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authorSachin Prabhu <sprabhu@redhat.com>2014-12-03 15:26:36 +0300
committerSteve French <steve.french@primarydata.com>2014-12-08 08:43:02 +0300
commitee9bbf465d8bb82ff2081834cb53a0ea7574c423 (patch)
tree70249e88b971ed2a70cc4fb788c7b86d4a37cc40 /fs/cifs
parent0b456f04bcdf5b1151136adaada158bfc26f1be7 (diff)
downloadlinux-ee9bbf465d8bb82ff2081834cb53a0ea7574c423.tar.xz
Set UID in sess_auth_rawntlmssp_authenticate too
A user complained that they were unable to login to their cifs share after a kernel update. From the wiretrace we can see that the server returns different UIDs as response to NTLMSSP_NEGOTIATE and NTLMSSP_AUTH phases. With changes in the authentication code, we no longer set the cifs_sess->Suid returned in response to the NTLM_AUTH phase and continue to use the UID sent in response to the NTLMSSP_NEGOTIATE phase. This results in the server denying access to the user when the user attempts to do a tcon connect. See https://bugzilla.redhat.com/show_bug.cgi?id=1163927 A test kernel containing patch was tested successfully by the user. Signed-off-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Steve French <steve.french@primarydata.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/sess.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 57db63ff88da..446cb7fb3f58 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -1303,6 +1303,11 @@ sess_auth_rawntlmssp_authenticate(struct sess_data *sess_data)
if (le16_to_cpu(pSMB->resp.Action) & GUEST_LOGIN)
cifs_dbg(FYI, "Guest login\n"); /* BB mark SesInfo struct? */
+ if (ses->Suid != smb_buf->Uid) {
+ ses->Suid = smb_buf->Uid;
+ cifs_dbg(FYI, "UID changed! new UID = %llu\n", ses->Suid);
+ }
+
bytes_remaining = get_bcc(smb_buf);
bcc_ptr = pByteArea(smb_buf);
blob_len = le16_to_cpu(pSMB->resp.SecurityBlobLength);