Blame view
net/mac80211/iface.c
35.8 KB
f0706e828 [MAC80211]: Add m... |
1 |
/* |
0d143fe1e mac80211: move re... |
2 3 |
* Interface handling (except master interface) * |
f0706e828 [MAC80211]: Add m... |
4 5 6 |
* Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2005-2006, Devicescape Software, Inc. * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> |
75636525f mac80211: revamp ... |
7 |
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net> |
f0706e828 [MAC80211]: Add m... |
8 9 10 11 12 |
* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ |
5a0e3ad6a include cleanup: ... |
13 |
#include <linux/slab.h> |
f0706e828 [MAC80211]: Add m... |
14 15 16 17 18 |
#include <linux/kernel.h> #include <linux/if_arp.h> #include <linux/netdevice.h> #include <linux/rtnetlink.h> #include <net/mac80211.h> |
cf0277e71 mac80211: fix skb... |
19 |
#include <net/ieee80211_radiotap.h> |
f0706e828 [MAC80211]: Add m... |
20 21 |
#include "ieee80211_i.h" #include "sta_info.h" |
e9f207f0f [MAC80211]: Add d... |
22 |
#include "debugfs_netdev.h" |
ee3858551 mac80211: mesh da... |
23 |
#include "mesh.h" |
0d143fe1e mac80211: move re... |
24 |
#include "led.h" |
244879813 mac80211: add dri... |
25 |
#include "driver-ops.h" |
cf0277e71 mac80211: fix skb... |
26 |
#include "wme.h" |
1be7fe8de mac80211: fix for... |
27 |
#include "rate.h" |
0d143fe1e mac80211: move re... |
28 |
|
c771c9d8d mac80211: add int... |
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 |
/** * DOC: Interface list locking * * The interface list in each struct ieee80211_local is protected * three-fold: * * (1) modifications may only be done under the RTNL * (2) modifications and readers are protected against each other by * the iflist_mtx. * (3) modifications are done in an RCU manner so atomic readers * can traverse the list in RCU-safe blocks. * * As a consequence, reads (traversals) of the list can be protected * by either the RTNL, the iflist_mtx or RCU. */ |
0d143fe1e mac80211: move re... |
44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 |
static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) { int meshhdrlen; struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); meshhdrlen = (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) ? 5 : 0; /* FIX: what would be proper limits for MTU? * This interface uses 802.3 frames. */ if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) { return -EINVAL; } #ifdef CONFIG_MAC80211_VERBOSE_DEBUG printk(KERN_DEBUG "%s: setting MTU %d ", dev->name, new_mtu); #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ dev->mtu = new_mtu; return 0; } |
47846c9b0 mac80211: reduce ... |
65 66 67 |
static int ieee80211_change_mac(struct net_device *dev, void *addr) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
fc5f75773 mac80211: fix iee... |
68 |
struct sockaddr *sa = addr; |
47846c9b0 mac80211: reduce ... |
69 |
int ret; |
9607e6b66 mac80211: add iee... |
70 |
if (ieee80211_sdata_running(sdata)) |
47846c9b0 mac80211: reduce ... |
71 |
return -EBUSY; |
fc5f75773 mac80211: fix iee... |
72 |
ret = eth_mac_addr(dev, sa); |
47846c9b0 mac80211: reduce ... |
73 74 |
if (ret == 0) |
fc5f75773 mac80211: fix iee... |
75 |
memcpy(sdata->vif.addr, sa->sa_data, ETH_ALEN); |
47846c9b0 mac80211: reduce ... |
76 77 78 |
return ret; } |
0d143fe1e mac80211: move re... |
79 80 81 82 83 84 85 86 87 88 89 90 91 |
static inline int identical_mac_addr_allowed(int type1, int type2) { return type1 == NL80211_IFTYPE_MONITOR || type2 == NL80211_IFTYPE_MONITOR || (type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_WDS) || (type1 == NL80211_IFTYPE_WDS && (type2 == NL80211_IFTYPE_WDS || type2 == NL80211_IFTYPE_AP)) || (type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_AP_VLAN) || (type1 == NL80211_IFTYPE_AP_VLAN && (type2 == NL80211_IFTYPE_AP || type2 == NL80211_IFTYPE_AP_VLAN)); } |
87490f6db mac80211: split o... |
92 93 |
static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, enum nl80211_iftype iftype) |
0d143fe1e mac80211: move re... |
94 |
{ |
b4a4bf5d7 mac80211: fixups ... |
95 |
struct ieee80211_local *local = sdata->local; |
87490f6db mac80211: split o... |
96 97 |
struct ieee80211_sub_if_data *nsdata; struct net_device *dev = sdata->dev; |
0d143fe1e mac80211: move re... |
98 |
|
87490f6db mac80211: split o... |
99 |
ASSERT_RTNL(); |
0d143fe1e mac80211: move re... |
100 101 102 103 |
/* we hold the RTNL here so can safely walk the list */ list_for_each_entry(nsdata, &local->interfaces, list) { struct net_device *ndev = nsdata->dev; |
9607e6b66 mac80211: add iee... |
104 |
if (ndev != dev && ieee80211_sdata_running(nsdata)) { |
0d143fe1e mac80211: move re... |
105 106 107 108 109 110 111 112 113 114 |
/* * Allow only a single IBSS interface to be up at any * time. This is restricted because beacon distribution * cannot work properly if both are in the same IBSS. * * To remove this restriction we'd have to disallow them * from setting the same SSID on different IBSS interfaces * belonging to the same hardware. Then, however, we're * faced with having to adopt two different TSF timers... */ |
87490f6db mac80211: split o... |
115 |
if (iftype == NL80211_IFTYPE_ADHOC && |
0d143fe1e mac80211: move re... |
116 117 118 119 120 121 122 123 124 125 126 127 128 |
nsdata->vif.type == NL80211_IFTYPE_ADHOC) return -EBUSY; /* * The remaining checks are only performed for interfaces * with the same MAC address. */ if (compare_ether_addr(dev->dev_addr, ndev->dev_addr)) continue; /* * check whether it may have the same address */ |
87490f6db mac80211: split o... |
129 |
if (!identical_mac_addr_allowed(iftype, |
0d143fe1e mac80211: move re... |
130 131 132 133 134 135 |
nsdata->vif.type)) return -ENOTUNIQ; /* * can only add VLANs to enabled APs */ |
87490f6db mac80211: split o... |
136 |
if (iftype == NL80211_IFTYPE_AP_VLAN && |
0d143fe1e mac80211: move re... |
137 138 139 140 |
nsdata->vif.type == NL80211_IFTYPE_AP) sdata->bss = &nsdata->u.ap; } } |
87490f6db mac80211: split o... |
141 142 |
return 0; } |
85416a4fa mac80211: fix rx ... |
143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 |
void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, const int offset) { struct ieee80211_local *local = sdata->local; u32 flags = sdata->u.mntr_flags; #define ADJUST(_f, _s) do { \ if (flags & MONITOR_FLAG_##_f) \ local->fif_##_s += offset; \ } while (0) ADJUST(FCSFAIL, fcsfail); ADJUST(PLCPFAIL, plcpfail); ADJUST(CONTROL, control); ADJUST(CONTROL, pspoll); ADJUST(OTHER_BSS, other_bss); #undef ADJUST } |
34d4bc4d4 mac80211: support... |
162 163 164 165 166 167 |
/* * NOTE: Be very careful when changing this function, it must NOT return * an error on interface type changes that have been pre-checked, so most * checks should be in ieee80211_check_concurrent_iface. */ static int ieee80211_do_open(struct net_device *dev, bool coming_up) |
