4c219ee855
The menu gets a new item (Statistics -> RTSP -> Packet Counter). Like HTTP, filter can be set and then the dialog windows shows the result of the RTSP analysis. https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6042 svn path=/trunk/; revision=37741
283 lines
6.9 KiB
C
283 lines
6.9 KiB
C
/* tap-rtspstat.c
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* tap-rtspstat March 2011
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*
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* Stephane GORSE (Orange Labs / France Telecom)
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* Copied from Jean-Michel FAYARD's works (HTTP)
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include "epan/packet_info.h"
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#include "epan/value_string.h"
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#include <epan/tap.h>
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#include <epan/stat_cmd_args.h>
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#include "register.h"
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#include <epan/dissectors/packet-rtsp.h>
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/* used to keep track of the statictics for an entire program interface */
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typedef struct _rtsp_stats_t {
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char *filter;
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GHashTable *hash_responses;
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GHashTable *hash_requests;
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} rtspstat_t;
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/* used to keep track of the stats for a specific response code
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* for example it can be { 3, 404, "Not Found" ,...}
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* which means we captured 3 reply rtsp/1.1 404 Not Found */
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typedef struct _rtsp_response_code_t {
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guint32 packets; /* 3 */
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guint response_code; /* 404 */
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const gchar *name; /* Not Found */
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rtspstat_t *sp;
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} rtsp_response_code_t;
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/* used to keep track of the stats for a specific request string */
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typedef struct _rtsp_request_methode_t {
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gchar *response; /* eg. : SETUP */
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guint32 packets;
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rtspstat_t *sp;
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} rtsp_request_methode_t;
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/* insert some entries */
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static void
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rtsp_init_hash( rtspstat_t *sp)
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{
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int i;
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sp->hash_responses = g_hash_table_new( g_int_hash, g_int_equal);
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for (i=0 ; rtsp_status_code_vals[i].strptr ; i++ )
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{
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gint *key = g_malloc (sizeof(gint));
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rtsp_response_code_t *sc = g_malloc (sizeof(rtsp_response_code_t));
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*key = rtsp_status_code_vals[i].value;
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sc->packets=0;
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sc->response_code = *key;
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sc->name=rtsp_status_code_vals[i].strptr;
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sc->sp = sp;
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g_hash_table_insert( sc->sp->hash_responses, key, sc);
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}
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sp->hash_requests = g_hash_table_new( g_str_hash, g_str_equal);
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}
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static void
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rtsp_draw_hash_requests( gchar *key _U_ , rtsp_request_methode_t *data, gchar * format)
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{
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if (data->packets==0)
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return;
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printf( format, data->response, data->packets);
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}
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static void
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rtsp_draw_hash_responses( gint * key _U_ , rtsp_response_code_t *data, char * format)
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{
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if (data==NULL) {
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g_warning("No data available, key=%d\n", *key);
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exit(EXIT_FAILURE);
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}
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if (data->packets==0)
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return;
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/* " RTSP %3d %-35s %9d packets", */
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printf(format, data->response_code, data->name, data->packets );
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}
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/* NOT USED at this moment */
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/*
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static void
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rtsp_free_hash( gpointer key, gpointer value, gpointer user_data _U_ )
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{
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g_free(key);
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g_free(value);
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}
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*/
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static void
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rtsp_reset_hash_responses(gchar *key _U_ , rtsp_response_code_t *data, gpointer ptr _U_ )
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{
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data->packets = 0;
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}
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static void
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rtsp_reset_hash_requests(gchar *key _U_ , rtsp_request_methode_t *data, gpointer ptr _U_ )
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{
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data->packets = 0;
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}
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static void
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rtspstat_reset(void *psp )
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{
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rtspstat_t *sp=psp;
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g_hash_table_foreach( sp->hash_responses, (GHFunc)rtsp_reset_hash_responses, NULL);
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g_hash_table_foreach( sp->hash_requests, (GHFunc)rtsp_reset_hash_requests, NULL);
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}
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static int
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rtspstat_packet(void *psp , packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *pri)
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{
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const rtsp_info_value_t *value=pri;
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rtspstat_t *sp=(rtspstat_t *) psp;
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/* We are only interested in reply packets with a status code */
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/* Request or reply packets ? */
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if (value->response_code!=0) {
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guint *key=g_malloc( sizeof(guint) );
