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 #define OUI_QCA 0x001374
334 #define QCA_NL80211_SUBCMD_TEST 1
335 enum qca_nl80211_vendor_subcmds {
336 QCA_WLAN_VENDOR_ATTR_TEST = 8,
337 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
340 static const struct nla_policy
341 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
342 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
345 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
346 struct wireless_dev *wdev,
347 const void *data, int data_len)
350 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
354 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
355 hwsim_vendor_test_policy);
358 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
360 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
361 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
363 /* Send a vendor event as a test. Note that this would not normally be
364 * done within a command handler, but rather, based on some other
365 * trigger. For simplicity, this command is used to trigger the event
368 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
370 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
372 /* skb_put() or nla_put() will fill up data within
373 * NL80211_ATTR_VENDOR_DATA.
376 /* Add vendor data */
377 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
379 /* Send the event - this will call nla_nest_end() */
380 cfg80211_vendor_event(skb, GFP_KERNEL);
383 /* Send a response to the command */
384 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
388 /* skb_put() or nla_put() will fill up data within
389 * NL80211_ATTR_VENDOR_DATA
391 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
393 return cfg80211_vendor_cmd_reply(skb);
396 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
398 .info = { .vendor_id = OUI_QCA,
399 .subcmd = QCA_NL80211_SUBCMD_TEST },
400 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
401 .doit = mac80211_hwsim_vendor_cmd_test,
405 /* Advertise support vendor specific events */
406 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
407 { .vendor_id = OUI_QCA, .subcmd = 1 },
410 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
411 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
412 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
413 BIT(NL80211_IFTYPE_P2P_CLIENT) |
414 #ifdef CONFIG_MAC80211_MESH
415 BIT(NL80211_IFTYPE_MESH_POINT) |
417 BIT(NL80211_IFTYPE_AP) |
418 BIT(NL80211_IFTYPE_P2P_GO) },
419 /* must be last, see hwsim_if_comb */
420 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
423 static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
424 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
427 static const struct ieee80211_iface_combination hwsim_if_comb[] = {
429 .limits = hwsim_if_limits,
430 /* remove the last entry which is P2P_DEVICE */
431 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
432 .max_interfaces = 2048,
433 .num_different_channels = 1,
436 .limits = hwsim_if_dfs_limits,
437 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
439 .num_different_channels = 1,
440 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
441 BIT(NL80211_CHAN_WIDTH_20) |
442 BIT(NL80211_CHAN_WIDTH_40) |
443 BIT(NL80211_CHAN_WIDTH_80) |
444 BIT(NL80211_CHAN_WIDTH_160),
448 static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
450 .limits = hwsim_if_limits,
451 .n_limits = ARRAY_SIZE(hwsim_if_limits),
452 .max_interfaces = 2048,
453 .num_different_channels = 1,
456 .limits = hwsim_if_dfs_limits,
457 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
459 .num_different_channels = 1,
460 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
461 BIT(NL80211_CHAN_WIDTH_20) |
462 BIT(NL80211_CHAN_WIDTH_40) |
463 BIT(NL80211_CHAN_WIDTH_80) |
464 BIT(NL80211_CHAN_WIDTH_160),
468 static spinlock_t hwsim_radio_lock;
469 static struct list_head hwsim_radios;
470 static int hwsim_radio_idx;
472 static struct platform_driver mac80211_hwsim_driver = {
474 .name = "mac80211_hwsim",
478 struct mac80211_hwsim_data {
479 struct list_head list;
480 struct ieee80211_hw *hw;
482 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
483 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
484 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
485 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
486 struct ieee80211_iface_combination if_combination;
488 struct mac_address addresses[2];
491 bool destroy_on_close;
492 struct work_struct destroy_work;
495 const struct ieee80211_regdomain *regd;
497 struct ieee80211_channel *tmp_chan;
498 struct delayed_work roc_done;
499 struct delayed_work hw_scan;
500 struct cfg80211_scan_request *hw_scan_request;
501 struct ieee80211_vif *hw_scan_vif;
503 u8 scan_addr[ETH_ALEN];
505 struct ieee80211_channel *channel;
506 u64 beacon_int /* beacon interval in us */;
507 unsigned int rx_filter;
508 bool started, idle, scanning;
510 struct tasklet_hrtimer beacon_timer;
512 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
514 bool ps_poll_pending;
515 struct dentry *debugfs;
517 struct sk_buff_head pending; /* packets pending */
519 * Only radios in the same group can communicate together (the
520 * channel has to match too). Each bit represents a group. A
521 * radio can be in more than one group.
527 /* difference between this hw's clock and the real clock, in usecs */
530 /* absolute beacon transmission time. Used to cover up "tx" delay. */
543 struct hwsim_radiotap_hdr {
544 struct ieee80211_radiotap_header hdr;
552 struct hwsim_radiotap_ack_hdr {
553 struct ieee80211_radiotap_header hdr;
560 /* MAC80211_HWSIM netlinf family */
561 static struct genl_family hwsim_genl_family = {
562 .id = GENL_ID_GENERATE,
564 .name = "MAC80211_HWSIM",
566 .maxattr = HWSIM_ATTR_MAX,
569 enum hwsim_multicast_groups {
573 static const struct genl_multicast_group hwsim_mcgrps[] = {
574 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
577 /* MAC80211_HWSIM netlink policy */
579 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
580 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
581 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
582 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
583 .len = IEEE80211_MAX_DATA_LEN },
584 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
585 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
586 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
587 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
588 .len = IEEE80211_TX_MAX_RATES *
589 sizeof(struct hwsim_tx_rate)},
590 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
591 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
592 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
593 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
594 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
595 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
596 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
597 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
598 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
599 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
600 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
603 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
605 struct ieee80211_channel *chan);
607 /* sysfs attributes */
608 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
610 struct mac80211_hwsim_data *data = dat;
611 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
613 struct ieee80211_pspoll *pspoll;
618 wiphy_debug(data->hw->wiphy,
619 "%s: send PS-Poll to %pM for aid %d\n",
620 __func__, vp->bssid, vp->aid);
622 skb = dev_alloc_skb(sizeof(*pspoll));
625 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
626 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
627 IEEE80211_STYPE_PSPOLL |
629 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
630 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
631 memcpy(pspoll->ta, mac, ETH_ALEN);
634 mac80211_hwsim_tx_frame(data->hw, skb,
635 rcu_dereference(vif->chanctx_conf)->def.chan);
639 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
640 struct ieee80211_vif *vif, int ps)
642 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
644 struct ieee80211_hdr *hdr;
649 wiphy_debug(data->hw->wiphy,
650 "%s: send data::nullfunc to %pM ps=%d\n",
651 __func__, vp->bssid, ps);
653 skb = dev_alloc_skb(sizeof(*hdr));
656 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
657 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
658 IEEE80211_STYPE_NULLFUNC |
659 (ps ? IEEE80211_FCTL_PM : 0));
660 hdr->duration_id = cpu_to_le16(0);
661 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
662 memcpy(hdr->addr2, mac, ETH_ALEN);
663 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
666 mac80211_hwsim_tx_frame(data->hw, skb,
667 rcu_dereference(vif->chanctx_conf)->def.chan);
672 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
673 struct ieee80211_vif *vif)
675 struct mac80211_hwsim_data *data = dat;
676 hwsim_send_nullfunc(data, mac, vif, 1);
679 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
680 struct ieee80211_vif *vif)
682 struct mac80211_hwsim_data *data = dat;
683 hwsim_send_nullfunc(data, mac, vif, 0);
686 static int hwsim_fops_ps_read(void *dat, u64 *val)
688 struct mac80211_hwsim_data *data = dat;
693 static int hwsim_fops_ps_write(void *dat, u64 val)
695 struct mac80211_hwsim_data *data = dat;
698 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
699 val != PS_MANUAL_POLL)
