11a1e1d21SSam Leffler /*- 27535e66aSSam Leffler * Copyright (c) 2001 Atsushi Onoe 310ad9a77SSam Leffler * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 41a1e1d21SSam Leffler * All rights reserved. 51a1e1d21SSam Leffler * 61a1e1d21SSam Leffler * Redistribution and use in source and binary forms, with or without 71a1e1d21SSam Leffler * modification, are permitted provided that the following conditions 81a1e1d21SSam Leffler * are met: 91a1e1d21SSam Leffler * 1. Redistributions of source code must retain the above copyright 107535e66aSSam Leffler * notice, this list of conditions and the following disclaimer. 117535e66aSSam Leffler * 2. Redistributions in binary form must reproduce the above copyright 127535e66aSSam Leffler * notice, this list of conditions and the following disclaimer in the 137535e66aSSam Leffler * documentation and/or other materials provided with the distribution. 141a1e1d21SSam Leffler * 157535e66aSSam Leffler * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 167535e66aSSam Leffler * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 177535e66aSSam Leffler * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 187535e66aSSam Leffler * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 197535e66aSSam Leffler * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 207535e66aSSam Leffler * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 217535e66aSSam Leffler * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 227535e66aSSam Leffler * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 237535e66aSSam Leffler * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 247535e66aSSam Leffler * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 251a1e1d21SSam Leffler */ 261a1e1d21SSam Leffler 271a1e1d21SSam Leffler #include <sys/cdefs.h> 281a1e1d21SSam Leffler __FBSDID("$FreeBSD$"); 291a1e1d21SSam Leffler 30b032f27cSSam Leffler #include "opt_wlan.h" 31b032f27cSSam Leffler 321a1e1d21SSam Leffler #include <sys/param.h> 331a1e1d21SSam Leffler #include <sys/systm.h> 341a1e1d21SSam Leffler #include <sys/mbuf.h> 351a1e1d21SSam Leffler #include <sys/malloc.h> 361a1e1d21SSam Leffler #include <sys/kernel.h> 371a1e1d21SSam Leffler 388a1b9b6aSSam Leffler #include <sys/socket.h> 391a1e1d21SSam Leffler 401a1e1d21SSam Leffler #include <net/if.h> 4176039bc8SGleb Smirnoff #include <net/if_var.h> 421a1e1d21SSam Leffler #include <net/if_media.h> 431a1e1d21SSam Leffler #include <net/ethernet.h> 441a1e1d21SSam Leffler 451a1e1d21SSam Leffler #include <net80211/ieee80211_var.h> 46b032f27cSSam Leffler #include <net80211/ieee80211_input.h> 47616190d0SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 48616190d0SSam Leffler #include <net80211/ieee80211_superg.h> 49616190d0SSam Leffler #endif 5010ad9a77SSam Leffler #ifdef IEEE80211_SUPPORT_TDMA 5110ad9a77SSam Leffler #include <net80211/ieee80211_tdma.h> 5210ad9a77SSam Leffler #endif 53b032f27cSSam Leffler #include <net80211/ieee80211_wds.h> 5459aa14a9SRui Paulo #include <net80211/ieee80211_mesh.h> 55b6108616SRui Paulo #include <net80211/ieee80211_ratectl.h> 561a1e1d21SSam Leffler 571a1e1d21SSam Leffler #include <net/bpf.h> 581a1e1d21SSam Leffler 597268fa64SSam Leffler /* 6059aa14a9SRui Paulo * IEEE80211_NODE_HASHSIZE must be a power of 2. 6159aa14a9SRui Paulo */ 6259aa14a9SRui Paulo CTASSERT((IEEE80211_NODE_HASHSIZE & (IEEE80211_NODE_HASHSIZE-1)) == 0); 6359aa14a9SRui Paulo 6459aa14a9SRui Paulo /* 657268fa64SSam Leffler * Association id's are managed with a bit vector. 667268fa64SSam Leffler */ 67b032f27cSSam Leffler #define IEEE80211_AID_SET(_vap, b) \ 68b032f27cSSam Leffler ((_vap)->iv_aid_bitmap[IEEE80211_AID(b) / 32] |= \ 69b032f27cSSam Leffler (1 << (IEEE80211_AID(b) % 32))) 70b032f27cSSam Leffler #define IEEE80211_AID_CLR(_vap, b) \ 71b032f27cSSam Leffler ((_vap)->iv_aid_bitmap[IEEE80211_AID(b) / 32] &= \ 72b032f27cSSam Leffler ~(1 << (IEEE80211_AID(b) % 32))) 73b032f27cSSam Leffler #define IEEE80211_AID_ISSET(_vap, b) \ 74b032f27cSSam Leffler ((_vap)->iv_aid_bitmap[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32))) 757268fa64SSam Leffler 7668e8e04eSSam Leffler static int ieee80211_sta_join1(struct ieee80211_node *); 7768e8e04eSSam Leffler 7838c208f8SSam Leffler static struct ieee80211_node *node_alloc(struct ieee80211vap *, 7938c208f8SSam Leffler const uint8_t [IEEE80211_ADDR_LEN]); 808a1b9b6aSSam Leffler static void node_cleanup(struct ieee80211_node *); 818a1b9b6aSSam Leffler static void node_free(struct ieee80211_node *); 82b032f27cSSam Leffler static void node_age(struct ieee80211_node *); 8368e8e04eSSam Leffler static int8_t node_getrssi(const struct ieee80211_node *); 8468e8e04eSSam Leffler static void node_getsignal(const struct ieee80211_node *, int8_t *, int8_t *); 85b032f27cSSam Leffler static void node_getmimoinfo(const struct ieee80211_node *, 86b032f27cSSam Leffler struct ieee80211_mimo_info *); 871a1e1d21SSam Leffler 888a1b9b6aSSam Leffler static void _ieee80211_free_node(struct ieee80211_node *); 898a1b9b6aSSam Leffler 908a055831SAdrian Chadd static void node_reclaim(struct ieee80211_node_table *nt, 918a055831SAdrian Chadd struct ieee80211_node *ni); 928a1b9b6aSSam Leffler static void ieee80211_node_table_init(struct ieee80211com *ic, 93c1225b52SSam Leffler struct ieee80211_node_table *nt, const char *name, 9468e8e04eSSam Leffler int inact, int keymaxix); 95b032f27cSSam Leffler static void ieee80211_node_table_reset(struct ieee80211_node_table *, 96b032f27cSSam Leffler struct ieee80211vap *); 978a1b9b6aSSam Leffler static void ieee80211_node_table_cleanup(struct ieee80211_node_table *nt); 98b105a069SSam Leffler static void ieee80211_erp_timeout(struct ieee80211com *); 991a1e1d21SSam Leffler 10032346d60SSam Leffler MALLOC_DEFINE(M_80211_NODE, "80211node", "802.11 node state"); 101b032f27cSSam Leffler MALLOC_DEFINE(M_80211_NODE_IE, "80211nodeie", "802.11 node ie"); 10237c150c4SSam Leffler 1031a1e1d21SSam Leffler void 1048a1b9b6aSSam Leffler ieee80211_node_attach(struct ieee80211com *ic) 1051a1e1d21SSam Leffler { 1065b16c28cSSam Leffler /* XXX really want maxlen enforced per-sta */ 1075b16c28cSSam Leffler ieee80211_ageq_init(&ic->ic_stageq, ic->ic_max_keyix * 8, 1085b16c28cSSam Leffler "802.11 staging q"); 109b032f27cSSam Leffler ieee80211_node_table_init(ic, &ic->ic_sta, "station", 110b032f27cSSam Leffler IEEE80211_INACT_INIT, ic->ic_max_keyix); 111fd90e2edSJung-uk Kim callout_init(&ic->ic_inact, 1); 112b032f27cSSam Leffler callout_reset(&ic->ic_inact, IEEE80211_INACT_WAIT*hz, 113b032f27cSSam Leffler ieee80211_node_timeout, ic); 1141a1e1d21SSam Leffler 1158a1b9b6aSSam Leffler ic->ic_node_alloc = node_alloc; 1168a1b9b6aSSam Leffler ic->ic_node_free = node_free; 1178a1b9b6aSSam Leffler ic->ic_node_cleanup = node_cleanup; 118b032f27cSSam Leffler ic->ic_node_age = node_age; 119b032f27cSSam Leffler ic->ic_node_drain = node_age; /* NB: same as age */ 1208a1b9b6aSSam Leffler ic->ic_node_getrssi = node_getrssi; 12168e8e04eSSam Leffler ic->ic_node_getsignal = node_getsignal; 122b032f27cSSam Leffler ic->ic_node_getmimoinfo = node_getmimoinfo; 1238a1b9b6aSSam Leffler 124b032f27cSSam Leffler /* 125b032f27cSSam Leffler * Set flags to be propagated to all vap's; 126b032f27cSSam Leffler * these define default behaviour/configuration. 127b032f27cSSam Leffler */ 128c066143cSSam Leffler ic->ic_flags_ext |= IEEE80211_FEXT_INACT; /* inactivity processing */ 129c1225b52SSam Leffler } 130c1225b52SSam Leffler 131c1225b52SSam Leffler void 1328a1b9b6aSSam Leffler ieee80211_node_detach(struct ieee80211com *ic) 1331a1e1d21SSam Leffler { 1341a1e1d21SSam Leffler 135b032f27cSSam Leffler callout_drain(&ic->ic_inact); 136acc4f7f5SSam Leffler ieee80211_node_table_cleanup(&ic->ic_sta); 1375b16c28cSSam Leffler ieee80211_ageq_cleanup(&ic->ic_stageq); 138b032f27cSSam Leffler } 139b032f27cSSam Leffler 140b032f27cSSam Leffler void 141b032f27cSSam Leffler ieee80211_node_vattach(struct ieee80211vap *vap) 142b032f27cSSam Leffler { 143b032f27cSSam Leffler /* NB: driver can override */ 144b032f27cSSam Leffler vap->iv_max_aid = IEEE80211_AID_DEF; 145b032f27cSSam Leffler 146b032f27cSSam Leffler /* default station inactivity timer setings */ 147b032f27cSSam Leffler vap->iv_inact_init = IEEE80211_INACT_INIT; 148b032f27cSSam Leffler vap->iv_inact_auth = IEEE80211_INACT_AUTH; 149b032f27cSSam Leffler vap->iv_inact_run = IEEE80211_INACT_RUN; 150b032f27cSSam Leffler vap->iv_inact_probe = IEEE80211_INACT_PROBE; 151be1054edSSam Leffler 152be1054edSSam Leffler IEEE80211_DPRINTF(vap, IEEE80211_MSG_INACT, 153be1054edSSam Leffler "%s: init %u auth %u run %u probe %u\n", __func__, 154be1054edSSam Leffler vap->iv_inact_init, vap->iv_inact_auth, 155be1054edSSam Leffler vap->iv_inact_run, vap->iv_inact_probe); 156b032f27cSSam Leffler } 157b032f27cSSam Leffler 158b032f27cSSam Leffler void 159b032f27cSSam Leffler ieee80211_node_latevattach(struct ieee80211vap *vap) 160b032f27cSSam Leffler { 161b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_HOSTAP) { 162b032f27cSSam Leffler /* XXX should we allow max aid to be zero? */ 163b032f27cSSam Leffler if (vap->iv_max_aid < IEEE80211_AID_MIN) { 164b032f27cSSam Leffler vap->iv_max_aid = IEEE80211_AID_MIN; 165b032f27cSSam Leffler if_printf(vap->iv_ifp, 166b032f27cSSam Leffler "WARNING: max aid too small, changed to %d\n", 167b032f27cSSam Leffler vap->iv_max_aid); 168b032f27cSSam Leffler } 169b9b53389SAdrian Chadd vap->iv_aid_bitmap = (uint32_t *) IEEE80211_MALLOC( 170c5abbba3SDag-Erling Smørgrav howmany(vap->iv_max_aid, 32) * sizeof(uint32_t), 171b9b53389SAdrian Chadd M_80211_NODE, 172b9b53389SAdrian Chadd IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 173b032f27cSSam Leffler if (vap->iv_aid_bitmap == NULL) { 174b032f27cSSam Leffler /* XXX no way to recover */ 175b032f27cSSam Leffler printf("%s: no memory for AID bitmap, max aid %d!\n", 176b032f27cSSam Leffler __func__, vap->iv_max_aid); 177b032f27cSSam Leffler vap->iv_max_aid = 0; 178b032f27cSSam Leffler } 179b032f27cSSam Leffler } 180b032f27cSSam Leffler 181b032f27cSSam Leffler ieee80211_reset_bss(vap); 182b032f27cSSam Leffler 183b032f27cSSam Leffler vap->iv_auth = ieee80211_authenticator_get(vap->iv_bss->ni_authmode); 184b032f27cSSam Leffler } 185b032f27cSSam Leffler 186b032f27cSSam Leffler void 187b032f27cSSam Leffler ieee80211_node_vdetach(struct ieee80211vap *vap) 188b032f27cSSam Leffler { 189b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 190b032f27cSSam Leffler 191b032f27cSSam Leffler ieee80211_node_table_reset(&ic->ic_sta, vap); 192b032f27cSSam Leffler if (vap->iv_bss != NULL) { 193b032f27cSSam Leffler ieee80211_free_node(vap->iv_bss); 194b032f27cSSam Leffler vap->iv_bss = NULL; 195b032f27cSSam Leffler } 196b032f27cSSam Leffler if (vap->iv_aid_bitmap != NULL) { 197b9b53389SAdrian Chadd IEEE80211_FREE(vap->iv_aid_bitmap, M_80211_NODE); 198b032f27cSSam Leffler vap->iv_aid_bitmap = NULL; 1998a1b9b6aSSam Leffler } 2008a1b9b6aSSam Leffler } 2018a1b9b6aSSam Leffler 2028a1b9b6aSSam Leffler /* 2038a1b9b6aSSam Leffler * Port authorize/unauthorize interfaces for use by an authenticator. 2048a1b9b6aSSam Leffler */ 2058a1b9b6aSSam Leffler 2068a1b9b6aSSam Leffler void 207e4918ecdSSam Leffler ieee80211_node_authorize(struct ieee80211_node *ni) 2088a1b9b6aSSam Leffler { 209be1054edSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 210be1054edSSam Leffler 2118a1b9b6aSSam Leffler ni->ni_flags |= IEEE80211_NODE_AUTH; 212be1054edSSam Leffler ni->ni_inact_reload = vap->iv_inact_run; 213c066143cSSam Leffler ni->ni_inact = ni->ni_inact_reload; 214be1054edSSam Leffler 215be1054edSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni, 216be1054edSSam Leffler "%s: inact_reload %u", __func__, ni->ni_inact_reload); 2178a1b9b6aSSam Leffler } 2188a1b9b6aSSam Leffler 2198a1b9b6aSSam Leffler void 220e4918ecdSSam Leffler ieee80211_node_unauthorize(struct ieee80211_node *ni) 2218a1b9b6aSSam Leffler { 222be1054edSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 223be1054edSSam Leffler 2248a1b9b6aSSam Leffler ni->ni_flags &= ~IEEE80211_NODE_AUTH; 225be1054edSSam Leffler ni->ni_inact_reload = vap->iv_inact_auth; 226c066143cSSam Leffler if (ni->ni_inact > ni->ni_inact_reload) 227c066143cSSam Leffler ni->ni_inact = ni->ni_inact_reload; 228be1054edSSam Leffler 229be1054edSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni, 230be1054edSSam Leffler "%s: inact_reload %u inact %u", __func__, 231be1054edSSam Leffler ni->ni_inact_reload, ni->ni_inact); 2328a1b9b6aSSam Leffler } 2338a1b9b6aSSam Leffler 2348a1b9b6aSSam Leffler /* 23501a03542SSam Leffler * Fix tx parameters for a node according to ``association state''. 23601a03542SSam Leffler */ 237d77148fbSSam Leffler void 238d77148fbSSam Leffler ieee80211_node_setuptxparms(struct ieee80211_node *ni) 23901a03542SSam Leffler { 24001a03542SSam Leffler struct ieee80211vap *vap = ni->ni_vap; 241f76cde95SSam Leffler enum ieee80211_phymode mode; 24201a03542SSam Leffler 24301a03542SSam Leffler if (ni->ni_flags & IEEE80211_NODE_HT) { 24401a03542SSam Leffler if (IEEE80211_IS_CHAN_5GHZ(ni->ni_chan)) 245f76cde95SSam Leffler mode = IEEE80211_MODE_11NA; 24601a03542SSam Leffler else 247f76cde95SSam Leffler mode = IEEE80211_MODE_11NG; 24801a03542SSam Leffler } else { /* legacy rate handling */ 249f76cde95SSam Leffler if (IEEE80211_IS_CHAN_ST(ni->ni_chan)) 250f76cde95SSam Leffler mode = IEEE80211_MODE_STURBO_A; 2516a76ae21SSam Leffler else if (IEEE80211_IS_CHAN_HALF(ni->ni_chan)) 2526a76ae21SSam Leffler mode = IEEE80211_MODE_HALF; 2536a76ae21SSam Leffler else if (IEEE80211_IS_CHAN_QUARTER(ni->ni_chan)) 2546a76ae21SSam Leffler mode = IEEE80211_MODE_QUARTER; 255c5262b82SSam Leffler /* NB: 108A should be handled as 11a */ 256f76cde95SSam Leffler else if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 257f76cde95SSam Leffler mode = IEEE80211_MODE_11A; 258c5262b82SSam Leffler else if (IEEE80211_IS_CHAN_108G(ni->ni_chan) || 259c5262b82SSam Leffler (ni->ni_flags & IEEE80211_NODE_ERP)) 260f76cde95SSam Leffler mode = IEEE80211_MODE_11G; 26101a03542SSam Leffler else 262f76cde95SSam Leffler mode = IEEE80211_MODE_11B; 26301a03542SSam Leffler } 264f76cde95SSam Leffler ni->ni_txparms = &vap->iv_txparms[mode]; 26501a03542SSam Leffler } 26601a03542SSam Leffler 26701a03542SSam Leffler /* 2688a1b9b6aSSam Leffler * Set/change the channel. The rate set is also updated as 2698a1b9b6aSSam Leffler * to insure a consistent view by drivers. 270b032f27cSSam Leffler * XXX should be private but hostap needs it to deal with CSA 2718a1b9b6aSSam Leffler */ 272b032f27cSSam Leffler void 273b032f27cSSam Leffler ieee80211_node_set_chan(struct ieee80211_node *ni, 274b032f27cSSam Leffler struct ieee80211_channel *chan) 2758a1b9b6aSSam Leffler { 276b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 27701a03542SSam Leffler struct ieee80211vap *vap = ni->ni_vap; 27801a03542SSam Leffler enum ieee80211_phymode mode; 27968e8e04eSSam Leffler 280b032f27cSSam Leffler KASSERT(chan != IEEE80211_CHAN_ANYC, ("no channel")); 281b032f27cSSam Leffler 2828a1b9b6aSSam Leffler ni->ni_chan = chan; 28301a03542SSam Leffler mode = ieee80211_chan2mode(chan); 28468e8e04eSSam Leffler if (IEEE80211_IS_CHAN_HT(chan)) { 28568e8e04eSSam Leffler /* 286597029bfSBernhard Schmidt * We must install the legacy rate est in ni_rates and the 28768e8e04eSSam Leffler * HT rate set in ni_htrates. 28868e8e04eSSam Leffler */ 28968e8e04eSSam Leffler ni->ni_htrates = *ieee80211_get_suphtrates(ic, chan); 29001a03542SSam Leffler /* 29101a03542SSam Leffler * Setup bss tx parameters based on operating mode. We 29201a03542SSam Leffler * use legacy rates when operating in a mixed HT+non-HT bss 29301a03542SSam Leffler * and non-ERP rates in 11g for mixed ERP+non-ERP bss. 29401a03542SSam Leffler */ 29501a03542SSam Leffler if (mode == IEEE80211_MODE_11NA && 2962bfc8a91SSam Leffler (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 29701a03542SSam Leffler mode = IEEE80211_MODE_11A; 29801a03542SSam Leffler else if (mode == IEEE80211_MODE_11NG && 2992bfc8a91SSam Leffler (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0) 30001a03542SSam Leffler mode = IEEE80211_MODE_11G; 30101a03542SSam Leffler if (mode == IEEE80211_MODE_11G && 30201a03542SSam Leffler (vap->iv_flags & IEEE80211_F_PUREG) == 0) 30301a03542SSam Leffler mode = IEEE80211_MODE_11B; 30468e8e04eSSam Leffler } 30501a03542SSam Leffler ni->ni_txparms = &vap->iv_txparms[mode]; 30641b3c790SSam Leffler ni->ni_rates = *ieee80211_get_suprates(ic, chan); 3071a1e1d21SSam Leffler } 3081a1e1d21SSam Leffler 309f9cd9174SSam Leffler static __inline void 310f9cd9174SSam Leffler copy_bss(struct ieee80211_node *nbss, const struct ieee80211_node *obss) 311f9cd9174SSam Leffler { 312f9cd9174SSam Leffler /* propagate useful state */ 313f9cd9174SSam Leffler nbss->ni_authmode = obss->ni_authmode; 314f9cd9174SSam Leffler nbss->ni_txpower = obss->ni_txpower; 315f9cd9174SSam Leffler nbss->ni_vlan = obss->ni_vlan; 316f9cd9174SSam Leffler /* XXX statistics? */ 317b032f27cSSam Leffler /* XXX legacy WDS bssid? */ 318f9cd9174SSam Leffler } 319f9cd9174SSam Leffler 3201a1e1d21SSam Leffler void 321b032f27cSSam Leffler ieee80211_create_ibss(struct ieee80211vap* vap, struct ieee80211_channel *chan) 3221a1e1d21SSam Leffler { 323b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 3241a1e1d21SSam Leffler struct ieee80211_node *ni; 3258a1b9b6aSSam Leffler 326b032f27cSSam Leffler IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, 3272b8b8ae8SAdrian Chadd "%s: creating %s on channel %u%c\n", __func__, 32859aa14a9SRui Paulo ieee80211_opmode_name[vap->iv_opmode], 3292b8b8ae8SAdrian Chadd ieee80211_chan2ieee(ic, chan), 3302b8b8ae8SAdrian Chadd ieee80211_channel_type_char(chan)); 3318a1b9b6aSSam Leffler 332b032f27cSSam Leffler ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->iv_myaddr); 333acc4f7f5SSam Leffler if (ni == NULL) { 334acc4f7f5SSam Leffler /* XXX recovery? */ 3358a1b9b6aSSam Leffler return; 3368a1b9b6aSSam Leffler } 337b032f27cSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_myaddr); 338b032f27cSSam Leffler ni->ni_esslen = vap->iv_des_ssid[0].len; 339b032f27cSSam Leffler memcpy(ni->ni_essid, vap->iv_des_ssid[0].ssid, ni->ni_esslen); 340b032f27cSSam Leffler if (vap->iv_bss != NULL) 341b032f27cSSam Leffler copy_bss(ni, vap->iv_bss); 342d365f9c7SSam Leffler ni->ni_intval = ic->ic_bintval; 343b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_PRIVACY) 3441a1e1d21SSam Leffler ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; 3451a1e1d21SSam Leffler if (ic->ic_phytype == IEEE80211_T_FH) { 3461a1e1d21SSam Leffler ni->ni_fhdwell = 200; /* XXX */ 3471a1e1d21SSam Leffler ni->ni_fhindex = 1; 3481a1e1d21SSam Leffler } 349b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_IBSS) { 350b032f27cSSam Leffler vap->iv_flags |= IEEE80211_F_SIBSS; 3518a1b9b6aSSam Leffler ni->ni_capinfo |= IEEE80211_CAPINFO_IBSS; /* XXX */ 352b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_DESBSSID) 353b032f27cSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_des_bssid); 354fe49f061SSam Leffler else { 355fe49f061SSam Leffler get_random_bytes(ni->ni_bssid, IEEE80211_ADDR_LEN); 356fe49f061SSam Leffler /* clear group bit, add local bit */ 357fe49f061SSam Leffler ni->ni_bssid[0] = (ni->ni_bssid[0] &~ 0x01) | 0x02; 358fe49f061SSam Leffler } 359b032f27cSSam Leffler } else if (vap->iv_opmode == IEEE80211_M_AHDEMO) { 360b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_DESBSSID) 361b032f27cSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_des_bssid); 36250d8b493SSam Leffler else 36310ad9a77SSam Leffler #ifdef IEEE80211_SUPPORT_TDMA 36410ad9a77SSam Leffler if ((vap->iv_caps & IEEE80211_C_TDMA) == 0) 36510ad9a77SSam Leffler #endif 36650d8b493SSam Leffler memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); 36759aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 36859aa14a9SRui Paulo } else if (vap->iv_opmode == IEEE80211_M_MBSS) { 36959aa14a9SRui Paulo ni->ni_meshidlen = vap->iv_mesh->ms_idlen; 37059aa14a9SRui Paulo memcpy(ni->ni_meshid, vap->iv_mesh->ms_id, ni->ni_meshidlen); 37159aa14a9SRui Paulo #endif 3728a1b9b6aSSam Leffler } 3738a1b9b6aSSam Leffler /* 3748a1b9b6aSSam Leffler * Fix the channel and related attributes. 