| 1 | /* $NetBSD: an.c,v 1.63 2016/06/10 13:27:13 ozaki-r 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 1.63 2016/06/10 13:27:13 ozaki-r 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 | |
| 100 | #include <net/if.h> |
| 101 | #include <net/if_dl.h> |
| 102 | #include <net/if_ether.h> |
| 103 | #include <net/if_llc.h> |
| 104 | #include <net/if_media.h> |
| 105 | #include <net/if_types.h> |
| 106 | |
| 107 | #include <net80211/ieee80211_netbsd.h> |
| 108 | #include <net80211/ieee80211_var.h> |
| 109 | #include <net80211/ieee80211_radiotap.h> |
| 110 | |
| 111 | #include <net/bpf.h> |
| 112 | #include <net/bpfdesc.h> |
| 113 | |
| 114 | #include <dev/ic/anreg.h> |
| 115 | #include <dev/ic/anvar.h> |
| 116 | |
| 117 | static int an_reset(struct an_softc *); |
| 118 | static void an_wait(struct an_softc *); |
| 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; |
| 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 | splx(s); |
| 178 | return 1; |
| 179 | } |
| 180 | |
| 181 | /* Load factory config */ |
| 182 | if (an_cmd(sc, AN_CMD_READCFG, 0) != 0) { |
| 183 | splx(s); |
| 184 | aprint_error_dev(sc->sc_dev, "failed to load config data\n" ); |
| 185 | return 1; |
| 186 | } |
| 187 | |
| 188 | /* Read the current configuration */ |
| 189 | buflen = sizeof(sc->sc_config); |
| 190 | if (an_read_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, &buflen) != 0) { |
| 191 | splx(s); |
| 192 | aprint_error_dev(sc->sc_dev, "read config failed\n" ); |
| 193 | return 1; |
| 194 | } |
| 195 | |
| 196 | /* Read the card capabilities */ |
| 197 | buflen = sizeof(sc->sc_caps); |
| 198 | if (an_read_rid(sc, AN_RID_CAPABILITIES, &sc->sc_caps, &buflen) != 0) { |
| 199 | splx(s); |
| 200 | aprint_error_dev(sc->sc_dev, "read caps failed\n" ); |
| 201 | return 1; |
| 202 | } |
| 203 | |
| 204 | #ifdef AN_DEBUG |
| 205 | if (an_debug) { |
| 206 | static const int dumprid[] = { |
| 207 | AN_RID_GENCONFIG, AN_RID_CAPABILITIES, AN_RID_SSIDLIST, |
| 208 | AN_RID_APLIST, AN_RID_STATUS, AN_RID_ENCAP |
| 209 | }; |
| 210 | |
| 211 | for (rid = 0; rid < sizeof(dumprid)/sizeof(dumprid[0]); rid++) { |
| 212 | buflen = sizeof(sc->sc_buf); |
| 213 | if (an_read_rid(sc, dumprid[rid], &sc->sc_buf, &buflen) |
| 214 | != 0) |
| 215 | continue; |
| 216 | printf("%04x (%d):\n" , dumprid[rid], buflen); |
| 217 | for (i = 0; i < (buflen + 1) / 2; i++) |
| 218 | printf(" %04x" , sc->sc_buf.sc_val[i]); |
| 219 | printf("\n" ); |
| 220 | } |
| 221 | } |
| 222 | #endif |
| 223 | |
| 224 | /* Read WEP settings from persistent memory */ |
| 225 | akey = &sc->sc_buf.sc_wepkey; |
| 226 | buflen = sizeof(struct an_rid_wepkey); |
| 227 | rid = AN_RID_WEP_VOLATILE; /* first persistent key */ |
| 228 | while (an_read_rid(sc, rid, akey, &buflen) == 0) { |
| 229 | kid = le16toh(akey->an_key_index); |
| 230 | DPRINTF(("an_attach: wep rid=0x%x len=%d(%zu) index=0x%04x " |
| 231 | "mac[0]=%02x keylen=%d\n" , |
| 232 | rid, buflen, sizeof(*akey), kid, |
| 233 | akey->an_mac_addr[0], le16toh(akey->an_key_len))); |
| 234 | if (kid == 0xffff) { |
| 235 | sc->sc_tx_perskey = akey->an_mac_addr[0]; |
| 236 | sc->sc_tx_key = -1; |
| 237 | break; |
| 238 | } |
| 239 | if (kid >= IEEE80211_WEP_NKID) |
| 240 | break; |
| 241 | sc->sc_perskeylen[kid] = le16toh(akey->an_key_len); |
| 242 | sc->sc_wepkeys[kid].an_wep_keylen = -1; |
| 243 | rid = AN_RID_WEP_PERSISTENT; /* for next key */ |
| 244 | buflen = sizeof(struct an_rid_wepkey); |
| 245 | } |
| 246 | |
| 247 | aprint_normal_dev(sc->sc_dev, "%s %s (firmware %s)\n" , |
| 248 | sc->sc_caps.an_manufname, sc->sc_caps.an_prodname, |
| 249 | sc->sc_caps.an_prodvers); |
| 250 | |
| 251 | memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
| 252 | |
| 253 | ifp->if_softc = sc; |
| 254 | ifp->if_flags = IFF_BROADCAST | IFF_NOTRAILERS | IFF_SIMPLEX | |
| 255 | IFF_MULTICAST | IFF_ALLMULTI; |
| 256 | ifp->if_ioctl = an_ioctl; |
| 257 | ifp->if_start = an_start; |
| 258 | ifp->if_init = an_init; |
| 259 | ifp->if_stop = an_stop; |
| 260 | ifp->if_watchdog = an_watchdog; |
| 261 | IFQ_SET_READY(&ifp->if_snd); |
| 262 | |
| 263 | ic->ic_ifp = ifp; |
| 264 | ic->ic_phytype = IEEE80211_T_DS; |
| 265 | ic->ic_opmode = IEEE80211_M_STA; |
| 266 | ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_PMGT | IEEE80211_C_IBSS | |
| 267 | IEEE80211_C_MONITOR; |
| 268 | ic->ic_state = IEEE80211_S_INIT; |
| 269 | IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_caps.an_oemaddr); |
| 270 | |
| 271 | switch (le16toh(sc->sc_caps.an_regdomain)) { |
| 272 | default: |
| 273 | case AN_REGDOMAIN_USA: |
| 274 | case AN_REGDOMAIN_CANADA: |
| 275 | chan_min = 1; chan_max = 11; break; |
| 276 | case AN_REGDOMAIN_EUROPE: |
| 277 | case AN_REGDOMAIN_AUSTRALIA: |
| 278 | chan_min = 1; chan_max = 13; break; |
| 279 | case AN_REGDOMAIN_JAPAN: |
| 280 | chan_min = 14; chan_max = 14; break; |
| 281 | case AN_REGDOMAIN_SPAIN: |
| 282 | chan_min = 10; chan_max = 11; break; |
| 283 | case AN_REGDOMAIN_FRANCE: |
| 284 | chan_min = 10; chan_max = 13; break; |
| 285 | case AN_REGDOMAIN_JAPANWIDE: |
| 286 | chan_min = 1; chan_max = 14; break; |
| 287 | } |
| 288 | |
| 289 | for (chan = chan_min; chan <= chan_max; chan++) { |
| 290 | ic->ic_channels[chan].ic_freq = |
| 291 | ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); |
| 292 | ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; |
| 293 | } |
| 294 | ic->ic_ibss_chan = &ic->ic_channels[chan_min]; |
| 295 | |
| 296 | aprint_normal("%s: 802.11 address: %s, channel: %d-%d\n" , |
| 297 | ifp->if_xname, ether_sprintf(ic->ic_myaddr), chan_min, chan_max); |
| 298 | |
| 299 | /* Find supported rate */ |
| 300 | for (i = 0; i < sizeof(sc->sc_caps.an_rates); i++) { |
| 301 | if (sc->sc_caps.an_rates[i] == 0) |
| 302 | continue; |
| 303 | ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ |
| 304 | ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates++] = |
| 305 | sc->sc_caps.an_rates[i]; |
| 306 | } |
| 307 | |
| 308 | /* |
| 309 | * Call MI attach routine. |
| 310 | */ |
| 311 | if_attach(ifp); |
| 312 | ieee80211_ifattach(ic); |
| 313 | |
| 314 | sc->sc_newstate = ic->ic_newstate; |
| 315 | ic->ic_newstate = an_newstate; |
| 316 | |
| 317 | ieee80211_media_init(ic, an_media_change, an_media_status); |
| 318 | |
| 319 | /* |
| 320 | * radiotap BPF device |
| 321 | */ |
| 322 | bpf_attach2(ifp, DLT_IEEE802_11_RADIO, |
| 323 | sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); |
| 324 | |
| 325 | memset(&sc->sc_rxtapu, 0, sizeof(sc->sc_rxtapu)); |
| 326 | sc->sc_rxtap.ar_ihdr.it_len = htole16(sizeof(sc->sc_rxtapu)); |
| 327 | sc->sc_rxtap.ar_ihdr.it_present = htole32(AN_RX_RADIOTAP_PRESENT); |
| 328 | |
| 329 | memset(&sc->sc_txtapu, 0, sizeof(sc->sc_txtapu)); |
| 330 | sc->sc_txtap.at_ihdr.it_len = htole16(sizeof(sc->sc_txtapu)); |
| 331 | sc->sc_txtap.at_ihdr.it_present = htole32(AN_TX_RADIOTAP_PRESENT); |
| 332 | |
| 333 | sc->sc_attached = 1; |
| 334 | splx(s); |
| 335 | |
| 336 | ieee80211_announce(ic); |
| 337 | return 0; |
| 338 | } |
| 339 | |
| 340 | #ifdef AN_DEBUG |
| 341 | /* |
| 342 | * Setup sysctl(3) MIB, hw.an.* |
| 343 | * |
| 344 | * TBD condition CTLFLAG_PERMANENT on being a module or not |
| 345 | */ |
| 346 | SYSCTL_SETUP(sysctl_an, "sysctl an(4) subtree setup" ) |
| 347 | { |
| 348 | int rc; |
| 349 | const struct sysctlnode *cnode, *rnode; |
| 350 | |
| 351 | if ((rc = sysctl_createv(clog, 0, NULL, &rnode, |
| 352 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "an" , |
