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authorDavid S. Miller <davem@davemloft.net>2009-04-17 15:54:40 -0700
committerDavid S. Miller <davem@davemloft.net>2009-04-17 15:54:40 -0700
commit75a241f959a65ec9bde237d1af1a34ef794f0c9c (patch)
tree6a2b9fe1b525b69ac094d6ae088e00cb5d626969 /net
parente18e37e50966f137f8a3b807fe0da7703779be34 (diff)
parent957b0516f7881284b48f2f2e4a909a1c5de0ddf8 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/main.c2
-rw-r--r--net/mac80211/mlme.c26
-rw-r--r--net/mac80211/rx.c13
-rw-r--r--net/mac80211/wext.c43
-rw-r--r--net/wireless/core.h2
-rw-r--r--net/wireless/reg.c5
-rw-r--r--net/wireless/scan.c40
7 files changed, 100 insertions, 31 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a6f1d8a869b..fbcbed6cad0 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -258,7 +258,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
(chan->max_power - local->power_constr_level) :
chan->max_power;
- if (local->user_power_level)
+ if (local->user_power_level >= 0)
power = min(power, local->user_power_level);
if (local->hw.conf.power_level != power) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7ecda9d59d8..1619e0cd26e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -441,6 +441,9 @@ static bool ieee80211_check_tim(struct ieee802_11_elems *elems, u16 aid)
u8 index, indexn1, indexn2;
struct ieee80211_tim_ie *tim = (struct ieee80211_tim_ie *) elems->tim;
+ if (unlikely(!tim || elems->tim_len < 4))
+ return false;
+
aid &= 0x3fff;
index = aid / 8;
mask = 1 << (aid & 7);
@@ -945,9 +948,13 @@ void ieee80211_beacon_loss_work(struct work_struct *work)
u.mgd.beacon_loss_work);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
- "- sending probe request\n", sdata->dev->name,
- sdata->u.mgd.bssid);
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
+ "- sending probe request\n", sdata->dev->name,
+ sdata->u.mgd.bssid);
+ }
+#endif
ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
@@ -1007,9 +1014,13 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
(local->hw.conf.flags & IEEE80211_CONF_PS)) &&
time_after(jiffies,
ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) {
- printk(KERN_DEBUG "%s: beacon loss from AP %pM "
- "- sending probe request\n",
- sdata->dev->name, ifmgd->bssid);
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: beacon loss from AP %pM "
+ "- sending probe request\n",
+ sdata->dev->name, ifmgd->bssid);
+ }
+#endif
ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
ifmgd->ssid_len, NULL, 0);
@@ -2105,12 +2116,13 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
struct ieee80211_local *local =
container_of(work, struct ieee80211_local,
dynamic_ps_enable_work);
+ /* XXX: using scan_sdata is completely broken! */
struct ieee80211_sub_if_data *sdata = local->scan_sdata;
if (local->hw.conf.flags & IEEE80211_CONF_PS)
return;
- if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+ if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK && sdata)
ieee80211_send_nullfunc(local, sdata, 1);
local->hw.conf.flags |= IEEE80211_CONF_PS;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 64ebe664eff..5fa7aedd90e 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -29,6 +29,7 @@
static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
struct tid_ampdu_rx *tid_agg_rx,
struct sk_buff *skb,
+ struct ieee80211_rx_status *status,
u16 mpdu_seq_num,
int bar_req);
/*
@@ -1688,7 +1689,7 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
/* manage reordering buffer according to requested */
/* sequence number */
rcu_read_lock();
- ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL,
+ ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL, NULL,
start_seq_num, 1);
rcu_read_unlock();
return RX_DROP_UNUSABLE;
@@ -2293,6 +2294,7 @@ static inline u16 seq_sub(u16 sq1, u16 sq2)
static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
struct tid_ampdu_rx *tid_agg_rx,
struct sk_buff *skb,
+ struct ieee80211_rx_status *rxstatus,
u16 mpdu_seq_num,
int bar_req)
{
@@ -2374,6 +2376,8 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
/* put the frame in the reordering buffer */
tid_agg_rx->reorder_buf[index] = skb;
+ memcpy(tid_agg_rx->reorder_buf[index]->cb, rxstatus,
+ sizeof(*rxstatus));
tid_agg_rx->stored_mpdu_num++;
/* release the buffer until next missing frame */
index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn)
@@ -2399,7 +2403,8 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
}
static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
- struct sk_buff *skb)
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
{
struct ieee80211_hw *hw = &local->hw;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -2448,7 +2453,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
/* according to mpdu sequence number deal with reordering buffer */
mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4;
- ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb,
+ ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, status,
mpdu_seq_num, 0);
end_reorder:
return ret;
@@ -2512,7 +2517,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
return;
}
- if (!ieee80211_rx_reorder_ampdu(local, skb))
+ if (!ieee80211_rx_reorder_ampdu(local, skb, status))
__ieee80211_rx_handle_packet(hw, skb, status, rate);
rcu_read_unlock();
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index deb4ecec122..959aa8379cc 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -417,6 +417,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_channel* chan = local->hw.conf.channel;
+ bool reconf = false;
u32 reconf_flags = 0;
int new_power_level;
@@ -427,14 +428,38 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
if (!chan)
return -EINVAL;
- if (data->txpower.fixed)
- new_power_level = min(data->txpower.value, chan->max_power);
- else /* Automatic power level setting */
- new_power_level = chan->max_power;
+ /* only change when not disabling */
+ if (!data->txpower.disabled) {
+ if (data->txpower.fixed) {
+ if (data->txpower.value < 0)
+ return -EINVAL;
+ new_power_level = data->txpower.value;
+ /*
+ * Debatable, but we cannot do a fixed power
+ * level above the regulatory constraint.