87490f6db mac80211: split o... |
168 169 170 171 172 173 174 |
{ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct sta_info *sta; u32 changed = 0; int res; u32 hw_reconf_flags = 0; |
0d143fe1e mac80211: move re... |
175 176 177 178 179 180 181 182 183 184 185 186 187 188 |
switch (sdata->vif.type) { case NL80211_IFTYPE_WDS: if (!is_valid_ether_addr(sdata->u.wds.remote_addr)) return -ENOLINK; break; case NL80211_IFTYPE_AP_VLAN: if (!sdata->bss) return -ENOLINK; list_add(&sdata->u.vlan.list, &sdata->bss->vlans); break; case NL80211_IFTYPE_AP: sdata->bss = &sdata->u.ap; break; case NL80211_IFTYPE_MESH_POINT: |
0d143fe1e mac80211: move re... |
189 190 191 192 193 194 |
case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_MONITOR: case NL80211_IFTYPE_ADHOC: /* no special treatment */ break; case NL80211_IFTYPE_UNSPECIFIED: |
2e161f78e cfg80211/mac80211... |
195 |
case NUM_NL80211_IFTYPES: |
2ca27bcff mac80211: add p2p... |
196 197 |
case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_P2P_GO: |
0d143fe1e mac80211: move re... |
198 199 200 201 202 203 |
/* cannot happen */ WARN_ON(1); break; } if (local->open_count == 0) { |
244879813 mac80211: add dri... |
204 |
res = drv_start(local); |
0d143fe1e mac80211: move re... |
205 206 |
if (res) goto err_del_bss; |
4e6cbfd09 mac80211: support... |
207 208 |
if (local->ops->napi_poll) napi_enable(&local->napi); |
e8975581f mac80211: introdu... |
209 210 |
/* we're brought up, everything changes */ hw_reconf_flags = ~0; |
1f87f7d3a cfg80211: add rfk... |
211 |
ieee80211_led_radio(local, true); |
67408c8c7 mac80211: selecti... |
212 213 |
ieee80211_mod_tpt_led_trig(local, IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); |
0d143fe1e mac80211: move re... |
214 215 216 |
} /* |
bf533e0bf mac80211: simplif... |
217 218 |
* Copy the hopefully now-present MAC address to * this interface, if it has the special null one. |
0d143fe1e mac80211: move re... |
219 |
*/ |
bf533e0bf mac80211: simplif... |
220 221 222 223 224 225 226 227 228 229 |
if (is_zero_ether_addr(dev->dev_addr)) { memcpy(dev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN); if (!is_valid_ether_addr(dev->dev_addr)) { if (!local->open_count) drv_stop(local); return -EADDRNOTAVAIL; |
0adc23f58 mac80211: support... |
230 |
} |
0d143fe1e mac80211: move re... |
231 |
} |
0d143fe1e mac80211: move re... |
232 233 234 235 236 237 238 239 240 241 242 243 |
switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: /* no need to tell driver */ break; case NL80211_IFTYPE_MONITOR: if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { local->cooked_mntrs++; break; } /* must be before the call to ieee80211_configure_filter */ local->monitors++; |
e8975581f mac80211: introdu... |
244 |
if (local->monitors == 1) { |
0869aea0e mac80211: remove ... |
245 246 |
local->hw.conf.flags |= IEEE80211_CONF_MONITOR; hw_reconf_flags |= IEEE80211_CONF_CHANGE_MONITOR; |
e8975581f mac80211: introdu... |
247 |
} |
0d143fe1e mac80211: move re... |
248 |
|
85416a4fa mac80211: fix rx ... |
249 |
ieee80211_adjust_monitor_flags(sdata, 1); |
0d143fe1e mac80211: move re... |
250 |
ieee80211_configure_filter(local); |
53e9b1de6 mac80211: set car... |
251 252 |
netif_carrier_on(dev); |
0d143fe1e mac80211: move re... |
253 |
break; |
0d143fe1e mac80211: move re... |
254 |
default: |
34d4bc4d4 mac80211: support... |
255 256 257 258 259 |
if (coming_up) { res = drv_add_interface(local, &sdata->vif); if (res) goto err_stop; } |
0d143fe1e mac80211: move re... |
260 |
|
29cbe68c5 cfg80211/mac80211... |
261 |
if (sdata->vif.type == NL80211_IFTYPE_AP) { |
e3b90ca28 mac80211: FIF_PSP... |
262 |
local->fif_pspoll++; |
7be5086d4 mac80211: add pro... |
263 |
local->fif_probe_req++; |
e3b90ca28 mac80211: FIF_PSP... |
264 |
|
e3b90ca28 mac80211: FIF_PSP... |
265 |
ieee80211_configure_filter(local); |
7be5086d4 mac80211: add pro... |
266 267 |
} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { local->fif_probe_req++; |
a3c9aa512 mac80211: disable... |
268 |
} |
e3b90ca28 mac80211: FIF_PSP... |
269 |
|
0d143fe1e mac80211: move re... |
270 271 |
changed |= ieee80211_reset_erp_info(sdata); ieee80211_bss_info_change_notify(sdata, changed); |
0d143fe1e mac80211: move re... |
272 |
|
7986cf958 mac80211: remove ... |
273 |
if (sdata->vif.type == NL80211_IFTYPE_STATION) |
0d143fe1e mac80211: move re... |
274 275 276 277 |
netif_carrier_off(dev); else netif_carrier_on(dev); } |
2d2080c3c mac80211: set run... |
278 |
set_bit(SDATA_STATE_RUNNING, &sdata->state); |
0d143fe1e mac80211: move re... |
279 280 281 282 283 284 285 286 |
if (sdata->vif.type == NL80211_IFTYPE_WDS) { /* Create STA entry for the WDS peer */ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr, GFP_KERNEL); if (!sta) { res = -ENOMEM; goto err_del_interface; } |
c2c98fdeb mac80211: optimis... |
287 288 |
/* no atomic bitop required since STA is not live yet */ set_sta_flag(sta, WLAN_STA_AUTHORIZED); |
0d143fe1e mac80211: move re... |
289 290 291 292 293 294 |
res = sta_info_insert(sta); if (res) { /* STA has been freed */ goto err_del_interface; } |
1be7fe8de mac80211: fix for... |
295 296 |
rate_control_rate_init(sta); |
0d143fe1e mac80211: move re... |
297 |
} |
0d143fe1e mac80211: move re... |
298 299 300 301 302 303 304 305 306 307 |
/* * set_multicast_list will be invoked by the networking core * which will check whether any increments here were done in * error and sync them down to the hardware as filter flags. */ if (sdata->flags & IEEE80211_SDATA_ALLMULTI) atomic_inc(&local->iff_allmultis); if (sdata->flags & IEEE80211_SDATA_PROMISC) atomic_inc(&local->iff_promiscs); |
7da7cc1d4 mac80211: per int... |
308 |
mutex_lock(&local->mtx); |
5cff20e6c mac80211: tell dr... |
309 |
hw_reconf_flags |= __ieee80211_recalc_idle(local); |
7da7cc1d4 mac80211: per int... |
310 |
mutex_unlock(&local->mtx); |
5cff20e6c mac80211: tell dr... |
311 |
|
34d4bc4d4 mac80211: support... |
312 313 |
if (coming_up) local->open_count++; |
e8975581f mac80211: introdu... |
314 315 |
if (hw_reconf_flags) { ieee80211_hw_config(local, hw_reconf_flags); |
0d143fe1e mac80211: move re... |
316 317 318 319 320 321 322 |
/* * set default queue parameters so drivers don't * need to initialise the hardware if the hardware * doesn't start up with sane defaults */ ieee80211_set_wmm_default(sdata); } |
10f644a47 mac80211: disable... |
323 |
ieee80211_recalc_ps(local, -1); |
965bedadc mac80211: improve... |
324 |
|
8a5b33f55 Revert "mac80211:... |
325 |
netif_tx_start_all_queues(dev); |
0d143fe1e mac80211: move re... |
326 327 328 |
return 0; err_del_interface: |
1ed32e4fc mac80211: remove ... |
329 |
drv_remove_interface(local, &sdata->vif); |
0d143fe1e mac80211: move re... |
330 |
err_stop: |
244879813 mac80211: add dri... |
331 332 |
if (!local->open_count) drv_stop(local); |
