an.c revision 1.29
1/* $NetBSD: an.c,v 1.29 2004/01/28 15:07:52 onoe Exp $ */ 2/* 3 * Copyright (c) 1997, 1998, 1999 4 * Bill Paul <wpaul@ctr.columbia.edu>. 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. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/an/if_an.c,v 1.12 2000/11/13 23:04:12 wpaul Exp $ 34 */ 35 36/* 37 * Aironet 4500/4800 802.11 PCMCIA/ISA/PCI driver for FreeBSD. 38 * 39 * Written by Bill Paul <wpaul@ctr.columbia.edu> 40 * Electrical Engineering Department 41 * Columbia University, New York City 42 */ 43 44/* 45 * Ported to NetBSD from FreeBSD by Atsushi Onoe at the San Diego 46 * IETF meeting. 47 */ 48 49#include <sys/cdefs.h> 50__KERNEL_RCSID(0, "$NetBSD: an.c,v 1.29 2004/01/28 15:07:52 onoe Exp $"); 51 52#include "bpfilter.h" 53 54#include <sys/param.h> 55#include <sys/callout.h> 56#include <sys/systm.h> 57#include <sys/sockio.h> 58#include <sys/mbuf.h> 59#include <sys/kernel.h> 60#include <sys/ucred.h> 61#include <sys/socket.h> 62#include <sys/device.h> 63#include <sys/proc.h> 64#include <sys/md4.h> 65#include <sys/endian.h> 66 67#include <machine/bus.h> 68 69#include <net/if.h> 70#include <net/if_dl.h> 71#include <net/if_ether.h> 72#include <net/if_llc.h> 73#include <net/if_media.h> 74#include <net/if_types.h> 75 76#include <net80211/ieee80211_var.h> 77#include <net80211/ieee80211_compat.h> 78 79#if NBPFILTER > 0 80#include <net/bpf.h> 81#endif 82 83#include <dev/ic/anreg.h> 84#include <dev/ic/anvar.h> 85 86static int an_reset(struct an_softc *); 87static void an_wait(struct an_softc *); 88static int an_init(struct ifnet *); 89static void an_stop(struct ifnet *, int); 90static void an_start(struct ifnet *); 91static void an_watchdog(struct ifnet *); 92static int an_ioctl(struct ifnet *, u_long, caddr_t); 93static int an_media_change(struct ifnet *); 94static void an_media_status(struct ifnet *, struct ifmediareq *); 95 96static int an_set_nwkey(struct an_softc *, struct ieee80211_nwkey *); 97static int an_set_nwkey_wep(struct an_softc *, struct ieee80211_nwkey *); 98static int an_set_nwkey_eap(struct an_softc *, struct ieee80211_nwkey *); 99static int an_get_nwkey(struct an_softc *, struct ieee80211_nwkey *); 100static int an_write_wepkey(struct an_softc *, int, struct an_wepkey *, int); 101 102static void an_rx_intr(struct an_softc *); 103static void an_tx_intr(struct an_softc *, int); 104static void an_linkstat_intr(struct an_softc *); 105 106static int an_cmd(struct an_softc *, int, int); 107static int an_seek_bap(struct an_softc *, int, int); 108static int an_read_bap(struct an_softc *, int, int, void *, int); 109static int an_write_bap(struct an_softc *, int, int, void *, int); 110static int an_mwrite_bap(struct an_softc *, int, int, struct mbuf *, int); 111static int an_read_rid(struct an_softc *, int, void *, int *); 112static int an_write_rid(struct an_softc *, int, void *, int); 113 114static int an_alloc_fid(struct an_softc *, int, int *); 115 116static int an_newstate(struct ieee80211com *, enum ieee80211_state, int); 117 118#ifdef AN_DEBUG 119int an_debug = 0; 120 121#define DPRINTF(X) if (an_debug) printf X 122#define DPRINTF2(X) if (an_debug > 1) printf X 123#else 124#define DPRINTF(X) 125#define DPRINTF2(X) 126#endif 127 128int 129an_attach(struct an_softc *sc) 130{ 131 struct ieee80211com *ic = &sc->sc_ic; 132 struct ifnet *ifp = &ic->ic_if; 133 int i, s; 134 struct an_rid_wepkey *akey; 135 int buflen, kid, rid; 136 int chan, chan_min, chan_max; 137 138 s = splnet(); 139 sc->sc_invalid = 0; 140 141 an_wait(sc); 142 if (an_reset(sc) != 0) { 143 sc->sc_invalid = 1; 144 splx(s); 145 return 1; 146 } 147 148 /* Load factory config */ 149 if (an_cmd(sc, AN_CMD_READCFG, 0) != 0) { 150 splx(s); 151 aprint_error("%s: failed to load config data\n", 152 sc->sc_dev.dv_xname); 153 return 1; 154 } 155 156 /* Read the current configuration */ 157 buflen = sizeof(sc->sc_config); 158 if (an_read_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, &buflen) != 0) { 159 splx(s); 160 aprint_error("%s: read config failed\n", sc->sc_dev.dv_xname); 161 return 1; 162 } 163 164 /* Read the card capabilities */ 165 buflen = sizeof(sc->sc_caps); 166 if (an_read_rid(sc, AN_RID_CAPABILITIES, &sc->sc_caps, &buflen) != 0) { 167 splx(s); 168 aprint_error("%s: read caps failed\n", sc->sc_dev.dv_xname); 169 return 1; 170 } 171 172#ifdef AN_DEBUG 173 if (an_debug) { 174 static const int dumprid[] = { 175 AN_RID_GENCONFIG, AN_RID_CAPABILITIES, AN_RID_SSIDLIST, 176 AN_RID_APLIST, AN_RID_STATUS, AN_RID_ENCAP 177 }; 178 179 for (rid = 0; rid < sizeof(dumprid)/sizeof(dumprid[0]); rid++) { 180 buflen = sizeof(sc->sc_buf); 181 if (an_read_rid(sc, dumprid[rid], &sc->sc_buf, &buflen) 182 != 0) 183 continue; 184 printf("%04x (%d):\n", dumprid[rid], buflen); 185 for (i = 0; i < (buflen + 1) / 2; i++) 186 printf(" %04x", sc->sc_buf.sc_val[i]); 187 printf("\n"); 188 } 189 } 190#endif 191 192 /* Read WEP settings from persistent memory */ 193 akey = &sc->sc_buf.sc_wepkey; 194 buflen = sizeof(struct an_rid_wepkey); 195 rid = AN_RID_WEP_VOLATILE; /* first persistent key */ 196 while (an_read_rid(sc, rid, akey, &buflen) == 0) { 197 kid = le16toh(akey->an_key_index); 198 DPRINTF(("an_attach: wep rid=0x%x len=%d(%d) index=0x%04x " 199 "mac[0]=%02x keylen=%d\n", 200 rid, buflen, sizeof(*akey), kid, 201 akey->an_mac_addr[0], le16toh(akey->an_key_len))); 202 if (kid == 0xffff) { 203 sc->sc_tx_perskey = akey->an_mac_addr[0]; 204 sc->sc_tx_key = -1; 205 break; 206 } 207 if (kid >= IEEE80211_WEP_NKID) 208 break; 209 sc->sc_perskeylen[kid] = le16toh(akey->an_key_len); 210 sc->sc_wepkeys[kid].an_wep_keylen = -1; 211 rid = AN_RID_WEP_PERSISTENT; /* for next key */ 212 buflen = sizeof(struct an_rid_wepkey); 213 } 214 215 aprint_normal("%s: %s %s (firmware %s)\n", sc->sc_dev.dv_xname, 216 sc->sc_caps.an_manufname, sc->sc_caps.an_prodname, 217 sc->sc_caps.an_prodvers); 218 219 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 220 221 ifp->if_softc = sc; 222 ifp->if_flags = IFF_BROADCAST | IFF_NOTRAILERS | IFF_SIMPLEX | 223 IFF_MULTICAST | IFF_ALLMULTI; 224 ifp->if_ioctl = an_ioctl; 225 ifp->if_start = an_start; 226 ifp->if_init = an_init; 227 ifp->if_stop = an_stop; 228 ifp->if_watchdog = an_watchdog; 229 IFQ_SET_READY(&ifp->if_snd); 230 231 ic->ic_phytype = IEEE80211_T_DS; 232 ic->ic_opmode = IEEE80211_M_STA; 233 ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_PMGT | IEEE80211_C_IBSS | 234 IEEE80211_C_MONITOR; 235 ic->ic_state = IEEE80211_S_INIT; 236 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_caps.an_oemaddr); 237 238 switch (le16toh(sc->sc_caps.an_regdomain)) { 239 default: 240 case AN_REGDOMAIN_USA: 241 case AN_REGDOMAIN_CANADA: 242 chan_min = 1; chan_max = 11; break; 243 case AN_REGDOMAIN_EUROPE: 244 case AN_REGDOMAIN_AUSTRALIA: 245 chan_min = 1; chan_max = 13; break; 246 case AN_REGDOMAIN_JAPAN: 247 chan_min = 14; chan_max = 14; break; 248 case AN_REGDOMAIN_SPAIN: 249 chan_min = 10; chan_max = 11; break; 250 case AN_REGDOMAIN_FRANCE: 251 chan_min = 10; chan_max = 13; break; 252 case AN_REGDOMAIN_JAPANWIDE: 253 chan_min = 1; chan_max = 14; break; 254 } 255 256 for (chan = chan_min; chan <= chan_max; chan++) { 257 ic->ic_channels[chan].ic_freq = 258 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 259 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; 260 } 261 ic->ic_ibss_chan = &ic->ic_channels[chan_min]; 262 263 aprint_normal("%s: 802.11 address: %s, channel: %d-%d\n", 264 ifp->if_xname, ether_sprintf(ic->ic_myaddr), chan_min, chan_max); 265 266 /* Find supported rate */ 267 for (i = 0; i < sizeof(sc->sc_caps.an_rates); i++) { 268 if (sc->sc_caps.an_rates[i] == 0) 269 continue; 270 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 271 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates++] = 272 sc->sc_caps.an_rates[i]; 273 } 274 275 /* 276 * Call MI attach routine. 277 */ 278 if_attach(ifp); 279 ieee80211_ifattach(ifp); 280 281 sc->sc_newstate = ic->ic_newstate; 282 ic->ic_newstate = an_newstate; 283 284 ieee80211_media_init(ifp, an_media_change, an_media_status); 285 sc->sc_attached = 1; 286 splx(s); 287 288 return 0; 289} 290 291int 292an_detach(struct an_softc *sc) 293{ 294 struct ifnet *ifp = &sc->sc_ic.ic_if; 295 int s; 296 297 if (!sc->sc_attached) 298 return 0; 299 300 s = splnet(); 301 sc->sc_invalid = 1; 302 an_stop(ifp, 1); 303 ifmedia_delete_instance(&sc->sc_ic.ic_media, IFM_INST_ANY); 304 ieee80211_ifdetach(ifp); 305 if_detach(ifp); 306 splx(s); 307 return 0; 308} 309 310int 311an_activate(struct device *self, enum devact act) 312{ 313 struct an_softc *sc = (struct an_softc *)self; 314 int s, error = 0; 315 316 s = splnet(); 317 switch (act) { 318 case DVACT_ACTIVATE: 319 error = EOPNOTSUPP; 320 break; 321 322 case DVACT_DEACTIVATE: 323 sc->sc_invalid = 1; 324 if_deactivate(&sc->sc_ic.ic_if); 325 break; 326 } 327 splx(s); 328 329 return error; 330} 331 332void 333an_power(int why, void *arg) 334{ 335 int s; 336 struct an_softc *sc = arg; 337 struct ifnet *ifp = &sc->sc_ic.ic_if; 338 339 s = splnet(); 340 switch (why) { 341 case PWR_SUSPEND: 342 case PWR_STANDBY: 343 an_stop(ifp, 1); 344 break; 345 case PWR_RESUME: 346 if (ifp->if_flags & IFF_UP) { 347 an_init(ifp); 348 (void)an_intr(sc); 349 } 350 break; 351 case PWR_SOFTSUSPEND: 352 case PWR_SOFTSTANDBY: 353 case PWR_SOFTRESUME: 354 break; 355 } 356 splx(s); 357} 358 359void 360an_shutdown(struct an_softc *sc) 361{ 362 363 if (sc->sc_attached) 364 an_stop(&sc->sc_ic.ic_if, 1); 365} 366 367int 368an_intr(void *arg) 369{ 370 struct an_softc *sc = arg; 371 struct ifnet *ifp = &sc->sc_ic.ic_if; 372 int i; 373 u_int16_t status; 374 375 if (!sc->sc_enabled || sc->sc_invalid || 376 (sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || 377 (ifp->if_flags & IFF_RUNNING) == 0) 378 return 0; 379 380 if ((ifp->if_flags & IFF_UP) == 0) { 381 CSR_WRITE_2(sc, AN_INT_EN, 0); 382 CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); 383 return 1; 384 } 385 386 /* maximum 10 loops per interrupt */ 387 for (i = 0; i < 10; i++) { 388 if (!sc->sc_enabled || sc->sc_invalid) 389 return 1; 390 if (CSR_READ_2(sc, AN_SW0) != AN_MAGIC) { 391 DPRINTF(("an_intr: magic number changed: %x\n", 392 CSR_READ_2(sc, AN_SW0))); 393 sc->sc_invalid = 1; 394 return 1; 395 } 396 status = CSR_READ_2(sc, AN_EVENT_STAT); 397 CSR_WRITE_2(sc, AN_EVENT_ACK, status & ~(AN_INTRS)); 398 if ((status & AN_INTRS) == 0) 399 break; 400 401 if (status & AN_EV_RX) 402 an_rx_intr(sc); 403 404 if (status & (AN_EV_TX | AN_EV_TX_EXC)) 405 an_tx_intr(sc, status); 406 407 if (status & AN_EV_LINKSTAT) 408 an_linkstat_intr(sc); 409 410 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 411 sc->sc_ic.ic_state == IEEE80211_S_RUN && 412 !IFQ_IS_EMPTY(&ifp->if_snd)) 413 an_start(ifp); 414 } 415 416 return 1; 417} 418 419static int 420an_init(struct ifnet *ifp) 421{ 422 struct an_softc *sc = ifp->if_softc; 423 struct ieee80211com *ic = &sc->sc_ic; 424 int i, error, fid; 425 426 DPRINTF(("an_init: enabled %d\n", sc->sc_enabled)); 427 if (!sc->sc_enabled) { 428 if (sc->sc_enable) 429 (*sc->sc_enable)(sc); 430 an_wait(sc); 431 sc->sc_enabled = 1; 432 } else { 433 an_stop(ifp, 0); 434 if ((error = an_reset(sc)) != 0) { 435 printf("%s: failed to reset\n", ifp->if_xname); 436 an_stop(ifp, 1); 437 return error; 438 } 439 } 440 CSR_WRITE_2(sc, AN_SW0, AN_MAGIC); 441 442 /* Allocate the TX buffers */ 443 for (i = 0; i < AN_TX_RING_CNT; i++) { 444 if ((error = an_alloc_fid(sc, AN_TX_MAX_LEN, &fid)) != 0) { 445 printf("%s: failed to allocate nic memory\n", 446 ifp->if_xname); 447 an_stop(ifp, 1); 448 return error; 449 } 450 DPRINTF2(("an_init: txbuf %d allocated %x\n", i, fid)); 451 sc->sc_txd[i].d_fid = fid; 452 sc->sc_txd[i].d_inuse = 0; 453 } 454 sc->sc_txcur = sc->sc_txnext = 0; 455 456 IEEE80211_ADDR_COPY(sc->sc_config.an_macaddr, ic->ic_myaddr); 457 sc->sc_config.an_scanmode = htole16(AN_SCANMODE_ACTIVE); 458 sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_OPEN); /*XXX*/ 459 if (ic->ic_flags & IEEE80211_F_WEPON) { 