ieee80211.c revision 1.56.18.9
1 1.56.18.9 nat /* $NetBSD: ieee80211.c,v 1.56.18.9 2020/04/16 15:30:00 nat Exp $ */ 2 1.56.18.2 phil 3 1.1 dyoung /*- 4 1.56.18.1 phil * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 1.56.18.1 phil * 6 1.1 dyoung * Copyright (c) 2001 Atsushi Onoe 7 1.56.18.1 phil * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 8 1.1 dyoung * All rights reserved. 9 1.1 dyoung * 10 1.1 dyoung * Redistribution and use in source and binary forms, with or without 11 1.1 dyoung * modification, are permitted provided that the following conditions 12 1.1 dyoung * are met: 13 1.1 dyoung * 1. Redistributions of source code must retain the above copyright 14 1.1 dyoung * notice, this list of conditions and the following disclaimer. 15 1.1 dyoung * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 dyoung * notice, this list of conditions and the following disclaimer in the 17 1.1 dyoung * documentation and/or other materials provided with the distribution. 18 1.1 dyoung * 19 1.1 dyoung * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 1.1 dyoung * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 1.1 dyoung * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 1.1 dyoung * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 1.1 dyoung * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 1.1 dyoung * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 1.1 dyoung * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 1.1 dyoung * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 1.1 dyoung * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 1.1 dyoung * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 1.1 dyoung */ 30 1.1 dyoung 31 1.1 dyoung #include <sys/cdefs.h> 32 1.56.18.7 christos #ifdef __NetBSD__ 33 1.56.18.9 nat __KERNEL_RCSID(0, "$NetBSD: ieee80211.c,v 1.56.18.9 2020/04/16 15:30:00 nat Exp $"); 34 1.56.18.2 phil #endif 35 1.1 dyoung 36 1.1 dyoung /* 37 1.1 dyoung * IEEE 802.11 generic handler 38 1.1 dyoung */ 39 1.56.18.7 christos #ifdef _KERNEL_OPT 40 1.56.18.1 phil #include "opt_wlan.h" 41 1.56.18.7 christos #endif 42 1.1 dyoung 43 1.1 dyoung #include <sys/param.h> 44 1.56.18.1 phil #include <sys/systm.h> 45 1.1 dyoung #include <sys/kernel.h> 46 1.56.18.1 phil #include <sys/malloc.h> 47 1.1 dyoung #include <sys/socket.h> 48 1.56.18.1 phil #include <sys/sbuf.h> 49 1.56.18.1 phil 50 1.56.18.2 phil #ifdef __FreeBSD__ 51 1.56.18.1 phil #include <machine/stdarg.h> 52 1.56.18.2 phil #elif __NetBSD__ 53 1.56.18.4 phil #include <sys/once.h> 54 1.56.18.2 phil #include <sys/stdarg.h> 55 1.56.18.2 phil #else 56 1.56.18.2 phil #error 57 1.56.18.2 phil #endif 58 1.1 dyoung 59 1.1 dyoung #include <net/if.h> 60 1.56.18.2 phil #ifdef __FreeBSD__ 61 1.56.18.1 phil #include <net/if_var.h> 62 1.56.18.2 phil #endif 63 1.56.18.1 phil #include <net/if_dl.h> 64 1.1 dyoung #include <net/if_media.h> 65 1.56.18.1 phil #include <net/if_types.h> 66 1.56.18.2 phil #ifdef __FreeBSD__ 67 1.56.18.1 phil #include <net/ethernet.h> 68 1.56.18.2 phil #endif 69 1.56.18.2 phil #ifdef __NetBSD__ 70 1.56.18.2 phil #include <net/route.h> 71 1.56.18.2 phil #include <net/if_ether.h> 72 1.56.18.2 phil #endif 73 1.1 dyoung 74 1.1 dyoung #include <net80211/ieee80211_var.h> 75 1.56.18.1 phil #include <net80211/ieee80211_regdomain.h> 76 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 77 1.56.18.1 phil #include <net80211/ieee80211_superg.h> 78 1.56.18.1 phil #endif 79 1.56.18.1 phil #include <net80211/ieee80211_ratectl.h> 80 1.56.18.1 phil #include <net80211/ieee80211_vht.h> 81 1.1 dyoung 82 1.1 dyoung #include <net/bpf.h> 83 1.1 dyoung 84 1.56.18.2 phil #ifdef __NetBSD__ 85 1.56.18.2 phil #undef KASSERT 86 1.56.18.2 phil #define KASSERT(__cond, __complaint) FBSDKASSERT(__cond, __complaint) 87 1.56.18.2 phil #endif 88 1.56.18.2 phil 89 1.56.18.1 phil const char *ieee80211_phymode_name[IEEE80211_MODE_MAX] = { 90 1.56.18.1 phil [IEEE80211_MODE_AUTO] = "auto", 91 1.56.18.1 phil [IEEE80211_MODE_11A] = "11a", 92 1.56.18.1 phil [IEEE80211_MODE_11B] = "11b", 93 1.56.18.1 phil [IEEE80211_MODE_11G] = "11g", 94 1.56.18.1 phil [IEEE80211_MODE_FH] = "FH", 95 1.56.18.1 phil [IEEE80211_MODE_TURBO_A] = "turboA", 96 1.56.18.1 phil [IEEE80211_MODE_TURBO_G] = "turboG", 97 1.56.18.1 phil [IEEE80211_MODE_STURBO_A] = "sturboA", 98 1.56.18.1 phil [IEEE80211_MODE_HALF] = "half", 99 1.56.18.1 phil [IEEE80211_MODE_QUARTER] = "quarter", 100 1.56.18.1 phil [IEEE80211_MODE_11NA] = "11na", 101 1.56.18.1 phil [IEEE80211_MODE_11NG] = "11ng", 102 1.56.18.1 phil [IEEE80211_MODE_VHT_2GHZ] = "11acg", 103 1.56.18.1 phil [IEEE80211_MODE_VHT_5GHZ] = "11ac", 104 1.56.18.1 phil }; 105 1.56.18.1 phil /* map ieee80211_opmode to the corresponding capability bit */ 106 1.56.18.1 phil const int ieee80211_opcap[IEEE80211_OPMODE_MAX] = { 107 1.56.18.1 phil [IEEE80211_M_IBSS] = IEEE80211_C_IBSS, 108 1.56.18.1 phil [IEEE80211_M_WDS] = IEEE80211_C_WDS, 109 1.56.18.1 phil [IEEE80211_M_STA] = IEEE80211_C_STA, 110 1.56.18.1 phil [IEEE80211_M_AHDEMO] = IEEE80211_C_AHDEMO, 111 1.56.18.1 phil [IEEE80211_M_HOSTAP] = IEEE80211_C_HOSTAP, 112 1.56.18.1 phil [IEEE80211_M_MONITOR] = IEEE80211_C_MONITOR, 113 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_MESH 114 1.56.18.1 phil [IEEE80211_M_MBSS] = IEEE80211_C_MBSS, 115 1.4 dyoung #endif 116 1.54 christos }; 117 1.54 christos 118 1.56.18.1 phil const uint8_t ieee80211broadcastaddr[IEEE80211_ADDR_LEN] = 119 1.56.18.1 phil { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 120 1.20 dyoung 121 1.56.18.1 phil static void ieee80211_syncflag_locked(struct ieee80211com *ic, int flag); 122 1.56.18.1 phil static void ieee80211_syncflag_ht_locked(struct ieee80211com *ic, int flag); 123 1.56.18.1 phil static void ieee80211_syncflag_ext_locked(struct ieee80211com *ic, int flag); 124 1.56.18.1 phil static void ieee80211_syncflag_vht_locked(struct ieee80211com *ic, int flag); 125 1.56.18.1 phil static int ieee80211_media_setup(struct ieee80211com *ic, 126 1.56.18.1 phil struct ifmedia *media, int caps, int addsta, 127 1.56.18.1 phil ifm_change_cb_t media_change, ifm_stat_cb_t media_stat); 128 1.56.18.1 phil static int media_status(enum ieee80211_opmode, 129 1.56.18.1 phil const struct ieee80211_channel *); 130 1.56.18.1 phil static uint64_t ieee80211_get_counter(struct ifnet *, ift_counter); 131 1.1 dyoung 132 1.56.18.2 phil 133 1.56.18.1 phil MALLOC_DEFINE(M_80211_VAP, "80211vap", "802.11 vap state"); 134 1.37 dyoung 135 1.56.18.1 phil /* 136 1.56.18.1 phil * Default supported rates for 802.11 operation (in IEEE .5Mb units). 137 1.56.18.1 phil */ 138 1.56.18.1 phil #define B(r) ((r) | IEEE80211_RATE_BASIC) 139 1.56.18.1 phil static const struct ieee80211_rateset ieee80211_rateset_11a = 140 1.56.18.1 phil { 8, { B(12), 18, B(24), 36, B(48), 72, 96, 108 } }; 141 1.56.18.1 phil static const struct ieee80211_rateset ieee80211_rateset_half = 142 1.56.18.1 phil { 8, { B(6), 9, B(12), 18, B(24), 36, 48, 54 } }; 143 1.56.18.1 phil static const struct ieee80211_rateset ieee80211_rateset_quarter = 144 1.56.18.1 phil { 8, { B(3), 4, B(6), 9, B(12), 18, 24, 27 } }; 145 1.56.18.1 phil static const struct ieee80211_rateset ieee80211_rateset_11b = 146 1.56.18.1 phil { 4, { B(2), B(4), B(11), B(22) } }; 147 1.56.18.1 phil /* NB: OFDM rates are handled specially based on mode */ 148 1.56.18.1 phil static const struct ieee80211_rateset ieee80211_rateset_11g = 149 1.56.18.1 phil { 12, { B(2), B(4), B(11), B(22), 12, 18, 24, 36, 48, 72, 96, 108 } }; 150 1.56.18.1 phil #undef B 151 1.56.18.1 phil 152 1.56.18.1 phil static int set_vht_extchan(struct ieee80211_channel *c); 153 1.56.18.1 phil 154 1.56.18.1 phil /* 155 1.56.18.1 phil * Fill in 802.11 available channel set, mark 156 1.56.18.1 phil * all available channels as active, and pick 157 1.56.18.1 phil * a default channel if not already specified. 158 1.56.18.1 phil */ 159 1.56.18.1 phil void 160 1.56.18.1 phil ieee80211_chan_init(struct ieee80211com *ic) 161 1.37 dyoung { 162 1.56.18.1 phil #define DEFAULTRATES(m, def) do { \ 163 1.56.18.1 phil if (ic->ic_sup_rates[m].rs_nrates == 0) \ 164 1.56.18.1 phil ic->ic_sup_rates[m] = def; \ 165 1.56.18.1 phil } while (0) 166 1.56.18.1 phil struct ieee80211_channel *c; 167 1.37 dyoung int i; 168 1.37 dyoung 169 1.56.18.1 phil KASSERT(0 < ic->ic_nchans && ic->ic_nchans <= IEEE80211_CHAN_MAX, 170 1.56.18.1 phil ("invalid number of channels specified: %u", ic->ic_nchans)); 171 1.56.18.1 phil memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail)); 172 1.56.18.1 phil memset(ic->ic_modecaps, 0, sizeof(ic->ic_modecaps)); 173 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_AUTO); 174 1.56.18.1 phil for (i = 0; i < ic->ic_nchans; i++) { 175 1.56.18.1 phil c = &ic->ic_channels[i]; 176 1.56.18.1 phil KASSERT(c->ic_flags != 0, ("channel with no flags")); 177 1.56.18.1 phil /* 178 1.56.18.1 phil * Help drivers that work only with frequencies by filling 179 1.56.18.1 phil * in IEEE channel #'s if not already calculated. Note this 180 1.56.18.1 phil * mimics similar work done in ieee80211_setregdomain when 181 1.56.18.1 phil * changing regulatory state. 182 1.56.18.1 phil */ 183 1.56.18.1 phil if (c->ic_ieee == 0) 184 1.56.18.1 phil c->ic_ieee = ieee80211_mhz2ieee(c->ic_freq,c->ic_flags); 185 1.56.18.1 phil 186 1.56.18.1 phil /* 187 1.56.18.1 phil * Setup the HT40/VHT40 upper/lower bits. 188 1.56.18.1 phil * The VHT80 math is done elsewhere. 189 1.56.18.1 phil */ 190 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT40(c) && c->ic_extieee == 0) 191 1.56.18.1 phil c->ic_extieee = ieee80211_mhz2ieee(c->ic_freq + 192 1.56.18.1 phil (IEEE80211_IS_CHAN_HT40U(c) ? 20 : -20), 193 1.56.18.1 phil c->ic_flags); 194 1.56.18.1 phil 195 1.56.18.1 phil /* Update VHT math */ 196 1.56.18.1 phil /* 197 1.56.18.1 phil * XXX VHT again, note that this assumes VHT80 channels 198 1.56.18.1 phil * are legit already 199 1.56.18.1 phil */ 200 1.56.18.1 phil set_vht_extchan(c); 201 1.56.18.1 phil 202 1.56.18.1 phil /* default max tx power to max regulatory */ 203 1.56.18.1 phil if (c->ic_maxpower == 0) 204 1.56.18.1 phil c->ic_maxpower = 2*c->ic_maxregpower; 205 1.56.18.1 phil setbit(ic->ic_chan_avail, c->ic_ieee); 206 1.56.18.1 phil /* 207 1.56.18.1 phil * Identify mode capabilities. 208 1.56.18.1 phil */ 209 1.56.18.1 phil if (IEEE80211_IS_CHAN_A(c)) 210 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_11A); 211 1.56.18.1 phil if (IEEE80211_IS_CHAN_B(c)) 212 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_11B); 213 1.56.18.1 phil if (IEEE80211_IS_CHAN_ANYG(c)) 214 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_11G); 215 1.56.18.1 phil if (IEEE80211_IS_CHAN_FHSS(c)) 216 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_FH); 217 1.56.18.1 phil if (IEEE80211_IS_CHAN_108A(c)) 218 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_TURBO_A); 219 1.56.18.1 phil if (IEEE80211_IS_CHAN_108G(c)) 220 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_TURBO_G); 221 1.56.18.1 phil if (IEEE80211_IS_CHAN_ST(c)) 222 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_STURBO_A); 223 1.56.18.1 phil if (IEEE80211_IS_CHAN_HALF(c)) 224 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_HALF); 225 1.56.18.1 phil if (IEEE80211_IS_CHAN_QUARTER(c)) 226 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_QUARTER); 227 1.56.18.1 phil if (IEEE80211_IS_CHAN_HTA(c)) 228 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_11NA); 229 1.56.18.1 phil if (IEEE80211_IS_CHAN_HTG(c)) 230 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_11NG); 231 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHTA(c)) 232 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_VHT_5GHZ); 233 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHTG(c)) 234 1.56.18.1 phil setbit(ic->ic_modecaps, IEEE80211_MODE_VHT_2GHZ); 235 1.56.18.1 phil } 236 1.56.18.1 phil /* initialize candidate channels to all available */ 237 1.56.18.1 phil memcpy(ic->ic_chan_active, ic->ic_chan_avail, 238 1.56.18.1 phil sizeof(ic->ic_chan_avail)); 239 1.56.18.1 phil 240 1.56.18.1 phil /* sort channel table to allow lookup optimizations */ 241 1.56.18.1 phil ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 242 1.56.18.1 phil 243 1.56.18.1 phil /* invalidate any previous state */ 244 1.56.18.1 phil ic->ic_bsschan = IEEE80211_CHAN_ANYC; 245 1.56.18.1 phil ic->ic_prevchan = NULL; 246 1.56.18.1 phil ic->ic_csa_newchan = NULL; 247 1.56.18.1 phil /* arbitrarily pick the first channel */ 248 1.56.18.1 phil ic->ic_curchan = &ic->ic_channels[0]; 249 1.56.18.1 phil ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan); 250 1.56.18.1 phil 251 1.56.18.1 phil /* fillin well-known rate sets if driver has not specified */ 252 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_11B, ieee80211_rateset_11b); 253 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_11G, ieee80211_rateset_11g); 254 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_11A, ieee80211_rateset_11a); 255 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_TURBO_A, ieee80211_rateset_11a); 256 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_TURBO_G, ieee80211_rateset_11g); 257 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_STURBO_A, ieee80211_rateset_11a); 258 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_HALF, ieee80211_rateset_half); 259 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_QUARTER, ieee80211_rateset_quarter); 260 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_11NA, ieee80211_rateset_11a); 261 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_11NG, ieee80211_rateset_11g); 262 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_VHT_2GHZ, ieee80211_rateset_11g); 263 1.56.18.1 phil DEFAULTRATES(IEEE80211_MODE_VHT_5GHZ, ieee80211_rateset_11a); 264 1.56.18.1 phil 265 1.56.18.1 phil /* 266 1.56.18.1 phil * Setup required information to fill the mcsset field, if driver did 267 1.56.18.1 phil * not. Assume a 2T2R setup for historic reasons. 268 1.56.18.1 phil */ 269 1.56.18.1 phil if (ic->ic_rxstream == 0) 270 1.56.18.1 phil ic->ic_rxstream = 2; 271 1.56.18.1 phil if (ic->ic_txstream == 0) 272 1.56.18.1 phil ic->ic_txstream = 2; 273 1.56.18.1 phil 274 1.56.18.1 phil ieee80211_init_suphtrates(ic); 275 1.56.18.1 phil 276 1.56.18.1 phil /* 277 1.56.18.1 phil * Set auto mode to reset active channel state and any desired channel. 