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 #include "../lib/util/tevent_ntstatus.h"
  29 #include "messages.h"
  30
  31 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level)
  32 {
  33         switch(in_oplock_level) {
  34         case SMB2_OPLOCK_LEVEL_NONE:
  35                 return NO_OPLOCK;
  36         case SMB2_OPLOCK_LEVEL_II:
  37                 return LEVEL_II_OPLOCK;
  38         case SMB2_OPLOCK_LEVEL_EXCLUSIVE:
  39                 return EXCLUSIVE_OPLOCK;
  40         case SMB2_OPLOCK_LEVEL_BATCH:
  41                 return BATCH_OPLOCK;
  42         case SMB2_OPLOCK_LEVEL_LEASE:
  43                 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
  44                         "LEASE_OPLOCK_REQUESTED\n"));
  45                 return NO_OPLOCK;
  46         default:
  47                 DEBUG(2,("map_smb2_oplock_levels_to_samba: "
  48                         "unknown level %u\n",
  49                         (unsigned int)in_oplock_level));
  50                 return NO_OPLOCK;
  51         }
  52 }
  53
  54 static uint8_t map_samba_oplock_levels_to_smb2(int oplock_type)
  55 {
  56         if (BATCH_OPLOCK_TYPE(oplock_type)) {
  57                 return SMB2_OPLOCK_LEVEL_BATCH;
  58         } else if (EXCLUSIVE_OPLOCK_TYPE(oplock_type)) {
  59                 return SMB2_OPLOCK_LEVEL_EXCLUSIVE;
  60         } else if (oplock_type == LEVEL_II_OPLOCK) {
  61                 /*
  62                  * Don't use LEVEL_II_OPLOCK_TYPE here as
  63                  * this also includes FAKE_LEVEL_II_OPLOCKs
  64                  * which are internal only.
  65                  */
  66                 return SMB2_OPLOCK_LEVEL_II;
  67         } else {
  68                 return SMB2_OPLOCK_LEVEL_NONE;
  69         }
  70 }
  71
  72 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
  73                         struct tevent_context *ev,
  74                         struct smbd_smb2_request *smb2req,
  75                         uint8_t in_oplock_level,
  76                         uint32_t in_impersonation_level,
  77                         uint32_t in_desired_access,
  78                         uint32_t in_file_attributes,
  79                         uint32_t in_share_access,
  80                         uint32_t in_create_disposition,
  81                         uint32_t in_create_options,
  82                         const char *in_name,
  83                         struct smb2_create_blobs in_context_blobs);
  84 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
  85                         TALLOC_CTX *mem_ctx,
  86                         uint8_t *out_oplock_level,
  87                         uint32_t *out_create_action,
  88                         NTTIME *out_creation_time,
  89                         NTTIME *out_last_access_time,
  90                         NTTIME *out_last_write_time,
  91                         NTTIME *out_change_time,
  92                         uint64_t *out_allocation_size,
  93                         uint64_t *out_end_of_file,
  94                         uint32_t *out_file_attributes,
  95                         uint64_t *out_file_id_persistent,
  96                         uint64_t *out_file_id_volatile,
  97                         struct smb2_create_blobs *out_context_blobs);
  98
  99 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq);
 100 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *smb2req)
 101 {
 102         const uint8_t *inbody;
 103         const struct iovec *indyniov;
 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         status = smbd_smb2_request_verify_sizes(smb2req, 0x39);
 130         if (!NT_STATUS_IS_OK(status)) {
 131                 return smbd_smb2_request_error(smb2req, status);
 132         }
 133         inbody = SMBD_SMB2_IN_BODY_PTR(smb2req);
 134
 135         in_oplock_level         = CVAL(inbody, 0x03);
 136         in_impersonation_level  = IVAL(inbody, 0x04);
 137         in_desired_access       = IVAL(inbody, 0x18);
 138         in_file_attributes      = IVAL(inbody, 0x1C);
 139         in_share_access         = IVAL(inbody, 0x20);
 140         in_create_disposition   = IVAL(inbody, 0x24);
 141         in_create_options       = IVAL(inbody, 0x28);
 142         in_name_offset          = SVAL(inbody, 0x2C);
 143         in_name_length          = SVAL(inbody, 0x2E);
 144         in_context_offset       = IVAL(inbody, 0x30);
 145         in_context_length       = IVAL(inbody, 0x34);
 146
 147         /*
 148          * First check if the dynamic name and context buffers
 149          * are correctly specified.
