1/*- 2 * Copyright (c) 2001 Chris D. Faulhaber 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 THE VOICES IN HIS HEAD BE 18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24 * POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h>
|
28__FBSDID("$FreeBSD: head/bin/setfacl/remove.c 139969 2005-01-10 08:39:26Z imp $");
|
28__FBSDID("$FreeBSD: head/bin/setfacl/remove.c 196936 2009-09-07 16:19:32Z trasz $"); |
29 30#include <sys/types.h> 31#include <sys/acl.h> 32#include <sys/stat.h> 33 34#include <err.h> 35#include <stdio.h> 36#include <string.h> 37 38#include "setfacl.h" 39 40/* 41 * remove ACL entries from an ACL 42 */ 43int
|
44remove_acl(acl_t acl, acl_t *prev_acl)
|
44remove_acl(acl_t acl, acl_t *prev_acl, const char *filename) |
45{ 46 acl_entry_t entry; 47 acl_t acl_new; 48 acl_tag_t tag;
|
49 int carried_error, entry_id;
|
49 int carried_error, entry_id, acl_brand, prev_acl_brand; |
50 51 carried_error = 0; 52
|
53 if (acl_type == ACL_TYPE_ACCESS)
54 acl_new = acl_dup(prev_acl[ACCESS_ACL]);
55 else
56 acl_new = acl_dup(prev_acl[DEFAULT_ACL]);
|
53 acl_get_brand_np(acl, &acl_brand); 54 acl_get_brand_np(*prev_acl, &prev_acl_brand); 55 56 if (acl_brand != prev_acl_brand) { 57 warnx("%s: branding mismatch; existing ACL is %s, " 58 "entry to be removed is %s", filename, 59 prev_acl_brand == ACL_BRAND_NFS4 ? "NFSv4" : "POSIX.1e", 60 acl_brand == ACL_BRAND_NFS4 ? "NFSv4" : "POSIX.1e"); 61 return (-1); 62 } 63 64 carried_error = 0; 65 66 acl_new = acl_dup(*prev_acl); |
67 if (acl_new == NULL)
|
58 err(1, "acl_dup() failed");
|
68 err(1, "%s: acl_dup() failed", filename); |
69 70 tag = ACL_UNDEFINED_TAG; 71 72 /* find and delete the entry */ 73 entry_id = ACL_FIRST_ENTRY; 74 while (acl_get_entry(acl, entry_id, &entry) == 1) { 75 entry_id = ACL_NEXT_ENTRY; 76 if (acl_get_tag_type(entry, &tag) == -1)
|
67 err(1, "acl_get_tag_type() failed");
|
77 err(1, "%s: acl_get_tag_type() failed", filename); |
78 if (tag == ACL_MASK) 79 have_mask++; 80 if (acl_delete_entry(acl_new, entry) == -1) { 81 carried_error++;
|
72 warnx("cannot remove non-existent acl entry");
|
82 warnx("%s: cannot remove non-existent ACL entry", 83 filename); |
84 } 85 } 86
|
76 if (acl_type == ACL_TYPE_ACCESS) {
77 acl_free(prev_acl[ACCESS_ACL]);
78 prev_acl[ACCESS_ACL] = acl_new;
79 } else {
80 acl_free(prev_acl[DEFAULT_ACL]);
81 prev_acl[DEFAULT_ACL] = acl_new;
|
87 acl_free(*prev_acl); 88 *prev_acl = acl_new; 89 90 if (carried_error) 91 return (-1); 92 93 return (0); 94} 95 96int 97remove_by_number(uint entry_number, acl_t *prev_acl, const char *filename) 98{ 99 acl_entry_t entry; 100 acl_t acl_new; 101 acl_tag_t tag; 102 int carried_error, entry_id; 103 uint i; 104 105 carried_error = 0; 106 107 acl_new = acl_dup(*prev_acl); 108 if (acl_new == NULL) 109 err(1, "%s: acl_dup() failed", filename); 110 111 tag = ACL_UNDEFINED_TAG; 112 113 /* 114 * Find out whether we're removing the mask entry, 115 * to behave the same as the routine above. 116 * 117 * XXX: Is this loop actually needed? 118 */ 119 entry_id = ACL_FIRST_ENTRY; 120 i = 0; 121 while (acl_get_entry(acl_new, entry_id, &entry) == 1) { 122 entry_id = ACL_NEXT_ENTRY; 123 if (i != entry_number) 124 continue; 125 if (acl_get_tag_type(entry, &tag) == -1) 126 err(1, "%s: acl_get_tag_type() failed", filename); 127 if (tag == ACL_MASK) 128 have_mask++; |
