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.h"
  37 #include "epan/packet_info.h"
  38 #include "epan/tap.h"
  39 #include "epan/value_string.h"
  40 #include "register.h"
  41 #include "epan/stat_cmd_args.h"
  42 #include "epan/asn1.h"
  43 #include "epan/camel-persistentdata.h"
  44
  45 void register_tap_listener_camelcounter(void);
  46
  47 /* used to keep track of the statistics for an entire program interface */
  48 struct camelcounter_t {
  49   char *filter;
  50   guint32 camel_msg[camel_MAX_NUM_OPR_CODES];
  51 };
  52
  53
  54 static void camelcounter_reset(void *phs)
  55 {
  56   struct camelcounter_t * p_counter= ( struct camelcounter_t *) phs;
  57   memset(p_counter,0,sizeof(struct camelcounter_t));
  58 }
  59
  60 static int camelcounter_packet(void *phs,
  61                                packet_info *pinfo _U_,
  62                                epan_dissect_t *edt _U_,
  63                                const void *phi)
  64 {
  65   struct camelcounter_t * p_counter =(struct camelcounter_t *)phs;
  66   const struct camelsrt_info_t * pi=phi;
  67   if (pi->opcode != 255)
  68     p_counter->camel_msg[pi->opcode]++;
  69
  70   return 1;
  71 }
  72
  73
  74 static void camelcounter_draw(void *phs)
  75 {
  76   struct camelcounter_t * p_counter= (struct camelcounter_t *)phs;
  77   int i;
  78   printf("\n");
  79   printf("CAMEL Message and Response Status Counter:\n");
  80   printf("------------------------------------------\n");
  81
  82   for(i=0;i<camel_MAX_NUM_OPR_CODES;i++) {
  83     /* Message counter */
  84     if(p_counter->camel_msg[i]!=0) {
  85       printf("%30s ", val_to_str(i,camel_opr_code_strings,"Unknown message "));
  86       printf("%6d\n", p_counter->camel_msg[i]);
  87     }
  88   } /* Message Type */
  89   printf("------------------------------------------\n");
  90 }
  91
  92 static void camelcounter_init(const char *optarg, void* userdata _U_)
  93 {
  94   struct camelcounter_t *p_camelcounter;
  95   const char *filter=NULL;
  96   const char *emptyfilter="";
  97   GString *error_string;
  98
  99   if(!strncmp(optarg,"camel,counter,",13)){
 100     filter=optarg+13;
 101   } else {
 102     filter=NULL;
 103   }
 104
 105   p_camelcounter = g_malloc(sizeof(struct camelcounter_t));
 106   if(filter){
 107     p_camelcounter->filter=g_malloc(strlen(filter)+1);
 108     strcpy(p_camelcounter->filter,filter);
 109   } else {
 110     p_camelcounter->filter=NULL;
 111   }
 112
 113   camelcounter_reset(p_camelcounter);
 114
 115   if (filter) {
 116     error_string=register_tap_listener("CAMEL",
 117                                        p_camelcounter,
 118                                        filter,
 119                                        NULL,
 120                                        camelcounter_packet,
 121                                        camelcounter_draw);
 122   } else {
 123     error_string=register_tap_listener("CAMEL",
 124                                        p_camelcounter,
 125                                        emptyfilter,
 126                                        NULL,
 127                                        camelcounter_packet,
 128                                        camelcounter_draw);
 129   }
 130
 131   if(error_string){
 132     /* error, we failed to attach to the tap. clean up */
 133     g_free(p_camelcounter->filter);
 134     g_free(p_camelcounter);
 135
 136     fprintf(stderr, "tshark: Couldn't register camel,counter tap: %s\n",
 137             error_string->str);
 138     g_string_free(error_string, TRUE);
 139     exit(1);
 140   }
 141 }
 142
 143
 144 void  /* Next line mandatory */
 145 register_tap_listener_camelcounter(void)
 146 {
 147   register_stat_cmd_arg("camel,counter", camelcounter_init, NULL);
 148 }