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 "mac80211_hwsim.h"
35 #define WARN_QUEUE 100
38 MODULE_AUTHOR("Jouni Malinen");
39 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
40 MODULE_LICENSE("GPL");
42 static u32 wmediumd_portid;
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 struct class *hwsim_class;
255 static struct net_device *hwsim_mon; /* global monitor netdev */
257 #define CHAN2G(_freq) { \
258 .band = IEEE80211_BAND_2GHZ, \
259 .center_freq = (_freq), \
260 .hw_value = (_freq), \
264 #define CHAN5G(_freq) { \
265 .band = IEEE80211_BAND_5GHZ, \
266 .center_freq = (_freq), \
267 .hw_value = (_freq), \
271 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
272 CHAN2G(2412), /* Channel 1 */
273 CHAN2G(2417), /* Channel 2 */
274 CHAN2G(2422), /* Channel 3 */
275 CHAN2G(2427), /* Channel 4 */
276 CHAN2G(2432), /* Channel 5 */
277 CHAN2G(2437), /* Channel 6 */
278 CHAN2G(2442), /* Channel 7 */
279 CHAN2G(2447), /* Channel 8 */
280 CHAN2G(2452), /* Channel 9 */
281 CHAN2G(2457), /* Channel 10 */
282 CHAN2G(2462), /* Channel 11 */
283 CHAN2G(2467), /* Channel 12 */
284 CHAN2G(2472), /* Channel 13 */
285 CHAN2G(2484), /* Channel 14 */
288 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
289 CHAN5G(5180), /* Channel 36 */
290 CHAN5G(5200), /* Channel 40 */
291 CHAN5G(5220), /* Channel 44 */
292 CHAN5G(5240), /* Channel 48 */
294 CHAN5G(5260), /* Channel 52 */
295 CHAN5G(5280), /* Channel 56 */
296 CHAN5G(5300), /* Channel 60 */
297 CHAN5G(5320), /* Channel 64 */
299 CHAN5G(5500), /* Channel 100 */
300 CHAN5G(5520), /* Channel 104 */
301 CHAN5G(5540), /* Channel 108 */
302 CHAN5G(5560), /* Channel 112 */
303 CHAN5G(5580), /* Channel 116 */
304 CHAN5G(5600), /* Channel 120 */
305 CHAN5G(5620), /* Channel 124 */
306 CHAN5G(5640), /* Channel 128 */
307 CHAN5G(5660), /* Channel 132 */
308 CHAN5G(5680), /* Channel 136 */
309 CHAN5G(5700), /* Channel 140 */
311 CHAN5G(5745), /* Channel 149 */
312 CHAN5G(5765), /* Channel 153 */
313 CHAN5G(5785), /* Channel 157 */
314 CHAN5G(5805), /* Channel 161 */
315 CHAN5G(5825), /* Channel 165 */
318 static const struct ieee80211_rate hwsim_rates[] = {
320 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
321 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
322 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
333 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
334 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
335 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
336 BIT(NL80211_IFTYPE_P2P_CLIENT) |
337 #ifdef CONFIG_MAC80211_MESH
338 BIT(NL80211_IFTYPE_MESH_POINT) |
340 BIT(NL80211_IFTYPE_AP) |
341 BIT(NL80211_IFTYPE_P2P_GO) },
342 /* must be last, see hwsim_if_comb */
343 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
346 static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
347 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
350 static const struct ieee80211_iface_combination hwsim_if_comb[] = {
352 .limits = hwsim_if_limits,
353 /* remove the last entry which is P2P_DEVICE */
354 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
355 .max_interfaces = 2048,
356 .num_different_channels = 1,
359 .limits = hwsim_if_dfs_limits,
360 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
362 .num_different_channels = 1,
363 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
364 BIT(NL80211_CHAN_WIDTH_20) |
365 BIT(NL80211_CHAN_WIDTH_40) |
366 BIT(NL80211_CHAN_WIDTH_80) |
367 BIT(NL80211_CHAN_WIDTH_160),
371 static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
373 .limits = hwsim_if_limits,
374 .n_limits = ARRAY_SIZE(hwsim_if_limits),
375 .max_interfaces = 2048,
376 .num_different_channels = 1,
379 .limits = hwsim_if_dfs_limits,
380 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
382 .num_different_channels = 1,
383 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
384 BIT(NL80211_CHAN_WIDTH_20) |
385 BIT(NL80211_CHAN_WIDTH_40) |
386 BIT(NL80211_CHAN_WIDTH_80) |
387 BIT(NL80211_CHAN_WIDTH_160),
391 static spinlock_t hwsim_radio_lock;
392 static struct list_head hwsim_radios;
393 static int hwsim_radio_idx;
395 static struct platform_driver mac80211_hwsim_driver = {
397 .name = "mac80211_hwsim",
401 struct mac80211_hwsim_data {
402 struct list_head list;
403 struct ieee80211_hw *hw;
405 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
406 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
407 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
408 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
409 struct ieee80211_iface_combination if_combination;
411 struct mac_address addresses[2];
414 bool destroy_on_close;
415 struct work_struct destroy_work;
418 const struct ieee80211_regdomain *regd;
420 struct ieee80211_channel *tmp_chan;
421 struct delayed_work roc_done;
422 struct delayed_work hw_scan;
423 struct cfg80211_scan_request *hw_scan_request;
424 struct ieee80211_vif *hw_scan_vif;
426 u8 scan_addr[ETH_ALEN];
428 struct ieee80211_channel *channel;
429 u64 beacon_int /* beacon interval in us */;
430 unsigned int rx_filter;
431 bool started, idle, scanning;
433 struct tasklet_hrtimer beacon_timer;
435 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
437 bool ps_poll_pending;
438 struct dentry *debugfs;
440 struct sk_buff_head pending; /* packets pending */
442 * Only radios in the same group can communicate together (the
443 * channel has to match too). Each bit represents a group. A
444 * radio can be in more than one group.
450 /* difference between this hw's clock and the real clock, in usecs */
453 /* absolute beacon transmission time. Used to cover up "tx" delay. */
466 struct hwsim_radiotap_hdr {
467 struct ieee80211_radiotap_header hdr;
475 struct hwsim_radiotap_ack_hdr {
476 struct ieee80211_radiotap_header hdr;
483 /* MAC80211_HWSIM netlinf family */
484 static struct genl_family hwsim_genl_family = {
485 .id = GENL_ID_GENERATE,
487 .name = "MAC80211_HWSIM",
489 .maxattr = HWSIM_ATTR_MAX,
492 enum hwsim_multicast_groups {
496 static const struct genl_multicast_group hwsim_mcgrps[] = {
497 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
500 /* MAC80211_HWSIM netlink policy */
502 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
503 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
504 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
505 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
506 .len = IEEE80211_MAX_DATA_LEN },
507 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
508 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
509 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
510 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
511 .len = IEEE80211_TX_MAX_RATES *
512 sizeof(struct hwsim_tx_rate)},
513 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
514 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
515 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
516 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
517 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
518 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
519 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
520 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
521 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
522 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
523 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
526 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
528 struct ieee80211_channel *chan);
530 /* sysfs attributes */
531 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
533 struct mac80211_hwsim_data *data = dat;
534 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
536 struct ieee80211_pspoll *pspoll;
541 wiphy_debug(data->hw->wiphy,
542 "%s: send PS-Poll to %pM for aid %d\n",
543 __func__, vp->bssid, vp->aid);
545 skb = dev_alloc_skb(sizeof(*pspoll));
548 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
549 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
550 IEEE80211_STYPE_PSPOLL |
552 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
553 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
554 memcpy(pspoll->ta, mac, ETH_ALEN);
557 mac80211_hwsim_tx_frame(data->hw, skb,
558 rcu_dereference(vif->chanctx_conf)->def.chan);
562 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
563 struct ieee80211_vif *vif, int ps)
565 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
567 struct ieee80211_hdr *hdr;
572 wiphy_debug(data->hw->wiphy,
573 "%s: send data::nullfunc to %pM ps=%d\n",
574 __func__, vp->bssid, ps);
576 skb = dev_alloc_skb(sizeof(*hdr));
579 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
580 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
581 IEEE80211_STYPE_NULLFUNC |
582 (ps ? IEEE80211_FCTL_PM : 0));
583 hdr->duration_id = cpu_to_le16(0);
584 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
585 memcpy(hdr->addr2, mac, ETH_ALEN);
586 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
589 mac80211_hwsim_tx_frame(data->hw, skb,
590 rcu_dereference(vif->chanctx_conf)->def.chan);
595 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
596 struct ieee80211_vif *vif)
598 struct mac80211_hwsim_data *data = dat;
599 hwsim_send_nullfunc(data, mac, vif, 1);
602 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
603 struct ieee80211_vif *vif)
