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/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include "mac80211_hwsim.h"
34 #define WARN_QUEUE 100
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39 MODULE_LICENSE("GPL");
41 static u32 wmediumd_portid;
43 static int radios = 2;
44 module_param(radios, int, 0444);
45 MODULE_PARM_DESC(radios, "Number of simulated radios");
47 static int channels = 1;
48 module_param(channels, int, 0444);
49 MODULE_PARM_DESC(channels, "Number of concurrent channels");
51 static bool paged_rx = false;
52 module_param(paged_rx, bool, 0644);
53 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
56 * enum hwsim_regtest - the type of regulatory tests we offer
58 * These are the different values you can use for the regtest
59 * module parameter. This is useful to help test world roaming
60 * and the driver regulatory_hint() call and combinations of these.
61 * If you want to do specific alpha2 regulatory domain tests simply
62 * use the userspace regulatory request as that will be respected as
63 * well without the need of this module parameter. This is designed
64 * only for testing the driver regulatory request, world roaming
65 * and all possible combinations.
67 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
68 * this is the default value.
69 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
70 * hint, only one driver regulatory hint will be sent as such the
71 * secondary radios are expected to follow.
72 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
73 * request with all radios reporting the same regulatory domain.
74 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
75 * different regulatory domains requests. Expected behaviour is for
76 * an intersection to occur but each device will still use their
77 * respective regulatory requested domains. Subsequent radios will
78 * use the resulting intersection.
79 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
80 * this by using a custom beacon-capable regulatory domain for the first
81 * radio. All other device world roam.
82 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
83 * domain requests. All radios will adhere to this custom world regulatory
85 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
86 * domain requests. The first radio will adhere to the first custom world
87 * regulatory domain, the second one to the second custom world regulatory
88 * domain. All other devices will world roam.
89 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
90 * settings, only the first radio will send a regulatory domain request
91 * and use strict settings. The rest of the radios are expected to follow.
92 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
93 * settings. All radios will adhere to this.
94 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
95 * domain settings, combined with secondary driver regulatory domain
96 * settings. The first radio will get a strict regulatory domain setting
97 * using the first driver regulatory request and the second radio will use
98 * non-strict settings using the second driver regulatory request. All
99 * other devices should follow the intersection created between the
101 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
102 * at least 6 radios for a complete test. We will test in this order:
103 * 1 - driver custom world regulatory domain
104 * 2 - second custom world regulatory domain
105 * 3 - first driver regulatory domain request
106 * 4 - second driver regulatory domain request
107 * 5 - strict regulatory domain settings using the third driver regulatory
109 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
110 * regulatory requests.
113 HWSIM_REGTEST_DISABLED = 0,
114 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
115 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
116 HWSIM_REGTEST_DIFF_COUNTRY = 3,
117 HWSIM_REGTEST_WORLD_ROAM = 4,
118 HWSIM_REGTEST_CUSTOM_WORLD = 5,
119 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
120 HWSIM_REGTEST_STRICT_FOLLOW = 7,
121 HWSIM_REGTEST_STRICT_ALL = 8,
122 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
123 HWSIM_REGTEST_ALL = 10,
126 /* Set to one of the HWSIM_REGTEST_* values above */
127 static int regtest = HWSIM_REGTEST_DISABLED;
128 module_param(regtest, int, 0444);
129 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
131 static const char *hwsim_alpha2s[] = {
140 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
144 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
145 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
146 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
147 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
151 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
155 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
156 REG_RULE(5725-10, 5850+10, 40, 0, 30,
157 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
161 struct hwsim_vif_priv {
168 #define HWSIM_VIF_MAGIC 0x69537748
170 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
172 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
173 WARN(vp->magic != HWSIM_VIF_MAGIC,
174 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
175 vif, vp->magic, vif->addr, vif->type, vif->p2p);
178 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
180 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
181 vp->magic = HWSIM_VIF_MAGIC;
184 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
190 struct hwsim_sta_priv {
194 #define HWSIM_STA_MAGIC 0x6d537749
196 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
198 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
199 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
202 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
205 sp->magic = HWSIM_STA_MAGIC;
208 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
214 struct hwsim_chanctx_priv {
218 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
220 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
222 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
223 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
226 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 cp->magic = HWSIM_CHANCTX_MAGIC;
232 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 static struct class *hwsim_class;
240 static struct net_device *hwsim_mon; /* global monitor netdev */
242 #define CHAN2G(_freq) { \
243 .band = IEEE80211_BAND_2GHZ, \
244 .center_freq = (_freq), \
245 .hw_value = (_freq), \
249 #define CHAN5G(_freq) { \
250 .band = IEEE80211_BAND_5GHZ, \
251 .center_freq = (_freq), \
252 .hw_value = (_freq), \
256 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
257 CHAN2G(2412), /* Channel 1 */
258 CHAN2G(2417), /* Channel 2 */
259 CHAN2G(2422), /* Channel 3 */
260 CHAN2G(2427), /* Channel 4 */
261 CHAN2G(2432), /* Channel 5 */
262 CHAN2G(2437), /* Channel 6 */
263 CHAN2G(2442), /* Channel 7 */
264 CHAN2G(2447), /* Channel 8 */
265 CHAN2G(2452), /* Channel 9 */
266 CHAN2G(2457), /* Channel 10 */
267 CHAN2G(2462), /* Channel 11 */
268 CHAN2G(2467), /* Channel 12 */
269 CHAN2G(2472), /* Channel 13 */
270 CHAN2G(2484), /* Channel 14 */
273 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
274 CHAN5G(5180), /* Channel 36 */
275 CHAN5G(5200), /* Channel 40 */
276 CHAN5G(5220), /* Channel 44 */
277 CHAN5G(5240), /* Channel 48 */
279 CHAN5G(5260), /* Channel 52 */
280 CHAN5G(5280), /* Channel 56 */
281 CHAN5G(5300), /* Channel 60 */
282 CHAN5G(5320), /* Channel 64 */
284 CHAN5G(5500), /* Channel 100 */
285 CHAN5G(5520), /* Channel 104 */
286 CHAN5G(5540), /* Channel 108 */
287 CHAN5G(5560), /* Channel 112 */
288 CHAN5G(5580), /* Channel 116 */
289 CHAN5G(5600), /* Channel 120 */
290 CHAN5G(5620), /* Channel 124 */
291 CHAN5G(5640), /* Channel 128 */
292 CHAN5G(5660), /* Channel 132 */
293 CHAN5G(5680), /* Channel 136 */
294 CHAN5G(5700), /* Channel 140 */
296 CHAN5G(5745), /* Channel 149 */
297 CHAN5G(5765), /* Channel 153 */
298 CHAN5G(5785), /* Channel 157 */
299 CHAN5G(5805), /* Channel 161 */
300 CHAN5G(5825), /* Channel 165 */
303 static const struct ieee80211_rate hwsim_rates[] = {
305 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
306 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
307 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
318 static spinlock_t hwsim_radio_lock;
319 static struct list_head hwsim_radios;
321 struct mac80211_hwsim_data {
322 struct list_head list;
323 struct ieee80211_hw *hw;
325 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
326 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
327 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
328 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
330 struct mac_address addresses[2];
332 struct ieee80211_channel *tmp_chan;
333 struct delayed_work roc_done;
334 struct delayed_work hw_scan;
335 struct cfg80211_scan_request *hw_scan_request;
336 struct ieee80211_vif *hw_scan_vif;
339 struct ieee80211_channel *channel;
340 u64 beacon_int /* beacon interval in us */;
341 unsigned int rx_filter;
342 bool started, idle, scanning;
344 struct tasklet_hrtimer beacon_timer;
346 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
348 bool ps_poll_pending;
349 struct dentry *debugfs;
350 struct dentry *debugfs_ps;
352 struct sk_buff_head pending; /* packets pending */
354 * Only radios in the same group can communicate together (the
355 * channel has to match too). Each bit represents a group. A
356 * radio can be in more then one group.