0d143fe1e mac80211: move re... |
333 334 335 336 |
err_del_bss: sdata->bss = NULL; if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) list_del(&sdata->u.vlan.list); |
2d2080c3c mac80211: set run... |
337 |
clear_bit(SDATA_STATE_RUNNING, &sdata->state); |
0d143fe1e mac80211: move re... |
338 339 |
return res; } |
34d4bc4d4 mac80211: support... |
340 |
static int ieee80211_open(struct net_device *dev) |
0d143fe1e mac80211: move re... |
341 342 |
{ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
34d4bc4d4 mac80211: support... |
343 344 345 |
int err; /* fail early if user set an invalid address */ |
2fcf28247 mac80211: remove ... |
346 |
if (!is_valid_ether_addr(dev->dev_addr)) |
34d4bc4d4 mac80211: support... |
347 348 349 350 351 352 353 354 355 356 357 358 |
return -EADDRNOTAVAIL; err = ieee80211_check_concurrent_iface(sdata, sdata->vif.type); if (err) return err; return ieee80211_do_open(dev, true); } static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_down) { |
0d143fe1e mac80211: move re... |
359 |
struct ieee80211_local *local = sdata->local; |
5061b0c2b mac80211: coopera... |
360 361 |
unsigned long flags; struct sk_buff *skb, *tmp; |
e8975581f mac80211: introdu... |
362 |
u32 hw_reconf_flags = 0; |
5061b0c2b mac80211: coopera... |
363 |
int i; |
2cf22b897 mac80211: Recalcu... |
364 |
enum nl80211_channel_type orig_ct; |
0d143fe1e mac80211: move re... |
365 |
|
c29acf201 mac80211: abort s... |
366 |
clear_bit(SDATA_STATE_RUNNING, &sdata->state); |
352ffad64 mac80211: unset S... |
367 368 |
if (local->scan_sdata == sdata) ieee80211_scan_cancel(local); |
0d143fe1e mac80211: move re... |
369 370 371 |
/* * Stop TX on this interface first. */ |
34d4bc4d4 mac80211: support... |
372 |
netif_tx_stop_all_queues(sdata->dev); |
0d143fe1e mac80211: move re... |
373 374 |
/* |
af6b63741 mac80211: general... |
375 376 377 378 379 |
* Purge work for this interface. */ ieee80211_work_purge(sdata); /* |
0d143fe1e mac80211: move re... |
380 381 382 383 384 385 386 387 388 |
* Remove all stations associated with this interface. * * This must be done before calling ops->remove_interface() * because otherwise we can later invoke ops->sta_notify() * whenever the STAs are removed, and that invalidates driver * assumptions about always getting a vif pointer that is valid * (because if we remove a STA after ops->remove_interface() * the driver will have removed the vif info already!) * |
b9dcf712d mac80211: clean u... |
389 390 391 |
* This is relevant only in AP, WDS and mesh modes, since in * all other modes we've already removed all stations when * disconnecting etc. |
0d143fe1e mac80211: move re... |
392 393 394 395 396 397 398 399 400 401 402 403 404 405 |
*/ sta_info_flush(local, sdata); /* * Don't count this interface for promisc/allmulti while it * is down. dev_mc_unsync() will invoke set_multicast_list * on the master interface which will sync these down to the * hardware as filter flags. */ if (sdata->flags & IEEE80211_SDATA_ALLMULTI) atomic_dec(&local->iff_allmultis); if (sdata->flags & IEEE80211_SDATA_PROMISC) atomic_dec(&local->iff_promiscs); |
7be5086d4 mac80211: add pro... |
406 |
if (sdata->vif.type == NL80211_IFTYPE_AP) { |
e3b90ca28 mac80211: FIF_PSP... |
407 |
local->fif_pspoll--; |
7be5086d4 mac80211: add pro... |
408 409 410 411 |
local->fif_probe_req--; } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { local->fif_probe_req--; } |
e3b90ca28 mac80211: FIF_PSP... |
412 |
|
34d4bc4d4 mac80211: support... |
413 |
netif_addr_lock_bh(sdata->dev); |
3b8d81e02 mac80211: remove ... |
414 |
spin_lock_bh(&local->filter_lock); |
34d4bc4d4 mac80211: support... |
415 416 |
__hw_addr_unsync(&local->mc_list, &sdata->dev->mc, sdata->dev->addr_len); |
3b8d81e02 mac80211: remove ... |
417 |
spin_unlock_bh(&local->filter_lock); |
34d4bc4d4 mac80211: support... |
418 |
netif_addr_unlock_bh(sdata->dev); |
3b8d81e02 mac80211: remove ... |
419 |
|
3ac64beec mac80211: allow c... |
420 |
ieee80211_configure_filter(local); |
7cbf0ba51 mac80211: Cancel ... |
421 422 |
del_timer_sync(&local->dynamic_ps_timer); cancel_work_sync(&local->dynamic_ps_enable_work); |
0d143fe1e mac80211: move re... |
423 424 425 |
/* APs need special treatment */ if (sdata->vif.type == NL80211_IFTYPE_AP) { |
57c9fff3d mac80211: fix spa... |
426 |
struct ieee80211_sub_if_data *vlan, *tmpsdata; |
40b275b69 mac80211: sparse ... |
427 428 |
struct beacon_data *old_beacon = rtnl_dereference(sdata->u.ap.beacon); |
0d143fe1e mac80211: move re... |
429 |
|
b9dcf712d mac80211: clean u... |
430 431 432 |
/* sdata_running will return false, so this will disable */ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
0d143fe1e mac80211: move re... |
433 |
/* remove beacon */ |
a9b3cd7f3 rcu: convert uses... |
434 |
RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
0d143fe1e mac80211: move re... |
435 436 437 438 |
synchronize_rcu(); kfree(old_beacon); /* down all dependent devices, that is VLANs */ |
57c9fff3d mac80211: fix spa... |
439 |
list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans, |
0d143fe1e mac80211: move re... |
440 441 442 |
u.vlan.list) dev_close(vlan->dev); WARN_ON(!list_empty(&sdata->u.ap.vlans)); |
6f2d93353 mac80211: fix AP/... |
443 444 445 446 |
/* free all potentially still buffered bcast frames */ local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps_bc_buf); skb_queue_purge(&sdata->u.ap.ps_bc_buf); |
0d143fe1e mac80211: move re... |
447 |
} |
34d4bc4d4 mac80211: support... |
448 449 |
if (going_down) local->open_count--; |
0d143fe1e mac80211: move re... |
450 451 452 453 454 455 456 457 458 459 460 461 462 |
switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: list_del(&sdata->u.vlan.list); /* no need to tell driver */ break; case NL80211_IFTYPE_MONITOR: if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { local->cooked_mntrs--; break; } local->monitors--; |
e8975581f mac80211: introdu... |
463 |
if (local->monitors == 0) { |
0869aea0e mac80211: remove ... |
464 465 |
local->hw.conf.flags &= ~IEEE80211_CONF_MONITOR; hw_reconf_flags |= IEEE80211_CONF_CHANGE_MONITOR; |
e8975581f mac80211: introdu... |
466 |
} |
0d143fe1e mac80211: move re... |
467 |
|
85416a4fa mac80211: fix rx ... |
468 |
ieee80211_adjust_monitor_flags(sdata, -1); |
0d143fe1e mac80211: move re... |
469 |
ieee80211_configure_filter(local); |
0d143fe1e mac80211: move re... |
470 |
break; |
0d143fe1e mac80211: move re... |
471 |
default: |
c1475ca99 mac80211: move ag... |
472 |
flush_work(&sdata->work); |
35f20c14a mac80211: use com... |
473 474 475 476 477 478 479 480 |
/* * When we get here, the interface is marked down. * Call synchronize_rcu() to wait for the RX path * should it be using the interface and enqueuing * frames at this very time on another CPU. */ synchronize_rcu(); skb_queue_purge(&sdata->skb_queue); |
