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39552ea812
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Sachin Prabhu 39552ea812 cifs: Set client guid on per connection basis 
When mounting from a Windows 2012R2 server, we hit the following
problem:
1) Mount with any of the following versions - 2.0, 2.1 or 3.0
2) unmount
3) Attempt a mount again using a different SMB version >= 2.0.

You end up with the following failure:
Status code returned 0xc0000203 STATUS_USER_SESSION_DELETED
CIFS VFS: Send error in SessSetup = -5
CIFS VFS: cifs_mount failed w/return code = -5

I cannot reproduce this issue using a Windows 2008 R2 server.

This appears to be caused because we use the same client guid for the
connection on first mount which we then disconnect and attempt to mount
again using a different protocol version. By generating a new guid each
time a new connection is Negotiated, we avoid hitting this problem.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2014-05-21 10:18:05 -07:00
..
asn1.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cache.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_debug.c cifs: try to handle the MUST SecurityFlags sanely 2013-06-26 17:31:55 -05:00
cifs_debug.h [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_dfs_ref.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
cifs_fs_sb.h cifs: rcu-delay unload_nls() and freeing sbi 2013-10-24 23:43:27 -04:00
cifs_spnego.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_spnego.h
cifs_unicode.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_unicode.h cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
cifs_uniupr.h
cifsacl.c [CIFS] Fix cifsacl mounts over smb2 to not call cifs 2014-02-10 14:08:16 -06:00
cifsacl.h
cifsencrypt.c cifs: Use data structures to compute NTLMv2 response offsets 2013-11-11 16:58:11 -06:00
cifsfs.c cifs: Set client guid on per connection basis 2014-05-21 10:18:05 -07:00
cifsfs.h Update cifs version number to 2.03 2014-05-21 10:18:05 -07:00
cifsglob.h cifs: Set client guid on per connection basis 2014-05-21 10:18:05 -07:00
cifspdu.h cifs: Use data structures to compute NTLMv2 response offsets 2013-11-11 16:58:11 -06:00
cifsproto.h cifs: Wait for writebacks to complete before attempting write. 2014-04-16 13:51:46 -05:00
cifssmb.c Return correct error on query of xattr on file with empty xattrs 2014-04-16 13:51:46 -05:00
connect.c cifs: Set client guid on per connection basis 2014-05-21 10:18:05 -07:00
dir.c [CIFS] Fix cifsacl mounts over smb2 to not call cifs 2014-02-10 14:08:16 -06:00
dns_resolve.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
dns_resolve.h
export.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
file.c cifs: fix potential races in cifs_revalidate_mapping 2014-05-21 10:18:05 -07:00
fscache.c NFS client updates for Linux 3.13 2013-11-08 05:57:46 +09:00
fscache.h CIFS: FS-Cache: Uncache unread pages in cifs_readpages() before freeing them 2013-09-18 10:17:03 -05:00
inode.c cifs: fix potential races in cifs_revalidate_mapping 2014-05-21 10:18:05 -07:00
ioctl.c fs: cifs: new helper: file_inode(file) 2014-05-21 10:18:05 -07:00
Kconfig [CIFS] SMB3 Signing enablement 2013-06-26 23:45:05 -05:00
link.c cifs: Fix check for regular file in couldbe_mf_symlink() 2014-01-31 09:06:43 -06:00
Makefile cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
misc.c cifs: Wait for writebacks to complete before attempting write. 2014-04-16 13:51:46 -05:00
netmisc.c fs/cifs/netmisc.c: convert printk to pr_foo() 2014-05-21 10:18:05 -07:00
nterr.c
nterr.h
ntlmssp.h
readdir.c cifs: Rename MF symlink function names 2014-01-20 00:13:54 -06:00
rfc1002pdu.h
sess.c cifs: Allow LANMAN auth method for servers supporting unencapsulated authentication methods 2013-10-07 09:57:11 -05:00
smb1ops.c cifs: Wait for writebacks to complete before attempting write. 2014-04-16 13:51:46 -05:00
smb2file.c CIFS: Store lease state itself rather than a mapped oplock value 2013-09-09 22:52:05 -05:00
smb2glob.h CIFS: Fix too big maxBuf size for SMB3 mounts 2014-02-14 16:50:47 -06:00
smb2inode.c CIFS: Fix symbolic links usage 2013-11-11 16:31:03 -06:00
smb2maperror.c cifs: change ERRnomem error mapping from ENOMEM to EREMOTEIO 2013-11-11 16:33:25 -06:00
smb2misc.c cifs: Wait for writebacks to complete before attempting write. 2014-04-16 13:51:46 -05:00
smb2ops.c cifs: Wait for writebacks to complete before attempting write. 2014-04-16 13:51:46 -05:00
smb2pdu.c cifs: Set client guid on per connection basis 2014-05-21 10:18:05 -07:00
smb2pdu.h cifs: Set client guid on per connection basis 2014-05-21 10:18:05 -07:00
smb2proto.h [CIFS] clean up page array when uncached write send fails 2014-02-07 20:47:00 -06:00
smb2status.h
smb2transport.c cifs: Send a logoff request before removing a smb session 2013-11-02 12:52:35 -05:00
smbencrypt.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
smberr.h
smbfsctl.h Check SMB3 dialects against downgrade attacks 2013-11-19 23:52:54 -06:00
transport.c cifs: sanity check length of data to send before sending 2014-02-23 20:55:07 -06:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c retrieving CIFS ACLs when mounted with SMB2 fails dropping session 2014-02-07 11:08:17 -06:00