2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include "mac80211_hwsim.h"
34 #define WARN_QUEUE 100
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39 MODULE_LICENSE("GPL");
41 static u32 wmediumd_portid
;
43 static int radios
= 2;
44 module_param(radios
, int, 0444);
45 MODULE_PARM_DESC(radios
, "Number of simulated radios");
47 static int channels
= 1;
48 module_param(channels
, int, 0444);
49 MODULE_PARM_DESC(channels
, "Number of concurrent channels");
52 * enum hwsim_regtest - the type of regulatory tests we offer
54 * These are the different values you can use for the regtest
55 * module parameter. This is useful to help test world roaming
56 * and the driver regulatory_hint() call and combinations of these.
57 * If you want to do specific alpha2 regulatory domain tests simply
58 * use the userspace regulatory request as that will be respected as
59 * well without the need of this module parameter. This is designed
60 * only for testing the driver regulatory request, world roaming
61 * and all possible combinations.
63 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
64 * this is the default value.
65 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
66 * hint, only one driver regulatory hint will be sent as such the
67 * secondary radios are expected to follow.
68 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
69 * request with all radios reporting the same regulatory domain.
70 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
71 * different regulatory domains requests. Expected behaviour is for
72 * an intersection to occur but each device will still use their
73 * respective regulatory requested domains. Subsequent radios will
74 * use the resulting intersection.
75 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
76 * this by using a custom beacon-capable regulatory domain for the first
77 * radio. All other device world roam.
78 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
79 * domain requests. All radios will adhere to this custom world regulatory
81 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
82 * domain requests. The first radio will adhere to the first custom world
83 * regulatory domain, the second one to the second custom world regulatory
84 * domain. All other devices will world roam.
85 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
86 * settings, only the first radio will send a regulatory domain request
87 * and use strict settings. The rest of the radios are expected to follow.
88 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
89 * settings. All radios will adhere to this.
90 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
91 * domain settings, combined with secondary driver regulatory domain
92 * settings. The first radio will get a strict regulatory domain setting
93 * using the first driver regulatory request and the second radio will use
94 * non-strict settings using the second driver regulatory request. All
95 * other devices should follow the intersection created between the
97 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
98 * at least 6 radios for a complete test. We will test in this order:
99 * 1 - driver custom world regulatory domain
100 * 2 - second custom world regulatory domain
101 * 3 - first driver regulatory domain request
102 * 4 - second driver regulatory domain request
103 * 5 - strict regulatory domain settings using the third driver regulatory
105 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
106 * regulatory requests.
109 HWSIM_REGTEST_DISABLED
= 0,
110 HWSIM_REGTEST_DRIVER_REG_FOLLOW
= 1,
111 HWSIM_REGTEST_DRIVER_REG_ALL
= 2,
112 HWSIM_REGTEST_DIFF_COUNTRY
= 3,
113 HWSIM_REGTEST_WORLD_ROAM
= 4,
114 HWSIM_REGTEST_CUSTOM_WORLD
= 5,
115 HWSIM_REGTEST_CUSTOM_WORLD_2
= 6,
116 HWSIM_REGTEST_STRICT_FOLLOW
= 7,
117 HWSIM_REGTEST_STRICT_ALL
= 8,
118 HWSIM_REGTEST_STRICT_AND_DRIVER_REG
= 9,
119 HWSIM_REGTEST_ALL
= 10,
122 /* Set to one of the HWSIM_REGTEST_* values above */
123 static int regtest
= HWSIM_REGTEST_DISABLED
;
124 module_param(regtest
, int, 0444);
125 MODULE_PARM_DESC(regtest
, "The type of regulatory test we want to run");
127 static const char *hwsim_alpha2s
[] = {
136 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01
= {
140 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
141 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
142 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
143 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
147 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02
= {
151 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
152 REG_RULE(5725-10, 5850+10, 40, 0, 30,
153 NL80211_RRF_PASSIVE_SCAN
| NL80211_RRF_NO_IBSS
),
157 struct hwsim_vif_priv
{
164 #define HWSIM_VIF_MAGIC 0x69537748
166 static inline void hwsim_check_magic(struct ieee80211_vif
*vif
)
168 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
169 WARN(vp
->magic
!= HWSIM_VIF_MAGIC
,
170 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
171 vif
, vp
->magic
, vif
->addr
, vif
->type
, vif
->p2p
);
174 static inline void hwsim_set_magic(struct ieee80211_vif
*vif
)
176 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
177 vp
->magic
= HWSIM_VIF_MAGIC
;
180 static inline void hwsim_clear_magic(struct ieee80211_vif
*vif
)
182 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
186 struct hwsim_sta_priv
{
190 #define HWSIM_STA_MAGIC 0x6d537749
192 static inline void hwsim_check_sta_magic(struct ieee80211_sta
*sta
)
194 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
195 WARN_ON(sp
->magic
!= HWSIM_STA_MAGIC
);
198 static inline void hwsim_set_sta_magic(struct ieee80211_sta
*sta
)
200 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
201 sp
->magic
= HWSIM_STA_MAGIC
;
204 static inline void hwsim_clear_sta_magic(struct ieee80211_sta
*sta
)
206 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
210 struct hwsim_chanctx_priv
{
214 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
216 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf
*c
)
218 struct hwsim_chanctx_priv
*cp
= (void *)c
->drv_priv
;
219 WARN_ON(cp
->magic
!= HWSIM_CHANCTX_MAGIC
);
222 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf
*c
)
224 struct hwsim_chanctx_priv
*cp
= (void *)c
->drv_priv
;
225 cp
->magic
= HWSIM_CHANCTX_MAGIC
;
228 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf
*c
)
230 struct hwsim_chanctx_priv
*cp
= (void *)c
->drv_priv
;
234 static struct class *hwsim_class
;
236 static struct net_device
*hwsim_mon
; /* global monitor netdev */
238 #define CHAN2G(_freq) { \
239 .band = IEEE80211_BAND_2GHZ, \
240 .center_freq = (_freq), \
241 .hw_value = (_freq), \
245 #define CHAN5G(_freq) { \
246 .band = IEEE80211_BAND_5GHZ, \
247 .center_freq = (_freq), \
248 .hw_value = (_freq), \
252 static const struct ieee80211_channel hwsim_channels_2ghz
[] = {
253 CHAN2G(2412), /* Channel 1 */
254 CHAN2G(2417), /* Channel 2 */
255 CHAN2G(2422), /* Channel 3 */
256 CHAN2G(2427), /* Channel 4 */
257 CHAN2G(2432), /* Channel 5 */
258 CHAN2G(2437), /* Channel 6 */
259 CHAN2G(2442), /* Channel 7 */
260 CHAN2G(2447), /* Channel 8 */
261 CHAN2G(2452), /* Channel 9 */
262 CHAN2G(2457), /* Channel 10 */
263 CHAN2G(2462), /* Channel 11 */
264 CHAN2G(2467), /* Channel 12 */
265 CHAN2G(2472), /* Channel 13 */
266 CHAN2G(2484), /* Channel 14 */
269 static const struct ieee80211_channel hwsim_channels_5ghz
[] = {
270 CHAN5G(5180), /* Channel 36 */
271 CHAN5G(5200), /* Channel 40 */
272 CHAN5G(5220), /* Channel 44 */
273 CHAN5G(5240), /* Channel 48 */
275 CHAN5G(5260), /* Channel 52 */
276 CHAN5G(5280), /* Channel 56 */
277 CHAN5G(5300), /* Channel 60 */
278 CHAN5G(5320), /* Channel 64 */
280 CHAN5G(5500), /* Channel 100 */
281 CHAN5G(5520), /* Channel 104 */
282 CHAN5G(5540), /* Channel 108 */
283 CHAN5G(5560), /* Channel 112 */
284 CHAN5G(5580), /* Channel 116 */
285 CHAN5G(5600), /* Channel 120 */
286 CHAN5G(5620), /* Channel 124 */
287 CHAN5G(5640), /* Channel 128 */
288 CHAN5G(5660), /* Channel 132 */
289 CHAN5G(5680), /* Channel 136 */
290 CHAN5G(5700), /* Channel 140 */
292 CHAN5G(5745), /* Channel 149 */
293 CHAN5G(5765), /* Channel 153 */
294 CHAN5G(5785), /* Channel 157 */
295 CHAN5G(5805), /* Channel 161 */
296 CHAN5G(5825), /* Channel 165 */
299 static const struct ieee80211_rate hwsim_rates
[] = {
301 { .bitrate
= 20, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
302 { .bitrate
= 55, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
303 { .bitrate
= 110, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
314 static spinlock_t hwsim_radio_lock
;
315 static struct list_head hwsim_radios
;
317 struct mac80211_hwsim_data
{
318 struct list_head list
;
319 struct ieee80211_hw
*hw
;
321 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
322 struct ieee80211_channel channels_2ghz
[ARRAY_SIZE(hwsim_channels_2ghz
)];
323 struct ieee80211_channel channels_5ghz
[ARRAY_SIZE(hwsim_channels_5ghz
)];
324 struct ieee80211_rate rates
[ARRAY_SIZE(hwsim_rates
)];
326 struct mac_address addresses
[2];
328 struct ieee80211_channel
*tmp_chan
;
329 struct delayed_work roc_done
;
330 struct delayed_work hw_scan
;
331 struct cfg80211_scan_request
*hw_scan_request
;
332 struct ieee80211_vif
*hw_scan_vif
;
335 struct ieee80211_channel
*channel
;
336 unsigned long beacon_int
; /* in jiffies unit */
337 unsigned int rx_filter
;
338 bool started
, idle
, scanning
;
340 struct timer_list beacon_timer
;
342 PS_DISABLED
, PS_ENABLED
, PS_AUTO_POLL
, PS_MANUAL_POLL
344 bool ps_poll_pending
;
345 struct dentry
*debugfs
;
346 struct dentry
*debugfs_ps
;
348 struct sk_buff_head pending
; /* packets pending */
350 * Only radios in the same group can communicate together (the
351 * channel has to match too). Each bit represents a group. A
352 * radio can be in more then one group.
