ieee80211_freebsd.c revision 178354
1138568Ssam/*- 2178354Ssam * Copyright (c) 2003-2008 Sam Leffler, Errno Consulting 3138568Ssam * All rights reserved. 4138568Ssam * 5138568Ssam * Redistribution and use in source and binary forms, with or without 6138568Ssam * modification, are permitted provided that the following conditions 7138568Ssam * are met: 8138568Ssam * 1. Redistributions of source code must retain the above copyright 9138568Ssam * notice, this list of conditions and the following disclaimer. 10138568Ssam * 2. Redistributions in binary form must reproduce the above copyright 11138568Ssam * notice, this list of conditions and the following disclaimer in the 12138568Ssam * documentation and/or other materials provided with the distribution. 13138568Ssam * 14138568Ssam * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15138568Ssam * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16138568Ssam * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17138568Ssam * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18138568Ssam * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19138568Ssam * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20138568Ssam * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21138568Ssam * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22138568Ssam * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23138568Ssam * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24138568Ssam */ 25138568Ssam 26138568Ssam#include <sys/cdefs.h> 27138568Ssam__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_freebsd.c 178354 2008-04-20 20:35:46Z sam $"); 28138568Ssam 29138568Ssam/* 30138568Ssam * IEEE 802.11 support (FreeBSD-specific code) 31138568Ssam */ 32178354Ssam#include "opt_wlan.h" 33178354Ssam 34138568Ssam#include <sys/param.h> 35138568Ssam#include <sys/kernel.h> 36138568Ssam#include <sys/systm.h> 37138568Ssam#include <sys/linker.h> 38138568Ssam#include <sys/mbuf.h> 39138568Ssam#include <sys/module.h> 40138568Ssam#include <sys/proc.h> 41138568Ssam#include <sys/sysctl.h> 42138568Ssam 43138568Ssam#include <sys/socket.h> 44138568Ssam 45138568Ssam#include <net/if.h> 46178354Ssam#include <net/if_clone.h> 47138568Ssam#include <net/if_media.h> 48178354Ssam#include <net/if_types.h> 49138568Ssam#include <net/ethernet.h> 50138568Ssam#include <net/route.h> 51138568Ssam 52138568Ssam#include <net80211/ieee80211_var.h> 53138568Ssam 54138568SsamSYSCTL_NODE(_net, OID_AUTO, wlan, CTLFLAG_RD, 0, "IEEE 80211 parameters"); 55138568Ssam 56138568Ssam#ifdef IEEE80211_DEBUG 57138568Ssamint ieee80211_debug = 0; 58138568SsamSYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug, 59138568Ssam 0, "debugging printfs"); 60138568Ssam#endif 61173273Ssamextern int ieee80211_recv_bar_ena; 62173273SsamSYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena, 63173273Ssam 0, "BAR frame processing (ena/dis)"); 64178354Ssamextern int ieee80211_nol_timeout; 65178354SsamSYSCTL_INT(_net_wlan, OID_AUTO, nol_timeout, CTLFLAG_RW, 66178354Ssam &ieee80211_nol_timeout, 0, "NOL timeout (secs)"); 67178354Ssamextern int ieee80211_cac_timeout; 68178354SsamSYSCTL_INT(_net_wlan, OID_AUTO, cac_timeout, CTLFLAG_RW, 69178354Ssam &ieee80211_cac_timeout, 0, "CAC timeout (secs)"); 70138568Ssam 71178354SsamMALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state"); 72178354Ssam 73178354Ssam/* 74178354Ssam * Allocate/free com structure in conjunction with ifnet; 75178354Ssam * these routines are registered with if_register_com_alloc 76178354Ssam * below and are called automatically by the ifnet code 77178354Ssam * when the ifnet of the parent device is created. 