706 if (val == PS_MANUAL_POLL) {
707 ieee80211_iterate_active_interfaces_atomic(
708 data->hw, IEEE80211_IFACE_ITER_NORMAL,
709 hwsim_send_ps_poll, data);
710 data->ps_poll_pending = true;
711 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
712 ieee80211_iterate_active_interfaces_atomic(
713 data->hw, IEEE80211_IFACE_ITER_NORMAL,
714 hwsim_send_nullfunc_ps, data);
715 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
716 ieee80211_iterate_active_interfaces_atomic(
717 data->hw, IEEE80211_IFACE_ITER_NORMAL,
718 hwsim_send_nullfunc_no_ps, data);
725 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
728 static int hwsim_write_simulate_radar(void *dat, u64 val)
730 struct mac80211_hwsim_data *data = dat;
732 ieee80211_radar_detected(data->hw);
737 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
738 hwsim_write_simulate_radar, "%llu\n");
740 static int hwsim_fops_group_read(void *dat, u64 *val)
742 struct mac80211_hwsim_data *data = dat;
747 static int hwsim_fops_group_write(void *dat, u64 val)
749 struct mac80211_hwsim_data *data = dat;
754 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
755 hwsim_fops_group_read, hwsim_fops_group_write,
758 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
759 struct net_device *dev)
761 /* TODO: allow packet injection */
766 static inline u64 mac80211_hwsim_get_tsf_raw(void)
768 return ktime_to_us(ktime_get_real());
771 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
773 u64 now = mac80211_hwsim_get_tsf_raw();
774 return cpu_to_le64(now + data->tsf_offset);
777 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
778 struct ieee80211_vif *vif)
780 struct mac80211_hwsim_data *data = hw->priv;
781 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
784 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
785 struct ieee80211_vif *vif, u64 tsf)
787 struct mac80211_hwsim_data *data = hw->priv;
788 u64 now = mac80211_hwsim_get_tsf(hw, vif);
789 u32 bcn_int = data->beacon_int;
790 u64 delta = abs64(tsf - now);
792 /* adjust after beaconing with new timestamp at old TBTT */
794 data->tsf_offset += delta;
795 data->bcn_delta = do_div(delta, bcn_int);
797 data->tsf_offset -= delta;
798 data->bcn_delta = -do_div(delta, bcn_int);
802 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
803 struct sk_buff *tx_skb,
804 struct ieee80211_channel *chan)
806 struct mac80211_hwsim_data *data = hw->priv;
808 struct hwsim_radiotap_hdr *hdr;
810 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
811 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
813 if (!netif_running(hwsim_mon))
816 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
820 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
821 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
823 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
824 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
825 (1 << IEEE80211_RADIOTAP_RATE) |
826 (1 << IEEE80211_RADIOTAP_TSFT) |
827 (1 << IEEE80211_RADIOTAP_CHANNEL));
828 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
830 hdr->rt_rate = txrate->bitrate / 5;
831 hdr->rt_channel = cpu_to_le16(chan->center_freq);
832 flags = IEEE80211_CHAN_2GHZ;
833 if (txrate->flags & IEEE80211_RATE_ERP_G)
834 flags |= IEEE80211_CHAN_OFDM;
836 flags |= IEEE80211_CHAN_CCK;
837 hdr->rt_chbitmask = cpu_to_le16(flags);
839 skb->dev = hwsim_mon;
840 skb_set_mac_header(skb, 0);
841 skb->ip_summed = CHECKSUM_UNNECESSARY;
842 skb->pkt_type = PACKET_OTHERHOST;
843 skb->protocol = htons(ETH_P_802_2);
844 memset(skb->cb, 0, sizeof(skb->cb));
849 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
853 struct hwsim_radiotap_ack_hdr *hdr;
855 struct ieee80211_hdr *hdr11;
857 if (!netif_running(hwsim_mon))
860 skb = dev_alloc_skb(100);
864 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
865 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
867 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
868 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
869 (1 << IEEE80211_RADIOTAP_CHANNEL));
872 hdr->rt_channel = cpu_to_le16(chan->center_freq);
873 flags = IEEE80211_CHAN_2GHZ;
874 hdr->rt_chbitmask = cpu_to_le16(flags);
876 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
877 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
878 IEEE80211_STYPE_ACK);
879 hdr11->duration_id = cpu_to_le16(0);
880 memcpy(hdr11->addr1, addr, ETH_ALEN);
882 skb->dev = hwsim_mon;
883 skb_set_mac_header(skb, 0);
884 skb->ip_summed = CHECKSUM_UNNECESSARY;
885 skb->pkt_type = PACKET_OTHERHOST;
886 skb->protocol = htons(ETH_P_802_2);
887 memset(skb->cb, 0, sizeof(skb->cb));
891 struct mac80211_hwsim_addr_match_data {
896 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
897 struct ieee80211_vif *vif)
899 struct mac80211_hwsim_addr_match_data *md = data;
901 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
905 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
908 struct mac80211_hwsim_addr_match_data md = {
912 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
915 memcpy(md.addr, addr, ETH_ALEN);
917 ieee80211_iterate_active_interfaces_atomic(data->hw,
918 IEEE80211_IFACE_ITER_NORMAL,
919 mac80211_hwsim_addr_iter,
925 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
934 /* TODO: accept (some) Beacons by default and other frames only
935 * if pending PS-Poll has been sent */
938 /* Allow unicast frames to own address if there is a pending
940 if (data->ps_poll_pending &&
941 mac80211_hwsim_addr_match(data, skb->data + 4)) {
942 data->ps_poll_pending = false;
951 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
952 struct sk_buff *my_skb,
956 struct mac80211_hwsim_data *data = hw->priv;
957 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
958 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
960 unsigned int hwsim_flags = 0;
962 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
964 if (data->ps != PS_DISABLED)
965 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
966 /* If the queue contains MAX_QUEUE skb's drop some */
967 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
968 /* Droping until WARN_QUEUE level */
969 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
970 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
975 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
977 goto nla_put_failure;
979 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
981 if (msg_head == NULL) {
982 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
983 goto nla_put_failure;
986 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER, ETH_ALEN, hdr->addr2))
987 goto nla_put_failure;
989 /* We get the skb->data */
990 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
991 goto nla_put_failure;
993 /* We get the flags for this transmission, and we translate them to
996 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
997 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
999 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1000 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1002 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1003 goto nla_put_failure;
1005 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1006 goto nla_put_failure;
1008 /* We get the tx control (rate and retries) info*/
1010 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1011 tx_attempts[i].idx = info->status.rates[i].idx;
1012 tx_attempts[i].count = info->status.rates[i].count;
1015 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1016 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1018 goto nla_put_failure;
1020 /* We create a cookie to identify this skb */
1021 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
1022 goto nla_put_failure;
1024 genlmsg_end(skb, msg_head);
1025 if (genlmsg_unicast(&init_net, skb, dst_portid))
1026 goto err_free_txskb;
1028 /* Enqueue the packet */
1029 skb_queue_tail(&data->pending, my_skb);
1031 data->tx_bytes += my_skb->len;
1037 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1038 ieee80211_free_txskb(hw, my_skb);
1042 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1043 struct ieee80211_channel *c2)
1048 return c1->center_freq == c2->center_freq;
1051 struct tx_iter_data {
1052 struct ieee80211_channel *channel;
1056 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1057 struct ieee80211_vif *vif)
1059 struct tx_iter_data *data = _data;
1061 if (!vif->chanctx_conf)
1064 if (!hwsim_chans_compat(data->channel,
1065 rcu_dereference(vif->chanctx_conf)->def.chan))
1068 data->receive = true;
1071 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1074 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1076 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1077 * (but you should use a valid OUI, not that)
1079 * If anyone wants to 'donate' a radiotap OUI/subns code
1080 * please send a patch removing this #ifdef and changing
1081 * the values accordingly.
1083 #ifdef HWSIM_RADIOTAP_OUI
1084 struct ieee80211_vendor_radiotap *rtap;
1087 * Note that this code requires the headroom in the SKB
1088 * that was allocated earlier.
1090 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1091 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1092 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1093 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1097 * Radiotap vendor namespaces can (and should) also be
1098 * split into fields by using the standard radiotap
1099 * presence bitmap mechanism. Use just BIT(0) here for
1100 * the presence bitmap.