359 struct dentry *debugfs_group;
363 /* difference between this hw's clock and the real clock, in usecs */
366 /* absolute beacon transmission time. Used to cover up "tx" delay. */
371 struct hwsim_radiotap_hdr {
372 struct ieee80211_radiotap_header hdr;
380 /* MAC80211_HWSIM netlinf family */
381 static struct genl_family hwsim_genl_family = {
382 .id = GENL_ID_GENERATE,
384 .name = "MAC80211_HWSIM",
386 .maxattr = HWSIM_ATTR_MAX,
389 /* MAC80211_HWSIM netlink policy */
391 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
392 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
393 .len = 6*sizeof(u8) },
394 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
395 .len = 6*sizeof(u8) },
396 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
397 .len = IEEE80211_MAX_DATA_LEN },
398 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
399 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
400 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
401 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
402 .len = IEEE80211_TX_MAX_RATES*sizeof(
403 struct hwsim_tx_rate)},
404 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
407 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
408 struct net_device *dev)
410 /* TODO: allow packet injection */
415 static inline u64 mac80211_hwsim_get_tsf_raw(void)
417 return ktime_to_us(ktime_get_real());
420 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
422 u64 now = mac80211_hwsim_get_tsf_raw();
423 return cpu_to_le64(now + data->tsf_offset);
426 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
427 struct ieee80211_vif *vif)
429 struct mac80211_hwsim_data *data = hw->priv;
430 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
433 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
434 struct ieee80211_vif *vif, u64 tsf)
436 struct mac80211_hwsim_data *data = hw->priv;
437 u64 now = mac80211_hwsim_get_tsf(hw, vif);
438 u32 bcn_int = data->beacon_int;
439 s64 delta = tsf - now;
441 data->tsf_offset += delta;
442 /* adjust after beaconing with new timestamp at old TBTT */
443 data->bcn_delta = do_div(delta, bcn_int);
446 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
447 struct sk_buff *tx_skb,
448 struct ieee80211_channel *chan)
450 struct mac80211_hwsim_data *data = hw->priv;
452 struct hwsim_radiotap_hdr *hdr;
454 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
455 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
457 if (!netif_running(hwsim_mon))
460 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
464 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
465 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
467 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
468 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
469 (1 << IEEE80211_RADIOTAP_RATE) |
470 (1 << IEEE80211_RADIOTAP_TSFT) |
471 (1 << IEEE80211_RADIOTAP_CHANNEL));
472 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
474 hdr->rt_rate = txrate->bitrate / 5;
475 hdr->rt_channel = cpu_to_le16(chan->center_freq);
476 flags = IEEE80211_CHAN_2GHZ;
477 if (txrate->flags & IEEE80211_RATE_ERP_G)
478 flags |= IEEE80211_CHAN_OFDM;
480 flags |= IEEE80211_CHAN_CCK;
481 hdr->rt_chbitmask = cpu_to_le16(flags);
483 skb->dev = hwsim_mon;
484 skb_set_mac_header(skb, 0);
485 skb->ip_summed = CHECKSUM_UNNECESSARY;
486 skb->pkt_type = PACKET_OTHERHOST;
487 skb->protocol = htons(ETH_P_802_2);
488 memset(skb->cb, 0, sizeof(skb->cb));
493 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
497 struct hwsim_radiotap_hdr *hdr;
499 struct ieee80211_hdr *hdr11;
501 if (!netif_running(hwsim_mon))
504 skb = dev_alloc_skb(100);
508 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
509 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
511 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
512 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
513 (1 << IEEE80211_RADIOTAP_CHANNEL));
516 hdr->rt_channel = cpu_to_le16(chan->center_freq);
517 flags = IEEE80211_CHAN_2GHZ;
518 hdr->rt_chbitmask = cpu_to_le16(flags);
520 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
521 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
522 IEEE80211_STYPE_ACK);
523 hdr11->duration_id = cpu_to_le16(0);
524 memcpy(hdr11->addr1, addr, ETH_ALEN);
526 skb->dev = hwsim_mon;
527 skb_set_mac_header(skb, 0);
528 skb->ip_summed = CHECKSUM_UNNECESSARY;
529 skb->pkt_type = PACKET_OTHERHOST;
530 skb->protocol = htons(ETH_P_802_2);
531 memset(skb->cb, 0, sizeof(skb->cb));
536 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
545 /* TODO: accept (some) Beacons by default and other frames only
546 * if pending PS-Poll has been sent */
549 /* Allow unicast frames to own address if there is a pending
551 if (data->ps_poll_pending &&
552 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
554 data->ps_poll_pending = false;
564 struct mac80211_hwsim_addr_match_data {
569 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
570 struct ieee80211_vif *vif)
572 struct mac80211_hwsim_addr_match_data *md = data;
573 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
578 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
581 struct mac80211_hwsim_addr_match_data md;
583 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
588 ieee80211_iterate_active_interfaces_atomic(data->hw,
589 IEEE80211_IFACE_ITER_NORMAL,
590 mac80211_hwsim_addr_iter,
596 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
597 struct sk_buff *my_skb,
601 struct mac80211_hwsim_data *data = hw->priv;
602 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
603 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
605 unsigned int hwsim_flags = 0;
607 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
609 if (data->ps != PS_DISABLED)
610 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
611 /* If the queue contains MAX_QUEUE skb's drop some */
612 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
613 /* Droping until WARN_QUEUE level */
614 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
615 skb_dequeue(&data->pending);
618 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
620 goto nla_put_failure;
622 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
624 if (msg_head == NULL) {
625 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
626 goto nla_put_failure;
629 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
630 sizeof(struct mac_address), data->addresses[1].addr))
631 goto nla_put_failure;
633 /* We get the skb->data */
634 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
635 goto nla_put_failure;
637 /* We get the flags for this transmission, and we translate them to
640 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
641 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
643 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
644 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
646 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
647 goto nla_put_failure;
649 /* We get the tx control (rate and retries) info*/
651 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
652 tx_attempts[i].idx = info->status.rates[i].idx;
653 tx_attempts[i].count = info->status.rates[i].count;
656 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
657 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
659 goto nla_put_failure;
661 /* We create a cookie to identify this skb */
662 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
663 goto nla_put_failure;
665 genlmsg_end(skb, msg_head);
666 genlmsg_unicast(&init_net, skb, dst_portid);
668 /* Enqueue the packet */
669 skb_queue_tail(&data->pending, my_skb);
673 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
676 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
677 struct ieee80211_channel *c2)
682 return c1->center_freq == c2->center_freq;
685 struct tx_iter_data {
686 struct ieee80211_channel *channel;
690 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
691 struct ieee80211_vif *vif)
693 struct tx_iter_data *data = _data;
695 if (!vif->chanctx_conf)
698 if (!hwsim_chans_compat(data->channel,
699 rcu_dereference(vif->chanctx_conf)->def.chan))
702 data->receive = true;
705 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
707 struct ieee80211_channel *chan)
709 struct mac80211_hwsim_data *data = hw->priv, *data2;
711 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
712 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
713 struct ieee80211_rx_status rx_status;
716 memset(&rx_status, 0, sizeof(rx_status));
717 rx_status.flag |= RX_FLAG_MACTIME_START;
718 rx_status.freq = chan->center_freq;
719 rx_status.band = chan->band;
720 rx_status.rate_idx = info->control.rates[0].idx;
721 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
722 rx_status.flag |= RX_FLAG_HT;
723 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
724 rx_status.flag |= RX_FLAG_40MHZ;
725 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
726 rx_status.flag |= RX_FLAG_SHORT_GI;
727 /* TODO: simulate real signal strength (and optional packet loss) */
728 rx_status.signal = data->power_level - 50;
730 if (data->ps != PS_DISABLED)
731 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
733 /* release the skb's source info */
741 * Get absolute mactime here so all HWs RX at the "same time", and
742 * absolute TX time for beacon mactime so the timestamp matches.
