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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 | ||
3bd60ef1 JB |
30 | static unsigned char ms_oui[3] = { 0x00, 0x50, 0xf2 }; |
31 | static unsigned char ieee80211_oui[3] = { 0x00, 0x0f, 0xac }; | |
9a22374a | 32 | static unsigned char wfa_oui[3] = { 0x50, 0x6f, 0x9a }; |
857d966e | 33 | |
764fe753 JB |
34 | struct scan_params { |
35 | bool unknown; | |
febeb0c0 | 36 | enum print_ie_type type; |
575280cc | 37 | bool show_both_ie_sets; |
764fe753 JB |
38 | }; |
39 | ||
2b690f0a LR |
40 | #define IEEE80211_COUNTRY_EXTENSION_ID 201 |
41 | ||
72725719 JB |
42 | union ieee80211_country_ie_triplet { |
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; | |
2b690f0a LR |
53 | } __attribute__ ((packed)); |
54 | ||
7c37a24d JB |
55 | static int handle_scan(struct nl80211_state *state, |
56 | struct nl_cb *cb, | |
3563f4c5 | 57 | struct nl_msg *msg, |
05514f95 JB |
58 | int argc, char **argv, |
59 | enum id_input id) | |
3563f4c5 | 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, | |
64797a7f | 68 | IES, |
559a1713 JB |
69 | SSID, |
70 | DONE, | |
71 | } parse = NONE; | |
72 | int freq; | |
73 | bool passive = false, have_ssids = false, have_freqs = false; | |
64797a7f JB |
74 | size_t tmp; |
75 | unsigned char *ies; | |
3563f4c5 JB |
76 | |
77 | ssids = nlmsg_alloc(); | |
78 | if (!ssids) | |
79 | return -ENOMEM; | |
559a1713 JB |
80 | |
81 | freqs = nlmsg_alloc(); | |
82 | if (!freqs) { | |
83 | nlmsg_free(ssids); | |
84 | return -ENOMEM; | |
85 | } | |
86 | ||
87 | for (i = 0; i < argc; i++) { | |
559a1713 JB |
88 | switch (parse) { |
89 | case NONE: | |
64797a7f JB |
90 | if (strcmp(argv[i], "freq") == 0) { |
91 | parse = FREQ; | |
92 | have_freqs = true; | |
93 | break; | |
94 | } else if (strcmp(argv[i], "ies") == 0) { | |
95 | parse = IES; | |
96 | break; | |
97 | } else if (strcmp(argv[i], "ssid") == 0) { | |
98 | parse = SSID; | |
99 | have_ssids = true; | |
100 | break; | |
101 | } else if (strcmp(argv[i], "passive") == 0) { | |
102 | parse = DONE; | |
103 | passive = true; | |
104 | break; | |
105 | } | |
559a1713 JB |
106 | case DONE: |
107 | return 1; | |
108 | case FREQ: | |
109 | freq = strtoul(argv[i], &eptr, 10); | |
cc12e895 JB |
110 | if (eptr != argv[i] + strlen(argv[i])) { |
111 | /* failed to parse as number -- maybe a tag? */ | |
112 | i--; | |
113 | parse = NONE; | |
114 | continue; | |
115 | } | |
559a1713 | 116 | NLA_PUT_U32(freqs, i, freq); |
64797a7f JB |
117 | break; |
118 | case IES: | |
119 | ies = parse_hex(argv[i], &tmp); | |
120 | if (!ies) | |
121 | goto nla_put_failure; | |
122 | NLA_PUT(msg, NL80211_ATTR_IE, tmp, ies); | |
123 | free(ies); | |
124 | parse = NONE; | |
559a1713 JB |
125 | break; |
126 | case SSID: | |
127 | NLA_PUT(ssids, i, strlen(argv[i]), argv[i]); | |
128 | break; | |
129 | } | |
130 | } | |
131 | ||
132 | if (!have_ssids) | |
133 | NLA_PUT(ssids, 1, 0, ""); | |
134 | if (!passive) | |
135 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
136 | ||
137 | if (have_freqs) | |
138 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); | |
3563f4c5 JB |
139 | |
140 | err = 0; | |
141 | nla_put_failure: | |
142 | nlmsg_free(ssids); | |
559a1713 | 143 | nlmsg_free(freqs); |
3563f4c5 JB |
144 | return err; |
145 | } | |
3563f4c5 | 146 | |
857d966e MH |
147 | static void tab_on_first(bool *first) |
148 | { | |
149 | if (!*first) | |
150 | printf("\t"); | |
151 | else | |
152 | *first = false; | |
153 | } | |
154 | ||
83b4934c | 155 | static void print_ssid(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 156 | { |
83b4934c | 157 | printf(" "); |
748f8489 | 158 | print_ssid_escaped(len, data); |
3563f4c5 JB |
159 | printf("\n"); |
160 | } | |
161 | ||
1fd19c39 CL |
162 | #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127 |
163 | ||
83b4934c | 164 | static void print_supprates(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 JB |
165 | { |
166 | int i; | |
167 | ||
83b4934c | 168 | printf(" "); |
3563f4c5 | 169 | |
83b4934c | 170 | for (i = 0; i < len; i++) { |
3563f4c5 | 171 | int r = data[i] & 0x7f; |
1fd19c39 | 172 | |
2201d500 | 173 | if (r == BSS_MEMBERSHIP_SELECTOR_HT_PHY && data[i] & 0x80) |
1fd19c39 CL |
174 | printf("HT"); |
175 | else | |
176 | printf("%d.%d", r/2, 5*(r&1)); | |
177 | ||
178 | printf("%s ", data[i] & 0x80 ? "*" : ""); | |
3563f4c5 JB |
179 | } |
180 | printf("\n"); | |
181 | } | |
182 | ||
83b4934c | 183 | static void print_ds(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 184 | { |
83b4934c | 185 | printf(" channel %d\n", data[0]); |
3563f4c5 JB |
186 | } |
187 | ||
2b690f0a | 188 | static const char *country_env_str(char environment) |
b7e8fa37 | 189 | { |
2b690f0a | 190 | switch (environment) { |
b7e8fa37 | 191 | case 'I': |
2b690f0a | 192 | return "Indoor only"; |
b7e8fa37 | 193 | case 'O': |
2b690f0a | 194 | return "Outdoor only"; |
b6c0d634 | 195 | case ' ': |
2b690f0a | 196 | return "Indoor/Outdoor"; |
b6c0d634 | 197 | default: |
2b690f0a | 198 | return "bogus"; |
b7e8fa37 | 199 | } |
2b690f0a LR |
200 | } |
201 | ||
202 | static void print_country(const uint8_t type, uint8_t len, const uint8_t *data) | |
203 | { | |
204 | printf(" %.*s", 2, data); | |
205 | ||
206 | printf("\tEnvironment: %s\n", country_env_str(data[2])); | |
207 | ||
208 | data += 3; | |
209 | len -= 3; | |
210 | ||
211 | if (len < 3) { | |
212 | printf("\t\tNo country IE triplets present\n"); | |
213 | return; | |
214 | } | |
215 | ||
216 | while (len >= 3) { | |
217 | int end_channel; | |
72725719 | 218 | union ieee80211_country_ie_triplet *triplet = (void *) data; |
2b690f0a LR |
219 | |
220 | if (triplet->ext.reg_extension_id >= IEEE80211_COUNTRY_EXTENSION_ID) { | |