97af74320 mac80211: disable... |
481 |
/* |
b9dcf712d mac80211: clean u... |
482 483 |
* Disable beaconing here for mesh only, AP and IBSS * are already taken care of. |
97af74320 mac80211: disable... |
484 |
*/ |
b9dcf712d mac80211: clean u... |
485 |
if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) |
97af74320 mac80211: disable... |
486 487 |
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
97af74320 mac80211: disable... |
488 |
|
b9dcf712d mac80211: clean u... |
489 490 491 492 |
/* * Free all remaining keys, there shouldn't be any, * except maybe group keys in AP more or WDS? */ |
ad0e2b5a0 mac80211: simplif... |
493 |
ieee80211_free_keys(sdata); |
b9dcf712d mac80211: clean u... |
494 |
|
34d4bc4d4 mac80211: support... |
495 496 |
if (going_down) drv_remove_interface(local, &sdata->vif); |
0d143fe1e mac80211: move re... |
497 498 499 |
} sdata->bss = NULL; |
7da7cc1d4 mac80211: per int... |
500 |
mutex_lock(&local->mtx); |
5cff20e6c mac80211: tell dr... |
501 |
hw_reconf_flags |= __ieee80211_recalc_idle(local); |
7da7cc1d4 mac80211: per int... |
502 |
mutex_unlock(&local->mtx); |
5cff20e6c mac80211: tell dr... |
503 504 |
ieee80211_recalc_ps(local, -1); |
0d143fe1e mac80211: move re... |
505 |
if (local->open_count == 0) { |
4e6cbfd09 mac80211: support... |
506 507 |
if (local->ops->napi_poll) napi_disable(&local->napi); |
ea77f12f2 mac80211: remove ... |
508 |
ieee80211_clear_tx_pending(local); |
84f6a01ce mac80211: fix con... |
509 |
ieee80211_stop_device(local); |
0d143fe1e mac80211: move re... |
510 |
|
e8975581f mac80211: introdu... |
511 512 |
/* no reconfiguring after stop! */ hw_reconf_flags = 0; |
0d143fe1e mac80211: move re... |
513 |
} |
2cf22b897 mac80211: Recalcu... |
514 515 516 517 518 |
/* Re-calculate channel-type, in case there are multiple vifs * on different channel types. */ orig_ct = local->_oper_channel_type; ieee80211_set_channel_type(local, NULL, NL80211_CHAN_NO_HT); |
e8975581f mac80211: introdu... |
519 |
/* do after stop to avoid reconfiguring when we stop anyway */ |
2cf22b897 mac80211: Recalcu... |
520 |
if (hw_reconf_flags || (orig_ct != local->_oper_channel_type)) |
e8975581f mac80211: introdu... |
521 |
ieee80211_hw_config(local, hw_reconf_flags); |
5061b0c2b mac80211: coopera... |
522 523 524 525 526 527 528 529 530 531 532 |
spin_lock_irqsave(&local->queue_stop_reason_lock, flags); for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { skb_queue_walk_safe(&local->pending[i], skb, tmp) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (info->control.vif == &sdata->vif) { __skb_unlink(skb, &local->pending[i]); dev_kfree_skb_irq(skb); } } } spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
34d4bc4d4 mac80211: support... |
533 534 535 536 537 538 539 |
} static int ieee80211_stop(struct net_device *dev) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); ieee80211_do_stop(sdata, true); |
5061b0c2b mac80211: coopera... |
540 |
|
0d143fe1e mac80211: move re... |
541 542 543 544 545 |
return 0; } static void ieee80211_set_multicast_list(struct net_device *dev) { |
0d143fe1e mac80211: move re... |
546 |
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
b4a4bf5d7 mac80211: fixups ... |
547 |
struct ieee80211_local *local = sdata->local; |
0d143fe1e mac80211: move re... |
548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 |
int allmulti, promisc, sdata_allmulti, sdata_promisc; allmulti = !!(dev->flags & IFF_ALLMULTI); promisc = !!(dev->flags & IFF_PROMISC); sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI); sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC); if (allmulti != sdata_allmulti) { if (dev->flags & IFF_ALLMULTI) atomic_inc(&local->iff_allmultis); else atomic_dec(&local->iff_allmultis); sdata->flags ^= IEEE80211_SDATA_ALLMULTI; } if (promisc != sdata_promisc) { if (dev->flags & IFF_PROMISC) atomic_inc(&local->iff_promiscs); else atomic_dec(&local->iff_promiscs); sdata->flags ^= IEEE80211_SDATA_PROMISC; } |
3b8d81e02 mac80211: remove ... |
570 |
spin_lock_bh(&local->filter_lock); |
22bedad3c net: convert mult... |
571 |
__hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len); |
3b8d81e02 mac80211: remove ... |
572 |
spin_unlock_bh(&local->filter_lock); |
3ac64beec mac80211: allow c... |
573 |
ieee80211_queue_work(&local->hw, &local->reconfig_filter); |
0d143fe1e mac80211: move re... |
574 |
} |
75636525f mac80211: revamp ... |
575 576 577 578 579 |
/* * Called when the netdev is removed or, by the code below, before * the interface type changes. */ static void ieee80211_teardown_sdata(struct net_device *dev) |
f0706e828 [MAC80211]: Add m... |
580 |
{ |
75636525f mac80211: revamp ... |
581 582 |
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; |
75636525f mac80211: revamp ... |
583 |
int flushed; |
f0706e828 [MAC80211]: Add m... |
584 |
int i; |
75636525f mac80211: revamp ... |
585 586 |
/* free extra data */ ieee80211_free_keys(sdata); |
aee14ceb5 mac80211: Reorder... |
587 |
ieee80211_debugfs_remove_netdev(sdata); |
f0706e828 [MAC80211]: Add m... |
588 |
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) |
75636525f mac80211: revamp ... |
589 590 |
__skb_queue_purge(&sdata->fragments[i].skb_list); sdata->fragment_next = 0; |
11a843b7e [MAC80211]: rewor... |
591 |
|
b9dcf712d mac80211: clean u... |
592 593 |
if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_rmc_free(sdata); |
75636525f mac80211: revamp ... |
594 595 596 |
flushed = sta_info_flush(local, sdata); WARN_ON(flushed); |
f0706e828 [MAC80211]: Add m... |
597 |
} |
cf0277e71 mac80211: fix skb... |
598 599 600 601 602 |
static u16 ieee80211_netdev_select_queue(struct net_device *dev, struct sk_buff *skb) { return ieee80211_select_queue(IEEE80211_DEV_TO_SUB_IF(dev), skb); } |
587e729ec mac80211: convert... |
603 604 605 606 607 |
static const struct net_device_ops ieee80211_dataif_ops = { .ndo_open = ieee80211_open, .ndo_stop = ieee80211_stop, .ndo_uninit = ieee80211_teardown_sdata, .ndo_start_xmit = ieee80211_subif_start_xmit, |
afc4b13df net: remove use o... |
608 |
.ndo_set_rx_mode = ieee80211_set_multicast_list, |
587e729ec mac80211: convert... |
609 |
.ndo_change_mtu = ieee80211_change_mtu, |
47846c9b0 mac80211: reduce ... |
610 |
.ndo_set_mac_address = ieee80211_change_mac, |
cf0277e71 mac80211: fix skb... |
611 |
.ndo_select_queue = ieee80211_netdev_select_queue, |
587e729ec mac80211: convert... |
612 |
}; |
cf0277e71 mac80211: fix skb... |
613 614 615 616 617 618 619 |
static u16 ieee80211_monitor_select_queue(struct net_device *dev, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct ieee80211_hdr *hdr; struct ieee80211_radiotap_header *rtap = (void *)skb->data; |
193e70ef6 mac80211: fix que... |
620 |
u8 *p; |
cf0277e71 mac80211: fix skb... |
621 622 623 624 625 |
if (local->hw.queues < 4) return 0; if (skb->len < 4 || |
b49bb574e mac80211: fix end... |
