source/smb_server/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_t 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_t 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_t new_size)
  59 {
  60         uint16_t 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_t param_size, uint16_t data_size,
  72                                uint16_t 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_t) * 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_t 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_t len_offset,
 113                                       uint16_t 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_t 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_m(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_t level;
 204         uint_t i;
 205         DATA_BLOB guid_blob;
 206
 207         /* make sure we got enough parameters */
 208         if (trans->in.params.length != 2) {
 209                 return NT_STATUS_FOOBAR;
 210         }
 211
 212         level = SVAL(trans->in.params.data, 0);
 213
 214         switch (level) {
 215         case SMB_QFS_ALLOCATION:
 216                 fsinfo.allocation.level = RAW_QFS_ALLOCATION;
 217
 218                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 219                 if (!NT_STATUS_IS_OK(status)) {
 220                         return status;
 221                 }
 222
 223                 trans2_setup_reply(req, trans, 0, 18, 0);
 224
 225                 SIVAL(trans->out.data.data,  0, fsinfo.allocation.out.fs_id);
 226                 SIVAL(trans->out.data.data,  4, fsinfo.allocation.out.sectors_per_unit);
 227                 SIVAL(trans->out.data.data,  8, fsinfo.allocation.out.total_alloc_units);
 228                 SIVAL(trans->out.data.data, 12, fsinfo.allocation.out.avail_alloc_units);
 229                 SSVAL(trans->out.data.data, 16, fsinfo.allocation.out.bytes_per_sector);
 230
 231                 return NT_STATUS_OK;
 232
 233         case SMB_QFS_VOLUME:
 234                 fsinfo.volume.level = RAW_QFS_VOLUME;
 235
 236                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 237                 if (!NT_STATUS_IS_OK(status)) {
 238                         return status;
 239                 }
 240
 241                 trans2_setup_reply(req, trans, 0, 5, 0);
 242
 243                 SIVAL(trans->out.data.data,       0, fsinfo.volume.out.serial_number);
 244                 /* w2k3 implements this incorrectly for unicode - it
 245                  * leaves the last byte off the string */
 246                 trans2_append_data_string(req, trans,
 247                                           &fsinfo.volume.out.volume_name,
 248                                           4, STR_LEN8BIT|STR_NOALIGN);
 249
 250                 return NT_STATUS_OK;
 251
 252         case SMB_QFS_VOLUME_INFO:
 253         case SMB_QFS_VOLUME_INFORMATION:
 254                 fsinfo.volume_info.level = RAW_QFS_VOLUME_INFO;
 255
 256                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 257                 if (!NT_STATUS_IS_OK(status)) {
 258                         return status;
 259                 }
 260
 261                 trans2_setup_reply(req, trans, 0, 18, 0);
 262
 263                 push_nttime(trans->out.data.data, 0, fsinfo.volume_info.out.create_time);
 264                 SIVAL(trans->out.data.data,       8, fsinfo.volume_info.out.serial_number);
 265                 trans2_append_data_string(req, trans,
 266                                           &fsinfo.volume_info.out.volume_name,
 267                                           12, STR_UNICODE);
 268
 269                 return NT_STATUS_OK;
 270
 271         case SMB_QFS_SIZE_INFO:
 272         case SMB_QFS_SIZE_INFORMATION:
 273                 fsinfo.size_info.level = RAW_QFS_SIZE_INFO;
 274
 275                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 276                 if (!NT_STATUS_IS_OK(status)) {
 277                         return status;
 278                 }
 279
 280                 trans2_setup_reply(req, trans, 0, 24, 0);
 281
 282                 SBVAL(trans->out.data.data,  0, fsinfo.size_info.out.total_alloc_units);
 283                 SBVAL(trans->out.data.data,  8, fsinfo.size_info.out.avail_alloc_units);
 284                 SIVAL(trans->out.data.data, 16, fsinfo.size_info.out.sectors_per_unit);
 285                 SIVAL(trans->out.data.data, 20, fsinfo.size_info.out.bytes_per_sector);
 286
 287                 return NT_STATUS_OK;
 288
 289         case SMB_QFS_DEVICE_INFO:
 290         case SMB_QFS_DEVICE_INFORMATION:
 291                 fsinfo.device_info.level = RAW_QFS_DEVICE_INFO;
 292
 293                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 294                 if (!NT_STATUS_IS_OK(status)) {
 295                         return status;
 296                 }
 297                 trans2_setup_reply(req, trans, 0, 8, 0);
 298                 SIVAL(trans->out.data.data,      0, fsinfo.device_info.out.device_type);
 299                 SIVAL(trans->out.data.data,      4, fsinfo.device_info.out.characteristics);
 300                 return NT_STATUS_OK;
 301
 302
 303         case SMB_QFS_ATTRIBUTE_INFO:
 304         case SMB_QFS_ATTRIBUTE_INFORMATION:
 305                 fsinfo.attribute_info.level = RAW_QFS_ATTRIBUTE_INFO;
 306
 307                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 308                 if (!NT_STATUS_IS_OK(status)) {
 309                         return status;
 310                 }
 311
 312                 trans2_setup_reply(req, trans, 0, 12, 0);
 313
 314                 SIVAL(trans->out.data.data, 0, fsinfo.attribute_info.out.fs_attr);
 315                 SIVAL(trans->out.data.data, 4, fsinfo.attribute_info.out.max_file_component_length);
 316                 /* this must not be null terminated or win98 gets
 317                    confused!  also note that w2k3 returns this as
 318                    unicode even when ascii is negotiated */
 319                 trans2_append_data_string(req, trans,
 320                                           &fsinfo.attribute_info.out.fs_type,
 321                                           8, STR_UNICODE);
 322                 return NT_STATUS_OK;
 323
 324
 325         case SMB_QFS_QUOTA_INFORMATION:
 326                 fsinfo.quota_information.level = RAW_QFS_QUOTA_INFORMATION;
 327
 328                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 329                 if (!NT_STATUS_IS_OK(status)) {
 330                         return status;
 331                 }
 332
 333                 trans2_setup_reply(req, trans, 0, 48, 0);
 334
 335                 SBVAL(trans->out.data.data,   0, fsinfo.quota_information.out.unknown[0]);
 336                 SBVAL(trans->out.data.data,   8, fsinfo.quota_information.out.unknown[1]);
 337                 SBVAL(trans->out.data.data,  16, fsinfo.quota_information.out.unknown[2]);
 338                 SBVAL(trans->out.data.data,  24, fsinfo.quota_information.out.quota_soft);
 339                 SBVAL(trans->out.data.data,  32, fsinfo.quota_information.out.quota_hard);
 340                 SBVAL(trans->out.data.data,  40, fsinfo.quota_information.out.quota_flags);
