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wireshark/gtk/h323_analysis.c

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/* h323_analysis.c
* H323 analysis addition for ethereal
*
* $Id$
*
* Copyright 2004, Iskratel, Ltd, Kranj
* By Miha Jemec <m.jemec@iskratel.si>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 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
/*do not define this symbol. will be added soon*/
/*#define USE_CONVERSATION_GRAPH 1*/
#include "h323_analysis.h"
#include "h323_conversations.h"
#include "h323_conversations_dlg.h"
#include <epan/epan_dissect.h>
#include <epan/filesystem.h>
#include "globals.h"
#include "util.h"
#include <epan/tap.h>
#include <epan/dissectors/packet-h225.h>
#include <epan/dissectors/packet-h245.h>
/* in /gtk ... */
#include "dlg_utils.h"
#include "ui_util.h"
#include "alert_box.h"
#include "simple_dialog.h"
#include "tap_menu.h"
#include "main.h"
#include "progress_dlg.h"
#include "compat_macros.h"
#include <string.h>
/****************************************************************************/
/* structure that holds general information about the connection */
typedef struct _user_data_t {
/* tap associated data*/
guint32 ip_src;
guint16 port_src;
guint32 ip_dst;
guint16 port_dst;
guint32 ip_src_h245;
guint16 port_src_h245;
guint16 transport;
GtkWidget *window;
GtkCList *clist1;
GtkWidget *label_stats;
GtkCList *selected_clist1;
gint selected_row;
} user_data_t;
/* Column titles. */
static gchar *titles[7] = {
"Packet",
"Time",
"Delay",
" Side A",
"Direction",
" Side B",
"Comment"
};
typedef const guint8 * ip_addr_p;
static gint32 last_sec = 0, last_usec = 0;
/****************************************************************************/
/* TAP FUNCTIONS */
/****************************************************************************/
/* when there is a [re]reading of packet's */
static void
h225_reset(void *user_data_arg _U_)
{
last_sec = 0;
last_usec = 0;
return;
}
/****************************************************************************/
/* here we can redraw the output */
/* not used yet */
static void h225_draw(void *prs _U_)
{
return;
}
static const GdkColor COLOR_DEFAULT = {0, 0xffff, 0xffff, 0xffff};
static const GdkColor COLOR_ERROR = {0, 0xffff, 0xbfff, 0xbfff};
static const GdkColor COLOR_WARNING = {0, 0xffff, 0xdfff, 0xbfff};
static const GdkColor COLOR_CN = {0, 0xbfff, 0xbfff, 0xffff};
/****************************************************************************/
/* append a line to clist1 */
static void add_to_clist1(GtkCList *clist1, guint32 number, gchar *time,
double delay, gchar *sideA, gboolean direction, gchar *sideB,
gchar *comment, GdkColor *color)
{
guint added_row;
gchar *data[7];
gchar field[7][32];
data[0]=&field[0][0];
data[1]=&field[1][0];
data[2]=&field[2][0];
data[3]=&field[3][0];
data[4]=&field[4][0];
data[5]=&field[5][0];
data[6]=&field[6][0];
g_snprintf(field[0], 32, "%u", number);
g_snprintf(field[1], 32, "%s", time);
g_snprintf(field[2], 32, "%f", delay);
g_snprintf(field[3], 32, "%s", sideA);
g_snprintf(field[4], 20, "%s", direction? "---->" : "<----");
g_snprintf(field[5], 32, "%s", sideB);
g_snprintf(field[6], 32, "%s", comment);
added_row = gtk_clist_append(GTK_CLIST(clist1), data);
gtk_clist_set_row_data(GTK_CLIST(clist1), added_row, GUINT_TO_POINTER(number));
gtk_clist_set_background(GTK_CLIST(clist1), added_row, color);
}
/****************************************************************************/
/* whenever a h225 packet is seen by the tap listener */
static int h225_packet(void *user_data_arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *h225info_arg)
{
user_data_t *user_data = user_data_arg;
const h225_packet_info *h225ptr_info = h225info_arg;
GdkColor color = COLOR_DEFAULT;
gchar timeStr[32];
gchar message[32];
guint32 src, dst;
double delay;
gint32 delay_sec, delay_usec;
/* time since beginning of capture */
g_snprintf(timeStr, sizeof(timeStr), "%d.%06d", pinfo->fd->rel_secs, pinfo->fd->rel_usecs);
/* time since previous packet seen in tap listener */
delay_sec = pinfo->fd->rel_secs - last_sec;
delay_usec = pinfo->fd->rel_usecs - last_usec;
delay = (double)delay_sec + ((double)delay_usec)/1000000;
