Ethereal-dev: [Ethereal-dev] GSM MAP dissector
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: "Michael Lum" <mlum@xxxxxxxxxxxxx>
Date: Wed, 3 Dec 2003 15:32:34 -0800
cvs diff -u from latest source: Makefile.am.diff Makefile.nmake.diff Added packet-gsm_map.c AUTHORS.diff NEW: packet-gsm_map.c Original code came from dev mailing list by Felix Fei. Modified for better TCAP separation, fixed EOC handling (a la TCAP) added parameter parsing (although not dissection or naming). -- Michael Lum Architect 4600 Jacombs Road (604) 276-0055 Richmond, B.C. Canada V6V 3B1 Telos Technology Winner of the 2003 GSM Association Award for Technology Innovation Best Infrastructure
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/* packet-gsm_map.c
* Routines for GSM Mobile Application Part dissection
*
* Copyright 2000, Felix Fei <felix.fei [AT] utstar.com>
*
* Michael Lum <mlum [AT] telostech.com>,
* Changed to run on new version of TCAP, many changes for
* EOC matching, and parameter separation. (2003)
*
* $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@xxxxxxxxxxxx>
* Copyright 1998 Gerald Combs
*
* Copied from packet-tcap.c (where "WHATEVER_FILE_YOU_USED"
* is a dissector file; if you just copied this from README.developer,
* don't bother with the "Copied from" - you don't even need to put
* in a "Copied from" if you copied an existing dissector, especially
* if the bulk of the code in the new dissector is your code)
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "epan/packet.h"
#include "asn1.h"
/* OPERATION CODE DEFINITION */
/* LOCATION MANAGEMENT */
#define MAP_UPD_LOC 2 /* Update Location */
#define MAP_CANCEL_LOC 3 /* Cancel Location */
#define MAP_PURGE 67 /* Purge MS */
#define MAP_SEND_ID 5 /* Send Identification */
#define MAP_GPRS_UPD_LOC 23 /* GPRS Update Location */
#define MAP_DET_IMSI 5 /* Detach IMSI */
#define MAP_NOTE_MM_EVT 89 /* Note MM Event */
/* HANDOVER MANAGEMENT */
#define MAP_PREP_HO 68 /* Prepare Handover */
#define MAP_PREP_SUBS_HO 69 /* Prepare Subsequent Handover */
#define MAP_PERF_HO 28 /* Perform Handover */
#define MAP_PERF_SUBS_HO 30 /* Perform Subsequent Handover */
#define MAP_SEND_END_SIG 29 /* Send End Signal */
#define MAP_PROC_ACC_SIG 33 /* Process Access Signalling */
#define MAP_FWD_ACC_SIG 34 /* Forward Access Signalling */
/* AUTHENTICATION MANAGEMENT */
#define MAP_AUTH_INFO 56 /* Send Authintication Info */
#define MAP_AUTH_FAIL_RPT 15 /* Authentication Failure Report */
/* IDENTIFICATION MANAGEMENT */
#define MAP_CHK_IMEI 43 /* Check IMEI */
/* FAULT & RECOVERY MANAGEMENT */
#define MAP_RESET 37 /* Reset */
#define MAP_RESTORE_DATA 57 /* Restore Data */
#define MAP_FWD_CHK_SS_IND 38 /* Forward Check SS Indication */
/* OAM MANAGEMENT */
#define MAP_ACT_TRACE 50 /* Activate Trace */
#define MAP_DEACT_TRACE 51 /* Deactivate Trace Mode */
#define MAP_SEND_IMSI 58 /* Send IMSI */
#define MAP_TRACE_SUBS_ACTV 52 /* Trace Subscriber Activity */
#define MAP_NOTE_INTER_HO 35 /* Not Internal Handover */
/* CALL MANAGEMENT */
#define MAP_ROUTE_INFO 22 /* Send Routing Info */
#define MAP_PROV_ROAM_NUM 4 /* Provide Roaming Number */
#define MAP_PROV_SIWFS_NUM 31 /* Provide SIWFS Number */
#define MAP_SIWFS_SIG_MOD 32 /* SIWFS Signalling Modify */
#define MAP_RES_CALL_HAND 6 /* Resume Call Handling */
#define MAP_SET_RPT_STATE 73 /* Set Reporting State */
#define MAP_STAT_RPT 74 /* Status Report */
#define MAP_REM_USR_FREE 75 /* Remote user free */
#define MAP_PREP_GRP_CALL 39 /* Prepare Group Call */
#define MAP_SND_GRP_CALL_END_SIG 40 /* Send Group Call End Signalling */
#define MAP_PRO_GRP_CALL_SIG 41 /* Process Group Call Signalling */
#define MAP_FWD_GRP_CALL_SIG 42 /* Forward Group Call Signalling */
#define MAP_IST_ALERT 87 /* IST Alert */
#define MAP_IST_COMMAND 88 /* IST Command */
/* SS MANAGEMENT */
#define MAP_REG_SS 10 /* Register SS */
#define MAP_ERASE_SS 11 /* Erase SS */
#define MAP_ACT_SS 12 /* Activate SS */
#define MAP_DEACT_SS 13 /* Deactivate SS */
#define MAP_INTER_SS 14 /* Interogate SS */
#define MAP_PROC_U_SS_REQ 59 /* Process Unstructured SS Req */
