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
join_ibss(struct nl80211_state * state,struct nl_msg * msg,int argc,char ** argv,enum id_input id)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 err = 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
leave_ibss(struct nl80211_state * state,struct nl_msg * msg,int argc,char ** argv,enum id_input id)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.");
144