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-rw-r--r--net/mac80211/main.c426
1 files changed, 73 insertions, 353 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 797f53942e5f..b887e484ae04 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -9,7 +9,6 @@
9 */ 9 */
10 10
11#include <net/mac80211.h> 11#include <net/mac80211.h>
12#include <net/ieee80211_radiotap.h>
13#include <linux/module.h> 12#include <linux/module.h>
14#include <linux/init.h> 13#include <linux/init.h>
15#include <linux/netdevice.h> 14#include <linux/netdevice.h>
@@ -18,7 +17,6 @@
18#include <linux/skbuff.h> 17#include <linux/skbuff.h>
19#include <linux/etherdevice.h> 18#include <linux/etherdevice.h>
20#include <linux/if_arp.h> 19#include <linux/if_arp.h>
21#include <linux/wireless.h>
22#include <linux/rtnetlink.h> 20#include <linux/rtnetlink.h>
23#include <linux/bitmap.h> 21#include <linux/bitmap.h>
24#include <linux/pm_qos_params.h> 22#include <linux/pm_qos_params.h>
@@ -30,25 +28,15 @@
30#include "rate.h" 28#include "rate.h"
31#include "mesh.h" 29#include "mesh.h"
32#include "wep.h" 30#include "wep.h"
33#include "wme.h"
34#include "aes_ccm.h"
35#include "led.h" 31#include "led.h"
36#include "cfg.h" 32#include "cfg.h"
37#include "debugfs.h" 33#include "debugfs.h"
38#include "debugfs_netdev.h"
39 34
40/*
41 * For seeing transmitted packets on monitor interfaces
42 * we have a radiotap header too.
43 */
44struct ieee80211_tx_status_rtap_hdr {
45 struct ieee80211_radiotap_header hdr;
46 u8 rate;
47 u8 padding_for_rate;
48 __le16 tx_flags;
49 u8 data_retries;
50} __attribute__ ((packed));
51 35
36bool ieee80211_disable_40mhz_24ghz;
37module_param(ieee80211_disable_40mhz_24ghz, bool, 0644);
38MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz,
39 "Disable 40MHz support in the 2.4GHz band");
52 40
53void ieee80211_configure_filter(struct ieee80211_local *local) 41void ieee80211_configure_filter(struct ieee80211_local *local)
54{ 42{
@@ -118,6 +106,9 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
118 if (scan_chan) { 106 if (scan_chan) {
119 chan = scan_chan; 107 chan = scan_chan;
120 channel_type = NL80211_CHAN_NO_HT; 108 channel_type = NL80211_CHAN_NO_HT;
109 } else if (local->tmp_channel) {
110 chan = scan_chan = local->tmp_channel;
111 channel_type = local->tmp_channel_type;
121 } else { 112 } else {
122 chan = local->oper_channel; 113 chan = local->oper_channel;
123 channel_type = local->oper_channel_type; 114 channel_type = local->oper_channel_type;
@@ -130,6 +121,18 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
130 changed |= IEEE80211_CONF_CHANGE_CHANNEL; 121 changed |= IEEE80211_CONF_CHANGE_CHANNEL;
131 } 122 }
132 123
124 if (!conf_is_ht(&local->hw.conf)) {
125 /*
126 * mac80211.h documents that this is only valid
127 * when the channel is set to an HT type, and
128 * that otherwise STATIC is used.
