From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 27 Aug 2008 14:51:16 -0400
Subject: [fs] cifs: latest upstream for RHEL-5.3
Message-id: 20080827145116.1b656d1b@tleilax.poochiereds.net
O-Subject: Re: [RHEL5.3 PATCH 5/6] BZ#453462: cifs: update CIFS to recent upstream code
Bugzilla: 453462 431868 443395 445522 446142 447400
RH-Acked-by: David Howells <dhowells@redhat.com>
RH-Acked-by: Peter Staubach <staubach@redhat.com>
On Tue, 26 Aug 2008 18:34:17 +0100
David Howells <dhowells@redhat.com> wrote:
I pushed some patches to Steve French for these fixes (and some others
that Dave and I discussed out of band). For now, he's just taken the
patch to add a destroy method for key_type_dns_resolver and pushed that
to Linus. The rest of the cleanups he wants to defer until 2.6.28.
Attached is a respun patch that just adds the patch that Steve has
taken. Since the other changes are "nice to haves" rather than real
bugfixes, I'm less keen on taking them into RHEL at this point. I'll
probably pull them in whenever I patch cifs for 5.4 though.
--
Jeff Layton <jlayton@redhat.com>
>From 07ea46ee5d8dce7174958275086a5373f4c80b53 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 27 Aug 2008 14:13:29 -0400
Subject: [PATCH] BZ#453462: cifs: update CIFS to recent upstream code
This patch represents a rollup of cifs-related patches that have gone
upstream since the last update of RHEL's CIFS code. Some of these
patches are not yet in Linus' tree, but are in Steve French's cifs-2.6
git tree and should make 2.6.27.
It takes care of a number of reported bugs against RHEL5:
431868: mounting CIFS subshare doesn't autoconvert prepath delimiters
443395: cp -p does not copy mtime to CIFS share
445522: clean up CIFS build warnings
446142: CIFS: slab error in kmem_cache_destroy(): cache `cifs_request':
Can't free all objects
447400: CIFS VFS: Send error in FindClose = -9
...plus a few bugs that were reported against RHEL4, but were also
problems in RHEL5. Additionally some new features were added:
231968: krb5 support -- cifs now supports mounting with krb5 auth
(no bz) DFS support -- cifs can now follow DFS shares
...both of the above require a userspace upcall program that should
ship as part of 5.3's samba-client package.
Finally, there is one user-visible behavior change:
When CIFS isn't using unix extensions, CIFS used to allow file mode
be set at inode creation time. While this was deliberately done (!),
it was problematic for several reasons. Upstream has been changed to
using a more sane default of not trying to keep the mode in memory
when it can't be permanently stored. The legacy behavior is available
via a new mount option (-o dynperm) but it isn't recommended for
several reasons. Obviously, this change will require a release note...
This patch is very large and probably isn't easily reviewable like
this. I have the set of ~180 patches broken out individually and
available on my people page or you can contact me and I can make them
available via other means.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
diff --git a/fs/Kconfig b/fs/Kconfig
index b8235ce..37d5638 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1919,7 +1919,7 @@ config SMB_NLS_REMOTE
smbmount from samba 2.2.0 or later supports this.
config CIFS
- tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)"
+ tristate "CIFS support (advanced network filesystem, SMBFS successor)"
depends on INET
select NLS
help
@@ -1930,20 +1930,16 @@ config CIFS
file servers such as Windows 2000 (including Windows 2003, NT 4
and Windows XP) as well by Samba (which provides excellent CIFS
server support for Linux and many other operating systems). Limited
- support for Windows ME and similar servers is provided as well.
- You must use the smbfs client filesystem to access older SMB servers
- such as OS/2 and DOS.
-
- The intent of the cifs module is to provide an advanced
- network file system client for mounting to CIFS compliant servers,
- including support for dfs (hierarchical name space), secure per-user
- session establishment, safe distributed caching (oplock), optional
- packet signing, Unicode and other internationalization improvements,
- and optional Winbind (nsswitch) integration. You do not need to enable
- cifs if running only a (Samba) server. It is possible to enable both
- smbfs and cifs (e.g. if you are using CIFS for accessing Windows 2003
- and Samba 3 servers, and smbfs for accessing old servers). If you need
- to mount to Samba or Windows from this machine, say Y.
+ support for OS/2 and Windows ME and similar servers is provided as
+ well.
+
+ The cifs module provides an advanced network file system
+ client for mounting to CIFS compliant servers. It includes
+ support for DFS (hierarchical name space), secure per-user
+ session establishment via Kerberos or NTLM or NTLMv2,
+ safe distributed caching (oplock), optional packet
+ signing, Unicode and other internationalization improvements.
+ If you need to mount to Samba or Windows from this machine, say Y.
config CIFS_STATS
bool "CIFS statistics"
@@ -1974,22 +1970,23 @@ config CIFS_WEAK_PW_HASH
(since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
security mechanisms. These hash the password more securely
than the mechanisms used in the older LANMAN version of the
- SMB protocol needed to establish sessions with old SMB servers.
+ SMB protocol but LANMAN based authentication is needed to
+ establish sessions with some old SMB servers.
Enabling this option allows the cifs module to mount to older
LANMAN based servers such as OS/2 and Windows 95, but such
mounts may be less secure than mounts using NTLM or more recent
security mechanisms if you are on a public network. Unless you
- have a need to access old SMB servers (and are on a private
+ have a need to access old SMB servers (and are on a private
network) you probably want to say N. Even if this support
- is enabled in the kernel build, they will not be used
- automatically. At runtime LANMAN mounts are disabled but
+ is enabled in the kernel build, LANMAN authentication will not be
+ used automatically. At runtime LANMAN mounts are disabled but
can be set to required (or optional) either in
/proc/fs/cifs (see fs/cifs/README for more detail) or via an
- option on the mount command. This support is disabled by
+ option on the mount command. This support is disabled by
default in order to reduce the possibility of a downgrade
attack.
-
+
If unsure, say N.
config CIFS_XATTR
@@ -2030,32 +2027,40 @@ config CIFS_DEBUG2
messages in some error paths, slowing performance. This
option can be turned off unless you are debugging
cifs problems. If unsure, say N.
-
+
config CIFS_EXPERIMENTAL
bool "CIFS Experimental Features (EXPERIMENTAL)"
depends on CIFS && EXPERIMENTAL
help
Enables cifs features under testing. These features are
- experimental and currently include support for writepages
- (multipage writebehind performance improvements) and directory
- change notification ie fcntl(F_DNOTIFY) as well as some security
- improvements. Some also depend on setting at runtime the
- pseudo-file /proc/fs/cifs/Experimental (which is disabled by
- default). See the file fs/cifs/README for more details.
-
- If unsure, say N.
+ experimental and currently include DFS support and directory
+ change notification ie fcntl(F_DNOTIFY), as well as the upcall
+ mechanism which will be used for Kerberos session negotiation
+ and uid remapping. Some of these features also may depend on
+ setting a value of 1 to the pseudo-file /proc/fs/cifs/Experimental
+ (which is disabled by default). See the file fs/cifs/README
+ for more details. If unsure, say N.
config CIFS_UPCALL
bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
- depends on CIFS_EXPERIMENTAL
- select CONNECTOR
+ depends on KEYS
help
- Enables an upcall mechanism for CIFS which will be used to contact
- userspace helper utilities to provide SPNEGO packaged Kerberos
- tickets which are needed to mount to certain secure servers
+ Enables an upcall mechanism for CIFS which accesses
+ userspace helper utilities to provide SPNEGO packaged (RFC 4178)
+ Kerberos tickets which are needed to mount to certain secure servers
(for which more secure Kerberos authentication is required). If
unsure, say N.
+config CIFS_DFS_UPCALL
+ bool "DFS feature support (EXPERIMENTAL)"
+ depends on CIFS_EXPERIMENTAL
+ depends on KEYS
+ help
+ Enables an upcall mechanism for CIFS which contacts userspace
+ helper utilities to provide server name resolution (host names to
+ IP addresses) which is needed for implicit mounts of DFS junction
+ points. If unsure, say N.
+
config NCP_FS
tristate "NCP file system support (to mount NetWare volumes)"
depends on IPX!=n || INET
diff --git a/fs/cifs/AUTHORS b/fs/cifs/AUTHORS
index 8848e4d..9c136d7 100644
--- a/fs/cifs/AUTHORS
+++ b/fs/cifs/AUTHORS
@@ -36,6 +36,7 @@ Miklos Szeredi
Kazeon team for various fixes especially for 2.4 version.
Asser Ferno (Change Notify support)
Shaggy (Dave Kleikamp) for inumerable small fs suggestions and some good cleanup
+Igor Mammedov (DFS support)
Test case and Bug Report contributors
-------------------------------------
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 0835c40..f33463f 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,24 +1,60 @@
-Version 1.50cRH
----------------
+Version 1.54
+------------
+Fix premature write failure on congested networks (we would give up
+on EAGAIN from the socket too quickly on large writes).
+Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
+Fix endian problems in acl (mode from/to cifs acl) on bigendian
+architectures. Fix problems with preserving timestamps on copying open
+files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
+on parent directory when server supports Unix Extensions but not POSIX
+create. Update cifs.upcall version to handle new Kerberos sec flags
+(this requires update of cifs.upcall program from Samba). Fix memory leak
+on dns_upcall (resolving DFS referralls).
+
+Version 1.53
+------------
+DFS support added (Microsoft Distributed File System client support needed
+for referrals which enable a hierarchical name space among servers).
+Disable temporary caching of mode bits to servers which do not support
+storing of mode (e.g. Windows servers, when client mounts without cifsacl
+mount option) and add new "dynperm" mount option to enable temporary caching
+of mode (enable old behavior). Fix hang on mount caused when server crashes
+tcp session during negotiate protocol.
+
+Version 1.52
+------------
+Fix oops on second mount to server when null auth is used.
+Enable experimental Kerberos support. Return writebehind errors on flush
+and sync so that events like out of disk space get reported properly on
+cached files. Fix setxattr failure to certain Samba versions. Fix mount
+of second share to disconnected server session (autoreconnect on this).
+Add ability to modify cifs acls for handling chmod (when mounted with
+cifsacl flag). Fix prefixpath path separator so we can handle mounts
+with prefixpaths longer than one directory (one path component) when
+mounted to Windows servers. Fix slow file open when cifsacl
+enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
+
+
+Version 1.51
+------------
Fix memory leak in statfs when mounted to very old servers (e.g.
Windows 9x). Add new feature "POSIX open" which allows servers
which support the current POSIX Extensions to provide better semantics
(e.g. delete for open files opened with posix open). Take into
-account umask on posix mkdir not just older style mkdir.
-
-Also, these patches were backported for this release:
- BZ#417961: [CIFS] Fix endian conversion problem in posix mkdir
- BZ#329431: [CIFS] Fix potential data corruption when writing out cached dirty pages
- BZ#417961: [CIFS] when mount helper missing fix slash wrong direction in share
- BZ#417961: [CIFS] fix error message about packet signing
- BZ#417961: [CIFS] Fix cifsd so shuts down when signing fails during mount
- BZ#417961: [CIFS] Reduce chance of list corruption in find_writable_file
- BZ#417961: [CIFS] Fix memory leak in statfs to very old servers
- BZ#373001: [CIFS] Fix buffer overflow if server sends corrupt response to small request
- BZ#417961: [CIFS] log better errors on failed mounts
- BZ#354371: [CIFS] fix oops on second mount to same server when null auth is used
- BZ#417961: [CIFS] Fix spurious reconnect on 2nd peek from read of SMB length
- BZ#336501: [CIFS] fix bad handling of EAGAIN error on kernel_recvmsg in cifs_demultiplex_thread
+account umask on posix mkdir not just older style mkdir. Add
+ability to mount to IPC$ share (which allows CIFS named pipes to be
+opened, read and written as if they were files). When 1st tree
+connect fails (e.g. due to signing negotiation failure) fix
+leak that causes cifsd not to stop and rmmod to fail to cleanup
+cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
+bigendian architectures. Fix possible memory corruption when
+EAGAIN returned on kern_recvmsg. Return better error if server
+requires packet signing but client has disabled it. When mounted
+with cifsacl mount option - mode bits are approximated based
+on the contents of the ACL of the file or directory. When cifs
+mount helper is missing convert make sure that UNC name
+has backslash (not forward slash) between ip address of server
+and the share name.
Version 1.50
------------
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index 6ecd9d6..6ba43fb 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -3,4 +3,11 @@
#
obj-$(CONFIG_CIFS) += cifs.o
-cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o fcntl.o readdir.o ioctl.o sess.o export.o
+cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
+ link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o \
+ md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o fcntl.o \
+ readdir.o ioctl.o sess.o export.o cifsacl.o
+
+cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o
+
+cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
diff --git a/fs/cifs/README b/fs/cifs/README
index b806b11..68b5c11 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -3,7 +3,14 @@ features such as hierarchical dfs like namespace, hardlinks, locking and more.
It was designed to comply with the SNIA CIFS Technical Reference (which
supersedes the 1992 X/Open SMB Standard) as well as to perform best practice
practical interoperability with Windows 2000, Windows XP, Samba and equivalent
-servers.
+servers. This code was developed in participation with the Protocol Freedom
+Information Foundation.
+
+Please see
+ http://protocolfreedom.org/ and
+ http://samba.org/samba/PFIF/
+for more details.
+
For questions or bug reports please contact:
sfrench@samba.org (sfrench@us.ibm.com)
@@ -56,7 +63,8 @@ the CIFS VFS web site) copy it to the same directory in which mount.smbfs and
similar files reside (usually /sbin). Although the helper software is not
required, mount.cifs is recommended. Eventually the Samba 3.0 utility program
"net" may also be helpful since it may someday provide easier mount syntax for
-users who are used to Windows e.g. net use <mount point> <UNC name or cifs URL>
+users who are used to Windows e.g.
+ net use <mount point> <UNC name or cifs URL>
Note that running the Winbind pam/nss module (logon service) on all of your
Linux clients is useful in mapping Uids and Gids consistently across the
domain to the proper network user. The mount.cifs mount helper can be
@@ -225,12 +233,9 @@ If no password is provided, mount.cifs will prompt for password entry
Restrictions
============
-Servers must support the NTLM SMB dialect (which is the most recent, supported
-by Samba and Windows NT version 4, 2000 and XP and many other SMB/CIFS servers)
Servers must support either "pure-TCP" (port 445 TCP/IP CIFS connections) or RFC
-1001/1002 support for "Netbios-Over-TCP/IP." Neither of these is likely to be a
-problem as most servers support this. IPv6 support is planned for the future,
-and is almost complete.
+1001/1002 support for "Netbios-Over-TCP/IP." This is not likely to be a
+problem as most servers support this.
Valid filenames differ between Windows and Linux. Windows typically restricts
filenames which contain certain reserved characters (e.g.the character :
@@ -251,7 +256,7 @@ A partial list of the supported mount options follows:
the CIFS session.
password The user password. If the mount helper is
installed, the user will be prompted for password
- if it is not supplied.
+ if not supplied.
ip The ip address of the target server
unc The target server Universal Network Name (export) to
mount.
@@ -286,7 +291,7 @@ A partial list of the supported mount options follows:
can be enabled by specifying file_mode and dir_mode on
the client. Note that the mount.cifs helper must be
at version 1.10 or higher to support specifying the uid
- (or gid) in non-numberic form.
+ (or gid) in non-numeric form.
gid Set the default gid for inodes (similar to above).
file_mode If CIFS Unix extensions are not supported by the server
this overrides the default mode for file inodes.
@@ -420,9 +425,10 @@ A partial list of the supported mount options follows:
acl Allow setfacl and getfacl to manage posix ACLs if server
supports them. (default)
noacl Do not allow setfacl and getfacl calls on this mount
- user_xattr Allow getting and setting user xattrs as OS/2 EAs (extended
- attributes) to the server (default) e.g. via setfattr
- and getfattr utilities.
+ user_xattr Allow getting and setting user xattrs (those attributes whose
+ name begins with "user." or "os2.") as OS/2 EAs (extended
+ attributes) to the server. This allows support of the
+ setfattr and getfattr utilities. (default)
nouser_xattr Do not allow getfattr/setfattr to get/set/list xattrs
mapchars Translate six of the seven reserved characters (not backslash)
*?<>|:
@@ -437,6 +443,7 @@ A partial list of the supported mount options follows:
nomapchars Do not translate any of these seven characters (default).
nocase Request case insensitive path name matching (case
sensitive is the default if the server suports it).
+ (mount option "ignorecase" is identical to "nocase")
posixpaths If CIFS Unix extensions are supported, attempt to
negotiate posix path name support which allows certain
characters forbidden in typical CIFS filenames, without
@@ -458,8 +465,10 @@ A partial list of the supported mount options follows:
byte range locks).
remount remount the share (often used to change from ro to rw mounts
or vice versa)
+ cifsacl Report mode bits (e.g. on stat) based on the Windows ACL for
+ the file. (EXPERIMENTAL)
servern Specify the server 's netbios name (RFC1001 name) to use
- when attempting to setup a session to the server. This is
+ when attempting to setup a session to the server.
This is needed for mounting to some older servers (such
as OS/2 or Windows 98 and Windows ME) since they do not
support a default server name. A server name can be up
@@ -474,6 +483,11 @@ A partial list of the supported mount options follows:
sign Must use packet signing (helps avoid unwanted data modification
by intermediate systems in the route). Note that signing
does not work with lanman or plaintext authentication.
+ seal Must seal (encrypt) all data on this mounted share before
+ sending on the network. Requires support for Unix Extensions.
+ Note that this differs from the sign mount option in that it
+ causes encryption of data sent over this mounted share but other
+ shares mounted to the same server are unaffected.
sec Security mode. Allowed values are:
none attempt to connection as a null user (no name)
krb5 Use Kerberos version 5 authentication
@@ -486,6 +500,9 @@ A partial list of the supported mount options follows:
ntlmv2i Use NTLMv2 password hashing with packet signing
lanman (if configured in kernel config) use older
lanman hash
+hard Retry file operations if server is not responding
+soft Limit retries to unresponsive servers (usually only
+ one retry) before returning an error. (default)
The mount.cifs mount helper also accepts a few mount options before -o
including:
@@ -536,8 +553,8 @@ SecurityFlags Flags which control security negotiation and
must use NTLM 0x02002
may use NTLMv2 0x00004
must use NTLMv2 0x04004
- may use Kerberos security (not implemented yet) 0x00008
- must use Kerberos (not implemented yet) 0x08008
+ may use Kerberos security 0x00008
+ must use Kerberos 0x08008
may use lanman (weak) password hash 0x00010
must use lanman password hash 0x10010
may use plaintext passwords 0x00020
@@ -584,8 +601,8 @@ Experimental When set to 1 used to enable certain experimental
performance enhancement was disabled when
signing turned on in case buffer was modified
just before it was sent, also this flag will
- be used to use the new experimental sessionsetup
- code).
+ be used to use the new experimental directory change
+ notification code).
These experimental features and tracing can be enabled by changing flags in
/proc/fs/cifs (after the cifs module has been installed or built into the
@@ -608,7 +625,8 @@ the start of smb requests and responses can be enabled via:
Two other experimental features are under development. To test these
requires enabling CONFIG_CIFS_EXPERIMENTAL
- ipv6 enablement
+ cifsacl support needed to retrieve approximated mode bits based on
+ the contents on the CIFS ACL.
DNOTIFY fcntl: needed for support of directory change
notification and perhaps later for file leases)
@@ -624,11 +642,30 @@ The statistics for the number of total SMBs and oplock breaks are different in
that they represent all for that share, not just those for which the server
returned success.
-Also note that "cat /proc/fs/cifs/DebugData" will display information about
-the active sessions and the shares that are mounted. Note: NTLMv2 enablement
-will not work since its implementation is not quite complete yet. Do not alter
-the ExtendedSecurity configuration value unless you are doing specific testing.
-Enabling extended security works to Windows 2000 Workstations and XP but not to
-Windows 2000 server or Samba since it does not usually send "raw NTLMSSP"
-(instead it sends NTLMSSP encapsulated in SPNEGO/GSSAPI, which support is not
-complete in the CIFS VFS yet).
+Also note that "cat /proc/fs/cifs/DebugData" will display information about
+the active sessions and the shares that are mounted.
+
+Enabling Kerberos (extended security) works but requires version 1.2 or later
+of the helper program cifs.upcall to be present and to be configured in the
+/etc/request-key.conf file. The cifs.upcall helper program is from the Samba
+project(http://www.samba.org). NTLM and NTLMv2 and LANMAN support do not
+require this helper. Note that NTLMv2 security (which does not require the
+cifs.upcall helper program), instead of using Kerberos, is sufficient for
+some use cases.
+
+Enabling DFS support (used to access shares transparently in an MS-DFS
+global name space) requires that CONFIG_CIFS_EXPERIMENTAL be enabled. In
+addition, DFS support for target shares which are specified as UNC
+names which begin with host names (rather than IP addresses) requires
+a user space helper (such as cifs.upcall) to be present in order to
+translate host names to ip address, and the user space helper must also
+be configured in the file /etc/request-key.conf
+
+To use cifs Kerberos and DFS support, the Linux keyutils package should be
+installed and something like the following lines should be added to the
+/etc/request-key.conf file:
+
+create cifs.spnego * * /usr/local/sbin/cifs.upcall %k
+create dns_resolver * * /usr/local/sbin/cifs.upcall %k
+
+
diff --git a/fs/cifs/TODO b/fs/cifs/TODO
index 29d4b27..5aff46c 100644
--- a/fs/cifs/TODO
+++ b/fs/cifs/TODO
@@ -1,4 +1,4 @@
-Version 1.49 April 26, 2007
+Version 1.53 May 20, 2008
A Partial List of Missing Features
==================================
@@ -16,26 +16,25 @@ SecurityDescriptors
c) Better pam/winbind integration (e.g. to handle uid mapping
better)
-d) Kerberos/SPNEGO session setup support - (started)
-
-e) Cleanup now unneeded SessSetup code in
+d) Cleanup now unneeded SessSetup code in
fs/cifs/connect.c and add back in NTLMSSP code if any servers
need it
-f) MD5-HMAC signing SMB PDUs when SPNEGO style SessionSetup
-used (Kerberos or NTLMSSP). Signing alreadyimplemented for NTLM
-and raw NTLMSSP already. This is important when enabling
-extended security and mounting to Windows 2003 Servers
+e) fix NTLMv2 signing when two mounts with different users to same
+server.
-g) Directory entry caching relies on a 1 second timer, rather than
+f) Directory entry caching relies on a 1 second timer, rather than
using FindNotify or equivalent. - (started)
-h) quota support (needs minor kernel change since quota calls
+g) quota support (needs minor kernel change since quota calls
to make it to network filesystems or deviceless filesystems)
-i) investigate sync behavior (including syncpage) and check
+h) investigate sync behavior (including syncpage) and check
for proper behavior of intr/nointr
+i) improve support for very old servers (OS/2 and Win9x for example)
+Including support for changing the time remotely (utimes command).
+
j) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
extra copy in/out of the socket buffers in some cases.
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 9fbbae8..427f374 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -77,8 +77,12 @@
#define SPNEGO_OID_LEN 7
#define NTLMSSP_OID_LEN 10
+#define KRB5_OID_LEN 7
+#define MSKRB5_OID_LEN 7
static unsigned long SPNEGO_OID[7] = { 1, 3, 6, 1, 5, 5, 2 };
static unsigned long NTLMSSP_OID[10] = { 1, 3, 6, 1, 4, 1, 311, 2, 2, 10 };
+static unsigned long KRB5_OID[7] = { 1, 2, 840, 113554, 1, 2, 2 };
+static unsigned long MSKRB5_OID[7] = { 1, 2, 840, 48018, 1, 2, 2 };
/*
* ASN.1 context.
@@ -204,6 +208,10 @@ asn1_header_decode(struct asn1_ctx *ctx,
if (!asn1_length_decode(ctx, &def, &len))
return 0;
+ /* primitive shall be definite, indefinite shall be constructed */
+ if (*con == ASN1_PRI && !def)
+ return 0;
+
if (def)
*eoc = ctx->pointer + len;
else
@@ -390,6 +398,11 @@ asn1_oid_decode(struct asn1_ctx *ctx,
unsigned long *optr;
size = eoc - ctx->pointer + 1;
+
+ /* first subid actually encodes first two subids */
+ if (size < 2 || size > UINT_MAX/sizeof(unsigned int))
+ return 0;
+
*oid = kmalloc(size * sizeof(unsigned long), GFP_ATOMIC);
if (*oid == NULL)
return 0;
@@ -461,7 +474,9 @@ decode_negTokenInit(unsigned char *security_blob, int length,
unsigned char *sequence_end;
unsigned long *oid = NULL;
unsigned int cls, con, tag, oidlen, rc;
- int use_ntlmssp = FALSE;
+ bool use_ntlmssp = false;
+ bool use_kerberos = false;
+ bool use_mskerberos = false;
*secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default*/
@@ -469,6 +484,7 @@ decode_negTokenInit(unsigned char *security_blob, int length,
asn1_open(&ctx, security_blob, length);
+ /* GSSAPI header */
if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
cFYI(1, ("Error decoding negTokenInit header"));
return 0;
@@ -476,150 +492,151 @@ decode_negTokenInit(unsigned char *security_blob, int length,
|| (tag != ASN1_EOC)) {
cFYI(1, ("cls = %d con = %d tag = %d", cls, con, tag));
return 0;
- } else {
- /* remember to free obj->oid */
- rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
- if (rc) {
- if ((tag == ASN1_OJI) && (cls == ASN1_PRI)) {
- rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
- if (rc) {
- rc = compare_oid(oid, oidlen,
- SPNEGO_OID,
- SPNEGO_OID_LEN);
- kfree(oid);
- }
- } else
- rc = 0;
- }
+ }
- if (!rc) {
- cFYI(1, ("Error decoding negTokenInit header"));
- return 0;
- }
+ /* Check for SPNEGO OID -- remember to free obj->oid */
+ rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
+ if (rc) {
+ if ((tag == ASN1_OJI) && (con == ASN1_PRI) &&
+ (cls == ASN1_UNI)) {
+ rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
+ if (rc) {
+ rc = compare_oid(oid, oidlen, SPNEGO_OID,
+ SPNEGO_OID_LEN);
+ kfree(oid);
+ }
+ } else
+ rc = 0;
+ }
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1, ("Error decoding negTokenInit"));
- return 0;
- } else if ((cls != ASN1_CTX) || (con != ASN1_CON)
- || (tag != ASN1_EOC)) {
- cFYI(1,
- ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
- cls, con, tag, end, *end));
- return 0;
- }
+ /* SPNEGO OID not present or garbled -- bail out */
+ if (!rc) {
+ cFYI(1, ("Error decoding negTokenInit header"));
+ return 0;
+ }
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1, ("Error decoding negTokenInit"));
- return 0;
- } else if ((cls != ASN1_UNI) || (con != ASN1_CON)
- || (tag != ASN1_SEQ)) {
- cFYI(1,
- ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
- cls, con, tag, end, *end));
- return 0;
- }
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding negTokenInit"));
+ return 0;
+ } else if ((cls != ASN1_CTX) || (con != ASN1_CON)
+ || (tag != ASN1_EOC)) {
+ cFYI(1,
+ ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
+ cls, con, tag, end, *end));
+ return 0;
+ }
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1, ("Error decoding 2nd part of negTokenInit"));
- return 0;
- } else if ((cls != ASN1_CTX) || (con != ASN1_CON)
- || (tag != ASN1_EOC)) {
- cFYI(1,
- ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
- cls, con, tag, end, *end));
- return 0;
- }
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding negTokenInit"));
+ return 0;
+ } else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+ || (tag != ASN1_SEQ)) {
+ cFYI(1,
+ ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
+ cls, con, tag, end, *end));
+ return 0;
+ }
- if (asn1_header_decode
- (&ctx, &sequence_end, &cls, &con, &tag) == 0) {
- cFYI(1, ("Error decoding 2nd part of negTokenInit"));
- return 0;
- } else if ((cls != ASN1_UNI) || (con != ASN1_CON)
- || (tag != ASN1_SEQ)) {
- cFYI(1,
- ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
- cls, con, tag, end, *end));
- return 0;
- }
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding 2nd part of negTokenInit"));
+ return 0;
+ } else if ((cls != ASN1_CTX) || (con != ASN1_CON)
+ || (tag != ASN1_EOC)) {
+ cFYI(1,
+ ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
+ cls, con, tag, end, *end));
+ return 0;
+ }
- while (!asn1_eoc_decode(&ctx, sequence_end)) {
- rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
- if (!rc) {
- cFYI(1,
- ("Error decoding negTokenInit hdr exit2"));
- return 0;
- }
- if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
- rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
- if (rc) {
- cFYI(1,
- ("OID len = %d oid = 0x%lx 0x%lx "
- "0x%lx 0x%lx",
- oidlen, *oid, *(oid + 1),
- *(oid + 2), *(oid + 3)));
- rc = compare_oid(oid, oidlen,
- NTLMSSP_OID, NTLMSSP_OID_LEN);
- kfree(oid);
- if (rc)
- use_ntlmssp = TRUE;
- }
- } else {
- cFYI(1, ("Should be an oid what is going on?"));
- }
- }
+ if (asn1_header_decode
+ (&ctx, &sequence_end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding 2nd part of negTokenInit"));
+ return 0;
+ } else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+ || (tag != ASN1_SEQ)) {
+ cFYI(1,
+ ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
+ cls, con, tag, end, *end));
+ return 0;
+ }
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1,
- ("Error decoding last part negTokenInit exit3"));
- return 0;
- } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
- /* tag = 3 indicating mechListMIC */
+ while (!asn1_eoc_decode(&ctx, sequence_end)) {
+ rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
+ if (!rc) {
cFYI(1,
- ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",
- cls, con, tag, end, *end));
+ ("Error decoding negTokenInit hdr exit2"));
return 0;
}
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1,
- ("Error decoding last part negTokenInit exit5"));
- return 0;
- } else if ((cls != ASN1_UNI) || (con != ASN1_CON)
- || (tag != ASN1_SEQ)) {
- cFYI(1, ("cls = %d con = %d tag = %d end = %p (%d)",
- cls, con, tag, end, *end));
+ if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
+ if (asn1_oid_decode(&ctx, end, &oid, &oidlen)) {
+
+ cFYI(1, ("OID len = %d oid = 0x%lx 0x%lx "
+ "0x%lx 0x%lx", oidlen, *oid,
+ *(oid + 1), *(oid + 2), *(oid + 3)));
+
+ if (compare_oid(oid, oidlen, MSKRB5_OID,
+ MSKRB5_OID_LEN) &&
+ !use_kerberos)
+ use_mskerberos = true;
+ else if (compare_oid(oid, oidlen, KRB5_OID,
+ KRB5_OID_LEN) &&
+ !use_mskerberos)
+ use_kerberos = true;
+ else if (compare_oid(oid, oidlen, NTLMSSP_OID,
+ NTLMSSP_OID_LEN))
+ use_ntlmssp = true;
+
+ kfree(oid);
+ }
+ } else {
+ cFYI(1, ("Should be an oid what is going on?"));
}
+ }
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1,
- ("Error decoding last part negTokenInit exit 7"));
- return 0;
- } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
- cFYI(1,
- ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",
- cls, con, tag, end, *end));
- return 0;
- }
- if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
- cFYI(1,
- ("Error decoding last part negTokenInit exit9"));
- return 0;
- } else if ((cls != ASN1_UNI) || (con != ASN1_PRI)
- || (tag != ASN1_GENSTR)) {
- cFYI(1,
- ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",
- cls, con, tag, end, *end));
- return 0;
- }
- cFYI(1, ("Need to call asn1_octets_decode() function for %s",
- ctx.pointer)); /* is this UTF-8 or ASCII? */
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding last part negTokenInit exit3"));
+ return 0;
+ } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
+ /* tag = 3 indicating mechListMIC */
+ cFYI(1, ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",
+ cls, con, tag, end, *end));
+ return 0;
+ }
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding last part negTokenInit exit5"));
+ return 0;
+ } else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+ || (tag != ASN1_SEQ)) {
+ cFYI(1, ("cls = %d con = %d tag = %d end = %p (%d)",
+ cls, con, tag, end, *end));
}
- /* if (use_kerberos)
- *secType = Kerberos
- else */
- if (use_ntlmssp) {
- *secType = NTLMSSP;
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding last part negTokenInit exit 7"));
+ return 0;
+ } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
+ cFYI(1, ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",
+ cls, con, tag, end, *end));
+ return 0;
}
+ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+ cFYI(1, ("Error decoding last part negTokenInit exit9"));
+ return 0;
+ } else if ((cls != ASN1_UNI) || (con != ASN1_PRI)
+ || (tag != ASN1_GENSTR)) {
+ cFYI(1, ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",
+ cls, con, tag, end, *end));
+ return 0;
+ }
+ cFYI(1, ("Need to call asn1_octets_decode() function for %s",
+ ctx.pointer)); /* is this UTF-8 or ASCII? */
+
+ if (use_kerberos)
+ *secType = Kerberos;
+ else if (use_mskerberos)
+ *secType = MSKerberos;
+ else if (use_ntlmssp)
+ *secType = NTLMSSP;
return 1;
}
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 73c4c41..ccb4a5f 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -79,28 +79,25 @@ void cifs_dump_mids(struct TCP_Server_Info *server)
spin_lock(&GlobalMid_Lock);
list_for_each(tmp, &server->pending_mid_q) {
mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
- if (mid_entry) {
- cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
- mid_entry->midState,
- (int)mid_entry->command,
- mid_entry->pid,
- mid_entry->tsk,
- mid_entry->mid));
+ cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
+ mid_entry->midState,
+ (int)mid_entry->command,
+ mid_entry->pid,
+ mid_entry->tsk,
+ mid_entry->mid));
#ifdef CONFIG_CIFS_STATS2
- cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
- mid_entry->largeBuf,
- mid_entry->resp_buf,
- mid_entry->when_received,
- jiffies));
+ cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
+ mid_entry->largeBuf,
+ mid_entry->resp_buf,
+ mid_entry->when_received,
+ jiffies));
#endif /* STATS2 */
- cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
- mid_entry->multiEnd));
- if (mid_entry->resp_buf) {
- cifs_dump_detail(mid_entry->resp_buf);
- cifs_dump_mem("existing buf: ",
- mid_entry->resp_buf,
- 62 /* fixme */);
- }
+ cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
+ mid_entry->multiEnd));
+ if (mid_entry->resp_buf) {
+ cifs_dump_detail(mid_entry->resp_buf);
+ cifs_dump_mem("existing buf: ",
+ mid_entry->resp_buf, 62);
}
}
spin_unlock(&GlobalMid_Lock);
@@ -108,9 +105,7 @@ void cifs_dump_mids(struct TCP_Server_Info *server)
#endif /* CONFIG_CIFS_DEBUG2 */
#ifdef CONFIG_PROC_FS
-static int
-cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
- int count, int *eof, void *data)
+static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
{
struct list_head *tmp;
struct list_head *tmp1;
@@ -118,23 +113,13 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
struct cifsSesInfo *ses;
struct cifsTconInfo *tcon;
int i;
- int length = 0;
- char *original_buf = buf;
-
- *beginBuffer = buf + offset;
- length =
- sprintf(buf,
+ seq_puts(m,
"Display Internal CIFS Data Structures for Debugging\n"
"---------------------------------------------------\n");
- buf += length;
- length = sprintf(buf, "CIFS Version %s\n", CIFS_VERSION);
- buf += length;
- length = sprintf(buf,
- "Active VFS Requests: %d\n", GlobalTotalActiveXid);
- buf += length;
- length = sprintf(buf, "Servers:");
- buf += length;
+ seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
+ seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
+ seq_printf(m, "Servers:");
i = 0;
read_lock(&GlobalSMBSeslock);
@@ -143,11 +128,10 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
if ((ses->serverDomain == NULL) || (ses->serverOS == NULL) ||
(ses->serverNOS == NULL)) {
- buf += sprintf(buf, "\nentry for %s not fully "
+ seq_printf(m, "\nentry for %s not fully "
"displayed\n\t", ses->serverName);
} else {
- length =
- sprintf(buf,
+ seq_printf(m,
"\n%d) Name: %s Domain: %s Mounts: %d OS:"
" %s \n\tNOS: %s\tCapability: 0x%x\n\tSMB"
" session status: %d\t",
@@ -155,10 +139,9 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
atomic_read(&ses->inUse),
ses->serverOS, ses->serverNOS,
ses->capabilities, ses->status);
- buf += length;
}
if (ses->server) {
- buf += sprintf(buf, "TCP status: %d\n\tLocal Users To "
+ seq_printf(m, "TCP status: %d\n\tLocal Users To "
"Server: %d SecMode: 0x%x Req On Wire: %d",
ses->server->tcpStatus,
atomic_read(&ses->server->socketUseCount),
@@ -166,41 +149,34 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
atomic_read(&ses->server->inFlight));
#ifdef CONFIG_CIFS_STATS2
- buf += sprintf(buf, " In Send: %d In MaxReq Wait: %d",
+ seq_printf(m, " In Send: %d In MaxReq Wait: %d",
atomic_read(&ses->server->inSend),
atomic_read(&ses->server->num_waiters));
#endif
- length = sprintf(buf, "\nMIDs:\n");
- buf += length;
+ seq_puts(m, "\nMIDs:\n");
spin_lock(&GlobalMid_Lock);
list_for_each(tmp1, &ses->server->pending_mid_q) {
mid_entry = list_entry(tmp1, struct
mid_q_entry,
qhead);
- if (mid_entry) {
- length = sprintf(buf,
- "State: %d com: %d pid:"
- " %d tsk: %p mid %d\n",
- mid_entry->midState,
- (int)mid_entry->command,
- mid_entry->pid,
- mid_entry->tsk,
- mid_entry->mid);
- buf += length;
- }
+ seq_printf(m, "State: %d com: %d pid:"
+ " %d tsk: %p mid %d\n",
+ mid_entry->midState,
+ (int)mid_entry->command,
+ mid_entry->pid,
+ mid_entry->tsk,
+ mid_entry->mid);
}
spin_unlock(&GlobalMid_Lock);
}
}
read_unlock(&GlobalSMBSeslock);
- sprintf(buf, "\n");
- buf++;
+ seq_putc(m, '\n');
- length = sprintf(buf, "Shares:");
- buf += length;
+ seq_puts(m, "Shares:");
i = 0;
read_lock(&GlobalSMBSeslock);
@@ -209,62 +185,52 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
i++;
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
- length = sprintf(buf, "\n%d) %s Uses: %d ", i,
+ seq_printf(m, "\n%d) %s Uses: %d ", i,
tcon->treeName, atomic_read(&tcon->useCount));
- buf += length;
if (tcon->nativeFileSystem) {
- length = sprintf(buf, "Type: %s ",
+ seq_printf(m, "Type: %s ",
tcon->nativeFileSystem);
- buf += length;
}
- length = sprintf(buf, "DevInfo: 0x%x Attributes: 0x%x"
+ seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x"
"\nPathComponentMax: %d Status: %d",
le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
le32_to_cpu(tcon->fsAttrInfo.Attributes),
le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
tcon->tidStatus);
- buf += length;
if (dev_type == FILE_DEVICE_DISK)
- length = sprintf(buf, " type: DISK ");
+ seq_puts(m, " type: DISK ");
else if (dev_type == FILE_DEVICE_CD_ROM)
- length = sprintf(buf, " type: CDROM ");
+ seq_puts(m, " type: CDROM ");
else
- length =
- sprintf(buf, " type: %d ", dev_type);
- buf += length;
- if (tcon->tidStatus == CifsNeedReconnect) {
- buf += sprintf(buf, "\tDISCONNECTED ");
- length += 14;
- }
+ seq_printf(m, " type: %d ", dev_type);
+
+ if (tcon->tidStatus == CifsNeedReconnect)
+ seq_puts(m, "\tDISCONNECTED ");
}
read_unlock(&GlobalSMBSeslock);
- length = sprintf(buf, "\n");
- buf += length;
+ seq_putc(m, '\n');
/* BB add code to dump additional info such as TCP session info now */
- /* Now calculate total size of returned data */
- length = buf - original_buf;
-
- if (offset + count >= length)
- *eof = 1;
- if (length < offset) {
- *eof = 1;
- return 0;
- } else {
- length = length - offset;
- }
- if (length > count)
- length = count;
+ return 0;
+}
- return length;
+static int cifs_debug_data_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_debug_data_proc_show, NULL);
}
-#ifdef CONFIG_CIFS_STATS
+static const struct file_operations cifs_debug_data_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_debug_data_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
-static int
-cifs_stats_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+#ifdef CONFIG_CIFS_STATS
+static ssize_t cifs_stats_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -308,236 +274,127 @@ cifs_stats_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
- int count, int *eof, void *data)
+static int cifs_stats_proc_show(struct seq_file *m, void *v)
{
- int item_length, i, length;
+ int i;
struct list_head *tmp;
struct cifsTconInfo *tcon;
- *beginBuffer = buf + offset;
-
- length = sprintf(buf,
+ seq_printf(m,
"Resources in use\nCIFS Session: %d\n",
sesInfoAllocCount.counter);
- buf += length;
- item_length =
- sprintf(buf, "Share (unique mount targets): %d\n",
+ seq_printf(m, "Share (unique mount targets): %d\n",
tconInfoAllocCount.counter);
- length += item_length;
- buf += item_length;
- item_length =
- sprintf(buf, "SMB Request/Response Buffer: %d Pool size: %d\n",
+ seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
bufAllocCount.counter,
cifs_min_rcv + tcpSesAllocCount.counter);
- length += item_length;
- buf += item_length;
- item_length =
- sprintf(buf, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
+ seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
smBufAllocCount.counter, cifs_min_small);
- length += item_length;
- buf += item_length;
#ifdef CONFIG_CIFS_STATS2
- item_length = sprintf(buf, "Total Large %d Small %d Allocations\n",
+ seq_printf(m, "Total Large %d Small %d Allocations\n",
atomic_read(&totBufAllocCount),
atomic_read(&totSmBufAllocCount));
- length += item_length;
- buf += item_length;
#endif /* CONFIG_CIFS_STATS2 */
- item_length =
- sprintf(buf, "Operations (MIDs): %d\n",
- midCount.counter);
- length += item_length;
- buf += item_length;
- item_length = sprintf(buf,
+ seq_printf(m, "Operations (MIDs): %d\n", midCount.counter);
+ seq_printf(m,
"\n%d session %d share reconnects\n",
tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
- length += item_length;
- buf += item_length;
- item_length = sprintf(buf,
+ seq_printf(m,
"Total vfs operations: %d maximum at one time: %d\n",
GlobalCurrentXid, GlobalMaxActiveXid);
- length += item_length;
- buf += item_length;
i = 0;
read_lock(&GlobalSMBSeslock);
list_for_each(tmp, &GlobalTreeConnectionList) {
i++;
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
- item_length = sprintf(buf, "\n%d) %s", i, tcon->treeName);
- buf += item_length;
- length += item_length;
- if (tcon->tidStatus == CifsNeedReconnect) {
- buf += sprintf(buf, "\tDISCONNECTED ");
- length += 14;
- }
- item_length = sprintf(buf, "\nSMBs: %d Oplock Breaks: %d",
+ seq_printf(m, "\n%d) %s", i, tcon->treeName);
+ if (tcon->tidStatus == CifsNeedReconnect)
+ seq_puts(m, "\tDISCONNECTED ");
+ seq_printf(m, "\nSMBs: %d Oplock Breaks: %d",
atomic_read(&tcon->num_smbs_sent),
atomic_read(&tcon->num_oplock_brks));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf, "\nReads: %d Bytes: %lld",
+ seq_printf(m, "\nReads: %d Bytes: %lld",
atomic_read(&tcon->num_reads),
(long long)(tcon->bytes_read));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf, "\nWrites: %d Bytes: %lld",
+ seq_printf(m, "\nWrites: %d Bytes: %lld",
atomic_read(&tcon->num_writes),
(long long)(tcon->bytes_written));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf,
+ seq_printf(m,
"\nLocks: %d HardLinks: %d Symlinks: %d",
atomic_read(&tcon->num_locks),
atomic_read(&tcon->num_hardlinks),
atomic_read(&tcon->num_symlinks));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf, "\nOpens: %d Closes: %d Deletes: %d",
+ seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
atomic_read(&tcon->num_opens),
atomic_read(&tcon->num_closes),
atomic_read(&tcon->num_deletes));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf, "\nMkdirs: %d Rmdirs: %d",
+ seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
atomic_read(&tcon->num_mkdirs),
atomic_read(&tcon->num_rmdirs));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf, "\nRenames: %d T2 Renames %d",
+ seq_printf(m, "\nRenames: %d T2 Renames %d",
atomic_read(&tcon->num_renames),
atomic_read(&tcon->num_t2renames));
- buf += item_length;
- length += item_length;
- item_length = sprintf(buf, "\nFindFirst: %d FNext %d FClose %d",
+ seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
atomic_read(&tcon->num_ffirst),
atomic_read(&tcon->num_fnext),
atomic_read(&tcon->num_fclose));
- buf += item_length;
- length += item_length;
}
read_unlock(&GlobalSMBSeslock);
- buf += sprintf(buf, "\n");
- length++;
-
- if (offset + count >= length)
- *eof = 1;
- if (length < offset) {
- *eof = 1;
- return 0;
- } else {
- length = length - offset;
- }
- if (length > count)
- length = count;
+ seq_putc(m, '\n');
+ return 0;
+}
- return length;
+static int cifs_stats_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_stats_proc_show, NULL);
}
-#endif
+
+static const struct file_operations cifs_stats_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_stats_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_stats_proc_write,
+};
+#endif /* STATS */
static struct proc_dir_entry *proc_fs_cifs;
-read_proc_t cifs_txanchor_read;
-static read_proc_t cifsFYI_read;
-static write_proc_t cifsFYI_write;
-static read_proc_t oplockEnabled_read;
-static write_proc_t oplockEnabled_write;
-static read_proc_t lookupFlag_read;
-static write_proc_t lookupFlag_write;
-static read_proc_t traceSMB_read;
-static write_proc_t traceSMB_write;
-static read_proc_t multiuser_mount_read;
-static write_proc_t multiuser_mount_write;
-static read_proc_t security_flags_read;
-static write_proc_t security_flags_write;
-/* static read_proc_t ntlmv2_enabled_read;
-static write_proc_t ntlmv2_enabled_write;
-static read_proc_t packet_signing_enabled_read;
-static write_proc_t packet_signing_enabled_write;*/
-static read_proc_t experimEnabled_read;
-static write_proc_t experimEnabled_write;
-static read_proc_t linuxExtensionsEnabled_read;
-static write_proc_t linuxExtensionsEnabled_write;
+static const struct file_operations cifsFYI_proc_fops;
+static const struct file_operations cifs_oplock_proc_fops;
+static const struct file_operations cifs_lookup_cache_proc_fops;
+static const struct file_operations traceSMB_proc_fops;
+static const struct file_operations cifs_multiuser_mount_proc_fops;
+static const struct file_operations cifs_security_flags_proc_fops;
+static const struct file_operations cifs_experimental_proc_fops;
+static const struct file_operations cifs_linux_ext_proc_fops;
void
cifs_proc_init(void)
{
- struct proc_dir_entry *pde;
-
proc_fs_cifs = proc_mkdir("cifs", proc_root_fs);
if (proc_fs_cifs == NULL)
return;
proc_fs_cifs->owner = THIS_MODULE;
- create_proc_read_entry("DebugData", 0, proc_fs_cifs,
- cifs_debug_data_read, NULL);
+ proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
#ifdef CONFIG_CIFS_STATS
- pde = create_proc_read_entry("Stats", 0, proc_fs_cifs,
- cifs_stats_read, NULL);
- if (pde)
- pde->write_proc = cifs_stats_write;
-#endif
- pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
- cifsFYI_read, NULL);
- if (pde)
- pde->write_proc = cifsFYI_write;
-
- pde =
- create_proc_read_entry("traceSMB", 0, proc_fs_cifs,
- traceSMB_read, NULL);
- if (pde)
- pde->write_proc = traceSMB_write;
-
- pde = create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs,
- oplockEnabled_read, NULL);
- if (pde)
- pde->write_proc = oplockEnabled_write;
-
- pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs,
- experimEnabled_read, NULL);
- if (pde)
- pde->write_proc = experimEnabled_write;
-
- pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
- linuxExtensionsEnabled_read, NULL);
- if (pde)
- pde->write_proc = linuxExtensionsEnabled_write;
-
- pde =
- create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs,
- multiuser_mount_read, NULL);
- if (pde)
- pde->write_proc = multiuser_mount_write;
-
- pde =
- create_proc_read_entry("SecurityFlags", 0, proc_fs_cifs,
- security_flags_read, NULL);
- if (pde)
- pde->write_proc = security_flags_write;
-
- pde =
- create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs,
- lookupFlag_read, NULL);
- if (pde)
- pde->write_proc = lookupFlag_write;
-
-/* pde =
- create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs,
- ntlmv2_enabled_read, NULL);
- if (pde)
- pde->write_proc = ntlmv2_enabled_write;
-
- pde =
- create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs,
- packet_signing_enabled_read, NULL);
- if (pde)
- pde->write_proc = packet_signing_enabled_write;*/
+ proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops);
+#endif /* STATS */
+ proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops);
+ proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
+ proc_create("OplockEnabled", 0, proc_fs_cifs, &cifs_oplock_proc_fops);
+ proc_create("Experimental", 0, proc_fs_cifs, &cifs_experimental_proc_fops);
+ proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs, &cifs_linux_ext_proc_fops);
+ proc_create("MultiuserMount", 0, proc_fs_cifs, &cifs_multiuser_mount_proc_fops);
+ proc_create("SecurityFlags", 0, proc_fs_cifs, &cifs_security_flags_proc_fops);
+ proc_create("LookupCacheEnabled", 0, proc_fs_cifs, &cifs_lookup_cache_proc_fops);
}
void
@@ -554,39 +411,26 @@ cifs_proc_clean(void)
#endif
remove_proc_entry("MultiuserMount", proc_fs_cifs);
remove_proc_entry("OplockEnabled", proc_fs_cifs);
-/* remove_proc_entry("NTLMV2Enabled",proc_fs_cifs); */
remove_proc_entry("SecurityFlags", proc_fs_cifs);
-/* remove_proc_entry("PacketSigningEnabled", proc_fs_cifs); */
remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
remove_proc_entry("Experimental", proc_fs_cifs);
remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
remove_proc_entry("cifs", proc_root_fs);
}
-static int
-cifsFYI_read(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int cifsFYI_proc_show(struct seq_file *m, void *v)
{
- int len;
-
- len = sprintf(page, "%d\n", cifsFYI);
-
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+ seq_printf(m, "%d\n", cifsFYI);
+ return 0;
+}
- return len;
+static int cifsFYI_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifsFYI_proc_show, NULL);
}
-static int
-cifsFYI_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -604,30 +448,28 @@ cifsFYI_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-oplockEnabled_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
+static const struct file_operations cifsFYI_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifsFYI_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifsFYI_proc_write,
+};
- len = sprintf(page, "%d\n", oplockEnabled);
-
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+static int cifs_oplock_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%d\n", oplockEnabled);
+ return 0;
+}
- return len;
+static int cifs_oplock_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_oplock_proc_show, NULL);
}
-static int
-oplockEnabled_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifs_oplock_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -643,30 +485,28 @@ oplockEnabled_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-experimEnabled_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%d\n", experimEnabled);
-
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
+static const struct file_operations cifs_oplock_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_oplock_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_oplock_proc_write,
+};
- if (len < 0)
- len = 0;
+static int cifs_experimental_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%d\n", experimEnabled);
+ return 0;
+}
- return len;
+static int cifs_experimental_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_experimental_proc_show, NULL);
}
-static int
-experimEnabled_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifs_experimental_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -684,29 +524,28 @@ experimEnabled_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-linuxExtensionsEnabled_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
+static const struct file_operations cifs_experimental_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_experimental_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_experimental_proc_write,
+};
- len = sprintf(page, "%d\n", linuxExtEnabled);
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%d\n", linuxExtEnabled);
+ return 0;
+}
- return len;
+static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_linux_ext_proc_show, NULL);
}
-static int
-linuxExtensionsEnabled_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifs_linux_ext_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -722,31 +561,28 @@ linuxExtensionsEnabled_write(struct file *file, const char __user *buffer,
return count;
}
+static const struct file_operations cifs_linux_ext_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_linux_ext_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_linux_ext_proc_write,
+};
-static int
-lookupFlag_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
{
- int len;
-
- len = sprintf(page, "%d\n", lookupCacheEnabled);
-
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+ seq_printf(m, "%d\n", lookupCacheEnabled);
+ return 0;
+}
- return len;
+static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_lookup_cache_proc_show, NULL);
}
-static int
-lookupFlag_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifs_lookup_cache_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -761,30 +597,29 @@ lookupFlag_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-traceSMB_read(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- int len;
- len = sprintf(page, "%d\n", traceSMB);
+static const struct file_operations cifs_lookup_cache_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_lookup_cache_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_lookup_cache_proc_write,
+};
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+static int traceSMB_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%d\n", traceSMB);
+ return 0;
+}
- return len;
+static int traceSMB_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, traceSMB_proc_show, NULL);
}
-static int
-traceSMB_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -800,30 +635,28 @@ traceSMB_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-multiuser_mount_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%d\n", multiuser_mount);
+static const struct file_operations traceSMB_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = traceSMB_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = traceSMB_proc_write,
+};
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%d\n", multiuser_mount);
+ return 0;
+}
- return len;
+static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_multiuser_mount_proc_show, NULL);
}
-static int
-multiuser_mount_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifs_multiuser_mount_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
int rc;
@@ -839,30 +672,28 @@ multiuser_mount_write(struct file *file, const char __user *buffer,
return count;
}
-static int
-security_flags_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "0x%x\n", extended_security);
-
- len -= off;
- *start = page + off;
+static const struct file_operations cifs_multiuser_mount_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_multiuser_mount_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_multiuser_mount_proc_write,
+};
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
+static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "0x%x\n", extended_security);
+ return 0;
+}
- return len;
+static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, cifs_security_flags_proc_show, NULL);
}
-static int
-security_flags_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+
+static ssize_t cifs_security_flags_proc_write(struct file *file,
+ const char __user *buffer, size_t count, loff_t *ppos)
{
unsigned int flags;
char flags_string[12];
@@ -918,4 +749,21 @@ security_flags_write(struct file *file, const char __user *buffer,
/* BB should we turn on MAY flags for other MUST options? */
return count;
}
-#endif
+
+static const struct file_operations cifs_security_flags_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = cifs_security_flags_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = cifs_security_flags_proc_write,
+};
+#else
+inline void cifs_proc_init(void)
+{
+}
+
+inline void cifs_proc_clean(void)
+{
+}
+#endif /* PROC_FS */
diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h
index c26cd0d..5eb3b83 100644
--- a/fs/cifs/cifs_debug.h
+++ b/fs/cifs/cifs_debug.h
@@ -25,8 +25,11 @@
void cifs_dump_mem(char *label, void *data, int length);
#ifdef CONFIG_CIFS_DEBUG2
+#define DBG2 2
void cifs_dump_detail(struct smb_hdr *);
void cifs_dump_mids(struct TCP_Server_Info *);
+#else
+#define DBG2 0
#endif
extern int traceSMB; /* flag which enables the function below */
void dump_smb(struct smb_hdr *, int);
@@ -64,10 +67,10 @@ extern int cifsERROR;
* ---------
*/
#else /* _CIFS_DEBUG */
-#define cERROR(button,prspec)
-#define cEVENT(format,arg...)
