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