Crate udevrs

Pure Rust library for interacting with the udev userspace devfs.

Uses the libc and nix crate to make syscalls to Linux.

Structs

• BpfFilters
  Collection of BPF socket filters for kernel events.
• LineBuf
  Line buffer for parsing HWDB on-disk file format.
• Mode
  Linux file-permission mode.
• Syspath
  Represents the file path in the sys filesystem.
• TrieChildEntry
  Trie child entry in the hardware database.
• TrieEntry
  Represents the full Trie entry in the HWDB.
• TrieHeader
  On-disk trie objects
• TrieNode
  Trie node in the hardware database.
• TrieValueEntry
  Trie value entry in the hardware database.
• Udev
  libudev context
• UdevDevice
  Represents one kernel sys device.
• UdevEntry
  UDEV list entry.
• UdevEnumerate
  Represents one device lookup/sort context..
• UdevHwdb
  Represents the on-disk hardware database.
• UdevList
  Represents a list wrapper around a UdevEntryList.
• UdevMonitor
  Handles device event sources.
• UdevMonitorNetlinkHeader
  Represents a UDEV Netlink header.
• UdevQueue
  Represents the current event queue in the udev daemon.
• file_handle
  Represents an FFI type from fcntl.h for a file_handle.

Enums

• Error
  Error types for the udev library.
• LogPriority
• UdevMonitorNetlinkGroup
  Represents the netlink group for the UdevMonitor.
• UdevSocket
  Represents socket variants on a Linux system.

Constants

• BPF_FILTER_LEN
  Maximum length of BPF socket filters.
• ENVP_LEN
  Maximum number of ENVP entries
• HWDB_SIG
  Hardware database signature.
• HWDB_SIG_STR
  Hardware database signature (string representation).
• LINE_MAX
  Maximum length for a file line.
• LOG_ALERT
• LOG_CRIT
• LOG_DEBUG
• LOG_EMERG
• LOG_ERR
• LOG_INFO
• LOG_NOTICE
• LOG_WARNING
• MODE_MASK
  Bitmask for Mode.
• RULES_PATH_LEN
• UDEV_MONITOR_MAGIC
  UDEV Monitor magic bytes
• UDEV_ROOT_RUN
  Default filesystem path for the UDEV run directory.
• UEVENT_FILE_LIMIT
  Limits the number of characters for a UEVENT file.

