132176cfdSRui Paulo /*-
2f186073cSJoerg Sonnenberger * Copyright (c) 2001 Atsushi Onoe
332176cfdSRui Paulo * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
4f186073cSJoerg Sonnenberger * All rights reserved.
5f186073cSJoerg Sonnenberger *
6f186073cSJoerg Sonnenberger * Redistribution and use in source and binary forms, with or without
7f186073cSJoerg Sonnenberger * modification, are permitted provided that the following conditions
8f186073cSJoerg Sonnenberger * are met:
9f186073cSJoerg Sonnenberger * 1. Redistributions of source code must retain the above copyright
10f186073cSJoerg Sonnenberger * notice, this list of conditions and the following disclaimer.
11f186073cSJoerg Sonnenberger * 2. Redistributions in binary form must reproduce the above copyright
12f186073cSJoerg Sonnenberger * notice, this list of conditions and the following disclaimer in the
13f186073cSJoerg Sonnenberger * documentation and/or other materials provided with the distribution.
14f186073cSJoerg Sonnenberger *
15f186073cSJoerg Sonnenberger * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16f186073cSJoerg Sonnenberger * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17f186073cSJoerg Sonnenberger * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18f186073cSJoerg Sonnenberger * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19f186073cSJoerg Sonnenberger * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20f186073cSJoerg Sonnenberger * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21f186073cSJoerg Sonnenberger * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22f186073cSJoerg Sonnenberger * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23f186073cSJoerg Sonnenberger * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24f186073cSJoerg Sonnenberger * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25f186073cSJoerg Sonnenberger */
26f186073cSJoerg Sonnenberger
27085ff963SMatthew Dillon #include <sys/cdefs.h>
28085ff963SMatthew Dillon __FBSDID("$FreeBSD$");
29085ff963SMatthew Dillon
3032176cfdSRui Paulo #include "opt_wlan.h"
3132176cfdSRui Paulo
32f186073cSJoerg Sonnenberger #include <sys/param.h>
33f186073cSJoerg Sonnenberger #include <sys/systm.h>
34f186073cSJoerg Sonnenberger #include <sys/mbuf.h>
35f186073cSJoerg Sonnenberger #include <sys/malloc.h>
36f186073cSJoerg Sonnenberger #include <sys/kernel.h>
37f186073cSJoerg Sonnenberger
38841ab66cSSepherosa Ziehau #include <sys/socket.h>
39f186073cSJoerg Sonnenberger
40f186073cSJoerg Sonnenberger #include <net/if.h>
41085ff963SMatthew Dillon #include <net/if_var.h>
42841ab66cSSepherosa Ziehau #include <net/if_media.h>
43f186073cSJoerg Sonnenberger #include <net/ethernet.h>
44f186073cSJoerg Sonnenberger
45f186073cSJoerg Sonnenberger #include <netproto/802_11/ieee80211_var.h>
4632176cfdSRui Paulo #include <netproto/802_11/ieee80211_input.h>
4732176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
4832176cfdSRui Paulo #include <netproto/802_11/ieee80211_superg.h>
4932176cfdSRui Paulo #endif
5032176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_TDMA
5132176cfdSRui Paulo #include <netproto/802_11/ieee80211_tdma.h>
5232176cfdSRui Paulo #endif
5332176cfdSRui Paulo #include <netproto/802_11/ieee80211_wds.h>
5432176cfdSRui Paulo #include <netproto/802_11/ieee80211_mesh.h>
554028af95SRui Paulo #include <netproto/802_11/ieee80211_ratectl.h>
56f186073cSJoerg Sonnenberger
57f186073cSJoerg Sonnenberger #include <net/bpf.h>
58f186073cSJoerg Sonnenberger
59841ab66cSSepherosa Ziehau /*
6032176cfdSRui Paulo * IEEE80211_NODE_HASHSIZE must be a power of 2.
6132176cfdSRui Paulo */
62*161c3d83SSascha Wildner CTASSERT(powerof2(IEEE80211_NODE_HASHSIZE));
6332176cfdSRui Paulo
6432176cfdSRui Paulo /*
65841ab66cSSepherosa Ziehau * Association id's are managed with a bit vector.
66841ab66cSSepherosa Ziehau */
6732176cfdSRui Paulo #define IEEE80211_AID_SET(_vap, b) \
6832176cfdSRui Paulo ((_vap)->iv_aid_bitmap[IEEE80211_AID(b) / 32] |= \
6932176cfdSRui Paulo (1 << (IEEE80211_AID(b) % 32)))
7032176cfdSRui Paulo #define IEEE80211_AID_CLR(_vap, b) \
7132176cfdSRui Paulo ((_vap)->iv_aid_bitmap[IEEE80211_AID(b) / 32] &= \
7232176cfdSRui Paulo ~(1 << (IEEE80211_AID(b) % 32)))
7332176cfdSRui Paulo #define IEEE80211_AID_ISSET(_vap, b) \
7432176cfdSRui Paulo ((_vap)->iv_aid_bitmap[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32)))
75f186073cSJoerg Sonnenberger
765d004897SSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
775d004897SSepherosa Ziehau #define REFCNT_LOC "%s (%s:%u) %p<%s> refcnt %d\n", __func__, func, line
785d004897SSepherosa Ziehau #else
795d004897SSepherosa Ziehau #define REFCNT_LOC "%s %p<%s> refcnt %d\n", __func__
805d004897SSepherosa Ziehau #endif
815d004897SSepherosa Ziehau
8232176cfdSRui Paulo static int ieee80211_sta_join1(struct ieee80211_node *);
8332176cfdSRui Paulo
8432176cfdSRui Paulo static struct ieee80211_node *node_alloc(struct ieee80211vap *,
8532176cfdSRui Paulo const uint8_t [IEEE80211_ADDR_LEN]);
86841ab66cSSepherosa Ziehau static void node_cleanup(struct ieee80211_node *);
87841ab66cSSepherosa Ziehau static void node_free(struct ieee80211_node *);
8832176cfdSRui Paulo static void node_age(struct ieee80211_node *);
8932176cfdSRui Paulo static int8_t node_getrssi(const struct ieee80211_node *);
9032176cfdSRui Paulo static void node_getsignal(const struct ieee80211_node *, int8_t *, int8_t *);
9132176cfdSRui Paulo static void node_getmimoinfo(const struct ieee80211_node *,
9232176cfdSRui Paulo struct ieee80211_mimo_info *);
93f186073cSJoerg Sonnenberger
94841ab66cSSepherosa Ziehau static void _ieee80211_free_node(struct ieee80211_node *);
95841ab66cSSepherosa Ziehau
964f898719SImre Vadász static void node_reclaim(struct ieee80211_node_table *nt,
974f898719SImre Vadász struct ieee80211_node *ni);
98841ab66cSSepherosa Ziehau static void ieee80211_node_table_init(struct ieee80211com *ic,
99841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt, const char *name,
10032176cfdSRui Paulo int inact, int keymaxix);
10132176cfdSRui Paulo static void ieee80211_node_table_reset(struct ieee80211_node_table *,
10232176cfdSRui Paulo struct ieee80211vap *);
103841ab66cSSepherosa Ziehau static void ieee80211_node_table_cleanup(struct ieee80211_node_table *nt);
10432176cfdSRui Paulo static void ieee80211_erp_timeout(struct ieee80211com *);
105f186073cSJoerg Sonnenberger
106f186073cSJoerg Sonnenberger MALLOC_DEFINE(M_80211_NODE, "80211node", "802.11 node state");
10732176cfdSRui Paulo MALLOC_DEFINE(M_80211_NODE_IE, "80211nodeie", "802.11 node ie");
108f186073cSJoerg Sonnenberger
109f186073cSJoerg Sonnenberger void
ieee80211_node_attach(struct ieee80211com * ic)110841ab66cSSepherosa Ziehau ieee80211_node_attach(struct ieee80211com *ic)
111f186073cSJoerg Sonnenberger {
11232176cfdSRui Paulo /* XXX really want maxlen enforced per-sta */
11332176cfdSRui Paulo ieee80211_ageq_init(&ic->ic_stageq, ic->ic_max_keyix * 8,
11432176cfdSRui Paulo "802.11 staging q");
11532176cfdSRui Paulo ieee80211_node_table_init(ic, &ic->ic_sta, "station",
11632176cfdSRui Paulo IEEE80211_INACT_INIT, ic->ic_max_keyix);
1174f655ef5SMatthew Dillon #if defined(__DragonFly__)
11834a60cf6SRui Paulo callout_init_mp(&ic->ic_inact);
1194f655ef5SMatthew Dillon #else
1204f655ef5SMatthew Dillon callout_init(&ic->ic_inact, 1);
1214f655ef5SMatthew Dillon #endif
12232176cfdSRui Paulo callout_reset(&ic->ic_inact, IEEE80211_INACT_WAIT*hz,
123085ff963SMatthew Dillon ieee80211_node_timeout, ic);
12432176cfdSRui Paulo
125841ab66cSSepherosa Ziehau ic->ic_node_alloc = node_alloc;
126841ab66cSSepherosa Ziehau ic->ic_node_free = node_free;
127841ab66cSSepherosa Ziehau ic->ic_node_cleanup = node_cleanup;
12832176cfdSRui Paulo ic->ic_node_age = node_age;
12932176cfdSRui Paulo ic->ic_node_drain = node_age; /* NB: same as age */
130841ab66cSSepherosa Ziehau ic->ic_node_getrssi = node_getrssi;
13132176cfdSRui Paulo ic->ic_node_getsignal = node_getsignal;
13232176cfdSRui Paulo ic->ic_node_getmimoinfo = node_getmimoinfo;
133841ab66cSSepherosa Ziehau
134841ab66cSSepherosa Ziehau /*
13532176cfdSRui Paulo * Set flags to be propagated to all vap's;
13632176cfdSRui Paulo * these define default behaviour/configuration.
137841ab66cSSepherosa Ziehau */
13832176cfdSRui Paulo ic->ic_flags_ext |= IEEE80211_FEXT_INACT; /* inactivity processing */
139f186073cSJoerg Sonnenberger }
140f186073cSJoerg Sonnenberger
141f186073cSJoerg Sonnenberger void
ieee80211_node_detach(struct ieee80211com * ic)142841ab66cSSepherosa Ziehau ieee80211_node_detach(struct ieee80211com *ic)
143f186073cSJoerg Sonnenberger {
14432176cfdSRui Paulo
145085ff963SMatthew Dillon callout_drain(&ic->ic_inact);
146841ab66cSSepherosa Ziehau ieee80211_node_table_cleanup(&ic->ic_sta);
14732176cfdSRui Paulo ieee80211_ageq_cleanup(&ic->ic_stageq);
148841ab66cSSepherosa Ziehau }
14932176cfdSRui Paulo
15032176cfdSRui Paulo void
ieee80211_node_vattach(struct ieee80211vap * vap)15132176cfdSRui Paulo ieee80211_node_vattach(struct ieee80211vap *vap)
15232176cfdSRui Paulo {
15332176cfdSRui Paulo /* NB: driver can override */
15432176cfdSRui Paulo vap->iv_max_aid = IEEE80211_AID_DEF;
15532176cfdSRui Paulo
15632176cfdSRui Paulo /* default station inactivity timer setings */
15732176cfdSRui Paulo vap->iv_inact_init = IEEE80211_INACT_INIT;
15832176cfdSRui Paulo vap->iv_inact_auth = IEEE80211_INACT_AUTH;
15932176cfdSRui Paulo vap->iv_inact_run = IEEE80211_INACT_RUN;
16032176cfdSRui Paulo vap->iv_inact_probe = IEEE80211_INACT_PROBE;
16132176cfdSRui Paulo
16232176cfdSRui Paulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_INACT,
16332176cfdSRui Paulo "%s: init %u auth %u run %u probe %u\n", __func__,
16432176cfdSRui Paulo vap->iv_inact_init, vap->iv_inact_auth,
16532176cfdSRui Paulo vap->iv_inact_run, vap->iv_inact_probe);
16632176cfdSRui Paulo }
16732176cfdSRui Paulo
16832176cfdSRui Paulo void
ieee80211_node_latevattach(struct ieee80211vap * vap)16932176cfdSRui Paulo ieee80211_node_latevattach(struct ieee80211vap *vap)
17032176cfdSRui Paulo {
17132176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
17232176cfdSRui Paulo /* XXX should we allow max aid to be zero? */
17332176cfdSRui Paulo if (vap->iv_max_aid < IEEE80211_AID_MIN) {
17432176cfdSRui Paulo vap->iv_max_aid = IEEE80211_AID_MIN;
17532176cfdSRui Paulo if_printf(vap->iv_ifp,
17632176cfdSRui Paulo "WARNING: max aid too small, changed to %d\n",
17732176cfdSRui Paulo vap->iv_max_aid);
17832176cfdSRui Paulo }
1794f655ef5SMatthew Dillon #if defined(__DragonFly__)
18032176cfdSRui Paulo vap->iv_aid_bitmap = (uint32_t *) kmalloc(
18132176cfdSRui Paulo howmany(vap->iv_max_aid, 32) * sizeof(uint32_t),
182fcaa651dSRui Paulo M_80211_NODE, M_INTWAIT | M_ZERO);
1834f655ef5SMatthew Dillon #else
1844f655ef5SMatthew Dillon vap->iv_aid_bitmap = (uint32_t *) IEEE80211_MALLOC(
1854f655ef5SMatthew Dillon howmany(vap->iv_max_aid, 32) * sizeof(uint32_t),
1864f655ef5SMatthew Dillon M_80211_NODE,
1874f655ef5SMatthew Dillon IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1884f655ef5SMatthew Dillon #endif
18932176cfdSRui Paulo if (vap->iv_aid_bitmap == NULL) {
19032176cfdSRui Paulo /* XXX no way to recover */
19132176cfdSRui Paulo kprintf("%s: no memory for AID bitmap, max aid %d!\n",
19232176cfdSRui Paulo __func__, vap->iv_max_aid);
19332176cfdSRui Paulo vap->iv_max_aid = 0;
19432176cfdSRui Paulo }
19532176cfdSRui Paulo }
19632176cfdSRui Paulo
19732176cfdSRui Paulo ieee80211_reset_bss(vap);
19832176cfdSRui Paulo
19932176cfdSRui Paulo vap->iv_auth = ieee80211_authenticator_get(vap->iv_bss->ni_authmode);
20032176cfdSRui Paulo }
20132176cfdSRui Paulo
20232176cfdSRui Paulo void
ieee80211_node_vdetach(struct ieee80211vap * vap)20332176cfdSRui Paulo ieee80211_node_vdetach(struct ieee80211vap *vap)
20432176cfdSRui Paulo {
20532176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
20632176cfdSRui Paulo
20732176cfdSRui Paulo ieee80211_node_table_reset(&ic->ic_sta, vap);
20832176cfdSRui Paulo if (vap->iv_bss != NULL) {
20932176cfdSRui Paulo ieee80211_free_node(vap->iv_bss);
21032176cfdSRui Paulo vap->iv_bss = NULL;
21132176cfdSRui Paulo }
21232176cfdSRui Paulo if (vap->iv_aid_bitmap != NULL) {
2134f655ef5SMatthew Dillon IEEE80211_FREE(vap->iv_aid_bitmap, M_80211_NODE);
21432176cfdSRui Paulo vap->iv_aid_bitmap = NULL;
215841ab66cSSepherosa Ziehau }
216841ab66cSSepherosa Ziehau }
217f186073cSJoerg Sonnenberger
218841ab66cSSepherosa Ziehau /*
219841ab66cSSepherosa Ziehau * Port authorize/unauthorize interfaces for use by an authenticator.
220841ab66cSSepherosa Ziehau */
221841ab66cSSepherosa Ziehau
222841ab66cSSepherosa Ziehau void
ieee80211_node_authorize(struct ieee80211_node * ni)223841ab66cSSepherosa Ziehau ieee80211_node_authorize(struct ieee80211_node *ni)
224841ab66cSSepherosa Ziehau {
22532176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
226841ab66cSSepherosa Ziehau
227841ab66cSSepherosa Ziehau ni->ni_flags |= IEEE80211_NODE_AUTH;
22832176cfdSRui Paulo ni->ni_inact_reload = vap->iv_inact_run;
22932176cfdSRui Paulo ni->ni_inact = ni->ni_inact_reload;
23032176cfdSRui Paulo
23132176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
23232176cfdSRui Paulo "%s: inact_reload %u", __func__, ni->ni_inact_reload);
233841ab66cSSepherosa Ziehau }
234841ab66cSSepherosa Ziehau
235841ab66cSSepherosa Ziehau void
ieee80211_node_unauthorize(struct ieee80211_node * ni)236841ab66cSSepherosa Ziehau ieee80211_node_unauthorize(struct ieee80211_node *ni)
237841ab66cSSepherosa Ziehau {
23832176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
23932176cfdSRui Paulo
240841ab66cSSepherosa Ziehau ni->ni_flags &= ~IEEE80211_NODE_AUTH;
24132176cfdSRui Paulo ni->ni_inact_reload = vap->iv_inact_auth;
24232176cfdSRui Paulo if (ni->ni_inact > ni->ni_inact_reload)
24332176cfdSRui Paulo ni->ni_inact = ni->ni_inact_reload;
24432176cfdSRui Paulo
24532176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
24632176cfdSRui Paulo "%s: inact_reload %u inact %u", __func__,
24732176cfdSRui Paulo ni->ni_inact_reload, ni->ni_inact);
24832176cfdSRui Paulo }
24932176cfdSRui Paulo
25032176cfdSRui Paulo /*
25132176cfdSRui Paulo * Fix tx parameters for a node according to ``association state''.
25232176cfdSRui Paulo */
25332176cfdSRui Paulo void
ieee80211_node_setuptxparms(struct ieee80211_node * ni)25432176cfdSRui Paulo ieee80211_node_setuptxparms(struct ieee80211_node *ni)
25532176cfdSRui Paulo {
25632176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
25732176cfdSRui Paulo enum ieee80211_phymode mode;
25832176cfdSRui Paulo
25932176cfdSRui Paulo if (ni->ni_flags & IEEE80211_NODE_HT) {
26032176cfdSRui Paulo if (IEEE80211_IS_CHAN_5GHZ(ni->ni_chan))
26132176cfdSRui Paulo mode = IEEE80211_MODE_11NA;
26232176cfdSRui Paulo else
26332176cfdSRui Paulo mode = IEEE80211_MODE_11NG;
26432176cfdSRui Paulo } else { /* legacy rate handling */
26532176cfdSRui Paulo if (IEEE80211_IS_CHAN_ST(ni->ni_chan))
26632176cfdSRui Paulo mode = IEEE80211_MODE_STURBO_A;
26732176cfdSRui Paulo else if (IEEE80211_IS_CHAN_HALF(ni->ni_chan))
26832176cfdSRui Paulo mode = IEEE80211_MODE_HALF;
26932176cfdSRui Paulo else if (IEEE80211_IS_CHAN_QUARTER(ni->ni_chan))
27032176cfdSRui Paulo mode = IEEE80211_MODE_QUARTER;
27132176cfdSRui Paulo /* NB: 108A should be handled as 11a */
27232176cfdSRui Paulo else if (IEEE80211_IS_CHAN_A(ni->ni_chan))
27332176cfdSRui Paulo mode = IEEE80211_MODE_11A;
27432176cfdSRui Paulo else if (IEEE80211_IS_CHAN_108G(ni->ni_chan) ||
27532176cfdSRui Paulo (ni->ni_flags & IEEE80211_NODE_ERP))
27632176cfdSRui Paulo mode = IEEE80211_MODE_11G;
27732176cfdSRui Paulo else
27832176cfdSRui Paulo mode = IEEE80211_MODE_11B;
27932176cfdSRui Paulo }
28032176cfdSRui Paulo ni->ni_txparms = &vap->iv_txparms[mode];
281841ab66cSSepherosa Ziehau }
282841ab66cSSepherosa Ziehau
283841ab66cSSepherosa Ziehau /*
284841ab66cSSepherosa Ziehau * Set/change the channel. The rate set is also updated as
285841ab66cSSepherosa Ziehau * to insure a consistent view by drivers.
28632176cfdSRui Paulo * XXX should be private but hostap needs it to deal with CSA
287841ab66cSSepherosa Ziehau */
28832176cfdSRui Paulo void
ieee80211_node_set_chan(struct ieee80211_node * ni,struct ieee80211_channel * chan)28932176cfdSRui Paulo ieee80211_node_set_chan(struct ieee80211_node *ni,
29032176cfdSRui Paulo struct ieee80211_channel *chan)
291841ab66cSSepherosa Ziehau {
29232176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
29332176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
29432176cfdSRui Paulo enum ieee80211_phymode mode;
29532176cfdSRui Paulo
29632176cfdSRui Paulo KASSERT(chan != IEEE80211_CHAN_ANYC, ("no channel"));
29732176cfdSRui Paulo
298841ab66cSSepherosa Ziehau ni->ni_chan = chan;
29932176cfdSRui Paulo mode = ieee80211_chan2mode(chan);
30032176cfdSRui Paulo if (IEEE80211_IS_CHAN_HT(chan)) {
30132176cfdSRui Paulo /*
302085ff963SMatthew Dillon * We must install the legacy rate est in ni_rates and the
30332176cfdSRui Paulo * HT rate set in ni_htrates.
30432176cfdSRui Paulo */
30532176cfdSRui Paulo ni->ni_htrates = *ieee80211_get_suphtrates(ic, chan);
30632176cfdSRui Paulo /*
30732176cfdSRui Paulo * Setup bss tx parameters based on operating mode. We
30832176cfdSRui Paulo * use legacy rates when operating in a mixed HT+non-HT bss
30932176cfdSRui Paulo * and non-ERP rates in 11g for mixed ERP+non-ERP bss.
31032176cfdSRui Paulo */
31132176cfdSRui Paulo if (mode == IEEE80211_MODE_11NA &&
31232176cfdSRui Paulo (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0)
31332176cfdSRui Paulo mode = IEEE80211_MODE_11A;
31432176cfdSRui Paulo else if (mode == IEEE80211_MODE_11NG &&
31532176cfdSRui Paulo (vap->iv_flags_ht & IEEE80211_FHT_PUREN) == 0)
31632176cfdSRui Paulo mode = IEEE80211_MODE_11G;
31732176cfdSRui Paulo if (mode == IEEE80211_MODE_11G &&
31832176cfdSRui Paulo (vap->iv_flags & IEEE80211_F_PUREG) == 0)
31932176cfdSRui Paulo mode = IEEE80211_MODE_11B;
320f186073cSJoerg Sonnenberger }
32132176cfdSRui Paulo ni->ni_txparms = &vap->iv_txparms[mode];
32232176cfdSRui Paulo ni->ni_rates = *ieee80211_get_suprates(ic, chan);
323841ab66cSSepherosa Ziehau }
324841ab66cSSepherosa Ziehau
325841ab66cSSepherosa Ziehau static __inline void
copy_bss(struct ieee80211_node * nbss,const struct ieee80211_node * obss)326841ab66cSSepherosa Ziehau copy_bss(struct ieee80211_node *nbss, const struct ieee80211_node *obss)
327841ab66cSSepherosa Ziehau {
328841ab66cSSepherosa Ziehau /* propagate useful state */
329841ab66cSSepherosa Ziehau nbss->ni_authmode = obss->ni_authmode;
330841ab66cSSepherosa Ziehau nbss->ni_txpower = obss->ni_txpower;
331841ab66cSSepherosa Ziehau nbss->ni_vlan = obss->ni_vlan;
332841ab66cSSepherosa Ziehau /* XXX statistics? */
33332176cfdSRui Paulo /* XXX legacy WDS bssid? */
334f186073cSJoerg Sonnenberger }
335f186073cSJoerg Sonnenberger
336f186073cSJoerg Sonnenberger void
ieee80211_create_ibss(struct ieee80211vap * vap,struct ieee80211_channel * chan)33732176cfdSRui Paulo ieee80211_create_ibss(struct ieee80211vap* vap, struct ieee80211_channel *chan)
338f186073cSJoerg Sonnenberger {
33932176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
340f186073cSJoerg Sonnenberger struct ieee80211_node *ni;
341f186073cSJoerg Sonnenberger
34232176cfdSRui Paulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3434f655ef5SMatthew Dillon "%s: creating %s on channel %u%c\n", __func__,
34432176cfdSRui Paulo ieee80211_opmode_name[vap->iv_opmode],
3454f655ef5SMatthew Dillon ieee80211_chan2ieee(ic, chan),
3464f655ef5SMatthew Dillon ieee80211_channel_type_char(chan));
347841ab66cSSepherosa Ziehau
34832176cfdSRui Paulo ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->iv_myaddr);
349841ab66cSSepherosa Ziehau if (ni == NULL) {
350841ab66cSSepherosa Ziehau /* XXX recovery? */
351841ab66cSSepherosa Ziehau return;
352841ab66cSSepherosa Ziehau }
35332176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_myaddr);
35432176cfdSRui Paulo ni->ni_esslen = vap->iv_des_ssid[0].len;
35532176cfdSRui Paulo memcpy(ni->ni_essid, vap->iv_des_ssid[0].ssid, ni->ni_esslen);
35632176cfdSRui Paulo if (vap->iv_bss != NULL)
35732176cfdSRui Paulo copy_bss(ni, vap->iv_bss);
358841ab66cSSepherosa Ziehau ni->ni_intval = ic->ic_bintval;
35932176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_PRIVACY)
360f186073cSJoerg Sonnenberger ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY;
361f186073cSJoerg Sonnenberger if (ic->ic_phytype == IEEE80211_T_FH) {
362f186073cSJoerg Sonnenberger ni->ni_fhdwell = 200; /* XXX */
363f186073cSJoerg Sonnenberger ni->ni_fhindex = 1;
364f186073cSJoerg Sonnenberger }
36532176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_IBSS) {
36632176cfdSRui Paulo vap->iv_flags |= IEEE80211_F_SIBSS;
367841ab66cSSepherosa Ziehau ni->ni_capinfo |= IEEE80211_CAPINFO_IBSS; /* XXX */
36832176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_DESBSSID)
36932176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_des_bssid);
37032176cfdSRui Paulo else {
371215bf50cSSepherosa Ziehau get_random_bytes(ni->ni_bssid, IEEE80211_ADDR_LEN);
37232176cfdSRui Paulo /* clear group bit, add local bit */
373215bf50cSSepherosa Ziehau ni->ni_bssid[0] = (ni->ni_bssid[0] &~ 0x01) | 0x02;
374215bf50cSSepherosa Ziehau }
37532176cfdSRui Paulo } else if (vap->iv_opmode == IEEE80211_M_AHDEMO) {
37632176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_DESBSSID)
37732176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_des_bssid);
378841ab66cSSepherosa Ziehau else
37932176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_TDMA
38032176cfdSRui Paulo if ((vap->iv_caps & IEEE80211_C_TDMA) == 0)
38132176cfdSRui Paulo #endif
382841ab66cSSepherosa Ziehau memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN);
38332176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
38432176cfdSRui Paulo } else if (vap->iv_opmode == IEEE80211_M_MBSS) {
38532176cfdSRui Paulo ni->ni_meshidlen = vap->iv_mesh->ms_idlen;
38632176cfdSRui Paulo memcpy(ni->ni_meshid, vap->iv_mesh->ms_id, ni->ni_meshidlen);
38732176cfdSRui Paulo #endif
388841ab66cSSepherosa Ziehau }
389841ab66cSSepherosa Ziehau /*
390841ab66cSSepherosa Ziehau * Fix the channel and related attributes.
