#include <net/rtnetlink.h>
#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
+#include "mesh.h"
#include "wme.h"
/* privid for wiphys to determine whether they belong to us or not */
/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] =
+const unsigned char rfc1042_header[] __aligned(2) =
{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] =
+const unsigned char bridge_tunnel_header[] __aligned(2) =
{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-static int rate_list_match(const int *rate_list, int rate)
-{
- int i;
-
- if (!rate_list)
- return 0;
-
- for (i = 0; rate_list[i] >= 0; i++)
- if (rate_list[i] == rate)
- return 1;
-
- return 0;
-}
-
-void ieee80211_prepare_rates(struct ieee80211_local *local,
- struct ieee80211_hw_mode *mode)
-{
- int i;
-
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
-
- rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
- IEEE80211_RATE_BASIC);
-
- if (local->supp_rates[mode->mode]) {
- if (!rate_list_match(local->supp_rates[mode->mode],
- rate->rate))
- continue;
- }
-
- rate->flags |= IEEE80211_RATE_SUPPORTED;
-
- /* Use configured basic rate set if it is available. If not,
- * use defaults that are sane for most cases. */
- if (local->basic_rates[mode->mode]) {
- if (rate_list_match(local->basic_rates[mode->mode],
- rate->rate))
- rate->flags |= IEEE80211_RATE_BASIC;
- } else switch (mode->mode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10 || rate->rate == 20)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case NUM_IEEE80211_MODES:
- /* not useful */
- break;
- }
-
- /* Set ERP and MANDATORY flags based on phymode */
- switch (mode->mode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110 ||
- rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case NUM_IEEE80211_MODES:
- /* not useful */
- break;
- }
- if (ieee80211_is_erp_rate(mode->mode, rate->rate))
- rate->flags |= IEEE80211_RATE_ERP;
- }
-}
-
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
enum ieee80211_if_types type)
{
- u16 fc;
+ __le16 fc = hdr->frame_control;
/* drop ACK/CTS frames and incorrect hdr len (ctrl) */
if (len < 16)
return NULL;
- fc = le16_to_cpu(hdr->frame_control);
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
+ if (ieee80211_is_data(fc)) {
if (len < 24) /* drop incorrect hdr len (data) */
return NULL;
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- return hdr->addr1;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+
+ if (ieee80211_has_a4(fc))
return NULL;
- case IEEE80211_FCTL_FROMDS:
+ if (ieee80211_has_tods(fc))
+ return hdr->addr1;
+ if (ieee80211_has_fromds(fc))
return hdr->addr2;
- case 0:
- return hdr->addr3;
- }
- break;
- case IEEE80211_FTYPE_MGMT:
+
+ return hdr->addr3;
+ }
+
+ if (ieee80211_is_mgmt(fc)) {
if (len < 24) /* drop incorrect hdr len (mgmt) */
return NULL;
return hdr->addr3;
- case IEEE80211_FTYPE_CTL:
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
+ }
+
+ if (ieee80211_is_ctl(fc)) {
+ if(ieee80211_is_pspoll(fc))
return hdr->addr1;
- else if ((fc & IEEE80211_FCTL_STYPE) ==
- IEEE80211_STYPE_BACK_REQ) {
+
+ if (ieee80211_is_back_req(fc)) {
switch (type) {
case IEEE80211_IF_TYPE_STA:
return hdr->addr2;
case IEEE80211_IF_TYPE_VLAN:
return hdr->addr1;
default:
- return NULL;
+ break; /* fall through to the return */
}
}
- else
- return NULL;
}
return NULL;
}
EXPORT_SYMBOL(ieee80211_get_hdrlen);
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+unsigned int ieee80211_hdrlen(__le16 fc)
{
- const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
- int hdrlen;
+ unsigned int hdrlen = 24;
+
+ if (ieee80211_is_data(fc)) {
+ if (ieee80211_has_a4(fc))
+ hdrlen = 30;
+ if (ieee80211_is_data_qos(fc))
+ hdrlen += IEEE80211_QOS_CTL_LEN;
+ goto out;
+ }
+
+ if (ieee80211_is_ctl(fc)) {
+ /*
