2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include "mac80211_hwsim.h"
34 #define WARN_QUEUE 100
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39 MODULE_LICENSE("GPL");
41 static u32 wmediumd_portid
;
43 static int radios
= 2;
44 module_param(radios
, int, 0444);
45 MODULE_PARM_DESC(radios
, "Number of simulated radios");
47 static int channels
= 1;
48 module_param(channels
, int, 0444);
49 MODULE_PARM_DESC(channels
, "Number of concurrent channels");
51 static bool paged_rx
= false;
52 module_param(paged_rx
, bool, 0644);
53 MODULE_PARM_DESC(paged_rx
, "Use paged SKBs for RX instead of linear ones");
56 * enum hwsim_regtest - the type of regulatory tests we offer
58 * These are the different values you can use for the regtest
59 * module parameter. This is useful to help test world roaming
60 * and the driver regulatory_hint() call and combinations of these.
61 * If you want to do specific alpha2 regulatory domain tests simply
62 * use the userspace regulatory request as that will be respected as
63 * well without the need of this module parameter. This is designed
64 * only for testing the driver regulatory request, world roaming
65 * and all possible combinations.
67 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
68 * this is the default value.
69 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
70 * hint, only one driver regulatory hint will be sent as such the
71 * secondary radios are expected to follow.
72 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
73 * request with all radios reporting the same regulatory domain.
74 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
75 * different regulatory domains requests. Expected behaviour is for
76 * an intersection to occur but each device will still use their
77 * respective regulatory requested domains. Subsequent radios will
78 * use the resulting intersection.
79 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
80 * this by using a custom beacon-capable regulatory domain for the first
81 * radio. All other device world roam.
82 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
83 * domain requests. All radios will adhere to this custom world regulatory
85 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
86 * domain requests. The first radio will adhere to the first custom world
87 * regulatory domain, the second one to the second custom world regulatory
88 * domain. All other devices will world roam.
89 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
90 * settings, only the first radio will send a regulatory domain request
91 * and use strict settings. The rest of the radios are expected to follow.
92 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
93 * settings. All radios will adhere to this.
94 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
95 * domain settings, combined with secondary driver regulatory domain
96 * settings. The first radio will get a strict regulatory domain setting
97 * using the first driver regulatory request and the second radio will use
98 * non-strict settings using the second driver regulatory request. All
99 * other devices should follow the intersection created between the
101 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
102 * at least 6 radios for a complete test. We will test in this order:
103 * 1 - driver custom world regulatory domain
104 * 2 - second custom world regulatory domain
105 * 3 - first driver regulatory domain request
106 * 4 - second driver regulatory domain request
107 * 5 - strict regulatory domain settings using the third driver regulatory
109 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
110 * regulatory requests.
113 HWSIM_REGTEST_DISABLED
= 0,
114 HWSIM_REGTEST_DRIVER_REG_FOLLOW
= 1,
115 HWSIM_REGTEST_DRIVER_REG_ALL
= 2,
116 HWSIM_REGTEST_DIFF_COUNTRY
= 3,
117 HWSIM_REGTEST_WORLD_ROAM
= 4,
118 HWSIM_REGTEST_CUSTOM_WORLD
= 5,
119 HWSIM_REGTEST_CUSTOM_WORLD_2
= 6,
120 HWSIM_REGTEST_STRICT_FOLLOW
= 7,
121 HWSIM_REGTEST_STRICT_ALL
= 8,
122 HWSIM_REGTEST_STRICT_AND_DRIVER_REG
= 9,
123 HWSIM_REGTEST_ALL
= 10,
126 /* Set to one of the HWSIM_REGTEST_* values above */
127 static int regtest
= HWSIM_REGTEST_DISABLED
;
128 module_param(regtest
, int, 0444);
129 MODULE_PARM_DESC(regtest
, "The type of regulatory test we want to run");
131 static const char *hwsim_alpha2s
[] = {
140 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01
= {
144 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
145 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
146 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
147 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
151 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02
= {
155 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
156 REG_RULE(5725-10, 5850+10, 40, 0, 30,
157 NL80211_RRF_PASSIVE_SCAN
| NL80211_RRF_NO_IBSS
),
161 struct hwsim_vif_priv
{
168 #define HWSIM_VIF_MAGIC 0x69537748
170 static inline void hwsim_check_magic(struct ieee80211_vif
*vif
)
172 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
173 WARN(vp
->magic
!= HWSIM_VIF_MAGIC
,
174 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
175 vif
, vp
->magic
, vif
->addr
, vif
->type
, vif
->p2p
);
178 static inline void hwsim_set_magic(struct ieee80211_vif
*vif
)
180 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
181 vp
->magic
= HWSIM_VIF_MAGIC
;
184 static inline void hwsim_clear_magic(struct ieee80211_vif
*vif
)
186 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
190 struct hwsim_sta_priv
{
194 #define HWSIM_STA_MAGIC 0x6d537749
196 static inline void hwsim_check_sta_magic(struct ieee80211_sta
*sta
)
198 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
199 WARN_ON(sp
->magic
!= HWSIM_STA_MAGIC
);
202 static inline void hwsim_set_sta_magic(struct ieee80211_sta
*sta
)
204 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
205 sp
->magic
= HWSIM_STA_MAGIC
;
208 static inline void hwsim_clear_sta_magic(struct ieee80211_sta
*sta
)
210 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
214 struct hwsim_chanctx_priv
{
218 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
220 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf
*c
)
222 struct hwsim_chanctx_priv
*cp
= (void *)c
->drv_priv
;
223 WARN_ON(cp
->magic
!= HWSIM_CHANCTX_MAGIC
);
226 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf
*c
)
228 struct hwsim_chanctx_priv
*cp
= (void *)c
->drv_priv
;
229 cp
->magic
= HWSIM_CHANCTX_MAGIC
;
232 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf
*c
)
234 struct hwsim_chanctx_priv
*cp
= (void *)c
->drv_priv
;
238 static struct class *hwsim_class
;
240 static struct net_device
*hwsim_mon
; /* global monitor netdev */
242 #define CHAN2G(_freq) { \
243 .band = IEEE80211_BAND_2GHZ, \
244 .center_freq = (_freq), \
245 .hw_value = (_freq), \
249 #define CHAN5G(_freq) { \
250 .band = IEEE80211_BAND_5GHZ, \
251 .center_freq = (_freq), \
252 .hw_value = (_freq), \
256 static const struct ieee80211_channel hwsim_channels_2ghz
[] = {
257 CHAN2G(2412), /* Channel 1 */
258 CHAN2G(2417), /* Channel 2 */
259 CHAN2G(2422), /* Channel 3 */
260 CHAN2G(2427), /* Channel 4 */
261 CHAN2G(2432), /* Channel 5 */
262 CHAN2G(2437), /* Channel 6 */
263 CHAN2G(2442), /* Channel 7 */
264 CHAN2G(2447), /* Channel 8 */
265 CHAN2G(2452), /* Channel 9 */
266 CHAN2G(2457), /* Channel 10 */
267 CHAN2G(2462), /* Channel 11 */
268 CHAN2G(2467), /* Channel 12 */
269 CHAN2G(2472), /* Channel 13 */
270 CHAN2G(2484), /* Channel 14 */
273 static const struct ieee80211_channel hwsim_channels_5ghz
[] = {
274 CHAN5G(5180), /* Channel 36 */
275 CHAN5G(5200), /* Channel 40 */
276 CHAN5G(5220), /* Channel 44 */
277 CHAN5G(5240), /* Channel 48 */
279 CHAN5G(5260), /* Channel 52 */
280 CHAN5G(5280), /* Channel 56 */
281 CHAN5G(5300), /* Channel 60 */
282 CHAN5G(5320), /* Channel 64 */
284 CHAN5G(5500), /* Channel 100 */
285 CHAN5G(5520), /* Channel 104 */
286 CHAN5G(5540), /* Channel 108 */
287 CHAN5G(5560), /* Channel 112 */
288 CHAN5G(5580), /* Channel 116 */
289 CHAN5G(5600), /* Channel 120 */
290 CHAN5G(5620), /* Channel 124 */
291 CHAN5G(5640), /* Channel 128 */
292 CHAN5G(5660), /* Channel 132 */
293 CHAN5G(5680), /* Channel 136 */
294 CHAN5G(5700), /* Channel 140 */
296 CHAN5G(5745), /* Channel 149 */
297 CHAN5G(5765), /* Channel 153 */
298 CHAN5G(5785), /* Channel 157 */
299 CHAN5G(5805), /* Channel 161 */
300 CHAN5G(5825), /* Channel 165 */
303 static const struct ieee80211_rate hwsim_rates
[] = {
305 { .bitrate
= 20, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
306 { .bitrate
= 55, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
307 { .bitrate
= 110, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
318 static spinlock_t hwsim_radio_lock
;
319 static struct list_head hwsim_radios
;
321 struct mac80211_hwsim_data
{
322 struct list_head list
;
323 struct ieee80211_hw
*hw
;
325 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
326 struct ieee80211_channel channels_2ghz
[ARRAY_SIZE(hwsim_channels_2ghz
)];
327 struct ieee80211_channel channels_5ghz
[ARRAY_SIZE(hwsim_channels_5ghz
)];
328 struct ieee80211_rate rates
[ARRAY_SIZE(hwsim_rates
)];
330 struct mac_address addresses
[2];
332 struct ieee80211_channel
*tmp_chan
;
333 struct delayed_work roc_done
;
334 struct delayed_work hw_scan
;
335 struct cfg80211_scan_request
*hw_scan_request
;
336 struct ieee80211_vif
*hw_scan_vif
;
339 struct ieee80211_channel
*channel
;
340 u64 beacon_int
/* beacon interval in us */;
341 unsigned int rx_filter
;
342 bool started
, idle
, scanning
;
344 struct tasklet_hrtimer beacon_timer
;
346 PS_DISABLED
, PS_ENABLED
, PS_AUTO_POLL
, PS_MANUAL_POLL
348 bool ps_poll_pending
;
349 struct dentry
*debugfs
;
350 struct dentry
*debugfs_ps
;
352 struct sk_buff_head pending
; /* packets pending */
354 * Only radios in the same group can communicate together (the
355 * channel has to match too). Each bit represents a group. A
356 * radio can be in more then one group.
