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");
56 static bool rctbl = false;
57 module_param(rctbl, bool, 0444);
58 MODULE_PARM_DESC(rctbl, "Handle rate control table");
60 struct hwsim_vif_priv {
68 #define HWSIM_VIF_MAGIC 0x69537748
70 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
72 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
73 WARN(vp->magic != HWSIM_VIF_MAGIC,
74 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
75 vif, vp->magic, vif->addr, vif->type, vif->p2p);
78 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
80 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
81 vp->magic = HWSIM_VIF_MAGIC;
84 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
86 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
90 struct hwsim_sta_priv {
94 #define HWSIM_STA_MAGIC 0x6d537749
96 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
98 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
99 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
102 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
104 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
105 sp->magic = HWSIM_STA_MAGIC;
108 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
110 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
114 struct hwsim_chanctx_priv {
118 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
120 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
122 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
123 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
126 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
128 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
129 cp->magic = HWSIM_CHANCTX_MAGIC;
132 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
134 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
138 static struct class *hwsim_class;
140 static struct net_device *hwsim_mon; /* global monitor netdev */
142 #define CHAN2G(_freq) { \
143 .band = IEEE80211_BAND_2GHZ, \
144 .center_freq = (_freq), \
145 .hw_value = (_freq), \
149 #define CHAN5G(_freq) { \
150 .band = IEEE80211_BAND_5GHZ, \
151 .center_freq = (_freq), \
152 .hw_value = (_freq), \
156 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
157 CHAN2G(2412), /* Channel 1 */
158 CHAN2G(2417), /* Channel 2 */
159 CHAN2G(2422), /* Channel 3 */
160 CHAN2G(2427), /* Channel 4 */
161 CHAN2G(2432), /* Channel 5 */
162 CHAN2G(2437), /* Channel 6 */
163 CHAN2G(2442), /* Channel 7 */
164 CHAN2G(2447), /* Channel 8 */
165 CHAN2G(2452), /* Channel 9 */
166 CHAN2G(2457), /* Channel 10 */
167 CHAN2G(2462), /* Channel 11 */
168 CHAN2G(2467), /* Channel 12 */
169 CHAN2G(2472), /* Channel 13 */
170 CHAN2G(2484), /* Channel 14 */
173 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
174 CHAN5G(5180), /* Channel 36 */
175 CHAN5G(5200), /* Channel 40 */
176 CHAN5G(5220), /* Channel 44 */
177 CHAN5G(5240), /* Channel 48 */
179 CHAN5G(5260), /* Channel 52 */
180 CHAN5G(5280), /* Channel 56 */
181 CHAN5G(5300), /* Channel 60 */
182 CHAN5G(5320), /* Channel 64 */
184 CHAN5G(5500), /* Channel 100 */
185 CHAN5G(5520), /* Channel 104 */
186 CHAN5G(5540), /* Channel 108 */
187 CHAN5G(5560), /* Channel 112 */
188 CHAN5G(5580), /* Channel 116 */
189 CHAN5G(5600), /* Channel 120 */
190 CHAN5G(5620), /* Channel 124 */
191 CHAN5G(5640), /* Channel 128 */
192 CHAN5G(5660), /* Channel 132 */
193 CHAN5G(5680), /* Channel 136 */
194 CHAN5G(5700), /* Channel 140 */
196 CHAN5G(5745), /* Channel 149 */
197 CHAN5G(5765), /* Channel 153 */
198 CHAN5G(5785), /* Channel 157 */
199 CHAN5G(5805), /* Channel 161 */
200 CHAN5G(5825), /* Channel 165 */
203 static const struct ieee80211_rate hwsim_rates[] = {
205 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
206 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
207 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
218 static spinlock_t hwsim_radio_lock;
219 static struct list_head hwsim_radios;
221 struct mac80211_hwsim_data {
222 struct list_head list;
223 struct ieee80211_hw *hw;
225 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
226 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
227 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
228 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
229 struct ieee80211_iface_combination if_combination;
231 struct mac_address addresses[2];
234 struct ieee80211_channel *tmp_chan;
235 struct delayed_work roc_done;
236 struct delayed_work hw_scan;
237 struct cfg80211_scan_request *hw_scan_request;
238 struct ieee80211_vif *hw_scan_vif;
241 struct ieee80211_channel *channel;
242 u64 beacon_int /* beacon interval in us */;
243 unsigned int rx_filter;
244 bool started, idle, scanning;
246 struct tasklet_hrtimer beacon_timer;
248 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
250 bool ps_poll_pending;
251 struct dentry *debugfs;
253 struct sk_buff_head pending; /* packets pending */
255 * Only radios in the same group can communicate together (the
256 * channel has to match too). Each bit represents a group. A
257 * radio can be in more then one group.
263 /* difference between this hw's clock and the real clock, in usecs */
266 /* absolute beacon transmission time. Used to cover up "tx" delay. */
271 struct hwsim_radiotap_hdr {
272 struct ieee80211_radiotap_header hdr;
280 struct hwsim_radiotap_ack_hdr {
281 struct ieee80211_radiotap_header hdr;
288 /* MAC80211_HWSIM netlinf family */
289 static struct genl_family hwsim_genl_family = {
290 .id = GENL_ID_GENERATE,
292 .name = "MAC80211_HWSIM",
294 .maxattr = HWSIM_ATTR_MAX,
297 /* MAC80211_HWSIM netlink policy */
299 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
300 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
301 .len = 6*sizeof(u8) },
302 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
303 .len = 6*sizeof(u8) },
304 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
305 .len = IEEE80211_MAX_DATA_LEN },
306 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
307 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
308 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
309 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
310 .len = IEEE80211_TX_MAX_RATES*sizeof(
311 struct hwsim_tx_rate)},
312 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
315 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
316 struct net_device *dev)
318 /* TODO: allow packet injection */
323 static inline u64 mac80211_hwsim_get_tsf_raw(void)
325 return ktime_to_us(ktime_get_real());
328 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
330 u64 now = mac80211_hwsim_get_tsf_raw();
331 return cpu_to_le64(now + data->tsf_offset);
334 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
335 struct ieee80211_vif *vif)
337 struct mac80211_hwsim_data *data = hw->priv;
338 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
341 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
342 struct ieee80211_vif *vif, u64 tsf)
344 struct mac80211_hwsim_data *data = hw->priv;
345 u64 now = mac80211_hwsim_get_tsf(hw, vif);
346 u32 bcn_int = data->beacon_int;
347 s64 delta = tsf - now;
349 data->tsf_offset += delta;
350 /* adjust after beaconing with new timestamp at old TBTT */
351 data->bcn_delta = do_div(delta, bcn_int);
354 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
355 struct sk_buff *tx_skb,
356 struct ieee80211_channel *chan)
358 struct mac80211_hwsim_data *data = hw->priv;
360 struct hwsim_radiotap_hdr *hdr;
362 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
363 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
365 if (!netif_running(hwsim_mon))
368 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
372 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
373 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
375 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
376 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
377 (1 << IEEE80211_RADIOTAP_RATE) |
378 (1 << IEEE80211_RADIOTAP_TSFT) |
379 (1 << IEEE80211_RADIOTAP_CHANNEL));
380 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
382 hdr->rt_rate = txrate->bitrate / 5;
383 hdr->rt_channel = cpu_to_le16(chan->center_freq);
