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_info.h"
  38 #include <epan/tap.h>
  39 #include <epan/stat_cmd_args.h>
  40 #include "epan/value_string.h"
  41 #include "register.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         int i;
  88
  89         for(i=0;i<=RAS_MSG_TYPES;i++) {
  90                 hs->ras_msg[i] = 0;
  91         }
  92         for(i=0;i<=CS_MSG_TYPES;i++) {
  93                 hs->cs_msg[i] = 0;
  94         }
  95         for(i=0;i<=GRJ_REASONS;i++) {
  96                 hs->grj_reason[i] = 0;
  97         }
  98         for(i=0;i<=RRJ_REASONS;i++) {
  99                 hs->rrj_reason[i] = 0;
 100         }
 101         for(i=0;i<=URQ_REASONS;i++) {
 102                 hs->urq_reason[i] = 0;
 103         }
 104         for(i=0;i<=URJ_REASONS;i++) {
 105                 hs->urj_reason[i] = 0;
 106         }
 107         for(i=0;i<=ARJ_REASONS;i++) {
 108                 hs->arj_reason[i] = 0;
 109         }
 110         for(i=0;i<=BRJ_REASONS;i++) {
 111                 hs->brj_reason[i] = 0;
 112         }
 113         for(i=0;i<=DRQ_REASONS;i++) {
 114                 hs->drq_reason[i] = 0;
 115         }
 116         for(i=0;i<=DRJ_REASONS;i++) {
 117                 hs->drj_reason[i] = 0;
 118         }
 119         for(i=0;i<=LRJ_REASONS;i++) {
 120                 hs->lrj_reason[i] = 0;
 121         }
 122         for(i=0;i<=IRQNAK_REASONS;i++) {
 123                 hs->irqnak_reason[i] = 0;
 124         }
 125         for(i=0;i<=REL_CMP_REASONS;i++) {
 126                 hs->rel_cmp_reason[i] = 0;
 127         }
 128         for(i=0;i<=FACILITY_REASONS;i++) {
 129                 hs->facility_reason[i] = 0;
 130         }
 131 }
 132
 133 static int
 134 h225counter_packet(void *phs, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *phi)
 135 {
 136         h225counter_t *hs=(h225counter_t *)phs;
 137         const h225_packet_info *pi=phi;
 138
 139         switch (pi->msg_type) {
 140
 141         case H225_RAS:
 142                 if(pi->msg_tag==-1) { /* uninitialized */
 143                         return 0;
 144                 }
 145                 else if (pi->msg_tag >= RAS_MSG_TYPES) { /* unknown */
 146                         hs->ras_msg[RAS_MSG_TYPES]++;
 147                 }
 148                 else {
 149                         hs->ras_msg[pi->msg_tag]++;
 150                 }
 151
 152                 /* Look for reason tag */
 153                 if(pi->reason==-1) { /* uninitialized */
 154                         break;
 155                 }
 156
 157                 switch(pi->msg_tag) {
 158
 159                 case 2: /* GRJ */
 160                         if(pi->reason < GRJ_REASONS)
 161                                 hs->grj_reason[pi->reason]++;
 162                         else
 163                                 hs->grj_reason[GRJ_REASONS]++;
 164                         break;
 165                 case 5: /* RRJ */
 166                         if(pi->reason < RRJ_REASONS)
 167                                 hs->rrj_reason[pi->reason]++;
 168                         else
 169                                 hs->rrj_reason[RRJ_REASONS]++;
 170                         break;
 171                 case 6: /* URQ */
 172                         if(pi->reason < URQ_REASONS)
 173                                 hs->urq_reason[pi->reason]++;
 174                         else
 175                                 hs->urq_reason[URQ_REASONS]++;
 176                         break;
 177                 case 8: /* URJ */
 178                         if(pi->reason < URJ_REASONS)
 179                                 hs->urj_reason[pi->reason]++;
 180                         else
 181                                 hs->urj_reason[URJ_REASONS]++;
 182                         break;
 183                 case 11: /* ARJ */
 184                         if(pi->reason < ARJ_REASONS)
 185                                 hs->arj_reason[pi->reason]++;
 186                         else
 187                                 hs->arj_reason[ARJ_REASONS]++;
 188                         break;
 189                 case 14: /* BRJ */
 190                         if(pi->reason < BRJ_REASONS)
 191                                 hs->brj_reason[pi->reason]++;
 192                         else
 193                                 hs->brj_reason[BRJ_REASONS]++;
 194                         break;
 195                 case 15: /* DRQ */
 196                         if(pi->reason < DRQ_REASONS)
 197                                 hs->drq_reason[pi->reason]++;
 198                         else
 199                                 hs->drq_reason[DRQ_REASONS]++;
 200                         break;
 201                 case 17: /* DRJ */
 202                         if(pi->reason < DRJ_REASONS)
 203                                 hs->drj_reason[pi->reason]++;
 204                         else
 205                                 hs->drj_reason[DRJ_REASONS]++;
 206                         break;
 207                 case 20: /* LRJ */
 208                         if(pi->reason < LRJ_REASONS)
 209                                 hs->lrj_reason[pi->reason]++;
 210                         else
