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_PARAM;
 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_NOMEM;
 700                 return -1;
 701         }
 702         if (printdollar_snum == -1) {
 703                 *perr = WERR_NO_SUCH_SHARE;
 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_NOMEM;
 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_BADFILE;
 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_PARAM;
 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_PARAM;
 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_PARAM;
 876         }
 877
 878         if (!strequal(architecture, SPOOLSS_ARCHITECTURE_4_0) && !*config_file) {
 879                 return WERR_INVALID_PARAM;
 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         default:
 956                 return WERR_NOT_SUPPORTED;
 957         }
 958 }
 959
 960 /****************************************************************************
 961  This function sucks and should be replaced. JRA.
 962 ****************************************************************************/
 963
 964 static void convert_level_6_to_level3(struct spoolss_AddDriverInfo3 *dst,
 965                                       const struct spoolss_AddDriverInfo6 *src)
 966 {
 967         dst->version            = src->version;
 968
 969         dst->driver_name        = src->driver_name;
 970         dst->architecture       = src->architecture;
 971         dst->driver_path        = src->driver_path;
 972         dst->data_file          = src->data_file;
 973         dst->config_file        = src->config_file;
 974         dst->help_file          = src->help_file;
 975         dst->monitor_name       = src->monitor_name;
 976         dst->default_datatype   = src->default_datatype;
 977         dst->_ndr_size_dependent_files = src->_ndr_size_dependent_files;
 978         dst->dependent_files    = src->dependent_files;
 979 }
 980
 981 /****************************************************************************
 982 ****************************************************************************/
 983
 984 static WERROR move_driver_file_to_download_area(TALLOC_CTX *mem_ctx,
 985                                                 connection_struct *conn,
 986                                                 const char *driver_file,
 987                                                 const char *short_architecture,
 988                                                 uint32_t driver_version,
 989                                                 uint32_t version)
 990 {
 991         struct smb_filename *smb_fname_old = NULL;
 992         struct smb_filename *smb_fname_new = NULL;
 993         char *old_name = NULL;
 994         char *new_name = NULL;
 995         NTSTATUS status;
 996         WERROR ret;
 997
 998         old_name = talloc_asprintf(mem_ctx, "%s/%s",
 999                                    short_architecture, driver_file);
1000         W_ERROR_HAVE_NO_MEMORY(old_name);
1001
1002         new_name = talloc_asprintf(mem_ctx, "%s/%d/%s",
1003                                    short_architecture, driver_version, driver_file);
1004         if (new_name == NULL) {
1005                 TALLOC_FREE(old_name);
1006                 return WERR_NOMEM;
1007         }
1008
1009         if (version != -1 && (version = file_version_is_newer(conn, old_name, new_name)) > 0) {
1010
1011                 status = driver_unix_convert(conn, old_name, &smb_fname_old);
1012                 if (!NT_STATUS_IS_OK(status)) {
1013                         ret = WERR_NOMEM;
1014                         goto out;
1015                 }
1016
1017                 /* Setup a synthetic smb_filename struct */
1018                 smb_fname_new = talloc_zero(mem_ctx, struct smb_filename);
1019                 if (!smb_fname_new) {
1020                         ret = WERR_NOMEM;
1021                         goto out;
1022                 }
1023
1024                 smb_fname_new->base_name = new_name;
1025
1026                 DEBUG(10,("move_driver_file_to_download_area: copying '%s' to "
1027                           "'%s'\n", smb_fname_old->base_name,
1028                           smb_fname_new->base_name));
1029
1030                 status = copy_file(mem_ctx, conn, smb_fname_old, smb_fname_new,
1031                                    OPENX_FILE_EXISTS_TRUNCATE |
1032                                    OPENX_FILE_CREATE_IF_NOT_EXIST,
1033                                    0, false);
1034
1035                 if (!NT_STATUS_IS_OK(status)) {
1036                         DEBUG(0,("move_driver_file_to_download_area: Unable "
1037                                  "to rename [%s] to [%s]: %s\n",
1038                                  smb_fname_old->base_name, new_name,
1039                                  nt_errstr(status)));
1040                         ret = WERR_ACCESS_DENIED;
