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 IEEE80211_IFACE_ITER_NORMAL
,
575 mac80211_hwsim_addr_iter
,
581 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw
*hw
,
582 struct sk_buff
*my_skb
,
586 struct mac80211_hwsim_data
*data
= hw
->priv
;
587 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) my_skb
->data
;
588 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(my_skb
);
590 unsigned int hwsim_flags
= 0;
592 struct hwsim_tx_rate tx_attempts
[IEEE80211_TX_MAX_RATES
];
594 if (data
->ps
!= PS_DISABLED
)
595 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
596 /* If the queue contains MAX_QUEUE skb's drop some */
597 if (skb_queue_len(&data
->pending
) >= MAX_QUEUE
) {
598 /* Droping until WARN_QUEUE level */
599 while (skb_queue_len(&data
->pending
) >= WARN_QUEUE
)
600 skb_dequeue(&data
->pending
);
603 skb
= genlmsg_new(GENLMSG_DEFAULT_SIZE
, GFP_ATOMIC
);
605 goto nla_put_failure
;
607 msg_head
= genlmsg_put(skb
, 0, 0, &hwsim_genl_family
, 0,
609 if (msg_head
== NULL
) {
610 printk(KERN_DEBUG
"mac80211_hwsim: problem with msg_head\n");
611 goto nla_put_failure
;
614 if (nla_put(skb
, HWSIM_ATTR_ADDR_TRANSMITTER
,
615 sizeof(struct mac_address
), data
->addresses
[1].addr
))
616 goto nla_put_failure
;
618 /* We get the skb->data */
619 if (nla_put(skb
, HWSIM_ATTR_FRAME
, my_skb
->len
, my_skb
->data
))
620 goto nla_put_failure
;
622 /* We get the flags for this transmission, and we translate them to
625 if (info
->flags
& IEEE80211_TX_CTL_REQ_TX_STATUS
)
626 hwsim_flags
|= HWSIM_TX_CTL_REQ_TX_STATUS
;
628 if (info
->flags
& IEEE80211_TX_CTL_NO_ACK
)
629 hwsim_flags
|= HWSIM_TX_CTL_NO_ACK
;
631 if (nla_put_u32(skb
, HWSIM_ATTR_FLAGS
, hwsim_flags
))
632 goto nla_put_failure
;
634 /* We get the tx control (rate and retries) info*/
636 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
637 tx_attempts
[i
].idx
= info
->status
.rates
[i
].idx
;
638 tx_attempts
[i
].count
= info
->status
.rates
[i
].count
;
641 if (nla_put(skb
, HWSIM_ATTR_TX_INFO
,
642 sizeof(struct hwsim_tx_rate
)*IEEE80211_TX_MAX_RATES
,
644 goto nla_put_failure
;
646 /* We create a cookie to identify this skb */
647 if (nla_put_u64(skb
, HWSIM_ATTR_COOKIE
, (unsigned long) my_skb
))
648 goto nla_put_failure
;
650 genlmsg_end(skb
, msg_head
);
651 genlmsg_unicast(&init_net
, skb
, dst_portid
);
653 /* Enqueue the packet */
654 skb_queue_tail(&data
->pending
, my_skb
);
658 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
661 static bool hwsim_chans_compat(struct ieee80211_channel
*c1
,
662 struct ieee80211_channel
*c2
)
667 return c1
->center_freq
== c2
->center_freq
;
670 struct tx_iter_data
{
671 struct ieee80211_channel
*channel
;
675 static void mac80211_hwsim_tx_iter(void *_data
, u8
*addr
,
676 struct ieee80211_vif
*vif
)
678 struct tx_iter_data
*data
= _data
;
680 if (!vif
->chanctx_conf
)
683 if (!hwsim_chans_compat(data
->channel
,
684 rcu_dereference(vif
->chanctx_conf
)->def
.chan
))
687 data
->receive
= true;
690 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw
*hw
,
692 struct ieee80211_channel
*chan
)
694 struct mac80211_hwsim_data
*data
= hw
->priv
, *data2
;
696 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
697 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
698 struct ieee80211_rx_status rx_status
;
699 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
701 memset(&rx_status
, 0, sizeof(rx_status
));
702 rx_status
.flag
|= RX_FLAG_MACTIME_START
;
703 rx_status
.freq
= chan
->center_freq
;
704 rx_status
.band
= chan
->band
;
705 rx_status
.rate_idx
= info
->control
.rates
[0].idx
;
706 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
707 rx_status
.flag
|= RX_FLAG_HT
;
708 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_40_MHZ_WIDTH
)
709 rx_status
.flag
|= RX_FLAG_40MHZ
;
710 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_SHORT_GI
)
711 rx_status
.flag
|= RX_FLAG_SHORT_GI
;
712 /* TODO: simulate real signal strength (and optional packet loss) */
713 rx_status
.signal
= data
->power_level
- 50;
715 if (data
->ps
!= PS_DISABLED
)
716 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
718 /* release the skb's source info */
725 /* Copy skb to all enabled radios that are on the current frequency */
726 spin_lock(&hwsim_radio_lock
);
727 list_for_each_entry(data2
, &hwsim_radios
, list
) {
728 struct sk_buff
*nskb
;
729 struct ieee80211_mgmt
*mgmt
;
730 struct tx_iter_data tx_iter_data
= {
738 if (!data2
->started
|| (data2
->idle
&& !data2
->tmp_chan
) ||
739 !hwsim_ps_rx_ok(data2
, skb
))
742 if (!(data
->group
& data2
->group
))
745 if (!hwsim_chans_compat(chan
, data2
->tmp_chan
) &&
746 !hwsim_chans_compat(chan
, data2
->channel
)) {
747 ieee80211_iterate_active_interfaces_atomic(
748 data2
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
749 mac80211_hwsim_tx_iter
, &tx_iter_data
);
750 if (!tx_iter_data
.receive
)
755 * reserve some space for our vendor and the normal
756 * radiotap header, since we're copying anyway
758 nskb
= skb_copy_expand(skb
, 64, 0, GFP_ATOMIC
);
762 if (mac80211_hwsim_addr_match(data2
, hdr
->addr1
))
765 /* set bcn timestamp relative to receiver mactime */
767 le64_to_cpu(__mac80211_hwsim_get_tsf(data2
));
768 mgmt
= (struct ieee80211_mgmt
*) nskb
->data
;
769 if (ieee80211_is_beacon(mgmt
->frame_control
) ||
770 ieee80211_is_probe_resp(mgmt
->frame_control
))
771 mgmt
->u
.beacon
.timestamp
= cpu_to_le64(
773 (data
->tsf_offset
- data2
->tsf_offset
) +
774 24 * 8 * 10 / txrate
->bitrate
);
778 * Don't enable this code by default as the OUI 00:00:00
779 * is registered to Xerox so we shouldn't use it here, it
780 * might find its way into pcap files.
781 * Note that this code requires the headroom in the SKB
782 * that was allocated earlier.
784 rx_status
.vendor_radiotap_oui
[0] = 0x00;
785 rx_status
.vendor_radiotap_oui
[1] = 0x00;
786 rx_status
.vendor_radiotap_oui
[2] = 0x00;
787 rx_status
.vendor_radiotap_subns
= 127;
789 * Radiotap vendor namespaces can (and should) also be
790 * split into fields by using the standard radiotap
791 * presence bitmap mechanism. Use just BIT(0) here for
792 * the presence bitmap.
