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_free(void)
1628 struct list_head tmplist
, *i
, *tmp
;
1629 struct mac80211_hwsim_data
*data
, *tmpdata
;
1631 INIT_LIST_HEAD(&tmplist
);
1633 spin_lock_bh(&hwsim_radio_lock
);
1634 list_for_each_safe(i
, tmp
, &hwsim_radios
)
1635 list_move(i
, &tmplist
);
1636 spin_unlock_bh(&hwsim_radio_lock
);
1638 list_for_each_entry_safe(data
, tmpdata
, &tmplist
, list
) {
1639 debugfs_remove_recursive(data
->debugfs
);
1640 ieee80211_unregister_hw(data
->hw
);
1641 device_release_driver(data
->dev
);
1642 device_unregister(data
->dev
);
1643 ieee80211_free_hw(data
->hw
);
1645 class_destroy(hwsim_class
);
1648 static struct platform_driver mac80211_hwsim_driver
= {
1650 .name
= "mac80211_hwsim",
1651 .owner
= THIS_MODULE
,
1655 static const struct net_device_ops hwsim_netdev_ops
= {
1656 .ndo_start_xmit
= hwsim_mon_xmit
,
1657 .ndo_change_mtu
= eth_change_mtu
,
1658 .ndo_set_mac_address
= eth_mac_addr
,
1659 .ndo_validate_addr
= eth_validate_addr
,
1662 static void hwsim_mon_setup(struct net_device
*dev
)
1664 dev
->netdev_ops
= &hwsim_netdev_ops
;
1665 dev
->destructor
= free_netdev
;
1667 dev
->tx_queue_len
= 0;
1668 dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1669 memset(dev
->dev_addr
, 0, ETH_ALEN
);
1670 dev
->dev_addr
[0] = 0x12;
1674 static void hwsim_send_ps_poll(void *dat
, u8
*mac
, struct ieee80211_vif
*vif
)
1676 struct mac80211_hwsim_data
*data
= dat
;
1677 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1678 struct sk_buff
*skb
;
1679 struct ieee80211_pspoll
*pspoll
;
1684 wiphy_debug(data
->hw
->wiphy
,
1685 "%s: send PS-Poll to %pM for aid %d\n",
1686 __func__
, vp
->bssid
, vp
->aid
);
1688 skb
= dev_alloc_skb(sizeof(*pspoll
));
1691 pspoll
= (void *) skb_put(skb
, sizeof(*pspoll
));
1692 pspoll
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
1693 IEEE80211_STYPE_PSPOLL
|
1695 pspoll
->aid
= cpu_to_le16(0xc000 | vp
->aid
);
1696 memcpy(pspoll
->bssid
, vp
->bssid
, ETH_ALEN
);
1697 memcpy(pspoll
->ta
, mac
, ETH_ALEN
);
1700 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1701 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1705 static void hwsim_send_nullfunc(struct mac80211_hwsim_data
*data
, u8
*mac
,
1706 struct ieee80211_vif
*vif
, int ps
)
1708 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1709 struct sk_buff
*skb
;
1710 struct ieee80211_hdr
*hdr
;
1715 wiphy_debug(data
->hw
->wiphy
,
1716 "%s: send data::nullfunc to %pM ps=%d\n",
1717 __func__
, vp
->bssid
, ps
);
1719 skb
= dev_alloc_skb(sizeof(*hdr
));
1722 hdr
= (void *) skb_put(skb
, sizeof(*hdr
) - ETH_ALEN
);
1723 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
1724 IEEE80211_STYPE_NULLFUNC
|
1725 (ps
? IEEE80211_FCTL_PM
: 0));
1726 hdr
->duration_id
= cpu_to_le16(0);
1727 memcpy(hdr
->addr1
, vp
->bssid
, ETH_ALEN
);
1728 memcpy(hdr
->addr2
, mac
, ETH_ALEN
);
1729 memcpy(hdr
->addr3
, vp
->bssid
, ETH_ALEN
);