384 flags = IEEE80211_CHAN_2GHZ;
385 if (txrate->flags & IEEE80211_RATE_ERP_G)
386 flags |= IEEE80211_CHAN_OFDM;
388 flags |= IEEE80211_CHAN_CCK;
389 hdr->rt_chbitmask = cpu_to_le16(flags);
391 skb->dev = hwsim_mon;
392 skb_set_mac_header(skb, 0);
393 skb->ip_summed = CHECKSUM_UNNECESSARY;
394 skb->pkt_type = PACKET_OTHERHOST;
395 skb->protocol = htons(ETH_P_802_2);
396 memset(skb->cb, 0, sizeof(skb->cb));
401 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
405 struct hwsim_radiotap_ack_hdr *hdr;
407 struct ieee80211_hdr *hdr11;
409 if (!netif_running(hwsim_mon))
412 skb = dev_alloc_skb(100);
416 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
417 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
419 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
420 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
421 (1 << IEEE80211_RADIOTAP_CHANNEL));
424 hdr->rt_channel = cpu_to_le16(chan->center_freq);
425 flags = IEEE80211_CHAN_2GHZ;
426 hdr->rt_chbitmask = cpu_to_le16(flags);
428 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
429 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
430 IEEE80211_STYPE_ACK);
431 hdr11->duration_id = cpu_to_le16(0);
432 memcpy(hdr11->addr1, addr, ETH_ALEN);
434 skb->dev = hwsim_mon;
435 skb_set_mac_header(skb, 0);
436 skb->ip_summed = CHECKSUM_UNNECESSARY;
437 skb->pkt_type = PACKET_OTHERHOST;
438 skb->protocol = htons(ETH_P_802_2);
439 memset(skb->cb, 0, sizeof(skb->cb));
444 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
453 /* TODO: accept (some) Beacons by default and other frames only
454 * if pending PS-Poll has been sent */
457 /* Allow unicast frames to own address if there is a pending
459 if (data->ps_poll_pending &&
460 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
462 data->ps_poll_pending = false;
472 struct mac80211_hwsim_addr_match_data {
477 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
478 struct ieee80211_vif *vif)
480 struct mac80211_hwsim_addr_match_data *md = data;
481 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
486 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
489 struct mac80211_hwsim_addr_match_data md;
491 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
496 ieee80211_iterate_active_interfaces_atomic(data->hw,
497 IEEE80211_IFACE_ITER_NORMAL,
498 mac80211_hwsim_addr_iter,
504 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
505 struct sk_buff *my_skb,
509 struct mac80211_hwsim_data *data = hw->priv;
510 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
511 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
513 unsigned int hwsim_flags = 0;
515 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
517 if (data->ps != PS_DISABLED)
518 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
519 /* If the queue contains MAX_QUEUE skb's drop some */
520 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
521 /* Droping until WARN_QUEUE level */
522 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
523 skb_dequeue(&data->pending);
526 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
528 goto nla_put_failure;
530 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
532 if (msg_head == NULL) {
533 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
534 goto nla_put_failure;
537 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
538 sizeof(struct mac_address), data->addresses[1].addr))
539 goto nla_put_failure;
541 /* We get the skb->data */
542 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
543 goto nla_put_failure;
545 /* We get the flags for this transmission, and we translate them to
548 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
549 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
551 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
552 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
554 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
555 goto nla_put_failure;
557 /* We get the tx control (rate and retries) info*/
559 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
560 tx_attempts[i].idx = info->status.rates[i].idx;
561 tx_attempts[i].count = info->status.rates[i].count;
564 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
565 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
567 goto nla_put_failure;
569 /* We create a cookie to identify this skb */
570 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
571 goto nla_put_failure;
573 genlmsg_end(skb, msg_head);
574 genlmsg_unicast(&init_net, skb, dst_portid);
576 /* Enqueue the packet */
577 skb_queue_tail(&data->pending, my_skb);
581 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
584 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
585 struct ieee80211_channel *c2)
590 return c1->center_freq == c2->center_freq;
593 struct tx_iter_data {
594 struct ieee80211_channel *channel;
598 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
599 struct ieee80211_vif *vif)
601 struct tx_iter_data *data = _data;
603 if (!vif->chanctx_conf)
606 if (!hwsim_chans_compat(data->channel,
607 rcu_dereference(vif->chanctx_conf)->def.chan))
610 data->receive = true;
613 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
615 struct ieee80211_channel *chan)
617 struct mac80211_hwsim_data *data = hw->priv, *data2;
619 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
620 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
621 struct ieee80211_rx_status rx_status;
624 memset(&rx_status, 0, sizeof(rx_status));
625 rx_status.flag |= RX_FLAG_MACTIME_START;
626 rx_status.freq = chan->center_freq;
627 rx_status.band = chan->band;
628 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
630 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
632 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
633 rx_status.flag |= RX_FLAG_VHT;
635 rx_status.rate_idx = info->control.rates[0].idx;
636 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
637 rx_status.flag |= RX_FLAG_HT;
639 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
640 rx_status.flag |= RX_FLAG_40MHZ;
641 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
642 rx_status.flag |= RX_FLAG_SHORT_GI;
643 /* TODO: simulate real signal strength (and optional packet loss) */
644 rx_status.signal = data->power_level - 50;
646 if (data->ps != PS_DISABLED)
647 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
649 /* release the skb's source info */
657 * Get absolute mactime here so all HWs RX at the "same time", and
658 * absolute TX time for beacon mactime so the timestamp matches.
659 * Giving beacons a different mactime than non-beacons looks messy, but
660 * it helps the Toffset be exact and a ~10us mactime discrepancy
661 * probably doesn't really matter.
663 if (ieee80211_is_beacon(hdr->frame_control) ||
664 ieee80211_is_probe_resp(hdr->frame_control))
665 now = data->abs_bcn_ts;
667 now = mac80211_hwsim_get_tsf_raw();
669 /* Copy skb to all enabled radios that are on the current frequency */
670 spin_lock(&hwsim_radio_lock);
671 list_for_each_entry(data2, &hwsim_radios, list) {
672 struct sk_buff *nskb;
673 struct tx_iter_data tx_iter_data = {
681 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
682 !hwsim_ps_rx_ok(data2, skb))
685 if (!(data->group & data2->group))
688 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
689 !hwsim_chans_compat(chan, data2->channel)) {
690 ieee80211_iterate_active_interfaces_atomic(
691 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
692 mac80211_hwsim_tx_iter, &tx_iter_data);
693 if (!tx_iter_data.receive)
698 * reserve some space for our vendor and the normal
699 * radiotap header, since we're copying anyway
701 if (skb->len < PAGE_SIZE && paged_rx) {
702 struct page *page = alloc_page(GFP_ATOMIC);
707 nskb = dev_alloc_skb(128);
713 memcpy(page_address(page), skb->data, skb->len);
714 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
716 nskb = skb_copy(skb, GFP_ATOMIC);
721 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
724 rx_status.mactime = now + data2->tsf_offset;
727 * Don't enable this code by default as the OUI 00:00:00
728 * is registered to Xerox so we shouldn't use it here, it
729 * might find its way into pcap files.
