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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 2014 Lennart Poettering
***/
#include <stdbool.h>
#include <stdint.h>
#include "hashmap.h"
#include "lockfile-util.h"
#include "macro.h"
#include "path-util.h"
#include "string-util.h"
#include "time-util.h"
typedef enum ImageClass {
IMAGE_MACHINE,
IMAGE_PORTABLE,
_IMAGE_CLASS_MAX,
_IMAGE_CLASS_INVALID = -1
} ImageClass;
typedef enum ImageType {
IMAGE_DIRECTORY,
IMAGE_SUBVOLUME,
IMAGE_RAW,
IMAGE_BLOCK,
_IMAGE_TYPE_MAX,
_IMAGE_TYPE_INVALID = -1
} ImageType;
typedef struct Image {
unsigned n_ref;
ImageType type;
char *name;
char *path;
bool read_only;
usec_t crtime;
usec_t mtime;
uint64_t usage;
uint64_t usage_exclusive;
uint64_t limit;
uint64_t limit_exclusive;
char *hostname;
sd_id128_t machine_id;
char **machine_info;
char **os_release;
bool metadata_valid:1;
bool discoverable:1; /* true if we know for sure that image_find() would find the image given just the short name */
void *userdata;
} Image;
Image *image_unref(Image *i);
Image *image_ref(Image *i);
static inline Hashmap* image_hashmap_free(Hashmap *map) {
return hashmap_free_with_destructor(map, image_unref);
}
DEFINE_TRIVIAL_CLEANUP_FUNC(Image*, image_unref);
DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, image_hashmap_free);
int image_find(ImageClass class, const char *name, Image **ret);
int image_from_path(const char *path, Image **ret);
int image_find_harder(ImageClass class, const char *name_or_path, Image **ret);
int image_discover(ImageClass class, Hashmap *map);
int image_remove(Image *i);
int image_rename(Image *i, const char *new_name);
int image_clone(Image *i, const char *new_name, bool read_only);
int image_read_only(Image *i, bool b);
const char* image_type_to_string(ImageType t) _const_;
ImageType image_type_from_string(const char *s) _pure_;
bool image_name_is_valid(const char *s) _pure_;
int image_path_lock(const char *path, int operation, LockFile *global, LockFile *local);
int image_name_lock(const char *name, int operation, LockFile *ret);
int image_set_limit(Image *i, uint64_t referenced_max);
int image_read_metadata(Image *i);
bool image_in_search_path(ImageClass class, const char *image);
static inline bool IMAGE_IS_HIDDEN(const struct Image *i) {
assert(i);
return i->name && i->name[0] == '.';
}
static inline bool IMAGE_IS_VENDOR(const struct Image *i) {
assert(i);
return i->path && path_startswith(i->path, "/usr");
}
static inline bool IMAGE_IS_HOST(const struct Image *i) {
assert(i);
if (i->name && streq(i->name, ".host"))
return true;
if (i->path && path_equal(i->path, "/"))
return true;
return false;
}
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