743 * Giving beacons a different mactime than non-beacons looks messy, but
744 * it helps the Toffset be exact and a ~10us mactime discrepancy
745 * probably doesn't really matter.
747 if (ieee80211_is_beacon(hdr->frame_control) ||
748 ieee80211_is_probe_resp(hdr->frame_control))
749 now = data->abs_bcn_ts;
751 now = mac80211_hwsim_get_tsf_raw();
753 /* Copy skb to all enabled radios that are on the current frequency */
754 spin_lock(&hwsim_radio_lock);
755 list_for_each_entry(data2, &hwsim_radios, list) {
756 struct sk_buff *nskb;
757 struct tx_iter_data tx_iter_data = {
765 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
766 !hwsim_ps_rx_ok(data2, skb))
769 if (!(data->group & data2->group))
772 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
773 !hwsim_chans_compat(chan, data2->channel)) {
774 ieee80211_iterate_active_interfaces_atomic(
775 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
776 mac80211_hwsim_tx_iter, &tx_iter_data);
777 if (!tx_iter_data.receive)
782 * reserve some space for our vendor and the normal
783 * radiotap header, since we're copying anyway
785 if (skb->len < PAGE_SIZE && paged_rx) {
786 struct page *page = alloc_page(GFP_ATOMIC);
791 nskb = dev_alloc_skb(128);
797 memcpy(page_address(page), skb->data, skb->len);
798 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
800 nskb = skb_copy(skb, GFP_ATOMIC);
805 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
808 rx_status.mactime = now + data2->tsf_offset;
811 * Don't enable this code by default as the OUI 00:00:00
812 * is registered to Xerox so we shouldn't use it here, it
813 * might find its way into pcap files.
814 * Note that this code requires the headroom in the SKB
815 * that was allocated earlier.
817 rx_status.vendor_radiotap_oui[0] = 0x00;
818 rx_status.vendor_radiotap_oui[1] = 0x00;
819 rx_status.vendor_radiotap_oui[2] = 0x00;
820 rx_status.vendor_radiotap_subns = 127;
822 * Radiotap vendor namespaces can (and should) also be
823 * split into fields by using the standard radiotap
824 * presence bitmap mechanism. Use just BIT(0) here for
825 * the presence bitmap.
827 rx_status.vendor_radiotap_bitmap = BIT(0);
828 /* We have 8 bytes of (dummy) data */
829 rx_status.vendor_radiotap_len = 8;
830 /* For testing, also require it to be aligned */
831 rx_status.vendor_radiotap_align = 8;
833 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
836 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
837 ieee80211_rx_irqsafe(data2->hw, nskb);
839 spin_unlock(&hwsim_radio_lock);
844 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
845 struct ieee80211_tx_control *control,
848 struct mac80211_hwsim_data *data = hw->priv;
849 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
850 struct ieee80211_chanctx_conf *chanctx_conf;
851 struct ieee80211_channel *channel;
855 if (WARN_ON(skb->len < 10)) {
856 /* Should not happen; just a sanity check for addr1 use */
862 channel = data->channel;
863 } else if (txi->hw_queue == 4) {
864 channel = data->tmp_chan;
866 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
868 channel = chanctx_conf->def.chan;
873 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
878 if (data->idle && !data->tmp_chan) {
879 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
884 if (txi->control.vif)
885 hwsim_check_magic(txi->control.vif);
887 hwsim_check_sta_magic(control->sta);
889 txi->rate_driver_data[0] = channel;
891 mac80211_hwsim_monitor_rx(hw, skb, channel);
893 /* wmediumd mode check */
894 _portid = ACCESS_ONCE(wmediumd_portid);
897 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
899 /* NO wmediumd detected, perfect medium simulation */
900 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
902 if (ack && skb->len >= 16) {
903 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
904 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
907 ieee80211_tx_info_clear_status(txi);
909 /* frame was transmitted at most favorable rate at first attempt */
910 txi->control.rates[0].count = 1;
911 txi->control.rates[1].idx = -1;
913 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
914 txi->flags |= IEEE80211_TX_STAT_ACK;
915 ieee80211_tx_status_irqsafe(hw, skb);
919 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
921 struct mac80211_hwsim_data *data = hw->priv;
922 wiphy_debug(hw->wiphy, "%s\n", __func__);
923 data->started = true;
928 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
930 struct mac80211_hwsim_data *data = hw->priv;
931 data->started = false;
932 tasklet_hrtimer_cancel(&data->beacon_timer);
933 wiphy_debug(hw->wiphy, "%s\n", __func__);
937 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
938 struct ieee80211_vif *vif)
940 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
941 __func__, ieee80211_vif_type_p2p(vif),
943 hwsim_set_magic(vif);
946 vif->hw_queue[IEEE80211_AC_VO] = 0;
947 vif->hw_queue[IEEE80211_AC_VI] = 1;
948 vif->hw_queue[IEEE80211_AC_BE] = 2;
949 vif->hw_queue[IEEE80211_AC_BK] = 3;
955 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
956 struct ieee80211_vif *vif,
957 enum nl80211_iftype newtype,
960 newtype = ieee80211_iftype_p2p(newtype, newp2p);
961 wiphy_debug(hw->wiphy,
962 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
963 __func__, ieee80211_vif_type_p2p(vif),
965 hwsim_check_magic(vif);
970 static void mac80211_hwsim_remove_interface(
971 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
973 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
974 __func__, ieee80211_vif_type_p2p(vif),
976 hwsim_check_magic(vif);
977 hwsim_clear_magic(vif);
980 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
982 struct ieee80211_channel *chan)
984 u32 _pid = ACCESS_ONCE(wmediumd_portid);
986 mac80211_hwsim_monitor_rx(hw, skb, chan);
989 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
991 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
995 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
996 struct ieee80211_vif *vif)
998 struct mac80211_hwsim_data *data = arg;
999 struct ieee80211_hw *hw = data->hw;
1000 struct ieee80211_tx_info *info;
1001 struct ieee80211_rate *txrate;
1002 struct ieee80211_mgmt *mgmt;
1003 struct sk_buff *skb;
1005 hwsim_check_magic(vif);
1007 if (vif->type != NL80211_IFTYPE_AP &&
1008 vif->type != NL80211_IFTYPE_MESH_POINT &&
1009 vif->type != NL80211_IFTYPE_ADHOC)
1012 skb = ieee80211_beacon_get(hw, vif);
1015 info = IEEE80211_SKB_CB(skb);
1016 txrate = ieee80211_get_tx_rate(hw, info);
1018 mgmt = (struct ieee80211_mgmt *) skb->data;
1019 /* fake header transmission time */
1020 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1021 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1023 24 * 8 * 10 / txrate->bitrate);
1025 mac80211_hwsim_tx_frame(hw, skb,
1026 rcu_dereference(vif->chanctx_conf)->def.chan);
