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Commit | Line | Data |
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3563f4c5 JB |
1 | #include <net/if.h> |
2 | #include <errno.h> | |
3 | #include <string.h> | |
4 | #include <ctype.h> | |
764fe753 | 5 | #include <stdbool.h> |
3563f4c5 JB |
6 | |
7 | #include <netlink/genl/genl.h> | |
8 | #include <netlink/genl/family.h> | |
9 | #include <netlink/genl/ctrl.h> | |
10 | #include <netlink/msg.h> | |
11 | #include <netlink/attr.h> | |
12 | ||
13 | #include "nl80211.h" | |
14 | #include "iw.h" | |
15 | ||
92a04ecd MH |
16 | #define WLAN_CAPABILITY_ESS (1<<0) |
17 | #define WLAN_CAPABILITY_IBSS (1<<1) | |
18 | #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) | |
19 | #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) | |
20 | #define WLAN_CAPABILITY_PRIVACY (1<<4) | |
21 | #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) | |
22 | #define WLAN_CAPABILITY_PBCC (1<<6) | |
23 | #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) | |
24 | #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) | |
25 | #define WLAN_CAPABILITY_QOS (1<<9) | |
26 | #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) | |
27 | #define WLAN_CAPABILITY_APSD (1<<11) | |
28 | #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) | |
29 | ||
857d966e MH |
30 | static unsigned char wifi_oui[3] = { 0x00, 0x50, 0xf2 }; |
31 | static unsigned char ieee80211_oui[3] = { 0x00, 0x0f, 0xac }; | |
32 | ||
764fe753 JB |
33 | struct scan_params { |
34 | bool unknown; | |
febeb0c0 | 35 | enum print_ie_type type; |
575280cc | 36 | bool show_both_ie_sets; |
764fe753 JB |
37 | }; |
38 | ||
2b690f0a LR |
39 | #define IEEE80211_COUNTRY_EXTENSION_ID 201 |
40 | ||
41 | struct ieee80211_country_ie_triplet { | |
42 | union { | |
43 | struct { | |
44 | __u8 first_channel; | |
45 | __u8 num_channels; | |
46 | __s8 max_power; | |
47 | } __attribute__ ((packed)) chans; | |
48 | struct { | |
49 | __u8 reg_extension_id; | |
50 | __u8 reg_class; | |
51 | __u8 coverage_class; | |
52 | } __attribute__ ((packed)) ext; | |
53 | }; | |
54 | } __attribute__ ((packed)); | |
55 | ||
7c37a24d JB |
56 | static int handle_scan(struct nl80211_state *state, |
57 | struct nl_cb *cb, | |
3563f4c5 JB |
58 | struct nl_msg *msg, |
59 | int argc, char **argv) | |
60 | { | |
559a1713 JB |
61 | struct nl_msg *ssids = NULL, *freqs = NULL; |
62 | char *eptr; | |
3563f4c5 | 63 | int err = -ENOBUFS; |
559a1713 JB |
64 | int i; |
65 | enum { | |
66 | NONE, | |
67 | FREQ, | |
68 | SSID, | |
69 | DONE, | |
70 | } parse = NONE; | |
71 | int freq; | |
72 | bool passive = false, have_ssids = false, have_freqs = false; | |
3563f4c5 JB |
73 | |
74 | ssids = nlmsg_alloc(); | |
75 | if (!ssids) | |
76 | return -ENOMEM; | |
559a1713 JB |
77 | |
78 | freqs = nlmsg_alloc(); | |
79 | if (!freqs) { | |
80 | nlmsg_free(ssids); | |
81 | return -ENOMEM; | |
82 | } | |
83 | ||
84 | for (i = 0; i < argc; i++) { | |
1ddf11eb | 85 | if (parse == NONE && strcmp(argv[i], "freq") == 0) { |
559a1713 JB |
86 | parse = FREQ; |
87 | have_freqs = true; | |
88 | continue; | |
1ddf11eb | 89 | } else if (parse < SSID && strcmp(argv[i], "ssid") == 0) { |
559a1713 JB |
90 | parse = SSID; |
91 | have_ssids = true; | |
92 | continue; | |
1ddf11eb | 93 | } else if (parse < SSID && strcmp(argv[i], "passive") == 0) { |
559a1713 JB |
94 | parse = DONE; |
95 | passive = true; | |
96 | continue; | |
97 | } | |
98 | ||
99 | switch (parse) { | |
100 | case NONE: | |
101 | case DONE: | |
102 | return 1; | |
103 | case FREQ: | |
104 | freq = strtoul(argv[i], &eptr, 10); | |
105 | if (eptr != argv[i] + strlen(argv[i])) | |
106 | return 1; | |
107 | NLA_PUT_U32(freqs, i, freq); | |
108 | break; | |
109 | case SSID: | |
110 | NLA_PUT(ssids, i, strlen(argv[i]), argv[i]); | |
111 | break; | |
112 | } | |
113 | } | |
114 | ||
115 | if (!have_ssids) | |
116 | NLA_PUT(ssids, 1, 0, ""); | |
117 | if (!passive) | |
118 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
119 | ||
120 | if (have_freqs) | |
121 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); | |
3563f4c5 JB |
122 | |
123 | err = 0; | |
124 | nla_put_failure: | |
125 | nlmsg_free(ssids); | |
559a1713 | 126 | nlmsg_free(freqs); |
3563f4c5 JB |
127 | return err; |
128 | } | |
3563f4c5 | 129 | |
857d966e MH |
130 | static void tab_on_first(bool *first) |
131 | { | |
132 | if (!*first) | |
133 | printf("\t"); | |
134 | else | |
135 | *first = false; | |
136 | } | |
137 | ||
83b4934c | 138 | static void print_ssid(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 139 | { |
83b4934c | 140 | printf(" "); |
