[PATCH 3.2 192/200] cifs: set MAY_SIGN when sec=krb5

[Ben Hutchings]

3.2.56-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Martijn de Gouw <martijn.de.gouw@xxxxxxxxxxx>

commit 0b7bc84000d71f3647ca33ab1bf5bd928535c846 upstream.

Setting this secFlg allows usage of dfs where some servers require
signing and others don't.

Signed-off-by: Martijn de Gouw <martijn.de.gouw@xxxxxxxxxxx>
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Steve French <sfrench@xxxxxxxxxx>
[Joseph Salisbury: This backport was done so including mainline commit
8830d7e07a5e38bc47650a7554b7c1cfd49902bf is not needed.]
BugLink: http://bugs.launchpad.net/bugs/1285723
Signed-off-by: Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 fs/cifs/connect.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 56c152d..49d6e21 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1113,7 +1113,8 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 				cERROR(1, "Krb5 cifs privacy not supported");
 				goto cifs_parse_mount_err;
 			} else if (strnicmp(value, "krb5", 4) == 0) {
-				vol->secFlg |= CIFSSEC_MAY_KRB5;
+				vol->secFlg |= CIFSSEC_MAY_KRB5 | 
+					CIFSSEC_MAY_SIGN;
 			} else if (strnicmp(value, "ntlmsspi", 8) == 0) {
 				vol->secFlg |= CIFSSEC_MAY_NTLMSSP |
 					CIFSSEC_MUST_SIGN;

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