460 sc->sc_config.an_authtype |= 461 htole16(AN_AUTHTYPE_PRIVACY_IN_USE); 462 if (sc->sc_use_leap) 463 sc->sc_config.an_authtype |= 464 htole16(AN_AUTHTYPE_LEAP); 465 } 466 sc->sc_config.an_listen_interval = htole16(ic->ic_lintval); 467 sc->sc_config.an_beacon_period = htole16(ic->ic_lintval); 468 if (ic->ic_flags & IEEE80211_F_PMGTON) 469 sc->sc_config.an_psave_mode = htole16(AN_PSAVE_PSP); 470 else 471 sc->sc_config.an_psave_mode = htole16(AN_PSAVE_CAM); 472 sc->sc_config.an_ds_channel = 473 htole16(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 474 475 switch (ic->ic_opmode) { 476 case IEEE80211_M_STA: 477 sc->sc_config.an_opmode = 478 htole16(AN_OPMODE_INFRASTRUCTURE_STATION); 479 sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); 480 break; 481 case IEEE80211_M_IBSS: 482 sc->sc_config.an_opmode = htole16(AN_OPMODE_IBSS_ADHOC); 483 sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); 484 break; 485 case IEEE80211_M_MONITOR: 486 sc->sc_config.an_opmode = 487 htole16(AN_OPMODE_INFRASTRUCTURE_STATION); 488 sc->sc_config.an_rxmode = 489 htole16(AN_RXMODE_80211_MONITOR_ANYBSS); 490 sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_NONE); 491 if (ic->ic_flags & IEEE80211_F_WEPON) 492 sc->sc_config.an_authtype |= 493 htole16(AN_AUTHTYPE_PRIVACY_IN_USE | 494 AN_AUTHTYPE_ALLOW_UNENCRYPTED); 495 break; 496 default: 497 printf("%s: bad opmode %d\n", ifp->if_xname, ic->ic_opmode); 498 an_stop(ifp, 1); 499 return EIO; 500 } 501 sc->sc_config.an_rxmode |= htole16(AN_RXMODE_NO_8023_HEADER); 502 503 /* Set the ssid list */ 504 memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_ssidlist)); 505 sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid_len = 506 htole16(ic->ic_des_esslen); 507 if (ic->ic_des_esslen) 508 memcpy(sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid, 509 ic->ic_des_essid, ic->ic_des_esslen); 510 if (an_write_rid(sc, AN_RID_SSIDLIST, &sc->sc_buf, 511 sizeof(sc->sc_buf.sc_ssidlist)) != 0) { 512 printf("%s: failed to write ssid list\n", ifp->if_xname); 513 an_stop(ifp, 1); 514 return error; 515 } 516 517 /* Set the AP list */ 518 memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_aplist)); 519 (void)an_write_rid(sc, AN_RID_APLIST, &sc->sc_buf, 520 sizeof(sc->sc_buf.sc_aplist)); 521 522 /* Set the encapsulation */ 523 for (i = 0; i < AN_ENCAP_NENTS; i++) { 524 sc->sc_buf.sc_encap.an_entry[i].an_ethertype = htole16(0); 525 sc->sc_buf.sc_encap.an_entry[i].an_action = 526 htole16(AN_RXENCAP_RFC1024 | AN_TXENCAP_RFC1024); 527 } 528 (void)an_write_rid(sc, AN_RID_ENCAP, &sc->sc_buf, 529 sizeof(sc->sc_buf.sc_encap)); 530 531 /* Set the WEP Keys */ 532 if (ic->ic_flags & IEEE80211_F_WEPON) 533 an_write_wepkey(sc, AN_RID_WEP_VOLATILE, sc->sc_wepkeys, 534 sc->sc_tx_key); 535 536 /* Set the configuration */ 537#ifdef AN_DEBUG 538 if (an_debug) { 539 printf("write config:\n"); 540 for (i = 0; i < sizeof(sc->sc_config) / 2; i++) 541 printf(" %04x", ((u_int16_t *)&sc->sc_config)[i]); 542 printf("\n"); 543 } 544#endif 545 if (an_write_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, 546 sizeof(sc->sc_config)) != 0) { 547 printf("%s: failed to write config\n", ifp->if_xname); 548 an_stop(ifp, 1); 549 return error; 550 } 551 552 /* Enable the MAC */ 553 if (an_cmd(sc, AN_CMD_ENABLE, 0)) { 554 printf("%s: failed to enable MAC\n", sc->sc_dev.dv_xname); 555 an_stop(ifp, 1); 556 return ENXIO; 557 } 558 if (ifp->if_flags & IFF_PROMISC) 559 an_cmd(sc, AN_CMD_SET_MODE, 0xffff); 560 561 ifp->if_flags |= IFF_RUNNING; 562 ifp->if_flags &= ~IFF_OACTIVE; 563 ic->ic_state = IEEE80211_S_INIT; 564 if (ic->ic_opmode == IEEE80211_M_MONITOR) 565 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 566 567 /* enable interrupts */ 568 CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); 569 return 0; 570} 571 572void 573an_stop(struct ifnet *ifp, int disable) 574{ 575 struct an_softc *sc = ifp->if_softc; 576 int i, s; 577 578 if (!sc->sc_enabled) 579 return; 580 581 DPRINTF(("an_stop: disable %d\n", disable)); 582 583 s = splnet(); 584 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 585 if (!sc->sc_invalid) { 586 an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0); 587 CSR_WRITE_2(sc, AN_INT_EN, 0); 588 an_cmd(sc, AN_CMD_DISABLE, 0); 589 590 for (i = 0; i < AN_TX_RING_CNT; i++) 591 an_cmd(sc, AN_CMD_DEALLOC_MEM, sc->sc_txd[i].d_fid); 592 } 593 594 sc->sc_tx_timer = 0; 595 ifp->if_timer = 0; 596 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 597 598 if (disable) { 599 if (sc->sc_disable) 600 (*sc->sc_disable)(sc); 601 sc->sc_enabled = 0; 602 } 603 splx(s); 604} 605 606static void 607an_start(struct ifnet *ifp) 608{ 609 struct an_softc *sc = (struct an_softc *)ifp->if_softc; 610 struct ieee80211com *ic = &sc->sc_ic; 611 struct ieee80211_node *ni; 612 struct ieee80211_frame *wh; 613 struct an_txframe frmhdr; 614 struct mbuf *m; 615 u_int16_t len; 616 int cur, fid; 617 618 if (!sc->sc_enabled || sc->sc_invalid) { 619 DPRINTF(("an_start: noop: enabled %d invalid %d\n", 620 sc->sc_enabled, sc->sc_invalid)); 621 return; 622 } 623 624 memset(&frmhdr, 0, sizeof(frmhdr)); 625 cur = sc->sc_txnext; 626 for (;;) { 627 if (ic->ic_state != IEEE80211_S_RUN) { 628 DPRINTF(("an_start: not running %d\n", ic->ic_state)); 629 break; 630 } 631 IFQ_POLL(&ifp->if_snd, m); 632 if (m == NULL) { 633 DPRINTF2(("an_start: no pending mbuf\n")); 634 break; 635 } 636 if (sc->sc_txd[cur].d_inuse) { 637 DPRINTF2(("an_start: %x/%d busy\n", 638 sc->sc_txd[cur].d_fid, cur)); 639 ifp->if_flags |= IFF_OACTIVE; 640 break; 641 } 642 IFQ_DEQUEUE(&ifp->if_snd, m); 643 ifp->if_opackets++; 644#if NBPFILTER > 0 645 if (ifp->if_bpf) 646 bpf_mtap(ifp->if_bpf, m); 647#endif 648 if ((m = ieee80211_encap(ifp, m, &ni)) == NULL) { 649 ifp->if_oerrors++; 650 continue; 651 } 652#if NBPFILTER > 0 653 if (ic->ic_rawbpf) 654 bpf_mtap(ic->ic_rawbpf, m); 655#endif 656 657 wh = mtod(m, struct ieee80211_frame *); 658 if (ic->ic_flags & IEEE80211_F_WEPON) 659 wh->i_fc[1] |= IEEE80211_FC1_WEP; 660 m_copydata(m, 0, sizeof(struct ieee80211_frame), 661 (caddr_t)&frmhdr.an_whdr); 662 663 /* insert payload length in front of llc/snap */ 664 len = htons(m->m_pkthdr.len - sizeof(struct ieee80211_frame)); 665 m_adj(m, sizeof(struct ieee80211_frame) - sizeof(len)); 666 if (mtod(m, u_long) & 0x01) 667 memcpy(mtod(m, caddr_t), &len, sizeof(len)); 668 else 669 *mtod(m, u_int16_t *) = len; 670 671 /* 672 * XXX Aironet firmware apparently convert the packet 673 * with longer than 1500 bytes in length into LLC/SNAP. 674 * If we have 1500 bytes in ethernet payload, it is 675 * 1508 bytes including LLC/SNAP and will be inserted 676 * additional LLC/SNAP header with 1501-1508 in its 677 * ethertype !! 