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authorJohn W. Linville <linville@tuxdriver.com>2010-10-01 19:12:36 +0400
committerJohn W. Linville <linville@tuxdriver.com>2010-10-01 19:12:36 +0400
commit41f4a6f71fe33faa7971c173c263fb431fe987fe (patch)
treefdc3e603162e3ad63f6ae4160f68eb803bb78d58 /net/mac80211
parent94d57c4cfaa43e29ca5fa5ff874048cfc67276f5 (diff)
parent1728943d83e9fd919e454332fe344944123b3c3a (diff)
downloadlinux-41f4a6f71fe33faa7971c173c263fb431fe987fe.tar.xz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/debugfs.c1
-rw-r--r--net/mac80211/debugfs_netdev.c3
-rw-r--r--net/mac80211/debugfs_sta.c2
-rw-r--r--net/mac80211/ieee80211_i.h43
-rw-r--r--net/mac80211/main.c3
-rw-r--r--net/mac80211/mlme.c16
-rw-r--r--net/mac80211/rx.c291
-rw-r--r--net/mac80211/scan.c3
-rw-r--r--net/mac80211/sta_info.c15
-rw-r--r--net/mac80211/status.c1
-rw-r--r--net/mac80211/util.c47
-rw-r--r--net/mac80211/wpa.c2
12 files changed, 251 insertions, 176 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index e81ef4e8cb32..ebd5b69f562e 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -368,7 +368,6 @@ void debugfs_hw_add(struct ieee80211_local *local)
if (!phyd)
return;
- local->debugfs.stations = debugfs_create_dir("stations", phyd);
local->debugfs.keys = debugfs_create_dir("keys", phyd);
DEBUGFS_ADD(frequency);
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 20b2998fa0ed..3e12430591b7 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -409,6 +409,9 @@ void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
sprintf(buf, "netdev:%s", sdata->name);
sdata->debugfs.dir = debugfs_create_dir(buf,
sdata->local->hw.wiphy->debugfsdir);
+ if (sdata->debugfs.dir)
+ sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
+ sdata->debugfs.dir);
add_files(sdata);
}
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 76839d4dfaac..6b7ff9fb4604 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -300,7 +300,7 @@ STA_OPS(ht_capa);
void ieee80211_sta_debugfs_add(struct sta_info *sta)
{
- struct dentry *stations_dir = sta->local->debugfs.stations;
+ struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
u8 mac[3*ETH_ALEN];
sta->debugfs.add_has_run = true;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9346a6b0f400..945fbf29719d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -159,13 +159,37 @@ typedef unsigned __bitwise__ ieee80211_rx_result;
#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
-#define IEEE80211_RX_IN_SCAN BIT(0)
-/* frame is destined to interface currently processed (incl. multicast frames) */
-#define IEEE80211_RX_RA_MATCH BIT(1)
-#define IEEE80211_RX_AMSDU BIT(2)
-#define IEEE80211_RX_FRAGMENTED BIT(3)
-#define IEEE80211_MALFORMED_ACTION_FRM BIT(4)
-/* only add flags here that do not change with subframes of an aMPDU */
+/**
+ * enum ieee80211_packet_rx_flags - packet RX flags
+ * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
+ * (incl. multicast frames)
+ * @IEEE80211_RX_IN_SCAN: received while scanning
+ * @IEEE80211_RX_FRAGMENTED: fragmented frame
+ * @IEEE80211_RX_AMSDU: a-MSDU packet
+ * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
+ *
+ * These are per-frame flags that are attached to a frame in the
+ * @rx_flags field of &struct ieee80211_rx_status.
+ */
+enum ieee80211_packet_rx_flags {
+ IEEE80211_RX_IN_SCAN = BIT(0),
+ IEEE80211_RX_RA_MATCH = BIT(1),
+ IEEE80211_RX_FRAGMENTED = BIT(2),
+ IEEE80211_RX_AMSDU = BIT(3),
+ IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
+};
+
+/**
+ * enum ieee80211_rx_flags - RX data flags
+ *
+ * @IEEE80211_RX_CMNTR: received on cooked monitor already
+ *
+ * These flags are used across handling multiple interfaces
+ * for a single frame.