1732 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1733 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1738 static void hwsim_send_nullfunc_ps(void *dat
, u8
*mac
,
1739 struct ieee80211_vif
*vif
)
1741 struct mac80211_hwsim_data
*data
= dat
;
1742 hwsim_send_nullfunc(data
, mac
, vif
, 1);
1746 static void hwsim_send_nullfunc_no_ps(void *dat
, u8
*mac
,
1747 struct ieee80211_vif
*vif
)
1749 struct mac80211_hwsim_data
*data
= dat
;
1750 hwsim_send_nullfunc(data
, mac
, vif
, 0);
1754 static int hwsim_fops_ps_read(void *dat
, u64
*val
)
1756 struct mac80211_hwsim_data
*data
= dat
;
1761 static int hwsim_fops_ps_write(void *dat
, u64 val
)
1763 struct mac80211_hwsim_data
*data
= dat
;
1764 enum ps_mode old_ps
;
1766 if (val
!= PS_DISABLED
&& val
!= PS_ENABLED
&& val
!= PS_AUTO_POLL
&&
1767 val
!= PS_MANUAL_POLL
)
1773 if (val
== PS_MANUAL_POLL
) {
1774 ieee80211_iterate_active_interfaces(data
->hw
,
1775 IEEE80211_IFACE_ITER_NORMAL
,
1776 hwsim_send_ps_poll
, data
);
1777 data
->ps_poll_pending
= true;
1778 } else if (old_ps
== PS_DISABLED
&& val
!= PS_DISABLED
) {
1779 ieee80211_iterate_active_interfaces(data
->hw
,
1780 IEEE80211_IFACE_ITER_NORMAL
,
1781 hwsim_send_nullfunc_ps
,
1783 } else if (old_ps
!= PS_DISABLED
&& val
== PS_DISABLED
) {
1784 ieee80211_iterate_active_interfaces(data
->hw
,
1785 IEEE80211_IFACE_ITER_NORMAL
,
1786 hwsim_send_nullfunc_no_ps
,
1793 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps
, hwsim_fops_ps_read
, hwsim_fops_ps_write
,
1796 static int hwsim_write_simulate_radar(void *dat
, u64 val
)
1798 struct mac80211_hwsim_data
*data
= dat
;
1800 ieee80211_radar_detected(data
->hw
);
1805 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar
, NULL
,
1806 hwsim_write_simulate_radar
, "%llu\n");
1808 static int hwsim_fops_group_read(void *dat
, u64
*val
)
1810 struct mac80211_hwsim_data
*data
= dat
;
1815 static int hwsim_fops_group_write(void *dat
, u64 val
)
1817 struct mac80211_hwsim_data
*data
= dat
;
1822 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group
,
1823 hwsim_fops_group_read
, hwsim_fops_group_write
,
1826 static struct mac80211_hwsim_data
*get_hwsim_data_ref_from_addr(
1827 struct mac_address
*addr
)
1829 struct mac80211_hwsim_data
*data
;
1830 bool _found
= false;
1832 spin_lock_bh(&hwsim_radio_lock
);
1833 list_for_each_entry(data
, &hwsim_radios
, list
) {
1834 if (memcmp(data
->addresses
[1].addr
, addr
,
1835 sizeof(struct mac_address
)) == 0) {
1840 spin_unlock_bh(&hwsim_radio_lock
);
1848 static int hwsim_tx_info_frame_received_nl(struct sk_buff
*skb_2
,
1849 struct genl_info
*info
)
1852 struct ieee80211_hdr
*hdr
;
1853 struct mac80211_hwsim_data
*data2
;
1854 struct ieee80211_tx_info
*txi
;
1855 struct hwsim_tx_rate
*tx_attempts
;
1856 unsigned long ret_skb_ptr
;
1857 struct sk_buff
*skb
, *tmp
;
1858 struct mac_address
*src
;
1859 unsigned int hwsim_flags
;
1864 if (!info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
] ||
1865 !info
->attrs
[HWSIM_ATTR_FLAGS
] ||
1866 !info
->attrs
[HWSIM_ATTR_COOKIE
] ||
1867 !info
