source3/smbd/reply.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Main SMB reply routines
   4    Copyright (C) Andrew Tridgell 1992-1998
   5    Copyright (C) Andrew Bartlett      2001
   6    Copyright (C) Jeremy Allison 1992-2007.
   7    Copyright (C) Volker Lendecke 2007
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22 /*
  23    This file handles most of the reply_ calls that the server
  24    makes to handle specific protocols
  25 */
  26
  27 #include "includes.h"
  28 #include "smbd/globals.h"
  29
  30 extern enum protocol_types Protocol;
  31
  32 /****************************************************************************
  33  Ensure we check the path in *exactly* the same way as W2K for a findfirst/findnext
  34  path or anything including wildcards.
  35  We're assuming here that '/' is not the second byte in any multibyte char
  36  set (a safe assumption). '\\' *may* be the second byte in a multibyte char
  37  set.
  38 ****************************************************************************/
  39
  40 /* Custom version for processing POSIX paths. */
  41 #define IS_PATH_SEP(c,posix_only) ((c) == '/' || (!(posix_only) && (c) == '\\'))
  42
  43 static NTSTATUS check_path_syntax_internal(char *path,
  44                                            bool posix_path,
  45                                            bool *p_last_component_contains_wcard)
  46 {
  47         char *d = path;
  48         const char *s = path;
  49         NTSTATUS ret = NT_STATUS_OK;
  50         bool start_of_name_component = True;
  51         bool stream_started = false;
  52
  53         *p_last_component_contains_wcard = False;
  54
  55         while (*s) {
  56                 if (stream_started) {
  57                         switch (*s) {
  58                         case '/':
  59                         case '\\':
  60                                 return NT_STATUS_OBJECT_NAME_INVALID;
  61                         case ':':
  62                                 if (s[1] == '\0') {
  63                                         return NT_STATUS_OBJECT_NAME_INVALID;
  64                                 }
  65                                 if (strchr_m(&s[1], ':')) {
  66                                         return NT_STATUS_OBJECT_NAME_INVALID;
  67                                 }
  68                                 if (StrCaseCmp(s, ":$DATA") != 0) {
  69                                         return NT_STATUS_INVALID_PARAMETER;
  70                                 }
  71                                 break;
  72                         }
  73                 }
  74
  75                 if (!stream_started && *s == ':') {
  76                         if (*p_last_component_contains_wcard) {
  77                                 return NT_STATUS_OBJECT_NAME_INVALID;
  78                         }
  79                         /* stream names allow more characters than file names */
  80                         stream_started = true;
  81                         start_of_name_component = false;
  82                         posix_path = true;
  83
  84                         if (s[1] == '\0') {
  85                                 return NT_STATUS_OBJECT_NAME_INVALID;
  86                         }
  87                 }
  88
  89                 if (!stream_started && IS_PATH_SEP(*s,posix_path)) {
  90                         /*
  91                          * Safe to assume is not the second part of a mb char
  92                          * as this is handled below.
  93                          */
  94                         /* Eat multiple '/' or '\\' */
  95                         while (IS_PATH_SEP(*s,posix_path)) {
  96                                 s++;
  97                         }
  98                         if ((d != path) && (*s != '\0')) {
  99                                 /* We only care about non-leading or trailing '/' or '\\' */
 100                                 *d++ = '/';
 101                         }
 102
 103                         start_of_name_component = True;
 104                         /* New component. */
 105                         *p_last_component_contains_wcard = False;
 106                         continue;
 107                 }
 108
 109                 if (start_of_name_component) {
 110                         if ((s[0] == '.') && (s[1] == '.') && (IS_PATH_SEP(s[2],posix_path) || s[2] == '\0')) {
 111                                 /* Uh oh - "/../" or "\\..\\"  or "/..\0" or "\\..\0" ! */
 112
 113                                 /*
 114                                  * No mb char starts with '.' so we're safe checking the directory separator here.
