1 // SPDX-License-Identifier: GPL-2.0-only
3 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
4 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
5 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
7 * Copyright (C) 2018 Intel Corporation
12 * - Add TSF sync and fix IBSS beacon transmission by adding
13 * competition for "air time" at TBTT
14 * - RX filtering based on filter configuration (data->rx_filter)
17 #include <linux/list.h>
18 #include <linux/slab.h>
19 #include <linux/spinlock.h>
22 #include <net/mac80211.h>
23 #include <net/ieee80211_radiotap.h>
24 #include <linux/if_arp.h>
25 #include <linux/rtnetlink.h>
26 #include <linux/etherdevice.h>
27 #include <linux/platform_device.h>
28 #include <linux/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include <net/net_namespace.h>
33 #include <net/netns/generic.h>
34 #include <linux/rhashtable.h>
35 #include <linux/nospec.h>
36 #include "mac80211_hwsim.h"
38 #define WARN_QUEUE 100
41 MODULE_AUTHOR("Jouni Malinen");
42 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
43 MODULE_LICENSE("GPL");
45 static int radios = 2;
46 module_param(radios, int, 0444);
47 MODULE_PARM_DESC(radios, "Number of simulated radios");
49 static int channels = 1;
50 module_param(channels, int, 0444);
51 MODULE_PARM_DESC(channels, "Number of concurrent channels");
53 static bool paged_rx = false;
54 module_param(paged_rx, bool, 0644);
55 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
57 static bool rctbl = false;
58 module_param(rctbl, bool, 0444);
59 MODULE_PARM_DESC(rctbl, "Handle rate control table");
61 static bool support_p2p_device = true;
62 module_param(support_p2p_device, bool, 0444);
63 MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
66 * enum hwsim_regtest - the type of regulatory tests we offer
68 * These are the different values you can use for the regtest
69 * module parameter. This is useful to help test world roaming
70 * and the driver regulatory_hint() call and combinations of these.
71 * If you want to do specific alpha2 regulatory domain tests simply
72 * use the userspace regulatory request as that will be respected as
73 * well without the need of this module parameter. This is designed
74 * only for testing the driver regulatory request, world roaming
75 * and all possible combinations.
77 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
78 * this is the default value.
79 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
80 * hint, only one driver regulatory hint will be sent as such the
81 * secondary radios are expected to follow.
82 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
83 * request with all radios reporting the same regulatory domain.
84 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
85 * different regulatory domains requests. Expected behaviour is for
86 * an intersection to occur but each device will still use their
87 * respective regulatory requested domains. Subsequent radios will
88 * use the resulting intersection.
89 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
90 * this by using a custom beacon-capable regulatory domain for the first
91 * radio. All other device world roam.
92 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
93 * domain requests. All radios will adhere to this custom world regulatory
95 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
96 * domain requests. The first radio will adhere to the first custom world
97 * regulatory domain, the second one to the second custom world regulatory
98 * domain. All other devices will world roam.
99 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
100 * settings, only the first radio will send a regulatory domain request
101 * and use strict settings. The rest of the radios are expected to follow.
102 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
103 * settings. All radios will adhere to this.
104 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
105 * domain settings, combined with secondary driver regulatory domain
106 * settings. The first radio will get a strict regulatory domain setting
107 * using the first driver regulatory request and the second radio will use
108 * non-strict settings using the second driver regulatory request. All
109 * other devices should follow the intersection created between the
111 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
112 * at least 6 radios for a complete test. We will test in this order:
113 * 1 - driver custom world regulatory domain
114 * 2 - second custom world regulatory domain
115 * 3 - first driver regulatory domain request
116 * 4 - second driver regulatory domain request
117 * 5 - strict regulatory domain settings using the third driver regulatory
119 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
120 * regulatory requests.
123 HWSIM_REGTEST_DISABLED = 0,
124 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
125 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
126 HWSIM_REGTEST_DIFF_COUNTRY = 3,
127 HWSIM_REGTEST_WORLD_ROAM = 4,
128 HWSIM_REGTEST_CUSTOM_WORLD = 5,
129 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
130 HWSIM_REGTEST_STRICT_FOLLOW = 7,
131 HWSIM_REGTEST_STRICT_ALL = 8,
132 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
133 HWSIM_REGTEST_ALL = 10,
136 /* Set to one of the HWSIM_REGTEST_* values above */
137 static int regtest = HWSIM_REGTEST_DISABLED;
138 module_param(regtest, int, 0444);
139 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
141 static const char *hwsim_alpha2s[] = {
150 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
154 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
155 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
156 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
157 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
161 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
165 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
166 REG_RULE(5725-10, 5850+10, 40, 0, 30,
171 static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
172 &hwsim_world_regdom_custom_01,
173 &hwsim_world_regdom_custom_02,
176 struct hwsim_vif_priv {
184 #define HWSIM_VIF_MAGIC 0x69537748
186 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
188 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
189 WARN(vp->magic != HWSIM_VIF_MAGIC,
190 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
191 vif, vp->magic, vif->addr, vif->type, vif->p2p);
194 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
196 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
197 vp->magic = HWSIM_VIF_MAGIC;
200 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
202 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
206 struct hwsim_sta_priv {
210 #define HWSIM_STA_MAGIC 0x6d537749
212 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
214 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
215 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
218 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
220 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
221 sp->magic = HWSIM_STA_MAGIC;
224 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
226 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
230 struct hwsim_chanctx_priv {
234 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
236 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
238 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
239 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
242 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
244 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
245 cp->magic = HWSIM_CHANCTX_MAGIC;
248 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
250 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
254 static unsigned int hwsim_net_id;
256 static DEFINE_IDA(hwsim_netgroup_ida);
263 static inline int hwsim_net_get_netgroup(struct net *net)
265 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
267 return hwsim_net->netgroup;
270 static inline int hwsim_net_set_netgroup(struct net *net)
272 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
274 hwsim_net->netgroup = ida_simple_get(&hwsim_netgroup_ida,
276 return hwsim_net->netgroup >= 0 ? 0 : -ENOMEM;
279 static inline u32 hwsim_net_get_wmediumd(struct net *net)
281 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
283 return hwsim_net->wmediumd;
286 static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
288 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
290 hwsim_net->wmediumd = portid;
293 static struct class *hwsim_class;
295 static struct net_device *hwsim_mon; /* global monitor netdev */
297 #define CHAN2G(_freq) { \
298 .band = NL80211_BAND_2GHZ, \
299 .center_freq = (_freq), \
300 .hw_value = (_freq), \
304 #define CHAN5G(_freq) { \
305 .band = NL80211_BAND_5GHZ, \
306 .center_freq = (_freq), \
307 .hw_value = (_freq), \
311 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
312 CHAN2G(2412), /* Channel 1 */
313 CHAN2G(2417), /* Channel 2 */
314 CHAN2G(2422), /* Channel 3 */
315 CHAN2G(2427), /* Channel 4 */
316 CHAN2G(2432), /* Channel 5 */
317 CHAN2G(2437), /* Channel 6 */
318 CHAN2G(2442), /* Channel 7 */
319 CHAN2G(2447), /* Channel 8 */
320 CHAN2G(2452), /* Channel 9 */
321 CHAN2G(2457), /* Channel 10 */
322 CHAN2G(2462), /* Channel 11 */
323 CHAN2G(2467), /* Channel 12 */
324 CHAN2G(2472), /* Channel 13 */
325 CHAN2G(2484), /* Channel 14 */
328 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
329 CHAN5G(5180), /* Channel 36 */
330 CHAN5G(5200), /* Channel 40 */
331 CHAN5G(5220), /* Channel 44 */
332 CHAN5G(5240), /* Channel 48 */
334 CHAN5G(5260), /* Channel 52 */
335 CHAN5G(5280), /* Channel 56 */
336 CHAN5G(5300), /* Channel 60 */
337 CHAN5G(5320), /* Channel 64 */
339 CHAN5G(5500), /* Channel 100 */
340 CHAN5G(5520), /* Channel 104 */
341 CHAN5G(5540), /* Channel 108 */
342 CHAN5G(5560), /* Channel 112 */
343 CHAN5G(5580), /* Channel 116 */
344 CHAN5G(5600), /* Channel 120 */
345 CHAN5G(5620), /* Channel 124 */
346 CHAN5G(5640), /* Channel 128 */
347 CHAN5G(5660), /* Channel 132 */
348 CHAN5G(5680), /* Channel 136 */
349 CHAN5G(5700), /* Channel 140 */
351 CHAN5G(5745), /* Channel 149 */
352 CHAN5G(5765), /* Channel 153 */
353 CHAN5G(5785), /* Channel 157 */
354 CHAN5G(5805), /* Channel 161 */
355 CHAN5G(5825), /* Channel 165 */
356 CHAN5G(5845), /* Channel 169 */
359 static const struct ieee80211_rate hwsim_rates[] = {
361 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
362 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
363 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
374 static const u32 hwsim_ciphers[] = {
375 WLAN_CIPHER_SUITE_WEP40,
376 WLAN_CIPHER_SUITE_WEP104,
377 WLAN_CIPHER_SUITE_TKIP,
378 WLAN_CIPHER_SUITE_CCMP,
379 WLAN_CIPHER_SUITE_CCMP_256,
380 WLAN_CIPHER_SUITE_GCMP,
381 WLAN_CIPHER_SUITE_GCMP_256,
382 WLAN_CIPHER_SUITE_AES_CMAC,
383 WLAN_CIPHER_SUITE_BIP_CMAC_256,
384 WLAN_CIPHER_SUITE_BIP_GMAC_128,
385 WLAN_CIPHER_SUITE_BIP_GMAC_256,
388 #define OUI_QCA 0x001374
389 #define QCA_NL80211_SUBCMD_TEST 1
390 enum qca_nl80211_vendor_subcmds {
391 QCA_WLAN_VENDOR_ATTR_TEST = 8,
392 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
395 static const struct nla_policy
396 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
397 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
400 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
401 struct wireless_dev *wdev,
402 const void *data, int data_len)
405 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
409 err = nla_parse_deprecated(tb, QCA_WLAN_VENDOR_ATTR_MAX, data,
410 data_len, hwsim_vendor_test_policy, NULL);
413 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
415 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
416 wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);
418 /* Send a vendor event as a test. Note that this would not normally be
419 * done within a command handler, but rather, based on some other
420 * trigger. For simplicity, this command is used to trigger the event
423 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
425 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
427 /* skb_put() or nla_put() will fill up data within
428 * NL80211_ATTR_VENDOR_DATA.