748f8489 | 141 | print_ssid_escaped(len, data); |
3563f4c5 JB |
142 | printf("\n"); |
143 | } | |
144 | ||
83b4934c | 145 | static void print_supprates(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 JB |
146 | { |
147 | int i; | |
148 | ||
83b4934c | 149 | printf(" "); |
3563f4c5 | 150 | |
83b4934c | 151 | for (i = 0; i < len; i++) { |
3563f4c5 JB |
152 | int r = data[i] & 0x7f; |
153 | printf("%d.%d%s ", r/2, 5*(r&1), data[i] & 0x80 ? "*":""); | |
154 | } | |
155 | printf("\n"); | |
156 | } | |
157 | ||
83b4934c | 158 | static void print_ds(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 159 | { |
83b4934c | 160 | printf(" channel %d\n", data[0]); |
3563f4c5 JB |
161 | } |
162 | ||
2b690f0a | 163 | static const char *country_env_str(char environment) |
b7e8fa37 | 164 | { |
2b690f0a | 165 | switch (environment) { |
b7e8fa37 | 166 | case 'I': |
2b690f0a | 167 | return "Indoor only"; |
b7e8fa37 | 168 | case 'O': |
2b690f0a | 169 | return "Outdoor only"; |
b6c0d634 | 170 | case ' ': |
2b690f0a | 171 | return "Indoor/Outdoor"; |
b6c0d634 | 172 | default: |
2b690f0a | 173 | return "bogus"; |
b7e8fa37 | 174 | } |
2b690f0a LR |
175 | } |
176 | ||
177 | static void print_country(const uint8_t type, uint8_t len, const uint8_t *data) | |
178 | { | |
179 | printf(" %.*s", 2, data); | |
180 | ||
181 | printf("\tEnvironment: %s\n", country_env_str(data[2])); | |
182 | ||
183 | data += 3; | |
184 | len -= 3; | |
185 | ||
186 | if (len < 3) { | |
187 | printf("\t\tNo country IE triplets present\n"); | |
188 | return; | |
189 | } | |
190 | ||
191 | while (len >= 3) { | |
192 | int end_channel; | |
193 | struct ieee80211_country_ie_triplet *triplet = | |
194 | (struct ieee80211_country_ie_triplet *) data; | |
195 | ||
196 | if (triplet->ext.reg_extension_id >= IEEE80211_COUNTRY_EXTENSION_ID) { | |
197 | printf("\t\tExtension ID: %d Regulatory Class: %d Coverage class: %d (up to %dm)\n", | |
198 | triplet->ext.reg_extension_id, | |
199 | triplet->ext.reg_class, | |
200 | triplet->ext.coverage_class, | |
201 | triplet->ext.coverage_class * 450); | |
202 | ||
203 | data += 3; | |
204 | len -= 3; | |
205 | continue; | |
206 | } | |
207 | ||
208 | /* 2 GHz */ | |
209 | if (triplet->chans.first_channel <= 14) | |
210 | end_channel = triplet->chans.first_channel + (triplet->chans.num_channels - 1); | |
211 | else | |
212 | end_channel = triplet->chans.first_channel + (4 * (triplet->chans.num_channels - 1)); | |
213 | ||
214 | printf("\t\tChannels [%d - %d]\n", triplet->chans.first_channel, end_channel); | |
215 | ||
216 | data += 3; | |
217 | len -= 3; | |
218 | } | |
219 | ||
220 | return; | |
b7e8fa37 MH |
221 | } |
222 | ||
d1563a1b MH |
223 | static void print_powerconstraint(const uint8_t type, uint8_t len, const uint8_t *data) |
224 | { | |
225 | printf(" %d dB\n", data[0]); | |
226 | } | |
227 | ||
83b4934c | 228 | static void print_erp(const uint8_t type, uint8_t len, const uint8_t *data) |
fc4d1484 MH |
229 | { |
230 | if (data[0] == 0x00) | |
83b4934c | 231 | printf(" <no flags>"); |
fc4d1484 MH |
232 | if (data[0] & 0x01) |
233 | printf(" NonERP_Present"); | |
234 | if (data[0] & 0x02) | |
235 | printf(" Use_Protection"); | |
236 | if (data[0] & 0x04) | |
237 | printf(" Barker_Preamble_Mode"); | |
238 | printf("\n"); | |
239 | } | |
240 | ||
83b4934c | 241 | static void print_cipher(const uint8_t *data) |
857d966e MH |
242 | { |
243 | if (memcmp(data, wifi_oui, 3) == 0) { | |
244 | switch (data[3]) { | |
510e0e2f | 245 | case 0: |
857d966e MH |
246 | printf("Use group cipher suite"); |
247 | break; | |
510e0e2f | 248 | case 1: |
857d966e MH |
249 | printf("WEP-40"); |
250 | break; | |
510e0e2f | 251 | case 2: |
857d966e MH |
252 | printf("TKIP"); |
253 | break; | |
510e0e2f | 254 | case 4: |
857d966e MH |
255 | printf("CCMP"); |
256 | break; | |
510e0e2f | 257 | case 5: |
857d966e MH |
258 | printf("WEP-104"); |
259 | break; | |
260 | default: | |
332769c6 | 261 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 262 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
263 | break; |
264 | } | |
265 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
266 | switch (data[3]) { | |
510e0e2f | 267 | case 0: |
857d966e MH |
268 | printf("Use group cipher suite"); |
269 | break; | |
510e0e2f | 270 | case 1: |
857d966e MH |
271 | printf("WEP-40"); |
272 | break; | |
510e0e2f | 273 | case 2: |
857d966e MH |
274 | printf("TKIP"); |
275 | break; | |
510e0e2f | 276 | case 4: |
857d966e MH |
277 | printf("CCMP"); |
278 | break; | |
510e0e2f | 279 | case 5: |
857d966e MH |
280 | printf("WEP-104"); |
281 | break; | |
510e0e2f | 282 | case 6: |
