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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 JB |
57 | struct nl_msg *msg, |
58 | int argc, char **argv) | |
59 | { | |
559a1713 JB |
60 | struct nl_msg *ssids = NULL, *freqs = NULL; |
61 | char *eptr; | |
3563f4c5 | 62 | int err = -ENOBUFS; |
559a1713 JB |
63 | int i; |
64 | enum { | |
65 | NONE, | |
66 | FREQ, | |
64797a7f | 67 | IES, |
559a1713 JB |
68 | SSID, |
69 | DONE, | |
70 | } parse = NONE; | |
71 | int freq; | |
72 | bool passive = false, have_ssids = false, have_freqs = false; | |
64797a7f JB |
73 | size_t tmp; |
74 | unsigned char *ies; | |
3563f4c5 JB |
75 | |
76 | ssids = nlmsg_alloc(); | |
77 | if (!ssids) | |
78 | return -ENOMEM; | |
559a1713 JB |
79 | |
80 | freqs = nlmsg_alloc(); | |
81 | if (!freqs) { | |
82 | nlmsg_free(ssids); | |
83 | return -ENOMEM; | |
84 | } | |
85 | ||
86 | for (i = 0; i < argc; i++) { | |
559a1713 JB |
87 | switch (parse) { |
88 | case NONE: | |
64797a7f JB |
89 | if (strcmp(argv[i], "freq") == 0) { |
90 | parse = FREQ; | |
91 | have_freqs = true; | |
92 | break; | |
93 | } else if (strcmp(argv[i], "ies") == 0) { | |
94 | parse = IES; | |
95 | break; | |
96 | } else if (strcmp(argv[i], "ssid") == 0) { | |
97 | parse = SSID; | |
98 | have_ssids = true; | |
99 | break; | |
100 | } else if (strcmp(argv[i], "passive") == 0) { | |
101 | parse = DONE; | |
102 | passive = true; | |
103 | break; | |
104 | } | |
559a1713 JB |
105 | case DONE: |
106 | return 1; | |
107 | case FREQ: | |
108 | freq = strtoul(argv[i], &eptr, 10); | |
cc12e895 JB |
109 | if (eptr != argv[i] + strlen(argv[i])) { |
110 | /* failed to parse as number -- maybe a tag? */ | |
111 | i--; | |
112 | parse = NONE; | |
113 | continue; | |
114 | } | |
559a1713 | 115 | NLA_PUT_U32(freqs, i, freq); |
64797a7f JB |
116 | break; |
117 | case IES: | |
118 | ies = parse_hex(argv[i], &tmp); | |
119 | if (!ies) | |
120 | goto nla_put_failure; | |
121 | NLA_PUT(msg, NL80211_ATTR_IE, tmp, ies); | |
122 | free(ies); | |
123 | parse = NONE; | |
559a1713 JB |
124 | break; |
125 | case SSID: | |
126 | NLA_PUT(ssids, i, strlen(argv[i]), argv[i]); | |
127 | break; | |
128 | } | |
129 | } | |
130 | ||
131 | if (!have_ssids) | |
132 | NLA_PUT(ssids, 1, 0, ""); | |
133 | if (!passive) | |
134 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
135 | ||
136 | if (have_freqs) | |
137 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); | |
3563f4c5 JB |
138 | |
139 | err = 0; | |
140 | nla_put_failure: | |
141 | nlmsg_free(ssids); | |
559a1713 | 142 | nlmsg_free(freqs); |
3563f4c5 JB |
143 | return err; |
144 | } | |
3563f4c5 | 145 | |
857d966e MH |
146 | static void tab_on_first(bool *first) |
147 | { | |
148 | if (!*first) | |
149 | printf("\t"); | |
150 | else | |
151 | *first = false; | |
152 | } | |
153 | ||
83b4934c | 154 | static void print_ssid(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 155 | { |
83b4934c | 156 | printf(" "); |
748f8489 | 157 | print_ssid_escaped(len, data); |
3563f4c5 JB |
158 | printf("\n"); |
159 | } | |
160 | ||
83b4934c | 161 | static void print_supprates(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 JB |
162 | { |
163 | int i; | |
164 | ||
83b4934c | 165 | printf(" "); |
3563f4c5 | 166 | |
83b4934c | 167 | for (i = 0; i < len; i++) { |
3563f4c5 JB |
168 | int r = data[i] & 0x7f; |
169 | printf("%d.%d%s ", r/2, 5*(r&1), data[i] & 0x80 ? "*":""); | |
170 | } | |
171 | printf("\n"); | |
172 | } | |
173 | ||
83b4934c | 174 | static void print_ds(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 175 | { |
83b4934c | 176 | printf(" channel %d\n", data[0]); |
3563f4c5 JB |
177 | } |
178 | ||
2b690f0a | 179 | static const char *country_env_str(char environment) |
b7e8fa37 | 180 | { |
2b690f0a | 181 | switch (environment) { |
b7e8fa37 | 182 | case 'I': |
2b690f0a | 183 | return "Indoor only"; |
b7e8fa37 | 184 | case 'O': |
2b690f0a | 185 | return "Outdoor only"; |
b6c0d634 | 186 | case ' ': |
2b690f0a | 187 | return "Indoor/Outdoor"; |
b6c0d634 | 188 | default: |
2b690f0a | 189 | return "bogus"; |
b7e8fa37 | 190 | } |
2b690f0a LR |
191 | } |
192 | ||
193 | static void print_country(const uint8_t type, uint8_t len, const uint8_t *data) | |
194 | { | |
195 | printf(" %.*s", 2, data); | |
196 | ||
197 | printf("\tEnvironment: %s\n", country_env_str(data[2])); | |
198 | ||
199 | data += 3; | |
200 | len -= 3; | |
201 | ||
202 | if (len < 3) { | |
203 | printf("\t\tNo country IE triplets present\n"); | |
204 | return; | |
205 | } | |
206 | ||
207 | while (len >= 3) { | |
208 | int end_channel; | |
72725719 | 209 | union ieee80211_country_ie_triplet *triplet = (void *) data; |
2b690f0a LR |
210 | |
211 | if (triplet->ext.reg_extension_id >= IEEE80211_COUNTRY_EXTENSION_ID) { | |
212 | printf("\t\tExtension ID: %d Regulatory Class: %d Coverage class: %d (up to %dm)\n", | |
213 | triplet->ext.reg_extension_id, | |
214 | triplet->ext.reg_class, | |
215 | triplet->ext.coverage_class, | |
216 | triplet->ext.coverage_class * 450); | |
217 | ||
218 | data += 3; | |
219 | len -= 3; | |
220 | continue; | |
221 | } | |
222 | ||
223 | /* 2 GHz */ | |
224 | if (triplet->chans.first_channel <= 14) | |
225 | end_channel = triplet->chans.first_channel + (triplet->chans.num_channels - 1); | |
226 | else | |
227 | end_channel = triplet->chans.first_channel + (4 * (triplet->chans.num_channels - 1)); | |
228 | ||
a9859d30 | 229 | printf("\t\tChannels [%d - %d] @ %d dBm\n", triplet->chans.first_channel, end_channel, triplet->chans.max_power); |
2b690f0a LR |
230 | |
231 | data += 3; | |
