ieee80211.c revision 1.31.2.7
1 1.31.2.7 skrll /* $NetBSD: ieee80211.c,v 1.31.2.7 2005/11/10 14:10:51 skrll Exp $ */ 2 1.31.2.2 skrll /*- 3 1.31.2.2 skrll * Copyright (c) 2001 Atsushi Onoe 4 1.31.2.7 skrll * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 5 1.31.2.2 skrll * All rights reserved. 6 1.31.2.2 skrll * 7 1.31.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.31.2.2 skrll * modification, are permitted provided that the following conditions 9 1.31.2.2 skrll * are met: 10 1.31.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.31.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.31.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 13 1.31.2.2 skrll * notice, this list of conditions and the following disclaimer in the 14 1.31.2.2 skrll * documentation and/or other materials provided with the distribution. 15 1.31.2.2 skrll * 3. The name of the author may not be used to endorse or promote products 16 1.31.2.2 skrll * derived from this software without specific prior written permission. 17 1.31.2.2 skrll * 18 1.31.2.2 skrll * Alternatively, this software may be distributed under the terms of the 19 1.31.2.2 skrll * GNU General Public License ("GPL") version 2 as published by the Free 20 1.31.2.2 skrll * Software Foundation. 21 1.31.2.2 skrll * 22 1.31.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.31.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.31.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.31.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.31.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 1.31.2.2 skrll * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 1.31.2.2 skrll * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 1.31.2.2 skrll * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 1.31.2.2 skrll * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 1.31.2.2 skrll * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 1.31.2.2 skrll */ 33 1.31.2.2 skrll 34 1.31.2.2 skrll #include <sys/cdefs.h> 35 1.31.2.2 skrll #ifdef __FreeBSD__ 36 1.31.2.2 skrll __FBSDID("$FreeBSD: src/sys/net80211/ieee80211.c,v 1.11 2004/04/02 20:19:20 sam Exp $"); 37 1.31.2.2 skrll #else 38 1.31.2.7 skrll __KERNEL_RCSID(0, "$NetBSD: ieee80211.c,v 1.31.2.7 2005/11/10 14:10:51 skrll Exp $"); 39 1.31.2.2 skrll #endif 40 1.31.2.2 skrll 41 1.31.2.2 skrll /* 42 1.31.2.2 skrll * IEEE 802.11 generic handler 43 1.31.2.2 skrll */ 44 1.31.2.2 skrll 45 1.31.2.2 skrll #include "opt_inet.h" 46 1.31.2.2 skrll #include "bpfilter.h" 47 1.31.2.2 skrll 48 1.31.2.2 skrll #include <sys/param.h> 49 1.31.2.7 skrll #include <sys/systm.h> 50 1.31.2.2 skrll #include <sys/kernel.h> 51 1.31.2.7 skrll 52 1.31.2.2 skrll #include <sys/socket.h> 53 1.31.2.2 skrll #include <sys/sockio.h> 54 1.31.2.2 skrll #include <sys/endian.h> 55 1.31.2.2 skrll #include <sys/errno.h> 56 1.31.2.2 skrll #include <sys/proc.h> 57 1.31.2.2 skrll #include <sys/sysctl.h> 58 1.31.2.2 skrll 59 1.31.2.2 skrll #include <net/if.h> 60 1.31.2.2 skrll #include <net/if_media.h> 61 1.31.2.2 skrll #include <net/if_arp.h> 62 1.31.2.2 skrll #include <net/if_ether.h> 63 1.31.2.2 skrll #include <net/if_llc.h> 64 1.31.2.2 skrll 65 1.31.2.7 skrll #include <net80211/ieee80211_netbsd.h> 66 1.31.2.2 skrll #include <net80211/ieee80211_var.h> 67 1.31.2.2 skrll #include <net80211/ieee80211_sysctl.h> 68 1.31.2.2 skrll 69 1.31.2.2 skrll #include <net/bpf.h> 70 1.31.2.2 skrll 71 1.31.2.2 skrll #ifdef INET 72 1.31.2.7 skrll #include <netinet/in.h> 73 1.31.2.2 skrll #include <net/if_ether.h> 74 1.31.2.2 skrll #endif 75 1.31.2.2 skrll 76 1.31.2.2 skrll struct ieee80211com_head ieee80211com_head = 77 1.31.2.2 skrll LIST_HEAD_INITIALIZER(ieee80211com_head); 78 1.31.2.2 skrll 79 1.31.2.7 skrll const char *ieee80211_phymode_name[] = { 80 1.31.2.2 skrll "auto", /* IEEE80211_MODE_AUTO */ 81 1.31.2.2 skrll "11a", /* IEEE80211_MODE_11A */ 82 1.31.2.2 skrll "11b", /* IEEE80211_MODE_11B */ 83 1.31.2.2 skrll "11g", /* IEEE80211_MODE_11G */ 84 1.31.2.2 skrll "FH", /* IEEE80211_MODE_FH */ 85 1.31.2.7 skrll "turboA", /* IEEE80211_MODE_TURBO_A */ 86 1.31.2.7 skrll "turboG", /* IEEE80211_MODE_TURBO_G */ 87 1.31.2.2 skrll }; 88 1.31.2.2 skrll 89 1.31.2.7 skrll /* list of all instances */ 90 1.31.2.7 skrll SLIST_HEAD(ieee80211_list, ieee80211com); 91 1.31.2.7 skrll static struct ieee80211_list ieee80211_list = 92 1.31.2.7 skrll SLIST_HEAD_INITIALIZER(ieee80211_list); 93 1.31.2.7 skrll static u_int8_t ieee80211_vapmap[32]; /* enough for 256 */ 94 1.31.2.7 skrll 95 1.31.2.7 skrll static void 96 1.31.2.7 skrll ieee80211_add_vap(struct ieee80211com *ic) 97 1.31.2.7 skrll { 98 1.31.2.7 skrll #define N(a) (sizeof(a)/sizeof(a[0])) 99 1.31.2.7 skrll int i; 100 1.31.2.7 skrll int s; 101 1.31.2.7 skrll u_int8_t b; 102 1.31.2.7 skrll 103 1.31.2.7 skrll s = splnet(); 104 1.31.2.7 skrll ic->ic_vap = 0; 105 1.31.2.7 skrll for (i = 0; i < N(ieee80211_vapmap) && ieee80211_vapmap[i] == 0xff; i++) 106 1.31.2.7 skrll ic->ic_vap += NBBY; 107 1.31.2.7 skrll if (i == N(ieee80211_vapmap)) 108 1.31.2.7 skrll panic("vap table full"); 109 1.31.2.7 skrll for (b = ieee80211_vapmap[i]; b & 1; b >>= 1) 110 1.31.2.7 skrll ic->ic_vap++; 111 1.31.2.7 skrll setbit(ieee80211_vapmap, ic->ic_vap); 112 1.31.2.7 skrll SLIST_INSERT_HEAD(&ieee80211_list, ic, ic_next); 113 1.31.2.7 skrll splx(s); 114 1.31.2.7 skrll #undef N 115 1.31.2.7 skrll } 116 1.31.2.7 skrll 117 1.31.2.7 skrll static void 118 1.31.2.7 skrll ieee80211_remove_vap(struct ieee80211com *ic) 119 1.31.2.7 skrll { 120 1.31.2.7 skrll int s; 121 1.31.2.7 skrll 122 1.31.2.7 skrll s = splnet(); 123 1.31.2.7 skrll SLIST_REMOVE(&ieee80211_list, ic, ieee80211com, ic_next); 124 1.31.2.7 skrll IASSERT(ic->ic_vap < sizeof(ieee80211_vapmap)*NBBY, 125 1.31.2.7 skrll ("invalid vap id %d", ic->ic_vap)); 126 1.31.2.7 skrll IASSERT(isset(ieee80211_vapmap, ic->ic_vap), 127 1.31.2.7 skrll ("vap id %d not allocated", ic->ic_vap)); 128 1.31.2.7 skrll clrbit(ieee80211_vapmap, ic->ic_vap); 129 1.31.2.7 skrll splx(s); 130 1.31.2.7 skrll } 131 1.31.2.7 skrll 132 1.31.2.7 skrll /* 133 1.31.2.7 skrll * Default reset method for use with the ioctl support. This 134 1.31.2.7 skrll * method is invoked after any state change in the 802.11 135 1.31.2.7 skrll * layer that should be propagated to the hardware but not 136 1.31.2.7 skrll * require re-initialization of the 802.11 state machine (e.g 137 1.31.2.7 skrll * rescanning for an ap). We always return ENETRESET which 138 1.31.2.7 skrll * should cause the driver to re-initialize the device. Drivers 139 1.31.2.7 skrll * can override this method to implement more optimized support. 