source3/smbd/smb2_ioctl_network_fs.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Core SMB2 server
   4
   5    Copyright (C) Stefan Metzmacher 2009
   6    Copyright (C) David Disseldorp 2012
   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 "smbd/smbd.h"
  24 #include "smbd/globals.h"
  25 #include "../libcli/smb/smb_common.h"
  26 #include "../libcli/security/security.h"
  27 #include "../lib/util/tevent_ntstatus.h"
  28 #include "include/ntioctl.h"
  29 #include "../librpc/ndr/libndr.h"
  30 #include "librpc/gen_ndr/ndr_ioctl.h"
  31 #include "smb2_ioctl_private.h"
  32 #include "../lib/tsocket/tsocket.h"
  33
  34 #undef DBGC_CLASS
  35 #define DBGC_CLASS DBGC_SMB2
  36
  37 static void copychunk_pack_limits(struct srv_copychunk_rsp *cc_rsp)
  38 {
  39         cc_rsp->chunks_written = COPYCHUNK_MAX_CHUNKS;
  40         cc_rsp->chunk_bytes_written = COPYCHUNK_MAX_CHUNK_LEN;
  41         cc_rsp->total_bytes_written = COPYCHUNK_MAX_TOTAL_LEN;
  42 }
  43
  44 static NTSTATUS copychunk_check_limits(struct srv_copychunk_copy *cc_copy)
  45 {
  46         uint32_t i;
  47         uint32_t total_len = 0;
  48
  49         /*
  50          * [MS-SMB2] 3.3.5.15.6 Handling a Server-Side Data Copy Request
  51          * Send and invalid parameter response if:
  52          * - The ChunkCount value is greater than
  53          *   ServerSideCopyMaxNumberofChunks
  54          */
  55         if (cc_copy->chunk_count > COPYCHUNK_MAX_CHUNKS) {
  56                 return NT_STATUS_INVALID_PARAMETER;
  57         }
  58
  59         for (i = 0; i < cc_copy->chunk_count; i++) {
  60                 /*
  61                  * - The Length value in a single chunk is greater than
  62                  *   ServerSideCopyMaxChunkSize or equal to zero.
  63                  */
  64                 if ((cc_copy->chunks[i].length == 0)
  65                  || (cc_copy->chunks[i].length > COPYCHUNK_MAX_CHUNK_LEN)) {
  66                         return NT_STATUS_INVALID_PARAMETER;
  67                 }
  68                 total_len += cc_copy->chunks[i].length;
  69         }
  70         /*
  71          * - Sum of Lengths in all chunks is greater than
  72          *   ServerSideCopyMaxDataSize
  73          */
  74         if (total_len > COPYCHUNK_MAX_TOTAL_LEN) {
  75                 return NT_STATUS_INVALID_PARAMETER;
  76         }
  77
  78         return NT_STATUS_OK;
  79 }
  80
  81 struct fsctl_srv_copychunk_state {
  82         struct tevent_context *ev;
  83         struct connection_struct *conn;
  84         struct srv_copychunk_copy cc_copy;
  85         uint32_t current_chunk;
  86         NTSTATUS status;
  87         off_t total_written;
  88         uint32_t ctl_code;
  89         DATA_BLOB token;
  90         struct files_struct *src_fsp;
  91         struct files_struct *dst_fsp;
  92         enum {
  93                 COPYCHUNK_OUT_EMPTY = 0,
  94                 COPYCHUNK_OUT_LIMITS,
  95                 COPYCHUNK_OUT_RSP,
  96         } out_data;
  97 };
  98 static void fsctl_srv_copychunk_vfs_done(struct tevent_req *subreq);
  99
 100 static NTSTATUS fsctl_srv_copychunk_loop(struct tevent_req *req);
 101
 102 static struct tevent_req *fsctl_srv_copychunk_send(TALLOC_CTX *mem_ctx,
 103                                                    struct tevent_context *ev,
 104                                                    uint32_t ctl_code,
 105                                                    struct files_struct *dst_fsp,
 106                                                    DATA_BLOB *in_input,
