1 /* 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * Alternatively, this software may be distributed under the terms of the 18 * GNU General Public License ("GPL") version 2 as published by the Free 19 * Software Foundation. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: src/sys/net80211/ieee80211_ioctl.c,v 1.25.2.15 2006/09/02 17:09:26 sam Exp $ 33 * $DragonFly: src/sys/netproto/802_11/wlan/ieee80211_ioctl.c,v 1.11 2007/10/13 08:02:05 sephe Exp $ 34 */ 35 36 /* 37 * IEEE 802.11 ioctl support (DragonFlyBSD-specific) 38 */ 39 40 #include "opt_inet.h" 41 #include "opt_ipx.h" 42 43 #include <sys/endian.h> 44 #include <sys/param.h> 45 #include <sys/kernel.h> 46 #include <sys/proc.h> 47 #include <sys/socket.h> 48 #include <sys/sockio.h> 49 #include <sys/systm.h> 50 51 #include <net/if.h> 52 #include <net/if_arp.h> 53 #include <net/if_dl.h> 54 #include <net/if_media.h> 55 #include <net/ethernet.h> 56 57 #ifdef INET 58 #include <netinet/in.h> 59 #include <netinet/if_ether.h> 60 #endif 61 62 #ifdef IPX 63 #include <netproto/ipx/ipx.h> 64 #include <netproto/ipx/ipx_if.h> 65 #endif 66 67 #include <netproto/802_11/ieee80211_var.h> 68 #include <netproto/802_11/ieee80211_ioctl.h> 69 70 #include <netproto/802_11/if_wavelan_ieee.h> 71 72 #define IS_UP(_ic) \ 73 (((_ic)->ic_ifp->if_flags & (IFF_UP | IFF_RUNNING)) == \ 74 (IFF_UP | IFF_RUNNING)) 75 76 #define IS_UP_AUTO(_ic) \ 77 (IS_UP(_ic) && (_ic)->ic_roaming == IEEE80211_ROAMING_AUTO) 78 79 /* 80 * XXX 81 * Wireless LAN specific configuration interface, which is compatible 82 * with wicontrol(8). 83 */ 84 85 struct wi_read_ap_args { 86 int i; /* result count */ 87 struct wi_apinfo *ap; /* current entry in result buffer */ 88 caddr_t max; /* result buffer bound */ 89 }; 90 91 static void 92 wi_read_ap_result(void *arg, struct ieee80211_node *ni) 93 { 94 struct ieee80211com *ic = ni->ni_ic; 95 struct wi_read_ap_args *sa = arg; 96 struct wi_apinfo *ap = sa->ap; 97 struct ieee80211_rateset *rs; 98 int j; 99 100 if ((caddr_t)(ap + 1) > sa->max) 101 return; 102 memset(ap, 0, sizeof(struct wi_apinfo)); 103 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 104 IEEE80211_ADDR_COPY(ap->bssid, ni->ni_macaddr); 105 ap->namelen = ic->ic_des_esslen; 106 if (ic->ic_des_esslen) 107 memcpy(ap->name, ic->ic_des_essid, 108 ic->ic_des_esslen); 109 } else { 110 IEEE80211_ADDR_COPY(ap->bssid, ni->ni_bssid); 111 ap->namelen = ni->ni_esslen; 112 if (ni->ni_esslen) 113 memcpy(ap->name, ni->ni_essid, 114 ni->ni_esslen); 115 } 116 ap->channel = ieee80211_chan2ieee(ic, ni->ni_chan); 117 ap->signal = ic->ic_node_getrssi(ni); 118 ap->capinfo = ni->ni_capinfo; 119 ap->interval = ni->ni_intval; 120 rs = &ni->ni_rates; 121 for (j = 0; j < rs->rs_nrates; j++) { 122 if (rs->rs_rates[j] & IEEE80211_RATE_BASIC) { 123 ap->rate = (rs->rs_rates[j] & 124 IEEE80211_RATE_VAL) * 5; /* XXX */ 125 } 126 } 127 sa->i++; 128 sa->ap++; 129 } 130 131 struct wi_read_prism2_args { 132 int i; /* result count */ 133 struct wi_scan_res *res;/* current entry in result buffer */ 134 caddr_t max; /* result buffer bound */ 135 }; 136 137 static void 138 wi_read_prism2_result(void *arg, struct ieee80211_node *ni) 139 { 140 struct ieee80211com *ic = ni->ni_ic; 141 struct wi_read_prism2_args *sa = arg; 142 struct wi_scan_res *res = sa->res; 143 144 if ((caddr_t)(res + 1) > sa->max) 145 return; 146 res->wi_chan = ieee80211_chan2ieee(ic, ni->ni_chan); 147 res->wi_noise = 0; 148 res->wi_signal = ic->ic_node_getrssi(ni); 149 IEEE80211_ADDR_COPY(res->wi_bssid, ni->ni_bssid); 150 res->wi_interval = ni->ni_intval; 151 res->wi_capinfo = ni->ni_capinfo; 152 res->wi_ssid_len = ni->ni_esslen; 153 memcpy(res->wi_ssid, ni->ni_essid, IEEE80211_NWID_LEN); 154 /* NB: assumes wi_srates holds <= ni->ni_rates */ 155 memcpy(res->wi_srates, ni->ni_rates.rs_rates, 156 sizeof(res->wi_srates)); 157 if (ni->ni_rates.rs_nrates < 10) 158 res->wi_srates[ni->ni_rates.rs_nrates] = 0; 159 res->wi_rate = ni->ni_rates.rs_rates[ni->ni_txrate]; 160 res->wi_rsvd = 0; 161 162 sa->i++; 163 sa->res++; 164 } 165 166 struct wi_read_sigcache_args { 167 int i; /* result count */ 168 struct wi_sigcache *wsc;/* current entry in result buffer */ 169 caddr_t max; /* result buffer bound */ 170 }; 171 172 static void 173 wi_read_sigcache(void *arg, struct ieee80211_node *ni) 174 { 175 struct ieee80211com *ic = ni->ni_ic; 176 struct wi_read_sigcache_args *sa = arg; 177 struct wi_sigcache *wsc = sa->wsc; 178 179 if ((caddr_t)(wsc + 1) > sa->max) 180 return; 181 memset(wsc, 0, sizeof(struct wi_sigcache)); 182 IEEE80211_ADDR_COPY(wsc->macsrc, ni->ni_macaddr); 183 wsc->signal = ic->ic_node_getrssi(ni); 184 185 sa->wsc++; 186 sa->i++; 187 } 188 189 int 190 ieee80211_cfgget(struct ieee80211com *ic, u_long cmd, caddr_t data, 191 struct ucred *cr) 192 { 193 struct ifnet *ifp = ic->ic_ifp; 194 int i, j, error; 195 struct ifreq *ifr = (struct ifreq *)data; 196 struct wi_req wreq; 197 struct wi_ltv_keys *keys; 198 199 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 200 if (error) 201 return error; 202 wreq.wi_len = 0; 203 switch (wreq.wi_type) { 204 case WI_RID_SERIALNO: 205 /* nothing appropriate */ 206 break; 207 case WI_RID_NODENAME: 208 strcpy((char *)&wreq.wi_val[1], hostname); 209 wreq.wi_val[0] = htole16(strlen(hostname)); 210 wreq.wi_len = (1 + strlen(hostname) + 1) / 2; 211 break; 212 case WI_RID_CURRENT_SSID: 213 if (ic->ic_state != IEEE80211_S_RUN) { 214 wreq.wi_val[0] = 0; 215 wreq.wi_len = 1; 216 break; 217 } 218 wreq.wi_val[0] = htole16(ic->ic_bss->ni_esslen); 219 memcpy(&wreq.wi_val[1], ic->ic_bss->ni_essid, 220 ic->ic_bss->ni_esslen); 221 wreq.wi_len = (1 + ic->ic_bss->ni_esslen + 1) / 2; 222 break; 223 case WI_RID_OWN_SSID: 224 case WI_RID_DESIRED_SSID: 225 wreq.wi_val[0] = htole16(ic->ic_des_esslen); 226 memcpy(&wreq.wi_val[1], ic->ic_des_essid, ic->ic_des_esslen); 227 wreq.wi_len = (1 + ic->ic_des_esslen + 1) / 2; 228 break; 229 case WI_RID_CURRENT_BSSID: 230 if (ic->ic_state == IEEE80211_S_RUN) 231 IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_bss->ni_bssid); 232 else 233 memset(wreq.wi_val, 0, IEEE80211_ADDR_LEN); 234 wreq.wi_len = IEEE80211_ADDR_LEN / 2; 235 break; 236 case WI_RID_CHANNEL_LIST: 237 memset(wreq.wi_val, 0, sizeof(wreq.wi_val)); 238 /* 239 * Since channel 0 is not available for DS, channel 1 240 * is assigned to LSB on WaveLAN. 241 */ 242 if (ic->ic_phytype == IEEE80211_T_DS) 243 i = 1; 244 else 245 i = 0; 246 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) 247 if (isset(ic->ic_chan_active, i)) { 248 setbit((uint8_t *)wreq.wi_val, j); 249 wreq.wi_len = j / 16 + 1; 250 } 251 break; 252 case WI_RID_OWN_CHNL: 253 wreq.wi_val[0] = htole16( 254 ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 255 wreq.wi_len = 1; 256 break; 257 case WI_RID_CURRENT_CHAN: 258 wreq.wi_val[0] = htole16( 259 ieee80211_chan2ieee(ic, ic->ic_curchan)); 260 wreq.wi_len = 1; 261 break; 262 case WI_RID_COMMS_QUALITY: 263 wreq.wi_val[0] = 0; /* quality */ 264 wreq.wi_val[1] = htole16(ic->ic_node_getrssi(ic->ic_bss)); 265 wreq.wi_val[2] = 0; /* noise */ 266 wreq.wi_len = 3; 267 break; 268 case WI_RID_PROMISC: 269 wreq.wi_val[0] = htole16((ifp->if_flags & IFF_PROMISC) ? 1 : 0); 270 wreq.wi_len = 1; 271 break; 272 case WI_RID_PORTTYPE: 273 wreq.wi_val[0] = htole16(ic->ic_opmode); 274 wreq.wi_len = 1; 275 break; 276 case WI_RID_MAC_NODE: 277 IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_myaddr); 278 wreq.wi_len = IEEE80211_ADDR_LEN / 2; 279 break; 280 case WI_RID_TX_RATE: 281 if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 282 wreq.wi_val[0] = 0; /* auto */ 283 else 284 wreq.wi_val[0] = htole16( 285 (ic->ic_sup_rates[ic->ic_curmode].rs_rates[ic->ic_fixed_rate] & 286 IEEE80211_RATE_VAL) / 2); 287 wreq.wi_len = 1; 288 break; 289 case WI_RID_CUR_TX_RATE: 290 wreq.wi_val[0] = htole16( 291 (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & 292 IEEE80211_RATE_VAL) / 2); 293 wreq.wi_len = 1; 294 break; 295 case WI_RID_RTS_THRESH: 296 wreq.wi_val[0] = htole16(ic->ic_rtsthreshold); 297 wreq.wi_len = 1; 298 break; 299 case WI_RID_CREATE_IBSS: 300 wreq.wi_val[0] = 301 htole16((ic->ic_flags & IEEE80211_F_IBSSON) ? 1 : 0); 302 wreq.wi_len = 1; 303 break; 304 case WI_RID_MICROWAVE_OVEN: 305 wreq.wi_val[0] = 0; /* no ... not supported */ 306 wreq.wi_len = 1; 307 break; 308 case WI_RID_ROAMING_MODE: 309 wreq.wi_val[0] = htole16(ic->ic_roaming); /* XXX map */ 310 wreq.wi_len = 1; 311 break; 312 case WI_RID_SYSTEM_SCALE: 313 wreq.wi_val[0] = htole16(1); /* low density ... not supp */ 314 wreq.wi_len = 1; 315 break; 316 case WI_RID_PM_ENABLED: 317 wreq.wi_val[0] = 318 htole16((ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0); 319 wreq.wi_len = 1; 320 break; 321 case WI_RID_MAX_SLEEP: 322 wreq.wi_val[0] = htole16(ic->ic_lintval); 323 wreq.wi_len = 1; 324 break; 325 case WI_RID_CUR_BEACON_INT: 326 wreq.wi_val[0] = htole16(ic->ic_bss->ni_intval); 327 wreq.wi_len = 1; 328 break; 329 case WI_RID_WEP_AVAIL: 330 wreq.wi_val[0] = htole16(1); /* always available */ 331 wreq.wi_len = 1; 332 break; 333 case WI_RID_CNFAUTHMODE: 334 wreq.wi_val[0] = htole16(1); /* TODO: open system only */ 335 wreq.wi_len = 1; 336 break; 337 case WI_RID_ENCRYPTION: 338 wreq.wi_val[0] = 339 htole16((ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0); 340 wreq.wi_len = 1; 341 break; 342 case WI_RID_TX_CRYPT_KEY: 343 wreq.wi_val[0] = htole16(ic->ic_def_txkey); 344 wreq.wi_len = 1; 345 break; 346 case WI_RID_DEFLT_CRYPT_KEYS: 347 keys = (struct wi_ltv_keys *)&wreq; 348 /* do not show keys to non-root user */ 349 error = suser_cred(cr, NULL_CRED_OKAY); 350 if (error) { 351 memset(keys, 0, sizeof(*keys)); 352 error = 0; 353 break; 354 } 355 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 356 keys->wi_keys[i].wi_keylen = 357 htole16(ic->ic_nw_keys[i].wk_keylen); 358 memcpy(keys->wi_keys[i].wi_keydat, 359 ic->ic_nw_keys[i].wk_key, 360 ic->ic_nw_keys[i].wk_keylen); 361 } 362 wreq.wi_len = sizeof(*keys) / 2; 363 break; 364 case WI_RID_MAX_DATALEN: 365 wreq.wi_val[0] = htole16(ic->ic_fragthreshold); 366 wreq.wi_len = 1; 367 break; 368 case WI_RID_IFACE_STATS: 369 /* XXX: should be implemented in lower drivers */ 370 break; 371 case WI_RID_READ_APS: 372 /* 373 * Don't return results until active scan completes. 