source3/smbd/smb2_create.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Core SMB2 server
   4
   5    Copyright (C) Stefan Metzmacher 2009
   6    Copyright (C) Jeremy Allison 2010
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "printing.h"
  24 #include "smbd/smbd.h"
  25 #include "smbd/globals.h"
  26 #include "../libcli/smb/smb_common.h"
  27 #include "../librpc/gen_ndr/ndr_security.h"
  28
  29 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level)
  30 {
  31         switch(in_oplock_level) {
  32         case SMB2_OPLOCK_LEVEL_NONE:
  33                 return NO_OPLOCK;
  34         case SMB2_OPLOCK_LEVEL_II:
  35                 return LEVEL_II_OPLOCK;
  36         case SMB2_OPLOCK_LEVEL_EXCLUSIVE:
  37                 return EXCLUSIVE_OPLOCK;
  38         case SMB2_OPLOCK_LEVEL_BATCH:
  39                 return BATCH_OPLOCK;
  40         case SMB2_OPLOCK_LEVEL_LEASE:
  41                 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
  42                         "LEASE_OPLOCK_REQUESTED\n"));
  43                 return NO_OPLOCK;
  44         default:
  45                 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
  46                         "unknown level %u\n",
  47                         (unsigned int)in_oplock_level));
  48                 return NO_OPLOCK;
  49         }
  50 }
  51
  52 static uint8_t map_samba_oplock_levels_to_smb2(int oplock_type)
  53 {
  54         if (BATCH_OPLOCK_TYPE(oplock_type)) {
  55                 return SMB2_OPLOCK_LEVEL_BATCH;
  56         } else if (EXCLUSIVE_OPLOCK_TYPE(oplock_type)) {
  57                 return SMB2_OPLOCK_LEVEL_EXCLUSIVE;
  58         } else if (oplock_type == LEVEL_II_OPLOCK) {
  59                 /*
  60                  * Don't use LEVEL_II_OPLOCK_TYPE here as
  61                  * this also includes FAKE_LEVEL_II_OPLOCKs
  62                  * which are internal only.
  63                  */
  64                 return SMB2_OPLOCK_LEVEL_II;
  65         } else {
  66                 return SMB2_OPLOCK_LEVEL_NONE;
  67         }
  68 }
  69
  70 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
  71                         struct tevent_context *ev,
  72                         struct smbd_smb2_request *smb2req,
  73                         uint8_t in_oplock_level,
  74                         uint32_t in_impersonation_level,
  75                         uint32_t in_desired_access,
  76                         uint32_t in_file_attributes,
  77                         uint32_t in_share_access,
  78                         uint32_t in_create_disposition,
  79                         uint32_t in_create_options,
  80                         const char *in_name,
  81                         struct smb2_create_blobs in_context_blobs);
  82 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
  83                         TALLOC_CTX *mem_ctx,
  84                         uint8_t *out_oplock_level,
  85                         uint32_t *out_create_action,
  86                         NTTIME *out_creation_time,
  87                         NTTIME *out_last_access_time,
  88                         NTTIME *out_last_write_time,
  89                         NTTIME *out_change_time,
  90                         uint64_t *out_allocation_size,
  91                         uint64_t *out_end_of_file,
  92                         uint32_t *out_file_attributes,
  93                         uint64_t *out_file_id_persistent,
  94                         uint64_t *out_file_id_volatile,
  95                         struct smb2_create_blobs *out_context_blobs);
  96
  97 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq);
  98 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *smb2req)
  99 {
 100         const uint8_t *inbody;
 101         int i = smb2req->current_idx;
 102         size_t expected_body_size = 0x39;
 103         size_t body_size;
 104         uint8_t in_oplock_level;
 105         uint32_t in_impersonation_level;
 106         uint32_t in_desired_access;
 107         uint32_t in_file_attributes;
 108         uint32_t in_share_access;
 109         uint32_t in_create_disposition;
 110         uint32_t in_create_options;
 111         uint16_t in_name_offset;
 112         uint16_t in_name_length;
 113         DATA_BLOB in_name_buffer;
 114         char *in_name_string;
 115         size_t in_name_string_size;
 116         uint32_t name_offset = 0;
 117         uint32_t name_available_length = 0;
 118         uint32_t in_context_offset;
 119         uint32_t in_context_length;
 120         DATA_BLOB in_context_buffer;
 121         struct smb2_create_blobs in_context_blobs;
 122         uint32_t context_offset = 0;
 123         uint32_t context_available_length = 0;
 124         uint32_t dyn_offset;
 125         NTSTATUS status;
 126         bool ok;
 127         struct tevent_req *tsubreq;
 128
 129         if (smb2req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
 130                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 131         }
 132
 133         inbody = (const uint8_t *)smb2req->in.vector[i+1].iov_base;
 134
 135         body_size = SVAL(inbody, 0x00);
 136         if (body_size != expected_body_size) {
 137                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 138         }
 139
 140         in_oplock_level         = CVAL(inbody, 0x03);
 141         in_impersonation_level  = IVAL(inbody, 0x04);
 142         in_desired_access       = IVAL(inbody, 0x18);
 143         in_file_attributes      = IVAL(inbody, 0x1C);
 144         in_share_access         = IVAL(inbody, 0x20);
 145         in_create_disposition   = IVAL(inbody, 0x24);
 146         in_create_options       = IVAL(inbody, 0x28);
 147         in_name_offset          = SVAL(inbody, 0x2C);
 148         in_name_length          = SVAL(inbody, 0x2E);
 149         in_context_offset       = IVAL(inbody, 0x30);
 150         in_context_length       = IVAL(inbody, 0x34);
 151
 152         /*
 153          * First check if the dynamic name and context buffers
 154          * are correctly specified.