857d966e MH |
283 | printf("AES-128-CMAC"); |
284 | break; | |
285 | default: | |
332769c6 | 286 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 287 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
288 | break; |
289 | } | |
290 | } else | |
332769c6 | 291 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 292 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
293 | } |
294 | ||
83b4934c | 295 | static void print_auth(const uint8_t *data) |
857d966e MH |
296 | { |
297 | if (memcmp(data, wifi_oui, 3) == 0) { | |
298 | switch (data[3]) { | |
510e0e2f | 299 | case 1: |
857d966e MH |
300 | printf("IEEE 802.1X"); |
301 | break; | |
510e0e2f | 302 | case 2: |
857d966e MH |
303 | printf("PSK"); |
304 | break; | |
305 | default: | |
332769c6 | 306 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 307 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
308 | break; |
309 | } | |
310 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
311 | switch (data[3]) { | |
510e0e2f | 312 | case 1: |
857d966e MH |
313 | printf("IEEE 802.1X"); |
314 | break; | |
510e0e2f | 315 | case 2: |
857d966e MH |
316 | printf("PSK"); |
317 | break; | |
0fe1c415 JB |
318 | case 3: |
319 | printf("FT/IEEE 802.1X"); | |
320 | break; | |
321 | case 4: | |
322 | printf("FT/PSK"); | |
323 | break; | |
324 | case 5: | |
325 | printf("IEEE 802.1X/SHA-256"); | |
326 | break; | |
327 | case 6: | |
328 | printf("PSK/SHA-256"); | |
329 | break; | |
857d966e | 330 | default: |
332769c6 | 331 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 332 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
333 | break; |
334 | } | |
335 | } else | |
332769c6 | 336 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 337 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
338 | } |
339 | ||
83b4934c JB |
340 | static void print_rsn_ie(const char *defcipher, const char *defauth, |
341 | uint8_t len, const uint8_t *data) | |
857d966e MH |
342 | { |
343 | bool first = true; | |
344 | __u16 version, count, capa; | |
345 | int i; | |
346 | ||
857d966e MH |
347 | version = data[0] + (data[1] << 8); |
348 | tab_on_first(&first); | |
349 | printf("\t * Version: %d\n", version); | |
350 | ||
351 | data += 2; | |
352 | len -= 2; | |
353 | ||
354 | if (len < 4) { | |
355 | tab_on_first(&first); | |
356 | printf("\t * Group cipher: %s\n", defcipher); | |
357 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
358 | return; | |
359 | } | |
360 | ||
361 | tab_on_first(&first); | |
362 | printf("\t * Group cipher: "); | |
363 | print_cipher(data); | |
364 | printf("\n"); | |
365 | ||
366 | data += 4; | |
367 | len -= 4; | |
368 | ||
369 | if (len < 2) { | |
370 | tab_on_first(&first); | |
371 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
372 | return; | |
373 | } | |
374 | ||
375 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
376 | if (2 + (count * 4) > len) |
377 | goto invalid; | |
378 | ||
857d966e MH |
379 | tab_on_first(&first); |
380 | printf("\t * Pairwise ciphers:"); | |
31d477fb | 381 | for (i = 0; i < count; i++) { |
857d966e MH |
382 | printf(" "); |
383 | print_cipher(data + 2 + (i * 4)); | |
384 | } | |
385 | printf("\n"); | |
386 | ||
387 | data += 2 + (count * 4); | |
388 | len -= 2 + (count * 4); | |
389 | ||
390 | if (len < 2) { | |
391 | tab_on_first(&first); | |
392 | printf("\t * Authentication suites: %s\n", defauth); | |
393 | return; | |
394 | } | |
395 | ||
396 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
397 | if (2 + (count * 4) > len) |
398 | goto invalid; | |
399 | ||
857d966e MH |
400 | tab_on_first(&first); |
401 | printf("\t * Authentication suites:"); | |
83b4934c | 402 | for (i = 0; i < count; i++) { |
857d966e MH |
403 | printf(" "); |
404 | print_auth(data + 2 + (i * 4)); | |
405 | } | |
406 | printf("\n"); | |
407 | ||
408 | data += 2 + (count * 4); | |
409 | len -= 2 + (count * 4); | |
410 | ||
6a4f24e8 JB |
411 | if (len >= 2) { |
412 | capa = data[0] | (data[1] << 8); | |
413 | tab_on_first(&first); | |
cadbe89a JB |
414 | printf("\t * Capabilities:"); |
415 | if (capa & 0x0001) | |
416 | printf(" PreAuth"); | |
417 | if (capa & 0x0002) | |
418 | printf(" NoPairwise"); | |
419 | switch ((capa & 0x000c) >> 2) { | |
420 | case 0: | |
421 | break; | |
422 | case 1: | |
423 | printf(" 2-PTKSA-RC"); | |
424 | break; | |
425 | case 2: | |
426 | printf(" 4-PTKSA-RC"); | |
427 | break; | |
428 | case 3: | |
429 | printf(" 16-PTKSA-RC"); | |
430 | break; | |
431 | } | |
432 | switch ((capa & 0x0030) >> 4) { | |
433 | case 0: | |
434 | break; | |
435 | case 1: | |
436 | printf(" 2-GTKSA-RC"); | |
437 | break; | |
