tap-h225counter.c

   1 /* tap_h225counter.c
   2  * h225 message counter for wireshark
   3  * Copyright 2003 Lars Roland
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  */
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <stdio.h>
  31
  32 #ifdef HAVE_SYS_TYPES_H
  33 # include <sys/types.h>
  34 #endif
  35
  36 #include <string.h>
  37 #include "epan/packet.h"
  38 #include "epan/packet_info.h"
  39 #include <epan/tap.h>
  40 #include <epan/stat_cmd_args.h>
  41 #include "epan/value_string.h"
  42 #include <epan/dissectors/packet-h225.h>
  43
  44 /* following values represent the size of their valuestring arrays */
  45
  46 #define RAS_MSG_TYPES 33
  47 #define CS_MSG_TYPES 13
  48
  49 #define GRJ_REASONS 8
  50 #define RRJ_REASONS 18
  51 #define URQ_REASONS 6
  52 #define URJ_REASONS 6
  53 #define ARJ_REASONS 22
  54 #define BRJ_REASONS 8
  55 #define DRQ_REASONS 3
  56 #define DRJ_REASONS 4
  57 #define LRJ_REASONS 16
  58 #define IRQNAK_REASONS 4
  59 #define REL_CMP_REASONS 26
  60 #define FACILITY_REASONS 11
  61
  62
  63 /* used to keep track of the statistics for an entire program interface */
  64 typedef struct _h225counter_t {
  65         char *filter;
  66         guint32 ras_msg[RAS_MSG_TYPES + 1];
  67         guint32 cs_msg[CS_MSG_TYPES + 1];
  68         guint32 grj_reason[GRJ_REASONS + 1];
  69         guint32 rrj_reason[RRJ_REASONS + 1];
  70         guint32 urq_reason[URQ_REASONS + 1];
  71         guint32 urj_reason[URJ_REASONS + 1];
  72         guint32 arj_reason[ARJ_REASONS + 1];
  73         guint32 brj_reason[BRJ_REASONS + 1];
  74         guint32 drq_reason[DRQ_REASONS + 1];
  75         guint32 drj_reason[DRJ_REASONS + 1];
  76         guint32 lrj_reason[LRJ_REASONS + 1];
  77         guint32 irqnak_reason[IRQNAK_REASONS + 1];
  78         guint32 rel_cmp_reason[REL_CMP_REASONS + 1];
  79         guint32 facility_reason[FACILITY_REASONS + 1];
  80 } h225counter_t;
  81
  82
  83 static void
  84 h225counter_reset(void *phs)
  85 {
  86         h225counter_t *hs=(h225counter_t *)phs;
  87         char *save_filter = hs->filter;
  88
  89         memset(hs, 0, sizeof(h225counter_t));
  90
  91         hs->filter = save_filter;
  92 }
  93
  94 static int
  95 h225counter_packet(void *phs, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *phi)
  96 {
  97         h225counter_t *hs=(h225counter_t *)phs;
  98         const h225_packet_info *pi=phi;
  99
 100         switch (pi->msg_type) {
 101
 102         case H225_RAS:
 103                 if(pi->msg_tag==-1) { /* uninitialized */
 104                         return 0;
 105                 }
 106                 else if (pi->msg_tag >= RAS_MSG_TYPES) { /* unknown */
 107                         hs->ras_msg[RAS_MSG_TYPES]++;
 108                 }
 109                 else {
 110                         hs->ras_msg[pi->msg_tag]++;
 111                 }
 112
 113                 /* Look for reason tag */
 114                 if(pi->reason==-1) { /* uninitialized */
 115                         break;
 116                 }
 117
 118                 switch(pi->msg_tag) {
 119
 120                 case 2: /* GRJ */
 121                         if(pi->reason < GRJ_REASONS)
 122                                 hs->grj_reason[pi->reason]++;
 123                         else
 124                                 hs->grj_reason[GRJ_REASONS]++;
 125                         break;
 126                 case 5: /* RRJ */
 127                         if(pi->reason < RRJ_REASONS)
 128                                 hs->rrj_reason[pi->reason]++;
 129                         else
 130                                 hs->rrj_reason[RRJ_REASONS]++;
 131                         break;
 132                 case 6: /* URQ */
 133                         if(pi->reason < URQ_REASONS)
 134                                 hs->urq_reason[pi->reason]++;
 135                         else
 136                                 hs->urq_reason[URQ_REASONS]++;
 137                         break;
 138                 case 8: /* URJ */
 139                         if(pi->reason < URJ_REASONS)
 140                                 hs->urj_reason[pi->reason]++;
 141                         else
 142                                 hs->urj_reason[URJ_REASONS]++;
 143                         break;
 144                 case 11: /* ARJ */
 145                         if(pi->reason < ARJ_REASONS)
 146                                 hs->arj_reason[pi->reason]++;
 147                         else
 148                                 hs->arj_reason[ARJ_REASONS]++;
 149                         break;
 150                 case 14: /* BRJ */
 151                         if(pi->reason < BRJ_REASONS)
 152                                 hs->brj_reason[pi->reason]++;
 153                         else
 154                                 hs->brj_reason[BRJ_REASONS]++;
 155                         break;
 156                 case 15: /* DRQ */
 157                         if(pi->reason < DRQ_REASONS)
 158                                 hs->drq_reason[pi->reason]++;
 159                         else
 160                                 hs->drq_reason[DRQ_REASONS]++;
 161                         break;
 162                 case 17: /* DRJ */
 163                         if(pi->reason < DRJ_REASONS)
 164                                 hs->drj_reason[pi->reason]++;
