VOP_GETACL(9) BSD Kernel Developer's Manual VOP_GETACL(9)NAMEVOP_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 request.
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 semantics, 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 appropriate privi‐
lege.
[ENOMEM] Sufficient memory is not available to fulfill the
request.
[EOPNOTSUPP] The file system does not support VOP_GETACL().
SEE ALSOacl(9), vnode(9), VOP_ACLCHECK(9), VOP_SETACL(9)AUTHORS
This manual page was written by Robert Watson.
BSD December 23, 1999 BSD
