2 Copyright (c) 2008, 2009, 2010 Frank Lahm <franklahm@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
17 #endif /* HAVE_CONFIG_H */
26 #ifdef HAVE_SOLARIS_ACLS
29 #ifdef HAVE_POSIX_ACLS
31 #include <acl/libacl.h>
34 #include <atalk/errchk.h>
35 #include <atalk/adouble.h>
36 #include <atalk/vfs.h>
37 #include <atalk/afp.h>
38 #include <atalk/util.h>
39 #include <atalk/cnid.h>
40 #include <atalk/logger.h>
41 #include <atalk/uuid.h>
42 #include <atalk/acl.h>
43 #include <atalk/bstrlib.h>
44 #include <atalk/bstradd.h>
46 #include "directory.h"
52 #include "acl_mappings.h"
55 #define SOLARIS_2_DARWIN 1
56 #define DARWIN_2_SOLARIS 2
57 #define POSIX_DEFAULT_2_DARWIN 3
58 #define POSIX_ACCESS_2_DARWIN 4
59 #define DARWIN_2_POSIX_DEFAULT 5
60 #define DARWIN_2_POSIX_ACCESS 6
65 /********************************************************
67 ********************************************************/
69 #ifdef HAVE_SOLARIS_ACLS
72 * Compile access rights for a user to one file-system object
74 * This combines combines all access rights for a user to one fs-object and
75 * returns the result as a Darwin allowed rights ACE.
76 * This must honor trivial ACEs which are a mode_t mapping.
78 * @param path (r) path to filesystem object
79 * @param sb (r) struct stat of path
80 * @param pwd (r) struct passwd of user
81 * @param result (w) resulting Darwin allow ACE
83 * @returns 0 or -1 on error
85 static int solaris_acl_rights(const char *path,
86 const struct stat *sb,
87 const struct passwd *pwd,
91 int i, ace_count, checkgroup;
95 uint32_t rights, allowed_rights = 0, denied_rights = 0, darwin_rights;
97 /* Get ACL from file/dir */
98 EC_NEG1_LOG(ace_count = get_nfsv4_acl(path, &aces));
100 if (ace_count == 0) {
101 LOG(log_warning, logtype_afpd, "Zero ACEs from get_nfsv4_acl");
105 /* Now check requested rights */
107 do { /* Loop through ACEs */
109 flags = aces[i].a_flags;
110 type = aces[i].a_type;
111 rights = aces[i].a_access_mask;
113 if (flags & ACE_INHERIT_ONLY_ACE)
116 /* Now the tricky part: decide if ACE effects our user. I'll explain:
117 if its a dedicated (non trivial) ACE for the user
119 if its a ACE for a group we're member of
121 if its a trivial ACE_OWNER ACE and requested UUID is the owner
123 if its a trivial ACE_GROUP ACE and requested UUID is group
125 if its a trivial ACE_EVERYONE ACE
128 if (((who == pwd->pw_uid) && !(flags & (ACE_TRIVIAL|ACE_IDENTIFIER_GROUP)))
130 ((flags & ACE_IDENTIFIER_GROUP) && !(flags & ACE_GROUP) && gmem(who))
132 ((flags & ACE_OWNER) && (pwd->pw_uid == sb->st_uid))
134 ((flags & ACE_GROUP) && gmem(sb->st_gid))
136 (flags & ACE_EVERYONE)
138 /* Found an applicable ACE */
139 if (type == ACE_ACCESS_ALLOWED_ACE_TYPE)
140 allowed_rights |= rights;
141 else if (type == ACE_ACCESS_DENIED_ACE_TYPE)
142 /* Only or to denied rights if not previously allowed !! */
143 denied_rights |= ((!allowed_rights) & rights);
145 } while (++i < ace_count);
148 /* Darwin likes to ask for "delete_child" on dir,
149 "write_data" is actually the same, so we add that for dirs */
150 if (S_ISDIR(sb->st_mode) && (allowed_rights & ACE_WRITE_DATA))
151 allowed_rights |= ACE_DELETE_CHILD;
153 /* Remove denied from allowed rights */
154 allowed_rights &= ~denied_rights;
158 for (i=0; nfsv4_to_darwin_rights[i].from != 0; i++) {
159 if (allowed_rights & nfsv4_to_darwin_rights[i].from)
160 darwin_rights |= nfsv4_to_darwin_rights[i].to;
163 *result |= darwin_rights;
166 if (aces) free(aces);
172 Maps ACE array from Solaris to Darwin. Darwin ACEs are stored in network byte order.
173 Return numer of mapped ACEs or -1 on error.
174 All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
176 static int map_aces_solaris_to_darwin(const ace_t *aces,
177 darwin_ace_t *darwin_aces,
184 struct passwd *pwd = NULL;
185 struct group *grp = NULL;
187 LOG(log_maxdebug, logtype_afpd, "map_aces_solaris_to_darwin: parsing %d ACES", ace_count);
190 LOG(log_maxdebug, logtype_afpd, "ACE No. %d", ace_count + 1);
191 /* if its a ACE resulting from nfsv4 mode mapping, discard it */
192 if (aces->a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
193 LOG(log_debug, logtype_afpd, "trivial ACE");
198 if ( ! (aces->a_flags & ACE_IDENTIFIER_GROUP) ) { /* user ace */
199 LOG(log_debug, logtype_afpd, "uid: %d", aces->a_who);
200 EC_NULL_LOG(pwd = getpwuid(aces->a_who));
201 LOG(log_debug, logtype_afpd, "uid: %d -> name: %s", aces->a_who, pwd->pw_name);
202 EC_ZERO_LOG(getuuidfromname(pwd->pw_name,
204 darwin_aces->darwin_ace_uuid));
205 } else { /* group ace */
206 LOG(log_debug, logtype_afpd, "gid: %d", aces->a_who);
207 EC_NULL_LOG(grp = getgrgid(aces->a_who));
208 LOG(log_debug, logtype_afpd, "gid: %d -> name: %s", aces->a_who, grp->gr_name);
209 EC_ZERO_LOG(getuuidfromname(grp->gr_name,
211 darwin_aces->darwin_ace_uuid));
215 if (aces->a_type == ACE_ACCESS_ALLOWED_ACE_TYPE)
216 flags = DARWIN_ACE_FLAGS_PERMIT;
217 else if (aces->a_type == ACE_ACCESS_DENIED_ACE_TYPE)
218 flags = DARWIN_ACE_FLAGS_DENY;
219 else { /* unsupported type */
223 for(i=0; nfsv4_to_darwin_flags[i].from != 0; i++) {
224 if (aces->a_flags & nfsv4_to_darwin_flags[i].from)
225 flags |= nfsv4_to_darwin_flags[i].to;
227 darwin_aces->darwin_ace_flags = htonl(flags);
231 for (i=0; nfsv4_to_darwin_rights[i].from != 0; i++) {
232 if (aces->a_access_mask & nfsv4_to_darwin_rights[i].from)
233 rights |= nfsv4_to_darwin_rights[i].to;
235 darwin_aces->darwin_ace_rights = htonl(rights);
