2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
12 * - IBSS mode simulation (Beacon transmission with competition for "air time")
13 * - RX filtering based on filter configuration (data->rx_filter)
16 #include <linux/list.h>
17 #include <linux/spinlock.h>
18 #include <net/mac80211.h>
19 #include <net/ieee80211_radiotap.h>
20 #include <linux/if_arp.h>
21 #include <linux/rtnetlink.h>
22 #include <linux/etherdevice.h>
23 #include <linux/debugfs.h>
25 MODULE_AUTHOR("Jouni Malinen");
26 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
27 MODULE_LICENSE("GPL");
29 static int radios
= 2;
30 module_param(radios
, int, 0444);
31 MODULE_PARM_DESC(radios
, "Number of simulated radios");
34 * enum hwsim_regtest - the type of regulatory tests we offer
36 * These are the different values you can use for the regtest
37 * module parameter. This is useful to help test world roaming
38 * and the driver regulatory_hint() call and combinations of these.
39 * If you want to do specific alpha2 regulatory domain tests simply
40 * use the userspace regulatory request as that will be respected as
41 * well without the need of this module parameter. This is designed
42 * only for testing the driver regulatory request, world roaming
43 * and all possible combinations.
45 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
46 * this is the default value.
47 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
48 * hint, only one driver regulatory hint will be sent as such the
49 * secondary radios are expected to follow.
50 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
51 * request with all radios reporting the same regulatory domain.
52 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
53 * different regulatory domains requests. Expected behaviour is for
54 * an intersection to occur but each device will still use their
55 * respective regulatory requested domains. Subsequent radios will
56 * use the resulting intersection.
57 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
58 * this by using a custom beacon-capable regulatory domain for the first
59 * radio. All other device world roam.
60 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
61 * domain requests. All radios will adhere to this custom world regulatory
63 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
64 * domain requests. The first radio will adhere to the first custom world
65 * regulatory domain, the second one to the second custom world regulatory
66 * domain. All other devices will world roam.
67 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
68 * settings, only the first radio will send a regulatory domain request
69 * and use strict settings. The rest of the radios are expected to follow.
70 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
71 * settings. All radios will adhere to this.
72 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
73 * domain settings, combined with secondary driver regulatory domain
74 * settings. The first radio will get a strict regulatory domain setting
75 * using the first driver regulatory request and the second radio will use
76 * non-strict settings using the second driver regulatory request. All
77 * other devices should follow the intersection created between the
79 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
80 * at least 6 radios for a complete test. We will test in this order:
81 * 1 - driver custom world regulatory domain
82 * 2 - second custom world regulatory domain
83 * 3 - first driver regulatory domain request
84 * 4 - second driver regulatory domain request
85 * 5 - strict regulatory domain settings using the third driver regulatory
87 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
88 * regulatory requests.