78178354Ssam */ 79178354Ssamstatic void * 80178354Ssamwlan_alloc(u_char type, struct ifnet *ifp) 81178354Ssam{ 82178354Ssam struct ieee80211com *ic; 83178354Ssam 84178354Ssam ic = malloc(sizeof(struct ieee80211com), M_80211_COM, M_WAITOK|M_ZERO); 85178354Ssam ic->ic_ifp = ifp; 86178354Ssam 87178354Ssam return (ic); 88178354Ssam} 89178354Ssam 90178354Ssamstatic void 91178354Ssamwlan_free(void *ic, u_char type) 92178354Ssam{ 93178354Ssam free(ic, M_80211_COM); 94178354Ssam} 95178354Ssam 96138568Ssamstatic int 97178354Ssamwlan_clone_create(struct if_clone *ifc, int unit, caddr_t params) 98173273Ssam{ 99178354Ssam struct ieee80211_clone_params cp; 100178354Ssam struct ieee80211vap *vap; 101178354Ssam struct ieee80211com *ic; 102178354Ssam struct ifnet *ifp; 103173273Ssam int error; 104173273Ssam 105178354Ssam error = copyin(params, &cp, sizeof(cp)); 106178354Ssam if (error) 107178354Ssam return error; 108178354Ssam ifp = ifunit(cp.icp_parent); 109178354Ssam if (ifp == NULL) 110178354Ssam return ENXIO; 111178354Ssam if (ifp->if_type != IFT_IEEE80211) { 112178354Ssam if_printf(ifp, "%s: reject, not an 802.11 device\n", __func__); 113178354Ssam return EINVAL; 114178354Ssam } 115178354Ssam ic = ifp->if_l2com; 116178354Ssam vap = ic->ic_vap_create(ic, ifc->ifc_name, unit, 117178354Ssam cp.icp_opmode, cp.icp_flags, cp.icp_bssid, 118178354Ssam cp.icp_flags & IEEE80211_CLONE_MACADDR ? 119178354Ssam cp.icp_macaddr : ic->ic_myaddr); 120178354Ssam return (vap == NULL ? EIO : 0); 121178354Ssam} 122178354Ssam 123178354Ssamstatic void 124178354Ssamwlan_clone_destroy(struct ifnet *ifp) 125178354Ssam{ 126178354Ssam struct ieee80211vap *vap = ifp->if_softc; 127178354Ssam struct ieee80211com *ic = vap->iv_ic; 128178354Ssam 129178354Ssam ic->ic_vap_delete(vap); 130178354Ssam} 131178354SsamIFC_SIMPLE_DECLARE(wlan, 0); 132178354Ssam 133178354Ssamvoid 134178354Ssamieee80211_vap_destroy(struct ieee80211vap *vap) 135178354Ssam{ 136178354Ssam ifc_simple_destroy(&wlan_cloner, vap->iv_ifp); 137178354Ssam} 138178354Ssam 139178354Ssamstatic int 140178354Ssamieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS) 141178354Ssam{ 142178354Ssam int msecs = ticks_to_msecs(*(int *)arg1); 143178354Ssam int error, t; 144178354Ssam 145178354Ssam error = sysctl_handle_int(oidp, &msecs, 0, req); 146173273Ssam if (error || !req->newptr) 147173273Ssam return error; 148178354Ssam t = msecs_to_ticks(msecs); 149178354Ssam *(int *)arg1 = (t < 1) ? 1 : t; 150173273Ssam return 0; 151173273Ssam} 152178354Ssam 153178354Ssam#ifdef IEEE80211_AMPDU_AGE 154178354Ssamextern int ieee80211_ampdu_age; 155178354SsamSYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLFLAG_RW, 156178354Ssam &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I", 157178354Ssam "AMPDU max reorder age (ms)"); 158173273Ssam#endif 159178354Ssamextern int ieee80211_addba_timeout; 160178354SsamSYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLFLAG_RW, 161178354Ssam &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I", 162178354Ssam "ADDBA request timeout (ms)"); 163178354Ssamextern int ieee80211_addba_backoff; 164178354SsamSYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLFLAG_RW, 165178354Ssam &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I", 