FreeBSD-5.3/sbin/ifconfig/ifieee80211.c
/*
* Copyright 2001 The Aerospace Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of The Aerospace Corporation may not be used to endorse or
* promote products derived from this software.
*
* THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AEROSPACE CORPORATION BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: src/sbin/ifconfig/ifieee80211.c,v 1.10 2004/04/04 07:28:58 phk Exp $
*/
/*-
* Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/route.h>
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_crypto.h>
#include <net80211/ieee80211_ioctl.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ifconfig.h"
static void set80211(int s, int type, int val, int len, u_int8_t *data);
static const char *get_string(const char *val, const char *sep,
u_int8_t *buf, int *lenp);
static void print_string(const u_int8_t *buf, int len);
void
set80211ssid(const char *val, int d, int s, const struct afswtch *rafp)
{
int ssid;
int len;
u_int8_t data[33];
ssid = 0;
len = strlen(val);
if (len > 2 && isdigit(val[0]) && val[1] == ':') {
ssid = atoi(val)-1;
val += 2;
}
bzero(data, sizeof(data));
len = sizeof(data);
get_string(val, NULL, data, &len);
set80211(s, IEEE80211_IOC_SSID, ssid, len, data);
}
void
set80211stationname(const char *val, int d, int s, const struct afswtch *rafp)
{
int len;
u_int8_t data[33];
bzero(data, sizeof(data));
len = sizeof(data);
get_string(val, NULL, data, &len);
set80211(s, IEEE80211_IOC_STATIONNAME, 0, len, data);
}
void
set80211channel(const char *val, int d, int s, const struct afswtch *rafp)
{
if (strcmp(val, "-") == 0)
set80211(s, IEEE80211_IOC_CHANNEL, IEEE80211_CHAN_ANY, 0, NULL);
else
set80211(s, IEEE80211_IOC_CHANNEL, atoi(val), 0, NULL);
}
void
set80211authmode(const char *val, int d, int s, const struct afswtch *rafp)
{
int mode;
if (strcasecmp(val, "none") == 0) {
mode = IEEE80211_AUTH_NONE;
} else if (strcasecmp(val, "open") == 0) {
mode = IEEE80211_AUTH_OPEN;
} else if (strcasecmp(val, "shared") == 0) {
mode = IEEE80211_AUTH_SHARED;
} else {
err(1, "unknown authmode");
}
set80211(s, IEEE80211_IOC_AUTHMODE, mode, 0, NULL);
}
void
set80211powersavemode(const char *val, int d, int s, const struct afswtch *rafp)
{
int mode;
if (strcasecmp(val, "off") == 0) {
mode = IEEE80211_POWERSAVE_OFF;
} else if (strcasecmp(val, "on") == 0) {
mode = IEEE80211_POWERSAVE_ON;
} else if (strcasecmp(val, "cam") == 0) {
mode = IEEE80211_POWERSAVE_CAM;
} else if (strcasecmp(val, "psp") == 0) {
mode = IEEE80211_POWERSAVE_PSP;
} else if (strcasecmp(val, "psp-cam") == 0) {
mode = IEEE80211_POWERSAVE_PSP_CAM;
} else {
err(1, "unknown powersavemode");
}
set80211(s, IEEE80211_IOC_POWERSAVE, mode, 0, NULL);
}
void
set80211powersave(const char *val, int d, int s, const struct afswtch *rafp)
{
if (d == 0)
set80211(s, IEEE80211_IOC_POWERSAVE, IEEE80211_POWERSAVE_OFF,
0, NULL);
else
set80211(s, IEEE80211_IOC_POWERSAVE, IEEE80211_POWERSAVE_ON,
