cifs: move handling of signed connections into separate function
Move the sanity checks for signed connections into a separate function.
SMB2's was a cut-and-paste job from CIFS code, so we can make them use
the same function.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 3af66aa..ebb97b4 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -423,36 +423,11 @@
}
cifs_dbg(FYI, "sec_flags 0x%x\n", sec_flags);
- if ((sec_flags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) {
- cifs_dbg(FYI, "Signing required\n");
- if (!(server->sec_mode & (SMB2_NEGOTIATE_SIGNING_REQUIRED |
- SMB2_NEGOTIATE_SIGNING_ENABLED))) {
- cifs_dbg(VFS, "signing required but server lacks support\n");
- rc = -EOPNOTSUPP;
- goto neg_exit;
- }
- server->sec_mode |= SECMODE_SIGN_REQUIRED;
- } else if (sec_flags & CIFSSEC_MAY_SIGN) {
- cifs_dbg(FYI, "Signing optional\n");
- if (server->sec_mode & SMB2_NEGOTIATE_SIGNING_REQUIRED) {
- cifs_dbg(FYI, "Server requires signing\n");
- server->sec_mode |= SECMODE_SIGN_REQUIRED;
- } else {
- server->sec_mode &=
- ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
- }
- } else {
- cifs_dbg(FYI, "Signing disabled\n");
- if (server->sec_mode & SMB2_NEGOTIATE_SIGNING_REQUIRED) {
- cifs_dbg(VFS, "Server requires packet signing to be enabled in /proc/fs/cifs/SecurityFlags\n");
- rc = -EOPNOTSUPP;
- goto neg_exit;
- }
- server->sec_mode &=
- ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
- }
-
+ rc = cifs_enable_signing(server, sec_flags);
#ifdef CONFIG_SMB2_ASN1 /* BB REMOVEME when updated asn1.c ready */
+ if (rc)
+ goto neg_exit;
+
rc = decode_neg_token_init(security_blob, blob_length,
&server->sec_type);
if (rc == 1)