359 struct dentry
*debugfs_group
;
363 /* difference between this hw's clock and the real clock, in usecs */
368 struct hwsim_radiotap_hdr
{
369 struct ieee80211_radiotap_header hdr
;
377 /* MAC80211_HWSIM netlinf family */
378 static struct genl_family hwsim_genl_family
= {
379 .id
= GENL_ID_GENERATE
,
381 .name
= "MAC80211_HWSIM",
383 .maxattr
= HWSIM_ATTR_MAX
,
386 /* MAC80211_HWSIM netlink policy */
388 static struct nla_policy hwsim_genl_policy
[HWSIM_ATTR_MAX
+ 1] = {
389 [HWSIM_ATTR_ADDR_RECEIVER
] = { .type
= NLA_UNSPEC
,
390 .len
= 6*sizeof(u8
) },
391 [HWSIM_ATTR_ADDR_TRANSMITTER
] = { .type
= NLA_UNSPEC
,
392 .len
= 6*sizeof(u8
) },
393 [HWSIM_ATTR_FRAME
] = { .type
= NLA_BINARY
,
394 .len
= IEEE80211_MAX_DATA_LEN
},
395 [HWSIM_ATTR_FLAGS
] = { .type
= NLA_U32
},
396 [HWSIM_ATTR_RX_RATE
] = { .type
= NLA_U32
},
397 [HWSIM_ATTR_SIGNAL
] = { .type
= NLA_U32
},
398 [HWSIM_ATTR_TX_INFO
] = { .type
= NLA_UNSPEC
,
399 .len
= IEEE80211_TX_MAX_RATES
*sizeof(
400 struct hwsim_tx_rate
)},
401 [HWSIM_ATTR_COOKIE
] = { .type
= NLA_U64
},
404 static netdev_tx_t
hwsim_mon_xmit(struct sk_buff
*skb
,
405 struct net_device
*dev
)
407 /* TODO: allow packet injection */
412 static __le64
__mac80211_hwsim_get_tsf(struct mac80211_hwsim_data
*data
)
414 struct timeval tv
= ktime_to_timeval(ktime_get_real());
415 u64 now
= tv
.tv_sec
* USEC_PER_SEC
+ tv
.tv_usec
;
416 return cpu_to_le64(now
+ data
->tsf_offset
);
419 static u64
mac80211_hwsim_get_tsf(struct ieee80211_hw
*hw
,
420 struct ieee80211_vif
*vif
)
422 struct mac80211_hwsim_data
*data
= hw
->priv
;
423 return le64_to_cpu(__mac80211_hwsim_get_tsf(data
));
426 static void mac80211_hwsim_set_tsf(struct ieee80211_hw
*hw
,
427 struct ieee80211_vif
*vif
, u64 tsf
)
429 struct mac80211_hwsim_data
*data
= hw
->priv
;
430 u64 now
= mac80211_hwsim_get_tsf(hw
, vif
);
431 s64 delta
= tsf
- now
;
433 data
->tsf_offset
+= delta
;
436 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw
*hw
,
437 struct sk_buff
*tx_skb
,
438 struct ieee80211_channel
*chan
)
440 struct mac80211_hwsim_data
*data
= hw
->priv
;
442 struct hwsim_radiotap_hdr
*hdr
;
444 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(tx_skb
);
445 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
447 if (!netif_running(hwsim_mon
))
450 skb
= skb_copy_expand(tx_skb
, sizeof(*hdr
), 0, GFP_ATOMIC
);
454 hdr
= (struct hwsim_radiotap_hdr
*) skb_push(skb
, sizeof(*hdr
));
455 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
457 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
458 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
459 (1 << IEEE80211_RADIOTAP_RATE
) |
460 (1 << IEEE80211_RADIOTAP_TSFT
) |
461 (1 << IEEE80211_RADIOTAP_CHANNEL
));
462 hdr
->rt_tsft
= __mac80211_hwsim_get_tsf(data
);
464 hdr
->rt_rate
= txrate
->bitrate
/ 5;
465 hdr
->rt_channel
= cpu_to_le16(chan
->center_freq
);
466 flags
= IEEE80211_CHAN_2GHZ
;
467 if (txrate
->flags
& IEEE80211_RATE_ERP_G
)
468 flags
|= IEEE80211_CHAN_OFDM
;
470 flags
|= IEEE80211_CHAN_CCK
;
471 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
473 skb
->dev
= hwsim_mon
;
474 skb_set_mac_header(skb
, 0);
475 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
476 skb
->pkt_type
= PACKET_OTHERHOST
;
477 skb
->protocol
= htons(ETH_P_802_2
);
478 memset(skb
->cb
, 0, sizeof(skb
->cb
));
483 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel
*chan
,
487 struct hwsim_radiotap_hdr
*hdr
;
489 struct ieee80211_hdr
*hdr11
;
491 if (!netif_running(hwsim_mon
))
494 skb
= dev_alloc_skb(100);
498 hdr
= (struct hwsim_radiotap_hdr
*) skb_put(skb
, sizeof(*hdr
));
499 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
501 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
502 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
503 (1 << IEEE80211_RADIOTAP_CHANNEL
));
506 hdr
->rt_channel
= cpu_to_le16(chan
->center_freq
);
507 flags
= IEEE80211_CHAN_2GHZ
;
508 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
510 hdr11
= (struct ieee80211_hdr
*) skb_put(skb
, 10);
511 hdr11
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
512 IEEE80211_STYPE_ACK
);
513 hdr11
->duration_id
= cpu_to_le16(0);
514 memcpy(hdr11
->addr1
, addr
, ETH_ALEN
);
516 skb
->dev
= hwsim_mon
;
517 skb_set_mac_header(skb
, 0);
518 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
519 skb
->pkt_type
= PACKET_OTHERHOST
;
520 skb
->protocol
= htons(ETH_P_802_2
);
521 memset(skb
->cb
, 0, sizeof(skb
->cb
));
526 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data
*data
,
535 /* TODO: accept (some) Beacons by default and other frames only
536 * if pending PS-Poll has been sent */
539 /* Allow unicast frames to own address if there is a pending
541 if (data
->ps_poll_pending
&&
542 memcmp(data
->hw
->wiphy
->perm_addr
, skb
->data
+ 4,
544 data
->ps_poll_pending
= false;
554 struct mac80211_hwsim_addr_match_data
{
559 static void mac80211_hwsim_addr_iter(void *data
, u8
*mac
,
560 struct ieee80211_vif
*vif
)
562 struct mac80211_hwsim_addr_match_data
*md
= data
;
563 if (memcmp(mac
, md
->addr
, ETH_ALEN
) == 0)
568 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data
*data
,
571 struct mac80211_hwsim_addr_match_data md
;
573 if (memcmp(addr
, data
->hw
->wiphy
->perm_addr
, ETH_ALEN
) == 0)
578 ieee80211_iterate_active_interfaces_atomic(data
->hw
,
579 IEEE80211_IFACE_ITER_NORMAL
,
580 mac80211_hwsim_addr_iter
,
586 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw
*hw
,
587 struct sk_buff
*my_skb
,
591 struct mac80211_hwsim_data
*data
= hw
->priv
;
592 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) my_skb
->data
;
593 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(my_skb
);
595 unsigned int hwsim_flags
= 0;
597 struct hwsim_tx_rate tx_attempts
[IEEE80211_TX_MAX_RATES
];
599 if (data
->ps
!= PS_DISABLED
)
600 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
601 /* If the queue contains MAX_QUEUE skb's drop some */
602 if (skb_queue_len(&data
->pending
) >= MAX_QUEUE
) {
603 /* Droping until WARN_QUEUE level */
604 while (skb_queue_len(&data
->pending
) >= WARN_QUEUE
)
605 skb_dequeue(&data
->pending
);
608 skb
= genlmsg_new(GENLMSG_DEFAULT_SIZE
, GFP_ATOMIC
);
610 goto nla_put_failure
;
612 msg_head
= genlmsg_put(skb
, 0, 0, &hwsim_genl_family
, 0,
614 if (msg_head
== NULL
) {
615 printk(KERN_DEBUG
"mac80211_hwsim: problem with msg_head\n");
616 goto nla_put_failure
;
619 if (nla_put(skb
, HWSIM_ATTR_ADDR_TRANSMITTER
,
620 sizeof(struct mac_address
), data
->addresses
[1].addr
))
621 goto nla_put_failure
;
623 /* We get the skb->data */
624 if (nla_put(skb
, HWSIM_ATTR_FRAME
, my_skb
->len
, my_skb
->data
))
625 goto nla_put_failure
;
627 /* We get the flags for this transmission, and we translate them to
630 if (info
->flags
& IEEE80211_TX_CTL_REQ_TX_STATUS
)
631 hwsim_flags
|= HWSIM_TX_CTL_REQ_TX_STATUS
;
633 if (info
->flags
& IEEE80211_TX_CTL_NO_ACK
)
634 hwsim_flags
|= HWSIM_TX_CTL_NO_ACK
;
636 if (nla_put_u32(skb
, HWSIM_ATTR_FLAGS
, hwsim_flags
))
637 goto nla_put_failure
;
639 /* We get the tx control (rate and retries) info*/
641 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
642 tx_attempts
[i
].idx
= info
->status
.rates
[i
].idx
;
643 tx_attempts
[i
].count
= info
->status
.rates
[i
].count
;
646 if (nla_put(skb
, HWSIM_ATTR_TX_INFO
,
647 sizeof(struct hwsim_tx_rate
)*IEEE80211_TX_MAX_RATES
,
649 goto nla_put_failure
;
651 /* We create a cookie to identify this skb */
652 if (nla_put_u64(skb
, HWSIM_ATTR_COOKIE
, (unsigned long) my_skb
))
653 goto nla_put_failure
;
655 genlmsg_end(skb
, msg_head
);
656 genlmsg_unicast(&init_net
