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authorSachin Prabhu <sprabhu@redhat.com>2014-05-13 00:48:12 +0100
committerSteve French <smfrench@gmail.com>2014-05-21 10:18:05 -0700
commit39552ea8120a699dbd0360848c4d949f9f0e6deb (patch)
treec9e3eccdcefdbcf1bd7f139f0c12945150912488 /fs/cifs/smb2pdu.h
parent179d61839bafa924ff6f1960436339abdc911650 (diff)
downloadlinux-39552ea8120a699dbd0360848c4d949f9f0e6deb.tar.bz2
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>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 2022c542ea3a..743e11e20c5c 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -183,8 +183,6 @@ struct smb2_symlink_err_rsp {
#define SMB2_CLIENT_GUID_SIZE 16
-extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
-
struct smb2_negotiate_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 36 */