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>
14 static void print_flag(const char *name
, int *open
)
24 static char *cipher_name(__u32 c
)
30 return "WEP40 (00-0f-ac:1)";
32 return "WEP104 (00-0f-ac:5)";
34 return "TKIP (00-0f-ac:2)";
36 return "CCMP (00-0f-ac:4)";
38 return "CMAC (00-0f-ac:6)";
40 return "GCMP (00-0f-ac:8)";
42 return "WPI-SMS4 (00-14-72:1)";
44 sprintf(buf
, "%.2x-%.2x-%.2x:%d",
45 c
>> 24, (c
>> 16) & 0xff,
46 (c
>> 8) & 0xff, c
& 0xff);
52 static int print_phy_handler(struct nl_msg
*msg
, void *arg
)
54 struct nlattr
*tb_msg
[NL80211_ATTR_MAX
+ 1];
55 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
57 struct nlattr
*tb_band
[NL80211_BAND_ATTR_MAX
+ 1];
59 struct nlattr
*tb_freq
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
60 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
61 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
62 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
63 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
64 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
65 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
66 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
69 struct nlattr
*tb_rate
[NL80211_BITRATE_ATTR_MAX
+ 1];
70 static struct nla_policy rate_policy
[NL80211_BITRATE_ATTR_MAX
+ 1] = {
71 [NL80211_BITRATE_ATTR_RATE
] = { .type
= NLA_U32
},
72 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE
] = { .type
= NLA_FLAG
},
75 struct nlattr
*nl_band
;
76 struct nlattr
*nl_freq
;
77 struct nlattr
*nl_rate
;
78 struct nlattr
*nl_mode
;
79 struct nlattr
*nl_cmd
;
80 struct nlattr
*nl_if
, *nl_ftype
;
82 int rem_band
, rem_freq
, rem_rate
, rem_mode
, rem_cmd
, rem_ftype
, rem_if
;
85 nla_parse(tb_msg
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
86 genlmsg_attrlen(gnlh
, 0), NULL
);
88 if (!tb_msg
[NL80211_ATTR_WIPHY_BANDS
])
91 if (tb_msg
[NL80211_ATTR_WIPHY_NAME
])
92 printf("Wiphy %s\n", nla_get_string(tb_msg
[NL80211_ATTR_WIPHY_NAME
]));
94 nla_for_each_nested(nl_band
, tb_msg
[NL80211_ATTR_WIPHY_BANDS
], rem_band
) {
95 printf("\tBand %d:\n", bandidx
);
98 nla_parse(tb_band
, NL80211_BAND_ATTR_MAX
, nla_data(nl_band
),
99 nla_len(nl_band
), NULL
);
101 #ifdef NL80211_BAND_ATTR_HT_CAPA
102 if (tb_band
[NL80211_BAND_ATTR_HT_CAPA
]) {
103 __u16 cap
= nla_get_u16(tb_band
[NL80211_BAND_ATTR_HT_CAPA
]);
104 print_ht_capability(cap
);
106 if (tb_band
[NL80211_BAND_ATTR_HT_AMPDU_FACTOR
]) {
107 __u8 exponent
= nla_get_u8(tb_band
[NL80211_BAND_ATTR_HT_AMPDU_FACTOR
]);
108 print_ampdu_length(exponent
);
110 if (tb_band
[NL80211_BAND_ATTR_HT_AMPDU_DENSITY
]) {
111 __u8 spacing
= nla_get_u8(tb_band
[NL80211_BAND_ATTR_HT_AMPDU_DENSITY
]);
112 print_ampdu_spacing(spacing
);
114 if (tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
] &&
115 nla_len(tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
]) == 16)
116 print_ht_mcs(nla_data(tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
]));
119 printf("\t\tFrequencies:\n");
121 nla_for_each_nested(nl_freq
, tb_band