, skb
, dst_portid
);
658 /* Enqueue the packet */
659 skb_queue_tail(&data
->pending
, my_skb
);
663 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
666 static bool hwsim_chans_compat(struct ieee80211_channel
*c1
,
667 struct ieee80211_channel
*c2
)
672 return c1
->center_freq
== c2
->center_freq
;
675 struct tx_iter_data
{
676 struct ieee80211_channel
*channel
;
680 static void mac80211_hwsim_tx_iter(void *_data
, u8
*addr
,
681 struct ieee80211_vif
*vif
)
683 struct tx_iter_data
*data
= _data
;
685 if (!vif
->chanctx_conf
)
688 if (!hwsim_chans_compat(data
->channel
,
689 rcu_dereference(vif
->chanctx_conf
)->def
.chan
))
692 data
->receive
= true;
695 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw
*hw
,
697 struct ieee80211_channel
*chan
)
699 struct mac80211_hwsim_data
*data
= hw
->priv
, *data2
;
701 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
702 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
703 struct ieee80211_rx_status rx_status
;
704 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
706 memset(&rx_status
, 0, sizeof(rx_status
));
707 rx_status
.flag
|= RX_FLAG_MACTIME_START
;
708 rx_status
.freq
= chan
->center_freq
;
709 rx_status
.band
= chan
->band
;
710 rx_status
.rate_idx
= info
->control
.rates
[0].idx
;
711 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
712 rx_status
.flag
|= RX_FLAG_HT
;
713 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_40_MHZ_WIDTH
)
714 rx_status
.flag
|= RX_FLAG_40MHZ
;
715 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_SHORT_GI
)
716 rx_status
.flag
|= RX_FLAG_SHORT_GI
;
717 /* TODO: simulate real signal strength (and optional packet loss) */
718 rx_status
.signal
= data
->power_level
- 50;
720 if (data
->ps
!= PS_DISABLED
)
721 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
723 /* release the skb's source info */
730 /* Copy skb to all enabled radios that are on the current frequency */
731 spin_lock(&hwsim_radio_lock
);
732 list_for_each_entry(data2
, &hwsim_radios
, list
) {
733 struct sk_buff
*nskb
;
734 struct ieee80211_mgmt
*mgmt
;
735 struct tx_iter_data tx_iter_data
= {
743 if (!data2
->started
|| (data2
->idle
&& !data2
->tmp_chan
) ||
744 !hwsim_ps_rx_ok(data2
, skb
))
747 if (!(data
->group
& data2
->group
))
750 if (!hwsim_chans_compat(chan
, data2
->tmp_chan
) &&
751 !hwsim_chans_compat(chan
, data2
->channel
)) {
752 ieee80211_iterate_active_interfaces_atomic(
753 data2
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
754 mac80211_hwsim_tx_iter
, &tx_iter_data
);
755 if (!tx_iter_data
.receive
)
760 * reserve some space for our vendor and the normal
761 * radiotap header, since we're copying anyway
763 if (skb
->len
< PAGE_SIZE
&& paged_rx
) {
764 struct page
*page
= alloc_page(GFP_ATOMIC
);
769 nskb
= dev_alloc_skb(128);
775 memcpy(page_address(page
), skb
->data
, skb
->len
);
776 skb_add_rx_frag(nskb
, 0, page
, 0, skb
->len
, skb
->len
);
778 nskb
= skb_copy(skb
, GFP_ATOMIC
);
783 if (mac80211_hwsim_addr_match(data2
, hdr
->addr1
))
786 /* set bcn timestamp relative to receiver mactime */
788 le64_to_cpu(__mac80211_hwsim_get_tsf(data2
));
789 mgmt
= (struct ieee80211_mgmt
*) nskb
->data
;
790 if (ieee80211_is_beacon(mgmt
->frame_control
) ||
791 ieee80211_is_probe_resp(mgmt
->frame_control
))
792 mgmt
->u
.beacon
.timestamp
= cpu_to_le64(
794 (data
->tsf_offset
- data2
->tsf_offset
) +
795 24 * 8 * 10 / txrate
->bitrate
);
799 * Don't enable this code by default as the OUI 00:00:00
800 * is registered to Xerox so we shouldn't use it here, it
801 * might find its way into pcap files.
802 * Note that this code requires the headroom in the SKB
803 * that was allocated earlier.
805 rx_status
.vendor_radiotap_oui
[0] = 0x00;
806 rx_status
.vendor_radiotap_oui
[1] = 0x00;
807 rx_status
.vendor_radiotap_oui
[2] = 0x00;
808 rx_status
.vendor_radiotap_subns
= 127;
810 * Radiotap vendor namespaces can (and should) also be
811 * split into fields by using the standard radiotap
812 * presence bitmap mechanism. Use just BIT(0) here for
813 * the presence bitmap.
815 rx_status
.vendor_radiotap_bitmap
= BIT(0);
816 /* We have 8 bytes of (dummy) data */
817 rx_status
.vendor_radiotap_len
= 8;
818 /* For testing, also require it to be aligned */
819 rx_status
.vendor_radiotap_align
= 8;
821 memcpy(skb_push(nskb
, 8), "ABCDEFGH", 8);
824 memcpy(IEEE80211_SKB_RXCB(nskb
), &rx_status
, sizeof(rx_status
));
825 ieee80211_rx_irqsafe(data2
->hw
, nskb
);
827 spin_unlock(&hwsim_radio_lock
);
832 static void mac80211_hwsim_tx(struct ieee80211_hw
*hw
,
833 struct ieee80211_tx_control
*control
,
836 struct mac80211_hwsim_data
*data
= hw
->priv
;
837 struct ieee80211_tx_info
*txi
= IEEE80211_SKB_CB(skb
);
838 struct ieee80211_chanctx_conf
*chanctx_conf
;
839 struct ieee80211_channel
*channel
;
843 if (WARN_ON(skb
->len
< 10)) {
844 /* Should not happen; just a sanity check for addr1 use */
850 channel
= data
->channel
;
851 } else if (txi
->hw_queue
== 4) {
852 channel
= data
->tmp_chan
;
854 chanctx_conf
= rcu_dereference(txi
->control
.vif
->chanctx_conf
);
856 channel
= chanctx_conf
->def
.chan
;
861 if (WARN(!channel
, "TX w/o channel - queue = %d\n", txi
->hw_queue
)) {
866 if (data
->idle
&& !data
->tmp_chan
) {
867 wiphy_debug(hw
->wiphy
, "Trying to TX when idle - reject\n");
872 if (txi
->control
.vif
)
873 hwsim_check_magic(txi
->control
.vif
);
875 hwsim_check_sta_magic(control
->sta
);
877 txi
->rate_driver_data
[0] = channel
;
879 mac80211_hwsim_monitor_rx(hw
, skb
, channel
);
881 /* wmediumd mode check */
882 _portid
= ACCESS_ONCE(wmediumd_portid
);
885 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _portid
);
887 /* NO wmediumd detected, perfect medium simulation */
888 ack
= mac80211_hwsim_tx_frame_no_nl(hw
, skb
, channel
);
890 if (ack
&& skb
->len
>= 16) {
891 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
892 mac80211_hwsim_monitor_ack(channel
, hdr
->addr2
);
895 ieee80211_tx_info_clear_status(txi
);
897 /* frame was transmitted at most favorable rate at first attempt */
898 txi
->control
.rates
[0].count
= 1;
899 txi
->control
.rates
[1].idx
= -1;
901 if (!(txi
->flags
& IEEE80211_TX_CTL_NO_ACK
) && ack
)
902 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
903 ieee80211_tx_status_irqsafe(hw
, skb
);
907 static int mac80211_hwsim_start(struct ieee80211_hw
*hw
)
909 struct mac80211_hwsim_data
*data
= hw
->priv
;
910 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
911 data
->started
= true;
916 static void mac80211_hwsim_stop(struct ieee80211_hw
*hw
)
918 struct mac80211_hwsim_data
*data
= hw
->priv
;
919 data
->started
= false;
920 tasklet_hrtimer_cancel(&data
->beacon_timer
);
921 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
925 static int mac80211_hwsim_add_interface(struct ieee80211_hw
*hw
,
926 struct ieee80211_vif
*vif
)
928 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
929 __func__
, ieee80211_vif_type_p2p(vif
),
931 hwsim_set_magic(vif
);
934 vif
->hw_queue
[IEEE80211_AC_VO
] = 0;
935 vif
->hw_queue
[IEEE80211_AC_VI
] = 1;
936 vif
->hw_queue
[IEEE80211_AC_BE
] = 2;
937 vif
->hw_queue
[IEEE80211_AC_BK
] = 3;
943 static int mac80211_hwsim_change_interface(struct ieee80211_hw
*hw
,
944 struct ieee80211_vif
*vif
,
945 enum nl80211_iftype newtype
,
948 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
949 wiphy_debug(hw
->wiphy
,
950 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
951 __func__
, ieee80211_vif_type_p2p(vif
),
953 hwsim_check_magic(vif
);
958 static void mac80211_hwsim_remove_interface(
959 struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