 341
 342                 return NT_STATUS_OK;
 343
 344
 345         case SMB_QFS_FULL_SIZE_INFORMATION:
 346                 fsinfo.full_size_information.level = RAW_QFS_FULL_SIZE_INFORMATION;
 347
 348                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 349                 if (!NT_STATUS_IS_OK(status)) {
 350                         return status;
 351                 }
 352
 353                 trans2_setup_reply(req, trans, 0, 32, 0);
 354
 355                 SBVAL(trans->out.data.data,  0, fsinfo.full_size_information.out.total_alloc_units);
 356                 SBVAL(trans->out.data.data,  8, fsinfo.full_size_information.out.call_avail_alloc_units);
 357                 SBVAL(trans->out.data.data, 16, fsinfo.full_size_information.out.actual_avail_alloc_units);
 358                 SIVAL(trans->out.data.data, 24, fsinfo.full_size_information.out.sectors_per_unit);
 359                 SIVAL(trans->out.data.data, 28, fsinfo.full_size_information.out.bytes_per_sector);
 360
 361                 return NT_STATUS_OK;
 362
 363         case SMB_QFS_OBJECTID_INFORMATION:
 364                 fsinfo.objectid_information.level = RAW_QFS_OBJECTID_INFORMATION;
 365
 366                 status = req->tcon->ntvfs_ops->fsinfo(req, &fsinfo);
 367                 if (!NT_STATUS_IS_OK(status)) {
 368                         return status;
 369                 }
 370
 371                 trans2_setup_reply(req, trans, 0, 64, 0);
 372
 373                 status = ndr_push_struct_blob(&guid_blob, req->mem_ctx,
 374                                               &fsinfo.objectid_information.out.guid,
 375                                               (ndr_push_flags_fn_t)ndr_push_GUID);
 376                 if (!NT_STATUS_IS_OK(status)) {
 377                         return status;
 378                 }
 379
 380                 memcpy(trans->out.data.data, guid_blob.data, GUID_SIZE);
 381
 382                 for (i=0;i<6;i++) {
 383                         SBVAL(trans->out.data.data, 16 + 8*i, fsinfo.objectid_information.out.unknown[i]);
 384                 }
 385                 return NT_STATUS_OK;
 386         }
 387
 388         return NT_STATUS_INVALID_LEVEL;
 389 }
 390
 391 /*
 392   fill in the reply from a qpathinfo or qfileinfo call
 393 */
 394 static NTSTATUS trans2_fileinfo_fill(struct request_context *req, struct smb_trans2 *trans,
 395                                      union smb_fileinfo *st)
 396 {
 397         uint_t i;
 398
 399         switch (st->generic.level) {
 400         case RAW_FILEINFO_GENERIC:
 401         case RAW_FILEINFO_GETATTR:
 402         case RAW_FILEINFO_GETATTRE:
 403                 /* handled elsewhere */
 404                 return NT_STATUS_INVALID_LEVEL;
 405
 406         case RAW_FILEINFO_BASIC_INFO:
 407         case RAW_FILEINFO_BASIC_INFORMATION:
 408                 trans2_setup_reply(req, trans, 2, 40, 0);
 409
 410                 SSVAL(trans->out.params.data, 0, 0);
 411                 push_nttime(trans->out.data.data,  0, st->basic_info.out.create_time);
 412                 push_nttime(trans->out.data.data,  8, st->basic_info.out.access_time);
 413                 push_nttime(trans->out.data.data, 16, st->basic_info.out.write_time);
 414                 push_nttime(trans->out.data.data, 24, st->basic_info.out.change_time);
 415                 SIVAL(trans->out.data.data,       32, st->basic_info.out.attrib);
 416                 SIVAL(trans->out.data.data,       36, 0); /* padding */
 417                 return NT_STATUS_OK;
 418
 419         case RAW_FILEINFO_STANDARD:
 420                 trans2_setup_reply(req, trans, 2, 22, 0);
 421
 422                 SSVAL(trans->out.params.data, 0, 0);
 423                 srv_push_dos_date2(req->smb_ctx, trans->out.data.data, 0, st->standard.out.create_time);
 424                 srv_push_dos_date2(req->smb_ctx, trans->out.data.data, 4, st->standard.out.access_time);
 425                 srv_push_dos_date2(req->smb_ctx, trans->out.data.data, 8, st->standard.out.write_time);
 426                 SIVAL(trans->out.data.data,        12, st->standard.out.size);
 427                 SIVAL(trans->out.data.data,        16, st->standard.out.alloc_size);
 428                 SSVAL(trans->out.data.data,        20, st->standard.out.attrib);
 429                 return NT_STATUS_OK;
 430
 431         case RAW_FILEINFO_EA_SIZE:
 432                 trans2_setup_reply(req, trans, 2, 26, 0);
 433
 434                 SSVAL(trans->out.params.data, 0, 0);
 435                 srv_push_dos_date2(req->smb_ctx, trans->out.data.data, 0, st->ea_size.out.create_time);
 436                 srv_push_dos_date2(req->smb_ctx, trans->out.data.data, 4, st->ea_size.out.access_time);
 437                 srv_push_dos_date2(req->smb_ctx, trans->out.data.data, 8, st->ea_size.out.write_time);
 438                 SIVAL(trans->out.data.data,        12, st->ea_size.out.size);
 439                 SIVAL(trans->out.data.data,        16, st->ea_size.out.alloc_size);
 440                 SSVAL(trans->out.data.data,        20, st->ea_size.out.attrib);
 441                 SIVAL(trans->out.data.data,        22, st->ea_size.out.ea_size);
 442                 return NT_STATUS_OK;
 443
 444         case RAW_FILEINFO_NETWORK_OPEN_INFORMATION:
 445                 trans2_setup_reply(req, trans, 2, 56, 0);
 446
 447                 SSVAL(trans->out.params.data, 0, 0);
 448                 push_nttime(trans->out.data.data,  0, st->network_open_information.out.create_time);
 449                 push_nttime(trans->out.data.data,  8, st->network_open_information.out.access_time);
 450                 push_nttime(trans->out.data.data, 16, st->network_open_information.out.write_time);
 451                 push_nttime(trans->out.data.data, 24, st->network_open_information.out.change_time);
 452                 SBVAL(trans->out.data.data,       32, st->network_open_information.out.alloc_size);
 453                 SBVAL(trans->out.data.data,       40, st->network_open_information.out.size);
 454                 SIVAL(trans->out.data.data,       48, st->network_open_information.out.attrib);
 455                 SIVAL(trans->out.data.data,       52, 0); /* padding */
 456                 return NT_STATUS_OK;
 457
 458         case RAW_FILEINFO_STANDARD_INFO:
 459         case RAW_FILEINFO_STANDARD_INFORMATION:
 460                 trans2_setup_reply(req, trans, 2, 24, 0);
 461                 SSVAL(trans->out.params.data, 0, 0);
 462                 SBVAL(trans->out.data.data,  0, st->standard_info.out.alloc_size);
 463                 SBVAL(trans->out.data.data,  8, st->standard_info.out.size);
 464                 SIVAL(trans->out.data.data, 16, st->standard_info.out.nlink);
 465                 SCVAL(trans->out.data.data, 20, st->standard_info.out.delete_pending);
 466                 SCVAL(trans->out.data.data, 21, st->standard_info.out.directory);
 467                 SSVAL(trans->out.data.data, 22, 0); /* padding */
 468                 return NT_STATUS_OK;
 469
 470         case RAW_FILEINFO_ATTRIBUTE_TAG_INFORMATION:
 471                 trans2_setup_reply(req, trans, 2, 8, 0);
 472                 SSVAL(trans->out.params.data, 0, 0);