1029 static enum hrtimer_restart
1030 mac80211_hwsim_beacon(struct hrtimer *timer)
1032 struct mac80211_hwsim_data *data =
1033 container_of(timer, struct mac80211_hwsim_data,
1034 beacon_timer.timer);
1035 struct ieee80211_hw *hw = data->hw;
1036 u64 bcn_int = data->beacon_int;
1042 ieee80211_iterate_active_interfaces_atomic(
1043 hw, IEEE80211_IFACE_ITER_NORMAL,
1044 mac80211_hwsim_beacon_tx, data);
1046 /* beacon at new TBTT + beacon interval */
1047 if (data->bcn_delta) {
1048 bcn_int -= data->bcn_delta;
1049 data->bcn_delta = 0;
1052 next_bcn = ktime_add(hrtimer_get_expires(timer),
1053 ns_to_ktime(bcn_int * 1000));
1054 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1056 return HRTIMER_NORESTART;
1059 static const char *hwsim_chantypes[] = {
1060 [NL80211_CHAN_NO_HT] = "noht",
1061 [NL80211_CHAN_HT20] = "ht20",
1062 [NL80211_CHAN_HT40MINUS] = "ht40-",
1063 [NL80211_CHAN_HT40PLUS] = "ht40+",
1066 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1068 struct mac80211_hwsim_data *data = hw->priv;
1069 struct ieee80211_conf *conf = &hw->conf;
1070 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1071 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1072 [IEEE80211_SMPS_OFF] = "off",
1073 [IEEE80211_SMPS_STATIC] = "static",
1074 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1077 wiphy_debug(hw->wiphy,
1078 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1080 conf->channel ? conf->channel->center_freq : 0,
1081 hwsim_chantypes[conf->channel_type],
1082 !!(conf->flags & IEEE80211_CONF_IDLE),
1083 !!(conf->flags & IEEE80211_CONF_PS),
1084 smps_modes[conf->smps_mode]);
1086 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1088 data->channel = conf->channel;
1090 WARN_ON(data->channel && channels > 1);
1092 data->power_level = conf->power_level;
1093 if (!data->started || !data->beacon_int)
1094 tasklet_hrtimer_cancel(&data->beacon_timer);
1095 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1096 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1097 u32 bcn_int = data->beacon_int;
1098 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1100 tasklet_hrtimer_start(&data->beacon_timer,
1101 ns_to_ktime(until_tbtt * 1000),
1109 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1110 unsigned int changed_flags,
1111 unsigned int *total_flags,u64 multicast)
1113 struct mac80211_hwsim_data *data = hw->priv;
1115 wiphy_debug(hw->wiphy, "%s\n", __func__);
1117 data->rx_filter = 0;
1118 if (*total_flags & FIF_PROMISC_IN_BSS)
1119 data->rx_filter |= FIF_PROMISC_IN_BSS;
1120 if (*total_flags & FIF_ALLMULTI)
1121 data->rx_filter |= FIF_ALLMULTI;
1123 *total_flags = data->rx_filter;
1126 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1127 struct ieee80211_vif *vif,
1128 struct ieee80211_bss_conf *info,
1131 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1132 struct mac80211_hwsim_data *data = hw->priv;
1134 hwsim_check_magic(vif);
1136 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
1138 if (changed & BSS_CHANGED_BSSID) {
1139 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1140 __func__, info->bssid);
1141 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1144 if (changed & BSS_CHANGED_ASSOC) {
1145 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1146 info->assoc, info->aid);
1147 vp->assoc = info->assoc;
1148 vp->aid = info->aid;
1151 if (changed & BSS_CHANGED_BEACON_INT) {
1152 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1153 data->beacon_int = info->beacon_int * 1024;
1156 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1157 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1158 if (data->started &&
1159 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1160 info->enable_beacon) {
1161 u64 tsf, until_tbtt;
1163 if (WARN_ON(!data->beacon_int))
1164 data->beacon_int = 1000 * 1024;
1165 tsf = mac80211_hwsim_get_tsf(hw, vif);
1166 bcn_int = data->beacon_int;
1167 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1168 tasklet_hrtimer_start(&data->beacon_timer,
1169 ns_to_ktime(until_tbtt * 1000),
1171 } else if (!info->enable_beacon)
1172 tasklet_hrtimer_cancel(&data->beacon_timer);
1175 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1176 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1177 info->use_cts_prot);
1180 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1181 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1182 info->use_short_preamble);
1185 if (changed & BSS_CHANGED_ERP_SLOT) {
1186 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1189 if (changed & BSS_CHANGED_HT) {
1190 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1191 info->ht_operation_mode);
1194 if (changed & BSS_CHANGED_BASIC_RATES) {
1195 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1196 (unsigned long long) info->basic_rates);
1199 if (changed & BSS_CHANGED_TXPOWER)
1200 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1203 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1204 struct ieee80211_vif *vif,
1205 struct ieee80211_sta *sta)
1207 hwsim_check_magic(vif);
1208 hwsim_set_sta_magic(sta);
1213 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1214 struct ieee80211_vif *vif,
1215 struct ieee80211_sta *sta)
1217 hwsim_check_magic(vif);
1218 hwsim_clear_sta_magic(sta);
1223 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1224 struct ieee80211_vif *vif,
1225 enum sta_notify_cmd cmd,
1226 struct ieee80211_sta *sta)
1228 hwsim_check_magic(vif);
1231 case STA_NOTIFY_SLEEP:
1232 case STA_NOTIFY_AWAKE:
1233 /* TODO: make good use of these flags */
1236 WARN(1, "Invalid sta notify: %d\n", cmd);
1241 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1242 struct ieee80211_sta *sta,
1245 hwsim_check_sta_magic(sta);
1249 static int mac80211_hwsim_conf_tx(
1250 struct ieee80211_hw *hw,
1251 struct ieee80211_vif *vif, u16 queue,
1252 const struct ieee80211_tx_queue_params *params)
1254 wiphy_debug(hw->wiphy,
1255 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1257 params->txop, params->cw_min,
1258 params->cw_max, params->aifs);
1262 static int mac80211_hwsim_get_survey(
1263 struct ieee80211_hw *hw, int idx,
1264 struct survey_info *survey)
1266 struct ieee80211_conf *conf = &hw->conf;
1268 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1273 /* Current channel */
1274 survey->channel = conf->channel;
1277 * Magically conjured noise level --- this is only ok for simulated hardware.
1279 * A real driver which cannot determine the real channel noise MUST NOT
1280 * report any noise, especially not a magically conjured one :-)
1282 survey->filled = SURVEY_INFO_NOISE_DBM;
1283 survey->noise = -92;
1288 #ifdef CONFIG_NL80211_TESTMODE
1290 * This section contains example code for using netlink
1291 * attributes with the testmode command in nl80211.