 115                                  */
 116
 117                                 /* If  we just added a '/' - delete it */
 118                                 if ((d > path) && (*(d-1) == '/')) {
 119                                         *(d-1) = '\0';
 120                                         d--;
 121                                 }
 122
 123                                 /* Are we at the start ? Can't go back further if so. */
 124                                 if (d <= path) {
 125                                         ret = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
 126                                         break;
 127                                 }
 128                                 /* Go back one level... */
 129                                 /* We know this is safe as '/' cannot be part of a mb sequence. */
 130                                 /* NOTE - if this assumption is invalid we are not in good shape... */
 131                                 /* Decrement d first as d points to the *next* char to write into. */
 132                                 for (d--; d > path; d--) {
 133                                         if (*d == '/')
 134                                                 break;
 135                                 }
 136                                 s += 2; /* Else go past the .. */
 137                                 /* We're still at the start of a name component, just the previous one. */
 138                                 continue;
 139
 140                         } else if ((s[0] == '.') && ((s[1] == '\0') || IS_PATH_SEP(s[1],posix_path))) {
 141                                 if (posix_path) {
 142                                         /* Eat the '.' */
 143                                         s++;
 144                                         continue;
 145                                 }
 146                         }
 147
 148                 }
 149
 150                 if (!(*s & 0x80)) {
 151                         if (!posix_path) {
 152                                 if (*s <= 0x1f || *s == '|') {
 153                                         return NT_STATUS_OBJECT_NAME_INVALID;
 154                                 }
 155                                 switch (*s) {
 156                                         case '*':
 157                                         case '?':
 158                                         case '<':
 159                                         case '>':
 160                                         case '"':
 161                                                 *p_last_component_contains_wcard = True;
 162                                                 break;
 163                                         default:
 164                                                 break;
 165                                 }
 166                         }
 167                         *d++ = *s++;
 168                 } else {
 169                         size_t siz;
 170                         /* Get the size of the next MB character. */
 171                         next_codepoint(s,&siz);
 172                         switch(siz) {
 173                                 case 5:
 174                                         *d++ = *s++;
 175                                         /*fall through*/
 176                                 case 4:
 177                                         *d++ = *s++;
 178                                         /*fall through*/
 179                                 case 3:
 180                                         *d++ = *s++;
 181                                         /*fall through*/
 182                                 case 2:
 183                                         *d++ = *s++;
 184                                         /*fall through*/
 185                                 case 1:
 186                                         *d++ = *s++;
 187                                         break;
 188                                 default:
 189                                         DEBUG(0,("check_path_syntax_internal: character length assumptions invalid !\n"));
 190                                         *d = '\0';
 191                                         return NT_STATUS_INVALID_PARAMETER;
 192                         }
 193                 }
 194                 start_of_name_component = False;
 195         }
 196
 197         *d = '\0';
 198
 199         return ret;
 200 }
 201
 202 /****************************************************************************
 203  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
 204  No wildcards allowed.
 205 ****************************************************************************/
 206
 207 NTSTATUS check_path_syntax(char *path)
 208 {
 209         bool ignore;
 210         return check_path_syntax_internal(path, False, &ignore);
 211 }
 212
 213 /****************************************************************************
 214  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
 215  Wildcards allowed - p_contains_wcard returns true if the last component contained
 216  a wildcard.
 217 ****************************************************************************/
 218
 219 NTSTATUS check_path_syntax_wcard(char *path, bool *p_contains_wcard)
 220 {
 221         return check_path_syntax_internal(path, False, p_contains_wcard);
 222 }
 223
 224 /****************************************************************************
 225  Check the path for a POSIX client.
 226  We're assuming here that '/' is not the second byte in any multibyte char
 227  set (a safe assumption).
 228 ****************************************************************************/
 229
 230 NTSTATUS check_path_syntax_posix(char *path)
 231 {
 232         bool ignore;
 233         return check_path_syntax_internal(path, True, &ignore);
 234 }
 235
 236 /****************************************************************************
 237  Pull a string and check the path allowing a wilcard - provide for error return.
 238 ****************************************************************************/
 239
 240 size_t srvstr_get_path_wcard(TALLOC_CTX *ctx,
 241                         const char *base_ptr,
 242                         uint16 smb_flags2,
 243                         char **pp_dest,
 244                         const char *src,
 245                         size_t src_len,
 246                         int flags,
 247                         NTSTATUS *err,
 248                         bool *contains_wcard)
 249 {
 250         size_t ret;
 251
 252         *pp_dest = NULL;
 253
 254         ret = srvstr_pull_talloc(ctx, base_ptr, smb_flags2, pp_dest, src,
 255                                  src_len, flags);
 256
 257         if (!*pp_dest) {
 258                 *err = NT_STATUS_INVALID_PARAMETER;
 259                 return ret;
 260         }
 261
 262         *contains_wcard = False;
 263
 264         if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
 265                 /*
 266                  * For a DFS path the function parse_dfs_path()
 267                  * will do the path processing, just make a copy.
 268                  */
 269                 *err = NT_STATUS_OK;
 270                 return ret;
 271         }
 272
 273         if (lp_posix_pathnames()) {
 274                 *err = check_path_syntax_posix(*pp_dest);
 275         } else {
 276                 *err = check_path_syntax_wcard(*pp_dest, contains_wcard);
 277         }
 278
 279         return ret;
 280 }
 281
 282 /****************************************************************************
