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cifs: print error code if smb signature verification fails

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While trying to debug a SMB signature related issue with Windows Servers
figured out it might be easier to debug if we print the error code from
cifs_verify_signature(). Also, fix indendation while at it.

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Steve French
2012-08-03 09:42:45 -05:00
parent 7411286088
commit 985e4ff016
2 changed files with 14 additions and 6 deletions
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fs/cifs/transport.c
+6 -3
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@@ -503,13 +503,16 @@ cifs_check_receive(struct mid_q_entry *mid, struct TCP_Server_Info *server,
/* convert the length into a more usable form */
if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) {
struct kvec iov;
int rc = 0;
iov.iov_base = mid->resp_buf;
iov.iov_len = len;
/* FIXME: add code to kill session */
if (cifs_verify_signature(&iov, 1, server,
mid->sequence_number + 1) != 0)
cERROR(1, "Unexpected SMB signature");
rc = cifs_verify_signature(&iov, 1, server,
mid->sequence_number + 1);
if (rc)
cERROR(1, "SMB signature verification returned error = "
"%d", rc);
}
/* BB special case reconnect tid and uid here? */