374 */ 375 if ((ic->ic_flags & (IEEE80211_F_SCAN|IEEE80211_F_ASCAN)) == 0) { 376 struct wi_read_ap_args args; 377 378 args.i = 0; 379 args.ap = (void *)((char *)wreq.wi_val + sizeof(i)); 380 args.max = (void *)(&wreq + 1); 381 ieee80211_iterate_nodes(&ic->ic_scan, 382 wi_read_ap_result, &args); 383 memcpy(wreq.wi_val, &args.i, sizeof(args.i)); 384 wreq.wi_len = (sizeof(int) + 385 sizeof(struct wi_apinfo) * args.i) / 2; 386 } else 387 error = EINPROGRESS; 388 break; 389 case WI_RID_PRISM2: 390 /* NB: we lie so WI_RID_SCAN_RES can include rates */ 391 wreq.wi_val[0] = 1; 392 wreq.wi_len = sizeof(uint16_t) / 2; 393 break; 394 case WI_RID_SCAN_RES: /* compatibility interface */ 395 if ((ic->ic_flags & (IEEE80211_F_SCAN|IEEE80211_F_ASCAN)) == 0) { 396 struct wi_read_prism2_args args; 397 struct wi_scan_p2_hdr *p2; 398 399 /* NB: use Prism2 format so we can include rate info */ 400 p2 = (struct wi_scan_p2_hdr *)wreq.wi_val; 401 args.i = 0; 402 args.res = (void *)&p2[1]; 403 args.max = (void *)(&wreq + 1); 404 ieee80211_iterate_nodes(&ic->ic_scan, 405 wi_read_prism2_result, &args); 406 p2->wi_rsvd = 0; 407 p2->wi_reason = args.i; 408 wreq.wi_len = (sizeof(*p2) + 409 sizeof(struct wi_scan_res) * args.i) / 2; 410 } else 411 error = EINPROGRESS; 412 break; 413 case WI_RID_READ_CACHE: { 414 struct wi_read_sigcache_args args; 415 args.i = 0; 416 args.wsc = (struct wi_sigcache *) wreq.wi_val; 417 args.max = (void *)(&wreq + 1); 418 ieee80211_iterate_nodes(&ic->ic_scan, wi_read_sigcache, &args); 419 wreq.wi_len = sizeof(struct wi_sigcache) * args.i / 2; 420 break; 421 } 422 default: 423 error = EINVAL; 424 break; 425 } 426 if (error == 0) { 427 wreq.wi_len++; 428 error = copyout(&wreq, ifr->ifr_data, sizeof(wreq)); 429 } 430 return error; 431 } 432 433 static int 434 findrate(struct ieee80211com *ic, enum ieee80211_phymode mode, int rate) 435 { 436 #define IEEERATE(_ic,_m,_i) \ 437 ((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL) 438 int i, nrates = ic->ic_sup_rates[mode].rs_nrates; 439 for (i = 0; i < nrates; i++) 440 if (IEEERATE(ic, mode, i) == rate) 441 return i; 442 return -1; 443 #undef IEEERATE 444 } 445 446 /* 447 * Prepare to do a user-initiated scan for AP's. If no 448 * current/default channel is setup or the current channel 449 * is invalid then pick the first available channel from 450 * the active list as the place to start the scan. 451 */ 452 static int 453 ieee80211_setupscan(struct ieee80211com *ic, const uint8_t chanlist[]) 454 { 455 456 /* 457 * XXX don't permit a scan to be started unless we 458 * know the device is ready. For the moment this means 459 * the device is marked up as this is the required to 460 * initialize the hardware. It would be better to permit 461 * scanning prior to being up but that'll require some 462 * changes to the infrastructure. 463 */ 464 if (!IS_UP(ic)) 465 return EINVAL; 466 memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active)); 467 /* 468 * We force the state to INIT before calling ieee80211_new_state 469 * to get ieee80211_begin_scan called. We really want to scan w/o 470 * altering the current state but that's not possible right now. 471 */ 472 /* XXX handle proberequest case */ 473 ic->ic_state = IEEE80211_S_INIT; /* XXX bypass state machine */ 474 return 0; 475 } 476 477 int 478 ieee80211_cfgset(struct ieee80211com *ic, u_long cmd, caddr_t data) 479 { 480 struct ifnet *ifp = ic->ic_ifp; 481 int i, j, len, error, rate; 482 struct ifreq *ifr = (struct ifreq *)data; 483 struct wi_ltv_keys *keys; 484 struct wi_req wreq; 485 u_char chanlist[roundup(IEEE80211_CHAN_MAX, NBBY)]; 486 487 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq)); 488 if (error) 489 return error; 490 len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0; 491 switch (wreq.wi_type) { 492 case WI_RID_SERIALNO: 493 case WI_RID_NODENAME: 494 return EPERM; 495 case WI_RID_CURRENT_SSID: 496 return EPERM; 497 case WI_RID_OWN_SSID: 498 case WI_RID_DESIRED_SSID: 499 if (le16toh(wreq.wi_val[0]) * 2 > len || 500 le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) { 501 error = ENOSPC; 502 break; 503 } 504 memset(ic->ic_des_essid, 0, sizeof(ic->ic_des_essid)); 505 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2; 506 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen); 507 error = ENETRESET; 508 break; 509 case WI_RID_CURRENT_BSSID: 510 return EPERM; 511 case WI_RID_OWN_CHNL: 512 if (len != 2) 513 return EINVAL; 514 i = le16toh(wreq.wi_val[0]); 515 if (i < 0 || 516 i > IEEE80211_CHAN_MAX || 517 isclr(ic->ic_chan_active, i)) 518 return EINVAL; 519 ic->ic_ibss_chan = &ic->ic_channels[i]; 520 if (ic->ic_opmode == IEEE80211_M_MONITOR) 521 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 522 else 523 error = ENETRESET; 524 break; 525 case WI_RID_CURRENT_CHAN: 526 return EPERM; 527 case WI_RID_COMMS_QUALITY: 528 return EPERM; 529 case WI_RID_PROMISC: 530 if (len != 2) 531 return EINVAL; 532 if (ifp->if_flags & IFF_PROMISC) { 533 if (wreq.wi_val[0] == 0) { 534 ifp->if_flags &= ~IFF_PROMISC; 535 error = ENETRESET; 536 } 537 } else { 538 if (wreq.wi_val[0] != 0) { 539 ifp->if_flags |= IFF_PROMISC; 540 error = ENETRESET; 541 } 542 } 543 break; 544 case WI_RID_PORTTYPE: 545 if (len != 2) 546 return EINVAL; 547 switch (le16toh(wreq.wi_val[0])) { 548 case IEEE80211_M_STA: 549 break; 550 case IEEE80211_M_IBSS: 551 if (!(ic->ic_caps & IEEE80211_C_IBSS)) 552 return EINVAL; 553 break; 554 case IEEE80211_M_AHDEMO: 555 if (ic->ic_phytype != IEEE80211_T_DS || 556 !(ic->ic_caps & IEEE80211_C_AHDEMO)) 557 return EINVAL; 558 break; 559 case IEEE80211_M_HOSTAP: 560 if (!(ic->ic_caps & IEEE80211_C_HOSTAP)) 561 return EINVAL; 562 break; 563 default: 564 return EINVAL; 565 } 566 if (le16toh(wreq.wi_val[0]) != ic->ic_opmode) { 567 ic->ic_opmode = le16toh(wreq.wi_val[0]); 568 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 569 } 570 break; 571 #if 0 572 case WI_RID_MAC_NODE: 573 if (len != IEEE80211_ADDR_LEN) 574 return EINVAL; 575 IEEE80211_ADDR_COPY(LLADDR(ifp->if_sadl), wreq.wi_val); 576 /* if_init will copy lladdr into ic_myaddr */ 577 error = ENETRESET; 578 break; 579 #endif 580 case WI_RID_TX_RATE: 581 if (len != 2) 582 return EINVAL; 583 if (wreq.wi_val[0] == 0) { 584 /* auto */ 585 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE; 586 break; 587 } 588 rate = 2 * le16toh(wreq.wi_val[0]); 589 if (ic->ic_curmode == IEEE80211_MODE_AUTO) { 590 /* 591 * In autoselect mode search for the rate. We take 592 * the first instance which may not be right, but we 593 * are limited by the interface. Note that we also 594 * lock the mode to insure the rate is meaningful 595 * when it is used. 596 */ 597 for (j = IEEE80211_MODE_11A; 598 j < IEEE80211_MODE_MAX; j++) { 599 if ((ic->ic_modecaps & (1<<j)) == 0) 600 continue; 601 i = findrate(ic, j, rate); 602 if (i != -1) { 603 /* lock mode too */ 604 ic->ic_curmode = j; 605 goto setrate; 606 } 607 } 608 } else { 609 i = findrate(ic, ic->ic_curmode, rate); 610 if (i != -1) 611 goto setrate; 612 } 613 return EINVAL; 614 setrate: 615 ic->ic_fixed_rate = i; 616 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 617 break; 618 case WI_RID_CUR_TX_RATE: 619 return EPERM; 620 case WI_RID_RTS_THRESH: 621 if (len != 2) 622 return EINVAL; 623 if (le16toh(wreq.wi_val[0]) != IEEE80211_MAX_LEN) 624 return EINVAL; /* TODO: RTS */ 625 break; 626 case WI_RID_CREATE_IBSS: 627 if (len != 2) 628 return EINVAL; 629 if (wreq.wi_val[0] != 0) { 630 if ((ic->ic_caps & IEEE80211_C_IBSS) == 0) 631 return EINVAL; 632 if ((ic->ic_flags & IEEE80211_F_IBSSON) == 0) { 633 ic->ic_flags |= IEEE80211_F_IBSSON; 634 if (ic->ic_opmode == IEEE80211_M_IBSS && 635 ic->ic_state == IEEE80211_S_SCAN) 636 error = IS_UP_AUTO(ic) ? ENETRESET : 0; 637 } 638 } else { 639 if (ic->ic_flags & IEEE80211_F_IBSSON) { 640 ic->ic_flags &= ~IEEE80211_F_IBSSON; 641 if (ic->ic_flags & IEEE80211_F_SIBSS) { 642 ic->ic_flags &= ~IEEE80211_F_SIBSS; 643 error = IS_UP_AUTO(ic) ? ENETRESET : 0; 644 } 645 } 646 } 647 break; 648 case WI_RID_MICROWAVE_OVEN: 649 if (len != 2) 650 return EINVAL; 651 if (wreq.wi_val[0] != 0) 652 return EINVAL; /* not supported */ 653 break; 654 case WI_RID_ROAMING_MODE: 655 if (len != 2) 656 return EINVAL; 657 i = le16toh(wreq.wi_val[0]); 658 if (i > IEEE80211_ROAMING_MANUAL) 659 return EINVAL; /* not supported */ 660 ic->ic_roaming = i; 661 break; 662 case WI_RID_SYSTEM_SCALE: 663 if (len != 2) 664 return EINVAL; 665 if (le16toh(wreq.wi_val[0]) != 1) 666 return EINVAL; /* not supported */ 667 break; 668 case WI_RID_PM_ENABLED: 669 if (len != 2) 670 return EINVAL; 671 if (wreq.wi_val[0] != 0) { 672 if ((ic->ic_caps & IEEE80211_C_PMGT) == 0) 673 return EINVAL; 674 if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) { 675 ic->ic_flags |= IEEE80211_F_PMGTON; 676 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 677 } 678 } else { 679 if (ic->ic_flags & IEEE80211_F_PMGTON) { 680 ic->ic_flags &= ~IEEE80211_F_PMGTON; 681 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 682 } 683 } 684 break; 685 case WI_RID_MAX_SLEEP: 686 if (len != 2) 687 return EINVAL; 688 ic->ic_lintval = le16toh(wreq.wi_val[0]); 689 if (ic->ic_flags & IEEE80211_F_PMGTON) 690 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 691 break; 692 case WI_RID_CUR_BEACON_INT: 693 return EPERM; 694 case WI_RID_WEP_AVAIL: 695 return EPERM; 696 case WI_RID_CNFAUTHMODE: 697 if (len != 2) 698 