+#define cERROR(button, prspec)
+#define cEVENT(format, arg...)
#define cFYI(button, prspec)
-#define cifserror(format,arg...)
+#define cifserror(format, arg...)
#endif /* _CIFS_DEBUG */
#endif /* _H_CIFS_DEBUG */
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index fc768f8..1b74bd4 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -1,24 +1,15 @@
/*
- * fs/cifs/cifs_dfs_ref.c
+ * Contains the CIFS DFS referral mounting routines used for handling
+ * traversal via DFS junction point
*
- * Copyright (C) International Business Machines Corp., 2007
- * Author(s): Steve French (sfrench@us.ibm.com)
- * Igor Mammedov (niallain@gmail.com)
- * Contains the CIFS DFS upcall routines
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Copyright (c) 2007 Igor Mammedov
+ * Copyright (C) International Business Machines Corp., 2008
+ * Author(s): Igor Mammedov (niallain@gmail.com)
+ * Steve French (sfrench@us.ibm.com)
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
*/
#include <linux/dcache.h>
@@ -26,128 +17,56 @@
#include <linux/namei.h>
#include <linux/vfs.h>
#include <linux/fs.h>
-
-#include "cifsfs.h"
-#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
+#include "cifsfs.h"
+#include "dns_resolve.h"
#include "cifs_debug.h"
-#include "cifs_fs_sb.h"
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)
-#ifdef CONFIG_CIFS_EXPERIMENTAL
-LIST_HEAD(cifs_dfs_automount_list);
+#define CIFS_DECLARE_DELAYED_WORK(n, f) \
+ struct work_struct n = __WORK_INITIALIZER(n, (void (*)(void *))f, &(n))
-static void cifs_resolver_describe(const struct key *key, struct seq_file *m)
-{
- cFYI(1, ("%s: key->description: %s", __FUNCTION__, key->description ));
- seq_puts(m, key->description);
- seq_printf(m, ": %u", key->datalen);
-}
+static LIST_HEAD(cifs_dfs_automount_list);
-static int cifs_resolver_match(const struct key *key, const void *description)
-{
- cFYI(1, ("%s: key->description: %s ; desc: %s ", __FUNCTION__,
- key->description, (char *)description ));
- return strcmp(key->description, description) == 0;
-}
+static void cifs_dfs_expire_automounts(struct work_struct *work);
+static CIFS_DECLARE_DELAYED_WORK(cifs_dfs_automount_task,
+ cifs_dfs_expire_automounts);
+static int cifs_dfs_mountpoint_expiry_timeout = 500 * HZ;
-static int cifs_resolver_instantiate(struct key *key, const void *data,
- size_t datalen)
+static void cifs_dfs_expire_automounts(struct work_struct *work)
{
- char *ip = NULL;
- int rc;
- struct in_addr ip_addr;
-
- /* convert dot ip addr to numeric form */
- /* BB Do we have to pass datalen? Are we guaranteed that the key
- * is null terminated? */
- rc = cifs_inet_pton(AF_INET, (char *)data, &(ip_addr.s_addr));
- if (rc <= 0) {
- ip = kmalloc(datalen+1, GFP_KERNEL);
- if (ip == NULL) {
- return -ENOMEM;
- }
- strncpy( ip, (char *)data, datalen);
- ip[datalen] = 0;
+ struct list_head *list = &cifs_dfs_automount_list;
- cFYI(1, ("%s: failed to convert ip to binary: %s",
- __FUNCTION__, ip));
- kfree(ip);
- rc = -EINVAL;
- return rc;
- }
- rc = 0;
- key->payload.value = ip_addr.s_addr;
- return rc;
+ mark_mounts_for_expiry(list);
+ if (!list_empty(list))
+ schedule_delayed_work(&cifs_dfs_automount_task,
+ cifs_dfs_mountpoint_expiry_timeout);
}
-struct key_type key_type_cifs_resolver =
+void cifs_dfs_release_automount_timer(void)
{
- .name = "cifs_resolver",
- .def_datalen = sizeof(struct in_addr),
- .describe = cifs_resolver_describe,
- .instantiate = cifs_resolver_instantiate,
- .match = cifs_resolver_match,
-};
-
-
-int
-cifs_resolve_server_name_to_ip(const char *unc, struct in_addr *ip_addr) {
- int rc = -EAGAIN;
- struct key *rkey;
- char *name;
- int len;
-
- if ((!ip_addr) || (!unc)) {
- return -EINVAL;
- }
-
- /* search for server name delimiter */
- len = strlen( unc);
- if (len < 3) {
- cFYI(1, ("%s: unc is too short: %s",
- __FUNCTION__, unc ));
- return -EINVAL;
- }
- len -= 2;
- name = memchr(unc+2, '\\', len);
- if (!name) {
- cFYI(1, ("%s: probably server name is whole unc: %s",
- __FUNCTION__, unc ));
- } else {
- len = (name - unc) - 2/* leading // */;
- }
-
- name = kmalloc( len+1, GFP_KERNEL);
- if (name == NULL) {
- rc = -ENOMEM;
- return rc;
- }
- memcpy( name, unc+2, len);
- name[len] = 0;
-
- rkey = request_key(&key_type_cifs_resolver, name, "");
- if (!IS_ERR(rkey)) {
- ip_addr->s_addr = rkey->payload.value;
- cFYI(1, ("%s: resolved: %s to %u.%u.%u.%u", __FUNCTION__,
- rkey->description,
- NIPQUAD(ip_addr->s_addr)
- ));
-
- key_put(rkey);
- rc = 0;
- } else {
- cERROR(1, ("%s: unable to resolve: %s", __FUNCTION__, name));
- }
-
- kfree(name);
- return rc;
+ BUG_ON(!list_empty(&cifs_dfs_automount_list));
+ cancel_delayed_work(&cifs_dfs_automount_task);
+ flush_scheduled_work();
}
+void dfs_shrink_umount_helper(struct vfsmount *vfsmnt)
+{
+ shrink_submounts(vfsmnt, &cifs_dfs_automount_list);
+}
-char *
-cifs_get_share_name(const char *node_name)
+/**
+ * cifs_get_share_name - extracts share name from UNC
+ * @node_name: pointer to UNC string
+ *
+ * Extracts sharename form full UNC.
+ * i.e. strips from UNC trailing path that is not part of share
+ * name and fixup missing '\' in the begining of DFS node refferal
+ * if neccessary.
+ * Returns pointer to share name on success or NULL on error.
+ * Caller is responsible for freeing returned string.
+ */
+static char *cifs_get_share_name(const char *node_name)
{
int len;
char *UNC;
@@ -156,12 +75,11 @@ cifs_get_share_name(const char *node_name)
len = strlen(node_name);
UNC = kmalloc(len+2 /*for term null and additional \ if it's missed */,
GFP_KERNEL);
- if (!UNC) {
+ if (!UNC)
return NULL;
- }
/* get share name and server name */
- if (node_name[1] != '\\'){
+ if (node_name[1] != '\\') {
UNC[0] = '\\';
strncpy(UNC+1, node_name, len);
len++;
@@ -175,7 +93,7 @@ cifs_get_share_name(const char *node_name)
pSep = memchr(UNC+2, '\\', len-2);
if (!pSep) {
cERROR(1, ("%s: no server name end in node name: %s",
- __FUNCTION__, node_name ));
+ __func__, node_name));
kfree(UNC);
return NULL;
}
@@ -183,157 +101,176 @@ cifs_get_share_name(const char *node_name)
/* find sharename end */
pSep++;
pSep = memchr(UNC+(pSep-UNC), '\\', len-(pSep-UNC));
- if (!pSep) {
- cERROR(1, ("%s:2 cant find share name in node name: %s",
- __FUNCTION__, node_name ));
- kfree(UNC);
- return NULL;
+ if (pSep) {
+ /* trim path up to sharename end
+ * now we have share name in UNC */
+ *pSep = 0;
}
- /* trim path up to sharename end
- * * now we have share name in UNC */
- *pSep = 0;
- len = pSep-UNC;
return UNC;
}
-struct vfsmount *cifs_dfs_do_refmount(const struct vfsmount *mnt_parent,
- struct dentry *dentry, char *ref_unc)
+/**
+ * compose_mount_options - creates mount options for refferral
+ * @sb_mountdata: parent/root DFS mount options (template)
+ * @ref_unc: refferral server UNC
+ * @devname: pointer for saving device name
+ *
+ * creates mount options for submount based on template options sb_mountdata
+ * and replacing unc,ip,prefixpath options with ones we've got form ref_unc.
+ *
+ * Returns: pointer to new mount options or ERR_PTR.
+ * Caller is responcible for freeing retunrned value if it is not error.
+ */
+static char *compose_mount_options(const char *sb_mountdata,
+ const char *ref_unc,
+ char **devname)
{
int rc;
- struct cifs_sb_info *cifs_sb;
- struct sockaddr_in sin_server;
- struct vfsmount *mnt = ERR_PTR(-ENOENT);
char *mountdata;
int md_len;
- char *devname;
char *tkn_e;
- char srvIP[16];
+ char *srvIP = NULL;
char sep = ',';
int off, noff;
- cFYI(1, ("in %s", __FUNCTION__ ));
-
- cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
-
- if ( cifs_sb->mountdata == NULL ) {
+ if (sb_mountdata == NULL)
return ERR_PTR(-EINVAL);
- }
- devname = cifs_get_share_name(ref_unc);
- rc = cifs_resolve_server_name_to_ip( devname, &(sin_server.sin_addr));
- snprintf(srvIP, sizeof(srvIP), "%u.%u.%u.%u",
- NIPQUAD(sin_server.sin_addr));
+ *devname = cifs_get_share_name(ref_unc);
+ rc = dns_resolve_server_name_to_ip(*devname, &srvIP);
if (rc != 0) {
- if (devname) kfree(devname);
- cERROR(1, ("%s: failed to resolve server part of %s to IP",
- __FUNCTION__, devname ));
- rc = -EINVAL;
- return ERR_PTR(rc);
+ cERROR(1, ("%s: Failed to resolve server part of %s to IP",
+ __func__, *devname));
+ mountdata = ERR_PTR(rc);
+ goto compose_mount_options_out;
}
- srvIP[sizeof(srvIP)-1] = '\0';
- md_len = strlen(cifs_sb->mountdata) + sizeof(srvIP) +
- strlen(ref_unc) + 3;
+ md_len = strlen(sb_mountdata) + strlen(srvIP) + strlen(ref_unc) + 3;
mountdata = kzalloc(md_len+1, GFP_KERNEL);
+ if (mountdata == NULL) {
+ mountdata = ERR_PTR(-ENOMEM);
+ goto compose_mount_options_out;
+ }
- /* copy all options except unc,ip,prefixpath */
+ /* copy all options except of unc,ip,prefixpath */
off = 0;
- if (strncmp(cifs_sb->mountdata, "sep=", 4) == 0) {
- sep = cifs_sb->mountdata[4];
- strncpy(mountdata, cifs_sb->mountdata, 5);
+ if (strncmp(sb_mountdata, "sep=", 4) == 0) {
+ sep = sb_mountdata[4];
+ strncpy(mountdata, sb_mountdata, 5);
off += 5;
}
- while ( (tkn_e = strchr(cifs_sb->mountdata+off, sep)) ) {
- noff = (tkn_e - (cifs_sb->mountdata+off)) + 1;
- if (strnicmp(cifs_sb->mountdata+off, "unc=", 4) == 0) {
+ while ((tkn_e = strchr(sb_mountdata+off, sep))) {
+ noff = (tkn_e - (sb_mountdata+off)) + 1;
+ if (strnicmp(sb_mountdata+off, "unc=", 4) == 0) {
off += noff;
continue;
}
- if (strnicmp(cifs_sb->mountdata+off, "ip=", 3) == 0) {
+ if (strnicmp(sb_mountdata+off, "ip=", 3) == 0) {
off += noff;
continue;
}
- if (strnicmp(cifs_sb->mountdata+off, "prefixpath=", 3) == 0) {
+ if (strnicmp(sb_mountdata+off, "prefixpath=", 3) == 0) {
off += noff;
continue;
}
- strncat(mountdata, cifs_sb->mountdata+off, noff);
+ strncat(mountdata, sb_mountdata+off, noff);
off += noff;
}
- strcat(mountdata, cifs_sb->mountdata+off);
+ strcat(mountdata, sb_mountdata+off);
mountdata[md_len] = '\0';
- strcat(mountdata, ", ip="); strcat(mountdata, srvIP);
- strcat(mountdata, ", unc="); strcat(mountdata, devname);
- /* find prefixpath */
+
+ /* copy new IP and ref share name */
+ strcat(mountdata, ",ip=");
+ strcat(mountdata, srvIP);
+ strcat(mountdata, ",unc=");
+ strcat(mountdata, *devname);
+
+ /* find & copy prefixpath */
tkn_e = strchr(ref_unc+2, '\\');
- if ( tkn_e ) {
+ if (tkn_e) {
tkn_e = strchr(tkn_e+1, '\\');
- if ( tkn_e ) {
+ if (tkn_e) {
strcat(mountdata, ",prefixpath=");
- strcat(mountdata, tkn_e);
+ strcat(mountdata, tkn_e+1);
}
}
- /*cFYI(1,("%s: old mountdata: %s", __FUNCTION__,cifs_sb->mountdata));*/
- /*cFYI(1, ("%s: new mountdata: %s", __FUNCTION__, mountdata ));*/
+ /*cFYI(1,("%s: parent mountdata: %s", __func__,sb_mountdata));*/
+ /*cFYI(1, ("%s: submount mountdata: %s", __func__, mountdata ));*/
- mnt = vfs_kern_mount(&cifs_fs_type, 0, devname, mountdata);
- if (devname)
- kfree(devname);
- if (mountdata)
- kfree(mountdata);
- cFYI(1, ("leaving %s", __FUNCTION__ ));
- return mnt;
+compose_mount_options_out:
+ kfree(srvIP);
+ return mountdata;
}
-static char *build_full_dfs_path_from_dentry(struct dentry *dentry)
+
+static struct vfsmount *cifs_dfs_do_refmount(const struct vfsmount *mnt_parent,
+ struct dentry *dentry, char *ref_unc)
{
- char *full_path = NULL;
- char *search_path;
- char *tmp_path;
- size_t l_max_len;
struct cifs_sb_info *cifs_sb;
-
- if ( dentry->d_inode == NULL ) {
- return NULL;
- }
+ struct vfsmount *mnt;
+ char *mountdata;
+ char *devname = NULL;
cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
+ mountdata = compose_mount_options(cifs_sb->mountdata,
+ ref_unc, &devname);
- if ( cifs_sb->tcon == NULL ) {
- return NULL;
- }
+ if (IS_ERR(mountdata))
+ return (struct vfsmount *)mountdata;
- search_path = build_path_from_dentry(dentry);
- if (search_path == NULL) {
- return NULL;
- }
+ mnt = vfs_kern_mount(&cifs_fs_type, 0, devname, mountdata);
+ kfree(mountdata);
+ kfree(devname);
+ return mnt;
- if (cifs_sb->tcon->Flags & 0x2) {
- /* we should use full path name to correct working with DFS */
- l_max_len = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE + 1)
- + strnlen(search_path, MAX_PATHCONF) + 1;
- tmp_path = kmalloc(l_max_len, GFP_KERNEL);
- if (tmp_path == NULL) {
- kfree(search_path);
- return NULL;
- }
- strncpy(tmp_path, cifs_sb->tcon->treeName, l_max_len);
- strcat(tmp_path, search_path);
- tmp_path[l_max_len-1] = 0;
- full_path = tmp_path;
- kfree(search_path);
- } else {
- full_path = search_path;
+}
+
+static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd,
+ struct list_head *mntlist)
+{
+ /* stolen from afs code */
+ int err;
+
+ mntget(newmnt);
+ err = do_add_mount(newmnt, nd, nd->mnt->mnt_flags, mntlist);
+ switch (err) {
+ case 0:
+ dput(nd->dentry);
+ mntput(nd->mnt);
+ nd->mnt = newmnt;
+ nd->dentry = dget(newmnt->mnt_root);
+ schedule_delayed_work(&cifs_dfs_automount_task,
+ cifs_dfs_mountpoint_expiry_timeout);
+ break;
+ case -EBUSY:
+ /* someone else made a mount here whilst we were busy */
+ while (d_mountpoint(nd->dentry) &&
+ follow_down(&nd->mnt, &nd->dentry))
+ ;
+ err = 0;
+ default:
+ mntput(newmnt);
+ break;
}
- return full_path;
+ return err;
}
-static void *cifs_dfs_follow_mountpoint(struct dentry *dentry,
- struct nameidata *nd)
+static void dump_referral(const struct dfs_info3_param *ref)
{
- DFS_INFO3_PARAM *referrals = NULL;
+ cFYI(1, ("DFS: ref path: %s", ref->path_name));
+ cFYI(1, ("DFS: node path: %s", ref->node_name));
+ cFYI(1, ("DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type));
+ cFYI(1, ("DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag,
+ ref->path_consumed));
+}
+
+
+static void*
+cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
+{
+ struct dfs_info3_param *referrals = NULL;
unsigned int num_referrals = 0;
struct cifs_sb_info *cifs_sb;
struct cifsSesInfo *ses;
@@ -342,110 +279,76 @@ static void *cifs_dfs_follow_mountpoint(struct dentry *dentry,
int rc = 0;
struct vfsmount *mnt = ERR_PTR(-ENOENT);
- cFYI(1, ("in %s", __FUNCTION__ ));
+ cFYI(1, ("in %s", __func__));
BUG_ON(IS_ROOT(dentry));
xid = GetXid();
dput(nd->dentry);
nd->dentry = dget(dentry);
- if (d_mountpoint(nd->dentry)) {
- goto out_follow;
- }
-
- if ( dentry->d_inode == NULL ) {
- rc = -EINVAL;
- goto out_err;
- }
cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
ses = cifs_sb->tcon->ses;
- if ( !ses ) {
+ if (!ses) {
rc = -EINVAL;
goto out_err;
}
- full_path = build_full_dfs_path_from_dentry(dentry);
- if ( full_path == NULL ) {
+ full_path = build_path_from_dentry(dentry);
+ if (full_path == NULL) {
rc = -ENOMEM;
goto out_err;
}
rc = get_dfs_path(xid, ses , full_path, cifs_sb->local_nls,
- &num_referrals, &referrals,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ &num_referrals, &referrals,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
for (i = 0; i < num_referrals; i++) {
- cFYI(1, ("%s: ref path: %s", __FUNCTION__,
- referrals[i].path_name));
- cFYI(1, ("%s: node path: %s", __FUNCTION__,
- referrals[i].node_name ));
- cFYI(1, ("%s: fl: %hd, serv_type: %hd, ref_flags: %hd, "
- "path_consumed: %hd", __FUNCTION__,
- referrals[i].flags, referrals[i].server_type,
- referrals[i].ref_flag, referrals[i].PathConsumed));
-
- /* connect to storage node */
+ dump_referral(referrals+i);
+ /* connect to a storage node */
if (referrals[i].flags & DFSREF_STORAGE_SERVER) {
int len;
len = strlen(referrals[i].node_name);
if (len < 2) {
cERROR(1, ("%s: Net Address path too short: %s",
- __FUNCTION__, referrals[i].node_name ));
+ __func__, referrals[i].node_name));
rc = -EINVAL;
goto out_err;
- } else {
- mnt = cifs_dfs_do_refmount(nd->mnt,
- nd->dentry,
- referrals[i].node_name);
- cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p",
- __FUNCTION__,
- referrals[i].node_name, mnt));
- if ( !rc ) {
- /* have server so stop here & return */
- break;
- }
}
+ mnt = cifs_dfs_do_refmount(nd->mnt, nd->dentry,
+ referrals[i].node_name);
+ cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p",
+ __func__,
+ referrals[i].node_name, mnt));
+
+ /* complete mount procedure if we accured submount */
+ if (!IS_ERR(mnt))
+ break;
}
}
+ /* we need it cause for() above could exit without valid submount */
rc = PTR_ERR(mnt);
if (IS_ERR(mnt))
goto out_err;
- mntget(mnt);
- rc = do_add_mount(mnt, nd, nd->mnt->mnt_flags,
- &cifs_dfs_automount_list);
- if (rc < 0) {
- mntput(mnt);
- if (rc == -EBUSY)
- goto out_follow;
- goto out_err;
- }
- mntput(nd->mnt);
- dput(nd->dentry);
- nd->mnt = mnt;
- nd->dentry = dget(mnt->mnt_root);
+ nd->mnt->mnt_flags |= MNT_SHRINKABLE;
+ rc = add_mount_helper(mnt, nd, &cifs_dfs_automount_list);
out:
FreeXid(xid);
free_dfs_info_array(referrals, num_referrals);
- cFYI(1, ("leaving %s", __FUNCTION__ ));
+ kfree(full_path);
+ cFYI(1, ("leaving %s" , __func__));
return ERR_PTR(rc);
out_err:
- if ( full_path ) kfree(full_path);
path_release(nd);
goto out;
-out_follow:
- while (d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
- ;
- rc = 0;
- goto out;
}
struct inode_operations cifs_dfs_referral_inode_operations = {
.follow_link = cifs_dfs_follow_mountpoint,
};
-#endif /* CONFIG_CIFS_EXPERIMENTAL */
-#endif /* Kernel version 2.6.18 or higher */
\ No newline at end of file
+
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 34af556..877c854 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -30,6 +30,7 @@
#define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
#define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */
#define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */
+#define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
struct cifs_sb_info {
struct cifsTconInfo *tcon; /* primary mount */
@@ -43,6 +44,9 @@ struct cifs_sb_info {
mode_t mnt_dir_mode;
int mnt_cifs_flags;
int prepathlen;
- char *prepath;
+ char *prepath; /* relative path under the share to mount to */
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ char *mountdata; /* mount options received at mount time */
+#endif
};
#endif /* _CIFS_FS_SB_H */
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
new file mode 100644
index 0000000..ba38234
--- /dev/null
+++ b/fs/cifs/cifs_spnego.c
@@ -0,0 +1,145 @@
+/*
+ * fs/cifs/cifs_spnego.c -- SPNEGO upcall management for CIFS
+ *
+ * Copyright (c) 2007 Red Hat, Inc.
+ * Author(s): Jeff Layton (jlayton@redhat.com)
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/list.h>
+#include <linux/string.h>
+#include <keys/user-type.h>
+#include <linux/key.h>
+#include "cifsglob.h"
+#include "cifs_spnego.h"
+#include "cifs_debug.h"
+
+/* create a new cifs key */
+static int
+cifs_spnego_key_instantiate(struct key *key, const void *data, size_t datalen)
+{
+ char *payload;
+ int ret;
+
+ ret = -ENOMEM;
+ payload = kmalloc(datalen, GFP_KERNEL);
+ if (!payload)
+ goto error;
+
+ /* attach the data */
+ memcpy(payload, data, datalen);
+ rcu_assign_pointer(key->payload.data, payload);
+ ret = 0;
+
+error:
+ return ret;
+}
+
+static void
+cifs_spnego_key_destroy(struct key *key)
+{
+ kfree(key->payload.data);
+}
+
+
+/*
+ * keytype for CIFS spnego keys
+ */
+struct key_type cifs_spnego_key_type = {
+ .name = "cifs.spnego",
+ .instantiate = cifs_spnego_key_instantiate,
+ .match = user_match,
+ .destroy = cifs_spnego_key_destroy,
+ .describe = user_describe,
+};
+
+#define MAX_VER_STR_LEN 8 /* length of longest version string e.g.
+ strlen("ver=0xFF") */
+#define MAX_MECH_STR_LEN 13 /* length of longest security mechanism name, eg
+ in future could have strlen(";sec=ntlmsspi") */
+#define MAX_IPV6_ADDR_LEN 42 /* eg FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/60 */
+/* get a key struct with a SPNEGO security blob, suitable for session setup */
+struct key *
+cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
+{
+ struct TCP_Server_Info *server = sesInfo->server;
+ char *description, *dp;
+ size_t desc_len;
+ struct key *spnego_key;
+ const char *hostname = server->hostname;
+
+ /* length of fields (with semicolons): ver=0xyz ip4=ipaddress
+ host=hostname sec=mechanism uid=0xFF user=username */
+ desc_len = MAX_VER_STR_LEN +
+ 6 /* len of "host=" */ + strlen(hostname) +
+ 5 /* len of ";ipv4=" */ + MAX_IPV6_ADDR_LEN +
+ MAX_MECH_STR_LEN +
+ 7 /* len of ";uid=0x" */ + (sizeof(uid_t) * 2) +
+ 6 /* len of ";user=" */ + strlen(sesInfo->userName) + 1;
+
+ spnego_key = ERR_PTR(-ENOMEM);
+ description = kzalloc(desc_len, GFP_KERNEL);
+ if (description == NULL)
+ goto out;
+
+ dp = description;
+ /* start with version and hostname portion of UNC string */
+ spnego_key = ERR_PTR(-EINVAL);
+ sprintf(dp, "ver=0x%x;host=%s;", CIFS_SPNEGO_UPCALL_VERSION,
+ hostname);
+ dp = description + strlen(description);
+
+ /* add the server address */
+ if (server->addr.sockAddr.sin_family == AF_INET)
+ sprintf(dp, "ip4=" NIPQUAD_FMT,
+ NIPQUAD(server->addr.sockAddr.sin_addr));
+ else if (server->addr.sockAddr.sin_family == AF_INET6)
+ sprintf(dp, "ip6=" NIP6_SEQFMT,
+ NIP6(server->addr.sockAddr6.sin6_addr));
+ else
+ goto out;
+
+ dp = description + strlen(description);
+
+ /* for now, only sec=krb5 and sec=mskrb5 are valid */
+ if (server->secType == Kerberos)
+ sprintf(dp, ";sec=krb5");
+ else if (server->secType == MSKerberos)
+ sprintf(dp, ";sec=mskrb5");
+ else
+ goto out;
+
+ dp = description + strlen(description);
+ sprintf(dp, ";uid=0x%x", sesInfo->linux_uid);
+
+ dp = description + strlen(description);
+ sprintf(dp, ";user=%s", sesInfo->userName);
+
+ cFYI(1, ("key description = %s", description));
+ spnego_key = request_key(&cifs_spnego_key_type, description, "");
+
+#ifdef CONFIG_CIFS_DEBUG2
+ if (cifsFYI && !IS_ERR(spnego_key)) {
+ struct cifs_spnego_msg *msg = spnego_key->payload.data;
+ cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024U,
+ msg->secblob_len + msg->sesskey_len));
+ }
+#endif /* CONFIG_CIFS_DEBUG2 */
+
+out:
+ kfree(description);
+ return spnego_key;
+}
diff --git a/fs/cifs/cifs_spnego.h b/fs/cifs/cifs_spnego.h
new file mode 100644
index 0000000..e4041ec
--- /dev/null
+++ b/fs/cifs/cifs_spnego.h
@@ -0,0 +1,47 @@
+/*
+ * fs/cifs/cifs_spnego.h -- SPNEGO upcall management for CIFS
+ *
+ * Copyright (c) 2007 Red Hat, Inc.
+ * Author(s): Jeff Layton (jlayton@redhat.com)
+ * Steve French (sfrench@us.ibm.com)
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _CIFS_SPNEGO_H
+#define _CIFS_SPNEGO_H
+
+#define CIFS_SPNEGO_UPCALL_VERSION 2
+
+/*
+ * The version field should always be set to CIFS_SPNEGO_UPCALL_VERSION.
+ * The flags field is for future use. The request-key callout should set
+ * sesskey_len and secblob_len, and then concatenate the SessKey+SecBlob
+ * and stuff it in the data field.
+ */
+struct cifs_spnego_msg {
+ uint32_t version;
+ uint32_t flags;
+ uint32_t sesskey_len;
+ uint32_t secblob_len;
+ uint8_t data[1];
+};
+
+#ifdef __KERNEL__
+extern struct key_type cifs_spnego_key_type;
+extern struct key *cifs_get_spnego_key(struct cifsSesInfo *sesInfo);
+#endif /* KERNEL */
+
+#endif /* _CIFS_SPNEGO_H */
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index b5903b8..7d75272 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -32,7 +32,7 @@
*
*/
int
-cifs_strfromUCS_le(char *to, const __le16 * from,
+cifs_strfromUCS_le(char *to, const __le16 *from,
int len, const struct nls_table *codepage)
{
int i;
@@ -61,7 +61,7 @@ cifs_strfromUCS_le(char *to, const __le16 * from,
*
*/
int
-cifs_strtoUCS(__le16 * to, const char *from, int len,
+cifs_strtoUCS(__le16 *to, const char *from, int len,
const struct nls_table *codepage)
{
int charlen;
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index 143f4e4..92bb88d 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -263,7 +263,8 @@ UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2)
const wchar_t *anchor2 = ucs2;
while (*ucs1) {
- if (*ucs1 == *ucs2) { /* Partial match found */
+ if (*ucs1 == *ucs2) {
+ /* Partial match found */
ucs1++;
ucs2++;
} else {
@@ -288,7 +289,8 @@ UniToupper(register wchar_t uc)
{
register const struct UniCaseRange *rp;
- if (uc < sizeof (CifsUniUpperTable)) { /* Latin characters */
+ if (uc < sizeof(CifsUniUpperTable)) {
+ /* Latin characters */
return uc + CifsUniUpperTable[uc]; /* Use base tables */
} else {
rp = CifsUniUpperRange; /* Use range tables */
@@ -329,7 +331,8 @@ UniTolower(wchar_t uc)
{
register struct UniCaseRange *rp;
- if (uc < sizeof (UniLowerTable)) { /* Latin characters */
+ if (uc < sizeof(UniLowerTable)) {
+ /* Latin characters */
return uc + UniLowerTable[uc]; /* Use base tables */
} else {
rp = UniLowerRange; /* Use range tables */
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
new file mode 100644
index 0000000..57ecdc8
--- /dev/null
+++ b/fs/cifs/cifsacl.c
@@ -0,0 +1,736 @@
+/*
+ * fs/cifs/cifsacl.c
+ *
+ * Copyright (C) International Business Machines Corp., 2007,2008
+ * Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ * Contains the routines for mapping CIFS/NTFS ACLs
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "cifspdu.h"
+#include "cifsglob.h"
+#include "cifsacl.h"
+#include "cifsproto.h"
+#include "cifs_debug.h"
+
+
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+
+static struct cifs_wksid wksidarr[NUM_WK_SIDS] = {
+ {{1, 0, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0} }, "null user"},
+ {{1, 1, {0, 0, 0, 0, 0, 1}, {0, 0, 0, 0, 0} }, "nobody"},
+ {{1, 1, {0, 0, 0, 0, 0, 5}, {__constant_cpu_to_le32(11), 0, 0, 0, 0} }, "net-users"},
+ {{1, 1, {0, 0, 0, 0, 0, 5}, {__constant_cpu_to_le32(18), 0, 0, 0, 0} }, "sys"},
+ {{1, 2, {0, 0, 0, 0, 0, 5}, {__constant_cpu_to_le32(32), __constant_cpu_to_le32(544), 0, 0, 0} }, "root"},
+ {{1, 2, {0, 0, 0, 0, 0, 5}, {__constant_cpu_to_le32(32), __constant_cpu_to_le32(545), 0, 0, 0} }, "users"},
+ {{1, 2, {0, 0, 0, 0, 0, 5}, {__constant_cpu_to_le32(32), __constant_cpu_to_le32(546), 0, 0, 0} }, "guest"} }
+;
+
+
+/* security id for everyone */
+static const struct cifs_sid sid_everyone = {
+ 1, 1, {0, 0, 0, 0, 0, 1}, {0} };
+/* group users */
+static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {} };
+
+
+int match_sid(struct cifs_sid *ctsid)
+{
+ int i, j;
+ int num_subauth, num_sat, num_saw;
+ struct cifs_sid *cwsid;
+
+ if (!ctsid)
+ return -1;
+
+ for (i = 0; i < NUM_WK_SIDS; ++i) {
+ cwsid = &(wksidarr[i].cifssid);
+
+ /* compare the revision */
+ if (ctsid->revision != cwsid->revision)
+ continue;
+
+ /* compare all of the six auth values */
+ for (j = 0; j < 6; ++j) {
+ if (ctsid->authority[j] != cwsid->authority[j])
+ break;
+ }
+ if (j < 6)
+ continue; /* all of the auth values did not match */
+
+ /* compare all of the subauth values if any */
+ num_sat = ctsid->num_subauth;
+ num_saw = cwsid->num_subauth;
+ num_subauth = num_sat < num_saw ? num_sat : num_saw;
+ if (num_subauth) {
+ for (j = 0; j < num_subauth; ++j) {
+ if (ctsid->sub_auth[j] != cwsid->sub_auth[j])
+ break;
+ }
+ if (j < num_subauth)
+ continue; /* all sub_auth values do not match */
+ }
+
+ cFYI(1, ("matching sid: %s\n", wksidarr[i].sidname));
+ return 0; /* sids compare/match */
+ }
+
+ cFYI(1, ("No matching sid"));
+ return -1;
+}
+
+/* if the two SIDs (roughly equivalent to a UUID for a user or group) are
+ the same returns 1, if they do not match returns 0 */
+int compare_sids(const struct cifs_sid *ctsid, const struct cifs_sid *cwsid)
+{
+ int i;
+ int num_subauth, num_sat, num_saw;
+
+ if ((!ctsid) || (!cwsid))
+ return 0;
+
+ /* compare the revision */
+ if (ctsid->revision != cwsid->revision)
+ return 0;
+
+ /* compare all of the six auth values */
+ for (i = 0; i < 6; ++i) {
+ if (ctsid->authority[i] != cwsid->authority[i])
+ return 0;
+ }
+
+ /* compare all of the subauth values if any */
+ num_sat = ctsid->num_subauth;
+ num_saw = cwsid->num_subauth;
+ num_subauth = num_sat < num_saw ? num_sat : num_saw;
+ if (num_subauth) {
+ for (i = 0; i < num_subauth; ++i) {
+ if (ctsid->sub_auth[i] != cwsid->sub_auth[i])
+ return 0;
+ }
+ }
+
+ return 1; /* sids compare/match */
+}
+
+
+/* copy ntsd, owner sid, and group sid from a security descriptor to another */
+static void copy_sec_desc(const struct cifs_ntsd *pntsd,
+ struct cifs_ntsd *pnntsd, __u32 sidsoffset)
+{
+ int i;
+
+ struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
+ struct cifs_sid *nowner_sid_ptr, *ngroup_sid_ptr;
+
+ /* copy security descriptor control portion */
+ pnntsd->revision = pntsd->revision;
+ pnntsd->type = pntsd->type;
+ pnntsd->dacloffset = cpu_to_le32(sizeof(struct cifs_ntsd));
+ pnntsd->sacloffset = 0;
+ pnntsd->osidoffset = cpu_to_le32(sidsoffset);
+ pnntsd->gsidoffset = cpu_to_le32(sidsoffset + sizeof(struct cifs_sid));
+
+ /* copy owner sid */
+ owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+ le32_to_cpu(pntsd->osidoffset));
+ nowner_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset);
+
+ nowner_sid_ptr->revision = owner_sid_ptr->revision;
+ nowner_sid_ptr->num_subauth = owner_sid_ptr->num_subauth;
+ for (i = 0; i < 6; i++)
+ nowner_sid_ptr->authority[i] = owner_sid_ptr->authority[i];
+ for (i = 0; i < 5; i++)
+ nowner_sid_ptr->sub_auth[i] = owner_sid_ptr->sub_auth[i];
+
+ /* copy group sid */
+ group_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+ le32_to_cpu(pntsd->gsidoffset));
+ ngroup_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset +
+ sizeof(struct cifs_sid));
+
+ ngroup_sid_ptr->revision = group_sid_ptr->revision;
+ ngroup_sid_ptr->num_subauth = group_sid_ptr->num_subauth;
+ for (i = 0; i < 6; i++)
+ ngroup_sid_ptr->authority[i] = group_sid_ptr->authority[i];
+ for (i = 0; i < 5; i++)
+ ngroup_sid_ptr->sub_auth[i] = group_sid_ptr->sub_auth[i];
+
+ return;
+}
+
+
+/*
+ change posix mode to reflect permissions
+ pmode is the existing mode (we only want to overwrite part of this
+ bits to set can be: S_IRWXU, S_IRWXG or S_IRWXO ie 00700 or 00070 or 00007
+*/
+static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
+ umode_t *pbits_to_set)
+{
+ __u32 flags = le32_to_cpu(ace_flags);
+ /* the order of ACEs is important. The canonical order is to begin with
+ DENY entries followed by ALLOW, otherwise an allow entry could be
+ encountered first, making the subsequent deny entry like "dead code"
+ which would be superflous since Windows stops when a match is made
+ for the operation you are trying to perform for your user */
+
+ /* For deny ACEs we change the mask so that subsequent allow access
+ control entries do not turn on the bits we are denying */
+ if (type == ACCESS_DENIED) {
+ if (flags & GENERIC_ALL)
+ *pbits_to_set &= ~S_IRWXUGO;
+
+ if ((flags & GENERIC_WRITE) ||
+ ((flags & FILE_WRITE_RIGHTS) == FILE_WRITE_RIGHTS))
+ *pbits_to_set &= ~S_IWUGO;
+ if ((flags & GENERIC_READ) ||
+ ((flags & FILE_READ_RIGHTS) == FILE_READ_RIGHTS))
+ *pbits_to_set &= ~S_IRUGO;
+ if ((flags & GENERIC_EXECUTE) ||
+ ((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS))
+ *pbits_to_set &= ~S_IXUGO;
+ return;
+ } else if (type != ACCESS_ALLOWED) {
+ cERROR(1, ("unknown access control type %d", type));
+ return;
+ }
+ /* else ACCESS_ALLOWED type */
+
+ if (flags & GENERIC_ALL) {
+ *pmode |= (S_IRWXUGO & (*pbits_to_set));
+ cFYI(DBG2, ("all perms"));
+ return;
+ }
+ if ((flags & GENERIC_WRITE) ||
+ ((flags & FILE_WRITE_RIGHTS) == FILE_WRITE_RIGHTS))
+ *pmode |= (S_IWUGO & (*pbits_to_set));
+ if ((flags & GENERIC_READ) ||
+ ((flags & FILE_READ_RIGHTS) == FILE_READ_RIGHTS))
+ *pmode |= (S_IRUGO & (*pbits_to_set));
+ if ((flags & GENERIC_EXECUTE) ||
+ ((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS))
+ *pmode |= (S_IXUGO & (*pbits_to_set));
+
+ cFYI(DBG2, ("access flags 0x%x mode now 0x%x", flags, *pmode));
+ return;
+}
+
+/*
+ Generate access flags to reflect permissions mode is the existing mode.
+ This function is called for every ACE in the DACL whose SID matches
+ with either owner or group or everyone.
+*/
+
+static void mode_to_access_flags(umode_t mode, umode_t bits_to_use,
+ __u32 *pace_flags)
+{
+ /* reset access mask */
+ *pace_flags = 0x0;
+
+ /* bits to use are either S_IRWXU or S_IRWXG or S_IRWXO */
+ mode &= bits_to_use;
+
+ /* check for R/W/X UGO since we do not know whose flags
+ is this but we have cleared all the bits sans RWX for
+ either user or group or other as per bits_to_use */
+ if (mode & S_IRUGO)
+ *pace_flags |= SET_FILE_READ_RIGHTS;
+ if (mode & S_IWUGO)
+ *pace_flags |= SET_FILE_WRITE_RIGHTS;
+ if (mode & S_IXUGO)
+ *pace_flags |= SET_FILE_EXEC_RIGHTS;
+
+ cFYI(DBG2, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags));
+ return;
+}
+
+static __u16 fill_ace_for_sid(struct cifs_ace *pntace,
+ const struct cifs_sid *psid, __u64 nmode, umode_t bits)
+{
+ int i;
+ __u16 size = 0;
+ __u32 access_req = 0;
+
+ pntace->type = ACCESS_ALLOWED;
+ pntace->flags = 0x0;
+ mode_to_access_flags(nmode, bits, &access_req);
+ if (!access_req)
+ access_req = SET_MINIMUM_RIGHTS;
+ pntace->access_req = cpu_to_le32(access_req);
+
+ pntace->sid.revision = psid->revision;
+ pntace->sid.num_subauth = psid->num_subauth;
+ for (i = 0; i < 6; i++)
+ pntace->sid.authority[i] = psid->authority[i];
+ for (i = 0; i < psid->num_subauth; i++)
+ pntace->sid.sub_auth[i] = psid->sub_auth[i];
+
+ size = 1 + 1 + 2 + 4 + 1 + 1 + 6 + (psid->num_subauth * 4);
+ pntace->size = cpu_to_le16(size);
+
+ return size;
+}
+
+
+#ifdef CONFIG_CIFS_DEBUG2
+static void dump_ace(struct cifs_ace *pace, char *end_of_acl)
+{
+ int num_subauth;
+
+ /* validate that we do not go past end of acl */
+
+ if (le16_to_cpu(pace->size) < 16) {
+ cERROR(1, ("ACE too small, %d", le16_to_cpu(pace->size)));
+ return;
+ }
+
+ if (end_of_acl < (char *)pace + le16_to_cpu(pace->size)) {
+ cERROR(1, ("ACL too small to parse ACE"));
+ return;
+ }
+
+ num_subauth = pace->sid.num_subauth;
+ if (num_subauth) {
+ int i;
+ cFYI(1, ("ACE revision %d num_auth %d type %d flags %d size %d",
+ pace->sid.revision, pace->sid.num_subauth, pace->type,
+ pace->flags, le16_to_cpu(pace->size)));
+ for (i = 0; i < num_subauth; ++i) {
+ cFYI(1, ("ACE sub_auth[%d]: 0x%x", i,
+ le32_to_cpu(pace->sid.sub_auth[i])));
+ }
+
+ /* BB add length check to make sure that we do not have huge
+ num auths and therefore go off the end */
+ }
+
+ return;
+}
+#endif
+
+
+static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
+ struct cifs_sid *pownersid, struct cifs_sid *pgrpsid,
+ struct inode *inode)
+{
+ int i;
+ int num_aces = 0;
+ int acl_size;
+ char *acl_base;
+ struct cifs_ace **ppace;
+
+ /* BB need to add parm so we can store the SID BB */
+
+ if (!pdacl) {
+ /* no DACL in the security descriptor, set
+ all the permissions for user/group/other */
+ inode->i_mode |= S_IRWXUGO;
+ return;
+ }
+
+ /* validate that we do not go past end of acl */
+ if (end_of_acl < (char *)pdacl + le16_to_cpu(pdacl->size)) {
+ cERROR(1, ("ACL too small to parse DACL"));
+ return;
+ }
+
+ cFYI(DBG2, ("DACL revision %d size %d num aces %d",
+ le16_to_cpu(pdacl->revision), le16_to_cpu(pdacl->size),
+ le32_to_cpu(pdacl->num_aces)));
+
+ /* reset rwx permissions for user/group/other.
+ Also, if num_aces is 0 i.e. DACL has no ACEs,
+ user/group/other have no permissions */
+ inode->i_mode &= ~(S_IRWXUGO);
+
+ acl_base = (char *)pdacl;
+ acl_size = sizeof(struct cifs_acl);
+
+ num_aces = le32_to_cpu(pdacl->num_aces);
+ if (num_aces > 0) {
+ umode_t user_mask = S_IRWXU;
+ umode_t group_mask = S_IRWXG;
+ umode_t other_mask = S_IRWXO;
+
+ ppace = kmalloc(num_aces * sizeof(struct cifs_ace *),
+ GFP_KERNEL);
+
+ for (i = 0; i < num_aces; ++i) {
+ ppace[i] = (struct cifs_ace *) (acl_base + acl_size);
+#ifdef CONFIG_CIFS_DEBUG2
+ dump_ace(ppace[i], end_of_acl);
+#endif
+ if (compare_sids(&(ppace[i]->sid), pownersid))
+ access_flags_to_mode(ppace[i]->access_req,
+ ppace[i]->type,
+ &(inode->i_mode),
+ &user_mask);
+ if (compare_sids(&(ppace[i]->sid), pgrpsid))
+ access_flags_to_mode(ppace[i]->access_req,
+ ppace[i]->type,
+ &(inode->i_mode),
+ &group_mask);
+ if (compare_sids(&(ppace[i]->sid), &sid_everyone))
+ access_flags_to_mode(ppace[i]->access_req,
+ ppace[i]->type,
+ &(inode->i_mode),
+ &other_mask);
+
+/* memcpy((void *)(&(cifscred->aces[i])),
+ (void *)ppace[i],
+ sizeof(struct cifs_ace)); */
+
+ acl_base = (char *)ppace[i];
+ acl_size = le16_to_cpu(ppace[i]->size);
+ }
+
+ kfree(ppace);
+ }
+
+ return;
+}
+
+
+static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid,
+ struct cifs_sid *pgrpsid, __u64 nmode)
+{
+ u16 size = 0;
+ struct cifs_acl *pnndacl;
+
+ pnndacl = (struct cifs_acl *)((char *)pndacl + sizeof(struct cifs_acl));
+
+ size += fill_ace_for_sid((struct cifs_ace *) ((char *)pnndacl + size),
+ pownersid, nmode, S_IRWXU);
+ size += fill_ace_for_sid((struct cifs_ace *)((char *)pnndacl + size),
+ pgrpsid, nmode, S_IRWXG);
+ size += fill_ace_for_sid((struct cifs_ace *)((char *)pnndacl + size),
+ &sid_everyone, nmode, S_IRWXO);
+
+ pndacl->size = cpu_to_le16(size + sizeof(struct cifs_acl));
+ pndacl->num_aces = cpu_to_le32(3);
+
+ return 0;
+}
+
+
+static int parse_sid(struct cifs_sid *psid, char *end_of_acl)
+{
+ /* BB need to add parm so we can store the SID BB */
+
+ /* validate that we do not go past end of ACL - sid must be at least 8
+ bytes long (assuming no sub-auths - e.g. the null SID */
+ if (end_of_acl < (char *)psid + 8) {
+ cERROR(1, ("ACL too small to parse SID %p", psid));
+ return -EINVAL;
+ }
+
+ if (psid->num_subauth) {
+#ifdef CONFIG_CIFS_DEBUG2
+ int i;
+ cFYI(1, ("SID revision %d num_auth %d",
+ psid->revision, psid->num_subauth));
+
+ for (i = 0; i < psid->num_subauth; i++) {
+ cFYI(1, ("SID sub_auth[%d]: 0x%x ", i,
+ le32_to_cpu(psid->sub_auth[i])));
+ }
+
+ /* BB add length check to make sure that we do not have huge
+ num auths and therefore go off the end */
+ cFYI(1, ("RID 0x%x",
+ le32_to_cpu(psid->sub_auth[psid->num_subauth-1])));
+#endif
+ }
+
+ return 0;
+}
+
+
+/* Convert CIFS ACL to POSIX form */
+static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
+ struct inode *inode)
+{
+ int rc;
+ struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
+ struct cifs_acl *dacl_ptr; /* no need for SACL ptr */
+ char *end_of_acl = ((char *)pntsd) + acl_len;
+ __u32 dacloffset;
+
+ if ((inode == NULL) || (pntsd == NULL))
+ return -EIO;
+
+ owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+ le32_to_cpu(pntsd->osidoffset));
+ group_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+ le32_to_cpu(pntsd->gsidoffset));
+ dacloffset = le32_to_cpu(pntsd->dacloffset);
+ dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset);
+ cFYI(DBG2, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
+ "sacloffset 0x%x dacloffset 0x%x",
+ pntsd->revision, pntsd->type, le32_to_cpu(pntsd->osidoffset),
+ le32_to_cpu(pntsd->gsidoffset),
+ le32_to_cpu(pntsd->sacloffset), dacloffset));
+/* cifs_dump_mem("owner_sid: ", owner_sid_ptr, 64); */
+ rc = parse_sid(owner_sid_ptr, end_of_acl);
+ if (rc)
+ return rc;
+
+ rc = parse_sid(group_sid_ptr, end_of_acl);
+ if (rc)
+ return rc;
+
+ if (dacloffset)
+ parse_dacl(dacl_ptr, end_of_acl, owner_sid_ptr,
+ group_sid_ptr, inode);
+ else
+ cFYI(1, ("no ACL")); /* BB grant all or default perms? */
+
+/* cifscred->uid = owner_sid_ptr->rid;
+ cifscred->gid = group_sid_ptr->rid;
+ memcpy((void *)(&(cifscred->osid)), (void *)owner_sid_ptr,
+ sizeof(struct cifs_sid));
+ memcpy((void *)(&(cifscred->gsid)), (void *)group_sid_ptr,
+ sizeof(struct cifs_sid)); */
+
+
+ return 0;
+}
+
+
+/* Convert permission bits from mode to equivalent CIFS ACL */
+static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
+ struct inode *inode, __u64 nmode)
+{
+ int rc = 0;
+ __u32 dacloffset;
+ __u32 ndacloffset;
+ __u32 sidsoffset;
+ struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
+ struct cifs_acl *dacl_ptr = NULL; /* no need for SACL ptr */
+ struct cifs_acl *ndacl_ptr = NULL; /* no need for SACL ptr */
+
+ if ((inode == NULL) || (pntsd == NULL) || (pnntsd == NULL))
+ return -EIO;
+
+ owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+ le32_to_cpu(pntsd->osidoffset));
+ group_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+ le32_to_cpu(pntsd->gsidoffset));
+
+ dacloffset = le32_to_cpu(pntsd->dacloffset);
+ dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset);
+
+ ndacloffset = sizeof(struct cifs_ntsd);
+ ndacl_ptr = (struct cifs_acl *)((char *)pnntsd + ndacloffset);
+ ndacl_ptr->revision = dacl_ptr->revision;
+ ndacl_ptr->size = 0;
+ ndacl_ptr->num_aces = 0;
+
+ rc = set_chmod_dacl(ndacl_ptr, owner_sid_ptr, group_sid_ptr, nmode);
+
+ sidsoffset = ndacloffset + le16_to_cpu(ndacl_ptr->size);
+
+ /* copy security descriptor control portion and owner and group sid */
+ copy_sec_desc(pntsd, pnntsd, sidsoffset);
+
+ return rc;
+}
+
+
+/* Retrieve an ACL from the server */
+static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode,
+ const char *path, const __u16 *pfid)
+{
+ struct cifsFileInfo *open_file = NULL;
+ bool unlock_file = false;
+ int xid;
+ int rc = -EIO;
+ __u16 fid;
+ struct super_block *sb;
+ struct cifs_sb_info *cifs_sb;
+ struct cifs_ntsd *pntsd = NULL;
+
+ cFYI(1, ("get mode from ACL for %s", path));
+
+ if (inode == NULL)
+ return NULL;
+
+ xid = GetXid();
+ if (pfid == NULL)
+ open_file = find_readable_file(CIFS_I(inode));
+ else
+ fid = *pfid;
+
+ sb = inode->i_sb;
+ if (sb == NULL) {
+ FreeXid(xid);
+ return NULL;
+ }
+ cifs_sb = CIFS_SB(sb);
+
+ if (open_file) {
+ unlock_file = true;
+ fid = open_file->netfid;
+ } else if (pfid == NULL) {
+ int oplock = 0;
+ /* open file */
+ rc = CIFSSMBOpen(xid, cifs_sb->tcon, path, FILE_OPEN,
+ READ_CONTROL, 0, &fid, &oplock, NULL,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc != 0) {
+ cERROR(1, ("Unable to open file to get ACL"));
+ FreeXid(xid);
+ return NULL;
+ }
+ }
+
+ rc = CIFSSMBGetCIFSACL(xid, cifs_sb->tcon, fid, &pntsd, pacllen);
+ cFYI(1, ("GetCIFSACL rc = %d ACL len %d", rc, *pacllen));
+ if (unlock_file == true) /* find_readable_file increments ref count */
+ atomic_dec(&open_file->wrtPending);
+ else if (pfid == NULL) /* if opened above we have to close the handle */
+ CIFSSMBClose(xid, cifs_sb->tcon, fid);
+ /* else handle was passed in by caller */
+
+ FreeXid(xid);
+ return pntsd;
+}
+
+/* Set an ACL on the server */
+static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
+ struct inode *inode, const char *path)
+{
+ struct cifsFileInfo *open_file;
+ bool unlock_file = false;
+ int xid;
+ int rc = -EIO;
+ __u16 fid;
+ struct super_block *sb;
+ struct cifs_sb_info *cifs_sb;
+
+ cFYI(DBG2, ("set ACL for %s from mode 0x%x", path, inode->i_mode));
+
+ if (!inode)
+ return rc;
+
+ sb = inode->i_sb;
+ if (sb == NULL)
+ return rc;
+
+ cifs_sb = CIFS_SB(sb);
+ xid = GetXid();
+
+ open_file = find_readable_file(CIFS_I(inode));
+ if (open_file) {
+ unlock_file = true;
+ fid = open_file->netfid;
+ } else {
+ int oplock = 0;
+ /* open file */
+ rc = CIFSSMBOpen(xid, cifs_sb->tcon, path, FILE_OPEN,
+ WRITE_DAC, 0, &fid, &oplock, NULL,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc != 0) {
+ cERROR(1, ("Unable to open file to set ACL"));
+ FreeXid(xid);
+ return rc;
+ }
+ }
+
+ rc = CIFSSMBSetCIFSACL(xid, cifs_sb->tcon, fid, pnntsd, acllen);
+ cFYI(DBG2, ("SetCIFSACL rc = %d", rc));
+ if (unlock_file)
+ atomic_dec(&open_file->wrtPending);
+ else
+ CIFSSMBClose(xid, cifs_sb->tcon, fid);
+
+ FreeXid(xid);
+
+ return rc;
+}
+
+/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */
+void acl_to_uid_mode(struct inode *inode, const char *path, const __u16 *pfid)
+{
+ struct cifs_ntsd *pntsd = NULL;
+ u32 acllen = 0;
+ int rc = 0;
+
+ cFYI(DBG2, ("converting ACL to mode for %s", path));
+ pntsd = get_cifs_acl(&acllen, inode, path, pfid);
+
+ /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
+ if (pntsd)
+ rc = parse_sec_desc(pntsd, acllen, inode);
+ if (rc)
+ cFYI(1, ("parse sec desc failed rc = %d", rc));
+
+ kfree(pntsd);
+ return;
+}
+
+/* Convert mode bits to an ACL so we can update the ACL on the server */
+int mode_to_acl(struct inode *inode, const char *path, __u64 nmode)
+{
+ int rc = 0;
+ __u32 secdesclen = 0;
+ struct cifs_ntsd *pntsd = NULL; /* acl obtained from server */
+ struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */
+
+ cFYI(DBG2, ("set ACL from mode for %s", path));
+
+ /* Get the security descriptor */
+ pntsd = get_cifs_acl(&secdesclen, inode, path, NULL);
+
+ /* Add three ACEs for owner, group, everyone getting rid of
+ other ACEs as chmod disables ACEs and set the security descriptor */
+
+ if (pntsd) {
+ /* allocate memory for the smb header,
+ set security descriptor request security descriptor
+ parameters, and secuirty descriptor itself */
+
+ secdesclen = secdesclen < DEFSECDESCLEN ?