626 |
skb->len < le16_to_cpu(rtap->it_len) + 2 /* frame control */) |
cf0277e71 mac80211: fix skb... |
627 |
return 0; /* doesn't matter, frame will be dropped */ |
b49bb574e mac80211: fix end... |
628 |
hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len)); |
cf0277e71 mac80211: fix skb... |
629 |
|
861a57cd0 mac80211: fix WMM... |
630 |
if (!ieee80211_is_data(hdr->frame_control)) { |
cf0277e71 mac80211: fix skb... |
631 632 633 |
skb->priority = 7; return ieee802_1d_to_ac[skb->priority]; } |
861a57cd0 mac80211: fix WMM... |
634 635 636 637 |
if (!ieee80211_is_data_qos(hdr->frame_control)) { skb->priority = 0; return ieee802_1d_to_ac[skb->priority]; } |
cf0277e71 mac80211: fix skb... |
638 |
|
193e70ef6 mac80211: fix que... |
639 640 |
p = ieee80211_get_qos_ctl(hdr); skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK; |
cf0277e71 mac80211: fix skb... |
641 642 |
return ieee80211_downgrade_queue(local, skb); } |
587e729ec mac80211: convert... |
643 644 645 646 647 |
static const struct net_device_ops ieee80211_monitorif_ops = { .ndo_open = ieee80211_open, .ndo_stop = ieee80211_stop, .ndo_uninit = ieee80211_teardown_sdata, .ndo_start_xmit = ieee80211_monitor_start_xmit, |
afc4b13df net: remove use o... |
648 |
.ndo_set_rx_mode = ieee80211_set_multicast_list, |
587e729ec mac80211: convert... |
649 650 |
.ndo_change_mtu = ieee80211_change_mtu, .ndo_set_mac_address = eth_mac_addr, |
cf0277e71 mac80211: fix skb... |
651 |
.ndo_select_queue = ieee80211_monitor_select_queue, |
587e729ec mac80211: convert... |
652 653 654 655 656 |
}; static void ieee80211_if_setup(struct net_device *dev) { ether_setup(dev); |
550fd08c2 net: Audit driver... |
657 |
dev->priv_flags &= ~IFF_TX_SKB_SHARING; |
587e729ec mac80211: convert... |
658 |
dev->netdev_ops = &ieee80211_dataif_ops; |
587e729ec mac80211: convert... |
659 660 |
dev->destructor = free_netdev; } |
1fa57d017 mac80211: use com... |
661 662 663 664 665 666 |
static void ieee80211_iface_work(struct work_struct *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, work); struct ieee80211_local *local = sdata->local; struct sk_buff *skb; |
344eec67c mac80211: move bl... |
667 |
struct sta_info *sta; |
c1475ca99 mac80211: move ag... |
668 |
struct ieee80211_ra_tid *ra_tid; |
1fa57d017 mac80211: use com... |
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 |
if (!ieee80211_sdata_running(sdata)) return; if (local->scanning) return; /* * ieee80211_queue_work() should have picked up most cases, * here we'll pick the rest. */ if (WARN(local->suspended, "interface work scheduled while going to suspend ")) return; /* first process frames */ while ((skb = skb_dequeue(&sdata->skb_queue))) { |
bed7ee6e4 mac80211: always ... |
687 |
struct ieee80211_mgmt *mgmt = (void *)skb->data; |
c1475ca99 mac80211: move ag... |
688 689 690 691 692 693 694 695 696 697 |
if (skb->pkt_type == IEEE80211_SDATA_QUEUE_AGG_START) { ra_tid = (void *)&skb->cb; ieee80211_start_tx_ba_cb(&sdata->vif, ra_tid->ra, ra_tid->tid); } else if (skb->pkt_type == IEEE80211_SDATA_QUEUE_AGG_STOP) { ra_tid = (void *)&skb->cb; ieee80211_stop_tx_ba_cb(&sdata->vif, ra_tid->ra, ra_tid->tid); } else if (ieee80211_is_action(mgmt->frame_control) && mgmt->u.action.category == WLAN_CATEGORY_BACK) { |
bed7ee6e4 mac80211: always ... |
698 |
int len = skb->len; |
bed7ee6e4 mac80211: always ... |
699 |
|
a93e36443 mac80211: change ... |
700 |
mutex_lock(&local->sta_mtx); |
875ae5f68 mac80211: fix agg... |
701 |
sta = sta_info_get_bss(sdata, mgmt->sa); |
bed7ee6e4 mac80211: always ... |
702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 |
if (sta) { switch (mgmt->u.action.u.addba_req.action_code) { case WLAN_ACTION_ADDBA_REQ: ieee80211_process_addba_request( local, sta, mgmt, len); break; case WLAN_ACTION_ADDBA_RESP: ieee80211_process_addba_resp(local, sta, mgmt, len); break; case WLAN_ACTION_DELBA: ieee80211_process_delba(sdata, sta, mgmt, len); break; default: WARN_ON(1); break; } } |
a93e36443 mac80211: change ... |
721 |
mutex_unlock(&local->sta_mtx); |
344eec67c mac80211: move bl... |
722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 |
} else if (ieee80211_is_data_qos(mgmt->frame_control)) { struct ieee80211_hdr *hdr = (void *)mgmt; /* * So the frame isn't mgmt, but frame_control * is at the right place anyway, of course, so * the if statement is correct. * * Warn if we have other data frame types here, * they must not get here. */ WARN_ON(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC)); WARN_ON(!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG))); /* * This was a fragment of a frame, received while * a block-ack session was active. That cannot be * right, so terminate the session. */ |
a93e36443 mac80211: change ... |
741 |
mutex_lock(&local->sta_mtx); |
875ae5f68 mac80211: fix agg... |
742 |
sta = sta_info_get_bss(sdata, mgmt->sa); |
344eec67c mac80211: move bl... |
743 744 745 746 747 748 |
if (sta) { u16 tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK; __ieee80211_stop_rx_ba_session( sta, tid, WLAN_BACK_RECIPIENT, |
53f73c09d mac80211: avoid t... |
749 750 |
WLAN_REASON_QSTA_REQUIRE_SETUP, true); |
344eec67c mac80211: move bl... |
751 |
} |
a93e36443 mac80211: change ... |
752 |
mutex_unlock(&local->sta_mtx); |
bed7ee6e4 mac80211: always ... |
753 |
} else switch (sdata->vif.type) { |
1fa57d017 mac80211: use com... |
754 755 756 757 758 759 760 761 762 763 764 765 766 |
case NL80211_IFTYPE_STATION: ieee80211_sta_rx_queued_mgmt(sdata, skb); break; case NL80211_IFTYPE_ADHOC: ieee80211_ibss_rx_queued_mgmt(sdata, skb); break; case NL80211_IFTYPE_MESH_POINT: if (!ieee80211_vif_is_mesh(&sdata->vif)) break; ieee80211_mesh_rx_queued_mgmt(sdata, skb); break; default: WARN(1, "frame for unexpected interface type"); |
1fa57d017 mac80211: use com... |
767 768 |
break; } |
36b3a628a mac80211: common ... |
769 770 |
kfree_skb(skb); |
1fa57d017 mac80211: use com... |
771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 |
} /* then other type-dependent work */ switch (sdata->vif.type) { case NL80211_IFTYPE_STATION: ieee80211_sta_work(sdata); break; case NL80211_IFTYPE_ADHOC: ieee80211_ibss_work(sdata); break; case NL80211_IFTYPE_MESH_POINT: if (!ieee80211_vif_is_mesh(&sdata->vif)) break; ieee80211_mesh_work(sdata); break; default: break; } } |
75636525f mac80211: revamp ... |
790 791 792 793 |
/* * Helper function to initialise an interface to a specific type. */ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, |
05c914fe3 mac80211: use nl8... |
794 |
enum nl80211_iftype type) |
f0706e828 [MAC80211]: Add m... |
795 |
{ |
75636525f mac80211: revamp ... |
796 797 798 799 800 |
/* clear type-dependent union */ memset(&sdata->u, 0, sizeof(sdata->u)); /* and set some type-dependent values */ sdata->vif.type = type; |
2ca27bcff mac80211: add p2p... |
801 |
sdata->vif.p2p = false; |
