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| author | Alejandro Colomar <alx@kernel.org> | 2024-06-11 02:09:17 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2024-06-13 23:54:50 +0200 |
| commit | ebc5e0a8bc89552f9fc92f34e8e9301fee58c17f (patch) | |
| tree | f5f24a17fcac7a04dfd911a204639e959af3d3d6 | |
| parent | 9eb2052aadc3aa1d2a53329c84b7fd6616d69e0e (diff) | |
| download | man-pages-ebc5e0a8bc89552f9fc92f34e8e9301fee58c17f.tar.gz | |
ioctl_nsfs.2, NS_GET_OWNER_UID.2const: Split NS_GET_OWNER_UID from ioctl_nsfs(2)
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | man/man2/ioctl_nsfs.2 | 32 | ||||
| -rw-r--r-- | man/man2const/NS_GET_OWNER_UID.2const | 46 |
2 files changed, 48 insertions, 30 deletions
diff --git a/man/man2/ioctl_nsfs.2 b/man/man2/ioctl_nsfs.2 index b1840c8405..387a6cd1da 100644 --- a/man/man2/ioctl_nsfs.2 +++ b/man/man2/ioctl_nsfs.2 @@ -17,38 +17,9 @@ ioctl() operations for Linux namespaces .SS Discovering the namespace type .TP .B NS_GET_NSTYPE -.\" ============================================================ -.\" .SS Discovering the owner of a user namespace -The -.B NS_GET_OWNER_UID -.\" commit 015bb305b8ebe8d601a238ab70ebdc394c7a19ba -operation (available since Linux 4.11) can be used to discover -the owner user ID of a user namespace (i.e., the effective user ID -of the process that created the user namespace). -The form of the call is: -.P -.in +4n -.EX -uid_t uid; -ioctl(fd, NS_GET_OWNER_UID, &uid); -.EE -.in -.P -.I fd -refers to a -.IR /proc/ pid /ns/user -file. -.P -The owner user ID is returned in the -.I uid_t -pointed to by the third argument. -.P -This operation can fail with the following error: .TP -.B EINVAL -.I fd -does not refer to a user namespace. +.B NS_GET_OWNER_UID .SH ERRORS Any of the above .BR ioctl () @@ -66,6 +37,7 @@ Linux. .BR NS_GET_USERNS (2const), .BR NS_GET_PARENT (2const), .BR NS_GET_NSTYPE (2const), +.BR NS_GET_OWNER_UID (2const), .BR fstat (2), .BR proc (5), .BR namespaces (7) diff --git a/man/man2const/NS_GET_OWNER_UID.2const b/man/man2const/NS_GET_OWNER_UID.2const new file mode 100644 index 0000000000..3b92537407 --- /dev/null +++ b/man/man2const/NS_GET_OWNER_UID.2const @@ -0,0 +1,46 @@ +.\" Copyright 2017, Michael Kerrisk <mtk.manpages@gmail.com> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.TH NS_GET_OWNER_UID 2const (date) "Linux man-pages (unreleased)" +.SH NAME +NS_GET_OWNER_UID +\- +discovering the owner of a user namespace +.SH DESCRIPTION +The +.B NS_GET_OWNER_UID +.\" commit 015bb305b8ebe8d601a238ab70ebdc394c7a19ba +operation (available since Linux 4.11) can be used to discover +the owner user ID of a user namespace (i.e., the effective user ID +of the process that created the user namespace). +The form of the call is: +.P +.in +4n +.EX +uid_t uid; +ioctl(fd, NS_GET_OWNER_UID, &uid); +.EE +.in +.P +.I fd +refers to a +.IR /proc/ pid /ns/user +file. +.P +The owner user ID is returned in the +.I uid_t +pointed to by the third argument. +.P +This operation can fail with the following error: +.TP +.B EINVAL +.I fd +does not refer to a user namespace. +.SH ERRORS +.SH STANDARDS +Linux. +.SH HISTORY +.SH SEE ALSO +.BR ioctl (2), +.BR ioctl_nsfs (2) |