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
32 #ifdef HAVE_ACL_LIBACL_H
33 #include <acl/libacl.h>
36 #include <atalk/errchk.h>
37 #include <atalk/adouble.h>
38 #include <atalk/vfs.h>
39 #include <atalk/afp.h>
40 #include <atalk/util.h>
41 #include <atalk/cnid.h>
42 #include <atalk/logger.h>
43 #include <atalk/uuid.h>
44 #include <atalk/acl.h>
45 #include <atalk/bstrlib.h>
46 #include <atalk/bstradd.h>
48 #include "directory.h"
54 #include "acl_mappings.h"
58 #define SOLARIS_2_DARWIN 1
59 #define DARWIN_2_SOLARIS 2
60 #define POSIX_DEFAULT_2_DARWIN 3
61 #define POSIX_ACCESS_2_DARWIN 4
62 #define DARWIN_2_POSIX_DEFAULT 5
63 #define DARWIN_2_POSIX_ACCESS 6
68 /********************************************************
70 ********************************************************/
72 #ifdef HAVE_SOLARIS_ACLS
75 * Compile access rights for a user to one file-system object
77 * This combines combines all access rights for a user to one fs-object and
78 * returns the result as a Darwin allowed rights ACE.
79 * This must honor trivial ACEs which are a mode_t mapping.
81 * @param path (r) path to filesystem object
82 * @param sb (r) struct stat of path
83 * @param result (w) resulting Darwin allow ACE
85 * @returns 0 or -1 on error
87 static int solaris_acl_rights(const char *path,
88 const struct stat *sb,
92 int i, ace_count, checkgroup;
96 uint32_t rights, allowed_rights = 0, denied_rights = 0, darwin_rights;
98 /* Get ACL from file/dir */
99 EC_NEG1_LOG(ace_count = get_nfsv4_acl(path, &aces));
104 /* Now check requested rights */
106 do { /* Loop through ACEs */
108 flags = aces[i].a_flags;
109 type = aces[i].a_type;
110 rights = aces[i].a_access_mask;
112 if (flags & ACE_INHERIT_ONLY_ACE)
115 /* Now the tricky part: decide if ACE effects our user. I'll explain:
116 if its a dedicated (non trivial) ACE for the user
118 if its a ACE for a group we're member of
120 if its a trivial ACE_OWNER ACE and requested UUID is the owner
122 if its a trivial ACE_GROUP ACE and requested UUID is group
124 if its a trivial ACE_EVERYONE ACE
127 if (((who == uuid) && !(flags & (ACE_TRIVIAL|ACE_IDENTIFIER_GROUP)))
129 ((flags & ACE_IDENTIFIER_GROUP) && !(flags & ACE_GROUP) && gmem(who))
131 ((flags & ACE_OWNER) && (uuid == sb->st_uid))
133 ((flags & ACE_GROUP) && !(uuid == sb->st_uid) && gmem(sb->st_gid))
135 (flags & ACE_EVERYONE && !(uuid == sb->st_uid) && !gmem(sb->st_gid))
137 /* Found an applicable ACE */
138 if (type == ACE_ACCESS_ALLOWED_ACE_TYPE)
139 allowed_rights |= rights;
140 else if (type == ACE_ACCESS_DENIED_ACE_TYPE)
141 /* Only or to denied rights if not previously allowed !! */
142 denied_rights |= ((!allowed_rights) & rights);
144 } while (++i < ace_count);
147 /* Darwin likes to ask for "delete_child" on dir,
148 "write_data" is actually the same, so we add that for dirs */
149 if (S_ISDIR(sb->st_mode) && (allowed_rights & ACE_WRITE_DATA))
150 allowed_rights |= ACE_DELETE_CHILD;
152 /* Remove denied from allowed rights */
153 allowed_rights &= ~denied_rights;
157 for (i=0; nfsv4_to_darwin_rights[i].from != 0; i++) {
158 if (allowed_rights & nfsv4_to_darwin_rights[i].from)
159 darwin_rights |= nfsv4_to_darwin_rights[i].to;
162 *result |= darwin_rights;
165 if (aces) free(aces);
171 Maps ACE array from Solaris to Darwin. Darwin ACEs are stored in network byte order.
172 Return numer of mapped ACEs or -1 on error.
173 All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
175 static int map_aces_solaris_to_darwin(const ace_t *aces,
176 darwin_ace_t *darwin_aces,
183 struct passwd *pwd = NULL;
184 struct group *grp = NULL;
186 LOG(log_maxdebug, logtype_afpd, "map_aces_solaris_to_darwin: parsing %d ACES", ace_count);
189 LOG(log_maxdebug, logtype_afpd, "ACE No. %d", ace_count + 1);
190 /* if its a ACE resulting from nfsv4 mode mapping, discard it */
191 if (aces->a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
192 LOG(log_debug, logtype_afpd, "trivial ACE");
197 if ( ! (aces->a_flags & ACE_IDENTIFIER_GROUP) ) { /* user ace */
198 LOG(log_debug, logtype_afpd, "uid: %d", aces->a_who);
199 EC_NULL_LOG(pwd = getpwuid(aces->a_who));
200 LOG(log_debug, logtype_afpd, "uid: %d -> name: %s", aces->a_who, pwd->pw_name);
201 EC_ZERO_LOG(getuuidfromname(pwd->pw_name,
203 darwin_aces->darwin_ace_uuid));
204 } else { /* group ace */
205 LOG(log_debug, logtype_afpd, "gid: %d", aces->a_who);
206 EC_NULL_LOG(grp = getgrgid(aces->a_who));
207 LOG(log_debug, logtype_afpd, "gid: %d -> name: %s", aces->a_who, grp->gr_name);
208 EC_ZERO_LOG(getuuidfromname(grp->gr_name,
210 darwin_aces->darwin_ace_uuid));
214 if (aces->a_type == ACE_ACCESS_ALLOWED_ACE_TYPE)
215 flags = DARWIN_ACE_FLAGS_PERMIT;
216 else if (aces->a_type == ACE_ACCESS_DENIED_ACE_TYPE)
217 flags = DARWIN_ACE_FLAGS_DENY;
218 else { /* unsupported type */
222 for(i=0; nfsv4_to_darwin_flags[i].from != 0; i++) {
223 if (aces->a_flags & nfsv4_to_darwin_flags[i].from)
224 flags |= nfsv4_to_darwin_flags[i].to;
226 darwin_aces->darwin_ace_flags = htonl(flags);
230 for (i=0; nfsv4_to_darwin_rights[i].from != 0; i++) {
231 if (aces->a_access_mask & nfsv4_to_darwin_rights[i].from)
232 rights |= nfsv4_to_darwin_rights[i].to;
234 darwin_aces->darwin_ace_rights = htonl(rights);
