int main(int argc, char *argv[]) {
_cleanup_udev_unref_ struct udev *udev = NULL;
_cleanup_udev_device_unref_ struct udev_device *device = NULL;
- _cleanup_free_ char *saved = NULL, *ss = NULL, *escaped_name = NULL;
- const char *sysname, *name;
+ _cleanup_free_ char *saved = NULL, *escaped_type = NULL, *escaped_path_id = NULL;
+ const char *name, *type, *path_id;
int r;
if (argc != 3) {
r = mkdir_p("/var/lib/systemd/rfkill", 0755);
if (r < 0) {
- log_error("Failed to create rfkill directory: %s", strerror(-r));
+ log_error_errno(r, "Failed to create rfkill directory: %m");
return EXIT_FAILURE;
}
return EXIT_FAILURE;
}
- sysname = strchr(argv[2], ':');
- if (!sysname) {
- log_error("Requires pair of subsystem and sysname for specifying rfkill device.");
- return EXIT_FAILURE;
+ device = udev_device_new_from_subsystem_sysname(udev, "rfkill", argv[2]);
+ if (!device) {
+ log_debug_errno(errno, "Failed to get rfkill device '%s', ignoring: %m", argv[2]);
+ return EXIT_SUCCESS;
}
- ss = strndup(argv[2], sysname - argv[2]);
- if (!ss) {
- log_oom();
- return EXIT_FAILURE;
+ name = udev_device_get_sysattr_value(device, "name");
+ if (!name) {
+ log_error("rfkill device has no name? Ignoring device.");
+ return EXIT_SUCCESS;
}
- sysname++;
+ log_debug("Operating on rfkill device '%s'.", name);
- if (!streq(ss, "rfkill")) {
- log_error("Not a rfkill device: '%s:%s'", ss, sysname);
- return EXIT_FAILURE;
+ type = udev_device_get_sysattr_value(device, "type");
+ if (!type) {
+ log_error("rfkill device has no type? Ignoring device.");
+ return EXIT_SUCCESS;
}
- errno = 0;
- device = udev_device_new_from_subsystem_sysname(udev, ss, sysname);
- if (!device) {
- if (errno != 0)
- log_error("Failed to get rfkill device '%s:%s': %m", ss, sysname);
- else
- log_oom();
-
+ escaped_type = cescape(type);
+ if (!escaped_type) {
+ log_oom();
return EXIT_FAILURE;
}
- name = udev_device_get_sysattr_value(device, "name");
- if (!name) {
- log_error("rfkill device has no name?");
- return EXIT_FAILURE;
- }
+ path_id = udev_device_get_property_value(device, "ID_PATH");
+ if (path_id) {
+ escaped_path_id = cescape(path_id);
+ if (!escaped_path_id) {
+ log_oom();
+ return EXIT_FAILURE;
+ }
- escaped_name = cescape(name);
- if (!escaped_name) {
- log_oom();
- return EXIT_FAILURE;
- }
+ saved = strjoin("/var/lib/systemd/rfkill/", escaped_path_id, ":", escaped_type, NULL);
+ } else
+ saved = strjoin("/var/lib/systemd/rfkill/", escaped_type, NULL);
- saved = strjoin("/var/lib/systemd/rfkill/", escaped_name, NULL);
if (!saved) {
log_oom();
return EXIT_FAILURE;
if (streq(argv[1], "load")) {
_cleanup_free_ char *value = NULL;
+ if (!shall_restore_state())
+ return EXIT_SUCCESS;
+
r = read_one_line_file(saved, &value);
+ if (r == -ENOENT)
+ return EXIT_SUCCESS;
if (r < 0) {
-
- if (r == -ENOENT)
- return EXIT_SUCCESS;
-
- log_error("Failed to read %s: %s", saved, strerror(-r));
+ log_error_errno(r, "Failed to read %s: %m", saved);
return EXIT_FAILURE;
}
r = udev_device_set_sysattr_value(device, "soft", value);
if (r < 0) {
- log_error("Failed to write system attribute: %s", strerror(-r));
- return EXIT_FAILURE;
+ log_debug_errno(r, "Failed to write 'soft' attribute on rfkill device, ignoring: %m");
+ return EXIT_SUCCESS;
}
} else if (streq(argv[1], "save")) {
value = udev_device_get_sysattr_value(device, "soft");
if (!value) {
- log_error("Failed to read system attribute: %s", strerror(-r));
- return EXIT_FAILURE;
+ log_debug_errno(r, "Failed to read system attribute, ignoring device: %m");
+ return EXIT_SUCCESS;
}
r = write_string_file(saved, value);
if (r < 0) {
- log_error("Failed to write %s: %s", saved, strerror(-r));
+ log_error_errno(r, "Failed to write %s: %m", saved);
return EXIT_FAILURE;
}