1102 rtap->present = BIT(0);
1103 /* We have 8 bytes of (dummy) data */
1105 /* For testing, also require it to be aligned */
1107 /* And also test that padding works, 4 bytes */
1110 memcpy(rtap->data, "ABCDEFGH", 8);
1111 /* make sure to clear padding, mac80211 doesn't */
1112 memset(rtap->data + 8, 0, 4);
1114 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1118 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1119 struct sk_buff *skb,
1120 struct ieee80211_channel *chan)
1122 struct mac80211_hwsim_data *data = hw->priv, *data2;
1124 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1125 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1126 struct ieee80211_rx_status rx_status;
1129 memset(&rx_status, 0, sizeof(rx_status));
1130 rx_status.flag |= RX_FLAG_MACTIME_START;
1131 rx_status.freq = chan->center_freq;
1132 rx_status.band = chan->band;
1133 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1134 rx_status.rate_idx =
1135 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1137 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1138 rx_status.flag |= RX_FLAG_VHT;
1140 rx_status.rate_idx = info->control.rates[0].idx;
1141 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1142 rx_status.flag |= RX_FLAG_HT;
1144 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1145 rx_status.flag |= RX_FLAG_40MHZ;
1146 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1147 rx_status.flag |= RX_FLAG_SHORT_GI;
1148 /* TODO: simulate real signal strength (and optional packet loss) */
1149 rx_status.signal = data->power_level - 50;
1151 if (data->ps != PS_DISABLED)
1152 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1154 /* release the skb's source info */
1162 * Get absolute mactime here so all HWs RX at the "same time", and
1163 * absolute TX time for beacon mactime so the timestamp matches.
1164 * Giving beacons a different mactime than non-beacons looks messy, but
1165 * it helps the Toffset be exact and a ~10us mactime discrepancy
1166 * probably doesn't really matter.
1168 if (ieee80211_is_beacon(hdr->frame_control) ||
1169 ieee80211_is_probe_resp(hdr->frame_control))
1170 now = data->abs_bcn_ts;
1172 now = mac80211_hwsim_get_tsf_raw();
1174 /* Copy skb to all enabled radios that are on the current frequency */
1175 spin_lock(&hwsim_radio_lock);
1176 list_for_each_entry(data2, &hwsim_radios, list) {
1177 struct sk_buff *nskb;
1178 struct tx_iter_data tx_iter_data = {
1186 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1187 !hwsim_ps_rx_ok(data2, skb))
1190 if (!(data->group & data2->group))
1193 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1194 !hwsim_chans_compat(chan, data2->channel)) {
1195 ieee80211_iterate_active_interfaces_atomic(
1196 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1197 mac80211_hwsim_tx_iter, &tx_iter_data);
1198 if (!tx_iter_data.receive)
1203 * reserve some space for our vendor and the normal
1204 * radiotap header, since we're copying anyway
1206 if (skb->len < PAGE_SIZE && paged_rx) {
1207 struct page *page = alloc_page(GFP_ATOMIC);
1212 nskb = dev_alloc_skb(128);
1218 memcpy(page_address(page), skb->data, skb->len);
1219 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1221 nskb = skb_copy(skb, GFP_ATOMIC);
1226 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1229 rx_status.mactime = now + data2->tsf_offset;
1231 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1233 mac80211_hwsim_add_vendor_rtap(nskb);
1236 data2->rx_bytes += nskb->len;
1237 ieee80211_rx_irqsafe(data2->hw, nskb);
1239 spin_unlock(&hwsim_radio_lock);
1244 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1245 struct ieee80211_tx_control *control,
1246 struct sk_buff *skb)
1248 struct mac80211_hwsim_data *data = hw->priv;
1249 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1250 struct ieee80211_chanctx_conf *chanctx_conf;
1251 struct ieee80211_channel *channel;
1255 if (WARN_ON(skb->len < 10)) {
1256 /* Should not happen; just a sanity check for addr1 use */
1257 ieee80211_free_txskb(hw, skb);
1261 if (!data->use_chanctx) {
1262 channel = data->channel;
1263 } else if (txi->hw_queue == 4) {
1264 channel = data->tmp_chan;
1266 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1268 channel = chanctx_conf->def.chan;
1273 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1274 ieee80211_free_txskb(hw, skb);
1278 if (data->idle && !data->tmp_chan) {
1279 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
1280 ieee80211_free_txskb(hw, skb);
1284 if (txi->control.vif)
1285 hwsim_check_magic(txi->control.vif);
1287 hwsim_check_sta_magic(control->sta);
1289 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1290 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1292 ARRAY_SIZE(txi->control.rates));
1294 txi->rate_driver_data[0] = channel;
1295 mac80211_hwsim_monitor_rx(hw, skb, channel);
1297 /* wmediumd mode check */
1298 _portid = ACCESS_ONCE(wmediumd_portid);
1301 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1303 /* NO wmediumd detected, perfect medium simulation */
1305 data->tx_bytes += skb->len;
1306 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1308 if (ack && skb->len >= 16) {
1309 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1310 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1313 ieee80211_tx_info_clear_status(txi);
1315 /* frame was transmitted at most favorable rate at first attempt */
1316 txi->control.rates[0].count = 1;
1317 txi->control.rates[1].idx = -1;
1319 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1320 txi->flags |= IEEE80211_TX_STAT_ACK;
1321 ieee80211_tx_status_irqsafe(hw, skb);
1325 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1327 struct mac80211_hwsim_data *data = hw->priv;
1328 wiphy_debug(hw->wiphy, "%s\n", __func__);
1329 data->started = true;
1334 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1336 struct mac80211_hwsim_data *data = hw->priv;
1337 data->started = false;
1338 tasklet_hrtimer_cancel(&data->beacon_timer);
1339 wiphy_debug(hw->wiphy, "%s\n", __func__);
1343 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1344 struct ieee80211_vif *vif)
1346 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1347 __func__, ieee80211_vif_type_p2p(vif),
1349 hwsim_set_magic(vif);
1352 vif->hw_queue[IEEE80211_AC_VO] = 0;
1353 vif->hw_queue[IEEE80211_AC_VI] = 1;
1354 vif->hw_queue[IEEE80211_AC_BE] = 2;
1355 vif->hw_queue[IEEE80211_AC_BK] = 3;
1361 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1362 struct ieee80211_vif *vif,
1363 enum nl80211_iftype newtype,
1366 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1367 wiphy_debug(hw->wiphy,
1368 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1369 __func__, ieee80211_vif_type_p2p(vif),
1370 newtype, vif->addr);
1371 hwsim_check_magic(vif);
1374 * interface may change from non-AP to AP in
1375 * which case this needs to be set up again
1382 static void mac80211_hwsim_remove_interface(
1383 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1385 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1386 __func__, ieee80211_vif_type_p2p(vif),
1388 hwsim_check_magic(vif);
1389 hwsim_clear_magic(vif);
1392 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1393 struct sk_buff *skb,
1394 struct ieee80211_channel *chan)
1396 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1398 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1399 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1400 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1402 ARRAY_SIZE(txi->control.rates));
1405 mac80211_hwsim_monitor_rx(hw, skb, chan);
1408 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1410 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1414 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1415 struct ieee80211_vif *vif)
1417 struct mac80211_hwsim_data *data = arg;
1418 struct ieee80211_hw *hw = data->hw;
1419 struct ieee80211_tx_info *info;
1420 struct ieee80211_rate *txrate;
1421 struct ieee80211_mgmt *mgmt;
1422 struct sk_buff *skb;
1424 hwsim_check_magic(vif);
1426 if (vif->type != NL80211_IFTYPE_AP &&
1427 vif->type != NL80211_IFTYPE_MESH_POINT &&
1428 vif->type != NL80211_IFTYPE_ADHOC)
1431 skb = ieee80211_beacon_get(hw, vif);
1434 info = IEEE80211_SKB_CB(skb);