#define MAP_U_SS_REQ 60 /* Unstructured SS Request */
#define MAP_U_SS_NOTIFY 61 /* Unstructured SS Notify */
#define MAP_REG_PASSWD 17 /* Register Password */
#define MAP_GET_PASSWD 18 /* Get Password */
#define MAP_REG_CC_ENT 76 /* Register CC Entry */
#define MAP_ERASE_CC_ENT 77 /* Erase CC Entry */
#define MAP_BEGIN_SUBS_ACTV 54 /* Begin Subscriber Activity */
#define MAP_PROC_U_SS_DATA 19 /* Process Unstructured SS Data */
#define MAP_SS_INV_NOTIFY 72 /* SS Invocation Notify */
/* SMS MANAGEMENT */
#define MAP_MO_FWD_SM 46 /* Forward Short Message */
#define MAP_MT_FWD_SM 44 /* MT-Fwd SM */
#define MAP_ROUTE_INFO_SM 45 /* Routing Info for SM */
#define MAP_SM_DEL_STAT 47 /* Report SM Delivery Status */
#define MAP_INFORM_SC 63 /* Inform Service Center */
#define MAP_ALERT_SC 64 /* Alert Service Center */
#define MAP_SM_READY 66 /* SM Ready */
#define MAP_NOTE_SUB_PRES 48 /* Note Subscriber Present */
#define MAP_ALERT_SC_W_RES 49 /* Alert SC Without Result */
/* SUBSCRIBER MANAGEMENT */
#define MAP_INS_SUB_DATA 7 /* Insert Subscriber Data */
#define MAP_DEL_SUB_DATA 8 /* Delete Subscriber Data */
#define MAP_PROV_SUB_INFO 70 /* Provide Subscriber Info */
#define MAP_ANY_TIME_INTER 71 /* Any Time Interrogation */
#define MAP_SEND_PARAM 9 /* Send Parameters */
#define MAP_ANY_TIME_SUB_DATA_INTER 62 /* Any Time Subscriber Info Interrogation */
#define MAP_ANY_TIME_MOD 65 /* Any Time Modification */
#define MAP_NOTE_SUB_DATA_MOD 5 /* Note Subscriber Data Modified */
/* PDP ACTIVE MANAGEMENT */
#define MAP_GPRS_ROUTE_INFO 24 /* Rout Info for GPRS */
#define MAP_FAIL_REP 25 /* Failure Report */
#define MAP_GPRS_NOTE_MS_PRES 26 /* GPRS NoteMs Present */
/* LOCATION SERVICE */
#define MAP_PROV_SUB_LOC 83 /* Provide Subscriber Location */
#define MAP_SEND_ROUTE_INFO_FOR_LCS 85 /* Send Routing Info For LCS */
#define MAP_SUB_LOC_REP 86 /* Subscriber Location Report */
#define MAP_OPR_CODE_TAG 0x02
#define MAP_INVOKE_ID_TAG 0x02
#define MAP_LINK_ID_TAG 0x80
#define MAP_SEQ_TAG 0x30
#define MAP_GE_PROBLEM_TAG 0x80
#define MAP_IN_PROBLEM_TAG 0x81
#define MAP_RR_PROBLEM_TAG 0x82
#define MAP_RE_PROBLEM_TAG 0x83
#define MAP_INVALID_TAG 0x00
#define MAP_OK 0x0
#define MAP_FAIL 0x1
static const value_string opr_code_strings[] = {
/* LOCATION MANAGEMENT */
{ MAP_UPD_LOC, "Update Location"},
{ MAP_CANCEL_LOC, "Cancel Location"},
{ MAP_PURGE, "Purge MS"},
{ MAP_SEND_ID, "Send Identification"},
{ MAP_GPRS_UPD_LOC, "Update GPRS Location"},
{ MAP_DET_IMSI, "Detach IMSI"},
{ MAP_NOTE_MM_EVT, "Note MM Event"},
/* HANDOVER MANAGEMENT */
{ MAP_PREP_HO, "Prepare Handover"},
{ MAP_PREP_SUBS_HO, "Prepare Subsequent Handover"},
{ MAP_PERF_HO, "Perform Handover"},
{ MAP_PERF_SUBS_HO, "Perform Subsequent Handover"},
{ MAP_SEND_END_SIG, "Send End Signal"},
{ MAP_PROC_ACC_SIG, "Process Access Signalling"},
{ MAP_FWD_ACC_SIG, "Forward Access Signalling"},
/* AUTHENTICATION MANAGEMENT */
{ MAP_AUTH_INFO, "Send Authentication Info"},
{ MAP_AUTH_FAIL_RPT, "Authentication Failure Report"},
/* IDENTIFICATION MANAGEMENT */
{ MAP_CHK_IMEI, "Check IMEI"},
/* FAULT & RECOVERY MANAGEMENT */
{ MAP_RESET, "Reset"},
{ MAP_RESTORE_DATA, "Restore Data"},
{ MAP_FWD_CHK_SS_IND, "Forward Check SS Indication"},
/* OAM MANAGEMENT */
{ MAP_ACT_TRACE, "Activate Trace Mode"},
{ MAP_DEACT_TRACE, "Deactivate Trace Mode"},
{ MAP_SEND_IMSI, "Send IMSI"},
{ MAP_TRACE_SUBS_ACTV, "Trace Subscriber Activity"},
{ MAP_NOTE_INTER_HO, "Note Internal Handover"},
/* CALL MANAGEMENT */
{ MAP_ROUTE_INFO, "Send Routing Info"},
{ MAP_PROV_ROAM_NUM, "Provide Roaming Number"},
{ MAP_PROV_SIWFS_NUM, "Provide SIWFS Number"},
{ MAP_SIWFS_SIG_MOD, "SIWFS Signalling Modify"},
{ MAP_RES_CALL_HAND, "Resume Call Handling"},
{ MAP_SET_RPT_STATE, "Set Reporting State"},
{ MAP_STAT_RPT, "Status Report"},
{ MAP_REM_USR_FREE, "Remote User Free"},
{ MAP_PREP_GRP_CALL, "Prepare Group Call"},
{ MAP_SND_GRP_CALL_END_SIG, "Send Group Call End Signalling"},
{ MAP_PRO_GRP_CALL_SIG, "Process Group Call Signalling"},
{ MAP_FWD_GRP_CALL_SIG, "Forward Group Call Signalling"},
