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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; | |
fe862239 | 76 | int flags = 0; |
3563f4c5 JB |
77 | |
78 | ssids = nlmsg_alloc(); | |
79 | if (!ssids) | |
80 | return -ENOMEM; | |
559a1713 JB |
81 | |
82 | freqs = nlmsg_alloc(); | |
83 | if (!freqs) { | |
84 | nlmsg_free(ssids); | |
85 | return -ENOMEM; | |
86 | } | |
87 | ||
88 | for (i = 0; i < argc; i++) { | |
559a1713 JB |
89 | switch (parse) { |
90 | case NONE: | |
64797a7f JB |
91 | if (strcmp(argv[i], "freq") == 0) { |
92 | parse = FREQ; | |
93 | have_freqs = true; | |
94 | break; | |
95 | } else if (strcmp(argv[i], "ies") == 0) { | |
96 | parse = IES; | |
97 | break; | |
fe862239 SL |
98 | } else if (strcmp(argv[i], "lowpri") == 0) { |
99 | parse = NONE; | |
100 | flags |= NL80211_SCAN_FLAG_LOW_PRIORITY; | |
101 | break; | |
102 | } else if (strcmp(argv[i], "flush") == 0) { | |
103 | parse = NONE; | |
104 | flags |= NL80211_SCAN_FLAG_FLUSH; | |
105 | break; | |
ced94d5f AQ |
106 | } else if (strcmp(argv[i], "ap-force") == 0) { |
107 | parse = NONE; | |
108 | flags |= NL80211_SCAN_FLAG_AP; | |
109 | break; | |
64797a7f JB |
110 | } else if (strcmp(argv[i], "ssid") == 0) { |
111 | parse = SSID; | |
112 | have_ssids = true; | |
113 | break; | |
114 | } else if (strcmp(argv[i], "passive") == 0) { | |
115 | parse = DONE; | |
116 | passive = true; | |
117 | break; | |
118 | } | |
559a1713 JB |
119 | case DONE: |
120 | return 1; | |
121 | case FREQ: | |
122 | freq = strtoul(argv[i], &eptr, 10); | |
cc12e895 JB |
123 | if (eptr != argv[i] + strlen(argv[i])) { |
124 | /* failed to parse as number -- maybe a tag? */ | |
125 | i--; | |
126 | parse = NONE; | |
127 | continue; | |
128 | } | |
559a1713 | 129 | NLA_PUT_U32(freqs, i, freq); |
64797a7f JB |
130 | break; |
131 | case IES: | |
132 | ies = parse_hex(argv[i], &tmp); | |
133 | if (!ies) | |
134 | goto nla_put_failure; | |
135 | NLA_PUT(msg, NL80211_ATTR_IE, tmp, ies); | |
136 | free(ies); | |
137 | parse = NONE; | |
559a1713 JB |
138 | break; |
139 | case SSID: | |
140 | NLA_PUT(ssids, i, strlen(argv[i]), argv[i]); | |
141 | break; | |
142 | } | |
143 | } | |
144 | ||
145 | if (!have_ssids) | |
146 | NLA_PUT(ssids, 1, 0, ""); | |
147 | if (!passive) | |
148 | nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids); | |
149 | ||
150 | if (have_freqs) | |
151 | nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs); | |
fe862239 SL |
152 | if (flags) |
153 | NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, flags); | |
3563f4c5 JB |
154 | |
155 | err = 0; | |
156 | nla_put_failure: | |
157 | nlmsg_free(ssids); | |
559a1713 | 158 | nlmsg_free(freqs); |
3563f4c5 JB |
159 | return err; |
160 | } | |
3563f4c5 | 161 | |
857d966e MH |
162 | static void tab_on_first(bool *first) |
163 | { | |
164 | if (!*first) | |
165 | printf("\t"); | |
166 | else | |
167 | *first = false; | |
168 | } | |
169 | ||
83b4934c | 170 | static void print_ssid(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 171 | { |
83b4934c | 172 | printf(" "); |
748f8489 | 173 | print_ssid_escaped(len, data); |
3563f4c5 JB |
174 | printf("\n"); |
175 | } | |
176 | ||
ca159934 | 177 | #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126 |
1fd19c39 CL |
178 | #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127 |
179 | ||
83b4934c | 180 | static void print_supprates(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 JB |
181 | { |
182 | int i; | |
183 | ||
83b4934c | 184 | printf(" "); |
3563f4c5 | 185 | |
83b4934c | 186 | for (i = 0; i < len; i++) { |
3563f4c5 | 187 | int r = data[i] & 0x7f; |
1fd19c39 | 188 | |
ca159934 JB |
189 | if (r == BSS_MEMBERSHIP_SELECTOR_VHT_PHY && data[i] & 0x80) |
190 | printf("VHT"); | |
191 | else if (r == BSS_MEMBERSHIP_SELECTOR_HT_PHY && data[i] & 0x80) | |
1fd19c39 CL |
192 | printf("HT"); |
193 | else | |
194 | printf("%d.%d", r/2, 5*(r&1)); | |
195 | ||
196 | printf("%s ", data[i] & 0x80 ? "*" : ""); | |
3563f4c5 JB |
197 | } |
198 | printf("\n"); | |
199 | } | |
200 | ||
83b4934c | 201 | static void print_ds(const uint8_t type, uint8_t len, const uint8_t *data) |
3563f4c5 | 202 | { |
83b4934c | 203 | printf(" channel %d\n", data[0]); |
3563f4c5 JB |
204 | } |
205 | ||
2b690f0a | 206 | static const char *country_env_str(char environment) |
b7e8fa37 | 207 | { |
2b690f0a | 208 | switch (environment) { |
b7e8fa37 | 209 | case 'I': |
2b690f0a | 210 | return "Indoor only"; |
b7e8fa37 | 211 | case 'O': |
2b690f0a | 212 | return "Outdoor only"; |
b6c0d634 | 213 | case ' ': |
2b690f0a | 214 | return "Indoor/Outdoor"; |
b6c0d634 | 215 | default: |
2b690f0a | 216 | return "bogus"; |
b7e8fa37 | 217 | } |
2b690f0a LR |
218 | } |
219 | ||
220 | static void print_country(const uint8_t type, uint8_t len, const uint8_t *data) | |
221 | { | |
222 | printf(" %.*s", 2, data); | |
223 | ||
224 | printf("\tEnvironment: %s\n", country_env_str(data[2])); | |
225 | ||
226 | data += 3; | |
227 | len -= 3; | |
228 | ||
229 | if (len < 3) { | |
230 | printf("\t\tNo country IE triplets present\n"); | |
231 | return; | |
232 | } | |
233 | ||
234 | while (len >= 3) { | |
235 | int end_channel; | |
72725719 | 236 | union ieee80211_country_ie_triplet *triplet = (void *) data; |
2b690f0a LR |
237 | |
238 | if (triplet->ext.reg_extension_id >= IEEE80211_COUNTRY_EXTENSION_ID) { | |
239 | printf("\t\tExtension ID: %d Regulatory Class: %d Coverage class: %d (up to %dm)\n", | |
240 | triplet->ext.reg_extension_id, | |
241 | triplet->ext.reg_class, | |
242 | triplet->ext.coverage_class, | |
243 | triplet->ext.coverage_class * 450); | |
244 | ||
245 | data += 3; | |
246 | len -= 3; | |
247 | continue; | |
248 | } | |
249 | ||
250 | /* 2 GHz */ | |
251 | if (triplet->chans.first_channel <= 14) | |
252 | end_channel = triplet->chans.first_channel + (triplet->chans.num_channels - 1); | |
253 | else | |
254 | end_channel = triplet->chans.first_channel + (4 * (triplet->chans.num_channels - 1)); | |
255 | ||
a9859d30 | 256 | printf("\t\tChannels [%d - %d] @ %d dBm\n", triplet->chans.first_channel, end_channel, triplet->chans.max_power); |
2b690f0a LR |
257 | |
258 | data += 3; | |
259 | len -= 3; | |
260 | } | |
261 | ||
262 | return; | |
b7e8fa37 MH |
263 | } |
264 | ||
d1563a1b MH |
