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iw: Add antenna configuration commands
[thirdparty/iw.git] / info.c
CommitLineData
21878f36 1#include <stdbool.h>
79f99b9a 2#include <errno.h>
2ef1be68
JB
3#include <net/if.h>
4
79f99b9a
JB
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>
79f99b9a 10
f408e01b 11#include "nl80211.h"
79f99b9a
JB
12#include "iw.h"
13
14static void print_flag(const char *name, int *open)
15{
16 if (!*open)
17 printf(" (");
18 else
19 printf(", ");
69283122 20 printf("%s", name);
79f99b9a
JB
21 *open = 1;
22}
23
24static int print_phy_handler(struct nl_msg *msg, void *arg)
25{
26 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
27 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
28
29 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
30
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 },
c1081c20 38 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
79f99b9a
JB
39 };
40
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 },
45 };
46
47 struct nlattr *nl_band;
48 struct nlattr *nl_freq;
49 struct nlattr *nl_rate;
6367e71a 50 struct nlattr *nl_mode;
9990c1e9 51 struct nlattr *nl_cmd;
9a4a14bd 52 struct nlattr *nl_if, *nl_ftype;
79f99b9a 53 int bandidx = 1;
9a4a14bd 54 int rem_band, rem_freq, rem_rate, rem_mode, rem_cmd, rem_ftype, rem_if;
79f99b9a
JB
55 int open;
56
57 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
58 genlmsg_attrlen(gnlh, 0), NULL);
59
60 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
61 return NL_SKIP;
62
d631650b
JB
63 if (tb_msg[NL80211_ATTR_WIPHY_NAME])
64 printf("Wiphy %s\n", nla_get_string(tb_msg[NL80211_ATTR_WIPHY_NAME]));
65
79f99b9a 66 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
d631650b 67 printf("\tBand %d:\n", bandidx);
79f99b9a
JB
68 bandidx++;
69
70 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
71 nla_len(nl_band), NULL);
72
3dd781cc
JB
73#ifdef NL80211_BAND_ATTR_HT_CAPA
74 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
357c1a5d
LR
75 __u16 cap = nla_get_u16(tb_band[NL80211_BAND_ATTR_HT_CAPA]);
76 print_ht_capability(cap);
3dd781cc
JB
77 }
78 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
0950993f
LR
79 __u8 exponent = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]);
80 print_ampdu_length(exponent);
3dd781cc
JB
81 }
82 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
0950993f
LR
83 __u8 spacing = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]);
84 print_ampdu_spacing(spacing);
3dd781cc
JB
85 }
86 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
7ddfb679
JB
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]));
3dd781cc
JB
89#endif
90
d631650b 91 printf("\t\tFrequencies:\n");
79f99b9a
JB
92
93 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
379f8397 94 uint32_t freq;
79f99b9a
JB
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])
98 continue;
379f8397
JB
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));
c1081c20 101
d102c0b6
JB
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]));
c1081c20 105
79f99b9a 106 open = 0;
ee9cd987 107 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) {
79f99b9a 108 print_flag("disabled", &open);
ee9cd987
JB
109 goto next;
110 }
79f99b9a
JB
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);
ee9cd987 117 next:
79f99b9a
JB
118 if (open)
119 printf(")");
120 printf("\n");
121 }
122
75dddccc 123 printf("\t\tBitrates (non-HT):\n");
79f99b9a
JB
124
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])
129 continue;
d631650b 130 printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]));
79f99b9a
JB
131 open = 0;
132 if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
133 print_flag("short preamble supported", &open);
134 if (open)
135 printf(")");
136 printf("\n");
137 }
138 }
139
41be37f2
JB
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]));
f9c112b6
JB
143 if (tb_msg[NL80211_ATTR_MAX_SCAN_IE_LEN])
144 printf("\tmax scan IEs length: %d bytes\n",
8eaa9ee5 145 nla_get_u16(tb_msg[NL80211_ATTR_MAX_SCAN_IE_LEN]));
41be37f2 146
625aa4ae
JB
147 if (tb_msg[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
148 unsigned int frag;
149
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);
153 }
154
155 if (tb_msg[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
156 unsigned int rts;
157
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);
161 }
162
b2f92dd0
LT
163 if (tb_msg[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
164 unsigned char coverage;
165
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);
169 }
170
024630b2
BR
171 if (tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
172 tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
173 printf("\tAntenna: TX %#x RX %#x\n",
174 nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_TX]),
175 nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_ANTENNA_RX]));
176 }
177
9a4a14bd
JB
178 if (tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES]) {
179 printf("\tSupported interface modes:\n");
180 nla_for_each_nested(nl_mode, tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES], rem_mode)
181 printf("\t\t * %s\n", iftype_name(nl_mode->nla_type));
182 }
6367e71a 183
9a4a14bd
JB
184 if (tb_msg[NL80211_ATTR_SUPPORTED_COMMANDS]) {
185 printf("\tSupported commands:\n");
186 nla_for_each_nested(nl_cmd, tb_msg[NL80211_ATTR_SUPPORTED_COMMANDS], rem_cmd)
187 printf("\t\t * %s\n", command_name(nla_get_u32(nl_cmd)));
188 }
6367e71a 189
9a4a14bd
JB
190 if (tb_msg[NL80211_ATTR_TX_FRAME_TYPES]) {
191 printf("\tSupported TX frame types:\n");
192 nla_for_each_nested(nl_if, tb_msg[NL80211_ATTR_TX_FRAME_TYPES], rem_if) {
193 bool printed = false;
194 nla_for_each_nested(nl_ftype, nl_if, rem_ftype) {
195 if (!printed)
196 printf("\t\t * %s:", iftype_name(nla_type(nl_if)));
197 printed = true;
198 printf(" 0x%.4x", nla_get_u16(nl_ftype));
199 }
200 if (printed)
201 printf("\n");
202 }
203 }
9990c1e9 204
9a4a14bd
JB
205 if (tb_msg[NL80211_ATTR_RX_FRAME_TYPES]) {
206 printf("\tSupported RX frame types:\n");
207 nla_for_each_nested(nl_if, tb_msg[NL80211_ATTR_RX_FRAME_TYPES], rem_if) {
208 bool printed = false;
209 nla_for_each_nested(nl_ftype, nl_if, rem_ftype) {
210 if (!printed)
211 printf("\t\t * %s:", iftype_name(nla_type(nl_if)));
212 printed = true;
213 printf(" 0x%.4x", nla_get_u16(nl_ftype));
214 }
215 if (printed)
216 printf("\n");
217 }
218 }
9990c1e9 219
79f99b9a
JB
220 return NL_SKIP;
221}
222
7c37a24d
JB
223static int handle_info(struct nl80211_state *state,
224 struct nl_cb *cb,
d631650b
JB
225 struct nl_msg *msg,
226 int argc, char **argv)
79f99b9a 227{
79f99b9a 228 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_phy_handler, NULL);
79f99b9a 229
70391ccf 230 return 0;
79f99b9a 231}
4698bfc2 232__COMMAND(NULL, info, "info", NULL, NL80211_CMD_GET_WIPHY, 0, 0, CIB_PHY, handle_info,
ea35fc0b
JB
233 "Show capabilities for the specified wireless device.");
234TOPLEVEL(list, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info,
235 "List all wireless devices and their capabilities.");
01ae06f9 236TOPLEVEL(phy, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info, NULL);