{ MAP_IST_ALERT, "IST Alert"},
{ MAP_IST_COMMAND, "IST Command"},
/* SS MANAGEMENT */
{ MAP_REG_SS, "Register SS"},
{ MAP_ERASE_SS, "Erase SS"},
{ MAP_ACT_SS, "Activate SS"},
{ MAP_DEACT_SS, "Deactivate SS"},
{ MAP_INTER_SS, "Interogate SS"},
{ MAP_PROC_U_SS_REQ, "Process Unstructured SS Request"},
{ MAP_U_SS_REQ, "Unstructured SS Request"},
{ MAP_U_SS_NOTIFY, "Unstructured SS Notify"},
{ MAP_REG_PASSWD, "Register Password"},
{ MAP_GET_PASSWD, "Get Password"},
{ MAP_REG_CC_ENT, "Register CC Entry"},
{ MAP_ERASE_CC_ENT, "Erase CC Entry"},
{ MAP_BEGIN_SUBS_ACTV, "Begin Subscriber Activity"},
{ MAP_PROC_U_SS_DATA, "Process Unstructured SS Data"},
{ MAP_SS_INV_NOTIFY, "SS Invocation Notification"},
/* SMS MANAGEMENT */
{ MAP_MO_FWD_SM, "MO Forward SM"},
{ MAP_MT_FWD_SM, "MT Forward SM"},
{ MAP_ROUTE_INFO_SM, "Send Routing Info For SM"},
{ MAP_SM_DEL_STAT, "Report SM Delivery Status"},
{ MAP_INFORM_SC, "Inform Service Center"},
{ MAP_ALERT_SC, "Alert Service Center"},
{ MAP_SM_READY, "Ready For SM"},
{ MAP_NOTE_SUB_PRES, "Note Subscriber Present"},
{ MAP_ALERT_SC_W_RES, "Alert SC Without Result"},
/* SUBSCRIBER MANAGEMENT */
{ MAP_INS_SUB_DATA, "Insert Subscriber Data"},
{ MAP_DEL_SUB_DATA, "Delete Subscriber Data"},
{ MAP_PROV_SUB_INFO, "Provide Subscriber Info"},
{ MAP_ANY_TIME_INTER, "Any Time Interrogation"},
{ MAP_SEND_PARAM, "Send Parameters"},
{ MAP_ANY_TIME_SUB_DATA_INTER, "Any Time Subscription Interrogation"},
{ MAP_ANY_TIME_MOD, "Any Time Modification"},
{ MAP_NOTE_SUB_DATA_MOD, "Note Subscriber Data Modified"},
/* PDP ACTIVE MANAGEMENT */
{ MAP_GPRS_ROUTE_INFO, "Send Routing Info For GPRS"},
{ MAP_FAIL_REP, "Failure Report"},
{ MAP_GPRS_NOTE_MS_PRES, "Note MS Present For GPRS"},
/* LOCATION SERVICE */
{ MAP_PROV_SUB_LOC, "Provide Subscriber Location"},
{ MAP_SEND_ROUTE_INFO_FOR_LCS, "Send Routing Info For LCS"},
{ MAP_SUB_LOC_REP, "Subscriber Location Report"},
{ 0, NULL},
};
/* TCAP component type */
#define MAP_TC_INVOKE 0xa1
#define MAP_TC_RRL 0xa2
#define MAP_TC_RE 0xa3
#define MAP_TC_REJECT 0xa4
#define MAP_TC_RRN 0xa7
static const value_string tag_strings[] = {
{ MAP_TC_INVOKE, "Invoke" },
{ MAP_TC_RRL, "RetRes(Last)" },
{ MAP_TC_RE, "RetErr" },
{ MAP_TC_REJECT, "Reject" },
{ MAP_TC_RRN, "RetRes(Not Last)" },
{ 0, NULL},
};
/* Initialize the protocol and registered fields */
static int proto_map = -1;
static int hf_map_tag = -1;
static int hf_map_length = -1;
static int hf_map_opr_code = -1;
static int hf_map_int = -1;
/* Initialize the subtree pointers */
static gint ett_map = -1;
static gint ett_component = -1;
static gint ett_components = -1;
static gint ett_param = -1;
static gint ett_params = -1;
static gint ett_problem = -1;
static gint ett_opr_code = -1;
static char bigbuf[1024];
static dissector_handle_t data_handle;
static gboolean gsm_map_is_invoke;
static const value_string param_1_strings[] = {
{ 0x04, "IMSI" },
{ 0x81, "msc-Number" },
{ 0, NULL },
};
typedef struct dgt_set_t
{
unsigned char out[15];
}
dgt_set_t;
static dgt_set_t Dgt_tbcd = {
{
/* 0 1 2 3 4 5 6 7 8 9 a b c d e */
'0','1','2','3','4','5','6','7','8','9','?','B','C','*','#'
}
};
static dgt_set_t Dgt_msid = {
{
/* 0 1 2 3 4 5 6 7 8 9 a b c d e */
'0','1','2','3','4','5','6','7','8','9','?','?','?','?','?'
}
};
/* FUNCTIONS */
/*
* Unpack BCD input pattern into output ASCII pattern
*
* Input Pattern is supplied using the same format as the digits
*
* Returns: length of unpacked pattern
*/
static int
my_dgt_tbcd_unpack(
char *out, /* ASCII pattern out */
guchar *in, /* packed pattern in */
int num_octs, /* Number of octets to unpack */
dgt_set_t *dgt /* Digit definitions */
)
{
int cnt = 0;
unsigned char i;
while (num_octs)
{
/*
* unpack first value in byte
*/
i = *in++;
*out++ = dgt->out[i & 0x0f];
cnt++;
/*
* unpack second value in byte
*/
i >>= 4;
if (i == 0x0f) /* odd number bytes - hit filler */
break;
*out++ = dgt->out[i];
cnt++;
num_octs--;
}
*out = '\0';
return(cnt);
}
/* Generate, into "buf", a string showing the bits of a bitfield.
* Return a pointer to the character after that string.