 473                 SIVAL(trans->out.data.data,  0, st->attribute_tag_information.out.attrib);
 474                 SIVAL(trans->out.data.data,  4, st->attribute_tag_information.out.reparse_tag);
 475                 return NT_STATUS_OK;
 476
 477         case RAW_FILEINFO_EA_INFO:
 478         case RAW_FILEINFO_EA_INFORMATION:
 479                 trans2_setup_reply(req, trans, 2, 4, 0);
 480                 SSVAL(trans->out.params.data, 0, 0);
 481                 SIVAL(trans->out.data.data,  0, st->ea_info.out.ea_size);
 482                 return NT_STATUS_OK;
 483
 484         case RAW_FILEINFO_MODE_INFORMATION:
 485                 trans2_setup_reply(req, trans, 2, 4, 0);
 486                 SSVAL(trans->out.params.data, 0, 0);
 487                 SIVAL(trans->out.data.data,  0, st->mode_information.out.mode);
 488                 return NT_STATUS_OK;
 489
 490         case RAW_FILEINFO_ALIGNMENT_INFORMATION:
 491                 trans2_setup_reply(req, trans, 2, 4, 0);
 492                 SSVAL(trans->out.params.data, 0, 0);
 493                 SIVAL(trans->out.data.data,  0,
 494                       st->alignment_information.out.alignment_requirement);
 495                 return NT_STATUS_OK;
 496
 497         case RAW_FILEINFO_ALL_EAS:
 498                 if (st->all_eas.out.num_eas == 0) {
 499                         trans2_setup_reply(req, trans, 2, 4, 0);
 500                         SSVAL(trans->out.params.data, 0, 0);
 501                         SIVAL(trans->out.data.data,  0, 0);
 502                 } else {
 503                         uint32_t list_size = ea_list_size(st->all_eas.out.num_eas,
 504                                                         st->all_eas.out.eas);
 505                         trans2_setup_reply(req, trans, 2, list_size, 0);
 506                         SSVAL(trans->out.params.data, 0, 0);
 507                         ea_put_list(trans->out.data.data,
 508                                     st->all_eas.out.num_eas, st->all_eas.out.eas);
 509                 }
 510                 return NT_STATUS_OK;
 511
 512         case RAW_FILEINFO_ACCESS_INFORMATION:
 513                 trans2_setup_reply(req, trans, 2, 4, 0);
 514                 SSVAL(trans->out.params.data, 0, 0);
 515                 SIVAL(trans->out.data.data,  0, st->access_information.out.access_flags);
 516                 return NT_STATUS_OK;
 517
 518         case RAW_FILEINFO_POSITION_INFORMATION:
 519                 trans2_setup_reply(req, trans, 2, 8, 0);
 520                 SSVAL(trans->out.params.data, 0, 0);
 521                 SBVAL(trans->out.data.data,  0, st->position_information.out.position);
 522                 return NT_STATUS_OK;
 523
 524         case RAW_FILEINFO_COMPRESSION_INFO:
 525         case RAW_FILEINFO_COMPRESSION_INFORMATION:
 526                 trans2_setup_reply(req, trans, 2, 16, 0);
 527                 SSVAL(trans->out.params.data, 0, 0);
 528                 SBVAL(trans->out.data.data,  0, st->compression_info.out.compressed_size);
 529                 SSVAL(trans->out.data.data,  8, st->compression_info.out.format);
 530                 SCVAL(trans->out.data.data, 10, st->compression_info.out.unit_shift);
 531                 SCVAL(trans->out.data.data, 11, st->compression_info.out.chunk_shift);
 532                 SCVAL(trans->out.data.data, 12, st->compression_info.out.cluster_shift);
 533                 SSVAL(trans->out.data.data, 13, 0); /* 3 bytes padding */
 534                 SCVAL(trans->out.data.data, 15, 0);
 535                 return NT_STATUS_OK;
 536
 537         case RAW_FILEINFO_IS_NAME_VALID:
 538                 trans2_setup_reply(req, trans, 2, 0, 0);
 539                 SSVAL(trans->out.params.data, 0, 0);
 540                 return NT_STATUS_OK;
 541
 542         case RAW_FILEINFO_INTERNAL_INFORMATION:
 543                 trans2_setup_reply(req, trans, 2, 8, 0);
 544                 SSVAL(trans->out.params.data, 0, 0);
 545                 SBVAL(trans->out.data.data,  0, st->internal_information.out.file_id);
 546                 return NT_STATUS_OK;
 547
 548         case RAW_FILEINFO_ALL_INFO:
 549         case RAW_FILEINFO_ALL_INFORMATION:
 550                 trans2_setup_reply(req, trans, 2, 72, 0);
 551
 552                 SSVAL(trans->out.params.data, 0, 0);
 553                 push_nttime(trans->out.data.data,  0, st->all_info.out.create_time);
 554                 push_nttime(trans->out.data.data,  8, st->all_info.out.access_time);
 555                 push_nttime(trans->out.data.data, 16, st->all_info.out.write_time);
 556                 push_nttime(trans->out.data.data, 24, st->all_info.out.change_time);
 557                 SIVAL(trans->out.data.data,       32, st->all_info.out.attrib);
 558                 SBVAL(trans->out.data.data,       40, st->all_info.out.alloc_size);
 559                 SBVAL(trans->out.data.data,       48, st->all_info.out.size);
 560                 SIVAL(trans->out.data.data,       56, st->all_info.out.nlink);
 561                 SCVAL(trans->out.data.data,       60, st->all_info.out.delete_pending);
 562                 SCVAL(trans->out.data.data,       61, st->all_info.out.directory);
 563                 SSVAL(trans->out.data.data,       62, 0); /* padding */
 564                 SIVAL(trans->out.data.data,       64, st->all_info.out.ea_size);
 565                 trans2_append_data_string(req, trans, &st->all_info.out.fname,
 566                                           68, STR_UNICODE);
 567                 return NT_STATUS_OK;
 568
 569         case RAW_FILEINFO_NAME_INFO:
 570         case RAW_FILEINFO_NAME_INFORMATION:
 571                 trans2_setup_reply(req, trans, 2, 4, 0);
 572                 SSVAL(trans->out.params.data, 0, 0);
 573                 trans2_append_data_string(req, trans, &st->name_info.out.fname, 0, STR_UNICODE);
 574                 return NT_STATUS_OK;
 575
 576         case RAW_FILEINFO_ALT_NAME_INFO:
 577         case RAW_FILEINFO_ALT_NAME_INFORMATION:
 578                 trans2_setup_reply(req, trans, 2, 4, 0);
 579                 SSVAL(trans->out.params.data, 0, 0);
 580                 trans2_append_data_string(req, trans, &st->alt_name_info.out.fname, 0, STR_UNICODE);
 581                 return NT_STATUS_OK;
 582
 583         case RAW_FILEINFO_STREAM_INFO:
 584         case RAW_FILEINFO_STREAM_INFORMATION:
 585                 trans2_setup_reply(req, trans, 2, 0, 0);
 586
 587                 SSVAL(trans->out.params.data, 0, 0);
 588
 589                 for (i=0;i<st->stream_info.out.num_streams;i++) {
 590                         uint16_t data_size = trans->out.data.length;
 591                         char *data;
 592
 593                         trans2_grow_data(req, trans, data_size + 24);
 594                         data = trans->out.data.data + data_size;
 595                         SBVAL(data,  8, st->stream_info.out.streams[i].size);
 596                         SBVAL(data, 16, st->stream_info.out.streams[i].alloc_size);
 597                         trans2_append_data_string(req, trans,
 598                                                   &st->stream_info.out.streams[i].stream_name,
 599                                                   data_size + 4, STR_UNICODE);
