2 * Copyright (c) 2008, 2009 Edward Tomasz NapieraĆa <trasz@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
36 #include "acl_support.h"
38 struct flagnames_struct {
44 struct flagnames_struct a_flags[] =
45 {{ ACL_ENTRY_FILE_INHERIT, "file_inherit", 'f'},
46 { ACL_ENTRY_DIRECTORY_INHERIT, "dir_inherit", 'd'},
47 { ACL_ENTRY_INHERIT_ONLY, "inherit_only", 'i'},
48 { ACL_ENTRY_NO_PROPAGATE_INHERIT, "no_propagate", 'n'},
49 { ACL_ENTRY_SUCCESSFUL_ACCESS, "successfull_access", 'S'},
50 { ACL_ENTRY_FAILED_ACCESS, "failed_access", 'F'},
52 * There is no ACE_IDENTIFIER_GROUP here - SunOS does not show it
53 * in the "flags" field. There is no ACE_OWNER, ACE_GROUP or
54 * ACE_EVERYONE either, for obvious reasons.
58 struct flagnames_struct a_access_masks[] =
59 {{ ACL_READ_DATA, "read_data", 'r'},
60 { ACL_WRITE_DATA, "write_data", 'w'},
61 { ACL_EXECUTE, "execute", 'x'},
62 { ACL_APPEND_DATA, "append_data", 'p'},
63 { ACL_DELETE_CHILD, "delete_child", 'D'},
64 { ACL_DELETE, "delete", 'd'},
65 { ACL_READ_ATTRIBUTES, "read_attributes", 'a'},
66 { ACL_WRITE_ATTRIBUTES, "write_attributes", 'A'},
67 { ACL_READ_NAMED_ATTRS, "read_xattr", 'R'},
68 { ACL_WRITE_NAMED_ATTRS, "write_xattr", 'W'},
69 { ACL_READ_ACL, "read_acl", 'c'},
70 { ACL_WRITE_ACL, "write_acl", 'C'},
71 { ACL_WRITE_OWNER, "write_owner", 'o'},
72 { ACL_SYNCHRONIZE, "synchronize", 's'},
73 { ACL_FULL_SET, "full_set", '\0'},
74 { ACL_MODIFY_SET, "modify_set", '\0'},
75 { ACL_READ_SET, "read_set", '\0'},
76 { ACL_WRITE_SET, "write_set", '\0'},
80 format_flag(uint32_t *var, const struct flagnames_struct *flags)
83 for (; flags->name != 0; flags++) {
84 if ((flags->flag & *var) == 0)
95 format_flags_verbose(char *str, size_t size, uint32_t var,
96 const struct flagnames_struct *flags)
101 while ((tmp = format_flag(&var, flags)) != NULL) {
102 off += snprintf(str + off, size - off, "%s/", tmp);
106 /* If there were any flags added... */
109 /* ... then remove the last slash. */
110 assert(str[off] == '/');
119 format_flags_compact(char *str, size_t size, uint32_t var,
120 const struct flagnames_struct *flags)
124 for (i = 0; flags[i].letter != '\0'; i++) {
126 if ((flags[i].flag & var) == 0)
129 str[i] = flags[i].letter;
138 parse_flags_verbose(const char *strp, uint32_t *var,
139 const struct flagnames_struct *flags, const char *flags_name,
142 int i, found, ever_found = 0;
149 while (str != NULL) {
150 flag = strsep(&str, "/:");
153 for (i = 0; flags[i].name != NULL; i++) {
154 if (strcmp(flags[i].name, flag) == 0) {
155 *var |= flags[i].flag;
163 warnx("malformed ACL: \"%s\" field contains "
164 "invalid flag \"%s\"", flags_name, flag);
177 parse_flags_compact(const char *str, uint32_t *var,
178 const struct flagnames_struct *flags, const char *flags_name)
188 /* Ignore minus signs. */
194 for (j = 0; flags[j].name != NULL; j++) {
195 if (flags[j].letter == str[i]) {
196 *var |= flags[j].flag;
203 warnx("malformed ACL: \"%s\" field contains "
204 "invalid flag \"%c\"", flags_name, str[i]);
211 _nfs4_format_flags(char *str, size_t size, acl_flag_t var, int verbose)
215 return (format_flags_verbose(str, size, var, a_flags));
217 return (format_flags_compact(str, size, var, a_flags));
221 _nfs4_format_access_mask(char *str, size_t size, acl_perm_t var, int verbose)
225 return (format_flags_verbose(str, size, var, a_access_masks));
227 return (format_flags_compact(str, size, var, a_access_masks));
231 _nfs4_parse_flags(const char *str, acl_flag_t *flags)
233 int error, try_compact;
236 error = parse_flags_verbose(str, &tmpflags, a_flags, "flags", &try_compact);
237 if (error && try_compact)
238 error = parse_flags_compact(str, &tmpflags, a_flags, "flags");
246 _nfs4_parse_access_mask(const char *str, acl_perm_t *perms)
248 int error, try_compact;
251 error = parse_flags_verbose(str, &tmpperms, a_access_masks,
252 "access permissions", &try_compact);
253 if (error && try_compact)
254 error = parse_flags_compact(str, &tmpperms,
255 a_access_masks, "access permissions");