 165                         else
 166                                 hs->drj_reason[DRJ_REASONS]++;
 167                         break;
 168                 case 20: /* LRJ */
 169                         if(pi->reason < LRJ_REASONS)
 170                                 hs->lrj_reason[pi->reason]++;
 171                         else
 172                                 hs->lrj_reason[LRJ_REASONS]++;
 173                         break;
 174                 case 29: /* IRQ Nak */
 175                         if(pi->reason < IRQNAK_REASONS)
 176                                 hs->irqnak_reason[pi->reason]++;
 177                         else
 178                                 hs->irqnak_reason[IRQNAK_REASONS]++;
 179                         break;
 180
 181                 default:
 182                         /* do nothing */
 183                         break;
 184                 }
 185
 186                 break;
 187
 188         case H225_CS:
 189                 if(pi->msg_tag==-1) { /* uninitialized */
 190                         return 0;
 191                 }
 192                 else if (pi->msg_tag >= CS_MSG_TYPES) { /* unknown */
 193                         hs->cs_msg[CS_MSG_TYPES]++;
 194                 }
 195                 else {
 196                         hs->cs_msg[pi->msg_tag]++;
 197                 }
 198
 199                 /* Look for reason tag */
 200                 if(pi->reason==-1) { /* uninitialized */
 201                         break;
 202                 }
 203
 204                 switch(pi->msg_tag) {
 205
 206                 case 5: /* ReleaseComplete */
 207                         if(pi->reason < REL_CMP_REASONS)
 208                                 hs->rel_cmp_reason[pi->reason]++;
 209                         else
 210                                 hs->rel_cmp_reason[REL_CMP_REASONS]++;
 211                         break;
 212                 case 6: /* Facility */
 213                         if(pi->reason < FACILITY_REASONS)
 214                                 hs->facility_reason[pi->reason]++;
 215                         else
 216                                 hs->facility_reason[FACILITY_REASONS]++;
 217                         break;
 218                 default:
 219                         /* do nothing */
 220                         break;
 221                 }
 222
 223                 break;
 224
 225         default:
 226                 return 0;
 227         }
 228
 229         return 1;
 230 }
 231
 232
 233 static void
 234 h225counter_draw(void *phs)
 235 {
 236         h225counter_t *hs=(h225counter_t *)phs;
 237         int i,j;
 238
 239         printf("================== H225 Message and Reason Counter ==================\n");
 240         printf("RAS-Messages:\n");
 241         for(i=0;i<=RAS_MSG_TYPES;i++) {
 242                 if(hs->ras_msg[i]!=0) {
 243                         printf("  %s : %u\n", val_to_str(i,h225_RasMessage_vals,"unknown ras-messages  "), hs->ras_msg[i]);
 244                         /* reason counter */
 245                         switch(i) {
 246                         case 2: /* GRJ */
 247                                 for(j=0;j<=GRJ_REASONS;j++) {
 248                                         if(hs->grj_reason[j]!=0) {
 249                                                 printf("    %s : %u\n", val_to_str(j,GatekeeperRejectReason_vals,"unknown reason   "), hs->grj_reason[j]);
 250                                         }
 251                                 }
 252                                 break;
 253                         case 5: /* RRJ */
 254                                 for(j=0;j<=RRJ_REASONS;j++) {
 255                                         if(hs->rrj_reason[j]!=0) {
 256                                                 printf("    %s : %u\n", val_to_str(j,RegistrationRejectReason_vals,"unknown reason   "), hs->rrj_reason[j]);
 257                                         }
 258                                 }
 259                                 break;
 260                         case 6: /* URQ */
 261                                 for(j=0;j<=URQ_REASONS;j++) {
 262                                         if(hs->urq_reason[j]!=0) {
 263                                                 printf("    %s : %u\n", val_to_str(j,UnregRequestReason_vals,"unknown reason   "), hs->urq_reason[j]);
 264                                         }
 265                                 }
 266                                 break;
 267                         case 8: /* URJ */
 268                                 for(j=0;j<=URJ_REASONS;j++) {
 269                                         if(hs->urj_reason[j]!=0) {
 270                                                 printf("    %s : %u\n", val_to_str(j,UnregRejectReason_vals,"unknown reason   "), hs->urj_reason[j]);
 271                                         }
 272                                 }
 273                                 break;
 274                         case 11: /* ARJ */
 275                                 for(j=0;j<=ARJ_REASONS;j++) {
 276                                         if(hs->arj_reason[j]!=0) {
 277                                                 printf("    %s : %u\n", val_to_str(j,AdmissionRejectReason_vals,"unknown reason   "), hs->arj_reason[j]);
 278                                         }