391841ab66cSSepherosa Ziehau */
39232176cfdSRui Paulo /* clear DFS CAC state on previous channel */
39332176cfdSRui Paulo if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
39432176cfdSRui Paulo ic->ic_bsschan->ic_freq != chan->ic_freq &&
39532176cfdSRui Paulo IEEE80211_IS_CHAN_CACDONE(ic->ic_bsschan))
39632176cfdSRui Paulo ieee80211_dfs_cac_clear(ic, ic->ic_bsschan);
39732176cfdSRui Paulo ic->ic_bsschan = chan;
39832176cfdSRui Paulo ieee80211_node_set_chan(ni, chan);
39932176cfdSRui Paulo ic->ic_curmode = ieee80211_chan2mode(chan);
400841ab66cSSepherosa Ziehau /*
40132176cfdSRui Paulo * Do mode-specific setup.
402841ab66cSSepherosa Ziehau */
40332176cfdSRui Paulo if (IEEE80211_IS_CHAN_FULL(chan)) {
40432176cfdSRui Paulo if (IEEE80211_IS_CHAN_ANYG(chan)) {
40532176cfdSRui Paulo /*
40632176cfdSRui Paulo * Use a mixed 11b/11g basic rate set.
40732176cfdSRui Paulo */
40832176cfdSRui Paulo ieee80211_setbasicrates(&ni->ni_rates,
40932176cfdSRui Paulo IEEE80211_MODE_11G);
41032176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_PUREG) {
41132176cfdSRui Paulo /*
41232176cfdSRui Paulo * Also mark OFDM rates basic so 11b
41332176cfdSRui Paulo * stations do not join (WiFi compliance).
41432176cfdSRui Paulo */
41532176cfdSRui Paulo ieee80211_addbasicrates(&ni->ni_rates,
41632176cfdSRui Paulo IEEE80211_MODE_11A);
41732176cfdSRui Paulo }
41832176cfdSRui Paulo } else if (IEEE80211_IS_CHAN_B(chan)) {
41932176cfdSRui Paulo /*
42032176cfdSRui Paulo * Force pure 11b rate set.
42132176cfdSRui Paulo */
42232176cfdSRui Paulo ieee80211_setbasicrates(&ni->ni_rates,
42332176cfdSRui Paulo IEEE80211_MODE_11B);
42432176cfdSRui Paulo }
425841ab66cSSepherosa Ziehau }
426841ab66cSSepherosa Ziehau
42732176cfdSRui Paulo (void) ieee80211_sta_join1(ieee80211_ref_node(ni));
42832176cfdSRui Paulo }
42932176cfdSRui Paulo
43032176cfdSRui Paulo /*
43132176cfdSRui Paulo * Reset bss state on transition to the INIT state.
43232176cfdSRui Paulo * Clear any stations from the table (they have been
43332176cfdSRui Paulo * deauth'd) and reset the bss node (clears key, rate
43432176cfdSRui Paulo * etc. state).
43532176cfdSRui Paulo */
436841ab66cSSepherosa Ziehau void
ieee80211_reset_bss(struct ieee80211vap * vap)43732176cfdSRui Paulo ieee80211_reset_bss(struct ieee80211vap *vap)
438f186073cSJoerg Sonnenberger {
43932176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
440841ab66cSSepherosa Ziehau struct ieee80211_node *ni, *obss;
441841ab66cSSepherosa Ziehau
44232176cfdSRui Paulo ieee80211_node_table_reset(&ic->ic_sta, vap);
44332176cfdSRui Paulo /* XXX multi-bss: wrong */
44432176cfdSRui Paulo ieee80211_reset_erp(ic);
445841ab66cSSepherosa Ziehau
44632176cfdSRui Paulo ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->iv_myaddr);
4474d770dcfSSascha Wildner KASSERT(ni != NULL, ("unable to setup initial BSS node"));
44832176cfdSRui Paulo obss = vap->iv_bss;
44932176cfdSRui Paulo vap->iv_bss = ieee80211_ref_node(ni);
450841ab66cSSepherosa Ziehau if (obss != NULL) {
451841ab66cSSepherosa Ziehau copy_bss(ni, obss);
452841ab66cSSepherosa Ziehau ni->ni_intval = ic->ic_bintval;
453841ab66cSSepherosa Ziehau ieee80211_free_node(obss);
45432176cfdSRui Paulo } else
45532176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_myaddr);
456841ab66cSSepherosa Ziehau }
457841ab66cSSepherosa Ziehau
458841ab66cSSepherosa Ziehau static int
match_ssid(const struct ieee80211_node * ni,int nssid,const struct ieee80211_scan_ssid ssids[])45932176cfdSRui Paulo match_ssid(const struct ieee80211_node *ni,
46032176cfdSRui Paulo int nssid, const struct ieee80211_scan_ssid ssids[])
461841ab66cSSepherosa Ziehau {
46232176cfdSRui Paulo int i;
46332176cfdSRui Paulo
46432176cfdSRui Paulo for (i = 0; i < nssid; i++) {
46532176cfdSRui Paulo if (ni->ni_esslen == ssids[i].len &&
46632176cfdSRui Paulo memcmp(ni->ni_essid, ssids[i].ssid, ni->ni_esslen) == 0)
46732176cfdSRui Paulo return 1;
46832176cfdSRui Paulo }
46932176cfdSRui Paulo return 0;
47032176cfdSRui Paulo }
47132176cfdSRui Paulo
47232176cfdSRui Paulo /*
47332176cfdSRui Paulo * Test a node for suitability/compatibility.
47432176cfdSRui Paulo */
47532176cfdSRui Paulo static int
check_bss(struct ieee80211vap * vap,struct ieee80211_node * ni)47632176cfdSRui Paulo check_bss(struct ieee80211vap *vap, struct ieee80211_node *ni)
47732176cfdSRui Paulo {
47832176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
47932176cfdSRui Paulo uint8_t rate;
48032176cfdSRui Paulo
48132176cfdSRui Paulo if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ni->ni_chan)))
48232176cfdSRui Paulo return 0;
48332176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_IBSS) {
48432176cfdSRui Paulo if ((ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) == 0)
48532176cfdSRui Paulo return 0;
48632176cfdSRui Paulo } else {
48732176cfdSRui Paulo if ((ni->ni_capinfo & IEEE80211_CAPINFO_ESS) == 0)
48832176cfdSRui Paulo return 0;
48932176cfdSRui Paulo }
49032176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_PRIVACY) {
49132176cfdSRui Paulo if ((ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) == 0)
49232176cfdSRui Paulo return 0;
49332176cfdSRui Paulo } else {
49432176cfdSRui Paulo /* XXX does this mean privacy is supported or required? */
49532176cfdSRui Paulo if (ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY)
49632176cfdSRui Paulo return 0;
49732176cfdSRui Paulo }
49832176cfdSRui Paulo rate = ieee80211_fix_rate(ni, &ni->ni_rates,
49932176cfdSRui Paulo IEEE80211_F_JOIN | IEEE80211_F_DONEGO | IEEE80211_F_DOFRATE);
50032176cfdSRui Paulo if (rate & IEEE80211_RATE_BASIC)
50132176cfdSRui Paulo return 0;
50232176cfdSRui Paulo if (vap->iv_des_nssid != 0 &&
50332176cfdSRui Paulo !match_ssid(ni, vap->iv_des_nssid, vap->iv_des_ssid))
50432176cfdSRui Paulo return 0;
50532176cfdSRui Paulo if ((vap->iv_flags & IEEE80211_F_DESBSSID) &&
50632176cfdSRui Paulo !IEEE80211_ADDR_EQ(vap->iv_des_bssid, ni->ni_bssid))
50732176cfdSRui Paulo return 0;
50832176cfdSRui Paulo return 1;
50932176cfdSRui Paulo }
51032176cfdSRui Paulo
51132176cfdSRui Paulo #ifdef IEEE80211_DEBUG
51232176cfdSRui Paulo /*
51332176cfdSRui Paulo * Display node suitability/compatibility.
51432176cfdSRui Paulo */
51532176cfdSRui Paulo static void
check_bss_debug(struct ieee80211vap * vap,struct ieee80211_node * ni)51632176cfdSRui Paulo check_bss_debug(struct ieee80211vap *vap, struct ieee80211_node *ni)
51732176cfdSRui Paulo {
51832176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
519f186073cSJoerg Sonnenberger uint8_t rate;
520f186073cSJoerg Sonnenberger int fail;
521f186073cSJoerg Sonnenberger
522f186073cSJoerg Sonnenberger fail = 0;
523f186073cSJoerg Sonnenberger if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, ni->ni_chan)))
524f186073cSJoerg Sonnenberger fail |= 0x01;
52532176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_IBSS) {
526f186073cSJoerg Sonnenberger if ((ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) == 0)
527f186073cSJoerg Sonnenberger fail |= 0x02;
528f186073cSJoerg Sonnenberger } else {
529f186073cSJoerg Sonnenberger if ((ni->ni_capinfo & IEEE80211_CAPINFO_ESS) == 0)
530f186073cSJoerg Sonnenberger fail |= 0x02;
531f186073cSJoerg Sonnenberger }
53232176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_PRIVACY) {
533f186073cSJoerg Sonnenberger if ((ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) == 0)
534f186073cSJoerg Sonnenberger fail |= 0x04;
535f186073cSJoerg Sonnenberger } else {
536f186073cSJoerg Sonnenberger /* XXX does this mean privacy is supported or required? */
537f186073cSJoerg Sonnenberger if (ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY)
538f186073cSJoerg Sonnenberger fail |= 0x04;
539f186073cSJoerg Sonnenberger }
54032176cfdSRui Paulo rate = ieee80211_fix_rate(ni, &ni->ni_rates,
54132176cfdSRui Paulo IEEE80211_F_JOIN | IEEE80211_F_DONEGO | IEEE80211_F_DOFRATE);
542f186073cSJoerg Sonnenberger if (rate & IEEE80211_RATE_BASIC)
543f186073cSJoerg Sonnenberger fail |= 0x08;
54432176cfdSRui Paulo if (vap->iv_des_nssid != 0 &&
54532176cfdSRui Paulo !match_ssid(ni, vap->iv_des_nssid, vap->iv_des_ssid))
546f186073cSJoerg Sonnenberger fail |= 0x10;
54732176cfdSRui Paulo if ((vap->iv_flags & IEEE80211_F_DESBSSID) &&
54832176cfdSRui Paulo !IEEE80211_ADDR_EQ(vap->iv_des_bssid, ni->ni_bssid))
549f186073cSJoerg Sonnenberger fail |= 0x20;
55032176cfdSRui Paulo
551085ff963SMatthew Dillon kprintf(" %c %s", fail ? '-' : '+', ether_sprintf(ni->ni_macaddr));
552085ff963SMatthew Dillon kprintf(" %s%c", ether_sprintf(ni->ni_bssid), fail & 0x20 ? '!' : ' ');
55332176cfdSRui Paulo kprintf(" %3d%c",
55432176cfdSRui Paulo ieee80211_chan2ieee(ic, ni->ni_chan), fail & 0x01 ? '!' : ' ');
555a6ec04bcSSascha Wildner kprintf(" %2dM%c", (rate & IEEE80211_RATE_VAL) / 2,
556f186073cSJoerg Sonnenberger fail & 0x08 ? '!' : ' ');
557a6ec04bcSSascha Wildner kprintf(" %4s%c",
558f186073cSJoerg Sonnenberger (ni->ni_capinfo & IEEE80211_CAPINFO_ESS) ? "ess" :
559f186073cSJoerg Sonnenberger (ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) ? "ibss" :
560f186073cSJoerg Sonnenberger "????",
561f186073cSJoerg Sonnenberger fail & 0x02 ? '!' : ' ');
562a6ec04bcSSascha Wildner kprintf(" %3s%c ",
56332176cfdSRui Paulo (ni->ni_capinfo & IEEE80211_CAPINFO_PRIVACY) ? "wep" : "no",
564f186073cSJoerg Sonnenberger fail & 0x04 ? '!' : ' ');
565f186073cSJoerg Sonnenberger ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
566a6ec04bcSSascha Wildner kprintf("%s\n", fail & 0x10 ? "!" : "");
567f186073cSJoerg Sonnenberger }
56832176cfdSRui Paulo #endif /* IEEE80211_DEBUG */
569841ab66cSSepherosa Ziehau
5704f655ef5SMatthew Dillon
5714f655ef5SMatthew Dillon int
ieee80211_ibss_merge_check(struct ieee80211_node * ni)5724f655ef5SMatthew Dillon ieee80211_ibss_merge_check(struct ieee80211_node *ni)
5734f655ef5SMatthew Dillon {
5744f655ef5SMatthew Dillon struct ieee80211vap *vap = ni->ni_vap;
5754f655ef5SMatthew Dillon
5764f655ef5SMatthew Dillon if (ni == vap->iv_bss ||
5774f655ef5SMatthew Dillon IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid)) {
5784f655ef5SMatthew Dillon /* unchanged, nothing to do */
5794f655ef5SMatthew Dillon return 0;
5804f655ef5SMatthew Dillon }
5814f655ef5SMatthew Dillon
5824f655ef5SMatthew Dillon if (!check_bss(vap, ni)) {
5834f655ef5SMatthew Dillon /* capabilities mismatch */
5844f655ef5SMatthew Dillon IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC,
5854f655ef5SMatthew Dillon "%s: merge failed, capabilities mismatch\n", __func__);
5864f655ef5SMatthew Dillon #ifdef IEEE80211_DEBUG
5874f655ef5SMatthew Dillon if (ieee80211_msg_assoc(vap))
5884f655ef5SMatthew Dillon check_bss_debug(vap, ni);
5894f655ef5SMatthew Dillon #endif
5904f655ef5SMatthew Dillon vap->iv_stats.is_ibss_capmismatch++;
5914f655ef5SMatthew Dillon return 0;
5924f655ef5SMatthew Dillon }
5934f655ef5SMatthew Dillon
5944f655ef5SMatthew Dillon return 1;
5954f655ef5SMatthew Dillon }
5964f655ef5SMatthew Dillon
597841ab66cSSepherosa Ziehau /*
598841ab66cSSepherosa Ziehau * Handle 802.11 ad hoc network merge. The
599841ab66cSSepherosa Ziehau * convention, set by the Wireless Ethernet Compatibility Alliance
600841ab66cSSepherosa Ziehau * (WECA), is that an 802.11 station will change its BSSID to match
601841ab66cSSepherosa Ziehau * the "oldest" 802.11 ad hoc network, on the same channel, that
602841ab66cSSepherosa Ziehau * has the station's desired SSID. The "oldest" 802.11 network
603841ab66cSSepherosa Ziehau * sends beacons with the greatest TSF timestamp.
604841ab66cSSepherosa Ziehau *
605841ab66cSSepherosa Ziehau * The caller is assumed to validate TSF's before attempting a merge.
606841ab66cSSepherosa Ziehau *
607841ab66cSSepherosa Ziehau * Return !0 if the BSSID changed, 0 otherwise.
608841ab66cSSepherosa Ziehau */
609841ab66cSSepherosa Ziehau int
ieee80211_ibss_merge(struct ieee80211_node * ni)610841ab66cSSepherosa Ziehau ieee80211_ibss_merge(struct ieee80211_node *ni)
611841ab66cSSepherosa Ziehau {
61232176cfdSRui Paulo #ifdef IEEE80211_DEBUG
6134f655ef5SMatthew Dillon struct ieee80211vap *vap = ni->ni_vap;
614841ab66cSSepherosa Ziehau struct ieee80211com *ic = ni->ni_ic;
61533e5766fSSascha Wildner #endif
616841ab66cSSepherosa Ziehau
6174f655ef5SMatthew Dillon if (! ieee80211_ibss_merge_check(ni))
618841ab66cSSepherosa Ziehau return 0;
6194f655ef5SMatthew Dillon
62032176cfdSRui Paulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC,
6211e290df3SAntonio Huete Jimenez "%s: new bssid %s: %s preamble, %s slot time%s\n", __func__,
622085ff963SMatthew Dillon ether_sprintf(ni->ni_bssid),
623841ab66cSSepherosa Ziehau ic->ic_flags&IEEE80211_F_SHPREAMBLE ? "short" : "long",
624841ab66cSSepherosa Ziehau ic->ic_flags&IEEE80211_F_SHSLOT ? "short" : "long",
625841ab66cSSepherosa Ziehau ic->ic_flags&IEEE80211_F_USEPROT ? ", protection" : ""
626841ab66cSSepherosa Ziehau );
62732176cfdSRui Paulo return ieee80211_sta_join1(ieee80211_ref_node(ni));
62832176cfdSRui Paulo }
62932176cfdSRui Paulo
63032176cfdSRui Paulo /*
63132176cfdSRui Paulo * Calculate HT channel promotion flags for all vaps.
63232176cfdSRui Paulo * This assumes ni_chan have been setup for each vap.
63332176cfdSRui Paulo */
63432176cfdSRui Paulo static int
gethtadjustflags(struct ieee80211com * ic)63532176cfdSRui Paulo gethtadjustflags(struct ieee80211com *ic)
63632176cfdSRui Paulo {
63732176cfdSRui Paulo struct ieee80211vap *vap;
63832176cfdSRui Paulo int flags;
63932176cfdSRui Paulo
64032176cfdSRui Paulo flags = 0;
64132176cfdSRui Paulo /* XXX locking */
64232176cfdSRui Paulo TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
64332176cfdSRui Paulo if (vap->iv_state < IEEE80211_S_RUN)
64432176cfdSRui Paulo continue;
64532176cfdSRui Paulo switch (vap->iv_opmode) {
64632176cfdSRui Paulo case IEEE80211_M_WDS:
64732176cfdSRui Paulo case IEEE80211_M_STA:
64832176cfdSRui Paulo case IEEE80211_M_AHDEMO:
64932176cfdSRui Paulo case IEEE80211_M_HOSTAP:
65032176cfdSRui Paulo case IEEE80211_M_IBSS:
65132176cfdSRui Paulo case IEEE80211_M_MBSS:
65232176cfdSRui Paulo flags |= ieee80211_htchanflags(vap->iv_bss->ni_chan);
65332176cfdSRui Paulo break;
65432176cfdSRui Paulo default:
65532176cfdSRui Paulo break;
65632176cfdSRui Paulo }
65732176cfdSRui Paulo }
65832176cfdSRui Paulo return flags;
65932176cfdSRui Paulo }
66032176cfdSRui Paulo
66132176cfdSRui Paulo /*
66232176cfdSRui Paulo * Check if the current channel needs to change based on whether
66332176cfdSRui Paulo * any vap's are using HT20/HT40. This is used to sync the state
66432176cfdSRui Paulo * of ic_curchan after a channel width change on a running vap.
66532176cfdSRui Paulo */
66632176cfdSRui Paulo void
ieee80211_sync_curchan(struct ieee80211com * ic)66732176cfdSRui Paulo ieee80211_sync_curchan(struct ieee80211com *ic)
66832176cfdSRui Paulo {
66932176cfdSRui Paulo struct ieee80211_channel *c;
67032176cfdSRui Paulo
67132176cfdSRui Paulo c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, gethtadjustflags(ic));
67232176cfdSRui Paulo if (c != ic->ic_curchan) {
67332176cfdSRui Paulo ic->ic_curchan = c;
67432176cfdSRui Paulo ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan);
67532176cfdSRui Paulo ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
676085ff963SMatthew Dillon IEEE80211_UNLOCK(ic);
67732176cfdSRui Paulo ic->ic_set_channel(ic);
67832176cfdSRui Paulo ieee80211_radiotap_chan_change(ic);
679085ff963SMatthew Dillon IEEE80211_LOCK(ic);
68032176cfdSRui Paulo }
68132176cfdSRui Paulo }
68232176cfdSRui Paulo
68332176cfdSRui Paulo /*
68432176cfdSRui Paulo * Setup the current channel. The request channel may be
68532176cfdSRui Paulo * promoted if other vap's are operating with HT20/HT40.
68632176cfdSRui Paulo */
68732176cfdSRui Paulo void
ieee80211_setupcurchan(struct ieee80211com * ic,struct ieee80211_channel * c)68832176cfdSRui Paulo ieee80211_setupcurchan(struct ieee80211com *ic, struct ieee80211_channel *c)
68932176cfdSRui Paulo {
69032176cfdSRui Paulo if (ic->ic_htcaps & IEEE80211_HTC_HT) {
69132176cfdSRui Paulo int flags = gethtadjustflags(ic);
69232176cfdSRui Paulo /*
69332176cfdSRui Paulo * Check for channel promotion required to support the
69432176cfdSRui Paulo * set of running vap's. This assumes we are called
69532176cfdSRui Paulo * after ni_chan is setup for each vap.
69632176cfdSRui Paulo */
69732176cfdSRui Paulo /* NB: this assumes IEEE80211_FHT_USEHT40 > IEEE80211_FHT_HT */
69832176cfdSRui Paulo if (flags > ieee80211_htchanflags(c))
69932176cfdSRui Paulo c = ieee80211_ht_adjust_channel(ic, c, flags);
70032176cfdSRui Paulo }
70132176cfdSRui Paulo ic->ic_bsschan = ic->ic_curchan = c;
70232176cfdSRui Paulo ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan);
70332176cfdSRui Paulo ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
70432176cfdSRui Paulo }
70532176cfdSRui Paulo
70632176cfdSRui Paulo /*
70732176cfdSRui Paulo * Change the current channel. The channel change is guaranteed to have
70832176cfdSRui Paulo * happened before the next state change.