 150          *
 151          * Note: That we don't check if the name and context buffers
 152          *       overlap
 153          */
 154
 155         dyn_offset = SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(smb2req);
 156
 157         if (in_name_offset == 0 && in_name_length == 0) {
 158                 /* This is ok */
 159                 name_offset = 0;
 160         } else if (in_name_offset < dyn_offset) {
 161                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 162         } else {
 163                 name_offset = in_name_offset - dyn_offset;
 164         }
 165
 166         indyniov = SMBD_SMB2_IN_DYN_IOV(smb2req);
 167
 168         if (name_offset > indyniov->iov_len) {
 169                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 170         }
 171
 172         name_available_length = indyniov->iov_len - name_offset;
 173
 174         if (in_name_length > name_available_length) {
 175                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 176         }
 177
 178         in_name_buffer.data = (uint8_t *)indyniov->iov_base + name_offset;
 179         in_name_buffer.length = in_name_length;
 180
 181         if (in_context_offset == 0 && in_context_length == 0) {
 182                 /* This is ok */
 183                 context_offset = 0;
 184         } else if (in_context_offset < dyn_offset) {
 185                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 186         } else {
 187                 context_offset = in_context_offset - dyn_offset;
 188         }
 189
 190         if (context_offset > indyniov->iov_len) {
 191                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 192         }
 193
 194         context_available_length = indyniov->iov_len - context_offset;
 195
 196         if (in_context_length > context_available_length) {
 197                 return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
 198         }
 199
 200         in_context_buffer.data = (uint8_t *)indyniov->iov_base +
 201                 context_offset;
 202         in_context_buffer.length = in_context_length;
 203
 204         /*
 205          * Now interpret the name and context buffers
 206          */
 207
 208         ok = convert_string_talloc(smb2req, CH_UTF16, CH_UNIX,
 209                                    in_name_buffer.data,
 210                                    in_name_buffer.length,
 211                                    &in_name_string,
 212                                    &in_name_string_size);
 213         if (!ok) {
 214                 return smbd_smb2_request_error(smb2req, NT_STATUS_ILLEGAL_CHARACTER);
 215         }
 216
 217         if (in_name_buffer.length == 0) {
 218                 in_name_string_size = 0;
 219         }
 220
 221         if (strlen(in_name_string) != in_name_string_size) {
 222                 return smbd_smb2_request_error(smb2req, NT_STATUS_OBJECT_NAME_INVALID);
 223         }
 224
 225         ZERO_STRUCT(in_context_blobs);
 226         status = smb2_create_blob_parse(smb2req, in_context_buffer, &in_context_blobs);
 227         if (!NT_STATUS_IS_OK(status)) {
 228                 return smbd_smb2_request_error(smb2req, status);
 229         }
 230
 231         tsubreq = smbd_smb2_create_send(smb2req,
 232                                        smb2req->sconn->ev_ctx,
 233                                        smb2req,
 234                                        in_oplock_level,
 235                                        in_impersonation_level,
 236                                        in_desired_access,
 237                                        in_file_attributes,
 238                                        in_share_access,
 239                                        in_create_disposition,
 240                                        in_create_options,
 241                                        in_name_string,
 242                                        in_context_blobs);
 243         if (tsubreq == NULL) {
 244                 smb2req->subreq = NULL;
 245                 return smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
 246         }
 247         tevent_req_set_callback(tsubreq, smbd_smb2_request_create_done, smb2req);
 248
 249         /*
 250          * For now we keep the logic that we do not send STATUS_PENDING
 251          * for sharing violations, so we just wait 2 seconds.
 252          *
 253          * TODO: we need more tests for this.
 254          */
 255         return smbd_smb2_request_pending_queue(smb2req, tsubreq, 2000000);
 256 }
 257
 258 static uint64_t get_mid_from_smb2req(struct smbd_smb2_request *smb2req)
 259 {
 260         uint8_t *reqhdr = SMBD_SMB2_OUT_HDR_PTR(smb2req);
 261         return BVAL(reqhdr, SMB2_HDR_MESSAGE_ID);
 262 }
 263
 264 static void smbd_smb2_request_create_done(struct tevent_req *tsubreq)
 265 {
 266         struct smbd_smb2_request *smb2req = tevent_req_callback_data(tsubreq,
 267                                         struct smbd_smb2_request);
 268         DATA_BLOB outbody;
 269         DATA_BLOB outdyn;
 270         uint8_t out_oplock_level = 0;
 271         uint32_t out_create_action = 0;
 272         NTTIME out_creation_time = 0;
 273         NTTIME out_last_access_time = 0;
 274         NTTIME out_last_write_time = 0;
 275         NTTIME out_change_time = 0;
 276         uint64_t out_allocation_size = 0;
 277         uint64_t out_end_of_file = 0;
 278         uint32_t out_file_attributes = 0;
 279         uint64_t out_file_id_persistent = 0;
 280         uint64_t out_file_id_volatile = 0;
 281         struct smb2_create_blobs out_context_blobs;
 282         DATA_BLOB out_context_buffer;
 283         uint16_t out_context_buffer_offset = 0;
 284         NTSTATUS status;
 285         NTSTATUS error; /* transport error */
 286
 287         if (smb2req->cancelled) {
 288                 uint64_t mid = get_mid_from_smb2req(smb2req);
 289                 DEBUG(10,("smbd_smb2_request_create_done: cancelled mid %llu\n",
 290                         (unsigned long long)mid ));
 291                 error = smbd_smb2_request_error(smb2req, NT_STATUS_CANCELLED);
 292                 if (!NT_STATUS_IS_OK(error)) {
 293                         smbd_server_connection_terminate(smb2req->sconn,
 294                                 nt_errstr(error));
 295                         return;
 296                 }
 297                 return;
 298         }
 299
 300         status = smbd_smb2_create_recv(tsubreq,
 301                                        smb2req,
 302                                        &out_oplock_level,
 303                                        &out_create_action,
 304                                        &out_creation_time,
 305                                        &out_last_access_time,
 306                                        &out_last_write_time,
 307                                        &out_change_time,
 308                                        &out_allocation_size,
 309                                        &out_end_of_file,
 310                                        &out_file_attributes,
 311                                        &out_file_id_persistent,
 312                                        &out_file_id_volatile,
 313                                        &out_context_blobs);
