1 #include <errno.h>
2 #include <netlink/genl/genl.h>
3 #include <netlink/genl/family.h>
4 #include <netlink/genl/ctrl.h>
5 #include <netlink/msg.h>
6 #include <netlink/attr.h>
7 #include "nl80211.h"
8 #include "iw.h"
9
10 SECTION(ap);
11
handle_start_ap(struct nl80211_state * state,struct nl_msg * msg,int argc,char ** argv,enum id_input id)12 static int handle_start_ap(struct nl80211_state *state,
13 struct nl_msg *msg, int argc, char **argv,
14 enum id_input id)
15 {
16 struct chandef chandef;
17 int res, parsed;
18 char *end;
19 int val, len;
20 char buf[2304];
21
22 if (argc < 6)
23 return 1;
24
25 /* SSID */
26 NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]);
27 argv++;
28 argc--;
29
30 /* chandef */
31 res = parse_freqchan(&chandef, false, argc, argv, &parsed);
32 if (res)
33 return res;
34 argc -= parsed;
35 argv += parsed;
36 res = put_chandef(msg, &chandef);
37 if (res)
38 return res;
39
40 /* beacon interval */
41 val = strtoul(argv[0], &end, 10);
42 if (*end != '\0')
43 return -EINVAL;
44
45 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, val);
46 argv++;
47 argc--;
48
49 /* dtim */
50 val = strtoul(argv[0], &end, 10);
51 if (*end != '\0')
52 return -EINVAL;
53
54 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, val);
55 argv++;
56 argc--;
57
58 if (strcmp(argv[0], "hidden-ssid") == 0) {
59 argc--;
60 argv++;
61 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
62 NL80211_HIDDEN_SSID_ZERO_LEN);
63 } else if (strcmp(argv[0], "zeroed-ssid") == 0) {
64 argc--;
65 argv++;
66 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
67 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
68 }
69
70 /* beacon head must be provided */
71 if (strcmp(argv[0], "head") != 0)
72 return 1;
73 argv++;
74 argc--;
75
76 len = strlen(argv[0]);
77 if (!len || (len % 2))
78 return -EINVAL;
79
80 if (!hex2bin(&argv[0][0], buf))
81 return -EINVAL;
82
83 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, (len / 2), &buf);
84 argv++;
85 argc--;
86
87 if (!argc)
88 return 0;
89
90 /* tail is optional */
91 if (strcmp(argv[0], "tail") == 0) {
92 argv++;
93 argc--;
94
95 if (!argc)
96 return -EINVAL;
97
98 len = strlen(argv[0]);
99 if (!len || (len % 2))
100 return -EINVAL;
101
102 if (!hex2bin(&argv[0][0], buf))
103 return -EINVAL;
104
105 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, (len / 2), &buf);
106 argv++;
107 argc--;
108 }
109
110 if (!argc)
111 return 0;
112
113 /* inactivity time (optional) */
114 if (strcmp(argv[0], "inactivity-time") == 0) {
115 argv++;
116 argc--;
117
118 if (!argc)
119 return -EINVAL;
120 len = strlen(argv[0]);
121 if (!len)
122 return -EINVAL;
123
124 val = strtoul(argv[0], &end, 10);
125 if (*end != '\0')
126 return -EINVAL;
127
128 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, val);
129 argv++;
130 argc--;
131 }
132
133 if (!argc) {
134 return 0;
135 }
136
137 if (strcmp(*argv, "key") != 0 && strcmp(*argv, "keys") != 0)
138 return 1;
139
140 argv++;
141 argc--;
142
143 return parse_keys(msg, &argv, &argc);
144 nla_put_failure:
145 return -ENOSPC;
146 }
147 COMMAND(ap, start, "",
148 NL80211_CMD_NEW_BEACON, 0, CIB_NETDEV, handle_start_ap,
149 "<SSID> <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]"
150 " <beacon interval in TU> <DTIM period> [hidden-ssid|zeroed-ssid] head"
151 " <beacon head in hexadecimal> [tail <beacon tail in hexadecimal>]"
152 " [inactivity-time <inactivity time in seconds>] [key0:abcde d:1:6162636465]\n");
153
handle_stop_ap(struct nl80211_state * state,struct nl_msg * msg,int argc,char ** argv,enum id_input id)154 static int handle_stop_ap(struct nl80211_state *state,
155 struct nl_msg *msg,
156 int argc, char **argv,
157 enum id_input id)
158 {
159 return 0;
160 }
161 COMMAND(ap, stop, "",
162 NL80211_CMD_DEL_BEACON, 0, CIB_NETDEV, handle_stop_ap,
163 "Stop AP functionality\n");
164