 107                                                    size_t in_max_output,
 108                                                    struct smbd_smb2_request *smb2req)
 109 {
 110         struct tevent_req *req = NULL;
 111         struct fsctl_srv_copychunk_state *state = NULL;
 112         enum ndr_err_code ndr_ret;
 113         NTSTATUS status;
 114
 115         /* handler for both copy-chunk variants */
 116         SMB_ASSERT((ctl_code == FSCTL_SRV_COPYCHUNK)
 117                 || (ctl_code == FSCTL_SRV_COPYCHUNK_WRITE));
 118
 119         req = tevent_req_create(mem_ctx, &state,
 120                                 struct fsctl_srv_copychunk_state);
 121         if (req == NULL) {
 122                 return NULL;
 123         }
 124         *state = (struct fsctl_srv_copychunk_state) {
 125                 .conn = dst_fsp->conn,
 126                 .ev = ev,
 127                 .ctl_code = ctl_code,
 128                 .dst_fsp = dst_fsp,
 129         };
 130
 131         if (in_max_output < sizeof(struct srv_copychunk_rsp)) {
 132                 DEBUG(3, ("max output %d not large enough to hold copy chunk "
 133                           "response %lu\n", (int)in_max_output,
 134                           (unsigned long)sizeof(struct srv_copychunk_rsp)));
 135                 state->status = NT_STATUS_INVALID_PARAMETER;
 136                 tevent_req_nterror(req, state->status);
 137                 return tevent_req_post(req, ev);
 138         }
 139
 140         ndr_ret = ndr_pull_struct_blob(in_input, mem_ctx, &state->cc_copy,
 141                         (ndr_pull_flags_fn_t)ndr_pull_srv_copychunk_copy);
 142         if (ndr_ret != NDR_ERR_SUCCESS) {
 143                 DEBUG(0, ("failed to unmarshall copy chunk req\n"));
 144                 state->status = NT_STATUS_INVALID_PARAMETER;
 145                 tevent_req_nterror(req, state->status);
 146                 return tevent_req_post(req, ev);
 147         }
 148
 149         state->token = data_blob_const(state->cc_copy.source_key,
 150                                        sizeof(state->cc_copy.source_key));
 151
 152         state->status = copychunk_check_limits(&state->cc_copy);
 153         if (!NT_STATUS_IS_OK(state->status)) {
 154                 DEBUG(3, ("copy chunk req exceeds limits\n"));
 155                 state->out_data = COPYCHUNK_OUT_LIMITS;
 156                 tevent_req_nterror(req, state->status);
 157                 return tevent_req_post(req, ev);
 158         }
 159
 160         /* any errors from here onwards should carry copychunk response data */
 161         state->out_data = COPYCHUNK_OUT_RSP;
 162
 163         status = fsctl_srv_copychunk_loop(req);
 164         if (tevent_req_nterror(req, status)) {
 165                 return tevent_req_post(req, ev);
 166         }
 167
 168         return req;
 169 }
 170
 171 static NTSTATUS fsctl_srv_copychunk_loop(struct tevent_req *req)
 172 {
 173         struct fsctl_srv_copychunk_state *state = tevent_req_data(
 174                 req, struct fsctl_srv_copychunk_state);
 175         struct tevent_req *subreq = NULL;
 176         uint32_t length = 0;
 177         off_t source_off = 0;
 178         off_t target_off = 0;
 179
 180         /*
 181          * chunk_count can be 0 which must either just do nothing returning
 182          * success saying number of copied chunks is 0 (verified against
 183          * Windows).
 184          *
 185          * Or it can be a special macOS copyfile request, so we send this into
 186          * the VFS, vfs_fruit if loaded implements the macOS copyile semantics.
