/*-
* Copyright (c) 2005-2007 Sam Leffler, Errno Consulting
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* IEEE 802.11 regdomain support.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <net/ethernet.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_regdomain.h>
void
ieee80211_regdomain_attach(struct ieee80211com *ic)
{
ic->ic_regdomain = 0; /* XXX */
ic->ic_countrycode = CTRY_UNITED_STATES;/* XXX */
ic->ic_location = 1+2; /* both */
}
void
ieee80211_regdomain_detach(struct ieee80211com *ic)
{
}
static void
addchan(struct ieee80211com *ic, int ieee, int flags)
{
struct ieee80211_channel *c;
c = &ic->ic_channels[ic->ic_nchans++];
c->ic_freq = ieee80211_ieee2mhz(ieee, flags);
c->ic_ieee = ieee;
c->ic_flags = flags;
}
/*
* Setup the channel list for the specified regulatory domain,
* country code, and operating modes. This interface is used
* when a driver does not obtain the channel list from another
* source (such as firmware).
*/
void
ieee80211_init_channels(struct ieee80211com *ic,
int rd, enum ISOCountryCode cc, int bands, int outdoor, int ecm)
{
int i;
/* XXX just do something for now */
ic->ic_nchans = 0;
if (isset(&bands, IEEE80211_MODE_11B) ||
isset(&bands, IEEE80211_MODE_11G)) {
for (i = 1; i <= (ecm ? 14 : 11); i++) {
if (isset(&bands, IEEE80211_MODE_11B))
addchan(ic, i, IEEE80211_CHAN_B);
if (isset(&bands, IEEE80211_MODE_11G))
addchan(ic, i, IEEE80211_CHAN_G);
}
}
if (isset(&bands, IEEE80211_MODE_11A)) {
for (i = 36; i <= 64; i += 4)
addchan(ic, i, IEEE80211_CHAN_A);
for (i = 100; i <= 140; i += 4)
addchan(ic, i, IEEE80211_CHAN_A);
for (i = 149; i <= 161; i += 4)
addchan(ic, i, IEEE80211_CHAN_A);
}
ic->ic_regdomain = rd;
ic->ic_countrycode = cc;
ic->ic_location = outdoor;
}
/*
* Add Country Information IE.
*/
uint8_t *
ieee80211_add_countryie(uint8_t *frm, struct ieee80211com *ic,
enum ISOCountryCode cc, int location)
{
#define CHAN_UNINTERESTING \
(IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO | \
IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER)
/* XXX what about auto? */
/* flag set of channels to be excluded */
static const int skipflags[IEEE80211_MODE_MAX] = {
CHAN_UNINTERESTING, /* MODE_AUTO */
CHAN_UNINTERESTING | IEEE80211_CHAN_2GHZ, /* MODE_11A */
CHAN_UNINTERESTING | IEEE80211_CHAN_5GHZ, /* MODE_11B */
CHAN_UNINTERESTING | IEEE80211_CHAN_5GHZ, /* MODE_11G */
CHAN_UNINTERESTING | IEEE80211_CHAN_OFDM | /* MODE_FH */
IEEE80211_CHAN_CCK | IEEE80211_CHAN_DYN,
CHAN_UNINTERESTING | IEEE80211_CHAN_2GHZ, /* MODE_TURBO_A */
CHAN_UNINTERESTING | IEEE80211_CHAN_5GHZ, /* MODE_TURBO_G */
CHAN_UNINTERESTING | IEEE80211_CHAN_2GHZ, /* MODE_STURBO_A */
CHAN_UNINTERESTING | IEEE80211_CHAN_2GHZ, /* MODE_11NA */
CHAN_UNINTERESTING | IEEE80211_CHAN_5GHZ, /* MODE_11NG */
};
struct ieee80211_country_ie *ie = (struct ieee80211_country_ie *)frm;
const char *iso_name;
uint8_t nextchan, chans[IEEE80211_CHAN_BYTES];
int i, skip;
ie->ie = IEEE80211_ELEMID_COUNTRY;
iso_name = ieee80211_cctoiso(cc);
if (iso_name == NULL) {
if_printf(ic->ic_ifp, "bad country code %d ignored\n", cc);
iso_name = " ";
}
ie->cc[0] = iso_name[0];
ie->cc[1] = iso_name[1];
/*
* Indoor/Outdoor portion of country string.