*/
static char *
my_decode_bitfield_value(char *buf, guint32 val, guint32 mask, int width)
{
int i;
guint32 bit;
char *p;
i = 0;
p = buf;
bit = 1 << (width - 1);
for (;;)
{
if (mask & bit)
{
/* This bit is part of the field. Show its value. */
if (val & bit)
{
*p++ = '1';
}
else
{
*p++ = '0';
}
}
else
{
/* This bit is not part of the field. */
*p++ = '.';
}
bit >>= 1;
i++;
if (i >= width) break;
if (i % 4 == 0) *p++ = ' ';
}
*p = '\0';
return(p);
}
static gchar *
my_match_strval(guint32 val, const value_string *vs, gint *idx)
{
gint i = 0;
while (vs[i].strptr) {
if (vs[i].value == val)
{
*idx = i;
return(vs[i].strptr);
}
i++;
}
*idx = -1;
return(NULL);
}
static gboolean
check_map_tag(ASN1_SCK *asn1, guint tag)
{
guint saved_offset, real_tag;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0)
{
return(FALSE);
}
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &real_tag);
asn1->offset = saved_offset;
return(tag == real_tag);
}
/* PARAMETERS */
static void
param_imsi(ASN1_SCK *asn1, proto_tree *tree, guint len)
{
guint saved_offset;
guchar *poctets;
saved_offset = asn1->offset;
asn1_string_value_decode(asn1, len, &poctets);
my_dgt_tbcd_unpack(bigbuf, poctets, len, &Dgt_msid);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len, "IMSI %s", bigbuf);
}
static void
param_AddressString(ASN1_SCK *asn1, proto_tree *tree, guint len)
{
guint saved_offset;
gint32 value;
guchar *poctets;
gchar *str = NULL;
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, 1, &value);
my_decode_bitfield_value(bigbuf, value, 0x80, 8);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, 1,
"%s : %sxtension",
bigbuf, (value & 0x80) ? "No E" : "E");
switch ((value & 0x70) >> 4)
{
case 0x00: str = "unknown"; break;
case 0x01: str = "International Number"; break;
case 0x02: str = "National Significant Number"; break;
case 0x03: str = "Network Specific Number"; break;
case 0x04: str = "Subscriber Number"; break;
case 0x05: str = "Reserved"; break;
case 0x06: str = "Abbreviated Number"; break;
case 0x07: str = "Reserved for extension"; break;
}
my_decode_bitfield_value(bigbuf, value, 0x70, 8);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, asn1->offset - saved_offset,
"%s : %s",
bigbuf, str);
switch (value & 0x0f)
{
case 0x00: str = "unknown"; break;
case 0x01: str = "ISDN/Telephony Numbering (Rec ITU-T E.164)"; break;
case 0x02: str = "spare"; break;
case 0x03: str = "Data Numbering (ITU-T Rec. X.121)"; break;
case 0x04: str = "Telex Numbering (ITU-T Rec. F.69)"; break;
case 0x05: str = "spare"; break;
case 0x06: str = "Land Mobile Numbering (ITU-T Rec. E.212)"; break;
case 0x07: str = "spare"; break;
case 0x08: str = "National Numbering"; break;
case 0x09: str = "Private Numbering"; break;
case 0x0f: str = "Reserved for extension"; break;
default:
str = "Reserved";
break;
}
my_decode_bitfield_value(bigbuf, value, 0x0f, 8);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, asn1->offset - saved_offset,
"%s : %s",
bigbuf, str);
saved_offset = asn1->offset;
asn1_string_value_decode(asn1, len - 1, &poctets);
my_dgt_tbcd_unpack(bigbuf, poctets, len - 1, &Dgt_msid);
proto_tree_add_text(tree, asn1->tvb, saved_offset, len - 1,
"BCD Digits %s", bigbuf);
}
#define NUM_PARAM_1 (sizeof(param_1_strings)/sizeof(value_string))
static gint ett_param_1[NUM_PARAM_1];
static void (*param_1_fcn[])(ASN1_SCK *asn1, proto_tree *tree, guint len) = {
param_imsi, /* IMSI */
param_AddressString, /* msc-Number */
NULL, /* NONE */
};
/* MESSAGES */
static void
op_send_auth_info(ASN1_SCK *asn1, proto_tree *tree)
{
void (*param_fcn)(ASN1_SCK *asn1, proto_tree *tree, guint len) = NULL;
guint off_tree[100], saved_offset, len_offset;
int num_seq;
guint tag, len;
gboolean def_len = FALSE;
proto_item *item_tree[100], *item;
proto_tree *seq_tree[100], *use_tree, *subtree;
gchar *str = NULL;
gint ett_param_idx, idx;
num_seq = 0;
use_tree = tree;
while ((tvb_length_remaining(asn1->tvb, asn1->offset) > 0) &&
(!check_map_tag(asn1, 0)))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
len_offset = asn1->offset;
asn1_length_decode(asn1, &def_len, &len);
if (tag == MAP_SEQ_TAG)
{
item =
proto_tree_add_text(use_tree, asn1->tvb,
saved_offset, -1, "Sequence");
subtree = proto_item_add_subtree(item, ett_params);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb,
saved_offset, len_offset - saved_offset, tag, "Sequence Tag");
if (!def_len)
{
proto_tree_add_text(subtree, asn1->tvb,
len_offset, asn1->offset - len_offset, "Length: Indefinite");
seq_tree[num_seq] = subtree;
item_tree[num_seq] = item;
off_tree[num_seq] = saved_offset;
num_seq++;
}
else
{
proto_tree_add_uint(subtree, hf_map_length, asn1->tvb,
len_offset, asn1->offset - len_offset, len);
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
}
use_tree = subtree;
continue;
}
if (!def_len)
{
proto_tree_add_uint_format(use_tree, hf_map_tag, asn1->tvb,
saved_offset, len_offset - saved_offset, tag, "Parameter Tag");
proto_tree_add_text(use_tree, asn1->tvb,
len_offset, asn1->offset - len_offset, "Length: Indefinite");
seq_tree[num_seq] = use_tree;
item_tree[num_seq] = NULL;
num_seq++;
continue;
}
else
{
#ifdef MLUM
/*
* XXX
* how do you recognize the correct parameters here ?