247 Maps ACE array from Darwin to Solaris. Darwin ACEs are expected in network byte order.
248 Return numer of mapped ACEs or -1 on error.
249 All errors while mapping (e.g. getting UUIDs from LDAP) are fatal.
251 static int map_aces_darwin_to_solaris(darwin_ace_t *darwin_aces,
256 int i, mapped_aces = 0;
257 uint32_t darwin_ace_flags;
258 uint32_t darwin_ace_rights;
259 uint16_t nfsv4_ace_flags;
260 uint32_t nfsv4_ace_rights;
268 nfsv4_ace_rights = 0;
271 EC_ZERO(getnamefromuuid(darwin_aces->darwin_ace_uuid, &name, &uuidtype));
274 EC_NULL_LOG(pwd = getpwnam(name));
275 nfsv4_aces->a_who = pwd->pw_uid;
278 EC_NULL_LOG(grp = getgrnam(name));
279 nfsv4_aces->a_who = (uid_t)(grp->gr_gid);
280 nfsv4_ace_flags |= ACE_IDENTIFIER_GROUP;
283 LOG(log_error, logtype_afpd, "map_aces_darwin_to_solaris: unkown uuidtype");
289 /* now type: allow/deny */
290 darwin_ace_flags = ntohl(darwin_aces->darwin_ace_flags);
291 if (darwin_ace_flags & DARWIN_ACE_FLAGS_PERMIT)
292 nfsv4_aces->a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
293 else if (darwin_ace_flags & DARWIN_ACE_FLAGS_DENY)
294 nfsv4_aces->a_type = ACE_ACCESS_DENIED_ACE_TYPE;
295 else { /* unsupported type */
300 for(i=0; darwin_to_nfsv4_flags[i].from != 0; i++) {
301 if (darwin_ace_flags & darwin_to_nfsv4_flags[i].from)
302 nfsv4_ace_flags |= darwin_to_nfsv4_flags[i].to;
306 darwin_ace_rights = ntohl(darwin_aces->darwin_ace_rights);
307 for (i=0; darwin_to_nfsv4_rights[i].from != 0; i++) {
308 if (darwin_ace_rights & darwin_to_nfsv4_rights[i].from)
309 nfsv4_ace_rights |= darwin_to_nfsv4_rights[i].to;
312 LOG(log_debug9, logtype_afpd,
313 "map_aces_darwin_to_solaris: ACE flags: Darwin:%08x -> NFSv4:%04x",
314 darwin_ace_flags, nfsv4_ace_flags);
315 LOG(log_debug9, logtype_afpd,
316 "map_aces_darwin_to_solaris: ACE rights: Darwin:%08x -> NFSv4:%08x",
317 darwin_ace_rights, nfsv4_ace_rights);
319 nfsv4_aces->a_flags = nfsv4_ace_flags;
320 nfsv4_aces->a_access_mask = nfsv4_ace_rights;
333 #endif /* HAVE_SOLARIS_ACLS */
335 /********************************************************
337 ********************************************************/
339 #ifdef HAVE_POSIX_ACLS
341 static uint32_t posix_permset_to_darwin_rights(acl_entry_t e, int is_dir)
345 acl_permset_t permset;
347 EC_ZERO_LOG(acl_get_permset(e, &permset));
349 #ifdef HAVE_ACL_GET_PERM_NP
350 if (acl_get_perm_np(permset, ACL_READ))
352 if (acl_get_perm(permset, ACL_READ))
354 rights = DARWIN_ACE_READ_DATA
355 | DARWIN_ACE_READ_EXTATTRIBUTES
356 | DARWIN_ACE_READ_ATTRIBUTES
357 | DARWIN_ACE_READ_SECURITY;
358 #ifdef HAVE_ACL_GET_PERM_NP
359 if (acl_get_perm_np(permset, ACL_WRITE)) {
361 if (acl_get_perm(permset, ACL_WRITE)) {
363 rights |= DARWIN_ACE_WRITE_DATA
364 | DARWIN_ACE_APPEND_DATA
365 | DARWIN_ACE_WRITE_EXTATTRIBUTES
366 | DARWIN_ACE_WRITE_ATTRIBUTES;
368 rights |= DARWIN_ACE_DELETE_CHILD;
370 #ifdef HAVE_ACL_GET_PERM_NP
371 if (acl_get_perm_np(permset, ACL_EXECUTE))
373 if (acl_get_perm(permset, ACL_EXECUTE))
375 rights |= DARWIN_ACE_EXECUTE;
378 LOG(log_maxdebug, logtype_afpd, "mapped rights: 0x%08x", rights);
383 * Compile access rights for a user to one file-system object
385 * This combines combines all access rights for a user to one fs-object and
386 * returns the result as a Darwin allowed rights ACE.
387 * This must honor trivial ACEs which are a mode_t mapping.