166178354Ssam "ADDBA request backoff (ms)"); 167178354Ssamextern int ieee80211_addba_maxtries; 168178354SsamSYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW, 169178354Ssam &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff"); 170173273Ssam 171173273Ssamstatic int 172138568Ssamieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS) 173138568Ssam{ 174138568Ssam int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT; 175138568Ssam int error; 176138568Ssam 177138568Ssam error = sysctl_handle_int(oidp, &inact, 0, req); 178138568Ssam if (error || !req->newptr) 179138568Ssam return error; 180138568Ssam *(int *)arg1 = inact / IEEE80211_INACT_WAIT; 181138568Ssam return 0; 182138568Ssam} 183138568Ssam 184138568Ssamstatic int 185138568Ssamieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS) 186138568Ssam{ 187138568Ssam struct ieee80211com *ic = arg1; 188138568Ssam const char *name = ic->ic_ifp->if_xname; 189138568Ssam 190138568Ssam return SYSCTL_OUT(req, name, strlen(name)); 191138568Ssam} 192138568Ssam 193138568Ssamvoid 194138568Ssamieee80211_sysctl_attach(struct ieee80211com *ic) 195138568Ssam{ 196178354Ssam} 197178354Ssam 198178354Ssamvoid 199178354Ssamieee80211_sysctl_detach(struct ieee80211com *ic) 200178354Ssam{ 201178354Ssam} 202178354Ssam 203178354Ssamvoid 204178354Ssamieee80211_sysctl_vattach(struct ieee80211vap *vap) 205178354Ssam{ 206178354Ssam struct ifnet *ifp = vap->iv_ifp; 207138568Ssam struct sysctl_ctx_list *ctx; 208138568Ssam struct sysctl_oid *oid; 209138568Ssam char num[14]; /* sufficient for 32 bits */ 210138568Ssam 211138568Ssam MALLOC(ctx, struct sysctl_ctx_list *, sizeof(struct sysctl_ctx_list), 212138568Ssam M_DEVBUF, M_NOWAIT | M_ZERO); 213138568Ssam if (ctx == NULL) { 214178354Ssam if_printf(ifp, "%s: cannot allocate sysctl context!\n", 215138568Ssam __func__); 216138568Ssam return; 217138568Ssam } 218138568Ssam sysctl_ctx_init(ctx); 219178354Ssam snprintf(num, sizeof(num), "%u", ifp->if_dunit); 220138568Ssam oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan), 221138568Ssam OID_AUTO, num, CTLFLAG_RD, NULL, ""); 222138568Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 223178354Ssam "%parent", CTLFLAG_RD, vap->iv_ic, 0, 224178354Ssam ieee80211_sysctl_parent, "A", "parent device"); 225178354Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 226178354Ssam "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0, 227178354Ssam "driver capabilities"); 228138568Ssam#ifdef IEEE80211_DEBUG 229178354Ssam vap->iv_debug = ieee80211_debug; 230138568Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 231178354Ssam "debug", CTLFLAG_RW, &vap->iv_debug, 0, 232138568Ssam "control debugging printfs"); 233138568Ssam#endif 234178354Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 235178354Ssam "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0, 236178354Ssam "consecutive beacon misses before scanning"); 237138568Ssam /* XXX inherit from tunables */ 238138568Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 239178354Ssam "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0, 240138568Ssam ieee80211_sysctl_inact, "I", 241138568Ssam "station inactivity timeout (sec)"); 242138568Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 243178354Ssam "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0, 244138568Ssam ieee80211_sysctl_inact, "I", 245138568Ssam "station inactivity probe timeout (sec)"); 