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wireshark/packet-gsm_map.c

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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: packet-gsm_map.c,v 1.9 2004/03/19 07:54:57 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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 "tap.h"
#include "asn1.h"
#include "packet-tcap.h"
#include "packet-gsm_ss.h"
#include "packet-gsm_map.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 /* Interrogate 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 /* Mobile Originated Forward Short Message */
#define MAP_MT_FWD_SM 44 /* Mobile Terminated Forward Short Message */
#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 /* Ready for Short Message */
#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_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
const value_string gsm_map_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, "Interrogate 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}
};
/*
* Initialize the protocol and registered fields
*/
static int proto_map = -1;
static int gsm_map_tap = -1;
static dissector_table_t sms_dissector_table; /* SMS TPDU */
static int gsm_map_app_context = 1; /* XXX should be set from Dialogue */
static packet_info *g_pinfo;
static proto_tree *g_tree;
static guint g_opr_code;
static guint g_comp_type_tag;
static int hf_map_length = -1;
static int hf_map_opr_code = -1;
static int hf_map_int = -1;
static int hf_map_imsi = -1;
static int hf_map_addrstring = -1;
static int hf_map_rand = -1;
static int hf_map_sres = -1;
static int hf_map_kc = -1;
static int hf_map_xres = -1;
static int hf_map_ck = -1;
static int hf_map_ik = -1;
static int hf_map_autn = -1;
/* never initialize in field array */
static int hf_null = -1;
#define HF_NULL &hf_null
/* Initialize the subtree pointers */
static gint ett_map = -1;
static gint ett_component = -1;
static gint ett_components = -1;
static gint ett_sequence = -1;
static gint ett_param = -1;
static gint ett_params = -1;
static gint ett_problem = -1;
static gint ett_opr_code = -1;
typedef struct dgt_set_t
{
unsigned char out[15];
}
dgt_set_t;
#ifdef MLUM
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','*','#'
}
};
#endif
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','?','?','?','?','?'
}
};
/* FORWARD DECLARATIONS */
static int dissect_map_eoc(ASN1_SCK *asn1, proto_tree *tree);
/* 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);
}
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);
}
#define GSM_MAP_START_SUBTREE(_Gtree, _Gsaved_offset, _Gtag, _Gstr1, _Gett, _Gdef_len_p, _Glen_p, _Gsubtree_p) \
{ \
guint _len_offset; \
proto_item *_item; \
\
_len_offset = asn1->offset; \
asn1_length_decode(asn1, _Gdef_len_p, _Glen_p); \
\
_item = \
proto_tree_add_text(_Gtree, asn1->tvb, _Gsaved_offset, -1, _Gstr1); \
\
_Gsubtree_p = proto_item_add_subtree(_item, _Gett); \
\
proto_tree_add_text(_Gsubtree_p, asn1->tvb, \
_Gsaved_offset, _len_offset - _Gsaved_offset, "Tag: 0x%02x", _Gtag); \
\
if (*_Gdef_len_p) \
{ \
proto_tree_add_uint(_Gsubtree_p, hf_map_length, asn1->tvb, \
_len_offset, asn1->offset - _len_offset, *_Glen_p); \
} \
else \
{ \
proto_tree_add_text(_Gsubtree_p, asn1->tvb, \
_len_offset, asn1->offset - _len_offset, "Length: Indefinite"); \
\
*_Glen_p = tcap_find_eoc(asn1); \
} \
\
proto_item_set_len(_item, (asn1->offset - _Gsaved_offset) + *_Glen_p + \
(*_Gdef_len_p ? 0 : TCAP_EOC_LEN)); \
}
static int
dissect_map_params(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint orig_offset, saved_offset, len_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_item *item;
proto_tree *subtree;
orig_offset = asn1->offset;
while ((tvb_length_remaining(asn1->tvb, asn1->offset) > 0) &&
(!check_map_tag(asn1, 0)))
{
if ((exp_len != 0) &&
((asn1->offset - orig_offset) >= exp_len))
{
break;
}
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag))
{
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
dissect_map_params(asn1, subtree, len);
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
continue;
}
len_offset = asn1->offset;
asn1_length_decode(asn1, &def_len, &len);
if (!def_len)
{
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len_offset - saved_offset,
