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Code Issues Releases Wiki Activity

tree-wide: struct bdev -> struct lxc_storage

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner
2017-07-29 17:04:44 +02:00
parent 28d832c4e4
commit 10bc186195
28 changed files with 431 additions and 475 deletions
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6
src/lxc/conf.c
View File

@@ -1171,7 +1171,7 @@ static int lxc_fill_autodev(const struct lxc_rootfs *rootfs)
static int lxc_setup_rootfs(struct lxc_conf *conf)
{
int ret;
struct bdev *bdev;
struct lxc_storage *bdev;
const struct lxc_rootfs *rootfs;
rootfs = &conf->rootfs;
@@ -1189,7 +1189,7 @@ static int lxc_setup_rootfs(struct lxc_conf *conf)
return -1;
}
bdev = bdev_init(conf, rootfs->path, rootfs->mount, rootfs->options);
bdev = storage_init(conf, rootfs->path, rootfs->mount, rootfs->options);
if (!bdev) {
ERROR("Failed to mount rootfs \"%s\" onto \"%s\" with options \"%s\".",
rootfs->path, rootfs->mount,
@@ -1198,7 +1198,7 @@ static int lxc_setup_rootfs(struct lxc_conf *conf)
}
ret = bdev->ops->mount(bdev);
bdev_put(bdev);
storage_put(bdev);
if (ret < 0) {
ERROR("Failed to mount rootfs \"%s\" onto \"%s\" with options \"%s\".",
rootfs->path, rootfs->mount,

83
src/lxc/lxccontainer.c
View File

@@ -1154,16 +1154,16 @@ static bool create_container_dir(struct lxc_container *c)
return ret == 0;
}
/*
* do_bdev_create: thin wrapper around bdev_create(). Like bdev_create(),
* it returns a mounted bdev on success, NULL on error.
/* do_storage_create: thin wrapper around storage_create(). Like
* storage_create(), it returns a mounted bdev on success, NULL on error.
*/
static struct bdev *do_bdev_create(struct lxc_container *c, const char *type,
struct bdev_specs *specs)
static struct lxc_storage *do_storage_create(struct lxc_container *c,
const char *type,
struct bdev_specs *specs)
{
char *dest;
size_t len;
struct bdev *bdev;
struct lxc_storage *bdev;
int ret;
/* rootfs.path or lxcpath/lxcname/rootfs */
@@ -1181,7 +1181,7 @@ static struct bdev *do_bdev_create(struct lxc_container *c, const char *type,
if (ret < 0 || ret >= len)
return NULL;
bdev = bdev_create(dest, type, c->name, specs);
bdev = storage_create(dest, type, c->name, specs);
if (!bdev) {
ERROR("Failed to create backing store type %s", type);
return NULL;
@@ -1200,7 +1200,7 @@ static struct bdev *do_bdev_create(struct lxc_container *c, const char *type,
if (chown_mapped_root(bdev->dest, c->lxc_conf) < 0) {
ERROR("Error chowning %s to container root", bdev->dest);
suggest_default_idmap();
bdev_put(bdev);
storage_put(bdev);
return NULL;
}
}
@@ -1232,7 +1232,7 @@ static bool create_run_template(struct lxc_container *c, char *tpath, bool need_
if (pid == 0) { // child
char *patharg, *namearg, *rootfsarg;
struct bdev *bdev = NULL;
struct lxc_storage *bdev = NULL;
int i;
int ret, len, nargs = 0;
char **newargv;
@@ -1242,7 +1242,7 @@ static bool create_run_template(struct lxc_container *c, char *tpath, bool need_
exit(1);
}
bdev = bdev_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
bdev = storage_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
if (!bdev) {
ERROR("Error opening rootfs");
exit(1);
@@ -1694,12 +1694,13 @@ static bool do_lxcapi_create(struct lxc_container *c, const char *t,
}
if (pid == 0) { // child
struct bdev *bdev = NULL;
struct lxc_storage *bdev = NULL;
if (!(bdev = do_bdev_create(c, bdevtype, specs))) {
bdev = do_storage_create(c, bdevtype, specs);
if (!bdev) {
ERROR("Error creating backing store type %s for %s",
bdevtype ? bdevtype : "(none)", c->name);
exit(1);
exit(EXIT_FAILURE);
}
/* save config file again to store the new rootfs location */
@@ -1708,9 +1709,9 @@ static bool do_lxcapi_create(struct lxc_container *c, const char *t,
// parent task won't see bdev in config so we delete it
bdev->ops->umount(bdev);
bdev->ops->destroy(bdev);
exit(1);
exit(EXIT_FAILURE);
}
exit(0);
exit(EXIT_SUCCESS);
}
if (wait_for_pid(pid) != 0)
goto out_unlock;
@@ -2565,12 +2566,12 @@ static bool has_snapshots(struct lxc_container *c)
static bool do_destroy_container(struct lxc_conf *conf) {
if (am_unpriv()) {
if (userns_exec_1(conf, bdev_destroy_wrapper, conf,
"bdev_destroy_wrapper") < 0)
if (userns_exec_1(conf, storage_destroy_wrapper, conf,
"storage_destroy_wrapper") < 0)
return false;
return true;
}
return bdev_destroy(conf);
return storage_destroy(conf);
}
static int lxc_rmdir_onedev_wrapper(void *data)
@@ -3114,14 +3115,14 @@ static int copy_storage(struct lxc_container *c0, struct lxc_container *c,
const char *newtype, int flags, const char *bdevdata,
uint64_t newsize)
{
struct bdev *bdev;
struct lxc_storage *bdev;
int need_rdep;
if (should_default_to_snapshot(c0, c))
flags |= LXC_CLONE_SNAPSHOT;
bdev = bdev_copy(c0, c->name, c->config_path, newtype, flags, bdevdata,
newsize, &need_rdep);
bdev = storage_copy(c0, c->name, c->config_path, newtype, flags,
bdevdata, newsize, &need_rdep);
if (!bdev) {
ERROR("Error copying storage.");
return -1;
@@ -3130,7 +3131,7 @@ static int copy_storage(struct lxc_container *c0, struct lxc_container *c,
/* Set new rootfs. */
free(c->lxc_conf->rootfs.path);
c->lxc_conf->rootfs.path = strdup(bdev->src);
bdev_put(bdev);
storage_put(bdev);
if (!c->lxc_conf->rootfs.path) {
ERROR("Out of memory while setting storage path.");
@@ -3183,7 +3184,7 @@ static int clone_update_rootfs(struct clone_update_data *data)
char **hookargs = data->hookargs;
int ret = -1;
char path[MAXPATHLEN];
struct bdev *bdev;
struct lxc_storage *bdev;
FILE *fout;
struct lxc_conf *conf = c->lxc_conf;
@@ -3203,13 +3204,13 @@ static int clone_update_rootfs(struct clone_update_data *data)
if (unshare(CLONE_NEWNS) < 0)
return -1;
bdev = bdev_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
bdev = storage_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
if (!bdev)
return -1;
if (strcmp(bdev->type, "dir") != 0) {
if (unshare(CLONE_NEWNS) < 0) {
ERROR("error unsharing mounts");
bdev_put(bdev);
storage_put(bdev);
return -1;
}
if (detect_shared_rootfs()) {
@@ -3219,7 +3220,7 @@ static int clone_update_rootfs(struct clone_update_data *data)
}
}
if (bdev->ops->mount(bdev) < 0) {
bdev_put(bdev);
storage_put(bdev);
return -1;
}
} else { // TODO come up with a better way
@@ -3247,14 +3248,14 @@ static int clone_update_rootfs(struct clone_update_data *data)
if (run_lxc_hooks(c->name, "clone", conf, c->get_config_path(c), hookargs)) {
ERROR("Error executing clone hook for %s", c->name);
bdev_put(bdev);
storage_put(bdev);
return -1;
}
}
if (!(flags & LXC_CLONE_KEEPNAME)) {
ret = snprintf(path, MAXPATHLEN, "%s/etc/hostname", bdev->dest);
bdev_put(bdev);
storage_put(bdev);
if (ret < 0 || ret >= MAXPATHLEN)
return -1;
@@ -3270,9 +3271,9 @@ static int clone_update_rootfs(struct clone_update_data *data)
}
if (fclose(fout) < 0)
return -1;
} else {
storage_put(bdev);
}
else
bdev_put(bdev);
return 0;
}
@@ -3512,7 +3513,7 @@ static struct lxc_container *lxcapi_clone(struct lxc_container *c, const char *n
static bool do_lxcapi_rename(struct lxc_container *c, const char *newname)
{
struct bdev *bdev;
struct lxc_storage *bdev;
struct lxc_container *newc;
if (!c || !c->name || !c->config_path || !c->lxc_conf)
@@ -3522,14 +3523,14 @@ static bool do_lxcapi_rename(struct lxc_container *c, const char *newname)
ERROR("Renaming a container with snapshots is not supported");
return false;
}
bdev = bdev_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
bdev = storage_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
if (!bdev) {
ERROR("Failed to find original backing store type");
return false;
}
newc = lxcapi_clone(c, newname, c->config_path, LXC_CLONE_KEEPMACADDR, NULL, bdev->type, 0, NULL);
bdev_put(bdev);
storage_put(bdev);
if (!newc) {
lxc_container_put(newc);
return false;
@@ -3641,7 +3642,7 @@ static int do_lxcapi_snapshot(struct lxc_container *c, const char *commentfile)
if (!c || !lxcapi_is_defined(c))
return -1;
if (!bdev_can_backup(c->lxc_conf)) {
if (!storage_can_backup(c->lxc_conf)) {
ERROR("%s's backing store cannot be backed up.", c->name);
ERROR("Your container must use another backing store type.");
return -1;
@@ -3667,7 +3668,7 @@ static int do_lxcapi_snapshot(struct lxc_container *c, const char *commentfile)
*/
flags = LXC_CLONE_SNAPSHOT | LXC_CLONE_KEEPMACADDR | LXC_CLONE_KEEPNAME |
LXC_CLONE_KEEPBDEVTYPE | LXC_CLONE_MAYBE_SNAPSHOT;
if (bdev_is_dir(c->lxc_conf, c->lxc_conf->rootfs.path)) {
if (storage_is_dir(c->lxc_conf, c->lxc_conf->rootfs.path)) {
ERROR("Snapshot of directory-backed container requested.");
ERROR("Making a copy-clone. If you do want snapshots, then");
ERROR("please create an aufs or overlay clone first, snapshot that");
@@ -3861,7 +3862,7 @@ static bool do_lxcapi_snapshot_restore(struct lxc_container *c, const char *snap
char clonelxcpath[MAXPATHLEN];
int flags = 0;
struct lxc_container *snap, *rest;
struct bdev *bdev;
struct lxc_storage *bdev;
bool b = false;
if (!c || !c->name || !c->config_path)
@@ -3872,7 +3873,7 @@ static bool do_lxcapi_snapshot_restore(struct lxc_container *c, const char *snap
return false;
}
bdev = bdev_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
bdev = storage_init(c->lxc_conf, c->lxc_conf->rootfs.path, c->lxc_conf->rootfs.mount, NULL);
if (!bdev) {
ERROR("Failed to find original backing store type");
return false;
@@ -3882,7 +3883,7 @@ static bool do_lxcapi_snapshot_restore(struct lxc_container *c, const char *snap
newname = c->name;
if (!get_snappath_dir(c, clonelxcpath)) {
bdev_put(bdev);
storage_put(bdev);
return false;
}
// how should we lock this?
@@ -3891,7 +3892,7 @@ static bool do_lxcapi_snapshot_restore(struct lxc_container *c, const char *snap
if (!snap || !lxcapi_is_defined(snap)) {
ERROR("Could not open snapshot %s", snapname);
if (snap) lxc_container_put(snap);
bdev_put(bdev);
storage_put(bdev);
return false;
}
@@ -3899,7 +3900,7 @@ static bool do_lxcapi_snapshot_restore(struct lxc_container *c, const char *snap
if (!container_destroy(c)) {
ERROR("Could not destroy existing container %s", newname);
lxc_container_put(snap);
bdev_put(bdev);
storage_put(bdev);
return false;
}
}
@@ -3908,7 +3909,7 @@ static bool do_lxcapi_snapshot_restore(struct lxc_container *c, const char *snap
flags = LXC_CLONE_SNAPSHOT | LXC_CLONE_MAYBE_SNAPSHOT;
rest = lxcapi_clone(snap, newname, c->config_path, flags,
bdev->type, NULL, 0, NULL);
bdev_put(bdev);
storage_put(bdev);
if (rest && lxcapi_is_defined(rest))
b = true;
if (rest)