+ */
+enum ieee80211_rx_flags {
+ IEEE80211_RX_CMNTR = BIT(0),
+};
struct ieee80211_rx_data {
struct sk_buff *skb;
@@ -564,6 +588,7 @@ struct ieee80211_sub_if_data {
#ifdef CONFIG_MAC80211_DEBUGFS
struct {
struct dentry *dir;
+ struct dentry *subdir_stations;
struct dentry *default_key;
struct dentry *default_mgmt_key;
} debugfs;
@@ -899,7 +924,6 @@ struct ieee80211_local {
#ifdef CONFIG_MAC80211_DEBUGFS
struct local_debugfsdentries {
struct dentry *rcdir;
- struct dentry *stations;
struct dentry *keys;
} debugfs;
#endif
@@ -1256,7 +1280,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
const u8 *key, u8 key_len, u8 key_idx);
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
- enum ieee80211_band band);
+ enum ieee80211_band band, u32 rate_mask,
+ u8 channel);
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fda97bb0018b..db341a99c7c7 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -110,7 +110,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
chan = scan_chan;
channel_type = NL80211_CHAN_NO_HT;
local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
- } else if (local->tmp_channel) {
+ } else if (local->tmp_channel &&
+ local->oper_channel != local->tmp_channel) {
chan = scan_chan = local->tmp_channel;
channel_type = local->tmp_channel_type;
local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 8b733cf6f3ea..77913a15f537 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -880,14 +880,6 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
IEEE80211_STA_BEACON_POLL);
- /*
- * Always handle WMM once after association regardless
- * of the first value the AP uses. Setting -1 here has
- * that effect because the AP values is an unsigned
- * 4-bit value.
- */
- sdata->u.mgd.wmm_last_param_set = -1;
-
ieee80211_led_assoc(local, 1);
if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
@@ -1367,6 +1359,14 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
return false;
}
+ /*
+ * Always handle WMM once after association regardless
+ * of the first value the AP uses. Setting -1 here has
+ * that effect because the AP values is an unsigned
+ * 4-bit value.
+ */
+ ifmgd->wmm_last_param_set = -1;
+
if (elems.wmm_param)
ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
elems.wmm_param_len);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c0368152b721..0b0e83ebe3d5 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -315,6 +315,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
int tid;
/* does the frame have a qos control field? */
@@ -323,9 +324,7 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
/* frame has qos control */
tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
if (*qc & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
- rx->flags |= IEEE80211_RX_AMSDU;
- else
- rx->flags &= ~IEEE80211_RX_AMSDU;
+ status->rx_flags |= IEEE80211_RX_AMSDU;
} else {
/*
* IEEE 802.11-2007, 7.1.3.4.1 ("Sequence Number field"):
@@ -387,26 +386,25 @@ static ieee80211_rx_result debug_noinline
ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
{
struct ieee80211_local *local = rx->local;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
struct sk_buff *skb = rx->skb;
- if (unlikely(test_bit(SCAN_HW_SCANNING, &local->scanning)))
+ if (likely(!(status->rx_flags & IEEE80211_RX_IN_SCAN)))
+ return RX_CONTINUE;
+
+ if (test_bit(SCAN_HW_SCANNING, &local->scanning))
return ieee80211_scan_rx(rx->sdata, skb);
- if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning) &&
- (rx->flags & IEEE80211_RX_IN_SCAN))) {
+ if (test_bit(SCAN_SW_SCANNING, &local->scanning)) {
/* drop all the other packets during a software scan anyway */
if (ieee80211_scan_rx(rx->sdata, skb) != RX_QUEUED)
dev_kfree_skb(skb);
return RX_QUEUED;
}
- if (unlikely(rx->flags & IEEE80211_RX_IN_SCAN)) {
- /* scanning finished during invoking of handlers */
- I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
- return RX_DROP_UNUSABLE;
- }
-
- return RX_CONTINUE;
+ /* scanning finished during invoking of handlers */
+ I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
+ return RX_DROP_UNUSABLE;
}
@@ -785,13 +783,14 @@ static ieee80211_rx_result debug_noinline
ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
/* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
rx->sta->last_seq_ctrl[rx->queue] ==
hdr->seq_ctrl)) {
- if (rx->flags & IEEE80211_RX_RA_MATCH) {
+ if (status->rx_flags & IEEE80211_RX_RA_MATCH) {
rx->local->dot11FrameDuplicateCount++;
rx->sta->num_duplicates++;
}
@@ -824,7 +823,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
if ((!ieee80211_has_fromds(hdr->frame_control) &&
!ieee80211_has_tods(hdr->frame_control) &&
ieee80211_is_data(hdr->frame_control)) ||
- !(rx->flags & IEEE80211_RX_RA_MATCH)) {
+ !(status->rx_flags & IEEE80211_RX_RA_MATCH)) {
/* Drop IBSS frames and frames for other hosts
* silently. */
return RX_DROP_MONITOR;
@@ -881,7 +880,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
* No point in finding a key and decrypting if the frame is neither
* addressed to us nor a multicast frame.
