121 lines
4.8 KiB
C
121 lines
4.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include "sd-id128.h"
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#include "copy.h"
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#include "time-util.h"
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typedef struct BtrfsSubvolInfo {
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uint64_t subvol_id;
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usec_t otime;
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sd_id128_t uuid;
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sd_id128_t parent_uuid;
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bool read_only;
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} BtrfsSubvolInfo;
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typedef struct BtrfsQuotaInfo {
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uint64_t referenced;
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uint64_t exclusive;
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uint64_t referenced_max;
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uint64_t exclusive_max;
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} BtrfsQuotaInfo;
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typedef enum BtrfsSnapshotFlags {
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BTRFS_SNAPSHOT_FALLBACK_COPY = 1, /* If the source isn't a subvolume, reflink everything */
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BTRFS_SNAPSHOT_READ_ONLY = 2,
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BTRFS_SNAPSHOT_RECURSIVE = 4,
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BTRFS_SNAPSHOT_QUOTA = 8,
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BTRFS_SNAPSHOT_FALLBACK_DIRECTORY = 16, /* If the destination doesn't support subvolumes, reflink/copy instead */
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BTRFS_SNAPSHOT_FALLBACK_IMMUTABLE = 32, /* When we can't create a subvolume, use the FS_IMMUTABLE attribute for indicating read-only */
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} BtrfsSnapshotFlags;
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typedef enum BtrfsRemoveFlags {
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BTRFS_REMOVE_RECURSIVE = 1,
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BTRFS_REMOVE_QUOTA = 2,
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} BtrfsRemoveFlags;
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int btrfs_is_filesystem(int fd);
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int btrfs_is_subvol_fd(int fd);
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int btrfs_is_subvol(const char *path);
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int btrfs_reflink(int infd, int outfd);
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int btrfs_clone_range(int infd, uint64_t in_offset, int ofd, uint64_t out_offset, uint64_t sz);
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int btrfs_get_block_device_fd(int fd, dev_t *dev);
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int btrfs_get_block_device(const char *path, dev_t *dev);
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int btrfs_defrag_fd(int fd);
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int btrfs_defrag(const char *p);
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int btrfs_quota_enable_fd(int fd, bool b);
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int btrfs_quota_enable(const char *path, bool b);
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int btrfs_quota_scan_start(int fd);
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int btrfs_quota_scan_wait(int fd);
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int btrfs_quota_scan_ongoing(int fd);
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int btrfs_subvol_make(const char *path);
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int btrfs_subvol_make_fd(int fd, const char *subvolume);
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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);
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static inline int btrfs_subvol_snapshot_fd(int old_fd, const char *new_path, BtrfsSnapshotFlags flags) {
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return btrfs_subvol_snapshot_fd_full(old_fd, new_path, flags, NULL, NULL, NULL);
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}
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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);
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static inline int btrfs_subvol_snapshot(const char *old_path, const char *new_path, BtrfsSnapshotFlags flags) {
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return btrfs_subvol_snapshot_full(old_path, new_path, flags, NULL, NULL, NULL);
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}
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int btrfs_subvol_remove(const char *path, BtrfsRemoveFlags flags);
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int btrfs_subvol_remove_fd(int fd, const char *subvolume, BtrfsRemoveFlags flags);
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int btrfs_subvol_set_read_only_fd(int fd, bool b);
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int btrfs_subvol_set_read_only(const char *path, bool b);
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int btrfs_subvol_get_read_only_fd(int fd);
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int btrfs_subvol_get_id(int fd, const char *subvolume, uint64_t *ret);
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int btrfs_subvol_get_id_fd(int fd, uint64_t *ret);
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int btrfs_subvol_get_parent(int fd, uint64_t subvol_id, uint64_t *ret);
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int btrfs_subvol_get_info_fd(int fd, uint64_t subvol_id, BtrfsSubvolInfo *info);
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int btrfs_subvol_find_subtree_qgroup(int fd, uint64_t subvol_id, uint64_t *ret);
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int btrfs_subvol_get_subtree_quota(const char *path, uint64_t subvol_id, BtrfsQuotaInfo *quota);
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int btrfs_subvol_get_subtree_quota_fd(int fd, uint64_t subvol_id, BtrfsQuotaInfo *quota);
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int btrfs_subvol_set_subtree_quota_limit(const char *path, uint64_t subvol_id, uint64_t referenced_max);
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int btrfs_subvol_set_subtree_quota_limit_fd(int fd, uint64_t subvol_id, uint64_t referenced_max);
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int btrfs_subvol_auto_qgroup_fd(int fd, uint64_t subvol_id, bool new_qgroup);
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int btrfs_subvol_auto_qgroup(const char *path, uint64_t subvol_id, bool create_intermediary_qgroup);
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int btrfs_qgroupid_make(uint64_t level, uint64_t id, uint64_t *ret);
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int btrfs_qgroupid_split(uint64_t qgroupid, uint64_t *level, uint64_t *id);
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int btrfs_qgroup_create(int fd, uint64_t qgroupid);
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int btrfs_qgroup_destroy(int fd, uint64_t qgroupid);
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int btrfs_qgroup_destroy_recursive(int fd, uint64_t qgroupid);
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int btrfs_qgroup_set_limit_fd(int fd, uint64_t qgroupid, uint64_t referenced_max);
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int btrfs_qgroup_set_limit(const char *path, uint64_t qgroupid, uint64_t referenced_max);
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int btrfs_qgroup_copy_limits(int fd, uint64_t old_qgroupid, uint64_t new_qgroupid);
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int btrfs_qgroup_assign(int fd, uint64_t child, uint64_t parent);
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int btrfs_qgroup_unassign(int fd, uint64_t child, uint64_t parent);
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int btrfs_qgroup_find_parents(int fd, uint64_t qgroupid, uint64_t **ret);
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int btrfs_qgroup_get_quota_fd(int fd, uint64_t qgroupid, BtrfsQuotaInfo *quota);
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int btrfs_qgroup_get_quota(const char *path, uint64_t qgroupid, BtrfsQuotaInfo *quota);
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