 283  Pull a string and check the path - provide for error return.
 284 ****************************************************************************/
 285
 286 size_t srvstr_get_path(TALLOC_CTX *ctx,
 287                         const char *base_ptr,
 288                         uint16 smb_flags2,
 289                         char **pp_dest,
 290                         const char *src,
 291                         size_t src_len,
 292                         int flags,
 293                         NTSTATUS *err)
 294 {
 295         bool ignore;
 296         return srvstr_get_path_wcard(ctx, base_ptr, smb_flags2, pp_dest, src,
 297                                      src_len, flags, err, &ignore);
 298 }
 299
 300 size_t srvstr_get_path_req_wcard(TALLOC_CTX *mem_ctx, struct smb_request *req,
 301                                  char **pp_dest, const char *src, int flags,
 302                                  NTSTATUS *err, bool *contains_wcard)
 303 {
 304         return srvstr_get_path_wcard(mem_ctx, (char *)req->inbuf, req->flags2,
 305                                      pp_dest, src, smbreq_bufrem(req, src),
 306                                      flags, err, contains_wcard);
 307 }
 308
 309 size_t srvstr_get_path_req(TALLOC_CTX *mem_ctx, struct smb_request *req,
 310                            char **pp_dest, const char *src, int flags,
 311                            NTSTATUS *err)
 312 {
 313         bool ignore;
 314         return srvstr_get_path_req_wcard(mem_ctx, req, pp_dest, src,
 315                                          flags, err, &ignore);
 316 }
 317
 318 /****************************************************************************
 319  Check if we have a correct fsp pointing to a file. Basic check for open fsp.
 320 ****************************************************************************/
 321
 322 bool check_fsp_open(connection_struct *conn, struct smb_request *req,
 323                     files_struct *fsp)
 324 {
 325         if (!(fsp) || !(conn)) {
 326                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 327                 return False;
 328         }
 329         if (((conn) != (fsp)->conn) || req->vuid != (fsp)->vuid) {
 330                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 331                 return False;
 332         }
 333         return True;
 334 }
 335
 336 /****************************************************************************
 337  Check if we have a correct fsp pointing to a file.
 338 ****************************************************************************/
 339
 340 bool check_fsp(connection_struct *conn, struct smb_request *req,
 341                files_struct *fsp)
 342 {
 343         if (!check_fsp_open(conn, req, fsp)) {
 344                 return False;
 345         }
 346         if ((fsp)->is_directory) {
 347                 reply_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
 348                 return False;
 349         }
 350         if ((fsp)->fh->fd == -1) {
 351                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 352                 return False;
 353         }
 354         (fsp)->num_smb_operations++;
 355         return True;
 356 }
 357
 358 /****************************************************************************
 359  Check if we have a correct fsp pointing to a quota fake file. Replacement for
 360  the CHECK_NTQUOTA_HANDLE_OK macro.
 361 ****************************************************************************/
 362
 363 bool check_fsp_ntquota_handle(connection_struct *conn, struct smb_request *req,
 364                               files_struct *fsp)
 365 {
 366         if (!check_fsp_open(conn, req, fsp)) {
 367                 return false;
 368         }
 369
 370         if (fsp->is_directory) {
 371                 return false;
 372         }
 373
 374         if (fsp->fake_file_handle == NULL) {
 375                 return false;
 376         }
 377
 378         if (fsp->fake_file_handle->type != FAKE_FILE_TYPE_QUOTA) {
 379                 return false;
 380         }
 381
 382         if (fsp->fake_file_handle->private_data == NULL) {
 383                 return false;
 384         }
 385
 386         return true;
 387 }
 388
 389 /****************************************************************************
 390  Check if we have a correct fsp. Replacement for the FSP_BELONGS_CONN macro
 391 ****************************************************************************/
 392
 393 bool fsp_belongs_conn(connection_struct *conn, struct smb_request *req,
 394                       files_struct *fsp)
 395 {
 396         if ((fsp) && (conn) && ((conn)==(fsp)->conn)
 397             && (req->vuid == (fsp)->vuid)) {
 398                 return True;
 399         }
 400
 401         reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 402         return False;
 403 }
 404
 405 /****************************************************************************
 406  Reply to a (netbios-level) special message.
 407 ****************************************************************************/
 408
 409 void reply_special(char *inbuf)
 410 {
 411         int msg_type = CVAL(inbuf,0);
 412         int msg_flags = CVAL(inbuf,1);
 413         fstring name1,name2;
 414         char name_type = 0;
 415
 416         /*
 417          * We only really use 4 bytes of the outbuf, but for the smb_setlen
 418          * calculation & friends (srv_send_smb uses that) we need the full smb
 419          * header.