1041                         goto out;
1042                 }
1043         }
1044
1045         ret = WERR_OK;
1046  out:
1047         TALLOC_FREE(smb_fname_old);
1048         TALLOC_FREE(smb_fname_new);
1049         return ret;
1050 }
1051
1052 WERROR move_driver_to_download_area(struct auth_session_info *session_info,
1053                                     struct spoolss_AddDriverInfoCtr *r)
1054 {
1055         struct spoolss_AddDriverInfo3 *driver;
1056         struct spoolss_AddDriverInfo3 converted_driver;
1057         const char *short_architecture;
1058         struct smb_filename *smb_dname = NULL;
1059         char *new_dir = NULL;
1060         connection_struct *conn = NULL;
1061         NTSTATUS nt_status;
1062         int i;
1063         TALLOC_CTX *ctx = talloc_tos();
1064         int ver = 0;
1065         char *oldcwd;
1066         char *printdollar = NULL;
1067         int printdollar_snum;
1068         WERROR err = WERR_OK;
1069
1070         switch (r->level) {
1071         case 3:
1072                 driver = r->info.info3;
1073                 break;
1074         case 6:
1075                 convert_level_6_to_level3(&converted_driver, r->info.info6);
1076                 driver = &converted_driver;
1077                 break;
1078         default:
1079                 DEBUG(0,("move_driver_to_download_area: Unknown info level (%u)\n", (unsigned int)r->level));
1080                 return WERR_UNKNOWN_LEVEL;
1081         }
1082
1083         short_architecture = get_short_archi(driver->architecture);
1084         if (!short_architecture) {
1085                 return WERR_UNKNOWN_PRINTER_DRIVER;
1086         }
1087
1088         printdollar_snum = find_service(ctx, "print$", &printdollar);
1089         if (!printdollar) {
1090                 return WERR_NOMEM;
1091         }
1092         if (printdollar_snum == -1) {
1093                 return WERR_NO_SUCH_SHARE;
1094         }
1095
1096         nt_status = create_conn_struct_cwd(talloc_tos(),
1097                                            server_event_context(),
1098                                            server_messaging_context(),
1099                                            &conn,
1100                                            printdollar_snum,
1101                                            lp_path(talloc_tos(), printdollar_snum),
1102                                            session_info, &oldcwd);
1103         if (!NT_STATUS_IS_OK(nt_status)) {
1104                 DEBUG(0,("move_driver_to_download_area: create_conn_struct "
1105                          "returned %s\n", nt_errstr(nt_status)));
1106                 err = ntstatus_to_werror(nt_status);
1107                 return err;
1108         }
1109
1110         nt_status = set_conn_force_user_group(conn, printdollar_snum);
1111         if (!NT_STATUS_IS_OK(nt_status)) {
1112                 DEBUG(0, ("failed set force user / group\n"));
1113                 err = ntstatus_to_werror(nt_status);
1114                 goto err_free_conn;
1115         }
1116
1117         if (!become_user_by_session(conn, session_info)) {
1118                 DEBUG(0, ("failed to become user\n"));
1119                 err = WERR_ACCESS_DENIED;
1120                 goto err_free_conn;
1121         }
1122
1123         new_dir = talloc_asprintf(ctx,
1124                                 "%s/%d",
1125                                 short_architecture,
1126                                 driver->version);
1127         if (!new_dir) {
1128                 err = WERR_NOMEM;
1129                 goto err_exit;
1130         }
1131         nt_status = driver_unix_convert(conn, new_dir, &smb_dname);
1132         if (!NT_STATUS_IS_OK(nt_status)) {
1133                 err = WERR_NOMEM;
1134                 goto err_exit;
1135         }
1136
1137         DEBUG(5,("Creating first directory: %s\n", smb_dname->base_name));
1138
1139         nt_status = create_directory(conn, NULL, smb_dname);
1140         if (!NT_STATUS_IS_OK(nt_status)
1141          && !NT_STATUS_EQUAL(nt_status, NT_STATUS_OBJECT_NAME_COLLISION)) {
1142                 DEBUG(0, ("failed to create driver destination directory: %s\n",
1143                           nt_errstr(nt_status)));
1144                 err = ntstatus_to_werror(nt_status);
1145                 goto err_exit;
1146         }
1147
1148         /* For each driver file, archi\filexxx.yyy, if there is a duplicate file
1149          * listed for this driver which has already been moved, skip it (note:
1150          * drivers may list the same file name several times. Then check if the
1151          * file already exists in archi\version\, if so, check that the version
1152          * info (or time stamps if version info is unavailable) is newer (or the
1153          * date is later). If it is, move it to archi\version\filexxx.yyy.
1154          * Otherwise, delete the file.
