2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/platform_device.h>
29 #include <linux/debugfs.h>
30 #include <linux/module.h>
31 #include <linux/ktime.h>
32 #include <net/genetlink.h>
33 #include <net/net_namespace.h>
34 #include <net/netns/generic.h>
35 #include "mac80211_hwsim.h"
37 #define WARN_QUEUE 100
40 MODULE_AUTHOR("Jouni Malinen");
41 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
42 MODULE_LICENSE("GPL");
44 static int radios = 2;
45 module_param(radios, int, 0444);
46 MODULE_PARM_DESC(radios, "Number of simulated radios");
48 static int channels = 1;
49 module_param(channels, int, 0444);
50 MODULE_PARM_DESC(channels, "Number of concurrent channels");
52 static bool paged_rx = false;
53 module_param(paged_rx, bool, 0644);
54 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
56 static bool rctbl = false;
57 module_param(rctbl, bool, 0444);
58 MODULE_PARM_DESC(rctbl, "Handle rate control table");
60 static bool support_p2p_device = true;
61 module_param(support_p2p_device, bool, 0444);
62 MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
65 * enum hwsim_regtest - the type of regulatory tests we offer
67 * These are the different values you can use for the regtest
68 * module parameter. This is useful to help test world roaming
69 * and the driver regulatory_hint() call and combinations of these.
70 * If you want to do specific alpha2 regulatory domain tests simply
71 * use the userspace regulatory request as that will be respected as
72 * well without the need of this module parameter. This is designed
73 * only for testing the driver regulatory request, world roaming
74 * and all possible combinations.
76 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
77 * this is the default value.
78 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
79 * hint, only one driver regulatory hint will be sent as such the
80 * secondary radios are expected to follow.
81 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
82 * request with all radios reporting the same regulatory domain.
83 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
84 * different regulatory domains requests. Expected behaviour is for
85 * an intersection to occur but each device will still use their
86 * respective regulatory requested domains. Subsequent radios will
87 * use the resulting intersection.
88 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
89 * this by using a custom beacon-capable regulatory domain for the first
90 * radio. All other device world roam.
91 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
92 * domain requests. All radios will adhere to this custom world regulatory
94 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
95 * domain requests. The first radio will adhere to the first custom world
96 * regulatory domain, the second one to the second custom world regulatory
97 * domain. All other devices will world roam.
98 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
99 * settings, only the first radio will send a regulatory domain request
100 * and use strict settings. The rest of the radios are expected to follow.
101 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
102 * settings. All radios will adhere to this.
103 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
104 * domain settings, combined with secondary driver regulatory domain
105 * settings. The first radio will get a strict regulatory domain setting
106 * using the first driver regulatory request and the second radio will use
107 * non-strict settings using the second driver regulatory request. All
108 * other devices should follow the intersection created between the
110 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
111 * at least 6 radios for a complete test. We will test in this order:
112 * 1 - driver custom world regulatory domain
113 * 2 - second custom world regulatory domain
114 * 3 - first driver regulatory domain request
115 * 4 - second driver regulatory domain request
116 * 5 - strict regulatory domain settings using the third driver regulatory
118 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
119 * regulatory requests.
122 HWSIM_REGTEST_DISABLED = 0,
123 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
124 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
125 HWSIM_REGTEST_DIFF_COUNTRY = 3,
126 HWSIM_REGTEST_WORLD_ROAM = 4,
127 HWSIM_REGTEST_CUSTOM_WORLD = 5,
128 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
129 HWSIM_REGTEST_STRICT_FOLLOW = 7,
130 HWSIM_REGTEST_STRICT_ALL = 8,
131 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
132 HWSIM_REGTEST_ALL = 10,
135 /* Set to one of the HWSIM_REGTEST_* values above */
136 static int regtest = HWSIM_REGTEST_DISABLED;
137 module_param(regtest, int, 0444);
138 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
140 static const char *hwsim_alpha2s[] = {
149 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
153 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
154 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
155 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
156 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
160 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
164 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
165 REG_RULE(5725-10, 5850+10, 40, 0, 30,
170 static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
171 &hwsim_world_regdom_custom_01,
172 &hwsim_world_regdom_custom_02,
175 struct hwsim_vif_priv {
183 #define HWSIM_VIF_MAGIC 0x69537748
185 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
188 WARN(vp->magic != HWSIM_VIF_MAGIC,
189 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
190 vif, vp->magic, vif->addr, vif->type, vif->p2p);
193 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
196 vp->magic = HWSIM_VIF_MAGIC;
199 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
201 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
205 struct hwsim_sta_priv {
209 #define HWSIM_STA_MAGIC 0x6d537749
211 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
213 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
214 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
217 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
219 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
220 sp->magic = HWSIM_STA_MAGIC;
223 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
225 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
229 struct hwsim_chanctx_priv {
233 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
235 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
237 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
241 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
243 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
244 cp->magic = HWSIM_CHANCTX_MAGIC;
247 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
249 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
253 static unsigned int hwsim_net_id;
255 static int hwsim_netgroup;
262 static inline int hwsim_net_get_netgroup(struct net *net)
264 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
266 return hwsim_net->netgroup;
269 static inline void hwsim_net_set_netgroup(struct net *net)
271 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
273 hwsim_net->netgroup = hwsim_netgroup++;
276 static inline u32 hwsim_net_get_wmediumd(struct net *net)
278 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
280 return hwsim_net->wmediumd;
283 static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
285 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
287 hwsim_net->wmediumd = portid;
290 static struct class *hwsim_class;
292 static struct net_device *hwsim_mon; /* global monitor netdev */
294 #define CHAN2G(_freq) { \
295 .band = NL80211_BAND_2GHZ, \
296 .center_freq = (_freq), \
297 .hw_value = (_freq), \
301 #define CHAN5G(_freq) { \
302 .band = NL80211_BAND_5GHZ, \
303 .center_freq = (_freq), \
304 .hw_value = (_freq), \
308 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
309 CHAN2G(2412), /* Channel 1 */
310 CHAN2G(2417), /* Channel 2 */
311 CHAN2G(2422), /* Channel 3 */
312 CHAN2G(2427), /* Channel 4 */
313 CHAN2G(2432), /* Channel 5 */
314 CHAN2G(2437), /* Channel 6 */
315 CHAN2G(2442), /* Channel 7 */
316 CHAN2G(2447), /* Channel 8 */
317 CHAN2G(2452), /* Channel 9 */
318 CHAN2G(2457), /* Channel 10 */
319 CHAN2G(2462), /* Channel 11 */
320 CHAN2G(2467), /* Channel 12 */
321 CHAN2G(2472), /* Channel 13 */
322 CHAN2G(2484), /* Channel 14 */
325 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
326 CHAN5G(5180), /* Channel 36 */
327 CHAN5G(5200), /* Channel 40 */
328 CHAN5G(5220), /* Channel 44 */
329 CHAN5G(5240), /* Channel 48 */
331 CHAN5G(5260), /* Channel 52 */
332 CHAN5G(5280), /* Channel 56 */
333 CHAN5G(5300), /* Channel 60 */
334 CHAN5G(5320), /* Channel 64 */
336 CHAN5G(5500), /* Channel 100 */
337 CHAN5G(5520), /* Channel 104 */
338 CHAN5G(5540), /* Channel 108 */
339 CHAN5G(5560), /* Channel 112 */
340 CHAN5G(5580), /* Channel 116 */
341 CHAN5G(5600), /* Channel 120 */
342 CHAN5G(5620), /* Channel 124 */
343 CHAN5G(5640), /* Channel 128 */
344 CHAN5G(5660), /* Channel 132 */
345 CHAN5G(5680), /* Channel 136 */
346 CHAN5G(5700), /* Channel 140 */
348 CHAN5G(5745), /* Channel 149 */
349 CHAN5G(5765), /* Channel 153 */
350 CHAN5G(5785), /* Channel 157 */
351 CHAN5G(5805), /* Channel 161 */
352 CHAN5G(5825), /* Channel 165 */
353 CHAN5G(5845), /* Channel 169 */
356 static const struct ieee80211_rate hwsim_rates[] = {
358 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
359 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
371 #define OUI_QCA 0x001374
372 #define QCA_NL80211_SUBCMD_TEST 1
373 enum qca_nl80211_vendor_subcmds {
374 QCA_WLAN_VENDOR_ATTR_TEST = 8,
375 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
378 static const struct nla_policy
379 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
380 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
383 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
384 struct wireless_dev *wdev,
385 const void *data, int data_len)
388 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
392 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
393 hwsim_vendor_test_policy, NULL);
396 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
398 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
399 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
401 /* Send a vendor event as a test. Note that this would not normally be
402 * done within a command handler, but rather, based on some other
403 * trigger. For simplicity, this command is used to trigger the event
406 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
408 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
410 /* skb_put() or nla_put() will fill up data within
411 * NL80211_ATTR_VENDOR_DATA.
