2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/platform_device.h>
29 #include <linux/debugfs.h>
30 #include <linux/module.h>
31 #include <linux/ktime.h>
32 #include <net/genetlink.h>
33 #include "mac80211_hwsim.h"
35 #define WARN_QUEUE 100
38 MODULE_AUTHOR("Jouni Malinen");
39 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
40 MODULE_LICENSE("GPL");
42 static u32 wmediumd_portid;
44 static int radios = 2;
45 module_param(radios, int, 0444);
46 MODULE_PARM_DESC(radios, "Number of simulated radios");
48 static int channels = 1;
49 module_param(channels, int, 0444);
50 MODULE_PARM_DESC(channels, "Number of concurrent channels");
52 static bool paged_rx = false;
53 module_param(paged_rx, bool, 0644);
54 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
57 * enum hwsim_regtest - the type of regulatory tests we offer
59 * These are the different values you can use for the regtest
60 * module parameter. This is useful to help test world roaming
61 * and the driver regulatory_hint() call and combinations of these.
62 * If you want to do specific alpha2 regulatory domain tests simply
63 * use the userspace regulatory request as that will be respected as
64 * well without the need of this module parameter. This is designed
65 * only for testing the driver regulatory request, world roaming
66 * and all possible combinations.
68 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
69 * this is the default value.
70 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
71 * hint, only one driver regulatory hint will be sent as such the
72 * secondary radios are expected to follow.
73 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
74 * request with all radios reporting the same regulatory domain.
75 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
76 * different regulatory domains requests. Expected behaviour is for
77 * an intersection to occur but each device will still use their
78 * respective regulatory requested domains. Subsequent radios will
79 * use the resulting intersection.
80 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
81 * this by using a custom beacon-capable regulatory domain for the first
82 * radio. All other device world roam.
83 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
84 * domain requests. All radios will adhere to this custom world regulatory
86 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
87 * domain requests. The first radio will adhere to the first custom world
88 * regulatory domain, the second one to the second custom world regulatory
89 * domain. All other devices will world roam.
90 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
91 * settings, only the first radio will send a regulatory domain request
92 * and use strict settings. The rest of the radios are expected to follow.
93 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
94 * settings. All radios will adhere to this.
95 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
96 * domain settings, combined with secondary driver regulatory domain
97 * settings. The first radio will get a strict regulatory domain setting
98 * using the first driver regulatory request and the second radio will use
99 * non-strict settings using the second driver regulatory request. All
100 * other devices should follow the intersection created between the
102 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
103 * at least 6 radios for a complete test. We will test in this order:
104 * 1 - driver custom world regulatory domain
105 * 2 - second custom world regulatory domain
106 * 3 - first driver regulatory domain request
107 * 4 - second driver regulatory domain request
108 * 5 - strict regulatory domain settings using the third driver regulatory
110 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
111 * regulatory requests.
114 HWSIM_REGTEST_DISABLED = 0,
115 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
116 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
117 HWSIM_REGTEST_DIFF_COUNTRY = 3,
118 HWSIM_REGTEST_WORLD_ROAM = 4,
119 HWSIM_REGTEST_CUSTOM_WORLD = 5,
120 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
121 HWSIM_REGTEST_STRICT_FOLLOW = 7,
122 HWSIM_REGTEST_STRICT_ALL = 8,
123 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
124 HWSIM_REGTEST_ALL = 10,
127 /* Set to one of the HWSIM_REGTEST_* values above */
128 static int regtest = HWSIM_REGTEST_DISABLED;
129 module_param(regtest, int, 0444);
130 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
132 static const char *hwsim_alpha2s[] = {
141 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
145 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
146 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
147 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
148 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
152 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
156 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
157 REG_RULE(5725-10, 5850+10, 40, 0, 30,
158 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
162 struct hwsim_vif_priv {
169 #define HWSIM_VIF_MAGIC 0x69537748
171 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
173 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
174 WARN(vp->magic != HWSIM_VIF_MAGIC,
175 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
176 vif, vp->magic, vif->addr, vif->type, vif->p2p);
179 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
181 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
182 vp->magic = HWSIM_VIF_MAGIC;
185 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
191 struct hwsim_sta_priv {
195 #define HWSIM_STA_MAGIC 0x6d537749
197 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
199 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
200 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
203 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
205 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
206 sp->magic = HWSIM_STA_MAGIC;
209 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
211 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
215 struct hwsim_chanctx_priv {
219 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
221 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
223 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
224 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
227 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
229 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
230 cp->magic = HWSIM_CHANCTX_MAGIC;
233 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
235 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
239 static struct class *hwsim_class;
241 static struct net_device *hwsim_mon; /* global monitor netdev */
243 #define CHAN2G(_freq) { \
244 .band = IEEE80211_BAND_2GHZ, \
245 .center_freq = (_freq), \
246 .hw_value = (_freq), \
250 #define CHAN5G(_freq) { \
251 .band = IEEE80211_BAND_5GHZ, \
252 .center_freq = (_freq), \
253 .hw_value = (_freq), \
257 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
258 CHAN2G(2412), /* Channel 1 */
259 CHAN2G(2417), /* Channel 2 */
260 CHAN2G(2422), /* Channel 3 */
261 CHAN2G(2427), /* Channel 4 */
262 CHAN2G(2432), /* Channel 5 */
263 CHAN2G(2437), /* Channel 6 */
264 CHAN2G(2442), /* Channel 7 */
265 CHAN2G(2447), /* Channel 8 */
266 CHAN2G(2452), /* Channel 9 */
267 CHAN2G(2457), /* Channel 10 */
268 CHAN2G(2462), /* Channel 11 */
269 CHAN2G(2467), /* Channel 12 */
270 CHAN2G(2472), /* Channel 13 */
271 CHAN2G(2484), /* Channel 14 */
274 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
275 CHAN5G(5180), /* Channel 36 */
276 CHAN5G(5200), /* Channel 40 */
277 CHAN5G(5220), /* Channel 44 */
278 CHAN5G(5240), /* Channel 48 */
280 CHAN5G(5260), /* Channel 52 */
281 CHAN5G(5280), /* Channel 56 */
282 CHAN5G(5300), /* Channel 60 */
283 CHAN5G(5320), /* Channel 64 */
285 CHAN5G(5500), /* Channel 100 */
286 CHAN5G(5520), /* Channel 104 */
287 CHAN5G(5540), /* Channel 108 */
288 CHAN5G(5560), /* Channel 112 */
289 CHAN5G(5580), /* Channel 116 */
290 CHAN5G(5600), /* Channel 120 */
291 CHAN5G(5620), /* Channel 124 */
292 CHAN5G(5640), /* Channel 128 */
293 CHAN5G(5660), /* Channel 132 */
294 CHAN5G(5680), /* Channel 136 */
295 CHAN5G(5700), /* Channel 140 */
297 CHAN5G(5745), /* Channel 149 */
298 CHAN5G(5765), /* Channel 153 */
299 CHAN5G(5785), /* Channel 157 */
300 CHAN5G(5805), /* Channel 161 */
301 CHAN5G(5825), /* Channel 165 */
304 static const struct ieee80211_rate hwsim_rates[] = {
306 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
307 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
308 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
319 static spinlock_t hwsim_radio_lock;
320 static struct list_head hwsim_radios;
322 struct mac80211_hwsim_data {
323 struct list_head list;
324 struct ieee80211_hw *hw;
326 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
327 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
328 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
329 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
331 struct mac_address addresses[2];
333 struct ieee80211_channel *tmp_chan;
334 struct delayed_work roc_done;
335 struct delayed_work hw_scan;
336 struct cfg80211_scan_request *hw_scan_request;
337 struct ieee80211_vif *hw_scan_vif;
340 struct ieee80211_channel *channel;
341 u64 beacon_int /* beacon interval in us */;
342 unsigned int rx_filter;
343 bool started, idle, scanning;
345 struct tasklet_hrtimer beacon_timer;
347 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
349 bool ps_poll_pending;
350 struct dentry *debugfs;
351 struct dentry *debugfs_ps;
353 struct sk_buff_head pending; /* packets pending */
355 * Only radios in the same group can communicate together (the
356 * channel has to match too). Each bit represents a group. A
357 * radio can be in more then one group.
