2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/platform_device.h>
29 #include <linux/debugfs.h>
30 #include <linux/module.h>
31 #include <linux/ktime.h>
32 #include <net/genetlink.h>
33 #include <net/net_namespace.h>
34 #include <net/netns/generic.h>
35 #include "mac80211_hwsim.h"
37 #define WARN_QUEUE 100
40 MODULE_AUTHOR("Jouni Malinen");
41 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
42 MODULE_LICENSE("GPL");
44 static int radios = 2;
45 module_param(radios, int, 0444);
46 MODULE_PARM_DESC(radios, "Number of simulated radios");
48 static int channels = 1;
49 module_param(channels, int, 0444);
50 MODULE_PARM_DESC(channels, "Number of concurrent channels");
52 static bool paged_rx = false;
53 module_param(paged_rx, bool, 0644);
54 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
56 static bool rctbl = false;
57 module_param(rctbl, bool, 0444);
58 MODULE_PARM_DESC(rctbl, "Handle rate control table");
60 static bool support_p2p_device = true;
61 module_param(support_p2p_device, bool, 0444);
62 MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
65 * enum hwsim_regtest - the type of regulatory tests we offer
67 * These are the different values you can use for the regtest
68 * module parameter. This is useful to help test world roaming
69 * and the driver regulatory_hint() call and combinations of these.
70 * If you want to do specific alpha2 regulatory domain tests simply
71 * use the userspace regulatory request as that will be respected as
72 * well without the need of this module parameter. This is designed
73 * only for testing the driver regulatory request, world roaming
74 * and all possible combinations.
76 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
77 * this is the default value.
78 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
79 * hint, only one driver regulatory hint will be sent as such the
80 * secondary radios are expected to follow.
81 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
82 * request with all radios reporting the same regulatory domain.
83 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
84 * different regulatory domains requests. Expected behaviour is for
85 * an intersection to occur but each device will still use their
86 * respective regulatory requested domains. Subsequent radios will
87 * use the resulting intersection.
88 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
89 * this by using a custom beacon-capable regulatory domain for the first
90 * radio. All other device world roam.
91 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
92 * domain requests. All radios will adhere to this custom world regulatory
94 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
95 * domain requests. The first radio will adhere to the first custom world
96 * regulatory domain, the second one to the second custom world regulatory
97 * domain. All other devices will world roam.
98 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
99 * settings, only the first radio will send a regulatory domain request
100 * and use strict settings. The rest of the radios are expected to follow.
101 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
102 * settings. All radios will adhere to this.
103 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
104 * domain settings, combined with secondary driver regulatory domain
105 * settings. The first radio will get a strict regulatory domain setting
106 * using the first driver regulatory request and the second radio will use
107 * non-strict settings using the second driver regulatory request. All
108 * other devices should follow the intersection created between the
110 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
111 * at least 6 radios for a complete test. We will test in this order:
112 * 1 - driver custom world regulatory domain
113 * 2 - second custom world regulatory domain
114 * 3 - first driver regulatory domain request
115 * 4 - second driver regulatory domain request
116 * 5 - strict regulatory domain settings using the third driver regulatory
118 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
119 * regulatory requests.
122 HWSIM_REGTEST_DISABLED = 0,
123 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
124 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
125 HWSIM_REGTEST_DIFF_COUNTRY = 3,
126 HWSIM_REGTEST_WORLD_ROAM = 4,
127 HWSIM_REGTEST_CUSTOM_WORLD = 5,
128 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
129 HWSIM_REGTEST_STRICT_FOLLOW = 7,
130 HWSIM_REGTEST_STRICT_ALL = 8,
131 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
132 HWSIM_REGTEST_ALL = 10,
135 /* Set to one of the HWSIM_REGTEST_* values above */
136 static int regtest = HWSIM_REGTEST_DISABLED;
137 module_param(regtest, int, 0444);
138 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
140 static const char *hwsim_alpha2s[] = {
149 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
153 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
154 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
155 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
156 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
160 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
164 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
165 REG_RULE(5725-10, 5850+10, 40, 0, 30,
170 static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
171 &hwsim_world_regdom_custom_01,
172 &hwsim_world_regdom_custom_02,
175 struct hwsim_vif_priv {
183 #define HWSIM_VIF_MAGIC 0x69537748
185 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
188 WARN(vp->magic != HWSIM_VIF_MAGIC,
189 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
190 vif, vp->magic, vif->addr, vif->type, vif->p2p);
193 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
196 vp->magic = HWSIM_VIF_MAGIC;
199 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
201 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
205 struct hwsim_sta_priv {
209 #define HWSIM_STA_MAGIC 0x6d537749
211 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
213 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
214 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
217 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
219 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
220 sp->magic = HWSIM_STA_MAGIC;
223 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
225 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
229 struct hwsim_chanctx_priv {
233 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
235 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
237 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
241 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
243 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
244 cp->magic = HWSIM_CHANCTX_MAGIC;
247 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
249 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
253 static unsigned int hwsim_net_id;
255 static int hwsim_netgroup;
262 static inline int hwsim_net_get_netgroup(struct net *net)
264 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
266 return hwsim_net->netgroup;
269 static inline void hwsim_net_set_netgroup(struct net *net)
271 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
273 hwsim_net->netgroup = hwsim_netgroup++;
276 static inline u32 hwsim_net_get_wmediumd(struct net *net)
278 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
280 return hwsim_net->wmediumd;
283 static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
285 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
287 hwsim_net->wmediumd = portid;
290 static struct class *hwsim_class;
292 static struct net_device *hwsim_mon; /* global monitor netdev */
294 #define CHAN2G(_freq) { \
295 .band = NL80211_BAND_2GHZ, \
296 .center_freq = (_freq), \
297 .hw_value = (_freq), \
301 #define CHAN5G(_freq) { \
302 .band = NL80211_BAND_5GHZ, \
303 .center_freq = (_freq), \
304 .hw_value = (_freq), \
308 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
309 CHAN2G(2412), /* Channel 1 */
310 CHAN2G(2417), /* Channel 2 */
311 CHAN2G(2422), /* Channel 3 */
312 CHAN2G(2427), /* Channel 4 */
313 CHAN2G(2432), /* Channel 5 */
314 CHAN2G(2437), /* Channel 6 */
315 CHAN2G(2442), /* Channel 7 */
316 CHAN2G(2447), /* Channel 8 */
317 CHAN2G(2452), /* Channel 9 */
318 CHAN2G(2457), /* Channel 10 */
319 CHAN2G(2462), /* Channel 11 */
320 CHAN2G(2467), /* Channel 12 */
321 CHAN2G(2472), /* Channel 13 */
322 CHAN2G(2484), /* Channel 14 */
325 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
326 CHAN5G(5180), /* Channel 36 */
327 CHAN5G(5200), /* Channel 40 */
328 CHAN5G(5220), /* Channel 44 */
329 CHAN5G(5240), /* Channel 48 */
331 CHAN5G(5260), /* Channel 52 */
332 CHAN5G(5280), /* Channel 56 */
333 CHAN5G(5300), /* Channel 60 */
334 CHAN5G(5320), /* Channel 64 */
336 CHAN5G(5500), /* Channel 100 */
337 CHAN5G(5520), /* Channel 104 */
338 CHAN5G(5540), /* Channel 108 */
339 CHAN5G(5560), /* Channel 112 */
340 CHAN5G(5580), /* Channel 116 */
341 CHAN5G(5600), /* Channel 120 */
342 CHAN5G(5620), /* Channel 124 */
343 CHAN5G(5640), /* Channel 128 */
344 CHAN5G(5660), /* Channel 132 */
345 CHAN5G(5680), /* Channel 136 */
346 CHAN5G(5700), /* Channel 140 */
348 CHAN5G(5745), /* Channel 149 */
349 CHAN5G(5765), /* Channel 153 */
350 CHAN5G(5785), /* Channel 157 */
351 CHAN5G(5805), /* Channel 161 */
352 CHAN5G(5825), /* Channel 165 */
353 CHAN5G(5845), /* Channel 169 */
356 static const struct ieee80211_rate hwsim_rates[] = {
358 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
359 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
371 #define OUI_QCA 0x001374
372 #define QCA_NL80211_SUBCMD_TEST 1
373 enum qca_nl80211_vendor_subcmds {
374 QCA_WLAN_VENDOR_ATTR_TEST = 8,
375 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
378 static const struct nla_policy
379 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
380 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
383 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
384 struct wireless_dev *wdev,
385 const void *data, int data_len)
388 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
392 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
393 hwsim_vendor_test_policy, NULL);
396 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
398 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
399 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
401 /* Send a vendor event as a test. Note that this would not normally be
402 * done within a command handler, but rather, based on some other
403 * trigger. For simplicity, this command is used to trigger the event
406 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
408 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
410 /* skb_put() or nla_put() will fill up data within
411 * NL80211_ATTR_VENDOR_DATA.