return EINVAL; 699 i = le16toh(wreq.wi_val[0]); 700 if (i > IEEE80211_AUTH_WPA) 701 return EINVAL; 702 ic->ic_bss->ni_authmode = i; /* XXX ENETRESET? */ 703 error = ENETRESET; 704 break; 705 case WI_RID_ENCRYPTION: 706 if (len != 2) 707 return EINVAL; 708 if (wreq.wi_val[0] != 0) { 709 if ((ic->ic_caps & IEEE80211_C_WEP) == 0) 710 return EINVAL; 711 if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0) { 712 ic->ic_flags |= IEEE80211_F_PRIVACY; 713 error = ENETRESET; 714 } 715 } else { 716 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 717 ic->ic_flags &= ~IEEE80211_F_PRIVACY; 718 error = ENETRESET; 719 } 720 } 721 break; 722 case WI_RID_TX_CRYPT_KEY: 723 if (len != 2) 724 return EINVAL; 725 i = le16toh(wreq.wi_val[0]); 726 if (i >= IEEE80211_WEP_NKID) 727 return EINVAL; 728 ic->ic_def_txkey = i; 729 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 730 break; 731 case WI_RID_DEFLT_CRYPT_KEYS: 732 if (len != sizeof(struct wi_ltv_keys)) 733 return EINVAL; 734 keys = (struct wi_ltv_keys *)&wreq; 735 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 736 len = le16toh(keys->wi_keys[i].wi_keylen); 737 if (len != 0 && len < IEEE80211_WEP_KEYLEN) 738 return EINVAL; 739 if (len > IEEE80211_KEYBUF_SIZE) 740 return EINVAL; 741 } 742 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 743 struct ieee80211_key *k = &ic->ic_nw_keys[i]; 744 745 len = le16toh(keys->wi_keys[i].wi_keylen); 746 k->wk_keylen = len; 747 k->wk_flags = IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV; 748 memset(k->wk_key, 0, sizeof(k->wk_key)); 749 memcpy(k->wk_key, keys->wi_keys[i].wi_keydat, len); 750 #if 0 751 k->wk_type = IEEE80211_CIPHER_WEP; 752 #endif 753 } 754 error = ENETRESET; 755 break; 756 case WI_RID_MAX_DATALEN: 757 if (len != 2) 758 return EINVAL; 759 len = le16toh(wreq.wi_val[0]); 760 if (len < 350 /* ? */ || len > IEEE80211_MAX_LEN) 761 return EINVAL; 762 ic->ic_fragthreshold = len; 763 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 764 break; 765 case WI_RID_IFACE_STATS: 766 error = EPERM; 767 break; 768 case WI_RID_SCAN_REQ: /* XXX wicontrol */ 769 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 770 break; 771 error = ieee80211_setupscan(ic, ic->ic_chan_avail); 772 if (error == 0) 773 error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 774 break; 775 case WI_RID_SCAN_APS: 776 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 777 break; 778 len--; /* XXX: tx rate? */ 779 /* FALLTHRU */ 780 case WI_RID_CHANNEL_LIST: 781 memset(chanlist, 0, sizeof(chanlist)); 782 /* 783 * Since channel 0 is not available for DS, channel 1 784 * is assigned to LSB on WaveLAN. 785 */ 786 if (ic->ic_phytype == IEEE80211_T_DS) 787 i = 1; 788 else 789 i = 0; 790 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) { 791 if ((j / 8) >= len) 792 break; 793 if (isclr((uint8_t *)wreq.wi_val, j)) 794 continue; 795 if (isclr(ic->ic_chan_active, i)) { 796 if (wreq.wi_type != WI_RID_CHANNEL_LIST) 797 continue; 798 if (isclr(ic->ic_chan_avail, i)) 799 return EPERM; 800 } 801 setbit(chanlist, i); 802 } 803 error = ieee80211_setupscan(ic, chanlist); 804 if (wreq.wi_type == WI_RID_CHANNEL_LIST) { 805 /* NB: ignore error from ieee80211_setupscan */ 806 error = ENETRESET; 807 } else if (error == 0) 808 error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 809 break; 810 default: 811 error = EINVAL; 812 break; 813 } 814 if (error == ENETRESET && !IS_UP_AUTO(ic)) 815 error = 0; 816 return error; 817 } 818 819 static int 820 cap2cipher(int flag) 821 { 822 switch (flag) { 823 case IEEE80211_C_WEP: return IEEE80211_CIPHER_WEP; 824 case IEEE80211_C_AES: return IEEE80211_CIPHER_AES_OCB; 825 case IEEE80211_C_AES_CCM: return IEEE80211_CIPHER_AES_CCM; 826 case IEEE80211_C_CKIP: return IEEE80211_CIPHER_CKIP; 827 case IEEE80211_C_TKIP: return IEEE80211_CIPHER_TKIP; 828 } 829 return -1; 830 } 831 832 static int 833 ieee80211_ioctl_getkey(struct ieee80211com *ic, struct ieee80211req *ireq, 834 struct ucred *cr) 835 { 836 struct ieee80211_node *ni; 837 struct ieee80211req_key ik; 838 struct ieee80211_key *wk; 839 const struct ieee80211_cipher *cip; 840 u_int kid; 841 int error; 842 843 if (ireq->i_len != sizeof(ik)) 844 return EINVAL; 845 error = copyin(ireq->i_data, &ik, sizeof(ik)); 846 if (error) 847 return error; 848 kid = ik.ik_keyix; 849 if (kid == IEEE80211_KEYIX_NONE) { 850 ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr); 851 if (ni == NULL) 852 return EINVAL; /* XXX */ 853 wk = &ni->ni_ucastkey; 854 } else { 855 if (kid >= IEEE80211_WEP_NKID) 856 return EINVAL; 857 wk = &ic->ic_nw_keys[kid]; 858 IEEE80211_ADDR_COPY(&ik.ik_macaddr, ic->ic_bss->ni_macaddr); 859 ni = NULL; 860 } 861 cip = wk->wk_cipher; 862 ik.ik_type = cip->ic_cipher; 863 ik.ik_keylen = wk->wk_keylen; 864 ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV); 865 if (wk->wk_keyix == ic->ic_def_txkey) 866 ik.ik_flags |= IEEE80211_KEY_DEFAULT; 867 if (suser_cred(cr, NULL_CRED_OKAY) == 0) { 868 /* NB: only root can read key data */ 869 ik.ik_keyrsc = wk->wk_keyrsc; 870 ik.ik_keytsc = wk->wk_keytsc; 871 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen); 872 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) { 873 memcpy(ik.ik_keydata+wk->wk_keylen, 874 wk->wk_key + IEEE80211_KEYBUF_SIZE, 875 IEEE80211_MICBUF_SIZE); 876 ik.ik_keylen += IEEE80211_MICBUF_SIZE; 877 } 878 } else { 879 ik.ik_keyrsc = 0; 880 ik.ik_keytsc = 0; 881 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata)); 882 } 883 if (ni != NULL) 884 ieee80211_free_node(ni); 885 return copyout(&ik, ireq->i_data, sizeof(ik)); 886 } 887 888 static int 889 ieee80211_ioctl_getchanlist(struct ieee80211com *ic, struct ieee80211req *ireq) 890 { 891 892 if (sizeof(ic->ic_chan_active) < ireq->i_len) 893 ireq->i_len = sizeof(ic->ic_chan_active); 894 return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len); 895 } 896 897 static int 898 ieee80211_ioctl_getchaninfo(struct ieee80211com *ic, struct ieee80211req *ireq) 899 { 900 struct ieee80211req_chaninfo chans; /* XXX off stack? */ 901 int i, space; 902 903 /* 904 * Since channel 0 is not available for DS, channel 1 905 * is assigned to LSB on WaveLAN. 906 */ 907 if (ic->ic_phytype == IEEE80211_T_DS) 908 i = 1; 909 else 910 i = 0; 911 memset(&chans, 0, sizeof(chans)); 912 for (; i <= IEEE80211_CHAN_MAX; i++) 913 if (isset(ic->ic_chan_avail, i)) { 914 struct ieee80211_channel *c = &ic->ic_channels[i]; 915 chans.ic_chans[chans.ic_nchans].ic_freq = c->ic_freq; 916 chans.ic_chans[chans.ic_nchans].ic_flags = c->ic_flags; 917 chans.ic_nchans++; 918 } 919 space = __offsetof(struct ieee80211req_chaninfo, 920 ic_chans[chans.ic_nchans]); 921 if (space > ireq->i_len) 922 space = ireq->i_len; 923 return copyout(&chans, ireq->i_data, space); 924 } 925 926 static int 927 ieee80211_ioctl_getwpaie(struct ieee80211com *ic, struct ieee80211req *ireq) 928 { 929 struct ieee80211_node *ni; 930 struct ieee80211req_wpaie wpaie; 931 int error; 932 933 if (ireq->i_len < IEEE80211_ADDR_LEN) 934 return EINVAL; 935 error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN); 936 if (error != 0) 937 return error; 938 ni = ieee80211_find_node(&ic->ic_sta, wpaie.wpa_macaddr); 939 if (ni == NULL) 940 return EINVAL; /* XXX */ 941 memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie)); 942 if (ni->ni_wpa_ie != NULL) { 943 int ielen = ni->ni_wpa_ie[1] + 2; 944 if (ielen > sizeof(wpaie.wpa_ie)) 945 ielen = sizeof(wpaie.wpa_ie); 946 memcpy(wpaie.wpa_ie, ni->ni_wpa_ie, ielen); 947 } 948 ieee80211_free_node(ni); 949 if (ireq->i_len > sizeof(wpaie)) 950 ireq->i_len = sizeof(wpaie); 951 return copyout(&wpaie, ireq->i_data, ireq->i_len); 952 } 953 954 static int 955 ieee80211_ioctl_getstastats(struct ieee80211com *ic, struct ieee80211req *ireq) 956 { 957 struct ieee80211_node *ni; 958 uint8_t macaddr[IEEE80211_ADDR_LEN]; 959 const int off = __offsetof(struct ieee80211req_sta_stats, is_stats); 960 int error; 961 962 if (ireq->i_len < off) 963 return EINVAL; 964 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN); 965 if (error != 0) 966 return error; 967 ni = ieee80211_find_node(&ic->ic_sta, macaddr); 968 if (ni == NULL) { 969 /* XXX special-case sta-mode until bss is node in ic_sta */ 970 if (ic->ic_opmode != IEEE80211_M_STA) 971 return ENOENT; 972 ni = ieee80211_ref_node(ic->ic_bss); 973 } 974 if (ireq->i_len > sizeof(struct ieee80211req_sta_stats)) 975 ireq->i_len = sizeof(struct ieee80211req_sta_stats); 976 /* NB: copy out only the statistics */ 977 error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off, 978 ireq->i_len - off); 979 ieee80211_free_node(ni); 980 return error; 981 } 982 983 static void 984 get_scan_result(struct ieee80211req_scan_result *sr, 985 const struct ieee80211_node *ni) 986 { 987 struct ieee80211com *ic = ni->ni_ic; 988 u_int ielen = 0; 989 990 memset(sr, 0, sizeof(*sr)); 991 sr->isr_ssid_len = ni->ni_esslen; 992 if (ni->ni_wpa_ie != NULL) 993 ielen += 2+ni->ni_wpa_ie[1]; 994 if (ni->ni_wme_ie != NULL) 995 ielen += 2+ni->ni_wme_ie[1]; 996 997 /* 998 * The value sr->isr_ie_len is defined as a uint8_t, so we 999 * need to be careful to avoid an integer overflow. If the 1000 * value would overflow, we will set isr_ie_len to zero, and 1001 * ieee80211_ioctl_getscanresults (below) will avoid copying 1002 * the (overflowing) data. 1003 */ 1004 if (ielen > 255) 1005 ielen = 0; 1006 sr->isr_ie_len = ielen; 1007 sr->isr_len = sizeof(*sr) + sr->isr_ssid_len + sr->isr_ie_len; 1008 sr->isr_len = roundup(sr->isr_len, sizeof(uint32_t)); 1009 if (ni->ni_chan != IEEE80211_CHAN_ANYC) { 1010 sr->isr_freq = ni->ni_chan->ic_freq; 1011 sr->isr_flags = ni->ni_chan->ic_flags; 1012 } 1013 sr->isr_rssi = ic->ic_node_getrssi(ni); 1014 sr->isr_intval = ni->ni_intval; 1015 sr->isr_capinfo = ni->ni_capinfo; 1016 sr->isr_erp = ni->ni_erp; 1017 IEEE80211_ADDR_COPY(sr->isr_bssid, ni->ni_bssid); 