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 <net/genetlink.h>
30 #include "mac80211_hwsim.h"
32 #define WARN_QUEUE 100
35 MODULE_AUTHOR("Jouni Malinen");
36 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
37 MODULE_LICENSE("GPL");
40 static int radios
= 2;
41 module_param(radios
, int, 0444);
42 MODULE_PARM_DESC(radios
, "Number of simulated radios");
44 static bool fake_hw_scan
;
45 module_param(fake_hw_scan
, bool, 0444);
46 MODULE_PARM_DESC(fake_hw_scan
, "Install fake (no-op) hw-scan handler");
49 * enum hwsim_regtest - the type of regulatory tests we offer
51 * These are the different values you can use for the regtest
52 * module parameter. This is useful to help test world roaming
53 * and the driver regulatory_hint() call and combinations of these.
54 * If you want to do specific alpha2 regulatory domain tests simply
55 * use the userspace regulatory request as that will be respected as
56 * well without the need of this module parameter. This is designed
57 * only for testing the driver regulatory request, world roaming
58 * and all possible combinations.
60 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
61 * this is the default value.
62 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
63 * hint, only one driver regulatory hint will be sent as such the
64 * secondary radios are expected to follow.
65 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
66 * request with all radios reporting the same regulatory domain.
67 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
68 * different regulatory domains requests. Expected behaviour is for
69 * an intersection to occur but each device will still use their
70 * respective regulatory requested domains. Subsequent radios will
71 * use the resulting intersection.
72 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
73 * this by using a custom beacon-capable regulatory domain for the first
74 * radio. All other device world roam.
75 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
76 * domain requests. All radios will adhere to this custom world regulatory
78 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
79 * domain requests. The first radio will adhere to the first custom world
80 * regulatory domain, the second one to the second custom world regulatory
81 * domain. All other devices will world roam.
82 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
83 * settings, only the first radio will send a regulatory domain request
84 * and use strict settings. The rest of the radios are expected to follow.
85 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
86 * settings. All radios will adhere to this.
87 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
88 * domain settings, combined with secondary driver regulatory domain
89 * settings. The first radio will get a strict regulatory domain setting
90 * using the first driver regulatory request and the second radio will use
91 * non-strict settings using the second driver regulatory request. All
92 * other devices should follow the intersection created between the
94 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
95 * at least 6 radios for a complete test. We will test in this order:
96 * 1 - driver custom world regulatory domain
97 * 2 - second custom world regulatory domain
98 * 3 - first driver regulatory domain request
99 * 4 - second driver regulatory domain request
100 * 5 - strict regulatory domain settings using the third driver regulatory
102 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
103 * regulatory requests.
106 HWSIM_REGTEST_DISABLED
= 0,
107 HWSIM_REGTEST_DRIVER_REG_FOLLOW
= 1,
108 HWSIM_REGTEST_DRIVER_REG_ALL
= 2,
109 HWSIM_REGTEST_DIFF_COUNTRY
= 3,
110 HWSIM_REGTEST_WORLD_ROAM
= 4,
111 HWSIM_REGTEST_CUSTOM_WORLD
= 5,
112 HWSIM_REGTEST_CUSTOM_WORLD_2
= 6,
113 HWSIM_REGTEST_STRICT_FOLLOW
= 7,
114 HWSIM_REGTEST_STRICT_ALL
= 8,
115 HWSIM_REGTEST_STRICT_AND_DRIVER_REG
= 9,
116 HWSIM_REGTEST_ALL
= 10,
119 /* Set to one of the HWSIM_REGTEST_* values above */
120 static int regtest
= HWSIM_REGTEST_DISABLED
;
121 module_param(regtest
, int, 0444);
122 MODULE_PARM_DESC(regtest
, "The type of regulatory test we want to run");
124 static const char *hwsim_alpha2s
[] = {
133 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01
= {
137 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
138 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
139 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
140 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
144 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02
= {
148 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
149 REG_RULE(5725-10, 5850+10, 40, 0, 30,
150 NL80211_RRF_PASSIVE_SCAN
| NL80211_RRF_NO_IBSS
),
154 struct hwsim_vif_priv
{
161 #define HWSIM_VIF_MAGIC 0x69537748
163 static inline void hwsim_check_magic(struct ieee80211_vif
*vif
)
165 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
166 WARN_ON(vp
->magic
!= HWSIM_VIF_MAGIC
);
169 static inline void hwsim_set_magic(struct ieee80211_vif
*vif
)
171 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
172 vp
->magic
= HWSIM_VIF_MAGIC
;
175 static inline void hwsim_clear_magic(struct ieee80211_vif
*vif
)
177 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
181 struct hwsim_sta_priv
{
185 #define HWSIM_STA_MAGIC 0x6d537748
187 static inline void hwsim_check_sta_magic(struct ieee80211_sta
*sta
)
189 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
190 WARN_ON(sp
->magic
!= HWSIM_STA_MAGIC
);
193 static inline void hwsim_set_sta_magic(struct ieee80211_sta
*sta
)
195 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
196 sp
->magic
= HWSIM_STA_MAGIC
;
199 static inline void hwsim_clear_sta_magic(struct ieee80211_sta
*sta
)
201 struct hwsim_sta_priv
*sp
= (void *)sta
->drv_priv
;
205 static struct class *hwsim_class
;
207 static struct net_device
*hwsim_mon
; /* global monitor netdev */
209 #define CHAN2G(_freq) { \
210 .band = IEEE80211_BAND_2GHZ, \
211 .center_freq = (_freq), \
212 .hw_value = (_freq), \
216 #define CHAN5G(_freq) { \
217 .band = IEEE80211_BAND_5GHZ, \
218 .center_freq = (_freq), \
219 .hw_value = (_freq), \
223 static const struct ieee80211_channel hwsim_channels_2ghz
[] = {
224 CHAN2G(2412), /* Channel 1 */
225 CHAN2G(2417), /* Channel 2 */
226 CHAN2G(2422), /* Channel 3 */
227 CHAN2G(2427), /* Channel 4 */
228 CHAN2G(2432), /* Channel 5 */
229 CHAN2G(2437), /* Channel 6 */
230 CHAN2G(2442), /* Channel 7 */
231 CHAN2G(2447), /* Channel 8 */
232 CHAN2G(2452), /* Channel 9 */
233 CHAN2G(2457), /* Channel 10 */
234 CHAN2G(2462), /* Channel 11 */
235 CHAN2G(2467), /* Channel 12 */
236 CHAN2G(2472), /* Channel 13 */
237 CHAN2G(2484), /* Channel 14 */
240 static const struct ieee80211_channel hwsim_channels_5ghz
[] = {
241 CHAN5G(5180), /* Channel 36 */
242 CHAN5G(5200), /* Channel 40 */
243 CHAN5G(5220), /* Channel 44 */
244 CHAN5G(5240), /* Channel 48 */
246 CHAN5G(5260), /* Channel 52 */
247 CHAN5G(5280), /* Channel 56 */
248 CHAN5G(5300), /* Channel 60 */
249 CHAN5G(5320), /* Channel 64 */
251 CHAN5G(5500), /* Channel 100 */
252 CHAN5G(5520), /* Channel 104 */
253 CHAN5G(5540), /* Channel 108 */
254 CHAN5G(5560), /* Channel 112 */
255 CHAN5G(5580), /* Channel 116 */
256 CHAN5G(5600), /* Channel 120 */
257 CHAN5G(5620), /* Channel 124 */
258 CHAN5G(5640), /* Channel 128 */
259 CHAN5G(5660), /* Channel 132 */
260 CHAN5G(5680), /* Channel 136 */
261 CHAN5G(5700), /* Channel 140 */
263 CHAN5G(5745), /* Channel 149 */
264 CHAN5G(5765), /* Channel 153 */
265 CHAN5G(5785), /* Channel 157 */
266 CHAN5G(5805), /* Channel 161 */
267 CHAN5G(5825), /* Channel 165 */
270 static const struct ieee80211_rate hwsim_rates
[] = {
272 { .bitrate
= 20, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
273 { .bitrate
= 55, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
274 { .bitrate
= 110, .flags
= IEEE80211_RATE_SHORT_PREAMBLE
},
285 static spinlock_t hwsim_radio_lock
;
286 static struct list_head hwsim_radios
;
288 struct mac80211_hwsim_data
{
289 struct list_head list
;
290 struct ieee80211_hw
*hw
;
292 struct ieee80211_supported_band bands
[2];
293 struct ieee80211_channel channels_2ghz
[ARRAY_SIZE(hwsim_channels_2ghz
)];
294 struct ieee80211_channel channels_5ghz
[ARRAY_SIZE(hwsim_channels_5ghz
)];
295 struct ieee80211_rate rates
[ARRAY_SIZE(hwsim_rates
)];
297 struct mac_address addresses
[2];
299 struct ieee80211_channel
*channel
;
300 unsigned long beacon_int
; /* in jiffies unit */
301 unsigned int rx_filter
;
302 bool started
, idle
, scanning
;
304 struct timer_list beacon_timer
;
306 PS_DISABLED
, PS_ENABLED
, PS_AUTO_POLL
, PS_MANUAL_POLL
308 bool ps_poll_pending
;
309 struct dentry
*debugfs
;
310 struct dentry
*debugfs_ps
;
312 struct sk_buff_head pending
; /* packets pending */
314 * Only radios in the same group can communicate together (the
315 * channel has to match too). Each bit represents a group. A
316 * radio can be in more then one group.
