-/*
- * lxc: linux Container library
- *
- * (C) Copyright IBM Corp. 2007, 2008
- *
- * Authors:
- * Daniel Lezcano <daniel.lezcano at free.fr>
- *
- * This library 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.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
+/* SPDX-License-Identifier: LGPL-2.1+ */
#ifndef __LXC_STORAGE_H
#define __LXC_STORAGE_H
#include "config.h"
+
#include <stdint.h>
#include <sys/mount.h>
-#include <lxc/lxccontainer.h>
+#include "lxc.h"
#if IS_BIONIC
-#include <../include/lxcmntent.h>
+#include "lxcmntent.h"
#else
#include <mntent.h>
#endif
+#include "compiler.h"
+#include "conf.h"
+
#ifndef MS_DIRSYNC
#define MS_DIRSYNC 128
#endif
#endif
#define DEFAULT_FS_SIZE 1073741824
-#define DEFAULT_FSTYPE "ext3"
+#define DEFAULT_FSTYPE "ext4"
#define LXC_STORAGE_INTERNAL_OVERLAY_RESTORE (1 << 6)
int (*umount)(struct lxc_storage *bdev);
int (*destroy)(struct lxc_storage *bdev);
int (*create)(struct lxc_storage *bdev, const char *dest, const char *n,
- struct bdev_specs *specs);
+ struct bdev_specs *specs, const struct lxc_conf *conf);
/* given original mount, rename the paths for cloned container */
int (*clone_paths)(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
/* index for the connected nbd device. */
int nbd_idx;
int flags;
+ struct lxc_rootfs *rootfs;
};
-extern bool storage_is_dir(struct lxc_conf *conf, const char *path);
-extern bool storage_can_backup(struct lxc_conf *conf);
-
-/* Instantiate a lxc_storage object. The src is used to determine which blockdev
- * type this should be. The dst and data are optional, and will be used in case
- * of mount/umount.
- *
- * The source will be "dir:/var/lib/lxc/c1" or "lvm:/dev/lxc/c1". For other
- * backing stores, this will allow additional options. In particular,
- * "overlayfs:/var/lib/lxc/canonical/rootfs:/var/lib/lxc/c1/delta" will mean use
- * /var/lib/lxc/canonical/rootfs as lower dir, and /var/lib/lxc/c1/delta as the
- * upper, writeable layer.
+/**
+ * storage_lxc_is_dir : Check whether the roots is a directory. This function will
+ * trust the config file. If the config file key
+ * lxc.rootfs.path is set to <storage type>:<container path>
+ * the confile parser will have split this into <storage type>
+ * and <container path> and set the <bdev_type> member in the
+ * lxc_rootfs struct to <storage type> and the <path> member
+ * will be set to a clean <container path> without the <storage
+ * type> prefix. This is the new, clean way of handling storage
+ * type specifications. If the <storage type> prefix is not
+ * detected liblxc will try to detect the storage type.
*/
-extern struct lxc_storage *storage_init(struct lxc_conf *conf, const char *src,
- const char *dst, const char *data);
-
-extern struct lxc_storage *storage_copy(struct lxc_container *c0,
- const char *cname, const char *lxcpath,
- const char *bdevtype, int flags,
- const char *bdevdata, uint64_t newsize,
- bool *needs_rdep);
-extern struct lxc_storage *storage_create(const char *dest, const char *type,
- const char *cname,
- struct bdev_specs *specs);
-extern void storage_put(struct lxc_storage *bdev);
-extern bool storage_destroy(struct lxc_conf *conf);
-
-/* callback function to be used with userns_exec_1() */
-extern int storage_destroy_wrapper(void *data);
-extern bool rootfs_is_blockdev(struct lxc_conf *conf);
-extern char *lxc_storage_get_path(char *src, const char *prefix);
+__hidden extern bool storage_lxc_is_dir(struct lxc_conf *conf);
+__hidden extern bool storage_can_backup(struct lxc_conf *conf);
+__hidden extern struct lxc_storage *storage_init(struct lxc_conf *conf);
+__hidden extern struct lxc_storage *storage_copy(struct lxc_container *c, const char *cname,
+ const char *lxcpath, const char *bdevtype,
+ int flags, const char *bdevdata, uint64_t newsize,
+ bool *needs_rdep);
+__hidden extern struct lxc_storage *storage_create(const char *dest, const char *type,
+ const char *cname, struct bdev_specs *specs,
+ const struct lxc_conf *conf);
+__hidden extern void storage_put(struct lxc_storage *bdev);
+__hidden extern bool storage_destroy(struct lxc_conf *conf);
+__hidden extern bool rootfs_is_blockdev(struct lxc_conf *conf);
+__hidden extern const char *lxc_storage_get_path(char *src, const char *prefix);
#endif /* #define __LXC_STORAGE_H */
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