[Overview][Constants][Types][Procedures and functions][Index] Reference for unit 'Linux' (#rtl)

Reference for unit 'Linux': Constants

CAP_AUDIT_CONTROL

  

Allow manipulation of kernel auditing features

CAP_AUDIT_WRITE

  

Allow writing to kernel audit log

CAP_CHOWN

  

Perform chown operation

CAP_DAC_OVERRIDE

  

Bypass file operation (rwx) checks

CAP_DAC_READ_SEARCH

  

Bypass file read-only operation checks

CAP_FOWNER

  

Bypass owner ID checks

CAP_FSETID

  

Do not clear SUID/GUID bits on modified files

CAP_FS_MASK

  

?

CAP_IPC_LOCK

  

Allow memory locking calls

CAP_IPC_OWNER

  

Bypass permission checks on IPC operations

CAP_KILL

  

Bypass permission checks for sending signals

CAP_LEASE

  

Allow file leases

CAP_LINUX_IMMUTABLE

  

Allow setting ext2 file attributes

CAP_MKNOD

  

Allow creation of special files through mknod calls

CAP_NET_ADMIN

  

Allow network operations (e.g. setting socket options)

CAP_NET_BIND_SERVICE

  

Allow binding to ports less than 1024

CAP_NET_BROADCAST

  

Allow socket broadcast operations

CAP_NET_RAW

  

Allow use of RAW and PACKET sockets

CAP_SETGID

  

Allow GID manipulations

CAP_SETPCAP

  

Allow to set other process' capabilities

CAP_SETUID

  

Allow process ID manipulations

CAP_SYS_ADMIN

  

Allow various system administration calls

CAP_SYS_BOOT

  

Allow reboot calls

CAP_SYS_CHROOT

  

Allow chroot calls.

CAP_SYS_MODULE

  

Allow loading/unloading of kernel modules

CAP_SYS_NICE

  

Allowing raising process and thread priorities

CAP_SYS_PACCT

  

Allow acct calls

CAP_SYS_PTRACE

  

Allow ptrace calls

CAP_SYS_RAWIO

  

Allow raw I/O port operations

CAP_SYS_RESOURCE

  

Allow use of special resources or raising of resource limits

CAP_SYS_TIME

  

Allow system or real-time clock modification

CAP_SYS_TTY_CONFIG

  

Allow vhangup calls

CLOCKS_MASK

  

Mask for supported clocks

CLOCKS_MONO

  

Monotonic clocks mask

CLOCK_MONOTONIC

  

Monotonic system time since some undetermined start point. Can change if time is set.

CLOCK_MONOTONIC_COARSE

  

Less precise (but faster) version of CLOCK_MONOTONIC

CLOCK_MONOTONIC_RAW

  

Like CLOCK_MONOTONIC, not subject to NTP adjustments

CLOCK_PROCESS_CPUTIME_ID

  

Processs-specific high-resolution timer from the CPU.

CLOCK_REALTIME

  

System wide real-time clock. Can only be set by root.

CLOCK_REALTIME_COARSE

  

Less precise (but faster) version of CLOCK_REALTIME

CLOCK_SGI_CYCLE

  

High resolution timer

CLOCK_THREAD_CPUTIME_ID

  

Thread-specific high-resolution timer from the CPU.

CLONE_CHILD_CLEARTID

  

Clone option: Erase child thread ID in child memory space when child exits.

CLONE_CHILD_SETTID

  

Clone option: Store child thread ID in child memory.

CLONE_DETACHED

  

Clone option: Start clone detached.

CLONE_FILES

  

Clone option: open files shared between processes

CLONE_FS

  

Clone option: fs info shared between processes

CLONE_NEWNS

  

Clone options: Start child in new (file system) namespace.

CLONE_PARENT

  

Clone options: Set child parent to parent of calling process.

CLONE_PARENT_SETTID

  

Clone option: Store child thread ID in memory in both parent and child.

CLONE_PID

  

Clone option: PID shared between processes

CLONE_PTRACE

  

Clone options: if parent is traced, trace child also

CLONE_SETTLS

  

Clone option: The newtls parameter is the TLS descriptor of the child

CLONE_SIGHAND

  

Clone option: signal handlers shared between processes

CLONE_STOPPED

  

Clone option: Start child in stopped state.