 279                                 }
 280                                 break;
 281                         case 14: /* BRJ */
 282                                 for(j=0;j<=BRJ_REASONS;j++) {
 283                                         if(hs->brj_reason[j]!=0) {
 284                                                 printf("    %s : %u\n", val_to_str(j,BandRejectReason_vals,"unknown reason   "), hs->brj_reason[j]);
 285                                         }
 286                                 }
 287                                 break;
 288                         case 15: /* DRQ */
 289                                 for(j=0;j<=DRQ_REASONS;j++) {
 290                                         if(hs->drq_reason[j]!=0) {
 291                                                 printf("    %s : %u\n", val_to_str(j,DisengageReason_vals,"unknown reason   "), hs->drq_reason[j]);
 292                                         }
 293                                 }
 294                                 break;
 295                         case 17: /* DRJ */
 296                                 for(j=0;j<=DRJ_REASONS;j++) {
 297                                         if(hs->drj_reason[j]!=0) {
 298                                                 printf("    %s : %u\n", val_to_str(j,DisengageRejectReason_vals,"unknown reason   "), hs->drj_reason[j]);
 299                                         }
 300                                 }
 301                                 break;
 302                         case 20: /* LRJ */
 303                                 for(j=0;j<=LRJ_REASONS;j++) {
 304                                         if(hs->lrj_reason[j]!=0) {
 305                                                 printf("    %s : %u\n", val_to_str(j,LocationRejectReason_vals,"unknown reason   "), hs->lrj_reason[j]);
 306                                         }
 307                                 }
 308                                 break;
 309                         case 29: /* IRQNak */
 310                                 for(j=0;j<=IRQNAK_REASONS;j++) {
 311                                         if(hs->irqnak_reason[j]!=0) {
 312                                                 printf("    %s : %u\n", val_to_str(j,InfoRequestNakReason_vals,"unknown reason   "), hs->irqnak_reason[j]);
 313                                         }
 314                                 }
 315                                 break;
 316                         default:
 317                                 break;
 318                         }
 319                         /* end of reason counter*/
 320                 }
 321         }
 322         printf("Call Signalling:\n");
 323         for(i=0;i<=CS_MSG_TYPES;i++) {
 324                 if(hs->cs_msg[i]!=0) {
 325                         printf("  %s : %u\n", val_to_str(i,T_h323_message_body_vals,"unknown cs-messages   "), hs->cs_msg[i]);
 326                         /* reason counter */
 327                         switch(i) {
 328                         case 5: /* ReleaseComplete */
 329                                 for(j=0;j<=REL_CMP_REASONS;j++) {
 330                                         if(hs->rel_cmp_reason[j]!=0) {
 331                                                 printf("    %s : %u\n", val_to_str(j,h225_ReleaseCompleteReason_vals,"unknown reason   "), hs->rel_cmp_reason[j]);
 332                                         }
 333                                 }
 334                                 break;
 335                         case 6: /* Facility */
 336                                 for(j=0;j<=FACILITY_REASONS;j++) {
 337                                         if(hs->facility_reason[j]!=0) {
 338                                                 printf("    %s : %u\n", val_to_str(j,FacilityReason_vals,"unknown reason   "), hs->facility_reason[j]);
 339                                         }
 340                                 }
 341                                 break;
 342                         default:
 343                                 break;
 344                         }
 345                 }
 346         }
 347         printf("=====================================================================\n");
 348 }
 349
 350
 351 static void
 352 h225counter_init(const char *optarg, void* userdata _U_)
 353 {
 354         h225counter_t *hs;
 355         GString *error_string;
 356
 357         hs = g_malloc(sizeof(h225counter_t));
 358         if(!strncmp(optarg,"h225,counter,",13)){
 359                 hs->filter=g_strdup(optarg+13);
 360         } else {
 361                 hs->filter=NULL;
 362         }
 363
 364         h225counter_reset(hs);
 365
 366         error_string=register_tap_listener("h225", hs, hs->filter, 0, NULL, h225counter_packet, h225counter_draw);
 367         if(error_string){
 368                 /* error, we failed to attach to the tap. clean up */
 369                 g_free(hs->filter);
 370                 g_free(hs);
 371
 372                 fprintf(stderr, "tshark: Couldn't register h225,counter tap: %s\n",
 373                     error_string->str);
 374                 g_string_free(error_string, TRUE);
 375                 exit(1);
 376         }
 377 }
 378
 379
 380 void
 381 register_tap_listener_h225counter(void)
 382 {
 383         register_stat_cmd_arg("h225,counter", h225counter_init,NULL);
 384 }