2 * Convert AFS acls to NT acls and vice versa.
4 * Copyright (C) Volker Lendecke, 2003
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "system/filesys.h"
22 #include "smbd/smbd.h"
23 #include "../librpc/gen_ndr/lsa.h"
24 #include "../libcli/security/security.h"
25 #include "../libcli/security/dom_sid.h"
27 #include "lib/afs/afs_settoken.h"
28 #include "lib/util/string_wrappers.h"
31 #define DBGC_CLASS DBGC_VFS
34 #include <afs/afs_args.h>
35 #include <afs/venus.h>
36 #include <afs/prs_fs.h>
40 extern const struct dom_sid global_sid_World;
41 extern const struct dom_sid global_sid_Builtin_Administrators;
42 extern const struct dom_sid global_sid_Builtin_Backup_Operators;
43 extern const struct dom_sid global_sid_Authenticated_Users;
44 extern const struct dom_sid global_sid_NULL;
46 static char space_replacement = '%';
48 /* Do we expect SIDs as pts names? */
55 enum lsa_SidType type;
64 struct afs_ace *acelist;
69 uint16_t in_size, out_size;
73 static bool init_afs_acl(struct afs_acl *acl)
76 acl->ctx = talloc_init("afs_acl");
77 if (acl->ctx == NULL) {
78 DEBUG(10, ("Could not init afs_acl\n"));
84 static void free_afs_acl(struct afs_acl *acl)
87 talloc_destroy(acl->ctx);
93 static struct afs_ace *clone_afs_ace(TALLOC_CTX *mem_ctx, struct afs_ace *ace)
95 struct afs_ace *result = talloc(mem_ctx, struct afs_ace);
103 result->name = talloc_strdup(mem_ctx, ace->name);
105 if (result->name == NULL) {
112 static struct afs_ace *new_afs_ace(TALLOC_CTX *mem_ctx,
114 const char *name, uint32_t rights)
117 enum lsa_SidType type;
118 struct afs_ace *result;
120 if (strcmp(name, "system:administrators") == 0) {
122 sid_copy(&sid, &global_sid_Builtin_Administrators);
123 type = SID_NAME_ALIAS;
125 } else if (strcmp(name, "system:anyuser") == 0) {
127 sid_copy(&sid, &global_sid_World);
128 type = SID_NAME_ALIAS;
130 } else if (strcmp(name, "system:authuser") == 0) {
132 sid_copy(&sid, &global_sid_Authenticated_Users);
133 type = SID_NAME_WKN_GRP;
135 } else if (strcmp(name, "system:backup") == 0) {
137 sid_copy(&sid, &global_sid_Builtin_Backup_Operators);
138 type = SID_NAME_ALIAS;
141 /* All PTS users/groups are expressed as SIDs */
143 sid_copy(&sid, &global_sid_NULL);
144 type = SID_NAME_UNKNOWN;
146 if (string_to_sid(&sid, name)) {
147 const char *user, *domain;
148 /* We have to find the type, look up the SID */
149 lookup_sid(talloc_tos(), &sid,
150 &domain, &user, &type);
155 const char *domain, *uname;
158 p = strchr_m(name, *lp_winbind_separator());
163 if (!lookup_name(talloc_tos(), name, LOOKUP_NAME_ALL,
164 &domain, &uname, &sid, &type)) {
165 DEBUG(10, ("Could not find AFS user %s\n", name));
167 sid_copy(&sid, &global_sid_NULL);
168 type = SID_NAME_UNKNOWN;
173 result = talloc(mem_ctx, struct afs_ace);
175 if (result == NULL) {
176 DEBUG(0, ("Could not talloc AFS ace\n"));
180 result->name = talloc_strdup(mem_ctx, name);
181 if (result->name == NULL) {
182 DEBUG(0, ("Could not talloc AFS ace name\n"));
189 result->positive = positive;
190 result->rights = rights;
195 static void add_afs_ace(struct afs_acl *acl,
197 const char *name, uint32_t rights)
201 for (ace = acl->acelist; ace != NULL; ace = ace->next) {
202 if ((ace->positive == positive) &&
203 (strequal(ace->name, name))) {
204 ace->rights |= rights;
209 ace = new_afs_ace(acl->ctx, positive, name, rights);
211 ace->next = acl->acelist;
216 DEBUG(10, ("add_afs_ace: Added %s entry for %s with rights %d\n",
217 ace->positive?"positive":"negative",
218 ace->name, ace->rights));
221 /* AFS ACLs in string form are a long string of fields delimited with \n.
