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python/samba: Another object.next() to next(object) py2/py3 converstion
[Samba.git] / source3 / printing / nt_printing.c
blob633e350ff35f3eb74853a6b2f77d9461e7df7d81
1 /*
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 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "printing/nt_printing_tdb.h"
24 #include "../librpc/gen_ndr/ndr_spoolss.h"
25 #include "rpc_server/spoolss/srv_spoolss_util.h"
26 #include "nt_printing.h"
27 #include "secrets.h"
28 #include "../librpc/gen_ndr/netlogon.h"
29 #include "../libcli/security/security.h"
30 #include "passdb/machine_sid.h"
31 #include "smbd/smbd.h"
32 #include "smbd/globals.h"
33 #include "auth.h"
34 #include "messages.h"
35 #include "rpc_server/spoolss/srv_spoolss_nt.h"
36 #include "rpc_client/cli_winreg_spoolss.h"
37
38 /* Map generic permissions to printer object specific permissions */
39
40 const struct generic_mapping printer_generic_mapping = {
41 PRINTER_READ,
42 PRINTER_WRITE,
43 PRINTER_EXECUTE,
44 PRINTER_ALL_ACCESS
45 };
46
47 /* Map generic permissions to print server object specific permissions */
48
49 const struct generic_mapping printserver_generic_mapping = {
50 SERVER_READ,
51 SERVER_WRITE,
52 SERVER_EXECUTE,
53 SERVER_ALL_ACCESS
54 };
55
56 /* Map generic permissions to job object specific permissions */
57
58 const struct generic_mapping job_generic_mapping = {
59 JOB_READ,
60 JOB_WRITE,
61 JOB_EXECUTE,
62 JOB_ALL_ACCESS
63 };
64
65 static const struct print_architecture_table_node archi_table[]= {
66
67 {"Windows 4.0", SPL_ARCH_WIN40, 0 },
68 {"Windows NT x86", SPL_ARCH_W32X86, 2 },
69 {"Windows NT R4000", SPL_ARCH_W32MIPS, 2 },
70 {"Windows NT Alpha_AXP", SPL_ARCH_W32ALPHA, 2 },
71 {"Windows NT PowerPC", SPL_ARCH_W32PPC, 2 },
72 {"Windows IA64", SPL_ARCH_IA64, 3 },
73 {"Windows x64", SPL_ARCH_X64, 3 },
74 {NULL, "", -1 }
75 };
76
77 static bool print_driver_directories_init(void)
78 {
79 int service, i;
80 char *driver_path;
81 bool ok;
82 TALLOC_CTX *mem_ctx = talloc_stackframe();
83 const char *dir_list[] = {
84 "W32X86/PCC",
85 "x64/PCC",
86 "color"
87 };
88
89 service = lp_servicenumber("print$");
90 if (service < 0) {
91 /* We don't have a print$ share */
92 DEBUG(5, ("No print$ share has been configured.\n"));
93 talloc_free(mem_ctx);
94 return true;
95 }
96
97 driver_path = lp_path(mem_ctx, service);
98 if (driver_path == NULL) {
99 talloc_free(mem_ctx);
100 return false;
101 }
102
103 ok = directory_create_or_exist(driver_path, 0755);
104 if (!ok) {
105 DEBUG(1, ("Failed to create printer driver directory %s\n",
106 driver_path));
107 talloc_free(mem_ctx);
108 return false;
109 }
110
111 for (i = 0; archi_table[i].long_archi != NULL; i++) {
112 const char *arch_path;
113
114 arch_path = talloc_asprintf(mem_ctx,
115 "%s/%s",
116 driver_path,
117 archi_table[i].short_archi);
118 if (arch_path == NULL) {
119 talloc_free(mem_ctx);
120 return false;
121 }
122
123 ok = directory_create_or_exist(arch_path, 0755);
124 if (!ok) {
125 DEBUG(1, ("Failed to create printer driver "
126 "architecture directory %s\n",
127 arch_path));
128 talloc_free(mem_ctx);
129 return false;
130 }
131 }
132
133 for (i = 0; i < ARRAY_SIZE(dir_list); i++) {
134 const char *path;
135
136 path = talloc_asprintf(mem_ctx,
137 "%s/%s",
138 driver_path,
139 dir_list[i]);
140 if (path == NULL) {
141 talloc_free(mem_ctx);
142 return false;
143 }
144
145 ok = directory_create_or_exist(path, 0755);
146 if (!ok) {
147 DEBUG(1, ("Failed to create printer driver "
148 "architecture directory %s\n",
149 path));
150 talloc_free(mem_ctx);
151 return false;
152 }
153 }
154
155 driver_path = state_path("DriverStore");
156 if (driver_path == NULL) {
157 talloc_free(mem_ctx);
158 return false;
159 }
160
161 ok = directory_create_or_exist(driver_path, 0755);
162 if (!ok) {
163 DEBUG(1,("failed to create path %s\n", driver_path));
164 talloc_free(mem_ctx);
165 return false;
166 }
167
168 driver_path = state_path("DriverStore/FileRepository");
169 if (driver_path == NULL) {
170 talloc_free(mem_ctx);
171 return false;
172 }
173
174 ok = directory_create_or_exist(driver_path, 0755);
175 if (!ok) {
176 DEBUG(1,("failed to create path %s\n", driver_path));
177 talloc_free(mem_ctx);
178 return false;
179 }
180
181 driver_path = state_path("DriverStore/Temp");
182 if (driver_path == NULL) {
183 talloc_free(mem_ctx);
184 return false;
185 }
186
187 ok = directory_create_or_exist(driver_path, 0755);
188 if (!ok) {
189 DEBUG(1,("failed to create path %s\n", driver_path));
190 talloc_free(mem_ctx);
191 return false;
192 }
193
194 talloc_free(mem_ctx);
195 return true;
196 }
197
198 /****************************************************************************
199 Forward a MSG_PRINTER_DRVUPGRADE message from another smbd to the
200 background lpq updater.
201 ****************************************************************************/
202
203 static void forward_drv_upgrade_printer_msg(struct messaging_context *msg,
204 void *private_data,
205 uint32_t msg_type,
206 struct server_id server_id,
207 DATA_BLOB *data)
208 {
209 extern pid_t background_lpq_updater_pid;
210
211 if (background_lpq_updater_pid == -1) {
212 DEBUG(3,("no background lpq queue updater\n"));
213 return;
214 }
215
216 messaging_send_buf(msg,
217 pid_to_procid(background_lpq_updater_pid),
218 MSG_PRINTER_DRVUPGRADE,
219 data->data,
220 data->length);
221 }
222
223 /****************************************************************************
224 Open the NT printing tdbs. Done once before fork().
225 ****************************************************************************/
226
227 bool nt_printing_init(struct messaging_context *msg_ctx)
228 {
229 WERROR win_rc;
230
231 if (!print_driver_directories_init()) {
232 return false;
233 }
234
235 if (!nt_printing_tdb_upgrade()) {
236 return false;
237 }
238
239 /*
240 * register callback to handle updating printers as new
241 * drivers are installed. Forwards to background lpq updater.
242 */
243 messaging_register(msg_ctx, NULL, MSG_PRINTER_DRVUPGRADE,
244 forward_drv_upgrade_printer_msg);
245
246 if ( lp_security() == SEC_ADS ) {
247 win_rc = check_published_printers(msg_ctx);
248 if (!W_ERROR_IS_OK(win_rc))
249 DEBUG(0, ("nt_printing_init: error checking published printers: %s\n", win_errstr(win_rc)));
250 }
251
252 return true;
253 }
254
255 /*******************************************************************
256 Function to allow filename parsing "the old way".
257 ********************************************************************/
258
259 static NTSTATUS driver_unix_convert(connection_struct *conn,
260 const char *old_name,
261 struct smb_filename **smb_fname)
262 {
263 NTSTATUS status;
264 TALLOC_CTX *ctx = talloc_tos();
265 char *name = talloc_strdup(ctx, old_name);
266
267 if (!name) {
268 return NT_STATUS_NO_MEMORY;
269 }
270 unix_format(name);
271 name = unix_clean_name(ctx, name);
272 if (!name) {
273 return NT_STATUS_NO_MEMORY;
274 }
275 trim_string(name,"/","/");
276
277 status = unix_convert(ctx, conn, name, smb_fname, 0);
278 if (!NT_STATUS_IS_OK(status)) {
279 return NT_STATUS_NO_MEMORY;
280 }
281
282 return NT_STATUS_OK;
283 }
284
285 /****************************************************************************
286 Function to do the mapping between the long architecture name and
287 the short one.
288 ****************************************************************************/
289
290 const char *get_short_archi(const char *long_archi)
291 {
292 int i=-1;
293
294 DEBUG(107,("Getting architecture dependent directory\n"));
295 do {
296 i++;
297 } while ( (archi_table[i].long_archi!=NULL ) &&
298 strcasecmp_m(long_archi, archi_table[i].long_archi) );
299
300 if (archi_table[i].long_archi==NULL) {
301 DEBUGADD(10,("Unknown architecture [%s] !\n", long_archi));
302 return NULL;
303 }
304
305 /* this might be client code - but shouldn't this be an fstrcpy etc? */
306
307 DEBUGADD(108,("index: [%d]\n", i));
308 DEBUGADD(108,("long architecture: [%s]\n", archi_table[i].long_archi));
309 DEBUGADD(108,("short architecture: [%s]\n", archi_table[i].short_archi));
310
311 return archi_table[i].short_archi;
312 }
313
314 /****************************************************************************
315 Read data from fsp on the vfs.
316 ****************************************************************************/
317
318 static ssize_t printing_pread_data(files_struct *fsp,
319 char *buf,
320 off_t *poff,
321 size_t byte_count)
322 {
323 size_t total=0;
324 off_t in_pos = *poff;
325
326 /* Don't allow integer wrap on read. */
327 if (in_pos + byte_count < in_pos) {
328 return -1;
329 }
330
331 while (total < byte_count) {
332 ssize_t ret = read_file(fsp,
333 buf + total,
334 in_pos,
335 byte_count - total);
336
337 if (ret == 0) {
338 *poff = in_pos;
339 return total;
340 }
341 if (ret == -1) {
342 if (errno == EINTR) {
343 continue;
344 } else {
345 return -1;
346 }
347 }
348 in_pos += ret;
349 total += ret;
350 }
351 *poff = in_pos;
352 return (ssize_t)total;
353 }
354
355 /****************************************************************************
356 Detect the major and minor version of a PE file.
357 Returns:
358
359 1 if file is a PE file and we got version numbers,
360 0 if this file is a PE file and we couldn't get the version numbers,
361 -1 on error.