 600                         if (i == st->stream_info.out.num_streams - 1) {
 601                                 SIVAL(trans->out.data.data, data_size, 0);
 602                         } else {
 603                                 trans2_grow_data_fill(req, trans, (trans->out.data.length+7)&~7);
 604                                 SIVAL(trans->out.data.data, data_size,
 605                                       trans->out.data.length - data_size);
 606                         }
 607                 }
 608                 return NT_STATUS_OK;
 609         }
 610
 611         return NT_STATUS_INVALID_LEVEL;
 612 }
 613
 614 /*
 615   trans2 qpathinfo implementation
 616 */
 617 static NTSTATUS trans2_qpathinfo(struct request_context *req, struct smb_trans2 *trans)
 618 {
 619         union smb_fileinfo st;
 620         NTSTATUS status;
 621         uint16_t level;
 622
 623         /* make sure we got enough parameters */
 624         if (trans->in.params.length < 8) {
 625                 return NT_STATUS_FOOBAR;
 626         }
 627
 628         level = SVAL(trans->in.params.data, 0);
 629
 630         trans2_pull_blob_string(req, &trans->in.params, 6, &st.generic.in.fname, 0);
 631         if (st.generic.in.fname == NULL) {
 632                 return NT_STATUS_FOOBAR;
 633         }
 634
 635         /* work out the backend level - we make it 1-1 in the header */
 636         st.generic.level = (enum fileinfo_level)level;
 637         if (st.generic.level >= RAW_FILEINFO_GENERIC) {
 638                 return NT_STATUS_INVALID_LEVEL;
 639         }
 640
 641         /* call the backend */
 642         status = req->tcon->ntvfs_ops->qpathinfo(req, &st);
 643         if (!NT_STATUS_IS_OK(status)) {
 644                 return status;
 645         }
 646
 647         /* fill in the reply parameters */
 648         status = trans2_fileinfo_fill(req, trans, &st);
 649
 650         return status;
 651 }
 652
 653
 654 /*
 655   trans2 qpathinfo implementation
 656 */
 657 static NTSTATUS trans2_qfileinfo(struct request_context *req, struct smb_trans2 *trans)
 658 {
 659         union smb_fileinfo st;
 660         NTSTATUS status;
 661         uint16_t level;
 662
 663         /* make sure we got enough parameters */
 664         if (trans->in.params.length < 4) {
 665                 return NT_STATUS_FOOBAR;
 666         }
 667
 668         st.generic.in.fnum  = SVAL(trans->in.params.data, 0);
 669         level = SVAL(trans->in.params.data, 2);
 670
 671         /* work out the backend level - we make it 1-1 in the header */
 672         st.generic.level = (enum fileinfo_level)level;
 673         if (st.generic.level >= RAW_FILEINFO_GENERIC) {
 674                 return NT_STATUS_INVALID_LEVEL;
 675         }
 676
 677         /* call the backend */
 678         status = req->tcon->ntvfs_ops->qfileinfo(req, &st);
 679         if (!NT_STATUS_IS_OK(status)) {
 680                 return status;
 681         }
 682
 683         /* fill in the reply parameters */
 684         status = trans2_fileinfo_fill(req, trans, &st);
 685
 686         return status;
 687 }
 688
 689
 690 /*
 691   parse a trans2 setfileinfo/setpathinfo data blob
 692 */
 693 static NTSTATUS trans2_parse_sfileinfo(struct request_context *req,
 694                                        union smb_setfileinfo *st,
 695                                        const DATA_BLOB *blob)
 696 {
 697         uint32_t len;
 698
 699         switch (st->generic.level) {
 700         case RAW_SFILEINFO_GENERIC:
 701         case RAW_SFILEINFO_SETATTR:
 702         case RAW_SFILEINFO_SETATTRE:
 703                 /* handled elsewhere */
 704                 return NT_STATUS_INVALID_LEVEL;
 705
 706         case RAW_SFILEINFO_STANDARD:
 707                 CHECK_MIN_BLOB_SIZE(blob, 12);
 708                 st->standard.in.create_time = srv_pull_dos_date2(req->smb_ctx, blob->data + 0);
 709                 st->standard.in.access_time = srv_pull_dos_date2(req->smb_ctx, blob->data + 4);
 710                 st->standard.in.write_time  = srv_pull_dos_date2(req->smb_ctx, blob->data + 8);
 711                 return NT_STATUS_OK;
 712
 713         case RAW_SFILEINFO_EA_SET:
 714                 CHECK_MIN_BLOB_SIZE(blob, 4);
 715                 len = IVAL(blob->data, 0);
 716                 if (len > blob->length || len < 4) {
 717                         return NT_STATUS_INFO_LENGTH_MISMATCH;
 718                 }
 719                 {
 720                         DATA_BLOB blob2;
 721                         blob2.data = blob->data+4;
 722                         blob2.length = len-4;
 723                         len = ea_pull_struct(&blob2, req->mem_ctx, &st->ea_set.in.ea);
 724                 }
 725                 if (len == 0) {
 726                         return NT_STATUS_INVALID_PARAMETER;
 727                 }
 728                 return NT_STATUS_OK;
 729
 730         case SMB_SFILEINFO_BASIC_INFO:
 731         case SMB_SFILEINFO_BASIC_INFORMATION:
 732                 CHECK_MIN_BLOB_SIZE(blob, 36);
 733                 st->basic_info.in.create_time = pull_nttime(blob->data,  0);
 734                 st->basic_info.in.access_time = pull_nttime(blob->data,  8);
 735                 st->basic_info.in.write_time =  pull_nttime(blob->data, 16);
 736                 st->basic_info.in.change_time = pull_nttime(blob->data, 24);
 737                 st->basic_info.in.attrib =      IVAL(blob->data,        32);
 738                 return NT_STATUS_OK;
 739
 740         case SMB_SFILEINFO_DISPOSITION_INFO:
 741         case SMB_SFILEINFO_DISPOSITION_INFORMATION:
 742                 CHECK_MIN_BLOB_SIZE(blob, 1);
 743                 st->disposition_info.in.delete_on_close = CVAL(blob->data, 0);
 744                 return NT_STATUS_OK;
 745
 746         case SMB_SFILEINFO_ALLOCATION_INFO:
 747         case SMB_SFILEINFO_ALLOCATION_INFORMATION:
 748                 CHECK_MIN_BLOB_SIZE(blob, 8);
 749                 st->allocation_info.in.alloc_size = BVAL(blob->data, 0);
 750                 return NT_STATUS_OK;
 751
 752         case RAW_SFILEINFO_END_OF_FILE_INFO:
 753         case RAW_SFILEINFO_END_OF_FILE_INFORMATION:
 754                 CHECK_MIN_BLOB_SIZE(blob, 8);
 755                 st->end_of_file_info.in.size = BVAL(blob->data, 0);
 756                 return NT_STATUS_OK;
 757
 758         case RAW_SFILEINFO_RENAME_INFORMATION: {
 759                 DATA_BLOB blob2;
 760
 761                 CHECK_MIN_BLOB_SIZE(blob, 12);
 762                 st->rename_information.in.overwrite = CVAL(blob->data, 0);
 763                 st->rename_information.in.root_fid  = IVAL(blob->data, 4);
 764                 len                                 = IVAL(blob->data, 8);
 765                 blob2.data = blob->data+12;
 766                 blob2.length = MIN(blob->length, len);
 767                 trans2_pull_blob_string(req, &blob2, 0,
 768                                         &st->rename_information.in.new_name, STR_UNICODE);
 769                 return NT_STATUS_OK;
 770         }
 771
 772         case RAW_SFILEINFO_POSITION_INFORMATION:
 773                 CHECK_MIN_BLOB_SIZE(blob, 8);
 774                 st->position_information.in.position = BVAL(blob->data, 0);