605 struct mac80211_hwsim_data *data = dat;
606 hwsim_send_nullfunc(data, mac, vif, 0);
609 static int hwsim_fops_ps_read(void *dat, u64 *val)
611 struct mac80211_hwsim_data *data = dat;
616 static int hwsim_fops_ps_write(void *dat, u64 val)
618 struct mac80211_hwsim_data *data = dat;
621 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
622 val != PS_MANUAL_POLL)
628 if (val == PS_MANUAL_POLL) {
629 ieee80211_iterate_active_interfaces(data->hw,
630 IEEE80211_IFACE_ITER_NORMAL,
631 hwsim_send_ps_poll, data);
632 data->ps_poll_pending = true;
633 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
634 ieee80211_iterate_active_interfaces(data->hw,
635 IEEE80211_IFACE_ITER_NORMAL,
636 hwsim_send_nullfunc_ps,
638 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
639 ieee80211_iterate_active_interfaces(data->hw,
640 IEEE80211_IFACE_ITER_NORMAL,
641 hwsim_send_nullfunc_no_ps,
648 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
651 static int hwsim_write_simulate_radar(void *dat, u64 val)
653 struct mac80211_hwsim_data *data = dat;
655 ieee80211_radar_detected(data->hw);
660 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
661 hwsim_write_simulate_radar, "%llu\n");
663 static int hwsim_fops_group_read(void *dat, u64 *val)
665 struct mac80211_hwsim_data *data = dat;
670 static int hwsim_fops_group_write(void *dat, u64 val)
672 struct mac80211_hwsim_data *data = dat;
677 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
678 hwsim_fops_group_read, hwsim_fops_group_write,
681 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
682 struct net_device *dev)
684 /* TODO: allow packet injection */
689 static inline u64 mac80211_hwsim_get_tsf_raw(void)
691 return ktime_to_us(ktime_get_real());
694 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
696 u64 now = mac80211_hwsim_get_tsf_raw();
697 return cpu_to_le64(now + data->tsf_offset);
700 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
701 struct ieee80211_vif *vif)
703 struct mac80211_hwsim_data *data = hw->priv;
704 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
707 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
708 struct ieee80211_vif *vif, u64 tsf)
710 struct mac80211_hwsim_data *data = hw->priv;
711 u64 now = mac80211_hwsim_get_tsf(hw, vif);
712 u32 bcn_int = data->beacon_int;
713 u64 delta = abs64(tsf - now);
715 /* adjust after beaconing with new timestamp at old TBTT */
717 data->tsf_offset += delta;
718 data->bcn_delta = do_div(delta, bcn_int);
720 data->tsf_offset -= delta;
721 data->bcn_delta = -do_div(delta, bcn_int);
725 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
726 struct sk_buff *tx_skb,
727 struct ieee80211_channel *chan)
729 struct mac80211_hwsim_data *data = hw->priv;
731 struct hwsim_radiotap_hdr *hdr;
733 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
734 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
736 if (!netif_running(hwsim_mon))
739 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
743 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
744 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
746 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
747 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
748 (1 << IEEE80211_RADIOTAP_RATE) |
749 (1 << IEEE80211_RADIOTAP_TSFT) |
750 (1 << IEEE80211_RADIOTAP_CHANNEL));
751 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
753 hdr->rt_rate = txrate->bitrate / 5;
754 hdr->rt_channel = cpu_to_le16(chan->center_freq);
755 flags = IEEE80211_CHAN_2GHZ;
756 if (txrate->flags & IEEE80211_RATE_ERP_G)
757 flags |= IEEE80211_CHAN_OFDM;
759 flags |= IEEE80211_CHAN_CCK;
760 hdr->rt_chbitmask = cpu_to_le16(flags);
762 skb->dev = hwsim_mon;
763 skb_set_mac_header(skb, 0);
764 skb->ip_summed = CHECKSUM_UNNECESSARY;
765 skb->pkt_type = PACKET_OTHERHOST;
766 skb->protocol = htons(ETH_P_802_2);
767 memset(skb->cb, 0, sizeof(skb->cb));
772 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
776 struct hwsim_radiotap_ack_hdr *hdr;
778 struct ieee80211_hdr *hdr11;
780 if (!netif_running(hwsim_mon))
783 skb = dev_alloc_skb(100);
787 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
788 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
790 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
791 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
792 (1 << IEEE80211_RADIOTAP_CHANNEL));
795 hdr->rt_channel = cpu_to_le16(chan->center_freq);
796 flags = IEEE80211_CHAN_2GHZ;
797 hdr->rt_chbitmask = cpu_to_le16(flags);
799 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
800 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
801 IEEE80211_STYPE_ACK);
802 hdr11->duration_id = cpu_to_le16(0);
803 memcpy(hdr11->addr1, addr, ETH_ALEN);
805 skb->dev = hwsim_mon;
806 skb_set_mac_header(skb, 0);
807 skb->ip_summed = CHECKSUM_UNNECESSARY;
808 skb->pkt_type = PACKET_OTHERHOST;
809 skb->protocol = htons(ETH_P_802_2);
810 memset(skb->cb, 0, sizeof(skb->cb));
814 struct mac80211_hwsim_addr_match_data {
819 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
820 struct ieee80211_vif *vif)
822 struct mac80211_hwsim_addr_match_data *md = data;
824 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
828 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
831 struct mac80211_hwsim_addr_match_data md = {
835 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
838 memcpy(md.addr, addr, ETH_ALEN);
840 ieee80211_iterate_active_interfaces_atomic(data->hw,
841 IEEE80211_IFACE_ITER_NORMAL,
842 mac80211_hwsim_addr_iter,
848 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
857 /* TODO: accept (some) Beacons by default and other frames only
858 * if pending PS-Poll has been sent */
861 /* Allow unicast frames to own address if there is a pending
863 if (data->ps_poll_pending &&
864 mac80211_hwsim_addr_match(data, skb->data + 4)) {
865 data->ps_poll_pending = false;
874 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
875 struct sk_buff *my_skb,
879 struct mac80211_hwsim_data *data = hw->priv;
880 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
881 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
883 unsigned int hwsim_flags = 0;
885 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
887 if (data->ps != PS_DISABLED)
888 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
889 /* If the queue contains MAX_QUEUE skb's drop some */
890 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
891 /* Droping until WARN_QUEUE level */
892 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
893 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
898 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
900 goto nla_put_failure;
902 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
904 if (msg_head == NULL) {
905 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
906 goto nla_put_failure;
909 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
910 ETH_ALEN, data->addresses[1].addr))
911 goto nla_put_failure;
913 /* We get the skb->data */
914 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
915 goto nla_put_failure;
917 /* We get the flags for this transmission, and we translate them to
920 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
921 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
923 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
924 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
926 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
927 goto nla_put_failure;
929 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
930 goto nla_put_failure;
932 /* We get the tx control (rate and retries) info*/
934 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
935 tx_attempts[i].idx = info->status.rates[i].idx;
936 tx_attempts[i].count = info->status.rates[i].count;
939 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
940 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
942 goto nla_put_failure;
944 /* We create a cookie to identify this skb */
945 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
946 goto nla_put_failure;
948 genlmsg_end(skb, msg_head);
949 genlmsg_unicast(&init_net, skb, dst_portid);
951 /* Enqueue the packet */
952 skb_queue_tail(&data->pending, my_skb);
954 data->tx_bytes += my_skb->len;
958 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
959 ieee80211_free_txskb(hw, my_skb);
963 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
964 struct ieee80211_channel *c2)
969 return c1->center_freq == c2->center_freq;
972 struct tx_iter_data {
973 struct ieee80211_channel *channel;
977 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
978 struct ieee80211_vif *vif)
980 struct tx_iter_data *data = _data;
982 if (!vif->chanctx_conf)
985 if (!hwsim_chans_compat(data->channel,
986 rcu_dereference(vif->chanctx_conf)->def.chan))
989 data->receive = true;
992 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
995 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
997 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
998 * (but you should use a valid OUI, not that)
1000 * If anyone wants to 'donate' a radiotap OUI/subns code
1001 * please send a patch removing this #ifdef and changing
1002 * the values accordingly.
1004 #ifdef HWSIM_RADIOTAP_OUI
1005 struct ieee80211_vendor_radiotap *rtap;
1008 * Note that this code requires the headroom in the SKB
1009 * that was allocated earlier.