232 | len -= 3; | |
233 | } | |
234 | ||
235 | return; | |
b7e8fa37 MH |
236 | } |
237 | ||
d1563a1b MH |
238 | static void print_powerconstraint(const uint8_t type, uint8_t len, const uint8_t *data) |
239 | { | |
240 | printf(" %d dB\n", data[0]); | |
241 | } | |
242 | ||
83b4934c | 243 | static void print_erp(const uint8_t type, uint8_t len, const uint8_t *data) |
fc4d1484 MH |
244 | { |
245 | if (data[0] == 0x00) | |
83b4934c | 246 | printf(" <no flags>"); |
fc4d1484 MH |
247 | if (data[0] & 0x01) |
248 | printf(" NonERP_Present"); | |
249 | if (data[0] & 0x02) | |
250 | printf(" Use_Protection"); | |
251 | if (data[0] & 0x04) | |
252 | printf(" Barker_Preamble_Mode"); | |
253 | printf("\n"); | |
254 | } | |
255 | ||
83b4934c | 256 | static void print_cipher(const uint8_t *data) |
857d966e | 257 | { |
3bd60ef1 | 258 | if (memcmp(data, ms_oui, 3) == 0) { |
857d966e | 259 | switch (data[3]) { |
510e0e2f | 260 | case 0: |
857d966e MH |
261 | printf("Use group cipher suite"); |
262 | break; | |
510e0e2f | 263 | case 1: |
857d966e MH |
264 | printf("WEP-40"); |
265 | break; | |
510e0e2f | 266 | case 2: |
857d966e MH |
267 | printf("TKIP"); |
268 | break; | |
510e0e2f | 269 | case 4: |
857d966e MH |
270 | printf("CCMP"); |
271 | break; | |
510e0e2f | 272 | case 5: |
857d966e MH |
273 | printf("WEP-104"); |
274 | break; | |
275 | default: | |
332769c6 | 276 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 277 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
278 | break; |
279 | } | |
280 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
281 | switch (data[3]) { | |
510e0e2f | 282 | case 0: |
857d966e MH |
283 | printf("Use group cipher suite"); |
284 | break; | |
510e0e2f | 285 | case 1: |
857d966e MH |
286 | printf("WEP-40"); |
287 | break; | |
510e0e2f | 288 | case 2: |
857d966e MH |
289 | printf("TKIP"); |
290 | break; | |
510e0e2f | 291 | case 4: |
857d966e MH |
292 | printf("CCMP"); |
293 | break; | |
510e0e2f | 294 | case 5: |
857d966e MH |
295 | printf("WEP-104"); |
296 | break; | |
510e0e2f | 297 | case 6: |
857d966e MH |
298 | printf("AES-128-CMAC"); |
299 | break; | |
300 | default: | |
332769c6 | 301 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 302 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
303 | break; |
304 | } | |
305 | } else | |
332769c6 | 306 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 307 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
308 | } |
309 | ||
83b4934c | 310 | static void print_auth(const uint8_t *data) |
857d966e | 311 | { |
3bd60ef1 | 312 | if (memcmp(data, ms_oui, 3) == 0) { |
857d966e | 313 | switch (data[3]) { |
510e0e2f | 314 | case 1: |
857d966e MH |
315 | printf("IEEE 802.1X"); |
316 | break; | |
510e0e2f | 317 | case 2: |
857d966e MH |
318 | printf("PSK"); |
319 | break; | |
320 | default: | |
332769c6 | 321 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 322 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
323 | break; |
324 | } | |
325 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
326 | switch (data[3]) { | |
510e0e2f | 327 | case 1: |
857d966e MH |
328 | printf("IEEE 802.1X"); |
329 | break; | |
510e0e2f | 330 | case 2: |
857d966e MH |
331 | printf("PSK"); |
332 | break; | |
0fe1c415 JB |
333 | case 3: |
334 | printf("FT/IEEE 802.1X"); | |
335 | break; | |
336 | case 4: | |
337 | printf("FT/PSK"); | |
338 | break; | |
339 | case 5: | |
340 | printf("IEEE 802.1X/SHA-256"); | |
341 | break; | |
342 | case 6: | |
343 | printf("PSK/SHA-256"); | |
344 | break; | |
857d966e | 345 | default: |
332769c6 | 346 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 347 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
348 | break; |
349 | } | |
350 | } else | |
332769c6 | 351 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 352 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
353 | } |
354 | ||
83b4934c JB |
355 | static void print_rsn_ie(const char *defcipher, const char *defauth, |
356 | uint8_t len, const uint8_t *data) | |
857d966e MH |
357 | { |
358 | bool first = true; | |
359 | __u16 version, count, capa; | |
360 | int i; | |
361 | ||
857d966e MH |
362 | version = data[0] + (data[1] << 8); |
363 | tab_on_first(&first); | |
364 | printf("\t * Version: %d\n", version); | |
365 | ||
366 | data += 2; | |
367 | len -= 2; | |
368 | ||
369 | if (len < 4) { | |
370 | tab_on_first(&first); | |
371 | printf("\t * Group cipher: %s\n", defcipher); | |
372 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
373 | return; | |
374 | } | |
375 | ||
376 | tab_on_first(&first); | |
377 | printf("\t * Group cipher: "); | |
378 | print_cipher(data); | |
379 | printf("\n"); | |
380 | ||
381 | data += 4; | |
382 | len -= 4; | |
383 | ||
384 | if (len < 2) { | |
385 | tab_on_first(&first); | |
386 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
387 | return; | |
388 | } | |
389 | ||
390 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
391 | if (2 + (count * 4) > len) |
392 | goto invalid; | |
393 | ||
857d966e MH |
394 | tab_on_first(&first); |
395 | printf("\t * Pairwise ciphers:"); | |
31d477fb | 396 | for (i = 0; i < count; i++) { |
857d966e MH |
397 | printf(" "); |
398 | print_cipher(data + 2 + (i * 4)); | |
399 | } | |
400 | printf("\n"); | |
401 | ||
402 | data += 2 + (count * 4); | |
403 | len -= 2 + (count * 4); | |
404 | ||
405 | if (len < 2) { | |
406 | tab_on_first(&first); | |
407 | printf("\t * Authentication suites: %s\n", defauth); | |
408 | return; | |
409 | } | |
410 | ||
411 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