730 * Note that this code requires the headroom in the SKB
731 * that was allocated earlier.
733 rx_status.vendor_radiotap_oui[0] = 0x00;
734 rx_status.vendor_radiotap_oui[1] = 0x00;
735 rx_status.vendor_radiotap_oui[2] = 0x00;
736 rx_status.vendor_radiotap_subns = 127;
738 * Radiotap vendor namespaces can (and should) also be
739 * split into fields by using the standard radiotap
740 * presence bitmap mechanism. Use just BIT(0) here for
741 * the presence bitmap.
743 rx_status.vendor_radiotap_bitmap = BIT(0);
744 /* We have 8 bytes of (dummy) data */
745 rx_status.vendor_radiotap_len = 8;
746 /* For testing, also require it to be aligned */
747 rx_status.vendor_radiotap_align = 8;
749 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
752 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
753 ieee80211_rx_irqsafe(data2->hw, nskb);
755 spin_unlock(&hwsim_radio_lock);
760 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
761 struct ieee80211_tx_control *control,
764 struct mac80211_hwsim_data *data = hw->priv;
765 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
766 struct ieee80211_chanctx_conf *chanctx_conf;
767 struct ieee80211_channel *channel;
771 if (WARN_ON(skb->len < 10)) {
772 /* Should not happen; just a sanity check for addr1 use */
773 ieee80211_free_txskb(hw, skb);
777 if (data->channels == 1) {
778 channel = data->channel;
779 } else if (txi->hw_queue == 4) {
780 channel = data->tmp_chan;
782 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
784 channel = chanctx_conf->def.chan;
789 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
790 ieee80211_free_txskb(hw, skb);
794 if (data->idle && !data->tmp_chan) {
795 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
796 ieee80211_free_txskb(hw, skb);
800 if (txi->control.vif)
801 hwsim_check_magic(txi->control.vif);
803 hwsim_check_sta_magic(control->sta);
806 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
808 ARRAY_SIZE(txi->control.rates));
810 txi->rate_driver_data[0] = channel;
811 mac80211_hwsim_monitor_rx(hw, skb, channel);
813 /* wmediumd mode check */
814 _portid = ACCESS_ONCE(wmediumd_portid);
817 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
819 /* NO wmediumd detected, perfect medium simulation */
820 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
822 if (ack && skb->len >= 16) {
823 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
824 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
827 ieee80211_tx_info_clear_status(txi);
829 /* frame was transmitted at most favorable rate at first attempt */
830 txi->control.rates[0].count = 1;
831 txi->control.rates[1].idx = -1;
833 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
834 txi->flags |= IEEE80211_TX_STAT_ACK;
835 ieee80211_tx_status_irqsafe(hw, skb);
839 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
841 struct mac80211_hwsim_data *data = hw->priv;
842 wiphy_debug(hw->wiphy, "%s\n", __func__);
843 data->started = true;
848 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
850 struct mac80211_hwsim_data *data = hw->priv;
851 data->started = false;
852 tasklet_hrtimer_cancel(&data->beacon_timer);
853 wiphy_debug(hw->wiphy, "%s\n", __func__);
857 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
858 struct ieee80211_vif *vif)
860 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
861 __func__, ieee80211_vif_type_p2p(vif),
863 hwsim_set_magic(vif);
866 vif->hw_queue[IEEE80211_AC_VO] = 0;
867 vif->hw_queue[IEEE80211_AC_VI] = 1;
868 vif->hw_queue[IEEE80211_AC_BE] = 2;
869 vif->hw_queue[IEEE80211_AC_BK] = 3;
875 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
876 struct ieee80211_vif *vif,
877 enum nl80211_iftype newtype,
880 newtype = ieee80211_iftype_p2p(newtype, newp2p);
881 wiphy_debug(hw->wiphy,
882 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
883 __func__, ieee80211_vif_type_p2p(vif),
885 hwsim_check_magic(vif);
888 * interface may change from non-AP to AP in
889 * which case this needs to be set up again
896 static void mac80211_hwsim_remove_interface(
897 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
899 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
900 __func__, ieee80211_vif_type_p2p(vif),
902 hwsim_check_magic(vif);
903 hwsim_clear_magic(vif);
906 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
908 struct ieee80211_channel *chan)
910 u32 _pid = ACCESS_ONCE(wmediumd_portid);
913 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
914 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
916 ARRAY_SIZE(txi->control.rates));
919 mac80211_hwsim_monitor_rx(hw, skb, chan);
922 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
924 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
928 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
929 struct ieee80211_vif *vif)
931 struct mac80211_hwsim_data *data = arg;
932 struct ieee80211_hw *hw = data->hw;
933 struct ieee80211_tx_info *info;
934 struct ieee80211_rate *txrate;
935 struct ieee80211_mgmt *mgmt;
938 hwsim_check_magic(vif);
940 if (vif->type != NL80211_IFTYPE_AP &&
941 vif->type != NL80211_IFTYPE_MESH_POINT &&
942 vif->type != NL80211_IFTYPE_ADHOC)
945 skb = ieee80211_beacon_get(hw, vif);
948 info = IEEE80211_SKB_CB(skb);
950 ieee80211_get_tx_rates(vif, NULL, skb,
952 ARRAY_SIZE(info->control.rates));
954 txrate = ieee80211_get_tx_rate(hw, info);
956 mgmt = (struct ieee80211_mgmt *) skb->data;
957 /* fake header transmission time */
958 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
959 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
961 24 * 8 * 10 / txrate->bitrate);
963 mac80211_hwsim_tx_frame(hw, skb,
964 rcu_dereference(vif->chanctx_conf)->def.chan);
967 static enum hrtimer_restart
968 mac80211_hwsim_beacon(struct hrtimer *timer)
970 struct mac80211_hwsim_data *data =
971 container_of(timer, struct mac80211_hwsim_data,
973 struct ieee80211_hw *hw = data->hw;
974 u64 bcn_int = data->beacon_int;
980 ieee80211_iterate_active_interfaces_atomic(
981 hw, IEEE80211_IFACE_ITER_NORMAL,
982 mac80211_hwsim_beacon_tx, data);
984 /* beacon at new TBTT + beacon interval */
985 if (data->bcn_delta) {
986 bcn_int -= data->bcn_delta;
990 next_bcn = ktime_add(hrtimer_get_expires(timer),
991 ns_to_ktime(bcn_int * 1000));
992 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
994 return HRTIMER_NORESTART;
997 static const char * const hwsim_chanwidths[] = {
998 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
999 [NL80211_CHAN_WIDTH_20] = "ht20",
1000 [NL80211_CHAN_WIDTH_40] = "ht40",
1001 [NL80211_CHAN_WIDTH_80] = "vht80",
1002 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1003 [NL80211_CHAN_WIDTH_160] = "vht160",
