2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/list.h>
11 #include <linux/if_ether.h>
12 #include <linux/ieee80211.h>
13 #include <linux/nl80211.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/netlink.h>
16 #include <linux/etherdevice.h>
17 #include <net/net_namespace.h>
18 #include <net/genetlink.h>
19 #include <net/cfg80211.h>
25 /* the netlink family */
26 static struct genl_family nl80211_fam
= {
27 .id
= GENL_ID_GENERATE
, /* don't bother with a hardcoded ID */
28 .name
= "nl80211", /* have users key off the name instead */
29 .hdrsize
= 0, /* no private header */
30 .version
= 1, /* no particular meaning now */
31 .maxattr
= NL80211_ATTR_MAX
,
35 /* internal helper: get rdev and dev */
36 static int get_rdev_dev_by_info_ifindex(struct genl_info
*info
,
37 struct cfg80211_registered_device
**rdev
,
38 struct net_device
**dev
)
40 struct nlattr
**attrs
= info
->attrs
;
43 if (!attrs
[NL80211_ATTR_IFINDEX
])
46 ifindex
= nla_get_u32(attrs
[NL80211_ATTR_IFINDEX
]);
47 *dev
= dev_get_by_index(genl_info_net(info
), ifindex
);
51 *rdev
= cfg80211_get_dev_from_ifindex(genl_info_net(info
), ifindex
);
54 return PTR_ERR(*rdev
);
60 /* policy for the attributes */
61 static struct nla_policy nl80211_policy
[NL80211_ATTR_MAX
+1] __read_mostly
= {
62 [NL80211_ATTR_WIPHY
] = { .type
= NLA_U32
},
63 [NL80211_ATTR_WIPHY_NAME
] = { .type
= NLA_NUL_STRING
,
65 [NL80211_ATTR_WIPHY_TXQ_PARAMS
] = { .type
= NLA_NESTED
},
66 [NL80211_ATTR_WIPHY_FREQ
] = { .type
= NLA_U32
},
67 [NL80211_ATTR_WIPHY_CHANNEL_TYPE
] = { .type
= NLA_U32
},
68 [NL80211_ATTR_WIPHY_RETRY_SHORT
] = { .type
= NLA_U8
},
69 [NL80211_ATTR_WIPHY_RETRY_LONG
] = { .type
= NLA_U8
},
70 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD
] = { .type
= NLA_U32
},
71 [NL80211_ATTR_WIPHY_RTS_THRESHOLD
] = { .type
= NLA_U32
},
73 [NL80211_ATTR_IFTYPE
] = { .type
= NLA_U32
},
74 [NL80211_ATTR_IFINDEX
] = { .type
= NLA_U32
},
75 [NL80211_ATTR_IFNAME
] = { .type
= NLA_NUL_STRING
, .len
= IFNAMSIZ
-1 },
77 [NL80211_ATTR_MAC
] = { .type
= NLA_BINARY
, .len
= ETH_ALEN
},
78 [NL80211_ATTR_PREV_BSSID
] = { .type
= NLA_BINARY
, .len
= ETH_ALEN
},
80 [NL80211_ATTR_KEY
] = { .type
= NLA_NESTED
, },
81 [NL80211_ATTR_KEY_DATA
] = { .type
= NLA_BINARY
,
82 .len
= WLAN_MAX_KEY_LEN
},
83 [NL80211_ATTR_KEY_IDX
] = { .type
= NLA_U8
},
84 [NL80211_ATTR_KEY_CIPHER
] = { .type
= NLA_U32
},
85 [NL80211_ATTR_KEY_DEFAULT
] = { .type
= NLA_FLAG
},
86 [NL80211_ATTR_KEY_SEQ
] = { .type
= NLA_BINARY
, .len
= 8 },
88 [NL80211_ATTR_BEACON_INTERVAL
] = { .type
= NLA_U32
},
89 [NL80211_ATTR_DTIM_PERIOD
] = { .type
= NLA_U32
},
90 [NL80211_ATTR_BEACON_HEAD
] = { .type
= NLA_BINARY
,
91 .len
= IEEE80211_MAX_DATA_LEN
},
92 [NL80211_ATTR_BEACON_TAIL
] = { .type
= NLA_BINARY
,
93 .len
= IEEE80211_MAX_DATA_LEN
},
94 [NL80211_ATTR_STA_AID
] = { .type
= NLA_U16
},
95 [NL80211_ATTR_STA_FLAGS
] = { .type
= NLA_NESTED
},
96 [NL80211_ATTR_STA_LISTEN_INTERVAL
] = { .type
= NLA_U16
},
97 [NL80211_ATTR_STA_SUPPORTED_RATES
] = { .type
= NLA_BINARY
,
98 .len
= NL80211_MAX_SUPP_RATES
},
99 [NL80211_ATTR_STA_PLINK_ACTION
] = { .type
= NLA_U8
},
100 [NL80211_ATTR_STA_VLAN
] = { .type
= NLA_U32
},
101 [NL80211_ATTR_MNTR_FLAGS
] = { /* NLA_NESTED can't be empty */ },
102 [NL80211_ATTR_MESH_ID
] = { .type
= NLA_BINARY
,
103 .len
= IEEE80211_MAX_MESH_ID_LEN
},
104 [NL80211_ATTR_MPATH_NEXT_HOP
] = { .type
= NLA_U32
},
106 [NL80211_ATTR_REG_ALPHA2
] = { .type
= NLA_STRING
, .len
= 2 },
107 [NL80211_ATTR_REG_RULES
] = { .type
= NLA_NESTED
},
109 [NL80211_ATTR_BSS_CTS_PROT
] = { .type
= NLA_U8
},
110 [NL80211_ATTR_BSS_SHORT_PREAMBLE
] = { .type
= NLA_U8
},
111 [NL80211_ATTR_BSS_SHORT_SLOT_TIME
] = { .type
= NLA_U8
},
112 [NL80211_ATTR_BSS_BASIC_RATES
] = { .type
= NLA_BINARY
,
113 .len
= NL80211_MAX_SUPP_RATES
},
115 [NL80211_ATTR_MESH_PARAMS
] = { .type
= NLA_NESTED
},
117 [NL80211_ATTR_HT_CAPABILITY
] = { .type
= NLA_BINARY
,
118 .len
= NL80211_HT_CAPABILITY_LEN
},
120 [NL80211_ATTR_MGMT_SUBTYPE
] = { .type
= NLA_U8
},
121 [NL80211_ATTR_IE
] = { .type
= NLA_BINARY
,
122 .len
= IEEE80211_MAX_DATA_LEN
},
123 [NL80211_ATTR_SCAN_FREQUENCIES
] = { .type
= NLA_NESTED
},
124 [NL80211_ATTR_SCAN_SSIDS
] = { .type
= NLA_NESTED
},
126 [NL80211_ATTR_SSID
] = { .type
= NLA_BINARY
,
127 .len
= IEEE80211_MAX_SSID_LEN
},
128 [NL80211_ATTR_AUTH_TYPE
] = { .type
= NLA_U32
},
129 [NL80211_ATTR_REASON_CODE
] = { .type
= NLA_U16
},
130 [NL80211_ATTR_FREQ_FIXED
] = { .type
= NLA_FLAG
},
131 [NL80211_ATTR_TIMED_OUT
] = { .type
= NLA_FLAG
},
132 [NL80211_ATTR_USE_MFP
] = { .type
= NLA_U32
},
133 [NL80211_ATTR_STA_FLAGS2
] = {
134 .len
= sizeof(struct nl80211_sta_flag_update
),
136 [NL80211_ATTR_CONTROL_PORT
] = { .type
= NLA_FLAG
},
137 [NL80211_ATTR_PRIVACY
] = { .type
= NLA_FLAG
},
138 [NL80211_ATTR_CIPHER_SUITE_GROUP
] = { .type
= NLA_U32
},
139 [NL80211_ATTR_WPA_VERSIONS
] = { .type
= NLA_U32
},
140 [NL80211_ATTR_PID
] = { .type
= NLA_U32
},
141 [NL80211_ATTR_4ADDR
] = { .type
= NLA_U8
},
144 /* policy for the attributes */
145 static struct nla_policy
146 nl80211_key_policy
[NL80211_KEY_MAX
+ 1] __read_mostly
= {
147 [NL80211_KEY_DATA
] = { .type
= NLA_BINARY
, .len
= WLAN_MAX_KEY_LEN
},
148 [NL80211_KEY_IDX
] = { .type
= NLA_U8
},
149 [NL80211_KEY_CIPHER
] = { .type
= NLA_U32
},
150 [NL80211_KEY_SEQ
] = { .type
= NLA_BINARY
, .len
= 8 },
151 [NL80211_KEY_DEFAULT
] = { .type
= NLA_FLAG
},
152 [NL80211_KEY_DEFAULT_MGMT
] = { .type
= NLA_FLAG
},
155 /* ifidx get helper */
156 static int nl80211_get_ifidx(struct netlink_callback
*cb
)
160 res
= nlmsg_parse(cb
->nlh
, GENL_HDRLEN
+ nl80211_fam
.hdrsize
,
161 nl80211_fam
.attrbuf
, nl80211_fam
.maxattr
,
166 if (!nl80211_fam
.attrbuf
[NL80211_ATTR_IFINDEX
])
169 res
= nla_get_u32(nl80211_fam
.attrbuf
[NL80211_ATTR_IFINDEX
]);
176 static bool is_valid_ie_attr(const struct nlattr
*attr
)
184 pos
= nla_data(attr
);
205 /* message building helper */
206 static inline void *nl80211hdr_put(struct sk_buff
*skb
, u32 pid
, u32 seq
,
209 /* since there is no private header just add the generic one */
210 return genlmsg_put(skb
, pid
, seq
, &nl80211_fam
, flags
, cmd
);
213 static int nl80211_msg_put_channel(struct sk_buff
*msg
,
214 struct ieee80211_channel
*chan
)
216 NLA_PUT_U32(msg
, NL80211_FREQUENCY_ATTR_FREQ
,
219 if (chan
->flags
& IEEE80211_CHAN_DISABLED
)
220 NLA_PUT_FLAG(msg
, NL80211_FREQUENCY_ATTR_DISABLED
);
221 if (chan
->flags
& IEEE80211_CHAN_PASSIVE_SCAN
)
222 NLA_PUT_FLAG(msg
, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
);
223 if (chan
->flags
& IEEE80211_CHAN_NO_IBSS
)
224 NLA_PUT_FLAG(msg
, NL80211_FREQUENCY_ATTR_NO_IBSS
);
225 if (chan
->flags
& IEEE80211_CHAN_RADAR
)
226 NLA_PUT_FLAG(msg
, NL80211_FREQUENCY_ATTR_RADAR
);
228 NLA_PUT_U32(msg
, NL80211_FREQUENCY_ATTR_MAX_TX_POWER
,
229 DBM_TO_MBM(chan
->max_power
));
237 /* netlink command implementations */
245 static int nl80211_parse_key_new(struct nlattr
*key
, struct key_parse
*k
)
247 struct nlattr
*tb
[NL80211_KEY_MAX
+ 1];
248 int err
= nla_parse_nested(tb
, NL80211_KEY_MAX
, key
,
253 k
->def
= !!tb
[NL80211_KEY_DEFAULT
];
254 k
->defmgmt
= !!tb
[NL80211_KEY_DEFAULT_MGMT
];
256 if (tb
[NL80211_KEY_IDX
])
257 k
->idx
= nla_get_u8(tb
[NL80211_KEY_IDX
]);
259 if (tb
[NL80211_KEY_DATA
]) {
260 k
->p
.key
= nla_data(tb
[NL80211_KEY_DATA
]);
261 k
->p
.key_len
= nla_len(tb
[NL80211_KEY_DATA
]);
264 if (tb
[NL80211_KEY_SEQ
]) {
265 k
->p
.seq
= nla_data(tb
[NL80211_KEY_SEQ
]);
266 k
->p
.seq_len
= nla_len(tb
[NL80211_KEY_SEQ
]);
269 if (tb
[NL80211_KEY_CIPHER
])
270 k
->p
.cipher
= nla_get_u32(tb
[NL80211_KEY_CIPHER
]);
275 static int nl80211_parse_key_old(struct genl_info
*info
, struct key_parse
*k
)
277 if (info
->attrs
[NL80211_ATTR_KEY_DATA
]) {
278 k
->p
.key
= nla_data(info
->attrs
[NL80211_ATTR_KEY_DATA
]);
279 k
->p
.key_len
= nla_len(info
->attrs
[NL80211_ATTR_KEY_DATA
]);
282 if (info
->attrs
[NL80211_ATTR_KEY_SEQ
]) {
283 k
->p
.seq
= nla_data(info
->attrs
[NL80211_ATTR_KEY_SEQ
]);
284 k
->p
.seq_len
= nla_len(info
->attrs
[NL80211_ATTR_KEY_SEQ
]);
287 if (info
->attrs
[NL80211_ATTR_KEY_IDX
])
288 k
->idx
= nla_get_u8(info
->attrs
[NL80211_ATTR_KEY_IDX
]);
290 if (info
->attrs
[NL80211_ATTR_KEY_CIPHER
])
291 k
->p
.cipher
= nla_get_u32(info
->attrs
[NL80211_ATTR_KEY_CIPHER
]);
293 k
->def
= !!info
->attrs
[NL80211_ATTR_KEY_DEFAULT
];
294 k
->defmgmt
= !!info
->attrs
[NL80211_ATTR_KEY_DEFAULT_MGMT
];
299 static int nl80211_parse_key(struct genl_info
*info
, struct key_parse
*k
)
303 memset(k
, 0, sizeof(*k
));
306 if (info
->attrs
[NL80211_ATTR_KEY
])
307 err
= nl80211_parse_key_new(info
->attrs
[NL80211_ATTR_KEY
], k
);
309 err
= nl80211_parse_key_old(info
, k
);
314 if (k
->def
&& k
->defmgmt
)
319 if (k
->idx
< 4 || k
->idx
> 5)
322 if (k
->idx
< 0 || k
->idx
> 3)
325 if (k
->idx
< 0 || k
->idx
> 5)
333 static struct cfg80211_cached_keys
*
334 nl80211_parse_connkeys(struct cfg80211_registered_device
*rdev
,
337 struct key_parse parse
;
339 struct cfg80211_cached_keys
*result
;
340 int rem
, err
, def
= 0;
342 result
= kzalloc(sizeof(*result
), GFP_KERNEL
);
344 return ERR_PTR(-ENOMEM
);
347 result
->defmgmt
= -1;
349 nla_for_each_nested(key
, keys
, rem
) {
350 memset(&parse
, 0, sizeof(parse
));
353 err
= nl80211_parse_key_new(key
, &parse
);
359 if (parse
.idx
< 0 || parse
.idx
> 4)
365 result
->def
= parse
.idx
;
366 } else if (parse
.defmgmt
)
368 err
= cfg80211_validate_key_settings(rdev
, &parse
.p
,
372 result
->params
[parse
.idx
].cipher
= parse
.p
.cipher
;
373 result
->params
[parse
.idx
].key_len
= parse
.p
.key_len
;
374 result
->params
[parse
.idx
].key
= result
->data
[parse
.idx
];
375 memcpy(result
->data
[parse
.idx
], parse
.p
.key
, parse
.p
.key_len
);
384 static int nl80211_key_allowed(struct wireless_dev
*wdev
)
386 ASSERT_WDEV_LOCK(wdev
);
388 if (!netif_running(wdev
->netdev
))
391 switch (wdev
->iftype
) {
392 case NL80211_IFTYPE_AP
:
393 case NL80211_IFTYPE_AP_VLAN
:
395 case NL80211_IFTYPE_ADHOC
:
396 if (!wdev
->current_bss
)
399 case NL80211_IFTYPE_STATION
:
400 if (wdev
->sme_state
!= CFG80211_SME_CONNECTED
)
410 static int nl80211_send_wiphy(struct sk_buff
*msg
, u32 pid
, u32 seq
, int flags
,
411 struct cfg80211_registered_device
*dev
)
414 struct nlattr
*nl_bands
, *nl_band
;
415 struct nlattr
*nl_freqs
, *nl_freq
;
416 struct nlattr
*nl_rates
, *nl_rate
;
417 struct nlattr
*nl_modes
;
418 struct nlattr
*nl_cmds
;
419 enum ieee80211_band band
;
420 struct ieee80211_channel
*chan
;
421 struct ieee80211_rate
*rate
;
423 u16 ifmodes
= dev
->wiphy
.interface_modes
;
425 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
, NL80211_CMD_NEW_WIPHY
);
429 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, dev
->wiphy_idx
);
430 NLA_PUT_STRING(msg
, NL80211_ATTR_WIPHY_NAME
, wiphy_name(&dev
->wiphy
));
432 NLA_PUT_U32(msg
, NL80211_ATTR_GENERATION
,
433 cfg80211_rdev_list_generation
);
435 NLA_PUT_U8(msg
, NL80211_ATTR_WIPHY_RETRY_SHORT
,
436 dev
->wiphy
.retry_short
);
437 NLA_PUT_U8(msg
, NL80211_ATTR_WIPHY_RETRY_LONG
,
438 dev
->wiphy
.retry_long
);
439 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FRAG_THRESHOLD
,
440 dev
->wiphy
.frag_threshold
);
441 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_RTS_THRESHOLD
,
442 dev
->wiphy
.rts_threshold
);
444 NLA_PUT_U8(msg
, NL80211_ATTR_MAX_NUM_SCAN_SSIDS
,
445 dev
->wiphy
.max_scan_ssids
);
446 NLA_PUT_U16(msg
, NL80211_ATTR_MAX_SCAN_IE_LEN
,
447 dev
->wiphy
.max_scan_ie_len
);
449 NLA_PUT(msg
, NL80211_ATTR_CIPHER_SUITES
,
450 sizeof(u32
) * dev
->wiphy
.n_cipher_suites
,
451 dev
->wiphy
.cipher_suites
);
453 nl_modes
= nla_nest_start(msg
, NL80211_ATTR_SUPPORTED_IFTYPES
);
455 goto nla_put_failure
;
460 NLA_PUT_FLAG(msg
, i
);
465 nla_nest_end(msg
, nl_modes
);
467 nl_bands
= nla_nest_start(msg
, NL80211_ATTR_WIPHY_BANDS
);
469 goto nla_put_failure
;
471 for (band
= 0; band
< IEEE80211_NUM_BANDS
; band
++) {
472 if (!dev
->wiphy
.bands
[band
])
475 nl_band
= nla_nest_start(msg
, band
);
477 goto nla_put_failure
;
480 if (dev
->wiphy
.bands
[band
]->ht_cap
.ht_supported
) {
481 NLA_PUT(msg
, NL80211_BAND_ATTR_HT_MCS_SET
,
482 sizeof(dev
->wiphy
.bands
[band
]->ht_cap
.mcs
),
483 &dev
->wiphy
.bands
[band
]->ht_cap
.mcs
);
484 NLA_PUT_U16(msg
, NL80211_BAND_ATTR_HT_CAPA
,
485 dev
->wiphy
.bands
[band
]->ht_cap
.cap
);
486 NLA_PUT_U8(msg
, NL80211_BAND_ATTR_HT_AMPDU_FACTOR
,
487 dev
->wiphy
.bands
[band
]->ht_cap
.ampdu_factor
);
488 NLA_PUT_U8(msg
, NL80211_BAND_ATTR_HT_AMPDU_DENSITY
,
489 dev
->wiphy
.bands
[band
]->ht_cap
.ampdu_density
);
492 /* add frequencies */
493 nl_freqs
= nla_nest_start(msg
, NL80211_BAND_ATTR_FREQS
);
495 goto nla_put_failure
;
497 for (i
= 0; i
< dev
->wiphy
.bands
[band
]->n_channels
; i
++) {
498 nl_freq
= nla_nest_start(msg
, i
);
500 goto nla_put_failure
;
502 chan
= &dev
->wiphy
.bands
[band
]->channels
[i
];
504 if (nl80211_msg_put_channel(msg
, chan
))
505 goto nla_put_failure
;
507 nla_nest_end(msg
, nl_freq
);
510 nla_nest_end(msg
, nl_freqs
);
513 nl_rates
= nla_nest_start(msg
, NL80211_BAND_ATTR_RATES
);
515 goto nla_put_failure
;