91 HWSIM_REGTEST_DISABLED
= 0,
92 HWSIM_REGTEST_DRIVER_REG_FOLLOW
= 1,
93 HWSIM_REGTEST_DRIVER_REG_ALL
= 2,
94 HWSIM_REGTEST_DIFF_COUNTRY
= 3,
95 HWSIM_REGTEST_WORLD_ROAM
= 4,
96 HWSIM_REGTEST_CUSTOM_WORLD
= 5,
97 HWSIM_REGTEST_CUSTOM_WORLD_2
= 6,
98 HWSIM_REGTEST_STRICT_FOLLOW
= 7,
99 HWSIM_REGTEST_STRICT_ALL
= 8,
100 HWSIM_REGTEST_STRICT_AND_DRIVER_REG
= 9,
101 HWSIM_REGTEST_ALL
= 10,
104 /* Set to one of the HWSIM_REGTEST_* values above */
105 static int regtest
= HWSIM_REGTEST_DISABLED
;
106 module_param(regtest
, int, 0444);
107 MODULE_PARM_DESC(regtest
, "The type of regulatory test we want to run");
109 static const char *hwsim_alpha2s
[] = {
118 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01
= {
122 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
123 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
124 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
125 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
129 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02
= {
133 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
134 REG_RULE(5725-10, 5850+10, 40, 0, 30,
135 NL80211_RRF_PASSIVE_SCAN
| NL80211_RRF_NO_IBSS
),
139 struct hwsim_vif_priv
{
146 #define HWSIM_VIF_MAGIC 0x69537748
148 static inline void hwsim_check_magic(struct ieee80211_vif
*vif
)
150 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
151 WARN_ON(vp
->magic
!= HWSIM_VIF_MAGIC
);
154 static inline void hwsim_set_magic(struct ieee80211_vif
*vif
)
156 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
157 vp
->magic
= HWSIM_VIF_MAGIC
;
160 static inline void hwsim_clear_magic(struct ieee80211_vif
*vif
)
162 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
166 struct hwsim_sta_priv
{
170 #define HWSIM_STA_MAGIC 0x6d537748
172 static inline void hwsim_check_sta_magic(struct ieee80211_sta
*sta
)
174 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
175 WARN_ON(sp
->magic
!= HWSIM_STA_MAGIC
);
178 static inline void hwsim_set_sta_magic(struct ieee80211_sta
*sta
)
180 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
181 sp
->magic
= HWSIM_STA_MAGIC
;
184 static inline void hwsim_clear_sta_magic(struct ieee80211_sta
*sta
)
186 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
190 static struct class *hwsim_class
;
192 static struct net_device
*hwsim_mon
; /* global monitor netdev */
194 #define CHAN2G(_freq) { \
195 .band = IEEE80211_BAND_2GHZ, \
196 .center_freq = (_freq), \
197 .hw_value = (_freq), \
201 #define CHAN5G(_freq) { \
202 .band = IEEE80211_BAND_5GHZ, \
203 .center_freq = (_freq), \
204 .hw_value = (_freq), \
208 static const struct ieee80211_channel hwsim_channels_2ghz
[] = {
209 CHAN2G(2412), /* Channel 1 */
210 CHAN2G(2417), /* Channel 2 */
211 CHAN2G(2422), /* Channel 3 */
212 CHAN2G(2427), /* Channel 4 */
213 CHAN2G(2432), /* Channel 5 */
214 CHAN2G(2437), /* Channel 6 */
215 CHAN2G(2442), /* Channel 7 */
216 CHAN2G(2447), /* Channel 8 */
217 CHAN2G(2452), /* Channel 9 */
218 CHAN2G(2457), /* Channel 10 */
219 CHAN2G(2462), /* Channel 11 */
220 CHAN2G(2467), /* Channel 12 */
221 CHAN2G(2472), /* Channel 13 */
222 CHAN2G(2484), /* Channel 14 */
225 static const struct ieee80211_channel hwsim_channels_5ghz
[] = {
226 CHAN5G(5180), /* Channel 36 */
227 CHAN5G(5200), /* Channel 40 */
228 CHAN5G(5220), /* Channel 44 */
229 CHAN5G(5240), /* Channel 48 */
231 CHAN5G(5260), /* Channel 52 */
232 CHAN5G(5280), /* Channel 56 */
233 CHAN5G(5300), /* Channel 60 */
234 CHAN5G(5320), /* Channel 64 */
236 CHAN5G(5500), /* Channel 100 */
237 CHAN5G(5520), /* Channel 104 */
238 CHAN5G(5540), /* Channel 108 */
239 CHAN5G(5560), /* Channel 112 */
240 CHAN5G(5580), /* Channel 116 */
241 CHAN5G(5600), /* Channel 120 */
242 CHAN5G(5620), /* Channel 124 */
