source3/printing/nt_printing.c

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