"Tag: 0x%02x", tag);
proto_tree_add_text(tree, asn1->tvb,
len_offset, asn1->offset - len_offset, "Length: Indefinite");
len = tcap_find_eoc(asn1);
dissect_map_params(asn1, tree, len);
dissect_map_eoc(asn1, tree);
continue;
}
item =
proto_tree_add_text(tree, asn1->tvb,
saved_offset, (asn1->offset - saved_offset) + len, "Parameter");
subtree = proto_item_add_subtree(item, ett_param);
proto_tree_add_text(subtree, asn1->tvb,
saved_offset, len_offset - saved_offset,
"Tag: 0x%02x", tag);
proto_tree_add_uint(subtree, hf_map_length, asn1->tvb,
len_offset, asn1->offset - len_offset, len);
if (len > 0)
{
proto_tree_add_text(subtree, asn1->tvb,
asn1->offset, len, "Parameter Data");
asn1->offset += len;
}
}
return(MAP_OK);
}
/* PARAMETERS */
static void
param_bytes(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
{
guint saved_offset;
saved_offset = asn1->offset;
proto_tree_add_bytes(tree, hf_field, asn1->tvb,
saved_offset, len, tvb_get_ptr(asn1->tvb, saved_offset, len));
asn1->offset += len;
}
static void
param_imsi(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
{
guint saved_offset;
guchar *poctets;
char bigbuf[1024];
saved_offset = asn1->offset;
asn1_string_value_decode(asn1, len, &poctets);
my_dgt_tbcd_unpack(bigbuf, poctets, len, &Dgt_msid);
g_free(poctets);
if (hf_field == -1)
{
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len, "IMSI %s", bigbuf);
}
else
{
proto_tree_add_string_format(tree, hf_field, asn1->tvb,
saved_offset, len, bigbuf, "IMSI %s", bigbuf);
}
}
static void
param_lmsi(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
{
guint saved_offset;
gint32 value;
hf_field = hf_field;
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, len, &value);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len, "LMSI 0x%04x", value);
}
static void
param_boolean(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
{
guint saved_offset;
gint32 value;
hf_field = hf_field;
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, len, &value);
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len, value ? "TRUE" : "FALSE");
}
static void
param_alertReason(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
{
guint saved_offset;
gint32 value;
gchar *str = NULL;
hf_field = hf_field;
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, len, &value);
switch (value)
{
case 0x00:
str = "ms-Present";
break;
case 0x01:
str = "memoryAvailable";
break;
default:
str = "Unrecognized value";
break;
}
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len, str);
}
static void
param_AddressString(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
{
guint saved_offset;
gint32 value;
guchar *poctets;
gchar *str = NULL;
char bigbuf[1024];
saved_offset = asn1->offset;
asn1_int32_value_decode(asn1, 1, &value);
other_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;
}
other_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;
}
other_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);
g_free(poctets);
if (hf_field == -1)
{
proto_tree_add_text(tree, asn1->tvb,
saved_offset, len - 1, "BCD Digits %s", bigbuf);
}
else
{
proto_tree_add_string_format(tree, hf_field, asn1->tvb,
saved_offset, len - 1, bigbuf, "BCD Digits %s", bigbuf);
}
}
typedef enum
{
GSM_MAP_P_IMSI, /* IMSI */
GSM_MAP_P_LMSI, /* LMSI */
GSM_MAP_P_MSISDN, /* MSISDN */
GSM_MAP_P_SC_ADDR_DA, /* Service Centre Address DA */
GSM_MAP_P_SC_ADDR_OA, /* Service Centre Address OA */
GSM_MAP_P_SC_ADDR, /* Service Centre Address */
GSM_MAP_P_MSC_NUMBER, /* MSC Number */
GSM_MAP_P_VLR_NUMBER, /* VLR Number */
GSM_MAP_P_HLR_NUMBER, /* HLR Number */
GSM_MAP_P_SIG_INFO, /* Signal Info */
GSM_MAP_P_BOOL, /* Boolean */
GSM_MAP_P_LIWLMSI, /* Location Information with LMSI */
GSM_MAP_P_NETNODE_NUM, /* Network Node Number */
GSM_MAP_P_ROAMING_NUM, /* Roaming Number */
GSM_MAP_P_ALERT_REASON, /* Alert Reason */
GSM_MAP_P_GMSC_ADDR, /* GMSC Address */
GSM_MAP_P_RAND, /* Rand */
GSM_MAP_P_SRES, /* Signed Result */
GSM_MAP_P_KC, /* Key Cipher */
GSM_MAP_P_XRES, /* Extended Signed Result */
GSM_MAP_P_CK, /* Ciphering Key */
GSM_MAP_P_IK, /* Integrity Key */
GSM_MAP_P_AUTN, /* Authentication Token */
GSM_MAP_P_NONE /* NONE */
}
param_idx_t;
#define NUM_PARAM_1 (GSM_MAP_P_NONE+1)
static gint ett_param_1[NUM_PARAM_1];