* NB: this is not quite right, since we should have one of:
* 'I' indoor only
* 'O' outdoor only
* ' ' all enviroments
*/
ie->cc[2] = ((location & 3) == 3 ? ' ' : location & 1 ? 'I' : 'O');
/*
* Run-length encoded channel+max tx power info.
*/
frm = (uint8_t *)&ie->band[0];
nextchan = 0; /* NB: impossible channel # */
memset(chans, 0, sizeof(chans));
skip = skipflags[ic->ic_curmode];
for (i = 0; i < ic->ic_nchans; i++) {
const struct ieee80211_channel *c = &ic->ic_channels[i];
if (isset(chans, c->ic_ieee)) /* suppress dup's */
continue;
if (c->ic_flags & skip) /* skip band, etc. */
continue;
setbit(chans, c->ic_ieee);
if (c->ic_ieee != nextchan ||
c->ic_maxregpower != frm[-1]) { /* new run */
/* XXX max of 83 runs */
frm[0] = c->ic_ieee; /* starting channel # */
frm[1] = 1; /* # channels in run */
frm[2] = c->ic_maxregpower; /* tx power cap */
frm += 3;
nextchan = c->ic_ieee + 1; /* overflow? */
} else { /* extend run */
frm[-2]++;
nextchan++;
}
}
ie->len = frm - ie->cc;
if (ie->len & 1) { /* Zero pad to multiple of 2 */
ie->len++;
*frm++ = 0;
}
return frm;
#undef CHAN_UNINTERESTING
}
/*
* Country Code Table for code-to-string conversion.
*/
static const struct {
enum ISOCountryCode iso_code;
const char* iso_name;
} country_strings[] = {
{ CTRY_DEBUG, "DB" }, /* NB: nonstandard */
{ CTRY_DEFAULT, "NA" }, /* NB: nonstandard */
{ CTRY_ALBANIA, "AL" },
{ CTRY_ALGERIA, "DZ" },
{ CTRY_ARGENTINA, "AR" },
{ CTRY_ARMENIA, "AM" },
{ CTRY_AUSTRALIA, "AU" },
{ CTRY_AUSTRIA, "AT" },
{ CTRY_AZERBAIJAN, "AZ" },
{ CTRY_BAHRAIN, "BH" },
{ CTRY_BELARUS, "BY" },
{ CTRY_BELGIUM, "BE" },
{ CTRY_BELIZE, "BZ" },
{ CTRY_BOLIVIA, "BO" },
{ CTRY_BRAZIL, "BR" },
{ CTRY_BRUNEI_DARUSSALAM, "BN" },
{ CTRY_BULGARIA, "BG" },
{ CTRY_CANADA, "CA" },
{ CTRY_CHILE, "CL" },
{ CTRY_CHINA, "CN" },
{ CTRY_COLOMBIA, "CO" },
{ CTRY_COSTA_RICA, "CR" },
{ CTRY_CROATIA, "HR" },
{ CTRY_CYPRUS, "CY" },
{ CTRY_CZECH, "CZ" },
{ CTRY_DENMARK, "DK" },
{ CTRY_DOMINICAN_REPUBLIC, "DO" },
{ CTRY_ECUADOR, "EC" },
{ CTRY_EGYPT, "EG" },
{ CTRY_EL_SALVADOR, "SV" },
{ CTRY_ESTONIA, "EE" },
{ CTRY_FINLAND, "FI" },
{ CTRY_FRANCE, "FR" },
{ CTRY_FRANCE2, "F2" },
{ CTRY_GEORGIA, "GE" },
{ CTRY_GERMANY, "DE" },
{ CTRY_GREECE, "GR" },
{ CTRY_GUATEMALA, "GT" },
{ CTRY_HONDURAS, "HN" },
