1 /* $NetBSD: an.c,v 1.68 2018/06/26 06:48:00 msaitoh 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 * Copyright (c) 2004, 2005 David Young. All rights reserved. 37 * Copyright (c) 2004, 2005 OJC Technologies. All rights reserved. 38 * Copyright (c) 2004, 2005 Dayton Data Center Services, LLC. All 39 * rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. Neither the name of the author nor the names of any co-contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY David Young AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL David Young AND CONTRIBUTORS 57 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 58 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 59 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 60 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 61 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 62 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 63 * THE POSSIBILITY OF SUCH DAMAGE. 64 */ 65 66 /* 67 * Aironet 4500/4800 802.11 PCMCIA/ISA/PCI driver for FreeBSD. 68 * 69 * Written by Bill Paul <wpaul@ctr.columbia.edu> 70 * Electrical Engineering Department 71 * Columbia University, New York City 72 */ 73 74 /* 75 * Ported to NetBSD from FreeBSD by Atsushi Onoe at the San Diego 76 * IETF meeting. 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: an.c,v 1.68 2018/06/26 06:48:00 msaitoh Exp $"); 81 82 83 #include <sys/param.h> 84 #include <sys/callout.h> 85 #include <sys/sysctl.h> 86 #include <sys/systm.h> 87 #include <sys/sockio.h> 88 #include <sys/mbuf.h> 89 #include <sys/kernel.h> 90 #include <sys/ucred.h> 91 #include <sys/socket.h> 92 #include <sys/device.h> 93 #include <sys/proc.h> 94 #include <sys/md4.h> 95 #include <sys/endian.h> 96 #include <sys/kauth.h> 97 98 #include <sys/bus.h> 99 #include <sys/intr.h> 100 101 #include <net/if.h> 102 #include <net/if_dl.h> 103 #include <net/if_ether.h> 104 #include <net/if_llc.h> 105 #include <net/if_media.h> 106 #include <net/if_types.h> 107 #include <net/bpf.h> 108 109 #include <net80211/ieee80211_netbsd.h> 110 #include <net80211/ieee80211_var.h> 111 #include <net80211/ieee80211_radiotap.h> 112 113 #include <dev/ic/anreg.h> 114 #include <dev/ic/anvar.h> 115 116 static int an_reset(struct an_softc *); 117 static void an_wait(struct an_softc *); 118 static void an_softintr(void *); 119 static int an_init(struct ifnet *); 120 static void an_stop(struct ifnet *, int); 121 static void an_start(struct ifnet *); 122 static void an_watchdog(struct ifnet *); 123 static int an_ioctl(struct ifnet *, u_long, void *); 124 static int an_media_change(struct ifnet *); 125 static void an_media_status(struct ifnet *, struct ifmediareq *); 126 127 static int an_set_nwkey(struct an_softc *, struct ieee80211_nwkey *); 128 static int an_set_nwkey_wep(struct an_softc *, struct ieee80211_nwkey *); 129 static int an_set_nwkey_eap(struct an_softc *, struct ieee80211_nwkey *); 130 static int an_get_nwkey(struct an_softc *, struct ieee80211_nwkey *); 131 static int an_write_wepkey(struct an_softc *, int, struct an_wepkey *, 132 int); 133 134 static void an_rx_intr(struct an_softc *); 135 static void an_tx_intr(struct an_softc *, int); 136 static void an_linkstat_intr(struct an_softc *); 137 138 static int an_cmd(struct an_softc *, int, int); 139 static int an_seek_bap(struct an_softc *, int, int); 140 static int an_read_bap(struct an_softc *, int, int, void *, int); 141 static int an_write_bap(struct an_softc *, int, int, void *, int); 142 static int an_mwrite_bap(struct an_softc *, int, int, struct mbuf *, int); 143 static int an_read_rid(struct an_softc *, int, void *, int *); 144 static int an_write_rid(struct an_softc *, int, void *, int); 145 146 static int an_alloc_fid(struct an_softc *, int, int *); 147 148 static int an_newstate(struct ieee80211com *, enum ieee80211_state, int); 149 150 #ifdef AN_DEBUG 151 int an_debug = 0; 152 153 #define DPRINTF(X) if (an_debug) printf X 154 #define DPRINTF2(X) if (an_debug > 1) printf X 155 static int an_sysctl_verify(SYSCTLFN_PROTO, int lower, int upper); 156 static int an_sysctl_verify_debug(SYSCTLFN_PROTO); 157 #else 158 #define DPRINTF(X) 159 #define DPRINTF2(X) 160 #endif 161 162 int 163 an_attach(struct an_softc *sc) 164 { 165 struct ieee80211com *ic = &sc->sc_ic; 166 struct ifnet *ifp = &sc->sc_if; 167 int i, s, rv = 0; 168 struct an_rid_wepkey *akey; 169 int buflen, kid, rid; 170 int chan, chan_min, chan_max; 171 172 s = splnet(); 173 174 an_wait(sc); 175 if (an_reset(sc) != 0) { 176 config_deactivate(sc->sc_dev); 177 rv = 1; 178 goto fail_1; 179 } 180 181 sc->sc_soft_ih = softint_establish(SOFTINT_NET, an_softintr, sc); 182 if (sc->sc_soft_ih == NULL) { 183 aprint_error_dev(sc->sc_dev, "failed to establish softint\n"); 184 rv = 1; 185 goto fail_1; 186 } 187 188 /* Load factory config */ 189 if (an_cmd(sc, AN_CMD_READCFG, 0) != 0) { 190 aprint_error_dev(sc->sc_dev, "failed to load config data\n"); 191 rv = 1; 192 goto fail_2; 193 } 194 195 /* Read the current configuration */ 196 buflen = sizeof(sc->sc_config); 197 if (an_read_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, &buflen) != 0) { 198 aprint_error_dev(sc->sc_dev, "read config failed\n"); 199 rv = 1; 200 goto fail_2; 201 } 202 203 /* Read the card capabilities */ 204 buflen = sizeof(sc->sc_caps); 205 if (an_read_rid(sc, AN_RID_CAPABILITIES, &sc->sc_caps, &buflen) != 0) { 206 aprint_error_dev(sc->sc_dev, "read caps failed\n"); 207 rv = 1; 208 goto fail_2; 209 } 210 211 #ifdef AN_DEBUG 212 if (an_debug) { 213 static const int dumprid[] = { 214 AN_RID_GENCONFIG, AN_RID_CAPABILITIES, AN_RID_SSIDLIST, 215 AN_RID_APLIST, AN_RID_STATUS, AN_RID_ENCAP 216 }; 217 218 for (rid = 0; rid < sizeof(dumprid)/sizeof(dumprid[0]); rid++) { 219 buflen = sizeof(sc->sc_buf); 220 if (an_read_rid(sc, dumprid[rid], &sc->sc_buf, &buflen) 221 != 0) 222 continue; 223 printf("%04x (%d):\n", dumprid[rid], buflen); 224 for (i = 0; i < (buflen + 1) / 2; i++) 225 printf(" %04x", sc->sc_buf.sc_val[i]); 226 printf("\n"); 227 } 228 } 229 #endif 230 231 /* Read WEP settings from persistent memory */ 232 akey = &sc->sc_buf.sc_wepkey; 233 buflen = sizeof(struct an_rid_wepkey); 234 rid = AN_RID_WEP_VOLATILE; /* first persistent key */ 235 while (an_read_rid(sc, rid, akey, &buflen) == 0) { 236 kid = le16toh(akey->an_key_index); 237 DPRINTF(("an_attach: wep rid=0x%x len=%d(%zu) index=0x%04x " 238 "mac[0]=%02x keylen=%d\n", 239 rid, buflen, sizeof(*akey), kid, 240 akey->an_mac_addr[0], le16toh(akey->an_key_len))); 241 if (kid == 0xffff) { 242 sc->sc_tx_perskey = akey->an_mac_addr[0]; 243 sc->sc_tx_key = -1; 244 break; 245 } 246 if (kid >= IEEE80211_WEP_NKID) 247 break; 248 sc->sc_perskeylen[kid] = le16toh(akey->an_key_len); 249 sc->sc_wepkeys[kid].an_wep_keylen = -1; 250 rid = AN_RID_WEP_PERSISTENT; /* for next key */ 251 buflen = sizeof(struct an_rid_wepkey); 252 } 253 