1294 /* These enums need to be kept in sync with userspace */
1295 enum hwsim_testmode_attr {
1296 __HWSIM_TM_ATTR_INVALID = 0,
1297 HWSIM_TM_ATTR_CMD = 1,
1298 HWSIM_TM_ATTR_PS = 2,
1301 __HWSIM_TM_ATTR_AFTER_LAST,
1302 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1305 enum hwsim_testmode_cmd {
1306 HWSIM_TM_CMD_SET_PS = 0,
1307 HWSIM_TM_CMD_GET_PS = 1,
1308 HWSIM_TM_CMD_STOP_QUEUES = 2,
1309 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1312 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1313 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1314 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1317 static int hwsim_fops_ps_write(void *dat, u64 val);
1319 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1320 void *data, int len)
1322 struct mac80211_hwsim_data *hwsim = hw->priv;
1323 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1324 struct sk_buff *skb;
1327 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1328 hwsim_testmode_policy);
1332 if (!tb[HWSIM_TM_ATTR_CMD])
1335 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1336 case HWSIM_TM_CMD_SET_PS:
1337 if (!tb[HWSIM_TM_ATTR_PS])
1339 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1340 return hwsim_fops_ps_write(hwsim, ps);
1341 case HWSIM_TM_CMD_GET_PS:
1342 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1343 nla_total_size(sizeof(u32)));
1346 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1347 goto nla_put_failure;
1348 return cfg80211_testmode_reply(skb);
1349 case HWSIM_TM_CMD_STOP_QUEUES:
1350 ieee80211_stop_queues(hw);
1352 case HWSIM_TM_CMD_WAKE_QUEUES:
1353 ieee80211_wake_queues(hw);
1365 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1366 struct ieee80211_vif *vif,
1367 enum ieee80211_ampdu_mlme_action action,
1368 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1372 case IEEE80211_AMPDU_TX_START:
1373 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1375 case IEEE80211_AMPDU_TX_STOP_CONT:
1376 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1377 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1378 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1380 case IEEE80211_AMPDU_TX_OPERATIONAL:
1382 case IEEE80211_AMPDU_RX_START:
1383 case IEEE80211_AMPDU_RX_STOP:
1392 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1394 /* Not implemented, queues only on kernel side */
1397 static void hw_scan_work(struct work_struct *work)
1399 struct mac80211_hwsim_data *hwsim =
1400 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1401 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1404 mutex_lock(&hwsim->mutex);
1405 if (hwsim->scan_chan_idx >= req->n_channels) {
1406 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1407 ieee80211_scan_completed(hwsim->hw, false);
1408 hwsim->hw_scan_request = NULL;
1409 hwsim->hw_scan_vif = NULL;
1410 hwsim->tmp_chan = NULL;
1411 mutex_unlock(&hwsim->mutex);
1415 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1416 req->channels[hwsim->scan_chan_idx]->center_freq);
1418 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1419 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1425 for (i = 0; i < req->n_ssids; i++) {
1426 struct sk_buff *probe;
1428 probe = ieee80211_probereq_get(hwsim->hw,
1431 req->ssids[i].ssid_len,
1437 memcpy(skb_put(probe, req->ie_len), req->ie,
1441 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1446 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1447 msecs_to_jiffies(dwell));
1448 hwsim->scan_chan_idx++;
1449 mutex_unlock(&hwsim->mutex);
1452 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1453 struct ieee80211_vif *vif,
1454 struct cfg80211_scan_request *req)
1456 struct mac80211_hwsim_data *hwsim = hw->priv;
1458 mutex_lock(&hwsim->mutex);
1459 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1460 mutex_unlock(&hwsim->mutex);
1463 hwsim->hw_scan_request = req;
1464 hwsim->hw_scan_vif = vif;
1465 hwsim->scan_chan_idx = 0;
1466 mutex_unlock(&hwsim->mutex);
1468 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1470 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1475 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1476 struct ieee80211_vif *vif)
1478 struct mac80211_hwsim_data *hwsim = hw->priv;
1480 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1482 cancel_delayed_work_sync(&hwsim->hw_scan);
1484 mutex_lock(&hwsim->mutex);
1485 ieee80211_scan_completed(hwsim->hw, true);
1486 hwsim->tmp_chan = NULL;
1487 hwsim->hw_scan_request = NULL;
1488 hwsim->hw_scan_vif = NULL;
1489 mutex_unlock(&hwsim->mutex);
1492 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1494 struct mac80211_hwsim_data *hwsim = hw->priv;
1496 mutex_lock(&hwsim->mutex);
1498 if (hwsim->scanning) {
1499 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1503 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1504 hwsim->scanning = true;
1507 mutex_unlock(&hwsim->mutex);
1510 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1512 struct mac80211_hwsim_data *hwsim = hw->priv;
1514 mutex_lock(&hwsim->mutex);
1516 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1517 hwsim->scanning = false;
1519 mutex_unlock(&hwsim->mutex);
1522 static void hw_roc_done(struct work_struct *work)
1524 struct mac80211_hwsim_data *hwsim =
1525 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1527 mutex_lock(&hwsim->mutex);
1528 ieee80211_remain_on_channel_expired(hwsim->hw);
1529 hwsim->tmp_chan = NULL;
1530 mutex_unlock(&hwsim->mutex);
1532 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1535 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1536 struct ieee80211_vif *vif,
1537 struct ieee80211_channel *chan,
1539 enum ieee80211_roc_type type)
1541 struct mac80211_hwsim_data *hwsim = hw->priv;
1543 mutex_lock(&hwsim->mutex);
1544 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1545 mutex_unlock(&hwsim->mutex);
1549 hwsim->tmp_chan = chan;
1550 mutex_unlock(&hwsim->mutex);
1552 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1553 chan->center_freq, duration);
1555 ieee80211_ready_on_channel(hw);
1557 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1558 msecs_to_jiffies(duration));
1562 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1564 struct mac80211_hwsim_data *hwsim = hw->priv;
1566 cancel_delayed_work_sync(&hwsim->roc_done);
1568 mutex_lock(&hwsim->mutex);
1569 hwsim->tmp_chan = NULL;
1570 mutex_unlock(&hwsim->mutex);
1572 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1577 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1578 struct ieee80211_chanctx_conf *ctx)
1580 hwsim_set_chanctx_magic(ctx);
1581 wiphy_debug(hw->wiphy,
1582 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1583 ctx->def.chan->center_freq, ctx->def.width,
1584 ctx->def.center_freq1, ctx->def.center_freq2);
1588 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1589 struct ieee80211_chanctx_conf *ctx)
1591 wiphy_debug(hw->wiphy,
1592 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1593 ctx->def.chan->center_freq, ctx->def.width,
1594 ctx->def.center_freq1, ctx->def.center_freq2);
1595 hwsim_check_chanctx_magic(ctx);
1596 hwsim_clear_chanctx_magic(ctx);
1599 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1600 struct ieee80211_chanctx_conf *ctx,
1603 hwsim_check_chanctx_magic(ctx);
1604 wiphy_debug(hw->wiphy,
1605 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1606 ctx->def.chan->center_freq, ctx->def.width,
1607 ctx->def.center_freq1, ctx->def.center_freq2);
1610 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1611 struct ieee80211_vif *vif,