1006 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1008 struct mac80211_hwsim_data *data = hw->priv;
1009 struct ieee80211_conf *conf = &hw->conf;
1010 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1011 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1012 [IEEE80211_SMPS_OFF] = "off",
1013 [IEEE80211_SMPS_STATIC] = "static",
1014 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1017 if (conf->chandef.chan)
1018 wiphy_debug(hw->wiphy,
1019 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1021 conf->chandef.chan->center_freq,
1022 conf->chandef.center_freq1,
1023 conf->chandef.center_freq2,
1024 hwsim_chanwidths[conf->chandef.width],
1025 !!(conf->flags & IEEE80211_CONF_IDLE),
1026 !!(conf->flags & IEEE80211_CONF_PS),
1027 smps_modes[conf->smps_mode]);
1029 wiphy_debug(hw->wiphy,
1030 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1032 !!(conf->flags & IEEE80211_CONF_IDLE),
1033 !!(conf->flags & IEEE80211_CONF_PS),
1034 smps_modes[conf->smps_mode]);
1036 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1038 data->channel = conf->chandef.chan;
1040 WARN_ON(data->channel && data->channels > 1);
1042 data->power_level = conf->power_level;
1043 if (!data->started || !data->beacon_int)
1044 tasklet_hrtimer_cancel(&data->beacon_timer);
1045 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1046 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1047 u32 bcn_int = data->beacon_int;
1048 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1050 tasklet_hrtimer_start(&data->beacon_timer,
1051 ns_to_ktime(until_tbtt * 1000),
1059 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1060 unsigned int changed_flags,
1061 unsigned int *total_flags,u64 multicast)
1063 struct mac80211_hwsim_data *data = hw->priv;
1065 wiphy_debug(hw->wiphy, "%s\n", __func__);
1067 data->rx_filter = 0;
1068 if (*total_flags & FIF_PROMISC_IN_BSS)
1069 data->rx_filter |= FIF_PROMISC_IN_BSS;
1070 if (*total_flags & FIF_ALLMULTI)
1071 data->rx_filter |= FIF_ALLMULTI;
1073 *total_flags = data->rx_filter;
1076 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1077 struct ieee80211_vif *vif)
1079 unsigned int *count = data;
1080 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1086 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1087 struct ieee80211_vif *vif,
1088 struct ieee80211_bss_conf *info,
1091 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1092 struct mac80211_hwsim_data *data = hw->priv;
1094 hwsim_check_magic(vif);
1096 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1097 __func__, changed, vif->addr);
1099 if (changed & BSS_CHANGED_BSSID) {
1100 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1101 __func__, info->bssid);
1102 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1105 if (changed & BSS_CHANGED_ASSOC) {
1106 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1107 info->assoc, info->aid);
1108 vp->assoc = info->assoc;
1109 vp->aid = info->aid;
1112 if (changed & BSS_CHANGED_BEACON_INT) {
1113 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1114 data->beacon_int = info->beacon_int * 1024;
1117 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1118 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1119 vp->bcn_en = info->enable_beacon;
1120 if (data->started &&
1121 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1122 info->enable_beacon) {
1123 u64 tsf, until_tbtt;
1125 if (WARN_ON(!data->beacon_int))
1126 data->beacon_int = 1000 * 1024;
1127 tsf = mac80211_hwsim_get_tsf(hw, vif);
1128 bcn_int = data->beacon_int;
1129 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1130 tasklet_hrtimer_start(&data->beacon_timer,
1131 ns_to_ktime(until_tbtt * 1000),
1133 } else if (!info->enable_beacon) {
1134 unsigned int count = 0;
1135 ieee80211_iterate_active_interfaces_atomic(
1136 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1137 mac80211_hwsim_bcn_en_iter, &count);
1138 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1141 tasklet_hrtimer_cancel(&data->beacon_timer);
1145 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1146 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1147 info->use_cts_prot);
1150 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1151 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1152 info->use_short_preamble);
1155 if (changed & BSS_CHANGED_ERP_SLOT) {
1156 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1159 if (changed & BSS_CHANGED_HT) {
1160 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1161 info->ht_operation_mode);
1164 if (changed & BSS_CHANGED_BASIC_RATES) {
1165 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1166 (unsigned long long) info->basic_rates);
1169 if (changed & BSS_CHANGED_TXPOWER)
1170 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1173 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1174 struct ieee80211_vif *vif,
1175 struct ieee80211_sta *sta)
1177 hwsim_check_magic(vif);
1178 hwsim_set_sta_magic(sta);
1183 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1184 struct ieee80211_vif *vif,
1185 struct ieee80211_sta *sta)
1187 hwsim_check_magic(vif);
1188 hwsim_clear_sta_magic(sta);
1193 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1194 struct ieee80211_vif *vif,
1195 enum sta_notify_cmd cmd,
1196 struct ieee80211_sta *sta)
1198 hwsim_check_magic(vif);
1201 case STA_NOTIFY_SLEEP:
1202 case STA_NOTIFY_AWAKE:
1203 /* TODO: make good use of these flags */
1206 WARN(1, "Invalid sta notify: %d\n", cmd);
1211 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1212 struct ieee80211_sta *sta,
1215 hwsim_check_sta_magic(sta);
1219 static int mac80211_hwsim_conf_tx(
1220 struct ieee80211_hw *hw,
1221 struct ieee80211_vif *vif, u16 queue,
1222 const struct ieee80211_tx_queue_params *params)
1224 wiphy_debug(hw->wiphy,
1225 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1227 params->txop, params->cw_min,
1228 params->cw_max, params->aifs);
1232 static int mac80211_hwsim_get_survey(
1233 struct ieee80211_hw *hw, int idx,
1234 struct survey_info *survey)
1236 struct ieee80211_conf *conf = &hw->conf;
1238 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1243 /* Current channel */
1244 survey->channel = conf->chandef.chan;
1247 * Magically conjured noise level --- this is only ok for simulated hardware.
1249 * A real driver which cannot determine the real channel noise MUST NOT
1250 * report any noise, especially not a magically conjured one :-)
1252 survey->filled = SURVEY_INFO_NOISE_DBM;
1253 survey->noise = -92;
1258 #ifdef CONFIG_NL80211_TESTMODE
1260 * This section contains example code for using netlink
1261 * attributes with the testmode command in nl80211.