243 CHAN5G(5640), /* Channel 128 */
244 CHAN5G(5660), /* Channel 132 */
245 CHAN5G(5680), /* Channel 136 */
246 CHAN5G(5700), /* Channel 140 */
248 CHAN5G(5745), /* Channel 149 */
249 CHAN5G(5765), /* Channel 153 */
250 CHAN5G(5785), /* Channel 157 */
251 CHAN5G(5805), /* Channel 161 */
252 CHAN5G(5825), /* Channel 165 */
255 static const struct ieee80211_rate hwsim_rates
[] = {
257 { .bitrate
= 20, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
258 { .bitrate
= 55, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
259 { .bitrate
= 110, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
270 static spinlock_t hwsim_radio_lock
;
271 static struct list_head hwsim_radios
;
273 struct mac80211_hwsim_data
{
274 struct list_head list
;
275 struct ieee80211_hw
*hw
;
277 struct ieee80211_supported_band bands
[2];
278 struct ieee80211_channel channels_2ghz
[ARRAY_SIZE(hwsim_channels_2ghz
)];
279 struct ieee80211_channel channels_5ghz
[ARRAY_SIZE(hwsim_channels_5ghz
)];
280 struct ieee80211_rate rates
[ARRAY_SIZE(hwsim_rates
)];
282 struct ieee80211_channel
*channel
;
284 unsigned long beacon_int
; /* in jiffies unit */
285 unsigned int rx_filter
;
287 struct timer_list beacon_timer
;
289 PS_DISABLED
, PS_ENABLED
, PS_AUTO_POLL
, PS_MANUAL_POLL
291 bool ps_poll_pending
;
292 struct dentry
*debugfs
;
293 struct dentry
*debugfs_ps
;
297 struct hwsim_radiotap_hdr
{
298 struct ieee80211_radiotap_header hdr
;
303 } __attribute__ ((packed
));
306 static int hwsim_mon_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
308 /* TODO: allow packet injection */
314 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw
*hw
,
315 struct sk_buff
*tx_skb
)
317 struct mac80211_hwsim_data
*data
= hw
->priv
;
319 struct hwsim_radiotap_hdr
*hdr
;
321 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(tx_skb
);
322 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
324 if (!netif_running(hwsim_mon
))
327 skb
= skb_copy_expand(tx_skb
, sizeof(*hdr
), 0, GFP_ATOMIC
);
331 hdr
= (struct hwsim_radiotap_hdr
*) skb_push(skb
, sizeof(*hdr
));
332 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
334 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
335 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
336 (1 << IEEE80211_RADIOTAP_RATE
) |
337 (1 << IEEE80211_RADIOTAP_CHANNEL
));
339 hdr
->rt_rate
= txrate
->bitrate
/ 5;
340 hdr
->rt_channel
= cpu_to_le16(data
->channel
->center_freq
);
341 flags
= IEEE80211_CHAN_2GHZ
;
342 if (txrate
->flags
& IEEE80211_RATE_ERP_G
)
343 flags
|= IEEE80211_CHAN_OFDM
;
345 flags
|= IEEE80211_CHAN_CCK
;
346 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
348 skb
->dev
= hwsim_mon
;
349 skb_set_mac_header(skb
, 0);
350 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
351 skb
->pkt_type
= PACKET_OTHERHOST
;
352 skb
->protocol
= htons(ETH_P_802_2
);
353 memset(skb
->cb
, 0, sizeof(skb
->cb
));
358 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data
*data
,
367 /* TODO: accept (some) Beacons by default and other frames only
368 * if pending PS-Poll has been sent */
371 /* Allow unicast frames to own address if there is a pending
373 if (data
->ps_poll_pending
&&
374 memcmp(data
->hw
->wiphy
->perm_addr
, skb
->data
+ 4,
376 data
->ps_poll_pending
= false;
386 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw
*hw
,
389 struct mac80211_hwsim_data
*data
= hw
->priv
, *data2
;
391 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
392 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
393 struct ieee80211_rx_status rx_status
;
395 memset(&rx_status
, 0, sizeof(rx_status
));
396 /* TODO: set mactime */
397 rx_status
.freq
= data
->channel
->center_freq
;
398 rx_status
.band
= data
->channel
->band
;
399 rx_status
.rate_idx
= info
->control
.rates