248 Maps ACE array from Darwin to Solaris. Darwin ACEs are expected in network byte order.
249 Return numer of mapped ACEs or -1 on error.
250 All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
252 static int map_aces_darwin_to_solaris(darwin_ace_t *darwin_aces,
257 int i, mapped_aces = 0;
258 uint32_t darwin_ace_flags;
259 uint32_t darwin_ace_rights;
260 uint16_t nfsv4_ace_flags;
261 uint32_t nfsv4_ace_rights;
269 nfsv4_ace_rights = 0;
272 EC_ZERO(getnamefromuuid(darwin_aces->darwin_ace_uuid, &name, &uuidtype));
280 EC_NULL_LOG(pwd = getpwnam(name));
281 nfsv4_aces->a_who = pwd->pw_uid;
284 EC_NULL_LOG(grp = getgrnam(name));
285 nfsv4_aces->a_who = (uid_t)(grp->gr_gid);
286 nfsv4_ace_flags |= ACE_IDENTIFIER_GROUP;
292 /* now type: allow/deny */
293 darwin_ace_flags = ntohl(darwin_aces->darwin_ace_flags);
294 if (darwin_ace_flags & DARWIN_ACE_FLAGS_PERMIT)
295 nfsv4_aces->a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
296 else if (darwin_ace_flags & DARWIN_ACE_FLAGS_DENY)
297 nfsv4_aces->a_type = ACE_ACCESS_DENIED_ACE_TYPE;
298 else { /* unsupported type */
303 for(i=0; darwin_to_nfsv4_flags[i].from != 0; i++) {
304 if (darwin_ace_flags & darwin_to_nfsv4_flags[i].from)
305 nfsv4_ace_flags |= darwin_to_nfsv4_flags[i].to;
309 darwin_ace_rights = ntohl(darwin_aces->darwin_ace_rights);
310 for (i=0; darwin_to_nfsv4_rights[i].from != 0; i++) {
311 if (darwin_ace_rights & darwin_to_nfsv4_rights[i].from)
312 nfsv4_ace_rights |= darwin_to_nfsv4_rights[i].to;
315 LOG(log_debug9, logtype_afpd, "map_aces_darwin_to_solaris: ACE flags: Darwin:%08x -> NFSv4:%04x", darwin_ace_flags, nfsv4_ace_flags);
316 LOG(log_debug9, logtype_afpd, "map_aces_darwin_to_solaris: ACE rights: Darwin:%08x -> NFSv4:%08x", darwin_ace_rights, nfsv4_ace_rights);
318 nfsv4_aces->a_flags = nfsv4_ace_flags;
319 nfsv4_aces->a_access_mask = nfsv4_ace_rights;
332 #endif /* HAVE_SOLARIS_ACLS */
334 /********************************************************
336 ********************************************************/
338 #ifdef HAVE_POSIX_ACLS
341 * Add entries of one acl to another acl
343 * @param aclp (rw) destination acl where new aces will be added
344 * @param acl (r) source acl where aces will be copied from
346 * @returns 0 on success, -1 on error
348 static int acl_add_acl(acl_t *aclp, const acl_t acl)
354 for (id = ACL_FIRST_ENTRY; acl_get_entry(acl, id, &se) == 1; id = ACL_NEXT_ENTRY) {
355 EC_ZERO_LOG_ERR(acl_create_entry(aclp, &de), AFPERR_MISC);
356 EC_ZERO_LOG_ERR(acl_copy_entry(de, se), AFPERR_MISC);
364 * Map Darwin ACE rights to POSIX 1e perm
366 * We can only map few rights:
367 * DARWIN_ACE_READ_DATA -> ACL_READ
368 * DARWIN_ACE_WRITE_DATA -> ACL_WRITE
369 * DARWIN_ACE_DELETE_CHILD & (is_dir == 1) -> ACL_WRITE
370 * DARWIN_ACE_EXECUTE -> ACL_EXECUTE
372 * @param entry (rw) result of the mapping
373 * @param is_dir (r) 1 for dirs, 0 for files
375 * @returns mapping result as acl_perm_t, -1 on error
377 static acl_perm_t map_darwin_right_to_posix_permset(uint32_t darwin_ace_rights, int is_dir)
381 if (darwin_ace_rights & DARWIN_ACE_READ_DATA)
384 if (darwin_ace_rights & (DARWIN_ACE_WRITE_DATA | (DARWIN_ACE_DELETE_CHILD & is_dir)))
387 if (darwin_ace_rights & DARWIN_ACE_EXECUTE)
394 * Add a ACL_USER or ACL_GROUP permission to an ACL, extending existing ACEs
396 * Add a permission of "type" for user or group "id" to an ACL. Scan the ACL
397 * for existing permissions for this type/id, if there is one add the perm,
398 * otherwise create a new ACL entry.
399 * perm can be or'ed ACL_READ, ACL_WRITE and ACL_EXECUTE.