319 struct dentry
*debugfs_group
;
325 struct hwsim_radiotap_hdr
{
326 struct ieee80211_radiotap_header hdr
;
333 /* MAC80211_HWSIM netlinf family */
334 static struct genl_family hwsim_genl_family
= {
335 .id
= GENL_ID_GENERATE
,
337 .name
= "MAC80211_HWSIM",
339 .maxattr
= HWSIM_ATTR_MAX
,
342 /* MAC80211_HWSIM netlink policy */
344 static struct nla_policy hwsim_genl_policy
[HWSIM_ATTR_MAX
+ 1] = {
345 [HWSIM_ATTR_ADDR_RECEIVER
] = { .type
= NLA_UNSPEC
,
346 .len
= 6*sizeof(u8
) },
347 [HWSIM_ATTR_ADDR_TRANSMITTER
] = { .type
= NLA_UNSPEC
,
348 .len
= 6*sizeof(u8
) },
349 [HWSIM_ATTR_FRAME
] = { .type
= NLA_BINARY
,
350 .len
= IEEE80211_MAX_DATA_LEN
},
351 [HWSIM_ATTR_FLAGS
] = { .type
= NLA_U32
},
352 [HWSIM_ATTR_RX_RATE
] = { .type
= NLA_U32
},
353 [HWSIM_ATTR_SIGNAL
] = { .type
= NLA_U32
},
354 [HWSIM_ATTR_TX_INFO
] = { .type
= NLA_UNSPEC
,
355 .len
= IEEE80211_TX_MAX_RATES
*sizeof(
356 struct hwsim_tx_rate
)},
357 [HWSIM_ATTR_COOKIE
] = { .type
= NLA_U64
},
360 static netdev_tx_t
hwsim_mon_xmit(struct sk_buff
*skb
,
361 struct net_device
*dev
)
363 /* TODO: allow packet injection */
369 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw
*hw
,
370 struct sk_buff
*tx_skb
)
372 struct mac80211_hwsim_data
*data
= hw
->priv
;
374 struct hwsim_radiotap_hdr
*hdr
;
376 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(tx_skb
);
377 struct ieee80211_rate
*txrate
= ieee80211_get_tx_rate(hw
, info
);
379 if (!netif_running(hwsim_mon
))
382 skb
= skb_copy_expand(tx_skb
, sizeof(*hdr
), 0, GFP_ATOMIC
);
386 hdr
= (struct hwsim_radiotap_hdr
*) skb_push(skb
, sizeof(*hdr
));
387 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
389 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
390 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
391 (1 << IEEE80211_RADIOTAP_RATE
) |
392 (1 << IEEE80211_RADIOTAP_CHANNEL
));
394 hdr
->rt_rate
= txrate
->bitrate
/ 5;
395 hdr
->rt_channel
= cpu_to_le16(data
->channel
->center_freq
);
396 flags
= IEEE80211_CHAN_2GHZ
;
397 if (txrate
->flags
& IEEE80211_RATE_ERP_G
)
398 flags
|= IEEE80211_CHAN_OFDM
;
400 flags
|= IEEE80211_CHAN_CCK
;
401 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
403 skb
->dev
= hwsim_mon
;
404 skb_set_mac_header(skb
, 0);
405 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
406 skb
->pkt_type
= PACKET_OTHERHOST
;
407 skb
->protocol
= htons(ETH_P_802_2
);
408 memset(skb
->cb
, 0, sizeof(skb
->cb
));
413 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw
*hw
, const u8
*addr
)
415 struct mac80211_hwsim_data
*data
= hw
->priv
;
417 struct hwsim_radiotap_hdr
*hdr
;
419 struct ieee80211_hdr
*hdr11
;
421 if (!netif_running(hwsim_mon
))
424 skb
= dev_alloc_skb(100);
428 hdr
= (struct hwsim_radiotap_hdr
*) skb_put(skb
, sizeof(*hdr
));
429 hdr
->hdr
.it_version
= PKTHDR_RADIOTAP_VERSION
;
431 hdr
->hdr
.it_len
= cpu_to_le16(sizeof(*hdr
));
432 hdr
->hdr
.it_present
= cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS
) |
433 (1 << IEEE80211_RADIOTAP_CHANNEL
));
436 hdr
->rt_channel
= cpu_to_le16(data
->channel
->center_freq
);
437 flags
= IEEE80211_CHAN_2GHZ
;
438 hdr
->rt_chbitmask
= cpu_to_le16(flags
);
440 hdr11
= (struct ieee80211_hdr
*) skb_put(skb
, 10);
441 hdr11
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
442 IEEE80211_STYPE_ACK
);
443 hdr11
->duration_id
= cpu_to_le16(0);
444 memcpy(hdr11
->addr1
, addr
, ETH_ALEN
);
446 skb
->dev
= hwsim_mon
;
447 skb_set_mac_header(skb
, 0);
448 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
449 skb
->pkt_type
= PACKET_OTHERHOST
;
450 skb
->protocol
= htons(ETH_P_802_2
);
451 memset(skb
->cb
, 0, sizeof(skb
->cb
));
456 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data
*data
,
465 /* TODO: accept (some) Beacons by default and other frames only
466 * if pending PS-Poll has been sent */
469 /* Allow unicast frames to own address if there is a pending
471 if (data
->ps_poll_pending
&&
472 memcmp(data
->hw
->wiphy
->perm_addr
, skb
->data
+ 4,
474 data
->ps_poll_pending
= false;
484 struct mac80211_hwsim_addr_match_data
{
489 static void mac80211_hwsim_addr_iter(void *data
, u8
*mac
,
490 struct ieee80211_vif
*vif
)
492 struct mac80211_hwsim_addr_match_data
*md
= data
;
493 if (memcmp(mac
, md
->addr
, ETH_ALEN
) == 0)
498 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data
*data
,
501 struct mac80211_hwsim_addr_match_data md
;
503 if (memcmp(addr
, data
->hw
->wiphy
->perm_addr
, ETH_ALEN
) == 0)
508 ieee80211_iterate_active_interfaces_atomic(data
->hw
,
509 mac80211_hwsim_addr_iter
,
515 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw
*hw
,
516 struct sk_buff
*my_skb
,
520 struct mac80211_hwsim_data
*data
= hw
->priv
;
521 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) my_skb
->data
;
522 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(my_skb
);
524 unsigned int hwsim_flags
= 0;
526 struct hwsim_tx_rate tx_attempts
[IEEE80211_TX_MAX_RATES
];
529 wiphy_debug(hw
->wiphy
, "Trying to TX when idle - reject\n");
530 dev_kfree_skb(my_skb
);
534 if (data
->ps
!= PS_DISABLED
)
535 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
536 /* If the queue contains MAX_QUEUE skb's drop some */
537 if (skb_queue_len(&data
->pending
) >= MAX_QUEUE
) {
538 /* Droping until WARN_QUEUE level */
539 while (skb_queue_len(&data
->pending
) >= WARN_QUEUE
)
540 skb_dequeue(&data
->pending
);
543 skb
= genlmsg_new(NLMSG_GOODSIZE
, GFP_ATOMIC
);
545 goto nla_put_failure
;
547 msg_head
= genlmsg_put(skb
, 0, 0, &hwsim_genl_family
, 0,
549 if (msg_head
== NULL
) {
550 printk(KERN_DEBUG
"mac80211_hwsim: problem with msg_head\n");
551 goto nla_put_failure
;
554 NLA_PUT(skb
, HWSIM_ATTR_ADDR_TRANSMITTER
,
555 sizeof(struct mac_address