414 /* Add vendor data */
415 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
417 /* Send the event - this will call nla_nest_end() */
418 cfg80211_vendor_event(skb, GFP_KERNEL);
421 /* Send a response to the command */
422 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
426 /* skb_put() or nla_put() will fill up data within
427 * NL80211_ATTR_VENDOR_DATA
429 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
431 return cfg80211_vendor_cmd_reply(skb);
434 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
436 .info = { .vendor_id = OUI_QCA,
437 .subcmd = QCA_NL80211_SUBCMD_TEST },
438 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
439 .doit = mac80211_hwsim_vendor_cmd_test,
443 /* Advertise support vendor specific events */
444 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
445 { .vendor_id = OUI_QCA, .subcmd = 1 },
448 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
449 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
450 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
451 BIT(NL80211_IFTYPE_P2P_CLIENT) |
452 #ifdef CONFIG_MAC80211_MESH
453 BIT(NL80211_IFTYPE_MESH_POINT) |
455 BIT(NL80211_IFTYPE_AP) |
456 BIT(NL80211_IFTYPE_P2P_GO) },
457 /* must be last, see hwsim_if_comb */
458 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
461 static const struct ieee80211_iface_combination hwsim_if_comb[] = {
463 .limits = hwsim_if_limits,
464 /* remove the last entry which is P2P_DEVICE */
465 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
466 .max_interfaces = 2048,
467 .num_different_channels = 1,
468 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
469 BIT(NL80211_CHAN_WIDTH_20) |
470 BIT(NL80211_CHAN_WIDTH_40) |
471 BIT(NL80211_CHAN_WIDTH_80) |
472 BIT(NL80211_CHAN_WIDTH_160),
476 static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
478 .limits = hwsim_if_limits,
479 .n_limits = ARRAY_SIZE(hwsim_if_limits),
480 .max_interfaces = 2048,
481 .num_different_channels = 1,
482 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
483 BIT(NL80211_CHAN_WIDTH_20) |
484 BIT(NL80211_CHAN_WIDTH_40) |
485 BIT(NL80211_CHAN_WIDTH_80) |
486 BIT(NL80211_CHAN_WIDTH_160),
490 static spinlock_t hwsim_radio_lock;
491 static LIST_HEAD(hwsim_radios);
492 static int hwsim_radio_idx;
494 static struct platform_driver mac80211_hwsim_driver = {
496 .name = "mac80211_hwsim",
500 struct mac80211_hwsim_data {
501 struct list_head list;
502 struct ieee80211_hw *hw;
504 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
505 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
506 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
507 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
508 struct ieee80211_iface_combination if_combination;
510 struct mac_address addresses[2];
513 bool destroy_on_close;
514 struct work_struct destroy_work;
517 const struct ieee80211_regdomain *regd;
519 struct ieee80211_channel *tmp_chan;
520 struct ieee80211_channel *roc_chan;
522 struct delayed_work roc_start;
523 struct delayed_work roc_done;
524 struct delayed_work hw_scan;
525 struct cfg80211_scan_request *hw_scan_request;
526 struct ieee80211_vif *hw_scan_vif;
528 u8 scan_addr[ETH_ALEN];
530 struct ieee80211_channel *channel;
531 unsigned long next_start, start, end;
532 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
533 ARRAY_SIZE(hwsim_channels_5ghz)];
535 struct ieee80211_channel *channel;
536 u64 beacon_int /* beacon interval in us */;
537 unsigned int rx_filter;
538 bool started, idle, scanning;
540 struct tasklet_hrtimer beacon_timer;
542 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
544 bool ps_poll_pending;
545 struct dentry *debugfs;
547 uintptr_t pending_cookie;
548 struct sk_buff_head pending; /* packets pending */
550 * Only radios in the same group can communicate together (the
551 * channel has to match too). Each bit represents a group. A
552 * radio can be in more than one group.
556 /* group shared by radios created in the same netns */
558 /* wmediumd portid responsible for netgroup of this radio */
561 /* difference between this hw's clock and the real clock, in usecs */
564 /* absolute beacon transmission time. Used to cover up "tx" delay. */
577 struct hwsim_radiotap_hdr {
578 struct ieee80211_radiotap_header hdr;
586 struct hwsim_radiotap_ack_hdr {
587 struct ieee80211_radiotap_header hdr;
594 /* MAC80211_HWSIM netlink family */
595 static struct genl_family hwsim_genl_family;
597 enum hwsim_multicast_groups {
601 static const struct genl_multicast_group hwsim_mcgrps[] = {
602 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
605 /* MAC80211_HWSIM netlink policy */
607 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
608 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
609 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
610 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
611 .len = IEEE80211_MAX_DATA_LEN },
612 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
613 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
614 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
615 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
616 .len = IEEE80211_TX_MAX_RATES *
617 sizeof(struct hwsim_tx_rate)},
618 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
619 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
620 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
621 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
622 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
623 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
624 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
625 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
626 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
627 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
628 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
631 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
633 struct ieee80211_channel *chan);
635 /* sysfs attributes */
636 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
638 struct mac80211_hwsim_data *data = dat;
639 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
641 struct ieee80211_pspoll *pspoll;
646 wiphy_debug(data->hw->wiphy,
647 "%s: send PS-Poll to %pM for aid %d\n",
648 __func__, vp->bssid, vp->aid);
650 skb = dev_alloc_skb(sizeof(*pspoll));
653 pspoll = skb_put(skb, sizeof(*pspoll));
654 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
655 IEEE80211_STYPE_PSPOLL |
657 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
658 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
659 memcpy(pspoll->ta, mac, ETH_ALEN);
662 mac80211_hwsim_tx_frame(data->hw, skb,
663 rcu_dereference(vif->chanctx_conf)->def.chan);
667 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
668 struct ieee80211_vif *vif, int ps)
670 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
672 struct ieee80211_hdr *hdr;
677 wiphy_debug(data->hw->wiphy,
678 "%s: send data::nullfunc to %pM ps=%d\n",
679 __func__, vp->bssid, ps);
681 skb = dev_alloc_skb(sizeof(*hdr));
684 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
685 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
686 IEEE80211_STYPE_NULLFUNC |
687 (ps ? IEEE80211_FCTL_PM : 0));
688 hdr->duration_id = cpu_to_le16(0);
689 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
690 memcpy(hdr->addr2, mac, ETH_ALEN);
691 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
694 mac80211_hwsim_tx_frame(data->hw, skb,
695 rcu_dereference(vif->chanctx_conf)->def.chan);
700 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
701 struct ieee80211_vif *vif)
703 struct mac80211_hwsim_data *data = dat;
704 hwsim_send_nullfunc(data, mac, vif, 1);
707 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
708 struct ieee80211_vif *vif)
710 struct mac80211_hwsim_data *data = dat;
711 hwsim_send_nullfunc(data, mac, vif, 0);
714 static int hwsim_fops_ps_read(void *dat, u64 *val)
716 struct mac80211_hwsim_data *data = dat;
721 static int hwsim_fops_ps_write(void *dat, u64 val)
723 struct mac80211_hwsim_data *data = dat;
726 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
727 val != PS_MANUAL_POLL)
734 if (val == PS_MANUAL_POLL) {
735 ieee80211_iterate_active_interfaces_atomic(
736 data->hw, IEEE80211_IFACE_ITER_NORMAL,
737 hwsim_send_ps_poll, data);
738 data->ps_poll_pending = true;
739 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
740 ieee80211_iterate_active_interfaces_atomic(
741 data->hw, IEEE80211_IFACE_ITER_NORMAL,
742 hwsim_send_nullfunc_ps, data);
743 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
744 ieee80211_iterate_active_interfaces_atomic(
745 data->hw, IEEE80211_IFACE_ITER_NORMAL,
746 hwsim_send_nullfunc_no_ps, data);
753 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
756 static int hwsim_write_simulate_radar(void *dat, u64 val)
758 struct mac80211_hwsim_data *data = dat;
760 ieee80211_radar_detected(data->hw);
765 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
766 hwsim_write_simulate_radar, "%llu\n");
768 static int hwsim_fops_group_read(void *dat, u64 *val)
770 struct mac80211_hwsim_data *data = dat;
775 static int hwsim_fops_group_write(void *dat, u64 val)
777 struct mac80211_hwsim_data *data = dat;
782 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
783 hwsim_fops_group_read, hwsim_fops_group_write,
786 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
787 struct net_device *dev)
789 /* TODO: allow packet injection */
794 static inline u64 mac80211_hwsim_get_tsf_raw(void)
796 return ktime_to_us(ktime_get_real());
799 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
801 u64 now = mac80211_hwsim_get_tsf_raw();
802 return cpu_to_le64(now + data->tsf_offset);
805 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
806 struct ieee80211_vif *vif)
808 struct mac80211_hwsim_data *data = hw->priv;
809 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
812 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
813 struct ieee80211_vif *vif, u64 tsf)
815 struct mac80211_hwsim_data *data = hw->priv;
816 u64 now = mac80211_hwsim_get_tsf(hw, vif);
817 u32 bcn_int = data->beacon_int;
818 u64 delta = abs(tsf - now);
820 /* adjust after beaconing with new timestamp at old TBTT */
822 data->tsf_offset += delta;
823 data->bcn_delta = do_div(delta, bcn_int);
825 data->tsf_offset -= delta;
826 data->bcn_delta = -(s64)do_div(delta, bcn_int);
830 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
831 struct sk_buff *tx_skb,
832 struct ieee80211_channel *chan)
834 struct mac80211_hwsim_data *data = hw->priv;
836 struct hwsim_radiotap_hdr *hdr;
838 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
839 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
841 if (WARN_ON(!txrate))
844 if (!netif_running(hwsim_mon))
847 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
851 hdr = skb_push(skb, sizeof(*hdr));
852 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
854 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
855 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
856 (1 << IEEE80211_RADIOTAP_RATE) |
857 (1 << IEEE80211_RADIOTAP_TSFT) |
858 (1 << IEEE80211_RADIOTAP_CHANNEL));
859 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
861 hdr->rt_rate = txrate->bitrate / 5;
862 hdr->rt_channel = cpu_to_le16(chan->center_freq);
863 flags = IEEE80211_CHAN_2GHZ;
864 if (txrate->flags & IEEE80211_RATE_ERP_G)
865 flags |= IEEE80211_CHAN_OFDM;
867 flags |= IEEE80211_CHAN_CCK;
868 hdr->rt_chbitmask = cpu_to_le16(flags);
870 skb->dev = hwsim_mon;
871 skb_reset_mac_header(skb);
872 skb->ip_summed = CHECKSUM_UNNECESSARY;
873 skb->pkt_type = PACKET_OTHERHOST;
874 skb->protocol = htons(ETH_P_802_2);
875 memset(skb->cb, 0, sizeof(skb->cb));
880 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
884 struct hwsim_radiotap_ack_hdr *hdr;
886 struct ieee80211_hdr *hdr11;
