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1 | #include <stdbool.h> | |
2 | #include <errno.h> | |
3 | #include <net/if.h> | |
4 | ||
5 | #include <netlink/genl/genl.h> | |
6 | #include <netlink/genl/family.h> | |
7 | #include <netlink/genl/ctrl.h> | |
8 | #include <netlink/msg.h> | |
9 | #include <netlink/attr.h> | |
10 | ||
11 | #include "nl80211.h" | |
12 | #include "iw.h" | |
13 | ||
14 | static void print_flag(const char *name, int *open) | |
15 | { | |
16 | if (!*open) | |
17 | printf(" ("); | |
18 | else | |
19 | printf(", "); | |
20 | printf("%s", name); | |
21 | *open = 1; | |
22 | } | |
23 | ||
24 | static char *cipher_name(__u32 c) | |
25 | { | |
26 | static char buf[20]; | |
27 | ||
28 | switch (c) { | |
29 | case 0x000fac01: | |
30 | return "WEP40 (00-0f-ac:1)"; | |
31 | case 0x000fac05: | |
32 | return "WEP104 (00-0f-ac:5)"; | |
33 | case 0x000fac02: | |
34 | return "TKIP (00-0f-ac:2)"; | |
35 | case 0x000fac04: | |
36 | return "CCMP (00-0f-ac:4)"; | |
37 | case 0x000fac06: | |
38 | return "CMAC (00-0f-ac:6)"; | |
39 | case 0x000fac08: | |
40 | return "GCMP (00-0f-ac:8)"; | |
41 | case 0x00147201: | |
42 | return "WPI-SMS4 (00-14-72:1)"; | |
43 | default: | |
44 | sprintf(buf, "%.2x-%.2x-%.2x:%d", | |
45 | c >> 24, (c >> 16) & 0xff, | |
46 | (c >> 8) & 0xff, c & 0xff); | |
47 | ||
48 | return buf; | |
49 | } | |
50 | } | |
51 | ||
52 | static char *dfs_state_name(enum nl80211_dfs_state state) | |
53 | { | |
54 | switch (state) { | |
55 | case NL80211_DFS_USABLE: | |
56 | return "usable"; | |
57 | case NL80211_DFS_AVAILABLE: | |
58 | return "available"; | |
59 | case NL80211_DFS_UNAVAILABLE: | |
60 | return "unavailable"; | |
61 | default: | |
62 | return "unknown"; | |
63 | } | |
64 | } | |
65 | ||
66 | static int ext_feature_isset(const unsigned char *ext_features, int ext_features_len, | |
67 | enum nl80211_ext_feature_index ftidx) | |
68 | { | |
69 | unsigned char ft_byte; | |
70 | ||
71 | if ((int) ftidx / 8 >= ext_features_len) | |
72 | return 0; | |
73 | ||
74 | ft_byte = ext_features[ftidx / 8]; | |
75 | return (ft_byte & BIT(ftidx % 8)) != 0; | |
76 | } | |
77 | ||
78 | static int print_phy_handler(struct nl_msg *msg, void *arg) | |
79 | { | |
80 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
81 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
82 | ||
83 | struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; | |
84 | ||
85 | struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
86 | static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
87 | [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, | |
88 | [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, | |
89 | [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, | |
90 | [__NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, | |
91 | [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, | |
92 | [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, | |
93 | }; | |
94 | ||
95 | struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; | |
96 | static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { | |
97 | [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, | |
98 | [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG }, | |
99 | }; | |
100 | ||
101 | struct nlattr *nl_band; | |
102 | struct nlattr *nl_freq; | |
103 | struct nlattr *nl_rate; | |
104 | struct nlattr *nl_mode; | |
105 | struct nlattr *nl_cmd; | |
106 | struct nlattr *nl_if, *nl_ftype; | |
107 | int rem_band, rem_freq, rem_rate, rem_mode, rem_cmd, rem_ftype, rem_if; | |
108 | int open; | |
109 | /* | |
110 | * static variables only work here, other applications need to use the | |
111 | * callback pointer and store them there so they can be multithreaded | |
112 | * and/or have multiple netlink sockets, etc. | |
113 | */ | |
114 | static int64_t phy_id = -1; | |
115 | static int last_band = -1; | |
116 | static bool band_had_freq = false; | |