431 /* Add vendor data */
432 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
434 /* Send the event - this will call nla_nest_end() */
435 cfg80211_vendor_event(skb, GFP_KERNEL);
438 /* Send a response to the command */
439 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
443 /* skb_put() or nla_put() will fill up data within
444 * NL80211_ATTR_VENDOR_DATA
446 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
448 return cfg80211_vendor_cmd_reply(skb);
451 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
453 .info = { .vendor_id = OUI_QCA,
454 .subcmd = QCA_NL80211_SUBCMD_TEST },
455 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
456 .doit = mac80211_hwsim_vendor_cmd_test,
457 .policy = hwsim_vendor_test_policy,
458 .maxattr = QCA_WLAN_VENDOR_ATTR_MAX,
462 /* Advertise support vendor specific events */
463 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
464 { .vendor_id = OUI_QCA, .subcmd = 1 },
467 static spinlock_t hwsim_radio_lock;
468 static LIST_HEAD(hwsim_radios);
469 static struct rhashtable hwsim_radios_rht;
470 static int hwsim_radio_idx;
471 static int hwsim_radios_generation = 1;
473 static struct platform_driver mac80211_hwsim_driver = {
475 .name = "mac80211_hwsim",
479 struct mac80211_hwsim_data {
480 struct list_head list;
481 struct rhash_head rht;
482 struct ieee80211_hw *hw;
484 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
485 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
486 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
487 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
488 struct ieee80211_iface_combination if_combination;
489 struct ieee80211_iface_limit if_limits[3];
492 u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
494 struct mac_address addresses[2];
497 bool destroy_on_close;
500 const struct ieee80211_regdomain *regd;
502 struct ieee80211_channel *tmp_chan;
503 struct ieee80211_channel *roc_chan;
505 struct delayed_work roc_start;
506 struct delayed_work roc_done;
507 struct delayed_work hw_scan;
508 struct cfg80211_scan_request *hw_scan_request;
509 struct ieee80211_vif *hw_scan_vif;
511 u8 scan_addr[ETH_ALEN];
513 struct ieee80211_channel *channel;
514 unsigned long next_start, start, end;
515 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
516 ARRAY_SIZE(hwsim_channels_5ghz)];
518 struct ieee80211_channel *channel;
519 u64 beacon_int /* beacon interval in us */;
520 unsigned int rx_filter;
521 bool started, idle, scanning;
523 struct hrtimer beacon_timer;
525 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
527 bool ps_poll_pending;
528 struct dentry *debugfs;
530 uintptr_t pending_cookie;
531 struct sk_buff_head pending; /* packets pending */
533 * Only radios in the same group can communicate together (the
534 * channel has to match too). Each bit represents a group. A
535 * radio can be in more than one group.
539 /* group shared by radios created in the same netns */
541 /* wmediumd portid responsible for netgroup of this radio */
544 /* difference between this hw's clock and the real clock, in usecs */
547 /* absolute beacon transmission time. Used to cover up "tx" delay. */
559 static const struct rhashtable_params hwsim_rht_params = {
561 .automatic_shrinking = true,
563 .key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
564 .head_offset = offsetof(struct mac80211_hwsim_data, rht),
567 struct hwsim_radiotap_hdr {
568 struct ieee80211_radiotap_header hdr;
576 struct hwsim_radiotap_ack_hdr {
577 struct ieee80211_radiotap_header hdr;
584 /* MAC80211_HWSIM netlink family */
585 static struct genl_family hwsim_genl_family;
587 enum hwsim_multicast_groups {
591 static const struct genl_multicast_group hwsim_mcgrps[] = {
592 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
595 /* MAC80211_HWSIM netlink policy */
597 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
598 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
599 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
600 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
601 .len = IEEE80211_MAX_DATA_LEN },
602 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
603 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
604 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
605 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
606 .len = IEEE80211_TX_MAX_RATES *
607 sizeof(struct hwsim_tx_rate)},
608 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
609 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
610 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
611 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
612 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
613 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
614 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
615 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
616 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
617 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
618 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
619 [HWSIM_ATTR_PERM_ADDR] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
620 [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
621 [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
624 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
626 struct ieee80211_channel *chan);
628 /* sysfs attributes */
629 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
631 struct mac80211_hwsim_data *data = dat;
632 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
634 struct ieee80211_pspoll *pspoll;
639 wiphy_dbg(data->hw->wiphy,
640 "%s: send PS-Poll to %pM for aid %d\n",
641 __func__, vp->bssid, vp->aid);
643 skb = dev_alloc_skb(sizeof(*pspoll));
646 pspoll = skb_put(skb, sizeof(*pspoll));
647 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
648 IEEE80211_STYPE_PSPOLL |
650 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
651 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
652 memcpy(pspoll->ta, mac, ETH_ALEN);
655 mac80211_hwsim_tx_frame(data->hw, skb,
656 rcu_dereference(vif->chanctx_conf)->def.chan);
660 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
661 struct ieee80211_vif *vif, int ps)
663 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
665 struct ieee80211_hdr *hdr;
670 wiphy_dbg(data->hw->wiphy,
671 "%s: send data::nullfunc to %pM ps=%d\n",
672 __func__, vp->bssid, ps);
674 skb = dev_alloc_skb(sizeof(*hdr));
677 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
678 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
679 IEEE80211_STYPE_NULLFUNC |
680 IEEE80211_FCTL_TODS |
681 (ps ? IEEE80211_FCTL_PM : 0));
682 hdr->duration_id = cpu_to_le16(0);
683 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
684 memcpy(hdr->addr2, mac, ETH_ALEN);
685 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
688 mac80211_hwsim_tx_frame(data->hw, skb,
689 rcu_dereference(vif->chanctx_conf)->def.chan);
694 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
695 struct ieee80211_vif *vif)
697 struct mac80211_hwsim_data *data = dat;
698 hwsim_send_nullfunc(data, mac, vif, 1);
701 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
702 struct ieee80211_vif *vif)
704 struct mac80211_hwsim_data *data = dat;
705 hwsim_send_nullfunc(data, mac, vif, 0);
708 static int hwsim_fops_ps_read(void *dat, u64 *val)
710 struct mac80211_hwsim_data *data = dat;
715 static int hwsim_fops_ps_write(void *dat, u64 val)
717 struct mac80211_hwsim_data *data = dat;
720 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
721 val != PS_MANUAL_POLL)
724 if (val == PS_MANUAL_POLL) {
725 if (data->ps != PS_ENABLED)
728 ieee80211_iterate_active_interfaces_atomic(
729 data->hw, IEEE80211_IFACE_ITER_NORMAL,
730 hwsim_send_ps_poll, data);
738 if (old_ps == PS_DISABLED && val != PS_DISABLED) {
739 ieee80211_iterate_active_interfaces_atomic(
740 data->hw, IEEE80211_IFACE_ITER_NORMAL,
741 hwsim_send_nullfunc_ps, data);
742 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
743 ieee80211_iterate_active_interfaces_atomic(
744 data->hw, IEEE80211_IFACE_ITER_NORMAL,
745 hwsim_send_nullfunc_no_ps, data);
752 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
755 static int hwsim_write_simulate_radar(void *dat, u64 val)
757 struct mac80211_hwsim_data *data = dat;
759 ieee80211_radar_detected(data->hw);
764 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
765 hwsim_write_simulate_radar, "%llu\n");
767 static int hwsim_fops_group_read(void *dat, u64 *val)
769 struct mac80211_hwsim_data *data = dat;
774 static int hwsim_fops_group_write(void *dat, u64 val)
776 struct mac80211_hwsim_data *data = dat;
781 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
782 hwsim_fops_group_read, hwsim_fops_group_write,
785 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
786 struct net_device *dev)
788 /* TODO: allow packet injection */
793 static inline u64 mac80211_hwsim_get_tsf_raw(void)
795 return ktime_to_us(ktime_get_real());
798 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
800 u64 now = mac80211_hwsim_get_tsf_raw();
801 return cpu_to_le64(now + data->tsf_offset);
804 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
805 struct ieee80211_vif *vif)
807 struct mac80211_hwsim_data *data = hw->priv;
808 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
811 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
812 struct ieee80211_vif *vif, u64 tsf)
814 struct mac80211_hwsim_data *data = hw->priv;
815 u64 now = mac80211_hwsim_get_tsf(hw, vif);
816 u32 bcn_int = data->beacon_int;
817 u64 delta = abs(tsf - now);
819 /* adjust after beaconing with new timestamp at old TBTT */
821 data->tsf_offset += delta;
822 data->bcn_delta = do_div(delta, bcn_int);
824 data->tsf_offset -= delta;
825 data->bcn_delta = -(s64)do_div(delta, bcn_int);
829 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
830 struct sk_buff *tx_skb,
831 struct ieee80211_channel *chan)
833 struct mac80211_hwsim_data *data = hw->priv;
835 struct hwsim_radiotap_hdr *hdr;
837 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
838 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
840 if (WARN_ON(!txrate))
843 if (!netif_running(hwsim_mon))
846 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
850 hdr = skb_push(skb, sizeof(*hdr));
851 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
853 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
854 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
855 (1 << IEEE80211_RADIOTAP_RATE) |
856 (1 << IEEE80211_RADIOTAP_TSFT) |
857 (1 << IEEE80211_RADIOTAP_CHANNEL));
858 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
860 hdr->rt_rate = txrate->bitrate / 5;
861 hdr->rt_channel = cpu_to_le16(chan->center_freq);
862 flags = IEEE80211_CHAN_2GHZ;
863 if (txrate->flags & IEEE80211_RATE_ERP_G)
864 flags |= IEEE80211_CHAN_OFDM;
866 flags |= IEEE80211_CHAN_CCK;
867 hdr->rt_chbitmask = cpu_to_le16(flags);
869 skb->dev = hwsim_mon;
870 skb_reset_mac_header(skb);
871 skb->ip_summed = CHECKSUM_UNNECESSARY;
872 skb->pkt_type = PACKET_OTHERHOST;
873 skb->protocol = htons(ETH_P_802_2);
874 memset(skb->cb, 0, sizeof(skb->cb));
879 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
883 struct hwsim_radiotap_ack_hdr *hdr;
885 struct ieee80211_hdr *hdr11;
887 if (!netif_running(hwsim_mon))
890 skb = dev_alloc_skb(100);
894 hdr = skb_put(skb, sizeof(*hdr));
895 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
897 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
898 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
899 (1 << IEEE80211_RADIOTAP_CHANNEL));
902 hdr->rt_channel = cpu_to_le16(chan->center_freq);
903 flags = IEEE80211_CHAN_2GHZ;
904 hdr->rt_chbitmask = cpu_to_le16(flags);
906 hdr11 = skb_put(skb, 10);
907 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
908 IEEE80211_STYPE_ACK);
909 hdr11->duration_id = cpu_to_le16(0);
910 memcpy(hdr11->addr1, addr, ETH_ALEN);
912 skb->dev = hwsim_mon;
913 skb_reset_mac_header(skb);
914 skb->ip_summed = CHECKSUM_UNNECESSARY;
915 skb->pkt_type = PACKET_OTHERHOST;
916 skb->protocol = htons(ETH_P_802_2);
917 memset(skb->cb, 0, sizeof(skb->cb));
921 struct mac80211_hwsim_addr_match_data {
926 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
927 struct ieee80211_vif *vif)
929 struct mac80211_hwsim_addr_match_data *md = data;
931 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
935 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
938 struct mac80211_hwsim_addr_match_data md = {
942 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
945 memcpy(md.addr, addr, ETH_ALEN);
947 ieee80211_iterate_active_interfaces_atomic(data->hw,
948 IEEE80211_IFACE_ITER_NORMAL,
949 mac80211_hwsim_addr_iter,
955 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
964 /* TODO: accept (some) Beacons by default and other frames only
965 * if pending PS-Poll has been sent */
968 /* Allow unicast frames to own address if there is a pending
970 if (data->ps_poll_pending &&
971 mac80211_hwsim_addr_match(data, skb->data + 4)) {
972 data->ps_poll_pending = false;
981 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
982 struct sk_buff *skb, int portid)
989 for_each_net_rcu(net) {
990 if (data->netgroup == hwsim_net_get_netgroup(net)) {
991 res = genlmsg_unicast(net, skb, portid);
1004 static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1008 if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1009 result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1010 if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1011 result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1012 if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1013 result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1014 if (rate->flags & IEEE80211_TX_RC_MCS)
1015 result |= MAC80211_HWSIM_TX_RC_MCS;
1016 if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1017 result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1018 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1019 result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1020 if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1021 result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1022 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1023 result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1024 if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1025 result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1026 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1027 result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1028 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1029 result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1034 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1035 struct sk_buff *my_skb,
1038 struct sk_buff *skb;
1039 struct mac80211_hwsim_data *data = hw->priv;
1040 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1041 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1043 unsigned int hwsim_flags = 0;
1045 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1046 struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
1049 if (data->ps != PS_DISABLED)
1050 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1051 /* If the queue contains MAX_QUEUE skb's drop some */
1052 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1053 /* Droping until WARN_QUEUE level */
1054 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1055 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1060 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1062 goto nla_put_failure;
1064 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1066 if (msg_head == NULL) {
1067 pr_debug("mac80211_hwsim: problem with msg_head\n");
1068 goto nla_put_failure;
1071 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1072 ETH_ALEN, data->addresses[1].addr))
1073 goto nla_put_failure;
1075 /* We get the skb->data */
1076 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1077 goto nla_put_failure;
1079 /* We get the flags for this transmission, and we translate them to
1082 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1083 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1085 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1086 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1088 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1089 goto nla_put_failure;
1091 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1092 goto nla_put_failure;
1094 /* We get the tx control (rate and retries) info*/
1096 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1097 tx_attempts[i].idx = info->status.rates[i].idx;
1098 tx_attempts_flags[i].idx = info->status.rates[i].idx;
1099 tx_attempts[i].count = info->status.rates[i].count;
1100 tx_attempts_flags[i].flags =
1101 trans_tx_rate_flags_ieee2hwsim(
1102 &info->status.rates[i]);
1105 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1106 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1108 goto nla_put_failure;
1110 if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1111 sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1113 goto nla_put_failure;
1115 /* We create a cookie to identify this skb */
1116 data->pending_cookie++;
1117 cookie = data->pending_cookie;
1118 info->rate_driver_data[0] = (void *)cookie;
1119 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1120 goto nla_put_failure;
1122 genlmsg_end(skb, msg_head);
1123 if (hwsim_unicast_netgroup(data, skb, dst_portid))
1124 goto err_free_txskb;
1126 /* Enqueue the packet */
1127 skb_queue_tail(&data->pending, my_skb);
1129 data->tx_bytes += my_skb->len;
1135 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
1136 ieee80211_free_txskb(hw, my_skb);
1140 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1141 struct ieee80211_channel *c2)
1146 return c1->center_freq == c2->center_freq;
1149 struct tx_iter_data {
1150 struct ieee80211_channel *channel;
1154 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1155 struct ieee80211_vif *vif)
1157 struct tx_iter_data *data = _data;
1159 if (!vif->chanctx_conf)
1162 if (!hwsim_chans_compat(data->channel,
1163 rcu_dereference(vif->chanctx_conf)->def.chan))
1166 data->receive = true;
1169 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1172 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1174 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1175 * (but you should use a valid OUI, not that)
1177 * If anyone wants to 'donate' a radiotap OUI/subns code
1178 * please send a patch removing this #ifdef and changing
1179 * the values accordingly.