888 if (!netif_running(hwsim_mon))
891 skb = dev_alloc_skb(100);
895 hdr = skb_put(skb, sizeof(*hdr));
896 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
898 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
899 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
900 (1 << IEEE80211_RADIOTAP_CHANNEL));
903 hdr->rt_channel = cpu_to_le16(chan->center_freq);
904 flags = IEEE80211_CHAN_2GHZ;
905 hdr->rt_chbitmask = cpu_to_le16(flags);
907 hdr11 = skb_put(skb, 10);
908 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
909 IEEE80211_STYPE_ACK);
910 hdr11->duration_id = cpu_to_le16(0);
911 memcpy(hdr11->addr1, addr, ETH_ALEN);
913 skb->dev = hwsim_mon;
914 skb_reset_mac_header(skb);
915 skb->ip_summed = CHECKSUM_UNNECESSARY;
916 skb->pkt_type = PACKET_OTHERHOST;
917 skb->protocol = htons(ETH_P_802_2);
918 memset(skb->cb, 0, sizeof(skb->cb));
922 struct mac80211_hwsim_addr_match_data {
927 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
928 struct ieee80211_vif *vif)
930 struct mac80211_hwsim_addr_match_data *md = data;
932 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
936 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
939 struct mac80211_hwsim_addr_match_data md = {
943 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
946 memcpy(md.addr, addr, ETH_ALEN);
948 ieee80211_iterate_active_interfaces_atomic(data->hw,
949 IEEE80211_IFACE_ITER_NORMAL,
950 mac80211_hwsim_addr_iter,
956 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
965 /* TODO: accept (some) Beacons by default and other frames only
966 * if pending PS-Poll has been sent */
969 /* Allow unicast frames to own address if there is a pending
971 if (data->ps_poll_pending &&
972 mac80211_hwsim_addr_match(data, skb->data + 4)) {
973 data->ps_poll_pending = false;
982 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
983 struct sk_buff *skb, int portid)
990 for_each_net_rcu(net) {
991 if (data->netgroup == hwsim_net_get_netgroup(net)) {
992 res = genlmsg_unicast(net, skb, portid);
1005 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1006 struct sk_buff *my_skb,
1009 struct sk_buff *skb;
1010 struct mac80211_hwsim_data *data = hw->priv;
1011 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1012 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1014 unsigned int hwsim_flags = 0;
1016 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1019 if (data->ps != PS_DISABLED)
1020 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1021 /* If the queue contains MAX_QUEUE skb's drop some */
1022 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1023 /* Droping until WARN_QUEUE level */
1024 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1025 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1030 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1032 goto nla_put_failure;
1034 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1036 if (msg_head == NULL) {
1037 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
1038 goto nla_put_failure;
1041 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1042 ETH_ALEN, data->addresses[1].addr))
1043 goto nla_put_failure;
1045 /* We get the skb->data */
1046 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1047 goto nla_put_failure;
1049 /* We get the flags for this transmission, and we translate them to
1052 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1053 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1055 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1056 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1058 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1059 goto nla_put_failure;
1061 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1062 goto nla_put_failure;
1064 /* We get the tx control (rate and retries) info*/
1066 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1067 tx_attempts[i].idx = info->status.rates[i].idx;
1068 tx_attempts[i].count = info->status.rates[i].count;
1071 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1072 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1074 goto nla_put_failure;
1076 /* We create a cookie to identify this skb */
1077 data->pending_cookie++;
1078 cookie = data->pending_cookie;
1079 info->rate_driver_data[0] = (void *)cookie;
1080 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1081 goto nla_put_failure;
1083 genlmsg_end(skb, msg_head);
1084 if (hwsim_unicast_netgroup(data, skb, dst_portid))
1085 goto err_free_txskb;
1087 /* Enqueue the packet */
1088 skb_queue_tail(&data->pending, my_skb);
1090 data->tx_bytes += my_skb->len;
1096 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1097 ieee80211_free_txskb(hw, my_skb);
1101 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1102 struct ieee80211_channel *c2)
1107 return c1->center_freq == c2->center_freq;
1110 struct tx_iter_data {
1111 struct ieee80211_channel *channel;
1115 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1116 struct ieee80211_vif *vif)
1118 struct tx_iter_data *data = _data;
1120 if (!vif->chanctx_conf)
1123 if (!hwsim_chans_compat(data->channel,
1124 rcu_dereference(vif->chanctx_conf)->def.chan))
1127 data->receive = true;
1130 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1133 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1135 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1136 * (but you should use a valid OUI, not that)
1138 * If anyone wants to 'donate' a radiotap OUI/subns code
1139 * please send a patch removing this #ifdef and changing
1140 * the values accordingly.
1142 #ifdef HWSIM_RADIOTAP_OUI
1143 struct ieee80211_vendor_radiotap *rtap;
1146 * Note that this code requires the headroom in the SKB
1147 * that was allocated earlier.
1149 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1150 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1151 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1152 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1156 * Radiotap vendor namespaces can (and should) also be
1157 * split into fields by using the standard radiotap
1158 * presence bitmap mechanism. Use just BIT(0) here for
1159 * the presence bitmap.
1161 rtap->present = BIT(0);
1162 /* We have 8 bytes of (dummy) data */
1164 /* For testing, also require it to be aligned */
1166 /* And also test that padding works, 4 bytes */
1169 memcpy(rtap->data, "ABCDEFGH", 8);
1170 /* make sure to clear padding, mac80211 doesn't */
1171 memset(rtap->data + 8, 0, 4);
1173 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1177 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1178 struct sk_buff *skb,
1179 struct ieee80211_channel *chan)
1181 struct mac80211_hwsim_data *data = hw->priv, *data2;
1183 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1184 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1185 struct ieee80211_rx_status rx_status;
1188 memset(&rx_status, 0, sizeof(rx_status));
1189 rx_status.flag |= RX_FLAG_MACTIME_START;
1190 rx_status.freq = chan->center_freq;
1191 rx_status.band = chan->band;
1192 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1193 rx_status.rate_idx =
1194 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1196 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1197 rx_status.encoding = RX_ENC_VHT;
1199 rx_status.rate_idx = info->control.rates[0].idx;
1200 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1201 rx_status.encoding = RX_ENC_HT;
1203 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1204 rx_status.bw = RATE_INFO_BW_40;
1205 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1206 rx_status.bw = RATE_INFO_BW_80;
1207 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1208 rx_status.bw = RATE_INFO_BW_160;
1210 rx_status.bw = RATE_INFO_BW_20;
1211 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1212 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1213 /* TODO: simulate real signal strength (and optional packet loss) */
1214 rx_status.signal = -50;
1215 if (info->control.vif)
1216 rx_status.signal += info->control.vif->bss_conf.txpower;
1218 if (data->ps != PS_DISABLED)
1219 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1221 /* release the skb's source info */
1229 * Get absolute mactime here so all HWs RX at the "same time", and
1230 * absolute TX time for beacon mactime so the timestamp matches.
1231 * Giving beacons a different mactime than non-beacons looks messy, but
1232 * it helps the Toffset be exact and a ~10us mactime discrepancy
1233 * probably doesn't really matter.
1235 if (ieee80211_is_beacon(hdr->frame_control) ||
1236 ieee80211_is_probe_resp(hdr->frame_control))
1237 now = data->abs_bcn_ts;
1239 now = mac80211_hwsim_get_tsf_raw();
1241 /* Copy skb to all enabled radios that are on the current frequency */
1242 spin_lock(&hwsim_radio_lock);
1243 list_for_each_entry(data2, &hwsim_radios, list) {
1244 struct sk_buff *nskb;
1245 struct tx_iter_data tx_iter_data = {
1253 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1254 !hwsim_ps_rx_ok(data2, skb))
1257 if (!(data->group & data2->group))
1260 if (data->netgroup != data2->netgroup)
1263 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1264 !hwsim_chans_compat(chan, data2->channel)) {
1265 ieee80211_iterate_active_interfaces_atomic(
1266 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1267 mac80211_hwsim_tx_iter, &tx_iter_data);
1268 if (!tx_iter_data.receive)
1273 * reserve some space for our vendor and the normal
1274 * radiotap header, since we're copying anyway
1276 if (skb->len < PAGE_SIZE && paged_rx) {
1277 struct page *page = alloc_page(GFP_ATOMIC);
1282 nskb = dev_alloc_skb(128);
1288 memcpy(page_address(page), skb->data, skb->len);
1289 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1291 nskb = skb_copy(skb, GFP_ATOMIC);
1296 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1299 rx_status.mactime = now + data2->tsf_offset;
1301 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1303 mac80211_hwsim_add_vendor_rtap(nskb);
1306 data2->rx_bytes += nskb->len;
1307 ieee80211_rx_irqsafe(data2->hw, nskb);
1309 spin_unlock(&hwsim_radio_lock);
1314 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1315 struct ieee80211_tx_control *control,
1316 struct sk_buff *skb)
1318 struct mac80211_hwsim_data *data = hw->priv;
1319 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1320 struct ieee80211_hdr *hdr = (void *)skb->data;
1321 struct ieee80211_chanctx_conf *chanctx_conf;
1322 struct ieee80211_channel *channel;
1326 if (WARN_ON(skb->len < 10)) {
1327 /* Should not happen; just a sanity check for addr1 use */
1328 ieee80211_free_txskb(hw, skb);
1332 if (!data->use_chanctx) {
1333 channel = data->channel;
1334 } else if (txi->hw_queue == 4) {
1335 channel = data->tmp_chan;
1337 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1339 channel = chanctx_conf->def.chan;
1344 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1345 ieee80211_free_txskb(hw, skb);
1349 if (data->idle && !data->tmp_chan) {
1350 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
1351 ieee80211_free_txskb(hw, skb);
1355 if (txi->control.vif)
1356 hwsim_check_magic(txi->control.vif);
1358 hwsim_check_sta_magic(control->sta);
1360 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1361 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1363 ARRAY_SIZE(txi->control.rates));
1365 txi->rate_driver_data[0] = channel;
1367 if (skb->len >= 24 + 8 &&
1368 ieee80211_is_probe_resp(hdr->frame_control)) {
1369 /* fake header transmission time */
1370 struct ieee80211_mgmt *mgmt;
1371 struct ieee80211_rate *txrate;
1374 mgmt = (struct ieee80211_mgmt *)skb->data;
1375 txrate = ieee80211_get_tx_rate(hw, txi);
1376 ts = mac80211_hwsim_get_tsf_raw();
1377 mgmt->u.probe_resp.timestamp =
1378 cpu_to_le64(ts + data->tsf_offset +
1379 24 * 8 * 10 / txrate->bitrate);
1382 mac80211_hwsim_monitor_rx(hw, skb, channel);