117 | bool print_name = true; | |
118 | ||
119 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
120 | genlmsg_attrlen(gnlh, 0), NULL); | |
121 | ||
122 | if (tb_msg[NL80211_ATTR_WIPHY]) { | |
123 | if (nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]) == phy_id) | |
124 | print_name = false; | |
125 | else | |
126 | last_band = -1; | |
127 | phy_id = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]); | |
128 | } | |
129 | if (print_name && tb_msg[NL80211_ATTR_WIPHY_NAME]) | |
130 | printf("Wiphy %s\n", nla_get_string(tb_msg[NL80211_ATTR_WIPHY_NAME])); | |
131 | ||
132 | /* needed for split dump */ | |
133 | if (tb_msg[NL80211_ATTR_WIPHY_BANDS]) { | |
134 | nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) { | |
135 | if (last_band != nl_band->nla_type) { | |
136 | printf("\tBand %d:\n", nl_band->nla_type + 1); | |
137 | band_had_freq = false; | |
138 | } | |
139 | last_band = nl_band->nla_type; | |
140 | ||
141 | nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), | |
142 | nla_len(nl_band), NULL); | |
143 | ||
144 | if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) { | |
145 | __u16 cap = nla_get_u16(tb_band[NL80211_BAND_ATTR_HT_CAPA]); | |
146 | print_ht_capability(cap); | |
147 | } | |
148 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) { | |
149 | __u8 exponent = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]); | |
150 | print_ampdu_length(exponent); | |
151 | } | |
152 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) { | |
153 | __u8 spacing = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]); | |
154 | print_ampdu_spacing(spacing); | |
155 | } | |
156 | if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] && | |
157 | nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]) == 16) | |
158 | print_ht_mcs(nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])); | |
159 | if (tb_band[NL80211_BAND_ATTR_VHT_CAPA] && | |
160 | tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]) | |
161 | print_vht_info(nla_get_u32(tb_band[NL80211_BAND_ATTR_VHT_CAPA]), | |
162 | nla_data(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET])); | |
163 | ||
164 | if (tb_band[NL80211_BAND_ATTR_FREQS]) { | |
165 | if (!band_had_freq) { | |
166 | printf("\t\tFrequencies:\n"); | |
167 | band_had_freq = true; | |
168 | } | |
169 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { | |
170 | uint32_t freq; | |
171 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
172 | nla_len(nl_freq), freq_policy); | |
173 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
174 | continue; | |
175 | freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); | |
176 | printf("\t\t\t* %d MHz [%d]", freq, ieee80211_frequency_to_channel(freq)); | |
177 | ||
178 | if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] && | |
179 | !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
180 | printf(" (%.1f dBm)", 0.01 * nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER])); | |
181 | ||
182 | open = 0; | |
183 | if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) { | |
184 | print_flag("disabled", &open); | |
185 | goto next; | |
186 | } | |
187 | ||
188 | /* If both flags are set assume an new kernel */ | |
189 | if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR] && tb_freq[__NL80211_FREQUENCY_ATTR_NO_IBSS]) { | |
190 | print_flag("no IR", &open); | |
191 | } else if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) { | |
192 | print_flag("passive scan", &open); | |
193 | } else if (tb_freq[__NL80211_FREQUENCY_ATTR_NO_IBSS]){ | |
194 | print_flag("no ibss", &open); | |
195 | } | |
196 | ||
197 | if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) | |
198 | print_flag("radar detection", &open); | |
199 | next: | |
200 | if (open) | |
201 | printf(")"); | |
202 | printf("\n"); | |
203 | ||
204 | if (!tb_freq[NL80211_FREQUENCY_ATTR_DISABLED] && tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { | |
205 | enum nl80211_dfs_state state = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); | |
206 | unsigned long time; | |
207 | ||
208 | printf("\t\t\t DFS state: %s", dfs_state_name(state)); | |
209 | if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_TIME]) { | |
210 | time = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_TIME]); | |
211 | printf(" (for %lu sec)", time/1000); | |
212 | } | |
213 | printf("\n"); | |
214 | if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) | |
215 | printf("\t\t\t DFS CAC time: %u ms\n", | |
216 | nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME])); | |
217 | } | |
218 | ||
219 | } | |
220 | } | |
221 | ||
222 | if (tb_band[NL80211_BAND_ATTR_RATES]) { | |
223 | printf("\t\tBitrates (non-HT):\n"); | |
224 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
225 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
226 | nla_len(nl_rate), rate_policy); | |
227 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
228 | continue; | |
229 | printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE])); | |
230 | open = 0; | |
231 | if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE]) | |
232 | print_flag("short preamble supported", &open); | |
233 | if (open) | |
234 | printf(")"); | |
235 | printf("\n"); | |
236 | } | |
237 | } | |
238 | } | |
239 | } | |
240 | ||
241 | if (tb_msg[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) | |
242 | printf("\tmax # scan SSIDs: %d\n", | |
243 | nla_get_u8(tb_msg[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])); | |
244 | if (tb_msg[NL80211_ATTR_MAX_SCAN_IE_LEN]) | |
245 | printf("\tmax scan IEs length: %d bytes\n", | |
246 | nla_get_u16(tb_msg[NL80211_ATTR_MAX_SCAN_IE_LEN])); | |
247 | if (tb_msg[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) | |
248 | printf("\tmax # sched scan SSIDs: %d\n", | |
249 | nla_get_u8(tb_msg[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])); | |
250 | if (tb_msg[NL80211_ATTR_MAX_MATCH_SETS]) | |
251 | printf("\tmax # match sets: %d\n", | |
252 | nla_get_u8(tb_msg[NL80211_ATTR_MAX_MATCH_SETS])); | |
253 | ||
254 | if (tb_msg[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
255 | unsigned int frag; | |
256 | ||
257 | frag = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
258 | if (frag != (unsigned int)-1) | |
259 | printf("\tFragmentation threshold: %d\n", frag); | |
260 | } | |
261 | ||
262 | if (tb_msg[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
263 | unsigned int rts; | |
264 | ||
265 | rts = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
266 | if (rts != (unsigned int)-1) | |
267 | printf("\tRTS threshold: %d\n", rts); | |
268 | } | |
269 | ||
270 | if (tb_msg[NL80211_ATTR_WIPHY_RETRY_SHORT] || | |
271 | tb_msg[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
272 | unsigned char retry_short = 0, retry_long = 0; | |
273 | ||
274 | if (tb_msg[NL80211_ATTR_WIPHY_RETRY_SHORT]) | |
275 | retry_short = nla_get_u8(tb_msg[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
276 | if (tb_msg[NL80211_ATTR_WIPHY_RETRY_LONG]) | |
277 | retry_long = nla_get_u8(tb_msg[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
278 | if (retry_short == retry_long) { | |
279 | printf("\tRetry short long limit: %d\n", retry_short); | |
280 | } else { | |
281 | printf("\tRetry short limit: %d\n", retry_short); | |
282 | printf("\tRetry long limit: %d\n", retry_long); | |
283 | } | |
284 | } | |
285 | ||
286 | if (tb_msg[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { | |
287 | unsigned char coverage; | |
288 | ||
289 | coverage = nla_get_u8(tb_msg[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
290 | /* See handle_distance() for an explanation where the '450' comes from */ | |
291 | printf("\tCoverage class: %d (up to %dm)\n", coverage, 450 * coverage); | |
292 | } | |
293 | ||
294 | if (tb_msg[NL80211_ATTR_CIPHER_SUITES]) { | |