+ DEFSECDESCLEN : secdesclen;
+ pnntsd = kmalloc(secdesclen, GFP_KERNEL);
+ if (!pnntsd) {
+ cERROR(1, ("Unable to allocate security descriptor"));
+ kfree(pntsd);
+ return -ENOMEM;
+ }
+
+ rc = build_sec_desc(pntsd, pnntsd, inode, nmode);
+
+ cFYI(DBG2, ("build_sec_desc rc: %d", rc));
+
+ if (!rc) {
+ /* Set the security descriptor */
+ rc = set_cifs_acl(pnntsd, secdesclen, inode, path);
+ cFYI(DBG2, ("set_cifs_acl rc: %d", rc));
+ }
+
+ kfree(pnntsd);
+ kfree(pntsd);
+ }
+
+ return rc;
+}
+#endif /* CONFIG_CIFS_EXPERIMENTAL */
diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
index 5eff35d..53040d2 100644
--- a/fs/cifs/cifsacl.h
+++ b/fs/cifs/cifsacl.h
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsacl.h
*
- * Copyright (c) International Business Machines Corp., 2005
+ * Copyright (c) International Business Machines Corp., 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -22,17 +22,63 @@
#ifndef _CIFSACL_H
#define _CIFSACL_H
+
+#define NUM_AUTHS 6 /* number of authority fields */
+#define NUM_SUBAUTHS 5 /* number of sub authority fields */
+#define NUM_WK_SIDS 7 /* number of well known sids */
+#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
+#define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
+
+#define READ_BIT 0x4
+#define WRITE_BIT 0x2
+#define EXEC_BIT 0x1
+
+#define UBITSHIFT 6
+#define GBITSHIFT 3
+
+#define ACCESS_ALLOWED 0
+#define ACCESS_DENIED 1
+
+struct cifs_ntsd {
+ __le16 revision; /* revision level */
+ __le16 type;
+ __le32 osidoffset;
+ __le32 gsidoffset;
+ __le32 sacloffset;
+ __le32 dacloffset;
+} __attribute__((packed));
+
struct cifs_sid {
__u8 revision; /* revision level */
- __u8 num_subauths;
+ __u8 num_subauth;
__u8 authority[6];
- __u32 sub_auth[4];
- /* next sub_auth if any ... */
+ __le32 sub_auth[5]; /* sub_auth[num_subauth] */
} __attribute__((packed));
-/* everyone */
-/* extern const struct cifs_sid sid_everyone;*/
-/* group users */
-/* extern const struct cifs_sid sid_user;*/
+struct cifs_acl {
+ __le16 revision; /* revision level */
+ __le16 size;
+ __le32 num_aces;
+} __attribute__((packed));
+
+struct cifs_ace {
+ __u8 type;
+ __u8 flags;
+ __u16 size;
+ __u32 access_req;
+ struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
+} __attribute__((packed));
+
+struct cifs_wksid {
+ struct cifs_sid cifssid;
+ char sidname[SIDNAMELENGTH];
+} __attribute__((packed));
+
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+
+extern int match_sid(struct cifs_sid *);
+extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
+
+#endif /* CONFIG_CIFS_EXPERIMENTAL */
#endif /* _CIFSACL_H */
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 632070b..83fd40d 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -99,15 +99,16 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
MD5Init(&context);
MD5Update(&context, (char *)&key->data, key->len);
for (i = 0; i < n_vec; i++) {
+ if (iov[i].iov_len == 0)
+ continue;
if (iov[i].iov_base == NULL) {
cERROR(1, ("null iovec entry"));
return -EIO;
- } else if (iov[i].iov_len == 0)
- break; /* bail out if we are sent nothing to sign */
+ }
/* The first entry includes a length field (which does not get
signed that occupies the first 4 bytes before the header */
if (i == 0) {
- if (iov[0].iov_len <= 8 ) /* cmd field at offset 9 */
+ if (iov[0].iov_len <= 8) /* cmd field at offset 9 */
break; /* nothing to sign or corrupt header */
MD5Update(&context, iov[0].iov_base+4,
iov[0].iov_len-4);
@@ -122,7 +123,7 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
- __u32 * pexpected_response_sequence_number)
+ __u32 *pexpected_response_sequence_number)
{
int rc = 0;
char smb_signature[20];
@@ -309,9 +310,8 @@ void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key)
utf8 and other multibyte codepages each need their own strupper
function since a byte at a time will ont work. */
- for (i = 0; i < CIFS_ENCPWD_SIZE; i++) {
+ for (i = 0; i < CIFS_ENCPWD_SIZE; i++)
password_with_pad[i] = toupper(password_with_pad[i]);
- }
SMBencrypt(password_with_pad, ses->server->cryptKey, lnm_session_key);
/* clear password before we return/free memory */
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 4c1c4f3..9eefc83 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsfs.c
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Common Internet FileSystem (CIFS) client
@@ -48,16 +48,15 @@
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
#include <linux/freezer.h>
#endif /* 2.6.19 */
+#include <linux/key.h>
+#include "dns_resolve.h"
+#include "cifs_spnego.h"
#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
#ifdef CONFIG_CIFS_QUOTA
static struct quotactl_ops cifs_quotactl_ops;
#endif /* QUOTA */
-#ifdef CONFIG_CIFS_EXPERIMENTAL
-extern struct export_operations cifs_export_ops;
-#endif /* EXPERIMENTAL */
-
int cifsFYI = 0;
int cifsERROR = 1;
int traceSMB = 0;
@@ -73,7 +72,11 @@ extern struct task_struct *oplockThread; /* remove sparse warning */
struct task_struct *oplockThread = NULL;
/* extern struct task_struct * dnotifyThread; remove sparse warning */
static struct task_struct *dnotifyThread = NULL;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
static const struct super_operations cifs_super_ops;
+#else
+static struct super_operations cifs_super_ops;
+#endif
unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
module_param(CIFSMaxBufSize, int, 0);
MODULE_PARM_DESC(CIFSMaxBufSize, "Network buffer size (not including header). "
@@ -112,6 +115,27 @@ cifs_read_super(struct super_block *sb, void *data,
if (cifs_sb == NULL)
return -ENOMEM;
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ /* copy mount params to sb for use in submounts */
+ /* BB: should we move this after the mount so we
+ * do not have to do the copy on failed mounts?
+ * BB: May be it is better to do simple copy before
+ * complex operation (mount), and in case of fail
+ * just exit instead of doing mount and attempting
+ * undo it if this copy fails?*/
+ if (data) {
+ int len = strlen(data);
+ cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL);
+ if (cifs_sb->mountdata == NULL) {
+ kfree(sb->s_fs_info);
+ sb->s_fs_info = NULL;
+ return -ENOMEM;
+ }
+ strncpy(cifs_sb->mountdata, data, len + 1);
+ cifs_sb->mountdata[len] = '\0';
+ }
+#endif
+
rc = cifs_mount(sb, cifs_sb, data, devname);
if (rc) {
@@ -131,10 +155,11 @@ cifs_read_super(struct super_block *sb, void *data,
#endif
sb->s_blocksize = CIFS_MAX_MSGSIZE;
sb->s_blocksize_bits = 14; /* default 2**14 = CIFS_MAX_MSGSIZE */
- inode = iget(sb, ROOT_I);
+ inode = cifs_iget(sb, ROOT_I);
- if (!inode) {
- rc = -ENOMEM;
+ if (IS_ERR(inode)) {
+ rc = PTR_ERR(inode);
+ inode = NULL;
goto out_no_root;
}
@@ -159,8 +184,16 @@ out_no_root:
if (inode)
iput(inode);
+ cifs_umount(sb, cifs_sb);
+
out_mount_failed:
if (cifs_sb) {
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ if (cifs_sb->mountdata) {
+ kfree(cifs_sb->mountdata);
+ cifs_sb->mountdata = NULL;
+ }
+#endif
if (cifs_sb->local_nls)
unload_nls(cifs_sb->local_nls);
kfree(cifs_sb);
@@ -181,9 +214,15 @@ cifs_put_super(struct super_block *sb)
return;
}
rc = cifs_umount(sb, cifs_sb);
- if (rc) {
+ if (rc)
cERROR(1, ("cifs_umount failed with return code %d", rc));
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ if (cifs_sb->mountdata) {
+ kfree(cifs_sb->mountdata);
+ cifs_sb->mountdata = NULL;
}
+#endif
+
unload_nls(cifs_sb->local_nls);
kfree(cifs_sb);
return;
@@ -217,50 +256,50 @@ static int
cifs_statfs(struct super_block *sb, struct kstatfs *buf)
{
#endif
- int xid;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifsTconInfo *tcon = cifs_sb->tcon;
int rc = -EOPNOTSUPP;
- struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
+ int xid;
xid = GetXid();
- cifs_sb = CIFS_SB(sb);
- pTcon = cifs_sb->tcon;
-
buf->f_type = CIFS_MAGIC_NUMBER;
- /* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */
- buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would
- presumably be total path, but note
- that some servers (includinng Samba 3)
- have a shorter maximum path */
+ /*
+ * PATH_MAX may be too long - it would presumably be total path,
+ * but note that some servers (includinng Samba 3) have a shorter
+ * maximum path.
+ *
+ * Instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO.
+ */
+ buf->f_namelen = PATH_MAX;
buf->f_files = 0; /* undefined */
buf->f_ffree = 0; /* unlimited */
-/* BB we could add a second check for a QFS Unix capability bit */
-/* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */
- if ((pTcon->ses->capabilities & CAP_UNIX) && (CIFS_POSIX_EXTENSIONS &
- le64_to_cpu(pTcon->fsUnixInfo.Capability)))
- rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf);
-
- /* Only need to call the old QFSInfo if failed
- on newer one */
- if (rc)
- if (pTcon->ses->capabilities & CAP_NT_SMBS)
- rc = CIFSSMBQFSInfo(xid, pTcon, buf); /* not supported by OS2 */
-
- /* Some old Windows servers also do not support level 103, retry with
- older level one if old server failed the previous call or we
- bypassed it because we detected that this was an older LANMAN sess */
+ /*
+ * We could add a second check for a QFS Unix capability bit
+ */
+ if ((tcon->ses->capabilities & CAP_UNIX) &&
+ (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
+ rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);
+
+ /*
+ * Only need to call the old QFSInfo if failed on newer one,
+ * e.g. by OS/2.
+ **/
+ if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
+ rc = CIFSSMBQFSInfo(xid, tcon, buf);
+
+ /*
+ * Some old Windows servers also do not support level 103, retry with
+ * older level one if old server failed the previous call or we
+ * bypassed it because we detected that this was an older LANMAN sess
+ */
if (rc)
- rc = SMBOldQFSInfo(xid, pTcon, buf);
- /* int f_type;
- __fsid_t f_fsid;
- int f_namelen; */
- /* BB get from info in tcon struct at mount time call to QFSAttrInfo */
+ rc = SMBOldQFSInfo(xid, tcon, buf);
+
FreeXid(xid);
- return 0; /* always return success? what if volume is no
- longer available? */
+ return 0;
}
static int cifs_permission(struct inode *inode, int mask, struct nameidata *nd)
@@ -305,8 +344,8 @@ cifs_alloc_inode(struct super_block *sb)
/* Until the file is open and we have gotten oplock
info back from the server, can not assume caching of
file data or metadata */
- cifs_inode->clientCanCacheRead = FALSE;
- cifs_inode->clientCanCacheAll = FALSE;
+ cifs_inode->clientCanCacheRead = false;
+ cifs_inode->clientCanCacheAll = false;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
cifs_inode->vfs_inode.i_blksize = CIFS_MAX_MSGSIZE;
#endif
@@ -349,15 +388,47 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
seq_printf(s, ",domain=%s",
cifs_sb->tcon->ses->domainName);
}
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) ||
+ !(cifs_sb->tcon->unix_ext))
+ seq_printf(s, ",uid=%d", cifs_sb->mnt_uid);
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) ||
+ !(cifs_sb->tcon->unix_ext))
+ seq_printf(s, ",gid=%d", cifs_sb->mnt_gid);
+ if (!cifs_sb->tcon->unix_ext) {
+ seq_printf(s, ",file_mode=0%o,dir_mode=0%o",
+ cifs_sb->mnt_file_mode,
+ cifs_sb->mnt_dir_mode);
+ }
+ if (cifs_sb->tcon->seal)
+ seq_printf(s, ",seal");
+ if (cifs_sb->tcon->nocase)
+ seq_printf(s, ",nocase");
+ if (cifs_sb->tcon->retry)
+ seq_printf(s, ",hard");
}
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
seq_printf(s, ",posixpaths");
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) ||
- !(cifs_sb->tcon->unix_ext))
- seq_printf(s, ",uid=%d", cifs_sb->mnt_uid);
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) ||
- !(cifs_sb->tcon->unix_ext))
- seq_printf(s, ",gid=%d", cifs_sb->mnt_gid);
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
+ seq_printf(s, ",setuids");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ seq_printf(s, ",serverino");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
+ seq_printf(s, ",directio");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ seq_printf(s, ",nouser_xattr");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ seq_printf(s, ",mapchars");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
+ seq_printf(s, ",sfu");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ seq_printf(s, ",nobrl");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+ seq_printf(s, ",cifsacl");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
+ seq_printf(s, ",dynperm");
+ if (m->mnt_sb->s_flags & MS_POSIXACL)
+ seq_printf(s, ",acl");
+
seq_printf(s, ",rsize=%d", cifs_sb->rsize);
seq_printf(s, ",wsize=%d", cifs_sb->wsize);
}
@@ -462,7 +533,7 @@ int cifs_xstate_get(struct super_block *sb, struct fs_quota_stat *qstats)
static struct quotactl_ops cifs_quotactl_ops = {
.set_xquota = cifs_xquota_set,
- .get_xquota = cifs_xquota_set,
+ .get_xquota = cifs_xquota_get,
.set_xstate = cifs_xstate_set,
.get_xstate = cifs_xstate_get,
};
@@ -477,6 +548,8 @@ static void cifs_umount_begin(struct super_block * sblock)
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *tcon;
+ dfs_shrink_umount_helper(vfsmnt);
+
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 16)
if (!(flags & MNT_FORCE))
return;
@@ -527,8 +600,11 @@ static int cifs_remount(struct super_block *sb, int *flags, char *data)
return 0;
}
-static const struct super_operations cifs_super_ops = {
- .read_inode = cifs_read_inode,
+static
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct super_operations cifs_super_ops = {
.put_super = cifs_put_super,
.statfs = cifs_statfs,
.alloc_inode = cifs_alloc_inode,
@@ -652,14 +728,18 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
return remote_llseek(file, offset, origin);
}
-static struct file_system_type cifs_fs_type = {
+struct file_system_type cifs_fs_type = {
.owner = THIS_MODULE,
.name = "cifs",
.get_sb = cifs_get_sb,
.kill_sb = kill_anon_super,
/* .fs_flags */
};
-const struct inode_operations cifs_dir_inode_ops = {
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct inode_operations cifs_dir_inode_ops = {
.create = cifs_create,
.lookup = cifs_lookup,
.getattr = cifs_getattr,
@@ -681,7 +761,10 @@ const struct inode_operations cifs_dir_inode_ops = {
#endif
};
-const struct inode_operations cifs_file_inode_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct inode_operations cifs_file_inode_ops = {
/* revalidate:cifs_revalidate, */
.setattr = cifs_setattr,
.getattr = cifs_getattr, /* do we need this anymore? */
@@ -695,7 +778,10 @@ const struct inode_operations cifs_file_inode_ops = {
#endif
};
-const struct inode_operations cifs_symlink_inode_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct inode_operations cifs_symlink_inode_ops = {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
.readlink = cifs_readlink,
#else
@@ -715,7 +801,10 @@ const struct inode_operations cifs_symlink_inode_ops = {
#endif
};
-const struct file_operations cifs_file_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct file_operations cifs_file_ops = {
.read = do_sync_read,
.write = do_sync_write,
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
@@ -745,7 +834,10 @@ const struct file_operations cifs_file_ops = {
#endif /* CONFIG_CIFS_EXPERIMENTAL */
};
-const struct file_operations cifs_file_direct_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct file_operations cifs_file_direct_ops = {
/* no mmap, no aio, no readv -
BB reevaluate whether they can be done with directio, no cache */
.read = cifs_user_read,
@@ -768,7 +860,10 @@ const struct file_operations cifs_file_direct_ops = {
.dir_notify = cifs_dir_notify,
#endif /* CONFIG_CIFS_EXPERIMENTAL */
};
-const struct file_operations cifs_file_nobrl_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct file_operations cifs_file_nobrl_ops = {
.read = do_sync_read,
.write = do_sync_write,
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
@@ -797,7 +892,10 @@ const struct file_operations cifs_file_nobrl_ops = {
#endif /* CONFIG_CIFS_EXPERIMENTAL */
};
-const struct file_operations cifs_file_direct_nobrl_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct file_operations cifs_file_direct_nobrl_ops = {
/* no mmap, no aio, no readv -
BB reevaluate whether they can be done with directio, no cache */
.read = cifs_user_read,
@@ -820,7 +918,10 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
#endif /* CONFIG_CIFS_EXPERIMENTAL */
};
-const struct file_operations cifs_dir_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct file_operations cifs_dir_ops = {
.readdir = cifs_readdir,
.release = cifs_closedir,
.read = generic_read_dir,
@@ -1023,36 +1124,34 @@ static int cifs_oplock_thread(void *dummyarg)
schedule_timeout(39*HZ);
} else {
oplock_item = list_entry(GlobalOplock_Q.next,
- struct oplock_q_entry, qhead);
- if (oplock_item) {
- cFYI(1, ("found oplock item to write out"));
- pTcon = oplock_item->tcon;
- inode = oplock_item->pinode;
- netfid = oplock_item->netfid;
- spin_unlock(&GlobalMid_Lock);
- DeleteOplockQEntry(oplock_item);
- /* can not grab inode sem here since it would
+ struct oplock_q_entry, qhead);
+ cFYI(1, ("found oplock item to write out"));
+ pTcon = oplock_item->tcon;
+ inode = oplock_item->pinode;
+ netfid = oplock_item->netfid;
+ spin_unlock(&GlobalMid_Lock);
+ DeleteOplockQEntry(oplock_item);
+ /* can not grab inode sem here since it would
deadlock when oplock received on delete
since vfs_unlink holds the i_mutex across
the call */
- /* mutex_lock(&inode->i_mutex);*/
- if (S_ISREG(inode->i_mode)) {
- rc =
- filemap_fdatawrite(inode->i_mapping);
- if (CIFS_I(inode)->clientCanCacheRead
- == 0) {
- waitrc = filemap_fdatawait(inode->i_mapping);
- invalidate_remote_inode(inode);
- }
- if (rc == 0)
- rc = waitrc;
- } else
- rc = 0;
- /* mutex_unlock(&inode->i_mutex);*/
- if (rc)
- CIFS_I(inode)->write_behind_rc = rc;
- cFYI(1, ("Oplock flush inode %p rc %d",
- inode, rc));
+ /* mutex_lock(&inode->i_mutex);*/
+ if (S_ISREG(inode->i_mode)) {
+ rc = filemap_fdatawrite(inode->i_mapping);
+ if (CIFS_I(inode)->clientCanCacheRead == 0) {
+ waitrc = filemap_fdatawait(
+ inode->i_mapping);
+ invalidate_remote_inode(inode);
+ }
+ if (rc == 0)
+ rc = waitrc;
+ } else
+ rc = 0;
+ /* mutex_unlock(&inode->i_mutex);*/
+ if (rc)
+ CIFS_I(inode)->write_behind_rc = rc;
+ cFYI(1, ("Oplock flush inode %p rc %d",
+ inode, rc));
/* releasing stale oplock after recent reconnect
of smb session using a now incorrect file
@@ -1060,15 +1159,13 @@ static int cifs_oplock_thread(void *dummyarg)
not bother sending an oplock release if session
to server still is disconnected since oplock
already released by the server in that case */
- if (pTcon->tidStatus != CifsNeedReconnect) {
- rc = CIFSSMBLock(0, pTcon, netfid,
- 0 /* len */ , 0 /* offset */, 0,
- 0, LOCKING_ANDX_OPLOCK_RELEASE,
- 0 /* wait flag */);
- cFYI(1, ("Oplock release rc = %d", rc));
- }
- } else
- spin_unlock(&GlobalMid_Lock);
+ if (pTcon->tidStatus != CifsNeedReconnect) {
+ rc = CIFSSMBLock(0, pTcon, netfid,
+ 0 /* len */ , 0 /* offset */, 0,
+ 0, LOCKING_ANDX_OPLOCK_RELEASE,
+ false /* wait flag */);
+ cFYI(1, ("Oplock release rc = %d", rc));
+ }
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(1); /* yield in case q were corrupt */
}
@@ -1096,8 +1193,7 @@ static int cifs_dnotify_thread(void *dummyarg)
list_for_each(tmp, &GlobalSMBSessionList) {
ses = list_entry(tmp, struct cifsSesInfo,
cifsSessionList);
- if (ses && ses->server &&
- atomic_read(&ses->server->inFlight))
+ if (ses->server && atomic_read(&ses->server->inFlight))
wake_up_all(&ses->server->response_q);
}
read_unlock(&GlobalSMBSeslock);
@@ -1110,9 +1206,7 @@ static int __init
init_cifs(void)
{
int rc = 0;
-#ifdef CONFIG_PROC_FS
cifs_proc_init();
-#endif
/* INIT_LIST_HEAD(&GlobalServerList);*/ /* BB not implemented yet */
INIT_LIST_HEAD(&GlobalSMBSessionList);
INIT_LIST_HEAD(&GlobalTreeConnectionList);
@@ -1168,12 +1262,21 @@ init_cifs(void)
rc = register_filesystem(&cifs_fs_type);
if (rc)
goto out_destroy_request_bufs;
-
+#ifdef CONFIG_CIFS_UPCALL
+ rc = register_key_type(&cifs_spnego_key_type);
+ if (rc)
+ goto out_unregister_filesystem;
+#endif
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ rc = register_key_type(&key_type_dns_resolver);
+ if (rc)
+ goto out_unregister_key_type;
+#endif
oplockThread = kthread_run(cifs_oplock_thread, NULL, "cifsoplockd");
if (IS_ERR(oplockThread)) {
rc = PTR_ERR(oplockThread);
cERROR(1, ("error %d create oplock thread", rc));
- goto out_unregister_filesystem;
+ goto out_unregister_dfs_key_type;
}
dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd");
@@ -1187,7 +1290,15 @@ init_cifs(void)
out_stop_oplock_thread:
kthread_stop(oplockThread);
+ out_unregister_dfs_key_type:
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ unregister_key_type(&key_type_dns_resolver);
+ out_unregister_key_type:
+#endif
+#ifdef CONFIG_CIFS_UPCALL
+ unregister_key_type(&cifs_spnego_key_type);
out_unregister_filesystem:
+#endif
unregister_filesystem(&cifs_fs_type);
out_destroy_request_bufs:
cifs_destroy_request_bufs();
@@ -1196,18 +1307,21 @@ init_cifs(void)
out_destroy_inodecache:
cifs_destroy_inodecache();
out_clean_proc:
-#ifdef CONFIG_PROC_FS
cifs_proc_clean();
-#endif
return rc;
}
static void __exit
exit_cifs(void)
{
- cFYI(0, ("exit_cifs"));
-#ifdef CONFIG_PROC_FS
+ cFYI(DBG2, ("exit_cifs"));
cifs_proc_clean();
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ cifs_dfs_release_automount_timer();
+ unregister_key_type(&key_type_dns_resolver);
+#endif
+#ifdef CONFIG_CIFS_UPCALL
+ unregister_key_type(&cifs_spnego_key_type);
#endif
unregister_filesystem(&cifs_fs_type);
cifs_destroy_inodecache();
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 25bf891..cfd5bf9 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsfs.h
*
- * Copyright (c) International Business Machines Corp., 2002, 2005
+ * Copyright (c) International Business Machines Corp., 2002, 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -24,14 +24,6 @@
#define ROOT_I 2
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
#define current_fs_time(arg) CURRENT_TIME
@@ -61,8 +53,14 @@ static inline void i_size_write(struct inode *inode, loff_t size)
#endif
#endif
+extern struct file_system_type cifs_fs_type;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
extern const struct address_space_operations cifs_addr_ops;
extern const struct address_space_operations cifs_addr_ops_smallbuf;
+#else
+extern struct address_space_operations cifs_addr_ops;
+extern struct address_space_operations cifs_addr_ops_smallbuf;
+#endif
/* Functions related to super block operations */
/* extern const struct super_operations cifs_super_ops;*/
@@ -71,8 +69,13 @@ extern void cifs_read_inode(struct inode *);
/* extern void cifs_write_inode(struct inode *); */ /* BB not needed yet */
/* Functions related to inodes */
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
extern const struct inode_operations cifs_dir_inode_ops;
+#else
+extern struct inode_operations cifs_dir_inode_ops;
+#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
+extern struct inode *cifs_iget(struct super_block *, unsigned long);
extern int cifs_create(struct inode *, struct dentry *, int,
struct nameidata *);
extern struct dentry * cifs_lookup(struct inode *, struct dentry *,
@@ -93,14 +96,27 @@ extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
extern int cifs_revalidate(struct dentry *);
extern int cifs_setattr(struct dentry *, struct iattr *);
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
extern const struct inode_operations cifs_file_inode_ops;
extern const struct inode_operations cifs_symlink_inode_ops;
+#else
+extern struct inode_operations cifs_file_inode_ops;
+extern struct inode_operations cifs_symlink_inode_ops;
+#endif
+extern struct inode_operations cifs_dfs_referral_inode_operations;
/* Functions related to files and directories */
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
extern const struct file_operations cifs_file_ops;
extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
extern const struct file_operations cifs_file_nobrl_ops;
extern const struct file_operations cifs_file_direct_nobrl_ops; /* no brlocks */
+#else
+extern struct file_operations cifs_file_ops;
+extern struct file_operations cifs_file_direct_ops; /* if directio mnt */
+extern struct file_operations cifs_file_nobrl_ops;
+extern struct file_operations cifs_file_direct_nobrl_ops; /* no brlocks */
+#endif
extern int cifs_open(struct inode *inode, struct file *file);
extern int cifs_close(struct inode *inode, struct file *file);
extern int cifs_closedir(struct inode *inode, struct file *file);
@@ -116,7 +132,11 @@ extern int cifs_flush(struct file *, fl_owner_t id);
extern int cifs_flush(struct file *);
#endif /* 2.6.17 */
extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
extern const struct file_operations cifs_dir_ops;
+#else
+extern struct file_operations cifs_dir_ops;
+#endif
extern int cifs_dir_open(struct inode *inode, struct file *file);
extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
extern int cifs_dir_notify(struct file *, unsigned long arg);
@@ -145,5 +165,10 @@ extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
extern int cifs_ioctl(struct inode *inode, struct file *filep,
unsigned int command, unsigned long arg);
-#define CIFS_VERSION "1.50cRH"
+
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+extern struct export_operations cifs_export_ops;
+#endif /* EXPERIMENTAL */
+
+#define CIFS_VERSION "1.54RH"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index aa250a6..09b3bc3 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsglob.h
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
* Jeremy Allison (jra@samba.org)
*
@@ -20,6 +20,7 @@
#include <linux/in6.h>
#include <linux/version.h>
#include "cifs_fs_sb.h"
+#include "cifsacl.h"
/*
* The sizes of various internal tables and strings
*/
@@ -27,7 +28,7 @@
#define MAX_SES_INFO 2
#define MAX_TCON_INFO 4
-#define MAX_TREE_SIZE 2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1
+#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1)
#define MAX_SERVER_SIZE 15
#define MAX_SHARE_SIZE 64 /* used to be 20, this should still be enough */
#define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null
@@ -57,14 +58,6 @@
#include "cifspdu.h"
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-
#ifndef XATTR_DOS_ATTRIB
#define XATTR_DOS_ATTRIB "user.DOSATTRIB"
#endif
@@ -78,14 +71,6 @@
#endif
/*
- * This information is kept on every Server we know about.
- *
- * Some things to note:
- *
- */
-#define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1)
-
-/*
* CIFS vfs client Status information (based on what we know.)
*/
@@ -104,7 +89,8 @@ enum securityEnum {
NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */
RawNTLMSSP, /* NTLMSSP without SPNEGO */
NTLMSSP, /* NTLMSSP via SPNEGO */
- Kerberos /* Kerberos via SPNEGO */
+ Kerberos, /* Kerberos via SPNEGO */
+ MSKerberos, /* MS Kerberos via SPNEGO */
};
enum protocolEnum {
@@ -118,6 +104,7 @@ struct mac_key {
unsigned int len;
union {
char ntlm[CIFS_SESS_KEY_SIZE + 16];
+ char krb5[CIFS_SESS_KEY_SIZE + 16]; /* BB: length correct? */
struct {
char key[16];
struct ntlmv2_resp resp;
@@ -125,6 +112,17 @@ struct mac_key {
} data;
};
+struct cifs_cred {
+ int uid;
+ int gid;
+ int mode;
+ int cecount;
+ struct cifs_sid osid;
+ struct cifs_sid gsid;
+ struct cifs_ntace *ntaces;
+ struct cifs_ace *aces;
+};
+
/*
*****************************************************************
* Except the CIFS PDUs themselves all the
@@ -136,6 +134,7 @@ struct TCP_Server_Info {
/* 15 character server name + 0x20 16th byte indicating type = srv */
char server_RFC1001_name[SERVER_NAME_LEN_WITH_NULL];
char unicode_server_Name[SERVER_NAME_LEN_WITH_NULL * 2];
+ char *hostname; /* hostname portion of UNC string */
struct socket *ssocket;
union {
struct sockaddr_in sockAddr;
@@ -150,7 +149,7 @@ struct TCP_Server_Info {
enum protocolEnum protocolType;
char versionMajor;
char versionMinor;
- unsigned svlocal:1; /* local server or remote */
+ bool svlocal:1; /* local server or remote */
atomic_t socketUseCount; /* number of open cifs sessions on socket */
atomic_t inFlight; /* number of requests on the wire to server */
#ifdef CONFIG_CIFS_STATS2
@@ -289,9 +288,11 @@ struct cifsTconInfo {
FILE_SYSTEM_DEVICE_INFO fsDevInfo;
FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */
FILE_SYSTEM_UNIX_INFO fsUnixInfo;
- unsigned retry:1;
- unsigned nocase:1;
- unsigned unix_ext:1; /* if off disable Linux extensions to CIFS protocol
+ bool ipc:1; /* set if connection to IPC$ eg for RPC/PIPES */
+ bool retry:1;
+ bool nocase:1;
+ bool seal:1; /* transport encryption for this mounted share */
+ bool unix_ext:1; /* if false disable Linux extensions to CIFS protocol
for this mount even if server would support */
/* BB add field for back pointer to sb struct(s)? */
};
@@ -319,10 +320,10 @@ struct cifs_search_info {
char *srch_entries_start;
char *presume_name;
unsigned int resume_name_len;
- unsigned endOfSearch:1;
- unsigned emptyDir:1;
- unsigned unicode:1;
- unsigned smallBuf:1; /* so we know which buf_release function to call */
+ bool endOfSearch:1;
+ bool emptyDir:1;
+ bool unicode:1;
+ bool smallBuf:1; /* so we know which buf_release function to call */
};
struct cifsFileInfo {
@@ -341,11 +342,11 @@ struct cifsFileInfo {
struct semaphore lock_mutex;
#endif
struct list_head llist; /* list of byte range locks we have. */
- unsigned closePend:1; /* file is marked to close */
- unsigned invalidHandle:1; /* file closed via session abend */
+ bool closePend:1; /* file is marked to close */
+ bool invalidHandle:1; /* file closed via session abend */
+ bool messageMode:1; /* for pipes: message vs byte mode */
atomic_t wrtPending; /* handle in use - defer close */
struct semaphore fh_sem; /* prevents reopen race after dead ses*/
- char *search_resume_name; /* BB removeme BB */
struct cifs_search_info srch_inf;
};
@@ -361,9 +362,9 @@ struct cifsInodeInfo {
__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
atomic_t inUse; /* num concurrent users (local openers cifs) of file*/
unsigned long time; /* jiffies of last update/check of inode */
- unsigned clientCanCacheRead:1; /* read oplock */
- unsigned clientCanCacheAll:1; /* read and writebehind oplock */
- unsigned oplockPending:1;
+ bool clientCanCacheRead:1; /* read oplock */
+ bool clientCanCacheAll:1; /* read and writebehind oplock */
+ bool oplockPending:1;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
struct inode vfs_inode;
#endif
@@ -449,9 +450,9 @@ struct mid_q_entry {
struct smb_hdr *resp_buf; /* response buffer */
int midState; /* wish this were enum but can not pass to wait_event */
__u8 command; /* smb command code */
- unsigned largeBuf:1; /* if valid response, is pointer to large buf */
- unsigned multiRsp:1; /* multiple trans2 responses for one request */
- unsigned multiEnd:1; /* both received */
+ bool largeBuf:1; /* if valid response, is pointer to large buf */
+ bool multiRsp:1; /* multiple trans2 responses for one request */
+ bool multiEnd:1; /* both received */
};
struct oplock_q_entry {
@@ -475,6 +476,37 @@ struct dir_notify_req {
struct file *pfile;
};
+struct dfs_info3_param {
+ int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/
+ int path_consumed;
+ int server_type;
+ int ref_flag;
+ char *path_name;
+ char *node_name;
+};
+
+static inline void free_dfs_info_param(struct dfs_info3_param *param)
+{
+ if (param) {
+ kfree(param->path_name);
+ kfree(param->node_name);
+ kfree(param);
+ }
+}
+
+static inline void free_dfs_info_array(struct dfs_info3_param *param,
+ int number_of_items)
+{
+ int i;
+ if ((number_of_items == 0) || (param == NULL))
+ return;
+ for (i = 0; i < number_of_items; i++) {
+ kfree(param[i].path_name);
+ kfree(param[i].node_name);
+ }
+ kfree(param);
+}
+
#define MID_FREE 0
#define MID_REQUEST_ALLOCATED 1
#define MID_REQUEST_SUBMITTED 2
@@ -507,6 +539,9 @@ struct dir_notify_req {
#ifdef CONFIG_CIFS_WEAK_PW_HASH
#define CIFSSEC_MAY_LANMAN 0x00010
#define CIFSSEC_MAY_PLNTXT 0x00020
+#else
+#define CIFSSEC_MAY_LANMAN 0
+#define CIFSSEC_MAY_PLNTXT 0
#endif /* weak passwords */
#define CIFSSEC_MAY_SEAL 0x00040 /* not supported yet */
@@ -520,14 +555,22 @@ require use of the stronger protocol */
#ifdef CONFIG_CIFS_WEAK_PW_HASH
#define CIFSSEC_MUST_LANMAN 0x10010
#define CIFSSEC_MUST_PLNTXT 0x20020
+#ifdef CONFIG_CIFS_UPCALL
+#define CIFSSEC_MASK 0x3F03F /* allows weak security but also krb5 */
+#else
#define CIFSSEC_MASK 0x37037 /* current flags supported if weak */
+#endif /* UPCALL */
+#else /* do not allow weak pw hash */
+#ifdef CONFIG_CIFS_UPCALL
+#define CIFSSEC_MASK 0x0F00F /* flags supported if no weak allowed */
#else
-#define CIFSSEC_MASK 0x07007 /* flags supported if no weak config */
+#define CIFSSEC_MASK 0x07007 /* flags supported if no weak allowed */
+#endif /* UPCALL */
#endif /* WEAK_PW_HASH */
#define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */
-#define CIFSSEC_DEF CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2
-#define CIFSSEC_MAX CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2
+#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2)
+#define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2)
#define CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_LANMAN | CIFSSEC_MAY_PLNTXT | CIFSSEC_MAY_KRB5)
/*
*****************************************************************
@@ -614,7 +657,7 @@ GLOBAL_EXTERN atomic_t tcpSesAllocCount;
GLOBAL_EXTERN atomic_t tcpSesReconnectCount;
GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
-/* Various Debug counters to remove someday (BB) */
+/* Various Debug counters */
GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
#ifdef CONFIG_CIFS_STATS2
GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index d2010e6..a05244a 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifspdu.h
*
- * Copyright (c) International Business Machines Corp., 2002,2007
+ * Copyright (c) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -31,7 +31,7 @@
#else
#define CIFS_PROT 0
#endif
-#define POSIX_PROT CIFS_PROT+1
+#define POSIX_PROT (CIFS_PROT+1)
#define BAD_PROT 0xFFFF
/* SMB command codes */
@@ -79,6 +79,19 @@
#define TRANS2_GET_DFS_REFERRAL 0x10
#define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
+/* SMB Transact (Named Pipe) subcommand codes */
+#define TRANS_SET_NMPIPE_STATE 0x0001
+#define TRANS_RAW_READ_NMPIPE 0x0011
+#define TRANS_QUERY_NMPIPE_STATE 0x0021
+#define TRANS_QUERY_NMPIPE_INFO 0x0022
+#define TRANS_PEEK_NMPIPE 0x0023
+#define TRANS_TRANSACT_NMPIPE 0x0026
+#define TRANS_RAW_WRITE_NMPIPE 0x0031
+#define TRANS_READ_NMPIPE 0x0036
+#define TRANS_WRITE_NMPIPE 0x0037
+#define TRANS_WAIT_NMPIPE 0x0053
+#define TRANS_CALL_NMPIPE 0x0054
+
/* NT Transact subcommand codes */
#define NT_TRANSACT_CREATE 0x01
#define NT_TRANSACT_IOCTL 0x02
@@ -172,7 +185,10 @@
path names in response */
#define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
#define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
+#define SMBFLG2_COMPRESSED (8)
+#define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
#define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
+#define SMBFLG2_REPARSE_PATH (0x400)
#define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
#define SMBFLG2_DFS cpu_to_le16(0x1000)
#define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
@@ -224,12 +240,38 @@
/* file_execute, file_read_attributes*/
/* write_dac, and delete. */
+#define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
+#define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
+ | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
+#define FILE_EXEC_RIGHTS (FILE_EXECUTE)
+
+#define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
+ | FILE_READ_ATTRIBUTES \
+ | FILE_WRITE_ATTRIBUTES \
+ | DELETE | READ_CONTROL | WRITE_DAC \
+ | WRITE_OWNER | SYNCHRONIZE)
+#define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
+ | FILE_READ_EA | FILE_WRITE_EA \
+ | FILE_DELETE_CHILD | FILE_READ_ATTRIBUTES \
+ | FILE_WRITE_ATTRIBUTES \
+ | DELETE | READ_CONTROL | WRITE_DAC \
+ | WRITE_OWNER | SYNCHRONIZE)
+#define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
+ | FILE_READ_ATTRIBUTES \
+ | FILE_WRITE_ATTRIBUTES \
+ | DELETE | READ_CONTROL | WRITE_DAC \
+ | WRITE_OWNER | SYNCHRONIZE)
+
+#define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
+ | READ_CONTROL | SYNCHRONIZE)
+
+
/*
* Invalid readdir handle
*/
#define CIFS_NO_HANDLE 0xFFFF
-#define NO_CHANGE_64 cpu_to_le64(0xFFFFFFFFFFFFFFFFULL)
+#define NO_CHANGE_64 0xFFFFFFFFFFFFFFFFULL
#define NO_CHANGE_32 0xFFFFFFFFUL
/* IPC$ in ASCII */
@@ -288,7 +330,7 @@
#define FILE_SHARE_DELETE 0x00000004
#define FILE_SHARE_ALL 0x00000007
-/* CreateDisposition flags */
+/* CreateDisposition flags, similar to CreateAction as well */
#define FILE_SUPERSEDE 0x00000000
#define FILE_OPEN 0x00000001
#define FILE_CREATE 0x00000002
@@ -300,16 +342,28 @@
#define CREATE_NOT_FILE 0x00000001 /* if set must not be file */
#define CREATE_WRITE_THROUGH 0x00000002
#define CREATE_SEQUENTIAL 0x00000004
-#define CREATE_SYNC_ALERT 0x00000010
-#define CREATE_ASYNC_ALERT 0x00000020
+#define CREATE_NO_BUFFER 0x00000008 /* should not buffer on srv */
+#define CREATE_SYNC_ALERT 0x00000010 /* MBZ */
+#define CREATE_ASYNC_ALERT 0x00000020 /* MBZ */
#define CREATE_NOT_DIR 0x00000040 /* if set must not be directory */
+#define CREATE_TREE_CONNECTION 0x00000080 /* should be zero */
+#define CREATE_COMPLETE_IF_OPLK 0x00000100 /* should be zero */
#define CREATE_NO_EA_KNOWLEDGE 0x00000200
-#define CREATE_EIGHT_DOT_THREE 0x00000400
+#define CREATE_EIGHT_DOT_THREE 0x00000400 /* doc says this is obsolete
+ "open for recovery" flag should
+ be zero in any case */
+#define CREATE_OPEN_FOR_RECOVERY 0x00000400
#define CREATE_RANDOM_ACCESS 0x00000800
#define CREATE_DELETE_ON_CLOSE 0x00001000
#define CREATE_OPEN_BY_ID 0x00002000
+#define CREATE_OPEN_BACKUP_INTENT 0x00004000
+#define CREATE_NO_COMPRESSION 0x00008000
+#define CREATE_RESERVE_OPFILTER 0x00100000 /* should be zero */
#define OPEN_REPARSE_POINT 0x00200000
+#define OPEN_NO_RECALL 0x00400000
+#define OPEN_FREE_SPACE_QUERY 0x00800000 /* should be zero */
#define CREATE_OPTIONS_MASK 0x007FFFFF
+#define CREATE_OPTION_READONLY 0x10000000
#define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */
/* ImpersonationLevel flags */
@@ -369,8 +423,8 @@ struct smb_hdr {
__u8 WordCount;
} __attribute__((packed));
/* given a pointer to an smb_hdr retrieve the value of byte count */
-#define BCC(smb_var) ( *(__u16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
-#define BCC_LE(smb_var) ( *(__le16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
+#define BCC(smb_var) (*(__u16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
+#define BCC_LE(smb_var) (*(__le16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount)))
/* given a pointer to an smb_hdr retrieve the pointer to the byte area */
#define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2 * smb_var->WordCount) + 2)
@@ -453,7 +507,7 @@ typedef struct lanman_neg_rsp {
typedef struct negotiate_rsp {
struct smb_hdr hdr; /* wct = 17 */
- __le16 DialectIndex;
+ __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
__u8 SecurityMode;
__le16 MaxMpxCount;
__le16 MaxNumberVcs;
@@ -499,10 +553,11 @@ typedef struct negotiate_rsp {
#define CAP_INFOLEVEL_PASSTHRU 0x00002000
#define CAP_LARGE_READ_X 0x00004000
#define CAP_LARGE_WRITE_X 0x00008000
+#define CAP_LWIO 0x00010000 /* support fctl_srv_req_resume_key */
#define CAP_UNIX 0x00800000
-#define CAP_RESERVED 0x02000000
-#define CAP_BULK_TRANSFER 0x20000000
-#define CAP_COMPRESSED_DATA 0x40000000
+#define CAP_COMPRESSED_DATA 0x02000000
+#define CAP_DYNAMIC_REAUTH 0x20000000
+#define CAP_PERSISTENT_HANDLES 0x40000000
#define CAP_EXTENDED_SECURITY 0x80000000
typedef union smb_com_session_setup_andx {
@@ -651,9 +706,7 @@ typedef struct smb_com_tconx_req {
} __attribute__((packed)) TCONX_REQ;
typedef struct smb_com_tconx_rsp {
- struct smb_hdr hdr; /* wct = 3 note that Win2000 has sent wct = 7
- in some cases on responses. Four unspecified
- words followed OptionalSupport */
+ struct smb_hdr hdr; /* wct = 3 , not extended response */
__u8 AndXCommand;
__u8 AndXReserved;
__le16 AndXOffset;
@@ -663,13 +716,47 @@ typedef struct smb_com_tconx_rsp {
/* STRING NativeFileSystem */
} __attribute__((packed)) TCONX_RSP;
+typedef struct smb_com_tconx_rsp_ext {
+ struct smb_hdr hdr; /* wct = 7, extended response */
+ __u8 AndXCommand;
+ __u8 AndXReserved;
+ __le16 AndXOffset;
+ __le16 OptionalSupport; /* see below */
+ __le32 MaximalShareAccessRights;
+ __le32 GuestMaximalShareAccessRights;
+ __u16 ByteCount;
+ unsigned char Service[1]; /* always ASCII, not Unicode */
+ /* STRING NativeFileSystem */
+} __attribute__((packed)) TCONX_RSP_EXT;
+
+
/* tree connect Flags */
#define DISCONNECT_TID 0x0001
+#define TCON_EXTENDED_SIGNATURES 0x0004
#define TCON_EXTENDED_SECINFO 0x0008
+
/* OptionalSupport bits */
#define SMB_SUPPORT_SEARCH_BITS 0x0001 /* "must have" directory search bits
(exclusive searches supported) */
#define SMB_SHARE_IS_IN_DFS 0x0002
+#define SMB_CSC_MASK 0x000C
+/* CSC flags defined as follows */
+#define SMB_CSC_CACHE_MANUAL_REINT 0x0000
+#define SMB_CSC_CACHE_AUTO_REINT 0x0004
+#define SMB_CSC_CACHE_VDO 0x0008
+#define SMB_CSC_NO_CACHING 0x000C
+#define SMB_UNIQUE_FILE_NAME 0x0010
+#define SMB_EXTENDED_SIGNATURES 0x0020
+
+/* services
+ *
+ * A: ie disk
+ * LPT1: ie printer
+ * IPC ie named pipe
+ * COMM
+ * ????? ie any type
+ *
+ */
typedef struct smb_com_logoff_andx_req {
struct smb_hdr hdr; /* wct = 2 */
@@ -725,6 +812,25 @@ typedef struct smb_com_findclose_req {
#define REQ_OPENDIRONLY 0x00000008
#define REQ_EXTENDED_INFO 0x00000010
+/* File type */
+#define DISK_TYPE 0x0000
+#define BYTE_PIPE_TYPE 0x0001
+#define MESSAGE_PIPE_TYPE 0x0002
+#define PRINTER_TYPE 0x0003
+#define COMM_DEV_TYPE 0x0004
+#define UNKNOWN_TYPE 0xFFFF
+
+/* Device Type or File Status Flags */
+#define NO_EAS 0x0001
+#define NO_SUBSTREAMS 0x0002
+#define NO_REPARSETAG 0x0004
+/* following flags can apply if pipe */
+#define ICOUNT_MASK 0x00FF
+#define PIPE_READ_MODE 0x0100
+#define NAMED_PIPE_TYPE 0x0400
+#define PIPE_END_POINT 0x4000
+#define BLOCKING_NAMED_PIPE 0x8000
+
typedef struct smb_com_open_req { /* also handles create */
struct smb_hdr hdr; /* wct = 24 */
__u8 AndXCommand;
@@ -733,7 +839,7 @@ typedef struct smb_com_open_req { /* also handles create */
__u8 Reserved; /* Must Be Zero */
__le16 NameLength;
__le32 OpenFlags;
- __le32 RootDirectoryFid;
+ __u32 RootDirectoryFid;
__le32 DesiredAccess;
__le64 AllocationSize;
__le32 FileAttributes;
@@ -776,6 +882,32 @@ typedef struct smb_com_open_rsp {
__u16 ByteCount; /* bct = 0 */
} __attribute__((packed)) OPEN_RSP;
+typedef struct smb_com_open_rsp_ext {
+ struct smb_hdr hdr; /* wct = 42 but meaningless due to MS bug? */
+ __u8 AndXCommand;
+ __u8 AndXReserved;
+ __le16 AndXOffset;
+ __u8 OplockLevel;
+ __u16 Fid;
+ __le32 CreateAction;
+ __le64 CreationTime;
+ __le64 LastAccessTime;
+ __le64 LastWriteTime;
+ __le64 ChangeTime;
+ __le32 FileAttributes;
+ __le64 AllocationSize;
+ __le64 EndOfFile;
+ __le16 FileType;
+ __le16 DeviceState;
+ __u8 DirectoryFlag;
+ __u8 VolumeGUID[16];
+ __u64 FileId; /* note no endian conversion - is opaque UniqueID */
+ __le32 MaximalAccessRights;
+ __le32 GuestMaximalAccessRights;
+ __u16 ByteCount; /* bct = 0 */
+} __attribute__((packed)) OPEN_RSP_EXT;
+
+
/* format of legacy open request */
typedef struct smb_com_openx_req {
struct smb_hdr hdr; /* wct = 15 */
@@ -1206,6 +1338,29 @@ typedef struct smb_com_transaction_qsec_req {
__le32 AclFlags;
} __attribute__((packed)) QUERY_SEC_DESC_REQ;
+
+typedef struct smb_com_transaction_ssec_req {
+ struct smb_hdr hdr; /* wct = 19 */
+ __u8 MaxSetupCount;
+ __u16 Reserved;
+ __le32 TotalParameterCount;
+ __le32 TotalDataCount;
+ __le32 MaxParameterCount;
+ __le32 MaxDataCount;
+ __le32 ParameterCount;
+ __le32 ParameterOffset;
+ __le32 DataCount;
+ __le32 DataOffset;
+ __u8 SetupCount; /* no setup words follow subcommand */
+ /* SNIA spec incorrectly included spurious pad here */
+ __le16 SubCommand; /* 3 = SET_SECURITY_DESC */
+ __le16 ByteCount; /* bcc = 3 + 8 */
+ __u8 Pad[3];
+ __u16 Fid;
+ __u16 Reserved2;
+ __le32 AclFlags;
+} __attribute__((packed)) SET_SEC_DESC_REQ;
+
typedef struct smb_com_transaction_change_notify_req {
struct smb_hdr hdr; /* wct = 23 */
__u8 MaxSetupCount;
@@ -1655,6 +1810,12 @@ typedef struct smb_com_transaction2_fnext_rsp_parms {
#define SMB_QUERY_CIFS_UNIX_INFO 0x200
#define SMB_QUERY_POSIX_FS_INFO 0x201
#define SMB_QUERY_POSIX_WHO_AM_I 0x202
+#define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
+#define SMB_QUERY_FS_PROXY 0x204 /* WAFS enabled. Returns structure
+ FILE_SYSTEM__UNIX_INFO to tell
+ whether new NTIOCTL available
+ (0xACE) for WAN friendly SMB
+ operations to be carried */
#define SMB_QUERY_LABEL_INFO 0x3ea
#define SMB_QUERY_FS_QUOTA_INFO 0x3ee
#define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
@@ -1765,19 +1926,26 @@ typedef struct smb_com_transaction2_get_dfs_refer_req {
char RequestFileName[1];
} __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
+#define DFS_VERSION cpu_to_le16(0x0003)
+
+/* DFS server target type */
+#define DFS_TYPE_LINK 0x0000 /* also for sysvol targets */
+#define DFS_TYPE_ROOT 0x0001
+
+/* Referral Entry Flags */
+#define DFS_NAME_LIST_REF 0x0200
+
typedef struct dfs_referral_level_3 {
__le16 VersionNumber;
- __le16 ReferralSize;
- __le16 ServerType; /* 0x0001 = CIFS server */
- __le16 ReferralFlags; /* or proximity - not clear which since it is
- always set to zero - SNIA spec says 0x01
- means strip off PathConsumed chars before
- submitting RequestFileName to remote node */
- __le16 TimeToLive;
- __le16 Proximity;
+ __le16 Size;
+ __le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
+ __le16 ReferralEntryFlags; /* 0x0200 bit set only for domain
+ or DC referral responce */
+ __le32 TimeToLive;
__le16 DfsPathOffset;
__le16 DfsAlternatePathOffset;
- __le16 NetworkAddressOffset;
+ __le16 NetworkAddressOffset; /* offset of the link target */
+ __le16 ServiceSiteGuid;
} __attribute__((packed)) REFERRAL3;
typedef struct smb_com_transaction_get_dfs_refer_rsp {
@@ -1911,7 +2079,10 @@ typedef struct {
#define CIFS_UNIX_LARGE_READ_CAP 0x00000040 /* support reads >128K (up
to 0xFFFF00 */
#define CIFS_UNIX_LARGE_WRITE_CAP 0x00000080
-
+#define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
+#define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP 0x00000200 /* must do */
+#define CIFS_UNIX_PROXY_CAP 0x00000400 /* Proxy cap: 0xACE ioctl and
+ QFS PROXY call */
#ifdef CONFIG_CIFS_POSIX
/* Can not set pathnames cap yet until we send new posix create SMB since
otherwise server can treat such handles opened with older ntcreatex
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 24880ff..0955988 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsproto.h
*
- * Copyright (c) International Business Machines Corp., 2002,2007
+ * Copyright (c) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -52,8 +52,8 @@ extern int smb_send(struct socket *, struct smb_hdr *,
unsigned int /* length */ , struct sockaddr *);
extern unsigned int _GetXid(void);
extern void _FreeXid(unsigned int);
-#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
-#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
+#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__func__, xid,current->fsuid));
+#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__func__,curr_xid,(int)rc));}
extern char *build_path_from_dentry(struct dentry *);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
/* extern void renew_parental_timestamps(struct dentry *direntry);*/
@@ -66,20 +66,24 @@ extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
struct kvec *, int /* nvec to send */,
int * /* type of buf returned */ , const int flags);
-extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
- struct cifsTconInfo *,
- struct smb_hdr * /* input */ ,
- struct smb_hdr * /* out */ ,
- int * /* bytes returned */);
+extern int SendReceiveBlockingLock(const unsigned int xid,
+ struct cifsTconInfo *ptcon,
+ struct smb_hdr *in_buf ,
+ struct smb_hdr *out_buf,
+ int *bytes_returned);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
-extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
-extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
+extern bool is_valid_oplock_break(struct smb_hdr *smb,
+ struct TCP_Server_Info *);
+extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *);
+#endif
extern unsigned int smbCalcSize(struct smb_hdr *ptr);
extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
extern int decode_negTokenInit(unsigned char *security_blob, int length,
enum securityEnum *secType);
-extern int cifs_inet_pton(int, char *source, void *dst);
+extern int cifs_inet_pton(const int, const char *source, void *dst);
extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
extern void header_assemble(struct smb_hdr *, char /* command */ ,
const struct cifsTconInfo *, int /* length of
@@ -94,28 +98,40 @@ extern __u16 GetNextMid(struct TCP_Server_Info *server);
extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16,
struct cifsTconInfo *);
extern void DeleteOplockQEntry(struct oplock_q_entry *);
+extern void DeleteTconOplockQEntries(struct cifsTconInfo *);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
extern u64 cifs_UnixTimeToNT(struct timespec);
extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
#else
extern u64 cifs_UnixTimeToNT(time_t);
-extern time_t cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
+extern time_t cifs_NTtimeToUnix(u64);
extern time_t cnvrtDosUnixTm(__u16 date, __u16 time);
#endif
extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
extern int cifs_get_inode_info(struct inode **pinode,
const unsigned char *search_path,
- FILE_ALL_INFO * pfile_info,
- struct super_block *sb, int xid);
+ FILE_ALL_INFO *pfile_info,
+ struct super_block *sb, int xid, const __u16 *pfid);
extern int cifs_get_inode_info_unix(struct inode **pinode,
const unsigned char *search_path,
struct super_block *sb, int xid);
+extern void acl_to_uid_mode(struct inode *inode, const char *path,
+ const __u16 *pfid);
+extern int mode_to_acl(struct inode *inode, const char *path, __u64);
extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
const char *);
extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
+#ifdef CONFIG_CIFS_DFS_UPCALL
+extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt);
+#else
+static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt)
+{
+}
+#endif /* DFS_UPCALL */
+extern void cifs_dfs_release_automount_timer(void);
void cifs_proc_init(void);
void cifs_proc_clean(void);
@@ -140,7 +156,7 @@ extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
- FILE_ALL_INFO * findData,
+ FILE_ALL_INFO *findData,
int legacy /* whether to use old info level */,
const struct nls_table *nls_codepage, int remap);
extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
@@ -151,23 +167,20 @@ extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
extern int CIFSSMBUnixQPathInfo(const int xid,
struct cifsTconInfo *tcon,
const unsigned char *searchName,
- FILE_UNIX_BASIC_INFO * pFindData,
+ FILE_UNIX_BASIC_INFO *pFindData,
const struct nls_table *nls_codepage, int remap);
extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
const unsigned char *searchName,
- unsigned char **targetUNCs,
- unsigned int *number_of_UNC_in_array,
+ struct dfs_info3_param **target_nodes,
+ unsigned int *number_of_nodes_in_array,
const struct nls_table *nls_codepage, int remap);
-extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
- const char *old_path,
- const struct nls_table *nls_codepage, int remap);
extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
const char *old_path,
const struct nls_table *nls_codepage,
unsigned int *pnum_referrals,
- unsigned char **preferrals,
+ struct dfs_info3_param **preferrals,
int remap);
extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
struct super_block *sb, struct smb_vol *vol);
@@ -196,12 +209,13 @@ extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
struct statfs *FSData);
#endif
-extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
- const char *fileName, const FILE_BASIC_INFO * data,
+extern int CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
+ const char *fileName, const FILE_BASIC_INFO *data,
const struct nls_table *nls_codepage,
int remap_special_chars);
-extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
- const FILE_BASIC_INFO * data, __u16 fid);
+extern int CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+ const FILE_BASIC_INFO *data, __u16 fid,
+ __u32 pid_of_opener);
#if 0
extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
char *fileName, __u16 dos_attributes,
@@ -209,15 +223,26 @@ extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
#endif /* possibly unneeded function */
extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
const char *fileName, __u64 size,
- int setAllocationSizeFlag,
+ bool setAllocationSizeFlag,
const struct nls_table *nls_codepage,
int remap_special_chars);
extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
__u64 size, __u16 fileHandle, __u32 opener_pid,
- int AllocSizeFlag);
-extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon,
- char *full_path, __u64 mode, __u64 uid,
- __u64 gid, dev_t dev,
+ bool AllocSizeFlag);
+
+struct cifs_unix_set_info_args {
+ __u64 ctime;
+ __u64 atime;
+ __u64 mtime;
+ __u64 mode;
+ __u64 uid;
+ __u64 gid;
+ dev_t device;
+};
+
+extern int CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *pTcon,
+ char *fileName,
+ const struct cifs_unix_set_info_args *args,
const struct nls_table *nls_codepage,
int remap_special_chars);
@@ -272,15 +297,15 @@ extern int CIFSSMBQueryReparseLinkInfo(const int xid,
extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
const char *fileName, const int disposition,
const int access_flags, const int omode,
- __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
+ __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
const struct nls_table *nls_codepage, int remap);
extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
const char *fileName, const int disposition,
const int access_flags, const int omode,
- __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
+ __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
const struct nls_table *nls_codepage, int remap);
extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon,
- u32 posix_flags, __u64 mode, __u16 * netfid,
+ u32 posix_flags, __u64 mode, __u16 *netfid,
FILE_UNIX_BASIC_INFO *pRetData,
__u32 *pOplock, const char *name,
const struct nls_table *nls_codepage, int remap);
@@ -301,7 +326,7 @@ extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const __u64 offset, unsigned int *nbytes,
struct kvec *iov, const int nvec, const int long_op);
extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName, __u64 * inode_number,
+ const unsigned char *searchName, __u64 *inode_number,
const struct nls_table *nls_codepage,
int remap_special_chars);
extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen,
@@ -313,11 +338,11 @@ extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
const __u16 netfid, const __u64 len,
const __u64 offset, const __u32 numUnlock,
const __u32 numLock, const __u8 lockType,
- const int waitFlag);
+ const bool waitFlag);
extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
const __u16 smb_file_id, const int get_flag,
const __u64 len, struct file_lock *,
- const __u16 lock_type, const int waitFlag);
+ const __u16 lock_type, const bool waitFlag);
extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
@@ -366,8 +391,9 @@ extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
const void *ea_value, const __u16 ea_value_len,
const struct nls_table *nls_codepage, int remap_special_chars);
extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
- __u16 fid, char *acl_inf, const int buflen,
- const int acl_type /* ACCESS vs. DEFAULT */);
+ __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
+extern int CIFSSMBSetCIFSACL(const int, struct cifsTconInfo *, __u16,
+ struct cifs_ntsd *, __u32);
extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
char *acl_inf, const int buflen, const int acl_type,
@@ -377,7 +403,7 @@ extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
const char *local_acl, const int buflen, const int acl_type,
const struct nls_table *nls_codepage, int remap_special_chars);
extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
- const int netfid, __u64 * pExtAttrBits, __u64 *pMask);
+ const int netfid, __u64 * pExtAttrBits, __u64 *pMask);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 16)
extern void * kzalloc(size_t size, unsigned flgs);
#endif
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 2c04feb..83ca395 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifssmb.c
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Contains the routines for constructing the SMB PDUs themselves
@@ -37,10 +37,10 @@
#include <asm/uaccess.h>
#include "cifspdu.h"
#include "cifsglob.h"
+#include "cifsacl.h"
#include "cifsproto.h"
#include "cifs_unicode.h"
#include "cifs_debug.h"
-#include "cifsacl.h"
#ifdef CONFIG_CIFS_POSIX
static struct {
@@ -84,6 +84,40 @@ static struct {
#endif /* CONFIG_CIFS_WEAK_PW_HASH */
#endif /* CIFS_POSIX */
+/* Allocates buffer into dst and copies smb string from src to it.