1612 struct ieee80211_chanctx_conf *ctx)
1614 hwsim_check_magic(vif);
1615 hwsim_check_chanctx_magic(ctx);
1620 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1621 struct ieee80211_vif *vif,
1622 struct ieee80211_chanctx_conf *ctx)
1624 hwsim_check_magic(vif);
1625 hwsim_check_chanctx_magic(ctx);
1628 static struct ieee80211_ops mac80211_hwsim_ops =
1630 .tx = mac80211_hwsim_tx,
1631 .start = mac80211_hwsim_start,
1632 .stop = mac80211_hwsim_stop,
1633 .add_interface = mac80211_hwsim_add_interface,
1634 .change_interface = mac80211_hwsim_change_interface,
1635 .remove_interface = mac80211_hwsim_remove_interface,
1636 .config = mac80211_hwsim_config,
1637 .configure_filter = mac80211_hwsim_configure_filter,
1638 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1639 .sta_add = mac80211_hwsim_sta_add,
1640 .sta_remove = mac80211_hwsim_sta_remove,
1641 .sta_notify = mac80211_hwsim_sta_notify,
1642 .set_tim = mac80211_hwsim_set_tim,
1643 .conf_tx = mac80211_hwsim_conf_tx,
1644 .get_survey = mac80211_hwsim_get_survey,
1645 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1646 .ampdu_action = mac80211_hwsim_ampdu_action,
1647 .sw_scan_start = mac80211_hwsim_sw_scan,
1648 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1649 .flush = mac80211_hwsim_flush,
1650 .get_tsf = mac80211_hwsim_get_tsf,
1651 .set_tsf = mac80211_hwsim_set_tsf,
1655 static void mac80211_hwsim_free(void)
1657 struct list_head tmplist, *i, *tmp;
1658 struct mac80211_hwsim_data *data, *tmpdata;
1660 INIT_LIST_HEAD(&tmplist);
1662 spin_lock_bh(&hwsim_radio_lock);
1663 list_for_each_safe(i, tmp, &hwsim_radios)
1664 list_move(i, &tmplist);
1665 spin_unlock_bh(&hwsim_radio_lock);
1667 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1668 debugfs_remove(data->debugfs_group);
1669 debugfs_remove(data->debugfs_ps);
1670 debugfs_remove(data->debugfs);
1671 ieee80211_unregister_hw(data->hw);
1672 device_unregister(data->dev);
1673 ieee80211_free_hw(data->hw);
1675 class_destroy(hwsim_class);
1679 static struct device_driver mac80211_hwsim_driver = {
1680 .name = "mac80211_hwsim"
1683 static const struct net_device_ops hwsim_netdev_ops = {
1684 .ndo_start_xmit = hwsim_mon_xmit,
1685 .ndo_change_mtu = eth_change_mtu,
1686 .ndo_set_mac_address = eth_mac_addr,
1687 .ndo_validate_addr = eth_validate_addr,
1690 static void hwsim_mon_setup(struct net_device *dev)
1692 dev->netdev_ops = &hwsim_netdev_ops;
1693 dev->destructor = free_netdev;
1695 dev->tx_queue_len = 0;
1696 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1697 memset(dev->dev_addr, 0, ETH_ALEN);
1698 dev->dev_addr[0] = 0x12;
1702 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1704 struct mac80211_hwsim_data *data = dat;
1705 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1706 struct sk_buff *skb;
1707 struct ieee80211_pspoll *pspoll;
1712 wiphy_debug(data->hw->wiphy,
1713 "%s: send PS-Poll to %pM for aid %d\n",
1714 __func__, vp->bssid, vp->aid);
1716 skb = dev_alloc_skb(sizeof(*pspoll));
1719 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1720 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1721 IEEE80211_STYPE_PSPOLL |
1723 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1724 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1725 memcpy(pspoll->ta, mac, ETH_ALEN);
1728 mac80211_hwsim_tx_frame(data->hw, skb,
1729 rcu_dereference(vif->chanctx_conf)->def.chan);
1733 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1734 struct ieee80211_vif *vif, int ps)
1736 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1737 struct sk_buff *skb;
1738 struct ieee80211_hdr *hdr;
1743 wiphy_debug(data->hw->wiphy,
1744 "%s: send data::nullfunc to %pM ps=%d\n",
1745 __func__, vp->bssid, ps);
1747 skb = dev_alloc_skb(sizeof(*hdr));
1750 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1751 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1752 IEEE80211_STYPE_NULLFUNC |
1753 (ps ? IEEE80211_FCTL_PM : 0));
1754 hdr->duration_id = cpu_to_le16(0);
1755 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1756 memcpy(hdr->addr2, mac, ETH_ALEN);
1757 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1760 mac80211_hwsim_tx_frame(data->hw, skb,
1761 rcu_dereference(vif->chanctx_conf)->def.chan);
1766 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1767 struct ieee80211_vif *vif)
1769 struct mac80211_hwsim_data *data = dat;
1770 hwsim_send_nullfunc(data, mac, vif, 1);
1774 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1775 struct ieee80211_vif *vif)
1777 struct mac80211_hwsim_data *data = dat;
1778 hwsim_send_nullfunc(data, mac, vif, 0);
1782 static int hwsim_fops_ps_read(void *dat, u64 *val)
1784 struct mac80211_hwsim_data *data = dat;
1789 static int hwsim_fops_ps_write(void *dat, u64 val)
1791 struct mac80211_hwsim_data *data = dat;
1792 enum ps_mode old_ps;
1794 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1795 val != PS_MANUAL_POLL)
1801 if (val == PS_MANUAL_POLL) {
1802 ieee80211_iterate_active_interfaces(data->hw,
1803 IEEE80211_IFACE_ITER_NORMAL,
1804 hwsim_send_ps_poll, data);
1805 data->ps_poll_pending = true;
1806 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1807 ieee80211_iterate_active_interfaces(data->hw,
1808 IEEE80211_IFACE_ITER_NORMAL,
1809 hwsim_send_nullfunc_ps,
1811 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1812 ieee80211_iterate_active_interfaces(data->hw,
1813 IEEE80211_IFACE_ITER_NORMAL,
1814 hwsim_send_nullfunc_no_ps,
1821 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1825 static int hwsim_fops_group_read(void *dat, u64 *val)
1827 struct mac80211_hwsim_data *data = dat;
1832 static int hwsim_fops_group_write(void *dat, u64 val)
1834 struct mac80211_hwsim_data *data = dat;
1839 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1840 hwsim_fops_group_read, hwsim_fops_group_write,
1843 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1844 struct mac_address *addr)
1846 struct mac80211_hwsim_data *data;
1847 bool _found = false;
1849 spin_lock_bh(&hwsim_radio_lock);
1850 list_for_each_entry(data, &hwsim_radios, list) {
1851 if (memcmp(data->addresses[1].addr, addr,
1852 sizeof(struct mac_address)) == 0) {
1857 spin_unlock_bh(&hwsim_radio_lock);
1865 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1866 struct genl_info *info)
1869 struct ieee80211_hdr *hdr;
1870 struct mac80211_hwsim_data *data2;
1871 struct ieee80211_tx_info *txi;
1872 struct hwsim_tx_rate *tx_attempts;
1873 unsigned long ret_skb_ptr;
1874 struct sk_buff *skb, *tmp;
1875 struct mac_address *src;
1876 unsigned int hwsim_flags;
1881 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1882 !info->attrs[HWSIM_ATTR_FLAGS] ||
1883 !info->attrs[HWSIM_ATTR_COOKIE] ||
1884 !info->attrs[HWSIM_ATTR_TX_INFO])
1887 src = (struct mac_address *)nla_data(
1888 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1889 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1891 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1893 data2 = get_hwsim_data_ref_from_addr(src);
1898 /* look for the skb matching the cookie passed back from user */
1899 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1900 if ((unsigned long)skb == ret_skb_ptr) {
1901 skb_unlink(skb, &data2->pending);
1911 /* Tx info received because the frame was broadcasted on user space,
1912 so we get all the necessary info: tx attempts and skb control buff */
1914 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1915 info->attrs[HWSIM_ATTR_TX_INFO]);
1917 /* now send back TX status */
1918 txi = IEEE80211_SKB_CB(skb);
1920 ieee80211_tx_info_clear_status(txi);