70932176cfdSRui Paulo */
71032176cfdSRui Paulo void
ieee80211_setcurchan(struct ieee80211com * ic,struct ieee80211_channel * c)71132176cfdSRui Paulo ieee80211_setcurchan(struct ieee80211com *ic, struct ieee80211_channel *c)
71232176cfdSRui Paulo {
71332176cfdSRui Paulo ieee80211_setupcurchan(ic, c);
71432176cfdSRui Paulo ieee80211_runtask(ic, &ic->ic_chan_task);
715841ab66cSSepherosa Ziehau }
716841ab66cSSepherosa Ziehau
717085ff963SMatthew Dillon void
ieee80211_update_chw(struct ieee80211com * ic)718085ff963SMatthew Dillon ieee80211_update_chw(struct ieee80211com *ic)
719085ff963SMatthew Dillon {
720085ff963SMatthew Dillon
721085ff963SMatthew Dillon ieee80211_setupcurchan(ic, ic->ic_curchan);
722085ff963SMatthew Dillon ieee80211_runtask(ic, &ic->ic_chw_task);
723085ff963SMatthew Dillon }
724085ff963SMatthew Dillon
725841ab66cSSepherosa Ziehau /*
726841ab66cSSepherosa Ziehau * Join the specified IBSS/BSS network. The node is assumed to
727841ab66cSSepherosa Ziehau * be passed in with a held reference.
728841ab66cSSepherosa Ziehau */
72932176cfdSRui Paulo static int
ieee80211_sta_join1(struct ieee80211_node * selbs)73032176cfdSRui Paulo ieee80211_sta_join1(struct ieee80211_node *selbs)
731841ab66cSSepherosa Ziehau {
73232176cfdSRui Paulo struct ieee80211vap *vap = selbs->ni_vap;
73332176cfdSRui Paulo struct ieee80211com *ic = selbs->ni_ic;
734841ab66cSSepherosa Ziehau struct ieee80211_node *obss;
73532176cfdSRui Paulo int canreassoc;
736841ab66cSSepherosa Ziehau
737841ab66cSSepherosa Ziehau /*
738841ab66cSSepherosa Ziehau * Committed to selbs, setup state.
739841ab66cSSepherosa Ziehau */
74032176cfdSRui Paulo obss = vap->iv_bss;
74132176cfdSRui Paulo /*
74232176cfdSRui Paulo * Check if old+new node have the same address in which
74332176cfdSRui Paulo * case we can reassociate when operating in sta mode.
74432176cfdSRui Paulo */
74532176cfdSRui Paulo canreassoc = (obss != NULL &&
74632176cfdSRui Paulo vap->iv_state == IEEE80211_S_RUN &&
74732176cfdSRui Paulo IEEE80211_ADDR_EQ(obss->ni_macaddr, selbs->ni_macaddr));
74832176cfdSRui Paulo vap->iv_bss = selbs; /* NB: caller assumed to bump refcnt */
749841ab66cSSepherosa Ziehau if (obss != NULL) {
7504f898719SImre Vadász struct ieee80211_node_table *nt = obss->ni_table;
7514f898719SImre Vadász
752841ab66cSSepherosa Ziehau copy_bss(selbs, obss);
75332176cfdSRui Paulo ieee80211_node_decref(obss); /* iv_bss reference */
7544f898719SImre Vadász
7554f898719SImre Vadász IEEE80211_NODE_LOCK(nt);
7564f898719SImre Vadász node_reclaim(nt, obss); /* station table reference */
7574f898719SImre Vadász IEEE80211_NODE_UNLOCK(nt);
7584f898719SImre Vadász
75932176cfdSRui Paulo obss = NULL; /* NB: guard against later use */
760841ab66cSSepherosa Ziehau }
76132176cfdSRui Paulo
76232176cfdSRui Paulo /*
76332176cfdSRui Paulo * Delete unusable rates; we've already checked
76432176cfdSRui Paulo * that the negotiated rate set is acceptable.
76532176cfdSRui Paulo */
76632176cfdSRui Paulo ieee80211_fix_rate(vap->iv_bss, &vap->iv_bss->ni_rates,
76732176cfdSRui Paulo IEEE80211_F_DODEL | IEEE80211_F_JOIN);
76832176cfdSRui Paulo
76932176cfdSRui Paulo ieee80211_setcurchan(ic, selbs->ni_chan);
770841ab66cSSepherosa Ziehau /*
771841ab66cSSepherosa Ziehau * Set the erp state (mostly the slot time) to deal with
772841ab66cSSepherosa Ziehau * the auto-select case; this should be redundant if the
773841ab66cSSepherosa Ziehau * mode is locked.
774841ab66cSSepherosa Ziehau */
775841ab66cSSepherosa Ziehau ieee80211_reset_erp(ic);
77632176cfdSRui Paulo ieee80211_wme_initparams(vap);
777841ab66cSSepherosa Ziehau
77832176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_STA) {
77932176cfdSRui Paulo if (canreassoc) {
78032176cfdSRui Paulo /* Reassociate */
78132176cfdSRui Paulo ieee80211_new_state(vap, IEEE80211_S_ASSOC, 1);
78232176cfdSRui Paulo } else {
783208a1285SSepherosa Ziehau /*
78432176cfdSRui Paulo * Act as if we received a DEAUTH frame in case we
78532176cfdSRui Paulo * are invoked from the RUN state. This will cause
78632176cfdSRui Paulo * us to try to re-authenticate if we are operating
78732176cfdSRui Paulo * as a station.
788208a1285SSepherosa Ziehau */
78932176cfdSRui Paulo ieee80211_new_state(vap, IEEE80211_S_AUTH,
79032176cfdSRui Paulo IEEE80211_FC0_SUBTYPE_DEAUTH);
791208a1285SSepherosa Ziehau }
79232176cfdSRui Paulo } else
79332176cfdSRui Paulo ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
794841ab66cSSepherosa Ziehau return 1;
795841ab66cSSepherosa Ziehau }
796841ab66cSSepherosa Ziehau
79732176cfdSRui Paulo int
ieee80211_sta_join(struct ieee80211vap * vap,struct ieee80211_channel * chan,const struct ieee80211_scan_entry * se)79832176cfdSRui Paulo ieee80211_sta_join(struct ieee80211vap *vap, struct ieee80211_channel *chan,
79932176cfdSRui Paulo const struct ieee80211_scan_entry *se)
80032176cfdSRui Paulo {
80132176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
80232176cfdSRui Paulo struct ieee80211_node *ni;
80332176cfdSRui Paulo
80432176cfdSRui Paulo ni = ieee80211_alloc_node(&ic->ic_sta, vap, se->se_macaddr);
80532176cfdSRui Paulo if (ni == NULL) {
80632176cfdSRui Paulo /* XXX msg */
80732176cfdSRui Paulo return 0;
80832176cfdSRui Paulo }
809085ff963SMatthew Dillon
81032176cfdSRui Paulo /*
81132176cfdSRui Paulo * Expand scan state into node's format.
81232176cfdSRui Paulo * XXX may not need all this stuff
81332176cfdSRui Paulo */
81432176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, se->se_bssid);
81532176cfdSRui Paulo ni->ni_esslen = se->se_ssid[1];
81632176cfdSRui Paulo memcpy(ni->ni_essid, se->se_ssid+2, ni->ni_esslen);
81732176cfdSRui Paulo ni->ni_tstamp.tsf = se->se_tstamp.tsf;
81832176cfdSRui Paulo ni->ni_intval = se->se_intval;
81932176cfdSRui Paulo ni->ni_capinfo = se->se_capinfo;
82032176cfdSRui Paulo ni->ni_chan = chan;
82132176cfdSRui Paulo ni->ni_timoff = se->se_timoff;
82232176cfdSRui Paulo ni->ni_fhdwell = se->se_fhdwell;
82332176cfdSRui Paulo ni->ni_fhindex = se->se_fhindex;
82432176cfdSRui Paulo ni->ni_erp = se->se_erp;
82532176cfdSRui Paulo IEEE80211_RSSI_LPF(ni->ni_avgrssi, se->se_rssi);
82632176cfdSRui Paulo ni->ni_noise = se->se_noise;
82732176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_STA) {
82832176cfdSRui Paulo /* NB: only infrastructure mode requires an associd */
82932176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_ASSOCID;
83032176cfdSRui Paulo }
83132176cfdSRui Paulo
83232176cfdSRui Paulo if (ieee80211_ies_init(&ni->ni_ies, se->se_ies.data, se->se_ies.len)) {
83332176cfdSRui Paulo ieee80211_ies_expand(&ni->ni_ies);
83432176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
83532176cfdSRui Paulo if (ni->ni_ies.ath_ie != NULL)
83632176cfdSRui Paulo ieee80211_parse_ath(ni, ni->ni_ies.ath_ie);
83732176cfdSRui Paulo #endif
83832176cfdSRui Paulo if (ni->ni_ies.htcap_ie != NULL)
83932176cfdSRui Paulo ieee80211_parse_htcap(ni, ni->ni_ies.htcap_ie);
84032176cfdSRui Paulo if (ni->ni_ies.htinfo_ie != NULL)
84132176cfdSRui Paulo ieee80211_parse_htinfo(ni, ni->ni_ies.htinfo_ie);
84232176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
84332176cfdSRui Paulo if (ni->ni_ies.meshid_ie != NULL)
84432176cfdSRui Paulo ieee80211_parse_meshid(ni, ni->ni_ies.meshid_ie);
84532176cfdSRui Paulo #endif
84632176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_TDMA
84732176cfdSRui Paulo if (ni->ni_ies.tdma_ie != NULL)
84832176cfdSRui Paulo ieee80211_parse_tdma(ni, ni->ni_ies.tdma_ie);
84932176cfdSRui Paulo #endif
85032176cfdSRui Paulo }
85132176cfdSRui Paulo
85232176cfdSRui Paulo vap->iv_dtim_period = se->se_dtimperiod;
85332176cfdSRui Paulo vap->iv_dtim_count = 0;
85432176cfdSRui Paulo
85532176cfdSRui Paulo /* NB: must be after ni_chan is setup */
85632176cfdSRui Paulo ieee80211_setup_rates(ni, se->se_rates, se->se_xrates,
85732176cfdSRui Paulo IEEE80211_F_DOSORT);
85832176cfdSRui Paulo if (ieee80211_iserp_rateset(&ni->ni_rates))
85932176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_ERP;
860085ff963SMatthew Dillon
861085ff963SMatthew Dillon /*
862085ff963SMatthew Dillon * Setup HT state for this node if it's available, otherwise
863085ff963SMatthew Dillon * non-STA modes won't pick this state up.
864085ff963SMatthew Dillon *
865085ff963SMatthew Dillon * For IBSS and related modes that don't go through an
866085ff963SMatthew Dillon * association request/response, the only appropriate place
867085ff963SMatthew Dillon * to setup the HT state is here.
868085ff963SMatthew Dillon */
869085ff963SMatthew Dillon if (ni->ni_ies.htinfo_ie != NULL &&
870085ff963SMatthew Dillon ni->ni_ies.htcap_ie != NULL &&
871085ff963SMatthew Dillon vap->iv_flags_ht & IEEE80211_FHT_HT) {
872085ff963SMatthew Dillon ieee80211_ht_node_init(ni);
873085ff963SMatthew Dillon ieee80211_ht_updateparams(ni,
874085ff963SMatthew Dillon ni->ni_ies.htcap_ie,
875085ff963SMatthew Dillon ni->ni_ies.htinfo_ie);
876085ff963SMatthew Dillon ieee80211_setup_htrates(ni, ni->ni_ies.htcap_ie,
877085ff963SMatthew Dillon IEEE80211_F_JOIN | IEEE80211_F_DOBRS);
878085ff963SMatthew Dillon ieee80211_setup_basic_htrates(ni, ni->ni_ies.htinfo_ie);
879085ff963SMatthew Dillon }
880085ff963SMatthew Dillon /* XXX else check for ath FF? */
881085ff963SMatthew Dillon /* XXX QoS? Difficult given that WME config is specific to a master */
882085ff963SMatthew Dillon
88332176cfdSRui Paulo ieee80211_node_setuptxparms(ni);
8844fbce6bdSSascha Wildner ieee80211_ratectl_node_init(ni);
88532176cfdSRui Paulo
88632176cfdSRui Paulo return ieee80211_sta_join1(ieee80211_ref_node(ni));
88732176cfdSRui Paulo }
88832176cfdSRui Paulo
889841ab66cSSepherosa Ziehau /*
890841ab66cSSepherosa Ziehau * Leave the specified IBSS/BSS network. The node is assumed to
891841ab66cSSepherosa Ziehau * be passed in with a held reference.
892841ab66cSSepherosa Ziehau */
893841ab66cSSepherosa Ziehau void
ieee80211_sta_leave(struct ieee80211_node * ni)89432176cfdSRui Paulo ieee80211_sta_leave(struct ieee80211_node *ni)
895841ab66cSSepherosa Ziehau {
89632176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
89732176cfdSRui Paulo
898841ab66cSSepherosa Ziehau ic->ic_node_cleanup(ni);
89932176cfdSRui Paulo ieee80211_notify_node_leave(ni);
90032176cfdSRui Paulo }
90132176cfdSRui Paulo
90232176cfdSRui Paulo /*
90332176cfdSRui Paulo * Send a deauthenticate frame and drop the station.
90432176cfdSRui Paulo */
90532176cfdSRui Paulo void
ieee80211_node_deauth(struct ieee80211_node * ni,int reason)90632176cfdSRui Paulo ieee80211_node_deauth(struct ieee80211_node *ni, int reason)
90732176cfdSRui Paulo {
9084f898719SImre Vadász /* NB: bump the refcnt to be sure temporary nodes are not reclaimed */
90932176cfdSRui Paulo ieee80211_ref_node(ni);
91032176cfdSRui Paulo if (ni->ni_associd != 0)
91132176cfdSRui Paulo IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
91232176cfdSRui Paulo ieee80211_node_leave(ni);
91332176cfdSRui Paulo ieee80211_free_node(ni);
914f186073cSJoerg Sonnenberger }
915f186073cSJoerg Sonnenberger
916f186073cSJoerg Sonnenberger static struct ieee80211_node *
node_alloc(struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN])91732176cfdSRui Paulo node_alloc(struct ieee80211vap *vap, const uint8_t macaddr[IEEE80211_ADDR_LEN])
918f186073cSJoerg Sonnenberger {
919f186073cSJoerg Sonnenberger struct ieee80211_node *ni;
920841ab66cSSepherosa Ziehau
9214f655ef5SMatthew Dillon #if defined(__DragonFly__)
92232176cfdSRui Paulo ni = (struct ieee80211_node *) kmalloc(sizeof(struct ieee80211_node),
923fcaa651dSRui Paulo M_80211_NODE, M_INTWAIT | M_ZERO);
9244f655ef5SMatthew Dillon #else
9254f655ef5SMatthew Dillon ni = (struct ieee80211_node *) IEEE80211_MALLOC(sizeof(struct ieee80211_node),
9264f655ef5SMatthew Dillon M_80211_NODE, IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
9274f655ef5SMatthew Dillon #endif
928f186073cSJoerg Sonnenberger return ni;
929f186073cSJoerg Sonnenberger }
930f186073cSJoerg Sonnenberger
931841ab66cSSepherosa Ziehau /*
93232176cfdSRui Paulo * Initialize an ie blob with the specified data. If previous
93332176cfdSRui Paulo * data exists re-use the data block. As a side effect we clear
93432176cfdSRui Paulo * all references to specific ie's; the caller is required to
93532176cfdSRui Paulo * recalculate them.
93632176cfdSRui Paulo */
93732176cfdSRui Paulo int
ieee80211_ies_init(struct ieee80211_ies * ies,const uint8_t * data,int len)93832176cfdSRui Paulo ieee80211_ies_init(struct ieee80211_ies *ies, const uint8_t *data, int len)
93932176cfdSRui Paulo {
94032176cfdSRui Paulo /* NB: assumes data+len are the last fields */
94132176cfdSRui Paulo memset(ies, 0, offsetof(struct ieee80211_ies, data));
94232176cfdSRui Paulo if (ies->data != NULL && ies->len != len) {
94332176cfdSRui Paulo /* data size changed */
9444f655ef5SMatthew Dillon IEEE80211_FREE(ies->data, M_80211_NODE_IE);
94532176cfdSRui Paulo ies->data = NULL;
94632176cfdSRui Paulo }
94732176cfdSRui Paulo if (ies->data == NULL) {
9484f655ef5SMatthew Dillon #if defined(__DragonFly__)
9494f655ef5SMatthew Dillon ies->data = (uint8_t *) kmalloc(len,
9504f655ef5SMatthew Dillon M_80211_NODE_IE, M_INTWAIT | M_ZERO);
9514f655ef5SMatthew Dillon #else
9524f655ef5SMatthew Dillon ies->data = (uint8_t *) IEEE80211_MALLOC(len, M_80211_NODE_IE,
9534f655ef5SMatthew Dillon IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
9544f655ef5SMatthew Dillon
9554f655ef5SMatthew Dillon #endif
95632176cfdSRui Paulo if (ies->data == NULL) {
95732176cfdSRui Paulo ies->len = 0;
95832176cfdSRui Paulo /* NB: pointers have already been zero'd above */
95932176cfdSRui Paulo return 0;
96032176cfdSRui Paulo }
96132176cfdSRui Paulo }
96232176cfdSRui Paulo memcpy(ies->data, data, len);
96332176cfdSRui Paulo ies->len = len;
96432176cfdSRui Paulo return 1;
96532176cfdSRui Paulo }
96632176cfdSRui Paulo
96732176cfdSRui Paulo /*
96832176cfdSRui Paulo * Reclaim storage for an ie blob.
96932176cfdSRui Paulo */
97032176cfdSRui Paulo void
ieee80211_ies_cleanup(struct ieee80211_ies * ies)97132176cfdSRui Paulo ieee80211_ies_cleanup(struct ieee80211_ies *ies)
97232176cfdSRui Paulo {
97332176cfdSRui Paulo if (ies->data != NULL)
9744f655ef5SMatthew Dillon IEEE80211_FREE(ies->data, M_80211_NODE_IE);
97532176cfdSRui Paulo }
97632176cfdSRui Paulo
97732176cfdSRui Paulo /*
97832176cfdSRui Paulo * Expand an ie blob data contents and to fillin individual
97932176cfdSRui Paulo * ie pointers. The data blob is assumed to be well-formed;
98032176cfdSRui Paulo * we don't do any validity checking of ie lengths.
98132176cfdSRui Paulo */
98232176cfdSRui Paulo void
ieee80211_ies_expand(struct ieee80211_ies * ies)98332176cfdSRui Paulo ieee80211_ies_expand(struct ieee80211_ies *ies)
98432176cfdSRui Paulo {
98532176cfdSRui Paulo uint8_t *ie;
98632176cfdSRui Paulo int ielen;
98732176cfdSRui Paulo
98832176cfdSRui Paulo ie = ies->data;
98932176cfdSRui Paulo ielen = ies->len;
99032176cfdSRui Paulo while (ielen > 0) {
99132176cfdSRui Paulo switch (ie[0]) {
99232176cfdSRui Paulo case IEEE80211_ELEMID_VENDOR:
99332176cfdSRui Paulo if (iswpaoui(ie))
99432176cfdSRui Paulo ies->wpa_ie = ie;
99532176cfdSRui Paulo else if (iswmeoui(ie))
99632176cfdSRui Paulo ies->wme_ie = ie;
99732176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
99832176cfdSRui Paulo else if (isatherosoui(ie))
99932176cfdSRui Paulo ies->ath_ie = ie;
100032176cfdSRui Paulo #endif
100132176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_TDMA
100232176cfdSRui Paulo else if (istdmaoui(ie))
100332176cfdSRui Paulo ies->tdma_ie = ie;
100432176cfdSRui Paulo #endif
100532176cfdSRui Paulo break;
100632176cfdSRui Paulo case IEEE80211_ELEMID_RSN:
100732176cfdSRui Paulo ies->rsn_ie = ie;
100832176cfdSRui Paulo break;
100932176cfdSRui Paulo case IEEE80211_ELEMID_HTCAP:
101032176cfdSRui Paulo ies->htcap_ie = ie;
101132176cfdSRui Paulo break;
1012085ff963SMatthew Dillon case IEEE80211_ELEMID_HTINFO:
1013085ff963SMatthew Dillon ies->htinfo_ie = ie;
1014085ff963SMatthew Dillon break;
101532176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
101632176cfdSRui Paulo case IEEE80211_ELEMID_MESHID:
101732176cfdSRui Paulo ies->meshid_ie = ie;
101832176cfdSRui Paulo break;
101932176cfdSRui Paulo #endif
102032176cfdSRui Paulo }
102132176cfdSRui Paulo ielen -= 2 + ie[1];
102232176cfdSRui Paulo ie += 2 + ie[1];
102332176cfdSRui Paulo }
102432176cfdSRui Paulo }
102532176cfdSRui Paulo
102632176cfdSRui Paulo /*
1027841ab66cSSepherosa Ziehau * Reclaim any resources in a node and reset any critical
1028841ab66cSSepherosa Ziehau * state. Typically nodes are free'd immediately after,
1029841ab66cSSepherosa Ziehau * but in some cases the storage may be reused so we need
1030841ab66cSSepherosa Ziehau * to insure consistent state (should probably fix that).
1031841ab66cSSepherosa Ziehau */
1032f186073cSJoerg Sonnenberger static void
node_cleanup(struct ieee80211_node * ni)1033841ab66cSSepherosa Ziehau node_cleanup(struct ieee80211_node *ni)
1034f186073cSJoerg Sonnenberger {
103532176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
1036841ab66cSSepherosa Ziehau struct ieee80211com *ic = ni->ni_ic;
103732176cfdSRui Paulo int i;
1038841ab66cSSepherosa Ziehau
1039841ab66cSSepherosa Ziehau /* NB: preserve ni_table */
1040841ab66cSSepherosa Ziehau if (ni->ni_flags & IEEE80211_NODE_PWR_MGT) {
104132176cfdSRui Paulo if (vap->iv_opmode != IEEE80211_M_STA)
104232176cfdSRui Paulo vap->iv_ps_sta--;
1043841ab66cSSepherosa Ziehau ni->ni_flags &= ~IEEE80211_NODE_PWR_MGT;
104432176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni,
104532176cfdSRui Paulo "power save mode off, %u sta's in ps mode", vap->iv_ps_sta);
1046841ab66cSSepherosa Ziehau }
1047841ab66cSSepherosa Ziehau /*
104832176cfdSRui Paulo * Cleanup any HT-related state.
104932176cfdSRui Paulo */
105032176cfdSRui Paulo if (ni->ni_flags & IEEE80211_NODE_HT)
105132176cfdSRui Paulo ieee80211_ht_node_cleanup(ni);
105232176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
10534f655ef5SMatthew Dillon /* Always do FF node cleanup; for A-MSDU */
105432176cfdSRui Paulo ieee80211_ff_node_cleanup(ni);
105532176cfdSRui Paulo #endif
105632176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
105732176cfdSRui Paulo /*
105832176cfdSRui Paulo * Cleanup any mesh-related state.
105932176cfdSRui Paulo */
106032176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_MBSS)
106132176cfdSRui Paulo ieee80211_mesh_node_cleanup(ni);
106232176cfdSRui Paulo #endif
106332176cfdSRui Paulo /*
106432176cfdSRui Paulo * Clear any staging queue entries.
106532176cfdSRui Paulo */
106632176cfdSRui Paulo ieee80211_ageq_drain_node(&ic->ic_stageq, ni);
106732176cfdSRui Paulo
106832176cfdSRui Paulo /*
1069841ab66cSSepherosa Ziehau * Clear AREF flag that marks the authorization refcnt bump
1070841ab66cSSepherosa Ziehau * has happened. This is probably not needed as the node
1071841ab66cSSepherosa Ziehau * should always be removed from the table so not found but
1072841ab66cSSepherosa Ziehau * do it just in case.
107332176cfdSRui Paulo * Likewise clear the ASSOCID flag as these flags are intended
107432176cfdSRui Paulo * to be managed in tandem.
1075841ab66cSSepherosa Ziehau */
107632176cfdSRui Paulo ni->ni_flags &= ~(IEEE80211_NODE_AREF | IEEE80211_NODE_ASSOCID);
1077841ab66cSSepherosa Ziehau
1078841ab66cSSepherosa Ziehau /*
1079841ab66cSSepherosa Ziehau * Drain power save queue and, if needed, clear TIM.
1080841ab66cSSepherosa Ziehau */
108132176cfdSRui Paulo if (ieee80211_node_psq_drain(ni) != 0 && vap->iv_set_tim != NULL)
108232176cfdSRui Paulo vap->iv_set_tim(ni, 0);
1083841ab66cSSepherosa Ziehau
1084841ab66cSSepherosa Ziehau ni->ni_associd = 0;
1085841ab66cSSepherosa Ziehau if (ni->ni_challenge != NULL) {
10864f655ef5SMatthew Dillon IEEE80211_FREE(ni->ni_challenge, M_80211_NODE);
1087841ab66cSSepherosa Ziehau ni->ni_challenge = NULL;
1088841ab66cSSepherosa Ziehau }
1089841ab66cSSepherosa Ziehau /*
1090841ab66cSSepherosa Ziehau * Preserve SSID, WPA, and WME ie's so the bss node is
1091841ab66cSSepherosa Ziehau * reusable during a re-auth/re-assoc state transition.