221 | printf("\t\tExtension ID: %d Regulatory Class: %d Coverage class: %d (up to %dm)\n", | |
222 | triplet->ext.reg_extension_id, | |
223 | triplet->ext.reg_class, | |
224 | triplet->ext.coverage_class, | |
225 | triplet->ext.coverage_class * 450); | |
226 | ||
227 | data += 3; | |
228 | len -= 3; | |
229 | continue; | |
230 | } | |
231 | ||
232 | /* 2 GHz */ | |
233 | if (triplet->chans.first_channel <= 14) | |
234 | end_channel = triplet->chans.first_channel + (triplet->chans.num_channels - 1); | |
235 | else | |
236 | end_channel = triplet->chans.first_channel + (4 * (triplet->chans.num_channels - 1)); | |
237 | ||
a9859d30 | 238 | printf("\t\tChannels [%d - %d] @ %d dBm\n", triplet->chans.first_channel, end_channel, triplet->chans.max_power); |
2b690f0a LR |
239 | |
240 | data += 3; | |
241 | len -= 3; | |
242 | } | |
243 | ||
244 | return; | |
b7e8fa37 MH |
245 | } |
246 | ||
d1563a1b MH |
247 | static void print_powerconstraint(const uint8_t type, uint8_t len, const uint8_t *data) |
248 | { | |
249 | printf(" %d dB\n", data[0]); | |
250 | } | |
251 | ||
83b4934c | 252 | static void print_erp(const uint8_t type, uint8_t len, const uint8_t *data) |
fc4d1484 MH |
253 | { |
254 | if (data[0] == 0x00) | |
83b4934c | 255 | printf(" <no flags>"); |
fc4d1484 MH |
256 | if (data[0] & 0x01) |
257 | printf(" NonERP_Present"); | |
258 | if (data[0] & 0x02) | |
259 | printf(" Use_Protection"); | |
260 | if (data[0] & 0x04) | |
261 | printf(" Barker_Preamble_Mode"); | |
262 | printf("\n"); | |
263 | } | |
264 | ||
83b4934c | 265 | static void print_cipher(const uint8_t *data) |
857d966e | 266 | { |
3bd60ef1 | 267 | if (memcmp(data, ms_oui, 3) == 0) { |
857d966e | 268 | switch (data[3]) { |
510e0e2f | 269 | case 0: |
857d966e MH |
270 | printf("Use group cipher suite"); |
271 | break; | |
510e0e2f | 272 | case 1: |
857d966e MH |
273 | printf("WEP-40"); |
274 | break; | |
510e0e2f | 275 | case 2: |
857d966e MH |
276 | printf("TKIP"); |
277 | break; | |
510e0e2f | 278 | case 4: |
857d966e MH |
279 | printf("CCMP"); |
280 | break; | |
510e0e2f | 281 | case 5: |
857d966e MH |
282 | printf("WEP-104"); |
283 | break; | |
284 | default: | |
332769c6 | 285 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 286 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
287 | break; |
288 | } | |
289 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
290 | switch (data[3]) { | |
510e0e2f | 291 | case 0: |
857d966e MH |
292 | printf("Use group cipher suite"); |
293 | break; | |
510e0e2f | 294 | case 1: |
857d966e MH |
295 | printf("WEP-40"); |
296 | break; | |
510e0e2f | 297 | case 2: |
857d966e MH |
298 | printf("TKIP"); |
299 | break; | |
510e0e2f | 300 | case 4: |
857d966e MH |
301 | printf("CCMP"); |
302 | break; | |
510e0e2f | 303 | case 5: |
857d966e MH |
304 | printf("WEP-104"); |
305 | break; | |
510e0e2f | 306 | case 6: |
857d966e MH |
307 | printf("AES-128-CMAC"); |
308 | break; | |
a8b3da9d VK |
309 | case 8: |
310 | printf("GCMP"); | |
311 | break; | |
857d966e | 312 | default: |
332769c6 | 313 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 314 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
315 | break; |
316 | } | |
317 | } else | |
332769c6 | 318 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 319 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
320 | } |
321 | ||
83b4934c | 322 | static void print_auth(const uint8_t *data) |
857d966e | 323 | { |
3bd60ef1 | 324 | if (memcmp(data, ms_oui, 3) == 0) { |
857d966e | 325 | switch (data[3]) { |
510e0e2f | 326 | case 1: |
857d966e MH |
327 | printf("IEEE 802.1X"); |
328 | break; | |
510e0e2f | 329 | case 2: |
857d966e MH |
330 | printf("PSK"); |
331 | break; | |
332 | default: | |
332769c6 | 333 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 334 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
335 | break; |
336 | } | |
337 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
338 | switch (data[3]) { | |
510e0e2f | 339 | case 1: |
857d966e MH |
340 | printf("IEEE 802.1X"); |
341 | break; | |
510e0e2f | 342 | case 2: |
857d966e MH |
343 | printf("PSK"); |
344 | break; | |
0fe1c415 JB |
345 | case 3: |
346 | printf("FT/IEEE 802.1X"); | |
347 | break; | |
348 | case 4: | |
349 | printf("FT/PSK"); | |
350 | break; | |
351 | case 5: | |
352 | printf("IEEE 802.1X/SHA-256"); | |
353 | break; | |
354 | case 6: | |
355 | printf("PSK/SHA-256"); | |
356 | break; | |
857d966e | 357 | default: |
332769c6 | 358 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 359 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
360 | break; |
361 | } | |
362 | } else | |
332769c6 | 363 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 364 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
365 | } |
366 | ||
83b4934c JB |
367 | static void print_rsn_ie(const char *defcipher, const char *defauth, |
368 | uint8_t len, const uint8_t *data) | |
857d966e MH |
369 | { |
370 | bool first = true; | |
371 | __u16 version, count, capa; | |
372 | int i; | |
373 | ||
857d966e MH |
374 | version = data[0] + (data[1] << 8); |
375 | tab_on_first(&first); | |
376 | printf("\t * Version: %d\n", version); | |
377 | ||
378 | data += 2; | |
379 | len -= 2; | |
380 | ||
381 | if (len < 4) { | |
382 | tab_on_first(&first); | |
383 | printf("\t * Group cipher: %s\n", defcipher); | |
384 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
385 | return; | |
386 | } | |
387 | ||
388 | tab_on_first(&first); | |
389 | printf("\t * Group cipher: "); | |
390 | print_cipher(data); | |
391 | printf("\n"); | |
392 | ||
393 | data += 4; | |
394 | len -= 4; | |
395 | ||
396 | if (len < 2) { | |
397 | tab_on_first(&first); | |
398 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