140 1.31.2.7 skrll */ 141 1.31.2.7 skrll static int 142 1.31.2.7 skrll ieee80211_default_reset(struct ifnet *ifp) 143 1.31.2.7 skrll { 144 1.31.2.7 skrll return ENETRESET; 145 1.31.2.7 skrll } 146 1.31.2.7 skrll 147 1.31.2.2 skrll void 148 1.31.2.7 skrll ieee80211_ifattach(struct ieee80211com *ic) 149 1.31.2.2 skrll { 150 1.31.2.7 skrll struct ifnet *ifp = ic->ic_ifp; 151 1.31.2.2 skrll struct ieee80211_channel *c; 152 1.31.2.2 skrll int i; 153 1.31.2.2 skrll 154 1.31.2.2 skrll ether_ifattach(ifp, ic->ic_myaddr); 155 1.31.2.2 skrll #if NBPFILTER > 0 156 1.31.2.2 skrll bpfattach2(ifp, DLT_IEEE802_11, 157 1.31.2.2 skrll sizeof(struct ieee80211_frame_addr4), &ic->ic_rawbpf); 158 1.31.2.2 skrll #endif 159 1.31.2.7 skrll 160 1.31.2.7 skrll ieee80211_crypto_attach(ic); 161 1.31.2.2 skrll 162 1.31.2.2 skrll /* 163 1.31.2.2 skrll * Fill in 802.11 available channel set, mark 164 1.31.2.2 skrll * all available channels as active, and pick 165 1.31.2.2 skrll * a default channel if not already specified. 166 1.31.2.2 skrll */ 167 1.31.2.2 skrll memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail)); 168 1.31.2.2 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO; 169 1.31.2.2 skrll for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 170 1.31.2.2 skrll c = &ic->ic_channels[i]; 171 1.31.2.2 skrll if (c->ic_flags) { 172 1.31.2.2 skrll /* 173 1.31.2.2 skrll * Verify driver passed us valid data. 174 1.31.2.2 skrll */ 175 1.31.2.2 skrll if (i != ieee80211_chan2ieee(ic, c)) { 176 1.31.2.2 skrll if_printf(ifp, "bad channel ignored; " 177 1.31.2.2 skrll "freq %u flags %x number %u\n", 178 1.31.2.2 skrll c->ic_freq, c->ic_flags, i); 179 1.31.2.2 skrll c->ic_flags = 0; /* NB: remove */ 180 1.31.2.2 skrll continue; 181 1.31.2.2 skrll } 182 1.31.2.2 skrll setbit(ic->ic_chan_avail, i); 183 1.31.2.2 skrll /* 184 1.31.2.2 skrll * Identify mode capabilities. 185 1.31.2.2 skrll */ 186 1.31.2.2 skrll if (IEEE80211_IS_CHAN_A(c)) 187 1.31.2.2 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_11A; 188 1.31.2.2 skrll if (IEEE80211_IS_CHAN_B(c)) 189 1.31.2.2 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_11B; 190 1.31.2.2 skrll if (IEEE80211_IS_CHAN_PUREG(c)) 191 1.31.2.2 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_11G; 192 1.31.2.2 skrll if (IEEE80211_IS_CHAN_FHSS(c)) 193 1.31.2.2 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_FH; 194 1.31.2.2 skrll if (IEEE80211_IS_CHAN_T(c)) 195 1.31.2.7 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO_A; 196 1.31.2.7 skrll if (IEEE80211_IS_CHAN_108G(c)) 197 1.31.2.7 skrll ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO_G; 198 1.31.2.2 skrll } 199 1.31.2.2 skrll } 200 1.31.2.2 skrll /* validate ic->ic_curmode */ 201 1.31.2.2 skrll if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0) 202 1.31.2.2 skrll ic->ic_curmode = IEEE80211_MODE_AUTO; 203 1.31.2.2 skrll ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */ 204 1.31.2.7 skrll #if 0 205 1.31.2.7 skrll /* 206 1.31.2.7 skrll * Enable WME by default if we're capable. 207 1.31.2.7 skrll */ 208 1.31.2.7 skrll if (ic->ic_caps & IEEE80211_C_WME) 209 1.31.2.7 skrll ic->ic_flags |= IEEE80211_F_WME; 210 1.31.2.7 skrll #endif 211 1.31.2.2 skrll (void) ieee80211_setmode(ic, ic->ic_curmode); 212 1.31.2.2 skrll 213 1.31.2.2 skrll if (ic->ic_lintval == 0) 214 1.31.2.7 skrll ic->ic_lintval = IEEE80211_BINTVAL_DEFAULT; 215 1.31.2.2 skrll ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */ 216 1.31.2.7 skrll ic->ic_dtim_period = IEEE80211_DTIM_DEFAULT; 217 1.31.2.7 skrll IEEE80211_BEACON_LOCK_INIT(ic, "beacon"); 218 1.31.2.7 skrll 219 1.31.2.7 skrll ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX; 220 1.31.2.2 skrll 221 1.31.2.2 skrll LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list); 222 1.31.2.2 skrll ieee80211_node_attach(ic); 223 1.31.2.7 skrll ieee80211_proto_attach(ic); 224 1.31.2.7 skrll 225 1.31.2.7 skrll ieee80211_add_vap(ic); 226 1.31.2.7 skrll 227 1.31.2.7 skrll ieee80211_sysctl_attach(ic); /* NB: requires ic_vap */ 228 1.31.2.7 skrll 229 1.31.2.7 skrll /* 230 1.31.2.7 skrll * Install a default reset method for the ioctl support. 231 1.31.2.7 skrll * The driver is expected to fill this in before calling us. 232 1.31.2.7 skrll */ 233 1.31.2.7 skrll if (ic->ic_reset == NULL) 234 1.31.2.7 skrll ic->ic_reset = ieee80211_default_reset; 235 1.31.2.2 skrll } 236 1.31.2.2 skrll 237 1.31.2.2 skrll void 238 1.31.2.7 skrll ieee80211_ifdetach(struct ieee80211com *ic) 239 1.31.2.2 skrll { 240 1.31.2.7 skrll struct ifnet *ifp = ic->ic_ifp; 241 1.31.2.7 skrll 242 1.31.2.7 skrll ieee80211_remove_vap(ic); 243 1.31.2.2 skrll 244 1.31.2.7 skrll ieee80211_sysctl_detach(ic); 245 1.31.2.7 skrll ieee80211_proto_detach(ic); 246 1.31.2.7 skrll ieee80211_crypto_detach(ic); 247 1.31.2.2 skrll ieee80211_node_detach(ic); 248 1.31.2.2 skrll LIST_REMOVE(ic, ic_list); 249 1.31.2.7 skrll ifmedia_delete_instance(&ic->ic_media, IFM_INST_ANY); 250 1.31.2.7 skrll 251 1.31.2.7 skrll IEEE80211_BEACON_LOCK_DESTROY(ic); 252 1.31.2.7 skrll 253 1.31.2.2 skrll #if NBPFILTER > 0 254 1.31.2.2 skrll bpfdetach(ifp); 255 1.31.2.2 skrll #endif 256 1.31.2.2 skrll ether_ifdetach(ifp); 257 1.31.2.2 skrll } 258 1.31.2.2 skrll 259 1.31.2.2 skrll /* 260 1.31.2.2 skrll * Convert MHz frequency to IEEE channel number. 