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wireshark/tap-sipstat.c

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/* tap_sipstat.c
* sip message counter for wireshark
*
* $Id$
* Copied from gtk/sip_stat.c and tap-httpstat.c
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <string.h>
#include "epan/packet_info.h"
#include <epan/tap.h>
#include <epan/stat_cmd_args.h>
#include "epan/value_string.h"
#include "register.h"
#include <epan/dissectors/packet-sip.h>
/* used to keep track of the statictics for an entire program interface */
typedef struct _sip_stats_t {
char *filter;
guint32 packets; /* number of sip packets, including continuations */
guint32 resent_packets;
GHashTable *hash_responses;
GHashTable *hash_requests;
} sipstat_t;
/* used to keep track of the stats for a specific response code
* for example it can be { 3, 404, "Not Found" ,...}
* which means we captured 3 reply sip/1.1 404 Not Found */
typedef struct _sip_response_code_t {
guint32 packets; /* 3 */
guint response_code; /* 404 */
const gchar *name; /* Not Found */
sipstat_t *sp;
} sip_response_code_t;
/* used to keep track of the stats for a specific request string */
typedef struct _sip_request_method_t {
gchar *response; /* eg. : INVITE */
guint32 packets;
sipstat_t *sp;
} sip_request_method_t;
/* TODO: extra codes to be added from SIP extensions? */
static const value_string vals_status_code[] = {
{ 100, "Trying"},
{ 180, "Ringing"},
{ 181, "Call Is Being Forwarded"},
{ 182, "Queued"},
{ 183, "Session Progress"},
{ 199, "Informational - Others" },
{ 200, "OK"},
{ 202, "Accepted"},
{ 299, "Success - Others"}, /* used to keep track of other Success packets */
{ 300, "Multiple Choices"},
{ 301, "Moved Permanently"},
{ 302, "Moved Temporarily"},
{ 305, "Use Proxy"},
{ 380, "Alternative Service"},
{ 399, "Redirection - Others"},
{ 400, "Bad Request"},
{ 401, "Unauthorized"},
{ 402, "Payment Required"},
{ 403, "Forbidden"},
{ 404, "Not Found"},
{ 405, "Method Not Allowed"},
{ 406, "Not Acceptable"},
{ 407, "Proxy Authentication Required"},
{ 408, "Request Timeout"},
{ 410, "Gone"},
{ 412, "Conditional Request Failed"},
{ 413, "Request Entity Too Large"},
{ 414, "Request-URI Too Long"},
{ 415, "Unsupported Media Type"},
{ 416, "Unsupported URI Scheme"},
{ 420, "Bad Extension"},
{ 421, "Extension Required"},
{ 423, "Interval Too Brief"},
{ 480, "Temporarily Unavailable"},
{ 481, "Call/Transaction Does Not Exist"},
{ 482, "Loop Detected"},
{ 483, "Too Many Hops"},
{ 484, "Address Incomplete"},
{ 485, "Ambiguous"},
{ 486, "Busy Here"},
{ 487, "Request Terminated"},
{ 488, "Not Acceptable Here"},
{ 489, "Bad Event"},
{ 491, "Request Pending"},
{ 493, "Undecipherable"},
{ 499, "Client Error - Others"},
{ 500, "Server Internal Error"},
{ 501, "Not Implemented"},
{ 502, "Bad Gateway"},
{ 503, "Service Unavailable"},
{ 504, "Server Time-out"},
{ 505, "Version Not Supported"},
{ 513, "Message Too Large"},
{ 599, "Server Error - Others"},
{ 600, "Busy Everywhere"},
{ 603, "Decline"},
{ 604, "Does Not Exist Anywhere"},
{ 606, "Not Acceptable"},
{ 699, "Global Failure - Others"},
{ 0, NULL}
};
/* Create tables for responses and requests */
static void
sip_init_hash(sipstat_t *sp)
{
int i;
/* Create responses table */
sp->hash_responses = g_hash_table_new(g_int_hash, g_int_equal);
/* Add all response codes */
for (i=0 ; vals_status_code[i].strptr ; i++)
{
gint *key = g_malloc (sizeof(gint));
sip_response_code_t *sc = g_malloc (sizeof(sip_response_code_t));
*key = vals_status_code[i].value;
sc->packets=0;
sc->response_code = *key;
sc->name=vals_status_code[i].strptr;
sc->sp = sp;
g_hash_table_insert(sc->sp->hash_responses, key, sc);
}
/* Create empty requests table */
sp->hash_requests = g_hash_table_new(g_str_hash, g_str_equal);
}
static void
sip_draw_hash_requests( gchar *key _U_ , sip_request_method_t *data, gchar * format)
{
if (data->packets==0)
return;
printf( format, data->response, data->packets);
}
static void
sip_draw_hash_responses( gint * key _U_ , sip_response_code_t *data, char * format)
{
if (data==NULL) {
g_warning("C'est quoi ce borderl key=%d\n", *key);
exit(EXIT_FAILURE);
}
if (data->packets==0)
return;
printf(format, data->response_code, data->name, data->packets );
}
/* NOT USED at this moment */
/*
static void
