diff options
Diffstat (limited to 'miscutils')
| -rw-r--r-- | miscutils/Config.in | 11 | ||||
| -rw-r--r-- | miscutils/Kbuild | 1 | ||||
| -rw-r--r-- | miscutils/rfkill.c | 120 |
3 files changed, 132 insertions, 0 deletions
diff --git a/miscutils/Config.in b/miscutils/Config.in index 0469b6399..7a69dd10f 100644 --- a/miscutils/Config.in +++ b/miscutils/Config.in @@ -545,6 +545,17 @@ config READAHEAD As readahead(2) blocks until each file has been read, it is best to run this applet as a background job. +config RFKILL + bool "rfkill" + default n + help + Enable/disable wireless devices. + + rfkill list : list all wireless devices + rfkill list bluetooth : list all bluetooth devices + rfkill list 1 : list device corresponding to the given index + rfkill block|unblock wlan : block/unblock all wlan(wifi) devices + config RUNLEVEL bool "runlevel" default n diff --git a/miscutils/Kbuild b/miscutils/Kbuild index bbfa93dc7..3c8ce42ba 100644 --- a/miscutils/Kbuild +++ b/miscutils/Kbuild @@ -34,6 +34,7 @@ lib-$(CONFIG_MOUNTPOINT) += mountpoint.o lib-$(CONFIG_MT) += mt.o lib-$(CONFIG_RAIDAUTORUN) += raidautorun.o lib-$(CONFIG_READAHEAD) += readahead.o +lib-$(CONFIG_RFKILL) += rfkill.o lib-$(CONFIG_RUNLEVEL) += runlevel.o lib-$(CONFIG_RX) += rx.o lib-$(CONFIG_SETSID) += setsid.o diff --git a/miscutils/rfkill.c b/miscutils/rfkill.c new file mode 100644 index 000000000..0f5817b76 --- /dev/null +++ b/miscutils/rfkill.c @@ -0,0 +1,120 @@ +/* vi: set sw=4 ts=4: */ +/* +* rfkill implementation for busybox +* +* Copyright (C) 2010 Malek Degachi <malek-degachi@laposte.net> +* +* Licensed under the GPL v2 or later, see the file LICENSE in this tarball. +*/ +#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_u(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; +} |