*/
str = my_match_strval((guint32) tag, param_1_strings, &idx);
#else
str = NULL;
#endif
if (str == NULL)
{
str = "Parameter";
ett_param_idx = ett_param;
param_fcn = NULL;
}
else
{
ett_param_idx = ett_param_1[idx];
param_fcn = param_1_fcn[idx];
}
item =
proto_tree_add_text(use_tree, asn1->tvb,
saved_offset, -1, str);
subtree = proto_item_add_subtree(item, ett_param_idx);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb,
saved_offset, len_offset - saved_offset, tag, "Parameter Tag");
proto_tree_add_uint(subtree, hf_map_length, asn1->tvb,
len_offset, asn1->offset - len_offset, len);
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
if (param_fcn == NULL)
{
proto_tree_add_text(subtree, asn1->tvb,
asn1->offset, len, "Parameter Data");
asn1->offset += len;
}
else
{
(*param_fcn)(asn1, subtree, len);
}
}
if (tvb_length_remaining(asn1->tvb, asn1->offset) <=0) break;
while ((num_seq > 0) &&
asn1_eoc(asn1, -1))
{
saved_offset = asn1->offset;
asn1_eoc_decode(asn1, -1);
proto_tree_add_text(seq_tree[num_seq-1], asn1->tvb,
saved_offset, asn1->offset - saved_offset, "End of Contents");
if (item_tree[num_seq-1] != NULL)
{
proto_item_set_len(item_tree[num_seq-1], asn1->offset - off_tree[num_seq-1]);
}
num_seq--;
}
}
}
#define GSM_MAP_NUM_OP (sizeof(opr_code_strings)/sizeof(value_string))
static gint ett_op[GSM_MAP_NUM_OP];
static void (*op_fcn[])(ASN1_SCK *asn1, proto_tree *tree) = {
NULL, /* Update Location */
NULL, /* Cancel Location */
NULL, /* Purge MS */
NULL, /* Send Identification */
NULL, /* Update GPRS Location */
NULL, /* Detach IMSI */
NULL, /* Note MM Event */
NULL, /* Prepare Handover */
NULL, /* Prepare Subsequent Handover */
NULL, /* Perform Handover */
NULL, /* Perform Subsequent Handover */
NULL, /* Send End Signal */
NULL, /* Process Access Signalling */
NULL, /* Forward Access Signalling */
op_send_auth_info, /* Send Authentication Info */
NULL, /* Authentication Failure Report */
NULL, /* Check IMEI */
NULL, /* Reset */
NULL, /* Restore Data */
NULL, /* Forward Check SS Indication */
NULL, /* Activate Trace Mode */
NULL, /* Deactivate Trace Mode */
NULL, /* Send IMSI */
NULL, /* Trace Subscriber Activity */
NULL, /* Note Internal Handover */
NULL, /* Send Routing Info */
NULL, /* Provide Roaming Number */
NULL, /* Provide SIWFS Number */
NULL, /* SIWFS Signalling Modify */
NULL, /* Resume Call Handling */
NULL, /* Set Reporting State */
NULL, /* Status Report */
NULL, /* Remote User Free */
NULL, /* Prepare Group Call */
NULL, /* Send Group Call End Signalling */
NULL, /* Process Group Call Signalling */
NULL, /* Forward Group Call Signalling */
NULL, /* IST Alert */
NULL, /* IST Command */
NULL, /* Register SS */
NULL, /* Erase SS */
NULL, /* Activate SS */
NULL, /* Deactivate SS */
NULL, /* Interogate SS */
NULL, /* Process Unstructured SS Request */
NULL, /* Unstructured SS Request */
NULL, /* Unstructured SS Notify */
NULL, /* Register Password */
NULL, /* Get Password */
NULL, /* Register CC Entry */
NULL, /* Erase CC Entry */
NULL, /* Begin Subscriber Activity */
NULL, /* Process Unstructured SS Data */
NULL, /* SS Invocation Notification */
NULL, /* MO Forward SM */
NULL, /* MT Forward SM */
NULL, /* Send Routing Info For SM */
NULL, /* Report SM Delivery Status */
NULL, /* Inform Service Center */
NULL, /* Alert Service Center */
NULL, /* Ready For SM */
NULL, /* Note Subscriber Present */
NULL, /* Alert SC Without Result */
NULL, /* Insert Subscriber Data */
NULL, /* Delete Subscriber Data */
NULL, /* Provide Subscriber Info */
NULL, /* Any Time Interrogation */
NULL, /* Send Parameters */
NULL, /* Any Time Subscription Interrogation */
NULL, /* Any Time Modification */
NULL, /* Note Subscriber Data Modified */
NULL, /* Send Routing Info For GPRS */
NULL, /* Failure Report */
NULL, /* Note MS Present For GPRS */
NULL, /* Provide Subscriber Location */
NULL, /* Send Routing Info For LCS */
NULL, /* Subscriber Location Report */
NULL, /* NONE */
};
/* GENERIC MAP DISSECTOR FUNCTIONS */
static int
dissect_map_tag(ASN1_SCK *asn1, proto_tree *tree, guint *tag, guchar * str,
proto_item **item_p)
{
guint saved_offset, real_tag;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &real_tag);
if ((*tag != (guint) -1) && (real_tag != *tag))
{
asn1->offset = saved_offset;
return(MAP_FAIL);
}
*item_p =
proto_tree_add_uint_format(tree, hf_map_tag, asn1->tvb,
saved_offset, asn1->offset - saved_offset,
real_tag, str);
return(MAP_OK);
}
static int
dissect_map_len(ASN1_SCK *asn1, proto_tree *tree, gboolean *def_len, guint *len)
{
guint saved_offset;
saved_offset = asn1->offset;
*len = 0;
*def_len = FALSE;
asn1_length_decode(asn1, def_len, len);
if (*def_len)
{
proto_tree_add_uint(tree, hf_map_length, asn1->tvb, saved_offset,
asn1->offset - saved_offset, *len);
}
else
{
proto_tree_add_text(tree, asn1->tvb,
saved_offset, asn1->offset - saved_offset, "Length: Indefinite");
}
return(MAP_OK);
}
static int
dissect_map_integer(ASN1_SCK *asn1, proto_tree *tree, guint len, guchar * str)
{
guint saved_offset;
gint32 invokeId;
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, len, &invokeId);