355 struct dentry
*debugfs_group
;
359 /* difference between this hw's clock and the real clock, in usecs */
364 struct hwsim_radiotap_hdr
{
365 struct ieee80211_radiotap_header hdr
;
373 /* MAC80211_HWSIM netlinf family */
374 static struct genl_family hwsim_genl_family
= {
375 .id
= GENL_ID_GENERATE
,
377 .name
= "MAC80211_HWSIM",
379 .maxattr
= HWSIM_ATTR_MAX
,
382 /* MAC80211_HWSIM netlink policy */
384 static struct nla_policy hwsim_genl_policy
[HWSIM_ATTR_MAX
+ 1] = {
385 [HWSIM_ATTR_ADDR_RECEIVER
] = { .type
= NLA_UNSPEC
,
386 .len
= 6*sizeof(u8
) },
387 [HWSIM_ATTR_ADDR_TRANSMITTER
] = { .type
= NLA_UNSPEC
,
388 .len
= 6*sizeof(u8
) },
389 [HWSIM_ATTR_FRAME
] = { .type
= NLA_BINARY
,
390 .len
= IEEE80211_MAX_DATA_LEN
},
391 [HWSIM_ATTR_FLAGS
] = { .type
= NLA_U32
},
392 [HWSIM_ATTR_RX_RATE
] = { .type
= NLA_U32
},
393 [HWSIM_ATTR_SIGNAL
] = { .type
= NLA_U32
},
394 [HWSIM_ATTR_TX_INFO
] = { .type
= NLA_UNSPEC
,
395 .len
= IEEE80211_TX_MAX_RATES
*sizeof(
396 struct hwsim_tx_rate
)},
397 [HWSIM_ATTR_COOKIE
] = { .type
= NLA_U64
},
400 static netdev_tx_t
hwsim_mon_xmit(struct sk_buff
*skb
,
401 struct net_device
*dev
)
403 /* TODO: allow packet injection */
408 static __le64
__mac80211_hwsim_get_tsf(struct mac80211_hwsim_data
*data
)
410 struct timeval tv
= ktime_to_timeval(ktime_get_real());
411 u64 now
= tv
.tv_sec
* USEC_PER_SEC
+ tv
.tv_usec
;
412 return cpu_to_le64(now
+ data
->tsf_offset
);
415 static u64
mac80211_hwsim_get_tsf(struct ieee80211_hw
*hw
,
416 struct ieee80211_vif
*vif
)
418 struct mac80211_hwsim_data
*data
= hw
->priv
;
419 return le64_to_cpu(__mac80211_hwsim_get_tsf(data
));
422 static void mac80211_hwsim_set_tsf(struct ieee80211_hw
*hw
,
423 struct ieee80211_vif
*vif
, u64 tsf
)
425 struct mac80211_hwsim_data
*data
= hw
->priv
;
426 struct timeval tv
= ktime_to_timeval(ktime_get_real());
427 u64 now
= tv
.tv_sec
* USEC_PER_SEC
+ tv
.tv_usec
;
428 data
->tsf_offset
= tsf
- now
;
431 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw
*hw
,
432 struct sk_buff
*tx_skb
,
433 struct ieee80211_channel
*chan
)
435 struct mac80211_hwsim_data
*data
= hw
->priv
;
437 struct hwsim_radiotap_hdr
*hdr
;
439 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(tx_skb
);
440 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
442 if (!netif_running(hwsim_mon
))
445 skb
= skb_copy_expand(tx_skb
, sizeof(*hdr
), 0, GFP_ATOMIC
);
449 hdr
= (struct hwsim_radiotap_hdr
*) skb_push(skb
, sizeof(*hdr
));
450 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
452 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
453 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
454 (1 << IEEE80211_RADIOTAP_RATE
) |
455 (1 << IEEE80211_RADIOTAP_TSFT
) |
456 (1 << IEEE80211_RADIOTAP_CHANNEL
));
457 hdr
->rt_tsft
= __mac80211_hwsim_get_tsf(data
);
459 hdr
->rt_rate
= txrate
->bitrate
/ 5;
460 hdr
->rt_channel
= cpu_to_le16(chan
->center_freq
);
461 flags
= IEEE80211_CHAN_2GHZ
;
462 if (txrate
->flags
& IEEE80211_RATE_ERP_G
)
463 flags
|= IEEE80211_CHAN_OFDM
;
465 flags
|= IEEE80211_CHAN_CCK
;
466 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
468 skb
->dev
= hwsim_mon
;
469 skb_set_mac_header(skb
, 0);
470 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
471 skb
->pkt_type
= PACKET_OTHERHOST
;
472 skb
->protocol
= htons(ETH_P_802_2
);
473 memset(skb
->cb
, 0, sizeof(skb
->cb
));
478 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel
*chan
,
482 struct hwsim_radiotap_hdr
*hdr
;
484 struct ieee80211_hdr
*hdr11
;
486 if (!netif_running(hwsim_mon
))
489 skb
= dev_alloc_skb(100);
493 hdr
= (struct hwsim_radiotap_hdr
*) skb_put(skb
, sizeof(*hdr
));
494 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
496 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
497 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
498 (1 << IEEE80211_RADIOTAP_CHANNEL
));
501 hdr
->rt_channel
= cpu_to_le16(chan
->center_freq
);
502 flags
= IEEE80211_CHAN_2GHZ
;
503 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
505 hdr11
= (struct ieee80211_hdr
*) skb_put(skb
, 10);
506 hdr11
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
507 IEEE80211_STYPE_ACK
);
508 hdr11
->duration_id
= cpu_to_le16(0);
509 memcpy(hdr11
->addr1
, addr
, ETH_ALEN
);
511 skb
->dev
= hwsim_mon
;
512 skb_set_mac_header(skb
, 0);
513 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
514 skb
->pkt_type
= PACKET_OTHERHOST
;
515 skb
->protocol
= htons(ETH_P_802_2
);
516 memset(skb
->cb
, 0, sizeof(skb
->cb
));
521 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data
*data
,
530 /* TODO: accept (some) Beacons by default and other frames only
531 * if pending PS-Poll has been sent */
534 /* Allow unicast frames to own address if there is a pending
536 if (data
->ps_poll_pending
&&
537 memcmp(data
->hw
->wiphy
->perm_addr
, skb
->data
+ 4,
539 data
->ps_poll_pending
= false;
549 struct mac80211_hwsim_addr_match_data
{
554 static void mac80211_hwsim_addr_iter(void *data
, u8
*mac
,
555 struct ieee80211_vif
*vif
)
557 struct mac80211_hwsim_addr_match_data
*md
= data
;
558 if (memcmp(mac
, md
->addr
, ETH_ALEN
) == 0)
563 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data
*data
,
566 struct mac80211_hwsim_addr_match_data md
;
568 if (memcmp(addr
, data
->hw
->wiphy
->perm_addr
, ETH_ALEN
) == 0)
573 ieee80211_iterate_active_interfaces_atomic(data
->hw
,
574 mac80211_hwsim_addr_iter
,
580 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw
*hw
,
581 struct sk_buff
*my_skb
,
585 struct mac80211_hwsim_data
*data
= hw
->priv
;
586 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) my_skb
->data
;
587 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(my_skb
);
589 unsigned int hwsim_flags
= 0;
591 struct hwsim_tx_rate tx_attempts
[IEEE80211_TX_MAX_RATES
];
593 if (data
->ps
!= PS_DISABLED
)
594 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
595 /* If the queue contains MAX_QUEUE skb's drop some */
596 if (skb_queue_len(&data
->pending
) >= MAX_QUEUE
) {
597 /* Droping until WARN_QUEUE level */
598 while (skb_queue_len(&data
->pending
) >= WARN_QUEUE
)
599 skb_dequeue(&data
->pending
);
602 skb
= genlmsg_new(GENLMSG_DEFAULT_SIZE
, GFP_ATOMIC
);
604 goto nla_put_failure
;
606 msg_head
= genlmsg_put(skb
, 0, 0, &hwsim_genl_family
, 0,
608 if (msg_head
== NULL
) {
609 printk(KERN_DEBUG
"mac80211_hwsim: problem with msg_head\n");
610 goto nla_put_failure
;
613 if (nla_put(skb
, HWSIM_ATTR_ADDR_TRANSMITTER
,
614 sizeof(struct mac_address
), data
->addresses
[1].addr
))
615 goto nla_put_failure
;
617 /* We get the skb->data */
618 if (nla_put(skb
, HWSIM_ATTR_FRAME
, my_skb
->len
, my_skb
->data
))
619 goto nla_put_failure
;
621 /* We get the flags for this transmission, and we translate them to
624 if (info
->flags
& IEEE80211_TX_CTL_REQ_TX_STATUS
)
625 hwsim_flags
|= HWSIM_TX_CTL_REQ_TX_STATUS
;
627 if (info
->flags
& IEEE80211_TX_CTL_NO_ACK
)
628 hwsim_flags
|= HWSIM_TX_CTL_NO_ACK