1011 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1012 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1013 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1014 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1018 * Radiotap vendor namespaces can (and should) also be
1019 * split into fields by using the standard radiotap
1020 * presence bitmap mechanism. Use just BIT(0) here for
1021 * the presence bitmap.
1023 rtap->present = BIT(0);
1024 /* We have 8 bytes of (dummy) data */
1026 /* For testing, also require it to be aligned */
1028 /* And also test that padding works, 4 bytes */
1031 memcpy(rtap->data, "ABCDEFGH", 8);
1032 /* make sure to clear padding, mac80211 doesn't */
1033 memset(rtap->data + 8, 0, 4);
1035 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1039 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1040 struct sk_buff *skb,
1041 struct ieee80211_channel *chan)
1043 struct mac80211_hwsim_data *data = hw->priv, *data2;
1045 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1046 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1047 struct ieee80211_rx_status rx_status;
1050 memset(&rx_status, 0, sizeof(rx_status));
1051 rx_status.flag |= RX_FLAG_MACTIME_START;
1052 rx_status.freq = chan->center_freq;
1053 rx_status.band = chan->band;
1054 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1055 rx_status.rate_idx =
1056 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1058 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1059 rx_status.flag |= RX_FLAG_VHT;
1061 rx_status.rate_idx = info->control.rates[0].idx;
1062 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1063 rx_status.flag |= RX_FLAG_HT;
1065 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1066 rx_status.flag |= RX_FLAG_40MHZ;
1067 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1068 rx_status.flag |= RX_FLAG_SHORT_GI;
1069 /* TODO: simulate real signal strength (and optional packet loss) */
1070 rx_status.signal = data->power_level - 50;
1072 if (data->ps != PS_DISABLED)
1073 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1075 /* release the skb's source info */
1083 * Get absolute mactime here so all HWs RX at the "same time", and
1084 * absolute TX time for beacon mactime so the timestamp matches.
1085 * Giving beacons a different mactime than non-beacons looks messy, but
1086 * it helps the Toffset be exact and a ~10us mactime discrepancy
1087 * probably doesn't really matter.
1089 if (ieee80211_is_beacon(hdr->frame_control) ||
1090 ieee80211_is_probe_resp(hdr->frame_control))
1091 now = data->abs_bcn_ts;
1093 now = mac80211_hwsim_get_tsf_raw();
1095 /* Copy skb to all enabled radios that are on the current frequency */
1096 spin_lock(&hwsim_radio_lock);
1097 list_for_each_entry(data2, &hwsim_radios, list) {
1098 struct sk_buff *nskb;
1099 struct tx_iter_data tx_iter_data = {
1107 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1108 !hwsim_ps_rx_ok(data2, skb))
1111 if (!(data->group & data2->group))
1114 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1115 !hwsim_chans_compat(chan, data2->channel)) {
1116 ieee80211_iterate_active_interfaces_atomic(
1117 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1118 mac80211_hwsim_tx_iter, &tx_iter_data);
1119 if (!tx_iter_data.receive)
1124 * reserve some space for our vendor and the normal
1125 * radiotap header, since we're copying anyway
1127 if (skb->len < PAGE_SIZE && paged_rx) {
1128 struct page *page = alloc_page(GFP_ATOMIC);
1133 nskb = dev_alloc_skb(128);
1139 memcpy(page_address(page), skb->data, skb->len);
1140 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1142 nskb = skb_copy(skb, GFP_ATOMIC);
1147 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1150 rx_status.mactime = now + data2->tsf_offset;
1152 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1154 mac80211_hwsim_add_vendor_rtap(nskb);
1157 data2->rx_bytes += nskb->len;
1158 ieee80211_rx_irqsafe(data2->hw, nskb);
1160 spin_unlock(&hwsim_radio_lock);
1165 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1166 struct ieee80211_tx_control *control,
1167 struct sk_buff *skb)
1169 struct mac80211_hwsim_data *data = hw->priv;
1170 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1171 struct ieee80211_chanctx_conf *chanctx_conf;
1172 struct ieee80211_channel *channel;
1176 if (WARN_ON(skb->len < 10)) {
1177 /* Should not happen; just a sanity check for addr1 use */
1178 ieee80211_free_txskb(hw, skb);
1182 if (!data->use_chanctx) {
1183 channel = data->channel;
1184 } else if (txi->hw_queue == 4) {
1185 channel = data->tmp_chan;
1187 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1189 channel = chanctx_conf->def.chan;
1194 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1195 ieee80211_free_txskb(hw, skb);
1199 if (data->idle && !data->tmp_chan) {
1200 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
1201 ieee80211_free_txskb(hw, skb);
1205 if (txi->control.vif)
1206 hwsim_check_magic(txi->control.vif);
1208 hwsim_check_sta_magic(control->sta);
1210 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1211 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1213 ARRAY_SIZE(txi->control.rates));
1215 txi->rate_driver_data[0] = channel;
1216 mac80211_hwsim_monitor_rx(hw, skb, channel);
1218 /* wmediumd mode check */
1219 _portid = ACCESS_ONCE(wmediumd_portid);
1222 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1224 /* NO wmediumd detected, perfect medium simulation */
1226 data->tx_bytes += skb->len;
1227 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1229 if (ack && skb->len >= 16) {
1230 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1231 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1234 ieee80211_tx_info_clear_status(txi);
1236 /* frame was transmitted at most favorable rate at first attempt */
1237 txi->control.rates[0].count = 1;
1238 txi->control.rates[1].idx = -1;
1240 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1241 txi->flags |= IEEE80211_TX_STAT_ACK;
1242 ieee80211_tx_status_irqsafe(hw, skb);
1246 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1248 struct mac80211_hwsim_data *data = hw->priv;
1249 wiphy_debug(hw->wiphy, "%s\n", __func__);
1250 data->started = true;
1255 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1257 struct mac80211_hwsim_data *data = hw->priv;
1258 data->started = false;
1259 tasklet_hrtimer_cancel(&data->beacon_timer);
1260 wiphy_debug(hw->wiphy, "%s\n", __func__);
1264 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1265 struct ieee80211_vif *vif)
1267 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1268 __func__, ieee80211_vif_type_p2p(vif),
1270 hwsim_set_magic(vif);
1273 vif->hw_queue[IEEE80211_AC_VO] = 0;
1274 vif->hw_queue[IEEE80211_AC_VI] = 1;
1275 vif->hw_queue[IEEE80211_AC_BE] = 2;
1276 vif->hw_queue[IEEE80211_AC_BK] = 3;
1282 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1283 struct ieee80211_vif *vif,
1284 enum nl80211_iftype newtype,
1287 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1288 wiphy_debug(hw->wiphy,
1289 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1290 __func__, ieee80211_vif_type_p2p(vif),
1291 newtype, vif->addr);
1292 hwsim_check_magic(vif);
1295 * interface may change from non-AP to AP in
1296 * which case this needs to be set up again
1303 static void mac80211_hwsim_remove_interface(
1304 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1306 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1307 __func__, ieee80211_vif_type_p2p(vif),
1309 hwsim_check_magic(vif);
1310 hwsim_clear_magic(vif);
1313 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1314 struct sk_buff *skb,
1315 struct ieee80211_channel *chan)
1317 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1319 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1320 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1321 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1323 ARRAY_SIZE(txi->control.rates));
1326 mac80211_hwsim_monitor_rx(hw, skb, chan);
1329 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1331 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1335 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1336 struct ieee80211_vif *vif)
1338 struct mac80211_hwsim_data *data = arg;
1339 struct ieee80211_hw *hw = data->hw;
1340 struct ieee80211_tx_info *info;
1341 struct ieee80211_rate *txrate;
1342 struct ieee80211_mgmt *mgmt;
1343 struct sk_buff *skb;
1345 hwsim_check_magic(vif);
1347 if (vif->type != NL80211_IFTYPE_AP &&