129 */
130 local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC;
131 } else if (local->hw.conf.smps_mode != local->smps_mode) {
132 local->hw.conf.smps_mode = local->smps_mode;
133 changed |= IEEE80211_CONF_CHANGE_SMPS;
134 }
135
133 if (scan_chan) 136 if (scan_chan)
134 power = chan->max_power; 137 power = chan->max_power;
135 else 138 else
@@ -189,7 +192,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
189 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 192 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
190 sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; 193 sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid;
191 else if (sdata->vif.type == NL80211_IFTYPE_AP) 194 else if (sdata->vif.type == NL80211_IFTYPE_AP)
192 sdata->vif.bss_conf.bssid = sdata->dev->dev_addr; 195 sdata->vif.bss_conf.bssid = sdata->vif.addr;
193 else if (ieee80211_vif_is_mesh(&sdata->vif)) { 196 else if (ieee80211_vif_is_mesh(&sdata->vif)) {
194 sdata->vif.bss_conf.bssid = zero; 197 sdata->vif.bss_conf.bssid = zero;
195 } else { 198 } else {
@@ -211,7 +214,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
211 } 214 }
212 215
213 if (changed & BSS_CHANGED_BEACON_ENABLED) { 216 if (changed & BSS_CHANGED_BEACON_ENABLED) {
214 if (local->quiescing || !netif_running(sdata->dev) || 217 if (local->quiescing || !ieee80211_sdata_running(sdata) ||
215 test_bit(SCAN_SW_SCANNING, &local->scanning)) { 218 test_bit(SCAN_SW_SCANNING, &local->scanning)) {
216 sdata->vif.bss_conf.enable_beacon = false; 219 sdata->vif.bss_conf.enable_beacon = false;
217 } else { 220 } else {
@@ -222,11 +225,11 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
222 switch (sdata->vif.type) { 225 switch (sdata->vif.type) {
223 case NL80211_IFTYPE_AP: 226 case NL80211_IFTYPE_AP:
224 sdata->vif.bss_conf.enable_beacon = 227 sdata->vif.bss_conf.enable_beacon =
225 !!rcu_dereference(sdata->u.ap.beacon); 228 !!sdata->u.ap.beacon;
226 break; 229 break;
227 case NL80211_IFTYPE_ADHOC: 230 case NL80211_IFTYPE_ADHOC:
228 sdata->vif.bss_conf.enable_beacon = 231 sdata->vif.bss_conf.enable_beacon =
229 !!rcu_dereference(sdata->u.ibss.presp); 232 !!sdata->u.ibss.presp;
230 break; 233 break;
231 case NL80211_IFTYPE_MESH_POINT: 234 case NL80211_IFTYPE_MESH_POINT:
232 sdata->vif.bss_conf.enable_beacon = true; 235 sdata->vif.bss_conf.enable_beacon = true;
@@ -239,8 +242,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
239 } 242 }
240 } 243 }
241 244
242 drv_bss_info_changed(local, &sdata->vif, 245 drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed);
243 &sdata->vif.bss_conf, changed);
244} 246}
245 247
246u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) 248u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -253,28 +255,6 @@ u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
253 BSS_CHANGED_ERP_SLOT; 255 BSS_CHANGED_ERP_SLOT;
254} 256}
255 257
256void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
257 struct sk_buff *skb)
258{
259 struct ieee80211_local *local = hw_to_local(hw);
260 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
261 int tmp;
262
263 skb->pkt_type = IEEE80211_TX_STATUS_MSG;
264 skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ?
265 &local->skb_queue : &local->skb_queue_unreliable, skb);
266 tmp = skb_queue_len(&local->skb_queue) +
267 skb_queue_len(&local->skb_queue_unreliable);
268 while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
269 (skb = skb_dequeue(&local->skb_queue_unreliable))) {
270 dev_kfree_skb_irq(skb);
271 tmp--;
272 I802_DEBUG_INC(local->tx_status_drop);
273 }
274 tasklet_schedule(&local->tasklet);
275}
276EXPORT_SYMBOL(ieee80211_tx_status_irqsafe);
277
278static void ieee80211_tasklet_handler(unsigned long data) 258static void ieee80211_tasklet_handler(unsigned long data)
279{ 259{
280 struct ieee80211_local *local = (struct ieee80211_local *) data; 260 struct ieee80211_local *local = (struct ieee80211_local *) data;
@@ -296,14 +276,14 @@ static void ieee80211_tasklet_handler(unsigned long data)
296 break; 276 break;
297 case IEEE80211_DELBA_MSG: 277 case IEEE80211_DELBA_MSG:
298 ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 278 ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
299 ieee80211_stop_tx_ba_cb(local_to_hw(local), 279 ieee80211_stop_tx_ba_cb(ra_tid->vif, ra_tid->ra,
300 ra_tid->ra, ra_tid->tid); 280 ra_tid->tid);
301 dev_kfree_skb(skb); 281 dev_kfree_skb(skb);
302 break; 282 break;
303 case IEEE80211_ADDBA_MSG: 283 case IEEE80211_ADDBA_MSG:
304 ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 284 ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
305 ieee80211_start_tx_ba_cb(local_to_hw(local), 285 ieee80211_start_tx_ba_cb(ra_tid->vif, ra_tid->ra,
306 ra_tid->ra, ra_tid->tid); 286 ra_tid->tid);
307 dev_kfree_skb(skb); 287 dev_kfree_skb(skb);
308 break ; 288 break ;
309 default: 289 default:
@@ -315,299 +295,6 @@ static void ieee80211_tasklet_handler(unsigned long data)
315 } 295 }
316} 296}
317 297
318static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
319 struct sta_info *sta,
320 struct sk_buff *skb)
321{
322 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
323
324 /*
325 * XXX: This is temporary!
