vop_setacl(9)

NAME

VOP_SETACL - set the access control list for a vnode

SYNOPSIS

#include <sys/param.h>
#include <sys/vnode.h>
#include <sys/acl.h>
int
VOP_SETACL(struct vnode *vp,  acl_type_t  type,  struct  acl
*aclp,
        struct ucred *cred, struct thread *td);

DESCRIPTION

This vnode call may be used to set the access control list

(ACL) for a
file or directory.

Its arguments are:

vp The vnode of the file or directory.

type The type of ACL to set.

aclp A pointer to an ACL structure from which to retrieve

the ACL data.

cred The user credentials to use in authorizing the re

quest.

td The thread setting the ACL.

The aclp pointer may be NULL to indicate that the specified

ACL should be
deleted.

The cred pointer may be NULL to indicate that access control

checks are
not to be performed, if possible. This cred setting might

be used to
allow the kernel to authorize ACL changes that the active

process might
not be permitted to make.

The vnode ACL interface defines the syntax, and not seman

tics, of file
and directory ACL interfaces. More information about ACL

management in
kernel may be found in acl(9).

LOCKS

The vnode will be locked on entry and should remain locked

on return.

RETURN VALUES

If the ACL is successfully set, then zero is returned. Oth

erwise, an
appropriate error code is returned.

ERRORS

[EINVAL] The ACL type passed is invalid for this

vnode, or the

ACL data is invalid.

[EACCES] The the caller does not have the appro

priate privi

lege.

[ENOMEM] Sufficient memory is not available to

fulfill the

request.

[EOPNOTSUPP] The file system does not support

VOP_SETACL

[ENOSPC] The file system is out of space.

[EROFS] The file system is read-only.

SEE ALSO

acl(9), vnode(9), VOP_ACLCHECK(9), VOP_GETACL(9)

AUTHORS

This manual page was written by Robert Watson.

BSD December 23, 1999

BSD