418 lines
13 KiB
C
418 lines
13 KiB
C
/* $NetBSD: ieee80211.c,v 1.4 2006/01/25 16:08:49 christos Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: ieee80211.c,v 1.4 2006/01/25 16:08:49 christos Exp $");
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net80211/ieee80211.h>
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#include <net80211/ieee80211_ioctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <netdb.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "extern.h"
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#include "ieee80211.h"
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void
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setifnwid(const char *val, int d)
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{
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struct ieee80211_nwid nwid;
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int len;
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len = sizeof(nwid.i_nwid);
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if (get_string(val, NULL, nwid.i_nwid, &len) == NULL)
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return;
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nwid.i_len = len;
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(void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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ifr.ifr_data = (void *)&nwid;
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if (ioctl(s, SIOCS80211NWID, &ifr) == -1)
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warn("SIOCS80211NWID");
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}
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void
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setifbssid(const char *val, int d)
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{
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struct ieee80211_bssid bssid;
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struct ether_addr *ea;
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if (d != 0) {
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/* no BSSID is especially desired */
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memset(&bssid.i_bssid, 0, sizeof(bssid.i_bssid));
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} else {
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ea = ether_aton(val);
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if (ea == NULL) {
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warnx("malformed BSSID: %s", val);
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return;
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}
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memcpy(&bssid.i_bssid, ea->ether_addr_octet,
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sizeof(bssid.i_bssid));
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}
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(void)strncpy(bssid.i_name, name, sizeof(bssid.i_name));
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if (ioctl(s, SIOCS80211BSSID, &bssid) == -1)
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warn("SIOCS80211BSSID");
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}
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void
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setifchan(const char *val, int d)
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{
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struct ieee80211chanreq channel;
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int chan;
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if (d != 0)
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chan = IEEE80211_CHAN_ANY;
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else {
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chan = atoi(val);
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if (chan < 0 || chan > 0xffff) {
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warnx("invalid channel: %s", val);
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return;
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}
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}
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(void)strncpy(channel.i_name, name, sizeof(channel.i_name));
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channel.i_channel = (u_int16_t) chan;
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if (ioctl(s, SIOCS80211CHANNEL, &channel) == -1)
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warn("SIOCS80211CHANNEL");
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}
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void
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setifnwkey(const char *val, int d)
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{
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struct ieee80211_nwkey nwkey;
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int i;
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u_int8_t keybuf[IEEE80211_WEP_NKID][16];
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nwkey.i_wepon = IEEE80211_NWKEY_WEP;
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nwkey.i_defkid = 1;
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for (i = 0; i < IEEE80211_WEP_NKID; i++) {
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nwkey.i_key[i].i_keylen = sizeof(keybuf[i]);
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nwkey.i_key[i].i_keydat = keybuf[i];
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}
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if (d != 0) {
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/* disable WEP encryption */
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nwkey.i_wepon = 0;
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i = 0;
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} else if (strcasecmp("persist", val) == 0) {
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/* use all values from persistent memory */
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nwkey.i_wepon |= IEEE80211_NWKEY_PERSIST;
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nwkey.i_defkid = 0;
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for (i = 0; i < IEEE80211_WEP_NKID; i++)
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nwkey.i_key[i].i_keylen = -1;
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} else if (strncasecmp("persist:", val, 8) == 0) {
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val += 8;
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/* program keys in persistent memory */
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nwkey.i_wepon |= IEEE80211_NWKEY_PERSIST;
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goto set_nwkey;
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} else {
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set_nwkey:
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if (isdigit((unsigned char)val[0]) && val[1] == ':') {
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/* specifying a full set of four keys */
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nwkey.i_defkid = val[0] - '0';
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val += 2;
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for (i = 0; i < IEEE80211_WEP_NKID; i++) {
