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Code Issues
fd49112a0d
openwrt/package/madwifi/patches/010-refcount_merge.patch

2209 lines
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diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c
--- madwifi.old/ath/if_ath.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/ath/if_ath.c 2007-05-21 08:10:46.864754176 +0200
@@ -158,8 +158,7 @@
static int ath_desc_alloc(struct ath_softc *);
static void ath_desc_free(struct ath_softc *);
static void ath_desc_swap(struct ath_desc *);
-static struct ieee80211_node *ath_node_alloc(struct ieee80211_node_table *,
- struct ieee80211vap *);
+static struct ieee80211_node *ath_node_alloc(struct ieee80211vap *);
static void ath_node_cleanup(struct ieee80211_node *);
static void ath_node_free(struct ieee80211_node *);
static u_int8_t ath_node_getrssi(const struct ieee80211_node *);
@@ -2385,7 +2384,7 @@
if (ath_tx_start(sc->sc_dev, ni, bf_ff, bf_ff->bf_skb, 0) == 0)
continue;
bad:
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
if (bf_ff->bf_skb != NULL) {
dev_kfree_skb(bf_ff->bf_skb);
bf_ff->bf_skb = NULL;
@@ -2525,8 +2524,10 @@
skb = bf->bf_skb;
ATH_FF_MAGIC_PUT(skb);
+#if 0
/* decrement extra node reference made when an_tx_ffbuf[] was set */
- //ieee80211_free_node(ni); /* XXX where was it set ? */
+ ieee80211_unref_node(&ni); /* XXX where was it set ? */
+#endif
DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
"%s: aggregating fast-frame\n", __func__);
@@ -2585,7 +2586,7 @@
ff_flushbad:
DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
"%s: ff stageq flush failure\n", __func__);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
if (bf_ff->bf_skb) {
dev_kfree_skb(bf_ff->bf_skb);
bf_ff->bf_skb = NULL;
@@ -2707,7 +2708,7 @@
tbf->bf_node = NULL;
if (ni != NULL)
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
STAILQ_INSERT_TAIL(&sc->sc_txbuf, tbf, bf_list);
}
@@ -2789,7 +2790,7 @@
/* fall thru... */
bad:
if (ni != NULL)
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
if (bf != NULL) {
bf->bf_skb = NULL;
bf->bf_node = NULL;
@@ -3178,7 +3179,7 @@
*/
ni = sc->sc_keyixmap[keyix];
if (ni != NULL) {
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
sc->sc_keyixmap[keyix] = NULL;
}
/*
@@ -3189,7 +3190,7 @@
ath_hal_keyreset(ah, keyix + 32); /* RX key */
ni = sc->sc_keyixmap[keyix + 32];
if (ni != NULL) { /* as above... */
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
sc->sc_keyixmap[keyix + 32] = NULL;
}
}
@@ -3202,7 +3203,7 @@
ath_hal_keyreset(ah, keyix + rxkeyoff);
ni = sc->sc_keyixmap[keyix + rxkeyoff];
if (ni != NULL) { /* as above... */
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
sc->sc_keyixmap[keyix + rxkeyoff] = NULL;
}
}
@@ -3764,10 +3765,8 @@
dev_kfree_skb(bf->bf_skb);
bf->bf_skb = NULL;
}
- if (bf->bf_node != NULL) {
- ieee80211_free_node(bf->bf_node);
- bf->bf_node = NULL;
- }
+ if (bf->bf_node != NULL)
+ ieee80211_unref_node(&bf->bf_node);
/*
* NB: the beacon data buffer must be 32-bit aligned;
@@ -3808,7 +3807,7 @@
DPRINTF(sc, ATH_DEBUG_BEACON,
"%s: %s beacons, bslot %d intval %u tsfadjust(Kus) %llu\n",
__func__, sc->sc_stagbeacons ? "stagger" : "burst",
- avp->av_bslot, ni->ni_intval, (unsigned long long) tuadjust);
+ avp->av_bslot, ni->ni_intval, (long long) tuadjust);
wh = (struct ieee80211_frame *) skb->data;
memcpy(&wh[1], &tsfadjust, sizeof(tsfadjust));
@@ -4128,7 +4127,7 @@
vap = sc->sc_bslot[(slot + 1) % ATH_BCBUF];
DPRINTF(sc, ATH_DEBUG_BEACON_PROC,
"%s: slot %d [tsf %llu tsftu %u intval %u] vap %p\n",
- __func__, slot, (unsigned long long) tsf, tsftu, ic->ic_lintval, vap);
+ __func__, slot, (long long) tsf, tsftu, ic->ic_lintval, vap);
bfaddr = 0;
if (vap != NULL) {
bf = ath_beacon_generate(sc, vap, needmark);
@@ -4309,10 +4308,8 @@
dev_kfree_skb(bf->bf_skb);
bf->bf_skb = NULL;
}
- if (bf->bf_node != NULL) {
- ieee80211_free_node(bf->bf_node);
- bf->bf_node = NULL;
- }
+ if (bf->bf_node != NULL)
+ ieee80211_unref_node(&bf->bf_node);
STAILQ_INSERT_TAIL(&sc->sc_bbuf, bf, bf_list);
}
@@ -4331,10 +4328,8 @@
dev_kfree_skb(bf->bf_skb);
bf->bf_skb = NULL;
}
- if (bf->bf_node != NULL) {
- ieee80211_free_node(bf->bf_node);
- bf->bf_node = NULL;
- }
+ if (bf->bf_node != NULL)
+ ieee80211_unref_node(&bf->bf_node);
}
}
@@ -4620,7 +4615,7 @@
/*
* Reclaim node reference.
*/
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
}
}
@@ -4679,37 +4674,39 @@
}
static struct ieee80211_node *
-ath_node_alloc(struct ieee80211_node_table *nt,struct ieee80211vap *vap)
+ath_node_alloc(struct ieee80211vap *vap)
{
- struct ath_softc *sc = nt->nt_ic->ic_dev->priv;
+ struct ath_softc *sc = vap->iv_ic->ic_dev->priv;
const size_t space = sizeof(struct ath_node) + sc->sc_rc->arc_space;
struct ath_node *an;
an = kmalloc(space, GFP_ATOMIC);
- if (an == NULL)
- return NULL;
- memset(an, 0, space);
- an->an_decomp_index = INVALID_DECOMP_INDEX;
- an->an_avgrssi = ATH_RSSI_DUMMY_MARKER;
- an->an_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
- an->an_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
- an->an_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
- /*
- * ath_rate_node_init needs a VAP pointer in node
- * to decide which mgt rate to use
- */
- an->an_node.ni_vap = vap;
- sc->sc_rc->ops->node_init(sc, an);
-
- /* U-APSD init */
- STAILQ_INIT(&an->an_uapsd_q);
- an->an_uapsd_qdepth = 0;
- STAILQ_INIT(&an->an_uapsd_overflowq);
- an->an_uapsd_overflowqdepth = 0;
- ATH_NODE_UAPSD_LOCK_INIT(an);
+ if (an != NULL) {
+ memset(an, 0, space);
+ an->an_decomp_index = INVALID_DECOMP_INDEX;
+ an->an_avgrssi = ATH_RSSI_DUMMY_MARKER;
+ an->an_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
+ an->an_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
+ an->an_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
+ /*
+ * ath_rate_node_init needs a vap pointer in node
+ * to decide which mgt rate to use
+ */
+ an->an_node.ni_vap = vap;
+ sc->sc_rc->ops->node_init(sc, an);
- DPRINTF(sc, ATH_DEBUG_NODE, "%s: an %p\n", __func__, an);
- return &an->an_node;
+ /* U-APSD init */
+ STAILQ_INIT(&an->an_uapsd_q);
+ an->an_uapsd_qdepth = 0;
+ STAILQ_INIT(&an->an_uapsd_overflowq);
+ an->an_uapsd_overflowqdepth = 0;
+ ATH_NODE_UAPSD_LOCK_INIT(an);
+
+ DPRINTF(sc, ATH_DEBUG_NODE, "%s: an %p\n", __func__, an);
+ return &an->an_node;
+ } else {
+ return NULL;
+ }
}
static void
@@ -4719,6 +4716,7 @@
struct ath_softc *sc = ni->ni_ic->ic_dev->priv;
struct ath_node *an = ATH_NODE(ni);
struct ath_buf *bf;
+ struct ieee80211_cb *cb = NULL;
/*
* U-APSD cleanup
@@ -4733,15 +4731,18 @@
while (an->an_uapsd_qdepth) {
bf = STAILQ_FIRST(&an->an_uapsd_q);
STAILQ_REMOVE_HEAD(&an->an_uapsd_q, bf_list);
- bf->bf_desc->ds_link = 0;
+ cb = (struct ieee80211_cb *) bf->bf_skb->cb;
+ ieee80211_unref_node(&cb->ni);
dev_kfree_skb_any(bf->bf_skb);
+
+ bf->bf_desc->ds_link = 0;
bf->bf_skb = NULL;
bf->bf_node = NULL;
+
ATH_TXBUF_LOCK_IRQ(sc);
STAILQ_INSERT_TAIL(&sc->sc_txbuf, bf, bf_list);
ATH_TXBUF_UNLOCK_IRQ(sc);
- ieee80211_free_node(ni);
an->an_uapsd_qdepth--;
}
@@ -4749,19 +4750,25 @@
while (an->an_uapsd_overflowqdepth) {
bf = STAILQ_FIRST(&an->an_uapsd_overflowq);
STAILQ_REMOVE_HEAD(&an->an_uapsd_overflowq, bf_list);
- bf->bf_desc->ds_link = 0;
+ cb = (struct ieee80211_cb *) bf->bf_skb->cb;
+ ieee80211_unref_node(&cb->ni);
dev_kfree_skb_any(bf->bf_skb);
+
bf->bf_skb = NULL;
bf->bf_node = NULL;
+ bf->bf_desc->ds_link = 0;
+
ATH_TXBUF_LOCK_IRQ(sc);
STAILQ_INSERT_TAIL(&sc->sc_txbuf, bf, bf_list);
ATH_TXBUF_UNLOCK_IRQ(sc);
- ieee80211_free_node(ni);
an->an_uapsd_overflowqdepth--;
}
+ /* Clean up node-specific rate things - this currently appears to always be a no-op */
+ sc->sc_rc->ops->node_cleanup(sc, ATH_NODE(ni));
+
ATH_NODE_UAPSD_LOCK_IRQ(an);
sc->sc_node_cleanup(ni);
ATH_NODE_UAPSD_UNLOCK_IRQ(an);
@@ -4772,7 +4779,6 @@
{
struct ath_softc *sc = ni->ni_ic->ic_dev->priv;
- sc->sc_rc->ops->node_cleanup(sc, ATH_NODE(ni));
sc->sc_node_free(ni);
#ifdef ATH_SUPERG_XR
ath_grppoll_period_update(sc);
@@ -5660,7 +5666,7 @@
an = ATH_NODE(ieee80211_ref_node(ni));
ATH_RSSI_LPF(an->an_avgrssi, rs->rs_rssi);
type = ieee80211_input(ni, skb, rs->rs_rssi, rs->rs_tstamp);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
} else {
/*
* No key index or no entry, do a lookup and
@@ -5682,7 +5688,7 @@
if (keyix != IEEE80211_KEYIX_NONE &&
sc->sc_keyixmap[keyix] == NULL)
sc->sc_keyixmap[keyix] = ieee80211_ref_node(ni);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
} else
type = ieee80211_input_all(ic, skb,
rs->rs_rssi, rs->rs_tstamp);
@@ -6478,8 +6484,7 @@
STAILQ_REMOVE_HEAD(&an->an_uapsd_q, bf_list);
dev_kfree_skb(lastbuf->bf_skb);
lastbuf->bf_skb = NULL;
- ieee80211_free_node(lastbuf->bf_node);
- lastbuf->bf_node = NULL;
+ ieee80211_unref_node(&lastbuf->bf_node);
ATH_TXBUF_LOCK_IRQ(sc);
STAILQ_INSERT_TAIL(&sc->sc_txbuf, lastbuf, bf_list);
ATH_TXBUF_UNLOCK_IRQ(sc);
@@ -7229,7 +7234,7 @@
* this is a DEAUTH message that was sent and the
* node was timed out due to inactivity.
