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 "epan/stat_cmd_args.h"
  44 #include "epan/asn1.h"
  45 #include "epan/camel-persistentdata.h"
  46
  47 void register_tap_listener_camelcounter(void);
  48
  49 /* used to keep track of the statistics for an entire program interface */
  50 struct camelcounter_t {
  51   char *filter;
  52   guint32 camel_msg[camel_MAX_NUM_OPR_CODES];
  53 };
  54
  55
  56 static void camelcounter_reset(void *phs)
  57 {
  58   struct camelcounter_t * p_counter= ( struct camelcounter_t *) phs;
  59   memset(p_counter,0,sizeof(struct camelcounter_t));
  60 }
  61
  62 static int camelcounter_packet(void *phs,
  63                                packet_info *pinfo _U_,
  64                                epan_dissect_t *edt _U_,
  65                                const void *phi)
  66 {
  67   struct camelcounter_t * p_counter =(struct camelcounter_t *)phs;
  68   const struct camelsrt_info_t * pi=phi;
  69   if (pi->opcode != 255)
  70     p_counter->camel_msg[pi->opcode]++;
  71
  72   return 1;
  73 }
  74
  75
  76 static void camelcounter_draw(void *phs)
  77 {
  78   struct camelcounter_t * p_counter= (struct camelcounter_t *)phs;
  79   int i;
  80   printf("\n");
  81   printf("CAMEL Message and Response Status Counter:\n");
  82   printf("------------------------------------------\n");
  83
  84   for(i=0;i<camel_MAX_NUM_OPR_CODES;i++) {
  85     /* Message counter */
  86     if(p_counter->camel_msg[i]!=0) {
  87       printf("%30s ", val_to_str(i,camel_opr_code_strings,"Unknown message "));
  88       printf("%6d\n", p_counter->camel_msg[i]);
  89     }
  90   } /* Message Type */
  91   printf("------------------------------------------\n");
  92 }
  93
  94 static void camelcounter_init(const char *optarg, void* userdata _U_)
  95 {
  96   struct camelcounter_t *p_camelcounter;
  97   GString *error_string;
  98
  99   p_camelcounter = g_malloc(sizeof(struct camelcounter_t));
 100   if(!strncmp(optarg,"camel,counter,",13)){
 101     p_camelcounter->filter=g_strdup(optarg+13);
 102   } else {
 103     p_camelcounter->filter=NULL;
 104   }
 105
 106   camelcounter_reset(p_camelcounter);
 107
 108   error_string=register_tap_listener("CAMEL",
 109                                      p_camelcounter,
 110                                      p_camelcounter->filter,
 111                                      0,
 112                                      NULL,
 113                                      camelcounter_packet,
 114                                      camelcounter_draw);
 115
 116   if(error_string){
 117     /* error, we failed to attach to the tap. clean up */
 118     g_free(p_camelcounter->filter);
 119     g_free(p_camelcounter);
 120
 121     fprintf(stderr, "tshark: Couldn't register camel,counter tap: %s\n",
 122             error_string->str);
 123     g_string_free(error_string, TRUE);
 124     exit(1);
 125   }
 126 }
 127
 128
 129 void  /* Next line mandatory */
 130 register_tap_listener_camelcounter(void)
 131 {
 132   register_stat_cmd_arg("camel,counter", camelcounter_init, NULL);
 133 }