source4/smbd/trans2.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    transaction2 handling
   4    Copyright (C) Andrew Tridgell 2003
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20 /*
  21    This file handles the parsing of transact2 requests
  22 */
  23
  24 #include "includes.h"
  25
  26
  27 #define CHECK_MIN_BLOB_SIZE(blob, size) do { \
  28         if ((blob)->length < (size)) { \
  29                 return NT_STATUS_INFO_LENGTH_MISMATCH; \
  30         }} while (0)
  31
  32 /* grow the data allocation size of a trans2 reply - this guarantees
  33    that requests to grow the data size later will not change the
  34    pointer */
  35 static void trans2_grow_data_allocation(struct request_context *req,
  36                                         struct smb_trans2 *trans,
  37                                         uint16 new_size)
  38 {
  39         if (new_size <= trans->out.data.length) {
  40                 return;
  41         }
  42         trans->out.data.data = talloc_realloc(req->mem_ctx, trans->out.data.data, new_size);
  43 }
  44
  45
  46 /* grow the data size of a trans2 reply */
  47 static void trans2_grow_data(struct request_context *req,
  48                              struct smb_trans2 *trans,
  49                              uint16 new_size)
  50 {
  51         trans2_grow_data_allocation(req, trans, new_size);
  52         trans->out.data.length = new_size;
  53 }
  54
  55 /* grow the data, zero filling any new bytes */
  56 static void trans2_grow_data_fill(struct request_context *req,
  57                                   struct smb_trans2 *trans,
  58                                   uint16 new_size)
  59 {
  60         uint16 old_size = trans->out.data.length;
  61         trans2_grow_data(req, trans, new_size);
  62         if (new_size > old_size) {
  63                 memset(trans->out.data.data + old_size, 0, new_size - old_size);
  64         }
  65 }
  66
  67
  68 /* setup a trans2 reply, given the data and params sizes */
  69 static void trans2_setup_reply(struct request_context *req,
  70                                struct smb_trans2 *trans,
  71                                uint16 param_size, uint16 data_size,
  72                                uint16 setup_count)
  73 {
  74         trans->out.setup_count = setup_count;
  75         if (setup_count != 0) {
  76                 trans->out.setup = talloc_zero(req->mem_ctx, sizeof(uint16) * setup_count);
  77         }
  78         trans->out.params = data_blob_talloc(req->mem_ctx, NULL, param_size);
  79         trans->out.data = data_blob_talloc(req->mem_ctx, NULL, data_size);
  80 }
  81
  82
  83 /*
  84   pull a string from a blob in a trans2 request
  85 */
  86 static size_t trans2_pull_blob_string(struct request_context *req,
  87                                       const DATA_BLOB *blob,
  88                                       uint16 offset,
  89                                       const char **str,
  90                                       int flags)
  91 {
  92         /* we use STR_NO_RANGE_CHECK because the params are allocated
  93            separately in a DATA_BLOB, so we need to do our own range
  94            checking */
  95         if (offset >= blob->length) {
  96                 *str = NULL;
  97                 return 0;
  98         }
  99
 100         return req_pull_string(req, str,
 101                                blob->data + offset,
 102                                blob->length - offset,
 103                                STR_NO_RANGE_CHECK | flags);
 104 }
 105
 106 /*
 107   push a string into the data section of a trans2 request
 108   return the number of bytes consumed in the output
 109 */
 110 static size_t trans2_push_data_string(struct request_context *req,
 111                                       struct smb_trans2 *trans,
 112                                       uint16 len_offset,
 113                                       uint16 offset,
 114                                       const WIRE_STRING *str,
 115                                       int dest_len,
 116                                       int flags)
 117 {
 118         int alignment = 0, ret = 0, pkt_len;
 119
 120         /* we use STR_NO_RANGE_CHECK because the params are allocated
 121            separately in a DATA_BLOB, so we need to do our own range
 122            checking */
 123         if (!str->s || offset >= trans->out.data.length) {
 124                 if (flags & STR_LEN8BIT) {
 125                         SCVAL(trans->out.data.data, len_offset, 0);
 126                 } else {
 127                         SIVAL(trans->out.data.data, len_offset, 0);
 128                 }
 129                 return 0;
 130         }
 131
 132         flags |= STR_NO_RANGE_CHECK;
 133
 134         if (dest_len == -1 || (dest_len > trans->out.data.length - offset)) {
 135                 dest_len = trans->out.data.length - offset;
 136         }
 137
 138         if (!(flags & (STR_ASCII|STR_UNICODE))) {
 139                 flags |= (req->flags2 & FLAGS2_UNICODE_STRINGS) ? STR_UNICODE : STR_ASCII;
 140         }
 141
 142         if ((offset&1) && (flags & STR_UNICODE) && !(flags & STR_NOALIGN)) {
 143                 alignment = 1;
 144                 if (dest_len > 0) {
 145                         SCVAL(trans->out.data.data + offset, 0, 0);
 146                         ret = push_string(NULL, trans->out.data.data + offset + 1, str->s, dest_len-1, flags);
 147                 }
 148         } else {
 149                 ret = push_string(NULL, trans->out.data.data + offset, str->s, dest_len, flags);
 150         }
 151
 152         /* sometimes the string needs to be terminated, but the length
 153            on the wire must not include the termination! */
 154         pkt_len = ret;
 155
 156         if ((flags & STR_LEN_NOTERM) && (flags & STR_TERMINATE)) {
 157                 if ((flags & STR_UNICODE) && ret >= 2) {
 158                         pkt_len = ret-2;
 159                 }
 160                 if ((flags & STR_ASCII) && ret >= 1) {
 161                         pkt_len = ret-1;
 162                 }
 163         }
 164
 165         if (flags & STR_LEN8BIT) {
 166                 SCVAL(trans->out.data.data, len_offset, pkt_len);
 167         } else {
 168                 SIVAL(trans->out.data.data, len_offset, pkt_len);
 169         }
 170
 171         return ret + alignment;
 172 }
 173
 174 /*
 175   append a string to the data section of a trans2 reply
 176   len_offset points to the place in the packet where the length field
 177   should go
 178 */
 179 static void trans2_append_data_string(struct request_context *req,
 180                                         struct smb_trans2 *trans,
 181                                         const WIRE_STRING *str,
 182                                         uint_t len_offset,
 183                                         int flags)
 184 {
 185         size_t ret;
 186         uint16 offset;
 187         const int max_bytes_per_char = 3;
 188
 189         offset = trans->out.data.length;
 190         trans2_grow_data(req, trans, offset + (2+strlen(str->s))*max_bytes_per_char);
 191         ret = trans2_push_data_string(req, trans, len_offset, offset, str, -1, flags);
 192         trans2_grow_data(req, trans, offset + ret);
 193 }
 194
 195
 196 /*
 197   trans2 qfsinfo implementation
 198 */
 199 static NTSTATUS trans2_qfsinfo(struct request_context *req, struct smb_trans2 *trans)
 200 {
 201         union smb_fsinfo fsinfo;
 202         NTSTATUS status;
 203         uint16 level;
 204         uint_t i;
 205
 206         /* make sure we got enough parameters */
 207         if (trans->in.params.length != 2) {
 208                 return NT_STATUS_FOOBAR;
 209         }
 210
 211         level = SVAL(trans->in.params.data, 0);
 212
 213         switch (level) {
 214         case SMB_QFS_ALLOCATION:
 215                 fsinfo.allocation.level = RAW_QFS_ALLOCATION;