 775                 return NT_STATUS_OK;
 776
 777         case RAW_SFILEINFO_MODE_INFORMATION:
 778                 CHECK_MIN_BLOB_SIZE(blob, 4);
 779                 st->mode_information.in.mode = IVAL(blob->data, 0);
 780                 return NT_STATUS_OK;
 781         }
 782
 783         return NT_STATUS_INVALID_LEVEL;
 784 }
 785
 786 /*
 787   trans2 setfileinfo implementation
 788 */
 789 static NTSTATUS trans2_setfileinfo(struct request_context *req, struct smb_trans2 *trans)
 790 {
 791         union smb_setfileinfo st;
 792         NTSTATUS status;
 793         uint16_t level, fnum;
 794         DATA_BLOB *blob;
 795
 796         /* make sure we got enough parameters */
 797         if (trans->in.params.length < 4) {
 798                 return NT_STATUS_FOOBAR;
 799         }
 800
 801         fnum  = SVAL(trans->in.params.data, 0);
 802         level = SVAL(trans->in.params.data, 2);
 803
 804         blob = &trans->in.data;
 805
 806         st.generic.file.fnum = fnum;
 807         st.generic.level = (enum setfileinfo_level)level;
 808
 809         status = trans2_parse_sfileinfo(req, &st, blob);
 810         if (!NT_STATUS_IS_OK(status)) {
 811                 return status;
 812         }
 813
 814         status = req->tcon->ntvfs_ops->setfileinfo(req, &st);
 815         if (!NT_STATUS_IS_OK(status)) {
 816                 return status;
 817         }
 818
 819         trans2_setup_reply(req, trans, 2, 0, 0);
 820         SSVAL(trans->out.params.data, 0, 0);
 821         return NT_STATUS_OK;
 822 }
 823
 824 /*
 825   trans2 setpathinfo implementation
 826 */
 827 static NTSTATUS trans2_setpathinfo(struct request_context *req, struct smb_trans2 *trans)
 828 {
 829         union smb_setfileinfo st;
 830         NTSTATUS status;
 831         uint16_t level;
 832         DATA_BLOB *blob;
 833
 834         /* make sure we got enough parameters */
 835         if (trans->in.params.length < 4) {
 836                 return NT_STATUS_FOOBAR;
 837         }
 838
 839         level = SVAL(trans->in.params.data, 0);
 840         blob = &trans->in.data;
 841         st.generic.level = (enum setfileinfo_level)level;
 842
 843         trans2_pull_blob_string(req, &trans->in.params, 4, &st.generic.file.fname, 0);
 844         if (st.generic.file.fname == NULL) {
 845                 return NT_STATUS_FOOBAR;
 846         }
 847
 848         status = trans2_parse_sfileinfo(req, &st, blob);
 849         if (!NT_STATUS_IS_OK(status)) {
 850                 return status;
 851         }
 852
 853         status = req->tcon->ntvfs_ops->setpathinfo(req, &st);
 854         if (!NT_STATUS_IS_OK(status)) {
 855                 return status;
 856         }
 857
 858         trans2_setup_reply(req, trans, 2, 0, 0);
 859         SSVAL(trans->out.params.data, 0, 0);
 860         return NT_STATUS_OK;
 861 }
 862
 863
 864 /* a structure to encapsulate the state information about an in-progress ffirst/fnext operation */
 865 struct find_state {
 866         struct request_context *req;
 867         struct smb_trans2 *trans;
 868         enum search_level level;
 869         uint16_t last_entry_offset;
 870         uint16_t flags;
 871 };
 872
 873 /*
 874   fill a single entry in a trans2 find reply
 875 */
 876 static void find_fill_info(struct request_context *req,
 877                            struct smb_trans2 *trans,
 878                            struct find_state *state,
 879                            union smb_search_data *file)
 880 {
 881         char *data;
 882         uint_t ofs = trans->out.data.length;
 883
 884         switch (state->level) {
 885         case RAW_SEARCH_SEARCH:
 886         case RAW_SEARCH_GENERIC:
 887                 /* handled elsewhere */
 888                 break;
 889
 890         case RAW_SEARCH_STANDARD:
 891                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 892                         trans2_grow_data(req, trans, ofs + 27);
 893                         SIVAL(trans->out.data.data, ofs, file->standard.resume_key);
 894                         ofs += 4;
 895                 } else {
 896                         trans2_grow_data(req, trans, ofs + 23);
 897                 }
 898                 data = trans->out.data.data + ofs;
 899                 srv_push_dos_date2(req->smb_ctx, data, 0, file->standard.create_time);
 900                 srv_push_dos_date2(req->smb_ctx, data, 4, file->standard.access_time);
 901                 srv_push_dos_date2(req->smb_ctx, data, 8, file->standard.write_time);
 902                 SIVAL(data, 12, file->standard.size);
 903                 SIVAL(data, 16, file->standard.alloc_size);
 904                 SSVAL(data, 20, file->standard.attrib);
 905                 trans2_append_data_string(req, trans, &file->standard.name,
 906                                           ofs + 22, STR_LEN8BIT | STR_TERMINATE | STR_LEN_NOTERM);
 907                 break;
 908
 909         case RAW_SEARCH_EA_SIZE:
 910                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 911                         trans2_grow_data(req, trans, ofs + 31);
 912                         SIVAL(trans->out.data.data, ofs, file->ea_size.resume_key);
 913                         ofs += 4;
 914                 } else {
 915                         trans2_grow_data(req, trans, ofs + 27);
 916                 }
 917                 data = trans->out.data.data + ofs;
 918                 srv_push_dos_date2(req->smb_ctx, data, 0, file->ea_size.create_time);
 919                 srv_push_dos_date2(req->smb_ctx, data, 4, file->ea_size.access_time);
 920                 srv_push_dos_date2(req->smb_ctx, data, 8, file->ea_size.write_time);
 921                 SIVAL(data, 12, file->ea_size.size);
 922                 SIVAL(data, 16, file->ea_size.alloc_size);
 923                 SSVAL(data, 20, file->ea_size.attrib);
 924                 SIVAL(data, 22, file->ea_size.ea_size);
 925                 trans2_append_data_string(req, trans, &file->ea_size.name,
 926                                           ofs + 26, STR_LEN8BIT | STR_TERMINATE | STR_NOALIGN);
 927                 break;
 928
 929         case RAW_SEARCH_DIRECTORY_INFO:
 930                 trans2_grow_data(req, trans, ofs + 64);
 931                 data = trans->out.data.data + ofs;
 932                 SIVAL(data,          4, file->directory_info.file_index);
 933                 push_nttime(data,    8, file->directory_info.create_time);
 934                 push_nttime(data,   16, file->directory_info.access_time);
 935                 push_nttime(data,   24, file->directory_info.write_time);
 936                 push_nttime(data,   32, file->directory_info.change_time);
 937                 SBVAL(data,         40, file->directory_info.size);
 938                 SBVAL(data,         48, file->directory_info.alloc_size);
 939                 SIVAL(data,         56, file->directory_info.attrib);
 940                 trans2_append_data_string(req, trans, &file->directory_info.name,
 941                                           ofs + 60, STR_TERMINATE_ASCII);
 942                 data = trans->out.data.data + ofs;
 943                 SIVAL(data,          0, trans->out.data.length - ofs);
