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 "system/filesys.h"
22 #include "smbd/smbd.h"
23 #include "nfs4_acls.h"
24 #include "vfs_aixacl_util.h"
27 #define DBGC_CLASS DBGC_VFS
29 #define AIXACL2_MODULE_NAME "aixacl2"
31 typedef union aixjfs2_acl_t {
32 nfs4_acl_int_t jfs2_acl[1];
33 aixc_acl_t aixc_acl[1];
36 static int32_t aixacl2_getlen(AIXJFS2_ACL_T *acl, acl_type_t *type)
40 if(type->u64 == ACL_NFS4) {
41 len = acl->jfs2_acl[0].aclLength;
44 if(type->u64 == ACL_AIXC) {
45 len = acl->aixc_acl[0].acl_len;
47 DEBUG(0,("aixacl2_getlen:unknown type:%d\n",type->u64));
51 DEBUG(10,("aixacl2_getlen:%d\n",len));
55 static AIXJFS2_ACL_T *aixjfs2_getacl_alloc(const char *fname, acl_type_t *type)
64 mem_ctx = talloc_tos();
65 acl = (AIXJFS2_ACL_T *)TALLOC_SIZE(mem_ctx, len);
71 if(type->u64 == ACL_ANY) {
72 ctl_flag = ctl_flag | GET_ACLINFO_ONLY;
75 ret = aclx_get((char *)fname, ctl_flag, type, acl, &len, &mode);
76 if ((ret != 0) && (errno == ENOSPC)) {
77 len = aixacl2_getlen(acl, type) + sizeof(AIXJFS2_ACL_T);
78 DEBUG(10,("aixjfs2_getacl_alloc - acl_len:%d\n",len));
80 acl = (AIXJFS2_ACL_T *)TALLOC_SIZE(mem_ctx, len);
86 ret = aclx_get((char *)fname, ctl_flag, type, acl, &len, &mode);
89 DEBUG(8, ("aclx_get failed with %s\n", strerror(errno)));
96 static bool aixjfs2_get_nfs4_acl(TALLOC_CTX *mem_ctx, const char *name,
97 SMB4ACL_T **ppacl, bool *pretryPosix)
101 AIXJFS2_ACL_T *pacl = NULL;
102 nfs4_acl_int_t *jfs2_acl = NULL;
103 nfs4_ace_int_t *jfs2_ace = NULL;
106 DEBUG(10,("jfs2 get_nt_acl invoked for %s\n", name));
108 memset(&type, 0, sizeof(acl_type_t));
111 pacl = aixjfs2_getacl_alloc(name, &type);
113 DEBUG(9, ("aixjfs2_getacl_alloc failed for %s with %s\n",
114 name, strerror(errno)));
120 jfs2_acl = &pacl->jfs2_acl[0];
121 DEBUG(10, ("len: %d, version: %d, nace: %d, type: 0x%x\n",
122 jfs2_acl->aclLength, jfs2_acl->aclVersion, jfs2_acl->aclEntryN, type.u64));
124 *ppacl = smb_create_smb4acl(mem_ctx);
128 jfs2_ace = &jfs2_acl->aclEntry[0];
129 for (i=0; i<jfs2_acl->aclEntryN; i++) {
130 SMB_ACE4PROP_T aceprop;
132 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
133 "who: %d, aclLen: %d\n", jfs2_ace->aceType, jfs2_ace->flags,
134 jfs2_ace->aceFlags, jfs2_ace->aceMask, jfs2_ace->aceWho.id, jfs2_ace->entryLen));
136 aceprop.aceType = jfs2_ace->aceType;
137 aceprop.aceFlags = jfs2_ace->aceFlags;
138 aceprop.aceMask = jfs2_ace->aceMask;
139 aceprop.flags = (jfs2_ace->flags&ACE4_ID_SPECIAL) ? SMB_ACE4_ID_SPECIAL : 0;
141 /* don't care it's real content is only 16 or 32 bit */
142 aceprop.who.id = jfs2_ace->aceWho.id;
144 if (smb_add_ace4(*ppacl, &aceprop)==NULL)
147 /* iterate to the next jfs2 ace */
148 jfs2_ace = (nfs4_ace_int_t *)(((char *)jfs2_ace) + jfs2_ace->entryLen);
151 DEBUG(10,("jfs2 get_nt_acl finished successfully\n"));