278 1.56.18.1 phil */ 279 1.56.18.1 phil (void) ieee80211_setmode(ic, IEEE80211_MODE_AUTO); 280 1.56.18.1 phil #undef DEFAULTRATES 281 1.56.18.1 phil } 282 1.56.18.1 phil 283 1.56.18.1 phil static void 284 1.56.18.1 phil null_update_mcast(struct ieee80211com *ic) 285 1.56.18.1 phil { 286 1.56.18.1 phil 287 1.56.18.1 phil ic_printf(ic, "need multicast update callback\n"); 288 1.56.18.1 phil } 289 1.56.18.1 phil 290 1.56.18.1 phil static void 291 1.56.18.1 phil null_update_promisc(struct ieee80211com *ic) 292 1.56.18.1 phil { 293 1.56.18.1 phil 294 1.56.18.1 phil ic_printf(ic, "need promiscuous mode update callback\n"); 295 1.37 dyoung } 296 1.37 dyoung 297 1.37 dyoung static void 298 1.56.18.1 phil null_update_chw(struct ieee80211com *ic) 299 1.56.18.1 phil { 300 1.56.18.1 phil 301 1.56.18.1 phil ic_printf(ic, "%s: need callback\n", __func__); 302 1.56.18.1 phil } 303 1.56.18.1 phil 304 1.56.18.2 phil #ifdef __FreeBSD__ 305 1.56.18.1 phil int 306 1.56.18.1 phil ic_printf(struct ieee80211com *ic, const char * fmt, ...) 307 1.56.18.1 phil { 308 1.56.18.1 phil va_list ap; 309 1.56.18.1 phil int retval; 310 1.56.18.1 phil 311 1.56.18.1 phil retval = printf("%s: ", ic->ic_name); 312 1.56.18.1 phil va_start(ap, fmt); 313 1.56.18.1 phil retval += vprintf(fmt, ap); 314 1.56.18.1 phil va_end(ap); 315 1.56.18.1 phil return (retval); 316 1.56.18.1 phil } 317 1.56.18.2 phil #elif __NetBSD__ 318 1.56.18.2 phil void 319 1.56.18.2 phil ic_printf(struct ieee80211com *ic, const char * fmt, ...) 320 1.56.18.2 phil { 321 1.56.18.2 phil va_list ap; 322 1.56.18.2 phil 323 1.56.18.2 phil printf("%s: ", ic->ic_name); 324 1.56.18.2 phil va_start(ap, fmt); 325 1.56.18.2 phil vprintf(fmt, ap); 326 1.56.18.2 phil va_end(ap); 327 1.56.18.2 phil } 328 1.56.18.2 phil #endif 329 1.56.18.1 phil 330 1.56.18.1 phil static LIST_HEAD(, ieee80211com) ic_head = LIST_HEAD_INITIALIZER(ic_head); 331 1.56.18.2 phil #ifdef __FreeBSD__ 332 1.56.18.1 phil static struct mtx ic_list_mtx; 333 1.56.18.1 phil MTX_SYSINIT(ic_list, &ic_list_mtx, "ieee80211com list", MTX_DEF); 334 1.56.18.2 phil #elif __NetBSD__ 335 1.56.18.2 phil static kmutex_t ic_list_mtx; 336 1.56.18.2 phil #endif 337 1.56.18.1 phil 338 1.56.18.2 phil #if notyet 339 1.56.18.1 phil static int 340 1.56.18.1 phil sysctl_ieee80211coms(SYSCTL_HANDLER_ARGS) 341 1.56.18.1 phil { 342 1.56.18.1 phil struct ieee80211com *ic; 343 1.56.18.1 phil struct sbuf sb; 344 1.56.18.1 phil char *sp; 345 1.56.18.1 phil int error; 346 1.56.18.1 phil 347 1.56.18.1 phil error = sysctl_wire_old_buffer(req, 0); 348 1.56.18.1 phil if (error) 349 1.56.18.1 phil return (error); 350 1.56.18.1 phil sbuf_new_for_sysctl(&sb, NULL, 8, req); 351 1.56.18.1 phil sbuf_clear_flags(&sb, SBUF_INCLUDENUL); 352 1.56.18.1 phil sp = ""; 353 1.56.18.1 phil mtx_lock(&ic_list_mtx); 354 1.56.18.1 phil LIST_FOREACH(ic, &ic_head, ic_next) { 355 1.56.18.1 phil sbuf_printf(&sb, "%s%s", sp, ic->ic_name); 356 1.56.18.1 phil sp = " "; 357 1.56.18.1 phil } 358 1.56.18.1 phil mtx_unlock(&ic_list_mtx); 359 1.56.18.1 phil error = sbuf_finish(&sb); 360 1.56.18.1 phil sbuf_delete(&sb); 361 1.56.18.1 phil return (error); 362 1.56.18.1 phil } 363 1.56.18.1 phil 364 1.56.18.1 phil SYSCTL_PROC(_net_wlan, OID_AUTO, devices, 365 1.56.18.1 phil CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, 366 1.56.18.1 phil sysctl_ieee80211coms, "A", "names of available 802.11 devices"); 367 1.56.18.2 phil #endif 368 1.56.18.1 phil 369 1.56.18.4 phil #if __NetBSD__ 370 1.56.18.4 phil static int 371 1.56.18.4 phil ic_list_mtx_init (void) 372 1.56.18.4 phil { 373 1.56.18.4 phil mutex_init(&ic_list_mtx, MUTEX_DEFAULT, IPL_NET); 374 1.56.18.4 phil ieee80211_auth_setup(); 375 1.56.18.4 phil return 0; 376 1.56.18.4 phil } 377 1.56.18.4 phil #endif 378 1.56.18.4 phil 379 1.56.18.1 phil /* 380 1.56.18.1 phil * Attach/setup the common net80211 state. Called by 381 1.56.18.1 phil * the driver on attach to prior to creating any vap's. 382 1.56.18.1 phil */ 383 1.56.18.1 phil void 384 1.56.18.1 phil ieee80211_ifattach(struct ieee80211com *ic) 385 1.56.18.1 phil { 386 1.56.18.3 phil #if __NetBSD__ 387 1.56.18.4 phil static ONCE_DECL(ic_list_mtx_once); 388 1.56.18.4 phil RUN_ONCE(&ic_list_mtx_once, ic_list_mtx_init); 389 1.56.18.3 phil #endif 390 1.56.18.1 phil 391 1.56.18.1 phil IEEE80211_LOCK_INIT(ic, ic->ic_name); 392 1.56.18.1 phil IEEE80211_TX_LOCK_INIT(ic, ic->ic_name); 393 1.56.18.1 phil TAILQ_INIT(&ic->ic_vaps); 394 1.56.18.1 phil 395 1.56.18.3 phil #if __FreeBSD__ 396 1.56.18.1 phil /* Create a taskqueue for all state changes */ 397 1.56.18.1 phil ic->ic_tq = taskqueue_create("ic_taskq", M_WAITOK | M_ZERO, 398 1.56.18.1 phil taskqueue_thread_enqueue, &ic->ic_tq); 399 1.56.18.1 phil taskqueue_start_threads(&ic->ic_tq, 1, PI_NET, "%s net80211 taskq", 400 1.56.18.1 phil ic->ic_name); 401 1.56.18.1 phil ic->ic_ierrors = counter_u64_alloc(M_WAITOK); 402 1.56.18.1 phil ic->ic_oerrors = counter_u64_alloc(M_WAITOK); 403 1.56.18.5 phil #elif __NetBSD__ 404 1.56.18.5 phil /* 405 1.56.18.5 phil * Create a workqueue for all state changes, ieee80211_netbsd.* 406 1.56.18.5 phil * has glue to translate taskqueue functions to workqueue. 407 1.56.18.5 phil */ 408 1.56.18.5 phil if (workqueue_create(&ic->ic_tq, "net80211_wq", 409 1.56.18.5 phil ieee80211_runwork, ic, PRI_SOFTNET, IPL_NET, WQ_MPSAFE)) 410 1.56.18.5 phil panic("net80211 workqueue not created"); 411 1.56.18.3 phil ic->ic_ierrors = 0; 412 1.56.18.3 phil ic->ic_oerrors = 0; 413 1.56.18.2 phil #endif 414 1.56.18.3 phil 415 1.56.18.1 phil /* 416 1.56.18.1 phil * Fill in 802.11 available channel set, mark all 417 1.56.18.1 phil * available channels as active, and pick a default 418 1.56.18.1 phil * channel if not already specified. 419 1.56.18.1 phil */ 420 1.56.18.1 phil ieee80211_chan_init(ic); 421 1.56.18.1 phil 422 1.56.18.1 phil ic->ic_update_mcast = null_update_mcast; 423 1.56.18.1 phil ic->ic_update_promisc = null_update_promisc; 424 1.56.18.1 phil ic->ic_update_chw = null_update_chw; 425 1.56.18.1 phil 426 1.56.18.1 phil ic->ic_hash_key = arc4random(); 427 1.56.18.1 phil ic->ic_bintval = IEEE80211_BINTVAL_DEFAULT; 428 1.56.18.1 phil ic->ic_lintval = ic->ic_bintval; 429 1.56.18.1 phil ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX; 430 1.56.18.1 phil 431 1.56.18.1 phil ieee80211_crypto_attach(ic); 432 1.56.18.1 phil ieee80211_node_attach(ic); 433 1.56.18.1 phil ieee80211_power_attach(ic); 434 1.56.18.1 phil ieee80211_proto_attach(ic); 435 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 436 1.56.18.1 phil ieee80211_superg_attach(ic); 437 1.56.18.1 phil #endif 438 1.56.18.1 phil ieee80211_ht_attach(ic); 439 1.56.18.1 phil ieee80211_vht_attach(ic); 440 1.56.18.1 phil ieee80211_scan_attach(ic); 441 1.56.18.1 phil ieee80211_regdomain_attach(ic); 442 1.56.18.1 phil ieee80211_dfs_attach(ic); 443 1.56.18.1 phil 444 1.56.18.1 phil ieee80211_sysctl_attach(ic); 445 1.56.18.1 phil 446 1.56.18.1 phil mtx_lock(&ic_list_mtx); 447 1.56.18.1 phil LIST_INSERT_HEAD(&ic_head, ic, ic_next); 448 1.56.18.1 phil mtx_unlock(&ic_list_mtx); 449 1.56.18.1 phil } 450 1.56.18.1 phil 451 1.56.18.1 phil /* 452 1.56.18.1 phil * Detach net80211 state on device detach. Tear down 453 1.56.18.1 phil * all vap's and reclaim all common state prior to the 454 1.56.18.1 phil * device state going away. Note we may call back into 455 1.56.18.1 phil * driver; it must be prepared for this. 456 1.56.18.1 phil */ 457 1.56.18.1 phil void 458 1.56.18.1 phil ieee80211_ifdetach(struct ieee80211com *ic) 459 1.56.18.1 phil { 460 1.56.18.1 phil struct ieee80211vap *vap; 461 1.56.18.1 phil 462 1.56.18.1 phil mtx_lock(&ic_list_mtx); 463 1.56.18.1 phil LIST_REMOVE(ic, ic_next); 464 1.56.18.1 phil mtx_unlock(&ic_list_mtx); 465 1.56.18.1 phil 466 1.56.18.5 phil #if __FreeBSD__ 467 1.56.18.1 phil taskqueue_drain(taskqueue_thread, &ic->ic_restart_task); 468 1.56.18.5 phil #endif 469 1.56.18.1 phil 470 1.56.18.1 phil /* 471 1.56.18.1 phil * The VAP is responsible for setting and clearing 472 1.56.18.1 phil * the VIMAGE context. 473 1.56.18.1 phil */ 474 1.56.18.1 phil while ((vap = TAILQ_FIRST(&ic->ic_vaps)) != NULL) 475 1.56.18.1 phil ieee80211_vap_destroy(vap); 476 1.56.18.1 phil ieee80211_waitfor_parent(ic); 477 1.56.18.1 phil 478 1.56.18.1 phil ieee80211_sysctl_detach(ic); 479 1.56.18.1 phil ieee80211_dfs_detach(ic); 480 1.56.18.1 phil ieee80211_regdomain_detach(ic); 481 1.56.18.1 phil ieee80211_scan_detach(ic); 482 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 483 1.56.18.1 phil ieee80211_superg_detach(ic); 484 1.56.18.1 phil #endif 485 1.56.18.1 phil ieee80211_vht_detach(ic); 486 1.56.18.1 phil ieee80211_ht_detach(ic); 487 1.56.18.1 phil /* NB: must be called before ieee80211_node_detach */ 488 1.56.18.1 phil ieee80211_proto_detach(ic); 489 1.56.18.1 phil ieee80211_crypto_detach(ic); 490 1.56.18.1 phil ieee80211_power_detach(ic); 491 1.56.18.1 phil ieee80211_node_detach(ic); 492 1.56.18.1 phil 493 1.56.18.1 phil counter_u64_free(ic->ic_ierrors); 494 1.56.18.1 phil counter_u64_free(ic->ic_oerrors); 495 1.56.18.1 phil 496 1.56.18.1 phil taskqueue_free(ic->ic_tq); 497 1.56.18.1 phil IEEE80211_TX_LOCK_DESTROY(ic); 498 1.56.18.1 phil IEEE80211_LOCK_DESTROY(ic); 499 1.56.18.1 phil } 500 1.56.18.1 phil 501 1.56.18.1 phil struct ieee80211com * 502 1.56.18.1 phil ieee80211_find_com(const char *name) 503 1.37 dyoung { 504 1.56.18.1 phil struct ieee80211com *ic; 505 1.56.18.1 phil 506 1.56.18.1 phil mtx_lock(&ic_list_mtx); 507 1.56.18.1 phil LIST_FOREACH(ic, &ic_head, ic_next) 508 1.56.18.1 phil if (strcmp(ic->ic_name, name) == 0) 509 1.56.18.1 phil break; 510 1.56.18.1 phil mtx_unlock(&ic_list_mtx); 511 1.56.18.1 phil 512 1.56.18.1 phil return (ic); 513 1.56.18.1 phil } 514 1.56.18.1 phil 515 1.56.18.1 phil void 516 1.56.18.1 phil ieee80211_iterate_coms(ieee80211_com_iter_func *f, void *arg) 517 1.56.18.1 phil { 518 1.56.18.1 phil struct ieee80211com *ic; 519 1.37 dyoung 520 1.56.18.1 phil mtx_lock(&ic_list_mtx); 521 1.56.18.1 phil LIST_FOREACH(ic, &ic_head, ic_next) 522 1.56.18.1 phil (*f)(arg, ic); 523 1.56.18.1 phil mtx_unlock(&ic_list_mtx); 524 1.37 dyoung } 525 1.37 dyoung 526 1.37 dyoung /* 527 1.37 dyoung * Default reset method for use with the ioctl support. This 528 1.37 dyoung * method is invoked after any state change in the 802.11 529 1.37 dyoung * layer that should be propagated to the hardware but not 530 1.37 dyoung * require re-initialization of the 802.11 state machine (e.g 531 1.37 dyoung * rescanning for an ap). We always return ENETRESET which 532 1.37 dyoung * should cause the driver to re-initialize the device. Drivers 533 1.37 dyoung * can override this method to implement more optimized support. 534 1.37 dyoung */ 535 1.37 dyoung static int 536 1.56.18.1 phil default_reset(struct ieee80211vap *vap, u_long cmd) 537 1.37 dyoung { 538 1.37 dyoung return ENETRESET; 539 1.37 dyoung } 540 1.37 dyoung 541 1.56.18.1 phil /* 542 1.56.18.1 phil * Default for updating the VAP default TX key index. 543 1.56.18.1 phil * 544 1.56.18.1 phil * Drivers that support TX offload as well as hardware encryption offload 545 1.56.18.1 phil * may need to be informed of key index changes separate from the key 546 1.56.18.1 phil * update. 547 1.56.18.1 phil */ 548 1.56.18.1 phil static void 549 1.56.18.1 phil default_update_deftxkey(struct ieee80211vap *vap, ieee80211_keyix kid) 550 1.1 dyoung { 551 1.1 dyoung 552 1.56.18.1 phil /* XXX assert validity */ 553 1.56.18.1 phil /* XXX assert we're in a key update block */ 554 1.56.18.1 phil vap->iv_def_txkey = kid; 555 1.56.18.1 phil } 556 1.37 dyoung 557 1.56.18.1 phil /* 558 1.56.18.1 phil * Add underlying device errors to vap errors. 559 1.56.18.1 phil */ 560 1.56.18.2 phil static __unused uint64_t 561 1.56.18.1 phil ieee80211_get_counter(struct ifnet *ifp, ift_counter cnt) 562 1.56.18.1 phil { 563 1.56.18.1 phil struct ieee80211vap *vap = ifp->if_softc; 564 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 565 1.56.18.1 phil uint64_t rv; 566 1.56.18.1 phil 567 1.56.18.1 phil rv = if_get_counter_default(ifp, cnt); 568 1.56.18.1 phil switch (cnt) { 569 1.56.18.1 phil case IFCOUNTER_OERRORS: 570 1.56.18.1 phil rv += counter_u64_fetch(ic->ic_oerrors); 571 1.56.18.1 phil break; 572 1.56.18.1 phil case IFCOUNTER_IERRORS: 573 1.56.18.1 phil rv += counter_u64_fetch(ic->ic_ierrors); 574 1.56.18.1 phil break; 575 1.56.18.1 phil default: 576 1.56.18.1 phil break; 577 1.56.18.1 phil } 578 1.1 dyoung 579 1.56.18.1 phil return (rv); 580 1.56.18.1 phil } 581 1.56.18.1 phil 582 1.56.18.1 phil /* 583 1.56.18.1 phil * Prepare a vap for use. Drivers use this call to 584 1.56.18.1 phil * setup net80211 state in new vap's prior attaching 585 1.56.18.1 phil * them with ieee80211_vap_attach (below). 586 1.56.18.1 phil */ 587 1.56.18.1 phil int 588 1.56.18.1 phil ieee80211_vap_setup(struct ieee80211com *ic, struct ieee80211vap *vap, 589 1.56.18.1 phil const char name[IFNAMSIZ], int unit, enum ieee80211_opmode opmode, 590 1.56.18.1 phil int flags, const uint8_t bssid[IEEE80211_ADDR_LEN]) 591 1.56.18.1 phil { 592 1.56.18.1 phil struct ifnet *ifp; 593 1.56.18.1 phil 594 1.56.18.1 phil ifp = if_alloc(IFT_ETHER); 595 1.56.18.1 phil if (ifp == NULL) { 596 1.56.18.1 phil ic_printf(ic, "%s: unable to allocate ifnet\n", 597 1.56.18.1 phil __func__); 598 1.56.18.1 phil return ENOMEM; 599 1.56.18.1 phil } 600 1.56.18.3 phil #if __NetBSD__ 601 1.56.18.3 phil if_initialize(ifp); 602 1.56.18.3 phil #endif 603 1.56.18.1 phil if_initname(ifp, name, unit); 604 1.56.18.1 phil ifp->if_softc = vap; /* back pointer */ 605 1.56.18.1 phil ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; 606 1.56.18.1 phil ifp->if_transmit = ieee80211_vap_transmit; 607 1.56.18.3 phil #if __FreeBSD__ 608 1.56.18.1 phil ifp->if_qflush = ieee80211_vap_qflush; 609 1.56.18.2 phil #endif 610 1.56.18.1 phil ifp->if_ioctl = ieee80211_ioctl; 611 1.56.18.1 phil ifp->if_init = ieee80211_init; 612 1.56.18.3 phil 613 1.56.18.3 phil #if notyet 614 1.56.18.1 phil ifp->if_get_counter = ieee80211_get_counter; 615 1.56.18.2 phil #endif 616 1.56.18.1 phil vap->iv_ifp = ifp; 617 1.56.18.1 phil vap->iv_ic = ic; 618 1.56.18.1 phil vap->iv_flags = ic->ic_flags; /* propagate common flags */ 619 1.56.18.1 phil vap->iv_flags_ext = ic->ic_flags_ext; 620 1.56.18.1 phil vap->iv_flags_ven = ic->ic_flags_ven; 621 1.56.18.1 phil vap->iv_caps = ic->ic_caps &~ IEEE80211_C_OPMODE; 622 1.56.18.1 phil 623 1.56.18.1 phil /* 11n capabilities - XXX methodize */ 624 1.56.18.1 phil vap->iv_htcaps = ic->ic_htcaps; 625 1.56.18.1 phil vap->iv_htextcaps = ic->ic_htextcaps; 626 1.56.18.1 phil 627 1.56.18.1 phil /* 11ac capabilities - XXX methodize */ 628 1.56.18.1 phil vap->iv_vhtcaps = ic->ic_vhtcaps; 629 1.56.18.1 phil vap->iv_vhtextcaps = ic->ic_vhtextcaps; 630 1.56.18.1 phil 631 1.56.18.1 phil vap->iv_opmode = opmode; 632 1.56.18.1 phil vap->iv_caps |= ieee80211_opcap[opmode]; 633 1.56.18.6 phil /* NNN Done in vap_attach, where is the correct place? */ 634 1.56.18.1 phil IEEE80211_ADDR_COPY(vap->iv_myaddr, ic->ic_macaddr); 635 1.56.18.1 phil switch (opmode) { 636 1.56.18.1 phil case IEEE80211_M_WDS: 637 1.56.18.1 phil /* 638 1.56.18.1 phil * WDS links must specify the bssid of the far end. 639 1.56.18.1 phil * For legacy operation this is a static relationship. 