last_sec = pinfo->fd->rel_secs;
last_usec = pinfo->fd->rel_usecs;
switch (h225ptr_info->cs_type) {
case H225_SETUP:
g_snprintf(message, sizeof(message),"H225 Setup");
break;
case H225_CALL_PROCEDING:
g_snprintf(message, sizeof(message),"H225 Call Proceding");
break;
case H225_ALERTING:
g_snprintf(message, sizeof(message),"H225 Alerting");
break;
case H225_CONNECT:
g_snprintf(message, sizeof(message),"H225 Connect");
break;
case H225_RELEASE_COMPLET:
g_snprintf(message, sizeof(message),"H225 Release Complet");
break;
case H225_OTHER:
g_snprintf(message, sizeof(message),"H225 Other");
}
g_memmove(&src, pinfo->src.data, 4);
g_memmove(&dst, pinfo->dst.data, 4);
if (src == user_data->ip_src)
add_to_clist1(user_data->clist1,pinfo->fd->num,timeStr,delay,message, 1, "", "", &color);
else
add_to_clist1(user_data->clist1, pinfo->fd->num, timeStr,delay, "", 0, message, "", &color);
return 0;
}
/****************************************************************************/
/* whenever a h245 packet is seen by the tap listener */
static int h245_packet(void *user_data_arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *h245info_arg)
{
user_data_t *user_data = user_data_arg;
const h245_packet_info *h245ptr_info = h245info_arg;
GdkColor color = COLOR_DEFAULT;
gchar timeStr[32];
gchar message[32];
guint32 src, dst;
double delay;
gint32 delay_sec, delay_usec;
/* time since beginning of capture */
g_snprintf(timeStr, sizeof(timeStr), "%d.%06d", pinfo->fd->rel_secs, pinfo->fd->rel_usecs);
/* time since previous packet seen in tap listener */
delay_sec = pinfo->fd->rel_secs - last_sec;
delay_usec = pinfo->fd->rel_usecs - last_usec;
delay = (double)delay_sec + ((double)delay_usec)/1000000;
last_sec = pinfo->fd->rel_secs;
last_usec = pinfo->fd->rel_usecs;
switch (h245ptr_info->msg_type) {
case H245_TermCapSet:
g_snprintf(message, sizeof(message),"H245 TermCapSet");
break;
case H245_TermCapSetAck:
g_snprintf(message, sizeof(message),"H245_TermCapSetAck");
break;
case H245_TermCapSetRjc:
g_snprintf(message, sizeof(message),"H245_TermCapSetRjc");
break;
case H245_TermCapSetRls:
g_snprintf(message, sizeof(message),"H245_TermCapSetRls");
break;
case H245_OpenLogChn:
g_snprintf(message, sizeof(message),"H245_OpenLogChn");
break;
case H245_OpenLogChnCnf:
g_snprintf(message, sizeof(message),"H245_OpenLogChnCnf");
break;
case H245_OpenLogChnAck:
g_snprintf(message, sizeof(message),"H245_OpenLogChnAck");
break;
case H245_OpenLogChnRjc:
g_snprintf(message, sizeof(message),"H245_OpenLogChnRjc");
break;
case H245_CloseLogChn:
g_snprintf(message, sizeof(message),"H245_CloseLogChn");
break;
case H245_CloseLogChnAck:
g_snprintf(message, sizeof(message),"H245_CloseLogChnAck");
break;
case H245_MastSlvDet:
g_snprintf(message, sizeof(message),"H245_MastSlvDet");
break;
case H245_MastSlvDetAck:
g_snprintf(message, sizeof(message),"H245_MastSlvDetAck");
break;
case H245_MastSlvDetRjc:
g_snprintf(message, sizeof(message),"H245_MastSlvDetRjc");
break;
case H245_MastSlvDetRls:
g_snprintf(message, sizeof(message),"H245_MastSlvDetRls");
break;
case H245_OTHER:
g_snprintf(message, sizeof(message),"H225 Other");
}
g_memmove(&src, pinfo->src.data, 4);
g_memmove(&dst, pinfo->dst.data, 4);
if (src == user_data->ip_src)
add_to_clist1(user_data->clist1,pinfo->fd->num,timeStr,delay,message, 1, "", "", &color);
else
add_to_clist1(user_data->clist1, pinfo->fd->num, timeStr,delay, "", 0, message, "", &color);
return 0;
}
/**************** Callbacks *************************************************/
/****************************************************************************/
/* XXX just copied from gtk/rpc_stat.c */
void protect_thread_critical_region(void);
void unprotect_thread_critical_region(void);
/****************************************************************************/
/* close the dialog window and remove the tap listener */
static void on_destroy(GtkWidget *win _U_, user_data_t *user_data _U_)
{
g_free(user_data);
}
/****************************************************************************/
static void on_clist_select_row(GtkCList *clist1 _U_,
gint row _U_,
gint column _U_,
GdkEvent *event _U_,
user_data_t *user_data _U_)
{
user_data->selected_clist1 = clist1;
