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From Alejandro Vaquero 

new dissector for the AudioCodes trunk trace protocol. 
This protocol is used to debug the trunk protocol in AudioCodes 
gateways. It currently supports ISDN PRI and CAS (MFCR2, WinkStart, 
etc...) trunk protocols. It also add these protocols in the "Voip Calls 
Graph..."

svn path=/trunk/; revision=14790
This commit is contained in:
Anders Broman 2005-06-27 06:21:51 +00:00
parent 8d5958785d
commit e37467eb29
5 changed files with 959 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
epan/dissectors/Makefile.common
View File

@ -53,6 +53,7 @@ DISSECTOR_SRC = \
packet-aarp.c \
packet-acap.c \
packet-acse.c \
packet-actrace.c \
packet-afp.c \
packet-afs.c \
packet-aim.c \
@ -608,6 +609,7 @@ DISSECTOR_SRC = \
# corresponding headers
DISSECTOR_INCLUDES = \
packet-acse.h \
packet-actrace.h \
packet-afp.h \
packet-afs-defs.h \
packet-afs-macros.h \

873
epan/dissectors/packet-actrace.c Normal file
View File

@ -0,0 +1,873 @@
/* packet-actrace.c
* Routines for AudioCodes Trunk traces packet disassembly
*
* Copyright (c) 2005 by Alejandro Vaquero <alejandro.vaquero@verso.com>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1999 Gerald Combs
*
* 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 <ctype.h>
#include <string.h>
#include <epan/packet.h>
#include <epan/proto.h>
#include <epan/prefs.h>
#include <epan/conversation.h>
#include <epan/tap.h>
#include "packet-actrace.h"
#define UDP_PORT_ACTRACE 2428
#define ACTRACE_CAS 1
#define ACTRACE_ISDN 2
void proto_reg_handoff_actrace(void);
/* Define the actrace proto */
static int proto_actrace = -1;
/* Define many headers for actrace */
/* ISDN headers */
static int hf_actrace_isdn_direction = -1;
static int hf_actrace_isdn_trunk = -1;
static int hf_actrace_isdn_length = -1;
/* CAS headers */
static int hf_actrace_cas_time = -1;
static int hf_actrace_cas_source = -1;
static int hf_actrace_cas_current_state = -1;
static int hf_actrace_cas_event = -1;
static int hf_actrace_cas_next_state = -1;
static int hf_actrace_cas_function = -1;
static int hf_actrace_cas_par0 = -1;
static int hf_actrace_cas_par1 = -1;
static int hf_actrace_cas_par2 = -1;
static int hf_actrace_cas_trunk = -1;
static int hf_actrace_cas_bchannel = -1;
static int hf_actrace_cas_connection_id = -1;
static dissector_handle_t lapd_handle;
#define ACTRACE_CAS_SOURCE_DSP 0
#define ACTRACE_CAS_SOURCE_USER 1
#define ACTRACE_CAS_SOURCE_TABLE 2
static const value_string actrace_cas_source_vals[] = {
{ACTRACE_CAS_SOURCE_DSP, "DSP"},
{ACTRACE_CAS_SOURCE_USER, "User"},
{ACTRACE_CAS_SOURCE_TABLE, "Table"},
{0, NULL }
};
static const value_string actrace_cas_source_vals_short[] = {
{ACTRACE_CAS_SOURCE_DSP, "D"},
{ACTRACE_CAS_SOURCE_USER, "U"},
{ACTRACE_CAS_SOURCE_TABLE, "T"},
{0, NULL }
};
#define ACTRACE_CAS_EV_11 17
#define ACTRACE_CAS_EV_10 18
#define ACTRACE_CAS_EV_01 19
#define ACTRACE_CAS_EV_00 20
#define ACTRACE_CAS_EV_DTMF 302
#define ACTRACE_CAS_EV_FIRST_DIGIT 63
static const value_string actrace_cas_event_ab_vals[] = {
{ACTRACE_CAS_EV_11, "11"},
{ACTRACE_CAS_EV_10, "10"},
{ACTRACE_CAS_EV_01, "01"},
{ACTRACE_CAS_EV_00, "00"}
};
static const value_string actrace_cas_mf_vals[] = {
{32, "1"},
{33, "2"},
{34, "3"},
{35, "4"},
{36, "5"},
{37, "6"},
{38, "7"},
{39, "8"},
{40, "9"},
{41, "0"},