 155          *
 156          * Note: That we don't check if the name and context buffers
 157          *       overlap
 158          */
 159
 160         dyn_offset = SMB2_HDR_BODY + (body_size & 0xFFFFFFFE);
 161
 162         if (in_name_offset == 0 && in_name_length == 0) {
 163                 /* This is ok */
 164                 name_offset = 0;
 165         } else if (in_name_offset < dyn_offset) {
 166                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 167         } else {
 168                 name_offset = in_name_offset - dyn_offset;
 169         }
 170
 171         if (name_offset > smb2req->in.vector[i+2].iov_len) {
 172                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 173         }
 174
 175         name_available_length = smb2req->in.vector[i+2].iov_len - name_offset;
 176
 177         if (in_name_length > name_available_length) {
 178                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 179         }
 180
 181         in_name_buffer.data = (uint8_t *)smb2req->in.vector[i+2].iov_base +
 182                               name_offset;
 183         in_name_buffer.length = in_name_length;
 184
 185         if (in_context_offset == 0 && in_context_length == 0) {
 186                 /* This is ok */
 187                 context_offset = 0;
 188         } else if (in_context_offset < dyn_offset) {
 189                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 190         } else {
 191                 context_offset = in_context_offset - dyn_offset;
 192         }
 193
 194         if (context_offset > smb2req->in.vector[i+2].iov_len) {
 195                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 196         }
 197
 198         context_available_length = smb2req->in.vector[i+2].iov_len - context_offset;
 199
 200         if (in_context_length > context_available_length) {
 201                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 202         }
 203
 204         in_context_buffer.data = (uint8_t *)smb2req->in.vector[i+2].iov_base +
 205                                   context_offset;
 206         in_context_buffer.length = in_context_length;
 207
 208         /*
 209          * Now interpret the name and context buffers
 210          */
 211
 212         ok = convert_string_talloc(smb2req, CH_UTF16, CH_UNIX,
 213                                    in_name_buffer.data,
 214                                    in_name_buffer.length,
 215                                    &in_name_string,
 216                                    &in_name_string_size);
 217         if (!ok) {
 218                 return smbd_smb2_request_error(smb2req, NT_STATUS_ILLEGAL_CHARACTER);
 219         }
 220
 221         ZERO_STRUCT(in_context_blobs);
 222         status = smb2_create_blob_parse(smb2req, in_context_buffer, &in_context_blobs);
 223         if (!NT_STATUS_IS_OK(status)) {
 224                 return smbd_smb2_request_error(smb2req, status);
 225         }
 226
 227         tsubreq = smbd_smb2_create_send(smb2req,
 228                                        smb2req->sconn->smb2.event_ctx,
 229                                        smb2req,
 230                                        in_oplock_level,
 231                                        in_impersonation_level,
 232                                        in_desired_access,
 233                                        in_file_attributes,
 234                                        in_share_access,
 235                                        in_create_disposition,
 236                                        in_create_options,
 237                                        in_name_string,
 238                                        in_context_blobs);
 239         if (tsubreq == NULL) {
 240                 smb2req->subreq = NULL;
 241                 return smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
 242         }
 243         tevent_req_set_callback(tsubreq, smbd_smb2_request_create_done, smb2req);
 244
 245         return smbd_smb2_request_pending_queue(smb2req, tsubreq);
 246 }
 247
 248 static uint64_t get_mid_from_smb2req(struct smbd_smb2_request *smb2req)
 249 {
 250         uint8_t *reqhdr = (uint8_t *)smb2req->out.vector[smb2req->current_idx].iov_base;
 251         return BVAL(reqhdr, SMB2_HDR_MESSAGE_ID);
 252 }
 253
 254 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq)
 255 {
 256         struct smbd_smb2_request *smb2req = tevent_req_callback_data(tsubreq,
 257                                         struct smbd_smb2_request);
 258         int i = smb2req->current_idx;
 259         uint8_t *outhdr;
 260         DATA_BLOB outbody;
 261         DATA_BLOB outdyn;
 262         uint8_t out_oplock_level = 0;
 263         uint32_t out_create_action = 0;
 264         NTTIME out_creation_time = 0;
 265         NTTIME out_last_access_time = 0;
 266         NTTIME out_last_write_time = 0;
 267         NTTIME out_change_time = 0;
 268         uint64_t out_allocation_size = 0;
 269         uint64_t out_end_of_file = 0;
 270         uint32_t out_file_attributes = 0;
 271         uint64_t out_file_id_persistent = 0;
 272         uint64_t out_file_id_volatile = 0;
 273         struct smb2_create_blobs out_context_blobs;
 274         DATA_BLOB out_context_buffer;
 275         uint16_t out_context_buffer_offset = 0;
 276         NTSTATUS status;
 277         NTSTATUS error; /* transport error */
 278
 279         if (smb2req->cancelled) {
 280                 uint64_t mid = get_mid_from_smb2req(smb2req);
 281                 DEBUG(10,("smbd_smb2_request_create_done: cancelled mid %llu\n",
 282                         (unsigned long long)mid ));
 283                 error = smbd_smb2_request_error(smb2req, NT_STATUS_CANCELLED);
 284                 if (!NT_STATUS_IS_OK(error)) {
 285                         smbd_server_connection_terminate(smb2req->sconn,
 286                                 nt_errstr(error));
 287                         return;
 288                 }
 289                 return;
 290         }
 291
 292         status = smbd_smb2_create_recv(tsubreq,
 293                                        smb2req,
 294                                        &out_oplock_level,
 295                                        &out_create_action,
 296                                        &out_creation_time,
 297                                        &out_last_access_time,
 298                                        &out_last_write_time,
 299                                        &out_change_time,
 300                                        &out_allocation_size,
 301                                        &out_end_of_file,
 302                                        &out_file_attributes,
 303                                        &out_file_id_persistent,
 304                                        &out_file_id_volatile,
 305                                        &out_context_blobs);
 306         if (!NT_STATUS_IS_OK(status)) {
 307                 error = smbd_smb2_request_error(smb2req, status);
 308                 if (!NT_STATUS_IS_OK(error)) {
 309                         smbd_server_connection_terminate(smb2req->sconn,
 310                                                          nt_errstr(error));