3758a1b9b6aSSam Leffler */ 376b032f27cSSam Leffler /* clear DFS CAC state on previous channel */ 377b032f27cSSam Leffler if (ic->ic_bsschan != IEEE80211_CHAN_ANYC && 378b032f27cSSam Leffler ic->ic_bsschan->ic_freq != chan->ic_freq && 379b032f27cSSam Leffler IEEE80211_IS_CHAN_CACDONE(ic->ic_bsschan)) 380b032f27cSSam Leffler ieee80211_dfs_cac_clear(ic, ic->ic_bsschan); 38168e8e04eSSam Leffler ic->ic_bsschan = chan; 382b032f27cSSam Leffler ieee80211_node_set_chan(ni, chan); 38368e8e04eSSam Leffler ic->ic_curmode = ieee80211_chan2mode(chan); 3848a1b9b6aSSam Leffler /* 385b032f27cSSam Leffler * Do mode-specific setup. 3868a1b9b6aSSam Leffler */ 38768e8e04eSSam Leffler if (IEEE80211_IS_CHAN_FULL(chan)) { 38868e8e04eSSam Leffler if (IEEE80211_IS_CHAN_ANYG(chan)) { 38968e8e04eSSam Leffler /* 390b032f27cSSam Leffler * Use a mixed 11b/11g basic rate set. 39168e8e04eSSam Leffler */ 392b032f27cSSam Leffler ieee80211_setbasicrates(&ni->ni_rates, 39368e8e04eSSam Leffler IEEE80211_MODE_11G); 394b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_PUREG) { 395b032f27cSSam Leffler /* 396b032f27cSSam Leffler * Also mark OFDM rates basic so 11b 397b032f27cSSam Leffler * stations do not join (WiFi compliance). 398b032f27cSSam Leffler */ 399b032f27cSSam Leffler ieee80211_addbasicrates(&ni->ni_rates, 400b032f27cSSam Leffler IEEE80211_MODE_11A); 401b032f27cSSam Leffler } 40268e8e04eSSam Leffler } else if (IEEE80211_IS_CHAN_B(chan)) { 40368e8e04eSSam Leffler /* 40468e8e04eSSam Leffler * Force pure 11b rate set. 40568e8e04eSSam Leffler */ 406b032f27cSSam Leffler ieee80211_setbasicrates(&ni->ni_rates, 40768e8e04eSSam Leffler IEEE80211_MODE_11B); 40868e8e04eSSam Leffler } 4091a1e1d21SSam Leffler } 4101a1e1d21SSam Leffler 41168e8e04eSSam Leffler (void) ieee80211_sta_join1(ieee80211_ref_node(ni)); 41268e8e04eSSam Leffler } 41368e8e04eSSam Leffler 41468e8e04eSSam Leffler /* 41568e8e04eSSam Leffler * Reset bss state on transition to the INIT state. 41668e8e04eSSam Leffler * Clear any stations from the table (they have been 41768e8e04eSSam Leffler * deauth'd) and reset the bss node (clears key, rate 41868e8e04eSSam Leffler * etc. state). 41968e8e04eSSam Leffler */ 4208a1b9b6aSSam Leffler void 421b032f27cSSam Leffler ieee80211_reset_bss(struct ieee80211vap *vap) 422b4c5a90fSSam Leffler { 423b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 4248a1b9b6aSSam Leffler struct ieee80211_node *ni, *obss; 4258a1b9b6aSSam Leffler 426b032f27cSSam Leffler ieee80211_node_table_reset(&ic->ic_sta, vap); 427b032f27cSSam Leffler /* XXX multi-bss: wrong */ 42868e8e04eSSam Leffler ieee80211_reset_erp(ic); 429acc4f7f5SSam Leffler 430b032f27cSSam Leffler ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->iv_myaddr); 43148e1bda0SRui Paulo KASSERT(ni != NULL, ("unable to setup initial BSS node")); 432b032f27cSSam Leffler obss = vap->iv_bss; 433b032f27cSSam Leffler vap->iv_bss = ieee80211_ref_node(ni); 434f9cd9174SSam Leffler if (obss != NULL) { 435f9cd9174SSam Leffler copy_bss(ni, obss); 436d365f9c7SSam Leffler ni->ni_intval = ic->ic_bintval; 4378a1b9b6aSSam Leffler ieee80211_free_node(obss); 438b032f27cSSam Leffler } else 439b032f27cSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_myaddr); 440f9cd9174SSam Leffler } 4418a1b9b6aSSam Leffler 4428a1b9b6aSSam Leffler static int 44368e8e04eSSam Leffler match_ssid(const struct ieee80211_node *ni, 44468e8e04eSSam Leffler int nssid, const struct ieee80211_scan_ssid ssids[]) 4458a1b9b6aSSam Leffler { 44668e8e04eSSam Leffler int i; 44768e8e04eSSam Leffler 44868e8e04eSSam Leffler for (i = 0; i < nssid; i++) { 44968e8e04eSSam Leffler if (ni->ni_esslen == ssids[i].len && 45068e8e04eSSam Leffler memcmp(ni->ni_essid, ssids[i].ssid, ni->ni_esslen) == 0) 45168e8e04eSSam Leffler return 1; 45268e8e04eSSam Leffler } 45368e8e04eSSam Leffler return 0; 45468e8e04eSSam Leffler } 45568e8e04eSSam Leffler 45668e8e04eSSam Leffler /* 45768e8e04eSSam Leffler * Test a node for suitability/compatibility. 45868e8e04eSSam Leffler */ 45968e8e04eSSam Leffler static int 460b032f27cSSam Leffler check_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 46168e8e04eSSam Leffler { 462b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 46368e8e04eSSam Leffler uint8_t rate; 46468e8e04eSSam Leffler 46568e8e04eSSam Leffler if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ni->ni_chan))) 46668e8e04eSSam Leffler return 0; 467b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_IBSS) { 46868e8e04eSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) == 0) 46968e8e04eSSam Leffler return 0; 47068e8e04eSSam Leffler } else { 47168e8e04eSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_ESS) == 0) 47268e8e04eSSam Leffler return 0; 47368e8e04eSSam Leffler } 474b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_PRIVACY) { 47568e8e04eSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) == 0) 47668e8e04eSSam Leffler return 0; 47768e8e04eSSam Leffler } else { 47868e8e04eSSam Leffler /* XXX does this mean privacy is supported or required? */ 47968e8e04eSSam Leffler if (ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) 48068e8e04eSSam Leffler return 0; 48168e8e04eSSam Leffler } 48268e8e04eSSam Leffler rate = ieee80211_fix_rate(ni, &ni->ni_rates, 48368e8e04eSSam Leffler IEEE80211_F_JOIN | IEEE80211_F_DONEGO | IEEE80211_F_DOFRATE); 48468e8e04eSSam Leffler if (rate & IEEE80211_RATE_BASIC) 48568e8e04eSSam Leffler return 0; 486b032f27cSSam Leffler if (vap->iv_des_nssid != 0 && 487b032f27cSSam Leffler !match_ssid(ni, vap->iv_des_nssid, vap->iv_des_ssid)) 48868e8e04eSSam Leffler return 0; 489b032f27cSSam Leffler if ((vap->iv_flags & IEEE80211_F_DESBSSID) && 490b032f27cSSam Leffler !IEEE80211_ADDR_EQ(vap->iv_des_bssid, ni->ni_bssid)) 49168e8e04eSSam Leffler return 0; 49268e8e04eSSam Leffler return 1; 49368e8e04eSSam Leffler } 49468e8e04eSSam Leffler 49568e8e04eSSam Leffler #ifdef IEEE80211_DEBUG 49668e8e04eSSam Leffler /* 49768e8e04eSSam Leffler * Display node suitability/compatibility. 49868e8e04eSSam Leffler */ 49968e8e04eSSam Leffler static void 500b032f27cSSam Leffler check_bss_debug(struct ieee80211vap *vap, struct ieee80211_node *ni) 50168e8e04eSSam Leffler { 502b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 50368e8e04eSSam Leffler uint8_t rate; 504b4c5a90fSSam Leffler int fail; 505b4c5a90fSSam Leffler 506b4c5a90fSSam Leffler fail = 0; 507b4c5a90fSSam Leffler if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ni->ni_chan))) 508b4c5a90fSSam Leffler fail |= 0x01; 509b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_IBSS) { 510b4c5a90fSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) == 0) 511b4c5a90fSSam Leffler fail |= 0x02; 512b4c5a90fSSam Leffler } else { 513b4c5a90fSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_ESS) == 0) 514b4c5a90fSSam Leffler fail |= 0x02; 515b4c5a90fSSam Leffler } 516b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_PRIVACY) { 517b4c5a90fSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) == 0) 518b4c5a90fSSam Leffler fail |= 0x04; 519b4c5a90fSSam Leffler } else { 520b4c5a90fSSam Leffler /* XXX does this mean privacy is supported or required? */ 521b4c5a90fSSam Leffler if (ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) 522b4c5a90fSSam Leffler fail |= 0x04; 523b4c5a90fSSam Leffler } 52470e28b9aSSam Leffler rate = ieee80211_fix_rate(ni, &ni->ni_rates, 52579edaebfSSam Leffler IEEE80211_F_JOIN | IEEE80211_F_DONEGO | IEEE80211_F_DOFRATE); 526b4c5a90fSSam Leffler if (rate & IEEE80211_RATE_BASIC) 527b4c5a90fSSam Leffler fail |= 0x08; 528b032f27cSSam Leffler if (vap->iv_des_nssid != 0 && 529b032f27cSSam Leffler !match_ssid(ni, vap->iv_des_nssid, vap->iv_des_ssid)) 530b4c5a90fSSam Leffler fail |= 0x10; 531b032f27cSSam Leffler if ((vap->iv_flags & IEEE80211_F_DESBSSID) && 532b032f27cSSam Leffler !IEEE80211_ADDR_EQ(vap->iv_des_bssid, ni->ni_bssid)) 533b4c5a90fSSam Leffler fail |= 0x20; 53468e8e04eSSam Leffler 53568e8e04eSSam Leffler printf(" %c %s", fail ? '-' : '+', ether_sprintf(ni->ni_macaddr)); 53668e8e04eSSam Leffler printf(" %s%c", ether_sprintf(ni->ni_bssid), fail & 0x20 ? '!' : ' '); 53768e8e04eSSam Leffler printf(" %3d%c", 53868e8e04eSSam Leffler ieee80211_chan2ieee(ic, ni->ni_chan), fail & 0x01 ? '!' : ' '); 539b4c5a90fSSam Leffler printf(" %2dM%c", (rate & IEEE80211_RATE_VAL) / 2, 540b4c5a90fSSam Leffler fail & 0x08 ? '!' : ' '); 541b4c5a90fSSam Leffler printf(" %4s%c", 542b4c5a90fSSam Leffler (ni->ni_capinfo & IEEE80211_CAPINFO_ESS) ? "ess" : 543b4c5a90fSSam Leffler (ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) ? "ibss" : 544b4c5a90fSSam Leffler "????", 545b4c5a90fSSam Leffler fail & 0x02 ? '!' : ' '); 546b4c5a90fSSam Leffler printf(" %3s%c ", 54768e8e04eSSam Leffler (ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) ? "wep" : "no", 548b4c5a90fSSam Leffler fail & 0x04 ? '!' : ' '); 549b4c5a90fSSam Leffler ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 550b4c5a90fSSam Leffler printf("%s\n", fail & 0x10 ? "!" : ""); 551b4c5a90fSSam Leffler } 55268e8e04eSSam Leffler #endif /* IEEE80211_DEBUG */ 5538a1b9b6aSSam Leffler 554adad5b45SAdrian Chadd 555adad5b45SAdrian Chadd int 556adad5b45SAdrian Chadd ieee80211_ibss_merge_check(struct ieee80211_node *ni) 557adad5b45SAdrian Chadd { 558adad5b45SAdrian Chadd struct ieee80211vap *vap = ni->ni_vap; 559adad5b45SAdrian Chadd 560adad5b45SAdrian Chadd if (ni == vap->iv_bss || 561adad5b45SAdrian Chadd IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid)) { 562adad5b45SAdrian Chadd /* unchanged, nothing to do */ 563adad5b45SAdrian Chadd return 0; 564adad5b45SAdrian Chadd } 565adad5b45SAdrian Chadd 566adad5b45SAdrian Chadd if (!check_bss(vap, ni)) { 567adad5b45SAdrian Chadd /* capabilities mismatch */ 568adad5b45SAdrian Chadd IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC, 569adad5b45SAdrian Chadd "%s: merge failed, capabilities mismatch\n", __func__); 570adad5b45SAdrian Chadd #ifdef IEEE80211_DEBUG 571adad5b45SAdrian Chadd if (ieee80211_msg_assoc(vap)) 572adad5b45SAdrian Chadd check_bss_debug(vap, ni); 573adad5b45SAdrian Chadd #endif 574adad5b45SAdrian Chadd vap->iv_stats.is_ibss_capmismatch++; 575adad5b45SAdrian Chadd return 0; 576adad5b45SAdrian Chadd } 577adad5b45SAdrian Chadd 578adad5b45SAdrian Chadd return 1; 579adad5b45SAdrian Chadd } 580adad5b45SAdrian Chadd 581750d6d0cSSam Leffler /* 582172b009aSAdrian Chadd * Check if the given node should populate the node table. 583172b009aSAdrian Chadd * 584172b009aSAdrian Chadd * We need to be in "see all beacons for all ssids" mode in order 585172b009aSAdrian Chadd * to do IBSS merges, however this means we will populate nodes for 586172b009aSAdrian Chadd * /all/ IBSS SSIDs, versus just the one we care about. 587172b009aSAdrian Chadd * 588172b009aSAdrian Chadd * So this check ensures the node can actually belong to our IBSS 589172b009aSAdrian Chadd * configuration. For now it simply checks the SSID. 590172b009aSAdrian Chadd */ 591172b009aSAdrian Chadd int 592172b009aSAdrian Chadd ieee80211_ibss_node_check_new(struct ieee80211_node *ni, 593172b009aSAdrian Chadd const struct ieee80211_scanparams *scan) 594172b009aSAdrian Chadd { 595172b009aSAdrian Chadd struct ieee80211vap *vap = ni->ni_vap; 596172b009aSAdrian Chadd int i; 597172b009aSAdrian Chadd 598172b009aSAdrian Chadd /* 599172b009aSAdrian Chadd * If we have no SSID and no scan SSID, return OK. 600172b009aSAdrian Chadd */ 601172b009aSAdrian Chadd if (vap->iv_des_nssid == 0 && scan->ssid == NULL) 602172b009aSAdrian Chadd goto ok; 603172b009aSAdrian Chadd 604172b009aSAdrian Chadd /* 605172b009aSAdrian Chadd * If we have one of (SSID, scan SSID) then return error. 606172b009aSAdrian Chadd */ 607172b009aSAdrian Chadd if (!! (vap->iv_des_nssid == 0) != !! (scan->ssid == NULL)) 608172b009aSAdrian Chadd goto mismatch; 609172b009aSAdrian Chadd 610172b009aSAdrian Chadd /* 611172b009aSAdrian Chadd * Double-check - we need scan SSID. 612172b009aSAdrian Chadd */ 613172b009aSAdrian Chadd if (scan->ssid == NULL) 614172b009aSAdrian Chadd goto mismatch; 615172b009aSAdrian Chadd 616172b009aSAdrian Chadd /* 617172b009aSAdrian Chadd * Check if the scan SSID matches the SSID list for the VAP. 618172b009aSAdrian Chadd */ 619172b009aSAdrian Chadd for (i = 0; i < vap->iv_des_nssid; i++) { 620172b009aSAdrian Chadd 621172b009aSAdrian Chadd /* Sanity length check */ 622172b009aSAdrian Chadd if (vap->iv_des_ssid[i].len != scan->ssid[1]) 623172b009aSAdrian Chadd continue; 624172b009aSAdrian Chadd 625172b009aSAdrian Chadd /* Note: SSID in the scan entry is the IE format */ 626172b009aSAdrian Chadd if (memcmp(vap->iv_des_ssid[i].ssid, scan->ssid + 2, 627172b009aSAdrian Chadd vap->iv_des_ssid[i].len) == 0) 628172b009aSAdrian Chadd goto ok; 629172b009aSAdrian Chadd } 630172b009aSAdrian Chadd 631172b009aSAdrian Chadd mismatch: 632172b009aSAdrian Chadd return (0); 633172b009aSAdrian Chadd ok: 634172b009aSAdrian Chadd return (1); 635172b009aSAdrian Chadd } 636172b009aSAdrian Chadd 637172b009aSAdrian Chadd /* 6388a1b9b6aSSam Leffler * Handle 802.11 ad hoc network merge. The 6398a1b9b6aSSam Leffler * convention, set by the Wireless Ethernet Compatibility Alliance 6408a1b9b6aSSam Leffler * (WECA), is that an 802.11 station will change its BSSID to match 6418a1b9b6aSSam Leffler * the "oldest" 802.11 ad hoc network, on the same channel, that 6428a1b9b6aSSam Leffler * has the station's desired SSID. The "oldest" 802.11 network 6438a1b9b6aSSam Leffler * sends beacons with the greatest TSF timestamp. 6448a1b9b6aSSam Leffler * 6458a1b9b6aSSam Leffler * The caller is assumed to validate TSF's before attempting a merge. 6468a1b9b6aSSam Leffler * 6478a1b9b6aSSam Leffler * Return !0 if the BSSID changed, 0 otherwise. 648750d6d0cSSam Leffler */ 6498a1b9b6aSSam Leffler int 650641b4d0bSSam Leffler ieee80211_ibss_merge(struct ieee80211_node *ni) 6518a1b9b6aSSam Leffler { 652b032f27cSSam Leffler #ifdef IEEE80211_DEBUG 653c89e0d15SBjoern A. Zeeb struct ieee80211vap *vap = ni->ni_vap; 654641b4d0bSSam Leffler struct ieee80211com *ic = ni->ni_ic; 655b032f27cSSam Leffler #endif 6568a1b9b6aSSam Leffler 657adad5b45SAdrian Chadd if (! ieee80211_ibss_merge_check(ni)) 6588a1b9b6aSSam Leffler return 0; 659adad5b45SAdrian Chadd 660b032f27cSSam Leffler IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC, 6618a1b9b6aSSam Leffler "%s: new bssid %s: %s preamble, %s slot time%s\n", __func__, 6628a1b9b6aSSam Leffler ether_sprintf(ni->ni_bssid), 6638a1b9b6aSSam Leffler ic->ic_flags&IEEE80211_F_SHPREAMBLE ? "short" : "long", 6648a1b9b6aSSam Leffler ic->ic_flags&IEEE80211_F_SHSLOT ? "short" : "long", 6658a1b9b6aSSam Leffler ic->ic_flags&IEEE80211_F_USEPROT ? ", protection" : "" 6668a1b9b6aSSam Leffler ); 66768e8e04eSSam Leffler return ieee80211_sta_join1(ieee80211_ref_node(ni)); 6688a1b9b6aSSam Leffler } 6698a1b9b6aSSam Leffler 6708a1b9b6aSSam Leffler /* 671b032f27cSSam Leffler * Calculate HT channel promotion flags for all vaps. 672b032f27cSSam Leffler * This assumes ni_chan have been setup for each vap. 673b032f27cSSam Leffler */ 674b032f27cSSam Leffler static int 675b032f27cSSam Leffler gethtadjustflags(struct ieee80211com *ic) 676b032f27cSSam Leffler { 677b032f27cSSam Leffler struct ieee80211vap *vap; 678b032f27cSSam Leffler int flags; 679b032f27cSSam Leffler 680b032f27cSSam Leffler flags = 0; 681b032f27cSSam Leffler /* XXX locking */ 682b032f27cSSam Leffler TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 683b032f27cSSam Leffler if (vap->iv_state < IEEE80211_S_RUN) 684b032f27cSSam Leffler continue; 685b032f27cSSam Leffler switch (vap->iv_opmode) { 686b032f27cSSam Leffler case IEEE80211_M_WDS: 687b032f27cSSam Leffler case IEEE80211_M_STA: 688b032f27cSSam Leffler case IEEE80211_M_AHDEMO: 689b032f27cSSam Leffler case IEEE80211_M_HOSTAP: 690b032f27cSSam Leffler case IEEE80211_M_IBSS: 69159aa14a9SRui Paulo case IEEE80211_M_MBSS: 692b032f27cSSam Leffler flags |= ieee80211_htchanflags(vap->iv_bss->ni_chan); 693b032f27cSSam Leffler break; 694b032f27cSSam Leffler default: 695b032f27cSSam Leffler break; 696b032f27cSSam Leffler } 697b032f27cSSam Leffler } 698b032f27cSSam Leffler return flags; 699b032f27cSSam Leffler } 700b032f27cSSam Leffler 701b032f27cSSam Leffler /* 702b032f27cSSam Leffler * Check if the current channel needs to change based on whether 7035d44f8c0SSam Leffler * any vap's are using HT20/HT40. This is used to sync the state 7045d44f8c0SSam Leffler * of ic_curchan after a channel width change on a running vap. 7051b6167d2SSam Leffler */ 7061b6167d2SSam Leffler void 707b032f27cSSam Leffler ieee80211_sync_curchan(struct ieee80211com *ic) 7081b6167d2SSam Leffler { 709b032f27cSSam Leffler struct ieee80211_channel *c; 710b032f27cSSam Leffler 711b032f27cSSam Leffler c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, gethtadjustflags(ic)); 712b032f27cSSam Leffler if (c != ic->ic_curchan) { 713b032f27cSSam Leffler ic->ic_curchan = c; 714b032f27cSSam Leffler ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan); 71526d39e2cSSam Leffler ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan); 7165efea30fSAndrew Thompson IEEE80211_UNLOCK(ic); 717b032f27cSSam Leffler ic->ic_set_channel(ic); 7185463c4a4SSam Leffler ieee80211_radiotap_chan_change(ic); 7195efea30fSAndrew Thompson IEEE80211_LOCK(ic); 720b032f27cSSam Leffler } 721b032f27cSSam Leffler } 722b032f27cSSam Leffler 723b032f27cSSam Leffler /* 7245efea30fSAndrew Thompson * Setup the current channel. The request channel may be 725b032f27cSSam Leffler * promoted if other vap's are operating with HT20/HT40. 