| 353 | "Cisco/Aironet 802.11 controls" , |
| 354 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) |
| 355 | goto err; |
| 356 | |
| 357 | /* control debugging printfs */ |
| 358 | if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, |
| 359 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, |
| 360 | "debug" , SYSCTL_DESCR("Enable Cisco/Aironet debugging output" ), |
| 361 | an_sysctl_verify_debug, 0, &an_debug, 0, |
| 362 | CTL_CREATE, CTL_EOL)) != 0) |
| 363 | goto err; |
| 364 | |
| 365 | return; |
| 366 | err: |
| 367 | printf("%s: sysctl_createv failed (rc = %d)\n" , __func__, rc); |
| 368 | } |
| 369 | |
| 370 | static int |
| 371 | an_sysctl_verify(SYSCTLFN_ARGS, int lower, int upper) |
| 372 | { |
| 373 | int error, t; |
| 374 | struct sysctlnode node; |
| 375 | |
| 376 | node = *rnode; |
| 377 | t = *(int*)rnode->sysctl_data; |
| 378 | node.sysctl_data = &t; |
| 379 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 380 | if (error || newp == NULL) |
| 381 | return (error); |
| 382 | |
| 383 | if (t < lower || t > upper) |
| 384 | return (EINVAL); |
| 385 | |
| 386 | *(int*)rnode->sysctl_data = t; |
| 387 | |
| 388 | return (0); |
| 389 | } |
| 390 | |
| 391 | static int |
| 392 | an_sysctl_verify_debug(SYSCTLFN_ARGS) |
| 393 | { |
| 394 | return an_sysctl_verify(SYSCTLFN_CALL(rnode), 0, 2); |
| 395 | } |
| 396 | #endif /* AN_DEBUG */ |
| 397 | |
| 398 | int |
| 399 | an_detach(struct an_softc *sc) |
| 400 | { |
| 401 | struct ieee80211com *ic = &sc->sc_ic; |
| 402 | struct ifnet *ifp = &sc->sc_if; |
| 403 | int s; |
| 404 | |
| 405 | if (!sc->sc_attached) |
| 406 | return 0; |
| 407 | |
| 408 | s = splnet(); |
| 409 | an_stop(ifp, 1); |
| 410 | ieee80211_ifdetach(ic); |
| 411 | if_detach(ifp); |
| 412 | splx(s); |
| 413 | return 0; |
| 414 | } |
| 415 | |
| 416 | int |
| 417 | an_activate(device_t self, enum devact act) |
| 418 | { |
| 419 | struct an_softc *sc = device_private(self); |
| 420 | |
| 421 | switch (act) { |
| 422 | case DVACT_DEACTIVATE: |
| 423 | if_deactivate(&sc->sc_if); |
| 424 | return 0; |
| 425 | default: |
| 426 | return EOPNOTSUPP; |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | int |
| 431 | an_intr(void *arg) |
| 432 | { |
| 433 | struct an_softc *sc = arg; |
| 434 | struct ifnet *ifp = &sc->sc_if; |
| 435 | int i; |
| 436 | u_int16_t status; |
| 437 | |
| 438 | if (!sc->sc_enabled || !device_is_active(sc->sc_dev) || |
| 439 | (ifp->if_flags & IFF_RUNNING) == 0) |
| 440 | return 0; |
| 441 | |
| 442 | if ((ifp->if_flags & IFF_UP) == 0) { |
| 443 | CSR_WRITE_2(sc, AN_INT_EN, 0); |
| 444 | CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); |
| 445 | return 1; |
| 446 | } |
| 447 | |
| 448 | /* maximum 10 loops per interrupt */ |
| 449 | for (i = 0; i < 10; i++) { |
| 450 | if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) |
| 451 | return 1; |
| 452 | if (CSR_READ_2(sc, AN_SW0) != AN_MAGIC) { |
| 453 | DPRINTF(("an_intr: magic number changed: %x\n" , |
| 454 | CSR_READ_2(sc, AN_SW0))); |
| 455 | config_deactivate(sc->sc_dev); |
| 456 | return 1; |
| 457 | } |
| 458 | status = CSR_READ_2(sc, AN_EVENT_STAT); |
| 459 | CSR_WRITE_2(sc, AN_EVENT_ACK, status & ~(AN_INTRS)); |
| 460 | if ((status & AN_INTRS) == 0) |
| 461 | break; |
| 462 | |
| 463 | if (status & AN_EV_RX) |
| 464 | an_rx_intr(sc); |
| 465 | |
| 466 | if (status & (AN_EV_TX | AN_EV_TX_EXC)) |
| 467 | an_tx_intr(sc, status); |
| 468 | |
| 469 | if (status & AN_EV_LINKSTAT) |
| 470 | an_linkstat_intr(sc); |
| 471 | |
| 472 | if ((ifp->if_flags & IFF_OACTIVE) == 0 && |
| 473 | sc->sc_ic.ic_state == IEEE80211_S_RUN && |
| 474 | !IFQ_IS_EMPTY(&ifp->if_snd)) |
| 475 | an_start(ifp); |
| 476 | } |
| 477 | |
| 478 | return 1; |
| 479 | } |
| 480 | |
| 481 | static int |
| 482 | an_init(struct ifnet *ifp) |
| 483 | { |
| 484 | struct an_softc *sc = ifp->if_softc; |
| 485 | struct ieee80211com *ic = &sc->sc_ic; |
| 486 | int i, error, fid; |
| 487 | |
| 488 | DPRINTF(("an_init: enabled %d\n" , sc->sc_enabled)); |
| 489 | if (!sc->sc_enabled) { |
| 490 | if (sc->sc_enable) |
| 491 | (*sc->sc_enable)(sc); |
| 492 | an_wait(sc); |
| 493 | sc->sc_enabled = 1; |
| 494 | } else { |
| 495 | an_stop(ifp, 0); |
| 496 | if ((error = an_reset(sc)) != 0) { |
| 497 | printf("%s: failed to reset\n" , ifp->if_xname); |
| 498 | an_stop(ifp, 1); |
| 499 | return error; |
| 500 | } |
| 501 | } |
| 502 | CSR_WRITE_2(sc, AN_SW0, AN_MAGIC); |
| 503 | |
| 504 | /* Allocate the TX buffers */ |
| 505 | for (i = 0; i < AN_TX_RING_CNT; i++) { |
| 506 | if ((error = an_alloc_fid(sc, AN_TX_MAX_LEN, &fid)) != 0) { |
| 507 | printf("%s: failed to allocate nic memory\n" , |
| 508 | ifp->if_xname); |
| 509 | an_stop(ifp, 1); |
| 510 | return error; |
| 511 | } |
| 512 | DPRINTF2(("an_init: txbuf %d allocated %x\n" , i, fid)); |
| 513 | sc->sc_txd[i].d_fid = fid; |
| 514 | sc->sc_txd[i].d_inuse = 0; |
| 515 | } |
| 516 | sc->sc_txcur = sc->sc_txnext = 0; |
| 517 | |
| 518 | IEEE80211_ADDR_COPY(sc->sc_config.an_macaddr, ic->ic_myaddr); |
| 519 | sc->sc_config.an_scanmode = htole16(AN_SCANMODE_ACTIVE); |
| 520 | sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_OPEN); /*XXX*/ |
| 521 | if (ic->ic_flags & IEEE80211_F_PRIVACY) { |
| 522 | sc->sc_config.an_authtype |= |
| 523 | htole16(AN_AUTHTYPE_PRIVACY_IN_USE); |
| 524 | if (sc->sc_use_leap) |
| 525 | sc->sc_config.an_authtype |= |
| 526 | htole16(AN_AUTHTYPE_LEAP); |
| 527 | } |
| 528 | sc->sc_config.an_listen_interval = htole16(ic->ic_lintval); |
| 529 | sc->sc_config.an_beacon_period = htole16(ic->ic_lintval); |
| 530 | if (ic->ic_flags & IEEE80211_F_PMGTON) |
| 531 | sc->sc_config.an_psave_mode = htole16(AN_PSAVE_PSP); |
| 532 | else |
| 533 | sc->sc_config.an_psave_mode = htole16(AN_PSAVE_CAM); |
| 534 | sc->sc_config.an_ds_channel = |
| 535 | htole16(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); |
| 536 | |
| 537 | switch (ic->ic_opmode) { |
| 538 | case IEEE80211_M_STA: |
| 539 | sc->sc_config.an_opmode = |
| 540 | htole16(AN_OPMODE_INFRASTRUCTURE_STATION); |
| 541 | sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); |
| 542 | break; |
| 543 | case IEEE80211_M_IBSS: |
| 544 | sc->sc_config.an_opmode = htole16(AN_OPMODE_IBSS_ADHOC); |
| 545 | sc->sc_config.an_rxmode = htole16(AN_RXMODE_BC_MC_ADDR); |
| 546 | break; |
| 547 | case IEEE80211_M_MONITOR: |
| 548 | sc->sc_config.an_opmode = |
| 549 | htole16(AN_OPMODE_INFRASTRUCTURE_STATION); |
| 550 | sc->sc_config.an_rxmode = |
| 551 | htole16(AN_RXMODE_80211_MONITOR_ANYBSS); |
| 552 | sc->sc_config.an_authtype = htole16(AN_AUTHTYPE_NONE); |
| 553 | if (ic->ic_flags & IEEE80211_F_PRIVACY) |
| 554 | sc->sc_config.an_authtype |= |
| 555 | htole16(AN_AUTHTYPE_PRIVACY_IN_USE | |
| 556 | AN_AUTHTYPE_ALLOW_UNENCRYPTED); |
| 557 | break; |
| 558 | default: |
| 559 | printf("%s: bad opmode %d\n" , ifp->if_xname, ic->ic_opmode); |
| 560 | an_stop(ifp, 1); |
| 561 | return EIO; |
| 562 | } |
| 563 | sc->sc_config.an_rxmode |= htole16(AN_RXMODE_NO_8023_HEADER); |
| 564 | |
| 565 | /* Set the ssid list */ |
| 566 | memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_ssidlist)); |
| 567 | sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid_len = |
| 568 | htole16(ic->ic_des_esslen); |
| 569 | if (ic->ic_des_esslen) |
| 570 | memcpy(sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid, |
| 571 | ic->ic_des_essid, ic->ic_des_esslen); |
| 572 | if ((error = an_write_rid(sc, AN_RID_SSIDLIST, &sc->sc_buf, |