362
363 NB. buf is passed into and freed inside this function. This is a
364 bad API design, but fixing this is a task for another day.
365 ****************************************************************************/
366
367 static int handle_pe_file(files_struct *fsp,
368 off_t in_pos,
369 char *fname,
370 char *buf,
371 uint32_t *major,
372 uint32_t *minor)
373 {
374 unsigned int i;
375 unsigned int num_sections;
376 unsigned int section_table_bytes;
377 ssize_t byte_count;
378 off_t rel_pos;
379 int ret = -1;
380
381 /* Just skip over optional header to get to section table */
382 rel_pos = SVAL(buf,PE_HEADER_OPTIONAL_HEADER_SIZE)-
383 (NE_HEADER_SIZE-PE_HEADER_SIZE);
384
385 if (in_pos + rel_pos < in_pos) {
386 /* Integer wrap. */
387 goto out;
388 }
389 in_pos = rel_pos + in_pos;
390
391 /* get the section table */
392 num_sections = SVAL(buf,PE_HEADER_NUMBER_OF_SECTIONS);
393
394 if (num_sections >= (UINT_MAX / PE_HEADER_SECT_HEADER_SIZE)) {
395 /* Integer wrap. */
396 goto out;
397 }
398
399 section_table_bytes = num_sections * PE_HEADER_SECT_HEADER_SIZE;
400 if (section_table_bytes == 0) {
401 goto out;
402 }
403
404 SAFE_FREE(buf);
405 buf = (char *)SMB_MALLOC(section_table_bytes);
406 if (buf == NULL) {
407 DBG_ERR("PE file [%s] section table malloc "
408 "failed bytes = %d\n",
409 fname,
410 section_table_bytes);
411 goto out;
412 }
413
414 byte_count = printing_pread_data(fsp, buf, &in_pos, section_table_bytes);
415 if (byte_count < section_table_bytes) {
416 DBG_NOTICE("PE file [%s] Section header too short, "
417 "bytes read = %lu\n",
418 fname,
419 (unsigned long)byte_count);
420 goto out;
421 }
422
423 /*
424 * Iterate the section table looking for
425 * the resource section ".rsrc"
426 */
427 for (i = 0; i < num_sections; i++) {
428 int sec_offset = i * PE_HEADER_SECT_HEADER_SIZE;
429
430 if (strcmp(".rsrc",
431 &buf[sec_offset+ PE_HEADER_SECT_NAME_OFFSET]) == 0) {
432 unsigned int section_pos = IVAL(buf,
433 sec_offset+
434 PE_HEADER_SECT_PTR_DATA_OFFSET);
435 unsigned int section_bytes = IVAL(buf,
436 sec_offset+
437 PE_HEADER_SECT_SIZE_DATA_OFFSET);
438
439 if (section_bytes == 0) {
440 goto out;
441 }
442
443 SAFE_FREE(buf);
444 buf=(char *)SMB_MALLOC(section_bytes);
445 if (buf == NULL) {
446 DBG_ERR("PE file [%s] version malloc "
447 "failed bytes = %d\n",
448 fname,
449 section_bytes);
450 goto out;
451 }
452
453 /*
454 * Read from the start of the .rsrc
455 * section info
456 */
457 in_pos = section_pos;
458
459 byte_count = printing_pread_data(fsp,
460 buf,
461 &in_pos,
462 section_bytes);
463 if (byte_count < section_bytes) {
464 DBG_NOTICE("PE file "
465 "[%s] .rsrc section too short, "
466 "bytes read = %lu\n",
467 fname,
468 (unsigned long)byte_count);
469 goto out;
470 }
471
472 if (section_bytes < VS_VERSION_INFO_UNICODE_SIZE) {
473 goto out;
474 }
475
476 for (i=0;
477 i< section_bytes - VS_VERSION_INFO_UNICODE_SIZE;
478 i++) {
479 /*
480 * Scan for 1st 3 unicoded bytes
481 * followed by word aligned magic
482 * value.
483 */
484 int mpos;
485 bool magic_match = false;
486
487 if (buf[i] == 'V' &&
488 buf[i+1] == '\0' &&
489 buf[i+2] == 'S') {
490 magic_match = true;
491 }
492
493 if (magic_match == false) {
494 continue;
495 }
496
497 /* Align to next long address */
498 mpos = (i + sizeof(VS_SIGNATURE)*2 +
499 3) & 0xfffffffc;
500
501 if (IVAL(buf,mpos) == VS_MAGIC_VALUE) {
502 *major = IVAL(buf,
503 mpos+ VS_MAJOR_OFFSET);
504 *minor = IVAL(buf,
505 mpos+ VS_MINOR_OFFSET);
506
507 DBG_INFO("PE file [%s] Version = "
508 "%08x:%08x (%d.%d.%d.%d)\n",
509 fname,
510 *major,
511 *minor,
512 (*major>>16)&0xffff,
513 *major&0xffff,
514 (*minor>>16)&0xffff,
515 *minor&0xffff);
516 ret = 1;
517 goto out;
518 }
519 }
520 }
521 }
522
523 /* Version info not found, fall back to origin date/time */
524 DBG_DEBUG("PE file [%s] has no version info\n", fname);
525 ret = 0;
526
527 out:
528
529 SAFE_FREE(buf);
530 return ret;
531 }
532
533 /****************************************************************************
534 Detect the major and minor version of an NE file.
535 Returns:
536
537 1 if file is an NE file and we got version numbers,
538 0 if this file is an NE file and we couldn't get the version numbers,
539 -1 on error.
540
541 NB. buf is passed into and freed inside this function. This is a
542 bad API design, but fixing this is a task for another day.
543 ****************************************************************************/
544
545 static int handle_ne_file(files_struct *fsp,
546 off_t in_pos,
547 char *fname,
548 char *buf,
549 uint32_t *major,
550 uint32_t *minor)
551 {
552 unsigned int i;
553 ssize_t byte_count;
554 int ret = -1;
555
556 if (CVAL(buf,NE_HEADER_TARGET_OS_OFFSET) != NE_HEADER_TARGOS_WIN ) {
557 DBG_NOTICE("NE file [%s] wrong target OS = 0x%x\n",
558 fname,
559 CVAL(buf,NE_HEADER_TARGET_OS_OFFSET));
560 /*
561 * At this point, we assume the file is in error.
562 * It still could be something else besides a NE file,
563 * but it unlikely at this point.
564 */
565 goto out;
566 }
567
568 /* Allocate a bit more space to speed up things */
569 SAFE_FREE(buf);
570 buf=(char *)SMB_MALLOC(VS_NE_BUF_SIZE);
571 if (buf == NULL) {
572 DBG_ERR("NE file [%s] malloc failed bytes = %d\n",
573 fname,
574 PE_HEADER_SIZE);
575 goto out;
576 }
577
578 /*
579 * This is a HACK! I got tired of trying to sort through the
580 * messy 'NE' file format. If anyone wants to clean this up
581 * please have at it, but this works. 'NE' files will
582 * eventually fade away. JRR
583 */
584 byte_count = printing_pread_data(fsp, buf, &in_pos, VS_NE_BUF_SIZE);
585 while (byte_count > 0) {
586 /*
587 * Cover case that should not occur in a well
588 * formed 'NE' .dll file
589 */
590 if (byte_count-VS_VERSION_INFO_SIZE <= 0) {
591 break;
592 }
593
594 for(i=0; i<byte_count; i++) {
595 /*
596 * Fast skip past data that can't
597 * possibly match
598 */
599 if (buf[i] != 'V') {
600 byte_count = printing_pread_data(fsp,
601 buf,
602 &in_pos,
603 VS_NE_BUF_SIZE);
604 continue;
605 }
606
607 /*
608 * Potential match data crosses buf boundry,
609 * move it to beginning of buf, and fill the
610 * buf with as much as it will hold.
611 */
612 if (i>byte_count-VS_VERSION_INFO_SIZE) {
613 ssize_t amount_read;
614 ssize_t amount_unused = byte_count-i;
615
616 memmove(buf, &buf[i], amount_unused);
617 amount_read = printing_pread_data(fsp,
618 &buf[amount_unused],
619 &in_pos,
620 VS_NE_BUF_SIZE- amount_unused);
621 if (amount_read < 0) {
622 DBG_ERR("NE file [%s] Read "
623 "error, errno=%d\n",
624 fname,
625 errno);
626 goto out;
627 }
628
629 if (amount_read + amount_unused <
630 amount_read) {
631 /* Check for integer wrap. */
632 break;
633 }
634
635 byte_count = amount_read +
636 amount_unused;
637 if (byte_count < VS_VERSION_INFO_SIZE) {
638 break;
639 }
640
641 i = 0;
642 }
643
644 /*
645 * Check that the full signature string and
646 * the magic number that follows exist (not
647 * a perfect solution, but the chances that this
648 * occurs in code is, well, remote. Yes I know
649 * I'm comparing the 'V' twice, as it is
650 * simpler to read the code.
651 */
652 if (strcmp(&buf[i], VS_SIGNATURE) == 0) {
653 /*
654 * Compute skip alignment to next
655 * long address.
