asn1/m3ap/packet-m3ap-template.c

   1 /* packet-m3ap.c
   2  * Routines for M3 Application Protocol packet dissection
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  *
  24  * Reference: 3GPP TS 36.444 v11.0.0
  25  */
  26
  27 #include "config.h"
  28
  29 #include <glib.h>
  30 #include <epan/packet.h>
  31
  32 #include <epan/strutil.h>
  33 #include <epan/asn1.h>
  34 #include <epan/sctpppids.h>
  35
  36 #include "packet-ber.h"
  37 #include "packet-per.h"
  38 #include "packet-e212.h"
  39 #include "packet-gtpv2.h"
  40 #include "packet-ntp.h"
  41
  42 #define PNAME  "M3 Application Protocol"
  43 #define PSNAME "M3AP"
  44 #define PFNAME "m3ap"
  45
  46 void proto_register_m3ap(void);
  47 void proto_reg_handoff_m3ap(void);
  48
  49 /* M3AP uses port 36444 as recommended by IANA. */
  50 #define M3AP_PORT 36444
  51 static dissector_handle_t m3ap_handle=NULL;
  52
  53 #include "packet-m3ap-val.h"
  54
  55 /* Initialize the protocol and registered fields */
  56 static int proto_m3ap = -1;
  57
  58 static int hf_m3ap_Absolute_Time_ofMBMS_Data_value = -1;
  59 static int hf_m3ap_IPAddress = -1;
  60
  61 #include "packet-m3ap-hf.c"
  62
  63 /* Initialize the subtree pointers */
  64 static int ett_m3ap = -1;
  65
  66 #include "packet-m3ap-ett.c"
  67
  68 enum{
  69   INITIATING_MESSAGE,
  70   SUCCESSFUL_OUTCOME,
  71   UNSUCCESSFUL_OUTCOME
  72 };
  73
  74 /* Global variables */
  75 static guint32 ProcedureCode;
  76 static guint32 ProtocolIE_ID;
  77 static guint32 ProtocolExtensionID;
  78 static int global_m3ap_port = M3AP_PORT;
  79 static guint32 message_type;
  80
  81 /* Dissector tables */
  82 static dissector_table_t m3ap_ies_dissector_table;
  83 static dissector_table_t m3ap_extension_dissector_table;
  84 static dissector_table_t m3ap_proc_imsg_dissector_table;
  85 static dissector_table_t m3ap_proc_sout_dissector_table;
  86 static dissector_table_t m3ap_proc_uout_dissector_table;
  87
  88 static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
  89 static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
  90 static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
  91 static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
  92 static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
  93
  94 #include "packet-m3ap-fn.c"
  95
  96 static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
  97 {
  98   return (dissector_try_uint(m3ap_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
  99 }
 100
 101 static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 102 {
 103   return (dissector_try_uint(m3ap_extension_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
 104 }
 105
 106 static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 107 {
 108   return (dissector_try_uint(m3ap_proc_imsg_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
 109 }
 110
 111 static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 112 {
 113   return (dissector_try_uint(m3ap_proc_sout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
 114 }
 115
 116 static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 117 {
 118   return (dissector_try_uint(m3ap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_length(tvb) : 0;
 119 }
 120
 121
 122 static void
 123 dissect_m3ap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 124 {
 125   proto_item      *m3ap_item = NULL;
 126   proto_tree      *m3ap_tree = NULL;
 127
 128   /* make entry in the Protocol column on summary display */
 129   col_set_str(pinfo->cinfo, COL_PROTOCOL, PNAME);
 130
 131   /* create the m3ap protocol tree */
 132   if (tree) {
 133     m3ap_item = proto_tree_add_item(tree, proto_m3ap, tvb, 0, -1, ENC_NA);
 134     m3ap_tree = proto_item_add_subtree(m3ap_item, ett_m3ap);
 135
 136     dissect_M3AP_PDU_PDU(tvb, pinfo, m3ap_tree, NULL);
 137   }
 138 }
 139 /*--- proto_register_m3ap -------------------------------------------*/
 140 void proto_register_m3ap(void) {
 141
 142   /* List of fields */
 143   static hf_register_info hf[] = {
 144     { &hf_m3ap_Absolute_Time_ofMBMS_Data_value,
 145       { "Absolute-Time-ofMBMS-Data-value", "m3ap.Absolute_Time_ofMBMS_Data_value",
 146          FT_STRING, BASE_NONE, NULL, 0,
 147          NULL, HFILL }
 148     },
 149     { &hf_m3ap_IPAddress,
 150       { "IPAddress", "m3ap.IPAddress",
 151          FT_IPv6, BASE_NONE, NULL, 0,
 152          NULL, HFILL }
 153     },
 154
 155 #include "packet-m3ap-hfarr.c"
 156   };
 157
 158   /* List of subtrees */
 159   static gint *ett[] = {
 160                   &ett_m3ap,
 161 #include "packet-m3ap-ettarr.c"
 162   };
 163
 164
 165   /* Register protocol */
 166   proto_m3ap = proto_register_protocol(PNAME, PSNAME, PFNAME);
 167   /* Register fields and subtrees */
 168   proto_register_field_array(proto_m3ap, hf, array_length(hf));
 169   proto_register_subtree_array(ett, array_length(ett));
 170
 171   /* Register dissector tables */
 172   m3ap_ies_dissector_table = register_dissector_table("m3ap.ies", "M3AP-PROTOCOL-IES", FT_UINT32, BASE_DEC);
 173   m3ap_extension_dissector_table = register_dissector_table("m3ap.extension", "M3AP-PROTOCOL-EXTENSION", FT_UINT32, BASE_DEC);
 174   m3ap_proc_imsg_dissector_table = register_dissector_table("m3ap.proc.imsg", "M3AP-ELEMENTARY-PROCEDURE InitiatingMessage", FT_UINT32, BASE_DEC);
 175   m3ap_proc_sout_dissector_table = register_dissector_table("m3ap.proc.sout", "M3AP-ELEMENTARY-PROCEDURE SuccessfulOutcome", FT_UINT32, BASE_DEC);
 176   m3ap_proc_uout_dissector_table = register_dissector_table("m3ap.proc.uout", "M3AP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", FT_UINT32, BASE_DEC);
 177 }
 178
 179
 180 /*--- proto_reg_handoff_m3ap ---------------------------------------*/
 181 void
 182 proto_reg_handoff_m3ap(void)
 183 {
 184   static gboolean inited = FALSE;
 185   static guint SctpPort;
 186
 187   if( !inited ) {
 188     m3ap_handle = create_dissector_handle(dissect_m3ap, proto_m3ap);
 189     dissector_add_uint("sctp.ppi", PROTO_3GPP_M3AP_PROTOCOL_ID, m3ap_handle);
 190     inited = TRUE;
 191 #include "packet-m3ap-dis-tab.c"
 192     dissector_add_uint("m3ap.extension", 17, new_create_dissector_handle(dissect_AllocationAndRetentionPriority_PDU, proto_m3ap));
 193   }
 194   else {
 195     if (SctpPort != 0) {
 196       dissector_delete_uint("sctp.port", SctpPort, m3ap_handle);
 197     }
 198   }
 199
 200   SctpPort = global_m3ap_port;
 201   if (SctpPort != 0) {
 202     dissector_add_uint("sctp.port", SctpPort, m3ap_handle);
 203   }
 204 }