223 * First line: Number of positive entries
224 * Second line: Number of negative entries
225 * Third and following lines: The entries themselves
227 * An ACE is a line of two fields, delimited by \t.
230 * Second field: Rights
233 static bool parse_afs_acl(struct afs_acl *acl, const char *acl_str)
241 strlcpy(str, acl_str, MAXSIZE);
243 if (sscanf(p, "%d", &nplus) != 1)
246 DEBUG(10, ("Found %d positive entries\n", nplus));
248 if ((p = strchr(p, '\n')) == NULL)
252 if (sscanf(p, "%d", &nminus) != 1)
255 DEBUG(10, ("Found %d negative entries\n", nminus));
257 if ((p = strchr(p, '\n')) == NULL)
261 for (aces = nplus+nminus; aces > 0; aces--)
271 if ((p = strchr(p, '\t')) == NULL)
276 if (sscanf(p, "%d", &rights) != 1)
279 if ((p = strchr(p, '\n')) == NULL)
283 fstrcpy(name, namep);
285 while ((space = strchr_m(name, space_replacement)) != NULL)
288 add_afs_ace(acl, nplus>0, name, rights);
296 static bool unparse_afs_acl(struct afs_acl *acl, char *acl_str)
298 /* TODO: String length checks!!!! */
303 struct afs_ace *ace = acl->acelist;
307 while (ace != NULL) {
315 fstr_sprintf(line, "%d\n", positives);
316 if (strlcat(acl_str, line, MAXSIZE) >= MAXSIZE) {
320 fstr_sprintf(line, "%d\n", negatives);
321 if (strlcat(acl_str, line, MAXSIZE) >= MAXSIZE) {
327 while (ace != NULL) {
328 fstr_sprintf(line, "%s\t%d\n", ace->name, ace->rights);
329 if (strlcat(acl_str, line, MAXSIZE) >= MAXSIZE) {
337 static uint32_t afs_to_nt_file_rights(uint32_t rights)
341 if (rights & PRSFS_READ)
342 result |= FILE_READ_DATA | FILE_READ_EA |
343 FILE_EXECUTE | FILE_READ_ATTRIBUTES |
344 READ_CONTROL_ACCESS | SYNCHRONIZE_ACCESS;
346 if (rights & PRSFS_WRITE)
347 result |= FILE_WRITE_DATA | FILE_WRITE_ATTRIBUTES |
348 FILE_WRITE_EA | FILE_APPEND_DATA;
350 if (rights & PRSFS_LOCK)
351 result |= WRITE_OWNER_ACCESS;
353 if (rights & PRSFS_DELETE)
354 result |= DELETE_ACCESS;
359 static void afs_to_nt_dir_rights(uint32_t afs_rights, uint32_t *nt_rights,
363 *flag = SEC_ACE_FLAG_OBJECT_INHERIT |
364 SEC_ACE_FLAG_CONTAINER_INHERIT;
366 if (afs_rights & PRSFS_INSERT)
367 *nt_rights |= FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY;
369 if (afs_rights & PRSFS_LOOKUP)
370 *nt_rights |= FILE_READ_DATA | FILE_READ_EA |
371 FILE_EXECUTE | FILE_READ_ATTRIBUTES |
372 READ_CONTROL_ACCESS | SYNCHRONIZE_ACCESS;
374 if (afs_rights & PRSFS_WRITE)
375 *nt_rights |= FILE_WRITE_ATTRIBUTES | FILE_WRITE_DATA |
376 FILE_APPEND_DATA | FILE_WRITE_EA;
378 if ((afs_rights & (PRSFS_INSERT|PRSFS_LOOKUP|PRSFS_DELETE)) ==
379 (PRSFS_INSERT|PRSFS_LOOKUP|PRSFS_DELETE))
380 *nt_rights |= FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA |
381 GENERIC_WRITE_ACCESS;
383 if (afs_rights & PRSFS_DELETE)
384 *nt_rights |= DELETE_ACCESS;
386 if (afs_rights & PRSFS_ADMINISTER)
387 *nt_rights |= FILE_DELETE_CHILD | WRITE_DAC_ACCESS |
390 if ( (afs_rights & PRSFS_LOOKUP) ==
391 (afs_rights & (PRSFS_LOOKUP|PRSFS_READ)) ) {