 216
 217                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 218                 if (!NT_STATUS_IS_OK(status)) {
 219                         return status;
 220                 }
 221
 222                 trans2_setup_reply(req, trans, 0, 18, 0);
 223
 224                 SIVAL(trans->out.data.data,  0, fsinfo.allocation.out.fs_id);
 225                 SIVAL(trans->out.data.data,  4, fsinfo.allocation.out.sectors_per_unit);
 226                 SIVAL(trans->out.data.data,  8, fsinfo.allocation.out.total_alloc_units);
 227                 SIVAL(trans->out.data.data, 12, fsinfo.allocation.out.avail_alloc_units);
 228                 SSVAL(trans->out.data.data, 16, fsinfo.allocation.out.bytes_per_sector);
 229
 230                 return NT_STATUS_OK;
 231
 232         case SMB_QFS_VOLUME:
 233                 fsinfo.volume.level = RAW_QFS_VOLUME;
 234
 235                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 236                 if (!NT_STATUS_IS_OK(status)) {
 237                         return status;
 238                 }
 239
 240                 trans2_setup_reply(req, trans, 0, 5, 0);
 241
 242                 SIVAL(trans->out.data.data,       0, fsinfo.volume.out.serial_number);
 243                 /* w2k3 implements this incorrectly for unicode - it
 244                  * leaves the last byte off the string */
 245                 trans2_append_data_string(req, trans,
 246                                           &fsinfo.volume.out.volume_name,
 247                                           4, STR_LEN8BIT|STR_NOALIGN);
 248
 249                 return NT_STATUS_OK;
 250
 251         case SMB_QFS_VOLUME_INFO:
 252         case SMB_QFS_VOLUME_INFORMATION:
 253                 fsinfo.volume_info.level = RAW_QFS_VOLUME_INFO;
 254
 255                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 256                 if (!NT_STATUS_IS_OK(status)) {
 257                         return status;
 258                 }
 259
 260                 trans2_setup_reply(req, trans, 0, 18, 0);
 261
 262                 push_nttime(trans->out.data.data, 0, &fsinfo.volume_info.out.create_time);
 263                 SIVAL(trans->out.data.data,       8, fsinfo.volume_info.out.serial_number);
 264                 trans2_append_data_string(req, trans,
 265                                           &fsinfo.volume_info.out.volume_name,
 266                                           12, STR_UNICODE);
 267
 268                 return NT_STATUS_OK;
 269
 270         case SMB_QFS_SIZE_INFO:
 271         case SMB_QFS_SIZE_INFORMATION:
 272                 fsinfo.size_info.level = RAW_QFS_SIZE_INFO;
 273
 274                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 275                 if (!NT_STATUS_IS_OK(status)) {
 276                         return status;
 277                 }
 278
 279                 trans2_setup_reply(req, trans, 0, 24, 0);
 280
 281                 SBVAL(trans->out.data.data,  0, fsinfo.size_info.out.total_alloc_units);
 282                 SBVAL(trans->out.data.data,  8, fsinfo.size_info.out.avail_alloc_units);
 283                 SIVAL(trans->out.data.data, 16, fsinfo.size_info.out.sectors_per_unit);
 284                 SIVAL(trans->out.data.data, 20, fsinfo.size_info.out.bytes_per_sector);
 285
 286                 return NT_STATUS_OK;
 287
 288         case SMB_QFS_DEVICE_INFO:
 289         case SMB_QFS_DEVICE_INFORMATION:
 290                 fsinfo.device_info.level = RAW_QFS_DEVICE_INFO;
 291
 292                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 293                 if (!NT_STATUS_IS_OK(status)) {
 294                         return status;
 295                 }
 296                 trans2_setup_reply(req, trans, 0, 8, 0);
 297                 SIVAL(trans->out.data.data,      0, fsinfo.device_info.out.device_type);
 298                 SIVAL(trans->out.data.data,      4, fsinfo.device_info.out.characteristics);
 299                 return NT_STATUS_OK;
 300
 301
 302         case SMB_QFS_ATTRIBUTE_INFO:
 303         case SMB_QFS_ATTRIBUTE_INFORMATION:
 304                 fsinfo.attribute_info.level = RAW_QFS_ATTRIBUTE_INFO;
 305
 306                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 307                 if (!NT_STATUS_IS_OK(status)) {
 308                         return status;
 309                 }
 310
 311                 trans2_setup_reply(req, trans, 0, 12, 0);
 312
 313                 SIVAL(trans->out.data.data, 0, fsinfo.attribute_info.out.fs_attr);
 314                 SIVAL(trans->out.data.data, 4, fsinfo.attribute_info.out.max_file_component_length);
 315                 /* this must not be null terminated or win98 gets
 316                    confused!  also note that w2k3 returns this as
 317                    unicode even when ascii is negotiated */
 318                 trans2_append_data_string(req, trans,
 319                                           &fsinfo.attribute_info.out.fs_type,
 320                                           8, STR_UNICODE);
 321                 return NT_STATUS_OK;
 322
 323
 324         case SMB_QFS_QUOTA_INFORMATION:
 325                 fsinfo.quota_information.level = RAW_QFS_QUOTA_INFORMATION;
 326
 327                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 328                 if (!NT_STATUS_IS_OK(status)) {
 329                         return status;
 330                 }
 331
 332                 trans2_setup_reply(req, trans, 0, 48, 0);
 333
 334                 SBVAL(trans->out.data.data,   0, fsinfo.quota_information.out.unknown[0]);
 335                 SBVAL(trans->out.data.data,   8, fsinfo.quota_information.out.unknown[1]);
 336                 SBVAL(trans->out.data.data,  16, fsinfo.quota_information.out.unknown[2]);
 337                 SBVAL(trans->out.data.data,  24, fsinfo.quota_information.out.quota_soft);
 338                 SBVAL(trans->out.data.data,  32, fsinfo.quota_information.out.quota_hard);
 339                 SBVAL(trans->out.data.data,  40, fsinfo.quota_information.out.quota_flags);
 340
 341                 return NT_STATUS_OK;
 342
 343
 344         case SMB_QFS_FULL_SIZE_INFORMATION:
 345                 fsinfo.full_size_information.level = RAW_QFS_FULL_SIZE_INFORMATION;
 346
 347                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 348                 if (!NT_STATUS_IS_OK(status)) {
 349                         return status;
 350                 }
 351
 352                 trans2_setup_reply(req, trans, 0, 32, 0);
 353
 354                 SBVAL(trans->out.data.data,  0, fsinfo.full_size_information.out.total_alloc_units);
 355                 SBVAL(trans->out.data.data,  8, fsinfo.full_size_information.out.call_avail_alloc_units);
 356                 SBVAL(trans->out.data.data, 16, fsinfo.full_size_information.out.actual_avail_alloc_units);
 357                 SIVAL(trans->out.data.data, 24, fsinfo.full_size_information.out.sectors_per_unit);
 358                 SIVAL(trans->out.data.data, 28, fsinfo.full_size_information.out.bytes_per_sector);
 359
 360                 return NT_STATUS_OK;
 361
 362         case SMB_QFS_OBJECTID_INFORMATION:
 363                 fsinfo.objectid_information.level = RAW_QFS_OBJECTID_INFORMATION;
 364
 365                 status = req->conn->ntvfs_ops->fsinfo(req, &fsinfo);
 366                 if (!NT_STATUS_IS_OK(status)) {
 367                         return status;
 368                 }
 369
 370                 trans2_setup_reply(req, trans, 0, 64, 0);
 371
 372                 memcpy(trans->out.data.data, fsinfo.objectid_information.out.guid.info, GUID_SIZE);
 373                 for (i=0;i<6;i++) {
 374                         SBVAL(trans->out.data.data, 16 + 8*i, fsinfo.objectid_information.out.unknown[i]);
 375                 }
 376                 return NT_STATUS_OK;
 377         }
 378
 379         return NT_STATUS_INVALID_LEVEL;
 380 }
 381
 382 /*