640 1.56.18.1 phil * For non-legacy operation the station must associate 641 1.56.18.1 phil * and be authorized to pass traffic. Plumbing the 642 1.56.18.1 phil * vap to the proper node happens when the vap 643 1.56.18.1 phil * transitions to RUN state. 644 1.56.18.1 phil */ 645 1.56.18.1 phil IEEE80211_ADDR_COPY(vap->iv_des_bssid, bssid); 646 1.56.18.1 phil vap->iv_flags |= IEEE80211_F_DESBSSID; 647 1.56.18.1 phil if (flags & IEEE80211_CLONE_WDSLEGACY) 648 1.56.18.1 phil vap->iv_flags_ext |= IEEE80211_FEXT_WDSLEGACY; 649 1.56.18.1 phil break; 650 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_TDMA 651 1.56.18.1 phil case IEEE80211_M_AHDEMO: 652 1.56.18.1 phil if (flags & IEEE80211_CLONE_TDMA) { 653 1.56.18.1 phil /* NB: checked before clone operation allowed */ 654 1.56.18.1 phil KASSERT(ic->ic_caps & IEEE80211_C_TDMA, 655 1.56.18.1 phil ("not TDMA capable, ic_caps 0x%x", ic->ic_caps)); 656 1.1 dyoung /* 657 1.56.18.1 phil * Propagate TDMA capability to mark vap; this 658 1.56.18.1 phil * cannot be removed and is used to distinguish 659 1.56.18.1 phil * regular ahdemo operation from ahdemo+tdma. 660 1.1 dyoung */ 661 1.56.18.1 phil vap->iv_caps |= IEEE80211_C_TDMA; 662 1.1 dyoung } 663 1.56.18.1 phil break; 664 1.56.18.1 phil #endif 665 1.56.18.1 phil default: 666 1.56.18.1 phil break; 667 1.1 dyoung } 668 1.56.18.1 phil /* auto-enable s/w beacon miss support */ 669 1.56.18.1 phil if (flags & IEEE80211_CLONE_NOBEACONS) 670 1.56.18.1 phil vap->iv_flags_ext |= IEEE80211_FEXT_SWBMISS; 671 1.56.18.1 phil /* auto-generated or user supplied MAC address */ 672 1.56.18.1 phil if (flags & (IEEE80211_CLONE_BSSID|IEEE80211_CLONE_MACADDR)) 673 1.56.18.1 phil vap->iv_flags_ext |= IEEE80211_FEXT_UNIQMAC; 674 1.56.18.1 phil /* 675 1.56.18.1 phil * Enable various functionality by default if we're 676 1.56.18.1 phil * capable; the driver can override us if it knows better. 677 1.56.18.1 phil */ 678 1.56.18.1 phil if (vap->iv_caps & IEEE80211_C_WME) 679 1.56.18.1 phil vap->iv_flags |= IEEE80211_F_WME; 680 1.56.18.1 phil if (vap->iv_caps & IEEE80211_C_BURST) 681 1.56.18.1 phil vap->iv_flags |= IEEE80211_F_BURST; 682 1.56.18.1 phil /* NB: bg scanning only makes sense for station mode right now */ 683 1.56.18.1 phil if (vap->iv_opmode == IEEE80211_M_STA && 684 1.56.18.1 phil (vap->iv_caps & IEEE80211_C_BGSCAN)) 685 1.56.18.1 phil vap->iv_flags |= IEEE80211_F_BGSCAN; 686 1.56.18.1 phil vap->iv_flags |= IEEE80211_F_DOTH; /* XXX no cap, just ena */ 687 1.56.18.1 phil /* NB: DFS support only makes sense for ap mode right now */ 688 1.56.18.1 phil if (vap->iv_opmode == IEEE80211_M_HOSTAP && 689 1.56.18.1 phil (vap->iv_caps & IEEE80211_C_DFS)) 690 1.56.18.1 phil vap->iv_flags_ext |= IEEE80211_FEXT_DFS; 691 1.56.18.1 phil 692 1.56.18.1 phil vap->iv_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */ 693 1.56.18.1 phil vap->iv_bmissthreshold = IEEE80211_HWBMISS_DEFAULT; 694 1.56.18.1 phil vap->iv_dtim_period = IEEE80211_DTIM_DEFAULT; 695 1.56.18.1 phil /* 696 1.56.18.1 phil * Install a default reset method for the ioctl support; 697 1.56.18.1 phil * the driver can override this. 698 1.56.18.1 phil */ 699 1.56.18.1 phil vap->iv_reset = default_reset; 700 1.56.18.1 phil 701 1.56.18.1 phil /* 702 1.56.18.1 phil * Install a default crypto key update method, the driver 703 1.56.18.1 phil * can override this. 704 1.56.18.1 phil */ 705 1.56.18.1 phil vap->iv_update_deftxkey = default_update_deftxkey; 706 1.56.18.1 phil 707 1.56.18.1 phil ieee80211_sysctl_vattach(vap); 708 1.56.18.1 phil ieee80211_crypto_vattach(vap); 709 1.56.18.1 phil ieee80211_node_vattach(vap); 710 1.56.18.1 phil ieee80211_power_vattach(vap); 711 1.56.18.1 phil ieee80211_proto_vattach(vap); 712 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 713 1.56.18.1 phil ieee80211_superg_vattach(vap); 714 1.56.18.1 phil #endif 715 1.56.18.1 phil ieee80211_ht_vattach(vap); 716 1.56.18.1 phil ieee80211_vht_vattach(vap); 717 1.56.18.1 phil ieee80211_scan_vattach(vap); 718 1.56.18.1 phil ieee80211_regdomain_vattach(vap); 719 1.56.18.1 phil ieee80211_radiotap_vattach(vap); 720 1.56.18.1 phil ieee80211_ratectl_set(vap, IEEE80211_RATECTL_NONE); 721 1.56.18.1 phil 722 1.56.18.1 phil return 0; 723 1.56.18.1 phil } 724 1.56.18.1 phil 725 1.56.18.1 phil /* 726 1.56.18.1 phil * Activate a vap. State should have been prepared with a 727 1.56.18.1 phil * call to ieee80211_vap_setup and by the driver. On return 728 1.56.18.1 phil * from this call the vap is ready for use. 729 1.56.18.1 phil */ 730 1.56.18.1 phil int 731 1.56.18.1 phil ieee80211_vap_attach(struct ieee80211vap *vap, ifm_change_cb_t media_change, 732 1.56.18.1 phil ifm_stat_cb_t media_stat, const uint8_t macaddr[IEEE80211_ADDR_LEN]) 733 1.56.18.1 phil { 734 1.56.18.1 phil struct ifnet *ifp = vap->iv_ifp; 735 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 736 1.56.18.1 phil struct ifmediareq imr; 737 1.56.18.1 phil int maxrate; 738 1.56.18.1 phil 739 1.56.18.1 phil IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, 740 1.56.18.1 phil "%s: %s parent %s flags 0x%x flags_ext 0x%x\n", 741 1.56.18.1 phil __func__, ieee80211_opmode_name[vap->iv_opmode], 742 1.56.18.1 phil ic->ic_name, vap->iv_flags, vap->iv_flags_ext); 743 1.56.18.1 phil 744 1.37 dyoung /* 745 1.56.18.1 phil * Do late attach work that cannot happen until after 746 1.56.18.1 phil * the driver has had a chance to override defaults. 747 1.37 dyoung */ 748 1.56.18.1 phil ieee80211_node_latevattach(vap); 749 1.56.18.1 phil ieee80211_power_latevattach(vap); 750 1.56.18.1 phil 751 1.56.18.1 phil maxrate = ieee80211_media_setup(ic, &vap->iv_media, vap->iv_caps, 752 1.56.18.1 phil vap->iv_opmode == IEEE80211_M_STA, media_change, media_stat); 753 1.56.18.1 phil ieee80211_media_status(ifp, &imr); 754 1.56.18.1 phil /* NB: strip explicit mode; we're actually in autoselect */ 755 1.56.18.1 phil ifmedia_set(&vap->iv_media, 756 1.56.18.1 phil imr.ifm_active &~ (IFM_MMASK | IFM_IEEE80211_TURBO)); 757 1.56.18.1 phil if (maxrate) 758 1.56.18.1 phil ifp->if_baudrate = IF_Mbps(maxrate); 759 1.56.18.1 phil 760 1.56.18.1 phil ether_ifattach(ifp, macaddr); 761 1.56.18.6 phil /* NNN also done in vap_setup, which is correct? */ 762 1.56.18.1 phil IEEE80211_ADDR_COPY(vap->iv_myaddr, IF_LLADDR(ifp)); 763 1.56.18.6 phil 764 1.56.18.1 phil /* hook output method setup by ether_ifattach */ 765 1.56.18.1 phil vap->iv_output = ifp->if_output; 766 1.56.18.1 phil ifp->if_output = ieee80211_output; 767 1.56.18.3 phil 768 1.56.18.1 phil /* NB: if_mtu set by ether_ifattach to ETHERMTU */ 769 1.56.18.1 phil 770 1.56.18.1 phil IEEE80211_LOCK(ic); 771 1.56.18.1 phil TAILQ_INSERT_TAIL(&ic->ic_vaps, vap, iv_next); 772 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_WME); 773 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 774 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_TURBOP); 775 1.37 dyoung #endif 776 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_PCF); 777 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_BURST); 778 1.56.18.1 phil ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_HT); 779 1.56.18.1 phil ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_USEHT40); 780 1.56.18.1 phil 781 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_VHT); 782 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT40); 783 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT80); 784 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT80P80); 785 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT160); 786 1.56.18.1 phil IEEE80211_UNLOCK(ic); 787 1.1 dyoung 788 1.56.18.3 phil #if __NetBSD__ 789 1.56.18.3 phil if_register(ifp); 790 1.56.18.3 phil #endif 791 1.56.18.3 phil 792 1.56.18.1 phil return 1; 793 1.56.18.1 phil } 794 1.37 dyoung 795 1.56.18.1 phil /* 796 1.56.18.1 phil * Tear down vap state and reclaim the ifnet. 797 1.56.18.1 phil * The driver is assumed to have prepared for 798 1.56.18.1 phil * this; e.g. by turning off interrupts for the 799 1.56.18.1 phil * underlying device. 800 1.56.18.1 phil */ 801 1.56.18.1 phil void 802 1.56.18.1 phil ieee80211_vap_detach(struct ieee80211vap *vap) 803 1.56.18.1 phil { 804 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 805 1.56.18.1 phil struct ifnet *ifp = vap->iv_ifp; 806 1.1 dyoung 807 1.56.18.1 phil CURVNET_SET(ifp->if_vnet); 808 1.37 dyoung 809 1.56.18.1 phil IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE, "%s: %s parent %s\n", 810 1.56.18.1 phil __func__, ieee80211_opmode_name[vap->iv_opmode], ic->ic_name); 811 1.37 dyoung 812 1.56.18.1 phil /* NB: bpfdetach is called by ether_ifdetach and claims all taps */ 813 1.56.18.1 phil ether_ifdetach(ifp); 814 1.56.18.1 phil 815 1.56.18.1 phil ieee80211_stop(vap); 816 1.37 dyoung 817 1.37 dyoung /* 818 1.56.18.1 phil * Flush any deferred vap tasks. 819 1.37 dyoung */ 820 1.56.18.1 phil ieee80211_draintask(ic, &vap->iv_nstate_task); 821 1.56.18.1 phil ieee80211_draintask(ic, &vap->iv_swbmiss_task); 822 1.56.18.1 phil ieee80211_draintask(ic, &vap->iv_wme_task); 823 1.56.18.1 phil ieee80211_draintask(ic, &ic->ic_parent_task); 824 1.56.18.1 phil 825 1.56.18.5 phil #if __FreeBSD__ 826 1.56.18.1 phil /* XXX band-aid until ifnet handles this for us */ 827 1.56.18.1 phil taskqueue_drain(taskqueue_swi, &ifp->if_linktask); 828 1.56.18.5 phil #endif 829 1.56.18.1 phil 830 1.56.18.1 phil IEEE80211_LOCK(ic); 831 1.56.18.1 phil KASSERT(vap->iv_state == IEEE80211_S_INIT , ("vap still running")); 832 1.56.18.1 phil TAILQ_REMOVE(&ic->ic_vaps, vap, iv_next); 833 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_WME); 834 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 835 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_TURBOP); 836 1.56.18.1 phil #endif 837 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_PCF); 838 1.56.18.1 phil ieee80211_syncflag_locked(ic, IEEE80211_F_BURST); 839 1.56.18.1 phil ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_HT); 840 1.56.18.1 phil ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_USEHT40); 841 1.56.18.1 phil 842 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_VHT); 843 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT40); 844 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT80); 845 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT80P80); 846 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, IEEE80211_FVHT_USEVHT160); 847 1.56.18.1 phil 848 1.56.18.1 phil /* NB: this handles the bpfdetach done below */ 849 1.56.18.1 phil ieee80211_syncflag_ext_locked(ic, IEEE80211_FEXT_BPF); 850 1.56.18.1 phil if (vap->iv_ifflags & IFF_PROMISC) 851 1.56.18.1 phil ieee80211_promisc(vap, false); 852 1.56.18.1 phil if (vap->iv_ifflags & IFF_ALLMULTI) 853 1.56.18.1 phil ieee80211_allmulti(vap, false); 854 1.56.18.1 phil IEEE80211_UNLOCK(ic); 855 1.56.18.1 phil 856 1.56.18.1 phil ifmedia_removeall(&vap->iv_media); 857 1.56.18.1 phil 858 1.56.18.1 phil ieee80211_radiotap_vdetach(vap); 859 1.56.18.1 phil ieee80211_regdomain_vdetach(vap); 860 1.56.18.1 phil ieee80211_scan_vdetach(vap); 861 1.56.18.1 phil #ifdef IEEE80211_SUPPORT_SUPERG 862 1.56.18.1 phil ieee80211_superg_vdetach(vap); 863 1.56.18.1 phil #endif 864 1.56.18.1 phil ieee80211_vht_vdetach(vap); 865 1.56.18.1 phil ieee80211_ht_vdetach(vap); 866 1.56.18.1 phil /* NB: must be before ieee80211_node_vdetach */ 867 1.56.18.1 phil ieee80211_proto_vdetach(vap); 868 1.56.18.1 phil ieee80211_crypto_vdetach(vap); 869 1.56.18.1 phil ieee80211_power_vdetach(vap); 870 1.56.18.1 phil ieee80211_node_vdetach(vap); 871 1.56.18.1 phil ieee80211_sysctl_vdetach(vap); 872 1.56.18.1 phil 873 1.56.18.1 phil if_free(ifp); 874 1.56.18.1 phil 875 1.56.18.1 phil CURVNET_RESTORE(); 876 1.1 dyoung } 877 1.1 dyoung 878 1.56.18.1 phil /* 879 1.56.18.1 phil * Count number of vaps in promisc, and issue promisc on 880 1.56.18.1 phil * parent respectively. 881 1.56.18.1 phil */ 882 1.1 dyoung void 883 1.56.18.1 phil ieee80211_promisc(struct ieee80211vap *vap, bool on) 884 1.1 dyoung { 885 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 886 1.37 dyoung 887 1.56.18.1 phil IEEE80211_LOCK_ASSERT(ic); 888 1.1 dyoung 889 1.56.18.1 phil if (on) { 890 1.56.18.1 phil if (++ic->ic_promisc == 1) 891 1.56.18.1 phil ieee80211_runtask(ic, &ic->ic_promisc_task); 892 1.56.18.1 phil } else { 893 1.56.18.1 phil KASSERT(ic->ic_promisc > 0, ("%s: ic %p not promisc", 894 1.56.18.1 phil __func__, ic)); 895 1.56.18.1 phil if (--ic->ic_promisc == 0) 896 1.56.18.1 phil ieee80211_runtask(ic, &ic->ic_promisc_task); 897 1.56.18.1 phil } 898 1.56.18.1 phil } 899 1.56.18.1 phil 900 1.56.18.1 phil /* 901 1.56.18.1 phil * Count number of vaps in allmulti, and issue allmulti on 902 1.56.18.1 phil * parent respectively. 903 1.56.18.1 phil */ 904 1.56.18.1 phil void 905 1.56.18.1 phil ieee80211_allmulti(struct ieee80211vap *vap, bool on) 906 1.56.18.1 phil { 907 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 908 1.37 dyoung 909 1.56.18.1 phil IEEE80211_LOCK_ASSERT(ic); 910 1.37 dyoung 911 1.56.18.1 phil if (on) { 912 1.56.18.1 phil if (++ic->ic_allmulti == 1) 913 1.56.18.1 phil ieee80211_runtask(ic, &ic->ic_mcast_task); 914 1.56.18.1 phil } else { 915 1.56.18.1 phil KASSERT(ic->ic_allmulti > 0, ("%s: ic %p not allmulti", 916 1.56.18.1 phil __func__, ic)); 917 1.56.18.1 phil if (--ic->ic_allmulti == 0) 918 1.56.18.1 phil ieee80211_runtask(ic, &ic->ic_mcast_task); 919 1.56.18.1 phil } 920 1.1 dyoung } 921 1.1 dyoung 922 1.1 dyoung /* 923 1.56.18.1 phil * Synchronize flag bit state in the com structure 924 1.56.18.1 phil * according to the state of all vap's. This is used, 925 1.56.18.1 phil * for example, to handle state changes via ioctls. 926 1.1 dyoung */ 927 1.56.18.1 phil static void 928 1.56.18.1 phil ieee80211_syncflag_locked(struct ieee80211com *ic, int flag) 929 1.1 dyoung { 930 1.56.18.1 phil struct ieee80211vap *vap; 931 1.56.18.1 phil int bit; 932 1.56.18.1 phil 933 1.56.18.1 phil IEEE80211_LOCK_ASSERT(ic); 934 1.56.18.1 phil 935 1.56.18.1 phil bit = 0; 936 1.56.18.1 phil TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 937 1.56.18.1 phil if (vap->iv_flags & flag) { 938 1.56.18.1 phil bit = 1; 939 1.56.18.1 phil break; 940 1.56.18.1 phil } 941 1.56.18.1 phil if (bit) 942 1.56.18.1 phil ic->ic_flags |= flag; 943 1.56.18.1 phil else 944 1.56.18.1 phil ic->ic_flags &= ~flag; 945 1.56.18.1 phil } 946 1.56.18.1 phil 947 1.56.18.1 phil void 948 1.56.18.1 phil ieee80211_syncflag(struct ieee80211vap *vap, int flag) 949 1.56.18.1 phil { 950 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 951 1.56.18.1 phil 952 1.56.18.1 phil IEEE80211_LOCK(ic); 953 1.56.18.1 phil if (flag < 0) { 954 1.56.18.1 phil flag = -flag; 955 1.56.18.1 phil vap->iv_flags &= ~flag; 956 1.56.18.1 phil } else 957 1.56.18.1 phil vap->iv_flags |= flag; 958 1.56.18.1 phil ieee80211_syncflag_locked(ic, flag); 959 1.56.18.1 phil IEEE80211_UNLOCK(ic); 960 1.1 dyoung } 961 1.1 dyoung 962 1.1 dyoung /* 963 1.56.18.1 phil * Synchronize flags_ht bit state in the com structure 964 1.56.18.1 phil * according to the state of all vap's. This is used, 965 1.56.18.1 phil * for example, to handle state changes via ioctls. 