360 struct dentry *debugfs_group;
364 /* difference between this hw's clock and the real clock, in usecs */
367 /* absolute beacon transmission time. Used to cover up "tx" delay. */
372 struct hwsim_radiotap_hdr {
373 struct ieee80211_radiotap_header hdr;
381 /* MAC80211_HWSIM netlinf family */
382 static struct genl_family hwsim_genl_family = {
383 .id = GENL_ID_GENERATE,
385 .name = "MAC80211_HWSIM",
387 .maxattr = HWSIM_ATTR_MAX,
390 /* MAC80211_HWSIM netlink policy */
392 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
393 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
394 .len = 6*sizeof(u8) },
395 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
396 .len = 6*sizeof(u8) },
397 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
398 .len = IEEE80211_MAX_DATA_LEN },
399 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
400 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
401 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
402 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
403 .len = IEEE80211_TX_MAX_RATES*sizeof(
404 struct hwsim_tx_rate)},
405 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
408 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
409 struct net_device *dev)
411 /* TODO: allow packet injection */
416 static inline u64 mac80211_hwsim_get_tsf_raw(void)
418 return ktime_to_us(ktime_get_real());
421 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
423 u64 now = mac80211_hwsim_get_tsf_raw();
424 return cpu_to_le64(now + data->tsf_offset);
427 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
428 struct ieee80211_vif *vif)
430 struct mac80211_hwsim_data *data = hw->priv;
431 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
434 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
435 struct ieee80211_vif *vif, u64 tsf)
437 struct mac80211_hwsim_data *data = hw->priv;
438 u64 now = mac80211_hwsim_get_tsf(hw, vif);
439 u32 bcn_int = data->beacon_int;
440 s64 delta = tsf - now;
442 data->tsf_offset += delta;
443 /* adjust after beaconing with new timestamp at old TBTT */
444 data->bcn_delta = do_div(delta, bcn_int);
447 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
448 struct sk_buff *tx_skb,
449 struct ieee80211_channel *chan)
451 struct mac80211_hwsim_data *data = hw->priv;
453 struct hwsim_radiotap_hdr *hdr;
455 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
456 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
458 if (!netif_running(hwsim_mon))
461 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
465 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
466 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
468 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
469 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
470 (1 << IEEE80211_RADIOTAP_RATE) |
471 (1 << IEEE80211_RADIOTAP_TSFT) |
472 (1 << IEEE80211_RADIOTAP_CHANNEL));
473 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
475 hdr->rt_rate = txrate->bitrate / 5;
476 hdr->rt_channel = cpu_to_le16(chan->center_freq);
477 flags = IEEE80211_CHAN_2GHZ;
478 if (txrate->flags & IEEE80211_RATE_ERP_G)
479 flags |= IEEE80211_CHAN_OFDM;
481 flags |= IEEE80211_CHAN_CCK;
482 hdr->rt_chbitmask = cpu_to_le16(flags);
484 skb->dev = hwsim_mon;
485 skb_set_mac_header(skb, 0);
486 skb->ip_summed = CHECKSUM_UNNECESSARY;
487 skb->pkt_type = PACKET_OTHERHOST;
488 skb->protocol = htons(ETH_P_802_2);
489 memset(skb->cb, 0, sizeof(skb->cb));
494 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
498 struct hwsim_radiotap_hdr *hdr;
500 struct ieee80211_hdr *hdr11;
502 if (!netif_running(hwsim_mon))
505 skb = dev_alloc_skb(100);
509 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
510 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
512 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
513 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
514 (1 << IEEE80211_RADIOTAP_CHANNEL));
517 hdr->rt_channel = cpu_to_le16(chan->center_freq);
518 flags = IEEE80211_CHAN_2GHZ;
519 hdr->rt_chbitmask = cpu_to_le16(flags);
521 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
522 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
523 IEEE80211_STYPE_ACK);
524 hdr11->duration_id = cpu_to_le16(0);
525 memcpy(hdr11->addr1, addr, ETH_ALEN);
527 skb->dev = hwsim_mon;
528 skb_set_mac_header(skb, 0);
529 skb->ip_summed = CHECKSUM_UNNECESSARY;
530 skb->pkt_type = PACKET_OTHERHOST;
531 skb->protocol = htons(ETH_P_802_2);
532 memset(skb->cb, 0, sizeof(skb->cb));
537 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
546 /* TODO: accept (some) Beacons by default and other frames only
547 * if pending PS-Poll has been sent */
550 /* Allow unicast frames to own address if there is a pending
552 if (data->ps_poll_pending &&
553 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
555 data->ps_poll_pending = false;
565 struct mac80211_hwsim_addr_match_data {
570 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
571 struct ieee80211_vif *vif)
573 struct mac80211_hwsim_addr_match_data *md = data;
574 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
579 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
582 struct mac80211_hwsim_addr_match_data md;
584 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
589 ieee80211_iterate_active_interfaces_atomic(data->hw,
590 IEEE80211_IFACE_ITER_NORMAL,
591 mac80211_hwsim_addr_iter,
597 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
598 struct sk_buff *my_skb,
602 struct mac80211_hwsim_data *data = hw->priv;
603 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
604 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
606 unsigned int hwsim_flags = 0;
608 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
610 if (data->ps != PS_DISABLED)
611 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
612 /* If the queue contains MAX_QUEUE skb's drop some */
613 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
614 /* Droping until WARN_QUEUE level */
615 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
616 skb_dequeue(&data->pending);
619 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
621 goto nla_put_failure;
623 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
625 if (msg_head == NULL) {
626 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
627 goto nla_put_failure;
630 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
631 sizeof(struct mac_address), data->addresses[1].addr))
632 goto nla_put_failure;
634 /* We get the skb->data */
635 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
636 goto nla_put_failure;
638 /* We get the flags for this transmission, and we translate them to
641 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
642 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
644 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
645 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
647 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
648 goto nla_put_failure;
650 /* We get the tx control (rate and retries) info*/
652 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
653 tx_attempts[i].idx = info->status.rates[i].idx;
654 tx_attempts[i].count = info->status.rates[i].count;
657 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
658 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
660 goto nla_put_failure;
662 /* We create a cookie to identify this skb */
663 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
664 goto nla_put_failure;
666 genlmsg_end(skb, msg_head);
667 genlmsg_unicast(&init_net, skb, dst_portid);
669 /* Enqueue the packet */
670 skb_queue_tail(&data->pending, my_skb);
674 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
677 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
678 struct ieee80211_channel *c2)
683 return c1->center_freq == c2->center_freq;
686 struct tx_iter_data {
687 struct ieee80211_channel *channel;
691 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
692 struct ieee80211_vif *vif)
694 struct tx_iter_data *data = _data;
696 if (!vif->chanctx_conf)
699 if (!hwsim_chans_compat(data->channel,
700 rcu_dereference(vif->chanctx_conf)->def.chan))
703 data->receive = true;
706 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
708 struct ieee80211_channel *chan)
710 struct mac80211_hwsim_data *data = hw->priv, *data2;
712 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
713 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
714 struct ieee80211_rx_status rx_status;
717 memset(&rx_status, 0, sizeof(rx_status));
718 rx_status.flag |= RX_FLAG_MACTIME_START;
719 rx_status.freq = chan->center_freq;
720 rx_status.band = chan->band;
721 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
723 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
725 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
726 rx_status.flag |= RX_FLAG_VHT;
728 rx_status.rate_idx = info->control.rates[0].idx;
729 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
730 rx_status.flag |= RX_FLAG_HT;
732 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
733 rx_status.flag |= RX_FLAG_40MHZ;
734 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
735 rx_status.flag |= RX_FLAG_SHORT_GI;
736 /* TODO: simulate real signal strength (and optional packet loss) */
737 rx_status.signal = data->power_level - 50;
739 if (data->ps != PS_DISABLED)
740 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
742 /* release the skb's source info */
750 * Get absolute mactime here so all HWs RX at the "same time", and
751 * absolute TX time for beacon mactime so the timestamp matches.
