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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
commit2cb7e0aaedad73b076ea18c6900b0e86c5760d79 (patch)
treeda68ca54bb79f4080079bf0828acda937593a4e1 /src/libsystemd/sd-device/device-internal.h
parentInitial commit. (diff)
downloadsystemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.tar.xz
systemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.zip
Adding upstream version 247.3.upstream/247.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libsystemd/sd-device/device-internal.h')
-rw-r--r--src/libsystemd/sd-device/device-internal.h114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/libsystemd/sd-device/device-internal.h b/src/libsystemd/sd-device/device-internal.h
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+++ b/src/libsystemd/sd-device/device-internal.h
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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);