*/
- if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_CONTINUE;
/* start without a key */
@@ -1114,7 +1113,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
sta->last_rx = jiffies;
}
- if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_CONTINUE;
if (rx->sdata->vif.type == NL80211_IFTYPE_STATION)
@@ -1271,6 +1270,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
unsigned int frag, seq;
struct ieee80211_fragment_entry *entry;
struct sk_buff *skb;
+ struct ieee80211_rx_status *status;
hdr = (struct ieee80211_hdr *)rx->skb->data;
fc = hdr->frame_control;
@@ -1370,7 +1370,8 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
}
/* Complete frame has been reassembled - process it now */
- rx->flags |= IEEE80211_RX_FRAGMENTED;
+ status = IEEE80211_SKB_RXCB(rx->skb);
+ status->rx_flags |= IEEE80211_RX_FRAGMENTED;
out:
if (rx->sta)
@@ -1387,9 +1388,10 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
{
struct ieee80211_sub_if_data *sdata = rx->sdata;
__le16 fc = ((struct ieee80211_hdr *)rx->skb->data)->frame_control;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
if (likely(!rx->sta || !ieee80211_is_pspoll(fc) ||
- !(rx->flags & IEEE80211_RX_RA_MATCH)))
+ !(status->rx_flags & IEEE80211_RX_RA_MATCH)))
return RX_CONTINUE;
if ((sdata->vif.type != NL80211_IFTYPE_AP) &&
@@ -1550,6 +1552,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
struct sk_buff *skb, *xmit_skb;
struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
struct sta_info *dsta;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
skb = rx->skb;
xmit_skb = NULL;
@@ -1557,7 +1560,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
if ((sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
!(sdata->flags & IEEE80211_SDATA_DONT_BRIDGE_PACKETS) &&
- (rx->flags & IEEE80211_RX_RA_MATCH) &&
+ (status->rx_flags & IEEE80211_RX_RA_MATCH) &&
(sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->u.vlan.sta)) {
if (is_multicast_ether_addr(ehdr->h_dest)) {
/*
@@ -1634,6 +1637,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
__le16 fc = hdr->frame_control;
struct sk_buff_head frame_list;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
if (unlikely(!ieee80211_is_data(fc)))
return RX_CONTINUE;
@@ -1641,7 +1645,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
if (unlikely(!ieee80211_is_data_present(fc)))
return RX_DROP_MONITOR;
- if (!(rx->flags & IEEE80211_RX_AMSDU))
+ if (!(status->rx_flags & IEEE80211_RX_AMSDU))
return RX_CONTINUE;
if (ieee80211_has_a4(hdr->frame_control) &&
@@ -1692,6 +1696,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
struct sk_buff *skb = rx->skb, *fwd_skb;
struct ieee80211_local *local = rx->local;
struct ieee80211_sub_if_data *sdata = rx->sdata;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
hdr = (struct ieee80211_hdr *) skb->data;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
@@ -1737,7 +1742,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
mesh_hdr->ttl--;
- if (rx->flags & IEEE80211_RX_RA_MATCH) {
+ if (status->rx_flags & IEEE80211_RX_RA_MATCH) {
if (!mesh_hdr->ttl)
IEEE80211_IFSTA_MESH_CTR_INC(&rx->sdata->u.mesh,
dropped_frames_ttl);
@@ -1947,6 +1952,7 @@ static ieee80211_rx_result debug_noinline
ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx)
{
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
/*
* From here on, look only at management frames.