752 * Giving beacons a different mactime than non-beacons looks messy, but
753 * it helps the Toffset be exact and a ~10us mactime discrepancy
754 * probably doesn't really matter.
756 if (ieee80211_is_beacon(hdr->frame_control) ||
757 ieee80211_is_probe_resp(hdr->frame_control))
758 now = data->abs_bcn_ts;
760 now = mac80211_hwsim_get_tsf_raw();
762 /* Copy skb to all enabled radios that are on the current frequency */
763 spin_lock(&hwsim_radio_lock);
764 list_for_each_entry(data2, &hwsim_radios, list) {
765 struct sk_buff *nskb;
766 struct tx_iter_data tx_iter_data = {
774 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
775 !hwsim_ps_rx_ok(data2, skb))
778 if (!(data->group & data2->group))
781 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
782 !hwsim_chans_compat(chan, data2->channel)) {
783 ieee80211_iterate_active_interfaces_atomic(
784 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
785 mac80211_hwsim_tx_iter, &tx_iter_data);
786 if (!tx_iter_data.receive)
791 * reserve some space for our vendor and the normal
792 * radiotap header, since we're copying anyway
794 if (skb->len < PAGE_SIZE && paged_rx) {
795 struct page *page = alloc_page(GFP_ATOMIC);
800 nskb = dev_alloc_skb(128);
806 memcpy(page_address(page), skb->data, skb->len);
807 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
809 nskb = skb_copy(skb, GFP_ATOMIC);
814 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
817 rx_status.mactime = now + data2->tsf_offset;
820 * Don't enable this code by default as the OUI 00:00:00
821 * is registered to Xerox so we shouldn't use it here, it
822 * might find its way into pcap files.
823 * Note that this code requires the headroom in the SKB
824 * that was allocated earlier.
826 rx_status.vendor_radiotap_oui[0] = 0x00;
827 rx_status.vendor_radiotap_oui[1] = 0x00;
828 rx_status.vendor_radiotap_oui[2] = 0x00;
829 rx_status.vendor_radiotap_subns = 127;
831 * Radiotap vendor namespaces can (and should) also be
832 * split into fields by using the standard radiotap
833 * presence bitmap mechanism. Use just BIT(0) here for
834 * the presence bitmap.
836 rx_status.vendor_radiotap_bitmap = BIT(0);
837 /* We have 8 bytes of (dummy) data */
838 rx_status.vendor_radiotap_len = 8;
839 /* For testing, also require it to be aligned */
840 rx_status.vendor_radiotap_align = 8;
842 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
845 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
846 ieee80211_rx_irqsafe(data2->hw, nskb);
848 spin_unlock(&hwsim_radio_lock);
853 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
854 struct ieee80211_tx_control *control,
857 struct mac80211_hwsim_data *data = hw->priv;
858 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
859 struct ieee80211_chanctx_conf *chanctx_conf;
860 struct ieee80211_channel *channel;
864 if (WARN_ON(skb->len < 10)) {
865 /* Should not happen; just a sanity check for addr1 use */
871 channel = data->channel;
872 } else if (txi->hw_queue == 4) {
873 channel = data->tmp_chan;
875 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
877 channel = chanctx_conf->def.chan;
882 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
887 if (data->idle && !data->tmp_chan) {
888 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
893 if (txi->control.vif)
894 hwsim_check_magic(txi->control.vif);
896 hwsim_check_sta_magic(control->sta);
898 txi->rate_driver_data[0] = channel;
900 mac80211_hwsim_monitor_rx(hw, skb, channel);
902 /* wmediumd mode check */
903 _portid = ACCESS_ONCE(wmediumd_portid);
906 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
908 /* NO wmediumd detected, perfect medium simulation */
909 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
911 if (ack && skb->len >= 16) {
912 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
913 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
916 ieee80211_tx_info_clear_status(txi);
918 /* frame was transmitted at most favorable rate at first attempt */
919 txi->control.rates[0].count = 1;
920 txi->control.rates[1].idx = -1;
922 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
923 txi->flags |= IEEE80211_TX_STAT_ACK;
924 ieee80211_tx_status_irqsafe(hw, skb);
928 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
930 struct mac80211_hwsim_data *data = hw->priv;
931 wiphy_debug(hw->wiphy, "%s\n", __func__);
932 data->started = true;
937 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
939 struct mac80211_hwsim_data *data = hw->priv;
940 data->started = false;
941 tasklet_hrtimer_cancel(&data->beacon_timer);
942 wiphy_debug(hw->wiphy, "%s\n", __func__);
946 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
947 struct ieee80211_vif *vif)
949 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
950 __func__, ieee80211_vif_type_p2p(vif),
952 hwsim_set_magic(vif);
955 vif->hw_queue[IEEE80211_AC_VO] = 0;
956 vif->hw_queue[IEEE80211_AC_VI] = 1;
957 vif->hw_queue[IEEE80211_AC_BE] = 2;
958 vif->hw_queue[IEEE80211_AC_BK] = 3;
964 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
965 struct ieee80211_vif *vif,
966 enum nl80211_iftype newtype,
969 newtype = ieee80211_iftype_p2p(newtype, newp2p);
970 wiphy_debug(hw->wiphy,
971 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
972 __func__, ieee80211_vif_type_p2p(vif),
974 hwsim_check_magic(vif);
977 * interface may change from non-AP to AP in
978 * which case this needs to be set up again
985 static void mac80211_hwsim_remove_interface(
986 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
988 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
989 __func__, ieee80211_vif_type_p2p(vif),
991 hwsim_check_magic(vif);
992 hwsim_clear_magic(vif);
995 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
997 struct ieee80211_channel *chan)
999 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1001 mac80211_hwsim_monitor_rx(hw, skb, chan);
1004 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1006 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1010 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1011 struct ieee80211_vif *vif)
1013 struct mac80211_hwsim_data *data = arg;
1014 struct ieee80211_hw *hw = data->hw;
1015 struct ieee80211_tx_info *info;
1016 struct ieee80211_rate *txrate;
1017 struct ieee80211_mgmt *mgmt;
1018 struct sk_buff *skb;
1020 hwsim_check_magic(vif);
1022 if (vif->type != NL80211_IFTYPE_AP &&
1023 vif->type != NL80211_IFTYPE_MESH_POINT &&
1024 vif->type != NL80211_IFTYPE_ADHOC)
1027 skb = ieee80211_beacon_get(hw, vif);
1030 info = IEEE80211_SKB_CB(skb);
1031 txrate = ieee80211_get_tx_rate(hw, info);
1033 mgmt = (struct ieee80211_mgmt *) skb->data;
1034 /* fake header transmission time */
1035 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1036 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1038 24 * 8 * 10 / txrate->bitrate);
1040 mac80211_hwsim_tx_frame(hw, skb,
1041 rcu_dereference(vif->chanctx_conf)->def.chan);
1044 static enum hrtimer_restart
1045 mac80211_hwsim_beacon(struct hrtimer *timer)
1047 struct mac80211_hwsim_data *data =
1048 container_of(timer, struct mac80211_hwsim_data,
