Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/an.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /* $NetBSD: an.c,v 1.76 2021/09/21 14:40:14 christos 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 1.76 2021/09/21 14:40:14 christos 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_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 if_initialize(ifp); 319 ieee80211_ifattach(ic); 320 ifp->if_percpuq = if_percpuq_create(ifp); 321 if_register(ifp); 322 323 sc->sc_newstate = ic->ic_newstate; 324 ic->ic_newstate = an_newstate; 325 326 ieee80211_media_init(ic, an_media_change, an_media_status); 327 328 /* 329 * radiotap BPF device 330 */ 331 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 332 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 333 334 memset(&sc->sc_rxtapu, 0, sizeof(sc->sc_rxtapu)); 335 sc->sc_rxtap.ar_ihdr.it_len = htole16(sizeof(sc->sc_rxtapu)); 336 sc->sc_rxtap.ar_ihdr.it_present = htole32(AN_RX_RADIOTAP_PRESENT); 337 338 memset(&sc->sc_txtapu, 0, sizeof(sc->sc_txtapu)); 339 sc->sc_txtap.at_ihdr.it_len = htole16(sizeof(sc->sc_txtapu)); 340 sc->sc_txtap.at_ihdr.it_present = htole32(AN_TX_RADIOTAP_PRESENT); 341 342 sc->sc_attached = 1; 343 splx(s); 344 345 ieee80211_announce(ic); 346 return 0; 347 348 fail_2: 349 if (sc->sc_soft_ih != NULL) 350 softint_disestablish(sc->sc_soft_ih); 351 fail_1: 352 splx(s); 353 354 return rv; 355 } 356 357 #ifdef AN_DEBUG 358 /* 359 * Setup sysctl(3) MIB, hw.an.* 360 * 361 * TBD condition CTLFLAG_PERMANENT on being a module or not 362 */ 363 SYSCTL_SETUP(sysctl_an, "sysctl an(4) subtree setup") 364 { 365 int rc; 366 const struct sysctlnode *cnode, *rnode; 367 368 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 369 CTLFLAG_PERMANENT, CTLTYPE_NODE, "an", 370 "Cisco/Aironet 802.11 controls", 371 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 372 goto err; 373 374 /* control debugging printfs */ 375 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 376 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 377 "debug", SYSCTL_DESCR("Enable Cisco/Aironet debugging output"), 378 an_sysctl_verify_debug, 0, &an_debug, 0, 379 CTL_CREATE, CTL_EOL)) != 0) 380 goto err; 381 382 return; 383 err: 384 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 385 } 386 387 static int 388 an_sysctl_verify(SYSCTLFN_ARGS, int lower, int upper) 389 { 390 int error, t; 391 struct sysctlnode node; 392 393 node = *rnode; 394 t = *(int*)rnode->sysctl_data; 395 node.sysctl_data = &t; 396 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 397 if (error || newp == NULL) 398 return (error); 399 400 if (t < lower || t > upper) 401 return (EINVAL); 402 403 *(int*)rnode->sysctl_data = t; 404 405 return (0); 406 } 407 408 static int 409 an_sysctl_verify_debug(SYSCTLFN_ARGS) 410 { 411 return an_sysctl_verify(SYSCTLFN_CALL(rnode), 0, 2); 412 } 413 #endif /* AN_DEBUG */ 414 415 int 416 an_detach(struct an_softc *sc) 417 { 418 struct ieee80211com *ic = &sc->sc_ic; 419 struct ifnet *ifp = &sc->sc_if; 420 int s; 421 422 if (!sc->sc_attached) 423 return 0; 424 425 s = splnet(); 426 an_stop(ifp, 1); 427 ieee80211_ifdetach(ic); 428 if_detach(ifp); 429 if (sc->sc_soft_ih != NULL) 430 softint_disestablish(sc->sc_soft_ih); 431 splx(s); 432 433 return 0; 434 } 435 436 int 437 an_activate(device_t self, enum devact act) 438 { 439 struct an_softc *sc = device_private(self); 440 441 switch (act) { 442 case DVACT_DEACTIVATE: 443 if_deactivate(&sc->sc_if); 444 return 0; 445 default: 446 return EOPNOTSUPP; 447 } 448 } 449 450 int 451 an_intr(void *arg) 452 { 453 struct an_softc *sc = arg; 454 struct ifnet *ifp = &sc->sc_if; 455 456 if (!sc->sc_enabled || !device_is_active(sc->sc_dev) || 457 (ifp->if_flags & IFF_RUNNING) == 0) 458 return 0; 459 460 if ((ifp->if_flags & IFF_UP) == 0) { 461 CSR_WRITE_2(sc, AN_INT_EN, 0); 462 CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); 463 return 1; 464 } 465 466 /* Disable interrupts */ 467 CSR_WRITE_2(sc, AN_INT_EN, 0); 468 469 softint_schedule(sc->sc_soft_ih); 470 return 1; 471 } 472 473 static void 474 an_softintr(void *arg) 475 { 476 struct an_softc *sc = arg; 477 struct ifnet *ifp = &sc->sc_if; 478 int i, s; 479 uint16_t status; 480 481 if (!sc->sc_enabled || !device_is_active(sc->sc_dev) || 482 (ifp->if_flags & IFF_RUNNING) == 0) 483 return; 484 485 if ((ifp->if_flags & IFF_UP) == 0) { 486 CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); 487 return; 488 } 489 490 /* maximum 10 loops per interrupt */ 491 for (i = 0; i < 10; i++) { 492 if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) 493 return; 494 if (CSR_READ_2(sc, AN_SW0) != AN_MAGIC) { 495 DPRINTF(("an_intr: magic number changed: %x\n", 496 CSR_READ_2(sc, AN_SW0))); 497 config_deactivate(sc->sc_dev); 498 return; 499 } 500 status = CSR_READ_2(sc, AN_EVENT_STAT); 501 CSR_WRITE_2(sc, AN_EVENT_ACK, status & ~(AN_INTRS)); 502 if ((status & AN_INTRS) == 0) 503 break; 504 505 if (status & AN_EV_RX) 506 an_rx_intr(sc); 507 508 if (status & (AN_EV_TX | AN_EV_TX_EXC)) 509 an_tx_intr(sc, status); 510 511 if (status & AN_EV_LINKSTAT) 512 an_linkstat_intr(sc); 513 514 if ((ifp->if_flags & IFF_OACTIVE) == 0 && 515 sc->sc_ic.ic_state == IEEE80211_S_RUN && 516 !IFQ_IS_EMPTY(&ifp->if_snd)) { 517 s = splnet(); 518 an_start(ifp); /* in softint */ 519 splx(s); 520 } 521 } 522 if (i == 10) 523 softint_schedule(sc->sc_soft_ih); 524 525 /* Re-enable interrupts */ 526 CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); 527 } 528 529 static int 530 an_init(struct ifnet *ifp) 531 { 532 struct an_softc *sc = ifp->if_softc; 533 struct ieee80211com *ic = &sc->sc_ic; 534 int i, error, fid; 535 536 DPRINTF(("an_init: enabled %d\n", sc->sc_enabled)); 537 if (!sc->sc_enabled) { 538 if (sc->sc_enable) 539 (*sc->sc_enable)(sc); 540 an_wait(sc); 