112 lines
3.6 KiB
C
112 lines
3.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <inttypes.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include "gpt.h"
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#include "hashmap.h"
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#include "macro.h"
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/* Forward declare this type so that the headers below can use it */
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typedef struct Resource Resource;
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#include "sysupdate-instance.h"
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typedef enum ResourceType {
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RESOURCE_URL_FILE,
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RESOURCE_URL_TAR,
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RESOURCE_TAR,
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RESOURCE_PARTITION,
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RESOURCE_REGULAR_FILE,
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RESOURCE_DIRECTORY,
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RESOURCE_SUBVOLUME,
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_RESOURCE_TYPE_MAX,
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_RESOURCE_TYPE_INVALID = -EINVAL,
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} ResourceType;
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static inline bool RESOURCE_IS_SOURCE(ResourceType t) {
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return IN_SET(t,
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RESOURCE_URL_FILE,
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RESOURCE_URL_TAR,
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RESOURCE_TAR,
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RESOURCE_REGULAR_FILE,
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RESOURCE_DIRECTORY,
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RESOURCE_SUBVOLUME);
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}
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static inline bool RESOURCE_IS_TARGET(ResourceType t) {
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return IN_SET(t,
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RESOURCE_PARTITION,
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RESOURCE_REGULAR_FILE,
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RESOURCE_DIRECTORY,
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RESOURCE_SUBVOLUME);
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}
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/* Returns true for all resources that deal with file system objects, i.e. where we operate on top of the
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* file system layer, instead of below. */
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static inline bool RESOURCE_IS_FILESYSTEM(ResourceType t) {
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return IN_SET(t,
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RESOURCE_TAR,
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RESOURCE_REGULAR_FILE,
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RESOURCE_DIRECTORY,
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RESOURCE_SUBVOLUME);
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}
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static inline bool RESOURCE_IS_TAR(ResourceType t) {
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return IN_SET(t,
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RESOURCE_TAR,
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RESOURCE_URL_TAR);
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}
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static inline bool RESOURCE_IS_URL(ResourceType t) {
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return IN_SET(t,
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RESOURCE_URL_TAR,
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RESOURCE_URL_FILE);
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}
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typedef enum PathRelativeTo {
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/* Please make sure to follow the naming of the corresponding PartitionDesignator enum values,
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* where this makes sense, like for the following three. */
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PATH_RELATIVE_TO_ROOT,
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PATH_RELATIVE_TO_ESP,
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PATH_RELATIVE_TO_XBOOTLDR,
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PATH_RELATIVE_TO_BOOT, /* Refers to $BOOT from the BLS. No direct counterpart in PartitionDesignator */
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_PATH_RELATIVE_TO_MAX,
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_PATH_RELATIVE_TO_INVALID = -EINVAL,
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} PathRelativeTo;
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struct Resource {
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ResourceType type;
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/* Where to look for instances, and what to match precisely */
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char *path;
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bool path_auto; /* automatically find root path (only available if target resource, not source resource) */
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PathRelativeTo path_relative_to;
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char **patterns;
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GptPartitionType partition_type;
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bool partition_type_set;
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/* All instances of this resource we found */
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Instance **instances;
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size_t n_instances;
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/* If this is a partition resource (RESOURCE_PARTITION), then how many partition slots are currently unassigned, that we can use */
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size_t n_empty;
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};
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void resource_destroy(Resource *rr);
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int resource_load_instances(Resource *rr, bool verify, Hashmap **web_cache);
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Instance* resource_find_instance(Resource *rr, const char *version);
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int resource_resolve_path(Resource *rr, const char *root, const char *node);
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ResourceType resource_type_from_string(const char *s) _pure_;
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const char *resource_type_to_string(ResourceType t) _const_;
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PathRelativeTo path_relative_to_from_string(const char *s) _pure_;
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const char *path_relative_to_to_string(PathRelativeTo r) _const_;
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