/* packet-aim-ssi.c * Routines for AIM Instant Messenger (OSCAR) dissection, SNAC SSI * Copyright 2004, Jelmer Vernooij * Copyright 2000, Ralf Hoelzer * * $Id$ * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include "packet-aim.h" #define FAMILY_SSI 0x0013 #define FAMILY_SSI_TYPE_BUDDY 0x0000 #define FAMILY_SSI_TYPE_GROUP 0x0001 #define FAMILY_SSI_TYPE_PERMIT 0x0002 #define FAMILY_SSI_TYPE_DENY 0x0003 #define FAMILY_SSI_TYPE_PDINFO 0x0004 #define FAMILY_SSI_TYPE_PRESENCEPREFS 0x0005 #define FAMILY_SSI_TYPE_ICONINFO 0x0014 static const value_string aim_fnac_family_ssi_types[] = { { FAMILY_SSI_TYPE_BUDDY, "Buddy" }, { FAMILY_SSI_TYPE_GROUP, "Group" }, { FAMILY_SSI_TYPE_PERMIT, "Permit" }, { FAMILY_SSI_TYPE_DENY, "Deny" }, { FAMILY_SSI_TYPE_PDINFO, "PDINFO" }, { FAMILY_SSI_TYPE_PRESENCEPREFS, "Presence Preferences" }, { FAMILY_SSI_TYPE_ICONINFO, "Icon Info" }, { 0, NULL } }; #define SSI_RIGHTSINFO_TLV_MAX_ITEMS 0x0004 static const aim_tlv ssi_rightsinfo_tlvs[] = { { SSI_RIGHTSINFO_TLV_MAX_ITEMS, "Maximums For Items", dissect_aim_tlv_value_bytes }, { 0, NULL, NULL }, }; /* Initialize the protocol and registered fields */ static int proto_aim_ssi = -1; static int hf_aim_fnac_subtype_ssi_version = -1; static int hf_aim_fnac_subtype_ssi_numitems = -1; static int hf_aim_fnac_subtype_ssi_last_change_time = -1; static int hf_aim_fnac_subtype_ssi_buddyname_len = -1; static int hf_aim_fnac_subtype_ssi_buddyname = -1; static int hf_aim_fnac_subtype_ssi_gid = -1; static int hf_aim_fnac_subtype_ssi_bid = -1; static int hf_aim_fnac_subtype_ssi_type = -1; static int hf_aim_fnac_subtype_ssi_tlvlen = -1; static int hf_aim_fnac_subtype_ssi_data = -1; /* Initialize the subtree pointers */ static gint ett_aim_ssi = -1; static gint ett_ssi = -1; static int dissect_ssi_item(tvbuff_t *tvb, packet_info *pinfo _U_, int offset, proto_tree *ssi_entry) { guint16 buddyname_length = 0; int endoffset; guint16 tlv_len = 0; /* Buddy Name Length */ buddyname_length = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssi_entry, hf_aim_fnac_subtype_ssi_buddyname_len, tvb, offset, 2, FALSE); offset += 2; /* Buddy Name */ if (buddyname_length > 0) { proto_tree_add_item(ssi_entry, hf_aim_fnac_subtype_ssi_buddyname, tvb, offset, buddyname_length, FALSE); offset += buddyname_length; } /* Buddy group ID */ proto_tree_add_item(ssi_entry, hf_aim_fnac_subtype_ssi_gid, tvb, offset, 2, FALSE); offset += 2; /* Buddy ID */ proto_tree_add_item(ssi_entry, hf_aim_fnac_subtype_ssi_bid, tvb, offset, 2, FALSE); offset += 2; /* Buddy Type */ proto_tree_add_item(ssi_entry, hf_aim_fnac_subtype_ssi_type, tvb, offset, 2, FALSE); offset += 2; /* Size of the following TLV in bytes (as opposed to the number of TLV objects in the chain) */ tlv_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssi_entry, hf_aim_fnac_subtype_ssi_tlvlen, tvb, offset, 2, FALSE); offset += 2; endoffset = offset; /* For now, we just dump the TLV contents as-is, since there is not a TLV dissection utility that works based on total chain length */ while(endoffset < offset+tlv_len) { endoffset = dissect_aim_tlv(tvb, pinfo, endoffset, ssi_entry, client_tlvs); } return endoffset; } static int dissect_ssi_ssi_item(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ssi_entry) { return dissect_ssi_item(tvb, pinfo, 0, ssi_entry); } static int dissect_aim_ssi_rightsinfo(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ssi_tree) { return dissect_aim_tlv_sequence(tvb, pinfo, 0, ssi_tree, ssi_rightsinfo_tlvs); } static int dissect_aim_ssi_was_added(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ssi_tree) { return