 187          */
 188         if (state->cc_copy.chunk_count > 0) {
 189                 struct srv_copychunk *chunk = NULL;
 190
 191                 chunk = &state->cc_copy.chunks[state->current_chunk];
 192                 length = chunk->length;
 193                 source_off = chunk->source_off;
 194                 target_off = chunk->target_off;
 195         }
 196
 197         subreq = SMB_VFS_OFFLOAD_WRITE_SEND(state->dst_fsp->conn,
 198                                          state,
 199                                          state->ev,
 200                                          state->ctl_code,
 201                                          &state->token,
 202                                          source_off,
 203                                          state->dst_fsp,
 204                                          target_off,
 205                                          length);
 206         if (tevent_req_nomem(subreq, req)) {
 207                 return NT_STATUS_NO_MEMORY;
 208         }
 209         tevent_req_set_callback(subreq, fsctl_srv_copychunk_vfs_done, req);
 210
 211         return NT_STATUS_OK;
 212 }
 213
 214 static void fsctl_srv_copychunk_vfs_done(struct tevent_req *subreq)
 215 {
 216         struct tevent_req *req = tevent_req_callback_data(
 217                 subreq, struct tevent_req);
 218         struct fsctl_srv_copychunk_state *state = tevent_req_data(
 219                 req, struct fsctl_srv_copychunk_state);
 220         off_t chunk_nwritten;
 221         NTSTATUS status;
 222
 223         status = SMB_VFS_OFFLOAD_WRITE_RECV(state->conn, subreq,
 224                                          &chunk_nwritten);
 225         TALLOC_FREE(subreq);
 226         if (!NT_STATUS_IS_OK(status)) {
 227                 DBG_ERR("copy chunk failed [%s] chunk [%u] of [%u]\n",
 228                         nt_errstr(status),
 229                         (unsigned int)state->current_chunk,
 230                         (unsigned int)state->cc_copy.chunk_count);
 231                 tevent_req_nterror(req, status);
 232                 return;
 233         }
 234
 235         DBG_DEBUG("good copy chunk [%u] of [%u]\n",
 236                   (unsigned int)state->current_chunk,
 237                   (unsigned int)state->cc_copy.chunk_count);
 238         state->total_written += chunk_nwritten;
 239
 240         if (state->cc_copy.chunk_count == 0) {
 241                 /*
 242                  * This must not produce an error but just return a chunk count
 243                  * of 0 in the response.
 244                  */
 245                 tevent_req_done(req);
 246                 return;
 247         }
 248
 249         state->current_chunk++;
 250         if (state->current_chunk == state->cc_copy.chunk_count) {
 251                 tevent_req_done(req);
 252                 return;
 253         }
 254
 255         status = fsctl_srv_copychunk_loop(req);
 256         if (tevent_req_nterror(req, status)) {
 257                 return;
 258         }
 259 }
 260
 261 static NTSTATUS fsctl_srv_copychunk_recv(struct tevent_req *req,
 262                                          struct srv_copychunk_rsp *cc_rsp,
 263                                          bool *pack_rsp)
 264 {
 265         struct fsctl_srv_copychunk_state *state = tevent_req_data(req,
 266                                         struct fsctl_srv_copychunk_state);
 267         NTSTATUS status;
 268
 269         switch (state->out_data) {
 270         case COPYCHUNK_OUT_EMPTY:
 271                 *pack_rsp = false;
 272                 break;
 273         case COPYCHUNK_OUT_LIMITS:
 274                 /* 2.2.32.1 - send back our maximum transfer size limits */
 275                 copychunk_pack_limits(cc_rsp);
 276                 *pack_rsp = true;
 277                 break;
 278         case COPYCHUNK_OUT_RSP:
 279                 cc_rsp->chunks_written = state->current_chunk;
 280                 cc_rsp->chunk_bytes_written = 0;
 281                 cc_rsp->total_bytes_written = state->total_written;
 282                 *pack_rsp = true;
 283                 break;
 284         default:        /* not reached */
 285                 assert(1);
 286                 break;
 287         }
 288         status = tevent_req_simple_recv_ntstatus(req);
 289         return status;
 290 }
 291
 292 static NTSTATUS fsctl_network_iface_info(TALLOC_CTX *mem_ctx,
 293                                          struct tevent_context *ev,
 294                                          struct smbXsrv_connection *xconn,
 295                                          DATA_BLOB *in_input,
 296                                          uint32_t in_max_output,
 297                                          DATA_BLOB *out_output)
 298 {
 299         struct fsctl_net_iface_info *array = NULL;
 300         struct fsctl_net_iface_info *first = NULL;
 301         struct fsctl_net_iface_info *last = NULL;
 302         size_t i;
 303         size_t num_ifaces = iface_count();
 304         enum ndr_err_code ndr_err;
 305
