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-rw-r--r--net/wireless/core.c38
-rw-r--r--net/wireless/core.h3
-rw-r--r--net/wireless/lib80211_crypt_ccmp.c2
-rw-r--r--net/wireless/lib80211_crypt_tkip.c23
-rw-r--r--net/wireless/nl80211.c4
-rw-r--r--net/wireless/reg.c161
-rw-r--r--net/wireless/reg.h18
-rw-r--r--net/wireless/scan.c38
-rw-r--r--net/wireless/sme.c40
-rw-r--r--net/wireless/sysfs.c20
-rw-r--r--net/wireless/util.c5
-rw-r--r--net/wireless/wext-compat.c2
12 files changed, 302 insertions, 52 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 20db90246de5..71b6b3a9cf1f 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1,7 +1,7 @@
/*
* This is the linux wireless configuration interface.
*
- * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/if.h>
@@ -31,15 +31,10 @@ MODULE_AUTHOR("Johannes Berg");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("wireless configuration support");
-/* RCU might be appropriate here since we usually
- * only read the list, and that can happen quite
- * often because we need to do it for each command */
+/* RCU-protected (and cfg80211_mutex for writers) */
LIST_HEAD(cfg80211_rdev_list);
int cfg80211_rdev_list_generation;
-/*
- * This is used to protect the cfg80211_rdev_list
- */
DEFINE_MUTEX(cfg80211_mutex);
/* for debugfs */
@@ -418,6 +413,18 @@ int wiphy_register(struct wiphy *wiphy)
int i;
u16 ifmodes = wiphy->interface_modes;
+ if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
+ return -EINVAL;
+
+ if (WARN_ON(wiphy->addresses &&
+ !is_zero_ether_addr(wiphy->perm_addr) &&
+ memcmp(wiphy->perm_addr, wiphy->addresses[0].addr,
+ ETH_ALEN)))
+ return -EINVAL;
+
+ if (wiphy->addresses)
+ memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);
+
/* sanity check ifmodes */
WARN_ON(!ifmodes);
ifmodes &= ((1 << __NL80211_IFTYPE_AFTER_LAST) - 1) & ~1;
@@ -477,7 +484,7 @@ int wiphy_register(struct wiphy *wiphy)
/* set up regulatory info */
wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
- list_add(&rdev->list, &cfg80211_rdev_list);
+ list_add_rcu(&rdev->list, &cfg80211_rdev_list);
cfg80211_rdev_list_generation++;
mutex_unlock(&cfg80211_mutex);
@@ -554,7 +561,8 @@ void wiphy_unregister(struct wiphy *wiphy)
* it impossible to find from userspace.
*/
debugfs_remove_recursive(rdev->wiphy.debugfsdir);
- list_del(&rdev->list);
+ list_del_rcu(&rdev->list);
+ synchronize_rcu();
/*
* Try to grab rdev->mtx. If a command is still in progress,
@@ -670,7 +678,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
INIT_LIST_HEAD(&wdev->event_list);
spin_lock_init(&wdev->event_lock);
mutex_lock(&rdev->devlist_mtx);
- list_add(&wdev->list, &rdev->netdev_list);
+ list_add_rcu(&wdev->list, &rdev->netdev_list);
rdev->devlist_generation++;
/* can only change netns with wiphy */
dev->features |= NETIF_F_NETNS_LOCAL;
@@ -782,13 +790,21 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
*/
if (!list_empty(&wdev->list)) {
sysfs_remove_link(&dev->dev.kobj, "phy80211");
- list_del_init(&wdev->list);
+ list_del_rcu(&wdev->list);
rdev->devlist_generation++;
#ifdef CONFIG_CFG80211_WEXT
kfree(wdev->wext.keys);
#endif
}
mutex_unlock(&rdev->devlist_mtx);
+ /*
+ * synchronise (so that we won't find this netdev
+ * from other code any more) and then clear the list
+ * head so that the above code can safely check for
+ * !list_empty() to avoid double-cleanup.