), data
->addresses
[1].addr
);
557 /* We get the skb->data */
558 NLA_PUT(skb
, HWSIM_ATTR_FRAME
, my_skb
->len
, my_skb
->data
);
560 /* We get the flags for this transmission, and we translate them to
563 if (info
->flags
& IEEE80211_TX_CTL_REQ_TX_STATUS
)
564 hwsim_flags
|= HWSIM_TX_CTL_REQ_TX_STATUS
;
566 if (info
->flags
& IEEE80211_TX_CTL_NO_ACK
)
567 hwsim_flags
|= HWSIM_TX_CTL_NO_ACK
;
569 NLA_PUT_U32(skb
, HWSIM_ATTR_FLAGS
, hwsim_flags
);
571 /* We get the tx control (rate and retries) info*/
573 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
574 tx_attempts
[i
].idx
= info
->status
.rates
[i
].idx
;
575 tx_attempts
[i
].count
= info
->status
.rates
[i
].count
;
578 NLA_PUT(skb
, HWSIM_ATTR_TX_INFO
,
579 sizeof(struct hwsim_tx_rate
)*IEEE80211_TX_MAX_RATES
,
582 /* We create a cookie to identify this skb */
583 NLA_PUT_U64(skb
, HWSIM_ATTR_COOKIE
, (unsigned long) my_skb
);
585 genlmsg_end(skb
, msg_head
);
586 genlmsg_unicast(&init_net
, skb
, dst_pid
);
588 /* Enqueue the packet */
589 skb_queue_tail(&data
->pending
, my_skb
);
593 printk(KERN_DEBUG
"mac80211_hwsim: error occured in %s\n", __func__
);
596 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw
*hw
,
599 struct mac80211_hwsim_data
*data
= hw
->priv
, *data2
;
601 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
602 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
603 struct ieee80211_rx_status rx_status
;
606 wiphy_debug(hw
->wiphy
, "Trying to TX when idle - reject\n");
610 memset(&rx_status
, 0, sizeof(rx_status
));
611 /* TODO: set mactime */
612 rx_status
.freq
= data
->channel
->center_freq
;
613 rx_status
.band
= data
->channel
->band
;
614 rx_status
.rate_idx
= info
->control
.rates
[0].idx
;
615 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
616 rx_status
.flag
|= RX_FLAG_HT
;
617 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_40_MHZ_WIDTH
)
618 rx_status
.flag
|= RX_FLAG_40MHZ
;
619 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_SHORT_GI
)
620 rx_status
.flag
|= RX_FLAG_SHORT_GI
;
621 /* TODO: simulate real signal strength (and optional packet loss) */
622 rx_status
.signal
= data
->power_level
- 50;
624 if (data
->ps
!= PS_DISABLED
)
625 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
627 /* release the skb's source info */
634 /* Copy skb to all enabled radios that are on the current frequency */
635 spin_lock(&hwsim_radio_lock
);
636 list_for_each_entry(data2
, &hwsim_radios
, list
) {
637 struct sk_buff
*nskb
;
642 if (data2
->idle
|| !data2
->started
||
643 !hwsim_ps_rx_ok(data2
, skb
) ||
644 !data
->channel
|| !data2
->channel
||
645 data
->channel
->center_freq
!= data2
->channel
->center_freq
||
646 !(data
->group
& data2
->group
))
649 nskb
= skb_copy(skb
, GFP_ATOMIC
);
653 if (mac80211_hwsim_addr_match(data2
, hdr
->addr1
))
655 memcpy(IEEE80211_SKB_RXCB(nskb
), &rx_status
, sizeof(rx_status
));
656 ieee80211_rx_irqsafe(data2
->hw
, nskb
);
658 spin_unlock(&hwsim_radio_lock
);
663 static void mac80211_hwsim_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
666 struct ieee80211_tx_info
*txi
;
669 mac80211_hwsim_monitor_rx(hw
, skb
);
672 /* Should not happen; just a sanity check for addr1 use */
677 /* wmediumd mode check */
681 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _pid
);
683 /* NO wmediumd detected, perfect medium simulation */
684 ack
= mac80211_hwsim_tx_frame_no_nl(hw
, skb
);
686 if (ack
&& skb
->len
>= 16) {
687 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
688 mac80211_hwsim_monitor_ack(hw
, hdr
->addr2
);
691 txi
= IEEE80211_SKB_CB(skb
);
693 if (txi
->control
.vif
)
694 hwsim_check_magic(txi
->control
.vif
);
695 if (txi
->control
.sta
)
696 hwsim_check_sta_magic(txi
->control
.sta
);
698 ieee80211_tx_info_clear_status(txi
);
699 if (!(txi
->flags
& IEEE80211_TX_CTL_NO_ACK
) && ack
)
700 txi
->flags
|= IEEE80211_TX_STAT_ACK
;
701 ieee80211_tx_status_irqsafe(hw
, skb
);
705 static int mac80211_hwsim_start(struct ieee80211_hw
*hw
)
707 struct mac80211_hwsim_data
*data
= hw
->priv
;
708 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
714 static void mac80211_hwsim_stop(struct ieee80211_hw
*hw
)
716 struct mac80211_hwsim_data
*data
= hw
->priv
;
718 del_timer(&data
->beacon_timer
);
719 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
723 static int mac80211_hwsim_add_interface(struct ieee80211_hw
*hw
,
724 struct ieee80211_vif
*vif
)
726 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
727 __func__
, ieee80211_vif_type_p2p(vif
),
729 hwsim_set_magic(vif
);
734 static int mac80211_hwsim_change_interface(struct ieee80211_hw
*hw
,
735 struct ieee80211_vif
*vif
,
736 enum nl80211_iftype newtype
,
739 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
740 wiphy_debug(hw
->wiphy
,
741 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
742 __func__
, ieee80211_vif_type_p2p(vif
),
744 hwsim_check_magic(vif
);
749 static void mac80211_hwsim_remove_interface(
750 struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
752 wiphy_debug(hw
->wiphy
, "%s (type=%d mac_addr=%pM)\n",
753 __func__
, ieee80211_vif_type_p2p(vif
),
755 hwsim_check_magic(vif
);
756 hwsim_clear_magic(vif
);
760 static void mac80211_hwsim_beacon_tx(void *arg
, u8
*mac
,
761 struct ieee80211_vif
*vif
)
763 struct ieee80211_hw
*hw
= arg
;
765 struct ieee80211_tx_info
*info
;
768 hwsim_check_magic(vif
);
770 if (vif
->type
!= NL80211_IFTYPE_AP
&&
771 vif
->type
!= NL80211_IFTYPE_MESH_POINT
&&
772 vif
->type
!= NL80211_IFTYPE_ADHOC
)
775 skb
= ieee80211_beacon_get(hw
, vif
);
778 info
= IEEE80211_SKB_CB(skb
);
780 mac80211_hwsim_monitor_rx(hw
, skb
);
782 /* wmediumd mode check */
