2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
5 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
6 * Copyright (C) 2018 Intel Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
15 * - Add TSF sync and fix IBSS beacon transmission by adding
16 * competition for "air time" at TBTT
17 * - RX filtering based on filter configuration (data->rx_filter)
20 #include <linux/list.h>
21 #include <linux/slab.h>
22 #include <linux/spinlock.h>
25 #include <net/mac80211.h>
26 #include <net/ieee80211_radiotap.h>
27 #include <linux/if_arp.h>
28 #include <linux/rtnetlink.h>
29 #include <linux/etherdevice.h>
30 #include <linux/platform_device.h>
31 #include <linux/debugfs.h>
32 #include <linux/module.h>
33 #include <linux/ktime.h>
34 #include <net/genetlink.h>
35 #include <net/net_namespace.h>
36 #include <net/netns/generic.h>
37 #include <linux/rhashtable.h>
38 #include <linux/nospec.h>
39 #include "mac80211_hwsim.h"
41 #define WARN_QUEUE 100
44 MODULE_AUTHOR("Jouni Malinen");
45 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
46 MODULE_LICENSE("GPL");
48 static int radios = 2;
49 module_param(radios, int, 0444);
50 MODULE_PARM_DESC(radios, "Number of simulated radios");
52 static int channels = 1;
53 module_param(channels, int, 0444);
54 MODULE_PARM_DESC(channels, "Number of concurrent channels");
56 static bool paged_rx = false;
57 module_param(paged_rx, bool, 0644);
58 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
60 static bool rctbl = false;
61 module_param(rctbl, bool, 0444);
62 MODULE_PARM_DESC(rctbl, "Handle rate control table");
64 static bool support_p2p_device = true;
65 module_param(support_p2p_device, bool, 0444);
66 MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
69 * enum hwsim_regtest - the type of regulatory tests we offer
71 * These are the different values you can use for the regtest
72 * module parameter. This is useful to help test world roaming
73 * and the driver regulatory_hint() call and combinations of these.
74 * If you want to do specific alpha2 regulatory domain tests simply
75 * use the userspace regulatory request as that will be respected as
76 * well without the need of this module parameter. This is designed
77 * only for testing the driver regulatory request, world roaming
78 * and all possible combinations.
80 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
81 * this is the default value.
82 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
83 * hint, only one driver regulatory hint will be sent as such the
84 * secondary radios are expected to follow.
85 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
86 * request with all radios reporting the same regulatory domain.
87 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
88 * different regulatory domains requests. Expected behaviour is for
89 * an intersection to occur but each device will still use their
90 * respective regulatory requested domains. Subsequent radios will
91 * use the resulting intersection.
92 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
93 * this by using a custom beacon-capable regulatory domain for the first
94 * radio. All other device world roam.
95 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
96 * domain requests. All radios will adhere to this custom world regulatory
98 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
99 * domain requests. The first radio will adhere to the first custom world
100 * regulatory domain, the second one to the second custom world regulatory
101 * domain. All other devices will world roam.
102 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
103 * settings, only the first radio will send a regulatory domain request
104 * and use strict settings. The rest of the radios are expected to follow.
105 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
106 * settings. All radios will adhere to this.
107 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
108 * domain settings, combined with secondary driver regulatory domain
109 * settings. The first radio will get a strict regulatory domain setting
110 * using the first driver regulatory request and the second radio will use
111 * non-strict settings using the second driver regulatory request. All
112 * other devices should follow the intersection created between the
114 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
115 * at least 6 radios for a complete test. We will test in this order:
116 * 1 - driver custom world regulatory domain
117 * 2 - second custom world regulatory domain
118 * 3 - first driver regulatory domain request
119 * 4 - second driver regulatory domain request
120 * 5 - strict regulatory domain settings using the third driver regulatory
122 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
123 * regulatory requests.
126 HWSIM_REGTEST_DISABLED = 0,
127 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
128 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
129 HWSIM_REGTEST_DIFF_COUNTRY = 3,
130 HWSIM_REGTEST_WORLD_ROAM = 4,
131 HWSIM_REGTEST_CUSTOM_WORLD = 5,
132 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
133 HWSIM_REGTEST_STRICT_FOLLOW = 7,
134 HWSIM_REGTEST_STRICT_ALL = 8,
135 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
136 HWSIM_REGTEST_ALL = 10,
139 /* Set to one of the HWSIM_REGTEST_* values above */
140 static int regtest = HWSIM_REGTEST_DISABLED;
141 module_param(regtest, int, 0444);
142 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
144 static const char *hwsim_alpha2s[] = {
153 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
157 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
158 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
159 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
160 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
164 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
168 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
169 REG_RULE(5725-10, 5850+10, 40, 0, 30,
174 static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
175 &hwsim_world_regdom_custom_01,
176 &hwsim_world_regdom_custom_02,
179 struct hwsim_vif_priv {
187 #define HWSIM_VIF_MAGIC 0x69537748
189 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
191 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
192 WARN(vp->magic != HWSIM_VIF_MAGIC,
193 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
194 vif, vp->magic, vif->addr, vif->type, vif->p2p);
197 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
199 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
200 vp->magic = HWSIM_VIF_MAGIC;
203 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
205 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
209 struct hwsim_sta_priv {
213 #define HWSIM_STA_MAGIC 0x6d537749
215 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
217 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
218 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
221 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
223 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
224 sp->magic = HWSIM_STA_MAGIC;
227 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
229 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
233 struct hwsim_chanctx_priv {
237 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
239 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
241 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
242 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
245 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
247 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
248 cp->magic = HWSIM_CHANCTX_MAGIC;
251 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
253 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
257 static unsigned int hwsim_net_id;
259 static DEFINE_IDA(hwsim_netgroup_ida);
266 static inline int hwsim_net_get_netgroup(struct net *net)
268 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
270 return hwsim_net->netgroup;
273 static inline int hwsim_net_set_netgroup(struct net *net)
275 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
277 hwsim_net->netgroup = ida_simple_get(&hwsim_netgroup_ida,
279 return hwsim_net->netgroup >= 0 ? 0 : -ENOMEM;
282 static inline u32 hwsim_net_get_wmediumd(struct net *net)
284 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
286 return hwsim_net->wmediumd;
289 static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
291 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
293 hwsim_net->wmediumd = portid;
296 static struct class *hwsim_class;
298 static struct net_device *hwsim_mon; /* global monitor netdev */
300 #define CHAN2G(_freq) { \
301 .band = NL80211_BAND_2GHZ, \
302 .center_freq = (_freq), \
303 .hw_value = (_freq), \
307 #define CHAN5G(_freq) { \
308 .band = NL80211_BAND_5GHZ, \
309 .center_freq = (_freq), \
310 .hw_value = (_freq), \
314 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
315 CHAN2G(2412), /* Channel 1 */
316 CHAN2G(2417), /* Channel 2 */
317 CHAN2G(2422), /* Channel 3 */
318 CHAN2G(2427), /* Channel 4 */
319 CHAN2G(2432), /* Channel 5 */
320 CHAN2G(2437), /* Channel 6 */
321 CHAN2G(2442), /* Channel 7 */
322 CHAN2G(2447), /* Channel 8 */
323 CHAN2G(2452), /* Channel 9 */
324 CHAN2G(2457), /* Channel 10 */
325 CHAN2G(2462), /* Channel 11 */
326 CHAN2G(2467), /* Channel 12 */
327 CHAN2G(2472), /* Channel 13 */
328 CHAN2G(2484), /* Channel 14 */
331 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
332 CHAN5G(5180), /* Channel 36 */
333 CHAN5G(5200), /* Channel 40 */
334 CHAN5G(5220), /* Channel 44 */
335 CHAN5G(5240), /* Channel 48 */
337 CHAN5G(5260), /* Channel 52 */
338 CHAN5G(5280), /* Channel 56 */
339 CHAN5G(5300), /* Channel 60 */
340 CHAN5G(5320), /* Channel 64 */
342 CHAN5G(5500), /* Channel 100 */
343 CHAN5G(5520), /* Channel 104 */
344 CHAN5G(5540), /* Channel 108 */
345 CHAN5G(5560), /* Channel 112 */
346 CHAN5G(5580), /* Channel 116 */
347 CHAN5G(5600), /* Channel 120 */
348 CHAN5G(5620), /* Channel 124 */
349 CHAN5G(5640), /* Channel 128 */
350 CHAN5G(5660), /* Channel 132 */
351 CHAN5G(5680), /* Channel 136 */
352 CHAN5G(5700), /* Channel 140 */
354 CHAN5G(5745), /* Channel 149 */
355 CHAN5G(5765), /* Channel 153 */
356 CHAN5G(5785), /* Channel 157 */
357 CHAN5G(5805), /* Channel 161 */
358 CHAN5G(5825), /* Channel 165 */
359 CHAN5G(5845), /* Channel 169 */
362 static const struct ieee80211_rate hwsim_rates[] = {
364 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
365 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
366 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
377 static const u32 hwsim_ciphers[] = {
378 WLAN_CIPHER_SUITE_WEP40,
379 WLAN_CIPHER_SUITE_WEP104,
380 WLAN_CIPHER_SUITE_TKIP,
381 WLAN_CIPHER_SUITE_CCMP,
382 WLAN_CIPHER_SUITE_CCMP_256,
383 WLAN_CIPHER_SUITE_GCMP,
384 WLAN_CIPHER_SUITE_GCMP_256,
385 WLAN_CIPHER_SUITE_AES_CMAC,
386 WLAN_CIPHER_SUITE_BIP_CMAC_256,
387 WLAN_CIPHER_SUITE_BIP_GMAC_128,
388 WLAN_CIPHER_SUITE_BIP_GMAC_256,
391 #define OUI_QCA 0x001374
392 #define QCA_NL80211_SUBCMD_TEST 1
393 enum qca_nl80211_vendor_subcmds {
394 QCA_WLAN_VENDOR_ATTR_TEST = 8,
395 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
398 static const struct nla_policy
399 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
400 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
403 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
404 struct wireless_dev *wdev,
405 const void *data, int data_len)
408 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
412 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
413 hwsim_vendor_test_policy, NULL);
416 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
418 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
419 wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);
421 /* Send a vendor event as a test. Note that this would not normally be
422 * done within a command handler, but rather, based on some other
423 * trigger. For simplicity, this command is used to trigger the event
426 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
428 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
430 /* skb_put() or nla_put() will fill up data within
431 * NL80211_ATTR_VENDOR_DATA.