295 | int num = nla_len(tb_msg[NL80211_ATTR_CIPHER_SUITES]) / sizeof(__u32); | |
296 | int i; | |
297 | __u32 *ciphers = nla_data(tb_msg[NL80211_ATTR_CIPHER_SUITES]); | |
298 | if (num > 0) { | |
299 | printf("\tSupported Ciphers:\n"); | |
300 | for (i = 0; i < num; i++) | |
301 | printf("\t\t* %s\n", | |
302 | cipher_name(ciphers[i])); | |
303 | } | |
304 | } | |
305 | ||
306 | if (tb_msg[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX] && | |
307 | tb_msg[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX]) | |
308 | printf("\tAvailable Antennas: TX %#x RX %#x\n", | |
309 | nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX]), | |
310 | nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX])); | |
311 | ||
312 | if (tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX] && | |
313 | tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]) | |
314 | printf("\tConfigured Antennas: TX %#x RX %#x\n", | |
315 | nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX]), | |
316 | nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX])); | |
317 | ||
318 | if (tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES]) { | |
319 | printf("\tSupported interface modes:\n"); | |
320 | nla_for_each_nested(nl_mode, tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES], rem_mode) | |
321 | printf("\t\t * %s\n", iftype_name(nla_type(nl_mode))); | |
322 | } | |
323 | ||
324 | if (tb_msg[NL80211_ATTR_SOFTWARE_IFTYPES]) { | |
325 | printf("\tsoftware interface modes (can always be added):\n"); | |
326 | nla_for_each_nested(nl_mode, tb_msg[NL80211_ATTR_SOFTWARE_IFTYPES], rem_mode) | |
327 | printf("\t\t * %s\n", iftype_name(nla_type(nl_mode))); | |
328 | } | |
329 | ||
330 | if (tb_msg[NL80211_ATTR_INTERFACE_COMBINATIONS]) { | |
331 | struct nlattr *nl_combi; | |
332 | int rem_combi; | |
333 | bool have_combinations = false; | |
334 | ||
335 | nla_for_each_nested(nl_combi, tb_msg[NL80211_ATTR_INTERFACE_COMBINATIONS], rem_combi) { | |
336 | static struct nla_policy iface_combination_policy[NUM_NL80211_IFACE_COMB] = { | |
337 | [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, | |
338 | [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, | |
339 | [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, | |
340 | [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, | |
341 | [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, | |
342 | }; | |
343 | struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; | |
344 | static struct nla_policy iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { | |
345 | [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, | |
346 | [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, | |
347 | }; | |
348 | struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; | |
349 | struct nlattr *nl_limit; | |
350 | int err, rem_limit; | |
351 | bool comma = false; | |
352 | ||
353 | if (!have_combinations) { | |
354 | printf("\tvalid interface combinations:\n"); | |
355 | have_combinations = true; | |
356 | } | |
357 | ||
358 | printf("\t\t * "); | |
359 | ||
360 | err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, | |
361 | nl_combi, iface_combination_policy); | |
362 | if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || | |
363 | !tb_comb[NL80211_IFACE_COMB_MAXNUM] || | |
364 | !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) { | |
365 | printf(" <failed to parse>\n"); | |
366 | goto broken_combination; | |
367 | } | |
368 | ||
369 | nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], rem_limit) { | |
370 | bool ift_comma = false; | |
371 | ||
372 | err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, | |
373 | nl_limit, iface_limit_policy); | |
374 | if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) { | |
375 | printf("<failed to parse>\n"); | |
376 | goto broken_combination; | |
377 | } | |
378 | ||
379 | if (comma) | |
380 | printf(", "); | |
