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Unverified Commit 0e8e6386 by Christian Brauner Committed by Stéphane Graber
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tree-wide: struct bdev -> struct lxc_storage

Signed-off-by: 's avatarChristian Brauner <christian.brauner@ubuntu.com>
parent d3459849
Showing with 339 additions and 382 deletions
src/lxc/conf.c
......@@ -1112,7 +1112,7 @@ 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;
......@@ -1130,7 +1130,7 @@ 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,
......@@ -1139,7 +1139,7 @@ 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,
......
src/lxc/confile.c
......@@ -2274,7 +2274,7 @@ static int set_config_rootfs_backend(const char *key, const char *value,
return 0;
}
if (!is_valid_bdev_type(value)) {
if (!is_valid_storage_type(value)) {
ERROR("Bad rootfs.backend: '%s'", value);
return -1;
}
......
src/lxc/lxccontainer.c
......@@ -1152,16 +1152,16 @@ 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 */
......@@ -1179,7 +1179,7 @@ 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;
......@@ -1195,7 +1195,7 @@ 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;
}
}
......@@ -1227,7 +1227,7 @@ 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;
......@@ -1237,7 +1237,7 @@ 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);
......@@ -1653,12 +1653,13 @@ 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 */
......@@ -1667,9 +1668,9 @@ 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;
......@@ -2508,12 +2509,12 @@ 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)
......@@ -3043,14 +3044,14 @@ 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;
......@@ -3063,7 +3064,7 @@ static int copy_storage(struct lxc_container *c0, struct lxc_container *c,
/* Set new bdev type. */
free(c->lxc_conf->rootfs.bdev_type);
c->lxc_conf->rootfs.bdev_type = strdup(bdev->type);
bdev_put(bdev);
storage_put(bdev);
if (!c->lxc_conf->rootfs.path) {
ERROR("Out of memory while setting storage path.");
......@@ -3118,7 +3119,7 @@ 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;
......@@ -3138,13 +3139,13 @@ 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()) {
......@@ -3154,7 +3155,7 @@ 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
......@@ -3182,14 +3183,14 @@ 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;
......@@ -3205,9 +3206,9 @@ 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;
}
......@@ -3440,7 +3441,7 @@ 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)
......@@ -3450,14 +3451,14 @@ 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;
......@@ -3569,7 +3570,7 @@ 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;
......@@ -3595,7 +3596,7 @@ 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 overlayfs clone first, snapshot that");
......@@ -3789,7 +3790,7 @@ 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)
......@@ -3800,7 +3801,7 @@ 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;
......@@ -3810,7 +3811,7 @@ 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?
......@@ -3819,7 +3820,7 @@ 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;
}
......@@ -3827,7 +3828,7 @@ 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;
}
}
......@@ -3836,7 +3837,7 @@ 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)
......
src/lxc/start.c
......@@ -1737,10 +1737,12 @@ 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);
}
src/lxc/storage/aufs.c
......@@ -36,15 +36,16 @@
#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");
......@@ -174,7 +175,7 @@ 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;
......@@ -216,7 +217,7 @@ 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;
......@@ -236,7 +237,7 @@ int aufs_detect(const char *path)
return 0;
}
int aufs_mount(struct bdev *bdev)
int aufs_mount(struct lxc_storage *bdev)
{
char *tmp, *options, *dup, *lower, *upper;
int len;
......@@ -308,7 +309,7 @@ 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;
......
src/lxc/storage/aufs.h
......@@ -33,34 +33,27 @@
#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);
int 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);
......
