| /* 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 (4.4 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_simple_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; |
| } |