;
630 if (nla_put_u32(skb
, HWSIM_ATTR_FLAGS
, hwsim_flags
))
631 goto nla_put_failure
;
633 /* We get the tx control (rate and retries) info*/
635 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
636 tx_attempts
[i
].idx
= info
->status
.rates
[i
].idx
;
637 tx_attempts
[i
].count
= info
->status
.rates
[i
].count
;
640 if (nla_put(skb
, HWSIM_ATTR_TX_INFO
,
641 sizeof(struct hwsim_tx_rate
)*IEEE80211_TX_MAX_RATES
,
643 goto nla_put_failure
;
645 /* We create a cookie to identify this skb */
646 if (nla_put_u64(skb
, HWSIM_ATTR_COOKIE
, (unsigned long) my_skb
))
647 goto nla_put_failure
;
649 genlmsg_end(skb
, msg_head
);
650 genlmsg_unicast(&init_net
, skb
, dst_portid
);
652 /* Enqueue the packet */
653 skb_queue_tail(&data
->pending
, my_skb
);
657 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
660 static bool hwsim_chans_compat(struct ieee80211_channel
*c1
,
661 struct ieee80211_channel
*c2
)
666 return c1
->center_freq
== c2
->center_freq
;
669 struct tx_iter_data
{
670 struct ieee80211_channel
*channel
;
674 static void mac80211_hwsim_tx_iter(void *_data
, u8
*addr
,
675 struct ieee80211_vif
*vif
)
677 struct tx_iter_data
*data
= _data
;
679 if (!vif
->chanctx_conf
)
682 if (!hwsim_chans_compat(data
->channel
,
683 rcu_dereference(vif
->chanctx_conf
)->channel
))
686 data
->receive
= true;
689 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw
*hw
,
691 struct ieee80211_channel
*chan
)
693 struct mac80211_hwsim_data
*data
= hw
->priv
, *data2
;
695 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
696 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
697 struct ieee80211_rx_status rx_status
;
698 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
700 memset(&rx_status
, 0, sizeof(rx_status
));
701 rx_status
.flag
|= RX_FLAG_MACTIME_MPDU
;
702 rx_status
.freq
= chan
->center_freq
;
703 rx_status
.band
= chan
->band
;
704 rx_status
.rate_idx
= info
->control
.rates
[0].idx
;
705 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
706 rx_status
.flag
|= RX_FLAG_HT
;
707 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_40_MHZ_WIDTH
)
708 rx_status
.flag
|= RX_FLAG_40MHZ
;
709 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_SHORT_GI
)
710 rx_status
.flag
|= RX_FLAG_SHORT_GI
;
711 /* TODO: simulate real signal strength (and optional packet loss) */
712 rx_status
.signal
= data
->power_level
- 50;
714 if (data
->ps
!= PS_DISABLED
)
715 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
717 /* release the skb's source info */
724 /* Copy skb to all enabled radios that are on the current frequency */
725 spin_lock(&hwsim_radio_lock
);
726 list_for_each_entry(data2
, &hwsim_radios
, list
) {
727 struct sk_buff
*nskb
;
728 struct ieee80211_mgmt
*mgmt
;
729 struct tx_iter_data tx_iter_data
= {
737 if (!data2
->started
|| (data2
->idle
&& !data2
->tmp_chan
) ||
738 !hwsim_ps_rx_ok(data2
, skb
))
741 if (!(data
->group
& data2
->group
))
744 if (!hwsim_chans_compat(chan
, data2
->tmp_chan
) &&
745 !hwsim_chans_compat(chan
, data2
->channel
)) {
746 ieee80211_iterate_active_interfaces_atomic(
747 data2
->hw
, mac80211_hwsim_tx_iter
,
749 if (!tx_iter_data
.receive
)
753 nskb
= skb_copy(skb
, GFP_ATOMIC
);
757 if (mac80211_hwsim_addr_match(data2
, hdr
->addr1
))
760 /* set bcn timestamp relative to receiver mactime */
762 le64_to_cpu(__mac80211_hwsim_get_tsf(data2
));
763 mgmt
= (struct ieee80211_mgmt
*) nskb
->data
;
764 if (ieee80211_is_beacon(mgmt
->frame_control
) ||
765 ieee80211_is_probe_resp(mgmt
->frame_control
))
766 mgmt
->u
.beacon
.timestamp
= cpu_to_le64(
768 (data
->tsf_offset
- data2
->tsf_offset
) +
769 24 * 8 * 10 / txrate
->bitrate
);
771 memcpy(IEEE80211_SKB_RXCB(nskb
), &rx_status
, sizeof(rx_status
));
772 ieee80211_rx_irqsafe(data2
->hw
, nskb
);
774 spin_unlock(&hwsim_radio_lock
);
779 static void mac80211_hwsim_tx(struct ieee80211_hw
*hw
,
780 struct ieee80211_tx_control
*control
,
783 struct mac80211_hwsim_data
*data
= hw
->priv
;
784 struct ieee80211_tx_info
*txi
= IEEE80211_SKB_CB(skb
);
785 struct ieee80211_chanctx_conf
*chanctx_conf
;
786 struct ieee80211_channel
*channel
;
790 if (WARN_ON(skb
->len
< 10)) {
791 /* Should not happen; just a sanity check for addr1 use */
797 channel
= data
->channel
;
798 } else if (txi
->hw_queue
== 4) {
799 channel
= data
->tmp_chan
;
801 chanctx_conf
= rcu_dereference(txi
->control
.vif
->chanctx_conf
);
803 channel
= chanctx_conf
->channel
;
808 if (WARN(!channel
, "TX w/o channel - queue = %d\n", txi
->hw_queue
)) {
813 if (data
->idle
&& !data
->tmp_chan
) {
814 wiphy_debug(hw
->wiphy
, "Trying to TX when idle - reject\n");
819 if (txi
->control
.vif
)
820 hwsim_check_magic(txi
->control
.vif
);
822 hwsim_check_sta_magic(control
->sta
);
824 txi
->rate_driver_data
[0] = channel
;
826 mac80211_hwsim_monitor_rx(hw
, skb
, channel
);
828 /* wmediumd mode check */
829 _portid
= ACCESS_ONCE(wmediumd_portid
);
832 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _portid
);
834 /* NO wmediumd detected, perfect medium simulation */
835 ack
= mac80211_hwsim_tx_frame_no_nl(hw
, skb
, channel
);
837 if (ack
&& skb
->len
>= 16) {
838 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
839 mac80211_hwsim_monitor_ack(channel
, hdr
->addr2
);
842 ieee80211_tx_info_clear_status(txi
);
844 /* frame was transmitted at most favorable rate at first attempt */
845 txi
->control
.rates
[0].count
= 1;
846 txi
->control
.rates
[1].idx
= -1;
848 if (!(txi
->flags
& IEEE80211_TX_CTL_NO_ACK
) && ack
)
849 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
850 ieee80211_tx_status_irqsafe(hw
, skb
);
854 static int mac80211_hwsim_start(struct ieee80211_hw
*hw
)
856 struct mac80211_hwsim_data
*data
= hw
->priv
;
857 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
858 data
->started
= true;
863 static void mac80211_hwsim_stop(struct ieee80211_hw
*hw
)
865 struct mac80211_hwsim_data
*data
= hw
->priv
;
866 data
->started
= false;
867 del_timer(&data
->beacon_timer
);
868 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
872 static int mac80211_hwsim_add_interface(struct ieee80211_hw
*hw
,
873 struct ieee80211_vif
*vif
)
875 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
876 __func__
, ieee80211_vif_type_p2p(vif
),
878 hwsim_set_magic(vif
);
881 vif
->hw_queue
[IEEE80211_AC_VO
] = 0;
882 vif
->hw_queue
[IEEE80211_AC_VI
] = 1;
883 vif
->hw_queue
[IEEE80211_AC_BE
] = 2;
884 vif
->hw_queue
[IEEE80211_AC_BK
] = 3;
890 static int mac80211_hwsim_change_interface(struct ieee80211_hw
*hw
,
891 struct ieee80211_vif
*vif
,
892 enum nl80211_iftype newtype
,
895 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
896 wiphy_debug(hw
->wiphy
,
897 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
898 __func__
, ieee80211_vif_type_p2p(vif
),
900 hwsim_check_magic(vif
);
905 static void mac80211_hwsim_remove_interface(
906 struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