541 sc->sc_enabled = 1; 542 } else { 543 an_stop(ifp, 0); 544 if ((error = an_reset(sc)) != 0) { 545 printf("%s: failed to reset\n", ifp->if_xname); 546 an_stop(ifp, 1); 547 return error; 548 } 549 } 550 CSR_WRITE_2(sc, AN_SW0, AN_MAGIC); 551 552 /* Allocate the TX buffers */ 553 for (i = 0; i < AN_TX_RING_CNT; i++) { 554 if ((error = an_alloc_fid(sc, AN_TX_MAX_LEN, &fid)) != 0) { 555 printf("%s: failed to allocate nic memory\n", 556 ifp->if_xname); 557 an_stop(ifp, 1); 558 return error; 559 } 560 DPRINTF2(("an_init: txbuf %d allocated %x\n", i, fid)); 561 sc->sc_txd[i].d_fid = fid; 562 sc->sc_txd[i].d_inuse = 0; 563 } 564 sc->sc_txcur = sc->sc_txnext = 0; 565 566 IEEE80211_ADDR_COPY(sc->sc_config.an_macaddr, ic->ic_myaddr); 567 sc->sc_config.an_scanmode = htole16(AN_SCANMODE_ACTIVE); 568 sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_OPEN); /*XXX*/ 569 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 570 sc->sc_config.an_authtype |= 571 htole16(AN_AUTHTYPE_PRIVACY_IN_USE); 572 if (sc->sc_use_leap) 573 sc->sc_config.an_authtype |= 574 htole16(AN_AUTHTYPE_LEAP); 575 } 576 sc->sc_config.an_listen_interval = htole16(ic->ic_lintval); 577 sc->sc_config.an_beacon_period = htole16(ic->ic_lintval); 578 if (ic->ic_flags & IEEE80211_F_PMGTON) 579 sc->sc_config.an_psave_mode = htole16(AN_PSAVE_PSP); 580 else 581 sc->sc_config.an_psave_mode = htole16(AN_PSAVE_CAM); 582 sc->sc_config.an_ds_channel = 583 htole16(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 584 585 switch (ic->ic_opmode) { 586 case IEEE80211_M_STA: 587 sc->sc_config.an_opmode = 588 htole16(AN_OPMODE_INFRASTRUCTURE_STATION); 589 sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); 590 break; 591 case IEEE80211_M_IBSS: 592 sc->sc_config.an_opmode = htole16(AN_OPMODE_IBSS_ADHOC); 593 sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); 594 break; 595 case IEEE80211_M_MONITOR: 596 sc->sc_config.an_opmode = 597 htole16(AN_OPMODE_INFRASTRUCTURE_STATION); 598 sc->sc_config.an_rxmode = 599 htole16(AN_RXMODE_80211_MONITOR_ANYBSS); 600 sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_NONE); 601 if (ic->ic_flags & IEEE80211_F_PRIVACY) 602 sc->sc_config.an_authtype |= 603 htole16(AN_AUTHTYPE_PRIVACY_IN_USE | 604 AN_AUTHTYPE_ALLOW_UNENCRYPTED); 605 break; 606 default: 607 printf("%s: bad opmode %d\n", ifp->if_xname, ic->ic_opmode); 608 an_stop(ifp, 1); 609 return EIO; 610 } 611 sc->sc_config.an_rxmode |= htole16(AN_RXMODE_NO_8023_HEADER); 612 613 /* Set the ssid list */ 614 memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_ssidlist)); 615 sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid_len = 616 htole16(ic->ic_des_esslen); 617 if (ic->ic_des_esslen) 618 memcpy(sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid, 619 ic->ic_des_essid, ic->ic_des_esslen); 620 if ((error = an_write_rid(sc, AN_RID_SSIDLIST, &sc->sc_buf, 621 sizeof(sc->sc_buf.sc_ssidlist))) != 0) { 622 printf("%s: failed to write ssid list\n", ifp->if_xname); 623 an_stop(ifp, 1); 624 return error; 625 } 626 627 /* Set the AP list */ 628 memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_aplist)); 629 (void)an_write_rid(sc, AN_RID_APLIST, &sc->sc_buf, 630 sizeof(sc->sc_buf.sc_aplist)); 631 632 /* Set the encapsulation */ 633 for (i = 0; i < AN_ENCAP_NENTS; i++) { 634 sc->sc_buf.sc_encap.an_entry[i].an_ethertype = htole16(0); 635 sc->sc_buf.sc_encap.an_entry[i].an_action = 636 htole16(AN_RXENCAP_RFC1024 | AN_TXENCAP_RFC1024); 637 } 638 (void)an_write_rid(sc, AN_RID_ENCAP, &sc->sc_buf, 639 sizeof(sc->sc_buf.sc_encap)); 640 641 /* Set the WEP Keys */ 642 if (ic->ic_flags & IEEE80211_F_PRIVACY) 643 an_write_wepkey(sc, AN_RID_WEP_VOLATILE, sc->sc_wepkeys, 644 sc->sc_tx_key); 645 646 /* Set the configuration */ 647 #ifdef AN_DEBUG 648 if (an_debug) { 649 printf("write config:\n"); 650 for (i = 0; i < sizeof(sc->sc_config) / 2; i++) 651 printf(" %04x", ((u_int16_t *)&sc->sc_config)[i]); 652 printf("\n"); 653 } 654 #endif 655 if ((error = an_write_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, 656 sizeof(sc->sc_config))) != 0) { 657 printf("%s: failed to write config\n", ifp->if_xname); 658 an_stop(ifp, 1); 659 return error; 660 } 661 662 /* Enable the MAC */ 663 if (an_cmd(sc, AN_CMD_ENABLE, 0)) { 664 aprint_error_dev(sc->sc_dev, "failed to enable MAC\n"); 665 an_stop(ifp, 1); 666 return ENXIO; 667 } 668 if (ifp->if_flags & IFF_PROMISC) 669 an_cmd(sc, AN_CMD_SET_MODE, 0xffff); 670 671 ifp->if_flags |= IFF_RUNNING; 672 ifp->if_flags &= ~IFF_OACTIVE; 673 ic->ic_state = IEEE80211_S_INIT; 674 if (ic->ic_opmode == IEEE80211_M_MONITOR) 675 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 676 677 /* enable interrupts */ 678 CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); 679 return 0; 680 } 681 682 static void 683 an_stop(struct ifnet *ifp, int disable) 684 { 685 struct an_softc *sc = ifp->if_softc; 686 int i, s; 687 688 if (!sc->sc_enabled) 689 return; 690 691 DPRINTF(("an_stop: disable %d\n", disable)); 692 693 s = splnet(); 694 ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); 695 if (device_is_active(sc->sc_dev)) { 696 an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0); 697 CSR_WRITE_2(sc, AN_INT_EN, 0); 698 an_cmd(sc, AN_CMD_DISABLE, 0); 699 700 for (i = 0; i < AN_TX_RING_CNT; i++) 701 an_cmd(sc, AN_CMD_DEALLOC_MEM, sc->sc_txd[i].d_fid); 702 } 703 704 sc->sc_tx_timer = 0; 705 ifp->if_timer = 0; 706 ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); 707 708 if (disable) { 709 if (sc->sc_disable) 710 (*sc->sc_disable)(sc); 711 sc->sc_enabled = 0; 712 } 713 splx(s); 714 } 715 716 static void 717 an_start(struct ifnet *ifp) 718 { 719 struct an_softc *sc = (struct an_softc *)ifp->if_softc; 720 struct ieee80211com *ic = &sc->sc_ic; 721 struct ieee80211_node *ni; 722 struct ieee80211_frame *wh; 723 struct an_txframe frmhdr; 724 struct ether_header *eh; 725 struct mbuf *m; 726 u_int16_t len; 727 int cur, fid; 728 729 if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) { 730 DPRINTF(("an_start: noop: enabled %d invalid %d\n", 731 sc->sc_enabled, !device_is_active(sc->sc_dev))); 732 return; 733 } 734 735 memset(&frmhdr, 0, sizeof(frmhdr)); 736 cur = sc->sc_txnext; 737 for (;;) { 738 if (ic->ic_state != IEEE80211_S_RUN) { 739 DPRINTF(("an_start: not running %d\n", ic->ic_state)); 740 break; 741 } 742 IFQ_POLL(&ifp->if_snd, m); 743 if (m == NULL) { 744 DPRINTF2(("an_start: no pending mbuf\n")); 745 break; 746 } 747 if (sc->sc_txd[cur].d_inuse) { 748 DPRINTF2(("an_start: %x/%d busy\n", 749 sc->sc_txd[cur].d_fid, cur)); 750 ifp->if_flags |= IFF_OACTIVE; 751 break; 752 } 753 IFQ_DEQUEUE(&ifp->if_snd, m); 754 if_statinc(ifp, if_opackets); 755 bpf_mtap(ifp, m, BPF_D_OUT); 756 eh = mtod(m, struct ether_header *); 757 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 758 if (ni == NULL) { 759 /* NB: ieee80211_find_txnode does stat+msg */ 760 goto bad; 761 } 762 if ((m = ieee80211_encap(ic, m, ni)) == NULL) 763 goto bad; 764 ieee80211_free_node(ni); 765 bpf_mtap3(ic->ic_rawbpf, m, BPF_D_OUT); 766 767 wh = mtod(m, struct ieee80211_frame *); 768 if (ic->ic_flags & IEEE80211_F_PRIVACY) 769 wh->i_fc[1] |= IEEE80211_FC1_WEP; 770 m_copydata(m, 0, sizeof(struct ieee80211_frame), 771 (void *)&frmhdr.an_whdr); 772 773 /* insert payload length in front of llc/snap */ 774 len = htons(m->m_pkthdr.len - sizeof(struct ieee80211_frame)); 775 m_adj(m, sizeof(struct ieee80211_frame) - sizeof(len)); 776 if (mtod(m, u_long) & 0x01) 777 memcpy(mtod(m, void *), &len, sizeof(len)); 778 else 779 *mtod(m, u_int16_t *) = len; 780 781 /* 782 * XXX Aironet firmware apparently convert the packet 783 * with longer than 1500 bytes in length into LLC/SNAP. 784 * If we have 1500 bytes in ethernet payload, it is 785 * 1508 bytes including LLC/SNAP and will be inserted 786 * additional LLC/SNAP header with 1501-1508 in its 787 * ethertype !! 788 * So we skip LLC/SNAP header and force firmware to 789 * convert it to LLC/SNAP again. 790 */ 791 m_adj(m, sizeof(struct llc)); 792 793 frmhdr.an_tx_ctl = htole16(AN_TXCTL_80211); 794 frmhdr.an_tx_payload_len = htole16(m->m_pkthdr.len); 795 frmhdr.an_gaplen = htole16(AN_TXGAP_802_11); 796 797 if (ic->ic_fixed_rate != -1) 798 frmhdr.an_tx_rate = 799 ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 800 ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 801 else 802 frmhdr.an_tx_rate = 0; 803 804 /* XXX radiotap for tx must be completed */ 805 if (sc->sc_drvbpf) { 806 struct an_tx_radiotap_header *tap = &sc->sc_txtap; 807 tap->at_rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate]; 808 tap->at_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 809 tap->at_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 810 /* TBD tap->wt_flags */ 811 bpf_mtap2(sc->sc_drvbpf, tap, tap->at_ihdr.it_len, m, 812 BPF_D_OUT); 813 } 814 815 #ifdef AN_DEBUG 816 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == 817 (IFF_DEBUG|IFF_LINK2)) { 818 ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, 819 sizeof(struct ieee80211_frame), -1, 0); 820 printf(" txctl 0x%x plen %u\n", 821 le16toh(frmhdr.an_tx_ctl), 822 le16toh(frmhdr.an_tx_payload_len)); 823 } 824 #endif 825 if (sizeof(frmhdr) + AN_TXGAP_802_11 + sizeof(len) + 826 m->m_pkthdr.len > AN_TX_MAX_LEN) 827 goto bad; 828 829 fid = sc->sc_txd[cur].d_fid; 830 if (an_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) 831 goto bad; 832 /* dummy write to avoid seek. */ 833 an_write_bap(sc, fid, -1, &frmhdr, AN_TXGAP_802_11); 834 an_mwrite_bap(sc, fid, -1, m, m->m_pkthdr.len); 835 m_freem(m); 836 837 DPRINTF2(("an_start: send %zu byte via %x/%d\n", 838 ntohs(len) + sizeof(struct ieee80211_frame), 839 fid, cur)); 840 sc->sc_txd[cur].d_inuse = 1; 841 if (an_cmd(sc, AN_CMD_TX, fid)) { 842 printf("%s: xmit failed\n", ifp->if_xname); 843 sc->sc_txd[cur].d_inuse = 0; 844 continue; 845 } 846 sc->sc_tx_timer = 5; 847 ifp->if_timer = 1; 848 AN_INC(cur, AN_TX_RING_CNT); 849 sc->sc_txnext = cur; 850 continue; 851 bad: 852 if_statinc(ifp, if_oerrors); 853 m_freem(m); 854 } 855 } 856 857 static int 858 an_reset(struct an_softc *sc) 859 { 860 861 DPRINTF(("an_reset\n")); 862 863 if (!sc->sc_enabled) 864 return ENXIO; 865 866 an_cmd(sc, AN_CMD_ENABLE, 0); 867 an_cmd(sc, AN_CMD_FW_RESTART, 0); 868 an_cmd(sc, AN_CMD_NOOP2, 0); 869 870 if (an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0) == ETIMEDOUT) { 871 aprint_error_dev(sc->sc_dev, "reset failed\n"); 872 return ETIMEDOUT; 873 } 874 875 an_cmd(sc, AN_CMD_DISABLE, 0); 876 return 0; 877 } 878 879 static void 880 an_watchdog(struct ifnet *ifp) 881 { 882 struct an_softc *sc = ifp->if_softc; 883 884 if (!sc->sc_enabled) 885 return; 886 887 if (sc->sc_tx_timer) { 888 if (--sc->sc_tx_timer == 0) { 889 printf("%s: device timeout\n", ifp->if_xname); 890 if_statinc(ifp, if_oerrors); 891 an_init(ifp); 892 return; 893 } 894 ifp->if_timer = 1; 895 } 896 ieee80211_watchdog(&sc->sc_ic); 897 } 898 899 static int 900 an_ioctl(struct ifnet *ifp, u_long command, void *data) 901 { 902 struct an_softc *sc = ifp->if_softc; 903 int s, error = 0; 904 905 if (!device_is_active(sc->sc_dev)) 906 return ENXIO; 907 908 s = splnet(); 909 910 switch (command) { 911 case SIOCSIFFLAGS: 912 if ((error = ifioctl_common(ifp, command, data)) != 0) 913 break; 914 if (ifp->if_flags & IFF_UP) { 915 if (sc->sc_enabled) { 916 /* 917 * To avoid rescanning another access point, 918 * do not call an_init() here. Instead, only 919 * reflect promisc mode settings. 920 */ 921 error = an_cmd(sc, AN_CMD_SET_MODE, 922 (ifp->if_flags & IFF_PROMISC) ? 