feat: add by-label disk support

Signed-off-by: sisungo <[email protected]>

libcompat/udev/src/lib.rs

@@ -181,6 +181,59 @@ impl Drop for UdevDevice {
     }
 }
 
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_new_from_syspath(
+    _udev: *mut Udev,
+    _syspath: *const libc::c_char,
+) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_new_from_devnum(
+    _udev: *mut Udev,
+    _type: libc::c_char,
+    _devnum: libc::dev_t,
+) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_new_from_subsystem_sysname(
+    _udev: *mut Udev,
+    _subsystem: *const libc::c_char,
+    _sysname: *const libc::c_char,
+) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_new_from_device_id(
+    _udev: *mut Udev,
+    _id: *const libc::c_char,
+) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_new_from_environment(_udev: *mut Udev) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_get_parent(_dev: *mut UdevDevice) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn udev_device_get_parent_with_subsystem_devtype(
+    _dev: *mut UdevDevice,
+    _subsystem: *const libc::c_char,
+    _devtype: *const libc::c_char,
+) -> *mut UdevDevice {
+    std::ptr::null_mut()
+}
+
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn udev_device_ref(dev: *mut UdevDevice) -> *mut UdevDevice {
     unsafe {

misc/rules/0050-blockdev.ron

@@ -15,6 +15,21 @@
         when: Match("FSUUID", ""),
         do: [Unset("FSUUID")],
     ),
+    (
+        when: All([
+            Match("ACTION", "add"),
+            Match("SUBSYSTEM", "block"),
+            Match("DEVNODE", ".*"),
+        ]),
+        do: [
+            UseProvider("FSLABEL", f("blkid -o value -s LABEL {DEVNODE}")),
+        ],
+        on_error: Continue,
+    ),
+    (
+        when: Match("FSLABEL", ""),
+        do: [Unset("FSLABEL")],
+    ),
 
     // Create link aliases for block devices
     (
@@ -42,6 +57,14 @@
         ]),
         do: [Add("SYMLINKS", f("{DEVROOT}/disk/by-uuid/{FSUUID}"))],
     ),
+    (
+        when: All([
+            Match("ACTION", "add"),
+            Match("SUBSYSTEM", "block"),
+            Match("FSLABEL", ".+"),
+        ]),
+        do: [Add("SYMLINKS", f("{DEVROOT}/disk/by-label/{FSLABEL}"))],
+    ),
     (
         when: All([
             Match("ACTION", "add"),