vop_getacl(9)

NAME

VOP_GETACL - retrieve access control list for a vnode

SYNOPSIS

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

DESCRIPTION

This vnode call may be used to retrieve the access control

list (ACL)
from a file or directory.

Its arguments are:

vp The vnode of the file or directory.

type The type of ACL to retrieve.

aclp A pointer to an ACL structure to receive the ACL data.

cred The user credentials to use in authorizing the re

quest.

td The thread requesting the ACL.

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 retrieval that the active

process might
not be permitted to do.

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 aclp pointer will point to a valid ACL, then zero is

returned.
Otherwise, an appropriate error code is returned.

ERRORS

[EINVAL] The ACL type passed is invalid for this

vnode.

[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_GETACL

SEE ALSO

acl(9), vnode(9), VOP_ACLCHECK(9), VOP_SETACL(9)

AUTHORS

This manual page was written by Robert Watson.

BSD December 23, 1999

BSD