epan/dissectors/packet-yhoo.c

   1 /* packet-yhoo.c
   2  * Routines for yahoo messenger packet dissection
   3  * Copyright 1999, Nathan Neulinger <nneul@umr.edu>
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * Copied from packet-tftp.c
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26  */
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <string.h>
  33 #include <glib.h>
  34 #include <epan/packet.h>
  35
  36 static int proto_yhoo = -1;
  37 static int hf_yhoo_version = -1;
  38 static int hf_yhoo_len = -1;
  39 static int hf_yhoo_service = -1;
  40 static int hf_yhoo_connection_id = -1;
  41 static int hf_yhoo_magic_id = -1;
  42 static int hf_yhoo_unknown1 = -1;
  43 static int hf_yhoo_msgtype = -1;
  44 static int hf_yhoo_nick1 = -1;
  45 static int hf_yhoo_nick2 = -1;
  46 static int hf_yhoo_content = -1;
  47
  48 static gint ett_yhoo = -1;
  49
  50 #define TCP_PORT_YHOO   5050
  51
  52 /* This is from yahoolib.h from gtkyahoo */
  53
  54 /* Service constants */
  55 #define YAHOO_SERVICE_LOGON             1
  56 #define YAHOO_SERVICE_LOGOFF            2
  57 #define YAHOO_SERVICE_ISAWAY            3
  58 #define YAHOO_SERVICE_ISBACK            4
  59 #define YAHOO_SERVICE_IDLE              5
  60 #define YAHOO_SERVICE_MESSAGE           6
  61 #define YAHOO_SERVICE_IDACT             7
  62 #define YAHOO_SERVICE_IDDEACT           8
  63 #define YAHOO_SERVICE_MAILSTAT          9
  64 #define YAHOO_SERVICE_USERSTAT          10
  65 #define YAHOO_SERVICE_NEWMAIL           11
  66 #define YAHOO_SERVICE_CHATINVITE        12
  67 #define YAHOO_SERVICE_CALENDAR          13
  68 #define YAHOO_SERVICE_NEWPERSONALMAIL   14
  69 #define YAHOO_SERVICE_NEWCONTACT        15
  70 #define YAHOO_SERVICE_ADDIDENT          16
  71 #define YAHOO_SERVICE_ADDIGNORE         17
  72 #define YAHOO_SERVICE_PING              18
  73 #define YAHOO_SERVICE_GROUPRENAME       19
  74 #define YAHOO_SERVICE_SYSMESSAGE        20
  75 #define YAHOO_SERVICE_PASSTHROUGH2      22
  76 #define YAHOO_SERVICE_CONFINVITE        24
  77 #define YAHOO_SERVICE_CONFLOGON         25
  78 #define YAHOO_SERVICE_CONFDECLINE       26
  79 #define YAHOO_SERVICE_CONFLOGOFF        27
  80 #define YAHOO_SERVICE_CONFADDINVITE     28
  81 #define YAHOO_SERVICE_CONFMSG           29
  82 #define YAHOO_SERVICE_CHATLOGON         30
  83 #define YAHOO_SERVICE_CHATLOGOFF        31
  84 #define YAHOO_SERVICE_CHATMSG           32
  85 #define YAHOO_SERVICE_FILETRANSFER      70
  86 #define YAHOO_SERVICE_CHATADDINVITE 157
  87 #define YAHOO_SERVICE_AVATAR            188
  88 #define YAHOO_SERVICE_PICTURE_CHECKSUM  189
  89 #define YAHOO_SERVICE_PICTURE                   190
  90 #define YAHOO_SERVICE_PICTURE_UPDATE    193
  91 #define YAHOO_SERVICE_PICTURE_UPLOAD    194
  92 #define YAHOO_SERVICE_YAHOO6_STATUS_UPDATE 198
  93 #define YAHOO_SERVICE_AVATAR_UPDATE             199
  94 #define YAHOO_SERVICE_AUDIBLE                   208
  95 #define YAHOO_SERVICE_WEBLOGIN                  550
  96 #define YAHOO_SERVICE_SMS_MSG                   746
  97
  98
  99 /* Message flags */
 100 #define YAHOO_MSGTYPE_NONE      0
 101 #define YAHOO_MSGTYPE_NORMAL    1
 102 #define YAHOO_MSGTYPE_BOUNCE    2
 103 #define YAHOO_MSGTYPE_STATUS    4
 104 #define YAHOO_MSGTYPE_OFFLINE   1515563606      /* yuck! */