401 * @param aclp (rw) pointer to ACL
402 * @param type (r) acl_tag_t of ACL_USER or ACL_GROUP
403 * @param id (r) uid_t uid for ACL_USER, or gid casted to uid_t for ACL_GROUP
404 * @param perm (r) acl_perm_t permissions to add
406 * @returns 0 on success, -1 on failure
408 static int posix_acl_add_perm(acl_t *aclp, acl_tag_t type, uid_t id, acl_perm_t perm)
414 int entry_id = ACL_FIRST_ENTRY;
415 acl_permset_t permset;
418 for ( ; (! found) && acl_get_entry(*aclp, entry_id, &e) == 1; entry_id = ACL_NEXT_ENTRY) {
419 EC_ZERO_LOG(acl_get_tag_type(e, &tag));
420 if (tag != ACL_USER && tag != ACL_GROUP)
422 EC_NULL_LOG(eid = (uid_t *)acl_get_qualifier(e));
423 if ((*eid == id) && (type == tag)) {
424 /* found an ACE for this type/id */
426 EC_ZERO_LOG(acl_get_permset(e, &permset));
427 EC_ZERO_LOG(acl_add_perm(permset, perm));
435 /* there was no existing ACE for this type/id */
436 EC_ZERO_LOG(acl_create_entry(aclp, &e));
437 EC_ZERO_LOG(acl_set_tag_type(e, type));
438 EC_ZERO_LOG(acl_set_qualifier(e, &id));
439 EC_ZERO_LOG(acl_get_permset(e, &permset));
440 EC_ZERO_LOG(acl_clear_perms(permset));
441 EC_ZERO_LOG(acl_add_perm(permset, perm));
442 EC_ZERO_LOG(acl_set_permset(e, permset));
446 if (eid) acl_free(eid);
452 * Map Darwin ACL to POSIX ACL.
454 * aclp must point to a acl_init'ed acl_t or an acl_t that can eg contain default ACEs.
455 * Mapping pecularities:
456 * - we create a default ace (which inherits to files and dirs) if either
457 DARWIN_ACE_FLAGS_FILE_INHERIT or DARWIN_ACE_FLAGS_DIRECTORY_INHERIT is requested
458 * - we throw away DARWIN_ACE_FLAGS_LIMIT_INHERIT (can't be mapped), thus the ACL will
461 * @param darwin_aces (r) pointer to darwin_aces buffer
462 * @param def_aclp (rw) directories: pointer to an initialized acl_t with the default acl
463 * files: *def_aclp will be NULL
464 * @param acc_aclp (rw) pointer to an initialized acl_t with the access acl
465 * @param ace_count (r) number of ACEs in darwin_aces buffer
467 * @returns 0 on success storing the result in aclp, -1 on error.
469 static int map_aces_darwin_to_posix(const darwin_ace_t *darwin_aces,
480 uint32_t darwin_ace_flags, darwin_ace_rights;
484 for ( ; ace_count != 0; ace_count--, darwin_aces++) {
485 /* type: allow/deny, posix only has allow */
486 darwin_ace_flags = ntohl(darwin_aces->darwin_ace_flags);
487 if ( ! (darwin_ace_flags & DARWIN_ACE_FLAGS_PERMIT))
490 darwin_ace_rights = ntohl(darwin_aces->darwin_ace_rights);
491 perm = map_darwin_right_to_posix_permset(darwin_ace_rights, (*def_aclp != NULL));
493 continue; /* dont add empty perm */
495 LOG(log_debug, logtype_afpd, "map_ace: no: %u, flags: %08x, darwin: %08x, posix: %02x",
496 ace_count, darwin_ace_flags, darwin_ace_rights, perm);
499 EC_ZERO_LOG(getnamefromuuid(darwin_aces->darwin_ace_uuid, &name, &uuidtype));
506 EC_NULL_LOG(pwd = getpwnam(name));
509 LOG(log_debug, logtype_afpd, "map_ace: name: %s, uid: %u", name, id);
512 EC_NULL_LOG(grp = getgrnam(name));
514 id = (uid_t)(grp->gr_gid);
515 LOG(log_debug, logtype_afpd, "map_ace: name: %s, gid: %u", name, id);
521 if (darwin_ace_flags & DARWIN_ACE_INHERIT_CONTROL_FLAGS) {
522 if (*def_aclp == NULL) {
523 /* ace request inheritane but we haven't got a default acl pointer */
524 LOG(log_warning, logtype_afpd, "map_acl: unexpected ACE, flags: 0x%04x",
528 /* add it as default ace */
529 EC_ZERO_LOG(posix_acl_add_perm(def_aclp, tag, id, perm));
532 if (! (darwin_ace_flags & DARWIN_ACE_FLAGS_ONLY_INHERIT))
533 /* if it not a "inherit only" ace, it must be added as access aces too */
534 EC_ZERO_LOG(posix_acl_add_perm(acc_aclp, tag, id, perm));
536 EC_ZERO_LOG(posix_acl_add_perm(acc_aclp, tag, id, perm));
548 * Map ACEs from POSIX to Darwin.
549 * type is either POSIX_DEFAULT_2_DARWIN or POSIX_ACCESS_2_DARWIN, cf. acl_get_file.
550 * Return number of mapped ACES, -1 on error.
552 static int map_acl_posix_to_darwin(int type, const acl_t acl, darwin_ace_t *darwin_aces)
557 int entry_id = ACL_FIRST_ENTRY;
560 acl_permset_t permset, mask;
563 struct passwd *pwd = NULL;
564 struct group *grp = NULL;
567 darwin_ace_t *saved_darwin_aces = darwin_aces;
569 LOG(log_maxdebug, logtype_afpd, "map_aces_posix_to_darwin(%s)",
570 (type & MAP_MASK) == POSIX_DEFAULT_2_DARWIN ?