517 for (i
= 0; i
< dev
->wiphy
.bands
[band
]->n_bitrates
; i
++) {
518 nl_rate
= nla_nest_start(msg
, i
);
520 goto nla_put_failure
;
522 rate
= &dev
->wiphy
.bands
[band
]->bitrates
[i
];
523 NLA_PUT_U32(msg
, NL80211_BITRATE_ATTR_RATE
,
525 if (rate
->flags
& IEEE80211_RATE_SHORT_PREAMBLE
)
527 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE
);
529 nla_nest_end(msg
, nl_rate
);
532 nla_nest_end(msg
, nl_rates
);
534 nla_nest_end(msg
, nl_band
);
536 nla_nest_end(msg
, nl_bands
);
538 nl_cmds
= nla_nest_start(msg
, NL80211_ATTR_SUPPORTED_COMMANDS
);
540 goto nla_put_failure
;
545 if (dev->ops->op) { \
547 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
551 CMD(add_virtual_intf
, NEW_INTERFACE
);
552 CMD(change_virtual_intf
, SET_INTERFACE
);
553 CMD(add_key
, NEW_KEY
);
554 CMD(add_beacon
, NEW_BEACON
);
555 CMD(add_station
, NEW_STATION
);
556 CMD(add_mpath
, NEW_MPATH
);
557 CMD(set_mesh_params
, SET_MESH_PARAMS
);
558 CMD(change_bss
, SET_BSS
);
559 CMD(auth
, AUTHENTICATE
);
560 CMD(assoc
, ASSOCIATE
);
561 CMD(deauth
, DEAUTHENTICATE
);
562 CMD(disassoc
, DISASSOCIATE
);
563 CMD(join_ibss
, JOIN_IBSS
);
564 if (dev
->wiphy
.flags
& WIPHY_FLAG_NETNS_OK
) {
566 NLA_PUT_U32(msg
, i
, NL80211_CMD_SET_WIPHY_NETNS
);
571 if (dev
->ops
->connect
|| dev
->ops
->auth
) {
573 NLA_PUT_U32(msg
, i
, NL80211_CMD_CONNECT
);
576 if (dev
->ops
->disconnect
|| dev
->ops
->deauth
) {
578 NLA_PUT_U32(msg
, i
, NL80211_CMD_DISCONNECT
);
581 nla_nest_end(msg
, nl_cmds
);
583 return genlmsg_end(msg
, hdr
);
586 genlmsg_cancel(msg
, hdr
);
590 static int nl80211_dump_wiphy(struct sk_buff
*skb
, struct netlink_callback
*cb
)
593 int start
= cb
->args
[0];
594 struct cfg80211_registered_device
*dev
;
596 mutex_lock(&cfg80211_mutex
);
597 list_for_each_entry(dev
, &cfg80211_rdev_list
, list
) {
598 if (!net_eq(wiphy_net(&dev
->wiphy
), sock_net(skb
->sk
)))
602 if (nl80211_send_wiphy(skb
, NETLINK_CB(cb
->skb
).pid
,
603 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
609 mutex_unlock(&cfg80211_mutex
);
616 static int nl80211_get_wiphy(struct sk_buff
*skb
, struct genl_info
*info
)
619 struct cfg80211_registered_device
*dev
;
621 dev
= cfg80211_get_dev_from_info(info
);
625 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
629 if (nl80211_send_wiphy(msg
, info
->snd_pid
, info
->snd_seq
, 0, dev
) < 0)
632 cfg80211_unlock_rdev(dev
);
634 return genlmsg_reply(msg
, info
);
639 cfg80211_unlock_rdev(dev
);
643 static const struct nla_policy txq_params_policy
[NL80211_TXQ_ATTR_MAX
+ 1] = {
644 [NL80211_TXQ_ATTR_QUEUE
] = { .type
= NLA_U8
},
645 [NL80211_TXQ_ATTR_TXOP
] = { .type
= NLA_U16
},
646 [NL80211_TXQ_ATTR_CWMIN
] = { .type
= NLA_U16
},
647 [NL80211_TXQ_ATTR_CWMAX
] = { .type
= NLA_U16
},
648 [NL80211_TXQ_ATTR_AIFS
] = { .type
= NLA_U8
},
651 static int parse_txq_params(struct nlattr
*tb
[],
652 struct ieee80211_txq_params
*txq_params
)
654 if (!tb
[NL80211_TXQ_ATTR_QUEUE
] || !tb
[NL80211_TXQ_ATTR_TXOP
] ||
655 !tb
[NL80211_TXQ_ATTR_CWMIN
] || !tb
[NL80211_TXQ_ATTR_CWMAX
] ||
656 !tb
[NL80211_TXQ_ATTR_AIFS
])
659 txq_params
->queue
= nla_get_u8(tb
[NL80211_TXQ_ATTR_QUEUE
]);
660 txq_params
->txop
= nla_get_u16(tb
[NL80211_TXQ_ATTR_TXOP
]);
661 txq_params
->cwmin
= nla_get_u16(tb
[NL80211_TXQ_ATTR_CWMIN
]);
662 txq_params
->cwmax
= nla_get_u16(tb
[NL80211_TXQ_ATTR_CWMAX
]);
663 txq_params
->aifs
= nla_get_u8(tb
[NL80211_TXQ_ATTR_AIFS
]);
668 static int nl80211_set_wiphy(struct sk_buff
*skb
, struct genl_info
*info
)
670 struct cfg80211_registered_device
*rdev
;
671 int result
= 0, rem_txq_params
= 0;
672 struct nlattr
*nl_txq_params
;
674 u8 retry_short
= 0, retry_long
= 0;
675 u32 frag_threshold
= 0, rts_threshold
= 0;
679 mutex_lock(&cfg80211_mutex
);
681 rdev
= __cfg80211_rdev_from_info(info
);
683 mutex_unlock(&cfg80211_mutex
);
684 result
= PTR_ERR(rdev
);
688 mutex_lock(&rdev
->mtx
);
690 if (info
->attrs
[NL80211_ATTR_WIPHY_NAME
])
691 result
= cfg80211_dev_rename(
692 rdev
, nla_data(info
->attrs
[NL80211_ATTR_WIPHY_NAME
]));
694 mutex_unlock(&cfg80211_mutex
);
699 if (info
->attrs
[NL80211_ATTR_WIPHY_TXQ_PARAMS
]) {
700 struct ieee80211_txq_params txq_params
;
701 struct nlattr
*tb
[NL80211_TXQ_ATTR_MAX
+ 1];
703 if (!rdev
->ops
->set_txq_params
) {
704 result
= -EOPNOTSUPP
;
708 nla_for_each_nested(nl_txq_params
,
709 info
->attrs
[NL80211_ATTR_WIPHY_TXQ_PARAMS
],
711 nla_parse(tb
, NL80211_TXQ_ATTR_MAX
,
712 nla_data(nl_txq_params
),
713 nla_len(nl_txq_params
),
715 result
= parse_txq_params(tb
, &txq_params
);
719 result
= rdev
->ops
->set_txq_params(&rdev
->wiphy
,
726 if (info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]) {
727 enum nl80211_channel_type channel_type
= NL80211_CHAN_NO_HT
;
732 if (info
->attrs
[NL80211_ATTR_WIPHY_CHANNEL_TYPE
]) {
733 channel_type
= nla_get_u32(info
->attrs
[
734 NL80211_ATTR_WIPHY_CHANNEL_TYPE
]);
735 if (channel_type
!= NL80211_CHAN_NO_HT
&&
736 channel_type
!= NL80211_CHAN_HT20
&&
737 channel_type
!= NL80211_CHAN_HT40PLUS
&&
738 channel_type
!= NL80211_CHAN_HT40MINUS
)
742 freq
= nla_get_u32(info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]);
744 mutex_lock(&rdev
->devlist_mtx
);
745 result
= rdev_set_freq(rdev
, NULL
, freq
, channel_type
);
746 mutex_unlock(&rdev
->devlist_mtx
);
753 if (info
->attrs
[NL80211_ATTR_WIPHY_RETRY_SHORT
]) {
754 retry_short
= nla_get_u8(
755 info
->attrs
[NL80211_ATTR_WIPHY_RETRY_SHORT
]);
756 if (retry_short
== 0) {
760 changed
|= WIPHY_PARAM_RETRY_SHORT
;
763 if (info
->attrs
[NL80211_ATTR_WIPHY_RETRY_LONG
]) {
764 retry_long
= nla_get_u8(
765 info
->attrs
[NL80211_ATTR_WIPHY_RETRY_LONG
]);
766 if (retry_long
== 0) {
770 changed
|= WIPHY_PARAM_RETRY_LONG
;
773 if (info
->attrs
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD
]) {
774 frag_threshold
= nla_get_u32(
775 info
->attrs
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD
]);
776 if (frag_threshold
< 256) {
780 if (frag_threshold
!= (u32
) -1) {
782 * Fragments (apart from the last one) are required to
783 * have even length. Make the fragmentation code
784 * simpler by stripping LSB should someone try to use
785 * odd threshold value.
787 frag_threshold
&= ~0x1;
789 changed
|= WIPHY_PARAM_FRAG_THRESHOLD
;
792 if (info
->attrs
[NL80211_ATTR_WIPHY_RTS_THRESHOLD
]) {
793 rts_threshold
= nla_get_u32(
794 info
->attrs
[NL80211_ATTR_WIPHY_RTS_THRESHOLD
]);
795 changed
|= WIPHY_PARAM_RTS_THRESHOLD
;
799 u8 old_retry_short
, old_retry_long
;
800 u32 old_frag_threshold
, old_rts_threshold
;
802 if (!rdev
->ops
->set_wiphy_params
) {
803 result
= -EOPNOTSUPP
;
807 old_retry_short
= rdev
->wiphy
.retry_short
;
808 old_retry_long
= rdev
->wiphy
.retry_long
;
809 old_frag_threshold
= rdev
->wiphy
.frag_threshold
;
810 old_rts_threshold
= rdev
->wiphy
.rts_threshold
;
812 if (changed
& WIPHY_PARAM_RETRY_SHORT
)
813 rdev
->wiphy
.retry_short
= retry_short
;
814 if (changed
& WIPHY_PARAM_RETRY_LONG
)
815 rdev
->wiphy
.retry_long
= retry_long
;
816 if (changed
& WIPHY_PARAM_FRAG_THRESHOLD
)
817 rdev
->wiphy
.frag_threshold
= frag_threshold
;
818 if (changed
& WIPHY_PARAM_RTS_THRESHOLD
)
819 rdev
->wiphy
.rts_threshold
= rts_threshold
;
821 result
= rdev
->ops
->set_wiphy_params(&rdev
->wiphy
, changed
);
823 rdev
->wiphy
.retry_short
= old_retry_short
;
824 rdev
->wiphy
.retry_long
= old_retry_long
;
825 rdev
->wiphy
.frag_threshold
= old_frag_threshold
;
826 rdev
->wiphy
.rts_threshold
= old_rts_threshold
;
831 mutex_unlock(&rdev
->mtx
);
838 static int nl80211_send_iface(struct sk_buff
*msg
, u32 pid
, u32 seq
, int flags
,
839 struct cfg80211_registered_device
*rdev
,
840 struct net_device
*dev
)
844 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
, NL80211_CMD_NEW_INTERFACE
);
848 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, dev
->ifindex
);
849 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
850 NLA_PUT_STRING(msg
, NL80211_ATTR_IFNAME
, dev
->name
);
851 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, dev
->ieee80211_ptr
->iftype
);
853 NLA_PUT_U32(msg
, NL80211_ATTR_GENERATION
,
854 rdev
->devlist_generation
^
855 (cfg80211_rdev_list_generation
<< 2));
857 return genlmsg_end(msg
, hdr
);
860 genlmsg_cancel(msg
, hdr
);
864 static int nl80211_dump_interface(struct sk_buff
*skb
, struct netlink_callback
*cb
)
868 int wp_start
= cb
->args
[0];
869 int if_start
= cb
->args
[1];
870 struct cfg80211_registered_device
*rdev
;
871 struct wireless_dev
*wdev
;
873 mutex_lock(&cfg80211_mutex
);
874 list_for_each_entry(rdev
, &cfg80211_rdev_list
, list
) {
875 if (!net_eq(wiphy_net(&rdev
->wiphy
), sock_net(skb
->sk
)))
877 if (wp_idx
< wp_start
) {
883 mutex_lock(&rdev
->devlist_mtx
);
884 list_for_each_entry(wdev
, &rdev
->netdev_list
, list
) {
885 if (if_idx
< if_start
) {
889 if (nl80211_send_iface(skb
, NETLINK_CB(cb
->skb
).pid
,
890 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
891 rdev
, wdev
->netdev
) < 0) {
892 mutex_unlock(&rdev
->devlist_mtx
);
897 mutex_unlock(&rdev
->devlist_mtx
);
902 mutex_unlock(&cfg80211_mutex
);
904 cb
->args
[0] = wp_idx
;
905 cb
->args
[1] = if_idx
;
910 static int nl80211_get_interface(struct sk_buff
*skb
, struct genl_info
*info
)
913 struct cfg80211_registered_device
*dev
;
914 struct net_device
*netdev
;
917 err
= get_rdev_dev_by_info_ifindex(info
, &dev
, &netdev
);
921 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
925 if (nl80211_send_iface(msg
, info
->snd_pid
, info
->snd_seq
, 0,
930 cfg80211_unlock_rdev(dev
);
932 return genlmsg_reply(msg
, info
);
938 cfg80211_unlock_rdev(dev
);
942 static const struct nla_policy mntr_flags_policy
[NL80211_MNTR_FLAG_MAX
+ 1] = {
943 [NL80211_MNTR_FLAG_FCSFAIL
] = { .type
= NLA_FLAG
},
944 [NL80211_MNTR_FLAG_PLCPFAIL
] = { .type
= NLA_FLAG
},
945 [NL80211_MNTR_FLAG_CONTROL
] = { .type
= NLA_FLAG
},
946 [NL80211_MNTR_FLAG_OTHER_BSS
] = { .type
= NLA_FLAG
},
947 [NL80211_MNTR_FLAG_COOK_FRAMES
] = { .type
= NLA_FLAG
},
950 static int parse_monitor_flags(struct nlattr
*nla
, u32
*mntrflags
)
952 struct nlattr
*flags
[NL80211_MNTR_FLAG_MAX
+ 1];
960 if (nla_parse_nested(flags
, NL80211_MNTR_FLAG_MAX
,
961 nla
, mntr_flags_policy
))
964 for (flag
= 1; flag
<= NL80211_MNTR_FLAG_MAX
; flag
++)
966 *mntrflags
|= (1<<flag
);
971 static int nl80211_valid_4addr(struct cfg80211_registered_device
*rdev
,
972 u8 use_4addr
, enum nl80211_iftype iftype
)
978 case NL80211_IFTYPE_AP_VLAN
:
979 if (rdev
->wiphy
.flags
& WIPHY_FLAG_4ADDR_AP
)
982 case NL80211_IFTYPE_STATION
:
983 if (rdev
->wiphy
.flags
& WIPHY_FLAG_4ADDR_STATION
)
993 static int nl80211_set_interface(struct sk_buff
*skb
, struct genl_info
*info
)
995 struct cfg80211_registered_device
*rdev
;
996 struct vif_params params
;
998 enum nl80211_iftype otype
, ntype
;
999 struct net_device
*dev
;
1000 u32 _flags
, *flags
= NULL
;
1001 bool change
= false;
1003 memset(¶ms
, 0, sizeof(params
));
1007 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1011 otype
= ntype
= dev
->ieee80211_ptr
->iftype
;
1013 if (info
->attrs
[NL80211_ATTR_IFTYPE
]) {
1014 ntype
= nla_get_u32(info
->attrs
[NL80211_ATTR_IFTYPE
]);
1017 if (ntype
> NL80211_IFTYPE_MAX
) {
1023 if (info
->attrs
[NL80211_ATTR_MESH_ID
]) {
1024 if (ntype
!= NL80211_IFTYPE_MESH_POINT
) {
1028 params
.mesh_id
= nla_data(info
->attrs
[NL80211_ATTR_MESH_ID
]);
1029 params
.mesh_id_len
= nla_len(info
->attrs
[NL80211_ATTR_MESH_ID
]);
1033 if (info
->attrs
[NL80211_ATTR_4ADDR
]) {
1034 params
.use_4addr
= !!nla_get_u8(info
->attrs
[NL80211_ATTR_4ADDR
]);
1036 err
= nl80211_valid_4addr(rdev
, params
.use_4addr
, ntype
);
1040 params
.use_4addr
= -1;
1043 if (info
->attrs
[NL80211_ATTR_MNTR_FLAGS
]) {
1044 if (ntype
!= NL80211_IFTYPE_MONITOR
) {
1048 err
= parse_monitor_flags(info
->attrs
[NL80211_ATTR_MNTR_FLAGS
],
1058 err
= cfg80211_change_iface(rdev
, dev
, ntype
, flags
, ¶ms
);
1062 if (!err
&& params
.use_4addr
!= -1)
1063 dev
->ieee80211_ptr
->use_4addr
= params
.use_4addr
;
1067 cfg80211_unlock_rdev(rdev
);
1073 static int nl80211_new_interface(struct sk_buff
*skb
, struct genl_info
*info
)
1075 struct cfg80211_registered_device
*rdev
;
1076 struct vif_params params
;
1078 enum nl80211_iftype type
= NL80211_IFTYPE_UNSPECIFIED
;
1081 memset(¶ms
, 0, sizeof(params
));
1083 if (!info
->attrs
[NL80211_ATTR_IFNAME
])
1086 if (info
->attrs
[NL80211_ATTR_IFTYPE
]) {
1087 type
= nla_get_u32(info
->attrs
[NL80211_ATTR_IFTYPE
]);
1088 if (type
> NL80211_IFTYPE_MAX
)
1094 rdev
= cfg80211_get_dev_from_info(info
);
1096 err
= PTR_ERR(rdev
);
1100 if (!rdev
->ops
->add_virtual_intf
||
1101 !(rdev
->wiphy
.interface_modes
& (1 << type
))) {
1106 if (type
== NL80211_IFTYPE_MESH_POINT
&&
1107 info
->attrs
[NL80211_ATTR_MESH_ID
]) {
1108 params
.mesh_id
= nla_data(info
->attrs
[NL80211_ATTR_MESH_ID
]);
1109 params
.mesh_id_len
= nla_len(info
->attrs
[NL80211_ATTR_MESH_ID
]);
1112 if (info
->attrs
[NL80211_ATTR_4ADDR
]) {
1113 params
.use_4addr
= !!nla_get_u8(info
->attrs
[NL80211_ATTR_4ADDR
]);
1114 err
= nl80211_valid_4addr(rdev
, params
.use_4addr
, type
);
1119 err
= parse_monitor_flags(type
== NL80211_IFTYPE_MONITOR
?