[0].idx
;
400 /* TODO: simulate signal strength (and optional packet drop) */
402 if (data
->ps
!= PS_DISABLED
)
403 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
405 /* Copy skb to all enabled radios that are on the current frequency */
406 spin_lock(&hwsim_radio_lock
);
407 list_for_each_entry(data2
, &hwsim_radios
, list
) {
408 struct sk_buff
*nskb
;
413 if (!data2
->started
|| !data2
->radio_enabled
||
414 !hwsim_ps_rx_ok(data2
, skb
) ||
415 data
->channel
->center_freq
!= data2
->channel
->center_freq
)
418 nskb
= skb_copy(skb
, GFP_ATOMIC
);
422 if (memcmp(hdr
->addr1
, data2
->hw
->wiphy
->perm_addr
,
425 ieee80211_rx_irqsafe(data2
->hw
, nskb
, &rx_status
);
427 spin_unlock(&hwsim_radio_lock
);
433 static int mac80211_hwsim_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
435 struct mac80211_hwsim_data
*data
= hw
->priv
;
437 struct ieee80211_tx_info
*txi
;
439 mac80211_hwsim_monitor_rx(hw
, skb
);
442 /* Should not happen; just a sanity check for addr1 use */
447 if (!data
->radio_enabled
) {
448 printk(KERN_DEBUG
"%s: dropped TX frame since radio "
449 "disabled\n", wiphy_name(hw
->wiphy
));
454 ack
= mac80211_hwsim_tx_frame(hw
, skb
);
456 txi
= IEEE80211_SKB_CB(skb
);
458 if (txi
->control
.vif
)
459 hwsim_check_magic(txi
->control
.vif
);
460 if (txi
->control
.sta
)
461 hwsim_check_sta_magic(txi
->control
.sta
);
463 ieee80211_tx_info_clear_status(txi
);
464 if (!(txi
->flags
& IEEE80211_TX_CTL_NO_ACK
) && ack
)
465 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
466 ieee80211_tx_status_irqsafe(hw
, skb
);
471 static int mac80211_hwsim_start(struct ieee80211_hw
*hw
)
473 struct mac80211_hwsim_data
*data
= hw
->priv
;
474 printk(KERN_DEBUG
"%s:%s\n", wiphy_name(hw
->wiphy
), __func__
);
480 static void mac80211_hwsim_stop(struct ieee80211_hw
*hw
)
482 struct mac80211_hwsim_data
*data
= hw
->priv
;
484 del_timer(&data
->beacon_timer
);
485 printk(KERN_DEBUG
"%s:%s\n", wiphy_name(hw
->wiphy
), __func__
);
489 static int mac80211_hwsim_add_interface(struct ieee80211_hw
*hw
,
490 struct ieee80211_if_init_conf
*conf
)
492 printk(KERN_DEBUG
"%s:%s (type=%d mac_addr=%pM)\n",
493 wiphy_name(hw
->wiphy
), __func__
, conf
->type
,
495 hwsim_set_magic(conf
->vif
);
500 static void mac80211_hwsim_remove_interface(
501 struct ieee80211_hw
*hw
, struct ieee80211_if_init_conf
*conf
)
503 printk(KERN_DEBUG
"%s:%s (type=%d mac_addr=%pM)\n",
504 wiphy_name(hw
->wiphy
), __func__
, conf
->type
,
506 hwsim_check_magic(conf
->vif
);
507 hwsim_clear_magic(conf
->vif
);
511 static void mac80211_hwsim_beacon_tx(void *arg
, u8
*mac
,
512 struct ieee80211_vif
*vif
)
514 struct ieee80211_hw
*hw
= arg
;
516 struct ieee80211_tx_info
*info
;
518 hwsim_check_magic(vif
);
520 if (vif
->type
!= NL80211_IFTYPE_AP
&&
521 vif
->type
!= NL80211_IFTYPE_MESH_POINT
)
524 skb
= ieee80211_beacon_get(hw
, vif
);
527 info
= IEEE80211_SKB_CB(skb
);
529 mac80211_hwsim_monitor_rx(hw
, skb
);
530 mac80211_hwsim_tx_frame(hw
, skb
);
535 static void mac80211_hwsim_beacon(unsigned long arg
)
537 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*) arg
;
538 struct mac80211_hwsim_data
*data
= hw
->priv
;
540 if (!data
->started
|| !data
->radio_enabled
)
543 ieee80211_iterate_active_interfaces_atomic(
544 hw
, mac80211_hwsim_beacon_tx
, hw
);
546 data
->beacon_timer
.expires
= jiffies
+ data
->beacon_int
;
547 add_timer(&data
->beacon_timer
);
551 static int mac80211_hwsim_config(struct ieee80211_hw
*hw
, u32 changed
)
553 struct mac80211_hwsim_data
*data
= hw
->priv
;
554 struct ieee80211_conf
*conf
= &hw
->conf
;
556 printk(KERN_DEBUG
"%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n",
557 wiphy_name(hw
->wiphy
), __func__
,
558 conf
->channel
->center_freq
, conf
->radio_enabled