 211                                 hs->lrj_reason[LRJ_REASONS]++;
 212                         break;
 213                 case 29: /* IRQ Nak */
 214                         if(pi->reason < IRQNAK_REASONS)
 215                                 hs->irqnak_reason[pi->reason]++;
 216                         else
 217                                 hs->irqnak_reason[IRQNAK_REASONS]++;
 218                         break;
 219
 220                 default:
 221                         /* do nothing */
 222                         break;
 223                 }
 224
 225                 break;
 226
 227         case H225_CS:
 228                 if(pi->msg_tag==-1) { /* uninitialized */
 229                         return 0;
 230                 }
 231                 else if (pi->msg_tag >= CS_MSG_TYPES) { /* unknown */
 232                         hs->cs_msg[CS_MSG_TYPES]++;
 233                 }
 234                 else {
 235                         hs->cs_msg[pi->msg_tag]++;
 236                 }
 237
 238                 /* Look for reason tag */
 239                 if(pi->reason==-1) { /* uninitialized */
 240                         break;
 241                 }
 242
 243                 switch(pi->msg_tag) {
 244
 245                 case 5: /* ReleaseComplete */
 246                         if(pi->reason < REL_CMP_REASONS)
 247                                 hs->rel_cmp_reason[pi->reason]++;
 248                         else
 249                                 hs->rel_cmp_reason[REL_CMP_REASONS]++;
 250                         break;
 251                 case 6: /* Facility */
 252                         if(pi->reason < FACILITY_REASONS)
 253                                 hs->facility_reason[pi->reason]++;
 254                         else
 255                                 hs->facility_reason[FACILITY_REASONS]++;
 256                         break;
 257                 default:
 258                         /* do nothing */
 259                         break;
 260                 }
 261
 262                 break;
 263
 264         default:
 265                 return 0;
 266                 break;
 267         }
 268
 269         return 1;
 270 }
 271
 272
 273 static void
 274 h225counter_draw(void *phs)
 275 {
 276         h225counter_t *hs=(h225counter_t *)phs;
 277         int i,j;
 278
 279         printf("================== H225 Message and Reason Counter ==================\n");
 280         printf("RAS-Messages:\n");
 281         for(i=0;i<=RAS_MSG_TYPES;i++) {
 282                 if(hs->ras_msg[i]!=0) {
 283                         printf("  %s : %u\n", val_to_str(i,RasMessage_vals,"unknown ras-messages  "), hs->ras_msg[i]);
 284                         /* reason counter */
 285                         switch(i) {
 286                         case 2: /* GRJ */
 287                                 for(j=0;j<=GRJ_REASONS;j++) {
 288                                         if(hs->grj_reason[j]!=0) {
 289                                                 printf("    %s : %u\n", val_to_str(j,GatekeeperRejectReason_vals,"unknown reason   "), hs->grj_reason[j]);
 290                                         }
 291                                 }
 292                                 break;
 293                         case 5: /* RRJ */
 294                                 for(j=0;j<=RRJ_REASONS;j++) {
 295                                         if(hs->rrj_reason[j]!=0) {
 296                                                 printf("    %s : %u\n", val_to_str(j,RegistrationRejectReason_vals,"unknown reason   "), hs->rrj_reason[j]);
 297                                         }
 298                                 }
 299                                 break;
 300                         case 6: /* URQ */
 301                                 for(j=0;j<=URQ_REASONS;j++) {
 302                                         if(hs->urq_reason[j]!=0) {
 303                                                 printf("    %s : %u\n", val_to_str(j,UnregRequestReason_vals,"unknown reason   "), hs->urq_reason[j]);
 304                                         }
 305                                 }
 306                                 break;
 307                         case 8: /* URJ */
 308                                 for(j=0;j<=URJ_REASONS;j++) {
 309                                         if(hs->urj_reason[j]!=0) {
 310                                                 printf("    %s : %u\n", val_to_str(j,UnregRejectReason_vals,"unknown reason   "), hs->urj_reason[j]);
 311                                         }
 312                                 }
 313                                 break;
 314                         case 11: /* ARJ */
 315                                 for(j=0;j<=ARJ_REASONS;j++) {
 316                                         if(hs->arj_reason[j]!=0) {
 317                                                 printf("    %s : %u\n", val_to_str(j,AdmissionRejectReason_vals,"unknown reason   "), hs->arj_reason[j]);
 318                                         }
 319                                 }
 320                                 break;
 321                         case 14: /* BRJ */
 322                                 for(j=0;j<=BRJ_REASONS;j++) {