389 * @param path (r) path to filesystem object
390 * @param sb (r) struct stat of path
391 * @param result (rw) resulting Darwin allow ACE
393 * @returns 0 or -1 on error
395 static int posix_acl_rights(const char *path,
396 const struct stat *sb,
401 int entry_id = ACL_FIRST_ENTRY;
402 uint32_t rights = 0, maskrights = 0;
409 EC_NULL_LOG(acl = acl_get_file(path, ACL_TYPE_ACCESS));
411 /* itereate through all ACEs to get the mask */
412 while (!havemask && acl_get_entry(acl, entry_id, &e) == 1) {
413 entry_id = ACL_NEXT_ENTRY;
414 EC_ZERO_LOG(acl_get_tag_type(e, &tag));
417 maskrights = posix_permset_to_darwin_rights(e, S_ISDIR(sb->st_mode));
418 LOG(log_maxdebug, logtype_afpd, "maskrights: 0x%08x", maskrights);
426 /* itereate through all ACEs */
427 entry_id = ACL_FIRST_ENTRY;
428 while (acl_get_entry(acl, entry_id, &e) == 1) {
429 entry_id = ACL_NEXT_ENTRY;
430 EC_ZERO_LOG(acl_get_tag_type(e, &tag));
433 EC_NULL_LOG(uid = (uid_t *)acl_get_qualifier(e));
435 LOG(log_maxdebug, logtype_afpd, "ACL_USER: %u", *uid);
436 rights |= posix_permset_to_darwin_rights(e, S_ISDIR(sb->st_mode));
442 if (sb->st_uid == uuid) {
443 LOG(log_maxdebug, logtype_afpd, "ACL_USER_OBJ: %u", sb->st_uid);
444 rights |= posix_permset_to_darwin_rights(e, S_ISDIR(sb->st_mode));
448 EC_NULL_LOG(gid = (gid_t *)acl_get_qualifier(e));
450 LOG(log_maxdebug, logtype_afpd, "ACL_GROUP: %u", *gid);
451 rights |= (posix_permset_to_darwin_rights(e, S_ISDIR(sb->st_mode)) & maskrights);
457 if (!(sb->st_uid == uuid) && gmem(sb->st_gid)) {
458 LOG(log_maxdebug, logtype_afpd, "ACL_GROUP_OBJ: %u", sb->st_gid);
459 rights |= posix_permset_to_darwin_rights(e, S_ISDIR(sb->st_mode));
463 if (!(sb->st_uid == uuid) && !gmem(sb->st_gid)) {
464 LOG(log_maxdebug, logtype_afpd, "ACL_OTHER");
465 rights |= posix_permset_to_darwin_rights(e, S_ISDIR(sb->st_mode));
476 if (acl) acl_free(acl);
477 if (uid) acl_free(uid);
478 if (gid) acl_free(gid);
483 * Add entries of one acl to another acl
485 * @param aclp (rw) destination acl where new aces will be added
486 * @param acl (r) source acl where aces will be copied from
488 * @returns 0 on success, -1 on error
490 static int acl_add_acl(acl_t *aclp, const acl_t acl)
496 for (id = ACL_FIRST_ENTRY; acl_get_entry(acl, id, &se) == 1; id = ACL_NEXT_ENTRY) {
497 EC_ZERO_LOG_ERR(acl_create_entry(aclp, &de), AFPERR_MISC);
498 EC_ZERO_LOG_ERR(acl_copy_entry(de, se), AFPERR_MISC);
506 * Map Darwin ACE rights to POSIX 1e perm
508 * We can only map few rights:
509 * DARWIN_ACE_READ_DATA -> ACL_READ
510 * DARWIN_ACE_WRITE_DATA -> ACL_WRITE
511 * DARWIN_ACE_DELETE_CHILD & (is_dir == 1) -> ACL_WRITE
512 * DARWIN_ACE_EXECUTE -> ACL_EXECUTE
514 * @param entry (rw) result of the mapping
515 * @param is_dir (r) 1 for dirs, 0 for files
517 * @returns mapping result as acl_perm_t, -1 on error
519 static acl_perm_t map_darwin_right_to_posix_permset(uint32_t darwin_ace_rights, int is_dir)
523 if (darwin_ace_rights & DARWIN_ACE_READ_DATA)
526 if (darwin_ace_rights & (DARWIN_ACE_WRITE_DATA | (DARWIN_ACE_DELETE_CHILD & is_dir)))
529 if (darwin_ace_rights & DARWIN_ACE_EXECUTE)
536 * Add a ACL_USER or ACL_GROUP permission to an ACL, extending existing ACEs
538 * Add a permission of "type" for user or group "id" to an ACL. Scan the ACL
539 * for existing permissions for this type/id, if there is one add the perm,
540 * otherwise create a new ACL entry.
541 * perm can be or'ed ACL_READ, ACL_WRITE and ACL_EXECUTE.
543 * @param aclp (rw) pointer to ACL
544 * @param type (r) acl_tag_t of ACL_USER or ACL_GROUP
545 * @param id (r) uid_t uid for ACL_USER, or gid casted to uid_t for ACL_GROUP
546 * @param perm (r) acl_perm_t permissions to add
548 * @returns 0 on success, -1 on failure
550 static int posix_acl_add_perm(acl_t *aclp, acl_tag_t type, uid_t id, acl_perm_t perm)
556 int entry_id = ACL_FIRST_ENTRY;
557 acl_permset_t permset;
560 for ( ; (! found) && acl_get_entry(*aclp, entry_id, &e) == 1; entry_id = ACL_NEXT_ENTRY) {
561 EC_ZERO_LOG(acl_get_tag_type(e, &tag));
562 if (tag != ACL_USER && tag != ACL_GROUP)
564 EC_NULL_LOG(eid = (uid_t *)acl_get_qualifier(e));
565 if ((*eid == id) && (type == tag)) {
566 /* found an ACE for this type/id */
568 EC_ZERO_LOG(acl_get_permset(e, &permset));
569 EC_ZERO_LOG(acl_add_perm(permset, perm));
577 /* there was no existing ACE for this type/id */
578 EC_ZERO_LOG(acl_create_entry(aclp, &e));
579 EC_ZERO_LOG(acl_set_tag_type(e, type));
580 EC_ZERO_LOG(acl_set_qualifier(e, &id));
581 EC_ZERO_LOG(acl_get_permset(e, &permset));
582 EC_ZERO_LOG(acl_clear_perms(permset));
583 EC_ZERO_LOG(acl_add_perm(permset, perm));
584 EC_ZERO_LOG(acl_set_permset(e, permset));
588 if (eid) acl_free(eid);
594 * Map Darwin ACL to POSIX ACL.
596 * aclp must point to a acl_init'ed acl_t or an acl_t that can eg contain default ACEs.
597 * Mapping pecularities:
598 * - we create a default ace (which inherits to files and dirs) if either
599 DARWIN_ACE_FLAGS_FILE_INHERIT or DARWIN_ACE_FLAGS_DIRECTORY_INHERIT is requested
600 * - we throw away DARWIN_ACE_FLAGS_LIMIT_INHERIT (can't be mapped), thus the ACL will
603 * @param darwin_aces (r) pointer to darwin_aces buffer
604 * @param def_aclp (rw) directories: pointer to an initialized acl_t with the default acl
605 * files: *def_aclp will be NULL
606 * @param acc_aclp (rw) pointer to an initialized acl_t with the access acl
607 * @param ace_count (r) number of ACEs in darwin_aces buffer
609 * @returns 0 on success storing the result in aclp, -1 on error.