156 static NTSTATUS aixjfs2_fget_nt_acl(vfs_handle_struct *handle,
157 files_struct *fsp, uint32 security_info,
159 struct security_descriptor **ppdesc)
162 SMB4ACL_T *pacl = NULL;
164 bool retryPosix = False;
165 TALLOC_CTX *frame = talloc_stackframe();
168 result = aixjfs2_get_nfs4_acl(frame, fsp->fsp_name->base_name, &pacl,
173 DEBUG(10, ("retrying with posix acl...\n"));
174 return posix_fget_nt_acl(fsp, security_info,
179 return NT_STATUS_ACCESS_DENIED;
182 status = smb_fget_nt_acl_nfs4(fsp, security_info, ppdesc,
188 static NTSTATUS aixjfs2_get_nt_acl(vfs_handle_struct *handle,
190 uint32 security_info,
192 struct security_descriptor **ppdesc)
194 SMB4ACL_T *pacl = NULL;
196 bool retryPosix = False;
199 result = aixjfs2_get_nfs4_acl(mem_ctx, name, &pacl, &retryPosix);
202 DEBUG(10, ("retrying with posix acl...\n"));
203 return posix_get_nt_acl(handle->conn, name, security_info,
207 return NT_STATUS_ACCESS_DENIED;
209 return smb_get_nt_acl_nfs4(handle->conn, name, security_info,
214 static int aixjfs2_sys_acl_blob_get_file(vfs_handle_struct *handle, const char *path_p, TALLOC_CTX *mem_ctx, char **blob_description, DATA_BLOB *blob)
216 SMB4ACL_T *pacl = NULL;
218 bool retryPosix = False;
220 result = aixjfs2_get_nfs4_acl(mem_ctx, path_p, &pacl, &retryPosix);
223 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
224 blob_description, blob);
226 /* Now way to linarlise NFS4 ACLs at the moment, but the NT ACL is pretty close in this case */
231 static int aixjfs2_sys_acl_blob_get_fd(vfs_handle_struct *handle, files_struct *fsp, TALLOC_CTX *mem_ctx, char **blob_description, DATA_BLOB *blob)
233 SMB4ACL_T *pacl = NULL;
235 bool retryPosix = False;
237 result = aixjfs2_get_nfs4_acl(mem_ctx, fsp->fsp_name->base_name, &pacl,
241 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx, blob_description, blob);
244 /* Now way to linarlise NFS4 ACLs at the moment, but the NT ACL is pretty close in this case */
249 static SMB_ACL_T aixjfs2_get_posix_acl(const char *path, acl_type_t type, TALLOC_CTX *mem_ctx)
253 SMB_ACL_T result = NULL;
256 acl = aixjfs2_getacl_alloc(path, &type);
259 DEBUG(10, ("aixjfs2_getacl failed for %s with %s\n",
260 path, strerror(errno)));
267 pacl = &acl->aixc_acl[0];
268 DEBUG(10, ("len: %d, mode: %d\n",
269 pacl->acl_len, pacl->acl_mode));
271 result = aixacl_to_smbacl(pacl, mem_ctx);
272 if (result == NULL) {
283 SMB_ACL_T aixjfs2_sys_acl_get_file(vfs_handle_struct *handle,
288 acl_type_t aixjfs2_type;
291 case SMB_ACL_TYPE_ACCESS:
292 aixjfs2_type.u64 = ACL_AIXC;
294 case SMB_ACL_TYPE_DEFAULT:
295 DEBUG(0, ("Got AIX JFS2 unsupported type: %d\n", type));
298 DEBUG(0, ("Got invalid type: %d\n", type));
299 smb_panic("exiting");
302 return aixjfs2_get_posix_acl(path_p, aixjfs2_type, mem_ctx);
305 SMB_ACL_T aixjfs2_sys_acl_get_fd(vfs_handle_struct *handle,