8
src/lxc/start.c
View File

@@ -1767,10 +1767,12 @@ static int lxc_rmdir_onedev_wrapper(void *data)
static bool do_destroy_container(struct lxc_conf *conf) {
if (am_unpriv()) {
if (userns_exec_1(conf, bdev_destroy_wrapper, conf,
"bdev_destroy_wrapper") < 0)
if (userns_exec_1(conf, storage_destroy_wrapper, conf,
"storage_destroy_wrapper") < 0)
return false;
return true;
}
return bdev_destroy(conf);
return storage_destroy(conf);
}

17
src/lxc/storage/aufs.c
View File

@@ -34,15 +34,16 @@
#include "storage.h"
#include "utils.h"
lxc_log_define(lxcaufs, lxc);
lxc_log_define(aufs, lxc);
/* the bulk of this needs to become a common helper */
extern char *dir_new_path(char *src, const char *oldname, const char *name,
const char *oldpath, const char *lxcpath);
int aufs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
int aufs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
if (!snap) {
ERROR("aufs is only for snapshot clones");
@@ -172,7 +173,7 @@ int aufs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
* changes after starting the container are written to
* $lxcpath/$lxcname/delta0
*/
int aufs_create(struct bdev *bdev, const char *dest, const char *n,
int aufs_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
char *delta;
@@ -214,7 +215,7 @@ int aufs_create(struct bdev *bdev, const char *dest, const char *n,
return 0;
}
int aufs_destroy(struct bdev *orig)
int aufs_destroy(struct lxc_storage *orig)
{
char *upper;
@@ -235,7 +236,7 @@ bool aufs_detect(const char *path)
return false;
}
int aufs_mount(struct bdev *bdev)
int aufs_mount(struct lxc_storage *bdev)
{
char *tmp, *options, *dup, *lower, *upper;
int len;
@@ -307,7 +308,7 @@ int aufs_mount(struct bdev *bdev)
return ret;
}
int aufs_umount(struct bdev *bdev)
int aufs_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "aufs"))
return -22;

29
src/lxc/storage/aufs.h
View File

@@ -34,34 +34,27 @@
#include <mntent.h>
#endif
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/* defined in conf.h */
struct lxc_rootfs;
/*
* Functions associated with an aufs bdev struct.
*/
int aufs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf);
int aufs_create(struct bdev *bdev, const char *dest, const char *n,
int aufs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf);
int aufs_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int aufs_destroy(struct bdev *orig);
int aufs_destroy(struct lxc_storage *orig);
bool aufs_detect(const char *path);
int aufs_mount(struct bdev *bdev);
int aufs_umount(struct bdev *bdev);
int aufs_mount(struct lxc_storage *bdev);
int aufs_umount(struct lxc_storage *bdev);
/*
* Get rootfs path for aufs backed containers. Allocated memory must be freed
* by caller.
/* Get rootfs path for aufs backed containers. Allocated memory must be freed by
* caller.
*/
char *aufs_get_rootfs(const char *rootfs_path, size_t *rootfslen);