966 1.1 dyoung */ 967 1.56.18.1 phil static void 968 1.56.18.1 phil ieee80211_syncflag_ht_locked(struct ieee80211com *ic, int flag) 969 1.1 dyoung { 970 1.56.18.1 phil struct ieee80211vap *vap; 971 1.56.18.1 phil int bit; 972 1.56.18.1 phil 973 1.56.18.1 phil IEEE80211_LOCK_ASSERT(ic); 974 1.56.18.1 phil 975 1.56.18.1 phil bit = 0; 976 1.56.18.1 phil TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 977 1.56.18.1 phil if (vap->iv_flags_ht & flag) { 978 1.56.18.1 phil bit = 1; 979 1.56.18.1 phil break; 980 1.56.18.1 phil } 981 1.56.18.1 phil if (bit) 982 1.56.18.1 phil ic->ic_flags_ht |= flag; 983 1.56.18.1 phil else 984 1.56.18.1 phil ic->ic_flags_ht &= ~flag; 985 1.56.18.1 phil } 986 1.56.18.1 phil 987 1.56.18.1 phil void 988 1.56.18.1 phil ieee80211_syncflag_ht(struct ieee80211vap *vap, int flag) 989 1.56.18.1 phil { 990 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 991 1.56.18.1 phil 992 1.56.18.1 phil IEEE80211_LOCK(ic); 993 1.56.18.1 phil if (flag < 0) { 994 1.56.18.1 phil flag = -flag; 995 1.56.18.1 phil vap->iv_flags_ht &= ~flag; 996 1.56.18.1 phil } else 997 1.56.18.1 phil vap->iv_flags_ht |= flag; 998 1.56.18.1 phil ieee80211_syncflag_ht_locked(ic, flag); 999 1.56.18.1 phil IEEE80211_UNLOCK(ic); 1000 1.1 dyoung } 1001 1.1 dyoung 1002 1.1 dyoung /* 1003 1.56.18.1 phil * Synchronize flags_vht bit state in the com structure 1004 1.56.18.1 phil * according to the state of all vap's. This is used, 1005 1.56.18.1 phil * for example, to handle state changes via ioctls. 1006 1.1 dyoung */ 1007 1.56.18.1 phil static void 1008 1.56.18.1 phil ieee80211_syncflag_vht_locked(struct ieee80211com *ic, int flag) 1009 1.1 dyoung { 1010 1.56.18.1 phil struct ieee80211vap *vap; 1011 1.56.18.1 phil int bit; 1012 1.56.18.1 phil 1013 1.56.18.1 phil IEEE80211_LOCK_ASSERT(ic); 1014 1.56.18.1 phil 1015 1.56.18.1 phil bit = 0; 1016 1.56.18.1 phil TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 1017 1.56.18.1 phil if (vap->iv_flags_vht & flag) { 1018 1.56.18.1 phil bit = 1; 1019 1.56.18.1 phil break; 1020 1.56.18.1 phil } 1021 1.56.18.1 phil if (bit) 1022 1.56.18.1 phil ic->ic_flags_vht |= flag; 1023 1.56.18.1 phil else 1024 1.56.18.1 phil ic->ic_flags_vht &= ~flag; 1025 1.56.18.1 phil } 1026 1.56.18.1 phil 1027 1.56.18.1 phil void 1028 1.56.18.1 phil ieee80211_syncflag_vht(struct ieee80211vap *vap, int flag) 1029 1.56.18.1 phil { 1030 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 1031 1.56.18.1 phil 1032 1.56.18.1 phil IEEE80211_LOCK(ic); 1033 1.56.18.1 phil if (flag < 0) { 1034 1.56.18.1 phil flag = -flag; 1035 1.56.18.1 phil vap->iv_flags_vht &= ~flag; 1036 1.56.18.1 phil } else 1037 1.56.18.1 phil vap->iv_flags_vht |= flag; 1038 1.56.18.1 phil ieee80211_syncflag_vht_locked(ic, flag); 1039 1.56.18.1 phil IEEE80211_UNLOCK(ic); 1040 1.56.18.1 phil } 1041 1.56.18.1 phil 1042 1.56.18.1 phil /* 1043 1.56.18.1 phil * Synchronize flags_ext bit state in the com structure 1044 1.56.18.1 phil * according to the state of all vap's. This is used, 1045 1.56.18.1 phil * for example, to handle state changes via ioctls. 1046 1.56.18.1 phil */ 1047 1.56.18.1 phil static void 1048 1.56.18.1 phil ieee80211_syncflag_ext_locked(struct ieee80211com *ic, int flag) 1049 1.56.18.1 phil { 1050 1.56.18.1 phil struct ieee80211vap *vap; 1051 1.56.18.1 phil int bit; 1052 1.56.18.1 phil 1053 1.56.18.1 phil IEEE80211_LOCK_ASSERT(ic); 1054 1.56.18.1 phil 1055 1.56.18.1 phil bit = 0; 1056 1.56.18.1 phil TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 1057 1.56.18.1 phil if (vap->iv_flags_ext & flag) { 1058 1.56.18.1 phil bit = 1; 1059 1.56.18.1 phil break; 1060 1.56.18.1 phil } 1061 1.56.18.1 phil if (bit) 1062 1.56.18.1 phil ic->ic_flags_ext |= flag; 1063 1.56.18.1 phil else 1064 1.56.18.1 phil ic->ic_flags_ext &= ~flag; 1065 1.56.18.1 phil } 1066 1.56.18.1 phil 1067 1.56.18.1 phil void 1068 1.56.18.1 phil ieee80211_syncflag_ext(struct ieee80211vap *vap, int flag) 1069 1.56.18.1 phil { 1070 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 1071 1.56.18.1 phil 1072 1.56.18.1 phil IEEE80211_LOCK(ic); 1073 1.56.18.1 phil if (flag < 0) { 1074 1.56.18.1 phil flag = -flag; 1075 1.56.18.1 phil vap->iv_flags_ext &= ~flag; 1076 1.56.18.1 phil } else 1077 1.56.18.1 phil vap->iv_flags_ext |= flag; 1078 1.56.18.1 phil ieee80211_syncflag_ext_locked(ic, flag); 1079 1.56.18.1 phil IEEE80211_UNLOCK(ic); 1080 1.56.18.1 phil } 1081 1.56.18.1 phil 1082 1.56.18.1 phil static __inline int 1083 1.56.18.1 phil mapgsm(u_int freq, u_int flags) 1084 1.56.18.1 phil { 1085 1.56.18.1 phil freq *= 10; 1086 1.56.18.1 phil if (flags & IEEE80211_CHAN_QUARTER) 1087 1.56.18.1 phil freq += 5; 1088 1.56.18.1 phil else if (flags & IEEE80211_CHAN_HALF) 1089 1.56.18.1 phil freq += 10; 1090 1.56.18.1 phil else 1091 1.56.18.1 phil freq += 20; 1092 1.56.18.1 phil /* NB: there is no 907/20 wide but leave room */ 1093 1.56.18.1 phil return (freq - 906*10) / 5; 1094 1.56.18.1 phil } 1095 1.56.18.1 phil 1096 1.56.18.1 phil static __inline int 1097 1.56.18.1 phil mappsb(u_int freq, u_int flags) 1098 1.56.18.1 phil { 1099 1.56.18.1 phil return 37 + ((freq * 10) + ((freq % 5) == 2 ? 5 : 0) - 49400) / 5; 1100 1.56.18.1 phil } 1101 1.56.18.1 phil 1102 1.56.18.1 phil /* 1103 1.56.18.1 phil * Convert MHz frequency to IEEE channel number. 1104 1.56.18.1 phil */ 1105 1.56.18.1 phil int 1106 1.56.18.1 phil ieee80211_mhz2ieee(u_int freq, u_int flags) 1107 1.56.18.1 phil { 1108 1.56.18.1 phil #define IS_FREQ_IN_PSB(_freq) ((_freq) > 4940 && (_freq) < 4990) 1109 1.56.18.1 phil if (flags & IEEE80211_CHAN_GSM) 1110 1.56.18.1 phil return mapgsm(freq, flags); 1111 1.56.18.1 phil if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */ 1112 1.56.18.1 phil if (freq == 2484) 1113 1.56.18.1 phil return 14; 1114 1.56.18.1 phil if (freq < 2484) 1115 1.56.18.1 phil return ((int) freq - 2407) / 5; 1116 1.56.18.1 phil else 1117 1.56.18.1 phil return 15 + ((freq - 2512) / 20); 1118 1.56.18.1 phil } else if (flags & IEEE80211_CHAN_5GHZ) { /* 5Ghz band */ 1119 1.56.18.1 phil if (freq <= 5000) { 1120 1.56.18.1 phil /* XXX check regdomain? */ 1121 1.56.18.1 phil if (IS_FREQ_IN_PSB(freq)) 1122 1.56.18.1 phil return mappsb(freq, flags); 1123 1.56.18.1 phil return (freq - 4000) / 5; 1124 1.56.18.1 phil } else 1125 1.56.18.1 phil return (freq - 5000) / 5; 1126 1.56.18.1 phil } else { /* either, guess */ 1127 1.56.18.1 phil if (freq == 2484) 1128 1.56.18.1 phil return 14; 1129 1.56.18.1 phil if (freq < 2484) { 1130 1.56.18.1 phil if (907 <= freq && freq <= 922) 1131 1.56.18.1 phil return mapgsm(freq, flags); 1132 1.56.18.1 phil return ((int) freq - 2407) / 5; 1133 1.56.18.1 phil } 1134 1.56.18.1 phil if (freq < 5000) { 1135 1.56.18.1 phil if (IS_FREQ_IN_PSB(freq)) 1136 1.56.18.1 phil return mappsb(freq, flags); 1137 1.56.18.1 phil else if (freq > 4900) 1138 1.56.18.1 phil return (freq - 4000) / 5; 1139 1.56.18.1 phil else 1140 1.56.18.1 phil return 15 + ((freq - 2512) / 20); 1141 1.56.18.1 phil } 1142 1.56.18.1 phil return (freq - 5000) / 5; 1143 1.56.18.1 phil } 1144 1.56.18.1 phil #undef IS_FREQ_IN_PSB 1145 1.56.18.1 phil } 1146 1.56.18.1 phil 1147 1.56.18.1 phil /* 1148 1.56.18.1 phil * Convert channel to IEEE channel number. 1149 1.56.18.1 phil */ 1150 1.56.18.1 phil int 1151 1.56.18.1 phil ieee80211_chan2ieee(struct ieee80211com *ic, const struct ieee80211_channel *c) 1152 1.56.18.1 phil { 1153 1.56.18.1 phil if (c == NULL) { 1154 1.56.18.1 phil ic_printf(ic, "invalid channel (NULL)\n"); 1155 1.56.18.1 phil return 0; /* XXX */ 1156 1.56.18.1 phil } 1157 1.56.18.1 phil return (c == IEEE80211_CHAN_ANYC ? IEEE80211_CHAN_ANY : c->ic_ieee); 1158 1.56.18.1 phil } 1159 1.56.18.1 phil 1160 1.56.18.1 phil /* 1161 1.56.18.1 phil * Convert IEEE channel number to MHz frequency. 1162 1.56.18.1 phil */ 1163 1.56.18.1 phil u_int 1164 1.56.18.1 phil ieee80211_ieee2mhz(u_int chan, u_int flags) 1165 1.56.18.1 phil { 1166 1.56.18.1 phil if (flags & IEEE80211_CHAN_GSM) 1167 1.56.18.1 phil return 907 + 5 * (chan / 10); 1168 1.56.18.1 phil if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */ 1169 1.56.18.1 phil if (chan == 14) 1170 1.56.18.1 phil return 2484; 1171 1.56.18.1 phil if (chan < 14) 1172 1.56.18.1 phil return 2407 + chan*5; 1173 1.56.18.1 phil else 1174 1.56.18.1 phil return 2512 + ((chan-15)*20); 1175 1.56.18.1 phil } else if (flags & IEEE80211_CHAN_5GHZ) {/* 5Ghz band */ 1176 1.56.18.1 phil if (flags & (IEEE80211_CHAN_HALF|IEEE80211_CHAN_QUARTER)) { 1177 1.56.18.1 phil chan -= 37; 1178 1.56.18.1 phil return 4940 + chan*5 + (chan % 5 ? 2 : 0); 1179 1.56.18.1 phil } 1180 1.1 dyoung return 5000 + (chan*5); 1181 1.1 dyoung } else { /* either, guess */ 1182 1.56.18.1 phil /* XXX can't distinguish PSB+GSM channels */ 1183 1.1 dyoung if (chan == 14) 1184 1.1 dyoung return 2484; 1185 1.1 dyoung if (chan < 14) /* 0-13 */ 1186 1.1 dyoung return 2407 + chan*5; 1187 1.1 dyoung if (chan < 27) /* 15-26 */ 1188 1.1 dyoung return 2512 + ((chan-15)*20); 1189 1.1 dyoung return 5000 + (chan*5); 1190 1.1 dyoung } 1191 1.1 dyoung } 1192 1.1 dyoung 1193 1.56.18.1 phil static __inline void 1194 1.56.18.1 phil set_extchan(struct ieee80211_channel *c) 1195 1.56.18.1 phil { 1196 1.56.18.1 phil 1197 1.56.18.1 phil /* 1198 1.56.18.1 phil * IEEE Std 802.11-2012, page 1738, subclause 20.3.15.4: 1199 1.56.18.1 phil * "the secondary channel number shall be 'N + [1,-1] * 4' 1200 1.56.18.1 phil */ 1201 1.56.18.1 phil if (c->ic_flags & IEEE80211_CHAN_HT40U) 1202 1.56.18.1 phil c->ic_extieee = c->ic_ieee + 4; 1203 1.56.18.1 phil else if (c->ic_flags & IEEE80211_CHAN_HT40D) 1204 1.56.18.1 phil c->ic_extieee = c->ic_ieee - 4; 1205 1.56.18.1 phil else 1206 1.56.18.1 phil c->ic_extieee = 0; 1207 1.56.18.1 phil } 1208 1.56.18.1 phil 1209 1.56.18.1 phil /* 1210 1.56.18.1 phil * Populate the freq1/freq2 fields as appropriate for VHT channels. 1211 1.56.18.1 phil * 1212 1.56.18.1 phil * This for now uses a hard-coded list of 80MHz wide channels. 1213 1.56.18.1 phil * 1214 1.56.18.1 phil * For HT20/HT40, freq1 just is the centre frequency of the 40MHz 1215 1.56.18.1 phil * wide channel we've already decided upon. 1216 1.56.18.1 phil * 1217 1.56.18.1 phil * For VHT80 and VHT160, there are only a small number of fixed 1218 1.56.18.1 phil * 80/160MHz wide channels, so we just use those. 1219 1.56.18.1 phil * 1220 1.56.18.1 phil * This is all likely very very wrong - both the regulatory code 1221 1.56.18.1 phil * and this code needs to ensure that all four channels are 1222 1.56.18.1 phil * available and valid before the VHT80 (and eight for VHT160) channel 1223 1.56.18.1 phil * is created. 1224 1.56.18.1 phil */ 1225 1.56.18.1 phil 1226 1.56.18.1 phil struct vht_chan_range { 1227 1.56.18.1 phil uint16_t freq_start; 1228 1.56.18.1 phil uint16_t freq_end; 1229 1.56.18.1 phil }; 1230 1.56.18.1 phil 1231 1.56.18.1 phil struct vht_chan_range vht80_chan_ranges[] = { 1232 1.56.18.1 phil { 5170, 5250 }, 1233 1.56.18.1 phil { 5250, 5330 }, 1234 1.56.18.1 phil { 5490, 5570 }, 1235 1.56.18.1 phil { 5570, 5650 }, 1236 1.56.18.1 phil { 5650, 5730 }, 1237 1.56.18.1 phil { 5735, 5815 }, 1238 1.56.18.1 phil { 0, 0, } 1239 1.56.18.1 phil }; 1240 1.56.18.1 phil 1241 1.56.18.1 phil static int 1242 1.56.18.1 phil set_vht_extchan(struct ieee80211_channel *c) 1243 1.56.18.1 phil { 1244 1.56.18.1 phil int i; 1245 1.56.18.1 phil 1246 1.56.18.1 phil if (! IEEE80211_IS_CHAN_VHT(c)) { 1247 1.56.18.1 phil return (0); 1248 1.56.18.1 phil } 1249 1.56.18.1 phil 1250 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT20(c)) { 1251 1.56.18.1 phil c->ic_vht_ch_freq1 = c->ic_ieee; 1252 1.56.18.1 phil return (1); 1253 1.56.18.1 phil } 1254 1.56.18.1 phil 1255 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT40(c)) { 1256 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT40U(c)) 1257 1.56.18.1 phil c->ic_vht_ch_freq1 = c->ic_ieee + 2; 1258 1.56.18.1 phil else if (IEEE80211_IS_CHAN_HT40D(c)) 1259 1.56.18.1 phil c->ic_vht_ch_freq1 = c->ic_ieee - 2; 1260 1.56.18.1 phil else 1261 1.56.18.1 phil return (0); 1262 1.56.18.1 phil return (1); 1263 1.56.18.1 phil } 1264 1.56.18.1 phil 1265 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT80(c)) { 1266 1.56.18.1 phil for (i = 0; vht80_chan_ranges[i].freq_start != 0; i++) { 1267 1.56.18.1 phil if (c->ic_freq >= vht80_chan_ranges[i].freq_start && 1268 1.56.18.1 phil c->ic_freq < vht80_chan_ranges[i].freq_end) { 1269 1.56.18.1 phil int midpoint; 1270 1.56.18.1 phil 1271 1.56.18.1 phil midpoint = vht80_chan_ranges[i].freq_start + 40; 1272 1.56.18.1 phil c->ic_vht_ch_freq1 = 1273 1.56.18.1 phil ieee80211_mhz2ieee(midpoint, c->ic_flags); 1274 1.56.18.1 phil c->ic_vht_ch_freq2 = 0; 1275 1.56.18.1 phil #if 0 1276 1.56.18.1 phil printf("%s: %d, freq=%d, midpoint=%d, freq1=%d, freq2=%d\n", 1277 1.56.18.1 phil __func__, c->ic_ieee, c->ic_freq, midpoint, 1278 1.56.18.1 phil c->ic_vht_ch_freq1, c->ic_vht_ch_freq2); 1279 1.56.18.1 phil #endif 1280 1.56.18.1 phil return (1); 1281 1.56.18.1 phil } 1282 1.56.18.1 phil } 1283 1.56.18.1 phil return (0); 1284 1.56.18.1 phil } 1285 1.56.18.1 phil 1286 1.56.18.1 phil printf("%s: unknown VHT channel type (ieee=%d, flags=0x%08x)\n", 1287 1.56.18.1 phil __func__, 1288 1.56.18.1 phil c->ic_ieee, 1289 1.56.18.1 phil c->ic_flags); 1290 1.56.18.1 phil 1291 1.56.18.1 phil return (0); 1292 1.56.18.1 phil } 1293 1.56.18.1 phil 1294 1.56.18.1 phil /* 1295 1.56.18.1 phil * Return whether the current channel could possibly be a part of 1296 1.56.18.1 phil * a VHT80 channel. 1297 1.56.18.1 phil * 1298 1.56.18.1 phil * This doesn't check that the whole range is in the allowed list 1299 1.56.18.1 phil * according to regulatory. 