412 | if (2 + (count * 4) > len) |
413 | goto invalid; | |
414 | ||
857d966e MH |
415 | tab_on_first(&first); |
416 | printf("\t * Authentication suites:"); | |
83b4934c | 417 | for (i = 0; i < count; i++) { |
857d966e MH |
418 | printf(" "); |
419 | print_auth(data + 2 + (i * 4)); | |
420 | } | |
421 | printf("\n"); | |
422 | ||
423 | data += 2 + (count * 4); | |
424 | len -= 2 + (count * 4); | |
425 | ||
6a4f24e8 JB |
426 | if (len >= 2) { |
427 | capa = data[0] | (data[1] << 8); | |
428 | tab_on_first(&first); | |
cadbe89a JB |
429 | printf("\t * Capabilities:"); |
430 | if (capa & 0x0001) | |
431 | printf(" PreAuth"); | |
432 | if (capa & 0x0002) | |
433 | printf(" NoPairwise"); | |
434 | switch ((capa & 0x000c) >> 2) { | |
435 | case 0: | |
436 | break; | |
437 | case 1: | |
438 | printf(" 2-PTKSA-RC"); | |
439 | break; | |
440 | case 2: | |
441 | printf(" 4-PTKSA-RC"); | |
442 | break; | |
443 | case 3: | |
444 | printf(" 16-PTKSA-RC"); | |
445 | break; | |
446 | } | |
447 | switch ((capa & 0x0030) >> 4) { | |
448 | case 0: | |
449 | break; | |
450 | case 1: | |
451 | printf(" 2-GTKSA-RC"); | |
452 | break; | |
453 | case 2: | |
454 | printf(" 4-GTKSA-RC"); | |
455 | break; | |
456 | case 3: | |
457 | printf(" 16-GTKSA-RC"); | |
458 | break; | |
459 | } | |
460 | if (capa & 0x0040) | |
461 | printf(" MFP-required"); | |
462 | if (capa & 0x0080) | |
463 | printf(" MFP-capable"); | |
464 | if (capa & 0x0200) | |
465 | printf(" Peerkey-enabled"); | |
466 | if (capa & 0x0400) | |
467 | printf(" SPP-AMSDU-capable"); | |
468 | if (capa & 0x0800) | |
469 | printf(" SPP-AMSDU-required"); | |
470 | printf(" (0x%.4x)\n", capa); | |
6a4f24e8 JB |
471 | data += 2; |
472 | len -= 2; | |
473 | } | |
31d477fb | 474 | |
5ba3f523 JB |
475 | if (len >= 2) { |
476 | int pmkid_count = data[0] | (data[1] << 8); | |
477 | ||
478 | if (len >= 2 + 16 * pmkid_count) { | |
479 | tab_on_first(&first); | |
480 | printf("\t * %d PMKIDs\n", pmkid_count); | |
481 | /* not printing PMKID values */ | |
482 | data += 2 + 16 * pmkid_count; | |
483 | len -= 2 + 16 * pmkid_count; | |
484 | } else | |
485 | goto invalid; | |
486 | } | |
487 | ||
488 | if (len >= 4) { | |
489 | tab_on_first(&first); | |
490 | printf("\t * Group mgmt cipher suite: "); | |
491 | print_cipher(data); | |
492 | printf("\n"); | |
493 | data += 4; | |
494 | len -= 4; | |
495 | } | |
496 | ||
cadbe89a | 497 | invalid: |
31d477fb MH |
498 | if (len != 0) { |
499 | printf("\t\t * bogus tail data (%d):", len); | |
500 | while (len) { | |
501 | printf(" %.2x", *data); | |
502 | data++; | |
503 | len--; | |
504 | } | |
505 | printf("\n"); | |
506 | } | |
857d966e MH |
507 | } |
508 | ||
83b4934c | 509 | static void print_rsn(const uint8_t type, uint8_t len, const uint8_t *data) |
857d966e | 510 | { |
83b4934c | 511 | print_rsn_ie("CCMP", "IEEE 802.1X", len, data); |
857d966e MH |
512 | } |
513 | ||
0c445c24 LR |
514 | static void print_ht_capa(const uint8_t type, uint8_t len, const uint8_t *data) |
515 | { | |
357c1a5d | 516 | printf("\n"); |
7ddfb679 JB |
517 | print_ht_capability(data[0] | (data[1] << 8)); |
518 | print_ampdu_length(data[2] & 3); | |
c79c7464 | 519 | print_ampdu_spacing((data[2] >> 2) & 7); |
7ddfb679 | 520 | print_ht_mcs(data + 3); |
0c445c24 LR |
521 | } |
522 | ||
be7602fb JB |
523 | static void print_ht_op(const uint8_t type, uint8_t len, const uint8_t *data) |
524 | { | |
525 | static const char *offset[4] = { | |
526 | "no secondary", | |
527 | "above", | |
528 | "[reserved!]", | |
529 | "below", | |
530 | }; | |
531 | static const char *protection[4] = { | |
532 | "no", | |
533 | "nonmember", | |
534 | "20 MHz", | |
535 | "non-HT mixed", | |
536 | }; | |
537 | static const char *sta_chan_width[2] = { | |
538 | "20 MHz", | |
539 | "any", | |
540 | }; | |
541 | ||
542 | printf("\n"); | |
543 | printf("\t\t * primary channel: %d\n", data[0]); | |
544 | printf("\t\t * secondary channel offset: %s\n", | |
545 | offset[data[1] & 0x3]); | |
546 | printf("\t\t * STA channel width: %s\n", sta_chan_width[(data[1] & 0x4)>>2]); | |
547 | printf("\t\t * RIFS: %d\n", (data[1] & 0x8)>>3); | |
548 | printf("\t\t * HT protection: %s\n", protection[data[2] & 0x3]); | |
549 | printf("\t\t * non-GF present: %d\n", (data[2] & 0x4) >> 2); | |
550 | printf("\t\t * OBSS non-GF present: %d\n", (data[2] & 0x10) >> 4); | |
551 | printf("\t\t * dual beacon: %d\n", (data[4] & 0x40) >> 6); | |
552 | printf("\t\t * dual CTS protection: %d\n", (data[4] & 0x80) >> 7); | |
553 | printf("\t\t * STBC beacon: %d\n", data[5] & 0x1); | |
554 | printf("\t\t * L-SIG TXOP Prot: %d\n", (data[5] & 0x2) >> 1); | |
555 | printf("\t\t * PCO active: %d\n", (data[5] & 0x4) >> 2); | |
556 | printf("\t\t * PCO phase: %d\n", (data[5] & 0x8) >> 3); | |
557 | } | |
558 | ||
83b4934c | 559 | static void print_capabilities(const uint8_t type, uint8_t len, const uint8_t *data) |
9b880b00 | 560 | { |
31d2d259 JB |
561 | int i, base, bit; |
562 | bool first = true; | |
563 | ||
564 | ||
565 | for (i = 0; i < len; i++) { | |
566 | base = i * 8; | |
567 | ||
568 | for (bit = 0; bit < 8; bit++) { | |
569 | if (!(data[i] & (1 << bit))) | |
570 | continue; | |
571 | ||
572 | if (!first) | |
573 | printf(","); | |
574 | else | |
575 | first = false; | |
576 | ||
577 | switch (bit + base) { | |
578 | case 0: | |
579 | printf(" HT Information Exchange Supported"); | |
580 | break; | |
581 | case 1: | |
582 | printf(" On-demand Beacon"); | |
583 | break; | |
584 | case 2: | |
585 | printf(" Extended Channel Switching"); | |
586 | break; | |
587 | case 3: | |