1922 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1923 txi->status.rates[i].idx = tx_attempts[i].idx;
1924 txi->status.rates[i].count = tx_attempts[i].count;
1925 /*txi->status.rates[i].flags = 0;*/
1928 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1930 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1931 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1932 if (skb->len >= 16) {
1933 hdr = (struct ieee80211_hdr *) skb->data;
1934 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1937 txi->flags |= IEEE80211_TX_STAT_ACK;
1939 ieee80211_tx_status_irqsafe(data2->hw, skb);
1946 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1947 struct genl_info *info)
1950 struct mac80211_hwsim_data *data2;
1951 struct ieee80211_rx_status rx_status;
1952 struct mac_address *dst;
1955 struct sk_buff *skb = NULL;
1957 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1958 !info->attrs[HWSIM_ATTR_FRAME] ||
1959 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1960 !info->attrs[HWSIM_ATTR_SIGNAL])
1963 dst = (struct mac_address *)nla_data(
1964 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1966 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1967 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1969 /* Allocate new skb here */
1970 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1974 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1976 memcpy(skb_put(skb, frame_data_len), frame_data,
1981 data2 = get_hwsim_data_ref_from_addr(dst);
1986 /* check if radio is configured properly */
1988 if (data2->idle || !data2->started)
1991 /*A frame is received from user space*/
1992 memset(&rx_status, 0, sizeof(rx_status));
1993 rx_status.freq = data2->channel->center_freq;
1994 rx_status.band = data2->channel->band;
1995 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1996 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1998 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1999 ieee80211_rx_irqsafe(data2->hw, skb);
2003 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2010 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2011 struct genl_info *info)
2016 wmediumd_portid = info->snd_portid;
2018 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2019 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2023 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2027 /* Generic Netlink operations array */
2028 static struct genl_ops hwsim_ops[] = {
2030 .cmd = HWSIM_CMD_REGISTER,
2031 .policy = hwsim_genl_policy,
2032 .doit = hwsim_register_received_nl,
2033 .flags = GENL_ADMIN_PERM,
2036 .cmd = HWSIM_CMD_FRAME,
2037 .policy = hwsim_genl_policy,
2038 .doit = hwsim_cloned_frame_received_nl,
2041 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2042 .policy = hwsim_genl_policy,
2043 .doit = hwsim_tx_info_frame_received_nl,
2047 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2048 unsigned long state,
2051 struct netlink_notify *notify = _notify;
2053 if (state != NETLINK_URELEASE)
2056 if (notify->portid == wmediumd_portid) {
2057 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2058 " socket, switching to perfect channel medium\n");
2059 wmediumd_portid = 0;
2065 static struct notifier_block hwsim_netlink_notifier = {
2066 .notifier_call = mac80211_hwsim_netlink_notify,
2069 static int hwsim_init_netlink(void)
2073 /* userspace test API hasn't been adjusted for multi-channel */
2077 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2079 rc = genl_register_family_with_ops(&hwsim_genl_family,
2080 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2084 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2091 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2095 static void hwsim_exit_netlink(void)
2099 /* userspace test API hasn't been adjusted for multi-channel */
2103 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2104 /* unregister the notifier */
2105 netlink_unregister_notifier(&hwsim_netlink_notifier);
2106 /* unregister the family */
2107 ret = genl_unregister_family(&hwsim_genl_family);
2109 printk(KERN_DEBUG "mac80211_hwsim: "
2110 "unregister family %i\n", ret);
2113 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2114 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2115 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2116 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2117 #ifdef CONFIG_MAC80211_MESH
2118 BIT(NL80211_IFTYPE_MESH_POINT) |
2120 BIT(NL80211_IFTYPE_AP) |
2121 BIT(NL80211_IFTYPE_P2P_GO) },
2122 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2125 static struct ieee80211_iface_combination hwsim_if_comb = {
2126 .limits = hwsim_if_limits,
2127 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2128 .max_interfaces = 2048,
2129 .num_different_channels = 1,
2132 static int __init init_mac80211_hwsim(void)
2136 struct mac80211_hwsim_data *data;
2137 struct ieee80211_hw *hw;
2138 enum ieee80211_band band;
2140 if (radios < 1 || radios > 100)
2147 hwsim_if_comb.num_different_channels = channels;
2148 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2149 mac80211_hwsim_ops.cancel_hw_scan =
2150 mac80211_hwsim_cancel_hw_scan;
2151 mac80211_hwsim_ops.sw_scan_start = NULL;
2152 mac80211_hwsim_ops.sw_scan_complete = NULL;
2153 mac80211_hwsim_ops.remain_on_channel =
2155 mac80211_hwsim_ops.cancel_remain_on_channel =
2156 mac80211_hwsim_croc;
2157 mac80211_hwsim_ops.add_chanctx =
2158 mac80211_hwsim_add_chanctx;
2159 mac80211_hwsim_ops.remove_chanctx =
2160 mac80211_hwsim_remove_chanctx;
2161 mac80211_hwsim_ops.change_chanctx =
2162 mac80211_hwsim_change_chanctx;
2163 mac80211_hwsim_ops.assign_vif_chanctx =
2164 mac80211_hwsim_assign_vif_chanctx;
2165 mac80211_hwsim_ops.unassign_vif_chanctx =
2166 mac80211_hwsim_unassign_vif_chanctx;
2169 spin_lock_init(&hwsim_radio_lock);
2170 INIT_LIST_HEAD(&hwsim_radios);
2172 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2173 if (IS_ERR(hwsim_class))
2174 return PTR_ERR(hwsim_class);
2176 memset(addr, 0, ETH_ALEN);
2179 for (i = 0; i < radios; i++) {
2180 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2182 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2184 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2192 data->dev = device_create(hwsim_class, NULL, 0, hw,
2194 if (IS_ERR(data->dev)) {
2196 "mac80211_hwsim: device_create "
2197 "failed (%ld)\n", PTR_ERR(data->dev));
2199 goto failed_drvdata;
2201 data->dev->driver = &mac80211_hwsim_driver;
2202 skb_queue_head_init(&data->pending);
2204 SET_IEEE80211_DEV(hw, data->dev);
2207 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2208 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2209 data->addresses[1].addr[0] |= 0x40;
2210 hw->wiphy->n_addresses = 2;
2211 hw->wiphy->addresses = data->addresses;
2213 hw->wiphy->iface_combinations = &hwsim_if_comb;
2214 hw->wiphy->n_iface_combinations = 1;
2217 hw->wiphy->max_scan_ssids = 255;
2218 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2219 hw->wiphy->max_remain_on_channel_duration = 1000;
2222 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2223 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2225 hw->channel_change_time = 1;
2227 hw->offchannel_tx_hw_queue = 4;
2228 hw->wiphy->interface_modes =
2229 BIT(NL80211_IFTYPE_STATION) |
2230 BIT(NL80211_IFTYPE_AP) |
2231 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2232 BIT(NL80211_IFTYPE_P2P_GO) |
2233 BIT(NL80211_IFTYPE_ADHOC) |
2234 BIT(NL80211_IFTYPE_MESH_POINT) |
2235 BIT(NL80211_IFTYPE_P2P_DEVICE);
2237 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2238 IEEE80211_HW_SIGNAL_DBM |