+ * caller is responsible for freeing dst if function returned 0.
+ * returns:
+ * on success - 0
+ * on failure - errno
+ */
+static int
+cifs_strncpy_to_host(char **dst, const char *src, const int maxlen,
+ const bool is_unicode, const struct nls_table *nls_codepage)
+{
+ int plen;
+
+ if (is_unicode) {
+ plen = UniStrnlen((wchar_t *)src, maxlen);
+ *dst = kmalloc(plen + 2, GFP_KERNEL);
+ if (!*dst)
+ goto cifs_strncpy_to_host_ErrExit;
+ cifs_strfromUCS_le(*dst, (__le16 *)src, plen, nls_codepage);
+ } else {
+ plen = strnlen(src, maxlen);
+ *dst = kmalloc(plen + 2, GFP_KERNEL);
+ if (!*dst)
+ goto cifs_strncpy_to_host_ErrExit;
+ strncpy(*dst, src, plen);
+ }
+ (*dst)[plen] = 0;
+ (*dst)[plen+1] = 0; /* harmless for ASCII case, needed for Unicode */
+ return 0;
+
+cifs_strncpy_to_host_ErrExit:
+ cERROR(1, ("Failed to allocate buffer for string\n"));
+ return -ENOMEM;
+}
+
/* Mark as invalid, all open files on tree connections since they
were closed when session to server was lost */
@@ -97,18 +131,19 @@ static void mark_open_files_invalid(struct cifsTconInfo *pTcon)
write_lock(&GlobalSMBSeslock);
list_for_each_safe(tmp, tmp1, &pTcon->openFileList) {
open_file = list_entry(tmp, struct cifsFileInfo, tlist);
- if (open_file)
- open_file->invalidHandle = TRUE;
+ open_file->invalidHandle = true;
}
write_unlock(&GlobalSMBSeslock);
/* BB Add call to invalidate_inodes(sb) for all superblocks mounted
to this tcon */
}
-/* If the return code is zero, this function must fill in request_buf pointer */
+/* Allocate and return pointer to an SMB request buffer, and set basic
+ SMB information in the SMB header. If the return code is zero, this
+ function must have filled in request_buf pointer */
static int
small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
- void **request_buf /* returned */)
+ void **request_buf)
{
int rc = 0;
@@ -149,7 +184,7 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
#endif
if (tcon->ses->server->tcpStatus == CifsNeedReconnect) {
/* on "soft" mounts we wait once */
- if ((tcon->retry == FALSE) ||
+ if (!tcon->retry ||
(tcon->ses->status == CifsExiting)) {
cFYI(1, ("gave up waiting on "
"reconnect in smb_init"));
@@ -173,17 +208,19 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
rc = CIFSTCon(0, tcon->ses, tcon->treeName,
tcon, nls_codepage);
up(&tcon->ses->sesSem);
- /* tell server which Unix caps we support */
- if (tcon->ses->capabilities & CAP_UNIX)
- reset_cifs_unix_caps(0 /* no xid */,
- tcon,
- NULL /* we do not know sb */,
- NULL /* no vol info */);
/* BB FIXME add code to check if wsize needs
update due to negotiated smb buffer size
shrinking */
- if (rc == 0)
+ if (rc == 0) {
atomic_inc(&tconInfoReconnectCount);
+ /* tell server Unix caps we support */
+ if (tcon->ses->capabilities & CAP_UNIX)
+ reset_cifs_unix_caps(
+ 0 /* no xid */,
+ tcon,
+ NULL /* we do not know sb */,
+ NULL /* no vol info */);
+ }
cFYI(1, ("reconnect tcon rc = %d", rc));
/* Removed call to reopen open files here.
@@ -303,7 +340,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
if (tcon->ses->server->tcpStatus ==
CifsNeedReconnect) {
/* on "soft" mounts we wait once */
- if ((tcon->retry == FALSE) ||
+ if (!tcon->retry ||
(tcon->ses->status == CifsExiting)) {
cFYI(1, ("gave up waiting on "
"reconnect in smb_init"));
@@ -326,17 +363,19 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
rc = CIFSTCon(0, tcon->ses, tcon->treeName,
tcon, nls_codepage);
up(&tcon->ses->sesSem);
- /* tell server which Unix caps we support */
- if (tcon->ses->capabilities & CAP_UNIX)
- reset_cifs_unix_caps(0 /* no xid */,
- tcon,
- NULL /* do not know sb */,
- NULL /* no vol info */);
/* BB FIXME add code to check if wsize needs
update due to negotiated smb buffer size
shrinking */
- if (rc == 0)
+ if (rc == 0) {
atomic_inc(&tconInfoReconnectCount);
+ /* tell server Unix caps we support */
+ if (tcon->ses->capabilities & CAP_UNIX)
+ reset_cifs_unix_caps(
+ 0 /* no xid */,
+ tcon,
+ NULL /* do not know sb */,
+ NULL /* no vol info */);
+ }
cFYI(1, ("reconnect tcon rc = %d", rc));
/* Removed call to reopen open files here.
@@ -381,7 +420,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
*response_buf = *request_buf;
header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,
- wct /*wct */ );
+ wct);
if (tcon != NULL)
cifs_stats_inc(&tcon->num_smbs_sent);
@@ -541,7 +580,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
if (remain >= (MIN_TZ_ADJ / 2))
result += MIN_TZ_ADJ;
if (val < 0)
- result = - result;
+ result = -result;
server->timeAdj = result;
} else {
server->timeAdj = (int)tmp;
@@ -618,7 +657,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize),
(__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
- cFYI(0, ("Max buf = %d", ses->server->maxBuf));
+ cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf));
GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
server->capabilities = le32_to_cpu(pSMBr->Capabilities);
server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone);
@@ -639,33 +678,35 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) &&
(server->capabilities & CAP_EXTENDED_SECURITY)) {
count = pSMBr->ByteCount;
- if (count < 16)
+ if (count < 16) {
rc = -EIO;
- else if (count == 16) {
- server->secType = RawNTLMSSP;
- if (server->socketUseCount.counter > 1) {
- if (memcmp(server->server_GUID,
- pSMBr->u.extended_response.
- GUID, 16) != 0) {
- cFYI(1, ("server UID changed"));
- memcpy(server->server_GUID,
- pSMBr->u.extended_response.GUID,
- 16);
- }
- } else
+ goto neg_err_exit;
+ }
+
+ if (server->socketUseCount.counter > 1) {
+ if (memcmp(server->server_GUID,
+ pSMBr->u.extended_response.
+ GUID, 16) != 0) {
+ cFYI(1, ("server UID changed"));
memcpy(server->server_GUID,
- pSMBr->u.extended_response.GUID, 16);
+ pSMBr->u.extended_response.GUID,
+ 16);
+ }
+ } else
+ memcpy(server->server_GUID,
+ pSMBr->u.extended_response.GUID, 16);
+
+ if (count == 16) {
+ server->secType = RawNTLMSSP;
} else {
rc = decode_negTokenInit(pSMBr->u.extended_response.
SecurityBlob,
count - 16,
&server->secType);
- if (rc == 1) {
- /* BB Need to fill struct for sessetup here */
- rc = -EOPNOTSUPP;
- } else {
+ if (rc == 1)
+ rc = 0;
+ else
rc = -EINVAL;
- }
}
} else
server->capabilities &= ~CAP_EXTENDED_SECURITY;
@@ -677,10 +718,12 @@ signing_check:
/* MUST_SIGN already includes the MAY_SIGN FLAG
so if this is zero it means that signing is disabled */
cFYI(1, ("Signing disabled"));
- if (server->secMode & SECMODE_SIGN_REQUIRED)
+ if (server->secMode & SECMODE_SIGN_REQUIRED) {
cERROR(1, ("Server requires "
"packet signing to be enabled in "
"/proc/fs/cifs/SecurityFlags."));
+ rc = -EOPNOTSUPP;
+ }
server->secMode &=
~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
} else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) {
@@ -881,9 +924,8 @@ PsxDelete:
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("Posix delete returned %d", rc));
- }
cifs_buf_release(pSMB);
cifs_stats_inc(&tcon->num_deletes);
@@ -929,9 +971,8 @@ DelFileRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_deletes);
- if (rc) {
+ if (rc)
cFYI(1, ("Error in RMFile = %d", rc));
- }
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
@@ -974,9 +1015,8 @@ RmDirRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_rmdirs);
- if (rc) {
+ if (rc)
cFYI(1, ("Error in RMDir = %d", rc));
- }
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
@@ -1018,9 +1058,8 @@ MkDirRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_mkdirs);
- if (rc) {
+ if (rc)
cFYI(1, ("Error in Mkdir = %d", rc));
- }
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
@@ -1030,7 +1069,7 @@ MkDirRetry:
int
CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags,
- __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData,
+ __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData,
__u32 *pOplock, const char *name,
const struct nls_table *nls_codepage, int remap)
{
@@ -1040,8 +1079,8 @@ CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags,
int rc = 0;
int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count, count;
- OPEN_PSX_REQ * pdata;
- OPEN_PSX_RSP * psx_rsp;
+ OPEN_PSX_REQ *pdata;
+ OPEN_PSX_RSP *psx_rsp;
cFYI(1, ("In POSIX Create"));
PsxCreat:
@@ -1123,9 +1162,7 @@ PsxCreat:
/* check to make sure response data is there */
if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) {
pRetData->Type = cpu_to_le32(-1); /* unknown */
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("unknown type"));
-#endif
+ cFYI(DBG2, ("unknown type"));
} else {
if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP)
+ sizeof(FILE_UNIX_BASIC_INFO)) {
@@ -1179,11 +1216,25 @@ static __u16 convert_disposition(int disposition)
return ofun;
}
+static int
+access_flags_to_smbopen_mode(const int access_flags)
+{
+ int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE);
+
+ if (masked_flags == GENERIC_READ)
+ return SMBOPEN_READ;
+ else if (masked_flags == GENERIC_WRITE)
+ return SMBOPEN_WRITE;
+
+ /* just go for read/write */
+ return SMBOPEN_READWRITE;
+}
+
int
SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
const char *fileName, const int openDisposition,
- const int access_flags, const int create_options, __u16 * netfid,
- int *pOplock, FILE_ALL_INFO * pfile_info,
+ const int access_flags, const int create_options, __u16 *netfid,
+ int *pOplock, FILE_ALL_INFO *pfile_info,
const struct nls_table *nls_codepage, int remap)
{
int rc = -EACCES;
@@ -1220,13 +1271,7 @@ OldOpenRetry:
pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK);
pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO);
- /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */
- /* 0 = read
- 1 = write
- 2 = rw
- 3 = execute
- */
- pSMB->Mode = cpu_to_le16(2);
+ pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags));
pSMB->Mode |= cpu_to_le16(0x40); /* deny none */
/* set file as system file if special file such
as fifo and server expecting SFU style and
@@ -1234,14 +1279,11 @@ OldOpenRetry:
if (create_options & CREATE_OPTION_SPECIAL)
pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM);
- else
- pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */
+ else /* BB FIXME BB */
+ pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/);
- /* if ((omode & S_IWUGO) == 0)
- pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
- /* Above line causes problems due to vfs splitting create into two
- pieces - need to set mode after file created not while it is
- being created */
+ if (create_options & CREATE_OPTION_READONLY)
+ pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY);
/* BB FIXME BB */
/* pSMB->CreateOptions = cpu_to_le32(create_options &
@@ -1263,7 +1305,7 @@ OldOpenRetry:
} else {
/* BB verify if wct == 15 */
-/* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */
+/* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/
*netfid = pSMBr->Fid; /* cifs fid stays in le */
/* Let caller know file was created so we can set the mode. */
@@ -1297,8 +1339,8 @@ OldOpenRetry:
int
CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
const char *fileName, const int openDisposition,
- const int access_flags, const int create_options, __u16 * netfid,
- int *pOplock, FILE_ALL_INFO * pfile_info,
+ const int access_flags, const int create_options, __u16 *netfid,
+ int *pOplock, FILE_ALL_INFO *pfile_info,
const struct nls_table *nls_codepage, int remap)
{
int rc = -EACCES;
@@ -1344,17 +1386,16 @@ openRetry:
pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM);
else
pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL);
+
/* XP does not handle ATTR_POSIX_SEMANTICS */
/* but it helps speed up case sensitive checks for other
servers such as Samba */
if (tcon->ses->capabilities & CAP_UNIX)
pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS);
- /* if ((omode & S_IWUGO) == 0)
- pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
- /* Above line causes problems due to vfs splitting create into two
- pieces - need to set mode after file created not while it is
- being created */
+ if (create_options & CREATE_OPTION_READONLY)
+ pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);
+
pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL);
pSMB->CreateDisposition = cpu_to_le32(openDisposition);
pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK);
@@ -1569,9 +1610,9 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
} /* else setting file size with write of zero bytes */
if (wct == 14)
byte_count = bytes_sent + 1; /* pad */
- else /* wct == 12 */ {
+ else /* wct == 12 */
byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */
- }
+
pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF);
pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16);
pSMB->hdr.smb_buf_length += byte_count;
@@ -1676,7 +1717,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
rc = -EIO;
*nbytes = 0;
} else {
- WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base;
+ WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base;
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
@@ -1699,27 +1740,25 @@ int
CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
const __u16 smb_file_id, const __u64 len,
const __u64 offset, const __u32 numUnlock,
- const __u32 numLock, const __u8 lockType, const int waitFlag)
+ const __u32 numLock, const __u8 lockType, const bool waitFlag)
{
int rc = 0;
LOCK_REQ *pSMB = NULL;
- LOCK_RSP *pSMBr = NULL;
+/* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */
int bytes_returned;
int timeout = 0;
__u16 count;
- cFYI(1, ("CIFSSMBLock timeout %d numLock %d", waitFlag, numLock));
+ cFYI(1, ("CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock));
rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB);
if (rc)
return rc;
- pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */
-
if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) {
timeout = CIFS_ASYNC_OP; /* no response expected */
pSMB->Timeout = 0;
- } else if (waitFlag == TRUE) {
+ } else if (waitFlag) {
timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */
pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */
} else {
@@ -1749,7 +1788,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
if (waitFlag) {
rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned);
+ (struct smb_hdr *) pSMB, &bytes_returned);
cifs_small_buf_release(pSMB);
} else {
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB,
@@ -1757,9 +1796,8 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
/* SMB buffer freed by function above */
}
cifs_stats_inc(&tcon->num_locks);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in Lock = %d", rc));
- }
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
@@ -1770,7 +1808,7 @@ int
CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
const __u16 smb_file_id, const int get_flag, const __u64 len,
struct file_lock *pLockData, const __u16 lock_type,
- const int waitFlag)
+ const bool waitFlag)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
@@ -1785,7 +1823,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
cFYI(1, ("Posix Lock"));
if (pLockData == NULL)
- return EINVAL;
+ return -EINVAL;
rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
@@ -1804,7 +1842,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
count = sizeof(struct cifs_posix_lock);
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */
pSMB->SetupCount = 1;
pSMB->Reserved3 = 0;
if (get_flag)
@@ -1962,7 +2000,7 @@ renameRetry:
/* protocol requires ASCII signature byte on Unicode string */
pSMB->OldFileName[name_len + 1] = 0x00;
name_len2 =
- cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2],
+ cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2],
toName, PATH_MAX, nls_codepage, remap);
name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
name_len2 *= 2; /* convert to bytes */
@@ -1985,9 +2023,8 @@ renameRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_renames);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in rename = %d", rc));
- }
cifs_buf_release(pSMB);
@@ -2029,7 +2066,7 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
rename_info = (struct set_file_rename *) data_offset;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */
pSMB->SetupCount = 1;
pSMB->Reserved3 = 0;
pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
@@ -2065,9 +2102,8 @@ int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&pTcon->num_t2renames);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in Rename (by file handle) = %d", rc));
- }
cifs_buf_release(pSMB);
@@ -2137,8 +2173,7 @@ copyRetry:
cFYI(1, ("Send error in copy = %d with %d files copied",
rc, le16_to_cpu(pSMBr->CopyCount)));
}
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto copyRetry;
@@ -2224,12 +2259,10 @@ createSymLinkRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_symlinks);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc));
- }
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto createSymLinkRetry;
@@ -2312,9 +2345,8 @@ createHardLinkRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_hardlinks);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc));
- }
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
@@ -2383,9 +2415,9 @@ winCreateHardLinkRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_hardlinks);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in hard link (NT rename) = %d", rc));
- }
+
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto winCreateHardLinkRetry;
@@ -2492,6 +2524,7 @@ querySymLinkRetry:
return rc;
}
+#ifdef CONFIG_CIFS_EXPERIMENTAL
/* Initialize NT TRANSACT SMB into small smb request buffer.
This assumes that all NT TRANSACTS that we init here have
total parm and data under about 400 bytes (to fit in small cifs
@@ -2500,7 +2533,7 @@ querySymLinkRetry:
MaxSetupCount (size of returned setup area) and
MaxParameterCount (returned parms size) must be set by caller */
static int
-smb_init_ntransact(const __u16 sub_command, const int setup_count,
+smb_init_nttransact(const __u16 sub_command, const int setup_count,
const int parm_len, struct cifsTconInfo *tcon,
void **ret_buf)
{
@@ -2531,12 +2564,15 @@ smb_init_ntransact(const __u16 sub_command, const int setup_count,
static int
validate_ntransact(char *buf, char **ppparm, char **ppdata,
- int *pdatalen, int *pparmlen)
+ __u32 *pparmlen, __u32 *pdatalen)
{
char *end_of_smb;
__u32 data_count, data_offset, parm_count, parm_offset;
struct smb_com_ntransact_rsp *pSMBr;
+ *pdatalen = 0;
+ *pparmlen = 0;
+
if (buf == NULL)
return -EINVAL;
@@ -2573,8 +2609,11 @@ validate_ntransact(char *buf, char **ppparm, char **ppdata,
cFYI(1, ("parm count and data count larger than SMB"));
return -EINVAL;
}
+ *pdatalen = data_count;
+ *pparmlen = parm_count;
return 0;
}
+#endif /* CIFS_EXPERIMENTAL */
int
CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
@@ -2941,7 +2980,8 @@ setAclRetry:
}
params = 6 + name_len;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */
+ /* BB find max SMB size from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -2975,9 +3015,8 @@ setAclRetry:
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("Set POSIX ACL returned %d", rc));
- }
setACLerrorExit:
cifs_buf_release(pSMB);
@@ -2989,7 +3028,7 @@ setACLerrorExit:
/* BB fix tabs in this function FIXME BB */
int
CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
- const int netfid, __u64 * pExtAttrBits, __u64 *pMask)
+ const int netfid, __u64 *pExtAttrBits, __u64 *pMask)
{
int rc = 0;
struct smb_t2_qfi_req *pSMB = NULL;
@@ -3007,7 +3046,7 @@ GetExtAttrRetry:
if (rc)
return rc;
- params = 2 /* level */ +2 /* fid */;
+ params = 2 /* level */ + 2 /* fid */;
pSMB->t2.TotalDataCount = 0;
pSMB->t2.MaxParameterCount = cpu_to_le16(4);
/* BB find exact max data count below from sess structure BB */
@@ -3071,33 +3110,23 @@ GetExtAttrOut:
#endif /* CONFIG_POSIX */
#endif /* if version > 2.5 */
-/* security id for everyone */
-static const struct cifs_sid sid_everyone =
- {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
-/* group users */
-static const struct cifs_sid sid_user =
- {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
-
-/* Convert CIFS ACL to POSIX form */
-static int parse_sec_desc(struct cifs_sid *psec_desc, int acl_len)
-{
- return 0;
-}
-
+#ifdef CONFIG_CIFS_EXPERIMENTAL
/* Get Security Descriptor (by handle) from remote server for a file or dir */
int
CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
- /* BB fix up return info */ char *acl_inf, const int buflen,
- const int acl_type /* ACCESS/DEFAULT not sure implication */)
+ struct cifs_ntsd **acl_inf, __u32 *pbuflen)
{
int rc = 0;
int buf_type = 0;
- QUERY_SEC_DESC_REQ * pSMB;
+ QUERY_SEC_DESC_REQ *pSMB;
struct kvec iov[1];
cFYI(1, ("GetCifsACL"));
- rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0,
+ *pbuflen = 0;
+ *acl_inf = NULL;
+
+ rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0,
8 /* parm len */, tcon, (void **) &pSMB);
if (rc)
return rc;
@@ -3119,34 +3148,52 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
if (rc) {
cFYI(1, ("Send error in QuerySecDesc = %d", rc));
} else { /* decode response */
- struct cifs_sid *psec_desc;
- __le32 * parm;
- int parm_len;
- int data_len;
- int acl_len;
+ __le32 *parm;
+ __u32 parm_len;
+ __u32 acl_len;
struct smb_com_ntransact_rsp *pSMBr;
+ char *pdata;
/* validate_nttransact */
rc = validate_ntransact(iov[0].iov_base, (char **)&parm,
- (char **)&psec_desc,
- &parm_len, &data_len);
+ &pdata, &parm_len, pbuflen);
if (rc)
goto qsec_out;
pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base;
- cFYI(1, ("smb %p parm %p data %p", pSMBr, parm, psec_desc));
+ cFYI(1, ("smb %p parm %p data %p", pSMBr, parm, *acl_inf));
if (le32_to_cpu(pSMBr->ParameterCount) != 4) {
rc = -EIO; /* bad smb */
+ *pbuflen = 0;
goto qsec_out;
}
/* BB check that data area is minimum length and as big as acl_len */
- acl_len = le32_to_cpu(*(__le32 *)parm);
- /* BB check if (acl_len > bufsize) */
+ acl_len = le32_to_cpu(*parm);
+ if (acl_len != *pbuflen) {
+ cERROR(1, ("acl length %d does not match %d",
+ acl_len, *pbuflen));
+ if (*pbuflen > acl_len)
+ *pbuflen = acl_len;
+ }
- parse_sec_desc(psec_desc, acl_len);
+ /* check if buffer is big enough for the acl
+ header followed by the smallest SID */
+ if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) ||
+ (*pbuflen >= 64 * 1024)) {
+ cERROR(1, ("bad acl length %d", *pbuflen));
+ rc = -EINVAL;
+ *pbuflen = 0;
+ } else {
+ *acl_inf = kmalloc(*pbuflen, GFP_KERNEL);
+ if (*acl_inf == NULL) {
+ *pbuflen = 0;
+ rc = -ENOMEM;
+ }
+ memcpy(*acl_inf, pdata, *pbuflen);
+ }
}
qsec_out:
if (buf_type == CIFS_SMALL_BUFFER)
@@ -3157,6 +3204,72 @@ qsec_out:
return rc;
}
+int
+CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
+ struct cifs_ntsd *pntsd, __u32 acllen)
+{
+ __u16 byte_count, param_count, data_count, param_offset, data_offset;
+ int rc = 0;
+ int bytes_returned = 0;
+ SET_SEC_DESC_REQ *pSMB = NULL;
+ NTRANSACT_RSP *pSMBr = NULL;
+
+setCifsAclRetry:
+ rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB,
+ (void **) &pSMBr);
+ if (rc)
+ return (rc);
+
+ pSMB->MaxSetupCount = 0;
+ pSMB->Reserved = 0;
+
+ param_count = 8;
+ param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4;
+ data_count = acllen;
+ data_offset = param_offset + param_count;
+ byte_count = 3 /* pad */ + param_count;
+
+ pSMB->DataCount = cpu_to_le32(data_count);
+ pSMB->TotalDataCount = pSMB->DataCount;
+ pSMB->MaxParameterCount = cpu_to_le32(4);
+ pSMB->MaxDataCount = cpu_to_le32(16384);
+ pSMB->ParameterCount = cpu_to_le32(param_count);
+ pSMB->ParameterOffset = cpu_to_le32(param_offset);
+ pSMB->TotalParameterCount = pSMB->ParameterCount;
+ pSMB->DataOffset = cpu_to_le32(data_offset);
+ pSMB->SetupCount = 0;
+ pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC);
+ pSMB->ByteCount = cpu_to_le16(byte_count+data_count);
+
+ pSMB->Fid = fid; /* file handle always le */
+ pSMB->Reserved2 = 0;
+ pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL);
+
+ if (pntsd && acllen) {
+ memcpy((char *) &pSMBr->hdr.Protocol + data_offset,
+ (char *) pntsd,
+ acllen);
+ pSMB->hdr.smb_buf_length += (byte_count + data_count);
+
+ } else
+ pSMB->hdr.smb_buf_length += byte_count;
+
+ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+ (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+
+ cFYI(1, ("SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc));
+ if (rc)
+ cFYI(1, ("Set CIFS ACL returned %d", rc));
+ cifs_buf_release(pSMB);
+
+ if (rc == -EAGAIN)
+ goto setCifsAclRetry;
+
+ return (rc);
+}
+
+#endif /* CONFIG_CIFS_EXPERIMENTAL */
+
/* Legacy Query Path Information call for lookup to old servers such
as Win9x/WinME */
int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
@@ -3164,8 +3277,8 @@ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
FILE_ALL_INFO *pFinfo,
const struct nls_table *nls_codepage, int remap)
{
- QUERY_INFORMATION_REQ * pSMB;
- QUERY_INFORMATION_RSP * pSMBr;
+ QUERY_INFORMATION_REQ *pSMB;
+ QUERY_INFORMATION_RSP *pSMBr;
int rc = 0;
int bytes_returned;
int name_len;
@@ -3197,9 +3310,11 @@ QInfRetry:
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
cFYI(1, ("Send error in QueryInfo = %d", rc));
- } else if (pFinfo) { /* decode response */
+ } else if (pFinfo) {
struct timespec ts;
__u32 time = le32_to_cpu(pSMBr->last_write_time);
+
+ /* decode response */
/* BB FIXME - add time zone adjustment BB */
memset(pFinfo, 0, sizeof(FILE_ALL_INFO));
ts.tv_nsec = 0;
@@ -3234,7 +3349,7 @@ QInfRetry:
int
CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
- FILE_ALL_INFO * pFindData,
+ FILE_ALL_INFO *pFindData,
int legacy /* old style infolevel */,
const struct nls_table *nls_codepage, int remap)
{
@@ -3268,7 +3383,8 @@ QPathInfoRetry:
params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(4000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -3309,10 +3425,12 @@ QPathInfoRetry:
else if (pFindData) {
int size;
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- if (legacy) /* we do not read the last field, EAsize,
- fortunately since it varies by subdialect
- and on Set vs. Get, is two bytes or 4
- bytes depending but we don't care here */
+
+ /* On legacy responses we do not read the last field,
+ EAsize, fortunately since it varies by subdialect and
+ also note it differs on Set vs. Get, ie two bytes or 4
+ bytes depending but we don't care here */
+ if (legacy)
size = sizeof(FILE_INFO_STANDARD);
else
size = sizeof(FILE_ALL_INFO);
@@ -3332,7 +3450,7 @@ QPathInfoRetry:
int
CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
- FILE_UNIX_BASIC_INFO * pFindData,
+ FILE_UNIX_BASIC_INFO *pFindData,
const struct nls_table *nls_codepage, int remap)
{
/* SMB_QUERY_FILE_UNIX_BASIC */
@@ -3395,13 +3513,16 @@ UnixQPathInfoRetry:
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) {
+ cERROR(1, ("Malformed FILE_UNIX_BASIC_INFO response.\n"
+ "Unix Extensions can be disabled on mount "
+ "by specifying the nosfu mount option."));
rc = -EIO; /* bad smb */
} else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
memcpy((char *) pFindData,
(char *) &pSMBr->hdr.Protocol +
data_offset,
- sizeof (FILE_UNIX_BASIC_INFO));
+ sizeof(FILE_UNIX_BASIC_INFO));
}
}
cifs_buf_release(pSMB);
@@ -3411,85 +3532,6 @@ UnixQPathInfoRetry:
return rc;
}
-#if 0 /* function unused at present */
-int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon,
- const char *searchName, FILE_ALL_INFO * findData,
- const struct nls_table *nls_codepage)
-{
-/* level 257 SMB_ */
- TRANSACTION2_FFIRST_REQ *pSMB = NULL;
- TRANSACTION2_FFIRST_RSP *pSMBr = NULL;
- int rc = 0;
- int bytes_returned;
- int name_len;
- __u16 params, byte_count;
-
- cFYI(1, ("In FindUnique"));
-findUniqueRetry:
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
- if (rc)
- return rc;
-
- if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
- cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
- PATH_MAX, nls_codepage);
- name_len++; /* trailing null */
- name_len *= 2;
- } else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(searchName, PATH_MAX);
- name_len++; /* trailing null */
- strncpy(pSMB->FileName, searchName, name_len);
- }
-
- params = 12 + name_len /* includes null */ ;
- pSMB->TotalDataCount = 0; /* no EAs */
- pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
- pSMB->MaxSetupCount = 0;
- pSMB->Reserved = 0;
- pSMB->Flags = 0;
- pSMB->Timeout = 0;
- pSMB->Reserved2 = 0;
- pSMB->ParameterOffset = cpu_to_le16(
- offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4);
- pSMB->DataCount = 0;
- pSMB->DataOffset = 0;
- pSMB->SetupCount = 1; /* one byte, no need to le convert */
- pSMB->Reserved3 = 0;
- pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST);
- byte_count = params + 1 /* pad */ ;
- pSMB->TotalParameterCount = cpu_to_le16(params);
- pSMB->ParameterCount = pSMB->TotalParameterCount;
- pSMB->SearchAttributes =
- cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
- ATTR_DIRECTORY);
- pSMB->SearchCount = cpu_to_le16(16); /* BB increase */
- pSMB->SearchFlags = cpu_to_le16(1);
- pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO);
- pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */
- pSMB->hdr.smb_buf_length += byte_count;
- pSMB->ByteCount = cpu_to_le16(byte_count);
-
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
-
- if (rc) {
- cFYI(1, ("Send error in FindFileDirInfo = %d", rc));
- } else { /* decode response */
- cifs_stats_inc(&tcon->num_ffirst);
- /* BB fill in */
- }
-
- cifs_buf_release(pSMB);
- if (rc == -EAGAIN)
- goto findUniqueRetry;
-
- return rc;
-}
-#endif /* end unused (temporarily) function */
-
/* xid, tcon, searchName and codepage are input parms, rest are returned */
int
CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
@@ -3501,7 +3543,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
/* level 257 SMB_ */
TRANSACTION2_FFIRST_REQ *pSMB = NULL;
TRANSACTION2_FFIRST_RSP *pSMBr = NULL;
- T2_FFIRST_RSP_PARMS * parms;
+ T2_FFIRST_RSP_PARMS *parms;
int rc = 0;
int bytes_returned = 0;
int name_len;
@@ -3597,9 +3639,9 @@ findFirstRetry:
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc == 0) {
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
- psrch_inf->unicode = TRUE;
+ psrch_inf->unicode = true;
else
- psrch_inf->unicode = FALSE;
+ psrch_inf->unicode = false;
psrch_inf->ntwrk_buf_start = (char *)pSMBr;
psrch_inf->smallBuf = 0;
@@ -3610,9 +3652,9 @@ findFirstRetry:
le16_to_cpu(pSMBr->t2.ParameterOffset));
if (parms->EndofSearch)
- psrch_inf->endOfSearch = TRUE;
+ psrch_inf->endOfSearch = true;
else
- psrch_inf->endOfSearch = FALSE;
+ psrch_inf->endOfSearch = false;
psrch_inf->entries_in_buffer =
le16_to_cpu(parms->SearchCount);
@@ -3632,7 +3674,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
{
TRANSACTION2_FNEXT_REQ *pSMB = NULL;
TRANSACTION2_FNEXT_RSP *pSMBr = NULL;
- T2_FNEXT_RSP_PARMS * parms;
+ T2_FNEXT_RSP_PARMS *parms;
char *response_data;
int rc = 0;
int bytes_returned, name_len;
@@ -3640,7 +3682,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
cFYI(1, ("In FindNext"));
- if (psrch_inf->endOfSearch == TRUE)
+ if (psrch_inf->endOfSearch)
return -ENOENT;
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
@@ -3669,7 +3711,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT);
pSMB->SearchHandle = searchHandle; /* always kept as le */
pSMB->SearchCount =
- cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO));
+ cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO));
pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level);
pSMB->ResumeKey = psrch_inf->resume_key;
pSMB->SearchFlags =
@@ -3698,7 +3740,8 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
cifs_stats_inc(&tcon->num_fnext);
if (rc) {
if (rc == -EBADF) {
- psrch_inf->endOfSearch = TRUE;
+ psrch_inf->endOfSearch = true;
+ cifs_buf_release(pSMB);
rc = 0; /* search probably was closed at end of search*/
} else
cFYI(1, ("FindNext returned = %d", rc));
@@ -3708,9 +3751,9 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
if (rc == 0) {
/* BB fixme add lock for file (srch_info) struct here */
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
- psrch_inf->unicode = TRUE;
+ psrch_inf->unicode = true;
else
- psrch_inf->unicode = FALSE;
+ psrch_inf->unicode = false;
response_data = (char *) &pSMBr->hdr.Protocol +
le16_to_cpu(pSMBr->t2.ParameterOffset);
parms = (T2_FNEXT_RSP_PARMS *)response_data;
@@ -3725,9 +3768,9 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
psrch_inf->ntwrk_buf_start = (char *)pSMB;
psrch_inf->smallBuf = 0;
if (parms->EndofSearch)
- psrch_inf->endOfSearch = TRUE;
+ psrch_inf->endOfSearch = true;
else
- psrch_inf->endOfSearch = FALSE;
+ psrch_inf->endOfSearch = false;
psrch_inf->entries_in_buffer =
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry +=
@@ -3771,9 +3814,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon,
pSMB->FileID = searchHandle;
pSMB->ByteCount = 0;
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
- if (rc) {
+ if (rc)
cERROR(1, ("Send error in FindClose = %d", rc));
- }
+
cifs_stats_inc(&tcon->num_fclose);
/* Since session is dead, search handle closed on server already */
@@ -3786,7 +3829,7 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon,
int
CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
- __u64 * inode_number,
+ __u64 *inode_number,
const struct nls_table *nls_codepage, int remap)
{
int rc = 0;
@@ -3876,25 +3919,115 @@ GetInodeNumOut:
return rc;
}
+/* parses DFS refferal V3 structure
+ * caller is responsible for freeing target_nodes
+ * returns:
+ * on success - 0
+ * on failure - errno
+ */
+static int
+parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
+ unsigned int *num_of_nodes,
+ struct dfs_info3_param **target_nodes,
+ const struct nls_table *nls_codepage)
+{
+ int i, rc = 0;
+ char *data_end;
+ bool is_unicode;
+ struct dfs_referral_level_3 *ref;
+
+ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
+ is_unicode = true;
+ else
+ is_unicode = false;
+ *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals);
+
+ if (*num_of_nodes < 1) {
+ cERROR(1, ("num_referrals: must be at least > 0,"
+ "but we get num_referrals = %d\n", *num_of_nodes));
+ rc = -EINVAL;
+ goto parse_DFS_referrals_exit;
+ }
+
+ ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals);
+ if (ref->VersionNumber != cpu_to_le16(3)) {
+ cERROR(1, ("Referrals of V%d version are not supported,"
+ "should be V3", le16_to_cpu(ref->VersionNumber)));
+ rc = -EINVAL;
+ goto parse_DFS_referrals_exit;
+ }
+
+ /* get the upper boundary of the resp buffer */
+ data_end = (char *)(&(pSMBr->PathConsumed)) +
+ le16_to_cpu(pSMBr->t2.DataCount);
+
+ cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n",
+ *num_of_nodes,
+ le16_to_cpu(pSMBr->DFSFlags)));
+
+ *target_nodes = kzalloc(sizeof(struct dfs_info3_param) *
+ *num_of_nodes, GFP_KERNEL);
+ if (*target_nodes == NULL) {
+ cERROR(1, ("Failed to allocate buffer for target_nodes\n"));
+ rc = -ENOMEM;
+ goto parse_DFS_referrals_exit;
+ }
+
+ /* collect neccessary data from referrals */
+ for (i = 0; i < *num_of_nodes; i++) {
+ char *temp;
+ int max_len;
+ struct dfs_info3_param *node = (*target_nodes)+i;
+
+ node->flags = le16_to_cpu(pSMBr->DFSFlags);
+ node->path_consumed = le16_to_cpu(pSMBr->PathConsumed);
+ node->server_type = le16_to_cpu(ref->ServerType);
+ node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags);
+
+ /* copy DfsPath */
+ temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset);
+ max_len = data_end - temp;
+ rc = cifs_strncpy_to_host(&(node->path_name), temp,
+ max_len, is_unicode, nls_codepage);
+ if (rc)
+ goto parse_DFS_referrals_exit;
+
+ /* copy link target UNC */
+ temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset);
+ max_len = data_end - temp;
+ rc = cifs_strncpy_to_host(&(node->node_name), temp,
+ max_len, is_unicode, nls_codepage);
+ if (rc)
+ goto parse_DFS_referrals_exit;
+
+ ref += le16_to_cpu(ref->Size);
+ }
+
+parse_DFS_referrals_exit:
+ if (rc) {
+ free_dfs_info_array(*target_nodes, *num_of_nodes);
+ *target_nodes = NULL;
+ *num_of_nodes = 0;
+ }
+ return rc;
+}
+
int
CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
const unsigned char *searchName,
- unsigned char **targetUNCs,
- unsigned int *number_of_UNC_in_array,
+ struct dfs_info3_param **target_nodes,
+ unsigned int *num_of_nodes,
const struct nls_table *nls_codepage, int remap)
{
/* TRANS2_GET_DFS_REFERRAL */
TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL;
TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL;
- struct dfs_referral_level_3 *referrals = NULL;
int rc = 0;
int bytes_returned;
int name_len;
- unsigned int i;
- char *temp;
__u16 params, byte_count;
- *number_of_UNC_in_array = 0;
- *targetUNCs = NULL;
+ *num_of_nodes = 0;
+ *target_nodes = NULL;
cFYI(1, ("In GetDFSRefer the path %s", searchName));
if (ses == NULL)
@@ -3941,7 +4074,8 @@ getDFSRetry:
pSMB->DataCount = 0;
pSMB->DataOffset = 0;
pSMB->MaxParameterCount = 0;
- pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(4000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -3963,103 +4097,26 @@ getDFSRetry:
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
cFYI(1, ("Send error in GetDFSRefer = %d", rc));
- } else { /* decode response */
-/* BB Add logic to parse referrals here */
- rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ goto GetDFSRefExit;
+ }
+ rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- /* BB Also check if enough total bytes returned? */
- if (rc || (pSMBr->ByteCount < 17))
- rc = -EIO; /* bad smb */
- else {
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount);
+ /* BB Also check if enough total bytes returned? */
+ if (rc || (pSMBr->ByteCount < 17)) {
+ rc = -EIO; /* bad smb */
+ goto GetDFSRefExit;
+ }
- cFYI(1,
- ("Decoding GetDFSRefer response BCC: %d Offset %d",
- pSMBr->ByteCount, data_offset));
- referrals =
- (struct dfs_referral_level_3 *)
- (8 /* sizeof start of data block */ +
- data_offset +
- (char *) &pSMBr->hdr.Protocol);
- cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n"
- "for referral one refer size: 0x%x srv "
- "type: 0x%x refer flags: 0x%x ttl: 0x%x",
- le16_to_cpu(pSMBr->NumberOfReferrals),
- le16_to_cpu(pSMBr->DFSFlags),
- le16_to_cpu(referrals->ReferralSize),
- le16_to_cpu(referrals->ServerType),
- le16_to_cpu(referrals->ReferralFlags),
- le16_to_cpu(referrals->TimeToLive)));
- /* BB This field is actually two bytes in from start of
- data block so we could do safety check that DataBlock
- begins at address of pSMBr->NumberOfReferrals */
- *number_of_UNC_in_array =
- le16_to_cpu(pSMBr->NumberOfReferrals);
-
- /* BB Fix below so can return more than one referral */
- if (*number_of_UNC_in_array > 1)
- *number_of_UNC_in_array = 1;
-
- /* get the length of the strings describing refs */
- name_len = 0;
- for (i = 0; i < *number_of_UNC_in_array; i++) {
- /* make sure that DfsPathOffset not past end */
- __u16 offset =
- le16_to_cpu(referrals->DfsPathOffset);
- if (offset > data_count) {
- /* if invalid referral, stop here and do
- not try to copy any more */
- *number_of_UNC_in_array = i;
- break;
- }
- temp = ((char *)referrals) + offset;
+ cFYI(1, ("Decoding GetDFSRefer response BCC: %d Offset %d",
+ pSMBr->ByteCount,
+ le16_to_cpu(pSMBr->t2.DataOffset)));
- if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len += UniStrnlen((wchar_t *)temp,
- data_count);
- } else {
- name_len += strnlen(temp, data_count);
- }
- referrals++;
- /* BB add check that referral pointer does
- not fall off end PDU */
- }
- /* BB add check for name_len bigger than bcc */
- *targetUNCs =
- kmalloc(name_len+1+(*number_of_UNC_in_array),
- GFP_KERNEL);
- if (*targetUNCs == NULL) {
- rc = -ENOMEM;
- goto GetDFSRefExit;
- }
- /* copy the ref strings */
- referrals = (struct dfs_referral_level_3 *)
- (8 /* sizeof data hdr */ + data_offset +
- (char *) &pSMBr->hdr.Protocol);
-
- for (i = 0; i < *number_of_UNC_in_array; i++) {
- temp = ((char *)referrals) +
- le16_to_cpu(referrals->DfsPathOffset);
- if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
- cifs_strfromUCS_le(*targetUNCs,
- (__le16 *) temp,
- name_len,
- nls_codepage);
- } else {
- strncpy(*targetUNCs, temp, name_len);
- }
- /* BB update target_uncs pointers */
- referrals++;
- }
- temp = *targetUNCs;
- temp[name_len] = 0;
- }
+ /* parse returned result into more usable form */
+ rc = parse_DFS_referrals(pSMBr, num_of_nodes,
+ target_nodes, nls_codepage);
- }
GetDFSRefExit:
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto getDFSRetry;
@@ -4257,7 +4314,8 @@ QFSAttributeRetry:
params = 2; /* level */
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -4326,7 +4384,8 @@ QFSDeviceRetry:
params = 2; /* level */
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -4354,7 +4413,7 @@ QFSDeviceRetry:
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO)))
+ if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO)))
rc = -EIO; /* bad smb */
else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
@@ -4397,7 +4456,8 @@ QFSUnixRetry:
pSMB->DataCount = 0;
pSMB->DataOffset = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(100);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -4472,7 +4532,8 @@ SETFSUnixRetry:
offset = param_offset + params;
pSMB->MaxParameterCount = cpu_to_le16(4);
- pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(100);
pSMB->SetupCount = 1;
pSMB->Reserved3 = 0;
pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION);
@@ -4503,9 +4564,8 @@ SETFSUnixRetry:
cERROR(1, ("Send error in SETFSUnixInfo = %d", rc));
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc) {
+ if (rc)
rc = -EIO; /* bad smb */
- }
}
cifs_buf_release(pSMB);
@@ -4545,7 +4605,8 @@ QFSPosixRetry:
pSMB->DataCount = 0;
pSMB->DataOffset = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(100);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -4615,7 +4676,7 @@ QFSPosixRetry:
int
CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName,
- __u64 size, int SetAllocation,
+ __u64 size, bool SetAllocation,
const struct nls_table *nls_codepage, int remap)
{
struct smb_com_transaction2_spi_req *pSMB = NULL;
@@ -4691,9 +4752,8 @@ SetEOFRetry:
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("SetPathInfo (file size) returned %d", rc));
- }
cifs_buf_release(pSMB);
@@ -4705,7 +4765,7 @@ SetEOFRetry:
int
CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
- __u16 fid, __u32 pid_of_opener, int SetAllocation)
+ __u16 fid, __u32 pid_of_opener, bool SetAllocation)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
char *data_offset;
@@ -4736,7 +4796,8 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