794 rx_status
.vendor_radiotap_bitmap
= BIT(0);
795 /* We have 8 bytes of (dummy) data */
796 rx_status
.vendor_radiotap_len
= 8;
797 /* For testing, also require it to be aligned */
798 rx_status
.vendor_radiotap_align
= 8;
800 memcpy(skb_push(nskb
, 8), "ABCDEFGH", 8);
803 memcpy(IEEE80211_SKB_RXCB(nskb
), &rx_status
, sizeof(rx_status
));
804 ieee80211_rx_irqsafe(data2
->hw
, nskb
);
806 spin_unlock(&hwsim_radio_lock
);
811 static void mac80211_hwsim_tx(struct ieee80211_hw
*hw
,
812 struct ieee80211_tx_control
*control
,
815 struct mac80211_hwsim_data
*data
= hw
->priv
;
816 struct ieee80211_tx_info
*txi
= IEEE80211_SKB_CB(skb
);
817 struct ieee80211_chanctx_conf
*chanctx_conf
;
818 struct ieee80211_channel
*channel
;
822 if (WARN_ON(skb
->len
< 10)) {
823 /* Should not happen; just a sanity check for addr1 use */
829 channel
= data
->channel
;
830 } else if (txi
->hw_queue
== 4) {
831 channel
= data
->tmp_chan
;
833 chanctx_conf
= rcu_dereference(txi
->control
.vif
->chanctx_conf
);
835 channel
= chanctx_conf
->def
.chan
;
840 if (WARN(!channel
, "TX w/o channel - queue = %d\n", txi
->hw_queue
)) {
845 if (data
->idle
&& !data
->tmp_chan
) {
846 wiphy_debug(hw
->wiphy
, "Trying to TX when idle - reject\n");
851 if (txi
->control
.vif
)
852 hwsim_check_magic(txi
->control
.vif
);
854 hwsim_check_sta_magic(control
->sta
);
856 txi
->rate_driver_data
[0] = channel
;
858 mac80211_hwsim_monitor_rx(hw
, skb
, channel
);
860 /* wmediumd mode check */
861 _portid
= ACCESS_ONCE(wmediumd_portid
);
864 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _portid
);
866 /* NO wmediumd detected, perfect medium simulation */
867 ack
= mac80211_hwsim_tx_frame_no_nl(hw
, skb
, channel
);
869 if (ack
&& skb
->len
>= 16) {
870 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
871 mac80211_hwsim_monitor_ack(channel
, hdr
->addr2
);
874 ieee80211_tx_info_clear_status(txi
);
876 /* frame was transmitted at most favorable rate at first attempt */
877 txi
->control
.rates
[0].count
= 1;
878 txi
->control
.rates
[1].idx
= -1;
880 if (!(txi
->flags
& IEEE80211_TX_CTL_NO_ACK
) && ack
)
881 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
882 ieee80211_tx_status_irqsafe(hw
, skb
);
886 static int mac80211_hwsim_start(struct ieee80211_hw
*hw
)
888 struct mac80211_hwsim_data
*data
= hw
->priv
;
889 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
890 data
->started
= true;
895 static void mac80211_hwsim_stop(struct ieee80211_hw
*hw
)
897 struct mac80211_hwsim_data
*data
= hw
->priv
;
898 data
->started
= false;
899 del_timer(&data
->beacon_timer
);
900 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
904 static int mac80211_hwsim_add_interface(struct ieee80211_hw
*hw
,
905 struct ieee80211_vif
*vif
)
907 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
908 __func__
, ieee80211_vif_type_p2p(vif
),
910 hwsim_set_magic(vif
);
913 vif
->hw_queue
[IEEE80211_AC_VO
] = 0;
914 vif
->hw_queue
[IEEE80211_AC_VI
] = 1;
915 vif
->hw_queue
[IEEE80211_AC_BE
] = 2;
916 vif
->hw_queue
[IEEE80211_AC_BK
] = 3;
922 static int mac80211_hwsim_change_interface(struct ieee80211_hw
*hw
,
923 struct ieee80211_vif
*vif
,
924 enum nl80211_iftype newtype
,
927 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
928 wiphy_debug(hw
->wiphy
,
929 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
930 __func__
, ieee80211_vif_type_p2p(vif
),
932 hwsim_check_magic(vif
);
937 static void mac80211_hwsim_remove_interface(
938 struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
940 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
941 __func__
, ieee80211_vif_type_p2p(vif
),
943 hwsim_check_magic(vif
);
944 hwsim_clear_magic(vif
);
947 static void mac80211_hwsim_tx_frame(struct ieee80211_hw
*hw
,
949 struct ieee80211_channel
*chan
)
951 u32 _pid
= ACCESS_ONCE(wmediumd_portid
);
953 mac80211_hwsim_monitor_rx(hw
, skb
, chan
);
956 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _pid
);
958 mac80211_hwsim_tx_frame_no_nl(hw
, skb
, chan
);
962 static void mac80211_hwsim_beacon_tx(void *arg
, u8
*mac
,
963 struct ieee80211_vif
*vif
)
965 struct ieee80211_hw
*hw
= arg
;
968 hwsim_check_magic(vif
);
970 if (vif
->type
!= NL80211_IFTYPE_AP
&&
971 vif
->type
!= NL80211_IFTYPE_MESH_POINT
&&
972 vif
->type
!= NL80211_IFTYPE_ADHOC
)
975 skb
= ieee80211_beacon_get(hw
, vif
);
979 mac80211_hwsim_tx_frame(hw
, skb
,
980 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
984 static void mac80211_hwsim_beacon(unsigned long arg
)
986 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*) arg
;
987 struct mac80211_hwsim_data
*data
= hw
->priv
;
992 ieee80211_iterate_active_interfaces_atomic(
993 hw
, IEEE80211_IFACE_ITER_NORMAL
,
994 mac80211_hwsim_beacon_tx
, hw
);
996 data
->beacon_timer
.expires
= jiffies
+ data
->beacon_int
;
997 add_timer(&data
->beacon_timer
);
1000 static const char *hwsim_chantypes
[] = {
1001 [NL80211_CHAN_NO_HT
] = "noht",
1002 [NL80211_CHAN_HT20
] = "ht20",
1003 [NL80211_CHAN_HT40MINUS
] = "ht40-",
1004 [NL80211_CHAN_HT40PLUS
] = "ht40+",
1007 static int mac80211_hwsim_config(struct ieee80211_hw
*hw
, u32 changed
)
1009 struct mac80211_hwsim_data
*data
= hw
->priv
;
1010 struct ieee80211_conf
*conf
= &hw
->conf
;