1092841ab66cSSepherosa Ziehau * If we remove these data they will not be recreated
1093841ab66cSSepherosa Ziehau * because they come from a probe-response or beacon frame
1094841ab66cSSepherosa Ziehau * which cannot be expected prior to the association-response.
1095841ab66cSSepherosa Ziehau * This should not be an issue when operating in other modes
1096841ab66cSSepherosa Ziehau * as stations leaving always go through a full state transition
1097841ab66cSSepherosa Ziehau * which will rebuild this state.
1098841ab66cSSepherosa Ziehau *
1099841ab66cSSepherosa Ziehau * XXX does this leave us open to inheriting old state?
1100841ab66cSSepherosa Ziehau */
1101085ff963SMatthew Dillon for (i = 0; i < nitems(ni->ni_rxfrag); i++)
1102841ab66cSSepherosa Ziehau if (ni->ni_rxfrag[i] != NULL) {
1103841ab66cSSepherosa Ziehau m_freem(ni->ni_rxfrag[i]);
1104841ab66cSSepherosa Ziehau ni->ni_rxfrag[i] = NULL;
1105841ab66cSSepherosa Ziehau }
1106841ab66cSSepherosa Ziehau /*
1107841ab66cSSepherosa Ziehau * Must be careful here to remove any key map entry w/o a LOR.
1108841ab66cSSepherosa Ziehau */
1109841ab66cSSepherosa Ziehau ieee80211_node_delucastkey(ni);
1110f186073cSJoerg Sonnenberger }
1111f186073cSJoerg Sonnenberger
1112f186073cSJoerg Sonnenberger static void
node_free(struct ieee80211_node * ni)1113841ab66cSSepherosa Ziehau node_free(struct ieee80211_node *ni)
1114f186073cSJoerg Sonnenberger {
1115841ab66cSSepherosa Ziehau struct ieee80211com *ic = ni->ni_ic;
1116841ab66cSSepherosa Ziehau
11174028af95SRui Paulo ieee80211_ratectl_node_deinit(ni);
1118841ab66cSSepherosa Ziehau ic->ic_node_cleanup(ni);
111932176cfdSRui Paulo ieee80211_ies_cleanup(&ni->ni_ies);
112032176cfdSRui Paulo ieee80211_psq_cleanup(&ni->ni_psq);
11214f655ef5SMatthew Dillon IEEE80211_FREE(ni, M_80211_NODE);
1122f186073cSJoerg Sonnenberger }
1123f186073cSJoerg Sonnenberger
112432176cfdSRui Paulo static void
node_age(struct ieee80211_node * ni)112532176cfdSRui Paulo node_age(struct ieee80211_node *ni)
112632176cfdSRui Paulo {
112732176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
112832176cfdSRui Paulo
1129085ff963SMatthew Dillon IEEE80211_NODE_LOCK_ASSERT(&vap->iv_ic->ic_sta);
1130085ff963SMatthew Dillon
113132176cfdSRui Paulo /*
113232176cfdSRui Paulo * Age frames on the power save queue.
113332176cfdSRui Paulo */
113432176cfdSRui Paulo if (ieee80211_node_psq_age(ni) != 0 &&
113532176cfdSRui Paulo ni->ni_psq.psq_len == 0 && vap->iv_set_tim != NULL)
113632176cfdSRui Paulo vap->iv_set_tim(ni, 0);
113732176cfdSRui Paulo /*
113832176cfdSRui Paulo * Age out HT resources (e.g. frames on the
113932176cfdSRui Paulo * A-MPDU reorder queues).
114032176cfdSRui Paulo */
114132176cfdSRui Paulo if (ni->ni_associd != 0 && (ni->ni_flags & IEEE80211_NODE_HT))
114232176cfdSRui Paulo ieee80211_ht_node_age(ni);
114332176cfdSRui Paulo }
114432176cfdSRui Paulo
114532176cfdSRui Paulo static int8_t
node_getrssi(const struct ieee80211_node * ni)1146841ab66cSSepherosa Ziehau node_getrssi(const struct ieee80211_node *ni)
1147f186073cSJoerg Sonnenberger {
114832176cfdSRui Paulo uint32_t avgrssi = ni->ni_avgrssi;
114932176cfdSRui Paulo int32_t rssi;
115032176cfdSRui Paulo
115132176cfdSRui Paulo if (avgrssi == IEEE80211_RSSI_DUMMY_MARKER)
115232176cfdSRui Paulo return 0;
115332176cfdSRui Paulo rssi = IEEE80211_RSSI_GET(avgrssi);
115432176cfdSRui Paulo return rssi < 0 ? 0 : rssi > 127 ? 127 : rssi;
1155f186073cSJoerg Sonnenberger }
1156f186073cSJoerg Sonnenberger
1157f186073cSJoerg Sonnenberger static void
node_getsignal(const struct ieee80211_node * ni,int8_t * rssi,int8_t * noise)115832176cfdSRui Paulo node_getsignal(const struct ieee80211_node *ni, int8_t *rssi, int8_t *noise)
115932176cfdSRui Paulo {
116032176cfdSRui Paulo *rssi = node_getrssi(ni);
116132176cfdSRui Paulo *noise = ni->ni_noise;
116232176cfdSRui Paulo }
116332176cfdSRui Paulo
116432176cfdSRui Paulo static void
node_getmimoinfo(const struct ieee80211_node * ni,struct ieee80211_mimo_info * info)116532176cfdSRui Paulo node_getmimoinfo(const struct ieee80211_node *ni,
116632176cfdSRui Paulo struct ieee80211_mimo_info *info)
116732176cfdSRui Paulo {
1168085ff963SMatthew Dillon int i;
1169085ff963SMatthew Dillon uint32_t avgrssi;
1170085ff963SMatthew Dillon int32_t rssi;
1171085ff963SMatthew Dillon
1172085ff963SMatthew Dillon bzero(info, sizeof(*info));
1173085ff963SMatthew Dillon
1174085ff963SMatthew Dillon for (i = 0; i < ni->ni_mimo_chains; i++) {
1175085ff963SMatthew Dillon avgrssi = ni->ni_mimo_rssi_ctl[i];
1176085ff963SMatthew Dillon if (avgrssi == IEEE80211_RSSI_DUMMY_MARKER) {
1177085ff963SMatthew Dillon info->rssi[i] = 0;
1178085ff963SMatthew Dillon } else {
1179085ff963SMatthew Dillon rssi = IEEE80211_RSSI_GET(avgrssi);
1180085ff963SMatthew Dillon info->rssi[i] = rssi < 0 ? 0 : rssi > 127 ? 127 : rssi;
1181085ff963SMatthew Dillon }
1182085ff963SMatthew Dillon info->noise[i] = ni->ni_mimo_noise_ctl[i];
1183085ff963SMatthew Dillon }
1184085ff963SMatthew Dillon
1185085ff963SMatthew Dillon /* XXX ext radios? */
1186085ff963SMatthew Dillon
1187085ff963SMatthew Dillon /* XXX EVM? */
118832176cfdSRui Paulo }
118932176cfdSRui Paulo
119032176cfdSRui Paulo struct ieee80211_node *
ieee80211_alloc_node(struct ieee80211_node_table * nt,struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN])119132176cfdSRui Paulo ieee80211_alloc_node(struct ieee80211_node_table *nt,
119232176cfdSRui Paulo struct ieee80211vap *vap, const uint8_t macaddr[IEEE80211_ADDR_LEN])
1193f186073cSJoerg Sonnenberger {
1194841ab66cSSepherosa Ziehau struct ieee80211com *ic = nt->nt_ic;
119532176cfdSRui Paulo struct ieee80211_node *ni;
1196f186073cSJoerg Sonnenberger int hash;
1197f186073cSJoerg Sonnenberger
119832176cfdSRui Paulo ni = ic->ic_node_alloc(vap, macaddr);
119932176cfdSRui Paulo if (ni == NULL) {
120032176cfdSRui Paulo vap->iv_stats.is_rx_nodealloc++;
120132176cfdSRui Paulo return NULL;
120232176cfdSRui Paulo }
1203841ab66cSSepherosa Ziehau
120432176cfdSRui Paulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
12051e290df3SAntonio Huete Jimenez "%s %p<%s> in %s table\n", __func__, ni,
1206085ff963SMatthew Dillon ether_sprintf(macaddr), nt->nt_name);
1207841ab66cSSepherosa Ziehau
1208f186073cSJoerg Sonnenberger IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr);
120932176cfdSRui Paulo hash = IEEE80211_NODE_HASH(ic, macaddr);
1210841ab66cSSepherosa Ziehau ieee80211_node_initref(ni); /* mark referenced */
1211841ab66cSSepherosa Ziehau ni->ni_chan = IEEE80211_CHAN_ANYC;
1212841ab66cSSepherosa Ziehau ni->ni_authmode = IEEE80211_AUTH_OPEN;
1213841ab66cSSepherosa Ziehau ni->ni_txpower = ic->ic_txpowlimit; /* max power */
121432176cfdSRui Paulo ni->ni_txparms = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
121532176cfdSRui Paulo ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey, IEEE80211_KEYIX_NONE);
121632176cfdSRui Paulo ni->ni_avgrssi = IEEE80211_RSSI_DUMMY_MARKER;
1217841ab66cSSepherosa Ziehau ni->ni_inact_reload = nt->nt_inact_init;
1218841ab66cSSepherosa Ziehau ni->ni_inact = ni->ni_inact_reload;
121932176cfdSRui Paulo ni->ni_ath_defkeyix = 0x7fff;
122032176cfdSRui Paulo ieee80211_psq_init(&ni->ni_psq, "unknown");
122132176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
122232176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_MBSS)
122332176cfdSRui Paulo ieee80211_mesh_node_init(vap, ni);
122432176cfdSRui Paulo #endif
1225085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
1226841ab66cSSepherosa Ziehau TAILQ_INSERT_TAIL(&nt->nt_node, ni, ni_list);
1227841ab66cSSepherosa Ziehau LIST_INSERT_HEAD(&nt->nt_hash[hash], ni, ni_hash);
1228841ab66cSSepherosa Ziehau ni->ni_table = nt;
122932176cfdSRui Paulo ni->ni_vap = vap;
1230841ab66cSSepherosa Ziehau ni->ni_ic = ic;
1231085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1232b437bb69SSascha Wildner
123332176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
123432176cfdSRui Paulo "%s: inact_reload %u", __func__, ni->ni_inact_reload);
1235f186073cSJoerg Sonnenberger
1236085ff963SMatthew Dillon ieee80211_ratectl_node_init(ni);
1237085ff963SMatthew Dillon
1238f186073cSJoerg Sonnenberger return ni;
1239f186073cSJoerg Sonnenberger }
1240f186073cSJoerg Sonnenberger
1241841ab66cSSepherosa Ziehau /*
1242841ab66cSSepherosa Ziehau * Craft a temporary node suitable for sending a management frame
1243841ab66cSSepherosa Ziehau * to the specified station. We craft only as much state as we
1244841ab66cSSepherosa Ziehau * need to do the work since the node will be immediately reclaimed
1245841ab66cSSepherosa Ziehau * once the send completes.
1246841ab66cSSepherosa Ziehau */
1247f186073cSJoerg Sonnenberger struct ieee80211_node *
ieee80211_tmp_node(struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN])124832176cfdSRui Paulo ieee80211_tmp_node(struct ieee80211vap *vap,
124932176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
1250f186073cSJoerg Sonnenberger {
125132176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
1252841ab66cSSepherosa Ziehau struct ieee80211_node *ni;
1253841ab66cSSepherosa Ziehau
125432176cfdSRui Paulo ni = ic->ic_node_alloc(vap, macaddr);
1255f186073cSJoerg Sonnenberger if (ni != NULL) {
125632176cfdSRui Paulo struct ieee80211_node *bss = vap->iv_bss;
1257841ab66cSSepherosa Ziehau
125832176cfdSRui Paulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
1259085ff963SMatthew Dillon "%s %p<%s>\n", __func__, ni, ether_sprintf(macaddr));
1260841ab66cSSepherosa Ziehau
1261841ab66cSSepherosa Ziehau ni->ni_table = NULL; /* NB: pedantic */
126232176cfdSRui Paulo ni->ni_ic = ic; /* NB: needed to set channel */
126332176cfdSRui Paulo ni->ni_vap = vap;
126432176cfdSRui Paulo
126532176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr);
126632176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, bss->ni_bssid);
126732176cfdSRui Paulo ieee80211_node_initref(ni); /* mark referenced */
126832176cfdSRui Paulo /* NB: required by ieee80211_fix_rate */
126932176cfdSRui Paulo ieee80211_node_set_chan(ni, bss->ni_chan);
127032176cfdSRui Paulo ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey,
127132176cfdSRui Paulo IEEE80211_KEYIX_NONE);
127232176cfdSRui Paulo ni->ni_txpower = bss->ni_txpower;
127332176cfdSRui Paulo /* XXX optimize away */
127432176cfdSRui Paulo ieee80211_psq_init(&ni->ni_psq, "unknown");
1275b437bb69SSascha Wildner
1276b437bb69SSascha Wildner ieee80211_ratectl_node_init(ni);
1277841ab66cSSepherosa Ziehau } else {
1278841ab66cSSepherosa Ziehau /* XXX msg */
127932176cfdSRui Paulo vap->iv_stats.is_rx_nodealloc++;
1280841ab66cSSepherosa Ziehau }
1281841ab66cSSepherosa Ziehau return ni;
1282841ab66cSSepherosa Ziehau }
1283841ab66cSSepherosa Ziehau
1284841ab66cSSepherosa Ziehau struct ieee80211_node *
ieee80211_dup_bss(struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN])128532176cfdSRui Paulo ieee80211_dup_bss(struct ieee80211vap *vap,
128632176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
1287841ab66cSSepherosa Ziehau {
128832176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
1289841ab66cSSepherosa Ziehau struct ieee80211_node *ni;
1290841ab66cSSepherosa Ziehau
129132176cfdSRui Paulo ni = ieee80211_alloc_node(&ic->ic_sta, vap, macaddr);
1292841ab66cSSepherosa Ziehau if (ni != NULL) {
129332176cfdSRui Paulo struct ieee80211_node *bss = vap->iv_bss;
1294f186073cSJoerg Sonnenberger /*
129532176cfdSRui Paulo * Inherit from iv_bss.
1296f186073cSJoerg Sonnenberger */
129732176cfdSRui Paulo copy_bss(ni, bss);
129832176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, bss->ni_bssid);
129932176cfdSRui Paulo ieee80211_node_set_chan(ni, bss->ni_chan);
130032176cfdSRui Paulo }
1301f186073cSJoerg Sonnenberger return ni;
1302f186073cSJoerg Sonnenberger }
1303f186073cSJoerg Sonnenberger
130432176cfdSRui Paulo /*
130532176cfdSRui Paulo * Create a bss node for a legacy WDS vap. The far end does
130632176cfdSRui Paulo * not associate so we just create create a new node and
130732176cfdSRui Paulo * simulate an association. The caller is responsible for
130832176cfdSRui Paulo * installing the node as the bss node and handling any further
130932176cfdSRui Paulo * setup work like authorizing the port.
131032176cfdSRui Paulo */
131132176cfdSRui Paulo struct ieee80211_node *
ieee80211_node_create_wds(struct ieee80211vap * vap,const uint8_t bssid[IEEE80211_ADDR_LEN],struct ieee80211_channel * chan)131232176cfdSRui Paulo ieee80211_node_create_wds(struct ieee80211vap *vap,
131332176cfdSRui Paulo const uint8_t bssid[IEEE80211_ADDR_LEN], struct ieee80211_channel *chan)
131432176cfdSRui Paulo {
131532176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
131632176cfdSRui Paulo struct ieee80211_node *ni;
131732176cfdSRui Paulo
131832176cfdSRui Paulo /* XXX check if node already in sta table? */
131932176cfdSRui Paulo ni = ieee80211_alloc_node(&ic->ic_sta, vap, bssid);
132032176cfdSRui Paulo if (ni != NULL) {
132132176cfdSRui Paulo ni->ni_wdsvap = vap;
132232176cfdSRui Paulo IEEE80211_ADDR_COPY(ni->ni_bssid, bssid);
132332176cfdSRui Paulo /*
132432176cfdSRui Paulo * Inherit any manually configured settings.
132532176cfdSRui Paulo */
132632176cfdSRui Paulo copy_bss(ni, vap->iv_bss);
132732176cfdSRui Paulo ieee80211_node_set_chan(ni, chan);
132832176cfdSRui Paulo /* NB: propagate ssid so available to WPA supplicant */
132932176cfdSRui Paulo ni->ni_esslen = vap->iv_des_ssid[0].len;
133032176cfdSRui Paulo memcpy(ni->ni_essid, vap->iv_des_ssid[0].ssid, ni->ni_esslen);
133132176cfdSRui Paulo /* NB: no associd for peer */
133232176cfdSRui Paulo /*
133332176cfdSRui Paulo * There are no management frames to use to
133432176cfdSRui Paulo * discover neighbor capabilities, so blindly
133532176cfdSRui Paulo * propagate the local configuration.
133632176cfdSRui Paulo */
133732176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_WME)
133832176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_QOS;
133932176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
134032176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_FF)
134132176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_FF;
134232176cfdSRui Paulo #endif
134332176cfdSRui Paulo if ((ic->ic_htcaps & IEEE80211_HTC_HT) &&
134432176cfdSRui Paulo (vap->iv_flags_ht & IEEE80211_FHT_HT)) {
134532176cfdSRui Paulo /*
134632176cfdSRui Paulo * Device is HT-capable and HT is enabled for
134732176cfdSRui Paulo * the vap; setup HT operation. On return
134832176cfdSRui Paulo * ni_chan will be adjusted to an HT channel.
134932176cfdSRui Paulo */
135032176cfdSRui Paulo ieee80211_ht_wds_init(ni);
135132176cfdSRui Paulo } else {
135232176cfdSRui Paulo struct ieee80211_channel *c = ni->ni_chan;
135332176cfdSRui Paulo /*
135432176cfdSRui Paulo * Force a legacy channel to be used.
135532176cfdSRui Paulo */
135632176cfdSRui Paulo c = ieee80211_find_channel(ic,
135732176cfdSRui Paulo c->ic_freq, c->ic_flags &~ IEEE80211_CHAN_HT);
135832176cfdSRui Paulo KASSERT(c != NULL, ("no legacy channel, %u/%x",
135932176cfdSRui Paulo ni->ni_chan->ic_freq, ni->ni_chan->ic_flags));
136032176cfdSRui Paulo ni->ni_chan = c;
136132176cfdSRui Paulo }
136232176cfdSRui Paulo }
136332176cfdSRui Paulo return ni;
136432176cfdSRui Paulo }
136532176cfdSRui Paulo
136632176cfdSRui Paulo struct ieee80211_node *
1367841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_node_locked_debug(struct ieee80211_node_table * nt,const uint8_t macaddr[IEEE80211_ADDR_LEN],const char * func,int line)136832176cfdSRui Paulo ieee80211_find_node_locked_debug(struct ieee80211_node_table *nt,
136932176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line)
1370841ab66cSSepherosa Ziehau #else
137132176cfdSRui Paulo ieee80211_find_node_locked(struct ieee80211_node_table *nt,
137232176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
1373841ab66cSSepherosa Ziehau #endif
1374f186073cSJoerg Sonnenberger {
1375f186073cSJoerg Sonnenberger struct ieee80211_node *ni;
1376f186073cSJoerg Sonnenberger int hash;
1377085ff963SMatthew Dillon
1378085ff963SMatthew Dillon IEEE80211_NODE_LOCK_ASSERT(nt);
1379085ff963SMatthew Dillon
138032176cfdSRui Paulo hash = IEEE80211_NODE_HASH(nt->nt_ic, macaddr);
1381841ab66cSSepherosa Ziehau LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
1382f186073cSJoerg Sonnenberger if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
1383841ab66cSSepherosa Ziehau ieee80211_ref_node(ni); /* mark referenced */
1384841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
138532176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
13861e290df3SAntonio Huete Jimenez "%s (%s:%u) %p<%s> refcnt %d\n", __func__,
1387841ab66cSSepherosa Ziehau func, line,
1388085ff963SMatthew Dillon ni, ether_sprintf(ni->ni_macaddr),
1389841ab66cSSepherosa Ziehau ieee80211_node_refcnt(ni));
1390841ab66cSSepherosa Ziehau #endif
1391f186073cSJoerg Sonnenberger return ni;
1392f186073cSJoerg Sonnenberger }
1393f186073cSJoerg Sonnenberger }
1394f186073cSJoerg Sonnenberger return NULL;
1395f186073cSJoerg Sonnenberger }
1396f186073cSJoerg Sonnenberger
1397f186073cSJoerg Sonnenberger struct ieee80211_node *
1398841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_node_debug(struct ieee80211_node_table * nt,const uint8_t macaddr[IEEE80211_ADDR_LEN],const char * func,int line)1399841ab66cSSepherosa Ziehau ieee80211_find_node_debug(struct ieee80211_node_table *nt,
140032176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line)
1401841ab66cSSepherosa Ziehau #else
140232176cfdSRui Paulo ieee80211_find_node(struct ieee80211_node_table *nt,
140332176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
1404841ab66cSSepherosa Ziehau #endif
1405f186073cSJoerg Sonnenberger {
1406f186073cSJoerg Sonnenberger struct ieee80211_node *ni;
1407f186073cSJoerg Sonnenberger
1408085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
140932176cfdSRui Paulo ni = ieee80211_find_node_locked(nt, macaddr);
1410085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
141132176cfdSRui Paulo return ni;
141232176cfdSRui Paulo }
1413841ab66cSSepherosa Ziehau
141432176cfdSRui Paulo struct ieee80211_node *
141532176cfdSRui Paulo #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_vap_node_locked_debug(struct ieee80211_node_table * nt,const struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN],const char * func,int line)141632176cfdSRui Paulo ieee80211_find_vap_node_locked_debug(struct ieee80211_node_table *nt,
141732176cfdSRui Paulo const struct ieee80211vap *vap,
141832176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line)
141932176cfdSRui Paulo #else
142032176cfdSRui Paulo ieee80211_find_vap_node_locked(struct ieee80211_node_table *nt,
142132176cfdSRui Paulo const struct ieee80211vap *vap,
142232176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
142332176cfdSRui Paulo #endif
142432176cfdSRui Paulo {
142532176cfdSRui Paulo struct ieee80211_node *ni;
142632176cfdSRui Paulo int hash;
1427085ff963SMatthew Dillon
1428085ff963SMatthew Dillon IEEE80211_NODE_LOCK_ASSERT(nt);
1429085ff963SMatthew Dillon
143032176cfdSRui Paulo hash = IEEE80211_NODE_HASH(nt->nt_ic, macaddr);
143132176cfdSRui Paulo LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
143232176cfdSRui Paulo if (ni->ni_vap == vap &&
143332176cfdSRui Paulo IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
143432176cfdSRui Paulo ieee80211_ref_node(ni); /* mark referenced */
143532176cfdSRui Paulo #ifdef IEEE80211_DEBUG_REFCNT
143632176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
14371e290df3SAntonio Huete Jimenez "%s (%s:%u) %p<%s> refcnt %d\n", __func__,
143832176cfdSRui Paulo func, line,
1439085ff963SMatthew Dillon ni, ether_sprintf(ni->ni_macaddr),
144032176cfdSRui Paulo ieee80211_node_refcnt(ni));
144132176cfdSRui Paulo #endif
144232176cfdSRui Paulo return ni;
144332176cfdSRui Paulo }
144432176cfdSRui Paulo }
144532176cfdSRui Paulo return NULL;
144632176cfdSRui Paulo }
144732176cfdSRui Paulo
144832176cfdSRui Paulo struct ieee80211_node *
144932176cfdSRui Paulo #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_vap_node_debug(struct ieee80211_node_table * nt,const struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN],const char * func,int line)145032176cfdSRui Paulo ieee80211_find_vap_node_debug(struct ieee80211_node_table *nt,
145132176cfdSRui Paulo const struct ieee80211vap *vap,
145232176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN], const char *func, int line)
145332176cfdSRui Paulo #else
145432176cfdSRui Paulo ieee80211_find_vap_node(struct ieee80211_node_table *nt,
145532176cfdSRui Paulo const struct ieee80211vap *vap,
145632176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
145732176cfdSRui Paulo #endif
145832176cfdSRui Paulo {
145932176cfdSRui Paulo struct ieee80211_node *ni;
146032176cfdSRui Paulo
1461085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
146232176cfdSRui Paulo ni = ieee80211_find_vap_node_locked(nt, vap, macaddr);
1463085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1464f186073cSJoerg Sonnenberger return ni;
1465f186073cSJoerg Sonnenberger }
1466f186073cSJoerg Sonnenberger
1467f186073cSJoerg Sonnenberger /*
1468841ab66cSSepherosa Ziehau * Fake up a node; this handles node discovery in adhoc mode.
