PR_GET_SECCOMP(2) System Calls Manual PR_GET_SECCOMP(2)
NAME
PR_GET_SECCOMP - get the secure computing mode
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>
int prctl(PR_GET_SECCOMP);
DESCRIPTION
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 CON-
FIG_SECCOMP enabled.
RETURN VALUE
On success, this call returns the nonnegative value described above. On
error, -1 is returned, and errno is set to indicate the error; or the
process is killed.
ERRORS
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
/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).
STANDARDS
Linux.
HISTORY
Linux 2.6.23.
SEE ALSO
prctl(2), PR_SET_SECCOMP(2const), seccomp(2)
Linux man-pages 6.9.1 2024-06-02 PR_GET_SECCOMP(2)
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