1155          *
1156          * If a file is not moved to archi\version\ because of an error, all the
1157          * rest of the 'unmoved' driver files are removed from archi\. If one or
1158          * more of the driver's files was already moved to archi\version\, it
1159          * potentially leaves the driver in a partially updated state. Version
1160          * trauma will most likely occur if an client attempts to use any printer
1161          * bound to the driver. Perhaps a rewrite to make sure the moves can be
1162          * done is appropriate... later JRR
1163          */
1164
1165         DEBUG(5,("Moving files now !\n"));
1166
1167         if (driver->driver_path && strlen(driver->driver_path)) {
1168
1169                 err = move_driver_file_to_download_area(ctx,
1170                                                         conn,
1171                                                         driver->driver_path,
1172                                                         short_architecture,
1173                                                         driver->version,
1174                                                         ver);
1175                 if (!W_ERROR_IS_OK(err)) {
1176                         goto err_exit;
1177                 }
1178         }
1179
1180         if (driver->data_file && strlen(driver->data_file)) {
1181                 if (!strequal(driver->data_file, driver->driver_path)) {
1182
1183                         err = move_driver_file_to_download_area(ctx,
1184                                                                 conn,
1185                                                                 driver->data_file,
1186                                                                 short_architecture,
1187                                                                 driver->version,
1188                                                                 ver);
1189                         if (!W_ERROR_IS_OK(err)) {
1190                                 goto err_exit;
1191                         }
1192                 }
1193         }
1194
1195         if (driver->config_file && strlen(driver->config_file)) {
1196                 if (!strequal(driver->config_file, driver->driver_path) &&
1197                     !strequal(driver->config_file, driver->data_file)) {
1198
1199                         err = move_driver_file_to_download_area(ctx,
1200                                                                 conn,
1201                                                                 driver->config_file,
1202                                                                 short_architecture,
1203                                                                 driver->version,
1204                                                                 ver);
1205                         if (!W_ERROR_IS_OK(err)) {
1206                                 goto err_exit;
1207                         }
1208                 }
1209         }
1210
1211         if (driver->help_file && strlen(driver->help_file)) {
1212                 if (!strequal(driver->help_file, driver->driver_path) &&
1213                     !strequal(driver->help_file, driver->data_file) &&
1214                     !strequal(driver->help_file, driver->config_file)) {
1215
1216                         err = move_driver_file_to_download_area(ctx,
1217                                                                 conn,
1218                                                                 driver->help_file,
1219                                                                 short_architecture,
1220                                                                 driver->version,
1221                                                                 ver);
1222                         if (!W_ERROR_IS_OK(err)) {
1223                                 goto err_exit;
1224                         }
1225                 }
1226         }
1227
1228         if (driver->dependent_files && driver->dependent_files->string) {
1229                 for (i=0; driver->dependent_files->string[i]; i++) {
1230                         if (!strequal(driver->dependent_files->string[i], driver->driver_path) &&
1231                             !strequal(driver->dependent_files->string[i], driver->data_file) &&
1232                             !strequal(driver->dependent_files->string[i], driver->config_file) &&
1233                             !strequal(driver->dependent_files->string[i], driver->help_file)) {
1234                                 int j;
1235                                 for (j=0; j < i; j++) {
1236                                         if (strequal(driver->dependent_files->string[i], driver->dependent_files->string[j])) {
1237                                                 goto NextDriver;
1238                                         }
1239                                 }
1240
1241                                 err = move_driver_file_to_download_area(ctx,
1242                                                                         conn,
1243                                                                         driver->dependent_files->string[i],
1244                                                                         short_architecture,
1245                                                                         driver->version,
1246                                                                         ver);
1247                                 if (!W_ERROR_IS_OK(err)) {
1248                                         goto err_exit;
1249                                 }
1250                         }
1251                 NextDriver: ;
1252                 }
1253         }
1254
1255         err = WERR_OK;
1256  err_exit:
1257         unbecome_user();
1258  err_free_conn:
1259         TALLOC_FREE(smb_dname);
1260
1261         if (conn != NULL) {
1262                 vfs_ChDir(conn, oldcwd);
1263                 SMB_VFS_DISCONNECT(conn);
1264                 conn_free(conn);
1265         }
1266
1267         return err;
1268 }
1269
1270 /****************************************************************************
1271   Determine whether or not a particular driver is currently assigned
1272   to a printer
1273 ****************************************************************************/
1274
1275 bool printer_driver_in_use(TALLOC_CTX *mem_ctx,
1276                            struct dcerpc_binding_handle *b,
