Line data    Source code

       1             : /* SPDX-License-Identifier: LGPL-2.1+ */
       2             : #pragma once
       3             : 
       4             : #include <stdbool.h>
       5             : #include <stdint.h>
       6             : #include <sys/types.h>
       7             : 
       8             : #include "sd-id128.h"
       9             : 
      10             : #include "copy.h"
      11             : #include "time-util.h"
      12             : 
      13             : typedef struct BtrfsSubvolInfo {
      14             :         uint64_t subvol_id;
      15             :         usec_t otime;
      16             : 
      17             :         sd_id128_t uuid;
      18             :         sd_id128_t parent_uuid;
      19             : 
      20             :         bool read_only;
      21             : } BtrfsSubvolInfo;
      22             : 
      23             : typedef struct BtrfsQuotaInfo {
      24             :         uint64_t referenced;
      25             :         uint64_t exclusive;
      26             :         uint64_t referenced_max;
      27             :         uint64_t exclusive_max;
      28             : } BtrfsQuotaInfo;
      29             : 
      30             : typedef enum BtrfsSnapshotFlags {
      31             :         BTRFS_SNAPSHOT_FALLBACK_COPY      = 1 << 0, /* If the source isn't a subvolume, reflink everything */
      32             :         BTRFS_SNAPSHOT_READ_ONLY          = 1 << 1,
      33             :         BTRFS_SNAPSHOT_RECURSIVE          = 1 << 2,
      34             :         BTRFS_SNAPSHOT_QUOTA              = 1 << 3,
      35             :         BTRFS_SNAPSHOT_FALLBACK_DIRECTORY = 1 << 4, /* If the destination doesn't support subvolumes, reflink/copy instead */
      36             :         BTRFS_SNAPSHOT_FALLBACK_IMMUTABLE = 1 << 5, /* When we can't create a subvolume, use the FS_IMMUTABLE attribute for indicating read-only */
      37             :         BTRFS_SNAPSHOT_SIGINT             = 1 << 6, /* Check for SIGINT regularly, and return EINTR if seen */
      38             : } BtrfsSnapshotFlags;
      39             : 
      40             : typedef enum BtrfsRemoveFlags {
      41             :         BTRFS_REMOVE_RECURSIVE = 1 << 0,
      42             :         BTRFS_REMOVE_QUOTA     = 1 << 1,
      43             : } BtrfsRemoveFlags;
      44             : 
      45             : int btrfs_is_filesystem(int fd);
      46             : 
      47             : int btrfs_is_subvol_fd(int fd);
      48             : int btrfs_is_subvol(const char *path);
      49             : 
      50             : int btrfs_reflink(int infd, int outfd);
      51             : int btrfs_clone_range(int infd, uint64_t in_offset, int ofd, uint64_t out_offset, uint64_t sz);
      52             : 
      53             : int btrfs_get_block_device_fd(int fd, dev_t *dev);
      54             : int btrfs_get_block_device(const char *path, dev_t *dev);
      55             : 
      56             : int btrfs_defrag_fd(int fd);
      57             : int btrfs_defrag(const char *p);
      58             : 
      59             : int btrfs_quota_enable_fd(int fd, bool b);
      60             : int btrfs_quota_enable(const char *path, bool b);
      61             : 
      62             : int btrfs_quota_scan_start(int fd);
      63             : int btrfs_quota_scan_wait(int fd);
      64             : int btrfs_quota_scan_ongoing(int fd);
      65             : 
      66             : int btrfs_subvol_make(const char *path);
      67             : int btrfs_subvol_make_fd(int fd, const char *subvolume);
      68             : 
      69             : int btrfs_subvol_snapshot_fd_full(int old_fd, const char *new_path, BtrfsSnapshotFlags flags, copy_progress_path_t progress_path, copy_progress_bytes_t progress_bytes, void *userdata);