392 /* Only lookup right */
393 *flag = SEC_ACE_FLAG_CONTAINER_INHERIT;
397 #define AFS_FILE_RIGHTS (PRSFS_READ|PRSFS_WRITE|PRSFS_LOCK)
398 #define AFS_DIR_RIGHTS (PRSFS_INSERT|PRSFS_LOOKUP|PRSFS_DELETE|PRSFS_ADMINISTER)
400 static void split_afs_acl(struct afs_acl *acl,
401 struct afs_acl *dir_acl,
402 struct afs_acl *file_acl)
406 init_afs_acl(dir_acl);
407 init_afs_acl(file_acl);
409 for (ace = acl->acelist; ace != NULL; ace = ace->next) {
410 if (ace->rights & AFS_FILE_RIGHTS) {
411 add_afs_ace(file_acl, ace->positive, ace->name,
412 ace->rights & AFS_FILE_RIGHTS);
415 if (ace->rights & AFS_DIR_RIGHTS) {
416 add_afs_ace(dir_acl, ace->positive, ace->name,
417 ace->rights & AFS_DIR_RIGHTS);
422 static bool same_principal(struct afs_ace *x, struct afs_ace *y)
424 return ( (x->positive == y->positive) &&
425 (dom_sid_compare(&x->sid, &y->sid) == 0) );
428 static void merge_afs_acls(struct afs_acl *dir_acl,
429 struct afs_acl *file_acl,
430 struct afs_acl *target)
434 init_afs_acl(target);
436 for (ace = dir_acl->acelist; ace != NULL; ace = ace->next) {
437 struct afs_ace *file_ace;
440 for (file_ace = file_acl->acelist;
442 file_ace = file_ace->next) {
443 if (!same_principal(ace, file_ace))
446 add_afs_ace(target, ace->positive, ace->name,
447 ace->rights | file_ace->rights);
452 add_afs_ace(target, ace->positive, ace->name,
456 for (ace = file_acl->acelist; ace != NULL; ace = ace->next) {
457 struct afs_ace *dir_ace;
458 bool already_seen = false;
460 for (dir_ace = dir_acl->acelist;
462 dir_ace = dir_ace->next) {
463 if (!same_principal(ace, dir_ace))
469 add_afs_ace(target, ace->positive, ace->name,
474 #define PERMS_READ 0x001200a9
475 #define PERMS_CHANGE 0x001301bf
476 #define PERMS_FULL 0x001f01ff
478 static struct static_dir_ace_mapping {
486 { 0, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT,
487 PERMS_FULL, 127 /* rlidwka */ },
490 { 0, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT,
491 PERMS_CHANGE, 63 /* rlidwk */ },
493 /* Read (including list folder content) */
494 { 0, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT,
495 PERMS_READ, 9 /* rl */ },
497 /* Read without list folder content -- same as "l" */
498 { 0, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT,
499 0x00120089, 8 /* l */ },
501 /* some stupid workaround for preventing fallbacks */
502 { 0, 0x3, 0x0012019F, 9 /* rl */ },
503 { 0, 0x13, PERMS_FULL, 127 /* full */ },
505 /* read, delete and execute access plus synchronize */
506 { 0, 0x3, 0x001300A9, 9 /* should be rdl, set to rl */},
507 /* classical read list */
508 { 0, 0x13, 0x001200A9, 9 /* rl */},
509 /* almost full control, no delete */
510 { 0, 0x13, PERMS_CHANGE, 63 /* rwidlk */},
513 { 0, SEC_ACE_FLAG_CONTAINER_INHERIT,
514 PERMS_READ, 8 /* l */ },
516 /* FULL without inheritance -- in all cases here we also get
517 the corresponding INHERIT_ONLY ACE in the same ACL */
518 { 0, 0, PERMS_FULL, 127 /* rlidwka */ },