 944                 break;
 945
 946         case RAW_SEARCH_FULL_DIRECTORY_INFO:
 947                 trans2_grow_data(req, trans, ofs + 68);
 948                 data = trans->out.data.data + ofs;
 949                 SIVAL(data,          4, file->full_directory_info.file_index);
 950                 push_nttime(data,    8, file->full_directory_info.create_time);
 951                 push_nttime(data,   16, file->full_directory_info.access_time);
 952                 push_nttime(data,   24, file->full_directory_info.write_time);
 953                 push_nttime(data,   32, file->full_directory_info.change_time);
 954                 SBVAL(data,         40, file->full_directory_info.size);
 955                 SBVAL(data,         48, file->full_directory_info.alloc_size);
 956                 SIVAL(data,         56, file->full_directory_info.attrib);
 957                 SIVAL(data,         64, file->full_directory_info.ea_size);
 958                 trans2_append_data_string(req, trans, &file->full_directory_info.name,
 959                                           ofs + 60, STR_TERMINATE_ASCII);
 960                 data = trans->out.data.data + ofs;
 961                 SIVAL(data,          0, trans->out.data.length - ofs);
 962                 break;
 963
 964         case RAW_SEARCH_NAME_INFO:
 965                 trans2_grow_data(req, trans, ofs + 12);
 966                 data = trans->out.data.data + ofs;
 967                 SIVAL(data,          4, file->name_info.file_index);
 968                 trans2_append_data_string(req, trans, &file->name_info.name,
 969                                           ofs + 8, STR_TERMINATE_ASCII);
 970                 data = trans->out.data.data + ofs;
 971                 SIVAL(data,          0, trans->out.data.length - ofs);
 972                 break;
 973
 974         case RAW_SEARCH_BOTH_DIRECTORY_INFO:
 975                 trans2_grow_data(req, trans, ofs + 94);
 976                 data = trans->out.data.data + ofs;
 977                 SIVAL(data,          4, file->both_directory_info.file_index);
 978                 push_nttime(data,    8, file->both_directory_info.create_time);
 979                 push_nttime(data,   16, file->both_directory_info.access_time);
 980                 push_nttime(data,   24, file->both_directory_info.write_time);
 981                 push_nttime(data,   32, file->both_directory_info.change_time);
 982                 SBVAL(data,         40, file->both_directory_info.size);
 983                 SBVAL(data,         48, file->both_directory_info.alloc_size);
 984                 SIVAL(data,         56, file->both_directory_info.attrib);
 985                 SIVAL(data,         64, file->both_directory_info.ea_size);
 986                 SCVAL(data,         69, 0); /* reserved */
 987                 memset(data+70,0,24);
 988                 trans2_push_data_string(req, trans,
 989                                         68 + ofs, 70 + ofs,
 990                                         &file->both_directory_info.short_name,
 991                                         24, STR_UNICODE | STR_LEN8BIT);
 992                 trans2_append_data_string(req, trans, &file->both_directory_info.name,
 993                                           ofs + 60, STR_TERMINATE_ASCII);
 994                 data = trans->out.data.data + ofs;
 995                 SIVAL(data,          0, trans->out.data.length - ofs);
 996                 break;
 997
 998         case RAW_SEARCH_ID_FULL_DIRECTORY_INFO:
 999                 trans2_grow_data(req, trans, ofs + 80);
1000                 data = trans->out.data.data + ofs;
1001                 SIVAL(data,          4, file->id_full_directory_info.file_index);
1002                 push_nttime(data,    8, file->id_full_directory_info.create_time);
1003                 push_nttime(data,   16, file->id_full_directory_info.access_time);
1004                 push_nttime(data,   24, file->id_full_directory_info.write_time);
1005                 push_nttime(data,   32, file->id_full_directory_info.change_time);
1006                 SBVAL(data,         40, file->id_full_directory_info.size);
1007                 SBVAL(data,         48, file->id_full_directory_info.alloc_size);
1008                 SIVAL(data,         56, file->id_full_directory_info.attrib);
1009                 SIVAL(data,         64, file->id_full_directory_info.ea_size);
1010                 SIVAL(data,         68, 0); /* padding */
1011                 SBVAL(data,         72, file->id_full_directory_info.file_id);
1012                 trans2_append_data_string(req, trans, &file->id_full_directory_info.name,
1013                                           ofs + 60, STR_TERMINATE_ASCII);
1014                 data = trans->out.data.data + ofs;
1015                 SIVAL(data,          0, trans->out.data.length - ofs);
1016                 break;
1017
1018         case RAW_SEARCH_ID_BOTH_DIRECTORY_INFO:
1019                 trans2_grow_data(req, trans, ofs + 104);
1020                 data = trans->out.data.data + ofs;
1021                 SIVAL(data,          4, file->id_both_directory_info.file_index);
1022                 push_nttime(data,    8, file->id_both_directory_info.create_time);
1023                 push_nttime(data,   16, file->id_both_directory_info.access_time);
1024                 push_nttime(data,   24, file->id_both_directory_info.write_time);
1025                 push_nttime(data,   32, file->id_both_directory_info.change_time);
1026                 SBVAL(data,         40, file->id_both_directory_info.size);
1027                 SBVAL(data,         48, file->id_both_directory_info.alloc_size);
1028                 SIVAL(data,         56, file->id_both_directory_info.attrib);
1029                 SIVAL(data,         64, file->id_both_directory_info.ea_size);
1030                 SCVAL(data,         69, 0); /* reserved */
1031                 memset(data+70,0,24);
1032                 trans2_push_data_string(req, trans,
1033                                         68 + ofs, 70 + ofs,
1034                                         &file->id_both_directory_info.short_name,
1035                                         24, STR_UNICODE | STR_LEN8BIT);
1036                 SBVAL(data,         94, file->id_both_directory_info.file_id);
1037                 SSVAL(data,        102, 0); /* reserved? */
1038                 trans2_append_data_string(req, trans, &file->id_both_directory_info.name,
1039                                           ofs + 60, STR_TERMINATE_ASCII);
1040                 data = trans->out.data.data + ofs;
1041                 SIVAL(data,          0, trans->out.data.length - ofs);
1042                 break;
1043         }
1044 }
1045
1046 /* callback function for trans2 findfirst/findnext */
1047 static BOOL find_callback(void *private, union smb_search_data *file)
1048 {
1049         struct find_state *state = (struct find_state *)private;
1050         struct smb_trans2 *trans = state->trans;
1051         uint_t old_length;
1052
1053         old_length = trans->out.data.length;
1054
1055         find_fill_info(state->req, trans, state, file);
1056
1057         /* see if we have gone beyond the user specified maximum */