->attrs
[HWSIM_ATTR_TX_INFO
])
1870 src
= (struct mac_address
*)nla_data(
1871 info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
]);
1872 hwsim_flags
= nla_get_u32(info
->attrs
[HWSIM_ATTR_FLAGS
]);
1874 ret_skb_ptr
= nla_get_u64(info
->attrs
[HWSIM_ATTR_COOKIE
]);
1876 data2
= get_hwsim_data_ref_from_addr(src
);
1881 /* look for the skb matching the cookie passed back from user */
1882 skb_queue_walk_safe(&data2
->pending
, skb
, tmp
) {
1883 if ((unsigned long)skb
== ret_skb_ptr
) {
1884 skb_unlink(skb
, &data2
->pending
);
1894 /* Tx info received because the frame was broadcasted on user space,
1895 so we get all the necessary info: tx attempts and skb control buff */
1897 tx_attempts
= (struct hwsim_tx_rate
*)nla_data(
1898 info
->attrs
[HWSIM_ATTR_TX_INFO
]);
1900 /* now send back TX status */
1901 txi
= IEEE80211_SKB_CB(skb
);
1903 ieee80211_tx_info_clear_status(txi
);
1905 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
1906 txi
->status
.rates
[i
].idx
= tx_attempts
[i
].idx
;
1907 txi
->status
.rates
[i
].count
= tx_attempts
[i
].count
;
1908 /*txi->status.rates[i].flags = 0;*/
1911 txi
->status
.ack_signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1913 if (!(hwsim_flags
& HWSIM_TX_CTL_NO_ACK
) &&
1914 (hwsim_flags
& HWSIM_TX_STAT_ACK
)) {
1915 if (skb
->len
>= 16) {
1916 hdr
= (struct ieee80211_hdr
*) skb
->data
;
1917 mac80211_hwsim_monitor_ack(txi
->rate_driver_data
[0],
1920 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
1922 ieee80211_tx_status_irqsafe(data2
->hw
, skb
);
1929 static int hwsim_cloned_frame_received_nl(struct sk_buff
*skb_2
,
1930 struct genl_info
*info
)
1933 struct mac80211_hwsim_data
*data2
;
1934 struct ieee80211_rx_status rx_status
;
1935 struct mac_address
*dst
;
1938 struct sk_buff
*skb
= NULL
;
1940 if (!info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
] ||
1941 !info
->attrs
[HWSIM_ATTR_FRAME
] ||
1942 !info
->attrs
[HWSIM_ATTR_RX_RATE
] ||
1943 !info
->attrs
[HWSIM_ATTR_SIGNAL
])
1946 dst
= (struct mac_address
*)nla_data(
1947 info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
]);
1949 frame_data_len
= nla_len(info
->attrs
[HWSIM_ATTR_FRAME
]);
1950 frame_data
= (char *)nla_data(info
->attrs
[HWSIM_ATTR_FRAME
]);
1952 /* Allocate new skb here */
1953 skb
= alloc_skb(frame_data_len
, GFP_KERNEL
);
1957 if (frame_data_len
<= IEEE80211_MAX_DATA_LEN
) {
1959 memcpy(skb_put(skb
, frame_data_len
), frame_data
,
1964 data2
= get_hwsim_data_ref_from_addr(dst
);
1969 /* check if radio is configured properly */
1971 if (data2
->idle
|| !data2
->started
)
1974 /*A frame is received from user space*/
1975 memset(&rx_status
, 0, sizeof(rx_status
));
1976 rx_status
.freq
= data2
->channel
->center_freq
;
1977 rx_status
.band
= data2
->channel
->band
;
1978 rx_status
.rate_idx
= nla_get_u32(info
->attrs
[HWSIM_ATTR_RX_RATE
]);
1979 rx_status
.signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1981 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