326 *
327 * The problem here is that when we get here, the driver will
328 * quite likely have pretty much overwritten info->control by
329 * using info->driver_data or info->rate_driver_data. Thus,
330 * when passing out the frame to the driver again, we would be
331 * passing completely bogus data since the driver would then
332 * expect a properly filled info->control. In mac80211 itself
333 * the same problem occurs, since we need info->control.vif
334 * internally.
335 *
336 * To fix this, we should send the frame through TX processing
337 * again. However, it's not that simple, since the frame will
338 * have been software-encrypted (if applicable) already, and
339 * encrypting it again doesn't do much good. So to properly do
340 * that, we not only have to skip the actual 'raw' encryption
341 * (key selection etc. still has to be done!) but also the
342 * sequence number assignment since that impacts the crypto
343 * encapsulation, of course.
344 *
345 * Hence, for now, fix the bug by just dropping the frame.
346 */
347 goto drop;
348
349 sta->tx_filtered_count++;
350
351 /*
352 * Clear the TX filter mask for this STA when sending the next
353 * packet. If the STA went to power save mode, this will happen
354 * when it wakes up for the next time.
355 */
356 set_sta_flags(sta, WLAN_STA_CLEAR_PS_FILT);
357
358 /*
359 * This code races in the following way:
360 *
361 * (1) STA sends frame indicating it will go to sleep and does so
362 * (2) hardware/firmware adds STA to filter list, passes frame up
363 * (3) hardware/firmware processes TX fifo and suppresses a frame
364 * (4) we get TX status before having processed the frame and
365 * knowing that the STA has gone to sleep.
366 *
367 * This is actually quite unlikely even when both those events are
368 * processed from interrupts coming in quickly after one another or
369 * even at the same time because we queue both TX status events and
370 * RX frames to be processed by a tasklet and process them in the
371 * same order that they were received or TX status last. Hence, there
372 * is no race as long as the frame RX is processed before the next TX
373 * status, which drivers can ensure, see below.
374 *
375 * Note that this can only happen if the hardware or firmware can
376 * actually add STAs to the filter list, if this is done by the
377 * driver in response to set_tim() (which will only reduce the race
378 * this whole filtering tries to solve, not completely solve it)
379 * this situation cannot happen.
380 *
381 * To completely solve this race drivers need to make sure that they
382 * (a) don't mix the irq-safe/not irq-safe TX status/RX processing
383 * functions and
384 * (b) always process RX events before TX status events if ordering
385 * can be unknown, for example with different interrupt status
386 * bits.
387 */
388 if (test_sta_flags(sta, WLAN_STA_PS) &&
389 skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
390 skb_queue_tail(&sta->tx_filtered, skb);
391 return;
392 }
393
394 if (!test_sta_flags(sta, WLAN_STA_PS) &&
395 !(info->flags & IEEE80211_TX_INTFL_RETRIED)) {
396 /* Software retry the packet once */
397 info->flags |= IEEE80211_TX_INTFL_RETRIED;
398 ieee80211_add_pending_skb(local, skb);
399 return;
400 }
401
402 drop:
403#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
404 if (net_ratelimit())
405 printk(KERN_DEBUG "%s: dropped TX filtered frame, "
406 "queue_len=%d PS=%d @%lu\n",
407 wiphy_name(local->hw.wiphy),
408 skb_queue_len(&sta->tx_filtered),
409 !!test_sta_flags(sta, WLAN_STA_PS), jiffies);
410#endif
411 dev_kfree_skb(skb);
412}
413
414void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
415{
416 struct sk_buff *skb2;
417 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
418 struct ieee80211_local *local = hw_to_local(hw);
419 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
420 u16 frag, type;
421 __le16 fc;
422 struct ieee80211_supported_band *sband;
423 struct ieee80211_tx_status_rtap_hdr *rthdr;
424 struct ieee80211_sub_if_data *sdata;
425 struct net_device *prev_dev = NULL;
426 struct sta_info *sta;
427 int retry_count = -1, i;
428
429 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
430 /* the HW cannot have attempted that rate */
431 if (i >= hw->max_rates) {
432 info->status.rates[i].idx = -1;
433 info->status.rates[i].count = 0;
434 }
435
436 retry_count += info->status.rates[i].count;
437 }
438 if (retry_count < 0)
439 retry_count = 0;
440
441 rcu_read_lock();
442
443 sband = local->hw.wiphy->bands[info->band];
444
445 sta = sta_info_get(local, hdr->addr1);
446
447 if (sta) {
448 if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
449 test_sta_flags(sta, WLAN_STA_PS)) {
450 /*
451 * The STA is in power save mode, so assume
452 * that this TX packet failed because of that.