1058         if (trans->out.data.length > trans->in.max_data) {
1059                 /* restore the old length and tell the backend to stop */
1060                 trans2_grow_data(state->req, trans, old_length);
1061                 return False;
1062         }
1063
1064         state->last_entry_offset = old_length;
1065         return True;
1066 }
1067
1068
1069 /*
1070   trans2 findfirst implementation
1071 */
1072 static NTSTATUS trans2_findfirst(struct request_context *req, struct smb_trans2 *trans)
1073 {
1074         union smb_search_first search;
1075         NTSTATUS status;
1076         uint16_t level;
1077         char *param;
1078         struct find_state state;
1079
1080         /* make sure we got all the parameters */
1081         if (trans->in.params.length < 14) {
1082                 return NT_STATUS_FOOBAR;
1083         }
1084
1085         search.t2ffirst.in.search_attrib = SVAL(trans->in.params.data, 0);
1086         search.t2ffirst.in.max_count     = SVAL(trans->in.params.data, 2);
1087         search.t2ffirst.in.flags         = SVAL(trans->in.params.data, 4);
1088         level                            = SVAL(trans->in.params.data, 6);
1089         search.t2ffirst.in.storage_type  = IVAL(trans->in.params.data, 8);
1090
1091         trans2_pull_blob_string(req, &trans->in.params, 12, &search.t2ffirst.in.pattern, 0);
1092         if (search.t2ffirst.in.pattern == NULL) {
1093                 return NT_STATUS_FOOBAR;
1094         }
1095
1096         search.t2ffirst.level = (enum search_level)level;
1097         if (search.t2ffirst.level >= RAW_SEARCH_GENERIC) {
1098                 return NT_STATUS_INVALID_LEVEL;
1099         }
1100
1101         /* setup the private state structure that the backend will give us in the callback */
1102         state.req = req;
1103         state.trans = trans;
1104         state.level = search.t2ffirst.level;
1105         state.last_entry_offset = 0;
1106         state.flags = search.t2ffirst.in.flags;
1107
1108         /* setup for just a header in the reply */
1109         trans2_setup_reply(req, trans, 10, 0, 0);
1110
1111         /* call the backend */
1112         status = req->tcon->ntvfs_ops->search_first(req, &search, &state, find_callback);
1113         if (!NT_STATUS_IS_OK(status)) {
1114                 return status;
1115         }
1116
1117         /* fill in the findfirst reply header */
1118         param = trans->out.params.data;
1119         SSVAL(param, VWV(0), search.t2ffirst.out.handle);
1120         SSVAL(param, VWV(1), search.t2ffirst.out.count);
1121         SSVAL(param, VWV(2), search.t2ffirst.out.end_of_search);
1122         SSVAL(param, VWV(3), 0);
1123         SSVAL(param, VWV(4), state.last_entry_offset);
1124
1125         return NT_STATUS_OK;
1126 }
1127
1128
1129 /*
1130   trans2 findnext implementation
1131 */
1132 static NTSTATUS trans2_findnext(struct request_context *req, struct smb_trans2 *trans)
1133 {
1134         union smb_search_next search;
1135         NTSTATUS status;
1136         uint16_t level;
1137         char *param;
1138         struct find_state state;
1139
1140         /* make sure we got all the parameters */
1141         if (trans->in.params.length < 12) {
1142                 return NT_STATUS_FOOBAR;
1143         }
1144
1145         search.t2fnext.in.handle        = SVAL(trans->in.params.data, 0);
1146         search.t2fnext.in.max_count     = SVAL(trans->in.params.data, 2);
1147         level                           = SVAL(trans->in.params.data, 4);
1148         search.t2fnext.in.resume_key    = IVAL(trans->in.params.data, 6);
1149         search.t2fnext.in.flags         = SVAL(trans->in.params.data, 10);
1150
1151         trans2_pull_blob_string(req, &trans->in.params, 12, &search.t2fnext.in.last_name, 0);
1152         if (search.t2fnext.in.last_name == NULL) {
1153                 return NT_STATUS_FOOBAR;
1154         }
1155
1156         search.t2fnext.level = (enum search_level)level;
1157         if (search.t2fnext.level >= RAW_SEARCH_GENERIC) {
1158                 return NT_STATUS_INVALID_LEVEL;
1159         }
1160
1161         /* setup the private state structure that the backend will give us in the callback */
1162         state.req = req;
1163         state.trans = trans;
1164         state.level = search.t2fnext.level;
1165         state.last_entry_offset = 0;
1166         state.flags = search.t2fnext.in.flags;
1167
1168         /* setup for just a header in the reply */
1169         trans2_setup_reply(req, trans, 8, 0, 0);
1170
1171         /* call the backend */
1172         status = req->tcon->ntvfs_ops->search_next(req, &search, &state, find_callback);
1173         if (!NT_STATUS_IS_OK(status)) {
1174                 return status;
1175         }
1176
1177         /* fill in the findfirst reply header */
1178         param = trans->out.params.data;
1179         SSVAL(param, VWV(0), search.t2fnext.out.count);
1180         SSVAL(param, VWV(1), search.t2fnext.out.end_of_search);
1181         SSVAL(param, VWV(2), 0);
1182         SSVAL(param, VWV(3), state.last_entry_offset);
1183
1184         return NT_STATUS_OK;
1185 }
1186
1187
1188 /*
1189   backend for trans2 requests
1190 */
1191 static NTSTATUS trans2_backend(struct request_context *req, struct smb_trans2 *trans)
1192 {
1193         if (req->tcon->ntvfs_ops->trans2 != NULL) {
1194                 /* direct trans2 pass thru */
1195                 return req->tcon->ntvfs_ops->trans2(req, trans);
1196         }
1197
1198         /* must have at least one setup word */
1199         if (trans->in.setup_count < 1) {
1200                 return NT_STATUS_FOOBAR;
1201         }
1202
1203         /* the trans2 command is in setup[0] */
1204         switch (trans->in.setup[0]) {
1205         case TRANSACT2_FINDFIRST:
1206                 return trans2_findfirst(req, trans);
1207         case TRANSACT2_FINDNEXT:
1208                 return trans2_findnext(req, trans);
1209         case TRANSACT2_QPATHINFO:
1210                 return trans2_qpathinfo(req, trans);
1211         case TRANSACT2_QFILEINFO:
1212                 return trans2_qfileinfo(req, trans);
1213         case TRANSACT2_SETFILEINFO:
1214                 return trans2_setfileinfo(req, trans);
1215         case TRANSACT2_SETPATHINFO:
1216                 return trans2_setpathinfo(req, trans);
1217         case TRANSACT2_QFSINFO:
1218                 return trans2_qfsinfo(req, trans);
1219         }
1220
1221         /* an unknown trans2 command */
1222         return NT_STATUS_FOOBAR;
1223 }
1224
1225
1226 /*
1227   backend for trans requests
1228 */
1229 static NTSTATUS trans_backend(struct request_context *req, struct smb_trans2 *trans)
1230 {
1231         if (!req->tcon->ntvfs_ops->trans) {
1232                 return NT_STATUS_NOT_IMPLEMENTED;
1233         }
1234         return req->tcon->ntvfs_ops->trans(req, trans);
1235 }
1236
1237
1238 /****************************************************************************
1239  Reply to an SMBtrans or SMBtrans2 request
1240 ****************************************************************************/
1241 void reply_trans_generic(struct request_context *req, uint8_t command)
1242 {
1243         struct smb_trans2 trans;
1244         int i;