908 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
909 __func__
, ieee80211_vif_type_p2p(vif
),
911 hwsim_check_magic(vif
);
912 hwsim_clear_magic(vif
);
915 static void mac80211_hwsim_tx_frame(struct ieee80211_hw
*hw
,
917 struct ieee80211_channel
*chan
)
919 u32 _pid
= ACCESS_ONCE(wmediumd_portid
);
921 mac80211_hwsim_monitor_rx(hw
, skb
, chan
);
924 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _pid
);
926 mac80211_hwsim_tx_frame_no_nl(hw
, skb
, chan
);
930 static void mac80211_hwsim_beacon_tx(void *arg
, u8
*mac
,
931 struct ieee80211_vif
*vif
)
933 struct ieee80211_hw
*hw
= arg
;
936 hwsim_check_magic(vif
);
938 if (vif
->type
!= NL80211_IFTYPE_AP
&&
939 vif
->type
!= NL80211_IFTYPE_MESH_POINT
&&
940 vif
->type
!= NL80211_IFTYPE_ADHOC
)
943 skb
= ieee80211_beacon_get(hw
, vif
);
947 mac80211_hwsim_tx_frame(hw
, skb
,
948 rcu_dereference(vif
->chanctx_conf
)->channel
);
952 static void mac80211_hwsim_beacon(unsigned long arg
)
954 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*) arg
;
955 struct mac80211_hwsim_data
*data
= hw
->priv
;
960 ieee80211_iterate_active_interfaces_atomic(
961 hw
, mac80211_hwsim_beacon_tx
, hw
);
963 data
->beacon_timer
.expires
= jiffies
+ data
->beacon_int
;
964 add_timer(&data
->beacon_timer
);
967 static const char *hwsim_chantypes
[] = {
968 [NL80211_CHAN_NO_HT
] = "noht",
969 [NL80211_CHAN_HT20
] = "ht20",
970 [NL80211_CHAN_HT40MINUS
] = "ht40-",
971 [NL80211_CHAN_HT40PLUS
] = "ht40+",
974 static int mac80211_hwsim_config(struct ieee80211_hw
*hw
, u32 changed
)
976 struct mac80211_hwsim_data
*data
= hw
->priv
;
977 struct ieee80211_conf
*conf
= &hw
->conf
;
978 static const char *smps_modes
[IEEE80211_SMPS_NUM_MODES
] = {
979 [IEEE80211_SMPS_AUTOMATIC
] = "auto",
980 [IEEE80211_SMPS_OFF
] = "off",
981 [IEEE80211_SMPS_STATIC
] = "static",
982 [IEEE80211_SMPS_DYNAMIC
] = "dynamic",
985 wiphy_debug(hw
->wiphy
,
986 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
988 conf
->channel
? conf
->channel
->center_freq
: 0,
989 hwsim_chantypes
[conf
->channel_type
],
990 !!(conf
->flags
& IEEE80211_CONF_IDLE
),
991 !!(conf
->flags
& IEEE80211_CONF_PS
),
992 smps_modes
[conf
->smps_mode
]);
994 data
->idle
= !!(conf
->flags
& IEEE80211_CONF_IDLE
);
996 data
->channel
= conf
->channel
;
998 WARN_ON(data
->channel
&& channels
> 1);
1000 data
->power_level
= conf
->power_level
;
1001 if (!data
->started
|| !data
->beacon_int
)
1002 del_timer(&data
->beacon_timer
);
1004 mod_timer(&data
->beacon_timer
, jiffies
+ data
->beacon_int
);
1010 static void mac80211_hwsim_configure_filter(struct ieee80211_hw
*hw
,
1011 unsigned int changed_flags
,
1012 unsigned int *total_flags
,u64 multicast
)
1014 struct mac80211_hwsim_data
*data
= hw
->priv
;
1016 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
1018 data
->rx_filter
= 0;
1019 if (*total_flags
& FIF_PROMISC_IN_BSS
)
1020 data
->rx_filter
|= FIF_PROMISC_IN_BSS
;
1021 if (*total_flags
& FIF_ALLMULTI
)
1022 data
->rx_filter
|= FIF_ALLMULTI
;
1024 *total_flags
= data
->rx_filter
;
1027 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw
*hw
,
1028 struct ieee80211_vif
*vif
,
1029 struct ieee80211_bss_conf
*info
,
1032 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1033 struct mac80211_hwsim_data
*data
= hw
->priv
;
1035 hwsim_check_magic(vif
);
1037 wiphy_debug(hw
->wiphy
, "%s(changed=0x%x)\n", __func__
, changed
);
1039 if (changed
& BSS_CHANGED_BSSID
) {
1040 wiphy_debug(hw
->wiphy
, "%s: BSSID changed: %pM\n",
1041 __func__
, info
->bssid
);
1042 memcpy(vp
->bssid
, info
->bssid
, ETH_ALEN
);
1045 if (changed
& BSS_CHANGED_ASSOC
) {
1046 wiphy_debug(hw
->wiphy
, " ASSOC: assoc=%d aid=%d\n",
1047 info
->assoc
, info
->aid
);
1048 vp
->assoc
= info
->assoc
;
1049 vp
->aid
= info
->aid
;
1052 if (changed
& BSS_CHANGED_BEACON_INT
) {
1053 wiphy_debug(hw
->wiphy
, " BCNINT: %d\n", info
->beacon_int
);
1054 data
->beacon_int
= 1024 * info
->beacon_int
/ 1000 * HZ
/ 1000;
1055 if (WARN_ON(!data
->beacon_int
))
1056 data
->beacon_int
= 1;
1058 mod_timer(&data
->beacon_timer
,
1059 jiffies
+ data
->beacon_int
);
1062 if (changed
& BSS_CHANGED_ERP_CTS_PROT
) {
1063 wiphy_debug(hw
->wiphy
, " ERP_CTS_PROT: %d\n",
1064 info
->use_cts_prot
);
1067 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
1068 wiphy_debug(hw
->wiphy
, " ERP_PREAMBLE: %d\n",
1069 info
->use_short_preamble
);
1072 if (changed
& BSS_CHANGED_ERP_SLOT
) {
1073 wiphy_debug(hw
->wiphy
, " ERP_SLOT: %d\n", info
->use_short_slot
);
1076 if (changed
& BSS_CHANGED_HT
) {
1077 wiphy_debug(hw
->wiphy
, " HT: op_mode=0x%x, chantype=%s\n",
1078 info
->ht_operation_mode
,
1079 hwsim_chantypes
[info
->channel_type
]);
1082 if (changed
& BSS_CHANGED_BASIC_RATES
) {
1083 wiphy_debug(hw
->wiphy
, " BASIC_RATES: 0x%llx\n",
1084 (unsigned long long) info
->basic_rates
);
1087 if (changed
& BSS_CHANGED_TXPOWER
)
1088 wiphy_debug(hw
->wiphy
, " TX Power: %d dBm\n", info
->txpower
);
1091 static int mac80211_hwsim_sta_add(struct ieee80211_hw
*hw
,
1092 struct ieee80211_vif
*vif
,
1093 struct ieee80211_sta
*sta
)
1095 hwsim_check_magic(vif
);
1096 hwsim_set_sta_magic(sta
);
1101 static int mac80211_hwsim_sta_remove(struct ieee80211_hw
*hw
,
1102 struct ieee80211_vif
*vif
,
1103 struct ieee80211_sta
*sta
)
1105 hwsim_check_magic(vif
);
1106 hwsim_clear_sta_magic(sta
);
1111 static void mac80211_hwsim_sta_notify(struct ieee80211_hw
*hw
,
1112 struct ieee80211_vif
*vif
,
1113 enum sta_notify_cmd cmd
,
1114 struct ieee80211_sta
*sta
)
1116 hwsim_check_magic(vif
);
1119 case STA_NOTIFY_SLEEP
:
1120 case STA_NOTIFY_AWAKE
:
1121 /* TODO: make good use of these flags */
1124 WARN(1, "Invalid sta notify: %d\n", cmd
);
1129 static int mac80211_hwsim_set_tim(struct ieee80211_hw
*hw
,
1130 struct ieee80211_sta
*sta
,
1133 hwsim_check_sta_magic(sta
);
1137 static int mac80211_hwsim_conf_tx(
1138 struct ieee80211_hw
*hw
,
1139 struct ieee80211_vif
*vif
, u16 queue
,
1140 const struct ieee80211_tx_queue_params
*params
)
1142 wiphy_debug(hw
->wiphy
,
1143 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1145 params
->txop
, params
->cw_min
,
1146 params
->cw_max
, params
->aifs
);
1150 static int mac80211_hwsim_get_survey(
1151 struct ieee80211_hw
*hw
, int idx
,
1152 struct survey_info
*survey
)
1154 struct ieee80211_conf
*conf
= &hw
->conf
;
1156 wiphy_debug(hw
->wiphy
, "%s (idx=%d)\n", __func__
, idx
);
1161 /* Current channel */
1162 survey
->channel
= conf
->channel
;
1165 * Magically conjured noise level --- this is only ok for simulated hardware.
1167 * A real driver which cannot determine the real channel noise MUST NOT
1168 * report any noise, especially not a magically conjured one :-)
1170 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
1171 survey
->noise
= -92;
1176 #ifdef CONFIG_NL80211_TESTMODE
1178 * This section contains example code for using netlink
1179 * attributes with the testmode command in nl80211.