26
src/lxc/storage/btrfs.c
View File

@@ -42,7 +42,7 @@
#include "storage.h"
#include "utils.h"
lxc_log_define(lxcbtrfs, lxc);
lxc_log_define(btrfs, lxc);
/*
* Return the full path of objid under dirid. Let's say dirid is
@@ -188,7 +188,7 @@ bool btrfs_detect(const char *path)
return false;
}
int btrfs_mount(struct bdev *bdev)
int btrfs_mount(struct lxc_storage *bdev)
{
unsigned long mntflags;
char *mntdata, *src;
@@ -212,7 +212,7 @@ int btrfs_mount(struct bdev *bdev)
return ret;
}
int btrfs_umount(struct bdev *bdev)
int btrfs_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "btrfs"))
return -22;
@@ -371,10 +371,10 @@ int btrfs_snapshot_wrapper(void *data)
return btrfs_snapshot(src, arg->dest);
}
int btrfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
int btrfs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf)
{
char *src;
@@ -417,8 +417,8 @@ int btrfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return 0;
}
bool btrfs_create_clone(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize)
bool btrfs_create_clone(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize)
{
int ret;
struct rsync_data data = {0, 0};
@@ -460,8 +460,8 @@ bool btrfs_create_clone(struct lxc_conf *conf, struct bdev *orig,
return true;
}
bool btrfs_create_snapshot(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize)
bool btrfs_create_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize)
{
int ret;
@@ -823,7 +823,7 @@ bool btrfs_try_remove_subvol(const char *path)
return btrfs_recursive_destroy(path) == 0;
}
int btrfs_destroy(struct bdev *orig)
int btrfs_destroy(struct lxc_storage *orig)
{
char *src;
@@ -832,7 +832,7 @@ int btrfs_destroy(struct bdev *orig)
return btrfs_recursive_destroy(src);
}
int btrfs_create(struct bdev *bdev, const char *dest, const char *n,
int btrfs_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
int ret;

60
src/lxc/storage/btrfs.h
View File

@@ -366,13 +366,10 @@ BTRFS_SETGET_STACK_FUNCS(stack_root_ref_sequence, struct btrfs_root_ref, sequenc
/* defined as btrfs_stack_root_ref_name_len */
BTRFS_SETGET_STACK_FUNCS(stack_root_ref_name_len, struct btrfs_root_ref, name_len, 16);
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
struct mytree_node {
@@ -387,35 +384,30 @@ struct my_btrfs_tree {
int num;
};
/*
* Functions associated with a btrfs bdev struct.
*/
int btrfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf);
int btrfs_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int btrfs_destroy(struct bdev *orig);
bool btrfs_detect(const char *path);
int btrfs_mount(struct bdev *bdev);
int btrfs_umount(struct bdev *bdev);
extern int btrfs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int btrfs_create(struct lxc_storage *bdev, const char *dest,
const char *n, struct bdev_specs *specs);
extern int btrfs_destroy(struct lxc_storage *orig);
extern bool btrfs_detect(const char *path);
extern int btrfs_mount(struct lxc_storage *bdev);
extern int btrfs_umount(struct lxc_storage *bdev);
/*
* Helper functions
*/
char *get_btrfs_subvol_path(int fd, u64 dir_id, u64 objid, char *name,
int name_len);
int btrfs_list_get_path_rootid(int fd, u64 *treeid);
bool is_btrfs_fs(const char *path);
int is_btrfs_subvol(const char *path);
bool btrfs_try_remove_subvol(const char *path);
int btrfs_same_fs(const char *orig, const char *new);
int btrfs_snapshot(const char *orig, const char *new);
int btrfs_snapshot_wrapper(void *data);
bool btrfs_create_clone(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize);
bool btrfs_create_snapshot(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize);
extern char *get_btrfs_subvol_path(int fd, u64 dir_id, u64 objid, char *name,
int name_len);
extern int btrfs_list_get_path_rootid(int fd, u64 *treeid);
extern bool is_btrfs_fs(const char *path);
extern int is_btrfs_subvol(const char *path);
extern bool btrfs_try_remove_subvol(const char *path);
extern int btrfs_same_fs(const char *orig, const char *new);
extern int btrfs_snapshot(const char *orig, const char *new);
extern int btrfs_snapshot_wrapper(void *data);
extern bool btrfs_create_clone(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
extern bool btrfs_create_snapshot(struct lxc_conf *conf,
struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
#endif // __LXC_BTRFS_H
#endif /* __LXC_BTRFS_H */

22
src/lxc/storage/dir.c
View File

@@ -29,15 +29,15 @@
#include "storage.h"
#include "utils.h"
lxc_log_define(lxcdir, lxc);
lxc_log_define(dir, lxc);
/*
* for a simple directory bind mount, we substitute the old container
* name and paths for the new
/* For a simple directory bind mount, we substitute the old container name and
* paths for the new.
*/
int dir_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
int dir_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
char *src_no_prefix;
int ret;
@@ -75,7 +75,7 @@ int dir_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return 0;
}
int dir_create(struct bdev *bdev, const char *dest, const char *n,
int dir_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
int ret;
@@ -118,7 +118,7 @@ int dir_create(struct bdev *bdev, const char *dest, const char *n,
return 0;
}
int dir_destroy(struct bdev *orig)
int dir_destroy(struct lxc_storage *orig)
{
int ret;
char *src;
@@ -145,7 +145,7 @@ bool dir_detect(const char *path)
return false;
}
int dir_mount(struct bdev *bdev)
int dir_mount(struct lxc_storage *bdev)
{
int ret;
unsigned long mflags, mntflags;
@@ -186,7 +186,7 @@ int dir_mount(struct bdev *bdev)
return ret;
}
int dir_umount(struct bdev *bdev)
int dir_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "dir"))
return -22;

27
src/lxc/storage/dir.h
View File

@@ -28,26 +28,21 @@
#include <stdbool.h>
#include <stdint.h>
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/*
* Functions associated with a dir bdev struct.
*/
int dir_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf);
int dir_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int dir_destroy(struct bdev *orig);
bool dir_detect(const char *path);
int dir_mount(struct bdev *bdev);
int dir_umount(struct bdev *bdev);
extern int dir_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int dir_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern int dir_destroy(struct lxc_storage *orig);
extern bool dir_detect(const char *path);
extern int dir_mount(struct lxc_storage *bdev);
extern int dir_umount(struct lxc_storage *bdev);
#endif /* __LXC_DIR_H */

17
src/lxc/storage/loop.c
View File

@@ -40,7 +40,7 @@
#include "storage_utils.h"
#include "utils.h"
lxc_log_define(lxcloop, lxc);
lxc_log_define(loop, lxc);
static int do_loop_create(const char *path, uint64_t size, const char *fstype);
@@ -48,9 +48,10 @@ static int do_loop_create(const char *path, uint64_t size, const char *fstype);
* No idea what the original blockdev will be called, but the copy will be
* called $lxcpath/$lxcname/rootdev
*/
int loop_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
int loop_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
uint64_t size = newsize;
int len, ret;
@@ -129,7 +130,7 @@ int loop_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return 0;
}
int loop_create(struct bdev *bdev, const char *dest, const char *n,
int loop_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *fstype;
@@ -202,7 +203,7 @@ int loop_create(struct bdev *bdev, const char *dest, const char *n,
return 0;
}
int loop_destroy(struct bdev *orig) {
int loop_destroy(struct lxc_storage *orig) {
return unlink(orig->src + 5);
}
@@ -224,7 +225,7 @@ bool loop_detect(const char *path)
return false;
}
int loop_mount(struct bdev *bdev)
int loop_mount(struct lxc_storage *bdev)
{
int ret, loopfd;
char loname[MAXPATHLEN];
@@ -261,7 +262,7 @@ int loop_mount(struct bdev *bdev)
return 0;
}
int loop_umount(struct bdev *bdev)
int loop_umount(struct lxc_storage *bdev)
{
int ret, saved_errno;