786 return mac80211_hwsim_tx_frame_nl(hw
, skb
, _pid
);
788 mac80211_hwsim_tx_frame_no_nl(hw
, skb
);
793 static void mac80211_hwsim_beacon(unsigned long arg
)
795 struct ieee80211_hw
*hw
= (struct ieee80211_hw
*) arg
;
796 struct mac80211_hwsim_data
*data
= hw
->priv
;
801 ieee80211_iterate_active_interfaces_atomic(
802 hw
, mac80211_hwsim_beacon_tx
, hw
);
804 data
->beacon_timer
.expires
= jiffies
+ data
->beacon_int
;
805 add_timer(&data
->beacon_timer
);
808 static const char *hwsim_chantypes
[] = {
809 [NL80211_CHAN_NO_HT
] = "noht",
810 [NL80211_CHAN_HT20
] = "ht20",
811 [NL80211_CHAN_HT40MINUS
] = "ht40-",
812 [NL80211_CHAN_HT40PLUS
] = "ht40+",
815 static int mac80211_hwsim_config(struct ieee80211_hw
*hw
, u32 changed
)
817 struct mac80211_hwsim_data
*data
= hw
->priv
;
818 struct ieee80211_conf
*conf
= &hw
->conf
;
819 static const char *smps_modes
[IEEE80211_SMPS_NUM_MODES
] = {
820 [IEEE80211_SMPS_AUTOMATIC
] = "auto",
821 [IEEE80211_SMPS_OFF
] = "off",
822 [IEEE80211_SMPS_STATIC
] = "static",
823 [IEEE80211_SMPS_DYNAMIC
] = "dynamic",
826 wiphy_debug(hw
->wiphy
,
827 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
829 conf
->channel
->center_freq
,
830 hwsim_chantypes
[conf
->channel_type
],
831 !!(conf
->flags
& IEEE80211_CONF_IDLE
),
832 !!(conf
->flags
& IEEE80211_CONF_PS
),
833 smps_modes
[conf
->smps_mode
]);
835 data
->idle
= !!(conf
->flags
& IEEE80211_CONF_IDLE
);
837 data
->channel
= conf
->channel
;
838 data
->power_level
= conf
->power_level
;
839 if (!data
->started
|| !data
->beacon_int
)
840 del_timer(&data
->beacon_timer
);
842 mod_timer(&data
->beacon_timer
, jiffies
+ data
->beacon_int
);
848 static void mac80211_hwsim_configure_filter(struct ieee80211_hw
*hw
,
849 unsigned int changed_flags
,
850 unsigned int *total_flags
,u64 multicast
)
852 struct mac80211_hwsim_data
*data
= hw
->priv
;
854 wiphy_debug(hw
->wiphy
, "%s\n", __func__
);
857 if (*total_flags
& FIF_PROMISC_IN_BSS
)
858 data
->rx_filter
|= FIF_PROMISC_IN_BSS
;
859 if (*total_flags
& FIF_ALLMULTI
)
860 data
->rx_filter
|= FIF_ALLMULTI
;
862 *total_flags
= data
->rx_filter
;
865 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw
*hw
,
866 struct ieee80211_vif
*vif
,
867 struct ieee80211_bss_conf
*info
,
870 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
871 struct mac80211_hwsim_data
*data
= hw
->priv
;
873 hwsim_check_magic(vif
);
875 wiphy_debug(hw
->wiphy
, "%s(changed=0x%x)\n", __func__
, changed
);
877 if (changed
& BSS_CHANGED_BSSID
) {
878 wiphy_debug(hw
->wiphy
, "%s: BSSID changed: %pM\n",
879 __func__
, info
->bssid
);
880 memcpy(vp
->bssid
, info
->bssid
, ETH_ALEN
);
883 if (changed
& BSS_CHANGED_ASSOC
) {
884 wiphy_debug(hw
->wiphy
, " ASSOC: assoc=%d aid=%d\n",
885 info
->assoc
, info
->aid
);
886 vp
->assoc
= info
->assoc
;
890 if (changed
& BSS_CHANGED_BEACON_INT
) {
891 wiphy_debug(hw
->wiphy
, " BCNINT: %d\n", info
->beacon_int
);
892 data
->beacon_int
= 1024 * info
->beacon_int
/ 1000 * HZ
/ 1000;
893 if (WARN_ON(!data
->beacon_int
))
894 data
->beacon_int
= 1;
896 mod_timer(&data
->beacon_timer
,
897 jiffies
+ data
->beacon_int
);
900 if (changed
& BSS_CHANGED_ERP_CTS_PROT
) {
901 wiphy_debug(hw
->wiphy
, " ERP_CTS_PROT: %d\n",
905 if (changed
& BSS_CHANGED_ERP_PREAMBLE
) {
906 wiphy_debug(hw
->wiphy
, " ERP_PREAMBLE: %d\n",
907 info
->use_short_preamble
);
910 if (changed
& BSS_CHANGED_ERP_SLOT
) {
911 wiphy_debug(hw
->wiphy
, " ERP_SLOT: %d\n", info
->use_short_slot
);
914 if (changed
& BSS_CHANGED_HT
) {
915 wiphy_debug(hw
->wiphy
, " HT: op_mode=0x%x, chantype=%s\n",
916 info
->ht_operation_mode
,
917 hwsim_chantypes
[info
->channel_type
]);
920 if (changed
& BSS_CHANGED_BASIC_RATES
) {
921 wiphy_debug(hw
->wiphy
, " BASIC_RATES: 0x%llx\n",
922 (unsigned long long) info
->basic_rates
);
926 static int mac80211_hwsim_sta_add(struct ieee80211_hw
*hw
,
927 struct ieee80211_vif
*vif
,
928 struct ieee80211_sta
*sta
)
930 hwsim_check_magic(vif
);
931 hwsim_set_sta_magic(sta
);
936 static int mac80211_hwsim_sta_remove(struct ieee80211_hw
*hw
,
937 struct ieee80211_vif
*vif
,
938 struct ieee80211_sta
*sta
)
940 hwsim_check_magic(vif
);
941 hwsim_clear_sta_magic(sta
);
946 static void mac80211_hwsim_sta_notify(struct ieee80211_hw
*hw
,
947 struct ieee80211_vif
*vif
,
948 enum sta_notify_cmd cmd
,
949 struct ieee80211_sta
*sta
)
951 hwsim_check_magic(vif
);
954 case STA_NOTIFY_SLEEP
:
955 case STA_NOTIFY_AWAKE
:
956 /* TODO: make good use of these flags */
959 WARN(1, "Invalid sta notify: %d\n", cmd
);
964 static int mac80211_hwsim_set_tim(struct ieee80211_hw
*hw
,
965 struct ieee80211_sta
*sta
,
968 hwsim_check_sta_magic(sta
);
972 static int mac80211_hwsim_conf_tx(
973 struct ieee80211_hw
*hw
, u16 queue
,
974 const struct ieee80211_tx_queue_params
*params
)
976 wiphy_debug(hw
->wiphy
,
977 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
979 params
->txop
, params
->cw_min
,
980 params
->cw_max
, params
->aifs
);
984 static int mac80211_hwsim_get_survey(
985 struct ieee80211_hw
*hw
, int idx
,
986 struct survey_info
*survey
)
988 struct ieee80211_conf
*conf
= &hw
->conf
;
990 wiphy_debug(hw
->wiphy
, "%s (idx=%d)\n", __func__
, idx
);
995 /* Current channel */
996 survey
->channel
= conf
->channel
;
999 * Magically conjured noise level --- this is only ok for simulated hardware.
1001 * A real driver which cannot determine the real channel noise MUST NOT
1002 * report any noise, especially not a magically conjured one :-)
1004 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
1005 survey
->noise
= -92;
1010 #ifdef CONFIG_NL80211_TESTMODE
1012 * This section contains example code for using netlink
1013 * attributes with the testmode command in nl80211.
