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 "register.h"
  43 #include <epan/dissectors/packet-h225.h>
  44
  45 /* following values represent the size of their valuestring arrays */
  46
  47 #define RAS_MSG_TYPES 33
  48 #define CS_MSG_TYPES 13
  49
  50 #define GRJ_REASONS 8
  51 #define RRJ_REASONS 18
  52 #define URQ_REASONS 6
  53 #define URJ_REASONS 6
  54 #define ARJ_REASONS 22
  55 #define BRJ_REASONS 8
  56 #define DRQ_REASONS 3
  57 #define DRJ_REASONS 4
  58 #define LRJ_REASONS 16
  59 #define IRQNAK_REASONS 4
  60 #define REL_CMP_REASONS 26
  61 #define FACILITY_REASONS 11
  62
  63
  64 /* used to keep track of the statistics for an entire program interface */
  65 typedef struct _h225counter_t {
  66         char *filter;
  67         guint32 ras_msg[RAS_MSG_TYPES + 1];
  68         guint32 cs_msg[CS_MSG_TYPES + 1];
  69         guint32 grj_reason[GRJ_REASONS + 1];
  70         guint32 rrj_reason[RRJ_REASONS + 1];
  71         guint32 urq_reason[URQ_REASONS + 1];
  72         guint32 urj_reason[URJ_REASONS + 1];
  73         guint32 arj_reason[ARJ_REASONS + 1];
  74         guint32 brj_reason[BRJ_REASONS + 1];
  75         guint32 drq_reason[DRQ_REASONS + 1];
  76         guint32 drj_reason[DRJ_REASONS + 1];
  77         guint32 lrj_reason[LRJ_REASONS + 1];
  78         guint32 irqnak_reason[IRQNAK_REASONS + 1];
  79         guint32 rel_cmp_reason[REL_CMP_REASONS + 1];
  80         guint32 facility_reason[FACILITY_REASONS + 1];
  81 } h225counter_t;
  82
  83
  84 static void
  85 h225counter_reset(void *phs)
  86 {
  87         h225counter_t *hs=(h225counter_t *)phs;
  88         char *save_filter = hs->filter;
  89
  90         memset(hs, 0, sizeof(h225counter_t));
  91
  92         hs->filter = save_filter;
  93 }
  94
  95 static int
  96 h225counter_packet(void *phs, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *phi)
  97 {
  98         h225counter_t *hs=(h225counter_t *)phs;
  99         const h225_packet_info *pi=phi;
 100
 101         switch (pi->msg_type) {
 102
 103         case H225_RAS:
 104                 if(pi->msg_tag==-1) { /* uninitialized */
 105                         return 0;
 106                 }
 107                 else if (pi->msg_tag >= RAS_MSG_TYPES) { /* unknown */
 108                         hs->ras_msg[RAS_MSG_TYPES]++;
 109                 }
 110                 else {
 111                         hs->ras_msg[pi->msg_tag]++;
 112                 }
 113
 114                 /* Look for reason tag */
 115                 if(pi->reason==-1) { /* uninitialized */
 116                         break;
 117                 }
 118
 119                 switch(pi->msg_tag) {
 120
 121                 case 2: /* GRJ */
 122                         if(pi->reason < GRJ_REASONS)
 123                                 hs->grj_reason[pi->reason]++;
 124                         else
 125                                 hs->grj_reason[GRJ_REASONS]++;
 126                         break;
 127                 case 5: /* RRJ */
 128                         if(pi->reason < RRJ_REASONS)
 129                                 hs->rrj_reason[pi->reason]++;
 130                         else
 131                                 hs->rrj_reason[RRJ_REASONS]++;
 132                         break;
 133                 case 6: /* URQ */
 134                         if(pi->reason < URQ_REASONS)
 135                                 hs->urq_reason[pi->reason]++;
 136                         else
 137                                 hs->urq_reason[URQ_REASONS]++;
 138                         break;
 139                 case 8: /* URJ */
 140                         if(pi->reason < URJ_REASONS)
 141                                 hs->urj_reason[pi->reason]++;
 142                         else
 143                                 hs->urj_reason[URJ_REASONS]++;
 144                         break;
 145                 case 11: /* ARJ */
 146                         if(pi->reason < ARJ_REASONS)
 147                                 hs->arj_reason[pi->reason]++;
 148                         else
 149                                 hs->arj_reason[ARJ_REASONS]++;
 150                         break;
 151                 case 14: /* BRJ */
 152                         if(pi->reason < BRJ_REASONS)
 153                                 hs->brj_reason[pi->reason]++;
 154                         else
 155                                 hs->brj_reason[BRJ_REASONS]++;
 156                         break;
 157                 case 15: /* DRQ */
 158                         if(pi->reason < DRQ_REASONS)
 159                                 hs->drq_reason[pi->reason]++;
 160                         else
 161                                 hs->drq_reason[DRQ_REASONS]++;
 162                         break;
 163                 case 17: /* DRJ */
 164                         if(pi->reason < DRJ_REASONS)
 165                                 hs->drj_reason[pi->reason]++;
 166                         else
 167                                 hs->drj_reason[DRJ_REASONS]++;
 168                         break;
 169                 case 20: /* LRJ */
 170                         if(pi->reason < LRJ_REASONS)
 171                                 hs->lrj_reason[pi->reason]++;
 172                         else
 173                                 hs->lrj_reason[LRJ_REASONS]++;
 174                         break;
 175                 case 29: /* IRQ Nak */
 176                         if(pi->reason < IRQNAK_REASONS)
 177                                 hs->irqnak_reason[pi->reason]++;
 178                         else
 179                                 hs->irqnak_reason[IRQNAK_REASONS]++;
 180                         break;
 181
 182                 default:
 183                         /* do nothing */
 184                         break;
 185                 }
 186
 187                 break;
 188
 189         case H225_CS:
 190                 if(pi->msg_tag==-1) { /* uninitialized */
 191                         return 0;
 192                 }
 193                 else if (pi->msg_tag >= CS_MSG_TYPES) { /* unknown */
 194                         hs->cs_msg[CS_MSG_TYPES]++;