1435 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1436 ieee80211_get_tx_rates(vif, NULL, skb,
1437 info->control.rates,
1438 ARRAY_SIZE(info->control.rates));
1440 txrate = ieee80211_get_tx_rate(hw, info);
1442 mgmt = (struct ieee80211_mgmt *) skb->data;
1443 /* fake header transmission time */
1444 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1445 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1447 24 * 8 * 10 / txrate->bitrate);
1449 mac80211_hwsim_tx_frame(hw, skb,
1450 rcu_dereference(vif->chanctx_conf)->def.chan);
1452 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1453 ieee80211_csa_finish(vif);
1456 static enum hrtimer_restart
1457 mac80211_hwsim_beacon(struct hrtimer *timer)
1459 struct mac80211_hwsim_data *data =
1460 container_of(timer, struct mac80211_hwsim_data,
1461 beacon_timer.timer);
1462 struct ieee80211_hw *hw = data->hw;
1463 u64 bcn_int = data->beacon_int;
1469 ieee80211_iterate_active_interfaces_atomic(
1470 hw, IEEE80211_IFACE_ITER_NORMAL,
1471 mac80211_hwsim_beacon_tx, data);
1473 /* beacon at new TBTT + beacon interval */
1474 if (data->bcn_delta) {
1475 bcn_int -= data->bcn_delta;
1476 data->bcn_delta = 0;
1479 next_bcn = ktime_add(hrtimer_get_expires(timer),
1480 ns_to_ktime(bcn_int * 1000));
1481 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1483 return HRTIMER_NORESTART;
1486 static const char * const hwsim_chanwidths[] = {
1487 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1488 [NL80211_CHAN_WIDTH_20] = "ht20",
1489 [NL80211_CHAN_WIDTH_40] = "ht40",
1490 [NL80211_CHAN_WIDTH_80] = "vht80",
1491 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1492 [NL80211_CHAN_WIDTH_160] = "vht160",
1495 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1497 struct mac80211_hwsim_data *data = hw->priv;
1498 struct ieee80211_conf *conf = &hw->conf;
1499 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1500 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1501 [IEEE80211_SMPS_OFF] = "off",
1502 [IEEE80211_SMPS_STATIC] = "static",
1503 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1506 if (conf->chandef.chan)
1507 wiphy_debug(hw->wiphy,
1508 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1510 conf->chandef.chan->center_freq,
1511 conf->chandef.center_freq1,
1512 conf->chandef.center_freq2,
1513 hwsim_chanwidths[conf->chandef.width],
1514 !!(conf->flags & IEEE80211_CONF_IDLE),
1515 !!(conf->flags & IEEE80211_CONF_PS),
1516 smps_modes[conf->smps_mode]);
1518 wiphy_debug(hw->wiphy,
1519 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1521 !!(conf->flags & IEEE80211_CONF_IDLE),
1522 !!(conf->flags & IEEE80211_CONF_PS),
1523 smps_modes[conf->smps_mode]);
1525 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1527 data->channel = conf->chandef.chan;
1529 WARN_ON(data->channel && data->use_chanctx);
1531 data->power_level = conf->power_level;
1532 if (!data->started || !data->beacon_int)
1533 tasklet_hrtimer_cancel(&data->beacon_timer);
1534 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1535 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1536 u32 bcn_int = data->beacon_int;
1537 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1539 tasklet_hrtimer_start(&data->beacon_timer,
1540 ns_to_ktime(until_tbtt * 1000),
1548 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1549 unsigned int changed_flags,
1550 unsigned int *total_flags,u64 multicast)
1552 struct mac80211_hwsim_data *data = hw->priv;
1554 wiphy_debug(hw->wiphy, "%s\n", __func__);
1556 data->rx_filter = 0;
1557 if (*total_flags & FIF_PROMISC_IN_BSS)
1558 data->rx_filter |= FIF_PROMISC_IN_BSS;
1559 if (*total_flags & FIF_ALLMULTI)
1560 data->rx_filter |= FIF_ALLMULTI;
1562 *total_flags = data->rx_filter;
1565 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1566 struct ieee80211_vif *vif)
1568 unsigned int *count = data;
1569 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1575 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1576 struct ieee80211_vif *vif,
1577 struct ieee80211_bss_conf *info,
1580 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1581 struct mac80211_hwsim_data *data = hw->priv;
1583 hwsim_check_magic(vif);
1585 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1586 __func__, changed, vif->addr);
1588 if (changed & BSS_CHANGED_BSSID) {
1589 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1590 __func__, info->bssid);
1591 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1594 if (changed & BSS_CHANGED_ASSOC) {
1595 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1596 info->assoc, info->aid);
1597 vp->assoc = info->assoc;
1598 vp->aid = info->aid;
1601 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1602 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1603 info->enable_beacon, info->beacon_int);
1604 vp->bcn_en = info->enable_beacon;
1605 if (data->started &&
1606 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1607 info->enable_beacon) {
1608 u64 tsf, until_tbtt;
1610 data->beacon_int = info->beacon_int * 1024;
1611 tsf = mac80211_hwsim_get_tsf(hw, vif);
1612 bcn_int = data->beacon_int;
1613 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1614 tasklet_hrtimer_start(&data->beacon_timer,
1615 ns_to_ktime(until_tbtt * 1000),
1617 } else if (!info->enable_beacon) {
1618 unsigned int count = 0;
1619 ieee80211_iterate_active_interfaces_atomic(
1620 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1621 mac80211_hwsim_bcn_en_iter, &count);
1622 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1625 tasklet_hrtimer_cancel(&data->beacon_timer);
1626 data->beacon_int = 0;
1631 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1632 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1633 info->use_cts_prot);
1636 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1637 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1638 info->use_short_preamble);
1641 if (changed & BSS_CHANGED_ERP_SLOT) {
1642 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1645 if (changed & BSS_CHANGED_HT) {
1646 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1647 info->ht_operation_mode);
1650 if (changed & BSS_CHANGED_BASIC_RATES) {
1651 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1652 (unsigned long long) info->basic_rates);
1655 if (changed & BSS_CHANGED_TXPOWER)
1656 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1659 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1660 struct ieee80211_vif *vif,
1661 struct ieee80211_sta *sta)
1663 hwsim_check_magic(vif);
1664 hwsim_set_sta_magic(sta);
1669 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1670 struct ieee80211_vif *vif,
1671 struct ieee80211_sta *sta)
1673 hwsim_check_magic(vif);
1674 hwsim_clear_sta_magic(sta);
1679 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1680 struct ieee80211_vif *vif,
1681 enum sta_notify_cmd cmd,
1682 struct ieee80211_sta *sta)
1684 hwsim_check_magic(vif);
1687 case STA_NOTIFY_SLEEP:
1688 case STA_NOTIFY_AWAKE:
1689 /* TODO: make good use of these flags */
1692 WARN(1, "Invalid sta notify: %d\n", cmd);
1697 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1698 struct ieee80211_sta *sta,
1701 hwsim_check_sta_magic(sta);
1705 static int mac80211_hwsim_conf_tx(
1706 struct ieee80211_hw *hw,
1707 struct ieee80211_vif *vif, u16 queue,
1708 const struct ieee80211_tx_queue_params *params)
1710 wiphy_debug(hw->wiphy,
1711 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1713 params->txop, params->cw_min,
1714 params->cw_max, params->aifs);
1718 static int mac80211_hwsim_get_survey(
1719 struct ieee80211_hw *hw, int idx,
1720 struct survey_info *survey)
1722 struct ieee80211_conf *conf = &hw->conf;
1724 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1729 /* Current channel */
1730 survey->channel = conf->chandef.chan;
1733 * Magically conjured noise level --- this is only ok for simulated hardware.
1735 * A real driver which cannot determine the real channel noise MUST NOT
1736 * report any noise, especially not a magically conjured one :-)
1738 survey->filled = SURVEY_INFO_NOISE_DBM;
1739 survey->noise = -92;
1744 #ifdef CONFIG_NL80211_TESTMODE
1746 * This section contains example code for using netlink
1747 * attributes with the testmode command in nl80211.