 311                         return;
 312                 }
 313                 return;
 314         }
 315
 316         status = smb2_create_blob_push(smb2req, &out_context_buffer, out_context_blobs);
 317         if (!NT_STATUS_IS_OK(status)) {
 318                 error = smbd_smb2_request_error(smb2req, status);
 319                 if (!NT_STATUS_IS_OK(error)) {
 320                         smbd_server_connection_terminate(smb2req->sconn,
 321                                                          nt_errstr(error));
 322                         return;
 323                 }
 324                 return;
 325         }
 326
 327         if (out_context_buffer.length > 0) {
 328                 out_context_buffer_offset = SMB2_HDR_BODY + 0x58;
 329         }
 330
 331         outhdr = (uint8_t *)smb2req->out.vector[i].iov_base;
 332
 333         outbody = data_blob_talloc(smb2req->out.vector, NULL, 0x58);
 334         if (outbody.data == NULL) {
 335                 error = smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
 336                 if (!NT_STATUS_IS_OK(error)) {
 337                         smbd_server_connection_terminate(smb2req->sconn,
 338                                                          nt_errstr(error));
 339                         return;
 340                 }
 341                 return;
 342         }
 343
 344         SSVAL(outbody.data, 0x00, 0x58 + 1);    /* struct size */
 345         SCVAL(outbody.data, 0x02,
 346               out_oplock_level);                /* oplock level */
 347         SCVAL(outbody.data, 0x03, 0);           /* reserved */
 348         SIVAL(outbody.data, 0x04,
 349               out_create_action);               /* create action */
 350         SBVAL(outbody.data, 0x08,
 351               out_creation_time);               /* creation time */
 352         SBVAL(outbody.data, 0x10,
 353               out_last_access_time);            /* last access time */
 354         SBVAL(outbody.data, 0x18,
 355               out_last_write_time);             /* last write time */
 356         SBVAL(outbody.data, 0x20,
 357               out_change_time);                 /* change time */
 358         SBVAL(outbody.data, 0x28,
 359               out_allocation_size);             /* allocation size */
 360         SBVAL(outbody.data, 0x30,
 361               out_end_of_file);                 /* end of file */
 362         SIVAL(outbody.data, 0x38,
 363               out_file_attributes);             /* file attributes */
 364         SIVAL(outbody.data, 0x3C, 0);           /* reserved */
 365         SBVAL(outbody.data, 0x40,
 366               out_file_id_persistent);          /* file id (persistent) */
 367         SBVAL(outbody.data, 0x48,
 368               out_file_id_volatile);            /* file id (volatile) */
 369         SIVAL(outbody.data, 0x50,
 370               out_context_buffer_offset);       /* create contexts offset */
 371         SIVAL(outbody.data, 0x54,
 372               out_context_buffer.length);       /* create contexts length */
 373
 374         outdyn = out_context_buffer;
 375
 376         error = smbd_smb2_request_done(smb2req, outbody, &outdyn);
 377         if (!NT_STATUS_IS_OK(error)) {
 378                 smbd_server_connection_terminate(smb2req->sconn,
 379                                                  nt_errstr(error));
 380                 return;
 381         }
 382 }
 383
 384 struct smbd_smb2_create_state {
 385         struct smbd_smb2_request *smb2req;
 386         struct smb_request *smb1req;
 387         struct timed_event *te;
 388         struct tevent_immediate *im;
 389         struct timeval request_time;
 390         struct file_id id;
 391         DATA_BLOB private_data;
 392         uint8_t out_oplock_level;
 393         uint32_t out_create_action;
 394         NTTIME out_creation_time;
 395         NTTIME out_last_access_time;
 396         NTTIME out_last_write_time;
 397         NTTIME out_change_time;
 398         uint64_t out_allocation_size;
 399         uint64_t out_end_of_file;
 400         uint32_t out_file_attributes;
 401         uint64_t out_file_id_persistent;
 402         uint64_t out_file_id_volatile;
 403         struct smb2_create_blobs out_context_blobs;
 404 };
 405
 406 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
 407                         struct tevent_context *ev,
 408                         struct smbd_smb2_request *smb2req,
 409                         uint8_t in_oplock_level,
 410                         uint32_t in_impersonation_level,
 411                         uint32_t in_desired_access,
 412                         uint32_t in_file_attributes,
 413                         uint32_t in_share_access,
 414                         uint32_t in_create_disposition,
 415                         uint32_t in_create_options,
 416                         const char *in_name,
 417                         struct smb2_create_blobs in_context_blobs)
 418 {
 419         struct tevent_req *req = NULL;
 420         struct smbd_smb2_create_state *state = NULL;
 421         NTSTATUS status;
 422         struct smb_request *smb1req = NULL;
 423         files_struct *result = NULL;
 424         int info;
 425         struct timespec write_time_ts;
 426         struct smb2_create_blobs out_context_blobs;
 427         int requested_oplock_level;
 428
 429         ZERO_STRUCT(out_context_blobs);
 430
 431         if(lp_fake_oplocks(SNUM(smb2req->tcon->compat_conn))) {
 432                 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
 433         } else {
 434                 requested_oplock_level = in_oplock_level;
 435         }
 436
 437
 438         if (!smb2req->async) {
 439                 /* New create call. */
 440                 req = tevent_req_create(mem_ctx, &state,
 441                                 struct smbd_smb2_create_state);
 442                 if (req == NULL) {
 443                         return NULL;
 444                 }
 445                 state->smb2req = smb2req;
 446                 smb2req->subreq = req; /* So we can find this when going async. */
 447
 448                 smb1req = smbd_smb2_fake_smb_request(smb2req);
 449                 if (tevent_req_nomem(smb1req, req)) {
 450                         return tevent_req_post(req, ev);
 451                 }
 452                 state->smb1req = smb1req;
 453                 DEBUG(10,("smbd_smb2_create: name[%s]\n",
 454                         in_name));
 455         } else {
 456                 /* Re-entrant create call. */
 457                 req = smb2req->subreq;
 458                 state = tevent_req_data(req,
 459                                 struct smbd_smb2_create_state);
 460                 smb1req = state->smb1req;
 461                 DEBUG(10,("smbd_smb2_create_send: reentrant for file %s\n",
 462                         in_name ));
 463         }
 464
 465         if (IS_IPC(smb1req->conn)) {
 466                 const char *pipe_name = in_name;
 467
 468                 if (!lp_nt_pipe_support()) {
 469                         tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
 470                         return tevent_req_post(req, ev);