438 | case 2: | |
439 | printf(" 4-GTKSA-RC"); | |
440 | break; | |
441 | case 3: | |
442 | printf(" 16-GTKSA-RC"); | |
443 | break; | |
444 | } | |
445 | if (capa & 0x0040) | |
446 | printf(" MFP-required"); | |
447 | if (capa & 0x0080) | |
448 | printf(" MFP-capable"); | |
449 | if (capa & 0x0200) | |
450 | printf(" Peerkey-enabled"); | |
451 | if (capa & 0x0400) | |
452 | printf(" SPP-AMSDU-capable"); | |
453 | if (capa & 0x0800) | |
454 | printf(" SPP-AMSDU-required"); | |
455 | printf(" (0x%.4x)\n", capa); | |
6a4f24e8 JB |
456 | data += 2; |
457 | len -= 2; | |
458 | } | |
31d477fb | 459 | |
cadbe89a | 460 | invalid: |
31d477fb MH |
461 | if (len != 0) { |
462 | printf("\t\t * bogus tail data (%d):", len); | |
463 | while (len) { | |
464 | printf(" %.2x", *data); | |
465 | data++; | |
466 | len--; | |
467 | } | |
468 | printf("\n"); | |
469 | } | |
857d966e MH |
470 | } |
471 | ||
83b4934c | 472 | static void print_rsn(const uint8_t type, uint8_t len, const uint8_t *data) |
857d966e | 473 | { |
83b4934c | 474 | print_rsn_ie("CCMP", "IEEE 802.1X", len, data); |
857d966e MH |
475 | } |
476 | ||
0c445c24 LR |
477 | static void print_ht_capa(const uint8_t type, uint8_t len, const uint8_t *data) |
478 | { | |
0c445c24 LR |
479 | if (len != 26) { |
480 | printf("\n\t\tHT Capability IE len != expected 26 bytes, skipping parse\n"); | |
481 | return; | |
482 | } | |
357c1a5d | 483 | printf("\n"); |
7ddfb679 JB |
484 | print_ht_capability(data[0] | (data[1] << 8)); |
485 | print_ampdu_length(data[2] & 3); | |
486 | print_ampdu_spacing((data[2] >> 2) & 3); | |
487 | print_ht_mcs(data + 3); | |
0c445c24 LR |
488 | } |
489 | ||
83b4934c | 490 | static void print_capabilities(const uint8_t type, uint8_t len, const uint8_t *data) |
9b880b00 | 491 | { |
31d2d259 JB |
492 | int i, base, bit; |
493 | bool first = true; | |
494 | ||
495 | ||
496 | for (i = 0; i < len; i++) { | |
497 | base = i * 8; | |
498 | ||
499 | for (bit = 0; bit < 8; bit++) { | |
500 | if (!(data[i] & (1 << bit))) | |
501 | continue; | |
502 | ||
503 | if (!first) | |
504 | printf(","); | |
505 | else | |
506 | first = false; | |
507 | ||
508 | switch (bit + base) { | |
509 | case 0: | |
510 | printf(" HT Information Exchange Supported"); | |
511 | break; | |
512 | case 1: | |
513 | printf(" On-demand Beacon"); | |
514 | break; | |
515 | case 2: | |
516 | printf(" Extended Channel Switching"); | |
517 | break; | |
518 | case 3: | |
519 | printf(" Wave Indication"); | |
520 | break; | |
521 | case 4: | |
522 | printf(" PSMP Capability"); | |
523 | break; | |
524 | case 5: | |
525 | printf(" Service Interval Granularity"); | |
526 | break; | |
527 | case 6: | |
528 | printf(" S-PSMP Capability"); | |
529 | break; | |
530 | default: | |
531 | printf(" %d", bit); | |
532 | break; | |
533 | } | |
534 | } | |
535 | } | |
9b880b00 | 536 | |
9b880b00 MH |
537 | printf("\n"); |
538 | } | |
539 | ||
575280cc JM |
540 | static void print_tim(const uint8_t type, uint8_t len, const uint8_t *data) |
541 | { | |
542 | printf(" DTIM Count %u DTIM Period %u Bitmap Control 0x%x " | |
543 | "Bitmap[0] 0x%x", | |
544 | data[0], data[1], data[2], data[3]); | |
545 | if (len - 4) | |
546 | printf(" (+ %u octet%s)", len - 4, len - 4 == 1 ? "" : "s"); | |
547 | printf("\n"); | |
548 | } | |
549 | ||
83b4934c JB |
550 | struct ie_print { |
551 | const char *name; | |
552 | void (*print)(const uint8_t type, uint8_t len, const uint8_t *data); | |
553 | uint8_t minlen, maxlen; | |
febeb0c0 | 554 | uint8_t flags; |
764fe753 JB |
555 | }; |
556 | ||
83b4934c JB |
557 | static void print_ie(const struct ie_print *p, const uint8_t type, |
558 | uint8_t len, const uint8_t *data) | |
4673a894 | 559 | { |
83b4934c JB |
560 | int i; |
561 | ||
562 | if (!p->print) | |
563 | return; | |
564 | ||
565 | printf("\t%s:", p->name); | |
566 | if (len < p->minlen || len > p->maxlen) { | |
567 | if (len > 1) { | |
568 | printf(" <invalid: %d bytes:", len); | |
569 | for (i = 0; i < len; i++) | |
570 | printf(" %.02x", data[i]); | |
571 | printf(">\n"); | |
572 | } else if (len) | |
573 | printf(" <invalid: 1 byte: %.02x>\n", data[0]); | |
574 | else | |
575 | printf(" <invalid: no data>\n"); | |
576 | return; | |
577 | } | |
578 | ||
579 | p->print(type, len, data); | |
580 | } | |
581 | ||
582 | #define PRINT_IGN { \ | |
583 | .name = "IGNORE", \ | |
584 | .print = NULL, \ | |
585 | .minlen = 0, \ | |
586 | .maxlen = 255, \ | |
4673a894 JB |
587 | } |
588 | ||
83b4934c | 589 | static const struct ie_print ieprinters[] = { |
febeb0c0 JB |
590 | [0] = { "SSID", print_ssid, 0, 32, BIT(PRINT_SCAN) | BIT(PRINT_LINK), }, |