 420          */
 421         char outbuf[smb_size];
 422
 423         *name1 = *name2 = 0;
 424
 425         memset(outbuf, '\0', sizeof(outbuf));
 426
 427         smb_setlen(outbuf,0);
 428
 429         switch (msg_type) {
 430         case 0x81: /* session request */
 431
 432                 if (already_got_session) {
 433                         exit_server_cleanly("multiple session request not permitted");
 434                 }
 435
 436                 SCVAL(outbuf,0,0x82);
 437                 SCVAL(outbuf,3,0);
 438                 if (name_len(inbuf+4) > 50 ||
 439                     name_len(inbuf+4 + name_len(inbuf + 4)) > 50) {
 440                         DEBUG(0,("Invalid name length in session request\n"));
 441                         return;
 442                 }
 443                 name_extract(inbuf,4,name1);
 444                 name_type = name_extract(inbuf,4 + name_len(inbuf + 4),name2);
 445                 DEBUG(2,("netbios connect: name1=%s name2=%s\n",
 446                          name1,name2));
 447
 448                 set_local_machine_name(name1, True);
 449                 set_remote_machine_name(name2, True);
 450
 451                 DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
 452                          get_local_machine_name(), get_remote_machine_name(),
 453                          name_type));
 454
 455                 if (name_type == 'R') {
 456                         /* We are being asked for a pathworks session ---
 457                            no thanks! */
 458                         SCVAL(outbuf, 0,0x83);
 459                         break;
 460                 }
 461
 462                 /* only add the client's machine name to the list
 463                    of possibly valid usernames if we are operating
 464                    in share mode security */
 465                 if (lp_security() == SEC_SHARE) {
 466                         add_session_user(get_remote_machine_name());
 467                 }
 468
 469                 reload_services(True);
 470                 reopen_logs();
 471
 472                 already_got_session = True;
 473                 break;
 474
 475         case 0x89: /* session keepalive request
 476                       (some old clients produce this?) */
 477                 SCVAL(outbuf,0,SMBkeepalive);
 478                 SCVAL(outbuf,3,0);
 479                 break;
 480
 481         case 0x82: /* positive session response */
 482         case 0x83: /* negative session response */
 483         case 0x84: /* retarget session response */
 484                 DEBUG(0,("Unexpected session response\n"));
 485                 break;
 486
 487         case SMBkeepalive: /* session keepalive */
 488         default:
 489                 return;
 490         }
 491
 492         DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
 493                     msg_type, msg_flags));
 494
 495         srv_send_smb(smbd_server_fd(), outbuf, false);
 496         return;
 497 }
 498
 499 /****************************************************************************
 500  Reply to a tcon.
 501  conn POINTER CAN BE NULL HERE !
 502 ****************************************************************************/
 503
 504 void reply_tcon(struct smb_request *req)
 505 {
 506         connection_struct *conn = req->conn;
 507         const char *service;
 508         char *service_buf = NULL;
 509         char *password = NULL;
 510         char *dev = NULL;
 511         int pwlen=0;
 512         NTSTATUS nt_status;
 513         const char *p;
 514         DATA_BLOB password_blob;
 515         TALLOC_CTX *ctx = talloc_tos();
 516
 517         START_PROFILE(SMBtcon);
 518
 519         if (req->buflen < 4) {
 520                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 521                 END_PROFILE(SMBtcon);
 522                 return;
 523         }
 524
 525         p = (const char *)req->buf + 1;
 526         p += srvstr_pull_req_talloc(ctx, req, &service_buf, p, STR_TERMINATE);
 527         p += 1;
 528         pwlen = srvstr_pull_req_talloc(ctx, req, &password, p, STR_TERMINATE);
 529         p += pwlen+1;
 530         p += srvstr_pull_req_talloc(ctx, req, &dev, p, STR_TERMINATE);
 531         p += 1;
 532
 533         if (service_buf == NULL || password == NULL || dev == NULL) {
 534                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 535                 END_PROFILE(SMBtcon);
 536                 return;
 537         }
 538         p = strrchr_m(service_buf,'\\');
 539         if (p) {
 540                 service = p+1;
 541         } else {
 542                 service = service_buf;
 543         }
 544
 545         password_blob = data_blob(password, pwlen+1);
 546
 547         conn = make_connection(service,password_blob,dev,req->vuid,&nt_status);
 548         req->conn = conn;
 549
 550         data_blob_clear_free(&password_blob);
 551
 552         if (!conn) {
 553                 reply_nterror(req, nt_status);
 554                 END_PROFILE(SMBtcon);
 555                 return;
 556         }
 557
 558         reply_outbuf(req, 2, 0);
 559         SSVAL(req->outbuf,smb_vwv0,max_recv);
 560         SSVAL(req->outbuf,smb_vwv1,conn->cnum);
 561         SSVAL(req->outbuf,smb_tid,conn->cnum);
 562
 563         DEBUG(3,("tcon service=%s cnum=%d\n",
 564                  service, conn->cnum));
 565
 566         END_PROFILE(SMBtcon);
 567         return;
 568 }
 569
 570 /****************************************************************************
 571  Reply to a tcon and X.
 572  conn POINTER CAN BE NULL HERE !