| 573 | sizeof(sc->sc_buf.sc_ssidlist))) != 0) { |
| 574 | printf("%s: failed to write ssid list\n" , ifp->if_xname); |
| 575 | an_stop(ifp, 1); |
| 576 | return error; |
| 577 | } |
| 578 | |
| 579 | /* Set the AP list */ |
| 580 | memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_aplist)); |
| 581 | (void)an_write_rid(sc, AN_RID_APLIST, &sc->sc_buf, |
| 582 | sizeof(sc->sc_buf.sc_aplist)); |
| 583 | |
| 584 | /* Set the encapsulation */ |
| 585 | for (i = 0; i < AN_ENCAP_NENTS; i++) { |
| 586 | sc->sc_buf.sc_encap.an_entry[i].an_ethertype = htole16(0); |
| 587 | sc->sc_buf.sc_encap.an_entry[i].an_action = |
| 588 | htole16(AN_RXENCAP_RFC1024 | AN_TXENCAP_RFC1024); |
| 589 | } |
| 590 | (void)an_write_rid(sc, AN_RID_ENCAP, &sc->sc_buf, |
| 591 | sizeof(sc->sc_buf.sc_encap)); |
| 592 | |
| 593 | /* Set the WEP Keys */ |
| 594 | if (ic->ic_flags & IEEE80211_F_PRIVACY) |
| 595 | an_write_wepkey(sc, AN_RID_WEP_VOLATILE, sc->sc_wepkeys, |
| 596 | sc->sc_tx_key); |
| 597 | |
| 598 | /* Set the configuration */ |
| 599 | #ifdef AN_DEBUG |
| 600 | if (an_debug) { |
| 601 | printf("write config:\n" ); |
| 602 | for (i = 0; i < sizeof(sc->sc_config) / 2; i++) |
| 603 | printf(" %04x" , ((u_int16_t *)&sc->sc_config)[i]); |
| 604 | printf("\n" ); |
| 605 | } |
| 606 | #endif |
| 607 | if ((error = an_write_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, |
| 608 | sizeof(sc->sc_config))) != 0) { |
| 609 | printf("%s: failed to write config\n" , ifp->if_xname); |
| 610 | an_stop(ifp, 1); |
| 611 | return error; |
| 612 | } |
| 613 | |
| 614 | /* Enable the MAC */ |
| 615 | if (an_cmd(sc, AN_CMD_ENABLE, 0)) { |
| 616 | aprint_error_dev(sc->sc_dev, "failed to enable MAC\n" ); |
| 617 | an_stop(ifp, 1); |
| 618 | return ENXIO; |
| 619 | } |
| 620 | if (ifp->if_flags & IFF_PROMISC) |
| 621 | an_cmd(sc, AN_CMD_SET_MODE, 0xffff); |
| 622 | |
| 623 | ifp->if_flags |= IFF_RUNNING; |
| 624 | ifp->if_flags &= ~IFF_OACTIVE; |
| 625 | ic->ic_state = IEEE80211_S_INIT; |
| 626 | if (ic->ic_opmode == IEEE80211_M_MONITOR) |
| 627 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 628 | |
| 629 | /* enable interrupts */ |
| 630 | CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | static void |
| 635 | an_stop(struct ifnet *ifp, int disable) |
| 636 | { |
| 637 | struct an_softc *sc = ifp->if_softc; |
| 638 | int i, s; |
| 639 | |
| 640 | if (!sc->sc_enabled) |
| 641 | return; |
| 642 | |
| 643 | DPRINTF(("an_stop: disable %d\n" , disable)); |
| 644 | |
| 645 | s = splnet(); |
| 646 | ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); |
| 647 | if (device_is_active(sc->sc_dev)) { |
| 648 | an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0); |
| 649 | CSR_WRITE_2(sc, AN_INT_EN, 0); |
| 650 | an_cmd(sc, AN_CMD_DISABLE, 0); |
| 651 | |
| 652 | for (i = 0; i < AN_TX_RING_CNT; i++) |
| 653 | an_cmd(sc, AN_CMD_DEALLOC_MEM, sc->sc_txd[i].d_fid); |
| 654 | } |
| 655 | |
| 656 | sc->sc_tx_timer = 0; |
| 657 | ifp->if_timer = 0; |
| 658 | ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); |
| 659 | |
| 660 | if (disable) { |
| 661 | if (sc->sc_disable) |
| 662 | (*sc->sc_disable)(sc); |
| 663 | sc->sc_enabled = 0; |
| 664 | } |
| 665 | splx(s); |
| 666 | } |
| 667 | |
| 668 | static void |
| 669 | an_start(struct ifnet *ifp) |
| 670 | { |
| 671 | struct an_softc *sc = (struct an_softc *)ifp->if_softc; |
| 672 | struct ieee80211com *ic = &sc->sc_ic; |
| 673 | struct ieee80211_node *ni; |
| 674 | struct ieee80211_frame *wh; |
| 675 | struct an_txframe frmhdr; |
| 676 | struct ether_header *eh; |
| 677 | struct mbuf *m; |
| 678 | u_int16_t len; |
| 679 | int cur, fid; |
| 680 | |
| 681 | if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) { |
| 682 | DPRINTF(("an_start: noop: enabled %d invalid %d\n" , |
| 683 | sc->sc_enabled, !device_is_active(sc->sc_dev))); |
| 684 | return; |
| 685 | } |
| 686 | |
| 687 | memset(&frmhdr, 0, sizeof(frmhdr)); |
| 688 | cur = sc->sc_txnext; |
| 689 | for (;;) { |
| 690 | if (ic->ic_state != IEEE80211_S_RUN) { |
| 691 | DPRINTF(("an_start: not running %d\n" , ic->ic_state)); |
| 692 | break; |
| 693 | } |
| 694 | IFQ_POLL(&ifp->if_snd, m); |
| 695 | if (m == NULL) { |
| 696 | DPRINTF2(("an_start: no pending mbuf\n" )); |
| 697 | break; |
| 698 | } |
| 699 | if (sc->sc_txd[cur].d_inuse) { |
| 700 | DPRINTF2(("an_start: %x/%d busy\n" , |
| 701 | sc->sc_txd[cur].d_fid, cur)); |
| 702 | ifp->if_flags |= IFF_OACTIVE; |
| 703 | break; |
| 704 | } |
| 705 | IFQ_DEQUEUE(&ifp->if_snd, m); |
| 706 | ifp->if_opackets++; |
| 707 | bpf_mtap(ifp, m); |
| 708 | eh = mtod(m, struct ether_header *); |
| 709 | ni = ieee80211_find_txnode(ic, eh->ether_dhost); |
| 710 | if (ni == NULL) { |
| 711 | /* NB: ieee80211_find_txnode does stat+msg */ |
| 712 | goto bad; |
| 713 | } |
| 714 | if ((m = ieee80211_encap(ic, m, ni)) == NULL) |
| 715 | goto bad; |
| 716 | ieee80211_free_node(ni); |
| 717 | bpf_mtap3(ic->ic_rawbpf, m); |
| 718 | |
| 719 | wh = mtod(m, struct ieee80211_frame *); |
| 720 | if (ic->ic_flags & IEEE80211_F_PRIVACY) |
| 721 | wh->i_fc[1] |= IEEE80211_FC1_WEP; |
| 722 | m_copydata(m, 0, sizeof(struct ieee80211_frame), |
| 723 | (void *)&frmhdr.an_whdr); |
| 724 | |
| 725 | /* insert payload length in front of llc/snap */ |
| 726 | len = htons(m->m_pkthdr.len - sizeof(struct ieee80211_frame)); |
| 727 | m_adj(m, sizeof(struct ieee80211_frame) - sizeof(len)); |
| 728 | if (mtod(m, u_long) & 0x01) |
| 729 | memcpy(mtod(m, void *), &len, sizeof(len)); |
| 730 | else |
| 731 | *mtod(m, u_int16_t *) = len; |
| 732 | |
| 733 | /* |
| 734 | * XXX Aironet firmware apparently convert the packet |
| 735 | * with longer than 1500 bytes in length into LLC/SNAP. |
| 736 | * If we have 1500 bytes in ethernet payload, it is |
| 737 | * 1508 bytes including LLC/SNAP and will be inserted |
| 738 | * additional LLC/SNAP header with 1501-1508 in its |
| 739 | * ethertype !! |
| 740 | * So we skip LLC/SNAP header and force firmware to |
| 741 | * convert it to LLC/SNAP again. |
| 742 | */ |
| 743 | m_adj(m, sizeof(struct llc)); |
| 744 | |
| 745 | frmhdr.an_tx_ctl = htole16(AN_TXCTL_80211); |
| 746 | frmhdr.an_tx_payload_len = htole16(m->m_pkthdr.len); |
| 747 | frmhdr.an_gaplen = htole16(AN_TXGAP_802_11); |
| 748 | |
| 749 | if (ic->ic_fixed_rate != -1) |
| 750 | frmhdr.an_tx_rate = |
| 751 | ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ |
| 752 | ic->ic_fixed_rate] & IEEE80211_RATE_VAL; |
| 753 | else |
| 754 | frmhdr.an_tx_rate = 0; |
| 755 | |
| 756 | /* XXX radiotap for tx must be completed */ |
| 757 | if (sc->sc_drvbpf) { |
| 758 | struct an_tx_radiotap_header *tap = &sc->sc_txtap; |
| 759 | tap->at_rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate]; |
| 760 | tap->at_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); |
| 761 | tap->at_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); |
| 762 | /* TBD tap->wt_flags */ |
| 763 | bpf_mtap2(sc->sc_drvbpf, tap, tap->at_ihdr.it_len, m); |
| 764 | } |
| 765 | |
| 766 | #ifdef AN_DEBUG |
| 767 | if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == |
| 768 | (IFF_DEBUG|IFF_LINK2)) { |
| 769 | ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, |
| 770 | sizeof(struct ieee80211_frame), -1, 0); |
| 771 | printf(" txctl 0x%x plen %u\n" , |
| 772 | le16toh(frmhdr.an_tx_ctl), |
| 773 | le16toh(frmhdr.an_tx_payload_len)); |
| 774 | } |
| 775 | #endif |
| 776 | if (sizeof(frmhdr) + AN_TXGAP_802_11 + sizeof(len) + |