1384 /* wmediumd mode check */
1385 _portid = ACCESS_ONCE(data->wmediumd);
1388 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1390 /* NO wmediumd detected, perfect medium simulation */
1392 data->tx_bytes += skb->len;
1393 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1395 if (ack && skb->len >= 16)
1396 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1398 ieee80211_tx_info_clear_status(txi);
1400 /* frame was transmitted at most favorable rate at first attempt */
1401 txi->control.rates[0].count = 1;
1402 txi->control.rates[1].idx = -1;
1404 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1405 txi->flags |= IEEE80211_TX_STAT_ACK;
1406 ieee80211_tx_status_irqsafe(hw, skb);
1410 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1412 struct mac80211_hwsim_data *data = hw->priv;
1413 wiphy_debug(hw->wiphy, "%s\n", __func__);
1414 data->started = true;
1419 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1421 struct mac80211_hwsim_data *data = hw->priv;
1422 data->started = false;
1423 tasklet_hrtimer_cancel(&data->beacon_timer);
1424 wiphy_debug(hw->wiphy, "%s\n", __func__);
1428 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1429 struct ieee80211_vif *vif)
1431 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1432 __func__, ieee80211_vif_type_p2p(vif),
1434 hwsim_set_magic(vif);
1437 vif->hw_queue[IEEE80211_AC_VO] = 0;
1438 vif->hw_queue[IEEE80211_AC_VI] = 1;
1439 vif->hw_queue[IEEE80211_AC_BE] = 2;
1440 vif->hw_queue[IEEE80211_AC_BK] = 3;
1446 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1447 struct ieee80211_vif *vif,
1448 enum nl80211_iftype newtype,
1451 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1452 wiphy_debug(hw->wiphy,
1453 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1454 __func__, ieee80211_vif_type_p2p(vif),
1455 newtype, vif->addr);
1456 hwsim_check_magic(vif);
1459 * interface may change from non-AP to AP in
1460 * which case this needs to be set up again
1467 static void mac80211_hwsim_remove_interface(
1468 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1470 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1471 __func__, ieee80211_vif_type_p2p(vif),
1473 hwsim_check_magic(vif);
1474 hwsim_clear_magic(vif);
1477 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1478 struct sk_buff *skb,
1479 struct ieee80211_channel *chan)
1481 struct mac80211_hwsim_data *data = hw->priv;
1482 u32 _pid = ACCESS_ONCE(data->wmediumd);
1484 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1485 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1486 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1488 ARRAY_SIZE(txi->control.rates));
1491 mac80211_hwsim_monitor_rx(hw, skb, chan);
1494 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1496 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1500 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1501 struct ieee80211_vif *vif)
1503 struct mac80211_hwsim_data *data = arg;
1504 struct ieee80211_hw *hw = data->hw;
1505 struct ieee80211_tx_info *info;
1506 struct ieee80211_rate *txrate;
1507 struct ieee80211_mgmt *mgmt;
1508 struct sk_buff *skb;
1510 hwsim_check_magic(vif);
1512 if (vif->type != NL80211_IFTYPE_AP &&
1513 vif->type != NL80211_IFTYPE_MESH_POINT &&
1514 vif->type != NL80211_IFTYPE_ADHOC)
1517 skb = ieee80211_beacon_get(hw, vif);
1520 info = IEEE80211_SKB_CB(skb);
1521 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1522 ieee80211_get_tx_rates(vif, NULL, skb,
1523 info->control.rates,
1524 ARRAY_SIZE(info->control.rates));
1526 txrate = ieee80211_get_tx_rate(hw, info);
1528 mgmt = (struct ieee80211_mgmt *) skb->data;
1529 /* fake header transmission time */
1530 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1531 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1533 24 * 8 * 10 / txrate->bitrate);
1535 mac80211_hwsim_tx_frame(hw, skb,
1536 rcu_dereference(vif->chanctx_conf)->def.chan);
1538 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1539 ieee80211_csa_finish(vif);
1542 static enum hrtimer_restart
1543 mac80211_hwsim_beacon(struct hrtimer *timer)
1545 struct mac80211_hwsim_data *data =
1546 container_of(timer, struct mac80211_hwsim_data,
1547 beacon_timer.timer);
1548 struct ieee80211_hw *hw = data->hw;
1549 u64 bcn_int = data->beacon_int;
1555 ieee80211_iterate_active_interfaces_atomic(
1556 hw, IEEE80211_IFACE_ITER_NORMAL,
1557 mac80211_hwsim_beacon_tx, data);
1559 /* beacon at new TBTT + beacon interval */
1560 if (data->bcn_delta) {
1561 bcn_int -= data->bcn_delta;
1562 data->bcn_delta = 0;
1565 next_bcn = ktime_add(hrtimer_get_expires(timer),
1566 ns_to_ktime(bcn_int * 1000));
1567 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1569 return HRTIMER_NORESTART;
1572 static const char * const hwsim_chanwidths[] = {
1573 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1574 [NL80211_CHAN_WIDTH_20] = "ht20",
1575 [NL80211_CHAN_WIDTH_40] = "ht40",
1576 [NL80211_CHAN_WIDTH_80] = "vht80",
1577 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1578 [NL80211_CHAN_WIDTH_160] = "vht160",
1581 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1583 struct mac80211_hwsim_data *data = hw->priv;
1584 struct ieee80211_conf *conf = &hw->conf;
1585 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1586 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1587 [IEEE80211_SMPS_OFF] = "off",
1588 [IEEE80211_SMPS_STATIC] = "static",
1589 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1593 if (conf->chandef.chan)
1594 wiphy_debug(hw->wiphy,
1595 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1597 conf->chandef.chan->center_freq,
1598 conf->chandef.center_freq1,
1599 conf->chandef.center_freq2,
1600 hwsim_chanwidths[conf->chandef.width],
1601 !!(conf->flags & IEEE80211_CONF_IDLE),
1602 !!(conf->flags & IEEE80211_CONF_PS),
1603 smps_modes[conf->smps_mode]);
1605 wiphy_debug(hw->wiphy,
1606 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1608 !!(conf->flags & IEEE80211_CONF_IDLE),
1609 !!(conf->flags & IEEE80211_CONF_PS),
1610 smps_modes[conf->smps_mode]);
1612 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1614 WARN_ON(conf->chandef.chan && data->use_chanctx);
1616 mutex_lock(&data->mutex);
1617 if (data->scanning && conf->chandef.chan) {
1618 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1619 if (data->survey_data[idx].channel == data->channel) {
1620 data->survey_data[idx].start =
1621 data->survey_data[idx].next_start;
1622 data->survey_data[idx].end = jiffies;
1627 data->channel = conf->chandef.chan;
1629 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1630 if (data->survey_data[idx].channel &&
1631 data->survey_data[idx].channel != data->channel)
1633 data->survey_data[idx].channel = data->channel;
1634 data->survey_data[idx].next_start = jiffies;
1638 data->channel = conf->chandef.chan;
1640 mutex_unlock(&data->mutex);
1642 if (!data->started || !data->beacon_int)
1643 tasklet_hrtimer_cancel(&data->beacon_timer);
1644 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1645 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1646 u32 bcn_int = data->beacon_int;
1647 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1649 tasklet_hrtimer_start(&data->beacon_timer,
1650 ns_to_ktime(until_tbtt * 1000),
1658 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1659 unsigned int changed_flags,
1660 unsigned int *total_flags,u64 multicast)
1662 struct mac80211_hwsim_data *data = hw->priv;
1664 wiphy_debug(hw->wiphy, "%s\n", __func__);
1666 data->rx_filter = 0;
1667 if (*total_flags & FIF_ALLMULTI)
1668 data->rx_filter |= FIF_ALLMULTI;
1670 *total_flags = data->rx_filter;
1673 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1674 struct ieee80211_vif *vif)
1676 unsigned int *count = data;
1677 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1683 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1684 struct ieee80211_vif *vif,
1685 struct ieee80211_bss_conf *info,
1688 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1689 struct mac80211_hwsim_data *data = hw->priv;
1691 hwsim_check_magic(vif);
1693 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1694 __func__, changed, vif->addr);
1696 if (changed & BSS_CHANGED_BSSID) {
1697 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1698 __func__, info->bssid);
1699 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1702 if (changed & BSS_CHANGED_ASSOC) {
1703 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1704 info->assoc, info->aid);
1705 vp->assoc = info->assoc;
1706 vp->aid = info->aid;
1709 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1710 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1711 info->enable_beacon, info->beacon_int);
1712 vp->bcn_en = info->enable_beacon;
1713 if (data->started &&
1714 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1715 info->enable_beacon) {
1716 u64 tsf, until_tbtt;
1718 data->beacon_int = info->beacon_int * 1024;
1719 tsf = mac80211_hwsim_get_tsf(hw, vif);
1720 bcn_int = data->beacon_int;
1721 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1722 tasklet_hrtimer_start(&data->beacon_timer,
1723 ns_to_ktime(until_tbtt * 1000),
1725 } else if (!info->enable_beacon) {
1726 unsigned int count = 0;
1727 ieee80211_iterate_active_interfaces_atomic(
1728 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1729 mac80211_hwsim_bcn_en_iter, &count);
1730 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1733 tasklet_hrtimer_cancel(&data->beacon_timer);
1734 data->beacon_int = 0;
1739 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1740 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1741 info->use_cts_prot);
1744 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1745 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1746 info->use_short_preamble);
1749 if (changed & BSS_CHANGED_ERP_SLOT) {
1750 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1753 if (changed & BSS_CHANGED_HT) {
1754 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1755 info->ht_operation_mode);
1758 if (changed & BSS_CHANGED_BASIC_RATES) {
1759 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1760 (unsigned long long) info->basic_rates);
1763 if (changed & BSS_CHANGED_TXPOWER)
1764 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1767 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1768 struct ieee80211_vif *vif,
1769 struct ieee80211_sta *sta)
1771 hwsim_check_magic(vif);
1772 hwsim_set_sta_magic(sta);
1777 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1778 struct ieee80211_vif *vif,
1779 struct ieee80211_sta *sta)
1781 hwsim_check_magic(vif);
1782 hwsim_clear_sta_magic(sta);
1787 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1788 struct ieee80211_vif *vif,
1789 enum sta_notify_cmd cmd,
1790 struct ieee80211_sta *sta)
1792 hwsim_check_magic(vif);
1795 case STA_NOTIFY_SLEEP:
1796 case STA_NOTIFY_AWAKE:
1797 /* TODO: make good use of these flags */
1800 WARN(1, "Invalid sta notify: %d\n", cmd);
1805 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1806 struct ieee80211_sta *sta,
1809 hwsim_check_sta_magic(sta);
1813 static int mac80211_hwsim_conf_tx(
1814 struct ieee80211_hw *hw,
1815 struct ieee80211_vif *vif, u16 queue,
1816 const struct ieee80211_tx_queue_params *params)
1818 wiphy_debug(hw->wiphy,
1819 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1821 params->txop, params->cw_min,
1822 params->cw_max, params->aifs);
1826 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1827 struct survey_info *survey)
1829 struct mac80211_hwsim_data *hwsim = hw->priv;
1831 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1834 mutex_lock(&hwsim->mutex);
1835 survey->channel = hwsim->survey_data[idx].channel;
1836 if (!survey->channel) {
1837 mutex_unlock(&hwsim->mutex);
1842 * Magically conjured dummy values --- this is only ok for simulated hardware.