1300 1.56.18.1 phil */ 1301 1.56.18.1 phil static int 1302 1.56.18.1 phil is_vht80_valid_freq(uint16_t freq) 1303 1.56.18.1 phil { 1304 1.56.18.1 phil int i; 1305 1.56.18.1 phil for (i = 0; vht80_chan_ranges[i].freq_start != 0; i++) { 1306 1.56.18.1 phil if (freq >= vht80_chan_ranges[i].freq_start && 1307 1.56.18.1 phil freq < vht80_chan_ranges[i].freq_end) 1308 1.56.18.1 phil return (1); 1309 1.56.18.1 phil } 1310 1.56.18.1 phil return (0); 1311 1.56.18.1 phil } 1312 1.56.18.1 phil 1313 1.56.18.1 phil static int 1314 1.56.18.1 phil addchan(struct ieee80211_channel chans[], int maxchans, int *nchans, 1315 1.56.18.1 phil uint8_t ieee, uint16_t freq, int8_t maxregpower, uint32_t flags) 1316 1.56.18.1 phil { 1317 1.56.18.1 phil struct ieee80211_channel *c; 1318 1.56.18.1 phil 1319 1.56.18.1 phil if (*nchans >= maxchans) 1320 1.56.18.1 phil return (ENOBUFS); 1321 1.56.18.1 phil 1322 1.56.18.1 phil #if 0 1323 1.56.18.1 phil printf("%s: %d: ieee=%d, freq=%d, flags=0x%08x\n", 1324 1.56.18.1 phil __func__, 1325 1.56.18.1 phil *nchans, 1326 1.56.18.1 phil ieee, 1327 1.56.18.1 phil freq, 1328 1.56.18.1 phil flags); 1329 1.56.18.1 phil #endif 1330 1.56.18.1 phil 1331 1.56.18.1 phil c = &chans[(*nchans)++]; 1332 1.56.18.1 phil c->ic_ieee = ieee; 1333 1.56.18.1 phil c->ic_freq = freq != 0 ? freq : ieee80211_ieee2mhz(ieee, flags); 1334 1.56.18.1 phil c->ic_maxregpower = maxregpower; 1335 1.56.18.1 phil c->ic_maxpower = 2 * maxregpower; 1336 1.56.18.1 phil c->ic_flags = flags; 1337 1.56.18.1 phil c->ic_vht_ch_freq1 = 0; 1338 1.56.18.1 phil c->ic_vht_ch_freq2 = 0; 1339 1.56.18.1 phil set_extchan(c); 1340 1.56.18.1 phil set_vht_extchan(c); 1341 1.56.18.1 phil 1342 1.56.18.1 phil return (0); 1343 1.56.18.1 phil } 1344 1.56.18.1 phil 1345 1.56.18.1 phil static int 1346 1.56.18.1 phil copychan_prev(struct ieee80211_channel chans[], int maxchans, int *nchans, 1347 1.56.18.1 phil uint32_t flags) 1348 1.56.18.1 phil { 1349 1.56.18.1 phil struct ieee80211_channel *c; 1350 1.56.18.1 phil 1351 1.56.18.1 phil KASSERT(*nchans > 0, ("channel list is empty\n")); 1352 1.56.18.1 phil 1353 1.56.18.1 phil if (*nchans >= maxchans) 1354 1.56.18.1 phil return (ENOBUFS); 1355 1.56.18.1 phil 1356 1.56.18.1 phil #if 0 1357 1.56.18.1 phil printf("%s: %d: flags=0x%08x\n", 1358 1.56.18.1 phil __func__, 1359 1.56.18.1 phil *nchans, 1360 1.56.18.1 phil flags); 1361 1.56.18.1 phil #endif 1362 1.56.18.1 phil 1363 1.56.18.1 phil c = &chans[(*nchans)++]; 1364 1.56.18.1 phil c[0] = c[-1]; 1365 1.56.18.1 phil c->ic_flags = flags; 1366 1.56.18.1 phil c->ic_vht_ch_freq1 = 0; 1367 1.56.18.1 phil c->ic_vht_ch_freq2 = 0; 1368 1.56.18.1 phil set_extchan(c); 1369 1.56.18.1 phil set_vht_extchan(c); 1370 1.56.18.1 phil 1371 1.56.18.1 phil return (0); 1372 1.56.18.1 phil } 1373 1.56.18.1 phil 1374 1.56.18.1 phil /* 1375 1.56.18.1 phil * XXX VHT-2GHz 1376 1.56.18.1 phil */ 1377 1.56.18.1 phil static void 1378 1.56.18.1 phil getflags_2ghz(const uint8_t bands[], uint32_t flags[], int ht40) 1379 1.56.18.1 phil { 1380 1.56.18.1 phil int nmodes; 1381 1.56.18.1 phil 1382 1.56.18.1 phil nmodes = 0; 1383 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11B)) 1384 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_B; 1385 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11G)) 1386 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_G; 1387 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11NG)) 1388 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_G | IEEE80211_CHAN_HT20; 1389 1.56.18.1 phil if (ht40) { 1390 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_G | IEEE80211_CHAN_HT40U; 1391 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_G | IEEE80211_CHAN_HT40D; 1392 1.56.18.1 phil } 1393 1.56.18.1 phil flags[nmodes] = 0; 1394 1.56.18.1 phil } 1395 1.56.18.1 phil 1396 1.56.18.1 phil static void 1397 1.56.18.1 phil getflags_5ghz(const uint8_t bands[], uint32_t flags[], int ht40, int vht80) 1398 1.56.18.1 phil { 1399 1.56.18.1 phil int nmodes; 1400 1.56.18.1 phil 1401 1.56.18.1 phil /* 1402 1.56.18.1 phil * the addchan_list function seems to expect the flags array to 1403 1.56.18.1 phil * be in channel width order, so the VHT bits are interspersed 1404 1.56.18.1 phil * as appropriate to maintain said order. 1405 1.56.18.1 phil * 1406 1.56.18.1 phil * It also assumes HT40U is before HT40D. 1407 1.56.18.1 phil */ 1408 1.56.18.1 phil nmodes = 0; 1409 1.56.18.1 phil 1410 1.56.18.1 phil /* 20MHz */ 1411 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11A)) 1412 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A; 1413 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11NA)) 1414 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | IEEE80211_CHAN_HT20; 1415 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_VHT_5GHZ)) { 1416 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | IEEE80211_CHAN_HT20 | 1417 1.56.18.1 phil IEEE80211_CHAN_VHT20; 1418 1.56.18.1 phil } 1419 1.56.18.1 phil 1420 1.56.18.1 phil /* 40MHz */ 1421 1.56.18.1 phil if (ht40) { 1422 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40U; 1423 1.56.18.1 phil } 1424 1.56.18.1 phil if (ht40 && isset(bands, IEEE80211_MODE_VHT_5GHZ)) { 1425 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40U 1426 1.56.18.1 phil | IEEE80211_CHAN_VHT40U; 1427 1.56.18.1 phil } 1428 1.56.18.1 phil if (ht40) { 1429 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40D; 1430 1.56.18.1 phil } 1431 1.56.18.1 phil if (ht40 && isset(bands, IEEE80211_MODE_VHT_5GHZ)) { 1432 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40D 1433 1.56.18.1 phil | IEEE80211_CHAN_VHT40D; 1434 1.56.18.1 phil } 1435 1.56.18.1 phil 1436 1.56.18.1 phil /* 80MHz */ 1437 1.56.18.1 phil if (vht80 && isset(bands, IEEE80211_MODE_VHT_5GHZ)) { 1438 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | 1439 1.56.18.1 phil IEEE80211_CHAN_HT40U | IEEE80211_CHAN_VHT80; 1440 1.56.18.1 phil flags[nmodes++] = IEEE80211_CHAN_A | 1441 1.56.18.1 phil IEEE80211_CHAN_HT40D | IEEE80211_CHAN_VHT80; 1442 1.56.18.1 phil } 1443 1.56.18.1 phil 1444 1.56.18.1 phil /* XXX VHT80+80 */ 1445 1.56.18.1 phil /* XXX VHT160 */ 1446 1.56.18.1 phil flags[nmodes] = 0; 1447 1.56.18.1 phil } 1448 1.56.18.1 phil 1449 1.56.18.1 phil static void 1450 1.56.18.1 phil getflags(const uint8_t bands[], uint32_t flags[], int ht40, int vht80) 1451 1.56.18.1 phil { 1452 1.56.18.1 phil 1453 1.56.18.1 phil flags[0] = 0; 1454 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11A) || 1455 1.56.18.1 phil isset(bands, IEEE80211_MODE_11NA) || 1456 1.56.18.1 phil isset(bands, IEEE80211_MODE_VHT_5GHZ)) { 1457 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_11B) || 1458 1.56.18.1 phil isset(bands, IEEE80211_MODE_11G) || 1459 1.56.18.1 phil isset(bands, IEEE80211_MODE_11NG) || 1460 1.56.18.1 phil isset(bands, IEEE80211_MODE_VHT_2GHZ)) 1461 1.56.18.1 phil return; 1462 1.56.18.1 phil 1463 1.56.18.1 phil getflags_5ghz(bands, flags, ht40, vht80); 1464 1.56.18.1 phil } else 1465 1.56.18.1 phil getflags_2ghz(bands, flags, ht40); 1466 1.56.18.1 phil } 1467 1.56.18.1 phil 1468 1.56.18.1 phil /* 1469 1.56.18.1 phil * Add one 20 MHz channel into specified channel list. 1470 1.56.18.1 phil */ 1471 1.56.18.1 phil /* XXX VHT */ 1472 1.56.18.1 phil int 1473 1.56.18.1 phil ieee80211_add_channel(struct ieee80211_channel chans[], int maxchans, 1474 1.56.18.1 phil int *nchans, uint8_t ieee, uint16_t freq, int8_t maxregpower, 1475 1.56.18.1 phil uint32_t chan_flags, const uint8_t bands[]) 1476 1.56.18.1 phil { 1477 1.56.18.1 phil uint32_t flags[IEEE80211_MODE_MAX]; 1478 1.56.18.1 phil int i, error; 1479 1.56.18.1 phil 1480 1.56.18.1 phil getflags(bands, flags, 0, 0); 1481 1.56.18.1 phil KASSERT(flags[0] != 0, ("%s: no correct mode provided\n", __func__)); 1482 1.56.18.1 phil 1483 1.56.18.1 phil error = addchan(chans, maxchans, nchans, ieee, freq, maxregpower, 1484 1.56.18.1 phil flags[0] | chan_flags); 1485 1.56.18.1 phil for (i = 1; flags[i] != 0 && error == 0; i++) { 1486 1.56.18.1 phil error = copychan_prev(chans, maxchans, nchans, 1487 1.56.18.1 phil flags[i] | chan_flags); 1488 1.56.18.1 phil } 1489 1.56.18.1 phil 1490 1.56.18.1 phil return (error); 1491 1.56.18.1 phil } 1492 1.56.18.1 phil 1493 1.56.18.1 phil static struct ieee80211_channel * 1494 1.56.18.1 phil findchannel(struct ieee80211_channel chans[], int nchans, uint16_t freq, 1495 1.56.18.1 phil uint32_t flags) 1496 1.56.18.1 phil { 1497 1.56.18.1 phil struct ieee80211_channel *c; 1498 1.56.18.1 phil int i; 1499 1.56.18.1 phil 1500 1.56.18.1 phil flags &= IEEE80211_CHAN_ALLTURBO; 1501 1.56.18.1 phil /* brute force search */ 1502 1.56.18.1 phil for (i = 0; i < nchans; i++) { 1503 1.56.18.1 phil c = &chans[i]; 1504 1.56.18.1 phil if (c->ic_freq == freq && 1505 1.56.18.1 phil (c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags) 1506 1.56.18.1 phil return c; 1507 1.56.18.1 phil } 1508 1.56.18.1 phil return NULL; 1509 1.56.18.1 phil } 1510 1.56.18.1 phil 1511 1.56.18.1 phil /* 1512 1.56.18.1 phil * Add 40 MHz channel pair into specified channel list. 1513 1.56.18.1 phil */ 1514 1.56.18.1 phil /* XXX VHT */ 1515 1.56.18.1 phil int 1516 1.56.18.1 phil ieee80211_add_channel_ht40(struct ieee80211_channel chans[], int maxchans, 1517 1.56.18.1 phil int *nchans, uint8_t ieee, int8_t maxregpower, uint32_t flags) 1518 1.56.18.1 phil { 1519 1.56.18.1 phil struct ieee80211_channel *cent, *extc; 1520 1.56.18.1 phil uint16_t freq; 1521 1.56.18.1 phil int error; 1522 1.56.18.1 phil 1523 1.56.18.1 phil freq = ieee80211_ieee2mhz(ieee, flags); 1524 1.56.18.1 phil 1525 1.56.18.1 phil /* 1526 1.56.18.1 phil * Each entry defines an HT40 channel pair; find the 1527 1.56.18.1 phil * center channel, then the extension channel above. 1528 1.56.18.1 phil */ 1529 1.56.18.1 phil flags |= IEEE80211_CHAN_HT20; 1530 1.56.18.1 phil cent = findchannel(chans, *nchans, freq, flags); 1531 1.56.18.1 phil if (cent == NULL) 1532 1.56.18.1 phil return (EINVAL); 1533 1.56.18.1 phil 1534 1.56.18.1 phil extc = findchannel(chans, *nchans, freq + 20, flags); 1535 1.56.18.1 phil if (extc == NULL) 1536 1.56.18.1 phil return (ENOENT); 1537 1.56.18.1 phil 1538 1.56.18.1 phil flags &= ~IEEE80211_CHAN_HT; 1539 1.56.18.1 phil error = addchan(chans, maxchans, nchans, cent->ic_ieee, cent->ic_freq, 1540 1.56.18.1 phil maxregpower, flags | IEEE80211_CHAN_HT40U); 1541 1.56.18.1 phil if (error != 0) 1542 1.56.18.1 phil return (error); 1543 1.56.18.1 phil 1544 1.56.18.1 phil error = addchan(chans, maxchans, nchans, extc->ic_ieee, extc->ic_freq, 1545 1.56.18.1 phil maxregpower, flags | IEEE80211_CHAN_HT40D); 1546 1.56.18.1 phil 1547 1.56.18.1 phil return (error); 1548 1.56.18.1 phil } 1549 1.56.18.1 phil 1550 1.56.18.1 phil /* 1551 1.56.18.1 phil * Fetch the center frequency for the primary channel. 1552 1.56.18.1 phil */ 1553 1.56.18.1 phil uint32_t 1554 1.56.18.1 phil ieee80211_get_channel_center_freq(const struct ieee80211_channel *c) 1555 1.56.18.1 phil { 1556 1.56.18.1 phil 1557 1.56.18.1 phil return (c->ic_freq); 1558 1.56.18.1 phil } 1559 1.56.18.1 phil 1560 1.56.18.1 phil /* 1561 1.56.18.1 phil * Fetch the center frequency for the primary BAND channel. 1562 1.56.18.1 phil * 1563 1.56.18.1 phil * For 5, 10, 20MHz channels it'll be the normally configured channel 1564 1.56.18.1 phil * frequency. 1565 1.56.18.1 phil * 1566 1.56.18.1 phil * For 40MHz, 80MHz, 160Mhz channels it'll the the centre of the 1567 1.56.18.1 phil * wide channel, not the centre of the primary channel (that's ic_freq). 1568 1.56.18.1 phil * 1569 1.56.18.1 phil * For 80+80MHz channels this will be the centre of the primary 1570 1.56.18.1 phil * 80MHz channel; the secondary 80MHz channel will be center_freq2(). 1571 1.56.18.1 phil */ 1572 1.56.18.1 phil uint32_t 1573 1.56.18.1 phil ieee80211_get_channel_center_freq1(const struct ieee80211_channel *c) 1574 1.56.18.1 phil { 1575 1.56.18.1 phil 1576 1.56.18.1 phil /* 1577 1.56.18.1 phil * VHT - use the pre-calculated centre frequency 1578 1.56.18.1 phil * of the given channel. 1579 1.56.18.1 phil */ 1580 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT(c)) 1581 1.56.18.1 phil return (ieee80211_ieee2mhz(c->ic_vht_ch_freq1, c->ic_flags)); 1582 1.56.18.1 phil 1583 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT40U(c)) { 1584 1.56.18.1 phil return (c->ic_freq + 10); 1585 1.56.18.1 phil } 1586 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT40D(c)) { 1587 1.56.18.1 phil return (c->ic_freq - 10); 1588 1.56.18.1 phil } 1589 1.56.18.1 phil 1590 1.56.18.1 phil return (c->ic_freq); 1591 1.56.18.1 phil } 1592 1.56.18.1 phil 1593 1.56.18.1 phil /* 1594 1.56.18.1 phil * For now, no 80+80 support; it will likely always return 0. 1595 1.56.18.1 phil */ 1596 1.56.18.1 phil uint32_t 1597 1.56.18.1 phil ieee80211_get_channel_center_freq2(const struct ieee80211_channel *c) 1598 1.56.18.1 phil { 1599 1.56.18.1 phil 1600 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT(c) && (c->ic_vht_ch_freq2 != 0)) 1601 1.56.18.1 phil return (ieee80211_ieee2mhz(c->ic_vht_ch_freq2, c->ic_flags)); 1602 1.56.18.1 phil 1603 1.56.18.1 phil return (0); 1604 1.56.18.1 phil } 1605 1.56.18.1 phil 1606 1.56.18.1 phil /* 1607 1.56.18.1 phil * Adds channels into specified channel list (ieee[] array must be sorted). 1608 1.56.18.1 phil * Channels are already sorted. 1609 1.56.18.1 phil */ 1610 1.56.18.1 phil static int 1611 1.56.18.1 phil add_chanlist(struct ieee80211_channel chans[], int maxchans, int *nchans, 1612 1.56.18.1 phil const uint8_t ieee[], int nieee, uint32_t flags[]) 1613 1.56.18.1 phil { 1614 1.56.18.1 phil uint16_t freq; 1615 1.56.18.1 phil int i, j, error; 1616 1.56.18.1 phil int is_vht; 1617 1.56.18.1 phil 1618 1.56.18.1 phil for (i = 0; i < nieee; i++) { 1619 1.56.18.1 phil freq = ieee80211_ieee2mhz(ieee[i], flags[0]); 1620 1.56.18.1 phil for (j = 0; flags[j] != 0; j++) { 1621 1.56.18.1 phil /* 1622 1.56.18.1 phil * Notes: 1623 1.56.18.1 phil * + HT40 and VHT40 channels occur together, so 1624 1.56.18.1 phil * we need to be careful that we actually allow that. 1625 1.56.18.1 phil * + VHT80, VHT160 will coexist with HT40/VHT40, so 1626 1.56.18.1 phil * make sure it's not skipped because of the overlap 1627 1.56.18.1 phil * check used for (V)HT40. 1628 1.56.18.1 phil */ 1629 1.56.18.1 phil is_vht = !! (flags[j] & IEEE80211_CHAN_VHT); 1630 1.56.18.1 phil 1631 1.56.18.1 phil /* 1632 1.56.18.1 phil * Test for VHT80. 1633 1.56.18.1 phil * XXX This is all very broken right now. 1634 1.56.18.1 phil * What we /should/ do is: 1635 1.56.18.1 phil * 1636 1.56.18.1 phil * + check that the frequency is in the list of 1637 1.56.18.1 phil * allowed VHT80 ranges; and 1638 1.56.18.1 phil * + the other 3 channels in the list are actually 1639 1.56.18.1 phil * also available. 1640 1.56.18.1 phil */ 1641 1.56.18.1 phil if (is_vht && flags[j] & IEEE80211_CHAN_VHT80) 1642 1.56.18.1 phil if (! is_vht80_valid_freq(freq)) 1643 1.56.18.1 phil continue; 1644 1.56.18.1 phil 1645 1.56.18.1 phil /* 1646 1.56.18.1 phil * Test for (V)HT40. 1647 1.56.18.1 phil * 1648 1.56.18.1 phil * This is also a fall through from VHT80; as we only 1649 1.56.18.1 phil * allow a VHT80 channel if the VHT40 combination is 1650 1.56.18.1 phil * also valid. If the VHT40 form is not valid then 1651 1.56.18.1 phil * we certainly can't do VHT80.. 