656 */
657 off_t cpos = in_pos;
658 int skip = -(cpos - (byte_count - i) +
659 sizeof(VS_SIGNATURE)) & 3;
660 if (IVAL(buf,
661 i+sizeof(VS_SIGNATURE)+skip)
662 != 0xfeef04bd) {
663 byte_count = printing_pread_data(fsp,
664 buf,
665 &in_pos,
666 VS_NE_BUF_SIZE);
667 continue;
668 }
669
670 *major = IVAL(buf,
671 i+sizeof(VS_SIGNATURE)+
672 skip+VS_MAJOR_OFFSET);
673 *minor = IVAL(buf,
674 i+sizeof(VS_SIGNATURE)+
675 skip+VS_MINOR_OFFSET);
676 DBG_INFO("NE file [%s] Version "
677 "= %08x:%08x (%d.%d.%d.%d)\n",
678 fname,
679 *major,
680 *minor,
681 (*major>>16)&0xffff,
682 *major&0xffff,
683 (*minor>>16)&0xffff,
684 *minor&0xffff);
685 ret = 1;
686 goto out;
687 }
688 }
689 }
690
691 /* Version info not found, fall back to origin date/time */
692 DBG_ERR("NE file [%s] Version info not found\n", fname);
693 ret = 0;
694
695 out:
696
697 SAFE_FREE(buf);
698 return ret;
699 }
700
701 /****************************************************************************
702 Version information in Microsoft files is held in a VS_VERSION_INFO structure.
703 There are two case to be covered here: PE (Portable Executable) and NE (New
704 Executable) files. Both files support the same INFO structure, but PE files
705 store the signature in unicode, and NE files store it as !unicode.
706 returns -1 on error, 1 on version info found, and 0 on no version info found.
707 ****************************************************************************/
708
709 static int get_file_version(files_struct *fsp,
710 char *fname,
711 uint32_t *major,
712 uint32_t *minor)
713 {
714 char *buf = NULL;
715 ssize_t byte_count;
716 off_t in_pos = fsp->fh->pos;
717
718 buf=(char *)SMB_MALLOC(DOS_HEADER_SIZE);
719 if (buf == NULL) {
720 DBG_ERR("PE file [%s] DOS Header malloc failed bytes = %d\n",
721 fname,
722 DOS_HEADER_SIZE);
723 goto error_exit;
724 }
725
726 byte_count = printing_pread_data(fsp, buf, &in_pos, DOS_HEADER_SIZE);
727 if (byte_count < DOS_HEADER_SIZE) {
728 DBG_NOTICE("File [%s] DOS header too short, bytes read = %lu\n",
729 fname,
730 (unsigned long)byte_count);
731 goto no_version_info;
732 }
733
734 /* Is this really a DOS header? */
735 if (SVAL(buf,DOS_HEADER_MAGIC_OFFSET) != DOS_HEADER_MAGIC) {
736 DBG_INFO("File [%s] bad DOS magic = 0x%x\n",
737 fname,
738 SVAL(buf,DOS_HEADER_MAGIC_OFFSET));
739 goto no_version_info;
740 }
741
742 /*
743 * Skip OEM header (if any) and the
744 * DOS stub to start of Windows header.
745 */
746 in_pos = SVAL(buf,DOS_HEADER_LFANEW_OFFSET);
747
748 /* Note: DOS_HEADER_SIZE and NE_HEADER_SIZE are incidentally same */
749 byte_count = printing_pread_data(fsp, buf, &in_pos, NE_HEADER_SIZE);
750 if (byte_count < NE_HEADER_SIZE) {
751 DBG_NOTICE("File [%s] Windows header too short, "
752 "bytes read = %lu\n",
753 fname,
754 (unsigned long)byte_count);
755 /*
756 * Assume this isn't an error...
757 * the file just looks sort of like a PE/NE file
758 */
759 goto no_version_info;
760 }
761
762 /*
763 * The header may be a PE (Portable Executable)
764 * or an NE (New Executable).
765 */
766 if (IVAL(buf,PE_HEADER_SIGNATURE_OFFSET) == PE_HEADER_SIGNATURE) {
767 return handle_pe_file(fsp,
768 in_pos,
769 fname,
770 buf,
771 major,
772 minor);
773 } else if (SVAL(buf,NE_HEADER_SIGNATURE_OFFSET) ==
774 NE_HEADER_SIGNATURE) {
775 return handle_ne_file(fsp,
776 in_pos,
777 fname,
778 buf,
779 major,
780 minor);
781 } else {
782 /*
783 * Assume this isn't an error... the file just
784 * looks sort of like a PE/NE file.
785 */
786 DBG_NOTICE("File [%s] unknown file format, signature = 0x%x\n",
787 fname,
788 IVAL(buf,PE_HEADER_SIGNATURE_OFFSET));
789 /* Fallthrough into no_version_info: */
790 }
791
792 no_version_info:
793 SAFE_FREE(buf);
794 return 0;
795
796 error_exit:
797 SAFE_FREE(buf);
798 return -1;
799 }
800
801 /****************************************************************************
802 Drivers for Microsoft systems contain multiple files. Often, multiple drivers
803 share one or more files. During the MS installation process files are checked
804 to insure that only a newer version of a shared file is installed over an
805 older version. There are several possibilities for this comparison. If there
806 is no previous version, the new one is newer (obviously). If either file is
807 missing the version info structure, compare the creation date (on Unix use
808 the modification date). Otherwise chose the numerically larger version number.
809 ****************************************************************************/
810
811 static int file_version_is_newer(connection_struct *conn, fstring new_file, fstring old_file)
812 {
813 bool use_version = true;
814
815 uint32_t new_major;
816 uint32_t new_minor;
817 time_t new_create_time;
818
819 uint32_t old_major;
820 uint32_t old_minor;
821 time_t old_create_time;
822
823 struct smb_filename *smb_fname = NULL;
824 files_struct *fsp = NULL;
825 SMB_STRUCT_STAT st;
826
827 NTSTATUS status;
828 int ret;
829
830 SET_STAT_INVALID(st);
831 new_create_time = (time_t)0;
832 old_create_time = (time_t)0;
833
834 /* Get file version info (if available) for previous file (if it exists) */
835 status = driver_unix_convert(conn, old_file, &smb_fname);
836 if (!NT_STATUS_IS_OK(status)) {
837 goto error_exit;
838 }
839
840 status = SMB_VFS_CREATE_FILE(
841 conn, /* conn */
842 NULL, /* req */
843 0, /* root_dir_fid */
844 smb_fname, /* fname */
845 FILE_GENERIC_READ, /* access_mask */
846 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
847 FILE_OPEN, /* create_disposition*/
848 0, /* create_options */
849 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
850 INTERNAL_OPEN_ONLY, /* oplock_request */
851 NULL, /* lease */
852 0, /* allocation_size */
853 0, /* private_flags */
854 NULL, /* sd */
855 NULL, /* ea_list */
856 &fsp, /* result */
857 NULL, /* pinfo */
858 NULL, NULL); /* create context */
859
860 if (!NT_STATUS_IS_OK(status)) {
861 /* Old file not found, so by definition new file is in fact newer */
862 DEBUG(10,("file_version_is_newer: Can't open old file [%s], "
863 "errno = %d\n", smb_fname_str_dbg(smb_fname),
864 errno));
865 ret = 1;
866 goto done;
867
868 } else {
869 ret = get_file_version(fsp, old_file, &old_major, &old_minor);
870 if (ret == -1) {
871 goto error_exit;
872 }
873
874 if (!ret) {
875 DEBUG(6,("file_version_is_newer: Version info not found [%s], use mod time\n",
876 old_file));
877 use_version = false;
878 if (SMB_VFS_FSTAT(fsp, &st) == -1) {
879 goto error_exit;
880 }
881 old_create_time = convert_timespec_to_time_t(st.st_ex_mtime);
882 DEBUGADD(6,("file_version_is_newer: mod time = %ld sec\n",
883 (long)old_create_time));
884 }
885 }
886 close_file(NULL, fsp, NORMAL_CLOSE);
887 fsp = NULL;
888
889 /* Get file version info (if available) for new file */
890 status = driver_unix_convert(conn, new_file, &smb_fname);
891 if (!NT_STATUS_IS_OK(status)) {
892 goto error_exit;
893 }
894
895 status = SMB_VFS_CREATE_FILE(
896 conn, /* conn */
897 NULL, /* req */
898 0, /* root_dir_fid */
899 smb_fname, /* fname */
900 FILE_GENERIC_READ, /* access_mask */
901 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
902 FILE_OPEN, /* create_disposition*/
903 0, /* create_options */
904 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
905 INTERNAL_OPEN_ONLY, /* oplock_request */
906 NULL, /* lease */
907 0, /* allocation_size */
908 0, /* private_flags */
909 NULL, /* sd */
910 NULL, /* ea_list */
911 &fsp, /* result */
912 NULL, /* pinfo */
913 NULL, NULL); /* create context */
914
915 if (!NT_STATUS_IS_OK(status)) {
916 /* New file not found, this shouldn't occur if the caller did its job */
917 DEBUG(3,("file_version_is_newer: Can't open new file [%s], "
918 "errno = %d\n", smb_fname_str_dbg(smb_fname), errno));
919 goto error_exit;
920
921 } else {
922 ret = get_file_version(fsp, new_file, &new_major, &new_minor);
923 if (ret == -1) {
924 goto error_exit;
925 }
926
927 if (!ret) {
928 DEBUG(6,("file_version_is_newer: Version info not found [%s], use mod time\n",
929 new_file));
930 use_version = false;
931 if (SMB_VFS_FSTAT(fsp, &st) == -1) {
932 goto error_exit;
933 }
934 new_create_time = convert_timespec_to_time_t(st.st_ex_mtime);
935 DEBUGADD(6,("file_version_is_newer: mod time = %ld sec\n",
936 (long)new_create_time));
937 }
938 }
939 close_file(NULL, fsp, NORMAL_CLOSE);
940 fsp = NULL;
941
942 if (use_version && (new_major != old_major || new_minor != old_minor)) {
943 /* Compare versions and choose the larger version number */
944 if (new_major > old_major ||
945 (new_major == old_major && new_minor > old_minor)) {
946
947 DEBUG(6,("file_version_is_newer: Replacing [%s] with [%s]\n", old_file, new_file));
948 ret = 1;
949 goto done;
950 }
951 else {
952 DEBUG(6,("file_version_is_newer: Leaving [%s] unchanged\n", old_file));
953 ret = 0;
954 goto done;
955 }
956
957 } else {
958 /* Compare modification time/dates and choose the newest time/date */
959 if (new_create_time > old_create_time) {
960 DEBUG(6,("file_version_is_newer: Replacing [%s] with [%s]\n", old_file, new_file));
961 ret = 1;
962 goto done;
963 }
964 else {
965 DEBUG(6,("file_version_is_newer: Leaving [%s] unchanged\n", old_file));
966 ret = 0;
967 goto done;
968 }
969 }
970
971 error_exit:
972 if(fsp)
973 close_file(NULL, fsp, NORMAL_CLOSE);
974 ret = -1;
975 done:
976 TALLOC_FREE(smb_fname);
977 return ret;
978 }
979
980 /****************************************************************************
981 Determine the correct cVersion associated with an architecture and driver
982 ****************************************************************************/
983 static uint32_t get_correct_cversion(const struct auth_session_info *session_info,
984 const char *architecture,
985 const char *driverpath_in,
986 const char *driver_directory,
987 WERROR *perr)
988 {
989 TALLOC_CTX *frame = talloc_stackframe();
990 int cversion = -1;
991 NTSTATUS nt_status;
992 struct smb_filename *smb_fname = NULL;
993 files_struct *fsp = NULL;
994 struct conn_struct_tos *c = NULL;
995 connection_struct *conn = NULL;
996 char *printdollar = NULL;
997 char *printdollar_path = NULL;
998 char *working_dir = NULL;
999 int printdollar_snum;
1000
1001 *perr = WERR_INVALID_PARAMETER;
1002
1003 /* If architecture is Windows 95/98/ME, the version is always 0. */
1004 if (strcmp(architecture, SPL_ARCH_WIN40) == 0) {
1005 DEBUG(10,("get_correct_cversion: Driver is Win9x, cversion = 0\n"));
1006 *perr = WERR_OK;
1007 TALLOC_FREE(frame);
1008 return 0;
1009 }
1010
1011 /* If architecture is Windows x64, the version is always 3. */
1012 if (strcmp(architecture, SPL_ARCH_X64) == 0) {
1013 DEBUG(10,("get_correct_cversion: Driver is x64, cversion = 3\n"));
1014 *perr = WERR_OK;
1015 TALLOC_FREE(frame);
1016 return 3;
1017 }
1018
1019 printdollar_snum = find_service(frame, "print$", &printdollar);
1020 if (!printdollar) {
1021 *perr = WERR_NOT_ENOUGH_MEMORY;
1022 TALLOC_FREE(frame);
1023 return -1;
1024 }
1025 if (printdollar_snum == -1) {
1026 *perr = WERR_BAD_NET_NAME;
1027 TALLOC_FREE(frame);
1028 return -1;
1029 }
1030
1031 printdollar_path = lp_path(frame, printdollar_snum);
1032 if (printdollar_path == NULL) {
1033 *perr = WERR_NOT_ENOUGH_MEMORY;
1034 TALLOC_FREE(frame);
1035 return -1;
1036 }
1037
1038 working_dir = talloc_asprintf(frame,
1039 "%s/%s",
1040 printdollar_path,
1041 architecture);
1042 /*
1043 * If the driver has been uploaded into a temorpary driver
1044 * directory, switch to the driver directory.