1011 static const char *smps_modes
[IEEE80211_SMPS_NUM_MODES
] = {
1012 [IEEE80211_SMPS_AUTOMATIC
] = "auto",
1013 [IEEE80211_SMPS_OFF
] = "off",
1014 [IEEE80211_SMPS_STATIC
] = "static",
1015 [IEEE80211_SMPS_DYNAMIC
] = "dynamic",
1018 wiphy_debug(hw
->wiphy
,
1019 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1021 conf
->channel
? conf
->channel
->center_freq
: 0,
1022 hwsim_chantypes
[conf
->channel_type
],
1023 !!(conf
->flags
& IEEE80211_CONF_IDLE
),
1024 !!(conf
->flags
& IEEE80211_CONF_PS
),
1025 smps_modes
[conf
->smps_mode
]);
1027 data
->idle
= !!(conf
->flags
& IEEE80211_CONF_IDLE
);
1029 data
->channel
= conf
->channel
;
1031 WARN_ON(data
->channel
&& channels
> 1);
1033 data
->power_level
= conf
->power_level
;
1034 if (!data
->started
|| !data
->beacon_int
)
1035 del_timer(&data
->beacon_timer
);
1037 mod_timer(&data
->beacon_timer
, jiffies
+ data
->beacon_int
);
1043 static void mac80211_hwsim_configure_filter(struct ieee80211_hw
*hw
,
1044 unsigned int changed_flags
,
1045 unsigned int *total_flags
,u64 multicast
)
1047 struct mac80211_hwsim_data
*data
= hw
->priv
;
1049 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
1051 data
->rx_filter
= 0;
1052 if (*total_flags
& FIF_PROMISC_IN_BSS
)
1053 data
->rx_filter
|= FIF_PROMISC_IN_BSS
;
1054 if (*total_flags
& FIF_ALLMULTI
)
1055 data
->rx_filter
|= FIF_ALLMULTI
;
1057 *total_flags
= data
->rx_filter
;
1060 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw
*hw
,
1061 struct ieee80211_vif
*vif
,
1062 struct ieee80211_bss_conf
*info
,
1065 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1066 struct mac80211_hwsim_data
*data
= hw
->priv
;
1068 hwsim_check_magic(vif
);
1070 wiphy_debug(hw
->wiphy
, "%s(changed=0x%x)\n", __func__
, changed
);
1072 if (changed
& BSS_CHANGED_BSSID
) {
1073 wiphy_debug(hw
->wiphy
, "%s: BSSID changed: %pM\n",
1074 __func__
, info
->bssid
);
1075 memcpy(vp
->bssid
, info
->bssid
, ETH_ALEN
);
1078 if (changed
& BSS_CHANGED_ASSOC
) {
1079 wiphy_debug(hw
->wiphy
, " ASSOC: assoc=%d aid=%d\n",
1080 info
->assoc
, info
->aid
);
1081 vp
->assoc
= info
->assoc
;
1082 vp
->aid
= info
->aid
;
1085 if (changed
& BSS_CHANGED_BEACON_INT
) {
1086 wiphy_debug(hw
->wiphy
, " BCNINT: %d\n", info
->beacon_int
);
1087 data
->beacon_int
= 1024 * info
->beacon_int
/ 1000 * HZ
/ 1000;
1088 if (WARN_ON(!data
->beacon_int
))
1089 data
->beacon_int
= 1;
1091 mod_timer(&data
->beacon_timer
,
1092 jiffies
+ data
->beacon_int
);
1095 if (changed
& BSS_CHANGED_ERP_CTS_PROT
) {
1096 wiphy_debug(hw
->wiphy
, " ERP_CTS_PROT: %d\n",
1097 info
->use_cts_prot
);
1100 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
1101 wiphy_debug(hw
->wiphy
, " ERP_PREAMBLE: %d\n",
1102 info
->use_short_preamble
);
1105 if (changed
& BSS_CHANGED_ERP_SLOT
) {
1106 wiphy_debug(hw
->wiphy
, " ERP_SLOT: %d\n", info
->use_short_slot
);
1109 if (changed
& BSS_CHANGED_HT
) {
1110 wiphy_debug(hw
->wiphy
, " HT: op_mode=0x%x\n",
1111 info
->ht_operation_mode
);
1114 if (changed
& BSS_CHANGED_BASIC_RATES
) {
1115 wiphy_debug(hw
->wiphy
, " BASIC_RATES: 0x%llx\n",
1116 (unsigned long long) info
->basic_rates
);
1119 if (changed
& BSS_CHANGED_TXPOWER
)
1120 wiphy_debug(hw
->wiphy
, " TX Power: %d dBm\n", info
->txpower
);
1123 static int mac80211_hwsim_sta_add(struct ieee80211_hw
*hw
,
1124 struct ieee80211_vif
*vif
,
1125 struct ieee80211_sta
*sta
)
1127 hwsim_check_magic(vif
);
1128 hwsim_set_sta_magic(sta
);
1133 static int mac80211_hwsim_sta_remove(struct ieee80211_hw
*hw
,
1134 struct ieee80211_vif
*vif
,
1135 struct ieee80211_sta
*sta
)
1137 hwsim_check_magic(vif
);
1138 hwsim_clear_sta_magic(sta
);
1143 static void mac80211_hwsim_sta_notify(struct ieee80211_hw
*hw
,
1144 struct ieee80211_vif
*vif
,
1145 enum sta_notify_cmd cmd
,
1146 struct ieee80211_sta
*sta
)
1148 hwsim_check_magic(vif
);
1151 case STA_NOTIFY_SLEEP
:
1152 case STA_NOTIFY_AWAKE
:
1153 /* TODO: make good use of these flags */
1156 WARN(1, "Invalid sta notify: %d\n", cmd
);
1161 static int mac80211_hwsim_set_tim(struct ieee80211_hw
*hw
,
1162 struct ieee80211_sta
*sta
,
1165 hwsim_check_sta_magic(sta
);
1169 static int mac80211_hwsim_conf_tx(
1170 struct ieee80211_hw
*hw
,
1171 struct ieee80211_vif
*vif
, u16 queue
,
1172 const struct ieee80211_tx_queue_params
*params
)
1174 wiphy_debug(hw
->wiphy
,
1175 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1177 params
->txop
, params
->cw_min
,
1178 params
->cw_max
, params
->aifs
);
1182 static int mac80211_hwsim_get_survey(
1183 struct ieee80211_hw
*hw
, int idx
,
1184 struct survey_info
*survey
)
1186 struct ieee80211_conf
*conf
= &hw
->conf
;
1188 wiphy_debug(hw
->wiphy
, "%s (idx=%d)\n", __func__
, idx
);
1193 /* Current channel */
1194 survey
->channel
= conf
->channel
;
1197 * Magically conjured noise level --- this is only ok for simulated hardware.
1199 * A real driver which cannot determine the real channel noise MUST NOT
1200 * report any noise, especially not a magically conjured one :-)
1202 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
1203 survey
->noise
= -92;
1208 #ifdef CONFIG_NL80211_TESTMODE
1210 * This section contains example code for using netlink
1211 * attributes with the testmode command in nl80211.