 314         if (!NT_STATUS_IS_OK(status)) {
 315                 error = smbd_smb2_request_error(smb2req, status);
 316                 if (!NT_STATUS_IS_OK(error)) {
 317                         smbd_server_connection_terminate(smb2req->sconn,
 318                                                          nt_errstr(error));
 319                         return;
 320                 }
 321                 return;
 322         }
 323
 324         status = smb2_create_blob_push(smb2req, &out_context_buffer, out_context_blobs);
 325         if (!NT_STATUS_IS_OK(status)) {
 326                 error = smbd_smb2_request_error(smb2req, status);
 327                 if (!NT_STATUS_IS_OK(error)) {
 328                         smbd_server_connection_terminate(smb2req->sconn,
 329                                                          nt_errstr(error));
 330                         return;
 331                 }
 332                 return;
 333         }
 334
 335         if (out_context_buffer.length > 0) {
 336                 out_context_buffer_offset = SMB2_HDR_BODY + 0x58;
 337         }
 338
 339         outbody = data_blob_talloc(smb2req->out.vector, NULL, 0x58);
 340         if (outbody.data == NULL) {
 341                 error = smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
 342                 if (!NT_STATUS_IS_OK(error)) {
 343                         smbd_server_connection_terminate(smb2req->sconn,
 344                                                          nt_errstr(error));
 345                         return;
 346                 }
 347                 return;
 348         }
 349
 350         SSVAL(outbody.data, 0x00, 0x58 + 1);    /* struct size */
 351         SCVAL(outbody.data, 0x02,
 352               out_oplock_level);                /* oplock level */
 353         SCVAL(outbody.data, 0x03, 0);           /* reserved */
 354         SIVAL(outbody.data, 0x04,
 355               out_create_action);               /* create action */
 356         SBVAL(outbody.data, 0x08,
 357               out_creation_time);               /* creation time */
 358         SBVAL(outbody.data, 0x10,
 359               out_last_access_time);            /* last access time */
 360         SBVAL(outbody.data, 0x18,
 361               out_last_write_time);             /* last write time */
 362         SBVAL(outbody.data, 0x20,
 363               out_change_time);                 /* change time */
 364         SBVAL(outbody.data, 0x28,
 365               out_allocation_size);             /* allocation size */
 366         SBVAL(outbody.data, 0x30,
 367               out_end_of_file);                 /* end of file */
 368         SIVAL(outbody.data, 0x38,
 369               out_file_attributes);             /* file attributes */
 370         SIVAL(outbody.data, 0x3C, 0);           /* reserved */
 371         SBVAL(outbody.data, 0x40,
 372               out_file_id_persistent);          /* file id (persistent) */
 373         SBVAL(outbody.data, 0x48,
 374               out_file_id_volatile);            /* file id (volatile) */
 375         SIVAL(outbody.data, 0x50,
 376               out_context_buffer_offset);       /* create contexts offset */
 377         SIVAL(outbody.data, 0x54,
 378               out_context_buffer.length);       /* create contexts length */
 379
 380         outdyn = out_context_buffer;
 381
 382         error = smbd_smb2_request_done(smb2req, outbody, &outdyn);
 383         if (!NT_STATUS_IS_OK(error)) {
 384                 smbd_server_connection_terminate(smb2req->sconn,
 385                                                  nt_errstr(error));
 386                 return;
 387         }
 388 }
 389
 390 struct smbd_smb2_create_state {
 391         struct smbd_smb2_request *smb2req;
 392         struct smb_request *smb1req;
 393         struct timed_event *te;
 394         struct tevent_immediate *im;
 395         struct timeval request_time;
 396         struct file_id id;
 397         DATA_BLOB private_data;
 398         uint8_t out_oplock_level;
 399         uint32_t out_create_action;
 400         NTTIME out_creation_time;
 401         NTTIME out_last_access_time;
 402         NTTIME out_last_write_time;
 403         NTTIME out_change_time;
 404         uint64_t out_allocation_size;
 405         uint64_t out_end_of_file;
 406         uint32_t out_file_attributes;
 407         uint64_t out_file_id_persistent;
 408         uint64_t out_file_id_volatile;
 409         struct smb2_create_blobs out_context_blobs;
 410 };
 411
 412 static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
 413                         struct tevent_context *ev,
 414                         struct smbd_smb2_request *smb2req,
 415                         uint8_t in_oplock_level,
 416                         uint32_t in_impersonation_level,
 417                         uint32_t in_desired_access,
 418                         uint32_t in_file_attributes,
 419                         uint32_t in_share_access,
 420                         uint32_t in_create_disposition,
 421                         uint32_t in_create_options,
 422                         const char *in_name,
 423                         struct smb2_create_blobs in_context_blobs)
 424 {
 425         struct tevent_req *req = NULL;
 426         struct smbd_smb2_create_state *state = NULL;
 427         NTSTATUS status;
 428         struct smb_request *smb1req = NULL;
 429         files_struct *result = NULL;
 430         int info;
 431         struct timespec write_time_ts;
 432         struct smb2_create_blobs out_context_blobs;
 433         int requested_oplock_level;
 434
 435         ZERO_STRUCT(out_context_blobs);
 436
 437         if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
 438                 requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
 439         } else {
 440                 requested_oplock_level = in_oplock_level;
 441         }
 442
 443
 444         if (smb2req->subreq == NULL) {
 445                 /* New create call. */
 446                 req = tevent_req_create(mem_ctx, &state,
 447                                 struct smbd_smb2_create_state);
 448                 if (req == NULL) {
 449                         return NULL;
 450                 }
 451                 state->smb2req = smb2req;
 452
 453                 smb1req = smbd_smb2_fake_smb_request(smb2req);
 454                 if (tevent_req_nomem(smb1req, req)) {
 455                         return tevent_req_post(req, ev);
 456                 }
 457                 state->smb1req = smb1req;
 458                 smb2req->subreq = req;
 459                 DEBUG(10,("smbd_smb2_create: name[%s]\n",
 460                         in_name));
 461         } else {
 462                 /* Re-entrant create call. */
 463                 req = smb2req->subreq;
 464                 state = tevent_req_data(req,
 465                                 struct smbd_smb2_create_state);
 466                 smb1req = state->smb1req;
 467                 DEBUG(10,("smbd_smb2_create_send: reentrant for file %s\n",
 468                         in_name ));
 469         }
 470
 471         if (IS_IPC(smb1req->conn)) {
 472                 const char *pipe_name = in_name;
 473
 474                 if (!lp_nt_pipe_support()) {
 475                         tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