1982 ieee80211_rx_irqsafe(data2
->hw
, skb
);
1986 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1993 static int hwsim_register_received_nl(struct sk_buff
*skb_2
,
1994 struct genl_info
*info
)
1999 wmediumd_portid
= info
->snd_portid
;
2001 printk(KERN_DEBUG
"mac80211_hwsim: received a REGISTER, "
2002 "switching to wmediumd mode with pid %d\n", info
->snd_portid
);
2006 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
2010 /* Generic Netlink operations array */
2011 static const struct genl_ops hwsim_ops
[] = {
2013 .cmd
= HWSIM_CMD_REGISTER
,
2014 .policy
= hwsim_genl_policy
,
2015 .doit
= hwsim_register_received_nl
,
2016 .flags
= GENL_ADMIN_PERM
,
2019 .cmd
= HWSIM_CMD_FRAME
,
2020 .policy
= hwsim_genl_policy
,
2021 .doit
= hwsim_cloned_frame_received_nl
,
2024 .cmd
= HWSIM_CMD_TX_INFO_FRAME
,
2025 .policy
= hwsim_genl_policy
,
2026 .doit
= hwsim_tx_info_frame_received_nl
,
2030 static int mac80211_hwsim_netlink_notify(struct notifier_block
*nb
,
2031 unsigned long state
,
2034 struct netlink_notify
*notify
= _notify
;
2036 if (state
!= NETLINK_URELEASE
)
2039 if (notify
->portid
== wmediumd_portid
) {
2040 printk(KERN_INFO
"mac80211_hwsim: wmediumd released netlink"
2041 " socket, switching to perfect channel medium\n");
2042 wmediumd_portid
= 0;
2048 static struct notifier_block hwsim_netlink_notifier
= {
2049 .notifier_call
= mac80211_hwsim_netlink_notify
,
2052 static int hwsim_init_netlink(void)
2056 /* userspace test API hasn't been adjusted for multi-channel */
2060 printk(KERN_INFO
"mac80211_hwsim: initializing netlink\n");
2062 rc
= genl_register_family_with_ops(&hwsim_genl_family
, hwsim_ops
);
2066 rc
= netlink_register_notifier(&hwsim_netlink_notifier
);
2073 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
2077 static void hwsim_exit_netlink(void)
2079 /* userspace test API hasn't been adjusted for multi-channel */
2083 /* unregister the notifier */
2084 netlink_unregister_notifier(&hwsim_netlink_notifier
);
2085 /* unregister the family */
2086 genl_unregister_family(&hwsim_genl_family
);
2089 static const struct ieee80211_iface_limit hwsim_if_limits
[] = {
2090 { .max
= 1, .types
= BIT(NL80211_IFTYPE_ADHOC
) },
2091 { .max
= 2048, .types
= BIT(NL80211_IFTYPE_STATION
) |
2092 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2093 #ifdef CONFIG_MAC80211_MESH
2094 BIT(NL80211_IFTYPE_MESH_POINT
) |
2096 BIT(NL80211_IFTYPE_AP
) |
2097 BIT(NL80211_IFTYPE_P2P_GO
) },
2098 { .max
= 1, .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
) },
2101 static const struct ieee80211_iface_limit hwsim_if_dfs_limits
[] = {
2102 { .max
= 8, .types
= BIT(NL80211_IFTYPE_AP
) },
2105 static const struct ieee80211_iface_combination hwsim_if_comb
[] = {
2107 .limits
= hwsim_if_limits
,
2108 .n_limits
= ARRAY_SIZE(hwsim_if_limits
),
2109 .max_interfaces
= 2048,
2110 .num_different_channels
= 1,
2113 .limits
= hwsim_if_dfs_limits
,
2114 .n_limits
= ARRAY_SIZE(hwsim_if_dfs_limits
),
2115 .max_interfaces
= 8,
2116 .num_different_channels