1181 #ifdef HWSIM_RADIOTAP_OUI
1182 struct ieee80211_vendor_radiotap *rtap;
1185 * Note that this code requires the headroom in the SKB
1186 * that was allocated earlier.
1188 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1189 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1190 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1191 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1195 * Radiotap vendor namespaces can (and should) also be
1196 * split into fields by using the standard radiotap
1197 * presence bitmap mechanism. Use just BIT(0) here for
1198 * the presence bitmap.
1200 rtap->present = BIT(0);
1201 /* We have 8 bytes of (dummy) data */
1203 /* For testing, also require it to be aligned */
1205 /* And also test that padding works, 4 bytes */
1208 memcpy(rtap->data, "ABCDEFGH", 8);
1209 /* make sure to clear padding, mac80211 doesn't */
1210 memset(rtap->data + 8, 0, 4);
1212 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1216 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1217 struct sk_buff *skb,
1218 struct ieee80211_channel *chan)
1220 struct mac80211_hwsim_data *data = hw->priv, *data2;
1222 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1223 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1224 struct ieee80211_rx_status rx_status;
1227 memset(&rx_status, 0, sizeof(rx_status));
1228 rx_status.flag |= RX_FLAG_MACTIME_START;
1229 rx_status.freq = chan->center_freq;
1230 rx_status.band = chan->band;
1231 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1232 rx_status.rate_idx =
1233 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1235 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1236 rx_status.encoding = RX_ENC_VHT;
1238 rx_status.rate_idx = info->control.rates[0].idx;
1239 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1240 rx_status.encoding = RX_ENC_HT;
1242 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1243 rx_status.bw = RATE_INFO_BW_40;
1244 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1245 rx_status.bw = RATE_INFO_BW_80;
1246 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1247 rx_status.bw = RATE_INFO_BW_160;
1249 rx_status.bw = RATE_INFO_BW_20;
1250 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1251 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1252 /* TODO: simulate real signal strength (and optional packet loss) */
1253 rx_status.signal = -50;
1254 if (info->control.vif)
1255 rx_status.signal += info->control.vif->bss_conf.txpower;
1257 if (data->ps != PS_DISABLED)
1258 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1260 /* release the skb's source info */
1268 * Get absolute mactime here so all HWs RX at the "same time", and
1269 * absolute TX time for beacon mactime so the timestamp matches.
1270 * Giving beacons a different mactime than non-beacons looks messy, but
1271 * it helps the Toffset be exact and a ~10us mactime discrepancy
1272 * probably doesn't really matter.
1274 if (ieee80211_is_beacon(hdr->frame_control) ||
1275 ieee80211_is_probe_resp(hdr->frame_control)) {
1276 rx_status.boottime_ns = ktime_get_boottime_ns();
1277 now = data->abs_bcn_ts;
1279 now = mac80211_hwsim_get_tsf_raw();
1282 /* Copy skb to all enabled radios that are on the current frequency */
1283 spin_lock(&hwsim_radio_lock);
1284 list_for_each_entry(data2, &hwsim_radios, list) {
1285 struct sk_buff *nskb;
1286 struct tx_iter_data tx_iter_data = {
1294 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1295 !hwsim_ps_rx_ok(data2, skb))
1298 if (!(data->group & data2->group))
1301 if (data->netgroup != data2->netgroup)
1304 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1305 !hwsim_chans_compat(chan, data2->channel)) {
1306 ieee80211_iterate_active_interfaces_atomic(
1307 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1308 mac80211_hwsim_tx_iter, &tx_iter_data);
1309 if (!tx_iter_data.receive)
1314 * reserve some space for our vendor and the normal
1315 * radiotap header, since we're copying anyway
1317 if (skb->len < PAGE_SIZE && paged_rx) {
1318 struct page *page = alloc_page(GFP_ATOMIC);
1323 nskb = dev_alloc_skb(128);
1329 memcpy(page_address(page), skb->data, skb->len);
1330 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1332 nskb = skb_copy(skb, GFP_ATOMIC);
1337 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1340 rx_status.mactime = now + data2->tsf_offset;
1342 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1344 mac80211_hwsim_add_vendor_rtap(nskb);
1347 data2->rx_bytes += nskb->len;
1348 ieee80211_rx_irqsafe(data2->hw, nskb);
1350 spin_unlock(&hwsim_radio_lock);
1355 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1356 struct ieee80211_tx_control *control,
1357 struct sk_buff *skb)
1359 struct mac80211_hwsim_data *data = hw->priv;
1360 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1361 struct ieee80211_hdr *hdr = (void *)skb->data;
1362 struct ieee80211_chanctx_conf *chanctx_conf;
1363 struct ieee80211_channel *channel;
1367 if (WARN_ON(skb->len < 10)) {
1368 /* Should not happen; just a sanity check for addr1 use */
1369 ieee80211_free_txskb(hw, skb);
1373 if (!data->use_chanctx) {
1374 channel = data->channel;
1375 } else if (txi->hw_queue == 4) {
1376 channel = data->tmp_chan;
1378 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1380 channel = chanctx_conf->def.chan;
1385 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1386 ieee80211_free_txskb(hw, skb);
1390 if (data->idle && !data->tmp_chan) {
1391 wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
1392 ieee80211_free_txskb(hw, skb);
1396 if (txi->control.vif)
1397 hwsim_check_magic(txi->control.vif);
1399 hwsim_check_sta_magic(control->sta);
1401 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1402 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1404 ARRAY_SIZE(txi->control.rates));
1406 if (skb->len >= 24 + 8 &&
1407 ieee80211_is_probe_resp(hdr->frame_control)) {
1408 /* fake header transmission time */
1409 struct ieee80211_mgmt *mgmt;
1410 struct ieee80211_rate *txrate;
1413 mgmt = (struct ieee80211_mgmt *)skb->data;
1414 txrate = ieee80211_get_tx_rate(hw, txi);
1415 ts = mac80211_hwsim_get_tsf_raw();
1416 mgmt->u.probe_resp.timestamp =
1417 cpu_to_le64(ts + data->tsf_offset +
1418 24 * 8 * 10 / txrate->bitrate);
1421 mac80211_hwsim_monitor_rx(hw, skb, channel);
1423 /* wmediumd mode check */
1424 _portid = READ_ONCE(data->wmediumd);
1427 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1429 /* NO wmediumd detected, perfect medium simulation */
1431 data->tx_bytes += skb->len;
1432 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1434 if (ack && skb->len >= 16)
1435 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1437 ieee80211_tx_info_clear_status(txi);
1439 /* frame was transmitted at most favorable rate at first attempt */
1440 txi->control.rates[0].count = 1;
1441 txi->control.rates[1].idx = -1;
1443 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1444 txi->flags |= IEEE80211_TX_STAT_ACK;
1445 ieee80211_tx_status_irqsafe(hw, skb);
1449 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1451 struct mac80211_hwsim_data *data = hw->priv;
1452 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1453 data->started = true;
1458 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1460 struct mac80211_hwsim_data *data = hw->priv;
1461 data->started = false;
1462 hrtimer_cancel(&data->beacon_timer);
1463 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1467 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1468 struct ieee80211_vif *vif)
1470 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1471 __func__, ieee80211_vif_type_p2p(vif),
1473 hwsim_set_magic(vif);
1476 vif->hw_queue[IEEE80211_AC_VO] = 0;
1477 vif->hw_queue[IEEE80211_AC_VI] = 1;
1478 vif->hw_queue[IEEE80211_AC_BE] = 2;
1479 vif->hw_queue[IEEE80211_AC_BK] = 3;
1485 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1486 struct ieee80211_vif *vif,
1487 enum nl80211_iftype newtype,
1490 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1491 wiphy_dbg(hw->wiphy,
1492 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1493 __func__, ieee80211_vif_type_p2p(vif),
1494 newtype, vif->addr);
1495 hwsim_check_magic(vif);
1498 * interface may change from non-AP to AP in
1499 * which case this needs to be set up again
1506 static void mac80211_hwsim_remove_interface(
1507 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1509 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1510 __func__, ieee80211_vif_type_p2p(vif),
1512 hwsim_check_magic(vif);
1513 hwsim_clear_magic(vif);
1516 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1517 struct sk_buff *skb,
1518 struct ieee80211_channel *chan)
1520 struct mac80211_hwsim_data *data = hw->priv;
1521 u32 _pid = READ_ONCE(data->wmediumd);
1523 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1524 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1525 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1527 ARRAY_SIZE(txi->control.rates));
1530 mac80211_hwsim_monitor_rx(hw, skb, chan);
1533 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1535 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1539 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1540 struct ieee80211_vif *vif)
1542 struct mac80211_hwsim_data *data = arg;
1543 struct ieee80211_hw *hw = data->hw;
1544 struct ieee80211_tx_info *info;
1545 struct ieee80211_rate *txrate;