254 aprint_normal_dev(sc->sc_dev, "%s %s (firmware %s)\n", 255 sc->sc_caps.an_manufname, sc->sc_caps.an_prodname, 256 sc->sc_caps.an_prodvers); 257 258 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 259 260 ifp->if_softc = sc; 261 ifp->if_flags = IFF_BROADCAST | IFF_NOTRAILERS | IFF_SIMPLEX | 262 IFF_MULTICAST | IFF_ALLMULTI; 263 ifp->if_ioctl = an_ioctl; 264 ifp->if_start = an_start; 265 ifp->if_init = an_init; 266 ifp->if_stop = an_stop; 267 ifp->if_watchdog = an_watchdog; 268 IFQ_SET_READY(&ifp->if_snd); 269 270 ic->ic_ifp = ifp; 271 ic->ic_phytype = IEEE80211_T_DS; 272 ic->ic_opmode = IEEE80211_M_STA; 273 ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_PMGT | IEEE80211_C_IBSS | 274 IEEE80211_C_MONITOR; 275 ic->ic_state = IEEE80211_S_INIT; 276 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_caps.an_oemaddr); 277 278 switch (le16toh(sc->sc_caps.an_regdomain)) { 279 default: 280 case AN_REGDOMAIN_USA: 281 case AN_REGDOMAIN_CANADA: 282 chan_min = 1; chan_max = 11; break; 283 case AN_REGDOMAIN_EUROPE: 284 case AN_REGDOMAIN_AUSTRALIA: 285 chan_min = 1; chan_max = 13; break; 286 case AN_REGDOMAIN_JAPAN: 287 chan_min = 14; chan_max = 14; break; 288 case AN_REGDOMAIN_SPAIN: 289 chan_min = 10; chan_max = 11; break; 290 case AN_REGDOMAIN_FRANCE: 291 chan_min = 10; chan_max = 13; break; 292 case AN_REGDOMAIN_JAPANWIDE: 293 chan_min = 1; chan_max = 14; break; 294 } 295 296 for (chan = chan_min; chan <= chan_max; chan++) { 297 ic->ic_channels[chan].ic_freq = 298 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 299 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; 300 } 301 ic->ic_ibss_chan = &ic->ic_channels[chan_min]; 302 303 aprint_normal("%s: 802.11 address: %s, channel: %d-%d\n", 304 ifp->if_xname, ether_sprintf(ic->ic_myaddr), chan_min, chan_max); 305 306 /* Find supported rate */ 307 for (i = 0; i < sizeof(sc->sc_caps.an_rates); i++) { 308 if (sc->sc_caps.an_rates[i] == 0) 309 continue; 310 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 311 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates++] = 312 sc->sc_caps.an_rates[i]; 313 } 314 315 /* 316 * Call MI attach routine. 317 */ 318 rv = if_initialize(ifp); 319 if (rv != 0) { 320 aprint_error_dev(sc->sc_dev, "if_initialize failed(%d)\n", rv); 321 goto fail_2; 322 } 323 ieee80211_ifattach(ic); 324 ifp->if_percpuq = if_percpuq_create(ifp); 325 if_register(ifp); 326 327 sc->sc_newstate = ic->ic_newstate; 328 ic->ic_newstate = an_newstate; 329 330 ieee80211_media_init(ic, an_media_change, an_media_status); 331 332 /* 333 * radiotap BPF device 334 */ 335 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 336 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 337 338 memset(&sc->sc_rxtapu, 0, sizeof(sc->sc_rxtapu)); 339 sc->sc_rxtap.ar_ihdr.it_len = htole16(sizeof(sc->sc_rxtapu)); 340 sc->sc_rxtap.ar_ihdr.it_present = htole32(AN_RX_RADIOTAP_PRESENT); 341 342 memset(&sc->sc_txtapu, 0, sizeof(sc->sc_txtapu)); 343 sc->sc_txtap.at_ihdr.it_len = htole16(sizeof(sc->sc_txtapu)); 344 sc->sc_txtap.at_ihdr.it_present = htole32(AN_TX_RADIOTAP_PRESENT); 345 346 sc->sc_attached = 1; 347 splx(s); 348 349 ieee80211_announce(ic); 350 return 0; 351 352 fail_2: 353 if (sc->sc_soft_ih != NULL) 354 softint_disestablish(sc->sc_soft_ih); 355 fail_1: 356 splx(s); 357 358 return rv; 359 } 360 361 #ifdef AN_DEBUG 362 /* 363 * Setup sysctl(3) MIB, hw.an.* 364 * 365 * TBD condition CTLFLAG_PERMANENT on being a module or not 366 */ 367 SYSCTL_SETUP(sysctl_an, "sysctl an(4) subtree setup") 368 { 369 int rc; 370 const struct sysctlnode *cnode, *rnode; 371 372 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 373 CTLFLAG_PERMANENT, CTLTYPE_NODE, "an", 374 "Cisco/Aironet 802.11 controls", 375 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 376 goto err; 377 378 /* control debugging printfs */ 379 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 380 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 381 "debug", SYSCTL_DESCR("Enable Cisco/Aironet debugging output"), 382 an_sysctl_verify_debug, 0, &an_debug, 0, 383 CTL_CREATE, CTL_EOL)) != 0) 384 goto err; 385 386 return; 387 err: 388 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 389 } 390 391 static int 392 an_sysctl_verify(SYSCTLFN_ARGS, int lower, int upper) 393 { 394 int error, t; 395 struct sysctlnode node; 396 397 node = *rnode; 398 t = *(int*)rnode->sysctl_data; 399 node.sysctl_data = &t; 400 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 401 if (error || newp == NULL) 402 return (error); 403 404 if (t < lower || t > upper) 405 return (EINVAL); 406 407 *(int*)rnode->sysctl_data = t; 408 409 return (0); 410 } 411 412 static int 413 an_sysctl_verify_debug(SYSCTLFN_ARGS) 414 { 415 return an_sysctl_verify(SYSCTLFN_CALL(rnode), 0, 2); 416 } 417 #endif /* AN_DEBUG */ 418 419 int 420 an_detach(struct an_softc *sc) 421 { 422 struct ieee80211com *ic = &sc->sc_ic; 423 struct ifnet *ifp = &sc->sc_if; 424 int s; 425 426 if (!sc->sc_attached) 427 return 0; 428 429 s = splnet(); 430 an_stop(ifp, 1); 431 ieee80211_ifdetach(ic); 432 if_detach(ifp); 433 if (sc->sc_soft_ih != NULL) 434 softint_disestablish(sc->sc_soft_ih); 435 splx(s); 436 437 return 0; 438 } 439 440 int 441 an_activate(device_t self, enum devact act) 442 { 443 struct an_softc *sc = device_private(self); 444 445 switch (act) { 446 case DVACT_DEACTIVATE: 447 if_deactivate(&sc->sc_if); 448 return 0; 449 default: 450 return EOPNOTSUPP; 451 } 452 } 453 454 int 455 an_intr(void *arg) 456 { 457 struct an_softc *sc = arg; 458 struct ifnet *ifp = &sc->sc_if; 459 460 if (!sc->sc_enabled || !device_is_active(sc->sc_dev) || 461 (ifp->if_flags & IFF_RUNNING) == 0) 462 return 0; 463 464 if ((ifp->if_flags & IFF_UP) == 0) { 465 CSR_WRITE_2(sc, AN_INT_EN, 0); 466 CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); 467 return 1; 468 } 469 470 /* Disable interrupts */ 471 CSR_WRITE_2(sc, AN_INT_EN, 0); 472 473 softint_schedule(sc->sc_soft_ih); 474 return 1; 475 } 476 477 static void 478 an_softintr(void *arg) 479 { 480 struct an_softc *sc = arg; 481 struct ifnet *ifp = &sc->sc_if; 482 int i, s; 483 uint16_t status; 484 485 if (!sc->sc_enabled || !device_is_active(sc->sc_dev) || 486 (ifp->if_flags & IFF_RUNNING) == 0) 487 return; 488 489 if ((ifp->if_flags & IFF_UP) == 0) { 490 CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); 491 return; 492 } 493 494 /* maximum 10 loops per interrupt */ 495 for (i = 0; i < 10; i++) { 496 if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) 497 return; 498 if (CSR_READ_2(sc, AN_SW0) != AN_MAGIC) { 499 DPRINTF(("an_intr: magic number changed: %x\n", 500 CSR_READ_2(sc, AN_SW0))); 501 config_deactivate(sc->sc_dev); 502 return; 503 } 504 status = CSR_READ_2(sc, AN_EVENT_STAT); 505 CSR_WRITE_2(sc, AN_EVENT_ACK, status & ~(AN_INTRS)); 506 if ((status & AN_INTRS) == 0) 507 break; 508 509 if (status & AN_EV_RX) 