1.\"- 2.\" Copyright (c) 1999, 2000, 2001 Robert N. M. Watson 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd December 23, 1999 27.Dt VOP_GETACL 9 28.Os 29.Sh NAME 30.Nm VOP_GETACL 31.Nd retrieve access control list for a vnode 32.Sh SYNOPSIS 33.In sys/param.h 34.In sys/vnode.h 35.In sys/acl.h 36.Ft int 37.Fn VOP_GETACL "struct vnode *vp" "acl_type_t type" "struct acl *aclp" "struct ucred *cred" "struct thread *td" 38.Sh DESCRIPTION 39This vnode call may be used to retrieve the access control list (ACL) from a 40file or directory. 41.Pp 42Its arguments are: 43.Bl -tag -width type 44.It Fa vp 45The vnode of the file or directory. 46.It Fa type 47The type of ACL to retrieve. 48.It Fa aclp 49A pointer to an ACL structure to receive the ACL data. 50.It Fa cred 51The user credentials to use in authorizing the request. 52.It Fa td 53The thread requesting the ACL. 54.El 55.Pp 56The 57.Fa cred 58pointer may be 59.Dv NULL 60to indicate that access control checks are not to be performed, if possible. 61This cred setting might be used to allow the kernel to authorize ACL 62retrieval that the active process might not be permitted to do. 63.Pp 64The vnode ACL interface defines the syntax, and not semantics, of file and 65directory ACL interfaces. 66More information about ACL management in kernel may be found in 67.Xr acl 9 . 68.Sh LOCKS 69The vnode will be locked on entry and should remain locked on return. 70.Sh RETURN VALUES 71If the 72.Fa aclp 73pointer will point to a valid ACL, then zero is returned. 74Otherwise, an appropriate error code is returned. 75.Sh ERRORS 76.Bl -tag -width Er 77.It Bq Er EINVAL 78The ACL type passed is invalid for this vnode. 79.It Bq Er EACCES 80The caller does not have the appropriate privilege. 81.It Bq Er ENOMEM 82Sufficient memory is not available to fulfill the request. 83.It Bq Er EOPNOTSUPP 84The file system does not support 85.Fn VOP_GETACL . 86.El 87.Sh SEE ALSO 88.Xr acl 9 , 89.Xr vnode 9 , 90.Xr VOP_ACLCHECK 9 , 91.Xr VOP_SETACL 9 92.Sh AUTHORS 93This manual page was written by 94.An Robert Watson . 95