1245         uint16_t param_ofs, data_ofs;
1246         uint16_t param_count, data_count;
1247         uint16_t params_left, data_left;
1248         uint16_t param_total, data_total;
1249         char *params, *data;
1250         NTSTATUS status;
1251
1252         /* parse request */
1253         if (req->in.wct < 14) {
1254                 req_reply_error(req, NT_STATUS_FOOBAR);
1255                 return;
1256         }
1257
1258         param_total          = SVAL(req->in.vwv, VWV(0));
1259         data_total           = SVAL(req->in.vwv, VWV(1));
1260         trans.in.max_param   = SVAL(req->in.vwv, VWV(2));
1261         trans.in.max_data    = SVAL(req->in.vwv, VWV(3));
1262         trans.in.max_setup   = CVAL(req->in.vwv, VWV(4));
1263         trans.in.flags       = SVAL(req->in.vwv, VWV(5));
1264         trans.in.timeout     = IVAL(req->in.vwv, VWV(6));
1265         param_count          = SVAL(req->in.vwv, VWV(9));
1266         param_ofs            = SVAL(req->in.vwv, VWV(10));
1267         data_count           = SVAL(req->in.vwv, VWV(11));
1268         data_ofs             = SVAL(req->in.vwv, VWV(12));
1269         trans.in.setup_count = CVAL(req->in.vwv, VWV(13));
1270
1271         if (req->in.wct != 14 + trans.in.setup_count) {
1272                 req_reply_dos_error(req, ERRSRV, ERRerror);
1273                 return;
1274         }
1275
1276         /* parse out the setup words */
1277         trans.in.setup = talloc(req->mem_ctx, trans.in.setup_count * sizeof(uint16_t));
1278         if (!trans.in.setup) {
1279                 req_reply_error(req, NT_STATUS_NO_MEMORY);
1280                 return;
1281         }
1282         for (i=0;i<trans.in.setup_count;i++) {
1283                 trans.in.setup[i] = SVAL(req->in.vwv, VWV(14+i));
1284         }
1285
1286         if (command == SMBtrans) {
1287                 req_pull_string(req, &trans.in.trans_name, req->in.data, -1, STR_TERMINATE);
1288         }
1289
1290         if (!req_pull_blob(req, req->in.hdr + param_ofs, param_count, &trans.in.params) ||
1291             !req_pull_blob(req, req->in.hdr + data_ofs, data_count, &trans.in.data)) {
1292                 req_reply_error(req, NT_STATUS_FOOBAR);
1293                 return;
1294         }
1295
1296         /* is it a partial request? if so, then send a 'send more' message */
1297         if (param_total > param_count ||
1298             data_total > data_count) {
1299                 DEBUG(0,("REWRITE: not handling partial trans requests!\n"));
1300                 return;
1301         }
1302
1303         /* its a full request, give it to the backend */
1304         if (command == SMBtrans) {
1305                 status = trans_backend(req, &trans);
1306         } else {
1307                 status = trans2_backend(req, &trans);
1308         }
1309
1310         if (NT_STATUS_IS_ERR(status)) {
1311                 req_reply_error(req, status);
1312                 return;
1313         }
1314
1315         params_left = trans.out.params.length;
1316         data_left   = trans.out.data.length;
1317         params      = trans.out.params.data;
1318         data        = trans.out.data.data;
1319
1320         req->control_flags |= REQ_CONTROL_PROTECTED;
1321
1322         /* we need to divide up the reply into chunks that fit into
1323            the negotiated buffer size */
1324         do {
1325                 uint16_t this_data, this_param, max_bytes;
1326                 uint_t align1 = 1, align2 = (params_left ? 2 : 0);
1327
1328                 req_setup_reply(req, 10 + trans.out.setup_count, 0);
1329
1330                 if (!NT_STATUS_IS_OK(status)) {
1331                         req_setup_error(req, status);
1332                 }
1333
1334                 max_bytes = req_max_data(req) - (align1 + align2);
1335
1336                 this_param = params_left;
1337                 if (this_param > max_bytes) {
1338                         this_param = max_bytes;
1339                 }
1340                 max_bytes -= this_param;
1341
1342                 this_data = data_left;
1343                 if (this_data > max_bytes) {
1344                         this_data = max_bytes;
1345                 }
1346
1347                 req_grow_data(req, this_param + this_data + (align1 + align2));
1348
1349                 SSVAL(req->out.vwv, VWV(0), trans.out.params.length);
1350                 SSVAL(req->out.vwv, VWV(1), trans.out.data.length);
1351                 SSVAL(req->out.vwv, VWV(2), 0);
1352
1353                 SSVAL(req->out.vwv, VWV(3), this_param);
1354                 SSVAL(req->out.vwv, VWV(4), align1 + PTR_DIFF(req->out.data, req->out.hdr));
1355                 SSVAL(req->out.vwv, VWV(5), PTR_DIFF(params, trans.out.params.data));
1356
1357                 SSVAL(req->out.vwv, VWV(6), this_data);
1358                 SSVAL(req->out.vwv, VWV(7), align1 + align2 +
1359                       PTR_DIFF(req->out.data + this_param, req->out.hdr));
1360                 SSVAL(req->out.vwv, VWV(8), PTR_DIFF(data, trans.out.data.data));
1361
1362                 SSVAL(req->out.vwv, VWV(9), trans.out.setup_count);
1363                 for (i=0;i<trans.out.setup_count;i++) {
1364                         SSVAL(req->out.vwv, VWV(10+i), trans.out.setup[i]);
1365                 }
1366
1367                 memset(req->out.data, 0, align1);
1368                 if (this_param != 0) {
1369                         memcpy(req->out.data + align1, params, this_param);
1370                 }
1371                 memset(req->out.data+this_param+align1, 0, align2);
1372                 if (this_data != 0) {
1373                         memcpy(req->out.data+this_param+align1+align2, data, this_data);
1374                 }
1375
1376                 params_left -= this_param;
1377                 data_left -= this_data;
1378                 params += this_param;
1379                 data += this_data;
1380
1381                 /* if this is the last chunk then the request can be destroyed */
1382                 if (params_left == 0 && data_left == 0) {
1383                         req->control_flags &= ~REQ_CONTROL_PROTECTED;
1384                 }
1385
1386                 req_send_reply(req);
1387         } while (params_left != 0 || data_left != 0);
1388 }
1389
1390
1391 /****************************************************************************
1392  Reply to an SMBtrans2
1393 ****************************************************************************/
1394 void reply_trans2(struct request_context *req)
1395 {
1396         reply_trans_generic(req, SMBtrans2);
1397 }
1398
1399 /****************************************************************************
1400  Reply to an SMBtrans
1401 ****************************************************************************/
1402 void reply_trans(struct request_context *req)
1403 {
1404         reply_trans_generic(req, SMBtrans);
1405 }
1406
1407 /****************************************************************************
1408  Reply to an SMBtranss2 request
1409 ****************************************************************************/
1410 void reply_transs2(struct request_context *req)
1411 {
1412         req_reply_error(req, NT_STATUS_FOOBAR);
1413 }
1414
1415