1 /*- 2 * Copyright (c) 1999, 2000, 20001 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 * $FreeBSD$ 27 */ 28 /* 29 * acl_valid -- POSIX.1e ACL check routine 30 */ 31 32 #include <sys/types.h> 33 #include "namespace.h" 34 #include <sys/acl.h> 35 #include "un-namespace.h" 36 #include <sys/errno.h> 37 #include <stdlib.h> 38 39 #include "acl_support.h" 40 41 /* 42 * acl_valid: accepts an ACL, returns 0 on valid ACL, -1 for invalid, 43 * and errno set to EINVAL. 44 * 45 * Implemented by calling the acl_check routine in acl_support, which 46 * requires ordering. We call acl_support's _posix1e_acl_sort to make this 47 * true. POSIX.1e allows acl_valid() to reorder the ACL as it sees fit. 48 * 49 * This call is deprecated, as it doesn't ask whether the ACL is valid 50 * for a particular target. However, this call is standardized, unlike 51 * the other two forms. 52 */ 53 int 54 acl_valid(acl_t acl) 55 { 56 int error; 57 58 if (acl == NULL) { 59 errno = EINVAL; 60 return (-1); 61 } 62 _posix1e_acl_sort(acl); 63 error = _posix1e_acl_check(acl); 64 if (error) { 65 errno = error; 66 return (-1); 67 } else { 68 return (0); 69 } 70 } 71 72 73 int 74 acl_valid_file_np(const char *pathp, acl_type_t type, acl_t acl) 75 { 76 int error; 77 78 if (pathp == NULL || acl == NULL) { 79 errno = EINVAL; 80 return (-1); 81 } 82 if (_posix1e_acl(acl, type)) { 83 error = _posix1e_acl_sort(acl); 84 if (error) { 85 errno = error; 86 return (-1); 87 } 88 } 89 90 return (__acl_aclcheck_file(pathp, type, &acl->ats_acl)); 91 } 92 93 94 int 95 acl_valid_fd_np(int fd, acl_type_t type, acl_t acl) 96 { 97 int error; 98 99 if (acl == NULL) { 100 errno = EINVAL; 101 return (-1); 102 } 103 if (_posix1e_acl(acl, type)) { 104 error = _posix1e_acl_sort(acl); 105 if (error) { 106 errno = error; 107 return (-1); 108 } 109 } 110 111 acl->ats_cur_entry = 0; 112 113 114 return (___acl_aclcheck_fd(fd, type, &acl->ats_acl)); 115 } 116