static void (*param_1_fcn[])(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field) = {
param_imsi, /* IMSI */
param_lmsi, /* LMSI */
param_AddressString, /* MSISDN */
param_AddressString, /* Service Centre Address DA */
param_AddressString, /* Service Centre Address OA */
param_AddressString, /* Service Centre Address */
param_AddressString, /* MSC Number */
param_AddressString, /* VLR Number */
param_AddressString, /* HLR Number */
NULL, /* Signal Info */
param_boolean, /* Boolean */
NULL, /* Location Information with LMSI */
param_AddressString, /* Network Node Number */
param_AddressString, /* Roaming Number */
param_alertReason, /* Alert Reason */
param_AddressString, /* GMSC Address */
param_bytes, /* Rand */
param_bytes, /* Signed Result */
param_bytes, /* GSM Key Cipher */
param_bytes, /* Extended Signed Result */
param_bytes, /* UMTS Ciphering Key */
param_bytes, /* Integrity Key */
param_bytes, /* Authentication Token */
NULL /* NONE */
};
static int *param_1_hf[] = {
&hf_map_imsi, /* IMSI */
HF_NULL, /* LMSI */
&hf_map_addrstring, /* MSISDN */
&hf_map_addrstring, /* Service Centre Address DA */
&hf_map_addrstring, /* Service Centre Address OA */
&hf_map_addrstring, /* Service Centre Address */
&hf_map_addrstring, /* MSC Number */
&hf_map_addrstring, /* VLR Number */
&hf_map_addrstring, /* HLR Number */
HF_NULL, /* Signal Info */
HF_NULL, /* Boolean */
HF_NULL, /* Location Information with LMSI */
&hf_map_addrstring, /* Network Node Number */
&hf_map_addrstring, /* Roaming Number */
HF_NULL, /* Alert Reason */
&hf_map_addrstring, /* GMSC Address */
&hf_map_rand, /* Rand */
&hf_map_sres, /* Signed Result */
&hf_map_kc, /* GSM Key Cipher */
&hf_map_xres, /* Extended Signed Result */
&hf_map_ck, /* UMTS Ciphering Key */
&hf_map_ik, /* Integrity Key */
&hf_map_autn, /* Authentication Token */
NULL /* NONE */
};
#define GSM_MAP_PARAM_DISPLAY(Gtree, Goffset, Gtag, Ga1, Ga2) \
{ \
gint _ett_param_idx; \
guint _len; \
void (*_param_fcn)(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field) = NULL; \
int *_param_hf = NULL; \
proto_tree *_subtree; \
gboolean _def_len; \
\
if (Ga1 == GSM_MAP_P_NONE) \
{ \
_ett_param_idx = ett_param; \
_param_fcn = NULL; \
_param_hf = HF_NULL; \
} \
else \
{ \
_ett_param_idx = ett_param_1[Ga1]; \
_param_fcn = param_1_fcn[Ga1]; \
_param_hf = param_1_hf[Ga1]; \
} \
\
GSM_MAP_START_SUBTREE(Gtree, Goffset, Gtag, Ga2, _ett_param_idx, &_def_len, &_len, _subtree); \
\
if (_len > 0) \
{ \
if (Ga1 == GSM_MAP_P_NONE || _param_fcn == NULL) \
{ \
proto_tree_add_text(_subtree, asn1->tvb, \
asn1->offset, _len, "Parameter Data"); \
\
asn1->offset += _len; \
} \
else \
{ \
(*_param_fcn)(asn1, _subtree, _len, *_param_hf); \
} \
} \
\
if (!_def_len) \
{ \
dissect_map_eoc(asn1, Gtree); \
} \
}
static void
param_Identity(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
switch (tag)
{
case 0x04: /* IMSI */
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_IMSI, "Identity");
break;
case 0x30: /* IMSI-WithLMSI */
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_LMSI, "LMSI");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
break;
default:
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_NONE, "Identity");
break;
}
}
static void
param_TripletList(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, orig_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
orig_offset = asn1->offset;
while ((tvb_length_remaining(asn1->tvb, asn1->offset) > 0) &&
(!check_map_tag(asn1, 0)))
{
if ((exp_len != 0) &&
((asn1->offset - orig_offset) >= exp_len))
{
break;
}
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_RAND, "RAND");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_SRES, "SRES");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_KC, "Kc");
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
}
static void
param_QuintupletList(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, orig_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
orig_offset = asn1->offset;
while ((tvb_length_remaining(asn1->tvb, asn1->offset) > 0) &&
(!check_map_tag(asn1, 0)))
{
if ((exp_len != 0) &&
((asn1->offset - orig_offset) >= exp_len))
{
break;
}