1018 sr->isr_nrates = ni->ni_rates.rs_nrates; 1019 if (sr->isr_nrates > 15) 1020 sr->isr_nrates = 15; 1021 memcpy(sr->isr_rates, ni->ni_rates.rs_rates, sr->isr_nrates); 1022 } 1023 1024 static int 1025 ieee80211_ioctl_getscanresults(struct ieee80211com *ic, struct ieee80211req *ireq) 1026 { 1027 union { 1028 struct ieee80211req_scan_result res; 1029 char data[512]; /* XXX shrink? */ 1030 } u; 1031 struct ieee80211req_scan_result *sr = &u.res; 1032 struct ieee80211_node_table *nt; 1033 struct ieee80211_node *ni; 1034 int error, space; 1035 uint8_t *p, *cp; 1036 1037 p = ireq->i_data; 1038 space = ireq->i_len; 1039 error = 0; 1040 /* XXX locking */ 1041 nt = &ic->ic_scan; 1042 TAILQ_FOREACH(ni, &nt->nt_node, ni_list) { 1043 /* NB: skip pre-scan node state */ 1044 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 1045 continue; 1046 get_scan_result(sr, ni); 1047 if (sr->isr_len > sizeof(u)) 1048 continue; /* XXX */ 1049 if (space < sr->isr_len) 1050 break; 1051 cp = (uint8_t *)(sr+1); 1052 memcpy(cp, ni->ni_essid, ni->ni_esslen); 1053 cp += ni->ni_esslen; 1054 if (sr->isr_ie_len > 0 && ni->ni_wpa_ie != NULL) { 1055 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]); 1056 cp += 2+ni->ni_wpa_ie[1]; 1057 } 1058 if (sr->isr_ie_len > 0 && ni->ni_wme_ie != NULL) { 1059 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]); 1060 cp += 2+ni->ni_wme_ie[1]; 1061 } 1062 error = copyout(sr, p, sr->isr_len); 1063 if (error) 1064 break; 1065 p += sr->isr_len; 1066 space -= sr->isr_len; 1067 } 1068 ireq->i_len -= space; 1069 return error; 1070 } 1071 1072 struct stainforeq { 1073 struct ieee80211com *ic; 1074 struct ieee80211req_sta_info *si; 1075 size_t space; 1076 }; 1077 1078 static size_t 1079 sta_space(const struct ieee80211_node *ni, size_t *ielen) 1080 { 1081 *ielen = 0; 1082 if (ni->ni_wpa_ie != NULL) 1083 *ielen += 2+ni->ni_wpa_ie[1]; 1084 if (ni->ni_wme_ie != NULL) 1085 *ielen += 2+ni->ni_wme_ie[1]; 1086 return roundup(sizeof(struct ieee80211req_sta_info) + *ielen, 1087 sizeof(uint32_t)); 1088 } 1089 1090 static void 1091 get_sta_space(void *arg, struct ieee80211_node *ni) 1092 { 1093 struct stainforeq *req = arg; 1094 struct ieee80211com *ic = ni->ni_ic; 1095 size_t ielen; 1096 1097 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 1098 ni->ni_associd == 0) /* only associated stations */ 1099 return; 1100 req->space += sta_space(ni, &ielen); 1101 } 1102 1103 static void 1104 get_sta_info(void *arg, struct ieee80211_node *ni) 1105 { 1106 struct stainforeq *req = arg; 1107 struct ieee80211com *ic = ni->ni_ic; 1108 struct ieee80211req_sta_info *si; 1109 size_t ielen, len; 1110 uint8_t *cp; 1111 1112 if (ic->ic_opmode == IEEE80211_M_HOSTAP && 1113 ni->ni_associd == 0) /* only associated stations */ 1114 return; 1115 if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */ 1116 return; 1117 len = sta_space(ni, &ielen); 1118 if (len > req->space) 1119 return; 1120 si = req->si; 1121 si->isi_len = len; 1122 si->isi_ie_len = ielen; 1123 si->isi_freq = ni->ni_chan->ic_freq; 1124 si->isi_flags = ni->ni_chan->ic_flags; 1125 si->isi_state = ni->ni_flags; 1126 si->isi_authmode = ni->ni_authmode; 1127 si->isi_rssi = ic->ic_node_getrssi(ni); 1128 si->isi_noise = 0; /* XXX */ 1129 si->isi_capinfo = ni->ni_capinfo; 1130 si->isi_erp = ni->ni_erp; 1131 IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr); 1132 si->isi_nrates = ni->ni_rates.rs_nrates; 1133 if (si->isi_nrates > 15) 1134 si->isi_nrates = 15; 1135 memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates); 1136 si->isi_txrate = ni->ni_txrate; 1137 si->isi_associd = ni->ni_associd; 1138 si->isi_txpower = ni->ni_txpower; 1139 si->isi_vlan = ni->ni_vlan; 1140 if (ni->ni_flags & IEEE80211_NODE_QOS) { 1141 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs)); 1142 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs)); 1143 } else { 1144 si->isi_txseqs[0] = ni->ni_txseqs[0]; 1145 si->isi_rxseqs[0] = ni->ni_rxseqs[0]; 1146 } 1147 /* NB: leave all cases in case we relax ni_associd == 0 check */ 1148 if (ieee80211_node_is_authorized(ni)) 1149 si->isi_inact = ic->ic_inact_run; 1150 else if (ni->ni_associd != 0) 1151 si->isi_inact = ic->ic_inact_auth; 1152 else 1153 si->isi_inact = ic->ic_inact_init; 1154 si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT; 1155 1156 cp = (uint8_t *)(si+1); 1157 if (ni->ni_wpa_ie != NULL) { 1158 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]); 1159 cp += 2+ni->ni_wpa_ie[1]; 1160 } 1161 if (ni->ni_wme_ie != NULL) { 1162 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]); 1163 cp += 2+ni->ni_wme_ie[1]; 1164 } 1165 1166 req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len); 1167 req->space -= len; 1168 } 1169 1170 static int 1171 ieee80211_ioctl_getstainfo(struct ieee80211com *ic, struct ieee80211req *ireq) 1172 { 1173 uint8_t macaddr[IEEE80211_ADDR_LEN]; 1174 const int off = __offsetof(struct ieee80211req_sta_req, info); 1175 struct ieee80211_node *ni; 1176 struct stainforeq req; 1177 int error; 1178 1179 if (ireq->i_len < sizeof(struct ieee80211req_sta_req)) 1180 return EFAULT; 1181 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN); 1182 if (error != 0) 1183 return error; 1184 if (IEEE80211_ADDR_EQ(macaddr, ic->ic_ifp->if_broadcastaddr)) { 1185 ni = NULL; 1186 } else { 1187 ni = ieee80211_find_node(&ic->ic_sta, macaddr); 1188 if (ni == NULL) { 1189 /* XXX special-case sta-mode until bss is in ic_sta */ 1190 if (ic->ic_opmode != IEEE80211_M_STA) 1191 return EINVAL; /* XXX */ 1192 ni = ieee80211_ref_node(ic->ic_bss); 1193 } 1194 } 1195 1196 req.space = 0; 1197 if (ni == NULL) 1198 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req); 1199 else 1200 get_sta_space(&req, ni); 1201 if (req.space > ireq->i_len) 1202 req.space = ireq->i_len; 1203 if (req.space > 0) { 1204 size_t space; 1205 void *p; 1206 1207 space = req.space; 1208 /* XXX M_WAITOK after driver lock released */ 1209 p = kmalloc(space, M_TEMP, M_NOWAIT); 1210 if (p == NULL) { 1211 error = ENOMEM; 1212 goto bad; 1213 } 1214 req.si = p; 1215 if (ni == NULL) 1216 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req); 1217 else 1218 get_sta_info(&req, ni); 1219 ireq->i_len = space - req.space; 1220 error = copyout(p, (uint8_t *)ireq->i_data + off, ireq->i_len); 1221 kfree(p, M_TEMP); 1222 } else { 1223 ireq->i_len = 0; 1224 } 1225 bad: 1226 if (ni != NULL) 1227 ieee80211_free_node(ni); 1228 return error; 1229 } 1230 1231 static int 1232 ieee80211_ioctl_getstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq) 1233 { 1234 struct ieee80211_node *ni; 1235 struct ieee80211req_sta_txpow txpow; 1236 int error; 1237 1238 if (ireq->i_len != sizeof(txpow)) 1239 return EINVAL; 1240 error = copyin(ireq->i_data, &txpow, sizeof(txpow)); 1241 if (error != 0) 1242 return error; 1243 ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr); 1244 if (ni == NULL) 1245 return EINVAL; /* XXX */ 1246 txpow.it_txpow = ni->ni_txpower; 1247 error = copyout(&txpow, ireq->i_data, sizeof(txpow)); 1248 ieee80211_free_node(ni); 1249 return error; 1250 } 1251 1252 static int 1253 ieee80211_ioctl_getwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq) 1254 { 1255 struct ieee80211_wme_state *wme = &ic->ic_wme; 1256 struct wmeParams *wmep; 1257 int ac; 1258 1259 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 1260 return EINVAL; 1261 1262 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL); 1263 if (ac >= WME_NUM_AC) 1264 ac = WME_AC_BE; 1265 if (ireq->i_len & IEEE80211_WMEPARAM_BSS) 1266 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac]; 1267 else 1268 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac]; 1269 switch (ireq->i_type) { 1270 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */ 1271 ireq->i_val = wmep->wmep_logcwmin; 1272 break; 1273 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */ 1274 ireq->i_val = wmep->wmep_logcwmax; 1275 break; 1276 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */ 1277 ireq->i_val = wmep->wmep_aifsn; 1278 break; 1279 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */ 1280 ireq->i_val = wmep->wmep_txopLimit; 1281 break; 1282 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */ 1283 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac]; 1284 ireq->i_val = wmep->wmep_acm; 1285 break; 1286 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/ 1287 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac]; 1288 ireq->i_val = !wmep->wmep_noackPolicy; 1289 break; 1290 } 1291 return 0; 1292 } 1293 1294 static int 1295 ieee80211_ioctl_getmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq) 1296 { 1297 const struct ieee80211_aclator *acl = ic->ic_acl; 1298 1299 return (acl == NULL ? EINVAL : acl->iac_getioctl(ic, ireq)); 1300 } 1301 1302 /* 1303 * When building the kernel with -O2 on the i386 architecture, gcc 1304 * seems to want to inline this function into ieee80211_ioctl() 1305 * (which is the only routine that calls it). When this happens, 1306 * ieee80211_ioctl() ends up consuming an additional 2K of stack 1307 * space. (Exactly why it needs so much is unclear.) The problem 1308 * is that it's possible for ieee80211_ioctl() to invoke other 1309 * routines (including driver init functions) which could then find 1310 * themselves perilously close to exhausting the stack. 1311 * 1312 * To avoid this, we deliberately prevent gcc from inlining this 1313 * routine. Another way to avoid this is to use less agressive 1314 * optimization when compiling this file (i.e. -O instead of -O2) 1315 * but special-casing the compilation of this one module in the 1316 * build system would be awkward. 