520 /* FULL inherit only -- counterpart to previous one */
521 { 0, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT|SEC_ACE_FLAG_INHERIT_ONLY,
522 PERMS_FULL | SEC_GENERIC_WRITE, 127 /* rlidwka */ },
524 /* CHANGE without inheritance -- in all cases here we also get
525 the corresponding INHERIT_ONLY ACE in the same ACL */
526 { 0, 0, PERMS_CHANGE, 63 /* rlidwk */ },
528 /* CHANGE inherit only -- counterpart to previous one */
529 { 0, SEC_ACE_FLAG_OBJECT_INHERIT|SEC_ACE_FLAG_CONTAINER_INHERIT|SEC_ACE_FLAG_INHERIT_ONLY,
530 PERMS_CHANGE | SEC_GENERIC_WRITE, 63 /* rlidwk */ },
532 /* End marker, hopefully there's no afs right 9999 :-) */
536 static uint32_t nt_to_afs_dir_rights(const char *filename, const struct security_ace *ace)
539 uint32_t rights = ace->access_mask;
540 uint8_t flags = ace->flags;
542 struct static_dir_ace_mapping *m;
544 for (m = &ace_mappings[0]; m->afs_rights != 9999; m++) {
545 if ( (ace->type == m->type) &&
546 (ace->flags == m->flags) &&
547 (ace->access_mask == m->mask) )
548 return m->afs_rights;
551 DEBUG(1, ("AFSACL FALLBACK: 0x%X 0x%X 0x%X %s %X\n",
552 ace->type, ace->flags, ace->access_mask, filename, rights));
554 if (rights & (GENERIC_ALL_ACCESS|WRITE_DAC_ACCESS)) {
555 result |= PRSFS_READ | PRSFS_WRITE | PRSFS_INSERT |
556 PRSFS_LOOKUP | PRSFS_DELETE | PRSFS_LOCK |
560 if (rights & (GENERIC_READ_ACCESS|FILE_READ_DATA)) {
561 result |= PRSFS_LOOKUP;
562 if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
563 result |= PRSFS_READ;
567 if (rights & (GENERIC_WRITE_ACCESS|FILE_WRITE_DATA)) {
568 result |= PRSFS_INSERT | PRSFS_DELETE;
569 if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
570 result |= PRSFS_WRITE | PRSFS_LOCK;
577 static uint32_t nt_to_afs_file_rights(const char *filename, const struct security_ace *ace)
580 uint32_t rights = ace->access_mask;
582 if (rights & (GENERIC_READ_ACCESS|FILE_READ_DATA)) {
583 result |= PRSFS_READ;
586 if (rights & (GENERIC_WRITE_ACCESS|FILE_WRITE_DATA)) {
587 result |= PRSFS_WRITE | PRSFS_LOCK;
593 static size_t afs_to_nt_acl_common(struct afs_acl *afs_acl,
594 SMB_STRUCT_STAT *psbuf,
595 uint32_t security_info,
597 struct security_descriptor **ppdesc)
599 struct security_ace *nt_ace_list;
600 struct dom_sid owner_sid, group_sid;
601 struct security_acl *psa = NULL;
605 struct afs_ace *afs_ace;
607 uid_to_sid(&owner_sid, psbuf->st_ex_uid);
608 gid_to_sid(&group_sid, psbuf->st_ex_gid);
610 if (afs_acl->num_aces) {
611 nt_ace_list = talloc_array(mem_ctx, struct security_ace, afs_acl->num_aces);
613 if (nt_ace_list == NULL)
619 afs_ace = afs_acl->acelist;
622 while (afs_ace != NULL) {
624 uint8_t flag = SEC_ACE_FLAG_OBJECT_INHERIT |
625 SEC_ACE_FLAG_CONTAINER_INHERIT;
627 if (afs_ace->type == SID_NAME_UNKNOWN) {
628 DEBUG(10, ("Ignoring unknown name %s\n",
630 afs_ace = afs_ace->next;
634 if (S_ISDIR(psbuf->st_ex_mode))
635 afs_to_nt_dir_rights(afs_ace->rights, &nt_rights,