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rtsp_response_code_t *sc;
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*key=value->response_code;
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sc = g_hash_table_lookup(
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sp->hash_responses,
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key);
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if (sc==NULL){
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/* non standard status code ; we classify it as others
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* in the relevant category (Informational,Success,Redirection,Client Error,Server Error)
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*/
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int i = value->response_code;
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if ((i<100) || (i>=600)) {
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return 0;
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}
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else if (i<200){
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*key=199; /* Hopefully, this status code will never be used */
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}
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else if (i<300){
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*key=299;
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}
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else if (i<400){
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*key=399;
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}
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else if (i<500){
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*key=499;
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}
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else{
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*key=599;
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}
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sc = g_hash_table_lookup(
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sp->hash_responses,
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key);
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if (sc==NULL)
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return 0;
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}
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sc->packets++;
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}
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else if (value->request_method){
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rtsp_request_methode_t *sc;
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sc = g_hash_table_lookup(
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sp->hash_requests,
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value->request_method);
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if (sc==NULL){
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sc=g_malloc( sizeof(rtsp_request_methode_t) );
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sc->response=g_strdup( value->request_method );
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sc->packets=1;
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sc->sp = sp;
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g_hash_table_insert( sp->hash_requests, sc->response, sc);
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} else {
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sc->packets++;
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}
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} else {
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return 0;
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}
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return 1;
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}
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static void
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rtspstat_draw(void *psp )
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{
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rtspstat_t *sp=psp;
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printf("\n");
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printf("===================================================================\n");
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if (! sp->filter[0])
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printf("RTSP Statistics\n");
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else
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printf("RTSP Statistics with filter %s\n", sp->filter);
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printf( "* RTSP Status Codes in reply packets\n");
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g_hash_table_foreach( sp->hash_responses, (GHFunc)rtsp_draw_hash_responses,
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" RTSP %3d %s\n");
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printf("* List of RTSP Request methods\n");
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g_hash_table_foreach( sp->hash_requests, (GHFunc)rtsp_draw_hash_requests,
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" %9s %d \n");
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printf("===================================================================\n");
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}
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/* When called, this function will create a new instance of gtk_rtspstat.
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*/
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static void
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gtk_rtspstat_init(const char *optarg,void* userdata _U_)
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{
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rtspstat_t *sp;
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const char *filter=NULL;
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GString *error_string;
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if (!strncmp (optarg, "rtsp,stat,", 10)){
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filter=optarg+10;
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} else {
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filter=NULL;
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}
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sp = g_malloc( sizeof(rtspstat_t) );
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if(filter){
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sp->filter=g_strdup(filter);
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} else {
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sp->filter=NULL;
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}
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/*g_hash_table_foreach( rtsp_status, (GHFunc)rtsp_reset_hash_responses, NULL);*/
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error_string = register_tap_listener(
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"rtsp",
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sp,
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filter,
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0,
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rtspstat_reset,
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rtspstat_packet,
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rtspstat_draw);
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if (error_string){
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/* error, we failed to attach to the tap. clean up */
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g_free(sp->filter);
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g_free(sp);
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fprintf (stderr, "tshark: Couldn't register rtsp,stat tap: %s\n",
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error_string->str);
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g_string_free(error_string, TRUE);
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exit(1);
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}
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rtsp_init_hash(sp);
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}
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void
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register_tap_listener_gtkrtspstat(void)
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{
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register_stat_cmd_arg("rtsp,stat,", gtk_rtspstat_init,NULL);
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}
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