1317 */ 1318 #ifdef __GNUC__ 1319 __attribute__ ((noinline)) 1320 #endif 1321 static int 1322 ieee80211_ioctl_get80211(struct ieee80211com *ic, u_long cmd, 1323 struct ieee80211req *ireq, struct ucred *cr) 1324 { 1325 const struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn; 1326 int error = 0; 1327 u_int kid, len, m; 1328 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE]; 1329 char tmpssid[IEEE80211_NWID_LEN]; 1330 1331 switch (ireq->i_type) { 1332 case IEEE80211_IOC_SSID: 1333 switch (ic->ic_state) { 1334 case IEEE80211_S_INIT: 1335 case IEEE80211_S_SCAN: 1336 ireq->i_len = ic->ic_des_esslen; 1337 memcpy(tmpssid, ic->ic_des_essid, ireq->i_len); 1338 break; 1339 default: 1340 ireq->i_len = ic->ic_bss->ni_esslen; 1341 memcpy(tmpssid, ic->ic_bss->ni_essid, 1342 ireq->i_len); 1343 break; 1344 } 1345 error = copyout(tmpssid, ireq->i_data, ireq->i_len); 1346 break; 1347 case IEEE80211_IOC_NUMSSIDS: 1348 ireq->i_val = 1; 1349 break; 1350 case IEEE80211_IOC_WEP: 1351 if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0) 1352 ireq->i_val = IEEE80211_WEP_OFF; 1353 else if (ic->ic_flags & IEEE80211_F_DROPUNENC) 1354 ireq->i_val = IEEE80211_WEP_ON; 1355 else 1356 ireq->i_val = IEEE80211_WEP_MIXED; 1357 break; 1358 case IEEE80211_IOC_WEPKEY: 1359 kid = (u_int) ireq->i_val; 1360 if (kid >= IEEE80211_WEP_NKID) 1361 return EINVAL; 1362 len = (u_int) ic->ic_nw_keys[kid].wk_keylen; 1363 /* NB: only root can read WEP keys */ 1364 if (suser_cred(cr, NULL_CRED_OKAY) == 0) { 1365 bcopy(ic->ic_nw_keys[kid].wk_key, tmpkey, len); 1366 } else { 1367 bzero(tmpkey, len); 1368 } 1369 ireq->i_len = len; 1370 error = copyout(tmpkey, ireq->i_data, len); 1371 break; 1372 case IEEE80211_IOC_NUMWEPKEYS: 1373 ireq->i_val = IEEE80211_WEP_NKID; 1374 break; 1375 case IEEE80211_IOC_WEPTXKEY: 1376 ireq->i_val = ic->ic_def_txkey; 1377 break; 1378 case IEEE80211_IOC_AUTHMODE: 1379 if (ic->ic_flags & IEEE80211_F_WPA) 1380 ireq->i_val = IEEE80211_AUTH_WPA; 1381 else 1382 ireq->i_val = ic->ic_bss->ni_authmode; 1383 break; 1384 case IEEE80211_IOC_CHANNEL: 1385 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan); 1386 break; 1387 case IEEE80211_IOC_POWERSAVE: 1388 if (ic->ic_flags & IEEE80211_F_PMGTON) 1389 ireq->i_val = IEEE80211_POWERSAVE_ON; 1390 else 1391 ireq->i_val = IEEE80211_POWERSAVE_OFF; 1392 break; 1393 case IEEE80211_IOC_POWERSAVESLEEP: 1394 ireq->i_val = ic->ic_lintval; 1395 break; 1396 case IEEE80211_IOC_RTSTHRESHOLD: 1397 ireq->i_val = ic->ic_rtsthreshold; 1398 break; 1399 case IEEE80211_IOC_PROTMODE: 1400 ireq->i_val = ic->ic_protmode; 1401 break; 1402 case IEEE80211_IOC_TXPOWER: 1403 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0) 1404 return EINVAL; 1405 ireq->i_val = ic->ic_txpowlimit; 1406 break; 1407 case IEEE80211_IOC_MCASTCIPHER: 1408 ireq->i_val = rsn->rsn_mcastcipher; 1409 break; 1410 case IEEE80211_IOC_MCASTKEYLEN: 1411 ireq->i_val = rsn->rsn_mcastkeylen; 1412 break; 1413 case IEEE80211_IOC_UCASTCIPHERS: 1414 ireq->i_val = 0; 1415 for (m = 0x1; m != 0; m <<= 1) 1416 if (rsn->rsn_ucastcipherset & m) 1417 ireq->i_val |= 1<<cap2cipher(m); 1418 break; 1419 case IEEE80211_IOC_UCASTCIPHER: 1420 ireq->i_val = rsn->rsn_ucastcipher; 1421 break; 1422 case IEEE80211_IOC_UCASTKEYLEN: 1423 ireq->i_val = rsn->rsn_ucastkeylen; 1424 break; 1425 case IEEE80211_IOC_KEYMGTALGS: 1426 ireq->i_val = rsn->rsn_keymgmtset; 1427 break; 1428 case IEEE80211_IOC_RSNCAPS: 1429 ireq->i_val = rsn->rsn_caps; 1430 break; 1431 case IEEE80211_IOC_WPA: 1432 switch (ic->ic_flags & IEEE80211_F_WPA) { 1433 case IEEE80211_F_WPA1: 1434 ireq->i_val = 1; 1435 break; 1436 case IEEE80211_F_WPA2: 1437 ireq->i_val = 2; 1438 break; 1439 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2: 1440 ireq->i_val = 3; 1441 break; 1442 default: 1443 ireq->i_val = 0; 1444 break; 1445 } 1446 break; 1447 case IEEE80211_IOC_CHANLIST: 1448 error = ieee80211_ioctl_getchanlist(ic, ireq); 1449 break; 1450 case IEEE80211_IOC_ROAMING: 1451 ireq->i_val = ic->ic_roaming; 1452 break; 1453 case IEEE80211_IOC_PRIVACY: 1454 ireq->i_val = (ic->ic_flags & IEEE80211_F_PRIVACY) != 0; 1455 break; 1456 case IEEE80211_IOC_DROPUNENCRYPTED: 1457 ireq->i_val = (ic->ic_flags & IEEE80211_F_DROPUNENC) != 0; 1458 break; 1459 case IEEE80211_IOC_COUNTERMEASURES: 1460 ireq->i_val = (ic->ic_flags & IEEE80211_F_COUNTERM) != 0; 1461 break; 1462 case IEEE80211_IOC_DRIVER_CAPS: 1463 if (ireq->i_len >= sizeof(ic->ic_caps_ext)) { 1464 error = copyout(&ic->ic_caps_ext, ireq->i_data, 1465 sizeof(ic->ic_caps_ext)); 1466 } 1467 if (error == 0) { 1468 ireq->i_val = ic->ic_caps >> 16; 1469 ireq->i_len = ic->ic_caps & 0xffff; 1470 } 1471 break; 1472 case IEEE80211_IOC_WME: 1473 ireq->i_val = (ic->ic_flags & IEEE80211_F_WME) != 0; 1474 break; 1475 case IEEE80211_IOC_HIDESSID: 1476 ireq->i_val = (ic->ic_flags & IEEE80211_F_HIDESSID) != 0; 1477 break; 1478 case IEEE80211_IOC_APBRIDGE: 1479 ireq->i_val = (ic->ic_flags & IEEE80211_F_NOBRIDGE) == 0; 1480 break; 1481 case IEEE80211_IOC_OPTIE: 1482 if (ic->ic_opt_ie == NULL) 1483 return EINVAL; 1484 /* NB: truncate, caller can check length */ 1485 if (ireq->i_len > ic->ic_opt_ie_len) 1486 ireq->i_len = ic->ic_opt_ie_len; 1487 error = copyout(ic->ic_opt_ie, ireq->i_data, ireq->i_len); 1488 break; 1489 case IEEE80211_IOC_WPAKEY: 1490 error = ieee80211_ioctl_getkey(ic, ireq, cr); 1491 break; 1492 case IEEE80211_IOC_CHANINFO: 1493 error = ieee80211_ioctl_getchaninfo(ic, ireq); 1494 break; 1495 case IEEE80211_IOC_BSSID: 1496 if (ireq->i_len != IEEE80211_ADDR_LEN) 1497 return EINVAL; 1498 error = copyout(ic->ic_state == IEEE80211_S_RUN ? 1499 ic->ic_bss->ni_bssid : 1500 ic->ic_des_bssid, 1501 ireq->i_data, ireq->i_len); 1502 break; 1503 case IEEE80211_IOC_WPAIE: 1504 error = ieee80211_ioctl_getwpaie(ic, ireq); 1505 break; 1506 case IEEE80211_IOC_SCAN_RESULTS: 1507 error = ieee80211_ioctl_getscanresults(ic, ireq); 1508 break; 1509 case IEEE80211_IOC_STA_STATS: 1510 error = ieee80211_ioctl_getstastats(ic, ireq); 1511 break; 1512 case IEEE80211_IOC_TXPOWMAX: 1513 ireq->i_val = ic->ic_bss->ni_txpower; 1514 break; 1515 case IEEE80211_IOC_STA_TXPOW: 1516 error = ieee80211_ioctl_getstatxpow(ic, ireq); 1517 break; 1518 case IEEE80211_IOC_STA_INFO: 1519 error = ieee80211_ioctl_getstainfo(ic, ireq); 1520 break; 1521 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */ 1522 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */ 1523 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */ 1524 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */ 1525 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */ 1526 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (bss only) */ 1527 error = ieee80211_ioctl_getwmeparam(ic, ireq); 1528 break; 1529 case IEEE80211_IOC_DTIM_PERIOD: 1530 ireq->i_val = ic->ic_dtim_period; 1531 break; 1532 case IEEE80211_IOC_BEACON_INTERVAL: 1533 /* NB: get from ic_bss for station mode */ 1534 ireq->i_val = ic->ic_bss->ni_intval; 1535 break; 1536 case IEEE80211_IOC_PUREG: 1537 ireq->i_val = (ic->ic_flags & IEEE80211_F_PUREG) != 0; 1538 break; 1539 case IEEE80211_IOC_MCAST_RATE: 1540 ireq->i_val = ic->ic_mcast_rate; 1541 break; 1542 case IEEE80211_IOC_FRAGTHRESHOLD: 1543 ireq->i_val = ic->ic_fragthreshold; 1544 break; 1545 case IEEE80211_IOC_MACCMD: 1546 error = ieee80211_ioctl_getmaccmd(ic, ireq); 1547 break; 1548 case IEEE80211_IOC_BURST: 1549 ireq->i_val = (ic->ic_flags & IEEE80211_F_BURST) != 0; 1550 break; 1551 case IEEE80211_IOC_RATECTL: 1552 ireq->i_val = ic->ic_ratectl.rc_st_ratectl; 1553 break; 1554 case IEEE80211_IOC_BMISSTHRESHOLD: 1555 ireq->i_val = ic->ic_bmissthreshold; 1556 break; 1557 default: 1558 error = EINVAL; 1559 break; 1560 } 1561 return error; 1562 } 1563 1564 static int 1565 ieee80211_ioctl_setoptie(struct ieee80211com *ic, struct ieee80211req *ireq) 1566 { 1567 int error; 1568 void *ie, *oie; 1569 1570 /* 1571 * NB: Doing this for ap operation could be useful (e.g. for 1572 * WPA and/or WME) except that it typically is worthless 1573 * without being able to intervene when processing 1574 * association response frames--so disallow it for now. 1575 */ 1576 if (ic->ic_opmode != IEEE80211_M_STA) 1577 return EINVAL; 1578 if (ireq->i_len > IEEE80211_MAX_OPT_IE) 1579 return EINVAL; 1580 if (ireq->i_len > 0) { 1581 ie = kmalloc(ireq->i_len, M_DEVBUF, M_NOWAIT); 1582 if (ie == NULL) 1583 return ENOMEM; 1584 error = copyin(ireq->i_data, ie, ireq->i_len); 1585 if (error) { 1586 kfree(ie, M_DEVBUF); 1587 return error; 1588 } 1589 } else { 1590 ie = NULL; 1591 ireq->i_len = 0; 1592 } 1593 /* XXX sanity check data? */ 1594 oie = ic->ic_opt_ie; 1595 ic->ic_opt_ie = ie; 1596 ic->ic_opt_ie_len = ireq->i_len; 1597 if (oie != NULL) 1598 kfree(oie, M_DEVBUF); 1599 return 0; 1600 } 1601 1602 static int 1603 ieee80211_ioctl_setkey(struct ieee80211com *ic, struct ieee80211req *ireq) 1604 { 1605 struct ieee80211req_key ik; 1606 struct ieee80211_node *ni; 1607 struct ieee80211_key *wk; 1608 uint16_t kid; 1609 int error; 1610 1611 if (ireq->i_len != sizeof(ik)) 1612 return EINVAL; 1613 error = copyin(ireq->i_data, &ik, sizeof(ik)); 1614 if (error) 1615 return error; 1616 /* NB: cipher support is verified by ieee80211_crypt_newkey */ 1617 /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */ 1618 if (ik.ik_keylen > sizeof(ik.ik_keydata)) 1619 return E2BIG; 1620 kid = ik.ik_keyix; 1621 if (kid == IEEE80211_KEYIX_NONE) { 1622 /* XXX unicast keys currently must be tx/rx */ 1623 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV)) 1624 return EINVAL; 1625 if (ic->ic_opmode == IEEE80211_M_STA) { 1626 ni = ieee80211_ref_node(ic->ic_bss); 1627 if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) { 1628 ieee80211_free_node(ni); 1629 return EADDRNOTAVAIL; 1630 } 1631 } else { 1632 ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr); 1633 if (ni == NULL) 1634 return ENOENT; 1635 } 1636 wk = &ni->ni_ucastkey; 1637 } else { 1638 if (kid >= IEEE80211_WEP_NKID) 1639 return EINVAL; 1640 wk = &ic->ic_nw_keys[kid]; 1641 /* 1642 * Global slots start off w/o any assigned key index. 