 383   fill in the reply from a qpathinfo or qfileinfo call
 384 */
 385 static NTSTATUS trans2_fileinfo_fill(struct request_context *req, struct smb_trans2 *trans,
 386                                      union smb_fileinfo *st)
 387 {
 388         uint_t i;
 389
 390         switch (st->generic.level) {
 391         case RAW_FILEINFO_GENERIC:
 392         case RAW_FILEINFO_GETATTR:
 393         case RAW_FILEINFO_GETATTRE:
 394                 /* handled elsewhere */
 395                 return NT_STATUS_INVALID_LEVEL;
 396
 397         case RAW_FILEINFO_BASIC_INFO:
 398         case RAW_FILEINFO_BASIC_INFORMATION:
 399                 trans2_setup_reply(req, trans, 2, 40, 0);
 400
 401                 SSVAL(trans->out.params.data, 0, 0);
 402                 push_nttime(trans->out.data.data,  0, &st->basic_info.out.create_time);
 403                 push_nttime(trans->out.data.data,  8, &st->basic_info.out.access_time);
 404                 push_nttime(trans->out.data.data, 16, &st->basic_info.out.write_time);
 405                 push_nttime(trans->out.data.data, 24, &st->basic_info.out.change_time);
 406                 SIVAL(trans->out.data.data,       32, st->basic_info.out.attrib);
 407                 SIVAL(trans->out.data.data,       36, 0); /* padding */
 408                 return NT_STATUS_OK;
 409
 410         case RAW_FILEINFO_STANDARD:
 411                 trans2_setup_reply(req, trans, 2, 22, 0);
 412
 413                 SSVAL(trans->out.params.data, 0, 0);
 414                 put_dos_date2(trans->out.data.data, 0, st->standard.out.create_time);
 415                 put_dos_date2(trans->out.data.data, 4, st->standard.out.access_time);
 416                 put_dos_date2(trans->out.data.data, 8, st->standard.out.write_time);
 417                 SIVAL(trans->out.data.data,        12, st->standard.out.size);
 418                 SIVAL(trans->out.data.data,        16, st->standard.out.alloc_size);
 419                 SSVAL(trans->out.data.data,        20, st->standard.out.attrib);
 420                 return NT_STATUS_OK;
 421
 422         case RAW_FILEINFO_EA_SIZE:
 423                 trans2_setup_reply(req, trans, 2, 26, 0);
 424
 425                 SSVAL(trans->out.params.data, 0, 0);
 426                 put_dos_date2(trans->out.data.data, 0, st->ea_size.out.create_time);
 427                 put_dos_date2(trans->out.data.data, 4, st->ea_size.out.access_time);
 428                 put_dos_date2(trans->out.data.data, 8, st->ea_size.out.write_time);
 429                 SIVAL(trans->out.data.data,        12, st->ea_size.out.size);
 430                 SIVAL(trans->out.data.data,        16, st->ea_size.out.alloc_size);
 431                 SSVAL(trans->out.data.data,        20, st->ea_size.out.attrib);
 432                 SIVAL(trans->out.data.data,        22, st->ea_size.out.ea_size);
 433                 return NT_STATUS_OK;
 434
 435         case RAW_FILEINFO_NETWORK_OPEN_INFORMATION:
 436                 trans2_setup_reply(req, trans, 2, 56, 0);
 437
 438                 SSVAL(trans->out.params.data, 0, 0);
 439                 push_nttime(trans->out.data.data,  0, &st->network_open_information.out.create_time);
 440                 push_nttime(trans->out.data.data,  8, &st->network_open_information.out.access_time);
 441                 push_nttime(trans->out.data.data, 16, &st->network_open_information.out.write_time);
 442                 push_nttime(trans->out.data.data, 24, &st->network_open_information.out.change_time);
 443                 SBVAL(trans->out.data.data,       32, st->network_open_information.out.alloc_size);
 444                 SBVAL(trans->out.data.data,       40, st->network_open_information.out.size);
 445                 SIVAL(trans->out.data.data,       48, st->network_open_information.out.attrib);
 446                 SIVAL(trans->out.data.data,       52, 0); /* padding */
 447                 return NT_STATUS_OK;
 448
 449         case RAW_FILEINFO_STANDARD_INFO:
 450         case RAW_FILEINFO_STANDARD_INFORMATION:
 451                 trans2_setup_reply(req, trans, 2, 24, 0);
 452                 SSVAL(trans->out.params.data, 0, 0);
 453                 SBVAL(trans->out.data.data,  0, st->standard_info.out.alloc_size);
 454                 SBVAL(trans->out.data.data,  8, st->standard_info.out.size);
 455                 SIVAL(trans->out.data.data, 16, st->standard_info.out.nlink);
 456                 SCVAL(trans->out.data.data, 20, st->standard_info.out.delete_pending);
 457                 SCVAL(trans->out.data.data, 21, st->standard_info.out.directory);
 458                 SSVAL(trans->out.data.data, 22, 0); /* padding */
 459                 return NT_STATUS_OK;
 460
 461         case RAW_FILEINFO_ATTRIBUTE_TAG_INFORMATION:
 462                 trans2_setup_reply(req, trans, 2, 8, 0);
 463                 SSVAL(trans->out.params.data, 0, 0);
 464                 SIVAL(trans->out.data.data,  0, st->attribute_tag_information.out.attrib);
 465                 SIVAL(trans->out.data.data,  4, st->attribute_tag_information.out.reparse_tag);
 466                 return NT_STATUS_OK;
 467
 468         case RAW_FILEINFO_EA_INFO:
 469         case RAW_FILEINFO_EA_INFORMATION:
 470                 trans2_setup_reply(req, trans, 2, 4, 0);
 471                 SSVAL(trans->out.params.data, 0, 0);
 472                 SIVAL(trans->out.data.data,  0, st->ea_info.out.ea_size);
 473                 return NT_STATUS_OK;
 474
 475         case RAW_FILEINFO_MODE_INFORMATION:
 476                 trans2_setup_reply(req, trans, 2, 4, 0);
 477                 SSVAL(trans->out.params.data, 0, 0);
 478                 SIVAL(trans->out.data.data,  0, st->mode_information.out.mode);
 479                 return NT_STATUS_OK;
 480
 481         case RAW_FILEINFO_ALIGNMENT_INFORMATION:
 482                 trans2_setup_reply(req, trans, 2, 4, 0);
 483                 SSVAL(trans->out.params.data, 0, 0);
 484                 SIVAL(trans->out.data.data,  0,
 485                       st->alignment_information.out.alignment_requirement);
 486                 return NT_STATUS_OK;
 487
 488         case RAW_FILEINFO_ALL_EAS:
 489                 if (st->all_eas.out.num_eas == 0) {
 490                         trans2_setup_reply(req, trans, 2, 4, 0);
 491                         SSVAL(trans->out.params.data, 0, 0);
 492                         SIVAL(trans->out.data.data,  0, 0);
 493                 } else {
 494                         uint32 list_size = ea_list_size(st->all_eas.out.num_eas,
 495                                                         st->all_eas.out.eas);
 496                         trans2_setup_reply(req, trans, 2, list_size, 0);
 497                         SSVAL(trans->out.params.data, 0, 0);
 498                         ea_put_list(trans->out.data.data,
 499                                     st->all_eas.out.num_eas, st->all_eas.out.eas);
 500                 }
 501                 return NT_STATUS_OK;
 502
 503         case RAW_FILEINFO_ACCESS_INFORMATION:
 504                 trans2_setup_reply(req, trans, 2, 4, 0);
 505                 SSVAL(trans->out.params.data, 0, 0);
 506                 SIVAL(trans->out.data.data,  0, st->access_information.out.access_flags);
 507                 return NT_STATUS_OK;
 508
 509         case RAW_FILEINFO_POSITION_INFORMATION:
 510                 trans2_setup_reply(req, trans, 2, 8, 0);
 511                 SSVAL(trans->out.params.data, 0, 0);
 512                 SBVAL(trans->out.data.data,  0, st->position_information.out.position);
 513                 return NT_STATUS_OK;
 514
 515         case RAW_FILEINFO_COMPRESSION_INFO:
 516         case RAW_FILEINFO_COMPRESSION_INFORMATION:
 517                 trans2_setup_reply(req, trans, 2, 16, 0);
 518                 SSVAL(trans->out.params.data, 0, 0);
 519                 SBVAL(trans->out.data.data,  0, st->compression_info.out.compressed_size);
 520                 SSVAL(trans->out.data.data,  8, st->compression_info.out.format);