1277                            const struct spoolss_DriverInfo8 *r)
1278 {
1279         int snum;
1280         int n_services = lp_numservices();
1281         bool in_use = False;
1282         struct spoolss_PrinterInfo2 *pinfo2 = NULL;
1283         WERROR result;
1284
1285         if (!r) {
1286                 return false;
1287         }
1288
1289         DEBUG(10,("printer_driver_in_use: Beginning search through ntprinters.tdb...\n"));
1290
1291         /* loop through the printers.tdb and check for the drivername */
1292
1293         for (snum=0; snum<n_services && !in_use; snum++) {
1294                 if (!lp_snum_ok(snum) || !lp_printable(snum)) {
1295                         continue;
1296                 }
1297
1298                 result = winreg_get_printer(mem_ctx, b,
1299                                             lp_servicename(talloc_tos(), snum),
1300                                             &pinfo2);
1301                 if (!W_ERROR_IS_OK(result)) {
1302                         continue; /* skip */
1303                 }
1304
1305                 if (strequal(r->driver_name, pinfo2->drivername)) {
1306                         in_use = True;
1307                 }
1308
1309                 TALLOC_FREE(pinfo2);
1310         }
1311
1312         DEBUG(10,("printer_driver_in_use: Completed search through ntprinters.tdb...\n"));
1313
1314         if ( in_use ) {
1315                 struct spoolss_DriverInfo8 *driver = NULL;
1316                 WERROR werr;
1317
1318                 DEBUG(5,("printer_driver_in_use: driver \"%s\" is currently in use\n", r->driver_name));
1319
1320                 /* we can still remove the driver if there is one of
1321                    "Windows NT x86" version 2 or 3 left */
1322
1323                 if (!strequal("Windows NT x86", r->architecture)) {
1324                         werr = winreg_get_driver(mem_ctx, b,
1325                                                  "Windows NT x86",
1326                                                  r->driver_name,
1327                                                  DRIVER_ANY_VERSION,
1328                                                  &driver);
1329                 } else if (r->version == 2) {
1330                         werr = winreg_get_driver(mem_ctx, b,
1331                                                  "Windows NT x86",
1332                                                  r->driver_name,
1333                                                  3, &driver);
1334                 } else if (r->version == 3) {
1335                         werr = winreg_get_driver(mem_ctx, b,
1336                                                  "Windows NT x86",
1337                                                  r->driver_name,
1338                                                  2, &driver);
1339                 } else {
1340                         DEBUG(0, ("printer_driver_in_use: ERROR!"
1341                                   " unknown driver version (%d)\n",
1342                                   r->version));
1343                         werr = WERR_UNKNOWN_PRINTER_DRIVER;
1344                 }
1345
1346                 /* now check the error code */
1347
1348                 if ( W_ERROR_IS_OK(werr) ) {
1349                         /* it's ok to remove the driver, we have other architctures left */
1350                         in_use = False;
1351                         talloc_free(driver);
1352                 }
1353         }
1354
1355         /* report that the driver is not in use by default */
1356
1357         return in_use;
1358 }
1359
1360
1361 /**********************************************************************
1362  Check to see if a ogiven file is in use by *info
1363  *********************************************************************/
1364
1365 static bool drv_file_in_use(const char *file, const struct spoolss_DriverInfo8 *info)
1366 {
1367         int i = 0;
1368
1369         if ( !info )
1370                 return False;
1371
1372         /* mz: skip files that are in the list but already deleted */
1373         if (!file || !file[0]) {
1374                 return false;
1375         }
1376
1377         if (strequal(file, info->driver_path))
1378                 return True;
1379
1380         if (strequal(file, info->data_file))
1381                 return True;
1382
1383         if (strequal(file, info->config_file))
1384                 return True;
1385
1386         if (strequal(file, info->help_file))
1387                 return True;
1388
1389         /* see of there are any dependent files to examine */
1390
1391         if (!info->dependent_files)
1392                 return False;
1393
1394         while (info->dependent_files[i] && *info->dependent_files[i]) {
1395                 if (strequal(file, info->dependent_files[i]))
1396                         return True;
1397                 i++;
1398         }
1399
1400         return False;
1401
1402 }
1403
1404 /**********************************************************************
1405  Utility function to remove the dependent file pointed to by the
1406  input parameter from the list
1407  *********************************************************************/
1408
1409 static void trim_dependent_file(TALLOC_CTX *mem_ctx, const char **files, int idx)
1410 {
1411
1412         /* bump everything down a slot */
1413
1414         while (files && files[idx+1]) {
1415                 files[idx] = talloc_strdup(mem_ctx, files[idx+1]);
1416                 idx++;
1417         }
1418
1419         files[idx] = NULL;
1420
1421         return;
1422 }
1423
1424 /**********************************************************************
1425  Check if any of the files used by src are also used by drv
1426  *********************************************************************/
1427
1428 static bool trim_overlap_drv_files(TALLOC_CTX *mem_ctx,
1429                                    struct spoolss_DriverInfo8 *src,
1430                                    const struct spoolss_DriverInfo8 *drv)
1431 {
1432         bool    in_use = False;
1433         int     i = 0;
1434
1435         if ( !src || !drv )
1436                 return False;
1437
1438         /* check each file.  Remove it from the src structure if it overlaps */
1439
1440         if (drv_file_in_use(src->driver_path, drv)) {
1441                 in_use = True;
1442                 DEBUG(10,("Removing driverfile [%s] from list\n", src->driver_path));
