1 files changed, 102 insertions, 0 deletions
diff --git a/toys/net/rfkill.c b/toys/net/rfkill.c
new file mode 100644
index 00000000..36fe320d
--- /dev/null
+++ b/toys/net/rfkill.c
@@ -0,0 +1,102 @@
+/* rfkill.c - Enable/disable wireless devices.
+ *
+ * Copyright 2014 Ranjan Kumar <ranjankumar.bth@gmail.com>
+ * Copyright 2014 Kyungwan Han <asura321@gmail.com>
+ *
+ * No Standard
+
+USE_RFKILL(NEWTOY(rfkill, "<1>2", TOYFLAG_USR|TOYFLAG_SBIN))
+
+config RFKILL
+  bool "rfkill"
+  default y
+  help
+    Usage: rfkill COMMAND [DEVICE]
+
+    Enable/disable wireless devices.
+
+    Commands:
+    list [DEVICE]   List current state
+    block DEVICE    Disable device
+    unblock DEVICE  Enable device
+
+    DEVICE is an index number, or one of:
+    all, wlan(wifi), bluetooth, uwb(ultrawideband), wimax, wwan, gps, fm.
+*/
+
+#define FOR_rfkill
+#include "toys.h"
+#include <linux/rfkill.h>
+
+void rfkill_main(void)
+{
+  struct rfkill_event rfevent;
+  int fd, tvar, idx = -1, tid = RFKILL_TYPE_ALL;
+  char **optargs = toys.optargs;
+
+  // Parse command line options
+  for (tvar = 0; tvar < 3; tvar++)
+    if (!strcmp((char *[]){"list", "block", "unblock"}[tvar], *optargs)) break;
+  if (tvar == 3) error_exit("unknown cmd '%s'", *optargs);
+  if (tvar) {
+    int i;
+    struct arglist {
+      char *name;
+      int idx;
+    } rftypes[] = {{"all", RFKILL_TYPE_ALL}, {"wifi", RFKILL_TYPE_WLAN},
+      {"wlan", RFKILL_TYPE_WLAN}, {"bluetooth", RFKILL_TYPE_BLUETOOTH},
+      {"uwb", RFKILL_TYPE_UWB}, {"ultrawideband", RFKILL_TYPE_UWB},
+      {"wimax", RFKILL_TYPE_WIMAX}, {"wwan", RFKILL_TYPE_WWAN},
+      {"gps", RFKILL_TYPE_GPS}, {"fm", 7}}; // RFKILL_TYPE_FM = 7
+
+    if (!*++optargs) error_exit("'%s' needs IDENTIFIER", optargs[-1]);
+    for (i = 0; i < ARRAY_LEN(rftypes); i++)
+      if (!strcmp(rftypes[i].name, *optargs)) break;
+    if (i == ARRAY_LEN(rftypes)) idx = atolx_range(*optargs, 0, INT_MAX);
+    else tid = rftypes[i].idx;
+  }
+
+  // Perform requested action
+  fd = xopen("/dev/rfkill", (tvar ? O_RDWR : O_RDONLY)|O_NONBLOCK);
+  if (tvar) {
+    // block/unblock
+    memset(&rfevent, 0, sizeof(rfevent));
+    rfevent.soft = tvar == 1;
+    if (idx >= 0) {
+      rfevent.idx = idx;
+      rfevent.op = RFKILL_OP_CHANGE;
+    } else {
+      rfevent.type = tid;
+      rfevent.op = RFKILL_OP_CHANGE_ALL;
+    }
+    xwrite(fd, &rfevent, sizeof(rfevent));
+  } else {
+    // show list.
+    while (sizeof(rfevent) == readall(fd, &rfevent, sizeof(rfevent))) {
+      char *line, *name = 0, *type = 0;
+
+      // filter list items
+      if ((tid > 0 && tid != rfevent.type) || (idx != -1 && idx != rfevent.idx))
+        continue;
+
+      sprintf(toybuf, "/sys/class/rfkill/rfkill%u/uevent", rfevent.idx);
+      tvar = xopen(toybuf, O_RDONLY);
+      while ((line = get_line(tvar))) {
+        char *s = line;
+
+        if (strstart(&s, "RFKILL_NAME=")) name = xstrdup(s);
+        else if (strstart(&s, "RFKILL_TYPE=")) type = xstrdup(s);
+
+        free(line);
+      }
+      xclose(tvar);
+
+      xprintf("%u: %s: %s\n", rfevent.idx, name, type);
+      xprintf("\tSoft blocked: %s\n", rfevent.soft ? "yes" : "no");
+      xprintf("\tHard blocked: %s\n", rfevent.hard ? "yes" : "no");
+      free(name);
+      free(type);
+    }
+  }
+  xclose(fd);
+}