1264 /* These enums need to be kept in sync with userspace */
1265 enum hwsim_testmode_attr {
1266 __HWSIM_TM_ATTR_INVALID = 0,
1267 HWSIM_TM_ATTR_CMD = 1,
1268 HWSIM_TM_ATTR_PS = 2,
1271 __HWSIM_TM_ATTR_AFTER_LAST,
1272 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1275 enum hwsim_testmode_cmd {
1276 HWSIM_TM_CMD_SET_PS = 0,
1277 HWSIM_TM_CMD_GET_PS = 1,
1278 HWSIM_TM_CMD_STOP_QUEUES = 2,
1279 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1282 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1283 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1284 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1287 static int hwsim_fops_ps_write(void *dat, u64 val);
1289 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1290 struct ieee80211_vif *vif,
1291 void *data, int len)
1293 struct mac80211_hwsim_data *hwsim = hw->priv;
1294 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1295 struct sk_buff *skb;
1298 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1299 hwsim_testmode_policy);
1303 if (!tb[HWSIM_TM_ATTR_CMD])
1306 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1307 case HWSIM_TM_CMD_SET_PS:
1308 if (!tb[HWSIM_TM_ATTR_PS])
1310 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1311 return hwsim_fops_ps_write(hwsim, ps);
1312 case HWSIM_TM_CMD_GET_PS:
1313 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1314 nla_total_size(sizeof(u32)));
1317 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1318 goto nla_put_failure;
1319 return cfg80211_testmode_reply(skb);
1320 case HWSIM_TM_CMD_STOP_QUEUES:
1321 ieee80211_stop_queues(hw);
1323 case HWSIM_TM_CMD_WAKE_QUEUES:
1324 ieee80211_wake_queues(hw);
1336 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1337 struct ieee80211_vif *vif,
1338 enum ieee80211_ampdu_mlme_action action,
1339 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1343 case IEEE80211_AMPDU_TX_START:
1344 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1346 case IEEE80211_AMPDU_TX_STOP_CONT:
1347 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1348 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1349 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1351 case IEEE80211_AMPDU_TX_OPERATIONAL:
1353 case IEEE80211_AMPDU_RX_START:
1354 case IEEE80211_AMPDU_RX_STOP:
1363 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1365 /* Not implemented, queues only on kernel side */
1368 static void hw_scan_work(struct work_struct *work)
1370 struct mac80211_hwsim_data *hwsim =
1371 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1372 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1375 mutex_lock(&hwsim->mutex);
1376 if (hwsim->scan_chan_idx >= req->n_channels) {
1377 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1378 ieee80211_scan_completed(hwsim->hw, false);
1379 hwsim->hw_scan_request = NULL;
1380 hwsim->hw_scan_vif = NULL;
1381 hwsim->tmp_chan = NULL;
1382 mutex_unlock(&hwsim->mutex);
1386 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1387 req->channels[hwsim->scan_chan_idx]->center_freq);
1389 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1390 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
1396 for (i = 0; i < req->n_ssids; i++) {
1397 struct sk_buff *probe;
1399 probe = ieee80211_probereq_get(hwsim->hw,
1402 req->ssids[i].ssid_len,
1408 memcpy(skb_put(probe, req->ie_len), req->ie,
1412 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1417 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1418 msecs_to_jiffies(dwell));
1419 hwsim->scan_chan_idx++;
1420 mutex_unlock(&hwsim->mutex);
1423 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1424 struct ieee80211_vif *vif,
1425 struct cfg80211_scan_request *req)
1427 struct mac80211_hwsim_data *hwsim = hw->priv;
1429 mutex_lock(&hwsim->mutex);
1430 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1431 mutex_unlock(&hwsim->mutex);
1434 hwsim->hw_scan_request = req;
1435 hwsim->hw_scan_vif = vif;
1436 hwsim->scan_chan_idx = 0;
1437 mutex_unlock(&hwsim->mutex);
1439 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1441 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1446 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1447 struct ieee80211_vif *vif)
1449 struct mac80211_hwsim_data *hwsim = hw->priv;
1451 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1453 cancel_delayed_work_sync(&hwsim->hw_scan);
1455 mutex_lock(&hwsim->mutex);
1456 ieee80211_scan_completed(hwsim->hw, true);
1457 hwsim->tmp_chan = NULL;
1458 hwsim->hw_scan_request = NULL;
1459 hwsim->hw_scan_vif = NULL;
1460 mutex_unlock(&hwsim->mutex);
1463 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1465 struct mac80211_hwsim_data *hwsim = hw->priv;
1467 mutex_lock(&hwsim->mutex);
1469 if (hwsim->scanning) {
1470 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1474 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1475 hwsim->scanning = true;
1478 mutex_unlock(&hwsim->mutex);
1481 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1483 struct mac80211_hwsim_data *hwsim = hw->priv;
1485 mutex_lock(&hwsim->mutex);
1487 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1488 hwsim->scanning = false;
1490 mutex_unlock(&hwsim->mutex);
1493 static void hw_roc_done(struct work_struct *work)
1495 struct mac80211_hwsim_data *hwsim =
1496 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1498 mutex_lock(&hwsim->mutex);
1499 ieee80211_remain_on_channel_expired(hwsim->hw);
1500 hwsim->tmp_chan = NULL;
1501 mutex_unlock(&hwsim->mutex);
1503 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1506 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1507 struct ieee80211_vif *vif,
1508 struct ieee80211_channel *chan,
1510 enum ieee80211_roc_type type)
1512 struct mac80211_hwsim_data *hwsim = hw->priv;
1514 mutex_lock(&hwsim->mutex);
1515 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1516 mutex_unlock(&hwsim->mutex);
1520 hwsim->tmp_chan = chan;
1521 mutex_unlock(&hwsim->mutex);
1523 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1524 chan->center_freq, duration);
1526 ieee80211_ready_on_channel(hw);
1528 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1529 msecs_to_jiffies(duration));
1533 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1535 struct mac80211_hwsim_data *hwsim = hw->priv;
1537 cancel_delayed_work_sync(&hwsim->roc_done);
1539 mutex_lock(&hwsim->mutex);
1540 hwsim->tmp_chan = NULL;
1541 mutex_unlock(&hwsim->mutex);
1543 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1548 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1549 struct ieee80211_chanctx_conf *ctx)
1551 hwsim_set_chanctx_magic(ctx);
1552 wiphy_debug(hw->wiphy,
1553 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1554 ctx->def.chan->center_freq, ctx->def.width,
1555 ctx->def.center_freq1, ctx->def.center_freq2);
1559 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1560 struct ieee80211_chanctx_conf *ctx)
1562 wiphy_debug(hw->wiphy,
1563 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1564 ctx->def.chan->center_freq, ctx->def.width,
1565 ctx->def.center_freq1, ctx->def.center_freq2);
1566 hwsim_check_chanctx_magic(ctx);
1567 hwsim_clear_chanctx_magic(ctx);
1570 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1571 struct ieee80211_chanctx_conf *ctx,
