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