Functions

• child_entry_size
  Gets the ChildEntry size loaded from the TrieHeader.
• encode_devnode_name
  Encodes a devnode name, removing potentially dangerous characters.
• encode_string
  Encodes provided string, removing potentially unsafe characters.
• major
  Gets the major part of the device number.
• minor
  Gets the minor part of the device number.
• murmur_hash2
  MurmurHash2 was written by Austin Appleby, and is placed in the public domain. The author hereby disclaims copyright to this source code.
• name_to_handle_at
  Wrapper around a syscall that returns an opaque handle that corresponds to a specified file.
• node_size
  Gets the Node size loaded from the TrieHeader.
• string_bloom64
  Gets a bunch of bit numbers out of the hash, and sets the bits into a bitfield.
• string_hash32
  Compute a MurMurHash over the provided string.
• trie_string
  Parses a string from the HWDB buffer.
• udev_device_get_action
  Gets the device action.
• udev_device_get_current_tags_list_entry
  Gets the current tags list entry in the UdevDevice.
• udev_device_get_devlinks_list_entry
  Gets the list of device links for the UdevDevice.
• udev_device_get_devnode
  Gets the UdevDevice devnode.
• udev_device_get_devnum
  Gets the device major/minor number.
• udev_device_get_devpath
  Gets the UdevDevice device path.
• udev_device_get_driver
  Gets the kernel driver name.
• udev_device_get_is_initialized
  Gets whether the UdevDevice is initialized.
• udev_device_get_parent
  Gets the next parent UdevDevice.
• udev_device_get_parent_with_subsystem_devtype
  Gets the next parent UdevDevice based on subsystem and devtype.
• udev_device_get_property_value
  Gets the value of a given property.
• udev_device_get_seqnum
  Gets the device event sequence number.
• udev_device_get_sysattr_list_entry
  Gets the first entry in the sysattr properties list.
• udev_device_get_sysattr_value
  Gets the sys attribute file value.
• udev_device_get_sysname
  Gets the UdevDevice sysname.
• udev_device_get_sysnum
  Gets the UdevDevice sysnum.
• udev_device_get_syspath
  Gets the UdevDevice syspath.
• udev_device_get_tags_list_entry
  Gets the first tags list entry in the UdevDevice.
• udev_device_get_udev
  Gets a reference to the Udev context from an UdevDevice.
• udev_device_get_udev_cloned
  Gets a cloned reference to the Udev context from an UdevDevice.
• udev_device_get_usec_since_initialized
  Gets the number of microseconds since the UdevDevice was initialized.
• udev_device_has_current_tag
  Gets whether the UdevDevice has the provided current tag associated.
• udev_device_has_tag
  Gets whether the UdevDevice has the provided tag associated.
• udev_device_new
  Creates a new UdevDevice from the provided Udev context.
• udev_device_new_from_device_id
  Create new UdevDevice from an ID string.
• udev_device_new_from_devnum
  Creates new UdevDevice.
• udev_device_new_from_environment
  Create new udev device from the environment information.
• udev_device_new_from_subsystem_sysname
  Creates a new UdevDevice from the subsystem and sysname.
• udev_device_new_from_syspath
  Creates new UdevDevice, and fills in information from the sys device and the udev database entry.
• udev_device_read_db
  Reads UdevDevice information from the persistent database file.
• udev_enumerate_add_match_is_initialized
  Sets whether the match lists are initialized.
• udev_enumerate_add_match_parent
  Sets the parent UdevDevice on a given device tree.
• udev_enumerate_add_match_property
  Adds an entry to the match properties UdevEntry list.
• udev_enumerate_add_match_subsystem
  Adds an entry to the match subsystem UdevEntry list.
• udev_enumerate_add_match_sysattr
  Adds an entry to the match sysattr UdevEntry list.
• udev_enumerate_add_match_sysname
  Adds an entry to the match sysname UdevEntry list.
• udev_enumerate_add_match_tag
  Adds an entry to the match tag UdevEntry list.
• udev_enumerate_add_nomatch_subsystem
  Adds an entry to the no-match subsystem UdevEntry list.
• udev_enumerate_add_nomatch_sysattr
  Adds an entry to the no-match sysattr UdevEntry list.
• udev_enumerate_add_syspath
  Adds a devices to the list of devices.
• udev_enumerate_new
  Creates a new UdevEnumerate.
• udev_enumerate_scan_devices
  Scan /sys for devices which match the given filters.
• udev_enumerate_scan_subsystems
  Scans /sys for all kernel subsystems.
• udev_get_log_priority
  Gets the LogPriority for the Udev context.
• udev_hwdb_get_properties_list_entry
  Looks up a matching device in the hardware database.
• udev_hwdb_new
  Creates a new UdevHwdb.
• udev_hwdb_query
  Looks up a matching device modalias in the hardware database and returns the list of properties.
• udev_hwdb_query_one
  Looks up a specific matching property name (key) for device modalias
• udev_list_entry_foreach
  Helper function that iterates over every UdevEntry in the list, applying the function to each entry.
• udev_list_entry_foreach_mut
  Helper function that iterates over every UdevEntry in the list, applying the function to each entry.
• udev_list_entry_get_name
  Gets the name of the UdevEntry.
• udev_list_entry_get_next
  Gets a reference to the next entry in a UdevList.
• udev_list_entry_get_next_mut
  Gets a mutable reference to the next entry in a UdevList.
• udev_list_entry_get_value
  Gets the value of the UdevEntry.
• udev_monitor_enable_receiving
  Binds the UdevMonitor socket to the event source.
• udev_monitor_filter_add_match_subsystem_devtype
  Adds an UdevEntry into the filter subsystem list.
• udev_monitor_filter_add_match_tag
  Adds an UdevEntry into the filter tag list.
• udev_monitor_filter_remove
  Removes all filters from the UdevMonitor.
• udev_monitor_filter_update
  Updates the monitor socket filter.
• udev_monitor_get_fd
  Gets the UdevMonitor socket file descriptor.
• udev_monitor_get_udev
  Gets the Udev context of the UdevMonitor.
• udev_monitor_new_from_netlink
  Creates a new UdevMonitor from the provided parameters.
• udev_monitor_receive_device
  Receives data from the UdevMonitor socket.
• udev_monitor_set_receive_buffer_size
  Sets the size of the kernel socket buffer.
• udev_new
  Creates a new Udev context.
• udev_queue_flush
  Clears the watched file descriptor for queue changes.
• udev_queue_get_fd
  Gets a file descriptor to watch for a queue to become empty.
• udev_queue_get_queue_is_empty
  Gets whether UdevQueue is currently processing any events.
• udev_queue_get_udev
  Gets a reference to the Udev context.
• udev_queue_get_udev_is_active
  Checks if Udev is active on the system.
• udev_queue_new
  Creates a new UdevQueue.
• udev_set_log_priority
  Sets the LogPriority for the Udev context.
• udev_util_encode_string
  Encodes provided string, removing potentially unsafe characters.
• value_entry_size
  Gets the ValueEntry size loaded from the TrieHeader.
• whitelisted_char_for_devnode
  Gets whether the provided character is whitelisted.

Type Aliases

• Result
  Convenience alias for the udev library Result type.
• UdevEntryList
  Convenience alias for a LinkedList of UdevEntry.