1348 vif->type != NL80211_IFTYPE_MESH_POINT &&
1349 vif->type != NL80211_IFTYPE_ADHOC)
1352 skb = ieee80211_beacon_get(hw, vif);
1355 info = IEEE80211_SKB_CB(skb);
1356 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1357 ieee80211_get_tx_rates(vif, NULL, skb,
1358 info->control.rates,
1359 ARRAY_SIZE(info->control.rates));
1361 txrate = ieee80211_get_tx_rate(hw, info);
1363 mgmt = (struct ieee80211_mgmt *) skb->data;
1364 /* fake header transmission time */
1365 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1366 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1368 24 * 8 * 10 / txrate->bitrate);
1370 mac80211_hwsim_tx_frame(hw, skb,
1371 rcu_dereference(vif->chanctx_conf)->def.chan);
1373 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1374 ieee80211_csa_finish(vif);
1377 static enum hrtimer_restart
1378 mac80211_hwsim_beacon(struct hrtimer *timer)
1380 struct mac80211_hwsim_data *data =
1381 container_of(timer, struct mac80211_hwsim_data,
1382 beacon_timer.timer);
1383 struct ieee80211_hw *hw = data->hw;
1384 u64 bcn_int = data->beacon_int;
1390 ieee80211_iterate_active_interfaces_atomic(
1391 hw, IEEE80211_IFACE_ITER_NORMAL,
1392 mac80211_hwsim_beacon_tx, data);
1394 /* beacon at new TBTT + beacon interval */
1395 if (data->bcn_delta) {
1396 bcn_int -= data->bcn_delta;
1397 data->bcn_delta = 0;
1400 next_bcn = ktime_add(hrtimer_get_expires(timer),
1401 ns_to_ktime(bcn_int * 1000));
1402 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1404 return HRTIMER_NORESTART;
1407 static const char * const hwsim_chanwidths[] = {
1408 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1409 [NL80211_CHAN_WIDTH_20] = "ht20",
1410 [NL80211_CHAN_WIDTH_40] = "ht40",
1411 [NL80211_CHAN_WIDTH_80] = "vht80",
1412 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1413 [NL80211_CHAN_WIDTH_160] = "vht160",
1416 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1418 struct mac80211_hwsim_data *data = hw->priv;
1419 struct ieee80211_conf *conf = &hw->conf;
1420 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1421 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1422 [IEEE80211_SMPS_OFF] = "off",
1423 [IEEE80211_SMPS_STATIC] = "static",
1424 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1427 if (conf->chandef.chan)
1428 wiphy_debug(hw->wiphy,
1429 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1431 conf->chandef.chan->center_freq,
1432 conf->chandef.center_freq1,
1433 conf->chandef.center_freq2,
1434 hwsim_chanwidths[conf->chandef.width],
1435 !!(conf->flags & IEEE80211_CONF_IDLE),
1436 !!(conf->flags & IEEE80211_CONF_PS),
1437 smps_modes[conf->smps_mode]);
1439 wiphy_debug(hw->wiphy,
1440 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1442 !!(conf->flags & IEEE80211_CONF_IDLE),
1443 !!(conf->flags & IEEE80211_CONF_PS),
1444 smps_modes[conf->smps_mode]);
1446 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1448 data->channel = conf->chandef.chan;
1450 WARN_ON(data->channel && data->use_chanctx);
1452 data->power_level = conf->power_level;
1453 if (!data->started || !data->beacon_int)
1454 tasklet_hrtimer_cancel(&data->beacon_timer);
1455 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1456 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1457 u32 bcn_int = data->beacon_int;
1458 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1460 tasklet_hrtimer_start(&data->beacon_timer,
1461 ns_to_ktime(until_tbtt * 1000),
1469 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1470 unsigned int changed_flags,
1471 unsigned int *total_flags,u64 multicast)
1473 struct mac80211_hwsim_data *data = hw->priv;
1475 wiphy_debug(hw->wiphy, "%s\n", __func__);
1477 data->rx_filter = 0;
1478 if (*total_flags & FIF_PROMISC_IN_BSS)
1479 data->rx_filter |= FIF_PROMISC_IN_BSS;
1480 if (*total_flags & FIF_ALLMULTI)
1481 data->rx_filter |= FIF_ALLMULTI;
1483 *total_flags = data->rx_filter;
1486 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1487 struct ieee80211_vif *vif)
1489 unsigned int *count = data;
1490 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1496 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1497 struct ieee80211_vif *vif,
1498 struct ieee80211_bss_conf *info,
1501 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1502 struct mac80211_hwsim_data *data = hw->priv;
1504 hwsim_check_magic(vif);
1506 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1507 __func__, changed, vif->addr);
1509 if (changed & BSS_CHANGED_BSSID) {
1510 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1511 __func__, info->bssid);
1512 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1515 if (changed & BSS_CHANGED_ASSOC) {
1516 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1517 info->assoc, info->aid);
1518 vp->assoc = info->assoc;
1519 vp->aid = info->aid;
1522 if (changed & BSS_CHANGED_BEACON_INT) {
1523 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1524 data->beacon_int = info->beacon_int * 1024;
1527 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1528 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1529 vp->bcn_en = info->enable_beacon;
1530 if (data->started &&
1531 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1532 info->enable_beacon) {
1533 u64 tsf, until_tbtt;
1535 if (WARN_ON(!data->beacon_int))
1536 data->beacon_int = 1000 * 1024;
1537 tsf = mac80211_hwsim_get_tsf(hw, vif);
1538 bcn_int = data->beacon_int;
1539 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1540 tasklet_hrtimer_start(&data->beacon_timer,
1541 ns_to_ktime(until_tbtt * 1000),
1543 } else if (!info->enable_beacon) {
1544 unsigned int count = 0;
1545 ieee80211_iterate_active_interfaces_atomic(
1546 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1547 mac80211_hwsim_bcn_en_iter, &count);
1548 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1551 tasklet_hrtimer_cancel(&data->beacon_timer);
1555 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1556 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1557 info->use_cts_prot);
1560 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1561 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1562 info->use_short_preamble);
1565 if (changed & BSS_CHANGED_ERP_SLOT) {
1566 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1569 if (changed & BSS_CHANGED_HT) {
1570 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1571 info->ht_operation_mode);
1574 if (changed & BSS_CHANGED_BASIC_RATES) {
1575 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1576 (unsigned long long) info->basic_rates);
1579 if (changed & BSS_CHANGED_TXPOWER)
1580 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1583 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1584 struct ieee80211_vif *vif,
1585 struct ieee80211_sta *sta)
1587 hwsim_check_magic(vif);
1588 hwsim_set_sta_magic(sta);
1593 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1594 struct ieee80211_vif *vif,
1595 struct ieee80211_sta *sta)
1597 hwsim_check_magic(vif);
1598 hwsim_clear_sta_magic(sta);
1603 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1604 struct ieee80211_vif *vif,
1605 enum sta_notify_cmd cmd,
1606 struct ieee80211_sta *sta)
1608 hwsim_check_magic(vif);
1611 case STA_NOTIFY_SLEEP:
1612 case STA_NOTIFY_AWAKE:
1613 /* TODO: make good use of these flags */
1616 WARN(1, "Invalid sta notify: %d\n", cmd);
1621 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1622 struct ieee80211_sta *sta,
1625 hwsim_check_sta_magic(sta);
1629 static int mac80211_hwsim_conf_tx(
1630 struct ieee80211_hw *hw,
1631 struct ieee80211_vif *vif, u16 queue,
1632 const struct ieee80211_tx_queue_params *params)
1634 wiphy_debug(hw->wiphy,
1635 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1637 params->txop, params->cw_min,
1638 params->cw_max, params->aifs);
1642 static int mac80211_hwsim_get_survey(
1643 struct ieee80211_hw *hw, int idx,
1644 struct survey_info *survey)
1646 struct ieee80211_conf *conf = &hw->conf;
1648 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1653 /* Current channel */
1654 survey->channel = conf->chandef.chan;
1657 * Magically conjured noise level --- this is only ok for simulated hardware.
1659 * A real driver which cannot determine the real channel noise MUST NOT
1660 * report any noise, especially not a magically conjured one :-)
1662 survey->filled = SURVEY_INFO_NOISE_DBM;
1663 survey->noise = -92;
1668 #ifdef CONFIG_NL80211_TESTMODE
1670 * This section contains example code for using netlink
1671 * attributes with the testmode command in nl80211.