src/lxc/storage/btrfs.c
......@@ -41,7 +41,7 @@
#include "storage.h"
#include "utils.h"
lxc_log_define(lxcbtrfs, lxc);
lxc_log_define(btrfs, lxc);
/* defined in lxccontainer.c: needs to become common helper */
extern char *dir_new_path(char *src, const char *oldname, const char *name,
......@@ -188,7 +188,7 @@ int btrfs_detect(const char *path)
return 0;
}
int btrfs_mount(struct bdev *bdev)
int btrfs_mount(struct lxc_storage *bdev)
{
unsigned long mntflags;
char *mntdata;
......@@ -209,7 +209,7 @@ 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;
......@@ -341,7 +341,7 @@ out:
return ret;
}
static int btrfs_snapshot_wrapper(void *data)
int btrfs_snapshot_wrapper(void *data)
{
struct rsync_data_char *arg = data;
if (setgid(0) < 0) {
......@@ -357,10 +357,10 @@ static int btrfs_snapshot_wrapper(void *data)
return btrfs_snapshot(arg->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)
{
if (!orig->dest || !orig->src)
return -1;
......@@ -383,7 +383,6 @@ int btrfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
// in case rootfs is in custom path, reuse it
if ((new->src = dir_new_path(orig->src, oldname, cname, oldpath, lxcpath)) == NULL)
return -1;
}
if ((new->dest = strdup(new->src)) == NULL)
......@@ -734,12 +733,12 @@ 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)
{
return btrfs_recursive_destroy(orig->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)
{
bdev->src = strdup(dest);
......
src/lxc/storage/btrfs.h
......@@ -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 {
......@@ -387,30 +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);
int btrfs_detect(const char *path);
int btrfs_mount(struct bdev *bdev);
int btrfs_umount(struct bdev *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);
#endif // __LXC_BTRFS_H
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 int btrfs_detect(const char *path);
extern int btrfs_mount(struct lxc_storage *bdev);
extern int btrfs_umount(struct lxc_storage *bdev);
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 */
src/lxc/storage/dir.c
......@@ -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)
{
int len, ret;
......@@ -62,8 +62,8 @@ 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,
struct bdev_specs *specs)
int dir_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
if (specs && specs->dir)
bdev->src = strdup(specs->dir);
......@@ -87,7 +87,7 @@ 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)
{
if (lxc_rmdir_onedev(orig->src, NULL) < 0)
return -1;
......@@ -103,7 +103,7 @@ int dir_detect(const char *path)
return 0;
}
int dir_mount(struct bdev *bdev)
int dir_mount(struct lxc_storage *bdev)
{
unsigned long mntflags;
char *mntdata;
......@@ -132,7 +132,7 @@ 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;
......
src/lxc/storage/dir.h
......@@ -27,26 +27,21 @@
#define _GNU_SOURCE
#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);
int 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 int 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 */
src/lxc/storage/loop.c
......@@ -37,7 +37,7 @@
#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);
......@@ -45,9 +45,10 @@ 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)
{
char fstype[100];
uint64_t size = newsize;
......@@ -104,7 +105,7 @@ int loop_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return do_loop_create(srcdev, size, fstype);
}
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;
......@@ -152,8 +153,7 @@ int loop_create(struct bdev *bdev, const char *dest, const char *n,
return do_loop_create(srcdev, sz, fstype);
}
int loop_destroy(struct bdev *orig)
{
int loop_destroy(struct lxc_storage *orig) {
return unlink(orig->src + 5);
}
......@@ -175,7 +175,7 @@ int loop_detect(const char *path)
return 0;
}
int loop_mount(struct bdev *bdev)
int loop_mount(struct lxc_storage *bdev)
{
int ret, loopfd;
char loname[MAXPATHLEN];
......@@ -208,7 +208,7 @@ int loop_mount(struct bdev *bdev)
return ret;
}
int loop_umount(struct bdev *bdev)
int loop_umount(struct lxc_storage *bdev)
{
int ret;
......
src/lxc/storage/loop.h
......@@ -27,26 +27,21 @@
#define _GNU_SOURCE
#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);
int 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 int 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 */
src/lxc/storage/lvm.c
......@@ -44,7 +44,7 @@
# include <sys/mkdev.h>
#endif
lxc_log_define(lxclvm, lxc);
lxc_log_define(lvm, lxc);
extern char *dir_new_path(char *src, const char *oldname, const char *name,
const char *oldpath, const char *lxcpath);
......@@ -160,7 +160,7 @@ int lvm_detect(const char *path)
return 1;
}
int lvm_mount(struct bdev *bdev)
int lvm_mount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "lvm"))
return -22;
......@@ -171,7 +171,7 @@ int lvm_mount(struct bdev *bdev)
return mount_unknown_fs(bdev->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;
......@@ -276,9 +276,10 @@ int lvm_snapshot(const char *orig, const char *path, uint64_t size)
exit(EXIT_FAILURE);
}
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)
{
char fstype[100];
uint64_t size = newsize;
......@@ -364,7 +365,7 @@ int lvm_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return 0;
}
int lvm_destroy(struct bdev *orig)
int lvm_destroy(struct lxc_storage *orig)
{
pid_t pid;
......@@ -378,8 +379,8 @@ int lvm_destroy(struct bdev *orig)
return wait_for_pid(pid);
}
int lvm_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
int lvm_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *vg, *thinpool, *fstype, *lv = n;
uint64_t sz;
......
src/lxc/storage/lvm.h
......@@ -27,30 +27,29 @@
#define _GNU_SOURCE
#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.