434 /* Add vendor data */
435 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
437 /* Send the event - this will call nla_nest_end() */
438 cfg80211_vendor_event(skb, GFP_KERNEL);
441 /* Send a response to the command */
442 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
446 /* skb_put() or nla_put() will fill up data within
447 * NL80211_ATTR_VENDOR_DATA
449 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
451 return cfg80211_vendor_cmd_reply(skb);
454 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
456 .info = { .vendor_id = OUI_QCA,
457 .subcmd = QCA_NL80211_SUBCMD_TEST },
458 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
459 .doit = mac80211_hwsim_vendor_cmd_test,
463 /* Advertise support vendor specific events */
464 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
465 { .vendor_id = OUI_QCA, .subcmd = 1 },
468 static spinlock_t hwsim_radio_lock;
469 static LIST_HEAD(hwsim_radios);
470 static struct rhashtable hwsim_radios_rht;
471 static int hwsim_radio_idx;
472 static int hwsim_radios_generation = 1;
474 static struct platform_driver mac80211_hwsim_driver = {
476 .name = "mac80211_hwsim",
480 struct mac80211_hwsim_data {
481 struct list_head list;
482 struct rhash_head rht;
483 struct ieee80211_hw *hw;
485 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
486 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
487 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
488 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
489 struct ieee80211_iface_combination if_combination;
490 struct ieee80211_iface_limit if_limits[3];
493 u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
495 struct mac_address addresses[2];
498 bool destroy_on_close;
501 const struct ieee80211_regdomain *regd;
503 struct ieee80211_channel *tmp_chan;
504 struct ieee80211_channel *roc_chan;
506 struct delayed_work roc_start;
507 struct delayed_work roc_done;
508 struct delayed_work hw_scan;
509 struct cfg80211_scan_request *hw_scan_request;
510 struct ieee80211_vif *hw_scan_vif;
512 u8 scan_addr[ETH_ALEN];
514 struct ieee80211_channel *channel;
515 unsigned long next_start, start, end;
516 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
517 ARRAY_SIZE(hwsim_channels_5ghz)];
519 struct ieee80211_channel *channel;
520 u64 beacon_int /* beacon interval in us */;
521 unsigned int rx_filter;
522 bool started, idle, scanning;
524 struct tasklet_hrtimer beacon_timer;
526 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
528 bool ps_poll_pending;
529 struct dentry *debugfs;
531 uintptr_t pending_cookie;
532 struct sk_buff_head pending; /* packets pending */
534 * Only radios in the same group can communicate together (the
535 * channel has to match too). Each bit represents a group. A
536 * radio can be in more than one group.
540 /* group shared by radios created in the same netns */
542 /* wmediumd portid responsible for netgroup of this radio */
545 /* difference between this hw's clock and the real clock, in usecs */
548 /* absolute beacon transmission time. Used to cover up "tx" delay. */
560 static const struct rhashtable_params hwsim_rht_params = {
562 .automatic_shrinking = true,
564 .key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
565 .head_offset = offsetof(struct mac80211_hwsim_data, rht),
568 struct hwsim_radiotap_hdr {
569 struct ieee80211_radiotap_header hdr;
577 struct hwsim_radiotap_ack_hdr {
578 struct ieee80211_radiotap_header hdr;
585 /* MAC80211_HWSIM netlink family */
586 static struct genl_family hwsim_genl_family;
588 enum hwsim_multicast_groups {
592 static const struct genl_multicast_group hwsim_mcgrps[] = {
593 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
596 /* MAC80211_HWSIM netlink policy */
598 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
599 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
600 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
601 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
602 .len = IEEE80211_MAX_DATA_LEN },
603 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
604 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
605 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
606 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
607 .len = IEEE80211_TX_MAX_RATES *
608 sizeof(struct hwsim_tx_rate)},
609 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
610 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
611 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
612 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
613 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
614 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
615 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
616 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
617 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
618 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
619 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
620 [HWSIM_ATTR_PERM_ADDR] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
621 [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
622 [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
625 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
627 struct ieee80211_channel *chan);
629 /* sysfs attributes */
630 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
632 struct mac80211_hwsim_data *data = dat;
633 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
635 struct ieee80211_pspoll *pspoll;
640 wiphy_dbg(data->hw->wiphy,
641 "%s: send PS-Poll to %pM for aid %d\n",
642 __func__, vp->bssid, vp->aid);
644 skb = dev_alloc_skb(sizeof(*pspoll));
647 pspoll = skb_put(skb, sizeof(*pspoll));
648 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
649 IEEE80211_STYPE_PSPOLL |
651 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
652 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
653 memcpy(pspoll->ta, mac, ETH_ALEN);
656 mac80211_hwsim_tx_frame(data->hw, skb,
657 rcu_dereference(vif->chanctx_conf)->def.chan);
661 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
662 struct ieee80211_vif *vif, int ps)
664 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
666 struct ieee80211_hdr *hdr;
671 wiphy_dbg(data->hw->wiphy,
672 "%s: send data::nullfunc to %pM ps=%d\n",
673 __func__, vp->bssid, ps);
675 skb = dev_alloc_skb(sizeof(*hdr));
678 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
679 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
680 IEEE80211_STYPE_NULLFUNC |
681 IEEE80211_FCTL_TODS |
682 (ps ? IEEE80211_FCTL_PM : 0));
683 hdr->duration_id = cpu_to_le16(0);
684 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
685 memcpy(hdr->addr2, mac, ETH_ALEN);
686 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
689 mac80211_hwsim_tx_frame(data->hw, skb,
690 rcu_dereference(vif->chanctx_conf)->def.chan);
695 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
696 struct ieee80211_vif *vif)
698 struct mac80211_hwsim_data *data = dat;
699 hwsim_send_nullfunc(data, mac, vif, 1);
702 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
703 struct ieee80211_vif *vif)
705 struct mac80211_hwsim_data *data = dat;
706 hwsim_send_nullfunc(data, mac, vif, 0);
709 static int hwsim_fops_ps_read(void *dat, u64 *val)
711 struct mac80211_hwsim_data *data = dat;
716 static int hwsim_fops_ps_write(void *dat, u64 val)
718 struct mac80211_hwsim_data *data = dat;
721 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
722 val != PS_MANUAL_POLL)
725 if (val == PS_MANUAL_POLL) {
726 if (data->ps != PS_ENABLED)
729 ieee80211_iterate_active_interfaces_atomic(
730 data->hw, IEEE80211_IFACE_ITER_NORMAL,
731 hwsim_send_ps_poll, data);
739 if (old_ps == PS_DISABLED && val != PS_DISABLED) {
740 ieee80211_iterate_active_interfaces_atomic(
741 data->hw, IEEE80211_IFACE_ITER_NORMAL,
742 hwsim_send_nullfunc_ps, data);
743 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
744 ieee80211_iterate_active_interfaces_atomic(
745 data->hw, IEEE80211_IFACE_ITER_NORMAL,
746 hwsim_send_nullfunc_no_ps, data);
753 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
756 static int hwsim_write_simulate_radar(void *dat, u64 val)
758 struct mac80211_hwsim_data *data = dat;
760 ieee80211_radar_detected(data->hw);
765 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
766 hwsim_write_simulate_radar, "%llu\n");
768 static int hwsim_fops_group_read(void *dat, u64 *val)
770 struct mac80211_hwsim_data *data = dat;
775 static int hwsim_fops_group_write(void *dat, u64 val)
777 struct mac80211_hwsim_data *data = dat;
782 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
783 hwsim_fops_group_read, hwsim_fops_group_write,
786 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
787 struct net_device *dev)
789 /* TODO: allow packet injection */
794 static inline u64 mac80211_hwsim_get_tsf_raw(void)
796 return ktime_to_us(ktime_get_real());
799 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
801 u64 now = mac80211_hwsim_get_tsf_raw();
802 return cpu_to_le64(now + data->tsf_offset);
805 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
806 struct ieee80211_vif *vif)
808 struct mac80211_hwsim_data *data = hw->priv;
809 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
812 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
813 struct ieee80211_vif *vif, u64 tsf)
815 struct mac80211_hwsim_data *data = hw->priv;
816 u64 now = mac80211_hwsim_get_tsf(hw, vif);
817 u32 bcn_int = data->beacon_int;
818 u64 delta = abs(tsf - now);
820 /* adjust after beaconing with new timestamp at old TBTT */
822 data->tsf_offset += delta;
823 data->bcn_delta = do_div(delta, bcn_int);
825 data->tsf_offset -= delta;
826 data->bcn_delta = -(s64)do_div(delta, bcn_int);
830 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
831 struct sk_buff *tx_skb,
832 struct ieee80211_channel *chan)
834 struct mac80211_hwsim_data *data = hw->priv;
836 struct hwsim_radiotap_hdr *hdr;
838 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
839 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
841 if (WARN_ON(!txrate))
844 if (!netif_running(hwsim_mon))
847 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
851 hdr = skb_push(skb, sizeof(*hdr));
852 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
854 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
855 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
856 (1 << IEEE80211_RADIOTAP_RATE) |
857 (1 << IEEE80211_RADIOTAP_TSFT) |
858 (1 << IEEE80211_RADIOTAP_CHANNEL));
859 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
861 hdr->rt_rate = txrate->bitrate / 5;
862 hdr->rt_channel = cpu_to_le16(chan->center_freq);
863 flags = IEEE80211_CHAN_2GHZ;
864 if (txrate->flags & IEEE80211_RATE_ERP_G)
865 flags |= IEEE80211_CHAN_OFDM;
867 flags |= IEEE80211_CHAN_CCK;
868 hdr->rt_chbitmask = cpu_to_le16(flags);
870 skb->dev = hwsim_mon;
871 skb_reset_mac_header(skb);
872 skb->ip_summed = CHECKSUM_UNNECESSARY;
873 skb->pkt_type = PACKET_OTHERHOST;
874 skb->protocol = htons(ETH_P_802_2);
875 memset(skb->cb, 0, sizeof(skb->cb));
880 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
884 struct hwsim_radiotap_ack_hdr *hdr;
886 struct ieee80211_hdr *hdr11;
888 if (!netif_running(hwsim_mon))
891 skb = dev_alloc_skb(100);
895 hdr = skb_put(skb, sizeof(*hdr));
896 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
898 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
899 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
900 (1 << IEEE80211_RADIOTAP_CHANNEL));
903 hdr->rt_channel = cpu_to_le16(chan->center_freq);
904 flags = IEEE80211_CHAN_2GHZ;
905 hdr->rt_chbitmask = cpu_to_le16(flags);
907 hdr11 = skb_put(skb, 10);
908 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
909 IEEE80211_STYPE_ACK);
910 hdr11->duration_id = cpu_to_le16(0);
911 memcpy(hdr11->addr1, addr, ETH_ALEN);
913 skb->dev = hwsim_mon;
914 skb_reset_mac_header(skb);
915 skb->ip_summed = CHECKSUM_UNNECESSARY;
916 skb->pkt_type = PACKET_OTHERHOST;
917 skb->protocol = htons(ETH_P_802_2);
918 memset(skb->cb, 0, sizeof(skb->cb));
922 struct mac80211_hwsim_addr_match_data {
927 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
928 struct ieee80211_vif *vif)
930 struct mac80211_hwsim_addr_match_data *md = data;
932 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
936 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
939 struct mac80211_hwsim_addr_match_data md = {
943 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
946 memcpy(md.addr, addr, ETH_ALEN);
948 ieee80211_iterate_active_interfaces_atomic(data->hw,
949 IEEE80211_IFACE_ITER_NORMAL,
950 mac80211_hwsim_addr_iter,
956 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
965 /* TODO: accept (some) Beacons by default and other frames only
966 * if pending PS-Poll has been sent */
969 /* Allow unicast frames to own address if there is a pending
971 if (data->ps_poll_pending &&
972 mac80211_hwsim_addr_match(data, skb->data + 4)) {
973 data->ps_poll_pending = false;
982 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
983 struct sk_buff *skb, int portid)
990 for_each_net_rcu(net) {
991 if (data->netgroup == hwsim_net_get_netgroup(net)) {
992 res = genlmsg_unicast(net, skb, portid);
1005 static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1009 if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1010 result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1011 if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1012 result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1013 if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1014 result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1015 if (rate->flags & IEEE80211_TX_RC_MCS)
1016 result |= MAC80211_HWSIM_TX_RC_MCS;
1017 if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1018 result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1019 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1020 result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1021 if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1022 result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1023 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1024 result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1025 if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1026 result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1027 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1028 result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1029 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1030 result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1035 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1036 struct sk_buff *my_skb,
1039 struct sk_buff *skb;
1040 struct mac80211_hwsim_data *data = hw->priv;
1041 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1042 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1044 unsigned int hwsim_flags = 0;
1046 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1047 struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
1050 if (data->ps != PS_DISABLED)
1051 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1052 /* If the queue contains MAX_QUEUE skb's drop some */
1053 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1054 /* Droping until WARN_QUEUE level */
1055 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1056 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1061 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1063 goto nla_put_failure;
1065 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1067 if (msg_head == NULL) {
1068 pr_debug("mac80211_hwsim: problem with msg_head\n");
1069 goto nla_put_failure;
1072 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1073 ETH_ALEN, data->addresses[1].addr))
1074 goto nla_put_failure;
1076 /* We get the skb->data */
1077 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1078 goto nla_put_failure;
1080 /* We get the flags for this transmission, and we translate them to
1083 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1084 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1086 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1087 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1089 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1090 goto nla_put_failure;
1092 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1093 goto nla_put_failure;
1095 /* We get the tx control (rate and retries) info*/
1097 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1098 tx_attempts[i].idx = info->status.rates[i].idx;
1099 tx_attempts_flags[i].idx = info->status.rates[i].idx;
1100 tx_attempts[i].count = info->status.rates[i].count;
1101 tx_attempts_flags[i].flags =
1102 trans_tx_rate_flags_ieee2hwsim(
1103 &info->status.rates[i]);
1106 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1107 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1109 goto nla_put_failure;
1111 if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1112 sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1114 goto nla_put_failure;
1116 /* We create a cookie to identify this skb */
1117 data->pending_cookie++;
1118 cookie = data->pending_cookie;
1119 info->rate_driver_data[0] = (void *)cookie;
1120 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1121 goto nla_put_failure;
1123 genlmsg_end(skb, msg_head);
1124 if (hwsim_unicast_netgroup(data, skb, dst_portid))
1125 goto err_free_txskb;
1127 /* Enqueue the packet */
1128 skb_queue_tail(&data->pending, my_skb);
1130 data->tx_bytes += my_skb->len;
1136 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
1137 ieee80211_free_txskb(hw, my_skb);
1141 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1142 struct ieee80211_channel *c2)
1147 return c1->center_freq == c2->center_freq;
1150 struct tx_iter_data {
1151 struct ieee80211_channel *channel;
1155 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1156 struct ieee80211_vif *vif)
1158 struct tx_iter_data *data = _data;
1160 if (!vif->chanctx_conf)
1163 if (!hwsim_chans_compat(data->channel,
1164 rcu_dereference(vif->chanctx_conf)->def.chan))
1167 data->receive = true;
1170 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1173 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1175 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1176 * (but you should use a valid OUI, not that)
1178 * If anyone wants to 'donate' a radiotap OUI/subns code
1179 * please send a patch removing this #ifdef and changing
1180 * the values accordingly.