1674 /* These enums need to be kept in sync with userspace */
1675 enum hwsim_testmode_attr {
1676 __HWSIM_TM_ATTR_INVALID = 0,
1677 HWSIM_TM_ATTR_CMD = 1,
1678 HWSIM_TM_ATTR_PS = 2,
1681 __HWSIM_TM_ATTR_AFTER_LAST,
1682 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1685 enum hwsim_testmode_cmd {
1686 HWSIM_TM_CMD_SET_PS = 0,
1687 HWSIM_TM_CMD_GET_PS = 1,
1688 HWSIM_TM_CMD_STOP_QUEUES = 2,
1689 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1692 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1693 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1694 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1697 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1698 struct ieee80211_vif *vif,
1699 void *data, int len)
1701 struct mac80211_hwsim_data *hwsim = hw->priv;
1702 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1703 struct sk_buff *skb;
1706 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1707 hwsim_testmode_policy);
1711 if (!tb[HWSIM_TM_ATTR_CMD])
1714 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1715 case HWSIM_TM_CMD_SET_PS:
1716 if (!tb[HWSIM_TM_ATTR_PS])
1718 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1719 return hwsim_fops_ps_write(hwsim, ps);
1720 case HWSIM_TM_CMD_GET_PS:
1721 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1722 nla_total_size(sizeof(u32)));
1725 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1726 goto nla_put_failure;
1727 return cfg80211_testmode_reply(skb);
1728 case HWSIM_TM_CMD_STOP_QUEUES:
1729 ieee80211_stop_queues(hw);
1731 case HWSIM_TM_CMD_WAKE_QUEUES:
1732 ieee80211_wake_queues(hw);
1744 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1745 struct ieee80211_vif *vif,
1746 enum ieee80211_ampdu_mlme_action action,
1747 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1751 case IEEE80211_AMPDU_TX_START:
1752 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1754 case IEEE80211_AMPDU_TX_STOP_CONT:
1755 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1756 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1757 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1759 case IEEE80211_AMPDU_TX_OPERATIONAL:
1761 case IEEE80211_AMPDU_RX_START:
1762 case IEEE80211_AMPDU_RX_STOP:
1771 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1772 struct ieee80211_vif *vif,
1773 u32 queues, bool drop)
1775 /* Not implemented, queues only on kernel side */
1778 static void hw_scan_work(struct work_struct *work)
1780 struct mac80211_hwsim_data *hwsim =
1781 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1782 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1785 mutex_lock(&hwsim->mutex);
1786 if (hwsim->scan_chan_idx >= req->n_channels) {
1787 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1788 ieee80211_scan_completed(hwsim->hw, false);
1789 hwsim->hw_scan_request = NULL;
1790 hwsim->hw_scan_vif = NULL;
1791 hwsim->tmp_chan = NULL;
1792 mutex_unlock(&hwsim->mutex);
1796 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1797 req->channels[hwsim->scan_chan_idx]->center_freq);
1799 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1800 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
1806 for (i = 0; i < req->n_ssids; i++) {
1807 struct sk_buff *probe;
1809 probe = ieee80211_probereq_get(hwsim->hw,
1812 req->ssids[i].ssid_len,
1818 memcpy(skb_put(probe, req->ie_len), req->ie,
1822 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1827 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1828 msecs_to_jiffies(dwell));
1829 hwsim->scan_chan_idx++;
1830 mutex_unlock(&hwsim->mutex);
1833 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1834 struct ieee80211_vif *vif,
1835 struct ieee80211_scan_request *hw_req)
1837 struct mac80211_hwsim_data *hwsim = hw->priv;
1838 struct cfg80211_scan_request *req = &hw_req->req;
1840 mutex_lock(&hwsim->mutex);
1841 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1842 mutex_unlock(&hwsim->mutex);
1845 hwsim->hw_scan_request = req;
1846 hwsim->hw_scan_vif = vif;
1847 hwsim->scan_chan_idx = 0;
1848 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
1849 get_random_mask_addr(hwsim->scan_addr,
1850 hw_req->req.mac_addr,
1851 hw_req->req.mac_addr_mask);
1853 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
1854 mutex_unlock(&hwsim->mutex);
1856 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1858 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1863 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1864 struct ieee80211_vif *vif)
1866 struct mac80211_hwsim_data *hwsim = hw->priv;
1868 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1870 cancel_delayed_work_sync(&hwsim->hw_scan);
1872 mutex_lock(&hwsim->mutex);
1873 ieee80211_scan_completed(hwsim->hw, true);
1874 hwsim->tmp_chan = NULL;
1875 hwsim->hw_scan_request = NULL;
1876 hwsim->hw_scan_vif = NULL;
1877 mutex_unlock(&hwsim->mutex);
1880 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
1881 struct ieee80211_vif *vif,
1884 struct mac80211_hwsim_data *hwsim = hw->priv;
1886 mutex_lock(&hwsim->mutex);
1888 if (hwsim->scanning) {
1889 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1893 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1895 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
1896 hwsim->scanning = true;
1899 mutex_unlock(&hwsim->mutex);
1902 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
1903 struct ieee80211_vif *vif)
1905 struct mac80211_hwsim_data *hwsim = hw->priv;
1907 mutex_lock(&hwsim->mutex);
1909 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1910 hwsim->scanning = false;
1911 memset(hwsim->scan_addr, 0, ETH_ALEN);
1913 mutex_unlock(&hwsim->mutex);
1916 static void hw_roc_done(struct work_struct *work)
1918 struct mac80211_hwsim_data *hwsim =
1919 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1921 mutex_lock(&hwsim->mutex);
1922 ieee80211_remain_on_channel_expired(hwsim->hw);
1923 hwsim->tmp_chan = NULL;
1924 mutex_unlock(&hwsim->mutex);
1926 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1929 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1930 struct ieee80211_vif *vif,
1931 struct ieee80211_channel *chan,
1933 enum ieee80211_roc_type type)
1935 struct mac80211_hwsim_data *hwsim = hw->priv;
1937 mutex_lock(&hwsim->mutex);
1938 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1939 mutex_unlock(&hwsim->mutex);
1943 hwsim->tmp_chan = chan;
1944 mutex_unlock(&hwsim->mutex);
1946 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1947 chan->center_freq, duration);
1949 ieee80211_ready_on_channel(hw);
1951 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1952 msecs_to_jiffies(duration));
1956 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1958 struct mac80211_hwsim_data *hwsim = hw->priv;
1960 cancel_delayed_work_sync(&hwsim->roc_done);
1962 mutex_lock(&hwsim->mutex);
1963 hwsim->tmp_chan = NULL;
1964 mutex_unlock(&hwsim->mutex);
1966 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1971 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1972 struct ieee80211_chanctx_conf *ctx)
1974 hwsim_set_chanctx_magic(ctx);
1975 wiphy_debug(hw->wiphy,
1976 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1977 ctx->def.chan->center_freq, ctx->def.width,
1978 ctx->def.center_freq1, ctx->def.center_freq2);
1982 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1983 struct ieee80211_chanctx_conf *ctx)
1985 wiphy_debug(hw->wiphy,
1986 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1987 ctx->def.chan->center_freq, ctx->def.width,
1988 ctx->def.center_freq1, ctx->def.center_freq2);
1989 hwsim_check_chanctx_magic(ctx);
1990 hwsim_clear_chanctx_magic(ctx);
1993 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1994 struct ieee80211_chanctx_conf *ctx,
1997 hwsim_check_chanctx_magic(ctx);
1998 wiphy_debug(hw->wiphy,
1999 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2000 ctx->def.chan->center_freq, ctx->def.width,
2001 ctx->def.center_freq1, ctx->def.center_freq2);
2004 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2005 struct ieee80211_vif *vif,
2006 struct ieee80211_chanctx_conf *ctx)
2008 hwsim_check_magic(vif);
2009 hwsim_check_chanctx_magic(ctx);
2014 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2015 struct ieee80211_vif *vif,
2016 struct ieee80211_chanctx_conf *ctx)
2018 hwsim_check_magic(vif);
2019 hwsim_check_chanctx_magic(ctx);
2022 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2034 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2036 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2037 struct ieee80211_vif *vif,
2040 if (sset == ETH_SS_STATS)
2041 memcpy(data, *mac80211_hwsim_gstrings_stats,
2042 sizeof(mac80211_hwsim_gstrings_stats));
2045 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2046 struct ieee80211_vif *vif, int sset)
2048 if (sset == ETH_SS_STATS)
2049 return MAC80211_HWSIM_SSTATS_LEN;
2053 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2054 struct ieee80211_vif *vif,
2055 struct ethtool_stats *stats, u64 *data)
2057 struct mac80211_hwsim_data *ar = hw->priv;
2060 data[i++] = ar->tx_pkts;
2061 data[i++] = ar->tx_bytes;
2062 data[i++] = ar->rx_pkts;
2063 data[i++] = ar->rx_bytes;
2064 data[i++] = ar->tx_dropped;