726b032f27cSSam Leffler */ 727b032f27cSSam Leffler void 7285efea30fSAndrew Thompson ieee80211_setupcurchan(struct ieee80211com *ic, struct ieee80211_channel *c) 729b032f27cSSam Leffler { 730b032f27cSSam Leffler if (ic->ic_htcaps & IEEE80211_HTC_HT) { 731b032f27cSSam Leffler int flags = gethtadjustflags(ic); 732b032f27cSSam Leffler /* 733b032f27cSSam Leffler * Check for channel promotion required to support the 734b032f27cSSam Leffler * set of running vap's. This assumes we are called 735b032f27cSSam Leffler * after ni_chan is setup for each vap. 736b032f27cSSam Leffler */ 7372bfc8a91SSam Leffler /* NB: this assumes IEEE80211_FHT_USEHT40 > IEEE80211_FHT_HT */ 738b032f27cSSam Leffler if (flags > ieee80211_htchanflags(c)) 739b032f27cSSam Leffler c = ieee80211_ht_adjust_channel(ic, c, flags); 740b032f27cSSam Leffler } 741b032f27cSSam Leffler ic->ic_bsschan = ic->ic_curchan = c; 7421b6167d2SSam Leffler ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan); 74326d39e2cSSam Leffler ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan); 7445efea30fSAndrew Thompson } 7455efea30fSAndrew Thompson 7465efea30fSAndrew Thompson /* 7475efea30fSAndrew Thompson * Change the current channel. The channel change is guaranteed to have 7485efea30fSAndrew Thompson * happened before the next state change. 7495efea30fSAndrew Thompson */ 7505efea30fSAndrew Thompson void 7515efea30fSAndrew Thompson ieee80211_setcurchan(struct ieee80211com *ic, struct ieee80211_channel *c) 7525efea30fSAndrew Thompson { 7535efea30fSAndrew Thompson ieee80211_setupcurchan(ic, c); 7545efea30fSAndrew Thompson ieee80211_runtask(ic, &ic->ic_chan_task); 7551b6167d2SSam Leffler } 7561b6167d2SSam Leffler 757b94299c4SAdrian Chadd void 758b94299c4SAdrian Chadd ieee80211_update_chw(struct ieee80211com *ic) 759b94299c4SAdrian Chadd { 760b94299c4SAdrian Chadd 761b94299c4SAdrian Chadd ieee80211_setupcurchan(ic, ic->ic_curchan); 762b94299c4SAdrian Chadd ieee80211_runtask(ic, &ic->ic_chw_task); 763b94299c4SAdrian Chadd } 764b94299c4SAdrian Chadd 7651b6167d2SSam Leffler /* 7668a1b9b6aSSam Leffler * Join the specified IBSS/BSS network. The node is assumed to 7678a1b9b6aSSam Leffler * be passed in with a held reference. 7688a1b9b6aSSam Leffler */ 76968e8e04eSSam Leffler static int 77068e8e04eSSam Leffler ieee80211_sta_join1(struct ieee80211_node *selbs) 7718a1b9b6aSSam Leffler { 772b032f27cSSam Leffler struct ieee80211vap *vap = selbs->ni_vap; 77368e8e04eSSam Leffler struct ieee80211com *ic = selbs->ni_ic; 7748a1b9b6aSSam Leffler struct ieee80211_node *obss; 77568e8e04eSSam Leffler int canreassoc; 7768a1b9b6aSSam Leffler 7778a1b9b6aSSam Leffler /* 7788a1b9b6aSSam Leffler * Committed to selbs, setup state. 7798a1b9b6aSSam Leffler */ 780b032f27cSSam Leffler obss = vap->iv_bss; 78168e8e04eSSam Leffler /* 78268e8e04eSSam Leffler * Check if old+new node have the same address in which 78368e8e04eSSam Leffler * case we can reassociate when operating in sta mode. 78468e8e04eSSam Leffler */ 78568e8e04eSSam Leffler canreassoc = (obss != NULL && 786b032f27cSSam Leffler vap->iv_state == IEEE80211_S_RUN && 78768e8e04eSSam Leffler IEEE80211_ADDR_EQ(obss->ni_macaddr, selbs->ni_macaddr)); 788b032f27cSSam Leffler vap->iv_bss = selbs; /* NB: caller assumed to bump refcnt */ 7891fd2349dSSam Leffler if (obss != NULL) { 7908a055831SAdrian Chadd struct ieee80211_node_table *nt = obss->ni_table; 7918a055831SAdrian Chadd 7921fd2349dSSam Leffler copy_bss(selbs, obss); 79347a7b0faSSam Leffler ieee80211_node_decref(obss); /* iv_bss reference */ 7948a055831SAdrian Chadd 7958a055831SAdrian Chadd IEEE80211_NODE_LOCK(nt); 7968a055831SAdrian Chadd node_reclaim(nt, obss); /* station table reference */ 7978a055831SAdrian Chadd IEEE80211_NODE_UNLOCK(nt); 7988a055831SAdrian Chadd 799b032f27cSSam Leffler obss = NULL; /* NB: guard against later use */ 8001fd2349dSSam Leffler } 80179edaebfSSam Leffler 80279edaebfSSam Leffler /* 80379edaebfSSam Leffler * Delete unusable rates; we've already checked 80479edaebfSSam Leffler * that the negotiated rate set is acceptable. 80579edaebfSSam Leffler */ 806b032f27cSSam Leffler ieee80211_fix_rate(vap->iv_bss, &vap->iv_bss->ni_rates, 80770e28b9aSSam Leffler IEEE80211_F_DODEL | IEEE80211_F_JOIN); 80879edaebfSSam Leffler 809b032f27cSSam Leffler ieee80211_setcurchan(ic, selbs->ni_chan); 8108a1b9b6aSSam Leffler /* 8118a1b9b6aSSam Leffler * Set the erp state (mostly the slot time) to deal with 8128a1b9b6aSSam Leffler * the auto-select case; this should be redundant if the 8138a1b9b6aSSam Leffler * mode is locked. 8148a1b9b6aSSam Leffler */ 8158a1b9b6aSSam Leffler ieee80211_reset_erp(ic); 816b032f27cSSam Leffler ieee80211_wme_initparams(vap); 817acc4f7f5SSam Leffler 818b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_STA) { 81968e8e04eSSam Leffler if (canreassoc) { 82068e8e04eSSam Leffler /* Reassociate */ 821b032f27cSSam Leffler ieee80211_new_state(vap, IEEE80211_S_ASSOC, 1); 82268e8e04eSSam Leffler } else { 82368e8e04eSSam Leffler /* 82468e8e04eSSam Leffler * Act as if we received a DEAUTH frame in case we 82568e8e04eSSam Leffler * are invoked from the RUN state. This will cause 82668e8e04eSSam Leffler * us to try to re-authenticate if we are operating 82768e8e04eSSam Leffler * as a station. 82868e8e04eSSam Leffler */ 829b032f27cSSam Leffler ieee80211_new_state(vap, IEEE80211_S_AUTH, 83068e8e04eSSam Leffler IEEE80211_FC0_SUBTYPE_DEAUTH); 83168e8e04eSSam Leffler } 83268e8e04eSSam Leffler } else 833b032f27cSSam Leffler ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 8348a1b9b6aSSam Leffler return 1; 8358a1b9b6aSSam Leffler } 8368a1b9b6aSSam Leffler 83768e8e04eSSam Leffler int 83810959256SSam Leffler ieee80211_sta_join(struct ieee80211vap *vap, struct ieee80211_channel *chan, 83968e8e04eSSam Leffler const struct ieee80211_scan_entry *se) 84068e8e04eSSam Leffler { 841b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 84268e8e04eSSam Leffler struct ieee80211_node *ni; 84368e8e04eSSam Leffler 844b032f27cSSam Leffler ni = ieee80211_alloc_node(&ic->ic_sta, vap, se->se_macaddr); 84568e8e04eSSam Leffler if (ni == NULL) { 84668e8e04eSSam Leffler /* XXX msg */ 84768e8e04eSSam Leffler return 0; 84868e8e04eSSam Leffler } 849d71a1f7aSAdrian Chadd 85068e8e04eSSam Leffler /* 85168e8e04eSSam Leffler * Expand scan state into node's format. 85268e8e04eSSam Leffler * XXX may not need all this stuff 85368e8e04eSSam Leffler */ 85468e8e04eSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, se->se_bssid); 85568e8e04eSSam Leffler ni->ni_esslen = se->se_ssid[1]; 85668e8e04eSSam Leffler memcpy(ni->ni_essid, se->se_ssid+2, ni->ni_esslen); 85768e8e04eSSam Leffler ni->ni_tstamp.tsf = se->se_tstamp.tsf; 85868e8e04eSSam Leffler ni->ni_intval = se->se_intval; 85968e8e04eSSam Leffler ni->ni_capinfo = se->se_capinfo; 86010959256SSam Leffler ni->ni_chan = chan; 86168e8e04eSSam Leffler ni->ni_timoff = se->se_timoff; 86268e8e04eSSam Leffler ni->ni_fhdwell = se->se_fhdwell; 86368e8e04eSSam Leffler ni->ni_fhindex = se->se_fhindex; 86468e8e04eSSam Leffler ni->ni_erp = se->se_erp; 865b032f27cSSam Leffler IEEE80211_RSSI_LPF(ni->ni_avgrssi, se->se_rssi); 86668e8e04eSSam Leffler ni->ni_noise = se->se_noise; 8676ca74c40SSam Leffler if (vap->iv_opmode == IEEE80211_M_STA) { 8686ca74c40SSam Leffler /* NB: only infrastructure mode requires an associd */ 8691b999d64SSam Leffler ni->ni_flags |= IEEE80211_NODE_ASSOCID; 8706ca74c40SSam Leffler } 87168e8e04eSSam Leffler 872b032f27cSSam Leffler if (ieee80211_ies_init(&ni->ni_ies, se->se_ies.data, se->se_ies.len)) { 873b032f27cSSam Leffler ieee80211_ies_expand(&ni->ni_ies); 874616190d0SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 875b032f27cSSam Leffler if (ni->ni_ies.ath_ie != NULL) 876b032f27cSSam Leffler ieee80211_parse_ath(ni, ni->ni_ies.ath_ie); 877616190d0SSam Leffler #endif 878b032f27cSSam Leffler if (ni->ni_ies.htcap_ie != NULL) 879b032f27cSSam Leffler ieee80211_parse_htcap(ni, ni->ni_ies.htcap_ie); 880b032f27cSSam Leffler if (ni->ni_ies.htinfo_ie != NULL) 881b032f27cSSam Leffler ieee80211_parse_htinfo(ni, ni->ni_ies.htinfo_ie); 88259aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 88359aa14a9SRui Paulo if (ni->ni_ies.meshid_ie != NULL) 88459aa14a9SRui Paulo ieee80211_parse_meshid(ni, ni->ni_ies.meshid_ie); 88559aa14a9SRui Paulo #endif 88610ad9a77SSam Leffler #ifdef IEEE80211_SUPPORT_TDMA 88710ad9a77SSam Leffler if (ni->ni_ies.tdma_ie != NULL) 88810ad9a77SSam Leffler ieee80211_parse_tdma(ni, ni->ni_ies.tdma_ie); 88910ad9a77SSam Leffler #endif 890b032f27cSSam Leffler } 891b032f27cSSam Leffler 892b032f27cSSam Leffler vap->iv_dtim_period = se->se_dtimperiod; 893b032f27cSSam Leffler vap->iv_dtim_count = 0; 89468e8e04eSSam Leffler 89568e8e04eSSam Leffler /* NB: must be after ni_chan is setup */ 89668e8e04eSSam Leffler ieee80211_setup_rates(ni, se->se_rates, se->se_xrates, 89768e8e04eSSam Leffler IEEE80211_F_DOSORT); 898dfcd1f4dSSam Leffler if (ieee80211_iserp_rateset(&ni->ni_rates)) 899dfcd1f4dSSam Leffler ni->ni_flags |= IEEE80211_NODE_ERP; 900d71a1f7aSAdrian Chadd 901d71a1f7aSAdrian Chadd /* 902d71a1f7aSAdrian Chadd * Setup HT state for this node if it's available, otherwise 903d71a1f7aSAdrian Chadd * non-STA modes won't pick this state up. 904d71a1f7aSAdrian Chadd * 905d71a1f7aSAdrian Chadd * For IBSS and related modes that don't go through an 906d71a1f7aSAdrian Chadd * association request/response, the only appropriate place 907d71a1f7aSAdrian Chadd * to setup the HT state is here. 908d71a1f7aSAdrian Chadd */ 909d71a1f7aSAdrian Chadd if (ni->ni_ies.htinfo_ie != NULL && 910d71a1f7aSAdrian Chadd ni->ni_ies.htcap_ie != NULL && 911d71a1f7aSAdrian Chadd vap->iv_flags_ht & IEEE80211_FHT_HT) { 912d71a1f7aSAdrian Chadd ieee80211_ht_node_init(ni); 913d71a1f7aSAdrian Chadd ieee80211_ht_updateparams(ni, 914d71a1f7aSAdrian Chadd ni->ni_ies.htcap_ie, 915d71a1f7aSAdrian Chadd ni->ni_ies.htinfo_ie); 916d71a1f7aSAdrian Chadd ieee80211_setup_htrates(ni, ni->ni_ies.htcap_ie, 917d71a1f7aSAdrian Chadd IEEE80211_F_JOIN | IEEE80211_F_DOBRS); 918d71a1f7aSAdrian Chadd ieee80211_setup_basic_htrates(ni, ni->ni_ies.htinfo_ie); 919d71a1f7aSAdrian Chadd } 920d71a1f7aSAdrian Chadd /* XXX else check for ath FF? */ 921d71a1f7aSAdrian Chadd /* XXX QoS? Difficult given that WME config is specific to a master */ 922d71a1f7aSAdrian Chadd 923d77148fbSSam Leffler ieee80211_node_setuptxparms(ni); 92449d2c137SBernhard Schmidt ieee80211_ratectl_node_init(ni); 92568e8e04eSSam Leffler 92668e8e04eSSam Leffler return ieee80211_sta_join1(ieee80211_ref_node(ni)); 92768e8e04eSSam Leffler } 92868e8e04eSSam Leffler 9298a1b9b6aSSam Leffler /* 9308a1b9b6aSSam Leffler * Leave the specified IBSS/BSS network. The node is assumed to 9318a1b9b6aSSam Leffler * be passed in with a held reference. 9328a1b9b6aSSam Leffler */ 9338a1b9b6aSSam Leffler void 934b032f27cSSam Leffler ieee80211_sta_leave(struct ieee80211_node *ni) 9358a1b9b6aSSam Leffler { 936b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 937b032f27cSSam Leffler 9388a1b9b6aSSam Leffler ic->ic_node_cleanup(ni); 939b032f27cSSam Leffler ieee80211_notify_node_leave(ni); 940b032f27cSSam Leffler } 941b032f27cSSam Leffler 942b032f27cSSam Leffler /* 943b032f27cSSam Leffler * Send a deauthenticate frame and drop the station. 944b032f27cSSam Leffler */ 945b032f27cSSam Leffler void 946b032f27cSSam Leffler ieee80211_node_deauth(struct ieee80211_node *ni, int reason) 947b032f27cSSam Leffler { 948eca3b4fcSAdrian Chadd /* NB: bump the refcnt to be sure temporary nodes are not reclaimed */ 949b032f27cSSam Leffler ieee80211_ref_node(ni); 950b032f27cSSam Leffler if (ni->ni_associd != 0) 951b032f27cSSam Leffler IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH, reason); 952b032f27cSSam Leffler ieee80211_node_leave(ni); 953b032f27cSSam Leffler ieee80211_free_node(ni); 9548a1b9b6aSSam Leffler } 9558a1b9b6aSSam Leffler 9561a1e1d21SSam Leffler static struct ieee80211_node * 95738c208f8SSam Leffler node_alloc(struct ieee80211vap *vap, const uint8_t macaddr[IEEE80211_ADDR_LEN]) 9581a1e1d21SSam Leffler { 959410ca74bSSam Leffler struct ieee80211_node *ni; 9608a1b9b6aSSam Leffler 961b9b53389SAdrian Chadd ni = (struct ieee80211_node *) IEEE80211_MALLOC(sizeof(struct ieee80211_node), 962b9b53389SAdrian Chadd M_80211_NODE, IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 963410ca74bSSam Leffler return ni; 9641a1e1d21SSam Leffler } 9651a1e1d21SSam Leffler 9668a1b9b6aSSam Leffler /* 967b032f27cSSam Leffler * Initialize an ie blob with the specified data. If previous 968b032f27cSSam Leffler * data exists re-use the data block. As a side effect we clear 969b032f27cSSam Leffler * all references to specific ie's; the caller is required to 970b032f27cSSam Leffler * recalculate them. 971b032f27cSSam Leffler */ 972b032f27cSSam Leffler int 973b032f27cSSam Leffler ieee80211_ies_init(struct ieee80211_ies *ies, const uint8_t *data, int len) 974b032f27cSSam Leffler { 975b032f27cSSam Leffler /* NB: assumes data+len are the last fields */ 976b032f27cSSam Leffler memset(ies, 0, offsetof(struct ieee80211_ies, data)); 977b032f27cSSam Leffler if (ies->data != NULL && ies->len != len) { 978b032f27cSSam Leffler /* data size changed */ 979b9b53389SAdrian Chadd IEEE80211_FREE(ies->data, M_80211_NODE_IE); 980b032f27cSSam Leffler ies->data = NULL; 981b032f27cSSam Leffler } 982b032f27cSSam Leffler if (ies->data == NULL) { 983b9b53389SAdrian Chadd ies->data = (uint8_t *) IEEE80211_MALLOC(len, M_80211_NODE_IE, 984b9b53389SAdrian Chadd IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 985b032f27cSSam Leffler if (ies->data == NULL) { 986b032f27cSSam Leffler ies->len = 0; 987b032f27cSSam Leffler /* NB: pointers have already been zero'd above */ 988b032f27cSSam Leffler return 0; 989b032f27cSSam Leffler } 990b032f27cSSam Leffler } 991b032f27cSSam Leffler memcpy(ies->data, data, len); 992b032f27cSSam Leffler ies->len = len; 993b032f27cSSam Leffler return 1; 994b032f27cSSam Leffler } 995b032f27cSSam Leffler 996b032f27cSSam Leffler /* 997b032f27cSSam Leffler * Reclaim storage for an ie blob. 998b032f27cSSam Leffler */ 999b032f27cSSam Leffler void 1000b032f27cSSam Leffler ieee80211_ies_cleanup(struct ieee80211_ies *ies) 1001b032f27cSSam Leffler { 1002b032f27cSSam Leffler if (ies->data != NULL) 1003b9b53389SAdrian Chadd IEEE80211_FREE(ies->data, M_80211_NODE_IE); 1004b032f27cSSam Leffler } 1005b032f27cSSam Leffler 1006b032f27cSSam Leffler /* 1007b032f27cSSam Leffler * Expand an ie blob data contents and to fillin individual 1008b032f27cSSam Leffler * ie pointers. The data blob is assumed to be well-formed; 1009b032f27cSSam Leffler * we don't do any validity checking of ie lengths. 1010b032f27cSSam Leffler */ 1011b032f27cSSam Leffler void 1012b032f27cSSam Leffler ieee80211_ies_expand(struct ieee80211_ies *ies) 1013b032f27cSSam Leffler { 1014b032f27cSSam Leffler uint8_t *ie; 1015b032f27cSSam Leffler int ielen; 1016b032f27cSSam Leffler 1017b032f27cSSam Leffler ie = ies->data; 1018b032f27cSSam Leffler ielen = ies->len; 1019b032f27cSSam Leffler while (ielen > 0) { 1020b032f27cSSam Leffler switch (ie[0]) { 1021b032f27cSSam Leffler case IEEE80211_ELEMID_VENDOR: 1022b032f27cSSam Leffler if (iswpaoui(ie)) 1023b032f27cSSam Leffler ies->wpa_ie = ie; 1024b032f27cSSam Leffler else if (iswmeoui(ie)) 1025b032f27cSSam Leffler ies->wme_ie = ie; 1026616190d0SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 1027b032f27cSSam Leffler else if (isatherosoui(ie)) 1028b032f27cSSam Leffler ies->ath_ie = ie; 1029616190d0SSam Leffler #endif 103010ad9a77SSam Leffler #ifdef IEEE80211_SUPPORT_TDMA 103110ad9a77SSam Leffler else if (istdmaoui(ie)) 103210ad9a77SSam Leffler ies->tdma_ie = ie; 103310ad9a77SSam Leffler #endif 1034b032f27cSSam Leffler break; 1035b032f27cSSam Leffler case IEEE80211_ELEMID_RSN: 1036b032f27cSSam Leffler ies->rsn_ie = ie; 1037b032f27cSSam Leffler break; 1038b032f27cSSam Leffler case IEEE80211_ELEMID_HTCAP: 1039b032f27cSSam Leffler ies->htcap_ie = ie; 1040b032f27cSSam Leffler break; 1041d71a1f7aSAdrian Chadd case IEEE80211_ELEMID_HTINFO: 1042d71a1f7aSAdrian Chadd ies->htinfo_ie = ie; 1043d71a1f7aSAdrian Chadd break; 104459aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 104559aa14a9SRui Paulo case IEEE80211_ELEMID_MESHID: 104659aa14a9SRui Paulo ies->meshid_ie = ie; 104759aa14a9SRui Paulo break; 104859aa14a9SRui Paulo #endif 1049b032f27cSSam Leffler } 1050b032f27cSSam Leffler ielen -= 2 + ie[1]; 1051b032f27cSSam Leffler ie += 2 + ie[1]; 1052b032f27cSSam Leffler } 1053b032f27cSSam Leffler } 1054b032f27cSSam Leffler 1055b032f27cSSam Leffler /* 10568a1b9b6aSSam Leffler * Reclaim any resources in a node and reset any critical 10578a1b9b6aSSam Leffler * state. Typically nodes are free'd immediately after, 10588a1b9b6aSSam Leffler * but in some cases the storage may be reused so we need 10598a1b9b6aSSam Leffler * to insure consistent state (should probably fix that). 10608a1b9b6aSSam Leffler */ 10611a1e1d21SSam Leffler static void 10628a1b9b6aSSam Leffler node_cleanup(struct ieee80211_node *ni) 10631a1e1d21SSam Leffler { 1064b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 10655b16c28cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 106668e8e04eSSam Leffler int i; 10678a1b9b6aSSam Leffler 10688a1b9b6aSSam Leffler /* NB: preserve ni_table */ 10698a1b9b6aSSam Leffler if (ni->ni_flags & IEEE80211_NODE_PWR_MGT) { 1070b032f27cSSam Leffler if (vap->iv_opmode != IEEE80211_M_STA) 1071b032f27cSSam Leffler vap->iv_ps_sta--; 10728a1b9b6aSSam Leffler ni->ni_flags &= ~IEEE80211_NODE_PWR_MGT; 1073b032f27cSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni, 1074b032f27cSSam Leffler "power save mode off, %u sta's in ps mode", vap->iv_ps_sta); 10758a1b9b6aSSam Leffler } 1076ebdda46cSSam Leffler /* 10771b6167d2SSam Leffler * Cleanup any HT-related state. 