638 nt_rights = afs_to_nt_file_rights(afs_ace->rights);
640 init_sec_ace(&nt_ace_list[good_aces++], &(afs_ace->sid),
641 SEC_ACE_TYPE_ACCESS_ALLOWED, nt_rights, flag);
642 afs_ace = afs_ace->next;
645 psa = make_sec_acl(mem_ctx, NT4_ACL_REVISION,
646 good_aces, nt_ace_list);
650 *ppdesc = make_sec_desc(mem_ctx, SD_REVISION,
651 SEC_DESC_SELF_RELATIVE,
652 (security_info & SECINFO_OWNER)
654 (security_info & SECINFO_GROUP)
656 NULL, psa, &sd_size);
661 static size_t afs_to_nt_acl(struct afs_acl *afs_acl,
662 struct connection_struct *conn,
663 struct smb_filename *smb_fname,
664 uint32_t security_info,
666 struct security_descriptor **ppdesc)
671 * We can directly use SMB_VFS_STAT here, as if this was a
672 * POSIX call on a symlink, we've already refused it.
673 * For a Windows acl mapped call on a symlink, we want to follow
676 /* Get the stat struct for the owner info. */
677 ret = SMB_VFS_STAT(conn, smb_fname);
682 return afs_to_nt_acl_common(afs_acl, &smb_fname->st, security_info,
686 static size_t afs_fto_nt_acl(struct afs_acl *afs_acl,
687 struct files_struct *fsp,
688 uint32_t security_info,
690 struct security_descriptor **ppdesc)
692 SMB_STRUCT_STAT sbuf;
694 if (fsp_get_pathref_fd(fsp) == -1) {
695 /* Get the stat struct for the owner info. */
696 return afs_to_nt_acl(afs_acl, fsp->conn, fsp->fsp_name,
697 security_info, mem_ctx, ppdesc);
700 if(SMB_VFS_FSTAT(fsp, &sbuf) != 0) {
704 return afs_to_nt_acl_common(afs_acl, &sbuf, security_info,
708 static bool mappable_sid(const struct dom_sid *sid)
710 struct dom_sid domain_sid;
712 if (dom_sid_compare(sid, &global_sid_Builtin_Administrators) == 0)
715 if (dom_sid_compare(sid, &global_sid_World) == 0)
718 if (dom_sid_compare(sid, &global_sid_Authenticated_Users) == 0)
721 if (dom_sid_compare(sid, &global_sid_Builtin_Backup_Operators) == 0)
724 string_to_sid(&domain_sid, "S-1-5-21");
726 if (dom_sid_compare_domain(sid, &domain_sid) == 0)
732 static bool nt_to_afs_acl(const char *filename,
733 uint32_t security_info_sent,
734 const struct security_descriptor *psd,
735 uint32_t (*nt_to_afs_rights)(const char *filename,
736 const struct security_ace *ace),
737 struct afs_acl *afs_acl)
739 const struct security_acl *dacl;
742 /* Currently we *only* look at the dacl */
744 if (((security_info_sent & SECINFO_DACL) == 0) ||
748 if (!init_afs_acl(afs_acl))
753 for (i = 0; i < dacl->num_aces; i++) {
754 const struct security_ace *ace = &(dacl->aces[i]);
755 const char *dom_name, *name;
756 enum lsa_SidType name_type;
759 if (ace->type != SEC_ACE_TYPE_ACCESS_ALLOWED) {
760 /* First cut: Only positive ACEs */
764 if (!mappable_sid(&ace->trustee)) {
765 struct dom_sid_buf buf;
766 DEBUG(10, ("Ignoring unmappable SID %s\n",
767 dom_sid_str_buf(&ace->trustee, &buf)));
771 if (dom_sid_compare(&ace->trustee,
772 &global_sid_Builtin_Administrators) == 0) {
774 name = "system:administrators";
776 } else if (dom_sid_compare(&ace->trustee,
777 &global_sid_World) == 0) {