591 | [1] = { "Supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
014d581a | 592 | [3] = { "DS Parameter set", print_ds, 1, 1, BIT(PRINT_SCAN), }, |
575280cc | 593 | [5] = { "TIM", print_tim, 4, 255, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
594 | [7] = { "Country", print_country, 3, 255, BIT(PRINT_SCAN), }, |
595 | [32] = { "Power constraint", print_powerconstraint, 1, 1, BIT(PRINT_SCAN), }, | |
596 | [42] = { "ERP", print_erp, 1, 255, BIT(PRINT_SCAN), }, | |
0c445c24 | 597 | [45] = { "HT capabilities", print_ht_capa, 1, 255, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
598 | [48] = { "RSN", print_rsn, 2, 255, BIT(PRINT_SCAN), }, |
599 | [50] = { "Extended supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
600 | [127] = { "Extended capabilities", print_capabilities, 0, 255, BIT(PRINT_SCAN), }, | |
83b4934c JB |
601 | }; |
602 | ||
603 | static void print_wifi_wpa(const uint8_t type, uint8_t len, const uint8_t *data) | |
604 | { | |
605 | print_rsn_ie("TKIP", "IEEE 802.1X", len, data); | |
606 | } | |
607 | ||
1cab57eb JB |
608 | static bool print_wifi_wmm_param(const uint8_t *data, uint8_t len) |
609 | { | |
610 | int i; | |
611 | static const char *aci_tbl[] = { "BE", "BK", "VI", "VO" }; | |
612 | ||
613 | if (len < 19) | |
614 | goto invalid; | |
615 | ||
616 | if (data[0] != 1) { | |
cee4fe20 | 617 | printf("Parameter: not version 1: "); |
1cab57eb JB |
618 | return false; |
619 | } | |
620 | ||
89ea706f | 621 | printf("\t * Parameter version 1"); |
1cab57eb JB |
622 | |
623 | data++; | |
624 | ||
625 | if (data[0] & 0x80) | |
89ea706f | 626 | printf("\n\t\t * u-APSD"); |
1cab57eb JB |
627 | |
628 | data += 2; | |
629 | ||
630 | for (i = 0; i < 4; i++) { | |
89ea706f | 631 | printf("\n\t\t * %s:", aci_tbl[(data[0] >> 5) & 3]); |
1cab57eb JB |
632 | if (data[4] & 0x10) |
633 | printf(" acm"); | |
634 | printf(" CW %d-%d", (1 << (data[1] & 0xf)) - 1, | |
635 | (1 << (data[1] >> 4)) - 1); | |
a2a4c265 | 636 | printf(", AIFSN %d", data[0] & 0xf); |
1cab57eb | 637 | if (data[2] | data[3]) |
cee4fe20 | 638 | printf(", TXOP %d usec", (data[2] + (data[3] << 8)) * 32); |
1cab57eb JB |
639 | data += 4; |
640 | } | |
641 | ||
642 | printf("\n"); | |
643 | return true; | |
644 | ||
645 | invalid: | |
646 | printf("invalid: "); | |
647 | return false; | |
648 | } | |
649 | ||
83b4934c | 650 | static void print_wifi_wmm(const uint8_t type, uint8_t len, const uint8_t *data) |
6ff0c93a MH |
651 | { |
652 | int i; | |
653 | ||
6ff0c93a MH |
654 | switch (data[0]) { |
655 | case 0x00: | |
83b4934c | 656 | printf(" information:"); |
6ff0c93a MH |
657 | break; |
658 | case 0x01: | |
1cab57eb JB |
659 | if (print_wifi_wmm_param(data + 1, len - 1)) |
660 | return; | |
6ff0c93a MH |
661 | break; |
662 | default: | |
83b4934c | 663 | printf(" type %d:", data[0]); |
6ff0c93a MH |
664 | break; |
665 | } | |
666 | ||
1cab57eb JB |
667 | for(i = 1; i < len; i++) |
668 | printf(" %.02x", data[i]); | |
6ff0c93a MH |
669 | printf("\n"); |
670 | } | |
671 | ||
83b4934c | 672 | static void print_wifi_wps(const uint8_t type, uint8_t len, const uint8_t *data) |
4673a894 JB |
673 | { |
674 | bool first = true; | |
675 | __u16 subtype, sublen; | |
676 | ||
4673a894 JB |
677 | while (len >= 4) { |
678 | subtype = (data[0] << 8) + data[1]; | |
679 | sublen = (data[2] << 8) + data[3]; | |
680 | if (sublen > len) | |
681 | break; | |
682 | ||
683 | switch (subtype) { | |
684 | case 0x104a: | |
685 | tab_on_first(&first); | |
dffc6750 | 686 | printf("\t * Version: %d.%d\n", data[4] >> 4, data[4] & 0xF); |
4673a894 JB |
687 | break; |
688 | case 0x1011: | |
689 | tab_on_first(&first); | |
690 | printf("\t * Device name: %.*s\n", sublen, data + 4); | |
691 | break; | |
692 | case 0x1021: | |
693 | tab_on_first(&first); | |
694 | printf("\t * Manufacturer: %.*s\n", sublen, data + 4); | |
695 | break; | |
696 | case 0x1023: | |
697 | tab_on_first(&first); | |
698 | printf("\t * Model: %.*s\n", sublen, data + 4); | |
699 | break; | |
7ee5a865 | 700 | case 0x1057: { |
fe31a22e | 701 | __u8 val = data[4]; |
7ee5a865 | 702 | tab_on_first(&first); |
fe31a22e | 703 | printf("\t * AP setup locked: 0x%.2x\n", val); |
7ee5a865 JB |
704 | break; |
705 | } | |
4673a894 JB |
706 | case 0x1008: { |
707 | __u16 meth = (data[4] << 8) + data[5]; | |
708 | bool comma = false; | |
709 | tab_on_first(&first); | |
710 | printf("\t * Config methods:"); | |
711 | #define T(bit, name) do { \ | |
712 | if (meth & (1<<bit)) { \ | |
713 | if (comma) \ | |
714 | printf(","); \ | |
715 | comma = true; \ | |
716 | printf(" " name); \ | |
717 | } } while (0) | |