265 | static void print_powerconstraint(const uint8_t type, uint8_t len, const uint8_t *data) |
266 | { | |
267 | printf(" %d dB\n", data[0]); | |
268 | } | |
269 | ||
83b4934c | 270 | static void print_erp(const uint8_t type, uint8_t len, const uint8_t *data) |
fc4d1484 MH |
271 | { |
272 | if (data[0] == 0x00) | |
83b4934c | 273 | printf(" <no flags>"); |
fc4d1484 MH |
274 | if (data[0] & 0x01) |
275 | printf(" NonERP_Present"); | |
276 | if (data[0] & 0x02) | |
277 | printf(" Use_Protection"); | |
278 | if (data[0] & 0x04) | |
279 | printf(" Barker_Preamble_Mode"); | |
280 | printf("\n"); | |
281 | } | |
282 | ||
83b4934c | 283 | static void print_cipher(const uint8_t *data) |
857d966e | 284 | { |
3bd60ef1 | 285 | if (memcmp(data, ms_oui, 3) == 0) { |
857d966e | 286 | switch (data[3]) { |
510e0e2f | 287 | case 0: |
857d966e MH |
288 | printf("Use group cipher suite"); |
289 | break; | |
510e0e2f | 290 | case 1: |
857d966e MH |
291 | printf("WEP-40"); |
292 | break; | |
510e0e2f | 293 | case 2: |
857d966e MH |
294 | printf("TKIP"); |
295 | break; | |
510e0e2f | 296 | case 4: |
857d966e MH |
297 | printf("CCMP"); |
298 | break; | |
510e0e2f | 299 | case 5: |
857d966e MH |
300 | printf("WEP-104"); |
301 | break; | |
302 | default: | |
332769c6 | 303 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 304 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
305 | break; |
306 | } | |
307 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
308 | switch (data[3]) { | |
510e0e2f | 309 | case 0: |
857d966e MH |
310 | printf("Use group cipher suite"); |
311 | break; | |
510e0e2f | 312 | case 1: |
857d966e MH |
313 | printf("WEP-40"); |
314 | break; | |
510e0e2f | 315 | case 2: |
857d966e MH |
316 | printf("TKIP"); |
317 | break; | |
510e0e2f | 318 | case 4: |
857d966e MH |
319 | printf("CCMP"); |
320 | break; | |
510e0e2f | 321 | case 5: |
857d966e MH |
322 | printf("WEP-104"); |
323 | break; | |
510e0e2f | 324 | case 6: |
857d966e MH |
325 | printf("AES-128-CMAC"); |
326 | break; | |
a8b3da9d VK |
327 | case 8: |
328 | printf("GCMP"); | |
329 | break; | |
857d966e | 330 | default: |
332769c6 | 331 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 332 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
333 | break; |
334 | } | |
335 | } else | |
332769c6 | 336 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 337 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
338 | } |
339 | ||
83b4934c | 340 | static void print_auth(const uint8_t *data) |
857d966e | 341 | { |
3bd60ef1 | 342 | if (memcmp(data, ms_oui, 3) == 0) { |
857d966e | 343 | switch (data[3]) { |
510e0e2f | 344 | case 1: |
857d966e MH |
345 | printf("IEEE 802.1X"); |
346 | break; | |
510e0e2f | 347 | case 2: |
857d966e MH |
348 | printf("PSK"); |
349 | break; | |
350 | default: | |
332769c6 | 351 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 352 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
353 | break; |
354 | } | |
355 | } else if (memcmp(data, ieee80211_oui, 3) == 0) { | |
356 | switch (data[3]) { | |
510e0e2f | 357 | case 1: |
857d966e MH |
358 | printf("IEEE 802.1X"); |
359 | break; | |
510e0e2f | 360 | case 2: |
857d966e MH |
361 | printf("PSK"); |
362 | break; | |
0fe1c415 JB |
363 | case 3: |
364 | printf("FT/IEEE 802.1X"); | |
365 | break; | |
366 | case 4: | |
367 | printf("FT/PSK"); | |
368 | break; | |
369 | case 5: | |
370 | printf("IEEE 802.1X/SHA-256"); | |
371 | break; | |
372 | case 6: | |
373 | printf("PSK/SHA-256"); | |
374 | break; | |
857d966e | 375 | default: |
332769c6 | 376 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 377 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
378 | break; |
379 | } | |
380 | } else | |
332769c6 | 381 | printf("%.02x-%.02x-%.02x:%d", |
5594fd23 | 382 | data[0], data[1] ,data[2], data[3]); |
857d966e MH |
383 | } |
384 | ||
83b4934c JB |
385 | static void print_rsn_ie(const char *defcipher, const char *defauth, |
386 | uint8_t len, const uint8_t *data) | |
857d966e MH |
387 | { |
388 | bool first = true; | |
389 | __u16 version, count, capa; | |
390 | int i; | |
391 | ||
857d966e MH |
392 | version = data[0] + (data[1] << 8); |
393 | tab_on_first(&first); | |
394 | printf("\t * Version: %d\n", version); | |
395 | ||
396 | data += 2; | |
397 | len -= 2; | |
398 | ||
399 | if (len < 4) { | |
400 | tab_on_first(&first); | |
401 | printf("\t * Group cipher: %s\n", defcipher); | |
402 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
403 | return; | |
404 | } | |
405 | ||
406 | tab_on_first(&first); | |
407 | printf("\t * Group cipher: "); | |
408 | print_cipher(data); | |
409 | printf("\n"); | |
410 | ||
411 | data += 4; | |
412 | len -= 4; | |
413 | ||
414 | if (len < 2) { | |
415 | tab_on_first(&first); | |
416 | printf("\t * Pairwise ciphers: %s\n", defcipher); | |
417 | return; | |
418 | } | |
419 | ||
420 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
421 | if (2 + (count * 4) > len) |
422 | goto invalid; | |
423 | ||
857d966e MH |
424 | tab_on_first(&first); |
425 | printf("\t * Pairwise ciphers:"); | |
31d477fb | 426 | for (i = 0; i < count; i++) { |
857d966e MH |
427 | printf(" "); |
428 | print_cipher(data + 2 + (i * 4)); | |
429 | } | |
430 | printf("\n"); | |
431 | ||
432 | data += 2 + (count * 4); | |
433 | len -= 2 + (count * 4); | |
434 | ||
435 | if (len < 2) { | |
436 | tab_on_first(&first); | |
437 | printf("\t * Authentication suites: %s\n", defauth); | |
438 | return; | |
439 | } | |
440 | ||
441 | count = data[0] | (data[1] << 8); | |
31d477fb MH |
442 | if (2 + (count * 4) > len) |
443 | goto invalid; | |
444 | ||
857d966e MH |
445 | tab_on_first(&first); |
446 | printf("\t * Authentication suites:"); | |
83b4934c | 447 | for (i = 0; i < count; i++) { |
857d966e MH |
448 | printf(" "); |
449 | print_auth(data + 2 + (i * 4)); | |
450 | } | |
451 | printf("\n"); | |
452 | ||
453 | data += 2 + (count * 4); | |
454 | len -= 2 + (count * 4); | |
455 | ||
6a4f24e8 JB |
456 | if (len >= 2) { |
457 | capa = data[0] | (data[1] << 8); | |
458 | tab_on_first(&first); | |
cadbe89a JB |
459 | printf("\t * Capabilities:"); |
460 | if (capa & 0x0001) | |
461 | printf(" PreAuth"); | |
462 | if (capa & 0x0002) | |
463 | printf(" NoPairwise"); | |
464 | switch ((capa & 0x000c) >> 2) { | |
465 | case 0: | |