2065 data[i++] = ar->tx_failed;
2067 data[i++] = ar->group;
2068 data[i++] = ar->power_level;
2070 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2073 static const struct ieee80211_ops mac80211_hwsim_ops = {
2074 .tx = mac80211_hwsim_tx,
2075 .start = mac80211_hwsim_start,
2076 .stop = mac80211_hwsim_stop,
2077 .add_interface = mac80211_hwsim_add_interface,
2078 .change_interface = mac80211_hwsim_change_interface,
2079 .remove_interface = mac80211_hwsim_remove_interface,
2080 .config = mac80211_hwsim_config,
2081 .configure_filter = mac80211_hwsim_configure_filter,
2082 .bss_info_changed = mac80211_hwsim_bss_info_changed,
2083 .sta_add = mac80211_hwsim_sta_add,
2084 .sta_remove = mac80211_hwsim_sta_remove,
2085 .sta_notify = mac80211_hwsim_sta_notify,
2086 .set_tim = mac80211_hwsim_set_tim,
2087 .conf_tx = mac80211_hwsim_conf_tx,
2088 .get_survey = mac80211_hwsim_get_survey,
2089 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
2090 .ampdu_action = mac80211_hwsim_ampdu_action,
2091 .sw_scan_start = mac80211_hwsim_sw_scan,
2092 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2093 .flush = mac80211_hwsim_flush,
2094 .get_tsf = mac80211_hwsim_get_tsf,
2095 .set_tsf = mac80211_hwsim_set_tsf,
2096 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2097 .get_et_stats = mac80211_hwsim_get_et_stats,
2098 .get_et_strings = mac80211_hwsim_get_et_strings,
2101 static struct ieee80211_ops mac80211_hwsim_mchan_ops;
2103 struct hwsim_new_radio_params {
2104 unsigned int channels;
2105 const char *reg_alpha2;
2106 const struct ieee80211_regdomain *regd;
2110 bool destroy_on_close;
2115 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2116 struct genl_info *info)
2119 genl_notify(&hwsim_genl_family, mcast_skb,
2120 genl_info_net(info), info->snd_portid,
2121 HWSIM_MCGRP_CONFIG, info->nlhdr, GFP_KERNEL);
2123 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2124 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2127 static int append_radio_msg(struct sk_buff *skb, int id,
2128 struct hwsim_new_radio_params *param)
2132 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2136 if (param->channels) {
2137 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2142 if (param->reg_alpha2) {
2143 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2152 for (i = 0; hwsim_world_regdom_custom[i] != param->regd &&
2153 i < ARRAY_SIZE(hwsim_world_regdom_custom); i++)
2156 if (i < ARRAY_SIZE(hwsim_world_regdom_custom)) {
2157 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2163 if (param->reg_strict) {
2164 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2169 if (param->p2p_device) {
2170 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2175 if (param->use_chanctx) {
2176 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2181 if (param->hwname) {
2182 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2183 strlen(param->hwname), param->hwname);
2191 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2192 struct hwsim_new_radio_params *param)
2194 struct sk_buff *mcast_skb;
2197 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2201 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2202 HWSIM_CMD_NEW_RADIO);
2206 if (append_radio_msg(mcast_skb, id, param) < 0)
2209 genlmsg_end(mcast_skb, data);
2211 hwsim_mcast_config_msg(mcast_skb, info);
2215 genlmsg_cancel(mcast_skb, data);
2216 nlmsg_free(mcast_skb);
2219 static int mac80211_hwsim_new_radio(struct genl_info *info,
2220 struct hwsim_new_radio_params *param)
2224 struct mac80211_hwsim_data *data;
2225 struct ieee80211_hw *hw;
2226 enum ieee80211_band band;
2227 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2230 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2233 spin_lock_bh(&hwsim_radio_lock);
2234 idx = hwsim_radio_idx++;
2235 spin_unlock_bh(&hwsim_radio_lock);
2237 if (param->use_chanctx)
2238 ops = &mac80211_hwsim_mchan_ops;
2239 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2241 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2248 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2249 if (IS_ERR(data->dev)) {
2251 "mac80211_hwsim: device_create failed (%ld)\n",
2252 PTR_ERR(data->dev));
2254 goto failed_drvdata;
2256 data->dev->driver = &mac80211_hwsim_driver.driver;
2257 err = device_bind_driver(data->dev);
2259 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2264 skb_queue_head_init(&data->pending);
2266 SET_IEEE80211_DEV(hw, data->dev);
2267 memset(addr, 0, ETH_ALEN);
2271 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2272 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2273 data->addresses[1].addr[0] |= 0x40;
2274 hw->wiphy->n_addresses = 2;
2275 hw->wiphy->addresses = data->addresses;
2277 data->channels = param->channels;
2278 data->use_chanctx = param->use_chanctx;
2280 data->destroy_on_close = param->destroy_on_close;
2282 data->portid = info->snd_portid;
2284 if (data->use_chanctx) {
2285 hw->wiphy->max_scan_ssids = 255;
2286 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2287 hw->wiphy->max_remain_on_channel_duration = 1000;
2288 /* For channels > 1 DFS is not allowed */
2289 hw->wiphy->n_iface_combinations = 1;
2290 hw->wiphy->iface_combinations = &data->if_combination;
2291 if (param->p2p_device)
2292 data->if_combination = hwsim_if_comb_p2p_dev[0];
2294 data->if_combination = hwsim_if_comb[0];
2295 data->if_combination.num_different_channels = data->channels;
2296 } else if (param->p2p_device) {
2297 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2298 hw->wiphy->n_iface_combinations =
2299 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
2301 hw->wiphy->iface_combinations = hwsim_if_comb;
2302 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2305 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2306 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2309 hw->offchannel_tx_hw_queue = 4;
2310 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2311 BIT(NL80211_IFTYPE_AP) |
2312 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2313 BIT(NL80211_IFTYPE_P2P_GO) |
2314 BIT(NL80211_IFTYPE_ADHOC) |
2315 BIT(NL80211_IFTYPE_MESH_POINT);
2317 if (param->p2p_device)
2318 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
2320 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2321 IEEE80211_HW_SIGNAL_DBM |
2322 IEEE80211_HW_AMPDU_AGGREGATION |
2323 IEEE80211_HW_WANT_MONITOR_VIF |
2324 IEEE80211_HW_QUEUE_CONTROL |
2325 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2326 IEEE80211_HW_CHANCTX_STA_CSA;
2328 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2330 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2331 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2332 WIPHY_FLAG_AP_UAPSD |
2333 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2334 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2335 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2336 NL80211_FEATURE_STATIC_SMPS |
2337 NL80211_FEATURE_DYNAMIC_SMPS |
2338 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2340 /* ask mac80211 to reserve space for magic */
2341 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2342 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2343 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2345 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2346 sizeof(hwsim_channels_2ghz));
2347 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2348 sizeof(hwsim_channels_5ghz));
2349 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2351 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2352 struct ieee80211_supported_band *sband = &data->bands[band];
2354 case IEEE80211_BAND_2GHZ:
2355 sband->channels = data->channels_2ghz;
2356 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2357 sband->bitrates = data->rates;
2358 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2360 case IEEE80211_BAND_5GHZ:
2361 sband->channels = data->channels_5ghz;
2362 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2363 sband->bitrates = data->rates + 4;
2364 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2370 sband->ht_cap.ht_supported = true;
2371 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2372 IEEE80211_HT_CAP_GRN_FLD |
2373 IEEE80211_HT_CAP_SGI_20 |
2374 IEEE80211_HT_CAP_SGI_40 |
2375 IEEE80211_HT_CAP_DSSSCCK40;
2376 sband->ht_cap.ampdu_factor = 0x3;
2377 sband->ht_cap.ampdu_density = 0x6;
2378 memset(&sband->ht_cap.mcs, 0,
2379 sizeof(sband->ht_cap.mcs));
2380 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2381 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2382 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2384 hw->wiphy->bands[band] = sband;
2386 sband->vht_cap.vht_supported = true;
2387 sband->vht_cap.cap =
2388 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2389 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2390 IEEE80211_VHT_CAP_RXLDPC |
2391 IEEE80211_VHT_CAP_SHORT_GI_80 |
2392 IEEE80211_VHT_CAP_SHORT_GI_160 |
2393 IEEE80211_VHT_CAP_TXSTBC |
2394 IEEE80211_VHT_CAP_RXSTBC_1 |
2395 IEEE80211_VHT_CAP_RXSTBC_2 |
2396 IEEE80211_VHT_CAP_RXSTBC_3 |
2397 IEEE80211_VHT_CAP_RXSTBC_4 |
2398 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2399 sband->vht_cap.vht_mcs.rx_mcs_map =