27
src/lxc/storage/loop.h
View File

@@ -28,26 +28,21 @@
#include <stdbool.h>
#include <stdint.h>
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/*
* functions associated with a loop bdev struct
*/
int loop_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf);
int loop_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int loop_destroy(struct bdev *orig);
bool loop_detect(const char *path);
int loop_mount(struct bdev *bdev);
int loop_umount(struct bdev *bdev);
extern int loop_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int loop_create(struct lxc_storage *bdev, const char *dest,
const char *n, struct bdev_specs *specs);
extern int loop_destroy(struct lxc_storage *orig);
extern bool loop_detect(const char *path);
extern int loop_mount(struct lxc_storage *bdev);
extern int loop_umount(struct lxc_storage *bdev);
#endif /* __LXC_LOOP_H */

25
src/lxc/storage/lvm.c
View File

@@ -44,7 +44,7 @@
#include <sys/mkdev.h>
#endif
lxc_log_define(lxclvm, lxc);
lxc_log_define(lvm, lxc);
struct lvcreate_args {
const char *size;
@@ -232,7 +232,7 @@ bool lvm_detect(const char *path)
return true;
}
int lvm_mount(struct bdev *bdev)
int lvm_mount(struct lxc_storage *bdev)
{
char *src;
@@ -250,7 +250,7 @@ int lvm_mount(struct bdev *bdev)
return mount_unknown_fs(src, bdev->dest, bdev->mntopts);
}
int lvm_umount(struct bdev *bdev)
int lvm_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "lvm"))
return -22;
@@ -371,9 +371,10 @@ int lvm_snapshot(const char *orig, const char *path, uint64_t size)
return 0;
}
int lvm_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf)
int lvm_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
int len, ret;
const char *vg;
@@ -455,8 +456,8 @@ int lvm_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return 0;
}
bool lvm_create_clone(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize)
bool lvm_create_clone(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize)
{
char *src;
const char *thinpool;
@@ -516,8 +517,8 @@ bool lvm_create_clone(struct lxc_conf *conf, struct bdev *orig,
return true;
}
bool lvm_create_snapshot(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize)
bool lvm_create_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize)
{
int ret;
char *newsrc, *origsrc;
@@ -547,7 +548,7 @@ bool lvm_create_snapshot(struct lxc_conf *conf, struct bdev *orig,
return true;
}
int lvm_destroy(struct bdev *orig)
int lvm_destroy(struct lxc_storage *orig)
{
int ret;
char cmd_output[MAXPATHLEN];
@@ -566,7 +567,7 @@ int lvm_destroy(struct bdev *orig)
return 0;
}
int lvm_create(struct bdev *bdev, const char *dest, const char *n,
int lvm_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *vg, *thinpool, *fstype, *lv = n;

43
src/lxc/storage/lvm.h
View File

@@ -28,34 +28,29 @@
#include <stdbool.h>
#include <stdint.h>
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/*
* Functions associated with an lvm bdev struct.
*/
bool lvm_detect(const char *path);
int lvm_mount(struct bdev *bdev);
int lvm_umount(struct bdev *bdev);
int lvm_compare_lv_attr(const char *path, int pos, const char expected);
int lvm_is_thin_volume(const char *path);
int lvm_is_thin_pool(const char *path);
int lvm_snapshot(const char *orig, const char *path, uint64_t size);
int lvm_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
int lvm_destroy(struct bdev *orig);
int lvm_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
bool lvm_create_clone(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize);
bool lvm_create_snapshot(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize);
extern bool lvm_detect(const char *path);
extern int lvm_mount(struct lxc_storage *bdev);
extern int lvm_umount(struct lxc_storage *bdev);
extern int lvm_compare_lv_attr(const char *path, int pos, const char expected);
extern int lvm_is_thin_volume(const char *path);
extern int lvm_is_thin_pool(const char *path);
extern int lvm_snapshot(const char *orig, const char *path, uint64_t size);
extern int lvm_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int lvm_destroy(struct lxc_storage *orig);
extern int lvm_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern bool lvm_create_clone(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
extern bool lvm_create_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
#endif /* __LXC_LVM_H */

19
src/lxc/storage/nbd.c
View File

@@ -37,7 +37,7 @@
#include "storage_utils.h"
#include "utils.h"
lxc_log_define(lxcnbd, lxc);
lxc_log_define(nbd, lxc);
struct nbd_attach_data {
const char *nbd;
@@ -88,20 +88,21 @@ void detach_nbd_idx(int idx)
nbd_detach(path);
}
int nbd_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
int nbd_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
return -ENOSYS;
}
int nbd_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
int nbd_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
return -ENOSYS;
}
int nbd_destroy(struct bdev *orig)
int nbd_destroy(struct lxc_storage *orig)
{
return -ENOSYS;
}
@@ -114,7 +115,7 @@ bool nbd_detect(const char *path)
return false;
}
int nbd_mount(struct bdev *bdev)
int nbd_mount(struct lxc_storage *bdev)
{
int ret = -1, partition;
char *src;
@@ -154,7 +155,7 @@ int nbd_mount(struct bdev *bdev)
return ret;
}
int nbd_umount(struct bdev *bdev)
int nbd_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "nbd"))
return -22;

34
src/lxc/storage/nbd.h
View File

@@ -28,31 +28,25 @@
#include <stdbool.h>
#include <stdint.h>
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/*
* Functions associated with an nbd bdev struct.
*/
int nbd_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf);
int nbd_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int nbd_destroy(struct bdev *orig);
bool nbd_detect(const char *path);
int nbd_mount(struct bdev *bdev);
int nbd_umount(struct bdev *bdev);
extern int nbd_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int nbd_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern int nbd_destroy(struct lxc_storage *orig);
extern bool nbd_detect(const char *path);
extern int nbd_mount(struct lxc_storage *bdev);
extern int nbd_umount(struct lxc_storage *bdev);
/* helpers */
bool attach_nbd(char *src, struct lxc_conf *conf);
void detach_nbd_idx(int idx);
bool requires_nbd(const char *path);
extern bool attach_nbd(char *src, struct lxc_conf *conf);
extern void detach_nbd_idx(int idx);
extern bool requires_nbd(const char *path);
#endif /* __LXC_NBD_H */

16
src/lxc/storage/overlay.c
View File

@@ -37,19 +37,19 @@
#include "storage_utils.h"
#include "utils.h"
lxc_log_define(lxcoverlay, lxc);
lxc_log_define(overlay, lxc);
static char *ovl_name;
static char *ovl_version[] = {"overlay", "overlayfs"};
static char *ovl_detect_name(void);
static int ovl_do_rsync(struct bdev *orig, struct bdev *new,
static int ovl_do_rsync(struct lxc_storage *orig, struct lxc_storage *new,
struct lxc_conf *conf);
static int ovl_remount_on_enodev(const char *lower, const char *target,
const char *name, unsigned long mountflags,
const void *options);
int ovl_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
int ovl_clonepaths(struct lxc_storage *orig, struct lxc_storage *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
{
@@ -315,7 +315,7 @@ int ovl_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
* "<lxcpath>/<lxcname>/rootfs" to have the created container, while all changes
* after starting the container are written to "<lxcpath>/<lxcname>/delta0".
*/
int ovl_create(struct bdev *bdev, const char *dest, const char *n,
int ovl_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
char *delta;
@@ -378,7 +378,7 @@ int ovl_create(struct bdev *bdev, const char *dest, const char *n,
return 0;
}
int ovl_destroy(struct bdev *orig)
int ovl_destroy(struct lxc_storage *orig)
{
bool ovl;
char *upper = orig->src;
@@ -411,7 +411,7 @@ bool ovl_detect(const char *path)
return false;
}
int ovl_mount(struct bdev *bdev)
int ovl_mount(struct lxc_storage *bdev)
{
char *tmp, *options, *dup, *lower, *upper;
char *options_work, *work, *lastslash;
@@ -586,7 +586,7 @@ int ovl_mount(struct bdev *bdev)
return ret;
}
int ovl_umount(struct bdev *bdev)
int ovl_umount(struct lxc_storage *bdev)
{
int ret;
@@ -878,7 +878,7 @@ static char *ovl_detect_name(void)
return v;
}
static int ovl_do_rsync(struct bdev *orig, struct bdev *new,
static int ovl_do_rsync(struct lxc_storage *orig, struct lxc_storage *new,
struct lxc_conf *conf)
{
int ret = -1;