587e729ec mac80211: convert... |
802 |
sdata->dev->netdev_ops = &ieee80211_dataif_ops; |
60719ffd7 cfg80211: show in... |
803 |
sdata->wdev.iftype = type; |
75636525f mac80211: revamp ... |
804 |
|
a621fa4d6 mac80211: allow c... |
805 806 |
sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE); sdata->control_port_no_encrypt = false; |
75636525f mac80211: revamp ... |
807 808 |
/* only monitor differs */ sdata->dev->type = ARPHRD_ETHER; |
35f20c14a mac80211: use com... |
809 |
skb_queue_head_init(&sdata->skb_queue); |
1fa57d017 mac80211: use com... |
810 |
INIT_WORK(&sdata->work, ieee80211_iface_work); |
35f20c14a mac80211: use com... |
811 |
|
75636525f mac80211: revamp ... |
812 |
switch (type) { |
2ca27bcff mac80211: add p2p... |
813 814 815 816 817 |
case NL80211_IFTYPE_P2P_GO: type = NL80211_IFTYPE_AP; sdata->vif.type = type; sdata->vif.p2p = true; /* fall through */ |
05c914fe3 mac80211: use nl8... |
818 |
case NL80211_IFTYPE_AP: |
75636525f mac80211: revamp ... |
819 820 821 |
skb_queue_head_init(&sdata->u.ap.ps_bc_buf); INIT_LIST_HEAD(&sdata->u.ap.vlans); break; |
2ca27bcff mac80211: add p2p... |
822 823 824 825 826 |
case NL80211_IFTYPE_P2P_CLIENT: type = NL80211_IFTYPE_STATION; sdata->vif.type = type; sdata->vif.p2p = true; /* fall through */ |
05c914fe3 mac80211: use nl8... |
827 |
case NL80211_IFTYPE_STATION: |
9c6bd7901 mac80211: reorder... |
828 |
ieee80211_sta_setup_sdata(sdata); |
472dbc45d mac80211: split o... |
829 |
break; |
469002983 mac80211: split I... |
830 831 832 |
case NL80211_IFTYPE_ADHOC: ieee80211_ibss_setup_sdata(sdata); break; |
05c914fe3 mac80211: use nl8... |
833 |
case NL80211_IFTYPE_MESH_POINT: |
75636525f mac80211: revamp ... |
834 835 836 |
if (ieee80211_vif_is_mesh(&sdata->vif)) ieee80211_mesh_init_sdata(sdata); break; |
05c914fe3 mac80211: use nl8... |
837 |
case NL80211_IFTYPE_MONITOR: |
75636525f mac80211: revamp ... |
838 |
sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP; |
587e729ec mac80211: convert... |
839 |
sdata->dev->netdev_ops = &ieee80211_monitorif_ops; |
75636525f mac80211: revamp ... |
840 841 842 |
sdata->u.mntr_flags = MONITOR_FLAG_CONTROL | MONITOR_FLAG_OTHER_BSS; break; |
05c914fe3 mac80211: use nl8... |
843 844 |
case NL80211_IFTYPE_WDS: case NL80211_IFTYPE_AP_VLAN: |
75636525f mac80211: revamp ... |
845 |
break; |
05c914fe3 mac80211: use nl8... |
846 |
case NL80211_IFTYPE_UNSPECIFIED: |
2e161f78e cfg80211/mac80211... |
847 |
case NUM_NL80211_IFTYPES: |
75636525f mac80211: revamp ... |
848 849 850 851 852 853 |
BUG(); break; } ieee80211_debugfs_add_netdev(sdata); } |
34d4bc4d4 mac80211: support... |
854 855 856 857 858 |
static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata, enum nl80211_iftype type) { struct ieee80211_local *local = sdata->local; int ret, err; |
2ca27bcff mac80211: add p2p... |
859 860 |
enum nl80211_iftype internal_type = type; bool p2p = false; |
34d4bc4d4 mac80211: support... |
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 |
ASSERT_RTNL(); if (!local->ops->change_interface) return -EBUSY; switch (sdata->vif.type) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: /* * Could maybe also all others here? * Just not sure how that interacts * with the RX/config path e.g. for * mesh. */ break; default: return -EBUSY; } switch (type) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: /* * Could probably support everything * but WDS here (WDS do_open can fail * under memory pressure, which this * code isn't prepared to handle). */ break; |
2ca27bcff mac80211: add p2p... |
893 894 895 896 897 898 899 900 |
case NL80211_IFTYPE_P2P_CLIENT: p2p = true; internal_type = NL80211_IFTYPE_STATION; break; case NL80211_IFTYPE_P2P_GO: p2p = true; internal_type = NL80211_IFTYPE_AP; break; |
34d4bc4d4 mac80211: support... |
901 902 903 |
default: return -EBUSY; } |
2ca27bcff mac80211: add p2p... |
904 |
ret = ieee80211_check_concurrent_iface(sdata, internal_type); |
34d4bc4d4 mac80211: support... |
905 906 907 908 909 910 |
if (ret) return ret; ieee80211_do_stop(sdata, false); ieee80211_teardown_sdata(sdata->dev); |
2ca27bcff mac80211: add p2p... |
911 |
ret = drv_change_interface(local, sdata, internal_type, p2p); |
34d4bc4d4 mac80211: support... |
912 913 914 915 916 917 918 919 920 921 |
if (ret) type = sdata->vif.type; ieee80211_setup_sdata(sdata, type); err = ieee80211_do_open(sdata->dev, false); WARN(err, "type change: do_open returned %d", err); return ret; } |
f3947e2df mac80211: push in... |
922 |
int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, |
05c914fe3 mac80211: use nl8... |
923 |
enum nl80211_iftype type) |
75636525f mac80211: revamp ... |
924 |
{ |
34d4bc4d4 mac80211: support... |
925 |
int ret; |
f3947e2df mac80211: push in... |
926 |
ASSERT_RTNL(); |
2ca27bcff mac80211: add p2p... |
927 |
if (type == ieee80211_vif_type_p2p(&sdata->vif)) |
f3947e2df mac80211: push in... |
928 |
return 0; |
e60c7744f cfg80211: handle ... |
929 |
/* Setting ad-hoc mode on non-IBSS channel is not supported. */ |
dcebf45cd mac80211: allow m... |
930 931 |
if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS && type == NL80211_IFTYPE_ADHOC) |
e60c7744f cfg80211: handle ... |
932 |
return -EOPNOTSUPP; |
34d4bc4d4 mac80211: support... |
933 934 935 936 937 938 939 940 941 |
if (ieee80211_sdata_running(sdata)) { ret = ieee80211_runtime_change_iftype(sdata, type); if (ret) return ret; } else { /* Purge and reset type-dependent state. */ ieee80211_teardown_sdata(sdata->dev); ieee80211_setup_sdata(sdata, type); } |
75636525f mac80211: revamp ... |
942 943 |
/* reset some values that shouldn't be kept across type changes */ |
bda3933a8 mac80211: move bs... |
944 |
sdata->vif.bss_conf.basic_rates = |
96dd22ac0 mac80211: inform ... |
945 946 |
ieee80211_mandatory_rates(sdata->local, sdata->local->hw.conf.channel->band); |
75636525f mac80211: revamp ... |
947 |
sdata->drop_unencrypted = 0; |
9bc383de3 cfg80211: introdu... |
948 949 |
if (type == NL80211_IFTYPE_STATION) sdata->u.mgd.use_4addr = false; |
f3947e2df mac80211: push in... |
950 951 |
return 0; |
f0706e828 [MAC80211]: Add m... |
952 |
} |
fa9029f8c mac80211: use dif... |
953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 |