*/
int 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);
extern int 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 */
src/lxc/storage/nbd.c
......@@ -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;
}
......@@ -113,7 +114,7 @@ int nbd_detect(const char *path)
return 0;
}
int nbd_mount(struct bdev *bdev)
int nbd_mount(struct lxc_storage *bdev)
{
int ret = -1, partition;
char path[50];
......@@ -149,7 +150,7 @@ int nbd_mount(struct bdev *bdev)
return ret;
}
int nbd_umount(struct bdev *bdev)
int nbd_umount(struct lxc_storage *bdev)
{
int ret;
......
src/lxc/storage/nbd.h
......@@ -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);
int nbd_detect(const char *path);
int nbd_mount(struct bdev *bdev);
int nbd_umount(struct bdev *bdev);
/* helpers */
bool attach_nbd(char *src, struct lxc_conf *conf);
void detach_nbd_idx(int idx);
bool requires_nbd(const char *path);
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 int nbd_detect(const char *path);
extern int nbd_mount(struct lxc_storage *bdev);
extern int nbd_umount(struct lxc_storage *bdev);
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 */
src/lxc/storage/overlay.c
......@@ -37,7 +37,7 @@
#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"};
......@@ -47,7 +47,7 @@ extern char *dir_new_path(char *src, const char *oldname, const char *name,
const char *oldpath, const char *lxcpath);
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_rsync(struct rsync_data *data);
static int ovl_rsync_wrapper(void *data);
......@@ -55,7 +55,7 @@ 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)
{
......@@ -242,8 +242,8 @@ int ovl_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
* changes after starting the container are written to
* $lxcpath/$lxcname/delta0
*/
int ovl_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
int ovl_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
char *delta;
int ret, len = strlen(dest), newlen;
......@@ -284,7 +284,7 @@ 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)
{
char *upper;
......@@ -312,7 +312,7 @@ char *ovl_getlower(char *p)
return p;
}
int ovl_mount(struct bdev *bdev)
int ovl_mount(struct lxc_storage *bdev)
{
char *tmp, *options, *dup, *lower, *upper;
char *options_work, *work, *lastslash;
......@@ -439,7 +439,7 @@ int ovl_mount(struct bdev *bdev)
return ret;
}
int ovl_umount(struct bdev *bdev)
int ovl_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "overlayfs"))
return -22;
......@@ -743,7 +743,8 @@ static char *ovl_detect_name(void)
return v;
}
static int ovl_do_rsync(struct bdev *orig, struct bdev *new, struct lxc_conf *conf)
static int ovl_do_rsync(struct lxc_storage *orig, struct lxc_storage *new,
struct lxc_conf *conf)
{
int ret = -1;
struct rsync_data rdata;
......
src/lxc/storage/overlay.h
......@@ -35,59 +35,50 @@
#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);
int 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 int 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_getlower(char *p);
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 */
src/lxc/storage/rbd.c
......@@ -34,9 +34,9 @@
#include "storage_utils.h"
#include "utils.h"
lxc_log_define(lxcrbd, lxc);
lxc_log_define(rbd, lxc);
int rbd_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
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)
{
......@@ -44,8 +44,8 @@ int rbd_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
return -1;
}
int rbd_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
int rbd_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *rbdpool, *rbdname = n, *fstype;
uint64_t size;
......@@ -125,7 +125,7 @@ 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)
{
pid_t pid;
char *rbdfullname;
......@@ -160,7 +160,7 @@ int rbd_detect(const char *path)
return 0;
}
int rbd_mount(struct bdev *bdev)
int rbd_mount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "rbd"))
return -22;
......@@ -176,7 +176,7 @@ int rbd_mount(struct bdev *bdev)
return mount_unknown_fs(bdev->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;
......