1469841ab66cSSepherosa Ziehau * Note that for the driver's benefit we we treat this like
1470841ab66cSSepherosa Ziehau * an association so the driver has an opportunity to setup
1471841ab66cSSepherosa Ziehau * it's private state.
1472841ab66cSSepherosa Ziehau */
1473841ab66cSSepherosa Ziehau struct ieee80211_node *
ieee80211_fakeup_adhoc_node(struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN])147432176cfdSRui Paulo ieee80211_fakeup_adhoc_node(struct ieee80211vap *vap,
1475841ab66cSSepherosa Ziehau const uint8_t macaddr[IEEE80211_ADDR_LEN])
1476841ab66cSSepherosa Ziehau {
1477841ab66cSSepherosa Ziehau struct ieee80211_node *ni;
1478841ab66cSSepherosa Ziehau
1479085ff963SMatthew Dillon IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE | IEEE80211_MSG_ASSOC,
1480085ff963SMatthew Dillon "%s: mac<%s>\n", __func__, ether_sprintf(macaddr));
148132176cfdSRui Paulo ni = ieee80211_dup_bss(vap, macaddr);
1482841ab66cSSepherosa Ziehau if (ni != NULL) {
148332176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
148432176cfdSRui Paulo
1485841ab66cSSepherosa Ziehau /* XXX no rate negotiation; just dup */
148632176cfdSRui Paulo ni->ni_rates = vap->iv_bss->ni_rates;
148732176cfdSRui Paulo if (ieee80211_iserp_rateset(&ni->ni_rates))
148832176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_ERP;
148932176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_AHDEMO) {
149032176cfdSRui Paulo /*
149132176cfdSRui Paulo * In adhoc demo mode there are no management
149232176cfdSRui Paulo * frames to use to discover neighbor capabilities,
149332176cfdSRui Paulo * so blindly propagate the local configuration
149432176cfdSRui Paulo * so we can do interesting things (e.g. use
149532176cfdSRui Paulo * WME to disable ACK's).
149632176cfdSRui Paulo */
149732176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_WME)
149832176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_QOS;
149932176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
150032176cfdSRui Paulo if (vap->iv_flags & IEEE80211_F_FF)
150132176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_FF;
150232176cfdSRui Paulo #endif
150332176cfdSRui Paulo }
150432176cfdSRui Paulo ieee80211_node_setuptxparms(ni);
15054fbce6bdSSascha Wildner ieee80211_ratectl_node_init(ni);
1506841ab66cSSepherosa Ziehau if (ic->ic_newassoc != NULL)
1507841ab66cSSepherosa Ziehau ic->ic_newassoc(ni, 1);
1508841ab66cSSepherosa Ziehau /* XXX not right for 802.1x/WPA */
1509841ab66cSSepherosa Ziehau ieee80211_node_authorize(ni);
1510841ab66cSSepherosa Ziehau }
1511841ab66cSSepherosa Ziehau return ni;
1512841ab66cSSepherosa Ziehau }
1513841ab66cSSepherosa Ziehau
1514841ab66cSSepherosa Ziehau void
ieee80211_init_neighbor(struct ieee80211_node * ni,const struct ieee80211_frame * wh,const struct ieee80211_scanparams * sp)1515841ab66cSSepherosa Ziehau ieee80211_init_neighbor(struct ieee80211_node *ni,
1516841ab66cSSepherosa Ziehau const struct ieee80211_frame *wh,
1517841ab66cSSepherosa Ziehau const struct ieee80211_scanparams *sp)
1518841ab66cSSepherosa Ziehau {
1519085ff963SMatthew Dillon int do_ht_setup = 0;
1520085ff963SMatthew Dillon
1521841ab66cSSepherosa Ziehau ni->ni_esslen = sp->ssid[1];
1522841ab66cSSepherosa Ziehau memcpy(ni->ni_essid, sp->ssid + 2, sp->ssid[1]);
1523841ab66cSSepherosa Ziehau IEEE80211_ADDR_COPY(ni->ni_bssid, wh->i_addr3);
1524841ab66cSSepherosa Ziehau memcpy(ni->ni_tstamp.data, sp->tstamp, sizeof(ni->ni_tstamp));
1525841ab66cSSepherosa Ziehau ni->ni_intval = sp->bintval;
1526841ab66cSSepherosa Ziehau ni->ni_capinfo = sp->capinfo;
1527841ab66cSSepherosa Ziehau ni->ni_chan = ni->ni_ic->ic_curchan;
1528841ab66cSSepherosa Ziehau ni->ni_fhdwell = sp->fhdwell;
1529841ab66cSSepherosa Ziehau ni->ni_fhindex = sp->fhindex;
1530841ab66cSSepherosa Ziehau ni->ni_erp = sp->erp;
1531841ab66cSSepherosa Ziehau ni->ni_timoff = sp->timoff;
153232176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
153332176cfdSRui Paulo if (ni->ni_vap->iv_opmode == IEEE80211_M_MBSS)
153432176cfdSRui Paulo ieee80211_mesh_init_neighbor(ni, wh, sp);
153532176cfdSRui Paulo #endif
153632176cfdSRui Paulo if (ieee80211_ies_init(&ni->ni_ies, sp->ies, sp->ies_len)) {
153732176cfdSRui Paulo ieee80211_ies_expand(&ni->ni_ies);
153832176cfdSRui Paulo if (ni->ni_ies.wme_ie != NULL)
153932176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_QOS;
154032176cfdSRui Paulo else
154132176cfdSRui Paulo ni->ni_flags &= ~IEEE80211_NODE_QOS;
154232176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_SUPERG
154332176cfdSRui Paulo if (ni->ni_ies.ath_ie != NULL)
154432176cfdSRui Paulo ieee80211_parse_ath(ni, ni->ni_ies.ath_ie);
154532176cfdSRui Paulo #endif
1546085ff963SMatthew Dillon if (ni->ni_ies.htcap_ie != NULL)
1547085ff963SMatthew Dillon ieee80211_parse_htcap(ni, ni->ni_ies.htcap_ie);
1548085ff963SMatthew Dillon if (ni->ni_ies.htinfo_ie != NULL)
1549085ff963SMatthew Dillon ieee80211_parse_htinfo(ni, ni->ni_ies.htinfo_ie);
1550085ff963SMatthew Dillon
1551085ff963SMatthew Dillon if ((ni->ni_ies.htcap_ie != NULL) &&
1552085ff963SMatthew Dillon (ni->ni_ies.htinfo_ie != NULL) &&
1553085ff963SMatthew Dillon (ni->ni_vap->iv_flags_ht & IEEE80211_FHT_HT)) {
1554085ff963SMatthew Dillon do_ht_setup = 1;
1555085ff963SMatthew Dillon }
155632176cfdSRui Paulo }
1557841ab66cSSepherosa Ziehau
1558841ab66cSSepherosa Ziehau /* NB: must be after ni_chan is setup */
1559208a1285SSepherosa Ziehau ieee80211_setup_rates(ni, sp->rates, sp->xrates,
1560208a1285SSepherosa Ziehau IEEE80211_F_DOSORT | IEEE80211_F_DOFRATE |
156132176cfdSRui Paulo IEEE80211_F_DONEGO | IEEE80211_F_DODEL);
1562085ff963SMatthew Dillon
1563085ff963SMatthew Dillon /*
1564085ff963SMatthew Dillon * If the neighbor is HT compatible, flip that on.
1565085ff963SMatthew Dillon */
1566085ff963SMatthew Dillon if (do_ht_setup) {
1567085ff963SMatthew Dillon IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_ASSOC,
1568085ff963SMatthew Dillon "%s: doing HT setup\n", __func__);
1569085ff963SMatthew Dillon ieee80211_ht_node_init(ni);
1570085ff963SMatthew Dillon ieee80211_ht_updateparams(ni,
1571085ff963SMatthew Dillon ni->ni_ies.htcap_ie,
1572085ff963SMatthew Dillon ni->ni_ies.htinfo_ie);
1573085ff963SMatthew Dillon ieee80211_setup_htrates(ni,
1574085ff963SMatthew Dillon ni->ni_ies.htcap_ie,
1575085ff963SMatthew Dillon IEEE80211_F_JOIN | IEEE80211_F_DOBRS);
1576085ff963SMatthew Dillon ieee80211_setup_basic_htrates(ni,
1577085ff963SMatthew Dillon ni->ni_ies.htinfo_ie);
1578085ff963SMatthew Dillon ieee80211_node_setuptxparms(ni);
1579085ff963SMatthew Dillon ieee80211_ratectl_node_init(ni);
1580085ff963SMatthew Dillon }
1581841ab66cSSepherosa Ziehau }
1582841ab66cSSepherosa Ziehau
1583841ab66cSSepherosa Ziehau /*
1584841ab66cSSepherosa Ziehau * Do node discovery in adhoc mode on receipt of a beacon
1585841ab66cSSepherosa Ziehau * or probe response frame. Note that for the driver's
1586841ab66cSSepherosa Ziehau * benefit we we treat this like an association so the
1587841ab66cSSepherosa Ziehau * driver has an opportunity to setup it's private state.
1588841ab66cSSepherosa Ziehau */
1589841ab66cSSepherosa Ziehau struct ieee80211_node *
ieee80211_add_neighbor(struct ieee80211vap * vap,const struct ieee80211_frame * wh,const struct ieee80211_scanparams * sp)159032176cfdSRui Paulo ieee80211_add_neighbor(struct ieee80211vap *vap,
1591841ab66cSSepherosa Ziehau const struct ieee80211_frame *wh,
1592841ab66cSSepherosa Ziehau const struct ieee80211_scanparams *sp)
1593841ab66cSSepherosa Ziehau {
1594841ab66cSSepherosa Ziehau struct ieee80211_node *ni;
1595841ab66cSSepherosa Ziehau
1596085ff963SMatthew Dillon IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC,
1597085ff963SMatthew Dillon "%s: mac<%s>\n", __func__, ether_sprintf(wh->i_addr2));
159832176cfdSRui Paulo ni = ieee80211_dup_bss(vap, wh->i_addr2);/* XXX alloc_node? */
1599841ab66cSSepherosa Ziehau if (ni != NULL) {
160032176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
160132176cfdSRui Paulo
1602841ab66cSSepherosa Ziehau ieee80211_init_neighbor(ni, wh, sp);
160332176cfdSRui Paulo if (ieee80211_iserp_rateset(&ni->ni_rates))
160432176cfdSRui Paulo ni->ni_flags |= IEEE80211_NODE_ERP;
160532176cfdSRui Paulo ieee80211_node_setuptxparms(ni);
16064fbce6bdSSascha Wildner ieee80211_ratectl_node_init(ni);
1607841ab66cSSepherosa Ziehau if (ic->ic_newassoc != NULL)
1608841ab66cSSepherosa Ziehau ic->ic_newassoc(ni, 1);
1609841ab66cSSepherosa Ziehau /* XXX not right for 802.1x/WPA */
1610841ab66cSSepherosa Ziehau ieee80211_node_authorize(ni);
1611841ab66cSSepherosa Ziehau }
1612841ab66cSSepherosa Ziehau return ni;
1613841ab66cSSepherosa Ziehau }
1614841ab66cSSepherosa Ziehau
161532176cfdSRui Paulo #define IS_PROBEREQ(wh) \
161632176cfdSRui Paulo ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK|IEEE80211_FC0_SUBTYPE_MASK)) \
161732176cfdSRui Paulo == (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_REQ))
161832176cfdSRui Paulo #define IS_BCAST_PROBEREQ(wh) \
161932176cfdSRui Paulo (IS_PROBEREQ(wh) && IEEE80211_IS_MULTICAST( \
162032176cfdSRui Paulo ((const struct ieee80211_frame *)(wh))->i_addr3))
162132176cfdSRui Paulo
162232176cfdSRui Paulo static __inline struct ieee80211_node *
_find_rxnode(struct ieee80211_node_table * nt,const struct ieee80211_frame_min * wh)162332176cfdSRui Paulo _find_rxnode(struct ieee80211_node_table *nt,
162432176cfdSRui Paulo const struct ieee80211_frame_min *wh)
162532176cfdSRui Paulo {
162632176cfdSRui Paulo if (IS_BCAST_PROBEREQ(wh))
162732176cfdSRui Paulo return NULL; /* spam bcast probe req to all vap's */
162832176cfdSRui Paulo return ieee80211_find_node_locked(nt, wh->i_addr2);
162932176cfdSRui Paulo }
163032176cfdSRui Paulo
1631841ab66cSSepherosa Ziehau /*
1632841ab66cSSepherosa Ziehau * Locate the node for sender, track state, and then pass the
163332176cfdSRui Paulo * (referenced) node up to the 802.11 layer for its use. Note
163432176cfdSRui Paulo * we can return NULL if the sender is not in the table.
1635841ab66cSSepherosa Ziehau */
1636841ab66cSSepherosa Ziehau struct ieee80211_node *
1637841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_rxnode_debug(struct ieee80211com * ic,const struct ieee80211_frame_min * wh,const char * func,int line)1638841ab66cSSepherosa Ziehau ieee80211_find_rxnode_debug(struct ieee80211com *ic,
1639841ab66cSSepherosa Ziehau const struct ieee80211_frame_min *wh, const char *func, int line)
1640841ab66cSSepherosa Ziehau #else
1641841ab66cSSepherosa Ziehau ieee80211_find_rxnode(struct ieee80211com *ic,
1642841ab66cSSepherosa Ziehau const struct ieee80211_frame_min *wh)
1643841ab66cSSepherosa Ziehau #endif
1644841ab66cSSepherosa Ziehau {
1645841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt;
1646841ab66cSSepherosa Ziehau struct ieee80211_node *ni;
1647841ab66cSSepherosa Ziehau
1648841ab66cSSepherosa Ziehau nt = &ic->ic_sta;
1649085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
165032176cfdSRui Paulo ni = _find_rxnode(nt, wh);
1651085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1652841ab66cSSepherosa Ziehau
1653841ab66cSSepherosa Ziehau return ni;
1654841ab66cSSepherosa Ziehau }
1655841ab66cSSepherosa Ziehau
1656841ab66cSSepherosa Ziehau /*
1657841ab66cSSepherosa Ziehau * Like ieee80211_find_rxnode but use the supplied h/w
1658841ab66cSSepherosa Ziehau * key index as a hint to locate the node in the key
1659841ab66cSSepherosa Ziehau * mapping table. If an entry is present at the key
1660841ab66cSSepherosa Ziehau * index we return it; otherwise do a normal lookup and
1661841ab66cSSepherosa Ziehau * update the mapping table if the station has a unicast
1662841ab66cSSepherosa Ziehau * key assigned to it.
1663841ab66cSSepherosa Ziehau */
1664841ab66cSSepherosa Ziehau struct ieee80211_node *
1665841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_rxnode_withkey_debug(struct ieee80211com * ic,const struct ieee80211_frame_min * wh,ieee80211_keyix keyix,const char * func,int line)1666841ab66cSSepherosa Ziehau ieee80211_find_rxnode_withkey_debug(struct ieee80211com *ic,
1667841ab66cSSepherosa Ziehau const struct ieee80211_frame_min *wh, ieee80211_keyix keyix,
1668841ab66cSSepherosa Ziehau const char *func, int line)
1669841ab66cSSepherosa Ziehau #else
1670841ab66cSSepherosa Ziehau ieee80211_find_rxnode_withkey(struct ieee80211com *ic,
1671841ab66cSSepherosa Ziehau const struct ieee80211_frame_min *wh, ieee80211_keyix keyix)
1672841ab66cSSepherosa Ziehau #endif
1673841ab66cSSepherosa Ziehau {
1674841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt;
1675841ab66cSSepherosa Ziehau struct ieee80211_node *ni;
1676841ab66cSSepherosa Ziehau
1677841ab66cSSepherosa Ziehau nt = &ic->ic_sta;
1678085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
1679841ab66cSSepherosa Ziehau if (nt->nt_keyixmap != NULL && keyix < nt->nt_keyixmax)
1680841ab66cSSepherosa Ziehau ni = nt->nt_keyixmap[keyix];
1681841ab66cSSepherosa Ziehau else
1682841ab66cSSepherosa Ziehau ni = NULL;
1683841ab66cSSepherosa Ziehau if (ni == NULL) {
168432176cfdSRui Paulo ni = _find_rxnode(nt, wh);
168532176cfdSRui Paulo if (ni != NULL && nt->nt_keyixmap != NULL) {
1686841ab66cSSepherosa Ziehau /*
1687841ab66cSSepherosa Ziehau * If the station has a unicast key cache slot
1688841ab66cSSepherosa Ziehau * assigned update the key->node mapping table.
1689841ab66cSSepherosa Ziehau */
1690841ab66cSSepherosa Ziehau keyix = ni->ni_ucastkey.wk_rxkeyix;
1691841ab66cSSepherosa Ziehau /* XXX can keyixmap[keyix] != NULL? */
1692841ab66cSSepherosa Ziehau if (keyix < nt->nt_keyixmax &&
1693841ab66cSSepherosa Ziehau nt->nt_keyixmap[keyix] == NULL) {
169432176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap,
169532176cfdSRui Paulo IEEE80211_MSG_NODE,
16961e290df3SAntonio Huete Jimenez "%s: add key map entry %p<%s> refcnt %d\n",
1697085ff963SMatthew Dillon __func__, ni, ether_sprintf(ni->ni_macaddr),
1698841ab66cSSepherosa Ziehau ieee80211_node_refcnt(ni)+1);
1699841ab66cSSepherosa Ziehau nt->nt_keyixmap[keyix] = ieee80211_ref_node(ni);
1700841ab66cSSepherosa Ziehau }
1701841ab66cSSepherosa Ziehau }
1702841ab66cSSepherosa Ziehau } else {
170332176cfdSRui Paulo if (IS_BCAST_PROBEREQ(wh))
170432176cfdSRui Paulo ni = NULL; /* spam bcast probe req to all vap's */
170532176cfdSRui Paulo else
1706841ab66cSSepherosa Ziehau ieee80211_ref_node(ni);
1707841ab66cSSepherosa Ziehau }
1708085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1709085ff963SMatthew Dillon
1710841ab66cSSepherosa Ziehau return ni;
1711841ab66cSSepherosa Ziehau }
171232176cfdSRui Paulo #undef IS_BCAST_PROBEREQ
171332176cfdSRui Paulo #undef IS_PROBEREQ
1714841ab66cSSepherosa Ziehau
1715841ab66cSSepherosa Ziehau /*
1716f186073cSJoerg Sonnenberger * Return a reference to the appropriate node for sending
1717f186073cSJoerg Sonnenberger * a data frame. This handles node discovery in adhoc networks.
1718f186073cSJoerg Sonnenberger */
1719f186073cSJoerg Sonnenberger struct ieee80211_node *
1720841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_find_txnode_debug(struct ieee80211vap * vap,const uint8_t macaddr[IEEE80211_ADDR_LEN],const char * func,int line)172132176cfdSRui Paulo ieee80211_find_txnode_debug(struct ieee80211vap *vap,
172232176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN],
1723841ab66cSSepherosa Ziehau const char *func, int line)
1724841ab66cSSepherosa Ziehau #else
172532176cfdSRui Paulo ieee80211_find_txnode(struct ieee80211vap *vap,
172632176cfdSRui Paulo const uint8_t macaddr[IEEE80211_ADDR_LEN])
1727841ab66cSSepherosa Ziehau #endif
1728f186073cSJoerg Sonnenberger {
172932176cfdSRui Paulo struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
1730f186073cSJoerg Sonnenberger struct ieee80211_node *ni;
1731841ab66cSSepherosa Ziehau
1732f186073cSJoerg Sonnenberger /*
1733f186073cSJoerg Sonnenberger * The destination address should be in the node table
1734841ab66cSSepherosa Ziehau * unless this is a multicast/broadcast frame. We can
1735841ab66cSSepherosa Ziehau * also optimize station mode operation, all frames go
1736841ab66cSSepherosa Ziehau * to the bss node.
1737f186073cSJoerg Sonnenberger */
173832176cfdSRui Paulo /* XXX can't hold lock across dup_bss 'cuz of recursive locking */
1739085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
174032176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_STA ||
174132176cfdSRui Paulo vap->iv_opmode == IEEE80211_M_WDS ||
174232176cfdSRui Paulo IEEE80211_IS_MULTICAST(macaddr))
174332176cfdSRui Paulo ni = ieee80211_ref_node(vap->iv_bss);
174432176cfdSRui Paulo else
174532176cfdSRui Paulo ni = ieee80211_find_node_locked(nt, macaddr);
1746085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1747f186073cSJoerg Sonnenberger
1748841ab66cSSepherosa Ziehau if (ni == NULL) {
174932176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_IBSS ||
175032176cfdSRui Paulo vap->iv_opmode == IEEE80211_M_AHDEMO) {
1751f186073cSJoerg Sonnenberger /*
1752841ab66cSSepherosa Ziehau * In adhoc mode cons up a node for the destination.
1753841ab66cSSepherosa Ziehau * Note that we need an additional reference for the
175432176cfdSRui Paulo * caller to be consistent with
175532176cfdSRui Paulo * ieee80211_find_node_locked.
1756f186073cSJoerg Sonnenberger */
175732176cfdSRui Paulo ni = ieee80211_fakeup_adhoc_node(vap, macaddr);
1758841ab66cSSepherosa Ziehau if (ni != NULL)
175932176cfdSRui Paulo (void) ieee80211_ref_node(ni);
1760841ab66cSSepherosa Ziehau } else {
176132176cfdSRui Paulo IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_OUTPUT, macaddr,
176232176cfdSRui Paulo "no node, discard frame (%s)", __func__);
176332176cfdSRui Paulo vap->iv_stats.is_tx_nonode++;
1764f186073cSJoerg Sonnenberger }
1765f186073cSJoerg Sonnenberger }
1766f186073cSJoerg Sonnenberger return ni;
1767f186073cSJoerg Sonnenberger }
1768f186073cSJoerg Sonnenberger
1769841ab66cSSepherosa Ziehau static void
_ieee80211_free_node(struct ieee80211_node * ni)1770841ab66cSSepherosa Ziehau _ieee80211_free_node(struct ieee80211_node *ni)
1771841ab66cSSepherosa Ziehau {
1772841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt = ni->ni_table;
1773841ab66cSSepherosa Ziehau
177432176cfdSRui Paulo /*
177532176cfdSRui Paulo * NB: careful about referencing the vap as it may be
177632176cfdSRui Paulo * gone if the last reference was held by a driver.
177732176cfdSRui Paulo * We know the com will always be present so it's safe
177832176cfdSRui Paulo * to use ni_ic below to reclaim resources.
177932176cfdSRui Paulo */
178032176cfdSRui Paulo #if 0
178132176cfdSRui Paulo IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
17821e290df3SAntonio Huete Jimenez "%s %p<%s> in %s table\n", __func__, ni,
1783085ff963SMatthew Dillon ether_sprintf(ni->ni_macaddr),
1784841ab66cSSepherosa Ziehau nt != NULL ? nt->nt_name : "<gone>");
178532176cfdSRui Paulo #endif
178632176cfdSRui Paulo if (ni->ni_associd != 0) {
178732176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
178832176cfdSRui Paulo if (vap->iv_aid_bitmap != NULL)
178932176cfdSRui Paulo IEEE80211_AID_CLR(vap, ni->ni_associd);
179032176cfdSRui Paulo }
1791841ab66cSSepherosa Ziehau if (nt != NULL) {
1792841ab66cSSepherosa Ziehau TAILQ_REMOVE(&nt->nt_node, ni, ni_list);
1793841ab66cSSepherosa Ziehau LIST_REMOVE(ni, ni_hash);
1794841ab66cSSepherosa Ziehau }
179532176cfdSRui Paulo ni->ni_ic->ic_node_free(ni);
1796841ab66cSSepherosa Ziehau }
1797841ab66cSSepherosa Ziehau
17984f898719SImre Vadász /*
17994f898719SImre Vadász * Clear any entry in the unicast key mapping table.