*/
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
}
bus_unmap_single(sc->sc_bdev, bf->bf_skbaddr,
@@ -7474,7 +7479,7 @@
}
#endif /* ATH_SUPERG_FF */
if (bf->bf_node)
- ieee80211_free_node(bf->bf_node);
+ ieee80211_unref_node(&bf->bf_node);
bf->bf_skb = NULL;
bf->bf_node = NULL;
diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_input.c
--- madwifi.old/net80211/ieee80211_input.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_input.c 2007-05-21 08:10:46.865754024 +0200
@@ -489,7 +489,7 @@
nt = &ic->ic_sta;
ni_wds = ieee80211_find_wds_node(nt, wh->i_addr3);
if (ni_wds) {
- ieee80211_free_node(ni_wds); /* Decr ref count */
+ ieee80211_unref_node(&ni_wds); /* Decr ref count */
IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
wh, NULL, "%s",
"multicast echo originated from node behind me");
@@ -543,10 +543,12 @@
* the node table for the packet source address (addr4).
* If not, add one.
*/
+ /* XXX: Useless node mgmt API; make better */
if (dir == IEEE80211_FC1_DIR_DSTODS) {
struct ieee80211_node_table *nt;
struct ieee80211_frame_addr4 *wh4;
struct ieee80211_node *ni_wds;
+
if (!(vap->iv_flags_ext & IEEE80211_FEXT_WDS)) {
IEEE80211_DISCARD(vap, IEEE80211_MSG_INPUT,
wh, "data", "%s", "4 addr not allowed");
@@ -569,7 +571,7 @@
if (ni_wds == NULL)
ieee80211_add_wds_addr(nt, ni, wh4->i_addr4, 0);
else
- ieee80211_free_node(ni_wds); /* Decr ref count */
+ ieee80211_unref_node(&ni_wds); /* Decr. ref count */
}
/*
@@ -936,7 +938,7 @@
}
ni = ieee80211_ref_node(vap->iv_bss);
type = ieee80211_input(ni, skb1, rssi, rstamp);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
}
if (skb != NULL) /* no vaps, reclaim skb */
dev_kfree_skb(skb);
@@ -986,22 +988,14 @@
}
/*
- * Use this lock to make sure ni->ni_rxfrag is
- * not freed by the timer process while we use it.
- * XXX bogus
- */
- IEEE80211_NODE_LOCK_IRQ(ni->ni_table);
-
- /*
* Update the time stamp. As a side effect, it
* also makes sure that the timer will not change
* ni->ni_rxfrag for at least 1 second, or in
* other words, for the remaining of this function.
+ * XXX HUGE HORRIFIC HACK
*/
ni->ni_rxfragstamp = jiffies;
- IEEE80211_NODE_UNLOCK_IRQ(ni->ni_table);
-
/*
* Validate that fragment is in order and
* related to the previous ones.
@@ -1130,7 +1124,7 @@
skb = NULL;
}
/* XXX statistic? */
- ieee80211_free_node(ni1);
+ ieee80211_unref_node(&ni1);
}
}
if (skb1 != NULL) {
@@ -1265,6 +1259,7 @@
int rssi, u_int32_t rstamp, u_int16_t seq, u_int16_t status)
{
struct ieee80211vap *vap = ni->ni_vap;
+ unsigned int tmpnode = 0;
if (ni->ni_authmode == IEEE80211_AUTH_SHARED) {
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_AUTH,
@@ -1272,22 +1267,21 @@
"bad sta auth mode %u", ni->ni_authmode);
vap->iv_stats.is_rx_bad_auth++; /* XXX maybe a unique error? */
if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
- /* XXX hack to workaround calling convention */
-
- /* XXX To send the frame to the requesting STA, we have to
- * create a node for the station that we're going to reject.
- * The node will be freed automatically */
if (ni == vap->iv_bss) {
- ni = ieee80211_dup_bss(vap, wh->i_addr2);
+ ni = ieee80211_dup_bss(vap, wh->i_addr2, 0);
if (ni == NULL)
return;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
"%s: %p<%s> refcnt %d\n", __func__, ni, ether_sprintf(ni->ni_macaddr),
ieee80211_node_refcnt(ni));
+ tmpnode = 1;
}
IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_AUTH,
(seq + 1) | (IEEE80211_STATUS_ALG << 16));
+
+ if (tmpnode)
+ ieee80211_unref_node(&ni);
return;
}
}
@@ -1315,23 +1309,16 @@
}
/* always accept open authentication requests */
if (ni == vap->iv_bss) {
- ni = ieee80211_dup_bss(vap, wh->i_addr2);
+ ni = ieee80211_dup_bss(vap, wh->i_addr2, 0);
if (ni == NULL)
return;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
"%s: %p<%s> refcnt %d\n", __func__, ni, ether_sprintf(ni->ni_macaddr),
ieee80211_node_refcnt(ni));
-
- } else if ((ni->ni_flags & IEEE80211_NODE_AREF) == 0)
- (void) ieee80211_ref_node(ni);
- /*
- * Mark the node as referenced to reflect that it's
- * reference count has been bumped to ensure it remains
- * after the transaction completes.
- */
- ni->ni_flags |= IEEE80211_NODE_AREF;
-
+ tmpnode = 1;
+ }
+
IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_AUTH, seq + 1);
IEEE80211_NOTE(vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH,
ni, "station authenticated (%s)", "open");
@@ -1341,6 +1328,8 @@
*/
if (ni->ni_authmode != IEEE80211_AUTH_8021X)
ieee80211_node_authorize(ni);
+ if (tmpnode)
+ ieee80211_unref_node(&ni);
break;
case IEEE80211_M_STA:
@@ -1379,7 +1368,7 @@
int istmp;
if (ni == vap->iv_bss) {
- ni = ieee80211_tmp_node(vap, mac);
+ ni = ieee80211_dup_bss(vap, mac, 1);
if (ni == NULL) {
/* XXX msg */
return;
@@ -1389,7 +1378,7 @@
istmp = 0;
IEEE80211_SEND_MGMT(ni, subtype, arg);
if (istmp)
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
}
static int
@@ -1505,7 +1494,7 @@
switch (seq) {
case IEEE80211_AUTH_SHARED_REQUEST:
if (ni == vap->iv_bss) {
- ni = ieee80211_dup_bss(vap, wh->i_addr2);
+ ni = ieee80211_dup_bss(vap, wh->i_addr2, 0);
if (ni == NULL) {
/* NB: no way to return an error */
return;
@@ -1516,17 +1505,8 @@
ieee80211_node_refcnt(ni));
allocbs = 1;
- } else {
- if ((ni->ni_flags & IEEE80211_NODE_AREF) == 0)
- (void) ieee80211_ref_node(ni);
- allocbs = 0;
}
- /*
- * Mark the node as referenced to reflect that it's
- * reference count has been bumped to ensure it remains
- * after the transaction completes.
- */
- ni->ni_flags |= IEEE80211_NODE_AREF;
+
ni->ni_rssi = rssi;
ni->ni_rstamp = rstamp;
ni->ni_last_rx = jiffies;
@@ -1620,14 +1600,13 @@
}
return;
bad:
- /*
- * Send an error response; but only when operating as an AP.
- */
+ /* Send an error response; but only when operating as an AP. */
if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
/* XXX hack to workaround calling convention */
ieee80211_send_error(ni, wh->i_addr2,
IEEE80211_FC0_SUBTYPE_AUTH,
(seq + 1) | (estatus<<16));
+ ieee80211_node_leave(ni);
} else if (vap->iv_opmode == IEEE80211_M_STA) {
/*
* Kick the state machine. This short-circuits
@@ -2600,7 +2579,7 @@
u_int8_t *frm, *efrm;
u_int8_t *ssid, *rates, *xrates, *wpa, *rsn, *wme, *ath;
u_int8_t rate;
- int reassoc, resp, allocbs;
+ int reassoc, resp, allocbs = 0;
u_int8_t qosinfo;
wh = (struct ieee80211_frame *) skb->data;
@@ -3008,13 +2987,13 @@
ni = ieee80211_fakeup_adhoc_node(vap,
wh->i_addr2);
} else {
- ni = ieee80211_tmp_node(vap, wh->i_addr2);
+ ni = ieee80211_dup_bss(vap, wh->i_addr2, 1);
}
if (ni == NULL)
return;
allocbs = 1;
- } else
- allocbs = 0;
+ }
+
IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2,
"%s", "recv probe req");
ni->ni_rssi = rssi;
@@ -3037,7 +3016,7 @@
* Temporary node created just to send a
* response, reclaim immediately
*/
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
} else if (ath != NULL)
ieee80211_saveath(ni, ath);
break;
@@ -3067,6 +3046,9 @@
ni = vap->iv_xrvap->iv_bss;
else {
ieee80211_node_leave(ni);
+ /* This would be a stupid place to add a node to the table
+ * XR stuff needs work anyway
+ */
ieee80211_node_reset(ni, vap->iv_xrvap);
}
vap = vap->iv_xrvap;
diff -ur madwifi.old/net80211/ieee80211_linux.c madwifi.dev/net80211/ieee80211_linux.c
--- madwifi.old/net80211/ieee80211_linux.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_linux.c 2007-05-21 08:10:46.866753872 +0200
@@ -358,7 +358,7 @@
struct ieee80211_node *ni;
struct ieee80211_node_table *nt = (struct ieee80211_node_table *) &vap->iv_ic->ic_sta;
- //IEEE80211_NODE_LOCK(nt);
+ /* IEEE80211_NODE_LOCK(nt); */
TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
/* Assume each node needs 500 bytes */
if (buf + space < p + 500)
@@ -376,7 +376,7 @@
}
}
- //IEEE80211_NODE_UNLOCK(nt);
+ /* IEEE80211_NODE_UNLOCK(nt); */
return (p - buf);
}
diff -ur madwifi.old/net80211/ieee80211_linux.h madwifi.dev/net80211/ieee80211_linux.h
--- madwifi.old/net80211/ieee80211_linux.h 2007-05-04 15:45:58.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_linux.h 2007-05-21 08:10:46.867753720 +0200
@@ -63,6 +63,12 @@
#define IEEE80211_RESCHEDULE schedule
+/* Locking */
+/* NB: beware, spin_is_locked() is not usefully defined for !(DEBUG || SMP)
+ * because spinlocks do not exist in this configuration. Instead IRQs
+ * or pre-emption are simply disabled, as this is all that is needed.