571 "POSIX_DEFAULT_2_DARWIN" : "POSIX_ACCESS_2_DARWIN");
573 /* itereate through all ACEs */
574 while (acl_get_entry(acl, entry_id, &e) == 1) {
575 entry_id = ACL_NEXT_ENTRY;
578 EC_ZERO_LOG(acl_get_tag_type(e, &tag));
580 /* we return user and group ACE */
583 EC_NULL_LOG(uid = (uid_t *)acl_get_qualifier(e));
584 EC_NULL_LOG(pwd = getpwuid(*uid));
585 LOG(log_debug, logtype_afpd, "map_aces_posix_to_darwin: uid: %d -> name: %s",
587 EC_ZERO_LOG(getuuidfromname(pwd->pw_name, UUID_USER, darwin_aces->darwin_ace_uuid));
593 EC_NULL_LOG(gid = (gid_t *)acl_get_qualifier(e));
594 EC_NULL_LOG(grp = getgrgid(*gid));
595 LOG(log_debug, logtype_afpd, "map_aces_posix_to_darwin: gid: %d -> name: %s",
597 EC_ZERO_LOG(getuuidfromname(grp->gr_name, UUID_GROUP, darwin_aces->darwin_ace_uuid));
602 /* store mask so we can apply it later in a second loop */
604 EC_ZERO_LOG(acl_get_permset(e, &mask));
613 flags = DARWIN_ACE_FLAGS_PERMIT;
614 if ((type & MAP_MASK) == POSIX_DEFAULT_2_DARWIN)
615 flags |= DARWIN_ACE_FLAGS_FILE_INHERIT
616 | DARWIN_ACE_FLAGS_DIRECTORY_INHERIT
617 | DARWIN_ACE_FLAGS_ONLY_INHERIT;
618 darwin_aces->darwin_ace_flags = htonl(flags);
621 EC_ZERO_LOG(acl_get_permset(e, &permset));
624 if (acl_get_perm(permset, ACL_READ))
625 rights = DARWIN_ACE_READ_DATA
626 | DARWIN_ACE_READ_EXTATTRIBUTES
627 | DARWIN_ACE_READ_ATTRIBUTES
628 | DARWIN_ACE_READ_SECURITY;
629 if (acl_get_perm(permset, ACL_WRITE)) {
630 rights |= DARWIN_ACE_WRITE_DATA
631 | DARWIN_ACE_APPEND_DATA
632 | DARWIN_ACE_WRITE_EXTATTRIBUTES
633 | DARWIN_ACE_WRITE_ATTRIBUTES;
634 if ((type & ~MAP_MASK) == IS_DIR)
635 rights |= DARWIN_ACE_DELETE;
637 if (acl_get_perm(permset, ACL_EXECUTE))
638 rights |= DARWIN_ACE_EXECUTE;
640 darwin_aces->darwin_ace_rights = htonl(rights);
647 /* Loop through the mapped ACE buffer once again, applying the mask */
648 /* Map the mask to Darwin ACE rights first */
650 if (acl_get_perm(mask, ACL_READ))
651 rights = DARWIN_ACE_READ_DATA
652 | DARWIN_ACE_READ_EXTATTRIBUTES
653 | DARWIN_ACE_READ_ATTRIBUTES
654 | DARWIN_ACE_READ_SECURITY;
655 if (acl_get_perm(mask, ACL_WRITE)) {
656 rights |= DARWIN_ACE_WRITE_DATA
657 | DARWIN_ACE_APPEND_DATA
658 | DARWIN_ACE_WRITE_EXTATTRIBUTES
659 | DARWIN_ACE_WRITE_ATTRIBUTES;
660 if ((type & ~MAP_MASK) == IS_DIR)
661 rights |= DARWIN_ACE_DELETE;
663 if (acl_get_perm(mask, ACL_EXECUTE))
664 rights |= DARWIN_ACE_EXECUTE;
665 for (int i = mapped_aces; i > 0; i--) {
666 saved_darwin_aces->darwin_ace_rights &= htonl(rights);
670 EC_STATUS(mapped_aces);
673 if (uid) acl_free(uid);
674 if (gid) acl_free(gid);
680 * Multiplex ACL mapping (SOLARIS_2_DARWIN, DARWIN_2_SOLARIS, POSIX_2_DARWIN, DARWIN_2_POSIX).
681 * Reads from 'aces' buffer, writes to 'rbuf' buffer.
682 * Caller must provide buffer.
683 * Darwin ACEs are read and written in network byte order.
684 * Needs to know how many ACEs are in the ACL (ace_count) for Solaris ACLs.
685 * Ignores trivial ACEs.
686 * Return no of mapped ACEs or -1 on error.
688 static int map_acl(int type, void *acl, darwin_ace_t *buf, int ace_count)
692 LOG(log_debug9, logtype_afpd, "map_acl: BEGIN");
694 switch (type & MAP_MASK) {
696 #ifdef HAVE_SOLARIS_ACLS
697 case SOLARIS_2_DARWIN:
698 mapped_aces = map_aces_solaris_to_darwin( acl, buf, ace_count);
701 case DARWIN_2_SOLARIS:
702 mapped_aces = map_aces_darwin_to_solaris( buf, acl, ace_count);
704 #endif /* HAVE_SOLARIS_ACLS */
706 #ifdef HAVE_POSIX_ACLS
707 case POSIX_DEFAULT_2_DARWIN:
708 mapped_aces = map_acl_posix_to_darwin(type, (const acl_t)acl, buf);
711 case POSIX_ACCESS_2_DARWIN:
712 mapped_aces = map_acl_posix_to_darwin(type, (const acl_t)acl, buf);
715 case DARWIN_2_POSIX_DEFAULT:
718 case DARWIN_2_POSIX_ACCESS:
720 #endif /* HAVE_POSIX_ACLS */
727 LOG(log_debug9, logtype_afpd, "map_acl: END");
731 /* Get ACL from object omitting trivial ACEs. Map to Darwin ACL style and
732 store Darwin ACL at rbuf. Add length of ACL written to rbuf to *rbuflen.