961 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
962 __func__
, ieee80211_vif_type_p2p(vif
),
964 hwsim_check_magic(vif
);
965 hwsim_clear_magic(vif
);
968 static void mac80211_hwsim_tx_frame(struct ieee80211_hw
*hw
,
970 struct ieee80211_channel
*chan
)
972 u32 _pid
= ACCESS_ONCE(wmediumd_portid
);
974 mac80211_hwsim_monitor_rx(hw
, skb
, chan
);
977 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _pid
);
979 mac80211_hwsim_tx_frame_no_nl(hw
, skb
, chan
);
983 static void mac80211_hwsim_beacon_tx(void *arg
, u8
*mac
,
984 struct ieee80211_vif
*vif
)
986 struct ieee80211_hw
*hw
= arg
;
989 hwsim_check_magic(vif
);
991 if (vif
->type
!= NL80211_IFTYPE_AP
&&
992 vif
->type
!= NL80211_IFTYPE_MESH_POINT
&&
993 vif
->type
!= NL80211_IFTYPE_ADHOC
)
996 skb
= ieee80211_beacon_get(hw
, vif
);
1000 mac80211_hwsim_tx_frame(hw
, skb
,
1001 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1004 static enum hrtimer_restart
1005 mac80211_hwsim_beacon(struct hrtimer
*timer
)
1007 struct mac80211_hwsim_data
*data
=
1008 container_of(timer
, struct mac80211_hwsim_data
,
1009 beacon_timer
.timer
);
1010 struct ieee80211_hw
*hw
= data
->hw
;
1011 u64 bcn_int
= data
->beacon_int
;
1017 ieee80211_iterate_active_interfaces_atomic(
1018 hw
, IEEE80211_IFACE_ITER_NORMAL
,
1019 mac80211_hwsim_beacon_tx
, hw
);
1021 next_bcn
= ktime_add(hrtimer_get_expires(timer
),
1022 ns_to_ktime(bcn_int
* 1000));
1023 tasklet_hrtimer_start(&data
->beacon_timer
, next_bcn
, HRTIMER_MODE_ABS
);
1025 return HRTIMER_NORESTART
;
1028 static const char *hwsim_chantypes
[] = {
1029 [NL80211_CHAN_NO_HT
] = "noht",
1030 [NL80211_CHAN_HT20
] = "ht20",
1031 [NL80211_CHAN_HT40MINUS
] = "ht40-",
1032 [NL80211_CHAN_HT40PLUS
] = "ht40+",
1035 static int mac80211_hwsim_config(struct ieee80211_hw
*hw
, u32 changed
)
1037 struct mac80211_hwsim_data
*data
= hw
->priv
;
1038 struct ieee80211_conf
*conf
= &hw
->conf
;
1039 static const char *smps_modes
[IEEE80211_SMPS_NUM_MODES
] = {
1040 [IEEE80211_SMPS_AUTOMATIC
] = "auto",
1041 [IEEE80211_SMPS_OFF
] = "off",
1042 [IEEE80211_SMPS_STATIC
] = "static",
1043 [IEEE80211_SMPS_DYNAMIC
] = "dynamic",
1046 wiphy_debug(hw
->wiphy
,
1047 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1049 conf
->channel
? conf
->channel
->center_freq
: 0,
1050 hwsim_chantypes
[conf
->channel_type
],
1051 !!(conf
->flags
& IEEE80211_CONF_IDLE
),
1052 !!(conf
->flags
& IEEE80211_CONF_PS
),
1053 smps_modes
[conf
->smps_mode
]);
1055 data
->idle
= !!(conf
->flags
& IEEE80211_CONF_IDLE
);
1057 data
->channel
= conf
->channel
;
1059 WARN_ON(data
->channel
&& channels
> 1);
1061 data
->power_level
= conf
->power_level
;
1062 if (!data
->started
|| !data
->beacon_int
)
1063 tasklet_hrtimer_cancel(&data
->beacon_timer
);
1064 else if (!hrtimer_is_queued(&data
->beacon_timer
.timer
)) {
1065 tasklet_hrtimer_start(&data
->beacon_timer
,
1066 ns_to_ktime(data
->beacon_int
* 1000),
1074 static void mac80211_hwsim_configure_filter(struct ieee80211_hw
*hw
,
1075 unsigned int changed_flags
,
1076 unsigned int *total_flags
,u64 multicast
)
1078 struct mac80211_hwsim_data
*data
= hw
->priv
;
1080 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
1082 data
->rx_filter
= 0;
1083 if (*total_flags
& FIF_PROMISC_IN_BSS
)
1084 data
->rx_filter
|= FIF_PROMISC_IN_BSS
;
1085 if (*total_flags
& FIF_ALLMULTI
)
1086 data
->rx_filter
|= FIF_ALLMULTI
;
1088 *total_flags
= data
->rx_filter
;
1091 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw
*hw
,
1092 struct ieee80211_vif
*vif
,
1093 struct ieee80211_bss_conf
*info
,
1096 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1097 struct mac80211_hwsim_data
*data
= hw
->priv
;
1099 hwsim_check_magic(vif
);
1101 wiphy_debug(hw
->wiphy
, "%s(changed=0x%x)\n", __func__
, changed
);
1103 if (changed
& BSS_CHANGED_BSSID
) {
1104 wiphy_debug(hw
->wiphy
, "%s: BSSID changed: %pM\n",
1105 __func__
, info
->bssid
);
1106 memcpy(vp
->bssid
, info
->bssid
, ETH_ALEN
);
1109 if (changed
& BSS_CHANGED_ASSOC
) {
1110 wiphy_debug(hw
->wiphy
, " ASSOC: assoc=%d aid=%d\n",
1111 info
->assoc
, info
->aid
);
1112 vp
->assoc
= info
->assoc
;
1113 vp
->aid
= info
->aid
;
1116 if (changed
& BSS_CHANGED_BEACON_INT
) {
1117 wiphy_debug(hw
->wiphy
, " BCNINT: %d\n", info
->beacon_int
);
1118 data
->beacon_int
= info
->beacon_int
* 1024;
1121 if (changed
& BSS_CHANGED_BEACON_ENABLED
) {
1122 wiphy_debug(hw
->wiphy
, " BCN EN: %d\n", info
->enable_beacon
);
1123 if (data
->started
&&
1124 !hrtimer_is_queued(&data
->beacon_timer
.timer
) &&
1125 info
->enable_beacon
) {
1126 if (WARN_ON(!data
->beacon_int
))
1127 data
->beacon_int
= 1000 * 1024;
1128 tasklet_hrtimer_start(&data
->beacon_timer
,
1129 ns_to_ktime(data
->beacon_int
*
1132 } else if (!info
->enable_beacon
)
1133 tasklet_hrtimer_cancel(&data
->beacon_timer
);
1136 if (changed
& BSS_CHANGED_ERP_CTS_PROT
) {
1137 wiphy_debug(hw
->wiphy
, " ERP_CTS_PROT: %d\n",
1138 info
->use_cts_prot
);
1141 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
1142 wiphy_debug(hw
->wiphy
, " ERP_PREAMBLE: %d\n",
1143 info
->use_short_preamble
);
1146 if (changed
& BSS_CHANGED_ERP_SLOT
) {
1147 wiphy_debug(hw
->wiphy
, " ERP_SLOT: %d\n", info
->use_short_slot
);
1150 if (changed
& BSS_CHANGED_HT
) {
1151 wiphy_debug(hw
->wiphy
, " HT: op_mode=0x%x\n",
1152 info
->ht_operation_mode
);
1155 if (changed
& BSS_CHANGED_BASIC_RATES
) {
1156 wiphy_debug(hw
->wiphy
, " BASIC_RATES: 0x%llx\n",
1157 (unsigned long long) info
->basic_rates
);
1160 if (changed
& BSS_CHANGED_TXPOWER
)
1161 wiphy_debug(hw
->wiphy
, " TX Power: %d dBm\n", info
->txpower
);
1164 static int mac80211_hwsim_sta_add(struct ieee80211_hw
*hw
,
1165 struct ieee80211_vif
*vif
,
1166 struct ieee80211_sta
*sta
)
1168 hwsim_check_magic(vif
);
1169 hwsim_set_sta_magic(sta
);
1174 static int mac80211_hwsim_sta_remove(struct ieee80211_hw
*hw
,
1175 struct ieee80211_vif
*vif
,
1176 struct ieee80211_sta
*sta
)
1178 hwsim_check_magic(vif
);
1179 hwsim_clear_sta_magic(sta
);
1184 static void mac80211_hwsim_sta_notify(struct ieee80211_hw
*hw
,
1185 struct ieee80211_vif
*vif
,
1186 enum sta_notify_cmd cmd
,
1187 struct ieee80211_sta
*sta
)
1189 hwsim_check_magic(vif
);
1192 case STA_NOTIFY_SLEEP
:
1193 case STA_NOTIFY_AWAKE
:
1194 /* TODO: make good use of these flags */
1197 WARN(1, "Invalid sta notify: %d\n", cmd
);
1202 static int mac80211_hwsim_set_tim(struct ieee80211_hw
*hw
,
1203 struct ieee80211_sta
*sta
,
1206 hwsim_check_sta_magic(sta
);
1210 static int mac80211_hwsim_conf_tx(
1211 struct ieee80211_hw
*hw
,
1212 struct ieee80211_vif
*vif
, u16 queue
,
1213 const struct ieee80211_tx_queue_params
*params
)
1215 wiphy_debug(hw
->wiphy
,
1216 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1218 params
->txop
, params
->cw_min
,
1219 params
->cw_max
, params
->aifs
);
1223 static int mac80211_hwsim_get_survey(
1224 struct ieee80211_hw
*hw
, int idx
,
1225 struct survey_info
*survey
)
1227 struct ieee80211_conf
*conf
= &hw
->conf
;
1229 wiphy_debug(hw
->wiphy
, "%s (idx=%d)\n", __func__
, idx
);
1234 /* Current channel */
1235 survey
->channel
= conf
->channel
;
1238 * Magically conjured noise level --- this is only ok for simulated hardware.
1240 * A real driver which cannot determine the real channel noise MUST NOT
1241 * report any noise, especially not a magically conjured one :-)
1243 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
1244 survey
->noise
= -92;
1249 #ifdef CONFIG_NL80211_TESTMODE
1251 * This section contains example code for using netlink
1252 * attributes with the testmode command in nl80211.
1255 /* These enums need to be kept in sync with userspace */
1256 enum hwsim_testmode_attr
{
1257 __HWSIM_TM_ATTR_INVALID
= 0,
1258 HWSIM_TM_ATTR_CMD
= 1,
1259 HWSIM_TM_ATTR_PS
= 2,
1262 __HWSIM_TM_ATTR_AFTER_LAST
,
1263 HWSIM_TM_ATTR_MAX
= __HWSIM_TM_ATTR_AFTER_LAST
- 1
1266 enum hwsim_testmode_cmd
{
1267 HWSIM_TM_CMD_SET_PS
= 0,
1268 HWSIM_TM_CMD_GET_PS
= 1,
1269 HWSIM_TM_CMD_STOP_QUEUES
= 2,
1270 HWSIM_TM_CMD_WAKE_QUEUES
= 3,
1273 static const struct nla_policy hwsim_testmode_policy
[HWSIM_TM_ATTR_MAX
+ 1] = {
1274 [HWSIM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
1275 [HWSIM_TM_ATTR_PS
] = { .type
= NLA_U32
},
1278 static int hwsim_fops_ps_write(void *dat
, u64 val
);
1280 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw
*hw
,
1281 void *data
, int len
)
1283 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1284 struct nlattr
*tb
[HWSIM_TM_ATTR_MAX
+ 1];
1285 struct sk_buff
*skb
;
1288 err
= nla_parse(tb
, HWSIM_TM_ATTR_MAX
, data
, len
,
1289 hwsim_testmode_policy
);
1293 if (!tb
[HWSIM_TM_ATTR_CMD
])
1296 switch (nla_get_u32(tb
[HWSIM_TM_ATTR_CMD
])) {
1297 case HWSIM_TM_CMD_SET_PS
:
1298 if (!tb
[HWSIM_TM_ATTR_PS
])
1300 ps
= nla_get_u32(tb
[HWSIM_TM_ATTR_PS
]);
1301 return hwsim_fops_ps_write(hwsim
, ps
);
1302 case HWSIM_TM_CMD_GET_PS
:
1303 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
1304 nla_total_size(sizeof(u32
)));
1307 if (nla_put_u32(skb
, HWSIM_TM_ATTR_PS
, hwsim
->ps
))
1308 goto nla_put_failure
;
1309 return cfg80211_testmode_reply(skb
);
1310 case HWSIM_TM_CMD_STOP_QUEUES
:
1311 ieee80211_stop_queues(hw
);
1313 case HWSIM_TM_CMD_WAKE_QUEUES
:
1314 ieee80211_wake_queues(hw
);
1326 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw
*hw
,
1327 struct ieee80211_vif
*vif
,
1328 enum ieee80211_ampdu_mlme_action action
,
1329 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
1333 case IEEE80211_AMPDU_TX_START
:
1334 ieee80211_start_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1336 case IEEE80211_AMPDU_TX_STOP_CONT
:
1337 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
1338 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
1339 ieee80211_stop_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1341 case IEEE80211_AMPDU_TX_OPERATIONAL
:
1343 case IEEE80211_AMPDU_RX_START
:
1344 case IEEE80211_AMPDU_RX_STOP
:
1353 static void mac80211_hwsim_flush(struct ieee80211_hw
*hw
, bool drop
)
1355 /* Not implemented, queues only on kernel side */
1358 static void hw_scan_work(struct work_struct
*work
)
1360 struct mac80211_hwsim_data
*hwsim
=
1361 container_of(work
, struct mac80211_hwsim_data
, hw_scan
.work
);
1362 struct cfg80211_scan_request
*req
= hwsim
->hw_scan_request
;
1365 mutex_lock(&hwsim
->mutex
);
1366 if (hwsim
->scan_chan_idx
>= req
->n_channels
) {
1367 wiphy_debug(hwsim
->hw
->wiphy
, "hw scan complete\n");
1368 ieee80211_scan_completed(hwsim
->hw
, false);
1369 hwsim
->hw_scan_request
= NULL
;
1370 hwsim
->hw_scan_vif
= NULL
;
1371 hwsim
->tmp_chan
= NULL
;
1372 mutex_unlock(&hwsim
->mutex
);
1376 wiphy_debug(hwsim
->hw
->wiphy
, "hw scan %d MHz\n",
1377 req
->channels
[hwsim
->scan_chan_idx
]->center_freq
);
1379 hwsim
->tmp_chan
= req
->channels
[hwsim
->scan_chan_idx
];
1380 if (hwsim
->tmp_chan
->flags
& IEEE80211_CHAN_PASSIVE_SCAN
||
1386 for (i
= 0; i
< req
->n_ssids
; i
++) {
1387 struct sk_buff
*probe
;
1389 probe
= ieee80211_probereq_get(hwsim
->hw
,
1392 req
->ssids
[i
].ssid_len
,
1398 memcpy(skb_put(probe
, req
->ie_len
), req
->ie
,
1402 mac80211_hwsim_tx_frame(hwsim
->hw
, probe
,
1407 ieee80211_queue_delayed_work(hwsim
->hw
, &hwsim
->hw_scan
,
1408 msecs_to_jiffies(dwell
));
1409 hwsim
->scan_chan_idx
++;
1410 mutex_unlock(&hwsim
->mutex
);
1413 static int mac80211_hwsim_hw_scan(struct ieee80211_hw
*hw
,
1414 struct ieee80211_vif
*vif
,
1415 struct cfg80211_scan_request
*req
)
1417 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1419 mutex_lock(&hwsim
->mutex
);
1420 if (WARN_ON(hwsim
->tmp_chan
|| hwsim
->hw_scan_request
)) {
1421 mutex_unlock(&hwsim
->mutex
);
1424 hwsim
->hw_scan_request
= req
;
1425 hwsim
->hw_scan_vif
= vif
;
1426 hwsim
->scan_chan_idx
= 0;
1427 mutex_unlock(&hwsim
->mutex
);
1429 wiphy_debug(hw
->wiphy
, "hwsim hw_scan request\n");
1431 ieee80211_queue_delayed_work(hwsim
->hw
, &hwsim
->hw_scan
, 0);
1436 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw
*hw
,
1437 struct ieee80211_vif
*vif
)
1439 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1441 wiphy_debug(hw
->wiphy
, "hwsim cancel_hw_scan\n");
1443 cancel_delayed_work_sync(&hwsim
->hw_scan
);
1445 mutex_lock(&hwsim
->mutex
);
1446 ieee80211_scan_completed(hwsim
->hw
, true);
1447 hwsim
->tmp_chan
= NULL
;
1448 hwsim
->hw_scan_request
= NULL
;
1449 hwsim
->hw_scan_vif
= NULL
;
1450 mutex_unlock(&hwsim
->mutex
);
1453 static void mac80211_hwsim_sw_scan(struct ieee80211_hw
*hw
)
1455 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1457 mutex_lock(&hwsim
->mutex
);
1459 if (hwsim
->scanning
) {
1460 printk(KERN_DEBUG
"two hwsim sw_scans detected!\n");
1464 printk(KERN_DEBUG
"hwsim sw_scan request, prepping stuff\n");
1465 hwsim
->scanning
= true;
1468 mutex_unlock(&hwsim
->mutex
);
1471 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw
*hw
)
1473 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1475 mutex_lock(&hwsim
->mutex
);
1477 printk(KERN_DEBUG
"hwsim sw_scan_complete\n");
1478 hwsim
->scanning
= false;
1480 mutex_unlock(&hwsim
->mutex
);
1483 static void hw_roc_done(struct work_struct
*work
)
1485 struct mac80211_hwsim_data
*hwsim
=
1486 container_of(work
, struct mac80211_hwsim_data
, roc_done
.work
);
1488 mutex_lock(&hwsim
->mutex
);
1489 ieee80211_remain_on_channel_expired(hwsim
->hw
);
1490 hwsim
->tmp_chan
= NULL
;
1491 mutex_unlock(&hwsim
->mutex
);
1493 wiphy_debug(hwsim
->hw
->wiphy
, "hwsim ROC expired\n");
1496 static int mac80211_hwsim_roc(struct ieee80211_hw
*hw
,
1497 struct ieee80211_vif
*vif
,
1498 struct ieee80211_channel
*chan
,
1501 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1503 mutex_lock(&hwsim
->mutex
);
1504 if (WARN_ON(hwsim
->tmp_chan
|| hwsim
->hw_scan_request
)) {
1505 mutex_unlock(&hwsim
->mutex
);
1509 hwsim
->tmp_chan
= chan
;
1510 mutex_unlock(&hwsim
->mutex
);
1512 wiphy_debug(hw
->wiphy
, "hwsim ROC (%d MHz, %d ms)\n",
1513 chan
->center_freq
, duration
);
1515 ieee80211_ready_on_channel(hw
);
1517 ieee80211_queue_delayed_work(hw
, &hwsim
->roc_done
,
1518 msecs_to_jiffies(duration
));
1522 static int mac80211_hwsim_croc(struct ieee80211_hw
*hw
)
1524 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1526 cancel_delayed_work_sync(&hwsim
->roc_done
);
1528 mutex_lock(&hwsim
->mutex
);
1529 hwsim
->tmp_chan
= NULL
;
1530 mutex_unlock(&hwsim
->mutex
);
1532 wiphy_debug(hw
->wiphy
, "hwsim ROC canceled\n");
1537 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw
*hw
,
1538 struct ieee80211_chanctx_conf
*ctx
)
1540 hwsim_set_chanctx_magic(ctx
);
1541 wiphy_debug(hw
->wiphy
,
1542 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1543 ctx
->def
.chan
->center_freq
, ctx
->def
.width
,
1544 ctx
->def
.center_freq1
, ctx
->def
.center_freq2
);
1548 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw
*hw
,
1549 struct ieee80211_chanctx_conf
*ctx
)
1551 wiphy_debug(hw
->wiphy
,
1552 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1553 ctx
->def
.chan
->center_freq
, ctx
->def
.width
,
1554 ctx
->def
.center_freq1
, ctx
->def
.center_freq2
);
1555 hwsim_check_chanctx_magic(ctx
);
1556 hwsim_clear_chanctx_magic(ctx
);
1559 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw
*hw
,
1560 struct ieee80211_chanctx_conf
*ctx
,
1563 hwsim_check_chanctx_magic(ctx
);
1564 wiphy_debug(hw
->wiphy
,
1565 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1566 ctx
->def
.chan
->center_freq
, ctx
->def
.width
,
1567 ctx
->def
.center_freq1
, ctx
->def
.center_freq2
);