466 | break; | |
467 | case 1: | |
468 | printf(" 2-PTKSA-RC"); | |
469 | break; | |
470 | case 2: | |
471 | printf(" 4-PTKSA-RC"); | |
472 | break; | |
473 | case 3: | |
474 | printf(" 16-PTKSA-RC"); | |
475 | break; | |
476 | } | |
477 | switch ((capa & 0x0030) >> 4) { | |
478 | case 0: | |
479 | break; | |
480 | case 1: | |
481 | printf(" 2-GTKSA-RC"); | |
482 | break; | |
483 | case 2: | |
484 | printf(" 4-GTKSA-RC"); | |
485 | break; | |
486 | case 3: | |
487 | printf(" 16-GTKSA-RC"); | |
488 | break; | |
489 | } | |
490 | if (capa & 0x0040) | |
491 | printf(" MFP-required"); | |
492 | if (capa & 0x0080) | |
493 | printf(" MFP-capable"); | |
494 | if (capa & 0x0200) | |
495 | printf(" Peerkey-enabled"); | |
496 | if (capa & 0x0400) | |
497 | printf(" SPP-AMSDU-capable"); | |
498 | if (capa & 0x0800) | |
499 | printf(" SPP-AMSDU-required"); | |
500 | printf(" (0x%.4x)\n", capa); | |
6a4f24e8 JB |
501 | data += 2; |
502 | len -= 2; | |
503 | } | |
31d477fb | 504 | |
5ba3f523 JB |
505 | if (len >= 2) { |
506 | int pmkid_count = data[0] | (data[1] << 8); | |
507 | ||
508 | if (len >= 2 + 16 * pmkid_count) { | |
509 | tab_on_first(&first); | |
510 | printf("\t * %d PMKIDs\n", pmkid_count); | |
511 | /* not printing PMKID values */ | |
512 | data += 2 + 16 * pmkid_count; | |
513 | len -= 2 + 16 * pmkid_count; | |
514 | } else | |
515 | goto invalid; | |
516 | } | |
517 | ||
518 | if (len >= 4) { | |
519 | tab_on_first(&first); | |
520 | printf("\t * Group mgmt cipher suite: "); | |
521 | print_cipher(data); | |
522 | printf("\n"); | |
523 | data += 4; | |
524 | len -= 4; | |
525 | } | |
526 | ||
cadbe89a | 527 | invalid: |
31d477fb MH |
528 | if (len != 0) { |
529 | printf("\t\t * bogus tail data (%d):", len); | |
530 | while (len) { | |
531 | printf(" %.2x", *data); | |
532 | data++; | |
533 | len--; | |
534 | } | |
535 | printf("\n"); | |
536 | } | |
857d966e MH |
537 | } |
538 | ||
83b4934c | 539 | static void print_rsn(const uint8_t type, uint8_t len, const uint8_t *data) |
857d966e | 540 | { |
83b4934c | 541 | print_rsn_ie("CCMP", "IEEE 802.1X", len, data); |
857d966e MH |
542 | } |
543 | ||
0c445c24 LR |
544 | static void print_ht_capa(const uint8_t type, uint8_t len, const uint8_t *data) |
545 | { | |
357c1a5d | 546 | printf("\n"); |
7ddfb679 JB |
547 | print_ht_capability(data[0] | (data[1] << 8)); |
548 | print_ampdu_length(data[2] & 3); | |
c79c7464 | 549 | print_ampdu_spacing((data[2] >> 2) & 7); |
7ddfb679 | 550 | print_ht_mcs(data + 3); |
0c445c24 LR |
551 | } |
552 | ||
29f7579e JB |
553 | static const char *ht_secondary_offset[4] = { |
554 | "no secondary", | |
555 | "above", | |
556 | "[reserved!]", | |
557 | "below", | |
558 | }; | |
559 | ||
be7602fb JB |
560 | static void print_ht_op(const uint8_t type, uint8_t len, const uint8_t *data) |
561 | { | |
be7602fb JB |
562 | static const char *protection[4] = { |
563 | "no", | |
564 | "nonmember", | |
565 | "20 MHz", | |
566 | "non-HT mixed", | |
567 | }; | |
568 | static const char *sta_chan_width[2] = { | |
569 | "20 MHz", | |
570 | "any", | |
571 | }; | |
572 | ||
573 | printf("\n"); | |
574 | printf("\t\t * primary channel: %d\n", data[0]); | |
575 | printf("\t\t * secondary channel offset: %s\n", | |
29f7579e | 576 | ht_secondary_offset[data[1] & 0x3]); |
be7602fb JB |
577 | printf("\t\t * STA channel width: %s\n", sta_chan_width[(data[1] & 0x4)>>2]); |
578 | printf("\t\t * RIFS: %d\n", (data[1] & 0x8)>>3); | |
579 | printf("\t\t * HT protection: %s\n", protection[data[2] & 0x3]); | |
580 | printf("\t\t * non-GF present: %d\n", (data[2] & 0x4) >> 2); | |
581 | printf("\t\t * OBSS non-GF present: %d\n", (data[2] & 0x10) >> 4); | |
582 | printf("\t\t * dual beacon: %d\n", (data[4] & 0x40) >> 6); | |
583 | printf("\t\t * dual CTS protection: %d\n", (data[4] & 0x80) >> 7); | |
584 | printf("\t\t * STBC beacon: %d\n", data[5] & 0x1); | |
585 | printf("\t\t * L-SIG TXOP Prot: %d\n", (data[5] & 0x2) >> 1); | |
586 | printf("\t\t * PCO active: %d\n", (data[5] & 0x4) >> 2); | |
587 | printf("\t\t * PCO phase: %d\n", (data[5] & 0x8) >> 3); | |
588 | } | |
589 | ||
83b4934c | 590 | static void print_capabilities(const uint8_t type, uint8_t len, const uint8_t *data) |
9b880b00 | 591 | { |
31d2d259 JB |
592 | int i, base, bit; |
593 | bool first = true; | |
594 | ||
595 | ||
596 | for (i = 0; i < len; i++) { | |
597 | base = i * 8; | |
598 | ||
599 | for (bit = 0; bit < 8; bit++) { | |
600 | if (!(data[i] & (1 << bit))) | |
601 | continue; | |
602 | ||
603 | if (!first) | |
604 | printf(","); | |
605 | else | |
606 | first = false; | |
607 | ||
70c649d2 JB |
608 | #define CAPA(bit, name) case bit: printf(" " name); break |
609 | ||
31d2d259 | 610 | switch (bit + base) { |
70c649d2 JB |
611 | CAPA(0, "HT Information Exchange Supported"); |
612 | CAPA(1, "reserved (On-demand Beacon)"); | |
613 | CAPA(2, "Extended Channel Switching"); | |
614 | CAPA(3, "reserved (Wave Indication)"); | |
615 | CAPA(4, "PSMP Capability"); | |
616 | CAPA(5, "reserved (Service Interval Granularity)"); | |
617 | CAPA(6, "S-PSMP Capability"); | |
618 | CAPA(7, "Event"); | |
619 | CAPA(8, "Diagnostics"); | |
620 | CAPA(9, "Multicast Diagnostics"); | |
621 | CAPA(10, "Location Tracking"); | |
622 | CAPA(11, "FMS"); | |
623 | CAPA(12, "Proxy ARP Service"); | |
624 | CAPA(13, "Collocated Interference Reporting"); | |
625 | CAPA(14, "Civic Location"); | |
626 | CAPA(15, "Geospatial Location"); | |
627 | CAPA(16, "TFS"); | |
628 | CAPA(17, "WNM-Sleep Mode"); | |
629 | CAPA(18, "TIM Broadcast"); | |
630 | CAPA(19, "BSS Transition"); | |
631 | CAPA(20, "QoS Traffic Capability"); | |
632 | CAPA(21, "AC Station Count"); | |
633 | CAPA(22, "Multiple BSSID"); | |
634 | CAPA(23, "Timing Measurement"); | |
635 | CAPA(24, "Channel Usage"); | |
636 | CAPA(25, "SSID List"); | |
637 | CAPA(26, "DMS"); | |
638 | CAPA(27, "UTC TSF Offset"); | |
639 | CAPA(28, "TDLS Peer U-APSD Buffer STA Support"); | |
640 | CAPA(29, "TDLS Peer PSM Support"); | |
641 | CAPA(30, "TDLS channel switching"); | |
642 | CAPA(31, "Interworking"); | |
643 | CAPA(32, "QoS Map"); | |
644 | CAPA(33, "EBR"); | |
645 | CAPA(34, "SSPN Interface"); | |
646 | CAPA(35, "Reserved"); | |
647 | CAPA(36, "MSGCF Capability"); | |
648 | CAPA(37, "TDLS Support"); | |