588 | printf(" Wave Indication"); | |
589 | break; | |
590 | case 4: | |
591 | printf(" PSMP Capability"); | |
592 | break; | |
593 | case 5: | |
594 | printf(" Service Interval Granularity"); | |
595 | break; | |
596 | case 6: | |
597 | printf(" S-PSMP Capability"); | |
598 | break; | |
599 | default: | |
600 | printf(" %d", bit); | |
601 | break; | |
602 | } | |
603 | } | |
604 | } | |
9b880b00 | 605 | |
9b880b00 MH |
606 | printf("\n"); |
607 | } | |
608 | ||
575280cc JM |
609 | static void print_tim(const uint8_t type, uint8_t len, const uint8_t *data) |
610 | { | |
611 | printf(" DTIM Count %u DTIM Period %u Bitmap Control 0x%x " | |
612 | "Bitmap[0] 0x%x", | |
613 | data[0], data[1], data[2], data[3]); | |
614 | if (len - 4) | |
615 | printf(" (+ %u octet%s)", len - 4, len - 4 == 1 ? "" : "s"); | |
616 | printf("\n"); | |
617 | } | |
618 | ||
83b4934c JB |
619 | struct ie_print { |
620 | const char *name; | |
621 | void (*print)(const uint8_t type, uint8_t len, const uint8_t *data); | |
622 | uint8_t minlen, maxlen; | |
febeb0c0 | 623 | uint8_t flags; |
764fe753 JB |
624 | }; |
625 | ||
83b4934c JB |
626 | static void print_ie(const struct ie_print *p, const uint8_t type, |
627 | uint8_t len, const uint8_t *data) | |
4673a894 | 628 | { |
83b4934c JB |
629 | int i; |
630 | ||
631 | if (!p->print) | |
632 | return; | |
633 | ||
634 | printf("\t%s:", p->name); | |
635 | if (len < p->minlen || len > p->maxlen) { | |
636 | if (len > 1) { | |
637 | printf(" <invalid: %d bytes:", len); | |
638 | for (i = 0; i < len; i++) | |
639 | printf(" %.02x", data[i]); | |
640 | printf(">\n"); | |
641 | } else if (len) | |
642 | printf(" <invalid: 1 byte: %.02x>\n", data[0]); | |
643 | else | |
644 | printf(" <invalid: no data>\n"); | |
645 | return; | |
646 | } | |
647 | ||
648 | p->print(type, len, data); | |
649 | } | |
650 | ||
651 | #define PRINT_IGN { \ | |
652 | .name = "IGNORE", \ | |
653 | .print = NULL, \ | |
654 | .minlen = 0, \ | |
655 | .maxlen = 255, \ | |
4673a894 JB |
656 | } |
657 | ||
83b4934c | 658 | static const struct ie_print ieprinters[] = { |
febeb0c0 JB |
659 | [0] = { "SSID", print_ssid, 0, 32, BIT(PRINT_SCAN) | BIT(PRINT_LINK), }, |
660 | [1] = { "Supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
014d581a | 661 | [3] = { "DS Parameter set", print_ds, 1, 1, BIT(PRINT_SCAN), }, |
575280cc | 662 | [5] = { "TIM", print_tim, 4, 255, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
663 | [7] = { "Country", print_country, 3, 255, BIT(PRINT_SCAN), }, |
664 | [32] = { "Power constraint", print_powerconstraint, 1, 1, BIT(PRINT_SCAN), }, | |
665 | [42] = { "ERP", print_erp, 1, 255, BIT(PRINT_SCAN), }, | |
a2e61861 | 666 | [45] = { "HT capabilities", print_ht_capa, 26, 26, BIT(PRINT_SCAN), }, |
be7602fb | 667 | [61] = { "HT operation", print_ht_op, 22, 22, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
668 | [48] = { "RSN", print_rsn, 2, 255, BIT(PRINT_SCAN), }, |
669 | [50] = { "Extended supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
670 | [127] = { "Extended capabilities", print_capabilities, 0, 255, BIT(PRINT_SCAN), }, | |
83b4934c JB |
671 | }; |
672 | ||
673 | static void print_wifi_wpa(const uint8_t type, uint8_t len, const uint8_t *data) | |
674 | { | |
675 | print_rsn_ie("TKIP", "IEEE 802.1X", len, data); | |
676 | } | |
677 | ||
1cab57eb JB |
678 | static bool print_wifi_wmm_param(const uint8_t *data, uint8_t len) |
679 | { | |
680 | int i; | |
681 | static const char *aci_tbl[] = { "BE", "BK", "VI", "VO" }; | |
682 | ||
683 | if (len < 19) | |
684 | goto invalid; | |
685 | ||
686 | if (data[0] != 1) { | |
cee4fe20 | 687 | printf("Parameter: not version 1: "); |
1cab57eb JB |
688 | return false; |
689 | } | |
690 | ||
89ea706f | 691 | printf("\t * Parameter version 1"); |
1cab57eb JB |
692 | |
693 | data++; | |
694 | ||
695 | if (data[0] & 0x80) | |
89ea706f | 696 | printf("\n\t\t * u-APSD"); |
1cab57eb JB |
697 | |
698 | data += 2; | |
699 | ||
700 | for (i = 0; i < 4; i++) { | |
89ea706f | 701 | printf("\n\t\t * %s:", aci_tbl[(data[0] >> 5) & 3]); |
1cab57eb JB |
702 | if (data[4] & 0x10) |
703 | printf(" acm"); | |
704 | printf(" CW %d-%d", (1 << (data[1] & 0xf)) - 1, | |
705 | (1 << (data[1] >> 4)) - 1); | |
a2a4c265 | 706 | printf(", AIFSN %d", data[0] & 0xf); |
1cab57eb | 707 | if (data[2] | data[3]) |
cee4fe20 | 708 | printf(", TXOP %d usec", (data[2] + (data[3] << 8)) * 32); |
1cab57eb JB |
709 | data += 4; |
710 | } | |
711 | ||
712 | printf("\n"); | |
713 | return true; | |
714 | ||
715 | invalid: | |
716 | printf("invalid: "); | |
717 | return false; | |
718 | } | |
719 | ||
83b4934c | 720 | static void print_wifi_wmm(const uint8_t type, uint8_t len, const uint8_t *data) |
6ff0c93a MH |
721 | { |
722 | int i; | |
723 | ||
6ff0c93a MH |
724 | switch (data[0]) { |
725 | case 0x00: | |
83b4934c | 726 | printf(" information:"); |
6ff0c93a MH |
727 | break; |
728 | case 0x01: | |
1cab57eb JB |
729 | if (print_wifi_wmm_param(data + 1, len - 1)) |
730 | return; | |
6ff0c93a MH |
731 | break; |
732 | default: | |
83b4934c | 733 | printf(" type %d:", data[0]); |
6ff0c93a MH |
734 | break; |
735 | } | |
736 | ||
1cab57eb JB |
737 | for(i = 1; i < len; i++) |
738 | printf(" %.02x", data[i]); | |
6ff0c93a MH |
739 | printf("\n"); |
740 | } | |
741 | ||
a6816965 JM |
742 | static const char * wifi_wps_dev_passwd_id(uint16_t id) |
743 | { | |
744 | switch (id) { | |
745 | case 0: | |
746 | return "Default (PIN)"; | |
747 | case 1: | |
748 | return "User-specified"; | |
749 | case 2: | |
750 | return "Machine-specified"; | |