414 /* Add vendor data */
415 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
417 /* Send the event - this will call nla_nest_end() */
418 cfg80211_vendor_event(skb, GFP_KERNEL);
421 /* Send a response to the command */
422 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
426 /* skb_put() or nla_put() will fill up data within
427 * NL80211_ATTR_VENDOR_DATA
429 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
431 return cfg80211_vendor_cmd_reply(skb);
434 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
436 .info = { .vendor_id = OUI_QCA,
437 .subcmd = QCA_NL80211_SUBCMD_TEST },
438 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
439 .doit = mac80211_hwsim_vendor_cmd_test,
443 /* Advertise support vendor specific events */
444 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
445 { .vendor_id = OUI_QCA, .subcmd = 1 },
448 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
449 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
450 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
451 BIT(NL80211_IFTYPE_P2P_CLIENT) |
452 #ifdef CONFIG_MAC80211_MESH
453 BIT(NL80211_IFTYPE_MESH_POINT) |
455 BIT(NL80211_IFTYPE_AP) |
456 BIT(NL80211_IFTYPE_P2P_GO) },
457 /* must be last, see hwsim_if_comb */
458 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
461 static const struct ieee80211_iface_combination hwsim_if_comb[] = {
463 .limits = hwsim_if_limits,
464 /* remove the last entry which is P2P_DEVICE */
465 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
466 .max_interfaces = 2048,
467 .num_different_channels = 1,
468 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
469 BIT(NL80211_CHAN_WIDTH_20) |
470 BIT(NL80211_CHAN_WIDTH_40) |
471 BIT(NL80211_CHAN_WIDTH_80) |
472 BIT(NL80211_CHAN_WIDTH_160),
476 static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
478 .limits = hwsim_if_limits,
479 .n_limits = ARRAY_SIZE(hwsim_if_limits),
480 .max_interfaces = 2048,
481 .num_different_channels = 1,
482 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
483 BIT(NL80211_CHAN_WIDTH_20) |
484 BIT(NL80211_CHAN_WIDTH_40) |
485 BIT(NL80211_CHAN_WIDTH_80) |
486 BIT(NL80211_CHAN_WIDTH_160),
490 static spinlock_t hwsim_radio_lock;
491 static LIST_HEAD(hwsim_radios);
492 static int hwsim_radio_idx;
494 static struct platform_driver mac80211_hwsim_driver = {
496 .name = "mac80211_hwsim",
500 struct mac80211_hwsim_data {
501 struct list_head list;
502 struct ieee80211_hw *hw;
504 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
505 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
506 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
507 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
508 struct ieee80211_iface_combination if_combination;
510 struct mac_address addresses[2];
513 bool destroy_on_close;
514 struct work_struct destroy_work;
517 const struct ieee80211_regdomain *regd;
519 struct ieee80211_channel *tmp_chan;
520 struct ieee80211_channel *roc_chan;
522 struct delayed_work roc_start;
523 struct delayed_work roc_done;
524 struct delayed_work hw_scan;
525 struct cfg80211_scan_request *hw_scan_request;
526 struct ieee80211_vif *hw_scan_vif;
528 u8 scan_addr[ETH_ALEN];
530 struct ieee80211_channel *channel;
531 unsigned long next_start, start, end;
532 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
533 ARRAY_SIZE(hwsim_channels_5ghz)];
535 struct ieee80211_channel *channel;
536 u64 beacon_int /* beacon interval in us */;
537 unsigned int rx_filter;
538 bool started, idle, scanning;
540 struct tasklet_hrtimer beacon_timer;
542 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
544 bool ps_poll_pending;
545 struct dentry *debugfs;
547 uintptr_t pending_cookie;
548 struct sk_buff_head pending; /* packets pending */
550 * Only radios in the same group can communicate together (the
551 * channel has to match too). Each bit represents a group. A
552 * radio can be in more than one group.
556 /* group shared by radios created in the same netns */
558 /* wmediumd portid responsible for netgroup of this radio */
561 /* difference between this hw's clock and the real clock, in usecs */
564 /* absolute beacon transmission time. Used to cover up "tx" delay. */
577 struct hwsim_radiotap_hdr {
578 struct ieee80211_radiotap_header hdr;
586 struct hwsim_radiotap_ack_hdr {
587 struct ieee80211_radiotap_header hdr;
594 /* MAC80211_HWSIM netlink family */
595 static struct genl_family hwsim_genl_family;
597 enum hwsim_multicast_groups {
601 static const struct genl_multicast_group hwsim_mcgrps[] = {
602 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
605 /* MAC80211_HWSIM netlink policy */
607 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
608 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
609 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
610 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
611 .len = IEEE80211_MAX_DATA_LEN },
612 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
613 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
614 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
615 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
616 .len = IEEE80211_TX_MAX_RATES *
617 sizeof(struct hwsim_tx_rate)},
618 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
619 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
620 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
621 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
622 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
623 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
624 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
625 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
626 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
627 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
628 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
631 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
633 struct ieee80211_channel *chan);
635 /* sysfs attributes */
636 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
638 struct mac80211_hwsim_data *data = dat;
639 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
641 struct ieee80211_pspoll *pspoll;
646 wiphy_debug(data->hw->wiphy,
647 "%s: send PS-Poll to %pM for aid %d\n",
648 __func__, vp->bssid, vp->aid);
650 skb = dev_alloc_skb(sizeof(*pspoll));
653 pspoll = skb_put(skb, sizeof(*pspoll));
654 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
655 IEEE80211_STYPE_PSPOLL |
657 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
658 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
659 memcpy(pspoll->ta, mac, ETH_ALEN);
662 mac80211_hwsim_tx_frame(data->hw, skb,
663 rcu_dereference(vif->chanctx_conf)->def.chan);
667 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
668 struct ieee80211_vif *vif, int ps)
670 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
672 struct ieee80211_hdr *hdr;
673 struct ieee80211_tx_info *cb;
678 wiphy_debug(data->hw->wiphy,
679 "%s: send data::nullfunc to %pM ps=%d\n",
680 __func__, vp->bssid, ps);
682 skb = dev_alloc_skb(sizeof(*hdr));
685 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
686 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
687 IEEE80211_STYPE_NULLFUNC |
688 (ps ? IEEE80211_FCTL_PM : 0));
689 hdr->duration_id = cpu_to_le16(0);
690 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
691 memcpy(hdr->addr2, mac, ETH_ALEN);
692 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
694 cb = IEEE80211_SKB_CB(skb);
695 cb->control.rates[0].count = 1;
696 cb->control.rates[1].idx = -1;
699 mac80211_hwsim_tx_frame(data->hw, skb,
700 rcu_dereference(vif->chanctx_conf)->def.chan);
705 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
706 struct ieee80211_vif *vif)
708 struct mac80211_hwsim_data *data = dat;
709 hwsim_send_nullfunc(data, mac, vif, 1);
712 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
713 struct ieee80211_vif *vif)
715 struct mac80211_hwsim_data *data = dat;
716 hwsim_send_nullfunc(data, mac, vif, 0);
719 static int hwsim_fops_ps_read(void *dat, u64 *val)
721 struct mac80211_hwsim_data *data = dat;
726 static int hwsim_fops_ps_write(void *dat, u64 val)
728 struct mac80211_hwsim_data *data = dat;
731 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
732 val != PS_MANUAL_POLL)
735 if (val == PS_MANUAL_POLL) {
736 if (data->ps != PS_ENABLED)
739 ieee80211_iterate_active_interfaces_atomic(
740 data->hw, IEEE80211_IFACE_ITER_NORMAL,
741 hwsim_send_ps_poll, data);
749 if (old_ps == PS_DISABLED && val != PS_DISABLED) {
750 ieee80211_iterate_active_interfaces_atomic(
751 data->hw, IEEE80211_IFACE_ITER_NORMAL,
752 hwsim_send_nullfunc_ps, data);
753 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
754 ieee80211_iterate_active_interfaces_atomic(
755 data->hw, IEEE80211_IFACE_ITER_NORMAL,
756 hwsim_send_nullfunc_no_ps, data);
763 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
766 static int hwsim_write_simulate_radar(void *dat, u64 val)
768 struct mac80211_hwsim_data *data = dat;
770 ieee80211_radar_detected(data->hw);
775 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
776 hwsim_write_simulate_radar, "%llu\n");
778 static int hwsim_fops_group_read(void *dat, u64 *val)
780 struct mac80211_hwsim_data *data = dat;
785 static int hwsim_fops_group_write(void *dat, u64 val)
787 struct mac80211_hwsim_data *data = dat;
792 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
793 hwsim_fops_group_read, hwsim_fops_group_write,
796 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
797 struct net_device *dev)
799 /* TODO: allow packet injection */
804 static inline u64 mac80211_hwsim_get_tsf_raw(void)
806 return ktime_to_us(ktime_get_real());
809 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
811 u64 now = mac80211_hwsim_get_tsf_raw();
812 return cpu_to_le64(now + data->tsf_offset);
815 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
816 struct ieee80211_vif *vif)
818 struct mac80211_hwsim_data *data = hw->priv;
819 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
822 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
823 struct ieee80211_vif *vif, u64 tsf)
825 struct mac80211_hwsim_data *data = hw->priv;
826 u64 now = mac80211_hwsim_get_tsf(hw, vif);
827 u32 bcn_int = data->beacon_int;
828 u64 delta = abs(tsf - now);
830 /* adjust after beaconing with new timestamp at old TBTT */
832 data->tsf_offset += delta;
833 data->bcn_delta = do_div(delta, bcn_int);
835 data->tsf_offset -= delta;
836 data->bcn_delta = -(s64)do_div(delta, bcn_int);
840 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
841 struct sk_buff *tx_skb,
842 struct ieee80211_channel *chan)
844 struct mac80211_hwsim_data *data = hw->priv;
846 struct hwsim_radiotap_hdr *hdr;
848 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
849 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
851 if (WARN_ON(!txrate))
854 if (!netif_running(hwsim_mon))
857 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
861 hdr = skb_push(skb, sizeof(*hdr));
862 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
864 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
865 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
866 (1 << IEEE80211_RADIOTAP_RATE) |
867 (1 << IEEE80211_RADIOTAP_TSFT) |
868 (1 << IEEE80211_RADIOTAP_CHANNEL));
869 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
871 hdr->rt_rate = txrate->bitrate / 5;
872 hdr->rt_channel = cpu_to_le16(chan->center_freq);
873 flags = IEEE80211_CHAN_2GHZ;
874 if (txrate->flags & IEEE80211_RATE_ERP_G)
875 flags |= IEEE80211_CHAN_OFDM;
877 flags |= IEEE80211_CHAN_CCK;
878 hdr->rt_chbitmask = cpu_to_le16(flags);
880 skb->dev = hwsim_mon;
881 skb_reset_mac_header(skb);
882 skb->ip_summed = CHECKSUM_UNNECESSARY;
883 skb->pkt_type = PACKET_OTHERHOST;
884 skb->protocol = htons(ETH_P_802_2);
885 memset(skb->cb, 0, sizeof(skb->cb));
890 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