CLONE_SYSVSEM

  

Clone option: Caller and child share the same semaphore undo values

CLONE_THREAD

  

Clone options: Set child in thread group of calling process.

CLONE_UNTRACED

  

Clone option: Do not allow a ptrace call on this clone.

CLONE_VFORK

  

Clone options: suspend parent till child execs

CLONE_VM

  

Clone option: VM shared between processes

CSIGNAL

  

Clone option: Signal mask to be sent at exit

EPOLLERR

  

event_wait error condition on file descriptor

EPOLLET

  

Set event_wait edge trigger behaviour on file descriptor

EPOLLHUP

  

event_wait hang up event

EPOLLIN

  

event_wait input file descriptor ready event

EPOLLONESHOT

  

Set single-shot behaviour on epoll_wait.

EPOLLOUT

  

event_wait output file descriptor ready event

EPOLLPRI

  

event_wait high priority data available on input file descriptor

EPOLL_CTL_ADD

  

Add filedescriptor to list of events

EPOLL_CTL_DEL

  

Delete event for filedescriptor

EPOLL_CTL_MOD

  

Modify event for filedescriptor

FUTEX_CMP_REQUEUE

  

Futex option: requeue waiting processes on other futex, but check it's value first

FUTEX_FD

  

Futex option: Associate file descriptor with futex.

FUTEX_LOCK_PI

  

Futex option: Undocumented

FUTEX_OP_ADD

  

Futex operation: Undocumented

FUTEX_OP_ANDN

  

Futex operation: Undocumented

FUTEX_OP_CMP_EQ

  

Futex operation: Undocumented

FUTEX_OP_CMP_GE

  

Futex operation: Undocumented

FUTEX_OP_CMP_GT

  

Futex operation: Undocumented

FUTEX_OP_CMP_LE

  

Futex operation: Undocumented

FUTEX_OP_CMP_LT

  

Futex operation: Undocumented

FUTEX_OP_CMP_NE

  

Futex operation: Undocumented

FUTEX_OP_OPARG_SHIFT

  

Futex operation: Undocumented

FUTEX_OP_OR

  

Futex operation: Undocumented

FUTEX_OP_SET

  

Futex operation: Undocumented

FUTEX_OP_XOR

  

Futex operation: Undocumented

FUTEX_REQUEUE

  

Futex option: requeue waiting processes on other futex.

FUTEX_TRYLOCK_PI

  

Futex option: Undocumented

FUTEX_UNLOCK_PI

  

Futex option: Undocumented

FUTEX_WAIT

  

Futex option: Wait on futex till wake call arrives.

FUTEX_WAKE

  

Futex option: wakes any waiting processes on this futex

FUTEX_WAKE_OP

  

Futex option: Undocumented

GIO_CMAP

  

IOCTL: Get color palette on VGA+

GIO_FONT

  

IOCTL: Get font in expanded form.

GIO_FONTX

  

IOCTL: Get font in consolefontdesc record.

GIO_SCRNMAP

  

IOCTL: get screen mapping from kernel

GIO_UNIMAP

  

IOCTL: get unicode-to-font mapping from kernel

GIO_UNISCRNMAP

  

IOCTL: get full Unicode screen mapping

IN_ACCESS

  

Data was read from file.

IN_ALL_EVENTS

  

All possible events OR-ed together.

IN_ATTRIB

  

File attributes changed.

IN_CLOEXEC

  

Inotify close on exec flag.

IN_CLOSE

  

File was closed (read or write)

IN_CLOSE_NOWRITE

  

File opened for read was closed

IN_CLOSE_WRITE

  

File opened for write was closed

IN_CREATE

  

A file was created in the directory.

IN_DELETE

  

A file was deleted from the directory.

IN_DELETE_SELF

  

Directory or file under observation was deleted.

IN_DONT_FOLLOW

  

Do not follow symlinks

IN_IGNORED

  

Watch was ignored (removed). Only reported.

IN_ISDIR

  

Event subject is a directory (reported only)

IN_MASK_ADD

  

Add events to existing watch (OR-ing the sets) if one exists.

IN_MODIFY

  

Data was written to file.

IN_MOVE

  

File was moved (in or out of directory)

IN_MOVED_FROM

  

File was moved away from watched directory

IN_MOVED_TO

  

File was moved into watched directory

IN_MOVE_SELF

  

Directory or file under observation was moved.