@@ -1959,7 +1965,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx)
if (!ieee80211_is_mgmt(mgmt->frame_control))
return RX_DROP_MONITOR;
- if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_MONITOR;
if (ieee80211_drop_unencrypted_mgmt(rx))
@@ -1974,6 +1980,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
struct ieee80211_local *local = rx->local;
struct ieee80211_sub_if_data *sdata = rx->sdata;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
int len = rx->skb->len;
if (!ieee80211_is_action(mgmt->frame_control))
@@ -1986,7 +1993,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
return RX_DROP_UNUSABLE;
- if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_UNUSABLE;
switch (mgmt->u.action.category) {
@@ -2082,7 +2089,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
return RX_CONTINUE;
invalid:
- rx->flags |= IEEE80211_MALFORMED_ACTION_FRM;
+ status->rx_flags |= IEEE80211_RX_MALFORMED_ACTION_FRM;
/* will return in the next handlers */
return RX_CONTINUE;
@@ -2104,10 +2111,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx)
{
- struct ieee80211_rx_status *status;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
/* skip known-bad action frames and return them in the next handler */
- if (rx->flags & IEEE80211_MALFORMED_ACTION_FRM)
+ if (status->rx_flags & IEEE80211_RX_MALFORMED_ACTION_FRM)
return RX_CONTINUE;
/*
@@ -2116,7 +2123,6 @@ ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx)
* so userspace can register for those to know whether ones
* it transmitted were processed or returned.
*/
- status = IEEE80211_SKB_RXCB(rx->skb);
if (cfg80211_rx_mgmt(rx->sdata->dev, status->freq,
rx->skb->data, rx->skb->len,
@@ -2138,6 +2144,7 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx)
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
struct sk_buff *nskb;
struct ieee80211_sub_if_data *sdata = rx->sdata;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
if (!ieee80211_is_action(mgmt->frame_control))
return RX_CONTINUE;
@@ -2152,7 +2159,7 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx)
* registration mechanisms, but older ones still use cooked
* monitor interfaces so push all frames there.
*/
- if (!(rx->flags & IEEE80211_MALFORMED_ACTION_FRM) &&
+ if (!(status->rx_flags & IEEE80211_RX_MALFORMED_ACTION_FRM) &&
(sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
return RX_DROP_MONITOR;
@@ -2286,8 +2293,13 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
struct net_device *prev_dev = NULL;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- if (status->flag & RX_FLAG_INTERNAL_CMTR)
+ /*
+ * If cooked monitor has been processed already, then
+ * don't do it again. If not, set the flag.
+ */
+ if (rx->flags & IEEE80211_RX_CMNTR)
goto out_free_skb;
+ rx->flags |= IEEE80211_RX_CMNTR;
if (skb_headroom(skb) < sizeof(*rthdr) &&
pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC))
@@ -2343,12 +2355,8 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
if (prev_dev) {
skb->dev = prev_dev;
netif_receive_skb(skb);
- skb = NULL;
- } else
- goto out_free_skb;
-
- status->flag |= RX_FLAG_INTERNAL_CMTR;
- return;
+ return;
+ }
out_free_skb:
dev_kfree_skb(skb);
@@ -2409,6 +2417,7 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx,
* same TID from the same station
*/
rx->skb = skb;
+ rx->flags = 0;
CALL_RXH(ieee80211_rx_h_decrypt)
CALL_RXH(ieee80211_rx_h_check_more_data)
@@ -2443,18 +2452,13 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx,
}
}
-static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_rx_data *rx,
- struct sk_buff *skb)
+static void ieee80211_invoke_rx_handlers(struct ieee80211_rx_data *rx)
{
struct sk_buff_head reorder_release;
ieee80211_rx_result res = RX_DROP_MONITOR;
__skb_queue_head_init(&reorder_release);
- rx->skb = skb;
- rx->sdata = sdata;
-
#define CALL_RXH(rxh) \
do { \
res = rxh(rx); \
@@ -2484,7 +2488,12 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
{
struct sk_buff_head frames;
