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106 lines
3.0 KiB
106 lines
3.0 KiB
/* rfkill.c - Enable/disable wireless devices.
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*
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* Copyright 2014 Ranjan Kumar <ranjankumar.bth@gmail.com>
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* Copyright 2014 Kyungwan Han <asura321@gmail.com>
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*
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* No Standard
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USE_RFKILL(NEWTOY(rfkill, "<1>2", TOYFLAG_USR|TOYFLAG_SBIN))
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config RFKILL
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bool "rfkill"
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default y
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help
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usage: rfkill COMMAND [DEVICE]
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Enable/disable wireless devices.
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Commands:
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list [DEVICE] List current state
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block DEVICE Disable device
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unblock DEVICE Enable device
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DEVICE is an index number, or one of:
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all, wlan(wifi), bluetooth, uwb(ultrawideband), wimax, wwan, gps, fm.
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*/
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#define FOR_rfkill
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#include "toys.h"
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#include <linux/rfkill.h>
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void rfkill_main(void)
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{
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struct rfkill_event rfevent;
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int fd, tvar, idx = -1, tid = RFKILL_TYPE_ALL;
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char **optargs = toys.optargs;
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// Parse command line options
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for (tvar = 0; tvar < 3; tvar++)
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if (!strcmp((char *[]){"list", "block", "unblock"}[tvar], *optargs)) break;
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if (tvar == 3) error_exit("unknown cmd '%s'", *optargs);
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if (tvar) {
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int i;
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struct arglist {
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char *name;
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int idx;
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} rftypes[] = {{"all", RFKILL_TYPE_ALL}, {"wifi", RFKILL_TYPE_WLAN},
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{"wlan", RFKILL_TYPE_WLAN}, {"bluetooth", RFKILL_TYPE_BLUETOOTH},
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{"uwb", RFKILL_TYPE_UWB}, {"ultrawideband", RFKILL_TYPE_UWB},
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{"wimax", RFKILL_TYPE_WIMAX}, {"wwan", RFKILL_TYPE_WWAN},
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{"gps", RFKILL_TYPE_GPS}, {"fm", 7}}; // RFKILL_TYPE_FM = 7
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if (!*++optargs) error_exit("'%s' needs IDENTIFIER", optargs[-1]);
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for (i = 0; i < ARRAY_LEN(rftypes); i++)
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if (!strcmp(rftypes[i].name, *optargs)) break;
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if (i == ARRAY_LEN(rftypes)) idx = atolx_range(*optargs, 0, INT_MAX);
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else tid = rftypes[i].idx;
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}
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// Perform requested action
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fd = xopen("/dev/rfkill", (tvar ? O_RDWR : O_RDONLY)|O_NONBLOCK);
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if (tvar) {
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// block/unblock
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memset(&rfevent, 0, sizeof(rfevent));
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rfevent.soft = tvar == 1;
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if (idx >= 0) {
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rfevent.idx = idx;
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rfevent.op = RFKILL_OP_CHANGE;
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} else {
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rfevent.type = tid;
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rfevent.op = RFKILL_OP_CHANGE_ALL;
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}
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xwrite(fd, &rfevent, sizeof(rfevent));
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} else {
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// show list.
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while (sizeof(rfevent) == readall(fd, &rfevent, sizeof(rfevent))) {
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char *line = 0, *name = 0, *type = 0;
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FILE *fp;
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size_t l = 0;
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ssize_t len;
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// filter list items
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if ((tid > 0 && tid != rfevent.type) || (idx != -1 && idx != rfevent.idx))
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continue;
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sprintf(toybuf, "/sys/class/rfkill/rfkill%u/uevent", rfevent.idx);
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fp = xfopen(toybuf, "r");
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while ((len = getline(&line, &l, fp)) > 0) {
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char *s = line;
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line[len-1] = 0;
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if (strstart(&s, "RFKILL_NAME=")) name = xstrdup(s);
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else if (strstart(&s, "RFKILL_TYPE=")) type = xstrdup(s);
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}
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free(line);
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fclose(fp);
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xprintf("%u: %s: %s\n", rfevent.idx, name, type);
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xprintf("\tSoft blocked: %s\n", rfevent.soft ? "yes" : "no");
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xprintf("\tHard blocked: %s\n", rfevent.hard ? "yes" : "no");
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free(name);
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free(type);
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}
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}
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xclose(fd);
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}
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