ui/cli/tap-sctpchunkstat.c

   1 /* tap_sctpchunkstat.c
   2  * SCTP chunk counter for wireshark
   3  * Copyright 2005 Oleg Terletsky <oleg.terletsky@comverse.com>
   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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <stdio.h>
  31
  32 #include <string.h>
  33 #include "epan/packet_info.h"
  34 #include "epan/addr_resolv.h"
  35 #include <epan/tap.h>
  36 #include <epan/stat_cmd_args.h>
  37 #include "epan/value_string.h"
  38 #include <epan/dissectors/packet-sctp.h>
  39 #include <epan/to_str.h>
  40
  41 typedef struct sctp_ep {
  42         struct sctp_ep* next;
  43         address src;
  44         address dst;
  45         guint16 sport;
  46         guint16 dport;
  47         guint32 chunk_count[256];
  48 } sctp_ep_t;
  49
  50
  51 /* used to keep track of the statistics for an entire program interface */
  52 typedef struct _sctpstat_t {
  53         char*      filter;
  54         guint32    number_of_packets;
  55         sctp_ep_t* ep_list;
  56 } sctpstat_t;
  57
  58
  59 #define SCTP_DATA_CHUNK_ID               0
  60 #define SCTP_INIT_CHUNK_ID               1
  61 #define SCTP_INIT_ACK_CHUNK_ID           2
  62 #define SCTP_SACK_CHUNK_ID               3
  63 #define SCTP_HEARTBEAT_CHUNK_ID          4
  64 #define SCTP_HEARTBEAT_ACK_CHUNK_ID      5
  65 #define SCTP_ABORT_CHUNK_ID              6
  66 #define SCTP_SHUTDOWN_CHUNK_ID           7
  67 #define SCTP_SHUTDOWN_ACK_CHUNK_ID       8
  68 #define SCTP_ERROR_CHUNK_ID              9
  69 #define SCTP_COOKIE_ECHO_CHUNK_ID       10
  70 #define SCTP_COOKIE_ACK_CHUNK_ID        11
  71 #define SCTP_ECNE_CHUNK_ID              12
  72 #define SCTP_CWR_CHUNK_ID               13
  73 #define SCTP_SHUTDOWN_COMPLETE_CHUNK_ID 14
  74 #define SCTP_AUTH_CHUNK_ID            0x16
  75 #define SCTP_ASCONF_ACK_CHUNK_ID      0x80
  76 #define SCTP_PKTDROP_CHUNK_ID         0x81
  77 #define SCTP_FORWARD_TSN_CHUNK_ID     0xC0
  78 #define SCTP_ASCONF_CHUNK_ID          0xC1
  79 #define SCTP_IETF_EXT                 0xFF
  80
  81 #define CHUNK_TYPE_OFFSET 0
  82 #define CHUNK_TYPE(x)(tvb_get_guint8((x), CHUNK_TYPE_OFFSET))
  83
  84 static void
  85 sctpstat_reset(void *phs)
  86 {
  87         sctpstat_t* sctp_stat = (sctpstat_t *)phs;
  88         sctp_ep_t* list = (sctp_ep_t*)sctp_stat->ep_list;
  89         sctp_ep_t* tmp = NULL;
  90         guint16 chunk_type;
  91
  92         if(!list)
  93                 return;
  94
  95         for(tmp = list; tmp ; tmp=tmp->next)
  96                 for(chunk_type = 0; chunk_type < 256; chunk_type++)
  97                         tmp->chunk_count[chunk_type] = 0;
  98
  99         sctp_stat->number_of_packets = 0;
 100 }
 101
 102
 103 static sctp_ep_t*
 104 alloc_sctp_ep(const struct _sctp_info *si)
 105 {
 106         sctp_ep_t* ep;
 107         guint16 chunk_type;
 108
 109         if(!si)
 110                 return NULL;
 111
 112         if (!(ep = g_malloc(sizeof(sctp_ep_t))))
 113                 return NULL;
 114
 115         COPY_ADDRESS(&ep->src,&si->ip_src);
 116         COPY_ADDRESS(&ep->dst,&si->ip_dst);
 117         ep->sport = si->sport;
 118         ep->dport = si->dport;
 119         ep->next = NULL;
 120         for(chunk_type = 0; chunk_type < 256; chunk_type++)
 121                 ep->chunk_count[chunk_type] = 0;
 122         return ep;
 123 }
 124
 125
 126
 127
 128 static int
 129 sctpstat_packet(void *phs, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *phi)
 130 {
 131
 132         sctpstat_t *hs=(sctpstat_t *)phs;
 133         sctp_ep_t *tmp = NULL, *te = NULL;
 134         const struct _sctp_info *si = (const struct _sctp_info *) phi;
 135         guint32 tvb_number;
 136         guint8 chunk_type;
 137
 138         if (!hs)
 139                 return (0);
 140
 141         hs->number_of_packets++;
 142
 143         if(!hs->ep_list) {
 144                 hs->ep_list = alloc_sctp_ep(si);
 145                 te = hs->ep_list;
 146         } else {
 147                 for(tmp=hs->ep_list ; tmp ; tmp=tmp->next)
 148                 {
 149                         if((!CMP_ADDRESS(&tmp->src,&si->ip_src)) &&
 150                            (!CMP_ADDRESS(&tmp->dst,&si->ip_dst)) &&
 151                            (tmp->sport == si->sport) &&
 152                            (tmp->dport == si->dport))