1652 1.56.18.1 phil */ 1653 1.56.18.1 phil if (flags[j] & IEEE80211_CHAN_HT40D) 1654 1.56.18.1 phil /* 1655 1.56.18.1 phil * Can't have a "lower" channel if we are the 1656 1.56.18.1 phil * first channel. 1657 1.56.18.1 phil * 1658 1.56.18.1 phil * Can't have a "lower" channel if it's below/ 1659 1.56.18.1 phil * within 20MHz of the first channel. 1660 1.56.18.1 phil * 1661 1.56.18.1 phil * Can't have a "lower" channel if the channel 1662 1.56.18.1 phil * below it is not 20MHz away. 1663 1.56.18.1 phil */ 1664 1.56.18.1 phil if (i == 0 || ieee[i] < ieee[0] + 4 || 1665 1.56.18.1 phil freq - 20 != 1666 1.56.18.1 phil ieee80211_ieee2mhz(ieee[i] - 4, flags[j])) 1667 1.56.18.1 phil continue; 1668 1.56.18.1 phil if (flags[j] & IEEE80211_CHAN_HT40U) 1669 1.56.18.1 phil /* 1670 1.56.18.1 phil * Can't have an "upper" channel if we are 1671 1.56.18.1 phil * the last channel. 1672 1.56.18.1 phil * 1673 1.56.18.1 phil * Can't have an "upper" channel be above the 1674 1.56.18.1 phil * last channel in the list. 1675 1.56.18.1 phil * 1676 1.56.18.1 phil * Can't have an "upper" channel if the next 1677 1.56.18.1 phil * channel according to the math isn't 20MHz 1678 1.56.18.1 phil * away. (Likely for channel 13/14.) 1679 1.56.18.1 phil */ 1680 1.56.18.1 phil if (i == nieee - 1 || 1681 1.56.18.1 phil ieee[i] + 4 > ieee[nieee - 1] || 1682 1.56.18.1 phil freq + 20 != 1683 1.56.18.1 phil ieee80211_ieee2mhz(ieee[i] + 4, flags[j])) 1684 1.56.18.1 phil continue; 1685 1.56.18.1 phil 1686 1.56.18.1 phil if (j == 0) { 1687 1.56.18.1 phil error = addchan(chans, maxchans, nchans, 1688 1.56.18.1 phil ieee[i], freq, 0, flags[j]); 1689 1.56.18.1 phil } else { 1690 1.56.18.1 phil error = copychan_prev(chans, maxchans, nchans, 1691 1.56.18.1 phil flags[j]); 1692 1.56.18.1 phil } 1693 1.56.18.1 phil if (error != 0) 1694 1.56.18.1 phil return (error); 1695 1.56.18.1 phil } 1696 1.56.18.1 phil } 1697 1.56.18.1 phil 1698 1.56.18.1 phil return (0); 1699 1.56.18.1 phil } 1700 1.56.18.1 phil 1701 1.56.18.1 phil int 1702 1.56.18.1 phil ieee80211_add_channel_list_2ghz(struct ieee80211_channel chans[], int maxchans, 1703 1.56.18.1 phil int *nchans, const uint8_t ieee[], int nieee, const uint8_t bands[], 1704 1.56.18.1 phil int ht40) 1705 1.56.18.1 phil { 1706 1.56.18.1 phil uint32_t flags[IEEE80211_MODE_MAX]; 1707 1.56.18.1 phil 1708 1.56.18.1 phil /* XXX no VHT for now */ 1709 1.56.18.1 phil getflags_2ghz(bands, flags, ht40); 1710 1.56.18.1 phil KASSERT(flags[0] != 0, ("%s: no correct mode provided\n", __func__)); 1711 1.56.18.1 phil 1712 1.56.18.1 phil return (add_chanlist(chans, maxchans, nchans, ieee, nieee, flags)); 1713 1.56.18.1 phil } 1714 1.56.18.1 phil 1715 1.56.18.1 phil int 1716 1.56.18.1 phil ieee80211_add_channel_list_5ghz(struct ieee80211_channel chans[], int maxchans, 1717 1.56.18.1 phil int *nchans, const uint8_t ieee[], int nieee, const uint8_t bands[], 1718 1.56.18.1 phil int ht40) 1719 1.56.18.1 phil { 1720 1.56.18.1 phil uint32_t flags[IEEE80211_MODE_MAX]; 1721 1.56.18.1 phil int vht80 = 0; 1722 1.56.18.1 phil 1723 1.56.18.1 phil /* 1724 1.56.18.1 phil * For now, assume VHT == VHT80 support as a minimum. 1725 1.56.18.1 phil */ 1726 1.56.18.1 phil if (isset(bands, IEEE80211_MODE_VHT_5GHZ)) 1727 1.56.18.1 phil vht80 = 1; 1728 1.56.18.1 phil 1729 1.56.18.1 phil getflags_5ghz(bands, flags, ht40, vht80); 1730 1.56.18.1 phil KASSERT(flags[0] != 0, ("%s: no correct mode provided\n", __func__)); 1731 1.56.18.1 phil 1732 1.56.18.1 phil return (add_chanlist(chans, maxchans, nchans, ieee, nieee, flags)); 1733 1.56.18.1 phil } 1734 1.56.18.1 phil 1735 1.56.18.1 phil /* 1736 1.56.18.1 phil * Locate a channel given a frequency+flags. We cache 1737 1.56.18.1 phil * the previous lookup to optimize switching between two 1738 1.56.18.1 phil * channels--as happens with dynamic turbo. 1739 1.56.18.1 phil */ 1740 1.56.18.1 phil struct ieee80211_channel * 1741 1.56.18.1 phil ieee80211_find_channel(struct ieee80211com *ic, int freq, int flags) 1742 1.56.18.1 phil { 1743 1.56.18.1 phil struct ieee80211_channel *c; 1744 1.56.18.1 phil 1745 1.56.18.1 phil flags &= IEEE80211_CHAN_ALLTURBO; 1746 1.56.18.1 phil c = ic->ic_prevchan; 1747 1.56.18.1 phil if (c != NULL && c->ic_freq == freq && 1748 1.56.18.1 phil (c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags) 1749 1.56.18.1 phil return c; 1750 1.56.18.1 phil /* brute force search */ 1751 1.56.18.1 phil return (findchannel(ic->ic_channels, ic->ic_nchans, freq, flags)); 1752 1.56.18.1 phil } 1753 1.56.18.1 phil 1754 1.56.18.1 phil /* 1755 1.56.18.1 phil * Locate a channel given a channel number+flags. We cache 1756 1.56.18.1 phil * the previous lookup to optimize switching between two 1757 1.56.18.1 phil * channels--as happens with dynamic turbo. 1758 1.56.18.1 phil */ 1759 1.56.18.1 phil struct ieee80211_channel * 1760 1.56.18.1 phil ieee80211_find_channel_byieee(struct ieee80211com *ic, int ieee, int flags) 1761 1.56.18.1 phil { 1762 1.56.18.1 phil struct ieee80211_channel *c; 1763 1.56.18.1 phil int i; 1764 1.56.18.1 phil 1765 1.56.18.1 phil flags &= IEEE80211_CHAN_ALLTURBO; 1766 1.56.18.1 phil c = ic->ic_prevchan; 1767 1.56.18.1 phil if (c != NULL && c->ic_ieee == ieee && 1768 1.56.18.1 phil (c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags) 1769 1.56.18.1 phil return c; 1770 1.56.18.1 phil /* brute force search */ 1771 1.56.18.1 phil for (i = 0; i < ic->ic_nchans; i++) { 1772 1.56.18.1 phil c = &ic->ic_channels[i]; 1773 1.56.18.1 phil if (c->ic_ieee == ieee && 1774 1.56.18.1 phil (c->ic_flags & IEEE80211_CHAN_ALLTURBO) == flags) 1775 1.56.18.1 phil return c; 1776 1.56.18.1 phil } 1777 1.56.18.1 phil return NULL; 1778 1.56.18.1 phil } 1779 1.56.18.1 phil 1780 1.56.18.1 phil /* 1781 1.56.18.1 phil * Lookup a channel suitable for the given rx status. 1782 1.56.18.1 phil * 1783 1.56.18.1 phil * This is used to find a channel for a frame (eg beacon, probe 1784 1.56.18.1 phil * response) based purely on the received PHY information. 1785 1.56.18.1 phil * 1786 1.56.18.1 phil * For now it tries to do it based on R_FREQ / R_IEEE. 1787 1.56.18.1 phil * This is enough for 11bg and 11a (and thus 11ng/11na) 1788 1.56.18.1 phil * but it will not be enough for GSM, PSB channels and the 1789 1.56.18.1 phil * like. It also doesn't know about legacy-turbog and 1790 1.56.18.1 phil * legacy-turbo modes, which some offload NICs actually 1791 1.56.18.1 phil * support in weird ways. 1792 1.56.18.1 phil * 1793 1.56.18.1 phil * Takes the ic and rxstatus; returns the channel or NULL 1794 1.56.18.1 phil * if not found. 1795 1.56.18.1 phil * 1796 1.56.18.1 phil * XXX TODO: Add support for that when the need arises. 1797 1.56.18.1 phil */ 1798 1.56.18.1 phil struct ieee80211_channel * 1799 1.56.18.1 phil ieee80211_lookup_channel_rxstatus(struct ieee80211vap *vap, 1800 1.56.18.1 phil const struct ieee80211_rx_stats *rxs) 1801 1.56.18.1 phil { 1802 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 1803 1.56.18.1 phil uint32_t flags; 1804 1.56.18.1 phil struct ieee80211_channel *c; 1805 1.56.18.1 phil 1806 1.56.18.1 phil if (rxs == NULL) 1807 1.56.18.1 phil return (NULL); 1808 1.56.18.1 phil 1809 1.56.18.1 phil /* 1810 1.56.18.1 phil * Strictly speaking we only use freq for now, 1811 1.56.18.1 phil * however later on we may wish to just store 1812 1.56.18.1 phil * the ieee for verification. 1813 1.56.18.1 phil */ 1814 1.56.18.1 phil if ((rxs->r_flags & IEEE80211_R_FREQ) == 0) 1815 1.56.18.1 phil return (NULL); 1816 1.56.18.1 phil if ((rxs->r_flags & IEEE80211_R_IEEE) == 0) 1817 1.56.18.1 phil return (NULL); 1818 1.56.18.1 phil 1819 1.56.18.1 phil /* 1820 1.56.18.1 phil * If the rx status contains a valid ieee/freq, then 1821 1.56.18.1 phil * ensure we populate the correct channel information 1822 1.56.18.1 phil * in rxchan before passing it up to the scan infrastructure. 1823 1.56.18.1 phil * Offload NICs will pass up beacons from all channels 1824 1.56.18.1 phil * during background scans. 1825 1.56.18.1 phil */ 1826 1.56.18.1 phil 1827 1.56.18.1 phil /* Determine a band */ 1828 1.56.18.1 phil /* XXX should be done by the driver? */ 1829 1.56.18.1 phil if (rxs->c_freq < 3000) { 1830 1.56.18.1 phil flags = IEEE80211_CHAN_G; 1831 1.56.18.1 phil } else { 1832 1.56.18.1 phil flags = IEEE80211_CHAN_A; 1833 1.56.18.1 phil } 1834 1.56.18.1 phil 1835 1.56.18.1 phil /* Channel lookup */ 1836 1.56.18.1 phil c = ieee80211_find_channel(ic, rxs->c_freq, flags); 1837 1.56.18.1 phil 1838 1.56.18.1 phil IEEE80211_DPRINTF(vap, IEEE80211_MSG_INPUT, 1839 1.56.18.1 phil "%s: freq=%d, ieee=%d, flags=0x%08x; c=%p\n", 1840 1.56.18.1 phil __func__, 1841 1.56.18.1 phil (int) rxs->c_freq, 1842 1.56.18.1 phil (int) rxs->c_ieee, 1843 1.56.18.1 phil flags, 1844 1.56.18.1 phil c); 1845 1.56.18.1 phil 1846 1.56.18.1 phil return (c); 1847 1.56.18.1 phil } 1848 1.56.18.1 phil 1849 1.56.18.1 phil static void 1850 1.56.18.1 phil addmedia(struct ifmedia *media, int caps, int addsta, int mode, int mword) 1851 1.56.18.1 phil { 1852 1.56.18.1 phil #define ADD(_ic, _s, _o) \ 1853 1.56.18.1 phil ifmedia_add(media, \ 1854 1.56.18.1 phil IFM_MAKEWORD(IFM_IEEE80211, (_s), (_o), 0), 0, NULL) 1855 1.56.18.1 phil static const u_int mopts[IEEE80211_MODE_MAX] = { 1856 1.56.18.1 phil [IEEE80211_MODE_AUTO] = IFM_AUTO, 1857 1.56.18.1 phil [IEEE80211_MODE_11A] = IFM_IEEE80211_11A, 1858 1.56.18.1 phil [IEEE80211_MODE_11B] = IFM_IEEE80211_11B, 1859 1.56.18.1 phil [IEEE80211_MODE_11G] = IFM_IEEE80211_11G, 1860 1.56.18.1 phil [IEEE80211_MODE_FH] = IFM_IEEE80211_FH, 1861 1.56.18.1 phil [IEEE80211_MODE_TURBO_A] = IFM_IEEE80211_11A|IFM_IEEE80211_TURBO, 1862 1.56.18.1 phil [IEEE80211_MODE_TURBO_G] = IFM_IEEE80211_11G|IFM_IEEE80211_TURBO, 1863 1.56.18.1 phil [IEEE80211_MODE_STURBO_A] = IFM_IEEE80211_11A|IFM_IEEE80211_TURBO, 1864 1.56.18.1 phil [IEEE80211_MODE_HALF] = IFM_IEEE80211_11A, /* XXX */ 1865 1.56.18.1 phil [IEEE80211_MODE_QUARTER] = IFM_IEEE80211_11A, /* XXX */ 1866 1.56.18.1 phil [IEEE80211_MODE_11NA] = IFM_IEEE80211_11NA, 1867 1.56.18.1 phil [IEEE80211_MODE_11NG] = IFM_IEEE80211_11NG, 1868 1.56.18.1 phil [IEEE80211_MODE_VHT_2GHZ] = IFM_IEEE80211_VHT2G, 1869 1.56.18.1 phil [IEEE80211_MODE_VHT_5GHZ] = IFM_IEEE80211_VHT5G, 1870 1.56.18.1 phil }; 1871 1.56.18.1 phil u_int mopt; 1872 1.56.18.1 phil 1873 1.56.18.1 phil mopt = mopts[mode]; 1874 1.56.18.1 phil if (addsta) 1875 1.56.18.1 phil ADD(ic, mword, mopt); /* STA mode has no cap */ 1876 1.56.18.1 phil if (caps & IEEE80211_C_IBSS) 1877 1.56.18.1 phil ADD(media, mword, mopt | IFM_IEEE80211_ADHOC); 1878 1.56.18.1 phil if (caps & IEEE80211_C_HOSTAP) 1879 1.56.18.1 phil ADD(media, mword, mopt | IFM_IEEE80211_HOSTAP); 1880 1.56.18.1 phil if (caps & IEEE80211_C_AHDEMO) 1881 1.56.18.1 phil ADD(media, mword, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0); 1882 1.56.18.1 phil if (caps & IEEE80211_C_MONITOR) 1883 1.56.18.1 phil ADD(media, mword, mopt | IFM_IEEE80211_MONITOR); 1884 1.56.18.1 phil if (caps & IEEE80211_C_WDS) 1885 1.56.18.1 phil ADD(media, mword, mopt | IFM_IEEE80211_WDS); 1886 1.56.18.1 phil if (caps & IEEE80211_C_MBSS) 1887 1.56.18.1 phil ADD(media, mword, mopt | IFM_IEEE80211_MBSS); 1888 1.56.18.1 phil #undef ADD 1889 1.56.18.1 phil } 1890 1.56.18.1 phil 1891 1.1 dyoung /* 1892 1.1 dyoung * Setup the media data structures according to the channel and 1893 1.56.18.1 phil * rate tables. 1894 1.1 dyoung */ 1895 1.56.18.1 phil static int 1896 1.56.18.1 phil ieee80211_media_setup(struct ieee80211com *ic, 1897 1.56.18.1 phil struct ifmedia *media, int caps, int addsta, 1898 1.1 dyoung ifm_change_cb_t media_change, ifm_stat_cb_t media_stat) 1899 1.1 dyoung { 1900 1.56.18.1 phil int i, j, rate, maxrate, mword, r; 1901 1.56.18.1 phil enum ieee80211_phymode mode; 1902 1.51 dyoung const struct ieee80211_rateset *rs; 1903 1.1 dyoung struct ieee80211_rateset allrates; 1904 1.1 dyoung 1905 1.1 dyoung /* 1906 1.1 dyoung * Fill in media characteristics. 1907 1.1 dyoung */ 1908 1.56.18.1 phil ifmedia_init(media, 0, media_change, media_stat); 1909 1.1 dyoung maxrate = 0; 1910 1.56.18.1 phil /* 1911 1.56.18.1 phil * Add media for legacy operating modes. 1912 1.56.18.1 phil */ 1913 1.1 dyoung memset(&allrates, 0, sizeof(allrates)); 1914 1.56.18.1 phil for (mode = IEEE80211_MODE_AUTO; mode < IEEE80211_MODE_11NA; mode++) { 1915 1.56.18.1 phil if (isclr(ic->ic_modecaps, mode)) 1916 1.1 dyoung continue; 1917 1.56.18.1 phil addmedia(media, caps, addsta, mode, IFM_AUTO); 1918 1.1 dyoung if (mode == IEEE80211_MODE_AUTO) 1919 1.1 dyoung continue; 1920 1.1 dyoung rs = &ic->ic_sup_rates[mode]; 1921 1.1 dyoung for (i = 0; i < rs->rs_nrates; i++) { 1922 1.1 dyoung rate = rs->rs_rates[i]; 1923 1.1 dyoung mword = ieee80211_rate2media(ic, rate, mode); 1924 1.1 dyoung if (mword == 0) 1925 1.1 dyoung continue; 1926 1.56.18.1 phil addmedia(media, caps, addsta, mode, mword); 1927 1.1 dyoung /* 1928 1.56.18.1 phil * Add legacy rate to the collection of all rates. 1929 1.1 dyoung */ 1930 1.1 dyoung r = rate & IEEE80211_RATE_VAL; 1931 1.1 dyoung for (j = 0; j < allrates.rs_nrates; j++) 1932 1.1 dyoung if (allrates.rs_rates[j] == r) 1933 1.1 dyoung break; 1934 1.1 dyoung if (j == allrates.rs_nrates) { 1935 1.1 dyoung /* unique, add to the set */ 1936 1.1 dyoung allrates.rs_rates[j] = r; 1937 1.1 dyoung allrates.rs_nrates++; 1938 1.1 dyoung } 1939 1.1 dyoung rate = (rate & IEEE80211_RATE_VAL) / 2; 1940 1.1 dyoung if (rate > maxrate) 1941 1.1 dyoung maxrate = rate; 1942 1.1 dyoung } 1943 1.1 dyoung } 1944 1.1 dyoung for (i = 0; i < allrates.rs_nrates; i++) { 1945 1.1 dyoung mword = ieee80211_rate2media(ic, allrates.rs_rates[i], 1946 1.1 dyoung IEEE80211_MODE_AUTO); 1947 1.1 dyoung if (mword == 0) 1948 1.1 dyoung continue; 1949 1.56.18.1 phil /* NB: remove media options from mword */ 1950 1.56.18.1 phil addmedia(media, caps, addsta, 1951 1.56.18.1 phil IEEE80211_MODE_AUTO, IFM_SUBTYPE(mword)); 1952 1.56.18.1 phil } 1953 1.56.18.1 phil /* 1954 1.56.18.1 phil * Add HT/11n media. Note that we do not have enough 1955 1.56.18.1 phil * bits in the media subtype to express the MCS so we 1956 1.56.18.1 phil * use a "placeholder" media subtype and any fixed MCS 1957 1.56.18.1 phil * must be specified with a different mechanism. 