1120 info
->attrs
[NL80211_ATTR_MNTR_FLAGS
] : NULL
,
1122 err
= rdev
->ops
->add_virtual_intf(&rdev
->wiphy
,
1123 nla_data(info
->attrs
[NL80211_ATTR_IFNAME
]),
1124 type
, err
? NULL
: &flags
, ¶ms
);
1127 cfg80211_unlock_rdev(rdev
);
1133 static int nl80211_del_interface(struct sk_buff
*skb
, struct genl_info
*info
)
1135 struct cfg80211_registered_device
*rdev
;
1137 struct net_device
*dev
;
1141 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1145 if (!rdev
->ops
->del_virtual_intf
) {
1150 err
= rdev
->ops
->del_virtual_intf(&rdev
->wiphy
, dev
);
1153 cfg80211_unlock_rdev(rdev
);
1160 struct get_key_cookie
{
1161 struct sk_buff
*msg
;
1166 static void get_key_callback(void *c
, struct key_params
*params
)
1169 struct get_key_cookie
*cookie
= c
;
1172 NLA_PUT(cookie
->msg
, NL80211_ATTR_KEY_DATA
,
1173 params
->key_len
, params
->key
);
1176 NLA_PUT(cookie
->msg
, NL80211_ATTR_KEY_SEQ
,
1177 params
->seq_len
, params
->seq
);
1180 NLA_PUT_U32(cookie
->msg
, NL80211_ATTR_KEY_CIPHER
,
1183 key
= nla_nest_start(cookie
->msg
, NL80211_ATTR_KEY
);
1185 goto nla_put_failure
;
1188 NLA_PUT(cookie
->msg
, NL80211_KEY_DATA
,
1189 params
->key_len
, params
->key
);
1192 NLA_PUT(cookie
->msg
, NL80211_KEY_SEQ
,
1193 params
->seq_len
, params
->seq
);
1196 NLA_PUT_U32(cookie
->msg
, NL80211_KEY_CIPHER
,
1199 NLA_PUT_U8(cookie
->msg
, NL80211_ATTR_KEY_IDX
, cookie
->idx
);
1201 nla_nest_end(cookie
->msg
, key
);
1208 static int nl80211_get_key(struct sk_buff
*skb
, struct genl_info
*info
)
1210 struct cfg80211_registered_device
*rdev
;
1212 struct net_device
*dev
;
1214 u8
*mac_addr
= NULL
;
1215 struct get_key_cookie cookie
= {
1219 struct sk_buff
*msg
;
1221 if (info
->attrs
[NL80211_ATTR_KEY_IDX
])
1222 key_idx
= nla_get_u8(info
->attrs
[NL80211_ATTR_KEY_IDX
]);
1227 if (info
->attrs
[NL80211_ATTR_MAC
])
1228 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
1232 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1236 if (!rdev
->ops
->get_key
) {
1241 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
1247 hdr
= nl80211hdr_put(msg
, info
->snd_pid
, info
->snd_seq
, 0,
1248 NL80211_CMD_NEW_KEY
);
1256 cookie
.idx
= key_idx
;
1258 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, dev
->ifindex
);
1259 NLA_PUT_U8(msg
, NL80211_ATTR_KEY_IDX
, key_idx
);
1261 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, mac_addr
);
1263 err
= rdev
->ops
->get_key(&rdev
->wiphy
, dev
, key_idx
, mac_addr
,
1264 &cookie
, get_key_callback
);
1270 goto nla_put_failure
;
1272 genlmsg_end(msg
, hdr
);
1273 err
= genlmsg_reply(msg
, info
);
1281 cfg80211_unlock_rdev(rdev
);
1289 static int nl80211_set_key(struct sk_buff
*skb
, struct genl_info
*info
)
1291 struct cfg80211_registered_device
*rdev
;
1292 struct key_parse key
;
1294 struct net_device
*dev
;
1295 int (*func
)(struct wiphy
*wiphy
, struct net_device
*netdev
,
1298 err
= nl80211_parse_key(info
, &key
);
1305 /* only support setting default key */
1306 if (!key
.def
&& !key
.defmgmt
)
1311 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1316 func
= rdev
->ops
->set_default_key
;
1318 func
= rdev
->ops
->set_default_mgmt_key
;
1325 wdev_lock(dev
->ieee80211_ptr
);
1326 err
= nl80211_key_allowed(dev
->ieee80211_ptr
);
1328 err
= func(&rdev
->wiphy
, dev
, key
.idx
);
1330 #ifdef CONFIG_CFG80211_WEXT
1332 if (func
== rdev
->ops
->set_default_key
)
1333 dev
->ieee80211_ptr
->wext
.default_key
= key
.idx
;
1335 dev
->ieee80211_ptr
->wext
.default_mgmt_key
= key
.idx
;
1338 wdev_unlock(dev
->ieee80211_ptr
);
1341 cfg80211_unlock_rdev(rdev
);
1350 static int nl80211_new_key(struct sk_buff
*skb
, struct genl_info
*info
)
1352 struct cfg80211_registered_device
*rdev
;
1354 struct net_device
*dev
;
1355 struct key_parse key
;
1356 u8
*mac_addr
= NULL
;
1358 err
= nl80211_parse_key(info
, &key
);
1365 if (info
->attrs
[NL80211_ATTR_MAC
])
1366 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
1370 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1374 if (!rdev
->ops
->add_key
) {
1379 if (cfg80211_validate_key_settings(rdev
, &key
.p
, key
.idx
, mac_addr
)) {
1384 wdev_lock(dev
->ieee80211_ptr
);
1385 err
= nl80211_key_allowed(dev
->ieee80211_ptr
);
1387 err
= rdev
->ops
->add_key(&rdev
->wiphy
, dev
, key
.idx
,
1389 wdev_unlock(dev
->ieee80211_ptr
);
1392 cfg80211_unlock_rdev(rdev
);
1400 static int nl80211_del_key(struct sk_buff
*skb
, struct genl_info
*info
)
1402 struct cfg80211_registered_device
*rdev
;
1404 struct net_device
*dev
;
1405 u8
*mac_addr
= NULL
;
1406 struct key_parse key
;
1408 err
= nl80211_parse_key(info
, &key
);
1412 if (info
->attrs
[NL80211_ATTR_MAC
])
1413 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
1417 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1421 if (!rdev
->ops
->del_key
) {
1426 wdev_lock(dev
->ieee80211_ptr
);
1427 err
= nl80211_key_allowed(dev
->ieee80211_ptr
);
1429 err
= rdev
->ops
->del_key(&rdev
->wiphy
, dev
, key
.idx
, mac_addr
);
1431 #ifdef CONFIG_CFG80211_WEXT
1433 if (key
.idx
== dev
->ieee80211_ptr
->wext
.default_key
)
1434 dev
->ieee80211_ptr
->wext
.default_key
= -1;
1435 else if (key
.idx
== dev
->ieee80211_ptr
->wext
.default_mgmt_key
)
1436 dev
->ieee80211_ptr
->wext
.default_mgmt_key
= -1;
1439 wdev_unlock(dev
->ieee80211_ptr
);
1442 cfg80211_unlock_rdev(rdev
);
1451 static int nl80211_addset_beacon(struct sk_buff
*skb
, struct genl_info
*info
)
1453 int (*call
)(struct wiphy
*wiphy
, struct net_device
*dev
,
1454 struct beacon_parameters
*info
);
1455 struct cfg80211_registered_device
*rdev
;
1457 struct net_device
*dev
;
1458 struct beacon_parameters params
;
1461 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_BEACON_TAIL
]))
1466 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1470 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_AP
) {
1475 switch (info
->genlhdr
->cmd
) {
1476 case NL80211_CMD_NEW_BEACON
:
1477 /* these are required for NEW_BEACON */
1478 if (!info
->attrs
[NL80211_ATTR_BEACON_INTERVAL
] ||
1479 !info
->attrs
[NL80211_ATTR_DTIM_PERIOD
] ||
1480 !info
->attrs
[NL80211_ATTR_BEACON_HEAD
]) {
1485 call
= rdev
->ops
->add_beacon
;
1487 case NL80211_CMD_SET_BEACON
:
1488 call
= rdev
->ops
->set_beacon
;
1501 memset(¶ms
, 0, sizeof(params
));
1503 if (info
->attrs
[NL80211_ATTR_BEACON_INTERVAL
]) {
1505 nla_get_u32(info
->attrs
[NL80211_ATTR_BEACON_INTERVAL
]);
1509 if (info
->attrs
[NL80211_ATTR_DTIM_PERIOD
]) {
1510 params
.dtim_period
=
1511 nla_get_u32(info
->attrs
[NL80211_ATTR_DTIM_PERIOD
]);
1515 if (info
->attrs
[NL80211_ATTR_BEACON_HEAD
]) {
1516 params
.head
= nla_data(info
->attrs
[NL80211_ATTR_BEACON_HEAD
]);
1518 nla_len(info
->attrs
[NL80211_ATTR_BEACON_HEAD
]);
1522 if (info
->attrs
[NL80211_ATTR_BEACON_TAIL
]) {
1523 params
.tail
= nla_data(info
->attrs
[NL80211_ATTR_BEACON_TAIL
]);
1525 nla_len(info
->attrs
[NL80211_ATTR_BEACON_TAIL
]);
1534 err
= call(&rdev
->wiphy
, dev
, ¶ms
);
1537 cfg80211_unlock_rdev(rdev
);
1545 static int nl80211_del_beacon(struct sk_buff
*skb
, struct genl_info
*info
)
1547 struct cfg80211_registered_device
*rdev
;
1549 struct net_device
*dev
;
1553 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1557 if (!rdev
->ops
->del_beacon
) {
1562 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_AP
) {
1566 err
= rdev
->ops
->del_beacon(&rdev
->wiphy
, dev
);
1569 cfg80211_unlock_rdev(rdev
);
1577 static const struct nla_policy sta_flags_policy
[NL80211_STA_FLAG_MAX
+ 1] = {
1578 [NL80211_STA_FLAG_AUTHORIZED
] = { .type
= NLA_FLAG
},
1579 [NL80211_STA_FLAG_SHORT_PREAMBLE
] = { .type
= NLA_FLAG
},
1580 [NL80211_STA_FLAG_WME
] = { .type
= NLA_FLAG
},
1581 [NL80211_STA_FLAG_MFP
] = { .type
= NLA_FLAG
},
1584 static int parse_station_flags(struct genl_info
*info
,
1585 struct station_parameters
*params
)
1587 struct nlattr
*flags
[NL80211_STA_FLAG_MAX
+ 1];
1592 * Try parsing the new attribute first so userspace
1593 * can specify both for older kernels.
1595 nla
= info
->attrs
[NL80211_ATTR_STA_FLAGS2
];
1597 struct nl80211_sta_flag_update
*sta_flags
;
1599 sta_flags
= nla_data(nla
);
1600 params
->sta_flags_mask
= sta_flags
->mask
;
1601 params
->sta_flags_set
= sta_flags
->set
;
1602 if ((params
->sta_flags_mask
|
1603 params
->sta_flags_set
) & BIT(__NL80211_STA_FLAG_INVALID
))
1608 /* if present, parse the old attribute */
1610 nla
= info
->attrs
[NL80211_ATTR_STA_FLAGS
];
1614 if (nla_parse_nested(flags
, NL80211_STA_FLAG_MAX
,
1615 nla
, sta_flags_policy
))
1618 params
->sta_flags_mask
= (1 << __NL80211_STA_FLAG_AFTER_LAST
) - 1;
1619 params
->sta_flags_mask
&= ~1;
1621 for (flag
= 1; flag
<= NL80211_STA_FLAG_MAX
; flag
++)
1623 params
->sta_flags_set
|= (1<<flag
);
1628 static u16
nl80211_calculate_bitrate(struct rate_info
*rate
)
1630 int modulation
, streams
, bitrate
;
1632 if (!(rate
->flags
& RATE_INFO_FLAGS_MCS
))
1633 return rate
->legacy
;
1635 /* the formula below does only work for MCS values smaller than 32 */
1636 if (rate
->mcs
>= 32)
1639 modulation
= rate
->mcs
& 7;
1640 streams
= (rate
->mcs
>> 3) + 1;
1642 bitrate
= (rate
->flags
& RATE_INFO_FLAGS_40_MHZ_WIDTH
) ?
1646 bitrate
*= (modulation
+ 1);
1647 else if (modulation
== 4)
1648 bitrate
*= (modulation
+ 2);
1650 bitrate
*= (modulation
+ 3);
1654 if (rate
->flags
& RATE_INFO_FLAGS_SHORT_GI
)
1655 bitrate
= (bitrate
/ 9) * 10;
1657 /* do NOT round down here */
1658 return (bitrate
+ 50000) / 100000;
1661 static int nl80211_send_station(struct sk_buff
*msg
, u32 pid
, u32 seq
,
1662 int flags
, struct net_device
*dev
,
1663 u8
*mac_addr
, struct station_info
*sinfo
)
1666 struct nlattr
*sinfoattr
, *txrate
;
1669 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
, NL80211_CMD_NEW_STATION
);
1673 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, dev
->ifindex
);
1674 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, mac_addr
);
1676 NLA_PUT_U32(msg
, NL80211_ATTR_GENERATION
, sinfo
->generation
);
1678 sinfoattr
= nla_nest_start(msg
, NL80211_ATTR_STA_INFO
);
1680 goto nla_put_failure
;
1681 if (sinfo
->filled
& STATION_INFO_INACTIVE_TIME
)
1682 NLA_PUT_U32(msg
, NL80211_STA_INFO_INACTIVE_TIME
,
1683 sinfo
->inactive_time
);
1684 if (sinfo
->filled
& STATION_INFO_RX_BYTES
)
1685 NLA_PUT_U32(msg
, NL80211_STA_INFO_RX_BYTES
,
1687 if (sinfo
->filled
& STATION_INFO_TX_BYTES
)
1688 NLA_PUT_U32(msg
, NL80211_STA_INFO_TX_BYTES
,
1690 if (sinfo
->filled
& STATION_INFO_LLID
)
1691 NLA_PUT_U16(msg
, NL80211_STA_INFO_LLID
,
1693 if (sinfo
->filled
& STATION_INFO_PLID
)
1694 NLA_PUT_U16(msg
, NL80211_STA_INFO_PLID
,
1696 if (sinfo
->filled
& STATION_INFO_PLINK_STATE
)
1697 NLA_PUT_U8(msg
, NL80211_STA_INFO_PLINK_STATE
,
1698 sinfo
->plink_state
);
1699 if (sinfo
->filled
& STATION_INFO_SIGNAL
)
1700 NLA_PUT_U8(msg
, NL80211_STA_INFO_SIGNAL
,
1702 if (sinfo
->filled
& STATION_INFO_TX_BITRATE
) {
1703 txrate
= nla_nest_start(msg
, NL80211_STA_INFO_TX_BITRATE
);
1705 goto nla_put_failure
;
1707 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1708 bitrate
= nl80211_calculate_bitrate(&sinfo
->txrate
);
1710 NLA_PUT_U16(msg
, NL80211_RATE_INFO_BITRATE
, bitrate
);
1712 if (sinfo
->txrate
.flags
& RATE_INFO_FLAGS_MCS
)
1713 NLA_PUT_U8(msg
, NL80211_RATE_INFO_MCS
,
1715 if (sinfo
->txrate
.flags
& RATE_INFO_FLAGS_40_MHZ_WIDTH
)
1716 NLA_PUT_FLAG(msg
, NL80211_RATE_INFO_40_MHZ_WIDTH
);
1717 if (sinfo
->txrate
.flags
& RATE_INFO_FLAGS_SHORT_GI
)
1718 NLA_PUT_FLAG(msg
, NL80211_RATE_INFO_SHORT_GI
);
1720 nla_nest_end(msg
, txrate
);
1722 if (sinfo
->filled
& STATION_INFO_RX_PACKETS
)
1723 NLA_PUT_U32(msg
, NL80211_STA_INFO_RX_PACKETS
,
1725 if (sinfo
->filled
& STATION_INFO_TX_PACKETS
)
1726 NLA_PUT_U32(msg
, NL80211_STA_INFO_TX_PACKETS
,
1728 nla_nest_end(msg
, sinfoattr
);
1730 return genlmsg_end(msg
, hdr
);
1733 genlmsg_cancel(msg
, hdr
);
1737 static int nl80211_dump_station(struct sk_buff
*skb
,
1738 struct netlink_callback
*cb
)
1740 struct station_info sinfo
;
1741 struct cfg80211_registered_device
*dev
;
1742 struct net_device
*netdev
;
1743 u8 mac_addr
[ETH_ALEN
];
1744 int ifidx
= cb
->args
[0];
1745 int sta_idx
= cb
->args
[1];
1749 ifidx
= nl80211_get_ifidx(cb
);
1755 netdev
= __dev_get_by_index(sock_net(skb
->sk
), ifidx
);
1761 dev
= cfg80211_get_dev_from_ifindex(sock_net(skb
->sk
), ifidx
);
1767 if (!dev
->ops
->dump_station
) {
1773 err
= dev
->ops
->dump_station(&dev
->wiphy
, netdev
, sta_idx
,
1780 if (nl80211_send_station(skb
,
1781 NETLINK_CB(cb
->skb
).pid
,
1782 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
1792 cb
->args
[1] = sta_idx
;
1795 cfg80211_unlock_rdev(dev
);
1802 static int nl80211_get_station(struct sk_buff
*skb
, struct genl_info
*info
)
1804 struct cfg80211_registered_device
*rdev
;
1806 struct net_device
*dev
;
1807 struct station_info sinfo
;
1808 struct sk_buff
*msg
;
1809 u8
*mac_addr
= NULL
;
1811 memset(&sinfo
, 0, sizeof(sinfo
));
1813 if (!info
->attrs
[NL80211_ATTR_MAC
])
1816 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
1820 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1824 if (!rdev
->ops
->get_station
) {
1829 err
= rdev
->ops
->get_station(&rdev
->wiphy
, dev
, mac_addr
, &sinfo
);
1833 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
1837 if (nl80211_send_station(msg
, info
->snd_pid
, info
->snd_seq
, 0,
1838 dev
, mac_addr
, &sinfo
) < 0)
1841 err
= genlmsg_reply(msg
, info
);
1847 cfg80211_unlock_rdev(rdev
);
1856 * Get vlan interface making sure it is running and on the right wiphy.