779 name = "system:anyuser";
781 } else if (dom_sid_compare(&ace->trustee,
782 &global_sid_Authenticated_Users) == 0) {
784 name = "system:authuser";
786 } else if (dom_sid_compare(&ace->trustee,
787 &global_sid_Builtin_Backup_Operators)
790 name = "system:backup";
794 if (!lookup_sid(talloc_tos(), &ace->trustee,
795 &dom_name, &name, &name_type)) {
796 struct dom_sid_buf buf;
797 DEBUG(1, ("AFSACL: Could not lookup SID %s on file %s\n",
798 dom_sid_str_buf(&ace->trustee, &buf),
803 if ( (name_type == SID_NAME_USER) ||
804 (name_type == SID_NAME_DOM_GRP) ||
805 (name_type == SID_NAME_ALIAS) ) {
807 tmp = talloc_asprintf(talloc_tos(), "%s%s%s",
808 dom_name, lp_winbind_separator(),
813 if (!strlower_m(tmp)) {
820 struct dom_sid_buf buf;
821 /* Expect all users/groups in pts as SIDs */
822 name = talloc_strdup(
824 dom_sid_str_buf(&ace->trustee, &buf));
831 while ((p = strchr_m(name, ' ')) != NULL)
832 *p = space_replacement;
834 add_afs_ace(afs_acl, true, name,
835 nt_to_afs_rights(filename, ace));
841 static bool afs_get_afs_acl(const char *filename, struct afs_acl *acl)
849 DEBUG(5, ("afs_get_afs_acl: %s\n", filename));
852 iob.out_size = MAXSIZE;
853 iob.in = iob.out = space;
855 ret = afs_syscall(AFSCALL_PIOCTL, filename, VIOCGETAL,
859 DEBUG(1, ("got error from PIOCTL: %d\n", ret));
863 if (!init_afs_acl(acl))
866 if (!parse_afs_acl(acl, space)) {
867 DEBUG(1, ("Could not parse AFS acl\n"));
875 /* For setting an AFS ACL we have to take care of the ACEs we could
876 * not properly map to SIDs. Merge all of them into the new ACL. */
878 static void merge_unknown_aces(struct afs_acl *src, struct afs_acl *dst)
882 for (ace = src->acelist; ace != NULL; ace = ace->next)
884 struct afs_ace *copy;
886 if (ace->type != SID_NAME_UNKNOWN) {
887 DEBUG(10, ("Not merging known ACE for %s\n",
892 DEBUG(10, ("Merging unknown ACE for %s\n", ace->name));
894 copy = clone_afs_ace(dst->ctx, ace);
897 DEBUG(0, ("Could not clone ACE for %s\n", ace->name));
901 copy->next = dst->acelist;
907 static NTSTATUS afs_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
908 uint32_t security_info_sent,
909 const struct security_descriptor *psd)
911 struct afs_acl old_afs_acl, new_afs_acl;
912 struct afs_acl dir_acl, file_acl;
913 char acl_string[MAXSIZE];
917 const char *fileacls;
919 fileacls = lp_parm_const_string(SNUM(handle->conn), "afsacl", "fileacls",
922 sidpts = lp_parm_bool(SNUM(handle->conn), "afsacl", "sidpts", false);
924 ZERO_STRUCT(old_afs_acl);
925 ZERO_STRUCT(new_afs_acl);
926 ZERO_STRUCT(dir_acl);
927 ZERO_STRUCT(file_acl);
929 name = talloc_strdup(talloc_tos(), fsp->fsp_name->base_name);
931 return NT_STATUS_NO_MEMORY;
934 if (!fsp->fsp_flags.is_directory) {
935 /* We need to get the name of the directory containing the
936 * file, this is where the AFS acls live */
937 char *p = strrchr(name, '/');
941 name = talloc_strdup(talloc_tos(), ".");
943 return NT_STATUS_NO_MEMORY;