453 */
454 ieee80211_handle_filtered_frame(local, sta, skb);
455 rcu_read_unlock();
456 return;
457 }
458
459 fc = hdr->frame_control;
460
461 if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
462 (ieee80211_is_data_qos(fc))) {
463 u16 tid, ssn;
464 u8 *qc;
465
466 qc = ieee80211_get_qos_ctl(hdr);
467 tid = qc[0] & 0xf;
468 ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
469 & IEEE80211_SCTL_SEQ);
470 ieee80211_send_bar(sta->sdata, hdr->addr1,
471 tid, ssn);
472 }
473
474 if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
475 ieee80211_handle_filtered_frame(local, sta, skb);
476 rcu_read_unlock();
477 return;
478 } else {
479 if (!(info->flags & IEEE80211_TX_STAT_ACK))
480 sta->tx_retry_failed++;
481 sta->tx_retry_count += retry_count;
482 }
483
484 rate_control_tx_status(local, sband, sta, skb);
485 if (ieee80211_vif_is_mesh(&sta->sdata->vif))
486 ieee80211s_update_metric(local, sta, skb);
487 }
488
489 rcu_read_unlock();
490
491 ieee80211_led_tx(local, 0);
492
493 /* SNMP counters
494 * Fragments are passed to low-level drivers as separate skbs, so these
495 * are actually fragments, not frames. Update frame counters only for
496 * the first fragment of the frame. */
497
498 frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
499 type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
500
501 if (info->flags & IEEE80211_TX_STAT_ACK) {
502 if (frag == 0) {
503 local->dot11TransmittedFrameCount++;
504 if (is_multicast_ether_addr(hdr->addr1))
505 local->dot11MulticastTransmittedFrameCount++;
506 if (retry_count > 0)
507 local->dot11RetryCount++;
508 if (retry_count > 1)
509 local->dot11MultipleRetryCount++;
510 }
511
512 /* This counter shall be incremented for an acknowledged MPDU
513 * with an individual address in the address 1 field or an MPDU
514 * with a multicast address in the address 1 field of type Data
515 * or Management. */
516 if (!is_multicast_ether_addr(hdr->addr1) ||
517 type == IEEE80211_FTYPE_DATA ||
518 type == IEEE80211_FTYPE_MGMT)
519 local->dot11TransmittedFragmentCount++;
520 } else {
521 if (frag == 0)
522 local->dot11FailedCount++;
523 }
524
525 /* this was a transmitted frame, but now we want to reuse it */
526 skb_orphan(skb);
527
528 /*
529 * This is a bit racy but we can avoid a lot of work
530 * with this test...
531 */
532 if (!local->monitors && !local->cooked_mntrs) {
533 dev_kfree_skb(skb);
534 return;
535 }
536
537 /* send frame to monitor interfaces now */
538
539 if (skb_headroom(skb) < sizeof(*rthdr)) {
540 printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
541 dev_kfree_skb(skb);
542 return;
543 }
544
545 rthdr = (struct ieee80211_tx_status_rtap_hdr *)
546 skb_push(skb, sizeof(*rthdr));
547
548 memset(rthdr, 0, sizeof(*rthdr));
549 rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
550 rthdr->hdr.it_present =
551 cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
552 (1 << IEEE80211_RADIOTAP_DATA_RETRIES) |
553 (1 << IEEE80211_RADIOTAP_RATE));
554
555 if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
556 !is_multicast_ether_addr(hdr->addr1))
557 rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
558
559 /*
560 * XXX: Once radiotap gets the bitmap reset thing the vendor
561 * extensions proposal contains, we can actually report
562 * the whole set of tries we did.