| 777 | m->m_pkthdr.len > AN_TX_MAX_LEN) |
| 778 | goto bad; |
| 779 | |
| 780 | fid = sc->sc_txd[cur].d_fid; |
| 781 | if (an_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) |
| 782 | goto bad; |
| 783 | /* dummy write to avoid seek. */ |
| 784 | an_write_bap(sc, fid, -1, &frmhdr, AN_TXGAP_802_11); |
| 785 | an_mwrite_bap(sc, fid, -1, m, m->m_pkthdr.len); |
| 786 | m_freem(m); |
| 787 | |
| 788 | DPRINTF2(("an_start: send %zu byte via %x/%d\n" , |
| 789 | ntohs(len) + sizeof(struct ieee80211_frame), |
| 790 | fid, cur)); |
| 791 | sc->sc_txd[cur].d_inuse = 1; |
| 792 | if (an_cmd(sc, AN_CMD_TX, fid)) { |
| 793 | printf("%s: xmit failed\n" , ifp->if_xname); |
| 794 | sc->sc_txd[cur].d_inuse = 0; |
| 795 | continue; |
| 796 | } |
| 797 | sc->sc_tx_timer = 5; |
| 798 | ifp->if_timer = 1; |
| 799 | AN_INC(cur, AN_TX_RING_CNT); |
| 800 | sc->sc_txnext = cur; |
| 801 | continue; |
| 802 | bad: |
| 803 | ifp->if_oerrors++; |
| 804 | m_freem(m); |
| 805 | } |
| 806 | } |
| 807 | |
| 808 | static int |
| 809 | an_reset(struct an_softc *sc) |
| 810 | { |
| 811 | |
| 812 | DPRINTF(("an_reset\n" )); |
| 813 | |
| 814 | if (!sc->sc_enabled) |
| 815 | return ENXIO; |
| 816 | |
| 817 | an_cmd(sc, AN_CMD_ENABLE, 0); |
| 818 | an_cmd(sc, AN_CMD_FW_RESTART, 0); |
| 819 | an_cmd(sc, AN_CMD_NOOP2, 0); |
| 820 | |
| 821 | if (an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0) == ETIMEDOUT) { |
| 822 | aprint_error_dev(sc->sc_dev, "reset failed\n" ); |
| 823 | return ETIMEDOUT; |
| 824 | } |
| 825 | |
| 826 | an_cmd(sc, AN_CMD_DISABLE, 0); |
| 827 | return 0; |
| 828 | } |
| 829 | |
| 830 | static void |
| 831 | an_watchdog(struct ifnet *ifp) |
| 832 | { |
| 833 | struct an_softc *sc = ifp->if_softc; |
| 834 | |
| 835 | if (!sc->sc_enabled) |
| 836 | return; |
| 837 | |
| 838 | if (sc->sc_tx_timer) { |
| 839 | if (--sc->sc_tx_timer == 0) { |
| 840 | printf("%s: device timeout\n" , ifp->if_xname); |
| 841 | ifp->if_oerrors++; |
| 842 | an_init(ifp); |
| 843 | return; |
| 844 | } |
| 845 | ifp->if_timer = 1; |
| 846 | } |
| 847 | ieee80211_watchdog(&sc->sc_ic); |
| 848 | } |
| 849 | |
| 850 | static int |
| 851 | an_ioctl(struct ifnet *ifp, u_long command, void *data) |
| 852 | { |
| 853 | struct an_softc *sc = ifp->if_softc; |
| 854 | int s, error = 0; |
| 855 | |
| 856 | if (!device_is_active(sc->sc_dev)) |
| 857 | return ENXIO; |
| 858 | |
| 859 | s = splnet(); |
| 860 | |
| 861 | switch (command) { |
| 862 | case SIOCSIFFLAGS: |
| 863 | if ((error = ifioctl_common(ifp, command, data)) != 0) |
| 864 | break; |
| 865 | if (ifp->if_flags & IFF_UP) { |
| 866 | if (sc->sc_enabled) { |
| 867 | /* |
| 868 | * To avoid rescanning another access point, |
| 869 | * do not call an_init() here. Instead, only |
| 870 | * reflect promisc mode settings. |
| 871 | */ |
| 872 | error = an_cmd(sc, AN_CMD_SET_MODE, |
| 873 | (ifp->if_flags & IFF_PROMISC) ? 0xffff : 0); |
| 874 | } else |
| 875 | error = an_init(ifp); |
| 876 | } else if (sc->sc_enabled) |
| 877 | an_stop(ifp, 1); |
| 878 | break; |
| 879 | case SIOCADDMULTI: |
| 880 | case SIOCDELMULTI: |
| 881 | error = ether_ioctl(ifp, command, data); |
| 882 | if (error == ENETRESET) { |
| 883 | /* we don't have multicast filter. */ |
| 884 | error = 0; |
| 885 | } |
| 886 | break; |
| 887 | case SIOCS80211NWKEY: |
| 888 | error = an_set_nwkey(sc, (struct ieee80211_nwkey *)data); |
| 889 | break; |
| 890 | case SIOCG80211NWKEY: |
| 891 | error = an_get_nwkey(sc, (struct ieee80211_nwkey *)data); |
| 892 | break; |
| 893 | default: |
| 894 | error = ieee80211_ioctl(&sc->sc_ic, command, data); |
| 895 | break; |
| 896 | } |
| 897 | if (error == ENETRESET) { |
| 898 | if (sc->sc_enabled) |
| 899 | error = an_init(ifp); |
| 900 | else |
| 901 | error = 0; |
| 902 | } |
| 903 | splx(s); |
| 904 | return error; |
| 905 | } |
| 906 | |
| 907 | /* TBD factor with ieee80211_media_change */ |
| 908 | static int |
| 909 | an_media_change(struct ifnet *ifp) |
| 910 | { |
| 911 | struct an_softc *sc = ifp->if_softc; |
| 912 | struct ieee80211com *ic = &sc->sc_ic; |
| 913 | struct ifmedia_entry *ime; |
| 914 | enum ieee80211_opmode newmode; |
| 915 | int i, rate, error = 0; |
| 916 | |
| 917 | ime = ic->ic_media.ifm_cur; |
| 918 | if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { |
| 919 | i = -1; |
| 920 | } else { |
| 921 | struct ieee80211_rateset *rs = |
| 922 | &ic->ic_sup_rates[IEEE80211_MODE_11B]; |
| 923 | rate = ieee80211_media2rate(ime->ifm_media); |
| 924 | if (rate == 0) |
| 925 | return EINVAL; |
| 926 | for (i = 0; i < rs->rs_nrates; i++) { |
| 927 | if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) |
| 928 | break; |
| 929 | } |
| 930 | if (i == rs->rs_nrates) |
| 931 | return EINVAL; |
| 932 | } |
| 933 | if (ic->ic_fixed_rate != i) { |
| 934 | ic->ic_fixed_rate = i; |
| 935 | error = ENETRESET; |
| 936 | } |
| 937 | |
| 938 | if (ime->ifm_media & IFM_IEEE80211_ADHOC) |
| 939 | newmode = IEEE80211_M_IBSS; |
| 940 | else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) |
| 941 | newmode = IEEE80211_M_HOSTAP; |
| 942 | else if (ime->ifm_media & IFM_IEEE80211_MONITOR) |
| 943 | newmode = IEEE80211_M_MONITOR; |
| 944 | else |
| 945 | newmode = IEEE80211_M_STA; |
| 946 | if (ic->ic_opmode != newmode) { |
| 947 | ic->ic_opmode = newmode; |
| 948 | error = ENETRESET; |
| 949 | } |
| 950 | if (error == ENETRESET) { |
| 951 | if (sc->sc_enabled) |
| 952 | error = an_init(ifp); |
| 953 | else |
| 954 | error = 0; |
| 955 | } |
| 956 | ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); |
| 957 | |
| 958 | return error; |
| 959 | } |
| 960 | |
| 961 | static void |
| 962 | an_media_status(struct ifnet *ifp, struct ifmediareq *imr) |
| 963 | { |
| 964 | struct an_softc *sc = ifp->if_softc; |
| 965 | struct ieee80211com *ic = &sc->sc_ic; |
| 966 | int rate, buflen; |
| 967 | |
| 968 | if (sc->sc_enabled == 0) { |
| 969 | imr->ifm_active = IFM_IEEE80211 | IFM_NONE; |
| 970 | imr->ifm_status = 0; |
| 971 | return; |
| 972 | } |
| 973 | |
| 974 | imr->ifm_status = IFM_AVALID; |
| 975 | imr->ifm_active = IFM_IEEE80211; |
| 976 | if (ic->ic_state == IEEE80211_S_RUN) |
| 977 | imr->ifm_status |= IFM_ACTIVE; |
| 978 | buflen = sizeof(sc->sc_buf); |
| 979 | if (ic->ic_fixed_rate != -1) |
| 980 | rate = ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ |
| 981 | ic->ic_fixed_rate] & IEEE80211_RATE_VAL; |
| 982 | else if (an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen) != 0) |
| 983 | rate = 0; |
| 984 | else |
| 985 | rate = le16toh(sc->sc_buf.sc_status.an_current_tx_rate); |
| 986 | imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); |
| 987 | switch (ic->ic_opmode) { |
| 988 | case IEEE80211_M_STA: |
| 989 | break; |
| 990 | case IEEE80211_M_IBSS: |
| 991 | imr->ifm_active |= IFM_IEEE80211_ADHOC; |
| 992 | break; |
| 993 | case IEEE80211_M_HOSTAP: |
| 994 | imr->ifm_active |= IFM_IEEE80211_HOSTAP; |
| 995 | break; |
| 996 | case IEEE80211_M_MONITOR: |
| 997 | imr->ifm_active |= IFM_IEEE80211_MONITOR; |
| 998 | break; |
| 999 | default: |
| 1000 | break; |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | static int |
| 1005 | an_set_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) |
| 1006 | { |
| 1007 | int error; |
| 1008 | struct ieee80211com *ic = &sc->sc_ic; |
| 1009 | u_int16_t prevauth; |
| 1010 | |
| 1011 | error = 0; |
| 1012 | prevauth = sc->sc_config.an_authtype; |
| 1013 | |
| 1014 | switch (nwkey->i_wepon) { |
| 1015 | case IEEE80211_NWKEY_OPEN: |
