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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <stdbool.h>
typedef enum UnitFilePresetMode UnitFilePresetMode;
typedef enum UnitFileChangeType UnitFileChangeType;
typedef enum UnitFileFlags UnitFileFlags;
typedef enum UnitFileType UnitFileType;
typedef struct UnitFileChange UnitFileChange;
typedef struct UnitFileList UnitFileList;
typedef struct UnitFileInstallInfo UnitFileInstallInfo;
#include "hashmap.h"
#include "macro.h"
#include "path-lookup.h"
#include "strv.h"
#include "unit-name.h"
enum UnitFilePresetMode {
UNIT_FILE_PRESET_FULL,
UNIT_FILE_PRESET_ENABLE_ONLY,
UNIT_FILE_PRESET_DISABLE_ONLY,
_UNIT_FILE_PRESET_MAX,
_UNIT_FILE_PRESET_INVALID = -EINVAL,
};
/* This enum type is anonymous, since we usually store it in an 'int', as we overload it with negative errno
* values. */
enum {
UNIT_FILE_SYMLINK,
UNIT_FILE_UNLINK,
UNIT_FILE_IS_MASKED,
UNIT_FILE_IS_DANGLING,
UNIT_FILE_DESTINATION_NOT_PRESENT,
UNIT_FILE_AUXILIARY_FAILED,
_UNIT_FILE_CHANGE_TYPE_MAX,
_UNIT_FILE_CHANGE_TYPE_INVALID = -EINVAL,
};
enum UnitFileFlags {
UNIT_FILE_RUNTIME = 1 << 0, /* Public API via DBUS, do not change */
UNIT_FILE_FORCE = 1 << 1, /* Public API via DBUS, do not change */
UNIT_FILE_PORTABLE = 1 << 2, /* Public API via DBUS, do not change */
UNIT_FILE_DRY_RUN = 1 << 3,
UNIT_FILE_IGNORE_AUXILIARY_FAILURE = 1 << 4,
_UNIT_FILE_FLAGS_MASK_PUBLIC = UNIT_FILE_RUNTIME|UNIT_FILE_PORTABLE|UNIT_FILE_FORCE,
};
/* type can either one of the UNIT_FILE_SYMLINK, UNIT_FILE_UNLINK, … listed above, or a negative errno value.
* If source is specified, it should be the contents of the path symlink. In case of an error, source should
* be the existing symlink contents or NULL. */
struct UnitFileChange {
int type_or_errno; /* UNIT_FILE_SYMLINK, … if positive, errno if negative */
char *path;
char *source;
};
static inline bool unit_file_changes_have_modification(const UnitFileChange* changes, size_t n_changes) {
for (size_t i = 0; i < n_changes; i++)
if (IN_SET(changes[i].type_or_errno, UNIT_FILE_SYMLINK, UNIT_FILE_UNLINK))
return true;
return false;
}
struct UnitFileList {
char *path;
UnitFileState state;
};
enum UnitFileType {
UNIT_FILE_TYPE_REGULAR,
UNIT_FILE_TYPE_SYMLINK,
UNIT_FILE_TYPE_MASKED,
_UNIT_FILE_TYPE_MAX,
_UNIT_FILE_TYPE_INVALID = -EINVAL,
};
struct UnitFileInstallInfo {
char *name;
char *path;
char *root;
char **aliases;
char **wanted_by;
char **required_by;
char **also;
char *default_instance;
char *symlink_target;
UnitFileType type;
bool auxiliary;
};
int unit_file_enable(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_disable(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_reenable(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_preset(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFilePresetMode mode,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_preset_all(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
UnitFilePresetMode mode,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_mask(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_unmask(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_link(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_revert(
UnitFileScope scope,
const char *root_dir,
char **files,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_set_default(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
const char *file,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_get_default(
UnitFileScope scope,
const char *root_dir,
char **name);
int unit_file_add_dependency(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
const char *target,
UnitDependency dep,
UnitFileChange **changes,
size_t *n_changes);
int unit_file_lookup_state(
UnitFileScope scope,
const LookupPaths *paths,
const char *name,
UnitFileState *ret);
int unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename, UnitFileState *ret);
int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name);
int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h, char **states, char **patterns);
Hashmap* unit_file_list_free(Hashmap *h);
int unit_file_changes_add(UnitFileChange **changes, size_t *n_changes, int type, const char *path, const char *source);
void unit_file_changes_free(UnitFileChange *changes, size_t n_changes);
void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, size_t n_changes, bool quiet);
int unit_file_verify_alias(const UnitFileInstallInfo *i, const char *dst, char **ret_dst);
typedef struct UnitFilePresetRule UnitFilePresetRule;
typedef struct {
UnitFilePresetRule *rules;
size_t n_rules;
bool initialized;
} UnitFilePresets;
void unit_file_presets_freep(UnitFilePresets *p);
int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name, UnitFilePresets *cached);
const char *unit_file_state_to_string(UnitFileState s) _const_;
UnitFileState unit_file_state_from_string(const char *s) _pure_;
/* from_string conversion is unreliable because of the overlap between -EPERM and -1 for error. */
const char *unit_file_change_type_to_string(int s) _const_;
int unit_file_change_type_from_string(const char *s) _pure_;
const char *unit_file_preset_mode_to_string(UnitFilePresetMode m) _const_;
UnitFilePresetMode unit_file_preset_mode_from_string(const char *s) _pure_;
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