dissect_aim_buddyname(tvb, pinfo, 0, ssi_tree); } static int dissect_aim_snac_ssi_list(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { int offset = 0; proto_item *ti; proto_tree *ssi_entry = NULL; guint16 num_items, i; /* SSI Version */ proto_tree_add_item(tree, hf_aim_fnac_subtype_ssi_version, tvb, offset, 1, FALSE); offset += 1; /* Number of items */ proto_tree_add_item(tree, hf_aim_fnac_subtype_ssi_numitems, tvb, offset, 2, FALSE); num_items = tvb_get_ntohs(tvb, offset); offset += 2; for(i = 0; i < num_items; i++) { ti = proto_tree_add_text(tree, tvb, offset, tvb_get_ntohs(tvb, offset+10)+10, "SSI Entry"); ssi_entry = proto_item_add_subtree(ti, ett_aim_ssi); offset = dissect_ssi_item(tvb, pinfo, offset, ssi_entry); } proto_tree_add_item(tree, hf_aim_fnac_subtype_ssi_last_change_time, tvb, offset, 4, FALSE); return offset; } static const aim_subtype aim_fnac_family_ssi[] = { { 0x0001, "Error", dissect_aim_snac_error }, { 0x0002, "Request Rights", NULL }, { 0x0003, "Rights Info", dissect_aim_ssi_rightsinfo }, { 0x0004, "Request List (first time)", NULL }, { 0x0005, "Request List", NULL }, { 0x0006, "List", dissect_aim_snac_ssi_list }, { 0x0007, "Activate", NULL }, { 0x0008, "Add Buddy", dissect_ssi_ssi_item }, { 0x0009, "Modify Buddy", dissect_ssi_ssi_item }, { 0x000a, "Delete Buddy", dissect_ssi_ssi_item }, { 0x000e, "Server Ack", NULL }, { 0x000f, "No List", NULL }, { 0x0011, "Edit Start", NULL }, { 0x0012, "Edit Stop", NULL }, { 0x0014, "Grant Future Authorization to Buddy", NULL }, { 0x0015, "Future Authorization Granted", NULL }, { 0x0018, "Send Authentication Request", NULL }, { 0x0019, "Authentication Request", NULL }, { 0x001a, "Send Authentication Reply", NULL }, { 0x001b, "Authentication Reply", NULL }, { 0x001c, "Remote User Added Client To List", dissect_aim_ssi_was_added }, { 0, NULL, NULL } }; /* Register the protocol with Ethereal */ void proto_register_aim_ssi(void) { /* Setup list of header fields */ static hf_register_info hf[] = { { &hf_aim_fnac_subtype_ssi_version, { "SSI Version", "aim.fnac.ssi.version", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_numitems, { "SSI Object count", "aim.fnac.ssi.numitems", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_last_change_time, { "SSI Last Change Time", "aim.fnac.ssi.last_change_time", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_buddyname_len, { "SSI Buddy Name length", "aim.fnac.ssi.buddyname_len", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_buddyname, { "Buddy Name", "aim.fnac.ssi.buddyname", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_gid, { "SSI Buddy Group ID", "aim.fnac.ssi.gid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_bid, { "SSI Buddy ID", "aim.fnac.ssi.bid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_type, { "SSI Buddy type", "aim.fnac.ssi.type", FT_UINT16, BASE_HEX, VALS(aim_fnac_family_ssi_types), 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_tlvlen, { "SSI TLV Len", "aim.fnac.ssi.tlvlen", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_fnac_subtype_ssi_data, { "SSI Buddy Data", "aim.fnac.ssi.data", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_aim_ssi, &ett_ssi, }; /* Register the protocol name and description */ proto_aim_ssi = proto_register_protocol("AIM Server Side Info", "AIM SSI", "aim_ssi"); /* Required function calls to register the header fields and subtrees used */ proto_register_field_array(proto_aim_ssi, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_aim_ssi(void) { aim_init_family(proto_aim_ssi, ett_aim_ssi, FAMILY_SSI, aim_fnac_family_ssi); }