+ * Use "iwconfig wlan0 txpower 15dBm" instead.
+ */
+ if (new_power_level > chan->max_power)
+ return -EINVAL;
+ } else {
+ /*
+ * Automatic power level setting, max being the value
+ * passed in from userland.
+ */
+ if (data->txpower.value < 0)
+ new_power_level = -1;
+ else
+ new_power_level = data->txpower.value;
+ }
+
+ reconf = true;
- local->user_power_level = new_power_level;
- if (local->hw.conf.power_level != new_power_level)
- reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
+ /*
+ * ieee80211_hw_config() will limit to the channel's
+ * max power and possibly power constraint from AP.
+ */
+ local->user_power_level = new_power_level;
+ }
if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
local->hw.conf.radio_enabled = !(data->txpower.disabled);
@@ -442,7 +467,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
- if (reconf_flags)
+ if (reconf || reconf_flags)
ieee80211_hw_config(local, reconf_flags);
return 0;
@@ -530,7 +555,7 @@ static int ieee80211_ioctl_giwfrag(struct net_device *dev,
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
frag->value = local->fragmentation_threshold;
- frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
+ frag->disabled = (frag->value >= IEEE80211_MAX_FRAG_THRESHOLD);
frag->fixed = 1;
return 0;
diff --git a/net/wireless/core.h b/net/wireless/core.h
index d43daa236ef..0a592e4295f 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -90,7 +90,7 @@ struct cfg80211_internal_bss {
struct rb_node rbn;
unsigned long ts;
struct kref ref;
- bool hold;
+ bool hold, ies_allocated;
/* must be last because of priv member */
struct cfg80211_bss pub;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 6327e1617ac..6c1993d9990 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2095,11 +2095,12 @@ int set_regdom(const struct ieee80211_regdomain *rd)
/* Caller must hold cfg80211_mutex */
void reg_device_remove(struct wiphy *wiphy)
{
- struct wiphy *request_wiphy;
+ struct wiphy *request_wiphy = NULL;
assert_cfg80211_lock();
- request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+ if (last_request)
+ request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
kfree(wiphy->regd);
if (!last_request || !request_wiphy)
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 2a00e362f5f..2ae65b39b52 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -58,6 +58,10 @@ static void bss_release(struct kref *ref)
bss = container_of(ref, struct cfg80211_internal_bss, ref);
if (bss->pub.free_priv)
bss->pub.free_priv(&bss->pub);
+
+ if (bss->ies_allocated)
+ kfree(bss->pub.information_elements);
+
kfree(bss);
}
@@ -360,19 +364,41 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
found = rb_find_bss(dev, res);
- if (found && overwrite) {
- list_replace(&found->list, &res->list);
- rb_replace_node(&found->rbn, &res->rbn,
- &dev->bss_tree);
- kref_put(&found->ref, bss_release);
- found = res;
- } else if (found) {
+ if (found) {
kref_get(&found->ref);
found->pub.beacon_interval = res->pub.beacon_interval;
found->pub.tsf = res->pub.tsf;
found->pub.signal = res->pub.signal;
found->pub.capability = res->pub.capability;
found->ts = res->ts;
+
+ /* overwrite IEs */
+ if (overwrite) {
+ size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
+ size_t ielen = res->pub.len_information_elements;
+
+ if (ksize(found) >= used + ielen) {
+ memcpy(found->pub.information_elements,
+ res->pub.information_elements, ielen);
+ found->pub.len_information_elements = ielen;
+ } else {
+ u8 *ies = found->pub.information_elements;
+
+ if (found->ies_allocated) {
+ if (ksize(ies) < ielen)
+ ies = krealloc(ies, ielen,
+ GFP_ATOMIC);
+ } else
+ ies = kmalloc(ielen, GFP_ATOMIC);
+
+ if (ies) {
+ memcpy(ies, res->pub.information_elements, ielen);
+ found->ies_allocated = true;
+ found->pub.information_elements = ies;
+ }
+ }
+ }
+
kref_put(&res->ref, bss_release);
} else {
/* this "consumes" the reference */