1049 beacon_timer.timer);
1050 struct ieee80211_hw *hw = data->hw;
1051 u64 bcn_int = data->beacon_int;
1057 ieee80211_iterate_active_interfaces_atomic(
1058 hw, IEEE80211_IFACE_ITER_NORMAL,
1059 mac80211_hwsim_beacon_tx, data);
1061 /* beacon at new TBTT + beacon interval */
1062 if (data->bcn_delta) {
1063 bcn_int -= data->bcn_delta;
1064 data->bcn_delta = 0;
1067 next_bcn = ktime_add(hrtimer_get_expires(timer),
1068 ns_to_ktime(bcn_int * 1000));
1069 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1071 return HRTIMER_NORESTART;
1074 static const char * const hwsim_chanwidths[] = {
1075 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1076 [NL80211_CHAN_WIDTH_20] = "ht20",
1077 [NL80211_CHAN_WIDTH_40] = "ht40",
1078 [NL80211_CHAN_WIDTH_80] = "vht80",
1079 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1080 [NL80211_CHAN_WIDTH_160] = "vht160",
1083 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1085 struct mac80211_hwsim_data *data = hw->priv;
1086 struct ieee80211_conf *conf = &hw->conf;
1087 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1088 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1089 [IEEE80211_SMPS_OFF] = "off",
1090 [IEEE80211_SMPS_STATIC] = "static",
1091 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1094 if (conf->chandef.chan)
1095 wiphy_debug(hw->wiphy,
1096 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1098 conf->chandef.chan->center_freq,
1099 conf->chandef.center_freq1,
1100 conf->chandef.center_freq2,
1101 hwsim_chanwidths[conf->chandef.width],
1102 !!(conf->flags & IEEE80211_CONF_IDLE),
1103 !!(conf->flags & IEEE80211_CONF_PS),
1104 smps_modes[conf->smps_mode]);
1106 wiphy_debug(hw->wiphy,
1107 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1109 !!(conf->flags & IEEE80211_CONF_IDLE),
1110 !!(conf->flags & IEEE80211_CONF_PS),
1111 smps_modes[conf->smps_mode]);
1113 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1115 data->channel = conf->chandef.chan;
1117 WARN_ON(data->channel && channels > 1);
1119 data->power_level = conf->power_level;
1120 if (!data->started || !data->beacon_int)
1121 tasklet_hrtimer_cancel(&data->beacon_timer);
1122 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1123 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1124 u32 bcn_int = data->beacon_int;
1125 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1127 tasklet_hrtimer_start(&data->beacon_timer,
1128 ns_to_ktime(until_tbtt * 1000),
1136 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1137 unsigned int changed_flags,
1138 unsigned int *total_flags,u64 multicast)
1140 struct mac80211_hwsim_data *data = hw->priv;
1142 wiphy_debug(hw->wiphy, "%s\n", __func__);
1144 data->rx_filter = 0;
1145 if (*total_flags & FIF_PROMISC_IN_BSS)
1146 data->rx_filter |= FIF_PROMISC_IN_BSS;
1147 if (*total_flags & FIF_ALLMULTI)
1148 data->rx_filter |= FIF_ALLMULTI;
1150 *total_flags = data->rx_filter;
1153 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1154 struct ieee80211_vif *vif,
1155 struct ieee80211_bss_conf *info,
1158 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1159 struct mac80211_hwsim_data *data = hw->priv;
1161 hwsim_check_magic(vif);
1163 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
1165 if (changed & BSS_CHANGED_BSSID) {
1166 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1167 __func__, info->bssid);
1168 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1171 if (changed & BSS_CHANGED_ASSOC) {
1172 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1173 info->assoc, info->aid);
1174 vp->assoc = info->assoc;
1175 vp->aid = info->aid;
1178 if (changed & BSS_CHANGED_BEACON_INT) {
1179 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1180 data->beacon_int = info->beacon_int * 1024;
1183 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1184 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1185 if (data->started &&
1186 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1187 info->enable_beacon) {
1188 u64 tsf, until_tbtt;
1190 if (WARN_ON(!data->beacon_int))
1191 data->beacon_int = 1000 * 1024;
1192 tsf = mac80211_hwsim_get_tsf(hw, vif);
1193 bcn_int = data->beacon_int;
1194 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1195 tasklet_hrtimer_start(&data->beacon_timer,
1196 ns_to_ktime(until_tbtt * 1000),
1198 } else if (!info->enable_beacon)
1199 tasklet_hrtimer_cancel(&data->beacon_timer);
1202 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1203 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1204 info->use_cts_prot);
1207 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1208 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1209 info->use_short_preamble);
1212 if (changed & BSS_CHANGED_ERP_SLOT) {
1213 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1216 if (changed & BSS_CHANGED_HT) {
1217 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1218 info->ht_operation_mode);
1221 if (changed & BSS_CHANGED_BASIC_RATES) {
1222 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1223 (unsigned long long) info->basic_rates);
1226 if (changed & BSS_CHANGED_TXPOWER)
1227 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1230 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1231 struct ieee80211_vif *vif,
1232 struct ieee80211_sta *sta)
1234 hwsim_check_magic(vif);
1235 hwsim_set_sta_magic(sta);
1240 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1241 struct ieee80211_vif *vif,
1242 struct ieee80211_sta *sta)
1244 hwsim_check_magic(vif);
1245 hwsim_clear_sta_magic(sta);
1250 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1251 struct ieee80211_vif *vif,
1252 enum sta_notify_cmd cmd,
1253 struct ieee80211_sta *sta)
1255 hwsim_check_magic(vif);
1258 case STA_NOTIFY_SLEEP:
1259 case STA_NOTIFY_AWAKE:
1260 /* TODO: make good use of these flags */
1263 WARN(1, "Invalid sta notify: %d\n", cmd);
1268 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1269 struct ieee80211_sta *sta,
1272 hwsim_check_sta_magic(sta);
1276 static int mac80211_hwsim_conf_tx(
1277 struct ieee80211_hw *hw,
1278 struct ieee80211_vif *vif, u16 queue,
1279 const struct ieee80211_tx_queue_params *params)
1281 wiphy_debug(hw->wiphy,
1282 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1284 params->txop, params->cw_min,
1285 params->cw_max, params->aifs);
1289 static int mac80211_hwsim_get_survey(
1290 struct ieee80211_hw *hw, int idx,
1291 struct survey_info *survey)
1293 struct ieee80211_conf *conf = &hw->conf;
1295 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1300 /* Current channel */
1301 survey->channel = conf->chandef.chan;
1304 * Magically conjured noise level --- this is only ok for simulated hardware.
1306 * A real driver which cannot determine the real channel noise MUST NOT
1307 * report any noise, especially not a magically conjured one :-)
1309 survey->filled = SURVEY_INFO_NOISE_DBM;
1310 survey->noise = -92;
1315 #ifdef CONFIG_NL80211_TESTMODE
1317 * This section contains example code for using netlink
1318 * attributes with the testmode command in nl80211.