1958 1.56.18.1 phil */ 1959 1.56.18.1 phil for (; mode <= IEEE80211_MODE_11NG; mode++) { 1960 1.56.18.1 phil if (isclr(ic->ic_modecaps, mode)) 1961 1.56.18.1 phil continue; 1962 1.56.18.1 phil addmedia(media, caps, addsta, mode, IFM_AUTO); 1963 1.56.18.1 phil addmedia(media, caps, addsta, mode, IFM_IEEE80211_MCS); 1964 1.56.18.1 phil } 1965 1.56.18.1 phil if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA) || 1966 1.56.18.1 phil isset(ic->ic_modecaps, IEEE80211_MODE_11NG)) { 1967 1.56.18.1 phil addmedia(media, caps, addsta, 1968 1.56.18.1 phil IEEE80211_MODE_AUTO, IFM_IEEE80211_MCS); 1969 1.56.18.1 phil i = ic->ic_txstream * 8 - 1; 1970 1.56.18.1 phil if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) && 1971 1.56.18.1 phil (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI40)) 1972 1.56.18.1 phil rate = ieee80211_htrates[i].ht40_rate_400ns; 1973 1.56.18.1 phil else if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40)) 1974 1.56.18.1 phil rate = ieee80211_htrates[i].ht40_rate_800ns; 1975 1.56.18.1 phil else if ((ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI20)) 1976 1.56.18.1 phil rate = ieee80211_htrates[i].ht20_rate_400ns; 1977 1.56.18.1 phil else 1978 1.56.18.1 phil rate = ieee80211_htrates[i].ht20_rate_800ns; 1979 1.56.18.1 phil if (rate > maxrate) 1980 1.56.18.1 phil maxrate = rate; 1981 1.1 dyoung } 1982 1.37 dyoung 1983 1.56.18.1 phil /* 1984 1.56.18.1 phil * Add VHT media. 1985 1.56.18.1 phil */ 1986 1.56.18.1 phil for (; mode <= IEEE80211_MODE_VHT_5GHZ; mode++) { 1987 1.56.18.1 phil if (isclr(ic->ic_modecaps, mode)) 1988 1.56.18.1 phil continue; 1989 1.56.18.1 phil addmedia(media, caps, addsta, mode, IFM_AUTO); 1990 1.56.18.1 phil addmedia(media, caps, addsta, mode, IFM_IEEE80211_VHT); 1991 1.56.18.1 phil 1992 1.56.18.1 phil /* XXX TODO: VHT maxrate */ 1993 1.56.18.1 phil } 1994 1.56.18.1 phil 1995 1.56.18.1 phil return maxrate; 1996 1.56.18.1 phil } 1997 1.56.18.1 phil 1998 1.56.18.1 phil /* XXX inline or eliminate? */ 1999 1.56.18.1 phil const struct ieee80211_rateset * 2000 1.56.18.1 phil ieee80211_get_suprates(struct ieee80211com *ic, const struct ieee80211_channel *c) 2001 1.56.18.1 phil { 2002 1.56.18.1 phil /* XXX does this work for 11ng basic rates? */ 2003 1.56.18.1 phil return &ic->ic_sup_rates[ieee80211_chan2mode(c)]; 2004 1.56.18.1 phil } 2005 1.56.18.1 phil 2006 1.56.18.1 phil /* XXX inline or eliminate? */ 2007 1.56.18.1 phil const struct ieee80211_htrateset * 2008 1.56.18.1 phil ieee80211_get_suphtrates(struct ieee80211com *ic, 2009 1.56.18.1 phil const struct ieee80211_channel *c) 2010 1.56.18.1 phil { 2011 1.56.18.1 phil return &ic->ic_sup_htrates; 2012 1.1 dyoung } 2013 1.1 dyoung 2014 1.37 dyoung void 2015 1.56.18.8 martin ieee80211_media_init(struct ieee80211com *ic, 2016 1.56.18.8 martin ifm_change_cb_t media_change, ifm_stat_cb_t media_stat) 2017 1.56.18.8 martin { 2018 1.56.18.8 martin 2019 1.56.18.9 nat struct ieee80211vap *vap; 2020 1.56.18.9 nat 2021 1.56.18.9 nat vap = TAILQ_FIRST(&ic->ic_vaps); 2022 1.56.18.9 nat KASSERT(vap != NULL, ("media vap is null")); 2023 1.56.18.9 nat 2024 1.56.18.9 nat ifmedia_init_with_lock(&vap->iv_media, 0, media_change, 2025 1.56.18.9 nat media_stat, NULL); 2026 1.56.18.8 martin } 2027 1.56.18.8 martin 2028 1.56.18.8 martin void 2029 1.37 dyoung ieee80211_announce(struct ieee80211com *ic) 2030 1.37 dyoung { 2031 1.56.18.1 phil int i, rate, mword; 2032 1.56.18.1 phil enum ieee80211_phymode mode; 2033 1.56.18.1 phil const struct ieee80211_rateset *rs; 2034 1.37 dyoung 2035 1.56.18.1 phil /* NB: skip AUTO since it has no rates */ 2036 1.56.18.1 phil for (mode = IEEE80211_MODE_AUTO+1; mode < IEEE80211_MODE_11NA; mode++) { 2037 1.56.18.1 phil if (isclr(ic->ic_modecaps, mode)) 2038 1.37 dyoung continue; 2039 1.56.18.9 nat //aprint_debug("%s: %s rates: ", ifp->if_xname, 2040 1.56.18.9 nat // ieee80211_phymode_name[mode]); 2041 1.56.18.1 phil ic_printf(ic, "%s rates: ", ieee80211_phymode_name[mode]); 2042 1.37 dyoung rs = &ic->ic_sup_rates[mode]; 2043 1.37 dyoung for (i = 0; i < rs->rs_nrates; i++) { 2044 1.56.18.1 phil mword = ieee80211_rate2media(ic, rs->rs_rates[i], mode); 2045 1.37 dyoung if (mword == 0) 2046 1.37 dyoung continue; 2047 1.56.18.1 phil rate = ieee80211_media2rate(mword); 2048 1.56.18.8 martin aprint_debug("%s%d%sMbps", (i != 0 ? " " : ""), 2049 1.56.18.1 phil rate / 2, ((rate & 0x1) != 0 ? ".5" : "")); 2050 1.37 dyoung } 2051 1.56.18.8 martin aprint_debug("\n"); 2052 1.37 dyoung } 2053 1.56.18.1 phil ieee80211_ht_announce(ic); 2054 1.56.18.1 phil ieee80211_vht_announce(ic); 2055 1.37 dyoung } 2056 1.37 dyoung 2057 1.56.18.1 phil void 2058 1.56.18.1 phil ieee80211_announce_channels(struct ieee80211com *ic) 2059 1.37 dyoung { 2060 1.56.18.1 phil const struct ieee80211_channel *c; 2061 1.56.18.1 phil char type; 2062 1.56.18.1 phil int i, cw; 2063 1.37 dyoung 2064 1.56.18.1 phil printf("Chan Freq CW RegPwr MinPwr MaxPwr\n"); 2065 1.56.18.1 phil for (i = 0; i < ic->ic_nchans; i++) { 2066 1.56.18.1 phil c = &ic->ic_channels[i]; 2067 1.56.18.1 phil if (IEEE80211_IS_CHAN_ST(c)) 2068 1.56.18.1 phil type = 'S'; 2069 1.56.18.1 phil else if (IEEE80211_IS_CHAN_108A(c)) 2070 1.56.18.1 phil type = 'T'; 2071 1.56.18.1 phil else if (IEEE80211_IS_CHAN_108G(c)) 2072 1.56.18.1 phil type = 'G'; 2073 1.56.18.1 phil else if (IEEE80211_IS_CHAN_HT(c)) 2074 1.56.18.1 phil type = 'n'; 2075 1.56.18.1 phil else if (IEEE80211_IS_CHAN_A(c)) 2076 1.56.18.1 phil type = 'a'; 2077 1.56.18.1 phil else if (IEEE80211_IS_CHAN_ANYG(c)) 2078 1.56.18.1 phil type = 'g'; 2079 1.56.18.1 phil else if (IEEE80211_IS_CHAN_B(c)) 2080 1.56.18.1 phil type = 'b'; 2081 1.56.18.1 phil else 2082 1.56.18.1 phil type = 'f'; 2083 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT40(c) || IEEE80211_IS_CHAN_TURBO(c)) 2084 1.56.18.1 phil cw = 40; 2085 1.56.18.1 phil else if (IEEE80211_IS_CHAN_HALF(c)) 2086 1.56.18.1 phil cw = 10; 2087 1.56.18.1 phil else if (IEEE80211_IS_CHAN_QUARTER(c)) 2088 1.56.18.1 phil cw = 5; 2089 1.56.18.1 phil else 2090 1.56.18.1 phil cw = 20; 2091 1.56.18.1 phil printf("%4d %4d%c %2d%c %6d %4d.%d %4d.%d\n" 2092 1.56.18.1 phil , c->ic_ieee, c->ic_freq, type 2093 1.56.18.1 phil , cw 2094 1.56.18.1 phil , IEEE80211_IS_CHAN_HT40U(c) ? '+' : 2095 1.56.18.1 phil IEEE80211_IS_CHAN_HT40D(c) ? '-' : ' ' 2096 1.56.18.1 phil , c->ic_maxregpower 2097 1.56.18.1 phil , c->ic_minpower / 2, c->ic_minpower & 1 ? 5 : 0 2098 1.56.18.1 phil , c->ic_maxpower / 2, c->ic_maxpower & 1 ? 5 : 0 2099 1.56.18.1 phil ); 2100 1.56.18.1 phil } 2101 1.37 dyoung } 2102 1.37 dyoung 2103 1.56.18.1 phil static int 2104 1.56.18.1 phil media2mode(const struct ifmedia_entry *ime, uint32_t flags, uint16_t *mode) 2105 1.1 dyoung { 2106 1.1 dyoung switch (IFM_MODE(ime->ifm_media)) { 2107 1.1 dyoung case IFM_IEEE80211_11A: 2108 1.56.18.1 phil *mode = IEEE80211_MODE_11A; 2109 1.1 dyoung break; 2110 1.1 dyoung case IFM_IEEE80211_11B: 2111 1.56.18.1 phil *mode = IEEE80211_MODE_11B; 2112 1.1 dyoung break; 2113 1.1 dyoung case IFM_IEEE80211_11G: 2114 1.56.18.1 phil *mode = IEEE80211_MODE_11G; 2115 1.1 dyoung break; 2116 1.5 dyoung case IFM_IEEE80211_FH: 2117 1.56.18.1 phil *mode = IEEE80211_MODE_FH; 2118 1.56.18.1 phil break; 2119 1.56.18.1 phil case IFM_IEEE80211_11NA: 2120 1.56.18.1 phil *mode = IEEE80211_MODE_11NA; 2121 1.56.18.1 phil break; 2122 1.56.18.1 phil case IFM_IEEE80211_11NG: 2123 1.56.18.1 phil *mode = IEEE80211_MODE_11NG; 2124 1.5 dyoung break; 2125 1.1 dyoung case IFM_AUTO: 2126 1.56.18.1 phil *mode = IEEE80211_MODE_AUTO; 2127 1.1 dyoung break; 2128 1.1 dyoung default: 2129 1.56.18.1 phil return 0; 2130 1.1 dyoung } 2131 1.1 dyoung /* 2132 1.37 dyoung * Turbo mode is an ``option''. 2133 1.37 dyoung * XXX does not apply to AUTO 2134 1.1 dyoung */ 2135 1.1 dyoung if (ime->ifm_media & IFM_IEEE80211_TURBO) { 2136 1.56.18.1 phil if (*mode == IEEE80211_MODE_11A) { 2137 1.56.18.1 phil if (flags & IEEE80211_F_TURBOP) 2138 1.56.18.1 phil *mode = IEEE80211_MODE_TURBO_A; 2139 1.56.18.1 phil else 2140 1.56.18.1 phil *mode = IEEE80211_MODE_STURBO_A; 2141 1.56.18.1 phil } else if (*mode == IEEE80211_MODE_11G) 2142 1.56.18.1 phil *mode = IEEE80211_MODE_TURBO_G; 2143 1.37 dyoung else 2144 1.56.18.1 phil return 0; 2145 1.1 dyoung } 2146 1.56.18.1 phil /* XXX HT40 +/- */ 2147 1.56.18.1 phil return 1; 2148 1.56.18.1 phil } 2149 1.1 dyoung 2150 1.56.18.1 phil /* 2151 1.56.18.1 phil * Handle a media change request on the vap interface. 2152 1.56.18.1 phil */ 2153 1.56.18.1 phil int 2154 1.56.18.1 phil ieee80211_media_change(struct ifnet *ifp) 2155 1.56.18.1 phil { 2156 1.56.18.1 phil struct ieee80211vap *vap = ifp->if_softc; 2157 1.56.18.1 phil struct ifmedia_entry *ime = vap->iv_media.ifm_cur; 2158 1.56.18.1 phil uint16_t newmode; 2159 1.1 dyoung 2160 1.56.18.1 phil if (!media2mode(ime, vap->iv_flags, &newmode)) 2161 1.56.18.1 phil return EINVAL; 2162 1.56.18.1 phil if (vap->iv_des_mode != newmode) { 2163 1.56.18.1 phil vap->iv_des_mode = newmode; 2164 1.56.18.1 phil /* XXX kick state machine if up+running */ 2165 1.1 dyoung } 2166 1.56.18.1 phil return 0; 2167 1.56.18.1 phil } 2168 1.1 dyoung 2169 1.56.18.1 phil /* 2170 1.56.18.1 phil * Common code to calculate the media status word 2171 1.56.18.1 phil * from the operating mode and channel state. 2172 1.56.18.1 phil */ 2173 1.56.18.1 phil static int 2174 1.56.18.1 phil media_status(enum ieee80211_opmode opmode, const struct ieee80211_channel *chan) 2175 1.56.18.1 phil { 2176 1.56.18.1 phil int status; 2177 1.1 dyoung 2178 1.56.18.1 phil status = IFM_IEEE80211; 2179 1.56.18.1 phil switch (opmode) { 2180 1.56.18.1 phil case IEEE80211_M_STA: 2181 1.56.18.1 phil break; 2182 1.56.18.1 phil case IEEE80211_M_IBSS: 2183 1.56.18.1 phil status |= IFM_IEEE80211_ADHOC; 2184 1.56.18.1 phil break; 2185 1.56.18.1 phil case IEEE80211_M_HOSTAP: 2186 1.56.18.1 phil status |= IFM_IEEE80211_HOSTAP; 2187 1.56.18.1 phil break; 2188 1.56.18.1 phil case IEEE80211_M_MONITOR: 2189 1.56.18.1 phil status |= IFM_IEEE80211_MONITOR; 2190 1.56.18.1 phil break; 2191 1.56.18.1 phil case IEEE80211_M_AHDEMO: 2192 1.56.18.1 phil status |= IFM_IEEE80211_ADHOC | IFM_FLAG0; 2193 1.56.18.1 phil break; 2194 1.56.18.1 phil case IEEE80211_M_WDS: 2195 1.56.18.1 phil status |= IFM_IEEE80211_WDS; 2196 1.56.18.1 phil break; 2197 1.56.18.1 phil case IEEE80211_M_MBSS: 2198 1.56.18.1 phil status |= IFM_IEEE80211_MBSS; 2199 1.56.18.1 phil break; 2200 1.56.18.1 phil } 2201 1.56.18.1 phil if (IEEE80211_IS_CHAN_HTA(chan)) { 2202 1.56.18.1 phil status |= IFM_IEEE80211_11NA; 2203 1.56.18.1 phil } else if (IEEE80211_IS_CHAN_HTG(chan)) { 2204 1.56.18.1 phil status |= IFM_IEEE80211_11NG; 2205 1.56.18.1 phil } else if (IEEE80211_IS_CHAN_A(chan)) { 2206 1.56.18.1 phil status |= IFM_IEEE80211_11A; 2207 1.56.18.1 phil } else if (IEEE80211_IS_CHAN_B(chan)) { 2208 1.56.18.1 phil status |= IFM_IEEE80211_11B; 2209 1.56.18.1 phil } else if (IEEE80211_IS_CHAN_ANYG(chan)) { 2210 1.56.18.1 phil status |= IFM_IEEE80211_11G; 2211 1.56.18.1 phil } else if (IEEE80211_IS_CHAN_FHSS(chan)) { 2212 1.56.18.1 phil status |= IFM_IEEE80211_FH; 2213 1.1 dyoung } 2214 1.56.18.1 phil /* XXX else complain? */ 2215 1.1 dyoung 2216 1.56.18.1 phil if (IEEE80211_IS_CHAN_TURBO(chan)) 2217 1.56.18.1 phil status |= IFM_IEEE80211_TURBO; 2218 1.56.18.1 phil #if 0 2219 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT20(chan)) 2220 1.56.18.1 phil status |= IFM_IEEE80211_HT20; 2221 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT40(chan)) 2222 1.56.18.1 phil status |= IFM_IEEE80211_HT40; 2223 1.1 dyoung #endif 2224 1.56.18.1 phil return status; 2225 1.1 dyoung } 2226 1.1 dyoung 2227 1.1 dyoung void 2228 1.1 dyoung ieee80211_media_status(struct ifnet *ifp, struct ifmediareq *imr) 2229 1.1 dyoung { 2230 1.56.18.1 phil struct ieee80211vap *vap = ifp->if_softc; 2231 1.56.18.1 phil struct ieee80211com *ic = vap->iv_ic; 2232 1.56.18.1 phil enum ieee80211_phymode mode; 2233 1.1 dyoung 2234 1.1 dyoung imr->ifm_status = IFM_AVALID; 2235 1.56.18.1 phil /* 2236 1.56.18.1 phil * NB: use the current channel's mode to lock down a xmit 2237 1.56.18.1 phil * rate only when running; otherwise we may have a mismatch 2238 1.56.18.1 phil * in which case the rate will not be convertible. 2239 1.56.18.1 phil */ 2240 1.56.18.1 phil if (vap->iv_state == IEEE80211_S_RUN || 2241 1.56.18.1 phil vap->iv_state == IEEE80211_S_SLEEP) { 2242 1.1 dyoung imr->ifm_status |= IFM_ACTIVE; 2243 1.56.18.1 phil mode = ieee80211_chan2mode(ic->ic_curchan); 2244 1.56.18.1 phil } else 2245 1.56.18.1 phil mode = IEEE80211_MODE_AUTO; 2246 1.56.18.1 phil imr->ifm_active = media_status(vap->iv_opmode, ic->ic_curchan); 2247 1.37 dyoung /* 2248 1.37 dyoung * Calculate a current rate if possible. 2249 1.37 dyoung */ 2250 1.56.18.1 phil if (vap->iv_txparms[mode].ucastrate != IEEE80211_FIXED_RATE_NONE) { 2251 1.37 dyoung /* 2252 1.37 dyoung * A fixed rate is set, report that. 2253 1.37 dyoung */ 2254 1.37 dyoung imr->ifm_active |= ieee80211_rate2media(ic, 2255 1.56.18.1 phil vap->iv_txparms[mode].ucastrate, mode); 2256 1.56.18.1 phil } else if (vap->iv_opmode == IEEE80211_M_STA) { 2257 1.37 dyoung /* 2258 1.37 dyoung * In station mode report the current transmit rate. 2259 1.37 dyoung */ 2260 1.37 dyoung imr->ifm_active |= ieee80211_rate2media(ic, 2261 1.56.18.1 phil vap->iv_bss->ni_txrate, mode); 2262 1.37 dyoung } else 2263 1.37 dyoung imr->ifm_active |= IFM_AUTO; 2264 1.56.18.1 phil if (imr->ifm_status & IFM_ACTIVE) 2265 1.56.18.1 phil imr->ifm_current = imr->ifm_active; 2266 1.1 dyoung } 2267 1.1 dyoung 2268 1.49 cegger /* 2269 1.1 dyoung * Set the current phy mode and recalculate the active channel 2270 1.1 dyoung * set based on the available channels for this mode. Also 2271 1.1 dyoung * select a new default/current channel if the current one is 2272 1.1 dyoung * inappropriate for this mode. 2273 1.1 dyoung */ 2274 1.1 dyoung int 2275 1.1 dyoung ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode) 2276 1.1 dyoung { 2277 1.1 dyoung /* 2278 1.56.18.1 phil * Adjust basic rates in 11b/11g supported rate set. 2279 1.56.18.1 phil * Note that if operating on a hal/quarter rate channel 2280 1.56.18.1 phil * this is a noop as those rates sets are different 2281 1.56.18.1 phil * and used instead. 2282 1.1 dyoung */ 2283 1.56.18.1 phil if (mode == IEEE80211_MODE_11G || mode == IEEE80211_MODE_11B) 2284 1.56.18.1 phil ieee80211_setbasicrates(&ic->ic_sup_rates[mode], mode); 2285 1.1 dyoung 2286 1.1 dyoung ic->ic_curmode = mode; 2287 1.37 dyoung ieee80211_reset_erp(ic); /* reset ERP state */ 2288 1.37 dyoung 2289 1.1 dyoung return 0; 2290 1.1 dyoung } 2291 1.1 dyoung 2292 1.1 dyoung /* 2293 1.56.18.1 phil * Return the phy mode for with the specified channel. 