10781b6167d2SSam Leffler */ 10791b6167d2SSam Leffler if (ni->ni_flags & IEEE80211_NODE_HT) 10801b6167d2SSam Leffler ieee80211_ht_node_cleanup(ni); 1081339ccfb3SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 10821c7b0c84SAdrian Chadd /* Always do FF node cleanup; for A-MSDU */ 1083339ccfb3SSam Leffler ieee80211_ff_node_cleanup(ni); 1084339ccfb3SSam Leffler #endif 108559aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 108659aa14a9SRui Paulo /* 108759aa14a9SRui Paulo * Cleanup any mesh-related state. 108859aa14a9SRui Paulo */ 108959aa14a9SRui Paulo if (vap->iv_opmode == IEEE80211_M_MBSS) 109059aa14a9SRui Paulo ieee80211_mesh_node_cleanup(ni); 109159aa14a9SRui Paulo #endif 10921b6167d2SSam Leffler /* 10935b16c28cSSam Leffler * Clear any staging queue entries. 10945b16c28cSSam Leffler */ 10955b16c28cSSam Leffler ieee80211_ageq_drain_node(&ic->ic_stageq, ni); 10965b16c28cSSam Leffler 10975b16c28cSSam Leffler /* 1098ebdda46cSSam Leffler * Clear AREF flag that marks the authorization refcnt bump 1099ebdda46cSSam Leffler * has happened. This is probably not needed as the node 1100ebdda46cSSam Leffler * should always be removed from the table so not found but 1101ebdda46cSSam Leffler * do it just in case. 11021b999d64SSam Leffler * Likewise clear the ASSOCID flag as these flags are intended 11031b999d64SSam Leffler * to be managed in tandem. 1104ebdda46cSSam Leffler */ 11051b999d64SSam Leffler ni->ni_flags &= ~(IEEE80211_NODE_AREF | IEEE80211_NODE_ASSOCID); 11068a1b9b6aSSam Leffler 11078a1b9b6aSSam Leffler /* 11088a1b9b6aSSam Leffler * Drain power save queue and, if needed, clear TIM. 11098a1b9b6aSSam Leffler */ 111063092fceSSam Leffler if (ieee80211_node_psq_drain(ni) != 0 && vap->iv_set_tim != NULL) 1111b032f27cSSam Leffler vap->iv_set_tim(ni, 0); 11128a1b9b6aSSam Leffler 11138a1b9b6aSSam Leffler ni->ni_associd = 0; 11148a1b9b6aSSam Leffler if (ni->ni_challenge != NULL) { 1115b9b53389SAdrian Chadd IEEE80211_FREE(ni->ni_challenge, M_80211_NODE); 11168a1b9b6aSSam Leffler ni->ni_challenge = NULL; 11178a1b9b6aSSam Leffler } 11188a1b9b6aSSam Leffler /* 11198a1b9b6aSSam Leffler * Preserve SSID, WPA, and WME ie's so the bss node is 11208a1b9b6aSSam Leffler * reusable during a re-auth/re-assoc state transition. 11218a1b9b6aSSam Leffler * If we remove these data they will not be recreated 11228a1b9b6aSSam Leffler * because they come from a probe-response or beacon frame 11238a1b9b6aSSam Leffler * which cannot be expected prior to the association-response. 11248a1b9b6aSSam Leffler * This should not be an issue when operating in other modes 11258a1b9b6aSSam Leffler * as stations leaving always go through a full state transition 11268a1b9b6aSSam Leffler * which will rebuild this state. 11278a1b9b6aSSam Leffler * 11288a1b9b6aSSam Leffler * XXX does this leave us open to inheriting old state? 11298a1b9b6aSSam Leffler */ 1130a3e08d6fSRui Paulo for (i = 0; i < nitems(ni->ni_rxfrag); i++) 11318a1b9b6aSSam Leffler if (ni->ni_rxfrag[i] != NULL) { 11328a1b9b6aSSam Leffler m_freem(ni->ni_rxfrag[i]); 11338a1b9b6aSSam Leffler ni->ni_rxfrag[i] = NULL; 11348a1b9b6aSSam Leffler } 1135c1225b52SSam Leffler /* 1136c1225b52SSam Leffler * Must be careful here to remove any key map entry w/o a LOR. 1137c1225b52SSam Leffler */ 1138c1225b52SSam Leffler ieee80211_node_delucastkey(ni); 11398a1b9b6aSSam Leffler } 11408a1b9b6aSSam Leffler 11418a1b9b6aSSam Leffler static void 11428a1b9b6aSSam Leffler node_free(struct ieee80211_node *ni) 11438a1b9b6aSSam Leffler { 11448a1b9b6aSSam Leffler struct ieee80211com *ic = ni->ni_ic; 11458a1b9b6aSSam Leffler 1146b6108616SRui Paulo ieee80211_ratectl_node_deinit(ni); 11478a1b9b6aSSam Leffler ic->ic_node_cleanup(ni); 1148b032f27cSSam Leffler ieee80211_ies_cleanup(&ni->ni_ies); 114963092fceSSam Leffler ieee80211_psq_cleanup(&ni->ni_psq); 1150b9b53389SAdrian Chadd IEEE80211_FREE(ni, M_80211_NODE); 11511a1e1d21SSam Leffler } 11521a1e1d21SSam Leffler 1153b032f27cSSam Leffler static void 1154b032f27cSSam Leffler node_age(struct ieee80211_node *ni) 1155b032f27cSSam Leffler { 1156b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 11575d44f8c0SSam Leffler 1158b032f27cSSam Leffler /* 1159b032f27cSSam Leffler * Age frames on the power save queue. 1160b032f27cSSam Leffler */ 116163092fceSSam Leffler if (ieee80211_node_psq_age(ni) != 0 && 116263092fceSSam Leffler ni->ni_psq.psq_len == 0 && vap->iv_set_tim != NULL) 1163b032f27cSSam Leffler vap->iv_set_tim(ni, 0); 1164b032f27cSSam Leffler /* 1165b032f27cSSam Leffler * Age out HT resources (e.g. frames on the 1166b032f27cSSam Leffler * A-MPDU reorder queues). 1167b032f27cSSam Leffler */ 1168b032f27cSSam Leffler if (ni->ni_associd != 0 && (ni->ni_flags & IEEE80211_NODE_HT)) 1169b032f27cSSam Leffler ieee80211_ht_node_age(ni); 1170b032f27cSSam Leffler } 1171b032f27cSSam Leffler 117268e8e04eSSam Leffler static int8_t 11738a1b9b6aSSam Leffler node_getrssi(const struct ieee80211_node *ni) 1174d1e61976SSam Leffler { 1175b032f27cSSam Leffler uint32_t avgrssi = ni->ni_avgrssi; 1176b032f27cSSam Leffler int32_t rssi; 1177b032f27cSSam Leffler 1178b032f27cSSam Leffler if (avgrssi == IEEE80211_RSSI_DUMMY_MARKER) 1179b032f27cSSam Leffler return 0; 1180b032f27cSSam Leffler rssi = IEEE80211_RSSI_GET(avgrssi); 1181b032f27cSSam Leffler return rssi < 0 ? 0 : rssi > 127 ? 127 : rssi; 1182d1e61976SSam Leffler } 1183d1e61976SSam Leffler 11841a1e1d21SSam Leffler static void 118568e8e04eSSam Leffler node_getsignal(const struct ieee80211_node *ni, int8_t *rssi, int8_t *noise) 118668e8e04eSSam Leffler { 1187b032f27cSSam Leffler *rssi = node_getrssi(ni); 118868e8e04eSSam Leffler *noise = ni->ni_noise; 118968e8e04eSSam Leffler } 119068e8e04eSSam Leffler 119168e8e04eSSam Leffler static void 1192b032f27cSSam Leffler node_getmimoinfo(const struct ieee80211_node *ni, 1193b032f27cSSam Leffler struct ieee80211_mimo_info *info) 1194b032f27cSSam Leffler { 1195864ab114SAdrian Chadd int i; 1196864ab114SAdrian Chadd uint32_t avgrssi; 1197864ab114SAdrian Chadd int32_t rssi; 1198864ab114SAdrian Chadd 1199864ab114SAdrian Chadd bzero(info, sizeof(*info)); 1200864ab114SAdrian Chadd 1201864ab114SAdrian Chadd for (i = 0; i < ni->ni_mimo_chains; i++) { 1202864ab114SAdrian Chadd avgrssi = ni->ni_mimo_rssi_ctl[i]; 1203864ab114SAdrian Chadd if (avgrssi == IEEE80211_RSSI_DUMMY_MARKER) { 120488e428c6SAdrian Chadd info->rssi[i] = 0; 1205864ab114SAdrian Chadd } else { 1206864ab114SAdrian Chadd rssi = IEEE80211_RSSI_GET(avgrssi); 120788e428c6SAdrian Chadd info->rssi[i] = rssi < 0 ? 0 : rssi > 127 ? 127 : rssi; 1208864ab114SAdrian Chadd } 120988e428c6SAdrian Chadd info->noise[i] = ni->ni_mimo_noise_ctl[i]; 121088e428c6SAdrian Chadd } 1211864ab114SAdrian Chadd 121288e428c6SAdrian Chadd /* XXX ext radios? */ 1213864ab114SAdrian Chadd 1214864ab114SAdrian Chadd /* XXX EVM? */ 1215b032f27cSSam Leffler } 1216b032f27cSSam Leffler 1217b032f27cSSam Leffler struct ieee80211_node * 1218b032f27cSSam Leffler ieee80211_alloc_node(struct ieee80211_node_table *nt, 1219b032f27cSSam Leffler struct ieee80211vap *vap, const uint8_t macaddr[IEEE80211_ADDR_LEN]) 12201a1e1d21SSam Leffler { 12218a1b9b6aSSam Leffler struct ieee80211com *ic = nt->nt_ic; 1222b032f27cSSam Leffler struct ieee80211_node *ni; 12231a1e1d21SSam Leffler int hash; 12241a1e1d21SSam Leffler 122538c208f8SSam Leffler ni = ic->ic_node_alloc(vap, macaddr); 1226b032f27cSSam Leffler if (ni == NULL) { 1227b032f27cSSam Leffler vap->iv_stats.is_rx_nodealloc++; 1228b032f27cSSam Leffler return NULL; 1229b032f27cSSam Leffler } 1230b032f27cSSam Leffler 1231b032f27cSSam Leffler IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 123249a15236SSam Leffler "%s %p<%s> in %s table\n", __func__, ni, 12338a1b9b6aSSam Leffler ether_sprintf(macaddr), nt->nt_name); 12348a1b9b6aSSam Leffler 12351a1e1d21SSam Leffler IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr); 123659aa14a9SRui Paulo hash = IEEE80211_NODE_HASH(ic, macaddr); 12378a1b9b6aSSam Leffler ieee80211_node_initref(ni); /* mark referenced */ 12388a1b9b6aSSam Leffler ni->ni_chan = IEEE80211_CHAN_ANYC; 12398a1b9b6aSSam Leffler ni->ni_authmode = IEEE80211_AUTH_OPEN; 12408a1b9b6aSSam Leffler ni->ni_txpower = ic->ic_txpowlimit; /* max power */ 124101a03542SSam Leffler ni->ni_txparms = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1242b032f27cSSam Leffler ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey, IEEE80211_KEYIX_NONE); 1243b032f27cSSam Leffler ni->ni_avgrssi = IEEE80211_RSSI_DUMMY_MARKER; 12442045f699SSam Leffler ni->ni_inact_reload = nt->nt_inact_init; 12452045f699SSam Leffler ni->ni_inact = ni->ni_inact_reload; 124668e8e04eSSam Leffler ni->ni_ath_defkeyix = 0x7fff; 124763092fceSSam Leffler ieee80211_psq_init(&ni->ni_psq, "unknown"); 124859aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 124959aa14a9SRui Paulo if (vap->iv_opmode == IEEE80211_M_MBSS) 125059aa14a9SRui Paulo ieee80211_mesh_node_init(vap, ni); 125159aa14a9SRui Paulo #endif 12528a1b9b6aSSam Leffler IEEE80211_NODE_LOCK(nt); 12538a1b9b6aSSam Leffler TAILQ_INSERT_TAIL(&nt->nt_node, ni, ni_list); 12548a1b9b6aSSam Leffler LIST_INSERT_HEAD(&nt->nt_hash[hash], ni, ni_hash); 12558a1b9b6aSSam Leffler ni->ni_table = nt; 1256b032f27cSSam Leffler ni->ni_vap = vap; 12578a1b9b6aSSam Leffler ni->ni_ic = ic; 12588a1b9b6aSSam Leffler IEEE80211_NODE_UNLOCK(nt); 12591a1e1d21SSam Leffler 1260be1054edSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni, 1261be1054edSSam Leffler "%s: inact_reload %u", __func__, ni->ni_inact_reload); 1262be1054edSSam Leffler 1263bd56e71bSBernhard Schmidt ieee80211_ratectl_node_init(ni); 1264bd56e71bSBernhard Schmidt 12651a1e1d21SSam Leffler return ni; 12661a1e1d21SSam Leffler } 12671a1e1d21SSam Leffler 126897c973adSSam Leffler /* 126997c973adSSam Leffler * Craft a temporary node suitable for sending a management frame 127097c973adSSam Leffler * to the specified station. We craft only as much state as we 127197c973adSSam Leffler * need to do the work since the node will be immediately reclaimed 127297c973adSSam Leffler * once the send completes. 127397c973adSSam Leffler */ 127497c973adSSam Leffler struct ieee80211_node * 1275b032f27cSSam Leffler ieee80211_tmp_node(struct ieee80211vap *vap, 1276b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 127797c973adSSam Leffler { 1278b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 127997c973adSSam Leffler struct ieee80211_node *ni; 128097c973adSSam Leffler 128138c208f8SSam Leffler ni = ic->ic_node_alloc(vap, macaddr); 128297c973adSSam Leffler if (ni != NULL) { 1283b9b5f07dSSam Leffler struct ieee80211_node *bss = vap->iv_bss; 1284b9b5f07dSSam Leffler 1285b032f27cSSam Leffler IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 128697c973adSSam Leffler "%s %p<%s>\n", __func__, ni, ether_sprintf(macaddr)); 128797c973adSSam Leffler 1288b032f27cSSam Leffler ni->ni_table = NULL; /* NB: pedantic */ 1289b032f27cSSam Leffler ni->ni_ic = ic; /* NB: needed to set channel */ 1290b032f27cSSam Leffler ni->ni_vap = vap; 1291b032f27cSSam Leffler 129297c973adSSam Leffler IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr); 1293b9b5f07dSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, bss->ni_bssid); 129497c973adSSam Leffler ieee80211_node_initref(ni); /* mark referenced */ 129597c973adSSam Leffler /* NB: required by ieee80211_fix_rate */ 1296b9b5f07dSSam Leffler ieee80211_node_set_chan(ni, bss->ni_chan); 1297b032f27cSSam Leffler ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey, 129897c973adSSam Leffler IEEE80211_KEYIX_NONE); 1299b9b5f07dSSam Leffler ni->ni_txpower = bss->ni_txpower; 130097c973adSSam Leffler /* XXX optimize away */ 130163092fceSSam Leffler ieee80211_psq_init(&ni->ni_psq, "unknown"); 1302bd56e71bSBernhard Schmidt 1303bd56e71bSBernhard Schmidt ieee80211_ratectl_node_init(ni); 130497c973adSSam Leffler } else { 130597c973adSSam Leffler /* XXX msg */ 1306b032f27cSSam Leffler vap->iv_stats.is_rx_nodealloc++; 130797c973adSSam Leffler } 130897c973adSSam Leffler return ni; 130997c973adSSam Leffler } 131097c973adSSam Leffler 13111a1e1d21SSam Leffler struct ieee80211_node * 1312b032f27cSSam Leffler ieee80211_dup_bss(struct ieee80211vap *vap, 1313b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 13141a1e1d21SSam Leffler { 1315b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 13168a1b9b6aSSam Leffler struct ieee80211_node *ni; 13178a1b9b6aSSam Leffler 1318b032f27cSSam Leffler ni = ieee80211_alloc_node(&ic->ic_sta, vap, macaddr); 13191a1e1d21SSam Leffler if (ni != NULL) { 1320b9b5f07dSSam Leffler struct ieee80211_node *bss = vap->iv_bss; 1321694dca64SSam Leffler /* 1322b032f27cSSam Leffler * Inherit from iv_bss. 1323694dca64SSam Leffler */ 1324b9b5f07dSSam Leffler copy_bss(ni, bss); 1325b9b5f07dSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, bss->ni_bssid); 1326b9b5f07dSSam Leffler ieee80211_node_set_chan(ni, bss->ni_chan); 1327b032f27cSSam Leffler } 13281a1e1d21SSam Leffler return ni; 13291a1e1d21SSam Leffler } 13301a1e1d21SSam Leffler 1331b032f27cSSam Leffler /* 1332b032f27cSSam Leffler * Create a bss node for a legacy WDS vap. The far end does 1333b032f27cSSam Leffler * not associate so we just create create a new node and 1334b032f27cSSam Leffler * simulate an association. The caller is responsible for 1335b032f27cSSam Leffler * installing the node as the bss node and handling any further 1336b032f27cSSam Leffler * setup work like authorizing the port. 1337b032f27cSSam Leffler */ 1338b032f27cSSam Leffler struct ieee80211_node * 1339b032f27cSSam Leffler ieee80211_node_create_wds(struct ieee80211vap *vap, 1340b032f27cSSam Leffler const uint8_t bssid[IEEE80211_ADDR_LEN], struct ieee80211_channel *chan) 1341b032f27cSSam Leffler { 1342b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 1343b032f27cSSam Leffler struct ieee80211_node *ni; 1344b032f27cSSam Leffler 1345b032f27cSSam Leffler /* XXX check if node already in sta table? */ 1346b032f27cSSam Leffler ni = ieee80211_alloc_node(&ic->ic_sta, vap, bssid); 1347b032f27cSSam Leffler if (ni != NULL) { 1348b032f27cSSam Leffler ni->ni_wdsvap = vap; 1349b032f27cSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, bssid); 1350b032f27cSSam Leffler /* 1351b032f27cSSam Leffler * Inherit any manually configured settings. 1352b032f27cSSam Leffler */ 1353b9b5f07dSSam Leffler copy_bss(ni, vap->iv_bss); 1354b032f27cSSam Leffler ieee80211_node_set_chan(ni, chan); 1355b032f27cSSam Leffler /* NB: propagate ssid so available to WPA supplicant */ 1356b032f27cSSam Leffler ni->ni_esslen = vap->iv_des_ssid[0].len; 1357b032f27cSSam Leffler memcpy(ni->ni_essid, vap->iv_des_ssid[0].ssid, ni->ni_esslen); 1358b032f27cSSam Leffler /* NB: no associd for peer */ 1359b032f27cSSam Leffler /* 1360b032f27cSSam Leffler * There are no management frames to use to 1361b032f27cSSam Leffler * discover neighbor capabilities, so blindly 1362b032f27cSSam Leffler * propagate the local configuration. 1363b032f27cSSam Leffler */ 1364b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_WME) 1365b032f27cSSam Leffler ni->ni_flags |= IEEE80211_NODE_QOS; 1366616190d0SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 1367b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_FF) 1368b032f27cSSam Leffler ni->ni_flags |= IEEE80211_NODE_FF; 1369616190d0SSam Leffler #endif 1370b032f27cSSam Leffler if ((ic->ic_htcaps & IEEE80211_HTC_HT) && 13712bfc8a91SSam Leffler (vap->iv_flags_ht & IEEE80211_FHT_HT)) { 1372b032f27cSSam Leffler /* 1373b032f27cSSam Leffler * Device is HT-capable and HT is enabled for 1374b032f27cSSam Leffler * the vap; setup HT operation. On return 1375b032f27cSSam Leffler * ni_chan will be adjusted to an HT channel. 1376b032f27cSSam Leffler */ 1377b032f27cSSam Leffler ieee80211_ht_wds_init(ni); 1378b032f27cSSam Leffler } else { 1379b032f27cSSam Leffler struct ieee80211_channel *c = ni->ni_chan; 1380b032f27cSSam Leffler /* 1381b032f27cSSam Leffler * Force a legacy channel to be used. 1382b032f27cSSam Leffler */ 1383b032f27cSSam Leffler c = ieee80211_find_channel(ic, 1384b032f27cSSam Leffler c->ic_freq, c->ic_flags &~ IEEE80211_CHAN_HT); 1385b032f27cSSam Leffler KASSERT(c != NULL, ("no legacy channel, %u/%x", 1386b032f27cSSam Leffler ni->ni_chan->ic_freq, ni->ni_chan->ic_flags)); 1387b032f27cSSam Leffler ni->ni_chan = c; 1388b032f27cSSam Leffler } 1389b032f27cSSam Leffler } 1390b032f27cSSam Leffler return ni; 1391b032f27cSSam Leffler } 1392b032f27cSSam Leffler 1393b032f27cSSam Leffler struct ieee80211_node * 13948a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1395b032f27cSSam Leffler ieee80211_find_node_locked_debug(struct ieee80211_node_table *nt, 1396b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line) 13978a1b9b6aSSam Leffler #else 1398b032f27cSSam Leffler ieee80211_find_node_locked(struct ieee80211_node_table *nt, 1399b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 14008a1b9b6aSSam Leffler #endif 14011a1e1d21SSam Leffler { 14021a1e1d21SSam Leffler struct ieee80211_node *ni; 14031a1e1d21SSam Leffler int hash; 14041a1e1d21SSam Leffler 14058a1b9b6aSSam Leffler IEEE80211_NODE_LOCK_ASSERT(nt); 1406750d6d0cSSam Leffler 140759aa14a9SRui Paulo hash = IEEE80211_NODE_HASH(nt->nt_ic, macaddr); 14088a1b9b6aSSam Leffler LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) { 14091a1e1d21SSam Leffler if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) { 14108a1b9b6aSSam Leffler ieee80211_ref_node(ni); /* mark referenced */ 14118a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1412b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE, 141349a15236SSam Leffler "%s (%s:%u) %p<%s> refcnt %d\n", __func__, 141449a15236SSam Leffler func, line, 141549a15236SSam Leffler ni, ether_sprintf(ni->ni_macaddr), 14168a1b9b6aSSam Leffler ieee80211_node_refcnt(ni)); 14178a1b9b6aSSam Leffler #endif 1418750d6d0cSSam Leffler return ni; 14191a1e1d21SSam Leffler } 14201a1e1d21SSam Leffler } 1421750d6d0cSSam Leffler return NULL; 1422750d6d0cSSam Leffler } 1423750d6d0cSSam Leffler 1424750d6d0cSSam Leffler struct ieee80211_node * 14258a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 14268a1b9b6aSSam Leffler ieee80211_find_node_debug(struct ieee80211_node_table *nt, 1427b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line) 14288a1b9b6aSSam Leffler #else 1429b032f27cSSam Leffler ieee80211_find_node(struct ieee80211_node_table *nt, 1430b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 14318a1b9b6aSSam Leffler #endif 1432750d6d0cSSam Leffler { 1433750d6d0cSSam Leffler struct ieee80211_node *ni; 1434750d6d0cSSam Leffler 14358a1b9b6aSSam Leffler IEEE80211_NODE_LOCK(nt); 1436b032f27cSSam Leffler ni = ieee80211_find_node_locked(nt, macaddr); 1437b032f27cSSam Leffler IEEE80211_NODE_UNLOCK(nt); 1438b032f27cSSam Leffler return ni; 1439b032f27cSSam Leffler } 1440b032f27cSSam Leffler 1441b032f27cSSam Leffler struct ieee80211_node * 1442b032f27cSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1443b032f27cSSam Leffler ieee80211_find_vap_node_locked_debug(struct ieee80211_node_table *nt, 1444b032f27cSSam Leffler const struct ieee80211vap *vap, 1445b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line) 1446b032f27cSSam Leffler #else 1447b032f27cSSam Leffler ieee80211_find_vap_node_locked(struct ieee80211_node_table *nt, 1448b032f27cSSam Leffler const struct ieee80211vap *vap, 1449b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 1450b032f27cSSam Leffler #endif 1451b032f27cSSam Leffler { 1452b032f27cSSam Leffler struct ieee80211_node *ni; 1453b032f27cSSam Leffler int hash; 1454b032f27cSSam Leffler 1455b032f27cSSam Leffler IEEE80211_NODE_LOCK_ASSERT(nt); 1456b032f27cSSam Leffler 145759aa14a9SRui Paulo hash = IEEE80211_NODE_HASH(nt->nt_ic, macaddr); 1458b032f27cSSam Leffler LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) { 1459b032f27cSSam Leffler if (ni->ni_vap == vap && 1460b032f27cSSam Leffler IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) { 1461b032f27cSSam Leffler ieee80211_ref_node(ni); /* mark referenced */ 1462b032f27cSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1463b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE, 1464b032f27cSSam Leffler "%s (%s:%u) %p<%s> refcnt %d\n", __func__, 1465b032f27cSSam Leffler func, line, 1466b032f27cSSam Leffler ni, ether_sprintf(ni->ni_macaddr), 1467b032f27cSSam Leffler ieee80211_node_refcnt(ni)); 1468b032f27cSSam Leffler #endif 1469b032f27cSSam Leffler return ni; 1470b032f27cSSam Leffler } 1471b032f27cSSam Leffler } 1472b032f27cSSam Leffler return NULL; 1473b032f27cSSam Leffler } 1474b032f27cSSam Leffler 1475b032f27cSSam Leffler struct ieee80211_node * 1476b032f27cSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1477b032f27cSSam Leffler ieee80211_find_vap_node_debug(struct ieee80211_node_table *nt, 1478b032f27cSSam Leffler const struct ieee80211vap *vap, 1479b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line) 1480b032f27cSSam Leffler #else 1481b032f27cSSam Leffler ieee80211_find_vap_node(struct ieee80211_node_table *nt, 1482b032f27cSSam Leffler const struct ieee80211vap *vap, 1483b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 1484b032f27cSSam Leffler #endif 1485b032f27cSSam Leffler { 1486b032f27cSSam Leffler struct ieee80211_node *ni; 1487b032f27cSSam Leffler 1488b032f27cSSam Leffler IEEE80211_NODE_LOCK(nt); 1489b032f27cSSam Leffler ni = ieee80211_find_vap_node_locked(nt, vap, macaddr); 14908a1b9b6aSSam Leffler IEEE80211_NODE_UNLOCK(nt); 14911a1e1d21SSam Leffler return ni; 14921a1e1d21SSam Leffler } 14931a1e1d21SSam Leffler 14941a1e1d21SSam Leffler /* 14958a1b9b6aSSam Leffler * Fake up a node; this handles node discovery in adhoc mode. 14968a1b9b6aSSam Leffler * Note that for the driver's benefit we we treat this like 14978a1b9b6aSSam Leffler * an association so the driver has an opportunity to setup 14988a1b9b6aSSam Leffler * it's private state. 14998a1b9b6aSSam Leffler */ 15008a1b9b6aSSam Leffler struct ieee80211_node * 1501b032f27cSSam Leffler ieee80211_fakeup_adhoc_node(struct ieee80211vap *vap, 150268e8e04eSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 15038a1b9b6aSSam Leffler { 15048a1b9b6aSSam Leffler struct ieee80211_node *ni; 15058a1b9b6aSSam Leffler 1506d71a1f7aSAdrian Chadd IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE | IEEE80211_MSG_ASSOC, 1507be425a0fSSam Leffler "%s: mac<%s>\n", __func__, ether_sprintf(macaddr)); 1508b032f27cSSam Leffler ni = ieee80211_dup_bss(vap, macaddr); 15098a1b9b6aSSam Leffler if (ni != NULL) { 1510b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 1511b032f27cSSam Leffler 15128a1b9b6aSSam Leffler /* XXX no rate negotiation; just dup */ 1513b032f27cSSam Leffler ni->ni_rates = vap->iv_bss->ni_rates; 1514aa68c24fSSam Leffler if (ieee80211_iserp_rateset(&ni->ni_rates)) 1515aa68c24fSSam Leffler ni->ni_flags |= IEEE80211_NODE_ERP; 1516b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_AHDEMO) { 15178e292e8eSSam Leffler /* 151868e8e04eSSam Leffler * In adhoc demo mode there are no management 151968e8e04eSSam Leffler * frames to use to discover neighbor capabilities, 152068e8e04eSSam Leffler * so blindly propagate the local configuration 152168e8e04eSSam Leffler * so we can do interesting things (e.g. use 152268e8e04eSSam Leffler * WME to disable ACK's). 15238e292e8eSSam Leffler */ 1524b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_WME) 15258e292e8eSSam Leffler ni->ni_flags |= IEEE80211_NODE_QOS; 1526616190d0SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 1527b032f27cSSam Leffler if (vap->iv_flags & IEEE80211_F_FF) 152868e8e04eSSam Leffler ni->ni_flags |= IEEE80211_NODE_FF; 1529616190d0SSam Leffler #endif 15308e292e8eSSam Leffler } 1531d77148fbSSam Leffler ieee80211_node_setuptxparms(ni); 153249d2c137SBernhard Schmidt ieee80211_ratectl_node_init(ni); 1533b032f27cSSam Leffler if (ic->ic_newassoc != NULL) 1534b032f27cSSam Leffler ic->ic_newassoc(ni, 1); 153568e8e04eSSam Leffler /* XXX not right for 802.1x/WPA */ 153668e8e04eSSam Leffler ieee80211_node_authorize(ni); 15378a1b9b6aSSam Leffler } 15388a1b9b6aSSam Leffler return ni; 15398a1b9b6aSSam Leffler } 15408a1b9b6aSSam Leffler 1541be425a0fSSam Leffler void 1542be425a0fSSam Leffler ieee80211_init_neighbor(struct ieee80211_node *ni, 1543be425a0fSSam Leffler const struct ieee80211_frame *wh, 1544be425a0fSSam Leffler const struct ieee80211_scanparams *sp) 1545be425a0fSSam Leffler { 1546d71a1f7aSAdrian Chadd int do_ht_setup = 0; 1547d71a1f7aSAdrian Chadd 1548be425a0fSSam Leffler ni->ni_esslen = sp->ssid[1]; 1549be425a0fSSam Leffler memcpy(ni->ni_essid, sp->ssid + 2, sp->ssid[1]); 1550be425a0fSSam Leffler IEEE80211_ADDR_COPY(ni->ni_bssid, wh->i_addr3); 1551be425a0fSSam Leffler memcpy(ni->ni_tstamp.data, sp->tstamp, sizeof(ni->ni_tstamp)); 1552be425a0fSSam Leffler ni->ni_intval = sp->bintval; 1553be425a0fSSam Leffler ni->ni_capinfo = sp->capinfo; 1554be425a0fSSam Leffler ni->ni_chan = ni->ni_ic->ic_curchan; 1555be425a0fSSam Leffler ni->ni_fhdwell = sp->fhdwell; 1556be425a0fSSam Leffler ni->ni_fhindex = sp->fhindex; 1557be425a0fSSam Leffler ni->ni_erp = sp->erp; 1558be425a0fSSam Leffler ni->ni_timoff = sp->timoff; 155959aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 156059aa14a9SRui Paulo if (ni->ni_vap->iv_opmode == IEEE80211_M_MBSS) 156159aa14a9SRui Paulo ieee80211_mesh_init_neighbor(ni, wh, sp); 156259aa14a9SRui Paulo #endif 1563b032f27cSSam Leffler if (ieee80211_ies_init(&ni->ni_ies, sp->ies, sp->ies_len)) { 1564b032f27cSSam Leffler ieee80211_ies_expand(&ni->ni_ies); 15659094ffdfSSam Leffler if (ni->ni_ies.wme_ie != NULL) 15669094ffdfSSam Leffler ni->ni_flags |= IEEE80211_NODE_QOS; 15679094ffdfSSam Leffler else 15689094ffdfSSam Leffler ni->ni_flags &= ~IEEE80211_NODE_QOS; 1569616190d0SSam Leffler #ifdef IEEE80211_SUPPORT_SUPERG 1570b032f27cSSam Leffler if (ni->ni_ies.ath_ie != NULL) 1571b032f27cSSam Leffler ieee80211_parse_ath(ni, ni->ni_ies.ath_ie); 1572616190d0SSam Leffler #endif 1573d71a1f7aSAdrian Chadd if (ni->ni_ies.htcap_ie != NULL) 1574d71a1f7aSAdrian Chadd ieee80211_parse_htcap(ni, ni->ni_ies.htcap_ie); 1575d71a1f7aSAdrian Chadd if (ni->ni_ies.htinfo_ie != NULL) 1576d71a1f7aSAdrian Chadd ieee80211_parse_htinfo(ni, ni->ni_ies.htinfo_ie); 1577d71a1f7aSAdrian Chadd 1578d71a1f7aSAdrian Chadd if ((ni->ni_ies.htcap_ie != NULL) && 1579d71a1f7aSAdrian Chadd (ni->ni_ies.htinfo_ie != NULL) && 1580d71a1f7aSAdrian Chadd (ni->ni_vap->iv_flags_ht & IEEE80211_FHT_HT)) { 1581d71a1f7aSAdrian Chadd do_ht_setup = 1; 1582d71a1f7aSAdrian Chadd } 1583b032f27cSSam Leffler } 1584be425a0fSSam Leffler 1585be425a0fSSam Leffler /* NB: must be after ni_chan is setup */ 158679edaebfSSam Leffler ieee80211_setup_rates(ni, sp->rates, sp->xrates, 158779edaebfSSam Leffler IEEE80211_F_DOSORT | IEEE80211_F_DOFRATE | 158879edaebfSSam Leffler IEEE80211_F_DONEGO | IEEE80211_F_DODEL); 1589d71a1f7aSAdrian Chadd 1590d71a1f7aSAdrian Chadd /* 1591d71a1f7aSAdrian Chadd * If the neighbor is HT compatible, flip that on. 1592d71a1f7aSAdrian Chadd */ 1593d71a1f7aSAdrian Chadd if (do_ht_setup) { 1594d71a1f7aSAdrian Chadd IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_ASSOC, 1595d71a1f7aSAdrian Chadd "%s: doing HT setup\n", __func__); 1596d71a1f7aSAdrian Chadd ieee80211_ht_node_init(ni); 1597d71a1f7aSAdrian Chadd ieee80211_ht_updateparams(ni, 1598d71a1f7aSAdrian Chadd ni->ni_ies.htcap_ie, 1599d71a1f7aSAdrian Chadd ni->ni_ies.htinfo_ie); 1600d71a1f7aSAdrian Chadd ieee80211_setup_htrates(ni, 1601d71a1f7aSAdrian Chadd ni->ni_ies.htcap_ie, 1602d71a1f7aSAdrian Chadd IEEE80211_F_JOIN | IEEE80211_F_DOBRS); 1603d71a1f7aSAdrian Chadd ieee80211_setup_basic_htrates(ni, 1604d71a1f7aSAdrian Chadd ni->ni_ies.htinfo_ie); 1605d71a1f7aSAdrian Chadd ieee80211_node_setuptxparms(ni); 1606d71a1f7aSAdrian Chadd ieee80211_ratectl_node_init(ni); 1607d71a1f7aSAdrian Chadd } 1608be425a0fSSam Leffler } 1609be425a0fSSam Leffler 1610b5c99415SSam Leffler /* 1611b5c99415SSam Leffler * Do node discovery in adhoc mode on receipt of a beacon 1612b5c99415SSam Leffler * or probe response frame. Note that for the driver's 1613b5c99415SSam Leffler * benefit we we treat this like an association so the 1614b5c99415SSam Leffler * driver has an opportunity to setup it's private state. 1615b5c99415SSam Leffler */ 1616b5c99415SSam Leffler struct ieee80211_node * 1617b032f27cSSam Leffler ieee80211_add_neighbor(struct ieee80211vap *vap, 1618b5c99415SSam Leffler const struct ieee80211_frame *wh, 1619b5c99415SSam Leffler const struct ieee80211_scanparams *sp) 1620b5c99415SSam Leffler { 1621b5c99415SSam Leffler struct ieee80211_node *ni; 1622b5c99415SSam Leffler 1623d71a1f7aSAdrian Chadd IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC, 1624be425a0fSSam Leffler "%s: mac<%s>\n", __func__, ether_sprintf(wh->i_addr2)); 1625b032f27cSSam Leffler ni = ieee80211_dup_bss(vap, wh->i_addr2);/* XXX alloc_node? */ 1626b5c99415SSam Leffler if (ni != NULL) { 1627b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 1628b032f27cSSam Leffler 1629be425a0fSSam Leffler ieee80211_init_neighbor(ni, wh, sp); 1630aa68c24fSSam Leffler if (ieee80211_iserp_rateset(&ni->ni_rates)) 1631aa68c24fSSam Leffler ni->ni_flags |= IEEE80211_NODE_ERP; 1632d77148fbSSam Leffler ieee80211_node_setuptxparms(ni); 163349d2c137SBernhard Schmidt ieee80211_ratectl_node_init(ni); 1634b5c99415SSam Leffler if (ic->ic_newassoc != NULL) 1635b5c99415SSam Leffler ic->ic_newassoc(ni, 1); 1636b5c99415SSam Leffler /* XXX not right for 802.1x/WPA */ 1637b5c99415SSam Leffler ieee80211_node_authorize(ni); 1638b5c99415SSam Leffler } 1639b5c99415SSam Leffler return ni; 1640b5c99415SSam Leffler } 1641b5c99415SSam Leffler 1642a2cfa5b7SSam Leffler #define IS_PROBEREQ(wh) \ 1643a2cfa5b7SSam Leffler ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK|IEEE80211_FC0_SUBTYPE_MASK)) \ 1644a2cfa5b7SSam Leffler == (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_REQ)) 1645a2cfa5b7SSam Leffler #define IS_BCAST_PROBEREQ(wh) \ 1646a2cfa5b7SSam Leffler (IS_PROBEREQ(wh) && IEEE80211_IS_MULTICAST( \ 1647a2cfa5b7SSam Leffler ((const struct ieee80211_frame *)(wh))->i_addr3)) 1648a2cfa5b7SSam Leffler 1649a2cfa5b7SSam Leffler static __inline struct ieee80211_node * 1650a2cfa5b7SSam Leffler _find_rxnode(struct ieee80211_node_table *nt, 1651a2cfa5b7SSam Leffler const struct ieee80211_frame_min *wh) 1652a2cfa5b7SSam Leffler { 1653a2cfa5b7SSam Leffler if (IS_BCAST_PROBEREQ(wh)) 1654a2cfa5b7SSam Leffler return NULL; /* spam bcast probe req to all vap's */ 1655a2cfa5b7SSam Leffler return ieee80211_find_node_locked(nt, wh->i_addr2); 1656a2cfa5b7SSam Leffler } 165768e8e04eSSam Leffler 16588a1b9b6aSSam Leffler /* 16598a1b9b6aSSam Leffler * Locate the node for sender, track state, and then pass the 1660a2cfa5b7SSam Leffler * (referenced) node up to the 802.11 layer for its use. Note 1661a2cfa5b7SSam Leffler * we can return NULL if the sender is not in the table. 16628a1b9b6aSSam Leffler */ 16638a1b9b6aSSam Leffler struct ieee80211_node * 16648a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 16658a1b9b6aSSam Leffler ieee80211_find_rxnode_debug(struct ieee80211com *ic, 16668a1b9b6aSSam Leffler const struct ieee80211_frame_min *wh, const char *func, int line) 16678a1b9b6aSSam Leffler #else 16688a1b9b6aSSam Leffler ieee80211_find_rxnode(struct ieee80211com *ic, 16698a1b9b6aSSam Leffler const struct ieee80211_frame_min *wh) 16708a1b9b6aSSam Leffler #endif 16718a1b9b6aSSam Leffler { 16728a1b9b6aSSam Leffler struct ieee80211_node_table *nt; 16738a1b9b6aSSam Leffler struct ieee80211_node *ni; 16748a1b9b6aSSam Leffler 167568e8e04eSSam Leffler nt = &ic->ic_sta; 16768a1b9b6aSSam Leffler IEEE80211_NODE_LOCK(nt); 1677a2cfa5b7SSam Leffler ni = _find_rxnode(nt, wh); 16788a1b9b6aSSam Leffler IEEE80211_NODE_UNLOCK(nt); 16798a1b9b6aSSam Leffler 1680c1225b52SSam Leffler return ni; 1681c1225b52SSam Leffler } 1682c1225b52SSam Leffler 1683c1225b52SSam Leffler /* 1684c1225b52SSam Leffler * Like ieee80211_find_rxnode but use the supplied h/w 1685c1225b52SSam Leffler * key index as a hint to locate the node in the key 1686c1225b52SSam Leffler * mapping table. If an entry is present at the key 1687c1225b52SSam Leffler * index we return it; otherwise do a normal lookup and 1688c1225b52SSam Leffler * update the mapping table if the station has a unicast 1689c1225b52SSam Leffler * key assigned to it. 1690c1225b52SSam Leffler */ 1691c1225b52SSam Leffler struct ieee80211_node * 1692c1225b52SSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1693c1225b52SSam Leffler ieee80211_find_rxnode_withkey_debug(struct ieee80211com *ic, 1694c1225b52SSam Leffler const struct ieee80211_frame_min *wh, ieee80211_keyix keyix, 1695c1225b52SSam Leffler const char *func, int line) 1696c1225b52SSam Leffler #else 1697c1225b52SSam Leffler ieee80211_find_rxnode_withkey(struct ieee80211com *ic, 1698c1225b52SSam Leffler const struct ieee80211_frame_min *wh, ieee80211_keyix keyix) 1699c1225b52SSam Leffler #endif 1700c1225b52SSam Leffler { 1701c1225b52SSam Leffler struct ieee80211_node_table *nt; 1702c1225b52SSam Leffler struct ieee80211_node *ni; 1703c1225b52SSam Leffler 1704c1225b52SSam Leffler nt = &ic->ic_sta; 1705c1225b52SSam Leffler IEEE80211_NODE_LOCK(nt); 1706c1225b52SSam Leffler if (nt->nt_keyixmap != NULL && keyix < nt->nt_keyixmax) 1707c1225b52SSam Leffler ni = nt->nt_keyixmap[keyix]; 1708c1225b52SSam Leffler else 1709c1225b52SSam Leffler ni = NULL; 1710c1225b52SSam Leffler if (ni == NULL) { 1711a2cfa5b7SSam Leffler ni = _find_rxnode(nt, wh); 1712b032f27cSSam Leffler if (ni != NULL && nt->nt_keyixmap != NULL) { 1713c1225b52SSam Leffler /* 1714c1225b52SSam Leffler * If the station has a unicast key cache slot 1715c1225b52SSam Leffler * assigned update the key->node mapping table. 1716c1225b52SSam Leffler */ 1717c1225b52SSam Leffler keyix = ni->ni_ucastkey.wk_rxkeyix; 1718c1225b52SSam Leffler /* XXX can keyixmap[keyix] != NULL? */ 1719c1225b52SSam Leffler if (keyix < nt->nt_keyixmax && 1720c1225b52SSam Leffler nt->nt_keyixmap[keyix] == NULL) { 1721b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, 1722b032f27cSSam Leffler IEEE80211_MSG_NODE, 1723c1225b52SSam Leffler "%s: add key map entry %p<%s> refcnt %d\n", 1724c1225b52SSam Leffler __func__, ni, ether_sprintf(ni->ni_macaddr), 1725c1225b52SSam Leffler ieee80211_node_refcnt(ni)+1); 1726c1225b52SSam Leffler nt->nt_keyixmap[keyix] = ieee80211_ref_node(ni); 1727c1225b52SSam Leffler } 1728c1225b52SSam Leffler } 1729a2cfa5b7SSam Leffler } else { 1730a2cfa5b7SSam Leffler if (IS_BCAST_PROBEREQ(wh)) 1731a2cfa5b7SSam Leffler ni = NULL; /* spam bcast probe req to all vap's */ 1732a2cfa5b7SSam Leffler else 1733c1225b52SSam Leffler ieee80211_ref_node(ni); 1734a2cfa5b7SSam Leffler } 1735c1225b52SSam Leffler IEEE80211_NODE_UNLOCK(nt); 1736c1225b52SSam Leffler 1737c1225b52SSam Leffler return ni; 1738c1225b52SSam Leffler } 1739a2cfa5b7SSam Leffler #undef IS_BCAST_PROBEREQ 1740a2cfa5b7SSam Leffler #undef IS_PROBEREQ 17418a1b9b6aSSam Leffler 17428a1b9b6aSSam Leffler /* 1743750d6d0cSSam Leffler * Return a reference to the appropriate node for sending 1744750d6d0cSSam Leffler * a data frame. This handles node discovery in adhoc networks. 1745750d6d0cSSam Leffler */ 1746750d6d0cSSam Leffler struct ieee80211_node * 17478a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1748b032f27cSSam Leffler ieee80211_find_txnode_debug(struct ieee80211vap *vap, 1749b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN], 17508a1b9b6aSSam Leffler const char *func, int line) 17518a1b9b6aSSam Leffler #else 1752b032f27cSSam Leffler ieee80211_find_txnode(struct ieee80211vap *vap, 1753b032f27cSSam Leffler const uint8_t macaddr[IEEE80211_ADDR_LEN]) 17548a1b9b6aSSam Leffler #endif 1755750d6d0cSSam Leffler { 1756b032f27cSSam Leffler struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta; 1757750d6d0cSSam Leffler struct ieee80211_node *ni; 1758750d6d0cSSam Leffler 1759750d6d0cSSam Leffler /* 1760750d6d0cSSam Leffler * The destination address should be in the node table 1761c1225b52SSam Leffler * unless this is a multicast/broadcast frame. We can 1762c1225b52SSam Leffler * also optimize station mode operation, all frames go 1763c1225b52SSam Leffler * to the bss node. 1764750d6d0cSSam Leffler */ 1765750d6d0cSSam Leffler /* XXX can't hold lock across dup_bss 'cuz of recursive locking */ 17668a1b9b6aSSam Leffler IEEE80211_NODE_LOCK(nt); 1767b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_STA || 1768b032f27cSSam Leffler vap->iv_opmode == IEEE80211_M_WDS || 1769b032f27cSSam Leffler IEEE80211_IS_MULTICAST(macaddr)) 1770b032f27cSSam Leffler ni = ieee80211_ref_node(vap->iv_bss); 17711b999d64SSam Leffler else 1772b032f27cSSam Leffler ni = ieee80211_find_node_locked(nt, macaddr); 17738a1b9b6aSSam Leffler IEEE80211_NODE_UNLOCK(nt); 17748a1b9b6aSSam Leffler 17758a1b9b6aSSam Leffler if (ni == NULL) { 1776b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_IBSS || 1777b032f27cSSam Leffler vap->iv_opmode == IEEE80211_M_AHDEMO) { 177890d0d036SSam Leffler /* 177990d0d036SSam Leffler * In adhoc mode cons up a node for the destination. 178090d0d036SSam Leffler * Note that we need an additional reference for the 1781b032f27cSSam Leffler * caller to be consistent with 1782b032f27cSSam Leffler * ieee80211_find_node_locked. 