0, NULL);
}
void
set80211powersavesleep(const char *val, int d, int s, const struct afswtch *rafp)
{
set80211(s, IEEE80211_IOC_POWERSAVESLEEP, atoi(val), 0, NULL);
}
void
set80211wepmode(const char *val, int d, int s, const struct afswtch *rafp)
{
int mode;
if (strcasecmp(val, "off") == 0) {
mode = IEEE80211_WEP_OFF;
} else if (strcasecmp(val, "on") == 0) {
mode = IEEE80211_WEP_ON;
} else if (strcasecmp(val, "mixed") == 0) {
mode = IEEE80211_WEP_MIXED;
} else {
err(1, "unknown wep mode");
}
set80211(s, IEEE80211_IOC_WEP, mode, 0, NULL);
}
void
set80211wep(const char *val, int d, int s, const struct afswtch *rafp)
{
set80211(s, IEEE80211_IOC_WEP, d, 0, NULL);
}
void
set80211weptxkey(const char *val, int d, int s, const struct afswtch *rafp)
{
set80211(s, IEEE80211_IOC_WEPTXKEY, atoi(val)-1, 0, NULL);
}
void
set80211wepkey(const char *val, int d, int s, const struct afswtch *rafp)
{
int key = 0;
int len;
u_int8_t data[IEEE80211_KEYBUF_SIZE];
if (isdigit(val[0]) && val[1] == ':') {
key = atoi(val)-1;
val += 2;
}
bzero(data, sizeof(data));
len = sizeof(data);
get_string(val, NULL, data, &len);
set80211(s, IEEE80211_IOC_WEPKEY, key, len, data);
}
/*
* This function is purly a NetBSD compatability interface. The NetBSD
* iterface is too inflexable, but it's there so we'll support it since
* it's not all that hard.
*/
void
set80211nwkey(const char *val, int d, int s, const struct afswtch *rafp)
{
int txkey;
int i, len;
u_int8_t data[IEEE80211_KEYBUF_SIZE];
set80211(s, IEEE80211_IOC_WEP, IEEE80211_WEP_ON, 0, NULL);
if (isdigit(val[0]) && val[1] == ':') {
txkey = val[0]-'0'-1;
val += 2;
for (i = 0; i < 4; i++) {
bzero(data, sizeof(data));
len = sizeof(data);
val = get_string(val, ",", data, &len);
set80211(s, IEEE80211_IOC_WEPKEY, i, len, data);
}
} else {
bzero(data, sizeof(data));
len = sizeof(data);
get_string(val, NULL, data, &len);
txkey = 0;
set80211(s, IEEE80211_IOC_WEPKEY, 0, len, data);
bzero(data, sizeof(data));
for (i = 1; i < 4; i++)
set80211(s, IEEE80211_IOC_WEPKEY, i, 0, data);
}
set80211(s, IEEE80211_IOC_WEPTXKEY, txkey, 0, NULL);
}
void
set80211rtsthreshold(const char *val, int d, int s, const struct afswtch *rafp)
{
set80211(s, IEEE80211_IOC_RTSTHRESHOLD, atoi(val), 0, NULL);
}
void
set80211protmode(const char *val, int d, int s, const struct afswtch *rafp)
{
int mode;
if (strcasecmp(val, "off") == 0) {
mode = IEEE80211_PROTMODE_OFF;
} else if (strcasecmp(val, "cts") == 0) {
mode = IEEE80211_PROTMODE_CTS;
} else if (strcasecmp(val, "rtscts") == 0) {
mode = IEEE80211_PROTMODE_RTSCTS;
} else {
err(1, "unknown protection mode");
}
set80211(s, IEEE80211_IOC_PROTMODE, mode, 0, NULL);
}
void
set80211txpower(const char *val, int d, int s, const struct afswtch *rafp)
{
set80211(s, IEEE80211_IOC_TXPOWER, atoi(val), 0, NULL);
}
void
ieee80211_status (int s, struct rt_addrinfo *info __unused)
{
int i;
int num;
struct ieee80211req ireq;
u_int8_t data[32];