1570 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw
*hw
,
1571 struct ieee80211_vif
*vif
,
1572 struct ieee80211_chanctx_conf
*ctx
)
1574 hwsim_check_magic(vif
);
1575 hwsim_check_chanctx_magic(ctx
);
1580 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
1581 struct ieee80211_vif
*vif
,
1582 struct ieee80211_chanctx_conf
*ctx
)
1584 hwsim_check_magic(vif
);
1585 hwsim_check_chanctx_magic(ctx
);
1588 static struct ieee80211_ops mac80211_hwsim_ops
=
1590 .tx
= mac80211_hwsim_tx
,
1591 .start
= mac80211_hwsim_start
,
1592 .stop
= mac80211_hwsim_stop
,
1593 .add_interface
= mac80211_hwsim_add_interface
,
1594 .change_interface
= mac80211_hwsim_change_interface
,
1595 .remove_interface
= mac80211_hwsim_remove_interface
,
1596 .config
= mac80211_hwsim_config
,
1597 .configure_filter
= mac80211_hwsim_configure_filter
,
1598 .bss_info_changed
= mac80211_hwsim_bss_info_changed
,
1599 .sta_add
= mac80211_hwsim_sta_add
,
1600 .sta_remove
= mac80211_hwsim_sta_remove
,
1601 .sta_notify
= mac80211_hwsim_sta_notify
,
1602 .set_tim
= mac80211_hwsim_set_tim
,
1603 .conf_tx
= mac80211_hwsim_conf_tx
,
1604 .get_survey
= mac80211_hwsim_get_survey
,
1605 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd
)
1606 .ampdu_action
= mac80211_hwsim_ampdu_action
,
1607 .sw_scan_start
= mac80211_hwsim_sw_scan
,
1608 .sw_scan_complete
= mac80211_hwsim_sw_scan_complete
,
1609 .flush
= mac80211_hwsim_flush
,
1610 .get_tsf
= mac80211_hwsim_get_tsf
,
1611 .set_tsf
= mac80211_hwsim_set_tsf
,
1615 static void mac80211_hwsim_free(void)
1617 struct list_head tmplist
, *i
, *tmp
;
1618 struct mac80211_hwsim_data
*data
, *tmpdata
;
1620 INIT_LIST_HEAD(&tmplist
);
1622 spin_lock_bh(&hwsim_radio_lock
);
1623 list_for_each_safe(i
, tmp
, &hwsim_radios
)
1624 list_move(i
, &tmplist
);
1625 spin_unlock_bh(&hwsim_radio_lock
);
1627 list_for_each_entry_safe(data
, tmpdata
, &tmplist
, list
) {
1628 debugfs_remove(data
->debugfs_group
);
1629 debugfs_remove(data
->debugfs_ps
);
1630 debugfs_remove(data
->debugfs
);
1631 ieee80211_unregister_hw(data
->hw
);
1632 device_unregister(data
->dev
);
1633 ieee80211_free_hw(data
->hw
);
1635 class_destroy(hwsim_class
);
1639 static struct device_driver mac80211_hwsim_driver
= {
1640 .name
= "mac80211_hwsim"
1643 static const struct net_device_ops hwsim_netdev_ops
= {
1644 .ndo_start_xmit
= hwsim_mon_xmit
,
1645 .ndo_change_mtu
= eth_change_mtu
,
1646 .ndo_set_mac_address
= eth_mac_addr
,
1647 .ndo_validate_addr
= eth_validate_addr
,
1650 static void hwsim_mon_setup(struct net_device
*dev
)
1652 dev
->netdev_ops
= &hwsim_netdev_ops
;
1653 dev
->destructor
= free_netdev
;
1655 dev
->tx_queue_len
= 0;
1656 dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1657 memset(dev
->dev_addr
, 0, ETH_ALEN
);
1658 dev
->dev_addr
[0] = 0x12;
1662 static void hwsim_send_ps_poll(void *dat
, u8
*mac
, struct ieee80211_vif
*vif
)
1664 struct mac80211_hwsim_data
*data
= dat
;
1665 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1666 struct sk_buff
*skb
;
1667 struct ieee80211_pspoll
*pspoll
;
1672 wiphy_debug(data
->hw
->wiphy
,
1673 "%s: send PS-Poll to %pM for aid %d\n",
1674 __func__
, vp
->bssid
, vp
->aid
);
1676 skb
= dev_alloc_skb(sizeof(*pspoll
));
1679 pspoll
= (void *) skb_put(skb
, sizeof(*pspoll
));
1680 pspoll
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
1681 IEEE80211_STYPE_PSPOLL
|
1683 pspoll
->aid
= cpu_to_le16(0xc000 | vp
->aid
);
1684 memcpy(pspoll
->bssid
, vp
->bssid
, ETH_ALEN
);
1685 memcpy(pspoll
->ta
, mac
, ETH_ALEN
);
1688 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1689 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1693 static void hwsim_send_nullfunc(struct mac80211_hwsim_data
*data
, u8
*mac
,
1694 struct ieee80211_vif
*vif
, int ps
)
1696 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1697 struct sk_buff
*skb
;
1698 struct ieee80211_hdr
*hdr
;
1703 wiphy_debug(data
->hw
->wiphy
,
1704 "%s: send data::nullfunc to %pM ps=%d\n",
1705 __func__
, vp
->bssid
, ps
);
1707 skb
= dev_alloc_skb(sizeof(*hdr
));
1710 hdr
= (void *) skb_put(skb
, sizeof(*hdr
) - ETH_ALEN
);
1711 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
1712 IEEE80211_STYPE_NULLFUNC
|
1713 (ps
? IEEE80211_FCTL_PM
: 0));
1714 hdr
->duration_id
= cpu_to_le16(0);
1715 memcpy(hdr
->addr1
, vp
->bssid
, ETH_ALEN
);
1716 memcpy(hdr
->addr2
, mac
, ETH_ALEN
);
1717 memcpy(hdr
->addr3
, vp
->bssid
, ETH_ALEN
);
1720 mac80211_hwsim_tx_frame(data
->hw
, skb
,
1721 rcu_dereference(vif
->chanctx_conf
)->def
.chan
);
1726 static void hwsim_send_nullfunc_ps(void *dat
, u8
*mac
,
1727 struct ieee80211_vif
*vif
)
1729 struct mac80211_hwsim_data
*data
= dat
;
1730 hwsim_send_nullfunc(data
, mac
, vif
, 1);
1734 static void hwsim_send_nullfunc_no_ps(void *dat
, u8
*mac
,
1735 struct ieee80211_vif
*vif
)
1737 struct mac80211_hwsim_data
*data
= dat
;
1738 hwsim_send_nullfunc(data
, mac
, vif
, 0);
1742 static int hwsim_fops_ps_read(void *dat
, u64
*val
)
1744 struct mac80211_hwsim_data
*data
= dat
;
1749 static int hwsim_fops_ps_write(void *dat
, u64 val
)
1751 struct mac80211_hwsim_data
*data
= dat
;
1752 enum ps_mode old_ps
;
1754 if (val
!= PS_DISABLED
&& val
!= PS_ENABLED
&& val
!= PS_AUTO_POLL
&&
1755 val
!= PS_MANUAL_POLL
)
1761 if (val
== PS_MANUAL_POLL
) {
1762 ieee80211_iterate_active_interfaces(data
->hw
,
1763 IEEE80211_IFACE_ITER_NORMAL
,
1764 hwsim_send_ps_poll
, data
);
1765 data
->ps_poll_pending
= true;
1766 } else if (old_ps
== PS_DISABLED
&& val
!= PS_DISABLED
) {
1767 ieee80211_iterate_active_interfaces(data
->hw
,
1768 IEEE80211_IFACE_ITER_NORMAL
,
1769 hwsim_send_nullfunc_ps
,
1771 } else if (old_ps
!= PS_DISABLED
&& val
== PS_DISABLED
) {
1772 ieee80211_iterate_active_interfaces(data
->hw
,
1773 IEEE80211_IFACE_ITER_NORMAL
,
1774 hwsim_send_nullfunc_no_ps
,
1781 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps
, hwsim_fops_ps_read
, hwsim_fops_ps_write
,
1785 static int hwsim_fops_group_read(void *dat
, u64
*val
)
1787 struct mac80211_hwsim_data
*data
= dat
;
1792 static int hwsim_fops_group_write(void *dat
, u64 val
)
1794 struct mac80211_hwsim_data
*data
= dat
;
1799 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group
,
1800 hwsim_fops_group_read
, hwsim_fops_group_write
,
1803 static struct mac80211_hwsim_data
*get_hwsim_data_ref_from_addr(
1804 struct mac_address
*addr
)
1806 struct mac80211_hwsim_data
*data
;
1807 bool _found
= false;
1809 spin_lock_bh(&hwsim_radio_lock
);
1810 list_for_each_entry(data
, &hwsim_radios
, list
) {
1811 if (memcmp(data
->addresses
[1].addr
, addr
,
1812 sizeof(struct mac_address
)) == 0) {
1817 spin_unlock_bh(&hwsim_radio_lock
);
1825 static int hwsim_tx_info_frame_received_nl(struct sk_buff
*skb_2
,
1826 struct genl_info
*info
)
1829 struct ieee80211_hdr
*hdr
;
1830 struct mac80211_hwsim_data
*data2
;
1831 struct ieee80211_tx_info
*txi
;
1832 struct hwsim_tx_rate
*tx_attempts
;
1833 unsigned long ret_skb_ptr
;
1834 struct sk_buff
*skb
, *tmp
;
1835 struct mac_address
*src
;
1836 unsigned int hwsim_flags
;
1841 if (!info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
] ||
1842 !info
->attrs
[HWSIM_ATTR_FLAGS
] ||
1843 !info
->attrs
[HWSIM_ATTR_COOKIE
] ||
1844 !info
->attrs
[HWSIM_ATTR_TX_INFO
])
1847 src
= (struct mac_address
*)nla_data(
1848 info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
]);
1849 hwsim_flags
= nla_get_u32(info
->attrs
[HWSIM_ATTR_FLAGS
]);
1851 ret_skb_ptr
= nla_get_u64(info
->attrs
[HWSIM_ATTR_COOKIE
]);
1853 data2
= get_hwsim_data_ref_from_addr(src
);
1858 /* look for the skb matching the cookie passed back from user */
1859 skb_queue_walk_safe(&data2
->pending
, skb
, tmp
) {
1860 if ((unsigned long)skb
== ret_skb_ptr
) {
1861 skb_unlink(skb
, &data2
->pending
);
1871 /* Tx info received because the frame was broadcasted on user space,
1872 so we get all the necessary info: tx attempts and skb control buff */
1874 tx_attempts
= (struct hwsim_tx_rate
