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584dfc15fd
Use of previously added smb.conf global param.
Sample usage:
$ smbclient //localhost/scratch --option='debugencryption=yes' \
-e -mSMB3 -U aaptel%aaptel -c quit
debug encryption: dumping generated session keys
Session Id [0000] 26 48 BF FD 00 00 00 00 &H......
Session Key [0000] 63 D6 CA BC 08 C8 4A D2 45 F6 AE 35 AB 4A B3 3B c.....J. E..5.J.;
Signing Key [0000] 4E FE 35 92 AC 13 14 FC C9 17 62 B1 82 20 A4 12 N.5..... ..b.. ..
App Key [0000] A5 0F F4 8B 2F FB 0D FF F2 BF EE 39 E6 6D F5 0A ..../... ...9.m..
ServerIn Key [0000] 2A 02 7E E1 D3 58 D8 12 4C 63 76 AE 59 17 5A E4 *.~..X.. Lcv.Y.Z.
ServerOut Key [0000] 59 F2 5B 7F 66 8F 31 A0 A5 E4 A8 D8 2F BA 00 38 Y.[.f.1. ..../..8
We can now simply pass -ouat:smb2_seskey_list:<sesid>,<seskey> to
wireshark or tshark:
$ tshark -ouat:smb2_seskey_list:2648BFFD00000000,63D6CABC08C84AD245F6AE35AB4AB33B \
-Y smb2 -r capture.pcap -Tfields -e _ws.col.Info
Negotiate Protocol Response
Negotiate Protocol Request
Negotiate Protocol Response
Session Setup Request, NTLMSSP_NEGOTIATE
Session Setup Response, Error: STATUS_MORE_PROCESSING_REQUIRED, NTLMSSP_CHALLENGE
Session Setup Request, NTLMSSP_AUTH, User: WORKGROUP\aaptel
Session Setup Response
Tree Connect Request Tree: \\localhost\IPC$
Tree Connect Response
Decrypted SMB3;Ioctl Request FSCTL_DFS_GET_REFERRALS, File: \localhost\scratch
Decrypted SMB3;Ioctl Response, Error: STATUS_NOT_FOUND
Decrypted SMB3;Tree Disconnect Request
Decrypted SMB3;Tree Disconnect Response
Decrypted SMB3;Tree Connect Request Tree: \\localhost\scratch
Decrypted SMB3;Tree Connect Response
Decrypted SMB3;Tree Disconnect Request
Decrypted SMB3;Tree Disconnect Response
For more info on Wireshark decryption support see
https://wiki.samba.org/index.php/Wireshark_Decryption
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Noel Power <npower@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Sat Feb 9 21:43:25 CET 2019 on sn-devel-144
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