user_data->selected_row = row;
}
/****************************************************************************/
static void on_goto_bt_clicked(GtkWidget *bt _U_, user_data_t *user_data _U_)
{
guint fnumber;
if (user_data->selected_clist1!=NULL) {
fnumber = GPOINTER_TO_UINT(gtk_clist_get_row_data(
GTK_CLIST(user_data->selected_clist1), user_data->selected_row) );
goto_frame(&cfile, fnumber);
}
}
/****************************************************************************/
/* re-dissects all packets */
static void on_refresh_bt_clicked(GtkWidget *bt _U_, user_data_t *user_data _U_)
{
gchar filter_text_h225[256];
gchar filter_text_h245[256];
/*gchar filter_text_rtp[256];*/
dfilter_t *sfcode;
GString *error_string;
/* clear the dialog box clists */
gtk_clist_clear(GTK_CLIST(user_data->clist1));
/* try to compile the filter for h225 */
g_snprintf(filter_text_h225,sizeof(filter_text_h225),
"h225 && (( ip.src==%s && %s.srcport==%u && ip.dst==%s && %s.dstport==%u ) || ( ip.src==%s && %s.srcport==%u && ip.dst==%s && %s.dstport==%u ))",
ip_to_str((ip_addr_p)&(user_data->ip_src)),
transport_prot_name[user_data->transport],
user_data->port_src,
ip_to_str((ip_addr_p)&(user_data->ip_dst)),
transport_prot_name[user_data->transport],
user_data->port_dst,
ip_to_str((ip_addr_p)&(user_data->ip_dst)),
transport_prot_name[user_data->transport],
user_data->port_dst,
ip_to_str((ip_addr_p)&(user_data->ip_src)),
transport_prot_name[user_data->transport],
user_data->port_src
);
if (!dfilter_compile(filter_text_h225, &sfcode)) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dfilter_error_msg);
return;
}
/* try to compile the filter for h245 */
g_snprintf(filter_text_h245,sizeof(filter_text_h245),
"h245 && (( ip.src==%s && %s.srcport==%u ) || ( ip.dst==%s && %s.dstport==%u ))",
ip_to_str((ip_addr_p)&(user_data->ip_src_h245)),
transport_prot_name[user_data->transport],
user_data->port_src_h245,
ip_to_str((ip_addr_p)&(user_data->ip_src_h245)),
transport_prot_name[user_data->transport],
user_data->port_src_h245
);
if (!dfilter_compile(filter_text_h245, &sfcode)) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, dfilter_error_msg);
return;
}
/* register tap h225 listener */
error_string = register_tap_listener("h225", user_data, filter_text_h225,
h225_reset, h225_packet, h225_draw);
if (error_string != NULL) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, error_string->str);
g_string_free(error_string, TRUE);
return;
}
/* register tap h245 listener */
error_string = register_tap_listener("h245", user_data, filter_text_h245,
NULL, h245_packet, NULL);
if (error_string != NULL) {
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, error_string->str);
g_string_free(error_string, TRUE);
return;
}
/* retap all packets */
retap_packets(&cfile);
/* remove tap listener again */
protect_thread_critical_region();
remove_tap_listener(user_data);
remove_tap_listener(user_data);
unprotect_thread_critical_region();
}
/************************************************************************************/
/************** Create the dialog box with all widgets ******************************/
void create_h225_dialog(user_data_t* user_data)
{
GtkWidget *window = NULL;
GtkWidget *clist_h225;
/*GtkWidget *label_stats;*/
GtkWidget *main_vb;
GtkWidget *label;
GtkWidget *scrolled_window;
GtkWidget *box4, *goto_bt, *close_bt, *refresh_bt;
GtkTooltips *tooltips = gtk_tooltips_new();
gchar label_forward[150];
gchar str_ip_src[16];
gchar str_ip_dst[16];
/* as multiple analysis windows can be opened,
* don't use window_new_with_geom(), as that will place them on top of each other! */
window = window_new(GTK_WINDOW_TOPLEVEL, "Ethereal: H.323 VoIP Analysis");
gtk_window_set_default_size(GTK_WINDOW(window), 700, 350);
/* Container for each row of widgets */
main_vb = gtk_vbox_new(FALSE, 2);
gtk_container_add(GTK_CONTAINER(window), main_vb);
gtk_container_set_border_width(GTK_CONTAINER(main_vb), 2);
gtk_widget_show(main_vb);
strcpy(str_ip_src, ip_to_str((ip_addr_p)&user_data->ip_src));
strcpy(str_ip_dst, ip_to_str((ip_addr_p)&user_data->ip_dst));
g_snprintf(label_forward, 149,
"\nAnalysing H.323 Call between %s port %u (Side A) and %s port %u (Side B)\n",