1844 * A real driver which cannot determine real values noise MUST NOT
1845 * report any, especially not a magically conjured ones :-)
1847 survey->filled = SURVEY_INFO_NOISE_DBM |
1849 SURVEY_INFO_TIME_BUSY;
1850 survey->noise = -92;
1852 jiffies_to_msecs(hwsim->survey_data[idx].end -
1853 hwsim->survey_data[idx].start);
1854 /* report 12.5% of channel time is used */
1855 survey->time_busy = survey->time/8;
1856 mutex_unlock(&hwsim->mutex);
1861 #ifdef CONFIG_NL80211_TESTMODE
1863 * This section contains example code for using netlink
1864 * attributes with the testmode command in nl80211.
1867 /* These enums need to be kept in sync with userspace */
1868 enum hwsim_testmode_attr {
1869 __HWSIM_TM_ATTR_INVALID = 0,
1870 HWSIM_TM_ATTR_CMD = 1,
1871 HWSIM_TM_ATTR_PS = 2,
1874 __HWSIM_TM_ATTR_AFTER_LAST,
1875 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1878 enum hwsim_testmode_cmd {
1879 HWSIM_TM_CMD_SET_PS = 0,
1880 HWSIM_TM_CMD_GET_PS = 1,
1881 HWSIM_TM_CMD_STOP_QUEUES = 2,
1882 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1885 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1886 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1887 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1890 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1891 struct ieee80211_vif *vif,
1892 void *data, int len)
1894 struct mac80211_hwsim_data *hwsim = hw->priv;
1895 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1896 struct sk_buff *skb;
1899 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1900 hwsim_testmode_policy, NULL);
1904 if (!tb[HWSIM_TM_ATTR_CMD])
1907 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1908 case HWSIM_TM_CMD_SET_PS:
1909 if (!tb[HWSIM_TM_ATTR_PS])
1911 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1912 return hwsim_fops_ps_write(hwsim, ps);
1913 case HWSIM_TM_CMD_GET_PS:
1914 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1915 nla_total_size(sizeof(u32)));
1918 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1919 goto nla_put_failure;
1920 return cfg80211_testmode_reply(skb);
1921 case HWSIM_TM_CMD_STOP_QUEUES:
1922 ieee80211_stop_queues(hw);
1924 case HWSIM_TM_CMD_WAKE_QUEUES:
1925 ieee80211_wake_queues(hw);
1937 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1938 struct ieee80211_vif *vif,
1939 struct ieee80211_ampdu_params *params)
1941 struct ieee80211_sta *sta = params->sta;
1942 enum ieee80211_ampdu_mlme_action action = params->action;
1943 u16 tid = params->tid;
1946 case IEEE80211_AMPDU_TX_START:
1947 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1949 case IEEE80211_AMPDU_TX_STOP_CONT:
1950 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1951 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1952 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1954 case IEEE80211_AMPDU_TX_OPERATIONAL:
1956 case IEEE80211_AMPDU_RX_START:
1957 case IEEE80211_AMPDU_RX_STOP:
1966 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1967 struct ieee80211_vif *vif,
1968 u32 queues, bool drop)
1970 /* Not implemented, queues only on kernel side */
1973 static void hw_scan_work(struct work_struct *work)
1975 struct mac80211_hwsim_data *hwsim =
1976 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1977 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1980 mutex_lock(&hwsim->mutex);
1981 if (hwsim->scan_chan_idx >= req->n_channels) {
1982 struct cfg80211_scan_info info = {
1986 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1987 ieee80211_scan_completed(hwsim->hw, &info);
1988 hwsim->hw_scan_request = NULL;
1989 hwsim->hw_scan_vif = NULL;
1990 hwsim->tmp_chan = NULL;
1991 mutex_unlock(&hwsim->mutex);
1995 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1996 req->channels[hwsim->scan_chan_idx]->center_freq);
1998 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1999 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2000 IEEE80211_CHAN_RADAR) ||
2006 for (i = 0; i < req->n_ssids; i++) {
2007 struct sk_buff *probe;
2008 struct ieee80211_mgmt *mgmt;
2010 probe = ieee80211_probereq_get(hwsim->hw,
2013 req->ssids[i].ssid_len,
2018 mgmt = (struct ieee80211_mgmt *) probe->data;
2019 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2020 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2023 skb_put_data(probe, req->ie, req->ie_len);
2026 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2031 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2032 msecs_to_jiffies(dwell));
2033 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2034 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2035 hwsim->survey_data[hwsim->scan_chan_idx].end =
2036 jiffies + msecs_to_jiffies(dwell);
2037 hwsim->scan_chan_idx++;
2038 mutex_unlock(&hwsim->mutex);
2041 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2042 struct ieee80211_vif *vif,
2043 struct ieee80211_scan_request *hw_req)
2045 struct mac80211_hwsim_data *hwsim = hw->priv;
2046 struct cfg80211_scan_request *req = &hw_req->req;
2048 mutex_lock(&hwsim->mutex);
2049 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2050 mutex_unlock(&hwsim->mutex);
2053 hwsim->hw_scan_request = req;
2054 hwsim->hw_scan_vif = vif;
2055 hwsim->scan_chan_idx = 0;
2056 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2057 get_random_mask_addr(hwsim->scan_addr,
2058 hw_req->req.mac_addr,
2059 hw_req->req.mac_addr_mask);
2061 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2062 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2063 mutex_unlock(&hwsim->mutex);
2065 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
2067 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2072 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2073 struct ieee80211_vif *vif)
2075 struct mac80211_hwsim_data *hwsim = hw->priv;
2076 struct cfg80211_scan_info info = {
2080 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
2082 cancel_delayed_work_sync(&hwsim->hw_scan);
2084 mutex_lock(&hwsim->mutex);
2085 ieee80211_scan_completed(hwsim->hw, &info);
2086 hwsim->tmp_chan = NULL;
2087 hwsim->hw_scan_request = NULL;
2088 hwsim->hw_scan_vif = NULL;
2089 mutex_unlock(&hwsim->mutex);
2092 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2093 struct ieee80211_vif *vif,
2096 struct mac80211_hwsim_data *hwsim = hw->priv;
2098 mutex_lock(&hwsim->mutex);
2100 if (hwsim->scanning) {
2101 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
2105 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
2107 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2108 hwsim->scanning = true;
2109 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2112 mutex_unlock(&hwsim->mutex);
2115 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2116 struct ieee80211_vif *vif)
2118 struct mac80211_hwsim_data *hwsim = hw->priv;
2120 mutex_lock(&hwsim->mutex);
2122 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
2123 hwsim->scanning = false;
2124 eth_zero_addr(hwsim->scan_addr);
2126 mutex_unlock(&hwsim->mutex);
2129 static void hw_roc_start(struct work_struct *work)
2131 struct mac80211_hwsim_data *hwsim =
2132 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2134 mutex_lock(&hwsim->mutex);
2136 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2137 hwsim->tmp_chan = hwsim->roc_chan;
2138 ieee80211_ready_on_channel(hwsim->hw);
2140 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2141 msecs_to_jiffies(hwsim->roc_duration));
2143 mutex_unlock(&hwsim->mutex);
2146 static void hw_roc_done(struct work_struct *work)
2148 struct mac80211_hwsim_data *hwsim =
2149 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2151 mutex_lock(&hwsim->mutex);
2152 ieee80211_remain_on_channel_expired(hwsim->hw);
2153 hwsim->tmp_chan = NULL;
2154 mutex_unlock(&hwsim->mutex);
2156 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2159 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2160 struct ieee80211_vif *vif,
2161 struct ieee80211_channel *chan,
2163 enum ieee80211_roc_type type)
2165 struct mac80211_hwsim_data *hwsim = hw->priv;
2167 mutex_lock(&hwsim->mutex);
2168 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2169 mutex_unlock(&hwsim->mutex);
2173 hwsim->roc_chan = chan;
2174 hwsim->roc_duration = duration;
2175 mutex_unlock(&hwsim->mutex);
2177 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2178 chan->center_freq, duration);
2179 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2184 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2186 struct mac80211_hwsim_data *hwsim = hw->priv;
2188 cancel_delayed_work_sync(&hwsim->roc_start);
2189 cancel_delayed_work_sync(&hwsim->roc_done);
2191 mutex_lock(&hwsim->mutex);
2192 hwsim->tmp_chan = NULL;
2193 mutex_unlock(&hwsim->mutex);
2195 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2200 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2201 struct ieee80211_chanctx_conf *ctx)
2203 hwsim_set_chanctx_magic(ctx);
2204 wiphy_debug(hw->wiphy,
2205 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2206 ctx->def.chan->center_freq, ctx->def.width,
2207 ctx->def.center_freq1, ctx->def.center_freq2);
2211 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2212 struct ieee80211_chanctx_conf *ctx)
2214 wiphy_debug(hw->wiphy,
2215 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2216 ctx->def.chan->center_freq, ctx->def.width,
2217 ctx->def.center_freq1, ctx->def.center_freq2);
2218 hwsim_check_chanctx_magic(ctx);
2219 hwsim_clear_chanctx_magic(ctx);
2222 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2223 struct ieee80211_chanctx_conf *ctx,
2226 hwsim_check_chanctx_magic(ctx);
2227 wiphy_debug(hw->wiphy,
2228 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2229 ctx->def.chan->center_freq, ctx->def.width,
2230 ctx->def.center_freq1, ctx->def.center_freq2);
2233 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2234 struct ieee80211_vif *vif,
2235 struct ieee80211_chanctx_conf *ctx)
2237 hwsim_check_magic(vif);
2238 hwsim_check_chanctx_magic(ctx);
2243 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2244 struct ieee80211_vif *vif,
2245 struct ieee80211_chanctx_conf *ctx)
2247 hwsim_check_magic(vif);
2248 hwsim_check_chanctx_magic(ctx);
2251 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2262 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2264 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2265 struct ieee80211_vif *vif,
2268 if (sset == ETH_SS_STATS)
2269 memcpy(data, *mac80211_hwsim_gstrings_stats,
2270 sizeof(mac80211_hwsim_gstrings_stats));
2273 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2274 struct ieee80211_vif *vif, int sset)
