diff options
| author | Alejandro Colomar <alx@kernel.org> | 2024-05-30 01:43:09 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2024-05-31 01:54:51 +0200 |
| commit | 380f3aecdb1949967acf751d282fae82e5dec43c (patch) | |
| tree | 37d223e9563295b6bdd915132f37b982e7298fab /man | |
| parent | 40a71311b95582a07eb8cafa067e98a6cc62449a (diff) | |
| download | man-pages-380f3aecdb1949967acf751d282fae82e5dec43c.tar.gz | |
PR_GET_SECCOMP.2const: Tweak after split
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man')
| -rw-r--r-- | man/man2const/PR_GET_SECCOMP.2const | 51 |
1 files changed, 27 insertions, 24 deletions
diff --git a/man/man2const/PR_GET_SECCOMP.2const b/man/man2const/PR_GET_SECCOMP.2const index 396f06c476..0cf9943129 100644 --- a/man/man2const/PR_GET_SECCOMP.2const +++ b/man/man2const/PR_GET_SECCOMP.2const @@ -1,9 +1,8 @@ .\" Copyright 2008, 2012, 2013, 2015, Michael Kerrisk <mtk.manpages@gmail.com> +.\" Copyright 2024, Alejandro Colomar <alx@kernel.org> .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" -.\" 2008-06-15 mtk, Document PR_GET_SECCOMP -.\" .TH PR_GET_SECCOMP 2 (date) "Linux man-pages (unreleased)" .SH NAME PR_GET_SECCOMP @@ -16,13 +15,11 @@ Standard C library .nf .B #include <sys/prctl.h> .P -.BI "int prctl(int " op ", ...);" +.B int prctl(PR_GET_SECCOMP, 0L, 0L, 0L, 0L); .fi .SH DESCRIPTION -.TP -.BR PR_GET_SECCOMP " (since Linux 2.6.23)" -Return (as the function result) -the secure computing mode of the calling thread. +Return the secure computing mode of the calling thread. +.P If the caller is not in secure computing mode, this operation returns 0; if the caller is in strict secure computing mode, then the .BR prctl () @@ -33,38 +30,44 @@ 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 .B SIGKILL signal. -.IP +.P This operation is available only if the kernel is configured with .B CONFIG_SECCOMP enabled. -.IP -Since Linux 3.8, the -.I Seccomp -field of the -.IR /proc/ pid /status -file provides a method of obtaining the same information, -without the risk that the process is killed; see -.BR proc (5). .SH RETURN VALUE On success, -and (if it returns) -.B PR_GET_SECCOMP -return the nonnegative values described above. +this call +returns the nonnegative value described above. On error, \-1 is returned, and .I errno -is set to indicate the error. +is set to indicate the error; +or the process is killed. .SH ERRORS .TP .B EINVAL -.I op -is -.BR PR_GET_SECCOMP , -and the kernel was not configured with +The kernel was not configured with .BR CONFIG_SECCOMP . +.TP +.B SIGKILL +The caller is in strict secure computing mode. +.TP +.B SIGKILL +The caller is in filter mode, +and this system call is not allowed by the seccomp filters. +.SH FILES +.TP +.IR /proc/ pid /status +Since Linux 3.8, the +.I Seccomp +field of this file +provides a method of obtaining the same information, +without the risk that the process is killed; see +.BR proc_pid_status (5). .SH STANDARDS Linux. .SH HISTORY +Linux 2.6.23. .SH SEE ALSO .BR prctl (2), .BR PR_SET_SECCOMP (2const), |