399 | return; | |
400 | } | |
401 | ||
402 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
403 | if (2 + (count * 4) > len) |
404 | goto invalid; | |
405 | ||
857d966e MH |
406 | tab_on_first(&first); |
407 | printf("\t * Pairwise ciphers:"); | |
31d477fb | 408 | for (i = 0; i < count; i++) { |
857d966e MH |
409 | printf(" "); |
410 | print_cipher(data + 2 + (i * 4)); | |
411 | } | |
412 | printf("\n"); | |
413 | ||
414 | data += 2 + (count * 4); | |
415 | len -= 2 + (count * 4); | |
416 | ||
417 | if (len < 2) { | |
418 | tab_on_first(&first); | |
419 | printf("\t * Authentication suites: %s\n", defauth); | |
420 | return; | |
421 | } | |
422 | ||
423 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
424 | if (2 + (count * 4) > len) |
425 | goto invalid; | |
426 | ||
857d966e MH |
427 | tab_on_first(&first); |
428 | printf("\t * Authentication suites:"); | |
83b4934c | 429 | for (i = 0; i < count; i++) { |
857d966e MH |
430 | printf(" "); |
431 | print_auth(data + 2 + (i * 4)); | |
432 | } | |
433 | printf("\n"); | |
434 | ||
435 | data += 2 + (count * 4); | |
436 | len -= 2 + (count * 4); | |
437 | ||
6a4f24e8 JB |
438 | if (len >= 2) { |
439 | capa = data[0] | (data[1] << 8); | |
440 | tab_on_first(&first); | |
cadbe89a JB |
441 | printf("\t * Capabilities:"); |
442 | if (capa & 0x0001) | |
443 | printf(" PreAuth"); | |
444 | if (capa & 0x0002) | |
445 | printf(" NoPairwise"); | |
446 | switch ((capa & 0x000c) >> 2) { | |
447 | case 0: | |
448 | break; | |
449 | case 1: | |
450 | printf(" 2-PTKSA-RC"); | |
451 | break; | |
452 | case 2: | |
453 | printf(" 4-PTKSA-RC"); | |
454 | break; | |
455 | case 3: | |
456 | printf(" 16-PTKSA-RC"); | |
457 | break; | |
458 | } | |
459 | switch ((capa & 0x0030) >> 4) { | |
460 | case 0: | |
461 | break; | |
462 | case 1: | |
463 | printf(" 2-GTKSA-RC"); | |
464 | break; | |
465 | case 2: | |
466 | printf(" 4-GTKSA-RC"); | |
467 | break; | |
468 | case 3: | |
469 | printf(" 16-GTKSA-RC"); | |
470 | break; | |
471 | } | |
472 | if (capa & 0x0040) | |
473 | printf(" MFP-required"); | |
474 | if (capa & 0x0080) | |
475 | printf(" MFP-capable"); | |
476 | if (capa & 0x0200) | |
477 | printf(" Peerkey-enabled"); | |
478 | if (capa & 0x0400) | |
479 | printf(" SPP-AMSDU-capable"); | |
480 | if (capa & 0x0800) | |
481 | printf(" SPP-AMSDU-required"); | |
482 | printf(" (0x%.4x)\n", capa); | |
6a4f24e8 JB |
483 | data += 2; |
484 | len -= 2; | |
485 | } | |
31d477fb | 486 | |
5ba3f523 JB |
487 | if (len >= 2) { |
488 | int pmkid_count = data[0] | (data[1] << 8); | |
489 | ||
490 | if (len >= 2 + 16 * pmkid_count) { | |
491 | tab_on_first(&first); | |
492 | printf("\t * %d PMKIDs\n", pmkid_count); | |
493 | /* not printing PMKID values */ | |
494 | data += 2 + 16 * pmkid_count; | |
495 | len -= 2 + 16 * pmkid_count; | |
496 | } else | |
497 | goto invalid; | |
498 | } | |
499 | ||
500 | if (len >= 4) { | |
501 | tab_on_first(&first); | |
502 | printf("\t * Group mgmt cipher suite: "); | |
503 | print_cipher(data); | |
504 | printf("\n"); | |
505 | data += 4; | |
506 | len -= 4; | |
507 | } | |
508 | ||
cadbe89a | 509 | invalid: |
31d477fb MH |
510 | if (len != 0) { |
511 | printf("\t\t * bogus tail data (%d):", len); | |
512 | while (len) { | |
513 | printf(" %.2x", *data); | |
514 | data++; | |
515 | len--; | |
516 | } | |
517 | printf("\n"); | |
518 | } | |
857d966e MH |
519 | } |
520 | ||
83b4934c | 521 | static void print_rsn(const uint8_t type, uint8_t len, const uint8_t *data) |
857d966e | 522 | { |
83b4934c | 523 | print_rsn_ie("CCMP", "IEEE 802.1X", len, data); |
857d966e MH |
524 | } |
525 | ||
0c445c24 LR |
526 | static void print_ht_capa(const uint8_t type, uint8_t len, const uint8_t *data) |
527 | { | |
357c1a5d | 528 | printf("\n"); |
7ddfb679 JB |
529 | print_ht_capability(data[0] | (data[1] << 8)); |
530 | print_ampdu_length(data[2] & 3); | |
c79c7464 | 531 | print_ampdu_spacing((data[2] >> 2) & 7); |
7ddfb679 | 532 | print_ht_mcs(data + 3); |
0c445c24 LR |
533 | } |
534 | ||
be7602fb JB |
535 | static void print_ht_op(const uint8_t type, uint8_t len, const uint8_t *data) |
536 | { | |
537 | static const char *offset[4] = { | |
538 | "no secondary", | |
539 | "above", | |
540 | "[reserved!]", | |
541 | "below", | |
542 | }; | |
543 | static const char *protection[4] = { | |
544 | "no", | |
545 | "nonmember", | |
546 | "20 MHz", | |
547 | "non-HT mixed", | |
548 | }; | |
549 | static const char *sta_chan_width[2] = { | |
550 | "20 MHz", | |
551 | "any", | |
552 | }; | |
553 | ||
554 | printf("\n"); | |
555 | printf("\t\t * primary channel: %d\n", data[0]); | |
556 | printf("\t\t * secondary channel offset: %s\n", | |
557 | offset[data[1] & 0x3]); | |
558 | printf("\t\t * STA channel width: %s\n", sta_chan_width[(data[1] & 0x4)>>2]); | |
559 | printf("\t\t * RIFS: %d\n", (data[1] & 0x8)>>3); | |
560 | printf("\t\t * HT protection: %s\n", protection[data[2] & 0x3]); | |
561 | printf("\t\t * non-GF present: %d\n", (data[2] & 0x4) >> 2); | |
562 | printf("\t\t * OBSS non-GF present: %d\n", (data[2] & 0x10) >> 4); | |
563 | printf("\t\t * dual beacon: %d\n", (data[4] & 0x40) >> 6); | |
564 | printf("\t\t * dual CTS protection: %d\n", (data[4] & 0x80) >> 7); | |
565 | printf("\t\t * STBC beacon: %d\n", data[5] & 0x1); | |
566 | printf("\t\t * L-SIG TXOP Prot: %d\n", (data[5] & 0x2) >> 1); | |
567 | printf("\t\t * PCO active: %d\n", (data[5] & 0x4) >> 2); | |
568 | printf("\t\t * PCO phase: %d\n", (data[5] & 0x8) >> 3); | |
569 | } | |
570 | ||
83b4934c | 571 | static void print_capabilities(const uint8_t type, uint8_t len, const uint8_t *data) |
9b880b00 | 572 | { |
31d2d259 JB |
573 | int i, base, bit; |
574 | bool first = true; | |
575 | ||
576 | ||