 471                 }
 472
 473                 /* Strip \\ off the name. */
 474                 if (pipe_name[0] == '\\') {
 475                         pipe_name++;
 476                 }
 477
 478                 status = open_np_file(smb1req, pipe_name, &result);
 479                 if (!NT_STATUS_IS_OK(status)) {
 480                         tevent_req_nterror(req, status);
 481                         return tevent_req_post(req, ev);
 482                 }
 483                 info = FILE_WAS_OPENED;
 484         } else if (CAN_PRINT(smb1req->conn)) {
 485                 status = file_new(smb1req, smb1req->conn, &result);
 486                 if(!NT_STATUS_IS_OK(status)) {
 487                         tevent_req_nterror(req, status);
 488                         return tevent_req_post(req, ev);
 489                 }
 490
 491                 status = print_spool_open(result, in_name,
 492                                           smb1req->vuid);
 493                 if (!NT_STATUS_IS_OK(status)) {
 494                         file_free(smb1req, result);
 495                         tevent_req_nterror(req, status);
 496                         return tevent_req_post(req, ev);
 497                 }
 498                 info = FILE_WAS_CREATED;
 499         } else {
 500                 char *fname;
 501                 struct smb_filename *smb_fname = NULL;
 502                 struct smb2_create_blob *exta = NULL;
 503                 struct ea_list *ea_list = NULL;
 504                 struct smb2_create_blob *mxac = NULL;
 505                 NTTIME max_access_time = 0;
 506                 struct smb2_create_blob *secd = NULL;
 507                 struct security_descriptor *sec_desc = NULL;
 508                 struct smb2_create_blob *dhnq = NULL;
 509                 struct smb2_create_blob *dhnc = NULL;
 510                 struct smb2_create_blob *alsi = NULL;
 511                 uint64_t allocation_size = 0;
 512                 struct smb2_create_blob *twrp = NULL;
 513                 struct smb2_create_blob *qfid = NULL;
 514
 515                 exta = smb2_create_blob_find(&in_context_blobs,
 516                                              SMB2_CREATE_TAG_EXTA);
 517                 mxac = smb2_create_blob_find(&in_context_blobs,
 518                                              SMB2_CREATE_TAG_MXAC);
 519                 secd = smb2_create_blob_find(&in_context_blobs,
 520                                              SMB2_CREATE_TAG_SECD);
 521                 dhnq = smb2_create_blob_find(&in_context_blobs,
 522                                              SMB2_CREATE_TAG_DHNQ);
 523                 dhnc = smb2_create_blob_find(&in_context_blobs,
 524                                              SMB2_CREATE_TAG_DHNC);
 525                 alsi = smb2_create_blob_find(&in_context_blobs,
 526                                              SMB2_CREATE_TAG_ALSI);
 527                 twrp = smb2_create_blob_find(&in_context_blobs,
 528                                              SMB2_CREATE_TAG_TWRP);
 529                 qfid = smb2_create_blob_find(&in_context_blobs,
 530                                              SMB2_CREATE_TAG_QFID);
 531
 532                 fname = talloc_strdup(state, in_name);
 533                 if (tevent_req_nomem(fname, req)) {
 534                         return tevent_req_post(req, ev);
 535                 }
 536
 537                 if (exta) {
 538                         if (dhnc) {
 539                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 540                                 return tevent_req_post(req, ev);
 541                         }
 542
 543                         ea_list = read_nttrans_ea_list(mem_ctx,
 544                                 (const char *)exta->data.data, exta->data.length);
 545                         if (!ea_list) {
 546                                 DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
 547                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 548                                 return tevent_req_post(req, ev);
 549                         }
 550                 }
 551
 552                 if (mxac) {
 553                         if (dhnc) {
 554                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 555                                 return tevent_req_post(req, ev);
 556                         }
 557
 558                         if (mxac->data.length == 0) {
 559                                 max_access_time = 0;
 560                         } else if (mxac->data.length == 8) {
 561                                 max_access_time = BVAL(mxac->data.data, 0);
 562                         } else {
 563                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 564                                 return tevent_req_post(req, ev);
 565                         }
 566                 }
 567
 568                 if (secd) {
 569                         enum ndr_err_code ndr_err;
 570
 571                         if (dhnc) {
 572                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 573                                 return tevent_req_post(req, ev);
 574                         }
 575
 576                         sec_desc = talloc_zero(state, struct security_descriptor);
 577                         if (tevent_req_nomem(sec_desc, req)) {
 578                                 return tevent_req_post(req, ev);
 579                         }
 580
 581                         ndr_err = ndr_pull_struct_blob(&secd->data,
 582                                 sec_desc, sec_desc,
 583                                 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 584                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 585                                 DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
 586                                          ndr_errstr(ndr_err)));
 587                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 588                                 return tevent_req_post(req, ev);
 589                         }
 590                 }
 591
 592                 if (dhnq) {
 593                         if (dhnc) {
 594                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 595                                 return tevent_req_post(req, ev);
 596                         }
 597
 598                         if (dhnq->data.length != 16) {
 599                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 600                                 return tevent_req_post(req, ev);
 601                         }
 602                         /*
 603                          * we don't support durable handles yet
 604                          * and have to ignore this
 605                          */
 606                 }
 607
 608                 if (dhnc) {
 609                         if (dhnc->data.length != 16) {
 610                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 611                                 return tevent_req_post(req, ev);
 612                         }
 613                         /* we don't support durable handles yet */