2276 if (sset == ETH_SS_STATS)
2277 return MAC80211_HWSIM_SSTATS_LEN;
2281 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2282 struct ieee80211_vif *vif,
2283 struct ethtool_stats *stats, u64 *data)
2285 struct mac80211_hwsim_data *ar = hw->priv;
2288 data[i++] = ar->tx_pkts;
2289 data[i++] = ar->tx_bytes;
2290 data[i++] = ar->rx_pkts;
2291 data[i++] = ar->rx_bytes;
2292 data[i++] = ar->tx_dropped;
2293 data[i++] = ar->tx_failed;
2295 data[i++] = ar->group;
2297 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2300 #define HWSIM_COMMON_OPS \
2301 .tx = mac80211_hwsim_tx, \
2302 .start = mac80211_hwsim_start, \
2303 .stop = mac80211_hwsim_stop, \
2304 .add_interface = mac80211_hwsim_add_interface, \
2305 .change_interface = mac80211_hwsim_change_interface, \
2306 .remove_interface = mac80211_hwsim_remove_interface, \
2307 .config = mac80211_hwsim_config, \
2308 .configure_filter = mac80211_hwsim_configure_filter, \
2309 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2310 .sta_add = mac80211_hwsim_sta_add, \
2311 .sta_remove = mac80211_hwsim_sta_remove, \
2312 .sta_notify = mac80211_hwsim_sta_notify, \
2313 .set_tim = mac80211_hwsim_set_tim, \
2314 .conf_tx = mac80211_hwsim_conf_tx, \
2315 .get_survey = mac80211_hwsim_get_survey, \
2316 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2317 .ampdu_action = mac80211_hwsim_ampdu_action, \
2318 .flush = mac80211_hwsim_flush, \
2319 .get_tsf = mac80211_hwsim_get_tsf, \
2320 .set_tsf = mac80211_hwsim_set_tsf, \
2321 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2322 .get_et_stats = mac80211_hwsim_get_et_stats, \
2323 .get_et_strings = mac80211_hwsim_get_et_strings,
2325 static const struct ieee80211_ops mac80211_hwsim_ops = {
2327 .sw_scan_start = mac80211_hwsim_sw_scan,
2328 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2331 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2333 .hw_scan = mac80211_hwsim_hw_scan,
2334 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2335 .sw_scan_start = NULL,
2336 .sw_scan_complete = NULL,
2337 .remain_on_channel = mac80211_hwsim_roc,
2338 .cancel_remain_on_channel = mac80211_hwsim_croc,
2339 .add_chanctx = mac80211_hwsim_add_chanctx,
2340 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2341 .change_chanctx = mac80211_hwsim_change_chanctx,
2342 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2343 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2346 struct hwsim_new_radio_params {
2347 unsigned int channels;
2348 const char *reg_alpha2;
2349 const struct ieee80211_regdomain *regd;
2353 bool destroy_on_close;
2358 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2359 struct genl_info *info)
2362 genl_notify(&hwsim_genl_family, mcast_skb, info,
2363 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2365 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2366 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2369 static int append_radio_msg(struct sk_buff *skb, int id,
2370 struct hwsim_new_radio_params *param)
2374 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2378 if (param->channels) {
2379 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2384 if (param->reg_alpha2) {
2385 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2394 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2395 if (hwsim_world_regdom_custom[i] != param->regd)
2398 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2405 if (param->reg_strict) {
2406 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2411 if (param->p2p_device) {
2412 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2417 if (param->use_chanctx) {
2418 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2423 if (param->hwname) {
2424 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2425 strlen(param->hwname), param->hwname);
2433 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2434 struct hwsim_new_radio_params *param)
2436 struct sk_buff *mcast_skb;
2439 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2443 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2444 HWSIM_CMD_NEW_RADIO);
2448 if (append_radio_msg(mcast_skb, id, param) < 0)
2451 genlmsg_end(mcast_skb, data);
2453 hwsim_mcast_config_msg(mcast_skb, info);
2457 genlmsg_cancel(mcast_skb, data);
2458 nlmsg_free(mcast_skb);
2461 static int mac80211_hwsim_new_radio(struct genl_info *info,
2462 struct hwsim_new_radio_params *param)
2466 struct mac80211_hwsim_data *data;
2467 struct ieee80211_hw *hw;
2468 enum nl80211_band band;
2469 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2473 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2476 spin_lock_bh(&hwsim_radio_lock);
2477 idx = hwsim_radio_idx++;
2478 spin_unlock_bh(&hwsim_radio_lock);
2480 if (param->use_chanctx)
2481 ops = &mac80211_hwsim_mchan_ops;
2482 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2484 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2489 /* ieee80211_alloc_hw_nm may have used a default name */
2490 param->hwname = wiphy_name(hw->wiphy);
2493 net = genl_info_net(info);
2496 wiphy_net_set(hw->wiphy, net);
2501 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2502 if (IS_ERR(data->dev)) {
2504 "mac80211_hwsim: device_create failed (%ld)\n",
2505 PTR_ERR(data->dev));
2507 goto failed_drvdata;
2509 data->dev->driver = &mac80211_hwsim_driver.driver;
2510 err = device_bind_driver(data->dev);
2512 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2517 skb_queue_head_init(&data->pending);
2519 SET_IEEE80211_DEV(hw, data->dev);
2520 eth_zero_addr(addr);
2524 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2525 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2526 data->addresses[1].addr[0] |= 0x40;
2527 hw->wiphy->n_addresses = 2;
2528 hw->wiphy->addresses = data->addresses;
2530 data->channels = param->channels;
2531 data->use_chanctx = param->use_chanctx;
2533 data->destroy_on_close = param->destroy_on_close;
2535 data->portid = info->snd_portid;
2537 if (data->use_chanctx) {
2538 hw->wiphy->max_scan_ssids = 255;
2539 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2540 hw->wiphy->max_remain_on_channel_duration = 1000;
2541 hw->wiphy->iface_combinations = &data->if_combination;
2542 if (param->p2p_device)
2543 data->if_combination = hwsim_if_comb_p2p_dev[0];
2545 data->if_combination = hwsim_if_comb[0];
2546 hw->wiphy->n_iface_combinations = 1;
2547 /* For channels > 1 DFS is not allowed */
2548 data->if_combination.radar_detect_widths = 0;
2549 data->if_combination.num_different_channels = data->channels;
2550 } else if (param->p2p_device) {
2551 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2552 hw->wiphy->n_iface_combinations =
2553 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
2555 hw->wiphy->iface_combinations = hwsim_if_comb;
2556 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2559 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
2560 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2561 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2564 hw->offchannel_tx_hw_queue = 4;
2565 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2566 BIT(NL80211_IFTYPE_AP) |
2567 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2568 BIT(NL80211_IFTYPE_P2P_GO) |
2569 BIT(NL80211_IFTYPE_ADHOC) |
2570 BIT(NL80211_IFTYPE_MESH_POINT);
2572 if (param->p2p_device)
2573 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
2575 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2576 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2577 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2578 ieee80211_hw_set(hw, QUEUE_CONTROL);
2579 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2580 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2581 ieee80211_hw_set(hw, MFP_CAPABLE);
2582 ieee80211_hw_set(hw, SIGNAL_DBM);
2583 ieee80211_hw_set(hw, TDLS_WIDER_BW);
2585 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
2587 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2588 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2589 WIPHY_FLAG_AP_UAPSD |
2590 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2591 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2592 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2593 NL80211_FEATURE_STATIC_SMPS |
2594 NL80211_FEATURE_DYNAMIC_SMPS |
2595 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2596 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
2598 /* ask mac80211 to reserve space for magic */
2599 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2600 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2601 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2603 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2604 sizeof(hwsim_channels_2ghz));
2605 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2606 sizeof(hwsim_channels_5ghz));
2607 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2609 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
2610 struct ieee80211_supported_band *sband = &data->bands[band];
2612 case NL80211_BAND_2GHZ:
2613 sband->channels = data->channels_2ghz;
2614 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2615 sband->bitrates = data->rates;
2616 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2618 case NL80211_BAND_5GHZ:
2619 sband->channels = data->channels_5ghz;
2620 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2621 sband->bitrates = data->rates + 4;
2622 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2624 sband->vht_cap.vht_supported = true;
2625 sband->vht_cap.cap =
2626 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2627 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2628 IEEE80211_VHT_CAP_RXLDPC |
2629 IEEE80211_VHT_CAP_SHORT_GI_80 |
2630 IEEE80211_VHT_CAP_SHORT_GI_160 |
2631 IEEE80211_VHT_CAP_TXSTBC |
2632 IEEE80211_VHT_CAP_RXSTBC_1 |
2633 IEEE80211_VHT_CAP_RXSTBC_2 |
2634 IEEE80211_VHT_CAP_RXSTBC_3 |
2635 IEEE80211_VHT_CAP_RXSTBC_4 |
2636 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2637 sband->vht_cap.vht_mcs.rx_mcs_map =
2638 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2639 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
2640 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2641 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2642 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
2643 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2644 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2645 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
2646 sband->vht_cap.vht_mcs.tx_mcs_map =
2647 sband->vht_cap.vht_mcs.rx_mcs_map;
2653 sband->ht_cap.ht_supported = true;