- struct ieee80211_rx_data rx = { };
+ struct ieee80211_rx_data rx = {
+ .sta = sta,
+ .sdata = sta->sdata,
+ .local = sta->local,
+ .queue = tid,
+ };
struct tid_ampdu_rx *tid_agg_rx;
tid_agg_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]);
@@ -2493,17 +2502,6 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
__skb_queue_head_init(&frames);
- /* construct rx struct */
- rx.sta = sta;
- rx.sdata = sta->sdata;
- rx.local = sta->local;
- rx.queue = tid;
- rx.flags |= IEEE80211_RX_RA_MATCH;
-
- if (unlikely(test_bit(SCAN_HW_SCANNING, &sta->local->scanning) ||
- test_bit(SCAN_OFF_CHANNEL, &sta->local->scanning)))
- rx.flags |= IEEE80211_RX_IN_SCAN;
-
spin_lock(&tid_agg_rx->reorder_lock);
ieee80211_sta_reorder_release(&sta->local->hw, tid_agg_rx, &frames);
spin_unlock(&tid_agg_rx->reorder_lock);
@@ -2513,10 +2511,10 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
/* main receive path */
-static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_rx_data *rx,
+static int prepare_for_handlers(struct ieee80211_rx_data *rx,
struct ieee80211_hdr *hdr)
{
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
u8 *bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
@@ -2530,7 +2528,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
compare_ether_addr(sdata->vif.addr, hdr->addr1) != 0) {
if (!(sdata->dev->flags & IFF_PROMISC))
return 0;
- rx->flags &= ~IEEE80211_RX_RA_MATCH;
+ status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}
break;
case NL80211_IFTYPE_ADHOC:
@@ -2540,15 +2538,15 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
return 1;
}
else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) {
- if (!(rx->flags & IEEE80211_RX_IN_SCAN))
+ if (!(status->rx_flags & IEEE80211_RX_IN_SCAN))
return 0;
- rx->flags &= ~IEEE80211_RX_RA_MATCH;
+ status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!multicast &&
compare_ether_addr(sdata->vif.addr,
hdr->addr1) != 0) {
if (!(sdata->dev->flags & IFF_PROMISC))
return 0;
- rx->flags &= ~IEEE80211_RX_RA_MATCH;
+ status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!rx->sta) {
int rate_idx;
if (status->flag & RX_FLAG_HT)
@@ -2566,7 +2564,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
if (!(sdata->dev->flags & IFF_PROMISC))
return 0;
- rx->flags &= ~IEEE80211_RX_RA_MATCH;
+ status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}
break;
case NL80211_IFTYPE_AP_VLAN:
@@ -2577,9 +2575,9 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
return 0;
} else if (!ieee80211_bssid_match(bssid,
sdata->vif.addr)) {
- if (!(rx->flags & IEEE80211_RX_IN_SCAN))
+ if (!(status->rx_flags & IEEE80211_RX_IN_SCAN))
return 0;
- rx->flags &= ~IEEE80211_RX_RA_MATCH;
+ status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}
break;
case NL80211_IFTYPE_WDS:
@@ -2598,6 +2596,51 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
}
/*
+ * This function returns whether or not the SKB
+ * was destined for RX processing or not, which,
+ * if consume is true, is equivalent to whether
+ * or not the skb was consumed.
+ */
+static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx,
+ struct sk_buff *skb, bool consume)
+{
+ struct ieee80211_local *local = rx->local;
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *hdr = (void *)skb->data;
+ int prepares;
+
+ rx->skb = skb;
+ status->rx_flags |= IEEE80211_RX_RA_MATCH;
+ prepares = prepare_for_handlers(rx, hdr);
+
+ if (!prepares)
+ return false;
+
+ if (status->flag & RX_FLAG_MMIC_ERROR) {
+ if (status->rx_flags & IEEE80211_RX_RA_MATCH)
+ ieee80211_rx_michael_mic_report(hdr, rx);
+ return false;
+ }
+
+ if (!consume) {
+ skb = skb_copy(skb, GFP_ATOMIC);
+ if (!skb) {
+ if (net_ratelimit())
+ wiphy_debug(local->hw.wiphy,
+ "failed to copy multicast frame for %s\n",
+ sdata->name);
+ return true;
+ }
+
+ rx->skb = skb;
+ }
+
+ ieee80211_invoke_rx_handlers(rx);
+ return true;
+}
+
+/*
* This is the actual Rx frames handler. as it blongs to Rx path it must
* be called with rcu_read_lock protection.
