2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (c) Andrew Tridgell 1992-2000,
5 * Copyright (c) Jean François Micouleau 1998-2000.
6 * Copyright (c) Gerald Carter 2002-2005.
7 * Copyright (c) Andreas Schneider 2010.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
24 #include "system/filesys.h"
25 #include "printing/nt_printing_tdb.h"
26 #include "librpc/gen_ndr/spoolss.h"
27 #include "librpc/gen_ndr/ndr_security.h"
28 #include "libcli/security/security.h"
31 #define FORMS_PREFIX "FORMS/"
32 #define DRIVERS_PREFIX "DRIVERS/"
33 #define PRINTERS_PREFIX "PRINTERS/"
34 #define SECDESC_PREFIX "SECDESC/"
36 #define NTDRIVERS_DATABASE_VERSION_1 1
37 #define NTDRIVERS_DATABASE_VERSION_2 2
38 #define NTDRIVERS_DATABASE_VERSION_3 3 /* little endian version of v2 */
39 #define NTDRIVERS_DATABASE_VERSION_4 4 /* fix generic bits in security descriptors */
40 #define NTDRIVERS_DATABASE_VERSION_5 5 /* normalize keys in ntprinters.tdb */
42 static TDB_CONTEXT
*tdb_forms
; /* used for forms files */
43 static TDB_CONTEXT
*tdb_drivers
; /* used for driver files */
44 static TDB_CONTEXT
*tdb_printers
; /* used for printers files */
46 /****************************************************************************
47 generate a new TDB_DATA key for storing a printer
48 ****************************************************************************/
50 static TDB_DATA
make_printer_tdbkey(TALLOC_CTX
*ctx
, const char *sharename
)
56 fstrcpy(share
, sharename
);
59 keystr
= talloc_asprintf(ctx
, "%s%s", PRINTERS_PREFIX
, share
);
60 key
= string_term_tdb_data(keystr
? keystr
: "");
65 /****************************************************************************
66 generate a new TDB_DATA key for storing a printer security descriptor
67 ****************************************************************************/
69 static TDB_DATA
make_printers_secdesc_tdbkey(TALLOC_CTX
*ctx
,
70 const char* sharename
)
76 fstrcpy(share
, sharename
);
79 keystr
= talloc_asprintf(ctx
, "%s%s", SECDESC_PREFIX
, share
);
80 key
= string_term_tdb_data(keystr
? keystr
: "");
85 /****************************************************************************
86 Upgrade the tdb files to version 3
87 ****************************************************************************/
89 static bool upgrade_to_version_3(void)
91 TDB_DATA kbuf
, newkey
, dbuf
;
93 DEBUG(0,("upgrade_to_version_3: upgrading print tdb's to version 3\n"));
95 for (kbuf
= tdb_firstkey(tdb_drivers
); kbuf
.dptr
;
96 newkey
= tdb_nextkey(tdb_drivers
, kbuf
), free(kbuf
.dptr
), kbuf
=newkey
) {
98 dbuf
= tdb_fetch(tdb_drivers
, kbuf
);
100 if (strncmp((const char *)kbuf
.dptr
, FORMS_PREFIX
, strlen(FORMS_PREFIX
)) == 0) {
101 DEBUG(0,("upgrade_to_version_3:moving form\n"));
102 if (tdb_store(tdb_forms
, kbuf
, dbuf
, TDB_REPLACE
) != 0) {
103 SAFE_FREE(dbuf
.dptr
);
104 DEBUG(0,("upgrade_to_version_3: failed to move form. Error (%s).\n", tdb_errorstr(tdb_forms
)));
107 if (tdb_delete(tdb_drivers
, kbuf
) != 0) {
108 SAFE_FREE(dbuf