2654 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2655 IEEE80211_HT_CAP_GRN_FLD |
2656 IEEE80211_HT_CAP_SGI_20 |
2657 IEEE80211_HT_CAP_SGI_40 |
2658 IEEE80211_HT_CAP_DSSSCCK40;
2659 sband->ht_cap.ampdu_factor = 0x3;
2660 sband->ht_cap.ampdu_density = 0x6;
2661 memset(&sband->ht_cap.mcs, 0,
2662 sizeof(sband->ht_cap.mcs));
2663 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2664 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2665 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2667 hw->wiphy->bands[band] = sband;
2670 /* By default all radios belong to the first group */
2672 mutex_init(&data->mutex);
2674 data->netgroup = hwsim_net_get_netgroup(net);
2676 /* Enable frame retransmissions for lossy channels */
2678 hw->max_rate_tries = 11;
2680 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2681 hw->wiphy->n_vendor_commands =
2682 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2683 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2684 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2686 if (param->reg_strict)
2687 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2689 data->regd = param->regd;
2690 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2691 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
2692 /* give the regulatory workqueue a chance to run */
2693 schedule_timeout_interruptible(1);
2697 ieee80211_hw_set(hw, NO_AUTO_VIF);
2699 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2701 err = ieee80211_register_hw(hw);
2703 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2708 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2710 if (param->reg_alpha2) {
2711 data->alpha2[0] = param->reg_alpha2[0];
2712 data->alpha2[1] = param->reg_alpha2[1];
2713 regulatory_hint(hw->wiphy, param->reg_alpha2);
2716 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2717 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2718 debugfs_create_file("group", 0666, data->debugfs, data,
2720 if (!data->use_chanctx)
2721 debugfs_create_file("dfs_simulate_radar", 0222,
2723 data, &hwsim_simulate_radar);
2725 tasklet_hrtimer_init(&data->beacon_timer,
2726 mac80211_hwsim_beacon,
2727 CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
2729 spin_lock_bh(&hwsim_radio_lock);
2730 list_add_tail(&data->list, &hwsim_radios);
2731 spin_unlock_bh(&hwsim_radio_lock);
2734 hwsim_mcast_new_radio(idx, info, param);
2739 device_release_driver(data->dev);
2741 device_unregister(data->dev);
2743 ieee80211_free_hw(hw);
2748 static void hwsim_mcast_del_radio(int id, const char *hwname,
2749 struct genl_info *info)
2751 struct sk_buff *skb;
2755 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2759 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2760 HWSIM_CMD_DEL_RADIO);
2764 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2768 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2773 genlmsg_end(skb, data);
2775 hwsim_mcast_config_msg(skb, info);
2783 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2785 struct genl_info *info)
2787 hwsim_mcast_del_radio(data->idx, hwname, info);
2788 debugfs_remove_recursive(data->debugfs);
2789 ieee80211_unregister_hw(data->hw);
2790 device_release_driver(data->dev);
2791 device_unregister(data->dev);
2792 ieee80211_free_hw(data->hw);
2795 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2796 struct mac80211_hwsim_data *data,
2797 u32 portid, u32 seq,
2798 struct netlink_callback *cb, int flags)
2801 struct hwsim_new_radio_params param = { };
2802 int res = -EMSGSIZE;
2804 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2805 HWSIM_CMD_GET_RADIO);
2810 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2812 if (data->alpha2[0] && data->alpha2[1])
2813 param.reg_alpha2 = data->alpha2;
2815 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2816 REGULATORY_STRICT_REG);
2817 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2818 BIT(NL80211_IFTYPE_P2P_DEVICE));
2819 param.use_chanctx = data->use_chanctx;
2820 param.regd = data->regd;
2821 param.channels = data->channels;
2822 param.hwname = wiphy_name(data->hw->wiphy);
2824 res = append_radio_msg(skb, data->idx, ¶m);
2828 genlmsg_end(skb, hdr);
2832 genlmsg_cancel(skb, hdr);
2836 static void mac80211_hwsim_free(void)
2838 struct mac80211_hwsim_data *data;
2840 spin_lock_bh(&hwsim_radio_lock);
2841 while ((data = list_first_entry_or_null(&hwsim_radios,
2842 struct mac80211_hwsim_data,
2844 list_del(&data->list);
2845 spin_unlock_bh(&hwsim_radio_lock);
2846 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2848 spin_lock_bh(&hwsim_radio_lock);
2850 spin_unlock_bh(&hwsim_radio_lock);
2851 class_destroy(hwsim_class);
2854 static const struct net_device_ops hwsim_netdev_ops = {
2855 .ndo_start_xmit = hwsim_mon_xmit,
2856 .ndo_set_mac_address = eth_mac_addr,
2857 .ndo_validate_addr = eth_validate_addr,
2860 static void hwsim_mon_setup(struct net_device *dev)
2862 dev->netdev_ops = &hwsim_netdev_ops;
2863 dev->needs_free_netdev = true;
2865 dev->priv_flags |= IFF_NO_QUEUE;
2866 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2867 eth_zero_addr(dev->dev_addr);
2868 dev->dev_addr[0] = 0x12;
2871 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
2873 struct mac80211_hwsim_data *data;
2874 bool _found = false;
2876 spin_lock_bh(&hwsim_radio_lock);
2877 list_for_each_entry(data, &hwsim_radios, list) {
2878 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
2883 spin_unlock_bh(&hwsim_radio_lock);
2891 static void hwsim_register_wmediumd(struct net *net, u32 portid)
2893 struct mac80211_hwsim_data *data;
2895 hwsim_net_set_wmediumd(net, portid);
2897 spin_lock_bh(&hwsim_radio_lock);
2898 list_for_each_entry(data, &hwsim_radios, list) {
2899 if (data->netgroup == hwsim_net_get_netgroup(net))
2900 data->wmediumd = portid;
2902 spin_unlock_bh(&hwsim_radio_lock);
2905 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2906 struct genl_info *info)
2909 struct ieee80211_hdr *hdr;
2910 struct mac80211_hwsim_data *data2;
2911 struct ieee80211_tx_info *txi;
2912 struct hwsim_tx_rate *tx_attempts;
2914 struct sk_buff *skb, *tmp;
2916 unsigned int hwsim_flags;
2920 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
2921 !info->attrs[HWSIM_ATTR_FLAGS] ||
2922 !info->attrs[HWSIM_ATTR_COOKIE] ||
2923 !info->attrs[HWSIM_ATTR_SIGNAL] ||
2924 !info->attrs[HWSIM_ATTR_TX_INFO])
2927 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
2928 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
2929 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
2931 data2 = get_hwsim_data_ref_from_addr(src);
2935 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2938 if (info->snd_portid != data2->wmediumd)
2941 /* look for the skb matching the cookie passed back from user */
2942 skb_queue_walk_safe(&data2->pending, skb, tmp) {
2945 txi = IEEE80211_SKB_CB(skb);
2946 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2948 if (skb_cookie == ret_skb_cookie) {
2949 skb_unlink(skb, &data2->pending);
2959 /* Tx info received because the frame was broadcasted on user space,
2960 so we get all the necessary info: tx attempts and skb control buff */
2962 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2963 info->attrs[HWSIM_ATTR_TX_INFO]);
2965 /* now send back TX status */
2966 txi = IEEE80211_SKB_CB(skb);
2968 ieee80211_tx_info_clear_status(txi);
2970 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2971 txi->status.rates[i].idx = tx_attempts[i].idx;
2972 txi->status.rates[i].count = tx_attempts[i].count;
2973 /*txi->status.rates[i].flags = 0;*/
2976 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2978 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2979 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2980 if (skb->len >= 16) {
2981 hdr = (struct ieee80211_hdr *) skb->data;
2982 mac80211_hwsim_monitor_ack(data2->channel,
2985 txi->flags |= IEEE80211_TX_STAT_ACK;
2987 ieee80211_tx_status_irqsafe(data2->hw, skb);
2994 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2995 struct genl_info *info)
2997 struct mac80211_hwsim_data *data2;
2998 struct ieee80211_rx_status rx_status;
3002 struct sk_buff *skb = NULL;
3004 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
3005 !info->attrs[HWSIM_ATTR_FRAME] ||
3006 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3007 !info->attrs[HWSIM_ATTR_SIGNAL])
3010 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
3011 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
3012 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
3014 /* Allocate new skb here */
3015 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3019 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
3023 skb_put_data(skb, frame_data, frame_data_len);
3025 data2 = get_hwsim_data_ref_from_addr(dst);
3029 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3032 if (info->snd_portid != data2->wmediumd)
3035 /* check if radio is configured properly */
3037 if (data2->idle || !data2->started)
3040 /* A frame is received from user space */
3041 memset(&rx_status, 0, sizeof(rx_status));
3042 if (info->attrs[HWSIM_ATTR_FREQ]) {
3043 /* throw away off-channel packets, but allow both the temporary
3044 * ("hw" scan/remain-on-channel) and regular channel, since the
3045 * internal datapath also allows this
3047 mutex_lock(&data2->mutex);
3048 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3050 if (rx_status.freq != data2->channel->center_freq &&
3051 (!data2->tmp_chan ||
3052 rx_status.freq != data2->tmp_chan->center_freq)) {
3053 mutex_unlock(&data2->mutex);
3056 mutex_unlock(&data2->mutex);
3058 rx_status.freq = data2->channel->center_freq;
3061 rx_status.band = data2->channel->band;
3062 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3063 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3065 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
3067 data2->rx_bytes += skb->len;
3068 ieee80211_rx_irqsafe(data2->hw, skb);
3072 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
3078 static int hwsim_register_received_nl(struct sk_buff *skb_2,
3079 struct genl_info *info)
3081 struct net *net = genl_info_net(info);
3082 struct mac80211_hwsim_data *data;
3085 spin_lock_bh(&hwsim_radio_lock);
3086 list_for_each_entry(data, &hwsim_radios, list)
3087 chans = max(chans, data->channels);
3088 spin_unlock_bh(&hwsim_radio_lock);
3090 /* In the future we should revise the userspace API and allow it
3091 * to set a flag that it does support multi-channel, then we can
3092 * let this pass conditionally on the flag.
3093 * For current userspace, prohibit it since it won't work right.