261 1.31.2.2 skrll */ 262 1.31.2.2 skrll u_int 263 1.31.2.2 skrll ieee80211_mhz2ieee(u_int freq, u_int flags) 264 1.31.2.2 skrll { 265 1.31.2.2 skrll if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */ 266 1.31.2.2 skrll if (freq == 2484) 267 1.31.2.2 skrll return 14; 268 1.31.2.2 skrll if (freq < 2484) 269 1.31.2.2 skrll return (freq - 2407) / 5; 270 1.31.2.2 skrll else 271 1.31.2.2 skrll return 15 + ((freq - 2512) / 20); 272 1.31.2.2 skrll } else if (flags & IEEE80211_CHAN_5GHZ) { /* 5Ghz band */ 273 1.31.2.2 skrll return (freq - 5000) / 5; 274 1.31.2.2 skrll } else { /* either, guess */ 275 1.31.2.2 skrll if (freq == 2484) 276 1.31.2.2 skrll return 14; 277 1.31.2.2 skrll if (freq < 2484) 278 1.31.2.2 skrll return (freq - 2407) / 5; 279 1.31.2.2 skrll if (freq < 5000) 280 1.31.2.2 skrll return 15 + ((freq - 2512) / 20); 281 1.31.2.2 skrll return (freq - 5000) / 5; 282 1.31.2.2 skrll } 283 1.31.2.2 skrll } 284 1.31.2.2 skrll 285 1.31.2.2 skrll /* 286 1.31.2.2 skrll * Convert channel to IEEE channel number. 287 1.31.2.2 skrll */ 288 1.31.2.2 skrll u_int 289 1.31.2.2 skrll ieee80211_chan2ieee(struct ieee80211com *ic, struct ieee80211_channel *c) 290 1.31.2.2 skrll { 291 1.31.2.2 skrll if (ic->ic_channels <= c && c <= &ic->ic_channels[IEEE80211_CHAN_MAX]) 292 1.31.2.2 skrll return c - ic->ic_channels; 293 1.31.2.2 skrll else if (c == IEEE80211_CHAN_ANYC) 294 1.31.2.2 skrll return IEEE80211_CHAN_ANY; 295 1.31.2.2 skrll else if (c != NULL) { 296 1.31.2.7 skrll if_printf(ic->ic_ifp, "invalid channel freq %u flags %x\n", 297 1.31.2.2 skrll c->ic_freq, c->ic_flags); 298 1.31.2.2 skrll return 0; /* XXX */ 299 1.31.2.2 skrll } else { 300 1.31.2.7 skrll if_printf(ic->ic_ifp, "invalid channel (NULL)\n"); 301 1.31.2.2 skrll return 0; /* XXX */ 302 1.31.2.2 skrll } 303 1.31.2.2 skrll } 304 1.31.2.2 skrll 305 1.31.2.2 skrll /* 306 1.31.2.2 skrll * Convert IEEE channel number to MHz frequency. 307 1.31.2.2 skrll */ 308 1.31.2.2 skrll u_int 309 1.31.2.2 skrll ieee80211_ieee2mhz(u_int chan, u_int flags) 310 1.31.2.2 skrll { 311 1.31.2.2 skrll if (flags & IEEE80211_CHAN_2GHZ) { /* 2GHz band */ 312 1.31.2.2 skrll if (chan == 14) 313 1.31.2.2 skrll return 2484; 314 1.31.2.2 skrll if (chan < 14) 315 1.31.2.2 skrll return 2407 + chan*5; 316 1.31.2.2 skrll else 317 1.31.2.2 skrll return 2512 + ((chan-15)*20); 318 1.31.2.2 skrll } else if (flags & IEEE80211_CHAN_5GHZ) {/* 5Ghz band */ 319 1.31.2.2 skrll return 5000 + (chan*5); 320 1.31.2.2 skrll } else { /* either, guess */ 321 1.31.2.2 skrll if (chan == 14) 322 1.31.2.2 skrll return 2484; 323 1.31.2.2 skrll if (chan < 14) /* 0-13 */ 324 1.31.2.2 skrll return 2407 + chan*5; 325 1.31.2.2 skrll if (chan < 27) /* 15-26 */ 326 1.31.2.2 skrll return 2512 + ((chan-15)*20); 327 1.31.2.2 skrll return 5000 + (chan*5); 328 1.31.2.2 skrll } 329 1.31.2.2 skrll } 330 1.31.2.2 skrll 331 1.31.2.2 skrll /* 332 1.31.2.2 skrll * Setup the media data structures according to the channel and 333 1.31.2.2 skrll * rate tables. This must be called by the driver after 334 1.31.2.2 skrll * ieee80211_attach and before most anything else. 335 1.31.2.2 skrll */ 336 1.31.2.2 skrll void 337 1.31.2.7 skrll ieee80211_media_init(struct ieee80211com *ic, 338 1.31.2.2 skrll ifm_change_cb_t media_change, ifm_stat_cb_t media_stat) 339 1.31.2.2 skrll { 340 1.31.2.2 skrll #define ADD(_ic, _s, _o) \ 341 1.31.2.2 skrll ifmedia_add(&(_ic)->ic_media, \ 342 1.31.2.2 skrll IFM_MAKEWORD(IFM_IEEE80211, (_s), (_o), 0), 0, NULL) 343 1.31.2.7 skrll struct ifnet *ifp = ic->ic_ifp; 344 1.31.2.2 skrll struct ifmediareq imr; 345 1.31.2.2 skrll int i, j, mode, rate, maxrate, mword, mopt, r; 346 1.31.2.2 skrll struct ieee80211_rateset *rs; 347 1.31.2.2 skrll struct ieee80211_rateset allrates; 348 1.31.2.2 skrll 349 1.31.2.2 skrll /* 350 1.31.2.2 skrll * Do late attach work that must wait for any subclass 351 1.31.2.2 skrll * (i.e. driver) work such as overriding methods. 352 1.31.2.2 skrll */ 353 1.31.2.2 skrll ieee80211_node_lateattach(ic); 354 1.31.2.2 skrll 355 1.31.2.7 skrll #ifdef IEEE80211_NO_HOSTAP 356 1.31.2.7 skrll ic->ic_caps &= ~IEEE80211_C_HOSTAP; 357 1.31.2.7 skrll #endif /* IEEE80211_NO_HOSTAP */ 358 1.31.2.7 skrll 359 1.31.2.2 skrll /* 360 1.31.2.2 skrll * Fill in media characteristics. 361 1.31.2.2 skrll */ 362 1.31.2.2 skrll ifmedia_init(&ic->ic_media, 0, media_change, media_stat); 363 1.31.2.2 skrll maxrate = 0; 364 1.31.2.2 skrll memset(&allrates, 0, sizeof(allrates)); 365 1.31.2.2 skrll for (mode = IEEE80211_MODE_AUTO; mode < IEEE80211_MODE_MAX; mode++) { 366 1.31.2.7 skrll static const u_int mopts[] = { 367 1.31.2.2 skrll IFM_AUTO, 368 1.31.2.2 skrll IFM_IEEE80211_11A, 369 1.31.2.2 skrll IFM_IEEE80211_11B, 370 1.31.2.2 skrll IFM_IEEE80211_11G, 371 1.31.2.2 skrll IFM_IEEE80211_FH, 372 1.31.2.2 skrll IFM_IEEE80211_11A | IFM_IEEE80211_TURBO, 373 1.31.2.7 skrll IFM_IEEE80211_11G | IFM_IEEE80211_TURBO, 374 1.31.2.2 skrll }; 375 1.31.2.2 skrll if ((ic->ic_modecaps & (1<<mode)) == 0) 376 1.31.2.2 skrll continue; 377 1.31.2.2 skrll mopt = mopts[mode]; 378 1.31.2.2 skrll ADD(ic, IFM_AUTO, mopt); /* e.g. 11a auto */ 379 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_IBSS) 380 1.31.2.2 skrll ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_ADHOC); 381 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_HOSTAP) 382 1.31.2.2 skrll ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_HOSTAP); 383 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_AHDEMO) 384 1.31.2.2 skrll ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0); 385 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_MONITOR) 386 1.31.2.2 skrll ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_MONITOR); 387 1.31.2.2 skrll if (mode == IEEE80211_MODE_AUTO) 388 1.31.2.2 skrll continue; 389 1.31.2.2 skrll rs = &ic->ic_sup_rates[mode]; 390 1.31.2.2 skrll for (i = 0; i < rs->rs_nrates; i++) { 391 1.31.2.2 skrll rate = rs->rs_rates[i]; 392 1.31.2.2 skrll mword = ieee80211_rate2media(ic, rate, mode); 393 1.31.2.2 skrll if (mword == 0) 394 1.31.2.2 skrll continue; 395 1.31.2.2 skrll ADD(ic, mword, mopt); 396 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_IBSS) 397 1.31.2.2 skrll ADD(ic, mword, mopt | IFM_IEEE80211_ADHOC); 398 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_HOSTAP) 399 1.31.2.2 skrll ADD(ic, mword, mopt | IFM_IEEE80211_HOSTAP); 400 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_AHDEMO) 401 1.31.2.2 skrll ADD(ic, mword, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0); 402 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_MONITOR) 403 1.31.2.2 skrll ADD(ic, mword, mopt | IFM_IEEE80211_MONITOR); 404 1.31.2.2 skrll /* 405 1.31.2.2 skrll * Add rate to the collection of all rates. 