[Samba] more logging: Bad SMB2 (sign_algo_id=1) signature for message

[Jeremy Allison]

On Wed, Jan 10, 2024 at 04:44:04PM +0300, Michael Tokarev via samba wrote:
>3rd one in one day.
>
>[2024/01/10 16:42:03.713034,  0, pid=2049252] ../../libcli/smb/smb2_signing.c:722(smb2_signing_check_pdu)
>  Bad SMB2 (sign_algo_id=1) signature for message
>[2024/01/10 16:42:03.713044,  0, pid=2049252] ../../lib/util/util.c:571(dump_data)
>  [0000] 73 ED 8B E2 56 72 79 4E   53 7E BE 48 DF EC 07 6E   s...VryN S~.H...n
>[2024/01/10 16:42:03.713057,  0, pid=2049252] ../../lib/util/util.c:571(dump_data)
>  [0000] C2 81 22 44 50 2B 0B 82   17 DD EB F1 34 68 81 70   .."DP+.. ....4h.p
>[2024/01/10 16:42:03.713092,  0, pid=2049252] ../../libcli/smb/smb2_signing.c:722(smb2_signing_check_pdu)
>  Bad SMB2 (sign_algo_id=1) signature for message
>[2024/01/10 16:42:03.713103,  0, pid=2049252] ../../lib/util/util.c:571(dump_data)
>  [0000] 4C 8D 4D E1 14 8A 59 EB   72 40 51 C8 4D FA 43 7F   L.M...Y. r at Q.M.C.
>[2024/01/10 16:42:03.713115,  0, pid=2049252] ../../lib/util/util.c:571(dump_data)
>  [0000] 55 DB 4D C3 80 C4 AB 57   0A B1 B4 2E 58 BE B7 37   U.M....W ....X..7
>
>repeated *a lot*.
>
>This also shows another big defect of samba logging: there's no context in here,
>I can't say which session or client/ip address it is.  So these messages are not
>only completely useless but also harmful (because of filling up the logs).

Again, please log bugs and let's get all this tidied up.

I appreciate the time and energy you're putting into
calling out these flaws.