1182 #ifdef HWSIM_RADIOTAP_OUI
1183 struct ieee80211_vendor_radiotap *rtap;
1186 * Note that this code requires the headroom in the SKB
1187 * that was allocated earlier.
1189 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1190 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1191 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1192 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1196 * Radiotap vendor namespaces can (and should) also be
1197 * split into fields by using the standard radiotap
1198 * presence bitmap mechanism. Use just BIT(0) here for
1199 * the presence bitmap.
1201 rtap->present = BIT(0);
1202 /* We have 8 bytes of (dummy) data */
1204 /* For testing, also require it to be aligned */
1206 /* And also test that padding works, 4 bytes */
1209 memcpy(rtap->data, "ABCDEFGH", 8);
1210 /* make sure to clear padding, mac80211 doesn't */
1211 memset(rtap->data + 8, 0, 4);
1213 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1217 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1218 struct sk_buff *skb,
1219 struct ieee80211_channel *chan)
1221 struct mac80211_hwsim_data *data = hw->priv, *data2;
1223 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1224 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1225 struct ieee80211_rx_status rx_status;
1228 memset(&rx_status, 0, sizeof(rx_status));
1229 rx_status.flag |= RX_FLAG_MACTIME_START;
1230 rx_status.freq = chan->center_freq;
1231 rx_status.band = chan->band;
1232 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1233 rx_status.rate_idx =
1234 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1236 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1237 rx_status.encoding = RX_ENC_VHT;
1239 rx_status.rate_idx = info->control.rates[0].idx;
1240 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1241 rx_status.encoding = RX_ENC_HT;
1243 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1244 rx_status.bw = RATE_INFO_BW_40;
1245 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1246 rx_status.bw = RATE_INFO_BW_80;
1247 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1248 rx_status.bw = RATE_INFO_BW_160;
1250 rx_status.bw = RATE_INFO_BW_20;
1251 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1252 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1253 /* TODO: simulate real signal strength (and optional packet loss) */
1254 rx_status.signal = -50;
1255 if (info->control.vif)
1256 rx_status.signal += info->control.vif->bss_conf.txpower;
1258 if (data->ps != PS_DISABLED)
1259 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1261 /* release the skb's source info */
1269 * Get absolute mactime here so all HWs RX at the "same time", and
1270 * absolute TX time for beacon mactime so the timestamp matches.
1271 * Giving beacons a different mactime than non-beacons looks messy, but
1272 * it helps the Toffset be exact and a ~10us mactime discrepancy
1273 * probably doesn't really matter.
1275 if (ieee80211_is_beacon(hdr->frame_control) ||
1276 ieee80211_is_probe_resp(hdr->frame_control))
1277 now = data->abs_bcn_ts;
1279 now = mac80211_hwsim_get_tsf_raw();
1281 /* Copy skb to all enabled radios that are on the current frequency */
1282 spin_lock(&hwsim_radio_lock);
1283 list_for_each_entry(data2, &hwsim_radios, list) {
1284 struct sk_buff *nskb;
1285 struct tx_iter_data tx_iter_data = {
1293 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1294 !hwsim_ps_rx_ok(data2, skb))
1297 if (!(data->group & data2->group))
1300 if (data->netgroup != data2->netgroup)
1303 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1304 !hwsim_chans_compat(chan, data2->channel)) {
1305 ieee80211_iterate_active_interfaces_atomic(
1306 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1307 mac80211_hwsim_tx_iter, &tx_iter_data);
1308 if (!tx_iter_data.receive)
1313 * reserve some space for our vendor and the normal
1314 * radiotap header, since we're copying anyway
1316 if (skb->len < PAGE_SIZE && paged_rx) {
1317 struct page *page = alloc_page(GFP_ATOMIC);
1322 nskb = dev_alloc_skb(128);
1328 memcpy(page_address(page), skb->data, skb->len);
1329 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1331 nskb = skb_copy(skb, GFP_ATOMIC);
1336 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1339 rx_status.mactime = now + data2->tsf_offset;
1341 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1343 mac80211_hwsim_add_vendor_rtap(nskb);
1346 data2->rx_bytes += nskb->len;
1347 ieee80211_rx_irqsafe(data2->hw, nskb);
1349 spin_unlock(&hwsim_radio_lock);
1354 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1355 struct ieee80211_tx_control *control,
1356 struct sk_buff *skb)
1358 struct mac80211_hwsim_data *data = hw->priv;
1359 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1360 struct ieee80211_hdr *hdr = (void *)skb->data;
1361 struct ieee80211_chanctx_conf *chanctx_conf;
1362 struct ieee80211_channel *channel;
1366 if (WARN_ON(skb->len < 10)) {
1367 /* Should not happen; just a sanity check for addr1 use */
1368 ieee80211_free_txskb(hw, skb);
1372 if (!data->use_chanctx) {
1373 channel = data->channel;
1374 } else if (txi->hw_queue == 4) {
1375 channel = data->tmp_chan;
1377 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1379 channel = chanctx_conf->def.chan;
1384 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1385 ieee80211_free_txskb(hw, skb);
1389 if (data->idle && !data->tmp_chan) {
1390 wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
1391 ieee80211_free_txskb(hw, skb);
1395 if (txi->control.vif)
1396 hwsim_check_magic(txi->control.vif);
1398 hwsim_check_sta_magic(control->sta);
1400 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1401 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1403 ARRAY_SIZE(txi->control.rates));
1405 if (skb->len >= 24 + 8 &&
1406 ieee80211_is_probe_resp(hdr->frame_control)) {
1407 /* fake header transmission time */
1408 struct ieee80211_mgmt *mgmt;
1409 struct ieee80211_rate *txrate;
1412 mgmt = (struct ieee80211_mgmt *)skb->data;
1413 txrate = ieee80211_get_tx_rate(hw, txi);
1414 ts = mac80211_hwsim_get_tsf_raw();
1415 mgmt->u.probe_resp.timestamp =
1416 cpu_to_le64(ts + data->tsf_offset +
1417 24 * 8 * 10 / txrate->bitrate);
1420 mac80211_hwsim_monitor_rx(hw, skb, channel);
1422 /* wmediumd mode check */
1423 _portid = READ_ONCE(data->wmediumd);
1426 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1428 /* NO wmediumd detected, perfect medium simulation */
1430 data->tx_bytes += skb->len;
1431 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1433 if (ack && skb->len >= 16)
1434 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1436 ieee80211_tx_info_clear_status(txi);
1438 /* frame was transmitted at most favorable rate at first attempt */
1439 txi->control.rates[0].count = 1;
1440 txi->control.rates[1].idx = -1;
1442 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1443 txi->flags |= IEEE80211_TX_STAT_ACK;
1444 ieee80211_tx_status_irqsafe(hw, skb);
1448 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1450 struct mac80211_hwsim_data *data = hw->priv;
1451 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1452 data->started = true;
1457 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1459 struct mac80211_hwsim_data *data = hw->priv;
1460 data->started = false;
1461 tasklet_hrtimer_cancel(&data->beacon_timer);
1462 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1466 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1467 struct ieee80211_vif *vif)
1469 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1470 __func__, ieee80211_vif_type_p2p(vif),
1472 hwsim_set_magic(vif);
1475 vif->hw_queue[IEEE80211_AC_VO] = 0;
1476 vif->hw_queue[IEEE80211_AC_VI] = 1;
1477 vif->hw_queue[IEEE80211_AC_BE] = 2;
1478 vif->hw_queue[IEEE80211_AC_BK] = 3;
1484 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1485 struct ieee80211_vif *vif,
1486 enum nl80211_iftype newtype,
1489 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1490 wiphy_dbg(hw->wiphy,
1491 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1492 __func__, ieee80211_vif_type_p2p(vif),
1493 newtype, vif->addr);
1494 hwsim_check_magic(vif);
1497 * interface may change from non-AP to AP in
1498 * which case this needs to be set up again
1505 static void mac80211_hwsim_remove_interface(
1506 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1508 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1509 __func__, ieee80211_vif_type_p2p(vif),
1511 hwsim_check_magic(vif);
1512 hwsim_clear_magic(vif);
1515 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1516 struct sk_buff *skb,
1517 struct ieee80211_channel *chan)
1519 struct mac80211_hwsim_data *data = hw->priv;
1520 u32 _pid = READ_ONCE(data->wmediumd);
1522 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1523 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1524 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1526 ARRAY_SIZE(txi->control.rates));
1529 mac80211_hwsim_monitor_rx(hw, skb, chan);
1532 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1534 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1538 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1539 struct ieee80211_vif *vif)
1541 struct mac80211_hwsim_data *data = arg;
1542 struct ieee80211_hw *hw = data->hw;
1543 struct ieee80211_tx_info *info;
1544 struct ieee80211_rate *txrate;