246138568Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 247178354Ssam "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0, 248138568Ssam ieee80211_sysctl_inact, "I", 249138568Ssam "station authentication timeout (sec)"); 250138568Ssam SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 251178354Ssam "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0, 252138568Ssam ieee80211_sysctl_inact, "I", 253138568Ssam "station initial state timeout (sec)"); 254178354Ssam if (vap->iv_htcaps & IEEE80211_HTC_HT) { 255178354Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 256178354Ssam "ampdu_mintraffic_bk", CTLFLAG_RW, 257178354Ssam &vap->iv_ampdu_mintraffic[WME_AC_BK], 0, 258178354Ssam "BK traffic tx aggr threshold (pps)"); 259178354Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 260178354Ssam "ampdu_mintraffic_be", CTLFLAG_RW, 261178354Ssam &vap->iv_ampdu_mintraffic[WME_AC_BE], 0, 262178354Ssam "BE traffic tx aggr threshold (pps)"); 263178354Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 264178354Ssam "ampdu_mintraffic_vo", CTLFLAG_RW, 265178354Ssam &vap->iv_ampdu_mintraffic[WME_AC_VO], 0, 266178354Ssam "VO traffic tx aggr threshold (pps)"); 267178354Ssam SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 268178354Ssam "ampdu_mintraffic_vi", CTLFLAG_RW, 269178354Ssam &vap->iv_ampdu_mintraffic[WME_AC_VI], 0, 270178354Ssam "VI traffic tx aggr threshold (pps)"); 271178354Ssam } 272178354Ssam vap->iv_sysctl = ctx; 273178354Ssam vap->iv_oid = oid; 274138568Ssam} 275138568Ssam 276138568Ssamvoid 277178354Ssamieee80211_sysctl_vdetach(struct ieee80211vap *vap) 278138568Ssam{ 279138568Ssam 280178354Ssam if (vap->iv_sysctl != NULL) { 281178354Ssam sysctl_ctx_free(vap->iv_sysctl); 282178354Ssam FREE(vap->iv_sysctl, M_DEVBUF); 283178354Ssam vap->iv_sysctl = NULL; 284138568Ssam } 285138568Ssam} 286138568Ssam 287138568Ssamint 288138568Ssamieee80211_node_dectestref(struct ieee80211_node *ni) 289138568Ssam{ 290138568Ssam /* XXX need equivalent of atomic_dec_and_test */ 291138568Ssam atomic_subtract_int(&ni->ni_refcnt, 1); 292138568Ssam return atomic_cmpset_int(&ni->ni_refcnt, 0, 1); 293138568Ssam} 294138568Ssam 295165894Ssamvoid 296165894Ssamieee80211_drain_ifq(struct ifqueue *ifq) 297165894Ssam{ 298165894Ssam struct ieee80211_node *ni; 299165894Ssam struct mbuf *m; 300165894Ssam 301165894Ssam for (;;) { 302165894Ssam IF_DEQUEUE(ifq, m); 303165894Ssam if (m == NULL) 304165894Ssam break; 305165894Ssam 306165894Ssam ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 307165894Ssam KASSERT(ni != NULL, ("frame w/o node")); 308165894Ssam ieee80211_free_node(ni); 309165894Ssam m->m_pkthdr.rcvif = NULL; 310165894Ssam 311165894Ssam m_freem(m); 312165894Ssam } 313165894Ssam} 314165894Ssam 315178354Ssamvoid 316178354Ssamieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap) 317178354Ssam{ 318178354Ssam struct ieee80211_node *ni; 319178354Ssam struct mbuf *m, **mprev; 320178354Ssam 321178354Ssam IF_LOCK(ifq); 322178354Ssam mprev = &ifq->ifq_head; 323178354Ssam while ((m = *mprev) != NULL) { 324178354Ssam ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 325178354Ssam if (ni != NULL && ni->ni_vap == vap) { 326178354Ssam *mprev = m->m_nextpkt; /* remove from list */ 327178354Ssam ifq->ifq_len--; 328178354Ssam 329178354Ssam m_freem(m); 330178354Ssam ieee80211_free_node(ni); /* reclaim ref */ 331178354Ssam } else 332178354Ssam mprev = &m->m_nextpkt; 333178354Ssam } 334178354Ssam /* recalculate tail ptr */ 335178354Ssam m = ifq->ifq_head; 336178354Ssam for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt) 337178354Ssam ; 338178354Ssam ifq->ifq_tail = m; 339178354Ssam IF_UNLOCK(ifq); 340178354Ssam} 341178354Ssam 342138568Ssam/* 343170530Ssam * As above, for mbufs allocated with m_gethdr/MGETHDR 344170530Ssam * or initialized by M_COPY_PKTHDR. 