718 | T(0, "USB"); | |
719 | T(1, "Ethernet"); | |
720 | T(2, "Label"); | |
721 | T(3, "Display"); | |
722 | T(4, "Ext. NFC"); | |
723 | T(5, "Int. NFC"); | |
724 | T(6, "NFC Intf."); | |
725 | T(7, "PBC"); | |
726 | T(8, "Keypad"); | |
727 | printf("\n"); | |
728 | break; | |
729 | #undef T | |
730 | } | |
731 | default: | |
732 | break; | |
733 | } | |
734 | ||
735 | data += sublen + 4; | |
736 | len -= sublen + 4; | |
737 | } | |
738 | ||
739 | if (len != 0) { | |
740 | printf("\t\t * bogus tail data (%d):", len); | |
741 | while (len) { | |
742 | printf(" %.2x", *data); | |
743 | data++; | |
744 | len--; | |
745 | } | |
746 | printf("\n"); | |
747 | } | |
748 | } | |
749 | ||
83b4934c | 750 | static const struct ie_print wifiprinters[] = { |
febeb0c0 JB |
751 | [1] = { "WPA", print_wifi_wpa, 2, 255, BIT(PRINT_SCAN), }, |
752 | [2] = { "WMM", print_wifi_wmm, 1, 255, BIT(PRINT_SCAN), }, | |
753 | [4] = { "WPS", print_wifi_wps, 0, 255, BIT(PRINT_SCAN), }, | |
4673a894 JB |
754 | }; |
755 | ||
764fe753 | 756 | static void print_vendor(unsigned char len, unsigned char *data, |
febeb0c0 | 757 | bool unknown, enum print_ie_type ptype) |
3563f4c5 JB |
758 | { |
759 | int i; | |
760 | ||
fbf80af5 | 761 | if (len < 3) { |
4673a894 | 762 | printf("\tVendor specific: <too short> data:"); |
fbf80af5 JB |
763 | for(i = 0; i < len; i++) |
764 | printf(" %.02x", data[i]); | |
765 | printf("\n"); | |
766 | return; | |
767 | } | |
768 | ||
857d966e | 769 | if (len >= 4 && memcmp(data, wifi_oui, 3) == 0) { |
febeb0c0 JB |
770 | if (data[3] < ARRAY_SIZE(wifiprinters) && |
771 | wifiprinters[data[3]].name && | |
772 | wifiprinters[data[3]].flags & BIT(ptype)) { | |
83b4934c JB |
773 | print_ie(&wifiprinters[data[3]], data[3], len - 4, data + 4); |
774 | return; | |
775 | } | |
febeb0c0 | 776 | if (!unknown) |
4673a894 | 777 | return; |
857d966e | 778 | printf("\tWiFi OUI %#.2x, data:", data[3]); |
4673a894 JB |
779 | for(i = 0; i < len - 4; i++) |
780 | printf(" %.02x", data[i + 4]); | |
781 | printf("\n"); | |
782 | return; | |
783 | } | |
784 | ||
febeb0c0 | 785 | if (!unknown) |
764fe753 JB |
786 | return; |
787 | ||
fbf80af5 | 788 | printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data:", |
3563f4c5 | 789 | data[0], data[1], data[2]); |
fbf80af5 JB |
790 | for (i = 3; i < len; i++) |
791 | printf(" %.2x", data[i]); | |
3563f4c5 JB |
792 | printf("\n"); |
793 | } | |
794 | ||
febeb0c0 JB |
795 | void print_ies(unsigned char *ie, int ielen, bool unknown, |
796 | enum print_ie_type ptype) | |
3563f4c5 JB |
797 | { |
798 | while (ielen >= 2 && ielen >= ie[1]) { | |
febeb0c0 JB |
799 | if (ie[0] < ARRAY_SIZE(ieprinters) && |
800 | ieprinters[ie[0]].name && | |
801 | ieprinters[ie[0]].flags & BIT(ptype)) { | |
83b4934c | 802 | print_ie(&ieprinters[ie[0]], ie[0], ie[1], ie + 2); |
764fe753 | 803 | } else if (ie[0] == 221 /* vendor */) { |
febeb0c0 JB |
804 | print_vendor(ie[1], ie + 2, unknown, ptype); |
805 | } else if (unknown) { | |
3563f4c5 JB |
806 | int i; |
807 | ||
8086b700 | 808 | printf("\tUnknown IE (%d):", ie[0]); |
3563f4c5 | 809 | for (i=0; i<ie[1]; i++) |
8086b700 | 810 | printf(" %.2x", ie[2+i]); |
3563f4c5 JB |
811 | printf("\n"); |
812 | } | |
813 | ielen -= ie[1] + 2; | |
814 | ie += ie[1] + 2; | |
815 | } | |
816 | } | |
817 | ||
818 | static int print_bss_handler(struct nl_msg *msg, void *arg) | |
819 | { | |
820 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
821 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
822 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
823 | char mac_addr[20], dev[20]; | |
824 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
825 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
826 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
827 | [NL80211_BSS_BSSID] = { }, | |
828 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
829 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
830 | [NL80211_BSS_INFORMATION_ELEMENTS] = { }, | |
f2e17e1f JB |
831 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, |
832 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
a56117a6 | 833 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
c04a78df | 834 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
575280cc | 835 | [NL80211_BSS_BEACON_IES] = { }, |
3563f4c5 | 836 | }; |
febeb0c0 | 837 | struct scan_params *params = arg; |
1c5bcd9c | 838 | int show = params->show_both_ie_sets ? 2 : 1; |
3563f4c5 JB |
839 | |
840 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
841 | genlmsg_attrlen(gnlh, 0), NULL); | |
842 | ||
843 | if (!tb[NL80211_ATTR_BSS]) { | |