1545 struct ieee80211_mgmt *mgmt;
1546 struct sk_buff *skb;
1548 hwsim_check_magic(vif);
1550 if (vif->type != NL80211_IFTYPE_AP &&
1551 vif->type != NL80211_IFTYPE_MESH_POINT &&
1552 vif->type != NL80211_IFTYPE_ADHOC)
1555 skb = ieee80211_beacon_get(hw, vif);
1558 info = IEEE80211_SKB_CB(skb);
1559 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1560 ieee80211_get_tx_rates(vif, NULL, skb,
1561 info->control.rates,
1562 ARRAY_SIZE(info->control.rates));
1564 txrate = ieee80211_get_tx_rate(hw, info);
1566 mgmt = (struct ieee80211_mgmt *) skb->data;
1567 /* fake header transmission time */
1568 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1569 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1571 24 * 8 * 10 / txrate->bitrate);
1573 mac80211_hwsim_tx_frame(hw, skb,
1574 rcu_dereference(vif->chanctx_conf)->def.chan);
1576 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1577 ieee80211_csa_finish(vif);
1580 static enum hrtimer_restart
1581 mac80211_hwsim_beacon(struct hrtimer *timer)
1583 struct mac80211_hwsim_data *data =
1584 container_of(timer, struct mac80211_hwsim_data,
1585 beacon_timer.timer);
1586 struct ieee80211_hw *hw = data->hw;
1587 u64 bcn_int = data->beacon_int;
1593 ieee80211_iterate_active_interfaces_atomic(
1594 hw, IEEE80211_IFACE_ITER_NORMAL,
1595 mac80211_hwsim_beacon_tx, data);
1597 /* beacon at new TBTT + beacon interval */
1598 if (data->bcn_delta) {
1599 bcn_int -= data->bcn_delta;
1600 data->bcn_delta = 0;
1603 next_bcn = ktime_add(hrtimer_get_expires(timer),
1604 ns_to_ktime(bcn_int * 1000));
1605 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1607 return HRTIMER_NORESTART;
1610 static const char * const hwsim_chanwidths[] = {
1611 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1612 [NL80211_CHAN_WIDTH_20] = "ht20",
1613 [NL80211_CHAN_WIDTH_40] = "ht40",
1614 [NL80211_CHAN_WIDTH_80] = "vht80",
1615 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1616 [NL80211_CHAN_WIDTH_160] = "vht160",
1619 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1621 struct mac80211_hwsim_data *data = hw->priv;
1622 struct ieee80211_conf *conf = &hw->conf;
1623 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1624 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1625 [IEEE80211_SMPS_OFF] = "off",
1626 [IEEE80211_SMPS_STATIC] = "static",
1627 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1631 if (conf->chandef.chan)
1632 wiphy_dbg(hw->wiphy,
1633 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1635 conf->chandef.chan->center_freq,
1636 conf->chandef.center_freq1,
1637 conf->chandef.center_freq2,
1638 hwsim_chanwidths[conf->chandef.width],
1639 !!(conf->flags & IEEE80211_CONF_IDLE),
1640 !!(conf->flags & IEEE80211_CONF_PS),
1641 smps_modes[conf->smps_mode]);
1643 wiphy_dbg(hw->wiphy,
1644 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1646 !!(conf->flags & IEEE80211_CONF_IDLE),
1647 !!(conf->flags & IEEE80211_CONF_PS),
1648 smps_modes[conf->smps_mode]);
1650 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1652 WARN_ON(conf->chandef.chan && data->use_chanctx);
1654 mutex_lock(&data->mutex);
1655 if (data->scanning && conf->chandef.chan) {
1656 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1657 if (data->survey_data[idx].channel == data->channel) {
1658 data->survey_data[idx].start =
1659 data->survey_data[idx].next_start;
1660 data->survey_data[idx].end = jiffies;
1665 data->channel = conf->chandef.chan;
1667 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1668 if (data->survey_data[idx].channel &&
1669 data->survey_data[idx].channel != data->channel)
1671 data->survey_data[idx].channel = data->channel;
1672 data->survey_data[idx].next_start = jiffies;
1676 data->channel = conf->chandef.chan;
1678 mutex_unlock(&data->mutex);
1680 if (!data->started || !data->beacon_int)
1681 tasklet_hrtimer_cancel(&data->beacon_timer);
1682 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1683 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1684 u32 bcn_int = data->beacon_int;
1685 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1687 tasklet_hrtimer_start(&data->beacon_timer,
1688 ns_to_ktime(until_tbtt * 1000),
1696 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1697 unsigned int changed_flags,
1698 unsigned int *total_flags,u64 multicast)
1700 struct mac80211_hwsim_data *data = hw->priv;
1702 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1704 data->rx_filter = 0;
1705 if (*total_flags & FIF_ALLMULTI)
1706 data->rx_filter |= FIF_ALLMULTI;
1708 *total_flags = data->rx_filter;
1711 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1712 struct ieee80211_vif *vif)
1714 unsigned int *count = data;
1715 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1721 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1722 struct ieee80211_vif *vif,
1723 struct ieee80211_bss_conf *info,
1726 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1727 struct mac80211_hwsim_data *data = hw->priv;
1729 hwsim_check_magic(vif);
1731 wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1732 __func__, changed, vif->addr);
1734 if (changed & BSS_CHANGED_BSSID) {
1735 wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
1736 __func__, info->bssid);
1737 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1740 if (changed & BSS_CHANGED_ASSOC) {
1741 wiphy_dbg(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1742 info->assoc, info->aid);
1743 vp->assoc = info->assoc;
1744 vp->aid = info->aid;
1747 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1748 wiphy_dbg(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1749 info->enable_beacon, info->beacon_int);
1750 vp->bcn_en = info->enable_beacon;
1751 if (data->started &&
1752 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1753 info->enable_beacon) {
1754 u64 tsf, until_tbtt;
1756 data->beacon_int = info->beacon_int * 1024;
1757 tsf = mac80211_hwsim_get_tsf(hw, vif);
1758 bcn_int = data->beacon_int;
1759 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1760 tasklet_hrtimer_start(&data->beacon_timer,
1761 ns_to_ktime(until_tbtt * 1000),
1763 } else if (!info->enable_beacon) {
1764 unsigned int count = 0;
1765 ieee80211_iterate_active_interfaces_atomic(
1766 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1767 mac80211_hwsim_bcn_en_iter, &count);
1768 wiphy_dbg(hw->wiphy, " beaconing vifs remaining: %u",
1771 tasklet_hrtimer_cancel(&data->beacon_timer);
1772 data->beacon_int = 0;
1777 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1778 wiphy_dbg(hw->wiphy, " ERP_CTS_PROT: %d\n",
1779 info->use_cts_prot);
1782 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1783 wiphy_dbg(hw->wiphy, " ERP_PREAMBLE: %d\n",
1784 info->use_short_preamble);
1787 if (changed & BSS_CHANGED_ERP_SLOT) {
1788 wiphy_dbg(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1791 if (changed & BSS_CHANGED_HT) {
1792 wiphy_dbg(hw->wiphy, " HT: op_mode=0x%x\n",
1793 info->ht_operation_mode);
1796 if (changed & BSS_CHANGED_BASIC_RATES) {
1797 wiphy_dbg(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1798 (unsigned long long) info->basic_rates);
1801 if (changed & BSS_CHANGED_TXPOWER)
1802 wiphy_dbg(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1805 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1806 struct ieee80211_vif *vif,
1807 struct ieee80211_sta *sta)
1809 hwsim_check_magic(vif);
1810 hwsim_set_sta_magic(sta);
1815 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1816 struct ieee80211_vif *vif,
1817 struct ieee80211_sta *sta)
1819 hwsim_check_magic(vif);
1820 hwsim_clear_sta_magic(sta);
1825 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1826 struct ieee80211_vif *vif,
1827 enum sta_notify_cmd cmd,
1828 struct ieee80211_sta *sta)
1830 hwsim_check_magic(vif);
1833 case STA_NOTIFY_SLEEP:
1834 case STA_NOTIFY_AWAKE:
1835 /* TODO: make good use of these flags */
1838 WARN(1, "Invalid sta notify: %d\n", cmd);
1843 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1844 struct ieee80211_sta *sta,
1847 hwsim_check_sta_magic(sta);
1851 static int mac80211_hwsim_conf_tx(
1852 struct ieee80211_hw *hw,
1853 struct ieee80211_vif *vif, u16 queue,
1854 const struct ieee80211_tx_queue_params *params)
1856 wiphy_dbg(hw->wiphy,
1857 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1859 params->txop, params->cw_min,
1860 params->cw_max, params->aifs);
1864 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1865 struct survey_info *survey)
1867 struct mac80211_hwsim_data *hwsim = hw->priv;
1869 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1872 mutex_lock(&hwsim->mutex);
1873 survey->channel = hwsim->survey_data[idx].channel;
1874 if (!survey->channel) {
1875 mutex_unlock(&hwsim->mutex);
1880 * Magically conjured dummy values --- this is only ok for simulated hardware.
1882 * A real driver which cannot determine real values noise MUST NOT
1883 * report any, especially not a magically conjured ones :-)
1885 survey->filled = SURVEY_INFO_NOISE_DBM |
1887 SURVEY_INFO_TIME_BUSY;
1888 survey->noise = -92;
1890 jiffies_to_msecs(hwsim->survey_data[idx].end -
1891 hwsim->survey_data[idx].start);
1892 /* report 12.5% of channel time is used */
1893 survey->time_busy = survey->time/8;
1894 mutex_unlock(&hwsim->mutex);
1899 #ifdef CONFIG_NL80211_TESTMODE
1901 * This section contains example code for using netlink
1902 * attributes with the testmode command in nl80211.
