![Anders Broman](/assets/img/avatar_default.png)
- add SIP response code 412 ("Conditional Request Failed") to stats taps. svn path=/trunk/; revision=17409
397 lines
11 KiB
C
397 lines
11 KiB
C
/* tap_sipstat.c
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* sip message counter for ethereal
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*
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* $Id$
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* Copied from gtk/sip_stat.c and tap-httpstat.c
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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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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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#include <string.h>
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#include "epan/packet_info.h"
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#include <epan/tap.h>
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#include <epan/stat_cmd_args.h>
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#include "epan/value_string.h"
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#include "register.h"
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#include <epan/dissectors/packet-sip.h>
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/* used to keep track of the statictics for an entire program interface */
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typedef struct _sip_stats_t {
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char *filter;
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guint32 packets; /* number of sip packets, including continuations */
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guint32 resent_packets;
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GHashTable *hash_responses;
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GHashTable *hash_requests;
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} sipstat_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 sip/1.1 404 Not Found */
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typedef struct _sip_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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sipstat_t *sp;
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} sip_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 _sip_request_method_t {
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gchar *response; /* eg. : INVITE */
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guint32 packets;
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sipstat_t *sp;
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} sip_request_method_t;
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/* TODO: extra codes to be added from SIP extensions? */
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static const value_string vals_status_code[] = {
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{ 100, "Trying"},
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{ 180, "Ringing"},
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{ 181, "Call Is Being Forwarded"},
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{ 182, "Queued"},
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{ 183, "Session Progress"},
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{ 199, "Informational - Others" },
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{ 200, "OK"},
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{ 202, "Accepted"},
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{ 299, "Success - Others"}, /* used to keep track of other Success packets */
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{ 300, "Multiple Choices"},
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{ 301, "Moved Permanently"},
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{ 302, "Moved Temporarily"},
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{ 305, "Use Proxy"},
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{ 380, "Alternative Service"},
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{ 399, "Redirection - Others"},
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{ 400, "Bad Request"},
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{ 401, "Unauthorized"},
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{ 402, "Payment Required"},
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{ 403, "Forbidden"},
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{ 404, "Not Found"},
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{ 405, "Method Not Allowed"},
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{ 406, "Not Acceptable"},
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{ 407, "Proxy Authentication Required"},
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{ 408, "Request Timeout"},
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{ 410, "Gone"},
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{ 412, "Conditional Request Failed"},
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{ 413, "Request Entity Too Large"},
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{ 414, "Request-URI Too Long"},
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{ 415, "Unsupported Media Type"},
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{ 416, "Unsupported URI Scheme"},
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{ 420, "Bad Extension"},
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{ 421, "Extension Required"},
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{ 423, "Interval Too Brief"},
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{ 480, "Temporarily Unavailable"},
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{ 481, "Call/Transaction Does Not Exist"},
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{ 482, "Loop Detected"},
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{ 483, "Too Many Hops"},
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{ 484, "Address Incomplete"},
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{ 485, "Ambiguous"},
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{ 486, "Busy Here"},
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{ 487, "Request Terminated"},
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{ 488, "Not Acceptable Here"},
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{ 489, "Bad Event"},
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{ 491, "Request Pending"},
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{ 493, "Undecipherable"},
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{ 499, "Client Error - Others"},
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{ 500, "Server Internal Error"},
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{ 501, "Not Implemented"},
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{ 502, "Bad Gateway"},
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{ 503, "Service Unavailable"},
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{ 504, "Server Time-out"},
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{ 505, "Version Not Supported"},
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{ 513, "Message Too Large"},
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{ 599, "Server Error - Others"},
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{ 600, "Busy Everywhere"},
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{ 603, "Decline"},
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{ 604, "Does Not Exist Anywhere"},
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{ 606, "Not Acceptable"},
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{ 699, "Global Failure - Others"},
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{ 0, NULL}
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};
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/* Create tables for responses and requests */
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static void
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sip_init_hash(sipstat_t *sp)
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{
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int i;
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/* Create responses table */
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sp->hash_responses = g_hash_table_new(g_int_hash, g_int_equal);
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/* Add all response codes */
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for (i=0 ; vals_status_code[i].strptr ; i++)
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{
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gint *key = g_malloc (sizeof(gint));
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sip_response_code_t *sc = g_malloc (sizeof(sip_response_code_t));
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*key = vals_status_code[i].value;
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sc->packets=0;
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sc->response_code = *key;
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sc->name=vals_status_code[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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/* Create empty requests table */
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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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sip_draw_hash_requests( gchar *key _U_ , sip_request_method_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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sip_draw_hash_responses( gint * key _U_ , sip_response_code_t *data, char * format)
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{
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if (data==NULL) {
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g_warning("C'est quoi ce borderl 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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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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sip_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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sip_reset_hash_responses(gchar *key _U_ , sip_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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sip_reset_hash_requests(gchar *key _U_ , sip_request_method_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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sipstat_reset(void *psp )
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{
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sipstat_t *sp=psp;
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if (sp) {
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sp->packets = 0;
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sp->resent_packets = 0;