1045 */
1046 if (driver_directory != NULL) {
1047 working_dir = talloc_asprintf(frame, "%s/%s/%s",
1048 printdollar_path,
1049 architecture,
1050 driver_directory);
1051 }
1052
1053 nt_status = create_conn_struct_tos_cwd(server_messaging_context(),
1054 printdollar_snum,
1055 working_dir,
1056 session_info,
1057 &c);
1058 if (!NT_STATUS_IS_OK(nt_status)) {
1059 DEBUG(0,("get_correct_cversion: create_conn_struct "
1060 "returned %s\n", nt_errstr(nt_status)));
1061 *perr = ntstatus_to_werror(nt_status);
1062 TALLOC_FREE(frame);
1063 return -1;
1064 }
1065 conn = c->conn;
1066
1067 nt_status = set_conn_force_user_group(conn, printdollar_snum);
1068 if (!NT_STATUS_IS_OK(nt_status)) {
1069 DEBUG(0, ("failed set force user / group\n"));
1070 *perr = ntstatus_to_werror(nt_status);
1071 goto error_free_conn;
1072 }
1073
1074 if (!become_user_by_session(conn, session_info)) {
1075 DEBUG(0, ("failed to become user\n"));
1076 *perr = WERR_ACCESS_DENIED;
1077 goto error_free_conn;
1078 }
1079
1080 /*
1081 * We switch to the directory where the driver files are located,
1082 * so only work on the file names
1083 */
1084 nt_status = driver_unix_convert(conn, driverpath_in, &smb_fname);
1085 if (!NT_STATUS_IS_OK(nt_status)) {
1086 *perr = ntstatus_to_werror(nt_status);
1087 goto error_exit;
1088 }
1089
1090 nt_status = vfs_file_exist(conn, smb_fname);
1091 if (!NT_STATUS_IS_OK(nt_status)) {
1092 DEBUG(3,("get_correct_cversion: vfs_file_exist failed\n"));
1093 *perr = WERR_FILE_NOT_FOUND;
1094 goto error_exit;
1095 }
1096
1097 nt_status = SMB_VFS_CREATE_FILE(
1098 conn, /* conn */
1099 NULL, /* req */
1100 0, /* root_dir_fid */
1101 smb_fname, /* fname */
1102 FILE_GENERIC_READ, /* access_mask */
1103 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
1104 FILE_OPEN, /* create_disposition*/
1105 0, /* create_options */
1106 FILE_ATTRIBUTE_NORMAL, /* file_attributes */
1107 INTERNAL_OPEN_ONLY, /* oplock_request */
1108 NULL, /* lease */
1109 0, /* private_flags */
1110 0, /* allocation_size */
1111 NULL, /* sd */
1112 NULL, /* ea_list */
1113 &fsp, /* result */
1114 NULL, /* pinfo */
1115 NULL, NULL); /* create context */
1116
1117 if (!NT_STATUS_IS_OK(nt_status)) {
1118 DEBUG(3,("get_correct_cversion: Can't open file [%s], errno = "
1119 "%d\n", smb_fname_str_dbg(smb_fname), errno));
1120 *perr = WERR_ACCESS_DENIED;
1121 goto error_exit;
1122 } else {
1123 uint32_t major;
1124 uint32_t minor;
1125 int ret;
1126
1127 ret = get_file_version(fsp, smb_fname->base_name, &major, &minor);
1128 if (ret == -1) {
1129 *perr = WERR_INVALID_PARAMETER;
1130 goto error_exit;
1131 } else if (!ret) {
1132 DEBUG(6,("get_correct_cversion: Version info not "
1133 "found [%s]\n",
1134 smb_fname_str_dbg(smb_fname)));
1135 *perr = WERR_INVALID_PARAMETER;
1136 goto error_exit;
1137 }
1138
1139 /*
1140 * This is a Microsoft'ism. See references in MSDN to VER_FILEVERSION
1141 * for more details. Version in this case is not just the version of the
1142 * file, but the version in the sense of kernal mode (2) vs. user mode
1143 * (3) drivers. Other bits of the version fields are the version info.
1144 * JRR 010716
1145 */
1146 cversion = major & 0x0000ffff;
1147 switch (cversion) {
1148 case 2: /* WinNT drivers */
1149 case 3: /* Win2K drivers */
1150 break;
1151
1152 default:
1153 DEBUG(6,("get_correct_cversion: cversion "
1154 "invalid [%s] cversion = %d\n",
1155 smb_fname_str_dbg(smb_fname),
1156 cversion));
1157 goto error_exit;
1158 }
1159
1160 DEBUG(10,("get_correct_cversion: Version info found [%s] major"
1161 " = 0x%x minor = 0x%x\n",
1162 smb_fname_str_dbg(smb_fname), major, minor));
1163 }
1164
1165 DEBUG(10,("get_correct_cversion: Driver file [%s] cversion = %d\n",
1166 smb_fname_str_dbg(smb_fname), cversion));
1167 *perr = WERR_OK;
1168
1169 error_exit:
1170 unbecome_user();
1171 error_free_conn:
1172 if (fsp != NULL) {
1173 close_file(NULL, fsp, NORMAL_CLOSE);
1174 }
1175 if (!W_ERROR_IS_OK(*perr)) {
1176 cversion = -1;
1177 }
1178
1179 TALLOC_FREE(frame);
1180 return cversion;
1181 }
1182
1183 /****************************************************************************
1184 ****************************************************************************/
1185
1186 #define strip_driver_path(_mem_ctx, _element) do { \
1187 if (_element && ((_p = strrchr((_element), '\\')) != NULL)) { \
1188 (_element) = talloc_asprintf((_mem_ctx), "%s", _p+1); \
1189 W_ERROR_HAVE_NO_MEMORY((_element)); \
1190 } \
1191 } while (0);
1192
1193 static WERROR clean_up_driver_struct_level(TALLOC_CTX *mem_ctx,
1194 const struct auth_session_info *session_info,
1195 const char *architecture,
1196 const char **driver_path,
1197 const char **data_file,
1198 const char **config_file,
1199 const char **help_file,
1200 struct spoolss_StringArray *dependent_files,
1201 enum spoolss_DriverOSVersion *version,
1202 uint32_t flags,
1203 const char **driver_directory)
1204 {
1205 const char *short_architecture;
1206 int i;
1207 WERROR err;
1208 char *_p;
1209
1210 if (!*driver_path || !*data_file) {
1211 return WERR_INVALID_PARAMETER;
1212 }
1213
1214 if (!strequal(architecture, SPOOLSS_ARCHITECTURE_4_0) && !*config_file) {
1215 return WERR_INVALID_PARAMETER;
1216 }
1217
1218 if (flags & APD_COPY_FROM_DIRECTORY) {
1219 char *path;
1220 char *q;
1221
1222 /*
1223 * driver_path is set to:
1224 *
1225 * \\PRINTSRV\print$\x64\{279245b0-a8bd-4431-bf6f-baee92ac15c0}\pscript5.dll
1226 */
1227 path = talloc_strdup(mem_ctx, *driver_path);
1228 if (path == NULL) {
1229 return WERR_NOT_ENOUGH_MEMORY;
1230 }
1231
1232 /* Remove pscript5.dll */
1233 q = strrchr_m(path, '\\');
1234 if (q == NULL) {
1235 return WERR_INVALID_PARAMETER;
1236 }
1237 *q = '\0';
1238
1239 /* Get \{279245b0-a8bd-4431-bf6f-baee92ac15c0} */
1240 q = strrchr_m(path, '\\');
1241 if (q == NULL) {
1242 return WERR_INVALID_PARAMETER;
1243 }
1244
1245 /*
1246 * Set driver_directory to:
1247 *
1248 * {279245b0-a8bd-4431-bf6f-baee92ac15c0}
1249 *
1250 * This is the directory where all the files have been uploaded
1251 */
1252 *driver_directory = q + 1;
1253 }
1254
1255 /* clean up the driver name.