55
src/lxc/storage/overlay.h
View File

@@ -36,59 +36,50 @@
#include <mntent.h>
#endif
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/* defined in conf.h */
struct lxc_rootfs;
/*
* Functions associated with an overlay bdev struct.
*/
int ovl_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf);
int ovl_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int ovl_destroy(struct bdev *orig);
bool ovl_detect(const char *path);
int ovl_mount(struct bdev *bdev);
int ovl_umount(struct bdev *bdev);
extern int ovl_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int ovl_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern int ovl_destroy(struct lxc_storage *orig);
extern bool ovl_detect(const char *path);
extern int ovl_mount(struct lxc_storage *bdev);
extern int ovl_umount(struct lxc_storage *bdev);
/*
* To be called from lxcapi_clone() in lxccontainer.c: When we clone a container
/* To be called from lxcapi_clone() in lxccontainer.c: When we clone a container
* with overlay lxc.mount.entry entries we need to update absolute paths for
* upper- and workdir. This update is done in two locations:
* lxc_conf->unexpanded_config and lxc_conf->mount_list. Both updates are done
* independent of each other since lxc_conf->mountlist may container more mount
* entries (e.g. from other included files) than lxc_conf->unexpanded_config .
*/
int ovl_update_abs_paths(struct lxc_conf *lxc_conf, const char *lxc_path,
const char *lxc_name, const char *newpath,
const char *newname);
extern int ovl_update_abs_paths(struct lxc_conf *lxc_conf, const char *lxc_path,
const char *lxc_name, const char *newpath,
const char *newname);
/*
* To be called from functions in lxccontainer.c: Get lower directory for
/* To be called from functions in lxccontainer.c: Get lower directory for
* overlay rootfs.
*/
char *ovl_get_lower(const char *rootfs_path);
extern char *ovl_get_lower(const char *rootfs_path);
/*
* Get rootfs path for overlay backed containers. Allocated memory must be freed
/* Get rootfs path for overlay backed containers. Allocated memory must be freed
* by caller.
*/
char *ovl_get_rootfs(const char *rootfs_path, size_t *rootfslen);
extern char *ovl_get_rootfs(const char *rootfs_path, size_t *rootfslen);
/*
* Create upper- and workdirs for overlay mounts.
/* Create upper- and workdirs for overlay mounts.
*/
int ovl_mkdir(const struct mntent *mntent, const struct lxc_rootfs *rootfs,
const char *lxc_name, const char *lxc_path);
extern int ovl_mkdir(const struct mntent *mntent,
const struct lxc_rootfs *rootfs, const char *lxc_name,
const char *lxc_path);
#endif /* __LXC_OVERLAY_H */

17
src/lxc/storage/rbd.c
View File

@@ -34,7 +34,7 @@
#include "storage_utils.h"
#include "utils.h"
lxc_log_define(lxcrbd, lxc);
lxc_log_define(rbd, lxc);
struct rbd_args {
const char *osd_pool_name;
@@ -80,15 +80,16 @@ int rbd_delete_wrapper(void *data)
return -1;
}
int rbd_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
int rbd_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
ERROR("rbd clonepaths not implemented");
return -1;
}
int rbd_create(struct bdev *bdev, const char *dest, const char *n,
int rbd_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *rbdpool, *fstype;
@@ -185,7 +186,7 @@ int rbd_create(struct bdev *bdev, const char *dest, const char *n,
return 0;
}
int rbd_destroy(struct bdev *orig)
int rbd_destroy(struct lxc_storage *orig)
{
int ret;
char *src;
@@ -230,7 +231,7 @@ bool rbd_detect(const char *path)
return false;
}
int rbd_mount(struct bdev *bdev)
int rbd_mount(struct lxc_storage *bdev)
{
char *src;
@@ -252,7 +253,7 @@ int rbd_mount(struct bdev *bdev)
return mount_unknown_fs(src, bdev->dest, bdev->mntopts);
}
int rbd_umount(struct bdev *bdev)
int rbd_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "rbd"))
return -22;

27
src/lxc/storage/rbd.h
View File

@@ -28,26 +28,21 @@
#include <stdbool.h>
#include <stdint.h>
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/*
* Functions associated with an rdb bdev struct.
*/
int rbd_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf);
int rbd_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
int rbd_destroy(struct bdev *orig);
bool rbd_detect(const char *path);
int rbd_mount(struct bdev *bdev);
int rbd_umount(struct bdev *bdev);
extern int rbd_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int rbd_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern int rbd_destroy(struct lxc_storage *orig);
extern bool rbd_detect(const char *path);
extern int rbd_mount(struct lxc_storage *bdev);
extern int rbd_umount(struct lxc_storage *bdev);
#endif /* __LXC_RDB_H */

7
src/lxc/storage/rsync.c
View File

@@ -37,7 +37,7 @@
#include "storage.h"
#include "utils.h"
lxc_log_define(lxcrsync, lxc);
lxc_log_define(rsync, lxc);
/* the bulk of this needs to become a common helper */
int do_rsync(const char *src, const char *dest)
@@ -93,8 +93,7 @@ int rsync_delta_wrapper(void *data)
int rsync_rootfs(struct rsync_data *data)
{
struct bdev *orig = data->orig,
*new = data->new;
struct lxc_storage *orig = data->orig, *new = data->new;
if (unshare(CLONE_NEWNS) < 0) {
SYSERROR("unshare CLONE_NEWNS");
@@ -172,7 +171,7 @@ int lxc_rsync_exec(const char *src, const char *dest)
int lxc_rsync(struct rsync_data *data)
{
int ret;
struct bdev *orig = data->orig, *new = data->new;
struct lxc_storage *orig = data->orig, *new = data->new;
char *dest, *src;
ret = unshare(CLONE_NEWNS);

4
src/lxc/storage/rsync.h
View File

@@ -28,8 +28,8 @@
#include <stdio.h>
struct rsync_data {
struct bdev *orig;
struct bdev *new;
struct lxc_storage *orig;
struct lxc_storage *new;
};
struct rsync_data_char {