proto_tree_add_int_format(tree, hf_map_int, asn1->tvb,
saved_offset, asn1->offset - saved_offset,
invokeId, "%s %d", str, invokeId);
return(MAP_OK);
}
static int
dissect_map_invokeId(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset = 0;
guint len;
guint tag;
proto_item *item, *null_item;
proto_tree *subtree;
gboolean def_len;
if (check_map_tag(asn1, MAP_INVOKE_ID_TAG))
{
saved_offset = asn1->offset;
item =
proto_tree_add_text(tree, asn1->tvb,
saved_offset, -1, "Invoke Id");
subtree = proto_item_add_subtree(item, ett_component);
tag = -1;
dissect_map_tag(asn1, subtree, &tag, "Invoke Id Tag", &null_item);
dissect_map_len(asn1, subtree, &def_len, &len);
dissect_map_integer(asn1, subtree, len, "Invoke Id:");
proto_item_set_len(item, asn1->offset - saved_offset);
}
return(MAP_OK);
}
static void
dissect_map_problem(ASN1_SCK *asn1, proto_tree *tree)
{
guint orig_offset, saved_offset = 0;
guint len, tag_len;
guint tag;
proto_tree *subtree;
proto_item *item = NULL;
gchar *str = NULL;
gchar *type_str = NULL;
gint32 spec;
gboolean def_len;
orig_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
tag_len = asn1->offset - saved_offset;
item =
proto_tree_add_text(tree, asn1->tvb,
saved_offset, -1, "Problem Code");
subtree = proto_item_add_subtree(item, ett_problem);
dissect_map_len(asn1, subtree, &def_len, &len);
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
if (len != 1)
{
proto_tree_add_text(subtree, asn1->tvb,
asn1->offset, len, "Unknown encoding of Problem Code");
asn1->offset += len;
return;
}
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, 1, &spec);
switch (tag)
{
case MAP_GE_PROBLEM_TAG:
type_str = "General Problem";
switch (spec)
{
case 0: str = "Unrecognized Component"; break;
case 1: str = "Mistyped Component"; break;
case 2: str = "Badly Structured Component"; break;
default:
str = "Undefined";
break;
}
break;
case MAP_IN_PROBLEM_TAG:
type_str = "Invoke";
switch (spec)
{
case 0: str = "Duplicate Invoke ID"; break;
case 1: str = "Unrecognized Operation"; break;
case 2: str = "Mistyped Parameter"; break;
case 3: str = "Resource Limitation"; break;
case 4: str = "Initiating Release"; break;
case 5: str = "Unrecognized Linked ID"; break;
case 6: str = "Linked Response Unexpected"; break;
case 7: str = "Unexpected Linked Operation"; break;
default:
str = "Undefined";
break;
}
break;
case MAP_RR_PROBLEM_TAG:
type_str = "Return Result";
switch (spec)
{
case 0: str = "Unrecognized Invoke ID"; break;
case 1: str = "Return Result Unexpected"; break;
case 2: str = "Mistyped Parameter"; break;
default:
str = "Undefined";
break;
}
break;
case MAP_RE_PROBLEM_TAG:
type_str = "Return Error";
switch (spec)
{
case 0: str = "Unrecognized Invoke ID"; break;
case 1: str = "Return Error Unexpected"; break;
case 2: str = "Unrecognized Error"; break;
case 3: str = "Unexpected Error"; break;
case 4: str = "Mistyped Parameter"; break;
default:
str = "Undefined";
break;
}
break;
default:
type_str = "Undefined";
break;
}
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb,
orig_offset, tag_len, tag, type_str);
proto_tree_add_text(subtree, asn1->tvb,
saved_offset, 1, "Problem Specifier %s", str);
}
static int
dissect_map_lnkId(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset = 0;
guint len;
guint tag;
proto_item *item, *null_item;
proto_tree *subtree;
gboolean def_len;
if (check_map_tag(asn1, MAP_LINK_ID_TAG))
{
saved_offset = asn1->offset;
item =
proto_tree_add_text(tree, asn1->tvb,
saved_offset, -1, "Linked Id");
subtree = proto_item_add_subtree(item, ett_component);
tag = -1;
dissect_map_tag(asn1, tree, &tag, "Linked Id Tag", &null_item);
dissect_map_len(asn1, tree, &def_len, &len);
dissect_map_integer(asn1, tree, len, "Linked Id:");
proto_item_set_len(item, asn1->offset - saved_offset);
}
return(MAP_OK);
}
static int
dissect_map_opr_code(ASN1_SCK *asn1, packet_info *pinfo, proto_tree *tree, gint *op_idx_p)
{
guint saved_offset = 0;
guint len;
guint tag;
gint32 val;
gchar *str = NULL;
proto_item *item;
proto_tree *subtree;
gboolean def_len;
if (check_map_tag(asn1, MAP_OPR_CODE_TAG))
{
tag = -1;
dissect_map_tag(asn1, tree, &tag, "Operation Code", &item);
subtree = proto_item_add_subtree(item, ett_opr_code);
dissect_map_len(asn1, subtree, &def_len, &len);
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, len, &val);
proto_tree_add_int(subtree, hf_map_opr_code, asn1->tvb, saved_offset,
asn1->offset - saved_offset, val);
str = my_match_strval(val, opr_code_strings, op_idx_p);
if (NULL == str) return(MAP_FAIL);
if (check_col(pinfo->cinfo, COL_INFO))
{
col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", str);
}
}
return(MAP_OK);
}
static int
dissect_map_params(ASN1_SCK *asn1, proto_tree *tree)
{
guint off_tree[100], saved_offset, len_offset;
int num_seq;
guint tag, len;
gboolean def_len = FALSE;
proto_item *item_tree[100], *item;
proto_tree *seq_tree[100], *use_tree, *subtree;
num_seq = 0;
use_tree = tree;
while ((tvb_length_remaining(asn1->tvb, asn1->offset) > 0) &&
(!check_map_tag(asn1, 0)))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
len_offset = asn1->offset;
asn1_length_decode(asn1, &def_len, &len);
