PR_GET_SECCOMP(2const) - Linux manual page (original) (raw)

PRGETSECCOMP(2) System Calls Manual PRGETSECCOMP(2)

NAME top

   PR_GET_SECCOMP - get the secure computing mode

LIBRARY top

   Standard C library (_libc_, _-lc_)

SYNOPSIS top

   **#include <linux/prctl.h>** /* Definition of **PR_*** constants */
   **#include <sys/prctl.h>**

   **int prctl(PR_GET_SECCOMP);**

DESCRIPTION top

   Return the secure computing mode of the calling thread.

   If the caller is not in secure computing mode, this operation
   returns 0; if the caller is in strict secure computing mode, then
   the **prctl**() call will cause a **SIGKILL** signal to be sent to the
   process.  If the caller is in filter mode, and this system call is
   allowed by the seccomp filters, it returns 2; otherwise, the
   process is killed with a **SIGKILL** signal.

   This operation is available only if the kernel is configured with
   **CONFIG_SECCOMP** enabled.

RETURN VALUE top

   On success, this call returns the nonnegative value described
   above.  On error, -1 is returned, and _[errno](../man3/errno.3.html)_ is set to indicate the
   error; or the process is killed.

ERRORS top

   **EINVAL** The kernel was not configured with **CONFIG_SECCOMP**.

   **SIGKILL**
          The caller is in strict secure computing mode.

   **SIGKILL**
          The caller is in filter mode, and this system call is not
          allowed by the seccomp filters.

FILES top

   _/proc/_pid_/status_
          Since Linux 3.8, the _Seccomp_ field of this file provides a
          method of obtaining the same information, without the risk
          that the process is killed; see [proc_pid_status(5)](../man5/proc%5Fpid%5Fstatus.5.html).

STANDARDS top

   Linux.

HISTORY top

   Linux 2.6.23.

SEE ALSO top

   [prctl(2)](../man2/prctl.2.html), [PR_SET_SECCOMP(2const)](../man2/PR%5FSET%5FSECCOMP.2const.html), [seccomp(2)](../man2/seccomp.2.html)

COLOPHON top

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Linux man-pages 6.10 2024-07-23 PRGETSECCOMP(2)

Pages that refer to this page:prctl(2), PR_SET_SECCOMP(2const)