510 an_rx_intr(sc); 511 512 if (status & (AN_EV_TX | AN_EV_TX_EXC)) 513 an_tx_intr(sc, status); 514 515 if (status & AN_EV_LINKSTAT) 516 an_linkstat_intr(sc); 517 518 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 519 sc->sc_ic.ic_state == IEEE80211_S_RUN && 520 !IFQ_IS_EMPTY(&ifp->if_snd)) { 521 s = splnet(); 522 an_start(ifp); /* in softint */ 523 splx(s); 524 } 525 } 526 if (i == 10) 527 softint_schedule(sc->sc_soft_ih); 528 529 /* Re-enable interrupts */ 530 CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); 531 } 532 533 static int 534 an_init(struct ifnet *ifp) 535 { 536 struct an_softc *sc = ifp->if_softc; 537 struct ieee80211com *ic = &sc->sc_ic; 538 int i, error, fid; 539 540 DPRINTF(("an_init: enabled %d\n", sc->sc_enabled)); 541 if (!sc->sc_enabled) { 542 if (sc->sc_enable) 543 (*sc->sc_enable)(sc); 544 an_wait(sc); 545 sc->sc_enabled = 1; 546 } else { 547 an_stop(ifp, 0); 548 if ((error = an_reset(sc)) != 0) { 549 printf("%s: failed to reset\n", ifp->if_xname); 550 an_stop(ifp, 1); 551 return error; 552 } 553 } 554 CSR_WRITE_2(sc, AN_SW0, AN_MAGIC); 555 556 /* Allocate the TX buffers */ 557 for (i = 0; i < AN_TX_RING_CNT; i++) { 558 if ((error = an_alloc_fid(sc, AN_TX_MAX_LEN, &fid)) != 0) { 559 printf("%s: failed to allocate nic memory\n", 560 ifp->if_xname); 561 an_stop(ifp, 1); 562 return error; 563 } 564 DPRINTF2(("an_init: txbuf %d allocated %x\n", i, fid)); 565 sc->sc_txd[i].d_fid = fid; 566 sc->sc_txd[i].d_inuse = 0; 567 } 568 sc->sc_txcur = sc->sc_txnext = 0; 569 570 IEEE80211_ADDR_COPY(sc->sc_config.an_macaddr, ic->ic_myaddr); 571 sc->sc_config.an_scanmode = htole16(AN_SCANMODE_ACTIVE); 572 sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_OPEN); /*XXX*/ 573 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 574 sc->sc_config.an_authtype |= 575 htole16(AN_AUTHTYPE_PRIVACY_IN_USE); 576 if (sc->sc_use_leap) 577 sc->sc_config.an_authtype |= 578 htole16(AN_AUTHTYPE_LEAP); 579 } 580 sc->sc_config.an_listen_interval = htole16(ic->ic_lintval); 581 sc->sc_config.an_beacon_period = htole16(ic->ic_lintval); 582 if (ic->ic_flags & IEEE80211_F_PMGTON) 583 sc->sc_config.an_psave_mode = htole16(AN_PSAVE_PSP); 584 else 585 sc->sc_config.an_psave_mode = htole16(AN_PSAVE_CAM); 586 sc->sc_config.an_ds_channel = 587 htole16(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 588 589 switch (ic->ic_opmode) { 590 case IEEE80211_M_STA: 591 sc->sc_config.an_opmode = 592 htole16(AN_OPMODE_INFRASTRUCTURE_STATION); 593 sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); 594 break; 595 case IEEE80211_M_IBSS: 596 sc->sc_config.an_opmode = htole16(AN_OPMODE_IBSS_ADHOC); 597 sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); 598 break; 599 case IEEE80211_M_MONITOR: 600 sc->sc_config.an_opmode = 601 htole16(AN_OPMODE_INFRASTRUCTURE_STATION); 602 sc->sc_config.an_rxmode = 603 htole16(AN_RXMODE_80211_MONITOR_ANYBSS); 604 sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_NONE); 605 if (ic->ic_flags & IEEE80211_F_PRIVACY) 606 sc->sc_config.an_authtype |= 607 htole16(AN_AUTHTYPE_PRIVACY_IN_USE | 608 AN_AUTHTYPE_ALLOW_UNENCRYPTED); 609 break; 610 default: 611 printf("%s: bad opmode %d\n", ifp->if_xname, ic->ic_opmode); 612 an_stop(ifp, 1); 613 return EIO; 614 } 615 sc->sc_config.an_rxmode |= htole16(AN_RXMODE_NO_8023_HEADER); 616 617 /* Set the ssid list */ 618 memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_ssidlist)); 619 sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid_len = 620 htole16(ic->ic_des_esslen); 621 if (ic->ic_des_esslen) 622 memcpy(sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid, 623 ic->ic_des_essid, ic->ic_des_esslen); 624 if ((error = an_write_rid(sc, AN_RID_SSIDLIST, &sc->sc_buf, 625 sizeof(sc->sc_buf.sc_ssidlist))) != 0) { 626 printf("%s: failed to write ssid list\n", ifp->if_xname); 627 an_stop(ifp, 1); 628 return error; 629 } 630 631 /* Set the AP list */ 632 memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_aplist)); 633 (void)an_write_rid(sc, AN_RID_APLIST, &sc->sc_buf, 634 sizeof(sc->sc_buf.sc_aplist)); 635 636 /* Set the encapsulation */ 637 for (i = 0; i < AN_ENCAP_NENTS; i++) { 638 sc->sc_buf.sc_encap.an_entry[i].an_ethertype = htole16(0); 639 sc->sc_buf.sc_encap.an_entry[i].an_action = 640 htole16(AN_RXENCAP_RFC1024 | AN_TXENCAP_RFC1024); 641 } 642 (void)an_write_rid(sc, AN_RID_ENCAP, &sc->sc_buf, 643 sizeof(sc->sc_buf.sc_encap)); 644 645 /* Set the WEP Keys */ 646 if (ic->ic_flags & IEEE80211_F_PRIVACY) 647 an_write_wepkey(sc, AN_RID_WEP_VOLATILE, sc->sc_wepkeys, 648 sc->sc_tx_key); 649 650 /* Set the configuration */ 651 #ifdef AN_DEBUG 652 if (an_debug) { 653 printf("write config:\n"); 654 for (i = 0; i < sizeof(sc->sc_config) / 2; i++) 655 printf(" %04x", ((u_int16_t *)&sc->sc_config)[i]); 656 printf("\n"); 657 } 658 #endif 659 if ((error = an_write_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, 660 sizeof(sc->sc_config))) != 0) { 661 printf("%s: failed to write config\n", ifp->if_xname); 662 an_stop(ifp, 1); 663 return error; 664 } 665 666 /* Enable the MAC */ 667 if (an_cmd(sc, AN_CMD_ENABLE, 0)) { 668 aprint_error_dev(sc->sc_dev, "failed to enable MAC\n"); 669 an_stop(ifp, 1); 670 return ENXIO; 671 } 672 if (ifp->if_flags & IFF_PROMISC) 673 an_cmd(sc, AN_CMD_SET_MODE, 0xffff); 674 675 ifp->if_flags |= IFF_RUNNING; 676 ifp->if_flags &= ~IFF_OACTIVE; 677 ic->ic_state = IEEE80211_S_INIT; 678 if (ic->ic_opmode == IEEE80211_M_MONITOR) 679 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 680 681 /* enable interrupts */ 682 CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); 683 return 0; 684 } 685 686 static void 687 an_stop(struct ifnet *ifp, int disable) 688 { 689 struct an_softc *sc = ifp->if_softc; 690 int i, s; 691 692 if (!sc->sc_enabled) 693 return; 694 695 DPRINTF(("an_stop: disable %d\n", disable)); 696 697 s = splnet(); 698 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 699 if (device_is_active(sc->sc_dev)) { 700 an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0); 701 CSR_WRITE_2(sc, AN_INT_EN, 0); 702 an_cmd(sc, AN_CMD_DISABLE, 0); 703 704 for (i = 0; i < AN_TX_RING_CNT; i++) 705 an_cmd(sc, AN_CMD_DEALLOC_MEM, sc->sc_txd[i].d_fid); 706 } 707 708 sc->sc_tx_timer = 0; 709 ifp->if_timer = 0; 710 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 711 712 if (disable) { 713 if (sc->sc_disable) 714 (*sc->sc_disable)(sc); 715 sc->sc_enabled = 0; 716 } 717 splx(s); 718 } 719 720 static void 721 an_start(struct ifnet *ifp) 722 { 723 struct an_softc *sc = (struct an_softc *)ifp->if_softc; 724 struct ieee80211com *ic = &sc->sc_ic; 725 struct ieee80211_node *ni; 726 struct ieee80211_frame *wh; 727 struct an_txframe frmhdr; 728 struct ether_header *eh; 729 struct mbuf *m; 730 u_int16_t len; 731 int cur, fid; 732 733 if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) { 734 DPRINTF(("an_start: noop: enabled %d invalid %d\n", 735 sc->sc_enabled, !device_is_active(sc->sc_dev))); 736 return; 737 } 738 739 memset(&frmhdr, 0, sizeof(frmhdr)); 740 cur = sc->sc_txnext; 741 for (;;) { 742 if (ic->ic_state != IEEE80211_S_RUN) { 743 DPRINTF(("an_start: not running %d\n", ic->ic_state)); 744 break; 745 } 746 IFQ_POLL(&ifp->if_snd, m); 747 if (m == NULL) { 748 DPRINTF2(("an_start: no pending mbuf\n")); 749 break; 750 } 751 if (sc->sc_txd[cur].d_inuse) { 752 DPRINTF2(("an_start: %x/%d busy\n", 753 sc->sc_txd[cur].d_fid, cur)); 754 ifp->if_flags |= IFF_OACTIVE; 755 break; 756 } 757 IFQ_DEQUEUE(&ifp->if_snd, m); 758 ifp->if_opackets++; 759 bpf_mtap(ifp, m, BPF_D_OUT); 760 eh = mtod(m, struct ether_header *); 761 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 762 if (ni == NULL) { 763 /* NB: ieee80211_find_txnode does stat+msg */ 764 goto bad; 765 } 766 if ((m = ieee80211_encap(ic, m, ni)) == NULL) 767 goto bad; 768 ieee80211_free_node(ni); 769 bpf_mtap3(ic->ic_rawbpf, m, BPF_D_OUT); 770 771 wh = mtod(m, struct ieee80211_frame *); 772 if (ic->ic_flags & IEEE80211_F_PRIVACY) 773 wh->i_fc[1] |= IEEE80211_FC1_WEP; 774 m_copydata(m, 0, sizeof(struct ieee80211_frame), 775 (void *)&frmhdr.an_whdr); 776 777 /* insert payload length in front of llc/snap */ 778 len = htons(m->m_pkthdr.len - sizeof(struct ieee80211_frame)); 779 m_adj(m, sizeof(struct ieee80211_frame) - sizeof(len)); 780 if (mtod(m, u_long) & 0x01) 781 memcpy(mtod(m, void *), &len, sizeof(len)); 782 else 783 *mtod(m, u_int16_t *) = len; 784 785 /* 786 * XXX Aironet firmware apparently convert the packet 787 * with longer than 1500 bytes in length into LLC/SNAP. 788 * If we have 1500 bytes in ethernet payload, it is 789 * 1508 bytes including LLC/SNAP and will be inserted 790 * additional LLC/SNAP header with 1501-1508 in its 791 * ethertype !! 792 * So we skip LLC/SNAP header and force firmware to 793 * convert it to LLC/SNAP again. 794 */ 795 m_adj(m, sizeof(struct llc)); 796 797 frmhdr.an_tx_ctl = htole16(AN_TXCTL_80211); 798 frmhdr.an_tx_payload_len = htole16(m->m_pkthdr.len); 799 frmhdr.an_gaplen = htole16(AN_TXGAP_802_11); 800 801 if (ic->ic_fixed_rate != -1) 802 frmhdr.an_tx_rate = 803 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 804 ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 805 else 806 frmhdr.an_tx_rate = 0; 807 808 /* XXX radiotap for tx must be completed */ 809 if (sc->sc_drvbpf) { 810 struct an_tx_radiotap_header *tap = &sc->sc_txtap; 811 tap->at_rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate]; 812 tap->at_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 813 tap->at_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 814 /* TBD tap->wt_flags */ 815 bpf_mtap2(sc->sc_drvbpf, tap, tap->at_ihdr.it_len, m, 816 BPF_D_OUT); 817 } 818 819 #ifdef AN_DEBUG 820 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == 821 (IFF_DEBUG|IFF_LINK2)) { 822 ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, 823 sizeof(struct ieee80211_frame), -1, 0); 824 printf(" txctl 0x%x plen %u\n", 825 le16toh(frmhdr.an_tx_ctl), 826 le16toh(frmhdr.an_tx_payload_len)); 827 } 828 #endif 829 if (sizeof(frmhdr) + AN_TXGAP_802_11 + sizeof(len) + 830 m->m_pkthdr.len > AN_TX_MAX_LEN) 831 goto bad; 832 833 fid = sc->sc_txd[cur].d_fid; 834 if (an_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) 835 goto bad; 836 /* dummy write to avoid seek. */ 837 an_write_bap(sc, fid, -1, &frmhdr, AN_TXGAP_802_11); 838 an_mwrite_bap(sc, fid, -1, m, m->m_pkthdr.len); 839 m_freem(m); 840 841 DPRINTF2(("an_start: send %zu byte via %x/%d\n", 842 ntohs(len) + sizeof(struct ieee80211_frame), 843 fid, cur)); 844 sc->sc_txd[cur].d_inuse = 1; 845 if (an_cmd(sc, AN_CMD_TX, fid)) { 846 printf("%s: xmit failed\n", ifp->if_xname); 847 sc->sc_txd[cur].d_inuse = 0; 848 continue; 849 } 850 sc->sc_tx_timer = 5; 851 ifp->if_timer = 1; 852 AN_INC(cur, AN_TX_RING_CNT); 853 sc->sc_txnext = cur; 854 continue; 855 bad: 856 ifp->if_oerrors++; 857 m_freem(m); 858 } 859 } 860 861 static int 862 an_reset(struct an_softc *sc) 863 { 864 865 DPRINTF(("an_reset\n")); 866 867 if (!sc->sc_enabled) 868 return ENXIO; 869 870 an_cmd(sc, AN_CMD_ENABLE, 0); 871 an_cmd(sc, AN_CMD_FW_RESTART, 0); 872 an_cmd(sc, AN_CMD_NOOP2, 0); 873 874 if (an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0) == ETIMEDOUT) { 875 aprint_error_dev(sc->sc_dev, "reset failed\n"); 876 return ETIMEDOUT; 877 } 878 879 an_cmd(sc, AN_CMD_DISABLE, 0); 880 return 0; 881 } 882 883 static void 884 an_watchdog(struct ifnet *ifp) 885 { 886 struct an_softc *sc = ifp->if_softc; 887 888 if (!sc->sc_enabled) 889 return; 890 891 if (sc->sc_tx_timer) { 892 if (--sc->sc_tx_timer == 0) { 893 printf("%s: device timeout\n", ifp->if_xname); 894 ifp->if_oerrors++; 895 an_init(ifp); 896 return; 897 } 898 ifp->if_timer = 1; 899 } 900 ieee80211_watchdog(&sc->sc_ic); 901 } 902 903 static int 904 an_ioctl(struct ifnet *ifp, u_long command, void *data) 905 { 906 struct an_softc *sc = ifp->if_softc; 907 int s, error = 0; 908 909 if (!device_is_active(sc->sc_dev)) 910 return ENXIO; 911 912 s = splnet(); 913 914 switch (command) { 915 case SIOCSIFFLAGS: 916 if ((error = ifioctl_common(ifp, command, data)) != 0) 917 break; 918 if (ifp->if_flags & IFF_UP) { 919 if (sc->sc_enabled) { 920 /* 921 * To avoid rescanning another access point, 922 * do not call an_init() here. Instead, only 923 * reflect promisc mode settings. 924 */ 925 error = an_cmd(sc, AN_CMD_SET_MODE, 926 (ifp->if_flags & IFF_PROMISC) ? 0xffff : 0); 927 } else 928 error = an_init(ifp); 929 } else if (sc->sc_enabled) 930 an_stop(ifp, 1); 931 break; 932 case SIOCADDMULTI: 933 case SIOCDELMULTI: 934 error = ether_ioctl(ifp, command, data); 935 if (error == ENETRESET) { 936 /* we don't have multicast filter. */ 937 error = 0; 938 } 939 break; 940 case SIOCS80211NWKEY: 941 error = an_set_nwkey(sc, (struct ieee80211_nwkey *)data); 942 break; 943 case SIOCG80211NWKEY: 944 error = an_get_nwkey(sc, (struct ieee80211_nwkey *)data); 945 break; 946 default: 947 error = ieee80211_ioctl(&sc->sc_ic, command, data); 948 break; 949 } 950 if (error == ENETRESET) { 951 if (sc->sc_enabled) 952 error = an_init(ifp); 953 else 954 error = 0; 955 } 956 splx(s); 957 return error; 958 } 959 960 /* TBD factor with ieee80211_media_change */ 961 static int 962 an_media_change(struct ifnet *ifp) 963 { 964 struct an_softc *sc = ifp->if_softc; 965 struct ieee80211com *ic = &sc->sc_ic; 966 struct ifmedia_entry *ime; 967 enum ieee80211_opmode newmode; 968 int i, rate, error = 0; 969 970 ime = ic->ic_media.ifm_cur; 971 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 972 i = -1; 973 } else { 974 struct ieee80211_rateset *rs = 975 &ic->ic_sup_rates[IEEE80211_MODE_11B]; 976 rate = ieee80211_media2rate(ime->ifm_media); 977 if (rate == 0) 978 return EINVAL; 979 for (i = 0; i < rs->rs_nrates; i++) { 980 