563 */
564 if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
565 (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT))
566 rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
567 else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
568 rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
569 if (info->status.rates[0].idx >= 0 &&
570 !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS))
571 rthdr->rate = sband->bitrates[
572 info->status.rates[0].idx].bitrate / 5;
573
574 /* for now report the total retry_count */
575 rthdr->data_retries = retry_count;
576
577 /* XXX: is this sufficient for BPF? */
578 skb_set_mac_header(skb, 0);
579 skb->ip_summed = CHECKSUM_UNNECESSARY;
580 skb->pkt_type = PACKET_OTHERHOST;
581 skb->protocol = htons(ETH_P_802_2);
582 memset(skb->cb, 0, sizeof(skb->cb));
583
584 rcu_read_lock();
585 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
586 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
587 if (!netif_running(sdata->dev))
588 continue;
589
590 if (prev_dev) {
591 skb2 = skb_clone(skb, GFP_ATOMIC);
592 if (skb2) {
593 skb2->dev = prev_dev;
594 netif_rx(skb2);
595 }
596 }
597
598 prev_dev = sdata->dev;
599 }
600 }
601 if (prev_dev) {
602 skb->dev = prev_dev;
603 netif_rx(skb);
604 skb = NULL;
605 }
606 rcu_read_unlock();
607 dev_kfree_skb(skb);
608}
609EXPORT_SYMBOL(ieee80211_tx_status);
610
611static void ieee80211_restart_work(struct work_struct *work) 298static void ieee80211_restart_work(struct work_struct *work)
612{ 299{
613 struct ieee80211_local *local = 300 struct ieee80211_local *local =
@@ -630,6 +317,16 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
630} 317}
631EXPORT_SYMBOL(ieee80211_restart_hw); 318EXPORT_SYMBOL(ieee80211_restart_hw);
632 319
320static void ieee80211_recalc_smps_work(struct work_struct *work)
321{
322 struct ieee80211_local *local =
323 container_of(work, struct ieee80211_local, recalc_smps);
324
325 mutex_lock(&local->iflist_mtx);
326 ieee80211_recalc_smps(local, NULL);
327 mutex_unlock(&local->iflist_mtx);
328}
329
633struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, 330struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
634 const struct ieee80211_ops *ops) 331 const struct ieee80211_ops *ops)
635{ 332{
@@ -659,12 +356,12 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
659 if (!wiphy) 356 if (!wiphy)
660 return NULL; 357 return NULL;
661 358
662 wiphy->netnsok = true; 359 wiphy->flags |= WIPHY_FLAG_NETNS_OK |
360 WIPHY_FLAG_4ADDR_AP |
361 WIPHY_FLAG_4ADDR_STATION;
663 wiphy->privid = mac80211_wiphy_privid; 362 wiphy->privid = mac80211_wiphy_privid;
664 363
665 /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */ 364 wiphy->bss_priv_size = sizeof(struct ieee80211_bss);
666 wiphy->bss_priv_size = sizeof(struct ieee80211_bss) -
667 sizeof(struct cfg80211_bss);
668 365
669 local = wiphy_priv(wiphy); 366 local = wiphy_priv(wiphy);
670 367
@@ -687,6 +384,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
687 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 384 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
688 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 385 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
689 local->user_power_level = -1; 386 local->user_power_level = -1;
387 local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
388 local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
690 389
691 INIT_LIST_HEAD(&local->interfaces); 390 INIT_LIST_HEAD(&local->interfaces);
692 mutex_init(&local->iflist_mtx); 391 mutex_init(&local->iflist_mtx);
@@ -698,9 +397,13 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
698 397
699 INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); 398 INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
700 399
400 ieee80211_work_init(local);
401
701 INIT_WORK(&local->restart_work, ieee80211_restart_work); 402 INIT_WORK(&local->restart_work, ieee80211_restart_work);
702 403
703 INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); 404 INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter);
405 INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work);
406 local->smps_mode = IEEE80211_SMPS_OFF;
704 407
705 INIT_WORK(&local->dynamic_ps_enable_work, 408 INIT_WORK(&local->dynamic_ps_enable_work,
706 ieee80211_dynamic_ps_enable_work); 409 ieee80211_dynamic_ps_enable_work);
@@ -790,6 +493,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
790 else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) 493 else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
791 local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 494 local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
792 495
496 WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
497 && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK),
498 "U-APSD not supported with HW_PS_NULLFUNC_STACK\n");
499
793 /* 500 /*
794 * Calculate scan IE length -- we need this to alloc 501 * Calculate scan IE length -- we need this to alloc
795 * memory and to subtract from the driver limit. It 502 * memory and to subtract from the driver limit. It
@@ -844,13 +551,19 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
844 * and we need some headroom for passing the frame to monitor 551 * and we need some headroom for passing the frame to monitor
845 * interfaces, but never both at the same time. 552 * interfaces, but never both at the same time.