0xffff : 0); 923 } else 924 error = an_init(ifp); 925 } else if (sc->sc_enabled) 926 an_stop(ifp, 1); 927 break; 928 case SIOCADDMULTI: 929 case SIOCDELMULTI: 930 error = ether_ioctl(ifp, command, data); 931 if (error == ENETRESET) { 932 /* we don't have multicast filter. */ 933 error = 0; 934 } 935 break; 936 case SIOCS80211NWKEY: 937 error = an_set_nwkey(sc, (struct ieee80211_nwkey *)data); 938 break; 939 case SIOCG80211NWKEY: 940 error = an_get_nwkey(sc, (struct ieee80211_nwkey *)data); 941 break; 942 default: 943 error = ieee80211_ioctl(&sc->sc_ic, command, data); 944 break; 945 } 946 if (error == ENETRESET) { 947 if (sc->sc_enabled) 948 error = an_init(ifp); 949 else 950 error = 0; 951 } 952 splx(s); 953 return error; 954 } 955 956 /* TBD factor with ieee80211_media_change */ 957 static int 958 an_media_change(struct ifnet *ifp) 959 { 960 struct an_softc *sc = ifp->if_softc; 961 struct ieee80211com *ic = &sc->sc_ic; 962 struct ifmedia_entry *ime; 963 enum ieee80211_opmode newmode; 964 int i, rate, error = 0; 965 966 ime = ic->ic_media.ifm_cur; 967 if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { 968 i = -1; 969 } else { 970 struct ieee80211_rateset *rs = 971 &ic->ic_sup_rates[IEEE80211_MODE_11B]; 972 rate = ieee80211_media2rate(ime->ifm_media); 973 if (rate == 0) 974 return EINVAL; 975 for (i = 0; i < rs->rs_nrates; i++) { 976 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) 977 break; 978 } 979 if (i == rs->rs_nrates) 980 return EINVAL; 981 } 982 if (ic->ic_fixed_rate != i) { 983 ic->ic_fixed_rate = i; 984 error = ENETRESET; 985 } 986 987 if (ime->ifm_media & IFM_IEEE80211_ADHOC) 988 newmode = IEEE80211_M_IBSS; 989 else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) 990 newmode = IEEE80211_M_HOSTAP; 991 else if (ime->ifm_media & IFM_IEEE80211_MONITOR) 992 newmode = IEEE80211_M_MONITOR; 993 else 994 newmode = IEEE80211_M_STA; 995 if (ic->ic_opmode != newmode) { 996 ic->ic_opmode = newmode; 997 error = ENETRESET; 998 } 999 if (error == ENETRESET) { 1000 if (sc->sc_enabled) 1001 error = an_init(ifp); 1002 else 1003 error = 0; 1004 } 1005 ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); 1006 1007 return error; 1008 } 1009 1010 static void 1011 an_media_status(struct ifnet *ifp, struct ifmediareq *imr) 1012 { 1013 struct an_softc *sc = ifp->if_softc; 1014 struct ieee80211com *ic = &sc->sc_ic; 1015 int rate, buflen; 1016 1017 if (sc->sc_enabled == 0) { 1018 imr->ifm_active = IFM_IEEE80211 | IFM_NONE; 1019 imr->ifm_status = 0; 1020 return; 1021 } 1022 1023 imr->ifm_status = IFM_AVALID; 1024 imr->ifm_active = IFM_IEEE80211; 1025 if (ic->ic_state == IEEE80211_S_RUN) 1026 imr->ifm_status |= IFM_ACTIVE; 1027 buflen = sizeof(sc->sc_buf); 1028 if (ic->ic_fixed_rate != -1) 1029 rate = ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ 1030 ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 1031 else if (an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen) != 0) 1032 rate = 0; 1033 else 1034 rate = le16toh(sc->sc_buf.sc_status.an_current_tx_rate); 1035 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 1036 switch (ic->ic_opmode) { 1037 case IEEE80211_M_STA: 1038 break; 1039 case IEEE80211_M_IBSS: 1040 imr->ifm_active |= IFM_IEEE80211_ADHOC; 1041 break; 1042 case IEEE80211_M_HOSTAP: 1043 imr->ifm_active |= IFM_IEEE80211_HOSTAP; 1044 break; 1045 case IEEE80211_M_MONITOR: 1046 imr->ifm_active |= IFM_IEEE80211_MONITOR; 1047 break; 1048 default: 1049 break; 1050 } 1051 } 1052 1053 static int 1054 an_set_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1055 { 1056 int error; 1057 struct ieee80211com *ic = &sc->sc_ic; 1058 u_int16_t prevauth; 1059 1060 error = 0; 1061 prevauth = sc->sc_config.an_authtype; 1062 1063 switch (nwkey->i_wepon) { 1064 case IEEE80211_NWKEY_OPEN: 1065 sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN; 1066 ic->ic_flags &= ~IEEE80211_F_PRIVACY; 1067 break; 1068 1069 case IEEE80211_NWKEY_WEP: 1070 case IEEE80211_NWKEY_WEP | IEEE80211_NWKEY_PERSIST: 1071 error = an_set_nwkey_wep(sc, nwkey); 1072 if (error == 0 || error == ENETRESET) { 1073 sc->sc_config.an_authtype = 1074 AN_AUTHTYPE_OPEN | AN_AUTHTYPE_PRIVACY_IN_USE; 1075 ic->ic_flags |= IEEE80211_F_PRIVACY; 1076 } 1077 break; 1078 1079 case IEEE80211_NWKEY_EAP: 1080 error = an_set_nwkey_eap(sc, nwkey); 1081 if (error == 0 || error == ENETRESET) { 1082 sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN | 1083 AN_AUTHTYPE_PRIVACY_IN_USE | AN_AUTHTYPE_LEAP; 1084 ic->ic_flags |= IEEE80211_F_PRIVACY; 1085 } 1086 break; 1087 default: 1088 error = EINVAL; 1089 break; 1090 } 1091 if (error == 0 && prevauth != sc->sc_config.an_authtype) 1092 error = ENETRESET; 1093 return error; 1094 } 1095 1096 static int 1097 an_set_nwkey_wep(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1098 { 1099 int i, txkey, anysetkey, needreset, error; 1100 struct an_wepkey keys[IEEE80211_WEP_NKID]; 1101 1102 error = 0; 1103 memset(keys, 0, sizeof(keys)); 1104 anysetkey = needreset = 0; 1105 1106 /* load argument and sanity check */ 1107 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1108 keys[i].an_wep_keylen = nwkey->i_key[i].i_keylen; 1109 if (keys[i].an_wep_keylen < 0) 1110 continue; 1111 if (keys[i].an_wep_keylen != 0 && 1112 keys[i].an_wep_keylen < IEEE80211_WEP_KEYLEN) 1113 return EINVAL; 1114 if (keys[i].an_wep_keylen > sizeof(keys[i].an_wep_key)) 1115 return EINVAL; 1116 if ((error = copyin(nwkey->i_key[i].i_keydat, 1117 keys[i].an_wep_key, keys[i].an_wep_keylen)) != 0) 1118 return error; 1119 anysetkey++; 1120 } 1121 txkey = nwkey->i_defkid - 1; 1122 if (txkey >= 0) { 1123 if (txkey >= IEEE80211_WEP_NKID) 1124 return EINVAL; 1125 /* default key must have a valid value */ 1126 if (keys[txkey].an_wep_keylen == 0 || 1127 (keys[txkey].an_wep_keylen < 0 && 1128 sc->sc_perskeylen[txkey] == 0)) 1129 return EINVAL; 1130 anysetkey++; 1131 } 1132 DPRINTF(("an_set_nwkey_wep: %s: %sold(%d:%d,%d,%d,%d) " 1133 "pers(%d:%d,%d,%d,%d) new(%d:%d,%d,%d,%d)\n", 1134 device_xname(sc->sc_dev), 1135 ((nwkey->i_wepon & IEEE80211_NWKEY_PERSIST) ? "persist: " : ""), 1136 sc->sc_tx_key, 1137 sc->sc_wepkeys[0].an_wep_keylen, sc->sc_wepkeys[1].an_wep_keylen, 1138 sc->sc_wepkeys[2].an_wep_keylen, sc->sc_wepkeys[3].an_wep_keylen, 1139 sc->sc_tx_perskey, 1140 sc->sc_perskeylen[0], sc->sc_perskeylen[1], 1141 sc->sc_perskeylen[2], sc->sc_perskeylen[3], 1142 txkey, 1143 keys[0].an_wep_keylen, keys[1].an_wep_keylen, 1144 keys[2].an_wep_keylen, keys[3].an_wep_keylen)); 1145 if (!