 614                         tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 615                         return tevent_req_post(req, ev);
 616                 }
 617
 618                 if (alsi) {
 619                         if (dhnc) {
 620                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 621                                 return tevent_req_post(req, ev);
 622                         }
 623
 624                         if (alsi->data.length != 8) {
 625                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 626                                 return tevent_req_post(req, ev);
 627                         }
 628                         allocation_size = BVAL(alsi->data.data, 0);
 629                 }
 630
 631                 if (twrp) {
 632                         NTTIME nttime;
 633                         time_t t;
 634                         struct tm *tm;
 635
 636                         if (dhnc) {
 637                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 638                                 return tevent_req_post(req, ev);
 639                         }
 640
 641                         if (twrp->data.length != 8) {
 642                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 643                                 return tevent_req_post(req, ev);
 644                         }
 645
 646                         nttime = BVAL(twrp->data.data, 0);
 647                         t = nt_time_to_unix(nttime);
 648                         tm = gmtime(&t);
 649
 650                         TALLOC_FREE(fname);
 651                         fname = talloc_asprintf(state,
 652                                         "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s",
 653                                         tm->tm_year + 1900,
 654                                         tm->tm_mon + 1,
 655                                         tm->tm_mday,
 656                                         tm->tm_hour,
 657                                         tm->tm_min,
 658                                         tm->tm_sec,
 659                                         in_name);
 660                         if (tevent_req_nomem(fname, req)) {
 661                                 return tevent_req_post(req, ev);
 662                         }
 663                 }
 664
 665                 if (qfid) {
 666                         if (qfid->data.length != 0) {
 667                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 668                                 return tevent_req_post(req, ev);
 669                         }
 670                 }
 671
 672                 /* these are ignored for SMB2 */
 673                 in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */
 674                 in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */
 675
 676                 /*
 677                  * For a DFS path the function parse_dfs_path()
 678                  * will do the path processing.
 679                  */
 680
 681                 if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
 682                         /* convert '\\' into '/' */
 683                         status = check_path_syntax(fname);
 684                         if (!NT_STATUS_IS_OK(status)) {
 685                                 tevent_req_nterror(req, status);
 686                                 return tevent_req_post(req, ev);
 687                         }
 688                 }
 689
 690                 status = filename_convert(req,
 691                                           smb1req->conn,
 692                                           smb1req->flags2 & FLAGS2_DFS_PATHNAMES,
 693                                           fname,
 694                                           0,
 695                                           NULL,
 696                                           &smb_fname);
 697                 if (!NT_STATUS_IS_OK(status)) {
 698                         tevent_req_nterror(req, status);
 699                         return tevent_req_post(req, ev);
 700                 }
 701
 702                 in_file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 703
 704                 status = SMB_VFS_CREATE_FILE(smb1req->conn,
 705                                              smb1req,
 706                                              0, /* root_dir_fid */
 707                                              smb_fname,
 708                                              in_desired_access,
 709                                              in_share_access,
 710                                              in_create_disposition,
 711                                              in_create_options,
 712                                              in_file_attributes,
 713                                              map_smb2_oplock_levels_to_samba(requested_oplock_level),
 714                                              allocation_size,
 715                                              0, /* private_flags */
 716                                              sec_desc,
 717                                              ea_list,
 718                                              &result,
 719                                              &info);
 720                 if (!NT_STATUS_IS_OK(status)) {
 721                         if (open_was_deferred(smb1req->mid)) {
 722                                 return req;
 723                         }
 724                         tevent_req_nterror(req, status);
 725                         return tevent_req_post(req, ev);
 726                 }
 727
 728                 if (mxac) {
 729                         NTTIME last_write_time;
 730
 731                         unix_timespec_to_nt_time(&last_write_time,
 732                                                  result->fsp_name->st.st_ex_mtime);
 733                         if (last_write_time != max_access_time) {
 734                                 uint8_t p[8];
 735                                 uint32_t max_access_granted;
 736                                 DATA_BLOB blob = data_blob_const(p, sizeof(p));
 737
 738                                 status = smbd_check_open_rights(smb1req->conn,
 739                                                         result->fsp_name,
 740                                                         SEC_FLAG_MAXIMUM_ALLOWED,
 741                                                         &max_access_granted);
 742
 743                                 SIVAL(p, 0, NT_STATUS_V(status));
 744                                 SIVAL(p, 4, max_access_granted);
 745
 746                                 status = smb2_create_blob_add(state,
 747                                                         &out_context_blobs,
 748                                                         SMB2_CREATE_TAG_MXAC,
 749                                                         blob);
 750                                 if (!NT_STATUS_IS_OK(status)) {
 751                                         tevent_req_nterror(req, status);
 752                                         return tevent_req_post(req, ev);
 753                                 }
 754                         }