345170530Ssam */ 346170530Ssam#define MC_ALIGN(m, len) \ 347170530Ssamdo { \ 348170530Ssam (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \ 349170530Ssam} while (/* CONSTCOND */ 0) 350170530Ssam 351170530Ssam/* 352138568Ssam * Allocate and setup a management frame of the specified 353138568Ssam * size. We return the mbuf and a pointer to the start 354138568Ssam * of the contiguous data area that's been reserved based 355138568Ssam * on the packet length. The data area is forced to 32-bit 356138568Ssam * alignment and the buffer length to a multiple of 4 bytes. 357138568Ssam * This is done mainly so beacon frames (that require this) 358138568Ssam * can use this interface too. 359138568Ssam */ 360138568Ssamstruct mbuf * 361170530Ssamieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen) 362138568Ssam{ 363138568Ssam struct mbuf *m; 364138568Ssam u_int len; 365138568Ssam 366138568Ssam /* 367138568Ssam * NB: we know the mbuf routines will align the data area 368138568Ssam * so we don't need to do anything special. 369138568Ssam */ 370170530Ssam len = roundup2(headroom + pktlen, 4); 371138568Ssam KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len)); 372138568Ssam if (len < MINCLSIZE) { 373151967Sandre m = m_gethdr(M_NOWAIT, MT_DATA); 374138568Ssam /* 375138568Ssam * Align the data in case additional headers are added. 376138568Ssam * This should only happen when a WEP header is added 377138568Ssam * which only happens for shared key authentication mgt 378138568Ssam * frames which all fit in MHLEN. 379138568Ssam */ 380138568Ssam if (m != NULL) 381138568Ssam MH_ALIGN(m, len); 382170530Ssam } else { 383151967Sandre m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 384170530Ssam if (m != NULL) 385170530Ssam MC_ALIGN(m, len); 386170530Ssam } 387138568Ssam if (m != NULL) { 388171984Ssephe m->m_data += headroom; 389138568Ssam *frm = m->m_data; 390138568Ssam } 391138568Ssam return m; 392138568Ssam} 393138568Ssam 394170530Ssamint 395170530Ssamieee80211_add_callback(struct mbuf *m, 396170530Ssam void (*func)(struct ieee80211_node *, void *, int), void *arg) 397170530Ssam{ 398170530Ssam struct m_tag *mtag; 399170530Ssam struct ieee80211_cb *cb; 400170530Ssam 401170530Ssam mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, 402170530Ssam sizeof(struct ieee80211_cb), M_NOWAIT); 403170530Ssam if (mtag == NULL) 404170530Ssam return 0; 405170530Ssam 406170530Ssam cb = (struct ieee80211_cb *)(mtag+1); 407170530Ssam cb->func = func; 408170530Ssam cb->arg = arg; 409170530Ssam m_tag_prepend(m, mtag); 410170530Ssam m->m_flags |= M_TXCB; 411170530Ssam return 1; 412170530Ssam} 413170530Ssam 414170530Ssamvoid 415170530Ssamieee80211_process_callback(struct ieee80211_node *ni, 416170530Ssam struct mbuf *m, int status) 417170530Ssam{ 418170530Ssam struct m_tag *mtag; 419170530Ssam 420170530Ssam mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL); 421170530Ssam if (mtag != NULL) { 422170530Ssam struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1); 423170530Ssam cb->func(ni, cb->arg, status); 424170530Ssam } 425170530Ssam} 426170530Ssam 427138568Ssam#include <sys/libkern.h> 428138568Ssam 429138568Ssamvoid 430138568Ssamget_random_bytes(void *p, size_t n) 431138568Ssam{ 432170530Ssam uint8_t *dp = p; 433138568Ssam 434138568Ssam while (n > 0) { 435170530Ssam uint32_t v = arc4random(); 436170530Ssam size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n; 437170530Ssam bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n); 438170530Ssam dp += sizeof(uint32_t), n -= nb; 439138568Ssam } 440138568Ssam} 441138568Ssam 442178354Ssam/* 443178354Ssam * Helper function for events that pass just a single mac address. 444178354Ssam */ 445178354Ssamstatic void 446178354Ssamnotify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN]) 447138568Ssam{ 448138568Ssam struct ieee80211_join_event iev; 449138568Ssam 450144302Ssam memset(&iev, 0, sizeof(iev)); 451178354Ssam IEEE80211_ADDR_COPY(iev.iev_addr, mac); 452178354Ssam rt_ieee80211msg(ifp, op, &iev, sizeof(iev)); 453178354Ssam} 454178354Ssam 455178354Ssamvoid 456178354Ssamieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc) 457178354Ssam{ 458178354Ssam struct ieee80211vap *vap = ni->ni_vap; 459178354Ssam struct ifnet *ifp = vap->iv_ifp; 460178354Ssam 461178354Ssam IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join", 462178354Ssam (ni == vap->iv_bss) ? "bss " : ""); 463178354Ssam 464178354Ssam if (ni == vap->iv_bss) { 465178354Ssam notify_macaddr(ifp, newassoc ? 466178354Ssam RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid); 467138568Ssam if_link_state_change(ifp, LINK_STATE_UP); 468144302Ssam } else { 469178354Ssam notify_macaddr(ifp, newassoc ? 470178354Ssam RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr); 471138568Ssam } 472138568Ssam} 473138568Ssam 474138568Ssamvoid 475178354Ssamieee80211_notify_node_leave(struct ieee80211_node *ni) 476138568Ssam{ 477178354Ssam struct ieee80211vap *vap = ni->ni_vap; 478178354Ssam struct ifnet *ifp = vap->iv_ifp; 479138568Ssam 480178354Ssam IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave", 481178354Ssam (ni == vap->iv_bss) ? "bss " : ""); 482178354Ssam 483178354Ssam if (ni == vap->iv_bss) { 484138568Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0); 485138568Ssam if_link_state_change(ifp, LINK_STATE_DOWN); 486138568Ssam } else { 487138568Ssam /* fire off wireless event station leaving */ 488178354Ssam notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr); 489138568Ssam } 490138568Ssam} 491138568Ssam 492138568Ssamvoid 493178354Ssamieee80211_notify_scan_done(struct ieee80211vap *vap) 494138568Ssam{ 495178354Ssam struct ifnet *ifp = vap->iv_ifp; 496138568Ssam 497178354Ssam IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done"); 498138568Ssam 499138568Ssam /* dispatch wireless event indicating scan completed */ 500138568Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0); 501138568Ssam} 502138568Ssam 503138568Ssamvoid 504178354Ssamieee80211_notify_replay_failure(struct ieee80211vap *vap, 505138568Ssam const struct ieee80211_frame *wh, const struct ieee80211_key *k, 506138568Ssam u_int64_t rsc) 507138568Ssam{ 508178354Ssam struct ifnet *ifp = vap->iv_ifp; 509138568Ssam 510178354Ssam IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 511178354Ssam "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>", 512178354Ssam k->wk_cipher->ic_name, (intmax_t) rsc, 513178354Ssam (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID], 514148863Ssam