2 * Unix SMB/Netbios implementation.
3 * VFS module to get and set HP-UX ACLs
4 * Copyright (C) Michael Adam 2006
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 * This module supports JFS (POSIX) ACLs on VxFS (Veritas * Filesystem).
22 * These are available on HP-UX 11.00 if JFS 3.3 is installed.
23 * On HP-UX 11i (11.11 and above) these ACLs are supported out of
26 * There is another form of ACLs on HFS. These ACLs have a
27 * completely different API and their own set of userland tools.
28 * Since HFS seems to be considered deprecated, HFS acls
29 * are not supported. (They could be supported through a separate
30 * vfs-module if there is demand.)
33 /* =================================================================
36 * The original hpux-acl code in lib/sysacls.c was based upon the
37 * solaris acl code in the same file. Now for the new modularized
38 * acl implementation, I have taken the code from vfs_solarisacls.c
39 * and did similar adaptations as were done before, essentially
40 * reusing the original internal aclsort functions.
41 * The check for the presence of the acl() call has been adopted, and
42 * a check for the presence of the aclsort() call has been added.
44 * Michael Adam <obnox@samba.org>
46 * ================================================================= */
52 * including standard header <sys/aclv.h>
54 * included here as a quick hack for the special HP-UX-situation:
56 * The problem is that, on HP-UX, jfs/posix acls are
57 * defined in <sys/aclv.h>, while the deprecated hfs acls
58 * are defined inside <sys/acl.h>.
61 /* GROUP is defined somewhere else so undef it here... */
64 /* dl.h: needed to check for acl call via shl_findsym */
67 typedef struct acl HPUX_ACE_T;
68 typedef struct acl *HPUX_ACL_T;
69 typedef int HPUX_ACL_TAG_T; /* the type of an ACL entry */
70 typedef ushort HPUX_PERM_T;
72 /* Structure to capture the count for each type of ACE.
73 * (for hpux_internal_aclsort */
74 struct hpux_acl_types {
95 /* for convenience: check if hpux acl entry is a default entry? */
96 #define _IS_DEFAULT(ace) ((ace).a_type & ACL_DEFAULT)
97 #define _IS_OF_TYPE(ace, type) ( \
98 (((type) == SMB_ACL_TYPE_ACCESS) && !_IS_DEFAULT(ace)) \
100 (((type) == SMB_ACL_TYPE_DEFAULT) && _IS_DEFAULT(ace)) \
104 /* prototypes for private functions */
106 static HPUX_ACL_T hpux_acl_init(int count);
107 static BOOL smb_acl_to_hpux_acl(SMB_ACL_T smb_acl,
108 HPUX_ACL_T *solariacl, int *count,
109 SMB_ACL_TYPE_T type);
110 static SMB_ACL_T hpux_acl_to_smb_acl(HPUX_ACL_T hpuxacl, int count,
111 SMB_ACL_TYPE_T type);
112 static HPUX_ACL_TAG_T smb_tag_to_hpux_tag(SMB_ACL_TAG_T smb_tag);
113 static SMB_ACL_TAG_T hpux_tag_to_smb_tag(HPUX_ACL_TAG_T hpux_tag);
114 static BOOL hpux_add_to_acl(HPUX_ACL_T *hpux_acl, int *count,
115 HPUX_ACL_T add_acl, int add_count, SMB_ACL_TYPE_T type);
116 static BOOL hpux_acl_get_file(const char *name, HPUX_ACL_T *hpuxacl,
118 static SMB_ACL_PERM_T hpux_perm_to_smb_perm(const HPUX_PERM_T perm);
119 static HPUX_PERM_T smb_perm_to_hpux_perm(const SMB_ACL_PERM_T perm);
121 static BOOL hpux_acl_check(HPUX_ACL_T hpux_acl, int count);
123 /* aclsort (internal) and helpers: */
124 static BOOL hpux_acl_sort(HPUX_ACL_T acl, int count);
125 static int hpux_internal_aclsort(int acl_count, int calclass, HPUX_ACL_T aclp);
126 static void hpux_count_obj(int acl_count, HPUX_ACL_T aclp,
127 struct hpux_acl_types *acl_type_count);
128 static void hpux_swap_acl_entries(HPUX_ACE_T *aclp0, HPUX_ACE_T *aclp1);
129 static BOOL hpux_prohibited_duplicate_type(int acl_type);
131 static BOOL hpux_acl_call_present(void);
132 static BOOL hpux_aclsort_call_present(void);
135 /* public functions - the api */
137 SMB_ACL_T hpuxacl_sys_acl_get_file(vfs_handle_struct *handle,
141 SMB_ACL_T result = NULL;
145 DEBUG(10, ("hpuxacl_sys_acl_get_file called for file '%s'.\n",
148 if(hpux_acl_call_present() == False) {
149 /* Looks like we don't have the acl() system call on HPUX.