733 Returns 0 on success, -1 on error. */
734 static int get_and_map_acl(char *name, char *rbuf, size_t *rbuflen)
739 uint32_t *darwin_ace_count = (u_int32_t *)rbuf;
740 #ifdef HAVE_SOLARIS_ACLS
744 #ifdef HAVE_POSIX_ACLS
747 LOG(log_debug9, logtype_afpd, "get_and_map_acl: BEGIN");
749 /* Skip length and flags */
754 #ifdef HAVE_SOLARIS_ACLS
755 EC_NEG1(ace_count = get_nfsv4_acl(name, &aces));
756 EC_NEG1(mapped_aces = map_acl(SOLARIS_2_DARWIN, aces, (darwin_ace_t *)rbuf, ace_count));
757 #endif /* HAVE_SOLARIS_ACLS */
759 #ifdef HAVE_POSIX_ACLS
760 acl_t defacl = NULL , accacl = NULL;
762 /* stat to check if its a dir */
763 EC_ZERO_LOG(stat(name, &st));
765 /* if its a dir, check for default acl too */
767 if (S_ISDIR(st.st_mode)) {
769 EC_NULL_LOG(defacl = acl_get_file(name, ACL_TYPE_DEFAULT));
770 EC_NEG1(mapped_aces = map_acl(POSIX_DEFAULT_2_DARWIN | dirflag,
772 (darwin_ace_t *)rbuf,
776 EC_NULL_LOG(accacl = acl_get_file(name, ACL_TYPE_ACCESS));
779 EC_NEG1(tmp = map_acl(POSIX_ACCESS_2_DARWIN | dirflag,
781 (darwin_ace_t *)(rbuf + mapped_aces * sizeof(darwin_ace_t)),
784 #endif /* HAVE_POSIX_ACLS */
786 LOG(log_debug, logtype_afpd, "get_and_map_acl: mapped %d ACEs", mapped_aces);
788 *darwin_ace_count = htonl(mapped_aces);
789 *rbuflen += sizeof(darwin_acl_header_t) + (mapped_aces * sizeof(darwin_ace_t));
794 #ifdef HAVE_SOLARIS_ACLS
795 if (aces) free(aces);
797 #ifdef HAVE_POSIX_ACLS
798 if (defacl) acl_free(defacl);
799 if (accacl) acl_free(accacl);
800 #endif /* HAVE_POSIX_ACLS */
802 LOG(log_debug9, logtype_afpd, "get_and_map_acl: END");
807 /* Removes all non-trivial ACLs from object. Returns full AFPERR code. */
808 static int remove_acl(const struct vol *vol,const char *path, int dir)
812 #if (defined HAVE_SOLARIS_ACLS || defined HAVE_POSIX_ACLS)
813 /* Ressource etc. first */
814 if ((ret = vol->vfs->vfs_remove_acl(vol, path, dir)) != AFP_OK)
816 /* now the data fork or dir */
817 ret = remove_acl_vfs(path);
824 - the client sends a complete list of ACEs, not only new ones. So we dont need to do
825 any combination business (one exception being 'kFileSec_Inherit': see next)
826 - client might request that we add inherited ACEs via 'kFileSec_Inherit'.
827 We will store inherited ACEs first, which is Darwins canonical order.
828 - returns AFPerror code
830 #ifdef HAVE_SOLARIS_ACLS
831 static int set_acl(const struct vol *vol,
838 int i, nfsv4_ace_count;
839 int tocopy_aces_count = 0, new_aces_count = 0, trivial_ace_count = 0;
840 ace_t *old_aces, *new_aces = NULL;
843 LOG(log_debug9, logtype_afpd, "set_acl: BEGIN");
846 /* inherited + trivial ACEs */
847 flags = ACE_INHERITED_ACE | ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
849 /* only trivial ACEs */
850 flags = ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
852 /* Get existing ACL and count ACEs which have to be copied */
853 if ((nfsv4_ace_count = get_nfsv4_acl(name, &old_aces)) == -1)
855 for ( i=0; i < nfsv4_ace_count; i++) {
856 if (old_aces[i].a_flags & flags)
860 /* Now malloc buffer exactly sized to fit all new ACEs */
861 if ((new_aces = malloc((ace_count + tocopy_aces_count) * sizeof(ace_t))) == NULL) {
862 LOG(log_error, logtype_afpd, "set_acl: malloc %s", strerror(errno));
863 EC_STATUS(AFPERR_MISC);
867 /* Start building new ACL */
869 /* Copy local inherited ACEs. Therefore we have 'Darwin canonical order' (see chmod there):
870 inherited ACEs first. */
872 for (i=0; i < nfsv4_ace_count; i++) {
873 if (old_aces[i].a_flags & ACE_INHERITED_ACE) {
874 memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
879 LOG(log_debug7, logtype_afpd, "set_acl: copied %d inherited ACEs", new_aces_count);
881 /* Now the ACEs from the client */
882 if ((ret = (map_acl(DARWIN_2_SOLARIS,
883 &new_aces[new_aces_count],
885 ace_count))) == -1) {
886 EC_STATUS(AFPERR_PARAM);
889 new_aces_count += ret;
890 LOG(log_debug7, logtype_afpd, "set_acl: mapped %d ACEs from client", ret);
892 /* Now copy the trivial ACEs */
893 for (i=0; i < nfsv4_ace_count; i++) {
894 if (old_aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
895 memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
900 LOG(log_debug7, logtype_afpd, "set_acl: copied %d trivial ACEs", trivial_ace_count);
902 /* Ressourcefork first.
