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
| 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.
| 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.
|
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, 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, acl_brand, prev_acl_brand;
50
51 carried_error = 0;
52
53 acl_get_brand_np(acl, &acl_brand);
54 acl_get_brand_np(*prev_acl, &prev_acl_brand);
55
56 if (branding_mismatch(acl_brand, prev_acl_brand)) {
57 warnx("%s: branding mismatch; existing ACL is %s, "
58 "entry to be removed is %s", filename,
59 brand_name(prev_acl_brand), brand_name(acl_brand));
60 return (-1);
61 }
62
63 carried_error = 0;
64
65 acl_new = acl_dup(*prev_acl);
66 if (acl_new == NULL)
67 err(1, "%s: acl_dup() failed", filename);
68
69 tag = ACL_UNDEFINED_TAG;
70
71 /* find and delete the entry */
72 entry_id = ACL_FIRST_ENTRY;
73 while (acl_get_entry(acl, entry_id, &entry) == 1) {
74 entry_id = ACL_NEXT_ENTRY;
75 if (acl_get_tag_type(entry, &tag) == -1)
76 err(1, "%s: acl_get_tag_type() failed", filename);
77 if (tag == ACL_MASK)
78 have_mask++;
79 if (acl_delete_entry(acl_new, entry) == -1) {
80 carried_error++;
81 warnx("%s: cannot remove non-existent ACL entry",
82 filename);
83 }
84 }
85
86 acl_free(*prev_acl);
87 *prev_acl = acl_new;
88
89 if (carried_error)
90 return (-1);
91
92 return (0);
93}
94
95int
96remove_by_number(uint entry_number, acl_t *prev_acl, const char *filename)
97{
98 acl_entry_t entry;
99 acl_t acl_new;
100 acl_tag_t tag;
101 int carried_error, entry_id;
102 uint i;
103
104 carried_error = 0;
105
106 acl_new = acl_dup(*prev_acl);
107 if (acl_new == NULL)
108 err(1, "%s: acl_dup() failed", filename);
109
110 tag = ACL_UNDEFINED_TAG;
111
112 /*
113 * Find out whether we're removing the mask entry,
114 * to behave the same as the routine above.
115 *
116 * XXX: Is this loop actually needed?
117 */
118 entry_id = ACL_FIRST_ENTRY;
119 i = 0;
120 while (acl_get_entry(acl_new, entry_id, &entry) == 1) {
121 entry_id = ACL_NEXT_ENTRY;
122 if (i != entry_number)
123 continue;
124 if (acl_get_tag_type(entry, &tag) == -1)
125 err(1, "%s: acl_get_tag_type() failed", filename);
126 if (tag == ACL_MASK)
127 have_mask++;
128 }
129
130 if (acl_delete_entry_np(acl_new, entry_number) == -1) {
131 carried_error++;
132 warn("%s: acl_delete_entry_np() failed", filename);
133 }
134
135 acl_free(*prev_acl);
136 *prev_acl = acl_new;
137
138 if (carried_error)
139 return (-1);
140
141 return (0);
142}
143
144/*
145 * remove default entries
146 */
147int
148remove_default(acl_t *prev_acl, const char *filename)
149{
150
151 acl_free(*prev_acl);
152 *prev_acl = acl_init(ACL_MAX_ENTRIES);
153 if (*prev_acl == NULL)
154 err(1, "%s: acl_init() failed", filename);
155
156 return (0);
157}
158
159/*
160 * remove extended entries
161 */
162void
163remove_ext(acl_t *prev_acl, const char *filename)
164{
165 acl_t acl_new;
166
167 acl_new = acl_strip_np(*prev_acl, !n_flag);
168 if (acl_new == NULL)
169 err(1, "%s: acl_strip_np() failed", filename);
170
171 acl_free(*prev_acl);
172 *prev_acl = acl_new;
173}
| 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, 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, acl_brand, prev_acl_brand;
50
51 carried_error = 0;
52
53 acl_get_brand_np(acl, &acl_brand);
54 acl_get_brand_np(*prev_acl, &prev_acl_brand);
55
56 if (branding_mismatch(acl_brand, prev_acl_brand)) {
57 warnx("%s: branding mismatch; existing ACL is %s, "
58 "entry to be removed is %s", filename,
59 brand_name(prev_acl_brand), brand_name(acl_brand));
60 return (-1);
61 }
62
63 carried_error = 0;
64
65 acl_new = acl_dup(*prev_acl);
66 if (acl_new == NULL)
67 err(1, "%s: acl_dup() failed", filename);
68
69 tag = ACL_UNDEFINED_TAG;
70
71 /* find and delete the entry */
72 entry_id = ACL_FIRST_ENTRY;
73 while (acl_get_entry(acl, entry_id, &entry) == 1) {
74 entry_id = ACL_NEXT_ENTRY;
75 if (acl_get_tag_type(entry, &tag) == -1)
76 err(1, "%s: acl_get_tag_type() failed", filename);
77 if (tag == ACL_MASK)
78 have_mask++;
79 if (acl_delete_entry(acl_new, entry) == -1) {
80 carried_error++;
81 warnx("%s: cannot remove non-existent ACL entry",
82 filename);
83 }
84 }
85
86 acl_free(*prev_acl);
87 *prev_acl = acl_new;
88
89 if (carried_error)
90 return (-1);
91
92 return (0);
93}
94
95int
96remove_by_number(uint entry_number, acl_t *prev_acl, const char *filename)
97{
98 acl_entry_t entry;
99 acl_t acl_new;
100 acl_tag_t tag;
101 int carried_error, entry_id;
102 uint i;
103
104 carried_error = 0;
105
106 acl_new = acl_dup(*prev_acl);
107 if (acl_new == NULL)
108 err(1, "%s: acl_dup() failed", filename);
109
110 tag = ACL_UNDEFINED_TAG;
111
112 /*
113 * Find out whether we're removing the mask entry,
114 * to behave the same as the routine above.
115 *
116 * XXX: Is this loop actually needed?
117 */
118 entry_id = ACL_FIRST_ENTRY;
119 i = 0;
120 while (acl_get_entry(acl_new, entry_id, &entry) == 1) {
121 entry_id = ACL_NEXT_ENTRY;
122 if (i != entry_number)
123 continue;
124 if (acl_get_tag_type(entry, &tag) == -1)
125 err(1, "%s: acl_get_tag_type() failed", filename);
126 if (tag == ACL_MASK)
127 have_mask++;
128 }
129
130 if (acl_delete_entry_np(acl_new, entry_number) == -1) {
131 carried_error++;
132 warn("%s: acl_delete_entry_np() failed", filename);
133 }
134
135 acl_free(*prev_acl);
136 *prev_acl = acl_new;
137
138 if (carried_error)
139 return (-1);
140
141 return (0);
142}
143
144/*
145 * remove default entries
146 */
147int
148remove_default(acl_t *prev_acl, const char *filename)
149{
150
151 acl_free(*prev_acl);
152 *prev_acl = acl_init(ACL_MAX_ENTRIES);
153 if (*prev_acl == NULL)
154 err(1, "%s: acl_init() failed", filename);
155
156 return (0);
157}
158
159/*
160 * remove extended entries
161 */
162void
163remove_ext(acl_t *prev_acl, const char *filename)
164{
165 acl_t acl_new;
166
167 acl_new = acl_strip_np(*prev_acl, !n_flag);
168 if (acl_new == NULL)
169 err(1, "%s: acl_strip_np() failed", filename);
170
171 acl_free(*prev_acl);
172 *prev_acl = acl_new;
173}
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