 573 ****************************************************************************/
 574
 575 void reply_tcon_and_X(struct smb_request *req)
 576 {
 577         connection_struct *conn = req->conn;
 578         const char *service = NULL;
 579         DATA_BLOB password;
 580         TALLOC_CTX *ctx = talloc_tos();
 581         /* what the cleint thinks the device is */
 582         char *client_devicetype = NULL;
 583         /* what the server tells the client the share represents */
 584         const char *server_devicetype;
 585         NTSTATUS nt_status;
 586         int passlen;
 587         char *path = NULL;
 588         const char *p, *q;
 589         uint16 tcon_flags;
 590
 591         START_PROFILE(SMBtconX);
 592
 593         if (req->wct < 4) {
 594                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 595                 END_PROFILE(SMBtconX);
 596                 return;
 597         }
 598
 599         passlen = SVAL(req->vwv+3, 0);
 600         tcon_flags = SVAL(req->vwv+2, 0);
 601
 602         /* we might have to close an old one */
 603         if ((tcon_flags & 0x1) && conn) {
 604                 close_cnum(conn,req->vuid);
 605                 req->conn = NULL;
 606                 conn = NULL;
 607         }
 608
 609         if ((passlen > MAX_PASS_LEN) || (passlen >= req->buflen)) {
 610                 reply_doserror(req, ERRDOS, ERRbuftoosmall);
 611                 END_PROFILE(SMBtconX);
 612                 return;
 613         }
 614
 615         if (global_encrypted_passwords_negotiated) {
 616                 password = data_blob_talloc(talloc_tos(), req->buf, passlen);
 617                 if (lp_security() == SEC_SHARE) {
 618                         /*
 619                          * Security = share always has a pad byte
 620                          * after the password.
 621                          */
 622                         p = (const char *)req->buf + passlen + 1;
 623                 } else {
 624                         p = (const char *)req->buf + passlen;
 625                 }
 626         } else {
 627                 password = data_blob_talloc(talloc_tos(), req->buf, passlen+1);
 628                 /* Ensure correct termination */
 629                 password.data[passlen]=0;
 630                 p = (const char *)req->buf + passlen + 1;
 631         }
 632
 633         p += srvstr_pull_req_talloc(ctx, req, &path, p, STR_TERMINATE);
 634
 635         if (path == NULL) {
 636                 data_blob_clear_free(&password);
 637                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 638                 END_PROFILE(SMBtconX);
 639                 return;
 640         }
 641
 642         /*
 643          * the service name can be either: \\server\share
 644          * or share directly like on the DELL PowerVault 705
 645          */
 646         if (*path=='\\') {
 647                 q = strchr_m(path+2,'\\');
 648                 if (!q) {
 649                         data_blob_clear_free(&password);
 650                         reply_doserror(req, ERRDOS, ERRnosuchshare);
 651                         END_PROFILE(SMBtconX);
 652                         return;
 653                 }
 654                 service = q+1;
 655         } else {
 656                 service = path;
 657         }
 658
 659         p += srvstr_pull_talloc(ctx, req->inbuf, req->flags2,
 660                                 &client_devicetype, p,
 661                                 MIN(6, smbreq_bufrem(req, p)), STR_ASCII);
 662
 663         if (client_devicetype == NULL) {
 664                 data_blob_clear_free(&password);
 665                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 666                 END_PROFILE(SMBtconX);
 667                 return;
 668         }
 669
 670         DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
 671
 672         conn = make_connection(service, password, client_devicetype,
 673                                req->vuid, &nt_status);
 674         req->conn =conn;
 675
 676         data_blob_clear_free(&password);
 677
 678         if (!conn) {
 679                 reply_nterror(req, nt_status);
 680                 END_PROFILE(SMBtconX);
 681                 return;
 682         }
 683
 684         if ( IS_IPC(conn) )
 685                 server_devicetype = "IPC";
 686         else if ( IS_PRINT(conn) )
 687                 server_devicetype = "LPT1:";
 688         else
 689                 server_devicetype = "A:";
 690
 691         if (Protocol < PROTOCOL_NT1) {
 692                 reply_outbuf(req, 2, 0);
 693                 if (message_push_string(&req->outbuf, server_devicetype,
 694                                         STR_TERMINATE|STR_ASCII) == -1) {
 695                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 696                         END_PROFILE(SMBtconX);
 697                         return;
 698                 }
 699         } else {
 700                 /* NT sets the fstype of IPC$ to the null string */
 701                 const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
 702
 703                 if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
 704                         /* Return permissions. */
 705                         uint32 perm1 = 0;
 706                         uint32 perm2 = 0;
 707
 708                         reply_outbuf(req, 7, 0);
 709
 710                         if (IS_IPC(conn)) {
 711                                 perm1 = FILE_ALL_ACCESS;
 712                                 perm2 = FILE_ALL_ACCESS;
 713                         } else {
 714                                 perm1 = CAN_WRITE(conn) ?