1643 * Force one here for consistency with IEEE80211_IOC_WEPKEY. 1644 */ 1645 if (wk->wk_keyix == IEEE80211_KEYIX_NONE) 1646 wk->wk_keyix = kid; 1647 ni = NULL; 1648 } 1649 error = 0; 1650 ieee80211_key_update_begin(ic); 1651 if (ieee80211_crypto_newkey(ic, ik.ik_type, ik.ik_flags, wk)) { 1652 wk->wk_keylen = ik.ik_keylen; 1653 /* NB: MIC presence is implied by cipher type */ 1654 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE) 1655 wk->wk_keylen = IEEE80211_KEYBUF_SIZE; 1656 wk->wk_keyrsc = ik.ik_keyrsc; 1657 wk->wk_keytsc = 0; /* new key, reset */ 1658 memset(wk->wk_key, 0, sizeof(wk->wk_key)); 1659 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen); 1660 if (!ieee80211_crypto_setkey(ic, wk, 1661 ni != NULL ? ni->ni_macaddr : ik.ik_macaddr)) 1662 error = EIO; 1663 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT)) 1664 ic->ic_def_txkey = kid; 1665 } else 1666 error = ENXIO; 1667 ieee80211_key_update_end(ic); 1668 if (ni != NULL) 1669 ieee80211_free_node(ni); 1670 return error; 1671 } 1672 1673 static int 1674 ieee80211_ioctl_delkey(struct ieee80211com *ic, struct ieee80211req *ireq) 1675 { 1676 struct ieee80211req_del_key dk; 1677 int kid, error; 1678 1679 if (ireq->i_len != sizeof(dk)) 1680 return EINVAL; 1681 error = copyin(ireq->i_data, &dk, sizeof(dk)); 1682 if (error) 1683 return error; 1684 kid = dk.idk_keyix; 1685 /* XXX uint8_t -> uint16_t */ 1686 if (dk.idk_keyix == (uint8_t)IEEE80211_KEYIX_NONE) { 1687 struct ieee80211_node *ni; 1688 1689 if (ic->ic_opmode == IEEE80211_M_STA) { 1690 ni = ieee80211_ref_node(ic->ic_bss); 1691 if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) { 1692 ieee80211_free_node(ni); 1693 return EADDRNOTAVAIL; 1694 } 1695 } else { 1696 ni = ieee80211_find_node(&ic->ic_sta, dk.idk_macaddr); 1697 if (ni == NULL) 1698 return ENOENT; 1699 } 1700 /* XXX error return */ 1701 ieee80211_node_delucastkey(ni); 1702 ieee80211_free_node(ni); 1703 } else { 1704 if (kid >= IEEE80211_WEP_NKID) 1705 return EINVAL; 1706 /* XXX error return */ 1707 ieee80211_crypto_delkey(ic, &ic->ic_nw_keys[kid]); 1708 } 1709 return 0; 1710 } 1711 1712 static void 1713 domlme(void *arg, struct ieee80211_node *ni) 1714 { 1715 struct ieee80211com *ic = ni->ni_ic; 1716 struct ieee80211req_mlme *mlme = arg; 1717 1718 if (ni->ni_associd != 0) { 1719 IEEE80211_SEND_MGMT(ic, ni, 1720 mlme->im_op == IEEE80211_MLME_DEAUTH ? 1721 IEEE80211_FC0_SUBTYPE_DEAUTH : 1722 IEEE80211_FC0_SUBTYPE_DISASSOC, 1723 mlme->im_reason); 1724 } 1725 ieee80211_node_leave(ic, ni); 1726 } 1727 1728 static int 1729 ieee80211_ioctl_setmlme(struct ieee80211com *ic, struct ieee80211req *ireq) 1730 { 1731 struct ieee80211req_mlme mlme; 1732 struct ieee80211_node *ni; 1733 int error; 1734 1735 if (ireq->i_len != sizeof(mlme)) 1736 return EINVAL; 1737 error = copyin(ireq->i_data, &mlme, sizeof(mlme)); 1738 if (error) 1739 return error; 1740 switch (mlme.im_op) { 1741 case IEEE80211_MLME_ASSOC: 1742 if (ic->ic_opmode != IEEE80211_M_STA) 1743 return EINVAL; 1744 /* XXX must be in S_SCAN state? */ 1745 1746 if (mlme.im_ssid_len != 0) { 1747 /* 1748 * Desired ssid specified; must match both bssid and 1749 * ssid to distinguish ap advertising multiple ssid's. 1750 */ 1751 ni = ieee80211_find_node_with_ssid(&ic->ic_scan, 1752 mlme.im_macaddr, 1753 mlme.im_ssid_len, mlme.im_ssid); 1754 } else { 1755 /* 1756 * Normal case; just match bssid. 1757 */ 1758 ni = ieee80211_find_node(&ic->ic_scan, mlme.im_macaddr); 1759 } 1760 if (ni == NULL) 1761 return EINVAL; 1762 if (!ieee80211_sta_join(ic, ni)) { 1763 ieee80211_free_node(ni); 1764 return EINVAL; 1765 } 1766 break; 1767 case IEEE80211_MLME_DISASSOC: 1768 case IEEE80211_MLME_DEAUTH: 1769 switch (ic->ic_opmode) { 1770 case IEEE80211_M_STA: 1771 /* XXX not quite right */ 1772 ieee80211_new_state(ic, IEEE80211_S_INIT, 1773 mlme.im_reason); 1774 break; 1775 case IEEE80211_M_HOSTAP: 1776 /* NB: the broadcast address means do 'em all */ 1777 if (!IEEE80211_ADDR_EQ(mlme.im_macaddr, ic->ic_ifp->if_broadcastaddr)) { 1778 if ((ni = ieee80211_find_node(&ic->ic_sta, 1779 mlme.im_macaddr)) == NULL) 1780 return EINVAL; 1781 domlme(&mlme, ni); 1782 ieee80211_free_node(ni); 1783 } else { 1784 ieee80211_iterate_nodes(&ic->ic_sta, 1785 domlme, &mlme); 1786 } 1787 break; 1788 default: 1789 return EINVAL; 1790 } 1791 break; 1792 case IEEE80211_MLME_AUTHORIZE: 1793 case IEEE80211_MLME_UNAUTHORIZE: 1794 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 1795 return EINVAL; 1796 ni = ieee80211_find_node(&ic->ic_sta, mlme.im_macaddr); 1797 if (ni == NULL) 1798 return EINVAL; 1799 if (mlme.im_op == IEEE80211_MLME_AUTHORIZE) 1800 ieee80211_node_authorize(ni); 1801 else 1802 ieee80211_node_unauthorize(ni); 1803 ieee80211_free_node(ni); 1804 break; 1805 default: 1806 return EINVAL; 1807 } 1808 return 0; 1809 } 1810 1811 static int 1812 ieee80211_ioctl_macmac(struct ieee80211com *ic, struct ieee80211req *ireq) 1813 { 1814 uint8_t mac[IEEE80211_ADDR_LEN]; 1815 const struct ieee80211_aclator *acl = ic->ic_acl; 1816 int error; 1817 1818 if (ireq->i_len != sizeof(mac)) 1819 return EINVAL; 1820 error = copyin(ireq->i_data, mac, ireq->i_len); 1821 if (error) 1822 return error; 1823 if (acl == NULL) { 1824 acl = ieee80211_aclator_get("mac"); 1825 if (acl == NULL || !acl->iac_attach(ic)) 1826 return EINVAL; 1827 ic->ic_acl = acl; 1828 } 1829 if (ireq->i_type == IEEE80211_IOC_ADDMAC) 1830 acl->iac_add(ic, mac); 1831 else 1832 acl->iac_remove(ic, mac); 1833 return 0; 1834 } 1835 1836 static int 1837 ieee80211_ioctl_setmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq) 1838 { 1839 const struct ieee80211_aclator *acl = ic->ic_acl; 1840 1841 switch (ireq->i_val) { 1842 case IEEE80211_MACCMD_POLICY_OPEN: 1843 case IEEE80211_MACCMD_POLICY_ALLOW: 1844 case IEEE80211_MACCMD_POLICY_DENY: 1845 if (acl == NULL) { 1846 acl = ieee80211_aclator_get("mac"); 1847 if (acl == NULL || !acl->iac_attach(ic)) 1848 return EINVAL; 1849 ic->ic_acl = acl; 1850 } 1851 acl->iac_setpolicy(ic, ireq->i_val); 1852 break; 1853 case IEEE80211_MACCMD_FLUSH: 1854 if (acl != NULL) 1855 acl->iac_flush(ic); 1856 /* NB: silently ignore when not in use */ 1857 break; 1858 case IEEE80211_MACCMD_DETACH: 1859 if (acl != NULL) { 1860 ic->ic_acl = NULL; 1861 acl->iac_detach(ic); 1862 } 1863 break; 1864 default: 1865 if (acl == NULL) 1866 return EINVAL; 1867 else 1868 return acl->iac_setioctl(ic, ireq); 1869 } 1870 return 0; 1871 } 1872 1873 static int 1874 ieee80211_ioctl_setchanlist(struct ieee80211com *ic, struct ieee80211req *ireq) 1875 { 1876 struct ieee80211req_chanlist list; 1877 u_char chanlist[IEEE80211_CHAN_BYTES]; 1878 int i, j, error; 1879 1880 if (ireq->i_len != sizeof(list)) 1881 return EINVAL; 1882 error = copyin(ireq->i_data, &list, sizeof(list)); 1883 if (error) 1884 return error; 1885 memset(chanlist, 0, sizeof(chanlist)); 1886 /* 1887 * Since channel 0 is not available for DS, channel 1 1888 * is assigned to LSB on WaveLAN. 1889 */ 1890 if (ic->ic_phytype == IEEE80211_T_DS) 1891 i = 1; 1892 else 1893 i = 0; 1894 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) { 1895 /* 1896 * NB: silently discard unavailable channels so users 1897 * can specify 1-255 to get all available channels. 1898 */ 1899 if (isset(list.ic_channels, j) && isset(ic->ic_chan_avail, i)) 1900 setbit(chanlist, i); 1901 } 1902 if (ic->ic_ibss_chan == NULL || 1903 isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) { 1904 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) 1905 if (isset(chanlist, i)) { 1906 ic->ic_ibss_chan = &ic->ic_channels[i]; 1907 goto found; 1908 } 1909 return EINVAL; /* no active channels */ 1910 found: 1911 ; 1912 } 1913 memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active)); 1914 return IS_UP_AUTO(ic) ? ENETRESET : 0; 1915 } 1916 1917 static int 1918 ieee80211_ioctl_setstastats(struct ieee80211com *ic, struct ieee80211req *ireq) 1919 { 1920 struct ieee80211_node *ni; 1921 uint8_t macaddr[IEEE80211_ADDR_LEN]; 1922 int error; 1923 1924 /* 1925 * NB: we could copyin ieee80211req_sta_stats so apps 1926 * could make selective changes but that's overkill; 1927 * just clear all stats for now. 1928 */ 1929 if (ireq->i_len < IEEE80211_ADDR_LEN) 1930 return EINVAL; 1931 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN); 1932 if (error != 0) 1933 return error; 1934 ni = ieee80211_find_node(&ic->ic_sta, macaddr); 1935 if (ni == NULL) 1936 return EINVAL; /* XXX */ 1937 memset(&ni->ni_stats, 0, sizeof(ni->ni_stats)); 1938 ieee80211_free_node(ni); 1939 return 0; 1940 } 1941 1942 static int 1943 ieee80211_ioctl_setstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq) 1944 { 1945 struct ieee80211_node *ni; 1946 struct ieee80211req_sta_txpow txpow; 1947 int error; 1948 1949 if (ireq->i_len != sizeof(txpow)) 1950 return EINVAL; 1951 error = copyin(ireq->i_data, &txpow, sizeof(txpow)); 1952 if (error != 0) 1953 return error; 1954 ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr); 1955 if (ni == NULL) 1956 return EINVAL; /* XXX */ 1957 ni->ni_txpower = txpow.it_txpow; 1958 ieee80211_free_node(ni); 1959 return error; 1960 } 1961 1962 static int 1963 ieee80211_ioctl_setwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq) 1964 { 1965 struct ieee80211_wme_state *wme = &ic->ic_wme; 1966 struct wmeParams *wmep, *chanp; 1967 int isbss, ac; 1968 1969 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 1970 return EINVAL; 1971 1972 isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS); 1973 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL); 1974 if (ac >= WME_NUM_AC) 1975 ac = WME_AC_BE; 1976 if (isbss) { 1977 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac]; 1978 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac]; 1979 } else { 1980 chanp = &wme->wme_chanParams.cap_wmeParams[ac]; 