if (tag == MAP_SEQ_TAG)
{
item =
proto_tree_add_text(use_tree, asn1->tvb,
saved_offset, -1, "Sequence");
subtree = proto_item_add_subtree(item, ett_params);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb,
saved_offset, len_offset - saved_offset, tag, "Sequence Tag");
if (!def_len)
{
proto_tree_add_text(subtree, asn1->tvb,
len_offset, asn1->offset - len_offset, "Length: Indefinite");
seq_tree[num_seq] = subtree;
item_tree[num_seq] = item;
off_tree[num_seq] = saved_offset;
num_seq++;
}
else
{
proto_tree_add_uint(subtree, hf_map_length, asn1->tvb,
len_offset, asn1->offset - len_offset, len);
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
}
use_tree = subtree;
continue;
}
if (!def_len)
{
proto_tree_add_uint_format(use_tree, hf_map_tag, asn1->tvb,
saved_offset, len_offset - saved_offset, tag, "Parameter Tag");
proto_tree_add_text(use_tree, asn1->tvb,
len_offset, asn1->offset - len_offset, "Length: Indefinite");
seq_tree[num_seq] = use_tree;
item_tree[num_seq] = NULL;
num_seq++;
continue;
}
else
{
item =
proto_tree_add_text(use_tree, asn1->tvb,
saved_offset, -1, "Parameter");
subtree = proto_item_add_subtree(item, ett_param);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb,
saved_offset, len_offset - saved_offset, tag, "Parameter Tag");
proto_tree_add_uint(subtree, hf_map_length, asn1->tvb,
len_offset, asn1->offset - len_offset, len);
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
proto_tree_add_text(subtree, asn1->tvb,
asn1->offset, len, "Parameter Data");
asn1->offset += len;
}
if (tvb_length_remaining(asn1->tvb, asn1->offset) <=0) break;
while ((num_seq > 0) &&
asn1_eoc(asn1, -1))
{
saved_offset = asn1->offset;
asn1_eoc_decode(asn1, -1);
proto_tree_add_text(seq_tree[num_seq-1], asn1->tvb,
saved_offset, asn1->offset - saved_offset, "End of Contents");
if (item_tree[num_seq-1] != NULL)
{
proto_item_set_len(item_tree[num_seq-1], asn1->offset - off_tree[num_seq-1]);
}
num_seq--;
}
}
return(MAP_OK);
}
static int
dissect_map_eoc(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset;
saved_offset = asn1->offset;
if (tvb_length_remaining(asn1->tvb, saved_offset) <= 0)
{
return(MAP_FAIL);
}
if (!asn1_eoc(asn1, -1))
{
return(MAP_FAIL);
}
asn1_eoc_decode(asn1, -1);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, asn1->offset - saved_offset, "End of Contents");
return(MAP_OK);
}
static void
dissect_map_invoke(ASN1_SCK *asn1, packet_info *pinfo, proto_tree *tree)
{
proto_tree *subtree;
guint saved_offset = 0;
guint len;
guint tag;
proto_item *item;
gint op_idx;
gboolean def_len;
int ret;
saved_offset = asn1->offset;
ret = asn1_id_decode1(asn1, &tag);
item = proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Components");
subtree = proto_item_add_subtree(item, ett_components);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb, saved_offset, asn1->offset - saved_offset,
tag, "Invoke Type Tag");
dissect_map_len(asn1, subtree, &def_len, &len);
if (def_len)
{
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
}
dissect_map_invokeId(asn1, subtree);
dissect_map_lnkId(asn1, subtree);
gsm_map_is_invoke = TRUE;
if (dissect_map_opr_code(asn1, pinfo, subtree, &op_idx) == MAP_OK)
{
/*
* decode elements
*/
if (op_fcn[op_idx] == NULL)
{
dissect_map_params(asn1, subtree);
}
else
{
(*op_fcn[op_idx])(asn1, subtree);
}
}
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
dissect_map_rr(ASN1_SCK *asn1, packet_info *pinfo, proto_tree *tree, gchar *str)
{
guint tag, len, comp_len;
gint op_idx;
guint saved_offset;
proto_item *item, *null_item;
proto_tree *subtree;
gboolean def_len;
gboolean comp_def_len;
tag = -1;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
item = proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Components");
subtree = proto_item_add_subtree(item, ett_components);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb,
saved_offset, asn1->offset - saved_offset, tag, str);
dissect_map_len(asn1, subtree, &comp_def_len, &comp_len);
if (comp_def_len)
{
proto_item_set_len(item, (asn1->offset - saved_offset) + comp_len);
}
dissect_map_invokeId(asn1, subtree);
if (check_map_tag(asn1, MAP_SEQ_TAG))
{
tag = -1;
dissect_map_tag(asn1, subtree, &tag, "Sequence Tag", &null_item);
dissect_map_len(asn1, subtree, &def_len, &len);
}
if (dissect_map_opr_code(asn1, pinfo, subtree, &op_idx) == MAP_OK)
{
dissect_map_params(asn1, subtree);
}
if (!comp_def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static int
dissect_map_re(ASN1_SCK *asn1, proto_tree *tree)
{
guint tag, len, comp_len;
guint saved_offset;
proto_item *item, *null_item;
proto_tree *subtree;
gboolean def_len;
tag = -1;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
item = proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Components");
subtree = proto_item_add_subtree(item, ett_components);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb, saved_offset, asn1->offset - saved_offset,
tag, "Return Error Type Tag");
dissect_map_len(asn1, subtree, &def_len, &comp_len);
if (def_len)
{
proto_item_set_len(item, (asn1->offset - saved_offset) + comp_len);
}
saved_offset = asn1->offset;