18004f898719SImre Vadász */
18014f898719SImre Vadász static int
node_clear_keyixmap(struct ieee80211_node_table * nt,struct ieee80211_node * ni)18024f898719SImre Vadász node_clear_keyixmap(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
18034f898719SImre Vadász {
18044f898719SImre Vadász ieee80211_keyix keyix;
18054f898719SImre Vadász
18064f898719SImre Vadász keyix = ni->ni_ucastkey.wk_rxkeyix;
18074f898719SImre Vadász if (nt->nt_keyixmap != NULL && keyix < nt->nt_keyixmax &&
18084f898719SImre Vadász nt->nt_keyixmap[keyix] == ni) {
18094f898719SImre Vadász IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
18104f898719SImre Vadász "%s: %p<%s> clear key map entry %u\n",
18114f898719SImre Vadász __func__, ni, ether_sprintf(ni->ni_macaddr), keyix);
18124f898719SImre Vadász nt->nt_keyixmap[keyix] = NULL;
18134f898719SImre Vadász ieee80211_node_decref(ni);
18144f898719SImre Vadász return 1;
18154f898719SImre Vadász }
18164f898719SImre Vadász
18174f898719SImre Vadász return 0;
18184f898719SImre Vadász }
18194f898719SImre Vadász
1820841ab66cSSepherosa Ziehau void
1821841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
ieee80211_free_node_debug(struct ieee80211_node * ni,const char * func,int line)1822841ab66cSSepherosa Ziehau ieee80211_free_node_debug(struct ieee80211_node *ni, const char *func, int line)
1823841ab66cSSepherosa Ziehau #else
1824841ab66cSSepherosa Ziehau ieee80211_free_node(struct ieee80211_node *ni)
1825841ab66cSSepherosa Ziehau #endif
1826841ab66cSSepherosa Ziehau {
1827841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt = ni->ni_table;
1828841ab66cSSepherosa Ziehau
1829841ab66cSSepherosa Ziehau #ifdef IEEE80211_DEBUG_REFCNT
183032176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
18311e290df3SAntonio Huete Jimenez "%s (%s:%u) %p<%s> refcnt %d\n", __func__, func, line, ni,
1832085ff963SMatthew Dillon ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni)-1);
1833841ab66cSSepherosa Ziehau #endif
1834841ab66cSSepherosa Ziehau if (nt != NULL) {
1835085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
1836841ab66cSSepherosa Ziehau if (ieee80211_node_dectestref(ni)) {
1837841ab66cSSepherosa Ziehau /*
1838841ab66cSSepherosa Ziehau * Last reference, reclaim state.
1839841ab66cSSepherosa Ziehau */
1840841ab66cSSepherosa Ziehau _ieee80211_free_node(ni);
18414f898719SImre Vadász } else if (ieee80211_node_refcnt(ni) == 1)
18424f898719SImre Vadász if (node_clear_keyixmap(nt, ni))
1843841ab66cSSepherosa Ziehau _ieee80211_free_node(ni);
1844085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1845841ab66cSSepherosa Ziehau } else {
1846841ab66cSSepherosa Ziehau if (ieee80211_node_dectestref(ni))
1847841ab66cSSepherosa Ziehau _ieee80211_free_node(ni);
1848841ab66cSSepherosa Ziehau }
1849f186073cSJoerg Sonnenberger }
1850f186073cSJoerg Sonnenberger
1851f186073cSJoerg Sonnenberger /*
1852841ab66cSSepherosa Ziehau * Reclaim a unicast key and clear any key cache state.
1853841ab66cSSepherosa Ziehau */
1854841ab66cSSepherosa Ziehau int
ieee80211_node_delucastkey(struct ieee80211_node * ni)1855841ab66cSSepherosa Ziehau ieee80211_node_delucastkey(struct ieee80211_node *ni)
1856841ab66cSSepherosa Ziehau {
1857841ab66cSSepherosa Ziehau struct ieee80211com *ic = ni->ni_ic;
1858841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt = &ic->ic_sta;
1859841ab66cSSepherosa Ziehau struct ieee80211_node *nikey;
1860841ab66cSSepherosa Ziehau ieee80211_keyix keyix;
1861085ff963SMatthew Dillon int isowned, status;
1862841ab66cSSepherosa Ziehau
186332176cfdSRui Paulo /*
186432176cfdSRui Paulo * NB: We must beware of LOR here; deleting the key
186532176cfdSRui Paulo * can cause the crypto layer to block traffic updates
186632176cfdSRui Paulo * which can generate a LOR against the node table lock;
186732176cfdSRui Paulo * grab it here and stash the key index for our use below.
186832176cfdSRui Paulo *
186932176cfdSRui Paulo * Must also beware of recursion on the node table lock.
187032176cfdSRui Paulo * When called from node_cleanup we may already have
187132176cfdSRui Paulo * the node table lock held. Unfortunately there's no
187232176cfdSRui Paulo * way to separate out this path so we must do this
187332176cfdSRui Paulo * conditionally.
187432176cfdSRui Paulo */
1875085ff963SMatthew Dillon isowned = IEEE80211_NODE_IS_LOCKED(nt);
1876085ff963SMatthew Dillon if (!isowned)
1877085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
187832176cfdSRui Paulo nikey = NULL;
187932176cfdSRui Paulo status = 1; /* NB: success */
188032176cfdSRui Paulo if (ni->ni_ucastkey.wk_keyix != IEEE80211_KEYIX_NONE) {
1881841ab66cSSepherosa Ziehau keyix = ni->ni_ucastkey.wk_rxkeyix;
188232176cfdSRui Paulo status = ieee80211_crypto_delkey(ni->ni_vap, &ni->ni_ucastkey);
1883841ab66cSSepherosa Ziehau if (nt->nt_keyixmap != NULL && keyix < nt->nt_keyixmax) {
1884841ab66cSSepherosa Ziehau nikey = nt->nt_keyixmap[keyix];
1885fc6d0222SSascha Wildner nt->nt_keyixmap[keyix] = NULL;
188632176cfdSRui Paulo }
188732176cfdSRui Paulo }
1888085ff963SMatthew Dillon if (!isowned)
1889085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
1890841ab66cSSepherosa Ziehau
1891841ab66cSSepherosa Ziehau if (nikey != NULL) {
1892841ab66cSSepherosa Ziehau KASSERT(nikey == ni,
1893841ab66cSSepherosa Ziehau ("key map out of sync, ni %p nikey %p", ni, nikey));
189432176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
18951e290df3SAntonio Huete Jimenez "%s: delete key map entry %p<%s> refcnt %d\n",
1896085ff963SMatthew Dillon __func__, ni, ether_sprintf(ni->ni_macaddr),
1897841ab66cSSepherosa Ziehau ieee80211_node_refcnt(ni)-1);
1898841ab66cSSepherosa Ziehau ieee80211_free_node(ni);
1899841ab66cSSepherosa Ziehau }
1900841ab66cSSepherosa Ziehau return status;
1901841ab66cSSepherosa Ziehau }
1902841ab66cSSepherosa Ziehau
1903841ab66cSSepherosa Ziehau /*
1904841ab66cSSepherosa Ziehau * Reclaim a node. If this is the last reference count then
1905841ab66cSSepherosa Ziehau * do the normal free work. Otherwise remove it from the node
1906841ab66cSSepherosa Ziehau * table and mark it gone by clearing the back-reference.
1907841ab66cSSepherosa Ziehau */
1908841ab66cSSepherosa Ziehau static void
node_reclaim(struct ieee80211_node_table * nt,struct ieee80211_node * ni)1909841ab66cSSepherosa Ziehau node_reclaim(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
1910841ab66cSSepherosa Ziehau {
1911085ff963SMatthew Dillon
1912085ff963SMatthew Dillon IEEE80211_NODE_LOCK_ASSERT(nt);
1913841ab66cSSepherosa Ziehau
191432176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
19151e290df3SAntonio Huete Jimenez "%s: remove %p<%s> from %s table, refcnt %d\n",
1916085ff963SMatthew Dillon __func__, ni, ether_sprintf(ni->ni_macaddr),
1917841ab66cSSepherosa Ziehau nt->nt_name, ieee80211_node_refcnt(ni)-1);
1918841ab66cSSepherosa Ziehau /*
1919841ab66cSSepherosa Ziehau * Clear any entry in the unicast key mapping table.
1920841ab66cSSepherosa Ziehau * We need to do it here so rx lookups don't find it
1921841ab66cSSepherosa Ziehau * in the mapping table even if it's not in the hash
1922841ab66cSSepherosa Ziehau * table. We cannot depend on the mapping table entry
1923841ab66cSSepherosa Ziehau * being cleared because the node may not be free'd.
1924841ab66cSSepherosa Ziehau */
19254f898719SImre Vadász (void)node_clear_keyixmap(nt, ni);
1926841ab66cSSepherosa Ziehau if (!ieee80211_node_dectestref(ni)) {
1927841ab66cSSepherosa Ziehau /*
1928841ab66cSSepherosa Ziehau * Other references are present, just remove the
1929841ab66cSSepherosa Ziehau * node from the table so it cannot be found. When
1930841ab66cSSepherosa Ziehau * the references are dropped storage will be
1931841ab66cSSepherosa Ziehau * reclaimed.
1932841ab66cSSepherosa Ziehau */
1933841ab66cSSepherosa Ziehau TAILQ_REMOVE(&nt->nt_node, ni, ni_list);
1934841ab66cSSepherosa Ziehau LIST_REMOVE(ni, ni_hash);
1935841ab66cSSepherosa Ziehau ni->ni_table = NULL; /* clear reference */
1936841ab66cSSepherosa Ziehau } else
1937841ab66cSSepherosa Ziehau _ieee80211_free_node(ni);
1938841ab66cSSepherosa Ziehau }
1939841ab66cSSepherosa Ziehau
1940841ab66cSSepherosa Ziehau /*
194132176cfdSRui Paulo * Node table support.
1942841ab66cSSepherosa Ziehau */
194332176cfdSRui Paulo
1944841ab66cSSepherosa Ziehau static void
ieee80211_node_table_init(struct ieee80211com * ic,struct ieee80211_node_table * nt,const char * name,int inact,int keyixmax)194532176cfdSRui Paulo ieee80211_node_table_init(struct ieee80211com *ic,
194632176cfdSRui Paulo struct ieee80211_node_table *nt,
194732176cfdSRui Paulo const char *name, int inact, int keyixmax)
1948841ab66cSSepherosa Ziehau {
1949085ff963SMatthew Dillon
195032176cfdSRui Paulo nt->nt_ic = ic;
19514f898719SImre Vadász IEEE80211_NODE_LOCK_INIT(nt, ic->ic_name);
19524f898719SImre Vadász IEEE80211_NODE_ITERATE_LOCK_INIT(nt, ic->ic_name);
195332176cfdSRui Paulo TAILQ_INIT(&nt->nt_node);
195432176cfdSRui Paulo nt->nt_name = name;
195532176cfdSRui Paulo nt->nt_scangen = 1;
195632176cfdSRui Paulo nt->nt_inact_init = inact;
195732176cfdSRui Paulo nt->nt_keyixmax = keyixmax;
195832176cfdSRui Paulo if (nt->nt_keyixmax > 0) {
19594f655ef5SMatthew Dillon #if defined(__DragonFly__)
196032176cfdSRui Paulo nt->nt_keyixmap = (struct ieee80211_node **) kmalloc(
196132176cfdSRui Paulo keyixmax * sizeof(struct ieee80211_node *),
1962fcaa651dSRui Paulo M_80211_NODE, M_INTWAIT | M_ZERO);
19634f655ef5SMatthew Dillon #else
19644f655ef5SMatthew Dillon nt->nt_keyixmap = (struct ieee80211_node **) IEEE80211_MALLOC(
19654f655ef5SMatthew Dillon keyixmax * sizeof(struct ieee80211_node *),
19664f655ef5SMatthew Dillon M_80211_NODE,
19674f655ef5SMatthew Dillon IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
19684f655ef5SMatthew Dillon #endif
196932176cfdSRui Paulo if (nt->nt_keyixmap == NULL)
19704f898719SImre Vadász ic_printf(ic,
197132176cfdSRui Paulo "Cannot allocate key index map with %u entries\n",
197232176cfdSRui Paulo keyixmax);
197332176cfdSRui Paulo } else
197432176cfdSRui Paulo nt->nt_keyixmap = NULL;
1975841ab66cSSepherosa Ziehau }
197632176cfdSRui Paulo
197732176cfdSRui Paulo static void
ieee80211_node_table_reset(struct ieee80211_node_table * nt,struct ieee80211vap * match)197832176cfdSRui Paulo ieee80211_node_table_reset(struct ieee80211_node_table *nt,
197932176cfdSRui Paulo struct ieee80211vap *match)
198032176cfdSRui Paulo {
198132176cfdSRui Paulo struct ieee80211_node *ni, *next;
198232176cfdSRui Paulo
1983085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
1984085ff963SMatthew Dillon TAILQ_FOREACH_SAFE(ni, &nt->nt_node, ni_list, next) {
198532176cfdSRui Paulo if (match != NULL && ni->ni_vap != match)
198632176cfdSRui Paulo continue;
198732176cfdSRui Paulo /* XXX can this happen? if so need's work */
198832176cfdSRui Paulo if (ni->ni_associd != 0) {
198932176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
199032176cfdSRui Paulo
199132176cfdSRui Paulo if (vap->iv_auth->ia_node_leave != NULL)
199232176cfdSRui Paulo vap->iv_auth->ia_node_leave(ni);
199332176cfdSRui Paulo if (vap->iv_aid_bitmap != NULL)
199432176cfdSRui Paulo IEEE80211_AID_CLR(vap, ni->ni_associd);
199532176cfdSRui Paulo }
199632176cfdSRui Paulo ni->ni_wdsvap = NULL; /* clear reference */
1997841ab66cSSepherosa Ziehau node_reclaim(nt, ni);
1998841ab66cSSepherosa Ziehau }
199932176cfdSRui Paulo if (match != NULL && match->iv_opmode == IEEE80211_M_WDS) {
200032176cfdSRui Paulo /*
200132176cfdSRui Paulo * Make a separate pass to clear references to this vap
200232176cfdSRui Paulo * held by DWDS entries. They will not be matched above
200332176cfdSRui Paulo * because ni_vap will point to the ap vap but we still
200432176cfdSRui Paulo * need to clear ni_wdsvap when the WDS vap is destroyed
200532176cfdSRui Paulo * and/or reset.
200632176cfdSRui Paulo */
2007085ff963SMatthew Dillon TAILQ_FOREACH_SAFE(ni, &nt->nt_node, ni_list, next)
200832176cfdSRui Paulo if (ni->ni_wdsvap == match)
200932176cfdSRui Paulo ni->ni_wdsvap = NULL;
201032176cfdSRui Paulo }
2011085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
2012841ab66cSSepherosa Ziehau }
2013841ab66cSSepherosa Ziehau
201432176cfdSRui Paulo static void
ieee80211_node_table_cleanup(struct ieee80211_node_table * nt)201532176cfdSRui Paulo ieee80211_node_table_cleanup(struct ieee80211_node_table *nt)
201632176cfdSRui Paulo {
201732176cfdSRui Paulo ieee80211_node_table_reset(nt, NULL);
201832176cfdSRui Paulo if (nt->nt_keyixmap != NULL) {
201932176cfdSRui Paulo #ifdef DIAGNOSTIC
202032176cfdSRui Paulo /* XXX verify all entries are NULL */
202132176cfdSRui Paulo int i;
202232176cfdSRui Paulo for (i = 0; i < nt->nt_keyixmax; i++)
202332176cfdSRui Paulo if (nt->nt_keyixmap[i] != NULL)
20242fafbbf5SRui Paulo kprintf("%s: %s[%u] still active\n", __func__,
202532176cfdSRui Paulo nt->nt_name, i);
202632176cfdSRui Paulo #endif
20274f655ef5SMatthew Dillon IEEE80211_FREE(nt->nt_keyixmap, M_80211_NODE);
202832176cfdSRui Paulo nt->nt_keyixmap = NULL;
202932176cfdSRui Paulo }
2030085ff963SMatthew Dillon IEEE80211_NODE_ITERATE_LOCK_DESTROY(nt);
2031085ff963SMatthew Dillon IEEE80211_NODE_LOCK_DESTROY(nt);
2032841ab66cSSepherosa Ziehau }
2033841ab66cSSepherosa Ziehau
2034841ab66cSSepherosa Ziehau /*
2035841ab66cSSepherosa Ziehau * Timeout inactive stations and do related housekeeping.
2036841ab66cSSepherosa Ziehau * Note that we cannot hold the node lock while sending a
2037841ab66cSSepherosa Ziehau * frame as this would lead to a LOR. Instead we use a
2038841ab66cSSepherosa Ziehau * generation number to mark nodes that we've scanned and
2039841ab66cSSepherosa Ziehau * drop the lock and restart a scan if we have to time out
2040841ab66cSSepherosa Ziehau * a node. Since we are single-threaded by virtue of
2041f186073cSJoerg Sonnenberger * controlling the inactivity timer we can be sure this will
2042f186073cSJoerg Sonnenberger * process each node only once.
2043f186073cSJoerg Sonnenberger */
2044841ab66cSSepherosa Ziehau static void
ieee80211_timeout_stations(struct ieee80211com * ic)204532176cfdSRui Paulo ieee80211_timeout_stations(struct ieee80211com *ic)
2046f186073cSJoerg Sonnenberger {
204732176cfdSRui Paulo struct ieee80211_node_table *nt = &ic->ic_sta;
204832176cfdSRui Paulo struct ieee80211vap *vap;
204932176cfdSRui Paulo struct ieee80211_node *ni;
205032176cfdSRui Paulo int gen = 0;
2051f186073cSJoerg Sonnenberger
2052085ff963SMatthew Dillon IEEE80211_NODE_ITERATE_LOCK(nt);
205332176cfdSRui Paulo gen = ++nt->nt_scangen;
205432176cfdSRui Paulo restart:
2055085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
205632176cfdSRui Paulo TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
205732176cfdSRui Paulo if (ni->ni_scangen == gen) /* previously handled */
205832176cfdSRui Paulo continue;
205932176cfdSRui Paulo ni->ni_scangen = gen;
2060f186073cSJoerg Sonnenberger /*
2061841ab66cSSepherosa Ziehau * Ignore entries for which have yet to receive an
2062841ab66cSSepherosa Ziehau * authentication frame. These are transient and
2063841ab66cSSepherosa Ziehau * will be reclaimed when the last reference to them
2064841ab66cSSepherosa Ziehau * goes away (when frame xmits complete).
2065f186073cSJoerg Sonnenberger */
206632176cfdSRui Paulo vap = ni->ni_vap;
206732176cfdSRui Paulo /*
206832176cfdSRui Paulo * Only process stations when in RUN state. This
206932176cfdSRui Paulo * insures, for example, that we don't timeout an
207032176cfdSRui Paulo * inactive station during CAC. Note that CSA state
207132176cfdSRui Paulo * is actually handled in ieee80211_node_timeout as
207232176cfdSRui Paulo * it applies to more than timeout processing.
207332176cfdSRui Paulo */
207432176cfdSRui Paulo if (vap->iv_state != IEEE80211_S_RUN)
207532176cfdSRui Paulo continue;
207632176cfdSRui Paulo /* XXX can vap be NULL? */
207732176cfdSRui Paulo if ((vap->iv_opmode == IEEE80211_M_HOSTAP ||
207832176cfdSRui Paulo vap->iv_opmode == IEEE80211_M_STA) &&
2079841ab66cSSepherosa Ziehau (ni->ni_flags & IEEE80211_NODE_AREF) == 0)
2080841ab66cSSepherosa Ziehau continue;
2081841ab66cSSepherosa Ziehau /*
2082841ab66cSSepherosa Ziehau * Free fragment if not needed anymore
2083841ab66cSSepherosa Ziehau * (last fragment older than 1s).
208432176cfdSRui Paulo * XXX doesn't belong here, move to node_age
2085841ab66cSSepherosa Ziehau */
2086841ab66cSSepherosa Ziehau if (ni->ni_rxfrag[0] != NULL &&
2087841ab66cSSepherosa Ziehau ticks > ni->ni_rxfragstamp + hz) {
2088841ab66cSSepherosa Ziehau m_freem(ni->ni_rxfrag[0]);
2089841ab66cSSepherosa Ziehau ni->ni_rxfrag[0] = NULL;
2090841ab66cSSepherosa Ziehau }
209132176cfdSRui Paulo if (ni->ni_inact > 0) {
209232176cfdSRui Paulo ni->ni_inact--;
209332176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
209432176cfdSRui Paulo "%s: inact %u inact_reload %u nrates %u",
209532176cfdSRui Paulo __func__, ni->ni_inact, ni->ni_inact_reload,
209632176cfdSRui Paulo ni->ni_rates.rs_nrates);
209732176cfdSRui Paulo }
2098841ab66cSSepherosa Ziehau /*
2099841ab66cSSepherosa Ziehau * Special case ourself; we may be idle for extended periods
2100841ab66cSSepherosa Ziehau * of time and regardless reclaiming our state is wrong.
210132176cfdSRui Paulo * XXX run ic_node_age
2102841ab66cSSepherosa Ziehau */
210332176cfdSRui Paulo if (ni == vap->iv_bss)
2104841ab66cSSepherosa Ziehau continue;
210532176cfdSRui Paulo if (ni->ni_associd != 0 ||
210632176cfdSRui Paulo (vap->iv_opmode == IEEE80211_M_IBSS ||
210732176cfdSRui Paulo vap->iv_opmode == IEEE80211_M_AHDEMO)) {
2108841ab66cSSepherosa Ziehau /*
210932176cfdSRui Paulo * Age/drain resources held by the station.
2110841ab66cSSepherosa Ziehau */
211132176cfdSRui Paulo ic->ic_node_age(ni);
2112841ab66cSSepherosa Ziehau /*
2113841ab66cSSepherosa Ziehau * Probe the station before time it out. We
2114841ab66cSSepherosa Ziehau * send a null data frame which may not be
2115841ab66cSSepherosa Ziehau * universally supported by drivers (need it
2116841ab66cSSepherosa Ziehau * for ps-poll support so it should be...).
211732176cfdSRui Paulo *
211832176cfdSRui Paulo * XXX don't probe the station unless we've
211932176cfdSRui Paulo * received a frame from them (and have
212032176cfdSRui Paulo * some idea of the rates they are capable
212132176cfdSRui Paulo * of); this will get fixed more properly
212232176cfdSRui Paulo * soon with better handling of the rate set.
2123841ab66cSSepherosa Ziehau */
212432176cfdSRui Paulo if ((vap->iv_flags_ext & IEEE80211_FEXT_INACT) &&
212532176cfdSRui Paulo (0 < ni->ni_inact &&
212632176cfdSRui Paulo ni->ni_inact <= vap->iv_inact_probe) &&
212732176cfdSRui Paulo ni->ni_rates.rs_nrates != 0) {
212832176cfdSRui Paulo IEEE80211_NOTE(vap,
2129841ab66cSSepherosa Ziehau IEEE80211_MSG_INACT | IEEE80211_MSG_NODE,
2130841ab66cSSepherosa Ziehau ni, "%s",
2131841ab66cSSepherosa Ziehau "probe station due to inactivity");
2132841ab66cSSepherosa Ziehau /*
2133841ab66cSSepherosa Ziehau * Grab a reference before unlocking the table
2134841ab66cSSepherosa Ziehau * so the node cannot be reclaimed before we
2135841ab66cSSepherosa Ziehau * send the frame. ieee80211_send_nulldata
2136841ab66cSSepherosa Ziehau * understands we've done this and reclaims the
2137841ab66cSSepherosa Ziehau * ref for us as needed.
2138841ab66cSSepherosa Ziehau */
2139841ab66cSSepherosa Ziehau ieee80211_ref_node(ni);
2140085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
2141841ab66cSSepherosa Ziehau ieee80211_send_nulldata(ni);
2142841ab66cSSepherosa Ziehau /* XXX stat? */
214332176cfdSRui Paulo goto restart;
2144841ab66cSSepherosa Ziehau }
2145841ab66cSSepherosa Ziehau }
214632176cfdSRui Paulo if ((vap->iv_flags_ext & IEEE80211_FEXT_INACT) &&
214732176cfdSRui Paulo ni->ni_inact <= 0) {
214832176cfdSRui Paulo IEEE80211_NOTE(vap,
2149841ab66cSSepherosa Ziehau IEEE80211_MSG_INACT | IEEE80211_MSG_NODE, ni,
2150841ab66cSSepherosa Ziehau "station timed out due to inactivity "
2151841ab66cSSepherosa Ziehau "(refcnt %u)", ieee80211_node_refcnt(ni));
2152841ab66cSSepherosa Ziehau /*
2153841ab66cSSepherosa Ziehau * Send a deauthenticate frame and drop the station.
2154841ab66cSSepherosa Ziehau * This is somewhat complicated due to reference counts
2155841ab66cSSepherosa Ziehau * and locking. At this point a station will typically
2156841ab66cSSepherosa Ziehau * have a reference count of 1. ieee80211_node_leave
2157841ab66cSSepherosa Ziehau * will do a "free" of the node which will drop the
2158841ab66cSSepherosa Ziehau * reference count. But in the meantime a reference
2159841ab66cSSepherosa Ziehau * wil be held by the deauth frame. The actual reclaim
2160841ab66cSSepherosa Ziehau * of the node will happen either after the tx is
2161841ab66cSSepherosa Ziehau * completed or by ieee80211_node_leave.