k->wk_keyix, k->wk_rxkeyix); 515138568Ssam 516138568Ssam if (ifp != NULL) { /* NB: for cipher test modules */ 517138568Ssam struct ieee80211_replay_event iev; 518138568Ssam 519138568Ssam IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 520138568Ssam IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 521138568Ssam iev.iev_cipher = k->wk_cipher->ic_cipher; 522148863Ssam if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE) 523148863Ssam iev.iev_keyix = k->wk_rxkeyix; 524148863Ssam else 525148863Ssam iev.iev_keyix = k->wk_keyix; 526178354Ssam iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */ 527138568Ssam iev.iev_rsc = rsc; 528138568Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev)); 529138568Ssam } 530138568Ssam} 531138568Ssam 532138568Ssamvoid 533178354Ssamieee80211_notify_michael_failure(struct ieee80211vap *vap, 534138568Ssam const struct ieee80211_frame *wh, u_int keyix) 535138568Ssam{ 536178354Ssam struct ifnet *ifp = vap->iv_ifp; 537138568Ssam 538178354Ssam IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, 539178354Ssam "michael MIC verification failed <keyix %u>", keyix); 540178354Ssam vap->iv_stats.is_rx_tkipmic++; 541138568Ssam 542138568Ssam if (ifp != NULL) { /* NB: for cipher test modules */ 543138568Ssam struct ieee80211_michael_event iev; 544138568Ssam 545138568Ssam IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1); 546138568Ssam IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2); 547138568Ssam iev.iev_cipher = IEEE80211_CIPHER_TKIP; 548138568Ssam iev.iev_keyix = keyix; 549138568Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev)); 550138568Ssam } 551138568Ssam} 552138568Ssam 553138568Ssamvoid 554178354Ssamieee80211_notify_wds_discover(struct ieee80211_node *ni) 555178354Ssam{ 556178354Ssam struct ieee80211vap *vap = ni->ni_vap; 557178354Ssam struct ifnet *ifp = vap->iv_ifp; 558178354Ssam 559178354Ssam notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr); 560178354Ssam} 561178354Ssam 562178354Ssamvoid 563178354Ssamieee80211_notify_csa(struct ieee80211com *ic, 564178354Ssam const struct ieee80211_channel *c, int mode, int count) 565178354Ssam{ 566178354Ssam struct ifnet *ifp = ic->ic_ifp; 567178354Ssam struct ieee80211_csa_event iev; 568178354Ssam 569178354Ssam memset(&iev, 0, sizeof(iev)); 570178354Ssam iev.iev_flags = c->ic_flags; 571178354Ssam iev.iev_freq = c->ic_freq; 572178354Ssam iev.iev_ieee = c->ic_ieee; 573178354Ssam iev.iev_mode = mode; 574178354Ssam iev.iev_count = count; 575178354Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev)); 576178354Ssam} 577178354Ssam 578178354Ssamvoid 579178354Ssamieee80211_notify_radar(struct ieee80211com *ic, 580178354Ssam const struct ieee80211_channel *c) 581178354Ssam{ 582178354Ssam struct ifnet *ifp = ic->ic_ifp; 583178354Ssam struct ieee80211_radar_event iev; 584178354Ssam 585178354Ssam memset(&iev, 0, sizeof(iev)); 586178354Ssam iev.iev_flags = c->ic_flags; 587178354Ssam iev.iev_freq = c->ic_freq; 588178354Ssam iev.iev_ieee = c->ic_ieee; 589178354Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev)); 590178354Ssam} 591178354Ssam 592178354Ssamvoid 593178354Ssamieee80211_notify_cac(struct ieee80211com *ic, 594178354Ssam const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type) 595178354Ssam{ 596178354Ssam struct ifnet *ifp = ic->ic_ifp; 597178354Ssam struct ieee80211_cac_event iev; 598178354Ssam 599178354Ssam memset(&iev, 0, sizeof(iev)); 