678 * So we skip LLC/SNAP header and force firmware to 679 * convert it to LLC/SNAP again. 680 */ 681 m_adj(m, sizeof(struct llc)); 682 683 frmhdr.an_tx_ctl = htole16(AN_TXCTL_80211); 684 frmhdr.an_tx_payload_len = htole16(m->m_pkthdr.len); 685 frmhdr.an_gaplen = htole16(AN_TXGAP_802_11); 686 687 if (ic->ic_fixed_rate != -1) 688 frmhdr.an_tx_rate = 689 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 690 ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 691 else 692 frmhdr.an_tx_rate = 0; 693 694#ifdef AN_DEBUG 695 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == 696 (IFF_DEBUG|IFF_LINK2)) { 697 ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, 698 sizeof(struct ieee80211_frame), -1, 0); 699 printf(" txctl 0x%x plen %u\n", 700 le16toh(frmhdr.an_tx_ctl), 701 le16toh(frmhdr.an_tx_payload_len)); 702 } 703#endif 704 if (sizeof(frmhdr) + AN_TXGAP_802_11 + sizeof(len) + 705 m->m_pkthdr.len > AN_TX_MAX_LEN) { 706 ifp->if_oerrors++; 707 m_freem(m); 708 continue; 709 } 710 711 fid = sc->sc_txd[cur].d_fid; 712 if (an_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 713 ifp->if_oerrors++; 714 m_freem(m); 715 continue; 716 } 717 /* dummy write to avoid seek. */ 718 an_write_bap(sc, fid, -1, &frmhdr, AN_TXGAP_802_11); 719 an_mwrite_bap(sc, fid, -1, m, m->m_pkthdr.len); 720 m_freem(m); 721 722 DPRINTF2(("an_start: send %d byte via %x/%d\n", 723 ntohs(len) + sizeof(struct ieee80211_frame), 724 fid, cur)); 725 sc->sc_txd[cur].d_inuse = 1; 726 if (an_cmd(sc, AN_CMD_TX, fid)) { 727 printf("%s: xmit failed\n", ifp->if_xname); 728 sc->sc_txd[cur].d_inuse = 0; 729 continue; 730 } 731 sc->sc_tx_timer = 5; 732 ifp->if_timer = 1; 733 AN_INC(cur, AN_TX_RING_CNT); 734 sc->sc_txnext = cur; 735 } 736} 737 738static int 739an_reset(struct an_softc *sc) 740{ 741 742 DPRINTF(("an_reset\n")); 743 744 if (!sc->sc_enabled) 745 return ENXIO; 746 747 an_cmd(sc, AN_CMD_ENABLE, 0); 748 an_cmd(sc, AN_CMD_FW_RESTART, 0); 749 an_cmd(sc, AN_CMD_NOOP2, 0); 750 751 if (an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0) == ETIMEDOUT) { 752 printf("%s: reset failed\n", sc->sc_dev.dv_xname); 753 return ETIMEDOUT; 754 } 755 756 an_cmd(sc, AN_CMD_DISABLE, 0); 757 return 0; 758} 759 760static void 761an_watchdog(struct ifnet *ifp) 762{ 763 struct an_softc *sc = ifp->if_softc; 764 765 if (!sc->sc_enabled) 766 return; 767 768 if (sc->sc_tx_timer) { 769 if (--sc->sc_tx_timer == 0) { 770 printf("%s: device timeout\n", ifp->if_xname); 771 ifp->if_oerrors++; 772 an_init(ifp); 773 return; 774 } 775 ifp->if_timer = 1; 776 } 777 ieee80211_watchdog(ifp); 778} 779 780static int 781an_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 782{ 783 struct an_softc *sc = ifp->if_softc; 784 int s, error = 0; 785 786 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0) 787 return ENXIO; 788 789 s = splnet(); 790 791 switch (command) { 792 case SIOCSIFFLAGS: 793 if (ifp->if_flags & IFF_UP) { 794 if (sc->sc_enabled) { 795 /* 796 * To avoid rescanning another access point, 797 * do not call an_init() here. Instead, only 798 * reflect promisc mode settings. 799 */ 800 error = an_cmd(sc, AN_CMD_SET_MODE, 801 (ifp->if_flags & IFF_PROMISC) ? 0xffff : 0); 802 } else 803 error = an_init(ifp); 804 } else if (sc->sc_enabled) 805 an_stop(ifp, 1); 806 break; 807 case SIOCADDMULTI: 808 case SIOCDELMULTI: 809 error = ether_ioctl(ifp, command, data); 810 if (error == ENETRESET) { 811 /* we don't have multicast filter. */ 812 error = 0; 813 } 814 break; 815 case SIOCS80211NWKEY: 816 error = an_set_nwkey(sc, (struct ieee80211_nwkey *)data); 817 break; 818 case SIOCG80211NWKEY: 819 error = an_get_nwkey(sc, (struct ieee80211_nwkey *)data); 820 break; 821 default: 822 error = ieee80211_ioctl(ifp, command, data); 823 break; 824 } 825 if (error == ENETRESET) { 826 if (sc->sc_enabled) 827 error = an_init(ifp); 828 else 829 error = 0; 830 } 831 splx(s); 832 return error; 833} 834 835/* TBD factor with ieee80211_media_change */ 836static int 837an_media_change(struct ifnet *ifp) 838{ 839 struct an_softc *sc = ifp->if_softc; 840 struct ieee80211com *ic = &sc->sc_ic; 841 struct ifmedia_entry *ime; 842 enum ieee80211_opmode newmode; 843 int i, rate, error = 0; 844 845 ime = ic->ic_media.ifm_cur; 846 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 847 i = -1; 848 } else { 849 struct ieee80211_rateset *rs = 850 &ic->ic_sup_rates[IEEE80211_MODE_11B]; 851 rate = ieee80211_media2rate(ime->ifm_media); 852 if (rate == 0) 853 return EINVAL; 854 for (i = 0; i < rs->rs_nrates; i++) { 855 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 856 break; 857 } 858 if (i == rs->rs_nrates) 859 return EINVAL; 860 } 861 if (ic->ic_fixed_rate != i) { 862 ic->ic_fixed_rate = i; 863 error = ENETRESET; 864 } 865 866 if (ime->ifm_media & IFM_IEEE80211_ADHOC) 867 newmode = IEEE80211_M_IBSS; 868 else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 869 newmode = IEEE80211_M_HOSTAP; 870 else if (ime->ifm_media & IFM_IEEE80211_MONITOR) 871 newmode = IEEE80211_M_MONITOR; 872 else 873 newmode = IEEE80211_M_STA; 874 if (ic->ic_opmode != newmode) { 875 ic->ic_opmode = newmode; 876 error = ENETRESET; 877 } 878 if (error == ENETRESET) { 879 if (sc->sc_enabled) 880 error = an_init(ifp); 881 else 882 error = 0; 883 } 884 ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); 