+ * ACK and CTS are 10 bytes, all others 16. To see how
+ * to get this condition consider
+ * subtype mask: 0b0000000011110000 (0x00F0)
+ * ACK subtype: 0b0000000011010000 (0x00D0)
+ * CTS subtype: 0b0000000011000000 (0x00C0)
+ * bits that matter: ^^^ (0x00E0)
+ * value of those: 0b0000000011000000 (0x00C0)
+ */
+ if ((fc & cpu_to_le16(0x00E0)) == cpu_to_le16(0x00C0))
+ hdrlen = 10;
+ else
+ hdrlen = 16;
+ }
+out:
+ return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_hdrlen);
+
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *)skb->data;
+ unsigned int hdrlen;
if (unlikely(skb->len < 10))
return 0;
- hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (unlikely(hdrlen > skb->len))
return 0;
return hdrlen;
}
EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
+int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+{
+ int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
+ /* 7.1.3.5a.2 */
+ switch (ae) {
+ case 0:
+ return 6;
+ case 1:
+ return 12;
+ case 2:
+ return 18;
+ case 3:
+ return 24;
+ default:
+ return 6;
+ }
+}
+
+void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- if (tx->u.tx.extra_frag) {
+ if (tx->extra_frag) {
struct ieee80211_hdr *fhdr;
int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ for (i = 0; i < tx->num_extra_frag; i++) {
fhdr = (struct ieee80211_hdr *)
- tx->u.tx.extra_frag[i]->data;
+ tx->extra_frag[i]->data;
fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
}
}
* DIV_ROUND_UP() operations.
*/
- if (local->hw.conf.phymode == MODE_IEEE80211A || erp) {
+ if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ || erp) {
/*
* OFDM:
*
/* Exported duration function for driver use */
__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- size_t frame_len, int rate)
+ size_t frame_len,
+ struct ieee80211_rate *rate)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
u16 dur;
int erp;
- erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
- dur = ieee80211_frame_duration(local, frame_len, rate, erp,
+ erp = 0;
+ if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = rate->flags & IEEE80211_RATE_ERP_G;
+
+ dur = ieee80211_frame_duration(local, frame_len, rate->bitrate, erp,
sdata->bss_conf.use_short_preamble);
return cpu_to_le16(dur);
__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
+ const struct ieee80211_tx_info *frame_txctl)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
bool short_preamble;
int erp;
u16 dur;
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
short_preamble = sdata->bss_conf.use_short_preamble;
- rate = frame_txctl->rts_rate;
- erp = !!(rate->flags & IEEE80211_RATE_ERP);
+ rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
+
+ erp = 0;
+ if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = rate->flags & IEEE80211_RATE_ERP_G;
/* CTS duration */
- dur = ieee80211_frame_duration(local, 10, rate->rate,
+ dur = ieee80211_frame_duration(local, 10, rate->bitrate,
erp, short_preamble);
/* Data frame duration */
- dur += ieee80211_frame_duration(local, frame_len, rate->rate,
+ dur += ieee80211_frame_duration(local, frame_len, rate->bitrate,
erp, short_preamble);
/* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->rate,
+ dur += ieee80211_frame_duration(local, 10, rate->bitrate,
erp, short_preamble);
return cpu_to_le16(dur);
__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
+ const struct ieee80211_tx_info *frame_txctl)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
bool short_preamble;
int erp;
u16 dur;
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
short_preamble = sdata->bss_conf.use_short_preamble;
- rate = frame_txctl->rts_rate;
- erp = !!(rate->flags & IEEE80211_RATE_ERP);
+ rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
+ erp = 0;
