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 /* 27 * acl_valid -- POSIX.1e ACL check routine 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/types.h> 34 #include "namespace.h" 35 #include <sys/acl.h> 36 #include "un-namespace.h" 37 #include <sys/errno.h> 38 #include <stdlib.h> 39 40 #include "acl_support.h" 41 42 /* 43 * acl_valid: accepts an ACL, returns 0 on valid ACL, -1 for invalid, 44 * and errno set to EINVAL. 45 * 46 * Implemented by calling the acl_check routine in acl_support, which 47 * requires ordering. We call acl_support's _posix1e_acl_sort to make this 48 * true. POSIX.1e allows acl_valid() to reorder the ACL as it sees fit. 49 * 50 * This call is deprecated, as it doesn't ask whether the ACL is valid 51 * for a particular target. However, this call is standardized, unlike 52 * the other two forms. 53 */ 54 int 55 acl_valid(acl_t acl) 56 { 57 int error; 58 59 if (acl == NULL) { 60 errno = EINVAL; 61 return (-1); 62 } 63 _posix1e_acl_sort(acl); 64 error = _posix1e_acl_check(acl); 65 if (error) { 66 errno = error; 67 return (-1); 68 } else { 69 return (0); 70 } 71 } 72 73 74 int 75 acl_valid_file_np(const char *pathp, acl_type_t type, acl_t acl) 76 { 77 int error; 78 79 if (pathp == NULL || acl == NULL) { 80 errno = EINVAL; 81 return (-1); 82 } 83 if (_posix1e_acl(acl, type)) { 84 error = _posix1e_acl_sort(acl); 85 if (error) { 86 errno = error; 87 return (-1); 88 } 89 } 90 91 return (__acl_aclcheck_file(pathp, type, &acl->ats_acl)); 92 } 93 94 95 int 96 acl_valid_fd_np(int fd, acl_type_t type, acl_t acl) 97 { 98 int error; 99 100 if (acl == NULL) { 101 errno = EINVAL; 102 return (-1); 103 } 104 if (_posix1e_acl(acl, type)) { 105 error = _posix1e_acl_sort(acl); 106 if (error) { 107 errno = error; 108 return (-1); 109 } 110 } 111 112 acl->ats_cur_entry = 0; 113 114 115 return (___acl_aclcheck_fd(fd, type, &acl->ats_acl)); 116 } 117