2294 1.1 dyoung */ 2295 1.1 dyoung enum ieee80211_phymode 2296 1.56.18.1 phil ieee80211_chan2mode(const struct ieee80211_channel *chan) 2297 1.1 dyoung { 2298 1.56.18.1 phil 2299 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT_2GHZ(chan)) 2300 1.56.18.1 phil return IEEE80211_MODE_VHT_2GHZ; 2301 1.56.18.1 phil else if (IEEE80211_IS_CHAN_VHT_5GHZ(chan)) 2302 1.56.18.1 phil return IEEE80211_MODE_VHT_5GHZ; 2303 1.56.18.1 phil else if (IEEE80211_IS_CHAN_HTA(chan)) 2304 1.56.18.1 phil return IEEE80211_MODE_11NA; 2305 1.56.18.1 phil else if (IEEE80211_IS_CHAN_HTG(chan)) 2306 1.56.18.1 phil return IEEE80211_MODE_11NG; 2307 1.56.18.1 phil else if (IEEE80211_IS_CHAN_108G(chan)) 2308 1.56.18.1 phil return IEEE80211_MODE_TURBO_G; 2309 1.56.18.1 phil else if (IEEE80211_IS_CHAN_ST(chan)) 2310 1.56.18.1 phil return IEEE80211_MODE_STURBO_A; 2311 1.56.18.1 phil else if (IEEE80211_IS_CHAN_TURBO(chan)) 2312 1.44 dyoung return IEEE80211_MODE_TURBO_A; 2313 1.56.18.1 phil else if (IEEE80211_IS_CHAN_HALF(chan)) 2314 1.56.18.1 phil return IEEE80211_MODE_HALF; 2315 1.56.18.1 phil else if (IEEE80211_IS_CHAN_QUARTER(chan)) 2316 1.56.18.1 phil return IEEE80211_MODE_QUARTER; 2317 1.56.18.1 phil else if (IEEE80211_IS_CHAN_A(chan)) 2318 1.1 dyoung return IEEE80211_MODE_11A; 2319 1.56.18.1 phil else if (IEEE80211_IS_CHAN_ANYG(chan)) 2320 1.1 dyoung return IEEE80211_MODE_11G; 2321 1.56.18.1 phil else if (IEEE80211_IS_CHAN_B(chan)) 2322 1.1 dyoung return IEEE80211_MODE_11B; 2323 1.56.18.1 phil else if (IEEE80211_IS_CHAN_FHSS(chan)) 2324 1.56.18.1 phil return IEEE80211_MODE_FH; 2325 1.56.18.1 phil 2326 1.56.18.1 phil /* NB: should not get here */ 2327 1.56.18.1 phil printf("%s: cannot map channel to mode; freq %u flags 0x%x\n", 2328 1.56.18.1 phil __func__, chan->ic_freq, chan->ic_flags); 2329 1.56.18.1 phil return IEEE80211_MODE_11B; 2330 1.56.18.1 phil } 2331 1.56.18.1 phil 2332 1.56.18.1 phil struct ratemedia { 2333 1.56.18.1 phil u_int match; /* rate + mode */ 2334 1.56.18.1 phil u_int media; /* if_media rate */ 2335 1.56.18.1 phil }; 2336 1.56.18.1 phil 2337 1.56.18.1 phil static int 2338 1.56.18.1 phil findmedia(const struct ratemedia rates[], int n, u_int match) 2339 1.56.18.1 phil { 2340 1.56.18.1 phil int i; 2341 1.56.18.1 phil 2342 1.56.18.1 phil for (i = 0; i < n; i++) 2343 1.56.18.1 phil if (rates[i].match == match) 2344 1.56.18.1 phil return rates[i].media; 2345 1.56.18.1 phil return IFM_AUTO; 2346 1.1 dyoung } 2347 1.1 dyoung 2348 1.1 dyoung /* 2349 1.56.18.1 phil * Convert IEEE80211 rate value to ifmedia subtype. 2350 1.56.18.1 phil * Rate is either a legacy rate in units of 0.5Mbps 2351 1.56.18.1 phil * or an MCS index. 2352 1.1 dyoung */ 2353 1.1 dyoung int 2354 1.1 dyoung ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode mode) 2355 1.1 dyoung { 2356 1.56.18.1 phil static const struct ratemedia rates[] = { 2357 1.5 dyoung { 2 | IFM_IEEE80211_FH, IFM_IEEE80211_FH1 }, 2358 1.5 dyoung { 4 | IFM_IEEE80211_FH, IFM_IEEE80211_FH2 }, 2359 1.5 dyoung { 2 | IFM_IEEE80211_11B, IFM_IEEE80211_DS1 }, 2360 1.5 dyoung { 4 | IFM_IEEE80211_11B, IFM_IEEE80211_DS2 }, 2361 1.5 dyoung { 11 | IFM_IEEE80211_11B, IFM_IEEE80211_DS5 }, 2362 1.5 dyoung { 22 | IFM_IEEE80211_11B, IFM_IEEE80211_DS11 }, 2363 1.5 dyoung { 44 | IFM_IEEE80211_11B, IFM_IEEE80211_DS22 }, 2364 1.5 dyoung { 12 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM6 }, 2365 1.5 dyoung { 18 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM9 }, 2366 1.5 dyoung { 24 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM12 }, 2367 1.5 dyoung { 36 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM18 }, 2368 1.5 dyoung { 48 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM24 }, 2369 1.5 dyoung { 72 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM36 }, 2370 1.5 dyoung { 96 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM48 }, 2371 1.5 dyoung { 108 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM54 }, 2372 1.5 dyoung { 2 | IFM_IEEE80211_11G, IFM_IEEE80211_DS1 }, 2373 1.5 dyoung { 4 | IFM_IEEE80211_11G, IFM_IEEE80211_DS2 }, 2374 1.5 dyoung { 11 | IFM_IEEE80211_11G, IFM_IEEE80211_DS5 }, 2375 1.5 dyoung { 22 | IFM_IEEE80211_11G, IFM_IEEE80211_DS11 }, 2376 1.5 dyoung { 12 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM6 }, 2377 1.5 dyoung { 18 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM9 }, 2378 1.5 dyoung { 24 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM12 }, 2379 1.5 dyoung { 36 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM18 }, 2380 1.5 dyoung { 48 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM24 }, 2381 1.5 dyoung { 72 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM36 }, 2382 1.5 dyoung { 96 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM48 }, 2383 1.5 dyoung { 108 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM54 }, 2384 1.56.18.1 phil { 6 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM3 }, 2385 1.56.18.1 phil { 9 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM4 }, 2386 1.56.18.1 phil { 54 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM27 }, 2387 1.56.18.1 phil /* NB: OFDM72 doesn't really exist so we don't handle it */ 2388 1.56.18.1 phil }; 2389 1.56.18.1 phil static const struct ratemedia htrates[] = { 2390 1.56.18.1 phil { 0, IFM_IEEE80211_MCS }, 2391 1.56.18.1 phil { 1, IFM_IEEE80211_MCS }, 2392 1.56.18.1 phil { 2, IFM_IEEE80211_MCS }, 2393 1.56.18.1 phil { 3, IFM_IEEE80211_MCS }, 2394 1.56.18.1 phil { 4, IFM_IEEE80211_MCS }, 2395 1.56.18.1 phil { 5, IFM_IEEE80211_MCS }, 2396 1.56.18.1 phil { 6, IFM_IEEE80211_MCS }, 2397 1.56.18.1 phil { 7, IFM_IEEE80211_MCS }, 2398 1.56.18.1 phil { 8, IFM_IEEE80211_MCS }, 2399 1.56.18.1 phil { 9, IFM_IEEE80211_MCS }, 2400 1.56.18.1 phil { 10, IFM_IEEE80211_MCS }, 2401 1.56.18.1 phil { 11, IFM_IEEE80211_MCS }, 2402 1.56.18.1 phil { 12, IFM_IEEE80211_MCS }, 2403 1.56.18.1 phil { 13, IFM_IEEE80211_MCS }, 2404 1.56.18.1 phil { 14, IFM_IEEE80211_MCS }, 2405 1.56.18.1 phil { 15, IFM_IEEE80211_MCS }, 2406 1.56.18.1 phil { 16, IFM_IEEE80211_MCS }, 2407 1.56.18.1 phil { 17, IFM_IEEE80211_MCS }, 2408 1.56.18.1 phil { 18, IFM_IEEE80211_MCS }, 2409 1.56.18.1 phil { 19, IFM_IEEE80211_MCS }, 2410 1.56.18.1 phil { 20, IFM_IEEE80211_MCS }, 2411 1.56.18.1 phil { 21, IFM_IEEE80211_MCS }, 2412 1.56.18.1 phil { 22, IFM_IEEE80211_MCS }, 2413 1.56.18.1 phil { 23, IFM_IEEE80211_MCS }, 2414 1.56.18.1 phil { 24, IFM_IEEE80211_MCS }, 2415 1.56.18.1 phil { 25, IFM_IEEE80211_MCS }, 2416 1.56.18.1 phil { 26, IFM_IEEE80211_MCS }, 2417 1.56.18.1 phil { 27, IFM_IEEE80211_MCS }, 2418 1.56.18.1 phil { 28, IFM_IEEE80211_MCS }, 2419 1.56.18.1 phil { 29, IFM_IEEE80211_MCS }, 2420 1.56.18.1 phil { 30, IFM_IEEE80211_MCS }, 2421 1.56.18.1 phil { 31, IFM_IEEE80211_MCS }, 2422 1.56.18.1 phil { 32, IFM_IEEE80211_MCS }, 2423 1.56.18.1 phil { 33, IFM_IEEE80211_MCS }, 2424 1.56.18.1 phil { 34, IFM_IEEE80211_MCS }, 2425 1.56.18.1 phil { 35, IFM_IEEE80211_MCS }, 2426 1.56.18.1 phil { 36, IFM_IEEE80211_MCS }, 2427 1.56.18.1 phil { 37, IFM_IEEE80211_MCS }, 2428 1.56.18.1 phil { 38, IFM_IEEE80211_MCS }, 2429 1.56.18.1 phil { 39, IFM_IEEE80211_MCS }, 2430 1.56.18.1 phil { 40, IFM_IEEE80211_MCS }, 2431 1.56.18.1 phil { 41, IFM_IEEE80211_MCS }, 2432 1.56.18.1 phil { 42, IFM_IEEE80211_MCS }, 2433 1.56.18.1 phil { 43, IFM_IEEE80211_MCS }, 2434 1.56.18.1 phil { 44, IFM_IEEE80211_MCS }, 2435 1.56.18.1 phil { 45, IFM_IEEE80211_MCS }, 2436 1.56.18.1 phil { 46, IFM_IEEE80211_MCS }, 2437 1.56.18.1 phil { 47, IFM_IEEE80211_MCS }, 2438 1.56.18.1 phil { 48, IFM_IEEE80211_MCS }, 2439 1.56.18.1 phil { 49, IFM_IEEE80211_MCS }, 2440 1.56.18.1 phil { 50, IFM_IEEE80211_MCS }, 2441 1.56.18.1 phil { 51, IFM_IEEE80211_MCS }, 2442 1.56.18.1 phil { 52, IFM_IEEE80211_MCS }, 2443 1.56.18.1 phil { 53, IFM_IEEE80211_MCS }, 2444 1.56.18.1 phil { 54, IFM_IEEE80211_MCS }, 2445 1.56.18.1 phil { 55, IFM_IEEE80211_MCS }, 2446 1.56.18.1 phil { 56, IFM_IEEE80211_MCS }, 2447 1.56.18.1 phil { 57, IFM_IEEE80211_MCS }, 2448 1.56.18.1 phil { 58, IFM_IEEE80211_MCS }, 2449 1.56.18.1 phil { 59, IFM_IEEE80211_MCS }, 2450 1.56.18.1 phil { 60, IFM_IEEE80211_MCS }, 2451 1.56.18.1 phil { 61, IFM_IEEE80211_MCS }, 2452 1.56.18.1 phil { 62, IFM_IEEE80211_MCS }, 2453 1.56.18.1 phil { 63, IFM_IEEE80211_MCS }, 2454 1.56.18.1 phil { 64, IFM_IEEE80211_MCS }, 2455 1.56.18.1 phil { 65, IFM_IEEE80211_MCS }, 2456 1.56.18.1 phil { 66, IFM_IEEE80211_MCS }, 2457 1.56.18.1 phil { 67, IFM_IEEE80211_MCS }, 2458 1.56.18.1 phil { 68, IFM_IEEE80211_MCS }, 2459 1.56.18.1 phil { 69, IFM_IEEE80211_MCS }, 2460 1.56.18.1 phil { 70, IFM_IEEE80211_MCS }, 2461 1.56.18.1 phil { 71, IFM_IEEE80211_MCS }, 2462 1.56.18.1 phil { 72, IFM_IEEE80211_MCS }, 2463 1.56.18.1 phil { 73, IFM_IEEE80211_MCS }, 2464 1.56.18.1 phil { 74, IFM_IEEE80211_MCS }, 2465 1.56.18.1 phil { 75, IFM_IEEE80211_MCS }, 2466 1.56.18.1 phil { 76, IFM_IEEE80211_MCS }, 2467 1.1 dyoung }; 2468 1.56.18.1 phil int m; 2469 1.1 dyoung 2470 1.56.18.1 phil /* 2471 1.56.18.1 phil * Check 11n rates first for match as an MCS. 2472 1.56.18.1 phil */ 2473 1.56.18.1 phil if (mode == IEEE80211_MODE_11NA) { 2474 1.56.18.1 phil if (rate & IEEE80211_RATE_MCS) { 2475 1.56.18.1 phil rate &= ~IEEE80211_RATE_MCS; 2476 1.56.18.1 phil m = findmedia(htrates, nitems(htrates), rate); 2477 1.56.18.1 phil if (m != IFM_AUTO) 2478 1.56.18.1 phil return m | IFM_IEEE80211_11NA; 2479 1.56.18.1 phil } 2480 1.56.18.1 phil } else if (mode == IEEE80211_MODE_11NG) { 2481 1.56.18.1 phil /* NB: 12 is ambiguous, it will be treated as an MCS */ 2482 1.56.18.1 phil if (rate & IEEE80211_RATE_MCS) { 2483 1.56.18.1 phil rate &= ~IEEE80211_RATE_MCS; 2484 1.56.18.1 phil m = findmedia(htrates, nitems(htrates), rate); 2485 1.56.18.1 phil if (m != IFM_AUTO) 2486 1.56.18.1 phil return m | IFM_IEEE80211_11NG; 2487 1.56.18.1 phil } 2488 1.56.18.1 phil } 2489 1.56.18.1 phil rate &= IEEE80211_RATE_VAL; 2490 1.1 dyoung switch (mode) { 2491 1.1 dyoung case IEEE80211_MODE_11A: 2492 1.56.18.1 phil case IEEE80211_MODE_HALF: /* XXX good 'nuf */ 2493 1.56.18.1 phil case IEEE80211_MODE_QUARTER: 2494 1.56.18.1 phil case IEEE80211_MODE_11NA: 2495 1.37 dyoung case IEEE80211_MODE_TURBO_A: 2496 1.56.18.1 phil case IEEE80211_MODE_STURBO_A: 2497 1.56.18.1 phil return findmedia(rates, nitems(rates), 2498 1.56.18.1 phil rate | IFM_IEEE80211_11A); 2499 1.1 dyoung case IEEE80211_MODE_11B: 2500 1.56.18.1 phil return findmedia(rates, nitems(rates), 2501 1.56.18.1 phil rate | IFM_IEEE80211_11B); 2502 1.5 dyoung case IEEE80211_MODE_FH: 2503 1.56.18.1 phil return findmedia(rates, nitems(rates), 2504 1.56.18.1 phil rate | IFM_IEEE80211_FH); 2505 1.1 dyoung case IEEE80211_MODE_AUTO: 2506 1.10 dyoung /* NB: ic may be NULL for some drivers */ 2507 1.56.18.1 phil if (ic != NULL && ic->ic_phytype == IEEE80211_T_FH) 2508 1.56.18.1 phil return findmedia(rates, nitems(rates), 2509 1.56.18.1 phil rate | IFM_IEEE80211_FH); 2510 1.10 dyoung /* NB: hack, 11g matches both 11b+11a rates */ 2511 1.10 dyoung /* fall thru... */ 2512 1.10 dyoung case IEEE80211_MODE_11G: 2513 1.56.18.1 phil case IEEE80211_MODE_11NG: 2514 1.37 dyoung case IEEE80211_MODE_TURBO_G: 2515 1.56.18.1 phil return findmedia(rates, nitems(rates), rate | IFM_IEEE80211_11G); 2516 1.56.18.1 phil case IEEE80211_MODE_VHT_2GHZ: 2517 1.56.18.1 phil case IEEE80211_MODE_VHT_5GHZ: 2518 1.56.18.1 phil /* XXX TODO: need to figure out mapping for VHT rates */ 2519 1.56.18.1 phil return IFM_AUTO; 2520 1.1 dyoung } 2521 1.1 dyoung return IFM_AUTO; 2522 1.1 dyoung } 2523 1.1 dyoung 2524 1.1 dyoung int 2525 1.1 dyoung ieee80211_media2rate(int mword) 2526 1.1 dyoung { 2527 1.26 mycroft static const int ieeerates[] = { 2528 1.26 mycroft -1, /* IFM_AUTO */ 2529 1.26 mycroft 0, /* IFM_MANUAL */ 2530 1.26 mycroft 0, /* IFM_NONE */ 2531 1.26 mycroft 2, /* IFM_IEEE80211_FH1 */ 2532 1.26 mycroft 4, /* IFM_IEEE80211_FH2 */ 2533 1.56.18.1 phil 2, /* IFM_IEEE80211_DS1 */ 2534 1.26 mycroft 4, /* IFM_IEEE80211_DS2 */ 2535 1.26 mycroft 11, /* IFM_IEEE80211_DS5 */ 2536 1.26 mycroft 22, /* IFM_IEEE80211_DS11 */ 2537 1.26 mycroft 44, /* IFM_IEEE80211_DS22 */ 2538 1.26 mycroft 12, /* IFM_IEEE80211_OFDM6 */ 2539 1.26 mycroft 18, /* IFM_IEEE80211_OFDM9 */ 2540 1.26 mycroft 24, /* IFM_IEEE80211_OFDM12 */ 2541 1.26 mycroft 36, /* IFM_IEEE80211_OFDM18 */ 2542 1.26 mycroft 48, /* IFM_IEEE80211_OFDM24 */ 2543 1.26 mycroft 72, /* IFM_IEEE80211_OFDM36 */ 2544 1.26 mycroft 96, /* IFM_IEEE80211_OFDM48 */ 2545 1.26 mycroft 108, /* IFM_IEEE80211_OFDM54 */ 2546 1.26 mycroft 144, /* IFM_IEEE80211_OFDM72 */ 2547 1.56.18.1 phil 0, /* IFM_IEEE80211_DS354k */ 2548 1.56.18.1 phil 0, /* IFM_IEEE80211_DS512k */ 2549 1.56.18.1 phil 6, /* IFM_IEEE80211_OFDM3 */ 2550 1.56.18.1 phil 9, /* IFM_IEEE80211_OFDM4 */ 2551 1.56.18.1 phil 54, /* IFM_IEEE80211_OFDM27 */ 2552 1.56.18.1 phil -1, /* IFM_IEEE80211_MCS */ 2553 1.56.18.1 phil -1, /* IFM_IEEE80211_VHT */ 2554 1.1 dyoung }; 2555 1.56.18.1 phil return IFM_SUBTYPE(mword) < nitems(ieeerates) ? 2556 1.26 mycroft ieeerates[IFM_SUBTYPE(mword)] : 0; 2557 1.56.18.1 phil } 2558 1.56.18.1 phil 2559 1.56.18.1 phil /* 2560 1.56.18.1 phil * The following hash function is adapted from "Hash Functions" by Bob Jenkins 2561 1.56.18.1 phil * ("Algorithm Alley", Dr. Dobbs Journal, September 1997). 2562 1.56.18.1 phil */ 2563 1.56.18.1 phil #define mix(a, b, c) \ 2564 1.56.18.1 phil do { \ 2565 1.56.18.1 phil a -= b; a -= c; a ^= (c >> 13); \ 2566 1.56.18.1 phil b -= c; b -= a; b ^= (a << 8); \ 2567 1.56.18.1 phil c -= a; c -= b; c ^= (b >> 13); \ 2568 1.56.18.1 phil a -= b; a -= c; a ^= (c >> 12); \ 2569 1.56.18.1 phil b -= c; b -= a; b ^= (a << 16); \ 2570 1.56.18.1 phil c -= a; c -= b; c ^= (b >> 5); \ 2571 1.56.18.1 phil a -= b; a -= c; a ^= (c >> 3); \ 2572 1.56.18.1 phil b -= c; b -= a; b ^= (a << 10); \ 2573 1.56.18.1 phil c -= a; c -= b; c ^= (b >> 15); \ 2574 1.56.18.1 phil } while (/*CONSTCOND*/0) 2575 1.56.18.1 phil 2576 1.56.18.1 phil uint32_t 2577 1.56.18.1 phil ieee80211_mac_hash(const struct ieee80211com *ic, 2578 1.56.18.1 phil const uint8_t addr[IEEE80211_ADDR_LEN]) 2579 1.56.18.1 phil { 2580 1.56.18.1 phil uint32_t a = 0x9e3779b9, b = 0x9e3779b9, c = ic->ic_hash_key; 2581 1.56.18.1 phil 2582 1.56.18.1 phil b += addr[5] << 8; 2583 1.56.18.1 phil b += addr[4]; 2584 1.56.18.1 phil a += addr[3] << 24; 2585 1.56.18.1 phil a += addr[2] << 16; 2586 1.56.18.1 phil a += addr[1] << 8; 2587 1.56.18.1 phil a += addr[0]; 2588 1.56.18.1 phil 2589 1.56.18.1 phil mix(a, b, c); 2590 1.56.18.1 phil 2591 1.56.18.1 phil return c; 2592 1.56.18.1 phil } 2593 1.56.18.1 phil #undef mix 2594 1.56.18.1 phil 2595 1.56.18.1 phil char 2596 1.56.18.1 phil ieee80211_channel_type_char(const struct ieee80211_channel *c) 2597 1.56.18.1 phil { 2598 1.56.18.1 phil if (IEEE80211_IS_CHAN_ST(c)) 2599 1.56.18.1 phil return 'S'; 2600 1.56.18.1 phil if (IEEE80211_IS_CHAN_108A(c)) 2601 1.56.18.1 phil return 'T'; 2602 1.56.18.1 phil if (IEEE80211_IS_CHAN_108G(c)) 2603 1.56.18.1 phil return 'G'; 2604 1.56.18.1 phil if (IEEE80211_IS_CHAN_VHT(c)) 2605 1.56.18.1 phil return 'v'; 2606 1.56.18.1 phil if (IEEE80211_IS_CHAN_HT(c)) 2607 1.56.18.1 phil return 'n'; 2608 1.56.18.1 phil if (IEEE80211_IS_CHAN_A(c)) 2609 1.56.18.1 phil return 'a'; 2610 1.56.18.1 phil if (IEEE80211_IS_CHAN_ANYG(c)) 2611 1.56.18.1 phil return 'g'; 2612 1.56.18.1 phil if (IEEE80211_IS_CHAN_B(c)) 2613 1.56.18.1 phil return 'b'; 2614 1.56.18.1 phil return 'f'; 2615 1.1 dyoung } 2616
Indexes created Thu Oct 02 14:10:14 GMT 2025