649 | CAPA(38, "TDLS Prohibited"); | |
650 | CAPA(39, "TDLS Channel Switching Prohibited"); | |
651 | CAPA(40, "Reject Unadmitted Frame"); | |
652 | CAPA(44, "Identifier Location"); | |
653 | CAPA(45, "U-APSD Coexistence"); | |
654 | CAPA(46, "WNM-Notification"); | |
655 | CAPA(47, "Reserved"); | |
656 | CAPA(48, "UTF-8 SSID"); | |
31d2d259 JB |
657 | default: |
658 | printf(" %d", bit); | |
659 | break; | |
660 | } | |
70c649d2 | 661 | #undef CAPA |
31d2d259 JB |
662 | } |
663 | } | |
9b880b00 | 664 | |
9b880b00 MH |
665 | printf("\n"); |
666 | } | |
667 | ||
575280cc JM |
668 | static void print_tim(const uint8_t type, uint8_t len, const uint8_t *data) |
669 | { | |
670 | printf(" DTIM Count %u DTIM Period %u Bitmap Control 0x%x " | |
671 | "Bitmap[0] 0x%x", | |
672 | data[0], data[1], data[2], data[3]); | |
673 | if (len - 4) | |
674 | printf(" (+ %u octet%s)", len - 4, len - 4 == 1 ? "" : "s"); | |
675 | printf("\n"); | |
676 | } | |
677 | ||
54eb1613 JB |
678 | static void print_vht_capa(const uint8_t type, uint8_t len, const uint8_t *data) |
679 | { | |
680 | printf("\n"); | |
681 | print_vht_info(data[0] | (data[1] << 8) | | |
682 | (data[2] << 16) | (data[3] << 24), | |
683 | data + 4); | |
684 | } | |
685 | ||
ca159934 JB |
686 | static void print_vht_oper(const uint8_t type, uint8_t len, const uint8_t *data) |
687 | { | |
688 | const char *chandwidths[] = { | |
689 | [0] = "20 or 40 MHz", | |
690 | [1] = "80 MHz", | |
691 | [3] = "80+80 MHz", | |
692 | [2] = "160 MHz", | |
693 | }; | |
694 | ||
695 | printf("\n"); | |
696 | printf("\t\t * channel width: %d (%s)\n", data[0], | |
697 | data[0] < ARRAY_SIZE(chandwidths) ? chandwidths[data[0]] : "unknown"); | |
698 | printf("\t\t * center freq segment 1: %d\n", data[1]); | |
699 | printf("\t\t * center freq segment 2: %d\n", data[2]); | |
700 | printf("\t\t * VHT basic MCS set: 0x%.2x%.2x\n", data[4], data[3]); | |
701 | } | |
702 | ||
29f7579e JB |
703 | static void print_obss_scan_params(const uint8_t type, uint8_t len, const uint8_t *data) |
704 | { | |
705 | printf("\n"); | |
706 | printf("\t\t * passive dwell: %d TUs\n", (data[1] << 8) | data[0]); | |
707 | printf("\t\t * active dwell: %d TUs\n", (data[3] << 8) | data[2]); | |
708 | printf("\t\t * channel width trigger scan interval: %d s\n", (data[5] << 8) | data[4]); | |
709 | printf("\t\t * scan passive total per channel: %d TUs\n", (data[7] << 8) | data[6]); | |
710 | printf("\t\t * scan active total per channel: %d TUs\n", (data[9] << 8) | data[8]); | |
711 | printf("\t\t * BSS width channel transition delay factor: %d\n", (data[11] << 8) | data[10]); | |
712 | printf("\t\t * OBSS Scan Activity Threshold: %d.%02d %%\n", | |
713 | ((data[13] << 8) | data[12]) / 100, ((data[13] << 8) | data[12]) % 100); | |
714 | } | |
715 | ||
716 | static void print_secchan_offs(const uint8_t type, uint8_t len, const uint8_t *data) | |
717 | { | |
718 | if (data[0] < ARRAY_SIZE(ht_secondary_offset)) | |
719 | printf(" %s (%d)\n", ht_secondary_offset[data[0]], data[0]); | |
720 | else | |
721 | printf(" %d\n", data[0]); | |
722 | } | |
723 | ||
724 | static void print_bss_load(const uint8_t type, uint8_t len, const uint8_t *data) | |
725 | { | |
726 | printf("\n"); | |
727 | printf("\t\t * station count: %d\n", (data[1] << 8) | data[0]); | |
728 | printf("\t\t * channel utilisation: %d/255\n", data[2]); | |
729 | printf("\t\t * available admission capacity: %d [*32us]\n", (data[4] << 8) | data[3]); | |
730 | } | |
731 | ||
83b4934c JB |
732 | struct ie_print { |
733 | const char *name; | |
734 | void (*print)(const uint8_t type, uint8_t len, const uint8_t *data); | |
735 | uint8_t minlen, maxlen; | |
febeb0c0 | 736 | uint8_t flags; |
764fe753 JB |
737 | }; |
738 | ||
83b4934c JB |
739 | static void print_ie(const struct ie_print *p, const uint8_t type, |
740 | uint8_t len, const uint8_t *data) | |
4673a894 | 741 | { |
83b4934c JB |
742 | int i; |
743 | ||
744 | if (!p->print) | |
745 | return; | |
746 | ||
747 | printf("\t%s:", p->name); | |
748 | if (len < p->minlen || len > p->maxlen) { | |
749 | if (len > 1) { | |
750 | printf(" <invalid: %d bytes:", len); | |
751 | for (i = 0; i < len; i++) | |
752 | printf(" %.02x", data[i]); | |
753 | printf(">\n"); | |
754 | } else if (len) | |
755 | printf(" <invalid: 1 byte: %.02x>\n", data[0]); | |
756 | else | |
757 | printf(" <invalid: no data>\n"); | |
758 | return; | |
759 | } | |
760 | ||
761 | p->print(type, len, data); | |
762 | } | |
763 | ||
764 | #define PRINT_IGN { \ | |
765 | .name = "IGNORE", \ | |
766 | .print = NULL, \ | |
767 | .minlen = 0, \ | |
768 | .maxlen = 255, \ | |
4673a894 JB |
769 | } |
770 | ||
83b4934c | 771 | static const struct ie_print ieprinters[] = { |
febeb0c0 JB |
772 | [0] = { "SSID", print_ssid, 0, 32, BIT(PRINT_SCAN) | BIT(PRINT_LINK), }, |
773 | [1] = { "Supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
014d581a | 774 | [3] = { "DS Parameter set", print_ds, 1, 1, BIT(PRINT_SCAN), }, |
575280cc | 775 | [5] = { "TIM", print_tim, 4, 255, BIT(PRINT_SCAN), }, |
febeb0c0 | 776 | [7] = { "Country", print_country, 3, 255, BIT(PRINT_SCAN), }, |
29f7579e | 777 | [11] = { "BSS Load", print_bss_load, 5, 5, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
778 | [32] = { "Power constraint", print_powerconstraint, 1, 1, BIT(PRINT_SCAN), }, |
779 | [42] = { "ERP", print_erp, 1, 255, BIT(PRINT_SCAN), }, | |
a2e61861 | 780 | [45] = { "HT capabilities", print_ht_capa, 26, 26, BIT(PRINT_SCAN), }, |
29f7579e | 781 | [74] = { "Overlapping BSS scan params", print_obss_scan_params, 14, 255, BIT(PRINT_SCAN), }, |
be7602fb | 782 | [61] = { "HT operation", print_ht_op, 22, 22, BIT(PRINT_SCAN), }, |
29f7579e | 783 | [62] = { "Secondary Channel Offset", print_secchan_offs, 1, 1, BIT(PRINT_SCAN), }, |
54eb1613 | 784 | [191] = { "VHT capabilities", print_vht_capa, 12, 255, BIT(PRINT_SCAN), }, |
ca159934 | 785 | [192] = { "VHT operation", print_vht_oper, 5, 255, BIT(PRINT_SCAN), }, |
febeb0c0 JB |
786 | [48] = { "RSN", print_rsn, 2, 255, BIT(PRINT_SCAN), }, |
787 | [50] = { "Extended supported rates", print_supprates, 0, 255, BIT(PRINT_SCAN), }, | |
720583e9 | 788 | [114] = { "MESH ID", print_ssid, 0, 32, BIT(PRINT_SCAN) | BIT(PRINT_LINK), }, |