 153                         {
 154                                 te = tmp;
 155                                 break;
 156                         }
 157                 }
 158                 if(!te) {
 159                         if ((te = alloc_sctp_ep(si))) {
 160                                 te->next = hs->ep_list;
 161                                 hs->ep_list = te;
 162                         }
 163                 }
 164         }
 165
 166         if(!te)
 167                 return (0);
 168
 169
 170         if (si->number_of_tvbs > 0) {
 171                 chunk_type = CHUNK_TYPE(si->tvb[0]);
 172                 if ((chunk_type == SCTP_INIT_CHUNK_ID) ||
 173                     (chunk_type == SCTP_INIT_ACK_CHUNK_ID)) {
 174                         te->chunk_count[chunk_type]++;
 175                 } else {
 176                         for(tvb_number = 0; tvb_number < si->number_of_tvbs; tvb_number++)
 177                                 te->chunk_count[CHUNK_TYPE(si->tvb[tvb_number])]++;
 178                 }
 179         }
 180         return (1);
 181 }
 182
 183
 184 static void
 185 sctpstat_draw(void *phs)
 186 {
 187         sctpstat_t *hs=(sctpstat_t *)phs;
 188         sctp_ep_t* list = hs->ep_list, *tmp;
 189
 190         printf("-------------------------------------------- SCTP Statistics --------------------------------------------------------------------------\n");
 191         printf("|  Total packets RX/TX %u\n", hs->number_of_packets);
 192         printf("---------------------------------------------------------------------------------------------------------------------------------------\n");
 193         printf("|   Source IP   |PortA|    Dest. IP   |PortB|  DATA  |  SACK  |  HBEAT |HBEATACK|  INIT  | INITACK| COOKIE |COOKIACK| ABORT  |  ERROR |\n");
 194         printf("---------------------------------------------------------------------------------------------------------------------------------------\n");
 195
 196         for(tmp = list ; tmp ; tmp=tmp->next) {
 197                 printf("|%15s|%5u|%15s|%5u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|\n",
 198                        ep_address_to_str(&tmp->src),tmp->sport,
 199                        ep_address_to_str(&tmp->dst),tmp->dport,
 200                        tmp->chunk_count[SCTP_DATA_CHUNK_ID],
 201                        tmp->chunk_count[SCTP_SACK_CHUNK_ID],
 202                        tmp->chunk_count[SCTP_HEARTBEAT_CHUNK_ID],
 203                        tmp->chunk_count[SCTP_HEARTBEAT_ACK_CHUNK_ID],
 204                        tmp->chunk_count[SCTP_INIT_CHUNK_ID],
 205                        tmp->chunk_count[SCTP_INIT_ACK_CHUNK_ID],
 206                        tmp->chunk_count[SCTP_COOKIE_ECHO_CHUNK_ID],
 207                        tmp->chunk_count[SCTP_COOKIE_ACK_CHUNK_ID],
 208                        tmp->chunk_count[SCTP_ABORT_CHUNK_ID],
 209                        tmp->chunk_count[SCTP_ERROR_CHUNK_ID]);
 210         }
 211         printf("---------------------------------------------------------------------------------------------------------------------------------------\n");
 212 }
 213
 214
 215 static void
 216 sctpstat_init(const char *optarg, void* userdata _U_)
 217 {
 218         sctpstat_t *hs;
 219         GString *error_string;
 220
 221         hs = (sctpstat_t *)g_malloc(sizeof(sctpstat_t));
 222         if(!strncmp(optarg,"sctp,stat,",11)){
 223                 hs->filter=g_strdup(optarg+11);
 224         } else {
 225                 hs->filter=NULL;
 226         }
 227         hs->ep_list = NULL;
 228         hs->number_of_packets = 0;
 229
 230         sctpstat_reset(hs);
 231
 232         error_string=register_tap_listener("sctp", hs, hs->filter, 0, NULL, sctpstat_packet, sctpstat_draw);
 233         if(error_string){
 234                 /* error, we failed to attach to the tap. clean up */
 235                 g_free(hs->filter);
 236                 g_free(hs);
 237
 238                 fprintf(stderr, "tshark: Couldn't register sctp,stat tap: %s\n",
 239                     error_string->str);
 240                 g_string_free(error_string, TRUE);
 241                 exit(1);
 242         }
 243 }
 244
 245
 246 void
 247 register_tap_listener_sctpstat(void)
 248 {
 249         register_stat_cmd_arg("sctp,stat", sctpstat_init,NULL);
 250 }