1182 /* These enums need to be kept in sync with userspace */
1183 enum hwsim_testmode_attr
{
1184 __HWSIM_TM_ATTR_INVALID
= 0,
1185 HWSIM_TM_ATTR_CMD
= 1,
1186 HWSIM_TM_ATTR_PS
= 2,
1189 __HWSIM_TM_ATTR_AFTER_LAST
,
1190 HWSIM_TM_ATTR_MAX
= __HWSIM_TM_ATTR_AFTER_LAST
- 1
1193 enum hwsim_testmode_cmd
{
1194 HWSIM_TM_CMD_SET_PS
= 0,
1195 HWSIM_TM_CMD_GET_PS
= 1,
1196 HWSIM_TM_CMD_STOP_QUEUES
= 2,
1197 HWSIM_TM_CMD_WAKE_QUEUES
= 3,
1200 static const struct nla_policy hwsim_testmode_policy
[HWSIM_TM_ATTR_MAX
+ 1] = {
1201 [HWSIM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
1202 [HWSIM_TM_ATTR_PS
] = { .type
= NLA_U32
},
1205 static int hwsim_fops_ps_write(void *dat
, u64 val
);
1207 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw
*hw
,
1208 void *data
, int len
)
1210 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1211 struct nlattr
*tb
[HWSIM_TM_ATTR_MAX
+ 1];
1212 struct sk_buff
*skb
;
1215 err
= nla_parse(tb
, HWSIM_TM_ATTR_MAX
, data
, len
,
1216 hwsim_testmode_policy
);
1220 if (!tb
[HWSIM_TM_ATTR_CMD
])
1223 switch (nla_get_u32(tb
[HWSIM_TM_ATTR_CMD
])) {
1224 case HWSIM_TM_CMD_SET_PS
:
1225 if (!tb
[HWSIM_TM_ATTR_PS
])
1227 ps
= nla_get_u32(tb
[HWSIM_TM_ATTR_PS
]);
1228 return hwsim_fops_ps_write(hwsim
, ps
);
1229 case HWSIM_TM_CMD_GET_PS
:
1230 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
1231 nla_total_size(sizeof(u32
)));
1234 if (nla_put_u32(skb
, HWSIM_TM_ATTR_PS
, hwsim
->ps
))
1235 goto nla_put_failure
;
1236 return cfg80211_testmode_reply(skb
);
1237 case HWSIM_TM_CMD_STOP_QUEUES
:
1238 ieee80211_stop_queues(hw
);
1240 case HWSIM_TM_CMD_WAKE_QUEUES
:
1241 ieee80211_wake_queues(hw
);
1253 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw
*hw
,
1254 struct ieee80211_vif
*vif
,
1255 enum ieee80211_ampdu_mlme_action action
,
1256 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
1260 case IEEE80211_AMPDU_TX_START
:
1261 ieee80211_start_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1263 case IEEE80211_AMPDU_TX_STOP
:
1264 ieee80211_stop_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1266 case IEEE80211_AMPDU_TX_OPERATIONAL
:
1268 case IEEE80211_AMPDU_RX_START
:
1269 case IEEE80211_AMPDU_RX_STOP
:
1278 static void mac80211_hwsim_flush(struct ieee80211_hw
*hw
, bool drop
)
1280 /* Not implemented, queues only on kernel side */
1283 static void hw_scan_work(struct work_struct
*work
)
1285 struct mac80211_hwsim_data
*hwsim
=
1286 container_of(work
, struct mac80211_hwsim_data
, hw_scan
.work
);
1287 struct cfg80211_scan_request
*req
= hwsim
->hw_scan_request
;
1290 mutex_lock(&hwsim
->mutex
);
1291 if (hwsim
->scan_chan_idx
>= req
->n_channels
) {
1292 wiphy_debug(hwsim
->hw
->wiphy
, "hw scan complete\n");
1293 ieee80211_scan_completed(hwsim
->hw
, false);
1294 hwsim
->hw_scan_request
= NULL
;
1295 hwsim
->hw_scan_vif
= NULL
;
1296 hwsim
->tmp_chan
= NULL
;
1297 mutex_unlock(&hwsim
->mutex
);
1301 wiphy_debug(hwsim
->hw
->wiphy
, "hw scan %d MHz\n",
1302 req
->channels
[hwsim
->scan_chan_idx
]->center_freq
);
1304 hwsim
->tmp_chan
= req
->channels
[hwsim
->scan_chan_idx
];
1305 if (hwsim
->tmp_chan
->flags
& IEEE80211_CHAN_PASSIVE_SCAN
||
1311 for (i
= 0; i
< req
->n_ssids
; i
++) {
1312 struct sk_buff
*probe
;
1314 probe
= ieee80211_probereq_get(hwsim
->hw
,
1317 req
->ssids
[i
].ssid_len
,
1318 req
->ie
, req
->ie_len
);
1322 mac80211_hwsim_tx_frame(hwsim
->hw
, probe
,
1327 ieee80211_queue_delayed_work(hwsim
->hw
, &hwsim
->hw_scan
,
1328 msecs_to_jiffies(dwell
));
1329 hwsim
->scan_chan_idx
++;
1330 mutex_unlock(&hwsim
->mutex
);
1333 static int mac80211_hwsim_hw_scan(struct ieee80211_hw
*hw
,
1334 struct ieee80211_vif
*vif
,
1335 struct cfg80211_scan_request
*req
)
1337 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1340 mutex_lock(&hwsim
->mutex
);
1341 if (WARN_ON(hwsim
->tmp_chan
|| hwsim
->hw_scan_request
)) {
1342 mutex_unlock(&hwsim
->mutex
);
1345 hwsim
->hw_scan_request
= req
;
1346 hwsim
->hw_scan_vif
= vif
;
1347 hwsim
->scan_chan_idx
= 0;
1348 mutex_unlock(&hwsim
->mutex
);
1350 wiphy_debug(hw
->wiphy
, "hwsim hw_scan request\n");
1351 for (i
= 0; i
< req
->n_channels
; i
++)
1352 printk(KERN_DEBUG
"hwsim hw_scan freq %d\n",
1353 req
->channels
[i
]->center_freq
);
1354 print_hex_dump(KERN_DEBUG
, "scan IEs: ", DUMP_PREFIX_OFFSET
,
1355 16, 1, req
->ie
, req
->ie_len
, 1);
1357 ieee80211_queue_delayed_work(hwsim
->hw
, &hwsim
->hw_scan
, 0);
1362 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw
*hw
,
1363 struct ieee80211_vif
*vif
)
1365 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1367 wiphy_debug(hw
->wiphy
, "hwsim cancel_hw_scan\n");
1369 cancel_delayed_work_sync(&hwsim
->hw_scan
);
1371 mutex_lock(&hwsim
->mutex
);
1372 ieee80211_scan_completed(hwsim
->hw
, true);
1373 hwsim
->tmp_chan
= NULL
;
1374 hwsim
->hw_scan_request
= NULL
;
1375 hwsim
->hw_scan_vif
= NULL
;
1376 mutex_unlock(&hwsim
->mutex
);
1379 static void mac80211_hwsim_sw_scan(struct ieee80211_hw
*hw
)
1381 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1383 mutex_lock(&hwsim
->mutex
);
1385 if (hwsim
->scanning
) {
1386 printk(KERN_DEBUG
"two hwsim sw_scans detected!\n");
1390 printk(KERN_DEBUG
"hwsim sw_scan request, prepping stuff\n");
1391 hwsim
->scanning
= true;
1394 mutex_unlock(&hwsim
->mutex
);
1397 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw
*hw
)
1399 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1401 mutex_lock(&hwsim
->mutex
);
1403 printk(KERN_DEBUG
"hwsim sw_scan_complete\n");
1404 hwsim
->scanning
= false;
1406 mutex_unlock(&hwsim
->mutex
);
1409 static void hw_roc_done(struct work_struct
*work
)
1411 struct mac80211_hwsim_data
*hwsim
=
1412 container_of(work
, struct mac80211_hwsim_data
, roc_done
.work
);
1414 mutex_lock(&hwsim
->mutex
);
1415 ieee80211_remain_on_channel_expired(hwsim
->hw
);
1416 hwsim
->tmp_chan
= NULL
;
1417 mutex_unlock(&hwsim
->mutex
);
1419 wiphy_debug(hwsim
->hw
->wiphy
, "hwsim ROC expired\n");
1422 static int mac80211_hwsim_roc(struct ieee80211_hw
*hw
,
1423 struct ieee80211_channel
*chan
,
1424 enum nl80211_channel_type channel_type
,
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
);
1435 hwsim
->tmp_chan
= chan
;
1436 mutex_unlock(&hwsim
->mutex
);
1438 wiphy_debug(hw
->wiphy
, "hwsim ROC (%d MHz, %d ms)\n",
1439 chan
->center_freq
, duration
);
1441 ieee80211_ready_on_channel(hw
);
1443 ieee80211_queue_delayed_work(hw
, &hwsim
->roc_done
,
1444 msecs_to_jiffies(duration
));
1448 static int mac80211_hwsim_croc(struct ieee80211_hw
*hw
)
1450 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1452 cancel_delayed_work_sync(&hwsim
->roc_done
);
1454 mutex_lock(&hwsim
->mutex
);
1455 hwsim
->tmp_chan
= NULL
;
1456 mutex_unlock(&hwsim
->mutex
);
1458 wiphy_debug(hw
->wiphy
, "hwsim ROC canceled\n");
1463 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw
*hw
,
1464 struct ieee80211_chanctx_conf
*ctx
)
1466 hwsim_set_chanctx_magic(ctx
);
1467 wiphy_debug(hw
->wiphy
, "add channel context %d MHz/%d\n",
1468 ctx
->channel
->center_freq
, ctx
->channel_type
);
1472 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw
*hw
,
1473 struct ieee80211_chanctx_conf
*ctx
)
1475 wiphy_debug(hw
->wiphy
, "remove channel context %d MHz/%d\n",
1476 ctx
->channel
->center_freq
, ctx
->channel_type
);
1477 hwsim_check_chanctx_magic(ctx
);
1478 hwsim_clear_chanctx_magic(ctx
);
1481 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw
*hw
,
1482 struct ieee80211_chanctx_conf
*ctx
,
1485 hwsim_check_chanctx_magic(ctx
);
1486 wiphy_debug(hw