{ CTRY_HONG_KONG, "HK" },
{ CTRY_HUNGARY, "HU" },
{ CTRY_ICELAND, "IS" },
{ CTRY_INDIA, "IN" },
{ CTRY_INDONESIA, "ID" },
{ CTRY_IRAN, "IR" },
{ CTRY_IRELAND, "IE" },
{ CTRY_ISRAEL, "IL" },
{ CTRY_ITALY, "IT" },
{ CTRY_JAMAICA, "JM" },
{ CTRY_JAPAN, "JP" },
{ CTRY_JAPAN1, "J1" },
{ CTRY_JAPAN2, "J2" },
{ CTRY_JAPAN3, "J3" },
{ CTRY_JAPAN4, "J4" },
{ CTRY_JAPAN5, "J5" },
{ CTRY_JORDAN, "JO" },
{ CTRY_KAZAKHSTAN, "KZ" },
{ CTRY_KOREA_NORTH, "KP" },
{ CTRY_KOREA_ROC, "KR" },
{ CTRY_KOREA_ROC2, "K2" },
{ CTRY_KUWAIT, "KW" },
{ CTRY_LATVIA, "LV" },
{ CTRY_LEBANON, "LB" },
{ CTRY_LIECHTENSTEIN, "LI" },
{ CTRY_LITHUANIA, "LT" },
{ CTRY_LUXEMBOURG, "LU" },
{ CTRY_MACAU, "MO" },
{ CTRY_MACEDONIA, "MK" },
{ CTRY_MALAYSIA, "MY" },
{ CTRY_MEXICO, "MX" },
{ CTRY_MONACO, "MC" },
{ CTRY_MOROCCO, "MA" },
{ CTRY_NETHERLANDS, "NL" },
{ CTRY_NEW_ZEALAND, "NZ" },
{ CTRY_NORWAY, "NO" },
{ CTRY_OMAN, "OM" },
{ CTRY_PAKISTAN, "PK" },
{ CTRY_PANAMA, "PA" },
{ CTRY_PERU, "PE" },
{ CTRY_PHILIPPINES, "PH" },
{ CTRY_POLAND, "PL" },
{ CTRY_PORTUGAL, "PT" },
{ CTRY_PUERTO_RICO, "PR" },
{ CTRY_QATAR, "QA" },
{ CTRY_ROMANIA, "RO" },
{ CTRY_RUSSIA, "RU" },
{ CTRY_SAUDI_ARABIA, "SA" },
{ CTRY_SINGAPORE, "SG" },
{ CTRY_SLOVAKIA, "SK" },
{ CTRY_SLOVENIA, "SI" },
{ CTRY_SOUTH_AFRICA, "ZA" },
{ CTRY_SPAIN, "ES" },
{ CTRY_SWEDEN, "SE" },
{ CTRY_SWITZERLAND, "CH" },
{ CTRY_SYRIA, "SY" },
{ CTRY_TAIWAN, "TW" },
{ CTRY_THAILAND, "TH" },
{ CTRY_TRINIDAD_Y_TOBAGO, "TT" },
{ CTRY_TUNISIA, "TN" },
{ CTRY_TURKEY, "TR" },
{ CTRY_UKRAINE, "UA" },
{ CTRY_UAE, "AE" },
{ CTRY_UNITED_KINGDOM, "GB" },
{ CTRY_UNITED_STATES, "US" },
{ CTRY_URUGUAY, "UY" },
{ CTRY_UZBEKISTAN, "UZ" },
{ CTRY_VENEZUELA, "VE" },
{ CTRY_VIET_NAM, "VN" },
{ CTRY_YEMEN, "YE" },
{ CTRY_ZIMBABWE, "ZW" }
};
const char *
ieee80211_cctoiso(enum ISOCountryCode cc)
{
#define N(a) (sizeof(a) / sizeof(a[0]))
int i;
for (i = 0; i < N(country_strings); i++) {
if (country_strings[i].iso_code == cc)
return country_strings[i].iso_name;
}
return NULL;
#undef N
}
int
ieee80211_isotocc(const char iso[2])
{
#define N(a) (sizeof(a) / sizeof(a[0]))
int i;
for (i = 0; i < N(country_strings); i++) {
if (country_strings[i].iso_name[0] == iso[0] &&
country_strings[i].iso_name[1] == iso[1])
return country_strings[i].iso_code;
}
return -1;
#undef N
}