1858 static int get_vlan(struct genl_info
*info
,
1859 struct cfg80211_registered_device
*rdev
,
1860 struct net_device
**vlan
)
1862 struct nlattr
*vlanattr
= info
->attrs
[NL80211_ATTR_STA_VLAN
];
1866 *vlan
= dev_get_by_index(genl_info_net(info
),
1867 nla_get_u32(vlanattr
));
1870 if (!(*vlan
)->ieee80211_ptr
)
1872 if ((*vlan
)->ieee80211_ptr
->wiphy
!= &rdev
->wiphy
)
1874 if (!netif_running(*vlan
))
1880 static int nl80211_set_station(struct sk_buff
*skb
, struct genl_info
*info
)
1882 struct cfg80211_registered_device
*rdev
;
1884 struct net_device
*dev
;
1885 struct station_parameters params
;
1886 u8
*mac_addr
= NULL
;
1888 memset(¶ms
, 0, sizeof(params
));
1890 params
.listen_interval
= -1;
1892 if (info
->attrs
[NL80211_ATTR_STA_AID
])
1895 if (!info
->attrs
[NL80211_ATTR_MAC
])
1898 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
1900 if (info
->attrs
[NL80211_ATTR_STA_SUPPORTED_RATES
]) {
1901 params
.supported_rates
=
1902 nla_data(info
->attrs
[NL80211_ATTR_STA_SUPPORTED_RATES
]);
1903 params
.supported_rates_len
=
1904 nla_len(info
->attrs
[NL80211_ATTR_STA_SUPPORTED_RATES
]);
1907 if (info
->attrs
[NL80211_ATTR_STA_LISTEN_INTERVAL
])
1908 params
.listen_interval
=
1909 nla_get_u16(info
->attrs
[NL80211_ATTR_STA_LISTEN_INTERVAL
]);
1911 if (info
->attrs
[NL80211_ATTR_HT_CAPABILITY
])
1913 nla_data(info
->attrs
[NL80211_ATTR_HT_CAPABILITY
]);
1915 if (parse_station_flags(info
, ¶ms
))
1918 if (info
->attrs
[NL80211_ATTR_STA_PLINK_ACTION
])
1919 params
.plink_action
=
1920 nla_get_u8(info
->attrs
[NL80211_ATTR_STA_PLINK_ACTION
]);
1924 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
1928 err
= get_vlan(info
, rdev
, ¶ms
.vlan
);
1932 /* validate settings */
1935 switch (dev
->ieee80211_ptr
->iftype
) {
1936 case NL80211_IFTYPE_AP
:
1937 case NL80211_IFTYPE_AP_VLAN
:
1938 /* disallow mesh-specific things */
1939 if (params
.plink_action
)
1942 case NL80211_IFTYPE_STATION
:
1943 /* disallow everything but AUTHORIZED flag */
1944 if (params
.plink_action
)
1948 if (params
.supported_rates
)
1952 if (params
.listen_interval
>= 0)
1954 if (params
.sta_flags_mask
& ~BIT(NL80211_STA_FLAG_AUTHORIZED
))
1957 case NL80211_IFTYPE_MESH_POINT
:
1958 /* disallow things mesh doesn't support */
1963 if (params
.listen_interval
>= 0)
1965 if (params
.supported_rates
)
1967 if (params
.sta_flags_mask
)
1977 if (!rdev
->ops
->change_station
) {
1982 err
= rdev
->ops
->change_station(&rdev
->wiphy
, dev
, mac_addr
, ¶ms
);
1986 dev_put(params
.vlan
);
1987 cfg80211_unlock_rdev(rdev
);
1995 static int nl80211_new_station(struct sk_buff
*skb
, struct genl_info
*info
)
1997 struct cfg80211_registered_device
*rdev
;
1999 struct net_device
*dev
;
2000 struct station_parameters params
;
2001 u8
*mac_addr
= NULL
;
2003 memset(¶ms
, 0, sizeof(params
));
2005 if (!info
->attrs
[NL80211_ATTR_MAC
])
2008 if (!info
->attrs
[NL80211_ATTR_STA_LISTEN_INTERVAL
])
2011 if (!info
->attrs
[NL80211_ATTR_STA_SUPPORTED_RATES
])
2014 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
2015 params
.supported_rates
=
2016 nla_data(info
->attrs
[NL80211_ATTR_STA_SUPPORTED_RATES
]);
2017 params
.supported_rates_len
=
2018 nla_len(info
->attrs
[NL80211_ATTR_STA_SUPPORTED_RATES
]);
2019 params
.listen_interval
=
2020 nla_get_u16(info
->attrs
[NL80211_ATTR_STA_LISTEN_INTERVAL
]);
2022 if (info
->attrs
[NL80211_ATTR_STA_AID
]) {
2023 params
.aid
= nla_get_u16(info
->attrs
[NL80211_ATTR_STA_AID
]);
2024 if (!params
.aid
|| params
.aid
> IEEE80211_MAX_AID
)
2028 if (info
->attrs
[NL80211_ATTR_HT_CAPABILITY
])
2030 nla_data(info
->attrs
[NL80211_ATTR_HT_CAPABILITY
]);
2032 if (parse_station_flags(info
, ¶ms
))
2037 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2041 err
= get_vlan(info
, rdev
, ¶ms
.vlan
);
2045 /* validate settings */
2048 switch (dev
->ieee80211_ptr
->iftype
) {
2049 case NL80211_IFTYPE_AP
:
2050 case NL80211_IFTYPE_AP_VLAN
:
2051 /* all ok but must have AID */
2055 case NL80211_IFTYPE_MESH_POINT
:
2056 /* disallow things mesh doesn't support */
2063 if (params
.listen_interval
>= 0)
2065 if (params
.supported_rates
)
2067 if (params
.sta_flags_mask
)
2077 if (!rdev
->ops
->add_station
) {
2082 if (!netif_running(dev
)) {
2087 err
= rdev
->ops
->add_station(&rdev
->wiphy
, dev
, mac_addr
, ¶ms
);
2091 dev_put(params
.vlan
);
2092 cfg80211_unlock_rdev(rdev
);
2100 static int nl80211_del_station(struct sk_buff
*skb
, struct genl_info
*info
)
2102 struct cfg80211_registered_device
*rdev
;
2104 struct net_device
*dev
;
2105 u8
*mac_addr
= NULL
;
2107 if (info
->attrs
[NL80211_ATTR_MAC
])
2108 mac_addr
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
2112 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2116 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_AP
&&
2117 dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_AP_VLAN
&&
2118 dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
) {
2123 if (!rdev
->ops
->del_station
) {
2128 err
= rdev
->ops
->del_station(&rdev
->wiphy
, dev
, mac_addr
);
2131 cfg80211_unlock_rdev(rdev
);
2139 static int nl80211_send_mpath(struct sk_buff
*msg
, u32 pid
, u32 seq
,
2140 int flags
, struct net_device
*dev
,
2141 u8
*dst
, u8
*next_hop
,
2142 struct mpath_info
*pinfo
)
2145 struct nlattr
*pinfoattr
;
2147 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
, NL80211_CMD_NEW_STATION
);
2151 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, dev
->ifindex
);
2152 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, dst
);
2153 NLA_PUT(msg
, NL80211_ATTR_MPATH_NEXT_HOP
, ETH_ALEN
, next_hop
);
2155 NLA_PUT_U32(msg
, NL80211_ATTR_GENERATION
, pinfo
->generation
);
2157 pinfoattr
= nla_nest_start(msg
, NL80211_ATTR_MPATH_INFO
);
2159 goto nla_put_failure
;
2160 if (pinfo
->filled
& MPATH_INFO_FRAME_QLEN
)
2161 NLA_PUT_U32(msg
, NL80211_MPATH_INFO_FRAME_QLEN
,
2163 if (pinfo
->filled
& MPATH_INFO_SN
)
2164 NLA_PUT_U32(msg
, NL80211_MPATH_INFO_SN
,
2166 if (pinfo
->filled
& MPATH_INFO_METRIC
)
2167 NLA_PUT_U32(msg
, NL80211_MPATH_INFO_METRIC
,
2169 if (pinfo
->filled
& MPATH_INFO_EXPTIME
)
2170 NLA_PUT_U32(msg
, NL80211_MPATH_INFO_EXPTIME
,
2172 if (pinfo
->filled
& MPATH_INFO_FLAGS
)
2173 NLA_PUT_U8(msg
, NL80211_MPATH_INFO_FLAGS
,
2175 if (pinfo
->filled
& MPATH_INFO_DISCOVERY_TIMEOUT
)
2176 NLA_PUT_U32(msg
, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT
,
2177 pinfo
->discovery_timeout
);
2178 if (pinfo
->filled
& MPATH_INFO_DISCOVERY_RETRIES
)
2179 NLA_PUT_U8(msg
, NL80211_MPATH_INFO_DISCOVERY_RETRIES
,
2180 pinfo
->discovery_retries
);
2182 nla_nest_end(msg
, pinfoattr
);
2184 return genlmsg_end(msg
, hdr
);
2187 genlmsg_cancel(msg
, hdr
);
2191 static int nl80211_dump_mpath(struct sk_buff
*skb
,
2192 struct netlink_callback
*cb
)
2194 struct mpath_info pinfo
;
2195 struct cfg80211_registered_device
*dev
;
2196 struct net_device
*netdev
;
2198 u8 next_hop
[ETH_ALEN
];
2199 int ifidx
= cb
->args
[0];
2200 int path_idx
= cb
->args
[1];
2204 ifidx
= nl80211_get_ifidx(cb
);
2210 netdev
= __dev_get_by_index(sock_net(skb
->sk
), ifidx
);
2216 dev
= cfg80211_get_dev_from_ifindex(sock_net(skb
->sk
), ifidx
);
2222 if (!dev
->ops
->dump_mpath
) {
2227 if (netdev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
) {
2233 err
= dev
->ops
->dump_mpath(&dev
->wiphy
, netdev
, path_idx
,
2234 dst
, next_hop
, &pinfo
);
2240 if (nl80211_send_mpath(skb
, NETLINK_CB(cb
->skb
).pid
,
2241 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
2242 netdev
, dst
, next_hop
,
2251 cb
->args
[1] = path_idx
;
2254 cfg80211_unlock_rdev(dev
);
2261 static int nl80211_get_mpath(struct sk_buff
*skb
, struct genl_info
*info
)
2263 struct cfg80211_registered_device
*rdev
;
2265 struct net_device
*dev
;
2266 struct mpath_info pinfo
;
2267 struct sk_buff
*msg
;
2269 u8 next_hop
[ETH_ALEN
];
2271 memset(&pinfo
, 0, sizeof(pinfo
));
2273 if (!info
->attrs
[NL80211_ATTR_MAC
])
2276 dst
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
2280 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2284 if (!rdev
->ops
->get_mpath
) {
2289 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
) {
2294 err
= rdev
->ops
->get_mpath(&rdev
->wiphy
, dev
, dst
, next_hop
, &pinfo
);
2298 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2302 if (nl80211_send_mpath(msg
, info
->snd_pid
, info
->snd_seq
, 0,
2303 dev
, dst
, next_hop
, &pinfo
) < 0)
2306 err
= genlmsg_reply(msg
, info
);
2312 cfg80211_unlock_rdev(rdev
);
2320 static int nl80211_set_mpath(struct sk_buff
*skb
, struct genl_info
*info
)
2322 struct cfg80211_registered_device
*rdev
;
2324 struct net_device
*dev
;
2326 u8
*next_hop
= NULL
;
2328 if (!info
->attrs
[NL80211_ATTR_MAC
])
2331 if (!info
->attrs
[NL80211_ATTR_MPATH_NEXT_HOP
])
2334 dst
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
2335 next_hop
= nla_data(info
->attrs
[NL80211_ATTR_MPATH_NEXT_HOP
]);
2339 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2343 if (!rdev
->ops
->change_mpath
) {
2348 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
) {
2353 if (!netif_running(dev
)) {
2358 err
= rdev
->ops
->change_mpath(&rdev
->wiphy
, dev
, dst
, next_hop
);
2361 cfg80211_unlock_rdev(rdev
);
2368 static int nl80211_new_mpath(struct sk_buff
*skb
, struct genl_info
*info
)
2370 struct cfg80211_registered_device
*rdev
;
2372 struct net_device
*dev
;
2374 u8
*next_hop
= NULL
;
2376 if (!info
->attrs
[NL80211_ATTR_MAC
])
2379 if (!info
->attrs
[NL80211_ATTR_MPATH_NEXT_HOP
])
2382 dst
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
2383 next_hop
= nla_data(info
->attrs
[NL80211_ATTR_MPATH_NEXT_HOP
]);
2387 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2391 if (!rdev
->ops
->add_mpath
) {
2396 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_MESH_POINT
) {
2401 if (!netif_running(dev
)) {
2406 err
= rdev
->ops
->add_mpath(&rdev
->wiphy
, dev
, dst
, next_hop
);
2409 cfg80211_unlock_rdev(rdev
);
2417 static int nl80211_del_mpath(struct sk_buff
*skb
, struct genl_info
*info
)
2419 struct cfg80211_registered_device
*rdev
;
2421 struct net_device
*dev
;
2424 if (info
->attrs
[NL80211_ATTR_MAC
])
2425 dst
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
2429 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2433 if (!rdev
->ops
->del_mpath
) {
2438 err
= rdev
->ops
->del_mpath(&rdev
->wiphy
, dev
, dst
);
2441 cfg80211_unlock_rdev(rdev
);
2449 static int nl80211_set_bss(struct sk_buff
*skb
, struct genl_info
*info
)
2451 struct cfg80211_registered_device
*rdev
;
2453 struct net_device
*dev
;
2454 struct bss_parameters params
;
2456 memset(¶ms
, 0, sizeof(params
));
2457 /* default to not changing parameters */
2458 params
.use_cts_prot
= -1;
2459 params
.use_short_preamble
= -1;
2460 params
.use_short_slot_time
= -1;
2462 if (info
->attrs
[NL80211_ATTR_BSS_CTS_PROT
])
2463 params
.use_cts_prot
=
2464 nla_get_u8(info
->attrs
[NL80211_ATTR_BSS_CTS_PROT
]);
2465 if (info
->attrs
[NL80211_ATTR_BSS_SHORT_PREAMBLE
])
2466 params
.use_short_preamble
=
2467 nla_get_u8(info
->attrs
[NL80211_ATTR_BSS_SHORT_PREAMBLE
]);
2468 if (info
->attrs
[NL80211_ATTR_BSS_SHORT_SLOT_TIME
])
2469 params
.use_short_slot_time
=
2470 nla_get_u8(info
->attrs
[NL80211_ATTR_BSS_SHORT_SLOT_TIME
]);
2471 if (info
->attrs
[NL80211_ATTR_BSS_BASIC_RATES
]) {
2472 params
.basic_rates
=
2473 nla_data(info
->attrs
[NL80211_ATTR_BSS_BASIC_RATES
]);
2474 params
.basic_rates_len
=
2475 nla_len(info
->attrs
[NL80211_ATTR_BSS_BASIC_RATES
]);
2480 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2484 if (!rdev
->ops
->change_bss
) {
2489 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_AP
) {
2494 err
= rdev
->ops
->change_bss(&rdev
->wiphy
, dev
, ¶ms
);
2497 cfg80211_unlock_rdev(rdev
);
2505 static const struct nla_policy
2506 reg_rule_policy
[NL80211_REG_RULE_ATTR_MAX
+ 1] = {
2507 [NL80211_ATTR_REG_RULE_FLAGS
] = { .type
= NLA_U32
},
2508 [NL80211_ATTR_FREQ_RANGE_START
] = { .type
= NLA_U32
},
2509 [NL80211_ATTR_FREQ_RANGE_END
] = { .type
= NLA_U32
},
2510 [NL80211_ATTR_FREQ_RANGE_MAX_BW
] = { .type
= NLA_U32
},
2511 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN
] = { .type
= NLA_U32
},
2512 [NL80211_ATTR_POWER_RULE_MAX_EIRP
] = { .type
= NLA_U32
},
2515 static int parse_reg_rule(struct nlattr
*tb
[],