.dptr
);
109 DEBUG(0,("upgrade_to_version_3: failed to delete form. Error (%s)\n", tdb_errorstr(tdb_drivers
)));
114 if (strncmp((const char *)kbuf
.dptr
, PRINTERS_PREFIX
, strlen(PRINTERS_PREFIX
)) == 0) {
115 DEBUG(0,("upgrade_to_version_3:moving printer\n"));
116 if (tdb_store(tdb_printers
, kbuf
, dbuf
, TDB_REPLACE
) != 0) {
117 SAFE_FREE(dbuf
.dptr
);
118 DEBUG(0,("upgrade_to_version_3: failed to move printer. Error (%s)\n", tdb_errorstr(tdb_printers
)));
121 if (tdb_delete(tdb_drivers
, kbuf
) != 0) {
122 SAFE_FREE(dbuf
.dptr
);
123 DEBUG(0,("upgrade_to_version_3: failed to delete printer. Error (%s)\n", tdb_errorstr(tdb_drivers
)));
128 if (strncmp((const char *)kbuf
.dptr
, SECDESC_PREFIX
, strlen(SECDESC_PREFIX
)) == 0) {
129 DEBUG(0,("upgrade_to_version_3:moving secdesc\n"));
130 if (tdb_store(tdb_printers
, kbuf
, dbuf
, TDB_REPLACE
) != 0) {
131 SAFE_FREE(dbuf
.dptr
);
132 DEBUG(0,("upgrade_to_version_3: failed to move secdesc. Error (%s)\n", tdb_errorstr(tdb_printers
)));
135 if (tdb_delete(tdb_drivers
, kbuf
) != 0) {
136 SAFE_FREE(dbuf
.dptr
);
137 DEBUG(0,("upgrade_to_version_3: failed to delete secdesc. Error (%s)\n", tdb_errorstr(tdb_drivers
)));
142 SAFE_FREE(dbuf
.dptr
);
148 /*******************************************************************
149 Fix an issue with security descriptors. Printer sec_desc must
150 use more than the generic bits that were previously used
151 in <= 3.0.14a. They must also have a owner and group SID assigned.
152 Otherwise, any printers than have been migrated to a Windows
153 host using printmig.exe will not be accessible.
154 *******************************************************************/
156 static int sec_desc_upg_fn( TDB_CONTEXT
*the_tdb
, TDB_DATA key
,
157 TDB_DATA data
, void *state
)
160 struct sec_desc_buf
*sd_orig
= NULL
;
161 struct sec_desc_buf
*sd_new
, *sd_store
;
162 struct security_descriptor
*sec
, *new_sec
;
163 TALLOC_CTX
*ctx
= state
;
168 if (!data
.dptr
|| data
.dsize
== 0) {
172 if ( strncmp((const char *) key
.dptr
, SECDESC_PREFIX
, strlen(SECDESC_PREFIX
) ) != 0 ) {
176 /* upgrade the security descriptor */
178 status
= unmarshall_sec_desc_buf(ctx
, data
.dptr
, data
.dsize
, &sd_orig
);
179 if (!NT_STATUS_IS_OK(status
)) {
180 /* delete bad entries */
181 DEBUG(0,("sec_desc_upg_fn: Failed to parse original sec_desc for %si. Deleting....\n",
182 (const char *)key
.dptr
));
183 tdb_delete( tdb_printers
, key
);
192 /* is this even valid? */
198 /* update access masks */
200 for ( i
=0; i
<sec
->dacl
->num_aces
; i
++ ) {
201 switch ( sec
->dacl
->aces
[i
].access_mask
) {
202 case (GENERIC_READ_ACCESS
| GENERIC_WRITE_ACCESS
| GENERIC_EXECUTE_ACCESS
):
203 sec
->dacl
->aces
[i
].access_mask
= PRINTER_ACE_PRINT
;
206 case GENERIC_ALL_ACCESS
:
207 sec
->dacl
->aces
[i
].access_mask
= PRINTER_ACE_FULL_CONTROL
;
210 case READ_CONTROL_ACCESS
:
211 sec
->dacl
->aces
[i
].access_mask
= PRINTER_ACE_MANAGE_DOCUMENTS
;
213 default: /* no change */