febeb0c0 | 789 | [127] = { "Extended capabilities", print_capabilities, 0, 255, BIT(PRINT_SCAN), }, |
83b4934c JB |
790 | }; |
791 | ||
792 | static void print_wifi_wpa(const uint8_t type, uint8_t len, const uint8_t *data) | |
793 | { | |
794 | print_rsn_ie("TKIP", "IEEE 802.1X", len, data); | |
795 | } | |
796 | ||
1cab57eb JB |
797 | static bool print_wifi_wmm_param(const uint8_t *data, uint8_t len) |
798 | { | |
799 | int i; | |
800 | static const char *aci_tbl[] = { "BE", "BK", "VI", "VO" }; | |
801 | ||
802 | if (len < 19) | |
803 | goto invalid; | |
804 | ||
805 | if (data[0] != 1) { | |
cee4fe20 | 806 | printf("Parameter: not version 1: "); |
1cab57eb JB |
807 | return false; |
808 | } | |
809 | ||
89ea706f | 810 | printf("\t * Parameter version 1"); |
1cab57eb JB |
811 | |
812 | data++; | |
813 | ||
814 | if (data[0] & 0x80) | |
89ea706f | 815 | printf("\n\t\t * u-APSD"); |
1cab57eb JB |
816 | |
817 | data += 2; | |
818 | ||
819 | for (i = 0; i < 4; i++) { | |
89ea706f | 820 | printf("\n\t\t * %s:", aci_tbl[(data[0] >> 5) & 3]); |
87181516 | 821 | if (data[0] & 0x10) |
1cab57eb JB |
822 | printf(" acm"); |
823 | printf(" CW %d-%d", (1 << (data[1] & 0xf)) - 1, | |
824 | (1 << (data[1] >> 4)) - 1); | |
a2a4c265 | 825 | printf(", AIFSN %d", data[0] & 0xf); |
1cab57eb | 826 | if (data[2] | data[3]) |
cee4fe20 | 827 | printf(", TXOP %d usec", (data[2] + (data[3] << 8)) * 32); |
1cab57eb JB |
828 | data += 4; |
829 | } | |
830 | ||
831 | printf("\n"); | |
832 | return true; | |
833 | ||
834 | invalid: | |
835 | printf("invalid: "); | |
836 | return false; | |
837 | } | |
838 | ||
83b4934c | 839 | static void print_wifi_wmm(const uint8_t type, uint8_t len, const uint8_t *data) |
6ff0c93a MH |
840 | { |
841 | int i; | |
842 | ||
6ff0c93a MH |
843 | switch (data[0]) { |
844 | case 0x00: | |
83b4934c | 845 | printf(" information:"); |
6ff0c93a MH |
846 | break; |
847 | case 0x01: | |
1cab57eb JB |
848 | if (print_wifi_wmm_param(data + 1, len - 1)) |
849 | return; | |
6ff0c93a MH |
850 | break; |
851 | default: | |
83b4934c | 852 | printf(" type %d:", data[0]); |
6ff0c93a MH |
853 | break; |
854 | } | |
855 | ||
1cab57eb JB |
856 | for(i = 1; i < len; i++) |
857 | printf(" %.02x", data[i]); | |
6ff0c93a MH |
858 | printf("\n"); |
859 | } | |
860 | ||
a6816965 JM |
861 | static const char * wifi_wps_dev_passwd_id(uint16_t id) |
862 | { | |
863 | switch (id) { | |
864 | case 0: | |
865 | return "Default (PIN)"; | |
866 | case 1: | |
867 | return "User-specified"; | |
868 | case 2: | |
869 | return "Machine-specified"; | |
870 | case 3: | |
871 | return "Rekey"; | |
872 | case 4: | |
873 | return "PushButton"; | |
874 | case 5: | |
875 | return "Registrar-specified"; | |
876 | default: | |
877 | return "??"; | |
878 | } | |
879 | } | |
880 | ||
83b4934c | 881 | static void print_wifi_wps(const uint8_t type, uint8_t len, const uint8_t *data) |
4673a894 JB |
882 | { |
883 | bool first = true; | |
884 | __u16 subtype, sublen; | |
885 | ||
4673a894 JB |
886 | while (len >= 4) { |
887 | subtype = (data[0] << 8) + data[1]; | |
888 | sublen = (data[2] << 8) + data[3]; | |
889 | if (sublen > len) | |
890 | break; | |
891 | ||
892 | switch (subtype) { | |
893 | case 0x104a: | |
894 | tab_on_first(&first); | |
dffc6750 | 895 | printf("\t * Version: %d.%d\n", data[4] >> 4, data[4] & 0xF); |
4673a894 JB |
896 | break; |
897 | case 0x1011: | |
898 | tab_on_first(&first); | |
899 | printf("\t * Device name: %.*s\n", sublen, data + 4); | |
900 | break; | |
a6816965 JM |
901 | case 0x1012: { |
902 | uint16_t id; | |
903 | tab_on_first(&first); | |
904 | if (sublen != 2) { | |
905 | printf("\t * Device Password ID: (invalid " | |
906 | "length %d)\n", sublen); | |
907 | break; | |
908 | } | |
909 | id = data[4] << 8 | data[5]; | |
910 | printf("\t * Device Password ID: %u (%s)\n", | |
911 | id, wifi_wps_dev_passwd_id(id)); | |
912 | break; | |
913 | } | |
4673a894 JB |
914 | case 0x1021: |
915 | tab_on_first(&first); | |
916 | printf("\t * Manufacturer: %.*s\n", sublen, data + 4); | |
917 | break; | |
918 | case 0x1023: | |
919 | tab_on_first(&first); | |
920 | printf("\t * Model: %.*s\n", sublen, data + 4); | |
921 | break; | |
a6816965 JM |
922 | case 0x1024: |
923 | tab_on_first(&first); | |
924 | printf("\t * Model Number: %.*s\n", sublen, data + 4); | |
925 | break; | |
926 | case 0x103b: { | |
927 | __u8 val = data[4]; | |
928 | tab_on_first(&first); | |
929 | printf("\t * Response Type: %d%s\n", | |
930 | val, val == 3 ? " (AP)" : ""); | |
931 | break; | |
932 | } | |
933 | case 0x103c: { | |
934 | __u8 val = data[4]; | |
935 | tab_on_first(&first); | |
936 | printf("\t * RF Bands: 0x%x\n", val); | |
937 | break; | |
938 | } | |
939 | case 0x1041: { | |
940 | __u8 val = data[4]; | |
941 | tab_on_first(&first); | |
942 | printf("\t * Selected Registrar: 0x%x\n", val); | |
943 | break; | |
944 | } | |
945 | case 0x1042: | |
946 | tab_on_first(&first); | |
947 | printf("\t * Serial Number: %.*s\n", sublen, data + 4); | |
948 | break; | |
949 | case 0x1044: { | |
950 | __u8 val = data[4]; | |
951 | tab_on_first(&first); | |
952 | printf("\t * Wi-Fi Protected Setup State: %d%s%s\n", | |
953 | val, | |
954 | val == 1 ? " (Unconfigured)" : "", | |
955 | val == 2 ? " (Configured)" : ""); | |
956 | break; | |
957 | } | |
09fe09dc JB |
958 | case 0x1047: |
959 | tab_on_first(&first); | |
960 | printf("\t * UUID: "); | |
961 | if (sublen != 16) { | |
962 | printf("(invalid, length=%d)\n", sublen); | |
963 | break; | |
964 | } | |
965 | printf("%02x%02x%02x%02x-%02x%02x-%02x%02x-" | |
966 | "%02x%02x-%02x%02x%02x%02x%02x%02x\n", | |
967 | data[4], data[5], data[6], data[7], | |
968 | data[8], data[9], data[10], data[11], | |
969 | data[12], data[13], data[14], data[15], | |
970 | data[16], data[17], data[18], data[19]); | |
971 | break; | |
a6816965 JM |
972 | case 0x1054: { |
973 | tab_on_first(&first); | |
974 | if (sublen != 8) { | |
975 | printf("\t * Primary Device Type: (invalid " | |
976 | "length %d)\n", sublen); | |
977 | break; | |
978 | } | |
979 | printf("\t * Primary Device Type: " | |
980 | "%u-%02x%02x%02x%02x-%u\n", | |
981 | data[4] << 8 | data[5], | |
982 | data[6], data[7], data[8], data[9], | |
983 | data[10] << 8 | data[11]); | |
984 | break; | |
985 | } | |
7ee5a865 | 986 | case 0x1057: { |