 521                 SCVAL(trans->out.data.data, 10, st->compression_info.out.unit_shift);
 522                 SCVAL(trans->out.data.data, 11, st->compression_info.out.chunk_shift);
 523                 SCVAL(trans->out.data.data, 12, st->compression_info.out.cluster_shift);
 524                 SSVAL(trans->out.data.data, 13, 0); /* 3 bytes padding */
 525                 SCVAL(trans->out.data.data, 15, 0);
 526                 return NT_STATUS_OK;
 527
 528         case RAW_FILEINFO_IS_NAME_VALID:
 529                 trans2_setup_reply(req, trans, 2, 0, 0);
 530                 SSVAL(trans->out.params.data, 0, 0);
 531                 return NT_STATUS_OK;
 532
 533         case RAW_FILEINFO_INTERNAL_INFORMATION:
 534                 trans2_setup_reply(req, trans, 2, 8, 0);
 535                 SSVAL(trans->out.params.data, 0, 0);
 536                 SBVAL(trans->out.data.data,  0, st->internal_information.out.file_id);
 537                 return NT_STATUS_OK;
 538
 539         case RAW_FILEINFO_ALL_INFO:
 540         case RAW_FILEINFO_ALL_INFORMATION:
 541                 trans2_setup_reply(req, trans, 2, 72, 0);
 542
 543                 SSVAL(trans->out.params.data, 0, 0);
 544                 push_nttime(trans->out.data.data,  0, &st->all_info.out.create_time);
 545                 push_nttime(trans->out.data.data,  8, &st->all_info.out.access_time);
 546                 push_nttime(trans->out.data.data, 16, &st->all_info.out.write_time);
 547                 push_nttime(trans->out.data.data, 24, &st->all_info.out.change_time);
 548                 SIVAL(trans->out.data.data,       32, st->all_info.out.attrib);
 549                 SBVAL(trans->out.data.data,       40, st->all_info.out.alloc_size);
 550                 SBVAL(trans->out.data.data,       48, st->all_info.out.size);
 551                 SIVAL(trans->out.data.data,       56, st->all_info.out.nlink);
 552                 SCVAL(trans->out.data.data,       60, st->all_info.out.delete_pending);
 553                 SCVAL(trans->out.data.data,       61, st->all_info.out.directory);
 554                 SSVAL(trans->out.data.data,       62, 0); /* padding */
 555                 SIVAL(trans->out.data.data,       64, st->all_info.out.ea_size);
 556                 trans2_append_data_string(req, trans, &st->all_info.out.fname,
 557                                           68, STR_UNICODE);
 558                 return NT_STATUS_OK;
 559
 560         case RAW_FILEINFO_NAME_INFO:
 561         case RAW_FILEINFO_NAME_INFORMATION:
 562                 trans2_setup_reply(req, trans, 2, 4, 0);
 563                 SSVAL(trans->out.params.data, 0, 0);
 564                 trans2_append_data_string(req, trans, &st->name_info.out.fname, 0, STR_UNICODE);
 565                 return NT_STATUS_OK;
 566
 567         case RAW_FILEINFO_ALT_NAME_INFO:
 568         case RAW_FILEINFO_ALT_NAME_INFORMATION:
 569                 trans2_setup_reply(req, trans, 2, 4, 0);
 570                 SSVAL(trans->out.params.data, 0, 0);
 571                 trans2_append_data_string(req, trans, &st->alt_name_info.out.fname, 0, STR_UNICODE);
 572                 return NT_STATUS_OK;
 573
 574         case RAW_FILEINFO_STREAM_INFO:
 575         case RAW_FILEINFO_STREAM_INFORMATION:
 576                 trans2_setup_reply(req, trans, 2, 0, 0);
 577
 578                 SSVAL(trans->out.params.data, 0, 0);
 579
 580                 for (i=0;i<st->stream_info.out.num_streams;i++) {
 581                         uint16 data_size = trans->out.data.length;
 582                         char *data;
 583
 584                         trans2_grow_data(req, trans, data_size + 24);
 585                         data = trans->out.data.data + data_size;
 586                         SBVAL(data,  8, st->stream_info.out.streams[i].size);
 587                         SBVAL(data, 16, st->stream_info.out.streams[i].alloc_size);
 588                         trans2_append_data_string(req, trans,
 589                                                   &st->stream_info.out.streams[i].stream_name,
 590                                                   data_size + 4, STR_UNICODE);
 591                         if (i == st->stream_info.out.num_streams - 1) {
 592                                 SIVAL(trans->out.data.data, data_size, 0);
 593                         } else {
 594                                 trans2_grow_data_fill(req, trans, (trans->out.data.length+7)&~7);
 595                                 SIVAL(trans->out.data.data, data_size,
 596                                       trans->out.data.length - data_size);
 597                         }
 598                 }
 599                 return NT_STATUS_OK;
 600         }
 601
 602         return NT_STATUS_INVALID_LEVEL;
 603 }
 604
 605 /*
 606   trans2 qpathinfo implementation
 607 */
 608 static NTSTATUS trans2_qpathinfo(struct request_context *req, struct smb_trans2 *trans)
 609 {
 610         union smb_fileinfo st;
 611         NTSTATUS status;
 612         uint16 level;
 613
 614         /* make sure we got enough parameters */
 615         if (trans->in.params.length < 8) {
 616                 return NT_STATUS_FOOBAR;
 617         }
 618
 619         level = SVAL(trans->in.params.data, 0);
 620
 621         trans2_pull_blob_string(req, &trans->in.params, 6, &st.generic.in.fname, 0);
 622         if (st.generic.in.fname == NULL) {
 623                 return NT_STATUS_FOOBAR;
 624         }
 625
 626         /* work out the backend level - we make it 1-1 in the header */
 627         st.generic.level = (enum fileinfo_level)level;
 628         if (st.generic.level >= RAW_FILEINFO_GENERIC) {
 629                 return NT_STATUS_INVALID_LEVEL;
 630         }
 631
 632         /* call the backend */
 633         status = req->conn->ntvfs_ops->qpathinfo(req, &st);
 634         if (!NT_STATUS_IS_OK(status)) {
 635                 return status;
 636         }
 637
 638         /* fill in the reply parameters */
 639         status = trans2_fileinfo_fill(req, trans, &st);
 640
 641         return status;
 642 }
 643
 644
 645 /*
 646   trans2 qpathinfo implementation
 647 */
 648 static NTSTATUS trans2_qfileinfo(struct request_context *req, struct smb_trans2 *trans)
 649 {
 650         union smb_fileinfo st;
 651         NTSTATUS status;
 652         uint16 level;
 653
 654         /* make sure we got enough parameters */
 655         if (trans->in.params.length < 4) {
 656                 return NT_STATUS_FOOBAR;
 657         }
 658
 659         st.generic.in.fnum  = SVAL(trans->in.params.data, 0);
 660         level = SVAL(trans->in.params.data, 2);
 661
 662         /* work out the backend level - we make it 1-1 in the header */
 663         st.generic.level = (enum fileinfo_level)level;
 664         if (st.generic.level >= RAW_FILEINFO_GENERIC) {
 665                 return NT_STATUS_INVALID_LEVEL;
 666         }
 667
 668         /* call the backend */
 669         status = req->conn->ntvfs_ops->qfileinfo(req, &st);
 670         if (!NT_STATUS_IS_OK(status)) {
 671                 return status;
 672         }
 673
 674         /* fill in the reply parameters */
 675         status = trans2_fileinfo_fill(req, trans, &st);
 676
 677         return status;
 678 }
 679
 680
 681 /*
 682   parse a trans2 setfileinfo/setpathinfo data blob
 683 */
 684 static NTSTATUS trans2_parse_sfileinfo(struct request_context *req,
 685                                        union smb_setfileinfo *st,
 686                                        const DATA_BLOB *blob)
 687 {
 688         uint32 len;
 689
 690         switch (st->generic.level) {
 691         case RAW_SFILEINFO_GENERIC:
 692         case RAW_SFILEINFO_SETATTR:
 693         case RAW_SFILEINFO_SETATTRE:
 694                 /* handled elsewhere */
 695                 return NT_STATUS_INVALID_LEVEL;
 696
 697         case RAW_SFILEINFO_STANDARD:
 698                 CHECK_MIN_BLOB_SIZE(blob, 12);