5fe70c0e | 844 | fprintf(stderr, "bss info missing!\n"); |
3563f4c5 JB |
845 | return NL_SKIP; |
846 | } | |
847 | if (nla_parse_nested(bss, NL80211_BSS_MAX, | |
848 | tb[NL80211_ATTR_BSS], | |
849 | bss_policy)) { | |
5fe70c0e | 850 | fprintf(stderr, "failed to parse nested attributes!\n"); |
3563f4c5 JB |
851 | return NL_SKIP; |
852 | } | |
853 | ||
854 | if (!bss[NL80211_BSS_BSSID]) | |
855 | return NL_SKIP; | |
856 | ||
857 | mac_addr_n2a(mac_addr, nla_data(bss[NL80211_BSS_BSSID])); | |
858 | if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), dev); | |
a56117a6 JB |
859 | printf("BSS %s (on %s)", mac_addr, dev); |
860 | ||
861 | if (bss[NL80211_BSS_STATUS]) { | |
862 | switch (nla_get_u32(bss[NL80211_BSS_STATUS])) { | |
863 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
864 | printf(" -- authenticated"); | |
865 | break; | |
866 | case NL80211_BSS_STATUS_ASSOCIATED: | |
867 | printf(" -- associated"); | |
868 | break; | |
869 | case NL80211_BSS_STATUS_IBSS_JOINED: | |
870 | printf(" -- joined"); | |
871 | break; | |
872 | default: | |
873 | printf(" -- unknown status: %d", | |
874 | nla_get_u32(bss[NL80211_BSS_STATUS])); | |
875 | break; | |
876 | } | |
877 | } | |
878 | printf("\n"); | |
3563f4c5 | 879 | |
e7109a8a JB |
880 | if (bss[NL80211_BSS_TSF]) { |
881 | unsigned long long tsf; | |
882 | tsf = (unsigned long long)nla_get_u64(bss[NL80211_BSS_TSF]); | |
883 | printf("\tTSF: %llu usec (%llud, %.2lld:%.2llu:%.2llu)\n", | |
884 | tsf, tsf/1000/1000/60/60/24, (tsf/1000/1000/60/60) % 24, | |
885 | (tsf/1000/1000/60) % 60, (tsf/1000/1000) % 60); | |
886 | } | |
3563f4c5 JB |
887 | if (bss[NL80211_BSS_FREQUENCY]) |
888 | printf("\tfreq: %d\n", | |
889 | nla_get_u32(bss[NL80211_BSS_FREQUENCY])); | |
890 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
891 | printf("\tbeacon interval: %d\n", | |
892 | nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL])); | |
92a04ecd MH |
893 | if (bss[NL80211_BSS_CAPABILITY]) { |
894 | __u16 capa = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
895 | printf("\tcapability:"); | |
896 | if (capa & WLAN_CAPABILITY_ESS) | |
897 | printf(" ESS"); | |
898 | if (capa & WLAN_CAPABILITY_IBSS) | |
899 | printf(" IBSS"); | |
900 | if (capa & WLAN_CAPABILITY_PRIVACY) | |
901 | printf(" Privacy"); | |
902 | if (capa & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
903 | printf(" ShortPreamble"); | |
904 | if (capa & WLAN_CAPABILITY_PBCC) | |
905 | printf(" PBCC"); | |
906 | if (capa & WLAN_CAPABILITY_CHANNEL_AGILITY) | |
907 | printf(" ChannelAgility"); | |
908 | if (capa & WLAN_CAPABILITY_SPECTRUM_MGMT) | |
909 | printf(" SpectrumMgmt"); | |
910 | if (capa & WLAN_CAPABILITY_QOS) | |
911 | printf(" QoS"); | |
912 | if (capa & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
913 | printf(" ShortSlotTime"); | |
914 | if (capa & WLAN_CAPABILITY_APSD) | |
915 | printf(" APSD"); | |
916 | if (capa & WLAN_CAPABILITY_DSSS_OFDM) | |
917 | printf(" DSSS-OFDM"); | |
918 | printf(" (0x%.4x)\n", capa); | |
919 | } | |
f2e17e1f JB |
920 | if (bss[NL80211_BSS_SIGNAL_MBM]) { |
921 | int s = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); | |
922 | printf("\tsignal: %d.%.2d dBm\n", s/100, s%100); | |
923 | } | |
924 | if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
925 | unsigned char s = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
926 | printf("\tsignal: %d/100\n", s); | |
927 | } | |
c04a78df HS |
928 | if (bss[NL80211_BSS_SEEN_MS_AGO]) { |
929 | int age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
930 | printf("\tlast seen: %d ms ago\n", age); | |
931 | } | |
1c5bcd9c JB |
932 | |
933 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS] && show--) { | |
575280cc JM |
934 | if (bss[NL80211_BSS_BEACON_IES]) |
935 | printf("\tInformation elements from Probe Response " | |
936 | "frame:\n"); | |
3563f4c5 | 937 | print_ies(nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
764fe753 | 938 | nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
febeb0c0 | 939 | params->unknown, params->type); |
575280cc | 940 | } |
1c5bcd9c | 941 | if (bss[NL80211_BSS_BEACON_IES] && show--) { |
575280cc JM |
942 | printf("\tInformation elements from Beacon frame:\n"); |
943 | print_ies(nla_data(bss[NL80211_BSS_BEACON_IES]), | |
944 | nla_len(bss[NL80211_BSS_BEACON_IES]), | |
945 | params->unknown, params->type); | |
946 | } | |
3563f4c5 JB |
947 | |
948 | return NL_SKIP; | |
949 | } | |
950 | ||
764fe753 | 951 | static struct scan_params scan_params; |
3563f4c5 | 952 | |
7c37a24d JB |
953 | static int handle_scan_dump(struct nl80211_state *state, |
954 | struct nl_cb *cb, | |