1574 hwsim_check_chanctx_magic(ctx);
1575 wiphy_debug(hw->wiphy,
1576 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1577 ctx->def.chan->center_freq, ctx->def.width,
1578 ctx->def.center_freq1, ctx->def.center_freq2);
1581 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1582 struct ieee80211_vif *vif,
1583 struct ieee80211_chanctx_conf *ctx)
1585 hwsim_check_magic(vif);
1586 hwsim_check_chanctx_magic(ctx);
1591 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1592 struct ieee80211_vif *vif,
1593 struct ieee80211_chanctx_conf *ctx)
1595 hwsim_check_magic(vif);
1596 hwsim_check_chanctx_magic(ctx);
1599 static const struct ieee80211_ops mac80211_hwsim_ops = {
1600 .tx = mac80211_hwsim_tx,
1601 .start = mac80211_hwsim_start,
1602 .stop = mac80211_hwsim_stop,
1603 .add_interface = mac80211_hwsim_add_interface,
1604 .change_interface = mac80211_hwsim_change_interface,
1605 .remove_interface = mac80211_hwsim_remove_interface,
1606 .config = mac80211_hwsim_config,
1607 .configure_filter = mac80211_hwsim_configure_filter,
1608 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1609 .sta_add = mac80211_hwsim_sta_add,
1610 .sta_remove = mac80211_hwsim_sta_remove,
1611 .sta_notify = mac80211_hwsim_sta_notify,
1612 .set_tim = mac80211_hwsim_set_tim,
1613 .conf_tx = mac80211_hwsim_conf_tx,
1614 .get_survey = mac80211_hwsim_get_survey,
1615 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1616 .ampdu_action = mac80211_hwsim_ampdu_action,
1617 .sw_scan_start = mac80211_hwsim_sw_scan,
1618 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1619 .flush = mac80211_hwsim_flush,
1620 .get_tsf = mac80211_hwsim_get_tsf,
1621 .set_tsf = mac80211_hwsim_set_tsf,
1624 static struct ieee80211_ops mac80211_hwsim_mchan_ops;
1626 static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
1628 debugfs_remove_recursive(data->debugfs);
1629 ieee80211_unregister_hw(data->hw);
1630 device_release_driver(data->dev);
1631 device_unregister(data->dev);
1632 ieee80211_free_hw(data->hw);
1635 static void mac80211_hwsim_free(void)
1637 struct mac80211_hwsim_data *data;
1639 spin_lock_bh(&hwsim_radio_lock);
1640 while ((data = list_first_entry_or_null(&hwsim_radios,
1641 struct mac80211_hwsim_data,
1643 list_del(&data->list);
1644 spin_unlock_bh(&hwsim_radio_lock);
1645 mac80211_hwsim_destroy_radio(data);
1646 spin_lock_bh(&hwsim_radio_lock);
1648 spin_unlock_bh(&hwsim_radio_lock);
1649 class_destroy(hwsim_class);
1652 static struct platform_driver mac80211_hwsim_driver = {
1654 .name = "mac80211_hwsim",
1655 .owner = THIS_MODULE,
1659 static const struct net_device_ops hwsim_netdev_ops = {
1660 .ndo_start_xmit = hwsim_mon_xmit,
1661 .ndo_change_mtu = eth_change_mtu,
1662 .ndo_set_mac_address = eth_mac_addr,
1663 .ndo_validate_addr = eth_validate_addr,
1666 static void hwsim_mon_setup(struct net_device *dev)
1668 dev->netdev_ops = &hwsim_netdev_ops;
1669 dev->destructor = free_netdev;
1671 dev->tx_queue_len = 0;
1672 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1673 memset(dev->dev_addr, 0, ETH_ALEN);
1674 dev->dev_addr[0] = 0x12;
1678 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1680 struct mac80211_hwsim_data *data = dat;
1681 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1682 struct sk_buff *skb;
1683 struct ieee80211_pspoll *pspoll;
1688 wiphy_debug(data->hw->wiphy,
1689 "%s: send PS-Poll to %pM for aid %d\n",
1690 __func__, vp->bssid, vp->aid);
1692 skb = dev_alloc_skb(sizeof(*pspoll));
1695 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1696 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1697 IEEE80211_STYPE_PSPOLL |
1699 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1700 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1701 memcpy(pspoll->ta, mac, ETH_ALEN);
1704 mac80211_hwsim_tx_frame(data->hw, skb,
1705 rcu_dereference(vif->chanctx_conf)->def.chan);
1709 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1710 struct ieee80211_vif *vif, int ps)
1712 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1713 struct sk_buff *skb;
1714 struct ieee80211_hdr *hdr;
1719 wiphy_debug(data->hw->wiphy,
1720 "%s: send data::nullfunc to %pM ps=%d\n",
1721 __func__, vp->bssid, ps);
1723 skb = dev_alloc_skb(sizeof(*hdr));
1726 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1727 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1728 IEEE80211_STYPE_NULLFUNC |
1729 (ps ? IEEE80211_FCTL_PM : 0));
1730 hdr->duration_id = cpu_to_le16(0);
1731 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1732 memcpy(hdr->addr2, mac, ETH_ALEN);
1733 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1736 mac80211_hwsim_tx_frame(data->hw, skb,
1737 rcu_dereference(vif->chanctx_conf)->def.chan);
1742 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1743 struct ieee80211_vif *vif)
1745 struct mac80211_hwsim_data *data = dat;
1746 hwsim_send_nullfunc(data, mac, vif, 1);
1750 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1751 struct ieee80211_vif *vif)
1753 struct mac80211_hwsim_data *data = dat;
1754 hwsim_send_nullfunc(data, mac, vif, 0);
1758 static int hwsim_fops_ps_read(void *dat, u64 *val)
1760 struct mac80211_hwsim_data *data = dat;
1765 static int hwsim_fops_ps_write(void *dat, u64 val)
1767 struct mac80211_hwsim_data *data = dat;
1768 enum ps_mode old_ps;
1770 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1771 val != PS_MANUAL_POLL)
1777 if (val == PS_MANUAL_POLL) {
1778 ieee80211_iterate_active_interfaces(data->hw,
1779 IEEE80211_IFACE_ITER_NORMAL,
1780 hwsim_send_ps_poll, data);
1781 data->ps_poll_pending = true;
1782 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1783 ieee80211_iterate_active_interfaces(data->hw,
1784 IEEE80211_IFACE_ITER_NORMAL,
1785 hwsim_send_nullfunc_ps,
1787 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1788 ieee80211_iterate_active_interfaces(data->hw,
1789 IEEE80211_IFACE_ITER_NORMAL,
1790 hwsim_send_nullfunc_no_ps,
1797 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1800 static int hwsim_write_simulate_radar(void *dat, u64 val)
1802 struct mac80211_hwsim_data *data = dat;
1804 ieee80211_radar_detected(data->hw);
1809 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
1810 hwsim_write_simulate_radar, "%llu\n");
1812 static int hwsim_fops_group_read(void *dat, u64 *val)
1814 struct mac80211_hwsim_data *data = dat;
1819 static int hwsim_fops_group_write(void *dat, u64 val)
1821 struct mac80211_hwsim_data *data = dat;
1826 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1827 hwsim_fops_group_read, hwsim_fops_group_write,
1830 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1831 struct mac_address *addr)
1833 struct mac80211_hwsim_data *data;
1834 bool _found = false;
1836 spin_lock_bh(&hwsim_radio_lock);
1837 list_for_each_entry(data, &hwsim_radios, list) {
1838 if (memcmp(data->addresses[1].addr, addr,
1839 sizeof(struct mac_address)) == 0) {
1844 spin_unlock_bh(&hwsim_radio_lock);
1852 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1853 struct genl_info *info)
1856 struct ieee80211_hdr *hdr;
1857 struct mac80211_hwsim_data *data2;
1858 struct ieee80211_tx_info *txi;
1859 struct hwsim_tx_rate *tx_attempts;
1860 unsigned long ret_skb_ptr;
1861 struct sk_buff *skb, *tmp;
1862 struct mac_address *src;
1863 unsigned int hwsim_flags;
