[CIFS] Have CIFS_SessSetup build correct SPNEGO SessionSetup request

Have CIFS_SessSetup call cifs_get_spnego_key when Kerberos is
negotiated. Use the info in the key payload to build a session
setup request packet. Also clean up how the request buffer in
the function is freed on error.

With appropriate user space helper (in samba/source/client). Kerberos
support (secure session establishment can be done now via Kerberos,
previously users would have to use NTLMv2 instead for more secure
session setup).

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 64dd22239b21..e31aa74f7d9e 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,6 +1,7 @@
 Version 1.52
 ------------
 Fix oops on second mount to server when null auth is used.
+Enable experimental Kerberos support
 
 Version 1.51
 ------------