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 981 break; 982 } 983 if (i == rs->rs_nrates) 984 return EINVAL; 985 } 986 if (ic->ic_fixed_rate != i) { 987 ic->ic_fixed_rate = i; 988 error = ENETRESET; 989 } 990 991 if (ime->ifm_media & IFM_IEEE80211_ADHOC) 992 newmode = IEEE80211_M_IBSS; 993 else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 994 newmode = IEEE80211_M_HOSTAP; 995 else if (ime->ifm_media & IFM_IEEE80211_MONITOR) 996 newmode = IEEE80211_M_MONITOR; 997 else 998 newmode = IEEE80211_M_STA; 999 if (ic->ic_opmode != newmode) { 1000 ic->ic_opmode = newmode; 1001 error = ENETRESET; 1002 } 1003 if (error == ENETRESET) { 1004 if (sc->sc_enabled) 1005 error = an_init(ifp); 1006 else 1007 error = 0; 1008 } 1009 ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); 1010 1011 return error; 1012 } 1013 1014 static void 1015 an_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1016 { 1017 struct an_softc *sc = ifp->if_softc; 1018 struct ieee80211com *ic = &sc->sc_ic; 1019 int rate, buflen; 1020 1021 if (sc->sc_enabled == 0) { 1022 imr->ifm_active = IFM_IEEE80211 | IFM_NONE; 1023 imr->ifm_status = 0; 1024 return; 1025 } 1026 1027 imr->ifm_status = IFM_AVALID; 1028 imr->ifm_active = IFM_IEEE80211; 1029 if (ic->ic_state == IEEE80211_S_RUN) 1030 imr->ifm_status |= IFM_ACTIVE; 1031 buflen = sizeof(sc->sc_buf); 1032 if (ic->ic_fixed_rate != -1) 1033 rate = ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 1034 ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 1035 else if (an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen) != 0) 1036 rate = 0; 1037 else 1038 rate = le16toh(sc->sc_buf.sc_status.an_current_tx_rate); 1039 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 1040 switch (ic->ic_opmode) { 1041 case IEEE80211_M_STA: 1042 break; 1043 case IEEE80211_M_IBSS: 1044 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1045 break; 1046 case IEEE80211_M_HOSTAP: 1047 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1048 break; 1049 case IEEE80211_M_MONITOR: 1050 imr->ifm_active |= IFM_IEEE80211_MONITOR; 1051 break; 1052 default: 1053 break; 1054 } 1055 } 1056 1057 static int 1058 an_set_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1059 { 1060 int error; 1061 struct ieee80211com *ic = &sc->sc_ic; 1062 u_int16_t prevauth; 1063 1064 error = 0; 1065 prevauth = sc->sc_config.an_authtype; 1066 1067 switch (nwkey->i_wepon) { 1068 case IEEE80211_NWKEY_OPEN: 1069 sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN; 1070 ic->ic_flags &= ~IEEE80211_F_PRIVACY; 1071 break; 1072 1073 case IEEE80211_NWKEY_WEP: 1074 case IEEE80211_NWKEY_WEP | IEEE80211_NWKEY_PERSIST: 1075 error = an_set_nwkey_wep(sc, nwkey); 1076 if (error == 0 || error == ENETRESET) { 1077 sc->sc_config.an_authtype = 1078 AN_AUTHTYPE_OPEN | AN_AUTHTYPE_PRIVACY_IN_USE; 1079 ic->ic_flags |= IEEE80211_F_PRIVACY; 1080 } 1081 break; 1082 1083 case IEEE80211_NWKEY_EAP: 1084 error = an_set_nwkey_eap(sc, nwkey); 1085 if (error == 0 || error == ENETRESET) { 1086 sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN | 1087 AN_AUTHTYPE_PRIVACY_IN_USE | AN_AUTHTYPE_LEAP; 1088 ic->ic_flags |= IEEE80211_F_PRIVACY; 1089 } 1090 break; 1091 default: 1092 error = EINVAL; 1093 break; 1094 } 1095 if (error == 0 && prevauth != sc->sc_config.an_authtype) 1096 error = ENETRESET; 1097 return error; 1098 } 1099 1100 static int 1101 an_set_nwkey_wep(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1102 { 1103 int i, txkey, anysetkey, needreset, error; 1104 struct an_wepkey keys[IEEE80211_WEP_NKID]; 1105 1106 error = 0; 1107 memset(keys, 0, sizeof(keys)); 1108 anysetkey = needreset = 0; 1109 1110 /* load argument and sanity check */ 1111 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1112 keys[i].an_wep_keylen = nwkey->i_key[i].i_keylen; 1113 if (keys[i].an_wep_keylen < 0) 1114 continue; 1115 if (keys[i].an_wep_keylen != 0 && 1116 keys[i].an_wep_keylen < IEEE80211_WEP_KEYLEN) 1117 return EINVAL; 1118 if (keys[i].an_wep_keylen > sizeof(keys[i].an_wep_key)) 1119 return EINVAL; 1120 if ((error = copyin(nwkey->i_key[i].i_keydat, 1121 keys[i].an_wep_key, keys[i].an_wep_keylen)) != 0) 1122 return error; 1123 anysetkey++; 1124 } 1125 txkey = nwkey->i_defkid - 1; 1126 if (txkey >= 0) { 1127 if (txkey >= IEEE80211_WEP_NKID) 1128 return EINVAL; 1129 /* default key must have a valid value */ 1130 if (keys[txkey].an_wep_keylen == 0 || 1131 (keys[txkey].an_wep_keylen < 0 && 1132 sc->sc_perskeylen[txkey] == 0)) 1133 return EINVAL; 1134 anysetkey++; 1135 } 1136 DPRINTF(("an_set_nwkey_wep: %s: %sold(%d:%d,%d,%d,%d) " 1137 "pers(%d:%d,%d,%d,%d) new(%d:%d,%d,%d,%d)\n", 1138 device_xname(sc->sc_dev), 1139 ((nwkey->i_wepon & IEEE80211_NWKEY_PERSIST) ? "persist: " : ""), 1140 sc->sc_tx_key, 1141 sc->sc_wepkeys[0].an_wep_keylen, sc->sc_wepkeys[1].an_wep_keylen, 1142 sc->sc_wepkeys[2].an_wep_keylen, sc->sc_wepkeys[3].an_wep_keylen, 1143 sc->sc_tx_perskey, 1144 sc->sc_perskeylen[0], sc->sc_perskeylen[1], 1145 sc->sc_perskeylen[2], sc->sc_perskeylen[3], 1146 txkey, 1147 keys[0].an_wep_keylen, keys[1].an_wep_keylen, 1148 keys[2].an_wep_keylen, keys[3].an_wep_keylen)); 1149 if (!(nwkey->i_wepon & IEEE80211_NWKEY_PERSIST)) { 1150 /* set temporary keys */ 1151 sc->sc_tx_key = txkey; 1152 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1153 if (keys[i].an_wep_keylen < 0) 1154 continue; 1155 memcpy(&sc->sc_wepkeys[i], &keys[i], sizeof(keys[i])); 1156 } 1157 } else { 1158 /* set persist keys */ 1159 if (anysetkey) { 1160 /* prepare to write nvram */ 1161 if (!sc->sc_enabled) { 1162 if (sc->sc_enable) 1163 (*sc->sc_enable)(sc); 1164 an_wait(sc); 1165 sc->sc_enabled = 1; 1166 error = an_write_wepkey(sc, 1167 AN_RID_WEP_PERSISTENT, keys, txkey); 1168 if (sc->sc_disable) 1169 (*sc->sc_disable)(sc); 1170 sc->sc_enabled = 0; 1171 } else { 1172 an_cmd(sc, AN_CMD_DISABLE, 0); 1173 error = an_write_wepkey(sc, 1174 AN_RID_WEP_PERSISTENT, keys, txkey); 1175 an_cmd(sc, AN_CMD_ENABLE, 0); 1176 } 1177 if (error) 1178 return error; 1179 } 1180 if (txkey >= 0) 1181 sc->sc_tx_perskey = txkey; 1182 if (sc->sc_tx_key >= 0) { 1183 sc->sc_tx_key = -1; 1184 needreset++; 1185 } 1186 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1187 if (sc->sc_wepkeys[i].an_wep_keylen >= 0) { 1188 memset(&sc->sc_wepkeys[i].an_wep_key, 0, 1189 sizeof(sc->sc_wepkeys[i].an_wep_key)); 1190 sc->sc_wepkeys[i].an_wep_keylen = -1; 1191 needreset++; 1192 } 1193 if (keys[i].an_wep_keylen >= 0) 1194 sc->sc_perskeylen[i] = keys[i].an_wep_keylen; 1195 } 1196 } 1197 if (needreset) { 1198 /* firmware restart to reload persistent key */ 1199 an_reset(sc); 1200 } 1201 if (anysetkey || needreset) 1202 error = ENETRESET; 1203 return error; 1204 } 1205 1206 static int 1207 an_set_nwkey_eap(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1208 { 1209 int i, error, len; 1210 struct ifnet *ifp = &sc->sc_if; 1211 struct an_rid_leapkey *key; 1212 u_int16_t unibuf[sizeof(key->an_key)]; 1213 static const int leap_rid[] = { AN_RID_LEAP_PASS, AN_RID_LEAP_USER }; 1214 MD4_CTX ctx; 1215 1216 error = 0; 1217 1218 if (nwkey->i_key[0].i_keydat == NULL && 1219 nwkey->i_key[1].i_keydat == NULL) 1220 return 0; 1221 if (!sc->sc_enabled) 1222 return ENXIO; 1223 an_cmd(sc, AN_CMD_DISABLE, 0); 1224 key = &sc->sc_buf.sc_leapkey; 1225 for (i = 0; i < 2; i++) { 1226 if (nwkey->i_key[i].i_keydat == NULL) 1227 continue; 1228 len = nwkey->i_key[i].i_keylen; 1229 if (len > sizeof(key->an_key)) 1230 return EINVAL; 1231 memset(key, 0, sizeof(*key)); 1232 key->an_key_len = htole16(len); 1233 if ((error = copyin(nwkey->i_key[i].i_keydat, key->an_key, 1234 len)) != 0) 1235 return error; 1236 if (i == 1) { 1237 /* 1238 * Cisco seems to use PasswordHash and PasswordHashHash 1239 * in RFC-2759 (MS-CHAP-V2). 