*/
@@ -2610,11 +2653,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
struct ieee80211_hdr *hdr;
__le16 fc;
struct ieee80211_rx_data rx;
- int prepares;
- struct ieee80211_sub_if_data *prev = NULL;
- struct sk_buff *skb_new;
- struct sta_info *sta, *tmp;
- bool found_sta = false;
+ struct ieee80211_sub_if_data *prev;
+ struct sta_info *sta, *tmp, *prev_sta;
int err = 0;
fc = ((struct ieee80211_hdr *)skb->data)->frame_control;
@@ -2627,7 +2667,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
if (unlikely(test_bit(SCAN_HW_SCANNING, &local->scanning) ||
test_bit(SCAN_OFF_CHANNEL, &local->scanning)))
- rx.flags |= IEEE80211_RX_IN_SCAN;
+ status->rx_flags |= IEEE80211_RX_IN_SCAN;
if (ieee80211_is_mgmt(fc))
err = skb_linearize(skb);
@@ -2644,90 +2684,67 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
ieee80211_verify_alignment(&rx);
if (ieee80211_is_data(fc)) {
+ prev_sta = NULL;
+
for_each_sta_info(local, hdr->addr2, sta, tmp) {
- rx.sta = sta;
- found_sta = true;
- rx.sdata = sta->sdata;
-
- rx.flags |= IEEE80211_RX_RA_MATCH;
- prepares = prepare_for_handlers(rx.sdata, &rx, hdr);
- if (prepares) {
- if (status->flag & RX_FLAG_MMIC_ERROR) {
- if (rx.flags & IEEE80211_RX_RA_MATCH)
- ieee80211_rx_michael_mic_report(hdr, &rx);
- } else
- prev = rx.sdata;
- }
- }
- }
- if (!found_sta) {
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (!ieee80211_sdata_running(sdata))
+ if (!prev_sta) {
+ prev_sta = sta;
continue;
+ }
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
- sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
- continue;
+ rx.sta = prev_sta;
+ rx.sdata = prev_sta->sdata;
+ ieee80211_prepare_and_rx_handle(&rx, skb, false);
- /*
- * frame is destined for this interface, but if it's
- * not also for the previous one we handle that after
- * the loop to avoid copying the SKB once too much
- */
+ prev_sta = sta;
+ }
- if (!prev) {
- prev = sdata;
- continue;
- }
+ if (prev_sta) {
+ rx.sta = prev_sta;
+ rx.sdata = prev_sta->sdata;
- rx.sta = sta_info_get_bss(prev, hdr->addr2);
+ if (ieee80211_prepare_and_rx_handle(&rx, skb, true))
+ return;
+ }
+ }
- rx.flags |= IEEE80211_RX_RA_MATCH;
- prepares = prepare_for_handlers(prev, &rx, hdr);
+ prev = NULL;
- if (!prepares)
- goto next;
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!ieee80211_sdata_running(sdata))
+ continue;
- if (status->flag & RX_FLAG_MMIC_ERROR) {
- rx.sdata = prev;
- if (rx.flags & IEEE80211_RX_RA_MATCH)
- ieee80211_rx_michael_mic_report(hdr,
- &rx);
- goto next;
- }
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+ sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ continue;
- /*
- * frame was destined for the previous interface
- * so invoke RX handlers for it
- */
+ /*
+ * frame is destined for this interface, but if it's
+ * not also for the previous one we handle that after
+ * the loop to avoid copying the SKB once too much
+ */
- skb_new = skb_copy(skb, GFP_ATOMIC);
- if (!skb_new) {
- if (net_ratelimit())
- wiphy_debug(local->hw.wiphy,
- "failed to copy multicast frame for %s\n",
- prev->name);
- goto next;
- }
- ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
-next:
+ if (!prev) {
prev = sdata;
+ continue;
}
- if (prev) {
- rx.sta = sta_info_get_bss(prev, hdr->addr2);
+ rx.sta = sta_info_get_bss(prev, hdr->addr2);
+ rx.sdata = prev;
+ ieee80211_prepare_and_rx_handle(&rx, skb, false);
- rx.flags |= IEEE80211_RX_RA_MATCH;
- prepares = prepare_for_handlers(prev, &rx, hdr);
+ prev = sdata;
+ }
- if (!prepares)
- prev = NULL;
- }
+ if (prev) {
+ rx.sta = sta_info_get_bss(prev, hdr->addr2);
+ rx.sdata = prev;
+
+ if (ieee80211_prepare_and_rx_handle(&rx, skb, true))
+ return;
}
- if (prev)
- ieee80211_invoke_rx_handlers(prev, &rx, skb);
- else
- dev_kfree_skb(skb);
+
+ dev_kfree_skb(skb);
}
/*
@@ -2801,6 +2818,8 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
}
}
+ status->rx_flags = 0;
+
/*
* key references and virtual interfaces are protected using RCU
* and this requires that we are in a read-side RCU section during
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index d60389ba9b95..5171a9581631 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -242,7 +242,8 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
local->hw_scan_req->n_channels = n_chans;
ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie,
- req->ie, req->ie_len, band);
+ req->ie, req->ie_len, band, (u32) -1,
+ 0);
local->hw_scan_req->ie_len = ielen;
return true;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 44e10a9de0a7..ca2cba9cea87 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -838,13 +838,20 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&local->sta_mtx);
}
-struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw,
- const u8 *addr)
+struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw,
+ const u8 *addr,
+ const u8 *localaddr)
{
struct sta_info *sta, *nxt;
- /* Just return a random station ... first in list ... */
+ /*
+ * Just return a random station if localaddr is NULL
+ * ... first in list.