| 1016 | sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN; |
| 1017 | ic->ic_flags &= ~IEEE80211_F_PRIVACY; |
| 1018 | break; |
| 1019 | |
| 1020 | case IEEE80211_NWKEY_WEP: |
| 1021 | case IEEE80211_NWKEY_WEP | IEEE80211_NWKEY_PERSIST: |
| 1022 | error = an_set_nwkey_wep(sc, nwkey); |
| 1023 | if (error == 0 || error == ENETRESET) { |
| 1024 | sc->sc_config.an_authtype = |
| 1025 | AN_AUTHTYPE_OPEN | AN_AUTHTYPE_PRIVACY_IN_USE; |
| 1026 | ic->ic_flags |= IEEE80211_F_PRIVACY; |
| 1027 | } |
| 1028 | break; |
| 1029 | |
| 1030 | case IEEE80211_NWKEY_EAP: |
| 1031 | error = an_set_nwkey_eap(sc, nwkey); |
| 1032 | if (error == 0 || error == ENETRESET) { |
| 1033 | sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN | |
| 1034 | AN_AUTHTYPE_PRIVACY_IN_USE | AN_AUTHTYPE_LEAP; |
| 1035 | ic->ic_flags |= IEEE80211_F_PRIVACY; |
| 1036 | } |
| 1037 | break; |
| 1038 | default: |
| 1039 | error = EINVAL; |
| 1040 | break; |
| 1041 | } |
| 1042 | if (error == 0 && prevauth != sc->sc_config.an_authtype) |
| 1043 | error = ENETRESET; |
| 1044 | return error; |
| 1045 | } |
| 1046 | |
| 1047 | static int |
| 1048 | an_set_nwkey_wep(struct an_softc *sc, struct ieee80211_nwkey *nwkey) |
| 1049 | { |
| 1050 | int i, txkey, anysetkey, needreset, error; |
| 1051 | struct an_wepkey keys[IEEE80211_WEP_NKID]; |
| 1052 | |
| 1053 | error = 0; |
| 1054 | memset(keys, 0, sizeof(keys)); |
| 1055 | anysetkey = needreset = 0; |
| 1056 | |
| 1057 | /* load argument and sanity check */ |
| 1058 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 1059 | keys[i].an_wep_keylen = nwkey->i_key[i].i_keylen; |
| 1060 | if (keys[i].an_wep_keylen < 0) |
| 1061 | continue; |
| 1062 | if (keys[i].an_wep_keylen != 0 && |
| 1063 | keys[i].an_wep_keylen < IEEE80211_WEP_KEYLEN) |
| 1064 | return EINVAL; |
| 1065 | if (keys[i].an_wep_keylen > sizeof(keys[i].an_wep_key)) |
| 1066 | return EINVAL; |
| 1067 | if ((error = copyin(nwkey->i_key[i].i_keydat, |
| 1068 | keys[i].an_wep_key, keys[i].an_wep_keylen)) != 0) |
| 1069 | return error; |
| 1070 | anysetkey++; |
| 1071 | } |
| 1072 | txkey = nwkey->i_defkid - 1; |
| 1073 | if (txkey >= 0) { |
| 1074 | if (txkey >= IEEE80211_WEP_NKID) |
| 1075 | return EINVAL; |
| 1076 | /* default key must have a valid value */ |
| 1077 | if (keys[txkey].an_wep_keylen == 0 || |
| 1078 | (keys[txkey].an_wep_keylen < 0 && |
| 1079 | sc->sc_perskeylen[txkey] == 0)) |
| 1080 | return EINVAL; |
| 1081 | anysetkey++; |
| 1082 | } |
| 1083 | DPRINTF(("an_set_nwkey_wep: %s: %sold(%d:%d,%d,%d,%d) " |
| 1084 | "pers(%d:%d,%d,%d,%d) new(%d:%d,%d,%d,%d)\n" , |
| 1085 | device_xname(sc->sc_dev), |
| 1086 | ((nwkey->i_wepon & IEEE80211_NWKEY_PERSIST) ? "persist: " : "" ), |
| 1087 | sc->sc_tx_key, |
| 1088 | sc->sc_wepkeys[0].an_wep_keylen, sc->sc_wepkeys[1].an_wep_keylen, |
| 1089 | sc->sc_wepkeys[2].an_wep_keylen, sc->sc_wepkeys[3].an_wep_keylen, |
| 1090 | sc->sc_tx_perskey, |
| 1091 | sc->sc_perskeylen[0], sc->sc_perskeylen[1], |
| 1092 | sc->sc_perskeylen[2], sc->sc_perskeylen[3], |
| 1093 | txkey, |
| 1094 | keys[0].an_wep_keylen, keys[1].an_wep_keylen, |
| 1095 | keys[2].an_wep_keylen, keys[3].an_wep_keylen)); |
| 1096 | if (!(nwkey->i_wepon & IEEE80211_NWKEY_PERSIST)) { |
| 1097 | /* set temporary keys */ |
| 1098 | sc->sc_tx_key = txkey; |
| 1099 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 1100 | if (keys[i].an_wep_keylen < 0) |
| 1101 | continue; |
| 1102 | memcpy(&sc->sc_wepkeys[i], &keys[i], sizeof(keys[i])); |
| 1103 | } |
| 1104 | } else { |
| 1105 | /* set persist keys */ |
| 1106 | if (anysetkey) { |
| 1107 | /* prepare to write nvram */ |
| 1108 | if (!sc->sc_enabled) { |
| 1109 | if (sc->sc_enable) |
| 1110 | (*sc->sc_enable)(sc); |
| 1111 | an_wait(sc); |
| 1112 | sc->sc_enabled = 1; |
| 1113 | error = an_write_wepkey(sc, |
| 1114 | AN_RID_WEP_PERSISTENT, keys, txkey); |
| 1115 | if (sc->sc_disable) |
| 1116 | (*sc->sc_disable)(sc); |
| 1117 | sc->sc_enabled = 0; |
| 1118 | } else { |
| 1119 | an_cmd(sc, AN_CMD_DISABLE, 0); |
| 1120 | error = an_write_wepkey(sc, |
| 1121 | AN_RID_WEP_PERSISTENT, keys, txkey); |
| 1122 | an_cmd(sc, AN_CMD_ENABLE, 0); |
| 1123 | } |
| 1124 | if (error) |
| 1125 | return error; |
| 1126 | } |
| 1127 | if (txkey >= 0) |
| 1128 | sc->sc_tx_perskey = txkey; |
| 1129 | if (sc->sc_tx_key >= 0) { |
| 1130 | sc->sc_tx_key = -1; |
| 1131 | needreset++; |
| 1132 | } |
| 1133 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 1134 | if (sc->sc_wepkeys[i].an_wep_keylen >= 0) { |
| 1135 | memset(&sc->sc_wepkeys[i].an_wep_key, 0, |
| 1136 | sizeof(sc->sc_wepkeys[i].an_wep_key)); |
| 1137 | sc->sc_wepkeys[i].an_wep_keylen = -1; |
| 1138 | needreset++; |
| 1139 | } |
| 1140 | if (keys[i].an_wep_keylen >= 0) |
| 1141 | sc->sc_perskeylen[i] = keys[i].an_wep_keylen; |
| 1142 | } |
| 1143 | } |
| 1144 | if (needreset) { |
| 1145 | /* firmware restart to reload persistent key */ |
| 1146 | an_reset(sc); |
| 1147 | } |
| 1148 | if (anysetkey || needreset) |
| 1149 | error = ENETRESET; |
| 1150 | return error; |
| 1151 | } |
| 1152 | |
| 1153 | static int |
| 1154 | an_set_nwkey_eap(struct an_softc *sc, struct ieee80211_nwkey *nwkey) |
| 1155 | { |
| 1156 | int i, error, len; |
| 1157 | struct ifnet *ifp = &sc->sc_if; |
| 1158 | struct an_rid_leapkey *key; |
| 1159 | u_int16_t unibuf[sizeof(key->an_key)]; |
| 1160 | static const int leap_rid[] = { AN_RID_LEAP_PASS, AN_RID_LEAP_USER }; |
| 1161 | MD4_CTX ctx; |
| 1162 | |
| 1163 | error = 0; |
| 1164 | |
| 1165 | if (nwkey->i_key[0].i_keydat == NULL && |
| 1166 | nwkey->i_key[1].i_keydat == NULL) |
| 1167 | return 0; |
| 1168 | if (!sc->sc_enabled) |
| 1169 | return ENXIO; |
| 1170 | an_cmd(sc, AN_CMD_DISABLE, 0); |
| 1171 | key = &sc->sc_buf.sc_leapkey; |
| 1172 | for (i = 0; i < 2; i++) { |
| 1173 | if (nwkey->i_key[i].i_keydat == NULL) |
| 1174 | continue; |
| 1175 | len = nwkey->i_key[i].i_keylen; |
| 1176 | if (len > sizeof(key->an_key)) |
| 1177 | return EINVAL; |
| 1178 | memset(key, 0, sizeof(*key)); |
| 1179 | key->an_key_len = htole16(len); |
| 1180 | if ((error = copyin(nwkey->i_key[i].i_keydat, key->an_key, |
| 1181 | len)) != 0) |
| 1182 | return error; |
| 1183 | if (i == 1) { |
| 1184 | /* |
| 1185 | * Cisco seems to use PasswordHash and PasswordHashHash |
| 1186 | * in RFC-2759 (MS-CHAP-V2). |
| 1187 | */ |
| 1188 | memset(unibuf, 0, sizeof(unibuf)); |
| 1189 | /* XXX: convert password to unicode */ |
| 1190 | for (i = 0; i < len; i++) |
| 1191 | unibuf[i] = key->an_key[i]; |
| 1192 | /* set PasswordHash */ |
| 1193 | MD4Init(&ctx); |
| 1194 | MD4Update(&ctx, (u_int8_t *)unibuf, len * 2); |
| 1195 | MD4Final(key->an_key, &ctx); |
| 1196 | /* set PasswordHashHash */ |
| 1197 | MD4Init(&ctx); |
| 1198 | MD4Update(&ctx, key->an_key, 16); |
| 1199 | MD4Final(key->an_key + 16, &ctx); |
| 1200 | key->an_key_len = htole16(32); |
| 1201 | } |
| 1202 | if ((error = an_write_rid(sc, leap_rid[i], key, |
| 1203 | sizeof(*key))) != 0) { |
| 1204 | printf("%s: LEAP set failed\n" , ifp->if_xname); |
| 1205 | return error; |
| 1206 | } |
| 1207 | } |
| 1208 | error = an_cmd(sc, AN_CMD_ENABLE, 0); |
| 1209 | if (error) |
| 1210 | printf("%s: an_set_nwkey: failed to enable MAC\n" , |
| 1211 | ifp->if_xname); |
| 1212 | else |
| 1213 | error = ENETRESET; |
| 1214 | return error; |
| 1215 | } |
| 1216 | |
| 1217 | static int |
| 1218 | an_get_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) |
| 1219 | { |
| 1220 | int i, error; |