,
561 data
->channel
= conf
->channel
;
562 data
->radio_enabled
= conf
->radio_enabled
;
563 data
->beacon_int
= 1024 * conf
->beacon_int
/ 1000 * HZ
/ 1000;
564 if (data
->beacon_int
< 1)
565 data
->beacon_int
= 1;
567 if (!data
->started
|| !data
->radio_enabled
)
568 del_timer(&data
->beacon_timer
);
570 mod_timer(&data
->beacon_timer
, jiffies
+ data
->beacon_int
);
576 static void mac80211_hwsim_configure_filter(struct ieee80211_hw
*hw
,
577 unsigned int changed_flags
,
578 unsigned int *total_flags
,
580 struct dev_addr_list
*mc_list
)
582 struct mac80211_hwsim_data
*data
= hw
->priv
;
584 printk(KERN_DEBUG
"%s:%s\n", wiphy_name(hw
->wiphy
), __func__
);
587 if (*total_flags
& FIF_PROMISC_IN_BSS
)
588 data
->rx_filter
|= FIF_PROMISC_IN_BSS
;
589 if (*total_flags
& FIF_ALLMULTI
)
590 data
->rx_filter
|= FIF_ALLMULTI
;
592 *total_flags
= data
->rx_filter
;
595 static int mac80211_hwsim_config_interface(struct ieee80211_hw
*hw
,
596 struct ieee80211_vif
*vif
,
597 struct ieee80211_if_conf
*conf
)
599 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
601 hwsim_check_magic(vif
);
602 if (conf
->changed
& IEEE80211_IFCC_BSSID
) {
603 DECLARE_MAC_BUF(mac
);
604 printk(KERN_DEBUG
"%s:%s: BSSID changed: %pM\n",
605 wiphy_name(hw
->wiphy
), __func__
,
607 memcpy(vp
->bssid
, conf
->bssid
, ETH_ALEN
);
612 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw
*hw
,
613 struct ieee80211_vif
*vif
,
614 struct ieee80211_bss_conf
*info
,
617 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
619 hwsim_check_magic(vif
);
621 printk(KERN_DEBUG
"%s:%s(changed=0x%x)\n",
622 wiphy_name(hw
->wiphy
), __func__
, changed
);
624 if (changed
& BSS_CHANGED_ASSOC
) {
625 printk(KERN_DEBUG
" %s: ASSOC: assoc=%d aid=%d\n",
626 wiphy_name(hw
->wiphy
), info
->assoc
, info
->aid
);
627 vp
->assoc
= info
->assoc
;
631 if (changed
& BSS_CHANGED_ERP_CTS_PROT
) {
632 printk(KERN_DEBUG
" %s: ERP_CTS_PROT: %d\n",
633 wiphy_name(hw
->wiphy
), info
->use_cts_prot
);
636 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
637 printk(KERN_DEBUG
" %s: ERP_PREAMBLE: %d\n",
638 wiphy_name(hw
->wiphy
), info
->use_short_preamble
);
641 if (changed
& BSS_CHANGED_ERP_SLOT
) {
642 printk(KERN_DEBUG
" %s: ERP_SLOT: %d\n",
643 wiphy_name(hw
->wiphy
), info
->use_short_slot
);
646 if (changed
& BSS_CHANGED_HT
) {
647 printk(KERN_DEBUG
" %s: HT: op_mode=0x%x\n",
648 wiphy_name(hw
->wiphy
),
649 info
->ht
.operation_mode
);
652 if (changed
& BSS_CHANGED_BASIC_RATES
) {
653 printk(KERN_DEBUG
" %s: BASIC_RATES: 0x%llx\n",
654 wiphy_name(hw
->wiphy
),
655 (unsigned long long) info
->basic_rates
);
659 static void mac80211_hwsim_sta_notify(struct ieee80211_hw
*hw
,
660 struct ieee80211_vif
*vif
,
661 enum sta_notify_cmd cmd
,
662 struct ieee80211_sta
*sta
)
664 hwsim_check_magic(vif
);
667 hwsim_set_sta_magic(sta
);
669 case STA_NOTIFY_REMOVE
:
670 hwsim_clear_sta_magic(sta
);
672 case STA_NOTIFY_SLEEP
:
673 case STA_NOTIFY_AWAKE
:
674 /* TODO: make good use of these flags */
679 static int mac80211_hwsim_set_tim(struct ieee80211_hw
*hw
,
680 struct ieee80211_sta
*sta
,
683 hwsim_check_sta_magic(sta
);
687 static int mac80211_hwsim_conf_tx(
688 struct ieee80211_hw
*hw
, u16 queue
,
689 const struct ieee80211_tx_queue_params
*params
)
691 printk(KERN_DEBUG
"%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
693 wiphy_name(hw
->wiphy
), __func__
, queue
,
694 params
->txop
, params
->cw_min
, params
->cw_max
, params
->aifs
);
698 static const struct ieee80211_ops mac80211_hwsim_ops
=
700 .tx
= mac80211_hwsim_tx
,
701 .start
= mac80211_hwsim_start
,
702 .stop
= mac80211_hwsim_stop
,
703 .add_interface
= mac80211_hwsim_add_interface
,
704 .remove_interface
= mac80211_hwsim_remove_interface
,
705 .config