(nwkey->i_wepon & IEEE80211_NWKEY_PERSIST)) { 1146 /* set temporary keys */ 1147 sc->sc_tx_key = txkey; 1148 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1149 if (keys[i].an_wep_keylen < 0) 1150 continue; 1151 memcpy(&sc->sc_wepkeys[i], &keys[i], sizeof(keys[i])); 1152 } 1153 } else { 1154 /* set persist keys */ 1155 if (anysetkey) { 1156 /* prepare to write nvram */ 1157 if (!sc->sc_enabled) { 1158 if (sc->sc_enable) 1159 (*sc->sc_enable)(sc); 1160 an_wait(sc); 1161 sc->sc_enabled = 1; 1162 error = an_write_wepkey(sc, 1163 AN_RID_WEP_PERSISTENT, keys, txkey); 1164 if (sc->sc_disable) 1165 (*sc->sc_disable)(sc); 1166 sc->sc_enabled = 0; 1167 } else { 1168 an_cmd(sc, AN_CMD_DISABLE, 0); 1169 error = an_write_wepkey(sc, 1170 AN_RID_WEP_PERSISTENT, keys, txkey); 1171 an_cmd(sc, AN_CMD_ENABLE, 0); 1172 } 1173 if (error) 1174 return error; 1175 } 1176 if (txkey >= 0) 1177 sc->sc_tx_perskey = txkey; 1178 if (sc->sc_tx_key >= 0) { 1179 sc->sc_tx_key = -1; 1180 needreset++; 1181 } 1182 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1183 if (sc->sc_wepkeys[i].an_wep_keylen >= 0) { 1184 memset(&sc->sc_wepkeys[i].an_wep_key, 0, 1185 sizeof(sc->sc_wepkeys[i].an_wep_key)); 1186 sc->sc_wepkeys[i].an_wep_keylen = -1; 1187 needreset++; 1188 } 1189 if (keys[i].an_wep_keylen >= 0) 1190 sc->sc_perskeylen[i] = keys[i].an_wep_keylen; 1191 } 1192 } 1193 if (needreset) { 1194 /* firmware restart to reload persistent key */ 1195 an_reset(sc); 1196 } 1197 if (anysetkey || needreset) 1198 error = ENETRESET; 1199 return error; 1200 } 1201 1202 static int 1203 an_set_nwkey_eap(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1204 { 1205 int i, error, len; 1206 struct ifnet *ifp = &sc->sc_if; 1207 struct an_rid_leapkey *key; 1208 u_int16_t unibuf[sizeof(key->an_key)]; 1209 static const int leap_rid[] = { AN_RID_LEAP_PASS, AN_RID_LEAP_USER }; 1210 MD4_CTX ctx; 1211 1212 error = 0; 1213 1214 if (nwkey->i_key[0].i_keydat == NULL && 1215 nwkey->i_key[1].i_keydat == NULL) 1216 return 0; 1217 if (!sc->sc_enabled) 1218 return ENXIO; 1219 an_cmd(sc, AN_CMD_DISABLE, 0); 1220 key = &sc->sc_buf.sc_leapkey; 1221 for (i = 0; i < 2; i++) { 1222 if (nwkey->i_key[i].i_keydat == NULL) 1223 continue; 1224 len = nwkey->i_key[i].i_keylen; 1225 if (len > sizeof(key->an_key)) 1226 return EINVAL; 1227 memset(key, 0, sizeof(*key)); 1228 key->an_key_len = htole16(len); 1229 if ((error = copyin(nwkey->i_key[i].i_keydat, key->an_key, 1230 len)) != 0) 1231 return error; 1232 if (i == 1) { 1233 /* 1234 * Cisco seems to use PasswordHash and PasswordHashHash 1235 * in RFC-2759 (MS-CHAP-V2). 1236 */ 1237 memset(unibuf, 0, sizeof(unibuf)); 1238 /* XXX: convert password to unicode */ 1239 int j; 1240 for (j = 0; j < len; j++) 1241 unibuf[j] = key->an_key[j]; 1242 /* set PasswordHash */ 1243 MD4Init(&ctx); 1244 MD4Update(&ctx, (u_int8_t *)unibuf, len * 2); 1245 MD4Final(key->an_key, &ctx); 1246 /* set PasswordHashHash */ 1247 MD4Init(&ctx); 1248 MD4Update(&ctx, key->an_key, 16); 1249 MD4Final(key->an_key + 16, &ctx); 1250 key->an_key_len = htole16(32); 1251 } 1252 if ((error = an_write_rid(sc, leap_rid[i], key, 1253 sizeof(*key))) != 0) { 1254 printf("%s: LEAP set failed\n", ifp->if_xname); 1255 return error; 1256 } 1257 } 1258 error = an_cmd(sc, AN_CMD_ENABLE, 0); 1259 if (error) 1260 printf("%s: an_set_nwkey: failed to enable MAC\n", 1261 ifp->if_xname); 1262 else 1263 error = ENETRESET; 1264 return error; 1265 } 1266 1267 static int 1268 an_get_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) 1269 { 1270 int i, error; 1271 1272 error = 0; 1273 if (sc->sc_config.an_authtype & AN_AUTHTYPE_LEAP) 1274 nwkey->i_wepon = IEEE80211_NWKEY_EAP; 1275 else if (sc->sc_config.an_authtype & AN_AUTHTYPE_PRIVACY_IN_USE) 1276 nwkey->i_wepon = IEEE80211_NWKEY_WEP; 1277 else 1278 nwkey->i_wepon = IEEE80211_NWKEY_OPEN; 1279 if (sc->sc_tx_key == -1) 1280 nwkey->i_defkid = sc->sc_tx_perskey + 1; 1281 else 1282 nwkey->i_defkid = sc->sc_tx_key + 1; 1283 if (nwkey->i_key[0].i_keydat == NULL) 1284 return 0; 1285 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1286 if (nwkey->i_key[i].i_keydat == NULL) 1287 continue; 1288 /* do not show any keys to non-root user */ 1289 /* XXX-elad: why is this inside a loop? */ 1290 if ((error = kauth_authorize_network(kauth_cred_get(), 1291 KAUTH_NETWORK_INTERFACE, 1292 KAUTH_REQ_NETWORK_INTERFACE_GETPRIV, sc->sc_ic.ic_ifp, 1293 KAUTH_ARG(SIOCG80211NWKEY), NULL)) != 0) 1294 break; 1295 nwkey->i_key[i].i_keylen = sc->sc_wepkeys[i].an_wep_keylen; 1296 if (nwkey->i_key[i].i_keylen < 0) { 1297 if (sc->sc_perskeylen[i] == 0) 1298 nwkey->i_key[i].i_keylen = 0; 1299 continue; 1300 } 1301 if ((error = copyout(sc->sc_wepkeys[i].an_wep_key, 1302 nwkey->i_key[i].i_keydat, 1303 sc->sc_wepkeys[i].an_wep_keylen)) != 0) 1304 break; 1305 } 1306 return error; 1307 } 1308 1309 static int 1310 an_write_wepkey(struct an_softc *sc, int type, struct an_wepkey *keys, int kid) 1311 { 1312 int i, error; 1313 struct an_rid_wepkey *akey; 1314 1315 error = 0; 1316 akey = &sc->sc_buf.sc_wepkey; 1317 memset(akey, 0, sizeof(struct an_rid_wepkey)); 1318 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 1319 