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#pragma once
/***
This file is part of systemd.
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdbool.h>
#include "systemd-basic/hashmap.h"
#include "systemd-basic/macro.h"
#include "systemd-basic/strv.h"
#include "systemd-basic/unit-name.h"
typedef enum UnitFileChangeType UnitFileChangeType;
typedef enum UnitFileFlags UnitFileFlags;
typedef enum UnitFilePresetMode UnitFilePresetMode;
typedef enum UnitFileScope UnitFileScope;
typedef enum UnitFileState UnitFileState;
typedef enum UnitFileType UnitFileType;
typedef struct UnitFileChange UnitFileChange;
typedef struct UnitFileInstallInfo UnitFileInstallInfo;
typedef struct UnitFileList UnitFileList;
#include "path-lookup.h"
enum UnitFileScope {
UNIT_FILE_SYSTEM,
UNIT_FILE_GLOBAL,
UNIT_FILE_USER,
_UNIT_FILE_SCOPE_MAX,
_UNIT_FILE_SCOPE_INVALID = -1
};
enum UnitFileState {
UNIT_FILE_ENABLED,
UNIT_FILE_ENABLED_RUNTIME,
UNIT_FILE_LINKED,
UNIT_FILE_LINKED_RUNTIME,
UNIT_FILE_MASKED,
UNIT_FILE_MASKED_RUNTIME,
UNIT_FILE_STATIC,
UNIT_FILE_DISABLED,
UNIT_FILE_INDIRECT,
UNIT_FILE_GENERATED,
UNIT_FILE_TRANSIENT,
UNIT_FILE_BAD,
_UNIT_FILE_STATE_MAX,
_UNIT_FILE_STATE_INVALID = -1
};
enum UnitFilePresetMode {
UNIT_FILE_PRESET_FULL,
UNIT_FILE_PRESET_ENABLE_ONLY,
UNIT_FILE_PRESET_DISABLE_ONLY,
_UNIT_FILE_PRESET_MAX,
_UNIT_FILE_PRESET_INVALID = -1
};
enum UnitFileChangeType {
UNIT_FILE_SYMLINK,
UNIT_FILE_UNLINK,
UNIT_FILE_IS_MASKED,
UNIT_FILE_IS_DANGLING,
_UNIT_FILE_CHANGE_TYPE_MAX,
_UNIT_FILE_CHANGE_INVALID = INT_MIN
};
enum UnitFileFlags {
UNIT_FILE_RUNTIME = 1,
UNIT_FILE_FORCE = 1 << 1,
UNIT_FILE_DRY_RUN = 1 << 2,
};
/* type can either one of the UnitFileChangeTypes listed above, or a negative error.
* 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; /* UnitFileChangeType or bust */
char *path;
char *source;
};
static inline bool unit_file_changes_have_modification(const UnitFileChange* changes, unsigned n_changes) {
unsigned i;
for (i = 0; i < n_changes; i++)
if (IN_SET(changes[i].type, 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 = -1,
};
struct UnitFileInstallInfo {
char *name;
char *path;
char **aliases;
char **wanted_by;
char **required_by;
char **also;
char *default_instance;
char *symlink_target;
UnitFileType type;
bool auxiliary;
};
static inline bool UNIT_FILE_INSTALL_INFO_HAS_RULES(UnitFileInstallInfo *i) {
assert(i);
return !strv_isempty(i->aliases) ||
!strv_isempty(i->wanted_by) ||
!strv_isempty(i->required_by);
}
static inline bool UNIT_FILE_INSTALL_INFO_HAS_ALSO(UnitFileInstallInfo *i) {
assert(i);
return !strv_isempty(i->also);
}
bool unit_type_may_alias(UnitType type) _const_;
bool unit_type_may_template(UnitType type) _const_;
int unit_file_enable(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_disable(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_reenable(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_preset(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFilePresetMode mode,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_preset_all(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
UnitFilePresetMode mode,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_mask(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_unmask(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_link(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_revert(
UnitFileScope scope,
const char *root_dir,
char **files,
UnitFileChange **changes,
unsigned *n_changes);
int unit_file_set_default(
UnitFileScope scope,
UnitFileFlags flags,
const char *root_dir,
const char *file,
UnitFileChange **changes,
unsigned *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,
unsigned *n_changes);
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, unsigned *n_changes, UnitFileChangeType type, const char *path, const char *source);
void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes);
void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet);
int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name);
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(UnitFileChangeType s) _const_;
UnitFileChangeType 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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