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val = get_string(val, ",", keybuf[i],
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&nwkey.i_key[i].i_keylen);
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if (val == NULL)
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return;
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}
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if (*val != '\0') {
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warnx("SIOCS80211NWKEY: too many keys.");
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return;
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}
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} else {
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val = get_string(val, NULL, keybuf[0],
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&nwkey.i_key[0].i_keylen);
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if (val == NULL)
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return;
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i = 1;
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}
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}
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for (; i < IEEE80211_WEP_NKID; i++)
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nwkey.i_key[i].i_keylen = 0;
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(void)strncpy(nwkey.i_name, name, sizeof(nwkey.i_name));
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if (ioctl(s, SIOCS80211NWKEY, &nwkey) == -1)
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warn("SIOCS80211NWKEY");
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}
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void
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setifpowersave(const char *val, int d)
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{
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struct ieee80211_power power;
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(void)strncpy(power.i_name, name, sizeof(power.i_name));
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if (ioctl(s, SIOCG80211POWER, &power) == -1) {
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warn("SIOCG80211POWER");
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return;
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}
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power.i_enabled = d;
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if (ioctl(s, SIOCS80211POWER, &power) == -1)
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warn("SIOCS80211POWER");
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}
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void
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setifpowersavesleep(const char *val, int d)
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{
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struct ieee80211_power power;
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(void)strncpy(power.i_name, name, sizeof(power.i_name));
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if (ioctl(s, SIOCG80211POWER, &power) == -1) {
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warn("SIOCG80211POWER");
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return;
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}
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power.i_maxsleep = atoi(val);
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if (ioctl(s, SIOCS80211POWER, &power) == -1)
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warn("SIOCS80211POWER");
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}
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void
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ieee80211_statistics(void)
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{
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struct ieee80211_stats stats;
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memset(&ifr, 0, sizeof(ifr));
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ifr.ifr_buflen = sizeof(stats);
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ifr.ifr_buf = (caddr_t)&stats;
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(void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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if (ioctl(s, (zflag) ? SIOCG80211ZSTATS : SIOCG80211STATS,
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(caddr_t)&ifr) == -1)
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return;
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#define STAT_PRINT(_member, _desc) \
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printf("\t" _desc ": %" PRIu32 "\n", stats._member)
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STAT_PRINT(is_rx_badversion, "rx frame with bad version");
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STAT_PRINT(is_rx_tooshort, "rx frame too short");
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STAT_PRINT(is_rx_wrongbss, "rx from wrong bssid");
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STAT_PRINT(is_rx_dup, "rx discard 'cuz dup");
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STAT_PRINT(is_rx_wrongdir, "rx w/ wrong direction");
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STAT_PRINT(is_rx_mcastecho, "rx discard 'cuz mcast echo");
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STAT_PRINT(is_rx_notassoc, "rx discard 'cuz sta !assoc");
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STAT_PRINT(is_rx_noprivacy, "rx w/ wep but privacy off");
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STAT_PRINT(is_rx_unencrypted, "rx w/o wep and privacy on");
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STAT_PRINT(is_rx_wepfail, "rx wep processing failed");
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STAT_PRINT(is_rx_decap, "rx decapsulation failed");
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STAT_PRINT(is_rx_mgtdiscard, "rx discard mgt frames");
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STAT_PRINT(is_rx_ctl, "rx discard ctrl frames");
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STAT_PRINT(is_rx_beacon, "rx beacon frames");
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STAT_PRINT(is_rx_rstoobig, "rx rate set truncated");
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STAT_PRINT(is_rx_elem_missing, "rx required element missin");
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STAT_PRINT(is_rx_elem_toobig, "rx element too big");
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STAT_PRINT(is_rx_elem_toosmall, "rx element too small");
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STAT_PRINT(is_rx_elem_unknown, "rx element unknown");
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STAT_PRINT(is_rx_badchan, "rx frame w/ invalid chan");
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STAT_PRINT(is_rx_chanmismatch, "rx frame chan mismatch");
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STAT_PRINT(is_rx_nodealloc, "rx frame dropped");
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STAT_PRINT(is_rx_ssidmismatch, "rx frame ssid mismatch ");
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STAT_PRINT(is_rx_auth_unsupported, "rx w/ unsupported auth alg");