1443                 src->driver_path = talloc_strdup(mem_ctx, "");
1444                 if (!src->driver_path) { return false; }
1445         }
1446
1447         if (drv_file_in_use(src->data_file, drv)) {
1448                 in_use = True;
1449                 DEBUG(10,("Removing datafile [%s] from list\n", src->data_file));
1450                 src->data_file = talloc_strdup(mem_ctx, "");
1451                 if (!src->data_file) { return false; }
1452         }
1453
1454         if (drv_file_in_use(src->config_file, drv)) {
1455                 in_use = True;
1456                 DEBUG(10,("Removing configfile [%s] from list\n", src->config_file));
1457                 src->config_file = talloc_strdup(mem_ctx, "");
1458                 if (!src->config_file) { return false; }
1459         }
1460
1461         if (drv_file_in_use(src->help_file, drv)) {
1462                 in_use = True;
1463                 DEBUG(10,("Removing helpfile [%s] from list\n", src->help_file));
1464                 src->help_file = talloc_strdup(mem_ctx, "");
1465                 if (!src->help_file) { return false; }
1466         }
1467
1468         /* are there any dependentfiles to examine? */
1469
1470         if (!src->dependent_files)
1471                 return in_use;
1472
1473         while (src->dependent_files[i] && *src->dependent_files[i]) {
1474                 if (drv_file_in_use(src->dependent_files[i], drv)) {
1475                         in_use = True;
1476                         DEBUG(10,("Removing [%s] from dependent file list\n", src->dependent_files[i]));
1477                         trim_dependent_file(mem_ctx, src->dependent_files, i);
1478                 } else
1479                         i++;
1480         }
1481
1482         return in_use;
1483 }
1484
1485 /****************************************************************************
1486   Determine whether or not a particular driver files are currently being
1487   used by any other driver.
1488
1489   Return value is True if any files were in use by other drivers
1490   and False otherwise.
1491
1492   Upon return, *info has been modified to only contain the driver files
1493   which are not in use
1494
1495   Fix from mz:
1496
1497   This needs to check all drivers to ensure that all files in use
1498   have been removed from *info, not just the ones in the first
1499   match.
1500 ****************************************************************************/
1501
1502 bool printer_driver_files_in_use(TALLOC_CTX *mem_ctx,
1503                                  struct dcerpc_binding_handle *b,
1504                                  struct spoolss_DriverInfo8 *info)
1505 {
1506         int                             i;
1507         uint32_t                                version;
1508         struct spoolss_DriverInfo8      *driver;
1509         bool in_use = false;
1510         uint32_t num_drivers;
1511         const char **drivers;
1512         WERROR result;
1513
1514         if ( !info )
1515                 return False;
1516
1517         version = info->version;
1518
1519         /* loop over all driver versions */
1520
1521         DEBUG(5,("printer_driver_files_in_use: Beginning search of drivers...\n"));
1522
1523         /* get the list of drivers */
1524
1525         result = winreg_get_driver_list(mem_ctx, b,
1526                                         info->architecture, version,
1527                                         &num_drivers, &drivers);
1528         if (!W_ERROR_IS_OK(result)) {
1529                 return true;
1530         }
1531
1532         DEBUGADD(4, ("we have:[%d] drivers in environment [%s] and version [%d]\n",
1533                      num_drivers, info->architecture, version));
1534
1535         /* check each driver for overlap in files */
1536
1537         for (i = 0; i < num_drivers; i++) {
1538                 DEBUGADD(5,("\tdriver: [%s]\n", drivers[i]));
1539
1540                 driver = NULL;
1541
1542                 result = winreg_get_driver(mem_ctx, b,
1543                                            info->architecture, drivers[i],
1544                                            version, &driver);
1545                 if (!W_ERROR_IS_OK(result)) {
1546                         talloc_free(drivers);
1547                         return True;
1548                 }
1549
1550                 /* check if d2 uses any files from d1 */
1551                 /* only if this is a different driver than the one being deleted */
1552
1553                 if (!strequal(info->driver_name, driver->driver_name)) {
1554                         if (trim_overlap_drv_files(mem_ctx, info, driver)) {
1555                                 /* mz: Do not instantly return -
1556                                  * we need to ensure this file isn't
1557                                  * also in use by other drivers. */
1558                                 in_use = true;
1559                         }
1560                 }
1561
1562                 talloc_free(driver);
1563         }
1564
1565         talloc_free(drivers);
1566
1567         DEBUG(5,("printer_driver_files_in_use: Completed search of drivers...\n"));
1568
1569         return in_use;
1570 }
1571
1572 static NTSTATUS driver_unlink_internals(connection_struct *conn,
1573                                         const char *short_arch,
1574                                         int vers,
1575                                         const char *fname)
1576 {
1577         TALLOC_CTX *tmp_ctx = talloc_new(conn);
1578         struct smb_filename *smb_fname = NULL;
1579         char *print_dlr_path;
1580         NTSTATUS status = NT_STATUS_NO_MEMORY;
1581
1582         print_dlr_path = talloc_asprintf(tmp_ctx, "%s/%d/%s",
1583                                          short_arch, vers, fname);
1584         if (print_dlr_path == NULL) {
1585                 goto err_out;
1586         }
1587
1588         smb_fname = synthetic_smb_fname(tmp_ctx, print_dlr_path, NULL, NULL);
1589         if (smb_fname == NULL) {
1590                 goto err_out;
1591         }
1592
1593         status = unlink_internals(conn, NULL, 0, smb_fname, false);
1594 err_out:
1595         talloc_free(tmp_ctx);
1596         return status;
1597 }
1598
1599 /****************************************************************************
1600   Actually delete the driver files.  Make sure that
1601   printer_driver_files_in_use() return False before calling
1602   this.