406 1.31.2.2 skrll */ 407 1.31.2.2 skrll r = rate & IEEE80211_RATE_VAL; 408 1.31.2.2 skrll for (j = 0; j < allrates.rs_nrates; j++) 409 1.31.2.2 skrll if (allrates.rs_rates[j] == r) 410 1.31.2.2 skrll break; 411 1.31.2.2 skrll if (j == allrates.rs_nrates) { 412 1.31.2.2 skrll /* unique, add to the set */ 413 1.31.2.2 skrll allrates.rs_rates[j] = r; 414 1.31.2.2 skrll allrates.rs_nrates++; 415 1.31.2.2 skrll } 416 1.31.2.2 skrll rate = (rate & IEEE80211_RATE_VAL) / 2; 417 1.31.2.2 skrll if (rate > maxrate) 418 1.31.2.2 skrll maxrate = rate; 419 1.31.2.2 skrll } 420 1.31.2.2 skrll } 421 1.31.2.2 skrll for (i = 0; i < allrates.rs_nrates; i++) { 422 1.31.2.2 skrll mword = ieee80211_rate2media(ic, allrates.rs_rates[i], 423 1.31.2.2 skrll IEEE80211_MODE_AUTO); 424 1.31.2.2 skrll if (mword == 0) 425 1.31.2.2 skrll continue; 426 1.31.2.2 skrll mword = IFM_SUBTYPE(mword); /* remove media options */ 427 1.31.2.2 skrll ADD(ic, mword, 0); 428 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_IBSS) 429 1.31.2.2 skrll ADD(ic, mword, IFM_IEEE80211_ADHOC); 430 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_HOSTAP) 431 1.31.2.2 skrll ADD(ic, mword, IFM_IEEE80211_HOSTAP); 432 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_AHDEMO) 433 1.31.2.2 skrll ADD(ic, mword, IFM_IEEE80211_ADHOC | IFM_FLAG0); 434 1.31.2.2 skrll if (ic->ic_caps & IEEE80211_C_MONITOR) 435 1.31.2.2 skrll ADD(ic, mword, IFM_IEEE80211_MONITOR); 436 1.31.2.2 skrll } 437 1.31.2.2 skrll ieee80211_media_status(ifp, &imr); 438 1.31.2.2 skrll ifmedia_set(&ic->ic_media, imr.ifm_active); 439 1.31.2.7 skrll 440 1.31.2.2 skrll if (maxrate) 441 1.31.2.2 skrll ifp->if_baudrate = IF_Mbps(maxrate); 442 1.31.2.2 skrll #undef ADD 443 1.31.2.2 skrll } 444 1.31.2.2 skrll 445 1.31.2.7 skrll void 446 1.31.2.7 skrll ieee80211_announce(struct ieee80211com *ic) 447 1.31.2.7 skrll { 448 1.31.2.7 skrll struct ifnet *ifp = ic->ic_ifp; 449 1.31.2.7 skrll int i, mode, rate, mword; 450 1.31.2.7 skrll struct ieee80211_rateset *rs; 451 1.31.2.7 skrll 452 1.31.2.7 skrll for (mode = IEEE80211_MODE_11A; mode < IEEE80211_MODE_MAX; mode++) { 453 1.31.2.7 skrll if ((ic->ic_modecaps & (1<<mode)) == 0) 454 1.31.2.7 skrll continue; 455 1.31.2.7 skrll if_printf(ifp, "%s rates: ", ieee80211_phymode_name[mode]); 456 1.31.2.7 skrll rs = &ic->ic_sup_rates[mode]; 457 1.31.2.7 skrll for (i = 0; i < rs->rs_nrates; i++) { 458 1.31.2.7 skrll rate = rs->rs_rates[i]; 459 1.31.2.7 skrll mword = ieee80211_rate2media(ic, rate, mode); 460 1.31.2.7 skrll if (mword == 0) 461 1.31.2.7 skrll continue; 462 1.31.2.7 skrll printf("%s%d%sMbps", (i != 0 ? " " : ""), 463 1.31.2.7 skrll (rate & IEEE80211_RATE_VAL) / 2, 464 1.31.2.7 skrll ((rate & 0x1) != 0 ? ".5" : "")); 465 1.31.2.7 skrll } 466 1.31.2.7 skrll printf("\n"); 467 1.31.2.7 skrll } 468 1.31.2.7 skrll } 469 1.31.2.7 skrll 470 1.31.2.2 skrll static int 471 1.31.2.2 skrll findrate(struct ieee80211com *ic, enum ieee80211_phymode mode, int rate) 472 1.31.2.2 skrll { 473 1.31.2.2 skrll #define IEEERATE(_ic,_m,_i) \ 474 1.31.2.2 skrll ((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL) 475 1.31.2.2 skrll int i, nrates = ic->ic_sup_rates[mode].rs_nrates; 476 1.31.2.2 skrll for (i = 0; i < nrates; i++) 477 1.31.2.2 skrll if (IEEERATE(ic, mode, i) == rate) 478 1.31.2.2 skrll return i; 479 1.31.2.2 skrll return -1; 480 1.31.2.2 skrll #undef IEEERATE 481 1.31.2.2 skrll } 482 1.31.2.2 skrll 483 1.31.2.2 skrll /* 484 1.31.2.7 skrll * Find an instance by it's mac address. 485 1.31.2.7 skrll */ 486 1.31.2.7 skrll struct ieee80211com * 487 1.31.2.7 skrll ieee80211_find_vap(const u_int8_t mac[IEEE80211_ADDR_LEN]) 488 1.31.2.7 skrll { 489 1.31.2.7 skrll int s; 490 1.31.2.7 skrll struct ieee80211com *ic; 491 1.31.2.7 skrll 492 1.31.2.7 skrll s = splnet(); 493 1.31.2.7 skrll SLIST_FOREACH(ic, &ieee80211_list, ic_next) 494 1.31.2.7 skrll if (IEEE80211_ADDR_EQ(mac, ic->ic_myaddr)) 495 1.31.2.7 skrll break; 496 1.31.2.7 skrll splx(s); 497 1.31.2.7 skrll return ic; 498 1.31.2.7 skrll } 499 1.31.2.7 skrll 500 1.31.2.7 skrll static struct ieee80211com * 501 1.31.2.7 skrll ieee80211_find_instance(struct ifnet *ifp) 502 1.31.2.7 skrll { 503 1.31.2.7 skrll int s; 504 1.31.2.7 skrll struct ieee80211com *ic; 505 1.31.2.7 skrll 506 1.31.2.7 skrll s = splnet(); 507 1.31.2.7 skrll /* XXX not right for multiple instances but works for now */ 508 1.31.2.7 skrll SLIST_FOREACH(ic, &ieee80211_list, ic_next) 509 1.31.2.7 skrll if (ic->ic_ifp == ifp) 510 1.31.2.7 skrll break; 511 1.31.2.7 skrll splx(s); 512 1.31.2.7 skrll return ic; 513 1.31.2.7 skrll } 514 1.31.2.7 skrll 515 1.31.2.7 skrll /* 516 1.31.2.2 skrll * Handle a media change request. 517 1.31.2.2 skrll */ 518 1.31.2.2 skrll int 519 1.31.2.2 skrll ieee80211_media_change(struct ifnet *ifp) 520 1.31.2.2 skrll { 521 1.31.2.7 skrll struct ieee80211com *ic; 522 1.31.2.2 skrll struct ifmedia_entry *ime; 523 1.31.2.2 skrll enum ieee80211_opmode newopmode; 524 1.31.2.2 skrll enum ieee80211_phymode newphymode; 525 1.31.2.2 skrll int i, j, newrate, error = 0; 526 1.31.2.2 skrll 527 1.31.2.7 skrll ic = ieee80211_find_instance(ifp); 528 1.31.2.7 skrll if (!ic) { 529 1.31.2.7 skrll if_printf(ifp, "%s: no 802.11 instance!