char spacer;
(void) memset(&ireq, 0, sizeof(ireq));
(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
ireq.i_data = &data;
ireq.i_type = IEEE80211_IOC_SSID;
ireq.i_val = -1;
if (ioctl(s, SIOCG80211, &ireq) < 0) {
/* If we can't get the SSID, the this isn't an 802.11 device. */
return;
}
printf("\tssid ");
print_string(data, ireq.i_len);
num = 0;
ireq.i_type = IEEE80211_IOC_NUMSSIDS;
if (ioctl(s, SIOCG80211, &ireq) >= 0) {
num = ireq.i_val;
}
ireq.i_type = IEEE80211_IOC_SSID;
for (ireq.i_val = 0; ireq.i_val < num; ireq.i_val++) {
if (ioctl(s, SIOCG80211, &ireq) >= 0 && ireq.i_len > 0) {
printf(" %d:", ireq.i_val + 1);
print_string(data, ireq.i_len);
}
}
printf("\n");
ireq.i_type = IEEE80211_IOC_STATIONNAME;
if (ioctl(s, SIOCG80211, &ireq) != -1) {
printf("\tstationname ");
print_string(data, ireq.i_len);
printf("\n");
}
ireq.i_type = IEEE80211_IOC_CHANNEL;
if (ioctl(s, SIOCG80211, &ireq) < 0) {
goto end;
}
printf("\tchannel %d", ireq.i_val);
ireq.i_type = IEEE80211_IOC_AUTHMODE;
if (ioctl(s, SIOCG80211, &ireq) != -1) {
printf(" authmode");
switch (ireq.i_val) {
case IEEE80211_AUTH_NONE:
printf(" NONE");
break;
case IEEE80211_AUTH_OPEN:
printf(" OPEN");
break;
case IEEE80211_AUTH_SHARED:
printf(" SHARED");
break;
default:
printf(" UNKNOWN");
break;
}
}
ireq.i_type = IEEE80211_IOC_POWERSAVE;
if (ioctl(s, SIOCG80211, &ireq) != -1 &&
ireq.i_val != IEEE80211_POWERSAVE_NOSUP ) {
printf(" powersavemode");
switch (ireq.i_val) {
case IEEE80211_POWERSAVE_OFF:
printf(" OFF");
break;
case IEEE80211_POWERSAVE_CAM:
printf(" CAM");
break;
case IEEE80211_POWERSAVE_PSP:
printf(" PSP");
break;
case IEEE80211_POWERSAVE_PSP_CAM:
printf(" PSP-CAM");
break;
}
ireq.i_type = IEEE80211_IOC_POWERSAVESLEEP;
if (ioctl(s, SIOCG80211, &ireq) != -1) {
if (ireq.i_val)
printf(" powersavesleep %d", ireq.i_val);
}
}
printf("\n");
spacer = '\t';
ireq.i_type = IEEE80211_IOC_RTSTHRESHOLD;
if (ioctl(s, SIOCG80211, &ireq) != -1) {
printf("%crtsthreshold %d", spacer, ireq.i_val);
spacer = ' ';
}
ireq.i_type = IEEE80211_IOC_PROTMODE;
if (ioctl(s, SIOCG80211, &ireq) != -1) {
printf("%cprotmode", spacer);
switch (ireq.i_val) {
case IEEE80211_PROTMODE_OFF:
printf(" OFF");
break;
case IEEE80211_PROTMODE_CTS:
printf(" CTS");
break;
case IEEE80211_PROTMODE_RTSCTS:
printf(" RTSCTS");
break;
default:
printf(" UNKNOWN");
break;
}
spacer = ' ';
}
ireq.i_type = IEEE80211_IOC_TXPOWER;
if (ioctl(s, SIOCG80211, &ireq) != -1) {
printf("%ctxpower %d", spacer, ireq.i_val);
spacer = ' ';
}
if (spacer != '\t')
printf("\n");
ireq.i_type = IEEE80211_IOC_WEP;
if (ioctl(s, SIOCG80211, &ireq) != -1 &&
ireq.i_val != IEEE80211_WEP_NOSUP) {
printf("\twepmode");
switch (ireq.i_val) {
case IEEE80211_WEP_OFF:
printf(" OFF");
break;
case IEEE80211_WEP_ON:
printf(" ON");
break;
case IEEE80211_WEP_MIXED:
printf(" MIXED");
break;
default:
printf(" UNKNOWN");
break;
}
/*
* If we get here then we've got WEP support so we need
* to print WEP status.