| 1221 | |
| 1222 | error = 0; |
| 1223 | if (sc->sc_config.an_authtype & AN_AUTHTYPE_LEAP) |
| 1224 | nwkey->i_wepon = IEEE80211_NWKEY_EAP; |
| 1225 | else if (sc->sc_config.an_authtype & AN_AUTHTYPE_PRIVACY_IN_USE) |
| 1226 | nwkey->i_wepon = IEEE80211_NWKEY_WEP; |
| 1227 | else |
| 1228 | nwkey->i_wepon = IEEE80211_NWKEY_OPEN; |
| 1229 | if (sc->sc_tx_key == -1) |
| 1230 | nwkey->i_defkid = sc->sc_tx_perskey + 1; |
| 1231 | else |
| 1232 | nwkey->i_defkid = sc->sc_tx_key + 1; |
| 1233 | if (nwkey->i_key[0].i_keydat == NULL) |
| 1234 | return 0; |
| 1235 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 1236 | if (nwkey->i_key[i].i_keydat == NULL) |
| 1237 | continue; |
| 1238 | /* do not show any keys to non-root user */ |
| 1239 | /* XXX-elad: why is this inside a loop? */ |
| 1240 | if ((error = kauth_authorize_network(curlwp->l_cred, |
| 1241 | KAUTH_NETWORK_INTERFACE, |
| 1242 | KAUTH_REQ_NETWORK_INTERFACE_GETPRIV, sc->sc_ic.ic_ifp, |
| 1243 | KAUTH_ARG(SIOCG80211NWKEY), NULL)) != 0) |
| 1244 | break; |
| 1245 | nwkey->i_key[i].i_keylen = sc->sc_wepkeys[i].an_wep_keylen; |
| 1246 | if (nwkey->i_key[i].i_keylen < 0) { |
| 1247 | if (sc->sc_perskeylen[i] == 0) |
| 1248 | nwkey->i_key[i].i_keylen = 0; |
| 1249 | continue; |
| 1250 | } |
| 1251 | if ((error = copyout(sc->sc_wepkeys[i].an_wep_key, |
| 1252 | nwkey->i_key[i].i_keydat, |
| 1253 | sc->sc_wepkeys[i].an_wep_keylen)) != 0) |
| 1254 | break; |
| 1255 | } |
| 1256 | return error; |
| 1257 | } |
| 1258 | |
| 1259 | static int |
| 1260 | an_write_wepkey(struct an_softc *sc, int type, struct an_wepkey *keys, int kid) |
| 1261 | { |
| 1262 | int i, error; |
| 1263 | struct an_rid_wepkey *akey; |
| 1264 | |
| 1265 | error = 0; |
| 1266 | akey = &sc->sc_buf.sc_wepkey; |
| 1267 | memset(akey, 0, sizeof(struct an_rid_wepkey)); |
| 1268 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 1269 | if (keys[i].an_wep_keylen < 0 || |
| 1270 | keys[i].an_wep_keylen > sizeof(akey->an_key)) |
| 1271 | continue; |
| 1272 | akey->an_key_len = htole16(keys[i].an_wep_keylen); |
| 1273 | akey->an_key_index = htole16(i); |
| 1274 | akey->an_mac_addr[0] = 1; /* default mac */ |
| 1275 | memcpy(akey->an_key, keys[i].an_wep_key, keys[i].an_wep_keylen); |
| 1276 | if ((error = an_write_rid(sc, type, akey, sizeof(*akey))) != 0) |
| 1277 | return error; |
| 1278 | } |
| 1279 | if (kid >= 0) { |
| 1280 | akey->an_key_index = htole16(0xffff); |
| 1281 | akey->an_mac_addr[0] = kid; |
| 1282 | akey->an_key_len = htole16(0); |
| 1283 | memset(akey->an_key, 0, sizeof(akey->an_key)); |
| 1284 | error = an_write_rid(sc, type, akey, sizeof(*akey)); |
| 1285 | } |
| 1286 | return error; |
| 1287 | } |
| 1288 | |
| 1289 | #ifdef AN_DEBUG |
| 1290 | static void |
| 1291 | an_dump_pkt(const char *devname, struct mbuf *m) |
| 1292 | { |
| 1293 | int col, col0, i; |
| 1294 | uint8_t *pkt = mtod(m, uint8_t *); |
| 1295 | const char *delim = "" ; |
| 1296 | int delimw = 0; |
| 1297 | |
| 1298 | printf("%s: pkt " , devname); |
| 1299 | col = col0 = strlen(devname) + strlen(": pkt " ); |
| 1300 | for (i = 0; i < m->m_len; i++) { |
| 1301 | printf("%s%02x" , delim, pkt[i]); |
| 1302 | delim = ":" ; |
| 1303 | delimw = 1; |
| 1304 | col += delimw + 2; |
| 1305 | if (col >= 72) { |
| 1306 | printf("\n%*s" , col0, "" ); |
| 1307 | col = col0; |
| 1308 | delim = "" ; |
| 1309 | delimw = 0; |
| 1310 | } |
| 1311 | } |
| 1312 | if (col != 0) |
| 1313 | printf("\n" ); |
| 1314 | } |
| 1315 | #endif /* AN_DEBUG */ |
| 1316 | |
| 1317 | /* |
| 1318 | * Low level functions |
| 1319 | */ |
| 1320 | |
| 1321 | static void |
| 1322 | an_rx_intr(struct an_softc *sc) |
| 1323 | { |
| 1324 | struct ieee80211com *ic = &sc->sc_ic; |
| 1325 | struct ifnet *ifp = &sc->sc_if; |
| 1326 | struct ieee80211_frame_min *wh; |
| 1327 | struct ieee80211_node *ni; |
| 1328 | struct an_rxframe frmhdr; |
| 1329 | struct mbuf *m; |
| 1330 | u_int16_t status; |
| 1331 | int fid, gaplen, len, off; |
| 1332 | uint8_t *gap; |
| 1333 | |
| 1334 | fid = CSR_READ_2(sc, AN_RX_FID); |
| 1335 | |
| 1336 | /* First read in the frame header */ |
| 1337 | if (an_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { |
| 1338 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1339 | ifp->if_ierrors++; |
| 1340 | DPRINTF(("an_rx_intr: read fid %x failed\n" , fid)); |
| 1341 | return; |
| 1342 | } |
| 1343 | |
| 1344 | #ifdef AN_DEBUG |
| 1345 | if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2)) { |
| 1346 | ieee80211_dump_pkt((u_int8_t *)&frmhdr.an_whdr, |
| 1347 | sizeof(struct ieee80211_frame), frmhdr.an_rx_rate, |
| 1348 | frmhdr.an_rx_signal_strength); |
| 1349 | printf(" time 0x%x status 0x%x plen %u chan %u" |
| 1350 | " plcp %02x %02x %02x %02x gap %u\n" , |
| 1351 | le32toh(frmhdr.an_rx_time), le16toh(frmhdr.an_rx_status), |
| 1352 | le16toh(frmhdr.an_rx_payload_len), frmhdr.an_rx_chan, |
| 1353 | frmhdr.an_plcp_hdr[0], frmhdr.an_plcp_hdr[1], |
| 1354 | frmhdr.an_plcp_hdr[2], frmhdr.an_plcp_hdr[3], |
| 1355 | le16toh(frmhdr.an_gaplen)); |
| 1356 | } |
| 1357 | #endif |
| 1358 | |
| 1359 | status = le16toh(frmhdr.an_rx_status); |
| 1360 | if ((status & AN_STAT_ERRSTAT) != 0 && |
| 1361 | ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 1362 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1363 | ifp->if_ierrors++; |
| 1364 | DPRINTF(("an_rx_intr: fid %x status %x\n" , fid, status)); |
| 1365 | return; |
| 1366 | } |
| 1367 | |
| 1368 | /* the payload length field includes a 16-bit "mystery field" */ |
| 1369 | len = le16toh(frmhdr.an_rx_payload_len) - sizeof(uint16_t); |
| 1370 | off = ALIGN(sizeof(struct ieee80211_frame)); |
| 1371 | |
| 1372 | if (off + len > MCLBYTES) { |
| 1373 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 1374 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1375 | ifp->if_ierrors++; |
| 1376 | DPRINTF(("an_rx_intr: oversized packet %d\n" , len)); |
| 1377 | return; |
| 1378 | } |
| 1379 | len = 0; |
| 1380 | } |
| 1381 | |
| 1382 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 1383 | if (m == NULL) { |
| 1384 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1385 | ifp->if_ierrors++; |
| 1386 | DPRINTF(("an_rx_intr: MGET failed\n" )); |
| 1387 | return; |
| 1388 | } |
| 1389 | if (off + len + AN_GAPLEN_MAX > MHLEN) { |
| 1390 | MCLGET(m, M_DONTWAIT); |
| 1391 | if ((m->m_flags & M_EXT) == 0) { |
| 1392 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1393 | m_freem(m); |
| 1394 | ifp->if_ierrors++; |
| 1395 | DPRINTF(("an_rx_intr: MCLGET failed\n" )); |
| 1396 | return; |
| 1397 | } |
| 1398 | } |
| 1399 | m->m_data += off - sizeof(struct ieee80211_frame); |
| 1400 | |
| 1401 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 1402 | gaplen = le16toh(frmhdr.an_gaplen); |
| 1403 | if (gaplen > AN_GAPLEN_MAX) { |
| 1404 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1405 | m_freem(m); |
| 1406 | ifp->if_ierrors++; |
| 1407 | DPRINTF(("%s: gap too long\n" , __func__)); |
| 1408 | return; |
| 1409 | } |
| 1410 | /* |
| 1411 | * We don't need the 16-bit mystery field (payload length?), |
| 1412 | * so read it into the region reserved for the 802.11 header. |
| 1413 | * |
| 1414 | * When Cisco Aironet 350 cards w/ firmware version 5 or |
| 1415 | * greater operate with certain Cisco 350 APs, |
| 1416 | * the "gap" is filled with the SNAP header. Read |
| 1417 | * it in after the 802.11 header. |
| 1418 | */ |
| 1419 | gap = m->m_data + sizeof(struct ieee80211_frame) - |