1546 struct ieee80211_mgmt *mgmt;
1547 struct sk_buff *skb;
1549 hwsim_check_magic(vif);
1551 if (vif->type != NL80211_IFTYPE_AP &&
1552 vif->type != NL80211_IFTYPE_MESH_POINT &&
1553 vif->type != NL80211_IFTYPE_ADHOC)
1556 skb = ieee80211_beacon_get(hw, vif);
1559 info = IEEE80211_SKB_CB(skb);
1560 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1561 ieee80211_get_tx_rates(vif, NULL, skb,
1562 info->control.rates,
1563 ARRAY_SIZE(info->control.rates));
1565 txrate = ieee80211_get_tx_rate(hw, info);
1567 mgmt = (struct ieee80211_mgmt *) skb->data;
1568 /* fake header transmission time */
1569 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1570 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1572 24 * 8 * 10 / txrate->bitrate);
1574 mac80211_hwsim_tx_frame(hw, skb,
1575 rcu_dereference(vif->chanctx_conf)->def.chan);
1577 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1578 ieee80211_csa_finish(vif);
1581 static enum hrtimer_restart
1582 mac80211_hwsim_beacon(struct hrtimer *timer)
1584 struct mac80211_hwsim_data *data =
1585 container_of(timer, struct mac80211_hwsim_data, beacon_timer);
1586 struct ieee80211_hw *hw = data->hw;
1587 u64 bcn_int = data->beacon_int;
1590 return HRTIMER_NORESTART;
1592 ieee80211_iterate_active_interfaces_atomic(
1593 hw, IEEE80211_IFACE_ITER_NORMAL,
1594 mac80211_hwsim_beacon_tx, data);
1596 /* beacon at new TBTT + beacon interval */
1597 if (data->bcn_delta) {
1598 bcn_int -= data->bcn_delta;
1599 data->bcn_delta = 0;
1601 hrtimer_forward(&data->beacon_timer, hrtimer_get_expires(timer),
1602 ns_to_ktime(bcn_int * NSEC_PER_USEC));
1603 return HRTIMER_RESTART;
1606 static const char * const hwsim_chanwidths[] = {
1607 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1608 [NL80211_CHAN_WIDTH_20] = "ht20",
1609 [NL80211_CHAN_WIDTH_40] = "ht40",
1610 [NL80211_CHAN_WIDTH_80] = "vht80",
1611 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1612 [NL80211_CHAN_WIDTH_160] = "vht160",
1615 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1617 struct mac80211_hwsim_data *data = hw->priv;
1618 struct ieee80211_conf *conf = &hw->conf;
1619 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1620 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1621 [IEEE80211_SMPS_OFF] = "off",
1622 [IEEE80211_SMPS_STATIC] = "static",
1623 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1627 if (conf->chandef.chan)
1628 wiphy_dbg(hw->wiphy,
1629 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1631 conf->chandef.chan->center_freq,
1632 conf->chandef.center_freq1,
1633 conf->chandef.center_freq2,
1634 hwsim_chanwidths[conf->chandef.width],
1635 !!(conf->flags & IEEE80211_CONF_IDLE),
1636 !!(conf->flags & IEEE80211_CONF_PS),
1637 smps_modes[conf->smps_mode]);
1639 wiphy_dbg(hw->wiphy,
1640 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1642 !!(conf->flags & IEEE80211_CONF_IDLE),
1643 !!(conf->flags & IEEE80211_CONF_PS),
1644 smps_modes[conf->smps_mode]);
1646 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1648 WARN_ON(conf->chandef.chan && data->use_chanctx);
1650 mutex_lock(&data->mutex);
1651 if (data->scanning && conf->chandef.chan) {
1652 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1653 if (data->survey_data[idx].channel == data->channel) {
1654 data->survey_data[idx].start =
1655 data->survey_data[idx].next_start;
1656 data->survey_data[idx].end = jiffies;
1661 data->channel = conf->chandef.chan;
1663 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1664 if (data->survey_data[idx].channel &&
1665 data->survey_data[idx].channel != data->channel)
1667 data->survey_data[idx].channel = data->channel;
1668 data->survey_data[idx].next_start = jiffies;
1672 data->channel = conf->chandef.chan;
1674 mutex_unlock(&data->mutex);
1676 if (!data->started || !data->beacon_int)
1677 hrtimer_cancel(&data->beacon_timer);
1678 else if (!hrtimer_is_queued(&data->beacon_timer)) {
1679 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1680 u32 bcn_int = data->beacon_int;
1681 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1683 hrtimer_start(&data->beacon_timer,
1684 ns_to_ktime(until_tbtt * NSEC_PER_USEC),
1685 HRTIMER_MODE_REL_SOFT);
1692 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1693 unsigned int changed_flags,
1694 unsigned int *total_flags,u64 multicast)
1696 struct mac80211_hwsim_data *data = hw->priv;
1698 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1700 data->rx_filter = 0;
1701 if (*total_flags & FIF_ALLMULTI)
1702 data->rx_filter |= FIF_ALLMULTI;
1704 *total_flags = data->rx_filter;
1707 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1708 struct ieee80211_vif *vif)
1710 unsigned int *count = data;
1711 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1717 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1718 struct ieee80211_vif *vif,
1719 struct ieee80211_bss_conf *info,
1722 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1723 struct mac80211_hwsim_data *data = hw->priv;
1725 hwsim_check_magic(vif);
1727 wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1728 __func__, changed, vif->addr);
1730 if (changed & BSS_CHANGED_BSSID) {
1731 wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
1732 __func__, info->bssid);
1733 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1736 if (changed & BSS_CHANGED_ASSOC) {
1737 wiphy_dbg(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1738 info->assoc, info->aid);
1739 vp->assoc = info->assoc;
1740 vp->aid = info->aid;
1743 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1744 wiphy_dbg(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1745 info->enable_beacon, info->beacon_int);
1746 vp->bcn_en = info->enable_beacon;
1747 if (data->started &&
1748 !hrtimer_is_queued(&data->beacon_timer) &&
1749 info->enable_beacon) {
1750 u64 tsf, until_tbtt;
1752 data->beacon_int = info->beacon_int * 1024;
1753 tsf = mac80211_hwsim_get_tsf(hw, vif);
1754 bcn_int = data->beacon_int;
1755 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1757 hrtimer_start(&data->beacon_timer,
1758 ns_to_ktime(until_tbtt * NSEC_PER_USEC),
1759 HRTIMER_MODE_REL_SOFT);
1760 } else if (!info->enable_beacon) {
1761 unsigned int count = 0;
1762 ieee80211_iterate_active_interfaces_atomic(
1763 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1764 mac80211_hwsim_bcn_en_iter, &count);
1765 wiphy_dbg(hw->wiphy, " beaconing vifs remaining: %u",
1768 hrtimer_cancel(&data->beacon_timer);
1769 data->beacon_int = 0;
1774 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1775 wiphy_dbg(hw->wiphy, " ERP_CTS_PROT: %d\n",
1776 info->use_cts_prot);
1779 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1780 wiphy_dbg(hw->wiphy, " ERP_PREAMBLE: %d\n",
1781 info->use_short_preamble);
1784 if (changed & BSS_CHANGED_ERP_SLOT) {
1785 wiphy_dbg(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1788 if (changed & BSS_CHANGED_HT) {
1789 wiphy_dbg(hw->wiphy, " HT: op_mode=0x%x\n",
1790 info->ht_operation_mode);
1793 if (changed & BSS_CHANGED_BASIC_RATES) {
1794 wiphy_dbg(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1795 (unsigned long long) info->basic_rates);
1798 if (changed & BSS_CHANGED_TXPOWER)
1799 wiphy_dbg(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1802 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1803 struct ieee80211_vif *vif,
1804 struct ieee80211_sta *sta)
1806 hwsim_check_magic(vif);
1807 hwsim_set_sta_magic(sta);
1812 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1813 struct ieee80211_vif *vif,
1814 struct ieee80211_sta *sta)
1816 hwsim_check_magic(vif);
1817 hwsim_clear_sta_magic(sta);
1822 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1823 struct ieee80211_vif *vif,
1824 enum sta_notify_cmd cmd,
1825 struct ieee80211_sta *sta)
1827 hwsim_check_magic(vif);
1830 case STA_NOTIFY_SLEEP:
1831 case STA_NOTIFY_AWAKE:
1832 /* TODO: make good use of these flags */
1835 WARN(1, "Invalid sta notify: %d\n", cmd);
1840 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1841 struct ieee80211_sta *sta,
1844 hwsim_check_sta_magic(sta);
1848 static int mac80211_hwsim_conf_tx(
1849 struct ieee80211_hw *hw,
1850 struct ieee80211_vif *vif, u16 queue,
1851 const struct ieee80211_tx_queue_params *params)
1853 wiphy_dbg(hw->wiphy,
1854 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1856 params->txop, params->cw_min,
1857 params->cw_max, params->aifs);
1861 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1862 struct survey_info *survey)
1864 struct mac80211_hwsim_data *hwsim = hw->priv;
1866 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1869 mutex_lock(&hwsim->mutex);
1870 survey->channel = hwsim->survey_data[idx].channel;
1871 if (!survey->channel) {
1872 mutex_unlock(&hwsim->mutex);
1877 * Magically conjured dummy values --- this is only ok for simulated hardware.
1879 * A real driver which cannot determine real values noise MUST NOT
1880 * report any, especially not a magically conjured ones :-)
1882 survey->filled = SURVEY_INFO_NOISE_DBM |
1884 SURVEY_INFO_TIME_BUSY;
1885 survey->noise = -92;
1887 jiffies_to_msecs(hwsim->survey_data[idx].end -
1888 hwsim->survey_data[idx].start);
1889 /* report 12.5% of channel time is used */
1890 survey->time_busy = survey->time/8;
1891 mutex_unlock(&hwsim->mutex);
1896 #ifdef CONFIG_NL80211_TESTMODE
1898 * This section contains example code for using netlink
1899 * attributes with the testmode command in nl80211.
