Merge pull request #30284 from YHNdnzj/fstab-wantedby-defaultdeps

[thirdparty/systemd.git] / src / shared / blockdev-util.h

diff --git a/src/shared/blockdev-util.h b/src/shared/blockdev-util.h
index 802d79394ffbbf1cf622a2012e55c1b146c3acab..28aede289a0590f44cb408174153f8450a80284e 100644 (file)
--- a/src/shared/blockdev-util.h
+++ b/src/shared/blockdev-util.h
@@ -14,7 +14,20 @@
 #define xsprintf_sys_block_path(buf, suffix, devno)                     \
         xsprintf(buf, "/sys/dev/block/%u:%u%s", major(devno), minor(devno), strempty(suffix))
 
+typedef enum BlockDeviceLookupFlag {
+        BLOCK_DEVICE_LOOKUP_WHOLE_DISK  = 1 << 0, /* whole block device, e.g. sda, nvme0n1, or loop0. */
+        BLOCK_DEVICE_LOOKUP_BACKING     = 1 << 1, /* fd may be regular file or directory on file system, in
+                                                   * which case backing block device is determined. */
+        BLOCK_DEVICE_LOOKUP_ORIGINATING = 1 << 2, /* Try to find the underlying layer device for stacked
+                                                   * block device, e.g. LUKS-style DM. */
+} BlockDeviceLookupFlag;
+
+int block_device_new_from_fd(int fd, BlockDeviceLookupFlag flag, sd_device **ret);
+int block_device_new_from_path(const char *path, BlockDeviceLookupFlag flag, sd_device **ret);
+
+int block_device_is_whole_disk(sd_device *dev);
 int block_device_get_whole_disk(sd_device *dev, sd_device **ret);
+int block_device_get_originating(sd_device *dev, sd_device **ret);
 
 int block_get_whole_disk(dev_t d, dev_t *ret);
 int block_get_originating(dev_t d, dev_t *ret);
@@ -42,3 +55,8 @@ int partition_enumerator_new(sd_device *dev, sd_device_enumerator **ret);
 int block_device_remove_all_partitions(sd_device *dev, int fd);
 int block_device_has_partitions(sd_device *dev);
 int blockdev_reread_partition_table(sd_device *dev);
+
+int blockdev_get_sector_size(int fd, uint32_t *ret);
+int blockdev_get_device_size(int fd, uint64_t *ret);
+
+int blockdev_get_root(int level, dev_t *ret);