 476                         return tevent_req_post(req, ev);
 477                 }
 478
 479                 status = open_np_file(smb1req, pipe_name, &result);
 480                 if (!NT_STATUS_IS_OK(status)) {
 481                         tevent_req_nterror(req, status);
 482                         return tevent_req_post(req, ev);
 483                 }
 484                 info = FILE_WAS_OPENED;
 485         } else if (CAN_PRINT(smb1req->conn)) {
 486                 status = file_new(smb1req, smb1req->conn, &result);
 487                 if(!NT_STATUS_IS_OK(status)) {
 488                         tevent_req_nterror(req, status);
 489                         return tevent_req_post(req, ev);
 490                 }
 491
 492                 status = print_spool_open(result, in_name,
 493                                           smb1req->vuid);
 494                 if (!NT_STATUS_IS_OK(status)) {
 495                         file_free(smb1req, result);
 496                         tevent_req_nterror(req, status);
 497                         return tevent_req_post(req, ev);
 498                 }
 499                 info = FILE_WAS_CREATED;
 500         } else {
 501                 char *fname;
 502                 struct smb_filename *smb_fname = NULL;
 503                 struct smb2_create_blob *exta = NULL;
 504                 struct ea_list *ea_list = NULL;
 505                 struct smb2_create_blob *mxac = NULL;
 506                 NTTIME max_access_time = 0;
 507                 struct smb2_create_blob *secd = NULL;
 508                 struct security_descriptor *sec_desc = NULL;
 509                 struct smb2_create_blob *dhnq = NULL;
 510                 struct smb2_create_blob *dhnc = NULL;
 511                 struct smb2_create_blob *alsi = NULL;
 512                 uint64_t allocation_size = 0;
 513                 struct smb2_create_blob *twrp = NULL;
 514                 struct smb2_create_blob *qfid = NULL;
 515
 516                 exta = smb2_create_blob_find(&in_context_blobs,
 517                                              SMB2_CREATE_TAG_EXTA);
 518                 mxac = smb2_create_blob_find(&in_context_blobs,
 519                                              SMB2_CREATE_TAG_MXAC);
 520                 secd = smb2_create_blob_find(&in_context_blobs,
 521                                              SMB2_CREATE_TAG_SECD);
 522                 dhnq = smb2_create_blob_find(&in_context_blobs,
 523                                              SMB2_CREATE_TAG_DHNQ);
 524                 dhnc = smb2_create_blob_find(&in_context_blobs,
 525                                              SMB2_CREATE_TAG_DHNC);
 526                 alsi = smb2_create_blob_find(&in_context_blobs,
 527                                              SMB2_CREATE_TAG_ALSI);
 528                 twrp = smb2_create_blob_find(&in_context_blobs,
 529                                              SMB2_CREATE_TAG_TWRP);
 530                 qfid = smb2_create_blob_find(&in_context_blobs,
 531                                              SMB2_CREATE_TAG_QFID);
 532
 533                 fname = talloc_strdup(state, in_name);
 534                 if (tevent_req_nomem(fname, req)) {
 535                         return tevent_req_post(req, ev);
 536                 }
 537
 538                 if (exta) {
 539                         if (dhnc) {
 540                                 tevent_req_nterror(req,NT_STATUS_OBJECT_NAME_NOT_FOUND);
 541                                 return tevent_req_post(req, ev);
 542                         }
 543
 544                         ea_list = read_nttrans_ea_list(mem_ctx,
 545                                 (const char *)exta->data.data, exta->data.length);
 546                         if (!ea_list) {
 547                                 DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
 548                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 549                                 return tevent_req_post(req, ev);
 550                         }
 551                 }
 552
 553                 if (mxac) {
 554                         if (dhnc) {
 555                                 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 556                                 return tevent_req_post(req, ev);
 557                         }
 558
 559                         if (mxac->data.length == 0) {
 560                                 max_access_time = 0;
 561                         } else if (mxac->data.length == 8) {
 562                                 max_access_time = BVAL(mxac->data.data, 0);
 563                         } else {
 564                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 565                                 return tevent_req_post(req, ev);
 566                         }
 567                 }
 568
 569                 if (secd) {
 570                         enum ndr_err_code ndr_err;
 571
 572                         if (dhnc) {
 573                                 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 574                                 return tevent_req_post(req, ev);
 575                         }
 576
 577                         sec_desc = talloc_zero(state, struct security_descriptor);
 578                         if (tevent_req_nomem(sec_desc, req)) {
 579                                 return tevent_req_post(req, ev);
 580                         }
 581
 582                         ndr_err = ndr_pull_struct_blob(&secd->data,
 583                                 sec_desc, sec_desc,
 584                                 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 585                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 586                                 DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
 587                                          ndr_errstr(ndr_err)));
 588                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 589                                 return tevent_req_post(req, ev);
 590                         }
 591                 }
 592
 593                 if (dhnq) {
 594                         if (dhnc) {
 595                                 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 596                                 return tevent_req_post(req, ev);
 597                         }
 598
 599                         if (dhnq->data.length != 16) {
 600                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 601                                 return tevent_req_post(req, ev);
 602                         }
 603                         /*
 604                          * we don't support durable handles yet
 605                          * and have to ignore this
 606                          */
 607                 }
 608
 609                 if (dhnc) {
 610                         if (dhnc->data.length != 16) {
 611                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 612                                 return tevent_req_post(req, ev);
 613                         }
 614                         /* we don't support durable handles yet */
 615                         tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 616                         return tevent_req_post(req, ev);