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_RAND, "RAND");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_XRES, "XRES");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_CK, "CK");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IK, "IK");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_AUTN, "AUTN");
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
}
static void
param_SM_RP_DA(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset;
guint tag;
gint idx;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
switch (tag)
{
case 0x80: /* IMSI */
idx = GSM_MAP_P_IMSI;
break;
case 0x81: /* LMSI */
idx = GSM_MAP_P_LMSI;
break;
case 0x84: /* AddressString */
idx = GSM_MAP_P_SC_ADDR_DA;
break;
default:
/*
* this occurs in the mobile terminated case for
* subsequent messages
*/
idx = GSM_MAP_P_NONE;
break;
}
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, idx, "SM-RP-DA");
}
static void
param_SM_RP_OA(ASN1_SCK *asn1, proto_tree *tree, int *direction_p)
{
guint saved_offset;
guint tag;
gint idx;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
switch (tag)
{
case 0x82: /* MSISDN */
idx = GSM_MAP_P_MSISDN;
*direction_p = P2P_DIR_RECV;
break;
case 0x84: /* AddressString */
idx = GSM_MAP_P_SC_ADDR_OA;
*direction_p = P2P_DIR_SENT;
break;
default:
idx = GSM_MAP_P_NONE;
/*
* this occurs in the mobile terminated case for
* subsequent messages
*/
*direction_p = P2P_DIR_SENT;
break;
}
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, idx, "SM-RP-OA");
}
static void
param_SM_RP_UI(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
tvbuff_t *tpdu_tvb;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "SM-RP-UI",
ett_param_1[GSM_MAP_P_SIG_INFO],
&def_len, &len, subtree);
proto_tree_add_text(subtree, asn1->tvb, asn1->offset, len, "TPDU");
/*
* dissect the embedded TPDU message
*/
tpdu_tvb = tvb_new_subset(asn1->tvb, asn1->offset, len, len);
dissector_try_port(sms_dissector_table, 0, tpdu_tvb, g_pinfo, g_tree);
asn1->offset += len;
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
param_LWI_LMSI(ASN1_SCK *asn1, proto_tree *tree)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "LOCATION INFO WITH LMSI",
ett_param_1[GSM_MAP_P_LIWLMSI],
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NETNODE_NUM, "NETWORK NODE NUMBER");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
/* MESSAGES */
static void
op_update_loc(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSC_NUMBER, "MSC Number");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_VLR_NUMBER, "VLR Number");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_update_loc_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_HLR_NUMBER, "HLR Number");
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_HLR_NUMBER, "HLR Number");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_cancel_loc(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (tag != 0xa3)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Constructor Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
param_Identity(asn1, subtree);
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_send_auth_info(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Number Of Requested Vectors");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_send_auth_info_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if ((tag != 0x30) &&
(tag != 0x31))
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag,
(tag == 0x30) ? "TripletList" : "QuintupletList",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
if (tag == 0x30)
{
param_TripletList(asn1, subtree, len);
}
else
{
param_QuintupletList(asn1, subtree, len);
}
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_restore_data(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_restore_data_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_HLR_NUMBER, "HLR Number");
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_HLR_NUMBER, "HLR Number");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_send_rti(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSISDN, "MSISDN");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_send_rti_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
if (check_map_tag(asn1, 0x89))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
}