1214 /* These enums need to be kept in sync with userspace */
1215 enum hwsim_testmode_attr
{
1216 __HWSIM_TM_ATTR_INVALID
= 0,
1217 HWSIM_TM_ATTR_CMD
= 1,
1218 HWSIM_TM_ATTR_PS
= 2,
1221 __HWSIM_TM_ATTR_AFTER_LAST
,
1222 HWSIM_TM_ATTR_MAX
= __HWSIM_TM_ATTR_AFTER_LAST
- 1
1225 enum hwsim_testmode_cmd
{
1226 HWSIM_TM_CMD_SET_PS
= 0,
1227 HWSIM_TM_CMD_GET_PS
= 1,
1228 HWSIM_TM_CMD_STOP_QUEUES
= 2,
1229 HWSIM_TM_CMD_WAKE_QUEUES
= 3,
1232 static const struct nla_policy hwsim_testmode_policy
[HWSIM_TM_ATTR_MAX
+ 1] = {
1233 [HWSIM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
1234 [HWSIM_TM_ATTR_PS
] = { .type
= NLA_U32
},
1237 static int hwsim_fops_ps_write(void *dat
, u64 val
);
1239 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw
*hw
,
1240 void *data
, int len
)
1242 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1243 struct nlattr
*tb
[HWSIM_TM_ATTR_MAX
+ 1];
1244 struct sk_buff
*skb
;
1247 err
= nla_parse(tb
, HWSIM_TM_ATTR_MAX
, data
, len
,
1248 hwsim_testmode_policy
);
1252 if (!tb
[HWSIM_TM_ATTR_CMD
])
1255 switch (nla_get_u32(tb
[HWSIM_TM_ATTR_CMD
])) {
1256 case HWSIM_TM_CMD_SET_PS
:
1257 if (!tb
[HWSIM_TM_ATTR_PS
])
1259 ps
= nla_get_u32(tb
[HWSIM_TM_ATTR_PS
]);
1260 return hwsim_fops_ps_write(hwsim
, ps
);
1261 case HWSIM_TM_CMD_GET_PS
:
1262 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
1263 nla_total_size(sizeof(u32
)));
1266 if (nla_put_u32(skb
, HWSIM_TM_ATTR_PS
, hwsim
->ps
))
1267 goto nla_put_failure
;
1268 return cfg80211_testmode_reply(skb
);
1269 case HWSIM_TM_CMD_STOP_QUEUES
:
1270 ieee80211_stop_queues(hw
);
1272 case HWSIM_TM_CMD_WAKE_QUEUES
:
1273 ieee80211_wake_queues(hw
);
1285 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw
*hw
,
1286 struct ieee80211_vif
*vif
,
1287 enum ieee80211_ampdu_mlme_action action
,
1288 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
1292 case IEEE80211_AMPDU_TX_START
:
1293 ieee80211_start_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1295 case IEEE80211_AMPDU_TX_STOP
:
1296 ieee80211_stop_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1298 case IEEE80211_AMPDU_TX_OPERATIONAL
:
1300 case IEEE80211_AMPDU_RX_START
:
1301 case IEEE80211_AMPDU_RX_STOP
:
1310 static void mac80211_hwsim_flush(struct ieee80211_hw
*hw
, bool drop
)
1312 /* Not implemented, queues only on kernel side */
1315 static void hw_scan_work(struct work_struct
*work
)
1317 struct mac80211_hwsim_data
*hwsim
=
1318 container_of(work
, struct mac80211_hwsim_data
, hw_scan
.work
);
1319 struct cfg80211_scan_request
*req
= hwsim
->hw_scan_request
;
1322 mutex_lock(&hwsim
->mutex
);
1323 if (hwsim
->scan_chan_idx
>= req
->n_channels
) {
1324 wiphy_debug(hwsim
->hw
->wiphy
, "hw scan complete\n");
1325 ieee80211_scan_completed(hwsim
->hw
, false);
1326 hwsim
->hw_scan_request
= NULL
;
1327 hwsim
->hw_scan_vif
= NULL
;
1328 hwsim
->tmp_chan
= NULL
;
1329 mutex_unlock(&hwsim
->mutex
);
1333 wiphy_debug(hwsim
->hw
->wiphy
, "hw scan %d MHz\n",
1334 req
->channels
[hwsim
->scan_chan_idx
]->center_freq
);
1336 hwsim
->tmp_chan
= req
->channels
[hwsim
->scan_chan_idx
];
1337 if (hwsim
->tmp_chan
->flags
& IEEE80211_CHAN_PASSIVE_SCAN
||
1343 for (i
= 0; i
< req
->n_ssids
; i
++) {
1344 struct sk_buff
*probe
;
1346 probe
= ieee80211_probereq_get(hwsim
->hw
,
1349 req
->ssids
[i
].ssid_len
,
1355 memcpy(skb_put(probe
, req
->ie_len
), req
->ie
,
1359 mac80211_hwsim_tx_frame(hwsim
->hw
, probe
,
1364 ieee80211_queue_delayed_work(hwsim
->hw
, &hwsim
->hw_scan
,
1365 msecs_to_jiffies(dwell
));
1366 hwsim
->scan_chan_idx
++;
1367 mutex_unlock(&hwsim
->mutex
);
1370 static int mac80211_hwsim_hw_scan(struct ieee80211_hw
*hw
,
1371 struct ieee80211_vif
*vif
,
1372 struct cfg80211_scan_request
*req
)
1374 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1376 mutex_lock(&hwsim
->mutex
);
1377 if (WARN_ON(hwsim
->tmp_chan
|| hwsim
->hw_scan_request
)) {
1378 mutex_unlock(&hwsim
->mutex
);
1381 hwsim
->hw_scan_request
= req
;
1382 hwsim
->hw_scan_vif
= vif
;
1383 hwsim
->scan_chan_idx
= 0;
1384 mutex_unlock(&hwsim
->mutex
);
1386 wiphy_debug(hw
->wiphy
, "hwsim hw_scan request\n");
1388 ieee80211_queue_delayed_work(hwsim
->hw
, &hwsim
->hw_scan
, 0);
1393 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw
*hw
,
1394 struct ieee80211_vif
*vif
)
1396 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1398 wiphy_debug(hw
->wiphy
, "hwsim cancel_hw_scan\n");
1400 cancel_delayed_work_sync(&hwsim
->hw_scan
);
1402 mutex_lock(&hwsim
->mutex
);
1403 ieee80211_scan_completed(hwsim
->hw
, true);
1404 hwsim
->tmp_chan
= NULL
;
1405 hwsim
->hw_scan_request
= NULL
;
1406 hwsim
->hw_scan_vif
= NULL
;
1407 mutex_unlock(&hwsim
->mutex
);
1410 static void mac80211_hwsim_sw_scan(struct ieee80211_hw
*hw
)
1412 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1414 mutex_lock(&hwsim
->mutex
);
1416 if (hwsim
->scanning
) {
1417 printk(KERN_DEBUG
"two hwsim sw_scans detected!\n");
1421 printk(KERN_DEBUG
"hwsim sw_scan request, prepping stuff\n");
1422 hwsim
->scanning
= true;
1425 mutex_unlock(&hwsim
->mutex
);
1428 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw
*hw
)
1430 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1432 mutex_lock(&hwsim
->mutex
);
1434 printk(KERN_DEBUG
"hwsim sw_scan_complete\n");
1435 hwsim
->scanning
= false;
1437 mutex_unlock(&hwsim
->mutex
);
1440 static void hw_roc_done(struct work_struct
*work
)
1442 struct mac80211_hwsim_data
*hwsim
=
1443 container_of(work
, struct mac80211_hwsim_data
, roc_done
.work
);
1445 mutex_lock(&hwsim
->mutex
);
1446 ieee80211_remain_on_channel_expired(hwsim
->hw
);
1447 hwsim
->tmp_chan
= NULL
;
1448 mutex_unlock(&hwsim
->mutex
);
1450 wiphy_debug(hwsim
->hw
->wiphy
, "hwsim ROC expired\n");
1453 static int mac80211_hwsim_roc(struct ieee80211_hw
*hw
,
1454 struct ieee80211_vif
*vif
,
1455 struct ieee80211_channel
*chan
,
1458 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1460 mutex_lock(&hwsim
->mutex
);
1461 if (WARN_ON(hwsim
->tmp_chan
|| hwsim
->hw_scan_request
)) {
1462 mutex_unlock(&hwsim
->mutex
);
1466 hwsim
->tmp_chan
= chan
;
1467 mutex_unlock(&hwsim
->mutex
);
1469 wiphy_debug(hw
->wiphy
, "hwsim ROC (%d MHz, %d ms)\n",
1470 chan
->center_freq
, duration
);
1472 ieee80211_ready_on_channel(hw
);
1474 ieee80211_queue_delayed_work(hw
, &hwsim