 699                 st->standard.in.create_time = make_unix_date2(blob->data + 0);
 700                 st->standard.in.access_time = make_unix_date2(blob->data + 4);
 701                 st->standard.in.write_time  = make_unix_date2(blob->data + 8);
 702                 return NT_STATUS_OK;
 703
 704         case RAW_SFILEINFO_EA_SET:
 705                 CHECK_MIN_BLOB_SIZE(blob, 4);
 706                 len = IVAL(blob->data, 0);
 707                 if (len > blob->length || len < 4) {
 708                         return NT_STATUS_INFO_LENGTH_MISMATCH;
 709                 }
 710                 {
 711                         DATA_BLOB blob2;
 712                         blob2.data = blob->data+4;
 713                         blob2.length = len-4;
 714                         len = ea_pull_struct(&blob2, req->mem_ctx, &st->ea_set.in.ea);
 715                 }
 716                 if (len == 0) {
 717                         return NT_STATUS_INVALID_PARAMETER;
 718                 }
 719                 return NT_STATUS_OK;
 720
 721         case SMB_SFILEINFO_BASIC_INFO:
 722         case SMB_SFILEINFO_BASIC_INFORMATION:
 723                 CHECK_MIN_BLOB_SIZE(blob, 36);
 724                 st->basic_info.in.create_time = pull_nttime(blob->data,  0);
 725                 st->basic_info.in.access_time = pull_nttime(blob->data,  8);
 726                 st->basic_info.in.write_time =  pull_nttime(blob->data, 16);
 727                 st->basic_info.in.change_time = pull_nttime(blob->data, 24);
 728                 st->basic_info.in.attrib =      IVAL(blob->data,        32);
 729                 return NT_STATUS_OK;
 730
 731         case SMB_SFILEINFO_DISPOSITION_INFO:
 732         case SMB_SFILEINFO_DISPOSITION_INFORMATION:
 733                 CHECK_MIN_BLOB_SIZE(blob, 1);
 734                 st->disposition_info.in.delete_on_close = CVAL(blob->data, 0);
 735                 return NT_STATUS_OK;
 736
 737         case SMB_SFILEINFO_ALLOCATION_INFO:
 738         case SMB_SFILEINFO_ALLOCATION_INFORMATION:
 739                 CHECK_MIN_BLOB_SIZE(blob, 8);
 740                 st->allocation_info.in.alloc_size = BVAL(blob->data, 0);
 741                 return NT_STATUS_OK;
 742
 743         case RAW_SFILEINFO_END_OF_FILE_INFO:
 744         case RAW_SFILEINFO_END_OF_FILE_INFORMATION:
 745                 CHECK_MIN_BLOB_SIZE(blob, 8);
 746                 st->end_of_file_info.in.size = BVAL(blob->data, 0);
 747                 return NT_STATUS_OK;
 748
 749         case RAW_SFILEINFO_RENAME_INFORMATION: {
 750                 DATA_BLOB blob2;
 751
 752                 CHECK_MIN_BLOB_SIZE(blob, 12);
 753                 st->rename_information.in.overwrite = CVAL(blob->data, 0);
 754                 st->rename_information.in.root_fid  = IVAL(blob->data, 4);
 755                 len                                 = IVAL(blob->data, 8);
 756                 blob2.data = blob->data+12;
 757                 blob2.length = MIN(blob->length, len);
 758                 trans2_pull_blob_string(req, &blob2, 0,
 759                                         &st->rename_information.in.new_name, STR_UNICODE);
 760                 return NT_STATUS_OK;
 761         }
 762
 763         case RAW_SFILEINFO_POSITION_INFORMATION:
 764                 CHECK_MIN_BLOB_SIZE(blob, 8);
 765                 st->position_information.in.position = BVAL(blob->data, 0);
 766                 return NT_STATUS_OK;
 767
 768         case RAW_SFILEINFO_MODE_INFORMATION:
 769                 CHECK_MIN_BLOB_SIZE(blob, 4);
 770                 st->mode_information.in.mode = IVAL(blob->data, 0);
 771                 return NT_STATUS_OK;
 772         }
 773
 774         return NT_STATUS_INVALID_LEVEL;
 775 }
 776
 777 /*
 778   trans2 setfileinfo implementation
 779 */
 780 static NTSTATUS trans2_setfileinfo(struct request_context *req, struct smb_trans2 *trans)
 781 {
 782         union smb_setfileinfo st;
 783         NTSTATUS status;
 784         uint16 level, fnum;
 785         DATA_BLOB *blob;
 786
 787         /* make sure we got enough parameters */
 788         if (trans->in.params.length < 4) {
 789                 return NT_STATUS_FOOBAR;
 790         }
 791
 792         fnum  = SVAL(trans->in.params.data, 0);
 793         level = SVAL(trans->in.params.data, 2);
 794
 795         blob = &trans->in.data;
 796
 797         st.generic.file.fnum = fnum;
 798         st.generic.level = (enum setfileinfo_level)level;
 799
 800         status = trans2_parse_sfileinfo(req, &st, blob);
 801         if (!NT_STATUS_IS_OK(status)) {
 802                 return status;
 803         }
 804
 805         status = req->conn->ntvfs_ops->setfileinfo(req, &st);
 806         if (!NT_STATUS_IS_OK(status)) {
 807                 return status;
 808         }
 809
 810         trans2_setup_reply(req, trans, 2, 0, 0);
 811         SSVAL(trans->out.params.data, 0, 0);
 812         return NT_STATUS_OK;
 813 }
 814
 815 /*
 816   trans2 setpathinfo implementation
 817 */
 818 static NTSTATUS trans2_setpathinfo(struct request_context *req, struct smb_trans2 *trans)
 819 {
 820         union smb_setfileinfo st;
 821         NTSTATUS status;
 822         uint16 level;
 823         DATA_BLOB *blob;
 824
 825         /* make sure we got enough parameters */
 826         if (trans->in.params.length < 4) {
 827                 return NT_STATUS_FOOBAR;
 828         }
 829
 830         level = SVAL(trans->in.params.data, 0);
 831         blob = &trans->in.data;
 832         st.generic.level = (enum setfileinfo_level)level;
 833
 834         trans2_pull_blob_string(req, &trans->in.params, 4, &st.generic.file.fname, 0);
 835         if (st.generic.file.fname == NULL) {
 836                 return NT_STATUS_FOOBAR;
 837         }
 838
 839         status = trans2_parse_sfileinfo(req, &st, blob);
 840         if (!NT_STATUS_IS_OK(status)) {
 841                 return status;
 842         }
 843
 844         status = req->conn->ntvfs_ops->setpathinfo(req, &st);
 845         if (!NT_STATUS_IS_OK(status)) {
 846                 return status;
 847         }
 848
 849         trans2_setup_reply(req, trans, 2, 0, 0);
 850         SSVAL(trans->out.params.data, 0, 0);
 851         return NT_STATUS_OK;
 852 }
 853
 854
 855 /* a structure to encapsulate the state information about an in-progress ffirst/fnext operation */
 856 struct find_state {
 857         struct request_context *req;
 858         struct smb_trans2 *trans;
 859         enum search_level level;
 860         uint16 last_entry_offset;
 861         uint16 flags;
 862 };
 863
 864 /*
 865   fill a single entry in a trans2 find reply
 866 */
 867 static void find_fill_info(struct request_context *req,
 868                            struct smb_trans2 *trans,
 869                            struct find_state *state,
 870                            union smb_search_data *file)
 871 {
 872         char *data;
 873         uint_t ofs = trans->out.data.length;
 874
 875         switch (state->level) {
 876         case RAW_SEARCH_SEARCH:
 877         case RAW_SEARCH_GENERIC:
 878                 /* handled elsewhere */
 879                 break;
 880
 881         case RAW_SEARCH_STANDARD:
 882                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 883                         trans2_grow_data(req, trans, ofs + 27);
 884                         SIVAL(trans->out.data.data, ofs, file->standard.resume_key);
 885                         ofs += 4;
 886                 } else {
 887                         trans2_grow_data(req, trans, ofs + 23);
 888                 }
 889                 data = trans->out.data.data + ofs;
 890                 put_dos_date2(data, 0, file->standard.create_time);
 891                 put_dos_date2(data, 4, file->standard.access_time);
 892                 put_dos_date2(data, 8, file->standard.write_time);
 893                 SIVAL(data, 12, file->standard.size);
 894                 SIVAL(data, 16, file->standard.alloc_size);