 306         if (in_input->length != 0) {
 307                 return NT_STATUS_INVALID_PARAMETER;
 308         }
 309
 310         *out_output = data_blob_null;
 311
 312         array = talloc_zero_array(mem_ctx,
 313                                   struct fsctl_net_iface_info,
 314                                   num_ifaces);
 315         if (array == NULL) {
 316                 return NT_STATUS_NO_MEMORY;
 317         }
 318
 319         for (i=0; i < num_ifaces; i++) {
 320                 struct fsctl_net_iface_info *cur = &array[i];
 321                 const struct interface *iface = get_interface(i);
 322                 const struct sockaddr_storage *ifss = &iface->ip;
 323                 const void *ifptr = ifss;
 324                 const struct sockaddr *ifsa = (const struct sockaddr *)ifptr;
 325                 struct tsocket_address *a = NULL;
 326                 char *addr;
 327                 bool ok;
 328                 int ret;
 329
 330                 ret = tsocket_address_bsd_from_sockaddr(array,
 331                                         ifsa, sizeof(struct sockaddr_storage),
 332                                         &a);
 333                 if (ret != 0) {
 334                         return map_nt_error_from_unix_common(errno);
 335                 }
 336
 337                 ok = tsocket_address_is_inet(a, "ip");
 338                 if (!ok) {
 339                         continue;
 340                 }
 341
 342                 addr = tsocket_address_inet_addr_string(a, array);
 343                 if (addr == NULL) {
 344                         TALLOC_FREE(array);
 345                         return NT_STATUS_NO_MEMORY;
 346                 }
 347
 348                 cur->ifindex = iface->if_index;
 349                 if (cur->ifindex == 0) {
 350                         /*
 351                          * Did not get interface index from kernel,
 352                          * nor from the config. ==> Apply a common
 353                          * default value for these cases.
 354                          */
 355                         cur->ifindex = UINT32_MAX;
 356                 }
 357                 cur->capability = iface->capability;
 358                 cur->linkspeed = iface->linkspeed;
 359                 if (cur->linkspeed == 0) {
 360                         DBG_DEBUG("Link speed 0 on interface [%s] - skipping "
 361                                   "address [%s].\n", iface->name, addr);
 362                         continue;
 363                 }
 364
 365                 ok = tsocket_address_is_inet(a, "ipv4");
 366                 if (ok) {
 367                         cur->sockaddr.family = FSCTL_NET_IFACE_AF_INET;
 368                         cur->sockaddr.saddr.saddr_in.ipv4 = addr;
 369                 }
 370                 ok = tsocket_address_is_inet(a, "ipv6");
 371                 if (ok) {
 372                         cur->sockaddr.family = FSCTL_NET_IFACE_AF_INET6;
 373                         cur->sockaddr.saddr.saddr_in6.ipv6 = addr;
 374                 }
 375
 376                 if (first == NULL) {
 377                         first = cur;
 378                 }
 379                 if (last != NULL) {
 380                         last->next = cur;
 381                 }
 382                 last = cur;
 383         }
 384
 385         if (first == NULL) {
 386                 TALLOC_FREE(array);
 387                 return NT_STATUS_OK;
 388         }
 389
 390         if (DEBUGLEVEL >= 10) {
 391                 NDR_PRINT_DEBUG(fsctl_net_iface_info, first);
 392         }
 393
 394         ndr_err = ndr_push_struct_blob(out_output, mem_ctx, first,
 395                         (ndr_push_flags_fn_t)ndr_push_fsctl_net_iface_info);
 396         TALLOC_FREE(array);
 397         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 398                 return ndr_map_error2ntstatus(ndr_err);
 399         }
 400
 401         return NT_STATUS_OK;
 402 }
 403
 404 static NTSTATUS fsctl_validate_neg_info(TALLOC_CTX *mem_ctx,
 405                                         struct tevent_context *ev,
 406                                         struct smbXsrv_connection *conn,
 407                                         DATA_BLOB *in_input,
 408                                         uint32_t in_max_output,
 409                                         DATA_BLOB *out_output,
 410                                         bool *disconnect)
 411 {
 412         uint32_t in_capabilities;
 413         DATA_BLOB in_guid_blob;
 414         struct GUID in_guid;
 415         uint16_t in_security_mode;
 416         uint16_t in_num_dialects;
 417         uint16_t dialect;
 418         DATA_BLOB out_guid_blob;
 419         NTSTATUS status;
 420         enum protocol_types protocol = PROTOCOL_NONE;
 421
 422         if (lp_server_max_protocol() <= PROTOCOL_SMB2_02) {
 423                 /*
 424                  * With SMB 2.02 we didn't get the
 425                  * capabitities, client guid, security mode
 426                  * and dialects the client would have offered.