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_provide_rn(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSC_NUMBER, "MSC Number");
if (check_map_tag(asn1, 0x82))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSISDN, "MSISDN");
}
if (check_map_tag(asn1, 0x84))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_LMSI, "LMSI");
}
if (check_map_tag(asn1, 0x85))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "GSM Bearer Capability");
}
if (check_map_tag(asn1, 0xa6))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Network Signal Info");
}
if (check_map_tag(asn1, 0x87))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Suppression Of Announcement");
}
if (check_map_tag(asn1, 0x88))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_GMSC_ADDR, "GMSC Address");
}
if (check_map_tag(asn1, 0x89))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Call Reference Number");
}
if (check_map_tag(asn1, 0x8a))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "OR Interrogation");
}
if (check_map_tag(asn1, 0x8b))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Extension Container");
}
if (check_map_tag(asn1, 0x8c))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Alerting Pattern");
}
if (check_map_tag(asn1, 0x8d))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "CCBS Call");
}
if (check_map_tag(asn1, 0x8f))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Supported Camel Phases In GMSC");
}
if (check_map_tag(asn1, 0x8e))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Additional Signal Info");
}
if (check_map_tag(asn1, 0x90))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "OR Not Supported In GMSC");
}
if (check_map_tag(asn1, 0x91))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Pre-paging Supported");
}
if (check_map_tag(asn1, 0x92))
{
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "Long FTN Supported");
}
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_provide_rn_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
GSM_MAP_PARAM_DISPLAY(tree, saved_offset, tag, GSM_MAP_P_ROAMING_NUM, "Roaming Number");
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_ROAMING_NUM, "Roaming Number");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
/*
* Description:
* Generic dissector for Supplementary Services
*/
static void
op_ss_generic(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
gsm_ss_dissect(asn1, tree, exp_len, g_opr_code, g_comp_type_tag);
}
static void
op_mo_forward_sm(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
param_SM_RP_DA(asn1, subtree);
param_SM_RP_OA(asn1, subtree, &g_pinfo->p2p_dir);
param_SM_RP_UI(asn1, subtree);
/*
* older versions of GSM MAP had only one ForwardSM message
*/
if ((tvb_length_remaining(asn1->tvb, asn1->offset) > (def_len ? 0 : TCAP_EOC_LEN)) &&
(gsm_map_app_context < 3) &&
(g_pinfo->p2p_dir == P2P_DIR_SENT))
{
/*
* 'more messages' for V1 context
*/
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "More Messages To Send");
}
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_mt_forward_sm(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
param_SM_RP_DA(asn1, subtree);
param_SM_RP_OA(asn1, subtree, &g_pinfo->p2p_dir);
param_SM_RP_UI(asn1, subtree);
if (tvb_length_remaining(asn1->tvb, asn1->offset) > 0)
{
/*
* 'more messages'
*/
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_NONE, "More Messages To Send");
}
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_forward_sm_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
param_SM_RP_UI(asn1, subtree);
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_send_rti_sm(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSISDN, "MSISDN");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_BOOL, "SM-RP-PRI");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_SC_ADDR, "Service Centre Address");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_send_rti_sm_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
param_LWI_LMSI(asn1, subtree);
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_alert_sc(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSISDN, "MSISDN");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_SC_ADDR, "Service Centre Address");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_ready_sm(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_IMSI, "IMSI");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_ALERT_REASON, "Alert Reason");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