sip_free_hash( gpointer key, gpointer value, gpointer user_data _U_ )
{
g_free(key);
g_free(value);
}
*/
static void
sip_reset_hash_responses(gchar *key _U_ , sip_response_code_t *data, gpointer ptr _U_ )
{
data->packets = 0;
}
static void
sip_reset_hash_requests(gchar *key _U_ , sip_request_method_t *data, gpointer ptr _U_ )
{
data->packets = 0;
}
static void
sipstat_reset(void *psp )
{
sipstat_t *sp=psp;
if (sp) {
sp->packets = 0;
sp->resent_packets = 0;
g_hash_table_foreach( sp->hash_responses, (GHFunc)sip_reset_hash_responses, NULL);
g_hash_table_foreach( sp->hash_requests, (GHFunc)sip_reset_hash_requests, NULL);
}
}
/* Main entry point to SIP tap */
static int
sipstat_packet(void *psp, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *pri)
{
const sip_info_value_t *value=pri;
sipstat_t *sp = (sipstat_t *)psp;
/* Total number of packets, including continuation packets */
sp->packets++;
/* Update resent count if flag set */
if (value->resend)
{
sp->resent_packets++;
}
/* Looking at both requests and responses */
if (value->response_code != 0)
{
/* Responses */
guint *key = g_malloc(sizeof(guint));
sip_response_code_t *sc;
/* Look up response code in hash table */
*key = value->response_code;
sc = g_hash_table_lookup(sp->hash_responses, key);
if (sc==NULL)
{
/* Non-standard status code ; we classify it as others
* in the relevant category
* (Informational,Success,Redirection,Client Error,Server Error,Global Failure)
*/
int i = value->response_code;
if ((i<100) || (i>=700))
{
/* Forget about crazy values */
return 0;
}
else if (i<200)
{
*key=199; /* Hopefully, this status code will never be used */
}
else if (i<300)
{
*key=299;
}
else if (i<400)
{
*key=399;
}
else if (i<500)
{
*key=499;
}
else if (i<600)
{
*key=599;
}
else
{
*key = 699;
}
/* Now look up this fallback code to get its text description */
sc = g_hash_table_lookup(sp->hash_responses, key);
if (sc==NULL)
{
return 0;
}
}
sc->packets++;
}
else if (value->request_method)
{
/* Requests */
sip_request_method_t *sc;
/* Look up the request method in the table */
sc = g_hash_table_lookup(sp->hash_requests, value->request_method);
if (sc == NULL)
{
/* First of this type. Create structure and initialise */
sc=g_malloc(sizeof(sip_request_method_t));
sc->response = g_strdup(value->request_method);
sc->packets = 1;
sc->sp = sp;
/* Insert it into request table */
g_hash_table_insert(sp->hash_requests, sc->response, sc);
}
else
{
/* Already existed, just update count for that method */
sc->packets++;
}
/* g_free(value->request_method); */
}
else
{
/* No request method set. Just ignore */
return 0;
}
return 1;
}
static void
sipstat_draw(void *psp )
{
sipstat_t *sp=psp;
printf("\n");
printf("===================================================================\n");
if (sp->filter == NULL)
printf("SIP Statistics\n");
else
printf("SIP Statistics with filter %s\n", sp->filter);
printf("\nNumber of SIP messages: %d", sp->packets);
printf("\nNumber of resent SIP messages: %d\n", sp->resent_packets);
printf( "\n* SIP Status Codes in reply packets\n");
g_hash_table_foreach( sp->hash_responses, (GHFunc)sip_draw_hash_responses,
" SIP %3d %-15s : %5d Packets\n");
printf("\n* List of SIP Request methods\n");
g_hash_table_foreach( sp->hash_requests, (GHFunc)sip_draw_hash_requests,
" %-15s : %5d Packets\n");
printf("===================================================================\n");
}
static void
sipstat_init(const char *optarg, void* userdata _U_)
{
sipstat_t *sp;
const char *filter=NULL;
GString *error_string;
if (strncmp (optarg, "sip,stat,", 9) == 0){
filter=optarg+9;
} else {
filter=NULL;
}
sp = g_malloc( sizeof(sipstat_t) );
if(filter){
sp->filter=g_strdup(filter);
} else {
sp->filter=NULL;
}
/*g_hash_table_foreach( sip_status, (GHFunc)sip_reset_hash_responses, NULL);*/
error_string = register_tap_listener(
"sip",
sp,
filter,
sipstat_reset,
sipstat_packet,
sipstat_draw);
if (error_string){
/* error, we failed to attach to the tap. clean up */
g_free(sp->filter);
g_free(sp);
fprintf (stderr, "twireshark: Couldn't register sip,stat tap: %s\n",
error_string->str);
g_string_free(error_string, TRUE);
exit(1);
}
sp->packets = 0;
sp->resent_packets = 0;
sip_init_hash(sp);
}
void
register_tap_listener_sipstat(void)
{
register_stat_cmd_arg("sip,stat", sipstat_init,NULL);
}
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