+ */
+ synchronize_rcu();
+ INIT_LIST_HEAD(&wdev->list);
break;
case NETDEV_PRE_UP:
if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 2d6a6b9c0c43..c326a667022a 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -1,7 +1,7 @@
/*
* Wireless configuration interface internals.
*
- * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
*/
#ifndef __NET_WIRELESS_CORE_H
#define __NET_WIRELESS_CORE_H
@@ -48,6 +48,7 @@ struct cfg80211_registered_device {
/* associate netdev list */
struct mutex devlist_mtx;
+ /* protected by devlist_mtx or RCU */
struct list_head netdev_list;
int devlist_generation;
int opencount; /* also protected by devlist_mtx */
diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c
index 2301dc1edc4c..b7fa31d5fd13 100644
--- a/net/wireless/lib80211_crypt_ccmp.c
+++ b/net/wireless/lib80211_crypt_ccmp.c
@@ -237,7 +237,6 @@ static int lib80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
return -1;
pos = skb->data + hdr_len + CCMP_HDR_LEN;
- mic = skb_put(skb, CCMP_MIC_LEN);
hdr = (struct ieee80211_hdr *)skb->data;
ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
@@ -257,6 +256,7 @@ static int lib80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
pos += len;
}
+ mic = skb_put(skb, CCMP_MIC_LEN);
for (i = 0; i < CCMP_MIC_LEN; i++)
mic[i] = b[i] ^ s0[i];
diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
index c36287399d7e..8cbdb32ff316 100644
--- a/net/wireless/lib80211_crypt_tkip.c
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -36,6 +36,8 @@ MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("lib80211 crypt: TKIP");
MODULE_LICENSE("GPL");
+#define TKIP_HDR_LEN 8
+
struct lib80211_tkip_data {
#define TKIP_KEY_LEN 32
u8 key[TKIP_KEY_LEN];
@@ -314,13 +316,12 @@ static int lib80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
u8 * rc4key, int keylen, void *priv)
{
struct lib80211_tkip_data *tkey = priv;
- int len;
u8 *pos;
struct ieee80211_hdr *hdr;
hdr = (struct ieee80211_hdr *)skb->data;
- if (skb_headroom(skb) < 8 || skb->len < hdr_len)
+ if (skb_headroom(skb) < TKIP_HDR_LEN || skb->len < hdr_len)
return -1;
if (rc4key == NULL || keylen < 16)
@@ -333,9 +334,8 @@ static int lib80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
}
tkip_mixing_phase2(rc4key, tkey->key, tkey->tx_ttak, tkey->tx_iv16);
- len = skb->len - hdr_len;
- pos = skb_push(skb, 8);
- memmove(pos, pos + 8, hdr_len);
+ pos = skb_push(skb, TKIP_HDR_LEN);
+ memmove(pos, pos + TKIP_HDR_LEN, hdr_len);
pos += hdr_len;
*pos++ = *rc4key;
@@ -353,7 +353,7 @@ static int lib80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
tkey->tx_iv32++;
}
- return 8;
+ return TKIP_HDR_LEN;
}
static int lib80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
@@ -384,9 +384,8 @@ static int lib80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
if ((lib80211_tkip_hdr(skb, hdr_len, rc4key, 16, priv)) < 0)
return -1;
- icv = skb_put(skb, 4);
-
crc = ~crc32_le(~0, pos, len);
+ icv = skb_put(skb, 4);
icv[0] = crc;
icv[1] = crc >> 8;
icv[2] = crc >> 16;
@@ -434,7 +433,7 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
return -1;
}
- if (skb->len < hdr_len + 8 + 4)
+ if (skb->len < hdr_len + TKIP_HDR_LEN + 4)
return -1;
pos = skb->data + hdr_len;
@@ -462,7 +461,7 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
}
iv16 = (pos[0] << 8) | pos[2];
iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
- pos += 8;
+ pos += TKIP_HDR_LEN;
if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) {
#ifdef CONFIG_LIB80211_DEBUG
@@ -523,8 +522,8 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