+ */
+
/*
* Beacon handler locking definitions.
* Beacon locking
@@ -85,14 +91,14 @@
#define IEEE80211_LOCK(_ic) spin_lock(&(_ic)->ic_comlock)
#define IEEE80211_UNLOCK(_ic) spin_unlock(&(_ic)->ic_comlock)
-/* NB: beware, spin_is_locked() is unusable for !SMP */
-#if defined(CONFIG_SMP)
+#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
#define IEEE80211_LOCK_ASSERT(_ic) \
KASSERT(spin_is_locked(&(_ic)->ic_comlock),("ieee80211com not locked!"))
#else
#define IEEE80211_LOCK_ASSERT(_ic)
#endif
+
#define IEEE80211_VAPS_LOCK_INIT(_ic, _name) \
spin_lock_init(&(_ic)->ic_vapslock)
#define IEEE80211_VAPS_LOCK_DESTROY(_ic)
@@ -108,11 +114,10 @@
} while (0)
#define IEEE80211_VAPS_UNLOCK_IRQ_EARLY(_ic) spin_unlock_irqrestore(&(_ic)->ic_vapslock, _vaps_lockflags)
-
-/* NB: beware, spin_is_locked() is unusable for !SMP */
-#if defined(CONFIG_SMP)
+#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
#define IEEE80211_VAPS_LOCK_ASSERT(_ic) \
- KASSERT(spin_is_locked(&(_ic)->ic_vapslock),("ieee80211com_vaps not locked!"))
+ KASSERT(spin_is_locked(&(_ic)->ic_vapslock), \
+ ("ieee80211com_vaps not locked!"))
#else
#define IEEE80211_VAPS_LOCK_ASSERT(_ic)
#endif
@@ -121,29 +126,63 @@
/*
* Node locking definitions.
*/
+#if 0
+
typedef spinlock_t ieee80211_node_lock_t;
-#define IEEE80211_NODE_LOCK_INIT(_nt, _name) spin_lock_init(&(_nt)->nt_nodelock)
-#define IEEE80211_NODE_LOCK_DESTROY(_nt)
-#define IEEE80211_NODE_LOCK(_nt) spin_lock(&(_nt)->nt_nodelock)
-#define IEEE80211_NODE_UNLOCK(_nt) spin_unlock(&(_nt)->nt_nodelock)
-#define IEEE80211_NODE_LOCK_BH(_nt) spin_lock_bh(&(_nt)->nt_nodelock)
-#define IEEE80211_NODE_UNLOCK_BH(_nt) spin_unlock_bh(&(_nt)->nt_nodelock)
-#define IEEE80211_NODE_LOCK_IRQ(_nt) do { \
+#define IEEE80211_NODE_LOCK_INIT(_ni, _name) spin_lock_init(&(_ni)->ni_nodelock)
+#define IEEE80211_NODE_LOCK_DESTROY(_ni)
+#if 0 /* We should always be contesting in the same contexts */
+#define IEEE80211_NODE_LOCK(_ni) spin_lock(&(_ni)->ni_nodelock)
+#define IEEE80211_NODE_UNLOCK(_ni) spin_unlock(&(_ni)->ni_nodelock)
+#define IEEE80211_NODE_LOCK_BH(_ni) spin_lock_bh(&(_ni)->ni_nodelock)
+#define IEEE80211_NODE_UNLOCK_BH(_ni) spin_unlock_bh(&(_ni)->ni_nodelock)
+#endif
+#define IEEE80211_NODE_LOCK_IRQ(_ni) do { \
+ unsigned long __node_lockflags; \
+ spin_lock_irqsave(&(_ni)->ni_nodelock, __node_lockflags);
+#define IEEE80211_NODE_UNLOCK_IRQ(_ni) \
+ spin_unlock_irqrestore(&(_ni)->ni_nodelock, __node_lockflags); \
+} while(0)
+#define IEEE80211_NODE_UNLOCK_IRQ_EARLY(_ni) \
+ spin_unlock_irqrestore(&(_ni)->ni_nodelock, __node_lockflags);
+
+#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
+#define IEEE80211_NODE_LOCK_ASSERT(_nt) \
+ KASSERT(spin_is_locked(&(_ni)->ni_nodelock), \
+ ("802.11 node not locked!"))
+#else
+#define IEEE80211_NODE_LOCK_ASSERT(_ni)
+#endif
+
+#endif /* node lock */
+
+/*
+ * Node table locking definitions.
+ */
+typedef spinlock_t ieee80211_node_table_lock_t;
+#define IEEE80211_NODE_TABLE_LOCK_INIT(_nt, _name) spin_lock_init(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_TABLE_LOCK_DESTROY(_nt)
+#if 0 /* We should always be contesting in the same contexts */
+#define IEEE80211_NODE_TABLE_LOCK(_nt) spin_lock(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_TABLE_UNLOCK(_nt) spin_unlock(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_TABLE_LOCK_BH(_nt) spin_lock_bh(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_TABLE_UNLOCK_BH(_nt) spin_unlock_bh(&(_nt)->nt_nodelock)
+#endif
+#define IEEE80211_NODE_TABLE_LOCK_IRQ(_nt) do { \
unsigned long __node_lockflags; \
spin_lock_irqsave(&(_nt)->nt_nodelock, __node_lockflags);
-#define IEEE80211_NODE_UNLOCK_IRQ(_nt) \
+#define IEEE80211_NODE_TABLE_UNLOCK_IRQ(_nt) \
spin_unlock_irqrestore(&(_nt)->nt_nodelock, __node_lockflags); \
} while(0)
-#define IEEE80211_NODE_UNLOCK_IRQ_EARLY(_nt) \
+#define IEEE80211_NODE_TABLE_UNLOCK_IRQ_EARLY(_nt) \
spin_unlock_irqrestore(&(_nt)->nt_nodelock, __node_lockflags);
-/* NB: beware, *_is_locked() are bogusly defined for UP+!PREEMPT */
-#if (defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)) && defined(spinlock_is_locked)
-#define IEEE80211_NODE_LOCK_ASSERT(_nt) \
- KASSERT(spinlock_is_locked(&(_nt)->nt_nodelock), \
+#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
+#define IEEE80211_NODE_TABLE_LOCK_ASSERT(_nt) \
+ KASSERT(spin_is_locked(&(_nt)->nt_nodelock), \
("802.11 node table not locked!"))
#else
-#define IEEE80211_NODE_LOCK_ASSERT(_nt)
+#define IEEE80211_NODE_TABLE_LOCK_ASSERT(_nt)
#endif
/*
@@ -163,8 +202,7 @@
#define IEEE80211_SCAN_UNLOCK_IRQ_EARLY(_nt) \
spin_unlock_irqrestore(&(_nt)->nt_scanlock, __scan_lockflags);
-/* NB: beware, spin_is_locked() is unusable for !SMP */
-#if defined(CONFIG_SMP)
+#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
#define IEEE80211_SCAN_LOCK_ASSERT(_nt) \
KASSERT(spin_is_locked(&(_nt)->nt_scanlock), ("scangen not locked!"))
#else
@@ -182,8 +220,7 @@
#define ACL_LOCK_BH(_as) spin_lock_bh(&(_as)->as_lock)
#define ACL_UNLOCK_BH(_as) spin_unlock_bh(&(_as)->as_lock)
-/* NB: beware, spin_is_locked() is unusable for !SMP */
-#if defined(CONFIG_SMP)
+#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked)
#define ACL_LOCK_ASSERT(_as) \
KASSERT(spin_is_locked(&(_as)->as_lock), ("ACL not locked!"))