1603 ****************************************************************************/
1604
1605 bool delete_driver_files(const struct auth_session_info *session_info,
1606                          const struct spoolss_DriverInfo8 *r)
1607 {
1608         const char *short_arch;
1609         connection_struct *conn;
1610         NTSTATUS nt_status;
1611         char *oldcwd;
1612         char *printdollar = NULL;
1613         int printdollar_snum;
1614         bool ret = false;
1615
1616         if (!r) {
1617                 return false;
1618         }
1619
1620         DEBUG(6,("delete_driver_files: deleting driver [%s] - version [%d]\n",
1621                 r->driver_name, r->version));
1622
1623         printdollar_snum = find_service(talloc_tos(), "print$", &printdollar);
1624         if (!printdollar) {
1625                 return false;
1626         }
1627         if (printdollar_snum == -1) {
1628                 return false;
1629         }
1630
1631         nt_status = create_conn_struct_cwd(talloc_tos(),
1632                                            server_event_context(),
1633                                            server_messaging_context(),
1634                                            &conn,
1635                                            printdollar_snum,
1636                                            lp_path(talloc_tos(), printdollar_snum),
1637                                            session_info, &oldcwd);
1638         if (!NT_STATUS_IS_OK(nt_status)) {
1639                 DEBUG(0,("delete_driver_files: create_conn_struct "
1640                          "returned %s\n", nt_errstr(nt_status)));
1641                 return false;
1642         }
1643
1644         nt_status = set_conn_force_user_group(conn, printdollar_snum);
1645         if (!NT_STATUS_IS_OK(nt_status)) {
1646                 DEBUG(0, ("failed set force user / group\n"));
1647                 ret = false;
1648                 goto err_free_conn;
1649         }
1650
1651         if (!become_user_by_session(conn, session_info)) {
1652                 DEBUG(0, ("failed to become user\n"));
1653                 ret = false;
1654                 goto err_free_conn;
1655         }
1656
1657         if ( !CAN_WRITE(conn) ) {
1658                 DEBUG(3,("delete_driver_files: Cannot delete print driver when [print$] is read-only\n"));
1659                 ret = false;
1660                 goto err_out;
1661         }
1662
1663         short_arch = get_short_archi(r->architecture);
1664         if (short_arch == NULL) {
1665                 DEBUG(0, ("bad architecture %s\n", r->architecture));
1666                 ret = false;
1667                 goto err_out;
1668         }
1669
1670         /* now delete the files */
1671
1672         if (r->driver_path && r->driver_path[0]) {
1673                 DEBUG(10,("deleting driverfile [%s]\n", r->driver_path));
1674                 driver_unlink_internals(conn, short_arch, r->version, r->driver_path);
1675         }
1676
1677         if (r->config_file && r->config_file[0]) {
1678                 DEBUG(10,("deleting configfile [%s]\n", r->config_file));
1679                 driver_unlink_internals(conn, short_arch, r->version, r->config_file);
1680         }
1681
1682         if (r->data_file && r->data_file[0]) {
1683                 DEBUG(10,("deleting datafile [%s]\n", r->data_file));
1684                 driver_unlink_internals(conn, short_arch, r->version, r->data_file);
1685         }
1686
1687         if (r->help_file && r->help_file[0]) {
1688                 DEBUG(10,("deleting helpfile [%s]\n", r->help_file));
1689                 driver_unlink_internals(conn, short_arch, r->version, r->help_file);
1690         }
1691
1692         if (r->dependent_files) {
1693                 int i = 0;
1694                 while (r->dependent_files[i] && r->dependent_files[i][0]) {
1695                         DEBUG(10,("deleting dependent file [%s]\n", r->dependent_files[i]));
1696                         driver_unlink_internals(conn, short_arch, r->version, r->dependent_files[i]);
1697                         i++;
1698                 }
1699         }
1700
1701         ret = true;
1702  err_out:
1703         unbecome_user();
1704  err_free_conn:
1705         if (conn != NULL) {
1706                 vfs_ChDir(conn, oldcwd);
1707                 SMB_VFS_DISCONNECT(conn);
1708                 conn_free(conn);
1709         }
1710         return ret;
1711 }
1712
1713 /* error code:
1714         0: everything OK
1715         1: level not implemented
1716         2: file doesn't exist
1717         3: can't allocate memory
1718         4: can't free memory
1719         5: non existent struct
1720 */
1721
1722 /*
1723         A printer and a printer driver are 2 different things.
1724         NT manages them separatelly, Samba does the same.
1725         Why ? Simply because it's easier and it makes sense !
1726
1727         Now explanation: You have 3 printers behind your samba server,
1728         2 of them are the same make and model (laser A and B). But laser B
1729         has an 3000 sheet feeder and laser A doesn't such an option.
1730         Your third printer is an old dot-matrix model for the accounting :-).
1731
1732         If the /usr/local/samba/lib directory (default dir), you will have
1733         5 files to describe all of this.
1734
1735         3 files for the printers (1 by printer):
1736                 NTprinter_laser A
1737                 NTprinter_laser B
1738                 NTprinter_accounting
1739         2 files for the drivers (1 for the laser and 1 for the dot matrix)
1740                 NTdriver_printer model X
1741                 NTdriver_printer model Y
1742
1743 jfm: I should use this comment for the text file to explain
1744         same thing for the forms BTW.
1745         Je devrais mettre mes commentaires en francais, ca serait mieux :-)
1746
1747 */
1748
1749 /* Convert generic access rights to printer object specific access rights.
1750    It turns out that NT4 security descriptors use generic access rights and
1751    NT5 the object specific ones. */
1752
1753 void map_printer_permissions(struct security_descriptor *sd)
1754 {
1755         int i;
1756
1757         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
1758                 se_map_generic(&sd->dacl->aces[i].access_mask,
1759                                &printer_generic_mapping);
1760         }
1761 }
1762
1763 void map_job_permissions(struct security_descriptor *sd)
1764 {
1765         int i;
1766
1767         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
1768                 se_map_generic(&sd->dacl->aces[i].access_mask,
1769                                &job_generic_mapping);
1770         }
1771 }
1772
1773
1774 /****************************************************************************
1775  Check a user has permissions to perform the given operation.  We use the
1776  permission constants defined in include/rpc_spoolss.h to check the various
1777  actions we perform when checking printer access.
1778
1779    PRINTER_ACCESS_ADMINISTER:
1780        print_queue_pause, print_queue_resume, update_printer_sec,
1781        update_printer, spoolss_addprinterex_level_2,
1782        _spoolss_setprinterdata
1783
1784    PRINTER_ACCESS_USE:
1785        print_job_start
1786
1787    JOB_ACCESS_ADMINISTER:
1788        print_job_delete, print_job_pause, print_job_resume,
1789        print_queue_purge
1790
1791   Try access control in the following order (for performance reasons):
1792     1)  root and SE_PRINT_OPERATOR can do anything (easy check)
1793     2)  check security descriptor (bit comparisons in memory)
1794     3)  "printer admins" (may result in numerous calls to winbind)
1795
1796  ****************************************************************************/
1797 WERROR print_access_check(const struct auth_session_info *session_info,
1798                           struct messaging_context *msg_ctx, int snum,
1799                           int access_type)
1800 {
1801         struct spoolss_security_descriptor *secdesc = NULL;
1802         uint32_t access_granted;
1803         size_t sd_size;
1804         NTSTATUS status;
1805         WERROR result;
1806         const char *pname;
1807         TALLOC_CTX *mem_ctx = NULL;
1808
1809         /* If user is NULL then use the current_user structure */
1810
1811         /* Always allow root or SE_PRINT_OPERATROR to do anything */
1812
1813         if ((session_info->unix_token->uid == sec_initial_uid())
1814             || security_token_has_privilege(session_info->security_token,
1815                                             SEC_PRIV_PRINT_OPERATOR)) {
1816                 return WERR_OK;
1817         }
1818
1819         /* Get printer name */
1820
1821         pname = lp_printername(talloc_tos(), snum);
1822
1823         if (!pname || !*pname) {
1824                 return WERR_ACCESS_DENIED;
1825         }
1826
1827         /* Get printer security descriptor */
1828
1829         if(!(mem_ctx = talloc_init("print_access_check"))) {
1830                 return WERR_NOMEM;
1831         }
1832