src/lxc/storage/rbd.h
......@@ -27,26 +27,21 @@
#define _GNU_SOURCE
#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);
int 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 int 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 */
src/lxc/storage/rsync.c
......@@ -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");
......@@ -139,4 +138,3 @@ int rsync_rootfs_wrapper(void *data)
struct rsync_data *arg = data;
return rsync_rootfs(arg);
}
src/lxc/storage/rsync.h
......@@ -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 {
......
src/lxc/storage/storage.h
......@@ -57,19 +57,19 @@
#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 */
int (*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);
......@@ -77,15 +77,13 @@ struct bdev_ops {
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;
......@@ -97,33 +95,35 @@ 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);
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_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,
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);
#endif // __LXC_STORAGE_H
src/lxc/storage/storage_utils.c
......@@ -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 *path = bdev->src;
......@@ -150,14 +150,14 @@ 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;
......@@ -285,7 +285,7 @@ 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;
......@@ -411,7 +411,7 @@ 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) {
......@@ -440,7 +440,7 @@ 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 ||
......@@ -456,7 +456,7 @@ 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;
......@@ -473,7 +473,7 @@ int bdev_destroy_wrapper(void *data)
return -1;
}
if (!bdev_destroy(conf))
if (!storage_destroy(conf))
return -1;
return 0;
......
src/lxc/storage/storage_utils.h
......@@ -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 */
src/lxc/storage/zfs.c
......@@ -35,7 +35,7 @@
#include "utils.h"
#include "zfs.h"
lxc_log_define(lxczfs, lxc);
lxc_log_define(zfs, lxc);
/*
* zfs ops:
......@@ -83,7 +83,7 @@ int zfs_detect(const char *path)
return found;
}
int zfs_mount(struct bdev *bdev)
int zfs_mount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "zfs"))
return -22;
......@@ -104,7 +104,7 @@ int zfs_mount(struct bdev *bdev)
return ret;
}
int zfs_umount(struct bdev *bdev)
int zfs_umount(struct lxc_storage *bdev)
{
if (strcmp(bdev->type, "zfs"))
return -22;
......@@ -201,7 +201,7 @@ int zfs_clone(const char *opath, const char *npath, const char *oname,
}
}
int zfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
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)
{
......@@ -235,7 +235,7 @@ int zfs_clonepaths(struct bdev *orig, struct bdev *new, const char *oldname,
* snapshot it was based on, so that we don't hold the original
* container busy.
*/
int zfs_destroy(struct bdev *orig)
int zfs_destroy(struct lxc_storage *orig)
{
pid_t pid;
char output[MAXPATHLEN];
......@@ -260,8 +260,8 @@ int zfs_destroy(struct bdev *orig)
exit(EXIT_FAILURE);
}
int zfs_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
int zfs_create(struct lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs)
{
const char *zfsroot;
char option[MAXPATHLEN];
......
src/lxc/storage/zfs.h
......@@ -28,8 +28,7 @@
#include <stdio.h>
#include <stdint.h>
/* defined in bdev.h */
struct bdev;
struct lxc_storage;
/* defined in lxccontainer.h */
struct bdev_specs;
......@@ -37,25 +36,20 @@ struct bdev_specs;
/* defined conf.h */
struct lxc_conf;
/*
* Functions associated with an zfs bdev struct.
*/
int zfs_clone(const char *opath, const char *npath, const char *oname,
const char *nname, const char *lxcpath, int snapshot);
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_create(struct bdev *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
/*
* TODO: detect whether this was a clone, and if so then also delete the
* snapshot it was based on, so that we don't hold the original
* container busy.
*/
int zfs_destroy(struct bdev *orig);
int zfs_detect(const char *path);
int zfs_list_entry(const char *path, char *output, size_t inlen);
int zfs_mount(struct bdev *bdev);
int zfs_umount(struct bdev *bdev);
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 lxc_storage *bdev, const char *dest, const char *n,
struct bdev_specs *specs);
extern int zfs_destroy(struct lxc_storage *orig);
extern int zfs_detect(const char *path);
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 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 */
src/lxc/tools/lxc_create.c
......@@ -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);
}
......
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