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