2516 struct ieee80211_reg_rule
*reg_rule
)
2518 struct ieee80211_freq_range
*freq_range
= ®_rule
->freq_range
;
2519 struct ieee80211_power_rule
*power_rule
= ®_rule
->power_rule
;
2521 if (!tb
[NL80211_ATTR_REG_RULE_FLAGS
])
2523 if (!tb
[NL80211_ATTR_FREQ_RANGE_START
])
2525 if (!tb
[NL80211_ATTR_FREQ_RANGE_END
])
2527 if (!tb
[NL80211_ATTR_FREQ_RANGE_MAX_BW
])
2529 if (!tb
[NL80211_ATTR_POWER_RULE_MAX_EIRP
])
2532 reg_rule
->flags
= nla_get_u32(tb
[NL80211_ATTR_REG_RULE_FLAGS
]);
2534 freq_range
->start_freq_khz
=
2535 nla_get_u32(tb
[NL80211_ATTR_FREQ_RANGE_START
]);
2536 freq_range
->end_freq_khz
=
2537 nla_get_u32(tb
[NL80211_ATTR_FREQ_RANGE_END
]);
2538 freq_range
->max_bandwidth_khz
=
2539 nla_get_u32(tb
[NL80211_ATTR_FREQ_RANGE_MAX_BW
]);
2541 power_rule
->max_eirp
=
2542 nla_get_u32(tb
[NL80211_ATTR_POWER_RULE_MAX_EIRP
]);
2544 if (tb
[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN
])
2545 power_rule
->max_antenna_gain
=
2546 nla_get_u32(tb
[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN
]);
2551 static int nl80211_req_set_reg(struct sk_buff
*skb
, struct genl_info
*info
)
2557 * You should only get this when cfg80211 hasn't yet initialized
2558 * completely when built-in to the kernel right between the time
2559 * window between nl80211_init() and regulatory_init(), if that is
2562 mutex_lock(&cfg80211_mutex
);
2563 if (unlikely(!cfg80211_regdomain
)) {
2564 mutex_unlock(&cfg80211_mutex
);
2565 return -EINPROGRESS
;
2567 mutex_unlock(&cfg80211_mutex
);
2569 if (!info
->attrs
[NL80211_ATTR_REG_ALPHA2
])
2572 data
= nla_data(info
->attrs
[NL80211_ATTR_REG_ALPHA2
]);
2574 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
2575 /* We ignore world regdom requests with the old regdom setup */
2576 if (is_world_regdom(data
))
2580 r
= regulatory_hint_user(data
);
2585 static int nl80211_get_mesh_params(struct sk_buff
*skb
,
2586 struct genl_info
*info
)
2588 struct cfg80211_registered_device
*rdev
;
2589 struct mesh_config cur_params
;
2591 struct net_device
*dev
;
2593 struct nlattr
*pinfoattr
;
2594 struct sk_buff
*msg
;
2598 /* Look up our device */
2599 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2603 if (!rdev
->ops
->get_mesh_params
) {
2608 /* Get the mesh params */
2609 err
= rdev
->ops
->get_mesh_params(&rdev
->wiphy
, dev
, &cur_params
);
2613 /* Draw up a netlink message to send back */
2614 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2619 hdr
= nl80211hdr_put(msg
, info
->snd_pid
, info
->snd_seq
, 0,
2620 NL80211_CMD_GET_MESH_PARAMS
);
2622 goto nla_put_failure
;
2623 pinfoattr
= nla_nest_start(msg
, NL80211_ATTR_MESH_PARAMS
);
2625 goto nla_put_failure
;
2626 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, dev
->ifindex
);
2627 NLA_PUT_U16(msg
, NL80211_MESHCONF_RETRY_TIMEOUT
,
2628 cur_params
.dot11MeshRetryTimeout
);
2629 NLA_PUT_U16(msg
, NL80211_MESHCONF_CONFIRM_TIMEOUT
,
2630 cur_params
.dot11MeshConfirmTimeout
);
2631 NLA_PUT_U16(msg
, NL80211_MESHCONF_HOLDING_TIMEOUT
,
2632 cur_params
.dot11MeshHoldingTimeout
);
2633 NLA_PUT_U16(msg
, NL80211_MESHCONF_MAX_PEER_LINKS
,
2634 cur_params
.dot11MeshMaxPeerLinks
);
2635 NLA_PUT_U8(msg
, NL80211_MESHCONF_MAX_RETRIES
,
2636 cur_params
.dot11MeshMaxRetries
);
2637 NLA_PUT_U8(msg
, NL80211_MESHCONF_TTL
,
2638 cur_params
.dot11MeshTTL
);
2639 NLA_PUT_U8(msg
, NL80211_MESHCONF_AUTO_OPEN_PLINKS
,
2640 cur_params
.auto_open_plinks
);
2641 NLA_PUT_U8(msg
, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
,
2642 cur_params
.dot11MeshHWMPmaxPREQretries
);
2643 NLA_PUT_U32(msg
, NL80211_MESHCONF_PATH_REFRESH_TIME
,
2644 cur_params
.path_refresh_time
);
2645 NLA_PUT_U16(msg
, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
,
2646 cur_params
.min_discovery_timeout
);
2647 NLA_PUT_U32(msg
, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
,
2648 cur_params
.dot11MeshHWMPactivePathTimeout
);
2649 NLA_PUT_U16(msg
, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
,
2650 cur_params
.dot11MeshHWMPpreqMinInterval
);
2651 NLA_PUT_U16(msg
, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
,
2652 cur_params
.dot11MeshHWMPnetDiameterTraversalTime
);
2653 NLA_PUT_U8(msg
, NL80211_MESHCONF_HWMP_ROOTMODE
,
2654 cur_params
.dot11MeshHWMPRootMode
);
2655 nla_nest_end(msg
, pinfoattr
);
2656 genlmsg_end(msg
, hdr
);
2657 err
= genlmsg_reply(msg
, info
);
2661 genlmsg_cancel(msg
, hdr
);
2665 cfg80211_unlock_rdev(rdev
);
2673 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2675 if (table[attr_num]) {\
2676 cfg.param = nla_fn(table[attr_num]); \
2677 mask |= (1 << (attr_num - 1)); \
2681 static struct nla_policy
2682 nl80211_meshconf_params_policy
[NL80211_MESHCONF_ATTR_MAX
+1] __read_mostly
= {
2683 [NL80211_MESHCONF_RETRY_TIMEOUT
] = { .type
= NLA_U16
},
2684 [NL80211_MESHCONF_CONFIRM_TIMEOUT
] = { .type
= NLA_U16
},
2685 [NL80211_MESHCONF_HOLDING_TIMEOUT
] = { .type
= NLA_U16
},
2686 [NL80211_MESHCONF_MAX_PEER_LINKS
] = { .type
= NLA_U16
},
2687 [NL80211_MESHCONF_MAX_RETRIES
] = { .type
= NLA_U8
},
2688 [NL80211_MESHCONF_TTL
] = { .type
= NLA_U8
},
2689 [NL80211_MESHCONF_AUTO_OPEN_PLINKS
] = { .type
= NLA_U8
},
2691 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
] = { .type
= NLA_U8
},
2692 [NL80211_MESHCONF_PATH_REFRESH_TIME
] = { .type
= NLA_U32
},
2693 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
] = { .type
= NLA_U16
},
2694 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
] = { .type
= NLA_U32
},
2695 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
] = { .type
= NLA_U16
},
2696 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
] = { .type
= NLA_U16
},
2699 static int nl80211_set_mesh_params(struct sk_buff
*skb
, struct genl_info
*info
)
2703 struct cfg80211_registered_device
*rdev
;
2704 struct net_device
*dev
;
2705 struct mesh_config cfg
;
2706 struct nlattr
*tb
[NL80211_MESHCONF_ATTR_MAX
+ 1];
2707 struct nlattr
*parent_attr
;
2709 parent_attr
= info
->attrs
[NL80211_ATTR_MESH_PARAMS
];
2712 if (nla_parse_nested(tb
, NL80211_MESHCONF_ATTR_MAX
,
2713 parent_attr
, nl80211_meshconf_params_policy
))
2718 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2722 if (!rdev
->ops
->set_mesh_params
) {
2727 /* This makes sure that there aren't more than 32 mesh config
2728 * parameters (otherwise our bitfield scheme would not work.) */
2729 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX
> 32);
2731 /* Fill in the params struct */
2733 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshRetryTimeout
,
2734 mask
, NL80211_MESHCONF_RETRY_TIMEOUT
, nla_get_u16
);
2735 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshConfirmTimeout
,
2736 mask
, NL80211_MESHCONF_CONFIRM_TIMEOUT
, nla_get_u16
);
2737 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshHoldingTimeout
,
2738 mask
, NL80211_MESHCONF_HOLDING_TIMEOUT
, nla_get_u16
);
2739 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshMaxPeerLinks
,
2740 mask
, NL80211_MESHCONF_MAX_PEER_LINKS
, nla_get_u16
);
2741 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshMaxRetries
,
2742 mask
, NL80211_MESHCONF_MAX_RETRIES
, nla_get_u8
);
2743 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshTTL
,
2744 mask
, NL80211_MESHCONF_TTL
, nla_get_u8
);
2745 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, auto_open_plinks
,
2746 mask
, NL80211_MESHCONF_AUTO_OPEN_PLINKS
, nla_get_u8
);
2747 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshHWMPmaxPREQretries
,
2748 mask
, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
,
2750 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, path_refresh_time
,
2751 mask
, NL80211_MESHCONF_PATH_REFRESH_TIME
, nla_get_u32
);
2752 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, min_discovery_timeout
,
2753 mask
, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
,
2755 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshHWMPactivePathTimeout
,
2756 mask
, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
,
2758 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
, dot11MeshHWMPpreqMinInterval
,
2759 mask
, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
,
2761 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
,
2762 dot11MeshHWMPnetDiameterTraversalTime
,
2763 mask
, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
,
2765 FILL_IN_MESH_PARAM_IF_SET(tb
, cfg
,
2766 dot11MeshHWMPRootMode
, mask
,
2767 NL80211_MESHCONF_HWMP_ROOTMODE
,
2771 err
= rdev
->ops
->set_mesh_params(&rdev
->wiphy
, dev
, &cfg
, mask
);
2775 cfg80211_unlock_rdev(rdev
);
2783 #undef FILL_IN_MESH_PARAM_IF_SET
2785 static int nl80211_get_reg(struct sk_buff
*skb
, struct genl_info
*info
)
2787 struct sk_buff
*msg
;
2789 struct nlattr
*nl_reg_rules
;
2793 mutex_lock(&cfg80211_mutex
);
2795 if (!cfg80211_regdomain
)
2798 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2804 hdr
= nl80211hdr_put(msg
, info
->snd_pid
, info
->snd_seq
, 0,
2805 NL80211_CMD_GET_REG
);
2807 goto nla_put_failure
;
2809 NLA_PUT_STRING(msg
, NL80211_ATTR_REG_ALPHA2
,
2810 cfg80211_regdomain
->alpha2
);
2812 nl_reg_rules
= nla_nest_start(msg
, NL80211_ATTR_REG_RULES
);
2814 goto nla_put_failure
;
2816 for (i
= 0; i
< cfg80211_regdomain
->n_reg_rules
; i
++) {
2817 struct nlattr
*nl_reg_rule
;
2818 const struct ieee80211_reg_rule
*reg_rule
;
2819 const struct ieee80211_freq_range
*freq_range
;
2820 const struct ieee80211_power_rule
*power_rule
;
2822 reg_rule
= &cfg80211_regdomain
->reg_rules
[i
];
2823 freq_range
= ®_rule
->freq_range
;
2824 power_rule
= ®_rule
->power_rule
;
2826 nl_reg_rule
= nla_nest_start(msg
, i
);
2828 goto nla_put_failure
;
2830 NLA_PUT_U32(msg
, NL80211_ATTR_REG_RULE_FLAGS
,
2832 NLA_PUT_U32(msg
, NL80211_ATTR_FREQ_RANGE_START
,
2833 freq_range
->start_freq_khz
);
2834 NLA_PUT_U32(msg
, NL80211_ATTR_FREQ_RANGE_END
,
2835 freq_range
->end_freq_khz
);
2836 NLA_PUT_U32(msg
, NL80211_ATTR_FREQ_RANGE_MAX_BW
,
2837 freq_range
->max_bandwidth_khz
);
2838 NLA_PUT_U32(msg
, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN
,
2839 power_rule
->max_antenna_gain
);
2840 NLA_PUT_U32(msg
, NL80211_ATTR_POWER_RULE_MAX_EIRP
,
2841 power_rule
->max_eirp
);
2843 nla_nest_end(msg
, nl_reg_rule
);
2846 nla_nest_end(msg
, nl_reg_rules
);
2848 genlmsg_end(msg
, hdr
);
2849 err
= genlmsg_reply(msg
, info
);
2853 genlmsg_cancel(msg
, hdr
);
2856 mutex_unlock(&cfg80211_mutex
);
2860 static int nl80211_set_reg(struct sk_buff
*skb
, struct genl_info
*info
)
2862 struct nlattr
*tb
[NL80211_REG_RULE_ATTR_MAX
+ 1];
2863 struct nlattr
*nl_reg_rule
;
2864 char *alpha2
= NULL
;
2865 int rem_reg_rules
= 0, r
= 0;
2866 u32 num_rules
= 0, rule_idx
= 0, size_of_regd
;
2867 struct ieee80211_regdomain
*rd
= NULL
;
2869 if (!info
->attrs
[NL80211_ATTR_REG_ALPHA2
])
2872 if (!info
->attrs
[NL80211_ATTR_REG_RULES
])
2875 alpha2
= nla_data(info
->attrs
[NL80211_ATTR_REG_ALPHA2
]);
2877 nla_for_each_nested(nl_reg_rule
, info
->attrs
[NL80211_ATTR_REG_RULES
],
2880 if (num_rules
> NL80211_MAX_SUPP_REG_RULES
)
2884 mutex_lock(&cfg80211_mutex
);
2886 if (!reg_is_valid_request(alpha2
)) {
2891 size_of_regd
= sizeof(struct ieee80211_regdomain
) +
2892 (num_rules
* sizeof(struct ieee80211_reg_rule
));
2894 rd
= kzalloc(size_of_regd
, GFP_KERNEL
);
2900 rd
->n_reg_rules
= num_rules
;
2901 rd
->alpha2
[0] = alpha2
[0];
2902 rd
->alpha2
[1] = alpha2
[1];
2904 nla_for_each_nested(nl_reg_rule
, info
->attrs
[NL80211_ATTR_REG_RULES
],
2906 nla_parse(tb
, NL80211_REG_RULE_ATTR_MAX
,
2907 nla_data(nl_reg_rule
), nla_len(nl_reg_rule
),
2909 r
= parse_reg_rule(tb
, &rd
->reg_rules
[rule_idx
]);
2915 if (rule_idx
> NL80211_MAX_SUPP_REG_RULES
) {
2921 BUG_ON(rule_idx
!= num_rules
);
2925 mutex_unlock(&cfg80211_mutex
);
2930 mutex_unlock(&cfg80211_mutex
);
2935 static int validate_scan_freqs(struct nlattr
*freqs
)
2937 struct nlattr
*attr1
, *attr2
;
2938 int n_channels
= 0, tmp1
, tmp2
;
2940 nla_for_each_nested(attr1
, freqs
, tmp1
) {
2943 * Some hardware has a limited channel list for
2944 * scanning, and it is pretty much nonsensical
2945 * to scan for a channel twice, so disallow that
2946 * and don't require drivers to check that the
2947 * channel list they get isn't longer than what
2948 * they can scan, as long as they can scan all
2949 * the channels they registered at once.