tkey->rx_iv16_new = iv16;
/* Remove IV and ICV */
- memmove(skb->data + 8, skb->data, hdr_len);
- skb_pull(skb, 8);
+ memmove(skb->data + TKIP_HDR_LEN, skb->data, hdr_len);
+ skb_pull(skb, TKIP_HDR_LEN);
skb_trim(skb, skb->len - 4);
return keyidx;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4af7991a9ec8..5b79ecf17bea 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3571,6 +3571,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev;
struct net_device *dev;
+ struct wireless_dev *wdev;
struct cfg80211_crypto_settings crypto;
struct ieee80211_channel *chan, *fixedchan;
const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
@@ -3616,7 +3617,8 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
}
mutex_lock(&rdev->devlist_mtx);
- fixedchan = rdev_fixed_channel(rdev, NULL);
+ wdev = dev->ieee80211_ptr;
+ fixedchan = rdev_fixed_channel(rdev, wdev);
if (fixedchan && chan != fixedchan) {
err = -EBUSY;
mutex_unlock(&rdev->devlist_mtx);
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 5f8071de7950..ed89c59bb431 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -134,6 +134,7 @@ static const struct ieee80211_regdomain *cfg80211_world_regdom =
&world_regdom;
static char *ieee80211_regdom = "00";
+static char user_alpha2[2];
module_param(ieee80211_regdom, charp, 0444);
MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
@@ -252,6 +253,27 @@ static bool regdom_changes(const char *alpha2)
return true;
}
+/*
+ * The NL80211_REGDOM_SET_BY_USER regdom alpha2 is cached, this lets
+ * you know if a valid regulatory hint with NL80211_REGDOM_SET_BY_USER
+ * has ever been issued.
+ */
+static bool is_user_regdom_saved(void)
+{
+ if (user_alpha2[0] == '9' && user_alpha2[1] == '7')
+ return false;
+
+ /* This would indicate a mistake on the design */
+ if (WARN((!is_world_regdom(user_alpha2) &&
+ !is_an_alpha2(user_alpha2)),
+ "Unexpected user alpha2: %c%c\n",
+ user_alpha2[0],
+ user_alpha2[1]))
+ return false;
+
+ return true;
+}
+
/**
* country_ie_integrity_changes - tells us if the country IE has changed
* @checksum: checksum of country IE of fields we are interested in
@@ -1646,7 +1668,7 @@ static int ignore_request(struct wiphy *wiphy,
switch (pending_request->initiator) {
case NL80211_REGDOM_SET_BY_CORE:
- return -EINVAL;
+ return 0;
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
last_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
@@ -1785,6 +1807,11 @@ new_request:
pending_request = NULL;
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_USER) {
+ user_alpha2[0] = last_request->alpha2[0];
+ user_alpha2[1] = last_request->alpha2[1];
+ }
+
/* When r == REG_INTERSECT we do need to call CRDA */
if (r < 0) {
/*
@@ -1904,12 +1931,16 @@ static void queue_regulatory_request(struct regulatory_request *request)
schedule_work(&reg_work);
}
-/* Core regulatory hint -- happens once during cfg80211_init() */
+/*
+ * Core regulatory hint -- happens during cfg80211_init()
+ * and when we restore regulatory settings.
+ */
static int regulatory_hint_core(const char *alpha2)
{
struct regulatory_request *request;
- BUG_ON(last_request);
+ kfree(last_request);
+ last_request = NULL;
request = kzalloc(sizeof(struct regulatory_request),
GFP_KERNEL);
@@ -1920,14 +1951,12 @@ static int regulatory_hint_core(const char *alpha2)
request->alpha2[1] = alpha2[1];
request->initiator = NL80211_REGDOM_SET_BY_CORE;
- queue_regulatory_request(request);
-
/*
* This ensures last_request is populated once modules
* come swinging in and calling regulatory hints and
* wiphy_apply_custom_regulatory().