3563f4c5 JB |
955 | struct nl_msg *msg, |
956 | int argc, char **argv) | |
957 | { | |
764fe753 JB |
958 | if (argc > 1) |
959 | return 1; | |
960 | ||
1c5bcd9c JB |
961 | memset(&scan_params, 0, sizeof(scan_params)); |
962 | ||
764fe753 JB |
963 | if (argc == 1 && !strcmp(argv[0], "-u")) |
964 | scan_params.unknown = true; | |
575280cc JM |
965 | else if (argc == 1 && !strcmp(argv[0], "-b")) |
966 | scan_params.show_both_ie_sets = true; | |
764fe753 | 967 | |
febeb0c0 JB |
968 | scan_params.type = PRINT_SCAN; |
969 | ||
764fe753 JB |
970 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_bss_handler, |
971 | &scan_params); | |
3563f4c5 JB |
972 | return 0; |
973 | } | |
a5fe4ef2 JB |
974 | |
975 | static int handle_scan_combined(struct nl80211_state *state, | |
976 | struct nl_cb *cb, | |
977 | struct nl_msg *msg, | |
978 | int argc, char **argv) | |
979 | { | |
559a1713 | 980 | char **trig_argv; |
a5fe4ef2 JB |
981 | static char *dump_argv[] = { |
982 | NULL, | |
983 | "scan", | |
984 | "dump", | |
92649eab | 985 | NULL, |
a5fe4ef2 JB |
986 | }; |
987 | static const __u32 cmds[] = { | |
988 | NL80211_CMD_NEW_SCAN_RESULTS, | |
989 | NL80211_CMD_SCAN_ABORTED, | |
990 | }; | |
559a1713 | 991 | int trig_argc, dump_argc, err; |
a5fe4ef2 | 992 | |
559a1713 JB |
993 | if (argc >= 3 && !strcmp(argv[2], "-u")) { |
994 | dump_argc = 4; | |
995 | dump_argv[3] = "-u"; | |
575280cc JM |
996 | } else if (argc >= 3 && !strcmp(argv[2], "-b")) { |
997 | dump_argc = 4; | |
998 | dump_argv[3] = "-b"; | |
559a1713 JB |
999 | } else |
1000 | dump_argc = 3; | |
1001 | ||
1002 | trig_argc = 3 + (argc - 2) + (3 - dump_argc); | |
1003 | trig_argv = calloc(trig_argc, sizeof(*trig_argv)); | |
1004 | if (!trig_argv) | |
1005 | return -ENOMEM; | |
a5fe4ef2 | 1006 | trig_argv[0] = argv[0]; |
559a1713 JB |
1007 | trig_argv[1] = "scan"; |
1008 | trig_argv[2] = "trigger"; | |
1009 | int i; | |
1010 | for (i = 0; i < argc - 2 - (dump_argc - 3); i++) | |
1011 | trig_argv[i + 3] = argv[i + 2 + (dump_argc - 3)]; | |
1012 | err = handle_cmd(state, II_NETDEV, trig_argc, trig_argv); | |
1013 | free(trig_argv); | |
a5fe4ef2 JB |
1014 | if (err) |
1015 | return err; | |
1016 | ||
61725dbe JB |
1017 | /* |
1018 | * WARNING: DO NOT COPY THIS CODE INTO YOUR APPLICATION | |
1019 | * | |
1020 | * This code has a bug, which requires creating a separate | |
1021 | * nl80211 socket to fix: | |
1022 | * It is possible for a NL80211_CMD_NEW_SCAN_RESULTS or | |
1023 | * NL80211_CMD_SCAN_ABORTED message to be sent by the kernel | |
1024 | * before (!) we listen to it, because we only start listening | |
1025 | * after we send our scan request. | |
1026 | * | |
1027 | * Doing it the other way around has a race condition as well, | |
1028 | * if you first open the events socket you may get a notification | |
1029 | * for a previous scan. | |
1030 | * | |
1031 | * The only proper way to fix this would be to listen to events | |
1032 | * before sending the command, and for the kernel to send the | |
1033 | * scan request along with the event, so that you can match up | |
1034 | * whether the scan you requested was finished or aborted (this | |
1035 | * may result in processing a scan that another application | |
1036 | * requested, but that doesn't seem to be a problem). | |
1037 | * | |
1038 | * Alas, the kernel doesn't do that (yet). | |
1039 | */ | |
1040 | ||
a5fe4ef2 JB |
1041 | if (listen_events(state, ARRAY_SIZE(cmds), cmds) == |
1042 | NL80211_CMD_SCAN_ABORTED) { | |
1043 | printf("scan aborted!\n"); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | dump_argv[0] = argv[0]; | |
92649eab | 1048 | return handle_cmd(state, II_NETDEV, dump_argc, dump_argv); |
a5fe4ef2 | 1049 | } |
6ca98d28 JB |
1050 | TOPLEVEL(scan, "[-u] [freq <freq>*] [ssid <ssid>*|passive]", 0, 0, |
1051 | CIB_NETDEV, handle_scan_combined, | |
1052 | "Scan on the given frequencies and probe for the given SSIDs\n" | |
1053 | "(or wildcard if not given) unless passive scanning is requested.\n" | |
1054 | "If -u is specified print unknown data in the scan results."); | |
4698bfc2 JB |
1055 | COMMAND(scan, dump, "[-u]", |
1056 | NL80211_CMD_GET_SCAN, NLM_F_DUMP, CIB_NETDEV, handle_scan_dump, | |
1057 | "Dump the current scan results. If -u is specified, print unknown\n" | |
1058 | "data in scan results."); | |
1059 | COMMAND(scan, trigger, "[freq <freq>*] [ssid <ssid>*|passive]", | |
1060 | NL80211_CMD_TRIGGER_SCAN, 0, CIB_NETDEV, handle_scan, | |
1061 | "Trigger a scan on the given frequencies with probing for the given\n" | |
1062 | "SSIDs (or wildcard if not given) unless passive scanning is requested."); |