2400 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2401 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2402 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2403 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2404 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2405 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2406 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2407 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2408 sband->vht_cap.vht_mcs.tx_mcs_map =
2409 sband->vht_cap.vht_mcs.rx_mcs_map;
2412 /* By default all radios belong to the first group */
2414 mutex_init(&data->mutex);
2416 /* Enable frame retransmissions for lossy channels */
2418 hw->max_rate_tries = 11;
2420 if (param->reg_strict)
2421 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2423 data->regd = param->regd;
2424 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2425 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
2426 /* give the regulatory workqueue a chance to run */
2427 schedule_timeout_interruptible(1);
2431 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2433 err = ieee80211_register_hw(hw);
2435 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2440 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2442 if (param->reg_alpha2) {
2443 data->alpha2[0] = param->reg_alpha2[0];
2444 data->alpha2[1] = param->reg_alpha2[1];
2445 regulatory_hint(hw->wiphy, param->reg_alpha2);
2448 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2449 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2450 debugfs_create_file("group", 0666, data->debugfs, data,
2452 if (!data->use_chanctx)
2453 debugfs_create_file("dfs_simulate_radar", 0222,
2455 data, &hwsim_simulate_radar);
2457 tasklet_hrtimer_init(&data->beacon_timer,
2458 mac80211_hwsim_beacon,
2459 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
2461 spin_lock_bh(&hwsim_radio_lock);
2462 list_add_tail(&data->list, &hwsim_radios);
2463 spin_unlock_bh(&hwsim_radio_lock);
2466 hwsim_mcast_new_radio(idx, info, param);
2471 device_release_driver(data->dev);
2473 device_unregister(data->dev);
2475 ieee80211_free_hw(hw);
2480 static void hwsim_mcast_del_radio(int id, const char *hwname,
2481 struct genl_info *info)
2483 struct sk_buff *skb;
2487 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2491 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2492 HWSIM_CMD_DEL_RADIO);
2496 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2500 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2505 genlmsg_end(skb, data);
2507 hwsim_mcast_config_msg(skb, info);
2515 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2517 struct genl_info *info)
2519 hwsim_mcast_del_radio(data->idx, hwname, info);
2520 debugfs_remove_recursive(data->debugfs);
2521 ieee80211_unregister_hw(data->hw);
2522 device_release_driver(data->dev);
2523 device_unregister(data->dev);
2524 ieee80211_free_hw(data->hw);
2527 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2528 struct mac80211_hwsim_data *data,
2529 u32 portid, u32 seq,
2530 struct netlink_callback *cb, int flags)
2533 struct hwsim_new_radio_params param = { };
2534 int res = -EMSGSIZE;
2536 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2537 HWSIM_CMD_GET_RADIO);
2542 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2544 if (data->alpha2[0] && data->alpha2[1])
2545 param.reg_alpha2 = data->alpha2;
2547 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2548 REGULATORY_STRICT_REG);
2549 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2550 BIT(NL80211_IFTYPE_P2P_DEVICE));
2551 param.use_chanctx = data->use_chanctx;
2552 param.regd = data->regd;
2553 param.channels = data->channels;
2554 param.hwname = wiphy_name(data->hw->wiphy);
2556 res = append_radio_msg(skb, data->idx, ¶m);
2560 return genlmsg_end(skb, hdr);
2563 genlmsg_cancel(skb, hdr);
2567 static void mac80211_hwsim_free(void)
2569 struct mac80211_hwsim_data *data;
2571 spin_lock_bh(&hwsim_radio_lock);
2572 while ((data = list_first_entry_or_null(&hwsim_radios,
2573 struct mac80211_hwsim_data,
2575 list_del(&data->list);
2576 spin_unlock_bh(&hwsim_radio_lock);
2577 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2579 spin_lock_bh(&hwsim_radio_lock);
2581 spin_unlock_bh(&hwsim_radio_lock);
2582 class_destroy(hwsim_class);
2585 static const struct net_device_ops hwsim_netdev_ops = {
2586 .ndo_start_xmit = hwsim_mon_xmit,
2587 .ndo_change_mtu = eth_change_mtu,
2588 .ndo_set_mac_address = eth_mac_addr,
2589 .ndo_validate_addr = eth_validate_addr,
2592 static void hwsim_mon_setup(struct net_device *dev)
2594 dev->netdev_ops = &hwsim_netdev_ops;
2595 dev->destructor = free_netdev;
2597 dev->tx_queue_len = 0;
2598 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2599 memset(dev->dev_addr, 0, ETH_ALEN);
2600 dev->dev_addr[0] = 0x12;
2603 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
2605 struct mac80211_hwsim_data *data;
2606 bool _found = false;
2608 spin_lock_bh(&hwsim_radio_lock);
2609 list_for_each_entry(data, &hwsim_radios, list) {
2610 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
2615 spin_unlock_bh(&hwsim_radio_lock);
2623 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2624 struct genl_info *info)
2627 struct ieee80211_hdr *hdr;
2628 struct mac80211_hwsim_data *data2;
2629 struct ieee80211_tx_info *txi;
2630 struct hwsim_tx_rate *tx_attempts;
2631 unsigned long ret_skb_ptr;
2632 struct sk_buff *skb, *tmp;
2634 unsigned int hwsim_flags;
2638 if (info->snd_portid != wmediumd_portid)
2641 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
2642 !info->attrs[HWSIM_ATTR_FLAGS] ||
2643 !info->attrs[HWSIM_ATTR_COOKIE] ||
2644 !info->attrs[HWSIM_ATTR_TX_INFO])
2647 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
2648 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
2649 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
2651 data2 = get_hwsim_data_ref_from_addr(src);
2655 /* look for the skb matching the cookie passed back from user */
2656 skb_queue_walk_safe(&data2->pending, skb, tmp) {
2657 if ((unsigned long)skb == ret_skb_ptr) {
2658 skb_unlink(skb, &data2->pending);
2668 /* Tx info received because the frame was broadcasted on user space,
2669 so we get all the necessary info: tx attempts and skb control buff */
2671 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2672 info->attrs[HWSIM_ATTR_TX_INFO]);
2674 /* now send back TX status */
2675 txi = IEEE80211_SKB_CB(skb);
2677 ieee80211_tx_info_clear_status(txi);
2679 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2680 txi->status.rates[i].idx = tx_attempts[i].idx;
2681 txi->status.rates[i].count = tx_attempts[i].count;
2682 /*txi->status.rates[i].flags = 0;*/
2685 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2687 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2688 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2689 if (skb->len >= 16) {
2690 hdr = (struct ieee80211_hdr *) skb->data;
2691 mac80211_hwsim_monitor_ack(data2->channel,
2694 txi->flags |= IEEE80211_TX_STAT_ACK;
2696 ieee80211_tx_status_irqsafe(data2->hw, skb);
2703 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2704 struct genl_info *info)
2706 struct mac80211_hwsim_data *data2;
2707 struct ieee80211_rx_status rx_status;
2711 struct sk_buff *skb = NULL;
2713 if (info->snd_portid != wmediumd_portid)
2716 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
2717 !info->attrs[HWSIM_ATTR_FRAME] ||
2718 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2719 !info->attrs[HWSIM_ATTR_SIGNAL])
2722 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2723 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2724 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2726 /* Allocate new skb here */
2727 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2731 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
2735 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
2737 data2 = get_hwsim_data_ref_from_addr(dst);
2741 /* check if radio is configured properly */
2743 if (data2->idle || !data2->started)
2746 /* A frame is received from user space */
2747 memset(&rx_status, 0, sizeof(rx_status));
2748 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2751 rx_status.freq = data2->channel->center_freq;
2752 rx_status.band = data2->channel->band;
2753 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2754 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2756 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2758 data2->rx_bytes += skb->len;
2759 ieee80211_rx_irqsafe(data2->hw, skb);
2763 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2769 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2770 struct genl_info *info)
2772 struct mac80211_hwsim_data *data;
2775 spin_lock_bh(&hwsim_radio_lock);
2776 list_for_each_entry(data, &hwsim_radios, list)
2777 chans = max(chans, data->channels);
2778 spin_unlock_bh(&hwsim_radio_lock);
2780 /* In the future we should revise the userspace API and allow it
2781 * to set a flag that it does support multi-channel, then we can
2782 * let this pass conditionally on the flag.
2783 * For current userspace, prohibit it since it won't work right.