903 Note: for dirs we set the same ACL on the .AppleDouble/.Parent _file_. This
904 might be strange for ACE_DELETE_CHILD and for inheritance flags. */
905 if ((ret = (vol->vfs->vfs_acl(vol, name, ACE_SETACL, new_aces_count, new_aces))) != 0) {
906 LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
907 if (errno == (EACCES | EPERM))
908 EC_STATUS(AFPERR_ACCESS);
909 else if (errno == ENOENT)
910 EC_STATUS(AFPERR_NOITEM);
912 EC_STATUS(AFPERR_MISC);
915 if ((ret = (acl(name, ACE_SETACL, new_aces_count, new_aces))) != 0) {
916 LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
917 if (errno == (EACCES | EPERM))
918 EC_STATUS(AFPERR_ACCESS);
919 else if (errno == ENOENT)
920 EC_STATUS(AFPERR_NOITEM);
922 EC_STATUS(AFPERR_MISC);
929 if (old_aces) free(old_aces);
930 if (new_aces) free(new_aces);
932 LOG(log_debug9, logtype_afpd, "set_acl: END");
935 #endif /* HAVE_SOLARIS_ACLS */
937 #ifdef HAVE_POSIX_ACLS
938 static int set_acl(const struct vol *vol,
945 acl_t def_acl = NULL;
946 acl_t acc_acl = NULL;
948 LOG(log_maxdebug, logtype_afpd, "set_acl: BEGIN");
951 EC_ZERO_LOG_ERR(stat(name, &st), AFPERR_NOOBJ);
953 /* seed default ACL with access ACL */
954 if (S_ISDIR(st.st_mode))
955 EC_NULL_LOG_ERR(def_acl = acl_get_file(name, ACL_TYPE_ACCESS), AFPERR_MISC);
957 /* for files def_acl will be NULL */
959 /* create access acl from mode */
960 EC_NULL_LOG_ERR(acc_acl = acl_from_mode(st.st_mode), AFPERR_MISC);
962 /* adds the clients aces */
963 EC_ZERO_ERR(map_aces_darwin_to_posix(daces, &def_acl, &acc_acl, ace_count), AFPERR_MISC);
965 /* calcuate ACL mask */
966 EC_ZERO_LOG_ERR(acl_calc_mask(&acc_acl), AFPERR_MISC);
969 EC_ZERO_LOG_ERR(acl_valid(acc_acl), AFPERR_MISC);
972 EC_ZERO_LOG_ERR(acl_set_file(name, ACL_TYPE_ACCESS, acc_acl), AFPERR_MISC);
973 EC_ZERO_LOG_ERR(vol->vfs->vfs_acl(vol, name, ACL_TYPE_ACCESS, 0, acc_acl), AFPERR_MISC);
976 EC_ZERO_LOG_ERR(acl_set_file(name, ACL_TYPE_DEFAULT, def_acl), AFPERR_MISC);
977 EC_ZERO_LOG_ERR(vol->vfs->vfs_acl(vol, name, ACL_TYPE_DEFAULT, 0, def_acl), AFPERR_MISC);
984 LOG(log_maxdebug, logtype_afpd, "set_acl: END");
987 #endif /* HAVE_POSIX_ACLS */
990 * Checks if a given UUID has requested_rights(type darwin_ace_rights) for path.
992 * Note: this gets called frequently and is a good place for optimizations !
994 * @param vol (r) volume
995 * @param dir (r) directory
996 * @param path (r) path to filesystem object
997 * @param uuid (r) UUID of user
998 * @param requested_rights (r) requested Darwin ACE
1000 * @returns AFP result code
1002 static int check_acl_access(const struct vol *vol,
1003 const struct dir *dir,
1006 uint32_t requested_rights)
1009 uint32_t allowed_rights = 0;
1010 char *username = NULL;
1011 uuidtype_t uuidtype;
1014 bstring parent = NULL;
1016 LOG(log_maxdebug, logtype_afpd, "check_access: Request: 0x%08x", requested_rights);
1018 /* Get uid or gid from UUID */
1019 EC_ZERO_LOG_ERR(getnamefromuuid(uuid, &username, &uuidtype), AFPERR_PARAM);
1020 EC_ZERO_LOG_ERR(lstat(path, &st), AFPERR_PARAM);
1024 LOG(log_warning, logtype_afpd, "check_access: afp_access not supported for groups");
1025 EC_STATUS(AFPERR_MISC);
1029 LOG(log_warning, logtype_afpd, "check_access: local UUID");
1030 EC_STATUS(AFPERR_MISC);
1034 EC_NULL_LOG_ERR(pwd = getpwnam(username), AFPERR_MISC);
1036 #ifdef HAVE_SOLARIS_ACLS
1037 EC_ZERO_LOG(solaris_acl_rights(path, &st, pwd, &allowed_rights));
1039 #ifdef HAVE_POSIX_ACLS
1042 LOG(log_debug, logtype_afpd, "allowed rights: 0x%08x", allowed_rights);
1045 * The DARWIN_ACE_DELETE right might implicitly result from write acces to the parent
1046 * directory. As it seems the 10.6 AFP client is puzzled when this right is not
1047 * allowed where a delete would succeed because the parent dir gives write perms.
1048 * So we check the parent dir for write access and set the right accordingly.
1049 * Currentyl acl2ownermode calls us with dir = NULL, because it doesn't make sense
1050 * there to do this extra check -- afaict.
1052 if (vol && dir && (requested_rights & DARWIN_ACE_DELETE)) {
1054 uint32_t parent_rights = 0;
1056 if (dir->d_did == DIRDID_ROOT_PARENT) {
1057 /* use volume path */
1058 EC_NULL_LOG_ERR(parent = bfromcstr(vol->v_path), AFPERR_MISC);
1060 /* build path for parent */
1061 EC_NULL_LOG_ERR(parent = bstrcpy(dir->d_fullpath), AFPERR_MISC);
1062 EC_ZERO_LOG_ERR(bconchar(parent, '/'), AFPERR_MISC);
1063 EC_ZERO_LOG_ERR(bcatcstr(parent, path), AFPERR_MISC);
1064 EC_NEG1_LOG_ERR(i = bstrrchr(parent, '/'), AFPERR_MISC);
1065 EC_ZERO_LOG_ERR(binsertch(parent, i, 1, 0), AFPERR_MISC);
1068 LOG(log_debug, logtype_afpd,"parent: %s", cfrombstr(parent));
1069 EC_ZERO_LOG_ERR(lstat(cfrombstr(parent), &st), AFPERR_MISC);
1071 #ifdef HAVE_SOLARIS_ACLS
1072 EC_ZERO_LOG(solaris_acl_rights(cfrombstr(parent), &st, pwd, &parent_rights));
1074 #ifdef HAVE_POSIX_ACLS