150 * May be the system doesn't have the latest version of JFS.
155 if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) {
156 DEBUG(10, ("invalid SMB_ACL_TYPE given (%d)\n", type));
161 DEBUGADD(10, ("getting %s acl\n",
162 ((type == SMB_ACL_TYPE_ACCESS) ? "access" : "default")));
164 if (!hpux_acl_get_file(path_p, &hpux_acl, &count)) {
167 result = hpux_acl_to_smb_acl(hpux_acl, count, type);
168 if (result == NULL) {
169 DEBUG(10, ("conversion hpux_acl -> smb_acl failed (%s).\n",
174 DEBUG(10, ("hpuxacl_sys_acl_get_file %s.\n",
175 ((result == NULL) ? "failed" : "succeeded" )));
182 * get the access ACL of a file referred to by a fd
184 SMB_ACL_T hpuxacl_sys_acl_get_fd(vfs_handle_struct *handle,
189 * HPUX doesn't have the facl call. Fake it using the path.... JRA.
191 /* For all I see, the info should already be in the fsp
192 * parameter, but get it again to be safe --- necessary? */
193 files_struct *file_struct_p = file_find_fd(fd);
194 if (file_struct_p == NULL) {
199 * We know we're in the same conn context. So we
200 * can use the relative path.
202 DEBUG(10, ("redirecting call of hpuxacl_sys_acl_get_fd to "
203 "hpuxacl_sys_acl_get_file (no facl syscall on HPUX).\n"));
205 return hpuxacl_sys_acl_get_file(handle, file_struct_p->fsp_name,
206 SMB_ACL_TYPE_ACCESS);
210 int hpuxacl_sys_acl_set_file(vfs_handle_struct *handle,
220 DEBUG(10, ("hpuxacl_sys_acl_set_file called for file '%s'\n",
224 if(hpux_acl_call_present() == False) {
225 /* Looks like we don't have the acl() system call on HPUX.
226 * May be the system doesn't have the latest version of JFS.
231 if ((type != SMB_ACL_TYPE_ACCESS) && (type != SMB_ACL_TYPE_DEFAULT)) {
233 DEBUG(10, ("invalid smb acl type given (%d).\n", type));
236 DEBUGADD(10, ("setting %s acl\n",
237 ((type == SMB_ACL_TYPE_ACCESS) ? "access" : "default")));
239 if(!smb_acl_to_hpux_acl(theacl, &hpux_acl, &count, type)) {
240 DEBUG(10, ("conversion smb_acl -> hpux_acl failed (%s).\n",
246 * if the file is a directory, there is extra work to do:
247 * since the hpux acl call stores both the access acl and
248 * the default acl as provided, we have to get the acl part
249 * that has _not_ been specified in "type" from the file first
250 * and concatenate it with the acl provided.
252 if (SMB_VFS_STAT(handle->conn, name, &s) != 0) {
253 DEBUG(10, ("Error in stat call: %s\n", strerror(errno)));
256 if (S_ISDIR(s.st_mode)) {
257 HPUX_ACL_T other_acl;
259 SMB_ACL_TYPE_T other_type;
261 other_type = (type == SMB_ACL_TYPE_ACCESS)
262 ? SMB_ACL_TYPE_DEFAULT
263 : SMB_ACL_TYPE_ACCESS;
264 DEBUGADD(10, ("getting acl from filesystem\n"));
265 if (!hpux_acl_get_file(name, &other_acl, &other_count)) {
266 DEBUG(10, ("error getting acl from directory\n"));
269 DEBUG(10, ("adding %s part of fs acl to given acl\n",
270 ((other_type == SMB_ACL_TYPE_ACCESS)
273 if (!hpux_add_to_acl(&hpux_acl, &count, other_acl,
274 other_count, other_type))
276 DEBUG(10, ("error adding other acl.\n"));
277 SAFE_FREE(other_acl);
280 SAFE_FREE(other_acl);
282 else if (type != SMB_ACL_TYPE_ACCESS) {
287 if (!hpux_acl_sort(hpux_acl, count)) {
288 DEBUG(10, ("resulting acl is not valid!\n"));
291 DEBUG(10, ("resulting acl is valid.\n"));
293 ret = acl(CONST_DISCARD(char *, name), ACL_SET, count, hpux_acl);
295 DEBUG(0, ("ERROR calling acl: %s\n", strerror(errno)));
299 DEBUG(10, ("hpuxacl_sys_acl_set_file %s.\n",
300 ((ret != 0) ? "failed" : "succeeded")));
306 * set the access ACL on the file referred to by a fd
308 int hpuxacl_sys_acl_set_fd(vfs_handle_struct *handle,
310 int fd, SMB_ACL_T theacl)
313 * HPUX doesn't have the facl call. Fake it using the path.... JRA.
315 /* For all I see, the info should already be in the fsp
316 * parameter, but get it again to be safe --- necessary? */
317 files_struct *file_struct_p = file_find_fd(fd);
318 if (file_struct_p == NULL) {
323 * We know we're in the same conn context. So we
324 * can use the relative path.
326 DEBUG(10, ("redirecting call of hpuxacl_sys_acl_set_fd to "
327 "hpuxacl_sys_acl_set_file (no facl syscall on HPUX)\n"));
329 return hpuxacl_sys_acl_set_file(handle, file_struct_p->fsp_name,
330 SMB_ACL_TYPE_ACCESS, theacl);
335 * delete the default ACL of a directory
337 * This is achieved by fetching the access ACL and rewriting it
338 * directly, via the hpux system call: the ACL_SET call on
339 * directories writes both the access and the default ACL as provided.
341 * XXX: posix acl_delete_def_file returns an error if
342 * the file referred to by path is not a directory.
343 * this function does not complain but the actions
344 * have no effect on a file other than a directory.
345 * But sys_acl_delete_default_file is only called in
346 * smbd/posixacls.c after having checked that the file
347 * is a directory, anyways. So implementing the extra
348 * check is considered unnecessary. --- Agreed? XXX
350 int hpuxacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
358 DEBUG(10, ("entering hpuxacl_sys_acl_delete_def_file.\n"));
360 smb_acl = hpuxacl_sys_acl_get_file(handle, path,
361 SMB_ACL_TYPE_ACCESS);
362 if (smb_acl == NULL) {
363 DEBUG(10, ("getting file acl failed!\n"));
366 if (!smb_acl_to_hpux_acl(smb_acl, &hpux_acl, &count,
367 SMB_ACL_TYPE_ACCESS))
369 DEBUG(10, ("conversion smb_acl -> hpux_acl failed.\n"));
372 if (!hpux_acl_sort(hpux_acl, count)) {
373 DEBUG(10, ("resulting acl is not valid!\n"));
376 ret = acl(CONST_DISCARD(char *, path), ACL_SET, count, hpux_acl);
378 DEBUG(10, ("settinge file acl failed!\n"));
382 DEBUG(10, ("hpuxacl_sys_acl_delete_def_file %s.\n",
383 ((ret != 0) ? "failed" : "succeeded" )));
393 static HPUX_ACL_T hpux_acl_init(int count)
395 HPUX_ACL_T hpux_acl =
396 (HPUX_ACL_T)SMB_MALLOC(sizeof(HPUX_ACE_T) * count);
397 if (hpux_acl == NULL) {
404 * Convert the SMB acl to the ACCESS or DEFAULT part of a
405 * hpux ACL, as desired.
407 static BOOL smb_acl_to_hpux_acl(SMB_ACL_T smb_acl,
408 HPUX_ACL_T *hpux_acl, int *count,
413 int check_which, check_rc;
415 DEBUG(10, ("entering smb_acl_to_hpux_acl\n"));
420 for (i = 0; i < smb_acl->count; i++) {
421 const struct smb_acl_entry *smb_entry = &(smb_acl->acl[i]);
422 HPUX_ACE_T hpux_entry;
424 ZERO_STRUCT(hpux_entry);
426 hpux_entry.a_type = smb_tag_to_hpux_tag(smb_entry->a_type);
427 if (hpux_entry.a_type == 0) {
428 DEBUG(10, ("smb_tag to hpux_tag failed\n"));
431 switch(hpux_entry.a_type) {
433 DEBUG(10, ("got tag type USER with uid %d\n",
435 hpux_entry.a_id = (uid_t)smb_entry->uid;
438 DEBUG(10, ("got tag type GROUP with gid %d\n",
440 hpux_entry.a_id = (uid_t)smb_entry->gid;
445 if (type == SMB_ACL_TYPE_DEFAULT) {
446 DEBUG(10, ("adding default bit to hpux ace\n"));
447 hpux_entry.a_type |= ACL_DEFAULT;
451 smb_perm_to_hpux_perm(smb_entry->a_perm);
452 DEBUG(10, ("assembled the following hpux ace:\n"));
453 DEBUGADD(10, (" - type: 0x%04x\n", hpux_entry.a_type));
454 DEBUGADD(10, (" - id: %d\n", hpux_entry.a_id));
455 DEBUGADD(10, (" - perm: o%o\n", hpux_entry.a_perm));
456 if (!hpux_add_to_acl(hpux_acl, count, &hpux_entry,
459 DEBUG(10, ("error adding acl entry\n"));
462 DEBUG(10, ("count after adding: %d (i: %d)\n", *count, i));
463 DEBUG(10, ("test, if entry has been copied into acl:\n"));
464 DEBUGADD(10, (" - type: 0x%04x\n",
465 (*hpux_acl)[(*count)-1].a_type));
466 DEBUGADD(10, (" - id: %d\n",
467 (*hpux_acl)[(*count)-1].a_id));
468 DEBUGADD(10, (" - perm: o%o\n",
469 (*hpux_acl)[(*count)-1].a_perm));
476 SAFE_FREE(*hpux_acl);
478 DEBUG(10, ("smb_acl_to_hpux_acl %s\n",
479 ((ret == True) ? "succeeded" : "failed")));
484 * convert either the access or the default part of a
485 * soaris acl to the SMB_ACL format.
487 static SMB_ACL_T hpux_acl_to_smb_acl(HPUX_ACL_T hpux_acl, int count,
493 if ((result = sys_acl_init(0)) == NULL) {
494 DEBUG(10, ("error allocating memory for SMB_ACL\n"));
497 for (i = 0; i < count; i++) {
498 SMB_ACL_ENTRY_T smb_entry;
499 SMB_ACL_PERM_T smb_perm;
501 if (!_IS_OF_TYPE(hpux_acl[i], type)) {
504 result = SMB_REALLOC(result,
505 sizeof(struct smb_acl_t) +
506 (sizeof(struct smb_acl_entry) *
507 (result->count + 1)));
508 if (result == NULL) {
509 DEBUG(10, ("error reallocating memory for SMB_ACL\n"));
512 smb_entry = &result->acl[result->count];
513 if (sys_acl_set_tag_type(smb_entry,
514 hpux_tag_to_smb_tag(hpux_acl[i].a_type)) != 0)
516 DEBUG(10, ("invalid tag type given: 0x%04x\n",
517 hpux_acl[i].a_type));
520 /* intentionally not checking return code here: */
521 sys_acl_set_qualifier(smb_entry, (void *)&hpux_acl[i].a_id);
522 smb_perm = hpux_perm_to_smb_perm(hpux_acl[i].a_perm);
523 if (sys_acl_set_permset(smb_entry, &smb_perm) != 0) {
524 DEBUG(10, ("invalid permset given: %d\n",
525 hpux_acl[i].a_perm));
535 DEBUG(10, ("hpux_acl_to_smb_acl %s\n",
536 ((result == NULL) ? "failed" : "succeeded")));
542 static HPUX_ACL_TAG_T smb_tag_to_hpux_tag(SMB_ACL_TAG_T smb_tag)
544 HPUX_ACL_TAG_T hpux_tag = 0;
546 DEBUG(10, ("smb_tag_to_hpux_tag\n"));
547 DEBUGADD(10, (" --> got smb tag 0x%04x\n", smb_tag));
553 case SMB_ACL_USER_OBJ:
559 case SMB_ACL_GROUP_OBJ:
560 hpux_tag = GROUP_OBJ;
563 hpux_tag = OTHER_OBJ;
566 hpux_tag = CLASS_OBJ;
569 DEBUGADD(10, (" !!! unknown smb tag type 0x%04x\n", smb_tag));
573 DEBUGADD(10, (" --> determined hpux tag 0x%04x\n", hpux_tag));
578 static SMB_ACL_TAG_T hpux_tag_to_smb_tag(HPUX_ACL_TAG_T hpux_tag)
580 SMB_ACL_TAG_T smb_tag = 0;
582 DEBUG(10, ("hpux_tag_to_smb_tag:\n"));
583 DEBUGADD(10, (" --> got hpux tag 0x%04x\n", hpux_tag));
585 hpux_tag &= ~ACL_DEFAULT;
589 smb_tag = SMB_ACL_USER;
592 smb_tag = SMB_ACL_USER_OBJ;
595 smb_tag = SMB_ACL_GROUP;
598 smb_tag = SMB_ACL_GROUP_OBJ;
601 smb_tag = SMB_ACL_OTHER;
604 smb_tag = SMB_ACL_MASK;
607 DEBUGADD(10, (" !!! unknown hpux tag type: 0x%04x\n",
612 DEBUGADD(10, (" --> determined smb tag 0x%04x\n", smb_tag));
619 * The permission bits used in the following two permission conversion
620 * functions are same, but the functions make us independent of the concrete
621 * permission data types.
623 static SMB_ACL_PERM_T hpux_perm_to_smb_perm(const HPUX_PERM_T perm)
625 SMB_ACL_PERM_T smb_perm = 0;
626 smb_perm |= ((perm & SMB_ACL_READ) ? SMB_ACL_READ : 0);
627 smb_perm |= ((perm & SMB_ACL_WRITE) ? SMB_ACL_WRITE : 0);
628 smb_perm |= ((perm & SMB_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
633 static HPUX_PERM_T smb_perm_to_hpux_perm(const SMB_ACL_PERM_T perm)
635 HPUX_PERM_T hpux_perm = 0;
636 hpux_perm |= ((perm & SMB_ACL_READ) ? SMB_ACL_READ : 0);
637 hpux_perm |= ((perm & SMB_ACL_WRITE) ? SMB_ACL_WRITE : 0);
638 hpux_perm |= ((perm & SMB_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
643 static BOOL hpux_acl_get_file(const char *name, HPUX_ACL_T *hpux_acl,
647 static HPUX_ACE_T dummy_ace;
649 DEBUG(10, ("hpux_acl_get_file called for file '%s'\n", name));
652 * The original code tries some INITIAL_ACL_SIZE
653 * and only did the ACL_CNT call upon failure
654 * (for performance reasons).
655 * For the sake of simplicity, I skip this for now.
657 * NOTE: There is a catch here on HP-UX: acl with cmd parameter
658 * ACL_CNT fails with errno EINVAL when called with a NULL
659 * pointer as last argument. So we need to use a dummy acl
660 * struct here (we make it static so it does not need to be
661 * instantiated or malloced each time this function is
662 * called). Btw: the count parameter does not seem to matter...
664 *count = acl(CONST_DISCARD(char *, name), ACL_CNT, 0, &dummy_ace);
666 DEBUG(10, ("acl ACL_CNT failed: %s\n", strerror(errno)));
669 *hpux_acl = hpux_acl_init(*count);
670 if (*hpux_acl == NULL) {
671 DEBUG(10, ("error allocating memory for hpux acl...\n"));
674 *count = acl(CONST_DISCARD(char *, name), ACL_GET, *count, *hpux_acl);
676 DEBUG(10, ("acl ACL_GET failed: %s\n", strerror(errno)));
682 DEBUG(10, ("hpux_acl_get_file %s.\n",
683 ((result == True) ? "succeeded" : "failed" )));
691 * Add entries to a hpux ACL.
693 * Entries are directly added to the hpuxacl parameter.
694 * if memory allocation fails, this may result in hpuxacl
695 * being NULL. if the resulting acl is to be checked and is
696 * not valid, it is kept in hpuxacl but False is returned.
698 * The type of ACEs (access/default) to be added to the ACL can
699 * be selected via the type parameter.
700 * I use the SMB_ACL_TYPE_T type here. Since SMB_ACL_TYPE_ACCESS
701 * is defined as "0", this means that one can only add either
702 * access or default ACEs from the given ACL, not both at the same
703 * time. If it should become necessary to add all of an ACL, one
704 * would have to replace this parameter by another type.
706 static BOOL hpux_add_to_acl(HPUX_ACL_T *hpux_acl, int *count,
707 HPUX_ACL_T add_acl, int add_count,
712 if ((type != SMB_ACL_TYPE_ACCESS) && (type != SMB_ACL_TYPE_DEFAULT))
714 DEBUG(10, ("invalid acl type given: %d\n", type));
718 for (i = 0; i < add_count; i++) {
719 if (!_IS_OF_TYPE(add_acl[i], type)) {
722 ADD_TO_ARRAY(NULL, HPUX_ACE_T, add_acl[i],
724 if (hpux_acl == NULL) {
725 DEBUG(10, ("error enlarging acl.\n"));
735 * sort the ACL and check it for validity
737 * [original comment from lib/sysacls.c:]
739 * if it's a minimal ACL with only 4 entries then we
740 * need to recalculate the mask permissions to make
741 * sure that they are the same as the GROUP_OBJ
742 * permissions as required by the UnixWare acl() system call.
744 * (note: since POSIX allows minimal ACLs which only contain
745 * 3 entries - ie there is no mask entry - we should, in theory,
746 * check for this and add a mask entry if necessary - however
747 * we "know" that the caller of this interface always specifies
748 * a mask, so in practice "this never happens" (tm) - if it *does*
749 * happen aclsort() will fail and return an error and someone will
752 static BOOL hpux_acl_sort(HPUX_ACL_T hpux_acl, int count)
754 int fixmask = (count <= 4);
756 if (hpux_internal_aclsort(count, fixmask, hpux_acl) != 0) {
765 * Helpers for hpux_internal_aclsort:
767 * - hpux_swap_acl_entries
768 * - hpux_prohibited_duplicate_type
769 * - hpux_get_needed_class_perm
773 * Counts the different number of objects in a given array of ACL
777 * acl_count - Count of ACLs in the array of ACL strucutres.
778 * aclp - Array of ACL structures.
779 * acl_type_count - Pointer to acl_types structure. Should already be
783 * acl_type_count - This structure is filled up with counts of various
787 static void hpux_count_obj(int acl_count, HPUX_ACL_T aclp, struct hpux_acl_types *acl_type_count)
791 memset(acl_type_count, 0, sizeof(struct hpux_acl_types));
793 for(i=0;i<acl_count;i++) {
794 switch(aclp[i].a_type) {
796 acl_type_count->n_user++;
799 acl_type_count->n_user_obj++;
802 acl_type_count->n_def_user_obj++;
805 acl_type_count->n_group++;
808 acl_type_count->n_group_obj++;
811 acl_type_count->n_def_group_obj++;
814 acl_type_count->n_other_obj++;
817 acl_type_count->n_def_other_obj++;
820 acl_type_count->n_class_obj++;
823 acl_type_count->n_def_class_obj++;
826 acl_type_count->n_def_user++;
829 acl_type_count->n_def_group++;
832 acl_type_count->n_illegal_obj++;
838 /* hpux_swap_acl_entries: Swaps two ACL entries.
840 * Inputs: aclp0, aclp1 - ACL entries to be swapped.
843 static void hpux_swap_acl_entries(HPUX_ACE_T *aclp0, HPUX_ACE_T *aclp1)
847 temp_acl.a_type = aclp0->a_type;
848 temp_acl.a_id = aclp0->a_id;
849 temp_acl.a_perm = aclp0->a_perm;
851 aclp0->a_type = aclp1->a_type;
852 aclp0->a_id = aclp1->a_id;
853 aclp0->a_perm = aclp1->a_perm;
855 aclp1->a_type = temp_acl.a_type;
856 aclp1->a_id = temp_acl.a_id;
857 aclp1->a_perm = temp_acl.a_perm;
860 /* hpux_prohibited_duplicate_type
861 * Identifies if given ACL type can have duplicate entries or
864 * Inputs: acl_type - ACL Type.
870 * True - If the ACL type matches any of the prohibited types.
871 * False - If the ACL type doesn't match any of the prohibited types.
874 static BOOL hpux_prohibited_duplicate_type(int acl_type)
887 /* hpux_get_needed_class_perm
888 * Returns the permissions of a ACL structure only if the ACL
889 * type matches one of the pre-determined types for computing
890 * CLASS_OBJ permissions.
892 * Inputs: aclp - Pointer to ACL structure.
895 static int hpux_get_needed_class_perm(struct acl *aclp)
897 switch(aclp->a_type) {
913 /* hpux_internal_aclsort: aclsort for HPUX.
915 * -> The aclsort() system call is availabe on the latest HPUX General
916 * -> Patch Bundles. So for HPUX, we developed our version of aclsort
917 * -> function. Because, we don't want to update to a new
918 * -> HPUX GR bundle just for aclsort() call.
920 * aclsort sorts the array of ACL structures as per the description in
921 * aclsort man page. Refer to aclsort man page for more details
925 * acl_count - Count of ACLs in the array of ACL structures.
926 * calclass - If this is not zero, then we compute the CLASS_OBJ
928 * aclp - Array of ACL structures.
932 * aclp - Sorted array of ACL structures.
936 * Returns 0 for success -1 for failure. Prints a message to the Samba
937 * debug log in case of failure.
940 static int hpux_internal_aclsort(int acl_count, int calclass, HPUX_ACL_T aclp)
942 struct hpux_acl_types acl_obj_count;
943 int n_class_obj_perm = 0;
946 DEBUG(10,("Entering hpux_internal_aclsort. (calclass = %d)\n", calclass));
948 if (hpux_aclsort_call_present()) {
949 DEBUG(10, ("calling hpux aclsort\n"));
950 return aclsort(acl_count, calclass, aclp);
953 DEBUG(10, ("using internal aclsort\n"));
956 DEBUG(10,("Zero acl count passed. Returning Success\n"));
961 DEBUG(0,("Null ACL pointer in hpux_acl_sort. Returning Failure. \n"));
965 /* Count different types of ACLs in the ACLs array */
967 hpux_count_obj(acl_count, aclp, &acl_obj_count);
969 /* There should be only one entry each of type USER_OBJ, GROUP_OBJ,
970 * CLASS_OBJ and OTHER_OBJ
973 if ( (acl_obj_count.n_user_obj != 1) ||
974 (acl_obj_count.n_group_obj != 1) ||
975 (acl_obj_count.n_class_obj != 1) ||
976 (acl_obj_count.n_other_obj != 1) )
978 DEBUG(0,("hpux_internal_aclsort: More than one entry or no entries for \
979 USER OBJ or GROUP_OBJ or OTHER_OBJ or CLASS_OBJ\n"));
983 /* If any of the default objects are present, there should be only
987 if ( (acl_obj_count.n_def_user_obj > 1) ||
988 (acl_obj_count.n_def_group_obj > 1) ||
989 (acl_obj_count.n_def_other_obj > 1) ||
990 (acl_obj_count.n_def_class_obj > 1) )
992 DEBUG(0,("hpux_internal_aclsort: More than one entry for DEF_CLASS_OBJ \
993 or DEF_USER_OBJ or DEF_GROUP_OBJ or DEF_OTHER_OBJ\n"));
997 /* We now have proper number of OBJ and DEF_OBJ entries. Now sort the acl
1000 * Sorting crieteria - First sort by ACL type. If there are multiple entries of
1001 * same ACL type, sort by ACL id.
1003 * I am using the trival kind of sorting method here because, performance isn't
1004 * really effected by the ACLs feature. More over there aren't going to be more
1005 * than 17 entries on HPUX.
1008 for(i=0; i<acl_count;i++) {
1009 for (j=i+1; j<acl_count; j++) {
1010 if( aclp[i].a_type > aclp[j].a_type ) {
1011 /* ACL entries out of order, swap them */
1012 hpux_swap_acl_entries((aclp+i), (aclp+j));
1013 } else if ( aclp[i].a_type == aclp[j].a_type ) {
1014 /* ACL entries of same type, sort by id */
1015 if(aclp[i].a_id > aclp[j].a_id) {
1016 hpux_swap_acl_entries((aclp+i), (aclp+j));
1017 } else if (aclp[i].a_id == aclp[j].a_id) {
1018 /* We have a duplicate entry. */
1019 if(hpux_prohibited_duplicate_type(aclp[i].a_type)) {
1020 DEBUG(0, ("hpux_internal_aclsort: Duplicate entry: Type(hex): %x Id: %d\n",
1021 aclp[i].a_type, aclp[i].a_id));
1029 /* set the class obj permissions to the computed one. */
1031 int n_class_obj_index = -1;
1033 for(i=0;i<acl_count;i++) {
1034 n_class_obj_perm |= hpux_get_needed_class_perm((aclp+i));
1036 if(aclp[i].a_type == CLASS_OBJ)
1037 n_class_obj_index = i;
1039 aclp[n_class_obj_index].a_perm = n_class_obj_perm;
1047 * hpux_acl_call_present:
1049 * This checks if the POSIX ACL system call is defined
1050 * which basically corresponds to whether JFS 3.3 or
1051 * higher is installed. If acl() was called when it
1052 * isn't defined, it causes the process to core dump
1053 * so it is important to check this and avoid acl()
1054 * calls if it isn't there.
1057 static BOOL hpux_acl_call_present(void)
1060 shl_t handle = NULL;
1063 static BOOL already_checked = False;
1070 ret_val = shl_findsym(&handle, "acl", TYPE_PROCEDURE, &value);
1073 DEBUG(5, ("hpux_acl_call_present: shl_findsym() returned %d, errno = %d, error %s\n",
1074 ret_val, errno, strerror(errno)));
1075 DEBUG(5,("hpux_acl_call_present: acl() system call is not present. Check if you have JFS 3.3 and above?\n"));
1080 DEBUG(10,("hpux_acl_call_present: acl() system call is present. We have JFS 3.3 or above \n"));
1082 already_checked = True;
1087 * runtime check for presence of aclsort library call.
1088 * same code as for acl call. if there are more of these,
1089 * a dispatcher function could be handy...
1092 static BOOL hpux_aclsort_call_present(void)
1094 shl_t handle = NULL;
1097 static BOOL already_checked = False;
1099 if (already_checked) {
1104 ret_val = shl_findsym(&handle, "aclsort", TYPE_PROCEDURE, &value);
1106 DEBUG(5, ("hpux_aclsort_call_present: shl_findsym "
1107 "returned %d, errno = %d, error %s",
1108 ret_val, errno, strerror(errno)));
1109 DEBUG(5, ("hpux_aclsort_call_present: "
1110 "aclsort() function not available.\n"));
1113 DEBUG(10,("hpux_aclsort_call_present: aclsort() function present.\n"));
1114 already_checked = True;
1120 * acl check function:
1121 * unused at the moment but could be used to get more
1122 * concrete error messages for debugging...
1123 * (acl sort just says that the acl is invalid...)
1125 static BOOL hpux_acl_check(HPUX_ACL_T hpux_acl, int count)
1130 check_rc = aclcheck(hpux_acl, count, &check_which);
1131 if (check_rc != 0) {
1132 DEBUG(10, ("acl is not valid:\n"));
1133 DEBUGADD(10, (" - return code: %d\n", check_rc));
1134 DEBUGADD(10, (" - which: %d\n", check_which));
1135 if (check_which != -1) {
1136 DEBUGADD(10, (" - invalid entry:\n"));
1137 DEBUGADD(10, (" * type: %d:\n",
1138 hpux_acl[check_which].a_type));
1139 DEBUGADD(10, (" * id: %d\n",
1140 hpux_acl[check_which].a_id));
1141 DEBUGADD(10, (" * perm: 0o%o\n",
1142 hpux_acl[check_which].a_perm));
1150 /* VFS operations structure */
1152 static vfs_op_tuple hpuxacl_op_tuples[] = {
1153 /* Disk operations */
1154 {SMB_VFS_OP(hpuxacl_sys_acl_get_file),
1155 SMB_VFS_OP_SYS_ACL_GET_FILE,
1156 SMB_VFS_LAYER_TRANSPARENT},
1158 {SMB_VFS_OP(hpuxacl_sys_acl_get_fd),
1159 SMB_VFS_OP_SYS_ACL_GET_FD,
1160 SMB_VFS_LAYER_TRANSPARENT},
1162 {SMB_VFS_OP(hpuxacl_sys_acl_set_file),
1163 SMB_VFS_OP_SYS_ACL_SET_FILE,
1164 SMB_VFS_LAYER_TRANSPARENT},
1166 {SMB_VFS_OP(hpuxacl_sys_acl_set_fd),
1167 SMB_VFS_OP_SYS_ACL_SET_FD,
1168 SMB_VFS_LAYER_TRANSPARENT},
1170 {SMB_VFS_OP(hpuxacl_sys_acl_delete_def_file),
1171 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
1172 SMB_VFS_LAYER_TRANSPARENT},
1179 NTSTATUS vfs_hpuxacl_init(void)
1181 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "hpuxacl",