= 1,
2117 .radar_detect_widths
= BIT(NL80211_CHAN_WIDTH_20_NOHT
) |
2118 BIT(NL80211_CHAN_WIDTH_20
) |
2119 BIT(NL80211_CHAN_WIDTH_40
) |
2120 BIT(NL80211_CHAN_WIDTH_80
) |
2121 BIT(NL80211_CHAN_WIDTH_160
),
2125 static int __init
init_mac80211_hwsim(void)
2129 struct mac80211_hwsim_data
*data
;
2130 struct ieee80211_hw
*hw
;
2131 enum ieee80211_band band
;
2132 const struct ieee80211_ops
*ops
;
2134 if (radios
< 1 || radios
> 100)
2140 mac80211_hwsim_mchan_ops
= mac80211_hwsim_ops
;
2141 mac80211_hwsim_mchan_ops
.hw_scan
= mac80211_hwsim_hw_scan
;
2142 mac80211_hwsim_mchan_ops
.cancel_hw_scan
= mac80211_hwsim_cancel_hw_scan
;
2143 mac80211_hwsim_mchan_ops
.sw_scan_start
= NULL
;
2144 mac80211_hwsim_mchan_ops
.sw_scan_complete
= NULL
;
2145 mac80211_hwsim_mchan_ops
.remain_on_channel
= mac80211_hwsim_roc
;
2146 mac80211_hwsim_mchan_ops
.cancel_remain_on_channel
= mac80211_hwsim_croc
;
2147 mac80211_hwsim_mchan_ops
.add_chanctx
= mac80211_hwsim_add_chanctx
;
2148 mac80211_hwsim_mchan_ops
.remove_chanctx
= mac80211_hwsim_remove_chanctx
;
2149 mac80211_hwsim_mchan_ops
.change_chanctx
= mac80211_hwsim_change_chanctx
;
2150 mac80211_hwsim_mchan_ops
.assign_vif_chanctx
=
2151 mac80211_hwsim_assign_vif_chanctx
;
2152 mac80211_hwsim_mchan_ops
.unassign_vif_chanctx
=
2153 mac80211_hwsim_unassign_vif_chanctx
;
2155 spin_lock_init(&hwsim_radio_lock
);
2156 INIT_LIST_HEAD(&hwsim_radios
);
2158 err
= platform_driver_register(&mac80211_hwsim_driver
);
2162 hwsim_class
= class_create(THIS_MODULE
, "mac80211_hwsim");
2163 if (IS_ERR(hwsim_class
)) {
2164 err
= PTR_ERR(hwsim_class
);
2165 goto failed_unregister_driver
;
2168 memset(addr
, 0, ETH_ALEN
);
2171 for (i
= 0; i
< radios
; i
++) {
2172 printk(KERN_DEBUG
"mac80211_hwsim: Initializing radio %d\n",
2174 ops
= &mac80211_hwsim_ops
;
2176 ops
= &mac80211_hwsim_mchan_ops
;
2177 hw
= ieee80211_alloc_hw(sizeof(*data
), ops
);
2179 printk(KERN_DEBUG
"mac80211_hwsim: ieee80211_alloc_hw "
2187 data
->dev
= device_create(hwsim_class
, NULL
, 0, hw
,
2189 if (IS_ERR(data
->dev
)) {
2191 "mac80211_hwsim: device_create failed (%ld)\n",
2192 PTR_ERR(data
->dev
));
2194 goto failed_drvdata
;
2196 data
->dev
->driver
= &mac80211_hwsim_driver
.driver
;
2197 err
= device_bind_driver(data
->dev
);
2200 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2205 skb_queue_head_init(&data
->pending
);
2207 SET_IEEE80211_DEV(hw
, data
->dev
);
2210 memcpy(data
->addresses
[0].addr
, addr
, ETH_ALEN
);
2211 memcpy(data
->addresses
[1].addr
, addr
, ETH_ALEN
);
2212 data
->addresses
[1].addr
[0] |= 0x40;
2213 hw
->wiphy
->n_addresses
= 2;
2214 hw
->wiphy
->addresses
= data
->addresses
;
2216 data
->channels
= channels
;
2218 if (data
->channels
> 1) {
2219 hw
->wiphy
->max_scan_ssids
= 255;
2220 hw
->wiphy
->max_scan_ie_len
= IEEE80211_MAX_DATA_LEN
;
2221 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2222 /* For channels > 1 DFS is not allowed */
2223 hw
->wiphy
->n_iface_combinations
= 1;
2224 hw
->wiphy
