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1 | #include <errno.h> | |
2 | #include <string.h> | |
3 | #include <strings.h> | |
4 | ||
5 | #include "nl80211.h" | |
6 | #include "iw.h" | |
7 | ||
8 | SECTION(ibss); | |
9 | ||
10 | static int join_ibss(struct nl80211_state *state, | |
11 | struct nl_msg *msg, | |
12 | int argc, char **argv, | |
13 | enum id_input id) | |
14 | { | |
15 | char *end; | |
16 | struct chandef chandef; | |
17 | unsigned char abssid[6]; | |
18 | unsigned char rates[NL80211_MAX_SUPP_RATES]; | |
19 | int n_rates = 0; | |
20 | char *value = NULL, *sptr = NULL; | |
21 | float rate; | |
22 | int bintval; | |
23 | int parsed, err; | |
24 | ||
25 | if (argc < 2) | |
26 | return 1; | |
27 | ||
28 | /* SSID */ | |
29 | NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]); | |
30 | argv++; | |
31 | argc--; | |
32 | ||
33 | err = parse_freqchan(&chandef, false, argc, argv, &parsed); | |
34 | if (err) | |
35 | return err; | |
36 | ||
37 | argv += parsed; | |
38 | argc -= parsed; | |
39 | ||
40 | put_chandef(msg, &chandef); | |
41 | if (err) | |
42 | return err; | |
43 | ||
44 | if (argc && strcmp(argv[0], "fixed-freq") == 0) { | |
45 | NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED); | |
46 | argv++; | |
47 | argc--; | |
48 | } | |
49 | ||
50 | if (argc) { | |
51 | if (mac_addr_a2n(abssid, argv[0]) == 0) { | |
52 | NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid); | |
53 | argv++; | |
54 | argc--; | |
55 | } | |
56 | } | |
57 | ||
58 | if (argc > 1 && strcmp(argv[0], "beacon-interval") == 0) { | |
59 | argv++; | |
60 | argc--; | |
61 | bintval = strtoul(argv[0], &end, 10); | |
62 | if (*end != '\0') | |
63 | return 1; | |
64 | NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, bintval); | |
65 | argv++; | |
66 | argc--; | |
67 | } | |
68 | ||
69 | /* basic rates */ | |
70 | if (argc > 1 && strcmp(argv[0], "basic-rates") == 0) { | |
71 | argv++; | |
72 | argc--; | |
73 | ||
74 | value = strtok_r(argv[0], ",", &sptr); | |
75 | ||
76 | while (value && n_rates < NL80211_MAX_SUPP_RATES) { | |
77 | rate = strtod(value, &end); | |
78 | rates[n_rates] = rate * 2; | |
79 | ||
80 | /* filter out suspicious values */ | |
81 | if (*end != '\0' || !rates[n_rates] || | |
82 | rate*2 != rates[n_rates]) | |
83 | return 1; | |
84 | ||
85 | n_rates++; | |
86 | value = strtok_r(NULL, ",", &sptr); | |
87 | } | |
88 | ||
89 | NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, n_rates, rates); | |
90 | ||
91 | argv++; | |
92 | argc--; | |
93 | } | |
94 | ||
95 | /* multicast rate */ | |
96 | if (argc > 1 && strcmp(argv[0], "mcast-rate") == 0) { | |
97 | argv++; | |
98 | argc--; | |
99 | ||
100 | rate = strtod(argv[0], &end); | |
101 | if (*end != '\0') | |
102 | return 1; | |
103 | ||
104 | NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10)); | |
105 | argv++; | |
106 | argc--; | |
107 | } | |
108 | ||
109 | if (!argc) | |
110 | return 0; | |
111 | ||
112 | if (strcmp(*argv, "key") != 0 && strcmp(*argv, "keys") != 0) | |
113 | return 1; | |
114 | ||
115 | argv++; | |
116 | argc--; | |
117 | ||
118 | return parse_keys(msg, argv, argc); | |
119 | nla_put_failure: | |
120 | return -ENOSPC; | |
121 | } | |
122 | ||
123 | static int leave_ibss(struct nl80211_state *state, | |
124 | struct nl_msg *msg, | |
125 | int argc, char **argv, | |
126 | enum id_input id) | |
127 | { | |
128 | return 0; | |
129 | } | |
130 | COMMAND(ibss, leave, NULL, | |
131 | NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss, | |
132 | "Leave the current IBSS cell."); | |
133 | COMMAND(ibss, join, | |
134 | "<SSID> <freq in MHz> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]" | |
135 | " [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] " | |
136 | "[key d:0:abcde]", | |
137 | NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss, | |
138 | "Join the IBSS cell with the given SSID, if it doesn't exist create\n" | |
139 | "it on the given frequency. When fixed frequency is requested, don't\n" | |
140 | "join/create a cell on a different frequency. When a fixed BSSID is\n" | |
141 | "requested use that BSSID and do not adopt another cell's BSSID even\n" | |
142 | "if it has higher TSF and the same SSID. If an IBSS is created, create\n" | |
143 | "it with the specified basic-rates, multicast-rate and beacon-interval."); |