 755                 }
 756
 757                 if (qfid) {
 758                         uint8_t p[32];
 759                         uint64_t file_index = get_FileIndex(result->conn,
 760                                                         &result->fsp_name->st);
 761                         DATA_BLOB blob = data_blob_const(p, sizeof(p));
 762
 763                         ZERO_STRUCT(p);
 764
 765                         /* From conversations with Microsoft engineers at
 766                            the MS plugfest. The first 8 bytes are the "volume index"
 767                            == inode, the second 8 bytes are the "volume id",
 768                            == dev. This will be updated in the SMB2 doc. */
 769                         SBVAL(p, 0, file_index);
 770                         SIVAL(p, 8, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
 771
 772                         status = smb2_create_blob_add(state, &out_context_blobs,
 773                                                       SMB2_CREATE_TAG_QFID,
 774                                                       blob);
 775                         if (!NT_STATUS_IS_OK(status)) {
 776                                 tevent_req_nterror(req, status);
 777                                 return tevent_req_post(req, ev);
 778                         }
 779                 }
 780         }
 781
 782         smb2req->compat_chain_fsp = smb1req->chain_fsp;
 783
 784         if(lp_fake_oplocks(SNUM(smb2req->tcon->compat_conn))) {
 785                 state->out_oplock_level = in_oplock_level;
 786         } else {
 787                 state->out_oplock_level = map_samba_oplock_levels_to_smb2(result->oplock_type);
 788         }
 789
 790         if ((in_create_disposition == FILE_SUPERSEDE)
 791             && (info == FILE_WAS_OVERWRITTEN)) {
 792                 state->out_create_action = FILE_WAS_SUPERSEDED;
 793         } else {
 794                 state->out_create_action = info;
 795         }
 796         state->out_file_attributes = dos_mode(result->conn,
 797                                            result->fsp_name);
 798         /* Deal with other possible opens having a modified
 799            write time. JRA. */
 800         ZERO_STRUCT(write_time_ts);
 801         get_file_infos(result->file_id, 0, NULL, &write_time_ts);
 802         if (!null_timespec(write_time_ts)) {
 803                 update_stat_ex_mtime(&result->fsp_name->st, write_time_ts);
 804         }
 805
 806         unix_timespec_to_nt_time(&state->out_creation_time,
 807                         get_create_timespec(smb1req->conn, result,
 808                                         result->fsp_name));
 809         unix_timespec_to_nt_time(&state->out_last_access_time,
 810                         result->fsp_name->st.st_ex_atime);
 811         unix_timespec_to_nt_time(&state->out_last_write_time,
 812                         result->fsp_name->st.st_ex_mtime);
 813         unix_timespec_to_nt_time(&state->out_change_time,
 814                         get_change_timespec(smb1req->conn, result,
 815                                         result->fsp_name));
 816         state->out_allocation_size =
 817                         result->fsp_name->st.st_ex_blksize *
 818                         result->fsp_name->st.st_ex_blocks;
 819         state->out_end_of_file = result->fsp_name->st.st_ex_size;
 820         if (state->out_file_attributes == 0) {
 821                 state->out_file_attributes = FILE_ATTRIBUTE_NORMAL;
 822         }
 823         state->out_file_id_persistent = result->fnum;
 824         state->out_file_id_volatile = result->fnum;
 825         state->out_context_blobs = out_context_blobs;
 826
 827         tevent_req_done(req);
 828         return tevent_req_post(req, ev);
 829 }
 830
 831 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
 832                         TALLOC_CTX *mem_ctx,
 833                         uint8_t *out_oplock_level,
 834                         uint32_t *out_create_action,
 835                         NTTIME *out_creation_time,
 836                         NTTIME *out_last_access_time,
 837                         NTTIME *out_last_write_time,
 838                         NTTIME *out_change_time,
 839                         uint64_t *out_allocation_size,
 840                         uint64_t *out_end_of_file,
 841                         uint32_t *out_file_attributes,
 842                         uint64_t *out_file_id_persistent,
 843                         uint64_t *out_file_id_volatile,
 844                         struct smb2_create_blobs *out_context_blobs)
 845 {
 846         NTSTATUS status;
 847         struct smbd_smb2_create_state *state = tevent_req_data(req,
 848                                                struct smbd_smb2_create_state);
 849
 850         if (tevent_req_is_nterror(req, &status)) {
 851                 tevent_req_received(req);
 852                 return status;
 853         }
 854
 855         *out_oplock_level       = state->out_oplock_level;
 856         *out_create_action      = state->out_create_action;
 857         *out_creation_time      = state->out_creation_time;
 858         *out_last_access_time   = state->out_last_access_time;
 859         *out_last_write_time    = state->out_last_write_time;
 860         *out_change_time        = state->out_change_time;
 861         *out_allocation_size    = state->out_allocation_size;
 862         *out_end_of_file        = state->out_end_of_file;
 863         *out_file_attributes    = state->out_file_attributes;
 864         *out_file_id_persistent = state->out_file_id_persistent;
 865         *out_file_id_volatile   = state->out_file_id_volatile;
 866         *out_context_blobs      = state->out_context_blobs;
 867
 868         talloc_steal(mem_ctx, state->out_context_blobs.blobs);
 869
 870         tevent_req_received(req);
 871         return NT_STATUS_OK;
 872 }
 873
 874 /*********************************************************
 875  Code for dealing with deferred opens.
 876 *********************************************************/
 877
 878 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 879                         struct timeval *p_request_time,
 880                         void **pp_state)
 881 {
 882         struct smbd_smb2_create_state *state = NULL;
 883         struct tevent_req *req = NULL;
 884
 885         if (!smb2req) {
 886                 return false;
 887         }
 888         if (!smb2req->async) {
 889                 return false;
 890         }
 891         req = smb2req->subreq;
 892         if (!req) {
 893                 return false;
 894         }
 895         state = tevent_req_data(req, struct smbd_smb2_create_state);
 896         if (!state) {
 897                 return false;
 898         }
 899         if (p_request_time) {
 900                 *p_request_time = state->request_time;
 901         }
 902         if (pp_state) {
 903                 *pp_state = (void *)state->private_data.data;
 904         }
 905         return true;
 906 }
 907
 908 /*********************************************************
 909  Re-process this call early - requested by message or
 910  close.