static void
op_alert_sc_wr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
{
guint saved_offset, start_offset;
guint tag, len;
gboolean def_len = FALSE;
proto_tree *subtree;
exp_len = exp_len;
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag) == FALSE)
{
/*
* Hmmm, unexpected
*/
return;
}
GSM_MAP_START_SUBTREE(tree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, subtree);
start_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_MSISDN, "MSISDN");
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
GSM_MAP_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_MAP_P_SC_ADDR, "Service Centre Address");
dissect_map_params(asn1, subtree, len - (asn1->offset - start_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
}
#define GSM_MAP_NUM_OP (sizeof(gsm_map_opr_code_strings)/sizeof(value_string))
static gint ett_op[GSM_MAP_NUM_OP];
static void (*op_fcn[])(ASN1_SCK *asn1, proto_tree *tree, guint exp_len) = {
op_update_loc, /* Update Location */
op_cancel_loc, /* 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 */
op_restore_data, /* 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 */
op_send_rti, /* Send Routing Info */
op_provide_rn, /* 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 */
op_ss_generic, /* Register SS */
op_ss_generic, /* Erase SS */
op_ss_generic, /* Activate SS */
op_ss_generic, /* Deactivate SS */
op_ss_generic, /* Interrogate SS */
op_ss_generic, /* Process Unstructured SS Request */
op_ss_generic, /* Unstructured SS Request */
op_ss_generic, /* Unstructured SS Notify */
op_ss_generic, /* Register Password */
op_ss_generic, /* Get Password */
op_ss_generic, /* Register CC Entry */
op_ss_generic, /* Erase CC Entry */
NULL, /* Begin Subscriber Activity */
op_ss_generic, /* Process Unstructured SS Data */
op_ss_generic, /* SS Invocation Notification */
op_mo_forward_sm, /* MO Forward SM */
op_mt_forward_sm, /* MT Forward SM */
op_send_rti_sm, /* Send Routing Info For SM */
NULL, /* Report SM Delivery Status */
NULL, /* Inform Service Center */
op_alert_sc, /* Alert Service Center */
op_ready_sm, /* Ready For SM */
NULL, /* Note Subscriber Present */
op_alert_sc_wr, /* 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 */
};
static gint ett_op_rr[GSM_MAP_NUM_OP];
static void (*op_fcn_rr[])(ASN1_SCK *asn1, proto_tree *tree, guint exp_len) = {
op_update_loc_rr, /* 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_rr, /* Send Authentication Info */
NULL, /* Authentication Failure Report */
NULL, /* Check IMEI */
NULL, /* Reset */
op_restore_data_rr, /* 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 */
op_send_rti_rr, /* Send Routing Info */
op_provide_rn_rr, /* 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 */
op_ss_generic, /* Register SS */
op_ss_generic, /* Erase SS */
op_ss_generic, /* Activate SS */
op_ss_generic, /* Deactivate SS */
op_ss_generic, /* Interrogate SS */
op_ss_generic, /* Process Unstructured SS Request */
op_ss_generic, /* Unstructured SS Request */
op_ss_generic, /* Unstructured SS Notify */
op_ss_generic, /* Register Password */
op_ss_generic, /* Get Password */
op_ss_generic, /* Register CC Entry */
op_ss_generic, /* Erase CC Entry */
NULL, /* Begin Subscriber Activity */
op_ss_generic, /* Process Unstructured SS Data */
op_ss_generic, /* SS Invocation Notification */
op_forward_sm_rr, /* MO Forward SM */
op_forward_sm_rr, /* MT Forward SM */
op_send_rti_sm_rr, /* 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_text(tree, asn1->tvb,
saved_offset, asn1->offset - saved_offset,
"%s: 0x%02x", str, real_tag);
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, TCAP_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, len_offset;
guint 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);
len_offset = asn1->offset;
asn1_length_decode(asn1, &def_len, &len);
item =
proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Problem Code");
subtree = proto_item_add_subtree(item, ett_problem);
if (!def_len)
{
len = tcap_find_eoc(asn1);
}
proto_item_set_len(item, (asn1->offset - saved_offset) + len +