{42, "A"},
{43, "B"},
{44, "C"},
{45, "*"},
{46, "#"}
};
static const value_string actrace_cas_event_vals[] = {
{0, "FUNCTION0"},
{1, "FUNCTION1"},
{2, "FUNCTION2"},
{3, "FUNCTION3"},
{4, "EV_PLACE_CALL"},
{5, "EV_TIMER_EXPIRED1"},
{6, "EV_TIMER_EXPIRED2"},
{7, "EV_TIMER_EXPIRED3"},
{8, "EV_TIMER_EXPIRED4"},
{9, "EV_TIMER_EXPIRED5"},
{10, "EV_TIMER_EXPIRED6"},
{11, "EV_TIMER_EXPIRED7"},
{12, "EV_TIMER_EXPIRED8"},
{13, "EV_ANSWER"},
{14, "EV_DIAL_TONE_DETECTED"},
{15, "EV_DIAL_ENDED"},
{16, "EV_DISCONNECT"},
{ACTRACE_CAS_EV_11, "EV_CAS_1_1"},
{ACTRACE_CAS_EV_10, "EV_CAS_1_0"},
{ACTRACE_CAS_EV_01, "EV_CAS_0_1"},
{ACTRACE_CAS_EV_00, "EV_CAS_0_0"},
{21, "EV_RB_TONE_STARTED"},
{22, "EV_RB_TONE_STOPPED"},
{23, "EV_BUSY_TONE"},
{24, "EV_FAST_BUSY_TONE"},
{25, "EV_HELLO_DETECTED"},
{26, "EV_DIAL_TONE_STOPPED"},
{27, "EV_DISCONNECT_INCOMING"},
{28, "EV_RELEASE_CALL"},
{29, "EV_DIALED_NUM_DETECTED"},
{30, "EV_COUNTER1_EXPIRED"},
{31, "EV_COUNTER2_EXPIRED"},
{32, "EV_MFRn_1"},
{33, "EV_MFRn_2"},
{34, "EV_MFRn_3"},
{35, "EV_MFRn_4"},
{36, "EV_MFRn_5"},
{37, "EV_MFRn_6"},
{38, "EV_MFRn_7"},
{39, "EV_MFRn_8"},
{40, "EV_MFRn_9"},
{41, "EV_MFRn_10"},
{42, "EV_MFRn_11"},
{43, "EV_MFRn_12"},
{44, "EV_MFRn_13"},
{45, "EV_MFRn_14"},
{46, "EV_MFRn_15"},
{47, "EV_MFRn_1_STOPED"},
{48, "EV_MFRn_2_STOPED"},
{49, "EV_MFRn_3_STOPED"},
{50, "EV_MFRn_4_STOPED"},
{51, "EV_MFRn_5_STOPED"},
{52, "EV_MFRn_6_STOPED"},
{53, "EV_MFRn_7_STOPED"},
{54, "EV_MFRn_8_STOPED"},
{55, "EV_MFRn_9_STOPED"},
{56, "EV_MFRn_10_STOPED"},
{57, "EV_MFRn_11_STOPED"},
{58, "EV_MFRn_12_STOPED"},
{59, "EV_MFRn_13_STOPED"},
{60, "EV_MFRn_14_STOPED"},
{61, "EV_MFRn_15_STOPED"},
{62, "EV_ANI_NUM_DETECTED"},
{ACTRACE_CAS_EV_FIRST_DIGIT, "EV_FIRST_DIGIT"},
{64, "EV_END_OF_MF_DIGIT"},
{65, "EV_ACCEPT"},
{66, "EV_REJECT_BUSY"},
{67, "EV_REJECT_CONGESTION"},
{68, "EV_REJECT_UNALLOCATED"},
{69, "EV_REJECT_RESERVE1"},
{70, "EV_REJECT_RESERVE2"},
{71, "EV_NO_ANI"},
{1010, "EV_TIMER_EXPIRED10"},
{1020, "EV_DEBOUNCE_TIMER_EXPIRED"},
{1030, "EV_INTER_DIGIT_TIMER_EXPIRED"},
{100, "EV_INIT_CHANNEL"},
{101, "EV_BUSY_TONE_STOPPED"},
{102, "EV_FAST_BUSY_TONE_STOPPED"},
{103, "EV_TO_USER"},
{104, "SEND_FIRST_DIGIT"},
{110, "EV_CLOSE_CHANNEL"},
{111, "EV_OPEN_CHANNEL"},
{112, "EV_FAIL_DIAL"},
{113, "EV_FAIL_SEND_CAS"},
{114, "EV_ALARM"},
{ACTRACE_CAS_EV_DTMF, "EV_DTMF"},
};
#define SEND_CAS 2
#define SEND_EVENT 3
#define CHANGE_COLLECT_TYPE 13
#define SEND_MF 8
#define SEND_DEST_NUM 4
static const value_string actrace_cas_function_vals[] = {
{0, "NILL"},
{1, "SET_TIMER"},
{SEND_CAS, "SEND_CAS"},
{SEND_EVENT, "SEND_EVENT"},
{SEND_DEST_NUM, "SEND_DEST_NUM"},
{5, "DEL_TIMER"},
{6, "START_COLLECT"},
{7, "STOP_COLLECT"},
{SEND_MF, "SEND_MF"},
{9, "STOP_DIAL_MF"},
{10, "SET_COUNTER"},
{11, "DEC_COUNTER"},
{12, "SEND_PROG_TON"},
{CHANGE_COLLECT_TYPE, "CHANGE_COLLECT_TYPE"},
{14, "GENERATE_CAS_EV"}
};
static const value_string actrace_cas_pstn_event_vals[] = {
{64, "acEV_PSTN_INTERNAL_ERROR"},
{65, "acEV_PSTN_CALL_CONNECTED"},
{66, "acEV_PSTN_INCOMING_CALL_DETECTED"},
{67, "acEV_PSTN_CALL_DISCONNECTED"},
{68, "acEV_PSTN_CALL_RELEASED"},
{69, "acEV_PSTN_REMOTE_ALERTING"},
{70, "acEV_PSTN_STARTED"},
{71, "acEV_PSTN_WARNING"},
{72, "acEV_ISDN_PROGRESS_INDICATION"},
{73, "acEV_PSTN_PROCEEDING_INDICATION"},
{74, "acEV_PSTN_ALARM"},
{75, "acEV_RESERVED"},