1833         result = winreg_get_printer_secdesc_internal(mem_ctx,
1834                                             get_session_info_system(),
1835                                             msg_ctx,
1836                                             pname,
1837                                             &secdesc);
1838         if (!W_ERROR_IS_OK(result)) {
1839                 talloc_destroy(mem_ctx);
1840                 return WERR_NOMEM;
1841         }
1842
1843         if (access_type == JOB_ACCESS_ADMINISTER) {
1844                 struct spoolss_security_descriptor *parent_secdesc = secdesc;
1845
1846                 /* Create a child security descriptor to check permissions
1847                    against.  This is because print jobs are child objects
1848                    objects of a printer. */
1849                 status = se_create_child_secdesc(mem_ctx,
1850                                                  &secdesc,
1851                                                  &sd_size,
1852                                                  parent_secdesc,
1853                                                  parent_secdesc->owner_sid,
1854                                                  parent_secdesc->group_sid,
1855                                                  false);
1856                 if (!NT_STATUS_IS_OK(status)) {
1857                         talloc_destroy(mem_ctx);
1858                         return ntstatus_to_werror(status);
1859                 }
1860
1861                 map_job_permissions(secdesc);
1862         } else {
1863                 map_printer_permissions(secdesc);
1864         }
1865
1866         /* Check access */
1867         status = se_access_check(secdesc, session_info->security_token, access_type,
1868                                  &access_granted);
1869
1870         DEBUG(4, ("access check was %s\n", NT_STATUS_IS_OK(status) ? "SUCCESS" : "FAILURE"));
1871
1872         talloc_destroy(mem_ctx);
1873
1874         return ntstatus_to_werror(status);
1875 }
1876
1877 /****************************************************************************
1878  Check the time parameters allow a print operation.
1879 *****************************************************************************/
1880
1881 bool print_time_access_check(const struct auth_session_info *session_info,
1882                              struct messaging_context *msg_ctx,
1883                              const char *servicename)
1884 {
1885         struct spoolss_PrinterInfo2 *pinfo2 = NULL;
1886         WERROR result;
1887         bool ok = False;
1888         time_t now = time(NULL);
1889         struct tm *t;
1890         uint32_t mins;
1891
1892         result = winreg_get_printer_internal(NULL, session_info, msg_ctx,
1893                                     servicename, &pinfo2);
1894         if (!W_ERROR_IS_OK(result)) {
1895                 return False;
1896         }
1897
1898         if (pinfo2->starttime == 0 && pinfo2->untiltime == 0) {
1899                 ok = True;
1900         }
1901
1902         t = gmtime(&now);
1903         mins = (uint32_t)t->tm_hour*60 + (uint32)t->tm_min;
1904
1905         if (mins >= pinfo2->starttime && mins <= pinfo2->untiltime) {
1906                 ok = True;
1907         }
1908
1909         TALLOC_FREE(pinfo2);
1910
1911         if (!ok) {
1912                 errno = EACCES;
1913         }
1914
1915         return ok;
1916 }
1917
1918 void nt_printer_remove(TALLOC_CTX *mem_ctx,
1919                         const struct auth_session_info *session_info,
1920                         struct messaging_context *msg_ctx,
1921                         const char *printer)
1922 {
1923         WERROR result;
1924
1925         result = winreg_delete_printer_key_internal(mem_ctx, session_info, msg_ctx,
1926                                            printer, "");
1927         if (!W_ERROR_IS_OK(result)) {
1928                 DEBUG(0, ("nt_printer_remove: failed to remove printer %s: "
1929                 "%s\n", printer, win_errstr(result)));
1930         }
1931 }
1932
1933 void nt_printer_add(TALLOC_CTX *mem_ctx,
1934                     const struct auth_session_info *session_info,
1935                     struct messaging_context *msg_ctx,
1936                     const char *printer)
1937 {
1938         WERROR result;
1939
1940         result = winreg_create_printer_internal(mem_ctx, session_info, msg_ctx,
1941                                                 printer);
1942         if (!W_ERROR_IS_OK(result)) {
1943                 DEBUG(0, ("nt_printer_add: failed to add printer %s: %s\n",
1944                           printer, win_errstr(result)));
1945         }
1946 }