885 886 return error; 887} 888 889static void 890an_media_status(struct ifnet *ifp, struct ifmediareq *imr) 891{ 892 struct an_softc *sc = ifp->if_softc; 893 struct ieee80211com *ic = &sc->sc_ic; 894 int rate, buflen; 895 896 if (sc->sc_enabled == 0) { 897 imr->ifm_active = IFM_IEEE80211 | IFM_NONE; 898 imr->ifm_status = 0; 899 return; 900 } 901 902 imr->ifm_status = IFM_AVALID; 903 imr->ifm_active = IFM_IEEE80211; 904 if (ic->ic_state == IEEE80211_S_RUN) 905 imr->ifm_status |= IFM_ACTIVE; 906 buflen = sizeof(sc->sc_buf); 907 if (ic->ic_fixed_rate != -1) 908 rate = ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 909 ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 910 else if (an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen) != 0) 911 rate = 0; 912 else 913 rate = le16toh(sc->sc_buf.sc_status.an_current_tx_rate); 914 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 915 switch (ic->ic_opmode) { 916 case IEEE80211_M_STA: 917 break; 918 case IEEE80211_M_IBSS: 919 imr->ifm_active |= IFM_IEEE80211_ADHOC; 920 break; 921 case IEEE80211_M_HOSTAP: 922 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 923 break; 924 case IEEE80211_M_MONITOR: 925 imr->ifm_active |= IFM_IEEE80211_MONITOR; 926 break; 927 default: 928 break; 929 } 930} 931 932static int 933an_set_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 934{ 935 int error; 936 struct ieee80211com *ic = &sc->sc_ic; 937 u_int16_t prevauth; 938 939 error = 0; 940 prevauth = sc->sc_config.an_authtype; 941 942 switch (nwkey->i_wepon) { 943 case IEEE80211_NWKEY_OPEN: 944 sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN; 945 ic->ic_flags &= ~IEEE80211_F_WEPON; 946 break; 947 948 case IEEE80211_NWKEY_WEP: 949 case IEEE80211_NWKEY_WEP | IEEE80211_NWKEY_PERSIST: 950 error = an_set_nwkey_wep(sc, nwkey); 951 if (error == 0 || error == ENETRESET) { 952 sc->sc_config.an_authtype = 953 AN_AUTHTYPE_OPEN | AN_AUTHTYPE_PRIVACY_IN_USE; 954 ic->ic_flags |= IEEE80211_F_WEPON; 955 } 956 break; 957 958 case IEEE80211_NWKEY_EAP: 959 error = an_set_nwkey_eap(sc, nwkey); 960 if (error == 0 || error == ENETRESET) { 961 sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN | 962 AN_AUTHTYPE_PRIVACY_IN_USE | AN_AUTHTYPE_LEAP; 963 ic->ic_flags |= IEEE80211_F_WEPON; 964 } 965 break; 966 default: 967 error = EINVAL; 968 break; 969 } 970 if (error == 0 && prevauth != sc->sc_config.an_authtype) 971 error = ENETRESET; 972 return error; 973} 974 975static int 976an_set_nwkey_wep(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 977{ 978 int i, txkey, anysetkey, needreset, error; 979 struct an_wepkey keys[IEEE80211_WEP_NKID]; 980 981 error = 0; 982 memset(keys, 0, sizeof(keys)); 983 anysetkey = needreset = 0; 984 985 /* load argument and sanity check */ 986 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 987 keys[i].an_wep_keylen = nwkey->i_key[i].i_keylen; 988 if (keys[i].an_wep_keylen < 0) 989 continue; 990 if (keys[i].an_wep_keylen != 0 && 991 keys[i].an_wep_keylen < IEEE80211_WEP_KEYLEN) 992 return EINVAL; 993 if (keys[i].an_wep_keylen > sizeof(keys[i].an_wep_key)) 994 return EINVAL; 995 if ((error = copyin(nwkey->i_key[i].i_keydat, 996 keys[i].an_wep_key, keys[i].an_wep_keylen)) != 0) 997 return error; 998 anysetkey++; 999 } 1000 txkey = nwkey->i_defkid - 1; 1001 if (txkey >= 0) { 1002 if (txkey >= IEEE80211_WEP_NKID) 1003 return EINVAL; 1004 /* default key must have a valid value */ 1005 if (keys[txkey].an_wep_keylen == 0 || 1006 (keys[txkey].an_wep_keylen < 0 && 1007 sc->sc_perskeylen[txkey] == 0)) 1008 return EINVAL; 1009 anysetkey++; 1010 } 1011 DPRINTF(("an_set_nwkey_wep: %s: %sold(%d:%d,%d,%d,%d) " 1012 "pers(%d:%d,%d,%d,%d) new(%d:%d,%d,%d,%d)\n", 1013 sc->sc_dev.dv_xname, 1014 ((nwkey->i_wepon & IEEE80211_NWKEY_PERSIST) ? "persist: " : ""), 1015 sc->sc_tx_key, 1016 sc->sc_wepkeys[0].an_wep_keylen, sc->sc_wepkeys[1].an_wep_keylen, 1017 sc->sc_wepkeys[2].an_wep_keylen, sc->sc_wepkeys[3].an_wep_keylen, 1018 sc->sc_tx_perskey, 1019 sc->sc_perskeylen[0], sc->sc_perskeylen[1], 1020 sc->sc_perskeylen[2], sc->sc_perskeylen[3], 1021 txkey, 1022 keys[0].an_wep_keylen, keys[1].an_wep_keylen, 1023 keys[2].an_wep_keylen, keys[3].an_wep_keylen)); 1024 if (!(nwkey->i_wepon & IEEE80211_NWKEY_PERSIST)) { 1025 /* set temporary keys */ 1026 sc->sc_tx_key = txkey; 1027 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1028 if (keys[i].an_wep_keylen < 0) 1029 continue; 1030 memcpy(&sc->sc_wepkeys[i], &keys[i], sizeof(keys[i])); 1031 } 1032 } else { 1033 /* set persist keys */ 1034 if (anysetkey) { 1035 /* prepare to write nvram */ 1036 if (!sc->sc_enabled) { 1037 if (sc->sc_enable) 1038 (*sc->sc_enable)(sc); 1039 an_wait(sc); 1040 sc->sc_enabled = 1; 1041 error = an_write_wepkey(sc, 1042 AN_RID_WEP_PERSISTENT, keys, txkey); 1043 if (sc->sc_disable) 1044 (*sc->sc_disable)(sc); 1045 sc->sc_enabled = 0; 1046 } else { 1047 an_cmd(sc, AN_CMD_DISABLE, 0); 1048 error = an_write_wepkey(sc, 1049 AN_RID_WEP_PERSISTENT, keys, txkey); 1050 an_cmd(sc, AN_CMD_ENABLE, 0); 1051 } 1052 if (error) 1053 return error; 1054 } 1055 if (txkey >= 0) 1056 sc->sc_tx_perskey = txkey; 1057 if (sc->sc_tx_key >= 0) { 1058 sc->sc_tx_key = -1; 1059 needreset++; 1060 } 1061 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1062 if (sc->sc_wepkeys[i].an_wep_keylen >= 0) { 1063 memset(&sc->sc_wepkeys[i].an_wep_key, 0, 1064 sizeof(sc->sc_wepkeys[i].an_wep_key)); 1065 sc->sc_wepkeys[i].an_wep_keylen = -1; 1066 needreset++; 1067 } 1068 if (keys[i].an_wep_keylen >= 0) 1069 sc->sc_perskeylen[i] = keys[i].an_wep_keylen; 1070 } 1071 } 1072 if (needreset) { 1073 /* firmware restart to reload persistent key */ 1074 an_reset(sc); 1075 } 1076 if (anysetkey || needreset) 1077 error = ENETRESET; 1078 return error; 1079} 1080 1081static int 1082an_set_nwkey_eap(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1083{ 1084 int i, error, len; 1085 struct ifnet *ifp = &sc->sc_ic.ic_if; 1086 struct an_rid_leapkey *key; 1087 u_int16_t unibuf[sizeof(key->an_key)]; 1088 static const int leap_rid[] = { AN_RID_LEAP_PASS, AN_RID_LEAP_USER }; 1089 MD4_CTX ctx; 1090 1091 error = 0; 1092 1093 if (nwkey->i_key[0].i_keydat == NULL && 1094 nwkey->i_key[1].i_keydat == NULL) 1095 return 0; 1096 if (!sc->sc_enabled) 1097 return ENXIO; 1098 an_cmd(sc, AN_CMD_DISABLE, 0); 1099 key = &sc->sc_buf.sc_leapkey; 1100 for (i = 0; i < 2; i++) { 1101 if (nwkey->i_key[i].i_keydat == NULL) 1102 continue; 1103 len = nwkey->i_key[i].i_keylen; 1104 if (len > sizeof(key->an_key)) 1105 return EINVAL; 1106 memset(key, 0, sizeof(*key)); 1107 key->an_key_len = htole16(len); 1108 if ((error = copyin(nwkey->i_key[i].i_keydat, key->an_key, 1109 len)) != 0) 1110 return error; 1111 if (i == 1) { 1112 /* 1113 * Cisco seems to use PasswordHash and PasswordHashHash 1114 * in RFC-2759 (MS-CHAP-V2). 