tap-camelcounter.c

   1 /* tap_camelcounter.c
   2  * camel message counter for tshark
   3  * Copyright 2006 Florent DROUIN
   4  * This part of code is extracted from tap-h225counter.c from Lars Roland
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <stdio.h>
  30
  31 #ifdef HAVE_SYS_TYPES_H
  32 # include <sys/types.h>
  33 #endif
  34
  35 #include <string.h>
  36 #include "epan/packet_info.h"
  37 #include "epan/tap.h"
  38 #include "epan/value_string.h"
  39 #include "register.h"
  40 #include "epan/stat_cmd_args.h"
  41 #include "epan/camel-persistentdata.h"
  42
  43 void register_tap_listener_camelcounter(void);
  44
  45 /* used to keep track of the statistics for an entire program interface */
  46 struct camelcounter_t {
  47   char *filter;
  48   guint32 camel_msg[camel_MAX_NUM_OPR_CODES];
  49 };
  50
  51
  52 static void camelcounter_reset(void *phs)
  53 {
  54   struct camelcounter_t * p_counter= ( struct camelcounter_t *) phs;
  55   memset(p_counter,0,sizeof(struct camelcounter_t));
  56 }
  57
  58 static int camelcounter_packet(void *phs,
  59                                packet_info *pinfo _U_,
  60                                epan_dissect_t *edt _U_,
  61                                const void *phi)
  62 {
  63   struct camelcounter_t * p_counter =(struct camelcounter_t *)phs;
  64   const struct camelsrt_info_t * pi=phi;
  65   if (pi->opcode != 255)
  66     p_counter->camel_msg[pi->opcode]++;
  67
  68   return 1;
  69 }
  70
  71
  72 static void camelcounter_draw(void *phs)
  73 {
  74   struct camelcounter_t * p_counter= (struct camelcounter_t *)phs;
  75   int i;
  76   printf("\n");
  77   printf("CAMEL Message and Response Status Counter:\n");
  78   printf("------------------------------------------\n");
  79
  80   for(i=0;i<camel_MAX_NUM_OPR_CODES;i++) {
  81     /* Message counter */
  82     if(p_counter->camel_msg[i]!=0) {
  83       printf("%30s ", val_to_str(i,camel_opr_code_strings,"Unknown message "));
  84       printf("%6d\n", p_counter->camel_msg[i]);
  85     }
  86   } /* Message Type */
  87   printf("------------------------------------------\n");
  88 }
  89
  90 static void camelcounter_init(const char *optarg, void* userdata _U_)
  91 {
  92   struct camelcounter_t *p_camelcounter;
  93   const char *filter=NULL;
  94   const char *emptyfilter="";
  95   GString *error_string;
  96
  97   if(!strncmp(optarg,"camel,counter,",13)){
  98     filter=optarg+13;
  99   } else {
 100     filter=NULL;
 101   }
 102
 103   p_camelcounter = g_malloc(sizeof(struct camelcounter_t));
 104   if(filter){
 105     p_camelcounter->filter=g_malloc(strlen(filter)+1);
 106     strcpy(p_camelcounter->filter,filter);
 107   } else {
 108     p_camelcounter->filter=NULL;
 109   }
 110
 111   camelcounter_reset(p_camelcounter);
 112
 113   if (filter) {
 114     error_string=register_tap_listener("CAMEL",
 115                                        p_camelcounter,
 116                                        filter,
 117                                        NULL,
 118                                        camelcounter_packet,
 119                                        camelcounter_draw);
 120   } else {
 121     error_string=register_tap_listener("CAMEL",
 122                                        p_camelcounter,
 123                                        emptyfilter,
 124                                        NULL,
 125                                        camelcounter_packet,
 126                                        camelcounter_draw);
 127   }
 128
 129   if(error_string){
 130     /* error, we failed to attach to the tap. clean up */
 131     g_free(p_camelcounter->filter);
 132     g_free(p_camelcounter);
 133
 134     fprintf(stderr, "tshark: Couldn't register camel,counter tap: %s\n",
 135             error_string->str);
 136     g_string_free(error_string, TRUE);
 137     exit(1);
 138   }
 139 }
 140
 141
 142 void  /* Next line mandatory */
 143 register_tap_listener_camelcounter(void)
 144 {
 145   register_stat_cmd_arg("camel,counter", camelcounter_init, NULL);
 146 }