1981 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac]; 1982 } 1983 switch (ireq->i_type) { 1984 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */ 1985 if (isbss) { 1986 wmep->wmep_logcwmin = ireq->i_val; 1987 if ((wme->wme_flags & WME_F_AGGRMODE) == 0) 1988 chanp->wmep_logcwmin = ireq->i_val; 1989 } else { 1990 wmep->wmep_logcwmin = chanp->wmep_logcwmin = 1991 ireq->i_val; 1992 } 1993 break; 1994 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */ 1995 if (isbss) { 1996 wmep->wmep_logcwmax = ireq->i_val; 1997 if ((wme->wme_flags & WME_F_AGGRMODE) == 0) 1998 chanp->wmep_logcwmax = ireq->i_val; 1999 } else { 2000 wmep->wmep_logcwmax = chanp->wmep_logcwmax = 2001 ireq->i_val; 2002 } 2003 break; 2004 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */ 2005 if (isbss) { 2006 wmep->wmep_aifsn = ireq->i_val; 2007 if ((wme->wme_flags & WME_F_AGGRMODE) == 0) 2008 chanp->wmep_aifsn = ireq->i_val; 2009 } else { 2010 wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val; 2011 } 2012 break; 2013 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */ 2014 if (isbss) { 2015 wmep->wmep_txopLimit = ireq->i_val; 2016 if ((wme->wme_flags & WME_F_AGGRMODE) == 0) 2017 chanp->wmep_txopLimit = ireq->i_val; 2018 } else { 2019 wmep->wmep_txopLimit = chanp->wmep_txopLimit = 2020 ireq->i_val; 2021 } 2022 break; 2023 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */ 2024 wmep->wmep_acm = ireq->i_val; 2025 if ((wme->wme_flags & WME_F_AGGRMODE) == 0) 2026 chanp->wmep_acm = ireq->i_val; 2027 break; 2028 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/ 2029 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy = 2030 (ireq->i_val) == 0; 2031 break; 2032 } 2033 ieee80211_wme_updateparams(ic); 2034 return 0; 2035 } 2036 2037 static int 2038 cipher2cap(int cipher) 2039 { 2040 switch (cipher) { 2041 case IEEE80211_CIPHER_WEP: return IEEE80211_C_WEP; 2042 case IEEE80211_CIPHER_AES_OCB: return IEEE80211_C_AES; 2043 case IEEE80211_CIPHER_AES_CCM: return IEEE80211_C_AES_CCM; 2044 case IEEE80211_CIPHER_CKIP: return IEEE80211_C_CKIP; 2045 case IEEE80211_CIPHER_TKIP: return IEEE80211_C_TKIP; 2046 } 2047 return 0; 2048 } 2049 2050 static int 2051 ieee80211_ioctl_set80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq) 2052 { 2053 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 2054 struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn; 2055 int error; 2056 const struct ieee80211_authenticator *auth; 2057 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE]; 2058 char tmpssid[IEEE80211_NWID_LEN]; 2059 uint8_t tmpbssid[IEEE80211_ADDR_LEN]; 2060 struct ieee80211_key *k; 2061 int j, caps; 2062 u_int kid; 2063 2064 error = 0; 2065 switch (ireq->i_type) { 2066 case IEEE80211_IOC_SSID: 2067 if (ireq->i_val != 0 || 2068 ireq->i_len > IEEE80211_NWID_LEN) 2069 return EINVAL; 2070 error = copyin(ireq->i_data, tmpssid, ireq->i_len); 2071 if (error) 2072 break; 2073 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN); 2074 ic->ic_des_esslen = ireq->i_len; 2075 memcpy(ic->ic_des_essid, tmpssid, ireq->i_len); 2076 error = ENETRESET; 2077 break; 2078 case IEEE80211_IOC_WEP: 2079 switch (ireq->i_val) { 2080 case IEEE80211_WEP_OFF: 2081 ic->ic_flags &= ~IEEE80211_F_PRIVACY; 2082 ic->ic_flags &= ~IEEE80211_F_DROPUNENC; 2083 break; 2084 case IEEE80211_WEP_ON: 2085 ic->ic_flags |= IEEE80211_F_PRIVACY; 2086 ic->ic_flags |= IEEE80211_F_DROPUNENC; 2087 break; 2088 case IEEE80211_WEP_MIXED: 2089 ic->ic_flags |= IEEE80211_F_PRIVACY; 2090 ic->ic_flags &= ~IEEE80211_F_DROPUNENC; 2091 break; 2092 } 2093 error = ENETRESET; 2094 break; 2095 case IEEE80211_IOC_WEPKEY: 2096 kid = (u_int)ireq->i_val; 2097 if (kid >= IEEE80211_WEP_NKID) 2098 return EINVAL; 2099 k = &ic->ic_nw_keys[kid]; 2100 if (ireq->i_len == 0) { 2101 /* zero-len =>'s delete any existing key */ 2102 ieee80211_crypto_delkey(ic, k); 2103 break; 2104 } 2105 if (ireq->i_len > sizeof(tmpkey)) 2106 return EINVAL; 2107 memset(tmpkey, 0, sizeof(tmpkey)); 2108 error = copyin(ireq->i_data, tmpkey, ireq->i_len); 2109 if (error) 2110 break; 2111 ieee80211_key_update_begin(ic); 2112 k->wk_keyix = kid; /* NB: force fixed key id */ 2113 if (ieee80211_crypto_newkey(ic, IEEE80211_CIPHER_WEP, 2114 IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) { 2115 k->wk_keylen = ireq->i_len; 2116 memcpy(k->wk_key, tmpkey, sizeof(tmpkey)); 2117 if (!ieee80211_crypto_setkey(ic, k, ic->ic_myaddr)) 2118 error = EINVAL; 2119 } else 2120 error = EINVAL; 2121 ieee80211_key_update_end(ic); 2122 if (!error) /* NB: for compatibility */ 2123 error = ENETRESET; 2124 break; 2125 case IEEE80211_IOC_WEPTXKEY: 2126 kid = (u_int) ireq->i_val; 2127 if (kid >= IEEE80211_WEP_NKID && 2128 (uint16_t) kid != IEEE80211_KEYIX_NONE) 2129 return EINVAL; 2130 ic->ic_def_txkey = kid; 2131 error = ENETRESET; /* push to hardware */ 2132 break; 2133 case IEEE80211_IOC_AUTHMODE: 2134 switch (ireq->i_val) { 2135 case IEEE80211_AUTH_WPA: 2136 case IEEE80211_AUTH_8021X: /* 802.1x */ 2137 case IEEE80211_AUTH_OPEN: /* open */ 2138 case IEEE80211_AUTH_SHARED: /* shared-key */ 2139 case IEEE80211_AUTH_AUTO: /* auto */ 2140 auth = ieee80211_authenticator_get(ireq->i_val); 2141 if (auth == NULL) 2142 return EINVAL; 2143 break; 2144 default: 2145 return EINVAL; 2146 } 2147 switch (ireq->i_val) { 2148 case IEEE80211_AUTH_WPA: /* WPA w/ 802.1x */ 2149 ic->ic_flags |= IEEE80211_F_PRIVACY; 2150 ireq->i_val = IEEE80211_AUTH_8021X; 2151 break; 2152 case IEEE80211_AUTH_OPEN: /* open */ 2153 ic->ic_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY); 2154 break; 2155 case IEEE80211_AUTH_SHARED: /* shared-key */ 2156 case IEEE80211_AUTH_8021X: /* 802.1x */ 2157 ic->ic_flags &= ~IEEE80211_F_WPA; 2158 /* both require a key so mark the PRIVACY capability */ 2159 ic->ic_flags |= IEEE80211_F_PRIVACY; 2160 break; 2161 case IEEE80211_AUTH_AUTO: /* auto */ 2162 ic->ic_flags &= ~IEEE80211_F_WPA; 2163 /* XXX PRIVACY handling? */ 2164 /* XXX what's the right way to do this? */ 2165 break; 2166 } 2167 /* NB: authenticator attach/detach happens on state change */ 2168 ic->ic_bss->ni_authmode = ireq->i_val; 2169 /* XXX mixed/mode/usage? */ 2170 ic->ic_auth = auth; 2171 error = ENETRESET; 2172 break; 2173 case IEEE80211_IOC_CHANNEL: 2174 /* XXX 0xffff overflows 16-bit signed */ 2175 if (ireq->i_val == 0 || 2176 ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) 2177 ic->ic_des_chan = IEEE80211_CHAN_ANYC; 2178 else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX || 2179 isclr(ic->ic_chan_active, ireq->i_val)) { 2180 return EINVAL; 2181 } else 2182 ic->ic_ibss_chan = ic->ic_des_chan = 2183 &ic->ic_channels[ireq->i_val]; 2184 switch (ic->ic_state) { 2185 case IEEE80211_S_INIT: 2186 case IEEE80211_S_SCAN: 2187 error = ENETRESET; 2188 break; 2189 default: 2190 /* 2191 * If the desired channel has changed (to something 2192 * other than any) and we're not already scanning, 2193 * then kick the state machine. 2194 */ 2195 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC && 2196 ic->ic_bss->ni_chan != ic->ic_des_chan && 2197 (ic->ic_flags & IEEE80211_F_SCAN) == 0) 2198 error = ENETRESET; 2199 break; 2200 } 2201 if (error == ENETRESET && 2202 ic->ic_opmode == IEEE80211_M_MONITOR) { 2203 if (IS_UP(ic)) { 2204 /* 2205 * Monitor mode can switch directly. 2206 */ 2207 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC) 2208 ic->ic_curchan = ic->ic_des_chan; 2209 error = ic->ic_reset(ic->ic_ifp); 2210 } else 2211 error = 0; 2212 } 2213 break; 2214 case IEEE80211_IOC_POWERSAVE: 2215 switch (ireq->i_val) { 2216 case IEEE80211_POWERSAVE_OFF: 2217 if (ic->ic_flags & IEEE80211_F_PMGTON) { 2218 ic->ic_flags &= ~IEEE80211_F_PMGTON; 2219 error = ENETRESET; 2220 } 2221 break; 2222 case IEEE80211_POWERSAVE_ON: 2223 if ((ic->ic_caps & IEEE80211_C_PMGT) == 0) 2224 error = EINVAL; 2225 else if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) { 2226 ic->ic_flags |= IEEE80211_F_PMGTON; 2227 error = ENETRESET; 2228 } 2229 break; 2230 default: 2231 error = EINVAL; 2232 break; 2233 } 2234 if (error == ENETRESET) { 2235 /* 2236 * Switching in+out of power save mode 2237 * should not require a state change. 2238 */ 2239 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2240 } 2241 break; 2242 case IEEE80211_IOC_POWERSAVESLEEP: 2243 if (ireq->i_val < 0) 2244 return EINVAL; 2245 ic->ic_lintval = ireq->i_val; 2246 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2247 break; 2248 case IEEE80211_IOC_RTSTHRESHOLD: 2249 if (!(IEEE80211_RTS_MIN <= ireq->i_val && 2250 ireq->i_val <= IEEE80211_RTS_MAX)) 2251 return EINVAL; 2252 ic->ic_rtsthreshold = ireq->i_val; 2253 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2254 break; 2255 case IEEE80211_IOC_PROTMODE: 2256 if (ireq->i_val > IEEE80211_PROT_RTSCTS) 2257 return EINVAL; 2258 ic->ic_protmode = ireq->i_val; 2259 /* NB: if not operating in 11g this can wait */ 2260 if (ic->ic_curmode == IEEE80211_MODE_11G) 2261 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2262 break; 2263 case IEEE80211_IOC_TXPOWER: 2264 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0) 2265 return EINVAL; 2266 if (!