Protocols/OSCAR/SNAC/BUCP REGISTER REQUEST

OSCAR Protocol

Introduction • Terms • Clients

Basic

Datatypes • FLAP • SNAC • TLV

UUIDs • Errors • Tool IDs

Host Interaction

Rate Limits • Migration • Messages

Other Services

ADMIN • ADVERT • ALERT

BART • BOS • BUCP • CHAT

CHAT_NAV

Tutorials

Sign On • BART • Rendezvous

ICBM • Locate • Buddies

Foodgroups

OSERVICE (0x0001)

LOCATE (0x0002)

BUDDY (0x0003)

ICBM (0x0004)

ADVERT (0x0005)

INVITE (0x0006)

ADMIN (0x0007)

POPUP (0x0008)

PD (0x0009)

USER_LOOKUP (0x000A)

STATS (0x000B)

TRANSLATE (0x000C)

CHAT_NAV (0x000D)

CHAT (0x000E)

ODIR (0x000F)

BART (0x0010)

FEEDBAG (0x0013)

ICQ (0x0015)

BUCP (0x0017)

ALERT (0x0018)

PLUGIN (0x0022)

UNNAMED_FG_24 (0x0024)

MDIR (0x0025)

ARS (0x044A)

ID	Origin	Name	Foodgroup	Service	Status	Version
0x0017, 0x0004	Client	BUCP__REGISTER_REQUEST	Unspecified	BUCP	Active	1.15

Client registration for legacy ICQ clients.

SNAC Header

Foodgroup	uint16 (word)	00 17
Subgroup	uint16 (word)	00 04
Flags	uint16 (word)	00 00
Request ID	uint32 (dword)	00 00 00 00

SNAC Data

Unconfirmed: This SNAC contains no data

This is the SNAC sent to the auth server to request a new ICQ number. It should be the very first thing sent, after the initial "New Connection."

Length	Description
2 bytes	Family (0x0017)
2 bytes	Subtype (0x0004)
2 bytes	Flags
4 bytes	Snac Request ID
2 bytes	0x0001
2 bytes	Length L of the following
L bytes	DATA

DATA

The ICQ registration info. All chunks are in, uh, network byte order, I guess (the number "5" is sent as "x05 00").

Length	Description
2 bytes	0x0000
2 bytes	0x0000
2 bytes	0x2800
2 bytes	0x0300
4 bytes	0x0000 0000
4 bytes	0x0000 0000
2 bytes	0xec38 0000 - Some type of random cookie?
2 bytes	0xec38 0000 - Same number as above
4 bytes	0x0000 0000
4 bytes	0x0000 0000
4 bytes	0x0000 0000
4 bytes	0x0000 0000
2 bytes	Length L of the following
L bytes	The password you wish to use for the new ICQ account. In plain text and null terminated.
2 bytes	0xec38 0000 - Same number as above
2 bytes	0x0000
2 bytes	0x0602. 0x1502 has also been seen

From Aleksandr Shutko: SNAC(17,04) registration request SNAC(17,04) BUCP__REGISTER_REQUEST

Use this snac when you need new ICQ account (uin/password). Server should reply with SNAC(17,05) containing new uin. This snac mean that registration finished succesfully. Server also can reply with SNAC(17,01) if it can't create new user account.  00 17   word   SNAC family  00 04   word   SNAC subtype  00 00   word   SNAC flags  xx xx xx xx   dword   SNAC request-id  00 01   word   TLV.Type(0x01)  xx xx   word   TLV.Length  00 00 00 00   dword   just zeros  28 00   word   subcmd (request new uin)  03 00   word   sequence  00 00 00 00   dword   just zeros  00 00 00 00   dword   just zeros  xx xx xx xx   dword   registration cookie  xx xx xx xx   dword   registration cookie (the same)  00 00 00 00   dword   just zeros  00 00 00 00   dword   just zeros  00 00 00 00   dword   just zeros  00 00 00 00   dword   just zeros  xx xx   word   password string len (LE)  xx .. xx 00   string   password string (asciiz)  xx xx xx xx   dword   registration cookie (the same)  00 00 00 00   dword   just zeros  xx xx   word   unknown value (random?)

Example SNAC dump with flap header:

2A 02 38 C7 00 49 00 17 00 04 00 00 00 00 00 00 *.8..... ........ 00 01 00 3B 00 00 00 00 28 00 03 00 00 00 00 00 ...;.... (....... 00 00 00 00 3C 38 00 00 3C 38 00 00 00 00 00 00 .....8.. .8...... 00 00 00 00 00 00 00 00 00 00 00 00 09 00 70 61 ........ ......pa 73 73 77 6F 72 64 00 3C 38 00 00 00 00 D1 01 ssword.. 8......

BUCP SNACs

SNAC List

Subgroup Origin Name 0x0001 Any BUCP__ERR This is the error SNAC for the BUCP foodgroup. 0x0002 Client BUCP__LOGIN_REQUEST Client login request. 0x0003 Host BUCP__LOGIN_RESPONSE Host login response, will contain reconnect information with login cookie or an error code and/or URL. 0x0004 Client BUCP__REGISTER_REQUEST Client registration for legacy ICQ clients. 0x0005 Host BUCP__REGISTER_RESPONSE Host response to BUCP__REGISTER_REQUEST. May contain confirmation of registration or an error code and/or URL. 0x0006 Client BUCP__CHALLENGE_REQUEST Request challenge for login request. 0x0007 Host BUCP__CHALLENGE_RESPONSE Response to BUCP__CHALLENGE_REQUEST with challenge. 0x0008 Client BUCP__ASASN_REQUEST AOL Suggest A Screenname Request, suggests screennames based on other parameters. 0x0009 Host BUCP__ASASN_RESPONSE Response to BUCP__ASASN_REQUEST with a list of suggestions 0x000A Host BUCP__SECURID_REQUEST Host SecurID request for client to continue logging in. 0x000B Client BUCP__SECURID_RESPONSE Client response to BUCP__SECURID_RESPONSE with SecurID code. 0x000C Client BUCP__REGISTRATION_IMAGE_REQUEST Request registration image, or CAPTCHA 0x000D Host BUCP__REGISTRATION_IMAGE_REPLY Response to BUCP__REGISTRATION_IMAGE_REQUEST containing image information