751 | case 3: | |
752 | return "Rekey"; | |
753 | case 4: | |
754 | return "PushButton"; | |
755 | case 5: | |
756 | return "Registrar-specified"; | |
757 | default: | |
758 | return "??"; | |
759 | } | |
760 | } | |
761 | ||
83b4934c | 762 | static void print_wifi_wps(const uint8_t type, uint8_t len, const uint8_t *data) |
4673a894 JB |
763 | { |
764 | bool first = true; | |
765 | __u16 subtype, sublen; | |
766 | ||
4673a894 JB |
767 | while (len >= 4) { |
768 | subtype = (data[0] << 8) + data[1]; | |
769 | sublen = (data[2] << 8) + data[3]; | |
770 | if (sublen > len) | |
771 | break; | |
772 | ||
773 | switch (subtype) { | |
774 | case 0x104a: | |
775 | tab_on_first(&first); | |
dffc6750 | 776 | printf("\t * Version: %d.%d\n", data[4] >> 4, data[4] & 0xF); |
4673a894 JB |
777 | break; |
778 | case 0x1011: | |
779 | tab_on_first(&first); | |
780 | printf("\t * Device name: %.*s\n", sublen, data + 4); | |
781 | break; | |
a6816965 JM |
782 | case 0x1012: { |
783 | uint16_t id; | |
784 | tab_on_first(&first); | |
785 | if (sublen != 2) { | |
786 | printf("\t * Device Password ID: (invalid " | |
787 | "length %d)\n", sublen); | |
788 | break; | |
789 | } | |
790 | id = data[4] << 8 | data[5]; | |
791 | printf("\t * Device Password ID: %u (%s)\n", | |
792 | id, wifi_wps_dev_passwd_id(id)); | |
793 | break; | |
794 | } | |
4673a894 JB |
795 | case 0x1021: |
796 | tab_on_first(&first); | |
797 | printf("\t * Manufacturer: %.*s\n", sublen, data + 4); | |
798 | break; | |
799 | case 0x1023: | |
800 | tab_on_first(&first); | |
801 | printf("\t * Model: %.*s\n", sublen, data + 4); | |
802 | break; | |
a6816965 JM |
803 | case 0x1024: |
804 | tab_on_first(&first); | |
805 | printf("\t * Model Number: %.*s\n", sublen, data + 4); | |
806 | break; | |
807 | case 0x103b: { | |
808 | __u8 val = data[4]; | |
809 | tab_on_first(&first); | |
810 | printf("\t * Response Type: %d%s\n", | |
811 | val, val == 3 ? " (AP)" : ""); | |
812 | break; | |
813 | } | |
814 | case 0x103c: { | |
815 | __u8 val = data[4]; | |
816 | tab_on_first(&first); | |
817 | printf("\t * RF Bands: 0x%x\n", val); | |
818 | break; | |
819 | } | |
820 | case 0x1041: { | |
821 | __u8 val = data[4]; | |
822 | tab_on_first(&first); | |
823 | printf("\t * Selected Registrar: 0x%x\n", val); | |
824 | break; | |
825 | } | |
826 | case 0x1042: | |
827 | tab_on_first(&first); | |
828 | printf("\t * Serial Number: %.*s\n", sublen, data + 4); | |
829 | break; | |
830 | case 0x1044: { | |
831 | __u8 val = data[4]; | |
832 | tab_on_first(&first); | |
833 | printf("\t * Wi-Fi Protected Setup State: %d%s%s\n", | |
834 | val, | |
835 | val == 1 ? " (Unconfigured)" : "", | |
836 | val == 2 ? " (Configured)" : ""); | |
837 | break; | |
838 | } | |
09fe09dc JB |
839 | case 0x1047: |
840 | tab_on_first(&first); | |
841 | printf("\t * UUID: "); | |
842 | if (sublen != 16) { | |
843 | printf("(invalid, length=%d)\n", sublen); | |
844 | break; | |
845 | } | |
846 | printf("%02x%02x%02x%02x-%02x%02x-%02x%02x-" | |
847 | "%02x%02x-%02x%02x%02x%02x%02x%02x\n", | |
848 | data[4], data[5], data[6], data[7], | |
849 | data[8], data[9], data[10], data[11], | |
850 | data[12], data[13], data[14], data[15], | |
851 | data[16], data[17], data[18], data[19]); | |
852 | break; | |
a6816965 JM |
853 | case 0x1054: { |
854 | tab_on_first(&first); | |
855 | if (sublen != 8) { | |
856 | printf("\t * Primary Device Type: (invalid " | |
857 | "length %d)\n", sublen); | |
858 | break; | |
859 | } | |
860 | printf("\t * Primary Device Type: " | |
861 | "%u-%02x%02x%02x%02x-%u\n", | |
862 | data[4] << 8 | data[5], | |
863 | data[6], data[7], data[8], data[9], | |
864 | data[10] << 8 | data[11]); | |
865 | break; | |
866 | } | |
7ee5a865 | 867 | case 0x1057: { |
fe31a22e | 868 | __u8 val = data[4]; |
7ee5a865 | 869 | tab_on_first(&first); |
fe31a22e | 870 | printf("\t * AP setup locked: 0x%.2x\n", val); |
7ee5a865 JB |
871 | break; |
872 | } | |
a6816965 JM |
873 | case 0x1008: |
874 | case 0x1053: { | |
4673a894 JB |
875 | __u16 meth = (data[4] << 8) + data[5]; |
876 | bool comma = false; | |
877 | tab_on_first(&first); | |
a6816965 JM |
878 | printf("\t * %sConfig methods:", |
879 | subtype == 0x1053 ? "Selected Registrar ": ""); | |
4673a894 JB |
880 | #define T(bit, name) do { \ |
881 | if (meth & (1<<bit)) { \ | |
882 | if (comma) \ | |
883 | printf(","); \ | |
884 | comma = true; \ | |
885 | printf(" " name); \ | |
886 | } } while (0) | |
887 | T(0, "USB"); | |
888 | T(1, "Ethernet"); | |
889 | T(2, "Label"); | |
890 | T(3, "Display"); | |
891 | T(4, "Ext. NFC"); | |
892 | T(5, "Int. NFC"); | |
893 | T(6, "NFC Intf."); | |
894 | T(7, "PBC"); | |
895 | T(8, "Keypad"); | |
896 | printf("\n"); | |
897 | break; | |
898 | #undef T | |
899 | } | |
2650d46b JB |
900 | default: { |
901 | const __u8 *subdata = data + 4; | |
902 | __u16 tmplen = sublen; | |
903 | ||
904 | tab_on_first(&first); | |
905 | printf("\t * Unknown TLV (%#.4x, %d bytes):", | |
906 | subtype, tmplen); | |
907 | while (tmplen) { | |
908 | printf(" %.2x", *subdata); | |
909 | subdata++; | |
910 | tmplen--; | |
911 | } | |
912 | printf("\n"); | |
4673a894 JB |
913 | break; |
914 | } | |
2650d46b | 915 | } |
4673a894 JB |
916 | |
917 | data += sublen + 4; | |
918 | len -= sublen + 4; | |
919 | } | |
920 | ||
921 | if (len != 0) { | |
922 | printf("\t\t * bogus tail data (%d):", len); | |
923 | while (len) { | |
924 | printf(" %.2x", *data); | |
925 | data++; | |
926 | len--; | |
927 | } | |
928 | printf("\n"); | |
929 | } | |
930 | } | |
931 | ||