1868 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1869 !info->attrs[HWSIM_ATTR_FLAGS] ||
1870 !info->attrs[HWSIM_ATTR_COOKIE] ||
1871 !info->attrs[HWSIM_ATTR_TX_INFO])
1874 src = (struct mac_address *)nla_data(
1875 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1876 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1878 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1880 data2 = get_hwsim_data_ref_from_addr(src);
1885 /* look for the skb matching the cookie passed back from user */
1886 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1887 if ((unsigned long)skb == ret_skb_ptr) {
1888 skb_unlink(skb, &data2->pending);
1898 /* Tx info received because the frame was broadcasted on user space,
1899 so we get all the necessary info: tx attempts and skb control buff */
1901 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1902 info->attrs[HWSIM_ATTR_TX_INFO]);
1904 /* now send back TX status */
1905 txi = IEEE80211_SKB_CB(skb);
1907 ieee80211_tx_info_clear_status(txi);
1909 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1910 txi->status.rates[i].idx = tx_attempts[i].idx;
1911 txi->status.rates[i].count = tx_attempts[i].count;
1912 /*txi->status.rates[i].flags = 0;*/
1915 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1917 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1918 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1919 if (skb->len >= 16) {
1920 hdr = (struct ieee80211_hdr *) skb->data;
1921 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1924 txi->flags |= IEEE80211_TX_STAT_ACK;
1926 ieee80211_tx_status_irqsafe(data2->hw, skb);
1933 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1934 struct genl_info *info)
1937 struct mac80211_hwsim_data *data2;
1938 struct ieee80211_rx_status rx_status;
1939 struct mac_address *dst;
1942 struct sk_buff *skb = NULL;
1944 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1945 !info->attrs[HWSIM_ATTR_FRAME] ||
1946 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1947 !info->attrs[HWSIM_ATTR_SIGNAL])
1950 dst = (struct mac_address *)nla_data(
1951 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1953 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1954 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1956 /* Allocate new skb here */
1957 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1961 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1963 memcpy(skb_put(skb, frame_data_len), frame_data,
1968 data2 = get_hwsim_data_ref_from_addr(dst);
1973 /* check if radio is configured properly */
1975 if (data2->idle || !data2->started)
1978 /*A frame is received from user space*/
1979 memset(&rx_status, 0, sizeof(rx_status));
1980 rx_status.freq = data2->channel->center_freq;
1981 rx_status.band = data2->channel->band;
1982 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1983 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1985 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1986 ieee80211_rx_irqsafe(data2->hw, skb);
1990 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1997 static int hwsim_register_received_nl(struct sk_buff *skb_2,
1998 struct genl_info *info)
2003 wmediumd_portid = info->snd_portid;
2005 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2006 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2010 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2014 /* Generic Netlink operations array */
2015 static const struct genl_ops hwsim_ops[] = {
2017 .cmd = HWSIM_CMD_REGISTER,
2018 .policy = hwsim_genl_policy,
2019 .doit = hwsim_register_received_nl,
2020 .flags = GENL_ADMIN_PERM,
2023 .cmd = HWSIM_CMD_FRAME,
2024 .policy = hwsim_genl_policy,
2025 .doit = hwsim_cloned_frame_received_nl,
2028 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2029 .policy = hwsim_genl_policy,
2030 .doit = hwsim_tx_info_frame_received_nl,
2034 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2035 unsigned long state,
2038 struct netlink_notify *notify = _notify;
2040 if (state != NETLINK_URELEASE)
2043 if (notify->portid == wmediumd_portid) {
2044 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2045 " socket, switching to perfect channel medium\n");
2046 wmediumd_portid = 0;
2052 static struct notifier_block hwsim_netlink_notifier = {
2053 .notifier_call = mac80211_hwsim_netlink_notify,
2056 static int hwsim_init_netlink(void)
2060 /* userspace test API hasn't been adjusted for multi-channel */
2064 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2066 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
2070 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2077 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2081 static void hwsim_exit_netlink(void)
2083 /* userspace test API hasn't been adjusted for multi-channel */
2087 /* unregister the notifier */
2088 netlink_unregister_notifier(&hwsim_netlink_notifier);
2089 /* unregister the family */
2090 genl_unregister_family(&hwsim_genl_family);
2093 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2094 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2095 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2096 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2097 #ifdef CONFIG_MAC80211_MESH
2098 BIT(NL80211_IFTYPE_MESH_POINT) |
2100 BIT(NL80211_IFTYPE_AP) |
2101 BIT(NL80211_IFTYPE_P2P_GO) },
2102 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2105 static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
2106 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
2109 static const struct ieee80211_iface_combination hwsim_if_comb[] = {
2111 .limits = hwsim_if_limits,
2112 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2113 .max_interfaces = 2048,
2114 .num_different_channels = 1,
2117 .limits = hwsim_if_dfs_limits,
2118 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
2119 .max_interfaces = 8,
2120 .num_different_channels = 1,
2121 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2122 BIT(NL80211_CHAN_WIDTH_20) |
2123 BIT(NL80211_CHAN_WIDTH_40) |
2124 BIT(NL80211_CHAN_WIDTH_80) |
2125 BIT(NL80211_CHAN_WIDTH_160),
2129 static int __init mac80211_hwsim_create_radio(int idx)
2133 struct mac80211_hwsim_data *data;
2134 struct ieee80211_hw *hw;
2135 enum ieee80211_band band;
2136 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2139 ops = &mac80211_hwsim_mchan_ops;
2140 hw = ieee80211_alloc_hw(sizeof(*data), ops);
2142 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2149 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2150 if (IS_ERR(data->dev)) {
2152 "mac80211_hwsim: device_create failed (%ld)\n",
2153 PTR_ERR(data->dev));
2155 goto failed_drvdata;
2157 data->dev->driver = &mac80211_hwsim_driver.driver;
2158 err = device_bind_driver(data->dev);
2160 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2165 skb_queue_head_init(&data->pending);
2167 SET_IEEE80211_DEV(hw, data->dev);
2168 memset(addr, 0, ETH_ALEN);
2172 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2173 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2174 data->addresses[1].addr[0] |= 0x40;
2175 hw->wiphy->n_addresses = 2;
2176 hw->wiphy->addresses = data->addresses;
2178 data->channels = channels;
2180 if (data->channels > 1) {
2181 hw->wiphy->max_scan_ssids = 255;