 617                 }
 618
 619                 if (alsi) {
 620                         if (dhnc) {
 621                                 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 622                                 return tevent_req_post(req, ev);
 623                         }
 624
 625                         if (alsi->data.length != 8) {
 626                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 627                                 return tevent_req_post(req, ev);
 628                         }
 629                         allocation_size = BVAL(alsi->data.data, 0);
 630                 }
 631
 632                 if (twrp) {
 633                         NTTIME nttime;
 634                         time_t t;
 635                         struct tm *tm;
 636
 637                         if (dhnc) {
 638                                 tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
 639                                 return tevent_req_post(req, ev);
 640                         }
 641
 642                         if (twrp->data.length != 8) {
 643                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 644                                 return tevent_req_post(req, ev);
 645                         }
 646
 647                         nttime = BVAL(twrp->data.data, 0);
 648                         t = nt_time_to_unix(nttime);
 649                         tm = gmtime(&t);
 650
 651                         TALLOC_FREE(fname);
 652                         fname = talloc_asprintf(state,
 653                                         "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s",
 654                                         tm->tm_year + 1900,
 655                                         tm->tm_mon + 1,
 656                                         tm->tm_mday,
 657                                         tm->tm_hour,
 658                                         tm->tm_min,
 659                                         tm->tm_sec,
 660                                         in_name);
 661                         if (tevent_req_nomem(fname, req)) {
 662                                 return tevent_req_post(req, ev);
 663                         }
 664                 }
 665
 666                 if (qfid) {
 667                         if (qfid->data.length != 0) {
 668                                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
 669                                 return tevent_req_post(req, ev);
 670                         }
 671                 }
 672
 673                 /* these are ignored for SMB2 */
 674                 in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */
 675                 in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */
 676
 677                 /*
 678                  * For a DFS path the function parse_dfs_path()
 679                  * will do the path processing.
 680                  */
 681
 682                 if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
 683                         /* convert '\\' into '/' */
 684                         status = check_path_syntax(fname);
 685                         if (!NT_STATUS_IS_OK(status)) {
 686                                 tevent_req_nterror(req, status);
 687                                 return tevent_req_post(req, ev);
 688                         }
 689                 }
 690
 691                 status = filename_convert(req,
 692                                           smb1req->conn,
 693                                           smb1req->flags2 & FLAGS2_DFS_PATHNAMES,
 694                                           fname,
 695                                           0,    /* unix_convert flags */
 696                                           NULL, /* ppath_contains_wcards */
 697                                           &smb_fname);
 698                 if (!NT_STATUS_IS_OK(status)) {
 699                         tevent_req_nterror(req, status);
 700                         return tevent_req_post(req, ev);
 701                 }
 702
 703                 in_file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
 704
 705                 status = SMB_VFS_CREATE_FILE(smb1req->conn,
 706                                              smb1req,
 707                                              0, /* root_dir_fid */
 708                                              smb_fname,
 709                                              in_desired_access,
 710                                              in_share_access,
 711                                              in_create_disposition,
 712                                              in_create_options,
 713                                              in_file_attributes,
 714                                              map_smb2_oplock_levels_to_samba(requested_oplock_level),
 715                                              allocation_size,
 716                                              0, /* private_flags */
 717                                              sec_desc,
 718                                              ea_list,
 719                                              &result,
 720                                              &info);
 721                 if (!NT_STATUS_IS_OK(status)) {
 722                         if (open_was_deferred(smb1req->sconn, smb1req->mid)) {
 723                                 return req;
 724                         }
 725                         tevent_req_nterror(req, status);
 726                         return tevent_req_post(req, ev);
 727                 }
 728
 729                 if (mxac) {
 730                         NTTIME last_write_time;
 731
 732                         unix_timespec_to_nt_time(&last_write_time,
 733                                                  result->fsp_name->st.st_ex_mtime);
 734                         if (last_write_time != max_access_time) {
 735                                 uint8_t p[8];
 736                                 uint32_t max_access_granted;
 737                                 DATA_BLOB blob = data_blob_const(p, sizeof(p));
 738
 739                                 status = smbd_calculate_access_mask(smb1req->conn,
 740                                                         result->fsp_name,
 741                                                         SEC_FLAG_MAXIMUM_ALLOWED,
 742                                                         &max_access_granted);
 743
 744                                 SIVAL(p, 0, NT_STATUS_V(status));
 745                                 SIVAL(p, 4, max_access_granted);
 746
 747                                 status = smb2_create_blob_add(state,
 748                                                         &out_context_blobs,
 749                                                         SMB2_CREATE_TAG_MXAC,
 750                                                         blob);
 751                                 if (!NT_STATUS_IS_OK(status)) {
 752                                         tevent_req_nterror(req, status);
 753                                         return tevent_req_post(req, ev);
 754                                 }
 755                         }
 756                 }
 757
 758                 if (qfid) {
 759                         uint8_t p[32];
