mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-25 08:48:31 -05:00
64f45d070b
The output file includes all the capture (or read from wireless PCAP file) frames in their original contents and another copy of each frame that is decrypted in wlantest (including EAPOL-Key Key Data field).
151 lines
3.4 KiB
C
151 lines
3.4 KiB
C
/*
|
|
* Linux packet socket monitor
|
|
* Copyright (c) 2010, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
|
* license.
|
|
*
|
|
* See README and COPYING for more details.
|
|
*/
|
|
|
|
#include "utils/includes.h"
|
|
#include <net/if.h>
|
|
#include <netpacket/packet.h>
|
|
|
|
#include "utils/common.h"
|
|
#include "utils/eloop.h"
|
|
#include "wlantest.h"
|
|
|
|
|
|
static void monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
|
|
{
|
|
struct wlantest *wt = eloop_ctx;
|
|
u8 buf[3000];
|
|
int len;
|
|
|
|
len = recv(sock, buf, sizeof(buf), 0);
|
|
if (len < 0) {
|
|
wpa_printf(MSG_INFO, "recv(PACKET): %s", strerror(errno));
|
|
return;
|
|
}
|
|
|
|
write_pcap_captured(wt, buf, len);
|
|
wlantest_process(wt, buf, len);
|
|
}
|
|
|
|
|
|
static void monitor_read_wired(int sock, void *eloop_ctx, void *sock_ctx)
|
|
{
|
|
struct wlantest *wt = eloop_ctx;
|
|
u8 buf[3000];
|
|
int len;
|
|
|
|
len = recv(sock, buf, sizeof(buf), 0);
|
|
if (len < 0) {
|
|
wpa_printf(MSG_INFO, "recv(PACKET): %s", strerror(errno));
|
|
return;
|
|
}
|
|
|
|
wlantest_process_wired(wt, buf, len);
|
|
}
|
|
|
|
|
|
int monitor_init(struct wlantest *wt, const char *ifname)
|
|
{
|
|
struct sockaddr_ll ll;
|
|
|
|
os_memset(&ll, 0, sizeof(ll));
|
|
ll.sll_family = AF_PACKET;
|
|
ll.sll_ifindex = if_nametoindex(ifname);
|
|
if (ll.sll_ifindex == 0) {
|
|
wpa_printf(MSG_ERROR, "Monitor interface '%s' does not exist",
|
|
ifname);
|
|
return -1;
|
|
}
|
|
|
|
wt->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
|
|
if (wt->monitor_sock < 0) {
|
|
wpa_printf(MSG_ERROR, "socket(PF_PACKET,SOCK_RAW): %s",
|
|
strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (bind(wt->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
|
|
wpa_printf(MSG_ERROR, "bind(PACKET): %s", strerror(errno));
|
|
close(wt->monitor_sock);
|
|
wt->monitor_sock = -1;
|
|
return -1;
|
|
}
|
|
|
|
if (eloop_register_read_sock(wt->monitor_sock, monitor_read, wt, NULL))
|
|
{
|
|
wpa_printf(MSG_ERROR, "Could not register monitor read "
|
|
"socket");
|
|
close(wt->monitor_sock);
|
|
wt->monitor_sock = -1;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int monitor_init_wired(struct wlantest *wt, const char *ifname)
|
|
{
|
|
struct sockaddr_ll ll;
|
|
|
|
os_memset(&ll, 0, sizeof(ll));
|
|
ll.sll_family = AF_PACKET;
|
|
ll.sll_ifindex = if_nametoindex(ifname);
|
|
if (ll.sll_ifindex == 0) {
|
|
wpa_printf(MSG_ERROR, "Monitor interface '%s' does not exist",
|
|
ifname);
|
|
return -1;
|
|
}
|
|
|
|
wt->monitor_wired = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
|
|
if (wt->monitor_wired < 0) {
|
|
wpa_printf(MSG_ERROR, "socket(PF_PACKET,SOCK_RAW): %s",
|
|
strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (bind(wt->monitor_wired, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
|
|
wpa_printf(MSG_ERROR, "bind(PACKET): %s", strerror(errno));
|
|
close(wt->monitor_wired);
|
|
wt->monitor_wired = -1;
|
|
return -1;
|
|
}
|
|
|
|
if (eloop_register_read_sock(wt->monitor_wired, monitor_read_wired,
|
|
wt, NULL)) {
|
|
wpa_printf(MSG_ERROR, "Could not register monitor read "
|
|
"socket");
|
|
close(wt->monitor_wired);
|
|
wt->monitor_wired = -1;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void monitor_deinit(struct wlantest *wt)
|
|
{
|
|
if (wt->monitor_sock >= 0) {
|
|
eloop_unregister_read_sock(wt->monitor_sock);
|
|
close(wt->monitor_sock);
|
|
wt->monitor_sock = -1;
|
|
}
|
|
|
|
if (wt->monitor_wired >= 0) {
|
|
eloop_unregister_read_sock(wt->monitor_wired);
|
|
close(wt->monitor_wired);
|
|
wt->monitor_wired = -1;
|
|
}
|
|
}
|