 895                 SSVAL(data, 20, file->standard.attrib);
 896                 trans2_append_data_string(req, trans, &file->standard.name,
 897                                           ofs + 22, STR_LEN8BIT | STR_TERMINATE | STR_LEN_NOTERM);
 898                 break;
 899
 900         case RAW_SEARCH_EA_SIZE:
 901                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 902                         trans2_grow_data(req, trans, ofs + 31);
 903                         SIVAL(trans->out.data.data, ofs, file->ea_size.resume_key);
 904                         ofs += 4;
 905                 } else {
 906                         trans2_grow_data(req, trans, ofs + 27);
 907                 }
 908                 data = trans->out.data.data + ofs;
 909                 put_dos_date2(data, 0, file->ea_size.create_time);
 910                 put_dos_date2(data, 4, file->ea_size.access_time);
 911                 put_dos_date2(data, 8, file->ea_size.write_time);
 912                 SIVAL(data, 12, file->ea_size.size);
 913                 SIVAL(data, 16, file->ea_size.alloc_size);
 914                 SSVAL(data, 20, file->ea_size.attrib);
 915                 SIVAL(data, 22, file->ea_size.ea_size);
 916                 trans2_append_data_string(req, trans, &file->ea_size.name,
 917                                           ofs + 26, STR_LEN8BIT | STR_TERMINATE | STR_NOALIGN);
 918                 break;
 919
 920         case RAW_SEARCH_DIRECTORY_INFO:
 921                 trans2_grow_data(req, trans, ofs + 64);
 922                 data = trans->out.data.data + ofs;
 923                 SIVAL(data,          4, file->directory_info.file_index);
 924                 push_nttime(data,    8, &file->directory_info.create_time);
 925                 push_nttime(data,   16, &file->directory_info.access_time);
 926                 push_nttime(data,   24, &file->directory_info.write_time);
 927                 push_nttime(data,   32, &file->directory_info.change_time);
 928                 SBVAL(data,         40, file->directory_info.size);
 929                 SBVAL(data,         48, file->directory_info.alloc_size);
 930                 SIVAL(data,         56, file->directory_info.attrib);
 931                 trans2_append_data_string(req, trans, &file->directory_info.name,
 932                                           ofs + 60, STR_TERMINATE_ASCII);
 933                 data = trans->out.data.data + ofs;
 934                 SIVAL(data,          0, trans->out.data.length - ofs);
 935                 break;
 936
 937         case RAW_SEARCH_FULL_DIRECTORY_INFO:
 938                 trans2_grow_data(req, trans, ofs + 68);
 939                 data = trans->out.data.data + ofs;
 940                 SIVAL(data,          4, file->full_directory_info.file_index);
 941                 push_nttime(data,    8, &file->full_directory_info.create_time);
 942                 push_nttime(data,   16, &file->full_directory_info.access_time);
 943                 push_nttime(data,   24, &file->full_directory_info.write_time);
 944                 push_nttime(data,   32, &file->full_directory_info.change_time);
 945                 SBVAL(data,         40, file->full_directory_info.size);
 946                 SBVAL(data,         48, file->full_directory_info.alloc_size);
 947                 SIVAL(data,         56, file->full_directory_info.attrib);
 948                 SIVAL(data,         64, file->full_directory_info.ea_size);
 949                 trans2_append_data_string(req, trans, &file->full_directory_info.name,
 950                                           ofs + 60, STR_TERMINATE_ASCII);
 951                 data = trans->out.data.data + ofs;
 952                 SIVAL(data,          0, trans->out.data.length - ofs);
 953                 break;
 954
 955         case RAW_SEARCH_NAME_INFO:
 956                 trans2_grow_data(req, trans, ofs + 12);
 957                 data = trans->out.data.data + ofs;
 958                 SIVAL(data,          4, file->name_info.file_index);
 959                 trans2_append_data_string(req, trans, &file->name_info.name,
 960                                           ofs + 8, STR_TERMINATE_ASCII);
 961                 data = trans->out.data.data + ofs;
 962                 SIVAL(data,          0, trans->out.data.length - ofs);
 963                 break;
 964
 965         case RAW_SEARCH_BOTH_DIRECTORY_INFO:
 966                 trans2_grow_data(req, trans, ofs + 94);
 967                 data = trans->out.data.data + ofs;
 968                 SIVAL(data,          4, file->both_directory_info.file_index);
 969                 push_nttime(data,    8, &file->both_directory_info.create_time);
 970                 push_nttime(data,   16, &file->both_directory_info.access_time);
 971                 push_nttime(data,   24, &file->both_directory_info.write_time);
 972                 push_nttime(data,   32, &file->both_directory_info.change_time);
 973                 SBVAL(data,         40, file->both_directory_info.size);
 974                 SBVAL(data,         48, file->both_directory_info.alloc_size);
 975                 SIVAL(data,         56, file->both_directory_info.attrib);
 976                 SIVAL(data,         64, file->both_directory_info.ea_size);
 977                 SCVAL(data,         69, 0); /* reserved */
 978                 memset(data+70,0,24);
 979                 trans2_push_data_string(req, trans,
 980                                         68 + ofs, 70 + ofs,
 981                                         &file->both_directory_info.short_name,
 982                                         24, STR_UNICODE | STR_LEN8BIT);
 983                 trans2_append_data_string(req, trans, &file->both_directory_info.name,
 984                                           ofs + 60, STR_TERMINATE_ASCII);
 985                 data = trans->out.data.data + ofs;
 986                 SIVAL(data,          0, trans->out.data.length - ofs);
 987                 break;
 988
 989         case RAW_SEARCH_ID_FULL_DIRECTORY_INFO:
 990                 trans2_grow_data(req, trans, ofs + 80);
 991                 data = trans->out.data.data + ofs;
 992                 SIVAL(data,          4, file->id_full_directory_info.file_index);
 993                 push_nttime(data,    8, &file->id_full_directory_info.create_time);
 994                 push_nttime(data,   16, &file->id_full_directory_info.access_time);
 995                 push_nttime(data,   24, &file->id_full_directory_info.write_time);
 996                 push_nttime(data,   32, &file->id_full_directory_info.change_time);
 997                 SBVAL(data,         40, file->id_full_directory_info.size);
 998                 SBVAL(data,         48, file->id_full_directory_info.alloc_size);
 999                 SIVAL(data,         56, file->id_full_directory_info.attrib);
1000                 SIVAL(data,         64, file->id_full_directory_info.ea_size);
1001                 SIVAL(data,         68, 0); /* padding */
1002                 SBVAL(data,         72, file->id_full_directory_info.file_id);
1003                 trans2_append_data_string(req, trans, &file->id_full_directory_info.name,
1004                                           ofs + 60, STR_TERMINATE_ASCII);
1005                 data = trans->out.data.data + ofs;
1006                 SIVAL(data,          0, trans->out.data.length - ofs);
1007                 break;
1008
1009         case RAW_SEARCH_ID_BOTH_DIRECTORY_INFO:
1010                 trans2_grow_data(req, trans, ofs + 104);
1011                 data = trans->out.data.data + ofs;
1012                 SIVAL(data,          4, file->id_both_directory_info.file_index);
1013                 push_nttime(data,    8, &file->id_both_directory_info.create_time);
1014                 push_nttime(data,   16, &file->id_both_directory_info.access_time);
1015                 push_nttime(data,   24, &file->id_both_directory_info.write_time);
1016                 push_nttime(data,   32, &file->id_both_directory_info.change_time);