->wiphy
, "change channel context %#x (%d MHz/%d)\n",
1487 changed
, ctx
->channel
->center_freq
, ctx
->channel_type
);
1490 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw
*hw
,
1491 struct ieee80211_vif
*vif
,
1492 struct ieee80211_chanctx_conf
*ctx
)
1494 hwsim_check_magic(vif
);
1495 hwsim_check_chanctx_magic(ctx
);
1500 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
1501 struct ieee80211_vif
*vif
,
1502 struct ieee80211_chanctx_conf
*ctx
)
1504 hwsim_check_magic(vif
);
1505 hwsim_check_chanctx_magic(ctx
);
1508 static struct ieee80211_ops mac80211_hwsim_ops
=
1510 .tx
= mac80211_hwsim_tx
,
1511 .start
= mac80211_hwsim_start
,
1512 .stop
= mac80211_hwsim_stop
,
1513 .add_interface
= mac80211_hwsim_add_interface
,
1514 .change_interface
= mac80211_hwsim_change_interface
,
1515 .remove_interface
= mac80211_hwsim_remove_interface
,
1516 .config
= mac80211_hwsim_config
,
1517 .configure_filter
= mac80211_hwsim_configure_filter
,
1518 .bss_info_changed
= mac80211_hwsim_bss_info_changed
,
1519 .sta_add
= mac80211_hwsim_sta_add
,
1520 .sta_remove
= mac80211_hwsim_sta_remove
,
1521 .sta_notify
= mac80211_hwsim_sta_notify
,
1522 .set_tim
= mac80211_hwsim_set_tim
,
1523 .conf_tx
= mac80211_hwsim_conf_tx
,
1524 .get_survey
= mac80211_hwsim_get_survey
,
1525 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd
)
1526 .ampdu_action
= mac80211_hwsim_ampdu_action
,
1527 .sw_scan_start
= mac80211_hwsim_sw_scan
,
1528 .sw_scan_complete
= mac80211_hwsim_sw_scan_complete
,
1529 .flush
= mac80211_hwsim_flush
,
1530 .get_tsf
= mac80211_hwsim_get_tsf
,
1531 .set_tsf
= mac80211_hwsim_set_tsf
,
1535 static void mac80211_hwsim_free(void)
1537 struct list_head tmplist
, *i
, *tmp
;
1538 struct mac80211_hwsim_data
*data
, *tmpdata
;
1540 INIT_LIST_HEAD(&tmplist
);
1542 spin_lock_bh(&hwsim_radio_lock
);
1543 list_for_each_safe(i
, tmp
, &hwsim_radios
)
1544 list_move(i
, &tmplist
);
1545 spin_unlock_bh(&hwsim_radio_lock
);
1547 list_for_each_entry_safe(data
, tmpdata
, &tmplist
, list
) {
1548 debugfs_remove(data
->debugfs_group
);
1549 debugfs_remove(data
->debugfs_ps
);
1550 debugfs_remove(data
->debugfs
);
1551 ieee80211_unregister_hw(data
->hw
);
1552 device_unregister(data
->dev
);
1553 ieee80211_free_hw(data
->hw
);
1555 class_destroy(hwsim_class
);
1559 static struct device_driver mac80211_hwsim_driver
= {
1560 .name
= "mac80211_hwsim"
1563 static const struct net_device_ops hwsim_netdev_ops
= {
1564 .ndo_start_xmit
= hwsim_mon_xmit
,
1565 .ndo_change_mtu
= eth_change_mtu
,
1566 .ndo_set_mac_address
= eth_mac_addr
,
1567 .ndo_validate_addr
= eth_validate_addr
,
1570 static void hwsim_mon_setup(struct net_device
*dev
)
1572 dev
->netdev_ops
= &hwsim_netdev_ops
;
1573 dev
->destructor
= free_netdev
;
1575 dev
->tx_queue_len
= 0;
1576 dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1577 memset(dev
->dev_addr
, 0, ETH_ALEN
);
1578 dev
->dev_addr
[0] = 0x12;
1582 static void hwsim_send_ps_poll(void *dat
, u8
*mac
, struct ieee80211_vif
*vif
)
1584 struct mac80211_hwsim_data
*data
= dat
;
1585 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1586 struct sk_buff
*skb
;
1587 struct ieee80211_pspoll
*pspoll
;
1592 wiphy_debug(data
->hw
->wiphy
,
1593 "%s: send PS-Poll to %pM for aid %d\n",
1594 __func__
, vp
->bssid
, vp
->aid
);
1596 skb
= dev_alloc_skb(sizeof(*pspoll
));
1599 pspoll
= (void *) skb_put(skb
, sizeof(*pspoll
));
1600 pspoll
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
1601 IEEE80211_STYPE_PSPOLL
|
1603 pspoll
->aid
= cpu_to_le16(0xc000 | vp
->aid
);
1604 memcpy(pspoll
->bssid
, vp
->bssid
, ETH_ALEN
);
1605 memcpy(pspoll
->ta
, mac
, ETH_ALEN
);
1608 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1609 rcu_dereference(vif
->chanctx_conf
)->channel
);
1613 static void hwsim_send_nullfunc(struct mac80211_hwsim_data
*data
, u8
*mac
,
1614 struct ieee80211_vif
*vif
, int ps
)
1616 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1617 struct sk_buff
*skb
;
1618 struct ieee80211_hdr
*hdr
;
1623 wiphy_debug(data
->hw
->wiphy
,
1624 "%s: send data::nullfunc to %pM ps=%d\n",
1625 __func__
, vp
->bssid
, ps
);
1627 skb
= dev_alloc_skb(sizeof(*hdr
));
1630 hdr
= (void *) skb_put(skb
, sizeof(*hdr
) - ETH_ALEN
);
1631 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
1632 IEEE80211_STYPE_NULLFUNC
|
1633 (ps
? IEEE80211_FCTL_PM
: 0));
1634 hdr
->duration_id
= cpu_to_le16(0);
1635 memcpy(hdr
->addr1
, vp
->bssid
, ETH_ALEN
);
1636 memcpy(hdr
->addr2
, mac
, ETH_ALEN
);
1637 memcpy(hdr
->addr3
, vp
->bssid
, ETH_ALEN
);
1640 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1641 rcu_dereference(vif
->chanctx_conf
)->channel
);
1646 static void hwsim_send_nullfunc_ps(void *dat
, u8
*mac
,
1647 struct ieee80211_vif
*vif
)
1649 struct mac80211_hwsim_data
*data
= dat
;
1650 hwsim_send_nullfunc(data
, mac
, vif
, 1);
1654 static void hwsim_send_nullfunc_no_ps(void *dat
, u8
*mac
,
1655 struct ieee80211_vif
*vif
)
1657 struct mac80211_hwsim_data
*data
= dat
;
1658 hwsim_send_nullfunc(data
, mac
, vif
, 0);
1662 static int hwsim_fops_ps_read(void *dat
, u64
*val
)
1664 struct mac80211_hwsim_data
*data
= dat
;
1669 static int hwsim_fops_ps_write(void *dat
, u64 val
)
1671 struct mac80211_hwsim_data
*data
= dat
;
1672 enum ps_mode old_ps
;
1674 if (val
!= PS_DISABLED
&& val
!= PS_ENABLED
&& val
!= PS_AUTO_POLL
&&
1675 val
!= PS_MANUAL_POLL
)
1681 if (val
== PS_MANUAL_POLL
) {
1682 ieee80211_iterate_active_interfaces(data
->hw
,
1683 hwsim_send_ps_poll
, data
);
1684 data
->ps_poll_pending
= true;
1685 } else if (old_ps
== PS_DISABLED
&& val
!= PS_DISABLED
) {
1686 ieee80211_iterate_active_interfaces(data
->hw
,
1687 hwsim_send_nullfunc_ps
,
1689 } else if (old_ps
!= PS_DISABLED
&& val
== PS_DISABLED
) {
1690 ieee80211_iterate_active_interfaces(data
->hw
,
1691 hwsim_send_nullfunc_no_ps
,
1698 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps
, hwsim_fops_ps_read
, hwsim_fops_ps_write
,
1702 static int hwsim_fops_group_read(void *dat
, u64
*val
)
1704 struct mac80211_hwsim_data
*data
= dat
;
1709 static int hwsim_fops_group_write(void *dat
, u64 val
)
1711 struct mac80211_hwsim_data
*data
= dat
;
1716 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group
,
1717 hwsim_fops_group_read
, hwsim_fops_group_write
,
1720 static struct mac80211_hwsim_data
*get_hwsim_data_ref_from_addr(
1721 struct mac_address
*addr
)
1723 struct mac80211_hwsim_data
*data
;
1724 bool _found
= false;
1726 spin_lock_bh(&hwsim_radio_lock
);
1727 list_for_each_entry(data
, &hwsim_radios
, list
) {
1728 if (memcmp(data
->addresses
[1].addr
, addr
,
1729 sizeof(struct mac_address
)) == 0) {
1734 spin_unlock_bh(&hwsim_radio_lock
);
1742 static int hwsim_tx_info_frame_received_nl(struct sk_buff
*skb_2
,
1743 struct genl_info
*info
)
1746 struct ieee80211_hdr
*hdr
;
1747 struct mac80211_hwsim_data
*data2
;
1748 struct ieee80211_tx_info
*txi
;
1749 struct hwsim_tx_rate
*tx_attempts
;
1750 unsigned long ret_skb_ptr
;
1751 struct sk_buff
*skb
, *tmp
;
1752 struct mac_address
*src
;
1753 unsigned int hwsim_flags
;
1758 if (!info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
] ||
1759 !info
->attrs
[HWSIM_ATTR_FLAGS
] ||
1760 !info
->attrs
[HWSIM_ATTR_COOKIE
] ||
1761 !info
->attrs
[HWSIM_ATTR_TX_INFO
])
1764 src
= (struct mac_address
*)nla_data(
1765 info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
]);
1766 hwsim_flags
= nla_get_u32(info
->attrs
[HWSIM_ATTR_FLAGS
]);
1768 ret_skb_ptr
= nla_get_u64(info
->attrs
[HWSIM_ATTR_COOKIE
]);
1770 data2