381 | comma = true; | |
382 | printf("#{"); | |
383 | ||
384 | nla_for_each_nested(nl_mode, tb_limit[NL80211_IFACE_LIMIT_TYPES], rem_mode) { | |
385 | printf("%s %s", ift_comma ? "," : "", | |
386 | iftype_name(nla_type(nl_mode))); | |
387 | ift_comma = true; | |
388 | } | |
389 | printf(" } <= %u", nla_get_u32(tb_limit[NL80211_IFACE_LIMIT_MAX])); | |
390 | } | |
391 | printf(",\n\t\t "); | |
392 | ||
393 | printf("total <= %d, #channels <= %d%s", | |
394 | nla_get_u32(tb_comb[NL80211_IFACE_COMB_MAXNUM]), | |
395 | nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]), | |
396 | tb_comb[NL80211_IFACE_COMB_STA_AP_BI_MATCH] ? | |
397 | ", STA/AP BI must match" : ""); | |
398 | if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) { | |
399 | unsigned long widths = nla_get_u32(tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]); | |
400 | ||
401 | if (widths) { | |
402 | int width; | |
403 | bool first = true; | |
404 | ||
405 | printf(", radar detect widths: {"); | |
406 | for (width = 0; width < 32; width++) | |
407 | if (widths & (1 << width)) { | |
408 | printf("%s %s", | |
409 | first ? "":",", | |
410 | channel_width_name(width)); | |
411 | first = false; | |
412 | } | |
413 | printf(" }\n"); | |
414 | } | |
415 | } | |
416 | printf("\n"); | |
417 | broken_combination: | |
418 | ; | |
419 | } | |
420 | ||
421 | if (!have_combinations) | |
422 | printf("\tinterface combinations are not supported\n"); | |
423 | } | |
424 | ||
425 | if (tb_msg[NL80211_ATTR_SUPPORTED_COMMANDS]) { | |
426 | printf("\tSupported commands:\n"); | |
427 | nla_for_each_nested(nl_cmd, tb_msg[NL80211_ATTR_SUPPORTED_COMMANDS], rem_cmd) | |
428 | printf("\t\t * %s\n", command_name(nla_get_u32(nl_cmd))); | |
429 | } | |
430 | ||
431 | if (tb_msg[NL80211_ATTR_TX_FRAME_TYPES]) { | |
432 | printf("\tSupported TX frame types:\n"); | |
433 | nla_for_each_nested(nl_if, tb_msg[NL80211_ATTR_TX_FRAME_TYPES], rem_if) { | |
434 | bool printed = false; | |
435 | nla_for_each_nested(nl_ftype, nl_if, rem_ftype) { | |
436 | if (!printed) | |
437 | printf("\t\t * %s:", iftype_name(nla_type(nl_if))); | |
438 | printed = true; | |
439 | printf(" 0x%.2x", nla_get_u16(nl_ftype)); | |
440 | } | |
441 | if (printed) | |
442 | printf("\n"); | |
443 | } | |
444 | } | |
445 | ||
446 | if (tb_msg[NL80211_ATTR_RX_FRAME_TYPES]) { | |
447 | printf("\tSupported RX frame types:\n"); | |
448 | nla_for_each_nested(nl_if, tb_msg[NL80211_ATTR_RX_FRAME_TYPES], rem_if) { | |
449 | bool printed = false; | |
450 | nla_for_each_nested(nl_ftype, nl_if, rem_ftype) { | |
451 | if (!printed) | |
452 | printf("\t\t * %s:", iftype_name(nla_type(nl_if))); | |
453 | printed = true; | |
454 | printf(" 0x%.2x", nla_get_u16(nl_ftype)); | |
455 | } | |
456 | if (printed) | |
457 | printf("\n"); | |
458 | } | |
459 | } | |
460 | ||
461 | if (tb_msg[NL80211_ATTR_SUPPORT_IBSS_RSN]) | |
462 | printf("\tDevice supports RSN-IBSS.\n"); | |
463 | ||
464 | if (tb_msg[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]) { | |
465 | struct nlattr *tb_wowlan[NUM_NL80211_WOWLAN_TRIG]; | |
466 | static struct nla_policy wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
467 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
468 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
469 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
470 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .minlen = 12 }, | |
471 | [NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED] = { .type = NLA_FLAG }, | |
472 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, | |
473 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
474 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
475 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
476 | [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_U32 }, | |
477 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, | |
478 | }; | |