->roc_done
,
1475 msecs_to_jiffies(duration
));
1479 static int mac80211_hwsim_croc(struct ieee80211_hw
*hw
)
1481 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1483 cancel_delayed_work_sync(&hwsim
->roc_done
);
1485 mutex_lock(&hwsim
->mutex
);
1486 hwsim
->tmp_chan
= NULL
;
1487 mutex_unlock(&hwsim
->mutex
);
1489 wiphy_debug(hw
->wiphy
, "hwsim ROC canceled\n");
1494 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw
*hw
,
1495 struct ieee80211_chanctx_conf
*ctx
)
1497 hwsim_set_chanctx_magic(ctx
);
1498 wiphy_debug(hw
->wiphy
,
1499 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1500 ctx
->def
.chan
->center_freq
, ctx
->def
.width
,
1501 ctx
->def
.center_freq1
, ctx
->def
.center_freq2
);
1505 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw
*hw
,
1506 struct ieee80211_chanctx_conf
*ctx
)
1508 wiphy_debug(hw
->wiphy
,
1509 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1510 ctx
->def
.chan
->center_freq
, ctx
->def
.width
,
1511 ctx
->def
.center_freq1
, ctx
->def
.center_freq2
);
1512 hwsim_check_chanctx_magic(ctx
);
1513 hwsim_clear_chanctx_magic(ctx
);
1516 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw
*hw
,
1517 struct ieee80211_chanctx_conf
*ctx
,
1520 hwsim_check_chanctx_magic(ctx
);
1521 wiphy_debug(hw
->wiphy
,
1522 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1523 ctx
->def
.chan
->center_freq
, ctx
->def
.width
,
1524 ctx
->def
.center_freq1
, ctx
->def
.center_freq2
);
1527 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw
*hw
,
1528 struct ieee80211_vif
*vif
,
1529 struct ieee80211_chanctx_conf
*ctx
)
1531 hwsim_check_magic(vif
);
1532 hwsim_check_chanctx_magic(ctx
);
1537 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
1538 struct ieee80211_vif
*vif
,
1539 struct ieee80211_chanctx_conf
*ctx
)
1541 hwsim_check_magic(vif
);
1542 hwsim_check_chanctx_magic(ctx
);
1545 static struct ieee80211_ops mac80211_hwsim_ops
=
1547 .tx
= mac80211_hwsim_tx
,
1548 .start
= mac80211_hwsim_start
,
1549 .stop
= mac80211_hwsim_stop
,
1550 .add_interface
= mac80211_hwsim_add_interface
,
1551 .change_interface
= mac80211_hwsim_change_interface
,
1552 .remove_interface
= mac80211_hwsim_remove_interface
,
1553 .config
= mac80211_hwsim_config
,
1554 .configure_filter
= mac80211_hwsim_configure_filter
,
1555 .bss_info_changed
= mac80211_hwsim_bss_info_changed
,
1556 .sta_add
= mac80211_hwsim_sta_add
,
1557 .sta_remove
= mac80211_hwsim_sta_remove
,
1558 .sta_notify
= mac80211_hwsim_sta_notify
,
1559 .set_tim
= mac80211_hwsim_set_tim
,
1560 .conf_tx
= mac80211_hwsim_conf_tx
,
1561 .get_survey
= mac80211_hwsim_get_survey
,
1562 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd
)
1563 .ampdu_action
= mac80211_hwsim_ampdu_action
,
1564 .sw_scan_start
= mac80211_hwsim_sw_scan
,
1565 .sw_scan_complete
= mac80211_hwsim_sw_scan_complete
,
1566 .flush
= mac80211_hwsim_flush
,
1567 .get_tsf
= mac80211_hwsim_get_tsf
,
1568 .set_tsf
= mac80211_hwsim_set_tsf
,
1572 static void mac80211_hwsim_free(void)
1574 struct list_head tmplist
, *i
, *tmp
;
1575 struct mac80211_hwsim_data
*data
, *tmpdata
;
1577 INIT_LIST_HEAD(&tmplist
);
1579 spin_lock_bh(&hwsim_radio_lock
);
1580 list_for_each_safe(i
, tmp
, &hwsim_radios
)
1581 list_move(i
, &tmplist
);
1582 spin_unlock_bh(&hwsim_radio_lock
);
1584 list_for_each_entry_safe(data
, tmpdata
, &tmplist
, list
) {
1585 debugfs_remove(data
->debugfs_group
);
1586 debugfs_remove(data
->debugfs_ps
);
1587 debugfs_remove(data
->debugfs
);
1588 ieee80211_unregister_hw(data
->hw
);
1589 device_unregister(data
->dev
);
1590 ieee80211_free_hw(data
->hw
);
1592 class_destroy(hwsim_class
);
1596 static struct device_driver mac80211_hwsim_driver
= {
1597 .name
= "mac80211_hwsim"
1600 static const struct net_device_ops hwsim_netdev_ops
= {
1601 .ndo_start_xmit
= hwsim_mon_xmit
,
1602 .ndo_change_mtu
= eth_change_mtu
,
1603 .ndo_set_mac_address
= eth_mac_addr
,
1604 .ndo_validate_addr
= eth_validate_addr
,
1607 static void hwsim_mon_setup(struct net_device
*dev
)
1609 dev
->netdev_ops
= &hwsim_netdev_ops
;
1610 dev
->destructor
= free_netdev
;
1612 dev
->tx_queue_len
= 0;
1613 dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1614 memset(dev
->dev_addr
, 0, ETH_ALEN
);
1615 dev
->dev_addr
[0] = 0x12;
1619 static void hwsim_send_ps_poll(void *dat
, u8
*mac
, struct ieee80211_vif
*vif
)
1621 struct mac80211_hwsim_data
*data
= dat
;
1622 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1623 struct sk_buff
*skb
;
1624 struct ieee80211_pspoll
*pspoll
;
1629 wiphy_debug(data
->hw
->wiphy
,
1630 "%s: send PS-Poll to %pM for aid %d\n",
1631 __func__
, vp
->bssid
, vp
->aid
);
1633 skb
= dev_alloc_skb(sizeof(*pspoll
));
1636 pspoll
= (void *) skb_put(skb
, sizeof(*pspoll
));
1637 pspoll
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
1638 IEEE80211_STYPE_PSPOLL
|
1640 pspoll
->aid
= cpu_to_le16(0xc000 | vp
->aid
);
1641 memcpy(pspoll
->bssid
, vp
->bssid
, ETH_ALEN
);
1642 memcpy(pspoll
->ta
, mac
, ETH_ALEN
);
1645 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1646 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1650 static void hwsim_send_nullfunc(struct mac80211_hwsim_data
*data
, u8
*mac
,
1651 struct ieee80211_vif
*vif
, int ps
)
1653 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1654 struct sk_buff
*skb
;
1655 struct ieee80211_hdr
*hdr
;
1660 wiphy_debug(data
->hw
->wiphy
,
1661 "%s: send data::nullfunc to %pM ps=%d\n",
1662 __func__
, vp
->bssid
, ps
);
1664 skb
= dev_alloc_skb(sizeof(*hdr
));
1667 hdr
= (void *) skb_put(skb
, sizeof(*hdr
) - ETH_ALEN
);
1668 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
1669 IEEE80211_STYPE_NULLFUNC
|
1670 (ps
? IEEE80211_FCTL_PM
: 0));
1671 hdr
->duration_id
= cpu_to_le16(0);
1672 memcpy(hdr
->addr1
, vp
->bssid
, ETH_ALEN
);
1673 memcpy(hdr
->addr2
, mac
, ETH_ALEN
);
1674 memcpy(hdr
->addr3
, vp
->bssid
, ETH_ALEN
);
1677 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1678 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1683 static void hwsim_send_nullfunc_ps(void *dat
, u8
*mac
,
1684 struct ieee80211_vif
*vif
)
1686 struct mac80211_hwsim_data
*data
= dat
;
1687 hwsim_send_nullfunc(data
, mac
, vif
, 1);
1691 static void hwsim_send_nullfunc_no_ps(void *dat
, u8
*mac
,
1692 struct ieee80211_vif
*vif
)