| 1420 | sizeof(uint16_t); |
| 1421 | an_read_bap(sc, fid, -1, gap, gaplen + sizeof(u_int16_t)); |
| 1422 | #ifdef AN_DEBUG |
| 1423 | if ((ifp->if_flags & (IFF_DEBUG|IFF_LINK2)) == |
| 1424 | (IFF_DEBUG|IFF_LINK2)) { |
| 1425 | int i; |
| 1426 | printf(" gap&len" ); |
| 1427 | for (i = 0; i < gaplen + sizeof(u_int16_t); i++) |
| 1428 | printf(" %02x" , gap[i]); |
| 1429 | printf("\n" ); |
| 1430 | } |
| 1431 | #endif |
| 1432 | } else |
| 1433 | gaplen = 0; |
| 1434 | |
| 1435 | an_read_bap(sc, fid, -1, |
| 1436 | m->m_data + sizeof(struct ieee80211_frame) + gaplen, len); |
| 1437 | m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + gaplen + |
| 1438 | len; |
| 1439 | |
| 1440 | memcpy(m->m_data, &frmhdr.an_whdr, sizeof(struct ieee80211_frame)); |
| 1441 | m_set_rcvif(m, ifp); |
| 1442 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); |
| 1443 | |
| 1444 | if (sc->sc_drvbpf) { |
| 1445 | struct an_rx_radiotap_header *tap = &sc->sc_rxtap; |
| 1446 | |
| 1447 | tap->ar_rate = frmhdr.an_rx_rate; |
| 1448 | tap->ar_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); |
| 1449 | tap->ar_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); |
| 1450 | tap->ar_antsignal = frmhdr.an_rx_signal_strength; |
| 1451 | if ((le16toh(frmhdr.an_rx_status) & AN_STAT_BADCRC) || |
| 1452 | (le16toh(frmhdr.an_rx_status) & AN_STAT_ERRSTAT) || |
| 1453 | (le16toh(frmhdr.an_rx_status) & AN_STAT_UNDECRYPTABLE)) |
| 1454 | tap->ar_flags |= IEEE80211_RADIOTAP_F_BADFCS; |
| 1455 | |
| 1456 | bpf_mtap2(sc->sc_drvbpf, tap, tap->ar_ihdr.it_len, m); |
| 1457 | } |
| 1458 | wh = mtod(m, struct ieee80211_frame_min *); |
| 1459 | if (wh->i_fc[1] & IEEE80211_FC1_WEP) { |
| 1460 | /* |
| 1461 | * WEP is decrypted by hardware. Clear WEP bit |
| 1462 | * header for ieee80211_input(). |
| 1463 | */ |
| 1464 | wh->i_fc[1] &= ~IEEE80211_FC1_WEP; |
| 1465 | } |
| 1466 | |
| 1467 | #ifdef AN_DEBUG |
| 1468 | if (an_debug > 1) |
| 1469 | an_dump_pkt(device_xname(sc->sc_dev), m); |
| 1470 | #endif /* AN_DEBUG */ |
| 1471 | |
| 1472 | ni = ieee80211_find_rxnode(ic, wh); |
| 1473 | ieee80211_input(ic, m, ni, frmhdr.an_rx_signal_strength, |
| 1474 | le32toh(frmhdr.an_rx_time)); |
| 1475 | ieee80211_free_node(ni); |
| 1476 | } |
| 1477 | |
| 1478 | static void |
| 1479 | an_tx_intr(struct an_softc *sc, int status) |
| 1480 | { |
| 1481 | struct ifnet *ifp = &sc->sc_if; |
| 1482 | int cur, fid; |
| 1483 | |
| 1484 | sc->sc_tx_timer = 0; |
| 1485 | ifp->if_flags &= ~IFF_OACTIVE; |
| 1486 | |
| 1487 | fid = CSR_READ_2(sc, AN_TX_CMP_FID); |
| 1488 | CSR_WRITE_2(sc, AN_EVENT_ACK, status & (AN_EV_TX | AN_EV_TX_EXC)); |
| 1489 | |
| 1490 | if (status & AN_EV_TX_EXC) |
| 1491 | ifp->if_oerrors++; |
| 1492 | else |
| 1493 | ifp->if_opackets++; |
| 1494 | |
| 1495 | cur = sc->sc_txcur; |
| 1496 | if (sc->sc_txd[cur].d_fid == fid) { |
| 1497 | sc->sc_txd[cur].d_inuse = 0; |
| 1498 | DPRINTF2(("an_tx_intr: sent %x/%d\n" , fid, cur)); |
| 1499 | AN_INC(cur, AN_TX_RING_CNT); |
| 1500 | sc->sc_txcur = cur; |
| 1501 | } else { |
| 1502 | for (cur = 0; cur < AN_TX_RING_CNT; cur++) { |
| 1503 | if (fid == sc->sc_txd[cur].d_fid) { |
| 1504 | sc->sc_txd[cur].d_inuse = 0; |
| 1505 | break; |
| 1506 | } |
| 1507 | } |
| 1508 | if (ifp->if_flags & IFF_DEBUG) |
| 1509 | printf("%s: tx mismatch: " |
| 1510 | "expected %x(%d), actual %x(%d)\n" , |
| 1511 | device_xname(sc->sc_dev), |
| 1512 | sc->sc_txd[sc->sc_txcur].d_fid, sc->sc_txcur, |
| 1513 | fid, cur); |
| 1514 | } |
| 1515 | |
| 1516 | return; |
| 1517 | } |
| 1518 | |
| 1519 | static void |
| 1520 | an_linkstat_intr(struct an_softc *sc) |
| 1521 | { |
| 1522 | struct ieee80211com *ic = &sc->sc_ic; |
| 1523 | u_int16_t status; |
| 1524 | |
| 1525 | status = CSR_READ_2(sc, AN_LINKSTAT); |
| 1526 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_LINKSTAT); |
| 1527 | DPRINTF(("an_linkstat_intr: status 0x%x\n" , status)); |
| 1528 | |
| 1529 | if (status == AN_LINKSTAT_ASSOCIATED) { |
| 1530 | if (ic->ic_state != IEEE80211_S_RUN || |
| 1531 | ic->ic_opmode == IEEE80211_M_IBSS) |
| 1532 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 1533 | } else { |
| 1534 | if (ic->ic_opmode == IEEE80211_M_STA) |
| 1535 | ieee80211_new_state(ic, IEEE80211_S_INIT, -1); |
| 1536 | } |
| 1537 | } |
| 1538 | |
| 1539 | /* Must be called at proper protection level! */ |
| 1540 | static int |
| 1541 | an_cmd(struct an_softc *sc, int cmd, int val) |
| 1542 | { |
| 1543 | int i, status; |
| 1544 | |
| 1545 | /* make sure that previous command completed */ |
| 1546 | if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) { |
| 1547 | if (sc->sc_if.if_flags & IFF_DEBUG) |
| 1548 | printf("%s: command 0x%x busy\n" , device_xname(sc->sc_dev), |
| 1549 | CSR_READ_2(sc, AN_COMMAND)); |
| 1550 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); |
| 1551 | } |
| 1552 | |
| 1553 | CSR_WRITE_2(sc, AN_PARAM0, val); |
| 1554 | CSR_WRITE_2(sc, AN_PARAM1, 0); |
| 1555 | CSR_WRITE_2(sc, AN_PARAM2, 0); |
| 1556 | CSR_WRITE_2(sc, AN_COMMAND, cmd); |
| 1557 | |
| 1558 | if (cmd == AN_CMD_FW_RESTART) { |
| 1559 | /* XXX: should sleep here */ |
| 1560 | DELAY(100*1000); |
| 1561 | } |
| 1562 | |
| 1563 | for (i = 0; i < AN_TIMEOUT; i++) { |
| 1564 | if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) |
| 1565 | break; |
| 1566 | DELAY(10); |
| 1567 | } |
| 1568 | |
| 1569 | status = CSR_READ_2(sc, AN_STATUS); |
| 1570 | |
| 1571 | /* clear stuck command busy if necessary */ |
| 1572 | if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) |
| 1573 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); |
| 1574 | |
| 1575 | /* Ack the command */ |
| 1576 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); |
| 1577 | |
| 1578 | if (i == AN_TIMEOUT) { |
| 1579 | if (sc->sc_if.if_flags & IFF_DEBUG) |
| 1580 | printf("%s: command 0x%x param 0x%x timeout\n" , |
| 1581 | device_xname(sc->sc_dev), cmd, val); |
| 1582 | return ETIMEDOUT; |
| 1583 | } |
| 1584 | if (status & AN_STAT_CMD_RESULT) { |
| 1585 | if (sc->sc_if.if_flags & IFF_DEBUG) |
| 1586 | printf("%s: command 0x%x param 0x%x status 0x%x " |
| 1587 | "resp 0x%x 0x%x 0x%x\n" , |
| 1588 | device_xname(sc->sc_dev), cmd, val, status, |
| 1589 | CSR_READ_2(sc, AN_RESP0), CSR_READ_2(sc, AN_RESP1), |
| 1590 | CSR_READ_2(sc, AN_RESP2)); |
| 1591 | return EIO; |
| 1592 | } |
| 1593 | |
| 1594 | return 0; |
| 1595 | } |
| 1596 | |
| 1597 | |
| 1598 | /* |
| 1599 | * Wait for firmware come up after power enabled. |
| 1600 | */ |
| 1601 | static void |
| 1602 | an_wait(struct an_softc *sc) |
| 1603 | { |
| 1604 | int i; |
| 1605 | |
| 1606 | CSR_WRITE_2(sc, AN_COMMAND, AN_CMD_NOOP2); |
| 1607 | for (i = 0; i < 3*hz; i++) { |
| 1608 | if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) |
| 1609 | break; |
| 1610 | (void)tsleep(sc, PWAIT, "anatch" , 1); |
| 1611 | } |
| 1612 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); |
| 1613 | } |
| 1614 | |
| 1615 | static int |
| 1616 | an_seek_bap(struct an_softc *sc, int id, int off) |
| 1617 | { |
| 1618 | int i, status; |
| 1619 | |
| 1620 | CSR_WRITE_2(sc, AN_SEL0, id); |
| 1621 | CSR_WRITE_2(sc, AN_OFF0, off); |
| 1622 | |
| 1623 | for (i = 0; ; i++) { |
| 1624 | status = CSR_READ_2(sc, AN_OFF0); |
| 1625 | if ((status & AN_OFF_BUSY) == 0) |
| 1626 | break; |
| 1627 | if (i == AN_TIMEOUT) { |
| 1628 | printf("%s: timeout in an_seek_bap to 0x%x/0x%x\n" , |
| 1629 | device_xname(sc->sc_dev), id, off); |