 911 *********************************************************/
 912
 913 static struct smbd_smb2_request *find_open_smb2req(
 914         struct smbd_server_connection *sconn, uint64_t mid)
 915 {
 916         struct smbd_smb2_request *smb2req;
 917
 918         for (smb2req = sconn->smb2.requests; smb2req; smb2req = smb2req->next) {
 919                 uint64_t message_id;
 920                 if (smb2req->subreq == NULL) {
 921                         /* This message has been processed. */
 922                         continue;
 923                 }
 924                 if (!tevent_req_is_in_progress(smb2req->subreq)) {
 925                         /* This message has been processed. */
 926                         continue;
 927                 }
 928                 message_id = get_mid_from_smb2req(smb2req);
 929                 if (message_id == mid) {
 930                         return smb2req;
 931                 }
 932         }
 933         return NULL;
 934 }
 935
 936 bool open_was_deferred_smb2(struct smbd_server_connection *sconn, uint64_t mid)
 937 {
 938         struct smbd_smb2_create_state *state = NULL;
 939         struct smbd_smb2_request *smb2req;
 940
 941         smb2req = find_open_smb2req(sconn, mid);
 942
 943         if (!smb2req) {
 944                 DEBUG(10,("open_was_deferred_smb2: mid %llu smb2req == NULL\n",
 945                         (unsigned long long)mid));
 946                 return false;
 947         }
 948         if (!smb2req->subreq) {
 949                 return false;
 950         }
 951         if (!tevent_req_is_in_progress(smb2req->subreq)) {
 952                 return false;
 953         }
 954         state = tevent_req_data(smb2req->subreq,
 955                         struct smbd_smb2_create_state);
 956         if (!state) {
 957                 return false;
 958         }
 959         /* It's not in progress if there's no timeout event. */
 960         if (!state->te) {
 961                 return false;
 962         }
 963
 964         DEBUG(10,("open_was_deferred_smb2: mid = %llu\n",
 965                         (unsigned long long)mid));
 966
 967         return true;
 968 }
 969
 970 static void remove_deferred_open_message_smb2_internal(struct smbd_smb2_request *smb2req,
 971                                                         uint64_t mid)
 972 {
 973         struct smbd_smb2_create_state *state = NULL;
 974
 975         if (!smb2req->subreq) {
 976                 return;
 977         }
 978         if (!tevent_req_is_in_progress(smb2req->subreq)) {
 979                 return;
 980         }
 981         state = tevent_req_data(smb2req->subreq,
 982                         struct smbd_smb2_create_state);
 983         if (!state) {
 984                 return;
 985         }
 986
 987         DEBUG(10,("remove_deferred_open_message_smb2_internal: "
 988                 "mid %llu\n",
 989                 (unsigned long long)mid ));
 990
 991         /* Ensure we don't have any outstanding timer event. */
 992         TALLOC_FREE(state->te);
 993         /* Ensure we don't have any outstanding immediate event. */
 994         TALLOC_FREE(state->im);
 995 }
 996
 997 void remove_deferred_open_message_smb2(
 998         struct smbd_server_connection *sconn, uint64_t mid)
 999 {
1000         struct smbd_smb2_request *smb2req;
1001
1002         smb2req = find_open_smb2req(sconn, mid);
1003
1004         if (!smb2req) {
1005                 DEBUG(10,("remove_deferred_open_message_smb2: "
1006                         "can't find mid %llu\n",
1007                         (unsigned long long)mid ));
1008                 return;
1009         }
1010         remove_deferred_open_message_smb2_internal(smb2req, mid);
1011 }
1012
1013 static void smbd_smb2_create_request_dispatch_immediate(struct tevent_context *ctx,
1014                                         struct tevent_immediate *im,
1015                                         void *private_data)
1016 {
1017         struct smbd_smb2_request *smb2req = talloc_get_type_abort(private_data,
1018                                         struct smbd_smb2_request);
1019         struct smbd_server_connection *sconn = smb2req->sconn;
1020         uint64_t mid = get_mid_from_smb2req(smb2req);
1021         NTSTATUS status;
1022
1023         DEBUG(10,("smbd_smb2_create_request_dispatch_immediate: "
1024                 "re-dispatching mid %llu\n",
1025                 (unsigned long long)mid ));
1026
1027         status = smbd_smb2_request_dispatch(smb2req);
1028         if (!NT_STATUS_IS_OK(status)) {
1029                 smbd_server_connection_terminate(sconn, nt_errstr(status));
1030                 return;
1031         }
1032 }
1033
1034 void schedule_deferred_open_message_smb2(
1035         struct smbd_server_connection *sconn, uint64_t mid)
1036 {
1037         struct smbd_smb2_create_state *state = NULL;
1038         struct smbd_smb2_request *smb2req;
1039
1040         smb2req = find_open_smb2req(sconn, mid);
1041
1042         if (!smb2req) {
1043                 DEBUG(10,("schedule_deferred_open_message_smb2: "
1044                         "can't find mid %llu\n",
1045                         (unsigned long long)mid ));
1046                 return;
1047         }
1048         if (!smb2req->subreq) {
1049                 return;
1050         }
1051         if (!tevent_req_is_in_progress(smb2req->subreq)) {
1052                 return;
1053         }
1054         state = tevent_req_data(smb2req->subreq,
1055                         struct smbd_smb2_create_state);
1056         if (!state) {
1057                 return;
1058         }
1059
1060         /* Ensure we don't have any outstanding timer event. */
1061         TALLOC_FREE(state->te);
1062         /* Ensure we don't have any outstanding immediate event. */
1063         TALLOC_FREE(state->im);
1064
1065         /*
1066          * This is subtle. We must null out the callback
1067          * before resheduling, else the first call to
1068          * tevent_req_nterror() causes the _receive()
1069          * function to be called, this causing tevent_req_post()
1070          * to crash.