 105
 106 struct yahoo_rawpacket
 107 {
 108         char version[8];                /* 7 chars and trailing null */
 109         unsigned char len[4];           /* length - little endian */
 110         unsigned char service[4];       /* service - little endian */
 111         unsigned char connection_id[4]; /* connection number - little endian */
 112         unsigned char magic_id[4];      /* magic number used for http session */
 113         unsigned char unknown1[4];
 114         unsigned char msgtype[4];
 115         char nick1[36];
 116         char nick2[36];
 117         char content[1];                /* was zero, had problems with aix xlc */
 118 };
 119
 120 static const value_string yhoo_service_vals[] = {
 121         {YAHOO_SERVICE_LOGON, "Pager Logon"},
 122         {YAHOO_SERVICE_LOGOFF, "Pager Logoff"},
 123         {YAHOO_SERVICE_ISAWAY, "Is Away"},
 124         {YAHOO_SERVICE_ISBACK, "Is Back"},
 125         {YAHOO_SERVICE_IDLE, "Idle"},
 126         {YAHOO_SERVICE_MESSAGE, "Message"},
 127         {YAHOO_SERVICE_IDACT, "Activate Identity"},
 128         {YAHOO_SERVICE_IDDEACT, "Deactivate Identity"},
 129         {YAHOO_SERVICE_MAILSTAT, "Mail Status"},
 130         {YAHOO_SERVICE_USERSTAT, "User Status"},
 131         {YAHOO_SERVICE_NEWMAIL, "New Mail"},
 132         {YAHOO_SERVICE_CHATINVITE, "Chat Invitation"},
 133         {YAHOO_SERVICE_CALENDAR, "Calendar Reminder"},
 134         {YAHOO_SERVICE_NEWPERSONALMAIL, "New Personals Mail"},
 135         {YAHOO_SERVICE_NEWCONTACT, "New Friend"},
 136         {YAHOO_SERVICE_GROUPRENAME, "Group Renamed"},
 137         {YAHOO_SERVICE_ADDIDENT, "Add Identity"},
 138         {YAHOO_SERVICE_ADDIGNORE, "Add Ignore"},
 139         {YAHOO_SERVICE_PING, "Ping"},
 140         {YAHOO_SERVICE_SYSMESSAGE, "System Message"},
 141         {YAHOO_SERVICE_CONFINVITE, "Conference Invitation"},
 142         {YAHOO_SERVICE_CONFLOGON, "Conference Logon"},
 143         {YAHOO_SERVICE_CONFDECLINE, "Conference Decline"},
 144         {YAHOO_SERVICE_CONFLOGOFF, "Conference Logoff"},
 145         {YAHOO_SERVICE_CONFMSG, "Conference Message"},
 146         {YAHOO_SERVICE_CONFADDINVITE, "Conference Additional Invitation"},
 147         {YAHOO_SERVICE_CHATLOGON, "Chat Logon"},
 148         {YAHOO_SERVICE_CHATLOGOFF, "Chat Logoff"},
 149         {YAHOO_SERVICE_CHATMSG, "Chat Message"},
 150         {YAHOO_SERVICE_FILETRANSFER, "File Transfer"},
 151         {YAHOO_SERVICE_PASSTHROUGH2, "Passthrough 2"},
 152         {YAHOO_SERVICE_CHATADDINVITE, "Chat add Invite"},
 153         {YAHOO_SERVICE_AVATAR, "Avatar"},
 154         {YAHOO_SERVICE_PICTURE_CHECKSUM, "Picture Checksum"},
 155         {YAHOO_SERVICE_PICTURE, "Picture"},
 156         {YAHOO_SERVICE_PICTURE_UPDATE, "Picture Update"},
 157         {YAHOO_SERVICE_PICTURE_UPLOAD, "Picture Upload"},
 158         {YAHOO_SERVICE_YAHOO6_STATUS_UPDATE, "Status update"},
 159         {YAHOO_SERVICE_AUDIBLE, "Audible"},
 160         {YAHOO_SERVICE_WEBLOGIN, "Weblogin"},
 161         {YAHOO_SERVICE_SMS_MSG, "SMS Message"},
 162         {0, NULL}
 163 };
 164
 165 static const value_string yhoo_msgtype_vals[] = {
 166         {YAHOO_MSGTYPE_NONE, "None"},
 167         {YAHOO_MSGTYPE_NORMAL, "Normal"},
 168         {YAHOO_MSGTYPE_BOUNCE, "Bounce"},