#else
@@ -299,6 +336,7 @@
* is the last reference, otherwise 0
* ieee80211_node_refcnt reference count for printing (only)
*/
+typedef atomic_t ieee80211_node_ref_count_t;
#define ieee80211_node_initref(_ni) atomic_set(&(_ni)->ni_refcnt, 1)
#define ieee80211_node_incref(_ni) atomic_inc(&(_ni)->ni_refcnt)
#define ieee80211_node_decref(_ni) atomic_dec(&(_ni)->ni_refcnt)
@@ -379,8 +417,8 @@
/* msecs_to_jiffies appeared in 2.6.7 and 2.4.29 */
#include <linux/delay.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) && \
- LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)) || \
- LINUX_VERSION_CODE < KERNEL_VERSION(2,4,29)
+ LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)) || \
+ LINUX_VERSION_CODE < KERNEL_VERSION(2,4,29)
/* The following definitions and inline functions are
* copied from the kernel src, include/linux/jiffies.h */
diff -ur madwifi.old/net80211/ieee80211_node.c madwifi.dev/net80211/ieee80211_node.c
--- madwifi.old/net80211/ieee80211_node.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_node.c 2007-05-21 08:10:46.868753568 +0200
@@ -65,16 +65,17 @@
#define IEEE80211_AID_ISSET(_vap, _b) \
((_vap)->iv_aid_bitmap[IEEE80211_AID(_b) / 32] & (1 << (IEEE80211_AID(_b) % 32)))
+static struct ieee80211_node *ieee80211_alloc_node(struct ieee80211vap *, const u_int8_t *);
+
static int ieee80211_sta_join1(struct ieee80211_node *);
-static struct ieee80211_node *node_alloc(struct ieee80211_node_table *,
- struct ieee80211vap *);
+static struct ieee80211_node *node_alloc(struct ieee80211vap *);
static void node_cleanup(struct ieee80211_node *);
static void node_free(struct ieee80211_node *);
static u_int8_t node_getrssi(const struct ieee80211_node *);
-static void _ieee80211_free_node(struct ieee80211_node *);
-static void node_reclaim(struct ieee80211_node_table *, struct ieee80211_node*);
+static void _node_table_leave(struct ieee80211_node_table *, struct ieee80211_node *);
+static void _node_table_join(struct ieee80211_node_table *, struct ieee80211_node *);
static void ieee80211_node_timeout(unsigned long);
@@ -194,8 +195,7 @@
ieee80211_node_table_reset(&ic->ic_sta, vap);
if (vap->iv_bss != NULL) {
- ieee80211_free_node(vap->iv_bss);
- vap->iv_bss = NULL;
+ ieee80211_unref_node(&vap->iv_bss);
}
if (vap->iv_aid_bitmap != NULL) {
FREE(vap->iv_aid_bitmap, M_DEVBUF);
@@ -250,6 +250,7 @@
nbss->ni_txpower = obss->ni_txpower;
nbss->ni_vlan = obss->ni_vlan;
nbss->ni_rsn = obss->ni_rsn;
+ nbss->ni_rates = obss->ni_rates;
/* XXX statistics? */
}
@@ -263,17 +264,17 @@
"%s: creating ibss on channel %u\n", __func__,
ieee80211_chan2ieee(ic, chan));
- /* Check to see if we already have a node for this mac */
+ /* Check to see if we already have a node for this mac
+ * NB: we gain a node reference here
+ */
ni = ieee80211_find_node(&ic->ic_sta, vap->iv_myaddr);
if (ni == NULL) {
- ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->iv_myaddr);
+ ni = ieee80211_alloc_node_table(vap, vap->iv_myaddr);
if (ni == NULL) {
/* XXX recovery? */
return;
}
}
- else
- ieee80211_free_node(ni);
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, "%s: %p<%s> refcnt %d\n",
__func__, vap->iv_bss, ether_sprintf(vap->iv_bss->ni_macaddr),
@@ -339,7 +340,7 @@
else if (IEEE80211_IS_CHAN_QUARTER(chan))
ni->ni_rates = ic->ic_sup_quarter_rates;
- (void) ieee80211_sta_join1(ieee80211_ref_node(ni));
+ (void) ieee80211_sta_join1(PASS_NODE(ni));
}
EXPORT_SYMBOL(ieee80211_create_ibss);
@@ -363,9 +364,10 @@
/* XXX multi-bss wrong */
ieee80211_reset_erp(ic, ic->ic_curmode);
- ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->iv_myaddr);
+ ni = ieee80211_alloc_node_table(vap, vap->iv_myaddr);
KASSERT(ni != NULL, ("unable to setup inital BSS node"));
obss = vap->iv_bss;
+ /* New reference for caller */
vap->iv_bss = ieee80211_ref_node(ni);
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE, "%s: new bss %p<%s> refcnt %d\n",
@@ -375,7 +377,8 @@
if (obss != NULL) {
copy_bss(ni, obss);
ni->ni_intval = ic->ic_lintval;
- ieee80211_free_node(obss);
+ /* Caller's reference */
+ ieee80211_unref_node(&obss);
}
}
@@ -581,7 +584,7 @@
vap->iv_state == IEEE80211_S_RUN && ssid_equal(obss, selbs));
vap->iv_bss = selbs;
if (obss != NULL)
- ieee80211_free_node(obss);
+ ieee80211_unref_node(&obss);
ic->ic_bsschan = selbs->ni_chan;
ic->ic_curchan = ic->ic_bsschan;
ic->ic_curmode = ieee80211_chan2mode(ic->ic_curchan);
@@ -638,21 +641,20 @@
ni = ieee80211_find_node(&ic->ic_sta, se->se_macaddr);
if (ni == NULL) {
- ni = ieee80211_alloc_node(&ic->ic_sta, vap, se->se_macaddr);
+ ni = ieee80211_alloc_node_table(vap, se->se_macaddr);
if (ni == NULL) {
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
"%s: Unable to allocate node for BSS: %s\n", __func__,
ether_sprintf(ni->ni_macaddr));
return 0;
}
- } else
- ieee80211_free_node(ni);
+ }
/*
* Expand scan state into node's format.
* XXX may not need all this stuff
*/
- ni->ni_authmode = vap->iv_bss->ni_authmode; /* inherit authmode from iv_bss */
+ ni->ni_authmode = vap->iv_bss->ni_authmode; /* inherit authmode from iv_bss */
/* inherit the WPA setup as well (structure copy!) */
ni->ni_rsn = vap->iv_bss->ni_rsn;
IEEE80211_ADDR_COPY(ni->ni_bssid, se->se_bssid);
@@ -686,9 +688,9 @@
IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
"%s: %p<%s> refcnt %d\n", __func__, ni, ether_sprintf(ni->ni_macaddr),
- ieee80211_node_refcnt(ni)+1);
+ ieee80211_node_refcnt(ni));
- return ieee80211_sta_join1(ieee80211_ref_node(ni));
+ return ieee80211_sta_join1(PASS_NODE(ni));
}
EXPORT_SYMBOL(ieee80211_sta_join);
@@ -700,15 +702,13 @@
ieee80211_sta_leave(struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
- struct ieee80211com *ic = vap->iv_ic;
/* WDS/Repeater: Stop software beacon timer for STA */
if (vap->iv_opmode == IEEE80211_M_STA &&
vap->iv_flags_ext & IEEE80211_FEXT_SWBMISS) {
del_timer(&vap->iv_swbmiss);
}
-
- ic->ic_node_cleanup(ni);
+
ieee80211_notify_node_leave(ni);
}
@@ -717,11 +717,11 @@
*/
static void
-ieee80211_node_table_init(struct ieee80211com *ic,
- struct ieee80211_node_table *nt, const char *name, int inact)
+ieee80211_node_table_init(struct ieee80211com *ic, struct ieee80211_node_table *nt,
+ const char *name, int inact)
{
nt->nt_ic = ic;
- IEEE80211_NODE_LOCK_INIT(nt, ic->ic_dev->name);
+ IEEE80211_NODE_TABLE_LOCK_INIT(nt, ic->ic_dev->name);
IEEE80211_SCAN_LOCK_INIT(nt, ic->ic_dev->name);
TAILQ_INIT(&nt->nt_node);
nt->nt_name = name;
@@ -733,11 +733,31 @@
mod_timer(&nt->nt_wds_aging_timer, jiffies + HZ * WDS_AGING_TIMER_VAL);
}
+static __inline void _node_table_join(struct ieee80211_node_table *nt, struct ieee80211_node *ni) {
+ IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
+
+ ni->ni_table = nt;
+ TAILQ_INSERT_TAIL(&nt->nt_node, ieee80211_ref_node(ni), ni_list);
+ LIST_INSERT_HEAD(&nt->nt_hash[IEEE80211_NODE_HASH(ni->ni_macaddr)], ni, ni_hash);
+}
+
+static __inline void _node_table_leave(struct ieee80211_node_table *nt, struct ieee80211_node *ni) {
+ struct ieee80211_node *hni;
+ IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
+
+ TAILQ_REMOVE(&nt->nt_node, ni, ni_list);
+ LIST_FOREACH(hni, &nt->nt_hash[IEEE80211_NODE_HASH(ni->ni_macaddr)], ni_hash) {
+ LIST_REMOVE(ni, ni_hash);
+ }
+ ni->ni_table = NULL;
+ _ieee80211_unref_node(ni);
+}
+
/* This is overridden by ath_node_alloc in ath/if_ath.c, and so
- * should never get called
+ * should never get called.
*/
static struct ieee80211_node *
-node_alloc(struct ieee80211_node_table *nt, struct ieee80211vap *vap)
+node_alloc(struct ieee80211vap *vap)
{
struct ieee80211_node *ni;
@@ -776,13 +796,6 @@
IEEE80211_UNLOCK_IRQ(ni->ni_ic);
}
}
- /*
- * Clear AREF flag that marks the authorization refcnt bump
- * has happened. This is probably not needed as the node
- * should always be removed from the table so not found but
- * do it just in case.
- */
- ni->ni_flags &= ~IEEE80211_NODE_AREF;
/*
* Drain power save queue and, if needed, clear TIM.
@@ -791,10 +804,7 @@
vap->iv_set_tim(ni, 0);
ni->ni_associd = 0;
- if (ni->ni_challenge != NULL) {
- FREE(ni->ni_challenge, M_DEVBUF);
- ni->ni_challenge = NULL;
- }
+
/*
* Preserve SSID, WPA, and WME ie's so the bss node is
* reusable during a re-auth/re-assoc state transition.
@@ -819,9 +829,16 @@
static void
node_free(struct ieee80211_node *ni)
{
+#if 0
+ /* We should 'cleanup' and then free'ing should be done automatically on decref */
struct ieee80211com *ic = ni->ni_ic;
ic->ic_node_cleanup(ni);
+#endif
+ KASSERT(ieee80211_node_refcnt(ni) == 0, ("node being free whilst still referenced"));
+
+ if (ni->ni_challenge != NULL)
+ FREE(ni->ni_challenge, M_DEVBUF);
if (ni->ni_wpa_ie != NULL)
FREE(ni->ni_wpa_ie, M_DEVBUF);
if (ni->ni_rsn_ie != NULL)
@@ -831,6 +848,7 @@
if (ni->ni_ath_ie != NULL)
FREE(ni->ni_ath_ie, M_DEVBUF);
IEEE80211_NODE_SAVEQ_DESTROY(ni);
+
FREE(ni, M_80211_NODE);
}
@@ -847,55 +865,70 @@
* This interface is not intended for general use, it is
* used by the routines below to create entries with a
* specific purpose.
+ * Dont assume a BSS?
*/
struct ieee80211_node *
-ieee80211_alloc_node(struct ieee80211_node_table *nt,
- struct ieee80211vap *vap, const u_int8_t *macaddr)
+ieee80211_alloc_node_table(struct ieee80211vap *vap,
+ const u_int8_t *macaddr)
{
- struct ieee80211com *ic = nt->nt_ic;
+ struct ieee80211com *ic = vap->iv_ic;
+ struct ieee80211_node_table *nt = &ic->ic_sta;
struct ieee80211_node *ni;
- int hash;
- ni = ic->ic_node_alloc(nt, vap);
- if (ni == NULL) {
- /* XXX msg */
- vap->iv_stats.is_rx_nodealloc++;
- return NULL;
- }
+ ni = ieee80211_alloc_node(vap, macaddr);
+ if (ni != NULL) {
+ ni->ni_inact = ni->ni_inact_reload = nt->nt_inact_init;
- IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
- "%s: %p<%s> in %s table, refcnt %d\n", __func__, ni,
- ether_sprintf(macaddr), nt->nt_name,
- ieee80211_node_refcnt(ni)+1);
+ WME_UAPSD_NODE_TRIGSEQINIT(ni);
+ IEEE80211_NODE_SAVEQ_INIT(ni, "unknown");
- IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr);
- hash = IEEE80211_NODE_HASH(macaddr);
- ieee80211_node_initref(ni); /* mark referenced */
- ni->ni_chan = IEEE80211_CHAN_ANYC;
- ni->ni_authmode = IEEE80211_AUTH_OPEN;
- ni->ni_txpower = ic->ic_txpowlimit; /* max power */
- ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey, IEEE80211_KEYIX_NONE);
- ni->ni_inact_reload = nt->nt_inact_init;
- ni->ni_inact = ni->ni_inact_reload;
- ni->ni_ath_defkeyindex = IEEE80211_INVAL_DEFKEY;
- ni->ni_rxkeyoff = 0;
- IEEE80211_NODE_SAVEQ_INIT(ni, "unknown");
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
+ _node_table_join(nt, ni);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
+ }
- IEEE80211_NODE_LOCK_IRQ(nt);
- ni->ni_vap = vap;
- ni->ni_ic = ic;
- ni->ni_table = nt;
- TAILQ_INSERT_TAIL(&nt->nt_node, ni, ni_list);
- LIST_INSERT_HEAD(&nt->nt_hash[hash], ni, ni_hash);
- ni->ni_rxfrag = NULL;
- ni->ni_challenge = NULL;
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ return ni;
+}
+EXPORT_SYMBOL(ieee80211_alloc_node_table);
+
+/* Allocate a node structure and initialise specialised structures
+ * This function does not add the node to the node table, thus this
+ * node will not be found using ieee80211_find_*node.