| 1630 | sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ |
| 1631 | return ETIMEDOUT; |
| 1632 | } |
| 1633 | DELAY(10); |
| 1634 | } |
| 1635 | if (status & AN_OFF_ERR) { |
| 1636 | aprint_error_dev(sc->sc_dev, "failed in an_seek_bap to 0x%x/0x%x\n" , |
| 1637 | id, off); |
| 1638 | sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ |
| 1639 | return EIO; |
| 1640 | } |
| 1641 | sc->sc_bap_id = id; |
| 1642 | sc->sc_bap_off = off; |
| 1643 | return 0; |
| 1644 | } |
| 1645 | |
| 1646 | static int |
| 1647 | an_read_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) |
| 1648 | { |
| 1649 | int error, cnt; |
| 1650 | |
| 1651 | if (buflen == 0) |
| 1652 | return 0; |
| 1653 | if (off == -1) |
| 1654 | off = sc->sc_bap_off; |
| 1655 | if (id != sc->sc_bap_id || off != sc->sc_bap_off) { |
| 1656 | if ((error = an_seek_bap(sc, id, off)) != 0) |
| 1657 | return EIO; |
| 1658 | } |
| 1659 | |
| 1660 | cnt = (buflen + 1) / 2; |
| 1661 | CSR_READ_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); |
| 1662 | sc->sc_bap_off += cnt * 2; |
| 1663 | return 0; |
| 1664 | } |
| 1665 | |
| 1666 | static int |
| 1667 | an_write_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) |
| 1668 | { |
| 1669 | int error, cnt; |
| 1670 | |
| 1671 | if (buflen == 0) |
| 1672 | return 0; |
| 1673 | if (off == -1) |
| 1674 | off = sc->sc_bap_off; |
| 1675 | if (id != sc->sc_bap_id || off != sc->sc_bap_off) { |
| 1676 | if ((error = an_seek_bap(sc, id, off)) != 0) |
| 1677 | return EIO; |
| 1678 | } |
| 1679 | |
| 1680 | cnt = (buflen + 1) / 2; |
| 1681 | CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); |
| 1682 | sc->sc_bap_off += cnt * 2; |
| 1683 | return 0; |
| 1684 | } |
| 1685 | |
| 1686 | static int |
| 1687 | an_mwrite_bap(struct an_softc *sc, int id, int off, struct mbuf *m, int totlen) |
| 1688 | { |
| 1689 | int error, len, cnt; |
| 1690 | |
| 1691 | if (off == -1) |
| 1692 | off = sc->sc_bap_off; |
| 1693 | if (id != sc->sc_bap_id || off != sc->sc_bap_off) { |
| 1694 | if ((error = an_seek_bap(sc, id, off)) != 0) |
| 1695 | return EIO; |
| 1696 | } |
| 1697 | |
| 1698 | for (len = 0; m != NULL; m = m->m_next) { |
| 1699 | if (m->m_len == 0) |
| 1700 | continue; |
| 1701 | len = min(m->m_len, totlen); |
| 1702 | |
| 1703 | if ((mtod(m, u_long) & 0x1) || (len & 0x1)) { |
| 1704 | m_copydata(m, 0, totlen, (void *)&sc->sc_buf.sc_txbuf); |
| 1705 | cnt = (totlen + 1) / 2; |
| 1706 | CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, |
| 1707 | sc->sc_buf.sc_val, cnt); |
| 1708 | off += cnt * 2; |
| 1709 | break; |
| 1710 | } |
| 1711 | cnt = len / 2; |
| 1712 | CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, mtod(m, u_int16_t *), |
| 1713 | cnt); |
| 1714 | off += len; |
| 1715 | totlen -= len; |
| 1716 | } |
| 1717 | sc->sc_bap_off = off; |
| 1718 | return 0; |
| 1719 | } |
| 1720 | |
| 1721 | static int |
| 1722 | an_alloc_fid(struct an_softc *sc, int len, int *idp) |
| 1723 | { |
| 1724 | int i; |
| 1725 | |
| 1726 | if (an_cmd(sc, AN_CMD_ALLOC_MEM, len)) { |
| 1727 | aprint_error_dev(sc->sc_dev, "failed to allocate %d bytes on NIC\n" , |
| 1728 | len); |
| 1729 | return ENOMEM; |
| 1730 | } |
| 1731 | |
| 1732 | for (i = 0; i < AN_TIMEOUT; i++) { |
| 1733 | if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_ALLOC) |
| 1734 | break; |
| 1735 | if (i == AN_TIMEOUT) { |
| 1736 | printf("%s: timeout in alloc\n" , device_xname(sc->sc_dev)); |
| 1737 | return ETIMEDOUT; |
| 1738 | } |
| 1739 | DELAY(10); |
| 1740 | } |
| 1741 | |
| 1742 | *idp = CSR_READ_2(sc, AN_ALLOC_FID); |
| 1743 | CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_ALLOC); |
| 1744 | return 0; |
| 1745 | } |
| 1746 | |
| 1747 | static int |
| 1748 | an_read_rid(struct an_softc *sc, int rid, void *buf, int *buflenp) |
| 1749 | { |
| 1750 | int error; |
| 1751 | u_int16_t len; |
| 1752 | |
| 1753 | /* Tell the NIC to enter record read mode. */ |
| 1754 | error = an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_READ, rid); |
| 1755 | if (error) |
| 1756 | return error; |
| 1757 | |
| 1758 | /* length in byte, including length itself */ |
| 1759 | error = an_read_bap(sc, rid, 0, &len, sizeof(len)); |
| 1760 | if (error) |
| 1761 | return error; |
| 1762 | |
| 1763 | len = le16toh(len) - 2; |
| 1764 | if (*buflenp < len) { |
| 1765 | aprint_error_dev(sc->sc_dev, "record buffer is too small, " |
| 1766 | "rid=%x, size=%d, len=%d\n" , |
| 1767 | rid, *buflenp, len); |
| 1768 | return ENOSPC; |
| 1769 | } |
| 1770 | *buflenp = len; |
| 1771 | return an_read_bap(sc, rid, sizeof(len), buf, len); |
| 1772 | } |
| 1773 | |
| 1774 | static int |
| 1775 | an_write_rid(struct an_softc *sc, int rid, void *buf, int buflen) |
| 1776 | { |
| 1777 | int error; |
| 1778 | u_int16_t len; |
| 1779 | |
| 1780 | /* length in byte, including length itself */ |
| 1781 | len = htole16(buflen + 2); |
| 1782 | |
| 1783 | error = an_write_bap(sc, rid, 0, &len, sizeof(len)); |
| 1784 | if (error) |
| 1785 | return error; |
| 1786 | error = an_write_bap(sc, rid, sizeof(len), buf, buflen); |
| 1787 | if (error) |
| 1788 | return error; |
| 1789 | |
| 1790 | return an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_WRITE, rid); |
| 1791 | } |
| 1792 | |
| 1793 | static int |
| 1794 | an_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) |
| 1795 | { |
| 1796 | struct an_softc *sc = (struct an_softc *)ic->ic_ifp->if_softc; |
| 1797 | struct ieee80211_node *ni = ic->ic_bss; |
| 1798 | int buflen; |
| 1799 | |
| 1800 | DPRINTF(("an_newstate: %s -> %s\n" , ieee80211_state_name[ic->ic_state], |
| 1801 | ieee80211_state_name[nstate])); |
| 1802 | |
| 1803 | switch (nstate) { |
| 1804 | case IEEE80211_S_INIT: |
| 1805 | ic->ic_flags &= ~IEEE80211_F_IBSSON; |
| 1806 | return (*sc->sc_newstate)(ic, nstate, arg); |
| 1807 | |
| 1808 | case IEEE80211_S_SCAN: |
| 1809 | case IEEE80211_S_AUTH: |
| 1810 | case IEEE80211_S_ASSOC: |
| 1811 | ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */ |
| 1812 | return 0; |
| 1813 | |
| 1814 | case IEEE80211_S_RUN: |
| 1815 | buflen = sizeof(sc->sc_buf); |
| 1816 | an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen); |
| 1817 | IEEE80211_ADDR_COPY(ni->ni_bssid, |
| 1818 | sc->sc_buf.sc_status.an_cur_bssid); |
| 1819 | IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid); |
| 1820 | ni->ni_chan = &ic->ic_channels[ |
| 1821 | le16toh(sc->sc_buf.sc_status.an_cur_channel)]; |
| 1822 | ni->ni_esslen = le16toh(sc->sc_buf.sc_status.an_ssidlen); |
| 1823 | if (ni->ni_esslen > IEEE80211_NWID_LEN) |
| 1824 | ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ |
| 1825 | memcpy(ni->ni_essid, sc->sc_buf.sc_status.an_ssid, |
| 1826 | ni->ni_esslen); |
| 1827 | ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B]; /*XXX*/ |
| 1828 | if (ic->ic_ifp->if_flags & IFF_DEBUG) { |
| 1829 | printf("%s: " , device_xname(sc->sc_dev)); |
| 1830 | if (ic->ic_opmode == IEEE80211_M_STA) |
| 1831 | printf("associated " ); |
| 1832 | else |
| 1833 | printf("synchronized " ); |
| 1834 | printf("with %s ssid " , ether_sprintf(ni->ni_bssid)); |
| 1835 | ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); |
| 1836 | printf(" channel %u start %uMb\n" , |
| 1837 | le16toh(sc->sc_buf.sc_status.an_cur_channel), |
| 1838 | le16toh(sc->sc_buf.sc_status.an_current_tx_rate)/2); |
| 1839 | } |
| 1840 | break; |
| 1841 | |
| 1842 | default: |
| 1843 | break; |
| 1844 | } |
| 1845 | return (*sc->sc_newstate)(ic, nstate, arg); |
| 1846 | } |
| 1847 | |