2182 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2183 hw->wiphy->max_remain_on_channel_duration = 1000;
2184 /* For channels > 1 DFS is not allowed */
2185 hw->wiphy->n_iface_combinations = 1;
2186 hw->wiphy->iface_combinations = &data->if_combination;
2187 data->if_combination = hwsim_if_comb[0];
2188 data->if_combination.num_different_channels = data->channels;
2190 hw->wiphy->iface_combinations = hwsim_if_comb;
2191 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2194 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2195 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2198 hw->offchannel_tx_hw_queue = 4;
2199 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2200 BIT(NL80211_IFTYPE_AP) |
2201 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2202 BIT(NL80211_IFTYPE_P2P_GO) |
2203 BIT(NL80211_IFTYPE_ADHOC) |
2204 BIT(NL80211_IFTYPE_MESH_POINT) |
2205 BIT(NL80211_IFTYPE_P2P_DEVICE);
2207 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2208 IEEE80211_HW_SIGNAL_DBM |
2209 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2210 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2211 IEEE80211_HW_AMPDU_AGGREGATION |
2212 IEEE80211_HW_WANT_MONITOR_VIF |
2213 IEEE80211_HW_QUEUE_CONTROL |
2214 IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
2216 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2218 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2219 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2220 WIPHY_FLAG_AP_UAPSD;
2221 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2223 /* ask mac80211 to reserve space for magic */
2224 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2225 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2226 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2228 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2229 sizeof(hwsim_channels_2ghz));
2230 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2231 sizeof(hwsim_channels_5ghz));
2232 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2234 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2235 struct ieee80211_supported_band *sband = &data->bands[band];
2237 case IEEE80211_BAND_2GHZ:
2238 sband->channels = data->channels_2ghz;
2239 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2240 sband->bitrates = data->rates;
2241 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2243 case IEEE80211_BAND_5GHZ:
2244 sband->channels = data->channels_5ghz;
2245 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2246 sband->bitrates = data->rates + 4;
2247 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2253 sband->ht_cap.ht_supported = true;
2254 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2255 IEEE80211_HT_CAP_GRN_FLD |
2256 IEEE80211_HT_CAP_SGI_40 |
2257 IEEE80211_HT_CAP_DSSSCCK40;
2258 sband->ht_cap.ampdu_factor = 0x3;
2259 sband->ht_cap.ampdu_density = 0x6;
2260 memset(&sband->ht_cap.mcs, 0,
2261 sizeof(sband->ht_cap.mcs));
2262 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2263 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2264 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2266 hw->wiphy->bands[band] = sband;
2268 sband->vht_cap.vht_supported = true;
2269 sband->vht_cap.cap =
2270 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2271 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2272 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2273 IEEE80211_VHT_CAP_RXLDPC |
2274 IEEE80211_VHT_CAP_SHORT_GI_80 |
2275 IEEE80211_VHT_CAP_SHORT_GI_160 |
2276 IEEE80211_VHT_CAP_TXSTBC |
2277 IEEE80211_VHT_CAP_RXSTBC_1 |
2278 IEEE80211_VHT_CAP_RXSTBC_2 |
2279 IEEE80211_VHT_CAP_RXSTBC_3 |
2280 IEEE80211_VHT_CAP_RXSTBC_4 |
2281 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2282 sband->vht_cap.vht_mcs.rx_mcs_map =
2283 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2284 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2285 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2286 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2287 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2288 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2289 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2290 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2291 sband->vht_cap.vht_mcs.tx_mcs_map =
2292 sband->vht_cap.vht_mcs.rx_mcs_map;
2295 /* By default all radios belong to the first group */
2297 mutex_init(&data->mutex);
2299 /* Enable frame retransmissions for lossy channels */
2301 hw->max_rate_tries = 11;
2303 err = ieee80211_register_hw(hw);
2305 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2310 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2312 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2313 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2314 debugfs_create_file("group", 0666, data->debugfs, data,
2316 if (data->channels == 1)
2317 debugfs_create_file("dfs_simulate_radar", 0222,
2319 data, &hwsim_simulate_radar);
2321 tasklet_hrtimer_init(&data->beacon_timer,
2322 mac80211_hwsim_beacon,
2323 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
2325 spin_lock_bh(&hwsim_radio_lock);
2326 list_add_tail(&data->list, &hwsim_radios);
2327 spin_unlock_bh(&hwsim_radio_lock);
2332 device_unregister(data->dev);
2334 ieee80211_free_hw(hw);
2339 static int __init init_mac80211_hwsim(void)
2343 if (radios < 1 || radios > 100)
2349 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2350 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2351 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2352 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2353 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2354 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2355 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2356 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2357 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2358 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2359 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2360 mac80211_hwsim_assign_vif_chanctx;
2361 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2362 mac80211_hwsim_unassign_vif_chanctx;
2364 spin_lock_init(&hwsim_radio_lock);
2365 INIT_LIST_HEAD(&hwsim_radios);
2367 err = platform_driver_register(&mac80211_hwsim_driver);
2371 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2372 if (IS_ERR(hwsim_class)) {
2373 err = PTR_ERR(hwsim_class);
2374 goto out_unregister_driver;
2377 for (i = 0; i < radios; i++) {
2378 err = mac80211_hwsim_create_radio(i);
2380 goto out_free_radios;
2383 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2384 if (hwsim_mon == NULL) {
2386 goto out_free_radios;
2390 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2393 goto out_free_radios;
2396 err = register_netdevice(hwsim_mon);
2403 err = hwsim_init_netlink();
2410 free_netdev(hwsim_mon);
2412 mac80211_hwsim_free();
2413 out_unregister_driver:
2414 platform_driver_unregister(&mac80211_hwsim_driver);
2417 module_init(init_mac80211_hwsim);
2419 static void __exit exit_mac80211_hwsim(void)
2421 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2423 hwsim_exit_netlink();
2425 mac80211_hwsim_free();
2426 unregister_netdev(hwsim_mon);
2427 platform_driver_unregister(&mac80211_hwsim_driver);
2429 module_exit(exit_mac80211_hwsim);