count = sizeof(struct file_end_of_file_info);
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->SetupCount = 1;
pSMB->Reserved3 = 0;
pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
@@ -4790,8 +4851,8 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
time and resort to the original setpathinfo level which takes the ancient
DOS time format with 2 second granularity */
int
-CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
- const FILE_BASIC_INFO *data, __u16 fid)
+CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+ const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
char *data_offset;
@@ -4804,11 +4865,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
if (rc)
return rc;
- /* At this point there is no need to override the current pid
- with the pid of the opener, but that could change if we someday
- use an existing handle (rather than opening one on the fly) */
- /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
- pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/
+ pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+ pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
params = 6;
pSMB->MaxSetupCount = 0;
@@ -4823,7 +4881,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
count = sizeof(FILE_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+ /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->SetupCount = 1;
pSMB->Reserved3 = 0;
pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
@@ -4844,9 +4903,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
pSMB->ByteCount = cpu_to_le16(byte_count);
memcpy(data_offset, data, sizeof(FILE_BASIC_INFO));
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc));
- }
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
@@ -4856,9 +4914,9 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
int
-CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName,
- const FILE_BASIC_INFO *data,
- const struct nls_table *nls_codepage, int remap)
+CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
+ const char *fileName, const FILE_BASIC_INFO *data,
+ const struct nls_table *nls_codepage, int remap)
{
TRANSACTION2_SPI_REQ *pSMB = NULL;
TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -4891,7 +4949,8 @@ SetTimesRetry:
params = 6 + name_len;
count = sizeof(FILE_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -4922,9 +4981,8 @@ SetTimesRetry:
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("SetPathInfo (times) returned %d", rc));
- }
cifs_buf_release(pSMB);
@@ -4974,9 +5032,8 @@ SetAttrLgcyRetry:
pSMB->ByteCount = cpu_to_le16(name_len + 1);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("Error in LegacySetAttr = %d", rc));
- }
cifs_buf_release(pSMB);
@@ -4988,10 +5045,9 @@ SetAttrLgcyRetry:
#endif /* temporarily unneeded SetAttr legacy function */
int
-CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
- char *fileName, __u64 mode, __u64 uid, __u64 gid,
- dev_t device, const struct nls_table *nls_codepage,
- int remap)
+CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
+ const struct cifs_unix_set_info_args *args,
+ const struct nls_table *nls_codepage, int remap)
{
TRANSACTION2_SPI_REQ *pSMB = NULL;
TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5000,6 +5056,7 @@ CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
int bytes_returned = 0;
FILE_UNIX_BASIC_INFO *data_offset;
__u16 params, param_offset, offset, count, byte_count;
+ __u64 mode = args->mode;
cFYI(1, ("In SetUID/GID/Mode"));
setPermsRetry:
@@ -5023,7 +5080,8 @@ setPermsRetry:
params = 6 + name_len;
count = sizeof(FILE_UNIX_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -5054,16 +5112,16 @@ setPermsRetry:
set file size and do not want to truncate file size to zero
accidently as happened on one Samba server beta by putting
zero instead of -1 here */
- data_offset->EndOfFile = NO_CHANGE_64;
- data_offset->NumOfBytes = NO_CHANGE_64;
- data_offset->LastStatusChange = NO_CHANGE_64;
- data_offset->LastAccessTime = NO_CHANGE_64;
- data_offset->LastModificationTime = NO_CHANGE_64;
- data_offset->Uid = cpu_to_le64(uid);
- data_offset->Gid = cpu_to_le64(gid);
+ data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
+ data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
+ data_offset->LastStatusChange = cpu_to_le64(args->ctime);
+ data_offset->LastAccessTime = cpu_to_le64(args->atime);
+ data_offset->LastModificationTime = cpu_to_le64(args->mtime);
+ data_offset->Uid = cpu_to_le64(args->uid);
+ data_offset->Gid = cpu_to_le64(args->gid);
/* better to leave device as zero when it is */
- data_offset->DevMajor = cpu_to_le64(MAJOR(device));
- data_offset->DevMinor = cpu_to_le64(MINOR(device));
+ data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
+ data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
data_offset->Permissions = cpu_to_le64(mode);
if (S_ISREG(mode))
@@ -5085,12 +5143,10 @@ setPermsRetry:
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("SetPathInfo (perms) returned %d", rc));
- }
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto setPermsRetry;
return rc;
@@ -5207,7 +5263,8 @@ QAllEAsRetry:
params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(4000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -5311,8 +5368,7 @@ QAllEAsRetry:
}
}
}
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto QAllEAsRetry;
@@ -5355,7 +5411,8 @@ QEARetry:
params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
+ /* BB find exact max SMB PDU from sess structure BB */
+ pSMB->MaxDataCount = cpu_to_le16(4000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -5460,8 +5517,7 @@ QEARetry:
}
}
}
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto QEARetry;
@@ -5511,9 +5567,10 @@ SetEARetry:
else
name_len = strnlen(ea_name, 255);
- count = sizeof(*parm_data) + ea_value_len + name_len + 1;
+ count = sizeof(*parm_data) + ea_value_len + name_len;
pSMB->MaxParameterCount = cpu_to_le16(2);
- pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */
+ /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
@@ -5562,9 +5619,8 @@ SetEARetry:
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
+ if (rc)
cFYI(1, ("SetPathInfo (EA) returned %d", rc));
- }
cifs_buf_release(pSMB);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b0b4ce0..02bd05c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/connect.c
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -58,8 +58,6 @@
#define sock_create_kern sock_create
#endif
-static DECLARE_COMPLETION(cifsd_complete);
-
extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
unsigned char *p24);
@@ -77,7 +75,7 @@ struct smb_vol {
char *domainname;
char *UNC;
char *UNCip;
- char *in6_addr; /* ipv6 address as human readable form of in6_addr */
+ char *in6_addr; /* ipv6 address as human readable form of in6_addr */
char *iocharset; /* local code page for mapping to and from Unicode */
char source_rfc1001_name[16]; /* netbios name of client */
char target_rfc1001_name[16]; /* netbios name of server for Win9x/ME */
@@ -86,25 +84,27 @@ struct smb_vol {
mode_t file_mode;
mode_t dir_mode;
unsigned secFlg;
- unsigned rw:1;
- unsigned retry:1;
- unsigned intr:1;
- unsigned setuids:1;
- unsigned override_uid:1;
- unsigned override_gid:1;
- unsigned noperm:1;
- unsigned no_psx_acl:1; /* set if posix acl support should be disabled */
- unsigned cifs_acl:1;
- unsigned no_xattr:1; /* set if xattr (EA) support should be disabled*/
- unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
- unsigned direct_io:1;
- unsigned remap:1; /* set to remap seven reserved chars in filenames */
- unsigned posix_paths:1; /* unset to not ask for posix pathnames. */
- unsigned no_linux_ext:1;
- unsigned sfu_emul:1;
- unsigned nullauth:1; /* attempt to authenticate with null user */
- unsigned nocase; /* request case insensitive filenames */
- unsigned nobrl; /* disable sending byte range locks to srv */
+ bool rw:1;
+ bool retry:1;
+ bool intr:1;
+ bool setuids:1;
+ bool override_uid:1;
+ bool override_gid:1;
+ bool dynperm:1;
+ bool noperm:1;
+ bool no_psx_acl:1; /* set if posix acl support should be disabled */
+ bool cifs_acl:1;
+ bool no_xattr:1; /* set if xattr (EA) support should be disabled*/
+ bool server_ino:1; /* use inode numbers from server ie UniqueId */
+ bool direct_io:1;
+ bool remap:1; /* set to remap seven reserved chars in filenames */
+ bool posix_paths:1; /* unset to not ask for posix pathnames. */
+ bool no_linux_ext:1;
+ bool sfu_emul:1;
+ bool nullauth:1; /* attempt to authenticate with null user */
+ bool nocase:1; /* request case insensitive filenames */
+ bool nobrl:1; /* disable sending byte range locks to srv */
+ bool seal:1; /* request transport encryption on share */
unsigned int rsize;
unsigned int wsize;
unsigned int sockopt;
@@ -166,7 +166,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
}
list_for_each(tmp, &GlobalTreeConnectionList) {
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
- if ((tcon) && (tcon->ses) && (tcon->ses->server == server))
+ if ((tcon->ses) && (tcon->ses->server == server))
tcon->tidStatus = CifsNeedReconnect;
}
read_unlock(&GlobalSMBSeslock);
@@ -188,14 +188,12 @@ cifs_reconnect(struct TCP_Server_Info *server)
mid_entry = list_entry(tmp, struct
mid_q_entry,
qhead);
- if (mid_entry) {
- if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
+ if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
/* Mark other intransit requests as needing
retry so we do not immediately mark the
session bad again (ie after we reconnect
below) as they timeout too */
- mid_entry->midState = MID_RETRY_NEEDED;
- }
+ mid_entry->midState = MID_RETRY_NEEDED;
}
}
spin_unlock(&GlobalMid_Lock);
@@ -362,8 +360,8 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
struct task_struct *task_to_wake = NULL;
struct mid_q_entry *mid_entry;
char temp;
- int isLargeBuf = FALSE;
- int isMultiRsp;
+ bool isLargeBuf = false;
+ bool isMultiRsp;
int reconnect;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 8)
mm_segment_t temp_fs;
@@ -376,13 +374,10 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
current->flags |= PF_MEMALLOC;
cFYI(1, ("Demultiplex PID: %d", current->pid));
- write_lock(&GlobalSMBSeslock);
- atomic_inc(&tcpSesAllocCount);
- length = tcpSesAllocCount.counter;
- write_unlock(&GlobalSMBSeslock);
- complete(&cifsd_complete);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 10)
- if (length > 1)
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
+ length = atomic_inc_return(&tcpSesAllocCount);
+ if (length > 1)
mempool_resize(cifs_req_poolp, length + cifs_min_rcv,
GFP_KERNEL);
#endif
@@ -424,8 +419,8 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
} else /* if existing small buf clear beginning */
memset(smallbuf, 0, sizeof(struct smb_hdr));
- isLargeBuf = FALSE;
- isMultiRsp = FALSE;
+ isLargeBuf = false;
+ isMultiRsp = false;
smb_buffer = smallbuf;
iov.iov_base = smb_buffer;
iov.iov_len = 4;
@@ -502,7 +497,7 @@ incomplete_rcv:
/* Note that FC 1001 length is big endian on the wire,
but we convert it here so it is always manipulated
as host byte order */
- pdu_length = ntohl(smb_buffer->smb_buf_length);
+ pdu_length = be32_to_cpu((__force __be32)smb_buffer->smb_buf_length);
smb_buffer->smb_buf_length = pdu_length;
cFYI(1, ("rfc1002 length 0x%x", pdu_length+4));
@@ -562,7 +557,7 @@ incomplete_rcv:
reconnect = 0;
if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) {
- isLargeBuf = TRUE;
+ isLargeBuf = true;
memcpy(bigbuf, smallbuf, 4);
smb_buffer = bigbuf;
}
@@ -632,16 +627,18 @@ incomplete_rcv:
(mid_entry->command == smb_buffer->Command)) {
if (check2ndT2(smb_buffer,server->maxBuf) > 0) {
/* We have a multipart transact2 resp */
- isMultiRsp = TRUE;
+ isMultiRsp = true;
if (mid_entry->resp_buf) {
/* merge response - fix up 1st*/
if (coalesce_t2(smb_buffer,
mid_entry->resp_buf)) {
- mid_entry->multiRsp = 1;
+ mid_entry->multiRsp =
+ true;
break;
} else {
/* all parts received */
- mid_entry->multiEnd = 1;
+ mid_entry->multiEnd =
+ true;
goto multi_t2_fnd;
}
} else {
@@ -653,17 +650,15 @@ incomplete_rcv:
/* Have first buffer */
mid_entry->resp_buf =
smb_buffer;
- mid_entry->largeBuf = 1;
+ mid_entry->largeBuf =
+ true;
bigbuf = NULL;
}
}
break;
}
mid_entry->resp_buf = smb_buffer;
- if (isLargeBuf)
- mid_entry->largeBuf = 1;
- else
- mid_entry->largeBuf = 0;
+ mid_entry->largeBuf = isLargeBuf;
multi_t2_fnd:
task_to_wake = mid_entry->tsk;
mid_entry->midState = MID_RESPONSE_RECEIVED;
@@ -688,8 +683,8 @@ multi_t2_fnd:
smallbuf = NULL;
}
wake_up_process(task_to_wake);
- } else if ((is_valid_oplock_break(smb_buffer, server) == FALSE)
- && (isMultiRsp == FALSE)) {
+ } else if (!is_valid_oplock_break(smb_buffer, server) &&
+ !isMultiRsp) {
cERROR(1, ("No task to wake, unknown frame received! "
"NumMids %d", midCount.counter));
cifs_dump_mem("Received Data is: ", (char *)smb_buffer,
@@ -741,9 +736,8 @@ multi_t2_fnd:
set_fs(temp_fs);
#endif
/* buffer usuallly freed in free_mid - need to free it here on exit */
- if (bigbuf != NULL)
- cifs_buf_release(bigbuf);
- if (smallbuf != NULL)
+ cifs_buf_release(bigbuf);
+ if (smallbuf) /* no sense logging a debug message if NULL */
cifs_small_buf_release(smallbuf);
read_lock(&GlobalSMBSeslock);
@@ -801,14 +795,11 @@ multi_t2_fnd:
coming home not much else we can do but free the memory */
}
- write_lock(&GlobalSMBSeslock);
- atomic_dec(&tcpSesAllocCount);
- length = tcpSesAllocCount.counter;
-
/* last chance to mark ses pointers invalid
if there are any pointing to this (e.g
if a crazy root user tried to kill cifsd
kernel thread explicitly this might happen) */
+ write_lock(&GlobalSMBSeslock);
list_for_each(tmp, &GlobalSMBSessionList) {
ses = list_entry(tmp, struct cifsSesInfo,
cifsSessionList);
@@ -817,8 +808,10 @@ multi_t2_fnd:
}
write_unlock(&GlobalSMBSeslock);
+ kfree(server->hostname);
kfree(server);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
+ length = atomic_dec_return(&tcpSesAllocCount);
if (length > 0)
mempool_resize(cifs_req_poolp, length + cifs_min_rcv,
GFP_KERNEL);
@@ -828,6 +821,34 @@ multi_t2_fnd:
return 0;
}
+/* extract the host portion of the UNC string */
+static char *
+extract_hostname(const char *unc)
+{
+ const char *src;
+ char *dst, *delim;
+ unsigned int len;
+
+ /* skip double chars at beginning of string */
+ /* BB: check validity of these bytes? */
+ src = unc + 2;
+
+ /* delimiter between hostname and sharename is always '\\' now */
+ delim = strchr(src, '\\');
+ if (!delim)
+ return ERR_PTR(-EINVAL);
+
+ len = delim - src;
+ dst = kmalloc((len + 1), GFP_KERNEL);
+ if (dst == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ memcpy(dst, src, len);
+ dst[len] = '\0';
+
+ return dst;
+}
+
static int
cifs_parse_mount_options(char *options, const char *devname,
struct smb_vol *vol)
@@ -865,10 +886,10 @@ cifs_parse_mount_options(char *options, const char *devname,
vol->linux_gid = current->gid;
vol->dir_mode = S_IRWXUGO;
/* 2767 perms indicate mandatory locking support */
- vol->file_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP);
+ vol->file_mode = (S_IRWXUGO | S_ISGID) & (~S_IXGRP);
/* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */
- vol->rw = TRUE;
+ vol->rw = true;
/* default is always to request posix paths. */
vol->posix_paths = 1;
@@ -1224,7 +1245,7 @@ cifs_parse_mount_options(char *options, const char *devname,
} else if (strnicmp(data, "guest", 5) == 0) {
/* ignore */
} else if (strnicmp(data, "rw", 2) == 0) {
- vol->rw = TRUE;
+ vol->rw = true;
} else if ((strnicmp(data, "suid", 4) == 0) ||
(strnicmp(data, "nosuid", 6) == 0) ||
(strnicmp(data, "exec", 4) == 0) ||
@@ -1240,7 +1261,7 @@ cifs_parse_mount_options(char *options, const char *devname,
is ok to just ignore them */
continue;
} else if (strnicmp(data, "ro", 2) == 0) {
- vol->rw = FALSE;
+ vol->rw = false;
} else if (strnicmp(data, "hard", 4) == 0) {
vol->retry = 1;
} else if (strnicmp(data, "soft", 4) == 0) {
@@ -1283,6 +1304,10 @@ cifs_parse_mount_options(char *options, const char *devname,
vol->setuids = 1;
} else if (strnicmp(data, "nosetuids", 9) == 0) {
vol->setuids = 0;
+ } else if (strnicmp(data, "dynperm", 7) == 0) {
+ vol->dynperm = true;
+ } else if (strnicmp(data, "nodynperm", 9) == 0) {
+ vol->dynperm = false;
} else if (strnicmp(data, "nohard", 6) == 0) {
vol->retry = 0;
} else if (strnicmp(data, "nosoft", 6) == 0) {
@@ -1305,8 +1330,12 @@ cifs_parse_mount_options(char *options, const char *devname,
vol->no_psx_acl = 1;
} else if (strnicmp(data, "sign", 4) == 0) {
vol->secFlg |= CIFSSEC_MUST_SIGN;
-/* } else if (strnicmp(data, "seal",4) == 0) {
- vol->secFlg |= CIFSSEC_MUST_SEAL; */
+ } else if (strnicmp(data, "seal", 4) == 0) {
+ /* we do not do the following in secFlags because seal
+ is a per tree connection (mount) not a per socket
+ or per-smb connection option in the protocol */
+ /* vol->secFlg |= CIFSSEC_MUST_SEAL; */
+ vol->seal = 1;
} else if (strnicmp(data, "direct", 6) == 0) {
vol->direct_io = 1;
} else if (strnicmp(data, "forcedirectio", 13) == 0) {
@@ -1348,6 +1377,9 @@ cifs_parse_mount_options(char *options, const char *devname,
"begin with // or \\\\ \n");
return 1;
}
+ value = strpbrk(vol->UNC+2, "/\\");
+ if (value)
+ *value = '\\';
} else {
printk(KERN_WARNING "CIFS: UNC name too long\n");
return 1;
@@ -1361,42 +1393,43 @@ cifs_parse_mount_options(char *options, const char *devname,
static struct cifsSesInfo *
cifs_find_tcp_session(struct in_addr *target_ip_addr,
- struct in6_addr *target_ip6_addr,
- char *userName, struct TCP_Server_Info **psrvTcp)
+ struct in6_addr *target_ip6_addr,
+ char *userName, struct TCP_Server_Info **psrvTcp)
{
struct list_head *tmp;
struct cifsSesInfo *ses;
+
*psrvTcp = NULL;
- read_lock(&GlobalSMBSeslock);
+ read_lock(&GlobalSMBSeslock);
list_for_each(tmp, &GlobalSMBSessionList) {
ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
- if (ses->server) {
- if ((target_ip_addr &&
- (ses->server->addr.sockAddr.sin_addr.s_addr
- == target_ip_addr->s_addr)) || (target_ip6_addr
- && memcmp(&ses->server->addr.sockAddr6.sin6_addr,
- target_ip6_addr, sizeof(*target_ip6_addr)))) {
- /* BB lock server and tcp session and increment
- use count here?? */
-
- /* found a match on the TCP session */
- *psrvTcp = ses->server;
-
- /* BB check if reconnection needed */
- if (strncmp
- (ses->userName, userName,
- MAX_USERNAME_SIZE) == 0){
- read_unlock(&GlobalSMBSeslock);
- /* Found exact match on both TCP and
- SMB sessions */
- return ses;
- }
- }
+ if (!ses->server)
+ continue;
+
+ if (target_ip_addr &&
+ ses->server->addr.sockAddr.sin_addr.s_addr != target_ip_addr->s_addr)
+ continue;
+ else if (target_ip6_addr &&
+ memcmp(&ses->server->addr.sockAddr6.sin6_addr,
+ target_ip6_addr, sizeof(*target_ip6_addr)))
+ continue;
+ /* BB lock server and tcp session; increment use count here?? */
+
+ /* found a match on the TCP session */
+ *psrvTcp = ses->server;
+
+ /* BB check if reconnection needed */
+ if (strncmp(ses->userName, userName, MAX_USERNAME_SIZE) == 0) {
+ read_unlock(&GlobalSMBSeslock);
+ /* Found exact match on both TCP and
+ SMB sessions */
+ return ses;
}
/* else tcp and smb sessions need reconnection */
}
read_unlock(&GlobalSMBSeslock);
+
return NULL;
}
@@ -1405,79 +1438,57 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
{
struct list_head *tmp;
struct cifsTconInfo *tcon;
+ __be32 old_ip;
read_lock(&GlobalSMBSeslock);
+
list_for_each(tmp, &GlobalTreeConnectionList) {
cFYI(1, ("Next tcon"));
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
- if (tcon->ses) {
- if (tcon->ses->server) {
- cFYI(1,
- ("old ip addr: %x == new ip %x ?",
- tcon->ses->server->addr.sockAddr.sin_addr.
- s_addr, new_target_ip_addr));
- if (tcon->ses->server->addr.sockAddr.sin_addr.
- s_addr == new_target_ip_addr) {
- /* BB lock tcon, server and tcp session and increment use count here? */
- /* found a match on the TCP session */
- /* BB check if reconnection needed */
- cFYI(1,
- ("IP match, old UNC: %s new: %s",
- tcon->treeName, uncName));
- if (strncmp
- (tcon->treeName, uncName,
- MAX_TREE_SIZE) == 0) {
- cFYI(1,
- ("and old usr: %s new: %s",
- tcon->treeName, uncName));
- if (strncmp
- (tcon->ses->userName,
- userName,
- MAX_USERNAME_SIZE) == 0) {
- read_unlock(&GlobalSMBSeslock);
- /* matched smb session
- (user name */
- return tcon;
- }
- }
- }
- }
- }
- }
- read_unlock(&GlobalSMBSeslock);
- return NULL;
-}
+ if (!tcon->ses || !tcon->ses->server)
+ continue;
-int
-connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
- const char *old_path, const struct nls_table *nls_codepage,
- int remap)
-{
- unsigned char *referrals = NULL;
- unsigned int num_referrals;
- int rc = 0;
+ old_ip = tcon->ses->server->addr.sockAddr.sin_addr.s_addr;
+ cFYI(1, ("old ip addr: %x == new ip %x ?",
+ old_ip, new_target_ip_addr));
- rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage,
- &num_referrals, &referrals, remap);
+ if (old_ip != new_target_ip_addr)
+ continue;
- /* BB Add in code to: if valid refrl, if not ip address contact
- the helper that resolves tcp names, mount to it, try to
- tcon to it unmount it if fail */
+ /* BB lock tcon, server, tcp session and increment use count? */
+ /* found a match on the TCP session */
+ /* BB check if reconnection needed */
+ cFYI(1, ("IP match, old UNC: %s new: %s",
+ tcon->treeName, uncName));
- kfree(referrals);
+ if (strncmp(tcon->treeName, uncName, MAX_TREE_SIZE))
+ continue;
- return rc;
+ cFYI(1, ("and old usr: %s new: %s",
+ tcon->treeName, uncName));
+
+ if (strncmp(tcon->ses->userName, userName, MAX_USERNAME_SIZE))
+ continue;
+
+ /* matched smb session (user name) */
+ read_unlock(&GlobalSMBSeslock);
+ return tcon;
+ }
+
+ read_unlock(&GlobalSMBSeslock);
+ return NULL;
}
int
get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
const struct nls_table *nls_codepage, unsigned int *pnum_referrals,
- unsigned char **preferrals, int remap)
+ struct dfs_info3_param **preferrals, int remap)
{
char *temp_unc;
int rc = 0;
*pnum_referrals = 0;
+ *preferrals = NULL;
if (pSesInfo->ipc_tid == 0) {
temp_unc = kmalloc(2 /* for slashes */ +
@@ -1499,10 +1510,45 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
if (rc == 0)
rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals,
pnum_referrals, nls_codepage, remap);
+ /* BB map targetUNCs to dfs_info3 structures, here or
+ in CIFSGetDFSRefer BB */
return rc;
}
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static struct lock_class_key cifs_key[2];
+static struct lock_class_key cifs_slock_key[2];
+
+static inline void
+cifs_reclassify_socket4(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+ BUG_ON(sock_owned_by_user(sk));
+ sock_lock_init_class_and_name(sk, "slock-AF_INET-CIFS",
+ &cifs_slock_key[0], "sk_lock-AF_INET-CIFS", &cifs_key[0]);
+}
+
+static inline void
+cifs_reclassify_socket6(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+ BUG_ON(sock_owned_by_user(sk));
+ sock_lock_init_class_and_name(sk, "slock-AF_INET6-CIFS",
+ &cifs_slock_key[1], "sk_lock-AF_INET6-CIFS", &cifs_key[1]);
+}
+#else
+static inline void
+cifs_reclassify_socket4(struct socket *sock)
+{
+}
+
+static inline void
+cifs_reclassify_socket6(struct socket *sock)
+{
+}
+#endif
+
/* See RFC1001 section 14 on representation of Netbios names */
static void rfc1002mangle(char *target, char *source, unsigned int length)
{
@@ -1541,6 +1587,7 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
#else
(*csocket)->sk->allocation = GFP_NOFS;
#endif
+ cifs_reclassify_socket4(*csocket);
}
}
@@ -1548,7 +1595,7 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
if (psin_server->sin_port) { /* user overrode default port */
rc = (*csocket)->ops->connect(*csocket,
(struct sockaddr *) psin_server,
- sizeof (struct sockaddr_in), 0);
+ sizeof(struct sockaddr_in), 0);
if (rc >= 0)
connected = 1;
}
@@ -1564,7 +1611,7 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
rc = (*csocket)->ops->connect(*csocket,
(struct sockaddr *) psin_server,
- sizeof (struct sockaddr_in), 0);
+ sizeof(struct sockaddr_in), 0);
if (rc >= 0)
connected = 1;
}
@@ -1573,7 +1620,7 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
psin_server->sin_port = htons(RFC1001_PORT);
rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
psin_server,
- sizeof (struct sockaddr_in), 0);
+ sizeof(struct sockaddr_in), 0);
if (rc >= 0)
connected = 1;
}
@@ -1688,6 +1735,7 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
#else
(*csocket)->sk->allocation = GFP_NOFS;
#endif
+ cifs_reclassify_socket6(*csocket);
}
}
@@ -1696,7 +1744,7 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
if (psin_server->sin6_port) { /* user overrode default port */
rc = (*csocket)->ops->connect(*csocket,
(struct sockaddr *) psin_server,
- sizeof (struct sockaddr_in6), 0);
+ sizeof(struct sockaddr_in6), 0);
if (rc >= 0)
connected = 1;
}
@@ -1712,7 +1760,7 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
rc = (*csocket)->ops->connect(*csocket,
(struct sockaddr *) psin_server,
- sizeof (struct sockaddr_in6), 0);
+ sizeof(struct sockaddr_in6), 0);
if (rc >= 0)
connected = 1;
}
@@ -1720,7 +1768,7 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
if (!connected) {
psin_server->sin6_port = htons(RFC1001_PORT);
rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
- psin_server, sizeof (struct sockaddr_in6), 0);
+ psin_server, sizeof(struct sockaddr_in6), 0);
if (rc >= 0)
connected = 1;
}
@@ -1784,8 +1832,15 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
originally at mount time */
if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0)
cap &= ~CIFS_UNIX_POSIX_ACL_CAP;
- if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0)
+ if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) {
+ if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP)
+ cERROR(1, ("POSIXPATH support change"));
cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP;
+ } else if ((cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) {
+ cERROR(1, ("possible reconnect error"));
+ cERROR(1,
+ ("server disabled POSIX path support"));
+ }
}
cap &= CIFS_UNIX_CAP_MASK;
@@ -1819,9 +1874,8 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) {
if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) {
CIFS_SB(sb)->rsize = 127 * 1024;
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("larger reads not supported by srv"));
-#endif
+ cFYI(DBG2,
+ ("larger reads not supported by srv"));
}
}
@@ -1844,20 +1898,40 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
cFYI(1, ("very large write cap"));
#endif /* CIFS_DEBUG2 */
if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) {
- if (vol_info == NULL)
+ if (vol_info == NULL) {
cFYI(1, ("resetting capabilities failed"));
- else
+ } else {
cERROR(1, ("Negotiating Unix capabilities "
"with the server failed. Consider "
"mounting with the Unix Extensions\n"
"disabled, if problems are found, "
"by specifying the nounix mount "
"option."));
-
+ }
}
}
}
+static void
+convert_delimiter(char *path, char delim)
+{
+ int i;
+ char old_delim;
+
+ if (path == NULL)
+ return;
+
+ if (delim == '/')
+ old_delim = '\\';
+ else
+ old_delim = '/';
+
+ for (i = 0; path[i] != '\0'; i++) {
+ if (path[i] == old_delim)
+ path[i] = delim;
+ }
+}
+
int
cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
char *mount_data, const char *devname)
@@ -1880,11 +1954,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
memset(&volume_info, 0, sizeof(struct smb_vol));
if (cifs_parse_mount_options(mount_data, devname, &volume_info)) {
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
if (volume_info.nullauth) {
@@ -1897,11 +1968,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifserror("No username specified");
/* In userspace mount helper we can get user name from alternate
locations such as env variables and files on disk */
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
if (volume_info.UNCip && volume_info.UNC) {
@@ -1920,11 +1988,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (rc <= 0) {
/* we failed translating address */
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip));
@@ -1934,20 +1999,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
/* BB using ip addr as server name to connect to the
DFS root below */
cERROR(1, ("Connecting to DFS root not implemented yet"));
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
} else /* which servers DFS root would we conect to */ {
cERROR(1,
("CIFS mount error: No UNC path (e.g. -o "
"unc=//192.168.1.100/public) specified"));
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
/* this is needed for ASCII cp to Unicode converts */
@@ -1959,11 +2018,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (cifs_sb->local_nls == NULL) {
cERROR(1, ("CIFS mount error: iocharset %s not found",
volume_info.iocharset));
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -ELIBACC;
+ rc = -ELIBACC;
+ goto out;
}
}
@@ -1977,11 +2033,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
&sin_server6.sin6_addr,
volume_info.username, &srvTcp);
} else {
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
if (srvTcp) {
@@ -2005,30 +2058,27 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
"Aborting operation"));
if (csocket != NULL)
sock_release(csocket);
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return rc;
+ goto out;
}
- srvTcp = kmalloc(sizeof (struct TCP_Server_Info), GFP_KERNEL);
- if (srvTcp == NULL) {
+ srvTcp = kzalloc(sizeof(struct TCP_Server_Info), GFP_KERNEL);
+ if (!srvTcp) {
rc = -ENOMEM;
sock_release(csocket);
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return rc;
+ goto out;
} else {
- memset(srvTcp, 0, sizeof (struct TCP_Server_Info));
memcpy(&srvTcp->addr.sockAddr, &sin_server,
- sizeof (struct sockaddr_in));
+ sizeof(struct sockaddr_in));
atomic_set(&srvTcp->inFlight, 0);
/* BB Add code for ipv6 case too */
srvTcp->ssocket = csocket;
srvTcp->protocolType = IPV4;
+ srvTcp->hostname = extract_hostname(volume_info.UNC);
+ if (IS_ERR(srvTcp->hostname)) {
+ rc = PTR_ERR(srvTcp->hostname);
+ sock_release(csocket);
+ goto out;
+ }
init_waitqueue_head(&srvTcp->response_q);
init_waitqueue_head(&srvTcp->request_q);
INIT_LIST_HEAD(&srvTcp->pending_mid_q);
@@ -2038,18 +2088,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
srvTcp->tcpStatus = CifsNew;
init_MUTEX(&srvTcp->tcpSem);
srvTcp->tsk = kthread_run((void *)(void *)cifs_demultiplex_thread, srvTcp, "cifsd");
- if ( IS_ERR(srvTcp->tsk) ) {
+ if (IS_ERR(srvTcp->tsk)) {
rc = PTR_ERR(srvTcp->tsk);
cERROR(1, ("error %d create cifsd thread", rc));
srvTcp->tsk = NULL;
sock_release(csocket);
- kfree(volume_info.UNC);
- kfree(volume_info.password);
- kfree(volume_info.prepath);
- FreeXid(xid);
- return rc;
+ kfree(srvTcp->hostname);
+ goto out;
}
- wait_for_completion(&cifsd_complete);
rc = 0;
memcpy(srvTcp->workstation_RFC1001_name,
volume_info.source_rfc1001_name, 16);
@@ -2061,9 +2107,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (existingCifsSes) {
pSesInfo = existingCifsSes;
- cFYI(1, ("Existing smb sess found"));
- kfree(volume_info.password);
- /* volume_info.UNC freed at end of function */
+ cFYI(1, ("Existing smb sess found (status=%d)",
+ pSesInfo->status));
+ down(&pSesInfo->sesSem);
+ if (pSesInfo->status == CifsNeedReconnect) {
+ cFYI(1, ("Session needs reconnect"));
+ rc = cifs_setup_session(xid, pSesInfo,
+ cifs_sb->local_nls);
+ }
+ up(&pSesInfo->sesSem);
} else if (!rc) {
cFYI(1, ("Existing smb sess not found"));
pSesInfo = sesInfoAlloc();
@@ -2077,8 +2129,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if (!rc) {
/* volume_info.password freed at unmount */
- if (volume_info.password)
+ if (volume_info.password) {
pSesInfo->password = volume_info.password;
+ /* set to NULL to prevent freeing on exit */
+ volume_info.password = NULL;
+ }
if (volume_info.username)
strncpy(pSesInfo->userName,
volume_info.username,
@@ -2100,8 +2155,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
up(&pSesInfo->sesSem);
if (!rc)
atomic_inc(&srvTcp->socketUseCount);
- } else
- kfree(volume_info.password);
+ }
}
/* search for existing tcon to this server share */
@@ -2142,7 +2196,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->prepath = volume_info.prepath;
if (cifs_sb->prepath) {
cifs_sb->prepathlen = strlen(cifs_sb->prepath);
- cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb);
+ /* we can not convert the / to \ in the path
+ separators in the prefixpath yet because we do not
+ know (until reset_cifs_unix_caps is called later)
+ whether POSIX PATH CAP is available. We normalize
+ the / to \ after reset_cifs_unix_caps is called */
volume_info.prepath = NULL;
} else
cifs_sb->prepathlen = 0;
@@ -2173,11 +2231,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_UID;
if (volume_info.override_gid)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID;
+ if (volume_info.dynperm)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DYNPERM;
if (volume_info.direct_io) {
cFYI(1, ("mounting share using direct i/o"));
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
}
+ if ((volume_info.cifs_acl) && (volume_info.dynperm))
+ cERROR(1, ("mount option dynperm ignored if cifsacl "
+ "mount option supported"));
+
tcon =
find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
volume_info.username);
@@ -2189,6 +2253,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
for the retry flag is used */
tcon->retry = volume_info.retry;
tcon->nocase = volume_info.nocase;
+ if (tcon->seal != volume_info.seal)
+ cERROR(1, ("transport encryption setting "
+ "conflicts with existing tid"));
} else {
tcon = tconInfoAlloc();
if (tcon == NULL)
@@ -2202,13 +2269,13 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
if ((strchr(volume_info.UNC + 3, '\\') == NULL)
&& (strchr(volume_info.UNC + 3, '/') ==
NULL)) {
- rc = connect_to_dfs_path(xid, pSesInfo,
+/* rc = connect_to_dfs_path(xid, pSesInfo,
"", cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- kfree(volume_info.UNC);
- FreeXid(xid);
- return -ENODEV;
+ CIFS_MOUNT_MAP_SPECIAL_CHR);*/
+ cFYI(1, ("DFS root not supported"));
+ rc = -ENODEV;
+ goto out;
} else {
/* BB Do we need to wrap sesSem around
* this TCon call and Unix SetFS as
@@ -2222,6 +2289,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
atomic_inc(&pSesInfo->inUse);
tcon->retry = volume_info.retry;
tcon->nocase = volume_info.nocase;
+ tcon->seal = volume_info.seal;
}
}
}
@@ -2291,8 +2359,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
tcon->ses = pSesInfo;
/* do not care if following two calls succeed - informational */
- CIFSSMBQFSDeviceInfo(xid, tcon);
- CIFSSMBQFSAttributeInfo(xid, tcon);
+ if (!tcon->ipc) {
+ CIFSSMBQFSDeviceInfo(xid, tcon);
+ CIFSSMBQFSAttributeInfo(xid, tcon);
+ }
/* tell server which Unix caps we support */
if (tcon->ses->capabilities & CAP_UNIX)
@@ -2302,11 +2372,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
else
tcon->unix_ext = 0; /* server does not support them */
+ /* convert forward to back slashes in prepath here if needed */
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) == 0)
+ convert_delimiter(cifs_sb->prepath,
+ CIFS_DIR_SEP(cifs_sb));
+
if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) {
cifs_sb->rsize = 1024 * 127;
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("no very large read support, rsize now 127K"));
-#endif
+ cFYI(DBG2,
+ ("no very large read support, rsize now 127K"));
}
if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X))
cifs_sb->wsize = min(cifs_sb->wsize,
@@ -2322,6 +2396,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
(in which case it is not needed anymore) but when new sesion is created
the password ptr is put in the new session structure (in which case the
password will be freed at unmount time) */
+out:
+ /* zero out password before freeing */
+ if (volume_info.password != NULL) {
+ memset(volume_info.password, 0, strlen(volume_info.password));
+ kfree(volume_info.password);
+ }
kfree(volume_info.UNC);
kfree(volume_info.prepath);
FreeXid(xid);
@@ -2353,9 +2433,10 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
user = ses->userName;
domain = ses->domainName;
smb_buffer = cifs_buf_get();
- if (smb_buffer == NULL) {
+
+ if (smb_buffer == NULL)
return -ENOMEM;
- }
+
smb_buffer_response = smb_buffer;
pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
@@ -2642,15 +2723,14 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
sesssetup_nomem: /* do not return an error on nomem for the info strings,
since that could make reconnection harder, and
reconnection might be needed to free memory */
- if (smb_buffer)
- cifs_buf_release(smb_buffer);
+ cifs_buf_release(smb_buffer);
return rc;
}
static int
CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
- struct cifsSesInfo *ses, int *pNTLMv2_flag,
+ struct cifsSesInfo *ses, bool *pNTLMv2_flag,
const struct nls_table *nls_codepage)
{
struct smb_hdr *smb_buffer;
@@ -2663,7 +2743,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
int remaining_words = 0;
int bytes_returned = 0;
int len;
- int SecurityBlobLength = sizeof (NEGOTIATE_MESSAGE);
+ int SecurityBlobLength = sizeof(NEGOTIATE_MESSAGE);
PNEGOTIATE_MESSAGE SecurityBlob;
PCHALLENGE_MESSAGE SecurityBlob2;
__u32 negotiate_flags, capabilities;
@@ -2673,7 +2753,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
if (ses == NULL)
return -EINVAL;
domain = ses->domainName;
- *pNTLMv2_flag = FALSE;
+ *pNTLMv2_flag = false;
smb_buffer = cifs_buf_get();
if (smb_buffer == NULL) {
return -ENOMEM;
@@ -2836,7 +2916,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
CIFS_CRYPTO_KEY_SIZE);
if (SecurityBlob2->NegotiateFlags &
cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
- *pNTLMv2_flag = TRUE;
+ *pNTLMv2_flag = true;
if ((SecurityBlob2->NegotiateFlags &
cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN))
@@ -2991,15 +3071,14 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
rc = -EIO;
}
- if (smb_buffer)
- cifs_buf_release(smb_buffer);
+ cifs_buf_release(smb_buffer);
return rc;
}
static int
CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
- char *ntlm_session_key, int ntlmv2_flag,
- const struct nls_table *nls_codepage)
+ char *ntlm_session_key, bool ntlmv2_flag,
+ const struct nls_table *nls_codepage)
{
struct smb_hdr *smb_buffer;
struct smb_hdr *smb_buffer_response;
@@ -3012,7 +3091,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
int remaining_words = 0;
int bytes_returned = 0;
int len;
- int SecurityBlobLength = sizeof (AUTHENTICATE_MESSAGE);
+ int SecurityBlobLength = sizeof(AUTHENTICATE_MESSAGE);
PAUTHENTICATE_MESSAGE SecurityBlob;
__u32 negotiate_flags, capabilities;
__u16 count;
@@ -3027,8 +3106,8 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
return -ENOMEM;
}
smb_buffer_response = smb_buffer;
- pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
- pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
+ pSMB = (SESSION_SETUP_ANDX *)smb_buffer;
+ pSMBr = (SESSION_SETUP_ANDX *)smb_buffer_response;
/* send SMBsessionSetup here */
header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
@@ -3047,7 +3126,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
- CAP_EXTENDED_SECURITY;
+ CAP_EXTENDED_SECURITY;
if (ses->capabilities & CAP_UNICODE) {
smb_buffer->Flags2 |= SMBFLG2_UNICODE;
capabilities |= CAP_UNICODE;
@@ -3062,15 +3141,14 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
}
pSMB->req.Capabilities = cpu_to_le32(capabilities);
- bcc_ptr = (char *) &pSMB->req.SecurityBlob;
- SecurityBlob = (PAUTHENTICATE_MESSAGE) bcc_ptr;
+ bcc_ptr = (char *)&pSMB->req.SecurityBlob;
+ SecurityBlob = (PAUTHENTICATE_MESSAGE)bcc_ptr;
strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
SecurityBlob->MessageType = NtLmAuthenticate;
bcc_ptr += SecurityBlobLength;
- negotiate_flags =
- NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
- NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
- 0x80000000 | NTLMSSP_NEGOTIATE_128;
+ negotiate_flags = NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
+ NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
+ 0x80000000 | NTLMSSP_NEGOTIATE_128;
if (sign_CIFS_PDUs)
negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN;
if (ntlmv2_flag)
@@ -3231,12 +3309,11 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
&bytes_returned, CIFS_LONG_OP);
if (rc) {
-/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
- } else if ((smb_buffer_response->WordCount == 3)
- || (smb_buffer_response->WordCount == 4)) {
+/* rc = map_smb_to_linux_error(smb_buffer_response) done in SendReceive now */
+ } else if ((smb_buffer_response->WordCount == 3) ||
+ (smb_buffer_response->WordCount == 4)) {
__u16 action = le16_to_cpu(pSMBr->resp.Action);
- __u16 blob_len =
- le16_to_cpu(pSMBr->resp.SecurityBlobLength);
+ __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
if (action & GUEST_LOGIN)
cFYI(1, (" Guest login")); /* BB Should we set anything
in SesInfo struct ? */
@@ -3390,28 +3467,24 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
bcc_ptr[0] = 0;
bcc_ptr++;
} else
- cFYI(1,
- ("field of length %d "
+ cFYI(1, ("field of length %d "
"extends beyond end of smb ",
len));
}
} else {
- cERROR(1,
- (" Security Blob extends beyond end "
+ cERROR(1, ("Security Blob extends beyond end "
"of SMB"));
}
} else {
cERROR(1, ("No session structure passed in."));
}
} else {
- cERROR(1,
- (" Invalid Word count %d: ",
+ cERROR(1, ("Invalid Word count %d: ",
smb_buffer_response->WordCount));
rc = -EIO;
}
- if (smb_buffer)
- cifs_buf_release(smb_buffer);
+ cifs_buf_release(smb_buffer);
return rc;
}
@@ -3521,6 +3594,18 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
bcc_ptr = pByteArea(smb_buffer_response);
length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2);
/* skip service field (NB: this field is always ASCII) */
+ if (length == 3) {
+ if ((bcc_ptr[0] == 'I') && (bcc_ptr[1] == 'P') &&
+ (bcc_ptr[2] == 'C')) {
+ cFYI(1, ("IPC connection"));
+ tcon->ipc = 1;
+ }
+ } else if (length == 2) {
+ if ((bcc_ptr[0] == 'A') && (bcc_ptr[1] == ':')) {
+ /* the most common case */
+ cFYI(1, ("disk share connection"));
+ }
+ }
bcc_ptr += length + 1;
strncpy(tcon->treeName, tree, MAX_TREE_SIZE);
if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
@@ -3568,8 +3653,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
ses->ipc_tid = smb_buffer_response->Tid;
}
- if (smb_buffer)
- cifs_buf_release(smb_buffer);
+ cifs_buf_release(smb_buffer);
return rc;
}
@@ -3591,6 +3675,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
FreeXid(xid);
return 0;
}
+ DeleteTconOplockQEntries(cifs_sb->tcon);
tconInfoFree(cifs_sb->tcon);
if ((ses) && (ses->server)) {