= mac80211_hwsim_config
,
706 .configure_filter
= mac80211_hwsim_configure_filter
,
707 .config_interface
= mac80211_hwsim_config_interface
,
708 .bss_info_changed
= mac80211_hwsim_bss_info_changed
,
709 .sta_notify
= mac80211_hwsim_sta_notify
,
710 .set_tim
= mac80211_hwsim_set_tim
,
711 .conf_tx
= mac80211_hwsim_conf_tx
,
715 static void mac80211_hwsim_free(void)
717 struct list_head tmplist
, *i
, *tmp
;
718 struct mac80211_hwsim_data
*data
;
720 INIT_LIST_HEAD(&tmplist
);
722 spin_lock_bh(&hwsim_radio_lock
);
723 list_for_each_safe(i
, tmp
, &hwsim_radios
)
724 list_move(i
, &tmplist
);
725 spin_unlock_bh(&hwsim_radio_lock
);
727 list_for_each_entry(data
, &tmplist
, list
) {
728 debugfs_remove(data
->debugfs_ps
);
729 debugfs_remove(data
->debugfs
);
730 ieee80211_unregister_hw(data
->hw
);
731 device_unregister(data
->dev
);
732 ieee80211_free_hw(data
->hw
);
734 class_destroy(hwsim_class
);
738 static struct device_driver mac80211_hwsim_driver
= {
739 .name
= "mac80211_hwsim"
742 static const struct net_device_ops hwsim_netdev_ops
= {
743 .ndo_start_xmit
= hwsim_mon_xmit
,
744 .ndo_change_mtu
= eth_change_mtu
,
745 .ndo_set_mac_address
= eth_mac_addr
,
746 .ndo_validate_addr
= eth_validate_addr
,
749 static void hwsim_mon_setup(struct net_device
*dev
)
751 dev
->netdev_ops
= &hwsim_netdev_ops
;
752 dev
->destructor
= free_netdev
;
754 dev
->tx_queue_len
= 0;
755 dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
756 memset(dev
->dev_addr
, 0, ETH_ALEN
);
757 dev
->dev_addr
[0] = 0x12;
761 static void hwsim_send_ps_poll(void *dat
, u8
*mac
, struct ieee80211_vif
*vif
)
763 struct mac80211_hwsim_data
*data
= dat
;
764 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
765 DECLARE_MAC_BUF(buf
);
767 struct ieee80211_pspoll
*pspoll
;
772 printk(KERN_DEBUG
"%s:%s: send PS-Poll to %pM for aid %d\n",
773 wiphy_name(data
->hw
->wiphy
), __func__
, vp
->bssid
, vp
->aid
);
775 skb
= dev_alloc_skb(sizeof(*pspoll
));
778 pspoll
= (void *) skb_put(skb
, sizeof(*pspoll
));
779 pspoll
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
780 IEEE80211_STYPE_PSPOLL
|
782 pspoll
->aid
= cpu_to_le16(0xc000 | vp
->aid
);
783 memcpy(pspoll
->bssid
, vp
->bssid
, ETH_ALEN
);
784 memcpy(pspoll
->ta
, mac
, ETH_ALEN
);
785 if (data
->radio_enabled
&&
786 !mac80211_hwsim_tx_frame(data
->hw
, skb
))
787 printk(KERN_DEBUG
"%s: PS-Poll frame not ack'ed\n", __func__
);
792 static void hwsim_send_nullfunc(struct mac80211_hwsim_data
*data
, u8
*mac
,
793 struct ieee80211_vif
*vif
, int ps
)
795 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
796 DECLARE_MAC_BUF(buf
);
798 struct ieee80211_hdr
*hdr
;
803 printk(KERN_DEBUG
"%s:%s: send data::nullfunc to %pM ps=%d\n",
804 wiphy_name(data
->hw
->wiphy
), __func__
, vp
->bssid
, ps
);
806 skb
= dev_alloc_skb(sizeof(*hdr
));
809 hdr
= (void *) skb_put(skb
, sizeof(*hdr
) - ETH_ALEN
);
810 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
811 IEEE80211_STYPE_NULLFUNC
|
812 (ps
? IEEE80211_FCTL_PM
: 0));
813 hdr
->duration_id
= cpu_to_le16(0);
814 memcpy(hdr
->addr1
, vp
->bssid
, ETH_ALEN
);
815 memcpy(hdr
->addr2
, mac
, ETH_ALEN
);
816 memcpy(hdr
->addr3
, vp
->bssid
, ETH_ALEN
);
817 if (data
->radio_enabled
&&
818 !mac80211_hwsim_tx_frame(data
->hw
, skb
))
819 printk(KERN_DEBUG
"%s: nullfunc frame not ack'ed\n", __func__
);
824 static void hwsim_send_nullfunc_ps(void *dat
, u8
*mac
,
825 struct ieee80211_vif
*vif
)
827 struct mac80211_hwsim_data
*data
= dat
;
828 hwsim_send_nullfunc(data
, mac
, vif
, 1);
832 static void hwsim_send_nullfunc_no_ps(void *dat
, u8
*mac
,
833 struct ieee80211_vif
*vif
)
835 struct mac80211_hwsim_data
*data
= dat
;
836 hwsim_send_nullfunc(data
, mac
, vif
, 0);
840 static int hwsim_fops_ps_read(void *dat
, u64
*val