2951 nla_for_each_nested(attr2
, freqs
, tmp2
)
2952 if (attr1
!= attr2
&&
2953 nla_get_u32(attr1
) == nla_get_u32(attr2
))
2960 static int nl80211_trigger_scan(struct sk_buff
*skb
, struct genl_info
*info
)
2962 struct cfg80211_registered_device
*rdev
;
2963 struct net_device
*dev
;
2964 struct cfg80211_scan_request
*request
;
2965 struct cfg80211_ssid
*ssid
;
2966 struct ieee80211_channel
*channel
;
2967 struct nlattr
*attr
;
2968 struct wiphy
*wiphy
;
2969 int err
, tmp
, n_ssids
= 0, n_channels
, i
;
2970 enum ieee80211_band band
;
2973 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
2978 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
2982 wiphy
= &rdev
->wiphy
;
2984 if (!rdev
->ops
->scan
) {
2989 if (!netif_running(dev
)) {
2994 if (rdev
->scan_req
) {
2999 if (info
->attrs
[NL80211_ATTR_SCAN_FREQUENCIES
]) {
3000 n_channels
= validate_scan_freqs(
3001 info
->attrs
[NL80211_ATTR_SCAN_FREQUENCIES
]);
3009 for (band
= 0; band
< IEEE80211_NUM_BANDS
; band
++)
3010 if (wiphy
->bands
[band
])
3011 n_channels
+= wiphy
->bands
[band
]->n_channels
;
3014 if (info
->attrs
[NL80211_ATTR_SCAN_SSIDS
])
3015 nla_for_each_nested(attr
, info
->attrs
[NL80211_ATTR_SCAN_SSIDS
], tmp
)
3018 if (n_ssids
> wiphy
->max_scan_ssids
) {
3023 if (info
->attrs
[NL80211_ATTR_IE
])
3024 ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3028 if (ie_len
> wiphy
->max_scan_ie_len
) {
3033 request
= kzalloc(sizeof(*request
)
3034 + sizeof(*ssid
) * n_ssids
3035 + sizeof(channel
) * n_channels
3036 + ie_len
, GFP_KERNEL
);
3043 request
->ssids
= (void *)&request
->channels
[n_channels
];
3044 request
->n_ssids
= n_ssids
;
3047 request
->ie
= (void *)(request
->ssids
+ n_ssids
);
3049 request
->ie
= (void *)(request
->channels
+ n_channels
);
3053 if (info
->attrs
[NL80211_ATTR_SCAN_FREQUENCIES
]) {
3054 /* user specified, bail out if channel not found */
3055 nla_for_each_nested(attr
, info
->attrs
[NL80211_ATTR_SCAN_FREQUENCIES
], tmp
) {
3056 struct ieee80211_channel
*chan
;
3058 chan
= ieee80211_get_channel(wiphy
, nla_get_u32(attr
));
3065 /* ignore disabled channels */
3066 if (chan
->flags
& IEEE80211_CHAN_DISABLED
)
3069 request
->channels
[i
] = chan
;
3074 for (band
= 0; band
< IEEE80211_NUM_BANDS
; band
++) {
3076 if (!wiphy
->bands
[band
])
3078 for (j
= 0; j
< wiphy
->bands
[band
]->n_channels
; j
++) {
3079 struct ieee80211_channel
*chan
;
3081 chan
= &wiphy
->bands
[band
]->channels
[j
];
3083 if (chan
->flags
& IEEE80211_CHAN_DISABLED
)
3086 request
->channels
[i
] = chan
;
3097 request
->n_channels
= i
;
3100 if (info
->attrs
[NL80211_ATTR_SCAN_SSIDS
]) {
3101 nla_for_each_nested(attr
, info
->attrs
[NL80211_ATTR_SCAN_SSIDS
], tmp
) {
3102 if (request
->ssids
[i
].ssid_len
> IEEE80211_MAX_SSID_LEN
) {
3106 memcpy(request
->ssids
[i
].ssid
, nla_data(attr
), nla_len(attr
));
3107 request
->ssids
[i
].ssid_len
= nla_len(attr
);
3112 if (info
->attrs
[NL80211_ATTR_IE
]) {
3113 request
->ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3114 memcpy((void *)request
->ie
,
3115 nla_data(info
->attrs
[NL80211_ATTR_IE
]),
3120 request
->wiphy
= &rdev
->wiphy
;
3122 rdev
->scan_req
= request
;
3123 err
= rdev
->ops
->scan(&rdev
->wiphy
, dev
, request
);
3126 nl80211_send_scan_start(rdev
, dev
);
3132 rdev
->scan_req
= NULL
;
3136 cfg80211_unlock_rdev(rdev
);
3144 static int nl80211_send_bss(struct sk_buff
*msg
, u32 pid
, u32 seq
, int flags
,
3145 struct cfg80211_registered_device
*rdev
,
3146 struct wireless_dev
*wdev
,
3147 struct cfg80211_internal_bss
*intbss
)
3149 struct cfg80211_bss
*res
= &intbss
->pub
;
3154 ASSERT_WDEV_LOCK(wdev
);
3156 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
,
3157 NL80211_CMD_NEW_SCAN_RESULTS
);
3161 NLA_PUT_U32(msg
, NL80211_ATTR_GENERATION
, rdev
->bss_generation
);
3162 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, wdev
->netdev
->ifindex
);
3164 bss
= nla_nest_start(msg
, NL80211_ATTR_BSS
);
3166 goto nla_put_failure
;
3167 if (!is_zero_ether_addr(res
->bssid
))
3168 NLA_PUT(msg
, NL80211_BSS_BSSID
, ETH_ALEN
, res
->bssid
);
3169 if (res
->information_elements
&& res
->len_information_elements
)
3170 NLA_PUT(msg
, NL80211_BSS_INFORMATION_ELEMENTS
,
3171 res
->len_information_elements
,
3172 res
->information_elements
);
3174 NLA_PUT_U64(msg
, NL80211_BSS_TSF
, res
->tsf
);
3175 if (res
->beacon_interval
)
3176 NLA_PUT_U16(msg
, NL80211_BSS_BEACON_INTERVAL
, res
->beacon_interval
);
3177 NLA_PUT_U16(msg
, NL80211_BSS_CAPABILITY
, res
->capability
);
3178 NLA_PUT_U32(msg
, NL80211_BSS_FREQUENCY
, res
->channel
->center_freq
);
3179 NLA_PUT_U32(msg
, NL80211_BSS_SEEN_MS_AGO
,
3180 jiffies_to_msecs(jiffies
- intbss
->ts
));
3182 switch (rdev
->wiphy
.signal_type
) {
3183 case CFG80211_SIGNAL_TYPE_MBM
:
3184 NLA_PUT_U32(msg
, NL80211_BSS_SIGNAL_MBM
, res
->signal
);
3186 case CFG80211_SIGNAL_TYPE_UNSPEC
:
3187 NLA_PUT_U8(msg
, NL80211_BSS_SIGNAL_UNSPEC
, res
->signal
);
3193 switch (wdev
->iftype
) {
3194 case NL80211_IFTYPE_STATION
:
3195 if (intbss
== wdev
->current_bss
)
3196 NLA_PUT_U32(msg
, NL80211_BSS_STATUS
,
3197 NL80211_BSS_STATUS_ASSOCIATED
);
3198 else for (i
= 0; i
< MAX_AUTH_BSSES
; i
++) {
3199 if (intbss
!= wdev
->auth_bsses
[i
])
3201 NLA_PUT_U32(msg
, NL80211_BSS_STATUS
,
3202 NL80211_BSS_STATUS_AUTHENTICATED
);
3206 case NL80211_IFTYPE_ADHOC
:
3207 if (intbss
== wdev
->current_bss
)
3208 NLA_PUT_U32(msg
, NL80211_BSS_STATUS
,
3209 NL80211_BSS_STATUS_IBSS_JOINED
);
3215 nla_nest_end(msg
, bss
);
3217 return genlmsg_end(msg
, hdr
);
3220 genlmsg_cancel(msg
, hdr
);
3224 static int nl80211_dump_scan(struct sk_buff
*skb
,
3225 struct netlink_callback
*cb
)
3227 struct cfg80211_registered_device
*rdev
;
3228 struct net_device
*dev
;
3229 struct cfg80211_internal_bss
*scan
;
3230 struct wireless_dev
*wdev
;
3231 int ifidx
= cb
->args
[0];
3232 int start
= cb
->args
[1], idx
= 0;
3236 ifidx
= nl80211_get_ifidx(cb
);
3239 cb
->args
[0] = ifidx
;
3241 dev
= dev_get_by_index(sock_net(skb
->sk
), ifidx
);
3245 rdev
= cfg80211_get_dev_from_ifindex(sock_net(skb
->sk
), ifidx
);
3247 err
= PTR_ERR(rdev
);
3248 goto out_put_netdev
;
3251 wdev
= dev
->ieee80211_ptr
;
3254 spin_lock_bh(&rdev
->bss_lock
);
3255 cfg80211_bss_expire(rdev
);
3257 list_for_each_entry(scan
, &rdev
->bss_list
, list
) {
3260 if (nl80211_send_bss(skb
,
3261 NETLINK_CB(cb
->skb
).pid
,
3262 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
3263 rdev
, wdev
, scan
) < 0) {
3270 spin_unlock_bh(&rdev
->bss_lock
);
3275 cfg80211_unlock_rdev(rdev
);
3282 static int nl80211_send_survey(struct sk_buff
*msg
, u32 pid
, u32 seq
,
3283 int flags
, struct net_device
*dev
,
3284 struct survey_info
*survey
)
3287 struct nlattr
*infoattr
;
3289 /* Survey without a channel doesn't make sense */
3290 if (!survey
->channel
)
3293 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
,
3294 NL80211_CMD_NEW_SURVEY_RESULTS
);
3298 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, dev
->ifindex
);
3300 infoattr
= nla_nest_start(msg
, NL80211_ATTR_SURVEY_INFO
);
3302 goto nla_put_failure
;
3304 NLA_PUT_U32(msg
, NL80211_SURVEY_INFO_FREQUENCY
,
3305 survey
->channel
->center_freq
);
3306 if (survey
->filled
& SURVEY_INFO_NOISE_DBM
)
3307 NLA_PUT_U8(msg
, NL80211_SURVEY_INFO_NOISE
,
3310 nla_nest_end(msg
, infoattr
);
3312 return genlmsg_end(msg
, hdr
);
3315 genlmsg_cancel(msg
, hdr
);
3319 static int nl80211_dump_survey(struct sk_buff
*skb
,
3320 struct netlink_callback
*cb
)
3322 struct survey_info survey
;
3323 struct cfg80211_registered_device
*dev
;
3324 struct net_device
*netdev
;
3325 int ifidx
= cb
->args
[0];
3326 int survey_idx
= cb
->args
[1];
3330 ifidx
= nl80211_get_ifidx(cb
);
3333 cb
->args
[0] = ifidx
;
3337 netdev
= __dev_get_by_index(sock_net(skb
->sk
), ifidx
);
3343 dev
= cfg80211_get_dev_from_ifindex(sock_net(skb
->sk
), ifidx
);
3349 if (!dev
->ops
->dump_survey
) {
3355 res
= dev
->ops
->dump_survey(&dev
->wiphy
, netdev
, survey_idx
,
3362 if (nl80211_send_survey(skb
,
3363 NETLINK_CB(cb
->skb
).pid
,
3364 cb
->nlh
->nlmsg_seq
, NLM_F_MULTI
,
3372 cb
->args
[1] = survey_idx
;
3375 cfg80211_unlock_rdev(dev
);
3382 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type
)
3384 return auth_type
<= NL80211_AUTHTYPE_MAX
;
3387 static bool nl80211_valid_wpa_versions(u32 wpa_versions
)
3389 return !(wpa_versions
& ~(NL80211_WPA_VERSION_1
|
3390 NL80211_WPA_VERSION_2
));
3393 static bool nl80211_valid_akm_suite(u32 akm
)
3395 return akm
== WLAN_AKM_SUITE_8021X
||
3396 akm
== WLAN_AKM_SUITE_PSK
;
3399 static bool nl80211_valid_cipher_suite(u32 cipher
)
3401 return cipher
== WLAN_CIPHER_SUITE_WEP40
||
3402 cipher
== WLAN_CIPHER_SUITE_WEP104
||
3403 cipher
== WLAN_CIPHER_SUITE_TKIP
||
3404 cipher
== WLAN_CIPHER_SUITE_CCMP
||
3405 cipher
== WLAN_CIPHER_SUITE_AES_CMAC
;
3409 static int nl80211_authenticate(struct sk_buff
*skb
, struct genl_info
*info
)
3411 struct cfg80211_registered_device
*rdev
;
3412 struct net_device
*dev
;
3413 struct ieee80211_channel
*chan
;
3414 const u8
*bssid
, *ssid
, *ie
= NULL
;
3415 int err
, ssid_len
, ie_len
= 0;
3416 enum nl80211_auth_type auth_type
;
3417 struct key_parse key
;
3419 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
3422 if (!info
->attrs
[NL80211_ATTR_MAC
])
3425 if (!info
->attrs
[NL80211_ATTR_AUTH_TYPE
])
3428 if (!info
->attrs
[NL80211_ATTR_SSID
])
3431 if (!info
->attrs
[NL80211_ATTR_WIPHY_FREQ
])
3434 err
= nl80211_parse_key(info
, &key
);
3439 if (!key
.p
.key
|| !key
.p
.key_len
)
3441 if ((key
.p
.cipher
!= WLAN_CIPHER_SUITE_WEP40
||
3442 key
.p
.key_len
!= WLAN_KEY_LEN_WEP40
) &&
3443 (key
.p
.cipher
!= WLAN_CIPHER_SUITE_WEP104
||
3444 key
.p
.key_len
!= WLAN_KEY_LEN_WEP104
))
3455 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
3459 if (!rdev
->ops
->auth
) {
3464 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_STATION
) {
3469 if (!netif_running(dev
)) {
3474 bssid
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
3475 chan
= ieee80211_get_channel(&rdev
->wiphy
,
3476 nla_get_u32(info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]));
3477 if (!chan
|| (chan
->flags
& IEEE80211_CHAN_DISABLED
)) {
3482 ssid
= nla_data(info
->attrs
[NL80211_ATTR_SSID
]);
3483 ssid_len
= nla_len(info
->attrs
[NL80211_ATTR_SSID
]);
3485 if (info
->attrs
[NL80211_ATTR_IE
]) {
3486 ie
= nla_data(info
->attrs
[NL80211_ATTR_IE
]);
3487 ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3490 auth_type
= nla_get_u32(info
->attrs
[NL80211_ATTR_AUTH_TYPE
]);
3491 if (!nl80211_valid_auth_type(auth_type
)) {
3496 err
= cfg80211_mlme_auth(rdev
, dev
, chan
, auth_type
, bssid
,
3497 ssid
, ssid_len
, ie
, ie_len
,
3498 key
.p
.key
, key
.p
.key_len
, key
.idx
);
3501 cfg80211_unlock_rdev(rdev
);
3508 static int nl80211_crypto_settings(struct genl_info
*info
,
3509 struct cfg80211_crypto_settings
*settings
,
3512 memset(settings
, 0, sizeof(*settings
));
3514 settings
->control_port
= info
->attrs
[NL80211_ATTR_CONTROL_PORT
];
3516 if (info
->attrs
[NL80211_ATTR_CIPHER_SUITES_PAIRWISE
]) {
3520 data
= nla_data(info
->attrs
[NL80211_ATTR_CIPHER_SUITES_PAIRWISE
]);
3521 len
= nla_len(info
->attrs
[NL80211_ATTR_CIPHER_SUITES_PAIRWISE
]);
3522 settings
->n_ciphers_pairwise
= len
/ sizeof(u32
);
3524 if (len
% sizeof(u32
))
3527 if (settings
->n_ciphers_pairwise
> cipher_limit
)
3530 memcpy(settings
->ciphers_pairwise
, data
, len
);
3532 for (i
= 0; i
< settings
->n_ciphers_pairwise
; i
++)
3533 if (!nl80211_valid_cipher_suite(
3534 settings
->ciphers_pairwise
[i
]))
3538 if (info
->attrs
[NL80211_ATTR_CIPHER_SUITE_GROUP
]) {
3539 settings
->cipher_group
=
3540 nla_get_u32(info
->attrs
[NL80211_ATTR_CIPHER_SUITE_GROUP
]);
3541 if (!nl80211_valid_cipher_suite(settings
->cipher_group
))
3545 if (info
->attrs
[NL80211_ATTR_WPA_VERSIONS
]) {
3546 settings
->wpa_versions
=
3547 nla_get_u32(info
->attrs
[NL80211_ATTR_WPA_VERSIONS
]);
3548 if (!nl80211_valid_wpa_versions(settings
->wpa_versions
))
3552 if (info
->attrs
[NL80211_ATTR_AKM_SUITES
]) {
3556 data
= nla_data(info
->attrs
[NL80211_ATTR_AKM_SUITES
]);
3557 len
= nla_len(info
->attrs
[NL80211_ATTR_AKM_SUITES
]);
3558 settings
->n_akm_suites
= len
/ sizeof(u32
);
3560 if (len
% sizeof(u32
))
3563 memcpy(settings
->akm_suites
, data
, len
);
3565 for (i
= 0; i
< settings
->n_ciphers_pairwise
; i
++)
3566 if (!nl80211_valid_akm_suite(settings
->akm_suites
[i
]))
3573 static int nl80211_associate(struct sk_buff
*skb
, struct genl_info
*info
)
3575 struct cfg80211_registered_device
*rdev
;
3576 struct net_device
*dev
;
3577 struct cfg80211_crypto_settings crypto
;
3578 struct ieee80211_channel
*chan
, *fixedchan
;
3579 const u8
*bssid
, *ssid
, *ie
= NULL
, *prev_bssid
= NULL
;
3580 int err
, ssid_len
, ie_len
= 0;
3581 bool use_mfp
= false;
3583 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
3586 if (!info
->attrs
[NL80211_ATTR_MAC
] ||
3587 !info
->attrs
[NL80211_ATTR_SSID
] ||
3588 !info
->attrs
[NL80211_ATTR_WIPHY_FREQ
])
3593 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
3597 if (!rdev
->ops
->assoc
) {
3602 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_STATION
) {
3607 if (!netif_running(dev
)) {
3612 bssid
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
3614 chan
= ieee80211_get_channel(&rdev
->wiphy
,
3615 nla_get_u32(info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]));
3616 if (!chan
|| (chan
->flags
& IEEE80211_CHAN_DISABLED
)) {
3621 mutex_lock(&rdev
->devlist_mtx
);
3622 fixedchan
= rdev_fixed_channel(rdev
, NULL
);
3623 if (fixedchan
&& chan
!= fixedchan
) {
3625 mutex_unlock(&rdev
->devlist_mtx
);
3628 mutex_unlock(&rdev
->devlist_mtx
);
3630 ssid
= nla_data(info
->attrs
[NL80211_ATTR_SSID
]);
3631 ssid_len
= nla_len(info
->attrs
[NL80211_ATTR_SSID
]);
3633 if (info
->attrs
[NL80211_ATTR_IE
]) {
3634 ie
= nla_data(info
->attrs
[NL80211_ATTR_IE
]);
3635 ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3638 if (info
->attrs
[NL80211_ATTR_USE_MFP
]) {
3639 enum nl80211_mfp mfp
=
3640 nla_get_u32(info
->attrs
[NL80211_ATTR_USE_MFP
]);
3641 if (mfp
== NL80211_MFP_REQUIRED
)
3643 else if (mfp
!= NL80211_MFP_NO
) {
3649 if (info
->attrs
[NL80211_ATTR_PREV_BSSID
])
3650 prev_bssid
= nla_data(info
->attrs
[NL80211_ATTR_PREV_BSSID
]);
3652 err
= nl80211_crypto_settings(info
, &crypto
, 1);
3654 err
= cfg80211_mlme_assoc(rdev
, dev
, chan
, bssid
, prev_bssid
,
3655 ssid
, ssid_len
, ie
, ie_len
, use_mfp
,
3659 cfg80211_unlock_rdev(rdev
);
3666 static int nl80211_deauthenticate(struct sk_buff
*skb
, struct genl_info
*info
)
3668 struct cfg80211_registered_device
*rdev
;
3669 struct net_device
*dev
;
3670 const u8
*ie
= NULL
, *bssid
;
3671 int err
, ie_len
