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-rw-r--r--src/basic/btrfs-util.h87
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diff --git a/src/basic/btrfs-util.h b/src/basic/btrfs-util.h
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#pragma once
+
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include "time-util.h"
+
+typedef struct BtrfsSubvolInfo {
+ uint64_t subvol_id;
+ usec_t otime;
+
+ sd_id128_t uuid;
+ sd_id128_t parent_uuid;
+
+ bool read_only;
+} BtrfsSubvolInfo;
+
+typedef struct BtrfsQuotaInfo {
+ uint64_t referenced;
+ uint64_t exclusive;
+ uint64_t referenced_max;
+ uint64_t exclusive_max;
+} BtrfsQuotaInfo;
+
+typedef enum BtrfsSnapshotFlags {
+ BTRFS_SNAPSHOT_FALLBACK_COPY = 1,
+ BTRFS_SNAPSHOT_READ_ONLY = 2,
+ BTRFS_SNAPSHOT_RECURSIVE = 4,
+} BtrfsSnapshotFlags;
+
+int btrfs_is_filesystem(int fd);
+int btrfs_is_subvol(int fd);
+
+int btrfs_subvol_make(const char *path);
+int btrfs_subvol_make_label(const char *path);
+
+int btrfs_subvol_snapshot_fd(int old_fd, const char *new_path, BtrfsSnapshotFlags flags);
+int btrfs_subvol_snapshot(const char *old_path, const char *new_path, BtrfsSnapshotFlags flags);
+
+int btrfs_subvol_set_read_only_fd(int fd, bool b);
+int btrfs_subvol_set_read_only(const char *path, bool b);
+int btrfs_subvol_get_read_only_fd(int fd);
+int btrfs_subvol_get_id_fd(int fd, uint64_t *ret);
+int btrfs_subvol_get_info_fd(int fd, BtrfsSubvolInfo *info);
+int btrfs_subvol_get_quota_fd(int fd, BtrfsQuotaInfo *quota);
+
+int btrfs_reflink(int infd, int outfd);
+int btrfs_clone_range(int infd, uint64_t in_offset, int ofd, uint64_t out_offset, uint64_t sz);
+
+int btrfs_get_block_device_fd(int fd, dev_t *dev);
+int btrfs_get_block_device(const char *path, dev_t *dev);
+
+int btrfs_defrag_fd(int fd);
+int btrfs_defrag(const char *p);
+
+int btrfs_quota_enable_fd(int fd, bool b);
+int btrfs_quota_enable(const char *path, bool b);
+
+int btrfs_quota_limit_fd(int fd, uint64_t referenced_max);
+int btrfs_quota_limit(const char *path, uint64_t referenced_max);
+
+int btrfs_resize_loopback_fd(int fd, uint64_t size, bool grow_only);
+int btrfs_resize_loopback(const char *path, uint64_t size, bool grow_only);
+
+int btrfs_subvol_remove(const char *path, bool recursive);
+int btrfs_subvol_remove_fd(int fd, const char *subvolume, bool recursive);