600178354Ssam iev.iev_flags = c->ic_flags; 601178354Ssam iev.iev_freq = c->ic_freq; 602178354Ssam iev.iev_ieee = c->ic_ieee; 603178354Ssam iev.iev_type = type; 604178354Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev)); 605178354Ssam} 606178354Ssam 607178354Ssamvoid 608178354Ssamieee80211_notify_node_deauth(struct ieee80211_node *ni) 609178354Ssam{ 610178354Ssam struct ieee80211vap *vap = ni->ni_vap; 611178354Ssam struct ifnet *ifp = vap->iv_ifp; 612178354Ssam 613178354Ssam IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth"); 614178354Ssam 615178354Ssam notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr); 616178354Ssam} 617178354Ssam 618178354Ssamvoid 619178354Ssamieee80211_notify_node_auth(struct ieee80211_node *ni) 620178354Ssam{ 621178354Ssam struct ieee80211vap *vap = ni->ni_vap; 622178354Ssam struct ifnet *ifp = vap->iv_ifp; 623178354Ssam 624178354Ssam IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node auth"); 625178354Ssam 626178354Ssam notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr); 627178354Ssam} 628178354Ssam 629178354Ssamvoid 630178354Ssamieee80211_notify_country(struct ieee80211vap *vap, 631178354Ssam const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2]) 632178354Ssam{ 633178354Ssam struct ifnet *ifp = vap->iv_ifp; 634178354Ssam struct ieee80211_country_event iev; 635178354Ssam 636178354Ssam memset(&iev, 0, sizeof(iev)); 637178354Ssam IEEE80211_ADDR_COPY(iev.iev_addr, bssid); 638178354Ssam iev.iev_cc[0] = cc[0]; 639178354Ssam iev.iev_cc[1] = cc[1]; 640178354Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev)); 641178354Ssam} 642178354Ssam 643178354Ssamvoid 644178354Ssamieee80211_notify_radio(struct ieee80211com *ic, int state) 645178354Ssam{ 646178354Ssam struct ifnet *ifp = ic->ic_ifp; 647178354Ssam struct ieee80211_radio_event iev; 648178354Ssam 649178354Ssam memset(&iev, 0, sizeof(iev)); 650178354Ssam iev.iev_state = state; 651178354Ssam rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev)); 652178354Ssam} 653178354Ssam 654178354Ssamvoid 655138568Ssamieee80211_load_module(const char *modname) 656138568Ssam{ 657159590Sjhb 658138777Ssam#ifdef notyet 659159590Sjhb (void)kern_kldload(curthread, modname, NULL); 660138777Ssam#else 661138777Ssam printf("%s: load the %s module by hand for now.\n", __func__, modname); 662138777Ssam#endif 663138568Ssam} 664138568Ssam 665138568Ssam/* 666138568Ssam * Module glue. 667138568Ssam * 668138568Ssam * NB: the module name is "wlan" for compatibility with NetBSD. 669138568Ssam */ 670138568Ssamstatic int 671138568Ssamwlan_modevent(module_t mod, int type, void *unused) 672138568Ssam{ 673138568Ssam switch (type) { 674138568Ssam case MOD_LOAD: 675138568Ssam if (bootverbose) 676138568Ssam printf("wlan: <802.11 Link Layer>\n"); 677178354Ssam if_clone_attach(&wlan_cloner); 678178354Ssam if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free); 679138568Ssam return 0; 680138568Ssam case MOD_UNLOAD: 681178354Ssam if_deregister_com_alloc(IFT_IEEE80211); 682178354Ssam if_clone_detach(&wlan_cloner); 683138568Ssam return 0; 684138568Ssam } 685138568Ssam return EINVAL; 686138568Ssam} 687138568Ssam 688138568Ssamstatic moduledata_t wlan_mod = { 689138568Ssam "wlan", 690138568Ssam wlan_modevent, 691138568Ssam 0 692138568Ssam}; 693138568SsamDECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 694138568SsamMODULE_VERSION(wlan, 1); 695138568SsamMODULE_DEPEND(wlan, ether, 1, 1, 1); 696