*/
ireq.i_type = IEEE80211_IOC_WEPTXKEY;
if (ioctl(s, SIOCG80211, &ireq) < 0) {
warn("WEP support, but no tx key!");
goto end;
}
printf(" weptxkey %d", ireq.i_val+1);
ireq.i_type = IEEE80211_IOC_NUMWEPKEYS;
if (ioctl(s, SIOCG80211, &ireq) < 0) {
warn("WEP support, but no NUMWEPKEYS support!");
goto end;
}
num = ireq.i_val;
printf("\n");
ireq.i_type = IEEE80211_IOC_WEPKEY;
spacer = '\t';
for (i = 0; i < num; i++) {
ireq.i_val = i;
if (ioctl(s, SIOCG80211, &ireq) < 0) {
warn("WEP support, but can get keys!");
goto end;
}
if (ireq.i_len == 0 ||
ireq.i_len > IEEE80211_KEYBUF_SIZE)
continue;
printf("%cwepkey %d:%s", spacer, i+1,
ireq.i_len <= 5 ? "40-bit" :
ireq.i_len <= 13 ? "104-bit" : "128-bit");
if (spacer == '\t')
spacer = ' ';
}
if (spacer == ' ')
printf("\n");
}
end:
return;
}
static void
set80211(int s, int type, int val, int len, u_int8_t *data)
{
struct ieee80211req ireq;
(void) memset(&ireq, 0, sizeof(ireq));
(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
ireq.i_type = type;
ireq.i_val = val;
ireq.i_len = len;
ireq.i_data = data;
if (ioctl(s, SIOCS80211, &ireq) < 0)
err(1, "SIOCS80211");
}
static const char *
get_string(const char *val, const char *sep, u_int8_t *buf, int *lenp)
{
int len;
int hexstr;
u_int8_t *p;
len = *lenp;
p = buf;
hexstr = (val[0] == '0' && tolower((u_char)val[1]) == 'x');
if (hexstr)
val += 2;
for (;;) {
if (*val == '\0')
break;
if (sep != NULL && strchr(sep, *val) != NULL) {
val++;
break;
}
if (hexstr) {
if (!isxdigit((u_char)val[0])) {
warnx("bad hexadecimal digits");
return NULL;
}
if (!isxdigit((u_char)val[1])) {
warnx("odd count hexadecimal digits");
return NULL;
}
}
if (p >= buf + len) {
if (hexstr)
warnx("hexadecimal digits too long");
else
warnx("string too long");
return NULL;
}
if (hexstr) {
#define tohex(x) (isdigit(x) ? (x) - '0' : tolower(x) - 'a' + 10)
*p++ = (tohex((u_char)val[0]) << 4) |
tohex((u_char)val[1]);
#undef tohex
val += 2;
} else
*p++ = *val++;
}
len = p - buf;
/* The string "-" is treated as the empty string. */
if (!hexstr && len == 1 && buf[0] == '-')
len = 0;
if (len < *lenp)
memset(p, 0, *lenp - len);
*lenp = len;
return val;
}
static void
print_string(const u_int8_t *buf, int len)
{
int i;
int hasspc;
i = 0;
hasspc = 0;
for (; i < len; i++) {
if (!isprint(buf[i]) && buf[i] != '\0')
break;
if (isspace(buf[i]))
hasspc++;
}
if (i == len) {
if (hasspc || len == 0 || buf[0] == '\0')
printf("\"%.*s\"", len, buf);
else
printf("%.*s", len, buf);
} else {
printf("0x");
for (i = 0; i < len; i++)
printf("%02x", buf[i]);
}
}