1750 /* These enums need to be kept in sync with userspace */
1751 enum hwsim_testmode_attr {
1752 __HWSIM_TM_ATTR_INVALID = 0,
1753 HWSIM_TM_ATTR_CMD = 1,
1754 HWSIM_TM_ATTR_PS = 2,
1757 __HWSIM_TM_ATTR_AFTER_LAST,
1758 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1761 enum hwsim_testmode_cmd {
1762 HWSIM_TM_CMD_SET_PS = 0,
1763 HWSIM_TM_CMD_GET_PS = 1,
1764 HWSIM_TM_CMD_STOP_QUEUES = 2,
1765 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1768 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1769 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1770 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1773 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1774 struct ieee80211_vif *vif,
1775 void *data, int len)
1777 struct mac80211_hwsim_data *hwsim = hw->priv;
1778 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1779 struct sk_buff *skb;
1782 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1783 hwsim_testmode_policy);
1787 if (!tb[HWSIM_TM_ATTR_CMD])
1790 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1791 case HWSIM_TM_CMD_SET_PS:
1792 if (!tb[HWSIM_TM_ATTR_PS])
1794 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1795 return hwsim_fops_ps_write(hwsim, ps);
1796 case HWSIM_TM_CMD_GET_PS:
1797 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1798 nla_total_size(sizeof(u32)));
1801 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1802 goto nla_put_failure;
1803 return cfg80211_testmode_reply(skb);
1804 case HWSIM_TM_CMD_STOP_QUEUES:
1805 ieee80211_stop_queues(hw);
1807 case HWSIM_TM_CMD_WAKE_QUEUES:
1808 ieee80211_wake_queues(hw);
1820 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1821 struct ieee80211_vif *vif,
1822 enum ieee80211_ampdu_mlme_action action,
1823 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1827 case IEEE80211_AMPDU_TX_START:
1828 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1830 case IEEE80211_AMPDU_TX_STOP_CONT:
1831 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1832 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1833 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1835 case IEEE80211_AMPDU_TX_OPERATIONAL:
1837 case IEEE80211_AMPDU_RX_START:
1838 case IEEE80211_AMPDU_RX_STOP:
1847 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1848 struct ieee80211_vif *vif,
1849 u32 queues, bool drop)
1851 /* Not implemented, queues only on kernel side */
1854 static void hw_scan_work(struct work_struct *work)
1856 struct mac80211_hwsim_data *hwsim =
1857 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1858 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1861 mutex_lock(&hwsim->mutex);
1862 if (hwsim->scan_chan_idx >= req->n_channels) {
1863 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1864 ieee80211_scan_completed(hwsim->hw, false);
1865 hwsim->hw_scan_request = NULL;
1866 hwsim->hw_scan_vif = NULL;
1867 hwsim->tmp_chan = NULL;
1868 mutex_unlock(&hwsim->mutex);
1872 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1873 req->channels[hwsim->scan_chan_idx]->center_freq);
1875 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1876 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
1882 for (i = 0; i < req->n_ssids; i++) {
1883 struct sk_buff *probe;
1885 probe = ieee80211_probereq_get(hwsim->hw,
1888 req->ssids[i].ssid_len,
1894 memcpy(skb_put(probe, req->ie_len), req->ie,
1898 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1903 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1904 msecs_to_jiffies(dwell));
1905 hwsim->scan_chan_idx++;
1906 mutex_unlock(&hwsim->mutex);
1909 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1910 struct ieee80211_vif *vif,
1911 struct ieee80211_scan_request *hw_req)
1913 struct mac80211_hwsim_data *hwsim = hw->priv;
1914 struct cfg80211_scan_request *req = &hw_req->req;
1916 mutex_lock(&hwsim->mutex);
1917 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1918 mutex_unlock(&hwsim->mutex);
1921 hwsim->hw_scan_request = req;
1922 hwsim->hw_scan_vif = vif;
1923 hwsim->scan_chan_idx = 0;
1924 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
1925 get_random_mask_addr(hwsim->scan_addr,
1926 hw_req->req.mac_addr,
1927 hw_req->req.mac_addr_mask);
1929 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
1930 mutex_unlock(&hwsim->mutex);
1932 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1934 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1939 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1940 struct ieee80211_vif *vif)
1942 struct mac80211_hwsim_data *hwsim = hw->priv;
1944 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1946 cancel_delayed_work_sync(&hwsim->hw_scan);
1948 mutex_lock(&hwsim->mutex);
1949 ieee80211_scan_completed(hwsim->hw, true);
1950 hwsim->tmp_chan = NULL;
1951 hwsim->hw_scan_request = NULL;
1952 hwsim->hw_scan_vif = NULL;
1953 mutex_unlock(&hwsim->mutex);
1956 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
1957 struct ieee80211_vif *vif,
1960 struct mac80211_hwsim_data *hwsim = hw->priv;
1962 mutex_lock(&hwsim->mutex);
1964 if (hwsim->scanning) {
1965 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1969 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1971 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
1972 hwsim->scanning = true;
1975 mutex_unlock(&hwsim->mutex);
1978 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
1979 struct ieee80211_vif *vif)
1981 struct mac80211_hwsim_data *hwsim = hw->priv;
1983 mutex_lock(&hwsim->mutex);
1985 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1986 hwsim->scanning = false;
1987 eth_zero_addr(hwsim->scan_addr);
1989 mutex_unlock(&hwsim->mutex);
1992 static void hw_roc_done(struct work_struct *work)
1994 struct mac80211_hwsim_data *hwsim =
1995 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1997 mutex_lock(&hwsim->mutex);
1998 ieee80211_remain_on_channel_expired(hwsim->hw);
1999 hwsim->tmp_chan = NULL;
2000 mutex_unlock(&hwsim->mutex);
2002 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2005 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2006 struct ieee80211_vif *vif,
2007 struct ieee80211_channel *chan,
2009 enum ieee80211_roc_type type)
2011 struct mac80211_hwsim_data *hwsim = hw->priv;
2013 mutex_lock(&hwsim->mutex);
2014 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2015 mutex_unlock(&hwsim->mutex);
2019 hwsim->tmp_chan = chan;
2020 mutex_unlock(&hwsim->mutex);
2022 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2023 chan->center_freq, duration);
2025 ieee80211_ready_on_channel(hw);
2027 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
2028 msecs_to_jiffies(duration));
2032 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2034 struct mac80211_hwsim_data *hwsim = hw->priv;
2036 cancel_delayed_work_sync(&hwsim->roc_done);
2038 mutex_lock(&hwsim->mutex);
2039 hwsim->tmp_chan = NULL;
2040 mutex_unlock(&hwsim->mutex);
2042 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2047 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2048 struct ieee80211_chanctx_conf *ctx)
2050 hwsim_set_chanctx_magic(ctx);
2051 wiphy_debug(hw->wiphy,
2052 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2053 ctx->def.chan->center_freq, ctx->def.width,
2054 ctx->def.center_freq1, ctx->def.center_freq2);
2058 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2059 struct ieee80211_chanctx_conf *ctx)
2061 wiphy_debug(hw->wiphy,
2062 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2063 ctx->def.chan->center_freq, ctx->def.width,
2064 ctx->def.center_freq1, ctx->def.center_freq2);
2065 hwsim_check_chanctx_magic(ctx);
2066 hwsim_clear_chanctx_magic(ctx);
2069 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2070 struct ieee80211_chanctx_conf *ctx,
2073 hwsim_check_chanctx_magic(ctx);
2074 wiphy_debug(hw->wiphy,
2075 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2076 ctx->def.chan->center_freq, ctx->def.width,
2077 ctx->def.center_freq1, ctx->def.center_freq2);
2080 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2081 struct ieee80211_vif *vif,
2082 struct ieee80211_chanctx_conf *ctx)
2084 hwsim_check_magic(vif);
2085 hwsim_check_chanctx_magic(ctx);
2090 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2091 struct ieee80211_vif *vif,
2092 struct ieee80211_chanctx_conf *ctx)
2094 hwsim_check_magic(vif);
2095 hwsim_check_chanctx_magic(ctx);
2098 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2110 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2112 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2113 struct ieee80211_vif *vif,
2116 if (sset == ETH_SS_STATS)
2117 memcpy(data, *mac80211_hwsim_gstrings_stats,
2118 sizeof(mac80211_hwsim_gstrings_stats));
2121 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2122 struct ieee80211_vif *vif, int sset)
2124 if (sset == ETH_SS_STATS)
2125 return MAC80211_HWSIM_SSTATS_LEN;
2129 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2130 struct ieee80211_vif *vif,
2131 struct ethtool_stats *stats, u64 *data)
2133 struct mac80211_hwsim_data *ar = hw->priv;
2136 data[i++] = ar->tx_pkts;
2137 data[i++] = ar->tx_bytes;
2138 data[i++] = ar->rx_pkts;
2139 data[i++] = ar->rx_bytes;
2140 data[i++] = ar->tx_dropped;
2141 data[i++] = ar->tx_failed;
2143 data[i++] = ar->group;
