SNAC(04,07)/CH2 channel 2 message from server for client

SNAC(04,07)/CH2

SRV_CLIENT_ICBM_CH2

This is the message from server that was sent by another client. It contain two parts: fixed part (sender uin, msg-id cookie, channel, sender info) and message data part. See also additional information about online userinfo block.

00 04	word	SNAC family
00 07	word	SNAC subtype
00 00	word	SNAC flags
xx xx xx xx	dword	SNAC request-id

xx xx xx xx xx xx xx xx	qword	msg-id cookie
00 02	word	message channel
xx	byte	screenname string length
xx ..	string	screenname string
xx xx	word	sender warning level
xx xx	word	number of TLVs in fixed part

00 01		word		TLV.Type(0x01) - user class
00 02		word		TLV.Length

xx xx

word

user class

00 06		word		TLV.Type(0x06) - user status
00 04		word		TLV.Length

xx xx xx xx

dword

user status

00 0F		word		TLV.Type(0x0F) - online time
00 04		word		TLV.Length

xx xx xx xx

dword

client online time

00 03		word		TLV.Type(0x03) - account creation time
00 04		word		TLV.Length

xx xx xx xx

dword

user account creation time

00 05		word		TLV.Type(0x05) - rendezvous message data
xx xx		word		TLV.Length

xx xx	word	message type (0 - request, 1 - cancel, 2 - accept)
xx xx xx xx xx xx xx xx	qword	msg-id cookie (same as above)
xx .. xx	guid	capability (determines format of message data in "extention data" below)

00 04		word		TLV.Type(0x04) - external ip
xx xx		word		TLV.Length

xx xx xx xx

dword

external ip

00 05		word		TLV.Type(0x05) - listening port
xx xx		word		TLV.Length

xx xx

word

listening port

00 0A		word		TLV.Type(0x0A) - unknown
xx xx		word		TLV.Length

xx xx

word

unknown (usually 1)

00 0B		word		TLV.Type(0x0B) - unknown
xx xx		word		TLV.Length

xx xx

word

unknown

00 0F		word		TLV.Type(0x0F) - unknown
00 00		word		TLV.Length

empty

27 11		word		TLV.Type(0x2711) - extention data
xx xx		word		TLV.Length

Following contents is capability-specific.

Data format description for capability {09461349-4C7F-11D1-8222-444553540000}

xx xx	word (LE)	length of following data
xx xx	word (LE)	protocol version
xx .. xx	guid (LE)	plugin or zero bytes
xx xx	word	unknown
xx xx xx xx	dword (LE)	client capabilities flags
xx	byte	unknown
xx xx	word (LE)	seems to be a downcounter

xx xx	word (LE)	length of following data
xx xx	word (LE)	seems to be a downcounter as in first chunk above
xx ..		unknown, usually zeros

if plugin field in first chunk above is zero,
here is message, overwise here is plugin-specific data.

Example SNAC dumps with flap header:


  2A 02 08 2C 01 9D 00 04 00 07 00 00 90 2F 30 11  *..,.�......�/0.
  70 95 A0 00 26 1F 00 00 00 02 07 31 32 33 34 35  p��.&......12345
  36 37 00 00 00 04 00 01 00 02 00 50 00 06 00 04  67.........P....
  20 12 00 00 00 0F 00 04 00 00 06 F3 00 03 00 04   ..........�....
  40 5A 93 78 00 05 01 5B 00 00 70 95 A0 00 26 1F  @Z�x...[..p��.&.
  00 00 09 46 13 49 4C 7F 11 D1 82 22 44 45 53 54  ...F.IL.T�"DEST
  00 00 00 0A 00 02 00 01 00 0F 00 00 27 11 01 33  ............'..3
  1B 00 08 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  00 00 00 00 00 00 03 00 00 00 00 E3 FF 0E 00 E3  ...........�..�
  FF 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00  �...............
  00 21 00 CC 00 7B 5C 72 74 66 31 5C 61 6E 73 69  .!.�.{\rtf1\ansi
  5C 61 6E 73 69 63 70 67 31 32 35 31 5C 64 65 66  \ansicpg1251\def
  66 30 5C 64 65 66 6C 61 6E 67 31 30 34 39 7B 5C  f0\deflang1049{\
  66 6F 6E 74 74 62 6C 7B 5C 66 30 5C 66 6E 69 6C  fonttbl{\f0\fnil
  5C 66 63 68 61 72 73 65 74 32 30 34 7B 5C 2A 5C  \fcharset204{\*\
  66 6E 61 6D 65 20 4D 53 20 53 61 6E 73 20 53 65  fname MS Sans Se
  72 69 66 3B 7D 4D 53 20 53 68 65 6C 6C 20 44 6C  rif;}MS Shell Dl
  67 3B 7D 7D 0D 0A 7B 5C 63 6F 6C 6F 72 74 62 6C  g;}}..{\colortbl
  20 3B 5C 72 65 64 30 5C 67 72 65 65 6E 30 5C 62   ;\red0\green0\b
  6C 75 65 30 3B 7D 0D 0A 5C 76 69 65 77 6B 69 6E  lue0;}..\viewkin
  64 34 5C 75 63 31 5C 70 61 72 64 5C 63 66 31 5C  d4\uc1\pard\cf1\
  66 30 5C 66 73 32 30 3C 23 23 69 63 71 69 6D 61  f0\fs20<##icqima
  67 65 30 30 30 38 3E 5C 70 61 72 0D 0A 7D 0D 0A  ge0008>\par..}..
  00 00 00 00 00 FF FF FF 00 26 00 00 00 7B 39 37  .....���.&...{97
  42 31 32 37 35 31 2D 32 34 33 43 2D 34 33 33 34  B12751-243C-4334
  2D 41 44 32 32 2D 44 36 41 42 46 37 33 46 31 34  -AD22-D6ABF73F14
  39 32 7D                                         92}