894 struct hwsim_radiotap_ack_hdr *hdr;
896 struct ieee80211_hdr *hdr11;
898 if (!netif_running(hwsim_mon))
901 skb = dev_alloc_skb(100);
905 hdr = skb_put(skb, sizeof(*hdr));
906 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
908 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
909 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
910 (1 << IEEE80211_RADIOTAP_CHANNEL));
913 hdr->rt_channel = cpu_to_le16(chan->center_freq);
914 flags = IEEE80211_CHAN_2GHZ;
915 hdr->rt_chbitmask = cpu_to_le16(flags);
917 hdr11 = skb_put(skb, 10);
918 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
919 IEEE80211_STYPE_ACK);
920 hdr11->duration_id = cpu_to_le16(0);
921 memcpy(hdr11->addr1, addr, ETH_ALEN);
923 skb->dev = hwsim_mon;
924 skb_reset_mac_header(skb);
925 skb->ip_summed = CHECKSUM_UNNECESSARY;
926 skb->pkt_type = PACKET_OTHERHOST;
927 skb->protocol = htons(ETH_P_802_2);
928 memset(skb->cb, 0, sizeof(skb->cb));
932 struct mac80211_hwsim_addr_match_data {
937 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
938 struct ieee80211_vif *vif)
940 struct mac80211_hwsim_addr_match_data *md = data;
942 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
946 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
949 struct mac80211_hwsim_addr_match_data md = {
953 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
956 memcpy(md.addr, addr, ETH_ALEN);
958 ieee80211_iterate_active_interfaces_atomic(data->hw,
959 IEEE80211_IFACE_ITER_NORMAL,
960 mac80211_hwsim_addr_iter,
966 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
975 /* TODO: accept (some) Beacons by default and other frames only
976 * if pending PS-Poll has been sent */
979 /* Allow unicast frames to own address if there is a pending
981 if (data->ps_poll_pending &&
982 mac80211_hwsim_addr_match(data, skb->data + 4)) {
983 data->ps_poll_pending = false;
992 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
993 struct sk_buff *skb, int portid)
1000 for_each_net_rcu(net) {
1001 if (data->netgroup == hwsim_net_get_netgroup(net)) {
1002 res = genlmsg_unicast(net, skb, portid);
1015 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1016 struct sk_buff *my_skb,
1019 struct sk_buff *skb;
1020 struct mac80211_hwsim_data *data = hw->priv;
1021 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1022 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1024 unsigned int hwsim_flags = 0;
1026 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1029 if (data->ps != PS_DISABLED)
1030 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1031 /* If the queue contains MAX_QUEUE skb's drop some */
1032 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1033 /* Droping until WARN_QUEUE level */
1034 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1035 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1040 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1042 goto nla_put_failure;
1044 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1046 if (msg_head == NULL) {
1047 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
1048 goto nla_put_failure;
1051 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1052 ETH_ALEN, data->addresses[1].addr))
1053 goto nla_put_failure;
1055 /* We get the skb->data */
1056 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1057 goto nla_put_failure;
1059 /* We get the flags for this transmission, and we translate them to
1062 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1063 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1065 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1066 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1068 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1069 goto nla_put_failure;
1071 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1072 goto nla_put_failure;
1074 /* We get the tx control (rate and retries) info*/
1076 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1077 tx_attempts[i].idx = info->status.rates[i].idx;
1078 tx_attempts[i].count = info->status.rates[i].count;
1081 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1082 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1084 goto nla_put_failure;
1086 /* We create a cookie to identify this skb */
1087 data->pending_cookie++;
1088 cookie = data->pending_cookie;
1089 info->rate_driver_data[0] = (void *)cookie;
1090 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1091 goto nla_put_failure;
1093 genlmsg_end(skb, msg_head);
1094 if (hwsim_unicast_netgroup(data, skb, dst_portid))
1095 goto err_free_txskb;
1097 /* Enqueue the packet */
1098 skb_queue_tail(&data->pending, my_skb);
1100 data->tx_bytes += my_skb->len;
1106 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1107 ieee80211_free_txskb(hw, my_skb);
1111 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1112 struct ieee80211_channel *c2)
1117 return c1->center_freq == c2->center_freq;
1120 struct tx_iter_data {
1121 struct ieee80211_channel *channel;
1125 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1126 struct ieee80211_vif *vif)
1128 struct tx_iter_data *data = _data;
1130 if (!vif->chanctx_conf)
1133 if (!hwsim_chans_compat(data->channel,
1134 rcu_dereference(vif->chanctx_conf)->def.chan))
1137 data->receive = true;
1140 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1143 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1145 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1146 * (but you should use a valid OUI, not that)
1148 * If anyone wants to 'donate' a radiotap OUI/subns code
1149 * please send a patch removing this #ifdef and changing
1150 * the values accordingly.
1152 #ifdef HWSIM_RADIOTAP_OUI
1153 struct ieee80211_vendor_radiotap *rtap;
1156 * Note that this code requires the headroom in the SKB
1157 * that was allocated earlier.
1159 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1160 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1161 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1162 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1166 * Radiotap vendor namespaces can (and should) also be
1167 * split into fields by using the standard radiotap
1168 * presence bitmap mechanism. Use just BIT(0) here for
1169 * the presence bitmap.
1171 rtap->present = BIT(0);
1172 /* We have 8 bytes of (dummy) data */
1174 /* For testing, also require it to be aligned */
1176 /* And also test that padding works, 4 bytes */
1179 memcpy(rtap->data, "ABCDEFGH", 8);
1180 /* make sure to clear padding, mac80211 doesn't */
1181 memset(rtap->data + 8, 0, 4);
1183 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1187 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1188 struct sk_buff *skb,
1189 struct ieee80211_channel *chan)
1191 struct mac80211_hwsim_data *data = hw->priv, *data2;
1193 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1194 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1195 struct ieee80211_rx_status rx_status;
1198 memset(&rx_status, 0, sizeof(rx_status));
1199 rx_status.flag |= RX_FLAG_MACTIME_START;
1200 rx_status.freq = chan->center_freq;
1201 rx_status.band = chan->band;
1202 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1203 rx_status.rate_idx =
1204 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1206 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1207 rx_status.encoding = RX_ENC_VHT;
1209 rx_status.rate_idx = info->control.rates[0].idx;
1210 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1211 rx_status.encoding = RX_ENC_HT;
1213 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1214 rx_status.bw = RATE_INFO_BW_40;
1215 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1216 rx_status.bw = RATE_INFO_BW_80;
1217 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1218 rx_status.bw = RATE_INFO_BW_160;
1220 rx_status.bw = RATE_INFO_BW_20;
1221 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1222 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1223 /* TODO: simulate real signal strength (and optional packet loss) */
1224 rx_status.signal = -50;
1225 if (info->control.vif)
1226 rx_status.signal += info->control.vif->bss_conf.txpower;
1228 if (data->ps != PS_DISABLED)
1229 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1231 /* release the skb's source info */
1239 * Get absolute mactime here so all HWs RX at the "same time", and
1240 * absolute TX time for beacon mactime so the timestamp matches.
1241 * Giving beacons a different mactime than non-beacons looks messy, but
1242 * it helps the Toffset be exact and a ~10us mactime discrepancy
1243 * probably doesn't really matter.
1245 if (ieee80211_is_beacon(hdr->frame_control) ||
1246 ieee80211_is_probe_resp(hdr->frame_control))
1247 now = data->abs_bcn_ts;
1249 now = mac80211_hwsim_get_tsf_raw();
1251 /* Copy skb to all enabled radios that are on the current frequency */
1252 spin_lock(&hwsim_radio_lock);
1253 list_for_each_entry(data2, &hwsim_radios, list) {
1254 struct sk_buff *nskb;
1255 struct tx_iter_data tx_iter_data = {
1263 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1264 !hwsim_ps_rx_ok(data2, skb))
1267 if (!(data->group & data2->group))
1270 if (data->netgroup != data2->netgroup)
1273 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1274 !hwsim_chans_compat(chan, data2->channel)) {
1275 ieee80211_iterate_active_interfaces_atomic(
1276 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1277 mac80211_hwsim_tx_iter, &tx_iter_data);
1278 if (!tx_iter_data.receive)
1283 * reserve some space for our vendor and the normal
1284 * radiotap header, since we're copying anyway
1286 if (skb->len < PAGE_SIZE && paged_rx) {
1287 struct page *page = alloc_page(GFP_ATOMIC);
1292 nskb = dev_alloc_skb(128);
1298 memcpy(page_address(page), skb->data, skb->len);
1299 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1301 nskb = skb_copy(skb, GFP_ATOMIC);
1306 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1309 rx_status.mactime = now + data2->tsf_offset;
1311 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1313 mac80211_hwsim_add_vendor_rtap(nskb);
1316 data2->rx_bytes += nskb->len;
1317 ieee80211_rx_irqsafe(data2->hw, nskb);
1319 spin_unlock(&hwsim_radio_lock);
1324 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1325 struct ieee80211_tx_control *control,
1326 struct sk_buff *skb)
1328 struct mac80211_hwsim_data *data = hw->priv;
1329 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1330 struct ieee80211_hdr *hdr = (void *)skb->data;
1331 struct ieee80211_chanctx_conf *chanctx_conf;
1332 struct ieee80211_channel *channel;
1336 if (WARN_ON(skb->len < 10)) {
1337 /* Should not happen; just a sanity check for addr1 use */
1338 ieee80211_free_txskb(hw, skb);
1342 if (!data->use_chanctx) {
1343 channel = data->channel;
1344 } else if (txi->hw_queue == 4) {
1345 channel = data->tmp_chan;
1347 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1349 channel = chanctx_conf->def.chan;
1354 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1355 ieee80211_free_txskb(hw, skb);
1359 if (data->idle && !data->tmp_chan) {
1360 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
1361 ieee80211_free_txskb(hw, skb);
1365 if (txi->control.vif)
1366 hwsim_check_magic(txi->control.vif);
1368 hwsim_check_sta_magic(control->sta);
1370 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1371 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1373 ARRAY_SIZE(txi->control.rates));
1375 if (skb->len >= 24 + 8 &&
1376 ieee80211_is_probe_resp(hdr->frame_control)) {
1377 /* fake header transmission time */
1378 struct ieee80211_mgmt *mgmt;
1379 struct ieee80211_rate *txrate;
1382 mgmt = (struct ieee80211_mgmt *)skb->data;
1383 txrate = ieee80211_get_tx_rate(hw, txi);
1384 ts = mac80211_hwsim_get_tsf_raw();
1385 mgmt->u.probe_resp.timestamp =
1386 cpu_to_le64(ts + data->tsf_offset +
1387 24 * 8 * 10 / txrate->bitrate);