fe31a22e | 987 | __u8 val = data[4]; |
7ee5a865 | 988 | tab_on_first(&first); |
fe31a22e | 989 | printf("\t * AP setup locked: 0x%.2x\n", val); |
7ee5a865 JB |
990 | break; |
991 | } | |
a6816965 JM |
992 | case 0x1008: |
993 | case 0x1053: { | |
4673a894 JB |
994 | __u16 meth = (data[4] << 8) + data[5]; |
995 | bool comma = false; | |
996 | tab_on_first(&first); | |
a6816965 JM |
997 | printf("\t * %sConfig methods:", |
998 | subtype == 0x1053 ? "Selected Registrar ": ""); | |
4673a894 JB |
999 | #define T(bit, name) do { \ |
1000 | if (meth & (1<<bit)) { \ | |
1001 | if (comma) \ | |
1002 | printf(","); \ | |
1003 | comma = true; \ | |
1004 | printf(" " name); \ | |
1005 | } } while (0) | |
1006 | T(0, "USB"); | |
1007 | T(1, "Ethernet"); | |
1008 | T(2, "Label"); | |
1009 | T(3, "Display"); | |
1010 | T(4, "Ext. NFC"); | |
1011 | T(5, "Int. NFC"); | |
1012 | T(6, "NFC Intf."); | |
1013 | T(7, "PBC"); | |
1014 | T(8, "Keypad"); | |
1015 | printf("\n"); | |
1016 | break; | |
1017 | #undef T | |
1018 | } | |
2650d46b JB |
1019 | default: { |
1020 | const __u8 *subdata = data + 4; | |
1021 | __u16 tmplen = sublen; | |
1022 | ||
1023 | tab_on_first(&first); | |
1024 | printf("\t * Unknown TLV (%#.4x, %d bytes):", | |
1025 | subtype, tmplen); | |
1026 | while (tmplen) { | |
1027 | printf(" %.2x", *subdata); | |
1028 | subdata++; | |
1029 | tmplen--; | |
1030 | } | |
1031 | printf("\n"); | |
4673a894 JB |
1032 | break; |
1033 | } | |
2650d46b | 1034 | } |
4673a894 JB |
1035 | |
1036 | data += sublen + 4; | |
1037 | len -= sublen + 4; | |
1038 | } | |
1039 | ||
1040 | if (len != 0) { | |
1041 | printf("\t\t * bogus tail data (%d):", len); | |
1042 | while (len) { | |
1043 | printf(" %.2x", *data); | |
1044 | data++; | |
1045 | len--; | |
1046 | } | |
1047 | printf("\n"); | |
1048 | } | |
1049 | } | |
1050 | ||
83b4934c | 1051 | static const struct ie_print wifiprinters[] = { |
febeb0c0 JB |
1052 | [1] = { "WPA", print_wifi_wpa, 2, 255, BIT(PRINT_SCAN), }, |
1053 | [2] = { "WMM", print_wifi_wmm, 1, 255, BIT(PRINT_SCAN), }, | |
1054 | [4] = { "WPS", print_wifi_wps, 0, 255, BIT(PRINT_SCAN), }, | |
4673a894 JB |
1055 | }; |
1056 | ||
9a22374a JB |
1057 | static inline void print_p2p(const uint8_t type, uint8_t len, const uint8_t *data) |
1058 | { | |
1059 | bool first = true; | |
1060 | __u8 subtype; | |
1061 | __u16 sublen; | |
1062 | ||
1063 | while (len >= 3) { | |
1064 | subtype = data[0]; | |
1065 | sublen = (data[2] << 8) + data[1]; | |
1066 | ||
1067 | if (sublen > len - 3) | |
1068 | break; | |
1069 | ||
1070 | switch (subtype) { | |
1071 | case 0x02: /* capability */ | |
1072 | tab_on_first(&first); | |
1073 | if (sublen < 2) { | |
1074 | printf("\t * malformed capability\n"); | |
1075 | break; | |
1076 | } | |
1077 | printf("\t * Group capa: 0x%.2x, Device capa: 0x%.2x\n", | |
1078 | data[3], data[4]); | |
1079 | break; | |
1080 | case 0x0d: /* device info */ | |
1081 | if (sublen < 6 + 2 + 8 + 1) { | |
1082 | printf("\t * malformed device info\n"); | |
1083 | break; | |
1084 | } | |
1085 | /* fall through for now */ | |
1086 | case 0x00: /* status */ | |
1087 | case 0x01: /* minor reason */ | |
1088 | case 0x03: /* device ID */ | |
1089 | case 0x04: /* GO intent */ | |
1090 | case 0x05: /* configuration timeout */ | |
1091 | case 0x06: /* listen channel */ | |
1092 | case 0x07: /* group BSSID */ | |
1093 | case 0x08: /* ext listen timing */ | |
1094 | case 0x09: /* intended interface address */ | |
1095 | case 0x0a: /* manageability */ | |
1096 | case 0x0b: /* channel list */ | |
1097 | case 0x0c: /* NoA */ | |
1098 | case 0x0e: /* group info */ | |
1099 | case 0x0f: /* group ID */ | |
1100 | case 0x10: /* interface */ | |
1101 | case 0x11: /* operating channel */ | |
1102 | case 0x12: /* invitation flags */ | |
1103 | case 0xdd: /* vendor specific */ | |
1104 | default: { | |
1105 | const __u8 *subdata = data + 4; | |
1106 | __u16 tmplen = sublen; | |
1107 | ||
1108 | tab_on_first(&first); | |
1109 | printf("\t * Unknown TLV (%#.2x, %d bytes):", | |
1110 | subtype, tmplen); | |
1111 | while (tmplen) { | |
1112 | printf(" %.2x", *subdata); | |
1113 | subdata++; | |
1114 | tmplen--; | |
1115 | } | |
1116 | printf("\n"); | |
1117 | break; | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | data += sublen + 3; | |
1122 | len -= sublen + 3; | |
1123 | } | |
1124 | ||
1125 | if (len != 0) { | |
1126 | tab_on_first(&first); | |
1127 | printf("\t * bogus tail data (%d):", len); | |
1128 | while (len) { | |
1129 | printf(" %.2x", *data); | |
1130 | data++; | |
1131 | len--; | |
1132 | } | |
1133 | printf("\n"); | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | static const struct ie_print wfa_printers[] = { | |
1138 | [9] = { "P2P", print_p2p, 2, 255, BIT(PRINT_SCAN), }, | |
1139 | }; | |
1140 | ||
764fe753 | 1141 | static void print_vendor(unsigned char len, unsigned char *data, |
febeb0c0 | 1142 | bool unknown, enum print_ie_type ptype) |
3563f4c5 JB |
1143 | { |
1144 | int i; | |
1145 | ||
fbf80af5 | 1146 | if (len < 3) { |
4673a894 | 1147 | printf("\tVendor specific: <too short> data:"); |
fbf80af5 JB |
1148 | for(i = 0; i < len; i++) |
1149 | printf(" %.02x", data[i]); | |
1150 | printf("\n"); | |
1151 | return; | |
1152 | } | |
1153 | ||
3bd60ef1 | 1154 | if (len >= 4 && memcmp(data, ms_oui, 3) == 0) { |
febeb0c0 JB |
1155 | if (data[3] < ARRAY_SIZE(wifiprinters) && |
1156 | wifiprinters[data[3]].name && | |
1157 | wifiprinters[data[3]].flags & BIT(ptype)) { | |
83b4934c JB |
1158 | print_ie(&wifiprinters[data[3]], data[3], len - 4, data + 4); |
1159 | return; | |
1160 | } | |
febeb0c0 | 1161 | if (!unknown) |
4673a894 | 1162 | return; |
3bd60ef1 | 1163 | printf("\tMS/WiFi %#.2x, data:", data[3]); |
4673a894 JB |
1164 | for(i = 0; i < len - 4; i++) |
1165 | printf(" %.02x", data[i + 4]); | |
1166 | printf("\n"); | |
1167 | return; | |
1168 | } | |
1169 | ||
9a22374a JB |
1170 | if (len >= 4 && memcmp(data, wfa_oui, 3) == 0) { |
1171 | if (data[3] < ARRAY_SIZE(wfa_printers) && | |
1172 | wfa_printers[data[3]].name && | |
1173 | wfa_printers[data[3]].flags & BIT(ptype)) { | |
1174 | print_ie(&wfa_printers[data[3]], data[3], len - 4, data + 4); | |
1175 | return; | |
1176 | } | |
1177 | if (!unknown) | |
1178 | return; | |