479 | struct nl80211_pattern_support *pat; | |
480 | int err; | |
481 | ||
482 | err = nla_parse_nested(tb_wowlan, MAX_NL80211_WOWLAN_TRIG, | |
483 | tb_msg[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED], | |
484 | wowlan_policy); | |
485 | printf("\tWoWLAN support:"); | |
486 | if (err) { | |
487 | printf(" <failed to parse>\n"); | |
488 | } else { | |
489 | printf("\n"); | |
490 | if (tb_wowlan[NL80211_WOWLAN_TRIG_ANY]) | |
491 | printf("\t\t * wake up on anything (device continues operating normally)\n"); | |
492 | if (tb_wowlan[NL80211_WOWLAN_TRIG_DISCONNECT]) | |
493 | printf("\t\t * wake up on disconnect\n"); | |
494 | if (tb_wowlan[NL80211_WOWLAN_TRIG_MAGIC_PKT]) | |
495 | printf("\t\t * wake up on magic packet\n"); | |
496 | if (tb_wowlan[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { | |
497 | pat = nla_data(tb_wowlan[NL80211_WOWLAN_TRIG_PKT_PATTERN]); | |
498 | printf("\t\t * wake up on pattern match, up to %u patterns of %u-%u bytes,\n" | |
499 | "\t\t maximum packet offset %u bytes\n", | |
500 | pat->max_patterns, pat->min_pattern_len, pat->max_pattern_len, | |
501 | (nla_len(tb_wowlan[NL80211_WOWLAN_TRIG_PKT_PATTERN]) < | |
502 | sizeof(*pat)) ? 0 : pat->max_pkt_offset); | |
503 | } | |
504 | if (tb_wowlan[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) | |
505 | printf("\t\t * can do GTK rekeying\n"); | |
506 | if (tb_wowlan[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) | |
507 | printf("\t\t * wake up on GTK rekey failure\n"); | |
508 | if (tb_wowlan[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) | |
509 | printf("\t\t * wake up on EAP identity request\n"); | |
510 | if (tb_wowlan[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) | |
511 | printf("\t\t * wake up on 4-way handshake\n"); | |
512 | if (tb_wowlan[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) | |
513 | printf("\t\t * wake up on rfkill release\n"); | |
514 | if (tb_wowlan[NL80211_WOWLAN_TRIG_NET_DETECT]) | |
515 | printf("\t\t * wake up on network detection, up to %d match sets\n", | |
516 | nla_get_u32(tb_wowlan[NL80211_WOWLAN_TRIG_NET_DETECT])); | |
517 | if (tb_wowlan[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) | |
518 | printf("\t\t * wake up on TCP connection\n"); | |
519 | } | |
520 | } | |
521 | ||
522 | if (tb_msg[NL80211_ATTR_ROAM_SUPPORT]) | |
523 | printf("\tDevice supports roaming.\n"); | |
524 | ||
525 | if (tb_msg[NL80211_ATTR_SUPPORT_AP_UAPSD]) | |
526 | printf("\tDevice supports AP-side u-APSD.\n"); | |
527 | ||
528 | if (tb_msg[NL80211_ATTR_HT_CAPABILITY_MASK]) { | |
529 | struct ieee80211_ht_cap *cm; | |
530 | printf("\tHT Capability overrides:\n"); | |
531 | if (nla_len(tb_msg[NL80211_ATTR_HT_CAPABILITY_MASK]) >= sizeof(*cm)) { | |
532 | cm = nla_data(tb_msg[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
533 | printf("\t\t * MCS: %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx" | |
534 | " %02hhx %02hhx %02hhx %02hhx\n", | |
535 | cm->mcs.rx_mask[0], cm->mcs.rx_mask[1], | |
536 | cm->mcs.rx_mask[2], cm->mcs.rx_mask[3], | |
537 | cm->mcs.rx_mask[4], cm->mcs.rx_mask[5], | |
538 | cm->mcs.rx_mask[6], cm->mcs.rx_mask[7], | |
539 | cm->mcs.rx_mask[8], cm->mcs.rx_mask[9]); | |
540 | if (cm->cap_info & htole16(IEEE80211_HT_CAP_MAX_AMSDU)) | |
541 | printf("\t\t * maximum A-MSDU length\n"); | |
542 | if (cm->cap_info & htole16(IEEE80211_HT_CAP_SUP_WIDTH_20_40)) | |
543 | printf("\t\t * supported channel width\n"); | |
544 | if (cm->cap_info & htole16(IEEE80211_HT_CAP_SGI_40)) | |
545 | printf("\t\t * short GI for 40 MHz\n"); | |
546 | if (cm->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_FACTOR) | |
547 | printf("\t\t * max A-MPDU length exponent\n"); | |
548 | if (cm->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_DENSITY) | |
549 | printf("\t\t * min MPDU start spacing\n"); | |
550 | } else { | |
551 | printf("\tERROR: capabilities mask is too short, expected: %d, received: %d\n", | |