611 static int map_aces_darwin_to_posix(const darwin_ace_t *darwin_aces,
622 uint32_t darwin_ace_flags, darwin_ace_rights;
626 for ( ; ace_count != 0; ace_count--, darwin_aces++) {
627 /* type: allow/deny, posix only has allow */
628 darwin_ace_flags = ntohl(darwin_aces->darwin_ace_flags);
629 if ( ! (darwin_ace_flags & DARWIN_ACE_FLAGS_PERMIT))
632 darwin_ace_rights = ntohl(darwin_aces->darwin_ace_rights);
633 perm = map_darwin_right_to_posix_permset(darwin_ace_rights, (*def_aclp != NULL));
635 continue; /* dont add empty perm */
637 LOG(log_debug, logtype_afpd, "map_ace: no: %u, flags: %08x, darwin: %08x, posix: %02x",
638 ace_count, darwin_ace_flags, darwin_ace_rights, perm);
641 EC_ZERO_LOG(getnamefromuuid(darwin_aces->darwin_ace_uuid, &name, &uuidtype));
644 EC_NULL_LOG(pwd = getpwnam(name));
647 LOG(log_debug, logtype_afpd, "map_ace: name: %s, uid: %u", name, id);
650 EC_NULL_LOG(grp = getgrnam(name));
652 id = (uid_t)(grp->gr_gid);
653 LOG(log_debug, logtype_afpd, "map_ace: name: %s, gid: %u", name, id);
661 if (darwin_ace_flags & DARWIN_ACE_INHERIT_CONTROL_FLAGS) {
662 if (*def_aclp == NULL) {
663 /* ace request inheritane but we haven't got a default acl pointer */
664 LOG(log_warning, logtype_afpd, "map_acl: unexpected ACE, flags: 0x%04x",
668 /* add it as default ace */
669 EC_ZERO_LOG(posix_acl_add_perm(def_aclp, tag, id, perm));
672 if (! (darwin_ace_flags & DARWIN_ACE_FLAGS_ONLY_INHERIT))
673 /* if it not a "inherit only" ace, it must be added as access aces too */
674 EC_ZERO_LOG(posix_acl_add_perm(acc_aclp, tag, id, perm));
676 EC_ZERO_LOG(posix_acl_add_perm(acc_aclp, tag, id, perm));
688 * Map ACEs from POSIX to Darwin.
689 * type is either POSIX_DEFAULT_2_DARWIN or POSIX_ACCESS_2_DARWIN, cf. acl_get_file.
690 * Return number of mapped ACES, -1 on error.
692 static int map_acl_posix_to_darwin(int type, const acl_t acl, darwin_ace_t *darwin_aces)
696 int entry_id = ACL_FIRST_ENTRY;
701 struct passwd *pwd = NULL;
702 struct group *grp = NULL;
704 uint32_t rights, maskrights = 0;
705 darwin_ace_t *saved_darwin_aces = darwin_aces;
707 LOG(log_maxdebug, logtype_afpd, "map_aces_posix_to_darwin(%s)",
708 (type & MAP_MASK) == POSIX_DEFAULT_2_DARWIN ?
709 "POSIX_DEFAULT_2_DARWIN" : "POSIX_ACCESS_2_DARWIN");
711 /* itereate through all ACEs */
712 while (acl_get_entry(acl, entry_id, &e) == 1) {
713 entry_id = ACL_NEXT_ENTRY;
716 EC_ZERO_LOG(acl_get_tag_type(e, &tag));
718 /* we return user and group ACE */
721 EC_NULL_LOG(uid = (uid_t *)acl_get_qualifier(e));
722 EC_NULL_LOG(pwd = getpwuid(*uid));
723 LOG(log_debug, logtype_afpd, "map_aces_posix_to_darwin: uid: %d -> name: %s",
725 EC_ZERO_LOG(getuuidfromname(pwd->pw_name, UUID_USER, darwin_aces->darwin_ace_uuid));
731 EC_NULL_LOG(gid = (gid_t *)acl_get_qualifier(e));
732 EC_NULL_LOG(grp = getgrgid(*gid));
733 LOG(log_debug, logtype_afpd, "map_aces_posix_to_darwin: gid: %d -> name: %s",
735 EC_ZERO_LOG(getuuidfromname(grp->gr_name, UUID_GROUP, darwin_aces->darwin_ace_uuid));
741 maskrights = posix_permset_to_darwin_rights(e, type & IS_DIR);
749 flags = DARWIN_ACE_FLAGS_PERMIT;
750 if ((type & MAP_MASK) == POSIX_DEFAULT_2_DARWIN)
751 flags |= DARWIN_ACE_FLAGS_FILE_INHERIT
752 | DARWIN_ACE_FLAGS_DIRECTORY_INHERIT
753 | DARWIN_ACE_FLAGS_ONLY_INHERIT;
754 darwin_aces->darwin_ace_flags = htonl(flags);
757 rights = posix_permset_to_darwin_rights(e, type & IS_DIR);
758 darwin_aces->darwin_ace_rights = htonl(rights);
764 /* Loop through the mapped ACE buffer once again, applying the mask */
765 for (int i = mapped_aces; i > 0; i--) {
766 saved_darwin_aces->darwin_ace_rights &= htonl(maskrights);
770 EC_STATUS(mapped_aces);
773 if (uid) acl_free(uid);
774 if (gid) acl_free(gid);
780 * Multiplex ACL mapping (SOLARIS_2_DARWIN, DARWIN_2_SOLARIS, POSIX_2_DARWIN, DARWIN_2_POSIX).
781 * Reads from 'aces' buffer, writes to 'rbuf' buffer.
782 * Caller must provide buffer.
783 * Darwin ACEs are read and written in network byte order.
784 * Needs to know how many ACEs are in the ACL (ace_count) for Solaris ACLs.
785 * Ignores trivial ACEs.
786 * Return no of mapped ACEs or -1 on error.
788 static int map_acl(int type, void *acl, darwin_ace_t *buf, int ace_count)
792 LOG(log_debug9, logtype_afpd, "map_acl: BEGIN");
794 switch (type & MAP_MASK) {
796 #ifdef HAVE_SOLARIS_ACLS
797 case SOLARIS_2_DARWIN:
798 mapped_aces = map_aces_solaris_to_darwin( acl, buf, ace_count);
801 case DARWIN_2_SOLARIS:
802 mapped_aces = map_aces_darwin_to_solaris( buf, acl, ace_count);
804 #endif /* HAVE_SOLARIS_ACLS */
806 #ifdef HAVE_POSIX_ACLS
807 case POSIX_DEFAULT_2_DARWIN:
808 mapped_aces = map_acl_posix_to_darwin(type, (const acl_t)acl, buf);
811 case POSIX_ACCESS_2_DARWIN:
812 mapped_aces = map_acl_posix_to_darwin(type, (const acl_t)acl, buf);
815 case DARWIN_2_POSIX_DEFAULT:
818 case DARWIN_2_POSIX_ACCESS:
820 #endif /* HAVE_POSIX_ACLS */
827 LOG(log_debug9, logtype_afpd, "map_acl: END");
831 /* Get ACL from object omitting trivial ACEs. Map to Darwin ACL style and
832 store Darwin ACL at rbuf. Add length of ACL written to rbuf to *rbuflen.