1016 /* These enums need to be kept in sync with userspace */
1017 enum hwsim_testmode_attr
{
1018 __HWSIM_TM_ATTR_INVALID
= 0,
1019 HWSIM_TM_ATTR_CMD
= 1,
1020 HWSIM_TM_ATTR_PS
= 2,
1023 __HWSIM_TM_ATTR_AFTER_LAST
,
1024 HWSIM_TM_ATTR_MAX
= __HWSIM_TM_ATTR_AFTER_LAST
- 1
1027 enum hwsim_testmode_cmd
{
1028 HWSIM_TM_CMD_SET_PS
= 0,
1029 HWSIM_TM_CMD_GET_PS
= 1,
1032 static const struct nla_policy hwsim_testmode_policy
[HWSIM_TM_ATTR_MAX
+ 1] = {
1033 [HWSIM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
1034 [HWSIM_TM_ATTR_PS
] = { .type
= NLA_U32
},
1037 static int hwsim_fops_ps_write(void *dat
, u64 val
);
1039 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw
*hw
,
1040 void *data
, int len
)
1042 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1043 struct nlattr
*tb
[HWSIM_TM_ATTR_MAX
+ 1];
1044 struct sk_buff
*skb
;
1047 err
= nla_parse(tb
, HWSIM_TM_ATTR_MAX
, data
, len
,
1048 hwsim_testmode_policy
);
1052 if (!tb
[HWSIM_TM_ATTR_CMD
])
1055 switch (nla_get_u32(tb
[HWSIM_TM_ATTR_CMD
])) {
1056 case HWSIM_TM_CMD_SET_PS
:
1057 if (!tb
[HWSIM_TM_ATTR_PS
])
1059 ps
= nla_get_u32(tb
[HWSIM_TM_ATTR_PS
]);
1060 return hwsim_fops_ps_write(hwsim
, ps
);
1061 case HWSIM_TM_CMD_GET_PS
:
1062 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
1063 nla_total_size(sizeof(u32
)));
1066 NLA_PUT_U32(skb
, HWSIM_TM_ATTR_PS
, hwsim
->ps
);
1067 return cfg80211_testmode_reply(skb
);
1078 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw
*hw
,
1079 struct ieee80211_vif
*vif
,
1080 enum ieee80211_ampdu_mlme_action action
,
1081 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
1085 case IEEE80211_AMPDU_TX_START
:
1086 ieee80211_start_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1088 case IEEE80211_AMPDU_TX_STOP
:
1089 ieee80211_stop_tx_ba_cb_irqsafe(vif
, sta
->addr
, tid
);
1091 case IEEE80211_AMPDU_TX_OPERATIONAL
:
1093 case IEEE80211_AMPDU_RX_START
:
1094 case IEEE80211_AMPDU_RX_STOP
:
1103 static void mac80211_hwsim_flush(struct ieee80211_hw
*hw
, bool drop
)
1105 /* Not implemented, queues only on kernel side */
1108 struct hw_scan_done
{
1109 struct delayed_work w
;
1110 struct ieee80211_hw
*hw
;
1113 static void hw_scan_done(struct work_struct
*work
)
1115 struct hw_scan_done
*hsd
=
1116 container_of(work
, struct hw_scan_done
, w
.work
);
1118 ieee80211_scan_completed(hsd
->hw
, false);
1122 static int mac80211_hwsim_hw_scan(struct ieee80211_hw
*hw
,
1123 struct ieee80211_vif
*vif
,
1124 struct cfg80211_scan_request
*req
)
1126 struct hw_scan_done
*hsd
= kzalloc(sizeof(*hsd
), GFP_KERNEL
);
1133 INIT_DELAYED_WORK(&hsd
->w
, hw_scan_done
);
1135 printk(KERN_DEBUG
"hwsim hw_scan request\n");
1136 for (i
= 0; i
< req
->n_channels
; i
++)
1137 printk(KERN_DEBUG
"hwsim hw_scan freq %d\n",
1138 req
->channels
[i
]->center_freq
);
1139 print_hex_dump(KERN_DEBUG
, "scan IEs: ", DUMP_PREFIX_OFFSET
,
1140 16, 1, req
->ie
, req
->ie_len
, 1);
1142 ieee80211_queue_delayed_work(hw
, &hsd
->w
, 2 * HZ
);
1147 static void mac80211_hwsim_sw_scan(struct ieee80211_hw
*hw
)
1149 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1151 mutex_lock(&hwsim
->mutex
);
1153 if (hwsim
->scanning
) {
1154 printk(KERN_DEBUG
"two hwsim sw_scans detected!\n");
1158 printk(KERN_DEBUG
"hwsim sw_scan request, prepping stuff\n");
1159 hwsim
->scanning
= true;
1162 mutex_unlock(&hwsim
->mutex
);
1165 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw
*hw
)
1167 struct mac80211_hwsim_data
*hwsim
= hw
->priv
;
1169 mutex_lock(&hwsim
->mutex
);
1171 printk(KERN_DEBUG
"hwsim sw_scan_complete\n");
1172 hwsim
->scanning
= false;
1174 mutex_unlock(&hwsim
->mutex
);
1177 static struct ieee80211_ops mac80211_hwsim_ops
=
1179 .tx
= mac80211_hwsim_tx
,
1180 .start
= mac80211_hwsim_start
,
1181 .stop
= mac80211_hwsim_stop
,
1182 .add_interface
= mac80211_hwsim_add_interface
,
1183 .change_interface
= mac80211_hwsim_change_interface
,
1184 .remove_interface
= mac80211_hwsim_remove_interface
,
1185 .config
= mac80211_hwsim_config
,
1186 .configure_filter
= mac80211_hwsim_configure_filter
,
1187 .bss_info_changed
= mac80211_hwsim_bss_info_changed
,
1188 .sta_add
= mac80211_hwsim_sta_add
,
1189 .sta_remove
= mac80211_hwsim_sta_remove
,
1190 .sta_notify
= mac80211_hwsim_sta_notify
,
1191 .set_tim
= mac80211_hwsim_set_tim
,
1192 .conf_tx
= mac80211_hwsim_conf_tx
,
1193 .get_survey
= mac80211_hwsim_get_survey
,
1194 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd
)
1195 .ampdu_action
= mac80211_hwsim_ampdu_action
,
1196 .sw_scan_start
= mac80211_hwsim_sw_scan
,
1197 .sw_scan_complete
= mac80211_hwsim_sw_scan_complete
,
1198 .flush
= mac80211_hwsim_flush
,
1202 static void mac80211_hwsim_free(void)
1204 struct list_head tmplist
, *i
, *tmp
;
1205 struct mac80211_hwsim_data
*data
, *tmpdata
;
1207 INIT_LIST_HEAD(&tmplist
);
1209 spin_lock_bh(&hwsim_radio_lock
);
1210 list_for_each_safe(i
, tmp
, &hwsim_radios
)
1211 list_move(i
, &tmplist
);
1212 spin_unlock_bh(&hwsim_radio_lock
);
1214 list_for_each_entry_safe(data
, tmpdata
, &tmplist
, list
) {
1215 debugfs_remove(data
->debugfs_group
);
1216 debugfs_remove(data
->debugfs_ps
);
1217 debugfs_remove(data
->debugfs
);
1218 ieee80211_unregister_hw(data
->hw
);
1219 device_unregister(data
->dev
);
1220 ieee80211_free_hw(data
->hw
);
1222 class_destroy(hwsim_class
);
1226 static struct device_driver mac80211_hwsim_driver
= {
1227 .name
= "mac80211_hwsim"
1230 static const struct net_device_ops hwsim_netdev_ops
= {
1231 .ndo_start_xmit
= hwsim_mon_xmit
,
1232 .ndo_change_mtu
= eth_change_mtu
,
1233 .ndo_set_mac_address
= eth_mac_addr
,
1234 .ndo_validate_addr
= eth_validate_addr
,
1237 static void hwsim_mon_setup(struct net_device
*dev
)
1239 dev
->netdev_ops
= &hwsim_netdev_ops
;
1240 dev
->destructor
= free_netdev
;
1242 dev
->tx_queue_len
= 0;
1243 dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1244 memset(dev
->dev_addr
, 0, ETH_ALEN
);
1245 dev
->dev_addr
[0] = 0x12;
1249 static void hwsim_send_ps_poll(void *dat
, u8
