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 int print_phy_handler(struct nl_msg
*msg
, void *arg
)
26 struct nlattr
*tb_msg
[NL80211_ATTR_MAX
+ 1];
27 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
29 struct nlattr
*tb_band
[NL80211_BAND_ATTR_MAX
+ 1];
31 struct nlattr
*tb_freq
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
32 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
33 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
34 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
35 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
36 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
37 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
38 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
41 struct nlattr
*tb_rate
[NL80211_BITRATE_ATTR_MAX
+ 1];
42 static struct nla_policy rate_policy
[NL80211_BITRATE_ATTR_MAX
+ 1] = {
43 [NL80211_BITRATE_ATTR_RATE
] = { .type
= NLA_U32
},
44 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE
] = { .type
= NLA_FLAG
},
47 struct nlattr
*nl_band
;
48 struct nlattr
*nl_freq
;
49 struct nlattr
*nl_rate
;
50 struct nlattr
*nl_mode
;
51 struct nlattr
*nl_cmd
;
52 struct nlattr
*nl_if
, *nl_ftype
;
54 int rem_band
, rem_freq
, rem_rate
, rem_mode
, rem_cmd
, rem_ftype
, rem_if
;
57 nla_parse(tb_msg
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
58 genlmsg_attrlen(gnlh
, 0), NULL
);
60 if (!tb_msg
[NL80211_ATTR_WIPHY_BANDS
])
63 if (tb_msg
[NL80211_ATTR_WIPHY_NAME
])
64 printf("Wiphy %s\n", nla_get_string(tb_msg
[NL80211_ATTR_WIPHY_NAME
]));
66 nla_for_each_nested(nl_band
, tb_msg
[NL80211_ATTR_WIPHY_BANDS
], rem_band
) {
67 printf("\tBand %d:\n", bandidx
);
70 nla_parse(tb_band
, NL80211_BAND_ATTR_MAX
, nla_data(nl_band
),
71 nla_len(nl_band
), NULL
);
73 #ifdef NL80211_BAND_ATTR_HT_CAPA
74 if (tb_band
[NL80211_BAND_ATTR_HT_CAPA
]) {
75 __u16 cap
= nla_get_u16(tb_band
[NL80211_BAND_ATTR_HT_CAPA
]);
76 print_ht_capability(cap
);
78 if (tb_band
[NL80211_BAND_ATTR_HT_AMPDU_FACTOR
]) {
79 __u8 exponent
= nla_get_u8(tb_band
[NL80211_BAND_ATTR_HT_AMPDU_FACTOR
]);
80 print_ampdu_length(exponent
);
82 if (tb_band
[NL80211_BAND_ATTR_HT_AMPDU_DENSITY
]) {
83 __u8 spacing
= nla_get_u8(tb_band
[NL80211_BAND_ATTR_HT_AMPDU_DENSITY
]);
84 print_ampdu_spacing(spacing
);
86 if (tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
] &&
87 nla_len(tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
]) == 16)
88 print_ht_mcs(nla_data(tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
]));
91 printf("\t\tFrequencies:\n");
93 nla_for_each_nested(nl_freq
, tb_band
[NL80211_BAND_ATTR_FREQS
], rem_freq
) {
95 nla_parse(tb_freq
, NL80211_FREQUENCY_ATTR_MAX
, nla_data(nl_freq
),
96 nla_len(nl_freq
), freq_policy
);
97 if (!tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
])
99 freq
= nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
]);
100 printf("\t\t\t* %d MHz [%d]", freq
, ieee80211_frequency_to_channel(freq
));
102 if (tb_freq
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] &&
103 !tb_freq
[NL80211_FREQUENCY_ATTR_DISABLED
])
104 printf(" (%.1f dBm)", 0.01 * nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]));
107 if (tb_freq
[NL80211_FREQUENCY_ATTR_DISABLED
]) {
108 print_flag("disabled", &open
);
111 if (tb_freq
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
])
112 print_flag("passive scanning", &open
);
113 if (tb_freq
[NL80211_FREQUENCY_ATTR_NO_IBSS
])
114 print_flag("no IBSS", &open