\n", __func__); 530 1.31.2.7 skrll return EINVAL; 531 1.31.2.7 skrll } 532 1.31.2.2 skrll ime = ic->ic_media.ifm_cur; 533 1.31.2.2 skrll /* 534 1.31.2.2 skrll * First, identify the phy mode. 535 1.31.2.2 skrll */ 536 1.31.2.2 skrll switch (IFM_MODE(ime->ifm_media)) { 537 1.31.2.2 skrll case IFM_IEEE80211_11A: 538 1.31.2.2 skrll newphymode = IEEE80211_MODE_11A; 539 1.31.2.2 skrll break; 540 1.31.2.2 skrll case IFM_IEEE80211_11B: 541 1.31.2.2 skrll newphymode = IEEE80211_MODE_11B; 542 1.31.2.2 skrll break; 543 1.31.2.2 skrll case IFM_IEEE80211_11G: 544 1.31.2.2 skrll newphymode = IEEE80211_MODE_11G; 545 1.31.2.2 skrll break; 546 1.31.2.2 skrll case IFM_IEEE80211_FH: 547 1.31.2.2 skrll newphymode = IEEE80211_MODE_FH; 548 1.31.2.2 skrll break; 549 1.31.2.2 skrll case IFM_AUTO: 550 1.31.2.2 skrll newphymode = IEEE80211_MODE_AUTO; 551 1.31.2.2 skrll break; 552 1.31.2.2 skrll default: 553 1.31.2.2 skrll return EINVAL; 554 1.31.2.2 skrll } 555 1.31.2.2 skrll /* 556 1.31.2.7 skrll * Turbo mode is an ``option''. 557 1.31.2.7 skrll * XXX does not apply to AUTO 558 1.31.2.2 skrll */ 559 1.31.2.2 skrll if (ime->ifm_media & IFM_IEEE80211_TURBO) { 560 1.31.2.7 skrll if (newphymode == IEEE80211_MODE_11A) 561 1.31.2.7 skrll newphymode = IEEE80211_MODE_TURBO_A; 562 1.31.2.7 skrll else if (newphymode == IEEE80211_MODE_11G) 563 1.31.2.7 skrll newphymode = IEEE80211_MODE_TURBO_G; 564 1.31.2.7 skrll else 565 1.31.2.2 skrll return EINVAL; 566 1.31.2.2 skrll } 567 1.31.2.2 skrll /* 568 1.31.2.2 skrll * Validate requested mode is available. 569 1.31.2.2 skrll */ 570 1.31.2.2 skrll if ((ic->ic_modecaps & (1<<newphymode)) == 0) 571 1.31.2.2 skrll return EINVAL; 572 1.31.2.2 skrll 573 1.31.2.2 skrll /* 574 1.31.2.2 skrll * Next, the fixed/variable rate. 575 1.31.2.2 skrll */ 576 1.31.2.2 skrll i = -1; 577 1.31.2.2 skrll if (IFM_SUBTYPE(ime->ifm_media) != IFM_AUTO) { 578 1.31.2.2 skrll /* 579 1.31.2.2 skrll * Convert media subtype to rate. 580 1.31.2.2 skrll */ 581 1.31.2.2 skrll newrate = ieee80211_media2rate(ime->ifm_media); 582 1.31.2.2 skrll if (newrate == 0) 583 1.31.2.2 skrll return EINVAL; 584 1.31.2.2 skrll /* 585 1.31.2.2 skrll * Check the rate table for the specified/current phy. 586 1.31.2.2 skrll */ 587 1.31.2.2 skrll if (newphymode == IEEE80211_MODE_AUTO) { 588 1.31.2.2 skrll /* 589 1.31.2.2 skrll * In autoselect mode search for the rate. 590 1.31.2.2 skrll */ 591 1.31.2.2 skrll for (j = IEEE80211_MODE_11A; 592 1.31.2.2 skrll j < IEEE80211_MODE_MAX; j++) { 593 1.31.2.2 skrll if ((ic->ic_modecaps & (1<<j)) == 0) 594 1.31.2.2 skrll continue; 595 1.31.2.2 skrll i = findrate(ic, j, newrate); 596 1.31.2.2 skrll if (i != -1) { 597 1.31.2.2 skrll /* lock mode too */ 598 1.31.2.2 skrll newphymode = j; 599 1.31.2.2 skrll break; 600 1.31.2.2 skrll } 601 1.31.2.2 skrll } 602 1.31.2.2 skrll } else { 603 1.31.2.2 skrll i = findrate(ic, newphymode, newrate); 604 1.31.2.2 skrll } 605 1.31.2.2 skrll if (i == -1) /* mode/rate mismatch */ 606 1.31.2.2 skrll return EINVAL; 607 1.31.2.2 skrll } 608 1.31.2.2 skrll /* NB: defer rate setting to later */ 609 1.31.2.2 skrll 610 1.31.2.2 skrll /* 611 1.31.2.2 skrll * Deduce new operating mode but don't install it just yet. 612 1.31.2.2 skrll */ 613 1.31.2.2 skrll if ((ime->ifm_media & (IFM_IEEE80211_ADHOC|IFM_FLAG0)) == 614 1.31.2.2 skrll (IFM_IEEE80211_ADHOC|IFM_FLAG0)) 615 1.31.2.2 skrll newopmode = IEEE80211_M_AHDEMO; 616 1.31.2.2 skrll else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 617 1.31.2.2 skrll newopmode = IEEE80211_M_HOSTAP; 618 1.31.2.2 skrll else if (ime->ifm_media & IFM_IEEE80211_ADHOC) 619 1.31.2.2 skrll newopmode = IEEE80211_M_IBSS; 620 1.31.2.2 skrll else if (ime->ifm_media & IFM_IEEE80211_MONITOR) 621 1.31.2.2 skrll newopmode = IEEE80211_M_MONITOR; 622 1.31.2.2 skrll else 623 1.31.2.2 skrll newopmode = IEEE80211_M_STA; 624 1.31.2.2 skrll 625 1.31.2.7 skrll #ifndef IEEE80211_NO_HOSTAP 626 1.31.2.2 skrll /* 627 1.31.2.2 skrll * Autoselect doesn't make sense when operating as an AP. 628 1.31.2.2 skrll * If no phy mode has been selected, pick one and lock it 629 1.31.2.2 skrll * down so rate tables can be used in forming beacon frames 630 1.31.2.2 skrll * and the like. 631 1.31.2.2 skrll */ 632 1.31.2.2 skrll if (newopmode == IEEE80211_M_HOSTAP && 633 1.31.2.2 skrll newphymode == IEEE80211_MODE_AUTO) { 634 1.31.2.2 skrll for (j = IEEE80211_MODE_11A; j < IEEE80211_MODE_MAX; j++) 635 1.31.2.2 skrll if (ic->ic_modecaps & (1<<j)) { 636 1.31.2.2 skrll newphymode = j; 637 1.31.2.2 skrll break; 638 1.31.2.2 skrll } 639 1.31.2.2 skrll } 640 1.31.2.7 skrll #endif /* !IEEE80211_NO_HOSTAP */ 641 1.31.2.2 skrll 642 1.31.2.2 skrll /* 643 1.31.2.2 skrll * Handle phy mode change. 644 1.31.2.2 skrll */ 645 1.31.2.2 skrll if (ic->ic_curmode != newphymode) { /* change phy mode */ 646 1.31.2.2 skrll error = ieee80211_setmode(ic, newphymode); 647 1.31.2.2 skrll if (error != 0) 648 1.31.2.2 skrll return error; 649 1.31.2.2 skrll error = ENETRESET; 650 1.31.2.2 skrll } 651 1.31.2.2 skrll 652 1.31.2.2 skrll /* 653 1.31.2.2 skrll * Committed to changes, install the rate setting. 654 1.31.2.2 skrll */ 655 1.31.2.2 skrll if (ic->ic_fixed_rate != i) { 656 1.31.2.2 skrll ic->ic_fixed_rate = i; /* set fixed tx rate */ 657 1.31.2.2 skrll error = ENETRESET; 658 1.31.2.2 skrll } 659 1.31.2.2 skrll 660 1.31.2.2 skrll /* 661 1.31.2.2 skrll * Handle operating mode change. 662 1.31.2.2 skrll */ 663 1.31.2.2 skrll if (ic->ic_opmode != newopmode) { 664 1.31.2.2 skrll ic->ic_opmode = newopmode; 665 1.31.2.2 skrll switch (newopmode) { 666 1.31.2.2 skrll case IEEE80211_M_AHDEMO: 667 1.31.2.2 skrll case IEEE80211_M_HOSTAP: 668 1.31.2.2 skrll case IEEE80211_M_STA: 669 1.31.2.2 skrll case IEEE80211_M_MONITOR: 670 1.31.2.2 skrll ic->ic_flags &= ~IEEE80211_F_IBSSON; 671 1.31.2.2 skrll break; 672 1.31.2.2 skrll case IEEE80211_M_IBSS: 673 1.31.2.2 skrll ic->ic_flags |= IEEE80211_F_IBSSON; 674 1.31.2.2 skrll break; 675 1.31.2.2 skrll } 676 1.31.2.7 skrll /* 677 1.31.2.7 skrll * Yech, slot time may change depending on the 678 1.31.2.7 skrll * operating mode so reset it to be sure everything 679 1.31.2.7 skrll * is setup appropriately. 