577 | for (i = 0; i < len; i++) { | |
578 | base = i * 8; | |
579 | ||
580 | for (bit = 0; bit < 8; bit++) { | |
581 | if (!(data[i] & (1 << bit))) | |
582 | continue; | |
583 | ||
584 | if (!first) | |
585 | printf(","); | |
586 | else | |
587 | first = false; | |
588 | ||
589 | switch (bit + base) { | |
590 | case 0: | |
591 | printf(" HT Information Exchange Supported"); | |
592 | break; | |
593 | case 1: | |
594 | printf(" On-demand Beacon"); | |
595 | break; | |
596 | case 2: | |
597 | printf(" Extended Channel Switching"); | |
598 | break; | |
599 | case 3: | |
600 | printf(" Wave Indication"); | |
601 | break; | |
602 | case 4: | |
603 | printf(" PSMP Capability"); | |
604 | break; | |
605 | case 5: | |
606 | printf(" Service Interval Granularity"); | |
607 | break; | |
608 | case 6: | |
609 | printf(" S-PSMP Capability"); | |
610 | break; | |
611 | default: | |
612 | printf(" %d", bit); | |
613 | break; | |
614 | } | |
615 | } | |
616 | } | |
9b880b00 | 617 | |
9b880b00 MH |
618 | printf("\n"); |
619 | } | |
620 | ||
575280cc JM |
621 | static void print_tim(const uint8_t type, uint8_t len, const uint8_t *data) |
622 | { | |
623 | printf(" DTIM Count %u DTIM Period %u Bitmap Control 0x%x " | |
624 | "Bitmap[0] 0x%x", | |
625 | data[0], data[1], data[2], data[3]); | |
626 | if (len - 4) | |
627 | printf(" (+ %u octet%s)", len - 4, len - 4 == 1 ? "" : "s"); | |
628 | printf("\n"); | |
629 | } | |
630 | ||
83b4934c JB |
631 | struct ie_print { |
632 | const char *name; | |
633 | void (*print)(const uint8_t type, uint8_t len, const uint8_t *data); | |
634 | uint8_t minlen, maxlen; | |
febeb0c0 | 635 | uint8_t flags; |
764fe753 JB |
636 | }; |
637 | ||
83b4934c JB |
638 | static void print_ie(const struct ie_print *p, const uint8_t type, |
639 | uint8_t len, const uint8_t *data) | |
4673a894 | 640 | { |
83b4934c JB |
641 | int i; |
642 | ||
643 | if (!p->print) | |
644 | return; | |
645 | ||
646 | printf("\t%s:", p->name); | |
647 | if (len < p->minlen || len > p->maxlen) { | |
648 | if (len > 1) { | |
649 | printf(" <invalid: %d bytes:", len); | |
650 | for (i = 0; i < len; i++) | |
651 | printf(" %.02x", data[i]); | |
652 | printf(">\n"); | |
653 | } else if (len) | |
654 | printf(" <invalid: 1 byte: %.02x>\n", data[0]); | |
655 | else | |
656 | printf(" <invalid: no data>\n"); | |
657 | return; | |
658 | } | |
659 | ||
660 | p->print(type, len, data); | |
661 | } | |
662 | ||
663 | #define PRINT_IGN { \ | |
664 | .name = "IGNORE", \ | |
665 | .print = NULL, \ | |
666 | .minlen = 0, \ | |
667 | .maxlen = 255, \ | |
4673a894 JB |
668 | } |
669 | ||
83b4934c | 670 | static const struct ie_print ieprinters[] = { |
febeb0c0 JB |
671 | [0] = { "SSID", print_ssid, 0, 32, BIT(PRINT_SCAN) | BIT(PRINT_LINK), }, |
672 | [1] = { "Supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
014d581a | 673 | [3] = { "DS Parameter set", print_ds, 1, 1, BIT(PRINT_SCAN), }, |
575280cc | 674 | [5] = { "TIM", print_tim, 4, 255, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
675 | [7] = { "Country", print_country, 3, 255, BIT(PRINT_SCAN), }, |
676 | [32] = { "Power constraint", print_powerconstraint, 1, 1, BIT(PRINT_SCAN), }, | |
677 | [42] = { "ERP", print_erp, 1, 255, BIT(PRINT_SCAN), }, | |
a2e61861 | 678 | [45] = { "HT capabilities", print_ht_capa, 26, 26, BIT(PRINT_SCAN), }, |
be7602fb | 679 | [61] = { "HT operation", print_ht_op, 22, 22, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
680 | [48] = { "RSN", print_rsn, 2, 255, BIT(PRINT_SCAN), }, |
681 | [50] = { "Extended supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
720583e9 | 682 | [114] = { "MESH ID", print_ssid, 0, 32, BIT(PRINT_SCAN) | BIT(PRINT_LINK), }, |
febeb0c0 | 683 | [127] = { "Extended capabilities", print_capabilities, 0, 255, BIT(PRINT_SCAN), }, |
83b4934c JB |
684 | }; |
685 | ||
686 | static void print_wifi_wpa(const uint8_t type, uint8_t len, const uint8_t *data) | |
687 | { | |
688 | print_rsn_ie("TKIP", "IEEE 802.1X", len, data); | |
689 | } | |
690 | ||
1cab57eb JB |
691 | static bool print_wifi_wmm_param(const uint8_t *data, uint8_t len) |
692 | { | |
693 | int i; | |
694 | static const char *aci_tbl[] = { "BE", "BK", "VI", "VO" }; | |
695 | ||
696 | if (len < 19) | |
697 | goto invalid; | |
698 | ||
699 | if (data[0] != 1) { | |
cee4fe20 | 700 | printf("Parameter: not version 1: "); |
1cab57eb JB |
701 | return false; |
702 | } | |
703 | ||
89ea706f | 704 | printf("\t * Parameter version 1"); |
1cab57eb JB |
705 | |
706 | data++; | |
707 | ||
708 | if (data[0] & 0x80) | |
89ea706f | 709 | printf("\n\t\t * u-APSD"); |
1cab57eb JB |
710 | |
711 | data += 2; | |
712 | ||
713 | for (i = 0; i < 4; i++) { | |
89ea706f | 714 | printf("\n\t\t * %s:", aci_tbl[(data[0] >> 5) & 3]); |
87181516 | 715 | if (data[0] & 0x10) |
1cab57eb JB |
716 | printf(" acm"); |
717 | printf(" CW %d-%d", (1 << (data[1] & 0xf)) - 1, | |
718 | (1 << (data[1] >> 4)) - 1); | |
a2a4c265 | 719 | printf(", AIFSN %d", data[0] & 0xf); |
1cab57eb | 720 | if (data[2] | data[3]) |
cee4fe20 | 721 | printf(", TXOP %d usec", (data[2] + (data[3] << 8)) * 32); |
1cab57eb JB |
722 | data += 4; |
723 | } | |
724 | ||
725 | printf("\n"); | |
726 | return true; | |
727 | ||
728 | invalid: | |
729 | printf("invalid: "); | |
730 | return false; | |
731 | } | |
732 | ||
83b4934c | 733 | static void print_wifi_wmm(const uint8_t type, uint8_t len, const uint8_t *data) |
6ff0c93a MH |
734 | { |
735 | int i; | |
736 | ||
6ff0c93a MH |
737 | switch (data[0]) { |
738 | case 0x00: | |
83b4934c | 739 | printf(" information:"); |
6ff0c93a MH |
740 | break; |
741 | case 0x01: | |
1cab57eb JB |
742 | if (print_wifi_wmm_param(data + 1, len - 1)) |
743 | return; | |
6ff0c93a MH |
744 | break; |