= get_hwsim_data_ref_from_addr(src
);
1775 /* look for the skb matching the cookie passed back from user */
1776 skb_queue_walk_safe(&data2
->pending
, skb
, tmp
) {
1777 if ((unsigned long)skb
== ret_skb_ptr
) {
1778 skb_unlink(skb
, &data2
->pending
);
1788 /* Tx info received because the frame was broadcasted on user space,
1789 so we get all the necessary info: tx attempts and skb control buff */
1791 tx_attempts
= (struct hwsim_tx_rate
*)nla_data(
1792 info
->attrs
[HWSIM_ATTR_TX_INFO
]);
1794 /* now send back TX status */
1795 txi
= IEEE80211_SKB_CB(skb
);
1797 ieee80211_tx_info_clear_status(txi
);
1799 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
1800 txi
->status
.rates
[i
].idx
= tx_attempts
[i
].idx
;
1801 txi
->status
.rates
[i
].count
= tx_attempts
[i
].count
;
1802 /*txi->status.rates[i].flags = 0;*/
1805 txi
->status
.ack_signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1807 if (!(hwsim_flags
& HWSIM_TX_CTL_NO_ACK
) &&
1808 (hwsim_flags
& HWSIM_TX_STAT_ACK
)) {
1809 if (skb
->len
>= 16) {
1810 hdr
= (struct ieee80211_hdr
*) skb
->data
;
1811 mac80211_hwsim_monitor_ack(txi
->rate_driver_data
[0],
1814 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
1816 ieee80211_tx_status_irqsafe(data2
->hw
, skb
);
1823 static int hwsim_cloned_frame_received_nl(struct sk_buff
*skb_2
,
1824 struct genl_info
*info
)
1827 struct mac80211_hwsim_data
*data2
;
1828 struct ieee80211_rx_status rx_status
;
1829 struct mac_address
*dst
;
1832 struct sk_buff
*skb
= NULL
;
1834 if (!info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
] ||
1835 !info
->attrs
[HWSIM_ATTR_FRAME
] ||
1836 !info
->attrs
[HWSIM_ATTR_RX_RATE
] ||
1837 !info
->attrs
[HWSIM_ATTR_SIGNAL
])
1840 dst
= (struct mac_address
*)nla_data(
1841 info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
]);
1843 frame_data_len
= nla_len(info
->attrs
[HWSIM_ATTR_FRAME
]);
1844 frame_data
= (char *)nla_data(info
->attrs
[HWSIM_ATTR_FRAME
]);
1846 /* Allocate new skb here */
1847 skb
= alloc_skb(frame_data_len
, GFP_KERNEL
);
1851 if (frame_data_len
<= IEEE80211_MAX_DATA_LEN
) {
1853 memcpy(skb_put(skb
, frame_data_len
), frame_data
,
1858 data2
= get_hwsim_data_ref_from_addr(dst
);
1863 /* check if radio is configured properly */
1865 if (data2
->idle
|| !data2
->started
)
1868 /*A frame is received from user space*/
1869 memset(&rx_status
, 0, sizeof(rx_status
));
1870 rx_status
.freq
= data2
->channel
->center_freq
;
1871 rx_status
.band
= data2
->channel
->band
;
1872 rx_status
.rate_idx
= nla_get_u32(info
->attrs
[HWSIM_ATTR_RX_RATE
]);
1873 rx_status
.signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1875 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
1876 ieee80211_rx_irqsafe(data2
->hw
, skb
);
1880 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1887 static int hwsim_register_received_nl(struct sk_buff
*skb_2
,
1888 struct genl_info
*info
)
1893 wmediumd_portid
= info
->snd_portid
;
1895 printk(KERN_DEBUG
"mac80211_hwsim: received a REGISTER, "
1896 "switching to wmediumd mode with pid %d\n", info
->snd_portid
);
1900 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1904 /* Generic Netlink operations array */
1905 static struct genl_ops hwsim_ops
[] = {
1907 .cmd
= HWSIM_CMD_REGISTER
,
1908 .policy
= hwsim_genl_policy
,
1909 .doit
= hwsim_register_received_nl
,
1910 .flags
= GENL_ADMIN_PERM
,
1913 .cmd
= HWSIM_CMD_FRAME
,
1914 .policy
= hwsim_genl_policy
,
1915 .doit
= hwsim_cloned_frame_received_nl
,
1918 .cmd
= HWSIM_CMD_TX_INFO_FRAME
,
1919 .policy
= hwsim_genl_policy
,
1920 .doit
= hwsim_tx_info_frame_received_nl
,
1924 static int mac80211_hwsim_netlink_notify(struct notifier_block
*nb
,
1925 unsigned long state
,
1928 struct netlink_notify
*notify
= _notify
;
1930 if (state
!= NETLINK_URELEASE
)
1933 if (notify
->portid
== wmediumd_portid
) {
1934 printk(KERN_INFO
"mac80211_hwsim: wmediumd released netlink"
1935 " socket, switching to perfect channel medium\n");
1936 wmediumd_portid
= 0;
1942 static struct notifier_block hwsim_netlink_notifier
= {
1943 .notifier_call
= mac80211_hwsim_netlink_notify
,
1946 static int hwsim_init_netlink(void)
1950 /* userspace test API hasn't been adjusted for multi-channel */
1954 printk(KERN_INFO
"mac80211_hwsim: initializing netlink\n");
1956 rc
= genl_register_family_with_ops(&hwsim_genl_family
,
1957 hwsim_ops
, ARRAY_SIZE(hwsim_ops
));
1961 rc
= netlink_register_notifier(&hwsim_netlink_notifier
);
1968 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1972 static void hwsim_exit_netlink(void)
1976 /* userspace test API hasn't been adjusted for multi-channel */
1980 printk(KERN_INFO
"mac80211_hwsim: closing netlink\n");
1981 /* unregister the notifier */
1982 netlink_unregister_notifier(&hwsim_netlink_notifier
);
1983 /* unregister the family */
1984 ret
= genl_unregister_family(&hwsim_genl_family
);
1986 printk(KERN_DEBUG
"mac80211_hwsim: "
1987 "unregister family %i\n", ret
);
1990 static const struct ieee80211_iface_limit hwsim_if_limits
[] = {
1991 { .max
= 1, .types
= BIT(NL80211_IFTYPE_ADHOC
) },
1992 { .max
= 2048, .types
= BIT(NL80211_IFTYPE_STATION
) |
1993 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
1994 #ifdef CONFIG_MAC80211_MESH
1995 BIT(NL80211_IFTYPE_MESH_POINT
) |
1997 BIT(NL80211_IFTYPE_AP
) |
1998 BIT(NL80211_IFTYPE_P2P_GO
) },
1999 { .max
= 1, .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
) },
2002 static struct ieee80211_iface_combination hwsim_if_comb
= {
2003 .limits
= hwsim_if_limits
,
2004 .n_limits
= ARRAY_SIZE(hwsim_if_limits
),
2005 .max_interfaces
= 2048,
2006 .num_different_channels
= 1,
2009 static int __init
init_mac80211_hwsim(void)
2013 struct mac80211_hwsim_data
*data
;
2014 struct ieee80211_hw
*hw
;
2015 enum ieee80211_band band
;
2017 if (radios
< 1 || radios
> 100)
2024 hwsim_if_comb
.num_different_channels
= channels
;
2025 mac80211_hwsim_ops
.hw_scan
= mac80211_hwsim_hw_scan
;
2026 mac80211_hwsim_ops
.cancel_hw_scan
=
2027 mac80211_hwsim_cancel_hw_scan
;
2028 mac80211_hwsim_ops
.sw_scan_start
= NULL
;
2029 mac80211_hwsim_ops
.sw_scan_complete
= NULL
;
2030 mac80211_hwsim_ops
.remain_on_channel
=
2032 mac80211_hwsim_ops
.cancel_remain_on_channel
=
2033 mac80211_hwsim_croc
;
2034 mac80211_hwsim_ops
.add_chanctx
=
2035 mac80211_hwsim_add_chanctx
;
2036 mac80211_hwsim_ops
.remove_chanctx
=
2037 mac80211_hwsim_remove_chanctx
;
2038 mac80211_hwsim_ops
.change_chanctx
=
2039 mac80211_hwsim_change_chanctx
;
2040 mac80211_hwsim_ops
.assign_vif_chanctx
=
2041 mac80211_hwsim_assign_vif_chanctx
;
2042 mac80211_hwsim_ops
.unassign_vif_chanctx
=
2043 mac80211_hwsim_unassign_vif_chanctx
;
2046 spin_lock_init(&hwsim_radio_lock
);
2047 INIT_LIST_HEAD(&hwsim_radios
);
2049 hwsim_class
= class_create(THIS_MODULE
, "mac80211_hwsim");
2050 if (IS_ERR(hwsim_class
))
2051 return PTR_ERR(hwsim_class
);
2053 memset(addr
, 0, ETH_ALEN
);
2056 for (i
= 0; i
< radios
; i
++) {
2057 printk(KERN_DEBUG
"mac80211_hwsim: Initializing radio %d\n",
2059 hw
= ieee80211_alloc_hw(sizeof(*data
), &mac80211_hwsim_ops
);
2061 printk(KERN_DEBUG
"mac80211_hwsim: ieee80211_alloc_hw "
2069 data
->dev
= device_create(hwsim_class
, NULL
, 0, hw
,
2071 if (IS_ERR(data
->dev
)) {
2073 "mac80211_hwsim: device_create "
2074 "failed (%ld)\n", PTR_ERR(data
->dev
));
2076 goto failed_drvdata
;
2078 data
->dev
->driver
= &mac80211_hwsim_driver
;
2079 skb_queue_head_init(&data
->pending
);
2081 SET_IEEE80211_DEV(hw
, data
->dev
);
2084 memcpy(data
->addresses
[0].addr
, addr
, ETH_ALEN
);
2085 memcpy(data
->addresses