static void ieee80211_assign_perm_addr(struct ieee80211_local *local, struct net_device *dev, enum nl80211_iftype type) { struct ieee80211_sub_if_data *sdata; u64 mask, start, addr, val, inc; u8 *m; u8 tmp_addr[ETH_ALEN]; int i; /* default ... something at least */ memcpy(dev->perm_addr, local->hw.wiphy->perm_addr, ETH_ALEN); if (is_zero_ether_addr(local->hw.wiphy->addr_mask) && local->hw.wiphy->n_addresses <= 1) return; mutex_lock(&local->iflist_mtx); switch (type) { case NL80211_IFTYPE_MONITOR: /* doesn't matter */ break; case NL80211_IFTYPE_WDS: case NL80211_IFTYPE_AP_VLAN: /* match up with an AP interface */ list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type != NL80211_IFTYPE_AP) continue; memcpy(dev->perm_addr, sdata->vif.addr, ETH_ALEN); break; } /* keep default if no AP interface present */ break; default: /* assign a new address if possible -- try n_addresses first */ for (i = 0; i < local->hw.wiphy->n_addresses; i++) { bool used = false; list_for_each_entry(sdata, &local->interfaces, list) { if (memcmp(local->hw.wiphy->addresses[i].addr, sdata->vif.addr, ETH_ALEN) == 0) { used = true; break; } } if (!used) { memcpy(dev->perm_addr, local->hw.wiphy->addresses[i].addr, ETH_ALEN); break; } } /* try mask if available */ if (is_zero_ether_addr(local->hw.wiphy->addr_mask)) break; m = local->hw.wiphy->addr_mask; mask = ((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) | ((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) | ((u64)m[4] << 1*8) | ((u64)m[5] << 0*8); if (__ffs64(mask) + hweight64(mask) != fls64(mask)) { /* not a contiguous mask ... not handled now! */ printk(KERN_DEBUG "not contiguous "); break; } m = local->hw.wiphy->perm_addr; start = ((u64)m[0] << 5*8) | ((u64)m[1] << 4*8) | ((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) | ((u64)m[4] << 1*8) | ((u64)m[5] << 0*8); inc = 1ULL<<__ffs64(mask); val = (start & mask); addr = (start & ~mask) | (val & mask); do { bool used = false; tmp_addr[5] = addr >> 0*8; tmp_addr[4] = addr >> 1*8; tmp_addr[3] = addr >> 2*8; tmp_addr[2] = addr >> 3*8; tmp_addr[1] = addr >> 4*8; tmp_addr[0] = addr >> 5*8; val += inc; list_for_each_entry(sdata, &local->interfaces, list) { if (memcmp(tmp_addr, sdata->vif.addr, ETH_ALEN) == 0) { used = true; break; } } if (!used) { memcpy(dev->perm_addr, tmp_addr, ETH_ALEN); break; } addr = (start & ~mask) | (val & mask); } while (addr != start); break; } mutex_unlock(&local->iflist_mtx); } |
3e122be08 mac80211: make ma... |
1065 |
int ieee80211_if_add(struct ieee80211_local *local, const char *name, |
05c914fe3 mac80211: use nl8... |
1066 |
struct net_device **new_dev, enum nl80211_iftype type, |
ee3858551 mac80211: mesh da... |
1067 |
struct vif_params *params) |
f0706e828 [MAC80211]: Add m... |
1068 1069 |
{ struct net_device *ndev; |
f0706e828 [MAC80211]: Add m... |
1070 |
struct ieee80211_sub_if_data *sdata = NULL; |
75636525f mac80211: revamp ... |
1071 |
int ret, i; |
f0706e828 [MAC80211]: Add m... |
1072 1073 |
ASSERT_RTNL(); |
75636525f mac80211: revamp ... |
1074 |
|
55d990592 mac80211: allocat... |
1075 1076 |
ndev = alloc_netdev_mqs(sizeof(*sdata) + local->hw.vif_data_size, name, ieee80211_if_setup, local->hw.queues, 1); |
f0706e828 [MAC80211]: Add m... |
1077 1078 |
if (!ndev) return -ENOMEM; |
a272a7206 mac80211: allow u... |
1079 |
dev_net_set(ndev, wiphy_net(local->hw.wiphy)); |
f0706e828 [MAC80211]: Add m... |
1080 |
|
f3994ecee mac80211: assign ... |
1081 1082 1083 1084 1085 1086 1087 1088 |
ndev->needed_headroom = local->tx_headroom + 4*6 /* four MAC addresses */ + 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */ + 6 /* mesh */ + 8 /* rfc1042/bridge tunnel */ - ETH_HLEN /* ethernet hard_header_len */ + IEEE80211_ENCRYPT_HEADROOM; ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM; |
59e7e7078 mac80211: call de... |
1089 1090 1091 |
ret = dev_alloc_name(ndev, ndev->name); if (ret < 0) goto fail; |
fa9029f8c mac80211: use dif... |
1092 1093 |
ieee80211_assign_perm_addr(local, ndev, type); memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN); |
f0706e828 [MAC80211]: Add m... |
1094 |
SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy)); |
3e122be08 mac80211: make ma... |
1095 1096 |
/* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */ sdata = netdev_priv(ndev); |
f0706e828 [MAC80211]: Add m... |
1097 |
ndev->ieee80211_ptr = &sdata->wdev; |
47846c9b0 mac80211: reduce ... |
1098 1099 |
memcpy(sdata->vif.addr, ndev->dev_addr, ETH_ALEN); memcpy(sdata->name, ndev->name, IFNAMSIZ); |
75636525f mac80211: revamp ... |
1100 1101 |
/* initialise type-independent data */ |
f0706e828 [MAC80211]: Add m... |
1102 |
sdata->wdev.wiphy = local->hw.wiphy; |
f0706e828 [MAC80211]: Add m... |
1103 |
sdata->local = local; |
75636525f mac80211: revamp ... |
1104 |
sdata->dev = ndev; |
685429623 mac80211: Fix cir... |
1105 1106 1107 |
#ifdef CONFIG_INET sdata->arp_filter_state = true; #endif |
75636525f mac80211: revamp ... |
1108 1109 1110 1111 1112 |
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) skb_queue_head_init(&sdata->fragments[i].skb_list); INIT_LIST_HEAD(&sdata->key_list); |
37eb0b164 cfg80211/mac80211... |
1113 1114 1115 1116 1117 1118 |
for (i = 0; i < IEEE80211_NUM_BANDS; i++) { struct ieee80211_supported_band *sband; sband = local->hw.wiphy->bands[i]; sdata->rc_rateidx_mask[i] = sband ? (1 << sband->n_bitrates) - 1 : 0; } |
75636525f mac80211: revamp ... |
1119 1120 1121 |
/* setup type-dependent data */ ieee80211_setup_sdata(sdata, type); |
f0706e828 [MAC80211]: Add m... |
1122 |
|
9bc383de3 cfg80211: introdu... |
1123 1124 1125 1126 1127 |
if (params) { ndev->ieee80211_ptr->use_4addr = params->use_4addr; if (type == NL80211_IFTYPE_STATION) sdata->u.mgd.use_4addr = params->use_4addr; } |
f0706e828 [MAC80211]: Add m... |
1128 1129 1130 |
ret = register_netdevice(ndev); if (ret) goto fail; |
c771c9d8d mac80211: add int... |
1131 |
mutex_lock(&local->iflist_mtx); |
79010420c [PATCH] mac80211:... |
1132 |
list_add_tail_rcu(&sdata->list, &local->interfaces); |
c771c9d8d mac80211: add int... |
1133 |
mutex_unlock(&local->iflist_mtx); |
79010420c [PATCH] mac80211:... |
1134 |
|
f0706e828 [MAC80211]: Add m... |
1135 1136 |
if (new_dev) *new_dev = ndev; |
f0706e828 [MAC80211]: Add m... |
1137 |
|
f0706e828 [MAC80211]: Add m... |
1138 |
return 0; |
75636525f mac80211: revamp ... |
1139 |
fail: |
f0706e828 [MAC80211]: Add m... |
1140 1141 1142 |
free_netdev(ndev); return ret; } |
f698d856f replace net_devic... |
1143 |
void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata) |
f0706e828 [MAC80211]: Add m... |
1144 |
{ |
f0706e828 [MAC80211]: Add m... |
1145 |
ASSERT_RTNL(); |
11a843b7e [MAC80211]: rewor... |
1146 |
|
c771c9d8d mac80211: add int... |
1147 |
mutex_lock(&sdata->local->iflist_mtx); |
75636525f mac80211: revamp ... |
1148 |
list_del_rcu(&sdata->list); |
c771c9d8d mac80211: add int... |
1149 |
mutex_unlock(&sdata->local->iflist_mtx); |
ece1a2e7e mac80211: Remove ... |
1150 1151 |
if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_path_flush_by_iface(sdata); |
75636525f mac80211: revamp ... |
1152 |
synchronize_rcu(); |
f698d856f replace net_devic... |
1153 |
unregister_netdevice(sdata->dev); |
f0706e828 [MAC80211]: Add m... |
1154 |
} |
75636525f mac80211: revamp ... |
1155 1156 1157 1158 1159 |
/* * Remove all interfaces, may only be called at hardware unregistration * time because it doesn't do RCU-safe list removals. */ void ieee80211_remove_interfaces(struct ieee80211_local *local) |