1390 mac80211_hwsim_monitor_rx(hw, skb, channel);
1392 /* wmediumd mode check */
1393 _portid = ACCESS_ONCE(data->wmediumd);
1396 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1398 /* NO wmediumd detected, perfect medium simulation */
1400 data->tx_bytes += skb->len;
1401 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1403 if (ack && skb->len >= 16)
1404 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1406 ieee80211_tx_info_clear_status(txi);
1408 /* frame was transmitted at most favorable rate at first attempt */
1409 txi->control.rates[0].count = 1;
1410 txi->control.rates[1].idx = -1;
1412 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1413 txi->flags |= IEEE80211_TX_STAT_ACK;
1414 ieee80211_tx_status_irqsafe(hw, skb);
1418 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1420 struct mac80211_hwsim_data *data = hw->priv;
1421 wiphy_debug(hw->wiphy, "%s\n", __func__);
1422 data->started = true;
1427 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1429 struct mac80211_hwsim_data *data = hw->priv;
1430 data->started = false;
1431 tasklet_hrtimer_cancel(&data->beacon_timer);
1432 wiphy_debug(hw->wiphy, "%s\n", __func__);
1436 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1437 struct ieee80211_vif *vif)
1439 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1440 __func__, ieee80211_vif_type_p2p(vif),
1442 hwsim_set_magic(vif);
1445 vif->hw_queue[IEEE80211_AC_VO] = 0;
1446 vif->hw_queue[IEEE80211_AC_VI] = 1;
1447 vif->hw_queue[IEEE80211_AC_BE] = 2;
1448 vif->hw_queue[IEEE80211_AC_BK] = 3;
1454 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1455 struct ieee80211_vif *vif,
1456 enum nl80211_iftype newtype,
1459 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1460 wiphy_debug(hw->wiphy,
1461 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1462 __func__, ieee80211_vif_type_p2p(vif),
1463 newtype, vif->addr);
1464 hwsim_check_magic(vif);
1467 * interface may change from non-AP to AP in
1468 * which case this needs to be set up again
1475 static void mac80211_hwsim_remove_interface(
1476 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1478 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1479 __func__, ieee80211_vif_type_p2p(vif),
1481 hwsim_check_magic(vif);
1482 hwsim_clear_magic(vif);
1485 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1486 struct sk_buff *skb,
1487 struct ieee80211_channel *chan)
1489 struct mac80211_hwsim_data *data = hw->priv;
1490 u32 _pid = ACCESS_ONCE(data->wmediumd);
1492 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1493 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1494 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1496 ARRAY_SIZE(txi->control.rates));
1499 mac80211_hwsim_monitor_rx(hw, skb, chan);
1502 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1504 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1508 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1509 struct ieee80211_vif *vif)
1511 struct mac80211_hwsim_data *data = arg;
1512 struct ieee80211_hw *hw = data->hw;
1513 struct ieee80211_tx_info *info;
1514 struct ieee80211_rate *txrate;
1515 struct ieee80211_mgmt *mgmt;
1516 struct sk_buff *skb;
1518 hwsim_check_magic(vif);
1520 if (vif->type != NL80211_IFTYPE_AP &&
1521 vif->type != NL80211_IFTYPE_MESH_POINT &&
1522 vif->type != NL80211_IFTYPE_ADHOC)
1525 skb = ieee80211_beacon_get(hw, vif);
1528 info = IEEE80211_SKB_CB(skb);
1529 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1530 ieee80211_get_tx_rates(vif, NULL, skb,
1531 info->control.rates,
1532 ARRAY_SIZE(info->control.rates));
1534 txrate = ieee80211_get_tx_rate(hw, info);
1536 mgmt = (struct ieee80211_mgmt *) skb->data;
1537 /* fake header transmission time */
1538 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1539 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1541 24 * 8 * 10 / txrate->bitrate);
1543 mac80211_hwsim_tx_frame(hw, skb,
1544 rcu_dereference(vif->chanctx_conf)->def.chan);
1546 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1547 ieee80211_csa_finish(vif);
1550 static enum hrtimer_restart
1551 mac80211_hwsim_beacon(struct hrtimer *timer)
1553 struct mac80211_hwsim_data *data =
1554 container_of(timer, struct mac80211_hwsim_data,
1555 beacon_timer.timer);
1556 struct ieee80211_hw *hw = data->hw;
1557 u64 bcn_int = data->beacon_int;
1563 ieee80211_iterate_active_interfaces_atomic(
1564 hw, IEEE80211_IFACE_ITER_NORMAL,
1565 mac80211_hwsim_beacon_tx, data);
1567 /* beacon at new TBTT + beacon interval */
1568 if (data->bcn_delta) {
1569 bcn_int -= data->bcn_delta;
1570 data->bcn_delta = 0;
1573 next_bcn = ktime_add(hrtimer_get_expires(timer),
1574 ns_to_ktime(bcn_int * 1000));
1575 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1577 return HRTIMER_NORESTART;
1580 static const char * const hwsim_chanwidths[] = {
1581 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1582 [NL80211_CHAN_WIDTH_20] = "ht20",
1583 [NL80211_CHAN_WIDTH_40] = "ht40",
1584 [NL80211_CHAN_WIDTH_80] = "vht80",
1585 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1586 [NL80211_CHAN_WIDTH_160] = "vht160",
1589 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1591 struct mac80211_hwsim_data *data = hw->priv;
1592 struct ieee80211_conf *conf = &hw->conf;
1593 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1594 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1595 [IEEE80211_SMPS_OFF] = "off",
1596 [IEEE80211_SMPS_STATIC] = "static",
1597 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1601 if (conf->chandef.chan)
1602 wiphy_debug(hw->wiphy,
1603 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1605 conf->chandef.chan->center_freq,
1606 conf->chandef.center_freq1,
1607 conf->chandef.center_freq2,
1608 hwsim_chanwidths[conf->chandef.width],
1609 !!(conf->flags & IEEE80211_CONF_IDLE),
1610 !!(conf->flags & IEEE80211_CONF_PS),
1611 smps_modes[conf->smps_mode]);
1613 wiphy_debug(hw->wiphy,
1614 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1616 !!(conf->flags & IEEE80211_CONF_IDLE),
1617 !!(conf->flags & IEEE80211_CONF_PS),
1618 smps_modes[conf->smps_mode]);
1620 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1622 WARN_ON(conf->chandef.chan && data->use_chanctx);
1624 mutex_lock(&data->mutex);
1625 if (data->scanning && conf->chandef.chan) {
1626 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1627 if (data->survey_data[idx].channel == data->channel) {
1628 data->survey_data[idx].start =
1629 data->survey_data[idx].next_start;
1630 data->survey_data[idx].end = jiffies;
1635 data->channel = conf->chandef.chan;
1637 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1638 if (data->survey_data[idx].channel &&
1639 data->survey_data[idx].channel != data->channel)
1641 data->survey_data[idx].channel = data->channel;
1642 data->survey_data[idx].next_start = jiffies;
1646 data->channel = conf->chandef.chan;
1648 mutex_unlock(&data->mutex);
1650 if (!data->started || !data->beacon_int)
1651 tasklet_hrtimer_cancel(&data->beacon_timer);
1652 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1653 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1654 u32 bcn_int = data->beacon_int;
1655 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1657 tasklet_hrtimer_start(&data->beacon_timer,
1658 ns_to_ktime(until_tbtt * 1000),
1666 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1667 unsigned int changed_flags,
1668 unsigned int *total_flags,u64 multicast)
1670 struct mac80211_hwsim_data *data = hw->priv;
1672 wiphy_debug(hw->wiphy, "%s\n", __func__);
1674 data->rx_filter = 0;
1675 if (*total_flags & FIF_ALLMULTI)
1676 data->rx_filter |= FIF_ALLMULTI;
1678 *total_flags = data->rx_filter;
1681 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1682 struct ieee80211_vif *vif)
1684 unsigned int *count = data;
1685 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1691 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1692 struct ieee80211_vif *vif,
1693 struct ieee80211_bss_conf *info,
1696 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1697 struct mac80211_hwsim_data *data = hw->priv;
1699 hwsim_check_magic(vif);
1701 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1702 __func__, changed, vif->addr);
1704 if (changed & BSS_CHANGED_BSSID) {
1705 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1706 __func__, info->bssid);
1707 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1710 if (changed & BSS_CHANGED_ASSOC) {
1711 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1712 info->assoc, info->aid);
1713 vp->assoc = info->assoc;
1714 vp->aid = info->aid;
1717 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1718 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1719 info->enable_beacon, info->beacon_int);
1720 vp->bcn_en = info->enable_beacon;
1721 if (data->started &&
1722 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1723 info->enable_beacon) {
1724 u64 tsf, until_tbtt;
1726 data->beacon_int = info->beacon_int * 1024;
1727 tsf = mac80211_hwsim_get_tsf(hw, vif);
1728 bcn_int = data->beacon_int;
1729 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1730 tasklet_hrtimer_start(&data->beacon_timer,
1731 ns_to_ktime(until_tbtt * 1000),
1733 } else if (!info->enable_beacon) {
1734 unsigned int count = 0;
1735 ieee80211_iterate_active_interfaces_atomic(
1736 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1737 mac80211_hwsim_bcn_en_iter, &count);
1738 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1741 tasklet_hrtimer_cancel(&data->beacon_timer);
1742 data->beacon_int = 0;
1747 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1748 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1749 info->use_cts_prot);
1752 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1753 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1754 info->use_short_preamble);
1757 if (changed & BSS_CHANGED_ERP_SLOT) {
1758 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1761 if (changed & BSS_CHANGED_HT) {
1762 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1763 info->ht_operation_mode);
1766 if (changed & BSS_CHANGED_BASIC_RATES) {
1767 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1768 (unsigned long long) info->basic_rates);
1771 if (changed & BSS_CHANGED_TXPOWER)
1772 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1775 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1776 struct ieee80211_vif *vif,
1777 struct ieee80211_sta *sta)
1779 hwsim_check_magic(vif);
1780 hwsim_set_sta_magic(sta);
1785 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1786 struct ieee80211_vif *vif,
1787 struct ieee80211_sta *sta)
1789 hwsim_check_magic(vif);
1790 hwsim_clear_sta_magic(sta);
1795 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1796 struct ieee80211_vif *vif,
1797 enum sta_notify_cmd cmd,
1798 struct ieee80211_sta *sta)
1800 hwsim_check_magic(vif);
1803 case STA_NOTIFY_SLEEP:
1804 case STA_NOTIFY_AWAKE:
1805 /* TODO: make good use of these flags */
1808 WARN(1, "Invalid sta notify: %d\n", cmd);
1813 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1814 struct ieee80211_sta *sta,
1817 hwsim_check_sta_magic(sta);
1821 static int mac80211_hwsim_conf_tx(
1822 struct ieee80211_hw *hw,
1823 struct ieee80211_vif *vif, u16 queue,
1824 const struct ieee80211_tx_queue_params *params)
1826 wiphy_debug(hw->wiphy,
1827 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1829 params->txop, params->cw_min,
1830 params->cw_max, params->aifs);
1834 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1835 struct survey_info *survey)
1837 struct mac80211_hwsim_data *hwsim = hw->priv;
1839 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1842 mutex_lock(&hwsim->mutex);
1843 survey->channel = hwsim->survey_data[idx].channel;
1844 if (!survey->channel) {
1845 mutex_unlock(&hwsim->mutex);
1850 * Magically conjured dummy values --- this is only ok for simulated hardware.