 715                                                 SHARE_ALL_ACCESS :
 716                                                 SHARE_READ_ONLY;
 717                         }
 718
 719                         SIVAL(req->outbuf, smb_vwv3, perm1);
 720                         SIVAL(req->outbuf, smb_vwv5, perm2);
 721                 } else {
 722                         reply_outbuf(req, 3, 0);
 723                 }
 724
 725                 if ((message_push_string(&req->outbuf, server_devicetype,
 726                                          STR_TERMINATE|STR_ASCII) == -1)
 727                     || (message_push_string(&req->outbuf, fstype,
 728                                             STR_TERMINATE) == -1)) {
 729                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 730                         END_PROFILE(SMBtconX);
 731                         return;
 732                 }
 733
 734                 /* what does setting this bit do? It is set by NT4 and
 735                    may affect the ability to autorun mounted cdroms */
 736                 SSVAL(req->outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS|
 737                       (lp_csc_policy(SNUM(conn)) << 2));
 738
 739                 if (lp_msdfs_root(SNUM(conn)) && lp_host_msdfs()) {
 740                         DEBUG(2,("Serving %s as a Dfs root\n",
 741                                  lp_servicename(SNUM(conn)) ));
 742                         SSVAL(req->outbuf, smb_vwv2,
 743                               SMB_SHARE_IN_DFS | SVAL(req->outbuf, smb_vwv2));
 744                 }
 745         }
 746
 747
 748         DEBUG(3,("tconX service=%s \n",
 749                  service));
 750
 751         /* set the incoming and outgoing tid to the just created one */
 752         SSVAL(req->inbuf,smb_tid,conn->cnum);
 753         SSVAL(req->outbuf,smb_tid,conn->cnum);
 754
 755         END_PROFILE(SMBtconX);
 756
 757         chain_reply(req);
 758         return;
 759 }
 760
 761 /****************************************************************************
 762  Reply to an unknown type.
 763 ****************************************************************************/
 764
 765 void reply_unknown_new(struct smb_request *req, uint8 type)
 766 {
 767         DEBUG(0, ("unknown command type (%s): type=%d (0x%X)\n",
 768                   smb_fn_name(type), type, type));
 769         reply_doserror(req, ERRSRV, ERRunknownsmb);
 770         return;
 771 }
 772
 773 /****************************************************************************
 774  Reply to an ioctl.
 775  conn POINTER CAN BE NULL HERE !
 776 ****************************************************************************/
 777
 778 void reply_ioctl(struct smb_request *req)
 779 {
 780         connection_struct *conn = req->conn;
 781         uint16 device;
 782         uint16 function;
 783         uint32 ioctl_code;
 784         int replysize;
 785         char *p;
 786
 787         START_PROFILE(SMBioctl);
 788
 789         if (req->wct < 3) {
 790                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 791                 END_PROFILE(SMBioctl);
 792                 return;
 793         }
 794
 795         device     = SVAL(req->vwv+1, 0);
 796         function   = SVAL(req->vwv+2, 0);
 797         ioctl_code = (device << 16) + function;
 798
 799         DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
 800
 801         switch (ioctl_code) {
 802             case IOCTL_QUERY_JOB_INFO:
 803                     replysize = 32;
 804                     break;
 805             default:
 806                     reply_doserror(req, ERRSRV, ERRnosupport);
 807                     END_PROFILE(SMBioctl);
 808                     return;
 809         }
 810
 811         reply_outbuf(req, 8, replysize+1);
 812         SSVAL(req->outbuf,smb_vwv1,replysize); /* Total data bytes returned */
 813         SSVAL(req->outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
 814         SSVAL(req->outbuf,smb_vwv6,52);        /* Offset to data */
 815         p = smb_buf(req->outbuf);
 816         memset(p, '\0', replysize+1); /* valgrind-safe. */
 817         p += 1;          /* Allow for alignment */
 818
 819         switch (ioctl_code) {
 820                 case IOCTL_QUERY_JOB_INFO:
 821                 {
 822                         files_struct *fsp = file_fsp(
 823                                 req, SVAL(req->vwv+0, 0));
 824                         if (!fsp) {
 825                                 reply_doserror(req, ERRDOS, ERRbadfid);
 826                                 END_PROFILE(SMBioctl);
 827                                 return;
 828                         }
 829                         SSVAL(p,0,fsp->rap_print_jobid);             /* Job number */
 830                         srvstr_push((char *)req->outbuf, req->flags2, p+2,
 831                                     global_myname(), 15,
 832                                     STR_TERMINATE|STR_ASCII);
 833                         if (conn) {
 834                                 srvstr_push((char *)req->outbuf, req->flags2,
 835                                             p+18, lp_servicename(SNUM(conn)),
 836                                             13, STR_TERMINATE|STR_ASCII);
 837                         } else {
 838                                 memset(p+18, 0, 13);
 839                         }
 840                         break;
 841                 }
 842         }
 843
 844         END_PROFILE(SMBioctl);
 845         return;
 846 }
 847
 848 /****************************************************************************