1071          */
1072         tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1073
1074         state->im = tevent_create_immediate(smb2req);
1075         if (!state->im) {
1076                 smbd_server_connection_terminate(smb2req->sconn,
1077                         nt_errstr(NT_STATUS_NO_MEMORY));
1078         }
1079
1080         DEBUG(10,("schedule_deferred_open_message_smb2: "
1081                 "re-processing mid %llu\n",
1082                 (unsigned long long)mid ));
1083
1084         tevent_schedule_immediate(state->im,
1085                         smb2req->sconn->smb2.event_ctx,
1086                         smbd_smb2_create_request_dispatch_immediate,
1087                         smb2req);
1088 }
1089
1090 /*********************************************************
1091  Re-process this call.
1092 *********************************************************/
1093
1094 static void smb2_deferred_open_timer(struct event_context *ev,
1095                                         struct timed_event *te,
1096                                         struct timeval _tval,
1097                                         void *private_data)
1098 {
1099         NTSTATUS status;
1100         struct smbd_smb2_create_state *state = NULL;
1101         struct smbd_smb2_request *smb2req = talloc_get_type(private_data,
1102                                                 struct smbd_smb2_request);
1103
1104         DEBUG(10,("smb2_deferred_open_timer: [idx=%d], %s\n",
1105                 smb2req->current_idx,
1106                 tevent_req_default_print(smb2req->subreq, talloc_tos()) ));
1107
1108         state = tevent_req_data(smb2req->subreq,
1109                         struct smbd_smb2_create_state);
1110         if (!state) {
1111                 return;
1112         }
1113         /*
1114          * Null this out, don't talloc_free. It will
1115          * be talloc_free'd by the tevent library when
1116          * this returns.
1117          */
1118         state->te = NULL;
1119         /* Ensure we don't have any outstanding immediate event. */
1120         TALLOC_FREE(state->im);
1121
1122         /*
1123          * This is subtle. We must null out the callback
1124          * before resheduling, else the first call to
1125          * tevent_req_nterror() causes the _receive()
1126          * function to be called, this causing tevent_req_post()
1127          * to crash.
1128          */
1129         tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1130
1131         status = smbd_smb2_request_dispatch(smb2req);
1132
1133         if (!NT_STATUS_IS_OK(status)) {
1134                 smbd_server_connection_terminate(smb2req->sconn,
1135                                 nt_errstr(status));
1136         }
1137 }
1138
1139 static bool smbd_smb2_create_cancel(struct tevent_req *req)
1140 {
1141         struct smbd_smb2_request *smb2req = NULL;
1142         struct smbd_smb2_create_state *state = tevent_req_data(req,
1143                                 struct smbd_smb2_create_state);
1144         uint64_t mid;
1145
1146         if (!state) {
1147                 return false;
1148         }
1149
1150         if (!state->smb2req) {
1151                 return false;
1152         }
1153
1154         smb2req = state->smb2req;
1155         mid = get_mid_from_smb2req(smb2req);
1156
1157         remove_deferred_open_entry(state->id, mid,
1158                                    sconn_server_id(smb2req->sconn));
1159         remove_deferred_open_message_smb2_internal(smb2req, mid);
1160         smb2req->cancelled = true;
1161
1162         tevent_req_done(req);
1163         return true;
1164 }
1165
1166 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
1167                                 struct timeval request_time,
1168                                 struct timeval timeout,
1169                                 struct file_id id,
1170                                 char *private_data,
1171                                 size_t priv_len)
1172 {
1173         struct tevent_req *req = NULL;
1174         struct smbd_smb2_create_state *state = NULL;
1175         struct timeval end_time;
1176
1177         if (!smb2req) {
1178                 return false;
1179         }
1180         req = smb2req->subreq;
1181         if (!req) {
1182                 return false;
1183         }
1184         state = tevent_req_data(req, struct smbd_smb2_create_state);
1185         if (!state) {
1186                 return false;
1187         }
1188         state->id = id;
1189         state->request_time = request_time;
1190         state->private_data = data_blob_talloc(state, private_data,
1191                                                 priv_len);
1192         if (!state->private_data.data) {
1193                 return false;
1194         }
1195
1196 #if 1
1197         /* Boo - turns out this isn't what W2K8R2
1198            does. It actually sends the STATUS_PENDING
1199            message followed by the STATUS_SHARING_VIOLATION
1200            message. Surely this means that all open
1201            calls (even on directories) will potentially
1202            fail in a chain.... ? And I've seen directory
1203            opens as the start of a chain. JRA.
1204
1205            Update: 19th May 2010. Talking with Microsoft
1206            engineers at the plugfest this is a bug in
1207            Windows. Re-enable this code.
1208         */
1209         /*
1210          * More subtlety. To match W2K8R2 don't
1211          * send a "gone async" message if it's simply
1212          * a STATUS_SHARING_VIOLATION (short) wait, not
1213          * an oplock break wait. We do this by prematurely
1214          * setting smb2req->async flag.
1215          */
1216         if (timeout.tv_sec < 2) {
1217                 DEBUG(10,("push_deferred_open_message_smb2: "
1218                         "short timer wait (usec = %u). "
1219                         "Don't send async message.\n",
1220                         (unsigned int)timeout.tv_usec ));
1221                 smb2req->async = true;
1222         }
1223 #endif
1224
1225         /* Re-schedule us to retry on timer expiry. */
1226         end_time = timeval_sum(&request_time, &timeout);
1227
1228         DEBUG(10,("push_deferred_open_message_smb2: "
1229                 "timeout at %s\n",
1230                 timeval_string(talloc_tos(),
1231                                 &end_time,
1232                                 true) ));
1233
1234         state->te = event_add_timed(smb2req->sconn->smb2.event_ctx,
1235                                 state,
1236                                 end_time,
1237                                 smb2_deferred_open_timer,
1238                                 smb2req);
1239         if (!state->te) {
1240                 return false;
1241         }
1242
1243         /* allow this request to be canceled */
1244         tevent_req_set_cancel_fn(req, smbd_smb2_create_cancel);
1245
1246         return true;
1247 }