/* save off task so we do not refer to ses later */
@@ -3619,17 +3704,10 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
cifs_sb->prepath = NULL;
kfree(tmp);
if (ses)
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(HZ / 2);
-#else
- schedule_timeout_interruptible(msecs_to_jiffies(500));
-#endif
- if (ses)
sesInfoFree(ses);
FreeXid(xid);
- return rc; /* BB check if we should always return zero here */
+ return rc;
}
int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
@@ -3637,21 +3715,23 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
{
int rc = 0;
char ntlm_session_key[CIFS_SESS_KEY_SIZE];
- int ntlmv2_flag = FALSE;
+ bool ntlmv2_flag = false;
int first_time = 0;
+ struct TCP_Server_Info *server = pSesInfo->server;
/* what if server changes its buffer size after dropping the session? */
- if (pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ {
+ if (server->maxBuf == 0) /* no need to send on reconnect */ {
rc = CIFSSMBNegotiate(xid, pSesInfo);
- if (rc == -EAGAIN) /* retry only once on 1st time connection */ {
+ if (rc == -EAGAIN) {
+ /* retry only once on 1st time connection */
rc = CIFSSMBNegotiate(xid, pSesInfo);
if (rc == -EAGAIN)
rc = -EHOSTDOWN;
}
if (rc == 0) {
spin_lock(&GlobalMid_Lock);
- if (pSesInfo->server->tcpStatus != CifsExiting)
- pSesInfo->server->tcpStatus = CifsGood;
+ if (server->tcpStatus != CifsExiting)
+ server->tcpStatus = CifsGood;
else
rc = -EHOSTDOWN;
spin_unlock(&GlobalMid_Lock);
@@ -3659,97 +3739,90 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
}
first_time = 1;
}
- if (!rc) {
- pSesInfo->flags = 0;
- pSesInfo->capabilities = pSesInfo->server->capabilities;
- if (linuxExtEnabled == 0)
- pSesInfo->capabilities &= (~CAP_UNIX);
+
+ if (rc)
+ goto ss_err_exit;
+
+ pSesInfo->flags = 0;
+ pSesInfo->capabilities = server->capabilities;
+ if (linuxExtEnabled == 0)
+ pSesInfo->capabilities &= (~CAP_UNIX);
/* pSesInfo->sequence_number = 0;*/
- cFYI(1,
- ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
- pSesInfo->server->secMode,
- pSesInfo->server->capabilities,
- pSesInfo->server->timeAdj));
- if (experimEnabled < 2)
- rc = CIFS_SessSetup(xid, pSesInfo,
- first_time, nls_info);
- else if (extended_security
- && (pSesInfo->capabilities
- & CAP_EXTENDED_SECURITY)
- && (pSesInfo->server->secType == NTLMSSP)) {
- rc = -EOPNOTSUPP;
- } else if (extended_security
- && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
- && (pSesInfo->server->secType == RawNTLMSSP)) {
- cFYI(1, ("NTLMSSP sesssetup"));
- rc = CIFSNTLMSSPNegotiateSessSetup(xid,
- pSesInfo,
- &ntlmv2_flag,
- nls_info);
- if (!rc) {
- if (ntlmv2_flag) {
- char *v2_response;
- cFYI(1, ("more secure NTLM ver2 hash"));
- if (CalcNTLMv2_partial_mac_key(pSesInfo,
- nls_info)) {
- rc = -ENOMEM;
- goto ss_err_exit;
- } else
- v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL);
- if (v2_response) {
- CalcNTLMv2_response(pSesInfo,
- v2_response);
- /* if (first_time)
- cifs_calculate_ntlmv2_mac_key(
- pSesInfo->server->mac_signing_key,
- response, ntlm_session_key,*/
- kfree(v2_response);
+ cFYI(1, ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
+ server->secMode, server->capabilities, server->timeAdj));
+
+ if (experimEnabled < 2)
+ rc = CIFS_SessSetup(xid, pSesInfo, first_time, nls_info);
+ else if (extended_security
+ && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+ && (server->secType == NTLMSSP)) {
+ rc = -EOPNOTSUPP;
+ } else if (extended_security
+ && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+ && (server->secType == RawNTLMSSP)) {
+ cFYI(1, ("NTLMSSP sesssetup"));
+ rc = CIFSNTLMSSPNegotiateSessSetup(xid, pSesInfo, &ntlmv2_flag,
+ nls_info);
+ if (!rc) {
+ if (ntlmv2_flag) {
+ char *v2_response;
+ cFYI(1, ("more secure NTLM ver2 hash"));
+ if (CalcNTLMv2_partial_mac_key(pSesInfo,
+ nls_info)) {
+ rc = -ENOMEM;
+ goto ss_err_exit;
+ } else
+ v2_response = kmalloc(16 + 64 /* blob*/,
+ GFP_KERNEL);
+ if (v2_response) {
+ CalcNTLMv2_response(pSesInfo,
+ v2_response);
+ /* if (first_time)
+ cifs_calculate_ntlmv2_mac_key */
+ kfree(v2_response);
/* BB Put dummy sig in SessSetup PDU? */
- } else {
- rc = -ENOMEM;
- goto ss_err_exit;
- }
-
} else {
- SMBNTencrypt(pSesInfo->password,
- pSesInfo->server->cryptKey,
- ntlm_session_key);
-
- if (first_time)
- cifs_calculate_mac_key(
- &pSesInfo->server->mac_signing_key,
- ntlm_session_key,
- pSesInfo->password);
+ rc = -ENOMEM;
+ goto ss_err_exit;
}
+
+ } else {
+ SMBNTencrypt(pSesInfo->password,
+ server->cryptKey,
+ ntlm_session_key);
+
+ if (first_time)
+ cifs_calculate_mac_key(
+ &server->mac_signing_key,
+ ntlm_session_key,
+ pSesInfo->password);
+ }
/* for better security the weaker lanman hash not sent
in AuthSessSetup so we no longer calculate it */
- rc = CIFSNTLMSSPAuthSessSetup(xid,
- pSesInfo,
- ntlm_session_key,
- ntlmv2_flag,
- nls_info);
- }
- } else { /* old style NTLM 0.12 session setup */
- SMBNTencrypt(pSesInfo->password,
- pSesInfo->server->cryptKey,
- ntlm_session_key);
+ rc = CIFSNTLMSSPAuthSessSetup(xid, pSesInfo,
+ ntlm_session_key,
+ ntlmv2_flag,
+ nls_info);
+ }
+ } else { /* old style NTLM 0.12 session setup */
+ SMBNTencrypt(pSesInfo->password, server->cryptKey,
+ ntlm_session_key);
- if (first_time)
- cifs_calculate_mac_key(
- &pSesInfo->server->mac_signing_key,
- ntlm_session_key, pSesInfo->password);
+ if (first_time)
+ cifs_calculate_mac_key(&server->mac_signing_key,
+ ntlm_session_key,
+ pSesInfo->password);
- rc = CIFSSessSetup(xid, pSesInfo,
- ntlm_session_key, nls_info);
- }
- if (rc) {
- cERROR(1, ("Send error in SessSetup = %d", rc));
- } else {
- cFYI(1, ("CIFS Session Established successfully"));
+ rc = CIFSSessSetup(xid, pSesInfo, ntlm_session_key, nls_info);
+ }
+ if (rc) {
+ cERROR(1, ("Send error in SessSetup = %d", rc));
+ } else {
+ cFYI(1, ("CIFS Session Established successfully"));
pSesInfo->status = CifsGood;
- }
}
+
ss_err_exit:
return rc;
}
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 6671ade..638dd00 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -3,7 +3,7 @@
*
* vfs operations that deal with dentries
*
- * Copyright (C) International Business Machines Corp., 2002,2005
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -55,18 +55,25 @@ build_path_from_dentry(struct dentry *direntry)
struct dentry *temp;
int namelen;
int pplen;
+ int dfsplen;
char *full_path;
char dirsep;
+ struct cifs_sb_info *cifs_sb;
if (direntry == NULL)
return NULL; /* not much we can do if dentry is freed and
we need to reopen the file after it was closed implicitly
when the server crashed */
- dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
- pplen = CIFS_SB(direntry->d_sb)->prepathlen;
+ cifs_sb = CIFS_SB(direntry->d_sb);
+ dirsep = CIFS_DIR_SEP(cifs_sb);
+ pplen = cifs_sb->prepathlen;
+ if (cifs_sb->tcon && (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS))
+ dfsplen = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE + 1);
+ else
+ dfsplen = 0;
cifs_bp_rename_retry:
- namelen = pplen;
+ namelen = pplen + dfsplen;
for (temp = direntry; !IS_ROOT(temp);) {
namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
@@ -97,7 +104,7 @@ cifs_bp_rename_retry:
return NULL;
}
}
- if (namelen != pplen) {
+ if (namelen != pplen + dfsplen) {
cERROR(1,
("did not end path lookup where expected namelen is %d",
namelen));
@@ -113,20 +120,21 @@ cifs_bp_rename_retry:
since the '\' is a valid posix character so we can not switch
those safely to '/' if any are found in the middle of the prepath */
/* BB test paths to Windows with '/' in the midst of prepath */
- strncpy(full_path, CIFS_SB(direntry->d_sb)->prepath, pplen);
+
+ if (dfsplen) {
+ strncpy(full_path, cifs_sb->tcon->treeName, dfsplen);
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
+ int i;
+ for (i = 0; i < dfsplen; i++) {
+ if (full_path[i] == '\\')
+ full_path[i] = '/';
+ }
+ }
+ }
+ strncpy(full_path + dfsplen, CIFS_SB(direntry->d_sb)->prepath, pplen);
return full_path;
}
-/* char * build_wildcard_path_from_dentry(struct dentry *direntry)
-{
- if(full_path == NULL)
- return full_path;
-
- full_path[namelen] = '\\';
- full_path[namelen+1] = '*';
- full_path[namelen+2] = 0;
-BB remove above eight lines BB */
-
/* Inode operations in similar order to how they appear in Linux file fs.h */
int
@@ -139,6 +147,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
{
int rc = -ENOENT;
int xid;
+ int create_options = CREATE_NOT_DIR;
int oplock = 0;
int desiredAccess = GENERIC_READ | GENERIC_WRITE;
__u16 fileHandle;
@@ -150,10 +159,9 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
struct cifsFileInfo *pCifsFile = NULL;
struct cifsInodeInfo *pCifsInode;
- int write_only = FALSE;
+ bool write_only = false;
#endif
int disposition = FILE_OVERWRITE_IF;
-
xid = GetXid();
cifs_sb = CIFS_SB(inode->i_sb);
@@ -179,7 +187,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
if (oflags & FMODE_WRITE) {
desiredAccess |= GENERIC_WRITE;
if (!(oflags & FMODE_READ))
- write_only = TRUE;
+ write_only = true;
}
if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
@@ -188,9 +196,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
disposition = FILE_OVERWRITE_IF;
else if ((oflags & O_CREAT) == O_CREAT)
disposition = FILE_OPEN_IF;
- else {
+ else
cFYI(1, ("Create flag not set in create function"));
- }
}
/* BB add processing to set equivalent of mode - e.g. via CreateX with
@@ -207,9 +214,19 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
FreeXid(xid);
return -ENOMEM;
}
+
+ mode &= ~current->fs->umask;
+
+ /*
+ * if we're not using unix extensions, see if we need to set
+ * ATTR_READONLY on the create call
+ */
+ if (!pTcon->unix_ext && (mode & S_IWUGO) == 0)
+ create_options |= CREATE_OPTION_READONLY;
+
if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
- desiredAccess, CREATE_NOT_DIR,
+ desiredAccess, create_options,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
else
@@ -218,7 +235,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
if (rc == -EIO) {
/* old server, retry the open legacy style */
rc = SMBLegacyOpen(xid, pTcon, full_path, disposition,
- desiredAccess, CREATE_NOT_DIR,
+ desiredAccess, create_options,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
@@ -228,24 +245,28 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
/* If Open reported that we actually created a file
then we now have to set the mode if possible */
if ((pTcon->unix_ext) && (oplock & CIFS_CREATE_ACTION)) {
- mode &= ~current->fs->umask;
+ struct cifs_unix_set_info_args args = {
+ .mode = mode,
+ .ctime = NO_CHANGE_64,
+ .atime = NO_CHANGE_64,
+ .mtime = NO_CHANGE_64,
+ .device = 0,
+ };
+
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
- CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
- (__u64)current->fsuid,
- (__u64)current->fsgid,
- 0 /* dev */,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ args.uid = (__u64) current->fsuid;
+ if (inode->i_mode & S_ISGID)
+ args.gid = (__u64) inode->i_gid;
+ else
+ args.gid = (__u64) current->fsgid;
} else {
- CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
- (__u64)-1,
- (__u64)-1,
- 0 /* dev */,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ args.uid = NO_CHANGE_64;
+ args.gid = NO_CHANGE_64;
}
+ CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
/* BB implement mode setting via Windows security
descriptors e.g. */
@@ -260,14 +281,22 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
inode->i_sb, xid);
else {
rc = cifs_get_inode_info(&newinode, full_path,
- buf, inode->i_sb, xid);
+ buf, inode->i_sb, xid,
+ &fileHandle);
if (newinode) {
- newinode->i_mode = mode;
+ if (cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_DYNPERM)
+ newinode->i_mode = mode;
if ((oplock & CIFS_CREATE_ACTION) &&
(cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_SET_UID)) {
newinode->i_uid = current->fsuid;
- newinode->i_gid = current->fsgid;
+ if (inode->i_mode & S_ISGID)
+ newinode->i_gid =
+ inode->i_gid;
+ else
+ newinode->i_gid =
+ current->fsgid;
}
}
}
@@ -285,20 +314,20 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
}
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
if ((nd == NULL /* nfsd case - nfs srv does not set nd */) ||
- ((nd->flags & LOOKUP_OPEN) == FALSE)) {
+ (!(nd->flags & LOOKUP_OPEN))) {
/* mknod case - do not leave file open */
CIFSSMBClose(xid, pTcon, fileHandle);
} else if (newinode) {
pCifsFile =
- kzalloc(sizeof (struct cifsFileInfo), GFP_KERNEL);
+ kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
if (pCifsFile == NULL)
goto cifs_create_out;
pCifsFile->netfid = fileHandle;
pCifsFile->pid = current->tgid;
pCifsFile->pInode = newinode;
- pCifsFile->invalidHandle = FALSE;
- pCifsFile->closePend = FALSE;
+ pCifsFile->invalidHandle = false;
+ pCifsFile->closePend = false;
init_MUTEX(&pCifsFile->fh_sem);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)
mutex_init(&pCifsFile->lock_mutex);
@@ -315,7 +344,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
pCifsInode = CIFS_I(newinode);
if (pCifsInode) {
/* if readable file instance put first in list*/
- if (write_only == TRUE) {
+ if (write_only) {
list_add_tail(&pCifsFile->flist,
&pCifsInode->openFileList);
} else {
@@ -323,12 +352,12 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode)
&pCifsInode->openFileList);
}
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
- pCifsInode->clientCanCacheAll = TRUE;
- pCifsInode->clientCanCacheRead = TRUE;
+ pCifsInode->clientCanCacheAll = true;
+ pCifsInode->clientCanCacheRead = true;
cFYI(1, ("Exclusive Oplock inode %p",
newinode));
} else if ((oplock & 0xF) == OPLOCK_READ)
- pCifsInode->clientCanCacheRead = TRUE;
+ pCifsInode->clientCanCacheRead = true;
}
write_unlock(&GlobalSMBSeslock);
}
@@ -372,21 +401,24 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, int devic
if (full_path == NULL)
rc = -ENOMEM;
else if (pTcon->unix_ext) {
- mode &= ~current->fs->umask;
+ struct cifs_unix_set_info_args args = {
+ .mode = mode & ~current->fs->umask,
+ .ctime = NO_CHANGE_64,
+ .atime = NO_CHANGE_64,
+ .mtime = NO_CHANGE_64,
+ .device = device_number,
+ };
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
- rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path,
- mode, (__u64)current->fsuid,
- (__u64)current->fsgid,
- device_number, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ args.uid = (__u64) current->fsuid;
+ args.gid = (__u64) current->fsgid;
} else {
- rc = CIFSSMBUnixSetPerms(xid, pTcon,
- full_path, mode, (__u64)-1, (__u64)-1,
- device_number, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ args.uid = NO_CHANGE_64;
+ args.gid = NO_CHANGE_64;
}
+ rc = CIFSSMBUnixSetInfo(xid, pTcon, full_path,
+ &args, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
if (!rc) {
rc = cifs_get_inode_info_unix(&newinode, full_path,
@@ -402,7 +434,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, int devic
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
int oplock = 0;
u16 fileHandle;
- FILE_ALL_INFO * buf;
+ FILE_ALL_INFO *buf;
cFYI(1, ("sfu compat create special file"));
@@ -489,8 +521,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry)
xid = GetXid();
- cFYI(1,
- (" parent inode = 0x%p name is: %s and dentry = 0x%p",
+ cFYI(1, (" parent inode = 0x%p name is: %s and dentry = 0x%p",
parent_dir_inode, direntry->d_name.name, direntry));
/* check whether path exists */
@@ -534,7 +565,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry)
parent_dir_inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newInode, full_path, NULL,
- parent_dir_inode->i_sb, xid);
+ parent_dir_inode->i_sb, xid, NULL);
if ((rc == 0) && (newInode != NULL)) {
if (pTcon->nocase)
@@ -557,12 +588,10 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry)
d_add(direntry, NULL);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
- } else {
- cERROR(1, ("Error 0x%x on cifs_get_inode_info in lookup of %s",
- rc, full_path));
- /* BB special case check for Access Denied - watch security
- exposure of returning dir info implicitly via different rc
- if file exists or not but no access BB */
+ } else if (rc != -EACCES) {
+ cERROR(1, ("Unexpected lookup error %d", rc));
+ /* We special case check for Access Denied - since that
+ is a common return code */
}
kfree(full_path);
@@ -581,9 +610,8 @@ cifs_d_revalidate(struct dentry *direntry, int flags)
int isValid = 1;
if (direntry->d_inode) {
- if (cifs_revalidate(direntry)) {
+ if (cifs_revalidate(direntry))
return 0;
- }
} else {
cFYI(1, ("neg dentry 0x%p name = %s",
direntry, direntry->d_name.name));
@@ -642,7 +670,7 @@ static int cifs_ci_compare(struct dentry *dentry, struct qstr *a,
* case take precedence. If a is not a negative dentry, this
* should have no side effects
*/
- memcpy((unsigned char *)a->name, b->name, a->len);
+ memcpy((void *)a->name, b->name, a->len);
return 0;
}
return 1;
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
new file mode 100644
index 0000000..a2e0673
--- /dev/null
+++ b/fs/cifs/dns_resolve.c
@@ -0,0 +1,174 @@
+/*
+ * fs/cifs/dns_resolve.c
+ *
+ * Copyright (c) 2007 Igor Mammedov
+ * Author(s): Igor Mammedov (niallain@gmail.com)
+ * Steve French (sfrench@us.ibm.com)
+ *
+ * Contains the CIFS DFS upcall routines used for hostname to
+ * IP address translation.
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <keys/user-type.h>
+#include "dns_resolve.h"
+#include "cifsglob.h"
+#include "cifsproto.h"
+#include "cifs_debug.h"
+
+static int dns_resolver_instantiate(struct key *key, const void *data,
+ size_t datalen)
+{
+ int rc = 0;
+ char *ip;
+
+ ip = kmalloc(datalen+1, GFP_KERNEL);
+ if (!ip)
+ return -ENOMEM;
+
+ memcpy(ip, data, datalen);
+ ip[datalen] = '\0';
+
+ rcu_assign_pointer(key->payload.data, ip);
+
+ return rc;
+}
+
+static void
+dns_resolver_destroy(struct key *key)
+{
+ kfree(key->payload.data);
+}
+
+struct key_type key_type_dns_resolver = {
+ .name = "dns_resolver",
+ .def_datalen = sizeof(struct in_addr),
+ .describe = user_describe,
+ .instantiate = dns_resolver_instantiate,
+ .destroy = dns_resolver_destroy,
+ .match = user_match,
+};
+
+/* Checks if supplied name is IP address
+ * returns:
+ * 1 - name is IP
+ * 0 - name is not IP
+ */
+static int is_ip(const char *name)
+{
+ int rc;
+ struct sockaddr_in sin_server;
+ struct sockaddr_in6 sin_server6;
+
+ rc = cifs_inet_pton(AF_INET, name,
+ &sin_server.sin_addr.s_addr);
+
+ if (rc <= 0) {
+ /* not ipv4 address, try ipv6 */
+ rc = cifs_inet_pton(AF_INET6, name,
+ &sin_server6.sin6_addr.in6_u);
+ if (rc > 0)
+ return 1;
+ } else {
+ return 1;
+ }
+ /* we failed translating address */
+ return 0;
+}
+
+/* Resolves server name to ip address.
+ * input:
+ * unc - server UNC
+ * output:
+ * *ip_addr - pointer to server ip, caller responcible for freeing it.
+ * return 0 on success
+ */
+int
+dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
+{
+ int rc = -EAGAIN;
+ struct key *rkey = ERR_PTR(-EAGAIN);
+ char *name;
+ char *data = NULL;
+ int len;
+
+ if (!ip_addr || !unc)
+ return -EINVAL;
+
+ /* search for server name delimiter */
+ len = strlen(unc);
+ if (len < 3) {
+ cFYI(1, ("%s: unc is too short: %s", __func__, unc));
+ return -EINVAL;
+ }
+ len -= 2;
+ name = memchr(unc+2, '\\', len);
+ if (!name) {
+ cFYI(1, ("%s: probably server name is whole unc: %s",
+ __func__, unc));
+ } else {
+ len = (name - unc) - 2/* leading // */;
+ }
+
+ name = kmalloc(len+1, GFP_KERNEL);
+ if (!name) {
+ rc = -ENOMEM;
+ return rc;
+ }
+ memcpy(name, unc+2, len);
+ name[len] = 0;
+
+ if (is_ip(name)) {
+ cFYI(1, ("%s: it is IP, skipping dns upcall: %s",
+ __func__, name));
+ data = name;
+ goto skip_upcall;
+ }
+
+ rkey = request_key(&key_type_dns_resolver, name, "");
+ if (!IS_ERR(rkey)) {
+ data = rkey->payload.data;
+ } else {
+ cERROR(1, ("%s: unable to resolve: %s", __func__, name));
+ goto out;
+ }
+
+skip_upcall:
+ if (data) {
+ len = strlen(data);
+ *ip_addr = kmalloc(len+1, GFP_KERNEL);
+ if (*ip_addr) {
+ memcpy(*ip_addr, data, len);
+ (*ip_addr)[len] = '\0';
+ if (!IS_ERR(rkey))
+ cFYI(1, ("%s: resolved: %s to %s", __func__,
+ name,
+ *ip_addr
+ ));
+ rc = 0;
+ } else {
+ rc = -ENOMEM;
+ }
+ if (!IS_ERR(rkey))
+ key_put(rkey);
+ }
+
+out:
+ kfree(name);
+ return rc;
+}
+
+
diff --git a/fs/cifs/dns_resolve.h b/fs/cifs/dns_resolve.h
new file mode 100644
index 0000000..85aeac6
--- /dev/null
+++ b/fs/cifs/dns_resolve.h
@@ -0,0 +1,32 @@
+/*
+ * fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS
+ * Handles host name to IP address resolution
+ *
+ * Copyright (c) International Business Machines Corp., 2008
+ * Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _DNS_RESOLVE_H
+#define _DNS_RESOLVE_H
+
+#ifdef __KERNEL__
+#include <linux/key.h>
+extern struct key_type key_type_dns_resolver;
+extern int dns_resolve_server_name_to_ip(const char *unc, char **ip_addr);
+#endif /* KERNEL */
+
+#endif /* _DNS_RESOLVE_H */
diff --git a/fs/cifs/export.c b/fs/cifs/export.c
index 2a3f515..bbac3df 100644
--- a/fs/cifs/export.c
+++ b/fs/cifs/export.c
@@ -42,6 +42,7 @@
#include <linux/fs.h>
#include "cifsglob.h"
#include "cifs_debug.h"
+#include "cifsfs.h"
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)
#include <linux/exportfs.h>
#endif
diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c
index 5093758..fda836b 100644
--- a/fs/cifs/fcntl.c
+++ b/fs/cifs/fcntl.c
@@ -35,9 +35,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags)
/* No way on Linux VFS to ask to monitor xattr
changes (and no stream support either */
- if (fcntl_notify_flags & DN_ACCESS) {
+ if (fcntl_notify_flags & DN_ACCESS)
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
- }
if (fcntl_notify_flags & DN_MODIFY) {
/* What does this mean on directories? */
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE |
@@ -47,9 +46,8 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags)
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION |
FILE_NOTIFY_CHANGE_LAST_WRITE;
}
- if (fcntl_notify_flags & DN_DELETE) {
+ if (fcntl_notify_flags & DN_DELETE)
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE;
- }
if (fcntl_notify_flags & DN_RENAME) {
/* BB review this - checking various server behaviors */
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME |
@@ -70,7 +68,7 @@ int cifs_dir_notify(struct file *file, unsigned long arg)
{
int xid;
int rc = -EINVAL;
- int oplock = FALSE;
+ int oplock = 0;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
char *full_path = NULL;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 086dbdc..d969578 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -64,8 +64,8 @@ static inline struct cifsFileInfo *cifs_init_private(
INIT_LIST_HEAD(&private_data->llist);
private_data->pfile = file; /* needed for writepage */
private_data->pInode = inode;
- private_data->invalidHandle = FALSE;
- private_data->closePend = FALSE;
+ private_data->invalidHandle = false;
+ private_data->closePend = false;
/* we have to track num writers to the inode, since writepages
does not tell us which handle the write is for so there can
be a close (overlapping with write) of the filehandle that
@@ -88,7 +88,11 @@ static inline int cifs_convert_flags(unsigned int flags)
return (GENERIC_READ | GENERIC_WRITE);
}
- return 0x20197;
+ return (READ_CONTROL | FILE_WRITE_ATTRIBUTES | FILE_READ_ATTRIBUTES |
+ FILE_WRITE_EA | FILE_APPEND_DATA | FILE_WRITE_DATA |
+ FILE_READ_DATA);
+
+
}
static inline int cifs_get_disposition(unsigned int flags)
@@ -187,11 +191,11 @@ client_can_cache:
#else
rc = cifs_get_inode_info(&file->f_path.dentry->d_inode,
#endif
- full_path, buf, inode->i_sb, xid);
+ full_path, buf, inode->i_sb, xid, NULL);
if ((*oplock & 0xF) == OPLOCK_EXCLUSIVE) {
- pCifsInode->clientCanCacheAll = TRUE;
- pCifsInode->clientCanCacheRead = TRUE;
+ pCifsInode->clientCanCacheAll = true;
+ pCifsInode->clientCanCacheRead = true;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
cFYI(1, ("Exclusive Oplock granted on inode %p",
file->f_dentry->d_inode));
@@ -200,7 +204,7 @@ client_can_cache:
file->f_path.dentry->d_inode));
#endif
} else if ((*oplock & 0xF) == OPLOCK_READ)
- pCifsInode->clientCanCacheRead = TRUE;
+ pCifsInode->clientCanCacheRead = true;
return rc;
}
@@ -302,7 +306,7 @@ int cifs_open(struct inode *inode, struct file *file)
if (oplockEnabled)
oplock = REQ_OPLOCK;
else
- oplock = FALSE;
+ oplock = 0;
/* BB pass O_SYNC flag through on file attributes .. BB */
@@ -365,18 +369,19 @@ int cifs_open(struct inode *inode, struct file *file)
/* time to set mode which we can not set earlier due to
problems creating new read-only files */
if (pTcon->unix_ext) {
- CIFSSMBUnixSetPerms(xid, pTcon, full_path,
- inode->i_mode,
- (__u64)-1, (__u64)-1, 0 /* dev */,
+ struct cifs_unix_set_info_args args = {
+ .mode = inode->i_mode,
+ .uid = NO_CHANGE_64,
+ .gid = NO_CHANGE_64,
+ .ctime = NO_CHANGE_64,
+ .atime = NO_CHANGE_64,
+ .mtime = NO_CHANGE_64,
+ .device = 0,
+ };
+ CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- } else {
- /* BB implement via Windows security descriptors eg
- CIFSSMBWinSetPerms(xid, pTcon, full_path, mode,
- -1, -1, local_nls);
- in the meantime could set r/o dos attribute when
- perms are eg: mode & 0222 == 0 */
}
}
@@ -398,7 +403,7 @@ static int cifs_relock_file(struct cifsFileInfo *cifsFile)
return rc;
}
-static int cifs_reopen_file(struct file *file, int can_flush)
+static int cifs_reopen_file(struct file *file, bool can_flush)
{
int rc = -EACCES;
int xid, oplock;
@@ -412,14 +417,14 @@ static int cifs_reopen_file(struct file *file, int can_flush)
int disposition = FILE_OPEN;
__u16 netfid;
- if (file->private_data) {
+ if (file->private_data)
pCifsFile = (struct cifsFileInfo *)file->private_data;
- } else
+ else
return -EBADF;
xid = GetXid();
down(&pCifsFile->fh_sem);
- if (pCifsFile->invalidHandle == FALSE) {
+ if (!pCifsFile->invalidHandle) {
up(&pCifsFile->fh_sem);
FreeXid(xid);
return 0;
@@ -489,7 +494,7 @@ reopen_error_exit:
if (oplockEnabled)
oplock = REQ_OPLOCK;
else
- oplock = FALSE;
+ oplock = 0;
/* Can not refresh inode by passing in file_info buf to be returned
by SMBOpen and then calling get_inode_info with returned buf
@@ -507,7 +512,7 @@ reopen_error_exit:
cFYI(1, ("oplock: %d", oplock));
} else {
pCifsFile->netfid = netfid;
- pCifsFile->invalidHandle = FALSE;
+ pCifsFile->invalidHandle = false;
up(&pCifsFile->fh_sem);
pCifsInode = CIFS_I(inode);
if (pCifsInode) {
@@ -517,15 +522,15 @@ reopen_error_exit:
CIFS_I(inode)->write_behind_rc = rc;
/* temporarily disable caching while we
go to server to get inode info */
- pCifsInode->clientCanCacheAll = FALSE;
- pCifsInode->clientCanCacheRead = FALSE;
+ pCifsInode->clientCanCacheAll = false;
+ pCifsInode->clientCanCacheRead = false;
if (pTcon->unix_ext)
rc = cifs_get_inode_info_unix(&inode,
full_path, inode->i_sb, xid);
else
rc = cifs_get_inode_info(&inode,
full_path, NULL, inode->i_sb,
- xid);
+ xid, NULL);
} /* else we are writing out data to server already
and could deadlock if we tried to flush data, and
since we do not know if we have data that would
@@ -533,8 +538,8 @@ reopen_error_exit:
we can not go to the server to get the new inod
info */
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
- pCifsInode->clientCanCacheAll = TRUE;
- pCifsInode->clientCanCacheRead = TRUE;
+ pCifsInode->clientCanCacheAll = true;
+ pCifsInode->clientCanCacheRead = true;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
cFYI(1, ("Exclusive Oplock granted on inode %p",
file->f_dentry->d_inode));
@@ -543,11 +548,11 @@ reopen_error_exit:
file->f_path.dentry->d_inode));
#endif
} else if ((oplock & 0xF) == OPLOCK_READ) {
- pCifsInode->clientCanCacheRead = TRUE;
- pCifsInode->clientCanCacheAll = FALSE;
+ pCifsInode->clientCanCacheRead = true;
+ pCifsInode->clientCanCacheAll = false;
} else {
- pCifsInode->clientCanCacheRead = FALSE;
- pCifsInode->clientCanCacheAll = FALSE;
+ pCifsInode->clientCanCacheRead = false;
+ pCifsInode->clientCanCacheAll = false;
}
cifs_relock_file(pCifsFile);
}
@@ -574,7 +579,7 @@ int cifs_close(struct inode *inode, struct file *file)
if (pSMBFile) {
struct cifsLockInfo *li, *tmp;
- pSMBFile->closePend = TRUE;
+ pSMBFile->closePend = true;
if (pTcon) {
/* no sense reconnecting to close a file that is
already closed */
@@ -589,9 +594,8 @@ int cifs_close(struct inode *inode, struct file *file)
the struct would be in each open file,
but this should give enough time to
clear the socket */
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("close delay, write pending"));
-#endif /* DEBUG2 */
+ cFYI(DBG2,
+ ("close delay, write pending"));
msleep(timeout);
timeout *= 4;
}
@@ -633,7 +637,6 @@ int cifs_close(struct inode *inode, struct file *file)
msleep(timeout);
timeout *= 8;
}
- kfree(pSMBFile->search_resume_name);
kfree(file->private_data);
file->private_data = NULL;
} else
@@ -644,8 +647,8 @@ int cifs_close(struct inode *inode, struct file *file)
cFYI(1, ("closing last open instance for inode %p", inode));
/* if the file is not open we do not know if we can cache info
on this inode, much less write behind and read ahead */
- CIFS_I(inode)->clientCanCacheRead = FALSE;
- CIFS_I(inode)->clientCanCacheAll = FALSE;
+ CIFS_I(inode)->clientCanCacheRead = false;
+ CIFS_I(inode)->clientCanCacheAll = false;
}
read_unlock(&GlobalSMBSeslock);
if ((rc == 0) && CIFS_I(inode)->write_behind_rc)
@@ -678,9 +681,9 @@ int cifs_closedir(struct inode *inode, struct file *file)
pTcon = cifs_sb->tcon;
cFYI(1, ("Freeing private data in close dir"));
- if ((pCFileStruct->srch_inf.endOfSearch == FALSE) &&
- (pCFileStruct->invalidHandle == FALSE)) {
- pCFileStruct->invalidHandle = TRUE;
+ if (!pCFileStruct->srch_inf.endOfSearch &&
+ !pCFileStruct->invalidHandle) {
+ pCFileStruct->invalidHandle = true;
rc = CIFSFindClose(xid, pTcon, pCFileStruct->netfid);
cFYI(1, ("Closing uncompleted readdir with rc %d",
rc));
@@ -696,12 +699,6 @@ int cifs_closedir(struct inode *inode, struct file *file)
else
cifs_buf_release(ptmp);
}
- ptmp = pCFileStruct->search_resume_name;
- if (ptmp) {
- cFYI(1, ("closedir free resume name"));
- pCFileStruct->search_resume_name = NULL;
- kfree(ptmp);
- }
kfree(file->private_data);
file->private_data = NULL;
}
@@ -732,12 +729,12 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock)
__u32 numLock = 0;
__u32 numUnlock = 0;
__u64 length;
- int wait_flag = FALSE;
+ bool wait_flag = false;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
__u16 netfid;
__u8 lockType = LOCKING_ANDX_LARGE_FILES;
- int posix_locking;
+ bool posix_locking;
length = 1 + pfLock->fl_end - pfLock->fl_start;
rc = -EACCES;
@@ -754,7 +751,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock)
cFYI(1, ("Flock"));
if (pfLock->fl_flags & FL_SLEEP) {
cFYI(1, ("Blocking lock"));
- wait_flag = TRUE;
+ wait_flag = true;
}
if (pfLock->fl_flags & FL_ACCESS)
cFYI(1, ("Process suspended by mandatory locking - "
@@ -893,7 +890,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock)
stored_rc = CIFSSMBLock(xid, pTcon,
netfid,
li->length, li->offset,
- 1, 0, li->type, FALSE);
+ 1, 0, li->type, false);
if (stored_rc)
rc = stored_rc;
@@ -979,7 +976,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data,
filemap_fdatawait from here so tell
reopen_file not to flush data to server
now */
- rc = cifs_reopen_file(file, FALSE);
+ rc = cifs_reopen_file(file, false);
if (rc != 0)
break;
}
@@ -1112,7 +1109,7 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
filemap_fdatawait from here so tell
reopen_file not to flush data to
server now */
- rc = cifs_reopen_file(file, FALSE);
+ rc = cifs_reopen_file(file, false);
if (rc != 0)
break;
}
@@ -1190,6 +1187,37 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
return total_written;
}
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *cifs_inode)
+{
+ struct cifsFileInfo *open_file = NULL;
+
+ read_lock(&GlobalSMBSeslock);
+ /* we could simply get the first_list_entry since write-only entries
+ are always at the end of the list but since the first entry might
+ have a close pending, we go through the whole list */
+ list_for_each_entry(open_file, &cifs_inode->openFileList, flist) {
+ if (open_file->closePend)
+ continue;
+ if (open_file->pfile && ((open_file->pfile->f_flags & O_RDWR) ||
+ (open_file->pfile->f_flags & O_RDONLY))) {
+ if (!open_file->invalidHandle) {
+ /* found a good file */
+ /* lock it so it will not be closed on us */
+ atomic_inc(&open_file->wrtPending);
+ read_unlock(&GlobalSMBSeslock);
+ return open_file;
+ } /* else might as well continue, and look for
+ another, or simply have the caller reopen it
+ again rather than trying to fix this handle */
+ } else /* write only file */
+ break; /* write only files are last so must be done */
+ }
+ read_unlock(&GlobalSMBSeslock);
+ return NULL;
+}
+#endif
+
struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode)
{
struct cifsFileInfo *open_file;
@@ -1225,7 +1253,7 @@ refind_writable:
read_unlock(&GlobalSMBSeslock);
/* Had to unlock since following call can block */
- rc = cifs_reopen_file(open_file->pfile, FALSE);
+ rc = cifs_reopen_file(open_file->pfile, false);
if (!rc) {
if (!open_file->closePend)
return open_file;
@@ -1312,12 +1340,10 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
atomic_dec(&open_file->wrtPending);
/* Does mm or vfs already set times? */
inode->i_atime = inode->i_mtime = current_fs_time(inode->i_sb);
- if ((bytes_written > 0) && (offset)) {
+ if ((bytes_written > 0) && (offset))
rc = 0;
- } else if (bytes_written < 0) {
- if (rc != -EBADF)
- rc = bytes_written;
- }
+ else if (bytes_written < 0)
+ rc = bytes_written;
} else {
cFYI(1, ("No writeable filehandles for inode"));
rc = -EIO;
@@ -1592,9 +1618,8 @@ static int cifs_writepage(struct page *page, struct writeback_control *wbc)
xid = GetXid();
/* BB add check for wbc flags */
page_cache_get(page);
- if (!PageUptodate(page)) {
+ if (!PageUptodate(page))
cFYI(1, ("ppw - page not up to date"));
- }
/*
* Set the "writeback" flag, and clear "dirty" in the radix tree.
@@ -1629,9 +1654,9 @@ static int cifs_commit_write(struct file *file, struct page *page,
cFYI(1, ("commit write for page %p up to position %lld for %d",
page, position, to));
spin_lock(&inode->i_lock);
- if (position > inode->i_size) {
+ if (position > inode->i_size)
i_size_write(inode, position);
- }
+
spin_unlock(&inode->i_lock);
if (!PageUptodate(page)) {
position = ((loff_t)page->index << PAGE_CACHE_SHIFT) + offset;
@@ -1781,9 +1806,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
}
open_file = (struct cifsFileInfo *)file->private_data;
- if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
+ if ((file->f_flags & O_ACCMODE) == O_WRONLY)
cFYI(1, ("attempting read on write only file instance"));
- }
+
for (total_read = 0, current_offset = read_data;
read_size > total_read;
total_read += bytes_read, current_offset += bytes_read) {
@@ -1795,7 +1820,7 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
int buf_type = CIFS_NO_BUFFER;
if ((open_file->invalidHandle) &&
(!open_file->closePend)) {
- rc = cifs_reopen_file(file, TRUE);
+ rc = cifs_reopen_file(file, true);
if (rc != 0)
break;
}
@@ -1810,9 +1835,8 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data,
smb_read_data +
4 /* RFC1001 length field */ +
le16_to_cpu(pSMBr->DataOffset),
- bytes_read)) {
+ bytes_read))
rc = -EFAULT;
- }
if (buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(smb_read_data);
@@ -1885,7 +1909,7 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size,
while (rc == -EAGAIN) {
if ((open_file->invalidHandle) &&
(!open_file->closePend)) {
- rc = cifs_reopen_file(file, TRUE);
+ rc = cifs_reopen_file(file, true);
if (rc != 0)
break;
}
@@ -1989,7 +2013,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
struct page *page;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
- int bytes_read = 0;
+ unsigned int bytes_read = 0;
unsigned int read_size, i;
char *smb_read_data = NULL;
struct smb_com_read_rsp *pSMBr;
@@ -2011,9 +2035,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
pTcon = cifs_sb->tcon;
pagevec_init(&lru_pvec, 0);
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("rpages: num pages %d", num_pages));
-#endif
+ cFYI(DBG2, ("rpages: num pages %d", num_pages));
for (i = 0; i < num_pages; ) {
unsigned contig_pages;
struct page *tmp_page;
@@ -2046,15 +2068,13 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
/* Read size needs to be in multiples of one page */
read_size = min_t(const unsigned int, read_size,
cifs_sb->rsize & PAGE_CACHE_MASK);
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("rpages: read size 0x%x contiguous pages %d",
+ cFYI(DBG2, ("rpages: read size 0x%x contiguous pages %d",
read_size, contig_pages));
-#endif
rc = -EAGAIN;
while (rc == -EAGAIN) {
if ((open_file->invalidHandle) &&
(!open_file->closePend)) {
- rc = cifs_reopen_file(file, TRUE);
+ rc = cifs_reopen_file(file, true);
if (rc != 0)
break;
}
@@ -2089,7 +2109,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
i += bytes_read >> PAGE_CACHE_SHIFT;
cifs_stats_bytes_read(pTcon, bytes_read);
- if ((int)(bytes_read & PAGE_CACHE_MASK) != bytes_read) {
+ if ((bytes_read & PAGE_CACHE_MASK) != bytes_read) {
i++; /* account for partial page */
/* server copy of file can have smaller size
@@ -2221,10 +2241,10 @@ static int is_inode_writable(struct cifsInodeInfo *cifs_inode)
refreshing the inode only on increases in the file size
but this is tricky to do without racing with writebehind
page caching in the current Linux kernel design */
-int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file)
+bool is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file)
{
if (!cifsInode)
- return 1;
+ return true;
if (is_inode_writable(cifsInode)) {
/* This inode is open for write at least once */
@@ -2235,18 +2255,18 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file)
#else
cifs_sb = CIFS_SB(open_file->pfile->f_dentry->d_inode->i_sb);
#endif
- if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
/* since no page cache to corrupt on directio
we can change size safely */
- return 1;
+ return true;
}
if (i_size_read(&cifsInode->vfs_inode) < end_of_file)
- return 1;
+ return true;
- return 0;
+ return false;
} else
- return 1;
+ return true;
}
static int cifs_prepare_write(struct file *file, struct page *page,
@@ -2302,7 +2322,10 @@ static int cifs_prepare_write(struct file *file, struct page *page,
return 0;
}
-const struct address_space_operations cifs_addr_ops = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
.readpages = cifs_readpages,
@@ -2325,7 +2348,10 @@ const struct address_space_operations cifs_addr_ops = {
* contain the header plus one complete page of data. Otherwise, we need
* to leave cifs_readpages out of the address space operations.
*/
-const struct address_space_operations cifs_addr_ops_smallbuf = {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct address_space_operations cifs_addr_ops_smallbuf = {
.readpage = cifs_readpage,
.writepage = cifs_writepage,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 14)
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e8aaa5b..5bfa5fb 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -33,189 +33,247 @@
#endif
+
+static void cifs_set_ops(struct inode *inode, const bool is_dfs_referral)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFREG:
+ inode->i_op = &cifs_file_inode_ops;
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop = &cifs_file_direct_nobrl_ops;
+ else
+ inode->i_fop = &cifs_file_direct_ops;
+ } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop = &cifs_file_nobrl_ops;
+ else { /* not direct, send byte range locks */
+ inode->i_fop = &cifs_file_ops;
+ }
+
+
+ /* check if server can support readpages */
+ if (cifs_sb->tcon->ses->server->maxBuf <
+ PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
+ inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
+ else
+ inode->i_data.a_ops = &cifs_addr_ops;
+ break;
+ case S_IFDIR:
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ if (is_dfs_referral) {
+ inode->i_op = &cifs_dfs_referral_inode_operations;
+ } else {
+#else /* NO DFS support, treat as a directory */
+ {
+#endif
+ inode->i_op = &cifs_dir_inode_ops;
+ inode->i_fop = &cifs_dir_ops;
+ }
+ break;
+ case S_IFLNK:
+ inode->i_op = &cifs_symlink_inode_ops;
+ break;
+ default:
+ init_special_inode(inode, inode->i_mode, inode->i_rdev);
+ break;
+ }
+}
+
+static void cifs_unix_info_to_inode(struct inode *inode,
+ FILE_UNIX_BASIC_INFO *info, int force_uid_gid)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsInodeInfo *cifsInfo = CIFS_I(inode);
+ __u64 num_of_bytes = le64_to_cpu(info->NumOfBytes);
+ __u64 end_of_file = le64_to_cpu(info->EndOfFile);
+
+ inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(info->LastAccessTime));
+ inode->i_mtime =
+ cifs_NTtimeToUnix(le64_to_cpu(info->LastModificationTime));
+ inode->i_ctime = cifs_NTtimeToUnix(le64_to_cpu(info->LastStatusChange));
+ inode->i_mode = le64_to_cpu(info->Permissions);
+
+ /*
+ * Since we set the inode type below we need to mask off
+ * to avoid strange results if bits set above.
+ */
+ inode->i_mode &= ~S_IFMT;
+ switch (le32_to_cpu(info->Type)) {
+ case UNIX_FILE:
+ inode->i_mode |= S_IFREG;
+ break;
+ case UNIX_SYMLINK:
+ inode->i_mode |= S_IFLNK;
+ break;
+ case UNIX_DIR:
+ inode->i_mode |= S_IFDIR;
+ break;
+ case UNIX_CHARDEV:
+ inode->i_mode |= S_IFCHR;
+ inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor),
+ le64_to_cpu(info->DevMinor) & MINORMASK);
+ break;
+ case UNIX_BLOCKDEV:
+ inode->i_mode |= S_IFBLK;
+ inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor),
+ le64_to_cpu(info->DevMinor) & MINORMASK);
+ break;
+ case UNIX_FIFO:
+ inode->i_mode |= S_IFIFO;
+ break;
+ case UNIX_SOCKET:
+ inode->i_mode |= S_IFSOCK;
+ break;
+ default:
+ /* safest to call it a file if we do not know */
+ inode->i_mode |= S_IFREG;
+ cFYI(1, ("unknown type %d", le32_to_cpu(info->Type)));
+ break;
+ }
+
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) &&
+ !force_uid_gid)
+ inode->i_uid = cifs_sb->mnt_uid;
+ else
+ inode->i_uid = le64_to_cpu(info->Uid);
+
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) &&
+ !force_uid_gid)
+ inode->i_gid = cifs_sb->mnt_gid;
+ else
+ inode->i_gid = le64_to_cpu(info->Gid);
+
+ inode->i_nlink = le64_to_cpu(info->Nlinks);
+
+ spin_lock(&inode->i_lock);
+ if (is_size_safe_to_change(cifsInfo, end_of_file)) {
+ /*
+ * We can not safely change the file size here if the client
+ * is writing to it due to potential races.
+ */
+ i_size_write(inode, end_of_file);
+
+ /*
+ * i_blocks is not related to (i_size / i_blksize),
+ * but instead 512 byte (2**9) size is required for
+ * calculating num blocks.