{76, "acEV_PSTN_LINE_INFO"},
{77, "acEV_PSTN_LOOP_CONFIRM"},
{78, "acEV_PSTN_RESTART_CONFIRM"},
{84, "acEV_ISDN_SETUP_ACK_IN"},
{85, "acEV_PSTN_CALL_INFORMATION"},
{128, "acEV_CAS_SEIZURE_DETECTED"},
{129, "acEV_CAS_CHANNEL_BLOCKED"},
{130, "acEV_CAS_PROTOCOL_STARTED"},
{131, "acEV_PSTN_CALL_STATE_RESPONSE"},
{132, "acEV_CAS_SEIZURE_ACK"}
};
static const value_string actrace_cas_collect_type_vals[] = {
{0, "COLLECT_TYPE_ADDRESS"},
{1, "COLLECT_TYPE_ANI"},
{2, "COLLECT_TYPE_SOURCE_CATEGORY"},
{3, "COLLECT_TYPE_LINE_CATEGORY"},
};
#define SEND_TYPE_ADDRESS 1
#define SEND_TYPE_SPECIFIC 2
#define SEND_TYPE_INTER_EXCHANGE_SWITCH 3
#define SEND_TYPE_ANI 4
#define SEND_TYPE_SOURCE_CATEGORY 5
#define SEND_TYPE_TRANSFER_CAPABILITY 6
static const value_string actrace_cas_send_type_vals[] = {
{SEND_TYPE_ADDRESS, "ADDRESS"},
{SEND_TYPE_SPECIFIC, "SPECIFIC"},
{SEND_TYPE_INTER_EXCHANGE_SWITCH, "INTER_EXCHANGE_SWITCH"},
{SEND_TYPE_ANI, "ANI"},
{SEND_TYPE_SOURCE_CATEGORY, "SOURCE_CATEGORY"},
{SEND_TYPE_TRANSFER_CAPABILITY, "TRANSFER_CAPABILITY"},
};
static const value_string actrace_cas_cause_vals[] = {
{1, "UNASSIGNED_NUMBER"},
{2, "NO_ROUTE_TO_TRANSIT_NET"},
{3, "NO_ROUTE_TO_DESTINATION"},
{6, "CHANNEL_UNACCEPTABLE"},
{7, "CALL_AWARDED_AND"},
{8, "PREEMPTION"},
{16, "NORMAL_CALL_CLEAR"},
{17, "USER_BUSY"},
{18, "NO_USER_RESPONDING"},
{19, "NO_ANSWER_FROM_USER_ALERTED"},
{20, "ACCEPT_DONE"},
{21, "CALL_REJECTED"},
{22, "NUMBER_CHANGED"},
{26, "NON_SELECTED_USER_CLEARING"},
{27, "DEST_OUT_OF_ORDER"},
{28, "INVALID_NUMBER_FORMAT"},
{29, "FACILITY_REJECT"},
{30, "RESPONSE_TO_STATUS_ENQUIRY"},
{31, "NORMAL_UNSPECIFIED"},
{32, "CIRCUIT_CONGESTION"},
{33, "USER_CONGESTION"},
{34, "NO_CIRCUIT_AVAILABLE"},
{38, "NETWORK_OUT_OF_ORDER"},
{41, "NETWORK_TEMPORARY_FAILURE"},
{42, "NETWORK_CONGESTION"},
{43, "ACCESS_INFORMATION_DISCARDED"},
{44, "REQUESTED_CIRCUIT_NOT_AVAILABLE"},
{47, "RESOURCE_UNAVAILABLE_UNSPECIFIED"},
{39, "PERM_FR_MODE_CONN_OUT_OF_S"},
{40, "PERM_FR_MODE_CONN_OPERATIONAL"},
{46, "PRECEDENCE_CALL_BLOCKED"},
{49, "QUALITY_OF_SERVICE_UNAVAILABLE"},
{50, "REQUESTED_FAC_NOT_SUBSCRIBED"},
{57, "BC_NOT_AUTHORIZED"},
{58, "BC_NOT_PRESENTLY_AVAILABLE"},
{63, "SERVICE_NOT_AVAILABLE"},
{53, "CUG_OUT_CALLS_BARRED"},
{55, "CUG_INC_CALLS_BARRED"},
{62, "ACCES_INFO_SUBS_CLASS_INCONS"},
{65, "BC_NOT_IMPLEMENTED"},
{66, "CHANNEL_TYPE_NOT_IMPLEMENTED"},
{69, "REQUESTED_FAC_NOT_IMPLEMENTED"},
{70, "ONLY_RESTRICTED_INFO_BEARER"},
{79, "SERVICE_NOT_IMPLEMENTED_UNSPECIFIED"},
{81, "INVALID_CALL_REF"},
{82, "IDENTIFIED_CHANNEL_NOT_EXIST"},
{83, "SUSPENDED_CALL_BUT_CALL_ID_NOT_EXIST"},
{84, "CALL_ID_IN_USE"},
{85, "NO_CALL_SUSPENDED"},
{86, "CALL_HAVING_CALL_ID_CLEARED"},
{88, "INCOMPATIBLE_DESTINATION"},
{91, "INVALID_TRANSIT_NETWORK_SELECTION"},
{95, "INVALID_MESSAGE_UNSPECIFIED"},
{87, "NOT_CUG_MEMBER"},
{90, "CUG_NON_EXISTENT"},
{96, "MANDATORY_IE_MISSING"},
{97, "MESSAGE_TYPE_NON_EXISTENT"},
{98, "MESSAGE_STATE_INCONSISTENCY"},
{99, "NON_EXISTENT_IE"},
{100, "INVALID_IE_CONTENT"},
{101, "MESSAGE_NOT_COMPATIBLE"},
{102, "RECOVERY_ON_TIMER_EXPIRY"},
{111, "PROTOCOL_ERROR_UNSPECIFIED"},
{127, "INTERWORKING_UNSPECIFIED"},
{128, "ACU_CAUSE_ACU_BAD_ADDRESS"},
{129, "ACU_CAUSE_ACU_BAD_SERVICE"},
{130, "ACU_CAUSE_ACU_COLLISION"},
{131, "ACU_CAUSE_ACU_FAC_REJECTED"},
{255, "ACU_NETWORK_CAUSE_NIL"},