1179 | printf("\tWFA %#.2x, data:", data[3]); | |
1180 | for(i = 0; i < len - 4; i++) | |
1181 | printf(" %.02x", data[i + 4]); | |
1182 | printf("\n"); | |
1183 | return; | |
1184 | } | |
1185 | ||
febeb0c0 | 1186 | if (!unknown) |
764fe753 JB |
1187 | return; |
1188 | ||
fbf80af5 | 1189 | printf("\tVendor specific: OUI %.2x:%.2x:%.2x, data:", |
3563f4c5 | 1190 | data[0], data[1], data[2]); |
fbf80af5 JB |
1191 | for (i = 3; i < len; i++) |
1192 | printf(" %.2x", data[i]); | |
3563f4c5 JB |
1193 | printf("\n"); |
1194 | } | |
1195 | ||
febeb0c0 JB |
1196 | void print_ies(unsigned char *ie, int ielen, bool unknown, |
1197 | enum print_ie_type ptype) | |
3563f4c5 JB |
1198 | { |
1199 | while (ielen >= 2 && ielen >= ie[1]) { | |
febeb0c0 JB |
1200 | if (ie[0] < ARRAY_SIZE(ieprinters) && |
1201 | ieprinters[ie[0]].name && | |
1202 | ieprinters[ie[0]].flags & BIT(ptype)) { | |
83b4934c | 1203 | print_ie(&ieprinters[ie[0]], ie[0], ie[1], ie + 2); |
764fe753 | 1204 | } else if (ie[0] == 221 /* vendor */) { |
febeb0c0 JB |
1205 | print_vendor(ie[1], ie + 2, unknown, ptype); |
1206 | } else if (unknown) { | |
3563f4c5 JB |
1207 | int i; |
1208 | ||
8086b700 | 1209 | printf("\tUnknown IE (%d):", ie[0]); |
3563f4c5 | 1210 | for (i=0; i<ie[1]; i++) |
8086b700 | 1211 | printf(" %.2x", ie[2+i]); |
3563f4c5 JB |
1212 | printf("\n"); |
1213 | } | |
1214 | ielen -= ie[1] + 2; | |
1215 | ie += ie[1] + 2; | |
1216 | } | |
1217 | } | |
1218 | ||
1219 | static int print_bss_handler(struct nl_msg *msg, void *arg) | |
1220 | { | |
1221 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
1222 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
1223 | struct nlattr *bss[NL80211_BSS_MAX + 1]; | |
1224 | char mac_addr[20], dev[20]; | |
1225 | static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { | |
1226 | [NL80211_BSS_TSF] = { .type = NLA_U64 }, | |
1227 | [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, | |
1228 | [NL80211_BSS_BSSID] = { }, | |
1229 | [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, | |
1230 | [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, | |
1231 | [NL80211_BSS_INFORMATION_ELEMENTS] = { }, | |
f2e17e1f JB |
1232 | [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, |
1233 | [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, | |
a56117a6 | 1234 | [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
c04a78df | 1235 | [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
575280cc | 1236 | [NL80211_BSS_BEACON_IES] = { }, |
3563f4c5 | 1237 | }; |
febeb0c0 | 1238 | struct scan_params *params = arg; |
1c5bcd9c | 1239 | int show = params->show_both_ie_sets ? 2 : 1; |
3563f4c5 JB |
1240 | |
1241 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
1242 | genlmsg_attrlen(gnlh, 0), NULL); | |
1243 | ||
1244 | if (!tb[NL80211_ATTR_BSS]) { | |
5fe70c0e | 1245 | fprintf(stderr, "bss info missing!\n"); |
3563f4c5 JB |
1246 | return NL_SKIP; |
1247 | } | |
1248 | if (nla_parse_nested(bss, NL80211_BSS_MAX, | |
1249 | tb[NL80211_ATTR_BSS], | |
1250 | bss_policy)) { | |
5fe70c0e | 1251 | fprintf(stderr, "failed to parse nested attributes!\n"); |
3563f4c5 JB |
1252 | return NL_SKIP; |
1253 | } | |
1254 | ||
1255 | if (!bss[NL80211_BSS_BSSID]) | |
1256 | return NL_SKIP; | |
1257 | ||
1258 | mac_addr_n2a(mac_addr, nla_data(bss[NL80211_BSS_BSSID])); | |
1259 | if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), dev); | |
a56117a6 JB |
1260 | printf("BSS %s (on %s)", mac_addr, dev); |
1261 | ||
1262 | if (bss[NL80211_BSS_STATUS]) { | |
1263 | switch (nla_get_u32(bss[NL80211_BSS_STATUS])) { | |
1264 | case NL80211_BSS_STATUS_AUTHENTICATED: | |
1265 | printf(" -- authenticated"); | |
1266 | break; | |
1267 | case NL80211_BSS_STATUS_ASSOCIATED: | |
1268 | printf(" -- associated"); | |
1269 | break; | |
1270 | case NL80211_BSS_STATUS_IBSS_JOINED: | |
1271 | printf(" -- joined"); | |
1272 | break; | |
1273 | default: | |
1274 | printf(" -- unknown status: %d", | |
1275 | nla_get_u32(bss[NL80211_BSS_STATUS])); | |
1276 | break; | |
1277 | } | |
1278 | } | |
1279 | printf("\n"); | |
3563f4c5 | 1280 | |
e7109a8a JB |
1281 | if (bss[NL80211_BSS_TSF]) { |
1282 | unsigned long long tsf; | |
1283 | tsf = (unsigned long long)nla_get_u64(bss[NL80211_BSS_TSF]); | |
1284 | printf("\tTSF: %llu usec (%llud, %.2lld:%.2llu:%.2llu)\n", | |
1285 | tsf, tsf/1000/1000/60/60/24, (tsf/1000/1000/60/60) % 24, | |
1286 | (tsf/1000/1000/60) % 60, (tsf/1000/1000) % 60); | |
1287 | } | |
3563f4c5 JB |
1288 | if (bss[NL80211_BSS_FREQUENCY]) |
1289 | printf("\tfreq: %d\n", | |
1290 | nla_get_u32(bss[NL80211_BSS_FREQUENCY])); | |
1291 | if (bss[NL80211_BSS_BEACON_INTERVAL]) | |
1292 | printf("\tbeacon interval: %d\n", | |
1293 | nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL])); | |
92a04ecd MH |
1294 | if (bss[NL80211_BSS_CAPABILITY]) { |
1295 | __u16 capa = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); | |
1296 | printf("\tcapability:"); | |
1297 | if (capa & WLAN_CAPABILITY_ESS) | |
1298 | printf(" ESS"); | |
1299 | if (capa & WLAN_CAPABILITY_IBSS) | |
1300 | printf(" IBSS"); | |
1301 | if (capa & WLAN_CAPABILITY_PRIVACY) | |
1302 | printf(" Privacy"); | |
1303 | if (capa & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1304 | printf(" ShortPreamble"); | |
1305 | if (capa & WLAN_CAPABILITY_PBCC) | |
1306 | printf(" PBCC"); | |
1307 | if (capa & WLAN_CAPABILITY_CHANNEL_AGILITY) | |
1308 | printf(" ChannelAgility"); | |
1309 | if (capa & WLAN_CAPABILITY_SPECTRUM_MGMT) | |
1310 | printf(" SpectrumMgmt"); | |
1311 | if (capa & WLAN_CAPABILITY_QOS) | |
1312 | printf(" QoS"); | |
1313 | if (capa & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
1314 | printf(" ShortSlotTime"); | |
1315 | if (capa & WLAN_CAPABILITY_APSD) | |
1316 | printf(" APSD"); | |
1317 | if (capa & WLAN_CAPABILITY_DSSS_OFDM) | |
1318 | printf(" DSSS-OFDM"); | |
1319 | printf(" (0x%.4x)\n", capa); | |
1320 | } | |
f2e17e1f JB |
1321 | if (bss[NL80211_BSS_SIGNAL_MBM]) { |
1322 | int s = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); | |
1323 | printf("\tsignal: %d.%.2d dBm\n", s/100, s%100); | |
1324 | } | |
1325 | if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { | |
1326 | unsigned char s = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); | |