+ if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = rate->flags & IEEE80211_RATE_ERP_G;
/* Data frame duration */
- dur = ieee80211_frame_duration(local, frame_len, rate->rate,
+ dur = ieee80211_frame_duration(local, frame_len, rate->bitrate,
erp, short_preamble);
- if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
+ if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) {
/* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->rate,
+ dur += ieee80211_frame_duration(local, 10, rate->bitrate,
erp, short_preamble);
}
}
EXPORT_SYMBOL(ieee80211_ctstoself_duration);
-struct ieee80211_rate *
-ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
-{
- struct ieee80211_hw_mode *mode;
- int r;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode != phymode)
- continue;
- for (r = 0; r < mode->num_rates; r++) {
- struct ieee80211_rate *rate = &mode->rates[r];
- if (rate->val == hw_rate ||
- (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
- rate->val2 == hw_rate))
- return rate;
- }
- }
-
- return NULL;
-}
-
void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
{
struct ieee80211_local *local = hw_to_local(hw);
- if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue])) {
- if (test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue]))
- tasklet_schedule(&local->tx_pending_tasklet);
- else
- if (!ieee80211_qdisc_installed(local->mdev)) {
- if (queue == 0)
- netif_wake_queue(local->mdev);
- } else
- __netif_schedule(local->mdev);
+ if (test_bit(queue, local->queues_pending)) {
+ tasklet_schedule(&local->tx_pending_tasklet);
+ } else {
+ if (ieee80211_is_multiqueue(local)) {
+ netif_wake_subqueue(local->mdev, queue);
+ } else {
+ WARN_ON(queue != 0);
+ netif_wake_queue(local->mdev);
+ }
}
}
EXPORT_SYMBOL(ieee80211_wake_queue);
{
struct ieee80211_local *local = hw_to_local(hw);
- if (!ieee80211_qdisc_installed(local->mdev) && queue == 0)
+ if (ieee80211_is_multiqueue(local)) {
+ netif_stop_subqueue(local->mdev, queue);
+ } else {
+ WARN_ON(queue != 0);
netif_stop_queue(local->mdev);
- set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
+ }
}
EXPORT_SYMBOL(ieee80211_stop_queue);
-void ieee80211_start_queues(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- int i;
-
- for (i = 0; i < local->hw.queues; i++)
- clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]);
- if (!ieee80211_qdisc_installed(local->mdev))
- netif_start_queue(local->mdev);
-}
-EXPORT_SYMBOL(ieee80211_start_queues);
-
void ieee80211_stop_queues(struct ieee80211_hw *hw)
{
int i;
- for (i = 0; i < hw->queues; i++)
+ for (i = 0; i < ieee80211_num_queues(hw); i++)
ieee80211_stop_queue(hw, i);
}
EXPORT_SYMBOL(ieee80211_stop_queues);
{
int i;
- for (i = 0; i < hw->queues; i++)
+ for (i = 0; i < hw->queues + hw->ampdu_queues; i++)
ieee80211_wake_queue(hw, i);
}
EXPORT_SYMBOL(ieee80211_wake_queues);
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata;
+ rtnl_lock();
+
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ switch (sdata->vif.type) {
+ case IEEE80211_IF_TYPE_INVALID:
+ case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_VLAN:
+ continue;
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ case IEEE80211_IF_TYPE_WDS:
+ case IEEE80211_IF_TYPE_MESH_POINT:
+ break;
+ }
+ if (sdata->dev == local->mdev)
+ continue;
+ if (netif_running(sdata->dev))
+ iterator(data, sdata->dev->dev_addr,
+ &sdata->vif);
+ }
+
+ rtnl_unlock();
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+
+void ieee80211_iterate_active_interfaces_atomic(
+ struct ieee80211_hw *hw,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
case IEEE80211_IF_TYPE_WDS:
+ case IEEE80211_IF_TYPE_MESH_POINT:
break;
}
if (sdata->dev == local->mdev)
rcu_read_unlock();
}
-EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
projects / linux-2.6 / blobdiff