2788 if (wmediumd_portid)
2791 wmediumd_portid = info->snd_portid;
2793 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2794 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2799 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
2801 struct hwsim_new_radio_params param = { 0 };
2803 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
2804 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
2805 param.channels = channels;
2806 param.destroy_on_close =
2807 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
2809 if (info->attrs[HWSIM_ATTR_CHANNELS])
2810 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
2812 if (info->attrs[HWSIM_ATTR_NO_VIF])
2813 param.no_vif = true;
2815 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2816 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2818 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
2819 param.use_chanctx = true;
2821 param.use_chanctx = (param.channels > 1);
2823 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
2825 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
2827 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2828 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2830 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2832 param.regd = hwsim_world_regdom_custom[idx];
2835 return mac80211_hwsim_new_radio(info, ¶m);
2838 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
2840 struct mac80211_hwsim_data *data;
2842 const char *hwname = NULL;
2844 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2845 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2846 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2847 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2851 spin_lock_bh(&hwsim_radio_lock);
2852 list_for_each_entry(data, &hwsim_radios, list) {
2854 if (data->idx != idx)
2857 if (strcmp(hwname, wiphy_name(data->hw->wiphy)))
2861 list_del(&data->list);
2862 spin_unlock_bh(&hwsim_radio_lock);
2863 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2867 spin_unlock_bh(&hwsim_radio_lock);
2872 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
2874 struct mac80211_hwsim_data *data;
2875 struct sk_buff *skb;
2876 int idx, res = -ENODEV;
2878 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
2880 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2882 spin_lock_bh(&hwsim_radio_lock);
2883 list_for_each_entry(data, &hwsim_radios, list) {
2884 if (data->idx != idx)
2887 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2893 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
2894 info->snd_seq, NULL, 0);
2900 genlmsg_reply(skb, info);
2905 spin_unlock_bh(&hwsim_radio_lock);
2910 static int hwsim_dump_radio_nl(struct sk_buff *skb,
2911 struct netlink_callback *cb)
2913 int idx = cb->args[0];
2914 struct mac80211_hwsim_data *data = NULL;
2917 spin_lock_bh(&hwsim_radio_lock);
2919 if (idx == hwsim_radio_idx)
2922 list_for_each_entry(data, &hwsim_radios, list) {
2923 if (data->idx < idx)
2926 res = mac80211_hwsim_get_radio(skb, data,
2927 NETLINK_CB(cb->skb).portid,
2928 cb->nlh->nlmsg_seq, cb,
2933 idx = data->idx + 1;
2939 spin_unlock_bh(&hwsim_radio_lock);
2943 /* Generic Netlink operations array */
2944 static const struct genl_ops hwsim_ops[] = {
2946 .cmd = HWSIM_CMD_REGISTER,
2947 .policy = hwsim_genl_policy,
2948 .doit = hwsim_register_received_nl,
2949 .flags = GENL_ADMIN_PERM,
2952 .cmd = HWSIM_CMD_FRAME,
2953 .policy = hwsim_genl_policy,
2954 .doit = hwsim_cloned_frame_received_nl,
2957 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2958 .policy = hwsim_genl_policy,
2959 .doit = hwsim_tx_info_frame_received_nl,
2962 .cmd = HWSIM_CMD_NEW_RADIO,
2963 .policy = hwsim_genl_policy,
2964 .doit = hwsim_new_radio_nl,
2965 .flags = GENL_ADMIN_PERM,
2968 .cmd = HWSIM_CMD_DEL_RADIO,
2969 .policy = hwsim_genl_policy,
2970 .doit = hwsim_del_radio_nl,
2971 .flags = GENL_ADMIN_PERM,
2974 .cmd = HWSIM_CMD_GET_RADIO,
2975 .policy = hwsim_genl_policy,
2976 .doit = hwsim_get_radio_nl,
2977 .dumpit = hwsim_dump_radio_nl,
2981 static void destroy_radio(struct work_struct *work)
2983 struct mac80211_hwsim_data *data =
2984 container_of(work, struct mac80211_hwsim_data, destroy_work);
2986 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
2989 static void remove_user_radios(u32 portid)
2991 struct mac80211_hwsim_data *entry, *tmp;
2993 spin_lock_bh(&hwsim_radio_lock);
2994 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
2995 if (entry->destroy_on_close && entry->portid == portid) {
2996 list_del(&entry->list);
2997 INIT_WORK(&entry->destroy_work, destroy_radio);
2998 schedule_work(&entry->destroy_work);
3001 spin_unlock_bh(&hwsim_radio_lock);
3004 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3005 unsigned long state,
3008 struct netlink_notify *notify = _notify;
3010 if (state != NETLINK_URELEASE)
3013 remove_user_radios(notify->portid);
3015 if (notify->portid == wmediumd_portid) {
3016 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3017 " socket, switching to perfect channel medium\n");
3018 wmediumd_portid = 0;
3024 static struct notifier_block hwsim_netlink_notifier = {
3025 .notifier_call = mac80211_hwsim_netlink_notify,
3028 static int hwsim_init_netlink(void)
3032 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3034 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
3040 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3047 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
3051 static void hwsim_exit_netlink(void)
3053 /* unregister the notifier */
3054 netlink_unregister_notifier(&hwsim_netlink_notifier);
3055 /* unregister the family */
3056 genl_unregister_family(&hwsim_genl_family);
3059 static int __init init_mac80211_hwsim(void)
3063 if (radios < 0 || radios > 100)
3069 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
3070 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
3071 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
3072 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
3073 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
3074 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
3075 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
3076 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
3077 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
3078 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
3079 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
3080 mac80211_hwsim_assign_vif_chanctx;
3081 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
3082 mac80211_hwsim_unassign_vif_chanctx;
3084 spin_lock_init(&hwsim_radio_lock);
3085 INIT_LIST_HEAD(&hwsim_radios);
3087 err = platform_driver_register(&mac80211_hwsim_driver);
3091 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3092 if (IS_ERR(hwsim_class)) {
3093 err = PTR_ERR(hwsim_class);
3094 goto out_unregister_driver;
3097 err = hwsim_init_netlink();
3099 goto out_unregister_driver;
3101 for (i = 0; i < radios; i++) {
3102 struct hwsim_new_radio_params param = { 0 };
3104 param.channels = channels;
3107 case HWSIM_REGTEST_DIFF_COUNTRY:
3108 if (i < ARRAY_SIZE(hwsim_alpha2s))
3109 param.reg_alpha2 = hwsim_alpha2s[i];
3111 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3113 param.reg_alpha2 = hwsim_alpha2s[0];
3115 case HWSIM_REGTEST_STRICT_ALL:
3116 param.reg_strict = true;
3117 case HWSIM_REGTEST_DRIVER_REG_ALL:
3118 param.reg_alpha2 = hwsim_alpha2s[0];
3120 case HWSIM_REGTEST_WORLD_ROAM:
3122 param.regd = &hwsim_world_regdom_custom_01;
3124 case HWSIM_REGTEST_CUSTOM_WORLD:
3125 param.regd = &hwsim_world_regdom_custom_01;
3127 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3129 param.regd = &hwsim_world_regdom_custom_01;
3131 param.regd = &hwsim_world_regdom_custom_02;
3133 case HWSIM_REGTEST_STRICT_FOLLOW:
3135 param.reg_strict = true;
3136 param.reg_alpha2 = hwsim_alpha2s[0];
3139 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
3141 param.reg_strict = true;
3142 param.reg_alpha2 = hwsim_alpha2s[0];
3143 } else if (i == 1) {
3144 param.reg_alpha2 = hwsim_alpha2s[1];
3147 case HWSIM_REGTEST_ALL:
3150 param.regd = &hwsim_world_regdom_custom_01;
3153 param.regd = &hwsim_world_regdom_custom_02;
3156 param.reg_alpha2 = hwsim_alpha2s[0];
3159 param.reg_alpha2 = hwsim_alpha2s[1];
3162 param.reg_strict = true;
3163 param.reg_alpha2 = hwsim_alpha2s[2];
3171 param.p2p_device = support_p2p_device;
3172 param.use_chanctx = channels > 1;
3174 err = mac80211_hwsim_new_radio(NULL, ¶m);
3176 goto out_free_radios;
3179 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3181 if (hwsim_mon == NULL) {
3183 goto out_free_radios;
3187 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3190 goto out_free_radios;
3193 err = register_netdevice(hwsim_mon);
3203 free_netdev(hwsim_mon);
3205 mac80211_hwsim_free();
3206 out_unregister_driver:
3207 platform_driver_unregister(&mac80211_hwsim_driver);
3210 module_init(init_mac80211_hwsim);
3212 static void __exit exit_mac80211_hwsim(void)
3214 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
3216 hwsim_exit_netlink();
3218 mac80211_hwsim_free();
3219 unregister_netdev(hwsim_mon);
3220 platform_driver_unregister(&mac80211_hwsim_driver);
3222 module_exit(exit_mac80211_hwsim);