[Samba] BAD SIG[nature] errors from XP client

[Jeremy Allison]

On Sat, Aug 05, 2006 at 02:07:00PM -0400, Dale Sedivec wrote:
> Greetings,
> 
> 	I've set up a Samba 3.0.23a PDC on Fedora Core 5 and joined a
> couple XP clients to the domain successfully.  However, when I start
> using the Samba PDC's "homes" share from the XP client, I eventually
> get errors such as the following:
> 
> [2006/08/05 03:28:07, 0] libsmb/smb_signing.c:srv_check_incoming_message(657)
>   srv_check_incoming_message: BAD SIG: seq 798 wanted SMB signature of
> [2006/08/05 03:28:07, 5] lib/util.c:dump_data(2237)
>   [000] 38 72 55 75 A5 07 5E C3                           8rUu..^.
> [2006/08/05 03:28:07, 0] libsmb/smb_signing.c:srv_check_incoming_message(661)
>   srv_check_incoming_message: BAD SIG: seq 798 got SMB signature of
> [2006/08/05 03:28:07, 5] lib/util.c:dump_data(2237)
>   [000] FA B5 F7 8E 38 76 3C EA                           ....8v<.
> [2006/08/05 03:28:07, 10] libsmb/smb_signing.c:simple_packet_signature(262)
>   simple_packet_signature: sequence number 793
> [2006/08/05 03:28:07, 10] libsmb/smb_signing.c:simple_packet_signature(262)
>   simple_packet_signature: sequence number 794
> [2006/08/05 03:28:07, 10] libsmb/smb_signing.c:simple_packet_signature(262)
>   simple_packet_signature: sequence number 795
> [2006/08/05 03:28:07, 10] libsmb/smb_signing.c:simple_packet_signature(262)
>   simple_packet_signature: sequence number 796
> [2006/08/05 03:28:07, 10] libsmb/smb_signing.c:simple_packet_signature(262)
>   simple_packet_signature: sequence number 797
> [2006/08/05 03:28:07, 0] libsmb/smb_signing.c:srv_check_incoming_message(673)
>   srv_check_incoming_message: out of seq. seq num 797 matches. We were expecting seq 798
> [2006/08/05 03:28:07, 0] libsmb/smb_signing.c:signing_good(232)
>   signing_good: BAD SIG: seq 798
> [2006/08/05 03:28:07, 0] lib/util_sock.c:receive_smb(741)
>   receive_smb: SMB Signature verification failed on incoming packet!
> [2006/08/05 03:28:07, 3] smbd/process.c:timeout_processing(1370)
>   timeout_processing: receive_smb error bad smb signature. Exiting

Signing should work. Can you log a bug at bugzilla.samba.org and
attach a full debug level 10 log from the smbd serving your client.
I don't care how large it is, thanks.

Jeremy.