(IEEE80211_TXPOWER_MIN < ireq->i_val && 2267 ireq->i_val < IEEE80211_TXPOWER_MAX)) 2268 return EINVAL; 2269 ic->ic_txpowlimit = ireq->i_val; 2270 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2271 break; 2272 case IEEE80211_IOC_ROAMING: 2273 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val && 2274 ireq->i_val <= IEEE80211_ROAMING_MANUAL)) 2275 return EINVAL; 2276 ic->ic_roaming = ireq->i_val; 2277 /* XXXX reset? */ 2278 break; 2279 case IEEE80211_IOC_PRIVACY: 2280 if (ireq->i_val) { 2281 /* XXX check for key state? */ 2282 ic->ic_flags |= IEEE80211_F_PRIVACY; 2283 } else 2284 ic->ic_flags &= ~IEEE80211_F_PRIVACY; 2285 break; 2286 case IEEE80211_IOC_DROPUNENCRYPTED: 2287 if (ireq->i_val) 2288 ic->ic_flags |= IEEE80211_F_DROPUNENC; 2289 else 2290 ic->ic_flags &= ~IEEE80211_F_DROPUNENC; 2291 break; 2292 case IEEE80211_IOC_WPAKEY: 2293 error = ieee80211_ioctl_setkey(ic, ireq); 2294 break; 2295 case IEEE80211_IOC_DELKEY: 2296 error = ieee80211_ioctl_delkey(ic, ireq); 2297 break; 2298 case IEEE80211_IOC_MLME: 2299 error = ieee80211_ioctl_setmlme(ic, ireq); 2300 break; 2301 case IEEE80211_IOC_OPTIE: 2302 error = ieee80211_ioctl_setoptie(ic, ireq); 2303 break; 2304 case IEEE80211_IOC_COUNTERMEASURES: 2305 if (ireq->i_val) { 2306 if ((ic->ic_flags & IEEE80211_F_WPA) == 0) 2307 return EINVAL; 2308 ic->ic_flags |= IEEE80211_F_COUNTERM; 2309 } else 2310 ic->ic_flags &= ~IEEE80211_F_COUNTERM; 2311 break; 2312 case IEEE80211_IOC_WPA: 2313 if (ireq->i_val > 3) 2314 return EINVAL; 2315 /* XXX verify ciphers available */ 2316 ic->ic_flags &= ~IEEE80211_F_WPA; 2317 switch (ireq->i_val) { 2318 case 1: 2319 ic->ic_flags |= IEEE80211_F_WPA1; 2320 break; 2321 case 2: 2322 ic->ic_flags |= IEEE80211_F_WPA2; 2323 break; 2324 case 3: 2325 ic->ic_flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2; 2326 break; 2327 } 2328 error = ENETRESET; /* XXX? */ 2329 break; 2330 case IEEE80211_IOC_WME: 2331 if (ireq->i_val) { 2332 if ((ic->ic_caps & IEEE80211_C_WME) == 0) 2333 return EINVAL; 2334 ic->ic_flags |= IEEE80211_F_WME; 2335 } else 2336 ic->ic_flags &= ~IEEE80211_F_WME; 2337 error = ENETRESET; /* XXX maybe not for station? */ 2338 break; 2339 case IEEE80211_IOC_HIDESSID: 2340 if (ireq->i_val) 2341 ic->ic_flags |= IEEE80211_F_HIDESSID; 2342 else 2343 ic->ic_flags &= ~IEEE80211_F_HIDESSID; 2344 error = ENETRESET; 2345 break; 2346 case IEEE80211_IOC_APBRIDGE: 2347 if (ireq->i_val == 0) 2348 ic->ic_flags |= IEEE80211_F_NOBRIDGE; 2349 else 2350 ic->ic_flags &= ~IEEE80211_F_NOBRIDGE; 2351 break; 2352 case IEEE80211_IOC_MCASTCIPHER: 2353 if ((ic->ic_caps & cipher2cap(ireq->i_val)) == 0 && 2354 !ieee80211_crypto_available(ireq->i_val)) 2355 return EINVAL; 2356 rsn->rsn_mcastcipher = ireq->i_val; 2357 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0; 2358 break; 2359 case IEEE80211_IOC_MCASTKEYLEN: 2360 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE)) 2361 return EINVAL; 2362 /* XXX no way to verify driver capability */ 2363 rsn->rsn_mcastkeylen = ireq->i_val; 2364 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0; 2365 break; 2366 case IEEE80211_IOC_UCASTCIPHERS: 2367 /* 2368 * Convert user-specified cipher set to the set 2369 * we can support (via hardware or software). 2370 * NB: this logic intentionally ignores unknown and 2371 * unsupported ciphers so folks can specify 0xff or 2372 * similar and get all available ciphers. 2373 */ 2374 caps = 0; 2375 for (j = 1; j < 32; j++) /* NB: skip WEP */ 2376 if ((ireq->i_val & (1<<j)) && 2377 ((ic->ic_caps & cipher2cap(j)) || 2378 ieee80211_crypto_available(j))) 2379 caps |= 1<<j; 2380 if (caps == 0) /* nothing available */ 2381 return EINVAL; 2382 /* XXX verify ciphers ok for unicast use? */ 2383 /* XXX disallow if running as it'll have no effect */ 2384 rsn->rsn_ucastcipherset = caps; 2385 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0; 2386 break; 2387 case IEEE80211_IOC_UCASTCIPHER: 2388 if ((rsn->rsn_ucastcipherset & cipher2cap(ireq->i_val)) == 0) 2389 return EINVAL; 2390 rsn->rsn_ucastcipher = ireq->i_val; 2391 break; 2392 case IEEE80211_IOC_UCASTKEYLEN: 2393 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE)) 2394 return EINVAL; 2395 /* XXX no way to verify driver capability */ 2396 rsn->rsn_ucastkeylen = ireq->i_val; 2397 break; 2398 case IEEE80211_IOC_DRIVER_CAPS: 2399 /* NB: for testing */ 2400 ic->ic_caps = (((uint16_t)ireq->i_val) << 16) | 2401 ((uint16_t)ireq->i_len); 2402 break; 2403 case IEEE80211_IOC_KEYMGTALGS: 2404 /* XXX check */ 2405 rsn->rsn_keymgmtset = ireq->i_val; 2406 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0; 2407 break; 2408 case IEEE80211_IOC_RSNCAPS: 2409 /* XXX check */ 2410 rsn->rsn_caps = ireq->i_val; 2411 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0; 2412 break; 2413 case IEEE80211_IOC_BSSID: 2414 if (ireq->i_len != sizeof(tmpbssid)) 2415 return EINVAL; 2416 error = copyin(ireq->i_data, tmpbssid, ireq->i_len); 2417 if (error) 2418 break; 2419 IEEE80211_ADDR_COPY(ic->ic_des_bssid, tmpbssid); 2420 if (IEEE80211_ADDR_EQ(ic->ic_des_bssid, zerobssid)) 2421 ic->ic_flags &= ~IEEE80211_F_DESBSSID; 2422 else 2423 ic->ic_flags |= IEEE80211_F_DESBSSID; 2424 error = ENETRESET; 2425 break; 2426 case IEEE80211_IOC_CHANLIST: 2427 error = ieee80211_ioctl_setchanlist(ic, ireq); 2428 break; 2429 case IEEE80211_IOC_SCAN_REQ: 2430 if (ic->ic_opmode == IEEE80211_M_HOSTAP) /* XXX ignore */ 2431 break; 2432 error = ieee80211_setupscan(ic, ic->ic_chan_avail); 2433 if (error == 0) /* XXX background scan */ 2434 error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2435 break; 2436 case IEEE80211_IOC_ADDMAC: 2437 case IEEE80211_IOC_DELMAC: 2438 error = ieee80211_ioctl_macmac(ic, ireq); 2439 break; 2440 case IEEE80211_IOC_MACCMD: 2441 error = ieee80211_ioctl_setmaccmd(ic, ireq); 2442 break; 2443 case IEEE80211_IOC_STA_STATS: 2444 error = ieee80211_ioctl_setstastats(ic, ireq); 2445 break; 2446 case IEEE80211_IOC_STA_TXPOW: 2447 error = ieee80211_ioctl_setstatxpow(ic, ireq); 2448 break; 2449 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */ 2450 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */ 2451 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */ 2452 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */ 2453 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */ 2454 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (bss only) */ 2455 error = ieee80211_ioctl_setwmeparam(ic, ireq); 2456 break; 2457 case IEEE80211_IOC_DTIM_PERIOD: 2458 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 2459 ic->ic_opmode != IEEE80211_M_IBSS) 2460 return EINVAL; 2461 if (IEEE80211_DTIM_MIN <= ireq->i_val && 2462 ireq->i_val <= IEEE80211_DTIM_MAX) { 2463 ic->ic_dtim_period = ireq->i_val; 2464 error = ENETRESET; /* requires restart */ 2465 } else 2466 error = EINVAL; 2467 break; 2468 case IEEE80211_IOC_BEACON_INTERVAL: 2469 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 2470 ic->ic_opmode != IEEE80211_M_IBSS) 2471 return EINVAL; 2472 if (IEEE80211_BINTVAL_MIN <= ireq->i_val && 2473 ireq->i_val <= IEEE80211_BINTVAL_MAX) { 2474 ic->ic_bintval = ireq->i_val; 2475 error = ENETRESET; /* requires restart */ 2476 } else 2477 error = EINVAL; 2478 break; 2479 case IEEE80211_IOC_PUREG: 2480 if (ireq->i_val) 2481 ic->ic_flags |= IEEE80211_F_PUREG; 2482 else 2483 ic->ic_flags &= ~IEEE80211_F_PUREG; 2484 2485 /* 2486 * NB: reset only if we're operating on an 11g channel 2487 * and we act as AP or we are a member of an IBSS. 2488 */ 2489 if ((ic->ic_curmode == IEEE80211_MODE_11G || 2490 ic->ic_curmode == IEEE80211_MODE_TURBO_G) && 2491 (ic->ic_opmode == IEEE80211_M_HOSTAP || 2492 ic->ic_opmode == IEEE80211_M_IBSS)) 2493 error = ENETRESET; 2494 break; 2495 case IEEE80211_IOC_MCAST_RATE: 2496 ic->ic_mcast_rate = ireq->i_val & IEEE80211_RATE_VAL; 2497 break; 2498 case IEEE80211_IOC_FRAGTHRESHOLD: 2499 if ((ic->ic_caps & IEEE80211_C_TXFRAG) == 0 && 2500 ireq->i_val != IEEE80211_FRAG_MAX) 2501 return EINVAL; 2502 if (!(IEEE80211_FRAG_MIN <= ireq->i_val && 2503 ireq->i_val <= IEEE80211_FRAG_MAX)) 2504 return EINVAL; 2505 ic->ic_fragthreshold = ireq->i_val; 2506 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2507 break; 2508 case IEEE80211_IOC_BURST: 2509 if (ireq->i_val) { 2510 if ((ic->ic_caps & IEEE80211_C_BURST) == 0) 2511 return EINVAL; 2512 ic->ic_flags |= IEEE80211_F_BURST; 2513 } else 2514 ic->ic_flags &= ~IEEE80211_F_BURST; 2515 error = ENETRESET; /* XXX maybe not for station? */ 2516 break; 2517 case IEEE80211_IOC_RATECTL: 2518 if (ireq->i_val < 0 || ireq->i_val >= IEEE80211_RATECTL_MAX || 2519 ireq->i_val == IEEE80211_RATECTL_NONE) { 2520 error = EINVAL; 2521 break; 2522 } 2523 2524 error = ieee80211_ratectl_change(ic, ireq->i_val); 2525 break; 2526 case IEEE80211_IOC_BMISSTHRESHOLD: 2527 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val && 2528 ireq->i_val <= IEEE80211_HWBMISS_MAX)) 2529 return EINVAL; 2530 ic->ic_bmissthreshold = ireq->i_val; 2531 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0; 2532 break; 2533 default: 2534 error = EINVAL; 2535 break; 2536 } 2537 if (error == ENETRESET && !IS_UP_AUTO(ic)) 2538 error = 0; 2539 return error; 2540 } 2541 2542 int 2543 ieee80211_ioctl(struct ieee80211com *ic, u_long cmd, caddr_t data, 2544 struct ucred *cr) 2545 { 2546 struct ifnet *ifp = ic->ic_ifp; 2547 int error = 0; 2548 struct ifreq *ifr; 2549 2550 switch (cmd) { 2551 case SIOCSIFMEDIA: 2552 case SIOCGIFMEDIA: 2553 error = ifmedia_ioctl(ifp, (struct ifreq *) data, 2554 &ic->ic_media, cmd); 2555 break; 2556 case SIOCG80211: 2557 error = ieee80211_ioctl_get80211(ic, cmd, 2558 (struct ieee80211req *) data, cr); 2559 break; 2560 case SIOCS80211: 2561 error = suser_cred(cr, NULL_CRED_OKAY); 2562 if (error == 0) 2563 error = ieee80211_ioctl_set80211(ic, cmd, 2564 (struct ieee80211req *) data); 2565 break; 2566 case SIOCGIFGENERIC: 2567 error = ieee80211_cfgget(ic, cmd, data, cr); 2568 break; 2569 case SIOCSIFGENERIC: 2570 error = suser_cred(cr, NULL_CRED_OKAY); 2571 if (error) 2572 break; 2573 error = ieee80211_cfgset(ic, cmd, data); 2574 break; 2575 case SIOCG80211STATS: 2576 ifr = (struct ifreq *)data; 2577 copyout(&ic->ic_stats, ifr->ifr_data, sizeof (ic->ic_stats)); 2578 break; 2579 case SIOCSIFMTU: 2580 ifr = (struct ifreq *)data; 2581 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu && 2582 ifr->ifr_mtu <= IEEE80211_MTU_MAX)) 2583 error = EINVAL; 2584 else 2585 ifp->if_mtu = ifr->ifr_mtu; 2586 break; 2587 default: 2588 error = ether_ioctl(ifp, cmd, data); 2589 break; 2590 } 2591 return error; 2592 } 2593