176
src/lxc/storage/storage.c
View File

@@ -21,13 +21,6 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* this is all just a first shot for experiment. If we go this route, much
* should change. bdev should be a directory with per-bdev file. Things which
* I'm doing by calling out to userspace should sometimes be done through
* libraries like liblvm2
*/
#define _GNU_SOURCE
#include <dirent.h>
#include <errno.h>
@@ -75,7 +68,7 @@
lxc_log_define(storage, lxc);
/* aufs */
static const struct bdev_ops aufs_ops = {
static const struct lxc_storage_ops aufs_ops = {
.detect = &aufs_detect,
.mount = &aufs_mount,
.umount = &aufs_umount,
@@ -89,7 +82,7 @@ static const struct bdev_ops aufs_ops = {
};
/* btrfs */
static const struct bdev_ops btrfs_ops = {
static const struct lxc_storage_ops btrfs_ops = {
.detect = &btrfs_detect,
.mount = &btrfs_mount,
.umount = &btrfs_umount,
@@ -103,7 +96,7 @@ static const struct bdev_ops btrfs_ops = {
};
/* dir */
static const struct bdev_ops dir_ops = {
static const struct lxc_storage_ops dir_ops = {
.detect = &dir_detect,
.mount = &dir_mount,
.umount = &dir_umount,
@@ -117,7 +110,7 @@ static const struct bdev_ops dir_ops = {
};
/* loop */
static const struct bdev_ops loop_ops = {
static const struct lxc_storage_ops loop_ops = {
.detect = &loop_detect,
.mount = &loop_mount,
.umount = &loop_umount,
@@ -131,7 +124,7 @@ static const struct bdev_ops loop_ops = {
};
/* lvm */
static const struct bdev_ops lvm_ops = {
static const struct lxc_storage_ops lvm_ops = {
.detect = &lvm_detect,
.mount = &lvm_mount,
.umount = &lvm_umount,
@@ -145,7 +138,7 @@ static const struct bdev_ops lvm_ops = {
};
/* nbd */
const struct bdev_ops nbd_ops = {
const struct lxc_storage_ops nbd_ops = {
.detect = &nbd_detect,
.mount = &nbd_mount,
.umount = &nbd_umount,
@@ -159,7 +152,7 @@ const struct bdev_ops nbd_ops = {
};
/* overlay */
static const struct bdev_ops ovl_ops = {
static const struct lxc_storage_ops ovl_ops = {
.detect = &ovl_detect,
.mount = &ovl_mount,
.umount = &ovl_umount,
@@ -173,7 +166,7 @@ static const struct bdev_ops ovl_ops = {
};
/* rbd */
static const struct bdev_ops rbd_ops = {
static const struct lxc_storage_ops rbd_ops = {
.detect = &rbd_detect,
.mount = &rbd_mount,
.umount = &rbd_umount,
@@ -187,7 +180,7 @@ static const struct bdev_ops rbd_ops = {
};
/* zfs */
static const struct bdev_ops zfs_ops = {
static const struct lxc_storage_ops zfs_ops = {
.detect = &zfs_detect,
.mount = &zfs_mount,
.umount = &zfs_umount,
@@ -200,12 +193,12 @@ static const struct bdev_ops zfs_ops = {
.can_backup = true,
};
struct bdev_type {
struct lxc_storage_type {
const char *name;
const struct bdev_ops *ops;
const struct lxc_storage_ops *ops;
};
static const struct bdev_type bdevs[] = {
static const struct lxc_storage_type bdevs[] = {
{ .name = "dir", .ops = &dir_ops, },
{ .name = "zfs", .ops = &zfs_ops, },
{ .name = "lvm", .ops = &lvm_ops, },
@@ -218,9 +211,9 @@ static const struct bdev_type bdevs[] = {
{ .name = "nbd", .ops = &nbd_ops, },
};
static const size_t numbdevs = sizeof(bdevs) / sizeof(struct bdev_type);
static const size_t numbdevs = sizeof(bdevs) / sizeof(struct lxc_storage_type);
static const struct bdev_type *get_bdev_by_name(const char *name)
static const struct lxc_storage_type *get_storage_by_name(const char *name)
{
size_t i, cmplen;
@@ -239,12 +232,13 @@ static const struct bdev_type *get_bdev_by_name(const char *name)
return &bdevs[i];
}
const struct bdev_type *bdev_query(struct lxc_conf *conf, const char *src)
const struct lxc_storage_type *storage_query(struct lxc_conf *conf,
const char *src)
{
size_t i;
const struct bdev_type *bdev;
const struct lxc_storage_type *bdev;
bdev = get_bdev_by_name(src);
bdev = get_storage_by_name(src);
if (bdev)
return bdev;
@@ -259,10 +253,10 @@ const struct bdev_type *bdev_query(struct lxc_conf *conf, const char *src)
return &bdevs[i];
}
struct bdev *bdev_get(const char *type)
struct lxc_storage *storage_get(const char *type)
{
size_t i;
struct bdev *bdev;
struct lxc_storage *bdev;
for (i = 0; i < numbdevs; i++) {
if (strcmp(bdevs[i].name, type) == 0)
@@ -272,60 +266,61 @@ struct bdev *bdev_get(const char *type)
if (i == numbdevs)
return NULL;
bdev = malloc(sizeof(struct bdev));
bdev = malloc(sizeof(struct lxc_storage));
if (!bdev)
return NULL;
memset(bdev, 0, sizeof(struct bdev));
memset(bdev, 0, sizeof(struct lxc_storage));
bdev->ops = bdevs[i].ops;
bdev->type = bdevs[i].name;
return bdev;
}
static struct bdev *do_bdev_create(const char *dest, const char *type,
const char *cname, struct bdev_specs *specs)
static struct lxc_storage *do_storage_create(const char *dest, const char *type,
const char *cname,
struct bdev_specs *specs)
{
struct bdev *bdev;
struct lxc_storage *bdev;
if (!type)
type = "dir";
bdev = bdev_get(type);
bdev = storage_get(type);
if (!bdev)
return NULL;
if (bdev->ops->create(bdev, dest, cname, specs) < 0) {
bdev_put(bdev);
storage_put(bdev);
return NULL;
}
return bdev;
}
bool bdev_can_backup(struct lxc_conf *conf)
bool storage_can_backup(struct lxc_conf *conf)
{
struct bdev *bdev = bdev_init(conf, NULL, NULL, NULL);
struct lxc_storage *bdev = storage_init(conf, NULL, NULL, NULL);
bool ret;
if (!bdev)
return false;
ret = bdev->ops->can_backup;
bdev_put(bdev);
storage_put(bdev);
return ret;
}
/*
* If we're not snaphotting, then bdev_copy becomes a simple case of mount
/* If we're not snaphotting, then storage_copy becomes a simple case of mount
* the original, mount the new, and rsync the contents.
*/
struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
const char *lxcpath, const char *bdevtype, int flags,
const char *bdevdata, uint64_t newsize, int *needs_rdep)
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, int *needs_rdep)
{
struct bdev *orig, *new;
struct lxc_storage *orig, *new;
int ret;
char *src_no_prefix;
bool snap = flags & LXC_CLONE_SNAPSHOT;
@@ -346,7 +341,7 @@ struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
return NULL;
}
orig = bdev_init(c0->lxc_conf, src, NULL, NULL);
orig = storage_init(c0->lxc_conf, src, NULL, NULL);
if (!orig) {
ERROR("Failed to detect storage driver for \"%s\"", src);
return NULL;
@@ -361,14 +356,14 @@ struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
orig->dest = malloc(len);
if (!orig->dest) {
ERROR("Failed to allocate memory");
bdev_put(orig);
storage_put(orig);
return NULL;
}
ret = snprintf(orig->dest, len, "%s/%s/rootfs", oldpath, oldname);
if (ret < 0 || (size_t)ret >= len) {
ERROR("Failed to create string");
bdev_put(orig);
storage_put(orig);
return NULL;
}
@@ -394,7 +389,7 @@ struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
if (am_unpriv() && !unpriv_snap_allowed(orig, bdevtype, snap, maybe_snap)) {
ERROR("Unsupported snapshot type \"%s\" for unprivileged users",
bdevtype ? bdevtype : "(null)");
bdev_put(orig);
storage_put(orig);
return NULL;
}
@@ -415,11 +410,11 @@ struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
bdevtype = orig->type;
/* get new bdev type */
new = bdev_get(bdevtype);
new = storage_get(bdevtype);
if (!new) {
ERROR("Failed to initialize \"%s\" storage driver",
bdevtype ? bdevtype : orig->type);
bdev_put(orig);
storage_put(orig);
return NULL;
}
TRACE("Initialized \"%s\" storage driver", new->type);
@@ -508,84 +503,83 @@ struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
}
}
bdev_put(orig);
storage_put(orig);
return new;
err:
bdev_put(orig);
bdev_put(new);
storage_put(orig);
storage_put(new);
return NULL;
}
/*
* bdev_create:
* Create a backing store for a container.
/* Create a backing store for a container.
* If successful, return a struct bdev *, with the bdev mounted and ready
* for use. Before completing, the caller will need to call the
* umount operation and bdev_put().
* umount operation and storage_put().
* @dest: the mountpoint (i.e. /var/lib/lxc/$name/rootfs)
* @type: the bdevtype (dir, btrfs, zfs, rbd, etc)
* @cname: the container name
* @specs: details about the backing store to create, like fstype
*/
struct bdev *bdev_create(const char *dest, const char *type, const char *cname,
struct bdev_specs *specs)
struct lxc_storage *storage_create(const char *dest, const char *type,
const char *cname, struct bdev_specs *specs)
{
struct bdev *bdev;
struct lxc_storage *bdev;
char *best_options[] = {"btrfs", "zfs", "lvm", "dir", "rbd", NULL};
if (!type)
return do_bdev_create(dest, "dir", cname, specs);
return do_storage_create(dest, "dir", cname, specs);
if (strcmp(type, "best") == 0) {
int i;
// try for the best backing store type, according to our
// opinionated preferences
/* Try for the best backing store type, according to our
* opinionated preferences.
*/
for (i = 0; best_options[i]; i++) {
if ((bdev = do_bdev_create(dest, best_options[i], cname,
specs)))
bdev = do_storage_create(dest, best_options[i], cname,
specs);
if (bdev)
return bdev;
}
return NULL; // 'dir' should never fail, so this shouldn't
// happen
return NULL;
}
// -B lvm,dir
/* -B lvm,dir */
if (strchr(type, ',') != NULL) {
char *dup = alloca(strlen(type) + 1), *saveptr = NULL, *token;
strcpy(dup, type);
for (token = strtok_r(dup, ",", &saveptr); token;
token = strtok_r(NULL, ",", &saveptr)) {
if ((bdev = do_bdev_create(dest, token, cname, specs)))
if ((bdev = do_storage_create(dest, token, cname, specs)))
return bdev;
}
}
return do_bdev_create(dest, type, cname, specs);
return do_storage_create(dest, type, cname, specs);
}
bool bdev_destroy(struct lxc_conf *conf)
bool storage_destroy(struct lxc_conf *conf)
{
struct bdev *r;
struct lxc_storage *r;
bool ret = false;
r = bdev_init(conf, conf->rootfs.path, conf->rootfs.mount, NULL);
r = storage_init(conf, conf->rootfs.path, conf->rootfs.mount, NULL);
if (!r)
return ret;
if (r->ops->destroy(r) == 0)
ret = true;
bdev_put(r);
storage_put(r);
return ret;
}
struct bdev *bdev_init(struct lxc_conf *conf, const char *src, const char *dst,
const char *mntopts)
struct lxc_storage *storage_init(struct lxc_conf *conf, const char *src,
const char *dst, const char *mntopts)
{
struct bdev *bdev;
const struct bdev_type *q;
struct lxc_storage *bdev;
const struct lxc_storage_type *q;
if (!src)
src = conf->rootfs.path;
@@ -593,15 +587,15 @@ struct bdev *bdev_init(struct lxc_conf *conf, const char *src, const char *dst,
if (!src)
return NULL;
q = bdev_query(conf, src);
q = storage_query(conf, src);
if (!q)
return NULL;
bdev = malloc(sizeof(struct bdev));
bdev = malloc(sizeof(struct lxc_storage));
if (!bdev)
return NULL;
memset(bdev, 0, sizeof(struct bdev));
memset(bdev, 0, sizeof(struct lxc_storage));
bdev->ops = q->ops;
bdev->type = q->name;
if (mntopts)
@@ -616,19 +610,23 @@ struct bdev *bdev_init(struct lxc_conf *conf, const char *src, const char *dst,
return bdev;
}
bool bdev_is_dir(struct lxc_conf *conf, const char *path)
bool storage_is_dir(struct lxc_conf *conf, const char *path)
{
struct bdev *orig = bdev_init(conf, path, NULL, NULL);
bool ret = false;
struct lxc_storage *orig;
bool bret = false;
orig = storage_init(conf, path, NULL, NULL);
if (!orig)
return ret;
return bret;
if (strcmp(orig->type, "dir") == 0)
ret = true;
bdev_put(orig);
return ret;
bret = true;
storage_put(orig);
return bret;
}
void bdev_put(struct bdev *bdev)
void storage_put(struct lxc_storage *bdev)
{
free(bdev->mntopts);
free(bdev->src);
@@ -638,7 +636,7 @@ void bdev_put(struct bdev *bdev)
bool rootfs_is_blockdev(struct lxc_conf *conf)
{
const struct bdev_type *q;
const struct lxc_storage_type *q;
struct stat st;
int ret;
@@ -650,7 +648,7 @@ bool rootfs_is_blockdev(struct lxc_conf *conf)
if (ret == 0 && S_ISBLK(st.st_mode))
return true;
q = bdev_query(conf, conf->rootfs.path);
q = storage_query(conf, conf->rootfs.path);
if (!q)
return false;