216232176cfdSRui Paulo *
216332176cfdSRui Paulo * Separately we must drop the node lock before sending
216432176cfdSRui Paulo * in case the driver takes a lock, as this can result
216532176cfdSRui Paulo * in a LOR between the node lock and the driver lock.
2166841ab66cSSepherosa Ziehau */
216732176cfdSRui Paulo ieee80211_ref_node(ni);
2168085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
2169841ab66cSSepherosa Ziehau if (ni->ni_associd != 0) {
217032176cfdSRui Paulo IEEE80211_SEND_MGMT(ni,
2171f186073cSJoerg Sonnenberger IEEE80211_FC0_SUBTYPE_DEAUTH,
2172f186073cSJoerg Sonnenberger IEEE80211_REASON_AUTH_EXPIRE);
2173841ab66cSSepherosa Ziehau }
217432176cfdSRui Paulo ieee80211_node_leave(ni);
217532176cfdSRui Paulo ieee80211_free_node(ni);
217632176cfdSRui Paulo vap->iv_stats.is_node_timeout++;
217732176cfdSRui Paulo goto restart;
2178f186073cSJoerg Sonnenberger }
2179f186073cSJoerg Sonnenberger }
2180085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
2181085ff963SMatthew Dillon
2182085ff963SMatthew Dillon IEEE80211_NODE_ITERATE_UNLOCK(nt);
218332176cfdSRui Paulo }
2184841ab66cSSepherosa Ziehau
218532176cfdSRui Paulo /*
218632176cfdSRui Paulo * Aggressively reclaim resources. This should be used
218732176cfdSRui Paulo * only in a critical situation to reclaim mbuf resources.
218832176cfdSRui Paulo */
218932176cfdSRui Paulo void
ieee80211_drain(struct ieee80211com * ic)219032176cfdSRui Paulo ieee80211_drain(struct ieee80211com *ic)
219132176cfdSRui Paulo {
219232176cfdSRui Paulo struct ieee80211_node_table *nt = &ic->ic_sta;
219332176cfdSRui Paulo struct ieee80211vap *vap;
219432176cfdSRui Paulo struct ieee80211_node *ni;
219532176cfdSRui Paulo
2196085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
219732176cfdSRui Paulo TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
219832176cfdSRui Paulo /*
219932176cfdSRui Paulo * Ignore entries for which have yet to receive an
220032176cfdSRui Paulo * authentication frame. These are transient and
220132176cfdSRui Paulo * will be reclaimed when the last reference to them
220232176cfdSRui Paulo * goes away (when frame xmits complete).
220332176cfdSRui Paulo */
220432176cfdSRui Paulo vap = ni->ni_vap;
220532176cfdSRui Paulo /*
220632176cfdSRui Paulo * Only process stations when in RUN state. This
220732176cfdSRui Paulo * insures, for example, that we don't timeout an
220832176cfdSRui Paulo * inactive station during CAC. Note that CSA state
220932176cfdSRui Paulo * is actually handled in ieee80211_node_timeout as
221032176cfdSRui Paulo * it applies to more than timeout processing.
221132176cfdSRui Paulo */
221232176cfdSRui Paulo if (vap->iv_state != IEEE80211_S_RUN)
221332176cfdSRui Paulo continue;
221432176cfdSRui Paulo /* XXX can vap be NULL? */
221532176cfdSRui Paulo if ((vap->iv_opmode == IEEE80211_M_HOSTAP ||
221632176cfdSRui Paulo vap->iv_opmode == IEEE80211_M_STA) &&
221732176cfdSRui Paulo (ni->ni_flags & IEEE80211_NODE_AREF) == 0)
221832176cfdSRui Paulo continue;
221932176cfdSRui Paulo /*
222032176cfdSRui Paulo * Free fragments.
222132176cfdSRui Paulo * XXX doesn't belong here, move to node_drain
222232176cfdSRui Paulo */
222332176cfdSRui Paulo if (ni->ni_rxfrag[0] != NULL) {
222432176cfdSRui Paulo m_freem(ni->ni_rxfrag[0]);
222532176cfdSRui Paulo ni->ni_rxfrag[0] = NULL;
222632176cfdSRui Paulo }
222732176cfdSRui Paulo /*
222832176cfdSRui Paulo * Drain resources held by the station.
222932176cfdSRui Paulo */
223032176cfdSRui Paulo ic->ic_node_drain(ni);
223132176cfdSRui Paulo }
2232085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
223332176cfdSRui Paulo }
223432176cfdSRui Paulo
223532176cfdSRui Paulo /*
223632176cfdSRui Paulo * Per-ieee80211com inactivity timer callback.
223732176cfdSRui Paulo */
2238085ff963SMatthew Dillon void
ieee80211_node_timeout(void * arg)2239085ff963SMatthew Dillon ieee80211_node_timeout(void *arg)
224032176cfdSRui Paulo {
224132176cfdSRui Paulo struct ieee80211com *ic = arg;
224232176cfdSRui Paulo
224332176cfdSRui Paulo /*
224432176cfdSRui Paulo * Defer timeout processing if a channel switch is pending.
224532176cfdSRui Paulo * We typically need to be mute so not doing things that
224632176cfdSRui Paulo * might generate frames is good to handle in one place.
22474f655ef5SMatthew Dillon * Suppressing the station timeout processing may extend the
224832176cfdSRui Paulo * lifetime of inactive stations (by not decrementing their
224932176cfdSRui Paulo * idle counters) but this should be ok unless the CSA is
225032176cfdSRui Paulo * active for an unusually long time.
225132176cfdSRui Paulo */
225232176cfdSRui Paulo if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0) {
225332176cfdSRui Paulo ieee80211_scan_timeout(ic);
225432176cfdSRui Paulo ieee80211_timeout_stations(ic);
225532176cfdSRui Paulo ieee80211_ageq_age(&ic->ic_stageq, IEEE80211_INACT_WAIT);
225632176cfdSRui Paulo
2257085ff963SMatthew Dillon IEEE80211_LOCK(ic);
225832176cfdSRui Paulo ieee80211_erp_timeout(ic);
225932176cfdSRui Paulo ieee80211_ht_timeout(ic);
2260085ff963SMatthew Dillon IEEE80211_UNLOCK(ic);
226132176cfdSRui Paulo }
226232176cfdSRui Paulo callout_reset(&ic->ic_inact, IEEE80211_INACT_WAIT*hz,
2263085ff963SMatthew Dillon ieee80211_node_timeout, ic);
2264f186073cSJoerg Sonnenberger }
2265f186073cSJoerg Sonnenberger
2266085ff963SMatthew Dillon /*
2267085ff963SMatthew Dillon * Iterate over the node table and return an array of ref'ed nodes.
2268085ff963SMatthew Dillon *
2269085ff963SMatthew Dillon * This is separated out from calling the actual node function so that
2270085ff963SMatthew Dillon * no LORs will occur.
2271085ff963SMatthew Dillon *
2272085ff963SMatthew Dillon * If there are too many nodes (ie, the number of nodes doesn't fit
2273085ff963SMatthew Dillon * within 'max_aid' entries) then the node references will be freed
2274085ff963SMatthew Dillon * and an error will be returned.
2275085ff963SMatthew Dillon *
2276085ff963SMatthew Dillon * The responsibility of allocating and freeing "ni_arr" is up to
2277085ff963SMatthew Dillon * the caller.
2278085ff963SMatthew Dillon */
2279085ff963SMatthew Dillon int
ieee80211_iterate_nt(struct ieee80211_node_table * nt,struct ieee80211_node ** ni_arr,uint16_t max_aid)2280085ff963SMatthew Dillon ieee80211_iterate_nt(struct ieee80211_node_table *nt,
2281085ff963SMatthew Dillon struct ieee80211_node **ni_arr, uint16_t max_aid)
2282085ff963SMatthew Dillon {
2283085ff963SMatthew Dillon u_int gen;
2284085ff963SMatthew Dillon int i, j, ret;
2285085ff963SMatthew Dillon struct ieee80211_node *ni;
2286085ff963SMatthew Dillon
2287085ff963SMatthew Dillon IEEE80211_NODE_ITERATE_LOCK(nt);
2288085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
2289085ff963SMatthew Dillon
2290085ff963SMatthew Dillon gen = ++nt->nt_scangen;
2291085ff963SMatthew Dillon i = ret = 0;
2292085ff963SMatthew Dillon
2293085ff963SMatthew Dillon /*
2294085ff963SMatthew Dillon * We simply assume here that since the node
2295085ff963SMatthew Dillon * scan generation doesn't change (as
2296085ff963SMatthew Dillon * we are holding both the node table and
2297085ff963SMatthew Dillon * node table iteration locks), we can simply
2298085ff963SMatthew Dillon * assign it to the node here.
2299085ff963SMatthew Dillon */
2300085ff963SMatthew Dillon TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
2301085ff963SMatthew Dillon if (i >= max_aid) {
2302085ff963SMatthew Dillon ret = E2BIG;
23034f898719SImre Vadász ic_printf(nt->nt_ic, "Node array overflow: max=%u",
23044f898719SImre Vadász max_aid);
2305085ff963SMatthew Dillon break;
2306085ff963SMatthew Dillon }
2307085ff963SMatthew Dillon ni_arr[i] = ieee80211_ref_node(ni);
2308085ff963SMatthew Dillon ni_arr[i]->ni_scangen = gen;
2309085ff963SMatthew Dillon i++;
2310085ff963SMatthew Dillon }
2311085ff963SMatthew Dillon
2312085ff963SMatthew Dillon /*
2313085ff963SMatthew Dillon * It's safe to unlock here.
2314085ff963SMatthew Dillon *
2315085ff963SMatthew Dillon * If we're successful, the list is returned.
2316085ff963SMatthew Dillon * If we're unsuccessful, the list is ignored
2317085ff963SMatthew Dillon * and we remove our references.
2318085ff963SMatthew Dillon *
2319085ff963SMatthew Dillon * This avoids any potential LOR with
2320085ff963SMatthew Dillon * ieee80211_free_node().
2321085ff963SMatthew Dillon */
2322085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
2323085ff963SMatthew Dillon IEEE80211_NODE_ITERATE_UNLOCK(nt);
2324085ff963SMatthew Dillon
2325085ff963SMatthew Dillon /*
2326085ff963SMatthew Dillon * If ret is non-zero, we hit some kind of error.
2327085ff963SMatthew Dillon * Rather than walking some nodes, we'll walk none
2328085ff963SMatthew Dillon * of them.
2329085ff963SMatthew Dillon */
2330085ff963SMatthew Dillon if (ret) {
2331085ff963SMatthew Dillon for (j = 0; j < i; j++) {
2332085ff963SMatthew Dillon /* ieee80211_free_node() locks by itself */
2333085ff963SMatthew Dillon ieee80211_free_node(ni_arr[j]);
2334085ff963SMatthew Dillon }
2335085ff963SMatthew Dillon }
2336085ff963SMatthew Dillon
2337085ff963SMatthew Dillon return (ret);
2338085ff963SMatthew Dillon }
2339085ff963SMatthew Dillon
2340085ff963SMatthew Dillon /*
2341085ff963SMatthew Dillon * Just a wrapper, so we don't have to change every ieee80211_iterate_nodes()
2342085ff963SMatthew Dillon * reference in the source.
2343085ff963SMatthew Dillon *
2344085ff963SMatthew Dillon * Note that this fetches 'max_aid' from the first VAP, rather than finding
2345085ff963SMatthew Dillon * the largest max_aid from all VAPs.
2346085ff963SMatthew Dillon */
2347f186073cSJoerg Sonnenberger void
ieee80211_iterate_nodes(struct ieee80211_node_table * nt,ieee80211_iter_func * f,void * arg)234832176cfdSRui Paulo ieee80211_iterate_nodes(struct ieee80211_node_table *nt,
234932176cfdSRui Paulo ieee80211_iter_func *f, void *arg)
2350f186073cSJoerg Sonnenberger {
2351085ff963SMatthew Dillon struct ieee80211_node **ni_arr;
2352085ff963SMatthew Dillon size_t size;
2353085ff963SMatthew Dillon int i;
2354085ff963SMatthew Dillon uint16_t max_aid;
2355085ff963SMatthew Dillon struct ieee80211vap *vap;
2356f186073cSJoerg Sonnenberger
2357085ff963SMatthew Dillon /* Overdoing it default */
2358085ff963SMatthew Dillon max_aid = IEEE80211_AID_MAX;
2359085ff963SMatthew Dillon
2360085ff963SMatthew Dillon /* Handle the case of there being no vaps just yet */
2361085ff963SMatthew Dillon vap = TAILQ_FIRST(&nt->nt_ic->ic_vaps);
2362085ff963SMatthew Dillon if (vap != NULL)
2363085ff963SMatthew Dillon max_aid = vap->iv_max_aid;
2364085ff963SMatthew Dillon
2365085ff963SMatthew Dillon size = max_aid * sizeof(struct ieee80211_node *);
23664f655ef5SMatthew Dillon #if defined(__DragonFly__)
2367085ff963SMatthew Dillon ni_arr = (struct ieee80211_node **) kmalloc(size, M_80211_NODE,
2368085ff963SMatthew Dillon M_INTWAIT | M_ZERO);
23694f655ef5SMatthew Dillon #else
23704f655ef5SMatthew Dillon ni_arr = (struct ieee80211_node **) IEEE80211_MALLOC(size, M_80211_NODE,
23714f655ef5SMatthew Dillon IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
23724f655ef5SMatthew Dillon #endif
2373085ff963SMatthew Dillon if (ni_arr == NULL)
2374085ff963SMatthew Dillon return;
2375085ff963SMatthew Dillon
2376085ff963SMatthew Dillon /*
2377085ff963SMatthew Dillon * If this fails, the node table won't have any
2378085ff963SMatthew Dillon * valid entries - ieee80211_iterate_nt() frees
2379085ff963SMatthew Dillon * the references to them. So don't try walking
2380085ff963SMatthew Dillon * the table; just skip to the end and free the
2381085ff963SMatthew Dillon * temporary memory.
2382085ff963SMatthew Dillon */
2383085ff963SMatthew Dillon if (ieee80211_iterate_nt(nt, ni_arr, max_aid) != 0)
2384085ff963SMatthew Dillon goto done;
2385085ff963SMatthew Dillon
2386085ff963SMatthew Dillon for (i = 0; i < max_aid; i++) {
2387085ff963SMatthew Dillon if (ni_arr[i] == NULL) /* end of the list */
2388085ff963SMatthew Dillon break;
2389085ff963SMatthew Dillon (*f)(arg, ni_arr[i]);
2390085ff963SMatthew Dillon /* ieee80211_free_node() locks by itself */
2391085ff963SMatthew Dillon ieee80211_free_node(ni_arr[i]);
239232176cfdSRui Paulo }
2393085ff963SMatthew Dillon
2394085ff963SMatthew Dillon done:
23954f655ef5SMatthew Dillon IEEE80211_FREE(ni_arr, M_80211_NODE);
2396841ab66cSSepherosa Ziehau }
2397841ab66cSSepherosa Ziehau
2398841ab66cSSepherosa Ziehau void
ieee80211_dump_node(struct ieee80211_node_table * nt,struct ieee80211_node * ni)2399841ab66cSSepherosa Ziehau ieee80211_dump_node(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
2400841ab66cSSepherosa Ziehau {
2401085ff963SMatthew Dillon kprintf("0x%p: mac %s refcnt %d\n", ni,
2402085ff963SMatthew Dillon ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni));
240332176cfdSRui Paulo kprintf("\tscangen %u authmode %u flags 0x%x\n",
240432176cfdSRui Paulo ni->ni_scangen, ni->ni_authmode, ni->ni_flags);
2405a6ec04bcSSascha Wildner kprintf("\tassocid 0x%x txpower %u vlan %u\n",
2406841ab66cSSepherosa Ziehau ni->ni_associd, ni->ni_txpower, ni->ni_vlan);
2407a6ec04bcSSascha Wildner kprintf("\ttxseq %u rxseq %u fragno %u rxfragstamp %u\n",
240832176cfdSRui Paulo ni->ni_txseqs[IEEE80211_NONQOS_TID],
240932176cfdSRui Paulo ni->ni_rxseqs[IEEE80211_NONQOS_TID] >> IEEE80211_SEQ_SEQ_SHIFT,
241032176cfdSRui Paulo ni->ni_rxseqs[IEEE80211_NONQOS_TID] & IEEE80211_SEQ_FRAG_MASK,
2411841ab66cSSepherosa Ziehau ni->ni_rxfragstamp);
241232176cfdSRui Paulo kprintf("\trssi %d noise %d intval %u capinfo 0x%x\n",
241332176cfdSRui Paulo node_getrssi(ni), ni->ni_noise,
241432176cfdSRui Paulo ni->ni_intval, ni->ni_capinfo);
24151e290df3SAntonio Huete Jimenez kprintf("\tbssid %s essid \"%.*s\" channel %u:0x%x\n",
2416085ff963SMatthew Dillon ether_sprintf(ni->ni_bssid),
2417841ab66cSSepherosa Ziehau ni->ni_esslen, ni->ni_essid,
2418841ab66cSSepherosa Ziehau ni->ni_chan->ic_freq, ni->ni_chan->ic_flags);
241932176cfdSRui Paulo kprintf("\tinact %u inact_reload %u txrate %u\n",
242032176cfdSRui Paulo ni->ni_inact, ni->ni_inact_reload, ni->ni_txrate);
242132176cfdSRui Paulo kprintf("\thtcap %x htparam %x htctlchan %u ht2ndchan %u\n",
242232176cfdSRui Paulo ni->ni_htcap, ni->ni_htparam,
242332176cfdSRui Paulo ni->ni_htctlchan, ni->ni_ht2ndchan);
242432176cfdSRui Paulo kprintf("\thtopmode %x htstbc %x chw %u\n",
242532176cfdSRui Paulo ni->ni_htopmode, ni->ni_htstbc, ni->ni_chw);
2426841ab66cSSepherosa Ziehau }
2427841ab66cSSepherosa Ziehau
2428841ab66cSSepherosa Ziehau void
ieee80211_dump_nodes(struct ieee80211_node_table * nt)2429841ab66cSSepherosa Ziehau ieee80211_dump_nodes(struct ieee80211_node_table *nt)
2430841ab66cSSepherosa Ziehau {
2431841ab66cSSepherosa Ziehau ieee80211_iterate_nodes(nt,
2432841ab66cSSepherosa Ziehau (ieee80211_iter_func *) ieee80211_dump_node, nt);
2433841ab66cSSepherosa Ziehau }
2434841ab66cSSepherosa Ziehau
243532176cfdSRui Paulo static void
ieee80211_notify_erp_locked(struct ieee80211com * ic)243632176cfdSRui Paulo ieee80211_notify_erp_locked(struct ieee80211com *ic)
243732176cfdSRui Paulo {
243832176cfdSRui Paulo struct ieee80211vap *vap;
243932176cfdSRui Paulo
2440085ff963SMatthew Dillon IEEE80211_LOCK_ASSERT(ic);
2441085ff963SMatthew Dillon
244232176cfdSRui Paulo TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
244332176cfdSRui Paulo if (vap->iv_opmode == IEEE80211_M_HOSTAP)
244432176cfdSRui Paulo ieee80211_beacon_notify(vap, IEEE80211_BEACON_ERP);
244532176cfdSRui Paulo }
244632176cfdSRui Paulo
244732176cfdSRui Paulo void
ieee80211_notify_erp(struct ieee80211com * ic)244832176cfdSRui Paulo ieee80211_notify_erp(struct ieee80211com *ic)
244932176cfdSRui Paulo {
2450085ff963SMatthew Dillon IEEE80211_LOCK(ic);
245132176cfdSRui Paulo ieee80211_notify_erp_locked(ic);
2452085ff963SMatthew Dillon IEEE80211_UNLOCK(ic);
245332176cfdSRui Paulo }
245432176cfdSRui Paulo
2455841ab66cSSepherosa Ziehau /*
2456841ab66cSSepherosa Ziehau * Handle a station joining an 11g network.
2457841ab66cSSepherosa Ziehau */
2458841ab66cSSepherosa Ziehau static void
ieee80211_node_join_11g(struct ieee80211_node * ni)245932176cfdSRui Paulo ieee80211_node_join_11g(struct ieee80211_node *ni)
2460841ab66cSSepherosa Ziehau {
246132176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
246232176cfdSRui Paulo
2463085ff963SMatthew Dillon IEEE80211_LOCK_ASSERT(ic);
2464085ff963SMatthew Dillon
2465841ab66cSSepherosa Ziehau /*
2466841ab66cSSepherosa Ziehau * Station isn't capable of short slot time. Bump
2467841ab66cSSepherosa Ziehau * the count of long slot time stations and disable
2468841ab66cSSepherosa Ziehau * use of short slot time. Note that the actual switch
2469841ab66cSSepherosa Ziehau * over to long slot time use may not occur until the
2470841ab66cSSepherosa Ziehau * next beacon transmission (per sec. 7.3.1.4 of 11g).
2471841ab66cSSepherosa Ziehau */
2472841ab66cSSepherosa Ziehau if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) == 0) {
2473841ab66cSSepherosa Ziehau ic->ic_longslotsta++;
247432176cfdSRui Paulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni,
247532176cfdSRui Paulo "station needs long slot time, count %d",
247632176cfdSRui Paulo ic->ic_longslotsta);
2477841ab66cSSepherosa Ziehau /* XXX vap's w/ conflicting needs won't work */
247832176cfdSRui Paulo if (!IEEE80211_IS_CHAN_108G(ic->ic_bsschan)) {
247932176cfdSRui Paulo /*
248032176cfdSRui Paulo * Don't force slot time when switched to turbo
248132176cfdSRui Paulo * mode as non-ERP stations won't be present; this
248232176cfdSRui Paulo * need only be done when on the normal G channel.
248332176cfdSRui Paulo */
2484841ab66cSSepherosa Ziehau ieee80211_set_shortslottime(ic, 0);
2485841ab66cSSepherosa Ziehau }
248632176cfdSRui Paulo }
2487841ab66cSSepherosa Ziehau /*
2488841ab66cSSepherosa Ziehau * If the new station is not an ERP station
2489841ab66cSSepherosa Ziehau * then bump the counter and enable protection
2490841ab66cSSepherosa Ziehau * if configured.
2491841ab66cSSepherosa Ziehau */
249232176cfdSRui Paulo if (!ieee80211_iserp_rateset(&ni->ni_rates)) {
2493841ab66cSSepherosa Ziehau ic->ic_nonerpsta++;
249432176cfdSRui Paulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni,
249532176cfdSRui Paulo "station is !ERP, %d non-ERP stations associated",
249632176cfdSRui Paulo ic->ic_nonerpsta);
2497841ab66cSSepherosa Ziehau /*
2498841ab66cSSepherosa Ziehau * If station does not support short preamble
2499841ab66cSSepherosa Ziehau * then we must enable use of Barker preamble.
2500841ab66cSSepherosa Ziehau */
2501841ab66cSSepherosa Ziehau if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE) == 0) {
250232176cfdSRui Paulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni,
250332176cfdSRui Paulo "%s", "station needs long preamble");
250432176cfdSRui Paulo ic->ic_flags |= IEEE80211_F_USEBARKER;
250532176cfdSRui Paulo ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE;
2506841ab66cSSepherosa Ziehau }
250732176cfdSRui Paulo /*
250832176cfdSRui Paulo * If protection is configured and this is the first
250932176cfdSRui Paulo * indication we should use protection, enable it.
251032176cfdSRui Paulo */
251132176cfdSRui Paulo if (ic->ic_protmode != IEEE80211_PROT_NONE &&
251232176cfdSRui Paulo ic->ic_nonerpsta == 1 &&
251332176cfdSRui Paulo (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) == 0) {
251432176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_ASSOC,
251532176cfdSRui Paulo "%s: enable use of protection\n", __func__);
251632176cfdSRui Paulo ic->ic_flags |= IEEE80211_F_USEPROT;
251732176cfdSRui Paulo ieee80211_notify_erp_locked(ic);
251832176cfdSRui Paulo }
2519841ab66cSSepherosa Ziehau } else
2520841ab66cSSepherosa Ziehau ni->ni_flags |= IEEE80211_NODE_ERP;
2521841ab66cSSepherosa Ziehau }
2522841ab66cSSepherosa Ziehau
2523841ab66cSSepherosa Ziehau void
ieee80211_node_join(struct ieee80211_node * ni,int resp)252432176cfdSRui Paulo ieee80211_node_join(struct ieee80211_node *ni, int resp)
2525841ab66cSSepherosa Ziehau {
252632176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
252732176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
2528841ab66cSSepherosa Ziehau int newassoc;
2529841ab66cSSepherosa Ziehau
2530841ab66cSSepherosa Ziehau if (ni->ni_associd == 0) {
2531841ab66cSSepherosa Ziehau uint16_t aid;
2532841ab66cSSepherosa Ziehau
253332176cfdSRui Paulo KASSERT(vap->iv_aid_bitmap != NULL, ("no aid bitmap"));
2534841ab66cSSepherosa Ziehau /*
2535841ab66cSSepherosa Ziehau * It would be good to search the bitmap
2536841ab66cSSepherosa Ziehau * more efficiently, but this will do for now.
