forked from osmocom/wireshark
287 lines
7.2 KiB
C
287 lines
7.2 KiB
C
/* tap-rpcstat.c
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* wspstat 2003 Jean-Michel FAYARD
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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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/* This module provides WSP statistics to tshark.
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* It is only used by tshark and not wireshark
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*
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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 <epan/dissectors/packet-wsp.h>
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/* used to keep track of the stats for a specific PDU type*/
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typedef struct _wsp_pdu_t {
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const gchar *type;
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guint32 packets;
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} wsp_pdu_t;
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/* used to keep track of SRT statistics */
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typedef struct _wsp_status_code_t {
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const gchar *name;
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guint32 packets;
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} wsp_status_code_t;
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/* used to keep track of the statictics for an entire program interface */
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typedef struct _wsp_stats_t {
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char *filter;
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wsp_pdu_t *pdu_stats;
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guint32 num_pdus;
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GHashTable *hash;
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} wspstat_t;
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static void
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wsp_reset_hash(gchar *key _U_ , wsp_status_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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wsp_print_statuscode(gint *key, wsp_status_code_t *data, char* format)
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{
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if (data && (data->packets!=0))
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printf(format, *key, data->packets ,data->name);
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}
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static void
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wsp_free_hash_table( 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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static void
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wspstat_reset(void *psp)
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{
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wspstat_t *sp=psp;
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guint32 i;
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for(i=1;i<=sp->num_pdus;i++)
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{
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sp->pdu_stats[i].packets=0;
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}
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g_hash_table_foreach( sp->hash, (GHFunc)wsp_reset_hash, NULL);
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}
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/* This callback is invoked whenever the tap system has seen a packet
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* we might be interested in.
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* The function is to be used to only update internal state information
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* in the *tapdata structure, and if there were state changes which requires
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* the window to be redrawn, return 1 and (*draw) will be called sometime
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* later.
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*
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* We didnt apply a filter when we registered so we will be called for
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* ALL packets and not just the ones we are collecting stats for.
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*
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*/
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static gint
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pdut2index(gint pdut)
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{
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if (pdut<=0x09) return pdut;
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if (pdut>=0x40){
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if (pdut <= 0x44){
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return pdut-54;
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} else if (pdut==0x60||pdut==0x61){
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return pdut-81;
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}
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}
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return 0;
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}
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static gint
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index2pdut(gint pdut)
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{
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if (pdut<=0x09)
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return pdut;
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if (pdut<=14)
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return pdut+54;
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if (pdut<=16)
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return pdut+81;
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return 0;
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}
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static int
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wspstat_packet(void *psp, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *pri)
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{
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wspstat_t *sp=psp;
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const wsp_info_value_t *value=pri;
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gint idx = pdut2index(value->pdut);
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int retour=0;
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if (value->status_code != 0) {
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gint *key=g_malloc( sizeof(gint) );
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wsp_status_code_t *sc;
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*key=value->status_code ;
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sc = g_hash_table_lookup(
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sp->hash,
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key);
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if (!sc) {
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sc = g_malloc( sizeof(wsp_status_code_t) );
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sc -> packets = 1;
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sc -> name = NULL;
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g_hash_table_insert(
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sp->hash,
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key,
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sc);
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} else {
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sc->packets++;
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}
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retour=1;
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}
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if (idx!=0) {
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sp->pdu_stats[ idx ].packets++;
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retour = 1;
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}
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return retour;
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}
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/* This callback is used when tshark wants us to draw/update our
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* data to the output device. Since this is tshark only output is
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* stdout.
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* TShark will only call this callback once, which is when tshark has
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* finished reading all packets and exists.
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* If used with wireshark this may be called any time, perhaps once every 3
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* seconds or so.
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* This function may even be called in parallell with (*reset) or (*draw)
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* so make sure there are no races. The data in the rpcstat_t can thus change
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* beneath us. Beware.
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*/
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static void
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wspstat_draw(void *psp)
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{
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wspstat_t *sp=psp;
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guint32 i;
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printf("\n");
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printf("===================================================================\n");
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printf("WSP Statistics:\n");
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printf("%-23s %9s || %-23s %9s\n","PDU Type", "Packets", "PDU Type", "Packets");
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for(i=1; i<= ((sp->num_pdus+1)/2) ; i++)
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{
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guint32 ii=i+sp->num_pdus/2;
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printf("%-23s %9d", sp->pdu_stats[i ].type, sp->pdu_stats[i ].packets);
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printf(" || ");
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if (ii< (sp->num_pdus) )
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printf("%-23s %9d\n", sp->pdu_stats[ii].type, sp->pdu_stats[ii].packets);
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else
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printf("\n");
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}
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printf("\nStatus code in reply packets\n");
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printf( "Status Code Packets Description\n");
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g_hash_table_foreach( sp->hash, (GHFunc) wsp_print_statuscode,
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" 0x%02X %9d %s\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 wspstat.
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* program and version are whick onc-rpc program/version we want to
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* collect statistics for.
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* This function is called from tshark when it parses the -z wsp, arguments
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* and it creates a new instance to store statistics in and registers this
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* new instance for the wsp tap.
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*/
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static void
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wspstat_init(const char *optarg, void* userdata _U_)
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{
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wspstat_t *sp;
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const char *filter=NULL;
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guint32 i;
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GString *error_string;
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wsp_status_code_t *sc;
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const value_string *wsp_vals_status_p;
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if (!strncmp (optarg, "wsp,stat," , 9)){
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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(wspstat_t) );
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sp->hash = g_hash_table_new( g_int_hash, g_int_equal);
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wsp_vals_status_p = VALUE_STRING_EXT_VS_P(&wsp_vals_status_ext);
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for (i=0 ; wsp_vals_status_p[i].strptr ; i++ )
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{
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gint *key;
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sc=g_malloc( sizeof(wsp_status_code_t) );
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key=g_malloc( sizeof(gint) );
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sc->packets=0;
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sc->name=wsp_vals_status_p[i].strptr;
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*key=wsp_vals_status_p[i].value;
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g_hash_table_insert(
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sp->hash,
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key,
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sc);
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}
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sp->num_pdus = 16;
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sp->pdu_stats=g_malloc( (sp->num_pdus+1) * sizeof( wsp_pdu_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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for (i=0;i<sp->num_pdus; i++)
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{
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sp->pdu_stats[i].packets=0;
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sp->pdu_stats[i].type = match_strval_ext( index2pdut( i ), &wsp_vals_pdu_type_ext) ;
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}
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error_string = register_tap_listener(
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"wsp",
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sp,
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filter,
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0,
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wspstat_reset,
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wspstat_packet,
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wspstat_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->pdu_stats);
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g_free(sp->filter);
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g_free(sp);
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g_hash_table_foreach( sp->hash, (GHFunc) wsp_free_hash_table, NULL ) ;
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g_hash_table_destroy( sp->hash );
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fprintf(stderr, "tshark: Couldn't register wsp,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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}
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void
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register_tap_listener_wspstat(void)
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{
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register_stat_cmd_arg("wsp,stat,", wspstat_init,NULL);
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}
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