1076 if (parent_rights & (DARWIN_ACE_WRITE_DATA | DARWIN_ACE_DELETE_CHILD))
1077 allowed_rights |= DARWIN_ACE_DELETE; /* man, that was a lot of work! */
1080 if ((requested_rights & allowed_rights) != requested_rights) {
1081 LOG(log_debug, logtype_afpd, "some requested right wasn't allowed: 0x%08x / 0x%08x",
1082 requested_rights, allowed_rights);
1083 EC_STATUS(AFPERR_ACCESS);
1085 LOG(log_debug, logtype_afpd, "all requested rights are allowed: 0x%08x",
1091 if (username) free(username);
1092 if (parent) bdestroy(parent);
1097 /********************************************************
1099 ********************************************************/
1101 int afp_access(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
1106 uint32_t did, darwin_ace_rights;
1108 struct path *s_path;
1114 memcpy(&vid, ibuf, sizeof( vid ));
1115 ibuf += sizeof(vid);
1116 if (NULL == ( vol = getvolbyvid( vid ))) {
1117 LOG(log_error, logtype_afpd, "afp_access: error getting volid:%d", vid);
1118 return AFPERR_NOOBJ;
1121 memcpy(&did, ibuf, sizeof( did ));
1122 ibuf += sizeof( did );
1123 if (NULL == ( dir = dirlookup( vol, did ))) {
1124 LOG(log_error, logtype_afpd, "afp_access: error getting did:%d", did);
1131 /* Store UUID address */
1132 uuid = (uuidp_t)ibuf;
1133 ibuf += UUID_BINSIZE;
1135 /* Store ACE rights */
1136 memcpy(&darwin_ace_rights, ibuf, 4);
1137 darwin_ace_rights = ntohl(darwin_ace_rights);
1140 /* get full path and handle file/dir subtleties in netatalk code*/
1141 if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
1142 LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
1143 return AFPERR_NOOBJ;
1145 if (!s_path->st_valid)
1146 of_statdir(vol, s_path);
1147 if ( s_path->st_errno != 0 ) {
1148 LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
1149 return AFPERR_NOOBJ;
1152 ret = check_acl_access(vol, dir, s_path->u_name, uuid, darwin_ace_rights);
1157 int afp_getacl(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
1163 uint16_t vid, bitmap;
1164 struct path *s_path;
1168 LOG(log_debug9, logtype_afpd, "afp_getacl: BEGIN");
1172 memcpy(&vid, ibuf, sizeof( vid ));
1173 ibuf += sizeof(vid);
1174 if (NULL == ( vol = getvolbyvid( vid ))) {
1175 LOG(log_error, logtype_afpd, "afp_getacl: error getting volid:%d", vid);
1176 return AFPERR_NOOBJ;
1179 memcpy(&did, ibuf, sizeof( did ));
1180 ibuf += sizeof( did );
1181 if (NULL == ( dir = dirlookup( vol, did ))) {
1182 LOG(log_error, logtype_afpd, "afp_getacl: error getting did:%d", did);
1186 memcpy(&bitmap, ibuf, sizeof( bitmap ));
1187 memcpy(rbuf, ibuf, sizeof( bitmap ));
1188 bitmap = ntohs( bitmap );
1189 ibuf += sizeof( bitmap );
1190 rbuf += sizeof( bitmap );
1191 *rbuflen += sizeof( bitmap );
1193 /* skip maxreplysize */
1196 /* get full path and handle file/dir subtleties in netatalk code*/
1197 if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
1198 LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
1199 return AFPERR_NOOBJ;
1201 if (!s_path->st_valid)
1202 of_statdir(vol, s_path);
1203 if ( s_path->st_errno != 0 ) {
1204 LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
1205 return AFPERR_NOOBJ;
1208 /* Shall we return owner UUID ? */
1209 if (bitmap & kFileSec_UUID) {
1210 LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner user UUID");
1211 if (NULL == (pw = getpwuid(s_path->st.st_uid)))
1213 LOG(log_debug, logtype_afpd, "afp_getacl: got uid: %d, name: %s", s_path->st.st_uid, pw->pw_name);
1214 if ((ret = getuuidfromname(pw->pw_name, UUID_USER, rbuf)) != 0)
1216 rbuf += UUID_BINSIZE;
1217 *rbuflen += UUID_BINSIZE;
1220 /* Shall we return group UUID ? */
1221 if (bitmap & kFileSec_GRPUUID) {
1222 LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner group UUID");
1223 if (NULL == (gr = getgrgid(s_path->st.st_gid)))
1225 LOG(log_debug, logtype_afpd, "afp_getacl: got gid: %d, name: %s", s_path->st.st_gid, gr->gr_name);
1226 if ((ret = getuuidfromname(gr->gr_name, UUID_GROUP, rbuf)) != 0)
1228 rbuf += UUID_BINSIZE;
1229 *rbuflen += UUID_BINSIZE;
1232 /* Shall we return ACL ? */
1233 if (bitmap & kFileSec_ACL) {
1234 LOG(log_debug, logtype_afpd, "afp_getacl: client requested files ACL");
1235 get_and_map_acl(s_path->u_name, rbuf, rbuflen);
1238 LOG(log_debug9, logtype_afpd, "afp_getacl: END");
1242 int afp_setacl(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
1248 uint16_t vid, bitmap;
1249 struct path *s_path;
1251 LOG(log_debug9, logtype_afpd, "afp_setacl: BEGIN");
1255 memcpy(&vid, ibuf, sizeof( vid ));
1256 ibuf += sizeof(vid);
1257 if (NULL == ( vol = getvolbyvid( vid ))) {
1258 LOG(log_error, logtype_afpd, "afp_setacl: error getting volid:%d", vid);
1259 return AFPERR_NOOBJ;
1262 memcpy(&did, ibuf, sizeof( did ));
1263 ibuf += sizeof( did );
1264 if (NULL == ( dir = dirlookup( vol, did ))) {
1265 LOG(log_error, logtype_afpd, "afp_setacl: error getting did:%d", did);
1269 memcpy(&bitmap, ibuf, sizeof( bitmap ));