80
src/lxc/storage/storage.h
View File

@@ -57,39 +57,37 @@
#define DEFAULT_FS_SIZE 1073741824
#define DEFAULT_FSTYPE "ext3"
struct bdev;
struct lxc_storage;
struct bdev_ops {
struct lxc_storage_ops {
/* detect whether path is of this bdev type */
bool (*detect)(const char *path);
// mount requires src and dest to be set.
int (*mount)(struct bdev *bdev);
int (*umount)(struct bdev *bdev);
int (*destroy)(struct bdev *bdev);
int (*create)(struct bdev *bdev, const char *dest, const char *n,
int (*mount)(struct lxc_storage *bdev);
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);
/* given original mount, rename the paths for cloned container */
int (*clone_paths)(struct bdev *orig, struct bdev *new,
int (*clone_paths)(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
bool (*copy)(struct lxc_conf *conf, struct bdev *orig, struct bdev *new,
uint64_t newsize);
bool (*snapshot)(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize);
bool (*copy)(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
bool (*snapshot)(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
bool can_snapshot;
bool can_backup;
};
/*
* When lxc-start is mounting a rootfs, then src will be the "lxc.rootfs" value,
* dest will be mount dir (i.e. $libdir/lxc) When clone or create is doing so,
* then dest will be $lxcpath/$lxcname/rootfs, since we may need to rsync from
* one to the other.
* data is so far unused.
/* When lxc is mounting a rootfs, then src will be the "lxc.rootfs.path" value,
* dest will be the mount dir (i.e. "<libdir>/lxc") When clone or create is
* doing so, then dest will be "<lxcpath>/<lxcname>/rootfs", since we may need
* to rsync from one to the other.
*/
struct bdev {
const struct bdev_ops *ops;
struct lxc_storage {
const struct lxc_storage_ops *ops;
const char *type;
char *src;
char *dest;
@@ -101,33 +99,35 @@ struct bdev {
int nbd_idx;
};
bool bdev_is_dir(struct lxc_conf *conf, const char *path);
bool bdev_can_backup(struct lxc_conf *conf);
extern bool storage_is_dir(struct lxc_conf *conf, const char *path);
extern bool storage_can_backup(struct lxc_conf *conf);
/*
* Instantiate a bdev 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.
/* 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.
*
* Optionally, src can 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.
* 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.
*/
struct bdev *bdev_init(struct lxc_conf *conf, const char *src, const char *dst,
const char *data);
extern struct lxc_storage *storage_init(struct lxc_conf *conf, const char *src,
const char *dst, const char *data);
struct bdev *bdev_copy(struct lxc_container *c0, const char *cname,
const char *lxcpath, const char *bdevtype, int flags,
const char *bdevdata, uint64_t newsize, int *needs_rdep);
struct bdev *bdev_create(const char *dest, const char *type, const char *cname,
struct bdev_specs *specs);
void bdev_put(struct bdev *bdev);
bool bdev_destroy(struct lxc_conf *conf);
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,
int *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() */
int bdev_destroy_wrapper(void *data);
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);