1902 /* These enums need to be kept in sync with userspace */
1903 enum hwsim_testmode_attr {
1904 __HWSIM_TM_ATTR_INVALID = 0,
1905 HWSIM_TM_ATTR_CMD = 1,
1906 HWSIM_TM_ATTR_PS = 2,
1909 __HWSIM_TM_ATTR_AFTER_LAST,
1910 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1913 enum hwsim_testmode_cmd {
1914 HWSIM_TM_CMD_SET_PS = 0,
1915 HWSIM_TM_CMD_GET_PS = 1,
1916 HWSIM_TM_CMD_STOP_QUEUES = 2,
1917 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1920 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1921 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1922 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1925 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1926 struct ieee80211_vif *vif,
1927 void *data, int len)
1929 struct mac80211_hwsim_data *hwsim = hw->priv;
1930 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1931 struct sk_buff *skb;
1934 err = nla_parse_deprecated(tb, HWSIM_TM_ATTR_MAX, data, len,
1935 hwsim_testmode_policy, NULL);
1939 if (!tb[HWSIM_TM_ATTR_CMD])
1942 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1943 case HWSIM_TM_CMD_SET_PS:
1944 if (!tb[HWSIM_TM_ATTR_PS])
1946 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1947 return hwsim_fops_ps_write(hwsim, ps);
1948 case HWSIM_TM_CMD_GET_PS:
1949 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1950 nla_total_size(sizeof(u32)));
1953 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1954 goto nla_put_failure;
1955 return cfg80211_testmode_reply(skb);
1956 case HWSIM_TM_CMD_STOP_QUEUES:
1957 ieee80211_stop_queues(hw);
1959 case HWSIM_TM_CMD_WAKE_QUEUES:
1960 ieee80211_wake_queues(hw);
1972 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1973 struct ieee80211_vif *vif,
1974 struct ieee80211_ampdu_params *params)
1976 struct ieee80211_sta *sta = params->sta;
1977 enum ieee80211_ampdu_mlme_action action = params->action;
1978 u16 tid = params->tid;
1981 case IEEE80211_AMPDU_TX_START:
1982 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1984 case IEEE80211_AMPDU_TX_STOP_CONT:
1985 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1986 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1987 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1989 case IEEE80211_AMPDU_TX_OPERATIONAL:
1991 case IEEE80211_AMPDU_RX_START:
1992 case IEEE80211_AMPDU_RX_STOP:
2001 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2002 struct ieee80211_vif *vif,
2003 u32 queues, bool drop)
2005 /* Not implemented, queues only on kernel side */
2008 static void hw_scan_work(struct work_struct *work)
2010 struct mac80211_hwsim_data *hwsim =
2011 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2012 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2015 mutex_lock(&hwsim->mutex);
2016 if (hwsim->scan_chan_idx >= req->n_channels) {
2017 struct cfg80211_scan_info info = {
2021 wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
2022 ieee80211_scan_completed(hwsim->hw, &info);
2023 hwsim->hw_scan_request = NULL;
2024 hwsim->hw_scan_vif = NULL;
2025 hwsim->tmp_chan = NULL;
2026 mutex_unlock(&hwsim->mutex);
2030 wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2031 req->channels[hwsim->scan_chan_idx]->center_freq);
2033 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2034 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2035 IEEE80211_CHAN_RADAR) ||
2041 for (i = 0; i < req->n_ssids; i++) {
2042 struct sk_buff *probe;
2043 struct ieee80211_mgmt *mgmt;
2045 probe = ieee80211_probereq_get(hwsim->hw,
2048 req->ssids[i].ssid_len,
2053 mgmt = (struct ieee80211_mgmt *) probe->data;
2054 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2055 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2058 skb_put_data(probe, req->ie, req->ie_len);
2061 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2066 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2067 msecs_to_jiffies(dwell));
2068 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2069 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2070 hwsim->survey_data[hwsim->scan_chan_idx].end =
2071 jiffies + msecs_to_jiffies(dwell);
2072 hwsim->scan_chan_idx++;
2073 mutex_unlock(&hwsim->mutex);
2076 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2077 struct ieee80211_vif *vif,
2078 struct ieee80211_scan_request *hw_req)
2080 struct mac80211_hwsim_data *hwsim = hw->priv;
2081 struct cfg80211_scan_request *req = &hw_req->req;
2083 mutex_lock(&hwsim->mutex);
2084 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2085 mutex_unlock(&hwsim->mutex);
2088 hwsim->hw_scan_request = req;
2089 hwsim->hw_scan_vif = vif;
2090 hwsim->scan_chan_idx = 0;
2091 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2092 get_random_mask_addr(hwsim->scan_addr,
2093 hw_req->req.mac_addr,
2094 hw_req->req.mac_addr_mask);
2096 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2097 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2098 mutex_unlock(&hwsim->mutex);
2100 wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
2102 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2107 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2108 struct ieee80211_vif *vif)
2110 struct mac80211_hwsim_data *hwsim = hw->priv;
2111 struct cfg80211_scan_info info = {
2115 wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
2117 cancel_delayed_work_sync(&hwsim->hw_scan);
2119 mutex_lock(&hwsim->mutex);
2120 ieee80211_scan_completed(hwsim->hw, &info);
2121 hwsim->tmp_chan = NULL;
2122 hwsim->hw_scan_request = NULL;
2123 hwsim->hw_scan_vif = NULL;
2124 mutex_unlock(&hwsim->mutex);
2127 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2128 struct ieee80211_vif *vif,
2131 struct mac80211_hwsim_data *hwsim = hw->priv;
2133 mutex_lock(&hwsim->mutex);
2135 if (hwsim->scanning) {
2136 pr_debug("two hwsim sw_scans detected!\n");
2140 pr_debug("hwsim sw_scan request, prepping stuff\n");
2142 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2143 hwsim->scanning = true;
2144 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2147 mutex_unlock(&hwsim->mutex);
2150 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2151 struct ieee80211_vif *vif)
2153 struct mac80211_hwsim_data *hwsim = hw->priv;
2155 mutex_lock(&hwsim->mutex);
2157 pr_debug("hwsim sw_scan_complete\n");
2158 hwsim->scanning = false;
2159 eth_zero_addr(hwsim->scan_addr);
2161 mutex_unlock(&hwsim->mutex);
2164 static void hw_roc_start(struct work_struct *work)
2166 struct mac80211_hwsim_data *hwsim =
2167 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2169 mutex_lock(&hwsim->mutex);
2171 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
2172 hwsim->tmp_chan = hwsim->roc_chan;
2173 ieee80211_ready_on_channel(hwsim->hw);
2175 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2176 msecs_to_jiffies(hwsim->roc_duration));
2178 mutex_unlock(&hwsim->mutex);
2181 static void hw_roc_done(struct work_struct *work)
2183 struct mac80211_hwsim_data *hwsim =
2184 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2186 mutex_lock(&hwsim->mutex);
2187 ieee80211_remain_on_channel_expired(hwsim->hw);
2188 hwsim->tmp_chan = NULL;
2189 mutex_unlock(&hwsim->mutex);
2191 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
2194 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2195 struct ieee80211_vif *vif,
2196 struct ieee80211_channel *chan,
2198 enum ieee80211_roc_type type)
2200 struct mac80211_hwsim_data *hwsim = hw->priv;
2202 mutex_lock(&hwsim->mutex);
2203 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2204 mutex_unlock(&hwsim->mutex);
2208 hwsim->roc_chan = chan;
2209 hwsim->roc_duration = duration;
2210 mutex_unlock(&hwsim->mutex);
2212 wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2213 chan->center_freq, duration);
2214 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2219 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2221 struct mac80211_hwsim_data *hwsim = hw->priv;
2223 cancel_delayed_work_sync(&hwsim->roc_start);
2224 cancel_delayed_work_sync(&hwsim->roc_done);
2226 mutex_lock(&hwsim->mutex);
2227 hwsim->tmp_chan = NULL;
2228 mutex_unlock(&hwsim->mutex);
2230 wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
2235 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2236 struct ieee80211_chanctx_conf *ctx)
2238 hwsim_set_chanctx_magic(ctx);
2239 wiphy_dbg(hw->wiphy,
2240 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2241 ctx->def.chan->center_freq, ctx->def.width,
2242 ctx->def.center_freq1, ctx->def.center_freq2);
2246 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2247 struct ieee80211_chanctx_conf *ctx)
2249 wiphy_dbg(hw->wiphy,
2250 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2251 ctx->def.chan->center_freq, ctx->def.width,
2252 ctx->def.center_freq1, ctx->def.center_freq2);
2253 hwsim_check_chanctx_magic(ctx);
2254 hwsim_clear_chanctx_magic(ctx);
2257 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2258 struct ieee80211_chanctx_conf *ctx,
2261 hwsim_check_chanctx_magic(ctx);
2262 wiphy_dbg(hw->wiphy,
2263 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2264 ctx->def.chan->center_freq, ctx->def.width,
2265 ctx->def.center_freq1, ctx->def.center_freq2);
2268 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2269 struct ieee80211_vif *vif,
2270 struct ieee80211_chanctx_conf *ctx)
2272 hwsim_check_magic(vif);
2273 hwsim_check_chanctx_magic(ctx);
2278 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2279 struct ieee80211_vif *vif,
2280 struct ieee80211_chanctx_conf *ctx)
2282 hwsim_check_magic(vif);
2283 hwsim_check_chanctx_magic(ctx);
2286 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2297 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2299 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2300 struct ieee80211_vif *vif,
2303 if (sset == ETH_SS_STATS)
2304 memcpy(data, *mac80211_hwsim_gstrings_stats,
2305 sizeof(mac80211_hwsim_gstrings_stats));
2308 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2309 struct ieee80211_vif *vif, int sset)
2311 if (sset == ETH_SS_STATS)
2312 return MAC80211_HWSIM_SSTATS_LEN;
2316 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2317 struct ieee80211_vif *vif,
2318 struct ethtool_stats *stats, u64 *data)
2320 struct mac80211_hwsim_data *ar = hw->priv;
2323 data[i++] = ar->tx_pkts;
2324 data[i++] = ar->tx_bytes;
2325 data[i++] = ar->rx_pkts;
2326 data[i++] = ar->rx_bytes;
2327 data[i++] = ar->tx_dropped;
2328 data[i++] = ar->tx_failed;
2330 data[i++] = ar->group;
2332 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2335 #define HWSIM_COMMON_OPS \
2336 .tx = mac80211_hwsim_tx, \
2337 .start = mac80211_hwsim_start, \
2338 .stop = mac80211_hwsim_stop, \
2339 .add_interface = mac80211_hwsim_add_interface, \
2340 .change_interface = mac80211_hwsim_change_interface, \
2341 .remove_interface = mac80211_hwsim_remove_interface, \
2342 .config = mac80211_hwsim_config, \
2343 .configure_filter = mac80211_hwsim_configure_filter, \
2344 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2345 .sta_add = mac80211_hwsim_sta_add, \
2346 .sta_remove = mac80211_hwsim_sta_remove, \
2347 .sta_notify = mac80211_hwsim_sta_notify, \
2348 .set_tim = mac80211_hwsim_set_tim, \
2349 .conf_tx = mac80211_hwsim_conf_tx, \
2350 .get_survey = mac80211_hwsim_get_survey, \
2351 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2352 .ampdu_action = mac80211_hwsim_ampdu_action, \
2353 .flush = mac80211_hwsim_flush, \
2354 .get_tsf = mac80211_hwsim_get_tsf, \
2355 .set_tsf = mac80211_hwsim_set_tsf, \
2356 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2357 .get_et_stats = mac80211_hwsim_get_et_stats, \
2358 .get_et_strings = mac80211_hwsim_get_et_strings,
2360 static const struct ieee80211_ops mac80211_hwsim_ops = {
2362 .sw_scan_start = mac80211_hwsim_sw_scan,
2363 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2366 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2368 .hw_scan = mac80211_hwsim_hw_scan,
2369 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2370 .sw_scan_start = NULL,
2371 .sw_scan_complete = NULL,
2372 .remain_on_channel = mac80211_hwsim_roc,
2373 .cancel_remain_on_channel = mac80211_hwsim_croc,
2374 .add_chanctx = mac80211_hwsim_add_chanctx,
2375 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2376 .change_chanctx = mac80211_hwsim_change_chanctx,
2377 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2378 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2381 struct hwsim_new_radio_params {