);
115 if (tb_freq
[NL80211_FREQUENCY_ATTR_RADAR
])
116 print_flag("radar detection", &open
);
123 printf("\t\tBitrates (non-HT):\n");
125 nla_for_each_nested(nl_rate
, tb_band
[NL80211_BAND_ATTR_RATES
], rem_rate
) {
126 nla_parse(tb_rate
, NL80211_BITRATE_ATTR_MAX
, nla_data(nl_rate
),
127 nla_len(nl_rate
), rate_policy
);
128 if (!tb_rate
[NL80211_BITRATE_ATTR_RATE
])
130 printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate
[NL80211_BITRATE_ATTR_RATE
]));
132 if (tb_rate
[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE
])
133 print_flag("short preamble supported", &open
);
140 if (tb_msg
[NL80211_ATTR_MAX_NUM_SCAN_SSIDS
])
141 printf("\tmax # scan SSIDs: %d\n",
142 nla_get_u8(tb_msg
[NL80211_ATTR_MAX_NUM_SCAN_SSIDS
]));
143 if (tb_msg
[NL80211_ATTR_MAX_SCAN_IE_LEN
])
144 printf("\tmax scan IEs length: %d bytes\n",
145 nla_get_u16(tb_msg
[NL80211_ATTR_MAX_SCAN_IE_LEN
]));
147 if (tb_msg
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD
]) {
150 frag
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD
]);
151 if (frag
!= (unsigned int)-1)
152 printf("\tFragmentation threshold: %d\n", frag
);
155 if (tb_msg
[NL80211_ATTR_WIPHY_RTS_THRESHOLD
]) {
158 rts
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_RTS_THRESHOLD
]);
159 if (rts
!= (unsigned int)-1)
160 printf("\tRTS threshold: %d\n", rts
);
163 if (tb_msg
[NL80211_ATTR_WIPHY_COVERAGE_CLASS
]) {
164 unsigned char coverage
;
166 coverage
= nla_get_u8(tb_msg
[NL80211_ATTR_WIPHY_COVERAGE_CLASS
]);
167 /* See handle_distance() for an explanation where the '450' comes from */
168 printf("\tCoverage class: %d (up to %dm)\n", coverage
, 450 * coverage
);
171 if (tb_msg
[NL80211_ATTR_SUPPORTED_IFTYPES
]) {
172 printf("\tSupported interface modes:\n");
173 nla_for_each_nested(nl_mode
, tb_msg
[NL80211_ATTR_SUPPORTED_IFTYPES
], rem_mode
)
174 printf("\t\t * %s\n", iftype_name(nl_mode
->nla_type
));
177 if (tb_msg
[NL80211_ATTR_SUPPORTED_COMMANDS
]) {
178 printf("\tSupported commands:\n");
179 nla_for_each_nested(nl_cmd
, tb_msg
[NL80211_ATTR_SUPPORTED_COMMANDS
], rem_cmd
)
180 printf("\t\t * %s\n", command_name(nla_get_u32(nl_cmd
)));
183 if (tb_msg
[NL80211_ATTR_TX_FRAME_TYPES
]) {
184 printf("\tSupported TX frame types:\n");
185 nla_for_each_nested(nl_if
, tb_msg
[NL80211_ATTR_TX_FRAME_TYPES
], rem_if
) {
186 bool printed
= false;
187 nla_for_each_nested(nl_ftype
, nl_if
, rem_ftype
) {
189 printf("\t\t * %s:", iftype_name(nla_type(nl_if
)));
191 printf(" 0x%.4x", nla_get_u16(nl_ftype
));
198 if (tb_msg
[NL80211_ATTR_RX_FRAME_TYPES
]) {
199 printf("\tSupported RX frame types:\n");
200 nla_for_each_nested(nl_if
, tb_msg
[NL80211_ATTR_RX_FRAME_TYPES
], rem_if
) {
201 bool printed
= false;
202 nla_for_each_nested(nl_ftype
, nl_if
, rem_ftype
) {
204 printf("\t\t * %s:", iftype_name(nla_type(nl_if
)));
206 printf(" 0x%.4x", nla_get_u16(nl_ftype
));
216 static int handle_info(struct nl80211_state
*state
,
219 int argc
, char **argv
)
221 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_phy_handler
, NULL
);
225 __COMMAND(NULL
, info
, "info", NULL
, NL80211_CMD_GET_WIPHY
, 0, 0, CIB_PHY
, handle_info
,
226 "Show capabilities for the specified wireless device.", NULL
);
227 TOPLEVEL(list
, NULL
, NL80211_CMD_GET_WIPHY
, NLM_F_DUMP
, CIB_NONE
, handle_info
,
228 "List all wireless devices and their capabilities.");
229 TOPLEVEL(phy
, NULL
, NL80211_CMD_GET_WIPHY
, NLM_F_DUMP
, CIB_NONE
, handle_info
, NULL
);