{200, "C_ALREADY_BLOCKED"},
{201, "C_CHANNEL_BLOCKED"},
{202, "C_BLOCKING_DONE"},
{203, "C_ALREADY_UNBLOCKED"},
{204, "C_UNBLOCKING_DONE"},
{260, "CLRN_MFRn_A4"},
{261, "CLRN_MFRn_B1"},
{262, "CLRN_MFRn_B2"},
{263, "CLRN_MFRn_B3"},
{264, "CLRN_MFRn_B4"},
{265, "CLRN_MFRn_B5"},
{266, "CLRN_MFRn_B6"},
{267, "CLRN_MFRn_B7"},
{268, "CLRN_MFRn_B8"},
{269, "CLRN_MFRn_B9"},
{270, "CLRN_MFRn_B10"},
{271, "CLRN_MFRn_B11"},
{272, "CLRN_MFRn_B12"},
{273, "CLRN_MFRn_B13"},
{274, "CLRN_MFRn_B14"},
{275, "CLRN_MFRn_B15"},
{300, "ACURC_BUSY"},
{301, "ACURC_NOPROCEED"},
{302, "ACURC_NOANSWER"},
{303, "ACURC_NOAUTOANSWER"},
{304, "ACURC_CONGESTED"},
{305, "ACURC_INCOMING"},
{306, "ACURC_NOLINE"},
{307, "ACURC_ERRNUM"},
{308, "ACURC_INHNUM"},
{309, "ACURC_2MNUM"},
{310, "ACURC_HUNGUP"},
{311, "ACURC_NETWORK_ERROR"},
{312, "ACURC_TIMEOUT"},
{313, "ACURC_BAD_SERVICE"},
{314, "ACURC_INTERNAL"},
{315, "ACURC_OK"},
{316, "ACURC_BL_TIMEOUT"},
{317, "ACURC_IN_CALL"},
{318, "ACURC_CLEAR_RQ"},
};
/* ISDN */
#define PSTN_TO_BLADE 0x49446463
#define BLADE_TO_PSTN 0x49644443
static const value_string actrace_isdn_direction_vals[] = {
{PSTN_TO_BLADE, "Blade <-- PSTN"},
{BLADE_TO_PSTN, "Blade --> PSTN"},
};
/*
* Define the trees for actrace
* We need one for actrace itself, and one for the trunk protocol (CAS, ISDN, SS7)
*/
static int ett_actrace = -1;
static int ett_actrace_proto = -1;
/*
* Define the tap for actrace
*/
static int actrace_tap = -1;
static actrace_info_t *actrace_pi;
/*
* Here are the global variable associated with
* the user definable characteristics of the dissection
*/
static int global_actrace_udp_port = UDP_PORT_ACTRACE;
static int global_actrace_protocol = ACTRACE_CAS;
/*
* Variables to allow for proper deletion of dissector registration when
* the user changes port from the gui.
*/
static int actrace_udp_port = 0;
/* Some basic utility functions that are specific to this dissector */
static gboolean is_actrace(tvbuff_t *tvb, gint offset);
/*
* The dissect functions
*/
static void dissect_actrace_cas(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
proto_tree *actrace_tree, proto_tree *ti);
static void dissect_actrace_isdn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
proto_tree *actrace_tree, proto_tree *ti);
/************************************************************************
* dissect_actrace - The dissector for the AudioCodes Trace prtocol
************************************************************************/
static void dissect_actrace(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
gint sectionlen;
gint tvb_sectionend,tvb_sectionbegin, tvb_len, tvb_current_len;
proto_tree *actrace_tree, *ti;
/* Initialize variables */
tvb_sectionend = 0;
tvb_sectionbegin = tvb_sectionend;
sectionlen = 0;
tvb_len = tvb_length(tvb);
tvb_current_len = tvb_len;
actrace_tree = NULL;
ti = NULL;
/*
* Set the columns now, so that they'll be set correctly if we throw
* an exception. We can set them later as well....
*/
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_add_str(pinfo->cinfo, COL_PROTOCOL, "AC_TRACE");
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
/*
* Check to see whether we're really dealing with AC trace by looking
* for a valid "source" and fixed len for CAS; and the direction for ISDN.
* This isn't infallible, but its cheap and its better than nothing.