129 } 130
|
131 if (acl_delete_entry_np(acl_new, entry_number) == -1) { 132 carried_error++; 133 warn("%s: acl_delete_entry_np() failed", filename); 134 } 135 136 acl_free(*prev_acl); 137 *prev_acl = acl_new; 138 |
139 if (carried_error) 140 return (-1); 141 142 return (0); 143} 144 145/* 146 * remove default entries 147 */ 148int
|
94remove_default(acl_t *prev_acl)
|
149remove_default(acl_t *prev_acl, const char *filename) |
150{ 151
|
97 if (prev_acl[1]) {
98 acl_free(prev_acl[1]);
99 prev_acl[1] = acl_init(ACL_MAX_ENTRIES);
100 if (prev_acl[1] == NULL)
101 err(1, "acl_init() failed");
102 } else {
103 warn("cannot remove default ACL");
104 return (-1);
105 }
|
152 acl_free(*prev_acl); 153 *prev_acl = acl_init(ACL_MAX_ENTRIES); 154 if (*prev_acl == NULL) 155 err(1, "%s: acl_init() failed", filename); 156 |
157 return (0); 158} 159 160/* 161 * remove extended entries 162 */ 163void
|
113remove_ext(acl_t *prev_acl)
|
164remove_ext(acl_t *prev_acl, const char *filename) |
165{
|
115 acl_t acl_new, acl_old;
116 acl_entry_t entry, entry_new;
117 acl_permset_t perm;
118 acl_tag_t tag;
119 int entry_id, have_mask_entry;
|
166 acl_t acl_new; |
167
|
121 if (acl_type == ACL_TYPE_ACCESS)
122 acl_old = acl_dup(prev_acl[ACCESS_ACL]);
123 else
124 acl_old = acl_dup(prev_acl[DEFAULT_ACL]);
125 if (acl_old == NULL)
126 err(1, "acl_dup() failed");
127
128 have_mask_entry = 0;
129 acl_new = acl_init(ACL_MAX_ENTRIES);
|
168 acl_new = acl_strip_np(*prev_acl, !n_flag); |
169 if (acl_new == NULL)
|
131 err(1, "acl_init() failed");
132 tag = ACL_UNDEFINED_TAG;
|
170 err(1, "%s: acl_strip_np() failed", filename); |
171
|
134 /* only save the default user/group/other entries */
135 entry_id = ACL_FIRST_ENTRY;
136 while (acl_get_entry(acl_old, entry_id, &entry) == 1) {
137 entry_id = ACL_NEXT_ENTRY;
138
139 if (acl_get_tag_type(entry, &tag) == -1)
140 err(1, "acl_get_tag_type() failed");
141
142 switch(tag) {
143 case ACL_USER_OBJ:
144 case ACL_GROUP_OBJ:
145 case ACL_OTHER:
146 if (acl_get_tag_type(entry, &tag) == -1)
147 err(1, "acl_get_tag_type() failed");
148 if (acl_get_permset(entry, &perm) == -1)
149 err(1, "acl_get_permset() failed");
150 if (acl_create_entry(&acl_new, &entry_new) == -1)
151 err(1, "acl_create_entry() failed");
152 if (acl_set_tag_type(entry_new, tag) == -1)
153 err(1, "acl_set_tag_type() failed");
154 if (acl_set_permset(entry_new, perm) == -1)
155 err(1, "acl_get_permset() failed");
156 if (acl_copy_entry(entry_new, entry) == -1)
157 err(1, "acl_copy_entry() failed");
158 break;
159 case ACL_MASK:
160 have_mask_entry = 1;
161 break;
162 default:
163 break;
164 }
165 }
166 if (have_mask_entry && n_flag == 0) {
167 if (acl_calc_mask(&acl_new) == -1)
168 err(1, "acl_calc_mask() failed");
169 } else {
170 have_mask = 1;
171 }
172
173 if (acl_type == ACL_TYPE_ACCESS) {
174 acl_free(prev_acl[ACCESS_ACL]);
175 prev_acl[ACCESS_ACL] = acl_new;
176 } else {
177 acl_free(prev_acl[DEFAULT_ACL]);
178 prev_acl[DEFAULT_ACL] = acl_new;
179 }
|
172 acl_free(*prev_acl); 173 *prev_acl = acl_new; |
174}
|