 427                  *
 428                  * So we behave compatible with a true
 429                  * SMB 2.02 server and return NT_STATUS_FILE_CLOSED.
 430                  *
 431                  * As SMB >= 2.10 offers the two phase SMB2 Negotiate
 432                  * we keep supporting FSCTL_VALIDATE_NEGOTIATE_INFO
 433                  * starting with SMB 2.10, while Windows only supports
 434                  * it starting with SMB > 2.10.
 435                  */
 436                 return NT_STATUS_FILE_CLOSED;
 437         }
 438
 439         if (in_input->length < 0x18) {
 440                 return NT_STATUS_INVALID_PARAMETER;
 441         }
 442
 443         in_capabilities = IVAL(in_input->data, 0x00);
 444         in_guid_blob = data_blob_const(in_input->data + 0x04, 16);
 445         in_security_mode = SVAL(in_input->data, 0x14);
 446         in_num_dialects = SVAL(in_input->data, 0x16);
 447
 448         if (in_input->length < (0x18 + in_num_dialects*2)) {
 449                 return NT_STATUS_INVALID_PARAMETER;
 450         }
 451
 452         if (in_max_output < 0x18) {
 453                 return NT_STATUS_BUFFER_TOO_SMALL;
 454         }
 455
 456         status = GUID_from_ndr_blob(&in_guid_blob, &in_guid);
 457         if (!NT_STATUS_IS_OK(status)) {
 458                 return status;
 459         }
 460
 461         /*
 462          * From: [MS-SMB2]
 463          * 3.3.5.15.12 Handling a Validate Negotiate Info Request
 464          *
 465          * The server MUST determine the greatest common dialect
 466          * between the dialects it implements and the Dialects array
 467          * of the VALIDATE_NEGOTIATE_INFO request. If no dialect is
 468          * matched, or if the value is not equal to Connection.Dialect,
 469          * the server MUST terminate the transport connection
 470          * and free the Connection object.
 471          */
 472         protocol = smbd_smb2_protocol_dialect_match(in_input->data + 0x18,
 473                                                     in_num_dialects,
 474                                                     &dialect);
 475         if (conn->protocol != protocol) {
 476                 *disconnect = true;
 477                 return NT_STATUS_ACCESS_DENIED;
 478         }
 479
 480         if (!GUID_equal(&in_guid, &conn->smb2.client.guid)) {
 481                 *disconnect = true;
 482                 return NT_STATUS_ACCESS_DENIED;
 483         }
 484
 485         if (in_security_mode != conn->smb2.client.security_mode) {
 486                 *disconnect = true;
 487                 return NT_STATUS_ACCESS_DENIED;
 488         }
 489
 490         if (in_capabilities != conn->smb2.client.capabilities) {
 491                 *disconnect = true;
 492                 return NT_STATUS_ACCESS_DENIED;
 493         }
 494
 495         status = GUID_to_ndr_blob(&conn->smb2.server.guid, mem_ctx,
 496                                   &out_guid_blob);
 497         if (!NT_STATUS_IS_OK(status)) {
 498                 return status;
 499         }
 500
 501         *out_output = data_blob_talloc(mem_ctx, NULL, 0x18);
 502         if (out_output->data == NULL) {
 503                 return NT_STATUS_NO_MEMORY;
 504         }
 505
 506         SIVAL(out_output->data, 0x00, conn->smb2.server.capabilities);
 507         memcpy(out_output->data+0x04, out_guid_blob.data, 16);
 508         SSVAL(out_output->data, 0x14, conn->smb2.server.security_mode);
 509         SSVAL(out_output->data, 0x16, conn->smb2.server.dialect);
 510
 511         return NT_STATUS_OK;
 512 }
 513
 514 static void smb2_ioctl_network_fs_copychunk_done(struct tevent_req *subreq);
 515 static void smb2_ioctl_network_fs_offload_read_done(struct tevent_req *subreq);
 516
 517 struct tevent_req *smb2_ioctl_network_fs(uint32_t ctl_code,
 518                                          struct tevent_context *ev,
 519                                          struct tevent_req *req,
 520                                          struct smbd_smb2_ioctl_state *state)
 521 {
 522         struct tevent_req *subreq;
 523         NTSTATUS status;
 524
 525         switch (ctl_code) {
 526         /*
 527          * [MS-SMB2] 2.2.31
 528          * FSCTL_SRV_COPYCHUNK is issued when a handle has
 529          * FILE_READ_DATA and FILE_WRITE_DATA access to the file;
 530          * FSCTL_SRV_COPYCHUNK_WRITE is issued when a handle only has
 531          * FILE_WRITE_DATA access.