 760                         uint64_t file_index = get_FileIndex(result->conn,
 761                                                         &result->fsp_name->st);
 762                         DATA_BLOB blob = data_blob_const(p, sizeof(p));
 763
 764                         ZERO_STRUCT(p);
 765
 766                         /* From conversations with Microsoft engineers at
 767                            the MS plugfest. The first 8 bytes are the "volume index"
 768                            == inode, the second 8 bytes are the "volume id",
 769                            == dev. This will be updated in the SMB2 doc. */
 770                         SBVAL(p, 0, file_index);
 771                         SIVAL(p, 8, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
 772
 773                         status = smb2_create_blob_add(state, &out_context_blobs,
 774                                                       SMB2_CREATE_TAG_QFID,
 775                                                       blob);
 776                         if (!NT_STATUS_IS_OK(status)) {
 777                                 tevent_req_nterror(req, status);
 778                                 return tevent_req_post(req, ev);
 779                         }
 780                 }
 781         }
 782
 783         smb2req->compat_chain_fsp = smb1req->chain_fsp;
 784
 785         if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
 786                 state->out_oplock_level = in_oplock_level;
 787         } else {
 788                 state->out_oplock_level = map_samba_oplock_levels_to_smb2(result->oplock_type);
 789         }
 790
 791         if ((in_create_disposition == FILE_SUPERSEDE)
 792             && (info == FILE_WAS_OVERWRITTEN)) {
 793                 state->out_create_action = FILE_WAS_SUPERSEDED;
 794         } else {
 795                 state->out_create_action = info;
 796         }
 797         state->out_file_attributes = dos_mode(result->conn,
 798                                            result->fsp_name);
 799         /* Deal with other possible opens having a modified
 800            write time. JRA. */
 801         ZERO_STRUCT(write_time_ts);
 802         get_file_infos(result->file_id, 0, NULL, &write_time_ts);
 803         if (!null_timespec(write_time_ts)) {
 804                 update_stat_ex_mtime(&result->fsp_name->st, write_time_ts);
 805         }
 806
 807         unix_timespec_to_nt_time(&state->out_creation_time,
 808                         get_create_timespec(smb1req->conn, result,
 809                                         result->fsp_name));
 810         unix_timespec_to_nt_time(&state->out_last_access_time,
 811                         result->fsp_name->st.st_ex_atime);
 812         unix_timespec_to_nt_time(&state->out_last_write_time,
 813                         result->fsp_name->st.st_ex_mtime);
 814         unix_timespec_to_nt_time(&state->out_change_time,
 815                         get_change_timespec(smb1req->conn, result,
 816                                         result->fsp_name));
 817         state->out_allocation_size =
 818                         SMB_VFS_GET_ALLOC_SIZE(smb1req->conn, result,
 819                                                &(result->fsp_name->st));
 820         state->out_end_of_file = result->fsp_name->st.st_ex_size;
 821         if (state->out_file_attributes == 0) {
 822                 state->out_file_attributes = FILE_ATTRIBUTE_NORMAL;
 823         }
 824         state->out_file_id_persistent = result->op->global->open_persistent_id;
 825         state->out_file_id_volatile = result->op->global->open_volatile_id;
 826         state->out_context_blobs = out_context_blobs;
 827
 828         DEBUG(10,("smbd_smb2_create_send: %s - %s\n",
 829                   fsp_str_dbg(result), fsp_fnum_dbg(result)));
 830
 831         tevent_req_done(req);
 832         return tevent_req_post(req, ev);
 833 }
 834
 835 static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
 836                         TALLOC_CTX *mem_ctx,
 837                         uint8_t *out_oplock_level,
 838                         uint32_t *out_create_action,
 839                         NTTIME *out_creation_time,
 840                         NTTIME *out_last_access_time,
 841                         NTTIME *out_last_write_time,
 842                         NTTIME *out_change_time,
 843                         uint64_t *out_allocation_size,
 844                         uint64_t *out_end_of_file,
 845                         uint32_t *out_file_attributes,
 846                         uint64_t *out_file_id_persistent,
 847                         uint64_t *out_file_id_volatile,
 848                         struct smb2_create_blobs *out_context_blobs)
 849 {
 850         NTSTATUS status;
 851         struct smbd_smb2_create_state *state = tevent_req_data(req,
 852                                                struct smbd_smb2_create_state);
 853
 854         if (tevent_req_is_nterror(req, &status)) {
 855                 tevent_req_received(req);
 856                 return status;
 857         }
 858
 859         *out_oplock_level       = state->out_oplock_level;
 860         *out_create_action      = state->out_create_action;
 861         *out_creation_time      = state->out_creation_time;
 862         *out_last_access_time   = state->out_last_access_time;
 863         *out_last_write_time    = state->out_last_write_time;
 864         *out_change_time        = state->out_change_time;
 865         *out_allocation_size    = state->out_allocation_size;
 866         *out_end_of_file        = state->out_end_of_file;
 867         *out_file_attributes    = state->out_file_attributes;
 868         *out_file_id_persistent = state->out_file_id_persistent;
 869         *out_file_id_volatile   = state->out_file_id_volatile;
 870         *out_context_blobs      = state->out_context_blobs;
 871
 872         talloc_steal(mem_ctx, state->out_context_blobs.blobs);
 873
 874         tevent_req_received(req);
 875         return NT_STATUS_OK;
 876 }
 877
 878 /*********************************************************
 879  Code for dealing with deferred opens.
 880 *********************************************************/
 881
 882 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 883                         struct timeval *p_request_time,
 884                         void **pp_state)
 885 {
 886         struct smbd_smb2_create_state *state = NULL;
 887         struct tevent_req *req = NULL;
 888
 889         if (!smb2req) {
 890                 return false;
 891         }
 892         if (smb2req->async_te == NULL) {
 893                 return false;
 894         }
 895         req = smb2req->subreq;
 896         if (!req) {
 897                 return false;
 898         }
 899         state = tevent_req_data(req, struct smbd_smb2_create_state);
 900         if (!state) {
 901                 return false;
 902         }
 903         if (p_request_time) {
 904                 *p_request_time = state->request_time;
 905         }
 906         if (pp_state) {
 907                 *pp_state = (void *)state->private_data.data;
 908         }
 909         return true;
 910 }
 911
 912 /*********************************************************
 913  Re-process this call early - requested by message or
 914  close.