83b4934c | 932 | static const struct ie_print wifiprinters[] = { |
febeb0c0 JB |
933 | [1] = { "WPA", print_wifi_wpa, 2, 255, BIT(PRINT_SCAN), }, |
934 | [2] = { "WMM", print_wifi_wmm, 1, 255, BIT(PRINT_SCAN), }, | |
935 | [4] = { "WPS", print_wifi_wps, 0, 255, BIT(PRINT_SCAN), }, | |
4673a894 JB |
936 | }; |
937 | ||
9a22374a JB |
938 | static inline void print_p2p(const uint8_t type, uint8_t len, const uint8_t *data) |
939 | { | |
940 | bool first = true; | |
941 | __u8 subtype; | |
942 | __u16 sublen; | |
943 | ||
944 | while (len >= 3) { | |
945 | subtype = data[0]; | |
946 | sublen = (data[2] << 8) + data[1]; | |
947 | ||
948 | if (sublen > len - 3) | |
949 | break; | |
950 | ||
951 | switch (subtype) { | |
952 | case 0x02: /* capability */ | |
953 | tab_on_first(&first); | |
954 | if (sublen < 2) { | |
955 | printf("\t * malformed capability\n"); | |
956 | break; | |
957 | } | |
958 | printf("\t * Group capa: 0x%.2x, Device capa: 0x%.2x\n", | |
959 | data[3], data[4]); | |
960 | break; | |
961 | case 0x0d: /* device info */ | |
962 | if (sublen < 6 + 2 + 8 + 1) { | |
963 | printf("\t * malformed device info\n"); | |
964 | break; | |
965 | } | |
966 | /* fall through for now */ | |
967 | case 0x00: /* status */ | |
968 | case 0x01: /* minor reason */ | |
969 | case 0x03: /* device ID */ | |
970 | case 0x04: /* GO intent */ | |
971 | case 0x05: /* configuration timeout */ | |
972 | case 0x06: /* listen channel */ | |
973 | case 0x07: /* group BSSID */ | |
974 | case 0x08: /* ext listen timing */ | |
975 | case 0x09: /* intended interface address */ | |
976 | case 0x0a: /* manageability */ | |
977 | case 0x0b: /* channel list */ | |
978 | case 0x0c: /* NoA */ | |
979 | case 0x0e: /* group info */ | |
980 | case 0x0f: /* group ID */ | |
981 | case 0x10: /* interface */ | |
982 | case 0x11: /* operating channel */ | |
983 | case 0x12: /* invitation flags */ | |
984 | case 0xdd: /* vendor specific */ | |
985 | default: { | |
986 | const __u8 *subdata = data + 4; | |
987 | __u16 tmplen = sublen; | |
988 | ||
989 | tab_on_first(&first); | |
990 | printf("\t * Unknown TLV (%#.2x, %d bytes):", | |
991 | subtype, tmplen); | |
992 | while (tmplen) { | |
993 | printf(" %.2x", *subdata); | |
994 | subdata++; | |
995 | tmplen--; | |
996 | } | |
997 | printf("\n"); | |
998 | break; | |
999 | } | |
1000 | } | |
1001 | ||
1002 | data += sublen + 3; | |
1003 | len -= sublen + 3; | |
1004 | } | |
1005 | ||
1006 | if (len != 0) { | |
1007 | tab_on_first(&first); | |
1008 | printf("\t * bogus tail data (%d):", len); | |
1009 | while (len) { | |
1010 | printf(" %.2x", *data); | |
1011 | data++; | |
1012 | len--; | |
1013 | } | |
1014 | printf("\n"); | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | static const struct ie_print wfa_printers[] = { | |
1019 | [9] = { "P2P", print_p2p, 2, 255, BIT(PRINT_SCAN), }, | |
1020 | }; | |
1021 | ||
764fe753 | 1022 | static void print_vendor(unsigned char len, unsigned char *data, |
febeb0c0 | 1023 | bool unknown, enum print_ie_type ptype) |
3563f4c5 JB |
1024 | { |
1025 | int i; | |
1026 | ||
fbf80af5 | 1027 | if (len < 3) { |
4673a894 | 1028 | printf("\tVendor specific: <too short> data:"); |
fbf80af5 JB |
1029 | for(i = 0; i < len; i++) |
1030 | printf(" %.02x", data[i]); | |
1031 | printf("\n"); | |
1032 | return; | |
1033 | } | |
1034 | ||
3bd60ef1 | 1035 | if (len >= 4 && memcmp(data, ms_oui, 3) == 0) { |
febeb0c0 JB |
1036 | if (data[3] < ARRAY_SIZE(wifiprinters) && |
1037 | wifiprinters[data[3]].name && | |
1038 | wifiprinters[data[3]].flags & BIT(ptype)) { | |
83b4934c JB |
1039 | print_ie(&wifiprinters[data[3]], data[3], len - 4, data + 4); |
1040 | return; | |
1041 | } | |
febeb0c0 | 1042 | if (!unknown) |
4673a894 | 1043 | return; |
3bd60ef1 | 1044 | printf("\tMS/WiFi %#.2x, data:", data[3]); |
4673a894 JB |
1045 | for(i = 0; i < len - 4; i++) |
1046 | printf(" %.02x", data[i + 4]); | |
1047 | printf("\n"); | |
1048 | return; | |
1049 | } | |
1050 | ||
9a22374a JB |
1051 | if (len >= 4 && memcmp(data, wfa_oui, 3) == 0) { |
1052 | if (data[3] < ARRAY_SIZE(wfa_printers) && | |
1053 | wfa_printers[data[3]].name && | |
1054 | wfa_printers[data[3]].flags & BIT(ptype)) { | |
1055 | print_ie(&wfa_printers[data[3]], data[3], len - 4, data + 4); | |
1056 | return; | |
1057 | } | |
1058 | if (!unknown) | |
1059 | return; | |
1060 | printf("\tWFA %#.2x, data:", data[3]); | |
1061 | for(i = 0; i < len - 4; i++) | |
1062 | printf(" %.02x", data[i + 4]); | |
1063 | printf("\n"); | |
1064 | return; | |
1065 | } | |
1066 | ||
febeb0c0 | 1067 | if (!unknown) |
764fe753 JB |
1068 | return; |
1069 | ||
fbf80af5 | 1070 | printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data:", |
3563f4c5 | 1071 | data[0], data[1], data[2]); |
fbf80af5 JB |
1072 | for (i = 3; i < len; i++) |
1073 | printf(" %.2x", data[i]); | |
3563f4c5 JB |
1074 | printf("\n"); |
1075 | } | |
1076 | ||
febeb0c0 JB |
1077 | void print_ies(unsigned char *ie, int ielen, bool unknown, |
1078 | enum print_ie_type ptype) | |
3563f4c5 JB |
1079 | { |
1080 | while (ielen >= 2 && ielen >= ie[1]) { | |
febeb0c0 JB |
1081 | if (ie[0] < ARRAY_SIZE(ieprinters) && |
1082 | ieprinters[ie[0]].name && | |
1083 | ieprinters[ie[0]].flags & BIT(ptype)) { | |
83b4934c | 1084 | print_ie(&ieprinters[ie[0]], ie[0], ie[1], ie + 2); |
764fe753 | 1085 | } else if (ie[0] == 221 /* vendor */) { |
febeb0c0 JB |
1086 | print_vendor(ie[1], ie + 2, unknown, ptype); |
1087 | } else if (unknown) { | |
3563f4c5 JB |
1088 | int i; |
1089 | ||
8086b700 | 1090 | printf("\tUnknown IE (%d):", ie[0]); |