 169         {YAHOO_MSGTYPE_STATUS, "Status Update"},
 170         {YAHOO_MSGTYPE_OFFLINE, "Request Offline"},
 171         {0, NULL}
 172 };
 173
 174 static gboolean
 175 dissect_yhoo(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 176 {
 177         proto_tree      *yhoo_tree, *ti;
 178         int offset = 0;
 179
 180         if (pinfo->srcport != TCP_PORT_YHOO && pinfo->destport != TCP_PORT_YHOO) {
 181                 /* Not the Yahoo port - not a Yahoo Messenger packet. */
 182                 return FALSE;
 183         }
 184
 185         /* get at least a full packet structure */
 186         if ( tvb_length(tvb) < sizeof(struct yahoo_rawpacket) ) {
 187                 /* Not enough data captured; maybe it is a Yahoo
 188                    Messenger packet, but it contains too little data to
 189                    tell. */
 190                 return FALSE;
 191         }
 192
 193         if (tvb_memeql(tvb, offset, "YPNS", 4) != 0 &&
 194             tvb_memeql(tvb, offset, "YHOO", 4) != 0) {
 195                 /* Not a Yahoo Messenger packet. */
 196                 return FALSE;
 197         }
 198
 199         col_set_str(pinfo->cinfo, COL_PROTOCOL, "YHOO");
 200
 201         offset = 0;
 202         if (check_col(pinfo->cinfo, COL_INFO)) {
 203                 col_add_fstr(pinfo->cinfo, COL_INFO, "%s: %s",
 204                              ( tvb_memeql(tvb, offset + 0, "YPNS", 4) == 0 ) ? "Request" : "Response",
 205                              val_to_str(tvb_get_letohl(tvb, offset + 12),
 206                                         yhoo_service_vals, "Unknown Service: %u"));
 207         }
 208
 209         if (tree) {
 210                 ti = proto_tree_add_item(tree, proto_yhoo, tvb, offset, -1,
 211                         FALSE);
 212                 yhoo_tree = proto_item_add_subtree(ti, ett_yhoo);
 213
 214                 proto_tree_add_item(yhoo_tree, hf_yhoo_version, tvb,
 215                         offset, 8, ENC_ASCII|ENC_NA);
 216                 offset += 8;
 217
 218                 proto_tree_add_item(yhoo_tree, hf_yhoo_len, tvb,
 219                         offset, 4, ENC_LITTLE_ENDIAN);
 220                 offset += 4;
 221
 222                 proto_tree_add_item(yhoo_tree, hf_yhoo_service, tvb,
 223                         offset, 4, ENC_LITTLE_ENDIAN);
 224                 offset += 4;
 225
 226                 proto_tree_add_item(yhoo_tree, hf_yhoo_connection_id, tvb,
 227                         offset, 4, ENC_LITTLE_ENDIAN);
 228                 offset += 4;
 229
 230                 proto_tree_add_item(yhoo_tree, hf_yhoo_magic_id, tvb,
 231                         offset, 4, ENC_LITTLE_ENDIAN);
 232                 offset += 4;
 233
 234                 proto_tree_add_item(yhoo_tree, hf_yhoo_unknown1, tvb,
 235                         offset, 4, ENC_LITTLE_ENDIAN);
 236                 offset += 4;
 237
 238                 proto_tree_add_item(yhoo_tree, hf_yhoo_msgtype, tvb,
 239                         offset, 4, ENC_LITTLE_ENDIAN);
 240                 offset += 4;
 241
 242                 proto_tree_add_item(yhoo_tree, hf_yhoo_nick1, tvb,
 243                         offset, 36, ENC_ASCII|ENC_NA);
 244                 offset += 36;
 245
 246                 proto_tree_add_item(yhoo_tree, hf_yhoo_nick2, tvb,