[NL80211_BAND_ATTR_FREQS
], rem_freq
) {
123 nla_parse(tb_freq
, NL80211_FREQUENCY_ATTR_MAX
, nla_data(nl_freq
),
124 nla_len(nl_freq
), freq_policy
);
125 if (!tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
])
127 freq
= nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
]);
128 printf("\t\t\t* %d MHz [%d]", freq
, ieee80211_frequency_to_channel(freq
));
130 if (tb_freq
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] &&
131 !tb_freq
[NL80211_FREQUENCY_ATTR_DISABLED
])
132 printf(" (%.1f dBm)", 0.01 * nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]));
135 if (tb_freq
[NL80211_FREQUENCY_ATTR_DISABLED
]) {
136 print_flag("disabled", &open
);
139 if (tb_freq
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
])
140 print_flag("passive scanning", &open
);
141 if (tb_freq
[NL80211_FREQUENCY_ATTR_NO_IBSS
])
142 print_flag("no IBSS", &open
);
143 if (tb_freq
[NL80211_FREQUENCY_ATTR_RADAR
])
144 print_flag("radar detection", &open
);
151 printf("\t\tBitrates (non-HT):\n");
153 nla_for_each_nested(nl_rate
, tb_band
[NL80211_BAND_ATTR_RATES
], rem_rate
) {
154 nla_parse(tb_rate
, NL80211_BITRATE_ATTR_MAX
, nla_data(nl_rate
),
155 nla_len(nl_rate
), rate_policy
);
156 if (!tb_rate
[NL80211_BITRATE_ATTR_RATE
])
158 printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate
[NL80211_BITRATE_ATTR_RATE
]));
160 if (tb_rate
[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE
])
161 print_flag("short preamble supported", &open
);
168 if (tb_msg
[NL80211_ATTR_MAX_NUM_SCAN_SSIDS
])
169 printf("\tmax # scan SSIDs: %d\n",
170 nla_get_u8(tb_msg
[NL80211_ATTR_MAX_NUM_SCAN_SSIDS
]));
171 if (tb_msg
[NL80211_ATTR_MAX_SCAN_IE_LEN
])
172 printf("\tmax scan IEs length: %d bytes\n",
173 nla_get_u16(tb_msg
[NL80211_ATTR_MAX_SCAN_IE_LEN
]));
175 if (tb_msg
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD
]) {
178 frag
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD
]);
179 if (frag
!= (unsigned int)-1)
180 printf("\tFragmentation threshold: %d\n", frag
);
183 if (tb_msg
[NL80211_ATTR_WIPHY_RTS_THRESHOLD
]) {
186 rts
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_RTS_THRESHOLD
]);
187 if (rts
!= (unsigned int)-1)
188 printf("\tRTS threshold: %d\n", rts
);
191 if (tb_msg
[NL80211_ATTR_WIPHY_COVERAGE_CLASS
]) {
192 unsigned char coverage
;
194 coverage
= nla_get_u8(tb_msg
[NL80211_ATTR_WIPHY_COVERAGE_CLASS
]);
195 /* See handle_distance() for an explanation where the '450' comes from */
196 printf("\tCoverage class: %d (up to %dm)\n", coverage
, 450 * coverage
);
199 if (tb_msg
[NL80211_ATTR_CIPHER_SUITES
]) {
200 int num
= nla_len(tb_msg
[NL80211_ATTR_CIPHER_SUITES
]) / sizeof(__u32
);
202 __u32
*ciphers
= nla_data(tb_msg
[NL80211_ATTR_CIPHER_SUITES
]);
204 printf("\tSupported Ciphers:\n");
205 for (i
= 0; i
< num
; i
++)
207 cipher_name(ciphers
[i
]));
211 if (tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX
] &&
212 tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX
])
213 printf("\tAvailable Antennas: TX %#x RX %#x\n",
214 nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX
]),
215 nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX
]));
217 if (tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_TX
] &&
218 tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_RX
])
219 printf("\tConfigured Antennas: TX %#x RX %#x\n",
220 nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_TX
]),
221 nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_ANTENNA_RX
]));
223 if (tb_msg
[NL80211_ATTR_SUPPORTED_IFTYPES
]) {
224 printf("\tSupported interface modes:\n");
225 nla_for_each_nested(nl_mode
, tb_msg
[NL80211_ATTR_SUPPORTED_IFTYPES
], rem_mode
)
226 printf("\t\t * %s\n", iftype_name(nla_type(nl_mode
)));
229 if (tb_msg
[NL80211_ATTR_SOFTWARE_IFTYPES
]) {
230 printf("\tsoftware interface modes (can always be added):\n");
231 nla_for_each_nested(nl_mode
, tb_msg
[NL80211_ATTR_SOFTWARE_IFTYPES
], rem_mode
)
232 printf("\t\t * %s\n", iftype_name(nla_type(nl_mode
)));
235 if (tb_msg
[NL80211_ATTR_INTERFACE_COMBINATIONS
]) {
236 struct nlattr
*nl_combi
;
238 bool have_combinations
= false;
240 nla_for_each_nested(nl_combi
, tb_msg
[NL80211_ATTR_INTERFACE_COMBINATIONS
], rem_combi
) {
241 static struct nla_policy iface_combination_policy
[NUM_NL80211_IFACE_COMB
] = {
242 [NL80211_IFACE_COMB_LIMITS
] = { .type
= NLA_NESTED
},
243 [NL80211_IFACE_COMB_MAXNUM
] = { .type
= NLA_U32
},
244 [NL80211_IFACE_COMB_STA_AP_BI_MATCH
] = { .type
= NLA_FLAG
},
245 [NL80211_IFACE_COMB_NUM_CHANNELS
] = { .type
= NLA_U32
},
247 struct nlattr
*tb_comb
[NUM_NL80211_IFACE_COMB
];
248 static struct nla_policy iface_limit_policy
[NUM_NL80211_IFACE_LIMIT
] = {
249 [NL80211_IFACE_LIMIT_TYPES
] = { .type
= NLA_NESTED
},
250 [NL80211_IFACE_LIMIT_MAX
] = { .type
= NLA_U32
},
252 struct nlattr
*tb_limit
[NUM_NL80211_IFACE_LIMIT
];
253 struct nlattr
*nl_limit
;
257 if (!have_combinations
) {
258 printf("\tvalid interface combinations:\n");
259 have_combinations
= true;
264 err
= nla_parse_nested(tb_comb
, MAX_NL80211_IFACE_COMB
,
265 nl_combi
, iface_combination_policy
);
266 if (err
|| !tb_comb
[NL80211_IFACE_COMB_LIMITS
] ||
267 !tb_comb
[NL80211_IFACE_COMB_MAXNUM
] ||
268 !tb_comb
[NL80211_IFACE_COMB_NUM_CHANNELS
]) {
269 printf(" <failed to parse>\n");
270 goto broken_combination
;
273 nla_for_each_nested(nl_limit
, tb_comb
[NL80211_IFACE_COMB_LIMITS
], rem_limit
) {
274 bool ift_comma
= false;
276 err
= nla_parse_nested(tb_limit
, MAX_NL80211_IFACE_LIMIT
,
277 nl_limit
, iface_limit_policy
);
278 if (err
|| !tb_limit
[NL80211_IFACE_LIMIT_TYPES
]) {
279 printf("<failed to parse>\n");
280 goto broken_combination
;
288 nla_for_each_nested(nl_mode
, tb_limit
[NL80211_IFACE_LIMIT_TYPES
], rem_mode
) {
289 printf("%s %s", ift_comma
? "," : "",
290 iftype_name(nla_type(nl_mode
)));
293 printf(" } <= %u", nla_get_u32(tb_limit
[NL80211_IFACE_LIMIT_MAX
]));
297 printf("total <= %d, #channels <= %d%s\n",
298 nla_get_u32(tb_comb
[NL80211_IFACE_COMB_MAXNUM
]),
299 nla_get_u32(tb_comb
[NL80211_IFACE_COMB_NUM_CHANNELS
]),
300 tb_comb
[NL80211_IFACE_COMB_STA_AP_BI_MATCH
] ?