745 | default: | |
83b4934c | 746 | printf(" type %d:", data[0]); |
6ff0c93a MH |
747 | break; |
748 | } | |
749 | ||
1cab57eb JB |
750 | for(i = 1; i < len; i++) |
751 | printf(" %.02x", data[i]); | |
6ff0c93a MH |
752 | printf("\n"); |
753 | } | |
754 | ||
a6816965 JM |
755 | static const char * wifi_wps_dev_passwd_id(uint16_t id) |
756 | { | |
757 | switch (id) { | |
758 | case 0: | |
759 | return "Default (PIN)"; | |
760 | case 1: | |
761 | return "User-specified"; | |
762 | case 2: | |
763 | return "Machine-specified"; | |
764 | case 3: | |
765 | return "Rekey"; | |
766 | case 4: | |
767 | return "PushButton"; | |
768 | case 5: | |
769 | return "Registrar-specified"; | |
770 | default: | |
771 | return "??"; | |
772 | } | |
773 | } | |
774 | ||
83b4934c | 775 | static void print_wifi_wps(const uint8_t type, uint8_t len, const uint8_t *data) |
4673a894 JB |
776 | { |
777 | bool first = true; | |
778 | __u16 subtype, sublen; | |
779 | ||
4673a894 JB |
780 | while (len >= 4) { |
781 | subtype = (data[0] << 8) + data[1]; | |
782 | sublen = (data[2] << 8) + data[3]; | |
783 | if (sublen > len) | |
784 | break; | |
785 | ||
786 | switch (subtype) { | |
787 | case 0x104a: | |
788 | tab_on_first(&first); | |
dffc6750 | 789 | printf("\t * Version: %d.%d\n", data[4] >> 4, data[4] & 0xF); |
4673a894 JB |
790 | break; |
791 | case 0x1011: | |
792 | tab_on_first(&first); | |
793 | printf("\t * Device name: %.*s\n", sublen, data + 4); | |
794 | break; | |
a6816965 JM |
795 | case 0x1012: { |
796 | uint16_t id; | |
797 | tab_on_first(&first); | |
798 | if (sublen != 2) { | |
799 | printf("\t * Device Password ID: (invalid " | |
800 | "length %d)\n", sublen); | |
801 | break; | |
802 | } | |
803 | id = data[4] << 8 | data[5]; | |
804 | printf("\t * Device Password ID: %u (%s)\n", | |
805 | id, wifi_wps_dev_passwd_id(id)); | |
806 | break; | |
807 | } | |
4673a894 JB |
808 | case 0x1021: |
809 | tab_on_first(&first); | |
810 | printf("\t * Manufacturer: %.*s\n", sublen, data + 4); | |
811 | break; | |
812 | case 0x1023: | |
813 | tab_on_first(&first); | |
814 | printf("\t * Model: %.*s\n", sublen, data + 4); | |
815 | break; | |
a6816965 JM |
816 | case 0x1024: |
817 | tab_on_first(&first); | |
818 | printf("\t * Model Number: %.*s\n", sublen, data + 4); | |
819 | break; | |
820 | case 0x103b: { | |
821 | __u8 val = data[4]; | |
822 | tab_on_first(&first); | |
823 | printf("\t * Response Type: %d%s\n", | |
824 | val, val == 3 ? " (AP)" : ""); | |
825 | break; | |
826 | } | |
827 | case 0x103c: { | |
828 | __u8 val = data[4]; | |
829 | tab_on_first(&first); | |
830 | printf("\t * RF Bands: 0x%x\n", val); | |
831 | break; | |
832 | } | |
833 | case 0x1041: { | |
834 | __u8 val = data[4]; | |
835 | tab_on_first(&first); | |
836 | printf("\t * Selected Registrar: 0x%x\n", val); | |
837 | break; | |
838 | } | |
839 | case 0x1042: | |
840 | tab_on_first(&first); | |
841 | printf("\t * Serial Number: %.*s\n", sublen, data + 4); | |
842 | break; | |
843 | case 0x1044: { | |
844 | __u8 val = data[4]; | |
845 | tab_on_first(&first); | |
846 | printf("\t * Wi-Fi Protected Setup State: %d%s%s\n", | |
847 | val, | |
848 | val == 1 ? " (Unconfigured)" : "", | |
849 | val == 2 ? " (Configured)" : ""); | |
850 | break; | |
851 | } | |
09fe09dc JB |
852 | case 0x1047: |
853 | tab_on_first(&first); | |
854 | printf("\t * UUID: "); | |
855 | if (sublen != 16) { | |
856 | printf("(invalid, length=%d)\n", sublen); | |
857 | break; | |
858 | } | |
859 | printf("%02x%02x%02x%02x-%02x%02x-%02x%02x-" | |
860 | "%02x%02x-%02x%02x%02x%02x%02x%02x\n", | |
861 | data[4], data[5], data[6], data[7], | |
862 | data[8], data[9], data[10], data[11], | |
863 | data[12], data[13], data[14], data[15], | |
864 | data[16], data[17], data[18], data[19]); | |
865 | break; | |
a6816965 JM |
866 | case 0x1054: { |
867 | tab_on_first(&first); | |
868 | if (sublen != 8) { | |
869 | printf("\t * Primary Device Type: (invalid " | |
870 | "length %d)\n", sublen); | |
871 | break; | |
872 | } | |
873 | printf("\t * Primary Device Type: " | |
874 | "%u-%02x%02x%02x%02x-%u\n", | |
875 | data[4] << 8 | data[5], | |
876 | data[6], data[7], data[8], data[9], | |
877 | data[10] << 8 | data[11]); | |
878 | break; | |
879 | } | |
7ee5a865 | 880 | case 0x1057: { |
fe31a22e | 881 | __u8 val = data[4]; |
7ee5a865 | 882 | tab_on_first(&first); |
fe31a22e | 883 | printf("\t * AP setup locked: 0x%.2x\n", val); |
7ee5a865 JB |
884 | break; |
885 | } | |
a6816965 JM |
886 | case 0x1008: |
887 | case 0x1053: { | |
4673a894 JB |
888 | __u16 meth = (data[4] << 8) + data[5]; |
889 | bool comma = false; | |
890 | tab_on_first(&first); | |
a6816965 JM |
891 | printf("\t * %sConfig methods:", |
892 | subtype == 0x1053 ? "Selected Registrar ": ""); | |
4673a894 JB |
893 | #define T(bit, name) do { \ |
894 | if (meth & (1<<bit)) { \ | |
895 | if (comma) \ | |
896 | printf(","); \ | |
897 | comma = true; \ | |
898 | printf(" " name); \ | |
899 | } } while (0) | |
900 | T(0, "USB"); | |
901 | T(1, "Ethernet"); | |
902 | T(2, "Label"); | |
903 | T(3, "Display"); | |
904 | T(4, "Ext. NFC"); | |
905 | T(5, "Int. NFC"); | |
906 | T(6, "NFC Intf."); | |
907 | T(7, "PBC"); | |
908 | T(8, "Keypad"); | |
909 | printf("\n"); | |
910 | break; | |
911 | #undef T | |
912 | } | |
2650d46b JB |
913 | default: { |
914 | const __u8 *subdata = data + 4; | |
915 | __u16 tmplen = sublen; | |
916 | ||
917 | tab_on_first(&first); | |
918 | printf("\t * Unknown TLV (%#.4x, %d bytes):", | |
919 | subtype, tmplen); | |
920 | while (tmplen) { | |
921 | printf(" %.2x", *subdata); | |
922 | subdata++; | |
923 | tmplen--; | |
924 | } | |
925 | printf("\n"); | |
4673a894 JB |
926 | break; |
927 | } | |
2650d46b | 928 | } |
4673a894 JB |