 532          */
 533         case FSCTL_SRV_COPYCHUNK_WRITE: /* FALL THROUGH */
 534         case FSCTL_SRV_COPYCHUNK:
 535                 subreq = fsctl_srv_copychunk_send(state, ev,
 536                                                   ctl_code,
 537                                                   state->fsp,
 538                                                   &state->in_input,
 539                                                   state->in_max_output,
 540                                                   state->smb2req);
 541                 if (tevent_req_nomem(subreq, req)) {
 542                         return tevent_req_post(req, ev);
 543                 }
 544                 tevent_req_set_callback(subreq,
 545                                         smb2_ioctl_network_fs_copychunk_done,
 546                                         req);
 547                 return req;
 548                 break;
 549         case FSCTL_QUERY_NETWORK_INTERFACE_INFO:
 550                 if (!state->smbreq->xconn->client->server_multi_channel_enabled)
 551                 {
 552                         if (IS_IPC(state->smbreq->conn)) {
 553                                 status = NT_STATUS_FS_DRIVER_REQUIRED;
 554                         } else {
 555                                 status = NT_STATUS_INVALID_DEVICE_REQUEST;
 556                         }
 557
 558                         tevent_req_nterror(req, status);
 559                         return tevent_req_post(req, ev);
 560                 }
 561
 562                 status = fsctl_network_iface_info(state, ev,
 563                                                   state->smbreq->xconn,
 564                                                   &state->in_input,
 565                                                   state->in_max_output,
 566                                                   &state->out_output);
 567                 if (!tevent_req_nterror(req, status)) {
 568                         tevent_req_done(req);
 569                 }
 570                 return tevent_req_post(req, ev);
 571                 break;
 572         case FSCTL_VALIDATE_NEGOTIATE_INFO:
 573                 status = fsctl_validate_neg_info(state, ev,
 574                                                  state->smbreq->xconn,
 575                                                  &state->in_input,
 576                                                  state->in_max_output,
 577                                                  &state->out_output,
 578                                                  &state->disconnect);
 579                 if (!tevent_req_nterror(req, status)) {
 580                         tevent_req_done(req);
 581                 }
 582                 return tevent_req_post(req, ev);
 583                 break;
 584         case FSCTL_SRV_REQUEST_RESUME_KEY:
 585                 subreq = SMB_VFS_OFFLOAD_READ_SEND(state,
 586                                                    ev,
 587                                                    state->fsp,
 588                                                    FSCTL_SRV_REQUEST_RESUME_KEY,
 589                                                    0, 0, 0);
 590                 if (tevent_req_nomem(subreq, req)) {
 591                         return tevent_req_post(req, ev);
 592                 }
 593                 tevent_req_set_callback(
 594                         subreq, smb2_ioctl_network_fs_offload_read_done, req);
 595                 return req;
 596
 597         default: {
 598                 uint8_t *out_data = NULL;
 599                 uint32_t out_data_len = 0;
 600
 601                 if (state->fsp == NULL) {
 602                         status = NT_STATUS_NOT_SUPPORTED;
 603                 } else {
 604                         status = SMB_VFS_FSCTL(state->fsp,
 605                                                state,
 606                                                ctl_code,
 607                                                state->smbreq->flags2,
 608                                                state->in_input.data,