1321 /* These enums need to be kept in sync with userspace */
1322 enum hwsim_testmode_attr {
1323 __HWSIM_TM_ATTR_INVALID = 0,
1324 HWSIM_TM_ATTR_CMD = 1,
1325 HWSIM_TM_ATTR_PS = 2,
1328 __HWSIM_TM_ATTR_AFTER_LAST,
1329 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1332 enum hwsim_testmode_cmd {
1333 HWSIM_TM_CMD_SET_PS = 0,
1334 HWSIM_TM_CMD_GET_PS = 1,
1335 HWSIM_TM_CMD_STOP_QUEUES = 2,
1336 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1339 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1340 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1341 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1344 static int hwsim_fops_ps_write(void *dat, u64 val);
1346 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1347 void *data, int len)
1349 struct mac80211_hwsim_data *hwsim = hw->priv;
1350 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1351 struct sk_buff *skb;
1354 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1355 hwsim_testmode_policy);
1359 if (!tb[HWSIM_TM_ATTR_CMD])
1362 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1363 case HWSIM_TM_CMD_SET_PS:
1364 if (!tb[HWSIM_TM_ATTR_PS])
1366 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1367 return hwsim_fops_ps_write(hwsim, ps);
1368 case HWSIM_TM_CMD_GET_PS:
1369 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1370 nla_total_size(sizeof(u32)));
1373 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1374 goto nla_put_failure;
1375 return cfg80211_testmode_reply(skb);
1376 case HWSIM_TM_CMD_STOP_QUEUES:
1377 ieee80211_stop_queues(hw);
1379 case HWSIM_TM_CMD_WAKE_QUEUES:
1380 ieee80211_wake_queues(hw);
1392 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1393 struct ieee80211_vif *vif,
1394 enum ieee80211_ampdu_mlme_action action,
1395 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1399 case IEEE80211_AMPDU_TX_START:
1400 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1402 case IEEE80211_AMPDU_TX_STOP_CONT:
1403 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1404 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1405 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1407 case IEEE80211_AMPDU_TX_OPERATIONAL:
1409 case IEEE80211_AMPDU_RX_START:
1410 case IEEE80211_AMPDU_RX_STOP:
1419 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1421 /* Not implemented, queues only on kernel side */
1424 static void hw_scan_work(struct work_struct *work)
1426 struct mac80211_hwsim_data *hwsim =
1427 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1428 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1431 mutex_lock(&hwsim->mutex);
1432 if (hwsim->scan_chan_idx >= req->n_channels) {
1433 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1434 ieee80211_scan_completed(hwsim->hw, false);
1435 hwsim->hw_scan_request = NULL;
1436 hwsim->hw_scan_vif = NULL;
1437 hwsim->tmp_chan = NULL;
1438 mutex_unlock(&hwsim->mutex);
1442 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1443 req->channels[hwsim->scan_chan_idx]->center_freq);
1445 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1446 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1452 for (i = 0; i < req->n_ssids; i++) {
1453 struct sk_buff *probe;
1455 probe = ieee80211_probereq_get(hwsim->hw,
1458 req->ssids[i].ssid_len,
1464 memcpy(skb_put(probe, req->ie_len), req->ie,
1468 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1473 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1474 msecs_to_jiffies(dwell));
1475 hwsim->scan_chan_idx++;
1476 mutex_unlock(&hwsim->mutex);
1479 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1480 struct ieee80211_vif *vif,
1481 struct cfg80211_scan_request *req)
1483 struct mac80211_hwsim_data *hwsim = hw->priv;
1485 mutex_lock(&hwsim->mutex);
1486 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1487 mutex_unlock(&hwsim->mutex);
1490 hwsim->hw_scan_request = req;
1491 hwsim->hw_scan_vif = vif;
1492 hwsim->scan_chan_idx = 0;
1493 mutex_unlock(&hwsim->mutex);
1495 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1497 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1502 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1503 struct ieee80211_vif *vif)
1505 struct mac80211_hwsim_data *hwsim = hw->priv;
1507 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1509 cancel_delayed_work_sync(&hwsim->hw_scan);
1511 mutex_lock(&hwsim->mutex);
1512 ieee80211_scan_completed(hwsim->hw, true);
1513 hwsim->tmp_chan = NULL;
1514 hwsim->hw_scan_request = NULL;
1515 hwsim->hw_scan_vif = NULL;
1516 mutex_unlock(&hwsim->mutex);
1519 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1521 struct mac80211_hwsim_data *hwsim = hw->priv;
1523 mutex_lock(&hwsim->mutex);
1525 if (hwsim->scanning) {
1526 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1530 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1531 hwsim->scanning = true;
1534 mutex_unlock(&hwsim->mutex);
1537 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1539 struct mac80211_hwsim_data *hwsim = hw->priv;
1541 mutex_lock(&hwsim->mutex);
1543 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1544 hwsim->scanning = false;
1546 mutex_unlock(&hwsim->mutex);
1549 static void hw_roc_done(struct work_struct *work)
1551 struct mac80211_hwsim_data *hwsim =
1552 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1554 mutex_lock(&hwsim->mutex);
1555 ieee80211_remain_on_channel_expired(hwsim->hw);
1556 hwsim->tmp_chan = NULL;
1557 mutex_unlock(&hwsim->mutex);
1559 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1562 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1563 struct ieee80211_vif *vif,
1564 struct ieee80211_channel *chan,
1566 enum ieee80211_roc_type type)
1568 struct mac80211_hwsim_data *hwsim = hw->priv;
1570 mutex_lock(&hwsim->mutex);
1571 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1572 mutex_unlock(&hwsim->mutex);
1576 hwsim->tmp_chan = chan;
1577 mutex_unlock(&hwsim->mutex);
1579 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1580 chan->center_freq, duration);
1582 ieee80211_ready_on_channel(hw);
1584 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1585 msecs_to_jiffies(duration));
1589 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1591 struct mac80211_hwsim_data *hwsim = hw->priv;
1593 cancel_delayed_work_sync(&hwsim->roc_done);
1595 mutex_lock(&hwsim->mutex);
1596 hwsim->tmp_chan = NULL;
1597 mutex_unlock(&hwsim->mutex);
1599 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1604 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1605 struct ieee80211_chanctx_conf *ctx)
1607 hwsim_set_chanctx_magic(ctx);
1608 wiphy_debug(hw->wiphy,
1609 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1610 ctx->def.chan->center_freq, ctx->def.width,
1611 ctx->def.center_freq1, ctx->def.center_freq2);
1615 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1616 struct ieee80211_chanctx_conf *ctx)
1618 wiphy_debug(hw->wiphy,
1619 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1620 ctx->def.chan->center_freq, ctx->def.width,
1621 ctx->def.center_freq1, ctx->def.center_freq2);
1622 hwsim_check_chanctx_magic(ctx);
1623 hwsim_clear_chanctx_magic(ctx);
1626 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1627 struct ieee80211_chanctx_conf *ctx,
1630 hwsim_check_chanctx_magic(ctx);
1631 wiphy_debug(hw->wiphy,
1632 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1633 ctx->def.chan->center_freq, ctx->def.width,
1634 ctx->def.center_freq1, ctx->def.center_freq2);
1637 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1638 struct ieee80211_vif *vif,
1639 struct ieee80211_chanctx_conf *ctx)
1641 hwsim_check_magic(vif);
1642 hwsim_check_chanctx_magic(ctx);