+ */
for_each_sta_info(hw_to_local(hw), addr, sta, nxt) {
+ if (localaddr &&
+ compare_ether_addr(sta->sdata->vif.addr, localaddr) != 0)
+ continue;
if (!sta->uploaded)
return NULL;
return &sta->sta;
@@ -852,7 +859,7 @@ struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw,
return NULL;
}
-EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_hw);
+EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_ifaddr);
struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_vif *vif,
const u8 *addr)
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 571b32bfc54c..dd85006c4fe8 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -58,6 +58,7 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
info->control.vif = &sta->sdata->vif;
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING |
IEEE80211_TX_INTFL_RETRANSMISSION;
+ info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS;
sta->tx_filtered_count++;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 737f4267c335..aba025d748e9 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -895,26 +895,34 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
- enum ieee80211_band band)
+ enum ieee80211_band band, u32 rate_mask,
+ u8 channel)
{
struct ieee80211_supported_band *sband;
u8 *pos;
size_t offset = 0, noffset;
int supp_rates_len, i;
+ u8 rates[32];
+ int num_rates;
+ int ext_rates_len;
sband = local->hw.wiphy->bands[band];
pos = buffer;
- supp_rates_len = min_t(int, sband->n_bitrates, 8);
+ num_rates = 0;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((BIT(i) & rate_mask) == 0)
+ continue; /* skip rate */
+ rates[num_rates++] = (u8) (sband->bitrates[i].bitrate / 5);
+ }
+
+ supp_rates_len = min_t(int, num_rates, 8);
*pos++ = WLAN_EID_SUPP_RATES;
*pos++ = supp_rates_len;
-
- for (i = 0; i < supp_rates_len; i++) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
+ memcpy(pos, rates, supp_rates_len);
+ pos += supp_rates_len;
/* insert "request information" if in custom IEs */
if (ie && ie_len) {
@@ -932,14 +940,18 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
offset = noffset;
}
- if (sband->n_bitrates > i) {
+ ext_rates_len = num_rates - supp_rates_len;
+ if (ext_rates_len > 0) {
*pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = sband->n_bitrates - i;
+ *pos++ = ext_rates_len;
+ memcpy(pos, rates + supp_rates_len, ext_rates_len);
+ pos += ext_rates_len;
+ }
- for (; i < sband->n_bitrates; i++) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
+ if (channel && sband->band == IEEE80211_BAND_2GHZ) {
+ *pos++ = WLAN_EID_DS_PARAMS;
+ *pos++ = 1;
+ *pos++ = channel;
}
/* insert custom IEs that go before HT */
@@ -1008,6 +1020,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
struct ieee80211_mgmt *mgmt;
size_t buf_len;
u8 *buf;
+ u8 chan;
/* FIXME: come up with a proper value */
buf = kmalloc(200 + ie_len, GFP_KERNEL);
@@ -1017,8 +1030,14 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
return;
}
+ chan = ieee80211_frequency_to_channel(
+ local->hw.conf.channel->center_freq);
+
buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len,
- local->hw.conf.channel->band);
+ local->hw.conf.channel->band,
+ sdata->rc_rateidx_mask
+ [local->hw.conf.channel->band],
+ chan);
skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
ssid, ssid_len,
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 43882b36da55..bee230d8fd11 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -117,7 +117,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
key = &rx->key->conf.key[key_offset];
michael_mic(key, hdr, data, data_len, mic);
if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
- if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_UNUSABLE;
mac80211_ev_michael_mic_failure(rx->sdata, rx->key->conf.keyidx,