151 lines
3.9 KiB
C
151 lines
3.9 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* rfkill implementation for busybox
|
|
*
|
|
* Copyright (C) 2010 Malek Degachi <malek-degachi@laposte.net>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*/
|
|
|
|
//config:config RFKILL
|
|
//config: bool "rfkill (5.3 kb)"
|
|
//config: default n # doesn't build on Ubuntu 9.04
|
|
//config: select PLATFORM_LINUX
|
|
//config: help
|
|
//config: Enable/disable wireless devices.
|
|
//config:
|
|
//config: rfkill list : list all wireless devices
|
|
//config: rfkill list bluetooth : list all bluetooth devices
|
|
//config: rfkill list 1 : list device corresponding to the given index
|
|
//config: rfkill block|unblock wlan : block/unblock all wlan(wifi) devices
|
|
//config:
|
|
|
|
//applet:IF_RFKILL(APPLET(rfkill, BB_DIR_USR_SBIN, BB_SUID_DROP))
|
|
|
|
//kbuild:lib-$(CONFIG_RFKILL) += rfkill.o
|
|
|
|
//usage:#define rfkill_trivial_usage
|
|
//usage: "COMMAND [INDEX|TYPE]"
|
|
//usage:#define rfkill_full_usage "\n\n"
|
|
//usage: "Enable/disable wireless devices\n"
|
|
//usage: "\nCommands:"
|
|
//usage: "\n list [INDEX|TYPE] List current state"
|
|
//usage: "\n block INDEX|TYPE Disable device"
|
|
//usage: "\n unblock INDEX|TYPE Enable device"
|
|
//usage: "\n"
|
|
//usage: "\n TYPE: all, wlan(wifi), bluetooth, uwb(ultrawideband),"
|
|
//usage: "\n wimax, wwan, gps, fm"
|
|
|
|
#include "libbb.h"
|
|
#include <linux/rfkill.h>
|
|
|
|
enum {
|
|
OPT_b = (1 << 0), /* must be = 1 */
|
|
OPT_u = (1 << 1),
|
|
OPT_l = (1 << 2),
|
|
};
|
|
|
|
int rfkill_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int rfkill_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
struct rfkill_event event;
|
|
const char *rf_name;
|
|
int rf_fd;
|
|
int mode;
|
|
int rf_type;
|
|
int rf_idx;
|
|
unsigned rf_opt = 0;
|
|
|
|
argv++;
|
|
/* Must have one or two params */
|
|
if (!argv[0] || (argv[1] && argv[2]))
|
|
bb_show_usage();
|
|
|
|
mode = O_RDWR | O_NONBLOCK;
|
|
rf_name = argv[1];
|
|
if (strcmp(argv[0], "list") == 0) {
|
|
rf_opt |= OPT_l;
|
|
mode = O_RDONLY | O_NONBLOCK;
|
|
} else if (strcmp(argv[0], "block") == 0 && rf_name) {
|
|
rf_opt |= OPT_b;
|
|
} else if (strcmp(argv[0], "unblock") == 0 && rf_name) {
|
|
rf_opt |= OPT_u;
|
|
} else
|
|
bb_show_usage();
|
|
|
|
rf_type = RFKILL_TYPE_ALL;
|
|
rf_idx = -1;
|
|
if (rf_name) {
|
|
static const char rfkill_types[] ALIGN1 = "all\0wlan\0bluetooth\0uwb\0wimax\0wwan\0gps\0fm\0";
|
|
if (strcmp(rf_name, "wifi") == 0)
|
|
rf_name = "wlan";
|
|
if (strcmp(rf_name, "ultrawideband") == 0)
|
|
rf_name = "uwb";
|
|
rf_type = index_in_strings(rfkill_types, rf_name);
|
|
if (rf_type < 0) {
|
|
rf_idx = xatoi_positive(rf_name);
|
|
}
|
|
}
|
|
|
|
rf_fd = device_open("/dev/rfkill", mode);
|
|
if (rf_fd < 0)
|
|
bb_perror_msg_and_die("/dev/rfkill");
|
|
|
|
if (rf_opt & OPT_l) {
|
|
while (full_read(rf_fd, &event, sizeof(event)) == RFKILL_EVENT_SIZE_V1) {
|
|
parser_t *parser;
|
|
char *tokens[2];
|
|
char rf_sysfs[sizeof("/sys/class/rfkill/rfkill%u/uevent") + sizeof(int)*3];
|
|
char *name, *type;
|
|
|
|
if (rf_type && rf_type != event.type && rf_idx < 0) {
|
|
continue;
|
|
}
|
|
|
|
if (rf_idx >= 0 && event.idx != rf_idx) {
|
|
continue;
|
|
}
|
|
|
|
name = NULL;
|
|
type = NULL;
|
|
sprintf(rf_sysfs, "/sys/class/rfkill/rfkill%u/uevent", event.idx);
|
|
parser = config_open2(rf_sysfs, fopen_for_read);
|
|
while (config_read(parser, tokens, 2, 2, "\n=", PARSE_NORMAL)) {
|
|
if (strcmp(tokens[0], "RFKILL_NAME") == 0) {
|
|
name = xstrdup(tokens[1]);
|
|
continue;
|
|
}
|
|
if (strcmp(tokens[0], "RFKILL_TYPE") == 0) {
|
|
type = xstrdup(tokens[1]);
|
|
continue;
|
|
}
|
|
}
|
|
config_close(parser);
|
|
|
|
printf("%u: %s: %s\n", event.idx, name, type);
|
|
printf("\tSoft blocked: %s\n", event.soft ? "yes" : "no");
|
|
printf("\tHard blocked: %s\n", event.hard ? "yes" : "no");
|
|
free(name);
|
|
free(type);
|
|
}
|
|
} else {
|
|
memset(&event, 0, sizeof(event));
|
|
if (rf_type >= 0) {
|
|
event.type = rf_type;
|
|
event.op = RFKILL_OP_CHANGE_ALL;
|
|
}
|
|
|
|
if (rf_idx >= 0) {
|
|
event.idx = rf_idx;
|
|
event.op = RFKILL_OP_CHANGE;
|
|
}
|
|
|
|
/* Note: OPT_b == 1 */
|
|
event.soft = (rf_opt & OPT_b);
|
|
|
|
xwrite(rf_fd, &event, sizeof(event));
|
|
}
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|