+ * This is useful when sending one off errors or request denials.
+ */
+static struct ieee80211_node *
+ieee80211_alloc_node(struct ieee80211vap *vap, const u_int8_t *macaddr)
+{
+ struct ieee80211com *ic = vap->iv_ic;
+ struct ieee80211_node *ni;
+
+ /* This always allocates zeroed memoery */
+ ni = ic->ic_node_alloc(vap);
+ if (ni != NULL) {
+ IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
+ "%s: %p<%s> refcnt %d\n", __func__, ni, ether_sprintf(macaddr),
+ ieee80211_node_refcnt(ni)+1);
- WME_UAPSD_NODE_TRIGSEQINIT(ni);
+ ieee80211_node_initref(ni); /* mark referenced */
+
+ IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr);
+
+ ni->ni_chan = IEEE80211_CHAN_ANYC;
+ ni->ni_authmode = IEEE80211_AUTH_OPEN;
+ ni->ni_txpower = ic->ic_txpowlimit;
+
+ ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey,
+ IEEE80211_KEYIX_NONE);
+ ni->ni_ath_defkeyindex = IEEE80211_INVAL_DEFKEY;
+ ni->ni_vap = vap;
+ ni->ni_ic = ic;
+ } else {
+ /* XXX msg */
+ vap->iv_stats.is_rx_nodealloc++;
+ }
return ni;
}
-EXPORT_SYMBOL(ieee80211_alloc_node);
/* Add wds address to the node table */
int
@@ -917,11 +950,11 @@
wds->wds_agingcount = WDS_AGING_COUNT;
hash = IEEE80211_NODE_HASH(macaddr);
IEEE80211_ADDR_COPY(wds->wds_macaddr, macaddr);
- ieee80211_ref_node(ni); /* Reference node */
- wds->wds_ni = ni;
- IEEE80211_NODE_LOCK_IRQ(nt);
+
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
+ wds->wds_ni = ieee80211_ref_node(ni);
LIST_INSERT_HEAD(&nt->nt_wds_hash[hash], wds, wds_hash);
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
return 0;
}
EXPORT_SYMBOL(ieee80211_add_wds_addr);
@@ -934,22 +967,19 @@
struct ieee80211_wds_addr *wds, *twds;
hash = IEEE80211_NODE_HASH(macaddr);
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
LIST_FOREACH_SAFE(wds, &nt->nt_wds_hash[hash], wds_hash, twds) {
if (IEEE80211_ADDR_EQ(wds->wds_macaddr, macaddr)) {
- if (ieee80211_node_dectestref(wds->wds_ni)) {
- _ieee80211_free_node(wds->wds_ni);
- LIST_REMOVE(wds, wds_hash);
- FREE(wds, M_80211_WDS);
- break;
- }
+ LIST_REMOVE(wds, wds_hash);
+ ieee80211_unref_node(&wds->wds_ni);
+ FREE(wds, M_80211_WDS);
+ break;
}
}
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
}
EXPORT_SYMBOL(ieee80211_remove_wds_addr);
-
/* Remove node references from wds table */
void
ieee80211_del_wds_node(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
@@ -957,19 +987,17 @@
int hash;
struct ieee80211_wds_addr *wds, *twds;
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
for (hash = 0; hash < IEEE80211_NODE_HASHSIZE; hash++) {
LIST_FOREACH_SAFE(wds, &nt->nt_wds_hash[hash], wds_hash, twds) {
if (wds->wds_ni == ni) {
- if (ieee80211_node_dectestref(ni)) {
- _ieee80211_free_node(ni);
- LIST_REMOVE(wds, wds_hash);
- FREE(wds, M_80211_WDS);
- }
+ LIST_REMOVE(wds, wds_hash);
+ ieee80211_unref_node(&wds->wds_ni);
+ FREE(wds, M_80211_WDS);
}
}
}
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
}
EXPORT_SYMBOL(ieee80211_del_wds_node);
@@ -980,88 +1008,46 @@
int hash;
struct ieee80211_wds_addr *wds, *twds;
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
for (hash = 0; hash < IEEE80211_NODE_HASHSIZE; hash++) {
LIST_FOREACH_SAFE(wds, &nt->nt_wds_hash[hash], wds_hash, twds) {
if (wds->wds_agingcount != WDS_AGING_STATIC) {
if (!wds->wds_agingcount) {
- if (ieee80211_node_dectestref(wds->wds_ni)) {
- _ieee80211_free_node(wds->wds_ni);
- LIST_REMOVE(wds, wds_hash);
- FREE(wds, M_80211_WDS);
- }
+ LIST_REMOVE(wds, wds_hash);
+ ieee80211_unref_node(&wds->wds_ni);
+ FREE(wds, M_80211_WDS);
} else
wds->wds_agingcount--;
}
}
}
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
mod_timer(&nt->nt_wds_aging_timer, jiffies + HZ * WDS_AGING_TIMER_VAL);
}
/*
- * Craft a temporary node suitable for sending a management frame
- * to the specified station. We craft only as much state as we
- * need to do the work since the node will be immediately reclaimed
- * once the send completes.
- */
-struct ieee80211_node *
-ieee80211_tmp_node(struct ieee80211vap *vap, const u_int8_t *macaddr)
-{
- struct ieee80211com *ic = vap->iv_ic;
- struct ieee80211_node *ni;
-
- ni = ic->ic_node_alloc(&ic->ic_sta,vap);
- if (ni != NULL) {
- IEEE80211_DPRINTF(vap, IEEE80211_MSG_NODE,
- "%s: %p<%s> refcnt %d\n", __func__, ni, ether_sprintf(macaddr),
- ieee80211_node_refcnt(ni)+1);
-
- IEEE80211_ADDR_COPY(ni->ni_macaddr, macaddr);
- IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_bss->ni_bssid);
- ieee80211_node_initref(ni); /* mark referenced */
- ni->ni_txpower = vap->iv_bss->ni_txpower;
- ni->ni_vap = vap;
- /* NB: required by ieee80211_fix_rate */
- ieee80211_node_set_chan(ic, ni);
- ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey,
- IEEE80211_KEYIX_NONE);
- /* XXX optimize away */
- IEEE80211_NODE_SAVEQ_INIT(ni, "unknown");
-
- ni->ni_table = NULL; /* NB: pedantic */
- ni->ni_ic = ic;
- ni->ni_rxfrag = NULL;
- ni->ni_challenge = NULL;
- } else {
- /* XXX msg */
- vap->iv_stats.is_rx_nodealloc++;
- }
- return ni;
-}
-
-/*
* Add the specified station to the station table.
*/
struct ieee80211_node *
-ieee80211_dup_bss(struct ieee80211vap *vap, const u_int8_t *macaddr)
+ieee80211_dup_bss(struct ieee80211vap *vap, const u_int8_t *macaddr,
+ unsigned char tmp)
{
- struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node *ni;
+
+ /* FIXME: Hack */
+ if (tmp)
+ ni = ieee80211_alloc_node(vap, macaddr);
+ else
+ ni = ieee80211_alloc_node_table(vap, macaddr);
- ni = ieee80211_alloc_node(&ic->ic_sta, vap, macaddr);
if (ni != NULL) {
- /*
- * Inherit from iv_bss.
- */
- ni->ni_authmode = vap->iv_bss->ni_authmode;
- ni->ni_txpower = vap->iv_bss->ni_txpower;
- ni->ni_vlan = vap->iv_bss->ni_vlan; /* XXX?? */
+ copy_bss(ni, vap->iv_bss);
IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_bss->ni_bssid);
- ieee80211_node_set_chan(ic, ni);
- ni->ni_rsn = vap->iv_bss->ni_rsn;
- ni->ni_rxfrag = NULL;
+ /* Do this only for nodes that already have a BSS. Otherwise
+ * ic_bsschan is not set and we get a KASSERT failure.
+ * Required by ieee80211_fix_rate */
+ ieee80211_node_set_chan(vap->iv_ic, ni);
}
return ni;
}
@@ -1069,19 +1055,16 @@
static struct ieee80211_node *
_ieee80211_find_wds_node(struct ieee80211_node_table *nt, const u_int8_t *macaddr)
{
- struct ieee80211_node *ni;
struct ieee80211_wds_addr *wds;
int hash;
- IEEE80211_NODE_LOCK_ASSERT(nt);
+ IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
hash = IEEE80211_NODE_HASH(macaddr);
LIST_FOREACH(wds, &nt->nt_wds_hash[hash], wds_hash) {
if (IEEE80211_ADDR_EQ(wds->wds_macaddr, macaddr)) {
- ni = wds->wds_ni;
if (wds->wds_agingcount != WDS_AGING_STATIC)
wds->wds_agingcount = WDS_AGING_COUNT; /* reset the aging count */
- ieee80211_ref_node(ni);
- return ni;
+ return ieee80211_ref_node(wds->wds_ni);
}
}
return NULL;
@@ -1099,7 +1082,7 @@
int hash;
struct ieee80211_wds_addr *wds;
- IEEE80211_NODE_LOCK_ASSERT(nt);
+ IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
hash = IEEE80211_NODE_HASH(macaddr);
LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
@@ -1120,9 +1103,7 @@
nodes. */
LIST_FOREACH(wds, &nt->nt_wds_hash[hash], wds_hash) {
if (IEEE80211_ADDR_EQ(wds->wds_macaddr, macaddr)) {
- ni = wds->wds_ni;
- ieee80211_ref_node(ni);
- return ni;
+ return ieee80211_ref_node(wds->wds_ni);
}
}
return NULL;
@@ -1137,9 +1118,9 @@
{
struct ieee80211_node *ni;
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
ni = _ieee80211_find_wds_node(nt, macaddr);
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
return ni;
}
EXPORT_SYMBOL(ieee80211_find_wds_node);
@@ -1154,9 +1135,9 @@
{
struct ieee80211_node *ni;
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
ni = _ieee80211_find_node(nt, macaddr);
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
return ni;
}
#ifdef IEEE80211_DEBUG_REFCNT
@@ -1179,7 +1160,7 @@
{
struct ieee80211_node *ni;
- ni = ieee80211_dup_bss(vap, macaddr);
+ ni = ieee80211_dup_bss(vap, macaddr, 0);
if (ni != NULL) {
/* XXX no rate negotiation; just dup */
ni->ni_rates = vap->iv_bss->ni_rates;
@@ -1202,14 +1183,13 @@
* driver has an opportunity to setup it's private state.