*/
- flush_scheduled_work();
+ reg_process_hint(request);
return 0;
}
@@ -2109,6 +2138,123 @@ out:
mutex_unlock(&reg_mutex);
}
+static void restore_alpha2(char *alpha2, bool reset_user)
+{
+ /* indicates there is no alpha2 to consider for restoration */
+ alpha2[0] = '9';
+ alpha2[1] = '7';
+
+ /* The user setting has precedence over the module parameter */
+ if (is_user_regdom_saved()) {
+ /* Unless we're asked to ignore it and reset it */
+ if (reset_user) {
+ REG_DBG_PRINT("cfg80211: Restoring regulatory settings "
+ "including user preference\n");
+ user_alpha2[0] = '9';
+ user_alpha2[1] = '7';
+
+ /*
+ * If we're ignoring user settings, we still need to
+ * check the module parameter to ensure we put things
+ * back as they were for a full restore.
+ */
+ if (!is_world_regdom(ieee80211_regdom)) {
+ REG_DBG_PRINT("cfg80211: Keeping preference on "
+ "module parameter ieee80211_regdom: %c%c\n",
+ ieee80211_regdom[0],
+ ieee80211_regdom[1]);
+ alpha2[0] = ieee80211_regdom[0];
+ alpha2[1] = ieee80211_regdom[1];
+ }
+ } else {
+ REG_DBG_PRINT("cfg80211: Restoring regulatory settings "
+ "while preserving user preference for: %c%c\n",
+ user_alpha2[0],
+ user_alpha2[1]);
+ alpha2[0] = user_alpha2[0];
+ alpha2[1] = user_alpha2[1];
+ }
+ } else if (!is_world_regdom(ieee80211_regdom)) {
+ REG_DBG_PRINT("cfg80211: Keeping preference on "
+ "module parameter ieee80211_regdom: %c%c\n",
+ ieee80211_regdom[0],
+ ieee80211_regdom[1]);
+ alpha2[0] = ieee80211_regdom[0];
+ alpha2[1] = ieee80211_regdom[1];
+ } else
+ REG_DBG_PRINT("cfg80211: Restoring regulatory settings\n");
+}
+
+/*
+ * Restoring regulatory settings involves ingoring any
+ * possibly stale country IE information and user regulatory
+ * settings if so desired, this includes any beacon hints
+ * learned as we could have traveled outside to another country
+ * after disconnection. To restore regulatory settings we do
+ * exactly what we did at bootup:
+ *
+ * - send a core regulatory hint
+ * - send a user regulatory hint if applicable
+ *
+ * Device drivers that send a regulatory hint for a specific country
+ * keep their own regulatory domain on wiphy->regd so that does does
+ * not need to be remembered.
+ */
+static void restore_regulatory_settings(bool reset_user)
+{
+ char alpha2[2];
+ struct reg_beacon *reg_beacon, *btmp;
+
+ mutex_lock(&cfg80211_mutex);
+ mutex_lock(&reg_mutex);
+
+ reset_regdomains();
+ restore_alpha2(alpha2, reset_user);
+
+ /* Clear beacon hints */
+ spin_lock_bh(&reg_pending_beacons_lock);
+ if (!list_empty(&reg_pending_beacons)) {
+ list_for_each_entry_safe(reg_beacon, btmp,
+ &reg_pending_beacons, list) {
+ list_del(&reg_beacon->list);
+ kfree(reg_beacon);
+ }
+ }
+ spin_unlock_bh(&reg_pending_beacons_lock);
+
+ if (!list_empty(&reg_beacon_list)) {
+ list_for_each_entry_safe(reg_beacon, btmp,
+ &reg_beacon_list, list) {
+ list_del(&reg_beacon->list);
+ kfree(reg_beacon);
+ }
+ }
+
+ /* First restore to the basic regulatory settings */
+ cfg80211_regdomain = cfg80211_world_regdom;
+
+ mutex_unlock(&reg_mutex);
+ mutex_unlock(&cfg80211_mutex);
+
+ regulatory_hint_core(cfg80211_regdomain->alpha2);
+
+ /*
+ * This restores the ieee80211_regdom module parameter
+ * preference or the last user requested regulatory
+ * settings, user regulatory settings takes precedence.