1694 struct mac80211_hwsim_data
*data
= dat
;
1695 hwsim_send_nullfunc(data
, mac
, vif
, 0);
1699 static int hwsim_fops_ps_read(void *dat
, u64
*val
)
1701 struct mac80211_hwsim_data
*data
= dat
;
1706 static int hwsim_fops_ps_write(void *dat
, u64 val
)
1708 struct mac80211_hwsim_data
*data
= dat
;
1709 enum ps_mode old_ps
;
1711 if (val
!= PS_DISABLED
&& val
!= PS_ENABLED
&& val
!= PS_AUTO_POLL
&&
1712 val
!= PS_MANUAL_POLL
)
1718 if (val
== PS_MANUAL_POLL
) {
1719 ieee80211_iterate_active_interfaces(data
->hw
,
1720 IEEE80211_IFACE_ITER_NORMAL
,
1721 hwsim_send_ps_poll
, data
);
1722 data
->ps_poll_pending
= true;
1723 } else if (old_ps
== PS_DISABLED
&& val
!= PS_DISABLED
) {
1724 ieee80211_iterate_active_interfaces(data
->hw
,
1725 IEEE80211_IFACE_ITER_NORMAL
,
1726 hwsim_send_nullfunc_ps
,
1728 } else if (old_ps
!= PS_DISABLED
&& val
== PS_DISABLED
) {
1729 ieee80211_iterate_active_interfaces(data
->hw
,
1730 IEEE80211_IFACE_ITER_NORMAL
,
1731 hwsim_send_nullfunc_no_ps
,
1738 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps
, hwsim_fops_ps_read
, hwsim_fops_ps_write
,
1742 static int hwsim_fops_group_read(void *dat
, u64
*val
)
1744 struct mac80211_hwsim_data
*data
= dat
;
1749 static int hwsim_fops_group_write(void *dat
, u64 val
)
1751 struct mac80211_hwsim_data
*data
= dat
;
1756 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group
,
1757 hwsim_fops_group_read
, hwsim_fops_group_write
,
1760 static struct mac80211_hwsim_data
*get_hwsim_data_ref_from_addr(
1761 struct mac_address
*addr
)
1763 struct mac80211_hwsim_data
*data
;
1764 bool _found
= false;
1766 spin_lock_bh(&hwsim_radio_lock
);
1767 list_for_each_entry(data
, &hwsim_radios
, list
) {
1768 if (memcmp(data
->addresses
[1].addr
, addr
,
1769 sizeof(struct mac_address
)) == 0) {
1774 spin_unlock_bh(&hwsim_radio_lock
);
1782 static int hwsim_tx_info_frame_received_nl(struct sk_buff
*skb_2
,
1783 struct genl_info
*info
)
1786 struct ieee80211_hdr
*hdr
;
1787 struct mac80211_hwsim_data
*data2
;
1788 struct ieee80211_tx_info
*txi
;
1789 struct hwsim_tx_rate
*tx_attempts
;
1790 unsigned long ret_skb_ptr
;
1791 struct sk_buff
*skb
, *tmp
;
1792 struct mac_address
*src
;
1793 unsigned int hwsim_flags
;
1798 if (!info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
] ||
1799 !info
->attrs
[HWSIM_ATTR_FLAGS
] ||
1800 !info
->attrs
[HWSIM_ATTR_COOKIE
] ||
1801 !info
->attrs
[HWSIM_ATTR_TX_INFO
])
1804 src
= (struct mac_address
*)nla_data(
1805 info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
]);
1806 hwsim_flags
= nla_get_u32(info
->attrs
[HWSIM_ATTR_FLAGS
]);
1808 ret_skb_ptr
= nla_get_u64(info
->attrs
[HWSIM_ATTR_COOKIE
]);
1810 data2
= get_hwsim_data_ref_from_addr(src
);
1815 /* look for the skb matching the cookie passed back from user */
1816 skb_queue_walk_safe(&data2
->pending
, skb
, tmp
) {
1817 if ((unsigned long)skb
== ret_skb_ptr
) {
1818 skb_unlink(skb
, &data2
->pending
);
1828 /* Tx info received because the frame was broadcasted on user space,
1829 so we get all the necessary info: tx attempts and skb control buff */
1831 tx_attempts
= (struct hwsim_tx_rate
*)nla_data(
1832 info
->attrs
[HWSIM_ATTR_TX_INFO
]);
1834 /* now send back TX status */
1835 txi
= IEEE80211_SKB_CB(skb
);
1837 ieee80211_tx_info_clear_status(txi
);
1839 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
1840 txi
->status
.rates
[i
].idx
= tx_attempts
[i
].idx
;
1841 txi
->status
.rates
[i
].count
= tx_attempts
[i
].count
;
1842 /*txi->status.rates[i].flags = 0;*/
1845 txi
->status
.ack_signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1847 if (!(hwsim_flags
& HWSIM_TX_CTL_NO_ACK
) &&
1848 (hwsim_flags
& HWSIM_TX_STAT_ACK
)) {
1849 if (skb
->len
>= 16) {
1850 hdr
= (struct ieee80211_hdr
*) skb
->data
;
1851 mac80211_hwsim_monitor_ack(txi
->rate_driver_data
[0],
1854 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
1856 ieee80211_tx_status_irqsafe(data2
->hw
, skb
);
1863 static int hwsim_cloned_frame_received_nl(struct sk_buff
*skb_2
,
1864 struct genl_info
*info
)
1867 struct mac80211_hwsim_data
*data2
;
1868 struct ieee80211_rx_status rx_status
;
1869 struct mac_address
*dst
;
1872 struct sk_buff
*skb
= NULL
;
1874 if (!info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
] ||
1875 !info
->attrs
[HWSIM_ATTR_FRAME
] ||
1876 !info
->attrs
[HWSIM_ATTR_RX_RATE
] ||
1877 !info
->attrs
[HWSIM_ATTR_SIGNAL
])
1880 dst
= (struct mac_address
*)nla_data(
1881 info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
]);
1883 frame_data_len
= nla_len(info
->attrs
[HWSIM_ATTR_FRAME
]);
1884 frame_data
= (char *)nla_data(info
->attrs
[HWSIM_ATTR_FRAME
]);
1886 /* Allocate new skb here */
1887 skb
= alloc_skb(frame_data_len
, GFP_KERNEL
);
1891 if (frame_data_len
<= IEEE80211_MAX_DATA_LEN
) {
1893 memcpy(skb_put(skb
, frame_data_len
), frame_data
,
1898 data2
= get_hwsim_data_ref_from_addr(dst
);
1903 /* check if radio is configured properly */
1905 if (data2
->idle
|| !data2
->started
)
1908 /*A frame is received from user space*/
1909 memset(&rx_status
, 0, sizeof(rx_status
));
1910 rx_status
.freq
= data2
->channel
->center_freq
;
1911 rx_status
.band
= data2
->channel
->band
;
1912 rx_status
.rate_idx
= nla_get_u32(info
->attrs
[HWSIM_ATTR_RX_RATE
]);
1913 rx_status
.signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1915 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
1916 ieee80211_rx_irqsafe(data2
->hw
, skb
);
1920 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1927 static int hwsim_register_received_nl(struct sk_buff
*skb_2
,
1928 struct genl_info
*info
)
1933 wmediumd_portid
= info
->snd_portid
;
1935 printk(KERN_DEBUG
"mac80211_hwsim: received a REGISTER, "
1936 "switching to wmediumd mode with pid %d\n", info
->snd_portid
);
1940 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1944 /* Generic Netlink operations array */
1945 static struct genl_ops hwsim_ops
[] = {
1947 .cmd
= HWSIM_CMD_REGISTER
,
1948 .policy
= hwsim_genl_policy
,
1949 .doit
= hwsim_register_received_nl
,
1950 .flags
= GENL_ADMIN_PERM
,
1953 .cmd
= HWSIM_CMD_FRAME
,
1954 .policy
= hwsim_genl_policy
,
1955 .doit
= hwsim_cloned_frame_received_nl
,
1958 .cmd
= HWSIM_CMD_TX_INFO_FRAME
,
1959 .policy
= hwsim_genl_policy
,
1960 .doit
= hwsim_tx_info_frame_received_nl
,