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STAT_PRINT(is_rx_auth_fail, "rx sta auth failure");
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STAT_PRINT(is_rx_auth_countermeasures, "rx auth discard 'cuz CM");
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STAT_PRINT(is_rx_assoc_bss, "rx assoc from wrong bssid");
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STAT_PRINT(is_rx_assoc_notauth, "rx assoc w/o auth");
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STAT_PRINT(is_rx_assoc_capmismatch, "rx assoc w/ cap mismatch");
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STAT_PRINT(is_rx_assoc_norate, "rx assoc w/ no rate match");
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STAT_PRINT(is_rx_assoc_badwpaie, "rx assoc w/ bad WPA IE");
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STAT_PRINT(is_rx_deauth, "rx deauthentication");
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STAT_PRINT(is_rx_disassoc, "rx disassociation");
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STAT_PRINT(is_rx_badsubtype, "rx frame w/ unknown subtyp");
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STAT_PRINT(is_rx_nobuf, "rx failed for lack of buf");
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STAT_PRINT(is_rx_decryptcrc, "rx decrypt failed on crc");
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STAT_PRINT(is_rx_ahdemo_mgt, "rx discard ahdemo mgt fram");
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STAT_PRINT(is_rx_bad_auth, "rx bad auth request");
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STAT_PRINT(is_rx_unauth, "rx on unauthorized port");
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STAT_PRINT(is_rx_badkeyid, "rx w/ incorrect keyid");
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STAT_PRINT(is_rx_ccmpreplay, "rx seq# violation (CCMP)");
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STAT_PRINT(is_rx_ccmpformat, "rx format bad (CCMP)");
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STAT_PRINT(is_rx_ccmpmic, "rx MIC check failed (CCMP)");
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STAT_PRINT(is_rx_tkipreplay, "rx seq# violation (TKIP)");
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STAT_PRINT(is_rx_tkipformat, "rx format bad (TKIP)");
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STAT_PRINT(is_rx_tkipmic, "rx MIC check failed (TKIP)");
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STAT_PRINT(is_rx_tkipicv, "rx ICV check failed (TKIP)");
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STAT_PRINT(is_rx_badcipher, "rx failed 'cuz key type");
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STAT_PRINT(is_rx_nocipherctx, "rx failed 'cuz key !setup");
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STAT_PRINT(is_rx_acl, "rx discard 'cuz acl policy");
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STAT_PRINT(is_tx_nobuf, "tx failed for lack of buf");
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STAT_PRINT(is_tx_nonode, "tx failed for no node");
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STAT_PRINT(is_tx_unknownmgt, "tx of unknown mgt frame");
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STAT_PRINT(is_tx_badcipher, "tx failed 'cuz key type");
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STAT_PRINT(is_tx_nodefkey, "tx failed 'cuz no defkey");
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STAT_PRINT(is_tx_noheadroom, "tx failed 'cuz no space");
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STAT_PRINT(is_scan_active, "active scans started");
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STAT_PRINT(is_scan_passive, "passive scans started");
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STAT_PRINT(is_node_timeout, "nodes timed out inactivity");
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STAT_PRINT(is_crypto_nomem, "no memory for crypto ctx");
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STAT_PRINT(is_crypto_tkip, "tkip crypto done in s/w");
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STAT_PRINT(is_crypto_tkipenmic, "tkip en-MIC done in s/w");
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STAT_PRINT(is_crypto_tkipdemic, "tkip de-MIC done in s/w");
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STAT_PRINT(is_crypto_tkipcm, "tkip counter measures");
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STAT_PRINT(is_crypto_ccmp, "ccmp crypto done in s/w");
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STAT_PRINT(is_crypto_wep, "wep crypto done in s/w");
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STAT_PRINT(is_crypto_setkey_cipher, "cipher rejected key");
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STAT_PRINT(is_crypto_setkey_nokey, "no key index for setkey");
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STAT_PRINT(is_crypto_delkey, "driver key delete failed");
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STAT_PRINT(is_crypto_badcipher, "unknown cipher");
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STAT_PRINT(is_crypto_nocipher, "cipher not available");
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STAT_PRINT(is_crypto_attachfail, "cipher attach failed");
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STAT_PRINT(is_crypto_swfallback, "cipher fallback to s/w");
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STAT_PRINT(is_crypto_keyfail, "driver key alloc failed");
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STAT_PRINT(is_crypto_enmicfail, "en-MIC failed");
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STAT_PRINT(is_ibss_capmismatch, "merge failed-cap mismatch");
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STAT_PRINT(is_ibss_norate, "merge failed-rate mismatch");
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STAT_PRINT(is_ps_unassoc, "ps-poll for unassoc. sta");
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STAT_PRINT(is_ps_badaid, "ps-poll w/ incorrect aid");
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STAT_PRINT(is_ps_qempty, "ps-poll w/ nothing to send");
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}
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void
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ieee80211_status(void)
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{
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int i, nwkey_verbose;
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struct ieee80211_nwid nwid;
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struct ieee80211_nwkey nwkey;
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struct ieee80211_power power;
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u_int8_t keybuf[IEEE80211_WEP_NKID][16];
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struct ieee80211_bssid bssid;
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struct ieee80211chanreq channel;
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struct ether_addr ea;
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static const u_int8_t zero_macaddr[IEEE80211_ADDR_LEN];
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memset(&ifr, 0, sizeof(ifr));
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ifr.ifr_data = (void *)&nwid;