2382 unsigned int channels;
2383 const char *reg_alpha2;
2384 const struct ieee80211_regdomain *regd;
2388 bool destroy_on_close;
2391 const u8 *perm_addr;
2397 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2398 struct genl_info *info)
2401 genl_notify(&hwsim_genl_family, mcast_skb, info,
2402 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2404 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2405 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2408 static int append_radio_msg(struct sk_buff *skb, int id,
2409 struct hwsim_new_radio_params *param)
2413 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2417 if (param->channels) {
2418 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2423 if (param->reg_alpha2) {
2424 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2433 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2434 if (hwsim_world_regdom_custom[i] != param->regd)
2437 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2444 if (param->reg_strict) {
2445 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2450 if (param->p2p_device) {
2451 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2456 if (param->use_chanctx) {
2457 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2462 if (param->hwname) {
2463 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2464 strlen(param->hwname), param->hwname);
2472 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2473 struct hwsim_new_radio_params *param)
2475 struct sk_buff *mcast_skb;
2478 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2482 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2483 HWSIM_CMD_NEW_RADIO);
2487 if (append_radio_msg(mcast_skb, id, param) < 0)
2490 genlmsg_end(mcast_skb, data);
2492 hwsim_mcast_config_msg(mcast_skb, info);
2496 nlmsg_free(mcast_skb);
2499 static const struct ieee80211_sband_iftype_data he_capa_2ghz = {
2500 /* TODO: should we support other types, e.g., P2P?*/
2501 .types_mask = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP),
2506 IEEE80211_HE_MAC_CAP0_HTC_HE,
2508 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2509 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2511 IEEE80211_HE_MAC_CAP2_BSR |
2512 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2513 IEEE80211_HE_MAC_CAP2_ACK_EN,
2515 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2516 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2517 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2519 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2520 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2521 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2522 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2524 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2525 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2526 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2527 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2528 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2530 /* Leave all the other PHY capability bytes unset, as
2531 * DCM, beam forming, RU and PPE threshold information
2535 .he_mcs_nss_supp = {
2536 .rx_mcs_80 = cpu_to_le16(0xfffa),
2537 .tx_mcs_80 = cpu_to_le16(0xfffa),
2538 .rx_mcs_160 = cpu_to_le16(0xffff),
2539 .tx_mcs_160 = cpu_to_le16(0xffff),
2540 .rx_mcs_80p80 = cpu_to_le16(0xffff),
2541 .tx_mcs_80p80 = cpu_to_le16(0xffff),
2546 static const struct ieee80211_sband_iftype_data he_capa_5ghz = {
2547 /* TODO: should we support other types, e.g., P2P?*/
2548 .types_mask = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP),
2553 IEEE80211_HE_MAC_CAP0_HTC_HE,
2555 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2556 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2558 IEEE80211_HE_MAC_CAP2_BSR |
2559 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2560 IEEE80211_HE_MAC_CAP2_ACK_EN,
2562 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2563 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2564 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2566 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2567 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2568 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
2570 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2571 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2572 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2573 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2575 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2576 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2577 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2578 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2579 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2581 /* Leave all the other PHY capability bytes unset, as
2582 * DCM, beam forming, RU and PPE threshold information
2586 .he_mcs_nss_supp = {
2587 .rx_mcs_80 = cpu_to_le16(0xfffa),
2588 .tx_mcs_80 = cpu_to_le16(0xfffa),
2589 .rx_mcs_160 = cpu_to_le16(0xfffa),
2590 .tx_mcs_160 = cpu_to_le16(0xfffa),
2591 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
2592 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
2597 static void mac80211_hswim_he_capab(struct ieee80211_supported_band *sband)
2599 if (sband->band == NL80211_BAND_2GHZ)
2600 sband->iftype_data =
2601 (struct ieee80211_sband_iftype_data *)&he_capa_2ghz;
2602 else if (sband->band == NL80211_BAND_5GHZ)
2603 sband->iftype_data =
2604 (struct ieee80211_sband_iftype_data *)&he_capa_5ghz;
2608 sband->n_iftype_data = 1;
2611 #ifdef CONFIG_MAC80211_MESH
2612 #define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
2614 #define HWSIM_MESH_BIT 0
2617 #define HWSIM_DEFAULT_IF_LIMIT \
2618 (BIT(NL80211_IFTYPE_STATION) | \
2619 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
2620 BIT(NL80211_IFTYPE_AP) | \
2621 BIT(NL80211_IFTYPE_P2P_GO) | \
2624 #define HWSIM_IFTYPE_SUPPORT_MASK \
2625 (BIT(NL80211_IFTYPE_STATION) | \
2626 BIT(NL80211_IFTYPE_AP) | \
2627 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
2628 BIT(NL80211_IFTYPE_P2P_GO) | \
2629 BIT(NL80211_IFTYPE_ADHOC) | \
2630 BIT(NL80211_IFTYPE_MESH_POINT))
2632 static int mac80211_hwsim_new_radio(struct genl_info *info,
2633 struct hwsim_new_radio_params *param)
2637 struct mac80211_hwsim_data *data;
2638 struct ieee80211_hw *hw;
2639 enum nl80211_band band;
2640 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2645 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2648 spin_lock_bh(&hwsim_radio_lock);
2649 idx = hwsim_radio_idx++;
2650 spin_unlock_bh(&hwsim_radio_lock);
2652 if (param->use_chanctx)
2653 ops = &mac80211_hwsim_mchan_ops;
2654 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2656 pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
2661 /* ieee80211_alloc_hw_nm may have used a default name */
2662 param->hwname = wiphy_name(hw->wiphy);
2665 net = genl_info_net(info);
2668 wiphy_net_set(hw->wiphy, net);
2673 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2674 if (IS_ERR(data->dev)) {
2676 "mac80211_hwsim: device_create failed (%ld)\n",
2677 PTR_ERR(data->dev));
2679 goto failed_drvdata;
2681 data->dev->driver = &mac80211_hwsim_driver.driver;
2682 err = device_bind_driver(data->dev);
2684 pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
2689 skb_queue_head_init(&data->pending);
2691 SET_IEEE80211_DEV(hw, data->dev);
2692 if (!param->perm_addr) {
2693 eth_zero_addr(addr);
2697 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2698 /* Why need here second address ? */
2699 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2700 data->addresses[1].addr[0] |= 0x40;
2701 hw->wiphy->n_addresses = 2;
2702 hw->wiphy->addresses = data->addresses;
2703 /* possible address clash is checked at hash table insertion */
2705 memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
2706 /* compatibility with automatically generated mac addr */
2707 memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
2708 hw->wiphy->n_addresses = 2;
2709 hw->wiphy->addresses = data->addresses;
2712 data->channels = param->channels;
2713 data->use_chanctx = param->use_chanctx;
2715 data->destroy_on_close = param->destroy_on_close;
2717 data->portid = info->snd_portid;
2719 /* setup interface limits, only on interface types we support */
2720 if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
2721 data->if_limits[n_limits].max = 1;
2722 data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
2726 if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
2727 data->if_limits[n_limits].max = 2048;
2729 * For this case, we may only support a subset of
2730 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
2731 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
2733 data->if_limits[n_limits].types =
2734 HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
2738 if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
2739 data->if_limits[n_limits].max = 1;
2740 data->if_limits[n_limits].types =
2741 BIT(NL80211_IFTYPE_P2P_DEVICE);
2745 if (data->use_chanctx) {
2746 hw->wiphy->max_scan_ssids = 255;
2747 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2748 hw->wiphy->max_remain_on_channel_duration = 1000;
2749 data->if_combination.radar_detect_widths = 0;
2750 data->if_combination.num_different_channels = data->channels;
2752 data->if_combination.num_different_channels = 1;
2753 data->if_combination.radar_detect_widths =
2754 BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2755 BIT(NL80211_CHAN_WIDTH_20) |
2756 BIT(NL80211_CHAN_WIDTH_40) |
2757 BIT(NL80211_CHAN_WIDTH_80) |
2758 BIT(NL80211_CHAN_WIDTH_160);
2766 data->if_combination.max_interfaces = 0;
2767 for (i = 0; i < n_limits; i++)
2768 data->if_combination.max_interfaces +=
2769 data->if_limits[i].max;
2771 data->if_combination.n_limits = n_limits;
2772 data->if_combination.limits = data->if_limits;
2775 * If we actually were asked to support combinations,
2776 * advertise them - if there's only a single thing like
2777 * only IBSS then don't advertise it as combinations.
2779 if (data->if_combination.max_interfaces > 1) {
2780 hw->wiphy->iface_combinations = &data->if_combination;
2781 hw->wiphy->n_iface_combinations = 1;
2784 if (param->ciphers) {
2785 memcpy(data->ciphers, param->ciphers,
2786 param->n_ciphers * sizeof(u32));
2787 hw->wiphy->cipher_suites = data->ciphers;
2788 hw->wiphy->n_cipher_suites = param->n_ciphers;
2791 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
2792 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2793 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2796 hw->offchannel_tx_hw_queue = 4;
2798 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2799 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2800 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2801 ieee80211_hw_set(hw, QUEUE_CONTROL);
2802 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2803 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2804 ieee80211_hw_set(hw, MFP_CAPABLE);
2805 ieee80211_hw_set(hw, SIGNAL_DBM);
2806 ieee80211_hw_set(hw, SUPPORTS_PS);
2807 ieee80211_hw_set(hw, TDLS_WIDER_BW);
2809 /* We only have SW crypto and only implement the A-MPDU API
2810 * (but don't really build A-MPDUs) so can have extended key
2813 ieee80211_hw_set(hw, EXT_KEY_ID_NATIVE);
2815 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
2816 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
2818 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2819 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2820 WIPHY_FLAG_AP_UAPSD |
2821 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2822 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2823 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2824 NL80211_FEATURE_STATIC_SMPS |
2825 NL80211_FEATURE_DYNAMIC_SMPS |
2826 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2827 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
2829 hw->wiphy->interface_modes = param->iftypes;
2831 /* ask mac80211 to reserve space for magic */
2832 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2833 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2834 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2836 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2837 sizeof(hwsim_channels_2ghz));
2838 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2839 sizeof(hwsim_channels_5ghz));
2840 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2842 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