(def_len ? 0 : TCAP_EOC_LEN));
if (len != 1)
{
proto_tree_add_text(subtree, asn1->tvb,
asn1->offset, len, "Unknown encoding of Problem Code");
asn1->offset += len;
if (!def_len)
{
asn1_eoc_decode(asn1, -1);
}
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_text(subtree, asn1->tvb,
orig_offset, len_offset - orig_offset,
"%s: %02x", type_str, tag);
if (def_len)
{
proto_tree_add_uint(subtree, hf_map_length, asn1->tvb,
len_offset, saved_offset - len_offset, len);
}
else
{
proto_tree_add_text(subtree, asn1->tvb,
len_offset, saved_offset - len_offset, "Length: Indefinite");
}
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, TCAP_LINKED_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 *opr_code_p)
{
guint opr_offset = 0, saved_offset = 0;
guint len;
guint tag;
gint32 val;
gchar *str = NULL;
proto_item *item;
proto_tree *subtree;
gboolean def_len;
static gsm_map_tap_rec_t tap_rec[4];
static gsm_map_tap_rec_t *tap_p;
static int tap_current=0;
/*
* set tap record pointer
*/
tap_current++;
if (tap_current == 4)
{
tap_current = 0;
}
tap_p = &tap_rec[tap_current];
if (check_map_tag(asn1, MAP_OPR_CODE_TAG))
{
opr_offset = asn1->offset;
item =
proto_tree_add_text(tree, asn1->tvb, opr_offset, -1,
"Operation Code");
subtree = proto_item_add_subtree(item, ett_opr_code);
tag = -1;
asn1_id_decode1(asn1, &tag);
proto_tree_add_text(subtree, asn1->tvb,
opr_offset, asn1->offset - opr_offset,
"Operation Code Tag: 0x%02x", tag);
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);
proto_item_set_len(item, asn1->offset - opr_offset);
str = my_match_strval(val, gsm_map_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);
}
*opr_code_p = val;
tap_p->opr_code_idx = *op_idx_p;
tap_queue_packet(gsm_map_tap, pinfo, tap_p);
}
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 orig_offset, saved_offset;
guint len;
guint tag;
proto_item *item;
gint op_idx;
gboolean def_len;
int ret;
orig_offset = asn1->offset;
saved_offset = asn1->offset;
ret = asn1_id_decode1(asn1, &tag);
item =
proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Component");
subtree =
proto_item_add_subtree(item, ett_components);
proto_tree_add_text(subtree, asn1->tvb, saved_offset,
asn1->offset - saved_offset,
"Invoke Type Tag: 0x%02x", tag);
dissect_map_len(asn1, subtree, &def_len, &len);
saved_offset = asn1->offset;
dissect_map_invokeId(asn1, subtree);
dissect_map_lnkId(asn1, subtree);
if (dissect_map_opr_code(asn1, pinfo, subtree, &op_idx, &g_opr_code) == MAP_OK)
{
if (def_len)
{
len -= asn1->offset - saved_offset;
}
else
{
len = tcap_find_eoc(asn1);
}
/*
* decode elements
*/
if (op_fcn[op_idx] == NULL)
{
dissect_map_params(asn1, subtree, len);
}
else
{
(*op_fcn[op_idx])(asn1, subtree, len);
}
}
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
proto_item_set_len(item, asn1->offset - orig_offset);
}
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 orig_offset, saved_offset;
proto_item *item;
proto_tree *seq_subtree, *subtree;
gboolean def_len;
gboolean comp_def_len;
tag = -1;
orig_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
item =
proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Component");
subtree =
proto_item_add_subtree(item, ett_components);
proto_tree_add_text(subtree, asn1->tvb,
saved_offset, asn1->offset - saved_offset,
"%s: %02x", str, tag);
dissect_map_len(asn1, subtree, &comp_def_len, &comp_len);
saved_offset = asn1->offset;
dissect_map_invokeId(asn1, subtree);
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0)
{
proto_item_set_len(item, asn1->offset - orig_offset);
return;
}
saved_offset = asn1->offset;
tag = -1;
asn1_id_decode1(asn1, &tag);
if (TCAP_CONSTRUCTOR(tag))
{
GSM_MAP_START_SUBTREE(subtree, saved_offset, tag, "Sequence",
ett_sequence,
&def_len, &len, seq_subtree);
saved_offset = asn1->offset;
if (dissect_map_opr_code(asn1, pinfo, seq_subtree, &op_idx, &g_opr_code) == MAP_OK)
{
len -= asn1->offset - saved_offset;
/*
* decode elements
*/
if (op_fcn_rr[op_idx] == NULL)
{
dissect_map_params(asn1, seq_subtree, len);
}
else
{
(*op_fcn_rr[op_idx])(asn1, seq_subtree, len);
}
}
if (!def_len)
{
dissect_map_eoc(asn1, seq_subtree);
}
}
if (!comp_def_len)
{
dissect_map_eoc(asn1, subtree);
}
proto_item_set_len(item, asn1->offset - orig_offset);