+ */
+ if (is_an_alpha2(alpha2))
+ regulatory_hint_user(user_alpha2);
+}
+
+
+void regulatory_hint_disconnect(void)
+{
+ REG_DBG_PRINT("cfg80211: All devices are disconnected, going to "
+ "restore regulatory settings\n");
+ restore_regulatory_settings(false);
+}
+
static bool freq_is_chan_12_13_14(u16 freq)
{
if (freq == ieee80211_channel_to_frequency(12) ||
@@ -2498,6 +2644,9 @@ int regulatory_init(void)
cfg80211_regdomain = cfg80211_world_regdom;
+ user_alpha2[0] = '9';
+ user_alpha2[1] = '7';
+
/* We always try to get an update for the static regdomain */
err = regulatory_hint_core(cfg80211_regdomain->alpha2);
if (err) {
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index 3018508226ab..b26224a9f3bc 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -63,4 +63,22 @@ void regulatory_hint_11d(struct wiphy *wiphy,
u8 *country_ie,
u8 country_ie_len);
+/**
+ * regulatory_hint_disconnect - informs all devices have been disconneted
+ *
+ * Regulotory rules can be enhanced further upon scanning and upon
+ * connection to an AP. These rules become stale if we disconnect
+ * and go to another country, whether or not we suspend and resume.
+ * If we suspend, go to another country and resume we'll automatically
+ * get disconnected shortly after resuming and things will be reset as well.
+ * This routine is a helper to restore regulatory settings to how they were
+ * prior to our first connect attempt. This includes ignoring country IE and
+ * beacon regulatory hints. The ieee80211_regdom module parameter will always
+ * be respected but if a user had set the regulatory domain that will take
+ * precedence.
+ *
+ * Must be called from process context.
+ */
+void regulatory_hint_disconnect(void);
+
#endif /* __NET_WIRELESS_REG_H */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 06b0231ee5e3..978cac3414b5 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -143,9 +143,9 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
dev->bss_generation++;
}
-static u8 *find_ie(u8 num, u8 *ies, int len)
+const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len)
{
- while (len > 2 && ies[0] != num) {
+ while (len > 2 && ies[0] != eid) {
len -= ies[1] + 2;
ies += ies[1] + 2;
}
@@ -155,11 +155,12 @@ static u8 *find_ie(u8 num, u8 *ies, int len)
return NULL;
return ies;
}
+EXPORT_SYMBOL(cfg80211_find_ie);
static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
{
- const u8 *ie1 = find_ie(num, ies1, len1);
- const u8 *ie2 = find_ie(num, ies2, len2);
+ const u8 *ie1 = cfg80211_find_ie(num, ies1, len1);
+ const u8 *ie2 = cfg80211_find_ie(num, ies2, len2);
int r;
if (!ie1 && !ie2)
@@ -185,9 +186,9 @@ static bool is_bss(struct cfg80211_bss *a,
if (!ssid)
return true;
- ssidie = find_ie(WLAN_EID_SSID,
- a->information_elements,
- a->len_information_elements);
+ ssidie = cfg80211_find_ie(WLAN_EID_SSID,
+ a->information_elements,
+ a->len_information_elements);
if (!ssidie)
return false;
if (ssidie[1] != ssid_len)
@@ -204,9 +205,9 @@ static bool is_mesh(struct cfg80211_bss *a,
if (!is_zero_ether_addr(a->bssid))
return false;
- ie = find_ie(WLAN_EID_MESH_ID,
- a->information_elements,
- a->len_information_elements);
+ ie = cfg80211_find_ie(WLAN_EID_MESH_ID,
+ a->information_elements,
+ a->len_information_elements);
if (!ie)
return false;
if (ie[1] != meshidlen)
@@ -214,9 +215,9 @@ static bool is_mesh(struct cfg80211_bss *a,
if (memcmp(ie + 2, meshid, meshidlen))
return false;
- ie = find_ie(WLAN_EID_MESH_CONFIG,
- a->information_elements,
- a->len_information_elements);
+ ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG,
+ a->information_elements,
+ a->len_information_elements);
if (!ie)
return false;
if (ie[1] != sizeof(struct ieee80211_meshconf_ie))