= 0;
3674 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
3677 if (!info
->attrs
[NL80211_ATTR_MAC
])
3680 if (!info
->attrs
[NL80211_ATTR_REASON_CODE
])
3685 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
3689 if (!rdev
->ops
->deauth
) {
3694 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_STATION
) {
3699 if (!netif_running(dev
)) {
3704 bssid
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
3706 reason_code
= nla_get_u16(info
->attrs
[NL80211_ATTR_REASON_CODE
]);
3707 if (reason_code
== 0) {
3708 /* Reason Code 0 is reserved */
3713 if (info
->attrs
[NL80211_ATTR_IE
]) {
3714 ie
= nla_data(info
->attrs
[NL80211_ATTR_IE
]);
3715 ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3718 err
= cfg80211_mlme_deauth(rdev
, dev
, bssid
, ie
, ie_len
, reason_code
);
3721 cfg80211_unlock_rdev(rdev
);
3728 static int nl80211_disassociate(struct sk_buff
*skb
, struct genl_info
*info
)
3730 struct cfg80211_registered_device
*rdev
;
3731 struct net_device
*dev
;
3732 const u8
*ie
= NULL
, *bssid
;
3733 int err
, ie_len
= 0;
3736 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
3739 if (!info
->attrs
[NL80211_ATTR_MAC
])
3742 if (!info
->attrs
[NL80211_ATTR_REASON_CODE
])
3747 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
3751 if (!rdev
->ops
->disassoc
) {
3756 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_STATION
) {
3761 if (!netif_running(dev
)) {
3766 bssid
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
3768 reason_code
= nla_get_u16(info
->attrs
[NL80211_ATTR_REASON_CODE
]);
3769 if (reason_code
== 0) {
3770 /* Reason Code 0 is reserved */
3775 if (info
->attrs
[NL80211_ATTR_IE
]) {
3776 ie
= nla_data(info
->attrs
[NL80211_ATTR_IE
]);
3777 ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3780 err
= cfg80211_mlme_disassoc(rdev
, dev
, bssid
, ie
, ie_len
, reason_code
);
3783 cfg80211_unlock_rdev(rdev
);
3790 static int nl80211_join_ibss(struct sk_buff
*skb
, struct genl_info
*info
)
3792 struct cfg80211_registered_device
*rdev
;
3793 struct net_device
*dev
;
3794 struct cfg80211_ibss_params ibss
;
3795 struct wiphy
*wiphy
;
3796 struct cfg80211_cached_keys
*connkeys
= NULL
;
3799 memset(&ibss
, 0, sizeof(ibss
));
3801 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
3804 if (!info
->attrs
[NL80211_ATTR_WIPHY_FREQ
] ||
3805 !info
->attrs
[NL80211_ATTR_SSID
] ||
3806 !nla_len(info
->attrs
[NL80211_ATTR_SSID
]))
3809 ibss
.beacon_interval
= 100;
3811 if (info
->attrs
[NL80211_ATTR_BEACON_INTERVAL
]) {
3812 ibss
.beacon_interval
=
3813 nla_get_u32(info
->attrs
[NL80211_ATTR_BEACON_INTERVAL
]);
3814 if (ibss
.beacon_interval
< 1 || ibss
.beacon_interval
> 10000)
3820 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
3824 if (!rdev
->ops
->join_ibss
) {
3829 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_ADHOC
) {
3834 if (!netif_running(dev
)) {
3839 wiphy
= &rdev
->wiphy
;
3841 if (info
->attrs
[NL80211_ATTR_MAC
])
3842 ibss
.bssid
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
3843 ibss
.ssid
= nla_data(info
->attrs
[NL80211_ATTR_SSID
]);
3844 ibss
.ssid_len
= nla_len(info
->attrs
[NL80211_ATTR_SSID
]);
3846 if (info
->attrs
[NL80211_ATTR_IE
]) {
3847 ibss
.ie
= nla_data(info
->attrs
[NL80211_ATTR_IE
]);
3848 ibss
.ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
3851 ibss
.channel
= ieee80211_get_channel(wiphy
,
3852 nla_get_u32(info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]));
3853 if (!ibss
.channel
||
3854 ibss
.channel
->flags
& IEEE80211_CHAN_NO_IBSS
||
3855 ibss
.channel
->flags
& IEEE80211_CHAN_DISABLED
) {
3860 ibss
.channel_fixed
= !!info
->attrs
[NL80211_ATTR_FREQ_FIXED
];
3861 ibss
.privacy
= !!info
->attrs
[NL80211_ATTR_PRIVACY
];
3863 if (ibss
.privacy
&& info
->attrs
[NL80211_ATTR_KEYS
]) {
3864 connkeys
= nl80211_parse_connkeys(rdev
,
3865 info
->attrs
[NL80211_ATTR_KEYS
]);
3866 if (IS_ERR(connkeys
)) {
3867 err
= PTR_ERR(connkeys
);
3873 err
= cfg80211_join_ibss(rdev
, dev
, &ibss
, connkeys
);
3876 cfg80211_unlock_rdev(rdev
);
3885 static int nl80211_leave_ibss(struct sk_buff
*skb
, struct genl_info
*info
)
3887 struct cfg80211_registered_device
*rdev
;
3888 struct net_device
*dev
;
3893 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
3897 if (!rdev
->ops
->leave_ibss
) {
3902 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_ADHOC
) {
3907 if (!netif_running(dev
)) {
3912 err
= cfg80211_leave_ibss(rdev
, dev
, false);
3915 cfg80211_unlock_rdev(rdev
);
3922 #ifdef CONFIG_NL80211_TESTMODE
3923 static struct genl_multicast_group nl80211_testmode_mcgrp
= {
3927 static int nl80211_testmode_do(struct sk_buff
*skb
, struct genl_info
*info
)
3929 struct cfg80211_registered_device
*rdev
;
3932 if (!info
->attrs
[NL80211_ATTR_TESTDATA
])
3937 rdev
= cfg80211_get_dev_from_info(info
);
3939 err
= PTR_ERR(rdev
);
3944 if (rdev
->ops
->testmode_cmd
) {
3945 rdev
->testmode_info
= info
;
3946 err
= rdev
->ops
->testmode_cmd(&rdev
->wiphy
,
3947 nla_data(info
->attrs
[NL80211_ATTR_TESTDATA
]),
3948 nla_len(info
->attrs
[NL80211_ATTR_TESTDATA
]));
3949 rdev
->testmode_info
= NULL
;
3952 cfg80211_unlock_rdev(rdev
);
3959 static struct sk_buff
*
3960 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device
*rdev
,
3961 int approxlen
, u32 pid
, u32 seq
, gfp_t gfp
)
3963 struct sk_buff
*skb
;
3965 struct nlattr
*data
;
3967 skb
= nlmsg_new(approxlen
+ 100, gfp
);
3971 hdr
= nl80211hdr_put(skb
, pid
, seq
, 0, NL80211_CMD_TESTMODE
);
3977 NLA_PUT_U32(skb
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
3978 data
= nla_nest_start(skb
, NL80211_ATTR_TESTDATA
);
3980 ((void **)skb
->cb
)[0] = rdev
;
3981 ((void **)skb
->cb
)[1] = hdr
;
3982 ((void **)skb
->cb
)[2] = data
;
3991 struct sk_buff
*cfg80211_testmode_alloc_reply_skb(struct wiphy
*wiphy
,
3994 struct cfg80211_registered_device
*rdev
= wiphy_to_dev(wiphy
);
3996 if (WARN_ON(!rdev
->testmode_info
))
3999 return __cfg80211_testmode_alloc_skb(rdev
, approxlen
,
4000 rdev
->testmode_info
->snd_pid
,
4001 rdev
->testmode_info
->snd_seq
,
4004 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb
);
4006 int cfg80211_testmode_reply(struct sk_buff
*skb
)
4008 struct cfg80211_registered_device
*rdev
= ((void **)skb
->cb
)[0];
4009 void *hdr
= ((void **)skb
->cb
)[1];
4010 struct nlattr
*data
= ((void **)skb
->cb
)[2];
4012 if (WARN_ON(!rdev
->testmode_info
)) {
4017 nla_nest_end(skb
, data
);
4018 genlmsg_end(skb
, hdr
);
4019 return genlmsg_reply(skb
, rdev
->testmode_info
);
4021 EXPORT_SYMBOL(cfg80211_testmode_reply
);
4023 struct sk_buff
*cfg80211_testmode_alloc_event_skb(struct wiphy
*wiphy
,
4024 int approxlen
, gfp_t gfp
)
4026 struct cfg80211_registered_device
*rdev
= wiphy_to_dev(wiphy
);
4028 return __cfg80211_testmode_alloc_skb(rdev
, approxlen
, 0, 0, gfp
);
4030 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb
);
4032 void cfg80211_testmode_event(struct sk_buff
*skb
, gfp_t gfp
)
4034 void *hdr
= ((void **)skb
->cb
)[1];
4035 struct nlattr
*data
= ((void **)skb
->cb
)[2];
4037 nla_nest_end(skb
, data
);
4038 genlmsg_end(skb
, hdr
);
4039 genlmsg_multicast(skb
, 0, nl80211_testmode_mcgrp
.id
, gfp
);
4041 EXPORT_SYMBOL(cfg80211_testmode_event
);
4044 static int nl80211_connect(struct sk_buff
*skb
, struct genl_info
*info
)
4046 struct cfg80211_registered_device
*rdev
;
4047 struct net_device
*dev
;
4048 struct cfg80211_connect_params connect
;
4049 struct wiphy
*wiphy
;
4050 struct cfg80211_cached_keys
*connkeys
= NULL
;
4053 memset(&connect
, 0, sizeof(connect
));
4055 if (!is_valid_ie_attr(info
->attrs
[NL80211_ATTR_IE
]))
4058 if (!info
->attrs
[NL80211_ATTR_SSID
] ||
4059 !nla_len(info
->attrs
[NL80211_ATTR_SSID
]))
4062 if (info
->attrs
[NL80211_ATTR_AUTH_TYPE
]) {
4064 nla_get_u32(info
->attrs
[NL80211_ATTR_AUTH_TYPE
]);
4065 if (!nl80211_valid_auth_type(connect
.auth_type
))
4068 connect
.auth_type
= NL80211_AUTHTYPE_AUTOMATIC
;
4070 connect
.privacy
= info
->attrs
[NL80211_ATTR_PRIVACY
];
4072 err
= nl80211_crypto_settings(info
, &connect
.crypto
,
4073 NL80211_MAX_NR_CIPHER_SUITES
);
4078 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
4082 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_STATION
) {
4087 if (!netif_running(dev
)) {
4092 wiphy
= &rdev
->wiphy
;
4094 if (info
->attrs
[NL80211_ATTR_MAC
])
4095 connect
.bssid
= nla_data(info
->attrs
[NL80211_ATTR_MAC
]);
4096 connect
.ssid
= nla_data(info
->attrs
[NL80211_ATTR_SSID
]);
4097 connect
.ssid_len
= nla_len(info
->attrs
[NL80211_ATTR_SSID
]);
4099 if (info
->attrs
[NL80211_ATTR_IE
]) {
4100 connect
.ie
= nla_data(info
->attrs
[NL80211_ATTR_IE
]);
4101 connect
.ie_len
= nla_len(info
->attrs
[NL80211_ATTR_IE
]);
4104 if (info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]) {
4106 ieee80211_get_channel(wiphy
,
4107 nla_get_u32(info
->attrs
[NL80211_ATTR_WIPHY_FREQ
]));
4108 if (!connect
.channel
||
4109 connect
.channel
->flags
& IEEE80211_CHAN_DISABLED
) {
4115 if (connect
.privacy
&& info
->attrs
[NL80211_ATTR_KEYS
]) {
4116 connkeys
= nl80211_parse_connkeys(rdev
,
4117 info
->attrs
[NL80211_ATTR_KEYS
]);
4118 if (IS_ERR(connkeys
)) {
4119 err
= PTR_ERR(connkeys
);
4125 err
= cfg80211_connect(rdev
, dev
, &connect
, connkeys
);
4128 cfg80211_unlock_rdev(rdev
);
4137 static int nl80211_disconnect(struct sk_buff
*skb
, struct genl_info
*info
)
4139 struct cfg80211_registered_device
*rdev
;
4140 struct net_device
*dev
;
4144 if (!info
->attrs
[NL80211_ATTR_REASON_CODE
])
4145 reason
= WLAN_REASON_DEAUTH_LEAVING
;
4147 reason
= nla_get_u16(info
->attrs
[NL80211_ATTR_REASON_CODE
]);
4154 err
= get_rdev_dev_by_info_ifindex(info
, &rdev
, &dev
);
4158 if (dev
->ieee80211_ptr
->iftype
!= NL80211_IFTYPE_STATION
) {
4163 if (!netif_running(dev
)) {
4168 err
= cfg80211_disconnect(rdev
, dev
, reason
, true);
4171 cfg80211_unlock_rdev(rdev
);
4178 static int nl80211_wiphy_netns(struct sk_buff
*skb
, struct genl_info
*info
)
4180 struct cfg80211_registered_device
*rdev
;
4185 if (!info
->attrs
[NL80211_ATTR_PID
])
4188 pid
= nla_get_u32(info
->attrs
[NL80211_ATTR_PID
]);
4192 rdev
= cfg80211_get_dev_from_info(info
);
4194 err
= PTR_ERR(rdev
);
4198 net
= get_net_ns_by_pid(pid
);
4206 /* check if anything to do */
4207 if (net_eq(wiphy_net(&rdev
->wiphy
), net
))
4210 err
= cfg80211_switch_netns(rdev
, net
);
4214 cfg80211_unlock_rdev(rdev
);
4220 static struct genl_ops nl80211_ops
[] = {
4222 .cmd
= NL80211_CMD_GET_WIPHY
,
4223 .doit
= nl80211_get_wiphy
,
4224 .dumpit
= nl80211_dump_wiphy
,
4225 .policy
= nl80211_policy
,
4226 /* can be retrieved by unprivileged users */
4229 .cmd
= NL80211_CMD_SET_WIPHY
,
4230 .doit
= nl80211_set_wiphy
,
4231 .policy
= nl80211_policy
,
4232 .flags
= GENL_ADMIN_PERM
,
4235 .cmd
= NL80211_CMD_GET_INTERFACE
,
4236 .doit
= nl80211_get_interface
,
4237 .dumpit
= nl80211_dump_interface
,
4238 .policy
= nl80211_policy
,
4239 /* can be retrieved by unprivileged users */
4242 .cmd
= NL80211_CMD_SET_INTERFACE
,
4243 .doit
= nl80211_set_interface
,
4244 .policy
= nl80211_policy
,
4245 .flags
= GENL_ADMIN_PERM
,
4248 .cmd
= NL80211_CMD_NEW_INTERFACE
,
4249 .doit
= nl80211_new_interface
,
4250 .policy
= nl80211_policy
,
4251 .flags
= GENL_ADMIN_PERM
,
4254 .cmd
= NL80211_CMD_DEL_INTERFACE
,
4255 .doit
= nl80211_del_interface
,
4256 .policy
= nl80211_policy
,
4257 .flags
= GENL_ADMIN_PERM
,
4260 .cmd
= NL80211_CMD_GET_KEY
,
4261 .doit
= nl80211_get_key
,
4262 .policy
= nl80211_policy
,
4263 .flags
= GENL_ADMIN_PERM
,
4266 .cmd
= NL80211_CMD_SET_KEY
,
4267 .doit
= nl80211_set_key
,
4268 .policy
= nl80211_policy
,
4269 .flags
= GENL_ADMIN_PERM
,
4272 .cmd
= NL80211_CMD_NEW_KEY
,
4273 .doit
= nl80211_new_key
,
4274 .policy
= nl80211_policy
,
4275 .flags
= GENL_ADMIN_PERM
,
4278 .cmd
= NL80211_CMD_DEL_KEY
,
4279 .doit
= nl80211_del_key
,
4280 .policy
= nl80211_policy
,
4281 .flags
= GENL_ADMIN_PERM
,
4284 .cmd
= NL80211_CMD_SET_BEACON
,
4285 .policy
= nl80211_policy
,
4286 .flags
= GENL_ADMIN_PERM
,
4287 .doit
= nl80211_addset_beacon
,
4290 .cmd
= NL80211_CMD_NEW_BEACON
,
4291 .policy
= nl80211_policy
,
4292 .flags
= GENL_ADMIN_PERM
,
4293 .doit
= nl80211_addset_beacon
,
4296 .cmd
= NL80211_CMD_DEL_BEACON
,
4297 .policy
= nl80211_policy
,
4298 .flags
= GENL_ADMIN_PERM
,
4299 .doit
= nl80211_del_beacon
,
4302 .cmd
= NL80211_CMD_GET_STATION
,
4303 .doit
= nl80211_get_station
,
4304 .dumpit
= nl80211_dump_station
,
4305 .policy
= nl80211_policy
,
4308 .cmd
= NL80211_CMD_SET_STATION
,
4309 .doit
= nl80211_set_station
,
4310 .policy
= nl80211_policy
,
4311 .flags
= GENL_ADMIN_PERM
,
4314 .cmd
= NL80211_CMD_NEW_STATION
,
4315 .doit
= nl80211_new_station
,
4316 .policy
= nl80211_policy
,
4317 .flags
= GENL_ADMIN_PERM
,
4320 .cmd
= NL80211_CMD_DEL_STATION
,
4321 .doit
= nl80211_del_station
,
4322 .policy
= nl80211_policy
,
4323 .flags
= GENL_ADMIN_PERM
,
4326 .cmd
= NL80211_CMD_GET_MPATH
,
4327 .doit
= nl80211_get_mpath
,
4328 .dumpit
= nl80211_dump_mpath
,
4329 .policy
= nl80211_policy
,
4330 .flags
= GENL_ADMIN_PERM
,
4333 .cmd
= NL80211_CMD_SET_MPATH
,
4334 .doit
= nl80211_set_mpath
,
4335 .policy
= nl80211_policy
,
4336 .flags
= GENL_ADMIN_PERM
,
4339 .cmd
= NL80211_CMD_NEW_MPATH
,
4340 .doit
= nl80211_new_mpath
,
4341 .policy
= nl80211_policy
,
4342 .flags
= GENL_ADMIN_PERM
,
4345 .cmd
= NL80211_CMD_DEL_MPATH
,
4346 .doit
= nl80211_del_mpath
,
4347 .policy
= nl80211_policy
,
4348 .flags
= GENL_ADMIN_PERM
,
4351 .cmd
= NL80211_CMD_SET_BSS
,
4352 .doit
= nl80211_set_bss
,
4353 .policy
= nl80211_policy
,
4354 .flags
= GENL_ADMIN_PERM
,
4357 .cmd
= NL80211_CMD_GET_REG
,
4358 .doit
= nl80211_get_reg
,
4359 .policy
= nl80211_policy
,
4360 /* can be retrieved by unprivileged users */
4363 .cmd
= NL80211_CMD_SET_REG
,
4364 .doit
= nl80211_set_reg
,
4365 .policy
= nl80211_policy
,
4366 .flags
= GENL_ADMIN_PERM
,
4369 .cmd
= NL80211_CMD_REQ_SET_REG
,
4370 .doit
= nl80211_req_set_reg
,
4371 .policy
= nl80211_policy
,
4372 .flags
= GENL_ADMIN_PERM
,
4375 .cmd
= NL80211_CMD_GET_MESH_PARAMS
,
4376 .doit
= nl80211_get_mesh_params
,
4377 .policy
= nl80211_policy
,
4378 /* can be retrieved by unprivileged users */
4381 .cmd
= NL80211_CMD_SET_MESH_PARAMS
,
4382 .doit
= nl80211_set_mesh_params
,
4383 .policy
= nl80211_policy
,
4384 .flags
= GENL_ADMIN_PERM
,
4387 .cmd
= NL80211_CMD_TRIGGER_SCAN
,
4388 .doit
= nl80211_trigger_scan
,
4389 .policy
= nl80211_policy
,
4390 .flags
= GENL_ADMIN_PERM
,
4393 .cmd
= NL80211_CMD_GET_SCAN
,
4394 .policy
= nl80211_policy
,
4395 .dumpit
= nl80211_dump_scan
,
4398 .cmd
= NL80211_CMD_AUTHENTICATE
,
4399 .doit
= nl80211_authenticate
,
4400 .policy
= nl80211_policy
,
4401 .flags
= GENL_ADMIN_PERM
,
4404 .cmd
= NL80211_CMD_ASSOCIATE
,
4405 .doit