833 Returns 0 on success, -1 on error. */
834 static int get_and_map_acl(char *name, char *rbuf, size_t *rbuflen)
839 uint32_t *darwin_ace_count = (uint32_t *)rbuf;
840 #ifdef HAVE_SOLARIS_ACLS
844 #ifdef HAVE_POSIX_ACLS
847 LOG(log_debug9, logtype_afpd, "get_and_map_acl: BEGIN");
849 /* Skip length and flags */
854 #ifdef HAVE_SOLARIS_ACLS
855 EC_NEG1(ace_count = get_nfsv4_acl(name, &aces));
856 EC_NEG1(mapped_aces = map_acl(SOLARIS_2_DARWIN, aces, (darwin_ace_t *)rbuf, ace_count));
857 #endif /* HAVE_SOLARIS_ACLS */
859 #ifdef HAVE_POSIX_ACLS
860 acl_t defacl = NULL , accacl = NULL;
862 /* stat to check if its a dir */
863 EC_ZERO_LOG(lstat(name, &st));
865 /* if its a dir, check for default acl too */
867 if (S_ISDIR(st.st_mode)) {
869 EC_NULL_LOG(defacl = acl_get_file(name, ACL_TYPE_DEFAULT));
870 EC_NEG1(mapped_aces = map_acl(POSIX_DEFAULT_2_DARWIN | dirflag,
872 (darwin_ace_t *)rbuf,
876 EC_NULL_LOG(accacl = acl_get_file(name, ACL_TYPE_ACCESS));
879 EC_NEG1(tmp = map_acl(POSIX_ACCESS_2_DARWIN | dirflag,
881 (darwin_ace_t *)(rbuf + mapped_aces * sizeof(darwin_ace_t)),
884 #endif /* HAVE_POSIX_ACLS */
886 LOG(log_debug, logtype_afpd, "get_and_map_acl: mapped %d ACEs", mapped_aces);
888 *darwin_ace_count = htonl(mapped_aces);
889 *rbuflen += sizeof(darwin_acl_header_t) + (mapped_aces * sizeof(darwin_ace_t));
894 #ifdef HAVE_SOLARIS_ACLS
895 if (aces) free(aces);
897 #ifdef HAVE_POSIX_ACLS
898 if (defacl) acl_free(defacl);
899 if (accacl) acl_free(accacl);
900 #endif /* HAVE_POSIX_ACLS */
902 LOG(log_debug9, logtype_afpd, "get_and_map_acl: END");
907 /* Removes all non-trivial ACLs from object. Returns full AFPERR code. */
908 static int remove_acl(const struct vol *vol,const char *path, int dir)
912 #if (defined HAVE_SOLARIS_ACLS || defined HAVE_POSIX_ACLS)
913 /* Ressource etc. first */
914 if ((ret = vol->vfs->vfs_remove_acl(vol, path, dir)) != AFP_OK)
916 /* now the data fork or dir */
917 ret = remove_acl_vfs(path);
924 - the client sends a complete list of ACEs, not only new ones. So we dont need to do
925 any combination business (one exception being 'kFileSec_Inherit': see next)
926 - client might request that we add inherited ACEs via 'kFileSec_Inherit'.
927 We will store inherited ACEs first, which is Darwins canonical order.
928 - returns AFPerror code
930 #ifdef HAVE_SOLARIS_ACLS
931 static int set_acl(const struct vol *vol,
938 int i, nfsv4_ace_count;
939 int tocopy_aces_count = 0, new_aces_count = 0, trivial_ace_count = 0;
940 ace_t *old_aces, *new_aces = NULL;
943 LOG(log_debug9, logtype_afpd, "set_acl: BEGIN");
946 /* inherited + trivial ACEs */
947 flags = ACE_INHERITED_ACE | ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
949 /* only trivial ACEs */
950 flags = ACE_OWNER | ACE_GROUP | ACE_EVERYONE;
952 /* Get existing ACL and count ACEs which have to be copied */
953 if ((nfsv4_ace_count = get_nfsv4_acl(name, &old_aces)) == -1)
955 for ( i=0; i < nfsv4_ace_count; i++) {
956 if (old_aces[i].a_flags & flags)
960 /* Now malloc buffer exactly sized to fit all new ACEs */
961 if ((new_aces = malloc((ace_count + tocopy_aces_count) * sizeof(ace_t))) == NULL) {
962 LOG(log_error, logtype_afpd, "set_acl: malloc %s", strerror(errno));
963 EC_STATUS(AFPERR_MISC);
967 /* Start building new ACL */
969 /* Copy local inherited ACEs. Therefore we have 'Darwin canonical order' (see chmod there):
970 inherited ACEs first. */
972 for (i=0; i < nfsv4_ace_count; i++) {
973 if (old_aces[i].a_flags & ACE_INHERITED_ACE) {
974 memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
979 LOG(log_debug7, logtype_afpd, "set_acl: copied %d inherited ACEs", new_aces_count);
981 /* Now the ACEs from the client */
982 if ((ret = (map_acl(DARWIN_2_SOLARIS,
983 &new_aces[new_aces_count],
985 ace_count))) == -1) {
986 EC_STATUS(AFPERR_PARAM);
989 new_aces_count += ret;
990 LOG(log_debug7, logtype_afpd, "set_acl: mapped %d ACEs from client", ret);
992 /* Now copy the trivial ACEs */
993 for (i=0; i < nfsv4_ace_count; i++) {
994 if (old_aces[i].a_flags & (ACE_OWNER | ACE_GROUP | ACE_EVERYONE)) {
995 memcpy(&new_aces[new_aces_count], &old_aces[i], sizeof(ace_t));
1000 LOG(log_debug7, logtype_afpd, "set_acl: copied %d trivial ACEs", trivial_ace_count);
1002 /* Ressourcefork first.
