cifs: don't start signing too early
authorJeff Layton <jlayton@redhat.com>
Tue, 26 Jul 2011 16:21:17 +0000 (12:21 -0400)
committerSteve French <sfrench@us.ibm.com>
Sun, 31 Jul 2011 21:21:06 +0000 (21:21 +0000)
commit998d6fcb24d25b7889ec39118cf98d5089ac4c11
treed731fae4fd3c2c0817edb73f4e29d4dd33ace135
parent1f1cff0be05f59d5939edf28ff5ca0c6fd0a8e1c
cifs: don't start signing too early

Sniffing traffic on the wire shows that windows clients send a zeroed
out signature field in a NEGOTIATE request, and send "BSRSPYL" in the
signature field during SESSION_SETUP. Make the cifs client behave the
same way.

It doesn't seem to make much difference in any server that I've tested
against, but it's probably best to follow windows behavior as closely as
possible here.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
fs/cifs/cifsencrypt.c