/* tap_sctpchunkstat.c * SCTP chunk counter for ethereal * Copyright 2005 Oleg Terletsky * * $Id$ * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #ifdef HAVE_SYS_TYPES_H # include #endif #include #include "epan/packet_info.h" #include "epan/addr_resolv.h" #include #include #include "epan/value_string.h" #include "register.h" #include typedef struct sctp_ep { struct sctp_ep* next; address src; address dst; guint16 sport; guint16 dport; guint32 chunk_count[256]; } sctp_ep_t; /* used to keep track of the statistics for an entire program interface */ typedef struct _sctpstat_t { char* filter; guint32 number_of_packets; sctp_ep_t* ep_list; } sctpstat_t; #define SCTP_DATA_CHUNK_ID 0 #define SCTP_INIT_CHUNK_ID 1 #define SCTP_INIT_ACK_CHUNK_ID 2 #define SCTP_SACK_CHUNK_ID 3 #define SCTP_HEARTBEAT_CHUNK_ID 4 #define SCTP_HEARTBEAT_ACK_CHUNK_ID 5 #define SCTP_ABORT_CHUNK_ID 6 #define SCTP_SHUTDOWN_CHUNK_ID 7 #define SCTP_SHUTDOWN_ACK_CHUNK_ID 8 #define SCTP_ERROR_CHUNK_ID 9 #define SCTP_COOKIE_ECHO_CHUNK_ID 10 #define SCTP_COOKIE_ACK_CHUNK_ID 11 #define SCTP_ECNE_CHUNK_ID 12 #define SCTP_CWR_CHUNK_ID 13 #define SCTP_SHUTDOWN_COMPLETE_CHUNK_ID 14 #define SCTP_AUTH_CHUNK_ID 0x16 #define SCTP_ASCONF_ACK_CHUNK_ID 0x80 #define SCTP_PKTDROP_CHUNK_ID 0x81 #define SCTP_FORWARD_TSN_CHUNK_ID 0xC0 #define SCTP_ASCONF_CHUNK_ID 0xC1 #define SCTP_IETF_EXT 0xFF #define CHUNK_TYPE_OFFSET 0 #define CHUNK_TYPE(x)(tvb_get_guint8((x), CHUNK_TYPE_OFFSET)) extern gchar* address_to_str(const address *); static void sctpstat_reset(void *phs) { sctpstat_t* sctp_stat = (sctpstat_t *)phs; sctp_ep_t* list = (sctp_ep_t*)sctp_stat->ep_list; sctp_ep_t* tmp = NULL; guint16 chunk_type; if(!list) return; for(tmp = list; tmp ; tmp=tmp->next) for(chunk_type = 0; chunk_type < 256; chunk_type++) tmp->chunk_count[chunk_type] = 0; sctp_stat->number_of_packets = 0; } sctp_ep_t* alloc_sctp_ep(struct _sctp_info *si) { sctp_ep_t* ep; guint16 chunk_type; if(!si) return NULL; if (!(ep = g_malloc(sizeof(sctp_ep_t)))) return NULL; COPY_ADDRESS(&ep->src,&si->ip_src); COPY_ADDRESS(&ep->dst,&si->ip_dst); ep->sport = si->sport; ep->dport = si->dport; ep->next = NULL; for(chunk_type = 0; chunk_type < 256; chunk_type++) ep->chunk_count[chunk_type] = 0; return ep; } static int sctpstat_packet(void *phs, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *phi) { sctpstat_t *hs=(sctpstat_t *)phs; sctp_ep_t *tmp = NULL, *te = NULL; struct _sctp_info *si = (struct _sctp_info *) phi; guint32 tvb_number; guint8 chunk_type; if (!hs) return (0); hs->number_of_packets++; if(!hs->ep_list) { hs->ep_list = alloc_sctp_ep(si); te = hs->ep_list; } else { for(tmp=hs->ep_list ; tmp ; tmp=tmp->next) { if((!CMP_ADDRESS(&tmp->src,&si->ip_src)) && (!CMP_ADDRESS(&tmp->dst,&si->ip_dst)) && (tmp->sport == si->sport) && (tmp->dport == si->dport)) { te = tmp; break; } } if(!te) { if ((te = alloc_sctp_ep(si))) { te->next = hs->ep_list; hs->ep_list = te; } } } if(!te) return (0); if (si->number_of_tvbs > 0) { chunk_type = CHUNK_TYPE(si->tvb[0]); if ((chunk_type == SCTP_INIT_CHUNK_ID) || (chunk_type == SCTP_INIT_ACK_CHUNK_ID)) { te->chunk_count[chunk_type]++; } else { for(tvb_number = 0; tvb_number < si->number_of_tvbs; tvb_number++) te->chunk_count[CHUNK_TYPE(si->tvb[tvb_number])]++; } } return (1); } static void sctpstat_draw(void *phs) { sctpstat_t *hs=(sctpstat_t *)phs; sctp_ep_t* list = hs->ep_list, *tmp; printf("-------------------------------------------- SCTP Statistics --------------------------------------------------------------------------\n"); printf("| Total packets RX/TX %u\n", hs->number_of_packets); printf("---------------------------------------------------------------------------------------------------------------------------------------\n"); printf("| Source IP |PortA| Dest. IP |PortB| DATA | SACK | HBEAT |HBEATACK| INIT | INITACK| COOKIE |COOKIACK| ABORT | ERROR |\n"); printf("---------------------------------------------------------------------------------------------------------------------------------------\n"); for(tmp = list ; tmp ; tmp=tmp->next) { printf("|%15s|%5u|%15s|%5u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|%8u|\n", address_to_str(&tmp->src),tmp->sport, address_to_str(&tmp->dst),tmp->dport, tmp->chunk_count[SCTP_DATA_CHUNK_ID], tmp->chunk_count[SCTP_SACK_CHUNK_ID], tmp->chunk_count[SCTP_HEARTBEAT_CHUNK_ID], tmp->chunk_count[SCTP_HEARTBEAT_ACK_CHUNK_ID], tmp->chunk_count[SCTP_INIT_CHUNK_ID], tmp->chunk_count[SCTP_INIT_ACK_CHUNK_ID], tmp->chunk_count[SCTP_COOKIE_ECHO_CHUNK_ID], tmp->chunk_count[SCTP_COOKIE_ACK_CHUNK_ID], tmp->chunk_count[SCTP_ABORT_CHUNK_ID], tmp->chunk_count[SCTP_ERROR_CHUNK_ID]); } printf("---------------------------------------------------------------------------------------------------------------------------------------\n"); } static void sctpstat_init(const char *optarg) { sctpstat_t *hs; const char *filter=NULL; GString *error_string; if(!strncmp(optarg,"sctp,stat,",11)){ filter=optarg+11; } else { filter=""; } hs = g_malloc(sizeof(sctpstat_t)); hs->filter=g_malloc(strlen(filter)+1); hs->ep_list = NULL; hs->number_of_packets = 0; strcpy(hs->filter, filter); sctpstat_reset(hs); error_string=register_tap_listener("sctp", hs, filter, NULL, sctpstat_packet, sctpstat_draw); if(error_string){ /* error, we failed to attach to the tap. clean up */ g_free(hs->filter); g_free(hs); fprintf(stderr, "tethereal: Couldn't register sctp,stat tap: %s\n", error_string->str); g_string_free(error_string, TRUE); exit(1); } } void register_tap_listener_sctpstat(void) { register_stat_cmd_arg("sctp,stat", sctpstat_init); }