 195                 }
 196                 else {
 197                         hs->cs_msg[pi->msg_tag]++;
 198                 }
 199
 200                 /* Look for reason tag */
 201                 if(pi->reason==-1) { /* uninitialized */
 202                         break;
 203                 }
 204
 205                 switch(pi->msg_tag) {
 206
 207                 case 5: /* ReleaseComplete */
 208                         if(pi->reason < REL_CMP_REASONS)
 209                                 hs->rel_cmp_reason[pi->reason]++;
 210                         else
 211                                 hs->rel_cmp_reason[REL_CMP_REASONS]++;
 212                         break;
 213                 case 6: /* Facility */
 214                         if(pi->reason < FACILITY_REASONS)
 215                                 hs->facility_reason[pi->reason]++;
 216                         else
 217                                 hs->facility_reason[FACILITY_REASONS]++;
 218                         break;
 219                 default:
 220                         /* do nothing */
 221                         break;
 222                 }
 223
 224                 break;
 225
 226         default:
 227                 return 0;
 228         }
 229
 230         return 1;
 231 }
 232
 233
 234 static void
 235 h225counter_draw(void *phs)
 236 {
 237         h225counter_t *hs=(h225counter_t *)phs;
 238         int i,j;
 239
 240         printf("================== H225 Message and Reason Counter ==================\n");
 241         printf("RAS-Messages:\n");
 242         for(i=0;i<=RAS_MSG_TYPES;i++) {
 243                 if(hs->ras_msg[i]!=0) {
 244                         printf("  %s : %u\n", val_to_str(i,h225_RasMessage_vals,"unknown ras-messages  "), hs->ras_msg[i]);
 245                         /* reason counter */
 246                         switch(i) {
 247                         case 2: /* GRJ */
 248                                 for(j=0;j<=GRJ_REASONS;j++) {
 249                                         if(hs->grj_reason[j]!=0) {
 250                                                 printf("    %s : %u\n", val_to_str(j,GatekeeperRejectReason_vals,"unknown reason   "), hs->grj_reason[j]);
 251                                         }
 252                                 }
 253                                 break;
 254                         case 5: /* RRJ */
 255                                 for(j=0;j<=RRJ_REASONS;j++) {
 256                                         if(hs->rrj_reason[j]!=0) {
 257                                                 printf("    %s : %u\n", val_to_str(j,RegistrationRejectReason_vals,"unknown reason   "), hs->rrj_reason[j]);
 258                                         }
 259                                 }
 260                                 break;
 261                         case 6: /* URQ */
 262                                 for(j=0;j<=URQ_REASONS;j++) {
 263                                         if(hs->urq_reason[j]!=0) {
 264                                                 printf("    %s : %u\n", val_to_str(j,UnregRequestReason_vals,"unknown reason   "), hs->urq_reason[j]);
 265                                         }
 266                                 }
 267                                 break;
 268                         case 8: /* URJ */
 269                                 for(j=0;j<=URJ_REASONS;j++) {
 270                                         if(hs->urj_reason[j]!=0) {
 271                                                 printf("    %s : %u\n", val_to_str(j,UnregRejectReason_vals,"unknown reason   "), hs->urj_reason[j]);
 272                                         }
 273                                 }
 274                                 break;
 275                         case 11: /* ARJ */
 276                                 for(j=0;j<=ARJ_REASONS;j++) {
 277                                         if(hs->arj_reason[j]!=0) {
 278                                                 printf("    %s : %u\n", val_to_str(j,AdmissionRejectReason_vals,"unknown reason   "), hs->arj_reason[j]);
 279                                         }
 280                                 }
 281                                 break;
 282                         case 14: /* BRJ */
 283                                 for(j=0;j<=BRJ_REASONS;j++) {
 284                                         if(hs->brj_reason[j]!=0) {
 285                                                 printf("    %s : %u\n", val_to_str(j,BandRejectReason_vals,"unknown reason   "), hs->brj_reason[j]);
 286                                         }
 287                                 }
 288                                 break;
 289                         case 15: /* DRQ */
 290                                 for(j=0;j<=DRQ_REASONS;j++) {
 291                                         if(hs->drq_reason[j]!=0) {
 292                                                 printf("    %s : %u\n", val_to_str(j,DisengageReason_vals,"unknown reason   "), hs->drq_reason[j]);
 293                                         }
 294                                 }
 295                                 break;
 296                         case 17: /* DRJ */
 297                                 for(j=0;j<=DRJ_REASONS;j++) {
 298                                         if(hs->drj_reason[j]!=0) {
 299                                                 printf("    %s : %u\n", val_to_str(j,DisengageRejectReason_vals,"unknown reason   "), hs->drj_reason[j]);
 300                                         }
 301                                 }
 302                                 break;
 303                         case 20: /* LRJ */
 304                                 for(j=0;j<=LRJ_REASONS;j++) {
 305                                         if(hs->lrj_reason[j]!=0) {
 306                                                 printf("    %s : %u\n", val_to_str(j,LocationRejectReason_vals,"unknown reason   "), hs->lrj_reason[j]);
 307                                         }
 308                                 }
 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 }