1852 * A real driver which cannot determine real values noise MUST NOT
1853 * report any, especially not a magically conjured ones :-)
1855 survey->filled = SURVEY_INFO_NOISE_DBM |
1857 SURVEY_INFO_TIME_BUSY;
1858 survey->noise = -92;
1860 jiffies_to_msecs(hwsim->survey_data[idx].end -
1861 hwsim->survey_data[idx].start);
1862 /* report 12.5% of channel time is used */
1863 survey->time_busy = survey->time/8;
1864 mutex_unlock(&hwsim->mutex);
1869 #ifdef CONFIG_NL80211_TESTMODE
1871 * This section contains example code for using netlink
1872 * attributes with the testmode command in nl80211.
1875 /* These enums need to be kept in sync with userspace */
1876 enum hwsim_testmode_attr {
1877 __HWSIM_TM_ATTR_INVALID = 0,
1878 HWSIM_TM_ATTR_CMD = 1,
1879 HWSIM_TM_ATTR_PS = 2,
1882 __HWSIM_TM_ATTR_AFTER_LAST,
1883 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1886 enum hwsim_testmode_cmd {
1887 HWSIM_TM_CMD_SET_PS = 0,
1888 HWSIM_TM_CMD_GET_PS = 1,
1889 HWSIM_TM_CMD_STOP_QUEUES = 2,
1890 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1893 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1894 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1895 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1898 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1899 struct ieee80211_vif *vif,
1900 void *data, int len)
1902 struct mac80211_hwsim_data *hwsim = hw->priv;
1903 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1904 struct sk_buff *skb;
1907 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1908 hwsim_testmode_policy, NULL);
1912 if (!tb[HWSIM_TM_ATTR_CMD])
1915 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1916 case HWSIM_TM_CMD_SET_PS:
1917 if (!tb[HWSIM_TM_ATTR_PS])
1919 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1920 return hwsim_fops_ps_write(hwsim, ps);
1921 case HWSIM_TM_CMD_GET_PS:
1922 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1923 nla_total_size(sizeof(u32)));
1926 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1927 goto nla_put_failure;
1928 return cfg80211_testmode_reply(skb);
1929 case HWSIM_TM_CMD_STOP_QUEUES:
1930 ieee80211_stop_queues(hw);
1932 case HWSIM_TM_CMD_WAKE_QUEUES:
1933 ieee80211_wake_queues(hw);
1945 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1946 struct ieee80211_vif *vif,
1947 struct ieee80211_ampdu_params *params)
1949 struct ieee80211_sta *sta = params->sta;
1950 enum ieee80211_ampdu_mlme_action action = params->action;
1951 u16 tid = params->tid;
1954 case IEEE80211_AMPDU_TX_START:
1955 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1957 case IEEE80211_AMPDU_TX_STOP_CONT:
1958 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1959 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1960 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1962 case IEEE80211_AMPDU_TX_OPERATIONAL:
1964 case IEEE80211_AMPDU_RX_START:
1965 case IEEE80211_AMPDU_RX_STOP:
1974 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1975 struct ieee80211_vif *vif,
1976 u32 queues, bool drop)
1978 /* Not implemented, queues only on kernel side */
1981 static void hw_scan_work(struct work_struct *work)
1983 struct mac80211_hwsim_data *hwsim =
1984 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1985 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1988 mutex_lock(&hwsim->mutex);
1989 if (hwsim->scan_chan_idx >= req->n_channels) {
1990 struct cfg80211_scan_info info = {
1994 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1995 ieee80211_scan_completed(hwsim->hw, &info);
1996 hwsim->hw_scan_request = NULL;
1997 hwsim->hw_scan_vif = NULL;
1998 hwsim->tmp_chan = NULL;
1999 mutex_unlock(&hwsim->mutex);
2003 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
2004 req->channels[hwsim->scan_chan_idx]->center_freq);
2006 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2007 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2008 IEEE80211_CHAN_RADAR) ||
2014 for (i = 0; i < req->n_ssids; i++) {
2015 struct sk_buff *probe;
2016 struct ieee80211_mgmt *mgmt;
2018 probe = ieee80211_probereq_get(hwsim->hw,
2021 req->ssids[i].ssid_len,
2026 mgmt = (struct ieee80211_mgmt *) probe->data;
2027 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2028 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2031 skb_put_data(probe, req->ie, req->ie_len);
2034 if (!ieee80211_tx_prepare_skb(hwsim->hw,
2037 hwsim->tmp_chan->band,
2045 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2051 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2052 msecs_to_jiffies(dwell));
2053 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2054 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2055 hwsim->survey_data[hwsim->scan_chan_idx].end =
2056 jiffies + msecs_to_jiffies(dwell);
2057 hwsim->scan_chan_idx++;
2058 mutex_unlock(&hwsim->mutex);
2061 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2062 struct ieee80211_vif *vif,
2063 struct ieee80211_scan_request *hw_req)
2065 struct mac80211_hwsim_data *hwsim = hw->priv;
2066 struct cfg80211_scan_request *req = &hw_req->req;
2068 mutex_lock(&hwsim->mutex);
2069 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2070 mutex_unlock(&hwsim->mutex);
2073 hwsim->hw_scan_request = req;
2074 hwsim->hw_scan_vif = vif;
2075 hwsim->scan_chan_idx = 0;
2076 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2077 get_random_mask_addr(hwsim->scan_addr,
2078 hw_req->req.mac_addr,
2079 hw_req->req.mac_addr_mask);
2081 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2082 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2083 mutex_unlock(&hwsim->mutex);
2085 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
2087 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2092 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2093 struct ieee80211_vif *vif)
2095 struct mac80211_hwsim_data *hwsim = hw->priv;
2096 struct cfg80211_scan_info info = {
2100 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
2102 cancel_delayed_work_sync(&hwsim->hw_scan);
2104 mutex_lock(&hwsim->mutex);
2105 ieee80211_scan_completed(hwsim->hw, &info);
2106 hwsim->tmp_chan = NULL;
2107 hwsim->hw_scan_request = NULL;
2108 hwsim->hw_scan_vif = NULL;
2109 mutex_unlock(&hwsim->mutex);
2112 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2113 struct ieee80211_vif *vif,
2116 struct mac80211_hwsim_data *hwsim = hw->priv;
2118 mutex_lock(&hwsim->mutex);
2120 if (hwsim->scanning) {
2121 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
2125 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
2127 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2128 hwsim->scanning = true;
2129 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2132 mutex_unlock(&hwsim->mutex);
2135 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2136 struct ieee80211_vif *vif)
2138 struct mac80211_hwsim_data *hwsim = hw->priv;
2140 mutex_lock(&hwsim->mutex);
2142 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
2143 hwsim->scanning = false;
2144 eth_zero_addr(hwsim->scan_addr);
2146 mutex_unlock(&hwsim->mutex);
2149 static void hw_roc_start(struct work_struct *work)
2151 struct mac80211_hwsim_data *hwsim =
2152 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2154 mutex_lock(&hwsim->mutex);
2156 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2157 hwsim->tmp_chan = hwsim->roc_chan;
2158 ieee80211_ready_on_channel(hwsim->hw);
2160 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2161 msecs_to_jiffies(hwsim->roc_duration));
2163 mutex_unlock(&hwsim->mutex);
2166 static void hw_roc_done(struct work_struct *work)
2168 struct mac80211_hwsim_data *hwsim =
2169 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2171 mutex_lock(&hwsim->mutex);
2172 ieee80211_remain_on_channel_expired(hwsim->hw);
2173 hwsim->tmp_chan = NULL;
2174 mutex_unlock(&hwsim->mutex);
2176 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2179 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2180 struct ieee80211_vif *vif,
2181 struct ieee80211_channel *chan,
2183 enum ieee80211_roc_type type)
2185 struct mac80211_hwsim_data *hwsim = hw->priv;
2187 mutex_lock(&hwsim->mutex);
2188 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2189 mutex_unlock(&hwsim->mutex);
2193 hwsim->roc_chan = chan;
2194 hwsim->roc_duration = duration;
2195 mutex_unlock(&hwsim->mutex);
2197 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2198 chan->center_freq, duration);
2199 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2204 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2206 struct mac80211_hwsim_data *hwsim = hw->priv;
2208 cancel_delayed_work_sync(&hwsim->roc_start);
2209 cancel_delayed_work_sync(&hwsim->roc_done);
2211 mutex_lock(&hwsim->mutex);
2212 hwsim->tmp_chan = NULL;
2213 mutex_unlock(&hwsim->mutex);
2215 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2220 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2221 struct ieee80211_chanctx_conf *ctx)
2223 hwsim_set_chanctx_magic(ctx);
2224 wiphy_debug(hw->wiphy,
2225 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2226 ctx->def.chan->center_freq, ctx->def.width,
2227 ctx->def.center_freq1, ctx->def.center_freq2);
2231 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2232 struct ieee80211_chanctx_conf *ctx)
2234 wiphy_debug(hw->wiphy,
2235 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2236 ctx->def.chan->center_freq, ctx->def.width,
2237 ctx->def.center_freq1, ctx->def.center_freq2);
2238 hwsim_check_chanctx_magic(ctx);
2239 hwsim_clear_chanctx_magic(ctx);
2242 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2243 struct ieee80211_chanctx_conf *ctx,
2246 hwsim_check_chanctx_magic(ctx);
2247 wiphy_debug(hw->wiphy,
2248 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2249 ctx->def.chan->center_freq, ctx->def.width,
2250 ctx->def.center_freq1, ctx->def.center_freq2);
2253 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2254 struct ieee80211_vif *vif,
2255 struct ieee80211_chanctx_conf *ctx)
2257 hwsim_check_magic(vif);
2258 hwsim_check_chanctx_magic(ctx);
2263 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2264 struct ieee80211_vif *vif,
2265 struct ieee80211_chanctx_conf *ctx)
2267 hwsim_check_magic(vif);
2268 hwsim_check_chanctx_magic(ctx);
2271 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2282 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2284 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2285 struct ieee80211_vif *vif,
2288 if (sset == ETH_SS_STATS)
2289 memcpy(data, *mac80211_hwsim_gstrings_stats,
2290 sizeof(mac80211_hwsim_gstrings_stats));
2293 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2294 struct ieee80211_vif *vif, int sset)