18
src/lxc/storage/storage_utils.c
View File

@@ -126,7 +126,7 @@ bool attach_block_device(struct lxc_conf *conf)
/*
* return block size of dev->src in units of bytes
*/
int blk_getsize(struct bdev *bdev, uint64_t *size)
int blk_getsize(struct lxc_storage *bdev, uint64_t *size)
{
int fd, ret;
char *src;
@@ -148,14 +148,14 @@ void detach_block_device(struct lxc_conf *conf)
}
/*
* Given a bdev (presumably blockdev-based), detect the fstype
* Given a lxc_storage (presumably blockdev-based), detect the fstype
* by trying mounting (in a private mntns) it.
* @bdev: bdev to investigate
* @lxc_storage: bdev to investigate
* @type: preallocated char* in which to write the fstype
* @len: length of passed in char*
* Returns length of fstype, of -1 on error
*/
int detect_fs(struct bdev *bdev, char *type, int len)
int detect_fs(struct lxc_storage *bdev, char *type, int len)
{
int p[2], ret;
size_t linelen;
@@ -280,7 +280,7 @@ int do_mkfs_exec_wrapper(void *args)
* This will return 1 for physical disks, qemu-nbd, loop, etc right now only lvm
* is a block device.
*/
int is_blktype(struct bdev *b)
int is_blktype(struct lxc_storage *b)
{
if (strcmp(b->type, "lvm") == 0)
return 1;
@@ -406,7 +406,7 @@ char *linkderef(char *path, char *dest)
/*
* is an unprivileged user allowed to make this kind of snapshot
*/
bool unpriv_snap_allowed(struct bdev *b, const char *t, bool snap,
bool unpriv_snap_allowed(struct lxc_storage *b, const char *t, bool snap,
bool maybesnap)
{
if (!t) {
@@ -437,7 +437,7 @@ bool unpriv_snap_allowed(struct bdev *b, const char *t, bool snap,
return false;
}
bool is_valid_bdev_type(const char *type)
bool is_valid_storage_type(const char *type)
{
if (strcmp(type, "dir") == 0 ||
strcmp(type, "btrfs") == 0 ||
@@ -453,7 +453,7 @@ bool is_valid_bdev_type(const char *type)
return false;
}
int bdev_destroy_wrapper(void *data)
int storage_destroy_wrapper(void *data)
{
struct lxc_conf *conf = data;
@@ -470,7 +470,7 @@ int bdev_destroy_wrapper(void *data)
return -1;
}
if (!bdev_destroy(conf))
if (!storage_destroy(conf))
return -1;
return 0;

16
src/lxc/storage/storage_utils.h
View File

@@ -31,24 +31,24 @@
#include "conf.h"
struct bdev;
struct lxc_storage;
struct lxc_conf;
extern char *dir_new_path(char *src, const char *oldname, const char *name,
const char *oldpath, const char *lxcpath);
extern bool attach_block_device(struct lxc_conf *conf);
extern void detach_block_device(struct lxc_conf *conf);
extern int blk_getsize(struct bdev *bdev, uint64_t *size);
extern int detect_fs(struct bdev *bdev, char *type, int len);
extern int blk_getsize(struct lxc_storage *bdev, uint64_t *size);
extern int detect_fs(struct lxc_storage *bdev, char *type, int len);
extern int do_mkfs_exec_wrapper(void *args);
extern int is_blktype(struct bdev *b);
extern int is_blktype(struct lxc_storage *b);
extern int mount_unknown_fs(const char *rootfs, const char *target,
const char *options);
extern int find_fstype_cb(char *buffer, void *data);
extern char *linkderef(char *path, char *dest);
extern bool unpriv_snap_allowed(struct bdev *b, const char *t, bool snap,
extern bool unpriv_snap_allowed(struct lxc_storage *b, const char *t, bool snap,
bool maybesnap);
extern bool is_valid_bdev_type(const char *type);
extern int bdev_destroy_wrapper(void *data);
extern bool is_valid_storage_type(const char *type);
extern int storage_destroy_wrapper(void *data);
#endif // __LXC_STORAGE_UTILS_H
#endif /* __LXC_STORAGE_UTILS_H */

25
src/lxc/storage/zfs.c
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@@ -38,7 +38,7 @@
#include "utils.h"
#include "zfs.h"
lxc_log_define(lxczfs, lxc);
lxc_log_define(zfs, lxc);
struct zfs_args {
const char *dataset;
@@ -176,7 +176,7 @@ bool zfs_detect(const char *path)
return true;
}
int zfs_mount(struct bdev *bdev)
int zfs_mount(struct lxc_storage *bdev)
{
int ret;
size_t oldlen, newlen, totallen;
@@ -261,7 +261,7 @@ int zfs_mount(struct bdev *bdev)
return 0;
}
int zfs_umount(struct bdev *bdev)
int zfs_umount(struct lxc_storage *bdev)
{
int ret;
@@ -280,8 +280,8 @@ int zfs_umount(struct bdev *bdev)
return ret;
}
bool zfs_copy(struct lxc_conf *conf, struct bdev *orig, struct bdev *new,
uint64_t newsize)
bool zfs_copy(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize)
{
int ret;
char cmd_output[MAXPATHLEN], option[MAXPATHLEN];
@@ -337,8 +337,8 @@ bool zfs_copy(struct lxc_conf *conf, struct bdev *orig, struct bdev *new,
}
/* create read-only snapshot and create a clone from it */
bool zfs_snapshot(struct lxc_conf *conf, struct bdev *orig, struct bdev *new,
uint64_t newsize)
bool zfs_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize)
{
int ret;
size_t snapshot_len, len;
@@ -442,9 +442,10 @@ bool zfs_snapshot(struct lxc_conf *conf, struct bdev *orig, struct bdev *new,
return true;
}
int zfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
const char *cname, const char *oldpath, const char *lxcpath,
int snap, uint64_t newsize, struct lxc_conf *conf)
int zfs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname, const char *oldpath,
const char *lxcpath, int snap, uint64_t newsize,
struct lxc_conf *conf)
{
char *dataset, *orig_src, *tmp;
int ret;
@@ -572,7 +573,7 @@ int zfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return 0;
}
int zfs_destroy(struct bdev *orig)
int zfs_destroy(struct lxc_storage *orig)
{
int ret;
char *dataset, *src, *tmp;
@@ -700,7 +701,7 @@ int zfs_destroy(struct bdev *orig)
return ret;
}
int zfs_create(struct bdev *bdev, const char *dest, const char *n,
int zfs_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *zfsroot;

20
src/lxc/storage/zfs.h
View File

@@ -29,26 +29,26 @@
#include <stdio.h>
#include <stdint.h>
struct bdev;
struct lxc_storage;
struct bdev_specs;
struct lxc_conf;
extern int zfs_clonepaths(struct bdev *orig, struct bdev *new,
extern int zfs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
const char *oldname, const char *cname,
const char *oldpath, const char *lxcpath, int snap,
uint64_t newsize, struct lxc_conf *conf);
extern int zfs_create(struct bdev *bdev, const char *dest, const char *n,
extern int zfs_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern int zfs_destroy(struct bdev *orig);
extern int zfs_destroy(struct lxc_storage *orig);
extern bool zfs_detect(const char *path);
extern int zfs_mount(struct bdev *bdev);
extern int zfs_umount(struct bdev *bdev);
extern int zfs_mount(struct lxc_storage *bdev);
extern int zfs_umount(struct lxc_storage *bdev);
extern bool zfs_copy(struct lxc_conf *conf, struct bdev *orig, struct bdev *new,
uint64_t newsize);
extern bool zfs_snapshot(struct lxc_conf *conf, struct bdev *orig,
struct bdev *new, uint64_t newsize);
extern bool zfs_copy(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
extern bool zfs_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
struct lxc_storage *new, uint64_t newsize);
#endif /* __LXC_ZFS_H */

2
src/lxc/tools/lxc_create.c
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@@ -251,7 +251,7 @@ int main(int argc, char *argv[])
// Final check whether the user gave use a valid bdev type.
if (strcmp(my_args.bdevtype, "best") &&
strcmp(my_args.bdevtype, "_unset") &&
!is_valid_bdev_type(my_args.bdevtype)) {
!is_valid_storage_type(my_args.bdevtype)) {
fprintf(stderr, "%s is not a valid backing storage type.\n", my_args.bdevtype);
exit(EXIT_FAILURE);
}