*mac
, struct ieee80211_vif
*vif
)
1251 struct mac80211_hwsim_data
*data
= dat
;
1252 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1253 struct sk_buff
*skb
;
1254 struct ieee80211_pspoll
*pspoll
;
1260 wiphy_debug(data
->hw
->wiphy
,
1261 "%s: send PS-Poll to %pM for aid %d\n",
1262 __func__
, vp
->bssid
, vp
->aid
);
1264 skb
= dev_alloc_skb(sizeof(*pspoll
));
1267 pspoll
= (void *) skb_put(skb
, sizeof(*pspoll
));
1268 pspoll
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_CTL
|
1269 IEEE80211_STYPE_PSPOLL
|
1271 pspoll
->aid
= cpu_to_le16(0xc000 | vp
->aid
);
1272 memcpy(pspoll
->bssid
, vp
->bssid
, ETH_ALEN
);
1273 memcpy(pspoll
->ta
, mac
, ETH_ALEN
);
1275 /* wmediumd mode check */
1276 _pid
= wmediumd_pid
;
1279 return mac80211_hwsim_tx_frame_nl(data
->hw
, skb
, _pid
);
1281 if (!mac80211_hwsim_tx_frame_no_nl(data
->hw
, skb
))
1282 printk(KERN_DEBUG
"%s: PS-poll frame not ack'ed\n", __func__
);
1287 static void hwsim_send_nullfunc(struct mac80211_hwsim_data
*data
, u8
*mac
,
1288 struct ieee80211_vif
*vif
, int ps
)
1290 struct hwsim_vif_priv
*vp
= (void *)vif
->drv_priv
;
1291 struct sk_buff
*skb
;
1292 struct ieee80211_hdr
*hdr
;
1298 wiphy_debug(data
->hw
->wiphy
,
1299 "%s: send data::nullfunc to %pM ps=%d\n",
1300 __func__
, vp
->bssid
, ps
);
1302 skb
= dev_alloc_skb(sizeof(*hdr
));
1305 hdr
= (void *) skb_put(skb
, sizeof(*hdr
) - ETH_ALEN
);
1306 hdr
->frame_control
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
1307 IEEE80211_STYPE_NULLFUNC
|
1308 (ps
? IEEE80211_FCTL_PM
: 0));
1309 hdr
->duration_id
= cpu_to_le16(0);
1310 memcpy(hdr
->addr1
, vp
->bssid
, ETH_ALEN
);
1311 memcpy(hdr
->addr2
, mac
, ETH_ALEN
);
1312 memcpy(hdr
->addr3
, vp
->bssid
, ETH_ALEN
);
1314 /* wmediumd mode check */
1315 _pid
= wmediumd_pid
;
1318 return mac80211_hwsim_tx_frame_nl(data
->hw
, skb
, _pid
);
1320 if (!mac80211_hwsim_tx_frame_no_nl(data
->hw
, skb
))
1321 printk(KERN_DEBUG
"%s: nullfunc frame not ack'ed\n", __func__
);
1326 static void hwsim_send_nullfunc_ps(void *dat
, u8
*mac
,
1327 struct ieee80211_vif
*vif
)
1329 struct mac80211_hwsim_data
*data
= dat
;
1330 hwsim_send_nullfunc(data
, mac
, vif
, 1);
1334 static void hwsim_send_nullfunc_no_ps(void *dat
, u8
*mac
,
1335 struct ieee80211_vif
*vif
)
1337 struct mac80211_hwsim_data
*data
= dat
;
1338 hwsim_send_nullfunc(data
, mac
, vif
, 0);
1342 static int hwsim_fops_ps_read(void *dat
, u64
*val
)
1344 struct mac80211_hwsim_data
*data
= dat
;
1349 static int hwsim_fops_ps_write(void *dat
, u64 val
)
1351 struct mac80211_hwsim_data
*data
= dat
;
1352 enum ps_mode old_ps
;
1354 if (val
!= PS_DISABLED
&& val
!= PS_ENABLED
&& val
!= PS_AUTO_POLL
&&
1355 val
!= PS_MANUAL_POLL
)
1361 if (val
== PS_MANUAL_POLL
) {
1362 ieee80211_iterate_active_interfaces(data
->hw
,
1363 hwsim_send_ps_poll
, data
);
1364 data
->ps_poll_pending
= true;
1365 } else if (old_ps
== PS_DISABLED
&& val
!= PS_DISABLED
) {
1366 ieee80211_iterate_active_interfaces(data
->hw
,
1367 hwsim_send_nullfunc_ps
,
1369 } else if (old_ps
!= PS_DISABLED
&& val
== PS_DISABLED
) {
1370 ieee80211_iterate_active_interfaces(data
->hw
,
1371 hwsim_send_nullfunc_no_ps
,
1378 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps
, hwsim_fops_ps_read
, hwsim_fops_ps_write
,
1382 static int hwsim_fops_group_read(void *dat
, u64
*val
)
1384 struct mac80211_hwsim_data
*data
= dat
;
1389 static int hwsim_fops_group_write(void *dat
, u64 val
)
1391 struct mac80211_hwsim_data
*data
= dat
;
1396 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group
,
1397 hwsim_fops_group_read
, hwsim_fops_group_write
,
1400 struct mac80211_hwsim_data
*get_hwsim_data_ref_from_addr(
1401 struct mac_address
*addr
)
1403 struct mac80211_hwsim_data
*data
;
1404 bool _found
= false;
1406 spin_lock_bh(&hwsim_radio_lock
);
1407 list_for_each_entry(data
, &hwsim_radios
, list
) {
1408 if (memcmp(data
->addresses
[1].addr
, addr
,
1409 sizeof(struct mac_address
)) == 0) {
1414 spin_unlock_bh(&hwsim_radio_lock
);
1422 static int hwsim_tx_info_frame_received_nl(struct sk_buff
*skb_2
,
1423 struct genl_info
*info
)
1426 struct ieee80211_hdr
*hdr
;
1427 struct mac80211_hwsim_data
*data2
;
1428 struct ieee80211_tx_info
*txi
;
1429 struct hwsim_tx_rate
*tx_attempts
;
1430 struct sk_buff __user
*ret_skb
;
1431 struct sk_buff
*skb
, *tmp
;
1432 struct mac_address
*src
;
1433 unsigned int hwsim_flags
;
1438 if (!info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
] ||
1439 !info
->attrs
[HWSIM_ATTR_FLAGS
] ||
1440 !info
->attrs
[HWSIM_ATTR_COOKIE
] ||
1441 !info
->attrs
[HWSIM_ATTR_TX_INFO
])
1444 src
= (struct mac_address
*)nla_data(
1445 info
->attrs
[HWSIM_ATTR_ADDR_TRANSMITTER
]);
1446 hwsim_flags
= nla_get_u32(info
->attrs
[HWSIM_ATTR_FLAGS
]);
1448 ret_skb
= (struct sk_buff __user
*)
1449 (unsigned long) nla_get_u64(info
->attrs
[HWSIM_ATTR_COOKIE
]);
1451 data2
= get_hwsim_data_ref_from_addr(src
);
1456 /* look for the skb matching the cookie passed back from user */
1457 skb_queue_walk_safe(&data2
->pending
, skb
, tmp
) {
1458 if (skb
== ret_skb
) {
1459 skb_unlink(skb
, &data2
->pending
);
1469 /* Tx info received because the frame was broadcasted on user space,
1470 so we get all the necessary info: tx attempts and skb control buff */
1472 tx_attempts
= (struct hwsim_tx_rate
*)nla_data(
1473 info
->attrs
[HWSIM_ATTR_TX_INFO
]);
1475 /* now send back TX status */
1476 txi
= IEEE80211_SKB_CB(skb
);
1478 if (txi
->control
.vif
)
1479 hwsim_check_magic(txi
->control
.vif
);
1480 if (txi
->control
.sta
)
1481 hwsim_check_sta_magic(txi
->control
.sta
);
1483 ieee80211_tx_info_clear_status(txi
);
1485 for (i
= 0; i
< IEEE80211_TX_MAX_RATES
; i
++) {
1486 txi
->status
.rates
[i
].idx
= tx_attempts
[i
].idx
;
1487 txi
->status
.rates
[i
].count
= tx_attempts
[i
].count
;
1488 /*txi->status.rates[i].flags = 0;*/
1491 txi
->status
.ack_signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1493 if (!(hwsim_flags
& HWSIM_TX_CTL_NO_ACK
) &&
1494 (hwsim_flags