*/
struct ieee80211_node *
-ieee80211_add_neighbor(struct ieee80211vap *vap, const struct ieee80211_frame *wh,
+ieee80211_add_neighbor(struct ieee80211vap *vap, const struct ieee80211_frame *wh,
const struct ieee80211_scanparams *sp)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node *ni;
- ni = ieee80211_dup_bss(vap, wh->i_addr2); /* XXX alloc_node? */
- /* TODO: not really putting itself in a table */
+ ni = ieee80211_dup_bss(vap, wh->i_addr2, 1);
if (ni != NULL) {
ni->ni_esslen = sp->ssid[1];
memcpy(ni->ni_essid, sp->ssid + 2, sp->ssid[1]);
@@ -1284,12 +1264,12 @@
/* XXX check ic_bss first in station mode */
/* XXX 4-address frames? */
nt = &ic->ic_sta;
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
if (IS_CTL(wh) && !IS_PSPOLL(wh) /*&& !IS_RTS(ah)*/)
ni = _ieee80211_find_node(nt, wh->i_addr1);
else
ni = _ieee80211_find_node(nt, wh->i_addr2);
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
return ni;
#undef IS_PSPOLL
@@ -1326,9 +1306,9 @@
/* XXX can't hold lock across dup_bss due to recursive locking */
nt = &vap->iv_ic->ic_sta;
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
ni = _ieee80211_find_node(nt, mac);
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
if (ni == NULL) {
if (vap->iv_opmode == IEEE80211_M_IBSS ||
@@ -1355,11 +1335,9 @@
EXPORT_SYMBOL(ieee80211_find_txnode);
#endif
-/* Caller must lock the IEEE80211_NODE_LOCK
- *
- * Context: hwIRQ, softIRQ and process context
+/* Context: hwIRQ, softIRQ and process context
*/
-static void
+void
_ieee80211_free_node(struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
@@ -1373,117 +1351,36 @@
if (vap->iv_aid_bitmap != NULL)
IEEE80211_AID_CLR(vap, ni->ni_associd);
- if (nt != NULL) {
- TAILQ_REMOVE(&nt->nt_node, ni, ni_list);
- LIST_REMOVE(ni, ni_hash);
- }
+
vap->iv_ic->ic_node_free(ni);
}
+EXPORT_SYMBOL(_ieee80211_free_node);
-void
-#ifdef IEEE80211_DEBUG_REFCNT
-ieee80211_free_node_debug(struct ieee80211_node *ni, const char *func, int line)
-#else
-ieee80211_free_node(struct ieee80211_node *ni)
-#endif
+static void _reset_node(void *arg, struct ieee80211_node *ni)
{
- struct ieee80211_node_table *nt = ni->ni_table;
- struct ieee80211com *ic = ni->ni_ic;
+ if (ni->ni_associd != 0) {
+ struct ieee80211vap *vap = ni->ni_vap;
-#ifdef IEEE80211_DEBUG_REFCNT
- IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
- "%s (%s:%u) %p<%s> refcnt %d\n", __func__, func, line, ni,
- ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni) - 1);
-#endif
- /*
- * XXX: may need to lock out the following race. we dectestref
- * and determine it's time to free the node. between the if()
- * and lock, we take an rx intr to receive a frame from this
- * node. the rx path (tasklet or intr) bumps this node's
- * refcnt and xmits a response frame. eventually that response
- * will get reaped, and the reaping code will attempt to use
- * the node. the code below will delete the node prior
- * to the reap and we could get a crash.
- *
- * as a stopgap before delving deeper, lock intrs to
- * prevent this case.
- */
- IEEE80211_LOCK_IRQ(ic);
- if (ieee80211_node_dectestref(ni)) {
- /*
- * Beware; if the node is marked gone then it's already
- * been removed from the table and we cannot assume the
- * table still exists. Regardless, there's no need to lock
- * the table.
- */
- if (ni->ni_table != NULL) {
- IEEE80211_NODE_LOCK(nt);
- _ieee80211_free_node(ni);
- IEEE80211_NODE_UNLOCK(nt);
- } else
- _ieee80211_free_node(ni);
+ if (vap->iv_auth->ia_node_leave != NULL)
+ vap->iv_auth->ia_node_leave(ni);
+ if (vap->iv_aid_bitmap != NULL)
+ IEEE80211_AID_CLR(vap, ni->ni_associd);
}
- IEEE80211_UNLOCK_IRQ(ic);
-}
-#ifdef IEEE80211_DEBUG_REFCNT
-EXPORT_SYMBOL(ieee80211_free_node_debug);
-#else
-EXPORT_SYMBOL(ieee80211_free_node);
-#endif
-
-/*
- * Reclaim a node. If this is the last reference count then
- * do the normal free work. Otherwise remove it from the node
- * table and mark it gone by clearing the back-reference.
- */
-static void
-node_reclaim(struct ieee80211_node_table *nt, struct ieee80211_node *ni)
-{
- IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
- "%s: remove %p<%s> from %s table, refcnt %d\n",
- __func__, ni, ether_sprintf(ni->ni_macaddr),
- nt->nt_name, ieee80211_node_refcnt(ni)-1);
- if (!ieee80211_node_dectestref(ni)) {
- /*
- * Other references are present, just remove the
- * node from the table so it cannot be found. When
- * the references are dropped storage will be
- * reclaimed. This normally only happens for ic_bss.
- */
- TAILQ_REMOVE(&nt->nt_node, ni, ni_list);
- LIST_REMOVE(ni, ni_hash);
- ni->ni_table = NULL; /* clear reference */
- } else
- _ieee80211_free_node(ni);
+ ieee80211_node_leave(ni);
}
static void
ieee80211_node_table_reset(struct ieee80211_node_table *nt,
- struct ieee80211vap *match)
+ struct ieee80211vap *vap)
{
- struct ieee80211_node *ni, *next;
-
- IEEE80211_NODE_LOCK_IRQ(nt);
- TAILQ_FOREACH_SAFE(ni, &nt->nt_node, ni_list, next) {
- if (match != NULL && ni->ni_vap != match)
- continue;
- if (ni->ni_associd != 0) {
- struct ieee80211vap *vap = ni->ni_vap;
-
- if (vap->iv_auth->ia_node_leave != NULL)
- vap->iv_auth->ia_node_leave(ni);
- if (vap->iv_aid_bitmap != NULL)
- IEEE80211_AID_CLR(vap, ni->ni_associd);
- }
- node_reclaim(nt, ni);
- }
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ ieee80211_iterate_dev_nodes(vap->iv_dev, nt, _reset_node, NULL);
}
static void
ieee80211_node_table_cleanup(struct ieee80211_node_table *nt)
{
+ struct ieee80211com *ic = nt->nt_ic;
struct ieee80211_node *ni, *next;
TAILQ_FOREACH_SAFE(ni, &nt->nt_node, ni_list, next) {
@@ -1495,11 +1392,11 @@
if (vap->iv_aid_bitmap != NULL)
IEEE80211_AID_CLR(vap, ni->ni_associd);
}
- node_reclaim(nt, ni);
+ ic->ic_node_cleanup(ni);
}
del_timer(&nt->nt_wds_aging_timer);
IEEE80211_SCAN_LOCK_DESTROY(nt);
- IEEE80211_NODE_LOCK_DESTROY(nt);
+ IEEE80211_NODE_TABLE_LOCK_DESTROY(nt);
}
/*
@@ -1527,19 +1424,22 @@
IEEE80211_SCAN_LOCK_IRQ(nt);
gen = ++nt->nt_scangen;
restart:
- IEEE80211_NODE_LOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
if (ni->ni_scangen == gen) /* previously handled */
continue;
+ /* Temporary entries should no longer be in the node table */
/*
* Ignore entries for which have yet to receive an
* authentication frame. These are transient and
* will be reclaimed when the last reference to them
* goes away (when frame xmits complete).
*/
- if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
- (ni->ni_flags & IEEE80211_NODE_AREF) == 0)
- continue;
+ /*
+ *if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
+ * (ni->ni_flags & IEEE80211_NODE_AREF) == 0)
+ * continue;
+ */
ni->ni_scangen = gen;
/*
* Free fragment if not needed anymore
@@ -1591,7 +1491,7 @@
* ref for us as needed.
*/
ieee80211_ref_node(ni);
- IEEE80211_NODE_UNLOCK_IRQ_EARLY(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ_EARLY(nt);
ieee80211_send_nulldata(ni);
/* XXX stat? */
goto restart;
@@ -1614,18 +1514,18 @@
*/
ni->ni_vap->iv_stats.is_node_timeout++;
ieee80211_ref_node(ni);
- IEEE80211_NODE_UNLOCK_IRQ_EARLY(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ_EARLY(nt);
if (ni->ni_associd != 0) {
IEEE80211_SEND_MGMT(ni,
IEEE80211_FC0_SUBTYPE_DEAUTH,
IEEE80211_REASON_AUTH_EXPIRE);
}
ieee80211_node_leave(ni);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
goto restart;
}
}
- IEEE80211_NODE_UNLOCK_IRQ(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
IEEE80211_SCAN_UNLOCK_IRQ(nt);
}
@@ -1660,21 +1560,23 @@
IEEE80211_SCAN_LOCK_IRQ(nt);
gen = ++nt->nt_scangen;
+
restart:
- IEEE80211_NODE_LOCK(nt);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
if (dev != NULL && ni->ni_vap->iv_dev != dev)
continue; /* skip node not for this vap */
if (ni->ni_scangen != gen) {
ni->ni_scangen = gen;
(void) ieee80211_ref_node(ni);
- IEEE80211_NODE_UNLOCK(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ_EARLY(nt);
(*f)(arg, ni);
- ieee80211_free_node(ni);
+
+ ieee80211_unref_node(&ni);
goto restart;
}
}
- IEEE80211_NODE_UNLOCK(nt);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
IEEE80211_SCAN_UNLOCK_IRQ(nt);
}
@@ -1948,9 +1850,20 @@
"station with aid %d leaves (refcnt %u)",
IEEE80211_NODE_AID(ni), ieee80211_node_refcnt(ni));
+ /* From this point onwards we can no longer find the node,
+ * so no more references are generated
+ */
+ ieee80211_remove_wds_addr(nt, ni->ni_macaddr);
+ ieee80211_del_wds_node(nt, ni);
+ IEEE80211_NODE_TABLE_LOCK_IRQ(nt);
+ _node_table_leave(nt, ni);
+ IEEE80211_NODE_TABLE_UNLOCK_IRQ(nt);
+
/*
* If node wasn't previously associated all
* we need to do is reclaim the reference.
+ * This also goes for nodes that are auth'ed but
+ * not associated.