2239 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2240 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2241 IEEE80211_HW_AMPDU_AGGREGATION |
2242 IEEE80211_HW_WANT_MONITOR_VIF |
2243 IEEE80211_HW_QUEUE_CONTROL;
2245 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2246 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2248 /* ask mac80211 to reserve space for magic */
2249 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2250 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2251 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2253 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2254 sizeof(hwsim_channels_2ghz));
2255 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2256 sizeof(hwsim_channels_5ghz));
2257 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2259 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2260 struct ieee80211_supported_band *sband = &data->bands[band];
2262 case IEEE80211_BAND_2GHZ:
2263 sband->channels = data->channels_2ghz;
2265 ARRAY_SIZE(hwsim_channels_2ghz);
2266 sband->bitrates = data->rates;
2267 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2269 case IEEE80211_BAND_5GHZ:
2270 sband->channels = data->channels_5ghz;
2272 ARRAY_SIZE(hwsim_channels_5ghz);
2273 sband->bitrates = data->rates + 4;
2274 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2280 sband->ht_cap.ht_supported = true;
2281 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2282 IEEE80211_HT_CAP_GRN_FLD |
2283 IEEE80211_HT_CAP_SGI_40 |
2284 IEEE80211_HT_CAP_DSSSCCK40;
2285 sband->ht_cap.ampdu_factor = 0x3;
2286 sband->ht_cap.ampdu_density = 0x6;
2287 memset(&sband->ht_cap.mcs, 0,
2288 sizeof(sband->ht_cap.mcs));
2289 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2290 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2291 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2293 hw->wiphy->bands[band] = sband;
2298 sband->vht_cap.vht_supported = true;
2299 sband->vht_cap.cap =
2300 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2301 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2302 IEEE80211_VHT_CAP_RXLDPC |
2303 IEEE80211_VHT_CAP_SHORT_GI_80 |
2304 IEEE80211_VHT_CAP_SHORT_GI_160 |
2305 IEEE80211_VHT_CAP_TXSTBC |
2306 IEEE80211_VHT_CAP_RXSTBC_1 |
2307 IEEE80211_VHT_CAP_RXSTBC_2 |
2308 IEEE80211_VHT_CAP_RXSTBC_3 |
2309 IEEE80211_VHT_CAP_RXSTBC_4 |
2310 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2311 sband->vht_cap.vht_mcs.rx_mcs_map =
2312 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2313 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2314 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2315 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2316 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2317 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2318 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2319 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2320 sband->vht_cap.vht_mcs.tx_mcs_map =
2321 sband->vht_cap.vht_mcs.rx_mcs_map;
2323 /* By default all radios are belonging to the first group */
2325 mutex_init(&data->mutex);
2327 /* Enable frame retransmissions for lossy channels */
2329 hw->max_rate_tries = 11;
2331 /* Work to be done prior to ieee80211_register_hw() */
2333 case HWSIM_REGTEST_DISABLED:
2334 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2335 case HWSIM_REGTEST_DRIVER_REG_ALL:
2336 case HWSIM_REGTEST_DIFF_COUNTRY:
2338 * Nothing to be done for driver regulatory domain
2339 * hints prior to ieee80211_register_hw()
2342 case HWSIM_REGTEST_WORLD_ROAM:
2344 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2345 wiphy_apply_custom_regulatory(hw->wiphy,
2346 &hwsim_world_regdom_custom_01);
2349 case HWSIM_REGTEST_CUSTOM_WORLD:
2350 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2351 wiphy_apply_custom_regulatory(hw->wiphy,
2352 &hwsim_world_regdom_custom_01);
2354 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2356 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2357 wiphy_apply_custom_regulatory(hw->wiphy,
2358 &hwsim_world_regdom_custom_01);
2359 } else if (i == 1) {
2360 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2361 wiphy_apply_custom_regulatory(hw->wiphy,
2362 &hwsim_world_regdom_custom_02);
2365 case HWSIM_REGTEST_STRICT_ALL:
2366 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2368 case HWSIM_REGTEST_STRICT_FOLLOW:
2369 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2371 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2373 case HWSIM_REGTEST_ALL:
2375 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2376 wiphy_apply_custom_regulatory(hw->wiphy,
2377 &hwsim_world_regdom_custom_01);
2378 } else if (i == 1) {
2379 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2380 wiphy_apply_custom_regulatory(hw->wiphy,
2381 &hwsim_world_regdom_custom_02);
2383 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2389 /* give the regulatory workqueue a chance to run */
2391 schedule_timeout_interruptible(1);
2392 err = ieee80211_register_hw(hw);
2394 printk(KERN_DEBUG "mac80211_hwsim: "
2395 "ieee80211_register_hw failed (%d)\n", err);
2399 /* Work to be done after to ieee80211_register_hw() */
2401 case HWSIM_REGTEST_WORLD_ROAM:
2402 case HWSIM_REGTEST_DISABLED:
2404 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2406 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2408 case HWSIM_REGTEST_DRIVER_REG_ALL:
2409 case HWSIM_REGTEST_STRICT_ALL:
2410 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2412 case HWSIM_REGTEST_DIFF_COUNTRY:
2413 if (i < ARRAY_SIZE(hwsim_alpha2s))
2414 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2416 case HWSIM_REGTEST_CUSTOM_WORLD:
2417 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2419 * Nothing to be done for custom world regulatory
2420 * domains after to ieee80211_register_hw
2423 case HWSIM_REGTEST_STRICT_FOLLOW:
2425 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2427 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2429 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2431 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2433 case HWSIM_REGTEST_ALL:
2435 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2437 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2439 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2445 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2446 hw->wiphy->perm_addr);
2448 data->debugfs = debugfs_create_dir("hwsim",
2449 hw->wiphy->debugfsdir);
2450 data->debugfs_ps = debugfs_create_file("ps", 0666,
2451 data->debugfs, data,
2453 data->debugfs_group = debugfs_create_file("group", 0666,
2454 data->debugfs, data,
2457 tasklet_hrtimer_init(&data->beacon_timer,
2458 mac80211_hwsim_beacon,
2459 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2461 list_add_tail(&data->list, &hwsim_radios);
2464 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2465 if (hwsim_mon == NULL)
2470 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2475 err = register_netdevice(hwsim_mon);
2481 err = hwsim_init_netlink();
2488 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2493 free_netdev(hwsim_mon);
2494 mac80211_hwsim_free();
2498 device_unregister(data->dev);
2500 ieee80211_free_hw(hw);
2502 mac80211_hwsim_free();
2505 module_init(init_mac80211_hwsim);
2507 static void __exit exit_mac80211_hwsim(void)
2509 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2511 hwsim_exit_netlink();
2513 mac80211_hwsim_free();
2514 unregister_netdev(hwsim_mon);
2516 module_exit(exit_mac80211_hwsim);