*)nla_data(
1875 info
->attrs
[HWSIM_ATTR_TX_INFO
]);
1877 /* now send back TX status */
1878 txi
= IEEE80211_SKB_CB(skb
);
1880 ieee80211_tx_info_clear_status(txi
);
1882 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
1883 txi
->status
.rates
[i
].idx
= tx_attempts
[i
].idx
;
1884 txi
->status
.rates
[i
].count
= tx_attempts
[i
].count
;
1885 /*txi->status.rates[i].flags = 0;*/
1888 txi
->status
.ack_signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1890 if (!(hwsim_flags
& HWSIM_TX_CTL_NO_ACK
) &&
1891 (hwsim_flags
& HWSIM_TX_STAT_ACK
)) {
1892 if (skb
->len
>= 16) {
1893 hdr
= (struct ieee80211_hdr
*) skb
->data
;
1894 mac80211_hwsim_monitor_ack(txi
->rate_driver_data
[0],
1897 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
1899 ieee80211_tx_status_irqsafe(data2
->hw
, skb
);
1906 static int hwsim_cloned_frame_received_nl(struct sk_buff
*skb_2
,
1907 struct genl_info
*info
)
1910 struct mac80211_hwsim_data
*data2
;
1911 struct ieee80211_rx_status rx_status
;
1912 struct mac_address
*dst
;
1915 struct sk_buff
*skb
= NULL
;
1917 if (!info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
] ||
1918 !info
->attrs
[HWSIM_ATTR_FRAME
] ||
1919 !info
->attrs
[HWSIM_ATTR_RX_RATE
] ||
1920 !info
->attrs
[HWSIM_ATTR_SIGNAL
])
1923 dst
= (struct mac_address
*)nla_data(
1924 info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
]);
1926 frame_data_len
= nla_len(info
->attrs
[HWSIM_ATTR_FRAME
]);
1927 frame_data
= (char *)nla_data(info
->attrs
[HWSIM_ATTR_FRAME
]);
1929 /* Allocate new skb here */
1930 skb
= alloc_skb(frame_data_len
, GFP_KERNEL
);
1934 if (frame_data_len
<= IEEE80211_MAX_DATA_LEN
) {
1936 memcpy(skb_put(skb
, frame_data_len
), frame_data
,
1941 data2
= get_hwsim_data_ref_from_addr(dst
);
1946 /* check if radio is configured properly */
1948 if (data2
->idle
|| !data2
->started
)
1951 /*A frame is received from user space*/
1952 memset(&rx_status
, 0, sizeof(rx_status
));
1953 rx_status
.freq
= data2
->channel
->center_freq
;
1954 rx_status
.band
= data2
->channel
->band
;
1955 rx_status
.rate_idx
= nla_get_u32(info
->attrs
[HWSIM_ATTR_RX_RATE
]);
1956 rx_status
.signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1958 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
1959 ieee80211_rx_irqsafe(data2
->hw
, skb
);
1963 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1970 static int hwsim_register_received_nl(struct sk_buff
*skb_2
,
1971 struct genl_info
*info
)
1976 wmediumd_portid
= info
->snd_portid
;
1978 printk(KERN_DEBUG
"mac80211_hwsim: received a REGISTER, "
1979 "switching to wmediumd mode with pid %d\n", info
->snd_portid
);
1983 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
1987 /* Generic Netlink operations array */
1988 static struct genl_ops hwsim_ops
[] = {
1990 .cmd
= HWSIM_CMD_REGISTER
,
1991 .policy
= hwsim_genl_policy
,
1992 .doit
= hwsim_register_received_nl
,
1993 .flags
= GENL_ADMIN_PERM
,
1996 .cmd
= HWSIM_CMD_FRAME
,
1997 .policy
= hwsim_genl_policy
,
1998 .doit
= hwsim_cloned_frame_received_nl
,
2001 .cmd
= HWSIM_CMD_TX_INFO_FRAME
,
2002 .policy
= hwsim_genl_policy
,
2003 .doit
= hwsim_tx_info_frame_received_nl
,
2007 static int mac80211_hwsim_netlink_notify(struct notifier_block
*nb
,
2008 unsigned long state
,
2011 struct netlink_notify
*notify
= _notify
;
2013 if (state
!= NETLINK_URELEASE
)
2016 if (notify
->portid
== wmediumd_portid
) {
2017 printk(KERN_INFO
"mac80211_hwsim: wmediumd released netlink"
2018 " socket, switching to perfect channel medium\n");
2019 wmediumd_portid
= 0;
2025 static struct notifier_block hwsim_netlink_notifier
= {
2026 .notifier_call
= mac80211_hwsim_netlink_notify
,
2029 static int hwsim_init_netlink(void)
2033 /* userspace test API hasn't been adjusted for multi-channel */
2037 printk(KERN_INFO
"mac80211_hwsim: initializing netlink\n");
2039 rc
= genl_register_family_with_ops(&hwsim_genl_family
,
2040 hwsim_ops
, ARRAY_SIZE(hwsim_ops
));
2044 rc
= netlink_register_notifier(&hwsim_netlink_notifier
);
2051 printk(KERN_DEBUG
"mac80211_hwsim: error occurred in %s\n", __func__
);
2055 static void hwsim_exit_netlink(void)
2059 /* userspace test API hasn't been adjusted for multi-channel */
2063 printk(KERN_INFO
"mac80211_hwsim: closing netlink\n");
2064 /* unregister the notifier */
2065 netlink_unregister_notifier(&hwsim_netlink_notifier
);
2066 /* unregister the family */
2067 ret
= genl_unregister_family(&hwsim_genl_family
);
2069 printk(KERN_DEBUG
"mac80211_hwsim: "
2070 "unregister family %i\n", ret
);
2073 static const struct ieee80211_iface_limit hwsim_if_limits
[] = {
2074 { .max
= 1, .types
= BIT(NL80211_IFTYPE_ADHOC
) },
2075 { .max
= 2048, .types
= BIT(NL80211_IFTYPE_STATION
) |
2076 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2077 #ifdef CONFIG_MAC80211_MESH
2078 BIT(NL80211_IFTYPE_MESH_POINT
) |
2080 BIT(NL80211_IFTYPE_AP
) |
2081 BIT(NL80211_IFTYPE_P2P_GO
) },
2082 { .max
= 1, .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
) },
2085 static struct ieee80211_iface_combination hwsim_if_comb
= {
2086 .limits
= hwsim_if_limits
,
2087 .n_limits
= ARRAY_SIZE(hwsim_if_limits
),
2088 .max_interfaces
= 2048,
2089 .num_different_channels
= 1,
2092 static int __init
init_mac80211_hwsim(void)
2096 struct mac80211_hwsim_data
*data
;
2097 struct ieee80211_hw
*hw
;
2098 enum ieee80211_band band
;
2100 if (radios
< 1 || radios
> 100)
2107 hwsim_if_comb
.num_different_channels
= channels
;
2108 mac80211_hwsim_ops
.hw_scan
= mac80211_hwsim_hw_scan
;
2109 mac80211_hwsim_ops
.cancel_hw_scan
=
2110 mac80211_hwsim_cancel_hw_scan
;
2111 mac80211_hwsim_ops
.sw_scan_start
= NULL
;
2112 mac80211_hwsim_ops
.sw_scan_complete
= NULL
;
2113 mac80211_hwsim_ops
.remain_on_channel
=
2115 mac80211_hwsim_ops
.cancel_remain_on_channel
=
2116 mac80211_hwsim_croc
;
2117 mac80211_hwsim_ops
.add_chanctx
=
2118 mac80211_hwsim_add_chanctx
;
2119 mac80211_hwsim_ops
.remove_chanctx
=
2120 mac80211_hwsim_remove_chanctx
;
2121 mac80211_hwsim_ops
.change_chanctx
=
2122 mac80211_hwsim_change_chanctx
;
2123 mac80211_hwsim_ops
.assign_vif_chanctx
=
2124 mac80211_hwsim_assign_vif_chanctx
;
2125 mac80211_hwsim_ops
.unassign_vif_chanctx
=
2126 mac80211_hwsim_unassign_vif_chanctx
;
2129 spin_lock_init(&hwsim_radio_lock
);
2130 INIT_LIST_HEAD(&hwsim_radios
);
2132 hwsim_class
= class_create(THIS_MODULE
, "mac80211_hwsim");
2133 if (IS_ERR(hwsim_class
))
2134 return PTR_ERR(hwsim_class
);
2136 memset(addr
, 0, ETH_ALEN
);
2139 for (i
= 0; i
< radios
; i
++) {
2140 printk(KERN_DEBUG
"mac80211_hwsim: Initializing radio %d\n",
2142 hw
= ieee80211_alloc_hw(sizeof(*data
), &mac80211_hwsim_ops
);
2144 printk(KERN_DEBUG
"mac80211_hwsim: ieee80211_alloc_hw "
2152 data
->dev
= device_create(hwsim_class
, NULL
, 0, hw
,
2154 if (IS_ERR(data
->dev
)) {
2156 "mac80211_hwsim: device_create "
2157 "failed (%ld)\n", PTR_ERR(data
->dev
));
2159 goto failed_drvdata
;
2161 data
->dev
->driver
= &mac80211_hwsim_driver
;
2162 skb_queue_head_init(&data
->pending
);
2164 SET_IEEE80211_DEV(hw
, data
->dev
);
2167 memcpy(data
->addresses
[0].addr
, addr
, ETH_ALEN
);
2168 memcpy(data
->addresses
[1].addr
, addr
, ETH_ALEN
);
2169 data
->addresses
[1].addr
[0] |= 0x40;
2170 hw
->wiphy
->n_addresses
= 2;
2171 hw
->wiphy
->addresses
= data
->addresses
;
2173 hw
->wiphy
->iface_combinations
= &hwsim_if_comb
;
2174 hw
->wiphy
->n_iface_combinations
= 1;
2177 hw
->wiphy
->max_scan_ssids
= 255;
2178 hw
->wiphy
->max_scan_ie_len
= IEEE80211_MAX_DATA_LEN
;
2179 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2182 INIT_DELAYED_WORK(&data
->roc_done
, hw_roc_done
);
2183 INIT_DELAYED_WORK(&data
->hw_scan
, hw_scan_work
);
2185 hw
->channel_change_time
= 1;
2187 hw
->offchannel_tx_hw_queue
= 4;
2188 hw
->wiphy
->interface_modes
=
2189 BIT(NL80211_IFTYPE_STATION
) |
2190 BIT(NL80211_IFTYPE_AP
) |
2191 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
2192 BIT(NL80211_IFTYPE_P2P_GO