+ */
+ inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
+ }
+ spin_unlock(&inode->i_lock);
+}
+
+
+/*
+ * Needed to setup inode data for the directory which is the
+ * junction to the new submount (ie to setup the fake directory
+ * which represents a DFS referral)
+ */
+static void fill_fake_finddataunix(FILE_UNIX_BASIC_INFO *pfnd_dat,
+ struct super_block *sb)
+{
+ struct inode *pinode = NULL;
+
+ memset(pfnd_dat, 0, sizeof(FILE_UNIX_BASIC_INFO));
+
+/* __le64 pfnd_dat->EndOfFile = cpu_to_le64(0);
+ __le64 pfnd_dat->NumOfBytes = cpu_to_le64(0);
+ __u64 UniqueId = 0; */
+ pfnd_dat->LastStatusChange =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->LastAccessTime =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->LastModificationTime =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->Type = cpu_to_le32(UNIX_DIR);
+ pfnd_dat->Permissions = cpu_to_le64(S_IXUGO | S_IRWXU);
+ pfnd_dat->Nlinks = cpu_to_le64(2);
+ if (sb->s_root)
+ pinode = sb->s_root->d_inode;
+ if (pinode == NULL)
+ return;
+
+ /* fill in default values for the remaining based on root
+ inode since we can not query the server for this inode info */
+ pfnd_dat->DevMajor = cpu_to_le64(MAJOR(pinode->i_rdev));
+ pfnd_dat->DevMinor = cpu_to_le64(MINOR(pinode->i_rdev));
+ pfnd_dat->Uid = cpu_to_le64(pinode->i_uid);
+ pfnd_dat->Gid = cpu_to_le64(pinode->i_gid);
+}
+
int cifs_get_inode_info_unix(struct inode **pinode,
- const unsigned char *search_path, struct super_block *sb, int xid)
+ const unsigned char *full_path, struct super_block *sb, int xid)
{
int rc = 0;
- FILE_UNIX_BASIC_INFO findData;
+ FILE_UNIX_BASIC_INFO find_data;
struct cifsTconInfo *pTcon;
struct inode *inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- char *tmp_path;
+ bool is_dfs_referral = false;
+ struct cifsInodeInfo *cifsInfo;
+ __u64 num_of_bytes;
+ __u64 end_of_file;
pTcon = cifs_sb->tcon;
- cFYI(1, ("Getting info on %s", search_path));
+ cFYI(1, ("Getting info on %s", full_path));
+
/* could have done a find first instead but this returns more info */
- rc = CIFSSMBUnixQPathInfo(xid, pTcon, search_path, &findData,
+ rc = CIFSSMBUnixQPathInfo(xid, pTcon, full_path, &find_data,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
-/* dump_mem("\nUnixQPathInfo return data", &findData,
- sizeof(findData)); */
- if (rc) {
- if (rc == -EREMOTE) {
- tmp_path =
- kmalloc(strnlen(pTcon->treeName,
- MAX_TREE_SIZE + 1) +
- strnlen(search_path, MAX_PATHCONF) + 1,
- GFP_KERNEL);
- if (tmp_path == NULL) {
- return -ENOMEM;
- }
- /* have to skip first of the double backslash of
- UNC name */
- strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE);
- strncat(tmp_path, search_path, MAX_PATHCONF);
- rc = connect_to_dfs_path(xid, pTcon->ses,
- /* treename + */ tmp_path,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- kfree(tmp_path);
+ if (rc == -EREMOTE && !is_dfs_referral) {
+ is_dfs_referral = true;
+ cFYI(DBG2, ("DFS ref"));
+ /* for DFS, server does not give us real inode data */
+ fill_fake_finddataunix(&find_data, sb);
+ rc = 0;
+ } else if (rc)
+ goto cgiiu_exit;
- /* BB fix up inode etc. */
- } else if (rc) {
- return rc;
- }
- } else {
- struct cifsInodeInfo *cifsInfo;
- __u32 type = le32_to_cpu(findData.Type);
- __u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes);
- __u64 end_of_file = le64_to_cpu(findData.EndOfFile);
+ num_of_bytes = le64_to_cpu(find_data.NumOfBytes);
+ end_of_file = le64_to_cpu(find_data.EndOfFile);
- /* get new inode */
+ /* get new inode */
+ if (*pinode == NULL) {
+ *pinode = new_inode(sb);
if (*pinode == NULL) {
- *pinode = new_inode(sb);
- if (*pinode == NULL)
- return -ENOMEM;
- /* Is an i_ino of zero legal? */
- /* Are there sanity checks we can use to ensure that
- the server is really filling in that field? */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
- (*pinode)->i_ino =
- (unsigned long)findData.UniqueId;
- } /* note ino incremented to unique num in new_inode */
- if (sb->s_flags & MS_NOATIME)
- (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME;
-
- insert_inode_hash(*pinode);
- }
-
- inode = *pinode;
- cifsInfo = CIFS_I(inode);
-
- cFYI(1, ("Old time %ld", cifsInfo->time));
- cifsInfo->time = jiffies;
- cFYI(1, ("New time %ld", cifsInfo->time));
- /* this is ok to set on every inode revalidate */
- atomic_set(&cifsInfo->inUse, 1);
-
- inode->i_atime =
- cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime));
- inode->i_mtime =
- cifs_NTtimeToUnix(le64_to_cpu
- (findData.LastModificationTime));
- inode->i_ctime =
- cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange));
- inode->i_mode = le64_to_cpu(findData.Permissions);
- /* since we set the inode type below we need to mask off
- to avoid strange results if bits set above */
- inode->i_mode &= ~S_IFMT;
- if (type == UNIX_FILE) {
- inode->i_mode |= S_IFREG;
- } else if (type == UNIX_SYMLINK) {
- inode->i_mode |= S_IFLNK;
- } else if (type == UNIX_DIR) {
- inode->i_mode |= S_IFDIR;
- } else if (type == UNIX_CHARDEV) {
- inode->i_mode |= S_IFCHR;
- inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor),
- le64_to_cpu(findData.DevMinor) & MINORMASK);
- } else if (type == UNIX_BLOCKDEV) {
- inode->i_mode |= S_IFBLK;
- inode->i_rdev = MKDEV(le64_to_cpu(findData.DevMajor),
- le64_to_cpu(findData.DevMinor) & MINORMASK);
- } else if (type == UNIX_FIFO) {
- inode->i_mode |= S_IFIFO;
- } else if (type == UNIX_SOCKET) {
- inode->i_mode |= S_IFSOCK;
- } else {
- /* safest to call it a file if we do not know */
- inode->i_mode |= S_IFREG;
- cFYI(1, ("unknown type %d", type));
+ rc = -ENOMEM;
+ goto cgiiu_exit;
}
+ /* Is an i_ino of zero legal? */
+ /* note ino incremented to unique num in new_inode */
+ /* Are there sanity checks we can use to ensure that
+ the server is really filling in that field? */
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ (*pinode)->i_ino = (unsigned long)find_data.UniqueId;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
- inode->i_uid = cifs_sb->mnt_uid;
- else
- inode->i_uid = le64_to_cpu(findData.Uid);
+ if (sb->s_flags & MS_NOATIME)
+ (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
- inode->i_gid = cifs_sb->mnt_gid;
- else
- inode->i_gid = le64_to_cpu(findData.Gid);
+ insert_inode_hash(*pinode);
+ }
- inode->i_nlink = le64_to_cpu(findData.Nlinks);
+ inode = *pinode;
+ cifsInfo = CIFS_I(inode);
- spin_lock(&inode->i_lock);
- if (is_size_safe_to_change(cifsInfo, end_of_file)) {
- /* can not safely change the file size here if the
- client is writing to it due to potential races */
- i_size_write(inode, end_of_file);
+ cFYI(1, ("Old time %ld", cifsInfo->time));
+ cifsInfo->time = jiffies;
+ cFYI(1, ("New time %ld", cifsInfo->time));
+ /* this is ok to set on every inode revalidate */
+ atomic_set(&cifsInfo->inUse, 1);
- /* blksize needs to be multiple of two. So safer to default to
- blksize and blkbits set in superblock so 2**blkbits and blksize
- will match rather than setting to:
- (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
+ cifs_unix_info_to_inode(inode, &find_data, 0);
- /* This seems incredibly stupid but it turns out that i_blocks
- is not related to (i_size / i_blksize), instead 512 byte size
- is required for calculating num blocks */
+ if (num_of_bytes < end_of_file)
+ cFYI(1, ("allocation size less than end of file"));
+ cFYI(1, ("Size %ld and blocks %llu",
+ (unsigned long) inode->i_size,
+ (unsigned long long)inode->i_blocks));
- /* 512 bytes (2**9) is the fake blocksize that must be used */
- /* for this calculation */
- inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
- }
- spin_unlock(&inode->i_lock);
-
- if (num_of_bytes < end_of_file)
- cFYI(1, ("allocation size less than end of file"));
- cFYI(1, ("Size %ld and blocks %llu",
- (unsigned long) inode->i_size,
- (unsigned long long)inode->i_blocks));
- if (S_ISREG(inode->i_mode)) {
- cFYI(1, ("File inode"));
- inode->i_op = &cifs_file_inode_ops;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop =
- &cifs_file_direct_nobrl_ops;
- else
- inode->i_fop = &cifs_file_direct_ops;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop = &cifs_file_nobrl_ops;
- else /* not direct, send byte range locks */
- inode->i_fop = &cifs_file_ops;
-
- /* check if server can support readpages */
- if (pTcon->ses->server->maxBuf <
- PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
- inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
- else
- inode->i_data.a_ops = &cifs_addr_ops;
- } else if (S_ISDIR(inode->i_mode)) {
- cFYI(1, ("Directory inode"));
- inode->i_op = &cifs_dir_inode_ops;
- inode->i_fop = &cifs_dir_ops;
- } else if (S_ISLNK(inode->i_mode)) {
- cFYI(1, ("Symbolic Link inode"));
- inode->i_op = &cifs_symlink_inode_ops;
- /* tmp_inode->i_fop = */ /* do not need to set to anything */
- } else {
- cFYI(1, ("Init special inode"));
- init_special_inode(inode, inode->i_mode,
- inode->i_rdev);
- }
- }
+ cifs_set_ops(inode, is_dfs_referral);
+cgiiu_exit:
return rc;
}
@@ -224,7 +282,7 @@ static int decode_sfu_inode(struct inode *inode, __u64 size,
struct cifs_sb_info *cifs_sb, int xid)
{
int rc;
- int oplock = FALSE;
+ int oplock = 0;
__u16 netfid;
struct cifsTconInfo *pTcon = cifs_sb->tcon;
char buf[24];
@@ -293,7 +351,7 @@ static int decode_sfu_inode(struct inode *inode, __u64 size,
#define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */
-static int get_sfu_uid_mode(struct inode *inode,
+static int get_sfu_mode(struct inode *inode,
const unsigned char *path,
struct cifs_sb_info *cifs_sb, int xid)
{
@@ -322,20 +380,52 @@ static int get_sfu_uid_mode(struct inode *inode,
#endif
}
+/*
+ * Needed to setup inode data for the directory which is the
+ * junction to the new submount (ie to setup the fake directory
+ * which represents a DFS referral)
+ */
+static void fill_fake_finddata(FILE_ALL_INFO *pfnd_dat,
+ struct super_block *sb)
+{
+ memset(pfnd_dat, 0, sizeof(FILE_ALL_INFO));
+
+/* __le64 pfnd_dat->AllocationSize = cpu_to_le64(0);
+ __le64 pfnd_dat->EndOfFile = cpu_to_le64(0);
+ __u8 pfnd_dat->DeletePending = 0;
+ __u8 pfnd_data->Directory = 0;
+ __le32 pfnd_dat->EASize = 0;
+ __u64 pfnd_dat->IndexNumber = 0;
+ __u64 pfnd_dat->IndexNumber1 = 0; */
+ pfnd_dat->CreationTime =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->LastAccessTime =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->LastWriteTime =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->ChangeTime =
+ cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ pfnd_dat->Attributes = cpu_to_le32(ATTR_DIRECTORY);
+ pfnd_dat->NumberOfLinks = cpu_to_le32(2);
+}
+
int cifs_get_inode_info(struct inode **pinode,
- const unsigned char *search_path, FILE_ALL_INFO *pfindData,
- struct super_block *sb, int xid)
+ const unsigned char *full_path, FILE_ALL_INFO *pfindData,
+ struct super_block *sb, int xid, const __u16 *pfid)
{
int rc = 0;
+ __u32 attr;
+ struct cifsInodeInfo *cifsInfo;
struct cifsTconInfo *pTcon;
struct inode *inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- char *tmp_path;
char *buf = NULL;
- int adjustTZ = FALSE;
+ bool adjustTZ = false;
+ bool is_dfs_referral = false;
+ umode_t default_mode;
pTcon = cifs_sb->tcon;
- cFYI(1, ("Getting info on %s", search_path));
+ cFYI(1, ("Getting info on %s", full_path));
if ((pfindData == NULL) && (*pinode != NULL)) {
if (CIFS_I(*pinode)->clientCanCacheRead) {
@@ -350,8 +440,9 @@ int cifs_get_inode_info(struct inode **pinode,
if (buf == NULL)
return -ENOMEM;
pfindData = (FILE_ALL_INFO *)buf;
+
/* could do find first instead but this returns more info */
- rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData,
+ rc = CIFSSMBQPathInfo(xid, pTcon, full_path, pfindData,
0 /* not legacy */,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
@@ -359,241 +450,227 @@ int cifs_get_inode_info(struct inode **pinode,
when server claims no NT SMB support and the above call
failed at least once - set flag in tcon or mount */
if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) {
- rc = SMBQueryInformation(xid, pTcon, search_path,
+ rc = SMBQueryInformation(xid, pTcon, full_path,
pfindData, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- adjustTZ = TRUE;
+ adjustTZ = true;
}
}
/* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */
- if (rc) {
- if (rc == -EREMOTE) {
- tmp_path =
- kmalloc(strnlen
- (pTcon->treeName,
- MAX_TREE_SIZE + 1) +
- strnlen(search_path, MAX_PATHCONF) + 1,
- GFP_KERNEL);
- if (tmp_path == NULL) {
- kfree(buf);
- return -ENOMEM;
- }
+ if (rc == -EREMOTE) {
+ is_dfs_referral = true;
+ fill_fake_finddata(pfindData, sb);
+ rc = 0;
+ } else if (rc)
+ goto cgii_exit;
- strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE);
- strncat(tmp_path, search_path, MAX_PATHCONF);
- rc = connect_to_dfs_path(xid, pTcon->ses,
- /* treename + */ tmp_path,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- kfree(tmp_path);
- /* BB fix up inode etc. */
- } else if (rc) {
- kfree(buf);
- return rc;
- }
- } else {
- struct cifsInodeInfo *cifsInfo;
- __u32 attr = le32_to_cpu(pfindData->Attributes);
+ attr = le32_to_cpu(pfindData->Attributes);
- /* get new inode */
+ /* get new inode */
+ if (*pinode == NULL) {
+ *pinode = new_inode(sb);
if (*pinode == NULL) {
- *pinode = new_inode(sb);
- if (*pinode == NULL) {
- kfree(buf);
- return -ENOMEM;
- }
- /* Is an i_ino of zero legal? Can we use that to check
- if the server supports returning inode numbers? Are
- there other sanity checks we can use to ensure that
- the server is really filling in that field? */
-
- /* We can not use the IndexNumber field by default from
- Windows or Samba (in ALL_INFO buf) but we can request
- it explicitly. It may not be unique presumably if
- the server has multiple devices mounted under one
- share */
-
- /* There may be higher info levels that work but are
- there Windows server or network appliances for which
- IndexNumber field is not guaranteed unique? */
-
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
- int rc1 = 0;
- __u64 inode_num;
-
- rc1 = CIFSGetSrvInodeNumber(xid, pTcon,
- search_path, &inode_num,
+ rc = -ENOMEM;
+ goto cgii_exit;
+ }
+ /* Is an i_ino of zero legal? Can we use that to check
+ if the server supports returning inode numbers? Are
+ there other sanity checks we can use to ensure that
+ the server is really filling in that field? */
+
+ /* We can not use the IndexNumber field by default from
+ Windows or Samba (in ALL_INFO buf) but we can request
+ it explicitly. It may not be unique presumably if
+ the server has multiple devices mounted under one share */
+
+ /* There may be higher info levels that work but are
+ there Windows server or network appliances for which
+ IndexNumber field is not guaranteed unique? */
+
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+ int rc1 = 0;
+ __u64 inode_num;
+
+ rc1 = CIFSGetSrvInodeNumber(xid, pTcon,
+ full_path, &inode_num,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc1) {
- cFYI(1, ("GetSrvInodeNum rc %d", rc1));
- /* BB EOPNOSUPP disable SERVER_INUM? */
- } else /* do we need cast or hash to ino? */
- (*pinode)->i_ino = inode_num;
- } /* else ino incremented to unique num in new_inode*/
- if (sb->s_flags & MS_NOATIME)
- (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME;
- insert_inode_hash(*pinode);
- }
- inode = *pinode;
- cifsInfo = CIFS_I(inode);
- cifsInfo->cifsAttrs = attr;
- cFYI(1, ("Old time %ld", cifsInfo->time));
- cifsInfo->time = jiffies;
- cFYI(1, ("New time %ld", cifsInfo->time));
-
- /* blksize needs to be multiple of two. So safer to default to
- blksize and blkbits set in superblock so 2**blkbits and blksize
- will match rather than setting to:
- (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
-
- /* Linux can not store file creation time so ignore it */
- if (pfindData->LastAccessTime)
- inode->i_atime = cifs_NTtimeToUnix
- (le64_to_cpu(pfindData->LastAccessTime));
- else /* do not need to use current_fs_time - time not stored */
- inode->i_atime = CURRENT_TIME;
- inode->i_mtime =
+ if (rc1) {
+ cFYI(1, ("GetSrvInodeNum rc %d", rc1));
+ /* BB EOPNOSUPP disable SERVER_INUM? */
+ } else /* do we need cast or hash to ino? */
+ (*pinode)->i_ino = inode_num;
+ } /* else ino incremented to unique num in new_inode*/
+ if (sb->s_flags & MS_NOATIME)
+ (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME;
+ insert_inode_hash(*pinode);
+ }
+ inode = *pinode;
+ cifsInfo = CIFS_I(inode);
+ cifsInfo->cifsAttrs = attr;
+ cFYI(1, ("Old time %ld", cifsInfo->time));
+ cifsInfo->time = jiffies;
+ cFYI(1, ("New time %ld", cifsInfo->time));
+
+ /* blksize needs to be multiple of two. So safer to default to
+ blksize and blkbits set in superblock so 2**blkbits and blksize
+ will match rather than setting to:
+ (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
+
+ /* Linux can not store file creation time so ignore it */
+ if (pfindData->LastAccessTime)
+ inode->i_atime = cifs_NTtimeToUnix
+ (le64_to_cpu(pfindData->LastAccessTime));
+ else /* do not need to use current_fs_time - time not stored */
+ inode->i_atime = CURRENT_TIME;
+ inode->i_mtime =
cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime));
- inode->i_ctime =
- cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
- cFYI(0, ("Attributes came in as 0x%x", attr));
- if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) {
- inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj;
- inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj;
- }
+ inode->i_ctime =
+ cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
+ cFYI(DBG2, ("Attributes came in as 0x%x", attr));
+ if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) {
+ inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj;
+ inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj;
+ }
- /* set default mode. will override for dirs below */
- if (atomic_read(&cifsInfo->inUse) == 0)
- /* new inode, can safely set these fields */
- inode->i_mode = cifs_sb->mnt_file_mode;
- else /* since we set the inode type below we need to mask off
- to avoid strange results if type changes and both
- get orred in */
- inode->i_mode &= ~S_IFMT;
-/* if (attr & ATTR_REPARSE) */
- /* We no longer handle these as symlinks because we could not
- follow them due to the absolute path with drive letter */
- if (attr & ATTR_DIRECTORY) {
- /* override default perms since we do not do byte range locking
- on dirs */
- inode->i_mode = cifs_sb->mnt_dir_mode;
- inode->i_mode |= S_IFDIR;
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
- (cifsInfo->cifsAttrs & ATTR_SYSTEM) &&
- /* No need to le64 convert size of zero */
- (pfindData->EndOfFile == 0)) {
- inode->i_mode = cifs_sb->mnt_file_mode;
+ /* get default inode mode */
+ if (attr & ATTR_DIRECTORY)
+ default_mode = cifs_sb->mnt_dir_mode;
+ else
+ default_mode = cifs_sb->mnt_file_mode;
+
+ /* set permission bits */
+ if (atomic_read(&cifsInfo->inUse) == 0 ||
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ inode->i_mode = default_mode;
+ else {
+ /* just reenable write bits if !ATTR_READONLY */
+ if ((inode->i_mode & S_IWUGO) == 0 &&
+ (attr & ATTR_READONLY) == 0)
+ inode->i_mode |= (S_IWUGO & default_mode);
+
+ inode->i_mode &= ~S_IFMT;
+ }
+ /* clear write bits if ATTR_READONLY is set */
+ if (attr & ATTR_READONLY)
+ inode->i_mode &= ~S_IWUGO;
+
+ /* set inode type */
+ if ((attr & ATTR_SYSTEM) &&
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) {
+ /* no need to fix endianness on 0 */
+ if (pfindData->EndOfFile == 0)
inode->i_mode |= S_IFIFO;
-/* BB Finish for SFU style symlinks and devices */
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
- (cifsInfo->cifsAttrs & ATTR_SYSTEM)) {
- if (decode_sfu_inode(inode,
- le64_to_cpu(pfindData->EndOfFile),
- search_path,
- cifs_sb, xid)) {
- cFYI(1, ("Unrecognized sfu inode type"));
- }
- cFYI(1, ("sfu mode 0%o", inode->i_mode));
- } else {
+ else if (decode_sfu_inode(inode,
+ le64_to_cpu(pfindData->EndOfFile),
+ full_path, cifs_sb, xid))
+ cFYI(1, ("unknown SFU file type\n"));
+ } else {
+ if (attr & ATTR_DIRECTORY)
+ inode->i_mode |= S_IFDIR;
+ else
inode->i_mode |= S_IFREG;
- /* treat the dos attribute of read-only as read-only
- mode e.g. 555 */
- if (cifsInfo->cifsAttrs & ATTR_READONLY)
- inode->i_mode &= ~(S_IWUGO);
- else if ((inode->i_mode & S_IWUGO) == 0)
- /* the ATTR_READONLY flag may have been */
- /* changed on server -- set any w bits */
- /* allowed by mnt_file_mode */
- inode->i_mode |= (S_IWUGO &
- cifs_sb->mnt_file_mode);
- /* BB add code here -
- validate if device or weird share or device type? */
- }
+ }
- spin_lock(&inode->i_lock);
- if (is_size_safe_to_change(cifsInfo, le64_to_cpu(pfindData->EndOfFile))) {
- /* can not safely shrink the file size here if the
- client is writing to it due to potential races */
- i_size_write(inode, le64_to_cpu(pfindData->EndOfFile));
+ spin_lock(&inode->i_lock);
+ if (is_size_safe_to_change(cifsInfo,
+ le64_to_cpu(pfindData->EndOfFile))) {
+ /* can not safely shrink the file size here if the
+ client is writing to it due to potential races */
+ i_size_write(inode, le64_to_cpu(pfindData->EndOfFile));
- /* 512 bytes (2**9) is the fake blocksize that must be
- used for this calculation */
- inode->i_blocks = (512 - 1 + le64_to_cpu(
- pfindData->AllocationSize)) >> 9;
- }
- spin_unlock(&inode->i_lock);
+ /* 512 bytes (2**9) is the fake blocksize that must be
+ used for this calculation */
+ inode->i_blocks = (512 - 1 + le64_to_cpu(
+ pfindData->AllocationSize)) >> 9;
+ }
+ spin_unlock(&inode->i_lock);
- inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks);
-
- /* BB fill in uid and gid here? with help from winbind?
- or retrieve from NTFS stream extended attribute */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
- /* fill in uid, gid, mode from server ACL */
- /* BB FIXME this should also take into account the
- * default uid specified on mount if present */
- get_sfu_uid_mode(inode, search_path, cifs_sb, xid);
- } else if (atomic_read(&cifsInfo->inUse) == 0) {
- inode->i_uid = cifs_sb->mnt_uid;
- inode->i_gid = cifs_sb->mnt_gid;
- /* set so we do not keep refreshing these fields with
- bad data after user has changed them in memory */
- atomic_set(&cifsInfo->inUse, 1);
- }
+ inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks);
- if (S_ISREG(inode->i_mode)) {
- cFYI(1, ("File inode"));
- inode->i_op = &cifs_file_inode_ops;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop =
- &cifs_file_direct_nobrl_ops;
- else
- inode->i_fop = &cifs_file_direct_ops;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop = &cifs_file_nobrl_ops;
- else /* not direct, send byte range locks */
- inode->i_fop = &cifs_file_ops;
-
- if (pTcon->ses->server->maxBuf <
- PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
- inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
- else
- inode->i_data.a_ops = &cifs_addr_ops;
- } else if (S_ISDIR(inode->i_mode)) {
- cFYI(1, ("Directory inode"));
- inode->i_op = &cifs_dir_inode_ops;
- inode->i_fop = &cifs_dir_ops;
- } else if (S_ISLNK(inode->i_mode)) {
- cFYI(1, ("Symbolic Link inode"));
- inode->i_op = &cifs_symlink_inode_ops;
- } else {
- init_special_inode(inode, inode->i_mode,
- inode->i_rdev);
- }
+ /* BB fill in uid and gid here? with help from winbind?
+ or retrieve from NTFS stream extended attribute */
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ /* fill in 0777 bits from ACL */
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
+ cFYI(1, ("Getting mode bits from ACL"));
+ acl_to_uid_mode(inode, full_path, pfid);
+ }
+#endif
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ /* fill in remaining high mode bits e.g. SUID, VTX */
+ get_sfu_mode(inode, full_path, cifs_sb, xid);
+ } else if (atomic_read(&cifsInfo->inUse) == 0) {
+ inode->i_uid = cifs_sb->mnt_uid;
+ inode->i_gid = cifs_sb->mnt_gid;
+ /* set so we do not keep refreshing these fields with
+ bad data after user has changed them in memory */
+ atomic_set(&cifsInfo->inUse, 1);
}
+
+ cifs_set_ops(inode, is_dfs_referral);
+
+
+
+
+cgii_exit:
kfree(buf);
return rc;
}
+static
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
+const
+#endif
+struct inode_operations cifs_ipc_inode_ops = {
+ .lookup = cifs_lookup,
+};
+
/* gets root inode */
-void cifs_read_inode(struct inode *inode)
+struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
{
int xid;
struct cifs_sb_info *cifs_sb;
+ struct inode *inode;
+ long rc;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ if (!(inode->i_state & I_NEW))
+ return inode;
cifs_sb = CIFS_SB(inode->i_sb);
xid = GetXid();
if (cifs_sb->tcon->unix_ext)
- cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
+ rc = cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
else
- cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid);
- /* can not call macro FreeXid here since in a void func */
+ rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid,
+ NULL);
+ if (rc && cifs_sb->tcon->ipc) {
+ cFYI(1, ("ipc connection - fake read inode"));
+ inode->i_mode |= S_IFDIR;
+ inode->i_nlink = 2;
+ inode->i_op = &cifs_ipc_inode_ops;
+ inode->i_fop = &simple_dir_operations;
+ inode->i_uid = cifs_sb->mnt_uid;
+ inode->i_gid = cifs_sb->mnt_gid;
+ } else if (rc) {
+ _FreeXid(xid);
+ iget_failed(inode);
+ return ERR_PTR(rc);
+ }
+
+ unlock_new_inode(inode);
+
+ /* can not call macro FreeXid here since in a void func
+ * TODO: This is no longer true
+ */
_FreeXid(xid);
+ return inode;
}
int cifs_unlink(struct inode *inode, struct dentry *direntry)
@@ -646,7 +723,7 @@ psx_del_no_retry:
} else if (rc == -ENOENT) {
d_drop(direntry);
} else if (rc == -ETXTBSY) {
- int oplock = FALSE;
+ int oplock = 0;
__u16 netfid;
rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, DELETE,
@@ -670,7 +747,7 @@ psx_del_no_retry:
/* ATTRS set to normal clears r/o bit */
pinfo_buf->Attributes = cpu_to_le32(ATTR_NORMAL);
if (!(pTcon->ses->flags & CIFS_SES_NT4))
- rc = CIFSSMBSetTimes(xid, pTcon, full_path,
+ rc = CIFSSMBSetPathInfo(xid, pTcon, full_path,
pinfo_buf,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
@@ -679,7 +756,7 @@ psx_del_no_retry:
rc = -EOPNOTSUPP;
if (rc == -EOPNOTSUPP) {
- int oplock = FALSE;
+ int oplock = 0;
__u16 netfid;
/* rc = CIFSSMBSetAttrLegacy(xid, pTcon,
full_path,
@@ -700,9 +777,10 @@ psx_del_no_retry:
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (rc == 0) {
- rc = CIFSSMBSetFileTimes(xid, pTcon,
- pinfo_buf,
- netfid);
+ rc = CIFSSMBSetFileInfo(xid, pTcon,
+ pinfo_buf,
+ netfid,
+ current->tgid);
CIFSSMBClose(xid, pTcon, netfid);
}
}
@@ -717,7 +795,7 @@ psx_del_no_retry:
if (direntry->d_inode)
drop_nlink(direntry->d_inode);
} else if (rc == -ETXTBSY) {
- int oplock = FALSE;
+ int oplock = 0;
__u16 netfid;
rc = CIFSSMBOpen(xid, pTcon, full_path,
@@ -760,17 +838,12 @@ psx_del_no_retry:
}
static void posix_fill_in_inode(struct inode *tmp_inode,
- FILE_UNIX_BASIC_INFO *pData, int *pobject_type, int isNewInode)
+ FILE_UNIX_BASIC_INFO *pData, int isNewInode)
{
+ struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
loff_t local_size;
struct timespec local_mtime;
- struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
- struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
-
- __u32 type = le32_to_cpu(pData->Type);
- __u64 num_of_bytes = le64_to_cpu(pData->NumOfBytes);
- __u64 end_of_file = le64_to_cpu(pData->EndOfFile);
cifsInfo->time = jiffies;
atomic_inc(&cifsInfo->inUse);
@@ -778,115 +851,27 @@ static void posix_fill_in_inode(struct inode *tmp_inode,
local_mtime = tmp_inode->i_mtime;
local_size = tmp_inode->i_size;
- tmp_inode->i_atime =
- cifs_NTtimeToUnix(le64_to_cpu(pData->LastAccessTime));
- tmp_inode->i_mtime =
- cifs_NTtimeToUnix(le64_to_cpu(pData->LastModificationTime));
- tmp_inode->i_ctime =
- cifs_NTtimeToUnix(le64_to_cpu(pData->LastStatusChange));
-
- tmp_inode->i_mode = le64_to_cpu(pData->Permissions);
- /* since we set the inode type below we need to mask off type
- to avoid strange results if bits above were corrupt */
- tmp_inode->i_mode &= ~S_IFMT;
- if (type == UNIX_FILE) {
- *pobject_type = DT_REG;
- tmp_inode->i_mode |= S_IFREG;
- } else if (type == UNIX_SYMLINK) {
- *pobject_type = DT_LNK;
- tmp_inode->i_mode |= S_IFLNK;
- } else if (type == UNIX_DIR) {
- *pobject_type = DT_DIR;
- tmp_inode->i_mode |= S_IFDIR;
- } else if (type == UNIX_CHARDEV) {
- *pobject_type = DT_CHR;
- tmp_inode->i_mode |= S_IFCHR;
- tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor),
- le64_to_cpu(pData->DevMinor) & MINORMASK);
- } else if (type == UNIX_BLOCKDEV) {
- *pobject_type = DT_BLK;
- tmp_inode->i_mode |= S_IFBLK;
- tmp_inode->i_rdev = MKDEV(le64_to_cpu(pData->DevMajor),
- le64_to_cpu(pData->DevMinor) & MINORMASK);
- } else if (type == UNIX_FIFO) {
- *pobject_type = DT_FIFO;
- tmp_inode->i_mode |= S_IFIFO;
- } else if (type == UNIX_SOCKET) {
- *pobject_type = DT_SOCK;
- tmp_inode->i_mode |= S_IFSOCK;
- } else {
- /* safest to just call it a file */
- *pobject_type = DT_REG;
- tmp_inode->i_mode |= S_IFREG;
- cFYI(1, ("unknown inode type %d", type));
- }
-
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("object type: %d", type));
-#endif
- tmp_inode->i_uid = le64_to_cpu(pData->Uid);
- tmp_inode->i_gid = le64_to_cpu(pData->Gid);
- tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks);
-
- spin_lock(&tmp_inode->i_lock);
- if (is_size_safe_to_change(cifsInfo, end_of_file)) {
- /* can not safely change the file size here if the
- client is writing to it due to potential races */
- i_size_write(tmp_inode, end_of_file);
-
- /* 512 bytes (2**9) is the fake blocksize that must be used */
- /* for this calculation, not the real blocksize */
- tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
- }
- spin_unlock(&tmp_inode->i_lock);
-
- if (S_ISREG(tmp_inode->i_mode)) {
- cFYI(1, ("File inode"));
- tmp_inode->i_op = &cifs_file_inode_ops;
-
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
- else
- tmp_inode->i_fop = &cifs_file_direct_ops;
-
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- tmp_inode->i_fop = &cifs_file_nobrl_ops;
- else
- tmp_inode->i_fop = &cifs_file_ops;
+ cifs_unix_info_to_inode(tmp_inode, pData, 1);
+ cifs_set_ops(tmp_inode, false);
- if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
- (cifs_sb->tcon->ses->server->maxBuf <
- PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
- tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
- else
- tmp_inode->i_data.a_ops = &cifs_addr_ops;
+ if (!S_ISREG(tmp_inode->i_mode))
+ return;
- if (isNewInode)
- return; /* No sense invalidating pages for new inode
- since we we have not started caching
- readahead file data yet */
+ /*
+ * No sense invalidating pages for new inode
+ * since we we have not started caching
+ * readahead file data yet.
+ */
+ if (isNewInode)
+ return;
- if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
- (local_size == tmp_inode->i_size)) {
- cFYI(1, ("inode exists but unchanged"));
- } else {
- /* file may have changed on server */
- cFYI(1, ("invalidate inode, readdir detected change"));
- invalidate_remote_inode(tmp_inode);
- }
- } else if (S_ISDIR(tmp_inode->i_mode)) {
- cFYI(1, ("Directory inode"));
- tmp_inode->i_op = &cifs_dir_inode_ops;
- tmp_inode->i_fop = &cifs_dir_ops;
- } else if (S_ISLNK(tmp_inode->i_mode)) {
- cFYI(1, ("Symbolic Link inode"));
- tmp_inode->i_op = &cifs_symlink_inode_ops;
-/* tmp_inode->i_fop = *//* do not need to set to anything */
+ if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
+ (local_size == tmp_inode->i_size)) {
+ cFYI(1, ("inode exists but unchanged"));
} else {
- cFYI(1, ("Special inode"));
- init_special_inode(tmp_inode, tmp_inode->i_mode,
- tmp_inode->i_rdev);
+ /* file may have changed on server */
+ cFYI(1, ("invalidate inode, readdir detected change"));
+ invalidate_remote_inode(tmp_inode);
}
}
@@ -916,7 +901,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(pTcon->fsUnixInfo.Capability))) {
u32 oplock = 0;
- FILE_UNIX_BASIC_INFO * pInfo =
+ FILE_UNIX_BASIC_INFO *pInfo =
kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
if (pInfo == NULL) {
rc = -ENOMEM;
@@ -936,7 +921,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
cFYI(1, ("posix mkdir returned 0x%x", rc));
d_drop(direntry);
} else {
- int obj_type;
if (pInfo->Type == cpu_to_le32(-1)) {
/* no return info, go query for it */
kfree(pInfo);
@@ -972,7 +956,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
/* we already checked in POSIXCreate whether
frame was long enough */
posix_fill_in_inode(direntry->d_inode,
- pInfo, &obj_type, 1 /* NewInode */);
+ pInfo, 1 /* NewInode */);
#ifdef CONFIG_CIFS_DEBUG2
cFYI(1, ("instantiated dentry %p %s to inode %p",
direntry, direntry->d_name.name, newinode));
@@ -1000,7 +984,7 @@ mkdir_get_info:
inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newinode, full_path, NULL,
- inode->i_sb, xid);
+ inode->i_sb, xid, NULL);
if (pTcon->nocase)
direntry->d_op = &cifs_ci_dentry_ops;
@@ -1011,38 +995,61 @@ mkdir_get_info:
* failed to get it from the server or was set bogus */
if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
direntry->d_inode->i_nlink = 2;
+
+ mode &= ~current->fs->umask;
+ /* must turn on setgid bit if parent dir has it */
+ if (inode->i_mode & S_ISGID)
+ mode |= S_ISGID;
+
if (pTcon->unix_ext) {
- mode &= ~current->fs->umask;
+ struct cifs_unix_set_info_args args = {
+ .mode = mode,
+ .ctime = NO_CHANGE_64,
+ .atime = NO_CHANGE_64,
+ .mtime = NO_CHANGE_64,
+ .device = 0,
+ };
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
- CIFSSMBUnixSetPerms(xid, pTcon, full_path,
- mode,
- (__u64)current->fsuid,
- (__u64)current->fsgid,
- 0 /* dev_t */,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ args.uid = (__u64)current->fsuid;
+ if (inode->i_mode & S_ISGID)
+ args.gid = (__u64)inode->i_gid;
+ else
+ args.gid = (__u64)current->fsgid;
} else {
- CIFSSMBUnixSetPerms(xid, pTcon, full_path,
- mode, (__u64)-1,
- (__u64)-1, 0 /* dev_t */,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ args.uid = NO_CHANGE_64;
+ args.gid = NO_CHANGE_64;
}
+ CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
- /* BB to be implemented via Windows secrty descriptors
- eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode,
- -1, -1, local_nls); */
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
+ (mode & S_IWUGO) == 0) {
+ FILE_BASIC_INFO pInfo;
+ memset(&pInfo, 0, sizeof(pInfo));
+ pInfo.Attributes = cpu_to_le32(ATTR_READONLY);
+ CIFSSMBSetPathInfo(xid, pTcon, full_path,
+ &pInfo, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ }
if (direntry->d_inode) {
- direntry->d_inode->i_mode = mode;
- direntry->d_inode->i_mode |= S_IFDIR;
+ if (cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_DYNPERM)
+ direntry->d_inode->i_mode =
+ (mode | S_IFDIR);
+
if (cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_SET_UID) {
direntry->d_inode->i_uid =
current->fsuid;
- direntry->d_inode->i_gid =
- current->fsgid;
+ if (inode->i_mode & S_ISGID)
+ direntry->d_inode->i_gid =
+ inode->i_gid;
+ else
+ direntry->d_inode->i_gid =
+ current->fsgid;
}
}
}
@@ -1182,12 +1189,11 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
} /* if we can not get memory just leave rc as EEXIST */
}
- if (rc) {
+ if (rc)
cFYI(1, ("rename rc %d", rc));
- }
if ((rc == -EIO) || (rc == -EEXIST)) {
- int oplock = FALSE;
+ int oplock = 0;
__u16 netfid;
/* BB FIXME Is Generic Read correct for rename? */
@@ -1228,7 +1234,7 @@ int cifs_revalidate(struct dentry *direntry)
#else
time_t local_mtime;
#endif
- int invalidate_inode = FALSE;
+ bool invalidate_inode = false;
if (direntry->d_inode == NULL)
return -ENOENT;
@@ -1287,7 +1293,7 @@ int cifs_revalidate(struct dentry *direntry)
}
} else {
rc = cifs_get_inode_info(&direntry->d_inode, full_path, NULL,
- direntry->d_sb, xid);
+ direntry->d_sb, xid, NULL);
if (rc) {
cFYI(1, ("error on getting revalidate info %d", rc));
/* if (rc != -ENOENT)
@@ -1310,7 +1316,7 @@ int cifs_revalidate(struct dentry *direntry)
only ones who could have modified the file and the
server copy is staler than ours */
} else {
- invalidate_inode = TRUE;
+ invalidate_inode = true;
}
}
@@ -1332,10 +1338,11 @@ int cifs_revalidate(struct dentry *direntry)
/* if (S_ISDIR(direntry->d_inode->i_mode))
shrink_dcache_parent(direntry); */
if (S_ISREG(direntry->d_inode->i_mode)) {
- if (direntry->d_inode->i_mapping)
+ if (direntry->d_inode->i_mapping) {
wbrc = filemap_fdatawait(direntry->d_inode->i_mapping);
if (wbrc)
CIFS_I(direntry->d_inode)->write_behind_rc = wbrc;
+ }
/* may eventually have to do this for open files too */
if (list_empty(&(cifsInode->openFileList))) {
/* changed on server - flush read ahead pages */
@@ -1449,33 +1456,307 @@ out_busy:
return -ETXTBSY;
}
-int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
+static int
+cifs_set_file_size(struct inode *inode, struct iattr *attrs,
+ int xid, char *full_path)
+{
+ int rc;
+ struct cifsFileInfo *open_file;
+ struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsTconInfo *pTcon = cifs_sb->tcon;
+
+ /*
+ * To avoid spurious oplock breaks from server, in the case of
+ * inodes that we already have open, avoid doing path based
+ * setting of file size if we can do it by handle.
+ * This keeps our caching token (oplock) and avoids timeouts
+ * when the local oplock break takes longer to flush
+ * writebehind data than the SMB timeout for the SetPathInfo
+ * request would allow
+ */
+ open_file = find_writable_file(cifsInode);
+ if (open_file) {
+ __u16 nfid = open_file->netfid;
+ __u32 npid = open_file->pid;
+ rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, nfid,
+ npid, false);
+ atomic_dec(&open_file->wrtPending);
+ cFYI(1, ("SetFSize for attrs rc = %d", rc));
+ if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
+ unsigned int bytes_written;
+ rc = CIFSSMBWrite(xid, pTcon, nfid, 0, attrs->ia_size,
+ &bytes_written, NULL, NULL, 1);
+ cFYI(1, ("Wrt seteof rc %d", rc));
+ }
+ } else
+ rc = -EINVAL;
+
+ if (rc != 0) {
+ /* Set file size by pathname rather than by handle
+ either because no valid, writeable file handle for
+ it was found or because there was an error setting
+ it by handle */
+ rc = CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size,
+ false, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc));
+ if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
+ __u16 netfid;
+ int oplock = 0;
+
+ rc = SMBLegacyOpen(xid, pTcon, full_path,
+ FILE_OPEN, GENERIC_WRITE,
+ CREATE_NOT_DIR, &netfid, &oplock, NULL,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc == 0) {
+ unsigned int bytes_written;
+ rc = CIFSSMBWrite(xid, pTcon, netfid, 0,
+ attrs->ia_size,
+ &bytes_written, NULL,
+ NULL, 1);
+ cFYI(1, ("wrt seteof rc %d", rc));
+ CIFSSMBClose(xid, pTcon, netfid);
+ }
+ }
+ }
+
+ if (rc == 0) {
+ rc = cifs_vmtruncate(inode, attrs->ia_size);
+ cifs_truncate_page(inode->i_mapping, inode->i_size);
+ }
+
+ return rc;
+}
+
+static int
+cifs_set_file_info(struct inode *inode, struct iattr *attrs, int xid,
+ char *full_path, __u32 dosattr)
+{
+ int rc;
+ int oplock = 0;
+ __u16 netfid;
+ __u32 netpid;
+ bool set_time = false;
+ struct cifsFileInfo *open_file;
+ struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsTconInfo *pTcon = cifs_sb->tcon;
+ FILE_BASIC_INFO info_buf;
+
+ if (attrs->ia_valid & ATTR_ATIME) {
+ set_time = true;
+ info_buf.LastAccessTime =
+ cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_atime));
+ } else
+ info_buf.LastAccessTime = 0;
+
+ if (attrs->ia_valid & ATTR_MTIME) {
+ set_time = true;
+ info_buf.LastWriteTime =
+ cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime));
+ } else
+ info_buf.LastWriteTime = 0;
+
+ /*
+ * Samba throws this field away, but windows may actually use it.
+ * Do not set ctime unless other time stamps are changed explicitly
+ * (i.e. by utimes()) since we would then have a mix of client and
+ * server times.
+ */
+ if (set_time && (attrs->ia_valid & ATTR_CTIME)) {
+ cFYI(1, ("CIFS - CTIME changed"));
+ info_buf.ChangeTime =
+ cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime));
+ } else
+ info_buf.ChangeTime = 0;
+
+ info_buf.CreationTime = 0; /* don't change */
+ info_buf.Attributes = cpu_to_le32(dosattr);
+
+ /*
+ * If the file is already open for write, just use that fileid
+ */
+ open_file = find_writable_file(cifsInode);
+ if (open_file) {
+ netfid = open_file->netfid;
+ netpid = open_file->pid;
+ goto set_via_filehandle;
+ }
+
+ /*
+ * NT4 apparently returns success on this call, but it doesn't
+ * really work.
+ */
+ if (!(pTcon->ses->flags & CIFS_SES_NT4)) {
+ rc = CIFSSMBSetPathInfo(xid, pTcon, full_path,
+ &info_buf, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc != -EOPNOTSUPP && rc != -EINVAL)
+ goto out;
+ }
+
+ cFYI(1, ("calling SetFileInfo since SetPathInfo for "
+ "times not supported by this server"));
+ rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
+ SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
+ CREATE_NOT_DIR, &netfid, &oplock,
+ NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc != 0) {
+ if (rc == -EIO)
+ rc = -EINVAL;
+ goto out;
+ }
+
+ netpid = current->tgid;
+
+set_via_filehandle:
+ rc = CIFSSMBSetFileInfo(xid, pTcon, &info_buf, netfid, netpid);
+ if (open_file == NULL)
+ CIFSSMBClose(xid, pTcon, netfid);
+ else
+ atomic_dec(&open_file->wrtPending);
+out:
+ return rc;
+}
+
+static int
+cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
{
+ int rc;
int xid;
- struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
+ char *full_path = NULL;
+ struct inode *inode = direntry->d_inode;
+ struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsTconInfo *pTcon = cifs_sb->tcon;
+ struct cifs_unix_set_info_args *args = NULL;
+
+ cFYI(1, ("setattr_unix on file %s attrs->ia_valid=0x%x",
+ direntry->d_name.name, attrs->ia_valid));
+
+ xid = GetXid();
+
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) {
+ /* check if we have permission to change attrs */
+ rc = inode_change_ok(inode, attrs);
+ if (rc < 0)
+ goto out;
+ else
+ rc = 0;
+ }
+
+ full_path = build_path_from_dentry(direntry);
+ if (full_path == NULL) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if ((attrs->ia_valid & ATTR_MTIME) || (attrs->ia_valid & ATTR_SIZE)) {
+ /*
+ Flush data before changing file size or changing the last
+ write time of the file on the server. If the
+ flush returns error, store it to report later and continue.
+ BB: This should be smarter. Why bother flushing pages that
+ will be truncated anyway? Also, should we error out here if
+ the flush returns error?
+ */
+ rc = filemap_write_and_wait(inode->i_mapping);
+ if (rc != 0) {
+ cifsInode->write_behind_rc = rc;
+ rc = 0;
+ }
+ }
+
+ if (attrs->ia_valid & ATTR_SIZE) {
+ rc = cifs_set_file_size(inode, attrs, xid, full_path);
+ if (rc != 0)
+ goto out;
+ }
+
+ /* skip mode change if it's just for clearing setuid/setgid */
+ if (attrs->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID))
+ attrs->ia_valid &= ~ATTR_MODE;
+
+ args = kmalloc(sizeof(*args), GFP_KERNEL);
+ if (args == NULL) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* set up the struct */
+ if (attrs->ia_valid & ATTR_MODE)
+ args->mode = attrs->ia_mode;
+ else
+ args->mode = NO_CHANGE_64;
+
+ if (attrs->ia_valid & ATTR_UID)
+ args->uid = attrs->ia_uid;
+ else
+ args->uid = NO_CHANGE_64;
+
+ if (attrs->ia_valid & ATTR_GID)
+ args->gid = attrs->ia_gid;
+ else
+ args->gid = NO_CHANGE_64;
+
+ if (attrs->ia_valid & ATTR_ATIME)
+ args->atime = cifs_UnixTimeToNT(attrs->ia_atime);
+ else
+ args->atime = NO_CHANGE_64;
+
+ if (attrs->ia_valid & ATTR_MTIME)
+ args->mtime = cifs_UnixTimeToNT(attrs->ia_mtime);
+ else
+ args->mtime = NO_CHANGE_64;
+
+ if (attrs->ia_valid & ATTR_CTIME)
+ args->ctime = cifs_UnixTimeToNT(attrs->ia_ctime);
+ else
+ args->ctime = NO_CHANGE_64;
+
+ args->device = 0;
+ rc = CIFSSMBUnixSetInfo(xid, pTcon, full_path, args,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (!rc)
+ rc = inode_setattr(inode, attrs);
+out:
+ kfree(args);
+ kfree(full_path);
+ FreeXid(xid);
+ return rc;
+}
+
+static int
+cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
+{
+ int xid;
+ struct inode *inode = direntry->d_inode;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsInodeInfo *cifsInode = CIFS_I(inode);
char *full_path = NULL;
int rc = -EACCES;
- struct cifsFileInfo *open_file = NULL;
- FILE_BASIC_INFO time_buf;
- int set_time = FALSE;
- int set_dosattr = FALSE;
- __u64 mode = 0xFFFFFFFFFFFFFFFFULL;
- __u64 uid = 0xFFFFFFFFFFFFFFFFULL;
- __u64 gid = 0xFFFFFFFFFFFFFFFFULL;
- struct cifsInodeInfo *cifsInode;
+ __u32 dosattr = 0;
+ __u64 mode = NO_CHANGE_64;
xid = GetXid();
cFYI(1, ("setattr on file %s attrs->iavalid 0x%x",
direntry->d_name.name, attrs->ia_valid));
- cifs_sb = CIFS_SB(direntry->d_inode->i_sb);
- pTcon = cifs_sb->tcon;
-
if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) {
/* check if we have permission to change attrs */
- rc = inode_change_ok(direntry->d_inode, attrs);
+ rc = inode_change_ok(inode, attrs);
if (rc < 0) {
FreeXid(xid);
return rc;
@@ -1488,237 +1769,123 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
FreeXid(xid);
return -ENOMEM;
}
- cifsInode = CIFS_I(direntry->d_inode);
-
- /* BB check if we need to refresh inode from server now ? BB */
- if (attrs->ia_valid & ATTR_SIZE) {
+ if ((attrs->ia_valid & ATTR_MTIME) || (attrs->ia_valid & ATTR_SIZE)) {
/*
- Flush data before changing file size on server. If the
+ Flush data before changing file size or changing the last
+ write time of the file on the server. If the
flush returns error, store it to report later and continue.
BB: This should be smarter. Why bother flushing pages that
will be truncated anyway? Also, should we error out here if
the flush returns error?
*/
- rc = filemap_write_and_wait(direntry->d_inode->i_mapping);
+ rc = filemap_write_and_wait(inode->i_mapping);
if (rc != 0) {
- CIFS_I(direntry->d_inode)->write_behind_rc = rc;
+ cifsInode->write_behind_rc = rc;
rc = 0;
}
+ }
- /* To avoid spurious oplock breaks from server, in the case of
- inodes that we already have open, avoid doing path based
- setting of file size if we can do it by handle.
- This keeps our caching token (oplock) and avoids timeouts
- when the local oplock break takes longer to flush
- writebehind data than the SMB timeout for the SetPathInfo
- request would allow */
-
- open_file = find_writable_file(cifsInode);
- if (open_file) {
- __u16 nfid = open_file->netfid;
- __u32 npid = open_file->pid;
- rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size,
- nfid, npid, FALSE);
- atomic_dec(&open_file->wrtPending);
- cFYI(1, ("SetFSize for attrs rc = %d", rc));
- if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
- unsigned int bytes_written;
- rc = CIFSSMBWrite(xid, pTcon,
- nfid, 0, attrs->ia_size,
- &bytes_written, NULL, NULL,
- 1 /* 45 seconds */);
- cFYI(1, ("Wrt seteof rc %d", rc));
- }
- } else
- rc = -EINVAL;
-
- if (rc != 0) {
- /* Set file size by pathname rather than by handle
- either because no valid, writeable file handle for
- it was found or because there was an error setting
- it by handle */
- rc = CIFSSMBSetEOF(xid, pTcon, full_path,
- attrs->ia_size, FALSE,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc));
- if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
- __u16 netfid;
- int oplock = FALSE;
-
- rc = SMBLegacyOpen(xid, pTcon, full_path,
- FILE_OPEN,
- SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
- CREATE_NOT_DIR, &netfid, &oplock,
- NULL, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc == 0) {
- unsigned int bytes_written;
- rc = CIFSSMBWrite(xid, pTcon,
- netfid, 0,
- attrs->ia_size,
- &bytes_written, NULL,
- NULL, 1 /* 45 sec */);
- cFYI(1, ("wrt seteof rc %d", rc));
- CIFSSMBClose(xid, pTcon, netfid);
- }
-
- }
- }
-
- /* Server is ok setting allocation size implicitly - no need
- to call:
- CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, TRUE,
- cifs_sb->local_nls);
- */
-
- if (rc == 0) {
- rc = cifs_vmtruncate(direntry->d_inode, attrs->ia_size);
- cifs_truncate_page(direntry->d_inode->i_mapping,
- direntry->d_inode->i_size);
- } else
+ if (attrs->ia_valid & ATTR_SIZE) {
+ rc = cifs_set_file_size(inode, attrs, xid, full_path);
+ if (rc != 0)
goto cifs_setattr_exit;
}
- if (attrs->ia_valid & ATTR_UID) {
- cFYI(1, ("UID changed to %d", attrs->ia_uid));
- uid = attrs->ia_uid;
- }
- if (attrs->ia_valid & ATTR_GID) {
- cFYI(1, ("GID changed to %d", attrs->ia_gid));
- gid = attrs->ia_gid;
- }
- time_buf.Attributes = 0;
+ /*
+ * Without unix extensions we can't send ownership changes to the
+ * server, so silently ignore them. This is consistent with how
+ * local DOS/Windows filesystems behave (VFAT, NTFS, etc). With
+ * CIFSACL support + proper Windows to Unix idmapping, we may be
+ * able to support this in the future.