}
static int
dissect_map_re(ASN1_SCK *asn1, proto_tree *tree)
{
guint tag, len, comp_len;
guint orig_offset, saved_offset;
proto_item *item, *null_item;
proto_tree *subtree;
gboolean comp_def_len, def_len;
tag = -1;
orig_offset = asn1->offset;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &tag);
item =
proto_tree_add_text(tree, asn1->tvb, saved_offset, -1, "Component");
subtree = proto_item_add_subtree(item, ett_components);
proto_tree_add_text(subtree, asn1->tvb, saved_offset, asn1->offset - saved_offset,
"Return Error Type Tag: 0x%02x", tag);
dissect_map_len(asn1, subtree, &comp_def_len, &comp_len);
if (!comp_def_len)
{
comp_len = tcap_find_eoc(asn1);
}
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;
if (!comp_def_len)
{
dissect_map_eoc(asn1, subtree);
}
proto_item_set_len(item, asn1->offset - orig_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, comp_len - (asn1->offset - saved_offset));
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
proto_item_set_len(item, asn1->offset - orig_offset);
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, "Component");
subtree = proto_item_add_subtree(item, ett_components);
proto_tree_add_text(subtree, asn1->tvb, saved_offset, asn1->offset - saved_offset,
"Reject Type Tag: 0x%02x", tag);
dissect_map_len(asn1, subtree, &def_len, &len);
dissect_map_invokeId(asn1, subtree);
dissect_map_problem(asn1, subtree);
if (!def_len)
{
dissect_map_eoc(asn1, subtree);
}
proto_item_set_len(item, asn1->offset - saved_offset);
}
static void
dissect_map_message(packet_info *pinfo, proto_tree *map_tree, ASN1_SCK *asn1)
{
guint saved_offset;
gchar *str = NULL;
static int i = 0;
saved_offset = asn1->offset;
asn1_id_decode1(asn1, &g_comp_type_tag);
asn1->offset = saved_offset;
str = match_strval(g_comp_type_tag, tcap_component_type_str);
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(g_comp_type_tag)
{
case TCAP_COMP_INVOKE :
dissect_map_invoke(asn1, pinfo, map_tree);
break;
case TCAP_COMP_RRL :
dissect_map_rr(asn1, pinfo, map_tree, "Return Result(Last) Type Tag");
break;
case TCAP_COMP_RE :
dissect_map_re(asn1, map_tree);
break;
case TCAP_COMP_REJECT :
dissect_map_reject(asn1, map_tree);
break;
case TCAP_COMP_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;
/*
* 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)
{
g_pinfo = pinfo;
g_tree = 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);
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_length,
{ "Length", "map.len",
FT_UINT8, BASE_HEX, NULL, 0,
"", HFILL }
},
{ &hf_map_opr_code,
{ "Operation Code", "map.oprcode",
FT_INT32, BASE_DEC, VALS(gsm_map_opr_code_strings), 0,
"", HFILL }
},
{ &hf_map_int,
{ "Integer Data", "map.data",
FT_INT32, BASE_DEC, 0, 0,
"", HFILL }
},
{ &hf_map_imsi,
{ "IMSI", "map.imsi",
FT_STRING, BASE_DEC, 0, 0,
"", HFILL }
},
{ &hf_map_addrstring,
{ "AddressString", "map.addrstring",
FT_STRING, BASE_DEC, 0, 0,
"", HFILL }
},
{ &hf_map_rand,
{ "RAND", "map.rand",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
},
{ &hf_map_sres,
{ "SRES", "map.sres",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
},
{ &hf_map_kc,
{ "Kc", "map.kc",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
},
{ &hf_map_xres,
{ "XRES", "map.xres",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
},
{ &hf_map_ck,
{ "CK", "map.ck",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
},
{ &hf_map_ik,
{ "IK", "map.ik",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
},
{ &hf_map_autn,
{ "AUTN", "map.autn",
FT_BYTES, BASE_HEX, 0, 0,
"", HFILL }
}
};
/* Setup protocol subtree array */
#define NUM_INDIVIDUAL_PARAMS 8
static gint *ett[NUM_INDIVIDUAL_PARAMS+(GSM_MAP_NUM_OP*2)+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_sequence;
ett[5] = &ett_param;
ett[6] = &ett_params;
ett[7] = &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 < GSM_MAP_NUM_OP; i++, last_offset++)
{
ett_op_rr[i] = -1;
ett[last_offset] = &ett_op_rr[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));
sms_dissector_table =
register_dissector_table("gsm_map.sms_tpdu", "GSM SMS TPDU",
FT_UINT8, BASE_DEC);
gsm_map_tap = register_tap("gsm_map");
}
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);
}
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