*/
if (is_actrace(tvb, 0))
{
if (tree)
{
/* Create our actrace subtree */
ti = proto_tree_add_item(tree,proto_actrace,tvb,0,-1, FALSE);
actrace_tree = proto_item_add_subtree(ti, ett_actrace);
}
switch (global_actrace_protocol)
{
case ACTRACE_CAS:
dissect_actrace_cas(tvb, pinfo, tree, actrace_tree,ti);
break;
case ACTRACE_ISDN:
dissect_actrace_isdn(tvb, pinfo, tree, actrace_tree,ti);
break;
}
} else {
if (check_col(pinfo->cinfo, COL_INFO))
col_add_str(pinfo->cinfo, COL_INFO, "Non CAS or ISDN AudioCodes trace message");
}
}
static actrace_info_t pi;
/* Dissect an individual actrace CAS message */
static void dissect_actrace_cas(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
proto_tree *actrace_tree, proto_tree *ti)
{
/* Declare variables */
gint sectionlen;
gint tvb_sectionend,tvb_sectionbegin, tvb_len, tvb_current_len;
gint32 value, function, trunk, bchannel, source, event, curr_state, next_state;
gint32 par0, par1, par2;
gchar *frame_label = NULL;
int direction = 0;
int offset = 0;
/* Initialize variables */
tvb_sectionend = 0;
tvb_sectionbegin = tvb_sectionend;
sectionlen = 0;
tvb_len = tvb_length(tvb);
tvb_current_len = tvb_len;
value = 0;
/* the CAS masages are 48 byte fixed */
if (tvb_len != 48) return;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_add_str(pinfo->cinfo, COL_PROTOCOL, "AC_CAS");
value = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_time, tvb, offset, 4, value);
offset += 4;
source = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_source, tvb, offset, 4, source);
offset += 4;
curr_state = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_current_state, tvb, offset, 4, curr_state);
offset += 4;
event = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_event, tvb, offset, 4, event);
offset += 4;
next_state = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_next_state, tvb, offset, 4, next_state);
offset += 4;
function = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_function, tvb, offset, 4, function);
offset += 4;
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%s|%d|%s|%d|%s|",
val_to_str(source, actrace_cas_source_vals_short, "ukn"),
curr_state,
val_to_str(event, actrace_cas_event_vals, "%d"),
next_state,
val_to_str(function, actrace_cas_function_vals, "%d"));
par0 = tvb_get_ntohl(tvb, offset);
switch (function)
{
case SEND_EVENT:
proto_tree_add_text(actrace_tree, tvb, offset, 4,
"Parameter 0: %s", val_to_str(par0,
actrace_cas_pstn_event_vals, "Unknown (%d)"));
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%s|",
val_to_str(par0, actrace_cas_pstn_event_vals, "%d"));
break;
case CHANGE_COLLECT_TYPE:
proto_tree_add_text(actrace_tree, tvb, offset, 4,
"Parameter 0: %s", val_to_str(par0,
actrace_cas_collect_type_vals, "Unknown (%d)"));
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%s|",
val_to_str(par0, actrace_cas_collect_type_vals, "%d"));
break;
case SEND_MF:
case SEND_DEST_NUM:
proto_tree_add_text(actrace_tree, tvb, offset, 4,
"Parameter 0: %s", val_to_str(par0,
actrace_cas_send_type_vals, "Unknown (%d)"));
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%s|",
val_to_str(par0, actrace_cas_send_type_vals, "%d"));
break;
default:
proto_tree_add_int(actrace_tree, hf_actrace_cas_par0, tvb, offset, 4, par0);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%d|", par0);
}
offset += 4;
par1 = tvb_get_ntohl(tvb, offset);
if (function == SEND_EVENT) {
proto_tree_add_text(actrace_tree, tvb, offset, 4,
"Parameter 1: %s", val_to_str(par1, actrace_cas_cause_vals, "Unknown (%d)"));
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%s|",
val_to_str(par1, actrace_cas_cause_vals, "%d"));
} else {
proto_tree_add_int(actrace_tree, hf_actrace_cas_par1, tvb, offset, 4, par1);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%d|", par1);
}
offset += 4;
par2 = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_par2, tvb, offset, 4, par2);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, "%d|", par2);
offset += 4;
trunk = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_trunk, tvb, offset, 4, trunk);
offset += 4;
bchannel = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_bchannel, tvb, offset, 4, bchannel);
offset += 4;
if (check_col(pinfo->cinfo, COL_INFO))
col_prepend_fstr(pinfo->cinfo, COL_INFO, "t%db%d|", trunk, bchannel);
value = tvb_get_ntohl(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_cas_connection_id, tvb, offset, 4, value);
offset += 4;
