acl_valid.c revision 91033
156055Srwatson/*- 274191Srwatson * Copyright (c) 1999, 2000, 20001 Robert N. M. Watson 356055Srwatson * All rights reserved. 456055Srwatson * 556055Srwatson * Redistribution and use in source and binary forms, with or without 656055Srwatson * modification, are permitted provided that the following conditions 756055Srwatson * are met: 856055Srwatson * 1. Redistributions of source code must retain the above copyright 956055Srwatson * notice, this list of conditions and the following disclaimer. 1056055Srwatson * 2. Redistributions in binary form must reproduce the above copyright 1156055Srwatson * notice, this list of conditions and the following disclaimer in the 1256055Srwatson * documentation and/or other materials provided with the distribution. 1356055Srwatson * 1456055Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1556055Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1656055Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1756055Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1856055Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1956055Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2056055Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2156055Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2256055Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2356055Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2456055Srwatson * SUCH DAMAGE. 2556055Srwatson * 2674191Srwatson * $FreeBSD: head/lib/libc/posix1e/acl_valid.c 91033 2002-02-21 23:13:06Z jedgar $ 2756055Srwatson */ 2856055Srwatson/* 2956055Srwatson * acl_valid -- POSIX.1e ACL check routine 3056055Srwatson */ 3156055Srwatson 3256055Srwatson#include <sys/types.h> 3375185Stmm#include "namespace.h" 3456055Srwatson#include <sys/acl.h> 3575185Stmm#include "un-namespace.h" 3656055Srwatson#include <sys/errno.h> 3791033Sjedgar#include <stdlib.h> 3856055Srwatson 3956055Srwatson#include "acl_support.h" 4056055Srwatson 4156055Srwatson/* 4256055Srwatson * acl_valid: accepts an ACL, returns 0 on valid ACL, -1 for invalid, 4356055Srwatson * and errno set to EINVAL. 4456055Srwatson * 4556055Srwatson * Implemented by calling the acl_check routine in acl_support, which 4674191Srwatson * requires ordering. We call acl_support's _posix1e_acl_sort to make this 4756760Srwatson * true. POSIX.1e allows acl_valid() to reorder the ACL as it sees fit. 4856055Srwatson * 4956055Srwatson * This call is deprecated, as it doesn't ask whether the ACL is valid 5056760Srwatson * for a particular target. However, this call is standardized, unlike 5156760Srwatson * the other two forms. 5256055Srwatson */ 5356055Srwatsonint 5456055Srwatsonacl_valid(acl_t acl) 5556055Srwatson{ 5656055Srwatson int error; 5756055Srwatson 5891033Sjedgar if (acl == NULL) { 5991033Sjedgar errno = EINVAL; 6091033Sjedgar return (-1); 6191033Sjedgar } 6274191Srwatson _posix1e_acl_sort(acl); 6374191Srwatson error = _posix1e_acl_check(acl); 6456055Srwatson if (error) { 6556055Srwatson errno = error; 6656055Srwatson return (-1); 6756055Srwatson } else { 6856055Srwatson return (0); 6956055Srwatson } 7056055Srwatson} 7156055Srwatson 7256055Srwatson 7356055Srwatsonint 7456760Srwatsonacl_valid_file_np(const char *pathp, acl_type_t type, acl_t acl) 7556055Srwatson{ 7656055Srwatson int error; 7756055Srwatson 7891033Sjedgar if (pathp == NULL || acl == NULL) { 7991033Sjedgar errno = EINVAL; 8091033Sjedgar return (-1); 8191033Sjedgar } 8274191Srwatson if (_posix1e_acl(acl, type)) { 8374191Srwatson error = _posix1e_acl_sort(acl); 8456055Srwatson if (error) { 8556055Srwatson errno = error; 8656055Srwatson return (-1); 8756055Srwatson } 8856055Srwatson } 8956055Srwatson 9075928Sjedgar return (__acl_aclcheck_file(pathp, type, &acl->ats_acl)); 9156055Srwatson} 9256055Srwatson 9356055Srwatson 9456055Srwatsonint 9556760Srwatsonacl_valid_fd_np(int fd, acl_type_t type, acl_t acl) 9656055Srwatson{ 9756055Srwatson int error; 9856055Srwatson 9991033Sjedgar if (acl == NULL) { 10091033Sjedgar errno = EINVAL; 10191033Sjedgar return (-1); 10291033Sjedgar } 10374191Srwatson if (_posix1e_acl(acl, type)) { 10474191Srwatson error = _posix1e_acl_sort(acl); 10556055Srwatson if (error) { 10656055Srwatson errno = error; 10756055Srwatson return (-1); 10856055Srwatson } 10956055Srwatson } 11056055Srwatson 11175928Sjedgar acl->ats_cur_entry = 0; 11275928Sjedgar 11375928Sjedgar 11475928Sjedgar return (___acl_aclcheck_fd(fd, type, &acl->ats_acl)); 11556055Srwatson} 116