= nl80211_associate
,
4406 .policy
= nl80211_policy
,
4407 .flags
= GENL_ADMIN_PERM
,
4410 .cmd
= NL80211_CMD_DEAUTHENTICATE
,
4411 .doit
= nl80211_deauthenticate
,
4412 .policy
= nl80211_policy
,
4413 .flags
= GENL_ADMIN_PERM
,
4416 .cmd
= NL80211_CMD_DISASSOCIATE
,
4417 .doit
= nl80211_disassociate
,
4418 .policy
= nl80211_policy
,
4419 .flags
= GENL_ADMIN_PERM
,
4422 .cmd
= NL80211_CMD_JOIN_IBSS
,
4423 .doit
= nl80211_join_ibss
,
4424 .policy
= nl80211_policy
,
4425 .flags
= GENL_ADMIN_PERM
,
4428 .cmd
= NL80211_CMD_LEAVE_IBSS
,
4429 .doit
= nl80211_leave_ibss
,
4430 .policy
= nl80211_policy
,
4431 .flags
= GENL_ADMIN_PERM
,
4433 #ifdef CONFIG_NL80211_TESTMODE
4435 .cmd
= NL80211_CMD_TESTMODE
,
4436 .doit
= nl80211_testmode_do
,
4437 .policy
= nl80211_policy
,
4438 .flags
= GENL_ADMIN_PERM
,
4442 .cmd
= NL80211_CMD_CONNECT
,
4443 .doit
= nl80211_connect
,
4444 .policy
= nl80211_policy
,
4445 .flags
= GENL_ADMIN_PERM
,
4448 .cmd
= NL80211_CMD_DISCONNECT
,
4449 .doit
= nl80211_disconnect
,
4450 .policy
= nl80211_policy
,
4451 .flags
= GENL_ADMIN_PERM
,
4454 .cmd
= NL80211_CMD_SET_WIPHY_NETNS
,
4455 .doit
= nl80211_wiphy_netns
,
4456 .policy
= nl80211_policy
,
4457 .flags
= GENL_ADMIN_PERM
,
4460 .cmd
= NL80211_CMD_GET_SURVEY
,
4461 .policy
= nl80211_policy
,
4462 .dumpit
= nl80211_dump_survey
,
4465 static struct genl_multicast_group nl80211_mlme_mcgrp
= {
4469 /* multicast groups */
4470 static struct genl_multicast_group nl80211_config_mcgrp
= {
4473 static struct genl_multicast_group nl80211_scan_mcgrp
= {
4476 static struct genl_multicast_group nl80211_regulatory_mcgrp
= {
4477 .name
= "regulatory",
4480 /* notification functions */
4482 void nl80211_notify_dev_rename(struct cfg80211_registered_device
*rdev
)
4484 struct sk_buff
*msg
;
4486 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
4490 if (nl80211_send_wiphy(msg
, 0, 0, 0, rdev
) < 0) {
4495 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4496 nl80211_config_mcgrp
.id
, GFP_KERNEL
);
4499 static int nl80211_add_scan_req(struct sk_buff
*msg
,
4500 struct cfg80211_registered_device
*rdev
)
4502 struct cfg80211_scan_request
*req
= rdev
->scan_req
;
4503 struct nlattr
*nest
;
4506 ASSERT_RDEV_LOCK(rdev
);
4511 nest
= nla_nest_start(msg
, NL80211_ATTR_SCAN_SSIDS
);
4513 goto nla_put_failure
;
4514 for (i
= 0; i
< req
->n_ssids
; i
++)
4515 NLA_PUT(msg
, i
, req
->ssids
[i
].ssid_len
, req
->ssids
[i
].ssid
);
4516 nla_nest_end(msg
, nest
);
4518 nest
= nla_nest_start(msg
, NL80211_ATTR_SCAN_FREQUENCIES
);
4520 goto nla_put_failure
;
4521 for (i
= 0; i
< req
->n_channels
; i
++)
4522 NLA_PUT_U32(msg
, i
, req
->channels
[i
]->center_freq
);
4523 nla_nest_end(msg
, nest
);
4526 NLA_PUT(msg
, NL80211_ATTR_IE
, req
->ie_len
, req
->ie
);
4533 static int nl80211_send_scan_msg(struct sk_buff
*msg
,
4534 struct cfg80211_registered_device
*rdev
,
4535 struct net_device
*netdev
,
4536 u32 pid
, u32 seq
, int flags
,
4541 hdr
= nl80211hdr_put(msg
, pid
, seq
, flags
, cmd
);
4545 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4546 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4548 /* ignore errors and send incomplete event anyway */
4549 nl80211_add_scan_req(msg
, rdev
);
4551 return genlmsg_end(msg
, hdr
);
4554 genlmsg_cancel(msg
, hdr
);
4558 void nl80211_send_scan_start(struct cfg80211_registered_device
*rdev
,
4559 struct net_device
*netdev
)
4561 struct sk_buff
*msg
;
4563 msg
= nlmsg_new(NLMSG_GOODSIZE
, GFP_KERNEL
);
4567 if (nl80211_send_scan_msg(msg
, rdev
, netdev
, 0, 0, 0,
4568 NL80211_CMD_TRIGGER_SCAN
) < 0) {
4573 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4574 nl80211_scan_mcgrp
.id
, GFP_KERNEL
);
4577 void nl80211_send_scan_done(struct cfg80211_registered_device
*rdev
,
4578 struct net_device
*netdev
)
4580 struct sk_buff
*msg
;
4582 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
4586 if (nl80211_send_scan_msg(msg
, rdev
, netdev
, 0, 0, 0,
4587 NL80211_CMD_NEW_SCAN_RESULTS
) < 0) {
4592 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4593 nl80211_scan_mcgrp
.id
, GFP_KERNEL
);
4596 void nl80211_send_scan_aborted(struct cfg80211_registered_device
*rdev
,
4597 struct net_device
*netdev
)
4599 struct sk_buff
*msg
;
4601 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
4605 if (nl80211_send_scan_msg(msg
, rdev
, netdev
, 0, 0, 0,
4606 NL80211_CMD_SCAN_ABORTED
) < 0) {
4611 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4612 nl80211_scan_mcgrp
.id
, GFP_KERNEL
);
4616 * This can happen on global regulatory changes or device specific settings
4617 * based on custom world regulatory domains.
4619 void nl80211_send_reg_change_event(struct regulatory_request
*request
)
4621 struct sk_buff
*msg
;
4624 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
4628 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_REG_CHANGE
);
4634 /* Userspace can always count this one always being set */
4635 NLA_PUT_U8(msg
, NL80211_ATTR_REG_INITIATOR
, request
->initiator
);
4637 if (request
->alpha2
[0] == '0' && request
->alpha2
[1] == '0')
4638 NLA_PUT_U8(msg
, NL80211_ATTR_REG_TYPE
,
4639 NL80211_REGDOM_TYPE_WORLD
);
4640 else if (request
->alpha2
[0] == '9' && request
->alpha2
[1] == '9')
4641 NLA_PUT_U8(msg
, NL80211_ATTR_REG_TYPE
,
4642 NL80211_REGDOM_TYPE_CUSTOM_WORLD
);
4643 else if ((request
->alpha2
[0] == '9' && request
->alpha2
[1] == '8') ||
4645 NLA_PUT_U8(msg
, NL80211_ATTR_REG_TYPE
,
4646 NL80211_REGDOM_TYPE_INTERSECTION
);
4648 NLA_PUT_U8(msg
, NL80211_ATTR_REG_TYPE
,
4649 NL80211_REGDOM_TYPE_COUNTRY
);
4650 NLA_PUT_STRING(msg
, NL80211_ATTR_REG_ALPHA2
, request
->alpha2
);
4653 if (wiphy_idx_valid(request
->wiphy_idx
))
4654 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, request
->wiphy_idx
);
4656 if (genlmsg_end(msg
, hdr
) < 0) {
4662 genlmsg_multicast_allns(msg
, 0, nl80211_regulatory_mcgrp
.id
,
4669 genlmsg_cancel(msg
, hdr
);
4673 static void nl80211_send_mlme_event(struct cfg80211_registered_device
*rdev
,
4674 struct net_device
*netdev
,
4675 const u8
*buf
, size_t len
,
4676 enum nl80211_commands cmd
, gfp_t gfp
)
4678 struct sk_buff
*msg
;
4681 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, gfp
);
4685 hdr
= nl80211hdr_put(msg
, 0, 0, 0, cmd
);
4691 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4692 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4693 NLA_PUT(msg
, NL80211_ATTR_FRAME
, len
, buf
);
4695 if (genlmsg_end(msg
, hdr
) < 0) {
4700 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4701 nl80211_mlme_mcgrp
.id
, gfp
);
4705 genlmsg_cancel(msg
, hdr
);
4709 void nl80211_send_rx_auth(struct cfg80211_registered_device
*rdev
,
4710 struct net_device
*netdev
, const u8
*buf
,
4711 size_t len
, gfp_t gfp
)
4713 nl80211_send_mlme_event(rdev
, netdev
, buf
, len
,
4714 NL80211_CMD_AUTHENTICATE
, gfp
);
4717 void nl80211_send_rx_assoc(struct cfg80211_registered_device
*rdev
,
4718 struct net_device
*netdev
, const u8
*buf
,
4719 size_t len
, gfp_t gfp
)
4721 nl80211_send_mlme_event(rdev
, netdev
, buf
, len
,
4722 NL80211_CMD_ASSOCIATE
, gfp
);
4725 void nl80211_send_deauth(struct cfg80211_registered_device
*rdev
,
4726 struct net_device
*netdev
, const u8
*buf
,
4727 size_t len
, gfp_t gfp
)
4729 nl80211_send_mlme_event(rdev
, netdev
, buf
, len
,
4730 NL80211_CMD_DEAUTHENTICATE
, gfp
);
4733 void nl80211_send_disassoc(struct cfg80211_registered_device
*rdev
,
4734 struct net_device
*netdev
, const u8
*buf
,
4735 size_t len
, gfp_t gfp
)
4737 nl80211_send_mlme_event(rdev
, netdev
, buf
, len
,
4738 NL80211_CMD_DISASSOCIATE
, gfp
);
4741 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device
*rdev
,
4742 struct net_device
*netdev
, int cmd
,
4743 const u8
*addr
, gfp_t gfp
)
4745 struct sk_buff
*msg
;
4748 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, gfp
);
4752 hdr
= nl80211hdr_put(msg
, 0, 0, 0, cmd
);
4758 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4759 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4760 NLA_PUT_FLAG(msg
, NL80211_ATTR_TIMED_OUT
);
4761 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
4763 if (genlmsg_end(msg
, hdr
) < 0) {
4768 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4769 nl80211_mlme_mcgrp
.id
, gfp
);
4773 genlmsg_cancel(msg
, hdr
);
4777 void nl80211_send_auth_timeout(struct cfg80211_registered_device
*rdev
,
4778 struct net_device
*netdev
, const u8
*addr
,
4781 nl80211_send_mlme_timeout(rdev
, netdev
, NL80211_CMD_AUTHENTICATE
,
4785 void nl80211_send_assoc_timeout(struct cfg80211_registered_device
*rdev
,
4786 struct net_device
*netdev
, const u8
*addr
,
4789 nl80211_send_mlme_timeout(rdev
, netdev
, NL80211_CMD_ASSOCIATE
,
4793 void nl80211_send_connect_result(struct cfg80211_registered_device
*rdev
,
4794 struct net_device
*netdev
, const u8
*bssid
,
4795 const u8
*req_ie
, size_t req_ie_len
,
4796 const u8
*resp_ie
, size_t resp_ie_len
,
4797 u16 status
, gfp_t gfp
)
4799 struct sk_buff
*msg
;
4802 msg
= nlmsg_new(NLMSG_GOODSIZE
, gfp
);
4806 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_CONNECT
);
4812 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4813 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4815 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, bssid
);
4816 NLA_PUT_U16(msg
, NL80211_ATTR_STATUS_CODE
, status
);
4818 NLA_PUT(msg
, NL80211_ATTR_REQ_IE
, req_ie_len
, req_ie
);
4820 NLA_PUT(msg
, NL80211_ATTR_RESP_IE
, resp_ie_len
, resp_ie
);
4822 if (genlmsg_end(msg
, hdr
) < 0) {
4827 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4828 nl80211_mlme_mcgrp
.id
, gfp
);
4832 genlmsg_cancel(msg
, hdr
);
4837 void nl80211_send_roamed(struct cfg80211_registered_device
*rdev
,
4838 struct net_device
*netdev
, const u8
*bssid
,
4839 const u8
*req_ie
, size_t req_ie_len
,
4840 const u8
*resp_ie
, size_t resp_ie_len
, gfp_t gfp
)
4842 struct sk_buff
*msg
;
4845 msg
= nlmsg_new(NLMSG_GOODSIZE
, gfp
);
4849 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_ROAM
);
4855 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4856 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4857 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, bssid
);
4859 NLA_PUT(msg
, NL80211_ATTR_REQ_IE
, req_ie_len
, req_ie
);
4861 NLA_PUT(msg
, NL80211_ATTR_RESP_IE
, resp_ie_len
, resp_ie
);
4863 if (genlmsg_end(msg
, hdr
) < 0) {
4868 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4869 nl80211_mlme_mcgrp
.id
, gfp
);
4873 genlmsg_cancel(msg
, hdr
);
4878 void nl80211_send_disconnected(struct cfg80211_registered_device
*rdev
,
4879 struct net_device
*netdev
, u16 reason
,
4880 const u8
*ie
, size_t ie_len
, bool from_ap
)
4882 struct sk_buff
*msg
;
4885 msg
= nlmsg_new(NLMSG_GOODSIZE
, GFP_KERNEL
);
4889 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_DISCONNECT
);
4895 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4896 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4897 if (from_ap
&& reason
)
4898 NLA_PUT_U16(msg
, NL80211_ATTR_REASON_CODE
, reason
);
4900 NLA_PUT_FLAG(msg
, NL80211_ATTR_DISCONNECTED_BY_AP
);
4902 NLA_PUT(msg
, NL80211_ATTR_IE
, ie_len
, ie
);
4904 if (genlmsg_end(msg
, hdr
) < 0) {
4909 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4910 nl80211_mlme_mcgrp
.id
, GFP_KERNEL
);
4914 genlmsg_cancel(msg
, hdr
);
4919 void nl80211_send_ibss_bssid(struct cfg80211_registered_device
*rdev
,
4920 struct net_device
*netdev
, const u8
*bssid
,
4923 struct sk_buff
*msg
;
4926 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, gfp
);
4930 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_JOIN_IBSS
);
4936 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4937 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4938 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, bssid
);
4940 if (genlmsg_end(msg
, hdr
) < 0) {
4945 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4946 nl80211_mlme_mcgrp
.id
, gfp
);
4950 genlmsg_cancel(msg
, hdr
);
4954 void nl80211_michael_mic_failure(struct cfg80211_registered_device
*rdev
,
4955 struct net_device
*netdev
, const u8
*addr
,
4956 enum nl80211_key_type key_type
, int key_id
,
4957 const u8
*tsc
, gfp_t gfp
)
4959 struct sk_buff
*msg
;
4962 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, gfp
);
4966 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE
);
4972 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, rdev
->wiphy_idx
);
4973 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, netdev
->ifindex
);
4975 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
4976 NLA_PUT_U32(msg
, NL80211_ATTR_KEY_TYPE
, key_type
);
4977 NLA_PUT_U8(msg
, NL80211_ATTR_KEY_IDX
, key_id
);
4979 NLA_PUT(msg
, NL80211_ATTR_KEY_SEQ
, 6, tsc
);
4981 if (genlmsg_end(msg
, hdr
) < 0) {
4986 genlmsg_multicast_netns(wiphy_net(&rdev
->wiphy
), msg
, 0,
4987 nl80211_mlme_mcgrp
.id
, gfp
);
4991 genlmsg_cancel(msg
, hdr
);
4995 void nl80211_send_beacon_hint_event(struct wiphy
*wiphy
,
4996 struct ieee80211_channel
*channel_before
,
4997 struct ieee80211_channel
*channel_after
)
4999 struct sk_buff
*msg
;
5001 struct nlattr
*nl_freq
;
5003 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_ATOMIC
);
5007 hdr
= nl80211hdr_put(msg
, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT
);
5014 * Since we are applying the beacon hint to a wiphy we know its
5015 * wiphy_idx is valid
5017 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY
, get_wiphy_idx(wiphy
));
5020 nl_freq
= nla_nest_start(msg
, NL80211_ATTR_FREQ_BEFORE
);
5022 goto nla_put_failure
;
5023 if (nl80211_msg_put_channel(msg
, channel_before
))
5024 goto nla_put_failure
;
5025 nla_nest_end(msg
, nl_freq
);
5028 nl_freq
= nla_nest_start(msg
, NL80211_ATTR_FREQ_AFTER
);
5030 goto nla_put_failure
;
5031 if (nl80211_msg_put_channel(msg
, channel_after
))
5032 goto nla_put_failure
;
5033 nla_nest_end(msg
, nl_freq
);
5035 if (genlmsg_end(msg
, hdr
) < 0) {
5041 genlmsg_multicast_allns(msg
, 0, nl80211_regulatory_mcgrp
.id
,
5048 genlmsg_cancel(msg
, hdr
);
5052 /* initialisation/exit functions */
5054 int nl80211_init(void)
5058 err
= genl_register_family_with_ops(&nl80211_fam
,
5059 nl80211_ops
, ARRAY_SIZE(nl80211_ops
));
5063 err
= genl_register_mc_group(&nl80211_fam
, &nl80211_config_mcgrp
);
5067 err
= genl_register_mc_group(&nl80211_fam
, &nl80211_scan_mcgrp
);
5071 err
= genl_register_mc_group(&nl80211_fam
, &nl80211_regulatory_mcgrp
);
5075 err
= genl_register_mc_group(&nl80211_fam
, &nl80211_mlme_mcgrp
);
5079 #ifdef CONFIG_NL80211_TESTMODE
5080 err
= genl_register_mc_group(&nl80211_fam
, &nl80211_testmode_mcgrp
);
5087 genl_unregister_family(&nl80211_fam
);
5091 void nl80211_exit(void)
5093 genl_unregister_family(&nl80211_fam
);