1256 * we can get .\driver.dll
1257 * or worse c:\windows\system\driver.dll !
1258 */
1259 /* using an intermediate string to not have overlaping memcpy()'s */
1260
1261 strip_driver_path(mem_ctx, *driver_path);
1262 strip_driver_path(mem_ctx, *data_file);
1263 if (*config_file) {
1264 strip_driver_path(mem_ctx, *config_file);
1265 }
1266 if (help_file) {
1267 strip_driver_path(mem_ctx, *help_file);
1268 }
1269
1270 if (dependent_files && dependent_files->string) {
1271 for (i=0; dependent_files->string[i]; i++) {
1272 strip_driver_path(mem_ctx, dependent_files->string[i]);
1273 }
1274 }
1275
1276 short_architecture = get_short_archi(architecture);
1277 if (!short_architecture) {
1278 return WERR_UNKNOWN_PRINTER_DRIVER;
1279 }
1280
1281 /* jfm:7/16/2000 the client always sends the cversion=0.
1282 * The server should check which version the driver is by reading
1283 * the PE header of driver->driverpath.
1284 *
1285 * For Windows 95/98 the version is 0 (so the value sent is correct)
1286 * For Windows NT (the architecture doesn't matter)
1287 * NT 3.1: cversion=0
1288 * NT 3.5/3.51: cversion=1
1289 * NT 4: cversion=2
1290 * NT2K: cversion=3
1291 */
1292
1293 *version = get_correct_cversion(session_info,
1294 short_architecture,
1295 *driver_path,
1296 *driver_directory,
1297 &err);
1298 if (*version == -1) {
1299 return err;
1300 }
1301
1302 return WERR_OK;
1303 }
1304
1305 /****************************************************************************
1306 ****************************************************************************/
1307
1308 WERROR clean_up_driver_struct(TALLOC_CTX *mem_ctx,
1309 const struct auth_session_info *session_info,
1310 const struct spoolss_AddDriverInfoCtr *r,
1311 uint32_t flags,
1312 const char **driver_directory)
1313 {
1314 switch (r->level) {
1315 case 3:
1316 return clean_up_driver_struct_level(mem_ctx, session_info,
1317 r->info.info3->architecture,
1318 &r->info.info3->driver_path,
1319 &r->info.info3->data_file,
1320 &r->info.info3->config_file,
1321 &r->info.info3->help_file,
1322 r->info.info3->dependent_files,
1323 &r->info.info3->version,
1324 flags,
1325 driver_directory);
1326 case 6:
1327 return clean_up_driver_struct_level(mem_ctx, session_info,
1328 r->info.info6->architecture,
1329 &r->info.info6->driver_path,
1330 &r->info.info6->data_file,
1331 &r->info.info6->config_file,
1332 &r->info.info6->help_file,
1333 r->info.info6->dependent_files,
1334 &r->info.info6->version,
1335 flags,
1336 driver_directory);
1337 case 8:
1338 return clean_up_driver_struct_level(mem_ctx, session_info,
1339 r->info.info8->architecture,
1340 &r->info.info8->driver_path,
1341 &r->info.info8->data_file,
1342 &r->info.info8->config_file,
1343 &r->info.info8->help_file,
1344 r->info.info8->dependent_files,
1345 &r->info.info8->version,
1346 flags,
1347 driver_directory);
1348 default:
1349 return WERR_NOT_SUPPORTED;
1350 }
1351 }
1352
1353 /****************************************************************************
1354 This function sucks and should be replaced. JRA.
1355 ****************************************************************************/
1356
1357 static void convert_level_6_to_level3(struct spoolss_AddDriverInfo3 *dst,
1358 const struct spoolss_AddDriverInfo6 *src)
1359 {
1360 dst->version = src->version;
1361
1362 dst->driver_name = src->driver_name;
1363 dst->architecture = src->architecture;
1364 dst->driver_path = src->driver_path;
1365 dst->data_file = src->data_file;
1366 dst->config_file = src->config_file;
1367 dst->help_file = src->help_file;
1368 dst->monitor_name = src->monitor_name;
1369 dst->default_datatype = src->default_datatype;
1370 dst->_ndr_size_dependent_files = src->_ndr_size_dependent_files;
1371 dst->dependent_files = src->dependent_files;
1372 }
1373
1374 static void convert_level_8_to_level3(struct spoolss_AddDriverInfo3 *dst,
1375 const struct spoolss_AddDriverInfo8 *src)
1376 {
1377 dst->version = src->version;
1378
1379 dst->driver_name = src->driver_name;
1380 dst->architecture = src->architecture;
1381 dst->driver_path = src->driver_path;
1382 dst->data_file = src->data_file;
1383 dst->config_file = src->config_file;
1384 dst->help_file = src->help_file;
1385 dst->monitor_name = src->monitor_name;
1386 dst->default_datatype = src->default_datatype;
1387 dst->_ndr_size_dependent_files = src->_ndr_size_dependent_files;
1388 dst->dependent_files = src->dependent_files;
1389 }
1390
1391 /****************************************************************************
1392 ****************************************************************************/
1393
1394 static WERROR move_driver_file_to_download_area(TALLOC_CTX *mem_ctx,
1395 connection_struct *conn,
1396 const char *driver_file,
1397 const char *short_architecture,
1398 uint32_t driver_version,
1399 uint32_t version,
1400 const char *driver_directory)
1401 {
1402 struct smb_filename *smb_fname_old = NULL;
1403 struct smb_filename *smb_fname_new = NULL;
1404 char *old_name = NULL;
1405 char *new_name = NULL;
1406 NTSTATUS status;
1407 WERROR ret;
1408
1409 if (driver_directory != NULL) {
1410 old_name = talloc_asprintf(mem_ctx,
1411 "%s/%s/%s",
1412 short_architecture,
1413 driver_directory,
1414 driver_file);
1415 } else {
1416 old_name = talloc_asprintf(mem_ctx,
1417 "%s/%s",
1418 short_architecture,
1419 driver_file);
1420 }
1421 if (old_name == NULL) {
1422 return WERR_NOT_ENOUGH_MEMORY;
1423 }
1424
1425 new_name = talloc_asprintf(mem_ctx, "%s/%d/%s",
1426 short_architecture, driver_version, driver_file);
1427 if (new_name == NULL) {
1428 TALLOC_FREE(old_name);
1429 return WERR_NOT_ENOUGH_MEMORY;
1430 }
1431
1432 if (version != -1 && (version = file_version_is_newer(conn, old_name, new_name)) > 0) {
1433
1434 status = driver_unix_convert(conn, old_name, &smb_fname_old);
1435 if (!NT_STATUS_IS_OK(status)) {
1436 ret = WERR_NOT_ENOUGH_MEMORY;
1437 goto out;
1438 }
1439
1440 /* Setup a synthetic smb_filename struct */
1441 smb_fname_new = talloc_zero(mem_ctx, struct smb_filename);
1442 if (!smb_fname_new) {
1443 ret = WERR_NOT_ENOUGH_MEMORY;
1444 goto out;
1445 }
1446
1447 smb_fname_new->base_name = new_name;
1448
1449 DEBUG(10,("move_driver_file_to_download_area: copying '%s' to "
1450 "'%s'\n", smb_fname_old->base_name,
1451 smb_fname_new->base_name));
1452
1453 status = copy_file(mem_ctx, conn, smb_fname_old, smb_fname_new,
1454 OPENX_FILE_EXISTS_TRUNCATE |
1455 OPENX_FILE_CREATE_IF_NOT_EXIST,
1456 0, false);
1457
1458 if (!NT_STATUS_IS_OK(status)) {
1459 DEBUG(0,("move_driver_file_to_download_area: Unable "
1460 "to rename [%s] to [%s]: %s\n",
1461 smb_fname_old->base_name, new_name,
1462 nt_errstr(status)));
1463 ret = WERR_APP_INIT_FAILURE;
1464 goto out;
1465 }
1466 }
1467
1468 ret = WERR_OK;
1469 out:
1470 TALLOC_FREE(smb_fname_old);
1471 TALLOC_FREE(smb_fname_new);
1472 return ret;
1473 }
1474
1475 WERROR move_driver_to_download_area(const struct auth_session_info *session_info,
1476 const struct spoolss_AddDriverInfoCtr *r,
1477 const char *driver_directory)
1478 {
1479 TALLOC_CTX *frame = talloc_stackframe();
1480 struct spoolss_AddDriverInfo3 *driver;
1481 struct spoolss_AddDriverInfo3 converted_driver;
1482 const char *short_architecture;
1483 struct smb_filename *smb_dname = NULL;
1484 char *new_dir = NULL;
1485 struct conn_struct_tos *c = NULL;
1486 connection_struct *conn = NULL;
1487 NTSTATUS nt_status;
1488 int i;
1489 int ver = 0;
1490 char *printdollar = NULL;
1491 int printdollar_snum;
1492 WERROR err = WERR_OK;
1493
1494 switch (r->level) {
1495 case 3:
1496 driver = r->info.info3;
1497 break;
1498 case 6:
1499 convert_level_6_to_level3(&converted_driver, r->info.info6);
1500 driver = &converted_driver;
1501 break;
1502 case 8:
1503 convert_level_8_to_level3(&converted_driver, r->info.info8);
1504 driver = &converted_driver;
1505 break;
1506 default:
1507 DEBUG(0,("move_driver_to_download_area: Unknown info level (%u)\n", (unsigned int)r->level));
1508 TALLOC_FREE(frame);
1509 return WERR_INVALID_LEVEL;
1510 }
1511
1512 short_architecture = get_short_archi(driver->architecture);
1513 if (!short_architecture) {
1514 TALLOC_FREE(frame);
1515 return WERR_UNKNOWN_PRINTER_DRIVER;
1516 }
1517
1518 printdollar_snum = find_service(frame, "print$", &printdollar);
1519 if (!printdollar) {
1520 TALLOC_FREE(frame);
1521 return WERR_NOT_ENOUGH_MEMORY;
1522 }
1523 if (printdollar_snum == -1) {
1524 TALLOC_FREE(frame);
1525 return WERR_BAD_NET_NAME;
1526 }
1527
1528 nt_status = create_conn_struct_tos_cwd(server_messaging_context(),
1529 printdollar_snum,
1530 lp_path(frame, printdollar_snum),
1531 session_info,
1532 &c);
1533 if (!NT_STATUS_IS_OK(nt_status)) {
1534 DEBUG(0,("move_driver_to_download_area: create_conn_struct "
1535 "returned %s\n", nt_errstr(nt_status)));
1536 err = ntstatus_to_werror(nt_status);
1537 TALLOC_FREE(frame);
1538 return err;
1539 }
1540 conn = c->conn;
1541
1542 nt_status = set_conn_force_user_group(conn, printdollar_snum);
1543 if (!NT_STATUS_IS_OK(nt_status)) {
1544 DEBUG(0, ("failed set force user / group\n"));
1545 err = ntstatus_to_werror(nt_status);
1546 goto err_free_conn;
1547 }
1548
1549 if (!become_user_by_session(conn, session_info)) {
1550 DEBUG(0, ("failed to become user\n"));
1551 err = WERR_ACCESS_DENIED;
1552 goto err_free_conn;
1553 }
1554
1555 new_dir = talloc_asprintf(frame,
1556 "%s/%d",
1557 short_architecture,
1558 driver->version);
1559 if (!new_dir) {
1560 err = WERR_NOT_ENOUGH_MEMORY;
1561 goto err_exit;
1562 }
1563 nt_status = driver_unix_convert(conn, new_dir, &smb_dname);
1564 if (!NT_STATUS_IS_OK(nt_status)) {
1565 err = WERR_NOT_ENOUGH_MEMORY;
1566 goto err_exit;
1567 }
1568
1569 DEBUG(5,("Creating first directory: %s\n", smb_dname->base_name));
1570
1571 nt_status = create_directory(conn, NULL, smb_dname);
1572 if (!NT_STATUS_IS_OK(nt_status)
1573 && !NT_STATUS_EQUAL(nt_status, NT_STATUS_OBJECT_NAME_COLLISION)) {
1574 DEBUG(0, ("failed to create driver destination directory: %s\n",
1575 nt_errstr(nt_status)));
1576 err = ntstatus_to_werror(nt_status);
1577 goto err_exit;
1578 }
1579
1580 /* For each driver file, archi\filexxx.yyy, if there is a duplicate file
1581 * listed for this driver which has already been moved, skip it (note:
1582 * drivers may list the same file name several times. Then check if the
1583 * file already exists in archi\version\, if so, check that the version
1584 * info (or time stamps if version info is unavailable) is newer (or the
1585 * date is later). If it is, move it to archi\version\filexxx.yyy.
1586 * Otherwise, delete the file.
1587 *
1588 * If a file is not moved to archi\version\ because of an error, all the
1589 * rest of the 'unmoved' driver files are removed from archi\. If one or
1590 * more of the driver's files was already moved to archi\version\, it
1591 * potentially leaves the driver in a partially updated state. Version
1592 * trauma will most likely occur if an client attempts to use any printer
1593 * bound to the driver. Perhaps a rewrite to make sure the moves can be
1594 * done is appropriate... later JRR
1595 */
1596
1597 DEBUG(5,("Moving files now !\n"));
1598
1599 if (driver->driver_path && strlen(driver->driver_path)) {
1600
1601 err = move_driver_file_to_download_area(frame,
1602 conn,
1603 driver->driver_path,
1604 short_architecture,
1605 driver->version,
1606 ver,
1607 driver_directory);
1608 if (!W_ERROR_IS_OK(err)) {
1609 goto err_exit;
1610 }
1611 }
1612
1613 if (driver->data_file && strlen(driver->data_file)) {
1614 if (!strequal(driver->data_file, driver->driver_path)) {
1615
1616 err = move_driver_file_to_download_area(frame,
1617 conn,
1618 driver->data_file,
1619 short_architecture,
1620 driver->version,
1621 ver,
1622 driver_directory);
1623 if (!W_ERROR_IS_OK(err)) {
1624 goto err_exit;
1625 }
1626 }
1627 }
1628
1629 if (driver->config_file && strlen(driver->config_file)) {
1630 if (!strequal(driver->config_file, driver->driver_path) &&
1631 !strequal(driver->config_file, driver->data_file)) {
1632
1633 err = move_driver_file_to_download_area(frame,
1634 conn,
1635 driver->config_file,
1636 short_architecture,
1637 driver->version,
1638 ver,
1639 driver_directory);
1640 if (!W_ERROR_IS_OK(err)) {
1641 goto err_exit;
1642 }
1643 }
1644 }
1645
1646 if (driver->help_file && strlen(driver->help_file)) {
1647 if (!strequal(driver->help_file, driver->driver_path) &&
1648 !strequal(driver->help_file, driver->data_file) &&
1649 !strequal(driver->help_file, driver->config_file)) {
1650
1651 err = move_driver_file_to_download_area(frame,
1652 conn,
1653 driver->help_file,
1654 short_architecture,
1655 driver->version,
1656 ver,
1657 driver_directory);
1658 if (!W_ERROR_IS_OK(err)) {
1659 goto err_exit;
1660 }
1661 }
1662 }
1663
1664 if (driver->dependent_files && driver->dependent_files->string) {
1665 for (i=0; driver->dependent_files->string[i]; i++) {
1666 if (!strequal(driver->dependent_files->string[i], driver->driver_path) &&
1667 !strequal(driver->dependent_files->string[i], driver->data_file) &&
1668 !strequal(driver->dependent_files->string[i], driver->config_file) &&
1669 !strequal(driver->dependent_files->string[i], driver->help_file)) {
1670 int j;
1671 for (j=0; j < i; j++) {
1672 if (strequal(driver->dependent_files->string[i], driver->dependent_files->string[j])) {
1673 goto NextDriver;
1674 }
1675 }
1676
1677 err = move_driver_file_to_download_area(frame,
1678 conn,
1679 driver->dependent_files->string[i],
1680 short_architecture,
1681 driver->version,
1682 ver,
1683 driver_directory);
1684 if (!W_ERROR_IS_OK(err)) {
1685 goto err_exit;
1686 }
1687 }
1688 NextDriver: ;
1689 }
1690 }
1691
1692 err = WERR_OK;
1693 err_exit:
1694 unbecome_user();
1695 err_free_conn:
1696 TALLOC_FREE(frame);
1697 return err;
1698 }
1699
1700 /****************************************************************************
1701 Determine whether or not a particular driver is currently assigned
1702 to a printer
1703 ****************************************************************************/
1704
1705 bool printer_driver_in_use(TALLOC_CTX *mem_ctx,
1706 struct dcerpc_binding_handle *b,
1707 const struct spoolss_DriverInfo8 *r)
1708 {
1709 int snum;
1710 int n_services = lp_numservices();
1711 bool in_use = false;
1712 struct spoolss_PrinterInfo2 *pinfo2 = NULL;
1713 WERROR result;
1714
1715 if (!r) {
1716 return false;
1717 }
1718
1719 DEBUG(10,("printer_driver_in_use: Beginning search through ntprinters.tdb...\n"));
1720
1721 /* loop through the printers.tdb and check for the drivername */
1722
1723 for (snum=0; snum<n_services && !in_use; snum++) {
1724 if (!lp_snum_ok(snum) || !lp_printable(snum)) {
1725 continue;
1726 }
1727
1728 result = winreg_get_printer(mem_ctx, b,
1729 lp_servicename(talloc_tos(), snum),
1730 &pinfo2);
1731 if (!W_ERROR_IS_OK(result)) {
1732 continue; /* skip */
1733 }
1734
1735 if (strequal(r->driver_name, pinfo2->drivername)) {
1736 in_use = true;
1737 }
1738
1739 TALLOC_FREE(pinfo2);
1740 }
1741
1742 DEBUG(10,("printer_driver_in_use: Completed search through ntprinters.tdb...\n"));
1743
1744 if ( in_use ) {
1745 struct spoolss_DriverInfo8 *driver = NULL;
1746 WERROR werr;
1747
1748 DEBUG(5,("printer_driver_in_use: driver \"%s\" is currently in use\n", r->driver_name));
1749
1750 /* we can still remove the driver if there is one of
1751 "Windows NT x86" version 2 or 3 left */
1752
1753 if (strequal(SPOOLSS_ARCHITECTURE_NT_X86, r->architecture)) {
1754 if (r->version == 2) {
1755 werr = winreg_get_driver(mem_ctx, b,
1756 r->architecture,
1757 r->driver_name,
1758 3, &driver);
1759 } else if (r->version == 3) {
1760 werr = winreg_get_driver(mem_ctx, b,
1761 r->architecture,
1762 r->driver_name,
1763 2, &driver);
1764 } else {
1765 DBG_ERR("Unknown driver version (%d)\n",