if (keys[i].an_wep_keylen < 0 || 1320 keys[i].an_wep_keylen > sizeof(akey->an_key)) 1321 continue; 1322 akey->an_key_len = htole16(keys[i].an_wep_keylen); 1323 akey->an_key_index = htole16(i); 1324 akey->an_mac_addr[0] = 1; /* default mac */ 1325 memcpy(akey->an_key, keys[i].an_wep_key, keys[i].an_wep_keylen); 1326 if ((error = an_write_rid(sc, type, akey, sizeof(*akey))) != 0) 1327 return error; 1328 } 1329 if (kid >= 0) { 1330 akey->an_key_index = htole16(0xffff); 1331 akey->an_mac_addr[0] = kid; 1332 akey->an_key_len = htole16(0); 1333 memset(akey->an_key, 0, sizeof(akey->an_key)); 1334 error = an_write_rid(sc, type, akey, sizeof(*akey)); 1335 } 1336 return error; 1337 } 1338 1339 #ifdef AN_DEBUG 1340 static void 1341 an_dump_pkt(const char *devname, struct mbuf *m) 1342 { 1343 int col, col0, i; 1344 uint8_t *pkt = mtod(m, uint8_t *); 1345 const char *delim = ""; 1346 int delimw = 0; 1347 1348 printf("%s: pkt ", devname); 1349 col = col0 = strlen(devname) + strlen(": pkt "); 1350 for (i = 0; i < m->m_len; i++) { 1351 printf("%s%02x", delim, pkt[i]); 1352 delim = ":"; 1353 delimw = 1; 1354 col += delimw + 2; 1355 if (col >= 72) { 1356 printf("\n%*s", col0, ""); 1357 col = col0; 1358 delim = ""; 1359 delimw = 0; 1360 } 1361 } 1362 if (col != 0) 1363 printf("\n"); 1364 } 1365 #endif /* AN_DEBUG */ 1366 1367 /* 1368 * Low level functions 1369 */ 1370 1371 static void 1372 an_rx_intr(struct an_softc *sc) 1373 { 1374 struct ieee80211com *ic = &sc->sc_ic; 1375 struct ifnet *ifp = &sc->sc_if; 1376 struct ieee80211_frame_min *wh; 1377 struct ieee80211_node *ni; 1378 struct an_rxframe frmhdr; 1379 struct mbuf *m; 1380 u_int16_t status; 1381 int fid, gaplen, len, off, s; 1382 uint8_t *gap; 1383 1384 fid = CSR_READ_2(sc, AN_RX_FID); 1385 1386 /* First read in the frame header */ 1387 if (an_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { 1388 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1389 if_statinc(ifp, if_ierrors); 1390 DPRINTF(("an_rx_intr: read fid %x failed\n", fid)); 1391 return; 1392 } 1393 1394 #ifdef AN_DEBUG 1395 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) { 1396 ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, 1397 sizeof(struct ieee80211_frame), frmhdr.an_rx_rate, 1398 frmhdr.an_rx_signal_strength); 1399 printf(" time 0x%x status 0x%x plen %u chan %u" 1400 " plcp %02x %02x %02x %02x gap %u\n", 1401 le32toh(frmhdr.an_rx_time), le16toh(frmhdr.an_rx_status), 1402 le16toh(frmhdr.an_rx_payload_len), frmhdr.an_rx_chan, 1403 frmhdr.an_plcp_hdr[0], frmhdr.an_plcp_hdr[1], 1404 frmhdr.an_plcp_hdr[2], frmhdr.an_plcp_hdr[3], 1405 le16toh(frmhdr.an_gaplen)); 1406 } 1407 #endif 1408 1409 status = le16toh(frmhdr.an_rx_status); 1410 if ((status & AN_STAT_ERRSTAT) != 0 && 1411 ic->ic_opmode != IEEE80211_M_MONITOR) { 1412 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1413 if_statinc(ifp, if_ierrors); 1414 DPRINTF(("an_rx_intr: fid %x status %x\n", fid, status)); 1415 return; 1416 } 1417 1418 /* the payload length field includes a 16-bit "mystery field" */ 1419 len = le16toh(frmhdr.an_rx_payload_len) - sizeof(uint16_t); 1420 off = ALIGN(sizeof(struct ieee80211_frame)); 1421 1422 if (off + len > MCLBYTES) { 1423 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1424 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1425 if_statinc(ifp, if_ierrors); 1426 DPRINTF(("an_rx_intr: oversized packet %d\n", len)); 1427 return; 1428 } 1429 len = 0; 1430 } 1431 1432 MGETHDR(m, M_DONTWAIT, MT_DATA); 1433 if (m == NULL) { 1434 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1435 if_statinc(ifp, if_ierrors); 1436 DPRINTF(("an_rx_intr: MGET failed\n")); 1437 return; 1438 } 1439 if (off + len + AN_GAPLEN_MAX > MHLEN) { 1440 MCLGET(m, M_DONTWAIT); 1441 if ((m->m_flags & M_EXT) == 0) { 1442 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1443 m_freem(m); 1444 if_statinc(ifp, if_ierrors); 1445 DPRINTF(("an_rx_intr: MCLGET failed\n")); 1446 return; 1447 } 1448 } 1449 m->m_data += off - sizeof(struct ieee80211_frame); 1450 1451 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1452 gaplen = le16toh(frmhdr.an_gaplen); 1453 if (gaplen > AN_GAPLEN_MAX) { 1454 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1455 m_freem(m); 1456 if_statinc(ifp, if_ierrors); 1457 DPRINTF(("%s: gap too long\n", __func__)); 1458 return; 1459 } 1460 /* 1461 * We don't need the 16-bit mystery field (payload length?), 1462 * so read it into the region reserved for the 802.11 header. 1463 * 1464 * When Cisco Aironet 350 cards w/ firmware version 5 or 1465 * greater operate with certain Cisco 350 APs, 1466 * the "gap" is filled with the SNAP header. Read 1467 * it in after the 802.11 header. 1468 */ 1469 gap = m->m_data + sizeof(struct ieee80211_frame) - 1470 sizeof(uint16_t); 1471 an_read_bap(sc, fid, -1, gap, gaplen + sizeof(u_int16_t)); 1472 #ifdef AN_DEBUG 1473 if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == 1474 (IFF_DEBUG|IFF_LINK2)) { 1475 int i; 1476 printf(" gap&len"); 1477 for (i = 0; i < gaplen + sizeof(u_int16_t); i++) 1478 printf(" %02x", gap[i]); 1479 printf("\n"); 1480 } 1481 #endif 1482 } else 1483 gaplen = 0; 1484 1485 an_read_bap(sc, fid, -1, 1486 m->m_data + sizeof(struct ieee80211_frame) + gaplen, len); 1487 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + gaplen + 1488 len; 1489 1490 memcpy(m->m_data, &frmhdr.an_whdr, sizeof(struct ieee80211_frame)); 1491 m_set_rcvif(m, ifp); 1492 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); 1493 1494 s = splnet(); 1495 1496 if (sc->sc_drvbpf) { 1497 struct an_rx_radiotap_header *tap = &sc->sc_rxtap; 1498 1499 tap->ar_rate = frmhdr.an_rx_rate; 1500 tap->ar_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1501 tap->ar_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1502 tap->ar_antsignal = frmhdr.an_rx_signal_strength; 1503 if ((le16toh(frmhdr.an_rx_status) & AN_STAT_BADCRC) || 1504 (le16toh(frmhdr.an_rx_status) & AN_STAT_ERRSTAT) || 1505 (le16toh(frmhdr.an_rx_status) & AN_STAT_UNDECRYPTABLE)) 1506 tap->ar_flags |= IEEE80211_RADIOTAP_F_BADFCS; 1507 1508 bpf_mtap2(sc->sc_drvbpf, tap, htole16(tap->ar_ihdr.it_len), m, 1509 BPF_D_IN); 1510 } 1511 wh = mtod(m, struct ieee80211_frame_min *); 1512 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1513 /* 1514 * WEP is decrypted by hardware. Clear WEP bit 1515 * header for ieee80211_input(). 