2296 if (sset == ETH_SS_STATS)
2297 return MAC80211_HWSIM_SSTATS_LEN;
2301 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2302 struct ieee80211_vif *vif,
2303 struct ethtool_stats *stats, u64 *data)
2305 struct mac80211_hwsim_data *ar = hw->priv;
2308 data[i++] = ar->tx_pkts;
2309 data[i++] = ar->tx_bytes;
2310 data[i++] = ar->rx_pkts;
2311 data[i++] = ar->rx_bytes;
2312 data[i++] = ar->tx_dropped;
2313 data[i++] = ar->tx_failed;
2315 data[i++] = ar->group;
2317 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2320 #define HWSIM_COMMON_OPS \
2321 .tx = mac80211_hwsim_tx, \
2322 .start = mac80211_hwsim_start, \
2323 .stop = mac80211_hwsim_stop, \
2324 .add_interface = mac80211_hwsim_add_interface, \
2325 .change_interface = mac80211_hwsim_change_interface, \
2326 .remove_interface = mac80211_hwsim_remove_interface, \
2327 .config = mac80211_hwsim_config, \
2328 .configure_filter = mac80211_hwsim_configure_filter, \
2329 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2330 .sta_add = mac80211_hwsim_sta_add, \
2331 .sta_remove = mac80211_hwsim_sta_remove, \
2332 .sta_notify = mac80211_hwsim_sta_notify, \
2333 .set_tim = mac80211_hwsim_set_tim, \
2334 .conf_tx = mac80211_hwsim_conf_tx, \
2335 .get_survey = mac80211_hwsim_get_survey, \
2336 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2337 .ampdu_action = mac80211_hwsim_ampdu_action, \
2338 .flush = mac80211_hwsim_flush, \
2339 .get_tsf = mac80211_hwsim_get_tsf, \
2340 .set_tsf = mac80211_hwsim_set_tsf, \
2341 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2342 .get_et_stats = mac80211_hwsim_get_et_stats, \
2343 .get_et_strings = mac80211_hwsim_get_et_strings,
2345 static const struct ieee80211_ops mac80211_hwsim_ops = {
2347 .sw_scan_start = mac80211_hwsim_sw_scan,
2348 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2351 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2353 .hw_scan = mac80211_hwsim_hw_scan,
2354 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2355 .sw_scan_start = NULL,
2356 .sw_scan_complete = NULL,
2357 .remain_on_channel = mac80211_hwsim_roc,
2358 .cancel_remain_on_channel = mac80211_hwsim_croc,
2359 .add_chanctx = mac80211_hwsim_add_chanctx,
2360 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2361 .change_chanctx = mac80211_hwsim_change_chanctx,
2362 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2363 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2366 struct hwsim_new_radio_params {
2367 unsigned int channels;
2368 const char *reg_alpha2;
2369 const struct ieee80211_regdomain *regd;
2373 bool destroy_on_close;
2378 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2379 struct genl_info *info)
2382 genl_notify(&hwsim_genl_family, mcast_skb, info,
2383 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2385 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2386 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2389 static int append_radio_msg(struct sk_buff *skb, int id,
2390 struct hwsim_new_radio_params *param)
2394 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2398 if (param->channels) {
2399 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2404 if (param->reg_alpha2) {
2405 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2414 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2415 if (hwsim_world_regdom_custom[i] != param->regd)
2418 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2425 if (param->reg_strict) {
2426 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2431 if (param->p2p_device) {
2432 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2437 if (param->use_chanctx) {
2438 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2443 if (param->hwname) {
2444 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2445 strlen(param->hwname), param->hwname);
2453 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2454 struct hwsim_new_radio_params *param)
2456 struct sk_buff *mcast_skb;
2459 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2463 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2464 HWSIM_CMD_NEW_RADIO);
2468 if (append_radio_msg(mcast_skb, id, param) < 0)
2471 genlmsg_end(mcast_skb, data);
2473 hwsim_mcast_config_msg(mcast_skb, info);
2477 genlmsg_cancel(mcast_skb, data);
2478 nlmsg_free(mcast_skb);
2481 static int mac80211_hwsim_new_radio(struct genl_info *info,
2482 struct hwsim_new_radio_params *param)
2486 struct mac80211_hwsim_data *data;
2487 struct ieee80211_hw *hw;
2488 enum nl80211_band band;
2489 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2493 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2496 spin_lock_bh(&hwsim_radio_lock);
2497 idx = hwsim_radio_idx++;
2498 spin_unlock_bh(&hwsim_radio_lock);
2500 if (param->use_chanctx)
2501 ops = &mac80211_hwsim_mchan_ops;
2502 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2504 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2509 /* ieee80211_alloc_hw_nm may have used a default name */
2510 param->hwname = wiphy_name(hw->wiphy);
2513 net = genl_info_net(info);
2516 wiphy_net_set(hw->wiphy, net);
2521 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2522 if (IS_ERR(data->dev)) {
2524 "mac80211_hwsim: device_create failed (%ld)\n",
2525 PTR_ERR(data->dev));
2527 goto failed_drvdata;
2529 data->dev->driver = &mac80211_hwsim_driver.driver;
2530 err = device_bind_driver(data->dev);
2532 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2537 skb_queue_head_init(&data->pending);
2539 SET_IEEE80211_DEV(hw, data->dev);
2540 eth_zero_addr(addr);
2544 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2545 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2546 data->addresses[1].addr[0] |= 0x40;
2547 hw->wiphy->n_addresses = 2;
2548 hw->wiphy->addresses = data->addresses;
2550 data->channels = param->channels;
2551 data->use_chanctx = param->use_chanctx;
2553 data->destroy_on_close = param->destroy_on_close;
2555 data->portid = info->snd_portid;
2557 if (data->use_chanctx) {
2558 hw->wiphy->max_scan_ssids = 255;
2559 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2560 hw->wiphy->max_remain_on_channel_duration = 1000;
2561 hw->wiphy->iface_combinations = &data->if_combination;
2562 if (param->p2p_device)
2563 data->if_combination = hwsim_if_comb_p2p_dev[0];
2565 data->if_combination = hwsim_if_comb[0];
2566 hw->wiphy->n_iface_combinations = 1;
2567 /* For channels > 1 DFS is not allowed */
2568 data->if_combination.radar_detect_widths = 0;
2569 data->if_combination.num_different_channels = data->channels;
2570 } else if (param->p2p_device) {
2571 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2572 hw->wiphy->n_iface_combinations =
2573 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
2575 hw->wiphy->iface_combinations = hwsim_if_comb;
2576 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2579 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
2580 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2581 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2584 hw->offchannel_tx_hw_queue = 4;
2585 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2586 BIT(NL80211_IFTYPE_AP) |
2587 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2588 BIT(NL80211_IFTYPE_P2P_GO) |
2589 BIT(NL80211_IFTYPE_ADHOC) |
2590 BIT(NL80211_IFTYPE_MESH_POINT);
2592 if (param->p2p_device)
2593 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
2595 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2596 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2597 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2598 ieee80211_hw_set(hw, QUEUE_CONTROL);
2599 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2600 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2601 ieee80211_hw_set(hw, MFP_CAPABLE);
2602 ieee80211_hw_set(hw, SIGNAL_DBM);
2603 ieee80211_hw_set(hw, TDLS_WIDER_BW);
2605 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
2607 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2608 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2609 WIPHY_FLAG_AP_UAPSD |
2610 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2611 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2612 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2613 NL80211_FEATURE_STATIC_SMPS |
2614 NL80211_FEATURE_DYNAMIC_SMPS |
2615 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2616 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
2618 /* ask mac80211 to reserve space for magic */
2619 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2620 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2621 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2623 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2624 sizeof(hwsim_channels_2ghz));
2625 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2626 sizeof(hwsim_channels_5ghz));
2627 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2629 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
2630 struct ieee80211_supported_band *sband = &data->bands[band];
2632 case NL80211_BAND_2GHZ:
2633 sband->channels = data->channels_2ghz;
2634 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2635 sband->bitrates = data->rates;
2636 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2638 case NL80211_BAND_5GHZ:
2639 sband->channels = data->channels_5ghz;
2640 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2641 sband->bitrates = data->rates + 4;
2642 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2644 sband->vht_cap.vht_supported = true;
2645 sband->vht_cap.cap =
2646 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2647 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2648 IEEE80211_VHT_CAP_RXLDPC |
2649 IEEE80211_VHT_CAP_SHORT_GI_80 |
2650 IEEE80211_VHT_CAP_SHORT_GI_160 |
2651 IEEE80211_VHT_CAP_TXSTBC |
2652 IEEE80211_VHT_CAP_RXSTBC_4 |
2653 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2654 sband->vht_cap.vht_mcs.rx_mcs_map =
2655 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2656 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
2657 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2658 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2659 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
2660 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2661 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2662 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
2663 sband->vht_cap.vht_mcs.tx_mcs_map =
2664 sband->vht_cap.vht_mcs.rx_mcs_map;
2670 sband->ht_cap.ht_supported = true;
2671 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2672 IEEE80211_HT_CAP_GRN_FLD |
2673 IEEE80211_HT_CAP_SGI_20 |
