1 /* vi: set sw=4 ts=4: */
3 * rfkill implementation for busybox
5 * Copyright (C) 2010 Malek Degachi <malek-degachi@laposte.net>
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
10 //config:config RFKILL
11 //config: bool "rfkill"
12 //config: default n # doesn't build on Ubuntu 9.04
13 //config: select PLATFORM_LINUX
15 //config: Enable/disable wireless devices.
17 //config: rfkill list : list all wireless devices
18 //config: rfkill list bluetooth : list all bluetooth devices
19 //config: rfkill list 1 : list device corresponding to the given index
20 //config: rfkill block|unblock wlan : block/unblock all wlan(wifi) devices
23 //applet:IF_RFKILL(APPLET(rfkill, BB_DIR_USR_SBIN, BB_SUID_DROP))
25 //kbuild:lib-$(CONFIG_RFKILL) += rfkill.o
27 //usage:#define rfkill_trivial_usage
28 //usage: "COMMAND [INDEX|TYPE]"
29 //usage:#define rfkill_full_usage "\n\n"
30 //usage: "Enable/disable wireless devices\n"
31 //usage: "\nCommands:"
32 //usage: "\n list [INDEX|TYPE] List current state"
33 //usage: "\n block INDEX|TYPE Disable device"
34 //usage: "\n unblock INDEX|TYPE Enable device"
36 //usage: "\n TYPE: all, wlan(wifi), bluetooth, uwb(ultrawideband),"
37 //usage: "\n wimax, wwan, gps, fm"
40 #include <linux/rfkill.h>
43 OPT_b
= (1 << 0), /* must be = 1 */
48 int rfkill_main(int argc
, char **argv
) MAIN_EXTERNALLY_VISIBLE
;
49 int rfkill_main(int argc UNUSED_PARAM
, char **argv
)
51 struct rfkill_event event
;
60 /* Must have one or two params */
61 if (!argv
[0] || (argv
[1] && argv
[2]))
64 mode
= O_RDWR
| O_NONBLOCK
;
66 if (strcmp(argv
[0], "list") == 0) {
68 mode
= O_RDONLY
| O_NONBLOCK
;
69 } else if (strcmp(argv
[0], "block") == 0 && rf_name
) {
71 } else if (strcmp(argv
[0], "unblock") == 0 && rf_name
) {
76 rf_type
= RFKILL_TYPE_ALL
;
79 static const char rfkill_types
[] ALIGN1
= "all\0wlan\0bluetooth\0uwb\0wimax\0wwan\0gps\0fm\0";
80 if (strcmp(rf_name
, "wifi") == 0)
82 if (strcmp(rf_name
, "ultrawideband") == 0)
84 rf_type
= index_in_strings(rfkill_types
, rf_name
);
86 rf_idx
= xatoi_positive(rf_name
);
90 rf_fd
= device_open("/dev/rfkill", mode
);
92 bb_perror_msg_and_die("/dev/rfkill");
95 while (full_read(rf_fd
, &event
, sizeof(event
)) == RFKILL_EVENT_SIZE_V1
) {
98 char rf_sysfs
[sizeof("/sys/class/rfkill/rfkill%u/uevent") + sizeof(int)*3];
101 if (rf_type
&& rf_type
!= event
.type
&& rf_idx
< 0) {
105 if (rf_idx
>= 0 && event
.idx
!= rf_idx
) {
111 sprintf(rf_sysfs
, "/sys/class/rfkill/rfkill%u/uevent", event
.idx
);
112 parser
= config_open2(rf_sysfs
, fopen_for_read
);
113 while (config_read(parser
, tokens
, 2, 2, "\n=", PARSE_NORMAL
)) {
114 if (strcmp(tokens
[0], "RFKILL_NAME") == 0) {
115 name
= xstrdup(tokens
[1]);
118 if (strcmp(tokens
[0], "RFKILL_TYPE") == 0) {
119 type
= xstrdup(tokens
[1]);
123 config_close(parser
);
125 printf("%u: %s: %s\n", event
.idx
, name
, type
);
126 printf("\tSoft blocked: %s\n", event
.soft
? "yes" : "no");
127 printf("\tHard blocked: %s\n", event
.hard
? "yes" : "no");
132 memset(&event
, 0, sizeof(event
));
134 event
.type
= rf_type
;
135 event
.op
= RFKILL_OP_CHANGE_ALL
;
140 event
.op
= RFKILL_OP_CHANGE
;
143 /* Note: OPT_b == 1 */
144 event
.soft
= (rf_opt
& OPT_b
);
146 xwrite(rf_fd
, &event
, sizeof(event
));