@@ -395,11 +396,12 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
if (is_zero_ether_addr(res->pub.bssid)) {
/* must be mesh, verify */
- meshid = find_ie(WLAN_EID_MESH_ID, res->pub.information_elements,
- res->pub.len_information_elements);
- meshcfg = find_ie(WLAN_EID_MESH_CONFIG,
- res->pub.information_elements,
- res->pub.len_information_elements);
+ meshid = cfg80211_find_ie(WLAN_EID_MESH_ID,
+ res->pub.information_elements,
+ res->pub.len_information_elements);
+ meshcfg = cfg80211_find_ie(WLAN_EID_MESH_CONFIG,
+ res->pub.information_elements,
+ res->pub.len_information_elements);
if (!meshid || !meshcfg ||
meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) {
/* bogus mesh */
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 745c37e7992e..17fde0da1b08 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -34,6 +34,44 @@ struct cfg80211_conn {
bool auto_auth, prev_bssid_valid;
};
+bool cfg80211_is_all_idle(void)
+{
+ struct cfg80211_registered_device *rdev;
+ struct wireless_dev *wdev;
+ bool is_all_idle = true;
+
+ mutex_lock(&cfg80211_mutex);
+
+ /*
+ * All devices must be idle as otherwise if you are actively
+ * scanning some new beacon hints could be learned and would
+ * count as new regulatory hints.
+ */
+ list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+ cfg80211_lock_rdev(rdev);
+ list_for_each_entry(wdev, &rdev->netdev_list, list) {
+ wdev_lock(wdev);
+ if (wdev->sme_state != CFG80211_SME_IDLE)
+ is_all_idle = false;
+ wdev_unlock(wdev);
+ }
+ cfg80211_unlock_rdev(rdev);
+ }
+
+ mutex_unlock(&cfg80211_mutex);
+
+ return is_all_idle;
+}
+
+static void disconnect_work(struct work_struct *work)
+{
+ if (!cfg80211_is_all_idle())
+ return;
+
+ regulatory_hint_disconnect();
+}
+
+static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
static int cfg80211_conn_scan(struct wireless_dev *wdev)
{
@@ -658,6 +696,8 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
wdev->wext.connect.ssid_len = 0;
#endif
+
+ schedule_work(&cfg80211_disconnect_work);
}
void cfg80211_disconnected(struct net_device *dev, u16 reason,
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index efe3c5c92b2d..9f2cef3e0ca0 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -33,10 +33,30 @@ static ssize_t name ## _show(struct device *dev, \
SHOW_FMT(index, "%d", wiphy_idx);
SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
+SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
+
+static ssize_t addresses_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
+ char *start = buf;
+ int i;
+
+ if (!wiphy->addresses)
+ return sprintf(buf, "%pM\n", wiphy->perm_addr);
+
+ for (i = 0; i < wiphy->n_addresses; i++)
+ buf += sprintf(buf, "%pM\n", &wiphy->addresses[i].addr);
+
+ return buf - start;
+}
static struct device_attribute ieee80211_dev_attrs[] = {
__ATTR_RO(index),
__ATTR_RO(macaddress),
+ __ATTR_RO(address_mask),
+ __ATTR_RO(addresses),
{}
};
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 23557c1d0a9c..be2ab8c59e3a 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -227,8 +227,11 @@ unsigned int ieee80211_hdrlen(__le16 fc)
if (ieee80211_is_data(fc)) {
if (ieee80211_has_a4(fc))
hdrlen = 30;
- if (ieee80211_is_data_qos(fc))
+ if (ieee80211_is_data_qos(fc)) {
hdrlen += IEEE80211_QOS_CTL_LEN;
+ if (ieee80211_has_order(fc))
+ hdrlen += IEEE80211_HT_CTL_LEN;
+ }
goto out;
}
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 966d2f01beac..b17eeae448d5 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1214,7 +1214,7 @@ int cfg80211_wext_siwrate(struct net_device *dev,
memset(&mask, 0, sizeof(mask));
fixed = 0;
- maxrate = 0;
+ maxrate = (u32)-1;
if (rate->value < 0) {
/* nothing */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 09:03:36 +0000