str_ip_src, user_data->port_src, str_ip_dst, user_data->port_dst);
/* label */
label = gtk_label_new(label_forward);
gtk_box_pack_start (GTK_BOX (main_vb), label, FALSE, FALSE, 0);
/* scrolled window */
scrolled_window = scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
gtk_box_pack_start (GTK_BOX (main_vb), scrolled_window, TRUE, TRUE, 0);
/* place for some statistics */
/*label_stats = gtk_label_new("\n");*/
/*gtk_box_pack_start(GTK_BOX(main_vb), label_stats, FALSE, FALSE, 0);*/
/* packet clist */
clist_h225 = gtk_clist_new_with_titles(7, titles);
gtk_container_add(GTK_CONTAINER(scrolled_window), clist_h225);
gtk_widget_show(clist_h225);
SIGNAL_CONNECT(clist_h225, "select_row", on_clist_select_row, user_data);
/* column widths and justification */
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 0, 45);
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 1, 90);
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 2, 90);
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 3, 140);
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 4, 60);
gtk_clist_set_column_width(GTK_CLIST(clist_h225), 5, 140);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 0, GTK_JUSTIFY_CENTER);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 1, GTK_JUSTIFY_CENTER);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 2, GTK_JUSTIFY_CENTER);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 3, GTK_JUSTIFY_LEFT);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 4, GTK_JUSTIFY_CENTER);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 5, GTK_JUSTIFY_LEFT);
gtk_clist_set_column_justification(GTK_CLIST(clist_h225), 6, GTK_JUSTIFY_CENTER);
gtk_widget_show(scrolled_window);
/* buttons */
box4 = gtk_hbutton_box_new();
gtk_box_pack_start(GTK_BOX(main_vb), box4, FALSE, FALSE, 0);
gtk_container_set_border_width(GTK_CONTAINER(box4), 10);
gtk_button_box_set_layout(GTK_BUTTON_BOX (box4), GTK_BUTTONBOX_END);
gtk_button_box_set_spacing(GTK_BUTTON_BOX (box4), 10);
gtk_button_box_set_child_ipadding(GTK_BUTTON_BOX (box4), 4, 0);
gtk_widget_show(box4);
refresh_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_REFRESH);
gtk_container_add(GTK_CONTAINER(box4), refresh_bt);
gtk_widget_show(refresh_bt);
SIGNAL_CONNECT(refresh_bt, "clicked", on_refresh_bt_clicked, user_data);
gtk_tooltips_set_tip (tooltips, refresh_bt, "Refresh data", NULL);
goto_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_JUMP_TO);
gtk_container_add(GTK_CONTAINER(box4), goto_bt);
gtk_widget_show(goto_bt);
SIGNAL_CONNECT(goto_bt, "clicked", on_goto_bt_clicked, user_data);
gtk_tooltips_set_tip (tooltips, goto_bt, "Jump to the selected packet", NULL);
close_bt = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE);
gtk_container_add(GTK_CONTAINER(box4), close_bt);
GTK_WIDGET_SET_FLAGS(close_bt, GTK_CAN_DEFAULT);
gtk_widget_show(close_bt);
gtk_tooltips_set_tip (tooltips, close_bt, "Close this dialog", NULL);
window_set_cancel_button(window, close_bt, window_cancel_button_cb);
SIGNAL_CONNECT(window, "delete_event", window_delete_event_cb, NULL);
SIGNAL_CONNECT(window, "destroy", on_destroy, user_data);
gtk_widget_show_all(window);
window_present(window);
/* some widget references need to be saved for outside use */
user_data->window = window;
user_data->clist1 = GTK_CLIST(clist_h225);
user_data->label_stats = label;
user_data->selected_clist1 = GTK_CLIST(clist_h225);
user_data->selected_row = 0;
}
/****************************************************************************/
void h323_analysis(
guint32 ip_src,
guint16 port_src,
guint32 ip_dst,
guint16 port_dst,
guint32 ip_src_h245,
guint16 port_src_h245,
guint16 transport
)
{
user_data_t *user_data;
/* init */
user_data = g_malloc(sizeof(user_data_t));
user_data->ip_src = ip_src;
user_data->port_src = port_src;
user_data->ip_dst = ip_dst;
user_data->port_dst = port_dst;
user_data->ip_src_h245 = ip_src_h245;
user_data->port_src_h245 = port_src_h245;
user_data->transport = transport;
/* create the dialog box */
create_h225_dialog(user_data);
/* proceed as if the Refresh button would have been pressed */
on_refresh_bt_clicked(NULL, user_data);
}
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