218 /* create a new struct security_descriptor with the appropriate owner and group SIDs */
220 new_sec
= make_sec_desc( ctx
, SD_REVISION
, SEC_DESC_SELF_RELATIVE
,
221 &global_sid_Builtin_Administrators
,
222 &global_sid_Builtin_Administrators
,
223 NULL
, NULL
, &size_new_sec
);
227 sd_new
= make_sec_desc_buf( ctx
, size_new_sec
, new_sec
);
232 if ( !(sd_store
= sec_desc_merge_buf( ctx
, sd_new
, sd_orig
)) ) {
233 DEBUG(0,("sec_desc_upg_fn: Failed to update sec_desc for %s\n", key
.dptr
));
239 sd_size
= ndr_size_security_descriptor(sd_store
->sd
, 0)
240 + sizeof(struct sec_desc_buf
);
242 status
= marshall_sec_desc_buf(ctx
, sd_store
, &data
.dptr
, &data
.dsize
);
243 if (!NT_STATUS_IS_OK(status
)) {
244 DEBUG(0,("sec_desc_upg_fn: Failed to parse new sec_desc for %s\n", key
.dptr
));
248 result
= tdb_store( tdb_printers
, key
, data
, TDB_REPLACE
);
250 /* 0 to continue and non-zero to stop traversal */
252 return (result
== -1);
255 /*******************************************************************
256 Upgrade the tdb files to version 4
257 *******************************************************************/
259 static bool upgrade_to_version_4(void)
264 DEBUG(0,("upgrade_to_version_4: upgrading printer security descriptors\n"));
266 if ( !(ctx
= talloc_init( "upgrade_to_version_4" )) )
269 result
= tdb_traverse( tdb_printers
, sec_desc_upg_fn
, ctx
);
271 talloc_destroy( ctx
);
273 return ( result
!= -1 );
276 /*******************************************************************
277 Fix an issue with security descriptors. Printer sec_desc must
278 use more than the generic bits that were previously used
279 in <= 3.0.14a. They must also have a owner and group SID assigned.
280 Otherwise, any printers than have been migrated to a Windows
281 host using printmig.exe will not be accessible.
282 *******************************************************************/
284 static int normalize_printers_fn( TDB_CONTEXT
*the_tdb
, TDB_DATA key
,
285 TDB_DATA data
, void *state
)
287 TALLOC_CTX
*ctx
= talloc_tos();
290 if (!data
.dptr
|| data
.dsize
== 0)
293 /* upgrade printer records and security descriptors */
295 if ( strncmp((const char *) key
.dptr
, PRINTERS_PREFIX
, strlen(PRINTERS_PREFIX
) ) == 0 ) {
296 new_key
= make_printer_tdbkey(ctx
, (const char *)key
.dptr
+strlen(PRINTERS_PREFIX
) );
298 else if ( strncmp((const char *) key
.dptr
, SECDESC_PREFIX
, strlen(SECDESC_PREFIX
) ) == 0 ) {
299 new_key
= make_printers_secdesc_tdbkey(ctx
, (const char *)key
.dptr
+strlen(SECDESC_PREFIX
) );
302 /* ignore this record */
306 /* delete the original record and store under the normalized key */
308 if ( tdb_delete( the_tdb
, key
) != 0 ) {
309 DEBUG(0,("normalize_printers_fn: tdb_delete for [%s] failed!\n",
314 if ( tdb_store( the_tdb
, new_key
, data
, TDB_REPLACE
) != 0 ) {
315 DEBUG(0,("normalize_printers_fn: failed to store new record for [%s]!\n",
323 /*******************************************************************
324 Upgrade the tdb files to version 5