/* Add tap info for the Voip Graph */
if (source == ACTRACE_CAS_SOURCE_DSP) {
direction = 1;
if ( (event >= ACTRACE_CAS_EV_11) && (event <= ACTRACE_CAS_EV_00 ) ) {
frame_label = g_strdup_printf("AB: %s", val_to_str(event, actrace_cas_event_ab_vals, "ERROR") );
} else if ( (event >= 32) && (event <= 46 ) ) { /* is an MF tone */
frame_label = g_strdup_printf("MF: %s", val_to_str(event, actrace_cas_mf_vals, "ERROR") );
} else if ( (event == ACTRACE_CAS_EV_DTMF ) || (event == ACTRACE_CAS_EV_FIRST_DIGIT ) ) { /* DTMF digit */
frame_label = g_strdup_printf("DTMF: %u", par0 );
}
} else if (source == ACTRACE_CAS_SOURCE_TABLE) {
direction = 0;
if (function == SEND_MF) {
if (par0 == SEND_TYPE_SPECIFIC ) {
frame_label = g_strdup_printf("MF: %u", par1);
} else if (par0 == SEND_TYPE_ADDRESS ) {
frame_label = g_strdup("MF: DNIS digit");
} else if (par0 == SEND_TYPE_ANI ) {
frame_label = g_strdup("MF: ANI digit");
} else if (par0 == SEND_TYPE_SOURCE_CATEGORY ) {
frame_label = g_strdup("MF: src_category");
} else if (par0 == SEND_TYPE_TRANSFER_CAPABILITY ) {
frame_label = g_strdup("MF: trf_capability");
} else if (par0 == SEND_TYPE_INTER_EXCHANGE_SWITCH ) {
frame_label = g_strdup("MF: inter_exch_sw");
}
} else if (function == SEND_CAS) {
frame_label = g_strdup_printf("AB: %s", val_to_str(ACTRACE_CAS_EV_00-par0, actrace_cas_event_ab_vals, "ERROR"));
} else if (function == SEND_DEST_NUM) {
if (par0 == SEND_TYPE_ADDRESS ) {
frame_label = g_strdup_printf("DTMF/MF: sending DNIS", par1);
} else if (par0 == SEND_TYPE_ANI ) {
frame_label = g_strdup("DTMF/MF: sending ANI");
}
}
}
if (frame_label != NULL) {
/* Initialise packet info for passing to tap */
actrace_pi = g_malloc(sizeof(actrace_info_t));
actrace_pi->type = ACTRACE_CAS;
actrace_pi->direction = direction;
actrace_pi->trunk = trunk;
actrace_pi->cas_bchannel = bchannel;
actrace_pi->cas_frame_label = frame_label;
/* Report this packet to the tap */
tap_queue_packet(actrace_tap, pinfo, actrace_pi);
}
}
/* Dissect an individual actrace ISDN message */
static void dissect_actrace_isdn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
proto_tree *actrace_tree, proto_tree *ti)
{
/* Declare variables */
gint len;
gint32 value, trunk;
tvbuff_t *next_tvb;
int offset = 0;
len = tvb_get_ntohs(tvb, 44);
value = tvb_get_ntohl(tvb, offset+4);
proto_tree_add_int(actrace_tree, hf_actrace_isdn_direction, tvb, offset+4, 4, value);
offset += 8;
trunk = tvb_get_ntohs(tvb, offset);
proto_tree_add_int(actrace_tree, hf_actrace_isdn_trunk, tvb, offset, 2, trunk);
offset = 44;
proto_tree_add_int(actrace_tree, hf_actrace_isdn_length, tvb, offset, 2, len);
/* if it is a q931 packet (we don't want LAPD packets for Voip Graph) add tap info */
if (len > 4) {
/* Initialise packet info for passing to tap */
actrace_pi = g_malloc(sizeof(actrace_info_t));
actrace_pi->type = ACTRACE_ISDN;
actrace_pi->direction = (value==PSTN_TO_BLADE?1:0);
actrace_pi->trunk = trunk;
/* Report this packet to the tap */
tap_queue_packet(actrace_tap, pinfo, actrace_pi);
}
/* Dissect lapd payload */
offset += 2 ;
next_tvb = tvb_new_subset(tvb, offset, len, len);
call_dissector(lapd_handle, next_tvb, pinfo, tree);
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_add_str(pinfo->cinfo, COL_PROTOCOL, "AC_ISDN");
if (check_col(pinfo->cinfo, COL_INFO))
col_prepend_fstr(pinfo->cinfo, COL_INFO, "Trunk:%d Blade %s PSTN "
, trunk, value==PSTN_TO_BLADE?"<--":"-->");
}
/* Register all the bits needed with the filtering engine */
void proto_register_actrace(void)
{
static hf_register_info hf[] =
{
/* CAS */
{ &hf_actrace_cas_time,
{ "Time", "actrace.cas.time", FT_INT32, BASE_DEC, NULL, 0x0,
"Capture Time", HFILL }},
{ &hf_actrace_cas_source,
{ "Source", "actrace.cas.source", FT_INT32, BASE_DEC, VALS(actrace_cas_source_vals), 0x0,
"Source", HFILL }},
{ &hf_actrace_cas_current_state,
{ "Current State", "actrace.cas.curr_state", FT_INT32, BASE_DEC, NULL, 0x0,
"Current State", HFILL }},
{ &hf_actrace_cas_event,
{ "Event", "actrace.cas.event", FT_INT32, BASE_DEC, VALS(actrace_cas_event_vals), 0x0,
"New Event", HFILL }},
{ &hf_actrace_cas_next_state,
{ "Next State", "actrace.cas.next_state", FT_INT32, BASE_DEC, NULL, 0x0,
"Next State", HFILL }},
{ &hf_actrace_cas_function,
{ "Function", "actrace.cas.function", FT_INT32, BASE_DEC, VALS(actrace_cas_function_vals), 0x0,
"Function", HFILL }},
{ &hf_actrace_cas_par0,
{ "Parameter 0", "actrace.cas.par0", FT_INT32, BASE_DEC, NULL, 0x0,
"Parameter 0", HFILL }},