1766 r->version);
1767 werr = WERR_UNKNOWN_PRINTER_DRIVER;
1768 }
1769 } else if (strequal(SPOOLSS_ARCHITECTURE_x64, r->architecture)) {
1770 werr = winreg_get_driver(mem_ctx, b,
1771 SPOOLSS_ARCHITECTURE_NT_X86,
1772 r->driver_name,
1773 DRIVER_ANY_VERSION,
1774 &driver);
1775 } else {
1776 DBG_ERR("Unknown driver architecture: %s\n",
1777 r->architecture);
1778 werr = WERR_UNKNOWN_PRINTER_DRIVER;
1779 }
1780
1781 /* now check the error code */
1782
1783 if ( W_ERROR_IS_OK(werr) ) {
1784 /* it's ok to remove the driver, we have other architctures left */
1785 in_use = false;
1786 talloc_free(driver);
1787 }
1788 }
1789
1790 /* report that the driver is not in use by default */
1791
1792 return in_use;
1793 }
1794
1795
1796 /**********************************************************************
1797 Check to see if a ogiven file is in use by *info
1798 *********************************************************************/
1799
1800 static bool drv_file_in_use(const char *file, const struct spoolss_DriverInfo8 *info)
1801 {
1802 int i = 0;
1803
1804 if ( !info )
1805 return False;
1806
1807 /* mz: skip files that are in the list but already deleted */
1808 if (!file || !file[0]) {
1809 return false;
1810 }
1811
1812 if (strequal(file, info->driver_path))
1813 return True;
1814
1815 if (strequal(file, info->data_file))
1816 return True;
1817
1818 if (strequal(file, info->config_file))
1819 return True;
1820
1821 if (strequal(file, info->help_file))
1822 return True;
1823
1824 /* see of there are any dependent files to examine */
1825
1826 if (!info->dependent_files)
1827 return False;
1828
1829 while (info->dependent_files[i] && *info->dependent_files[i]) {
1830 if (strequal(file, info->dependent_files[i]))
1831 return True;
1832 i++;
1833 }
1834
1835 return False;
1836
1837 }
1838
1839 /**********************************************************************
1840 Utility function to remove the dependent file pointed to by the
1841 input parameter from the list
1842 *********************************************************************/
1843
1844 static void trim_dependent_file(TALLOC_CTX *mem_ctx, const char **files, int idx)
1845 {
1846
1847 /* bump everything down a slot */
1848
1849 while (files && files[idx+1]) {
1850 files[idx] = talloc_strdup(mem_ctx, files[idx+1]);
1851 idx++;
1852 }
1853
1854 files[idx] = NULL;
1855
1856 return;
1857 }
1858
1859 /**********************************************************************
1860 Check if any of the files used by src are also used by drv
1861 *********************************************************************/
1862
1863 static bool trim_overlap_drv_files(TALLOC_CTX *mem_ctx,
1864 struct spoolss_DriverInfo8 *src,
1865 const struct spoolss_DriverInfo8 *drv)
1866 {
1867 bool in_use = False;
1868 int i = 0;
1869
1870 if ( !src || !drv )
1871 return False;
1872
1873 /* check each file. Remove it from the src structure if it overlaps */
1874
1875 if (drv_file_in_use(src->driver_path, drv)) {
1876 in_use = True;
1877 DEBUG(10,("Removing driverfile [%s] from list\n", src->driver_path));
1878 src->driver_path = talloc_strdup(mem_ctx, "");
1879 if (!src->driver_path) { return false; }
1880 }
1881
1882 if (drv_file_in_use(src->data_file, drv)) {
1883 in_use = True;
1884 DEBUG(10,("Removing datafile [%s] from list\n", src->data_file));
1885 src->data_file = talloc_strdup(mem_ctx, "");
1886 if (!src->data_file) { return false; }
1887 }
1888
1889 if (drv_file_in_use(src->config_file, drv)) {
1890 in_use = True;
1891 DEBUG(10,("Removing configfile [%s] from list\n", src->config_file));
1892 src->config_file = talloc_strdup(mem_ctx, "");
1893 if (!src->config_file) { return false; }
1894 }
1895
1896 if (drv_file_in_use(src->help_file, drv)) {
1897 in_use = True;
1898 DEBUG(10,("Removing helpfile [%s] from list\n", src->help_file));
1899 src->help_file = talloc_strdup(mem_ctx, "");
1900 if (!src->help_file) { return false; }
1901 }
1902
1903 /* are there any dependentfiles to examine? */
1904
1905 if (!src->dependent_files)
1906 return in_use;
1907
1908 while (src->dependent_files[i] && *src->dependent_files[i]) {
1909 if (drv_file_in_use(src->dependent_files[i], drv)) {
1910 in_use = True;
1911 DEBUG(10,("Removing [%s] from dependent file list\n", src->dependent_files[i]));
1912 trim_dependent_file(mem_ctx, src->dependent_files, i);
1913 } else
1914 i++;
1915 }
1916
1917 return in_use;
1918 }
1919
1920 /****************************************************************************
1921 Determine whether or not a particular driver files are currently being
1922 used by any other driver.
1923
1924 Return value is True if any files were in use by other drivers
1925 and False otherwise.
1926
1927 Upon return, *info has been modified to only contain the driver files
1928 which are not in use
1929
1930 Fix from mz:
1931
1932 This needs to check all drivers to ensure that all files in use
1933 have been removed from *info, not just the ones in the first
1934 match.
1935 ****************************************************************************/
1936
1937 bool printer_driver_files_in_use(TALLOC_CTX *mem_ctx,
1938 struct dcerpc_binding_handle *b,
1939 struct spoolss_DriverInfo8 *info)
1940 {
1941 int i;
1942 uint32_t version;
1943 struct spoolss_DriverInfo8 *driver;
1944 bool in_use = false;
1945 uint32_t num_drivers;
1946 const char **drivers;
1947 WERROR result;
1948
1949 if ( !info )
1950 return False;
1951
1952 version = info->version;
1953
1954 /* loop over all driver versions */
1955
1956 DEBUG(5,("printer_driver_files_in_use: Beginning search of drivers...\n"));
1957
1958 /* get the list of drivers */
1959
1960 result = winreg_get_driver_list(mem_ctx, b,
1961 info->architecture, version,
1962 &num_drivers, &drivers);
1963 if (!W_ERROR_IS_OK(result)) {
1964 return true;
1965 }
1966
1967 DEBUGADD(4, ("we have:[%d] drivers in environment [%s] and version [%d]\n",
1968 num_drivers, info->architecture, version));
1969
1970 /* check each driver for overlap in files */
1971
1972 for (i = 0; i < num_drivers; i++) {
1973 DEBUGADD(5,("\tdriver: [%s]\n", drivers[i]));
1974
1975 driver = NULL;
1976
1977 result = winreg_get_driver(mem_ctx, b,
1978 info->architecture, drivers[i],
1979 version, &driver);
1980 if (!W_ERROR_IS_OK(result)) {
1981 talloc_free(drivers);
1982 return True;
1983 }
1984
1985 /* check if d2 uses any files from d1 */
1986 /* only if this is a different driver than the one being deleted */
1987
1988 if (!strequal(info->driver_name, driver->driver_name)) {
1989 if (trim_overlap_drv_files(mem_ctx, info, driver)) {
1990 /* mz: Do not instantly return -
1991 * we need to ensure this file isn't
1992 * also in use by other drivers. */
1993 in_use = true;
1994 }
1995 }
1996
1997 talloc_free(driver);
1998 }
1999
2000 talloc_free(drivers);
2001
2002 DEBUG(5,("printer_driver_files_in_use: Completed search of drivers...\n"));
2003
2004 return in_use;
2005 }
2006
2007 static NTSTATUS driver_unlink_internals(connection_struct *conn,
2008 const char *short_arch,
2009 int vers,
2010 const char *fname)
2011 {
2012 TALLOC_CTX *tmp_ctx = talloc_new(conn);
2013 struct smb_filename *smb_fname = NULL;
2014 char *print_dlr_path;
2015 NTSTATUS status = NT_STATUS_NO_MEMORY;
2016
2017 print_dlr_path = talloc_asprintf(tmp_ctx, "%s/%d/%s",
2018 short_arch, vers, fname);
2019 if (print_dlr_path == NULL) {
2020 goto err_out;
2021 }
2022
2023 smb_fname = synthetic_smb_fname(tmp_ctx, print_dlr_path, NULL, NULL, 0);
2024 if (smb_fname == NULL) {
2025 goto err_out;
2026 }
2027
2028 status = unlink_internals(conn, NULL, 0, smb_fname, false);
2029 err_out:
2030 talloc_free(tmp_ctx);
2031 return status;
2032 }
2033
2034 /****************************************************************************
2035 Actually delete the driver files. Make sure that
2036 printer_driver_files_in_use() return False before calling
2037 this.