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g_hash_table_foreach( sp->hash_responses, (GHFunc)sip_reset_hash_responses, NULL);
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g_hash_table_foreach( sp->hash_requests, (GHFunc)sip_reset_hash_requests, NULL);
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}
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}
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/* Main entry point to SIP tap */
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static int
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sipstat_packet(void *psp, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *pri)
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{
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const sip_info_value_t *value=pri;
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sipstat_t *sp = (sipstat_t *)psp;
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/* Total number of packets, including continuation packets */
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sp->packets++;
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/* Update resent count if flag set */
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if (value->resend)
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{
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sp->resent_packets++;
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}
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/* Looking at both requests and responses */
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if (value->response_code != 0)
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{
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/* Responses */
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guint *key = g_malloc(sizeof(guint));
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sip_response_code_t *sc;
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/* Look up response code in hash table */
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*key = value->response_code;
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sc = g_hash_table_lookup(sp->hash_responses, key);
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if (sc==NULL)
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{
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/* Non-standard status code ; we classify it as others
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* in the relevant category
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* (Informational,Success,Redirection,Client Error,Server Error,Global Failure)
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*/
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int i = value->response_code;
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if ((i<100) || (i>=700))
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{
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/* Forget about crazy values */
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return 0;
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}
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else if (i<200)
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{
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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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{
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*key=299;
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}
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else if (i<400)
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{
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*key=399;
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}
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else if (i<500)
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{
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*key=499;
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}
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else if (i<600)
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{
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*key=599;
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}
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else
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{
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*key = 699;
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}
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/* Now look up this fallback code to get its text description */
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sc = g_hash_table_lookup(sp->hash_responses, key);
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if (sc==NULL)
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{
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return 0;
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}
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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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{
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/* Requests */
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sip_request_method_t *sc;
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/* Look up the request method in the table */
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sc = g_hash_table_lookup(sp->hash_requests, value->request_method);
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if (sc == NULL)
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{
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/* First of this type. Create structure and initialise */
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sc=g_malloc(sizeof(sip_request_method_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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/* Insert it into request table */
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g_hash_table_insert(sp->hash_requests, sc->response, sc);
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}
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else
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{
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/* Already existed, just update count for that method */
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sc->packets++;
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}
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/* g_free(value->request_method); */
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}
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else
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{
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/* No request method set. Just ignore */
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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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sipstat_draw(void *psp )
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{
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sipstat_t *sp=psp;
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printf("\n");
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printf("===================================================================\n");
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if (sp->filter == NULL)
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printf("SIP Statistics\n");
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else
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printf("SIP Statistics with filter %s\n", sp->filter);
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printf("\nNumber of SIP messages: %d", sp->packets);
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printf("\nNumber of resent SIP messages: %d\n", sp->resent_packets);
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printf( "\n* SIP Status Codes in reply packets\n");
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g_hash_table_foreach( sp->hash_responses, (GHFunc)sip_draw_hash_responses,
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" SIP %3d %-15s : %5d Packets\n");
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printf("\n* List of SIP Request methods\n");
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g_hash_table_foreach( sp->hash_requests, (GHFunc)sip_draw_hash_requests,
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" %-15s : %5d Packets\n");
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printf("===================================================================\n");
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}
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static void
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sipstat_init(const char *optarg, void* userdata _U_)
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{
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sipstat_t *sp;
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const char *filter=NULL;
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GString *error_string;
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if (strncmp (optarg, "sip,stat,", 9) == 0){
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filter=optarg+9;
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} else {
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filter=NULL;
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}
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sp = g_malloc( sizeof(sipstat_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( sip_status, (GHFunc)sip_reset_hash_responses, NULL);*/
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error_string = register_tap_listener(
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"sip",
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sp,
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filter,
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sipstat_reset,
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sipstat_packet,
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sipstat_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, "tethereal: Couldn't register sip,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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sp->packets = 0;
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sp->resent_packets = 0;
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sip_init_hash(sp);
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}
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void
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register_tap_listener_sipstat(void)
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{
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register_stat_cmd_arg("sip,stat", sipstat_init,NULL);
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}
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