 609                                                state->in_input.length,
 610                                                &out_data,
 611                                                state->in_max_output,
 612                                                &out_data_len);
 613                         state->out_output = data_blob_const(out_data, out_data_len);
 614                         if (NT_STATUS_IS_OK(status)) {
 615                                 tevent_req_done(req);
 616                                 return tevent_req_post(req, ev);
 617                         }
 618                 }
 619
 620                 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
 621                         if (IS_IPC(state->smbreq->conn)) {
 622                                 status = NT_STATUS_FS_DRIVER_REQUIRED;
 623                         } else {
 624                                 status = NT_STATUS_INVALID_DEVICE_REQUEST;
 625                         }
 626                 }
 627
 628                 tevent_req_nterror(req, status);
 629                 return tevent_req_post(req, ev);
 630                 break;
 631         }
 632         }
 633
 634         tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
 635         return tevent_req_post(req, ev);
 636 }
 637
 638 static void smb2_ioctl_network_fs_copychunk_done(struct tevent_req *subreq)
 639 {
 640         struct tevent_req *req = tevent_req_callback_data(subreq,
 641                                                           struct tevent_req);
 642         struct smbd_smb2_ioctl_state *ioctl_state = tevent_req_data(req,
 643                                                 struct smbd_smb2_ioctl_state);
 644         struct srv_copychunk_rsp cc_rsp;
 645         NTSTATUS status;
 646         bool pack_rsp = false;
 647
 648         ZERO_STRUCT(cc_rsp);
 649         status = fsctl_srv_copychunk_recv(subreq, &cc_rsp, &pack_rsp);
 650         TALLOC_FREE(subreq);
 651         if (pack_rsp == true) {
 652                 enum ndr_err_code ndr_ret;
 653                 ndr_ret = ndr_push_struct_blob(&ioctl_state->out_output,
 654                                                ioctl_state,
 655                                                &cc_rsp,
 656                                 (ndr_push_flags_fn_t)ndr_push_srv_copychunk_rsp);
 657                 if (ndr_ret != NDR_ERR_SUCCESS) {
 658                         status = NT_STATUS_INTERNAL_ERROR;
 659                 }
 660         }
 661
 662         if (!tevent_req_nterror(req, status)) {
 663                 tevent_req_done(req);
 664         }
 665 }
 666
 667 static void smb2_ioctl_network_fs_offload_read_done(struct tevent_req *subreq)
 668 {
 669         struct tevent_req *req = tevent_req_callback_data(
 670                 subreq, struct tevent_req);
 671         struct smbd_smb2_ioctl_state *state = tevent_req_data(
 672                 req, struct smbd_smb2_ioctl_state);
 673         struct req_resume_key_rsp rkey_rsp;
 674         enum ndr_err_code ndr_ret;
 675         DATA_BLOB token;
 676         NTSTATUS status;
 677
 678         status = SMB_VFS_OFFLOAD_READ_RECV(subreq,
 679                                            state->fsp->conn,
 680                                            state,
 681                                            &token);
 682         TALLOC_FREE(subreq);
 683         if (tevent_req_nterror(req, status)) {
 684                 return;
 685         }
 686
 687         if (token.length != sizeof(rkey_rsp.resume_key)) {
 688                 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
 689                 return;
 690         }
 691
 692         ZERO_STRUCT(rkey_rsp);
 693         memcpy(rkey_rsp.resume_key, token.data, token.length);
 694
 695         ndr_ret = ndr_push_struct_blob(&state->out_output, state, &rkey_rsp,
 696                         (ndr_push_flags_fn_t)ndr_push_req_resume_key_rsp);
 697         if (ndr_ret != NDR_ERR_SUCCESS) {
 698                 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
 699                 return;
 700         }
 701
 702         tevent_req_done(req);
 703         return;
 704 }