 323                                         if(hs->brj_reason[j]!=0) {
 324                                                 printf("    %s : %u\n", val_to_str(j,BandRejectReason_vals,"unknown reason   "), hs->brj_reason[j]);
 325                                         }
 326                                 }
 327                                 break;
 328                         case 15: /* DRQ */
 329                                 for(j=0;j<=DRQ_REASONS;j++) {
 330                                         if(hs->drq_reason[j]!=0) {
 331                                                 printf("    %s : %u\n", val_to_str(j,DisengageReason_vals,"unknown reason   "), hs->drq_reason[j]);
 332                                         }
 333                                 }
 334                                 break;
 335                         case 17: /* DRJ */
 336                                 for(j=0;j<=DRJ_REASONS;j++) {
 337                                         if(hs->drj_reason[j]!=0) {
 338                                                 printf("    %s : %u\n", val_to_str(j,DisengageRejectReason_vals,"unknown reason   "), hs->drj_reason[j]);
 339                                         }
 340                                 }
 341                                 break;
 342                         case 20: /* LRJ */
 343                                 for(j=0;j<=LRJ_REASONS;j++) {
 344                                         if(hs->lrj_reason[j]!=0) {
 345                                                 printf("    %s : %u\n", val_to_str(j,LocationRejectReason_vals,"unknown reason   "), hs->lrj_reason[j]);
 346                                         }
 347                                 }
 348                         case 29: /* IRQNak */
 349                                 for(j=0;j<=IRQNAK_REASONS;j++) {
 350                                         if(hs->irqnak_reason[j]!=0) {
 351                                                 printf("    %s : %u\n", val_to_str(j,InfoRequestNakReason_vals,"unknown reason   "), hs->irqnak_reason[j]);
 352                                         }
 353                                 }
 354                                 break;
 355                         default:
 356                                 break;
 357                         }
 358                         /* end of reason counter*/
 359                 }
 360         }
 361         printf("Call Signalling:\n");
 362         for(i=0;i<=CS_MSG_TYPES;i++) {
 363                 if(hs->cs_msg[i]!=0) {
 364                         printf("  %s : %u\n", val_to_str(i,T_h323_message_body_vals,"unknown cs-messages   "), hs->cs_msg[i]);
 365                         /* reason counter */
 366                         switch(i) {
 367                         case 5: /* ReleaseComplete */
 368                                 for(j=0;j<=REL_CMP_REASONS;j++) {
 369                                         if(hs->rel_cmp_reason[j]!=0) {
 370                                                 printf("    %s : %u\n", val_to_str(j,ReleaseCompleteReason_vals,"unknown reason   "), hs->rel_cmp_reason[j]);
 371                                         }
 372                                 }
 373                                 break;
 374                         case 6: /* Facility */
 375                                 for(j=0;j<=FACILITY_REASONS;j++) {
 376                                         if(hs->facility_reason[j]!=0) {
 377                                                 printf("    %s : %u\n", val_to_str(j,FacilityReason_vals,"unknown reason   "), hs->facility_reason[j]);
 378                                         }
 379                                 }
 380                                 break;
 381                         default:
 382                                 break;
 383                         }
 384                 }
 385         }
 386         printf("=====================================================================\n");
 387 }
 388
 389
 390 static void
 391 h225counter_init(const char *optarg, void* userdata _U_)
 392 {
 393         h225counter_t *hs;
 394         const char *filter=NULL;
 395         GString *error_string;
 396
 397         if(!strncmp(optarg,"h225,counter,",13)){
 398                 filter=optarg+13;
 399         } else {
 400                 filter="";
 401         }
 402
 403         hs = g_malloc(sizeof(h225counter_t));
 404         hs->filter=g_malloc(strlen(filter)+1);
 405         strcpy(hs->filter, filter);
 406
 407         h225counter_reset(hs);
 408
 409         error_string=register_tap_listener("h225", hs, filter, NULL, h225counter_packet, h225counter_draw);
 410         if(error_string){
 411                 /* error, we failed to attach to the tap. clean up */
 412                 g_free(hs->filter);
 413                 g_free(hs);
 414
 415                 fprintf(stderr, "tshark: Couldn't register h225,counter tap: %s\n",
 416                     error_string->str);
 417                 g_string_free(error_string, TRUE);
 418                 exit(1);
 419         }
 420 }
 421
 422
 423 void
 424 register_tap_listener_h225counter(void)
 425 {
 426         register_stat_cmd_arg("h225,counter", h225counter_init,NULL);
 427 }