2144 data[i++] = ar->power_level;
2146 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2149 static const struct ieee80211_ops mac80211_hwsim_ops = {
2150 .tx = mac80211_hwsim_tx,
2151 .start = mac80211_hwsim_start,
2152 .stop = mac80211_hwsim_stop,
2153 .add_interface = mac80211_hwsim_add_interface,
2154 .change_interface = mac80211_hwsim_change_interface,
2155 .remove_interface = mac80211_hwsim_remove_interface,
2156 .config = mac80211_hwsim_config,
2157 .configure_filter = mac80211_hwsim_configure_filter,
2158 .bss_info_changed = mac80211_hwsim_bss_info_changed,
2159 .sta_add = mac80211_hwsim_sta_add,
2160 .sta_remove = mac80211_hwsim_sta_remove,
2161 .sta_notify = mac80211_hwsim_sta_notify,
2162 .set_tim = mac80211_hwsim_set_tim,
2163 .conf_tx = mac80211_hwsim_conf_tx,
2164 .get_survey = mac80211_hwsim_get_survey,
2165 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
2166 .ampdu_action = mac80211_hwsim_ampdu_action,
2167 .sw_scan_start = mac80211_hwsim_sw_scan,
2168 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2169 .flush = mac80211_hwsim_flush,
2170 .get_tsf = mac80211_hwsim_get_tsf,
2171 .set_tsf = mac80211_hwsim_set_tsf,
2172 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2173 .get_et_stats = mac80211_hwsim_get_et_stats,
2174 .get_et_strings = mac80211_hwsim_get_et_strings,
2177 static struct ieee80211_ops mac80211_hwsim_mchan_ops;
2179 struct hwsim_new_radio_params {
2180 unsigned int channels;
2181 const char *reg_alpha2;
2182 const struct ieee80211_regdomain *regd;
2186 bool destroy_on_close;
2191 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2192 struct genl_info *info)
2195 genl_notify(&hwsim_genl_family, mcast_skb,
2196 genl_info_net(info), info->snd_portid,
2197 HWSIM_MCGRP_CONFIG, info->nlhdr, GFP_KERNEL);
2199 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2200 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2203 static int append_radio_msg(struct sk_buff *skb, int id,
2204 struct hwsim_new_radio_params *param)
2208 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2212 if (param->channels) {
2213 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2218 if (param->reg_alpha2) {
2219 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2228 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2229 if (hwsim_world_regdom_custom[i] != param->regd)
2232 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2239 if (param->reg_strict) {
2240 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2245 if (param->p2p_device) {
2246 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2251 if (param->use_chanctx) {
2252 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2257 if (param->hwname) {
2258 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2259 strlen(param->hwname), param->hwname);
2267 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2268 struct hwsim_new_radio_params *param)
2270 struct sk_buff *mcast_skb;
2273 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2277 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2278 HWSIM_CMD_NEW_RADIO);
2282 if (append_radio_msg(mcast_skb, id, param) < 0)
2285 genlmsg_end(mcast_skb, data);
2287 hwsim_mcast_config_msg(mcast_skb, info);
2291 genlmsg_cancel(mcast_skb, data);
2292 nlmsg_free(mcast_skb);
2295 static int mac80211_hwsim_new_radio(struct genl_info *info,
2296 struct hwsim_new_radio_params *param)
2300 struct mac80211_hwsim_data *data;
2301 struct ieee80211_hw *hw;
2302 enum ieee80211_band band;
2303 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2306 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2309 spin_lock_bh(&hwsim_radio_lock);
2310 idx = hwsim_radio_idx++;
2311 spin_unlock_bh(&hwsim_radio_lock);
2313 if (param->use_chanctx)
2314 ops = &mac80211_hwsim_mchan_ops;
2315 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2317 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2324 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2325 if (IS_ERR(data->dev)) {
2327 "mac80211_hwsim: device_create failed (%ld)\n",
2328 PTR_ERR(data->dev));
2330 goto failed_drvdata;
2332 data->dev->driver = &mac80211_hwsim_driver.driver;
2333 err = device_bind_driver(data->dev);
2335 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2340 skb_queue_head_init(&data->pending);
2342 SET_IEEE80211_DEV(hw, data->dev);
2343 eth_zero_addr(addr);
2347 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2348 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2349 data->addresses[1].addr[0] |= 0x40;
2350 hw->wiphy->n_addresses = 2;
2351 hw->wiphy->addresses = data->addresses;
2353 data->channels = param->channels;
2354 data->use_chanctx = param->use_chanctx;
2356 data->destroy_on_close = param->destroy_on_close;
2358 data->portid = info->snd_portid;
2360 if (data->use_chanctx) {
2361 hw->wiphy->max_scan_ssids = 255;
2362 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2363 hw->wiphy->max_remain_on_channel_duration = 1000;
2364 /* For channels > 1 DFS is not allowed */
2365 hw->wiphy->n_iface_combinations = 1;
2366 hw->wiphy->iface_combinations = &data->if_combination;
2367 if (param->p2p_device)
2368 data->if_combination = hwsim_if_comb_p2p_dev[0];
2370 data->if_combination = hwsim_if_comb[0];
2371 data->if_combination.num_different_channels = data->channels;
2372 } else if (param->p2p_device) {
2373 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2374 hw->wiphy->n_iface_combinations =
2375 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
2377 hw->wiphy->iface_combinations = hwsim_if_comb;
2378 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2381 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2382 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2385 hw->offchannel_tx_hw_queue = 4;
2386 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2387 BIT(NL80211_IFTYPE_AP) |
2388 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2389 BIT(NL80211_IFTYPE_P2P_GO) |
2390 BIT(NL80211_IFTYPE_ADHOC) |
2391 BIT(NL80211_IFTYPE_MESH_POINT);
2393 if (param->p2p_device)
2394 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
2396 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2397 IEEE80211_HW_SIGNAL_DBM |
2398 IEEE80211_HW_AMPDU_AGGREGATION |
2399 IEEE80211_HW_WANT_MONITOR_VIF |
2400 IEEE80211_HW_QUEUE_CONTROL |
2401 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2402 IEEE80211_HW_CHANCTX_STA_CSA;
2404 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2406 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2407 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2408 WIPHY_FLAG_AP_UAPSD |
2409 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2410 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2411 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2412 NL80211_FEATURE_STATIC_SMPS |
2413 NL80211_FEATURE_DYNAMIC_SMPS |
2414 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2416 /* ask mac80211 to reserve space for magic */
2417 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2418 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2419 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2421 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2422 sizeof(hwsim_channels_2ghz));
2423 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2424 sizeof(hwsim_channels_5ghz));
2425 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2427 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2428 struct ieee80211_supported_band *sband = &data->bands[band];
2430 case IEEE80211_BAND_2GHZ:
2431 sband->channels = data->channels_2ghz;
2432 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2433 sband->bitrates = data->rates;
2434 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2436 case IEEE80211_BAND_5GHZ:
2437 sband->channels = data->channels_5ghz;
2438 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2439 sband->bitrates = data->rates + 4;
2440 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2446 sband->ht_cap.ht_supported = true;
2447 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2448 IEEE80211_HT_CAP_GRN_FLD |
2449 IEEE80211_HT_CAP_SGI_20 |
2450 IEEE80211_HT_CAP_SGI_40 |
2451 IEEE80211_HT_CAP_DSSSCCK40;
2452 sband->ht_cap.ampdu_factor = 0x3;
2453 sband->ht_cap.ampdu_density = 0x6;
2454 memset(&sband->ht_cap.mcs, 0,
2455 sizeof(sband->ht_cap.mcs));
2456 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2457 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2458 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2460 hw->wiphy->bands[band] = sband;
2462 sband->vht_cap.vht_supported = true;
2463 sband->vht_cap.cap =
2464 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2465 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2466 IEEE80211_VHT_CAP_RXLDPC |
2467 IEEE80211_VHT_CAP_SHORT_GI_80 |
2468 IEEE80211_VHT_CAP_SHORT_GI_160 |
2469 IEEE80211_VHT_CAP_TXSTBC |
2470 IEEE80211_VHT_CAP_RXSTBC_1 |
2471 IEEE80211_VHT_CAP_RXSTBC_2 |
2472 IEEE80211_VHT_CAP_RXSTBC_3 |
2473 IEEE80211_VHT_CAP_RXSTBC_4 |
2474 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2475 sband->vht_cap.vht_mcs.rx_mcs_map =