680 1.31.2.7 skrll */ 681 1.31.2.7 skrll ieee80211_reset_erp(ic); 682 1.31.2.7 skrll ieee80211_wme_initparams(ic); /* after opmode change */ 683 1.31.2.2 skrll error = ENETRESET; 684 1.31.2.2 skrll } 685 1.31.2.2 skrll #ifdef notdef 686 1.31.2.2 skrll if (error == 0) 687 1.31.2.2 skrll ifp->if_baudrate = ifmedia_baudrate(ime->ifm_media); 688 1.31.2.2 skrll #endif 689 1.31.2.2 skrll return error; 690 1.31.2.2 skrll } 691 1.31.2.2 skrll 692 1.31.2.2 skrll void 693 1.31.2.2 skrll ieee80211_media_status(struct ifnet *ifp, struct ifmediareq *imr) 694 1.31.2.2 skrll { 695 1.31.2.7 skrll struct ieee80211com *ic; 696 1.31.2.7 skrll struct ieee80211_rateset *rs; 697 1.31.2.2 skrll 698 1.31.2.7 skrll ic = ieee80211_find_instance(ifp); 699 1.31.2.7 skrll if (!ic) { 700 1.31.2.7 skrll if_printf(ifp, "%s: no 802.11 instance!\n", __func__); 701 1.31.2.7 skrll return; 702 1.31.2.7 skrll } 703 1.31.2.2 skrll imr->ifm_status = IFM_AVALID; 704 1.31.2.2 skrll imr->ifm_active = IFM_IEEE80211; 705 1.31.2.2 skrll if (ic->ic_state == IEEE80211_S_RUN) 706 1.31.2.2 skrll imr->ifm_status |= IFM_ACTIVE; 707 1.31.2.7 skrll /* 708 1.31.2.7 skrll * Calculate a current rate if possible. 709 1.31.2.7 skrll */ 710 1.31.2.7 skrll if (ic->ic_fixed_rate != -1) { 711 1.31.2.7 skrll /* 712 1.31.2.7 skrll * A fixed rate is set, report that. 713 1.31.2.7 skrll */ 714 1.31.2.7 skrll rs = &ic->ic_sup_rates[ic->ic_curmode]; 715 1.31.2.7 skrll imr->ifm_active |= ieee80211_rate2media(ic, 716 1.31.2.7 skrll rs->rs_rates[ic->ic_fixed_rate], ic->ic_curmode); 717 1.31.2.7 skrll } else if (ic->ic_opmode == IEEE80211_M_STA) { 718 1.31.2.7 skrll /* 719 1.31.2.7 skrll * In station mode report the current transmit rate. 720 1.31.2.7 skrll */ 721 1.31.2.7 skrll rs = &ic->ic_bss->ni_rates; 722 1.31.2.7 skrll imr->ifm_active |= ieee80211_rate2media(ic, 723 1.31.2.7 skrll rs->rs_rates[ic->ic_bss->ni_txrate], ic->ic_curmode); 724 1.31.2.7 skrll } else 725 1.31.2.7 skrll imr->ifm_active |= IFM_AUTO; 726 1.31.2.2 skrll switch (ic->ic_opmode) { 727 1.31.2.2 skrll case IEEE80211_M_STA: 728 1.31.2.2 skrll break; 729 1.31.2.2 skrll case IEEE80211_M_IBSS: 730 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_ADHOC; 731 1.31.2.2 skrll break; 732 1.31.2.2 skrll case IEEE80211_M_AHDEMO: 733 1.31.2.2 skrll /* should not come here */ 734 1.31.2.2 skrll break; 735 1.31.2.2 skrll case IEEE80211_M_HOSTAP: 736 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_HOSTAP; 737 1.31.2.2 skrll break; 738 1.31.2.2 skrll case IEEE80211_M_MONITOR: 739 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_MONITOR; 740 1.31.2.2 skrll break; 741 1.31.2.2 skrll } 742 1.31.2.2 skrll switch (ic->ic_curmode) { 743 1.31.2.2 skrll case IEEE80211_MODE_11A: 744 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_11A; 745 1.31.2.2 skrll break; 746 1.31.2.2 skrll case IEEE80211_MODE_11B: 747 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_11B; 748 1.31.2.2 skrll break; 749 1.31.2.2 skrll case IEEE80211_MODE_11G: 750 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_11G; 751 1.31.2.2 skrll break; 752 1.31.2.2 skrll case IEEE80211_MODE_FH: 753 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_FH; 754 1.31.2.2 skrll break; 755 1.31.2.7 skrll case IEEE80211_MODE_TURBO_A: 756 1.31.2.2 skrll imr->ifm_active |= IFM_IEEE80211_11A 757 1.31.2.2 skrll | IFM_IEEE80211_TURBO; 758 1.31.2.2 skrll break; 759 1.31.2.7 skrll case IEEE80211_MODE_TURBO_G: 760 1.31.2.7 skrll imr->ifm_active |= IFM_IEEE80211_11G 761 1.31.2.7 skrll | IFM_IEEE80211_TURBO; 762 1.31.2.7 skrll break; 763 1.31.2.2 skrll } 764 1.31.2.2 skrll } 765 1.31.2.2 skrll 766 1.31.2.2 skrll void 767 1.31.2.7 skrll ieee80211_watchdog(struct ieee80211com *ic) 768 1.31.2.2 skrll { 769 1.31.2.7 skrll struct ieee80211_node_table *nt; 770 1.31.2.7 skrll int need_inact_timer = 0; 771 1.31.2.2 skrll 772 1.31.2.7 skrll if (ic->ic_state != IEEE80211_S_INIT) { 773 1.31.2.7 skrll if (ic->ic_mgt_timer && --ic->ic_mgt_timer == 0) 774 1.31.2.7 skrll ieee80211_new_state(ic, IEEE80211_S_SCAN, 0); 775 1.31.2.7 skrll nt = &ic->ic_scan; 776 1.31.2.7 skrll if (nt->nt_inact_timer) { 777 1.31.2.7 skrll if (--nt->nt_inact_timer == 0) 778 1.31.2.7 skrll nt->nt_timeout(nt); 779 1.31.2.7 skrll need_inact_timer += nt->nt_inact_timer; 780 1.31.2.7 skrll } 781 1.31.2.7 skrll nt = &ic->ic_sta; 782 1.31.2.7 skrll if (nt->nt_inact_timer) { 783 1.31.2.7 skrll if (--nt->nt_inact_timer == 0) 784 1.31.2.7 skrll nt->nt_timeout(nt); 785 1.31.2.7 skrll need_inact_timer += nt->nt_inact_timer; 786 1.31.2.2 skrll } 787 1.31.2.2 skrll } 788 1.31.2.7 skrll if (ic->ic_mgt_timer != 0 || need_inact_timer) 789 1.31.2.7 skrll ic->ic_ifp->if_timer = 1; 790 1.31.2.2 skrll } 791 1.31.2.2 skrll 792 1.31.2.2 skrll /* 793 1.31.2.2 skrll * Set the current phy mode and recalculate the active channel 794 1.31.2.2 skrll * set based on the available channels for this mode. Also 795 1.31.2.2 skrll * select a new default/current channel if the current one is 796 1.31.2.2 skrll * inappropriate for this mode. 797 1.31.2.2 skrll */ 798 1.31.2.2 skrll int 799 1.31.2.2 skrll ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode) 800 1.31.2.2 skrll { 801 1.31.2.2 skrll #define N(a) (sizeof(a) / sizeof(a[0])) 802 1.31.2.2 skrll static const u_int chanflags[] = { 803 1.31.2.2 skrll 0, /* IEEE80211_MODE_AUTO */ 804 1.31.2.2 skrll IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */ 805 1.31.2.2 skrll IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */ 806 1.31.2.2 skrll IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */ 807 1.31.2.2 skrll IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */ 808 1.31.2.7 skrll IEEE80211_CHAN_T, /* IEEE80211_MODE_TURBO_A */ 809 1.31.2.7 skrll IEEE80211_CHAN_108G, /* IEEE80211_MODE_TURBO_G */ 810 1.31.2.2 skrll }; 811 1.31.2.2 skrll struct ieee80211_channel *c; 812 1.31.2.2 skrll u_int modeflags; 813 1.31.2.2 skrll int i; 814 1.31.2.2 skrll 815 