& HWSIM_TX_STAT_ACK
)) {
1495 if (skb
->len
>= 16) {
1496 hdr
= (struct ieee80211_hdr
*) skb
->data
;
1497 mac80211_hwsim_monitor_ack(data2
->hw
, hdr
->addr2
);
1500 ieee80211_tx_status_irqsafe(data2
->hw
, skb
);
1507 static int hwsim_cloned_frame_received_nl(struct sk_buff
*skb_2
,
1508 struct genl_info
*info
)
1511 struct mac80211_hwsim_data
*data2
;
1512 struct ieee80211_rx_status rx_status
;
1513 struct mac_address
*dst
;
1516 struct sk_buff
*skb
= NULL
;
1518 if (!info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
] ||
1519 !info
->attrs
[HWSIM_ATTR_FRAME
] ||
1520 !info
->attrs
[HWSIM_ATTR_RX_RATE
] ||
1521 !info
->attrs
[HWSIM_ATTR_SIGNAL
])
1524 dst
= (struct mac_address
*)nla_data(
1525 info
->attrs
[HWSIM_ATTR_ADDR_RECEIVER
]);
1527 frame_data_len
= nla_len(info
->attrs
[HWSIM_ATTR_FRAME
]);
1528 frame_data
= (char *)nla_data(info
->attrs
[HWSIM_ATTR_FRAME
]);
1530 /* Allocate new skb here */
1531 skb
= alloc_skb(frame_data_len
, GFP_KERNEL
);
1535 if (frame_data_len
<= IEEE80211_MAX_DATA_LEN
) {
1537 memcpy(skb_put(skb
, frame_data_len
), frame_data
,
1542 data2
= get_hwsim_data_ref_from_addr(dst
);
1547 /* check if radio is configured properly */
1549 if (data2
->idle
|| !data2
->started
|| !data2
->channel
)
1552 /*A frame is received from user space*/
1553 memset(&rx_status
, 0, sizeof(rx_status
));
1554 rx_status
.freq
= data2
->channel
->center_freq
;
1555 rx_status
.band
= data2
->channel
->band
;
1556 rx_status
.rate_idx
= nla_get_u32(info
->attrs
[HWSIM_ATTR_RX_RATE
]);
1557 rx_status
.signal
= nla_get_u32(info
->attrs
[HWSIM_ATTR_SIGNAL
]);
1559 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
1560 ieee80211_rx_irqsafe(data2
->hw
, skb
);
1564 printk(KERN_DEBUG
"mac80211_hwsim: error occured in %s\n", __func__
);
1571 static int hwsim_register_received_nl(struct sk_buff
*skb_2
,
1572 struct genl_info
*info
)
1577 wmediumd_pid
= info
->snd_pid
;
1579 printk(KERN_DEBUG
"mac80211_hwsim: received a REGISTER, "
1580 "switching to wmediumd mode with pid %d\n", info
->snd_pid
);
1584 printk(KERN_DEBUG
"mac80211_hwsim: error occured in %s\n", __func__
);
1588 /* Generic Netlink operations array */
1589 static struct genl_ops hwsim_ops
[] = {
1591 .cmd
= HWSIM_CMD_REGISTER
,
1592 .policy
= hwsim_genl_policy
,
1593 .doit
= hwsim_register_received_nl
,
1594 .flags
= GENL_ADMIN_PERM
,
1597 .cmd
= HWSIM_CMD_FRAME
,
1598 .policy
= hwsim_genl_policy
,
1599 .doit
= hwsim_cloned_frame_received_nl
,
1602 .cmd
= HWSIM_CMD_TX_INFO_FRAME
,
1603 .policy
= hwsim_genl_policy
,
1604 .doit
= hwsim_tx_info_frame_received_nl
,
1608 static int mac80211_hwsim_netlink_notify(struct notifier_block
*nb
,
1609 unsigned long state
,
1612 struct netlink_notify
*notify
= _notify
;
1614 if (state
!= NETLINK_URELEASE
)
1617 if (notify
->pid
== wmediumd_pid
) {
1618 printk(KERN_INFO
"mac80211_hwsim: wmediumd released netlink"
1619 " socket, switching to perfect channel medium\n");
1626 static struct notifier_block hwsim_netlink_notifier
= {
1627 .notifier_call
= mac80211_hwsim_netlink_notify
,
1630 static int hwsim_init_netlink(void)
1633 printk(KERN_INFO
"mac80211_hwsim: initializing netlink\n");
1637 rc
= genl_register_family_with_ops(&hwsim_genl_family
,
1638 hwsim_ops
, ARRAY_SIZE(hwsim_ops
));
1642 rc
= netlink_register_notifier(&hwsim_netlink_notifier
);
1649 printk(KERN_DEBUG
"mac80211_hwsim: error occured in %s\n", __func__
);
1653 static void hwsim_exit_netlink(void)
1657 printk(KERN_INFO
"mac80211_hwsim: closing netlink\n");
1658 /* unregister the notifier */
1659 netlink_unregister_notifier(&hwsim_netlink_notifier
);
1660 /* unregister the family */
1661 ret
= genl_unregister_family(&hwsim_genl_family
);
1663 printk(KERN_DEBUG
"mac80211_hwsim: "
1664 "unregister family %i\n", ret
);
1667 static int __init
init_mac80211_hwsim(void)
1671 struct mac80211_hwsim_data
*data
;
1672 struct ieee80211_hw
*hw
;
1673 enum ieee80211_band band
;
1675 if (radios
< 1 || radios
> 100)
1679 mac80211_hwsim_ops
.hw_scan
= mac80211_hwsim_hw_scan
;
1680 mac80211_hwsim_ops
.sw_scan_start
= NULL
;
1681 mac80211_hwsim_ops
.sw_scan_complete
= NULL
;
1684 spin_lock_init(&hwsim_radio_lock
);
1685 INIT_LIST_HEAD(&hwsim_radios
);
1687 hwsim_class
= class_create(THIS_MODULE
, "mac80211_hwsim");
1688 if (IS_ERR(hwsim_class
))
1689 return PTR_ERR(hwsim_class
);
1691 memset(addr
, 0, ETH_ALEN
);
1694 for (i
= 0; i
< radios
; i
++) {
1695 printk(KERN_DEBUG
"mac80211_hwsim: Initializing radio %d\n",
1697 hw
= ieee80211_alloc_hw(sizeof(*data
), &mac80211_hwsim_ops
);
1699 printk(KERN_DEBUG
"mac80211_hwsim: ieee80211_alloc_hw "
1707 data
->dev
= device_create(hwsim_class
, NULL
, 0, hw
,
1709 if (IS_ERR(data
->dev
)) {
1711 "mac80211_hwsim: device_create "
1712 "failed (%ld)\n", PTR_ERR(data
->dev
));
1714 goto failed_drvdata
;
1716 data
->dev
->driver
= &mac80211_hwsim_driver
;
1717 skb_queue_head_init(&data
->pending
);
1719 SET_IEEE80211_DEV(hw
, data
->dev
);
1722 memcpy(data
->addresses
[0].addr
, addr
, ETH_ALEN
);
1723 memcpy(data
->addresses
[1].addr
, addr
, ETH_ALEN
);
1724 data
->addresses
[1].addr
[0] |= 0x40;
1725 hw
->wiphy
->n_addresses
= 2;
1726 hw
->wiphy
->addresses
= data
->addresses
;
1729 hw
->wiphy
->max_scan_ssids
= 255;
1730 hw
->wiphy
->max_scan_ie_len
= IEEE80211_MAX_DATA_LEN
;
1733 hw
->channel_change_time
= 1;
1735 hw
->wiphy
->interface_modes
=
1736 BIT(NL80211_IFTYPE_STATION
) |
1737 BIT(NL80211_IFTYPE_AP
) |
1738 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
1739 BIT(NL80211_IFTYPE_P2P_GO
) |
1740 BIT(NL80211_IFTYPE_ADHOC
) |
1741 BIT(NL80211_IFTYPE_MESH_POINT
);
1743 hw
->flags
= IEEE80211_HW_MFP_CAPABLE
|
1744 IEEE80211_HW_SIGNAL_DBM
|
1745 IEEE80211_HW_SUPPORTS_STATIC_SMPS
|
1746 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
1747 IEEE80211_HW_AMPDU_AGGREGATION
;
1749 /* ask mac80211 to reserve space for magic */
1750 hw
->vif_data_size
= sizeof(struct hwsim_vif_priv
);
1751 hw
->sta_data_size
= sizeof(struct hwsim_sta_priv
);
1753 memcpy(data