 247                         offset, 36, ENC_ASCII|ENC_NA);
 248                 offset += 36;
 249
 250                 proto_tree_add_item(yhoo_tree, hf_yhoo_content, tvb, -1,
 251                         offset, ENC_ASCII|ENC_NA);
 252         }
 253
 254         return TRUE;
 255 }
 256
 257 void
 258 proto_register_yhoo(void)
 259 {
 260         static hf_register_info hf[] = {
 261                         { &hf_yhoo_service, {
 262                                 "Service Type", "yhoo.service", FT_UINT32, BASE_DEC,
 263                                 VALS(yhoo_service_vals), 0, NULL, HFILL }},
 264                         { &hf_yhoo_msgtype, {
 265                                 "Message Type", "yhoo.msgtype", FT_UINT32, BASE_DEC,
 266                                 VALS(yhoo_msgtype_vals), 0, "Message Type Flags", HFILL }},
 267                         { &hf_yhoo_connection_id, {
 268                                 "Connection ID", "yhoo.connection_id", FT_UINT32, BASE_HEX,
 269                                 NULL, 0, NULL, HFILL }},
 270                         { &hf_yhoo_magic_id, {
 271                                 "Magic ID", "yhoo.magic_id", FT_UINT32, BASE_HEX,
 272                                 NULL, 0, NULL, HFILL }},
 273                         { &hf_yhoo_unknown1, {
 274                                 "Unknown 1", "yhoo.unknown1", FT_UINT32, BASE_HEX,
 275                                 NULL, 0, NULL, HFILL }},
 276                         { &hf_yhoo_len, {
 277                                 "Packet Length", "yhoo.len", FT_UINT32, BASE_DEC,
 278                                 NULL, 0, NULL, HFILL }},
 279                         { &hf_yhoo_nick1, {
 280                                 "Real Nick (nick1)", "yhoo.nick1", FT_STRING, BASE_NONE,
 281                                 NULL, 0, NULL, HFILL }},
 282                         { &hf_yhoo_nick2, {
 283                                 "Active Nick (nick2)", "yhoo.nick2", FT_STRING, BASE_NONE,
 284                                 NULL, 0, NULL, HFILL }},
 285                         { &hf_yhoo_content, {
 286                                 "Content", "yhoo.content", FT_STRING, BASE_NONE,
 287                                 NULL, 0, "Data portion of the packet", HFILL }},
 288                         { &hf_yhoo_version, {
 289                                 "Version", "yhoo.version", FT_STRING, BASE_NONE,
 290                                 NULL, 0, "Packet version identifier", HFILL }},
 291         };
 292         static gint *ett[] = {
 293                 &ett_yhoo,
 294         };
 295
 296         proto_yhoo = proto_register_protocol("Yahoo Messenger Protocol",
 297             "YHOO", "yhoo");
 298
 299         proto_register_field_array(proto_yhoo, hf, array_length(hf));
 300
 301         proto_register_subtree_array(ett, array_length(ett));
 302 }
 303
 304 void
 305 proto_reg_handoff_yhoo(void)
 306 {
 307         /*
 308          * DO NOT register for port 5050, as that's used by the
 309          * old and new Yahoo messenger protocols.
 310          *
 311          * Just register as a heuristic TCP dissector, and reject stuff
 312          * not to or from that port.
 313          */
 314         heur_dissector_add("tcp", dissect_yhoo, proto_yhoo);
 315 }