1240 */ 1241 memset(unibuf, 0, sizeof(unibuf)); 1242 /* XXX: convert password to unicode */ 1243 for (i = 0; i < len; i++) 1244 unibuf[i] = key->an_key[i]; 1245 /* set PasswordHash */ 1246 MD4Init(&ctx); 1247 MD4Update(&ctx, (u_int8_t *)unibuf, len * 2); 1248 MD4Final(key->an_key, &ctx); 1249 /* set PasswordHashHash */ 1250 MD4Init(&ctx); 1251 MD4Update(&ctx, key->an_key, 16); 1252 MD4Final(key->an_key + 16, &ctx); 1253 key->an_key_len = htole16(32); 1254 } 1255 if ((error = an_write_rid(sc, leap_rid[i], key, 1256 sizeof(*key))) != 0) { 1257 printf("%s: LEAP set failed\n", ifp->if_xname); 1258 return error; 1259 } 1260 } 1261 error = an_cmd(sc, AN_CMD_ENABLE, 0); 1262 if (error) 1263 printf("%s: an_set_nwkey: failed to enable MAC\n", 1264 ifp->if_xname); 1265 else 1266 error = ENETRESET; 1267 return error; 1268 } 1269 1270 static int 1271 an_get_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1272 { 1273 int i, error; 1274 1275 error = 0; 1276 if (sc->sc_config.an_authtype & AN_AUTHTYPE_LEAP) 1277 nwkey->i_wepon = IEEE80211_NWKEY_EAP; 1278 else if (sc->sc_config.an_authtype & AN_AUTHTYPE_PRIVACY_IN_USE) 1279 nwkey->i_wepon = IEEE80211_NWKEY_WEP; 1280 else 1281 nwkey->i_wepon = IEEE80211_NWKEY_OPEN; 1282 if (sc->sc_tx_key == -1) 1283 nwkey->i_defkid = sc->sc_tx_perskey + 1; 1284 else 1285 nwkey->i_defkid = sc->sc_tx_key + 1; 1286 if (nwkey->i_key[0].i_keydat == NULL) 1287 return 0; 1288 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1289 if (nwkey->i_key[i].i_keydat == NULL) 1290 continue; 1291 /* do not show any keys to non-root user */ 1292 /* XXX-elad: why is this inside a loop? */ 1293 if ((error = kauth_authorize_network(curlwp->l_cred, 1294 KAUTH_NETWORK_INTERFACE, 1295 KAUTH_REQ_NETWORK_INTERFACE_GETPRIV, sc->sc_ic.ic_ifp, 1296 KAUTH_ARG(SIOCG80211NWKEY), NULL)) != 0) 1297 break; 1298 nwkey->i_key[i].i_keylen = sc->sc_wepkeys[i].an_wep_keylen; 1299 if (nwkey->i_key[i].i_keylen < 0) { 1300 if (sc->sc_perskeylen[i] == 0) 1301 nwkey->i_key[i].i_keylen = 0; 1302 continue; 1303 } 1304 if ((error = copyout(sc->sc_wepkeys[i].an_wep_key, 1305 nwkey->i_key[i].i_keydat, 1306 sc->sc_wepkeys[i].an_wep_keylen)) != 0) 1307 break; 1308 } 1309 return error; 1310 } 1311 1312 static int 1313 an_write_wepkey(struct an_softc *sc, int type, struct an_wepkey *keys, int kid) 1314 { 1315 int i, error; 1316 struct an_rid_wepkey *akey; 1317 1318 error = 0; 1319 akey = &sc->sc_buf.sc_wepkey; 1320 memset(akey, 0, sizeof(struct an_rid_wepkey)); 1321 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1322 if (keys[i].an_wep_keylen < 0 || 1323 keys[i].an_wep_keylen > sizeof(akey->an_key)) 1324 continue; 1325 akey->an_key_len = htole16(keys[i].an_wep_keylen); 1326 akey->an_key_index = htole16(i); 1327 akey->an_mac_addr[0] = 1; /* default mac */ 1328 memcpy(akey->an_key, keys[i].an_wep_key, keys[i].an_wep_keylen); 1329 if ((error = an_write_rid(sc, type, akey, sizeof(*akey))) != 0) 1330 return error; 1331 } 1332 if (kid >= 0) { 1333 akey->an_key_index = htole16(0xffff); 1334 akey->an_mac_addr[0] = kid; 1335 akey->an_key_len = htole16(0); 1336 memset(akey->an_key, 0, sizeof(akey->an_key)); 1337 error = an_write_rid(sc, type, akey, sizeof(*akey)); 1338 } 1339 return error; 1340 } 1341 1342 #ifdef AN_DEBUG 1343 static void 1344 an_dump_pkt(const char *devname, struct mbuf *m) 1345 { 1346 int col, col0, i; 1347 uint8_t *pkt = mtod(m, uint8_t *); 1348 const char *delim = ""; 1349 int delimw = 0; 1350 1351 printf("%s: pkt ", devname); 1352 col = col0 = strlen(devname) + strlen(": pkt "); 1353 for (i = 0; i < m->m_len; i++) { 1354 printf("%s%02x", delim, pkt[i]); 1355 delim = ":"; 1356 delimw = 1; 1357 col += delimw + 2; 1358 if (col >= 72) { 1359 printf("\n%*s", col0, ""); 1360 col = col0; 1361 delim = ""; 1362 delimw = 0; 1363 } 1364 } 1365 if (col != 0) 1366 printf("\n"); 1367 } 1368 #endif /* AN_DEBUG */ 1369 1370 /* 1371 * Low level functions 1372 */ 1373 1374 static void 1375 an_rx_intr(struct an_softc *sc) 1376 { 1377 struct ieee80211com *ic = &sc->sc_ic; 1378 struct ifnet *ifp = &sc->sc_if; 1379 struct ieee80211_frame_min *wh; 1380 struct ieee80211_node *ni; 1381 struct an_rxframe frmhdr; 1382 struct mbuf *m; 1383 u_int16_t status; 1384 int fid, gaplen, len, off, s; 1385 uint8_t *gap; 1386 1387 fid = CSR_READ_2(sc, AN_RX_FID); 1388 1389 /* First read in the frame header */ 1390 if (an_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 1391 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1392 ifp->if_ierrors++; 1393 DPRINTF(("an_rx_intr: read fid %x failed\n", fid)); 1394 return; 1395 } 1396 1397 #ifdef AN_DEBUG 1398 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) { 1399 ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, 1400 sizeof(struct ieee80211_frame), frmhdr.an_rx_rate, 1401 frmhdr.an_rx_signal_strength); 1402 printf(" time 0x%x status 0x%x plen %u chan %u" 1403 " plcp %02x %02x %02x %02x gap %u\n", 1404 le32toh(frmhdr.an_rx_time), le16toh(frmhdr.an_rx_status), 1405 le16toh(frmhdr.an_rx_payload_len), frmhdr.an_rx_chan, 1406 frmhdr.an_plcp_hdr[0], frmhdr.an_plcp_hdr[1], 1407 frmhdr.an_plcp_hdr[2], frmhdr.an_plcp_hdr[3], 1408 le16toh(frmhdr.an_gaplen)); 1409 } 1410 #endif 1411 1412 status = le16toh(frmhdr.an_rx_status); 1413 if ((status & AN_STAT_ERRSTAT) != 0 && 1414 ic->ic_opmode != IEEE80211_M_MONITOR) { 1415 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1416 ifp->if_ierrors++; 1417 DPRINTF(("an_rx_intr: fid %x status %x\n", fid, status)); 1418 return; 1419 } 1420 1421 /* the payload length field includes a 16-bit "mystery field" */ 1422 len = le16toh(frmhdr.an_rx_payload_len) - sizeof(uint16_t); 1423 off = ALIGN(sizeof(struct ieee80211_frame)); 1424 1425 if (off + len > MCLBYTES) { 1426 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1427 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1428 ifp->if_ierrors++; 1429 DPRINTF(("an_rx_intr: oversized packet %d\n", len)); 1430 return; 1431 } 1432 len = 0; 1433 } 1434 1435 MGETHDR(m, M_DONTWAIT, MT_DATA); 1436 if (m == NULL) { 1437 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1438 ifp->if_ierrors++; 1439 DPRINTF(("an_rx_intr: MGET failed\n")); 1440 return; 1441 } 1442 if (off + len + AN_GAPLEN_MAX > MHLEN) { 1443 MCLGET(m, M_DONTWAIT); 1444 if ((m->m_flags & M_EXT) == 0) { 1445 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1446 m_freem(m); 1447 ifp->if_ierrors++; 1448 DPRINTF(("an_rx_intr: MCLGET failed\n")); 1449 return; 1450 } 1451 } 1452 m->m_data += off - sizeof(struct ieee80211_frame); 1453 1454 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1455 gaplen = le16toh(frmhdr.an_gaplen); 1456 if (gaplen > AN_GAPLEN_MAX) { 1457 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1458 m_freem(m); 1459 ifp->if_ierrors++; 1460 DPRINTF(("%s: gap too long\n", __func__)); 1461 return; 1462 } 1463 /* 1464 * We don't need the 16-bit mystery field (payload length?), 1465 * so read it into the region reserved for the 802.11 header. 