929 | |
930 | data += sublen + 4; | |
931 | len -= sublen + 4; | |
932 | } | |
933 | ||
934 | if (len != 0) { | |
935 | printf("\t\t * bogus tail data (%d):", len); | |
936 | while (len) { | |
937 | printf(" %.2x", *data); | |
938 | data++; | |
939 | len--; | |
940 | } | |
941 | printf("\n"); | |
942 | } | |
943 | } | |
944 | ||
83b4934c | 945 | static const struct ie_print wifiprinters[] = { |
febeb0c0 JB |
946 | [1] = { "WPA", print_wifi_wpa, 2, 255, BIT(PRINT_SCAN), }, |
947 | [2] = { "WMM", print_wifi_wmm, 1, 255, BIT(PRINT_SCAN), }, | |
948 | [4] = { "WPS", print_wifi_wps, 0, 255, BIT(PRINT_SCAN), }, | |
4673a894 JB |
949 | }; |
950 | ||
9a22374a JB |
951 | static inline void print_p2p(const uint8_t type, uint8_t len, const uint8_t *data) |
952 | { | |
953 | bool first = true; | |
954 | __u8 subtype; | |
955 | __u16 sublen; | |
956 | ||
957 | while (len >= 3) { | |
958 | subtype = data[0]; | |
959 | sublen = (data[2] << 8) + data[1]; | |
960 | ||
961 | if (sublen > len - 3) | |
962 | break; | |
963 | ||
964 | switch (subtype) { | |
965 | case 0x02: /* capability */ | |
966 | tab_on_first(&first); | |
967 | if (sublen < 2) { | |
968 | printf("\t * malformed capability\n"); | |
969 | break; | |
970 | } | |
971 | printf("\t * Group capa: 0x%.2x, Device capa: 0x%.2x\n", | |
972 | data[3], data[4]); | |
973 | break; | |
974 | case 0x0d: /* device info */ | |
975 | if (sublen < 6 + 2 + 8 + 1) { | |
976 | printf("\t * malformed device info\n"); | |
977 | break; | |
978 | } | |
979 | /* fall through for now */ | |
980 | case 0x00: /* status */ | |
981 | case 0x01: /* minor reason */ | |
982 | case 0x03: /* device ID */ | |
983 | case 0x04: /* GO intent */ | |
984 | case 0x05: /* configuration timeout */ | |
985 | case 0x06: /* listen channel */ | |
986 | case 0x07: /* group BSSID */ | |
987 | case 0x08: /* ext listen timing */ | |
988 | case 0x09: /* intended interface address */ | |
989 | case 0x0a: /* manageability */ | |
990 | case 0x0b: /* channel list */ | |
991 | case 0x0c: /* NoA */ | |
992 | case 0x0e: /* group info */ | |
993 | case 0x0f: /* group ID */ | |
994 | case 0x10: /* interface */ | |
995 | case 0x11: /* operating channel */ | |
996 | case 0x12: /* invitation flags */ | |
997 | case 0xdd: /* vendor specific */ | |
998 | default: { | |
999 | const __u8 *subdata = data + 4; | |
1000 | __u16 tmplen = sublen; | |
1001 | ||
1002 | tab_on_first(&first); | |
1003 | printf("\t * Unknown TLV (%#.2x, %d bytes):", | |
1004 | subtype, tmplen); | |
1005 | while (tmplen) { | |
1006 | printf(" %.2x", *subdata); | |
1007 | subdata++; | |
1008 | tmplen--; | |
1009 | } | |
1010 | printf("\n"); | |
1011 | break; | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | data += sublen + 3; | |
1016 | len -= sublen + 3; | |
1017 | } | |
1018 | ||
1019 | if (len != 0) { | |
1020 | tab_on_first(&first); | |
1021 | printf("\t * bogus tail data (%d):", len); | |
1022 | while (len) { | |
1023 | printf(" %.2x", *data); | |
1024 | data++; | |
1025 | len--; | |
1026 | } | |
1027 | printf("\n"); | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | static const struct ie_print wfa_printers[] = { | |
1032 | [9] = { "P2P", print_p2p, 2, 255, BIT(PRINT_SCAN), }, | |
1033 | }; | |
1034 | ||
764fe753 | 1035 | static void print_vendor(unsigned char len, unsigned char *data, |
febeb0c0 | 1036 | bool unknown, enum print_ie_type ptype) |
3563f4c5 JB |
1037 | { |
1038 | int i; | |
1039 | ||
fbf80af5 | 1040 | if (len < 3) { |
4673a894 | 1041 | printf("\tVendor specific: <too short> data:"); |
fbf80af5 JB |
1042 | for(i = 0; i < len; i++) |
1043 | printf(" %.02x", data[i]); | |
1044 | printf("\n"); | |
1045 | return; | |
1046 | } | |
1047 | ||
3bd60ef1 | 1048 | if (len >= 4 && memcmp(data, ms_oui, 3) == 0) { |
febeb0c0 JB |
1049 | if (data[3] < ARRAY_SIZE(wifiprinters) && |
1050 | wifiprinters[data[3]].name && | |
1051 | wifiprinters[data[3]].flags & BIT(ptype)) { | |
83b4934c JB |
1052 | print_ie(&wifiprinters[data[3]], data[3], len - 4, data + 4); |
1053 | return; | |
1054 | } | |
febeb0c0 | 1055 | if (!unknown) |
4673a894 | 1056 | return; |
3bd60ef1 | 1057 | printf("\tMS/WiFi %#.2x, data:", data[3]); |
4673a894 JB |
1058 | for(i = 0; i < len - 4; i++) |
1059 | printf(" %.02x", data[i + 4]); | |
1060 | printf("\n"); | |
1061 | return; | |
1062 | } | |
1063 | ||
9a22374a JB |
1064 | if (len >= 4 && memcmp(data, wfa_oui, 3) == 0) { |
1065 | if (data[3] < ARRAY_SIZE(wfa_printers) && | |
1066 | wfa_printers[data[3]].name && | |
1067 | wfa_printers[data[3]].flags & BIT(ptype)) { | |
1068 | print_ie(&wfa_printers[data[3]], data[3], len - 4, data + 4); | |
1069 | return; | |
1070 | } | |
1071 | if (!unknown) | |
1072 | return; | |
1073 | printf("\tWFA %#.2x, data:", data[3]); | |
1074 | for(i = 0; i < len - 4; i++) | |
1075 | printf(" %.02x", data[i + 4]); | |
1076 | printf("\n"); | |
1077 | return; | |
1078 | } | |
1079 | ||
febeb0c0 | 1080 | if (!unknown) |
764fe753 JB |
1081 | return; |
1082 | ||
fbf80af5 | 1083 | printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data:", |
3563f4c5 | 1084 | data[0], data[1], data[2]); |
fbf80af5 JB |
1085 | for (i = 3; i < len; i++) |
1086 | printf(" %.2x", data[i]); | |
3563f4c5 JB |
1087 | printf("\n"); |
1088 | } | |
1089 | ||
febeb0c0 JB |
1090 | void print_ies(unsigned char *ie, int ielen, bool unknown, |
1091 | enum print_ie_type ptype) | |
3563f4c5 JB |
1092 | { |
1093 | while (ielen >= 2 && ielen >= ie[1]) { | |
febeb0c0 JB |
1094 | if (ie[0] < ARRAY_SIZE(ieprinters) && |
1095 | ieprinters[ie[0]].name && | |
1096 | ieprinters[ie[0]].flags & BIT(ptype)) { | |
83b4934c | 1097 | print_ie(&ieprinters[ie[0]], ie[0], ie[1], ie + 2); |
764fe753 | 1098 | } else if (ie[0] == 221 /* vendor */) { |