178390d0d036SSam Leffler */ 1784b032f27cSSam Leffler ni = ieee80211_fakeup_adhoc_node(vap, macaddr); 178590d0d036SSam Leffler if (ni != NULL) 178690d0d036SSam Leffler (void) ieee80211_ref_node(ni); 178790d0d036SSam Leffler } else { 1788b032f27cSSam Leffler IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_OUTPUT, macaddr, 1789b032f27cSSam Leffler "no node, discard frame (%s)", __func__); 1790b032f27cSSam Leffler vap->iv_stats.is_tx_nonode++; 1791750d6d0cSSam Leffler } 1792750d6d0cSSam Leffler } 1793750d6d0cSSam Leffler return ni; 1794750d6d0cSSam Leffler } 1795750d6d0cSSam Leffler 17968a1b9b6aSSam Leffler static void 17978a1b9b6aSSam Leffler _ieee80211_free_node(struct ieee80211_node *ni) 17988a1b9b6aSSam Leffler { 17998a1b9b6aSSam Leffler struct ieee80211_node_table *nt = ni->ni_table; 18008a1b9b6aSSam Leffler 180137e9743aSSam Leffler /* 180237e9743aSSam Leffler * NB: careful about referencing the vap as it may be 180337e9743aSSam Leffler * gone if the last reference was held by a driver. 180437e9743aSSam Leffler * We know the com will always be present so it's safe 180537e9743aSSam Leffler * to use ni_ic below to reclaim resources. 180637e9743aSSam Leffler */ 180737e9743aSSam Leffler #if 0 1808b032f27cSSam Leffler IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, 180949a15236SSam Leffler "%s %p<%s> in %s table\n", __func__, ni, 181049a15236SSam Leffler ether_sprintf(ni->ni_macaddr), 18118a1b9b6aSSam Leffler nt != NULL ? nt->nt_name : "<gone>"); 181237e9743aSSam Leffler #endif 181337e9743aSSam Leffler if (ni->ni_associd != 0) { 181437e9743aSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 1815b032f27cSSam Leffler if (vap->iv_aid_bitmap != NULL) 1816b032f27cSSam Leffler IEEE80211_AID_CLR(vap, ni->ni_associd); 181737e9743aSSam Leffler } 18188a1b9b6aSSam Leffler if (nt != NULL) { 18198a1b9b6aSSam Leffler TAILQ_REMOVE(&nt->nt_node, ni, ni_list); 18208a1b9b6aSSam Leffler LIST_REMOVE(ni, ni_hash); 18218a1b9b6aSSam Leffler } 182237e9743aSSam Leffler ni->ni_ic->ic_node_free(ni); 18238a1b9b6aSSam Leffler } 18248a1b9b6aSSam Leffler 1825eca3b4fcSAdrian Chadd /* 1826eca3b4fcSAdrian Chadd * Clear any entry in the unicast key mapping table. 1827eca3b4fcSAdrian Chadd */ 1828eca3b4fcSAdrian Chadd static int 1829eca3b4fcSAdrian Chadd node_clear_keyixmap(struct ieee80211_node_table *nt, struct ieee80211_node *ni) 1830eca3b4fcSAdrian Chadd { 1831eca3b4fcSAdrian Chadd ieee80211_keyix keyix; 1832eca3b4fcSAdrian Chadd 1833eca3b4fcSAdrian Chadd keyix = ni->ni_ucastkey.wk_rxkeyix; 1834eca3b4fcSAdrian Chadd if (nt->nt_keyixmap != NULL && keyix < nt->nt_keyixmax && 1835eca3b4fcSAdrian Chadd nt->nt_keyixmap[keyix] == ni) { 1836eca3b4fcSAdrian Chadd IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE, 1837eca3b4fcSAdrian Chadd "%s: %p<%s> clear key map entry %u\n", 1838eca3b4fcSAdrian Chadd __func__, ni, ether_sprintf(ni->ni_macaddr), keyix); 1839eca3b4fcSAdrian Chadd nt->nt_keyixmap[keyix] = NULL; 1840eca3b4fcSAdrian Chadd ieee80211_node_decref(ni); 1841eca3b4fcSAdrian Chadd return 1; 1842eca3b4fcSAdrian Chadd } 1843eca3b4fcSAdrian Chadd 1844eca3b4fcSAdrian Chadd return 0; 1845eca3b4fcSAdrian Chadd } 1846eca3b4fcSAdrian Chadd 18478a1b9b6aSSam Leffler void 18488a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 18498a1b9b6aSSam Leffler ieee80211_free_node_debug(struct ieee80211_node *ni, const char *func, int line) 18508a1b9b6aSSam Leffler #else 18518a1b9b6aSSam Leffler ieee80211_free_node(struct ieee80211_node *ni) 18528a1b9b6aSSam Leffler #endif 18538a1b9b6aSSam Leffler { 18548a1b9b6aSSam Leffler struct ieee80211_node_table *nt = ni->ni_table; 18558a1b9b6aSSam Leffler 18568a1b9b6aSSam Leffler #ifdef IEEE80211_DEBUG_REFCNT 1857b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE, 185849a15236SSam Leffler "%s (%s:%u) %p<%s> refcnt %d\n", __func__, func, line, ni, 18598a1b9b6aSSam Leffler ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)-1); 18608a1b9b6aSSam Leffler #endif 1861c1225b52SSam Leffler if (nt != NULL) { 1862c1225b52SSam Leffler IEEE80211_NODE_LOCK(nt); 18638a1b9b6aSSam Leffler if (ieee80211_node_dectestref(ni)) { 18648a1b9b6aSSam Leffler /* 1865c1225b52SSam Leffler * Last reference, reclaim state. 18668a1b9b6aSSam Leffler */ 18678a1b9b6aSSam Leffler _ieee80211_free_node(ni); 1868eca3b4fcSAdrian Chadd } else if (ieee80211_node_refcnt(ni) == 1) 1869eca3b4fcSAdrian Chadd if (node_clear_keyixmap(nt, ni)) 18708a1b9b6aSSam Leffler _ieee80211_free_node(ni); 1871c1225b52SSam Leffler IEEE80211_NODE_UNLOCK(nt); 1872c1225b52SSam Leffler } else { 1873c1225b52SSam Leffler if (ieee80211_node_dectestref(ni)) 1874c1225b52SSam Leffler _ieee80211_free_node(ni); 1875c1225b52SSam Leffler } 1876c1225b52SSam Leffler } 1877c1225b52SSam Leffler 1878c1225b52SSam Leffler /* 1879c1225b52SSam Leffler * Reclaim a unicast key and clear any key cache state. 1880c1225b52SSam Leffler */ 1881c1225b52SSam Leffler int 1882c1225b52SSam Leffler ieee80211_node_delucastkey(struct ieee80211_node *ni) 1883c1225b52SSam Leffler { 188437e9743aSSam Leffler struct ieee80211com *ic = ni->ni_ic; 188537e9743aSSam Leffler struct ieee80211_node_table *nt = &ic->ic_sta; 1886c1225b52SSam Leffler struct ieee80211_node *nikey; 1887c1225b52SSam Leffler ieee80211_keyix keyix; 1888c1225b52SSam Leffler int isowned, status; 1889c1225b52SSam Leffler 1890c1225b52SSam Leffler /* 1891c1225b52SSam Leffler * NB: We must beware of LOR here; deleting the key 1892c1225b52SSam Leffler * can cause the crypto layer to block traffic updates 1893c1225b52SSam Leffler * which can generate a LOR against the node table lock; 1894c1225b52SSam Leffler * grab it here and stash the key index for our use below. 1895c1225b52SSam Leffler * 1896c1225b52SSam Leffler * Must also beware of recursion on the node table lock. 1897c1225b52SSam Leffler * When called from node_cleanup we may already have 1898c1225b52SSam Leffler * the node table lock held. Unfortunately there's no 1899c1225b52SSam Leffler * way to separate out this path so we must do this 1900c1225b52SSam Leffler * conditionally. 1901c1225b52SSam Leffler */ 1902c1225b52SSam Leffler isowned = IEEE80211_NODE_IS_LOCKED(nt); 1903c1225b52SSam Leffler if (!isowned) 1904c1225b52SSam Leffler IEEE80211_NODE_LOCK(nt); 190537e9743aSSam Leffler nikey = NULL; 190637e9743aSSam Leffler status = 1; /* NB: success */ 1907ca92652aSSam Leffler if (ni->ni_ucastkey.wk_keyix != IEEE80211_KEYIX_NONE) { 1908c1225b52SSam Leffler keyix = ni->ni_ucastkey.wk_rxkeyix; 190937e9743aSSam Leffler status = ieee80211_crypto_delkey(ni->ni_vap, &ni->ni_ucastkey); 1910c1225b52SSam Leffler if (nt->nt_keyixmap != NULL && keyix < nt->nt_keyixmax) { 1911c1225b52SSam Leffler nikey = nt->nt_keyixmap[keyix]; 1912c2ede4b3SMartin Blapp nt->nt_keyixmap[keyix] = NULL; 191337e9743aSSam Leffler } 191437e9743aSSam Leffler } 1915c1225b52SSam Leffler if (!isowned) 1916b032f27cSSam Leffler IEEE80211_NODE_UNLOCK(nt); 1917c1225b52SSam Leffler 1918c1225b52SSam Leffler if (nikey != NULL) { 1919c1225b52SSam Leffler KASSERT(nikey == ni, 1920c1225b52SSam Leffler ("key map out of sync, ni %p nikey %p", ni, nikey)); 192137e9743aSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE, 1922c1225b52SSam Leffler "%s: delete key map entry %p<%s> refcnt %d\n", 1923c1225b52SSam Leffler __func__, ni, ether_sprintf(ni->ni_macaddr), 1924c1225b52SSam Leffler ieee80211_node_refcnt(ni)-1); 1925c1225b52SSam Leffler ieee80211_free_node(ni); 1926c1225b52SSam Leffler } 1927c1225b52SSam Leffler return status; 1928c1225b52SSam Leffler } 19291a1e1d21SSam Leffler 1930303ebc3cSSam Leffler /* 19318a1b9b6aSSam Leffler * Reclaim a node. If this is the last reference count then 19328a1b9b6aSSam Leffler * do the normal free work. Otherwise remove it from the node 19338a1b9b6aSSam Leffler * table and mark it gone by clearing the back-reference. 19348a1b9b6aSSam Leffler */ 19358a1b9b6aSSam Leffler static void 19368a1b9b6aSSam Leffler node_reclaim(struct ieee80211_node_table *nt, struct ieee80211_node *ni) 19378a1b9b6aSSam Leffler { 1938c1225b52SSam Leffler 1939c1225b52SSam Leffler IEEE80211_NODE_LOCK_ASSERT(nt); 19408a1b9b6aSSam Leffler 1941b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE, 194249a15236SSam Leffler "%s: remove %p<%s> from %s table, refcnt %d\n", 194349a15236SSam Leffler __func__, ni, ether_sprintf(ni->ni_macaddr), 194449a15236SSam Leffler nt->nt_name, ieee80211_node_refcnt(ni)-1); 1945c1225b52SSam Leffler /* 1946c1225b52SSam Leffler * Clear any entry in the unicast key mapping table. 1947c1225b52SSam Leffler * We need to do it here so rx lookups don't find it 1948c1225b52SSam Leffler * in the mapping table even if it's not in the hash 1949c1225b52SSam Leffler * table. We cannot depend on the mapping table entry 1950c1225b52SSam Leffler * being cleared because the node may not be free'd. 1951c1225b52SSam Leffler */ 1952eca3b4fcSAdrian Chadd (void)node_clear_keyixmap(nt, ni); 19538a1b9b6aSSam Leffler if (!ieee80211_node_dectestref(ni)) { 19548a1b9b6aSSam Leffler /* 19558a1b9b6aSSam Leffler * Other references are present, just remove the 19568a1b9b6aSSam Leffler * node from the table so it cannot be found. When 19578a1b9b6aSSam Leffler * the references are dropped storage will be 1958acc4f7f5SSam Leffler * reclaimed. 19598a1b9b6aSSam Leffler */ 19608a1b9b6aSSam Leffler TAILQ_REMOVE(&nt->nt_node, ni, ni_list); 19618a1b9b6aSSam Leffler LIST_REMOVE(ni, ni_hash); 19628a1b9b6aSSam Leffler ni->ni_table = NULL; /* clear reference */ 19638a1b9b6aSSam Leffler } else 19648a1b9b6aSSam Leffler _ieee80211_free_node(ni); 19658a1b9b6aSSam Leffler } 19668a1b9b6aSSam Leffler 1967b032f27cSSam Leffler /* 1968b032f27cSSam Leffler * Node table support. 1969b032f27cSSam Leffler */ 1970b032f27cSSam Leffler 1971b032f27cSSam Leffler static void 1972b032f27cSSam Leffler ieee80211_node_table_init(struct ieee80211com *ic, 1973b032f27cSSam Leffler struct ieee80211_node_table *nt, 1974b032f27cSSam Leffler const char *name, int inact, int keyixmax) 1975b032f27cSSam Leffler { 1976b032f27cSSam Leffler 1977b032f27cSSam Leffler nt->nt_ic = ic; 1978c8f5794eSGleb Smirnoff IEEE80211_NODE_LOCK_INIT(nt, ic->ic_name); 1979b032f27cSSam Leffler TAILQ_INIT(&nt->nt_node); 1980b032f27cSSam Leffler nt->nt_name = name; 1981b032f27cSSam Leffler nt->nt_inact_init = inact; 1982b032f27cSSam Leffler nt->nt_keyixmax = keyixmax; 1983b032f27cSSam Leffler if (nt->nt_keyixmax > 0) { 1984b9b53389SAdrian Chadd nt->nt_keyixmap = (struct ieee80211_node **) IEEE80211_MALLOC( 1985c5abbba3SDag-Erling Smørgrav keyixmax * sizeof(struct ieee80211_node *), 1986b9b53389SAdrian Chadd M_80211_NODE, 1987b9b53389SAdrian Chadd IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 1988b032f27cSSam Leffler if (nt->nt_keyixmap == NULL) 1989c8f5794eSGleb Smirnoff ic_printf(ic, 1990b032f27cSSam Leffler "Cannot allocate key index map with %u entries\n", 1991b032f27cSSam Leffler keyixmax); 1992b032f27cSSam Leffler } else 1993b032f27cSSam Leffler nt->nt_keyixmap = NULL; 1994b032f27cSSam Leffler } 1995b032f27cSSam Leffler 1996b032f27cSSam Leffler static void 1997b032f27cSSam Leffler ieee80211_node_table_reset(struct ieee80211_node_table *nt, 1998b032f27cSSam Leffler struct ieee80211vap *match) 1999b032f27cSSam Leffler { 2000b032f27cSSam Leffler struct ieee80211_node *ni, *next; 2001b032f27cSSam Leffler 2002b032f27cSSam Leffler IEEE80211_NODE_LOCK(nt); 2003b032f27cSSam Leffler TAILQ_FOREACH_SAFE(ni, &nt->nt_node, ni_list, next) { 2004b032f27cSSam Leffler if (match != NULL && ni->ni_vap != match) 2005b032f27cSSam Leffler continue; 2006b032f27cSSam Leffler /* XXX can this happen? if so need's work */ 2007b032f27cSSam Leffler if (ni->ni_associd != 0) { 2008b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 2009b032f27cSSam Leffler 2010b032f27cSSam Leffler if (vap->iv_auth->ia_node_leave != NULL) 2011b032f27cSSam Leffler vap->iv_auth->ia_node_leave(ni); 2012b032f27cSSam Leffler if (vap->iv_aid_bitmap != NULL) 2013b032f27cSSam Leffler IEEE80211_AID_CLR(vap, ni->ni_associd); 2014b032f27cSSam Leffler } 2015b032f27cSSam Leffler ni->ni_wdsvap = NULL; /* clear reference */ 20168a1b9b6aSSam Leffler node_reclaim(nt, ni); 20178a1b9b6aSSam Leffler } 2018b032f27cSSam Leffler if (match != NULL && match->iv_opmode == IEEE80211_M_WDS) { 2019b032f27cSSam Leffler /* 2020b032f27cSSam Leffler * Make a separate pass to clear references to this vap 2021b032f27cSSam Leffler * held by DWDS entries. They will not be matched above 2022b032f27cSSam Leffler * because ni_vap will point to the ap vap but we still 2023b032f27cSSam Leffler * need to clear ni_wdsvap when the WDS vap is destroyed 2024b032f27cSSam Leffler * and/or reset. 2025b032f27cSSam Leffler */ 2026b032f27cSSam Leffler TAILQ_FOREACH_SAFE(ni, &nt->nt_node, ni_list, next) 2027b032f27cSSam Leffler if (ni->ni_wdsvap == match) 2028b032f27cSSam Leffler ni->ni_wdsvap = NULL; 2029b032f27cSSam Leffler } 2030b032f27cSSam Leffler IEEE80211_NODE_UNLOCK(nt); 2031b032f27cSSam Leffler } 2032b032f27cSSam Leffler 2033b032f27cSSam Leffler static void 2034b032f27cSSam Leffler ieee80211_node_table_cleanup(struct ieee80211_node_table *nt) 2035b032f27cSSam Leffler { 2036b032f27cSSam Leffler ieee80211_node_table_reset(nt, NULL); 2037b032f27cSSam Leffler if (nt->nt_keyixmap != NULL) { 2038b032f27cSSam Leffler #ifdef DIAGNOSTIC 2039b032f27cSSam Leffler /* XXX verify all entries are NULL */ 2040b032f27cSSam Leffler int i; 2041b032f27cSSam Leffler for (i = 0; i < nt->nt_keyixmax; i++) 2042b032f27cSSam Leffler if (nt->nt_keyixmap[i] != NULL) 2043b032f27cSSam Leffler printf("%s: %s[%u] still active\n", __func__, 2044b032f27cSSam Leffler nt->nt_name, i); 2045b032f27cSSam Leffler #endif 2046b9b53389SAdrian Chadd IEEE80211_FREE(nt->nt_keyixmap, M_80211_NODE); 2047b032f27cSSam Leffler nt->nt_keyixmap = NULL; 2048b032f27cSSam Leffler } 2049b032f27cSSam Leffler IEEE80211_NODE_LOCK_DESTROY(nt); 20508a1b9b6aSSam Leffler } 20518a1b9b6aSSam Leffler 20528a1b9b6aSSam Leffler static void 205303475bd0SAdrian Chadd timeout_stations(void *arg __unused, struct ieee80211_node *ni) 20541a1e1d21SSam Leffler { 205503475bd0SAdrian Chadd struct ieee80211com *ic = ni->ni_ic; 205603475bd0SAdrian Chadd struct ieee80211vap *vap = ni->ni_vap; 20571a1e1d21SSam Leffler 2058b032f27cSSam Leffler /* 2059b032f27cSSam Leffler * Only process stations when in RUN state. This 2060b032f27cSSam Leffler * insures, for example, that we don't timeout an 2061b032f27cSSam Leffler * inactive station during CAC. Note that CSA state 2062b032f27cSSam Leffler * is actually handled in ieee80211_node_timeout as 2063b032f27cSSam Leffler * it applies to more than timeout processing. 2064b032f27cSSam Leffler */ 2065b032f27cSSam Leffler if (vap->iv_state != IEEE80211_S_RUN) 206603475bd0SAdrian Chadd return; 206703475bd0SAdrian Chadd /* 206803475bd0SAdrian Chadd * Ignore entries for which have yet to receive an 206903475bd0SAdrian Chadd * authentication frame. These are transient and 207003475bd0SAdrian Chadd * will be reclaimed when the last reference to them 207103475bd0SAdrian Chadd * goes away (when frame xmits complete). 207203475bd0SAdrian Chadd */ 2073b032f27cSSam Leffler if ((vap->iv_opmode == IEEE80211_M_HOSTAP || 2074b032f27cSSam Leffler vap->iv_opmode == IEEE80211_M_STA) && 207544b666cdSSam Leffler (ni->ni_flags & IEEE80211_NODE_AREF) == 0) 207603475bd0SAdrian Chadd return; 2077ebdda46cSSam Leffler /* 20788a1b9b6aSSam Leffler * Free fragment if not needed anymore 20798a1b9b6aSSam Leffler * (last fragment older than 1s). 2080b032f27cSSam Leffler * XXX doesn't belong here, move to node_age 20810a915fadSSam Leffler */ 20828a1b9b6aSSam Leffler if (ni->ni_rxfrag[0] != NULL && 20838a1b9b6aSSam Leffler ticks > ni->ni_rxfragstamp + hz) { 20848a1b9b6aSSam Leffler m_freem(ni->ni_rxfrag[0]); 20858a1b9b6aSSam Leffler ni->ni_rxfrag[0] = NULL; 20868a1b9b6aSSam Leffler } 2087be1054edSSam Leffler if (ni->ni_inact > 0) { 2088c066143cSSam Leffler ni->ni_inact--; 2089be1054edSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni, 2090be1054edSSam Leffler "%s: inact %u inact_reload %u nrates %u", 2091be1054edSSam Leffler __func__, ni->ni_inact, ni->ni_inact_reload, 2092be1054edSSam Leffler ni->ni_rates.rs_nrates); 2093be1054edSSam Leffler } 2094ce647032SSam Leffler /* 2095ce647032SSam Leffler * Special case ourself; we may be idle for extended periods 2096ce647032SSam Leffler * of time and regardless reclaiming our state is wrong. 2097b032f27cSSam Leffler * XXX run ic_node_age 2098ce647032SSam Leffler */ 209903475bd0SAdrian Chadd /* XXX before inact decrement? */ 2100b032f27cSSam Leffler if (ni == vap->iv_bss) 210103475bd0SAdrian Chadd return; 2102b032f27cSSam Leffler if (ni->ni_associd != 0 || 2103b032f27cSSam Leffler (vap->iv_opmode == IEEE80211_M_IBSS || 2104b032f27cSSam Leffler vap->iv_opmode == IEEE80211_M_AHDEMO)) { 21058a1b9b6aSSam Leffler /* 2106b032f27cSSam Leffler * Age/drain resources held by the station. 21078a1b9b6aSSam Leffler */ 2108b032f27cSSam Leffler ic->ic_node_age(ni); 21098a1b9b6aSSam Leffler /* 21108a1b9b6aSSam Leffler * Probe the station before time it out. We 21118a1b9b6aSSam Leffler * send a null data frame which may not be 21128a1b9b6aSSam Leffler * universally supported by drivers (need it 21138a1b9b6aSSam Leffler * for ps-poll support so it should be...). 211468e8e04eSSam Leffler * 211568e8e04eSSam Leffler * XXX don't probe the station unless we've 211668e8e04eSSam Leffler * received a frame from them (and have 211768e8e04eSSam Leffler * some idea of the rates they are capable 211868e8e04eSSam Leffler * of); this will get fixed more properly 211968e8e04eSSam Leffler * soon with better handling of the rate set. 21208a1b9b6aSSam Leffler */ 2121b032f27cSSam Leffler if ((vap->iv_flags_ext & IEEE80211_FEXT_INACT) && 2122c066143cSSam Leffler (0 < ni->ni_inact && 2123b032f27cSSam Leffler ni->ni_inact <= vap->iv_inact_probe) && 212468e8e04eSSam Leffler ni->ni_rates.rs_nrates != 0) { 2125b032f27cSSam Leffler IEEE80211_NOTE(vap, 2126f66d97f6SSam Leffler IEEE80211_MSG_INACT | IEEE80211_MSG_NODE, 2127f66d97f6SSam Leffler ni, "%s", 2128f66d97f6SSam Leffler "probe station due to inactivity"); 212919ad2dd7SSam Leffler /* 213003475bd0SAdrian Chadd * Grab a reference so the node cannot 213103475bd0SAdrian Chadd * be reclaimed before we send the frame. 213203475bd0SAdrian Chadd * ieee80211_send_nulldata understands 213303475bd0SAdrian Chadd * we've done this and reclaims the 213419ad2dd7SSam Leffler * ref for us as needed. 