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authorShirish Pargaonkar <shirishpargaonkar@gmail.com>2013-08-29 08:35:09 -0500
committerSteve French <smfrench@gmail.com>2013-09-08 14:47:47 -0500
commitd4e63bd6e40da30e965e8947b98ba75c6b973c62 (patch)
tree4f17bdbe75843ac578a9a9e1ee491192dd280d73 /fs/cifs/smb2pdu.c
parent31f92e9a87553d9d3044fe97b5fe0247e4314773 (diff)
downloadop-kernel-dev-d4e63bd6e40da30e965e8947b98ba75c6b973c62.zip
op-kernel-dev-d4e63bd6e40da30e965e8947b98ba75c6b973c62.tar.gz
cifs: Process post session setup code in respective dialect functions.
Move the post (successful) session setup code to respective dialect routines. For smb1, session key is per smb connection. For smb2/smb3, session key is per smb session. If client and server do not require signing, free session key for smb1/2/3. If client and server require signing smb1 - Copy (kmemdup) session key for the first session to connection. Free session key of that and subsequent sessions on this connection. smb2 - For every session, keep the session key and free it when the session is being shutdown. smb3 - For every session, generate the smb3 signing key using the session key and then free the session key. There are two unrelated line formatting changes as well. Reviewed-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2pdu.c')
-rw-r--r--fs/cifs/smb2pdu.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 7d56a5c..f56cf99 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -478,6 +478,13 @@ SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
}
/*
+ * If we are here due to reconnect, free per-smb session key
+ * in case signing was required.
+ */
+ kfree(ses->auth_key.response);
+ ses->auth_key.response = NULL;
+
+ /*
* If memory allocation is successful, caller of this function
* frees it.
*/
@@ -628,6 +635,30 @@ ssetup_exit:
/* if ntlmssp, and negotiate succeeded, proceed to authenticate phase */
if ((phase == NtLmChallenge) && (rc == 0))
goto ssetup_ntlmssp_authenticate;
+
+ if (!rc) {
+ mutex_lock(&server->srv_mutex);
+ if (!server->session_estab) {
+ server->sequence_number = 0x2;
+ server->session_estab = true;
+ if (server->ops->generate_signingkey)
+ server->ops->generate_signingkey(server);
+ }
+ mutex_unlock(&server->srv_mutex);
+
+ cifs_dbg(FYI, "SMB2/3 session established successfully\n");
+ spin_lock(&GlobalMid_Lock);
+ ses->status = CifsGood;
+ ses->need_reconnect = false;
+ spin_unlock(&GlobalMid_Lock);
+ }
+
+ if (!server->sign) {
+ kfree(ses->auth_key.response);
+ ses->auth_key.response = NULL;
+ }
+ kfree(ses->ntlmssp);
+
return rc;
}
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