948 if (!afs_get_afs_acl(name, &old_afs_acl)) {
949 DEBUG(3, ("Could not get old ACL of %s\n", fsp_str_dbg(fsp)));
953 split_afs_acl(&old_afs_acl, &dir_acl, &file_acl);
955 if (fsp->fsp_flags.is_directory) {
957 if (!strequal(fileacls, "yes")) {
958 /* Throw away file acls, we depend on the
959 * inheritance ACEs that also give us file
961 free_afs_acl(&file_acl);
964 free_afs_acl(&dir_acl);
965 if (!nt_to_afs_acl(fsp->fsp_name->base_name,
966 security_info_sent, psd,
967 nt_to_afs_dir_rights, &dir_acl))
970 if (strequal(fileacls, "no")) {
975 if (strequal(fileacls, "ignore")) {
980 free_afs_acl(&file_acl);
981 if (!nt_to_afs_acl(fsp->fsp_name->base_name,
982 security_info_sent, psd,
983 nt_to_afs_file_rights, &file_acl))
987 merge_afs_acls(&dir_acl, &file_acl, &new_afs_acl);
989 merge_unknown_aces(&old_afs_acl, &new_afs_acl);
991 unparse_afs_acl(&new_afs_acl, acl_string);
994 iob.in_size = 1+strlen(iob.in);
998 DEBUG(10, ("trying to set acl '%s' on file %s\n", iob.in, name));
1000 ret = afs_syscall(AFSCALL_PIOCTL, name, VIOCSETAL, (char *)&iob, 0);
1003 DEBUG(10, ("VIOCSETAL returned %d\n", ret));
1007 free_afs_acl(&dir_acl);
1008 free_afs_acl(&file_acl);
1009 free_afs_acl(&old_afs_acl);
1010 free_afs_acl(&new_afs_acl);
1012 return (ret == 0) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1015 static NTSTATUS afsacl_fget_nt_acl(struct vfs_handle_struct *handle,
1016 struct files_struct *fsp,
1017 uint32_t security_info,
1018 TALLOC_CTX *mem_ctx,
1019 struct security_descriptor **ppdesc)
1024 DEBUG(5, ("afsacl_fget_nt_acl: %s\n", fsp_str_dbg(fsp)));
1026 sidpts = lp_parm_bool(SNUM(fsp->conn), "afsacl", "sidpts", false);
1028 if (!afs_get_afs_acl(fsp->fsp_name->base_name, &acl)) {
1029 return NT_STATUS_ACCESS_DENIED;
1032 sd_size = afs_fto_nt_acl(&acl, fsp, security_info, mem_ctx, ppdesc);
1036 return (sd_size != 0) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1039 static NTSTATUS afsacl_fset_nt_acl(vfs_handle_struct *handle,
1041 uint32_t security_info_sent,
1042 const struct security_descriptor *psd)
1044 return afs_set_nt_acl(handle, fsp, security_info_sent, psd);
1047 static int afsacl_connect(vfs_handle_struct *handle,
1048 const char *service,
1052 int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1058 spc = lp_parm_const_string(SNUM(handle->conn), "afsacl", "space", "%");
1061 space_replacement = spc[0];
1066 /* We don't have a linear form of the AFS ACL yet */
1067 static int afsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle, files_struct *fsp, TALLOC_CTX *mem_ctx, char **blob_description, DATA_BLOB *blob)
1073 static struct vfs_fn_pointers vfs_afsacl_fns = {
1074 .connect_fn = afsacl_connect,
1075 .fget_nt_acl_fn = afsacl_fget_nt_acl,
1076 .fset_nt_acl_fn = afsacl_fset_nt_acl,
1077 .sys_acl_blob_get_fd_fn = afsacl_sys_acl_blob_get_fd
1081 NTSTATUS vfs_afsacl_init(TALLOC_CTX *ctx)
1083 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "afsacl",