f0706e828 [MAC80211]: Add m... |
1160 |
{ |
75636525f mac80211: revamp ... |
1161 |
struct ieee80211_sub_if_data *sdata, *tmp; |
efe117ab8 mac80211: Speedup... |
1162 |
LIST_HEAD(unreg_list); |
f0706e828 [MAC80211]: Add m... |
1163 1164 |
ASSERT_RTNL(); |
efe117ab8 mac80211: Speedup... |
1165 |
mutex_lock(&local->iflist_mtx); |
75636525f mac80211: revamp ... |
1166 1167 |
list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) { list_del(&sdata->list); |
c771c9d8d mac80211: add int... |
1168 |
|
ece1a2e7e mac80211: Remove ... |
1169 1170 |
if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_path_flush_by_iface(sdata); |
efe117ab8 mac80211: Speedup... |
1171 |
unregister_netdevice_queue(sdata->dev, &unreg_list); |
f0706e828 [MAC80211]: Add m... |
1172 |
} |
efe117ab8 mac80211: Speedup... |
1173 1174 |
mutex_unlock(&local->iflist_mtx); unregister_netdevice_many(&unreg_list); |
5f04d5068 net: Fix more sta... |
1175 |
list_del(&unreg_list); |
f0706e828 [MAC80211]: Add m... |
1176 |
} |
5cff20e6c mac80211: tell dr... |
1177 1178 1179 1180 1181 1182 1183 1184 |
static u32 ieee80211_idle_off(struct ieee80211_local *local, const char *reason) { if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE)) return 0; #ifdef CONFIG_MAC80211_VERBOSE_DEBUG |
0fb9a9ec2 net/mac80211: Use... |
1185 1186 |
wiphy_debug(local->hw.wiphy, "device no longer idle - %s ", reason); |
5cff20e6c mac80211: tell dr... |
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 |
#endif local->hw.conf.flags &= ~IEEE80211_CONF_IDLE; return IEEE80211_CONF_CHANGE_IDLE; } static u32 ieee80211_idle_on(struct ieee80211_local *local) { if (local->hw.conf.flags & IEEE80211_CONF_IDLE) return 0; #ifdef CONFIG_MAC80211_VERBOSE_DEBUG |
0fb9a9ec2 net/mac80211: Use... |
1199 1200 |
wiphy_debug(local->hw.wiphy, "device now idle "); |
5cff20e6c mac80211: tell dr... |
1201 |
#endif |
a80f7c0b0 mac80211: introdu... |
1202 |
drv_flush(local, false); |
5cff20e6c mac80211: tell dr... |
1203 1204 1205 1206 1207 1208 1209 1210 |
local->hw.conf.flags |= IEEE80211_CONF_IDLE; return IEEE80211_CONF_CHANGE_IDLE; } u32 __ieee80211_recalc_idle(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; int count = 0; |
21f835896 mac80211: impleme... |
1211 |
bool working = false, scanning = false, hw_roc = false; |
7da7cc1d4 mac80211: per int... |
1212 |
struct ieee80211_work *wk; |
67408c8c7 mac80211: selecti... |
1213 |
unsigned int led_trig_start = 0, led_trig_stop = 0; |
5cff20e6c mac80211: tell dr... |
1214 |
|
7da7cc1d4 mac80211: per int... |
1215 1216 1217 1218 1219 |
#ifdef CONFIG_PROVE_LOCKING WARN_ON(debug_locks && !lockdep_rtnl_is_held() && !lockdep_is_held(&local->iflist_mtx)); #endif lockdep_assert_held(&local->mtx); |
5cff20e6c mac80211: tell dr... |
1220 1221 |
list_for_each_entry(sdata, &local->interfaces, list) { |
7da7cc1d4 mac80211: per int... |
1222 1223 |
if (!ieee80211_sdata_running(sdata)) { sdata->vif.bss_conf.idle = true; |
5cff20e6c mac80211: tell dr... |
1224 |
continue; |
7da7cc1d4 mac80211: per int... |
1225 1226 1227 |
} sdata->old_idle = sdata->vif.bss_conf.idle; |
5cff20e6c mac80211: tell dr... |
1228 1229 |
/* do not count disabled managed interfaces */ if (sdata->vif.type == NL80211_IFTYPE_STATION && |
7da7cc1d4 mac80211: per int... |
1230 1231 |
!sdata->u.mgd.associated) { sdata->vif.bss_conf.idle = true; |
5cff20e6c mac80211: tell dr... |
1232 |
continue; |
7da7cc1d4 mac80211: per int... |
1233 |
} |
5cff20e6c mac80211: tell dr... |
1234 1235 |
/* do not count unused IBSS interfaces */ if (sdata->vif.type == NL80211_IFTYPE_ADHOC && |
7da7cc1d4 mac80211: per int... |
1236 1237 |
!sdata->u.ibss.ssid_len) { sdata->vif.bss_conf.idle = true; |
5cff20e6c mac80211: tell dr... |
1238 |
continue; |
7da7cc1d4 mac80211: per int... |
1239 |
} |
5cff20e6c mac80211: tell dr... |
1240 1241 1242 |
/* count everything else */ count++; } |
7da7cc1d4 mac80211: per int... |
1243 1244 1245 1246 1247 1248 1249 1250 1251 |
list_for_each_entry(wk, &local->work_list, list) { working = true; wk->sdata->vif.bss_conf.idle = false; } if (local->scan_sdata) { scanning = true; local->scan_sdata->vif.bss_conf.idle = false; } |
21f835896 mac80211: impleme... |
1252 1253 |
if (local->hw_roc_channel) hw_roc = true; |
7da7cc1d4 mac80211: per int... |
1254 1255 1256 1257 1258 1259 1260 |
list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->old_idle == sdata->vif.bss_conf.idle) continue; if (!ieee80211_sdata_running(sdata)) continue; ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IDLE); } |
21f835896 mac80211: impleme... |
1261 |
if (working || scanning || hw_roc) |
67408c8c7 mac80211: selecti... |
1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 |
led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_WORK; else led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_WORK; if (count) led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_CONNECTED; else led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_CONNECTED; ieee80211_mod_tpt_led_trig(local, led_trig_start, led_trig_stop); |
21f835896 mac80211: impleme... |
1272 1273 |
if (hw_roc) return ieee80211_idle_off(local, "hw remain-on-channel"); |
7da7cc1d4 mac80211: per int... |
1274 1275 1276 1277 |
if (working) return ieee80211_idle_off(local, "working"); if (scanning) return ieee80211_idle_off(local, "scanning"); |
5cff20e6c mac80211: tell dr... |
1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 |
if (!count) return ieee80211_idle_on(local); else return ieee80211_idle_off(local, "in use"); return 0; } void ieee80211_recalc_idle(struct ieee80211_local *local) { u32 chg; mutex_lock(&local->iflist_mtx); chg = __ieee80211_recalc_idle(local); mutex_unlock(&local->iflist_mtx); |
58905ca5b mac80211: fix sca... |
1293 1294 |
if (chg) ieee80211_hw_config(local, chg); |
5cff20e6c mac80211: tell dr... |
1295 |
} |
47846c9b0 mac80211: reduce ... |
1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 |
static int netdev_notify(struct notifier_block *nb, unsigned long state, void *ndev) { struct net_device *dev = ndev; struct ieee80211_sub_if_data *sdata; if (state != NETDEV_CHANGENAME) return 0; if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy) return 0; if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid) return 0; sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2f5265e6e mac80211: fix net... |
1314 |
memcpy(sdata->name, dev->name, IFNAMSIZ); |
47846c9b0 mac80211: reduce ... |
1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 |
ieee80211_debugfs_rename_netdev(sdata); return 0; } static struct notifier_block mac80211_netdev_notifier = { .notifier_call = netdev_notify, }; int ieee80211_iface_init(void) { return register_netdevice_notifier(&mac80211_netdev_notifier); } void ieee80211_iface_exit(void) { unregister_netdevice_notifier(&mac80211_netdev_notifier); } |