tap-camelcounter.c

   1 /* tap_camelcounter.c
   2  * camel message counter for tshark
   3  * Copyright 2006 Florent DROUIN
   4  *
   5  * $Id$
   6  *
   7  * This part of code is extracted from tap-h225counter.c from Lars Roland
   8  *
   9  * Wireshark - Network traffic analyzer
  10  * By Gerald Combs <gerald@wireshark.org>
  11  * Copyright 1998 Gerald Combs
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26  */
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <stdio.h>
  33
  34 #ifdef HAVE_SYS_TYPES_H
  35 # include <sys/types.h>
  36 #endif
  37
  38 #include <string.h>
  39 #include "epan/packet.h"
  40 #include "epan/packet_info.h"
  41 #include "epan/tap.h"
  42 #include "epan/value_string.h"
  43 #include "register.h"
  44 #include "epan/stat_cmd_args.h"
  45 #include "epan/asn1.h"
  46 #include "epan/camel-persistentdata.h"
  47
  48 void register_tap_listener_camelcounter(void);
  49
  50 /* used to keep track of the statistics for an entire program interface */
  51 struct camelcounter_t {
  52   char *filter;
  53   guint32 camel_msg[camel_MAX_NUM_OPR_CODES];
  54 };
  55
  56
  57 static void camelcounter_reset(void *phs)
  58 {
  59   struct camelcounter_t * p_counter= ( struct camelcounter_t *) phs;
  60   memset(p_counter,0,sizeof(struct camelcounter_t));
  61 }
  62
  63 static int camelcounter_packet(void *phs,
  64                                packet_info *pinfo _U_,
  65                                epan_dissect_t *edt _U_,
  66                                const void *phi)
  67 {
  68   struct camelcounter_t * p_counter =(struct camelcounter_t *)phs;
  69   const struct camelsrt_info_t * pi=phi;
  70   if (pi->opcode != 255)
  71     p_counter->camel_msg[pi->opcode]++;
  72
  73   return 1;
  74 }
  75
  76
  77 static void camelcounter_draw(void *phs)
  78 {
  79   struct camelcounter_t * p_counter= (struct camelcounter_t *)phs;
  80   int i;
  81   printf("\n");
  82   printf("CAMEL Message and Response Status Counter:\n");
  83   printf("------------------------------------------\n");
  84
  85   for(i=0;i<camel_MAX_NUM_OPR_CODES;i++) {
  86     /* Message counter */
  87     if(p_counter->camel_msg[i]!=0) {
  88       printf("%30s ", val_to_str(i,camel_opr_code_strings,"Unknown message "));
  89       printf("%6d\n", p_counter->camel_msg[i]);
  90     }
  91   } /* Message Type */
  92   printf("------------------------------------------\n");
  93 }
  94
  95 static void camelcounter_init(const char *optarg, void* userdata _U_)
  96 {
  97   struct camelcounter_t *p_camelcounter;
  98   GString *error_string;
  99
 100   p_camelcounter = g_malloc(sizeof(struct camelcounter_t));
 101   if(!strncmp(optarg,"camel,counter,",13)){
 102     p_camelcounter->filter=g_strdup(optarg+13);
 103   } else {
 104     p_camelcounter->filter=NULL;
 105   }
 106
 107   camelcounter_reset(p_camelcounter);
 108
 109   error_string=register_tap_listener("CAMEL",
 110                                      p_camelcounter,
 111                                      p_camelcounter->filter,
 112                                      0,
 113                                      NULL,
 114                                      camelcounter_packet,
 115                                      camelcounter_draw);
 116
 117   if(error_string){
 118     /* error, we failed to attach to the tap. clean up */
 119     g_free(p_camelcounter->filter);
 120     g_free(p_camelcounter);
 121
 122     fprintf(stderr, "tshark: Couldn't register camel,counter tap: %s\n",
 123             error_string->str);
 124     g_string_free(error_string, TRUE);
 125     exit(1);
 126   }
 127 }
 128
 129
 130 void  /* Next line mandatory */
 131 register_tap_listener_camelcounter(void)
 132 {
 133   register_stat_cmd_arg("camel,counter", camelcounter_init, NULL);
 134 }