+ */
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID))
+ attrs->ia_valid &= ~(ATTR_UID | ATTR_GID);
+
if (attrs->ia_valid & ATTR_MODE) {
- cFYI(1, ("Mode changed to 0x%x", attrs->ia_mode));
+ cFYI(1, ("Mode changed to 0%o", attrs->ia_mode));
mode = attrs->ia_mode;
}
- if ((pTcon->unix_ext)
- && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID)))
- rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid,
- 0 /* dev_t */, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- else if (attrs->ia_valid & ATTR_MODE) {
+ if (attrs->ia_valid & ATTR_MODE) {
rc = 0;
- if ((mode & S_IWUGO) == 0) /* not writeable */ {
- if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
- set_dosattr = TRUE;
- time_buf.Attributes =
- cpu_to_le32(cifsInode->cifsAttrs |
- ATTR_READONLY);
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+ rc = mode_to_acl(inode, full_path, mode);
+ else
+#endif
+ if (((mode & S_IWUGO) == 0) &&
+ (cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
+
+ dosattr = cifsInode->cifsAttrs | ATTR_READONLY;
+
+ /* fix up mode if we're not using dynperm */
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ attrs->ia_mode = inode->i_mode & ~S_IWUGO;
+ } else if ((mode & S_IWUGO) &&
+ (cifsInode->cifsAttrs & ATTR_READONLY)) {
+
+ dosattr = cifsInode->cifsAttrs & ~ATTR_READONLY;
+ /* Attributes of 0 are ignored */
+ if (dosattr == 0)
+ dosattr |= ATTR_NORMAL;
+
+ /* reset local inode permissions to normal */
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
+ attrs->ia_mode &= ~(S_IALLUGO);
+ if (S_ISDIR(inode->i_mode))
+ attrs->ia_mode |=
+ cifs_sb->mnt_dir_mode;
+ else
+ attrs->ia_mode |=
+ cifs_sb->mnt_file_mode;
}
- } else if (cifsInode->cifsAttrs & ATTR_READONLY) {
- /* If file is readonly on server, we would
- not be able to write to it - so if any write
- bit is enabled for user or group or other we
- need to at least try to remove r/o dos attr */
- set_dosattr = TRUE;
- time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs &
- (~ATTR_READONLY));
- /* Windows ignores set to zero */
- if (time_buf.Attributes == 0)
- time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL);
+ } else if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
+ /* ignore mode change - ATTR_READONLY hasn't changed */
+ attrs->ia_valid &= ~ATTR_MODE;
}
- /* BB to be implemented -
- via Windows security descriptors or streams */
- /* CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, uid, gid,
- cifs_sb->local_nls); */
}
- if (attrs->ia_valid & ATTR_ATIME) {
- set_time = TRUE;
- time_buf.LastAccessTime =
- cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_atime));
- } else
- time_buf.LastAccessTime = 0;
-
- if (attrs->ia_valid & ATTR_MTIME) {
- set_time = TRUE;
- time_buf.LastWriteTime =
- cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime));
- } else
- time_buf.LastWriteTime = 0;
- /* Do not set ctime explicitly unless other time
- stamps are changed explicitly (i.e. by utime()
- since we would then have a mix of client and
- server times */
-
- if (set_time && (attrs->ia_valid & ATTR_CTIME)) {
- set_time = TRUE;
- /* Although Samba throws this field away
- it may be useful to Windows - but we do
- not want to set ctime unless some other
- timestamp is changing */
- cFYI(1, ("CIFS - CTIME changed"));
- time_buf.ChangeTime =
- cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime));
- } else
- time_buf.ChangeTime = 0;
-
- if (set_time || set_dosattr) {
- time_buf.CreationTime = 0; /* do not change */
- /* In the future we should experiment - try setting timestamps
- via Handle (SetFileInfo) instead of by path */
- if (!(pTcon->ses->flags & CIFS_SES_NT4))
- rc = CIFSSMBSetTimes(xid, pTcon, full_path, &time_buf,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- else
- rc = -EOPNOTSUPP;
+ if (attrs->ia_valid & (ATTR_MTIME|ATTR_ATIME|ATTR_CTIME) ||
+ ((attrs->ia_valid & ATTR_MODE) && dosattr)) {
+ rc = cifs_set_file_info(inode, attrs, xid, full_path, dosattr);
+ /* BB: check for rc = -EOPNOTSUPP and switch to legacy mode */
- if (rc == -EOPNOTSUPP) {
- int oplock = FALSE;
- __u16 netfid;
-
- cFYI(1, ("calling SetFileInfo since SetPathInfo for "
- "times not supported by this server"));
- /* BB we could scan to see if we already have it open
- and pass in pid of opener to function */
- rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
- SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
- CREATE_NOT_DIR, &netfid, &oplock,
- NULL, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc == 0) {
- rc = CIFSSMBSetFileTimes(xid, pTcon, &time_buf,
- netfid);
- CIFSSMBClose(xid, pTcon, netfid);
- } else {
- /* BB For even older servers we could convert time_buf
- into old DOS style which uses two second
- granularity */
-
- /* rc = CIFSSMBSetTimesLegacy(xid, pTcon, full_path,
- &time_buf, cifs_sb->local_nls); */
- }
- }
/* Even if error on time set, no sense failing the call if
the server would set the time to a reasonable value anyway,
and this check ensures that we are not being called from
sys_utimes in which case we ought to fail the call back to
the user when the server rejects the call */
if ((rc) && (attrs->ia_valid &
- (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE)))
+ (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE)))
rc = 0;
}
/* do not need local check to inode_check_ok since the server does
that */
if (!rc)
- rc = inode_setattr(direntry->d_inode, attrs);
+ rc = inode_setattr(inode, attrs);
cifs_setattr_exit:
kfree(full_path);
FreeXid(xid);
return rc;
}
+int
+cifs_setattr(struct dentry *direntry, struct iattr *attrs)
+{
+ struct inode *inode = direntry->d_inode;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsTconInfo *pTcon = cifs_sb->tcon;
+
+ if (pTcon->unix_ext)
+ return cifs_setattr_unix(direntry, attrs);
+
+ return cifs_setattr_nounix(direntry, attrs);
+
+ /* BB: add cifs_setattr_legacy for really old servers */
+}
+
#if 0
void cifs_delete_inode(struct inode *inode)
{
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index f36733f..46f0281 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -39,7 +39,7 @@
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
#endif
-int cifs_ioctl (struct inode *inode, struct file *filep,
+int cifs_ioctl(struct inode *inode, struct file *filep,
unsigned int command, unsigned long arg)
{
int rc = -ENOTTY; /* strange error - but the precedent */
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index f161af7..b554fce 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/link.c
*
- * Copyright (C) International Business Machines Corp., 2002,2003
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -221,7 +221,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newinode, full_path, NULL,
- inode->i_sb, xid);
+ inode->i_sb, xid, NULL);
if (rc != 0) {
cFYI(1, ("Create symlink ok, getinodeinfo fail rc = %d",
@@ -246,14 +246,11 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
struct inode *inode = direntry->d_inode;
int rc = -EACCES;
int xid;
- int oplock = FALSE;
+ int oplock = 0;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
char *full_path = NULL;
- char *tmp_path = NULL;
char *tmpbuffer;
- unsigned char *referrals = NULL;
- unsigned int num_referrals = 0;
int len;
__u16 fid;
@@ -313,43 +310,9 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
cFYI(1, ("Error closing junction point "
"(open for ioctl)"));
}
- if (rc == -EIO) {
- /* Query if DFS Junction */
- tmp_path =
- kmalloc(MAX_TREE_SIZE + MAX_PATHCONF + 1,
- GFP_KERNEL);
- if (tmp_path) {
- strncpy(tmp_path, pTcon->treeName,
- MAX_TREE_SIZE);
- strncat(tmp_path, full_path,
- MAX_PATHCONF);
- rc = get_dfs_path(xid, pTcon->ses,
- tmp_path,
- cifs_sb->local_nls,
- &num_referrals, &referrals,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- cFYI(1, ("Get DFS for %s rc = %d ",
- tmp_path, rc));
- if ((num_referrals == 0) && (rc == 0))
- rc = -EACCES;
- else {
- cFYI(1, ("num referral: %d",
- num_referrals));
- if (referrals) {
- cFYI(1,("referral string: %s", referrals));
- strncpy(tmpbuffer,
- referrals,
- len-1);
- }
- }
- kfree(referrals);
- kfree(tmp_path);
-}
- /* BB add code like else decode referrals
- then memcpy to tmpbuffer and free referrals
- string array BB */
- }
+ /* If it is a DFS junction earlier we would have gotten
+ PATH_NOT_COVERED returned from server so we do
+ not need to request the DFS info here */
}
}
/* BB Anything else to do to handle recursive links? */
diff --git a/fs/cifs/md4.c b/fs/cifs/md4.c
index a2415c1..a725c26 100644
--- a/fs/cifs/md4.c
+++ b/fs/cifs/md4.c
@@ -56,7 +56,7 @@ lshift(__u32 x, int s)
/* this applies md4 to 64 byte chunks */
static void
-mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D)
+mdfour64(__u32 *M, __u32 *A, __u32 *B, __u32 *C, __u32 *D)
{
int j;
__u32 AA, BB, CC, DD;
@@ -137,7 +137,7 @@ mdfour64(__u32 * M, __u32 * A, __u32 *B, __u32 * C, __u32 *D)
}
static void
-copy64(__u32 * M, unsigned char *in)
+copy64(__u32 *M, unsigned char *in)
{
int i;
diff --git a/fs/cifs/md5.c b/fs/cifs/md5.c
index e5c3e12..462bbfe 100644
--- a/fs/cifs/md5.c
+++ b/fs/cifs/md5.c
@@ -161,7 +161,7 @@ MD5Final(unsigned char digest[16], struct MD5Context *ctx)
/* This is the central step in the MD5 algorithm. */
#define MD5STEP(f, w, x, y, z, data, s) \
- ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+ (w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x)
/*
* The core of the MD5 algorithm, this alters an existing MD5 hash to
@@ -276,8 +276,8 @@ hmac_md5_init_rfc2104(unsigned char *key, int key_len,
}
/* start out by storing key in pads */
- memset(ctx->k_ipad, 0, sizeof (ctx->k_ipad));
- memset(ctx->k_opad, 0, sizeof (ctx->k_opad));
+ memset(ctx->k_ipad, 0, sizeof(ctx->k_ipad));
+ memset(ctx->k_opad, 0, sizeof(ctx->k_opad));
memcpy(ctx->k_ipad, key, key_len);
memcpy(ctx->k_opad, key, key_len);
@@ -302,13 +302,12 @@ hmac_md5_init_limK_to_64(const unsigned char *key, int key_len,
int i;
/* if key is longer than 64 bytes truncate it */
- if (key_len > 64) {
+ if (key_len > 64)
key_len = 64;
- }
/* start out by storing key in pads */
- memset(ctx->k_ipad, 0, sizeof (ctx->k_ipad));
- memset(ctx->k_opad, 0, sizeof (ctx->k_opad));
+ memset(ctx->k_ipad, 0, sizeof(ctx->k_ipad));
+ memset(ctx->k_opad, 0, sizeof(ctx->k_opad));
memcpy(ctx->k_ipad, key, key_len);
memcpy(ctx->k_opad, key, key_len);
@@ -359,9 +358,9 @@ hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
{
struct HMACMD5Context ctx;
hmac_md5_init_limK_to_64(key, 16, &ctx);
- if (data_len != 0) {
+ if (data_len != 0)
hmac_md5_update(data, data_len, &ctx);
- }
+
hmac_md5_final(digest, &ctx);
}
#endif
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 0b132fb..d72b6c8 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/misc.c
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -81,7 +81,7 @@ sesInfoAlloc(void)
{
struct cifsSesInfo *ret_buf;
- ret_buf = kzalloc(sizeof (struct cifsSesInfo), GFP_KERNEL);
+ ret_buf = kzalloc(sizeof(struct cifsSesInfo), GFP_KERNEL);
if (ret_buf) {
write_lock(&GlobalSMBSeslock);
atomic_inc(&sesInfoAllocCount);
@@ -117,7 +117,7 @@ struct cifsTconInfo *
tconInfoAlloc(void)
{
struct cifsTconInfo *ret_buf;
- ret_buf = kzalloc(sizeof (struct cifsTconInfo), GFP_KERNEL);
+ ret_buf = kzalloc(sizeof(struct cifsTconInfo), GFP_KERNEL);
if (ret_buf) {
write_lock(&GlobalSMBSeslock);
atomic_inc(&tconInfoAllocCount);
@@ -181,7 +181,6 @@ cifs_buf_get(void)
void
cifs_buf_release(void *buf_to_free)
{
-
if (buf_to_free == NULL) {
/* cFYI(1, ("Null buffer passed to cifs_buf_release"));*/
return;
@@ -324,7 +323,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
memset(temp, 0, 256); /* bigger than MAX_CIFS_HDR_SIZE */
buffer->smb_buf_length =
- (2 * word_count) + sizeof (struct smb_hdr) -
+ (2 * word_count) + sizeof(struct smb_hdr) -
4 /* RFC 1001 length field does not count */ +
2 /* for bcc field itself */ ;
/* Note that this is the only network field that has to be converted
@@ -346,9 +345,9 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
if (treeCon->ses) {
if (treeCon->ses->capabilities & CAP_UNICODE)
buffer->Flags2 |= SMBFLG2_UNICODE;
- if (treeCon->ses->capabilities & CAP_STATUS32) {
+ if (treeCon->ses->capabilities & CAP_STATUS32)
buffer->Flags2 |= SMBFLG2_ERR_STATUS;
- }
+
/* Uid is not converted */
buffer->Uid = treeCon->ses->Suid;
buffer->Mid = GetNextMid(treeCon->ses->server);
@@ -448,8 +447,8 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length)
__u32 clc_len; /* calculated length */
cFYI(0, ("checkSMB Length: 0x%x, smb_buf_length: 0x%x", length, len));
- if (length < 2 + sizeof (struct smb_hdr)) {
- if ((length >= sizeof (struct smb_hdr) - 1)
+ if (length < 2 + sizeof(struct smb_hdr)) {
+ if ((length >= sizeof(struct smb_hdr) - 1)
&& (smb->Status.CifsError != 0)) {
smb->WordCount = 0;
/* some error cases do not return wct and bcc */
@@ -522,7 +521,8 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length)
}
return 0;
}
-int
+
+bool
is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
{
struct smb_com_lock_req *pSMB = (struct smb_com_lock_req *)buf;
@@ -544,21 +544,20 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
pnotify = (struct file_notify_information *)
((char *)&pSMBr->hdr.Protocol + data_offset);
cFYI(1, ("dnotify on %s Action: 0x%x",
- pnotify->FileName,
- pnotify->Action)); /* BB removeme BB */
+ pnotify->FileName, pnotify->Action));
/* cifs_dump_mem("Rcvd notify Data: ",buf,
sizeof(struct smb_hdr)+60); */
- return TRUE;
+ return true;
}
if (pSMBr->hdr.Status.CifsError) {
cFYI(1, ("notify err 0x%d",
pSMBr->hdr.Status.CifsError));
- return TRUE;
+ return true;
}
- return FALSE;
+ return false;
}
if (pSMB->hdr.Command != SMB_COM_LOCKING_ANDX)
- return FALSE;
+ return false;
if (pSMB->hdr.Flags & SMBFLG_RESPONSE) {
/* no sense logging error on invalid handle on oplock
break - harmless race between close request and oplock
@@ -567,21 +566,21 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
if ((NT_STATUS_INVALID_HANDLE) ==
le32_to_cpu(pSMB->hdr.Status.CifsError)) {
cFYI(1, ("invalid handle on oplock break"));
- return TRUE;
+ return true;
} else if (ERRbadfid ==
le16_to_cpu(pSMB->hdr.Status.DosError.Error)) {
- return TRUE;
+ return true;
} else {
- return FALSE; /* on valid oplock brk we get "request" */
+ return false; /* on valid oplock brk we get "request" */
}
}
if (pSMB->hdr.WordCount != 8)
- return FALSE;
+ return false;
cFYI(1, ("oplock type 0x%d level 0x%d",
pSMB->LockType, pSMB->OplockLevel));
if (!(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE))
- return FALSE;
+ return false;
/* look up tcon based on tid & uid */
read_lock(&GlobalSMBSeslock);
@@ -599,11 +598,11 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
("file id match, oplock break"));
pCifsInode =
CIFS_I(netfile->pInode);
- pCifsInode->clientCanCacheAll = FALSE;
+ pCifsInode->clientCanCacheAll = false;
if (pSMB->OplockLevel == 0)
pCifsInode->clientCanCacheRead
- = FALSE;
- pCifsInode->oplockPending = TRUE;
+ = false;
+ pCifsInode->oplockPending = true;
AllocOplockQEntry(netfile->pInode,
netfile->netfid,
tcon);
@@ -611,17 +610,17 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
("about to wake up oplock thread"));
if (oplockThread)
wake_up_process(oplockThread);
- return TRUE;
+ return true;
}
}
read_unlock(&GlobalSMBSeslock);
cFYI(1, ("No matching file for oplock break"));
- return TRUE;
+ return true;
}
}
read_unlock(&GlobalSMBSeslock);
cFYI(1, ("Can not process oplock break for non-existent connection"));
- return TRUE;
+ return true;
}
void
@@ -636,7 +635,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
buffer = (unsigned char *) smb_buf;
for (i = 0, j = 0; i < smb_buf_length; i++, j++) {
- if (i % 8 == 0) { /* have reached the beginning of line */
+ if (i % 8 == 0) {
+ /* have reached the beginning of line */
printk(KERN_DEBUG "| ");
j = 0;
}
@@ -647,7 +647,8 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
else
debug_line[1 + (2 * j)] = '_';
- if (i % 8 == 7) { /* reached end of line, time to print ascii */
+ if (i % 8 == 7) {
+ /* reached end of line, time to print ascii */
debug_line[16] = 0;
printk(" | %s\n", debug_line);
}
@@ -657,7 +658,7 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
debug_line[2 * j] = ' ';
debug_line[1 + (2 * j)] = ' ';
}
- printk( " | %s\n", debug_line);
+ printk(" | %s\n", debug_line);
return;
}
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 173ed1c..808dff2 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/netmisc.c
*
- * Copyright (c) International Business Machines Corp., 2002
+ * Copyright (c) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Error mapping routines from Samba libsmb/errormap.c
@@ -132,56 +132,22 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
{0, 0}
};
-
-/* if the mount helper is missing we need to reverse the 1st slash
- from '/' to backslash in order to format the UNC properly for
- ip address parsing and for tree connect (unless the user
- remembered to put the UNC name in properly). Fortunately we do
- not have to call this twice (we check for IPv4 addresses
- first, so it is already converted by the time we
- try IPv6 addresses */
-static int canonicalize_unc(char *cp)
-{
- int i;
-
- for (i = 0; i <= 46 /* INET6_ADDRSTRLEN */ ; i++) {
- if (cp[i] == 0)
- break;
- if (cp[i] == '\\')
- break;
- if (cp[i] == '/') {
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("change slash to backslash in malformed UNC"));
-#endif
- cp[i] = '\\';
- return 1;
- }
- }
- return 0;
-}
-
/* Convert string containing dotted ip address to binary form */
/* returns 0 if invalid address */
int
-cifs_inet_pton(int address_family, char *cp, void *dst)
+cifs_inet_pton(const int address_family, const char *cp, void *dst)
{
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
int ret = 0;
/* calculate length by finding first slash or NULL */
- if (address_family == AF_INET) {
+ if (address_family == AF_INET)
ret = in4_pton(cp, -1 /* len */, dst, '\\', NULL);
- if (ret == 0) {
- if (canonicalize_unc(cp))
- ret = in4_pton(cp, -1, dst, '\\', NULL);
- }
- } else if (address_family == AF_INET6) {
+ else if (address_family == AF_INET6)
ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);
- }
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("address conversion returned %d for %s", ret, cp));
-#endif
+
+ cFYI(DBG2, ("address conversion returned %d for %s", ret, cp));
if (ret > 0)
ret = 1;
return ret;
@@ -204,7 +170,7 @@ cifs_inet_pton(int address_family, char *cp, void *dst)
temp = *cp;
- while (TRUE) {
+ while (true) {
if (!isdigit(temp))
return 0;
@@ -236,8 +202,6 @@ cifs_inet_pton(int address_family, char *cp, void *dst)
if (temp != '\\') {
if (temp != '/')
return 0;
- else
- (*cp = '\\'); /* switch the slash the expected way */
}
if (value > addr_class_max[end - bytes])
return 0;
@@ -314,7 +278,8 @@ static const struct {
ERRDOS, 87, NT_STATUS_INVALID_PARAMETER_MIX}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_QUOTA_LOWER}, {
ERRHRD, ERRgeneral, NT_STATUS_DISK_CORRUPT_ERROR}, {
- ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, { /* mapping changed since shell does lookup on * and expects file not found */
+ /* mapping changed since shell does lookup on * expects FileNotFound */
+ ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_INVALID}, {
ERRDOS, ERRbadfile, NT_STATUS_OBJECT_NAME_NOT_FOUND}, {
ERRDOS, ERRalreadyexists, NT_STATUS_OBJECT_NAME_COLLISION}, {
ERRHRD, ERRgeneral, NT_STATUS_HANDLE_NOT_WAITABLE}, {
@@ -831,7 +796,7 @@ cifs_print_status(__u32 status_code)
static void
-ntstatus_to_dos(__u32 ntstatus, __u8 * eclass, __u16 * ecode)
+ntstatus_to_dos(__u32 ntstatus, __u8 *eclass, __u16 *ecode)
{
int i;
if (ntstatus == 0) {
@@ -881,11 +846,12 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
/* old style errors */
/* DOS class smb error codes - map DOS */
- if (smberrclass == ERRDOS) { /* 1 byte field no need to byte reverse */
+ if (smberrclass == ERRDOS) {
+ /* 1 byte field no need to byte reverse */
for (i = 0;
i <
- sizeof (mapping_table_ERRDOS) /
- sizeof (struct smb_to_posix_error); i++) {
+ sizeof(mapping_table_ERRDOS) /
+ sizeof(struct smb_to_posix_error); i++) {
if (mapping_table_ERRDOS[i].smb_err == 0)
break;
else if (mapping_table_ERRDOS[i].smb_err ==
@@ -895,11 +861,12 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
}
/* else try next error mapping one to see if match */
}
- } else if (smberrclass == ERRSRV) { /* server class of error codes */
+ } else if (smberrclass == ERRSRV) {
+ /* server class of error codes */
for (i = 0;
i <
- sizeof (mapping_table_ERRSRV) /
- sizeof (struct smb_to_posix_error); i++) {
+ sizeof(mapping_table_ERRSRV) /
+ sizeof(struct smb_to_posix_error); i++) {
if (mapping_table_ERRSRV[i].smb_err == 0)
break;
else if (mapping_table_ERRSRV[i].smb_err ==
@@ -928,14 +895,14 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
unsigned int
smbCalcSize(struct smb_hdr *ptr)
{
- return (sizeof (struct smb_hdr) + (2 * ptr->WordCount) +
+ return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
2 /* size of the bcc field */ + BCC(ptr));
}
unsigned int
smbCalcSize_LE(struct smb_hdr *ptr)
{
- return (sizeof (struct smb_hdr) + (2 * ptr->WordCount) +
+ return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
2 /* size of the bcc field */ + le16_to_cpu(BCC_LE(ptr)));
}
@@ -985,8 +952,8 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
{
struct timespec ts;
int sec, min, days, month, year;
- SMB_TIME * st = (SMB_TIME *)&time;
- SMB_DATE * sd = (SMB_DATE *)&date;
+ SMB_TIME *st = (SMB_TIME *)&time;
+ SMB_DATE *sd = (SMB_DATE *)&date;
cFYI(1, ("date %d time %d", date, time));
@@ -1000,8 +967,11 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
cERROR(1, ("illegal hours %d", st->Hours));
days = sd->Day;
month = sd->Month;
- if ((days > 31) || (month > 12))
+ if ((days > 31) || (month > 12)) {
cERROR(1, ("illegal date, month %d day: %d", month, days));
+ if (month > 12)
+ month = 12;
+ }
month -= 1;
days += total_days_of_prev_months[month];
days += 3652; /* account for difference in days between 1980 and 1970 */
diff --git a/fs/cifs/ntlmssp.h b/fs/cifs/ntlmssp.h
index 7170a9b..c377d80 100644
--- a/fs/cifs/ntlmssp.h
+++ b/fs/cifs/ntlmssp.h
@@ -64,7 +64,7 @@ typedef struct _SECURITY_BUFFER {
} __attribute__((packed)) SECURITY_BUFFER;
typedef struct _NEGOTIATE_MESSAGE {
- __u8 Signature[sizeof (NTLMSSP_SIGNATURE)];
+ __u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* 1 */
__le32 NegotiateFlags;
SECURITY_BUFFER DomainName; /* RFC 1001 style and ASCII */
@@ -74,7 +74,7 @@ typedef struct _NEGOTIATE_MESSAGE {
} __attribute__((packed)) NEGOTIATE_MESSAGE, *PNEGOTIATE_MESSAGE;
typedef struct _CHALLENGE_MESSAGE {
- __u8 Signature[sizeof (NTLMSSP_SIGNATURE)];
+ __u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* 2 */
SECURITY_BUFFER TargetName;
__le32 NegotiateFlags;
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 38ca3fc..e57475d 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -3,7 +3,7 @@
*
* Directory search handling
*
- * Copyright (C) International Business Machines Corp., 2004, 2007
+ * Copyright (C) International Business Machines Corp., 2004, 2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -43,17 +43,18 @@ static void dump_cifs_file_struct(struct file *file, char *label)
cFYI(1, ("empty cifs private file data"));
return;
}
- if (cf->invalidHandle) {
+ if (cf->invalidHandle)
cFYI(1, ("invalid handle"));
- }
- if (cf->srch_inf.endOfSearch) {
+ if (cf->srch_inf.endOfSearch)
cFYI(1, ("end of search"));
- }
- if (cf->srch_inf.emptyDir) {
+ if (cf->srch_inf.emptyDir)
cFYI(1, ("empty dir"));
- }
}
}
+#else
+static inline void dump_cifs_file_struct(struct file *file, char *label)
+{
+}
#endif /* DEBUG2 */
/* Returns one if new inode created (which therefore needs to be hashed) */
@@ -158,7 +159,7 @@ static void AdjustForTZ(struct cifsTconInfo *tcon, struct inode *inode)
static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
- char *buf, int *pobject_type, int isNewInode)
+ char *buf, unsigned int *pobject_type, int isNewInode)
{
loff_t local_size;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
@@ -173,6 +174,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
__u32 attr;
__u64 allocation_size;
__u64 end_of_file;
+ umode_t default_mode;
/* save mtime and size */
local_mtime = tmp_inode->i_mtime;
@@ -192,7 +194,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
} else { /* legacy, OS2 and DOS style */
/* struct timespec ts;*/
- FIND_FILE_STANDARD_INFO * pfindData =
+ FIND_FILE_STANDARD_INFO *pfindData =
(FIND_FILE_STANDARD_INFO *)buf;
tmp_inode->i_mtime = cnvrtDosUnixTm(
@@ -213,7 +215,13 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
/* Linux can not store file creation time unfortunately so ignore it */
cifsInfo->cifsAttrs = attr;
- cifsInfo->time = jiffies;
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
+ /* get more accurate mode via ACL - so force inode refresh */
+ cifsInfo->time = 0;
+ } else
+#endif /* CONFIG_CIFS_EXPERIMENTAL */
+ cifsInfo->time = jiffies;
/* treat dos attribute of read-only as read-only mode bit e.g. 555? */
/* 2767 perms - indicate mandatory locking */
@@ -222,54 +230,58 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
if (atomic_read(&cifsInfo->inUse) == 0) {
tmp_inode->i_uid = cifs_sb->mnt_uid;
tmp_inode->i_gid = cifs_sb->mnt_gid;
- /* set default mode. will override for dirs below */
- tmp_inode->i_mode = cifs_sb->mnt_file_mode;
- } else {
- /* mask off the type bits since it gets set
- below and we do not want to get two type
- bits set */
+ }
+
+ if (attr & ATTR_DIRECTORY)
+ default_mode = cifs_sb->mnt_dir_mode;
+ else
+ default_mode = cifs_sb->mnt_file_mode;
+
+ /* set initial permissions */
+ if ((atomic_read(&cifsInfo->inUse) == 0) ||
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ tmp_inode->i_mode = default_mode;
+ else {
+ /* just reenable write bits if !ATTR_READONLY */
+ if ((tmp_inode->i_mode & S_IWUGO) == 0 &&
+ (attr & ATTR_READONLY) == 0)
+ tmp_inode->i_mode |= (S_IWUGO & default_mode);
+
tmp_inode->i_mode &= ~S_IFMT;
}
- if (attr & ATTR_DIRECTORY) {
- *pobject_type = DT_DIR;
- /* override default perms since we do not lock dirs */
- if (atomic_read(&cifsInfo->inUse) == 0) {
- tmp_inode->i_mode = cifs_sb->mnt_dir_mode;
- }
- tmp_inode->i_mode |= S_IFDIR;
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
- (attr & ATTR_SYSTEM)) {
+ /* clear write bits if ATTR_READONLY is set */
+ if (attr & ATTR_READONLY)
+ tmp_inode->i_mode &= ~S_IWUGO;
+
+ /* set inode type */
+ if ((attr & ATTR_SYSTEM) &&
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) {
if (end_of_file == 0) {
- *pobject_type = DT_FIFO;
tmp_inode->i_mode |= S_IFIFO;
+ *pobject_type = DT_FIFO;
} else {
- /* rather than get the type here, we mark the
- inode as needing revalidate and get the real type
- (blk vs chr vs. symlink) later ie in lookup */
- *pobject_type = DT_REG;
+ /*
+ * trying to get the type can be slow, so just call
+ * this a regular file for now, and mark for reval
+ */
tmp_inode->i_mode |= S_IFREG;
+ *pobject_type = DT_REG;
cifsInfo->time = 0;
}
-/* we no longer mark these because we could not follow them */
-/* } else if (attr & ATTR_REPARSE) {
- *pobject_type = DT_LNK;
- tmp_inode->i_mode |= S_IFLNK; */
} else {
- *pobject_type = DT_REG;
- tmp_inode->i_mode |= S_IFREG;
- if (attr & ATTR_READONLY)
- tmp_inode->i_mode &= ~(S_IWUGO);
- else if ((tmp_inode->i_mode & S_IWUGO) == 0)
- /* the ATTR_READONLY flag may have been changed on */
- /* server -- set any w bits allowed by mnt_file_mode */
- tmp_inode->i_mode |= (S_IWUGO & cifs_sb->mnt_file_mode);
- } /* could add code here - to validate if device or weird share type? */
+ if (attr & ATTR_DIRECTORY) {
+ tmp_inode->i_mode |= S_IFDIR;
+ *pobject_type = DT_DIR;
+ } else {
+ tmp_inode->i_mode |= S_IFREG;
+ *pobject_type = DT_REG;
+ }
+ }
/* can not fill in nlink here as in qpathinfo version and Unx search */
- if (atomic_read(&cifsInfo->inUse) == 0) {
+ if (atomic_read(&cifsInfo->inUse) == 0)
atomic_set(&cifsInfo->inUse, 1);
- }
spin_lock(&tmp_inode->i_lock);
if (is_size_safe_to_change(cifsInfo, end_of_file)) {
@@ -336,7 +348,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
}
static void unix_fill_in_inode(struct inode *tmp_inode,
- FILE_UNIX_INFO *pfindData, int *pobject_type, int isNewInode)
+ FILE_UNIX_INFO *pfindData, unsigned int *pobject_type, int isNewInode)
{
loff_t local_size;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
@@ -488,8 +500,8 @@ static int initiate_cifs_search(const int xid, struct file *file)
if (file->private_data == NULL)
return -ENOMEM;
cifsFile = file->private_data;
- cifsFile->invalidHandle = TRUE;
- cifsFile->srch_inf.endOfSearch = FALSE;
+ cifsFile->invalidHandle = true;
+ cifsFile->srch_inf.endOfSearch = false;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
cifs_sb = CIFS_SB(file->f_dentry->d_sb);
@@ -513,9 +525,8 @@ static int initiate_cifs_search(const int xid, struct file *file)
full_path = build_path_from_dentry(file->f_path.dentry);
#endif
- if (full_path == NULL) {
+ if (full_path == NULL)
return -ENOMEM;
- }
cFYI(1, ("Full path: %s start at: %lld", full_path, file->f_pos));
@@ -523,9 +534,9 @@ ffirst_retry:
/* test for Unix extensions */
/* but now check for them on the share/mount not on the SMB session */
/* if (pTcon->ses->capabilities & CAP_UNIX) { */
- if (pTcon->unix_ext) {
+ if (pTcon->unix_ext)
cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX;
- } else if ((pTcon->ses->capabilities &
+ else if ((pTcon->ses->capabilities &
(CAP_NT_SMBS | CAP_NT_FIND)) == 0) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD;
} else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
@@ -539,7 +550,7 @@ ffirst_retry:
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb));
if (rc == 0)
- cifsFile->invalidHandle = FALSE;
+ cifsFile->invalidHandle = false;
if ((rc == -EOPNOTSUPP) &&
(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
@@ -553,7 +564,7 @@ ffirst_retry:
static int cifs_unicode_bytelen(char *str)
{
int len;
- __le16 * ustr = (__le16 *)str;
+ __le16 *ustr = (__le16 *)str;
for (len = 0; len <= PATH_MAX; len++) {
if (ustr[len] == 0)
@@ -566,10 +577,10 @@ static int cifs_unicode_bytelen(char *str)
static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
{
char *new_entry;
- FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry;
+ FILE_DIRECTORY_INFO *pDirInfo = (FILE_DIRECTORY_INFO *)old_entry;
if (level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO * pfData;
+ FIND_FILE_STANDARD_INFO *pfData;
pfData = (FIND_FILE_STANDARD_INFO *)pDirInfo;
new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) +
@@ -605,7 +616,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
int len = 0;
if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) {
- FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
+ FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
filename = &pFindData->FileName[0];
if (cfile->srch_inf.unicode) {
len = cifs_unicode_bytelen(filename);
@@ -614,30 +625,30 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
len = strnlen(filename, 5);
}
} else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO * pFindData =
+ FILE_DIRECTORY_INFO *pFindData =
(FILE_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
} else if (cfile->srch_inf.info_level ==
SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO * pFindData =
+ FILE_FULL_DIRECTORY_INFO *pFindData =
(FILE_FULL_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
} else if (cfile->srch_inf.info_level ==
SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO * pFindData =
+ SEARCH_ID_FULL_DIR_INFO *pFindData =
(SEARCH_ID_FULL_DIR_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
} else if (cfile->srch_inf.info_level ==
SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO * pFindData =
+ FILE_BOTH_DIRECTORY_INFO *pFindData =
(FILE_BOTH_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
} else if (cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO * pFindData =
+ FIND_FILE_STANDARD_INFO *pFindData =
(FIND_FILE_STANDARD_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = pFindData->FileNameLength;
@@ -722,18 +733,17 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
. and .. for the root of a drive and for those we need
to start two entries earlier */
-#ifdef CONFIG_CIFS_DEBUG2
dump_cifs_file_struct(file, "In fce ");
-#endif
if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) &&
is_dir_changed(file)) ||
(index_to_find < first_entry_in_buffer)) {
/* close and restart search */
cFYI(1, ("search backing up - close and restart search"));
- cifsFile->invalidHandle = TRUE;
- CIFSFindClose(xid, pTcon, cifsFile->netfid);
- kfree(cifsFile->search_resume_name);
- cifsFile->search_resume_name = NULL;
+ if (!cifsFile->srch_inf.endOfSearch &&
+ !cifsFile->invalidHandle) {
+ cifsFile->invalidHandle = true;
+ CIFSFindClose(xid, pTcon, cifsFile->netfid);
+ }
if (cifsFile->srch_inf.ntwrk_buf_start) {
cFYI(1, ("freeing SMB ff cache buf on search rewind"));
if (cifsFile->srch_inf.smallBuf)
@@ -742,6 +752,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
else
cifs_buf_release(cifsFile->srch_inf.
ntwrk_buf_start);
+ cifsFile->srch_inf.ntwrk_buf_start = NULL;
}
rc = initiate_cifs_search(xid, file);
if (rc) {
@@ -752,7 +763,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
}
while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
- (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)) {
+ (rc == 0) && !cifsFile->srch_inf.endOfSearch) {
cFYI(1, ("calling findnext2"));
rc = CIFSFindNext(xid, pTcon, cifsFile->netfid,
&cifsFile->srch_inf);
@@ -774,7 +785,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
pos_in_buf = index_to_find - first_entry_in_buffer;
cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf));
- for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) {
+ for (i = 0; (i < (pos_in_buf)) && (current_entry != NULL); i++) {
/* go entry by entry figuring out which is first */
current_entry = nxt_dir_entry(current_entry, end_of_smb,
cifsFile->srch_inf.info_level);
@@ -849,7 +860,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst,
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
} else if (level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO * pFindData =
+ FIND_FILE_STANDARD_INFO *pFindData =
(FIND_FILE_STANDARD_INFO *)current_entry;
filename = &pFindData->FileName[0];
/* one byte length, no name conversion */
@@ -888,7 +899,7 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
int rc = 0;
struct qstr qstring;
struct cifsFileInfo *pCifsF;
- unsigned obj_type;
+ unsigned int obj_type;
ino_t inum;
struct cifs_sb_info *cifs_sb;
struct inode *tmp_inode;
@@ -988,7 +999,7 @@ static int cifs_save_resume_key(const char *current_entry,
level = cifsFile->srch_inf.info_level;
if (level == SMB_FIND_FILE_UNIX) {
- FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
+ FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
filename = &pFindData->FileName[0];
if (cifsFile->srch_inf.unicode) {
@@ -1122,11 +1133,9 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
break;
}
} /* else {
- cifsFile->invalidHandle = TRUE;
+ cifsFile->invalidHandle = true;
CIFSFindClose(xid, pTcon, cifsFile->netfid);
- }
- kfree(cifsFile->search_resume_name);
- cifsFile->search_resume_name = NULL; */
+ } */
rc = find_cifs_entry(xid, pTcon, file,
¤t_entry, &num_to_fill);
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index e1f6b34..7606bb4 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -30,6 +30,7 @@
#include "ntlmssp.h"
#include "nterr.h"
#include <linux/utsname.h>
+#include "cifs_spnego.h"
extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
unsigned char *p24);
@@ -75,6 +76,57 @@ static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB)
return capabilities;
}
+static void
+unicode_oslm_strings(char **pbcc_area, const struct nls_table *nls_cp)
+{
+ char *bcc_ptr = *pbcc_area;
+ int bytes_ret = 0;
+
+ /* Copy OS version */
+ bytes_ret = cifs_strtoUCS((__le16 *)bcc_ptr, "Linux version ", 32,
+ nls_cp);
+ bcc_ptr += 2 * bytes_ret;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)
+ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, init_utsname()->release,
+ 32, nls_cp);
+#else
+ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release,
+ 32, nls_cp);
+#endif
+ bcc_ptr += 2 * bytes_ret;
+ bcc_ptr += 2; /* trailing null */
+
+ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS,
+ 32, nls_cp);
+ bcc_ptr += 2 * bytes_ret;
+ bcc_ptr += 2; /* trailing null */
+
+ *pbcc_area = bcc_ptr;
+}
+
+static void unicode_domain_string(char **pbcc_area, struct cifsSesInfo *ses,
+ const struct nls_table *nls_cp)
+{
+ char *bcc_ptr = *pbcc_area;
+ int bytes_ret = 0;
+
+ /* copy domain */
+ if (ses->domainName == NULL) {
+ /* Sending null domain better than using a bogus domain name (as
+ we did briefly in 2.6.18) since server will use its default */
+ *bcc_ptr = 0;
+ *(bcc_ptr+1) = 0;
+ bytes_ret = 0;
+ } else
+ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName,
+ 256, nls_cp);
+ bcc_ptr += 2 * bytes_ret;
+ bcc_ptr += 2; /* account for null terminator */
+
+ *pbcc_area = bcc_ptr;
+}
+
+
static void unicode_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses,
const struct nls_table *nls_cp)
{
@@ -100,38 +152,9 @@ static void unicode_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses,
}
bcc_ptr += 2 * bytes_ret;
bcc_ptr += 2; /* account for null termination */
- /* copy domain */
- if (ses->domainName == NULL) {
- /* Sending null domain better than using a bogus domain name (as
- we did briefly in 2.6.18) since server will use its default */
- *bcc_ptr = 0;
- *(bcc_ptr+1) = 0;
- bytes_ret = 0;
- } else
- bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName,
- 256, nls_cp);
- bcc_ptr += 2 * bytes_ret;
- bcc_ptr += 2; /* account for null terminator */
-
- /* Copy OS version */
- bytes_ret = cifs_strtoUCS((__le16 *)bcc_ptr, "Linux version ", 32,
- nls_cp);
- bcc_ptr += 2 * bytes_ret;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)
- bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, init_utsname()->release,
- 32, nls_cp);
-#else
- bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release,
- 32, nls_cp);
-#endif
- bcc_ptr += 2 * bytes_ret;
- bcc_ptr += 2; /* trailing null */
-
- bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS,
- 32, nls_cp);
- bcc_ptr += 2 * bytes_ret;
- bcc_ptr += 2; /* trailing null */
+ unicode_domain_string(&bcc_ptr, ses, nls_cp);
+ unicode_oslm_strings(&bcc_ptr, nls_cp);
*pbcc_area = bcc_ptr;
}
@@ -327,11 +350,12 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
SESSION_SETUP_ANDX *pSMB;
__u32 capabilities;
int count;
- int resp_buf_type = 0;
- struct kvec iov[2];
+ int resp_buf_type;
+ struct kvec iov[3];
enum securityEnum type;
__u16 action;
int bytes_remaining;
+ struct key *spnego_key = NULL;
if (ses == NULL)
return -EINVAL;
@@ -364,24 +388,32 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
capabilities = cifs_ssetup_hdr(ses, pSMB);
- /* we will send the SMB in two pieces,
- a fixed length beginning part, and a
- second part which will include the strings
- and rest of bcc area, in order to avoid having
- to do a large buffer 17K allocation */
+ /* we will send the SMB in three pieces:
+ a fixed length beginning part, an optional
+ SPNEGO blob (which can be zero length), and a
+ last part which will include the strings
+ and rest of bcc area. This allows us to avoid
+ a large buffer 17K allocation */
iov[0].iov_base = (char *)pSMB;
iov[0].iov_len = smb_buf->smb_buf_length + 4;
+ /* setting this here allows the code at the end of the function
+ to free the request buffer if there's an error */
+ resp_buf_type = CIFS_SMALL_BUFFER;
+
/* 2000 big enough to fit max user, domain, NOS name etc. */
str_area = kmalloc(2000, GFP_KERNEL);
if (str_area == NULL) {
- cifs_small_buf_release(smb_buf);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto ssetup_exit;
}
bcc_ptr = str_area;
ses->flags &= ~CIFS_SES_LANMAN;
+ iov[1].iov_base = NULL;
+ iov[1].iov_len = 0;
+
if (type == LANMAN) {
#ifdef CONFIG_CIFS_WEAK_PW_HASH
char lnm_session_key[CIFS_SESS_KEY_SIZE];
@@ -394,10 +426,6 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
calc_lanman_hash(ses, lnm_session_key);
ses->flags |= CIFS_SES_LANMAN;
-/* #ifdef CONFIG_CIFS_DEBUG2
- cifs_dump_mem("cryptkey: ",ses->server->cryptKey,
- CIFS_SESS_KEY_SIZE);
-#endif */
memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE);
bcc_ptr += CIFS_SESS_KEY_SIZE;
@@ -450,8 +478,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
struct ntlmv2_resp */
if (v2_sess_key == NULL) {
- cifs_small_buf_release(smb_buf);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto ssetup_exit;
}
pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities);
@@ -486,21 +514,77 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
unicode_ssetup_strings(&bcc_ptr, ses, nls_cp);
} else
ascii_ssetup_strings(&bcc_ptr, ses, nls_cp);
- } else /* NTLMSSP or SPNEGO */ {
+ } else if (type == Kerberos || type == MSKerberos) {
+#ifdef CONFIG_CIFS_UPCALL
+ struct cifs_spnego_msg *msg;
+ spnego_key = cifs_get_spnego_key(ses);
+ if (IS_ERR(spnego_key)) {
+ rc = PTR_ERR(spnego_key);
+ spnego_key = NULL;
+ goto ssetup_exit;
+ }
+
+ msg = spnego_key->payload.data;
+ /* check version field to make sure that cifs.upcall is
+ sending us a response in an expected form */
+ if (msg->version != CIFS_SPNEGO_UPCALL_VERSION) {
+ cERROR(1, ("incorrect version of cifs.upcall (expected"
+ " %d but got %d)",
+ CIFS_SPNEGO_UPCALL_VERSION, msg->version));
+ rc = -EKEYREJECTED;
+ goto ssetup_exit;
+ }
+ /* bail out if key is too long */
+ if (msg->sesskey_len >
+ sizeof(ses->server->mac_signing_key.data.krb5)) {
+ cERROR(1, ("Kerberos signing key too long (%u bytes)",
+ msg->sesskey_len));
+ rc = -EOVERFLOW;
+ goto ssetup_exit;
+ }
+ if (first_time) {
+ ses->server->mac_signing_key.len = msg->sesskey_len;
+ memcpy(ses->server->mac_signing_key.data.krb5,
+ msg->data, msg->sesskey_len);
+ }
pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
capabilities |= CAP_EXTENDED_SECURITY;
pSMB->req.Capabilities = cpu_to_le32(capabilities);
- /* BB set password lengths */
+ iov[1].iov_base = msg->data + msg->sesskey_len;
+ iov[1].iov_len = msg->secblob_len;
+ pSMB->req.SecurityBlobLength = cpu_to_le16(iov[1].iov_len);
+
+ if (ses->capabilities & CAP_UNICODE) {
+ /* unicode strings must be word aligned */
+ if ((iov[0].iov_len + iov[1].iov_len) % 2) {
+ *bcc_ptr = 0;
+ bcc_ptr++;
+ }
+ unicode_oslm_strings(&bcc_ptr, nls_cp);
+ unicode_domain_string(&bcc_ptr, ses, nls_cp);
+ } else
+ /* BB: is this right? */
+ ascii_ssetup_strings(&bcc_ptr, ses, nls_cp);
+#else /* ! CONFIG_CIFS_UPCALL */
+ cERROR(1, ("Kerberos negotiated but upcall support disabled!"));
+ rc = -ENOSYS;
+ goto ssetup_exit;
+#endif /* CONFIG_CIFS_UPCALL */
+ } else {
+ cERROR(1, ("secType %d not supported!", type));
+ rc = -ENOSYS;
+ goto ssetup_exit;
}
- count = (long) bcc_ptr - (long) str_area;
+ iov[2].iov_base = str_area;
+ iov[2].iov_len = (long) bcc_ptr - (long) str_area;
+
+ count = iov[1].iov_len + iov[2].iov_len;
smb_buf->smb_buf_length += count;
BCC_LE(smb_buf) = cpu_to_le16(count);
- iov[1].iov_base = str_area;
- iov[1].iov_len = count;
- rc = SendReceive2(xid, ses, iov, 2 /* num_iovecs */, &resp_buf_type,
+ rc = SendReceive2(xid, ses, iov, 3 /* num_iovecs */, &resp_buf_type,
CIFS_STD_OP /* not long */ | CIFS_LOG_ERROR);
/* SMB request buf freed in SendReceive2 */
@@ -547,6 +631,10 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
ses, nls_cp);
ssetup_exit:
+ if (spnego_key) {
+ key_revoke(spnego_key);
+ key_put(spnego_key);
+ }
kfree(str_area);
if (resp_buf_type == CIFS_SMALL_BUFFER) {
cFYI(1, ("ssetup freeing small buf %p", iov[0].iov_base));
diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c
index cfa6d21..04943c9 100644
--- a/fs/cifs/smbdes.c
+++ b/fs/cifs/smbdes.c
@@ -114,42 +114,42 @@ static uchar sbox[8][4][16] = {
{{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
{0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},
{4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0},
- {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}},
+ {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13} },
{{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10},
{3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5},
{0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15},
- {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}},
+ {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9} },
{{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8},
{13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1},
{13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7},
- {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}},
+ {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12} },
{{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15},
{13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9},
{10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4},
- {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}},
+ {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14} },
{{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9},
{14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6},
{4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14},
- {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}},
+ {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3} },
{{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11},
{10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8},
{9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6},
- {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}},
+ {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13} },
{{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1},
{13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6},
{1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2},
- {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}},
+ {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12} },
{{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7},
{1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2},
{7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8},
- {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}}
+ {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11} }
};
static void
@@ -313,9 +313,8 @@ str_to_key(unsigned char *str, unsigned char *key)
key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6);
key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7);
key[7] = str[6] & 0x7F;
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < 8; i++)
key[i] = (key[i] << 1);
- }
}
static void
@@ -344,9 +343,8 @@ smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw)
dohash(outb, inb, keyb, forw);
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < 8; i++)
out[i] = 0;
- }
for (i = 0; i < 64; i++) {
if (outb[i])
diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index 90542a3..ff3232f 100644
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -35,11 +35,11 @@
#include "cifs_debug.h"
#include "cifsencrypt.h"
-#ifndef FALSE
-#define FALSE 0
+#ifndef false
+#define false 0
#endif
-#ifndef TRUE
-#define TRUE 1
+#ifndef true
+#define true 1
#endif
/* following came from the other byteorder.h to avoid include conflicts */
@@ -80,7 +80,7 @@ SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24)
/* Routines for Windows NT MD4 Hash functions. */
static int
-_my_wcslen(__u16 * str)
+_my_wcslen(__u16 *str)
{
int len = 0;
while (*str++ != 0)
@@ -96,7 +96,7 @@ _my_wcslen(__u16 * str)
*/
static int
-_my_mbstowcs(__u16 * dst, const unsigned char *src, int len)
+_my_mbstowcs(__u16 *dst, const unsigned char *src, int len)
{ /* BB not a very good conversion routine - change/fix */
int i;
__u16 val;
@@ -125,9 +125,9 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16)
/* Password cannot be longer than 128 characters */
if (passwd) {
len = strlen((char *) passwd);
- if (len > 128) {
+ if (len > 128)
len = 128;
- }
+
/* Password must be converted to NT unicode */
_my_mbstowcs(wpwd, passwd, len);
} else
@@ -135,7 +135,7 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16)
wpwd[len] = 0; /* Ensure string is null terminated */
/* Calculate length in bytes */
- len = _my_wcslen(wpwd) * sizeof (__u16);
+ len = _my_wcslen(wpwd) * sizeof(__u16);
mdfour(p16, (unsigned char *) wpwd, len);
memset(wpwd, 0, 129 * 2);
@@ -167,7 +167,7 @@ nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16])
E_P16((unsigned char *) passwd, (unsigned char *) p16);
/* clear out local copy of user's password (just being paranoid). */
- memset(passwd, '\0', sizeof (passwd));
+ memset(passwd, '\0', sizeof(passwd));
}
#endif
@@ -189,8 +189,10 @@ ntv2_owf_gen(const unsigned char owf[16], const char *user_n,
return;
dom_u = user_u + 1024;
- /* push_ucs2(NULL, user_u, user_n, (user_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER);
- push_ucs2(NULL, dom_u, domain_n, (domain_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); */
+ /* push_ucs2(NULL, user_u, user_n, (user_l+1)*2,
+ STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER);
+ push_ucs2(NULL, dom_u, domain_n, (domain_l+1)*2,
+ STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); */
/* BB user and domain may need to be uppercased */
user_l = cifs_strtoUCS(user_u, user_n, 511, nls_codepage);
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index d02e373..71ad562 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/transport.c
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
* Jeremy Allison (jra@samba.org) 2006.
*
@@ -158,6 +158,24 @@ void DeleteOplockQEntry(struct oplock_q_entry *oplockEntry)
kmem_cache_free(cifs_oplock_cachep, oplockEntry);
}
+
+void DeleteTconOplockQEntries(struct cifsTconInfo *tcon)
+{
+ struct oplock_q_entry *temp;
+
+ if (tcon == NULL)
+ return;
+
+ spin_lock(&GlobalMid_Lock);
+ list_for_each_entry(temp, &GlobalOplock_Q, qhead) {
+ if ((temp->tcon) && (temp->tcon == tcon)) {
+ list_del(&temp->qhead);
+ kmem_cache_free(cifs_oplock_cachep, temp);
+ }
+ }
+ spin_unlock(&GlobalMid_Lock);
+}
+
int
smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer,
unsigned int smb_buf_length, struct sockaddr *sin)
@@ -288,6 +306,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,
temp_fs = get_fs(); /* we must turn off socket api parm checking */
set_fs(get_ds());
#endif
+ i = 0;
while (total_len) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 8)
smb_msg.msg_iov = &iov[first_vec];
@@ -408,9 +427,9 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf,
} else if (ses->status != CifsGood) {
/* check if SMB session is bad because we are setting it up */
if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) &&
- (in_buf->Command != SMB_COM_NEGOTIATE)) {
+ (in_buf->Command != SMB_COM_NEGOTIATE))
return -EAGAIN;
- } /* else ok - we are setting up session */
+ /* else ok - we are setting up session */
}
*ppmidQ = AllocMidQEntry(in_buf, ses);
if (*ppmidQ == NULL)
@@ -487,9 +506,8 @@ SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
iov[0].iov_len = in_buf->smb_buf_length + 4;
flags |= CIFS_NO_RESP;
rc = SendReceive2(xid, ses, iov, 1, &resp_buf_type, flags);
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("SendRcvNoR flags %d rc %d", flags, rc));
-#endif
+ cFYI(DBG2, ("SendRcvNoRsp flags %d rc %d", flags, rc));
+
return rc;
}
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 8a2a55c..0216f5d 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -142,9 +142,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
} else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) {
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
goto set_ea_exit;
- if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) {
+ if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0)
cFYI(1, ("attempt to set cifs inode metadata"));
- }
+
ea_name += 5; /* skip past user. prefix */
rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value,
(__u16)value_size, cifs_sb->local_nls,
@@ -264,21 +264,27 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
-/* else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
__u16 fid;
- int oplock = FALSE;
- rc = CIFSSMBOpen(xid, pTcon, full_path,
- FILE_OPEN, GENERIC_READ, 0, &fid,
- &oplock, NULL, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if(rc == 0) {
- rc = CIFSSMBGetCIFSACL(xid, pTcon, fid,
- ea_value, buf_size,
- ACL_TYPE_ACCESS);
+ int oplock = 0;
+ struct cifs_ntsd *pacl = NULL;
+ __u32 buflen = 0;
+ if (experimEnabled)
+ rc = CIFSSMBOpen(xid, pTcon, full_path,
+ FILE_OPEN, GENERIC_READ, 0, &fid,
+ &oplock, NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ /* else rc is EOPNOTSUPP from above */
+
+ if (rc == 0) {
+ rc = CIFSSMBGetCIFSACL(xid, pTcon, fid, &pacl,
+ &buflen);
CIFSSMBClose(xid, pTcon, fid);
}
- } */ /* BB enable after fixing up return data */
+ }
+#endif /* EXPERIMENTAL */
#else
cFYI(1, ("query POSIX ACL not supported yet"));
#endif /* CONFIG_CIFS_POSIX */
@@ -300,11 +306,10 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
} else if (strncmp(ea_name,
CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) {
cFYI(1, ("Security xattr namespace not supported yet"));
- } else {
+ } else
cFYI(1,
("illegal xattr request %s (only user namespace supported)",
ea_name));
- }
/* We could add an additional check for streams ie
if proc/fs/cifs/streamstoxattr is set then
distrib
>
Scientific%20Linux
>
5x
>
x86_64
>
by-pkgid
>
89877e42827f16fa5f86b1df0c2860b1
>
files
>
515
