Protocols/OSCAR/SNAC/ICBM HOST ACK

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
0x0004, 0x000C	Host	ICBM__HOST_ACK	Unspecified	BOS	Active	1.25

This SNAC is sent by the host upon receipt of any ICBM__CHANNEL_MSG_TOHOST which includes the optional ICBM__TLV_TAGS_REQUEST_HOST_ACK TLV.

SNAC Header

Foodgroup	uint16 (word)	00 04
Subgroup	uint16 (word)	00 0C
Flags	uint16 (word)	00 00
Request ID	uint32 (dword)	00 00 00 00

SNAC Data

"Cookie", "channel", and "username" should be provided in the inter-client message being acknowledged.

Name	Type	Notes
cookie	ICBM Cookie	Opaque data generated by conversation initiator and used to link up the conversation and errors
channel	uint16 (word)	[Class: ICBM__CHANNELS] Channel the message is on
username	string08	Destination username that should receive the message
ackTlvs	Rest of SNAC array of TLV	[Class: ICBM__ACK_TLV_TAGS] Extra TLVs in the response

TLV Class: ICBM__ACK_TLV_TAGS

These are the TLV tags used in HOST_ACK SNACs. New tags may be defined for future use

Name	Tag	Type	Notes

From Aleksandr Shutko: SNAC(04,0C) server message ack SNAC(04,0C) ICBM__HOST_ACK

This is the server ack for client message sent via SNAC(04,06). Server send it only if client requested it via empty TLV(3) in message snac. This ack mean that server accepted message for delivery.  00 04   word   SNAC family  00 0C   word   SNAC subtype  00 00   word   SNAC flags  xx xx xx xx   dword   SNAC request-id  xx xx xx xx  xx xx xx xx   msgid   client message id cookie (8 bytes)  00 02   word   message channel  xx   char   sender uin string len  xx ..   string   sender uin string

Example SNAC dump with flap header:

2A 02 39 37 00 1D 00 04 00 0C 00 00 00 0C 00 06 *.97............ AB A5 F5 29 29 1D 00 00 00 02 08 35 32 39 34 33 ...))......52943 31 32 37 127

ICBM SNACs

SNAC List

Subgroup Origin Name 0x0001 Any ICBM__ERR This is the error SNAC for the ICBM foodgroup. 0x0002 Client ICBM__ADD_PARAMETERS This SNAC is typically sent prior to sending the OSERVICE__CLIENT_ONLINE so that the host is properly initialized with the clients' preferences. 0x0003 Client ICBM__DEL_PARAMETERS These are the delete all parameters for a given channel. 0x0004 Client ICBM__PARAMETER_QUERY This SNAC requests ICBM parameters from the host. 0x0005 Host ICBM__PARAMETER_REPLY This SNAC is sent by the host in response to a ICBM__PARAMETER_QUERY. 0x0006 Client ICBM__CHANNEL_MSG_TOHOST This is the basic inter-client message after which the group was named (Inter-Client Basic Messages). 0x0007 Host ICBM__CHANNEL_MSG_TOCLIENT This is the ICBM__CHANNEL_MSG_TOHOST after it has been reformatted by the host and sent to the destination client. 0x0008 Client ICBM__EVIL_REQUEST This requests that the specified user is sent an EVIL notification. 0x0009 Host ICBM__EVIL_REPLY The reply tells the requester, the sender of an ICBM__EVIL_REQUEST SNAC, how much EVIL, if any, was applied to the recipient. 0x000A Host ICBM__MISSED_CALLS When the host is unable to send one or more messages to the client, the host sends this SNAC to the client to let it know that it missed some messages ("calls"). 0x000B Any ICBM__CLIENT_ERR This error notice is one of the few SNACs that can be sent to the host and received by a client. 0x000C Host ICBM__HOST_ACK This SNAC is sent by the host upon receipt of any ICBM__CHANNEL_MSG_TOHOST which includes the optional ICBM__TLV_TAGS_REQUEST_HOST_ACK TLV. 0x000D NCD ICBM__SIN_STORED This is not currently documented. Want to contribute? 0x000E NCD ICBM__SIN_LIST_QUERY This is not currently documented. Want to contribute? 0x000F NCD ICBM__SIN_LIST_REPLY This is not currently documented. Want to contribute? 0x0010 Client ICBM__SIN_RETRIEVE This requests ICBM__CHANNEL_MSG_TOCLIENT messages be generated for each of the stored ICBMs. Any message retrieved is deleted. 0x0011 NCD ICBM__SIN_DELETE This is not currently documented. Want to contribute? 0x0012 NCD ICBM__NOTIFY_REQUEST This is not currently documented. Want to contribute? 0x0013 NCD ICBM__NOTIFY_REPLY This is not currently documented. Want to contribute? 0x0014 Any ICBM__CLIENT_EVENT This SNAC is sent as a control message, sent by a client to inform the recipient of an event, or by the host informing of an event. 0x0017 Host ICBM__SIN_REPLY The host successfully processed the request to retrieve all the offline messages.