 849  Strange checkpath NTSTATUS mapping.
 850 ****************************************************************************/
 851
 852 static NTSTATUS map_checkpath_error(uint16_t flags2, NTSTATUS status)
 853 {
 854         /* Strange DOS error code semantics only for checkpath... */
 855         if (!(flags2 & FLAGS2_32_BIT_ERROR_CODES)) {
 856                 if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
 857                         /* We need to map to ERRbadpath */
 858                         return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 859                 }
 860         }
 861         return status;
 862 }
 863
 864 /****************************************************************************
 865  Reply to a checkpath.
 866 ****************************************************************************/
 867
 868 void reply_checkpath(struct smb_request *req)
 869 {
 870         connection_struct *conn = req->conn;
 871         char *name = NULL;
 872         SMB_STRUCT_STAT sbuf;
 873         NTSTATUS status;
 874         TALLOC_CTX *ctx = talloc_tos();
 875
 876         START_PROFILE(SMBcheckpath);
 877
 878         srvstr_get_path_req(ctx, req, &name, (const char *)req->buf + 1,
 879                             STR_TERMINATE, &status);
 880
 881         if (!NT_STATUS_IS_OK(status)) {
 882                 status = map_checkpath_error(req->flags2, status);
 883                 reply_nterror(req, status);
 884                 END_PROFILE(SMBcheckpath);
 885                 return;
 886         }
 887
 888         status = resolve_dfspath(ctx, conn,
 889                         req->flags2 & FLAGS2_DFS_PATHNAMES,
 890                         name,
 891                         &name);
 892         if (!NT_STATUS_IS_OK(status)) {
 893                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 894                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 895                                         ERRSRV, ERRbadpath);
 896                         END_PROFILE(SMBcheckpath);
 897                         return;
 898                 }
 899                 goto path_err;
 900         }
 901
 902         DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(req->vwv+0, 0)));
 903
 904         status = unix_convert(ctx, conn, name, False, &name, NULL, &sbuf);
 905         if (!NT_STATUS_IS_OK(status)) {
 906                 goto path_err;
 907         }
 908
 909         status = check_name(conn, name);
 910         if (!NT_STATUS_IS_OK(status)) {
 911                 DEBUG(3,("reply_checkpath: check_name of %s failed (%s)\n",name,nt_errstr(status)));
 912                 goto path_err;
 913         }
 914
 915         if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,name,&sbuf) != 0)) {
 916                 DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",name,strerror(errno)));
 917                 status = map_nt_error_from_unix(errno);
 918                 goto path_err;
 919         }
 920
 921         if (!S_ISDIR(sbuf.st_mode)) {
 922                 reply_botherror(req, NT_STATUS_NOT_A_DIRECTORY,
 923                                 ERRDOS, ERRbadpath);
 924                 END_PROFILE(SMBcheckpath);
 925                 return;
 926         }
 927
 928         reply_outbuf(req, 0, 0);
 929
 930         END_PROFILE(SMBcheckpath);
 931         return;
 932
 933   path_err:
 934
 935         END_PROFILE(SMBcheckpath);
 936
 937         /* We special case this - as when a Windows machine
 938                 is parsing a path is steps through the components
 939                 one at a time - if a component fails it expects
 940                 ERRbadpath, not ERRbadfile.
 941         */
 942         status = map_checkpath_error(req->flags2, status);
 943         if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 944                 /*
 945                  * Windows returns different error codes if
 946                  * the parent directory is valid but not the
 947                  * last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
 948                  * for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
 949                  * if the path is invalid.
 950                  */
 951                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 952                                 ERRDOS, ERRbadpath);
 953                 return;
 954         }
 955
 956         reply_nterror(req, status);
 957 }
 958
 959 /****************************************************************************
