cifs: clean up cifs_find_smb_ses (try #2)
authorJeff Layton <jlayton@redhat.com>
Wed, 7 Jul 2010 00:43:02 +0000 (20:43 -0400)
committerSteve French <sfrench@us.ibm.com>
Mon, 2 Aug 2010 12:40:35 +0000 (12:40 +0000)
commit4ff67b720c02c36e54d55b88c2931879b7db1cd2
tree2a69a278edb4d80a9fb0760d188629fb6e8371fb
parentdaf5b0b6f3f6d7b15c2600426cc6c60a0e155218
cifs: clean up cifs_find_smb_ses (try #2)

This patch replaces the earlier patch by the same name. The only
difference is that MAX_PASSWORD_SIZE has been increased to attempt to
match the limits that windows enforces.

Do a better job of matching sessions by authtype. Matching by username
for a Kerberos session is incorrect, and anonymous sessions need special
handling.

Also, in the case where we do match by username, we also need to match
by password. That ensures that someone else doesn't "borrow" an existing
session without needing to know the password.

Finally, passwords can be longer than 16 bytes. Bump MAX_PASSWORD_SIZE
to 512 to match the size that the userspace mount helper allows.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
fs/cifs/cifsglob.h
fs/cifs/connect.c