1270 bitmap = ntohs( bitmap );
1271 ibuf += sizeof( bitmap );
1273 /* get full path and handle file/dir subtleties in netatalk code*/
1274 if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
1275 LOG(log_error, logtype_afpd, "afp_setacl: cname got an error!");
1276 return AFPERR_NOOBJ;
1278 if (!s_path->st_valid)
1279 of_statdir(vol, s_path);
1280 if ( s_path->st_errno != 0 ) {
1281 LOG(log_error, logtype_afpd, "afp_setacl: cant stat");
1282 return AFPERR_NOOBJ;
1284 LOG(log_debug, logtype_afpd, "afp_setacl: unixname: %s", s_path->u_name);
1287 if ((unsigned long)ibuf & 1)
1290 /* Start processing request */
1292 /* Change owner: dont even try */
1293 if (bitmap & kFileSec_UUID) {
1294 LOG(log_note, logtype_afpd, "afp_setacl: change owner request, discarded");
1295 ret = AFPERR_ACCESS;
1296 ibuf += UUID_BINSIZE;
1299 /* Change group: certain changes might be allowed, so try it. FIXME: not implemented yet. */
1300 if (bitmap & kFileSec_UUID) {
1301 LOG(log_note, logtype_afpd, "afp_setacl: change group request, not supported");
1303 ibuf += UUID_BINSIZE;
1307 if (bitmap & kFileSec_REMOVEACL) {
1308 LOG(log_debug, logtype_afpd, "afp_setacl: Remove ACL request.");
1309 if ((ret = remove_acl(vol, s_path->u_name, S_ISDIR(s_path->st.st_mode))) != AFP_OK)
1310 LOG(log_error, logtype_afpd, "afp_setacl: error from remove_acl");
1314 if (bitmap & kFileSec_ACL) {
1315 LOG(log_debug, logtype_afpd, "afp_setacl: Change ACL request.");
1316 /* Get no of ACEs the client put on the wire */
1318 memcpy(&ace_count, ibuf, sizeof(uint32_t));
1319 ace_count = htonl(ace_count);
1320 ibuf += 8; /* skip ACL flags (see acls.h) */
1324 (bitmap & kFileSec_Inherit),
1325 (darwin_ace_t *)ibuf,
1330 LOG(log_warning, logtype_afpd, "afp_setacl(\"%s/%s\"): error",
1331 getcwdpath(), s_path->u_name);
1336 LOG(log_debug9, logtype_afpd, "afp_setacl: END");
1341 unix.c/accessmode calls this: map ACL to OS 9 mode
1343 int acltoownermode(char *path, struct stat *st, uid_t uid, struct maccess *ma)
1347 uint32_t rights = 0;
1349 if ( ! (AFPobj->options.flags & OPTION_UUID)
1351 ! (AFPobj->options.flags & OPTION_ACL2MACCESS))
1354 LOG(log_maxdebug, logtype_afpd, "acltoownermode('%s')", path);
1356 EC_NULL_LOG(pw = getpwuid(uid));
1358 #ifdef HAVE_SOLARIS_ACLS
1359 EC_ZERO_LOG(solaris_acl_rights(path, st, pw, &rights));
1361 #ifdef HAVE_POSIX_ACLS
1364 LOG(log_debug, logtype_afpd, "rights: 0x%08x", rights);
1366 LOG(log_maxdebug, logtype_afpd, "acltoownermode: ma_user before: %04o",ma->ma_user);
1367 if (rights & DARWIN_ACE_READ_DATA)
1368 ma->ma_user |= AR_UREAD;
1369 if (rights & DARWIN_ACE_WRITE_DATA)
1370 ma->ma_user |= AR_UWRITE;
1371 if (rights & (DARWIN_ACE_EXECUTE | DARWIN_ACE_SEARCH))
1372 ma->ma_user |= AR_USEARCH;
1373 LOG(log_maxdebug, logtype_afpd, "acltoownermode: ma_user after: %04o", ma->ma_user);
1380 We're being called at the end of afp_createdir. We're (hopefully) inside dir
1381 and ".AppleDouble" and ".AppleDouble/.Parent" should have already been created.
1382 We then inherit any explicit ACE from "." to ".AppleDouble" and ".AppleDouble/.Parent".
1383 FIXME: add to VFS layer ?
1385 #ifdef HAVE_SOLARIS_ACLS
1386 void addir_inherit_acl(const struct vol *vol)
1388 ace_t *diraces = NULL, *adaces = NULL, *combinedaces = NULL;
1389 int diracecount, adacecount;
1391 LOG(log_debug9, logtype_afpd, "addir_inherit_acl: BEGIN");
1393 /* Check if ACLs are enabled for the volume */
1394 if (vol->v_flags & AFPVOL_ACLS) {
1396 if ((diracecount = get_nfsv4_acl(".", &diraces)) <= 0)
1398 /* Remove any trivial ACE from "." */
1399 if ((diracecount = strip_trivial_aces(&diraces, diracecount)) <= 0)
1403 Inherit to ".AppleDouble"
1406 if ((adacecount = get_nfsv4_acl(".AppleDouble", &adaces)) <= 0)
1408 /* Remove any non-trivial ACE from ".AppleDouble" */
1409 if ((adacecount = strip_nontrivial_aces(&adaces, adacecount)) <= 0)
1413 if ((combinedaces = concat_aces(diraces, diracecount, adaces, adacecount)) == NULL)
1416 /* Now set new acl */
1417 if ((acl(".AppleDouble", ACE_SETACL, diracecount + adacecount, combinedaces)) != 0)
1418 LOG(log_error, logtype_afpd, "addir_inherit_acl: acl: %s", strerror(errno));
1423 combinedaces = NULL;
1426 Inherit to ".AppleDouble/.Parent"
1429 if ((adacecount = get_nfsv4_acl(".AppleDouble/.Parent", &adaces)) <= 0)
1431 if ((adacecount = strip_nontrivial_aces(&adaces, adacecount)) <= 0)
1435 if ((combinedaces = concat_aces(diraces, diracecount, adaces, adacecount)) == NULL)
1438 /* Now set new acl */
1439 if ((acl(".AppleDouble/.Parent", ACE_SETACL, diracecount + adacecount, combinedaces)) != 0)
1440 LOG(log_error, logtype_afpd, "addir_inherit_acl: acl: %s", strerror(errno));
1446 LOG(log_debug9, logtype_afpd, "addir_inherit_acl: END");
1452 #endif /* HAVE_SOLARIS_ACLS */
1454 #ifdef HAVE_POSIX_ACLS
1455 void addir_inherit_acl(const struct vol *vol)
1459 #endif /* HAVE_POSIX_ACLS */