)
842 struct mac80211_hwsim_data
*data
= dat
;
847 static int hwsim_fops_ps_write(void *dat
, u64 val
)
849 struct mac80211_hwsim_data
*data
= dat
;
852 if (val
!= PS_DISABLED
&& val
!= PS_ENABLED
&& val
!= PS_AUTO_POLL
&&
853 val
!= PS_MANUAL_POLL
)
859 if (val
== PS_MANUAL_POLL
) {
860 ieee80211_iterate_active_interfaces(data
->hw
,
861 hwsim_send_ps_poll
, data
);
862 data
->ps_poll_pending
= true;
863 } else if (old_ps
== PS_DISABLED
&& val
!= PS_DISABLED
) {
864 ieee80211_iterate_active_interfaces(data
->hw
,
865 hwsim_send_nullfunc_ps
,
867 } else if (old_ps
!= PS_DISABLED
&& val
== PS_DISABLED
) {
868 ieee80211_iterate_active_interfaces(data
->hw
,
869 hwsim_send_nullfunc_no_ps
,
876 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps
, hwsim_fops_ps_read
, hwsim_fops_ps_write
,
880 static int __init
init_mac80211_hwsim(void)
884 struct mac80211_hwsim_data
*data
;
885 struct ieee80211_hw
*hw
;
886 enum ieee80211_band band
;
888 if (radios
< 1 || radios
> 100)
891 spin_lock_init(&hwsim_radio_lock
);
892 INIT_LIST_HEAD(&hwsim_radios
);
894 hwsim_class
= class_create(THIS_MODULE
, "mac80211_hwsim");
895 if (IS_ERR(hwsim_class
))
896 return PTR_ERR(hwsim_class
);
898 memset(addr
, 0, ETH_ALEN
);
901 for (i
= 0; i
< radios
; i
++) {
902 printk(KERN_DEBUG
"mac80211_hwsim: Initializing radio %d\n",
904 hw
= ieee80211_alloc_hw(sizeof(*data
), &mac80211_hwsim_ops
);
906 printk(KERN_DEBUG
"mac80211_hwsim: ieee80211_alloc_hw "
914 data
->dev
= device_create(hwsim_class
, NULL
, 0, hw
,
916 if (IS_ERR(data
->dev
)) {
918 "mac80211_hwsim: device_create "
919 "failed (%ld)\n", PTR_ERR(data
->dev
));
923 data
->dev
->driver
= &mac80211_hwsim_driver
;
925 SET_IEEE80211_DEV(hw
, data
->dev
);
928 SET_IEEE80211_PERM_ADDR(hw
, addr
);
930 hw
->channel_change_time
= 1;
932 hw
->wiphy
->interface_modes
=
933 BIT(NL80211_IFTYPE_STATION
) |
934 BIT(NL80211_IFTYPE_AP
) |
935 BIT(NL80211_IFTYPE_MESH_POINT
);
937 hw
->flags
= IEEE80211_HW_MFP_CAPABLE
;
939 /* ask mac80211 to reserve space for magic */
940 hw
->vif_data_size
= sizeof(struct hwsim_vif_priv
);
941 hw
->sta_data_size
= sizeof(struct hwsim_sta_priv
);
943 memcpy(data
->channels_2ghz
, hwsim_channels_2ghz
,
944 sizeof(hwsim_channels_2ghz
));
945 memcpy(data
->channels_5ghz
, hwsim_channels_5ghz
,
946 sizeof(hwsim_channels_5ghz
));
947 memcpy(data
->rates
, hwsim_rates
, sizeof(hwsim_rates
));
949 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
950 struct ieee80211_supported_band
*sband
= &data
->bands
[band
];
952 case IEEE80211_BAND_2GHZ
:
953 sband
->channels
= data
->channels_2ghz
;
955 ARRAY_SIZE(hwsim_channels_2ghz
);
957 case IEEE80211_BAND_5GHZ
:
958 sband
->channels
= data
->channels_5ghz
;
960 ARRAY_SIZE(hwsim_channels_5ghz
);
966 sband
->bitrates
= data
->rates
;
967 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
);
969 sband
->ht_cap
.ht_supported
= true;
970 sband
->ht_cap
.cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
971 IEEE80211_HT_CAP_GRN_FLD
|
972 IEEE80211_HT_CAP_SGI_40
|
973 IEEE80211_HT_CAP_DSSSCCK40
;
974 sband
->ht_cap
.ampdu_factor
= 0x3;
975 sband
->ht_cap
.ampdu_density
= 0x6;
976 memset(&sband
->ht_cap
.mcs
, 0,
977 sizeof(sband
->ht_cap
.mcs
));
978 sband
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
979 sband
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
980 sband
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
982 hw
->wiphy
->bands
[band
] = sband
;
985 /* Work to be done prior to ieee80211_register_hw() */
987 case HWSIM_REGTEST_DISABLED
:
988 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
989 case HWSIM_REGTEST_DRIVER_REG_ALL
:
990 case HWSIM_REGTEST_DIFF_COUNTRY
:
992 * Nothing to be done for driver regulatory domain
993 * hints prior to ieee80211_register_hw()