1.31.2.2 skrll /* validate new mode */ 816 1.31.2.2 skrll if ((ic->ic_modecaps & (1<<mode)) == 0) { 817 1.31.2.2 skrll IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 818 1.31.2.7 skrll "%s: mode %u not supported (caps 0x%x)\n", 819 1.31.2.7 skrll __func__, mode, ic->ic_modecaps); 820 1.31.2.2 skrll return EINVAL; 821 1.31.2.2 skrll } 822 1.31.2.2 skrll 823 1.31.2.2 skrll /* 824 1.31.2.2 skrll * Verify at least one channel is present in the available 825 1.31.2.2 skrll * channel list before committing to the new mode. 826 1.31.2.2 skrll */ 827 1.31.2.2 skrll IASSERT(mode < N(chanflags), ("Unexpected mode %u", mode)); 828 1.31.2.2 skrll modeflags = chanflags[mode]; 829 1.31.2.2 skrll for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 830 1.31.2.2 skrll c = &ic->ic_channels[i]; 831 1.31.2.2 skrll if (mode == IEEE80211_MODE_AUTO) { 832 1.31.2.2 skrll /* ignore turbo channels for autoselect */ 833 1.31.2.2 skrll if ((c->ic_flags &~ IEEE80211_CHAN_TURBO) != 0) 834 1.31.2.2 skrll break; 835 1.31.2.2 skrll } else { 836 1.31.2.2 skrll if ((c->ic_flags & modeflags) == modeflags) 837 1.31.2.2 skrll break; 838 1.31.2.2 skrll } 839 1.31.2.2 skrll } 840 1.31.2.2 skrll if (i > IEEE80211_CHAN_MAX) { 841 1.31.2.2 skrll IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY, 842 1.31.2.7 skrll "%s: no channels found for mode %u\n", __func__, mode); 843 1.31.2.2 skrll return EINVAL; 844 1.31.2.2 skrll } 845 1.31.2.2 skrll 846 1.31.2.2 skrll /* 847 1.31.2.2 skrll * Calculate the active channel set. 848 1.31.2.2 skrll */ 849 1.31.2.2 skrll memset(ic->ic_chan_active, 0, sizeof(ic->ic_chan_active)); 850 1.31.2.2 skrll for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 851 1.31.2.2 skrll c = &ic->ic_channels[i]; 852 1.31.2.2 skrll if (mode == IEEE80211_MODE_AUTO) { 853 1.31.2.2 skrll /* take anything but pure turbo channels */ 854 1.31.2.2 skrll if ((c->ic_flags &~ IEEE80211_CHAN_TURBO) != 0) 855 1.31.2.2 skrll setbit(ic->ic_chan_active, i); 856 1.31.2.2 skrll } else { 857 1.31.2.2 skrll if ((c->ic_flags & modeflags) == modeflags) 858 1.31.2.2 skrll setbit(ic->ic_chan_active, i); 859 1.31.2.2 skrll } 860 1.31.2.2 skrll } 861 1.31.2.2 skrll /* 862 1.31.2.2 skrll * If no current/default channel is setup or the current 863 1.31.2.2 skrll * channel is wrong for the mode then pick the first 864 1.31.2.2 skrll * available channel from the active list. This is likely 865 1.31.2.2 skrll * not the right one. 866 1.31.2.2 skrll */ 867 1.31.2.2 skrll if (ic->ic_ibss_chan == NULL || 868 1.31.2.2 skrll isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) { 869 1.31.2.2 skrll for (i = 0; i <= IEEE80211_CHAN_MAX; i++) 870 1.31.2.2 skrll if (isset(ic->ic_chan_active, i)) { 871 1.31.2.2 skrll ic->ic_ibss_chan = &ic->ic_channels[i]; 872 1.31.2.2 skrll break; 873 1.31.2.2 skrll } 874 1.31.2.2 skrll IASSERT(ic->ic_ibss_chan != NULL && 875 1.31.2.2 skrll isset(ic->ic_chan_active, 876 1.31.2.2 skrll ieee80211_chan2ieee(ic, ic->ic_ibss_chan)), 877 1.31.2.2 skrll ("Bad IBSS channel %u", 878 1.31.2.2 skrll ieee80211_chan2ieee(ic, ic->ic_ibss_chan))); 879 1.31.2.2 skrll } 880 1.31.2.7 skrll /* 881 1.31.2.7 skrll * If the desired channel is set but no longer valid then reset it. 882 1.31.2.7 skrll */ 883 1.31.2.7 skrll if (ic->ic_des_chan != IEEE80211_CHAN_ANYC && 884 1.31.2.7 skrll isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ic->ic_des_chan))) 885 1.31.2.7 skrll ic->ic_des_chan = IEEE80211_CHAN_ANYC; 886 1.31.2.2 skrll 887 1.31.2.2 skrll /* 888 1.31.2.7 skrll * Do mode-specific rate setup. 889 1.31.2.2 skrll */ 890 1.31.2.2 skrll if (mode == IEEE80211_MODE_11G) { 891 1.31.2.7 skrll /* 892 1.31.2.7 skrll * Use a mixed 11b/11g rate set. 893 1.31.2.7 skrll */ 894 1.31.2.7 skrll ieee80211_set11gbasicrates(&ic->ic_sup_rates[mode], 895 1.31.2.7 skrll IEEE80211_MODE_11G); 896 1.31.2.7 skrll } else if (mode == IEEE80211_MODE_11B) { 897 1.31.2.7 skrll /* 898 1.31.2.7 skrll * Force pure 11b rate set. 899 1.31.2.7 skrll */ 900 1.31.2.7 skrll ieee80211_set11gbasicrates(&ic->ic_sup_rates[mode], 901 1.31.2.7 skrll IEEE80211_MODE_11B); 902 1.31.2.7 skrll } 903 1.31.2.7 skrll /* 904 1.31.2.7 skrll * Setup an initial rate set according to the 905 1.31.2.7 skrll * current/default channel selected above. This 906 1.31.2.7 skrll * will be changed when scanning but must exist 907 1.31.2.7 skrll * now so driver have a consistent state of ic_ibss_chan. 908 1.31.2.7 skrll */ 909 1.31.2.7 skrll if (ic->ic_bss) /* NB: can be called before lateattach */ 910 1.31.2.7 skrll ic->ic_bss->ni_rates = ic->ic_sup_rates[mode]; 911 1.31.2.2 skrll 912 1.31.2.2 skrll ic->ic_curmode = mode; 913 1.31.2.7 skrll ieee80211_reset_erp(ic); /* reset ERP state */ 914 1.31.2.7 skrll ieee80211_wme_initparams(ic); /* reset WME stat */ 915 1.31.2.7 skrll 916 1.31.2.2 skrll return 0; 917 1.31.2.2 skrll #undef N 918 1.31.2.2 skrll } 919 1.31.2.2 skrll 920 1.31.2.2 skrll /* 921 1.31.2.2 skrll * Return the phy mode for with the specified channel so the 922 1.31.2.7 skrll * caller can select a rate set. This is problematic for channels 923 1.31.2.7 skrll * where multiple operating modes are possible (e.g. 11g+11b). 924 1.31.2.7 skrll * In those cases we defer to the current operating mode when set. 925 1.31.2.2 skrll */ 926 1.31.2.2 skrll enum ieee80211_phymode 927 1.31.2.2 skrll ieee80211_chan2mode(struct ieee80211com *ic, struct ieee80211_channel *chan) 928 1.31.2.2 skrll { 929 1.31.2.7 skrll if (IEEE80211_IS_CHAN_5GHZ(chan)) { 930 1.31.2.7 skrll /* 931 1.31.2.7 skrll * This assumes all 11a turbo channels are also 932 1.31.2.7 skrll * usable withut turbo, which is currently true. 933 1.31.2.7 skrll */ 934 1.31.2.7 skrll if (ic->ic_curmode == IEEE80211_MODE_TURBO_A) 935 1.31.2.7 skrll return IEEE80211_MODE_TURBO_A; 936 1.31.2.2 skrll return IEEE80211_MODE_11A; 937 1.31.2.7 skrll } else if (IEEE80211_IS_CHAN_FHSS(chan)) 938 1.31.2.2 skrll return IEEE80211_MODE_FH; 939 1.31.2.7 skrll else if (chan->ic_flags & (IEEE80211_CHAN_OFDM|IEEE80211_CHAN_DYN)) { 940 1.31.2.7 skrll /* 941 1.31.2.7 skrll * This assumes all 11g channels are also usable 942 1.31.2.7 skrll * for 11b, which is currently true. 943 1.31.2.7 skrll */ 944 1.31.2.7 skrll if (ic->ic_curmode == IEEE80211_MODE_TURBO_G) 945 1.31.2.7 skrll return IEEE80211_MODE_TURBO_G; 946 1.31.2.7 skrll if (ic->ic_curmode == IEEE80211_MODE_11B) 947 1.31.2.7 skrll return IEEE80211_MODE_11B; 948 1.31.2.2 skrll return IEEE80211_MODE_11G; 949 1.31.2.7 skrll } else 950 1.31.2.2 skrll return IEEE80211_MODE_11B; 951 1.31.2.2 skrll } 952 1.31.2.2 skrll 953 1.31.2.2 skrll /* 954 1.31.2.2 skrll * convert IEEE80211 rate value to ifmedia subtype. 