3563f4c5 | 1091 | for (i=0; i<ie[1]; i++) |
8086b700 | 1092 | printf(" %.2x", ie[2+i]); |
3563f4c5 JB |
1093 | printf("\n"); |
1094 | } | |
1095 | ielen -= ie[1] + 2; | |
1096 | ie += ie[1] + 2; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | static int print_bss_handler(struct nl_msg *msg, void *arg) | |
1101 | { | |
1102 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1103 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1104 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
1105 | char mac_addr[20], dev[20]; | |
1106 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
1107 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
1108 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
1109 | [NL80211_BSS_BSSID] = { }, | |
1110 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
1111 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
1112 | [NL80211_BSS_INFORMATION_ELEMENTS] = { }, | |
f2e17e1f JB |
1113 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, |
1114 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
a56117a6 | 1115 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
c04a78df | 1116 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
575280cc | 1117 | [NL80211_BSS_BEACON_IES] = { }, |
3563f4c5 | 1118 | }; |
febeb0c0 | 1119 | struct scan_params *params = arg; |
1c5bcd9c | 1120 | int show = params->show_both_ie_sets ? 2 : 1; |
3563f4c5 JB |
1121 | |
1122 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1123 | genlmsg_attrlen(gnlh, 0), NULL); | |
1124 | ||
1125 | if (!tb[NL80211_ATTR_BSS]) { | |
5fe70c0e | 1126 | fprintf(stderr, "bss info missing!\n"); |
3563f4c5 JB |
1127 | return NL_SKIP; |
1128 | } | |
1129 | if (nla_parse_nested(bss, NL80211_BSS_MAX, | |
1130 | tb[NL80211_ATTR_BSS], | |
1131 | bss_policy)) { | |
5fe70c0e | 1132 | fprintf(stderr, "failed to parse nested attributes!\n"); |
3563f4c5 JB |
1133 | return NL_SKIP; |
1134 | } | |
1135 | ||
1136 | if (!bss[NL80211_BSS_BSSID]) | |
1137 | return NL_SKIP; | |
1138 | ||
1139 | mac_addr_n2a(mac_addr, nla_data(bss[NL80211_BSS_BSSID])); | |
1140 | if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), dev); | |
a56117a6 JB |
1141 | printf("BSS %s (on %s)", mac_addr, dev); |
1142 | ||
1143 | if (bss[NL80211_BSS_STATUS]) { | |
1144 | switch (nla_get_u32(bss[NL80211_BSS_STATUS])) { | |
1145 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
1146 | printf(" -- authenticated"); | |
1147 | break; | |
1148 | case NL80211_BSS_STATUS_ASSOCIATED: | |
1149 | printf(" -- associated"); | |
1150 | break; | |
1151 | case NL80211_BSS_STATUS_IBSS_JOINED: | |
1152 | printf(" -- joined"); | |
1153 | break; | |
1154 | default: | |
1155 | printf(" -- unknown status: %d", | |
1156 | nla_get_u32(bss[NL80211_BSS_STATUS])); | |
1157 | break; | |
1158 | } | |
1159 | } | |
1160 | printf("\n"); | |
3563f4c5 | 1161 | |
e7109a8a JB |
1162 | if (bss[NL80211_BSS_TSF]) { |
1163 | unsigned long long tsf; | |
1164 | tsf = (unsigned long long)nla_get_u64(bss[NL80211_BSS_TSF]); | |
1165 | printf("\tTSF: %llu usec (%llud, %.2lld:%.2llu:%.2llu)\n", | |
1166 | tsf, tsf/1000/1000/60/60/24, (tsf/1000/1000/60/60) % 24, | |
1167 | (tsf/1000/1000/60) % 60, (tsf/1000/1000) % 60); | |
1168 | } | |
3563f4c5 JB |
1169 | if (bss[NL80211_BSS_FREQUENCY]) |
1170 | printf("\tfreq: %d\n", | |
1171 | nla_get_u32(bss[NL80211_BSS_FREQUENCY])); | |
1172 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
1173 | printf("\tbeacon interval: %d\n", | |
1174 | nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL])); | |
92a04ecd MH |
1175 | if (bss[NL80211_BSS_CAPABILITY]) { |
1176 | __u16 capa = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
1177 | printf("\tcapability:"); | |
1178 | if (capa & WLAN_CAPABILITY_ESS) | |
1179 | printf(" ESS"); | |
1180 | if (capa & WLAN_CAPABILITY_IBSS) | |
1181 | printf(" IBSS"); | |
1182 | if (capa & WLAN_CAPABILITY_PRIVACY) | |
1183 | printf(" Privacy"); | |
1184 | if (capa & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1185 | printf(" ShortPreamble"); | |
1186 | if (capa & WLAN_CAPABILITY_PBCC) | |
1187 | printf(" PBCC"); | |
1188 | if (capa & WLAN_CAPABILITY_CHANNEL_AGILITY) | |
1189 | printf(" ChannelAgility"); | |
1190 | if (capa & WLAN_CAPABILITY_SPECTRUM_MGMT) | |
1191 | printf(" SpectrumMgmt"); | |
1192 | if (capa & WLAN_CAPABILITY_QOS) | |
1193 | printf(" QoS"); | |
1194 | if (capa & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
1195 | printf(" ShortSlotTime"); | |
1196 | if (capa & WLAN_CAPABILITY_APSD) | |
1197 | printf(" APSD"); | |
1198 | if (capa & WLAN_CAPABILITY_DSSS_OFDM) | |
1199 | printf(" DSSS-OFDM"); | |
1200 | printf(" (0x%.4x)\n", capa); | |
1201 | } | |
f2e17e1f JB |
1202 | if (bss[NL80211_BSS_SIGNAL_MBM]) { |
1203 | int s = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); | |
1204 | printf("\tsignal: %d.%.2d dBm\n", s/100, s%100); | |
1205 | } | |
1206 | if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
1207 | unsigned char s = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
1208 | printf("\tsignal: %d/100\n", s); | |
1209 | } | |
c04a78df HS |
1210 | if (bss[NL80211_BSS_SEEN_MS_AGO]) { |
1211 | int age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
1212 | printf("\tlast seen: %d ms ago\n", age); | |
1213 | } | |
1c5bcd9c JB |
1214 | |
1215 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS] && show--) { | |
575280cc JM |
1216 | if (bss[NL80211_BSS_BEACON_IES]) |
1217 | printf("\tInformation elements from Probe Response " | |
1218 | "frame:\n"); | |
3563f4c5 | 1219 | print_ies(nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