*/
/* XXX ibss mode bypasses 11g and notification */
if (ni->ni_associd == 0)
@@ -1968,9 +1881,11 @@
IEEE80211_LOCK_IRQ(ic);
if (vap->iv_aid_bitmap != NULL)
IEEE80211_AID_CLR(vap, ni->ni_associd);
+
ni->ni_associd = 0;
vap->iv_sta_assoc--;
ic->ic_sta_assoc--;
+
#ifdef ATH_SUPERG_XR
if (ni->ni_vap->iv_flags & IEEE80211_F_XR)
ic->ic_xr_sta_assoc--;
@@ -1981,6 +1896,7 @@
if (IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
ieee80211_node_leave_11g(ni);
IEEE80211_UNLOCK_IRQ(ic);
+
/*
* Cleanup station state. In particular clear various
* state that might otherwise be reused if the node
@@ -1990,19 +1906,10 @@
ieee80211_sta_leave(ni);
done:
/*
- * Remove the node from any table it's recorded in and
- * drop the caller's reference. Removal from the table
- * is important to ensure the node is not reprocessed
- * for inactivity.
- */
- if (nt != NULL) {
- IEEE80211_NODE_LOCK_IRQ(nt);
- node_reclaim(nt, ni);
- IEEE80211_NODE_UNLOCK_IRQ(nt);
- ieee80211_remove_wds_addr(nt,ni->ni_macaddr);
- ieee80211_del_wds_node(nt,ni);
- } else
- ieee80211_free_node(ni);
+ * Run a cleanup and then drop the caller's reference
+ */
+ ic->ic_node_cleanup(ni);
+ ieee80211_unref_node(&ni);
}
EXPORT_SYMBOL(ieee80211_node_leave);
@@ -2062,25 +1969,8 @@
void
ieee80211_node_reset(struct ieee80211_node *ni, struct ieee80211vap *vap)
{
- if (ni != NULL) {
- struct ieee80211_node_table *nt = ni->ni_table;
- if (!nt)
- nt = &vap->iv_ic->ic_sta;
- IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_bss->ni_bssid);
- ni->ni_prev_vap = ni->ni_vap;
- ni->ni_vap = vap;
- ni->ni_ic = vap->iv_ic;
- /*
- * if node not found in the node table
- * add it to the node table .
- */
- if(nt && ieee80211_find_node(nt, ni->ni_macaddr) != ni) {
- int hash = IEEE80211_NODE_HASH(ni->ni_macaddr);
- IEEE80211_NODE_LOCK_IRQ(nt);
- TAILQ_INSERT_TAIL(&nt->nt_node, ni, ni_list);
- LIST_INSERT_HEAD(&nt->nt_hash[hash], ni, ni_hash);
- ni->ni_table = nt;
- IEEE80211_NODE_UNLOCK_IRQ(nt);
- }
- }
+ IEEE80211_ADDR_COPY(ni->ni_bssid, vap->iv_bss->ni_bssid);
+ ni->ni_prev_vap = ni->ni_vap;
+ ni->ni_vap = vap;
+ ni->ni_ic = vap->iv_ic;
}
diff -ur madwifi.old/net80211/ieee80211_node.h madwifi.dev/net80211/ieee80211_node.h
--- madwifi.old/net80211/ieee80211_node.h 2007-03-06 11:59:28.000000000 +0100
+++ madwifi.dev/net80211/ieee80211_node.h 2007-05-21 08:10:46.869753416 +0200
@@ -52,14 +52,14 @@
* authorized. The latter timeout is shorter to more aggressively
* reclaim nodes that leave part way through the 802.1x exchange.
*/
-#define IEEE80211_INACT_WAIT 15 /* inactivity interval (secs) */
+#define IEEE80211_INACT_WAIT 15 /* inactivity interval (secs) */
#define IEEE80211_INACT_INIT (30/IEEE80211_INACT_WAIT) /* initial */
#define IEEE80211_INACT_AUTH (180/IEEE80211_INACT_WAIT) /* associated but not authorized */
#define IEEE80211_INACT_RUN (300/IEEE80211_INACT_WAIT) /* authorized */
#define IEEE80211_INACT_PROBE (30/IEEE80211_INACT_WAIT) /* probe */
#define IEEE80211_INACT_SCAN (300/IEEE80211_INACT_WAIT) /* scanned */
-#define IEEE80211_TRANS_WAIT 5 /* mgt frame tx timer (secs) */
+#define IEEE80211_TRANS_WAIT 5 /* mgt frame tx timer (secs) */
#define IEEE80211_NODE_HASHSIZE 32
/* simple hash is enough for variation of macaddr */
@@ -94,7 +94,8 @@
struct ieee80211_node_table *ni_table;
TAILQ_ENTRY(ieee80211_node) ni_list;
LIST_ENTRY(ieee80211_node) ni_hash;
- atomic_t ni_refcnt;
+ // ieee80211_node_lock_t ni_nodelock; /* on node - notably for ref counting */
+ ieee80211_node_ref_count_t ni_refcnt;
u_int ni_scangen; /* gen# for timeout scan */
u_int8_t ni_authmode; /* authentication algorithm */
u_int16_t ni_flags; /* special-purpose state */
@@ -121,13 +122,13 @@
u_int16_t ni_associd; /* assoc response */
u_int16_t ni_txpower; /* current transmit power (in 0.5 dBm) */
u_int16_t ni_vlan; /* vlan tag */
- u_int32_t *ni_challenge; /* shared-key challenge */
+ u_int32_t *ni_challenge; /* shared-key challenge */
u_int8_t *ni_wpa_ie; /* captured WPA ie */
u_int8_t *ni_rsn_ie; /* captured RSN ie */
u_int8_t *ni_wme_ie; /* captured WME ie */
u_int8_t *ni_ath_ie; /* captured Atheros ie */
- u_int16_t ni_txseqs[17]; /* tx seq per-tid */
- u_int16_t ni_rxseqs[17]; /* rx seq previous per-tid*/
+ u_int16_t ni_txseqs[17]; /* tx seq per-tid */
+ u_int16_t ni_rxseqs[17]; /* rx seq previous per-tid*/
u_int32_t ni_rxfragstamp; /* time stamp of last rx frag */
struct sk_buff *ni_rxfrag; /* rx frag reassembly */
struct ieee80211_rsnparms ni_rsn; /* RSN/WPA parameters */
@@ -156,7 +157,7 @@
struct ieee80211_channel *ni_chan;
u_int16_t ni_fhdwell; /* FH only */
u_int8_t ni_fhindex; /* FH only */
- u_int8_t ni_erp; /* ERP from beacon/probe resp */
+ u_int8_t ni_erp; /* ERP from beacon/probe resp */
u_int16_t ni_timoff; /* byte offset to TIM ie */
/* others */
@@ -168,7 +169,7 @@
struct ieee80211vap *ni_prev_vap; /* previously associated vap */
u_int8_t ni_uapsd; /* U-APSD per-node flags matching WMM STA Qos Info field */
u_int8_t ni_uapsd_maxsp; /* maxsp from flags above */
- u_int16_t ni_uapsd_trigseq[WME_NUM_AC]; /* trigger suppression on retry */
+ u_int16_t ni_uapsd_trigseq[WME_NUM_AC]; /* trigger suppression on retry */
__le16 ni_pschangeseq;
};
MALLOC_DECLARE(M_80211_NODE);
@@ -186,20 +187,6 @@
#define WME_UAPSD_NODE_INVALIDSEQ 0xffff
#define WME_UAPSD_NODE_TRIGSEQINIT(_ni) (memset(&(_ni)->ni_uapsd_trigseq[0], 0xff, sizeof((_ni)->ni_uapsd_trigseq)))
-static __inline struct ieee80211_node *
-ieee80211_ref_node(struct ieee80211_node *ni)
-{
- ieee80211_node_incref(ni);
- return ni;
-}
-
-static __inline void
-ieee80211_unref_node(struct ieee80211_node **ni)
-{
- ieee80211_node_decref(*ni);
- *ni = NULL; /* guard against use */
-}
-
void ieee80211_node_attach(struct ieee80211com *);
void ieee80211_node_detach(struct ieee80211com *);
void ieee80211_node_vattach(struct ieee80211vap *);
@@ -242,43 +229,39 @@
* is a second table for associated stations or neighbors.
