struct sk_buff *skb = rx->skb;
if (unlikely(local->sta_hw_scanning))
- return ieee80211_sta_rx_scan(rx->dev, skb, rx->status);
+ return ieee80211_sta_rx_scan(rx->sdata, skb, rx->status);
if (unlikely(local->sta_sw_scanning)) {
/* drop all the other packets during a software scan anyway */
- if (ieee80211_sta_rx_scan(rx->dev, skb, rx->status)
+ if (ieee80211_sta_rx_scan(rx->sdata, skb, rx->status)
!= RX_QUEUED)
dev_kfree_skb(skb);
return RX_QUEUED;
if (ieee80211_is_data(hdr->frame_control) &&
is_multicast_ether_addr(hdr->addr1) &&
- mesh_rmc_check(hdr->addr4, msh_h_get(hdr, hdrlen), rx->dev))
+ mesh_rmc_check(hdr->addr4, msh_h_get(hdr, hdrlen), rx->sdata))
return RX_DROP_MONITOR;
#undef msh_h_get
{
struct ieee80211_hdr *hdr;
u16 sc;
+ __le16 fc;
unsigned int frag, seq;
struct ieee80211_fragment_entry *entry;
struct sk_buff *skb;
DECLARE_MAC_BUF(mac);
hdr = (struct ieee80211_hdr *)rx->skb->data;
+ fc = hdr->frame_control;
sc = le16_to_cpu(hdr->seq_ctrl);
frag = sc & IEEE80211_SCTL_FRAG;
- if (likely((!ieee80211_has_morefrags(hdr->frame_control) && frag == 0) ||
+ if (likely((!ieee80211_has_morefrags(fc) && frag == 0) ||
(rx->skb)->len < 24 ||
is_multicast_ether_addr(hdr->addr1))) {
/* not fragmented */
entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
rx->queue, &(rx->skb));
if (rx->key && rx->key->conf.alg == ALG_CCMP &&
- ieee80211_has_protected(hdr->frame_control)) {
+ ieee80211_has_protected(fc)) {
/* Store CCMP PN so that we can verify that the next
* fragment has a sequential PN value. */
entry->ccmp = 1;
memcpy(entry->last_pn, pn, CCMP_PN_LEN);
}
- skb_pull(rx->skb, ieee80211_hdrlen(hdr->frame_control));
+ skb_pull(rx->skb, ieee80211_hdrlen(fc));
__skb_queue_tail(&entry->skb_list, rx->skb);
entry->last_frag = frag;
entry->extra_len += rx->skb->len;
- if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
+ if (ieee80211_has_morefrags(fc)) {
rx->skb = NULL;
return RX_QUEUED;
}
struct sk_buff *skb;
int no_pending_pkts;
DECLARE_MAC_BUF(mac);
+ __le16 fc = ((struct ieee80211_hdr *)rx->skb->data)->frame_control;
- if (likely(!rx->sta ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
+ if (likely(!rx->sta || !ieee80211_is_pspoll(fc) ||
!(rx->flags & IEEE80211_RX_RA_MATCH)))
return RX_CONTINUE;
ieee80211_hdrlen(hdr->frame_control) - IEEE80211_QOS_CTL_LEN);
hdr = (struct ieee80211_hdr *)skb_pull(rx->skb, IEEE80211_QOS_CTL_LEN);
/* change frame type to non QOS */
- rx->fc &= ~IEEE80211_STYPE_QOS_DATA;
hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
return RX_CONTINUE;
}
static int
-ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx)
+ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
{
/*
* Pass through unencrypted frames if the hardware has
return 0;
/* Drop unencrypted frames if key is set. */
- if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
+ if (unlikely(!ieee80211_has_protected(fc) &&
+ !ieee80211_is_nullfunc(fc) &&
(rx->key || rx->sdata->drop_unencrypted)))
return -EACCES;
/*
* requires that rx->skb is a frame with ethernet header
*/
-static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
+static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
{
static const u8 pae_group_addr[ETH_ALEN] __aligned(2)
= { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
return true;
if (ieee80211_802_1x_port_control(rx) ||
- ieee80211_drop_unencrypted(rx))
+ ieee80211_drop_unencrypted(rx, fc))
return false;
return true;
{
struct net_device *dev = rx->dev;
struct ieee80211_local *local = rx->local;
- u16 fc, ethertype;
+ u16 ethertype;
u8 *payload;
struct sk_buff *skb = rx->skb, *frame = NULL;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ __le16 fc = hdr->frame_control;
const struct ethhdr *eth;
int remaining, err;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
DECLARE_MAC_BUF(mac);
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ if (unlikely(!ieee80211_is_data(fc)))
return RX_CONTINUE;
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ if (unlikely(!ieee80211_is_data_present(fc)))
return RX_DROP_MONITOR;
if (!(rx->flags & IEEE80211_RX_AMSDU))
memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
}
- if (!ieee80211_frame_allowed(rx)) {
+ if (!ieee80211_frame_allowed(rx, fc)) {
if (skb == frame) /* last frame */
return RX_DROP_UNUSABLE;
dev_kfree_skb(frame);
if (rx->flags & IEEE80211_RX_RA_MATCH) {
if (!mesh_hdr->ttl)
- IEEE80211_IFSTA_MESH_CTR_INC(&rx->sdata->u.sta,
+ IEEE80211_IFSTA_MESH_CTR_INC(&rx->sdata->u.mesh,
dropped_frames_ttl);
else {
struct ieee80211_hdr *fwd_hdr;
ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
{
struct net_device *dev = rx->dev;
- u16 fc;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ __le16 fc = hdr->frame_control;
int err;
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ if (unlikely(!ieee80211_is_data(hdr->frame_control)))
return RX_CONTINUE;
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
return RX_DROP_MONITOR;
err = ieee80211_data_to_8023(rx);
if (unlikely(err))
return RX_DROP_UNUSABLE;
- if (!ieee80211_frame_allowed(rx))
+ if (!ieee80211_frame_allowed(rx, fc))
return RX_DROP_MONITOR;
rx->skb->dev = dev;
}
static ieee80211_rx_result debug_noinline
+ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
+ int len = rx->skb->len;
+
+ if (!ieee80211_is_action(mgmt->frame_control))
+ return RX_CONTINUE;
+
+ if (!rx->sta)
+ return RX_DROP_MONITOR;
+
+ if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ return RX_DROP_MONITOR;
+
+ /* all categories we currently handle have action_code */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ return RX_DROP_MONITOR;
+
+ /*
+ * FIXME: revisit this, I'm sure we should handle most
+ * of these frames in other modes as well!