febeb0c0 JB |
1099 | print_vendor(ie[1], ie + 2, unknown, ptype); |
1100 | } else if (unknown) { | |
3563f4c5 JB |
1101 | int i; |
1102 | ||
8086b700 | 1103 | printf("\tUnknown IE (%d):", ie[0]); |
3563f4c5 | 1104 | for (i=0; i<ie[1]; i++) |
8086b700 | 1105 | printf(" %.2x", ie[2+i]); |
3563f4c5 JB |
1106 | printf("\n"); |
1107 | } | |
1108 | ielen -= ie[1] + 2; | |
1109 | ie += ie[1] + 2; | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | static int print_bss_handler(struct nl_msg *msg, void *arg) | |
1114 | { | |
1115 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1116 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1117 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
1118 | char mac_addr[20], dev[20]; | |
1119 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
1120 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
1121 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
1122 | [NL80211_BSS_BSSID] = { }, | |
1123 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
1124 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
1125 | [NL80211_BSS_INFORMATION_ELEMENTS] = { }, | |
f2e17e1f JB |
1126 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, |
1127 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
a56117a6 | 1128 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
c04a78df | 1129 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
575280cc | 1130 | [NL80211_BSS_BEACON_IES] = { }, |
3563f4c5 | 1131 | }; |
febeb0c0 | 1132 | struct scan_params *params = arg; |
1c5bcd9c | 1133 | int show = params->show_both_ie_sets ? 2 : 1; |
3563f4c5 JB |
1134 | |
1135 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1136 | genlmsg_attrlen(gnlh, 0), NULL); | |
1137 | ||
1138 | if (!tb[NL80211_ATTR_BSS]) { | |
5fe70c0e | 1139 | fprintf(stderr, "bss info missing!\n"); |
3563f4c5 JB |
1140 | return NL_SKIP; |
1141 | } | |
1142 | if (nla_parse_nested(bss, NL80211_BSS_MAX, | |
1143 | tb[NL80211_ATTR_BSS], | |
1144 | bss_policy)) { | |
5fe70c0e | 1145 | fprintf(stderr, "failed to parse nested attributes!\n"); |
3563f4c5 JB |
1146 | return NL_SKIP; |
1147 | } | |
1148 | ||
1149 | if (!bss[NL80211_BSS_BSSID]) | |
1150 | return NL_SKIP; | |
1151 | ||
1152 | mac_addr_n2a(mac_addr, nla_data(bss[NL80211_BSS_BSSID])); | |
1153 | if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), dev); | |
a56117a6 JB |
1154 | printf("BSS %s (on %s)", mac_addr, dev); |
1155 | ||
1156 | if (bss[NL80211_BSS_STATUS]) { | |
1157 | switch (nla_get_u32(bss[NL80211_BSS_STATUS])) { | |
1158 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
1159 | printf(" -- authenticated"); | |
1160 | break; | |
1161 | case NL80211_BSS_STATUS_ASSOCIATED: | |
1162 | printf(" -- associated"); | |
1163 | break; | |
1164 | case NL80211_BSS_STATUS_IBSS_JOINED: | |
1165 | printf(" -- joined"); | |
1166 | break; | |
1167 | default: | |
1168 | printf(" -- unknown status: %d", | |
1169 | nla_get_u32(bss[NL80211_BSS_STATUS])); | |
1170 | break; | |
1171 | } | |
1172 | } | |
1173 | printf("\n"); | |
3563f4c5 | 1174 | |
e7109a8a JB |
1175 | if (bss[NL80211_BSS_TSF]) { |
1176 | unsigned long long tsf; | |
1177 | tsf = (unsigned long long)nla_get_u64(bss[NL80211_BSS_TSF]); | |
1178 | printf("\tTSF: %llu usec (%llud, %.2lld:%.2llu:%.2llu)\n", | |
1179 | tsf, tsf/1000/1000/60/60/24, (tsf/1000/1000/60/60) % 24, | |
1180 | (tsf/1000/1000/60) % 60, (tsf/1000/1000) % 60); | |
1181 | } | |
3563f4c5 JB |
1182 | if (bss[NL80211_BSS_FREQUENCY]) |
1183 | printf("\tfreq: %d\n", | |
1184 | nla_get_u32(bss[NL80211_BSS_FREQUENCY])); | |
1185 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
1186 | printf("\tbeacon interval: %d\n", | |
1187 | nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL])); | |
92a04ecd MH |
1188 | if (bss[NL80211_BSS_CAPABILITY]) { |
1189 | __u16 capa = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
1190 | printf("\tcapability:"); | |
1191 | if (capa & WLAN_CAPABILITY_ESS) | |
1192 | printf(" ESS"); | |
1193 | if (capa & WLAN_CAPABILITY_IBSS) | |
1194 | printf(" IBSS"); | |
1195 | if (capa & WLAN_CAPABILITY_PRIVACY) | |
1196 | printf(" Privacy"); | |
1197 | if (capa & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1198 | printf(" ShortPreamble"); | |
1199 | if (capa & WLAN_CAPABILITY_PBCC) | |
1200 | printf(" PBCC"); | |
1201 | if (capa & WLAN_CAPABILITY_CHANNEL_AGILITY) | |
1202 | printf(" ChannelAgility"); | |
1203 | if (capa & WLAN_CAPABILITY_SPECTRUM_MGMT) | |
1204 | printf(" SpectrumMgmt"); | |
1205 | if (capa & WLAN_CAPABILITY_QOS) | |
1206 | printf(" QoS"); | |
1207 | if (capa & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
1208 | printf(" ShortSlotTime"); | |
1209 | if (capa & WLAN_CAPABILITY_APSD) | |
1210 | printf(" APSD"); | |
1211 | if (capa & WLAN_CAPABILITY_DSSS_OFDM) | |
1212 | printf(" DSSS-OFDM"); | |
1213 | printf(" (0x%.4x)\n", capa); | |
1214 | } | |
f2e17e1f JB |
1215 | if (bss[NL80211_BSS_SIGNAL_MBM]) { |
1216 | int s = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); | |
1217 | printf("\tsignal: %d.%.2d dBm\n", s/100, s%100); | |
1218 | } | |
1219 | if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
1220 | unsigned char s = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
1221 | printf("\tsignal: %d/100\n", s); | |
1222 | } | |
c04a78df HS |
1223 | if (bss[NL80211_BSS_SEEN_MS_AGO]) { |
1224 | int age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
1225 | printf("\tlast seen: %d ms ago\n", age); | |
1226 | } | |
c551449a | 1227 | |
1c5bcd9c | 1228 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS] && show--) { |
575280cc JM |
1229 | if (bss[NL80211_BSS_BEACON_IES]) |
1230 | printf("\tInformation elements from Probe Response " | |
1231 | "frame:\n"); | |