1115 */ 1116 memset(unibuf, 0, sizeof(unibuf)); 1117 /* XXX: convert password to unicode */ 1118 for (i = 0; i < len; i++) 1119 unibuf[i] = key->an_key[i]; 1120 /* set PasswordHash */ 1121 MD4Init(&ctx); 1122 MD4Update(&ctx, (u_int8_t *)unibuf, len * 2); 1123 MD4Final(key->an_key, &ctx); 1124 /* set PasswordHashHash */ 1125 MD4Init(&ctx); 1126 MD4Update(&ctx, key->an_key, 16); 1127 MD4Final(key->an_key + 16, &ctx); 1128 key->an_key_len = htole16(32); 1129 } 1130 if ((error = an_write_rid(sc, leap_rid[i], key, 1131 sizeof(*key))) != 0) { 1132 printf("%s: LEAP set failed\n", ifp->if_xname); 1133 return error; 1134 } 1135 } 1136 error = an_cmd(sc, AN_CMD_ENABLE, 0); 1137 if (error) 1138 printf("%s: an_set_nwkey: failed to enable MAC\n", 1139 ifp->if_xname); 1140 else 1141 error = ENETRESET; 1142 return error; 1143} 1144 1145static int 1146an_get_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1147{ 1148 int i, error; 1149 1150 error = 0; 1151 if (sc->sc_config.an_authtype & AN_AUTHTYPE_LEAP) 1152 nwkey->i_wepon = IEEE80211_NWKEY_EAP; 1153 else if (sc->sc_config.an_authtype & AN_AUTHTYPE_PRIVACY_IN_USE) 1154 nwkey->i_wepon = IEEE80211_NWKEY_WEP; 1155 else 1156 nwkey->i_wepon = IEEE80211_NWKEY_OPEN; 1157 if (sc->sc_tx_key == -1) 1158 nwkey->i_defkid = sc->sc_tx_perskey + 1; 1159 else 1160 nwkey->i_defkid = sc->sc_tx_key + 1; 1161 if (nwkey->i_key[0].i_keydat == NULL) 1162 return 0; 1163 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1164 if (nwkey->i_key[i].i_keydat == NULL) 1165 continue; 1166 /* do not show any keys to non-root user */ 1167 if ((error = suser(curproc->p_ucred, &curproc->p_acflag)) != 0) 1168 break; 1169 nwkey->i_key[i].i_keylen = sc->sc_wepkeys[i].an_wep_keylen; 1170 if (nwkey->i_key[i].i_keylen < 0) { 1171 if (sc->sc_perskeylen[i] == 0) 1172 nwkey->i_key[i].i_keylen = 0; 1173 continue; 1174 } 1175 if ((error = copyout(sc->sc_wepkeys[i].an_wep_key, 1176 nwkey->i_key[i].i_keydat, 1177 sc->sc_wepkeys[i].an_wep_keylen)) != 0) 1178 break; 1179 } 1180 return error; 1181} 1182 1183static int 1184an_write_wepkey(struct an_softc *sc, int type, struct an_wepkey *keys, int kid) 1185{ 1186 int i, error; 1187 struct an_rid_wepkey *akey; 1188 1189 error = 0; 1190 akey = &sc->sc_buf.sc_wepkey; 1191 memset(akey, 0, sizeof(struct an_rid_wepkey)); 1192 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1193 if (keys[i].an_wep_keylen < 0 || 1194 keys[i].an_wep_keylen > sizeof(akey->an_key)) 1195 continue; 1196 akey->an_key_len = htole16(keys[i].an_wep_keylen); 1197 akey->an_key_index = htole16(i); 1198 akey->an_mac_addr[0] = 1; /* default mac */ 1199 memcpy(akey->an_key, keys[i].an_wep_key, keys[i].an_wep_keylen); 1200 if ((error = an_write_rid(sc, type, akey, sizeof(*akey))) != 0) 1201 return error; 1202 } 1203 if (kid >= 0) { 1204 akey->an_key_index = htole16(0xffff); 1205 akey->an_mac_addr[0] = kid; 1206 akey->an_key_len = htole16(0); 1207 memset(akey->an_key, 0, sizeof(akey->an_key)); 1208 error = an_write_rid(sc, type, akey, sizeof(*akey)); 1209 } 1210 return error; 1211} 1212 1213 1214/* 1215 * Low level functions 1216 */ 1217 1218static void 1219an_rx_intr(struct an_softc *sc) 1220{ 1221 struct ieee80211com *ic = &sc->sc_ic; 1222 struct ifnet *ifp = &ic->ic_if; 1223 struct ieee80211_frame *wh; 1224 struct ieee80211_node *ni; 1225 struct an_rxframe frmhdr; 1226 struct mbuf *m; 1227 u_int16_t status; 1228 int fid, off, len; 1229 1230 fid = CSR_READ_2(sc, AN_RX_FID); 1231 1232 /* First read in the frame header */ 1233 if (an_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 1234 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1235 ifp->if_ierrors++; 1236 DPRINTF(("an_rx_intr: read fid %x failed\n", fid)); 1237 return; 1238 } 1239 1240#ifdef AN_DEBUG 1241 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) { 1242 ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, 1243 sizeof(struct ieee80211_frame), frmhdr.an_rx_rate, 1244 frmhdr.an_rx_signal_strength); 1245 printf(" time 0x%x status 0x%x plen %u chan %u" 1246 " plcp %02x %02x %02x %02x gap %u\n", 1247 le32toh(frmhdr.an_rx_time), le16toh(frmhdr.an_rx_status), 1248 le16toh(frmhdr.an_rx_payload_len), frmhdr.an_rx_chan, 1249 frmhdr.an_plcp_hdr[0], frmhdr.an_plcp_hdr[1], 1250 frmhdr.an_plcp_hdr[2], frmhdr.an_plcp_hdr[3], 1251 le16toh(frmhdr.an_gaplen)); 1252 } 1253#endif 1254 1255 status = le16toh(frmhdr.an_rx_status); 1256 if ((status & AN_STAT_ERRSTAT) != 0 && 1257 ic->ic_opmode != IEEE80211_M_MONITOR) { 1258 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1259 ifp->if_ierrors++; 1260 DPRINTF(("an_rx_intr: fid %x status %x\n", fid, status)); 1261 return; 1262 } 1263 1264 len = le16toh(frmhdr.an_rx_payload_len); 1265 off = ALIGN(sizeof(struct ieee80211_frame)); 1266 1267 if (off + len > MCLBYTES) { 1268 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1269 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1270 ifp->if_ierrors++; 1271 DPRINTF(("an_rx_intr: oversized packet %d\n", len)); 1272 return; 1273 } 1274 len = 0; 1275 } 1276 1277 MGETHDR(m, M_DONTWAIT, MT_DATA); 1278 if (m == NULL) { 1279 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1280 ifp->if_ierrors++; 1281 DPRINTF(("an_rx_intr: MGET failed\n")); 1282 return; 1283 } 1284 if (off + len > MHLEN) { 1285 MCLGET(m, M_DONTWAIT); 1286 if ((m->m_flags & M_EXT) == 0) { 1287 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1288 m_freem(m); 1289 ifp->if_ierrors++; 1290 DPRINTF(("an_rx_intr: MCLGET failed\n")); 1291 return; 1292 } 1293 } 1294 m->m_data += off - sizeof(struct ieee80211_frame); 1295 1296 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1297 /* 1298 * The gap and the payload length should be skipped. 