:man| Alphabetical   Categories   About us 
 
VFS_SUSER (9) | Kernel routines | Unix Manual Pages | :man

NAME

vfs_suser - check if credentials have superuser privileges for a mount point

CONTENTS

Synopsis
Description
Return Values
See Also
History
Authors

SYNOPSIS


.In sys/param.h
.In sys/systm.h
.In sys/mount.h int vfs_suser "struct mount *mp" "struct thread *td"

DESCRIPTION

The vfs_suser function checks if the credentials given include superuser powers for the given mount point. It will check to see if the thread passed in has the same credentials as the user that mounted the file system. If so, it returns 0, otherwise it returns what suser(9) would have returned.

RETURN VALUES

The vfs_suser function returns 0 if the user has superuser powers and EPERM otherwise. This is the reverse logic of some other implementations of suser in which a TRUE response indicates superuser powers.

SEE ALSO

chroot(2), jail(2), suser(9)

HISTORY

AUTHORS


Share this page

     Follow us

Facebook Twitter Google+ LinkedIn


 
Created by Blin Media, 2008-2013