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79f99b9a | 1 | #include <errno.h> |
2ef1be68 JB |
2 | #include <net/if.h> |
3 | ||
79f99b9a JB |
4 | #include <netlink/genl/genl.h> |
5 | #include <netlink/genl/family.h> | |
6 | #include <netlink/genl/ctrl.h> | |
7 | #include <netlink/msg.h> | |
8 | #include <netlink/attr.h> | |
79f99b9a | 9 | |
f408e01b | 10 | #include "nl80211.h" |
79f99b9a JB |
11 | #include "iw.h" |
12 | ||
13 | static void print_flag(const char *name, int *open) | |
14 | { | |
15 | if (!*open) | |
16 | printf(" ("); | |
17 | else | |
18 | printf(", "); | |
19 | printf(name); | |
20 | *open = 1; | |
21 | } | |
22 | ||
23 | static int print_phy_handler(struct nl_msg *msg, void *arg) | |
24 | { | |
25 | struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; | |
26 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
27 | ||
28 | struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; | |
29 | ||
30 | struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; | |
31 | static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { | |
32 | [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, | |
33 | [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, | |
34 | [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG }, | |
35 | [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG }, | |
36 | [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, | |
37 | }; | |
38 | ||
39 | struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; | |
40 | static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { | |
41 | [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, | |
42 | [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG }, | |
43 | }; | |
44 | ||
45 | struct nlattr *nl_band; | |
46 | struct nlattr *nl_freq; | |
47 | struct nlattr *nl_rate; | |
6367e71a | 48 | struct nlattr *nl_mode; |
79f99b9a | 49 | int bandidx = 1; |
6367e71a | 50 | int rem_band, rem_freq, rem_rate, rem_mode; |
79f99b9a JB |
51 | int open; |
52 | ||
53 | nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
54 | genlmsg_attrlen(gnlh, 0), NULL); | |
55 | ||
56 | if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) | |
57 | return NL_SKIP; | |
58 | ||
d631650b JB |
59 | if (tb_msg[NL80211_ATTR_WIPHY_NAME]) |
60 | printf("Wiphy %s\n", nla_get_string(tb_msg[NL80211_ATTR_WIPHY_NAME])); | |
61 | ||
79f99b9a | 62 | nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) { |
d631650b | 63 | printf("\tBand %d:\n", bandidx); |
79f99b9a JB |
64 | bandidx++; |
65 | ||
66 | nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), | |
67 | nla_len(nl_band), NULL); | |
68 | ||
3dd781cc JB |
69 | #ifdef NL80211_BAND_ATTR_HT_CAPA |
70 | if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) { | |
71 | unsigned short cap = nla_get_u16(tb_band[NL80211_BAND_ATTR_HT_CAPA]); | |
72 | #define PCOM(fmt, args...) do { printf("\t\t\t * " fmt "\n", ##args); } while (0) | |
73 | #define PBCOM(bit, args...) if (cap & (bit)) PCOM(args) | |
74 | printf("\t\tHT capabilities: 0x%.4x\n", cap); | |
75 | PBCOM(0x0001, "LPDC coding"); | |
76 | if (cap & 0x0002) | |
77 | PCOM("20/40 MHz operation"); | |
78 | else | |
79 | PCOM("20 MHz operation"); | |
80 | switch ((cap & 0x000c) >> 2) { | |
81 | case 0: | |
82 | PCOM("static SM PS"); | |
83 | break; | |
84 | case 1: | |
85 | PCOM("dynamic SM PS"); | |
86 | break; | |
87 | case 2: | |
88 | PCOM("reserved SM PS"); | |
89 | break; | |
90 | case 3: | |
91 | PCOM("SM PS disabled"); | |
92 | break; | |
93 | } | |
94 | PBCOM(0x0010, "HT-greenfield"); | |
95 | PBCOM(0x0020, "20 MHz short GI"); | |
96 | PBCOM(0x0040, "40 MHz short GI"); | |
97 | PBCOM(0x0080, "TX STBC"); | |
98 | if (cap & 0x300) | |
99 | PCOM("RX STBC %d streams", (cap & 0x0300) >> 8); | |
100 | PBCOM(0x0400, "HT-delayed block-ack"); | |
101 | PCOM("max A-MSDU len %d", 0xeff + ((cap & 0x0800) << 1)); | |
102 | PBCOM(0x1000, "DSSS/CCK 40 MHz"); | |
103 | PBCOM(0x2000, "PSMP support"); | |
104 | PBCOM(0x4000, "40 MHz intolerant"); | |