1516 */ 1517 wh->i_fc[1] &= ~IEEE80211_FC1_WEP; 1518 } 1519 1520 #ifdef AN_DEBUG 1521 if (an_debug > 1) 1522 an_dump_pkt(device_xname(sc->sc_dev), m); 1523 #endif /* AN_DEBUG */ 1524 1525 ni = ieee80211_find_rxnode(ic, wh); 1526 ieee80211_input(ic, m, ni, frmhdr.an_rx_signal_strength, 1527 le32toh(frmhdr.an_rx_time)); 1528 ieee80211_free_node(ni); 1529 1530 splx(s); 1531 } 1532 1533 static void 1534 an_tx_intr(struct an_softc *sc, int status) 1535 { 1536 struct ifnet *ifp = &sc->sc_if; 1537 int cur, fid, s; 1538 1539 s = splnet(); 1540 1541 sc->sc_tx_timer = 0; 1542 ifp->if_flags &= ~IFF_OACTIVE; 1543 1544 fid = CSR_READ_2(sc, AN_TX_CMP_FID); 1545 CSR_WRITE_2(sc, AN_EVENT_ACK, status & (AN_EV_TX | AN_EV_TX_EXC)); 1546 1547 if (status & AN_EV_TX_EXC) 1548 if_statinc(ifp, if_oerrors); 1549 else 1550 if_statinc(ifp, if_opackets); 1551 1552 cur = sc->sc_txcur; 1553 if (sc->sc_txd[cur].d_fid == fid) { 1554 sc->sc_txd[cur].d_inuse = 0; 1555 DPRINTF2(("an_tx_intr: sent %x/%d\n", fid, cur)); 1556 AN_INC(cur, AN_TX_RING_CNT); 1557 sc->sc_txcur = cur; 1558 } else { 1559 for (cur = 0; cur < AN_TX_RING_CNT; cur++) { 1560 if (fid == sc->sc_txd[cur].d_fid) { 1561 sc->sc_txd[cur].d_inuse = 0; 1562 break; 1563 } 1564 } 1565 if (ifp->if_flags & IFF_DEBUG) 1566 printf("%s: tx mismatch: " 1567 "expected %x(%d), actual %x(%d)\n", 1568 device_xname(sc->sc_dev), 1569 sc->sc_txd[sc->sc_txcur].d_fid, sc->sc_txcur, 1570 fid, cur); 1571 } 1572 1573 splx(s); 1574 } 1575 1576 static void 1577 an_linkstat_intr(struct an_softc *sc) 1578 { 1579 struct ieee80211com *ic = &sc->sc_ic; 1580 u_int16_t status; 1581 int s; 1582 1583 status = CSR_READ_2(sc, AN_LINKSTAT); 1584 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_LINKSTAT); 1585 DPRINTF(("an_linkstat_intr: status 0x%x\n", status)); 1586 1587 s = splnet(); 1588 if (status == AN_LINKSTAT_ASSOCIATED) { 1589 if (ic->ic_state != IEEE80211_S_RUN || 1590 ic->ic_opmode == IEEE80211_M_IBSS) 1591 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1592 } else { 1593 if (ic->ic_opmode == IEEE80211_M_STA) 1594 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1595 } 1596 splx(s); 1597 } 1598 1599 /* Must be called at proper protection level! */ 1600 static int 1601 an_cmd(struct an_softc *sc, int cmd, int val) 1602 { 1603 int i, status; 1604 1605 /* make sure that previous command completed */ 1606 if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) { 1607 if (sc->sc_if.if_flags & IFF_DEBUG) 1608 printf("%s: command 0x%x busy\n", device_xname(sc->sc_dev), 1609 CSR_READ_2(sc, AN_COMMAND)); 1610 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); 1611 } 1612 1613 CSR_WRITE_2(sc, AN_PARAM0, val); 1614 CSR_WRITE_2(sc, AN_PARAM1, 0); 1615 CSR_WRITE_2(sc, AN_PARAM2, 0); 1616 CSR_WRITE_2(sc, AN_COMMAND, cmd); 1617 1618 if (cmd == AN_CMD_FW_RESTART) { 1619 /* XXX: should sleep here */ 1620 DELAY(100*1000); 1621 } 1622 1623 for (i = 0; i < AN_TIMEOUT; i++) { 1624 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) 1625 break; 1626 DELAY(10); 1627 } 1628 1629 status = CSR_READ_2(sc, AN_STATUS); 1630 1631 /* clear stuck command busy if necessary */ 1632 if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) 1633 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); 1634 1635 /* Ack the command */ 1636 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); 1637 1638 if (i == AN_TIMEOUT) { 1639 if (sc->sc_if.if_flags & IFF_DEBUG) 1640 printf("%s: command 0x%x param 0x%x timeout\n", 1641 device_xname(sc->sc_dev), cmd, val); 1642 return ETIMEDOUT; 1643 } 1644 if (status & AN_STAT_CMD_RESULT) { 1645 if (sc->sc_if.if_flags & IFF_DEBUG) 1646 printf("%s: command 0x%x param 0x%x status 0x%x " 1647 "resp 0x%x 0x%x 0x%x\n", 1648 device_xname(sc->sc_dev), cmd, val, status, 1649 CSR_READ_2(sc, AN_RESP0), CSR_READ_2(sc, AN_RESP1), 1650 CSR_READ_2(sc, AN_RESP2)); 1651 return EIO; 1652 } 1653 1654 return 0; 1655 } 1656 1657 1658 /* 1659 * Wait for firmware come up after power enabled. 1660 */ 1661 static void 1662 an_wait(struct an_softc *sc) 1663 { 1664 int i; 1665 1666 CSR_WRITE_2(sc, AN_COMMAND, AN_CMD_NOOP2); 1667 for (i = 0; i < 3*hz; i++) { 1668 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) 1669 break; 1670 (void)tsleep(sc, PWAIT, "anatch", 1); 1671 } 1672 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); 1673 } 1674 1675 static int 1676 an_seek_bap(struct an_softc *sc, int id, int off) 1677 { 1678 int i, status; 1679 1680 CSR_WRITE_2(sc, AN_SEL0, id); 1681 CSR_WRITE_2(sc, AN_OFF0, off); 1682 1683 for (i = 0; ; i++) { 1684 status = CSR_READ_2(sc, AN_OFF0); 1685 if ((status & AN_OFF_BUSY) == 0) 1686 break; 1687 if (i == AN_TIMEOUT) { 1688 printf("%s: timeout in an_seek_bap to 0x%x/0x%x\n", 1689 device_xname(sc->sc_dev), id, off); 1690 sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ 1691 return ETIMEDOUT; 1692 } 1693 DELAY(10); 1694 } 1695 if (status & AN_OFF_ERR) { 1696 aprint_error_dev(sc->sc_dev, "failed in an_seek_bap to 0x%x/0x%x\n", 1697 id, off); 1698 sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ 1699 return EIO; 1700 } 1701 sc->sc_bap_id = id; 1702 sc->sc_bap_off = off; 1703 return 0; 1704 } 1705 1706 static int 1707 an_read_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) 