1299 * Make dummy read to avoid seek. 1300 */ 1301 an_read_bap(sc, fid, -1, m->m_data, 1302 le16toh(frmhdr.an_gaplen) + sizeof(u_int16_t)); 1303#ifdef AN_DEBUG 1304 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == 1305 (IFF_DEBUG|IFF_LINK2)) { 1306 int i; 1307 printf(" gap&len"); 1308 for (i = 0; 1309 i < le16toh(frmhdr.an_gaplen) + sizeof(u_int16_t); 1310 i++) 1311 printf(" %02x", mtod(m, u_int8_t *)[i]); 1312 printf("\n"); 1313 } 1314#endif 1315 } 1316 memcpy(m->m_data, &frmhdr.an_whdr, sizeof(struct ieee80211_frame)); 1317 an_read_bap(sc, fid, -1, m->m_data + sizeof(struct ieee80211_frame), 1318 len); 1319 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; 1320 m->m_pkthdr.rcvif = ifp; 1321 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1322 1323 wh = mtod(m, struct ieee80211_frame *); 1324 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1325 /* 1326 * WEP is decrypted by hardware. Clear WEP bit 1327 * header for ieee80211_input(). 1328 */ 1329 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 1330 } 1331 1332 ni = ieee80211_find_rxnode(ic, wh); 1333 ieee80211_input(ifp, m, ni, frmhdr.an_rx_signal_strength, 1334 le32toh(frmhdr.an_rx_time)); 1335} 1336 1337static void 1338an_tx_intr(struct an_softc *sc, int status) 1339{ 1340 struct ifnet *ifp = &sc->sc_ic.ic_if; 1341 int cur, fid; 1342 1343 sc->sc_tx_timer = 0; 1344 ifp->if_flags &= ~IFF_OACTIVE; 1345 1346 fid = CSR_READ_2(sc, AN_TX_CMP_FID); 1347 CSR_WRITE_2(sc, AN_EVENT_ACK, status & (AN_EV_TX | AN_EV_TX_EXC)); 1348 1349 if (status & AN_EV_TX_EXC) 1350 ifp->if_oerrors++; 1351 else 1352 ifp->if_opackets++; 1353 1354 cur = sc->sc_txcur; 1355 if (sc->sc_txd[cur].d_fid == fid) { 1356 sc->sc_txd[cur].d_inuse = 0; 1357 DPRINTF2(("an_tx_intr: sent %x/%d\n", fid, cur)); 1358 AN_INC(cur, AN_TX_RING_CNT); 1359 sc->sc_txcur = cur; 1360 } else { 1361 for (cur = 0; cur < AN_TX_RING_CNT; cur++) { 1362 if (fid == sc->sc_txd[cur].d_fid) { 1363 sc->sc_txd[cur].d_inuse = 0; 1364 break; 1365 } 1366 } 1367 if (ifp->if_flags & IFF_DEBUG) 1368 printf("%s: tx mismatch: " 1369 "expected %x(%d), actual %x(%d)\n", 1370 sc->sc_dev.dv_xname, 1371 sc->sc_txd[sc->sc_txcur].d_fid, sc->sc_txcur, 1372 fid, cur); 1373 } 1374 1375 return; 1376} 1377 1378static void 1379an_linkstat_intr(struct an_softc *sc) 1380{ 1381 struct ieee80211com *ic = &sc->sc_ic; 1382 u_int16_t status; 1383 1384 status = CSR_READ_2(sc, AN_LINKSTAT); 1385 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_LINKSTAT); 1386 DPRINTF(("an_linkstat_intr: status 0x%x\n", status)); 1387 1388 if (status == AN_LINKSTAT_ASSOCIATED) { 1389 if (ic->ic_state != IEEE80211_S_RUN || 1390 ic->ic_opmode == IEEE80211_M_IBSS) 1391 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1392 } else { 1393 if (ic->ic_opmode == IEEE80211_M_STA) 1394 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1395 } 1396} 1397 1398/* Must be called at proper protection level! */ 1399static int 1400an_cmd(struct an_softc *sc, int cmd, int val) 1401{ 1402 int i, status; 1403 1404 /* make sure that previous command completed */ 1405 if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) { 1406 if (sc->sc_ic.ic_if.if_flags & IFF_DEBUG) 1407 printf("%s: command 0x%x busy\n", sc->sc_dev.dv_xname, 1408 CSR_READ_2(sc, AN_COMMAND)); 1409 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); 1410 } 1411 1412 CSR_WRITE_2(sc, AN_PARAM0, val); 1413 CSR_WRITE_2(sc, AN_PARAM1, 0); 1414 CSR_WRITE_2(sc, AN_PARAM2, 0); 1415 CSR_WRITE_2(sc, AN_COMMAND, cmd); 1416 1417 if (cmd == AN_CMD_FW_RESTART) { 1418 /* XXX: should sleep here */ 1419 DELAY(100*1000); 1420 } 1421 1422 for (i = 0; i < AN_TIMEOUT; i++) { 1423 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) 1424 break; 1425 DELAY(10); 1426 } 1427 1428 status = CSR_READ_2(sc, AN_STATUS); 1429 1430 /* clear stuck command busy if necessary */ 1431 if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) 1432 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); 1433 1434 /* Ack the command */ 1435 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); 1436 1437 if (i == AN_TIMEOUT) { 1438 if (sc->sc_ic.ic_if.if_flags & IFF_DEBUG) 1439 printf("%s: command 0x%x param 0x%x timeout\n", 1440 sc->sc_dev.dv_xname, cmd, val); 1441 return ETIMEDOUT; 1442 } 1443 if (status & AN_STAT_CMD_RESULT) { 1444 if (sc->sc_ic.ic_if.if_flags & IFF_DEBUG) 1445 printf("%s: command 0x%x param 0x%x status 0x%x " 1446 "resp 0x%x 0x%x 0x%x\n", 1447 sc->sc_dev.dv_xname, cmd, val, status, 1448 CSR_READ_2(sc, AN_RESP0), CSR_READ_2(sc, AN_RESP1), 1449 CSR_READ_2(sc, AN_RESP2)); 1450 return EIO; 1451 } 1452 1453 return 0; 1454} 1455 1456 1457/* 1458 * Wait for firmware come up after power enabled. 