306 files_struct *fsp, TALLOC_CTX *mem_ctx)
308 acl_type_t aixjfs2_type;
309 aixjfs2_type.u64 = ACL_AIXC;
311 return aixjfs2_get_posix_acl(fsp->fsp_name->base_name,
312 aixjfs2_type, mem_ctx);
316 * Test whether we have that aclType support on the given path
318 static int aixjfs2_query_acl_support(
321 acl_type_t *pacl_type_info
324 acl_types_list_t acl_type_list;
325 size_t acl_type_list_len = sizeof(acl_types_list_t);
328 memset(&acl_type_list, 0, sizeof(acl_type_list));
330 if (aclx_gettypes(filepath, &acl_type_list, &acl_type_list_len)) {
331 DEBUG(2, ("aclx_gettypes failed with error %s for %s\n",
332 strerror(errno), filepath));
336 for(i=0; i<acl_type_list.num_entries; i++) {
337 if (acl_type_list.entries[i].u64==aclType) {
338 memcpy(pacl_type_info, acl_type_list.entries + i, sizeof(acl_type_t));
339 DEBUG(10, ("found %s ACL support for %s\n",
340 pacl_type_info->acl_type, filepath));
345 return 1; /* haven't found that ACL type. */
348 static bool aixjfs2_process_smbacl(vfs_handle_struct *handle, files_struct *fsp, SMB4ACL_T *smbacl)
352 nfs4_acl_int_t *jfs2acl;
354 uint32 aclLen, naces;
358 DEBUG(10, ("jfs2_process_smbacl invoked on %s\n", fsp_str_dbg(fsp)));
360 /* no need to be freed which is alloced with mem_ctx */
361 mem_ctx = talloc_tos();
363 entryLen = sizeof(nfs4_ace_int_t);
365 entryLen = entryLen + 4 - (entryLen%4);
367 naces = smb_get_naces(smbacl);
368 aclLen = ACL_V4_SIZ + naces * entryLen;
369 jfs2acl = (nfs4_acl_int_t *)TALLOC_SIZE(mem_ctx, aclLen);
371 DEBUG(0, ("TALLOC_SIZE failed\n"));
376 jfs2acl->aclLength = ACL_V4_SIZ;
377 jfs2acl->aclVersion = NFS4_ACL_INT_STRUCT_VERSION;
378 jfs2acl->aclEntryN = 0;
380 for(smbace = smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace))
382 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
383 nfs4_ace_int_t *jfs2_ace = (nfs4_ace_int_t *)(((char *)jfs2acl) + jfs2acl->aclLength);
385 memset(jfs2_ace, 0, entryLen);
386 jfs2_ace->entryLen = entryLen; /* won't store textual "who" */
387 jfs2_ace->aceType = aceprop->aceType; /* only ACCES|DENY supported by jfs2 */
388 jfs2_ace->aceFlags = aceprop->aceFlags;
389 jfs2_ace->aceMask = aceprop->aceMask;
390 jfs2_ace->flags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_ID_SPECIAL : 0;
392 /* don't care it's real content is only 16 or 32 bit */
393 jfs2_ace->aceWho.id = aceprop->who.id;
395 /* iterate to the next jfs2 ace */
396 jfs2acl->aclLength += jfs2_ace->entryLen;
397 jfs2acl->aclEntryN++;
399 SMB_ASSERT(jfs2acl->aclEntryN==naces);
401 /* Don't query it (again) */
402 memset(&acltype, 0, sizeof(acl_type_t));
403 acltype.u64 = ACL_NFS4;
405 /* won't set S_ISUID - the only one JFS2/NFS4 accepts */
407 fsp->fsp_name->base_name,
408 SET_ACL, /* set only the ACL, not mode bits */
409 acltype, /* not a pointer !!! */