) |
2193 BIT(NL80211_IFTYPE_ADHOC
) |
2194 BIT(NL80211_IFTYPE_MESH_POINT
) |
2195 BIT(NL80211_IFTYPE_P2P_DEVICE
);
2197 hw
->flags
= IEEE80211_HW_MFP_CAPABLE
|
2198 IEEE80211_HW_SIGNAL_DBM
|
2199 IEEE80211_HW_SUPPORTS_STATIC_SMPS
|
2200 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2201 IEEE80211_HW_AMPDU_AGGREGATION
|
2202 IEEE80211_HW_WANT_MONITOR_VIF
|
2203 IEEE80211_HW_QUEUE_CONTROL
;
2205 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
|
2206 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
;
2208 /* ask mac80211 to reserve space for magic */
2209 hw
->vif_data_size
= sizeof(struct hwsim_vif_priv
);
2210 hw
->sta_data_size
= sizeof(struct hwsim_sta_priv
);
2212 memcpy(data
->channels_2ghz
, hwsim_channels_2ghz
,
2213 sizeof(hwsim_channels_2ghz
));
2214 memcpy(data
->channels_5ghz
, hwsim_channels_5ghz
,
2215 sizeof(hwsim_channels_5ghz
));
2216 memcpy(data
->rates
, hwsim_rates
, sizeof(hwsim_rates
));
2218 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
2219 struct ieee80211_supported_band
*sband
= &data
->bands
[band
];
2221 case IEEE80211_BAND_2GHZ
:
2222 sband
->channels
= data
->channels_2ghz
;
2224 ARRAY_SIZE(hwsim_channels_2ghz
);
2225 sband
->bitrates
= data
->rates
;
2226 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
);
2228 case IEEE80211_BAND_5GHZ
:
2229 sband
->channels
= data
->channels_5ghz
;
2231 ARRAY_SIZE(hwsim_channels_5ghz
);
2232 sband
->bitrates
= data
->rates
+ 4;
2233 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
) - 4;
2239 sband
->ht_cap
.ht_supported
= true;
2240 sband
->ht_cap
.cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
2241 IEEE80211_HT_CAP_GRN_FLD
|
2242 IEEE80211_HT_CAP_SGI_40
|
2243 IEEE80211_HT_CAP_DSSSCCK40
;
2244 sband
->ht_cap
.ampdu_factor
= 0x3;
2245 sband
->ht_cap
.ampdu_density
= 0x6;
2246 memset(&sband
->ht_cap
.mcs
, 0,
2247 sizeof(sband
->ht_cap
.mcs
));
2248 sband
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
2249 sband
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
2250 sband
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
2252 hw
->wiphy
->bands
[band
] = sband
;
2257 sband
->vht_cap
.vht_supported
= true;
2258 sband
->vht_cap
.cap
=
2259 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454
|
2260 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ
|
2261 IEEE80211_VHT_CAP_RXLDPC
|
2262 IEEE80211_VHT_CAP_SHORT_GI_80
|
2263 IEEE80211_VHT_CAP_SHORT_GI_160
|
2264 IEEE80211_VHT_CAP_TXSTBC
|
2265 IEEE80211_VHT_CAP_RXSTBC_1
|
2266 IEEE80211_VHT_CAP_RXSTBC_2
|
2267 IEEE80211_VHT_CAP_RXSTBC_3
|
2268 IEEE80211_VHT_CAP_RXSTBC_4
|
2269 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK
;
2270 sband
->vht_cap
.vht_mcs
.rx_mcs_map
=
2271 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8
<< 0 |
2272 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 2 |
2273 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 4 |
2274 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 6 |
2275 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 8 |
2276 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 10 |
2277 IEEE80211_VHT_MCS_SUPPORT_0_9
<< 12 |
2278 IEEE80211_VHT_MCS_SUPPORT_0_8
<< 14);
2279 sband
->vht_cap
.vht_mcs
.tx_mcs_map
=
2280 sband
->vht_cap
.vht_mcs
.rx_mcs_map
;
2282 /* By default all radios are belonging to the first group */
2284 mutex_init(&data
->mutex
);
2286 /* Enable frame retransmissions for lossy channels */
2288 hw
->max_rate_tries
= 11;
2290 /* Work to be done prior to ieee80211_register_hw() */
2292 case HWSIM_REGTEST_DISABLED
:
2293 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
2294 case HWSIM_REGTEST_DRIVER_REG_ALL
:
2295 case HWSIM_REGTEST_DIFF_COUNTRY
:
2297 * Nothing to be done for driver regulatory domain
2298 * hints prior to ieee80211_register_hw()
2301 case HWSIM_REGTEST_WORLD_ROAM
:
2303 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2304 wiphy_apply_custom_regulatory(hw
->wiphy
,
2305 &hwsim_world_regdom_custom_01
);
2308 case HWSIM_REGTEST_CUSTOM_WORLD
:
2309 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2310 wiphy_apply_custom_regulatory(hw
->wiphy
,
2311 &hwsim_world_regdom_custom_01
);
2313 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
2315 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2316 wiphy_apply_custom_regulatory(hw
->wiphy
,
2317 &hwsim_world_regdom_custom_01
);
2318 } else if (i
== 1) {
2319 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2320 wiphy_apply_custom_regulatory(hw
->wiphy
,
2321 &hwsim_world_regdom_custom_02
);
2324 case HWSIM_REGTEST_STRICT_ALL
:
2325 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2327 case HWSIM_REGTEST_STRICT_FOLLOW
:
2328 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
2330 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2332 case HWSIM_REGTEST_ALL
:
2334 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2335 wiphy_apply_custom_regulatory(hw
->wiphy
,
2336 &hwsim_world_regdom_custom_01
);
2337 } else if (i
== 1) {
2338 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
2339 wiphy_apply_custom_regulatory(hw
->wiphy
,
2340 &hwsim_world_regdom_custom_02
);
2342 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
2348 /* give the regulatory workqueue a chance to run */
2350 schedule_timeout_interruptible(1);
2351 err
= ieee80211_register_hw(hw
);
2353 printk(KERN_DEBUG
"mac80211_hwsim: "
2354 "ieee80211_register_hw failed (%d)\n", err
);
2358 /* Work to be done after to ieee80211_register_hw() */
2360 case HWSIM_REGTEST_WORLD_ROAM
:
2361 case HWSIM_REGTEST_DISABLED
:
2363 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
2365 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2367 case HWSIM_REGTEST_DRIVER_REG_ALL
:
2368 case HWSIM_REGTEST_STRICT_ALL
:
2369 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2371 case HWSIM_REGTEST_DIFF_COUNTRY
:
2372 if (i
< ARRAY_SIZE(hwsim_alpha2s
))
2373 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[i
]);
2375 case HWSIM_REGTEST_CUSTOM_WORLD
:
2376 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
2378 * Nothing to be done for custom world regulatory
2379 * domains after to ieee80211_register_hw
2382 case HWSIM_REGTEST_STRICT_FOLLOW
:
2384 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2386 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
2388 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2390 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
2392 case HWSIM_REGTEST_ALL
:
2394 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
2396 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
2398 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[2]);
2404 wiphy_debug(hw
->wiphy
, "hwaddr %pm registered\n",
2405 hw
->wiphy
->perm_addr
);
2407 data
->debugfs
= debugfs_create_dir("hwsim",
2408 hw
->wiphy
->debugfsdir
);
2409 data
->debugfs_ps
= debugfs_create_file("ps", 0666,
2410 data
->debugfs
, data
,
2412 data
->debugfs_group
= debugfs_create_file("group", 0666,
2413 data
->debugfs
, data
,
2416 tasklet_hrtimer_init(&data
->beacon_timer
,
2417 mac80211_hwsim_beacon
,
2418 CLOCK_REALTIME
, HRTIMER_MODE_ABS
);
2420 list_add_tail(&data
->list
, &hwsim_radios
);
2423 hwsim_mon
= alloc_netdev(0, "hwsim%d", hwsim_mon_setup
);
2424 if (hwsim_mon
== NULL
)
2429 err
= dev_alloc_name(hwsim_mon
, hwsim_mon
->name
);
2434 err
= register_netdevice(hwsim_mon
);
2440 err
= hwsim_init_netlink();
2447 printk(KERN_DEBUG
"mac_80211_hwsim: failed initializing netlink\n");
2452 free_netdev(hwsim_mon
);
2453 mac80211_hwsim_free();
2457 device_unregister(data
->dev
);
2459 ieee80211_free_hw(hw
);
2461 mac80211_hwsim_free();
2464 module_init(init_mac80211_hwsim
);
2466 static void __exit
exit_mac80211_hwsim(void)
2468 printk(KERN_DEBUG
"mac80211_hwsim: unregister radios\n");
2470 hwsim_exit_netlink();
2472 mac80211_hwsim_free();
2473 unregister_netdev(hwsim_mon
);
2475 module_exit(exit_mac80211_hwsim
);