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(void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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if (ioctl(s, SIOCG80211NWID, &ifr) == -1)
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return;
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if (nwid.i_len > IEEE80211_NWID_LEN) {
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warnx("SIOCG80211NWID: wrong length of nwid (%d)", nwid.i_len);
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return;
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}
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printf("\tssid ");
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print_string(nwid.i_nwid, nwid.i_len);
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memset(&nwkey, 0, sizeof(nwkey));
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(void)strncpy(nwkey.i_name, name, sizeof(nwkey.i_name));
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/* show nwkey only when WEP is enabled */
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if (ioctl(s, SIOCG80211NWKEY, &nwkey) == -1 ||
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nwkey.i_wepon == 0) {
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printf("\n");
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goto skip_wep;
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}
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printf(" nwkey ");
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/* try to retrieve WEP keys */
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for (i = 0; i < IEEE80211_WEP_NKID; i++) {
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nwkey.i_key[i].i_keydat = keybuf[i];
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nwkey.i_key[i].i_keylen = sizeof(keybuf[i]);
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}
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if (ioctl(s, SIOCG80211NWKEY, &nwkey) == -1) {
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printf("*****");
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} else {
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nwkey_verbose = 0;
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/* check to see non default key or multiple keys defined */
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if (nwkey.i_defkid != 1) {
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nwkey_verbose = 1;
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} else {
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for (i = 1; i < IEEE80211_WEP_NKID; i++) {
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if (nwkey.i_key[i].i_keylen != 0) {
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nwkey_verbose = 1;
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break;
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}
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}
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}
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/* check extra ambiguity with keywords */
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if (!nwkey_verbose) {
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if (nwkey.i_key[0].i_keylen >= 2 &&
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isdigit(nwkey.i_key[0].i_keydat[0]) &&
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nwkey.i_key[0].i_keydat[1] == ':')
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nwkey_verbose = 1;
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else if (nwkey.i_key[0].i_keylen >= 7 &&
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strncasecmp("persist",
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(const char *)nwkey.i_key[0].i_keydat, 7) == 0)
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nwkey_verbose = 1;
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}
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if (nwkey_verbose)
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printf("%d:", nwkey.i_defkid);
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for (i = 0; i < IEEE80211_WEP_NKID; i++) {
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if (i > 0)
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printf(",");
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if (nwkey.i_key[i].i_keylen < 0)
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printf("persist");
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else
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print_string(nwkey.i_key[i].i_keydat,
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nwkey.i_key[i].i_keylen);
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if (!nwkey_verbose)
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break;
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}
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}
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printf("\n");
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skip_wep:
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(void)strncpy(power.i_name, name, sizeof(power.i_name));
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if (ioctl(s, SIOCG80211POWER, &power) == -1)
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goto skip_power;
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printf("\tpowersave ");
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if (power.i_enabled)
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printf("on (%dms sleep)", power.i_maxsleep);
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else
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printf("off");
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printf("\n");
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skip_power:
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(void)strncpy(bssid.i_name, name, sizeof(bssid.i_name));
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if (ioctl(s, SIOCG80211BSSID, &bssid) == -1)
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return;
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(void)strncpy(channel.i_name, name, sizeof(channel.i_name));
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if (ioctl(s, SIOCG80211CHANNEL, &channel) == -1)
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return;
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if (memcmp(bssid.i_bssid, zero_macaddr, IEEE80211_ADDR_LEN) == 0) {
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if (channel.i_channel != (u_int16_t)-1)
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printf("\tchan %d\n", channel.i_channel);
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} else {
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memcpy(ea.ether_addr_octet, bssid.i_bssid,
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sizeof(ea.ether_addr_octet));
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printf("\tbssid %s", ether_ntoa(&ea));
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if (channel.i_channel != IEEE80211_CHAN_ANY)
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printf(" chan %d", channel.i_channel);
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printf("\n");
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}
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}
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