3563f4c5 | 1232 | print_ies(nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
764fe753 | 1233 | nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
febeb0c0 | 1234 | params->unknown, params->type); |
575280cc | 1235 | } |
1c5bcd9c | 1236 | if (bss[NL80211_BSS_BEACON_IES] && show--) { |
575280cc JM |
1237 | printf("\tInformation elements from Beacon frame:\n"); |
1238 | print_ies(nla_data(bss[NL80211_BSS_BEACON_IES]), | |
1239 | nla_len(bss[NL80211_BSS_BEACON_IES]), | |
1240 | params->unknown, params->type); | |
1241 | } | |
3563f4c5 JB |
1242 | |
1243 | return NL_SKIP; | |
1244 | } | |
1245 | ||
764fe753 | 1246 | static struct scan_params scan_params; |
3563f4c5 | 1247 | |
7c37a24d JB |
1248 | static int handle_scan_dump(struct nl80211_state *state, |
1249 | struct nl_cb *cb, | |
3563f4c5 | 1250 | struct nl_msg *msg, |
05514f95 JB |
1251 | int argc, char **argv, |
1252 | enum id_input id) | |
3563f4c5 | 1253 | { |
764fe753 JB |
1254 | if (argc > 1) |
1255 | return 1; | |
1256 | ||
1c5bcd9c JB |
1257 | memset(&scan_params, 0, sizeof(scan_params)); |
1258 | ||
764fe753 JB |
1259 | if (argc == 1 && !strcmp(argv[0], "-u")) |
1260 | scan_params.unknown = true; | |
575280cc JM |
1261 | else if (argc == 1 && !strcmp(argv[0], "-b")) |
1262 | scan_params.show_both_ie_sets = true; | |
764fe753 | 1263 | |
febeb0c0 JB |
1264 | scan_params.type = PRINT_SCAN; |
1265 | ||
764fe753 JB |
1266 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_bss_handler, |
1267 | &scan_params); | |
3563f4c5 JB |
1268 | return 0; |
1269 | } | |
a5fe4ef2 JB |
1270 | |
1271 | static int handle_scan_combined(struct nl80211_state *state, | |
1272 | struct nl_cb *cb, | |
1273 | struct nl_msg *msg, | |
05514f95 JB |
1274 | int argc, char **argv, |
1275 | enum id_input id) | |
a5fe4ef2 | 1276 | { |
559a1713 | 1277 | char **trig_argv; |
a5fe4ef2 JB |
1278 | static char *dump_argv[] = { |
1279 | NULL, | |
1280 | "scan", | |
1281 | "dump", | |
92649eab | 1282 | NULL, |
a5fe4ef2 JB |
1283 | }; |
1284 | static const __u32 cmds[] = { | |
1285 | NL80211_CMD_NEW_SCAN_RESULTS, | |
1286 | NL80211_CMD_SCAN_ABORTED, | |
1287 | }; | |
559a1713 | 1288 | int trig_argc, dump_argc, err; |
a5fe4ef2 | 1289 | |
559a1713 JB |
1290 | if (argc >= 3 && !strcmp(argv[2], "-u")) { |
1291 | dump_argc = 4; | |
1292 | dump_argv[3] = "-u"; | |
575280cc JM |
1293 | } else if (argc >= 3 && !strcmp(argv[2], "-b")) { |
1294 | dump_argc = 4; | |
1295 | dump_argv[3] = "-b"; | |
559a1713 JB |
1296 | } else |
1297 | dump_argc = 3; | |
1298 | ||
1299 | trig_argc = 3 + (argc - 2) + (3 - dump_argc); | |
1300 | trig_argv = calloc(trig_argc, sizeof(*trig_argv)); | |
1301 | if (!trig_argv) | |
1302 | return -ENOMEM; | |
a5fe4ef2 | 1303 | trig_argv[0] = argv[0]; |
559a1713 JB |
1304 | trig_argv[1] = "scan"; |
1305 | trig_argv[2] = "trigger"; | |
1306 | int i; | |
1307 | for (i = 0; i < argc - 2 - (dump_argc - 3); i++) | |
1308 | trig_argv[i + 3] = argv[i + 2 + (dump_argc - 3)]; | |
75f4204c | 1309 | err = handle_cmd(state, id, trig_argc, trig_argv); |
559a1713 | 1310 | free(trig_argv); |
a5fe4ef2 JB |
1311 | if (err) |
1312 | return err; | |
1313 | ||
61725dbe JB |
1314 | /* |
1315 | * WARNING: DO NOT COPY THIS CODE INTO YOUR APPLICATION | |
1316 | * | |
1317 | * This code has a bug, which requires creating a separate | |
1318 | * nl80211 socket to fix: | |
1319 | * It is possible for a NL80211_CMD_NEW_SCAN_RESULTS or | |
1320 | * NL80211_CMD_SCAN_ABORTED message to be sent by the kernel | |
1321 | * before (!) we listen to it, because we only start listening | |
1322 | * after we send our scan request. | |
1323 | * | |
1324 | * Doing it the other way around has a race condition as well, | |
1325 | * if you first open the events socket you may get a notification | |
1326 | * for a previous scan. | |
1327 | * | |
1328 | * The only proper way to fix this would be to listen to events | |
1329 | * before sending the command, and for the kernel to send the | |
1330 | * scan request along with the event, so that you can match up | |
1331 | * whether the scan you requested was finished or aborted (this | |
1332 | * may result in processing a scan that another application | |
1333 | * requested, but that doesn't seem to be a problem). | |
1334 | * | |
1335 | * Alas, the kernel doesn't do that (yet). | |
1336 | */ | |
1337 | ||
a5fe4ef2 JB |
1338 | if (listen_events(state, ARRAY_SIZE(cmds), cmds) == |
1339 | NL80211_CMD_SCAN_ABORTED) { | |
1340 | printf("scan aborted!\n"); | |
1341 | return 0; | |
1342 | } | |
1343 | ||
1344 | dump_argv[0] = argv[0]; | |
75f4204c | 1345 | return handle_cmd(state, id, dump_argc, dump_argv); |
a5fe4ef2 | 1346 | } |
64797a7f | 1347 | TOPLEVEL(scan, "[-u] [freq <freq>*] [ies <hex as 00:11:..>] [ssid <ssid>*|passive]", 0, 0, |
6ca98d28 JB |
1348 | CIB_NETDEV, handle_scan_combined, |
1349 | "Scan on the given frequencies and probe for the given SSIDs\n" | |
1350 | "(or wildcard if not given) unless passive scanning is requested.\n" | |
64797a7f JB |
1351 | "If -u is specified print unknown data in the scan results.\n" |
1352 | "Specified (vendor) IEs must be well-formed."); | |
4698bfc2 JB |
1353 | COMMAND(scan, dump, "[-u]", |
1354 | NL80211_CMD_GET_SCAN, NLM_F_DUMP, CIB_NETDEV, handle_scan_dump, | |
1355 | "Dump the current scan results. If -u is specified, print unknown\n" | |
1356 | "data in scan results."); | |
64797a7f | 1357 | COMMAND(scan, trigger, "[freq <freq>*] [ies <hex as 00:11:..>] [ssid <ssid>*|passive]", |
4698bfc2 JB |
1358 | NL80211_CMD_TRIGGER_SCAN, 0, CIB_NETDEV, handle_scan, |
1359 | "Trigger a scan on the given frequencies with probing for the given\n" | |
1360 | "SSIDs (or wildcard if not given) unless passive scanning is requested."); |