2843 struct ieee80211_supported_band *sband = &data->bands[band];
2848 case NL80211_BAND_2GHZ:
2849 sband->channels = data->channels_2ghz;
2850 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2851 sband->bitrates = data->rates;
2852 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2854 case NL80211_BAND_5GHZ:
2855 sband->channels = data->channels_5ghz;
2856 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2857 sband->bitrates = data->rates + 4;
2858 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2860 sband->vht_cap.vht_supported = true;
2861 sband->vht_cap.cap =
2862 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2863 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2864 IEEE80211_VHT_CAP_RXLDPC |
2865 IEEE80211_VHT_CAP_SHORT_GI_80 |
2866 IEEE80211_VHT_CAP_SHORT_GI_160 |
2867 IEEE80211_VHT_CAP_TXSTBC |
2868 IEEE80211_VHT_CAP_RXSTBC_4 |
2869 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2870 sband->vht_cap.vht_mcs.rx_mcs_map =
2871 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2872 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
2873 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2874 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2875 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
2876 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2877 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2878 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
2879 sband->vht_cap.vht_mcs.tx_mcs_map =
2880 sband->vht_cap.vht_mcs.rx_mcs_map;
2886 sband->ht_cap.ht_supported = true;
2887 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2888 IEEE80211_HT_CAP_GRN_FLD |
2889 IEEE80211_HT_CAP_SGI_20 |
2890 IEEE80211_HT_CAP_SGI_40 |
2891 IEEE80211_HT_CAP_DSSSCCK40;
2892 sband->ht_cap.ampdu_factor = 0x3;
2893 sband->ht_cap.ampdu_density = 0x6;
2894 memset(&sband->ht_cap.mcs, 0,
2895 sizeof(sband->ht_cap.mcs));
2896 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2897 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2898 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2900 mac80211_hswim_he_capab(sband);
2902 hw->wiphy->bands[band] = sband;
2905 /* By default all radios belong to the first group */
2907 mutex_init(&data->mutex);
2909 data->netgroup = hwsim_net_get_netgroup(net);
2910 data->wmediumd = hwsim_net_get_wmediumd(net);
2912 /* Enable frame retransmissions for lossy channels */
2914 hw->max_rate_tries = 11;
2916 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2917 hw->wiphy->n_vendor_commands =
2918 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2919 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2920 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2922 if (param->reg_strict)
2923 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2925 data->regd = param->regd;
2926 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2927 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
2928 /* give the regulatory workqueue a chance to run */
2929 schedule_timeout_interruptible(1);
2933 ieee80211_hw_set(hw, NO_AUTO_VIF);
2935 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2937 hrtimer_init(&data->beacon_timer, CLOCK_MONOTONIC,
2938 HRTIMER_MODE_ABS_SOFT);
2939 data->beacon_timer.function = mac80211_hwsim_beacon;
2941 err = ieee80211_register_hw(hw);
2943 pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2948 wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2950 if (param->reg_alpha2) {
2951 data->alpha2[0] = param->reg_alpha2[0];
2952 data->alpha2[1] = param->reg_alpha2[1];
2953 regulatory_hint(hw->wiphy, param->reg_alpha2);
2956 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2957 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2958 debugfs_create_file("group", 0666, data->debugfs, data,
2960 if (!data->use_chanctx)
2961 debugfs_create_file("dfs_simulate_radar", 0222,
2963 data, &hwsim_simulate_radar);
2965 spin_lock_bh(&hwsim_radio_lock);
2966 err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
2970 GENL_SET_ERR_MSG(info, "perm addr already present");
2971 NL_SET_BAD_ATTR(info->extack,
2972 info->attrs[HWSIM_ATTR_PERM_ADDR]);
2974 spin_unlock_bh(&hwsim_radio_lock);
2975 goto failed_final_insert;
2978 list_add_tail(&data->list, &hwsim_radios);
2979 hwsim_radios_generation++;
2980 spin_unlock_bh(&hwsim_radio_lock);
2982 hwsim_mcast_new_radio(idx, info, param);
2986 failed_final_insert:
2987 debugfs_remove_recursive(data->debugfs);
2988 ieee80211_unregister_hw(data->hw);
2990 device_release_driver(data->dev);
2992 device_unregister(data->dev);
2994 ieee80211_free_hw(hw);
2999 static void hwsim_mcast_del_radio(int id, const char *hwname,
3000 struct genl_info *info)
3002 struct sk_buff *skb;
3006 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3010 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
3011 HWSIM_CMD_DEL_RADIO);
3015 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
3019 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
3024 genlmsg_end(skb, data);
3026 hwsim_mcast_config_msg(skb, info);
3034 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
3036 struct genl_info *info)
3038 hwsim_mcast_del_radio(data->idx, hwname, info);
3039 debugfs_remove_recursive(data->debugfs);
3040 ieee80211_unregister_hw(data->hw);
3041 device_release_driver(data->dev);
3042 device_unregister(data->dev);
3043 ieee80211_free_hw(data->hw);
3046 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
3047 struct mac80211_hwsim_data *data,
3048 u32 portid, u32 seq,
3049 struct netlink_callback *cb, int flags)
3052 struct hwsim_new_radio_params param = { };
3053 int res = -EMSGSIZE;
3055 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
3056 HWSIM_CMD_GET_RADIO);
3061 genl_dump_check_consistent(cb, hdr);
3063 if (data->alpha2[0] && data->alpha2[1])
3064 param.reg_alpha2 = data->alpha2;
3066 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
3067 REGULATORY_STRICT_REG);
3068 param.p2p_device = !!(data->hw->wiphy->interface_modes &
3069 BIT(NL80211_IFTYPE_P2P_DEVICE));
3070 param.use_chanctx = data->use_chanctx;
3071 param.regd = data->regd;
3072 param.channels = data->channels;
3073 param.hwname = wiphy_name(data->hw->wiphy);
3075 res = append_radio_msg(skb, data->idx, ¶m);
3079 genlmsg_end(skb, hdr);
3083 genlmsg_cancel(skb, hdr);
3087 static void mac80211_hwsim_free(void)
3089 struct mac80211_hwsim_data *data;
3091 spin_lock_bh(&hwsim_radio_lock);
3092 while ((data = list_first_entry_or_null(&hwsim_radios,
3093 struct mac80211_hwsim_data,
3095 list_del(&data->list);
3096 spin_unlock_bh(&hwsim_radio_lock);
3097 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3099 spin_lock_bh(&hwsim_radio_lock);
3101 spin_unlock_bh(&hwsim_radio_lock);
3102 class_destroy(hwsim_class);
3105 static const struct net_device_ops hwsim_netdev_ops = {
3106 .ndo_start_xmit = hwsim_mon_xmit,
3107 .ndo_set_mac_address = eth_mac_addr,
3108 .ndo_validate_addr = eth_validate_addr,
3111 static void hwsim_mon_setup(struct net_device *dev)
3113 dev->netdev_ops = &hwsim_netdev_ops;
3114 dev->needs_free_netdev = true;
3116 dev->priv_flags |= IFF_NO_QUEUE;
3117 dev->type = ARPHRD_IEEE80211_RADIOTAP;
3118 eth_zero_addr(dev->dev_addr);
3119 dev->dev_addr[0] = 0x12;
3122 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
3124 return rhashtable_lookup_fast(&hwsim_radios_rht,
3129 static void hwsim_register_wmediumd(struct net *net, u32 portid)
3131 struct mac80211_hwsim_data *data;
3133 hwsim_net_set_wmediumd(net, portid);
3135 spin_lock_bh(&hwsim_radio_lock);
3136 list_for_each_entry(data, &hwsim_radios, list) {
3137 if (data->netgroup == hwsim_net_get_netgroup(net))
3138 data->wmediumd = portid;
3140 spin_unlock_bh(&hwsim_radio_lock);
3143 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
3144 struct genl_info *info)
3147 struct ieee80211_hdr *hdr;
3148 struct mac80211_hwsim_data *data2;
3149 struct ieee80211_tx_info *txi;
3150 struct hwsim_tx_rate *tx_attempts;
3152 struct sk_buff *skb, *tmp;
3154 unsigned int hwsim_flags;
3158 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
3159 !info->attrs[HWSIM_ATTR_FLAGS] ||
3160 !info->attrs[HWSIM_ATTR_COOKIE] ||
3161 !info->attrs[HWSIM_ATTR_SIGNAL] ||
3162 !info->attrs[HWSIM_ATTR_TX_INFO])
3165 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
3166 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
3167 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
3169 data2 = get_hwsim_data_ref_from_addr(src);
3173 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3176 if (info->snd_portid != data2->wmediumd)
3179 /* look for the skb matching the cookie passed back from user */
3180 skb_queue_walk_safe(&data2->pending, skb, tmp) {
3183 txi = IEEE80211_SKB_CB(skb);
3184 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
3186 if (skb_cookie == ret_skb_cookie) {
3187 skb_unlink(skb, &data2->pending);
3197 /* Tx info received because the frame was broadcasted on user space,
3198 so we get all the necessary info: tx attempts and skb control buff */
3200 tx_attempts = (struct hwsim_tx_rate *)nla_data(
3201 info->attrs[HWSIM_ATTR_TX_INFO]);
3203 /* now send back TX status */
3204 txi = IEEE80211_SKB_CB(skb);
3206 ieee80211_tx_info_clear_status(txi);
3208 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
3209 txi->status.rates[i].idx = tx_attempts[i].idx;
3210 txi->status.rates[i].count = tx_attempts[i].count;
3213 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3215 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
3216 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
3217 if (skb->len >= 16) {
3218 hdr = (struct ieee80211_hdr *) skb->data;
3219 mac80211_hwsim_monitor_ack(data2->channel,
3222 txi->flags |= IEEE80211_TX_STAT_ACK;
3224 ieee80211_tx_status_irqsafe(data2->hw, skb);
3231 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
3232 struct genl_info *info)
3234 struct mac80211_hwsim_data *data2;
3235 struct ieee80211_rx_status rx_status;
3239 struct sk_buff *skb = NULL;
3241 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
3242 !info->attrs[HWSIM_ATTR_FRAME] ||
3243 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3244 !info->attrs[HWSIM_ATTR_SIGNAL])
3247 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
3248 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
3249 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
3251 /* Allocate new skb here */
3252 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3256 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
3260 skb_put_data(skb, frame_data, frame_data_len);
3262 data2 = get_hwsim_data_ref_from_addr(dst);
3266 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3269 if (info->snd_portid != data2->wmediumd)
3272 /* check if radio is configured properly */
3274 if (data2->idle || !data2->started)
3277 /* A frame is received from user space */
3278 memset(&rx_status, 0, sizeof(rx_status));
3279 if (info->attrs[HWSIM_ATTR_FREQ]) {
3280 /* throw away off-channel packets, but allow both the temporary
3281 * ("hw" scan/remain-on-channel) and regular channel, since the
3282 * internal datapath also allows this
3284 mutex_lock(&data2->mutex);
3285 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3287 if (rx_status.freq != data2->channel->center_freq &&
3288 (!data2->tmp_chan ||
3289 rx_status.freq != data2->tmp_chan->center_freq)) {
3290 mutex_unlock(&data2->mutex);
3293 mutex_unlock(&data2->mutex);
3295 rx_status.freq = data2->channel->center_freq;
3298 rx_status.band = data2->channel->band;
3299 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3300 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3302 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
3304 data2->rx_bytes += skb->len;
3305 ieee80211_rx_irqsafe(data2->hw, skb);
3309 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3315 static int hwsim_register_received_nl(struct sk_buff *skb_2,
3316 struct genl_info *info)
3318 struct net *net = genl_info_net(info);
3319 struct mac80211_hwsim_data *data;
3322 spin_lock_bh(&hwsim_radio_lock);
3323 list_for_each_entry(data, &hwsim_radios, list)
3324 chans = max(chans, data->channels);
3325 spin_unlock_bh(&hwsim_radio_lock);
3327 /* In the future we should revise the userspace API and allow it
3328 * to set a flag that it does support multi-channel, then we can
3329 * let this pass conditionally on the flag.
3330 * For current userspace, prohibit it since it won't work right.
