3215df77ee
Another interface (-I) or pcap file (-R) can now be specified as a source of RADIUS packets. These packets are now parsed, but the MSK is not yet derived for PMK use.
149 lines
3.3 KiB
C
149 lines
3.3 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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|