1017                 SBVAL(data,         40, file->id_both_directory_info.size);
1018                 SBVAL(data,         48, file->id_both_directory_info.alloc_size);
1019                 SIVAL(data,         56, file->id_both_directory_info.attrib);
1020                 SIVAL(data,         64, file->id_both_directory_info.ea_size);
1021                 SCVAL(data,         69, 0); /* reserved */
1022                 memset(data+70,0,24);
1023                 trans2_push_data_string(req, trans,
1024                                         68 + ofs, 70 + ofs,
1025                                         &file->id_both_directory_info.short_name,
1026                                         24, STR_UNICODE | STR_LEN8BIT);
1027                 SBVAL(data,         94, file->id_both_directory_info.file_id);
1028                 SSVAL(data,        102, 0); /* reserved? */
1029                 trans2_append_data_string(req, trans, &file->id_both_directory_info.name,
1030                                           ofs + 60, STR_TERMINATE_ASCII);
1031                 data = trans->out.data.data + ofs;
1032                 SIVAL(data,          0, trans->out.data.length - ofs);
1033                 break;
1034         }
1035 }
1036
1037 /* callback function for trans2 findfirst/findnext */
1038 static BOOL find_callback(void *private, union smb_search_data *file)
1039 {
1040         struct find_state *state = (struct find_state *)private;
1041         struct smb_trans2 *trans = state->trans;
1042         uint_t old_length;
1043
1044         old_length = trans->out.data.length;
1045
1046         find_fill_info(state->req, trans, state, file);
1047
1048         /* see if we have gone beyond the user specified maximum */
1049         if (trans->out.data.length > trans->in.max_data) {
1050                 /* restore the old length and tell the backend to stop */
1051                 trans2_grow_data(state->req, trans, old_length);
1052                 return False;
1053         }
1054
1055         state->last_entry_offset = old_length;
1056         return True;
1057 }
1058
1059
1060 /*
1061   trans2 findfirst implementation
1062 */
1063 static NTSTATUS trans2_findfirst(struct request_context *req, struct smb_trans2 *trans)
1064 {
1065         union smb_search_first search;
1066         NTSTATUS status;
1067         uint16 level;
1068         char *param;
1069         struct find_state state;
1070
1071         /* make sure we got all the parameters */
1072         if (trans->in.params.length < 14) {
1073                 return NT_STATUS_FOOBAR;
1074         }
1075
1076         search.t2ffirst.in.search_attrib = SVAL(trans->in.params.data, 0);
1077         search.t2ffirst.in.max_count     = SVAL(trans->in.params.data, 2);
1078         search.t2ffirst.in.flags         = SVAL(trans->in.params.data, 4);
1079         level                            = SVAL(trans->in.params.data, 6);
1080         search.t2ffirst.in.storage_type  = IVAL(trans->in.params.data, 8);
1081
1082         trans2_pull_blob_string(req, &trans->in.params, 12, &search.t2ffirst.in.pattern, 0);
1083         if (search.t2ffirst.in.pattern == NULL) {
1084                 return NT_STATUS_FOOBAR;
1085         }
1086
1087         search.t2ffirst.level = (enum search_level)level;
1088         if (search.t2ffirst.level >= RAW_SEARCH_GENERIC) {
1089                 return NT_STATUS_INVALID_LEVEL;
1090         }
1091
1092         /* setup the private state structure that the backend will give us in the callback */
1093         state.req = req;
1094         state.trans = trans;
1095         state.level = search.t2ffirst.level;
1096         state.last_entry_offset = 0;
1097         state.flags = search.t2ffirst.in.flags;
1098
1099         /* setup for just a header in the reply */
1100         trans2_setup_reply(req, trans, 10, 0, 0);
1101
1102         /* call the backend */
1103         status = req->conn->ntvfs_ops->search_first(req, &search, &state, find_callback);
1104         if (!NT_STATUS_IS_OK(status)) {
1105                 return status;
1106         }
1107
1108         /* fill in the findfirst reply header */
1109         param = trans->out.params.data;
1110         SSVAL(param, VWV(0), search.t2ffirst.out.handle);
1111         SSVAL(param, VWV(1), search.t2ffirst.out.count);
1112         SSVAL(param, VWV(2), search.t2ffirst.out.end_of_search);
1113         SSVAL(param, VWV(3), 0);
1114         SSVAL(param, VWV(4), state.last_entry_offset);
1115
1116         return NT_STATUS_OK;
1117 }
1118
1119
1120 /*
1121   trans2 findnext implementation
1122 */
1123 static NTSTATUS trans2_findnext(struct request_context *req, struct smb_trans2 *trans)
1124 {
1125         union smb_search_next search;
1126         NTSTATUS status;
1127         uint16 level;
1128         char *param;
1129         struct find_state state;
1130
1131         /* make sure we got all the parameters */
1132         if (trans->in.params.length < 12) {
1133                 return NT_STATUS_FOOBAR;
1134         }
1135
1136         search.t2fnext.in.handle        = SVAL(trans->in.params.data, 0);
1137         search.t2fnext.in.max_count     = SVAL(trans->in.params.data, 2);
1138         level                           = SVAL(trans->in.params.data, 4);
1139         search.t2fnext.in.resume_key    = IVAL(trans->in.params.data, 6);
1140         search.t2fnext.in.flags         = SVAL(trans->in.params.data, 10);
1141
1142         trans2_pull_blob_string(req, &trans->in.params, 12, &search.t2fnext.in.last_name, 0);
1143         if (search.t2fnext.in.last_name == NULL) {
1144                 return NT_STATUS_FOOBAR;
1145         }
1146
1147         search.t2fnext.level = (enum search_level)level;
1148         if (search.t2fnext.level >= RAW_SEARCH_GENERIC) {
1149                 return NT_STATUS_INVALID_LEVEL;
1150         }
1151
1152         /* setup the private state structure that the backend will give us in the callback */
1153         state.req = req;
1154         state.trans = trans;
1155         state.level = search.t2fnext.level;
1156         state.last_entry_offset = 0;
1157         state.flags = search.t2fnext.in.flags;
1158
1159         /* setup for just a header in the reply */
1160         trans2_setup_reply(req, trans, 8, 0, 0);
1161
1162         /* call the backend */
1163         status = req->conn->ntvfs_ops->search_next(req, &search, &state, find_callback);
1164         if (!NT_STATUS_IS_OK(status)) {
1165                 return status;
1166         }
1167
1168         /* fill in the findfirst reply header */
1169         param = trans->out.params.data;
1170         SSVAL(param, VWV(0), search.t2fnext.out.count);
1171         SSVAL(param, VWV(1), search.t2fnext.out.end_of_search);
1172         SSVAL(param, VWV(2), 0);
1173         SSVAL(param, VWV(3), state.last_entry_offset);
1174
1175         return NT_STATUS_OK;
1176 }
1177
1178
1179 /*
1180   backend for trans2 requests
1181 */
1182 static NTSTATUS trans2_backend(struct request_context *req, struct smb_trans2 *trans)
1183 {
1184         if (req->conn->ntvfs_ops->trans2 != NULL) {
1185                 /* direct trans2 pass thru */
1186                 return req->conn->ntvfs_ops->trans2(req, trans);
1187         }
1188
1189         /* must have at least one setup word */
1190         if (trans->in.setup_count < 1) {
1191                 return NT_STATUS_FOOBAR;
1192         }
1193
1194         /* the trans2 command is in setup[0] */
1195         switch (trans->in.setup[0]) {
1196         case TRANSACT2_FINDFIRST:
1197                 return trans2_findfirst(req, trans);
1198         case TRANSACT2_FINDNEXT:
1199                 return trans2_findnext(req, trans);
1200         case TRANSACT2_QPATHINFO:
1201                 return trans2_qpathinfo(req, trans);
1202         case TRANSACT2_QFILEINFO:
1203                 return trans2_qfileinfo(req, trans);
1204         case TRANSACT2_SETFILEINFO:
1205                 return trans2_setfileinfo(req, trans);