1327 | printf("\tsignal: %d/100\n", s); | |
1328 | } | |
c04a78df HS |
1329 | if (bss[NL80211_BSS_SEEN_MS_AGO]) { |
1330 | int age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); | |
1331 | printf("\tlast seen: %d ms ago\n", age); | |
1332 | } | |
c551449a | 1333 | |
1c5bcd9c | 1334 | if (bss[NL80211_BSS_INFORMATION_ELEMENTS] && show--) { |
575280cc JM |
1335 | if (bss[NL80211_BSS_BEACON_IES]) |
1336 | printf("\tInformation elements from Probe Response " | |
1337 | "frame:\n"); | |
3563f4c5 | 1338 | print_ies(nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
764fe753 | 1339 | nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]), |
febeb0c0 | 1340 | params->unknown, params->type); |
575280cc | 1341 | } |
1c5bcd9c | 1342 | if (bss[NL80211_BSS_BEACON_IES] && show--) { |
575280cc JM |
1343 | printf("\tInformation elements from Beacon frame:\n"); |
1344 | print_ies(nla_data(bss[NL80211_BSS_BEACON_IES]), | |
1345 | nla_len(bss[NL80211_BSS_BEACON_IES]), | |
1346 | params->unknown, params->type); | |
1347 | } | |
3563f4c5 JB |
1348 | |
1349 | return NL_SKIP; | |
1350 | } | |
1351 | ||
764fe753 | 1352 | static struct scan_params scan_params; |
3563f4c5 | 1353 | |
7c37a24d JB |
1354 | static int handle_scan_dump(struct nl80211_state *state, |
1355 | struct nl_cb *cb, | |
3563f4c5 | 1356 | struct nl_msg *msg, |
05514f95 JB |
1357 | int argc, char **argv, |
1358 | enum id_input id) | |
3563f4c5 | 1359 | { |
764fe753 JB |
1360 | if (argc > 1) |
1361 | return 1; | |
1362 | ||
1c5bcd9c JB |
1363 | memset(&scan_params, 0, sizeof(scan_params)); |
1364 | ||
764fe753 JB |
1365 | if (argc == 1 && !strcmp(argv[0], "-u")) |
1366 | scan_params.unknown = true; | |
575280cc JM |
1367 | else if (argc == 1 && !strcmp(argv[0], "-b")) |
1368 | scan_params.show_both_ie_sets = true; | |
764fe753 | 1369 | |
febeb0c0 JB |
1370 | scan_params.type = PRINT_SCAN; |
1371 | ||
764fe753 JB |
1372 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_bss_handler, |
1373 | &scan_params); | |
3563f4c5 JB |
1374 | return 0; |
1375 | } | |
a5fe4ef2 JB |
1376 | |
1377 | static int handle_scan_combined(struct nl80211_state *state, | |
1378 | struct nl_cb *cb, | |
1379 | struct nl_msg *msg, | |
05514f95 JB |
1380 | int argc, char **argv, |
1381 | enum id_input id) | |
a5fe4ef2 | 1382 | { |
559a1713 | 1383 | char **trig_argv; |
a5fe4ef2 JB |
1384 | static char *dump_argv[] = { |
1385 | NULL, | |
1386 | "scan", | |
1387 | "dump", | |
92649eab | 1388 | NULL, |
a5fe4ef2 JB |
1389 | }; |
1390 | static const __u32 cmds[] = { | |
1391 | NL80211_CMD_NEW_SCAN_RESULTS, | |
1392 | NL80211_CMD_SCAN_ABORTED, | |
1393 | }; | |
559a1713 | 1394 | int trig_argc, dump_argc, err; |
a5fe4ef2 | 1395 | |
559a1713 JB |
1396 | if (argc >= 3 && !strcmp(argv[2], "-u")) { |
1397 | dump_argc = 4; | |
1398 | dump_argv[3] = "-u"; | |
575280cc JM |
1399 | } else if (argc >= 3 && !strcmp(argv[2], "-b")) { |
1400 | dump_argc = 4; | |
1401 | dump_argv[3] = "-b"; | |
559a1713 JB |
1402 | } else |
1403 | dump_argc = 3; | |
1404 | ||
1405 | trig_argc = 3 + (argc - 2) + (3 - dump_argc); | |
1406 | trig_argv = calloc(trig_argc, sizeof(*trig_argv)); | |
1407 | if (!trig_argv) | |
1408 | return -ENOMEM; | |
a5fe4ef2 | 1409 | trig_argv[0] = argv[0]; |
559a1713 JB |
1410 | trig_argv[1] = "scan"; |
1411 | trig_argv[2] = "trigger"; | |
1412 | int i; | |
1413 | for (i = 0; i < argc - 2 - (dump_argc - 3); i++) | |
1414 | trig_argv[i + 3] = argv[i + 2 + (dump_argc - 3)]; | |
75f4204c | 1415 | err = handle_cmd(state, id, trig_argc, trig_argv); |
559a1713 | 1416 | free(trig_argv); |
a5fe4ef2 JB |
1417 | if (err) |
1418 | return err; | |
1419 | ||
61725dbe JB |
1420 | /* |
1421 | * WARNING: DO NOT COPY THIS CODE INTO YOUR APPLICATION | |
1422 | * | |
1423 | * This code has a bug, which requires creating a separate | |
1424 | * nl80211 socket to fix: | |
1425 | * It is possible for a NL80211_CMD_NEW_SCAN_RESULTS or | |
1426 | * NL80211_CMD_SCAN_ABORTED message to be sent by the kernel | |
1427 | * before (!) we listen to it, because we only start listening | |
1428 | * after we send our scan request. | |
1429 | * | |
1430 | * Doing it the other way around has a race condition as well, | |
1431 | * if you first open the events socket you may get a notification | |
1432 | * for a previous scan. | |
1433 | * | |
1434 | * The only proper way to fix this would be to listen to events | |
1435 | * before sending the command, and for the kernel to send the | |
1436 | * scan request along with the event, so that you can match up | |
1437 | * whether the scan you requested was finished or aborted (this | |
1438 | * may result in processing a scan that another application | |
1439 | * requested, but that doesn't seem to be a problem). | |
1440 | * | |
1441 | * Alas, the kernel doesn't do that (yet). | |
1442 | */ | |
1443 | ||
a5fe4ef2 JB |
1444 | if (listen_events(state, ARRAY_SIZE(cmds), cmds) == |
1445 | NL80211_CMD_SCAN_ABORTED) { | |
1446 | printf("scan aborted!\n"); | |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | dump_argv[0] = argv[0]; | |
75f4204c | 1451 | return handle_cmd(state, id, dump_argc, dump_argv); |
a5fe4ef2 | 1452 | } |
ced94d5f | 1453 | TOPLEVEL(scan, "[-u] [freq <freq>*] [ies <hex as 00:11:..>] [lowpri,flush,ap-force] [ssid <ssid>*|passive]", 0, 0, |
6ca98d28 JB |
1454 | CIB_NETDEV, handle_scan_combined, |
1455 | "Scan on the given frequencies and probe for the given SSIDs\n" | |
1456 | "(or wildcard if not given) unless passive scanning is requested.\n" | |
64797a7f JB |
1457 | "If -u is specified print unknown data in the scan results.\n" |
1458 | "Specified (vendor) IEs must be well-formed."); | |
4698bfc2 JB |
1459 | COMMAND(scan, dump, "[-u]", |
1460 | NL80211_CMD_GET_SCAN, NLM_F_DUMP, CIB_NETDEV, handle_scan_dump, | |
1461 | "Dump the current scan results. If -u is specified, print unknown\n" | |
1462 | "data in scan results."); | |
ced94d5f | 1463 | COMMAND(scan, trigger, "[freq <freq>*] [ies <hex as 00:11:..>] [lowpri,flush,ap-force] [ssid <ssid>*|passive]", |
4698bfc2 JB |
1464 | NL80211_CMD_TRIGGER_SCAN, 0, CIB_NETDEV, handle_scan, |
1465 | "Trigger a scan on the given frequencies with probing for the given\n" | |
1466 | "SSIDs (or wildcard if not given) unless passive scanning is requested."); |