1003 Note: for dirs we set the same ACL on the .AppleDouble/.Parent _file_. This
1004 might be strange for ACE_DELETE_CHILD and for inheritance flags. */
1005 if ((ret = (vol->vfs->vfs_acl(vol, name, ACE_SETACL, new_aces_count, new_aces))) != 0) {
1006 LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
1007 if (errno == (EACCES | EPERM))
1008 EC_STATUS(AFPERR_ACCESS);
1009 else if (errno == ENOENT)
1010 EC_STATUS(AFPERR_NOITEM);
1012 EC_STATUS(AFPERR_MISC);
1015 if ((ret = (acl(name, ACE_SETACL, new_aces_count, new_aces))) != 0) {
1016 LOG(log_error, logtype_afpd, "set_acl: error setting acl: %s", strerror(errno));
1017 if (errno == (EACCES | EPERM))
1018 EC_STATUS(AFPERR_ACCESS);
1019 else if (errno == ENOENT)
1020 EC_STATUS(AFPERR_NOITEM);
1022 EC_STATUS(AFPERR_MISC);
1029 if (old_aces) free(old_aces);
1030 if (new_aces) free(new_aces);
1032 LOG(log_debug9, logtype_afpd, "set_acl: END");
1035 #endif /* HAVE_SOLARIS_ACLS */
1037 #ifdef HAVE_POSIX_ACLS
1038 static int set_acl(const struct vol *vol,
1041 darwin_ace_t *daces,
1045 acl_t def_acl = NULL;
1046 acl_t acc_acl = NULL;
1048 LOG(log_maxdebug, logtype_afpd, "set_acl: BEGIN");
1051 EC_ZERO_LOG_ERR(lstat(name, &st), AFPERR_NOOBJ);
1053 /* seed default ACL with access ACL */
1054 if (S_ISDIR(st.st_mode))
1055 EC_NULL_LOG_ERR(def_acl = acl_get_file(name, ACL_TYPE_ACCESS), AFPERR_MISC);
1057 /* for files def_acl will be NULL */
1059 /* create access acl from mode */
1060 #ifdef HAVE_ACL_FROM_MODE
1061 EC_NULL_LOG_ERR(acc_acl = acl_from_mode(st.st_mode), AFPERR_MISC);
1063 #error "Missing acl_from_mode() replacement"
1065 /* adds the clients aces */
1066 EC_ZERO_ERR(map_aces_darwin_to_posix(daces, &def_acl, &acc_acl, ace_count), AFPERR_MISC);
1068 /* calcuate ACL mask */
1069 EC_ZERO_LOG_ERR(acl_calc_mask(&acc_acl), AFPERR_MISC);
1072 EC_ZERO_LOG_ERR(acl_valid(acc_acl), AFPERR_MISC);
1075 EC_ZERO_LOG_ERR(acl_set_file(name, ACL_TYPE_ACCESS, acc_acl), AFPERR_MISC);
1076 EC_ZERO_LOG_ERR(vol->vfs->vfs_acl(vol, name, ACL_TYPE_ACCESS, 0, acc_acl), AFPERR_MISC);
1079 EC_ZERO_LOG_ERR(acl_set_file(name, ACL_TYPE_DEFAULT, def_acl), AFPERR_MISC);
1080 EC_ZERO_LOG_ERR(vol->vfs->vfs_acl(vol, name, ACL_TYPE_DEFAULT, 0, def_acl), AFPERR_MISC);
1087 LOG(log_maxdebug, logtype_afpd, "set_acl: END");
1090 #endif /* HAVE_POSIX_ACLS */
1093 * Checks if a given UUID has requested_rights(type darwin_ace_rights) for path.
1095 * Note: this gets called frequently and is a good place for optimizations !
1097 * @param vol (r) volume
1098 * @param dir (rw) directory
1099 * @param path (r) path to filesystem object
1100 * @param uuid (r) UUID of user
1101 * @param requested_rights (r) requested Darwin ACE
1103 * @returns AFP result code
1105 static int check_acl_access(const struct vol *vol,
1109 uint32_t requested_rights)
1112 uint32_t allowed_rights = 0;
1113 char *username = NULL;
1114 uuidtype_t uuidtype;
1116 bstring parent = NULL;
1118 LOG(log_maxdebug, logtype_afpd, "check_access: Request: 0x%08x", requested_rights);
1120 /* Get uid or gid from UUID */
1121 EC_ZERO_LOG_ERR(getnamefromuuid(uuid, &username, &uuidtype), AFPERR_PARAM);
1122 EC_ZERO_LOG_ERR(lstat(path, &st), AFPERR_PARAM);
1128 LOG(log_warning, logtype_afpd, "check_access: afp_access not supported for groups");
1129 EC_STATUS(AFPERR_MISC);
1132 EC_STATUS(AFPERR_MISC);
1136 if ((strcmp(path, ".") == 0) && (dir->d_rights_cache != 0xffffffff)) {
1137 /* its a dir and the cache value is valid */
1138 allowed_rights = dir->d_rights_cache;
1139 LOG(log_debug, logtype_afpd, "allowed rights from dircache: 0x%08x", allowed_rights);
1141 #ifdef HAVE_SOLARIS_ACLS
1142 EC_ZERO_LOG(solaris_acl_rights(path, &st, &allowed_rights));
1144 #ifdef HAVE_POSIX_ACLS
1145 EC_ZERO_LOG(posix_acl_rights(path, &st, &allowed_rights));
1148 * The DARWIN_ACE_DELETE right might implicitly result from write acces to the parent
1149 * directory. As it seems the 10.6 AFP client is puzzled when this right is not
1150 * allowed where a delete would succeed because the parent dir gives write perms.
1151 * So we check the parent dir for write access and set the right accordingly.
1152 * Currentyl acl2ownermode calls us with dir = NULL, because it doesn't make sense
1153 * there to do this extra check -- afaict.