3335 if (hwsim_net_get_wmediumd(net))
3338 hwsim_register_wmediumd(net, info->snd_portid);
3340 pr_debug("mac80211_hwsim: received a REGISTER, "
3341 "switching to wmediumd mode with pid %d\n", info->snd_portid);
3346 /* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
3347 static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
3351 for (i = 0; i < n_ciphers; i++) {
3355 for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
3356 if (ciphers[i] == hwsim_ciphers[j]) {
3369 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
3371 struct hwsim_new_radio_params param = { 0 };
3372 const char *hwname = NULL;
3375 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3376 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3377 param.channels = channels;
3378 param.destroy_on_close =
3379 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
3381 if (info->attrs[HWSIM_ATTR_CHANNELS])
3382 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
3384 if (param.channels < 1) {
3385 GENL_SET_ERR_MSG(info, "must have at least one channel");
3389 if (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) {
3390 GENL_SET_ERR_MSG(info, "too many channels specified");
3394 if (info->attrs[HWSIM_ATTR_NO_VIF])
3395 param.no_vif = true;
3397 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
3398 param.use_chanctx = true;
3400 param.use_chanctx = (param.channels > 1);
3402 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
3404 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
3406 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3407 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3409 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3412 idx = array_index_nospec(idx,
3413 ARRAY_SIZE(hwsim_world_regdom_custom));
3414 param.regd = hwsim_world_regdom_custom[idx];
3417 if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
3418 if (!is_valid_ether_addr(
3419 nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
3420 GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
3421 NL_SET_BAD_ATTR(info->extack,
3422 info->attrs[HWSIM_ATTR_PERM_ADDR]);
3426 param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
3429 if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
3431 nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
3433 if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
3434 NL_SET_ERR_MSG_ATTR(info->extack,
3435 info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
3436 "cannot support more iftypes than kernel");
3440 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
3443 /* ensure both flag and iftype support is honored */
3444 if (param.p2p_device ||
3445 param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
3446 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
3447 param.p2p_device = true;
3450 if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
3451 u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3454 nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3456 if (len % sizeof(u32)) {
3457 NL_SET_ERR_MSG_ATTR(info->extack,
3458 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3459 "bad cipher list length");
3463 param.n_ciphers = len / sizeof(u32);
3465 if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
3466 NL_SET_ERR_MSG_ATTR(info->extack,
3467 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3468 "too many ciphers specified");
3472 if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
3473 NL_SET_ERR_MSG_ATTR(info->extack,
3474 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3475 "unsupported ciphers specified");
3480 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3481 hwname = kasprintf(GFP_KERNEL, "%.*s",
3482 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3483 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3486 param.hwname = hwname;
3489 ret = mac80211_hwsim_new_radio(info, ¶m);
3494 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
3496 struct mac80211_hwsim_data *data;
3498 const char *hwname = NULL;
3500 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
3501 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3502 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3503 hwname = kasprintf(GFP_KERNEL, "%.*s",
3504 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3505 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3511 spin_lock_bh(&hwsim_radio_lock);
3512 list_for_each_entry(data, &hwsim_radios, list) {
3514 if (data->idx != idx)
3518 strcmp(hwname, wiphy_name(data->hw->wiphy)))
3522 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3525 list_del(&data->list);
3526 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3528 hwsim_radios_generation++;
3529 spin_unlock_bh(&hwsim_radio_lock);
3530 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3535 spin_unlock_bh(&hwsim_radio_lock);
3541 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3543 struct mac80211_hwsim_data *data;
3544 struct sk_buff *skb;
3545 int idx, res = -ENODEV;
3547 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3549 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3551 spin_lock_bh(&hwsim_radio_lock);
3552 list_for_each_entry(data, &hwsim_radios, list) {
3553 if (data->idx != idx)
3556 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3559 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
3565 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3566 info->snd_seq, NULL, 0);
3572 res = genlmsg_reply(skb, info);
3577 spin_unlock_bh(&hwsim_radio_lock);
3582 static int hwsim_dump_radio_nl(struct sk_buff *skb,
3583 struct netlink_callback *cb)
3585 int last_idx = cb->args[0] - 1;
3586 struct mac80211_hwsim_data *data = NULL;
3590 spin_lock_bh(&hwsim_radio_lock);
3591 cb->seq = hwsim_radios_generation;
3593 if (last_idx >= hwsim_radio_idx-1)
3596 list_for_each_entry(data, &hwsim_radios, list) {
3597 if (data->idx <= last_idx)
3600 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3603 res = mac80211_hwsim_get_radio(skb, data,
3604 NETLINK_CB(cb->skb).portid,
3605 cb->nlh->nlmsg_seq, cb,
3610 last_idx = data->idx;
3613 cb->args[0] = last_idx + 1;
3615 /* list changed, but no new element sent, set interrupted flag */
3616 if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) {
3617 hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
3618 cb->nlh->nlmsg_seq, &hwsim_genl_family,
3619 NLM_F_MULTI, HWSIM_CMD_GET_RADIO);
3622 genl_dump_check_consistent(cb, hdr);
3623 genlmsg_end(skb, hdr);
3627 spin_unlock_bh(&hwsim_radio_lock);
3628 return res ?: skb->len;
3631 /* Generic Netlink operations array */
3632 static const struct genl_ops hwsim_ops[] = {
3634 .cmd = HWSIM_CMD_REGISTER,
3635 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3636 .doit = hwsim_register_received_nl,
3637 .flags = GENL_UNS_ADMIN_PERM,
3640 .cmd = HWSIM_CMD_FRAME,
3641 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3642 .doit = hwsim_cloned_frame_received_nl,
3645 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3646 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3647 .doit = hwsim_tx_info_frame_received_nl,
3650 .cmd = HWSIM_CMD_NEW_RADIO,
3651 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3652 .doit = hwsim_new_radio_nl,
3653 .flags = GENL_UNS_ADMIN_PERM,
3656 .cmd = HWSIM_CMD_DEL_RADIO,
3657 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3658 .doit = hwsim_del_radio_nl,
3659 .flags = GENL_UNS_ADMIN_PERM,
3662 .cmd = HWSIM_CMD_GET_RADIO,
3663 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3664 .doit = hwsim_get_radio_nl,
3665 .dumpit = hwsim_dump_radio_nl,
3669 static struct genl_family hwsim_genl_family __ro_after_init = {
3670 .name = "MAC80211_HWSIM",
3672 .maxattr = HWSIM_ATTR_MAX,
3673 .policy = hwsim_genl_policy,
3675 .module = THIS_MODULE,
3677 .n_ops = ARRAY_SIZE(hwsim_ops),
3678 .mcgrps = hwsim_mcgrps,
3679 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3682 static void remove_user_radios(u32 portid)
3684 struct mac80211_hwsim_data *entry, *tmp;
3687 spin_lock_bh(&hwsim_radio_lock);
3688 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3689 if (entry->destroy_on_close && entry->portid == portid) {
3690 list_move(&entry->list, &list);
3691 rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
3693 hwsim_radios_generation++;
3696 spin_unlock_bh(&hwsim_radio_lock);
3698 list_for_each_entry_safe(entry, tmp, &list, list) {
3699 list_del(&entry->list);
3700 mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy),
3705 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3706 unsigned long state,
3709 struct netlink_notify *notify = _notify;
3711 if (state != NETLINK_URELEASE)
3714 remove_user_radios(notify->portid);
3716 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
3717 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3718 " socket, switching to perfect channel medium\n");
3719 hwsim_register_wmediumd(notify->net, 0);
3725 static struct notifier_block hwsim_netlink_notifier = {
3726 .notifier_call = mac80211_hwsim_netlink_notify,
3729 static int __init hwsim_init_netlink(void)
3733 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3735 rc = genl_register_family(&hwsim_genl_family);
3739 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3741 genl_unregister_family(&hwsim_genl_family);
3748 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3752 static __net_init int hwsim_init_net(struct net *net)
3754 return hwsim_net_set_netgroup(net);
3757 static void __net_exit hwsim_exit_net(struct net *net)
3759 struct mac80211_hwsim_data *data, *tmp;
3762 spin_lock_bh(&hwsim_radio_lock);
3763 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3764 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3767 /* Radios created in init_net are returned to init_net. */
3768 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3771 list_move(&data->list, &list);
3772 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3774 hwsim_radios_generation++;
3776 spin_unlock_bh(&hwsim_radio_lock);
3778 list_for_each_entry_safe(data, tmp, &list, list) {
3779 list_del(&data->list);
3780 mac80211_hwsim_del_radio(data,
3781 wiphy_name(data->hw->wiphy),
3785 ida_simple_remove(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net));
3788 static struct pernet_operations hwsim_net_ops = {
3789 .init = hwsim_init_net,
3790 .exit = hwsim_exit_net,
3791 .id = &hwsim_net_id,
3792 .size = sizeof(struct hwsim_net),
3795 static void hwsim_exit_netlink(void)
3797 /* unregister the notifier */
3798 netlink_unregister_notifier(&hwsim_netlink_notifier);
3799 /* unregister the family */
3800 genl_unregister_family(&hwsim_genl_family);
3803 static int __init init_mac80211_hwsim(void)
3807 if (radios < 0 || radios > 100)
3813 spin_lock_init(&hwsim_radio_lock);
3815 err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
3819 err = register_pernet_device(&hwsim_net_ops);
3823 err = platform_driver_register(&mac80211_hwsim_driver);
3825 goto out_unregister_pernet;
3827 err = hwsim_init_netlink();
3829 goto out_unregister_driver;
3831 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3832 if (IS_ERR(hwsim_class)) {
3833 err = PTR_ERR(hwsim_class);
3834 goto out_exit_netlink;
3837 for (i = 0; i < radios; i++) {
3838 struct hwsim_new_radio_params param = { 0 };
3840 param.channels = channels;
3843 case HWSIM_REGTEST_DIFF_COUNTRY:
3844 if (i < ARRAY_SIZE(hwsim_alpha2s))
3845 param.reg_alpha2 = hwsim_alpha2s[i];
3847 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3849 param.reg_alpha2 = hwsim_alpha2s[0];
3851 case HWSIM_REGTEST_STRICT_ALL:
3852 param.reg_strict = true;
3854 case HWSIM_REGTEST_DRIVER_REG_ALL:
3855 param.reg_alpha2 = hwsim_alpha2s[0];
3857 case HWSIM_REGTEST_WORLD_ROAM:
3859 param.regd = &hwsim_world_regdom_custom_01;
3861 case HWSIM_REGTEST_CUSTOM_WORLD:
3862 param.regd = &hwsim_world_regdom_custom_01;
3864 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3866 param.regd = &hwsim_world_regdom_custom_01;
3868 param.regd = &hwsim_world_regdom_custom_02;
3870 case HWSIM_REGTEST_STRICT_FOLLOW:
3872 param.reg_strict = true;
3873 param.reg_alpha2 = hwsim_alpha2s[0];
3876 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
3878 param.reg_strict = true;
3879 param.reg_alpha2 = hwsim_alpha2s[0];
3880 } else if (i == 1) {
3881 param.reg_alpha2 = hwsim_alpha2s[1];
3884 case HWSIM_REGTEST_ALL:
3887 param.regd = &hwsim_world_regdom_custom_01;
3890 param.regd = &hwsim_world_regdom_custom_02;
3893 param.reg_alpha2 = hwsim_alpha2s[0];
3896 param.reg_alpha2 = hwsim_alpha2s[1];
3899 param.reg_strict = true;
3900 param.reg_alpha2 = hwsim_alpha2s[2];
3908 param.p2p_device = support_p2p_device;
3909 param.use_chanctx = channels > 1;
3910 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
3911 if (param.p2p_device)
3912 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
3914 err = mac80211_hwsim_new_radio(NULL, ¶m);
3916 goto out_free_radios;
3919 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3921 if (hwsim_mon == NULL) {
3923 goto out_free_radios;
3927 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3930 goto out_free_radios;
3933 err = register_netdevice(hwsim_mon);
3943 free_netdev(hwsim_mon);
3945 mac80211_hwsim_free();
3947 hwsim_exit_netlink();
3948 out_unregister_driver:
3949 platform_driver_unregister(&mac80211_hwsim_driver);
3950 out_unregister_pernet:
3951 unregister_pernet_device(&hwsim_net_ops);
3953 rhashtable_destroy(&hwsim_radios_rht);
3956 module_init(init_mac80211_hwsim);
3958 static void __exit exit_mac80211_hwsim(void)
3960 pr_debug("mac80211_hwsim: unregister radios\n");
3962 hwsim_exit_netlink();
3964 mac80211_hwsim_free();
3966 rhashtable_destroy(&hwsim_radios_rht);
3967 unregister_netdev(hwsim_mon);
3968 platform_driver_unregister(&mac80211_hwsim_driver);
3969 unregister_pernet_device(&hwsim_net_ops);
3971 module_exit(exit_mac80211_hwsim);