2476 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2477 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2478 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2479 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2480 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2481 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2482 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2483 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2484 sband->vht_cap.vht_mcs.tx_mcs_map =
2485 sband->vht_cap.vht_mcs.rx_mcs_map;
2488 /* By default all radios belong to the first group */
2490 mutex_init(&data->mutex);
2492 /* Enable frame retransmissions for lossy channels */
2494 hw->max_rate_tries = 11;
2496 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2497 hw->wiphy->n_vendor_commands =
2498 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2499 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2500 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2502 if (param->reg_strict)
2503 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2505 data->regd = param->regd;
2506 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2507 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
2508 /* give the regulatory workqueue a chance to run */
2509 schedule_timeout_interruptible(1);
2513 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2515 err = ieee80211_register_hw(hw);
2517 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2522 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2524 if (param->reg_alpha2) {
2525 data->alpha2[0] = param->reg_alpha2[0];
2526 data->alpha2[1] = param->reg_alpha2[1];
2527 regulatory_hint(hw->wiphy, param->reg_alpha2);
2530 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2531 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2532 debugfs_create_file("group", 0666, data->debugfs, data,
2534 if (!data->use_chanctx)
2535 debugfs_create_file("dfs_simulate_radar", 0222,
2537 data, &hwsim_simulate_radar);
2539 tasklet_hrtimer_init(&data->beacon_timer,
2540 mac80211_hwsim_beacon,
2541 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
2543 spin_lock_bh(&hwsim_radio_lock);
2544 list_add_tail(&data->list, &hwsim_radios);
2545 spin_unlock_bh(&hwsim_radio_lock);
2548 hwsim_mcast_new_radio(idx, info, param);
2553 device_release_driver(data->dev);
2555 device_unregister(data->dev);
2557 ieee80211_free_hw(hw);
2562 static void hwsim_mcast_del_radio(int id, const char *hwname,
2563 struct genl_info *info)
2565 struct sk_buff *skb;
2569 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2573 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2574 HWSIM_CMD_DEL_RADIO);
2578 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2582 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2587 genlmsg_end(skb, data);
2589 hwsim_mcast_config_msg(skb, info);
2597 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2599 struct genl_info *info)
2601 hwsim_mcast_del_radio(data->idx, hwname, info);
2602 debugfs_remove_recursive(data->debugfs);
2603 ieee80211_unregister_hw(data->hw);
2604 device_release_driver(data->dev);
2605 device_unregister(data->dev);
2606 ieee80211_free_hw(data->hw);
2609 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2610 struct mac80211_hwsim_data *data,
2611 u32 portid, u32 seq,
2612 struct netlink_callback *cb, int flags)
2615 struct hwsim_new_radio_params param = { };
2616 int res = -EMSGSIZE;
2618 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2619 HWSIM_CMD_GET_RADIO);
2624 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2626 if (data->alpha2[0] && data->alpha2[1])
2627 param.reg_alpha2 = data->alpha2;
2629 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2630 REGULATORY_STRICT_REG);
2631 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2632 BIT(NL80211_IFTYPE_P2P_DEVICE));
2633 param.use_chanctx = data->use_chanctx;
2634 param.regd = data->regd;
2635 param.channels = data->channels;
2636 param.hwname = wiphy_name(data->hw->wiphy);
2638 res = append_radio_msg(skb, data->idx, ¶m);
2642 genlmsg_end(skb, hdr);
2646 genlmsg_cancel(skb, hdr);
2650 static void mac80211_hwsim_free(void)
2652 struct mac80211_hwsim_data *data;
2654 spin_lock_bh(&hwsim_radio_lock);
2655 while ((data = list_first_entry_or_null(&hwsim_radios,
2656 struct mac80211_hwsim_data,
2658 list_del(&data->list);
2659 spin_unlock_bh(&hwsim_radio_lock);
2660 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2662 spin_lock_bh(&hwsim_radio_lock);
2664 spin_unlock_bh(&hwsim_radio_lock);
2665 class_destroy(hwsim_class);
2668 static const struct net_device_ops hwsim_netdev_ops = {
2669 .ndo_start_xmit = hwsim_mon_xmit,
2670 .ndo_change_mtu = eth_change_mtu,
2671 .ndo_set_mac_address = eth_mac_addr,
2672 .ndo_validate_addr = eth_validate_addr,
2675 static void hwsim_mon_setup(struct net_device *dev)
2677 dev->netdev_ops = &hwsim_netdev_ops;
2678 dev->destructor = free_netdev;
2680 dev->tx_queue_len = 0;
2681 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2682 eth_zero_addr(dev->dev_addr);
2683 dev->dev_addr[0] = 0x12;
2686 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
2688 struct mac80211_hwsim_data *data;
2689 bool _found = false;
2691 spin_lock_bh(&hwsim_radio_lock);
2692 list_for_each_entry(data, &hwsim_radios, list) {
2693 if (mac80211_hwsim_addr_match(data, addr)) {
2698 spin_unlock_bh(&hwsim_radio_lock);
2706 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2707 struct genl_info *info)
2710 struct ieee80211_hdr *hdr;
2711 struct mac80211_hwsim_data *data2;
2712 struct ieee80211_tx_info *txi;
2713 struct hwsim_tx_rate *tx_attempts;
2714 unsigned long ret_skb_ptr;
2715 struct sk_buff *skb, *tmp;
2717 unsigned int hwsim_flags;
2721 if (info->snd_portid != wmediumd_portid)
2724 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
2725 !info->attrs[HWSIM_ATTR_FLAGS] ||
2726 !info->attrs[HWSIM_ATTR_COOKIE] ||
2727 !info->attrs[HWSIM_ATTR_TX_INFO])
2730 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
2731 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
2732 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
2734 data2 = get_hwsim_data_ref_from_addr(src);
2738 /* look for the skb matching the cookie passed back from user */
2739 skb_queue_walk_safe(&data2->pending, skb, tmp) {
2740 if ((unsigned long)skb == ret_skb_ptr) {
2741 skb_unlink(skb, &data2->pending);
2751 /* Tx info received because the frame was broadcasted on user space,
2752 so we get all the necessary info: tx attempts and skb control buff */
2754 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2755 info->attrs[HWSIM_ATTR_TX_INFO]);
2757 /* now send back TX status */
2758 txi = IEEE80211_SKB_CB(skb);
2760 ieee80211_tx_info_clear_status(txi);
2762 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2763 txi->status.rates[i].idx = tx_attempts[i].idx;
2764 txi->status.rates[i].count = tx_attempts[i].count;
2765 /*txi->status.rates[i].flags = 0;*/
2768 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2770 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2771 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2772 if (skb->len >= 16) {
2773 hdr = (struct ieee80211_hdr *) skb->data;
2774 mac80211_hwsim_monitor_ack(data2->channel,
2777 txi->flags |= IEEE80211_TX_STAT_ACK;
2779 ieee80211_tx_status_irqsafe(data2->hw, skb);
2786 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2787 struct genl_info *info)
2789 struct mac80211_hwsim_data *data2;
2790 struct ieee80211_rx_status rx_status;
2794 struct sk_buff *skb = NULL;
2796 if (info->snd_portid != wmediumd_portid)
2799 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
2800 !info->attrs[HWSIM_ATTR_FRAME] ||
2801 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2802 !info->attrs[HWSIM_ATTR_SIGNAL])
2805 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2806 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2807 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2809 /* Allocate new skb here */
2810 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2814 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
2818 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
2820 data2 = get_hwsim_data_ref_from_addr(dst);
2824 /* check if radio is configured properly */
2826 if (data2->idle || !data2->started)
2829 /* A frame is received from user space */
2830 memset(&rx_status, 0, sizeof(rx_status));
2831 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2834 rx_status.freq = data2->channel->center_freq;
2835 rx_status.band = data2->channel->band;
2836 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2837 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2839 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2841 data2->rx_bytes += skb->len;
2842 ieee80211_rx_irqsafe(data2->hw, skb);
2846 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2852 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2853 struct genl_info *info)
2855 struct mac80211_hwsim_data *data;
2858 spin_lock_bh(&hwsim_radio_lock);
2859 list_for_each_entry(data, &hwsim_radios, list)
2860 chans = max(chans, data->channels);
2861 spin_unlock_bh(&hwsim_radio_lock);
2863 /* In the future we should revise the userspace API and allow it
2864 * to set a flag that it does support multi-channel, then we can
2865 * let this pass conditionally on the flag.
2866 * For current userspace, prohibit it since it won't work right.