[1].addr
, addr
, ETH_ALEN
);
2086 data
->addresses
[1].addr
[0] |= 0x40;
2087 hw
->wiphy
->n_addresses
= 2;
2088 hw
->wiphy
->addresses
= data
->addresses
;
2090 hw
->wiphy
->iface_combinations
= &hwsim_if_comb
;
2091 hw
->wiphy
->n_iface_combinations
= 1;
2094 hw
->wiphy
->max_scan_ssids
= 255;
2095 hw
->wiphy
->max_scan_ie_len
= IEEE80211_MAX_DATA_LEN
;
2096 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2099 INIT_DELAYED_WORK(&data
->roc_done
, hw_roc_done
);
2100 INIT_DELAYED_WORK(&data
->hw_scan
, hw_scan_work
);
2102 hw
->channel_change_time
= 1;
2104 hw
->offchannel_tx_hw_queue
= 4;
2105 hw
->wiphy
->interface_modes
=
2106 BIT(NL80211_IFTYPE_STATION
) |
2107 BIT(NL80211_IFTYPE_AP
) |
2108 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2109 BIT(NL80211_IFTYPE_P2P_GO
) |
2110 BIT(NL80211_IFTYPE_ADHOC
) |
2111 BIT(NL80211_IFTYPE_MESH_POINT
) |
2112 BIT(NL80211_IFTYPE_P2P_DEVICE
);
2114 hw
->flags
= IEEE80211_HW_MFP_CAPABLE
|
2115 IEEE80211_HW_SIGNAL_DBM
|
2116 IEEE80211_HW_SUPPORTS_STATIC_SMPS
|
2117 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2118 IEEE80211_HW_AMPDU_AGGREGATION
|
2119 IEEE80211_HW_WANT_MONITOR_VIF
|
2120 IEEE80211_HW_QUEUE_CONTROL
;
2122 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
|
2123 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
;
2125 /* ask mac80211 to reserve space for magic */
2126 hw
->vif_data_size
= sizeof(struct hwsim_vif_priv
);
2127 hw
->sta_data_size
= sizeof(struct hwsim_sta_priv
);
2129 memcpy(data
->channels_2ghz
, hwsim_channels_2ghz
,
2130 sizeof(hwsim_channels_2ghz
));
2131 memcpy(data
->channels_5ghz
, hwsim_channels_5ghz
,
2132 sizeof(hwsim_channels_5ghz
));
2133 memcpy(data
->rates
, hwsim_rates
, sizeof(hwsim_rates
));
2135 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
2136 struct ieee80211_supported_band
*sband
= &data
->bands
[band
];
2138 case IEEE80211_BAND_2GHZ
:
2139 sband
->channels
= data
->channels_2ghz
;
2141 ARRAY_SIZE(hwsim_channels_2ghz
);
2142 sband
->bitrates
= data
->rates
;
2143 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
);
2145 case IEEE80211_BAND_5GHZ
:
2146 sband
->channels
= data
->channels_5ghz
;
2148 ARRAY_SIZE(hwsim_channels_5ghz
);
2149 sband
->bitrates
= data
->rates
+ 4;
2150 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
) - 4;
2156 sband
->ht_cap
.ht_supported
= true;
2157 sband
->ht_cap
.cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
2158 IEEE80211_HT_CAP_GRN_FLD
|
2159 IEEE80211_HT_CAP_SGI_40
|
2160 IEEE80211_HT_CAP_DSSSCCK40
;
2161 sband
->ht_cap
.ampdu_factor
= 0x3;
2162 sband
->ht_cap
.ampdu_density
= 0x6;
2163 memset(&sband
->ht_cap
.mcs
, 0,
2164 sizeof(sband
->ht_cap
.mcs
));
2165 sband
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2166 sband
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2167 sband
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2169 hw
->wiphy
->bands
[band
] = sband
;
2171 /* By default all radios are belonging to the first group */
2173 mutex_init(&data
->mutex
);
2175 /* Enable frame retransmissions for lossy channels */
2177 hw
->max_rate_tries
= 11;
2179 /* Work to be done prior to ieee80211_register_hw() */
2181 case HWSIM_REGTEST_DISABLED
:
2182 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
2183 case HWSIM_REGTEST_DRIVER_REG_ALL
:
2184 case HWSIM_REGTEST_DIFF_COUNTRY
:
2186 * Nothing to be done for driver regulatory domain
2187 * hints prior to ieee80211_register_hw()
2190 case HWSIM_REGTEST_WORLD_ROAM
:
2192 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2193 wiphy_apply_custom_regulatory(hw
->wiphy
,
2194 &hwsim_world_regdom_custom_01
);
2197 case HWSIM_REGTEST_CUSTOM_WORLD
:
2198 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2199 wiphy_apply_custom_regulatory(hw
->wiphy
,
2200 &hwsim_world_regdom_custom_01
);
2202 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
2204 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2205 wiphy_apply_custom_regulatory(hw
->wiphy
,
2206 &hwsim_world_regdom_custom_01
);
2207 } else if (i
== 1) {
2208 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2209 wiphy_apply_custom_regulatory(hw
->wiphy
,
2210 &hwsim_world_regdom_custom_02
);
2213 case HWSIM_REGTEST_STRICT_ALL
:
2214 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2216 case HWSIM_REGTEST_STRICT_FOLLOW
:
2217 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
2219 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2221 case HWSIM_REGTEST_ALL
:
2223 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2224 wiphy_apply_custom_regulatory(hw
->wiphy
,
2225 &hwsim_world_regdom_custom_01
);
2226 } else if (i
== 1) {
2227 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2228 wiphy_apply_custom_regulatory(hw
->wiphy
,
2229 &hwsim_world_regdom_custom_02
);
2231 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2237 /* give the regulatory workqueue a chance to run */
2239 schedule_timeout_interruptible(1);
2240 err
= ieee80211_register_hw(hw
);
2242 printk(KERN_DEBUG
"mac80211_hwsim: "
2243 "ieee80211_register_hw failed (%d)\n", err
);
2247 /* Work to be done after to ieee80211_register_hw() */
2249 case HWSIM_REGTEST_WORLD_ROAM
:
2250 case HWSIM_REGTEST_DISABLED
:
2252 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
2254 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2256 case HWSIM_REGTEST_DRIVER_REG_ALL
:
2257 case HWSIM_REGTEST_STRICT_ALL
:
2258 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2260 case HWSIM_REGTEST_DIFF_COUNTRY
:
2261 if (i
< ARRAY_SIZE(hwsim_alpha2s
))
2262 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[i
]);
2264 case HWSIM_REGTEST_CUSTOM_WORLD
:
2265 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
2267 * Nothing to be done for custom world regulatory
2268 * domains after to ieee80211_register_hw
2271 case HWSIM_REGTEST_STRICT_FOLLOW
:
2273 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2275 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
2277 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2279 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
2281 case HWSIM_REGTEST_ALL
:
2283 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2285 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
2287 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[2]);
2293 wiphy_debug(hw
->wiphy
, "hwaddr %pm registered\n",
2294 hw
->wiphy
->perm_addr
);
2296 data
->debugfs
= debugfs_create_dir("hwsim",
2297 hw
->wiphy
->debugfsdir
);
2298 data
->debugfs_ps
= debugfs_create_file("ps", 0666,
2299 data
->debugfs
, data
,
2301 data
->debugfs_group
= debugfs_create_file("group", 0666,
2302 data
->debugfs
, data
,
2305 setup_timer(&data
->beacon_timer
, mac80211_hwsim_beacon
,
2306 (unsigned long) hw
);
2308 list_add_tail(&data
->list
, &hwsim_radios
);
2311 hwsim_mon
= alloc_netdev(0, "hwsim%d", hwsim_mon_setup
);
2312 if (hwsim_mon
== NULL
)
2317 err
= dev_alloc_name(hwsim_mon
, hwsim_mon
->name
);
2322 err
= register_netdevice(hwsim_mon
);
2328 err
= hwsim_init_netlink();
2335 printk(KERN_DEBUG
"mac_80211_hwsim: failed initializing netlink\n");
2340 free_netdev(hwsim_mon
);
2341 mac80211_hwsim_free();
2345 device_unregister(data
->dev
);
2347 ieee80211_free_hw(hw
);
2349 mac80211_hwsim_free();
2352 module_init(init_mac80211_hwsim
);
2354 static void __exit
exit_mac80211_hwsim(void)
2356 printk(KERN_DEBUG
"mac80211_hwsim: unregister radios\n");
2358 hwsim_exit_netlink();
2360 mac80211_hwsim_free();
2361 unregister_netdev(hwsim_mon
);
2363 module_exit(exit_mac80211_hwsim
);