996 case HWSIM_REGTEST_WORLD_ROAM
:
998 hw
->wiphy
->custom_regulatory
= true;
999 wiphy_apply_custom_regulatory(hw
->wiphy
,
1000 &hwsim_world_regdom_custom_01
);
1003 case HWSIM_REGTEST_CUSTOM_WORLD
:
1004 hw
->wiphy
->custom_regulatory
= true;
1005 wiphy_apply_custom_regulatory(hw
->wiphy
,
1006 &hwsim_world_regdom_custom_01
);
1008 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
1010 hw
->wiphy
->custom_regulatory
= true;
1011 wiphy_apply_custom_regulatory(hw
->wiphy
,
1012 &hwsim_world_regdom_custom_01
);
1013 } else if (i
== 1) {
1014 hw
->wiphy
->custom_regulatory
= true;
1015 wiphy_apply_custom_regulatory(hw
->wiphy
,
1016 &hwsim_world_regdom_custom_02
);
1019 case HWSIM_REGTEST_STRICT_ALL
:
1020 hw
->wiphy
->strict_regulatory
= true;
1022 case HWSIM_REGTEST_STRICT_FOLLOW
:
1023 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
1025 hw
->wiphy
->strict_regulatory
= true;
1027 case HWSIM_REGTEST_ALL
:
1029 hw
->wiphy
->custom_regulatory
= true;
1030 wiphy_apply_custom_regulatory(hw
->wiphy
,
1031 &hwsim_world_regdom_custom_01
);
1032 } else if (i
== 1) {
1033 hw
->wiphy
->custom_regulatory
= true;
1034 wiphy_apply_custom_regulatory(hw
->wiphy
,
1035 &hwsim_world_regdom_custom_02
);
1037 hw
->wiphy
->strict_regulatory
= true;
1043 /* give the regulatory workqueue a chance to run */
1045 schedule_timeout_interruptible(1);
1046 err
= ieee80211_register_hw(hw
);
1048 printk(KERN_DEBUG
"mac80211_hwsim: "
1049 "ieee80211_register_hw failed (%d)\n", err
);
1053 /* Work to be done after to ieee80211_register_hw() */
1055 case HWSIM_REGTEST_WORLD_ROAM
:
1056 case HWSIM_REGTEST_DISABLED
:
1058 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
1060 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1062 case HWSIM_REGTEST_DRIVER_REG_ALL
:
1063 case HWSIM_REGTEST_STRICT_ALL
:
1064 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1066 case HWSIM_REGTEST_DIFF_COUNTRY
:
1067 if (i
< ARRAY_SIZE(hwsim_alpha2s
))
1068 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[i
]);
1070 case HWSIM_REGTEST_CUSTOM_WORLD
:
1071 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
1073 * Nothing to be done for custom world regulatory
1074 * domains after to ieee80211_register_hw
1077 case HWSIM_REGTEST_STRICT_FOLLOW
:
1079 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1081 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
1083 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1085 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
1087 case HWSIM_REGTEST_ALL
:
1089 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1091 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
1093 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[2]);
1099 printk(KERN_DEBUG
"%s: hwaddr %pM registered\n",
1100 wiphy_name(hw
->wiphy
),
1101 hw
->wiphy
->perm_addr
);
1103 data
->debugfs
= debugfs_create_dir("hwsim",
1104 hw
->wiphy
->debugfsdir
);
1105 data
->debugfs_ps
= debugfs_create_file("ps", 0666,
1106 data
->debugfs
, data
,
1109 setup_timer(&data
->beacon_timer
, mac80211_hwsim_beacon
,
1110 (unsigned long) hw
);
1112 list_add_tail(&data
->list
, &hwsim_radios
);
1115 hwsim_mon
= alloc_netdev(0, "hwsim%d", hwsim_mon_setup
);
1116 if (hwsim_mon
== NULL
)
1121 err
= dev_alloc_name(hwsim_mon
, hwsim_mon
->name
);
1126 err
= register_netdevice(hwsim_mon
);
1136 free_netdev(hwsim_mon
);
1137 mac80211_hwsim_free();
1141 device_unregister(data
->dev
);
1143 ieee80211_free_hw(hw
);
1145 mac80211_hwsim_free();
1150 static void __exit
exit_mac80211_hwsim(void)
1152 printk(KERN_DEBUG
"mac80211_hwsim: unregister radios\n");
1154 unregister_netdev(hwsim_mon
);
1155 mac80211_hwsim_free();
1159 module_init(init_mac80211_hwsim
);
1160 module_exit(exit_mac80211_hwsim
);