{ &hf_actrace_cas_par1,
{ "Parameter 1", "actrace.cas.par1", FT_INT32, BASE_DEC, NULL, 0x0,
"Parameter 1", HFILL }},
{ &hf_actrace_cas_par2,
{ "Parameter 2", "actrace.cas.par2", FT_INT32, BASE_DEC, NULL, 0x0,
"Parameter 2", HFILL }},
{ &hf_actrace_cas_trunk,
{ "Trunk Number", "actrace.cas.trunk", FT_INT32, BASE_DEC, NULL, 0x0,
"Trunk Number", HFILL }},
{ &hf_actrace_cas_bchannel,
{ "BChannel", "actrace.cas.bchannel", FT_INT32, BASE_DEC, NULL, 0x0,
"BChannel", HFILL }},
{ &hf_actrace_cas_connection_id,
{ "Connection ID", "actrace.cas.conn_id", FT_INT32, BASE_DEC, NULL, 0x0,
"Connection ID", HFILL }},
/* ISDN */
{ &hf_actrace_isdn_trunk,
{ "Trunk Number", "actrace.isdn.trunk", FT_INT16, BASE_DEC, NULL, 0x0,
"Trunk Number", HFILL }},
{ &hf_actrace_isdn_direction,
{ "Direction", "actrace.isdn.dir", FT_INT32, BASE_DEC, VALS(actrace_isdn_direction_vals), 0x0,
"Direction", HFILL }},
{ &hf_actrace_isdn_length,
{ "Length", "actrace.isdn.length", FT_INT16, BASE_DEC, NULL, 0x0,
"Length", HFILL }},
};
static gint *ett[] =
{
&ett_actrace,
};
module_t *actrace_module;
/* Register protocol */
proto_actrace = proto_register_protocol("AudioCodes Trunk Trace", "ACtrace", "actrace");
proto_register_field_array(proto_actrace, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/* Register our configuration options */
actrace_module = prefs_register_protocol(proto_actrace, proto_reg_handoff_actrace);
prefs_register_uint_preference(actrace_module, "udp_port",
"AudioCodes Trunk Trace UDP port",
"Set the UDP port for AudioCodes Trunk Traces.\n"
"Use http://x.x.x.x/TrunkTraces to enable the traces in the Blade",
10, &global_actrace_udp_port);
prefs_register_obsolete_preference(actrace_module, "display_dissect_tree");
actrace_tap = register_tap("actrace");
}
/* The registration hand-off routine */
void proto_reg_handoff_actrace(void)
{
static int actrace_prefs_initialized = FALSE;
static dissector_handle_t actrace_handle;
/* Get a handle for the lapd dissector. */
lapd_handle = find_dissector("lapd");
if (!actrace_prefs_initialized)
{
actrace_handle = create_dissector_handle(dissect_actrace, proto_actrace);
actrace_prefs_initialized = TRUE;
}
else
{
dissector_delete("udp.port", actrace_udp_port, actrace_handle);
}
/* Set our port number for future use */
actrace_udp_port = global_actrace_udp_port;
dissector_add("udp.port", global_actrace_udp_port, actrace_handle);
}
/*
* is_actrace - A function for determining whether there is a
* AudioCodes packet at offset in tvb. The packet could be
* a CAS, ISDN or other Trunk protocol. Here we are only
* trying to decode CAS or ISDN protocols
*
* Parameter:
* tvb - The tvbuff in which we are looking for
* offset - The offset in tvb at which we are looking for
*
* Return: TRUE if there is an AudioCode trace packet at offset in tvb, otherwise FALSE
*/
static gboolean is_actrace(tvbuff_t *tvb, gint offset)
{
gint tvb_len;
gint32 source, isdn_header;
tvb_len = tvb_length(tvb);
/* is a CAS packet?
* the CAS masages are 48 byte fixed and the sorce should be 0,1 or 2 (DSP, User or Table)
*/
source = tvb_get_ntohl(tvb, offset+4);
if ( (tvb_len == 48) && ((source > -1) && (source <3)) ) {
global_actrace_protocol = ACTRACE_CAS;
return TRUE;
}
/* is ISDN packet?
* the ISDN packets have 0x49446463 for packets from PSTN to the Blade and
* 0x49644443 for packets from the Blade to the PSTN at offset 4
*/
isdn_header = tvb_get_ntohl(tvb, offset+4);
if ( (tvb_len >= 50) && ( (isdn_header == PSTN_TO_BLADE) || (isdn_header == BLADE_TO_PSTN)) ){
global_actrace_protocol = ACTRACE_ISDN;
return TRUE;
}
return FALSE;
}

35
epan/dissectors/packet-actrace.h Normal file
View File

@ -0,0 +1,35 @@
/* packet-actrace.h
* Routines for AudioCodes Trunk traces packet disassembly
*
*
* Copyright (c) 2005 by Alejandro Vaquero <alejandro.vaquero@verso.com>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1999 Gerald Combs
*
* 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.
*/
/* Container for tapping relevant data */
typedef struct _actrace_info_t
{
int type; /* ACTRACE_CAS=1 ACTRACE_ISDN=2 */
int direction; /* direction BLADE_TO_PSTN=0 PSTN_TO_BLADE=1 */
int trunk;
gint32 cas_bchannel;
gchar *cas_frame_label;
} actrace_info_t;

48
epan/dissectors/packet-q931.c
View File

@ -136,50 +136,7 @@ static void
dissect_q931_IEs(tvbuff_t *tvb, packet_info *pinfo, proto_tree *root_tree,
proto_tree *q931_tree, gboolean is_tpkt, int offset, int initial_codeset);
/*
* Q.931 message types.