      70           0 : static inline int btrfs_subvol_snapshot_fd(int old_fd, const char *new_path, BtrfsSnapshotFlags flags) {
      71           0 :         return btrfs_subvol_snapshot_fd_full(old_fd, new_path, flags, NULL, NULL, NULL);
      72             : }
      73             : 
      74             : int btrfs_subvol_snapshot_full(const char *old_path, const char *new_path, BtrfsSnapshotFlags flags, copy_progress_path_t progress_path, copy_progress_bytes_t progress_bytes, void *userdata);
      75           0 : static inline int btrfs_subvol_snapshot(const char *old_path, const char *new_path, BtrfsSnapshotFlags flags) {
      76           0 :         return btrfs_subvol_snapshot_full(old_path, new_path, flags, NULL, NULL, NULL);
      77             : }
      78             : 
      79             : int btrfs_subvol_remove(const char *path, BtrfsRemoveFlags flags);
      80             : int btrfs_subvol_remove_fd(int fd, const char *subvolume, BtrfsRemoveFlags flags);
      81             : 
      82             : int btrfs_subvol_set_read_only_fd(int fd, bool b);
      83             : int btrfs_subvol_set_read_only(const char *path, bool b);
      84             : int btrfs_subvol_get_read_only_fd(int fd);
      85             : 
      86             : int btrfs_subvol_get_id(int fd, const char *subvolume, uint64_t *ret);
      87             : int btrfs_subvol_get_id_fd(int fd, uint64_t *ret);
      88             : int btrfs_subvol_get_parent(int fd, uint64_t subvol_id, uint64_t *ret);
      89             : 
      90             : int btrfs_subvol_get_info_fd(int fd, uint64_t subvol_id, BtrfsSubvolInfo *info);
      91             : 
      92             : int btrfs_subvol_find_subtree_qgroup(int fd, uint64_t subvol_id, uint64_t *ret);
      93             : 
      94             : int btrfs_subvol_get_subtree_quota(const char *path, uint64_t subvol_id, BtrfsQuotaInfo *quota);
      95             : int btrfs_subvol_get_subtree_quota_fd(int fd, uint64_t subvol_id, BtrfsQuotaInfo *quota);
      96             : 
      97             : int btrfs_subvol_set_subtree_quota_limit(const char *path, uint64_t subvol_id, uint64_t referenced_max);
      98             : int btrfs_subvol_set_subtree_quota_limit_fd(int fd, uint64_t subvol_id, uint64_t referenced_max);
      99             : 
     100             : int btrfs_subvol_auto_qgroup_fd(int fd, uint64_t subvol_id, bool new_qgroup);
     101             : int btrfs_subvol_auto_qgroup(const char *path, uint64_t subvol_id, bool create_intermediary_qgroup);
     102             : 
     103             : int btrfs_qgroupid_make(uint64_t level, uint64_t id, uint64_t *ret);
     104             : int btrfs_qgroupid_split(uint64_t qgroupid, uint64_t *level, uint64_t *id);
     105             : 
     106             : int btrfs_qgroup_create(int fd, uint64_t qgroupid);
     107             : int btrfs_qgroup_destroy(int fd, uint64_t qgroupid);
     108             : int btrfs_qgroup_destroy_recursive(int fd, uint64_t qgroupid);
     109             : 
     110             : int btrfs_qgroup_set_limit_fd(int fd, uint64_t qgroupid, uint64_t referenced_max);
     111             : int btrfs_qgroup_set_limit(const char *path, uint64_t qgroupid, uint64_t referenced_max);
     112             : 
     113             : int btrfs_qgroup_copy_limits(int fd, uint64_t old_qgroupid, uint64_t new_qgroupid);
     114             : 
     115             : int btrfs_qgroup_assign(int fd, uint64_t child, uint64_t parent);
     116             : int btrfs_qgroup_unassign(int fd, uint64_t child, uint64_t parent);
     117             : 
     118             : int btrfs_qgroup_find_parents(int fd, uint64_t qgroupid, uint64_t **ret);
     119             : 
     120             : int btrfs_qgroup_get_quota_fd(int fd, uint64_t qgroupid, BtrfsQuotaInfo *quota);
     121             : int btrfs_qgroup_get_quota(const char *path, uint64_t qgroupid, BtrfsQuotaInfo *quota);