955 1.31.2.2 skrll * ieee80211 rate is in unit of 0.5Mbps. 956 1.31.2.2 skrll */ 957 1.31.2.2 skrll int 958 1.31.2.2 skrll ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode mode) 959 1.31.2.2 skrll { 960 1.31.2.2 skrll #define N(a) (sizeof(a) / sizeof(a[0])) 961 1.31.2.2 skrll static const struct { 962 1.31.2.2 skrll u_int m; /* rate + mode */ 963 1.31.2.2 skrll u_int r; /* if_media rate */ 964 1.31.2.2 skrll } rates[] = { 965 1.31.2.2 skrll { 2 | IFM_IEEE80211_FH, IFM_IEEE80211_FH1 }, 966 1.31.2.2 skrll { 4 | IFM_IEEE80211_FH, IFM_IEEE80211_FH2 }, 967 1.31.2.2 skrll { 2 | IFM_IEEE80211_11B, IFM_IEEE80211_DS1 }, 968 1.31.2.2 skrll { 4 | IFM_IEEE80211_11B, IFM_IEEE80211_DS2 }, 969 1.31.2.2 skrll { 11 | IFM_IEEE80211_11B, IFM_IEEE80211_DS5 }, 970 1.31.2.2 skrll { 22 | IFM_IEEE80211_11B, IFM_IEEE80211_DS11 }, 971 1.31.2.2 skrll { 44 | IFM_IEEE80211_11B, IFM_IEEE80211_DS22 }, 972 1.31.2.2 skrll { 12 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM6 }, 973 1.31.2.2 skrll { 18 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM9 }, 974 1.31.2.2 skrll { 24 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM12 }, 975 1.31.2.2 skrll { 36 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM18 }, 976 1.31.2.2 skrll { 48 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM24 }, 977 1.31.2.2 skrll { 72 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM36 }, 978 1.31.2.2 skrll { 96 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM48 }, 979 1.31.2.2 skrll { 108 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM54 }, 980 1.31.2.2 skrll { 2 | IFM_IEEE80211_11G, IFM_IEEE80211_DS1 }, 981 1.31.2.2 skrll { 4 | IFM_IEEE80211_11G, IFM_IEEE80211_DS2 }, 982 1.31.2.2 skrll { 11 | IFM_IEEE80211_11G, IFM_IEEE80211_DS5 }, 983 1.31.2.2 skrll { 22 | IFM_IEEE80211_11G, IFM_IEEE80211_DS11 }, 984 1.31.2.2 skrll { 12 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM6 }, 985 1.31.2.2 skrll { 18 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM9 }, 986 1.31.2.2 skrll { 24 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM12 }, 987 1.31.2.2 skrll { 36 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM18 }, 988 1.31.2.2 skrll { 48 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM24 }, 989 1.31.2.2 skrll { 72 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM36 }, 990 1.31.2.2 skrll { 96 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM48 }, 991 1.31.2.2 skrll { 108 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM54 }, 992 1.31.2.2 skrll /* NB: OFDM72 doesn't realy exist so we don't handle it */ 993 1.31.2.2 skrll }; 994 1.31.2.2 skrll u_int mask, i; 995 1.31.2.2 skrll 996 1.31.2.2 skrll mask = rate & IEEE80211_RATE_VAL; 997 1.31.2.2 skrll switch (mode) { 998 1.31.2.2 skrll case IEEE80211_MODE_11A: 999 1.31.2.7 skrll case IEEE80211_MODE_TURBO_A: 1000 1.31.2.2 skrll mask |= IFM_IEEE80211_11A; 1001 1.31.2.2 skrll break; 1002 1.31.2.2 skrll case IEEE80211_MODE_11B: 1003 1.31.2.2 skrll mask |= IFM_IEEE80211_11B; 1004 1.31.2.2 skrll break; 1005 1.31.2.2 skrll case IEEE80211_MODE_FH: 1006 1.31.2.2 skrll mask |= IFM_IEEE80211_FH; 1007 1.31.2.2 skrll break; 1008 1.31.2.2 skrll case IEEE80211_MODE_AUTO: 1009 1.31.2.2 skrll /* NB: ic may be NULL for some drivers */ 1010 1.31.2.2 skrll if (ic && ic->ic_phytype == IEEE80211_T_FH) { 1011 1.31.2.2 skrll mask |= IFM_IEEE80211_FH; 1012 1.31.2.2 skrll break; 1013 1.31.2.2 skrll } 1014 1.31.2.2 skrll /* NB: hack, 11g matches both 11b+11a rates */ 1015 1.31.2.2 skrll /* fall thru... */ 1016 1.31.2.2 skrll case IEEE80211_MODE_11G: 1017 1.31.2.7 skrll case IEEE80211_MODE_TURBO_G: 1018 1.31.2.2 skrll mask |= IFM_IEEE80211_11G; 1019 1.31.2.2 skrll break; 1020 1.31.2.2 skrll } 1021 1.31.2.2 skrll for (i = 0; i < N(rates); i++) 1022 1.31.2.2 skrll if (rates[i].m == mask) 1023 1.31.2.2 skrll return rates[i].r; 1024 1.31.2.2 skrll return IFM_AUTO; 1025 1.31.2.2 skrll #undef N 1026 1.31.2.2 skrll } 1027 1.31.2.2 skrll 1028 1.31.2.2 skrll int 1029 1.31.2.2 skrll ieee80211_media2rate(int mword) 1030 1.31.2.2 skrll { 1031 1.31.2.2 skrll #define N(a) (sizeof(a) / sizeof(a[0])) 1032 1.31.2.2 skrll static const int ieeerates[] = { 1033 1.31.2.2 skrll -1, /* IFM_AUTO */ 1034 1.31.2.2 skrll 0, /* IFM_MANUAL */ 1035 1.31.2.2 skrll 0, /* IFM_NONE */ 1036 1.31.2.2 skrll 2, /* IFM_IEEE80211_FH1 */ 1037 1.31.2.2 skrll 4, /* IFM_IEEE80211_FH2 */ 1038 1.31.2.7 skrll 2, /* IFM_IEEE80211_DS1 */ 1039 1.31.2.2 skrll 4, /* IFM_IEEE80211_DS2 */ 1040 1.31.2.2 skrll 11, /* IFM_IEEE80211_DS5 */ 1041 1.31.2.2 skrll 22, /* IFM_IEEE80211_DS11 */ 1042 1.31.2.2 skrll 44, /* IFM_IEEE80211_DS22 */ 1043 1.31.2.2 skrll 12, /* IFM_IEEE80211_OFDM6 */ 1044 1.31.2.2 skrll 18, /* IFM_IEEE80211_OFDM9 */ 1045 1.31.2.2 skrll 24, /* IFM_IEEE80211_OFDM12 */ 1046 1.31.2.2 skrll 36, /* IFM_IEEE80211_OFDM18 */ 1047 1.31.2.2 skrll 48, /* IFM_IEEE80211_OFDM24 */ 1048 1.31.2.2 skrll 72, /* IFM_IEEE80211_OFDM36 */ 1049 1.31.2.2 skrll 96, /* IFM_IEEE80211_OFDM48 */ 1050 1.31.2.2 skrll 108, /* IFM_IEEE80211_OFDM54 */ 1051 1.31.2.2 skrll 144, /* IFM_IEEE80211_OFDM72 */ 1052 1.31.2.2 skrll }; 1053 1.31.2.2 skrll return IFM_SUBTYPE(mword) < N(ieeerates) ? 1054 1.31.2.2 skrll ieeerates[IFM_SUBTYPE(mword)] : 0; 1055 1.31.2.2 skrll #undef N 1056 1.31.2.2 skrll } 1057
Indexes created Thu Oct 02 14:10:14 GMT 2025