 915 *********************************************************/
 916
 917 static struct smbd_smb2_request *find_open_smb2req(
 918         struct smbd_server_connection *sconn, uint64_t mid)
 919 {
 920         struct smbd_smb2_request *smb2req;
 921
 922         for (smb2req = sconn->smb2.requests; smb2req; smb2req = smb2req->next) {
 923                 uint64_t message_id;
 924                 if (smb2req->subreq == NULL) {
 925                         /* This message has been processed. */
 926                         continue;
 927                 }
 928                 if (!tevent_req_is_in_progress(smb2req->subreq)) {
 929                         /* This message has been processed. */
 930                         continue;
 931                 }
 932                 message_id = get_mid_from_smb2req(smb2req);
 933                 if (message_id == mid) {
 934                         return smb2req;
 935                 }
 936         }
 937         return NULL;
 938 }
 939
 940 bool open_was_deferred_smb2(struct smbd_server_connection *sconn, uint64_t mid)
 941 {
 942         struct smbd_smb2_create_state *state = NULL;
 943         struct smbd_smb2_request *smb2req;
 944
 945         smb2req = find_open_smb2req(sconn, mid);
 946
 947         if (!smb2req) {
 948                 DEBUG(10,("open_was_deferred_smb2: mid %llu smb2req == NULL\n",
 949                         (unsigned long long)mid));
 950                 return false;
 951         }
 952         if (!smb2req->subreq) {
 953                 return false;
 954         }
 955         if (!tevent_req_is_in_progress(smb2req->subreq)) {
 956                 return false;
 957         }
 958         state = tevent_req_data(smb2req->subreq,
 959                         struct smbd_smb2_create_state);
 960         if (!state) {
 961                 return false;
 962         }
 963         /* It's not in progress if there's no timeout event. */
 964         if (!state->te) {
 965                 return false;
 966         }
 967
 968         DEBUG(10,("open_was_deferred_smb2: mid = %llu\n",
 969                         (unsigned long long)mid));
 970
 971         return true;
 972 }
 973
 974 static void remove_deferred_open_message_smb2_internal(struct smbd_smb2_request *smb2req,
 975                                                         uint64_t mid)
 976 {
 977         struct smbd_smb2_create_state *state = NULL;
 978
 979         if (!smb2req->subreq) {
 980                 return;
 981         }
 982         if (!tevent_req_is_in_progress(smb2req->subreq)) {
 983                 return;
 984         }
 985         state = tevent_req_data(smb2req->subreq,
 986                         struct smbd_smb2_create_state);
 987         if (!state) {
 988                 return;
 989         }
 990
 991         DEBUG(10,("remove_deferred_open_message_smb2_internal: "
 992                 "mid %llu\n",
 993                 (unsigned long long)mid ));
 994
 995         /* Ensure we don't have any outstanding timer event. */
 996         TALLOC_FREE(state->te);
 997         /* Ensure we don't have any outstanding immediate event. */
 998         TALLOC_FREE(state->im);
 999 }
1000
1001 void remove_deferred_open_message_smb2(
1002         struct smbd_server_connection *sconn, uint64_t mid)
1003 {
1004         struct smbd_smb2_request *smb2req;
1005
1006         smb2req = find_open_smb2req(sconn, mid);
1007
1008         if (!smb2req) {
1009                 DEBUG(10,("remove_deferred_open_message_smb2: "
1010                         "can't find mid %llu\n",
1011                         (unsigned long long)mid ));
1012                 return;
1013         }
1014         remove_deferred_open_message_smb2_internal(smb2req, mid);
1015 }
1016
1017 static void smbd_smb2_create_request_dispatch_immediate(struct tevent_context *ctx,
1018                                         struct tevent_immediate *im,
1019                                         void *private_data)
1020 {
1021         struct smbd_smb2_request *smb2req = talloc_get_type_abort(private_data,
1022                                         struct smbd_smb2_request);
1023         struct smbd_server_connection *sconn = smb2req->sconn;
1024         uint64_t mid = get_mid_from_smb2req(smb2req);
1025         NTSTATUS status;
1026
1027         DEBUG(10,("smbd_smb2_create_request_dispatch_immediate: "
1028                 "re-dispatching mid %llu\n",
1029                 (unsigned long long)mid ));
1030
1031         status = smbd_smb2_request_dispatch(smb2req);
1032         if (!NT_STATUS_IS_OK(status)) {
1033                 smbd_server_connection_terminate(sconn, nt_errstr(status));
1034                 return;
1035         }
1036 }
1037
1038 bool schedule_deferred_open_message_smb2(
1039         struct smbd_server_connection *sconn, uint64_t mid)
1040 {
1041         struct smbd_smb2_create_state *state = NULL;
1042         struct smbd_smb2_request *smb2req;
1043
1044         smb2req = find_open_smb2req(sconn, mid);
1045
1046         if (!smb2req) {
1047                 DEBUG(10,("schedule_deferred_open_message_smb2: "
1048                         "can't find mid %llu\n",
1049                         (unsigned long long)mid ));
1050                 return false;
1051         }
1052         if (!smb2req->subreq) {
1053                 return false;
1054         }
1055         if (!tevent_req_is_in_progress(smb2req->subreq)) {
1056                 return false;
1057         }
1058         state = tevent_req_data(smb2req->subreq,
1059                         struct smbd_smb2_create_state);
1060         if (!state) {
1061                 return false;
1062         }
1063
1064         /* Ensure we don't have any outstanding timer event. */
1065         TALLOC_FREE(state->te);
1066         /* Ensure we don't have any outstanding immediate event. */
1067         TALLOC_FREE(state->im);
1068
1069         /*
1070          * This is subtle. We must null out the callback
1071          * before rescheduling, else the first call to
1072          * tevent_req_nterror() causes the _receive()
1073          * function to be called, this causing tevent_req_post()
1074          * to crash.