846 */ 553 */
554 BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM !=
555 sizeof(struct ieee80211_tx_status_rtap_hdr));
847 local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, 556 local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
848 sizeof(struct ieee80211_tx_status_rtap_hdr)); 557 sizeof(struct ieee80211_tx_status_rtap_hdr));
849 558
850 debugfs_hw_add(local); 559 debugfs_hw_add(local);
851 560
561 /*
562 * if the driver doesn't specify a max listen interval we
563 * use 5 which should be a safe default
564 */
852 if (local->hw.max_listen_interval == 0) 565 if (local->hw.max_listen_interval == 0)
853 local->hw.max_listen_interval = 1; 566 local->hw.max_listen_interval = 5;
854 567
855 local->hw.conf.listen_interval = local->hw.max_listen_interval; 568 local->hw.conf.listen_interval = local->hw.max_listen_interval;
856 569
@@ -901,6 +614,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
901 i++; 614 i++;
902 } 615 }
903 } 616 }
617 local->int_scan_req->n_channels = i;
904 618
905 local->network_latency_notifier.notifier_call = 619 local->network_latency_notifier.notifier_call =
906 ieee80211_max_network_latency; 620 ieee80211_max_network_latency;
@@ -923,7 +637,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
923 fail_wep: 637 fail_wep:
924 sta_info_stop(local); 638 sta_info_stop(local);
925 fail_sta_info: 639 fail_sta_info:
926 debugfs_hw_del(local);
927 destroy_workqueue(local->workqueue); 640 destroy_workqueue(local->workqueue);
928 fail_workqueue: 641 fail_workqueue:
929 wiphy_unregister(local->hw.wiphy); 642 wiphy_unregister(local->hw.wiphy);
@@ -959,10 +672,9 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
959 ieee80211_clear_tx_pending(local); 672 ieee80211_clear_tx_pending(local);
960 sta_info_stop(local); 673 sta_info_stop(local);
961 rate_control_deinitialize(local); 674 rate_control_deinitialize(local);
962 debugfs_hw_del(local);
963 675
964 if (skb_queue_len(&local->skb_queue) 676 if (skb_queue_len(&local->skb_queue) ||
965 || skb_queue_len(&local->skb_queue_unreliable)) 677 skb_queue_len(&local->skb_queue_unreliable))
966 printk(KERN_WARNING "%s: skb_queue not empty\n", 678 printk(KERN_WARNING "%s: skb_queue not empty\n",
967 wiphy_name(local->hw.wiphy)); 679 wiphy_name(local->hw.wiphy));
968 skb_queue_purge(&local->skb_queue); 680 skb_queue_purge(&local->skb_queue);
@@ -1002,11 +714,19 @@ static int __init ieee80211_init(void)
1002 714
1003 ret = rc80211_pid_init(); 715 ret = rc80211_pid_init();
1004 if (ret) 716 if (ret)
1005 return ret; 717 goto err_pid;
1006 718
1007 ieee80211_debugfs_netdev_init(); 719 ret = ieee80211_iface_init();
720 if (ret)
721 goto err_netdev;
1008 722
1009 return 0; 723 return 0;
724 err_netdev:
725 rc80211_pid_exit();
726 err_pid:
727 rc80211_minstrel_exit();
728
729 return ret;
1010} 730}
1011 731
1012static void __exit ieee80211_exit(void) 732static void __exit ieee80211_exit(void)
@@ -1023,7 +743,7 @@ static void __exit ieee80211_exit(void)
1023 if (mesh_allocated) 743 if (mesh_allocated)
1024 ieee80211s_stop(); 744 ieee80211s_stop();
1025 745
1026 ieee80211_debugfs_netdev_exit(); 746 ieee80211_iface_exit();
1027} 747}
1028 748
1029 749
generated by cgit v1.2.2 (git 2.25.0) at 2026-03-10 20:32:14 -0400