3098 if (hwsim_net_get_wmediumd(net))
3101 hwsim_register_wmediumd(net, info->snd_portid);
3103 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
3104 "switching to wmediumd mode with pid %d\n", info->snd_portid);
3109 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
3111 struct hwsim_new_radio_params param = { 0 };
3112 const char *hwname = NULL;
3114 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3115 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3116 param.channels = channels;
3117 param.destroy_on_close =
3118 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
3120 if (info->attrs[HWSIM_ATTR_CHANNELS])
3121 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
3123 if (info->attrs[HWSIM_ATTR_NO_VIF])
3124 param.no_vif = true;
3126 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3127 hwname = kasprintf(GFP_KERNEL, "%.*s",
3128 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3129 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3132 param.hwname = hwname;
3135 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
3136 param.use_chanctx = true;
3138 param.use_chanctx = (param.channels > 1);
3140 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
3142 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
3144 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3145 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3147 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3149 param.regd = hwsim_world_regdom_custom[idx];
3152 return mac80211_hwsim_new_radio(info, ¶m);
3155 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
3157 struct mac80211_hwsim_data *data;
3159 const char *hwname = NULL;
3161 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
3162 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3163 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3164 hwname = kasprintf(GFP_KERNEL, "%.*s",
3165 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3166 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3172 spin_lock_bh(&hwsim_radio_lock);
3173 list_for_each_entry(data, &hwsim_radios, list) {
3175 if (data->idx != idx)
3179 strcmp(hwname, wiphy_name(data->hw->wiphy)))
3183 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3186 list_del(&data->list);
3187 spin_unlock_bh(&hwsim_radio_lock);
3188 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3193 spin_unlock_bh(&hwsim_radio_lock);
3199 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3201 struct mac80211_hwsim_data *data;
3202 struct sk_buff *skb;
3203 int idx, res = -ENODEV;
3205 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3207 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3209 spin_lock_bh(&hwsim_radio_lock);
3210 list_for_each_entry(data, &hwsim_radios, list) {
3211 if (data->idx != idx)
3214 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3217 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3223 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3224 info->snd_seq, NULL, 0);
3230 genlmsg_reply(skb, info);
3235 spin_unlock_bh(&hwsim_radio_lock);
3240 static int hwsim_dump_radio_nl(struct sk_buff *skb,
3241 struct netlink_callback *cb)
3243 int idx = cb->args[0];
3244 struct mac80211_hwsim_data *data = NULL;
3247 spin_lock_bh(&hwsim_radio_lock);
3249 if (idx == hwsim_radio_idx)
3252 list_for_each_entry(data, &hwsim_radios, list) {
3253 if (data->idx < idx)
3256 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3259 res = mac80211_hwsim_get_radio(skb, data,
3260 NETLINK_CB(cb->skb).portid,
3261 cb->nlh->nlmsg_seq, cb,
3266 idx = data->idx + 1;
3272 spin_unlock_bh(&hwsim_radio_lock);
3276 /* Generic Netlink operations array */
3277 static const struct genl_ops hwsim_ops[] = {
3279 .cmd = HWSIM_CMD_REGISTER,
3280 .policy = hwsim_genl_policy,
3281 .doit = hwsim_register_received_nl,
3282 .flags = GENL_UNS_ADMIN_PERM,
3285 .cmd = HWSIM_CMD_FRAME,
3286 .policy = hwsim_genl_policy,
3287 .doit = hwsim_cloned_frame_received_nl,
3290 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3291 .policy = hwsim_genl_policy,
3292 .doit = hwsim_tx_info_frame_received_nl,
3295 .cmd = HWSIM_CMD_NEW_RADIO,
3296 .policy = hwsim_genl_policy,
3297 .doit = hwsim_new_radio_nl,
3298 .flags = GENL_UNS_ADMIN_PERM,
3301 .cmd = HWSIM_CMD_DEL_RADIO,
3302 .policy = hwsim_genl_policy,
3303 .doit = hwsim_del_radio_nl,
3304 .flags = GENL_UNS_ADMIN_PERM,
3307 .cmd = HWSIM_CMD_GET_RADIO,
3308 .policy = hwsim_genl_policy,
3309 .doit = hwsim_get_radio_nl,
3310 .dumpit = hwsim_dump_radio_nl,
3314 static struct genl_family hwsim_genl_family __ro_after_init = {
3315 .name = "MAC80211_HWSIM",
3317 .maxattr = HWSIM_ATTR_MAX,
3319 .module = THIS_MODULE,
3321 .n_ops = ARRAY_SIZE(hwsim_ops),
3322 .mcgrps = hwsim_mcgrps,
3323 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3326 static void destroy_radio(struct work_struct *work)
3328 struct mac80211_hwsim_data *data =
3329 container_of(work, struct mac80211_hwsim_data, destroy_work);
3331 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
3334 static void remove_user_radios(u32 portid)
3336 struct mac80211_hwsim_data *entry, *tmp;
3338 spin_lock_bh(&hwsim_radio_lock);
3339 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3340 if (entry->destroy_on_close && entry->portid == portid) {
3341 list_del(&entry->list);
3342 INIT_WORK(&entry->destroy_work, destroy_radio);
3343 schedule_work(&entry->destroy_work);
3346 spin_unlock_bh(&hwsim_radio_lock);
3349 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3350 unsigned long state,
3353 struct netlink_notify *notify = _notify;
3355 if (state != NETLINK_URELEASE)
3358 remove_user_radios(notify->portid);
3360 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
3361 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3362 " socket, switching to perfect channel medium\n");
3363 hwsim_register_wmediumd(notify->net, 0);
3369 static struct notifier_block hwsim_netlink_notifier = {
3370 .notifier_call = mac80211_hwsim_netlink_notify,
3373 static int __init hwsim_init_netlink(void)
3377 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3379 rc = genl_register_family(&hwsim_genl_family);
3383 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3385 genl_unregister_family(&hwsim_genl_family);
3392 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
3396 static __net_init int hwsim_init_net(struct net *net)
3398 hwsim_net_set_netgroup(net);
3403 static void __net_exit hwsim_exit_net(struct net *net)
3405 struct mac80211_hwsim_data *data, *tmp;
3407 spin_lock_bh(&hwsim_radio_lock);
3408 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3409 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3412 /* Radios created in init_net are returned to init_net. */
3413 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3416 list_del(&data->list);
3417 INIT_WORK(&data->destroy_work, destroy_radio);
3418 schedule_work(&data->destroy_work);
3420 spin_unlock_bh(&hwsim_radio_lock);
3423 static struct pernet_operations hwsim_net_ops = {
3424 .init = hwsim_init_net,
3425 .exit = hwsim_exit_net,
3426 .id = &hwsim_net_id,
3427 .size = sizeof(struct hwsim_net),
3430 static void hwsim_exit_netlink(void)
3432 /* unregister the notifier */
3433 netlink_unregister_notifier(&hwsim_netlink_notifier);
3434 /* unregister the family */
3435 genl_unregister_family(&hwsim_genl_family);
3438 static int __init init_mac80211_hwsim(void)
3442 if (radios < 0 || radios > 100)
3448 spin_lock_init(&hwsim_radio_lock);
3450 err = register_pernet_device(&hwsim_net_ops);
3454 err = platform_driver_register(&mac80211_hwsim_driver);
3456 goto out_unregister_pernet;
3458 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3459 if (IS_ERR(hwsim_class)) {
3460 err = PTR_ERR(hwsim_class);
3461 goto out_unregister_driver;
3464 err = hwsim_init_netlink();
3466 goto out_unregister_driver;
3468 for (i = 0; i < radios; i++) {
3469 struct hwsim_new_radio_params param = { 0 };
3471 param.channels = channels;
3474 case HWSIM_REGTEST_DIFF_COUNTRY:
3475 if (i < ARRAY_SIZE(hwsim_alpha2s))
3476 param.reg_alpha2 = hwsim_alpha2s[i];
3478 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3480 param.reg_alpha2 = hwsim_alpha2s[0];
3482 case HWSIM_REGTEST_STRICT_ALL:
3483 param.reg_strict = true;
3484 case HWSIM_REGTEST_DRIVER_REG_ALL:
3485 param.reg_alpha2 = hwsim_alpha2s[0];
3487 case HWSIM_REGTEST_WORLD_ROAM:
3489 param.regd = &hwsim_world_regdom_custom_01;
3491 case HWSIM_REGTEST_CUSTOM_WORLD:
3492 param.regd = &hwsim_world_regdom_custom_01;
3494 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3496 param.regd = &hwsim_world_regdom_custom_01;
3498 param.regd = &hwsim_world_regdom_custom_02;
3500 case HWSIM_REGTEST_STRICT_FOLLOW:
3502 param.reg_strict = true;
3503 param.reg_alpha2 = hwsim_alpha2s[0];
3506 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
3508 param.reg_strict = true;
3509 param.reg_alpha2 = hwsim_alpha2s[0];
3510 } else if (i == 1) {
3511 param.reg_alpha2 = hwsim_alpha2s[1];
3514 case HWSIM_REGTEST_ALL:
3517 param.regd = &hwsim_world_regdom_custom_01;
3520 param.regd = &hwsim_world_regdom_custom_02;
3523 param.reg_alpha2 = hwsim_alpha2s[0];
3526 param.reg_alpha2 = hwsim_alpha2s[1];
3529 param.reg_strict = true;
3530 param.reg_alpha2 = hwsim_alpha2s[2];
3538 param.p2p_device = support_p2p_device;
3539 param.use_chanctx = channels > 1;
3541 err = mac80211_hwsim_new_radio(NULL, ¶m);
3543 goto out_free_radios;
3546 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3548 if (hwsim_mon == NULL) {
3550 goto out_free_radios;
3554 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3557 goto out_free_radios;
3560 err = register_netdevice(hwsim_mon);
3570 free_netdev(hwsim_mon);
3572 mac80211_hwsim_free();
3573 out_unregister_driver:
3574 platform_driver_unregister(&mac80211_hwsim_driver);
3575 out_unregister_pernet:
3576 unregister_pernet_device(&hwsim_net_ops);
3579 module_init(init_mac80211_hwsim);
3581 static void __exit exit_mac80211_hwsim(void)
3583 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
3585 hwsim_exit_netlink();
3587 mac80211_hwsim_free();
3588 unregister_netdev(hwsim_mon);
3589 platform_driver_unregister(&mac80211_hwsim_driver);
3590 unregister_pernet_device(&hwsim_net_ops);
3592 module_exit(exit_mac80211_hwsim);