552 | (int)(sizeof(*cm)), | |
553 | (int)(nla_len(tb_msg[NL80211_ATTR_HT_CAPABILITY_MASK]))); | |
554 | } | |
555 | } | |
556 | ||
557 | if (tb_msg[NL80211_ATTR_FEATURE_FLAGS]) { | |
558 | unsigned int features = nla_get_u32(tb_msg[NL80211_ATTR_FEATURE_FLAGS]); | |
559 | ||
560 | if (features & NL80211_FEATURE_SK_TX_STATUS) | |
561 | printf("\tDevice supports TX status socket option.\n"); | |
562 | if (features & NL80211_FEATURE_HT_IBSS) | |
563 | printf("\tDevice supports HT-IBSS.\n"); | |
564 | if (features & NL80211_FEATURE_INACTIVITY_TIMER) | |
565 | printf("\tDevice has client inactivity timer.\n"); | |
566 | if (features & NL80211_FEATURE_CELL_BASE_REG_HINTS) | |
567 | printf("\tDevice accepts cell base station regulatory hints.\n"); | |
568 | if (features & NL80211_FEATURE_P2P_DEVICE_NEEDS_CHANNEL) | |
569 | printf("\tP2P Device uses a channel (of the concurrent ones)\n"); | |
570 | if (features & NL80211_FEATURE_SAE) | |
571 | printf("\tDevice supports SAE with AUTHENTICATE command\n"); | |
572 | if (features & NL80211_FEATURE_LOW_PRIORITY_SCAN) | |
573 | printf("\tDevice supports low priority scan.\n"); | |
574 | if (features & NL80211_FEATURE_SCAN_FLUSH) | |
575 | printf("\tDevice supports scan flush.\n"); | |
576 | if (features & NL80211_FEATURE_AP_SCAN) | |
577 | printf("\tDevice supports AP scan.\n"); | |
578 | if (features & NL80211_FEATURE_VIF_TXPOWER) | |
579 | printf("\tDevice supports per-vif TX power setting\n"); | |
580 | if (features & NL80211_FEATURE_NEED_OBSS_SCAN) | |
581 | printf("\tUserspace should do OBSS scan and generate 20/40 coex reports\n"); | |
582 | if (features & NL80211_FEATURE_P2P_GO_CTWIN) | |
583 | printf("\tP2P GO supports CT window setting\n"); | |
584 | if (features & NL80211_FEATURE_P2P_GO_OPPPS) | |
585 | printf("\tP2P GO supports opportunistic powersave setting\n"); | |
586 | if (features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) | |
587 | printf("\tDriver supports full state transitions for AP/GO clients\n"); | |
588 | if (features & NL80211_FEATURE_USERSPACE_MPM) | |
589 | printf("\tDriver supports a userspace MPM\n"); | |
590 | if (features & NL80211_FEATURE_ACTIVE_MONITOR) | |
591 | printf("\tDevice supports active monitor (which will ACK incoming frames)\n"); | |
592 | if (features & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE) | |
593 | printf("\tDriver/device bandwidth changes during BSS lifetime (AP/GO mode)\n"); | |
594 | if (features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) | |
595 | printf("\tDevice adds DS IE to probe requests\n"); | |
596 | if (features & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES) | |
597 | printf("\tDevice adds WFA TPC Report IE to probe requests\n"); | |
598 | if (features & NL80211_FEATURE_QUIET) | |
599 | printf("\tDevice supports quiet requests from AP\n"); | |
600 | if (features & NL80211_FEATURE_TX_POWER_INSERTION) | |
601 | printf("\tDevice can update TPC Report IE\n"); | |
602 | if (features & NL80211_FEATURE_ACKTO_ESTIMATION) | |
603 | printf("\tDevice supports ACK timeout estimation.\n"); | |
604 | if (features & NL80211_FEATURE_STATIC_SMPS) | |
605 | printf("\tDevice supports static SMPS\n"); | |
606 | if (features & NL80211_FEATURE_DYNAMIC_SMPS) | |
607 | printf("\tDevice supports dynamic SMPS\n"); | |
608 | if (features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) | |
609 | printf("\tDevice supports WMM-AC admission (TSPECs)\n"); | |
610 | if (features & NL80211_FEATURE_MAC_ON_CREATE) | |
611 | printf("\tDevice supports configuring vdev MAC-addr on create.\n"); | |
612 | if (features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) | |
613 | printf("\tDevice supports TDLS channel switching\n"); | |
614 | } | |
615 | ||
616 | if (tb_msg[NL80211_ATTR_EXT_FEATURES]) { | |
617 | struct nlattr *tb = tb_msg[NL80211_ATTR_EXT_FEATURES]; | |
618 | ||
619 | if (ext_feature_isset(nla_data(tb), nla_len(tb), | |