dissect_map_invokeId(asn1, subtree);
#define MAP_LOCAL_ERR_CODE_TAG 0x2
#define MAP_GBL_ERR_CODE_TAG 0x6
if (check_map_tag(asn1, MAP_LOCAL_ERR_CODE_TAG))
{
tag = -1;
dissect_map_tag(asn1, subtree, &tag, "Local Error Code Tag", &null_item);
}
else if (check_map_tag(asn1, MAP_GBL_ERR_CODE_TAG))
{
tag = -1;
dissect_map_tag(asn1, subtree, &tag, "Global Error Code Tag", &null_item);
}
else
{
proto_tree_add_text(subtree, asn1->tvb, asn1->offset, comp_len,
"Unknown Error Code");
asn1->offset += (comp_len - (asn1->offset - saved_offset));
return(MAP_OK);
}
dissect_map_len(asn1, subtree, &def_len, &len);
dissect_map_integer(asn1, subtree, len, "Error Code:");
dissect_map_params(asn1, subtree);
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
return(MAP_OK);
}
static void
dissect_map_reject(ASN1_SCK *asn1, proto_tree *tree)
{
guint tag, len;
guint saved_offset;
proto_item *item;
proto_tree *subtree;
gboolean def_len;
tag = -1;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
item = proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Components");
subtree = proto_item_add_subtree(item, ett_components);
proto_tree_add_uint_format(subtree, hf_map_tag, asn1->tvb, saved_offset, asn1->offset - saved_offset,
tag, "Reject Type Tag");
dissect_map_len(asn1, subtree, &def_len, &len);
if (def_len)
{
proto_item_set_len(item, (asn1->offset - saved_offset) + len);
}
dissect_map_invokeId(asn1, subtree);
dissect_map_problem(asn1, subtree);
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
dissect_map_message(packet_info *pinfo, proto_tree *map_tree, ASN1_SCK *asn1)
{
guint tag;
guint saved_offset;
gchar *str = NULL;
static int i = 0;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
asn1->offset = saved_offset;
str = match_strval(tag, tag_strings);
if (NULL == str) return;
if (check_col(pinfo->cinfo, COL_INFO))
{
if (0 == i)
{
col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", str);
}
else
{
col_append_fstr(pinfo->cinfo, COL_INFO, "& %s ", str);
}
}
switch(tag)
{
case MAP_TC_INVOKE :
dissect_map_invoke(asn1, pinfo, map_tree);
break;
case MAP_TC_RRL :
dissect_map_rr(asn1, pinfo, map_tree, "Return Result(Last) Type Tag");
break;
case MAP_TC_RE :
dissect_map_re(asn1, map_tree);
break;
case MAP_TC_REJECT :
dissect_map_reject(asn1, map_tree);
break;
case MAP_TC_RRN :
dissect_map_rr(asn1, pinfo, map_tree, "Return Result(Not Last) Type Tag");
break;
default:
proto_tree_add_text(map_tree, asn1->tvb, saved_offset, -1,
"Message type not handled, ignoring");
break;
}
}
static void
dissect_map(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ti;
proto_tree *map_tree;
ASN1_SCK asn1;
int offset = 0;
if (!proto_is_protocol_enabled(proto_map))
{
call_dissector(data_handle,tvb, pinfo, tree);
return;
}
/*
* Make entries in Protocol column on summary display
*/
if (check_col(pinfo->cinfo, COL_PROTOCOL))
{
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GSM MAP");
}
/* In the interest of speed, if "tree" is NULL, don't do any work not
* necessary to generate protocol tree items.
*/
if (tree)
{
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_map, tvb, 0, -1, FALSE);
map_tree = proto_item_add_subtree(ti, ett_map);
asn1_open(&asn1, tvb, offset);
gsm_map_is_invoke = FALSE;
dissect_map_message(pinfo, map_tree, &asn1);
asn1_close(&asn1, &offset);
}
}
/* Register the protocol with Ethereal */
void
proto_register_map(void)
{
guint i;
gint last_offset;
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf[] =
{
{ &hf_map_tag,
{ "Tag", "map.msgtype",
FT_UINT8, BASE_HEX, NULL, 0,
"", HFILL }
},
{ &hf_map_length,
{ "Length", "map.len",
FT_UINT8, BASE_HEX, NULL, 0,
"", HFILL }
},
{ &hf_map_opr_code,
{ "Operation Code", "map.oprcode",
FT_INT32, BASE_DEC, VALS(opr_code_strings), 0,
"", HFILL }
},
{ &hf_map_int,
{ "Integer Data", "map.data",
FT_INT32, BASE_DEC, 0, 0,
"", HFILL }
},
};
/* Setup protocol subtree array */
#define NUM_INDIVIDUAL_PARAMS 7
static gint *ett[NUM_INDIVIDUAL_PARAMS+GSM_MAP_NUM_OP+NUM_PARAM_1];
memset((void *) ett, 0, sizeof(ett));
ett[0] = &ett_map;
ett[1] = &ett_opr_code;
ett[2] = &ett_component;
ett[3] = &ett_components;
ett[4] = &ett_param;
ett[5] = &ett_params;
ett[6] = &ett_problem;
last_offset = NUM_INDIVIDUAL_PARAMS;
for (i=0; i < GSM_MAP_NUM_OP; i++, last_offset++)
{
ett_op[i] = -1;
ett[last_offset] = &ett_op[i];
}
for (i=0; i < NUM_PARAM_1; i++, last_offset++)
{
ett_param_1[i] = -1;
ett[last_offset] = &ett_param_1[i];
}
/* Register the protocol name and description */
proto_map =
proto_register_protocol("GSM Mobile Application Part",
"GSM MAP", "gsm_map");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_map, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_map(void)
{
dissector_handle_t map_handle;
map_handle = create_dissector_handle(dissect_map, proto_map);
dissector_add("tcap.itu_ssn", 6, map_handle);
dissector_add("tcap.itu_ssn", 7, map_handle);
dissector_add("tcap.itu_ssn", 8, map_handle);
dissector_add("tcap.itu_ssn", 9, map_handle);
data_handle = find_dissector("data");
}
Attachment:
AUTHORS.diff
Description: Binary data
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