412 0 /* don't set here mode bits */
415 DEBUG(8, ("aclx_put failed with %s\n", strerror(errno)));
419 DEBUG(10, ("jfs2_process_smbacl succeeded.\n"));
423 static NTSTATUS aixjfs2_set_nt_acl_common(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
425 acl_type_t acl_type_info;
426 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
429 rc = aixjfs2_query_acl_support(
430 fsp->fsp_name->base_name,
436 result = smb_set_nt_acl_nfs4(handle,
437 fsp, security_info_sent, psd,
438 aixjfs2_process_smbacl);
439 } else if (rc==1) { /* assume POSIX ACL - by default... */
440 result = set_nt_acl(fsp, security_info_sent, psd);
442 result = map_nt_error_from_unix(errno); /* query failed */
447 NTSTATUS aixjfs2_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
449 return aixjfs2_set_nt_acl_common(handle, fsp, security_info_sent, psd);
452 int aixjfs2_sys_acl_set_file(vfs_handle_struct *handle,
457 struct acl *acl_aixc;
458 acl_type_t acl_type_info;
461 DEBUG(10, ("aixjfs2_sys_acl_set_file invoked for %s", name));
463 rc = aixjfs2_query_acl_support((char *)name, ACL_AIXC, &acl_type_info);
465 DEBUG(8, ("jfs2_set_nt_acl: AIXC support not found\n"));
469 acl_aixc = aixacl_smb_to_aixacl(type, theacl);
475 SET_ACL, /* set only the ACL, not mode bits */
482 DEBUG(2, ("aclx_put failed with %s for %s\n",
483 strerror(errno), name));
490 int aixjfs2_sys_acl_set_fd(vfs_handle_struct *handle,
494 struct acl *acl_aixc;
495 acl_type_t acl_type_info;
498 DEBUG(10, ("aixjfs2_sys_acl_set_fd invoked for %s", fsp_str_dbg(fsp)));
500 rc = aixjfs2_query_acl_support(fsp->fsp_name->base_name, ACL_AIXC,
503 DEBUG(8, ("jfs2_set_nt_acl: AIXC support not found\n"));
507 acl_aixc = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl);
513 SET_ACL, /* set only the ACL, not mode bits */
520 DEBUG(2, ("aclx_fput failed with %s for %s\n",
521 strerror(errno), fsp_str_dbg(fsp)));
528 int aixjfs2_sys_acl_delete_def_file(vfs_handle_struct *handle,
531 /* Not available under AIXC ACL */
532 /* Don't report here any error otherwise */
533 /* upper layer will break the normal execution */
537 static struct vfs_fn_pointers vfs_aixacl2_fns = {
538 .fget_nt_acl_fn = aixjfs2_fget_nt_acl,
539 .get_nt_acl_fn = aixjfs2_get_nt_acl,
540 .fset_nt_acl_fn = aixjfs2_fset_nt_acl,
541 .sys_acl_get_file_fn = aixjfs2_sys_acl_get_file,
542 .sys_acl_get_fd_fn = aixjfs2_sys_acl_get_fd,
543 .sys_acl_blob_get_file_fn = aixjfs2_sys_acl_blob_get_file,
544 .sys_acl_blob_get_fd_fn = aixjfs2_sys_acl_blob_get_fd,
545 .sys_acl_set_file_fn = aixjfs2_sys_acl_set_file,
546 .sys_acl_set_fd_fn = aixjfs2_sys_acl_set_fd,
547 .sys_acl_delete_def_file_fn = aixjfs2_sys_acl_delete_def_file
550 NTSTATUS vfs_aixacl2_init(void);
551 NTSTATUS vfs_aixacl2_init(void)
553 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, AIXACL2_MODULE_NAME,