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/* tap-endpoints.c
* endpoints 2014 Michael Mann
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <epan/packet.h>
#include <epan/tap.h>
#include <epan/stat_tap_ui.h>
#include <epan/conversation_table.h>
#include <wsutil/cmdarg_err.h>
#include <ui/cli/tshark-tap.h>
typedef struct _endpoints_t {
const char *type;
const char *filter;
conv_hash_t hash;
} endpoints_t;
static void
endpoints_draw(void *arg)
{
conv_hash_t *hash = (conv_hash_t*)arg;
endpoints_t *iu = (endpoints_t *)hash->user_data;
endpoint_item_t *endpoint;
uint64_t last_frames, max_frames;
unsigned i;
bool display_port = (!strncmp(iu->type, "TCP", 3) || !strncmp(iu->type, "UDP", 3) || !strncmp(iu->type, "SCTP", 4)) ? true : false;
printf("================================================================================\n");
printf("%s Endpoints\n", iu->type);
printf("Filter:%s\n", iu->filter ? iu->filter : "<No Filter>");
printf(" | %sPackets | | Bytes | | Tx Packets | | Tx Bytes | | Rx Packets | | Rx Bytes |\n",
display_port ? "Port || " : "");
max_frames = UINT_MAX;
do {
last_frames = 0;
for (i=0; (iu->hash.conv_array && i < iu->hash.conv_array->len); i++) {
uint64_t tot_frames;
endpoint = &g_array_index(iu->hash.conv_array, endpoint_item_t, i);
tot_frames = endpoint->rx_frames + endpoint->tx_frames;
if ((tot_frames > last_frames) && (tot_frames < max_frames)) {
last_frames = tot_frames;
}
}
for (i=0; (iu->hash.conv_array && i < iu->hash.conv_array->len); i++) {
uint64_t tot_frames;
char *conversation_str, *port_str;
endpoint = &g_array_index(iu->hash.conv_array, endpoint_item_t, i);
tot_frames = endpoint->rx_frames + endpoint->tx_frames;
if (tot_frames == last_frames) {
/* XXX - TODO: make name resolution configurable (through gbl_resolv_flags?) */
conversation_str = get_conversation_address(NULL, &endpoint->myaddress, true);
if (display_port) {
/* XXX - TODO: make port resolution configurable (through gbl_resolv_flags?) */
port_str = get_endpoint_port(NULL, endpoint, true);
printf("%-20s %5s %6" PRIu64 " %9" PRIu64
" %6" PRIu64 " %9" PRIu64 " %6"
PRIu64 " %9" PRIu64 " \n",
conversation_str,
port_str,
endpoint->tx_frames+endpoint->rx_frames, endpoint->tx_bytes+endpoint->rx_bytes,
endpoint->tx_frames, endpoint->tx_bytes,
endpoint->rx_frames, endpoint->rx_bytes);
wmem_free(NULL, port_str);
} else {
printf("%-20s %6" PRIu64 " %9" PRIu64
" %6" PRIu64 " %9" PRIu64 " %6"
PRIu64 " %9" PRIu64 " \n",
/* XXX - TODO: make name resolution configurable (through gbl_resolv_flags?) */
conversation_str,
endpoint->tx_frames+endpoint->rx_frames, endpoint->tx_bytes+endpoint->rx_bytes,
endpoint->tx_frames, endpoint->tx_bytes,
endpoint->rx_frames, endpoint->rx_bytes);
}
wmem_free(NULL, conversation_str);
}
}
max_frames = last_frames;
} while (last_frames);
printf("================================================================================\n");
}
void init_endpoints(struct register_ct *ct, const char *filter)
{
endpoints_t *iu;
GString *error_string;
iu = g_new0(endpoints_t, 1);
iu->type = proto_get_protocol_short_name(find_protocol_by_id(get_conversation_proto_id(ct)));
iu->filter = g_strdup(filter);
iu->hash.user_data = iu;
error_string = register_tap_listener(proto_get_protocol_filter_name(get_conversation_proto_id(ct)), &iu->hash, filter, 0, NULL, get_endpoint_packet_func(ct), endpoints_draw, NULL);
if (error_string) {
g_free(iu);
cmdarg_err("Couldn't register endpoint tap: %s",
error_string->str);
g_string_free(error_string, TRUE);
exit(1);
}
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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