1466 * 1467 * When Cisco Aironet 350 cards w/ firmware version 5 or 1468 * greater operate with certain Cisco 350 APs, 1469 * the "gap" is filled with the SNAP header. Read 1470 * it in after the 802.11 header. 1471 */ 1472 gap = m->m_data + sizeof(struct ieee80211_frame) - 1473 sizeof(uint16_t); 1474 an_read_bap(sc, fid, -1, gap, gaplen + sizeof(u_int16_t)); 1475 #ifdef AN_DEBUG 1476 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == 1477 (IFF_DEBUG|IFF_LINK2)) { 1478 int i; 1479 printf(" gap&len"); 1480 for (i = 0; i < gaplen + sizeof(u_int16_t); i++) 1481 printf(" %02x", gap[i]); 1482 printf("\n"); 1483 } 1484 #endif 1485 } else 1486 gaplen = 0; 1487 1488 an_read_bap(sc, fid, -1, 1489 m->m_data + sizeof(struct ieee80211_frame) + gaplen, len); 1490 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + gaplen + 1491 len; 1492 1493 memcpy(m->m_data, &frmhdr.an_whdr, sizeof(struct ieee80211_frame)); 1494 m_set_rcvif(m, ifp); 1495 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1496 1497 s = splnet(); 1498 1499 if (sc->sc_drvbpf) { 1500 struct an_rx_radiotap_header *tap = &sc->sc_rxtap; 1501 1502 tap->ar_rate = frmhdr.an_rx_rate; 1503 tap->ar_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1504 tap->ar_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1505 tap->ar_antsignal = frmhdr.an_rx_signal_strength; 1506 if ((le16toh(frmhdr.an_rx_status) & AN_STAT_BADCRC) || 1507 (le16toh(frmhdr.an_rx_status) & AN_STAT_ERRSTAT) || 1508 (le16toh(frmhdr.an_rx_status) & AN_STAT_UNDECRYPTABLE)) 1509 tap->ar_flags |= IEEE80211_RADIOTAP_F_BADFCS; 1510 1511 bpf_mtap2(sc->sc_drvbpf, tap, tap->ar_ihdr.it_len, m, 1512 BPF_D_IN); 1513 } 1514 wh = mtod(m, struct ieee80211_frame_min *); 1515 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1516 /* 1517 * WEP is decrypted by hardware. Clear WEP bit 1518 * header for ieee80211_input(). 1519 */ 1520 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 1521 } 1522 1523 #ifdef AN_DEBUG 1524 if (an_debug > 1) 1525 an_dump_pkt(device_xname(sc->sc_dev), m); 1526 #endif /* AN_DEBUG */ 1527 1528 ni = ieee80211_find_rxnode(ic, wh); 1529 ieee80211_input(ic, m, ni, frmhdr.an_rx_signal_strength, 1530 le32toh(frmhdr.an_rx_time)); 1531 ieee80211_free_node(ni); 1532 1533 splx(s); 1534 } 1535 1536 static void 1537 an_tx_intr(struct an_softc *sc, int status) 1538 { 1539 struct ifnet *ifp = &sc->sc_if; 1540 int cur, fid, s; 1541 1542 s = splnet(); 1543 1544 sc->sc_tx_timer = 0; 1545 ifp->if_flags &= ~IFF_OACTIVE; 1546 1547 fid = CSR_READ_2(sc, AN_TX_CMP_FID); 1548 CSR_WRITE_2(sc, AN_EVENT_ACK, status & (AN_EV_TX | AN_EV_TX_EXC)); 1549 1550 if (status & AN_EV_TX_EXC) 1551 ifp->if_oerrors++; 1552 else 1553 ifp->if_opackets++; 1554 1555 cur = sc->sc_txcur; 1556 if (sc->sc_txd[cur].d_fid == fid) { 1557 sc->sc_txd[cur].d_inuse = 0; 1558 DPRINTF2(("an_tx_intr: sent %x/%d\n", fid, cur)); 1559 AN_INC(cur, AN_TX_RING_CNT); 1560 sc->sc_txcur = cur; 1561 } else { 1562 for (cur = 0; cur < AN_TX_RING_CNT; cur++) { 1563 if (fid == sc->sc_txd[cur].d_fid) { 1564 sc->sc_txd[cur].d_inuse = 0; 1565 break; 1566 } 1567 } 1568 if (ifp->if_flags & IFF_DEBUG) 1569 printf("%s: tx mismatch: " 1570 "expected %x(%d), actual %x(%d)\n", 1571 device_xname(sc->sc_dev), 1572 sc->sc_txd[sc->sc_txcur].d_fid, sc->sc_txcur, 1573 fid, cur); 1574 } 1575 1576 splx(s); 1577 } 1578 1579 static void 1580 an_linkstat_intr(struct an_softc *sc) 1581 { 1582 struct ieee80211com *ic = &sc->sc_ic; 1583 u_int16_t status; 1584 int s; 1585 1586 status = CSR_READ_2(sc, AN_LINKSTAT); 1587 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_LINKSTAT); 1588 DPRINTF(("an_linkstat_intr: status 0x%x\n", status)); 1589 1590 s = splnet(); 1591 if (status == AN_LINKSTAT_ASSOCIATED) { 1592 if (ic->ic_state != IEEE80211_S_RUN || 1593 ic->ic_opmode == IEEE80211_M_IBSS) 1594 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1595 } else { 1596 if (ic->ic_opmode == IEEE80211_M_STA) 1597 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1598 } 1599 splx(s); 1600 } 1601 1602 /* Must be called at proper protection level! */ 1603 static int 1604 an_cmd(struct an_softc *sc, int cmd, int val) 1605 { 1606 int i, status; 1607 1608 /* make sure that previous command completed */ 1609 if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) { 1610 if (sc->sc_if.if_flags & IFF_DEBUG) 1611 printf("%s: command 0x%x busy\n", device_xname(sc->sc_dev), 1612 CSR_READ_2(sc, AN_COMMAND)); 1613 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); 1614 } 1615 1616 CSR_WRITE_2(sc, AN_PARAM0, val); 1617 CSR_WRITE_2(sc, AN_PARAM1, 0); 1618 CSR_WRITE_2(sc, AN_PARAM2, 0); 1619 CSR_WRITE_2(sc, AN_COMMAND, cmd); 1620 1621 if (cmd == AN_CMD_FW_RESTART) { 1622 /* XXX: should sleep here */ 1623 DELAY(100*1000); 1624 } 1625 1626 for (i = 0; i < AN_TIMEOUT; i++) { 1627 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) 1628 break; 1629 DELAY(10); 1630 } 1631 1632 status = CSR_READ_2(sc, AN_STATUS); 1633 1634 /* clear stuck command busy if necessary */ 1635 if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) 1636 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); 1637 1638 /* Ack the command */ 1639 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); 1640 1641 if (i == AN_TIMEOUT) { 1642 if (sc->sc_if.if_flags & IFF_DEBUG) 1643 printf("%s: command 0x%x param 0x%x timeout\n", 1644 device_xname(sc->sc_dev), cmd, val); 1645 return ETIMEDOUT; 1646 } 1647 if (status & AN_STAT_CMD_RESULT) { 1648 if (sc->sc_if.if_flags & IFF_DEBUG) 1649 printf("%s: command 0x%x param 0x%x status 0x%x " 1650 "resp 0x%x 0x%x 0x%x\n", 1651 device_xname(sc->sc_dev), cmd, val, status, 1652 CSR_READ_2(sc, AN_RESP0), CSR_READ_2(sc, AN_RESP1), 1653 CSR_READ_2(sc, AN_RESP2)); 1654 return EIO; 1655 } 1656 1657 return 0; 1658 } 1659 1660 1661 /* 1662 * Wait for firmware come up after power enabled. 