1155 if (vol && dir && (requested_rights & DARWIN_ACE_DELETE)) {
1157 uint32_t parent_rights = 0;
1159 if (dir->d_did == DIRDID_ROOT_PARENT) {
1160 /* use volume path */
1161 EC_NULL_LOG_ERR(parent = bfromcstr(vol->v_path), AFPERR_MISC);
1163 /* build path for parent */
1164 EC_NULL_LOG_ERR(parent = bstrcpy(dir->d_fullpath), AFPERR_MISC);
1165 EC_ZERO_LOG_ERR(bconchar(parent, '/'), AFPERR_MISC);
1166 EC_ZERO_LOG_ERR(bcatcstr(parent, path), AFPERR_MISC);
1167 EC_NEG1_LOG_ERR(i = bstrrchr(parent, '/'), AFPERR_MISC);
1168 EC_ZERO_LOG_ERR(binsertch(parent, i, 1, 0), AFPERR_MISC);
1171 LOG(log_debug, logtype_afpd,"parent: %s", cfrombstr(parent));
1172 EC_ZERO_LOG_ERR(lstat(cfrombstr(parent), &st), AFPERR_MISC);
1174 #ifdef HAVE_SOLARIS_ACLS
1175 EC_ZERO_LOG(solaris_acl_rights(cfrombstr(parent), &st, &parent_rights));
1177 #ifdef HAVE_POSIX_ACLS
1178 EC_ZERO_LOG(posix_acl_rights(path, &st, &allowed_rights));
1180 if (parent_rights & (DARWIN_ACE_WRITE_DATA | DARWIN_ACE_DELETE_CHILD))
1181 allowed_rights |= DARWIN_ACE_DELETE; /* man, that was a lot of work! */
1183 LOG(log_debug, logtype_afpd, "allowed rights: 0x%08x", allowed_rights);
1184 dir->d_rights_cache = allowed_rights;
1187 if ((requested_rights & allowed_rights) != requested_rights) {
1188 LOG(log_debug, logtype_afpd, "some requested right wasn't allowed: 0x%08x / 0x%08x",
1189 requested_rights, allowed_rights);
1190 EC_STATUS(AFPERR_ACCESS);
1192 LOG(log_debug, logtype_afpd, "all requested rights are allowed: 0x%08x",
1198 if (username) free(username);
1199 if (parent) bdestroy(parent);
1204 /********************************************************
1206 ********************************************************/
1208 int afp_access(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
1213 uint32_t did, darwin_ace_rights;
1215 struct path *s_path;
1221 memcpy(&vid, ibuf, sizeof( vid ));
1222 ibuf += sizeof(vid);
1223 if (NULL == ( vol = getvolbyvid( vid ))) {
1224 LOG(log_error, logtype_afpd, "afp_access: error getting volid:%d", vid);
1225 return AFPERR_NOOBJ;
1228 memcpy(&did, ibuf, sizeof( did ));
1229 ibuf += sizeof( did );
1230 if (NULL == ( dir = dirlookup( vol, did ))) {
1231 LOG(log_error, logtype_afpd, "afp_access: error getting did:%d", did);
1238 /* Store UUID address */
1239 uuid = (uuidp_t)ibuf;
1240 ibuf += UUID_BINSIZE;
1242 /* Store ACE rights */
1243 memcpy(&darwin_ace_rights, ibuf, 4);
1244 darwin_ace_rights = ntohl(darwin_ace_rights);
1247 /* get full path and handle file/dir subtleties in netatalk code*/
1248 if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
1249 LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
1250 return AFPERR_NOOBJ;
1252 if (!s_path->st_valid)
1253 of_statdir(vol, s_path);
1254 if ( s_path->st_errno != 0 ) {
1255 LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
1256 return AFPERR_NOOBJ;
1259 ret = check_acl_access(vol, dir, s_path->u_name, uuid, darwin_ace_rights);
1264 int afp_getacl(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
1270 uint16_t vid, bitmap;
1271 struct path *s_path;
1275 LOG(log_debug9, logtype_afpd, "afp_getacl: BEGIN");
1279 memcpy(&vid, ibuf, sizeof( vid ));
1280 ibuf += sizeof(vid);
1281 if (NULL == ( vol = getvolbyvid( vid ))) {
1282 LOG(log_error, logtype_afpd, "afp_getacl: error getting volid:%d", vid);
1283 return AFPERR_NOOBJ;
1286 memcpy(&did, ibuf, sizeof( did ));
1287 ibuf += sizeof( did );
1288 if (NULL == ( dir = dirlookup( vol, did ))) {
1289 LOG(log_error, logtype_afpd, "afp_getacl: error getting did:%d", did);
1293 memcpy(&bitmap, ibuf, sizeof( bitmap ));
1294 memcpy(rbuf, ibuf, sizeof( bitmap ));
1295 bitmap = ntohs( bitmap );
1296 ibuf += sizeof( bitmap );
1297 rbuf += sizeof( bitmap );
1298 *rbuflen += sizeof( bitmap );
1300 /* skip maxreplysize */
1303 /* get full path and handle file/dir subtleties in netatalk code*/
1304 if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
1305 LOG(log_error, logtype_afpd, "afp_getacl: cname got an error!");
1306 return AFPERR_NOOBJ;
1308 if (!s_path->st_valid)
1309 of_statdir(vol, s_path);
1310 if ( s_path->st_errno != 0 ) {
1311 LOG(log_error, logtype_afpd, "afp_getacl: cant stat");
1312 return AFPERR_NOOBJ;
1315 /* Shall we return owner UUID ? */
1316 if (bitmap & kFileSec_UUID) {
1317 LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner user UUID");
1318 if (NULL == (pw = getpwuid(s_path->st.st_uid))) {
1319 LOG(log_debug, logtype_afpd, "afp_getacl: local uid: %u", s_path->st.st_uid);
1320 localuuid_from_id(rbuf, UUID_USER, s_path->st.st_uid);
1322 LOG(log_debug, logtype_afpd, "afp_getacl: got uid: %d, name: %s", s_path->st.st_uid, pw->pw_name);
1323 if ((ret = getuuidfromname(pw->pw_name, UUID_USER, rbuf)) != 0)
1326 rbuf += UUID_BINSIZE;
1327 *rbuflen += UUID_BINSIZE;
1330 /* Shall we return group UUID ? */
1331 if (bitmap & kFileSec_GRPUUID) {
1332 LOG(log_debug, logtype_afpd, "afp_getacl: client requested files owner group UUID");
1333 if (NULL == (gr = getgrgid(s_path->st.st_gid))) {
1334 LOG(log_debug, logtype_afpd, "afp_getacl: local gid: %u", s_path->st.st_gid);