IN_NONBLOCK

  

Do not block on read

IN_ONESHOT

  

Only report one event, then remove the watch.

IN_ONLYDIR

  

Only watch filename if it is a directory.

IN_OPEN

  

File was opened

IN_Q_OVERFLOW

  

Queue overflowed. Only reported.

IN_UNMOUNT

  

File system on which file resides was unmounted. Only reported.

KB_101

  

IOCTL: Keyboard types: 101 keys

KB_84

  

IOCTL: Keyboard types: 84 keys

KB_OTHER

  

IOCTL: Keyboard types: other type

KDADDIO

  

IOCTL: add i/o port as valid

KDDELIO

  

IOCTL: delete i/o port as valid

KDDISABIO

  

IOCTL: disable i/o to video board

KDENABIO

  

IOCTL: enable i/o to video board

KDFONTOP

  

IOCTL: font operations

KDGETKEYCODE

  

IOCTL: read kernel keycode table entry

KDGETLED

  

IOCTL: return current led state

KDGETMODE

  

IOCTL: get current mode

KDGKBDIACR

  

IOCTL: read kernel accent table

KDGKBTYPE

  

IOCTL: get keyboard type

KDMAPDISP

  

IOCTL: map display into address space

KDMKTONE

  

IOCTL: generate tone

KDSETKEYCODE

  

IOCTL: write kernel keycode table entry

KDSETLED

  

IOCTL: set led state

KDSETMODE

  

IOCTL: set text/graphics mode

KDSIGACCEPT

  

IOCTL: accept kbd generated signals

KDSKBDIACR

  

IOCTL: write kernel accent table

KDUNMAPDISP

  

IOCTL: unmap display from address space

KD_GRAPHICS

  

IOCTL: Tty modes: graphics mode

KD_TEXT

  

IOCTL: Tty modes: Text mode

KD_TEXT0

  

IOCTL: Tty modes: Text mode (obsolete)

KD_TEXT1

  

IOCTL: Tty modes: Text mode (obsolete)

KIOCSOUND

  

IOCTL: start/stop sound generation (0 for off)

LED_CAP

  

IOCTL: LED_CAP : caps lock led

LED_NUM

  

IOCTL: LED_SCR : Num lock led

LED_SCR

  

IOCTL: LED_SCR : scroll lock led

LINUX_CAPABILITY_VERSION

  

Current capability version in use by kernel

MAP_DENYWRITE

  

Read-only

MAP_EXECUTABLE

  

Memory area is marked as executable

MAP_GROWSDOWN

  

Memory map grows down, like stack

MAP_LOCKED

  

Memory pages are locked

MAP_NORESERVE

  

Do not check for reservations

MAX_CLOCKS

  

Maximum number of clocks in the system

O_CLOEXEC

  

Close on exec flag: close file handle on exec call

PIO_CMAP

  

IOCTL: Set color palette on VGA+

PIO_FONT

  

IOCTL: Use font in expanded form.

PIO_FONTRESET

  

IOCTL: Reset to default font

PIO_FONTX

  

IOCTL: Set font in consolefontdesc record.

PIO_SCRNMAP

  

IOCTL: put screen mapping table in kernel

PIO_UNIMAP

  

IOCTL: put unicode-to-font mapping in kernel

PIO_UNIMAPCLR

  

IOCTL: clear table, possibly advise hash algorithm

PIO_UNISCRNMAP

  

IOCTL: set full Unicode screen mapping

POLLMSG

  

Unused in Linux

POLLRDHUP

  

Peer Shutdown/closed writing half of connection

POLLREMOVE

  

Undocumented Linux extension of Poll

SPLICE_F_GIFT

  

Pages spliced in are a gift

SPLICE_F_MORE

  

Expect more data

SPLICE_F_MOVE

  

Move pages instead of copying

SPLICE_F_NONBLOCK

  

Don't block on pipe splicing operations

SYNC_FILE_RANGE_WAIT_AFTER

  

Wait upon write-out of specified pages in the range after performing any write.

SYNC_FILE_RANGE_WAIT_BEFORE

  

Wait for write-out of previously-submitted specified pages before writing more data.

SYNC_FILE_RANGE_WRITE

  

Initiate write of all dirty pages in the specified range.


Documentation generated on: Jun 23 2021