325 *******************************************************************/
327 static bool upgrade_to_version_5(void)
332 DEBUG(0,("upgrade_to_version_5: normalizing printer keys\n"));
334 if ( !(ctx
= talloc_init( "upgrade_to_version_5" )) )
337 result
= tdb_traverse( tdb_printers
, normalize_printers_fn
, NULL
);
339 talloc_destroy( ctx
);
341 return ( result
!= -1 );
344 bool nt_printing_tdb_upgrade(void)
346 const char *drivers_path
= state_path("ntdrivers.tdb");
347 const char *printers_path
= state_path("ntprinters.tdb");
348 const char *forms_path
= state_path("ntforms.tdb");
349 bool drivers_exists
= file_exist(drivers_path
);
350 bool printers_exists
= file_exist(printers_path
);
351 bool forms_exists
= file_exist(forms_path
);
352 const char *vstring
= "INFO/version";
355 if (!drivers_exists
&& !printers_exists
&& !forms_exists
) {
359 tdb_drivers
= tdb_open_log(drivers_path
,
364 if (tdb_drivers
== NULL
) {
365 DEBUG(0,("nt_printing_init: Failed to open nt drivers "
366 "database %s (%s)\n",
367 drivers_path
, strerror(errno
)));
371 tdb_printers
= tdb_open_log(printers_path
,
376 if (tdb_printers
== NULL
) {
377 DEBUG(0,("nt_printing_init: Failed to open nt printers "
378 "database %s (%s)\n",
379 printers_path
, strerror(errno
)));
383 tdb_forms
= tdb_open_log(forms_path
,
388 if (tdb_forms
== NULL
) {
389 DEBUG(0,("nt_printing_init: Failed to open nt forms "
390 "database %s (%s)\n",
391 forms_path
, strerror(errno
)));
396 vers_id
= tdb_fetch_int32(tdb_drivers
, vstring
);
398 DEBUG(10, ("Fresh database\n"));
399 tdb_store_int32(tdb_drivers
, vstring
, NTDRIVERS_DATABASE_VERSION_5
);
400 vers_id
= NTDRIVERS_DATABASE_VERSION_5
;
403 if (vers_id
!= NTDRIVERS_DATABASE_VERSION_5
) {
404 if ((vers_id
== NTDRIVERS_DATABASE_VERSION_1
) ||
405 (IREV(vers_id
) == NTDRIVERS_DATABASE_VERSION_1
)) {
406 if (!upgrade_to_version_3()) {
410 tdb_store_int32(tdb_drivers
, vstring
, NTDRIVERS_DATABASE_VERSION_3
);
411 vers_id
= NTDRIVERS_DATABASE_VERSION_3
;
414 if ((vers_id
== NTDRIVERS_DATABASE_VERSION_2
) ||
415 (IREV(vers_id
) == NTDRIVERS_DATABASE_VERSION_2
)) {
417 * Written on a bigendian machine with old fetch_int
418 * code. Save as le. The only upgrade between V2 and V3
419 * is to save the version in little-endian.
421 tdb_store_int32(tdb_drivers
, vstring
, NTDRIVERS_DATABASE_VERSION_3
);
422 vers_id
= NTDRIVERS_DATABASE_VERSION_3
;
425 if (vers_id
== NTDRIVERS_DATABASE_VERSION_3
) {
426 if (!upgrade_to_version_4()) {
429 tdb_store_int32(tdb_drivers
, vstring
, NTDRIVERS_DATABASE_VERSION_4
);
430 vers_id
= NTDRIVERS_DATABASE_VERSION_4
;
433 if (vers_id
== NTDRIVERS_DATABASE_VERSION_4
) {
434 if (!upgrade_to_version_5()) {
437 tdb_store_int32(tdb_drivers
, vstring
, NTDRIVERS_DATABASE_VERSION_5
);
438 vers_id
= NTDRIVERS_DATABASE_VERSION_5
;
441 if (vers_id
!= NTDRIVERS_DATABASE_VERSION_5
) {
442 DEBUG(0,("nt_printing_init: Unknown printer database version [%d]\n", vers_id
));
448 tdb_close(tdb_drivers
);
453 tdb_close(tdb_printers
);
458 tdb_close(tdb_forms
);