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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include "sd-device.h"
#include "device-private.h"
#include "hashmap.h"
#include "set.h"
#include "time-util.h"
#define LATEST_UDEV_DATABASE_VERSION 1
struct sd_device {
unsigned n_ref;
/* The database version indicates the supported features by the udev database.
* This is saved and parsed in V field.
*
* 0: None of the following features are supported (systemd version <= 246).
* 1: The current tags (Q) and the database version (V) features are implemented (>= 247).
*/
unsigned database_version;
int watch_handle;
sd_device *parent;
OrderedHashmap *properties;
Iterator properties_iterator;
uint64_t properties_generation; /* changes whenever the properties are changed */
uint64_t properties_iterator_generation; /* generation when iteration was started */
/* the subset of the properties that should be written to the db */
OrderedHashmap *properties_db;
Hashmap *sysattr_values; /* cached sysattr values */
Set *sysattrs; /* names of sysattrs */
Iterator sysattrs_iterator;
Set *all_tags, *current_tags;
Iterator all_tags_iterator, current_tags_iterator;
uint64_t all_tags_iterator_generation, current_tags_iterator_generation; /* generation when iteration was started */
uint64_t tags_generation; /* changes whenever the tags are changed */
Set *devlinks;
Iterator devlinks_iterator;
uint64_t devlinks_generation; /* changes whenever the devlinks are changed */
uint64_t devlinks_iterator_generation; /* generation when iteration was started */
int devlink_priority;
int ifindex;
char *devtype;
char *devname;
dev_t devnum;
char **properties_strv; /* the properties hashmap as a strv */
uint8_t *properties_nulstr; /* the same as a nulstr */
size_t properties_nulstr_len;
char *syspath;
const char *devpath;
const char *sysnum;
char *sysname;
char *subsystem;
char *driver_subsystem; /* only set for the 'drivers' subsystem */
char *driver;
char *id_filename;
uint64_t usec_initialized;
mode_t devmode;
uid_t devuid;
gid_t devgid;
/* only set when device is passed through netlink */
DeviceAction action;
uint64_t seqnum;
bool parent_set:1; /* no need to try to reload parent */
bool sysattrs_read:1; /* don't try to re-read sysattrs once read */
bool property_tags_outdated:1; /* need to update TAGS= or CURRENT_TAGS= property */
bool property_devlinks_outdated:1; /* need to update DEVLINKS= property */
bool properties_buf_outdated:1; /* need to reread hashmap */
bool sysname_set:1; /* don't reread sysname */
bool subsystem_set:1; /* don't reread subsystem */
bool driver_subsystem_set:1; /* don't reread subsystem */
bool driver_set:1; /* don't reread driver */
bool uevent_loaded:1; /* don't reread uevent */
bool db_loaded; /* don't reread db */
bool is_initialized:1;
bool sealed:1; /* don't read more information from uevent/db */
bool db_persist:1; /* don't clean up the db when switching from initrd to real root */
};
int device_new_aux(sd_device **ret);
int device_add_property_aux(sd_device *device, const char *key, const char *value, bool db);
static inline int device_add_property_internal(sd_device *device, const char *key, const char *value) {
return device_add_property_aux(device, key, value, false);
}
int device_read_uevent_file(sd_device *device);
int device_set_syspath(sd_device *device, const char *_syspath, bool verify);
int device_set_ifindex(sd_device *device, const char *ifindex);
int device_set_devmode(sd_device *device, const char *devmode);
int device_set_devname(sd_device *device, const char *devname);
int device_set_devtype(sd_device *device, const char *devtype);
int device_set_devnum(sd_device *device, const char *major, const char *minor);
int device_set_subsystem(sd_device *device, const char *_subsystem);
int device_set_driver(sd_device *device, const char *_driver);
int device_set_usec_initialized(sd_device *device, usec_t when);
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