1905 /* These enums need to be kept in sync with userspace */
1906 enum hwsim_testmode_attr {
1907 __HWSIM_TM_ATTR_INVALID = 0,
1908 HWSIM_TM_ATTR_CMD = 1,
1909 HWSIM_TM_ATTR_PS = 2,
1912 __HWSIM_TM_ATTR_AFTER_LAST,
1913 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1916 enum hwsim_testmode_cmd {
1917 HWSIM_TM_CMD_SET_PS = 0,
1918 HWSIM_TM_CMD_GET_PS = 1,
1919 HWSIM_TM_CMD_STOP_QUEUES = 2,
1920 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1923 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1924 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1925 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1928 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1929 struct ieee80211_vif *vif,
1930 void *data, int len)
1932 struct mac80211_hwsim_data *hwsim = hw->priv;
1933 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1934 struct sk_buff *skb;
1937 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1938 hwsim_testmode_policy, NULL);
1942 if (!tb[HWSIM_TM_ATTR_CMD])
1945 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1946 case HWSIM_TM_CMD_SET_PS:
1947 if (!tb[HWSIM_TM_ATTR_PS])
1949 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1950 return hwsim_fops_ps_write(hwsim, ps);
1951 case HWSIM_TM_CMD_GET_PS:
1952 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1953 nla_total_size(sizeof(u32)));
1956 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1957 goto nla_put_failure;
1958 return cfg80211_testmode_reply(skb);
1959 case HWSIM_TM_CMD_STOP_QUEUES:
1960 ieee80211_stop_queues(hw);
1962 case HWSIM_TM_CMD_WAKE_QUEUES:
1963 ieee80211_wake_queues(hw);
1975 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1976 struct ieee80211_vif *vif,
1977 struct ieee80211_ampdu_params *params)
1979 struct ieee80211_sta *sta = params->sta;
1980 enum ieee80211_ampdu_mlme_action action = params->action;
1981 u16 tid = params->tid;
1984 case IEEE80211_AMPDU_TX_START:
1985 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1987 case IEEE80211_AMPDU_TX_STOP_CONT:
1988 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1989 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1990 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1992 case IEEE80211_AMPDU_TX_OPERATIONAL:
1994 case IEEE80211_AMPDU_RX_START:
1995 case IEEE80211_AMPDU_RX_STOP:
2004 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2005 struct ieee80211_vif *vif,
2006 u32 queues, bool drop)
2008 /* Not implemented, queues only on kernel side */
2011 static void hw_scan_work(struct work_struct *work)
2013 struct mac80211_hwsim_data *hwsim =
2014 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2015 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2018 mutex_lock(&hwsim->mutex);
2019 if (hwsim->scan_chan_idx >= req->n_channels) {
2020 struct cfg80211_scan_info info = {
2024 wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
2025 ieee80211_scan_completed(hwsim->hw, &info);
2026 hwsim->hw_scan_request = NULL;
2027 hwsim->hw_scan_vif = NULL;
2028 hwsim->tmp_chan = NULL;
2029 mutex_unlock(&hwsim->mutex);
2033 wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2034 req->channels[hwsim->scan_chan_idx]->center_freq);
2036 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2037 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2038 IEEE80211_CHAN_RADAR) ||
2044 for (i = 0; i < req->n_ssids; i++) {
2045 struct sk_buff *probe;
2046 struct ieee80211_mgmt *mgmt;
2048 probe = ieee80211_probereq_get(hwsim->hw,
2051 req->ssids[i].ssid_len,
2056 mgmt = (struct ieee80211_mgmt *) probe->data;
2057 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2058 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2061 skb_put_data(probe, req->ie, req->ie_len);
2064 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2069 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2070 msecs_to_jiffies(dwell));
2071 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2072 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2073 hwsim->survey_data[hwsim->scan_chan_idx].end =
2074 jiffies + msecs_to_jiffies(dwell);
2075 hwsim->scan_chan_idx++;
2076 mutex_unlock(&hwsim->mutex);
2079 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2080 struct ieee80211_vif *vif,
2081 struct ieee80211_scan_request *hw_req)
2083 struct mac80211_hwsim_data *hwsim = hw->priv;
2084 struct cfg80211_scan_request *req = &hw_req->req;
2086 mutex_lock(&hwsim->mutex);
2087 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2088 mutex_unlock(&hwsim->mutex);
2091 hwsim->hw_scan_request = req;
2092 hwsim->hw_scan_vif = vif;
2093 hwsim->scan_chan_idx = 0;
2094 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2095 get_random_mask_addr(hwsim->scan_addr,
2096 hw_req->req.mac_addr,
2097 hw_req->req.mac_addr_mask);
2099 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2100 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2101 mutex_unlock(&hwsim->mutex);
2103 wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
2105 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2110 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2111 struct ieee80211_vif *vif)
2113 struct mac80211_hwsim_data *hwsim = hw->priv;
2114 struct cfg80211_scan_info info = {
2118 wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
2120 cancel_delayed_work_sync(&hwsim->hw_scan);
2122 mutex_lock(&hwsim->mutex);
2123 ieee80211_scan_completed(hwsim->hw, &info);
2124 hwsim->tmp_chan = NULL;
2125 hwsim->hw_scan_request = NULL;
2126 hwsim->hw_scan_vif = NULL;
2127 mutex_unlock(&hwsim->mutex);
2130 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2131 struct ieee80211_vif *vif,
2134 struct mac80211_hwsim_data *hwsim = hw->priv;
2136 mutex_lock(&hwsim->mutex);
2138 if (hwsim->scanning) {
2139 pr_debug("two hwsim sw_scans detected!\n");
2143 pr_debug("hwsim sw_scan request, prepping stuff\n");
2145 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2146 hwsim->scanning = true;
2147 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2150 mutex_unlock(&hwsim->mutex);
2153 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2154 struct ieee80211_vif *vif)
2156 struct mac80211_hwsim_data *hwsim = hw->priv;
2158 mutex_lock(&hwsim->mutex);
2160 pr_debug("hwsim sw_scan_complete\n");
2161 hwsim->scanning = false;
2162 eth_zero_addr(hwsim->scan_addr);
2164 mutex_unlock(&hwsim->mutex);
2167 static void hw_roc_start(struct work_struct *work)
2169 struct mac80211_hwsim_data *hwsim =
2170 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2172 mutex_lock(&hwsim->mutex);
2174 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
2175 hwsim->tmp_chan = hwsim->roc_chan;
2176 ieee80211_ready_on_channel(hwsim->hw);
2178 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2179 msecs_to_jiffies(hwsim->roc_duration));
2181 mutex_unlock(&hwsim->mutex);
2184 static void hw_roc_done(struct work_struct *work)
2186 struct mac80211_hwsim_data *hwsim =
2187 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2189 mutex_lock(&hwsim->mutex);
2190 ieee80211_remain_on_channel_expired(hwsim->hw);
2191 hwsim->tmp_chan = NULL;
2192 mutex_unlock(&hwsim->mutex);
2194 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
2197 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2198 struct ieee80211_vif *vif,
2199 struct ieee80211_channel *chan,
2201 enum ieee80211_roc_type type)
2203 struct mac80211_hwsim_data *hwsim = hw->priv;
2205 mutex_lock(&hwsim->mutex);
2206 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2207 mutex_unlock(&hwsim->mutex);
2211 hwsim->roc_chan = chan;
2212 hwsim->roc_duration = duration;
2213 mutex_unlock(&hwsim->mutex);
2215 wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2216 chan->center_freq, duration);
2217 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2222 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2224 struct mac80211_hwsim_data *hwsim = hw->priv;
2226 cancel_delayed_work_sync(&hwsim->roc_start);
2227 cancel_delayed_work_sync(&hwsim->roc_done);
2229 mutex_lock(&hwsim->mutex);
2230 hwsim->tmp_chan = NULL;
2231 mutex_unlock(&hwsim->mutex);
2233 wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
2238 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2239 struct ieee80211_chanctx_conf *ctx)
2241 hwsim_set_chanctx_magic(ctx);
2242 wiphy_dbg(hw->wiphy,
2243 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2244 ctx->def.chan->center_freq, ctx->def.width,
2245 ctx->def.center_freq1, ctx->def.center_freq2);
2249 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2250 struct ieee80211_chanctx_conf *ctx)
2252 wiphy_dbg(hw->wiphy,
2253 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2254 ctx->def.chan->center_freq, ctx->def.width,
2255 ctx->def.center_freq1, ctx->def.center_freq2);
2256 hwsim_check_chanctx_magic(ctx);
2257 hwsim_clear_chanctx_magic(ctx);
2260 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2261 struct ieee80211_chanctx_conf *ctx,
2264 hwsim_check_chanctx_magic(ctx);
2265 wiphy_dbg(hw->wiphy,
2266 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2267 ctx->def.chan->center_freq, ctx->def.width,
2268 ctx->def.center_freq1, ctx->def.center_freq2);
2271 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif,
2273 struct ieee80211_chanctx_conf *ctx)
2275 hwsim_check_magic(vif);
2276 hwsim_check_chanctx_magic(ctx);
2281 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2282 struct ieee80211_vif *vif,
2283 struct ieee80211_chanctx_conf *ctx)
2285 hwsim_check_magic(vif);
2286 hwsim_check_chanctx_magic(ctx);
2289 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2300 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2302 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2303 struct ieee80211_vif *vif,
2306 if (sset == ETH_SS_STATS)
2307 memcpy(data, *mac80211_hwsim_gstrings_stats,
2308 sizeof(mac80211_hwsim_gstrings_stats));
2311 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2312 struct ieee80211_vif *vif, int sset)
2314 if (sset == ETH_SS_STATS)
2315 return MAC80211_HWSIM_SSTATS_LEN;
2319 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2320 struct ieee80211_vif *vif,
2321 struct ethtool_stats *stats, u64 *data)
2323 struct mac80211_hwsim_data *ar = hw->priv;
2326 data[i++] = ar->tx_pkts;
2327 data[i++] = ar->tx_bytes;
2328 data[i++] = ar->rx_pkts;
2329 data[i++] = ar->rx_bytes;
2330 data[i++] = ar->tx_dropped;
2331 data[i++] = ar->tx_failed;
2333 data[i++] = ar->group;
2335 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2338 #define HWSIM_COMMON_OPS \
2339 .tx = mac80211_hwsim_tx, \
2340 .start = mac80211_hwsim_start, \
2341 .stop = mac80211_hwsim_stop, \
2342 .add_interface = mac80211_hwsim_add_interface, \
2343 .change_interface = mac80211_hwsim_change_interface, \
2344 .remove_interface = mac80211_hwsim_remove_interface, \
2345 .config = mac80211_hwsim_config, \
2346 .configure_filter = mac80211_hwsim_configure_filter, \
2347 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2348 .sta_add = mac80211_hwsim_sta_add, \
2349 .sta_remove = mac80211_hwsim_sta_remove, \
2350 .sta_notify = mac80211_hwsim_sta_notify, \
2351 .set_tim = mac80211_hwsim_set_tim, \
2352 .conf_tx = mac80211_hwsim_conf_tx, \
2353 .get_survey = mac80211_hwsim_get_survey, \
2354 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2355 .ampdu_action = mac80211_hwsim_ampdu_action, \
2356 .flush = mac80211_hwsim_flush, \
2357 .get_tsf = mac80211_hwsim_get_tsf, \
2358 .set_tsf = mac80211_hwsim_set_tsf, \
2359 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2360 .get_et_stats = mac80211_hwsim_get_et_stats, \
2361 .get_et_strings = mac80211_hwsim_get_et_strings,
2363 static const struct ieee80211_ops mac80211_hwsim_ops = {
2365 .sw_scan_start = mac80211_hwsim_sw_scan,
2366 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2369 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2371 .hw_scan = mac80211_hwsim_hw_scan,
2372 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2373 .sw_scan_start = NULL,
2374 .sw_scan_complete = NULL,
2375 .remain_on_channel = mac80211_hwsim_roc,
2376 .cancel_remain_on_channel = mac80211_hwsim_croc,
2377 .add_chanctx = mac80211_hwsim_add_chanctx,
2378 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2379 .change_chanctx = mac80211_hwsim_change_chanctx,