1075          */
1076         tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1077
1078         state->im = tevent_create_immediate(smb2req);
1079         if (!state->im) {
1080                 smbd_server_connection_terminate(smb2req->sconn,
1081                         nt_errstr(NT_STATUS_NO_MEMORY));
1082                 return false;
1083         }
1084
1085         DEBUG(10,("schedule_deferred_open_message_smb2: "
1086                 "re-processing mid %llu\n",
1087                 (unsigned long long)mid ));
1088
1089         tevent_schedule_immediate(state->im,
1090                         smb2req->sconn->ev_ctx,
1091                         smbd_smb2_create_request_dispatch_immediate,
1092                         smb2req);
1093
1094         return true;
1095 }
1096
1097 /*********************************************************
1098  Re-process this call.
1099 *********************************************************/
1100
1101 static void smb2_deferred_open_timer(struct event_context *ev,
1102                                         struct timed_event *te,
1103                                         struct timeval _tval,
1104                                         void *private_data)
1105 {
1106         NTSTATUS status;
1107         struct smbd_smb2_create_state *state = NULL;
1108         struct smbd_smb2_request *smb2req = talloc_get_type(private_data,
1109                                                 struct smbd_smb2_request);
1110
1111         DEBUG(10,("smb2_deferred_open_timer: [idx=%d], %s\n",
1112                 smb2req->current_idx,
1113                 tevent_req_default_print(smb2req->subreq, talloc_tos()) ));
1114
1115         state = tevent_req_data(smb2req->subreq,
1116                         struct smbd_smb2_create_state);
1117         if (!state) {
1118                 return;
1119         }
1120         /*
1121          * Null this out, don't talloc_free. It will
1122          * be talloc_free'd by the tevent library when
1123          * this returns.
1124          */
1125         state->te = NULL;
1126         /* Ensure we don't have any outstanding immediate event. */
1127         TALLOC_FREE(state->im);
1128
1129         /*
1130          * This is subtle. We must null out the callback
1131          * before rescheduling, else the first call to
1132          * tevent_req_nterror() causes the _receive()
1133          * function to be called, this causing tevent_req_post()
1134          * to crash.
1135          */
1136         tevent_req_set_callback(smb2req->subreq, NULL, NULL);
1137
1138         status = smbd_smb2_request_dispatch(smb2req);
1139
1140         if (!NT_STATUS_IS_OK(status)) {
1141                 smbd_server_connection_terminate(smb2req->sconn,
1142                                 nt_errstr(status));
1143         }
1144 }
1145
1146 static bool smbd_smb2_create_cancel(struct tevent_req *req)
1147 {
1148         struct smbd_smb2_request *smb2req = NULL;
1149         struct smbd_smb2_create_state *state = tevent_req_data(req,
1150                                 struct smbd_smb2_create_state);
1151         uint64_t mid;
1152
1153         if (!state) {
1154                 return false;
1155         }
1156
1157         if (!state->smb2req) {
1158                 return false;
1159         }
1160
1161         smb2req = state->smb2req;
1162         mid = get_mid_from_smb2req(smb2req);
1163
1164         if (is_deferred_open_async(state->private_data.data)) {
1165                 /* Can't cancel an async create. */
1166                 return false;
1167         }
1168
1169         remove_deferred_open_entry(state->id, mid,
1170                                    messaging_server_id(smb2req->sconn->msg_ctx));
1171         remove_deferred_open_message_smb2_internal(smb2req, mid);
1172         smb2req->cancelled = true;
1173
1174         tevent_req_done(req);
1175         return true;
1176 }
1177
1178 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
1179                                 struct timeval request_time,
1180                                 struct timeval timeout,
1181                                 struct file_id id,
1182                                 char *private_data,
1183                                 size_t priv_len)
1184 {
1185         struct tevent_req *req = NULL;
1186         struct smbd_smb2_create_state *state = NULL;
1187         struct timeval end_time;
1188
1189         if (!smb2req) {
1190                 return false;
1191         }
1192         req = smb2req->subreq;
1193         if (!req) {
1194                 return false;
1195         }
1196         state = tevent_req_data(req, struct smbd_smb2_create_state);
1197         if (!state) {
1198                 return false;
1199         }
1200         state->id = id;
1201         state->request_time = request_time;
1202         state->private_data = data_blob_talloc(state, private_data,
1203                                                 priv_len);
1204         if (!state->private_data.data) {
1205                 return false;
1206         }
1207
1208         /* Re-schedule us to retry on timer expiry. */
1209         end_time = timeval_sum(&request_time, &timeout);
1210
1211         DEBUG(10,("push_deferred_open_message_smb2: "
1212                 "timeout at %s\n",
1213                 timeval_string(talloc_tos(),
1214                                 &end_time,
1215                                 true) ));
1216
1217         state->te = tevent_add_timer(smb2req->sconn->ev_ctx,
1218                                 state,
1219                                 end_time,
1220                                 smb2_deferred_open_timer,
1221                                 smb2req);
1222         if (!state->te) {
1223                 return false;
1224         }
1225
1226         /* allow this request to be canceled */
1227         tevent_req_set_cancel_fn(req, smbd_smb2_create_cancel);
1228
1229         return true;
1230 }