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| author | Shirish Pargaonkar <shirishpargaonkar@gmail.com> | 2013-10-12 10:06:03 -0500 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2013-11-02 12:52:35 -0500 |
| commit | 7f48558e6489d032b1584b0cc9ac4bb11072c034 (patch) | |
| tree | 54c6b7529085229d53cae09cada37d548f848f26 /fs/cifs/smb2transport.c | |
| parent | 3d378d3fd82a759d59c60d89b4559bf325d7e668 (diff) | |
| download | lwn-7f48558e6489d032b1584b0cc9ac4bb11072c034.tar.gz lwn-7f48558e6489d032b1584b0cc9ac4bb11072c034.zip | |
cifs: Send a logoff request before removing a smb session
Send a smb session logoff request before removing smb session off of the list.
On a signed smb session, remvoing a session off of the list before sending
a logoff request results in server returning an error for lack of
smb signature.
Never seen an error during smb logoff, so as per MS-SMB2 3.2.5.1,
not sure how an error during logoff should be retried. So for now,
if a server returns an error to a logoff request, log the error and
remove the session off of the list.
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2transport.c')
| -rw-r--r-- | fs/cifs/smb2transport.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index c523617eade2..59c748ce872f 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -516,13 +516,19 @@ smb2_get_mid_entry(struct cifs_ses *ses, struct smb2_hdr *buf, return -EAGAIN; } - if (ses->status != CifsGood) { - /* check if SMB2 session is bad because we are setting it up */ + if (ses->status == CifsNew) { if ((buf->Command != SMB2_SESSION_SETUP) && (buf->Command != SMB2_NEGOTIATE)) return -EAGAIN; /* else ok - we are setting up session */ } + + if (ses->status == CifsExiting) { + if (buf->Command != SMB2_LOGOFF) + return -EAGAIN; + /* else ok - we are shutting down the session */ + } + *mid = smb2_mid_entry_alloc(buf, ses->server); if (*mid == NULL) return -ENOMEM; |