301 ", STA/AP BI must match" : "");
306 if (!have_combinations
)
307 printf("\tinterface combinations are not supported\n");
310 if (tb_msg
[NL80211_ATTR_SUPPORTED_COMMANDS
]) {
311 printf("\tSupported commands:\n");
312 nla_for_each_nested(nl_cmd
, tb_msg
[NL80211_ATTR_SUPPORTED_COMMANDS
], rem_cmd
)
313 printf("\t\t * %s\n", command_name(nla_get_u32(nl_cmd
)));
316 if (tb_msg
[NL80211_ATTR_TX_FRAME_TYPES
]) {
317 printf("\tSupported TX frame types:\n");
318 nla_for_each_nested(nl_if
, tb_msg
[NL80211_ATTR_TX_FRAME_TYPES
], rem_if
) {
319 bool printed
= false;
320 nla_for_each_nested(nl_ftype
, nl_if
, rem_ftype
) {
322 printf("\t\t * %s:", iftype_name(nla_type(nl_if
)));
324 printf(" 0x%.2x", nla_get_u16(nl_ftype
));
331 if (tb_msg
[NL80211_ATTR_RX_FRAME_TYPES
]) {
332 printf("\tSupported RX frame types:\n");
333 nla_for_each_nested(nl_if
, tb_msg
[NL80211_ATTR_RX_FRAME_TYPES
], rem_if
) {
334 bool printed
= false;
335 nla_for_each_nested(nl_ftype
, nl_if
, rem_ftype
) {
337 printf("\t\t * %s:", iftype_name(nla_type(nl_if
)));
339 printf(" 0x%.2x", nla_get_u16(nl_ftype
));
346 if (tb_msg
[NL80211_ATTR_SUPPORT_IBSS_RSN
])
347 printf("\tDevice supports RSN-IBSS.\n");
349 if (tb_msg
[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED
]) {
350 struct nlattr
*tb_wowlan
[NUM_NL80211_WOWLAN_TRIG
];
351 static struct nla_policy wowlan_policy
[NUM_NL80211_WOWLAN_TRIG
] = {
352 [NL80211_WOWLAN_TRIG_ANY
] = { .type
= NLA_FLAG
},
353 [NL80211_WOWLAN_TRIG_DISCONNECT
] = { .type
= NLA_FLAG
},
354 [NL80211_WOWLAN_TRIG_MAGIC_PKT
] = { .type
= NLA_FLAG
},
355 [NL80211_WOWLAN_TRIG_PKT_PATTERN
] = {
356 .minlen
= sizeof(struct nl80211_wowlan_pattern_support
),
358 [NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED
] = { .type
= NLA_FLAG
},
359 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE
] = { .type
= NLA_FLAG
},
360 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST
] = { .type
= NLA_FLAG
},
361 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE
] = { .type
= NLA_FLAG
},
362 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE
] = { .type
= NLA_FLAG
},
364 struct nl80211_wowlan_pattern_support
*pat
;
367 err
= nla_parse_nested(tb_wowlan
, MAX_NL80211_WOWLAN_TRIG
,
368 tb_msg
[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED
],
370 printf("\tWoWLAN support:");
372 printf(" <failed to parse>\n");
375 if (tb_wowlan
[NL80211_WOWLAN_TRIG_ANY
])
376 printf("\t\t * wake up on anything (device continues operating normally)\n");
377 if (tb_wowlan
[NL80211_WOWLAN_TRIG_DISCONNECT
])
378 printf("\t\t * wake up on disconnect\n");
379 if (tb_wowlan
[NL80211_WOWLAN_TRIG_MAGIC_PKT
])
380 printf("\t\t * wake up on magic packet\n");
381 if (tb_wowlan
[NL80211_WOWLAN_TRIG_PKT_PATTERN
]) {
382 pat
= nla_data(tb_wowlan
[NL80211_WOWLAN_TRIG_PKT_PATTERN
]);
383 printf("\t\t * wake up on pattern match, up to %u patterns of %u-%u bytes\n",
384 pat
->max_patterns
, pat
->min_pattern_len
, pat
->max_pattern_len
);
386 if (tb_wowlan
[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED
])
387 printf("\t\t * can do GTK rekeying\n");
388 if (tb_wowlan
[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE
])
389 printf("\t\t * wake up on GTK rekey failure\n");
390 if (tb_wowlan
[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST
])
391 printf("\t\t * wake up on EAP identity request\n");
392 if (tb_wowlan
[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE
])
393 printf("\t\t * wake up on 4-way handshake\n");
394 if (tb_wowlan
[NL80211_WOWLAN_TRIG_RFKILL_RELEASE
])
395 printf("\t\t * wake up on rfkill release\n");
399 if (tb_msg
[NL80211_ATTR_ROAM_SUPPORT
])
400 printf("\tDevice supports roaming.\n");
402 if (tb_msg
[NL80211_ATTR_SUPPORT_AP_UAPSD
])
403 printf("\tDevice supports AP-side u-APSD.\n");
405 if (tb_msg
[NL80211_ATTR_HT_CAPABILITY_MASK
]) {
406 struct ieee80211_ht_cap
*cm
;
407 printf("\tHT Capability overrides:\n");
408 if (nla_len(tb_msg
[NL80211_ATTR_HT_CAPABILITY_MASK
]) >= sizeof(*cm
)) {
409 cm
= nla_data(tb_msg
[NL80211_ATTR_HT_CAPABILITY_MASK
]);
410 printf("\t\t * MCS: %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx"
411 " %02hhx %02hhx %02hhx %02hhx\n",
412 cm
->mcs
.rx_mask
[0], cm
->mcs
.rx_mask
[1],
413 cm
->mcs
.rx_mask
[2], cm
->mcs
.rx_mask
[3],
414 cm
->mcs
.rx_mask
[4], cm
->mcs
.rx_mask
[5],
415 cm
->mcs
.rx_mask
[6], cm
->mcs
.rx_mask
[7],
416 cm
->mcs
.rx_mask
[8], cm
->mcs
.rx_mask
[9]);
417 if (cm
->cap_info
& htole16(IEEE80211_HT_CAP_MAX_AMSDU
))
418 printf("\t\t * maximum A-MSDU length\n");
419 if (cm
->cap_info
& htole16(IEEE80211_HT_CAP_SUP_WIDTH_20_40
))
420 printf("\t\t * supported channel width\n");
421 if (cm
->cap_info
& htole16(IEEE80211_HT_CAP_SGI_40
))
422 printf("\t\t * short GI for 40 MHz\n");
423 if (cm
->ampdu_params_info
& IEEE80211_HT_AMPDU_PARM_FACTOR
)
424 printf("\t\t * max A-MPDU length exponent\n");
425 if (cm
->ampdu_params_info
& IEEE80211_HT_AMPDU_PARM_DENSITY
)
426 printf("\t\t * min MPDU start spacing\n");
428 printf("\tERROR: capabilities mask is too short, expected: %d, received: %d\n",
430 (int)(nla_len(tb_msg
[NL80211_ATTR_HT_CAPABILITY_MASK
])));
434 if (tb_msg
[NL80211_ATTR_FEATURE_FLAGS
]) {
435 if (nla_get_u32(tb_msg
[NL80211_ATTR_FEATURE_FLAGS
]) &
436 NL80211_FEATURE_SK_TX_STATUS
)
437 printf("\tDevice supports TX status socket option.\n");
438 if (nla_get_u32(tb_msg
[NL80211_ATTR_FEATURE_FLAGS
]) &
439 NL80211_FEATURE_HT_IBSS
)
440 printf("\tDevice supports HT-IBSS.\n");
446 static int handle_info(struct nl80211_state
*state
,
449 int argc
, char **argv
,
452 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_phy_handler
, NULL
);
456 __COMMAND(NULL
, info
, "info", NULL
, NL80211_CMD_GET_WIPHY
, 0, 0, CIB_PHY
, handle_info
,
457 "Show capabilities for the specified wireless device.", NULL
);
458 TOPLEVEL(list
, NULL
, NL80211_CMD_GET_WIPHY
, NLM_F_DUMP
, CIB_NONE
, handle_info
,
459 "List all wireless devices and their capabilities.");
460 TOPLEVEL(phy
, NULL
, NL80211_CMD_GET_WIPHY
, NLM_F_DUMP
, CIB_NONE
, handle_info
, NULL
);