620 | NL80211_EXT_FEATURE_VHT_IBSS)) | |
621 | printf("\tDevice supports VHT-IBSS.\n"); | |
622 | } | |
623 | ||
624 | if (tb_msg[NL80211_ATTR_TDLS_SUPPORT]) | |
625 | printf("\tDevice supports T-DLS.\n"); | |
626 | ||
627 | if (tb_msg[NL80211_ATTR_COALESCE_RULE]) { | |
628 | struct nl80211_coalesce_rule_support *rule; | |
629 | struct nl80211_pattern_support *pat; | |
630 | ||
631 | printf("\tCoalesce support:\n"); | |
632 | rule = nla_data(tb_msg[NL80211_ATTR_COALESCE_RULE]); | |
633 | pat = &rule->pat; | |
634 | printf("\t\t * Maximum %u coalesce rules supported\n" | |
635 | "\t\t * Each rule contains upto %u patterns of %u-%u bytes,\n" | |
636 | "\t\t maximum packet offset %u bytes\n" | |
637 | "\t\t * Maximum supported coalescing delay %u msecs\n", | |
638 | rule->max_rules, pat->max_patterns, pat->min_pattern_len, | |
639 | pat->max_pattern_len, pat->max_pkt_offset, rule->max_delay); | |
640 | } | |
641 | ||
642 | return NL_SKIP; | |
643 | } | |
644 | ||
645 | static bool nl80211_has_split_wiphy = false; | |
646 | ||
647 | static int handle_info(struct nl80211_state *state, | |
648 | struct nl_msg *msg, | |
649 | int argc, char **argv, | |
650 | enum id_input id) | |
651 | { | |
652 | char *feat_args[] = { "features", "-q" }; | |
653 | int err; | |
654 | ||
655 | err = handle_cmd(state, CIB_NONE, 2, feat_args); | |
656 | if (!err && nl80211_has_split_wiphy) { | |
657 | nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); | |
658 | nlmsg_hdr(msg)->nlmsg_flags |= NLM_F_DUMP; | |
659 | } | |
660 | ||
661 | register_handler(print_phy_handler, NULL); | |
662 | ||
663 | return 0; | |
664 | } | |
665 | __COMMAND(NULL, info, "info", NULL, NL80211_CMD_GET_WIPHY, 0, 0, CIB_PHY, handle_info, | |
666 | "Show capabilities for the specified wireless device.", NULL); | |
667 | TOPLEVEL(list, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info, | |
668 | "List all wireless devices and their capabilities."); | |
669 | TOPLEVEL(phy, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info, NULL); | |
670 | ||
671 | static int handle_commands(struct nl80211_state *state, struct nl_msg *msg, | |
672 | int argc, char **argv, enum id_input id) | |
673 | { | |
674 | int i; | |
675 | for (i = 1; i < NL80211_CMD_MAX; i++) | |
676 | printf("%d (0x%x): %s\n", i, i, command_name(i)); | |
677 | /* don't send netlink messages */ | |
678 | return 2; | |
679 | } | |
680 | TOPLEVEL(commands, NULL, NL80211_CMD_GET_WIPHY, 0, CIB_NONE, handle_commands, | |
681 | "list all known commands and their decimal & hex value"); | |
682 | ||
683 | static int print_feature_handler(struct nl_msg *msg, void *arg) | |
684 | { | |
685 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
686 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
687 | bool print = (unsigned long)arg; | |
688 | #define maybe_printf(...) do { if (print) printf(__VA_ARGS__); } while (0) | |
689 | ||
690 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
691 | genlmsg_attrlen(gnlh, 0), NULL); | |
692 | ||
693 | if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) { | |
694 | uint32_t feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); | |
695 | ||
696 | maybe_printf("nl80211 features: 0x%x\n", feat); | |
697 | if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) { | |
698 | maybe_printf("\t* split wiphy dump\n"); | |
699 | nl80211_has_split_wiphy = true; | |
700 | } | |
701 | } | |
702 | ||
703 | return NL_SKIP; | |
704 | } | |
705 | ||
706 | static int handle_features(struct nl80211_state *state, struct nl_msg *msg, | |
707 | int argc, char **argv, enum id_input id) | |
708 | { | |
709 | unsigned long print = argc == 0 || strcmp(argv[0], "-q"); | |
710 | register_handler(print_feature_handler, (void *)print); | |
711 | return 0; | |
712 | } | |
713 | ||
714 | TOPLEVEL(features, "", NL80211_CMD_GET_PROTOCOL_FEATURES, 0, CIB_NONE, | |
715 | handle_features, ""); |