1964 static int mac80211_hwsim_netlink_notify(struct notifier_block
*nb
,
1965 unsigned long state
,
1968 struct netlink_notify
*notify
= _notify
;
1970 if (state
!= NETLINK_URELEASE
)
1973 if (notify
->portid
== wmediumd_portid
) {
1974 printk(KERN_INFO
"mac80211_hwsim: wmediumd released netlink"
1975 " socket, switching to perfect channel medium\n");
1976 wmediumd_portid
= 0;
1982 static struct notifier_block hwsim_netlink_notifier
= {
1983 .notifier_call
= mac80211_hwsim_netlink_notify
,
1986 static int hwsim_init_netlink(void)
1990 /* userspace test API hasn't been adjusted for multi-channel */
1994 printk(KERN_INFO
"mac80211_hwsim: initializing netlink\n");
1996 rc
= genl_register_family_with_ops(&hwsim_genl_family
,
1997 hwsim_ops
, ARRAY_SIZE(hwsim_ops
));
2001 rc
= netlink_register_notifier(&hwsim_netlink_notifier
);
2008 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
2012 static void hwsim_exit_netlink(void)
2016 /* userspace test API hasn't been adjusted for multi-channel */
2020 printk(KERN_INFO
"mac80211_hwsim: closing netlink\n");
2021 /* unregister the notifier */
2022 netlink_unregister_notifier(&hwsim_netlink_notifier
);
2023 /* unregister the family */
2024 ret
= genl_unregister_family(&hwsim_genl_family
);
2026 printk(KERN_DEBUG
"mac80211_hwsim: "
2027 "unregister family %i\n", ret
);
2030 static const struct ieee80211_iface_limit hwsim_if_limits
[] = {
2031 { .max
= 1, .types
= BIT(NL80211_IFTYPE_ADHOC
) },
2032 { .max
= 2048, .types
= BIT(NL80211_IFTYPE_STATION
) |
2033 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2034 #ifdef CONFIG_MAC80211_MESH
2035 BIT(NL80211_IFTYPE_MESH_POINT
) |
2037 BIT(NL80211_IFTYPE_AP
) |
2038 BIT(NL80211_IFTYPE_P2P_GO
) },
2039 { .max
= 1, .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
) },
2042 static struct ieee80211_iface_combination hwsim_if_comb
= {
2043 .limits
= hwsim_if_limits
,
2044 .n_limits
= ARRAY_SIZE(hwsim_if_limits
),
2045 .max_interfaces
= 2048,
2046 .num_different_channels
= 1,
2049 static int __init
init_mac80211_hwsim(void)
2053 struct mac80211_hwsim_data
*data
;
2054 struct ieee80211_hw
*hw
;
2055 enum ieee80211_band band
;
2057 if (radios
< 1 || radios
> 100)
2064 hwsim_if_comb
.num_different_channels
= channels
;
2065 mac80211_hwsim_ops
.hw_scan
= mac80211_hwsim_hw_scan
;
2066 mac80211_hwsim_ops
.cancel_hw_scan
=
2067 mac80211_hwsim_cancel_hw_scan
;
2068 mac80211_hwsim_ops
.sw_scan_start
= NULL
;
2069 mac80211_hwsim_ops
.sw_scan_complete
= NULL
;
2070 mac80211_hwsim_ops
.remain_on_channel
=
2072 mac80211_hwsim_ops
.cancel_remain_on_channel
=
2073 mac80211_hwsim_croc
;
2074 mac80211_hwsim_ops
.add_chanctx
=
2075 mac80211_hwsim_add_chanctx
;
2076 mac80211_hwsim_ops
.remove_chanctx
=
2077 mac80211_hwsim_remove_chanctx
;
2078 mac80211_hwsim_ops
.change_chanctx
=
2079 mac80211_hwsim_change_chanctx
;
2080 mac80211_hwsim_ops
.assign_vif_chanctx
=
2081 mac80211_hwsim_assign_vif_chanctx
;
2082 mac80211_hwsim_ops
.unassign_vif_chanctx
=
2083 mac80211_hwsim_unassign_vif_chanctx
;
2086 spin_lock_init(&hwsim_radio_lock
);
2087 INIT_LIST_HEAD(&hwsim_radios
);
2089 hwsim_class
= class_create(THIS_MODULE
, "mac80211_hwsim");
2090 if (IS_ERR(hwsim_class
))
2091 return PTR_ERR(hwsim_class
);
2093 memset(addr
, 0, ETH_ALEN
);
2096 for (i
= 0; i
< radios
; i
++) {
2097 printk(KERN_DEBUG
"mac80211_hwsim: Initializing radio %d\n",
2099 hw
= ieee80211_alloc_hw(sizeof(*data
), &mac80211_hwsim_ops
);
2101 printk(KERN_DEBUG
"mac80211_hwsim: ieee80211_alloc_hw "
2109 data
->dev
= device_create(hwsim_class
, NULL
, 0, hw
,
2111 if (IS_ERR(data
->dev
)) {
2113 "mac80211_hwsim: device_create "
2114 "failed (%ld)\n", PTR_ERR(data
->dev
));
2116 goto failed_drvdata
;
2118 data
->dev
->driver
= &mac80211_hwsim_driver
;
2119 skb_queue_head_init(&data
->pending
);
2121 SET_IEEE80211_DEV(hw
, data
->dev
);
2124 memcpy(data
->addresses
[0].addr
, addr
, ETH_ALEN
);
2125 memcpy(data
->addresses
[1].addr
, addr
, ETH_ALEN
);
2126 data
->addresses
[1].addr
[0] |= 0x40;
2127 hw
->wiphy
->n_addresses
= 2;
2128 hw
->wiphy
->addresses
= data
->addresses
;
2130 hw
->wiphy
->iface_combinations
= &hwsim_if_comb
;
2131 hw
->wiphy
->n_iface_combinations
= 1;
2134 hw
->wiphy
->max_scan_ssids
= 255;
2135 hw
->wiphy
->max_scan_ie_len
= IEEE80211_MAX_DATA_LEN
;
2136 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2139 INIT_DELAYED_WORK(&data
->roc_done
, hw_roc_done
);
2140 INIT_DELAYED_WORK(&data
->hw_scan
, hw_scan_work
);
2142 hw
->channel_change_time
= 1;
2144 hw
->offchannel_tx_hw_queue
= 4;
2145 hw
->wiphy
->interface_modes
=
2146 BIT(NL80211_IFTYPE_STATION
) |
2147 BIT(NL80211_IFTYPE_AP
) |
2148 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2149 BIT(NL80211_IFTYPE_P2P_GO
) |
2150 BIT(NL80211_IFTYPE_ADHOC
) |
2151 BIT(NL80211_IFTYPE_MESH_POINT
) |
2152 BIT(NL80211_IFTYPE_P2P_DEVICE
);
2154 hw
->flags
= IEEE80211_HW_MFP_CAPABLE
|
2155 IEEE80211_HW_SIGNAL_DBM
|
2156 IEEE80211_HW_SUPPORTS_STATIC_SMPS
|
2157 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2158 IEEE80211_HW_AMPDU_AGGREGATION
|
2159 IEEE80211_HW_WANT_MONITOR_VIF
|
2160 IEEE80211_HW_QUEUE_CONTROL
;
2162 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
|
2163 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
;
2165 /* ask mac80211 to reserve space for magic */
2166 hw
->vif_data_size
= sizeof(struct hwsim_vif_priv
);
2167 hw
->sta_data_size
= sizeof(struct hwsim_sta_priv
);
2169 memcpy(data
->channels_2ghz
, hwsim_channels_2ghz
,
2170 sizeof(hwsim_channels_2ghz
));
2171 memcpy(data
->channels_5ghz
, hwsim_channels_5ghz
,
2172 sizeof(hwsim_channels_5ghz
));
2173 memcpy(data
->rates
, hwsim_rates
, sizeof(hwsim_rates
));
2175 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
2176 struct ieee80211_supported_band
*sband
= &data
->bands
[band
];
2178 case IEEE80211_BAND_2GHZ
:
2179 sband
->channels
= data
->channels_2ghz
;
2181 ARRAY_SIZE(hwsim_channels_2ghz
);
2182 sband
->bitrates
= data
->rates
;
2183 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
);
2185 case IEEE80211_BAND_5GHZ
:
2186 sband
->channels
= data
->channels_5ghz
;
2188 ARRAY_SIZE(hwsim_channels_5ghz
);
2189 sband
->bitrates
= data
->rates
+ 4;
2190 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
) - 4;
2196 sband
->ht_cap
.ht_supported
= true;
2197 sband
->ht_cap
.cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
2198 IEEE80211_HT_CAP_GRN_FLD
|
2199 IEEE80211_HT_CAP_SGI_40
|
2200 IEEE80211_HT_CAP_DSSSCCK40
;
2201 sband
->ht_cap
.ampdu_factor
= 0x3;
2202 sband
->ht_cap
.ampdu_density
= 0x6;
2203 memset(&sband
->ht_cap
.mcs
, 0,
2204 sizeof(sband
->ht_cap
.mcs
));
2205 sband
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2206 sband
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2207 sband
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2209 hw
->wiphy
->bands
[band
] = sband
;
2214 sband
->vht_cap
.vht_supported
= true;
2215 sband
->vht_cap
.cap
=
2216 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454
|
2217 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ
|
2218 IEEE80211_VHT_CAP_RXLDPC
|
2219 IEEE80211_VHT_CAP_SHORT_GI_80
|
2220 IEEE80211_VHT_CAP_SHORT_GI_160
|
2221 IEEE80211_VHT_CAP_TXSTBC
|
2222 IEEE80211_VHT_CAP_RXSTBC_1
|
2223 IEEE80211_VHT_CAP_RXSTBC_2
|
2224 IEEE80211_VHT_CAP_RXSTBC_3
|
2225 IEEE80211_VHT_CAP_RXSTBC_4
|
2226 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT
;
2227 sband
->vht_cap
.vht_mcs
.rx_mcs_map
=
2228 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8
<< 0 |
2229 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 2 |
2230 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 4 |
2231 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 6 |
2232 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 8 |
2233 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 10 |
2234 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 12 |
2235 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 14);
2236 sband
->vht_cap
.vht_mcs
.tx_mcs_map
=
2237 sband
->vht_cap
.vht_mcs
.rx_mcs_map
;
2239 /* By default all radios are belonging to the first group */
2241 mutex_init(&data
->mutex
);
2243 /* Enable frame retransmissions for lossy channels */
2245 hw
->max_rate_tries
= 11;
2247 /* Work to be done prior to ieee80211_register_hw() */
2249 case HWSIM_REGTEST_DISABLED
:
2250 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
2251 case HWSIM_REGTEST_DRIVER_REG_ALL
:
2252 case HWSIM_REGTEST_DIFF_COUNTRY
:
2254 * Nothing to be done for driver regulatory domain
2255 * hints prior to ieee80211_register_hw()
2258 case HWSIM_REGTEST_WORLD_ROAM
:
2260 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2261 wiphy_apply_custom_regulatory(hw
->wiphy
,
2262 &hwsim_world_regdom_custom_01
);
2265 case HWSIM_REGTEST_CUSTOM_WORLD
:
2266 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2267 wiphy_apply_custom_regulatory(hw
->wiphy
,
2268 &hwsim_world_regdom_custom_01
);
2270 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
2272 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2273 wiphy_apply_custom_regulatory(hw
->wiphy
,
2274 &hwsim_world_regdom_custom_01
);
2275 } else if (i
== 1) {
2276 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2277 wiphy_apply_custom_regulatory(hw
->wiphy
,
2278 &hwsim_world_regdom_custom_02
);
2281 case HWSIM_REGTEST_STRICT_ALL
:
2282 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2284 case HWSIM_REGTEST_STRICT_FOLLOW
:
2285 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
2287 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2289 case HWSIM_REGTEST_ALL
:
2291 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2292 wiphy_apply_custom_regulatory(hw
->wiphy
,
2293 &hwsim_world_regdom_custom_01
);
2294 } else if (i
== 1) {
2295 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2296 wiphy_apply_custom_regulatory(hw
->wiphy
,
2297 &hwsim_world_regdom_custom_02
);
2299 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2305 /* give the regulatory workqueue a chance to run */
2307 schedule_timeout_interruptible(1);
2308 err
= ieee80211_register_hw(hw
);
2310 printk(KERN_DEBUG
"mac80211_hwsim: "
2311 "ieee80211_register_hw failed (%d)\n", err
);
2315 /* Work to be done after to ieee80211_register_hw() */
2317 case HWSIM_REGTEST_WORLD_ROAM
:
2318 case HWSIM_REGTEST_DISABLED
:
2320 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
2322 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2324 case HWSIM_REGTEST_DRIVER_REG_ALL
:
2325 case HWSIM_REGTEST_STRICT_ALL
:
2326 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2328 case HWSIM_REGTEST_DIFF_COUNTRY
:
2329 if (i
< ARRAY_SIZE(hwsim_alpha2s
))
2330 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[i
]);
2332 case HWSIM_REGTEST_CUSTOM_WORLD
:
2333 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
2335 * Nothing to be done for custom world regulatory
2336 * domains after to ieee80211_register_hw
2339 case HWSIM_REGTEST_STRICT_FOLLOW
:
2341 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2343 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
2345 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2347 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
2349 case HWSIM_REGTEST_ALL
:
2351 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2353 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
2355 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[2]);
2361 wiphy_debug(hw
->wiphy
, "hwaddr %pm registered\n",
2362 hw
->wiphy
->perm_addr
);
2364 data
->debugfs
= debugfs_create_dir("hwsim",
2365 hw
->wiphy
->debugfsdir
);
2366 data
->debugfs_ps
= debugfs_create_file("ps", 0666,
2367 data
->debugfs
, data
,
2369 data
->debugfs_group
= debugfs_create_file("group", 0666,
2370 data
->debugfs
, data
,
2373 setup_timer(&data
->beacon_timer
, mac80211_hwsim_beacon
,
2374 (unsigned long) hw
);
2376 list_add_tail(&data
->list
, &hwsim_radios
);
2379 hwsim_mon
= alloc_netdev(0, "hwsim%d", hwsim_mon_setup
);
2380 if (hwsim_mon
== NULL
)
2385 err
= dev_alloc_name(hwsim_mon
, hwsim_mon
->name
);
2390 err
= register_netdevice(hwsim_mon
);
2396 err
= hwsim_init_netlink();
2403 printk(KERN_DEBUG
"mac_80211_hwsim: failed initializing netlink\n");
2408 free_netdev(hwsim_mon
);
2409 mac80211_hwsim_free();
2413 device_unregister(data
->dev
);
2415 ieee80211_free_hw(hw
);
2417 mac80211_hwsim_free();
2420 module_init(init_mac80211_hwsim
);
2422 static void __exit
exit_mac80211_hwsim(void)
2424 printk(KERN_DEBUG
"mac80211_hwsim: unregister radios\n");
2426 hwsim_exit_netlink();
2428 mac80211_hwsim_free();
2429 unregister_netdev(hwsim_mon
);
2431 module_exit(exit_mac80211_hwsim
);