105 | PBCOM(0x8000, "L-SIG TXOP protection support"); | |
106 | } | |
107 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) { | |
108 | unsigned char factor = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]); | |
109 | printf("\t\tHT A-MPDU factor: 0x%.4x (%d bytes)\n", factor, (1<<(13+factor))-1); | |
110 | } | |
111 | if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) { | |
112 | unsigned char dens = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]); | |
113 | printf("\t\tHT A-MPDU density: 0x%.4x (", dens); | |
114 | switch (dens) { | |
115 | case 0: | |
116 | printf("no restriction)\n"); | |
117 | break; | |
118 | case 1: | |
119 | printf("1/4 usec)\n"); | |
120 | break; | |
121 | case 2: | |
122 | printf("1/2 usec)\n"); | |
123 | break; | |
124 | default: | |
125 | printf("%d usec)\n", 1<<(dens - 3)); | |
126 | } | |
127 | } | |
128 | if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] && | |
129 | nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]) == 16) { | |
130 | unsigned char *mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); | |
131 | printf("\t\tHT MCS set: %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x\n", | |
132 | mcs[0], mcs[1], mcs[2], mcs[3], mcs[4], mcs[5], mcs[6], mcs[7], | |
133 | mcs[8], mcs[9], mcs[10], mcs[11], mcs[12], mcs[13], mcs[14], mcs[15]); | |
134 | } | |
135 | #endif | |
136 | ||
d631650b | 137 | printf("\t\tFrequencies:\n"); |
79f99b9a JB |
138 | |
139 | nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) { | |
140 | nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq), | |
141 | nla_len(nl_freq), freq_policy); | |
142 | if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) | |
143 | continue; | |
d631650b | 144 | printf("\t\t\t* %d MHz", nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ])); |
79f99b9a JB |
145 | open = 0; |
146 | if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) | |
147 | print_flag("disabled", &open); | |
148 | if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN]) | |
149 | print_flag("passive scanning", &open); | |
150 | if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS]) | |
151 | print_flag("no IBSS", &open); | |
152 | if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) | |
153 | print_flag("radar detection", &open); | |
154 | if (open) | |
155 | printf(")"); | |
156 | printf("\n"); | |
157 | } | |
158 | ||
d631650b | 159 | printf("\t\tBitrates:\n"); |
79f99b9a JB |
160 | |
161 | nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) { | |
162 | nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate), | |
163 | nla_len(nl_rate), rate_policy); | |
164 | if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) | |
165 | continue; | |
d631650b | 166 | printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE])); |
79f99b9a JB |
167 | open = 0; |
168 | if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE]) | |
169 | print_flag("short preamble supported", &open); | |
170 | if (open) | |
171 | printf(")"); | |
172 | printf("\n"); | |
173 | } | |
174 | } | |
175 | ||
6367e71a JB |
176 | if (!tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES]) |
177 | return NL_SKIP; | |
178 | ||
d631650b | 179 | printf("\tSupported interface modes:\n"); |
541ef425 | 180 | nla_for_each_nested(nl_mode, tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES], rem_mode) |
d631650b | 181 | printf("\t\t * %s\n", iftype_name(nl_mode->nla_type)); |
6367e71a | 182 | |
79f99b9a JB |
183 | return NL_SKIP; |
184 | } | |
185 | ||
70391ccf | 186 | static int handle_info(struct nl_cb *cb, |
d631650b JB |
187 | struct nl_msg *msg, |
188 | int argc, char **argv) | |
79f99b9a | 189 | { |
79f99b9a | 190 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_phy_handler, NULL); |
79f99b9a | 191 | |
70391ccf | 192 | return 0; |
79f99b9a | 193 | } |
d631650b JB |
194 | TOPLEVEL(info, NULL, NL80211_CMD_GET_WIPHY, 0, CIB_PHY, handle_info); |
195 | TOPLEVEL(list, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info); |