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