1647 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1648 struct ieee80211_vif *vif,
1649 struct ieee80211_chanctx_conf *ctx)
1651 hwsim_check_magic(vif);
1652 hwsim_check_chanctx_magic(ctx);
1655 static struct ieee80211_ops mac80211_hwsim_ops =
1657 .tx = mac80211_hwsim_tx,
1658 .start = mac80211_hwsim_start,
1659 .stop = mac80211_hwsim_stop,
1660 .add_interface = mac80211_hwsim_add_interface,
1661 .change_interface = mac80211_hwsim_change_interface,
1662 .remove_interface = mac80211_hwsim_remove_interface,
1663 .config = mac80211_hwsim_config,
1664 .configure_filter = mac80211_hwsim_configure_filter,
1665 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1666 .sta_add = mac80211_hwsim_sta_add,
1667 .sta_remove = mac80211_hwsim_sta_remove,
1668 .sta_notify = mac80211_hwsim_sta_notify,
1669 .set_tim = mac80211_hwsim_set_tim,
1670 .conf_tx = mac80211_hwsim_conf_tx,
1671 .get_survey = mac80211_hwsim_get_survey,
1672 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1673 .ampdu_action = mac80211_hwsim_ampdu_action,
1674 .sw_scan_start = mac80211_hwsim_sw_scan,
1675 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1676 .flush = mac80211_hwsim_flush,
1677 .get_tsf = mac80211_hwsim_get_tsf,
1678 .set_tsf = mac80211_hwsim_set_tsf,
1682 static void mac80211_hwsim_free(void)
1684 struct list_head tmplist, *i, *tmp;
1685 struct mac80211_hwsim_data *data, *tmpdata;
1687 INIT_LIST_HEAD(&tmplist);
1689 spin_lock_bh(&hwsim_radio_lock);
1690 list_for_each_safe(i, tmp, &hwsim_radios)
1691 list_move(i, &tmplist);
1692 spin_unlock_bh(&hwsim_radio_lock);
1694 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1695 debugfs_remove(data->debugfs_group);
1696 debugfs_remove(data->debugfs_ps);
1697 debugfs_remove(data->debugfs);
1698 ieee80211_unregister_hw(data->hw);
1699 device_release_driver(data->dev);
1700 device_unregister(data->dev);
1701 ieee80211_free_hw(data->hw);
1703 class_destroy(hwsim_class);
1707 static struct device_driver mac80211_hwsim_driver = {
1708 .name = "mac80211_hwsim",
1709 .bus = &platform_bus_type,
1710 .owner = THIS_MODULE,
1713 static const struct net_device_ops hwsim_netdev_ops = {
1714 .ndo_start_xmit = hwsim_mon_xmit,
1715 .ndo_change_mtu = eth_change_mtu,
1716 .ndo_set_mac_address = eth_mac_addr,
1717 .ndo_validate_addr = eth_validate_addr,
1720 static void hwsim_mon_setup(struct net_device *dev)
1722 dev->netdev_ops = &hwsim_netdev_ops;
1723 dev->destructor = free_netdev;
1725 dev->tx_queue_len = 0;
1726 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1727 memset(dev->dev_addr, 0, ETH_ALEN);
1728 dev->dev_addr[0] = 0x12;
1732 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1734 struct mac80211_hwsim_data *data = dat;
1735 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1736 struct sk_buff *skb;
1737 struct ieee80211_pspoll *pspoll;
1742 wiphy_debug(data->hw->wiphy,
1743 "%s: send PS-Poll to %pM for aid %d\n",
1744 __func__, vp->bssid, vp->aid);
1746 skb = dev_alloc_skb(sizeof(*pspoll));
1749 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1750 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1751 IEEE80211_STYPE_PSPOLL |
1753 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1754 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1755 memcpy(pspoll->ta, mac, ETH_ALEN);
1758 mac80211_hwsim_tx_frame(data->hw, skb,
1759 rcu_dereference(vif->chanctx_conf)->def.chan);
1763 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1764 struct ieee80211_vif *vif, int ps)
1766 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1767 struct sk_buff *skb;
1768 struct ieee80211_hdr *hdr;
1773 wiphy_debug(data->hw->wiphy,
1774 "%s: send data::nullfunc to %pM ps=%d\n",
1775 __func__, vp->bssid, ps);
1777 skb = dev_alloc_skb(sizeof(*hdr));
1780 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1781 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1782 IEEE80211_STYPE_NULLFUNC |
1783 (ps ? IEEE80211_FCTL_PM : 0));
1784 hdr->duration_id = cpu_to_le16(0);
1785 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1786 memcpy(hdr->addr2, mac, ETH_ALEN);
1787 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1790 mac80211_hwsim_tx_frame(data->hw, skb,
1791 rcu_dereference(vif->chanctx_conf)->def.chan);
1796 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1797 struct ieee80211_vif *vif)
1799 struct mac80211_hwsim_data *data = dat;
1800 hwsim_send_nullfunc(data, mac, vif, 1);
1804 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1805 struct ieee80211_vif *vif)
1807 struct mac80211_hwsim_data *data = dat;
1808 hwsim_send_nullfunc(data, mac, vif, 0);
1812 static int hwsim_fops_ps_read(void *dat, u64 *val)
1814 struct mac80211_hwsim_data *data = dat;
1819 static int hwsim_fops_ps_write(void *dat, u64 val)
1821 struct mac80211_hwsim_data *data = dat;
1822 enum ps_mode old_ps;
1824 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1825 val != PS_MANUAL_POLL)
1831 if (val == PS_MANUAL_POLL) {
1832 ieee80211_iterate_active_interfaces(data->hw,
1833 IEEE80211_IFACE_ITER_NORMAL,
1834 hwsim_send_ps_poll, data);
1835 data->ps_poll_pending = true;
1836 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1837 ieee80211_iterate_active_interfaces(data->hw,
1838 IEEE80211_IFACE_ITER_NORMAL,
1839 hwsim_send_nullfunc_ps,
1841 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1842 ieee80211_iterate_active_interfaces(data->hw,
1843 IEEE80211_IFACE_ITER_NORMAL,
1844 hwsim_send_nullfunc_no_ps,
1851 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1855 static int hwsim_fops_group_read(void *dat, u64 *val)
1857 struct mac80211_hwsim_data *data = dat;
1862 static int hwsim_fops_group_write(void *dat, u64 val)
1864 struct mac80211_hwsim_data *data = dat;
1869 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1870 hwsim_fops_group_read, hwsim_fops_group_write,
1873 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1874 struct mac_address *addr)
1876 struct mac80211_hwsim_data *data;
1877 bool _found = false;
1879 spin_lock_bh(&hwsim_radio_lock);
1880 list_for_each_entry(data, &hwsim_radios, list) {
1881 if (memcmp(data->addresses[1].addr, addr,
1882 sizeof(struct mac_address)) == 0) {
1887 spin_unlock_bh(&hwsim_radio_lock);
1895 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1896 struct genl_info *info)
1899 struct ieee80211_hdr *hdr;
1900 struct mac80211_hwsim_data *data2;
1901 struct ieee80211_tx_info *txi;
1902 struct hwsim_tx_rate *tx_attempts;
1903 unsigned long ret_skb_ptr;
1904 struct sk_buff *skb, *tmp;
1905 struct mac_address *src;
1906 unsigned int hwsim_flags;
1911 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1912 !info->attrs[HWSIM_ATTR_FLAGS] ||
1913 !info->attrs[HWSIM_ATTR_COOKIE] ||
1914 !info->attrs[HWSIM_ATTR_TX_INFO])
1917 src = (struct mac_address *)nla_data(
1918 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1919 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1921 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1923 data2 = get_hwsim_data_ref_from_addr(src);
1928 /* look for the skb matching the cookie passed back from user */
1929 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1930 if ((unsigned long)skb == ret_skb_ptr) {
1931 skb_unlink(skb, &data2->pending);
1941 /* Tx info received because the frame was broadcasted on user space,
1942 so we get all the necessary info: tx attempts and skb control buff */
1944 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1945 info->attrs[HWSIM_ATTR_TX_INFO]);
1947 /* now send back TX status */
1948 txi = IEEE80211_SKB_CB(skb);
1950 ieee80211_tx_info_clear_status(txi);
1952 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1953 txi->status.rates[i].idx = tx_attempts[i].idx;