->iface_combinations
= &data
->if_combination
;
2225 data
->if_combination
= hwsim_if_comb
[0];
2226 data
->if_combination
.num_different_channels
=
2229 hw
->wiphy
->iface_combinations
= hwsim_if_comb
;
2230 hw
->wiphy
->n_iface_combinations
=
2231 ARRAY_SIZE(hwsim_if_comb
);
2234 INIT_DELAYED_WORK(&data
->roc_done
, hw_roc_done
);
2235 INIT_DELAYED_WORK(&data
->hw_scan
, hw_scan_work
);
2238 hw
->offchannel_tx_hw_queue
= 4;
2239 hw
->wiphy
->interface_modes
=
2240 BIT(NL80211_IFTYPE_STATION
) |
2241 BIT(NL80211_IFTYPE_AP
) |
2242 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2243 BIT(NL80211_IFTYPE_P2P_GO
) |
2244 BIT(NL80211_IFTYPE_ADHOC
) |
2245 BIT(NL80211_IFTYPE_MESH_POINT
) |
2246 BIT(NL80211_IFTYPE_P2P_DEVICE
);
2248 hw
->flags
= IEEE80211_HW_MFP_CAPABLE
|
2249 IEEE80211_HW_SIGNAL_DBM
|
2250 IEEE80211_HW_SUPPORTS_STATIC_SMPS
|
2251 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2252 IEEE80211_HW_AMPDU_AGGREGATION
|
2253 IEEE80211_HW_WANT_MONITOR_VIF
|
2254 IEEE80211_HW_QUEUE_CONTROL
|
2255 IEEE80211_HW_SUPPORTS_HT_CCK_RATES
;
2257 hw
->flags
|= IEEE80211_HW_SUPPORTS_RC_TABLE
;
2259 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
|
2260 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
|
2261 WIPHY_FLAG_AP_UAPSD
;
2262 hw
->wiphy
->features
|= NL80211_FEATURE_ACTIVE_MONITOR
;
2264 /* ask mac80211 to reserve space for magic */
2265 hw
->vif_data_size
= sizeof(struct hwsim_vif_priv
);
2266 hw
->sta_data_size
= sizeof(struct hwsim_sta_priv
);
2267 hw
->chanctx_data_size
= sizeof(struct hwsim_chanctx_priv
);
2269 memcpy(data
->channels_2ghz
, hwsim_channels_2ghz
,
2270 sizeof(hwsim_channels_2ghz
));
2271 memcpy(data
->channels_5ghz
, hwsim_channels_5ghz
,
2272 sizeof(hwsim_channels_5ghz
));
2273 memcpy(data
->rates
, hwsim_rates
, sizeof(hwsim_rates
));
2275 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
2276 struct ieee80211_supported_band
*sband
= &data
->bands
[band
];
2278 case IEEE80211_BAND_2GHZ
:
2279 sband
->channels
= data
->channels_2ghz
;
2281 ARRAY_SIZE(hwsim_channels_2ghz
);
2282 sband
->bitrates
= data
->rates
;
2283 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
);
2285 case IEEE80211_BAND_5GHZ
:
2286 sband
->channels
= data
->channels_5ghz
;
2288 ARRAY_SIZE(hwsim_channels_5ghz
);
2289 sband
->bitrates
= data
->rates
+ 4;
2290 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
) - 4;
2296 sband
->ht_cap
.ht_supported
= true;
2297 sband
->ht_cap
.cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
2298 IEEE80211_HT_CAP_GRN_FLD
|
2299 IEEE80211_HT_CAP_SGI_40
|
2300 IEEE80211_HT_CAP_DSSSCCK40
;
2301 sband
->ht_cap
.ampdu_factor
= 0x3;
2302 sband
->ht_cap
.ampdu_density
= 0x6;
2303 memset(&sband
->ht_cap
.mcs
, 0,
2304 sizeof(sband
->ht_cap
.mcs
));
2305 sband
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2306 sband
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2307 sband
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2309 hw
->wiphy
->bands
[band
] = sband
;
2311 sband