764fe753 | 1220 | nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
febeb0c0 | 1221 | params->unknown, params->type); |
575280cc | 1222 | } |
1c5bcd9c | 1223 | if (bss[NL80211_BSS_BEACON_IES] && show--) { |
575280cc JM |
1224 | printf("\tInformation elements from Beacon frame:\n"); |
1225 | print_ies(nla_data(bss[NL80211_BSS_BEACON_IES]), | |
1226 | nla_len(bss[NL80211_BSS_BEACON_IES]), | |
1227 | params->unknown, params->type); | |
1228 | } | |
3563f4c5 JB |
1229 | |
1230 | return NL_SKIP; | |
1231 | } | |
1232 | ||
764fe753 | 1233 | static struct scan_params scan_params; |
3563f4c5 | 1234 | |
7c37a24d JB |
1235 | static int handle_scan_dump(struct nl80211_state *state, |
1236 | struct nl_cb *cb, | |
3563f4c5 JB |
1237 | struct nl_msg *msg, |
1238 | int argc, char **argv) | |
1239 | { | |
764fe753 JB |
1240 | if (argc > 1) |
1241 | return 1; | |
1242 | ||
1c5bcd9c JB |
1243 | memset(&scan_params, 0, sizeof(scan_params)); |
1244 | ||
764fe753 JB |
1245 | if (argc == 1 && !strcmp(argv[0], "-u")) |
1246 | scan_params.unknown = true; | |
575280cc JM |
1247 | else if (argc == 1 && !strcmp(argv[0], "-b")) |
1248 | scan_params.show_both_ie_sets = true; | |
764fe753 | 1249 | |
febeb0c0 JB |
1250 | scan_params.type = PRINT_SCAN; |
1251 | ||
764fe753 JB |
1252 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_bss_handler, |
1253 | &scan_params); | |
3563f4c5 JB |
1254 | return 0; |
1255 | } | |
a5fe4ef2 JB |
1256 | |
1257 | static int handle_scan_combined(struct nl80211_state *state, | |
1258 | struct nl_cb *cb, | |
1259 | struct nl_msg *msg, | |
1260 | int argc, char **argv) | |
1261 | { | |
559a1713 | 1262 | char **trig_argv; |
a5fe4ef2 JB |
1263 | static char *dump_argv[] = { |
1264 | NULL, | |
1265 | "scan", | |
1266 | "dump", | |
92649eab | 1267 | NULL, |
a5fe4ef2 JB |
1268 | }; |
1269 | static const __u32 cmds[] = { | |
1270 | NL80211_CMD_NEW_SCAN_RESULTS, | |
1271 | NL80211_CMD_SCAN_ABORTED, | |
1272 | }; | |
559a1713 | 1273 | int trig_argc, dump_argc, err; |
a5fe4ef2 | 1274 | |
559a1713 JB |
1275 | if (argc >= 3 && !strcmp(argv[2], "-u")) { |
1276 | dump_argc = 4; | |
1277 | dump_argv[3] = "-u"; | |
575280cc JM |
1278 | } else if (argc >= 3 && !strcmp(argv[2], "-b")) { |
1279 | dump_argc = 4; | |
1280 | dump_argv[3] = "-b"; | |
559a1713 JB |
1281 | } else |
1282 | dump_argc = 3; | |
1283 | ||
1284 | trig_argc = 3 + (argc - 2) + (3 - dump_argc); | |
1285 | trig_argv = calloc(trig_argc, sizeof(*trig_argv)); | |
1286 | if (!trig_argv) | |
1287 | return -ENOMEM; | |
a5fe4ef2 | 1288 | trig_argv[0] = argv[0]; |
559a1713 JB |
1289 | trig_argv[1] = "scan"; |
1290 | trig_argv[2] = "trigger"; | |
1291 | int i; | |
1292 | for (i = 0; i < argc - 2 - (dump_argc - 3); i++) | |
1293 | trig_argv[i + 3] = argv[i + 2 + (dump_argc - 3)]; | |
1294 | err = handle_cmd(state, II_NETDEV, trig_argc, trig_argv); | |
1295 | free(trig_argv); | |
a5fe4ef2 JB |
1296 | if (err) |
1297 | return err; | |
1298 | ||
61725dbe JB |
1299 | /* |
1300 | * WARNING: DO NOT COPY THIS CODE INTO YOUR APPLICATION | |
1301 | * | |
1302 | * This code has a bug, which requires creating a separate | |
1303 | * nl80211 socket to fix: | |
1304 | * It is possible for a NL80211_CMD_NEW_SCAN_RESULTS or | |
1305 | * NL80211_CMD_SCAN_ABORTED message to be sent by the kernel | |
1306 | * before (!) we listen to it, because we only start listening | |
1307 | * after we send our scan request. | |
1308 | * | |
1309 | * Doing it the other way around has a race condition as well, | |
1310 | * if you first open the events socket you may get a notification | |
1311 | * for a previous scan. | |
1312 | * | |
1313 | * The only proper way to fix this would be to listen to events | |
1314 | * before sending the command, and for the kernel to send the | |
1315 | * scan request along with the event, so that you can match up | |
1316 | * whether the scan you requested was finished or aborted (this | |
1317 | * may result in processing a scan that another application | |
1318 | * requested, but that doesn't seem to be a problem). | |
1319 | * | |
1320 | * Alas, the kernel doesn't do that (yet). | |
1321 | */ | |
1322 | ||
a5fe4ef2 JB |
1323 | if (listen_events(state, ARRAY_SIZE(cmds), cmds) == |
1324 | NL80211_CMD_SCAN_ABORTED) { | |
1325 | printf("scan aborted!\n"); | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | dump_argv[0] = argv[0]; | |
92649eab | 1330 | return handle_cmd(state, II_NETDEV, dump_argc, dump_argv); |
a5fe4ef2 | 1331 | } |
64797a7f | 1332 | TOPLEVEL(scan, "[-u] [freq <freq>*] [ies <hex as 00:11:..>] [ssid <ssid>*|passive]", 0, 0, |
6ca98d28 JB |
1333 | CIB_NETDEV, handle_scan_combined, |
1334 | "Scan on the given frequencies and probe for the given SSIDs\n" | |
1335 | "(or wildcard if not given) unless passive scanning is requested.\n" | |
64797a7f JB |
1336 | "If -u is specified print unknown data in the scan results.\n" |
1337 | "Specified (vendor) IEs must be well-formed."); | |
4698bfc2 JB |
1338 | COMMAND(scan, dump, "[-u]", |
1339 | NL80211_CMD_GET_SCAN, NLM_F_DUMP, CIB_NETDEV, handle_scan_dump, | |
1340 | "Dump the current scan results. If -u is specified, print unknown\n" | |
1341 | "data in scan results."); | |
64797a7f | 1342 | COMMAND(scan, trigger, "[freq <freq>*] [ies <hex as 00:11:..>] [ssid <ssid>*|passive]", |
4698bfc2 JB |
1343 | NL80211_CMD_TRIGGER_SCAN, 0, CIB_NETDEV, handle_scan, |
1344 | "Trigger a scan on the given frequencies with probing for the given\n" | |
1345 | "SSIDs (or wildcard if not given) unless passive scanning is requested."); |