2380 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2381 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2384 struct hwsim_new_radio_params {
2385 unsigned int channels;
2386 const char *reg_alpha2;
2387 const struct ieee80211_regdomain *regd;
2391 bool destroy_on_close;
2394 const u8 *perm_addr;
2400 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2401 struct genl_info *info)
2404 genl_notify(&hwsim_genl_family, mcast_skb, info,
2405 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2407 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2408 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2411 static int append_radio_msg(struct sk_buff *skb, int id,
2412 struct hwsim_new_radio_params *param)
2416 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2420 if (param->channels) {
2421 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2426 if (param->reg_alpha2) {
2427 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2436 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2437 if (hwsim_world_regdom_custom[i] != param->regd)
2440 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2447 if (param->reg_strict) {
2448 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2453 if (param->p2p_device) {
2454 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2459 if (param->use_chanctx) {
2460 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2465 if (param->hwname) {
2466 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2467 strlen(param->hwname), param->hwname);
2475 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2476 struct hwsim_new_radio_params *param)
2478 struct sk_buff *mcast_skb;
2481 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2485 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2486 HWSIM_CMD_NEW_RADIO);
2490 if (append_radio_msg(mcast_skb, id, param) < 0)
2493 genlmsg_end(mcast_skb, data);
2495 hwsim_mcast_config_msg(mcast_skb, info);
2499 nlmsg_free(mcast_skb);
2502 static const struct ieee80211_sband_iftype_data he_capa_2ghz = {
2503 /* TODO: should we support other types, e.g., P2P?*/
2504 .types_mask = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP),
2509 IEEE80211_HE_MAC_CAP0_HTC_HE,
2511 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2512 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2514 IEEE80211_HE_MAC_CAP2_BSR |
2515 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2516 IEEE80211_HE_MAC_CAP2_ACK_EN,
2518 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2519 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2520 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2522 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2523 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2524 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2525 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2527 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2528 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2529 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2530 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2531 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2533 /* Leave all the other PHY capability bytes unset, as
2534 * DCM, beam forming, RU and PPE threshold information
2538 .he_mcs_nss_supp = {
2539 .rx_mcs_80 = cpu_to_le16(0xfffa),
2540 .tx_mcs_80 = cpu_to_le16(0xfffa),
2541 .rx_mcs_160 = cpu_to_le16(0xffff),
2542 .tx_mcs_160 = cpu_to_le16(0xffff),
2543 .rx_mcs_80p80 = cpu_to_le16(0xffff),
2544 .tx_mcs_80p80 = cpu_to_le16(0xffff),
2549 static const struct ieee80211_sband_iftype_data he_capa_5ghz = {
2550 /* TODO: should we support other types, e.g., P2P?*/
2551 .types_mask = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP),
2556 IEEE80211_HE_MAC_CAP0_HTC_HE,
2558 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2559 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2561 IEEE80211_HE_MAC_CAP2_BSR |
2562 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2563 IEEE80211_HE_MAC_CAP2_ACK_EN,
2565 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2566 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2567 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2569 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2570 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2571 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
2573 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2574 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2575 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2576 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2578 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2579 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2580 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2581 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2582 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2584 /* Leave all the other PHY capability bytes unset, as
2585 * DCM, beam forming, RU and PPE threshold information
2589 .he_mcs_nss_supp = {
2590 .rx_mcs_80 = cpu_to_le16(0xfffa),
2591 .tx_mcs_80 = cpu_to_le16(0xfffa),
2592 .rx_mcs_160 = cpu_to_le16(0xfffa),
2593 .tx_mcs_160 = cpu_to_le16(0xfffa),
2594 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
2595 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
2600 static void mac80211_hswim_he_capab(struct ieee80211_supported_band *sband)
2602 if (sband->band == NL80211_BAND_2GHZ)
2603 sband->iftype_data =
2604 (struct ieee80211_sband_iftype_data *)&he_capa_2ghz;
2605 else if (sband->band == NL80211_BAND_5GHZ)
2606 sband->iftype_data =
2607 (struct ieee80211_sband_iftype_data *)&he_capa_5ghz;
2611 sband->n_iftype_data = 1;
2614 #ifdef CONFIG_MAC80211_MESH
2615 #define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
2617 #define HWSIM_MESH_BIT 0
2620 #define HWSIM_DEFAULT_IF_LIMIT \
2621 (BIT(NL80211_IFTYPE_STATION) | \
2622 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
2623 BIT(NL80211_IFTYPE_AP) | \
2624 BIT(NL80211_IFTYPE_P2P_GO) | \
2627 #define HWSIM_IFTYPE_SUPPORT_MASK \
2628 (BIT(NL80211_IFTYPE_STATION) | \
2629 BIT(NL80211_IFTYPE_AP) | \
2630 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
2631 BIT(NL80211_IFTYPE_P2P_GO) | \
2632 BIT(NL80211_IFTYPE_ADHOC) | \
2633 BIT(NL80211_IFTYPE_MESH_POINT))
2635 static int mac80211_hwsim_new_radio(struct genl_info *info,
2636 struct hwsim_new_radio_params *param)
2640 struct mac80211_hwsim_data *data;
2641 struct ieee80211_hw *hw;
2642 enum nl80211_band band;
2643 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2648 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2651 spin_lock_bh(&hwsim_radio_lock);
2652 idx = hwsim_radio_idx++;
2653 spin_unlock_bh(&hwsim_radio_lock);
2655 if (param->use_chanctx)
2656 ops = &mac80211_hwsim_mchan_ops;
2657 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2659 pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
2664 /* ieee80211_alloc_hw_nm may have used a default name */
2665 param->hwname = wiphy_name(hw->wiphy);
2668 net = genl_info_net(info);
2671 wiphy_net_set(hw->wiphy, net);
2676 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2677 if (IS_ERR(data->dev)) {
2679 "mac80211_hwsim: device_create failed (%ld)\n",
2680 PTR_ERR(data->dev));
2682 goto failed_drvdata;
2684 data->dev->driver = &mac80211_hwsim_driver.driver;
2685 err = device_bind_driver(data->dev);
2687 pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
2692 skb_queue_head_init(&data->pending);
2694 SET_IEEE80211_DEV(hw, data->dev);
2695 if (!param->perm_addr) {
2696 eth_zero_addr(addr);
2700 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2701 /* Why need here second address ? */
2702 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2703 data->addresses[1].addr[0] |= 0x40;
2704 hw->wiphy->n_addresses = 2;
2705 hw->wiphy->addresses = data->addresses;
2706 /* possible address clash is checked at hash table insertion */
2708 memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
2709 /* compatibility with automatically generated mac addr */
2710 memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
2711 hw->wiphy->n_addresses = 2;
2712 hw->wiphy->addresses = data->addresses;
2715 data->channels = param->channels;
2716 data->use_chanctx = param->use_chanctx;
2718 data->destroy_on_close = param->destroy_on_close;
2720 data->portid = info->snd_portid;
2722 /* setup interface limits, only on interface types we support */
2723 if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
2724 data->if_limits[n_limits].max = 1;
2725 data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
2729 if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
2730 data->if_limits[n_limits].max = 2048;
2732 * For this case, we may only support a subset of
2733 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
2734 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
2736 data->if_limits[n_limits].types =
2737 HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
2741 if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
2742 data->if_limits[n_limits].max = 1;
2743 data->if_limits[n_limits].types =
2744 BIT(NL80211_IFTYPE_P2P_DEVICE);
2748 if (data->use_chanctx) {
2749 hw->wiphy->max_scan_ssids = 255;
2750 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2751 hw->wiphy->max_remain_on_channel_duration = 1000;
2752 data->if_combination.radar_detect_widths = 0;
2753 data->if_combination.num_different_channels = data->channels;
2755 data->if_combination.num_different_channels = 1;
2756 data->if_combination.radar_detect_widths =
2757 BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2758 BIT(NL80211_CHAN_WIDTH_20) |
2759 BIT(NL80211_CHAN_WIDTH_40) |
2760 BIT(NL80211_CHAN_WIDTH_80) |
2761 BIT(NL80211_CHAN_WIDTH_160);
2769 data->if_combination.n_limits = n_limits;
2770 data->if_combination.max_interfaces = 2048;
2771 data->if_combination.limits = data->if_limits;
2773 hw->wiphy->iface_combinations = &data->if_combination;
2774 hw->wiphy->n_iface_combinations = 1;
2776 if (param->ciphers) {
2777 memcpy(data->ciphers, param->ciphers,
2778 param->n_ciphers * sizeof(u32));
2779 hw->wiphy->cipher_suites = data->ciphers;
2780 hw->wiphy->n_cipher_suites = param->n_ciphers;
2783 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
2784 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2785 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2788 hw->offchannel_tx_hw_queue = 4;
2790 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2791 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2792 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2793 ieee80211_hw_set(hw, QUEUE_CONTROL);
2794 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2795 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2796 ieee80211_hw_set(hw, MFP_CAPABLE);
2797 ieee80211_hw_set(hw, SIGNAL_DBM);
2798 ieee80211_hw_set(hw, SUPPORTS_PS);
2799 ieee80211_hw_set(hw, TDLS_WIDER_BW);
2801 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
2803 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2804 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2805 WIPHY_FLAG_AP_UAPSD |
2806 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2807 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2808 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2809 NL80211_FEATURE_STATIC_SMPS |
2810 NL80211_FEATURE_DYNAMIC_SMPS |
2811 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2812 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
2814 hw->wiphy->interface_modes = param->iftypes;
2816 /* ask mac80211 to reserve space for magic */
2817 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2818 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2819 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2821 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2822 sizeof(hwsim_channels_2ghz));
2823 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2824 sizeof(hwsim_channels_5ghz));
2825 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2827 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
2828 struct ieee80211_supported_band *sband = &data->bands[band];
2833 case NL80211_BAND_2GHZ:
2834 sband->channels = data->channels_2ghz;