1708 { 1709 int error, cnt; 1710 1711 if (buflen == 0) 1712 return 0; 1713 if (off == -1) 1714 off = sc->sc_bap_off; 1715 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1716 if ((error = an_seek_bap(sc, id, off)) != 0) 1717 return EIO; 1718 } 1719 1720 cnt = (buflen + 1) / 2; 1721 CSR_READ_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); 1722 sc->sc_bap_off += cnt * 2; 1723 return 0; 1724 } 1725 1726 static int 1727 an_write_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) 1728 { 1729 int error, cnt; 1730 1731 if (buflen == 0) 1732 return 0; 1733 if (off == -1) 1734 off = sc->sc_bap_off; 1735 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1736 if ((error = an_seek_bap(sc, id, off)) != 0) 1737 return EIO; 1738 } 1739 1740 cnt = (buflen + 1) / 2; 1741 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); 1742 sc->sc_bap_off += cnt * 2; 1743 return 0; 1744 } 1745 1746 static int 1747 an_mwrite_bap(struct an_softc *sc, int id, int off, struct mbuf *m, int totlen) 1748 { 1749 int error, len, cnt; 1750 1751 if (off == -1) 1752 off = sc->sc_bap_off; 1753 if (id != sc->sc_bap_id || off != sc->sc_bap_off) { 1754 if ((error = an_seek_bap(sc, id, off)) != 0) 1755 return EIO; 1756 } 1757 1758 for (len = 0; m != NULL; m = m->m_next) { 1759 if (m->m_len == 0) 1760 continue; 1761 len = uimin(m->m_len, totlen); 1762 1763 if ((mtod(m, u_long) & 0x1) || (len & 0x1)) { 1764 m_copydata(m, 0, totlen, (void *)&sc->sc_buf.sc_txbuf); 1765 cnt = (totlen + 1) / 2; 1766 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, 1767 sc->sc_buf.sc_val, cnt); 1768 off += cnt * 2; 1769 break; 1770 } 1771 cnt = len / 2; 1772 CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, mtod(m, u_int16_t *), 1773 cnt); 1774 off += len; 1775 totlen -= len; 1776 } 1777 sc->sc_bap_off = off; 1778 return 0; 1779 } 1780 1781 static int 1782 an_alloc_fid(struct an_softc *sc, int len, int *idp) 1783 { 1784 int i; 1785 1786 if (an_cmd(sc, AN_CMD_ALLOC_MEM, len)) { 1787 aprint_error_dev(sc->sc_dev, "failed to allocate %d bytes on NIC\n", 1788 len); 1789 return ENOMEM; 1790 } 1791 1792 for (i = 0; i < AN_TIMEOUT; i++) { 1793 if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_ALLOC) 1794 break; 1795 DELAY(10); 1796 } 1797 if (i == AN_TIMEOUT) { 1798 printf("%s: timeout in alloc\n", device_xname(sc->sc_dev)); 1799 return ETIMEDOUT; 1800 } 1801 1802 *idp = CSR_READ_2(sc, AN_ALLOC_FID); 1803 CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_ALLOC); 1804 return 0; 1805 } 1806 1807 static int 1808 an_read_rid(struct an_softc *sc, int rid, void *buf, int *buflenp) 1809 { 1810 int error; 1811 u_int16_t len; 1812 1813 /* Tell the NIC to enter record read mode. */ 1814 error = an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_READ, rid); 1815 if (error) 1816 return error; 1817 1818 /* length in byte, including length itself */ 1819 error = an_read_bap(sc, rid, 0, &len, sizeof(len)); 1820 if (error) 1821 return error; 1822 1823 len = le16toh(len) - 2; 1824 if (*buflenp < len) { 1825 aprint_error_dev(sc->sc_dev, "record buffer is too small, " 1826 "rid=%x, size=%d, len=%d\n", 1827 rid, *buflenp, len); 1828 return ENOSPC; 1829 } 1830 *buflenp = len; 1831 return an_read_bap(sc, rid, sizeof(len), buf, len); 1832 } 1833 1834 static int 1835 an_write_rid(struct an_softc *sc, int rid, void *buf, int buflen) 1836 { 1837 int error; 1838 u_int16_t len; 1839 1840 /* length in byte, including length itself */ 1841 len = htole16(buflen + 2); 1842 1843 error = an_write_bap(sc, rid, 0, &len, sizeof(len)); 1844 if (error) 1845 return error; 1846 error = an_write_bap(sc, rid, sizeof(len), buf, buflen); 1847 if (error) 1848 return error; 1849 1850 return an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_WRITE, rid); 1851 } 1852 1853 static int 1854 an_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1855 { 1856 struct an_softc *sc = (struct an_softc *)ic->ic_ifp->if_softc; 1857 struct ieee80211_node *ni = ic->ic_bss; 1858 int buflen; 1859 1860 DPRINTF(("an_newstate: %s -> %s\n", ieee80211_state_name[ic->ic_state], 1861 ieee80211_state_name[nstate])); 1862 1863 switch (nstate) { 1864 case IEEE80211_S_INIT: 1865 ic->ic_flags &= ~IEEE80211_F_IBSSON; 1866 return (*sc->sc_newstate)(ic, nstate, arg); 1867 1868 case IEEE80211_S_SCAN: 1869 case IEEE80211_S_AUTH: 1870 case IEEE80211_S_ASSOC: 1871 ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */ 1872 return 0; 1873 1874 case IEEE80211_S_RUN: 1875 buflen = sizeof(sc->sc_buf); 1876 an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen); 1877 IEEE80211_ADDR_COPY(ni->ni_bssid, 1878 sc->sc_buf.sc_status.an_cur_bssid); 1879 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid); 1880 ni->ni_chan = &ic->ic_channels[ 1881 le16toh(sc->sc_buf.sc_status.an_cur_channel)]; 1882 ni->ni_esslen = le16toh(sc->sc_buf.sc_status.an_ssidlen); 1883 if (ni->ni_esslen > IEEE80211_NWID_LEN) 1884 ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ 1885 memcpy(ni->ni_essid, sc->sc_buf.sc_status.an_ssid, 1886 ni->ni_esslen); 1887 ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B]; /*XXX*/ 1888 if (ic->ic_ifp->if_flags & IFF_DEBUG) { 1889 printf("%s: ", device_xname(sc->sc_dev)); 1890 if (ic->ic_opmode == IEEE80211_M_STA) 1891 printf("associated "); 1892 else 1893 printf("synchronized "); 1894 printf("with %s ssid ", ether_sprintf(ni->ni_bssid)); 1895 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 1896 printf(" channel %u start %uMb\n", 1897 le16toh(sc->sc_buf.sc_status.an_cur_channel), 1898 le16toh(sc->sc_buf.sc_status.an_current_tx_rate)/2); 1899 } 1900 break; 1901 1902 default: 1903 break; 1904 } 1905 return (*sc->sc_newstate)(ic, nstate, arg); 1906 }
Cache object: eb918b91dcf1ea32190446c2e1421052
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]