->vht_cap
.vht_supported
= true;
2312 sband
->vht_cap
.cap
=
2313 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454
|
2314 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ
|
2315 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ
|
2316 IEEE80211_VHT_CAP_RXLDPC
|
2317 IEEE80211_VHT_CAP_SHORT_GI_80
|
2318 IEEE80211_VHT_CAP_SHORT_GI_160
|
2319 IEEE80211_VHT_CAP_TXSTBC
|
2320 IEEE80211_VHT_CAP_RXSTBC_1
|
2321 IEEE80211_VHT_CAP_RXSTBC_2
|
2322 IEEE80211_VHT_CAP_RXSTBC_3
|
2323 IEEE80211_VHT_CAP_RXSTBC_4
|
2324 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK
;
2325 sband
->vht_cap
.vht_mcs
.rx_mcs_map
=
2326 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8
<< 0 |
2327 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 2 |
2328 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 4 |
2329 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 6 |
2330 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 8 |
2331 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 10 |
2332 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 12 |
2333 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 14);
2334 sband
->vht_cap
.vht_mcs
.tx_mcs_map
=
2335 sband
->vht_cap
.vht_mcs
.rx_mcs_map
;
2337 /* By default all radios are belonging to the first group */
2339 mutex_init(&data
->mutex
);
2341 /* Enable frame retransmissions for lossy channels */
2343 hw
->max_rate_tries
= 11;
2345 err
= ieee80211_register_hw(hw
);
2347 printk(KERN_DEBUG
"mac80211_hwsim: "
2348 "ieee80211_register_hw failed (%d)\n", err
);
2352 wiphy_debug(hw
->wiphy
, "hwaddr %pm registered\n",
2353 hw
->wiphy
->perm_addr
);
2355 data
->debugfs
= debugfs_create_dir("hwsim",
2356 hw
->wiphy
->debugfsdir
);
2357 debugfs_create_file("ps", 0666, data
->debugfs
, data
,
2359 debugfs_create_file("group", 0666, data
->debugfs
, data
,
2362 debugfs_create_file("dfs_simulate_radar", 0222,
2364 data
, &hwsim_simulate_radar
);
2366 tasklet_hrtimer_init(&data
->beacon_timer
,
2367 mac80211_hwsim_beacon
,
2368 CLOCK_MONOTONIC_RAW
, HRTIMER_MODE_ABS
);
2370 list_add_tail(&data
->list
, &hwsim_radios
);
2373 hwsim_mon
= alloc_netdev(0, "hwsim%d", hwsim_mon_setup
);
2374 if (hwsim_mon
== NULL
) {
2381 err
= dev_alloc_name(hwsim_mon
, hwsim_mon
->name
);
2386 err
= register_netdevice(hwsim_mon
);
2392 err
= hwsim_init_netlink();
2399 printk(KERN_DEBUG
"mac80211_hwsim: failed initializing netlink\n");
2404 free_netdev(hwsim_mon
);
2405 mac80211_hwsim_free();
2409 device_unregister(data
->dev
);
2411 ieee80211_free_hw(hw
);
2413 mac80211_hwsim_free();
2414 failed_unregister_driver
:
2415 platform_driver_unregister(&mac80211_hwsim_driver
);
2418 module_init(init_mac80211_hwsim
);
2420 static void __exit
exit_mac80211_hwsim(void)
2422 printk(KERN_DEBUG
"mac80211_hwsim: unregister radios\n");
2424 hwsim_exit_netlink();
2426 mac80211_hwsim_free();
2427 unregister_netdev(hwsim_mon
);
2428 platform_driver_unregister(&mac80211_hwsim_driver
);
2430 module_exit(exit_mac80211_hwsim
);