2674 IEEE80211_HT_CAP_SGI_40 |
2675 IEEE80211_HT_CAP_DSSSCCK40;
2676 sband->ht_cap.ampdu_factor = 0x3;
2677 sband->ht_cap.ampdu_density = 0x6;
2678 memset(&sband->ht_cap.mcs, 0,
2679 sizeof(sband->ht_cap.mcs));
2680 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2681 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2682 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2684 hw->wiphy->bands[band] = sband;
2687 /* By default all radios belong to the first group */
2689 mutex_init(&data->mutex);
2691 data->netgroup = hwsim_net_get_netgroup(net);
2693 /* Enable frame retransmissions for lossy channels */
2695 hw->max_rate_tries = 11;
2697 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2698 hw->wiphy->n_vendor_commands =
2699 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2700 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2701 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2703 if (param->reg_strict)
2704 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2706 data->regd = param->regd;
2707 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2708 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
2709 /* give the regulatory workqueue a chance to run */
2710 schedule_timeout_interruptible(1);
2714 ieee80211_hw_set(hw, NO_AUTO_VIF);
2716 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2718 tasklet_hrtimer_init(&data->beacon_timer,
2719 mac80211_hwsim_beacon,
2720 CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
2722 err = ieee80211_register_hw(hw);
2724 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2729 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2731 if (param->reg_alpha2) {
2732 data->alpha2[0] = param->reg_alpha2[0];
2733 data->alpha2[1] = param->reg_alpha2[1];
2734 regulatory_hint(hw->wiphy, param->reg_alpha2);
2737 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2738 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2739 debugfs_create_file("group", 0666, data->debugfs, data,
2741 if (!data->use_chanctx)
2742 debugfs_create_file("dfs_simulate_radar", 0222,
2744 data, &hwsim_simulate_radar);
2746 spin_lock_bh(&hwsim_radio_lock);
2747 list_add_tail(&data->list, &hwsim_radios);
2748 spin_unlock_bh(&hwsim_radio_lock);
2750 hwsim_mcast_new_radio(idx, info, param);
2755 device_release_driver(data->dev);
2757 device_unregister(data->dev);
2759 ieee80211_free_hw(hw);
2764 static void hwsim_mcast_del_radio(int id, const char *hwname,
2765 struct genl_info *info)
2767 struct sk_buff *skb;
2771 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2775 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2776 HWSIM_CMD_DEL_RADIO);
2780 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2784 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2789 genlmsg_end(skb, data);
2791 hwsim_mcast_config_msg(skb, info);
2799 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2801 struct genl_info *info)
2803 hwsim_mcast_del_radio(data->idx, hwname, info);
2804 debugfs_remove_recursive(data->debugfs);
2805 ieee80211_unregister_hw(data->hw);
2806 device_release_driver(data->dev);
2807 device_unregister(data->dev);
2808 ieee80211_free_hw(data->hw);
2811 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2812 struct mac80211_hwsim_data *data,
2813 u32 portid, u32 seq,
2814 struct netlink_callback *cb, int flags)
2817 struct hwsim_new_radio_params param = { };
2818 int res = -EMSGSIZE;
2820 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2821 HWSIM_CMD_GET_RADIO);
2826 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2828 if (data->alpha2[0] && data->alpha2[1])
2829 param.reg_alpha2 = data->alpha2;
2831 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2832 REGULATORY_STRICT_REG);
2833 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2834 BIT(NL80211_IFTYPE_P2P_DEVICE));
2835 param.use_chanctx = data->use_chanctx;
2836 param.regd = data->regd;
2837 param.channels = data->channels;
2838 param.hwname = wiphy_name(data->hw->wiphy);
2840 res = append_radio_msg(skb, data->idx, ¶m);
2844 genlmsg_end(skb, hdr);
2848 genlmsg_cancel(skb, hdr);
2852 static void mac80211_hwsim_free(void)
2854 struct mac80211_hwsim_data *data;
2856 spin_lock_bh(&hwsim_radio_lock);
2857 while ((data = list_first_entry_or_null(&hwsim_radios,
2858 struct mac80211_hwsim_data,
2860 list_del(&data->list);
2861 spin_unlock_bh(&hwsim_radio_lock);
2862 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2864 spin_lock_bh(&hwsim_radio_lock);
2866 spin_unlock_bh(&hwsim_radio_lock);
2867 class_destroy(hwsim_class);
2870 static const struct net_device_ops hwsim_netdev_ops = {
2871 .ndo_start_xmit = hwsim_mon_xmit,
2872 .ndo_set_mac_address = eth_mac_addr,
2873 .ndo_validate_addr = eth_validate_addr,
2876 static void hwsim_mon_setup(struct net_device *dev)
2878 dev->netdev_ops = &hwsim_netdev_ops;
2879 dev->needs_free_netdev = true;
2881 dev->priv_flags |= IFF_NO_QUEUE;
2882 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2883 eth_zero_addr(dev->dev_addr);
2884 dev->dev_addr[0] = 0x12;
2887 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
2889 struct mac80211_hwsim_data *data;
2890 bool _found = false;
2892 spin_lock_bh(&hwsim_radio_lock);
2893 list_for_each_entry(data, &hwsim_radios, list) {
2894 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
2899 spin_unlock_bh(&hwsim_radio_lock);
2907 static void hwsim_register_wmediumd(struct net *net, u32 portid)
2909 struct mac80211_hwsim_data *data;
2911 hwsim_net_set_wmediumd(net, portid);
2913 spin_lock_bh(&hwsim_radio_lock);
2914 list_for_each_entry(data, &hwsim_radios, list) {
2915 if (data->netgroup == hwsim_net_get_netgroup(net))
2916 data->wmediumd = portid;
2918 spin_unlock_bh(&hwsim_radio_lock);
2921 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2922 struct genl_info *info)
2925 struct ieee80211_hdr *hdr;
2926 struct mac80211_hwsim_data *data2;
2927 struct ieee80211_tx_info *txi;
2928 struct hwsim_tx_rate *tx_attempts;
2930 struct sk_buff *skb, *tmp;
2932 unsigned int hwsim_flags;
2936 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
2937 !info->attrs[HWSIM_ATTR_FLAGS] ||
2938 !info->attrs[HWSIM_ATTR_COOKIE] ||
2939 !info->attrs[HWSIM_ATTR_SIGNAL] ||
2940 !info->attrs[HWSIM_ATTR_TX_INFO])
2943 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
2944 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
2945 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
2947 data2 = get_hwsim_data_ref_from_addr(src);
2951 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2954 if (info->snd_portid != data2->wmediumd)
2957 /* look for the skb matching the cookie passed back from user */
2958 skb_queue_walk_safe(&data2->pending, skb, tmp) {
2961 txi = IEEE80211_SKB_CB(skb);
2962 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2964 if (skb_cookie == ret_skb_cookie) {
2965 skb_unlink(skb, &data2->pending);
2975 /* Tx info received because the frame was broadcasted on user space,
2976 so we get all the necessary info: tx attempts and skb control buff */
2978 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2979 info->attrs[HWSIM_ATTR_TX_INFO]);
2981 /* now send back TX status */
2982 txi = IEEE80211_SKB_CB(skb);
2984 ieee80211_tx_info_clear_status(txi);
2986 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2987 txi->status.rates[i].idx = tx_attempts[i].idx;
2988 txi->status.rates[i].count = tx_attempts[i].count;
2989 /*txi->status.rates[i].flags = 0;*/
2992 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2994 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2995 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2996 if (skb->len >= 16) {
2997 hdr = (struct ieee80211_hdr *) skb->data;
2998 mac80211_hwsim_monitor_ack(data2->channel,
3001 txi->flags |= IEEE80211_TX_STAT_ACK;
3004 if (hwsim_flags & HWSIM_TX_CTL_NO_ACK)
3005 txi->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
3007 ieee80211_tx_status_irqsafe(data2->hw, skb);
3014 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
3015 struct genl_info *info)
3017 struct mac80211_hwsim_data *data2;
3018 struct ieee80211_rx_status rx_status;
3022 struct sk_buff *skb = NULL;
3024 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
3025 !info->attrs[HWSIM_ATTR_FRAME] ||
3026 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3027 !info->attrs[HWSIM_ATTR_SIGNAL])
3030 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
3031 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
3032 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
3034 /* Allocate new skb here */
3035 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3039 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
3043 skb_put_data(skb, frame_data, frame_data_len);
3045 data2 = get_hwsim_data_ref_from_addr(dst);
3049 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3052 if (info->snd_portid != data2->wmediumd)
3055 /* check if radio is configured properly */
3057 if (data2->idle || !data2->started)
3060 /* A frame is received from user space */
3061 memset(&rx_status, 0, sizeof(rx_status));
3062 if (info->attrs[HWSIM_ATTR_FREQ]) {
3063 /* throw away off-channel packets, but allow both the temporary
3064 * ("hw" scan/remain-on-channel) and regular channel, since the
3065 * internal datapath also allows this
3067 mutex_lock(&data2->mutex);
3068 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3070 if (rx_status.freq != data2->channel->center_freq &&
3071 (!data2->tmp_chan ||
3072 rx_status.freq != data2->tmp_chan->center_freq)) {
3073 mutex_unlock(&data2->mutex);
3076 mutex_unlock(&data2->mutex);
3078 rx_status.freq = data2->channel->center_freq;
3081 rx_status.band = data2->channel->band;
3082 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3083 if (rx_status.rate_idx >= data2->hw->wiphy->bands[rx_status.band]->n_bitrates)
3085 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3087 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
3089 data2->rx_bytes += skb->len;
3090 ieee80211_rx_irqsafe(data2->hw, skb);
3094 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
3100 static int hwsim_register_received_nl(struct sk_buff *skb_2,
3101 struct genl_info *info)
3103 struct net *net = genl_info_net(info);
3104 struct mac80211_hwsim_data *data;
3107 spin_lock_bh(&hwsim_radio_lock);
3108 list_for_each_entry(data, &hwsim_radios, list)
3109 chans = max(chans, data->channels);
3110 spin_unlock_bh(&hwsim_radio_lock);
3112 /* In the future we should revise the userspace API and allow it
3113 * to set a flag that it does support multi-channel, then we can
3114 * let this pass conditionally on the flag.
3115 * For current userspace, prohibit it since it won't work right.
