asn1/ulp/packet-ulp-template.c

   1 /* packet-ulp.c
   2  * Routines for OMA UserPlane Location Protocol packet dissection
   3  * Copyright 2006, Anders Broman <anders.broman@ericsson.com>
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  *
  25  * ref OMA-TS-ULP-V1_0-20060127-C
  26  * http://www.openmobilealliance.org
  27  */
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <glib.h>
  34 #include <epan/packet.h>
  35 #include <epan/conversation.h>
  36 #include <epan/prefs.h>
  37
  38 #include <stdio.h>
  39 #include <string.h>
  40
  41 #include "packet-ulp.h"
  42
  43 #include "packet-ber.h"
  44 #include "packet-per.h"
  45 #include <epan/emem.h>
  46 #include "packet-tcp.h"
  47
  48 #define PNAME  "OMA UserPlane Location Protocol"
  49 #define PSNAME "ULP"
  50 #define PFNAME "ulp"
  51
  52 static dissector_handle_t ulp_handle=NULL;
  53 static dissector_handle_t rrlp_handle;
  54
  55 /* IANA Registered Ports
  56  * oma-ulp         7275/tcp    OMA UserPlane Location
  57  * oma-ulp         7275/udp    OMA UserPlane Location
  58  */
  59 guint gbl_ulp_port = 7275;
  60
  61 /* Initialize the protocol and registered fields */
  62 static int proto_ulp = -1;
  63
  64
  65 #define ULP_HEADER_SIZE 2
  66
  67 gboolean ulp_desegment = TRUE;
  68
  69 #include "packet-ulp-hf.c"
  70
  71 /* Initialize the subtree pointers */
  72 static gint ett_ulp = -1;
  73 #include "packet-ulp-ett.c"
  74
  75 /* Include constants */
  76 #include "packet-ulp-val.h"
  77
  78
  79 #include "packet-ulp-fn.c"
  80
  81
  82 static guint
  83 get_ulp_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
  84 {
  85         /* PDU length = Message length */
  86         return tvb_get_ntohs(tvb,offset);
  87 }
  88
  89 static void
  90 dissect_ulp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
  91 {
  92         tcp_dissect_pdus(tvb, pinfo, tree, ulp_desegment, ULP_HEADER_SIZE,
  93             get_ulp_pdu_len, dissect_ULP_PDU_PDU);
  94 }
  95 /*--- proto_reg_handoff_ulp ---------------------------------------*/
  96 void
  97 proto_reg_handoff_ulp(void)
  98 {
  99
 100         ulp_handle = create_dissector_handle(dissect_ulp_tcp, proto_ulp);
 101
 102         dissector_add("tcp.port", gbl_ulp_port, ulp_handle);
 103
 104         /* application/oma-supl-ulp */
 105         dissector_add_string("media_type","application/oma-supl-ulp", ulp_handle);
 106
 107         rrlp_handle = find_dissector("rrlp");
 108
 109 }
 110
 111
 112 /*--- proto_register_ulp -------------------------------------------*/
 113 void proto_register_ulp(void) {
 114
 115   /* List of fields */
 116   static hf_register_info hf[] = {
 117
 118 #include "packet-ulp-hfarr.c"
 119   };
 120
 121   /* List of subtrees */
 122   static gint *ett[] = {
 123           &ett_ulp,
 124 #include "packet-ulp-ettarr.c"
 125   };
 126
 127   module_t *ulp_module;
 128
 129
 130   /* Register protocol */
 131   proto_ulp = proto_register_protocol(PNAME, PSNAME, PFNAME);
 132   /* Register fields and subtrees */
 133   proto_register_field_array(proto_ulp, hf, array_length(hf));
 134   proto_register_subtree_array(ett, array_length(ett));
 135
 136   ulp_module = prefs_register_protocol(proto_ulp,proto_reg_handoff_ulp);
 137
 138   prefs_register_bool_preference(ulp_module, "desegment_ulp_messages",
 139                 "Reassemble ULP messages spanning multiple TCP segments",
 140                 "Whether the ULP dissector should reassemble messages spanning multiple TCP segments."
 141                 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
 142                 &ulp_desegment);
 143
 144         /* Register a configuration option for port */
 145         prefs_register_uint_preference(ulp_module, "tcp.port",
 146                                                                    "ULP TCP Port",
 147                                                                    "Set the TCP port for Ulp messages(IANA registerd port is 7275)",
 148                                                                    10,
 149                                                                    &gbl_ulp_port);
 150
 151 }
 152
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 155