#include <sys/epoll.h>
#include <libudev.h>
-#include "strv.h"
#include "log.h"
#include "unit-name.h"
#include "dbus-device.h"
-#include "def.h"
#include "path-util.h"
#include "udev-util.h"
#include "unit.h"
return 0;
}
+static bool device_supported(Manager *m) {
+ static int read_only = -1;
+ assert(m);
+
+ /* If /sys is read-only we don't support device units, and any
+ * attempts to start one should fail immediately. */
+
+ if (read_only < 0)
+ read_only = path_is_read_only_fs("/sys");
+
+ return read_only <= 0;
+}
+
static const char* const device_state_table[_DEVICE_STATE_MAX] = {
[DEVICE_DEAD] = "dead",
[DEVICE_PLUGGED] = "plugged"
.enumerate = device_enumerate,
.shutdown = device_shutdown,
+ .supported = device_supported,
.status_message_formats = {
.starting_stopping = {