->channels_2ghz
, hwsim_channels_2ghz
,
1754 sizeof(hwsim_channels_2ghz
));
1755 memcpy(data
->channels_5ghz
, hwsim_channels_5ghz
,
1756 sizeof(hwsim_channels_5ghz
));
1757 memcpy(data
->rates
, hwsim_rates
, sizeof(hwsim_rates
));
1759 for (band
= IEEE80211_BAND_2GHZ
; band
< IEEE80211_NUM_BANDS
; band
++) {
1760 struct ieee80211_supported_band
*sband
= &data
->bands
[band
];
1762 case IEEE80211_BAND_2GHZ
:
1763 sband
->channels
= data
->channels_2ghz
;
1765 ARRAY_SIZE(hwsim_channels_2ghz
);
1766 sband
->bitrates
= data
->rates
;
1767 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
);
1769 case IEEE80211_BAND_5GHZ
:
1770 sband
->channels
= data
->channels_5ghz
;
1772 ARRAY_SIZE(hwsim_channels_5ghz
);
1773 sband
->bitrates
= data
->rates
+ 4;
1774 sband
->n_bitrates
= ARRAY_SIZE(hwsim_rates
) - 4;
1780 sband
->ht_cap
.ht_supported
= true;
1781 sband
->ht_cap
.cap
= IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
1782 IEEE80211_HT_CAP_GRN_FLD
|
1783 IEEE80211_HT_CAP_SGI_40
|
1784 IEEE80211_HT_CAP_DSSSCCK40
;
1785 sband
->ht_cap
.ampdu_factor
= 0x3;
1786 sband
->ht_cap
.ampdu_density
= 0x6;
1787 memset(&sband
->ht_cap
.mcs
, 0,
1788 sizeof(sband
->ht_cap
.mcs
));
1789 sband
->ht_cap
.mcs
.rx_mask
[0] = 0xff;
1790 sband
->ht_cap
.mcs
.rx_mask
[1] = 0xff;
1791 sband
->ht_cap
.mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
1793 hw
->wiphy
->bands
[band
] = sband
;
1795 /* By default all radios are belonging to the first group */
1797 mutex_init(&data
->mutex
);
1799 /* Enable frame retransmissions for lossy channels */
1801 hw
->max_rate_tries
= 11;
1803 /* Work to be done prior to ieee80211_register_hw() */
1805 case HWSIM_REGTEST_DISABLED
:
1806 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
1807 case HWSIM_REGTEST_DRIVER_REG_ALL
:
1808 case HWSIM_REGTEST_DIFF_COUNTRY
:
1810 * Nothing to be done for driver regulatory domain
1811 * hints prior to ieee80211_register_hw()
1814 case HWSIM_REGTEST_WORLD_ROAM
:
1816 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
1817 wiphy_apply_custom_regulatory(hw
->wiphy
,
1818 &hwsim_world_regdom_custom_01
);
1821 case HWSIM_REGTEST_CUSTOM_WORLD
:
1822 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
1823 wiphy_apply_custom_regulatory(hw
->wiphy
,
1824 &hwsim_world_regdom_custom_01
);
1826 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
1828 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
1829 wiphy_apply_custom_regulatory(hw
->wiphy
,
1830 &hwsim_world_regdom_custom_01
);
1831 } else if (i
== 1) {
1832 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
1833 wiphy_apply_custom_regulatory(hw
->wiphy
,
1834 &hwsim_world_regdom_custom_02
);
1837 case HWSIM_REGTEST_STRICT_ALL
:
1838 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
1840 case HWSIM_REGTEST_STRICT_FOLLOW
:
1841 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
1843 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
1845 case HWSIM_REGTEST_ALL
:
1847 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
1848 wiphy_apply_custom_regulatory(hw
->wiphy
,
1849 &hwsim_world_regdom_custom_01
);
1850 } else if (i
== 1) {
1851 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
;
1852 wiphy_apply_custom_regulatory(hw
->wiphy
,
1853 &hwsim_world_regdom_custom_02
);
1855 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
;
1861 /* give the regulatory workqueue a chance to run */
1863 schedule_timeout_interruptible(1);
1864 err
= ieee80211_register_hw(hw
);
1866 printk(KERN_DEBUG
"mac80211_hwsim: "
1867 "ieee80211_register_hw failed (%d)\n", err
);
1871 /* Work to be done after to ieee80211_register_hw() */
1873 case HWSIM_REGTEST_WORLD_ROAM
:
1874 case HWSIM_REGTEST_DISABLED
:
1876 case HWSIM_REGTEST_DRIVER_REG_FOLLOW
:
1878 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1880 case HWSIM_REGTEST_DRIVER_REG_ALL
:
1881 case HWSIM_REGTEST_STRICT_ALL
:
1882 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1884 case HWSIM_REGTEST_DIFF_COUNTRY
:
1885 if (i
< ARRAY_SIZE(hwsim_alpha2s
))
1886 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[i
]);
1888 case HWSIM_REGTEST_CUSTOM_WORLD
:
1889 case HWSIM_REGTEST_CUSTOM_WORLD_2
:
1891 * Nothing to be done for custom world regulatory
1892 * domains after to ieee80211_register_hw
1895 case HWSIM_REGTEST_STRICT_FOLLOW
:
1897 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1899 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG
:
1901 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1903 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
1905 case HWSIM_REGTEST_ALL
:
1907 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[0]);
1909 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[1]);
1911 regulatory_hint(hw
->wiphy
, hwsim_alpha2s
[2]);
1917 wiphy_debug(hw
->wiphy
, "hwaddr %pm registered\n",
1918 hw
->wiphy
->perm_addr
);
1920 data
->debugfs
= debugfs_create_dir("hwsim",
1921 hw
->wiphy
->debugfsdir
);
1922 data
->debugfs_ps
= debugfs_create_file("ps", 0666,
1923 data
->debugfs
, data
,
1925 data
->debugfs_group
= debugfs_create_file("group", 0666,
1926 data
->debugfs
, data
,
1929 setup_timer(&data
->beacon_timer
, mac80211_hwsim_beacon
,
1930 (unsigned long) hw
);
1932 list_add_tail(&data
->list
, &hwsim_radios
);
1935 hwsim_mon
= alloc_netdev(0, "hwsim%d", hwsim_mon_setup
);
1936 if (hwsim_mon
== NULL
)
1941 err
= dev_alloc_name(hwsim_mon
, hwsim_mon
->name
);
1946 err
= register_netdevice(hwsim_mon
);
1952 err
= hwsim_init_netlink();
1959 printk(KERN_DEBUG
"mac_80211_hwsim: failed initializing netlink\n");
1964 free_netdev(hwsim_mon
);
1965 mac80211_hwsim_free();
1969 device_unregister(data
->dev
);
1971 ieee80211_free_hw(hw
);
1973 mac80211_hwsim_free();
1978 static void __exit
exit_mac80211_hwsim(void)
1980 printk(KERN_DEBUG
"mac80211_hwsim: unregister radios\n");
1982 hwsim_exit_netlink();
1984 mac80211_hwsim_free();
1985 unregister_netdev(hwsim_mon
);
1989 module_init(init_mac80211_hwsim
);
1990 module_exit(exit_mac80211_hwsim
);