1954 txi->status.rates[i].count = tx_attempts[i].count;
1955 /*txi->status.rates[i].flags = 0;*/
1958 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1960 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1961 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1962 if (skb->len >= 16) {
1963 hdr = (struct ieee80211_hdr *) skb->data;
1964 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1967 txi->flags |= IEEE80211_TX_STAT_ACK;
1969 ieee80211_tx_status_irqsafe(data2->hw, skb);
1976 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1977 struct genl_info *info)
1980 struct mac80211_hwsim_data *data2;
1981 struct ieee80211_rx_status rx_status;
1982 struct mac_address *dst;
1985 struct sk_buff *skb = NULL;
1987 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1988 !info->attrs[HWSIM_ATTR_FRAME] ||
1989 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1990 !info->attrs[HWSIM_ATTR_SIGNAL])
1993 dst = (struct mac_address *)nla_data(
1994 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1996 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1997 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1999 /* Allocate new skb here */
2000 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2004 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2006 memcpy(skb_put(skb, frame_data_len), frame_data,
2011 data2 = get_hwsim_data_ref_from_addr(dst);
2016 /* check if radio is configured properly */
2018 if (data2->idle || !data2->started)
2021 /*A frame is received from user space*/
2022 memset(&rx_status, 0, sizeof(rx_status));
2023 rx_status.freq = data2->channel->center_freq;
2024 rx_status.band = data2->channel->band;
2025 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2026 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2028 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2029 ieee80211_rx_irqsafe(data2->hw, skb);
2033 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2040 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2041 struct genl_info *info)
2046 wmediumd_portid = info->snd_portid;
2048 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2049 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2053 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2057 /* Generic Netlink operations array */
2058 static struct genl_ops hwsim_ops[] = {
2060 .cmd = HWSIM_CMD_REGISTER,
2061 .policy = hwsim_genl_policy,
2062 .doit = hwsim_register_received_nl,
2063 .flags = GENL_ADMIN_PERM,
2066 .cmd = HWSIM_CMD_FRAME,
2067 .policy = hwsim_genl_policy,
2068 .doit = hwsim_cloned_frame_received_nl,
2071 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2072 .policy = hwsim_genl_policy,
2073 .doit = hwsim_tx_info_frame_received_nl,
2077 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2078 unsigned long state,
2081 struct netlink_notify *notify = _notify;
2083 if (state != NETLINK_URELEASE)
2086 if (notify->portid == wmediumd_portid) {
2087 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2088 " socket, switching to perfect channel medium\n");
2089 wmediumd_portid = 0;
2095 static struct notifier_block hwsim_netlink_notifier = {
2096 .notifier_call = mac80211_hwsim_netlink_notify,
2099 static int hwsim_init_netlink(void)
2103 /* userspace test API hasn't been adjusted for multi-channel */
2107 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2109 rc = genl_register_family_with_ops(&hwsim_genl_family,
2110 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2114 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2121 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2125 static void hwsim_exit_netlink(void)
2129 /* userspace test API hasn't been adjusted for multi-channel */
2133 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2134 /* unregister the notifier */
2135 netlink_unregister_notifier(&hwsim_netlink_notifier);
2136 /* unregister the family */
2137 ret = genl_unregister_family(&hwsim_genl_family);
2139 printk(KERN_DEBUG "mac80211_hwsim: "
2140 "unregister family %i\n", ret);
2143 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2144 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2145 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2146 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2147 #ifdef CONFIG_MAC80211_MESH
2148 BIT(NL80211_IFTYPE_MESH_POINT) |
2150 BIT(NL80211_IFTYPE_AP) |
2151 BIT(NL80211_IFTYPE_P2P_GO) },
2152 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2155 static struct ieee80211_iface_combination hwsim_if_comb = {
2156 .limits = hwsim_if_limits,
2157 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2158 .max_interfaces = 2048,
2159 .num_different_channels = 1,
2162 static int __init init_mac80211_hwsim(void)
2166 struct mac80211_hwsim_data *data;
2167 struct ieee80211_hw *hw;
2168 enum ieee80211_band band;
2170 if (radios < 1 || radios > 100)
2177 hwsim_if_comb.num_different_channels = channels;
2178 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2179 mac80211_hwsim_ops.cancel_hw_scan =
2180 mac80211_hwsim_cancel_hw_scan;
2181 mac80211_hwsim_ops.sw_scan_start = NULL;
2182 mac80211_hwsim_ops.sw_scan_complete = NULL;
2183 mac80211_hwsim_ops.remain_on_channel =
2185 mac80211_hwsim_ops.cancel_remain_on_channel =
2186 mac80211_hwsim_croc;
2187 mac80211_hwsim_ops.add_chanctx =
2188 mac80211_hwsim_add_chanctx;
2189 mac80211_hwsim_ops.remove_chanctx =
2190 mac80211_hwsim_remove_chanctx;
2191 mac80211_hwsim_ops.change_chanctx =
2192 mac80211_hwsim_change_chanctx;
2193 mac80211_hwsim_ops.assign_vif_chanctx =
2194 mac80211_hwsim_assign_vif_chanctx;
2195 mac80211_hwsim_ops.unassign_vif_chanctx =
2196 mac80211_hwsim_unassign_vif_chanctx;
2199 spin_lock_init(&hwsim_radio_lock);
2200 INIT_LIST_HEAD(&hwsim_radios);
2202 err = driver_register(&mac80211_hwsim_driver);
2206 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2207 if (IS_ERR(hwsim_class)) {
2208 err = PTR_ERR(hwsim_class);
2209 goto failed_unregister_driver;
2212 memset(addr, 0, ETH_ALEN);
2215 for (i = 0; i < radios; i++) {
2216 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2218 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2220 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2228 data->dev = device_create(hwsim_class, NULL, 0, hw,
2230 if (IS_ERR(data->dev)) {
2232 "mac80211_hwsim: device_create failed (%ld)\n",
2233 PTR_ERR(data->dev));
2235 goto failed_drvdata;
2237 data->dev->driver = &mac80211_hwsim_driver;
2238 err = device_bind_driver(data->dev);
2241 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2246 skb_queue_head_init(&data->pending);
2248 SET_IEEE80211_DEV(hw, data->dev);
2251 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2252 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2253 data->addresses[1].addr[0] |= 0x40;
2254 hw->wiphy->n_addresses = 2;
2255 hw->wiphy->addresses = data->addresses;
2257 hw->wiphy->iface_combinations = &hwsim_if_comb;
2258 hw->wiphy->n_iface_combinations = 1;
2261 hw->wiphy->max_scan_ssids = 255;
2262 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2263 hw->wiphy->max_remain_on_channel_duration = 1000;
2266 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2267 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2269 hw->channel_change_time = 1;
2271 hw->offchannel_tx_hw_queue = 4;
2272 hw->wiphy->interface_modes =
2273 BIT(NL80211_IFTYPE_STATION) |
2274 BIT(NL80211_IFTYPE_AP) |
2275 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2276 BIT(NL80211_IFTYPE_P2P_GO) |
2277 BIT(NL80211_IFTYPE_ADHOC) |
2278 BIT(NL80211_IFTYPE_MESH_POINT) |
2279 BIT(NL80211_IFTYPE_P2P_DEVICE);
2281 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2282 IEEE80211_HW_SIGNAL_DBM |