1335 localuuid_from_id(rbuf, UUID_GROUP, s_path->st.st_gid);
1337 LOG(log_debug, logtype_afpd, "afp_getacl: got gid: %d, name: %s", s_path->st.st_gid, gr->gr_name);
1338 if ((ret = getuuidfromname(gr->gr_name, UUID_GROUP, rbuf)) != 0)
1341 rbuf += UUID_BINSIZE;
1342 *rbuflen += UUID_BINSIZE;
1345 /* Shall we return ACL ? */
1346 if (bitmap & kFileSec_ACL) {
1347 LOG(log_debug, logtype_afpd, "afp_getacl: client requested files ACL");
1348 if (get_and_map_acl(s_path->u_name, rbuf, rbuflen) != 0) {
1349 LOG(log_error, logtype_afpd, "afp_getacl(\"%s/%s\"): mapping error",
1350 getcwdpath(), s_path->u_name);
1355 LOG(log_debug9, logtype_afpd, "afp_getacl: END");
1359 int afp_setacl(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
1365 uint16_t vid, bitmap;
1366 struct path *s_path;
1368 LOG(log_debug9, logtype_afpd, "afp_setacl: BEGIN");
1372 memcpy(&vid, ibuf, sizeof( vid ));
1373 ibuf += sizeof(vid);
1374 if (NULL == ( vol = getvolbyvid( vid ))) {
1375 LOG(log_error, logtype_afpd, "afp_setacl: error getting volid:%d", vid);
1376 return AFPERR_NOOBJ;
1379 memcpy(&did, ibuf, sizeof( did ));
1380 ibuf += sizeof( did );
1381 if (NULL == ( dir = dirlookup( vol, did ))) {
1382 LOG(log_error, logtype_afpd, "afp_setacl: error getting did:%d", did);
1386 memcpy(&bitmap, ibuf, sizeof( bitmap ));
1387 bitmap = ntohs( bitmap );
1388 ibuf += sizeof( bitmap );
1390 /* get full path and handle file/dir subtleties in netatalk code*/
1391 if (NULL == ( s_path = cname( vol, dir, &ibuf ))) {
1392 LOG(log_error, logtype_afpd, "afp_setacl: cname got an error!");
1393 return AFPERR_NOOBJ;
1395 if (!s_path->st_valid)
1396 of_statdir(vol, s_path);
1397 if ( s_path->st_errno != 0 ) {
1398 LOG(log_error, logtype_afpd, "afp_setacl: cant stat");
1399 return AFPERR_NOOBJ;
1401 LOG(log_debug, logtype_afpd, "afp_setacl: unixname: %s", s_path->u_name);
1404 if ((unsigned long)ibuf & 1)
1407 /* Start processing request */
1409 /* Change owner: dont even try */
1410 if (bitmap & kFileSec_UUID) {
1411 LOG(log_note, logtype_afpd, "afp_setacl: change owner request, discarded");
1412 ret = AFPERR_ACCESS;
1413 ibuf += UUID_BINSIZE;
1416 /* Change group: certain changes might be allowed, so try it. FIXME: not implemented yet. */
1417 if (bitmap & kFileSec_UUID) {
1418 LOG(log_note, logtype_afpd, "afp_setacl: change group request, not supported");
1420 ibuf += UUID_BINSIZE;
1424 if (bitmap & kFileSec_REMOVEACL) {
1425 LOG(log_debug, logtype_afpd, "afp_setacl: Remove ACL request.");
1426 if ((ret = remove_acl(vol, s_path->u_name, S_ISDIR(s_path->st.st_mode))) != AFP_OK)
1427 LOG(log_error, logtype_afpd, "afp_setacl: error from remove_acl");
1431 if (bitmap & kFileSec_ACL) {
1432 LOG(log_debug, logtype_afpd, "afp_setacl: Change ACL request.");
1433 /* Get no of ACEs the client put on the wire */
1435 memcpy(&ace_count, ibuf, sizeof(uint32_t));
1436 ace_count = htonl(ace_count);
1437 ibuf += 8; /* skip ACL flags (see acls.h) */
1441 (bitmap & kFileSec_Inherit),
1442 (darwin_ace_t *)ibuf,
1447 LOG(log_warning, logtype_afpd, "afp_setacl(\"%s/%s\"): error",
1448 getcwdpath(), s_path->u_name);
1453 LOG(log_debug9, logtype_afpd, "afp_setacl: END");
1457 /********************************************************************
1458 * ACL funcs interfacing with other parts
1459 ********************************************************************/
1462 * map ACL to user maccess
1464 * This is the magic function that makes ACLs usable by calculating
1465 * the access granted by ACEs to the logged in user.
1467 int acltoownermode(char *path, struct stat *st, struct maccess *ma)
1470 uint32_t rights = 0;
1472 if ( ! (AFPobj->options.flags & OPTION_ACL2MACCESS)
1473 || (current_vol == NULL)
1474 || ! (current_vol->v_flags & AFPVOL_ACLS))
1477 LOG(log_maxdebug, logtype_afpd, "acltoownermode(\"%s/%s\", 0x%02x)",
1478 getcwdpath(), path, ma->ma_user);
1480 #ifdef HAVE_SOLARIS_ACLS
1481 EC_ZERO_LOG(solaris_acl_rights(path, st, &rights));
1483 #ifdef HAVE_POSIX_ACLS
1484 EC_ZERO_LOG(posix_acl_rights(path, st, &rights));
1487 LOG(log_maxdebug, logtype_afpd, "rights: 0x%08x", rights);
1489 if (rights & DARWIN_ACE_READ_DATA)
1490 ma->ma_user |= AR_UREAD;
1491 if (rights & DARWIN_ACE_WRITE_DATA)
1492 ma->ma_user |= AR_UWRITE;
1493 if (rights & (DARWIN_ACE_EXECUTE | DARWIN_ACE_SEARCH))
1494 ma->ma_user |= AR_USEARCH;
1496 LOG(log_maxdebug, logtype_afpd, "resulting user maccess: 0x%02x", ma->ma_user);
1503 * Check whether a volume supports ACLs
1505 * @param vol (r) volume
1507 * @returns 0 if not, 1 if yes
1509 int check_vol_acl_support(const struct vol *vol)
1513 #ifdef HAVE_SOLARIS_ACLS
1515 if (get_nfsv4_acl(vol->v_path, &aces) == -1)
1518 #ifdef HAVE_POSIX_ACLS
1520 if ((acl = acl_get_file(vol->v_path, ACL_TYPE_ACCESS)) == NULL)
1524 #ifdef HAVE_SOLARIS_ACLS
1525 if (aces) free(aces);
1527 #ifdef HAVE_POSIX_ACLS
1528 if (acl) acl_free(acl);
1529 #endif /* HAVE_POSIX_ACLS */
1531 LOG(log_debug, logtype_afpd, "Volume \"%s\" ACL support: %s",
1532 vol->v_path, ret ? "yes" : "no");