2537841ab66cSSepherosa Ziehau */
253832176cfdSRui Paulo for (aid = 1; aid < vap->iv_max_aid; aid++) {
253932176cfdSRui Paulo if (!IEEE80211_AID_ISSET(vap, aid))
2540841ab66cSSepherosa Ziehau break;
2541841ab66cSSepherosa Ziehau }
254232176cfdSRui Paulo if (aid >= vap->iv_max_aid) {
254332176cfdSRui Paulo IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_TOOMANY);
254432176cfdSRui Paulo ieee80211_node_leave(ni);
2545841ab66cSSepherosa Ziehau return;
2546841ab66cSSepherosa Ziehau }
2547841ab66cSSepherosa Ziehau ni->ni_associd = aid | 0xc000;
2548cec73927SMatthew Dillon ni->ni_jointime = time_uptime;
2549085ff963SMatthew Dillon IEEE80211_LOCK(ic);
255032176cfdSRui Paulo IEEE80211_AID_SET(vap, ni->ni_associd);
255132176cfdSRui Paulo vap->iv_sta_assoc++;
2552841ab66cSSepherosa Ziehau ic->ic_sta_assoc++;
255332176cfdSRui Paulo
255432176cfdSRui Paulo if (IEEE80211_IS_CHAN_HT(ic->ic_bsschan))
255532176cfdSRui Paulo ieee80211_ht_node_join(ni);
255632176cfdSRui Paulo if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) &&
255732176cfdSRui Paulo IEEE80211_IS_CHAN_FULL(ic->ic_bsschan))
255832176cfdSRui Paulo ieee80211_node_join_11g(ni);
2559085ff963SMatthew Dillon IEEE80211_UNLOCK(ic);
256032176cfdSRui Paulo
2561841ab66cSSepherosa Ziehau newassoc = 1;
2562841ab66cSSepherosa Ziehau } else
2563841ab66cSSepherosa Ziehau newassoc = 0;
2564841ab66cSSepherosa Ziehau
256532176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_DEBUG, ni,
256632176cfdSRui Paulo "station associated at aid %d: %s preamble, %s slot time%s%s%s%s%s%s%s%s",
2567841ab66cSSepherosa Ziehau IEEE80211_NODE_AID(ni),
2568841ab66cSSepherosa Ziehau ic->ic_flags & IEEE80211_F_SHPREAMBLE ? "short" : "long",
2569841ab66cSSepherosa Ziehau ic->ic_flags & IEEE80211_F_SHSLOT ? "short" : "long",
2570841ab66cSSepherosa Ziehau ic->ic_flags & IEEE80211_F_USEPROT ? ", protection" : "",
257132176cfdSRui Paulo ni->ni_flags & IEEE80211_NODE_QOS ? ", QoS" : "",
257232176cfdSRui Paulo ni->ni_flags & IEEE80211_NODE_HT ?
257332176cfdSRui Paulo (ni->ni_chw == 40 ? ", HT40" : ", HT20") : "",
257432176cfdSRui Paulo ni->ni_flags & IEEE80211_NODE_AMPDU ? " (+AMPDU)" : "",
257532176cfdSRui Paulo ni->ni_flags & IEEE80211_NODE_MIMO_RTS ? " (+SMPS-DYN)" :
257632176cfdSRui Paulo ni->ni_flags & IEEE80211_NODE_MIMO_PS ? " (+SMPS)" : "",
257732176cfdSRui Paulo ni->ni_flags & IEEE80211_NODE_RIFS ? " (+RIFS)" : "",
257832176cfdSRui Paulo IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_FF) ?
257932176cfdSRui Paulo ", fast-frames" : "",
258032176cfdSRui Paulo IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_TURBOP) ?
258132176cfdSRui Paulo ", turbo" : ""
2582841ab66cSSepherosa Ziehau );
2583841ab66cSSepherosa Ziehau
258432176cfdSRui Paulo ieee80211_node_setuptxparms(ni);
25854fbce6bdSSascha Wildner ieee80211_ratectl_node_init(ni);
2586841ab66cSSepherosa Ziehau /* give driver a chance to setup state like ni_txrate */
2587841ab66cSSepherosa Ziehau if (ic->ic_newassoc != NULL)
2588841ab66cSSepherosa Ziehau ic->ic_newassoc(ni, newassoc);
258932176cfdSRui Paulo IEEE80211_SEND_MGMT(ni, resp, IEEE80211_STATUS_SUCCESS);
2590841ab66cSSepherosa Ziehau /* tell the authenticator about new station */
259132176cfdSRui Paulo if (vap->iv_auth->ia_node_join != NULL)
259232176cfdSRui Paulo vap->iv_auth->ia_node_join(ni);
259332176cfdSRui Paulo ieee80211_notify_node_join(ni,
259432176cfdSRui Paulo resp == IEEE80211_FC0_SUBTYPE_ASSOC_RESP);
259532176cfdSRui Paulo }
259632176cfdSRui Paulo
259732176cfdSRui Paulo static void
disable_protection(struct ieee80211com * ic)259832176cfdSRui Paulo disable_protection(struct ieee80211com *ic)
259932176cfdSRui Paulo {
260032176cfdSRui Paulo KASSERT(ic->ic_nonerpsta == 0 &&
260132176cfdSRui Paulo (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) == 0,
260232176cfdSRui Paulo ("%d non ERP stations, flags 0x%x", ic->ic_nonerpsta,
260332176cfdSRui Paulo ic->ic_flags_ext));
260432176cfdSRui Paulo
260532176cfdSRui Paulo ic->ic_flags &= ~IEEE80211_F_USEPROT;
260632176cfdSRui Paulo /* XXX verify mode? */
260732176cfdSRui Paulo if (ic->ic_caps & IEEE80211_C_SHPREAMBLE) {
260832176cfdSRui Paulo ic->ic_flags |= IEEE80211_F_SHPREAMBLE;
260932176cfdSRui Paulo ic->ic_flags &= ~IEEE80211_F_USEBARKER;
261032176cfdSRui Paulo }
261132176cfdSRui Paulo ieee80211_notify_erp_locked(ic);
2612841ab66cSSepherosa Ziehau }
2613841ab66cSSepherosa Ziehau
2614841ab66cSSepherosa Ziehau /*
2615841ab66cSSepherosa Ziehau * Handle a station leaving an 11g network.
2616841ab66cSSepherosa Ziehau */
2617841ab66cSSepherosa Ziehau static void
ieee80211_node_leave_11g(struct ieee80211_node * ni)261832176cfdSRui Paulo ieee80211_node_leave_11g(struct ieee80211_node *ni)
2619841ab66cSSepherosa Ziehau {
262032176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
2621841ab66cSSepherosa Ziehau
2622085ff963SMatthew Dillon IEEE80211_LOCK_ASSERT(ic);
2623085ff963SMatthew Dillon
262432176cfdSRui Paulo KASSERT(IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan),
262532176cfdSRui Paulo ("not in 11g, bss %u:0x%x", ic->ic_bsschan->ic_freq,
262632176cfdSRui Paulo ic->ic_bsschan->ic_flags));
2627841ab66cSSepherosa Ziehau
2628841ab66cSSepherosa Ziehau /*
2629841ab66cSSepherosa Ziehau * If a long slot station do the slot time bookkeeping.
2630841ab66cSSepherosa Ziehau */
2631841ab66cSSepherosa Ziehau if ((ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) == 0) {
2632841ab66cSSepherosa Ziehau KASSERT(ic->ic_longslotsta > 0,
2633841ab66cSSepherosa Ziehau ("bogus long slot station count %d", ic->ic_longslotsta));
2634841ab66cSSepherosa Ziehau ic->ic_longslotsta--;
263532176cfdSRui Paulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni,
263632176cfdSRui Paulo "long slot time station leaves, count now %d",
263732176cfdSRui Paulo ic->ic_longslotsta);
2638841ab66cSSepherosa Ziehau if (ic->ic_longslotsta == 0) {
2639841ab66cSSepherosa Ziehau /*
2640841ab66cSSepherosa Ziehau * Re-enable use of short slot time if supported
2641841ab66cSSepherosa Ziehau * and not operating in IBSS mode (per spec).
2642841ab66cSSepherosa Ziehau */
2643841ab66cSSepherosa Ziehau if ((ic->ic_caps & IEEE80211_C_SHSLOT) &&
2644841ab66cSSepherosa Ziehau ic->ic_opmode != IEEE80211_M_IBSS) {
264532176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap,
264632176cfdSRui Paulo IEEE80211_MSG_ASSOC,
2647841ab66cSSepherosa Ziehau "%s: re-enable use of short slot time\n",
2648841ab66cSSepherosa Ziehau __func__);
2649841ab66cSSepherosa Ziehau ieee80211_set_shortslottime(ic, 1);
2650841ab66cSSepherosa Ziehau }
2651841ab66cSSepherosa Ziehau }
2652841ab66cSSepherosa Ziehau }
2653841ab66cSSepherosa Ziehau /*
2654841ab66cSSepherosa Ziehau * If a non-ERP station do the protection-related bookkeeping.
2655841ab66cSSepherosa Ziehau */
2656841ab66cSSepherosa Ziehau if ((ni->ni_flags & IEEE80211_NODE_ERP) == 0) {
2657841ab66cSSepherosa Ziehau KASSERT(ic->ic_nonerpsta > 0,
2658841ab66cSSepherosa Ziehau ("bogus non-ERP station count %d", ic->ic_nonerpsta));
2659841ab66cSSepherosa Ziehau ic->ic_nonerpsta--;
266032176cfdSRui Paulo IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_ASSOC, ni,
266132176cfdSRui Paulo "non-ERP station leaves, count now %d%s", ic->ic_nonerpsta,
266232176cfdSRui Paulo (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) ?
266332176cfdSRui Paulo " (non-ERP sta present)" : "");
266432176cfdSRui Paulo if (ic->ic_nonerpsta == 0 &&
266532176cfdSRui Paulo (ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) == 0) {
266632176cfdSRui Paulo IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_ASSOC,
2667841ab66cSSepherosa Ziehau "%s: disable use of protection\n", __func__);
266832176cfdSRui Paulo disable_protection(ic);
2669841ab66cSSepherosa Ziehau }
2670841ab66cSSepherosa Ziehau }
2671841ab66cSSepherosa Ziehau }
267232176cfdSRui Paulo
267332176cfdSRui Paulo /*
267432176cfdSRui Paulo * Time out presence of an overlapping bss with non-ERP
267532176cfdSRui Paulo * stations. When operating in hostap mode we listen for
267632176cfdSRui Paulo * beacons from other stations and if we identify a non-ERP
267732176cfdSRui Paulo * station is present we enable protection. To identify
267832176cfdSRui Paulo * when all non-ERP stations are gone we time out this
267932176cfdSRui Paulo * condition.
268032176cfdSRui Paulo */
268132176cfdSRui Paulo static void
ieee80211_erp_timeout(struct ieee80211com * ic)268232176cfdSRui Paulo ieee80211_erp_timeout(struct ieee80211com *ic)
268332176cfdSRui Paulo {
2684085ff963SMatthew Dillon
2685085ff963SMatthew Dillon IEEE80211_LOCK_ASSERT(ic);
2686085ff963SMatthew Dillon
268732176cfdSRui Paulo if ((ic->ic_flags_ext & IEEE80211_FEXT_NONERP_PR) &&
26884f655ef5SMatthew Dillon ieee80211_time_after(ticks, ic->ic_lastnonerp + IEEE80211_NONERP_PRESENT_AGE)) {
268932176cfdSRui Paulo #if 0
269032176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC, ni,
269132176cfdSRui Paulo "%s", "age out non-ERP sta present on channel");
269232176cfdSRui Paulo #endif
269332176cfdSRui Paulo ic->ic_flags_ext &= ~IEEE80211_FEXT_NONERP_PR;
269432176cfdSRui Paulo if (ic->ic_nonerpsta == 0)
269532176cfdSRui Paulo disable_protection(ic);
269632176cfdSRui Paulo }
2697841ab66cSSepherosa Ziehau }
2698841ab66cSSepherosa Ziehau
2699841ab66cSSepherosa Ziehau /*
2700841ab66cSSepherosa Ziehau * Handle bookkeeping for station deauthentication/disassociation
2701841ab66cSSepherosa Ziehau * when operating as an ap.
2702841ab66cSSepherosa Ziehau */
2703841ab66cSSepherosa Ziehau void
ieee80211_node_leave(struct ieee80211_node * ni)270432176cfdSRui Paulo ieee80211_node_leave(struct ieee80211_node *ni)
2705841ab66cSSepherosa Ziehau {
270632176cfdSRui Paulo struct ieee80211com *ic = ni->ni_ic;
270732176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
2708841ab66cSSepherosa Ziehau struct ieee80211_node_table *nt = ni->ni_table;
2709841ab66cSSepherosa Ziehau
271032176cfdSRui Paulo IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_DEBUG, ni,
271132176cfdSRui Paulo "station with aid %d leaves", IEEE80211_NODE_AID(ni));
2712841ab66cSSepherosa Ziehau
271332176cfdSRui Paulo KASSERT(vap->iv_opmode != IEEE80211_M_STA,
271432176cfdSRui Paulo ("unexpected operating mode %u", vap->iv_opmode));
2715841ab66cSSepherosa Ziehau /*
2716841ab66cSSepherosa Ziehau * If node wasn't previously associated all
2717841ab66cSSepherosa Ziehau * we need to do is reclaim the reference.
2718841ab66cSSepherosa Ziehau */
2719841ab66cSSepherosa Ziehau /* XXX ibss mode bypasses 11g and notification */
2720841ab66cSSepherosa Ziehau if (ni->ni_associd == 0)
2721841ab66cSSepherosa Ziehau goto done;
2722841ab66cSSepherosa Ziehau /*
2723841ab66cSSepherosa Ziehau * Tell the authenticator the station is leaving.
2724841ab66cSSepherosa Ziehau * Note that we must do this before yanking the
2725841ab66cSSepherosa Ziehau * association id as the authenticator uses the
2726841ab66cSSepherosa Ziehau * associd to locate it's state block.
2727841ab66cSSepherosa Ziehau */
272832176cfdSRui Paulo if (vap->iv_auth->ia_node_leave != NULL)
272932176cfdSRui Paulo vap->iv_auth->ia_node_leave(ni);
273032176cfdSRui Paulo
2731085ff963SMatthew Dillon IEEE80211_LOCK(ic);
273232176cfdSRui Paulo IEEE80211_AID_CLR(vap, ni->ni_associd);
273332176cfdSRui Paulo vap->iv_sta_assoc--;
2734841ab66cSSepherosa Ziehau ic->ic_sta_assoc--;
2735841ab66cSSepherosa Ziehau
273632176cfdSRui Paulo if (IEEE80211_IS_CHAN_HT(ic->ic_bsschan))
273732176cfdSRui Paulo ieee80211_ht_node_leave(ni);
273832176cfdSRui Paulo if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan) &&
273932176cfdSRui Paulo IEEE80211_IS_CHAN_FULL(ic->ic_bsschan))
274032176cfdSRui Paulo ieee80211_node_leave_11g(ni);
2741085ff963SMatthew Dillon IEEE80211_UNLOCK(ic);
2742841ab66cSSepherosa Ziehau /*
2743841ab66cSSepherosa Ziehau * Cleanup station state. In particular clear various
2744841ab66cSSepherosa Ziehau * state that might otherwise be reused if the node
2745841ab66cSSepherosa Ziehau * is reused before the reference count goes to zero
2746841ab66cSSepherosa Ziehau * (and memory is reclaimed).
2747841ab66cSSepherosa Ziehau */
274832176cfdSRui Paulo ieee80211_sta_leave(ni);
2749841ab66cSSepherosa Ziehau done:
2750841ab66cSSepherosa Ziehau /*
2751841ab66cSSepherosa Ziehau * Remove the node from any table it's recorded in and
2752841ab66cSSepherosa Ziehau * drop the caller's reference. Removal from the table
2753841ab66cSSepherosa Ziehau * is important to insure the node is not reprocessed
2754841ab66cSSepherosa Ziehau * for inactivity.
2755841ab66cSSepherosa Ziehau */
275632176cfdSRui Paulo if (nt != NULL) {
2757085ff963SMatthew Dillon IEEE80211_NODE_LOCK(nt);
2758841ab66cSSepherosa Ziehau node_reclaim(nt, ni);
2759085ff963SMatthew Dillon IEEE80211_NODE_UNLOCK(nt);
276032176cfdSRui Paulo } else
2761841ab66cSSepherosa Ziehau ieee80211_free_node(ni);
2762841ab66cSSepherosa Ziehau }
2763841ab66cSSepherosa Ziehau
276432176cfdSRui Paulo struct rssiinfo {
276532176cfdSRui Paulo struct ieee80211vap *vap;
276632176cfdSRui Paulo int rssi_samples;
276732176cfdSRui Paulo uint32_t rssi_total;
276832176cfdSRui Paulo };
276932176cfdSRui Paulo
277032176cfdSRui Paulo static void
get_hostap_rssi(void * arg,struct ieee80211_node * ni)277132176cfdSRui Paulo get_hostap_rssi(void *arg, struct ieee80211_node *ni)
277232176cfdSRui Paulo {
277332176cfdSRui Paulo struct rssiinfo *info = arg;
277432176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
277532176cfdSRui Paulo int8_t rssi;
277632176cfdSRui Paulo
277732176cfdSRui Paulo if (info->vap != vap)
277832176cfdSRui Paulo return;
277932176cfdSRui Paulo /* only associated stations */
278032176cfdSRui Paulo if (ni->ni_associd == 0)
278132176cfdSRui Paulo return;
278232176cfdSRui Paulo rssi = vap->iv_ic->ic_node_getrssi(ni);
278332176cfdSRui Paulo if (rssi != 0) {
278432176cfdSRui Paulo info->rssi_samples++;
278532176cfdSRui Paulo info->rssi_total += rssi;
278632176cfdSRui Paulo }
278732176cfdSRui Paulo }
278832176cfdSRui Paulo
278932176cfdSRui Paulo static void
get_adhoc_rssi(void * arg,struct ieee80211_node * ni)279032176cfdSRui Paulo get_adhoc_rssi(void *arg, struct ieee80211_node *ni)
279132176cfdSRui Paulo {
279232176cfdSRui Paulo struct rssiinfo *info = arg;
279332176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
279432176cfdSRui Paulo int8_t rssi;
279532176cfdSRui Paulo
279632176cfdSRui Paulo if (info->vap != vap)
279732176cfdSRui Paulo return;
279832176cfdSRui Paulo /* only neighbors */
279932176cfdSRui Paulo /* XXX check bssid */
280032176cfdSRui Paulo if ((ni->ni_capinfo & IEEE80211_CAPINFO_IBSS) == 0)
280132176cfdSRui Paulo return;
280232176cfdSRui Paulo rssi = vap->iv_ic->ic_node_getrssi(ni);
280332176cfdSRui Paulo if (rssi != 0) {
280432176cfdSRui Paulo info->rssi_samples++;
280532176cfdSRui Paulo info->rssi_total += rssi;
280632176cfdSRui Paulo }
280732176cfdSRui Paulo }
280832176cfdSRui Paulo
280932176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
281032176cfdSRui Paulo static void
get_mesh_rssi(void * arg,struct ieee80211_node * ni)281132176cfdSRui Paulo get_mesh_rssi(void *arg, struct ieee80211_node *ni)
281232176cfdSRui Paulo {
281332176cfdSRui Paulo struct rssiinfo *info = arg;
281432176cfdSRui Paulo struct ieee80211vap *vap = ni->ni_vap;
281532176cfdSRui Paulo int8_t rssi;
281632176cfdSRui Paulo
281732176cfdSRui Paulo if (info->vap != vap)
281832176cfdSRui Paulo return;
281932176cfdSRui Paulo /* only neighbors that peered successfully */
282032176cfdSRui Paulo if (ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED)
282132176cfdSRui Paulo return;
282232176cfdSRui Paulo rssi = vap->iv_ic->ic_node_getrssi(ni);
282332176cfdSRui Paulo if (rssi != 0) {
282432176cfdSRui Paulo info->rssi_samples++;
282532176cfdSRui Paulo info->rssi_total += rssi;
282632176cfdSRui Paulo }
282732176cfdSRui Paulo }
282832176cfdSRui Paulo #endif /* IEEE80211_SUPPORT_MESH */
282932176cfdSRui Paulo
283032176cfdSRui Paulo int8_t
ieee80211_getrssi(struct ieee80211vap * vap)283132176cfdSRui Paulo ieee80211_getrssi(struct ieee80211vap *vap)
2832841ab66cSSepherosa Ziehau {
2833841ab66cSSepherosa Ziehau #define NZ(x) ((x) == 0 ? 1 : (x))
283432176cfdSRui Paulo struct ieee80211com *ic = vap->iv_ic;
283532176cfdSRui Paulo struct rssiinfo info;
2836841ab66cSSepherosa Ziehau
283732176cfdSRui Paulo info.rssi_total = 0;
283832176cfdSRui Paulo info.rssi_samples = 0;
283932176cfdSRui Paulo info.vap = vap;
284032176cfdSRui Paulo switch (vap->iv_opmode) {
2841841ab66cSSepherosa Ziehau case IEEE80211_M_IBSS: /* average of all ibss neighbors */
2842841ab66cSSepherosa Ziehau case IEEE80211_M_AHDEMO: /* average of all neighbors */
284332176cfdSRui Paulo ieee80211_iterate_nodes(&ic->ic_sta, get_adhoc_rssi, &info);
2844841ab66cSSepherosa Ziehau break;
2845841ab66cSSepherosa Ziehau case IEEE80211_M_HOSTAP: /* average of all associated stations */
284632176cfdSRui Paulo ieee80211_iterate_nodes(&ic->ic_sta, get_hostap_rssi, &info);
2847841ab66cSSepherosa Ziehau break;
284832176cfdSRui Paulo #ifdef IEEE80211_SUPPORT_MESH
284932176cfdSRui Paulo case IEEE80211_M_MBSS: /* average of all mesh neighbors */
285032176cfdSRui Paulo ieee80211_iterate_nodes(&ic->ic_sta, get_mesh_rssi, &info);
285132176cfdSRui Paulo break;
285232176cfdSRui Paulo #endif
2853841ab66cSSepherosa Ziehau case IEEE80211_M_MONITOR: /* XXX */
2854841ab66cSSepherosa Ziehau case IEEE80211_M_STA: /* use stats from associated ap */
2855841ab66cSSepherosa Ziehau default:
285632176cfdSRui Paulo if (vap->iv_bss != NULL)
285732176cfdSRui Paulo info.rssi_total = ic->ic_node_getrssi(vap->iv_bss);
285832176cfdSRui Paulo info.rssi_samples = 1;
2859841ab66cSSepherosa Ziehau break;
2860841ab66cSSepherosa Ziehau }
286132176cfdSRui Paulo return info.rssi_total / NZ(info.rssi_samples);
2862841ab66cSSepherosa Ziehau #undef NZ
2863841ab66cSSepherosa Ziehau }
2864841ab66cSSepherosa Ziehau
2865841ab66cSSepherosa Ziehau void
ieee80211_getsignal(struct ieee80211vap * vap,int8_t * rssi,int8_t * noise)286632176cfdSRui Paulo ieee80211_getsignal(struct ieee80211vap *vap, int8_t *rssi, int8_t *noise)
2867841ab66cSSepherosa Ziehau {
2868841ab66cSSepherosa Ziehau
286932176cfdSRui Paulo if (vap->iv_bss == NULL) /* NB: shouldn't happen */
287032176cfdSRui Paulo return;
287132176cfdSRui Paulo vap->iv_ic->ic_node_getsignal(vap->iv_bss, rssi, noise);
287232176cfdSRui Paulo /* for non-station mode return avg'd rssi accounting */
287332176cfdSRui Paulo if (vap->iv_opmode != IEEE80211_M_STA)
287432176cfdSRui Paulo *rssi = ieee80211_getrssi(vap);
2875f39a365aSSepherosa Ziehau }
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