*/
#define Q931_ESCAPE 0x00
#define Q931_ALERTING 0x01
#define Q931_CALL_PROCEEDING 0x02
#define Q931_CONNECT 0x07
#define Q931_CONNECT_ACK 0x0F
#define Q931_PROGRESS 0x03
#define Q931_SETUP 0x05
#define Q931_SETUP_ACK 0x0D
#define Q931_HOLD 0x24
#define Q931_HOLD_ACK 0x28
#define Q931_HOLD_REJECT 0x30
#define Q931_RESUME 0x26
#define Q931_RESUME_ACK 0x2E
#define Q931_RESUME_REJECT 0x22
#define Q931_RETRIEVE 0x31
#define Q931_RETRIEVE_ACK 0x33
#define Q931_RETRIEVE_REJECT 0x37
#define Q931_SUSPEND 0x25
#define Q931_SUSPEND_ACK 0x2D
#define Q931_SUSPEND_REJECT 0x21
#define Q931_USER_INFORMATION 0x20
#define Q931_DISCONNECT 0x45
#define Q931_RELEASE 0x4D
#define Q931_RELEASE_COMPLETE 0x5A
#define Q931_RESTART 0x46
#define Q931_RESTART_ACK 0x4E
#define Q931_CONGESTION_CONTROL 0x79
#define Q931_FACILITY 0x62
#define Q931_INFORMATION 0x7B
#define Q931_NOTIFY 0x6E
#define Q931_REGISTER 0x64
#define Q931_SEGMENT 0x60
#define Q931_STATUS 0x7D
#define Q931_STATUS_ENQUIRY 0x75
#define Q931_VERSION 0x0a
#define Q931_GROUIP_SERVICE 0x06
#define Q931_GROUIP_SERVICE_ACK 0x0b
#define Q931_RESYNC_REQ 0x08
#define Q931_RESYNC_RESP 0x09
static const value_string q931_message_type_vals[] = {
const value_string q931_message_type_vals[] = {
{ Q931_ESCAPE, "ESCAPE" },
{ Q931_ALERTING, "ALERTING" },
{ Q931_CALL_PROCEEDING, "CALL PROCEEDING" },
@ -2433,6 +2390,9 @@ dissect_q931_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
offset += call_ref_len;
}
message_type = tvb_get_guint8(tvb, offset);
if(have_valid_q931_pi) {
q931_pi->message_type = message_type;
}
if (check_col(pinfo->cinfo, COL_INFO)) {
col_add_str(pinfo->cinfo, COL_INFO,
val_to_str(message_type, q931_message_type_vals,

45
epan/dissectors/packet-q931.h
View File

@ -49,6 +49,7 @@ typedef struct _q931_packet_info {
gchar *called_number;
guint8 cause_value;
gint32 crv;
guint8 message_type;
} q931_packet_info;
/*
@ -57,7 +58,51 @@ typedef struct _q931_packet_info {
* libethereal.dll, we need a special declaration.
*/
ETH_VAR_IMPORT const value_string q931_cause_code_vals[];
ETH_VAR_IMPORT const value_string q931_message_type_vals[];
extern const value_string q931_protocol_discriminator_vals[];
/*
* Q.931 message types.
*/
#define Q931_ESCAPE 0x00
#define Q931_ALERTING 0x01
#define Q931_CALL_PROCEEDING 0x02
#define Q931_CONNECT 0x07
#define Q931_CONNECT_ACK 0x0F
#define Q931_PROGRESS 0x03
#define Q931_SETUP 0x05
#define Q931_SETUP_ACK 0x0D
#define Q931_HOLD 0x24
#define Q931_HOLD_ACK 0x28
#define Q931_HOLD_REJECT 0x30
#define Q931_RESUME 0x26
#define Q931_RESUME_ACK 0x2E
#define Q931_RESUME_REJECT 0x22
#define Q931_RETRIEVE 0x31
#define Q931_RETRIEVE_ACK 0x33
#define Q931_RETRIEVE_REJECT 0x37
#define Q931_SUSPEND 0x25
#define Q931_SUSPEND_ACK 0x2D
#define Q931_SUSPEND_REJECT 0x21
#define Q931_USER_INFORMATION 0x20
#define Q931_DISCONNECT 0x45
#define Q931_RELEASE 0x4D
#define Q931_RELEASE_COMPLETE 0x5A
#define Q931_RESTART 0x46
#define Q931_RESTART_ACK 0x4E
#define Q931_CONGESTION_CONTROL 0x79
#define Q931_FACILITY 0x62
#define Q931_INFORMATION 0x7B
#define Q931_NOTIFY 0x6E
#define Q931_REGISTER 0x64
#define Q931_SEGMENT 0x60
#define Q931_STATUS 0x7D
#define Q931_STATUS_ENQUIRY 0x75
#define Q931_VERSION 0x0a
#define Q931_GROUIP_SERVICE 0x06
#define Q931_GROUIP_SERVICE_ACK 0x0b
#define Q931_RESYNC_REQ 0x08
#define Q931_RESYNC_RESP 0x09
#endif