3120 if (hwsim_net_get_wmediumd(net))
3123 hwsim_register_wmediumd(net, info->snd_portid);
3125 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
3126 "switching to wmediumd mode with pid %d\n", info->snd_portid);
3131 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
3133 struct hwsim_new_radio_params param = { 0 };
3134 const char *hwname = NULL;
3137 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3138 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3139 param.channels = channels;
3140 param.destroy_on_close =
3141 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
3143 if (info->attrs[HWSIM_ATTR_CHANNELS])
3144 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
3146 if (param.channels < 1) {
3147 GENL_SET_ERR_MSG(info, "must have at least one channel");
3151 if (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) {
3152 GENL_SET_ERR_MSG(info, "too many channels specified");
3156 if (info->attrs[HWSIM_ATTR_NO_VIF])
3157 param.no_vif = true;
3159 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3160 hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3161 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3165 param.hwname = hwname;
3168 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
3169 param.use_chanctx = true;
3171 param.use_chanctx = (param.channels > 1);
3173 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
3175 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
3177 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3178 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3180 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom)) {
3184 param.regd = hwsim_world_regdom_custom[idx];
3187 ret = mac80211_hwsim_new_radio(info, ¶m);
3192 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
3194 struct mac80211_hwsim_data *data;
3196 const char *hwname = NULL;
3198 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
3199 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3200 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3201 hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3202 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3209 spin_lock_bh(&hwsim_radio_lock);
3210 list_for_each_entry(data, &hwsim_radios, list) {
3212 if (data->idx != idx)
3216 strcmp(hwname, wiphy_name(data->hw->wiphy)))
3220 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3223 list_del(&data->list);
3224 spin_unlock_bh(&hwsim_radio_lock);
3225 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3230 spin_unlock_bh(&hwsim_radio_lock);
3236 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3238 struct mac80211_hwsim_data *data;
3239 struct sk_buff *skb;
3240 int idx, res = -ENODEV;
3242 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3244 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3246 spin_lock_bh(&hwsim_radio_lock);
3247 list_for_each_entry(data, &hwsim_radios, list) {
3248 if (data->idx != idx)
3251 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3254 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
3260 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3261 info->snd_seq, NULL, 0);
3267 res = genlmsg_reply(skb, info);
3272 spin_unlock_bh(&hwsim_radio_lock);
3277 static int hwsim_dump_radio_nl(struct sk_buff *skb,
3278 struct netlink_callback *cb)
3280 int idx = cb->args[0];
3281 struct mac80211_hwsim_data *data = NULL;
3284 spin_lock_bh(&hwsim_radio_lock);
3286 if (idx == hwsim_radio_idx)
3289 list_for_each_entry(data, &hwsim_radios, list) {
3290 if (data->idx < idx)
3293 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3296 res = mac80211_hwsim_get_radio(skb, data,
3297 NETLINK_CB(cb->skb).portid,
3298 cb->nlh->nlmsg_seq, cb,
3303 idx = data->idx + 1;
3309 spin_unlock_bh(&hwsim_radio_lock);
3313 /* Generic Netlink operations array */
3314 static const struct genl_ops hwsim_ops[] = {
3316 .cmd = HWSIM_CMD_REGISTER,
3317 .policy = hwsim_genl_policy,
3318 .doit = hwsim_register_received_nl,
3319 .flags = GENL_UNS_ADMIN_PERM,
3322 .cmd = HWSIM_CMD_FRAME,
3323 .policy = hwsim_genl_policy,
3324 .doit = hwsim_cloned_frame_received_nl,
3327 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3328 .policy = hwsim_genl_policy,
3329 .doit = hwsim_tx_info_frame_received_nl,
3332 .cmd = HWSIM_CMD_NEW_RADIO,
3333 .policy = hwsim_genl_policy,
3334 .doit = hwsim_new_radio_nl,
3335 .flags = GENL_UNS_ADMIN_PERM,
3338 .cmd = HWSIM_CMD_DEL_RADIO,
3339 .policy = hwsim_genl_policy,
3340 .doit = hwsim_del_radio_nl,
3341 .flags = GENL_UNS_ADMIN_PERM,
3344 .cmd = HWSIM_CMD_GET_RADIO,
3345 .policy = hwsim_genl_policy,
3346 .doit = hwsim_get_radio_nl,
3347 .dumpit = hwsim_dump_radio_nl,
3351 static struct genl_family hwsim_genl_family __ro_after_init = {
3352 .name = "MAC80211_HWSIM",
3354 .maxattr = HWSIM_ATTR_MAX,
3356 .module = THIS_MODULE,
3358 .n_ops = ARRAY_SIZE(hwsim_ops),
3359 .mcgrps = hwsim_mcgrps,
3360 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3363 static void destroy_radio(struct work_struct *work)
3365 struct mac80211_hwsim_data *data =
3366 container_of(work, struct mac80211_hwsim_data, destroy_work);
3368 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
3371 static void remove_user_radios(u32 portid)
3373 struct mac80211_hwsim_data *entry, *tmp;
3375 spin_lock_bh(&hwsim_radio_lock);
3376 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3377 if (entry->destroy_on_close && entry->portid == portid) {
3378 list_del(&entry->list);
3379 INIT_WORK(&entry->destroy_work, destroy_radio);
3380 schedule_work(&entry->destroy_work);
3383 spin_unlock_bh(&hwsim_radio_lock);
3386 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3387 unsigned long state,
3390 struct netlink_notify *notify = _notify;
3392 if (state != NETLINK_URELEASE)
3395 remove_user_radios(notify->portid);
3397 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
3398 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3399 " socket, switching to perfect channel medium\n");
3400 hwsim_register_wmediumd(notify->net, 0);
3406 static struct notifier_block hwsim_netlink_notifier = {
3407 .notifier_call = mac80211_hwsim_netlink_notify,
3410 static int __init hwsim_init_netlink(void)
3414 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3416 rc = genl_register_family(&hwsim_genl_family);
3420 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3422 genl_unregister_family(&hwsim_genl_family);
3429 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
3433 static __net_init int hwsim_init_net(struct net *net)
3435 hwsim_net_set_netgroup(net);
3440 static void __net_exit hwsim_exit_net(struct net *net)
3442 struct mac80211_hwsim_data *data, *tmp;
3444 spin_lock_bh(&hwsim_radio_lock);
3445 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3446 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3449 /* Radios created in init_net are returned to init_net. */
3450 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3453 list_del(&data->list);
3454 spin_unlock_bh(&hwsim_radio_lock);
3455 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3457 spin_lock_bh(&hwsim_radio_lock);
3460 spin_unlock_bh(&hwsim_radio_lock);
3463 static struct pernet_operations hwsim_net_ops = {
3464 .init = hwsim_init_net,
3465 .exit = hwsim_exit_net,
3466 .id = &hwsim_net_id,
3467 .size = sizeof(struct hwsim_net),
3470 static void hwsim_exit_netlink(void)
3472 /* unregister the notifier */
3473 netlink_unregister_notifier(&hwsim_netlink_notifier);
3474 /* unregister the family */
3475 genl_unregister_family(&hwsim_genl_family);
3478 static int __init init_mac80211_hwsim(void)
3482 if (radios < 0 || radios > 100)
3488 spin_lock_init(&hwsim_radio_lock);
3490 err = register_pernet_device(&hwsim_net_ops);
3494 err = platform_driver_register(&mac80211_hwsim_driver);
3496 goto out_unregister_pernet;
3498 err = hwsim_init_netlink();
3500 goto out_unregister_driver;
3502 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3503 if (IS_ERR(hwsim_class)) {
3504 err = PTR_ERR(hwsim_class);
3505 goto out_exit_netlink;
3508 for (i = 0; i < radios; i++) {
3509 struct hwsim_new_radio_params param = { 0 };
3511 param.channels = channels;
3514 case HWSIM_REGTEST_DIFF_COUNTRY:
3515 if (i < ARRAY_SIZE(hwsim_alpha2s))
3516 param.reg_alpha2 = hwsim_alpha2s[i];
3518 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3520 param.reg_alpha2 = hwsim_alpha2s[0];
3522 case HWSIM_REGTEST_STRICT_ALL:
3523 param.reg_strict = true;
3524 case HWSIM_REGTEST_DRIVER_REG_ALL:
3525 param.reg_alpha2 = hwsim_alpha2s[0];
3527 case HWSIM_REGTEST_WORLD_ROAM:
3529 param.regd = &hwsim_world_regdom_custom_01;
3531 case HWSIM_REGTEST_CUSTOM_WORLD:
3532 param.regd = &hwsim_world_regdom_custom_01;
3534 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3536 param.regd = &hwsim_world_regdom_custom_01;
3538 param.regd = &hwsim_world_regdom_custom_02;
3540 case HWSIM_REGTEST_STRICT_FOLLOW:
3542 param.reg_strict = true;
3543 param.reg_alpha2 = hwsim_alpha2s[0];
3546 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
3548 param.reg_strict = true;
3549 param.reg_alpha2 = hwsim_alpha2s[0];
3550 } else if (i == 1) {
3551 param.reg_alpha2 = hwsim_alpha2s[1];
3554 case HWSIM_REGTEST_ALL:
3557 param.regd = &hwsim_world_regdom_custom_01;
3560 param.regd = &hwsim_world_regdom_custom_02;
3563 param.reg_alpha2 = hwsim_alpha2s[0];
3566 param.reg_alpha2 = hwsim_alpha2s[1];
3569 param.reg_strict = true;
3570 param.reg_alpha2 = hwsim_alpha2s[2];
3578 param.p2p_device = support_p2p_device;
3579 param.use_chanctx = channels > 1;
3581 err = mac80211_hwsim_new_radio(NULL, ¶m);
3583 goto out_free_radios;
3586 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3588 if (hwsim_mon == NULL) {
3590 goto out_free_radios;
3594 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3597 goto out_free_radios;
3600 err = register_netdevice(hwsim_mon);
3610 free_netdev(hwsim_mon);
3612 mac80211_hwsim_free();
3614 hwsim_exit_netlink();
3615 out_unregister_driver:
3616 platform_driver_unregister(&mac80211_hwsim_driver);
3617 out_unregister_pernet:
3618 unregister_pernet_device(&hwsim_net_ops);
3621 module_init(init_mac80211_hwsim);
3623 static void __exit exit_mac80211_hwsim(void)
3625 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
3627 hwsim_exit_netlink();
3629 mac80211_hwsim_free();
3630 unregister_netdev(hwsim_mon);
3631 platform_driver_unregister(&mac80211_hwsim_driver);
3632 unregister_pernet_device(&hwsim_net_ops);
3634 module_exit(exit_mac80211_hwsim);