2835 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2836 sband->bitrates = data->rates;
2837 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2839 case NL80211_BAND_5GHZ:
2840 sband->channels = data->channels_5ghz;
2841 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2842 sband->bitrates = data->rates + 4;
2843 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2845 sband->vht_cap.vht_supported = true;
2846 sband->vht_cap.cap =
2847 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2848 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2849 IEEE80211_VHT_CAP_RXLDPC |
2850 IEEE80211_VHT_CAP_SHORT_GI_80 |
2851 IEEE80211_VHT_CAP_SHORT_GI_160 |
2852 IEEE80211_VHT_CAP_TXSTBC |
2853 IEEE80211_VHT_CAP_RXSTBC_4 |
2854 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2855 sband->vht_cap.vht_mcs.rx_mcs_map =
2856 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2857 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
2858 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2859 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2860 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
2861 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2862 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2863 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
2864 sband->vht_cap.vht_mcs.tx_mcs_map =
2865 sband->vht_cap.vht_mcs.rx_mcs_map;
2871 sband->ht_cap.ht_supported = true;
2872 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2873 IEEE80211_HT_CAP_GRN_FLD |
2874 IEEE80211_HT_CAP_SGI_20 |
2875 IEEE80211_HT_CAP_SGI_40 |
2876 IEEE80211_HT_CAP_DSSSCCK40;
2877 sband->ht_cap.ampdu_factor = 0x3;
2878 sband->ht_cap.ampdu_density = 0x6;
2879 memset(&sband->ht_cap.mcs, 0,
2880 sizeof(sband->ht_cap.mcs));
2881 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2882 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2883 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2885 mac80211_hswim_he_capab(sband);
2887 hw->wiphy->bands[band] = sband;
2890 /* By default all radios belong to the first group */
2892 mutex_init(&data->mutex);
2894 data->netgroup = hwsim_net_get_netgroup(net);
2895 data->wmediumd = hwsim_net_get_wmediumd(net);
2897 /* Enable frame retransmissions for lossy channels */
2899 hw->max_rate_tries = 11;
2901 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2902 hw->wiphy->n_vendor_commands =
2903 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2904 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2905 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2907 if (param->reg_strict)
2908 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2910 data->regd = param->regd;
2911 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2912 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
2913 /* give the regulatory workqueue a chance to run */
2914 schedule_timeout_interruptible(1);
2918 ieee80211_hw_set(hw, NO_AUTO_VIF);
2920 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2922 tasklet_hrtimer_init(&data->beacon_timer,
2923 mac80211_hwsim_beacon,
2924 CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
2926 err = ieee80211_register_hw(hw);
2928 pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2933 wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2935 if (param->reg_alpha2) {
2936 data->alpha2[0] = param->reg_alpha2[0];
2937 data->alpha2[1] = param->reg_alpha2[1];
2938 regulatory_hint(hw->wiphy, param->reg_alpha2);
2941 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2942 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2943 debugfs_create_file("group", 0666, data->debugfs, data,
2945 if (!data->use_chanctx)
2946 debugfs_create_file("dfs_simulate_radar", 0222,
2948 data, &hwsim_simulate_radar);
2950 spin_lock_bh(&hwsim_radio_lock);
2951 err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
2955 GENL_SET_ERR_MSG(info, "perm addr already present");
2956 NL_SET_BAD_ATTR(info->extack,
2957 info->attrs[HWSIM_ATTR_PERM_ADDR]);
2959 spin_unlock_bh(&hwsim_radio_lock);
2960 goto failed_final_insert;
2963 list_add_tail(&data->list, &hwsim_radios);
2964 hwsim_radios_generation++;
2965 spin_unlock_bh(&hwsim_radio_lock);
2967 hwsim_mcast_new_radio(idx, info, param);
2971 failed_final_insert:
2972 debugfs_remove_recursive(data->debugfs);
2973 ieee80211_unregister_hw(data->hw);
2975 device_release_driver(data->dev);
2977 device_unregister(data->dev);
2979 ieee80211_free_hw(hw);
2984 static void hwsim_mcast_del_radio(int id, const char *hwname,
2985 struct genl_info *info)
2987 struct sk_buff *skb;
2991 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2995 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2996 HWSIM_CMD_DEL_RADIO);
3000 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
3004 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
3009 genlmsg_end(skb, data);
3011 hwsim_mcast_config_msg(skb, info);
3019 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
3021 struct genl_info *info)
3023 hwsim_mcast_del_radio(data->idx, hwname, info);
3024 debugfs_remove_recursive(data->debugfs);
3025 ieee80211_unregister_hw(data->hw);
3026 device_release_driver(data->dev);
3027 device_unregister(data->dev);
3028 ieee80211_free_hw(data->hw);
3031 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
3032 struct mac80211_hwsim_data *data,
3033 u32 portid, u32 seq,
3034 struct netlink_callback *cb, int flags)
3037 struct hwsim_new_radio_params param = { };
3038 int res = -EMSGSIZE;
3040 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
3041 HWSIM_CMD_GET_RADIO);
3046 genl_dump_check_consistent(cb, hdr);
3048 if (data->alpha2[0] && data->alpha2[1])
3049 param.reg_alpha2 = data->alpha2;
3051 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
3052 REGULATORY_STRICT_REG);
3053 param.p2p_device = !!(data->hw->wiphy->interface_modes &
3054 BIT(NL80211_IFTYPE_P2P_DEVICE));
3055 param.use_chanctx = data->use_chanctx;
3056 param.regd = data->regd;
3057 param.channels = data->channels;
3058 param.hwname = wiphy_name(data->hw->wiphy);
3060 res = append_radio_msg(skb, data->idx, ¶m);
3064 genlmsg_end(skb, hdr);
3068 genlmsg_cancel(skb, hdr);
3072 static void mac80211_hwsim_free(void)
3074 struct mac80211_hwsim_data *data;
3076 spin_lock_bh(&hwsim_radio_lock);
3077 while ((data = list_first_entry_or_null(&hwsim_radios,
3078 struct mac80211_hwsim_data,
3080 list_del(&data->list);
3081 spin_unlock_bh(&hwsim_radio_lock);
3082 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3084 spin_lock_bh(&hwsim_radio_lock);
3086 spin_unlock_bh(&hwsim_radio_lock);
3087 class_destroy(hwsim_class);
3090 static const struct net_device_ops hwsim_netdev_ops = {
3091 .ndo_start_xmit = hwsim_mon_xmit,
3092 .ndo_set_mac_address = eth_mac_addr,
3093 .ndo_validate_addr = eth_validate_addr,
3096 static void hwsim_mon_setup(struct net_device *dev)
3098 dev->netdev_ops = &hwsim_netdev_ops;
3099 dev->needs_free_netdev = true;
3101 dev->priv_flags |= IFF_NO_QUEUE;
3102 dev->type = ARPHRD_IEEE80211_RADIOTAP;
3103 eth_zero_addr(dev->dev_addr);
3104 dev->dev_addr[0] = 0x12;
3107 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
3109 return rhashtable_lookup_fast(&hwsim_radios_rht,
3114 static void hwsim_register_wmediumd(struct net *net, u32 portid)
3116 struct mac80211_hwsim_data *data;
3118 hwsim_net_set_wmediumd(net, portid);
3120 spin_lock_bh(&hwsim_radio_lock);
3121 list_for_each_entry(data, &hwsim_radios, list) {
3122 if (data->netgroup == hwsim_net_get_netgroup(net))
3123 data->wmediumd = portid;
3125 spin_unlock_bh(&hwsim_radio_lock);
3128 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
3129 struct genl_info *info)
3132 struct ieee80211_hdr *hdr;
3133 struct mac80211_hwsim_data *data2;
3134 struct ieee80211_tx_info *txi;
3135 struct hwsim_tx_rate *tx_attempts;
3137 struct sk_buff *skb, *tmp;
3139 unsigned int hwsim_flags;
3143 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
3144 !info->attrs[HWSIM_ATTR_FLAGS] ||
3145 !info->attrs[HWSIM_ATTR_COOKIE] ||
3146 !info->attrs[HWSIM_ATTR_SIGNAL] ||
3147 !info->attrs[HWSIM_ATTR_TX_INFO])
3150 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
3151 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
3152 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
3154 data2 = get_hwsim_data_ref_from_addr(src);
3158 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3161 if (info->snd_portid != data2->wmediumd)
3164 /* look for the skb matching the cookie passed back from user */
3165 skb_queue_walk_safe(&data2->pending, skb, tmp) {
3168 txi = IEEE80211_SKB_CB(skb);
3169 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
3171 if (skb_cookie == ret_skb_cookie) {
3172 skb_unlink(skb, &data2->pending);
3182 /* Tx info received because the frame was broadcasted on user space,
3183 so we get all the necessary info: tx attempts and skb control buff */
3185 tx_attempts = (struct hwsim_tx_rate *)nla_data(
3186 info->attrs[HWSIM_ATTR_TX_INFO]);
3188 /* now send back TX status */
3189 txi = IEEE80211_SKB_CB(skb);
3191 ieee80211_tx_info_clear_status(txi);
3193 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
3194 txi->status.rates[i].idx = tx_attempts[i].idx;
3195 txi->status.rates[i].count = tx_attempts[i].count;
3198 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3200 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
3201 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
3202 if (skb->len >= 16) {
3203 hdr = (struct ieee80211_hdr *) skb->data;
3204 mac80211_hwsim_monitor_ack(data2->channel,
3207 txi->flags |= IEEE80211_TX_STAT_ACK;
3209 ieee80211_tx_status_irqsafe(data2->hw, skb);
3216 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
3217 struct genl_info *info)
3219 struct mac80211_hwsim_data *data2;
3220 struct ieee80211_rx_status rx_status;
3224 struct sk_buff *skb = NULL;
3226 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
3227 !info->attrs[HWSIM_ATTR_FRAME] ||
3228 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3229 !info->attrs[HWSIM_ATTR_SIGNAL])
3232 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
3233 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
3234 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
3236 /* Allocate new skb here */
3237 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3241 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
3245 skb_put_data(skb, frame_data, frame_data_len);
3247 data2 = get_hwsim_data_ref_from_addr(dst);
3251 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3254 if (info->snd_portid != data2->wmediumd)
3257 /* check if radio is configured properly */
3259 if (data2->idle || !data2->started)
3262 /* A frame is received from user space */
3263 memset(&rx_status, 0, sizeof(rx_status));
3264 if (info->attrs[HWSIM_ATTR_FREQ]) {
3265 /* throw away off-channel packets, but allow both the temporary
3266 * ("hw" scan/remain-on-channel) and regular channel, since the
3267 * internal datapath also allows this
3269 mutex_lock(&data2->mutex);
3270 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3272 if (rx_status.freq != data2->channel->center_freq &&
3273 (!data2->tmp_chan ||
3274 rx_status.freq != data2->tmp_chan->center_freq)) {
3275 mutex_unlock(&data2->mutex);
3278 mutex_unlock(&data2->mutex);
3280 rx_status.freq = data2->channel->center_freq;
3283 rx_status.band = data2->channel->band;
3284 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3285 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3287 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
3289 data2->rx_bytes += skb->len;
3290 ieee80211_rx_irqsafe(data2->hw, skb);
3294 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3300 static int hwsim_register_received_nl(struct sk_buff *skb_2,
3301 struct genl_info *info)
3303 struct net *net = genl_info_net(info);
3304 struct mac80211_hwsim_data *data;
3307 spin_lock_bh(&hwsim_radio_lock);
3308 list_for_each_entry(data, &hwsim_radios, list)
3309 chans = max(chans, data->channels);
3310 spin_unlock_bh(&hwsim_radio_lock);
3312 /* In the future we should revise the userspace API and allow it
3313 * to set a flag that it does support multi-channel, then we can
3314 * let this pass conditionally on the flag.
3315 * For current userspace, prohibit it since it won't work right.