+ */
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
+ return RX_DROP_MONITOR;
+
+ switch (mgmt->u.action.category) {
+ case WLAN_CATEGORY_BACK:
+ switch (mgmt->u.action.u.addba_req.action_code) {
+ case WLAN_ACTION_ADDBA_REQ:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.addba_req)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_addba_request(local, rx->sta, mgmt, len);
+ break;
+ case WLAN_ACTION_ADDBA_RESP:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.addba_resp)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_addba_resp(local, rx->sta, mgmt, len);
+ break;
+ case WLAN_ACTION_DELBA:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.delba)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_delba(sdata, rx->sta, mgmt, len);
+ break;
+ }
+ break;
+ case WLAN_CATEGORY_SPECTRUM_MGMT:
+ if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
+ return RX_DROP_MONITOR;
+ switch (mgmt->u.action.u.measurement.action_code) {
+ case WLAN_ACTION_SPCT_MSR_REQ:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.measurement)))
+ return RX_DROP_MONITOR;
+ ieee80211_process_measurement_req(sdata, mgmt, len);
+ break;
+ }
+ break;
+ default:
+ return RX_CONTINUE;
+ }
+
+ rx->sta->rx_packets++;
+ dev_kfree_skb(rx->skb);
+ return RX_QUEUED;
+}
+
+static ieee80211_rx_result debug_noinline
ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
if (!(rx->flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_MONITOR;
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS ||
- sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->status);
- else
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ return ieee80211_mesh_rx_mgmt(sdata, rx->skb, rx->status);
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
return RX_DROP_MONITOR;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
+ return RX_DROP_MONITOR;
+
+ ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
return RX_QUEUED;
}
!ieee80211_is_auth(hdr->frame_control))
goto ignore;
- mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr);
+ mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr);
ignore:
dev_kfree_skb(rx->skb);
rx->skb = NULL;
CALL_RXH(ieee80211_rx_h_mesh_fwding);
CALL_RXH(ieee80211_rx_h_data)
CALL_RXH(ieee80211_rx_h_ctrl)
+ CALL_RXH(ieee80211_rx_h_action)
CALL_RXH(ieee80211_rx_h_mgmt)
#undef CALL_RXH
if (!bssid)
return 0;
if (ieee80211_is_beacon(hdr->frame_control)) {
- if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata->dev,
- rx->skb, bssid, hdr->addr2,
- BIT(rx->status->rate_idx));
return 1;
}
else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
return 0;
rx->flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
+ rx->sta = ieee80211_ibss_add_sta(sdata, rx->skb,
bssid, hdr->addr2,
BIT(rx->status->rate_idx));
break;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr;
struct ieee80211_rx_data rx;
- u16 type;
int prepares;
struct ieee80211_sub_if_data *prev = NULL;
struct sk_buff *skb_new;
u8 *bssid;
- hdr = (struct ieee80211_hdr *) skb->data;
+ hdr = (struct ieee80211_hdr *)skb->data;
memset(&rx, 0, sizeof(rx));
rx.skb = skb;
rx.local = local;
rx.status = status;
rx.rate = rate;
- rx.fc = le16_to_cpu(hdr->frame_control);
- type = rx.fc & IEEE80211_FCTL_FTYPE;
- if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
+ if (ieee80211_is_data(hdr->frame_control) || ieee80211_is_mgmt(hdr->frame_control))
local->dot11ReceivedFragmentCount++;
rx.sta = sta_info_get(local, hdr->addr2);
prev->dev->name);
continue;
}
- rx.fc = le16_to_cpu(hdr->frame_control);
ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
prev = sdata;
}
- if (prev) {
- rx.fc = le16_to_cpu(hdr->frame_control);
+ if (prev)
ieee80211_invoke_rx_handlers(prev, &rx, skb);
- } else
+ else
dev_kfree_skb(skb);
}
/* if this mpdu is fragmented - terminate rx aggregation session */
sc = le16_to_cpu(hdr->seq_ctrl);
if (sc & IEEE80211_SCTL_FRAG) {
- ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr,
+ ieee80211_sta_stop_rx_ba_session(sta->sdata, sta->addr,
tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP);
ret = 1;
goto end_reorder;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff