2 * Convert JFS2 NFS4/AIXC acls to NT acls and vice versa.
4 * Copyright (C) Volker Lendecke, 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 #include "smbd/smbd.h"
22 #include "nfs4_acls.h"
25 #define DBGC_CLASS DBGC_VFS
27 #define AIXACL2_MODULE_NAME "aixacl2"
29 extern SMB_ACL_T aixacl_to_smbacl( struct acl *file_acl);
30 extern struct acl *aixacl_smb_to_aixacl(SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
32 typedef union aixjfs2_acl_t {
33 nfs4_acl_int_t jfs2_acl[1];
34 aixc_acl_t aixc_acl[1];
37 static int32_t aixacl2_getlen(AIXJFS2_ACL_T *acl, acl_type_t *type)
41 if(type->u64 == ACL_NFS4) {
42 len = acl->jfs2_acl[0].aclLength;
45 if(type->u64 == ACL_AIXC) {
46 len = acl->aixc_acl[0].acl_len;
48 DEBUG(0,("aixacl2_getlen:unknown type:%d\n",type->u64));
52 DEBUG(10,("aixacl2_getlen:%d\n",len));
56 static AIXJFS2_ACL_T *aixjfs2_getacl_alloc(const char *fname, acl_type_t *type)
65 mem_ctx = talloc_tos();
66 acl = (AIXJFS2_ACL_T *)TALLOC_SIZE(mem_ctx, len);
72 if(type->u64 == ACL_ANY) {
73 ctl_flag = ctl_flag | GET_ACLINFO_ONLY;
76 ret = aclx_get((char *)fname, ctl_flag, type, acl, &len, &mode);
77 if ((ret != 0) && (errno == ENOSPC)) {
78 len = aixacl2_getlen(acl, type) + sizeof(AIXJFS2_ACL_T);
79 DEBUG(10,("aixjfs2_getacl_alloc - acl_len:%d\n",len));
81 acl = (AIXJFS2_ACL_T *)TALLOC_SIZE(mem_ctx, len);
87 ret = aclx_get((char *)fname, ctl_flag, type, acl, &len, &mode);
90 DEBUG(8, ("aclx_get failed with %s\n", strerror(errno)));
97 static bool aixjfs2_get_nfs4_acl(const char *name,
98 SMB4ACL_T **ppacl, bool *pretryPosix)
102 AIXJFS2_ACL_T *pacl = NULL;
103 nfs4_acl_int_t *jfs2_acl = NULL;
104 nfs4_ace_int_t *jfs2_ace = NULL;
107 DEBUG(10,("jfs2 get_nt_acl invoked for %s\n", name));
109 memset(&type, 0, sizeof(acl_type_t));
112 pacl = aixjfs2_getacl_alloc(name, &type);
114 DEBUG(9, ("aixjfs2_getacl_alloc failed for %s with %s\n",
115 name, strerror(errno)));
121 jfs2_acl = &pacl->jfs2_acl[0];
122 DEBUG(10, ("len: %d, version: %d, nace: %d, type: 0x%x\n",
123 jfs2_acl->aclLength, jfs2_acl->aclVersion, jfs2_acl->aclEntryN, type.u64));
125 *ppacl = smb_create_smb4acl();
129 jfs2_ace = &jfs2_acl->aclEntry[0];
130 for (i=0; i<jfs2_acl->aclEntryN; i++) {
131 SMB_ACE4PROP_T aceprop;
133 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
134 "who: %d, aclLen: %d\n", jfs2_ace->aceType, jfs2_ace->flags,
135 jfs2_ace->aceFlags, jfs2_ace->aceMask, jfs2_ace->aceWho.id, jfs2_ace->entryLen));
137 aceprop.aceType = jfs2_ace->aceType;
138 aceprop.aceFlags = jfs2_ace->aceFlags;
139 aceprop.aceMask = jfs2_ace->aceMask;
140 aceprop.flags = (jfs2_ace->flags&ACE4_ID_SPECIAL) ? SMB_ACE4_ID_SPECIAL : 0;
142 /* don't care it's real content is only 16 or 32 bit */
143 aceprop.who.id = jfs2_ace->aceWho.id;
145 if (smb_add_ace4(*ppacl, &aceprop)==NULL)
148 /* iterate to the next jfs2 ace */
149 jfs2_ace = (nfs4_ace_int_t *)(((char *)jfs2_ace) + jfs2_ace->entryLen);
152 DEBUG(10,("jfs2 get_nt_acl finished successfully\n"));
157 static NTSTATUS aixjfs2_fget_nt_acl(vfs_handle_struct *handle,
158 files_struct *fsp, uint32 security_info,
159 struct security_descriptor **ppdesc)
161 SMB4ACL_T *pacl = NULL;
163 bool retryPosix = False;
166 result = aixjfs2_get_nfs4_acl(fsp->fsp_name->base_name, &pacl,
170 DEBUG(10, ("retrying with posix acl...\n"));
171 return posix_fget_nt_acl(fsp, security_info, ppdesc);
174 return NT_STATUS_ACCESS_DENIED;
176 return smb_fget_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
179 static NTSTATUS aixjfs2_get_nt_acl(vfs_handle_struct *handle,
181 uint32 security_info, struct security_descriptor **ppdesc)
183 SMB4ACL_T *pacl = NULL;
185 bool retryPosix = False;
188 result = aixjfs2_get_nfs4_acl(name, &pacl, &retryPosix);
191 DEBUG(10, ("retrying with posix acl...\n"));
192 return posix_get_nt_acl(handle->conn, name, security_info,
196 return NT_STATUS_ACCESS_DENIED;
198 return smb_get_nt_acl_nfs4(handle->conn, name, security_info, ppdesc,
202 static SMB_ACL_T aixjfs2_get_posix_acl(const char *path, acl_type_t type)
206 SMB_ACL_T result = NULL;
209 acl = aixjfs2_getacl_alloc(path, &type);
212 DEBUG(10, ("aixjfs2_getacl failed for %s with %s\n",
213 path, strerror(errno)));
220 pacl = &acl->aixc_acl[0];
221 DEBUG(10, ("len: %d, mode: %d\n",
222 pacl->acl_len, pacl->acl_mode));
224 result = aixacl_to_smbacl(pacl);
225 if (result == NULL) {
236 SMB_ACL_T aixjfs2_sys_acl_get_file(vfs_handle_struct *handle,
240 acl_type_t aixjfs2_type;
243 case SMB_ACL_TYPE_ACCESS:
244 aixjfs2_type.u64 = ACL_AIXC;
246 case SMB_ACL_TYPE_DEFAULT:
247 DEBUG(0, ("Got AIX JFS2 unsupported type: %d\n", type));
250 DEBUG(0, ("Got invalid type: %d\n", type));
251 smb_panic("exiting");
254 return aixjfs2_get_posix_acl(path_p, aixjfs2_type);
257 SMB_ACL_T aixjfs2_sys_acl_get_fd(vfs_handle_struct *handle,
260 acl_type_t aixjfs2_type;
261 aixjfs2_type.u64 = ACL_AIXC;
263 return aixjfs2_get_posix_acl(fsp->fsp_name->base_name, aixjfs2_type);
267 * Test whether we have that aclType support on the given path
269 static int aixjfs2_query_acl_support(
272 acl_type_t *pacl_type_info
275 acl_types_list_t acl_type_list;
276 size_t acl_type_list_len = sizeof(acl_types_list_t);
279 memset(&acl_type_list, 0, sizeof(acl_type_list));
281 if (aclx_gettypes(filepath, &acl_type_list, &acl_type_list_len)) {
282 DEBUG(2, ("aclx_gettypes failed with error %s for %s\n",
283 strerror(errno), filepath));
287 for(i=0; i<acl_type_list.num_entries; i++) {
288 if (acl_type_list.entries[i].u64==aclType) {
289 memcpy(pacl_type_info, acl_type_list.entries + i, sizeof(acl_type_t));
290 DEBUG(10, ("found %s ACL support for %s\n",
291 pacl_type_info->acl_type, filepath));
296 return 1; /* haven't found that ACL type. */
299 static bool aixjfs2_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
303 nfs4_acl_int_t *jfs2acl;
305 uint32 aclLen, naces;
309 DEBUG(10, ("jfs2_process_smbacl invoked on %s\n", fsp_str_dbg(fsp)));
311 /* no need to be freed which is alloced with mem_ctx */
312 mem_ctx = talloc_tos();
314 entryLen = sizeof(nfs4_ace_int_t);
316 entryLen = entryLen + 4 - (entryLen%4);
318 naces = smb_get_naces(smbacl);
319 aclLen = ACL_V4_SIZ + naces * entryLen;
320 jfs2acl = (nfs4_acl_int_t *)TALLOC_SIZE(mem_ctx, aclLen);
322 DEBUG(0, ("TALLOC_SIZE failed\n"));
327 jfs2acl->aclLength = ACL_V4_SIZ;
328 jfs2acl->aclVersion = NFS4_ACL_INT_STRUCT_VERSION;
329 jfs2acl->aclEntryN = 0;
331 for(smbace = smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace))
333 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
334 nfs4_ace_int_t *jfs2_ace = (nfs4_ace_int_t *)(((char *)jfs2acl) + jfs2acl->aclLength);
336 memset(jfs2_ace, 0, entryLen);
337 jfs2_ace->entryLen = entryLen; /* won't store textual "who" */
338 jfs2_ace->aceType = aceprop->aceType; /* only ACCES|DENY supported by jfs2 */
339 jfs2_ace->aceFlags = aceprop->aceFlags;
340 jfs2_ace->aceMask = aceprop->aceMask;
341 jfs2_ace->flags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_ID_SPECIAL : 0;
343 /* don't care it's real content is only 16 or 32 bit */
344 jfs2_ace->aceWho.id = aceprop->who.id;
346 /* iterate to the next jfs2 ace */
347 jfs2acl->aclLength += jfs2_ace->entryLen;
348 jfs2acl->aclEntryN++;
350 SMB_ASSERT(jfs2acl->aclEntryN==naces);
352 /* Don't query it (again) */
353 memset(&acltype, 0, sizeof(acl_type_t));
354 acltype.u64 = ACL_NFS4;
356 /* won't set S_ISUID - the only one JFS2/NFS4 accepts */
358 fsp->fsp_name->base_name,
359 SET_ACL, /* set only the ACL, not mode bits */
360 acltype, /* not a pointer !!! */
363 0 /* don't set here mode bits */
366 DEBUG(8, ("aclx_put failed with %s\n", strerror(errno)));
370 DEBUG(10, ("jfs2_process_smbacl succeeded.\n"));
374 static NTSTATUS aixjfs2_set_nt_acl_common(files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
376 acl_type_t acl_type_info;
377 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
380 rc = aixjfs2_query_acl_support(
387 result = smb_set_nt_acl_nfs4(
388 fsp, security_info_sent, psd,
389 aixjfs2_process_smbacl);
390 } else if (rc==1) { /* assume POSIX ACL - by default... */
391 result = set_nt_acl(fsp, security_info_sent, psd);
393 result = map_nt_error_from_unix(errno); /* query failed */
398 NTSTATUS aixjfs2_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
400 return aixjfs2_set_nt_acl_common(fsp, security_info_sent, psd);
403 int aixjfs2_sys_acl_set_file(vfs_handle_struct *handle,
408 struct acl *acl_aixc;
409 acl_type_t acl_type_info;
412 DEBUG(10, ("aixjfs2_sys_acl_set_file invoked for %s", name));
414 rc = aixjfs2_query_acl_support((char *)name, ACL_AIXC, &acl_type_info);
416 DEBUG(8, ("jfs2_set_nt_acl: AIXC support not found\n"));
420 acl_aixc = aixacl_smb_to_aixacl(type, theacl);
426 SET_ACL, /* set only the ACL, not mode bits */
433 DEBUG(2, ("aclx_put failed with %s for %s\n",
434 strerror(errno), name));
441 int aixjfs2_sys_acl_set_fd(vfs_handle_struct *handle,
445 struct acl *acl_aixc;
446 acl_type_t acl_type_info;
449 DEBUG(10, ("aixjfs2_sys_acl_set_fd invoked for %s", fsp_str_dbg(fsp)));
451 rc = aixjfs2_query_acl_support(fsp->fsp_name->base_name, ACL_AIXC,
454 DEBUG(8, ("jfs2_set_nt_acl: AIXC support not found\n"));
458 acl_aixc = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl);
464 SET_ACL, /* set only the ACL, not mode bits */
471 DEBUG(2, ("aclx_fput failed with %s for %s\n",
472 strerror(errno), fsp_str_dbg(fsp)));
479 int aixjfs2_sys_acl_delete_def_file(vfs_handle_struct *handle,
482 /* Not available under AIXC ACL */
483 /* Don't report here any error otherwise */
484 /* upper layer will break the normal execution */
488 static struct vfs_fn_pointers vfs_aixacl2_fns = {
489 .fget_nt_acl = aixjfs2_fget_nt_acl,
490 .get_nt_acl = aixjfs2_get_nt_acl,
491 .fset_nt_acl = aixjfs2_fset_nt_acl,
492 .sys_acl_get_file = aixjfs2_sys_acl_get_file,
493 .sys_acl_get_fd = aixjfs2_sys_acl_get_fd,
494 .sys_acl_set_file = aixjfs2_sys_acl_set_file,
495 .sys_acl_set_fd = aixjfs2_sys_acl_set_fd,
496 .sys_acl_delete_def_file = aixjfs2_sys_acl_delete_def_file
499 NTSTATUS vfs_aixacl2_init(void);
500 NTSTATUS vfs_aixacl2_init(void)
502 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, AIXACL2_MODULE_NAME,