2283 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2284 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2285 IEEE80211_HW_AMPDU_AGGREGATION |
2286 IEEE80211_HW_WANT_MONITOR_VIF |
2287 IEEE80211_HW_QUEUE_CONTROL;
2289 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2290 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2292 /* ask mac80211 to reserve space for magic */
2293 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2294 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2295 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2297 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2298 sizeof(hwsim_channels_2ghz));
2299 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2300 sizeof(hwsim_channels_5ghz));
2301 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2303 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2304 struct ieee80211_supported_band *sband = &data->bands[band];
2306 case IEEE80211_BAND_2GHZ:
2307 sband->channels = data->channels_2ghz;
2309 ARRAY_SIZE(hwsim_channels_2ghz);
2310 sband->bitrates = data->rates;
2311 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2313 case IEEE80211_BAND_5GHZ:
2314 sband->channels = data->channels_5ghz;
2316 ARRAY_SIZE(hwsim_channels_5ghz);
2317 sband->bitrates = data->rates + 4;
2318 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2324 sband->ht_cap.ht_supported = true;
2325 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2326 IEEE80211_HT_CAP_GRN_FLD |
2327 IEEE80211_HT_CAP_SGI_40 |
2328 IEEE80211_HT_CAP_DSSSCCK40;
2329 sband->ht_cap.ampdu_factor = 0x3;
2330 sband->ht_cap.ampdu_density = 0x6;
2331 memset(&sband->ht_cap.mcs, 0,
2332 sizeof(sband->ht_cap.mcs));
2333 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2334 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2335 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2337 hw->wiphy->bands[band] = sband;
2339 sband->vht_cap.vht_supported = true;
2340 sband->vht_cap.cap =
2341 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2342 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2343 IEEE80211_VHT_CAP_RXLDPC |
2344 IEEE80211_VHT_CAP_SHORT_GI_80 |
2345 IEEE80211_VHT_CAP_SHORT_GI_160 |
2346 IEEE80211_VHT_CAP_TXSTBC |
2347 IEEE80211_VHT_CAP_RXSTBC_1 |
2348 IEEE80211_VHT_CAP_RXSTBC_2 |
2349 IEEE80211_VHT_CAP_RXSTBC_3 |
2350 IEEE80211_VHT_CAP_RXSTBC_4 |
2351 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2352 sband->vht_cap.vht_mcs.rx_mcs_map =
2353 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2354 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2355 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2356 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2357 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2358 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2359 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2360 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2361 sband->vht_cap.vht_mcs.tx_mcs_map =
2362 sband->vht_cap.vht_mcs.rx_mcs_map;
2364 /* By default all radios are belonging to the first group */
2366 mutex_init(&data->mutex);
2368 /* Enable frame retransmissions for lossy channels */
2370 hw->max_rate_tries = 11;
2372 /* Work to be done prior to ieee80211_register_hw() */
2374 case HWSIM_REGTEST_DISABLED:
2375 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2376 case HWSIM_REGTEST_DRIVER_REG_ALL:
2377 case HWSIM_REGTEST_DIFF_COUNTRY:
2379 * Nothing to be done for driver regulatory domain
2380 * hints prior to ieee80211_register_hw()
2383 case HWSIM_REGTEST_WORLD_ROAM:
2385 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2386 wiphy_apply_custom_regulatory(hw->wiphy,
2387 &hwsim_world_regdom_custom_01);
2390 case HWSIM_REGTEST_CUSTOM_WORLD:
2391 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2392 wiphy_apply_custom_regulatory(hw->wiphy,
2393 &hwsim_world_regdom_custom_01);
2395 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2397 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2398 wiphy_apply_custom_regulatory(hw->wiphy,
2399 &hwsim_world_regdom_custom_01);
2400 } else if (i == 1) {
2401 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2402 wiphy_apply_custom_regulatory(hw->wiphy,
2403 &hwsim_world_regdom_custom_02);
2406 case HWSIM_REGTEST_STRICT_ALL:
2407 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2409 case HWSIM_REGTEST_STRICT_FOLLOW:
2410 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2412 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2414 case HWSIM_REGTEST_ALL:
2416 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2417 wiphy_apply_custom_regulatory(hw->wiphy,
2418 &hwsim_world_regdom_custom_01);
2419 } else if (i == 1) {
2420 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2421 wiphy_apply_custom_regulatory(hw->wiphy,
2422 &hwsim_world_regdom_custom_02);
2424 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2430 /* give the regulatory workqueue a chance to run */
2432 schedule_timeout_interruptible(1);
2433 err = ieee80211_register_hw(hw);
2435 printk(KERN_DEBUG "mac80211_hwsim: "
2436 "ieee80211_register_hw failed (%d)\n", err);
2440 /* Work to be done after to ieee80211_register_hw() */
2442 case HWSIM_REGTEST_WORLD_ROAM:
2443 case HWSIM_REGTEST_DISABLED:
2445 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2447 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2449 case HWSIM_REGTEST_DRIVER_REG_ALL:
2450 case HWSIM_REGTEST_STRICT_ALL:
2451 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2453 case HWSIM_REGTEST_DIFF_COUNTRY:
2454 if (i < ARRAY_SIZE(hwsim_alpha2s))
2455 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2457 case HWSIM_REGTEST_CUSTOM_WORLD:
2458 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2460 * Nothing to be done for custom world regulatory
2461 * domains after to ieee80211_register_hw
2464 case HWSIM_REGTEST_STRICT_FOLLOW:
2466 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2468 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2470 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2472 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2474 case HWSIM_REGTEST_ALL:
2476 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2478 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2480 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2486 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2487 hw->wiphy->perm_addr);
2489 data->debugfs = debugfs_create_dir("hwsim",
2490 hw->wiphy->debugfsdir);
2491 data->debugfs_ps = debugfs_create_file("ps", 0666,
2492 data->debugfs, data,
2494 data->debugfs_group = debugfs_create_file("group", 0666,
2495 data->debugfs, data,
2498 tasklet_hrtimer_init(&data->beacon_timer,
2499 mac80211_hwsim_beacon,
2500 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2502 list_add_tail(&data->list, &hwsim_radios);
2505 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2506 if (hwsim_mon == NULL)
2511 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2516 err = register_netdevice(hwsim_mon);
2522 err = hwsim_init_netlink();
2529 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2534 free_netdev(hwsim_mon);
2535 mac80211_hwsim_free();
2539 device_unregister(data->dev);
2541 ieee80211_free_hw(hw);
2543 mac80211_hwsim_free();
2544 failed_unregister_driver:
2545 driver_unregister(&mac80211_hwsim_driver);
2548 module_init(init_mac80211_hwsim);
2550 static void __exit exit_mac80211_hwsim(void)
2552 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2554 hwsim_exit_netlink();
2556 mac80211_hwsim_free();
2557 unregister_netdev(hwsim_mon);
2558 driver_unregister(&mac80211_hwsim_driver);
2560 module_exit(exit_mac80211_hwsim);