/* packet-aim-signon.c * Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Signon * Copyright 2004, Jelmer Vernooij * Copyright 2000, Ralf Hoelzer * * $Id: packet-aim-signon.c,v 1.3 2004/04/26 18:21:10 obiot Exp $ * * 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_SIGNON 0x0017 /* Family Signon */ #define FAMILY_SIGNON_ERROR 0x0001 #define FAMILY_SIGNON_LOGON 0x0002 #define FAMILY_SIGNON_LOGON_REPLY 0x0003 #define FAMILY_SIGNON_UIN_REQ 0x0004 #define FAMILY_SIGNON_UIN_REPL 0x0005 #define FAMILY_SIGNON_SIGNON 0x0006 #define FAMILY_SIGNON_SIGNON_REPLY 0x0007 #define FAMILY_SIGNON_S_SECUREID_REQ 0x000a #define FAMILY_SIGNON_C_SECUREID_REP 0x000b static const value_string aim_fnac_family_signon[] = { { FAMILY_SIGNON_LOGON, "Logon" }, { FAMILY_SIGNON_LOGON_REPLY, "Logon Reply" }, { FAMILY_SIGNON_UIN_REQ, "Request UIN" }, { FAMILY_SIGNON_UIN_REPL, "New UIN response" }, { FAMILY_SIGNON_SIGNON, "Sign-on" }, { FAMILY_SIGNON_SIGNON_REPLY, "Sign-on Reply" }, { FAMILY_SIGNON_S_SECUREID_REQ, "Server SecureID Request" }, { FAMILY_SIGNON_C_SECUREID_REP, "Client SecureID Reply" }, { 0, NULL } }; static int dissect_aim_snac_signon(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); static int dissect_aim_snac_signon_logon(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree); static int dissect_aim_snac_signon_logon_reply(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree); static int dissect_aim_snac_signon_signon(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree); static int dissect_aim_snac_signon_signon_reply(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree); /* Initialize the protocol and registered fields */ static int proto_aim_signon = -1; static int hf_aim_infotype = -1; static int hf_aim_signon_challenge_len = -1; static int hf_aim_signon_challenge = -1; /* Initialize the subtree pointers */ static gint ett_aim_signon = -1; static int dissect_aim_snac_signon(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { struct aiminfo *aiminfo = pinfo->private_data; int offset = 0; proto_item *ti = NULL; proto_tree *signon_tree = NULL; if(tree) { ti = proto_tree_add_text(tree, tvb, 0, -1,"AIM Signon"); signon_tree = proto_item_add_subtree(ti, ett_aim_signon); } switch(aiminfo->subtype) { case FAMILY_SIGNON_ERROR: return dissect_aim_snac_error(tvb, pinfo, offset, signon_tree); case FAMILY_SIGNON_LOGON: return dissect_aim_snac_signon_logon(tvb, pinfo, offset, signon_tree); case FAMILY_SIGNON_LOGON_REPLY: return dissect_aim_snac_signon_logon_reply(tvb, pinfo, offset, signon_tree); case FAMILY_SIGNON_SIGNON: return dissect_aim_snac_signon_signon(tvb, pinfo, offset, signon_tree); case FAMILY_SIGNON_SIGNON_REPLY: return dissect_aim_snac_signon_signon_reply(tvb, pinfo, offset, signon_tree); case FAMILY_SIGNON_S_SECUREID_REQ: /* No data */ return 0; case FAMILY_SIGNON_UIN_REQ: case FAMILY_SIGNON_UIN_REPL: case FAMILY_SIGNON_C_SECUREID_REP: /*FIXME*/ default: return 0; } } static int dissect_aim_snac_signon_logon(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree) { while (tvb_length_remaining(tvb, offset) > 0) { offset = dissect_aim_tlv(tvb, pinfo, offset, tree, client_tlvs); } return offset; } static int dissect_aim_snac_signon_logon_reply(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree) { if (check_col(pinfo->cinfo, COL_INFO)) col_append_fstr(pinfo->cinfo, COL_INFO, ", Login information reply"); while (tvb_length_remaining(tvb, offset) > 0) { offset = dissect_aim_tlv(tvb, pinfo, offset, tree, client_tlvs); } return offset; } static int dissect_aim_snac_signon_signon(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree) { guint8 buddyname_length = 0; char buddyname[MAX_BUDDYNAME_LENGTH + 1]; /* Info Type */ proto_tree_add_item(tree, hf_aim_infotype, tvb, offset, 2, FALSE); offset += 2; /* Unknown */ offset += 1; /* Buddy Name */ buddyname_length = aim_get_buddyname( buddyname, tvb, offset, offset + 1 ); if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, " Username: %s", buddyname); } if(tree) { proto_tree_add_text(tree, tvb, offset + 1, buddyname_length, "Screen Name: %s", buddyname); } offset += buddyname_length + 1; return offset; } static int dissect_aim_snac_signon_signon_reply(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree) { guint16 challenge_length = 0; if (check_col(pinfo->cinfo, COL_INFO)) col_append_fstr(pinfo->cinfo, COL_INFO, ", Sign-on reply"); /* Logon Challenge Length */ challenge_length = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf_aim_signon_challenge_len, tvb, offset, 2, FALSE); offset += 2; /* Challenge */ proto_tree_add_item(tree, hf_aim_signon_challenge, tvb, offset, challenge_length, FALSE); offset += challenge_length; return offset; } /* Register the protocol with Ethereal */ void proto_register_aim_signon(void) { /* Setup list of header fields */ static hf_register_info hf[] = { { &hf_aim_infotype, { "Infotype", "aim.infotype", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_signon_challenge_len, { "Signon challenge length", "aim.signon.challengelen", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_aim_signon_challenge, { "Signon challenge", "aim.signon.challenge", FT_STRING, BASE_HEX, NULL, 0x0, "", HFILL } }, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_aim_signon, }; /* Register the protocol name and description */ proto_aim_signon = proto_register_protocol("AIM Signon", "AIM Signon", "aim_signon"); /* Required function calls to register the header fields and subtrees used */ proto_register_field_array(proto_aim_signon, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_aim_signon(void) { dissector_handle_t aim_handle; aim_handle = new_create_dissector_handle(dissect_aim_snac_signon, proto_aim_signon); dissector_add("aim.family", FAMILY_SIGNON, aim_handle); aim_init_family(FAMILY_SIGNON, "Signon", aim_fnac_family_signon); }