213519ad2dd7SSam Leffler */ 213603475bd0SAdrian Chadd /* XXX fix this (not required anymore). */ 213719ad2dd7SSam Leffler ieee80211_ref_node(ni); 213803475bd0SAdrian Chadd /* XXX useless */ 2139f62121ceSSam Leffler ieee80211_send_nulldata(ni); 21408a1b9b6aSSam Leffler /* XXX stat? */ 214103475bd0SAdrian Chadd return; 21428a1b9b6aSSam Leffler } 21438a1b9b6aSSam Leffler } 2144b032f27cSSam Leffler if ((vap->iv_flags_ext & IEEE80211_FEXT_INACT) && 2145c066143cSSam Leffler ni->ni_inact <= 0) { 2146b032f27cSSam Leffler IEEE80211_NOTE(vap, 2147f66d97f6SSam Leffler IEEE80211_MSG_INACT | IEEE80211_MSG_NODE, ni, 2148f66d97f6SSam Leffler "station timed out due to inactivity " 2149f66d97f6SSam Leffler "(refcnt %u)", ieee80211_node_refcnt(ni)); 21508a1b9b6aSSam Leffler /* 21518a1b9b6aSSam Leffler * Send a deauthenticate frame and drop the station. 21528a1b9b6aSSam Leffler * This is somewhat complicated due to reference counts 21538a1b9b6aSSam Leffler * and locking. At this point a station will typically 215403475bd0SAdrian Chadd * have a reference count of 2. ieee80211_node_leave 21558a1b9b6aSSam Leffler * will do a "free" of the node which will drop the 21568a1b9b6aSSam Leffler * reference count. But in the meantime a reference 21578a1b9b6aSSam Leffler * wil be held by the deauth frame. The actual reclaim 21588a1b9b6aSSam Leffler * of the node will happen either after the tx is 21598a1b9b6aSSam Leffler * completed or by ieee80211_node_leave. 21608a1b9b6aSSam Leffler */ 21618a1b9b6aSSam Leffler if (ni->ni_associd != 0) { 2162b032f27cSSam Leffler IEEE80211_SEND_MGMT(ni, 21631a1e1d21SSam Leffler IEEE80211_FC0_SUBTYPE_DEAUTH, 21641a1e1d21SSam Leffler IEEE80211_REASON_AUTH_EXPIRE); 21658a1b9b6aSSam Leffler } 2166b032f27cSSam Leffler ieee80211_node_leave(ni); 2167b032f27cSSam Leffler vap->iv_stats.is_node_timeout++; 2168303ebc3cSSam Leffler } 21691a1e1d21SSam Leffler } 21708a1b9b6aSSam Leffler 217103475bd0SAdrian Chadd /* 217203475bd0SAdrian Chadd * Timeout inactive stations and do related housekeeping. 217303475bd0SAdrian Chadd */ 217403475bd0SAdrian Chadd static void 217503475bd0SAdrian Chadd ieee80211_timeout_stations(struct ieee80211com *ic) 217603475bd0SAdrian Chadd { 217703475bd0SAdrian Chadd struct ieee80211_node_table *nt = &ic->ic_sta; 217803475bd0SAdrian Chadd 217903475bd0SAdrian Chadd ieee80211_iterate_nodes(nt, timeout_stations, NULL); 218068e8e04eSSam Leffler } 21818a1b9b6aSSam Leffler 2182b032f27cSSam Leffler /* 2183b032f27cSSam Leffler * Aggressively reclaim resources. This should be used 2184b032f27cSSam Leffler * only in a critical situation to reclaim mbuf resources. 2185b032f27cSSam Leffler */ 2186b032f27cSSam Leffler void 2187b032f27cSSam Leffler ieee80211_drain(struct ieee80211com *ic) 2188b032f27cSSam Leffler { 2189b032f27cSSam Leffler struct ieee80211_node_table *nt = &ic->ic_sta; 2190b032f27cSSam Leffler struct ieee80211vap *vap; 2191b032f27cSSam Leffler struct ieee80211_node *ni; 2192b032f27cSSam Leffler 2193b032f27cSSam Leffler IEEE80211_NODE_LOCK(nt); 2194b032f27cSSam Leffler TAILQ_FOREACH(ni, &nt->nt_node, ni_list) { 2195b032f27cSSam Leffler /* 2196b032f27cSSam Leffler * Ignore entries for which have yet to receive an 2197b032f27cSSam Leffler * authentication frame. These are transient and 2198b032f27cSSam Leffler * will be reclaimed when the last reference to them 2199b032f27cSSam Leffler * goes away (when frame xmits complete). 2200b032f27cSSam Leffler */ 2201b032f27cSSam Leffler vap = ni->ni_vap; 2202b032f27cSSam Leffler /* 2203b032f27cSSam Leffler * Only process stations when in RUN state. This 2204b032f27cSSam Leffler * insures, for example, that we don't timeout an 2205b032f27cSSam Leffler * inactive station during CAC. Note that CSA state 2206b032f27cSSam Leffler * is actually handled in ieee80211_node_timeout as 2207b032f27cSSam Leffler * it applies to more than timeout processing. 2208b032f27cSSam Leffler */ 2209b032f27cSSam Leffler if (vap->iv_state != IEEE80211_S_RUN) 2210b032f27cSSam Leffler continue; 2211b032f27cSSam Leffler /* XXX can vap be NULL? */ 2212b032f27cSSam Leffler if ((vap->iv_opmode == IEEE80211_M_HOSTAP || 2213b032f27cSSam Leffler vap->iv_opmode == IEEE80211_M_STA) && 2214b032f27cSSam Leffler (ni->ni_flags & IEEE80211_NODE_AREF) == 0) 2215b032f27cSSam Leffler continue; 2216b032f27cSSam Leffler /* 2217b032f27cSSam Leffler * Free fragments. 2218b032f27cSSam Leffler * XXX doesn't belong here, move to node_drain 2219b032f27cSSam Leffler */ 2220b032f27cSSam Leffler if (ni->ni_rxfrag[0] != NULL) { 2221b032f27cSSam Leffler m_freem(ni->ni_rxfrag[0]); 2222b032f27cSSam Leffler ni->ni_rxfrag[0] = NULL; 2223b032f27cSSam Leffler } 2224b032f27cSSam Leffler /* 2225b032f27cSSam Leffler * Drain resources held by the station. 2226b032f27cSSam Leffler */ 2227b032f27cSSam Leffler ic->ic_node_drain(ni); 2228b032f27cSSam Leffler } 2229b032f27cSSam Leffler IEEE80211_NODE_UNLOCK(nt); 2230b032f27cSSam Leffler } 2231b032f27cSSam Leffler 2232b032f27cSSam Leffler /* 2233b032f27cSSam Leffler * Per-ieee80211com inactivity timer callback. 2234b032f27cSSam Leffler */ 223568e8e04eSSam Leffler void 223668e8e04eSSam Leffler ieee80211_node_timeout(void *arg) 223768e8e04eSSam Leffler { 223868e8e04eSSam Leffler struct ieee80211com *ic = arg; 223968e8e04eSSam Leffler 2240b032f27cSSam Leffler /* 2241b032f27cSSam Leffler * Defer timeout processing if a channel switch is pending. 2242b032f27cSSam Leffler * We typically need to be mute so not doing things that 2243b032f27cSSam Leffler * might generate frames is good to handle in one place. 2244a4641f4eSPedro F. Giffuni * Suppressing the station timeout processing may extend the 2245b032f27cSSam Leffler * lifetime of inactive stations (by not decrementing their 2246b032f27cSSam Leffler * idle counters) but this should be ok unless the CSA is 2247b032f27cSSam Leffler * active for an unusually long time. 2248b032f27cSSam Leffler */ 2249b032f27cSSam Leffler if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0) { 225068e8e04eSSam Leffler ieee80211_scan_timeout(ic); 2251b032f27cSSam Leffler ieee80211_timeout_stations(ic); 22525b16c28cSSam Leffler ieee80211_ageq_age(&ic->ic_stageq, IEEE80211_INACT_WAIT); 225368e8e04eSSam Leffler 2254b105a069SSam Leffler IEEE80211_LOCK(ic); 2255b105a069SSam Leffler ieee80211_erp_timeout(ic); 22561b6167d2SSam Leffler ieee80211_ht_timeout(ic); 2257b105a069SSam Leffler IEEE80211_UNLOCK(ic); 2258b032f27cSSam Leffler } 225968e8e04eSSam Leffler callout_reset(&ic->ic_inact, IEEE80211_INACT_WAIT*hz, 226068e8e04eSSam Leffler ieee80211_node_timeout, ic); 22611a1e1d21SSam Leffler } 22621a1e1d21SSam Leffler 22637d684b4bSAdrian Chadd /* 22647d684b4bSAdrian Chadd * Iterate over the node table and return an array of ref'ed nodes. 22657d684b4bSAdrian Chadd * 22667d684b4bSAdrian Chadd * This is separated out from calling the actual node function so that 22677d684b4bSAdrian Chadd * no LORs will occur. 22687d684b4bSAdrian Chadd * 22697d684b4bSAdrian Chadd * If there are too many nodes (ie, the number of nodes doesn't fit 22707d684b4bSAdrian Chadd * within 'max_aid' entries) then the node references will be freed 22717d684b4bSAdrian Chadd * and an error will be returned. 22727d684b4bSAdrian Chadd * 22737d684b4bSAdrian Chadd * The responsibility of allocating and freeing "ni_arr" is up to 22747d684b4bSAdrian Chadd * the caller. 22757d684b4bSAdrian Chadd */ 22767d684b4bSAdrian Chadd int 22777d684b4bSAdrian Chadd ieee80211_iterate_nt(struct ieee80211_node_table *nt, 22787d684b4bSAdrian Chadd struct ieee80211_node **ni_arr, uint16_t max_aid) 22797d684b4bSAdrian Chadd { 22807d684b4bSAdrian Chadd int i, j, ret; 22817d684b4bSAdrian Chadd struct ieee80211_node *ni; 22827d684b4bSAdrian Chadd 22837d684b4bSAdrian Chadd IEEE80211_NODE_LOCK(nt); 22847d684b4bSAdrian Chadd 22857d684b4bSAdrian Chadd i = ret = 0; 22867d684b4bSAdrian Chadd TAILQ_FOREACH(ni, &nt->nt_node, ni_list) { 22877d684b4bSAdrian Chadd if (i >= max_aid) { 22887d684b4bSAdrian Chadd ret = E2BIG; 2289c8f5794eSGleb Smirnoff ic_printf(nt->nt_ic, "Node array overflow: max=%u", 2290c8f5794eSGleb Smirnoff max_aid); 22917d684b4bSAdrian Chadd break; 22927d684b4bSAdrian Chadd } 22937d684b4bSAdrian Chadd ni_arr[i] = ieee80211_ref_node(ni); 22947d684b4bSAdrian Chadd i++; 22957d684b4bSAdrian Chadd } 22967d684b4bSAdrian Chadd 22977d684b4bSAdrian Chadd /* 22987d684b4bSAdrian Chadd * It's safe to unlock here. 22997d684b4bSAdrian Chadd * 23007d684b4bSAdrian Chadd * If we're successful, the list is returned. 23017d684b4bSAdrian Chadd * If we're unsuccessful, the list is ignored 23027d684b4bSAdrian Chadd * and we remove our references. 23037d684b4bSAdrian Chadd * 23047d684b4bSAdrian Chadd * This avoids any potential LOR with 23057d684b4bSAdrian Chadd * ieee80211_free_node(). 23067d684b4bSAdrian Chadd */ 23077d684b4bSAdrian Chadd IEEE80211_NODE_UNLOCK(nt); 23087d684b4bSAdrian Chadd 23097d684b4bSAdrian Chadd /* 23107d684b4bSAdrian Chadd * If ret is non-zero, we hit some kind of error. 23117d684b4bSAdrian Chadd * Rather than walking some nodes, we'll walk none 23127d684b4bSAdrian Chadd * of them. 23137d684b4bSAdrian Chadd */ 23147d684b4bSAdrian Chadd if (ret) { 23157d684b4bSAdrian Chadd for (j = 0; j < i; j++) { 23167d684b4bSAdrian Chadd /* ieee80211_free_node() locks by itself */ 23177d684b4bSAdrian Chadd ieee80211_free_node(ni_arr[j]); 23187d684b4bSAdrian Chadd } 23197d684b4bSAdrian Chadd } 23207d684b4bSAdrian Chadd 23217d684b4bSAdrian Chadd return (ret); 23227d684b4bSAdrian Chadd } 23237d684b4bSAdrian Chadd 23247d684b4bSAdrian Chadd /* 23257d684b4bSAdrian Chadd * Just a wrapper, so we don't have to change every ieee80211_iterate_nodes() 23267d684b4bSAdrian Chadd * reference in the source. 23277d684b4bSAdrian Chadd * 23287d684b4bSAdrian Chadd * Note that this fetches 'max_aid' from the first VAP, rather than finding 23297d684b4bSAdrian Chadd * the largest max_aid from all VAPs. 23307d684b4bSAdrian Chadd */ 23311a1e1d21SSam Leffler void 2332b032f27cSSam Leffler ieee80211_iterate_nodes(struct ieee80211_node_table *nt, 2333b032f27cSSam Leffler ieee80211_iter_func *f, void *arg) 23341a1e1d21SSam Leffler { 23357d684b4bSAdrian Chadd struct ieee80211_node **ni_arr; 2336b6afbb79SAdrian Chadd size_t size; 23377d684b4bSAdrian Chadd int i; 23387d684b4bSAdrian Chadd uint16_t max_aid; 23397b5a3435SAdrian Chadd struct ieee80211vap *vap; 23401a1e1d21SSam Leffler 23417b5a3435SAdrian Chadd /* Overdoing it default */ 23427b5a3435SAdrian Chadd max_aid = IEEE80211_AID_MAX; 23437b5a3435SAdrian Chadd 23447b5a3435SAdrian Chadd /* Handle the case of there being no vaps just yet */ 23457b5a3435SAdrian Chadd vap = TAILQ_FIRST(&nt->nt_ic->ic_vaps); 23467b5a3435SAdrian Chadd if (vap != NULL) 23477b5a3435SAdrian Chadd max_aid = vap->iv_max_aid; 23487b5a3435SAdrian Chadd 23497d684b4bSAdrian Chadd size = max_aid * sizeof(struct ieee80211_node *); 2350b9b53389SAdrian Chadd ni_arr = (struct ieee80211_node **) IEEE80211_MALLOC(size, M_80211_NODE, 2351b9b53389SAdrian Chadd IEEE80211_M_NOWAIT | IEEE80211_M_ZERO); 23527d684b4bSAdrian Chadd if (ni_arr == NULL) 23537d684b4bSAdrian Chadd return; 23548a1b9b6aSSam Leffler 23557d684b4bSAdrian Chadd /* 23567d684b4bSAdrian Chadd * If this fails, the node table won't have any 23577d684b4bSAdrian Chadd * valid entries - ieee80211_iterate_nt() frees 23587d684b4bSAdrian Chadd * the references to them. So don't try walking 23597d684b4bSAdrian Chadd * the table; just skip to the end and free the 23607d684b4bSAdrian Chadd * temporary memory. 23617d684b4bSAdrian Chadd */ 2362b6afbb79SAdrian Chadd if (ieee80211_iterate_nt(nt, ni_arr, max_aid) != 0) 23637d684b4bSAdrian Chadd goto done; 23647d684b4bSAdrian Chadd 23657d684b4bSAdrian Chadd for (i = 0; i < max_aid; i++) { 23667d684b4bSAdrian Chadd if (ni_arr[i] == NULL) /* end of the list */ 23677d684b4bSAdrian Chadd break; 23687d684b4bSAdrian Chadd (*f)(arg, ni_arr[i]); 23697d684b4bSAdrian Chadd /* ieee80211_free_node() locks by itself */ 23707d684b4bSAdrian Chadd ieee80211_free_node(ni_arr[i]); 23717d684b4bSAdrian Chadd } 23727d684b4bSAdrian Chadd 23737d684b4bSAdrian Chadd done: 2374b9b53389SAdrian Chadd IEEE80211_FREE(ni_arr, M_80211_NODE); 23758a1b9b6aSSam Leffler } 23768a1b9b6aSSam Leffler 23778a1b9b6aSSam Leffler void 23788a1b9b6aSSam Leffler ieee80211_dump_node(struct ieee80211_node_table *nt, struct ieee80211_node *ni) 23798a1b9b6aSSam Leffler { 23808a1b9b6aSSam Leffler printf("0x%p: mac %s refcnt %d\n", ni, 23818a1b9b6aSSam Leffler ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)); 238203475bd0SAdrian Chadd printf("\tauthmode %u flags 0x%x\n", 238303475bd0SAdrian Chadd ni->ni_authmode, ni->ni_flags); 23848a1b9b6aSSam Leffler printf("\tassocid 0x%x txpower %u vlan %u\n", 23858a1b9b6aSSam Leffler ni->ni_associd, ni->ni_txpower, ni->ni_vlan); 23868a1b9b6aSSam Leffler printf("\ttxseq %u rxseq %u fragno %u rxfragstamp %u\n", 2387801df4a5SSam Leffler ni->ni_txseqs[IEEE80211_NONQOS_TID], 2388801df4a5SSam Leffler ni->ni_rxseqs[IEEE80211_NONQOS_TID] >> IEEE80211_SEQ_SEQ_SHIFT, 2389801df4a5SSam Leffler ni->ni_rxseqs[IEEE80211_NONQOS_TID] & IEEE80211_SEQ_FRAG_MASK, 23908a1b9b6aSSam Leffler ni->ni_rxfragstamp); 23915463c4a4SSam Leffler printf("\trssi %d noise %d intval %u capinfo 0x%x\n", 23925463c4a4SSam Leffler node_getrssi(ni), ni->ni_noise, 239368e8e04eSSam Leffler ni->ni_intval, ni->ni_capinfo); 23948a1b9b6aSSam Leffler printf("\tbssid %s essid \"%.*s\" channel %u:0x%x\n", 23958a1b9b6aSSam Leffler ether_sprintf(ni->ni_bssid), 23968a1b9b6aSSam Leffler ni->ni_esslen, ni->ni_essid, 23978a1b9b6aSSam Leffler ni->ni_chan->ic_freq, ni->ni_chan->ic_flags); 2398be1054edSSam Leffler printf("\tinact %u inact_reload %u txrate %u\n", 2399be1054edSSam Leffler ni->ni_inact, ni->ni_inact_reload, ni->ni_txrate); 240068e8e04eSSam Leffler printf("\thtcap %x htparam %x htctlchan %u ht2ndchan %u\n", 240168e8e04eSSam Leffler ni->ni_htcap, ni->ni_htparam, 240268e8e04eSSam Leffler ni->ni_htctlchan, ni->ni_ht2ndchan); 240368e8e04eSSam Leffler printf("\thtopmode %x htstbc %x chw %u\n", 240468e8e04eSSam Leffler ni->ni_htopmode, ni->ni_htstbc, ni->ni_chw); 24058a1b9b6aSSam Leffler } 24068a1b9b6aSSam Leffler 24078a1b9b6aSSam Leffler void 24088a1b9b6aSSam Leffler ieee80211_dump_nodes(struct ieee80211_node_table *nt) 24098a1b9b6aSSam Leffler { 24108a1b9b6aSSam Leffler ieee80211_iterate_nodes(nt, 24118a1b9b6aSSam Leffler (ieee80211_iter_func *) ieee80211_dump_node, nt); 24128a1b9b6aSSam Leffler } 24138a1b9b6aSSam Leffler 24142dc4d8dcSSam Leffler static void 24152dc4d8dcSSam Leffler ieee80211_notify_erp_locked(struct ieee80211com *ic) 2416b105a069SSam Leffler { 2417b032f27cSSam Leffler struct ieee80211vap *vap; 2418b032f27cSSam Leffler 2419b032f27cSSam Leffler IEEE80211_LOCK_ASSERT(ic); 2420b032f27cSSam Leffler 2421b032f27cSSam Leffler TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 2422b032f27cSSam Leffler if (vap->iv_opmode == IEEE80211_M_HOSTAP) 2423b032f27cSSam Leffler ieee80211_beacon_notify(vap, IEEE80211_BEACON_ERP); 2424b105a069SSam Leffler } 2425b105a069SSam Leffler 24262dc4d8dcSSam Leffler void 24272dc4d8dcSSam Leffler ieee80211_notify_erp(struct ieee80211com *ic) 24282dc4d8dcSSam Leffler { 24292dc4d8dcSSam Leffler IEEE80211_LOCK(ic); 24302dc4d8dcSSam Leffler ieee80211_notify_erp_locked(ic); 24312dc4d8dcSSam Leffler IEEE80211_UNLOCK(ic); 24322dc4d8dcSSam Leffler } 24332dc4d8dcSSam Leffler 24348a1b9b6aSSam Leffler /* 24358a1b9b6aSSam Leffler * Handle a station joining an 11g network. 24368a1b9b6aSSam Leffler */ 24378a1b9b6aSSam Leffler static void 2438b032f27cSSam Leffler ieee80211_node_join_11g(struct ieee80211_node *ni) 24398a1b9b6aSSam Leffler { 2440b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 24418a1b9b6aSSam Leffler 24421b6167d2SSam Leffler IEEE80211_LOCK_ASSERT(ic); 24431b6167d2SSam Leffler 24448a1b9b6aSSam Leffler /* 24458a1b9b6aSSam Leffler * Station isn't capable of short slot time. Bump 24468a1b9b6aSSam Leffler * the count of long slot time stations and disable 24478a1b9b6aSSam Leffler * use of short slot time. Note that the actual switch 24488a1b9b6aSSam Leffler * over to long slot time use may not occur until the 24498a1b9b6aSSam Leffler * next beacon transmission (per sec. 7.3.1.4 of 11g). 24508a1b9b6aSSam Leffler */ 24518a1b9b6aSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) == 0) { 24528a1b9b6aSSam Leffler ic->ic_longslotsta++; 2453b032f27cSSam Leffler IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni, 2454b105a069SSam Leffler "station needs long slot time, count %d", 2455b105a069SSam Leffler ic->ic_longslotsta); 24568a1b9b6aSSam Leffler /* XXX vap's w/ conflicting needs won't work */ 245768e8e04eSSam Leffler if (!IEEE80211_IS_CHAN_108G(ic->ic_bsschan)) { 245868e8e04eSSam Leffler /* 245968e8e04eSSam Leffler * Don't force slot time when switched to turbo 246068e8e04eSSam Leffler * mode as non-ERP stations won't be present; this 246168e8e04eSSam Leffler * need only be done when on the normal G channel. 246268e8e04eSSam Leffler */ 24638a1b9b6aSSam Leffler ieee80211_set_shortslottime(ic, 0); 24648a1b9b6aSSam Leffler } 246568e8e04eSSam Leffler } 24668a1b9b6aSSam Leffler /* 24678a1b9b6aSSam Leffler * If the new station is not an ERP station 24688a1b9b6aSSam Leffler * then bump the counter and enable protection 24698a1b9b6aSSam Leffler * if configured. 24708a1b9b6aSSam Leffler */ 2471b032f27cSSam Leffler if (!ieee80211_iserp_rateset(&ni->ni_rates)) { 24728a1b9b6aSSam Leffler ic->ic_nonerpsta++; 2473b032f27cSSam Leffler IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni, 2474b105a069SSam Leffler "station is !ERP, %d non-ERP stations associated", 2475b105a069SSam Leffler ic->ic_nonerpsta); 24768a1b9b6aSSam Leffler /* 24778a1b9b6aSSam Leffler * If station does not support short preamble 24788a1b9b6aSSam Leffler * then we must enable use of Barker preamble. 