*/
struct ieee80211_node_table {
+ const char *nt_name; /* for debugging */
struct ieee80211com *nt_ic; /* back reference */
- ieee80211_node_lock_t nt_nodelock; /* on node table */
+ ieee80211_node_table_lock_t nt_nodelock; /* on node table */
TAILQ_HEAD(, ieee80211_node) nt_node; /* information of all nodes */
ATH_LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE];
ATH_LIST_HEAD(, ieee80211_wds_addr) nt_wds_hash[IEEE80211_NODE_HASHSIZE];
- const char *nt_name; /* for debugging */
ieee80211_scan_lock_t nt_scanlock; /* on nt_scangen */
u_int nt_scangen; /* gen# for timeout scan */
int nt_inact_init; /* initial node inact setting */
struct timer_list nt_wds_aging_timer; /* timer to age out wds entries */
};
-struct ieee80211_node *ieee80211_alloc_node(struct ieee80211_node_table *,
- struct ieee80211vap *, const u_int8_t *);
-struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
- const u_int8_t *);
-struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
+struct ieee80211_node *ieee80211_alloc_node_table(struct ieee80211vap *,
const u_int8_t *);
+struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
+ const u_int8_t *, unsigned char);
void ieee80211_node_reset(struct ieee80211_node *, struct ieee80211vap *);
#ifdef IEEE80211_DEBUG_REFCNT
-void ieee80211_free_node_debug(struct ieee80211_node *, const char *, int);
struct ieee80211_node *ieee80211_find_node_debug(struct ieee80211_node_table *,
const u_int8_t *, const char *, int);
struct ieee80211_node *ieee80211_find_rxnode_debug(struct ieee80211com *,
const struct ieee80211_frame_min *, const char *, int);
struct ieee80211_node *ieee80211_find_txnode_debug(struct ieee80211vap *,
const u_int8_t *, const char *, int);
-#define ieee80211_free_node(ni) \
- ieee80211_free_node_debug(ni, __func__, __LINE__)
-#define ieee80211_find_node(nt, mac) \
- ieee80211_find_node_debug(nt, mac, __func__, __LINE__)
-#define ieee80211_find_rxnode(nt, wh) \
- ieee80211_find_rxnode_debug(nt, wh, __func__, __LINE__)
-#define ieee80211_find_txnode(nt, mac) \
- ieee80211_find_txnode_debug(nt, mac, __func__, __LINE__)
+#define ieee80211_unref_node(_ni) \
+ ieee80211_unref_node_debug(_ni, __func__, __LINE__)
+#define ieee80211_find_node(_nt, _mac) \
+ ieee80211_find_node_debug(_nt, _mac, __func__, __LINE__)
+#define ieee80211_find_rxnode(_nt, _wh) \
+ ieee80211_find_rxnode_debug(_nt, _wh, __func__, __LINE__)
+#define ieee80211_find_txnode(_nt, _mac) \
+ ieee80211_find_txnode_debug(_nt, _mac, __func__, __LINE__)
#else
-void ieee80211_free_node(struct ieee80211_node *);
struct ieee80211_node *ieee80211_find_node(struct ieee80211_node_table *,
const u_int8_t *);
@@ -287,6 +270,53 @@
struct ieee80211_node *ieee80211_find_txnode(struct ieee80211vap *,
const u_int8_t *);
#endif
+
+void _ieee80211_free_node(struct ieee80211_node *);
+
+static __inline struct ieee80211_node *
+ieee80211_ref_node(struct ieee80211_node *ni)
+{
+ ieee80211_node_incref(ni);
+ return ni;
+}
+
+static __inline struct ieee80211_node *
+_ieee80211_pass_node(struct ieee80211_node **pni) {
+ struct ieee80211_node *tmp = *pni;
+ *pni = NULL;
+ return (tmp);
+}
+
+#define PASS_NODE(_ni) \
+ _ieee80211_pass_node(&_ni)
+
+static __inline int
+_ieee80211_unref_node(struct ieee80211_node *ni) {
+ if (ieee80211_node_dectestref(ni)) {
+ _ieee80211_free_node(ni);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static __inline void
+#ifdef IEEE80211_DEBUG_REFCNT
+ieee80211_unref_node_debug(struct ieee80211_node **pni, const char *func, int line)
+#else
+ieee80211_unref_node(struct ieee80211_node **pni)
+#endif
+{
+ struct ieee80211_node *ni = *pni;
+#ifdef IEEE80211_DEBUG_REFCNT
+ IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
+ "%s (%s:%u) %p<%s> refcnt %d\n", __func__, func, line, ni,
+ ether_sprintf(ni->ni_macaddr), ieee80211_node_refcnt(ni) - 1);
+#endif
+ _ieee80211_unref_node(ni);
+ *pni = NULL; /* guard against use */
+}
+
int ieee80211_add_wds_addr(struct ieee80211_node_table *, struct ieee80211_node *,
const u_int8_t *, u_int8_t);
void ieee80211_remove_wds_addr(struct ieee80211_node_table *, const u_int8_t *);
diff -ur madwifi.old/net80211/ieee80211_output.c madwifi.dev/net80211/ieee80211_output.c
--- madwifi.old/net80211/ieee80211_output.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_output.c 2007-05-21 08:10:46.870753264 +0200
@@ -254,7 +254,7 @@
goto bad;
}
- cb->ni = ni;
+ cb->ni = ieee80211_ref_node(ni);
/* power-save checks */
if (WME_UAPSD_AC_CAN_TRIGGER(skb->priority, ni)) {
@@ -293,13 +293,14 @@
}
#endif
ieee80211_parent_queue_xmit(skb);
+ ieee80211_unref_node(&ni);
return 0;
bad:
if (skb != NULL)
dev_kfree_skb(skb);
if (ni != NULL)
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
return 0;
}
@@ -453,7 +454,7 @@
if (skb == NULL) {
/* XXX debug msg */
vap->iv_stats.is_tx_nobuf++;
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
return -ENOMEM;
}
cb = (struct ieee80211_cb *)skb->cb;
@@ -507,16 +508,14 @@
u_int8_t *frm;
int tid;
- ieee80211_ref_node(ni);
skb = ieee80211_getmgtframe(&frm, 2);
if (skb == NULL) {
/* XXX debug msg */
vap->iv_stats.is_tx_nobuf++;
- ieee80211_free_node(ni);
return -ENOMEM;
}
cb = (struct ieee80211_cb *)skb->cb;
- cb->ni = ni;
+ cb->ni = ieee80211_ref_node(ni);
skb->priority = ac;
qwh = (struct ieee80211_qosframe *)skb_push(skb, sizeof(struct ieee80211_qosframe));
@@ -865,7 +864,7 @@
nt = &ic->ic_sta;
ni_wds = ieee80211_find_wds_node(nt, eh.ether_shost);
if (ni_wds)
- ieee80211_free_node(ni_wds); /* Decr ref count */
+ ieee80211_unref_node(&ni_wds); /* Decr ref count */
else
ieee80211_add_wds_addr(nt, ni, eh.ether_shost, 0);
}
@@ -1719,7 +1718,6 @@
__func__, __LINE__,
ni, ether_sprintf(ni->ni_macaddr),
ieee80211_node_refcnt(ni) + 1);
- ieee80211_ref_node(ni);
/*
* prreq frame format
@@ -1735,7 +1733,6 @@
vap->app_ie[IEEE80211_APPIE_FRAME_PROBE_REQ].length);
if (skb == NULL) {
vap->iv_stats.is_tx_nobuf++;
- ieee80211_free_node(ni);
return -ENOMEM;
}
@@ -1758,7 +1755,7 @@
skb_trim(skb, frm - skb->data);
cb = (struct ieee80211_cb *)skb->cb;
- cb->ni = ni;
+ cb->ni = ieee80211_ref_node(ni);
wh = (struct ieee80211_frame *)
skb_push(skb, sizeof(struct ieee80211_frame));
@@ -2234,7 +2231,7 @@
mod_timer(&vap->iv_mgtsend, jiffies + timer * HZ);
return 0;
bad:
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
return ret;
#undef senderr
}
diff -ur madwifi.old/net80211/ieee80211_power.c madwifi.dev/net80211/ieee80211_power.c
--- madwifi.old/net80211/ieee80211_power.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_power.c 2007-05-21 08:10:46.870753264 +0200
@@ -109,13 +109,15 @@
int
ieee80211_node_saveq_drain(struct ieee80211_node *ni)
{
+ struct ieee80211_cb *cb = NULL;
struct sk_buff *skb;
int qlen;
IEEE80211_NODE_SAVEQ_LOCK(ni);
qlen = skb_queue_len(&ni->ni_savedq);
while ((skb = __skb_dequeue(&ni->ni_savedq)) != NULL) {
- ieee80211_free_node(ni);
+ cb = (struct ieee80211_cb *) skb->cb;
+ ieee80211_unref_node(&cb->ni);
dev_kfree_skb_any(skb);
}
IEEE80211_NODE_SAVEQ_UNLOCK(ni);
diff -ur madwifi.old/net80211/ieee80211_proto.c madwifi.dev/net80211/ieee80211_proto.c
--- madwifi.old/net80211/ieee80211_proto.c 2006-12-08 18:20:08.000000000 +0100
+++ madwifi.dev/net80211/ieee80211_proto.c 2007-05-21 08:10:46.871753112 +0200
@@ -1456,7 +1456,7 @@
*/
if (vap->iv_opmode == IEEE80211_M_WDS) {
struct ieee80211_node *wds_ni;
- wds_ni = ieee80211_alloc_node(&ic->ic_sta, vap, vap->wds_mac);
+ wds_ni = ieee80211_alloc_node_table(vap, vap->wds_mac);
if (wds_ni != NULL) {
if (ieee80211_add_wds_addr(&ic->ic_sta, wds_ni, vap->wds_mac, 1) == 0) {
ieee80211_node_authorize(wds_ni);
diff -ur madwifi.old/net80211/ieee80211_var.h madwifi.dev/net80211/ieee80211_var.h
--- madwifi.old/net80211/ieee80211_var.h 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_var.h 2007-05-21 08:12:01.499407984 +0200
@@ -44,6 +44,8 @@
#include <sys/queue.h>
+struct ieee80211vap;
+
#include <net80211/_ieee80211.h>
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_crypto.h>
@@ -115,7 +117,6 @@
* the underlying device and the net80211 layer is exposed here;
* e.g. device-specific callbacks.
*/
-struct ieee80211vap;
struct ieee80211com {
struct net_device *ic_dev; /* associated device */
@@ -236,8 +237,7 @@
/* new station association callback/notification */
void (*ic_newassoc)(struct ieee80211_node *, int);
/* node state management */
- struct ieee80211_node *(*ic_node_alloc)(struct ieee80211_node_table *,
- struct ieee80211vap *);
+ struct ieee80211_node *(*ic_node_alloc)(struct ieee80211vap *);
void (*ic_node_free)(struct ieee80211_node *);
void (*ic_node_cleanup)(struct ieee80211_node *);
u_int8_t (*ic_node_getrssi)(const struct ieee80211_node *);
diff -ur madwifi.old/net80211/ieee80211_wireless.c madwifi.dev/net80211/ieee80211_wireless.c
--- madwifi.old/net80211/ieee80211_wireless.c 2007-05-18 13:19:16.000000000 +0200
+++ madwifi.dev/net80211/ieee80211_wireless.c 2007-05-21 08:10:46.874752656 +0200
@@ -3186,7 +3186,7 @@
error = -ENXIO;
ieee80211_key_update_end(vap);
if (ni != NULL)
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
#ifdef ATH_SUPERG_XR
/* set the same params on the xr vap device if exists */
if (vap->iv_xrvap && !(vap->iv_flags & IEEE80211_F_XR))
@@ -3246,7 +3246,7 @@
memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
}
if (ni != NULL)
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
return (copy_to_user(iwr->u.data.pointer, &ik, sizeof(ik)) ? -EFAULT : 0);
}
@@ -3271,7 +3271,7 @@
return -ENOENT; /* No such entity is a more appropriate error */
/* XXX error return */
ieee80211_crypto_delkey(vap, &ni->ni_ucastkey, ni);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
} else {
if (kix >= IEEE80211_WEP_NKID)
return -EINVAL;
@@ -3382,7 +3382,7 @@
return -EINVAL;
if (dev == ni->ni_vap->iv_dev)
domlme(mlme, ni);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
} else
ieee80211_iterate_dev_nodes(dev, &ic->ic_sta, domlme, mlme);
break;
@@ -3401,7 +3401,7 @@
ieee80211_node_authorize(ni);
else
ieee80211_node_unauthorize(ni);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
break;
case IEEE80211_MLME_CLEAR_STATS:
if (vap->iv_opmode != IEEE80211_M_HOSTAP)
@@ -3412,7 +3412,7 @@
/* clear statistics */
memset(&ni->ni_stats, 0, sizeof(struct ieee80211_nodestats));
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
break;
default:
return -EINVAL;
@@ -3785,7 +3785,7 @@
ielen = sizeof(wpaie.rsn_ie);
memcpy(wpaie.rsn_ie, ni->ni_rsn_ie, ielen);
}
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
return (copy_to_user(iwr->u.data.pointer, &wpaie, sizeof(wpaie)) ?
-EFAULT : 0);
}
@@ -3813,7 +3813,7 @@
/* NB: copy out only the statistics */
error = copy_to_user(iwr->u.data.pointer + off, &ni->ni_stats,
iwr->u.data.length - off);
- ieee80211_free_node(ni);
+ ieee80211_unref_node(&ni);
return (error ? -EFAULT : 0);
}
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