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