3320 if (hwsim_net_get_wmediumd(net))
3323 hwsim_register_wmediumd(net, info->snd_portid);
3325 pr_debug("mac80211_hwsim: received a REGISTER, "
3326 "switching to wmediumd mode with pid %d\n", info->snd_portid);
3331 /* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
3332 static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
3336 for (i = 0; i < n_ciphers; i++) {
3340 for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
3341 if (ciphers[i] == hwsim_ciphers[j]) {
3354 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
3356 struct hwsim_new_radio_params param = { 0 };
3357 const char *hwname = NULL;
3360 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3361 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3362 param.channels = channels;
3363 param.destroy_on_close =
3364 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
3366 if (info->attrs[HWSIM_ATTR_CHANNELS])
3367 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
3369 if (param.channels < 1) {
3370 GENL_SET_ERR_MSG(info, "must have at least one channel");
3374 if (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) {
3375 GENL_SET_ERR_MSG(info, "too many channels specified");
3379 if (info->attrs[HWSIM_ATTR_NO_VIF])
3380 param.no_vif = true;
3382 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
3383 param.use_chanctx = true;
3385 param.use_chanctx = (param.channels > 1);
3387 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
3389 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
3391 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3392 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3394 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3397 idx = array_index_nospec(idx,
3398 ARRAY_SIZE(hwsim_world_regdom_custom));
3399 param.regd = hwsim_world_regdom_custom[idx];
3402 if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
3403 if (!is_valid_ether_addr(
3404 nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
3405 GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
3406 NL_SET_BAD_ATTR(info->extack,
3407 info->attrs[HWSIM_ATTR_PERM_ADDR]);
3411 param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
3414 if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
3416 nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
3418 if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
3419 NL_SET_ERR_MSG_ATTR(info->extack,
3420 info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
3421 "cannot support more iftypes than kernel");
3425 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
3428 /* ensure both flag and iftype support is honored */
3429 if (param.p2p_device ||
3430 param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
3431 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
3432 param.p2p_device = true;
3435 if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
3436 u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3439 nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3441 if (len % sizeof(u32)) {
3442 NL_SET_ERR_MSG_ATTR(info->extack,
3443 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3444 "bad cipher list length");
3448 param.n_ciphers = len / sizeof(u32);
3450 if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
3451 NL_SET_ERR_MSG_ATTR(info->extack,
3452 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3453 "too many ciphers specified");
3457 if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
3458 NL_SET_ERR_MSG_ATTR(info->extack,
3459 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3460 "unsupported ciphers specified");
3465 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3466 hwname = kasprintf(GFP_KERNEL, "%.*s",
3467 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3468 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3471 param.hwname = hwname;
3474 ret = mac80211_hwsim_new_radio(info, ¶m);
3479 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
3481 struct mac80211_hwsim_data *data;
3483 const char *hwname = NULL;
3485 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
3486 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3487 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3488 hwname = kasprintf(GFP_KERNEL, "%.*s",
3489 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3490 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3496 spin_lock_bh(&hwsim_radio_lock);
3497 list_for_each_entry(data, &hwsim_radios, list) {
3499 if (data->idx != idx)
3503 strcmp(hwname, wiphy_name(data->hw->wiphy)))
3507 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3510 list_del(&data->list);
3511 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3513 hwsim_radios_generation++;
3514 spin_unlock_bh(&hwsim_radio_lock);
3515 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3520 spin_unlock_bh(&hwsim_radio_lock);
3526 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3528 struct mac80211_hwsim_data *data;
3529 struct sk_buff *skb;
3530 int idx, res = -ENODEV;
3532 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3534 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3536 spin_lock_bh(&hwsim_radio_lock);
3537 list_for_each_entry(data, &hwsim_radios, list) {
3538 if (data->idx != idx)
3541 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3544 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
3550 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3551 info->snd_seq, NULL, 0);
3557 genlmsg_reply(skb, info);
3562 spin_unlock_bh(&hwsim_radio_lock);
3567 static int hwsim_dump_radio_nl(struct sk_buff *skb,
3568 struct netlink_callback *cb)
3570 int last_idx = cb->args[0] - 1;
3571 struct mac80211_hwsim_data *data = NULL;
3575 spin_lock_bh(&hwsim_radio_lock);
3576 cb->seq = hwsim_radios_generation;
3578 if (last_idx >= hwsim_radio_idx-1)
3581 list_for_each_entry(data, &hwsim_radios, list) {
3582 if (data->idx <= last_idx)
3585 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3588 res = mac80211_hwsim_get_radio(skb, data,
3589 NETLINK_CB(cb->skb).portid,
3590 cb->nlh->nlmsg_seq, cb,
3595 last_idx = data->idx;
3598 cb->args[0] = last_idx + 1;
3600 /* list changed, but no new element sent, set interrupted flag */
3601 if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) {
3602 hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
3603 cb->nlh->nlmsg_seq, &hwsim_genl_family,
3604 NLM_F_MULTI, HWSIM_CMD_GET_RADIO);
3607 genl_dump_check_consistent(cb, hdr);
3608 genlmsg_end(skb, hdr);
3612 spin_unlock_bh(&hwsim_radio_lock);
3613 return res ?: skb->len;
3616 /* Generic Netlink operations array */
3617 static const struct genl_ops hwsim_ops[] = {
3619 .cmd = HWSIM_CMD_REGISTER,
3620 .policy = hwsim_genl_policy,
3621 .doit = hwsim_register_received_nl,
3622 .flags = GENL_UNS_ADMIN_PERM,
3625 .cmd = HWSIM_CMD_FRAME,
3626 .policy = hwsim_genl_policy,
3627 .doit = hwsim_cloned_frame_received_nl,
3630 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3631 .policy = hwsim_genl_policy,
3632 .doit = hwsim_tx_info_frame_received_nl,
3635 .cmd = HWSIM_CMD_NEW_RADIO,
3636 .policy = hwsim_genl_policy,
3637 .doit = hwsim_new_radio_nl,
3638 .flags = GENL_UNS_ADMIN_PERM,
3641 .cmd = HWSIM_CMD_DEL_RADIO,
3642 .policy = hwsim_genl_policy,
3643 .doit = hwsim_del_radio_nl,
3644 .flags = GENL_UNS_ADMIN_PERM,
3647 .cmd = HWSIM_CMD_GET_RADIO,
3648 .policy = hwsim_genl_policy,
3649 .doit = hwsim_get_radio_nl,
3650 .dumpit = hwsim_dump_radio_nl,
3654 static struct genl_family hwsim_genl_family __ro_after_init = {
3655 .name = "MAC80211_HWSIM",
3657 .maxattr = HWSIM_ATTR_MAX,
3659 .module = THIS_MODULE,
3661 .n_ops = ARRAY_SIZE(hwsim_ops),
3662 .mcgrps = hwsim_mcgrps,
3663 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3666 static void remove_user_radios(u32 portid)
3668 struct mac80211_hwsim_data *entry, *tmp;
3671 spin_lock_bh(&hwsim_radio_lock);
3672 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3673 if (entry->destroy_on_close && entry->portid == portid) {
3674 list_move(&entry->list, &list);
3675 rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
3677 hwsim_radios_generation++;
3680 spin_unlock_bh(&hwsim_radio_lock);
3682 list_for_each_entry_safe(entry, tmp, &list, list) {
3683 list_del(&entry->list);
3684 mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy),
3689 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3690 unsigned long state,
3693 struct netlink_notify *notify = _notify;
3695 if (state != NETLINK_URELEASE)
3698 remove_user_radios(notify->portid);
3700 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
3701 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3702 " socket, switching to perfect channel medium\n");
3703 hwsim_register_wmediumd(notify->net, 0);
3709 static struct notifier_block hwsim_netlink_notifier = {
3710 .notifier_call = mac80211_hwsim_netlink_notify,
3713 static int __init hwsim_init_netlink(void)
3717 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3719 rc = genl_register_family(&hwsim_genl_family);
3723 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3725 genl_unregister_family(&hwsim_genl_family);
3732 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3736 static __net_init int hwsim_init_net(struct net *net)
3738 return hwsim_net_set_netgroup(net);
3741 static void __net_exit hwsim_exit_net(struct net *net)
3743 struct mac80211_hwsim_data *data, *tmp;
3746 spin_lock_bh(&hwsim_radio_lock);
3747 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3748 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3751 /* Radios created in init_net are returned to init_net. */
3752 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3755 list_move(&data->list, &list);
3756 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3758 hwsim_radios_generation++;
3760 spin_unlock_bh(&hwsim_radio_lock);
3762 list_for_each_entry_safe(data, tmp, &list, list) {
3763 list_del(&data->list);
3764 mac80211_hwsim_del_radio(data,
3765 wiphy_name(data->hw->wiphy),
3769 ida_simple_remove(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net));
3772 static struct pernet_operations hwsim_net_ops = {
3773 .init = hwsim_init_net,
3774 .exit = hwsim_exit_net,
3775 .id = &hwsim_net_id,
3776 .size = sizeof(struct hwsim_net),
3779 static void hwsim_exit_netlink(void)
3781 /* unregister the notifier */
3782 netlink_unregister_notifier(&hwsim_netlink_notifier);
3783 /* unregister the family */
3784 genl_unregister_family(&hwsim_genl_family);
3787 static int __init init_mac80211_hwsim(void)
3791 if (radios < 0 || radios > 100)
3797 spin_lock_init(&hwsim_radio_lock);
3799 err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
3803 err = register_pernet_device(&hwsim_net_ops);
3807 err = platform_driver_register(&mac80211_hwsim_driver);
3809 goto out_unregister_pernet;
3811 err = hwsim_init_netlink();
3813 goto out_unregister_driver;
3815 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3816 if (IS_ERR(hwsim_class)) {
3817 err = PTR_ERR(hwsim_class);
3818 goto out_exit_netlink;
3821 for (i = 0; i < radios; i++) {
3822 struct hwsim_new_radio_params param = { 0 };
3824 param.channels = channels;
3827 case HWSIM_REGTEST_DIFF_COUNTRY:
3828 if (i < ARRAY_SIZE(hwsim_alpha2s))
3829 param.reg_alpha2 = hwsim_alpha2s[i];
3831 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3833 param.reg_alpha2 = hwsim_alpha2s[0];
3835 case HWSIM_REGTEST_STRICT_ALL:
3836 param.reg_strict = true;
3837 case HWSIM_REGTEST_DRIVER_REG_ALL:
3838 param.reg_alpha2 = hwsim_alpha2s[0];
3840 case HWSIM_REGTEST_WORLD_ROAM:
3842 param.regd = &hwsim_world_regdom_custom_01;
3844 case HWSIM_REGTEST_CUSTOM_WORLD:
3845 param.regd = &hwsim_world_regdom_custom_01;
3847 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3849 param.regd = &hwsim_world_regdom_custom_01;
3851 param.regd = &hwsim_world_regdom_custom_02;
3853 case HWSIM_REGTEST_STRICT_FOLLOW:
3855 param.reg_strict = true;
3856 param.reg_alpha2 = hwsim_alpha2s[0];
3859 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
3861 param.reg_strict = true;
3862 param.reg_alpha2 = hwsim_alpha2s[0];
3863 } else if (i == 1) {
3864 param.reg_alpha2 = hwsim_alpha2s[1];
3867 case HWSIM_REGTEST_ALL:
3870 param.regd = &hwsim_world_regdom_custom_01;
3873 param.regd = &hwsim_world_regdom_custom_02;
3876 param.reg_alpha2 = hwsim_alpha2s[0];
3879 param.reg_alpha2 = hwsim_alpha2s[1];
3882 param.reg_strict = true;
3883 param.reg_alpha2 = hwsim_alpha2s[2];
3891 param.p2p_device = support_p2p_device;
3892 param.use_chanctx = channels > 1;
3893 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
3895 err = mac80211_hwsim_new_radio(NULL, ¶m);
3897 goto out_free_radios;
3900 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3902 if (hwsim_mon == NULL) {
3904 goto out_free_radios;
3908 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3911 goto out_free_radios;
3914 err = register_netdevice(hwsim_mon);
3924 free_netdev(hwsim_mon);
3926 mac80211_hwsim_free();
3928 hwsim_exit_netlink();
3929 out_unregister_driver:
3930 platform_driver_unregister(&mac80211_hwsim_driver);
3931 out_unregister_pernet:
3932 unregister_pernet_device(&hwsim_net_ops);
3934 rhashtable_destroy(&hwsim_radios_rht);
3937 module_init(init_mac80211_hwsim);
3939 static void __exit exit_mac80211_hwsim(void)
3941 pr_debug("mac80211_hwsim: unregister radios\n");
3943 hwsim_exit_netlink();
3945 mac80211_hwsim_free();
3947 rhashtable_destroy(&hwsim_radios_rht);
3948 unregister_netdev(hwsim_mon);
3949 platform_driver_unregister(&mac80211_hwsim_driver);
3950 unregister_pernet_device(&hwsim_net_ops);
3952 module_exit(exit_mac80211_hwsim);