24798a1b9b6aSSam Leffler */ 24808a1b9b6aSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE) == 0) { 2481b032f27cSSam Leffler IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni, 2482b105a069SSam Leffler "%s", "station needs long preamble"); 24838a1b9b6aSSam Leffler ic->ic_flags |= IEEE80211_F_USEBARKER; 24848a1b9b6aSSam Leffler ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE; 24858a1b9b6aSSam Leffler } 2486b105a069SSam Leffler /* 2487b032f27cSSam Leffler * If protection is configured and this is the first 2488b032f27cSSam Leffler * indication we should use protection, enable it. 2489b105a069SSam Leffler */ 2490b105a069SSam Leffler if (ic->ic_protmode != IEEE80211_PROT_NONE && 2491b105a069SSam Leffler ic->ic_nonerpsta == 1 && 2492b105a069SSam Leffler (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) == 0) { 2493b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_ASSOC, 2494b105a069SSam Leffler "%s: enable use of protection\n", __func__); 2495b105a069SSam Leffler ic->ic_flags |= IEEE80211_F_USEPROT; 24962dc4d8dcSSam Leffler ieee80211_notify_erp_locked(ic); 2497b105a069SSam Leffler } 24988a1b9b6aSSam Leffler } else 24998a1b9b6aSSam Leffler ni->ni_flags |= IEEE80211_NODE_ERP; 25008a1b9b6aSSam Leffler } 25018a1b9b6aSSam Leffler 25028a1b9b6aSSam Leffler void 2503b032f27cSSam Leffler ieee80211_node_join(struct ieee80211_node *ni, int resp) 25048a1b9b6aSSam Leffler { 2505b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 2506b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 25078a1b9b6aSSam Leffler int newassoc; 25088a1b9b6aSSam Leffler 25098a1b9b6aSSam Leffler if (ni->ni_associd == 0) { 251068e8e04eSSam Leffler uint16_t aid; 25118a1b9b6aSSam Leffler 2512b032f27cSSam Leffler KASSERT(vap->iv_aid_bitmap != NULL, ("no aid bitmap")); 25138a1b9b6aSSam Leffler /* 25148a1b9b6aSSam Leffler * It would be good to search the bitmap 25158a1b9b6aSSam Leffler * more efficiently, but this will do for now. 25168a1b9b6aSSam Leffler */ 2517b032f27cSSam Leffler for (aid = 1; aid < vap->iv_max_aid; aid++) { 2518b032f27cSSam Leffler if (!IEEE80211_AID_ISSET(vap, aid)) 25198a1b9b6aSSam Leffler break; 25208a1b9b6aSSam Leffler } 2521b032f27cSSam Leffler if (aid >= vap->iv_max_aid) { 252213f91245SSam Leffler IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_TOOMANY); 2523b032f27cSSam Leffler ieee80211_node_leave(ni); 25248a1b9b6aSSam Leffler return; 25258a1b9b6aSSam Leffler } 25268a1b9b6aSSam Leffler ni->ni_associd = aid | 0xc000; 25271b6167d2SSam Leffler ni->ni_jointime = time_uptime; 2528b032f27cSSam Leffler IEEE80211_LOCK(ic); 2529b032f27cSSam Leffler IEEE80211_AID_SET(vap, ni->ni_associd); 2530b032f27cSSam Leffler vap->iv_sta_assoc++; 25318a1b9b6aSSam Leffler ic->ic_sta_assoc++; 25321b6167d2SSam Leffler 25331b6167d2SSam Leffler if (IEEE80211_IS_CHAN_HT(ic->ic_bsschan)) 25341b6167d2SSam Leffler ieee80211_ht_node_join(ni); 253568e8e04eSSam Leffler if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) && 253668e8e04eSSam Leffler IEEE80211_IS_CHAN_FULL(ic->ic_bsschan)) 2537b032f27cSSam Leffler ieee80211_node_join_11g(ni); 25381b6167d2SSam Leffler IEEE80211_UNLOCK(ic); 25391b6167d2SSam Leffler 25401b6167d2SSam Leffler newassoc = 1; 25418a1b9b6aSSam Leffler } else 25428a1b9b6aSSam Leffler newassoc = 0; 25438a1b9b6aSSam Leffler 2544b032f27cSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_DEBUG, ni, 254544f7a6edSSam Leffler "station associated at aid %d: %s preamble, %s slot time%s%s%s%s%s%s%s%s", 2546b8fcf546SSam Leffler IEEE80211_NODE_AID(ni), 2547b8fcf546SSam Leffler ic->ic_flags & IEEE80211_F_SHPREAMBLE ? "short" : "long", 2548b8fcf546SSam Leffler ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long", 2549b8fcf546SSam Leffler ic->ic_flags & IEEE80211_F_USEPROT ? ", protection" : "", 255068e8e04eSSam Leffler ni->ni_flags & IEEE80211_NODE_QOS ? ", QoS" : "", 255168e8e04eSSam Leffler ni->ni_flags & IEEE80211_NODE_HT ? 25520f52b1c4SSam Leffler (ni->ni_chw == 40 ? ", HT40" : ", HT20") : "", 25531b6167d2SSam Leffler ni->ni_flags & IEEE80211_NODE_AMPDU ? " (+AMPDU)" : "", 25548c070d69SSam Leffler ni->ni_flags & IEEE80211_NODE_MIMO_RTS ? " (+SMPS-DYN)" : 25558c070d69SSam Leffler ni->ni_flags & IEEE80211_NODE_MIMO_PS ? " (+SMPS)" : "", 255644f7a6edSSam Leffler ni->ni_flags & IEEE80211_NODE_RIFS ? " (+RIFS)" : "", 2557b032f27cSSam Leffler IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_FF) ? 255868e8e04eSSam Leffler ", fast-frames" : "", 2559b032f27cSSam Leffler IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_TURBOP) ? 256068e8e04eSSam Leffler ", turbo" : "" 2561b8fcf546SSam Leffler ); 25628a1b9b6aSSam Leffler 2563d77148fbSSam Leffler ieee80211_node_setuptxparms(ni); 256449d2c137SBernhard Schmidt ieee80211_ratectl_node_init(ni); 25658a1b9b6aSSam Leffler /* give driver a chance to setup state like ni_txrate */ 2566736b3dc3SSam Leffler if (ic->ic_newassoc != NULL) 2567e9962332SSam Leffler ic->ic_newassoc(ni, newassoc); 2568b032f27cSSam Leffler IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_SUCCESS); 25698a1b9b6aSSam Leffler /* tell the authenticator about new station */ 2570b032f27cSSam Leffler if (vap->iv_auth->ia_node_join != NULL) 2571b032f27cSSam Leffler vap->iv_auth->ia_node_join(ni); 2572b032f27cSSam Leffler ieee80211_notify_node_join(ni, 2573ce8977dfSSam Leffler resp == IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 25748a1b9b6aSSam Leffler } 25758a1b9b6aSSam Leffler 2576b105a069SSam Leffler static void 2577b105a069SSam Leffler disable_protection(struct ieee80211com *ic) 2578b105a069SSam Leffler { 2579b105a069SSam Leffler KASSERT(ic->ic_nonerpsta == 0 && 2580b105a069SSam Leffler (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) == 0, 2581b105a069SSam Leffler ("%d non ERP stations, flags 0x%x", ic->ic_nonerpsta, 2582b105a069SSam Leffler ic->ic_flags_ext)); 2583b105a069SSam Leffler 2584b105a069SSam Leffler ic->ic_flags &= ~IEEE80211_F_USEPROT; 2585b105a069SSam Leffler /* XXX verify mode? */ 2586b105a069SSam Leffler if (ic->ic_caps & IEEE80211_C_SHPREAMBLE) { 2587b105a069SSam Leffler ic->ic_flags |= IEEE80211_F_SHPREAMBLE; 2588b105a069SSam Leffler ic->ic_flags &= ~IEEE80211_F_USEBARKER; 2589b105a069SSam Leffler } 25902dc4d8dcSSam Leffler ieee80211_notify_erp_locked(ic); 2591b105a069SSam Leffler } 2592b105a069SSam Leffler 25938a1b9b6aSSam Leffler /* 25948a1b9b6aSSam Leffler * Handle a station leaving an 11g network. 25958a1b9b6aSSam Leffler */ 25968a1b9b6aSSam Leffler static void 2597b032f27cSSam Leffler ieee80211_node_leave_11g(struct ieee80211_node *ni) 25988a1b9b6aSSam Leffler { 2599b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 26008a1b9b6aSSam Leffler 26011b6167d2SSam Leffler IEEE80211_LOCK_ASSERT(ic); 26021b6167d2SSam Leffler 260368e8e04eSSam Leffler KASSERT(IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan), 2604b032f27cSSam Leffler ("not in 11g, bss %u:0x%x", ic->ic_bsschan->ic_freq, 2605b032f27cSSam Leffler ic->ic_bsschan->ic_flags)); 26068a1b9b6aSSam Leffler 26078a1b9b6aSSam Leffler /* 26088a1b9b6aSSam Leffler * If a long slot station do the slot time bookkeeping. 26098a1b9b6aSSam Leffler */ 26108a1b9b6aSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) == 0) { 26118a1b9b6aSSam Leffler KASSERT(ic->ic_longslotsta > 0, 26128a1b9b6aSSam Leffler ("bogus long slot station count %d", ic->ic_longslotsta)); 26138a1b9b6aSSam Leffler ic->ic_longslotsta--; 2614b032f27cSSam Leffler IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni, 2615b105a069SSam Leffler "long slot time station leaves, count now %d", 2616b105a069SSam Leffler ic->ic_longslotsta); 26178a1b9b6aSSam Leffler if (ic->ic_longslotsta == 0) { 26188a1b9b6aSSam Leffler /* 26198a1b9b6aSSam Leffler * Re-enable use of short slot time if supported 26208a1b9b6aSSam Leffler * and not operating in IBSS mode (per spec). 26218a1b9b6aSSam Leffler */ 26228a1b9b6aSSam Leffler if ((ic->ic_caps & IEEE80211_C_SHSLOT) && 26238a1b9b6aSSam Leffler ic->ic_opmode != IEEE80211_M_IBSS) { 2624b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, 2625b032f27cSSam Leffler IEEE80211_MSG_ASSOC, 26268a1b9b6aSSam Leffler "%s: re-enable use of short slot time\n", 26278a1b9b6aSSam Leffler __func__); 26288a1b9b6aSSam Leffler ieee80211_set_shortslottime(ic, 1); 26298a1b9b6aSSam Leffler } 26308a1b9b6aSSam Leffler } 26318a1b9b6aSSam Leffler } 26328a1b9b6aSSam Leffler /* 26338a1b9b6aSSam Leffler * If a non-ERP station do the protection-related bookkeeping. 26348a1b9b6aSSam Leffler */ 26358a1b9b6aSSam Leffler if ((ni->ni_flags & IEEE80211_NODE_ERP) == 0) { 26368a1b9b6aSSam Leffler KASSERT(ic->ic_nonerpsta > 0, 26378a1b9b6aSSam Leffler ("bogus non-ERP station count %d", ic->ic_nonerpsta)); 26388a1b9b6aSSam Leffler ic->ic_nonerpsta--; 2639b032f27cSSam Leffler IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni, 2640b105a069SSam Leffler "non-ERP station leaves, count now %d%s", ic->ic_nonerpsta, 2641b105a069SSam Leffler (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) ? 2642b105a069SSam Leffler " (non-ERP sta present)" : ""); 2643b105a069SSam Leffler if (ic->ic_nonerpsta == 0 && 2644b105a069SSam Leffler (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) == 0) { 2645b032f27cSSam Leffler IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_ASSOC, 26468a1b9b6aSSam Leffler "%s: disable use of protection\n", __func__); 2647b105a069SSam Leffler disable_protection(ic); 2648b105a069SSam Leffler } 2649b105a069SSam Leffler } 2650b105a069SSam Leffler } 2651b105a069SSam Leffler 2652b105a069SSam Leffler /* 2653b105a069SSam Leffler * Time out presence of an overlapping bss with non-ERP 2654b105a069SSam Leffler * stations. When operating in hostap mode we listen for 2655b105a069SSam Leffler * beacons from other stations and if we identify a non-ERP 2656b105a069SSam Leffler * station is present we enable protection. To identify 2657b105a069SSam Leffler * when all non-ERP stations are gone we time out this 2658b105a069SSam Leffler * condition. 2659b105a069SSam Leffler */ 2660b105a069SSam Leffler static void 2661b105a069SSam Leffler ieee80211_erp_timeout(struct ieee80211com *ic) 2662b105a069SSam Leffler { 2663b105a069SSam Leffler 2664b105a069SSam Leffler IEEE80211_LOCK_ASSERT(ic); 2665b105a069SSam Leffler 2666b105a069SSam Leffler if ((ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) && 2667b8e29e06SAdrian Chadd ieee80211_time_after(ticks, ic->ic_lastnonerp + IEEE80211_NONERP_PRESENT_AGE)) { 2668b032f27cSSam Leffler #if 0 2669b032f27cSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC, ni, 2670b032f27cSSam Leffler "%s", "age out non-ERP sta present on channel"); 2671b032f27cSSam Leffler #endif 2672b105a069SSam Leffler ic->ic_flags_ext &= ~IEEE80211_FEXT_NONERP_PR; 2673b105a069SSam Leffler if (ic->ic_nonerpsta == 0) 2674b105a069SSam Leffler disable_protection(ic); 26758a1b9b6aSSam Leffler } 26768a1b9b6aSSam Leffler } 26778a1b9b6aSSam Leffler 26788a1b9b6aSSam Leffler /* 26798a1b9b6aSSam Leffler * Handle bookkeeping for station deauthentication/disassociation 26808a1b9b6aSSam Leffler * when operating as an ap. 26818a1b9b6aSSam Leffler */ 26828a1b9b6aSSam Leffler void 2683b032f27cSSam Leffler ieee80211_node_leave(struct ieee80211_node *ni) 26848a1b9b6aSSam Leffler { 2685b032f27cSSam Leffler struct ieee80211com *ic = ni->ni_ic; 2686b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 268744acc00dSSam Leffler struct ieee80211_node_table *nt = ni->ni_table; 26888a1b9b6aSSam Leffler 2689b032f27cSSam Leffler IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_DEBUG, ni, 2690b105a069SSam Leffler "station with aid %d leaves", IEEE80211_NODE_AID(ni)); 26918a1b9b6aSSam Leffler 2692b032f27cSSam Leffler KASSERT(vap->iv_opmode != IEEE80211_M_STA, 2693b032f27cSSam Leffler ("unexpected operating mode %u", vap->iv_opmode)); 26948a1b9b6aSSam Leffler /* 26958a1b9b6aSSam Leffler * If node wasn't previously associated all 26968a1b9b6aSSam Leffler * we need to do is reclaim the reference. 26978a1b9b6aSSam Leffler */ 26988a1b9b6aSSam Leffler /* XXX ibss mode bypasses 11g and notification */ 26998a1b9b6aSSam Leffler if (ni->ni_associd == 0) 27008a1b9b6aSSam Leffler goto done; 27018a1b9b6aSSam Leffler /* 27028a1b9b6aSSam Leffler * Tell the authenticator the station is leaving. 27038a1b9b6aSSam Leffler * Note that we must do this before yanking the 27048a1b9b6aSSam Leffler * association id as the authenticator uses the 27058a1b9b6aSSam Leffler * associd to locate it's state block. 27068a1b9b6aSSam Leffler */ 2707b032f27cSSam Leffler if (vap->iv_auth->ia_node_leave != NULL) 2708b032f27cSSam Leffler vap->iv_auth->ia_node_leave(ni); 27091b6167d2SSam Leffler 27101b6167d2SSam Leffler IEEE80211_LOCK(ic); 2711b032f27cSSam Leffler IEEE80211_AID_CLR(vap, ni->ni_associd); 2712b032f27cSSam Leffler vap->iv_sta_assoc--; 27138a1b9b6aSSam Leffler ic->ic_sta_assoc--; 27148a1b9b6aSSam Leffler 27151b6167d2SSam Leffler if (IEEE80211_IS_CHAN_HT(ic->ic_bsschan)) 27161b6167d2SSam Leffler ieee80211_ht_node_leave(ni); 271768e8e04eSSam Leffler if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) && 271868e8e04eSSam Leffler IEEE80211_IS_CHAN_FULL(ic->ic_bsschan)) 2719b032f27cSSam Leffler ieee80211_node_leave_11g(ni); 27201b6167d2SSam Leffler IEEE80211_UNLOCK(ic); 27218a1b9b6aSSam Leffler /* 27228a1b9b6aSSam Leffler * Cleanup station state. In particular clear various 27238a1b9b6aSSam Leffler * state that might otherwise be reused if the node 27248a1b9b6aSSam Leffler * is reused before the reference count goes to zero 27258a1b9b6aSSam Leffler * (and memory is reclaimed). 27268a1b9b6aSSam Leffler */ 2727b032f27cSSam Leffler ieee80211_sta_leave(ni); 27288a1b9b6aSSam Leffler done: 272944acc00dSSam Leffler /* 273044acc00dSSam Leffler * Remove the node from any table it's recorded in and 273144acc00dSSam Leffler * drop the caller's reference. Removal from the table 273244acc00dSSam Leffler * is important to insure the node is not reprocessed 273344acc00dSSam Leffler * for inactivity. 273444acc00dSSam Leffler */ 273544acc00dSSam Leffler if (nt != NULL) { 273644acc00dSSam Leffler IEEE80211_NODE_LOCK(nt); 273744acc00dSSam Leffler node_reclaim(nt, ni); 273844acc00dSSam Leffler IEEE80211_NODE_UNLOCK(nt); 273944acc00dSSam Leffler } else 27408a1b9b6aSSam Leffler ieee80211_free_node(ni); 27418a1b9b6aSSam Leffler } 27428a1b9b6aSSam Leffler 2743b032f27cSSam Leffler struct rssiinfo { 2744b032f27cSSam Leffler struct ieee80211vap *vap; 2745b032f27cSSam Leffler int rssi_samples; 2746b032f27cSSam Leffler uint32_t rssi_total; 2747b032f27cSSam Leffler }; 2748b032f27cSSam Leffler 2749b032f27cSSam Leffler static void 2750b032f27cSSam Leffler get_hostap_rssi(void *arg, struct ieee80211_node *ni) 2751b032f27cSSam Leffler { 2752b032f27cSSam Leffler struct rssiinfo *info = arg; 2753b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 2754b032f27cSSam Leffler int8_t rssi; 2755b032f27cSSam Leffler 2756b032f27cSSam Leffler if (info->vap != vap) 2757b032f27cSSam Leffler return; 2758b032f27cSSam Leffler /* only associated stations */ 2759b032f27cSSam Leffler if (ni->ni_associd == 0) 2760b032f27cSSam Leffler return; 2761b032f27cSSam Leffler rssi = vap->iv_ic->ic_node_getrssi(ni); 2762b032f27cSSam Leffler if (rssi != 0) { 2763b032f27cSSam Leffler info->rssi_samples++; 2764b032f27cSSam Leffler info->rssi_total += rssi; 2765b032f27cSSam Leffler } 2766b032f27cSSam Leffler } 2767b032f27cSSam Leffler 2768b032f27cSSam Leffler static void 2769b032f27cSSam Leffler get_adhoc_rssi(void *arg, struct ieee80211_node *ni) 2770b032f27cSSam Leffler { 2771b032f27cSSam Leffler struct rssiinfo *info = arg; 2772b032f27cSSam Leffler struct ieee80211vap *vap = ni->ni_vap; 2773b032f27cSSam Leffler int8_t rssi; 2774b032f27cSSam Leffler 2775b032f27cSSam Leffler if (info->vap != vap) 2776b032f27cSSam Leffler return; 2777b032f27cSSam Leffler /* only neighbors */ 2778b032f27cSSam Leffler /* XXX check bssid */ 2779b032f27cSSam Leffler if ((ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) == 0) 2780b032f27cSSam Leffler return; 2781b032f27cSSam Leffler rssi = vap->iv_ic->ic_node_getrssi(ni); 2782b032f27cSSam Leffler if (rssi != 0) { 2783b032f27cSSam Leffler info->rssi_samples++; 2784b032f27cSSam Leffler info->rssi_total += rssi; 2785b032f27cSSam Leffler } 2786b032f27cSSam Leffler } 2787b032f27cSSam Leffler 278859aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 278959aa14a9SRui Paulo static void 279059aa14a9SRui Paulo get_mesh_rssi(void *arg, struct ieee80211_node *ni) 279159aa14a9SRui Paulo { 279259aa14a9SRui Paulo struct rssiinfo *info = arg; 279359aa14a9SRui Paulo struct ieee80211vap *vap = ni->ni_vap; 279459aa14a9SRui Paulo int8_t rssi; 279559aa14a9SRui Paulo 279659aa14a9SRui Paulo if (info->vap != vap) 279759aa14a9SRui Paulo return; 279859aa14a9SRui Paulo /* only neighbors that peered successfully */ 279959aa14a9SRui Paulo if (ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) 280059aa14a9SRui Paulo return; 280159aa14a9SRui Paulo rssi = vap->iv_ic->ic_node_getrssi(ni); 280259aa14a9SRui Paulo if (rssi != 0) { 280359aa14a9SRui Paulo info->rssi_samples++; 280459aa14a9SRui Paulo info->rssi_total += rssi; 280559aa14a9SRui Paulo } 280659aa14a9SRui Paulo } 280759aa14a9SRui Paulo #endif /* IEEE80211_SUPPORT_MESH */ 280859aa14a9SRui Paulo 280968e8e04eSSam Leffler int8_t 2810b032f27cSSam Leffler ieee80211_getrssi(struct ieee80211vap *vap) 28118a1b9b6aSSam Leffler { 28128a1b9b6aSSam Leffler #define NZ(x) ((x) == 0 ? 1 : (x)) 2813b032f27cSSam Leffler struct ieee80211com *ic = vap->iv_ic; 2814b032f27cSSam Leffler struct rssiinfo info; 28158a1b9b6aSSam Leffler 2816b032f27cSSam Leffler info.rssi_total = 0; 2817b032f27cSSam Leffler info.rssi_samples = 0; 2818b032f27cSSam Leffler info.vap = vap; 2819b032f27cSSam Leffler switch (vap->iv_opmode) { 28208a1b9b6aSSam Leffler case IEEE80211_M_IBSS: /* average of all ibss neighbors */ 28218a1b9b6aSSam Leffler case IEEE80211_M_AHDEMO: /* average of all neighbors */ 2822b032f27cSSam Leffler ieee80211_iterate_nodes(&ic->ic_sta, get_adhoc_rssi, &info); 2823b032f27cSSam Leffler break; 28248a1b9b6aSSam Leffler case IEEE80211_M_HOSTAP: /* average of all associated stations */ 2825b032f27cSSam Leffler ieee80211_iterate_nodes(&ic->ic_sta, get_hostap_rssi, &info); 28268a1b9b6aSSam Leffler break; 282759aa14a9SRui Paulo #ifdef IEEE80211_SUPPORT_MESH 282859aa14a9SRui Paulo case IEEE80211_M_MBSS: /* average of all mesh neighbors */ 282959aa14a9SRui Paulo ieee80211_iterate_nodes(&ic->ic_sta, get_mesh_rssi, &info); 283059aa14a9SRui Paulo break; 283159aa14a9SRui Paulo #endif 28328a1b9b6aSSam Leffler case IEEE80211_M_MONITOR: /* XXX */ 28338a1b9b6aSSam Leffler case IEEE80211_M_STA: /* use stats from associated ap */ 28348a1b9b6aSSam Leffler default: 2835b032f27cSSam Leffler if (vap->iv_bss != NULL) 2836b032f27cSSam Leffler info.rssi_total = ic->ic_node_getrssi(vap->iv_bss); 2837b032f27cSSam Leffler info.rssi_samples = 1; 28388a1b9b6aSSam Leffler break; 28398a1b9b6aSSam Leffler } 2840b032f27cSSam Leffler return info.rssi_total / NZ(info.rssi_samples); 28418a1b9b6aSSam Leffler #undef NZ 28428a1b9b6aSSam Leffler } 28438a1b9b6aSSam Leffler 284468e8e04eSSam Leffler void 2845b032f27cSSam Leffler ieee80211_getsignal(struct ieee80211vap *vap, int8_t *rssi, int8_t *noise) 28468a1b9b6aSSam Leffler { 28478a1b9b6aSSam Leffler 2848b032f27cSSam Leffler if (vap->iv_bss == NULL) /* NB: shouldn't happen */ 284968e8e04eSSam Leffler return; 2850b032f27cSSam Leffler vap->iv_ic->ic_node_getsignal(vap->iv_bss, rssi, noise); 285168e8e04eSSam Leffler /* for non-station mode return avg'd rssi accounting */ 2852b032f27cSSam Leffler if (vap->iv_opmode != IEEE80211_M_STA) 2853b032f27cSSam Leffler *rssi = ieee80211_getrssi(vap); 28548a1b9b6aSSam Leffler } 2855