2871 if (wmediumd_portid)
2874 wmediumd_portid = info->snd_portid;
2876 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2877 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2882 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
2884 struct hwsim_new_radio_params param = { 0 };
2886 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
2887 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
2888 param.channels = channels;
2889 param.destroy_on_close =
2890 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
2892 if (info->attrs[HWSIM_ATTR_CHANNELS])
2893 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
2895 if (info->attrs[HWSIM_ATTR_NO_VIF])
2896 param.no_vif = true;
2898 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2899 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2901 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
2902 param.use_chanctx = true;
2904 param.use_chanctx = (param.channels > 1);
2906 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
2908 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
2910 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2911 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2913 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2915 param.regd = hwsim_world_regdom_custom[idx];
2918 return mac80211_hwsim_new_radio(info, ¶m);
2921 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
2923 struct mac80211_hwsim_data *data;
2925 const char *hwname = NULL;
2927 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2928 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2929 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2930 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2934 spin_lock_bh(&hwsim_radio_lock);
2935 list_for_each_entry(data, &hwsim_radios, list) {
2937 if (data->idx != idx)
2940 if (strcmp(hwname, wiphy_name(data->hw->wiphy)))
2944 list_del(&data->list);
2945 spin_unlock_bh(&hwsim_radio_lock);
2946 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2950 spin_unlock_bh(&hwsim_radio_lock);
2955 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
2957 struct mac80211_hwsim_data *data;
2958 struct sk_buff *skb;
2959 int idx, res = -ENODEV;
2961 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
2963 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2965 spin_lock_bh(&hwsim_radio_lock);
2966 list_for_each_entry(data, &hwsim_radios, list) {
2967 if (data->idx != idx)
2970 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2976 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
2977 info->snd_seq, NULL, 0);
2983 genlmsg_reply(skb, info);
2988 spin_unlock_bh(&hwsim_radio_lock);
2993 static int hwsim_dump_radio_nl(struct sk_buff *skb,
2994 struct netlink_callback *cb)
2996 int idx = cb->args[0];
2997 struct mac80211_hwsim_data *data = NULL;
3000 spin_lock_bh(&hwsim_radio_lock);
3002 if (idx == hwsim_radio_idx)
3005 list_for_each_entry(data, &hwsim_radios, list) {
3006 if (data->idx < idx)
3009 res = mac80211_hwsim_get_radio(skb, data,
3010 NETLINK_CB(cb->skb).portid,
3011 cb->nlh->nlmsg_seq, cb,
3016 idx = data->idx + 1;
3022 spin_unlock_bh(&hwsim_radio_lock);
3026 /* Generic Netlink operations array */
3027 static const struct genl_ops hwsim_ops[] = {
3029 .cmd = HWSIM_CMD_REGISTER,
3030 .policy = hwsim_genl_policy,
3031 .doit = hwsim_register_received_nl,
3032 .flags = GENL_ADMIN_PERM,
3035 .cmd = HWSIM_CMD_FRAME,
3036 .policy = hwsim_genl_policy,
3037 .doit = hwsim_cloned_frame_received_nl,
3040 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3041 .policy = hwsim_genl_policy,
3042 .doit = hwsim_tx_info_frame_received_nl,
3045 .cmd = HWSIM_CMD_NEW_RADIO,
3046 .policy = hwsim_genl_policy,
3047 .doit = hwsim_new_radio_nl,
3048 .flags = GENL_ADMIN_PERM,
3051 .cmd = HWSIM_CMD_DEL_RADIO,
3052 .policy = hwsim_genl_policy,
3053 .doit = hwsim_del_radio_nl,
3054 .flags = GENL_ADMIN_PERM,
3057 .cmd = HWSIM_CMD_GET_RADIO,
3058 .policy = hwsim_genl_policy,
3059 .doit = hwsim_get_radio_nl,
3060 .dumpit = hwsim_dump_radio_nl,
3064 static void destroy_radio(struct work_struct *work)
3066 struct mac80211_hwsim_data *data =
3067 container_of(work, struct mac80211_hwsim_data, destroy_work);
3069 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
3072 static void remove_user_radios(u32 portid)
3074 struct mac80211_hwsim_data *entry, *tmp;
3076 spin_lock_bh(&hwsim_radio_lock);
3077 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3078 if (entry->destroy_on_close && entry->portid == portid) {
3079 list_del(&entry->list);
3080 INIT_WORK(&entry->destroy_work, destroy_radio);
3081 schedule_work(&entry->destroy_work);
3084 spin_unlock_bh(&hwsim_radio_lock);
3087 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3088 unsigned long state,
3091 struct netlink_notify *notify = _notify;
3093 if (state != NETLINK_URELEASE)
3096 remove_user_radios(notify->portid);
3098 if (notify->portid == wmediumd_portid) {
3099 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3100 " socket, switching to perfect channel medium\n");
3101 wmediumd_portid = 0;
3107 static struct notifier_block hwsim_netlink_notifier = {
3108 .notifier_call = mac80211_hwsim_netlink_notify,
3111 static int hwsim_init_netlink(void)
3115 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3117 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
3123 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3130 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
3134 static void hwsim_exit_netlink(void)
3136 /* unregister the notifier */
3137 netlink_unregister_notifier(&hwsim_netlink_notifier);
3138 /* unregister the family */
3139 genl_unregister_family(&hwsim_genl_family);
3142 static int __init init_mac80211_hwsim(void)
3146 if (radios < 0 || radios > 100)
3152 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
3153 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
3154 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
3155 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
3156 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
3157 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
3158 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
3159 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
3160 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
3161 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
3162 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
3163 mac80211_hwsim_assign_vif_chanctx;
3164 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
3165 mac80211_hwsim_unassign_vif_chanctx;
3167 spin_lock_init(&hwsim_radio_lock);
3168 INIT_LIST_HEAD(&hwsim_radios);
3170 err = platform_driver_register(&mac80211_hwsim_driver);
3174 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3175 if (IS_ERR(hwsim_class)) {
3176 err = PTR_ERR(hwsim_class);
3177 goto out_unregister_driver;
3180 err = hwsim_init_netlink();
3182 goto out_unregister_driver;
3184 for (i = 0; i < radios; i++) {
3185 struct hwsim_new_radio_params param = { 0 };
3187 param.channels = channels;
3190 case HWSIM_REGTEST_DIFF_COUNTRY:
3191 if (i < ARRAY_SIZE(hwsim_alpha2s))
3192 param.reg_alpha2 = hwsim_alpha2s[i];
3194 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3196 param.reg_alpha2 = hwsim_alpha2s[0];
3198 case HWSIM_REGTEST_STRICT_ALL:
3199 param.reg_strict = true;
3200 case HWSIM_REGTEST_DRIVER_REG_ALL:
3201 param.reg_alpha2 = hwsim_alpha2s[0];
3203 case HWSIM_REGTEST_WORLD_ROAM:
3205 param.regd = &hwsim_world_regdom_custom_01;
3207 case HWSIM_REGTEST_CUSTOM_WORLD:
3208 param.regd = &hwsim_world_regdom_custom_01;
3210 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3212 param.regd = &hwsim_world_regdom_custom_01;
3214 param.regd = &hwsim_world_regdom_custom_02;
3216 case HWSIM_REGTEST_STRICT_FOLLOW:
3218 param.reg_strict = true;
3219 param.reg_alpha2 = hwsim_alpha2s[0];
3222 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
3224 param.reg_strict = true;
3225 param.reg_alpha2 = hwsim_alpha2s[0];
3226 } else if (i == 1) {
3227 param.reg_alpha2 = hwsim_alpha2s[1];
3230 case HWSIM_REGTEST_ALL:
3233 param.regd = &hwsim_world_regdom_custom_01;
3236 param.regd = &hwsim_world_regdom_custom_02;
3239 param.reg_alpha2 = hwsim_alpha2s[0];
3242 param.reg_alpha2 = hwsim_alpha2s[1];
3245 param.reg_strict = true;
3246 param.reg_alpha2 = hwsim_alpha2s[2];
3254 param.p2p_device = support_p2p_device;
3255 param.use_chanctx = channels > 1;
3257 err = mac80211_hwsim_new_radio(NULL, ¶m);
3259 goto out_free_radios;
3262 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3264 if (hwsim_mon == NULL) {
3266 goto out_free_radios;
3270 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3273 goto out_free_radios;
3276 err = register_netdevice(hwsim_mon);
3286 free_netdev(hwsim_mon);
3288 mac80211_hwsim_free();
3289 out_unregister_driver:
3290 platform_driver_unregister(&mac80211_hwsim_driver);
3293 module_init(init_mac80211_hwsim);
3295 static void __exit exit_mac80211_hwsim(void)
3297 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
3299 hwsim_exit_netlink();
3301 mac80211_hwsim_free();
3302 unregister_netdev(hwsim_mon);
3303 platform_driver_unregister(&mac80211_hwsim_driver);
3305 module_exit(exit_mac80211_hwsim);