1663 */ 1664 static void 1665 an_wait(struct an_softc *sc) 1666 { 1667 int i; 1668 1669 CSR_WRITE_2(sc, AN_COMMAND, AN_CMD_NOOP2); 1670 for (i = 0; i < 3*hz; i++) { 1671 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) 1672 break; 1673 (void)tsleep(sc, PWAIT, "anatch", 1); 1674 } 1675 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); 1676 } 1677 1678 static int 1679 an_seek_bap(struct an_softc *sc, int id, int off) 1680 { 1681 int i, status; 1682 1683 CSR_WRITE_2(sc, AN_SEL0, id); 1684 CSR_WRITE_2(sc, AN_OFF0, off); 1685 1686 for (i = 0; ; i++) { 1687 status = CSR_READ_2(sc, AN_OFF0); 1688 if ((status & AN_OFF_BUSY) == 0) 1689 break; 1690 if (i == AN_TIMEOUT) { 1691 printf("%s: timeout in an_seek_bap to 0x%x/0x%x\n", 1692 device_xname(sc->sc_dev), id, off); 1693 sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ 1694 return ETIMEDOUT; 1695 } 1696 DELAY(10); 1697 } 1698 if (status & AN_OFF_ERR) { 1699 aprint_error_dev(sc->sc_dev, "failed in an_seek_bap to 0x%x/0x%x\n", 1700 id, off); 1701 sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ 1702 return EIO; 1703 } 1704 sc->sc_bap_id = id; 1705 sc->sc_bap_off = off; 1706 return 0; 1707 } 1708 1709 static int 1710 an_read_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) 1711 { 1712 int error, cnt; 1713 1714 if (buflen == 0) 1715 return 0; 1716 if (off == -1) 1717 off = sc->sc_bap_off; 1718 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1719 if ((error = an_seek_bap(sc, id, off)) != 0) 1720 return EIO; 1721 } 1722 1723 cnt = (buflen + 1) / 2; 1724 CSR_READ_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); 1725 sc->sc_bap_off += cnt * 2; 1726 return 0; 1727 } 1728 1729 static int 1730 an_write_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) 1731 { 1732 int error, cnt; 1733 1734 if (buflen == 0) 1735 return 0; 1736 if (off == -1) 1737 off = sc->sc_bap_off; 1738 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1739 if ((error = an_seek_bap(sc, id, off)) != 0) 1740 return EIO; 1741 } 1742 1743 cnt = (buflen + 1) / 2; 1744 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); 1745 sc->sc_bap_off += cnt * 2; 1746 return 0; 1747 } 1748 1749 static int 1750 an_mwrite_bap(struct an_softc *sc, int id, int off, struct mbuf *m, int totlen) 1751 { 1752 int error, len, cnt; 1753 1754 if (off == -1) 1755 off = sc->sc_bap_off; 1756 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1757 if ((error = an_seek_bap(sc, id, off)) != 0) 1758 return EIO; 1759 } 1760 1761 for (len = 0; m != NULL; m = m->m_next) { 1762 if (m->m_len == 0) 1763 continue; 1764 len = min(m->m_len, totlen); 1765 1766 if ((mtod(m, u_long) & 0x1) || (len & 0x1)) { 1767 m_copydata(m, 0, totlen, (void *)&sc->sc_buf.sc_txbuf); 1768 cnt = (totlen + 1) / 2; 1769 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, 1770 sc->sc_buf.sc_val, cnt); 1771 off += cnt * 2; 1772 break; 1773 } 1774 cnt = len / 2; 1775 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, mtod(m, u_int16_t *), 1776 cnt); 1777 off += len; 1778 totlen -= len; 1779 } 1780 sc->sc_bap_off = off; 1781 return 0; 1782 } 1783 1784 static int 1785 an_alloc_fid(struct an_softc *sc, int len, int *idp) 1786 { 1787 int i; 1788 1789 if (an_cmd(sc, AN_CMD_ALLOC_MEM, len)) { 1790 aprint_error_dev(sc->sc_dev, "failed to allocate %d bytes on NIC\n", 1791 len); 1792 return ENOMEM; 1793 } 1794 1795 for (i = 0; i < AN_TIMEOUT; i++) { 1796 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_ALLOC) 1797 break; 1798 if (i == AN_TIMEOUT) { 1799 printf("%s: timeout in alloc\n", device_xname(sc->sc_dev)); 1800 return ETIMEDOUT; 1801 } 1802 DELAY(10); 1803 } 1804 1805 *idp = CSR_READ_2(sc, AN_ALLOC_FID); 1806 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_ALLOC); 1807 return 0; 1808 } 1809 1810 static int 1811 an_read_rid(struct an_softc *sc, int rid, void *buf, int *buflenp) 1812 { 1813 int error; 1814 u_int16_t len; 1815 1816 /* Tell the NIC to enter record read mode. */ 1817 error = an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_READ, rid); 1818 if (error) 1819 return error; 1820 1821 /* length in byte, including length itself */ 1822 error = an_read_bap(sc, rid, 0, &len, sizeof(len)); 1823 if (error) 1824 return error; 1825 1826 len = le16toh(len) - 2; 1827 if (*buflenp < len) { 1828 aprint_error_dev(sc->sc_dev, "record buffer is too small, " 1829 "rid=%x, size=%d, len=%d\n", 1830 rid, *buflenp, len); 1831 return ENOSPC; 1832 } 1833 *buflenp = len; 1834 return an_read_bap(sc, rid, sizeof(len), buf, len); 1835 } 1836 1837 static int 1838 an_write_rid(struct an_softc *sc, int rid, void *buf, int buflen) 1839 { 1840 int error; 1841 u_int16_t len; 1842 1843 /* length in byte, including length itself */ 1844 len = htole16(buflen + 2); 1845 1846 error = an_write_bap(sc, rid, 0, &len, sizeof(len)); 1847 if (error) 1848 return error; 1849 error = an_write_bap(sc, rid, sizeof(len), buf, buflen); 1850 if (error) 1851 return error; 1852 1853 return an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_WRITE, rid); 1854 } 1855 1856 static int 1857 an_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1858 { 1859 struct an_softc *sc = (struct an_softc *)ic->ic_ifp->if_softc; 1860 struct ieee80211_node *ni = ic->ic_bss; 1861 int buflen; 1862 1863 DPRINTF(("an_newstate: %s -> %s\n", ieee80211_state_name[ic->ic_state], 1864 ieee80211_state_name[nstate])); 1865 1866 switch (nstate) { 1867 case IEEE80211_S_INIT: 1868 ic->ic_flags &= ~IEEE80211_F_IBSSON; 1869 return (*sc->sc_newstate)(ic, nstate, arg); 1870 1871 case IEEE80211_S_SCAN: 1872 case IEEE80211_S_AUTH: 1873 case IEEE80211_S_ASSOC: 1874 ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */ 1875 return 0; 1876 1877 case IEEE80211_S_RUN: 1878 buflen = sizeof(sc->sc_buf); 1879 an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen); 1880 IEEE80211_ADDR_COPY(ni->ni_bssid, 1881 sc->sc_buf.sc_status.an_cur_bssid); 1882 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid); 1883 ni->ni_chan = &ic->ic_channels[ 1884 le16toh(sc->sc_buf.sc_status.an_cur_channel)]; 1885 ni->ni_esslen = le16toh(sc->sc_buf.sc_status.an_ssidlen); 1886 if (ni->ni_esslen > IEEE80211_NWID_LEN) 1887 ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ 1888 memcpy(ni->ni_essid, sc->sc_buf.sc_status.an_ssid, 1889 ni->ni_esslen); 1890 ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B]; /*XXX*/ 1891 if (ic->ic_ifp->if_flags & IFF_DEBUG) { 1892 printf("%s: ", device_xname(sc->sc_dev)); 1893 if (ic->ic_opmode == IEEE80211_M_STA) 1894 printf("associated "); 1895 else 1896 printf("synchronized "); 1897 printf("with %s ssid ", ether_sprintf(ni->ni_bssid)); 1898 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 1899 printf(" channel %u start %uMb\n", 1900 le16toh(sc->sc_buf.sc_status.an_cur_channel), 1901 le16toh(sc->sc_buf.sc_status.an_current_tx_rate)/2); 1902 } 1903 break; 1904 1905 default: 1906 break; 1907 } 1908 return (*sc->sc_newstate)(ic, nstate, arg); 1909 } 1910