2038 ****************************************************************************/
2039
2040 bool delete_driver_files(const struct auth_session_info *session_info,
2041 const struct spoolss_DriverInfo8 *r)
2042 {
2043 TALLOC_CTX *frame = talloc_stackframe();
2044 const char *short_arch;
2045 struct conn_struct_tos *c = NULL;
2046 connection_struct *conn = NULL;
2047 NTSTATUS nt_status;
2048 char *printdollar = NULL;
2049 int printdollar_snum;
2050 bool ret = false;
2051
2052 if (!r) {
2053 TALLOC_FREE(frame);
2054 return false;
2055 }
2056
2057 DEBUG(6,("delete_driver_files: deleting driver [%s] - version [%d]\n",
2058 r->driver_name, r->version));
2059
2060 printdollar_snum = find_service(frame, "print$", &printdollar);
2061 if (!printdollar) {
2062 TALLOC_FREE(frame);
2063 return false;
2064 }
2065 if (printdollar_snum == -1) {
2066 TALLOC_FREE(frame);
2067 return false;
2068 }
2069
2070 nt_status = create_conn_struct_tos_cwd(server_messaging_context(),
2071 printdollar_snum,
2072 lp_path(frame, printdollar_snum),
2073 session_info,
2074 &c);
2075 if (!NT_STATUS_IS_OK(nt_status)) {
2076 DEBUG(0,("delete_driver_files: create_conn_struct "
2077 "returned %s\n", nt_errstr(nt_status)));
2078 TALLOC_FREE(frame);
2079 return false;
2080 }
2081 conn = c->conn;
2082
2083 nt_status = set_conn_force_user_group(conn, printdollar_snum);
2084 if (!NT_STATUS_IS_OK(nt_status)) {
2085 DEBUG(0, ("failed set force user / group\n"));
2086 ret = false;
2087 goto err_free_conn;
2088 }
2089
2090 if (!become_user_by_session(conn, session_info)) {
2091 DEBUG(0, ("failed to become user\n"));
2092 ret = false;
2093 goto err_free_conn;
2094 }
2095
2096 if ( !CAN_WRITE(conn) ) {
2097 DEBUG(3,("delete_driver_files: Cannot delete print driver when [print$] is read-only\n"));
2098 ret = false;
2099 goto err_out;
2100 }
2101
2102 short_arch = get_short_archi(r->architecture);
2103 if (short_arch == NULL) {
2104 DEBUG(0, ("bad architecture %s\n", r->architecture));
2105 ret = false;
2106 goto err_out;
2107 }
2108
2109 /* now delete the files */
2110
2111 if (r->driver_path && r->driver_path[0]) {
2112 DEBUG(10,("deleting driverfile [%s]\n", r->driver_path));
2113 driver_unlink_internals(conn, short_arch, r->version, r->driver_path);
2114 }
2115
2116 if (r->config_file && r->config_file[0]) {
2117 DEBUG(10,("deleting configfile [%s]\n", r->config_file));
2118 driver_unlink_internals(conn, short_arch, r->version, r->config_file);
2119 }
2120
2121 if (r->data_file && r->data_file[0]) {
2122 DEBUG(10,("deleting datafile [%s]\n", r->data_file));
2123 driver_unlink_internals(conn, short_arch, r->version, r->data_file);
2124 }
2125
2126 if (r->help_file && r->help_file[0]) {
2127 DEBUG(10,("deleting helpfile [%s]\n", r->help_file));
2128 driver_unlink_internals(conn, short_arch, r->version, r->help_file);
2129 }
2130
2131 if (r->dependent_files) {
2132 int i = 0;
2133 while (r->dependent_files[i] && r->dependent_files[i][0]) {
2134 DEBUG(10,("deleting dependent file [%s]\n", r->dependent_files[i]));
2135 driver_unlink_internals(conn, short_arch, r->version, r->dependent_files[i]);
2136 i++;
2137 }
2138 }
2139
2140 ret = true;
2141 err_out:
2142 unbecome_user();
2143 err_free_conn:
2144 TALLOC_FREE(frame);
2145 return ret;
2146 }
2147
2148 /* error code:
2149 0: everything OK
2150 1: level not implemented
2151 2: file doesn't exist
2152 3: can't allocate memory
2153 4: can't free memory
2154 5: non existent struct
2155 */
2156
2157 /*
2158 A printer and a printer driver are 2 different things.
2159 NT manages them separatelly, Samba does the same.
2160 Why ? Simply because it's easier and it makes sense !
2161
2162 Now explanation: You have 3 printers behind your samba server,
2163 2 of them are the same make and model (laser A and B). But laser B
2164 has an 3000 sheet feeder and laser A doesn't such an option.
2165 Your third printer is an old dot-matrix model for the accounting :-).
2166
2167 If the /usr/local/samba/lib directory (default dir), you will have
2168 5 files to describe all of this.
2169
2170 3 files for the printers (1 by printer):
2171 NTprinter_laser A
2172 NTprinter_laser B
2173 NTprinter_accounting
2174 2 files for the drivers (1 for the laser and 1 for the dot matrix)
2175 NTdriver_printer model X
2176 NTdriver_printer model Y
2177
2178 jfm: I should use this comment for the text file to explain
2179 same thing for the forms BTW.
2180 Je devrais mettre mes commentaires en francais, ca serait mieux :-)
2181
2182 */
2183
2184 /* Convert generic access rights to printer object specific access rights.
2185 It turns out that NT4 security descriptors use generic access rights and
2186 NT5 the object specific ones. */
2187
2188 void map_printer_permissions(struct security_descriptor *sd)
2189 {
2190 int i;
2191
2192 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
2193 se_map_generic(&sd->dacl->aces[i].access_mask,
2194 &printer_generic_mapping);
2195 }
2196 }
2197
2198 void map_job_permissions(struct security_descriptor *sd)
2199 {
2200 int i;
2201
2202 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
2203 se_map_generic(&sd->dacl->aces[i].access_mask,
2204 &job_generic_mapping);
2205 }
2206 }
2207
2208
2209 /****************************************************************************
2210 Check a user has permissions to perform the given operation. We use the
2211 permission constants defined in include/rpc_spoolss.h to check the various
2212 actions we perform when checking printer access.
2213
2214 PRINTER_ACCESS_ADMINISTER:
2215 print_queue_pause, print_queue_resume, update_printer_sec,
2216 update_printer, spoolss_addprinterex_level_2,
2217 _spoolss_setprinterdata
2218
2219 PRINTER_ACCESS_USE:
2220 print_job_start
2221
2222 JOB_ACCESS_ADMINISTER:
2223 print_job_delete, print_job_pause, print_job_resume,
2224 print_queue_purge
2225
2226 Try access control in the following order (for performance reasons):
2227 1) root and SE_PRINT_OPERATOR can do anything (easy check)
2228 2) check security descriptor (bit comparisons in memory)
2229 3) "printer admins" (may result in numerous calls to winbind)
2230
2231 ****************************************************************************/
2232 WERROR print_access_check(const struct auth_session_info *session_info,
2233 struct messaging_context *msg_ctx, int snum,
2234 int access_type)
2235 {
2236 struct spoolss_security_descriptor *secdesc = NULL;
2237 uint32_t access_granted;
2238 size_t sd_size;
2239 NTSTATUS status;
2240 WERROR result;
2241 const char *pname;
2242 TALLOC_CTX *mem_ctx = NULL;
2243
2244 /* If user is NULL then use the current_user structure */
2245
2246 /* Always allow root or SE_PRINT_OPERATROR to do anything */
2247
2248 if ((session_info->unix_token->uid == sec_initial_uid())
2249 || security_token_has_privilege(session_info->security_token,
2250 SEC_PRIV_PRINT_OPERATOR)) {
2251 return WERR_OK;
2252 }
2253
2254 /* Get printer name */
2255
2256 pname = lp_printername(talloc_tos(), snum);
2257
2258 if (!pname || !*pname) {
2259 return WERR_ACCESS_DENIED;
2260 }
2261
2262 /* Get printer security descriptor */
2263
2264 if(!(mem_ctx = talloc_init("print_access_check"))) {
2265 return WERR_NOT_ENOUGH_MEMORY;
2266 }
2267
2268 result = winreg_get_printer_secdesc_internal(mem_ctx,
2269 get_session_info_system(),
2270 msg_ctx,
2271 pname,
2272 &secdesc);
2273 if (!W_ERROR_IS_OK(result)) {
2274 talloc_destroy(mem_ctx);
2275 return WERR_NOT_ENOUGH_MEMORY;
2276 }
2277
2278 if (access_type == JOB_ACCESS_ADMINISTER) {
2279 struct spoolss_security_descriptor *parent_secdesc = secdesc;
2280
2281 /* Create a child security descriptor to check permissions
2282 against. This is because print jobs are child objects
2283 objects of a printer. */
2284 status = se_create_child_secdesc(mem_ctx,
2285 &secdesc,
2286 &sd_size,
2287 parent_secdesc,
2288 parent_secdesc->owner_sid,
2289 parent_secdesc->group_sid,
2290 false);
2291 if (!NT_STATUS_IS_OK(status)) {
2292 talloc_destroy(mem_ctx);
2293 return ntstatus_to_werror(status);
2294 }
2295
2296 map_job_permissions(secdesc);
2297 } else {
2298 map_printer_permissions(secdesc);
2299 }
2300
2301 /* Check access */
2302 status = se_access_check(secdesc, session_info->security_token, access_type,
2303 &access_granted);
2304
2305 DEBUG(4, ("access check was %s\n", NT_STATUS_IS_OK(status) ? "SUCCESS" : "FAILURE"));
2306
2307 talloc_destroy(mem_ctx);
2308
2309 return ntstatus_to_werror(status);
2310 }
2311
2312 /****************************************************************************
2313 Check the time parameters allow a print operation.
2314 *****************************************************************************/
2315
2316 bool print_time_access_check(const struct auth_session_info *session_info,
2317 struct messaging_context *msg_ctx,
2318 const char *servicename)
2319 {
2320 struct spoolss_PrinterInfo2 *pinfo2 = NULL;
2321 WERROR result;
2322 bool ok = False;
2323 time_t now = time(NULL);
2324 struct tm *t;
2325 uint32_t mins;
2326
2327 result = winreg_get_printer_internal(NULL, session_info, msg_ctx,
2328 servicename, &pinfo2);
2329 if (!W_ERROR_IS_OK(result)) {
2330 return False;
2331 }
2332
2333 if (pinfo2->starttime == 0 && pinfo2->untiltime == 0) {
2334 ok = True;
2335 }
2336
2337 t = gmtime(&now);
2338 mins = (uint32_t)t->tm_hour*60 + (uint32_t)t->tm_min;
2339
2340 if (mins >= pinfo2->starttime && mins <= pinfo2->untiltime) {
2341 ok = True;
2342 }
2343
2344 TALLOC_FREE(pinfo2);
2345
2346 if (!ok) {
2347 errno = EACCES;
2348 }
2349
2350 return ok;
2351 }
2352
2353 void nt_printer_remove(TALLOC_CTX *mem_ctx,
2354 const struct auth_session_info *session_info,
2355 struct messaging_context *msg_ctx,
2356 const char *printer)
2357 {
2358 WERROR result;
2359
2360 result = winreg_delete_printer_key_internal(mem_ctx, session_info, msg_ctx,
2361 printer, "");
2362 if (!W_ERROR_IS_OK(result)) {
2363 DEBUG(0, ("nt_printer_remove: failed to remove printer %s: "
2364 "%s\n", printer, win_errstr(result)));
2365 }
2366 }
2367
2368 void nt_printer_add(TALLOC_CTX *mem_ctx,
2369 const struct auth_session_info *session_info,
2370 struct messaging_context *msg_ctx,
2371 const char *printer)
2372 {
2373 WERROR result;
2374
2375 result = winreg_create_printer_internal(mem_ctx, session_info, msg_ctx,
2376 printer);
2377 if (!W_ERROR_IS_OK(result)) {
2378 DEBUG(0, ("nt_printer_add: failed to add printer %s: %s\n",
2379 printer, win_errstr(result)));
2380 }
2381 }
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