1459 */ 1460static void 1461an_wait(struct an_softc *sc) 1462{ 1463 int i; 1464 1465 CSR_WRITE_2(sc, AN_COMMAND, AN_CMD_NOOP2); 1466 for (i = 0; i < 3*hz; i++) { 1467 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) 1468 break; 1469 (void)tsleep(sc, PWAIT, "anatch", 1); 1470 } 1471 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); 1472} 1473 1474static int 1475an_seek_bap(struct an_softc *sc, int id, int off) 1476{ 1477 int i, status; 1478 1479 CSR_WRITE_2(sc, AN_SEL0, id); 1480 CSR_WRITE_2(sc, AN_OFF0, off); 1481 1482 for (i = 0; ; i++) { 1483 status = CSR_READ_2(sc, AN_OFF0); 1484 if ((status & AN_OFF_BUSY) == 0) 1485 break; 1486 if (i == AN_TIMEOUT) { 1487 printf("%s: timeout in an_seek_bap to 0x%x/0x%x\n", 1488 sc->sc_dev.dv_xname, id, off); 1489 sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ 1490 return ETIMEDOUT; 1491 } 1492 DELAY(10); 1493 } 1494 if (status & AN_OFF_ERR) { 1495 printf("%s: failed in an_seek_bap to 0x%x/0x%x\n", 1496 sc->sc_dev.dv_xname, id, off); 1497 sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ 1498 return EIO; 1499 } 1500 sc->sc_bap_id = id; 1501 sc->sc_bap_off = off; 1502 return 0; 1503} 1504 1505static int 1506an_read_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) 1507{ 1508 int error, cnt; 1509 1510 if (buflen == 0) 1511 return 0; 1512 if (off == -1) 1513 off = sc->sc_bap_off; 1514 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1515 if ((error = an_seek_bap(sc, id, off)) != 0) 1516 return EIO; 1517 } 1518 1519 cnt = (buflen + 1) / 2; 1520 CSR_READ_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); 1521 sc->sc_bap_off += cnt * 2; 1522 return 0; 1523} 1524 1525static int 1526an_write_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) 1527{ 1528 int error, cnt; 1529 1530 if (buflen == 0) 1531 return 0; 1532 if (off == -1) 1533 off = sc->sc_bap_off; 1534 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1535 if ((error = an_seek_bap(sc, id, off)) != 0) 1536 return EIO; 1537 } 1538 1539 cnt = (buflen + 1) / 2; 1540 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); 1541 sc->sc_bap_off += cnt * 2; 1542 return 0; 1543} 1544 1545static int 1546an_mwrite_bap(struct an_softc *sc, int id, int off, struct mbuf *m, int totlen) 1547{ 1548 int error, len, cnt; 1549 1550 if (off == -1) 1551 off = sc->sc_bap_off; 1552 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1553 if ((error = an_seek_bap(sc, id, off)) != 0) 1554 return EIO; 1555 } 1556 1557 for (len = 0; m != NULL; m = m->m_next) { 1558 if (m->m_len == 0) 1559 continue; 1560 len = min(m->m_len, totlen); 1561 1562 if ((mtod(m, u_long) & 0x1) || (len & 0x1)) { 1563 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_buf.sc_txbuf); 1564 cnt = (totlen + 1) / 2; 1565 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, 1566 sc->sc_buf.sc_val, cnt); 1567 off += cnt * 2; 1568 break; 1569 } 1570 cnt = len / 2; 1571 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, mtod(m, u_int16_t *), 1572 cnt); 1573 off += len; 1574 totlen -= len; 1575 } 1576 sc->sc_bap_off = off; 1577 return 0; 1578} 1579 1580static int 1581an_alloc_fid(struct an_softc *sc, int len, int *idp) 1582{ 1583 int i; 1584 1585 if (an_cmd(sc, AN_CMD_ALLOC_MEM, len)) { 1586 printf("%s: failed to allocate %d bytes on NIC\n", 1587 sc->sc_dev.dv_xname, len); 1588 return ENOMEM; 1589 } 1590 1591 for (i = 0; i < AN_TIMEOUT; i++) { 1592 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_ALLOC) 1593 break; 1594 if (i == AN_TIMEOUT) { 1595 printf("%s: timeout in alloc\n", sc->sc_dev.dv_xname); 1596 return ETIMEDOUT; 1597 } 1598 DELAY(10); 1599 } 1600 1601 *idp = CSR_READ_2(sc, AN_ALLOC_FID); 1602 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_ALLOC); 1603 return 0; 1604} 1605 1606static int 1607an_read_rid(struct an_softc *sc, int rid, void *buf, int *buflenp) 1608{ 1609 int error; 1610 u_int16_t len; 1611 1612 /* Tell the NIC to enter record read mode. */ 1613 error = an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_READ, rid); 1614 if (error) 1615 return error; 1616 1617 /* length in byte, including length itself */ 1618 error = an_read_bap(sc, rid, 0, &len, sizeof(len)); 1619 if (error) 1620 return error; 1621 1622 len = le16toh(len) - 2; 1623 if (*buflenp < len) { 1624 printf("%s: record buffer is too small, " 1625 "rid=%x, size=%d, len=%d\n", 1626 sc->sc_dev.dv_xname, rid, *buflenp, len); 1627 return ENOSPC; 1628 } 1629 *buflenp = len; 1630 return an_read_bap(sc, rid, sizeof(len), buf, len); 1631} 1632 1633static int 1634an_write_rid(struct an_softc *sc, int rid, void *buf, int buflen) 1635{ 1636 int error; 1637 u_int16_t len; 1638 1639 /* length in byte, including length itself */ 1640 len = htole16(buflen + 2); 1641 1642 error = an_write_bap(sc, rid, 0, &len, sizeof(len)); 1643 if (error) 1644 return error; 1645 error = an_write_bap(sc, rid, sizeof(len), buf, buflen); 1646 if (error) 1647 return error; 1648 1649 return an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_WRITE, rid); 1650} 1651 1652static int 1653an_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1654{ 1655 struct an_softc *sc = ic->ic_softc; 1656 struct ieee80211_node *ni = ic->ic_bss; 1657 enum ieee80211_state ostate; 1658 int buflen; 1659 1660 ostate = ic->ic_state; 1661 DPRINTF(("an_newstate: %s -> %s\n", ieee80211_state_name[ostate], 1662 ieee80211_state_name[nstate])); 1663 1664 switch (nstate) { 1665 case IEEE80211_S_INIT: 1666 ic->ic_flags &= ~IEEE80211_F_IBSSON; 1667 return (*sc->sc_newstate)(ic, nstate, arg); 1668 1669 case IEEE80211_S_RUN: 1670 buflen = sizeof(sc->sc_buf); 1671 an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen); 1672 IEEE80211_ADDR_COPY(ni->ni_bssid, 1673 sc->sc_buf.sc_status.an_cur_bssid); 1674 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid); 1675 ni->ni_chan = &ic->ic_channels[ 1676 le16toh(sc->sc_buf.sc_status.an_cur_channel)]; 1677 ni->ni_esslen = le16toh(sc->sc_buf.sc_status.an_ssidlen); 1678 if (ni->ni_esslen > IEEE80211_NWID_LEN) 1679 ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ 1680 memcpy(ni->ni_essid, sc->sc_buf.sc_status.an_ssid, 1681 ni->ni_esslen); 1682 ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B]; /*XXX*/ 1683 if (ic->ic_if.if_flags & IFF_DEBUG) { 1684 printf("%s: ", sc->sc_dev.dv_xname); 1685 if (ic->ic_opmode == IEEE80211_M_STA) 1686 printf("associated "); 1687 else 1688 printf("synchronized "); 1689 printf("with %s ssid ", ether_sprintf(ni->ni_bssid)); 1690 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 1691 printf(" channel %u start %uMb\n", 1692 le16toh(sc->sc_buf.sc_status.an_cur_channel), 1693 le16toh(sc->sc_buf.sc_status.an_current_tx_rate)/2); 1694 } 1695 break; 1696 1697 default: 1698 break; 1699 } 1700 ic->ic_state = nstate; 1701 /* skip standard ieee80211 handling */ 1702 return 0; 1703} 1704