1206         case TRANSACT2_SETPATHINFO:
1207                 return trans2_setpathinfo(req, trans);
1208         case TRANSACT2_QFSINFO:
1209                 return trans2_qfsinfo(req, trans);
1210         }
1211
1212         /* an unknown trans2 command */
1213         return NT_STATUS_FOOBAR;
1214 }
1215
1216
1217 /*
1218   backend for trans requests
1219 */
1220 static NTSTATUS trans_backend(struct request_context *req, struct smb_trans2 *trans)
1221 {
1222
1223         return NT_STATUS_NOT_IMPLEMENTED;
1224 }
1225
1226
1227 /****************************************************************************
1228  Reply to an SMBtrans or SMBtrans2 request
1229 ****************************************************************************/
1230 void reply_trans_generic(struct request_context *req, uint8 command)
1231 {
1232         struct smb_trans2 trans;
1233         int i;
1234         uint16 param_ofs, data_ofs;
1235         uint16 param_count, data_count;
1236         uint16 params_left, data_left;
1237         uint16 param_total, data_total;
1238         char *params, *data;
1239         NTSTATUS status;
1240
1241         /* parse request */
1242         if (req->in.wct < 14) {
1243                 req_reply_error(req, NT_STATUS_FOOBAR);
1244                 return;
1245         }
1246
1247         param_total          = SVAL(req->in.vwv, VWV(0));
1248         data_total           = SVAL(req->in.vwv, VWV(1));
1249         trans.in.max_param   = SVAL(req->in.vwv, VWV(2));
1250         trans.in.max_data    = SVAL(req->in.vwv, VWV(3));
1251         trans.in.max_setup   = CVAL(req->in.vwv, VWV(4));
1252         trans.in.flags       = SVAL(req->in.vwv, VWV(5));
1253         trans.in.timeout     = IVAL(req->in.vwv, VWV(6));
1254         param_count          = SVAL(req->in.vwv, VWV(9));
1255         param_ofs            = SVAL(req->in.vwv, VWV(10));
1256         data_count           = SVAL(req->in.vwv, VWV(11));
1257         data_ofs             = SVAL(req->in.vwv, VWV(12));
1258         trans.in.setup_count = CVAL(req->in.vwv, VWV(13));
1259
1260         if (req->in.wct != 14 + trans.in.setup_count) {
1261                 req_reply_dos_error(req, ERRSRV, ERRerror);
1262                 return;
1263         }
1264
1265         /* parse out the setup words */
1266         trans.in.setup = talloc(req->mem_ctx, trans.in.setup_count * sizeof(uint16));
1267         if (!trans.in.setup) {
1268                 req_reply_error(req, NT_STATUS_NO_MEMORY);
1269                 return;
1270         }
1271         for (i=0;i<trans.in.setup_count;i++) {
1272                 trans.in.setup[i] = SVAL(req->in.vwv, VWV(14+i));
1273         }
1274
1275         if (command == SMBtrans) {
1276                 req_pull_string(req, &trans.in.trans_name, req->in.data, -1, STR_TERMINATE);
1277         }
1278
1279         if (!req_pull_blob(req, req->in.hdr + param_ofs, param_count, &trans.in.params) ||
1280             !req_pull_blob(req, req->in.hdr + data_ofs, data_count, &trans.in.data)) {
1281                 req_reply_error(req, NT_STATUS_FOOBAR);
1282                 return;
1283         }
1284
1285         /* is it a partial request? if so, then send a 'send more' message */
1286         if (param_total > param_count ||
1287             data_total > data_count) {
1288                 DEBUG(0,("REWRITE: not handling partial trans requests!\n"));
1289                 return;
1290         }
1291
1292         /* its a full request, give it to the backend */
1293         if (command == SMBtrans) {
1294                 status = trans_backend(req, &trans);
1295         } else {
1296                 status = trans2_backend(req, &trans);
1297         }
1298
1299         if (!NT_STATUS_IS_OK(status)) {
1300                 req_reply_error(req, status);
1301                 return;
1302         }
1303
1304         params_left = trans.out.params.length;
1305         data_left   = trans.out.data.length;
1306         params      = trans.out.params.data;
1307         data        = trans.out.data.data;
1308
1309         req->control_flags |= REQ_CONTROL_PROTECTED;
1310
1311         /* we need to divide up the reply into chunks that fit into
1312            the negotiated buffer size */
1313         do {
1314                 uint16 this_data, this_param, max_bytes;
1315                 uint_t align1 = 1, align2 = (params_left ? 2 : 0);
1316
1317                 req_setup_reply(req, 10 + trans.out.setup_count, 0);
1318
1319                 max_bytes = req_max_data(req) - (align1 + align2);
1320
1321                 this_param = params_left;
1322                 if (this_param > max_bytes) {
1323                         this_param = max_bytes;
1324                 }
1325                 max_bytes -= this_param;
1326
1327                 this_data = data_left;
1328                 if (this_data > max_bytes) {
1329                         this_data = max_bytes;
1330                 }
1331
1332                 req_grow_data(req, this_param + this_data + (align1 + align2));
1333
1334                 SSVAL(req->out.vwv, VWV(0), trans.out.params.length);
1335                 SSVAL(req->out.vwv, VWV(1), trans.out.data.length);
1336                 SSVAL(req->out.vwv, VWV(2), 0);
1337
1338                 SSVAL(req->out.vwv, VWV(3), this_param);
1339                 SSVAL(req->out.vwv, VWV(4), align1 + PTR_DIFF(req->out.data, req->out.hdr));
1340                 SSVAL(req->out.vwv, VWV(5), PTR_DIFF(params, trans.out.params.data));
1341
1342                 SSVAL(req->out.vwv, VWV(6), this_data);
1343                 SSVAL(req->out.vwv, VWV(7), align1 + align2 +
1344                       PTR_DIFF(req->out.data + this_param, req->out.hdr));
1345                 SSVAL(req->out.vwv, VWV(8), PTR_DIFF(data, trans.out.data.data));
1346
1347                 SSVAL(req->out.vwv, VWV(9), trans.out.setup_count);
1348                 for (i=0;i<trans.out.setup_count;i++) {
1349                         SSVAL(req->out.vwv, VWV(10+i), trans.out.setup[i]);
1350                 }
1351
1352                 memset(req->out.data, 0, align1);
1353                 if (this_param != 0) {
1354                         memcpy(req->out.data + align1, params, this_param);
1355                 }
1356                 memset(req->out.data+this_param+align1, 0, align2);
1357                 if (this_data != 0) {
1358                         memcpy(req->out.data+this_param+align1+align2, data, this_data);
1359                 }
1360
1361                 params_left -= this_param;
1362                 data_left -= this_data;
1363                 params += this_param;
1364                 data += this_data;
1365
1366                 /* if this is the last chunk then the request can be destroyed */
1367                 if (params_left == 0 && data_left == 0) {
1368                         req->control_flags &= ~REQ_CONTROL_PROTECTED;
1369                 }
1370
1371                 req_send_reply(req);
1372         } while (params_left != 0 || data_left != 0);
1373 }
1374
1375
1376 /****************************************************************************
1377  Reply to an SMBtrans2
1378 ****************************************************************************/
1379 void reply_trans2(struct request_context *req)
1380 {
1381         reply_trans_generic(req, SMBtrans2);
1382 }
1383
1384 /****************************************************************************
1385  Reply to an SMBtrans
1386 ****************************************************************************/
1387 void reply_trans(struct request_context *req)
1388 {
1389         reply_trans_generic(req, SMBtrans);
1390 }
1391
1392 /****************************************************************************
1393  Reply to an SMBtranss2 request
1394 ****************************************************************************/
1395 void reply_transs2(struct request_context *req)
1396 {
1397         req_reply_error(req, NT_STATUS_FOOBAR);
1398 }
1399
1400