 960  Reply to a getatr.
 961 ****************************************************************************/
 962
 963 void reply_getatr(struct smb_request *req)
 964 {
 965         connection_struct *conn = req->conn;
 966         char *fname = NULL;
 967         SMB_STRUCT_STAT sbuf;
 968         int mode=0;
 969         SMB_OFF_T size=0;
 970         time_t mtime=0;
 971         const char *p;
 972         NTSTATUS status;
 973         TALLOC_CTX *ctx = talloc_tos();
 974
 975         START_PROFILE(SMBgetatr);
 976
 977         p = (const char *)req->buf + 1;
 978         p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
 979         if (!NT_STATUS_IS_OK(status)) {
 980                 reply_nterror(req, status);
 981                 END_PROFILE(SMBgetatr);
 982                 return;
 983         }
 984
 985         status = resolve_dfspath(ctx, conn,
 986                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 987                                 fname,
 988                                 &fname);
 989         if (!NT_STATUS_IS_OK(status)) {
 990                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 991                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 992                                         ERRSRV, ERRbadpath);
 993                         END_PROFILE(SMBgetatr);
 994                         return;
 995                 }
 996                 reply_nterror(req, status);
 997                 END_PROFILE(SMBgetatr);
 998                 return;
 999         }
1000
1001         /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
1002                 under WfWg - weird! */
1003         if (*fname == '\0') {
1004                 mode = aHIDDEN | aDIR;
1005                 if (!CAN_WRITE(conn)) {
1006                         mode |= aRONLY;
1007                 }
1008                 size = 0;
1009                 mtime = 0;
1010         } else {
1011                 status = unix_convert(ctx, conn, fname, False, &fname, NULL,&sbuf);
1012                 if (!NT_STATUS_IS_OK(status)) {
1013                         reply_nterror(req, status);
1014                         END_PROFILE(SMBgetatr);
1015                         return;
1016                 }
1017                 status = check_name(conn, fname);
1018                 if (!NT_STATUS_IS_OK(status)) {
1019                         DEBUG(3,("reply_getatr: check_name of %s failed (%s)\n",fname,nt_errstr(status)));
1020                         reply_nterror(req, status);
1021                         END_PROFILE(SMBgetatr);
1022                         return;
1023                 }
1024                 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,fname,&sbuf) != 0)) {
1025                         DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",fname,strerror(errno)));
1026                         reply_unixerror(req, ERRDOS,ERRbadfile);
1027                         END_PROFILE(SMBgetatr);
1028                         return;
1029                 }
1030
1031                 mode = dos_mode(conn,fname,&sbuf);
1032                 size = sbuf.st_size;
1033                 mtime = sbuf.st_mtime;
1034                 if (mode & aDIR) {
1035                         size = 0;
1036                 }
1037         }
1038
1039         reply_outbuf(req, 10, 0);
1040
1041         SSVAL(req->outbuf,smb_vwv0,mode);
1042         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1043                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime & ~1);
1044         } else {
1045                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime);
1046         }
1047         SIVAL(req->outbuf,smb_vwv3,(uint32)size);
1048
1049         if (Protocol >= PROTOCOL_NT1) {
1050                 SSVAL(req->outbuf, smb_flg2,
1051                       SVAL(req->outbuf, smb_flg2) | FLAGS2_IS_LONG_NAME);
1052         }
1053
1054         DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n", fname, mode, (unsigned int)size ) );
1055
1056         END_PROFILE(SMBgetatr);
1057         return;
1058 }
1059
1060 /****************************************************************************
1061  Reply to a setatr.
1062 ****************************************************************************/
1063
1064 void reply_setatr(struct smb_request *req)
1065 {
1066         struct smb_file_time ft;
1067         connection_struct *conn = req->conn;
1068         char *fname = NULL;
1069         int mode;
1070         time_t mtime;
1071         SMB_STRUCT_STAT sbuf;
1072         const char *p;
1073         NTSTATUS status;
1074         TALLOC_CTX *ctx = talloc_tos();
1075
1076         START_PROFILE(SMBsetatr);
1077
1078         ZERO_STRUCT(ft);
1079
1080         if (req->wct < 2) {
1081                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1082                 return;
1083         }
1084
1085         p = (const char *)req->buf + 1;
1086         p += srvstr_get_path_req(ctx, req, &fname, p, STR_TERMINATE, &status);
1087         if (!NT_STATUS_IS_OK(status)) {
1088                 reply_nterror(req, status);
1089                 END_PROFILE(SMBsetatr);
1090                 return;
1091         }
1092
1093         status = resolve_dfspath(ctx, conn,
1094                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1095                                 fname,
1096                                 &fname);
1097         if (!NT_STATUS_IS_OK(status)) {
1098                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1099                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1100                                         ERRSRV, ERRbadpath);
1101                         END_PROFILE(SMBsetatr);
1102                         return;
1103                 }
1104                 reply_nterror(req, status);
1105                 END_PROFILE(SMBsetatr);
1106                 return;
1107         }
1108
1109         status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf);
1110         if (!NT_STATUS_IS_OK(status)) {
1111                 reply_nterror(req, status);
1112                 END_PROFILE(SMBsetatr);
1113                 return;
1114         }
1115
1116         status = check_name(conn, fname);
1117         if (!NT_STATUS_IS_OK(status)) {
1118                 reply_nterror(req, status);
1119                 END_PROFILE(SMBsetatr);
1120                 return;
1121         }
1122
1123         if (fname[0] == '.' && fname[1] == '\0') {
1124                 /*
1125                  * Not sure here is the right place to catch this
1126                  * condition. Might be moved to somewhere else later -- vl
1127                  */
1128                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1129                 END_PROFILE(SMBsetatr);
1130                 return;
1131         }
1132
1133         mode = SVAL(req->vwv+0, 0);
1134         mtime = srv_make_unix_date3(req->vwv+1);
1135
1136         ft.mtime = convert_time_t_to_timespec(mtime);
1137         status = smb_set_file_time(conn, NULL, fname,
1138                                    &sbuf, &ft, true);
1139         if (!NT_STATUS_IS_OK(status)) {
1140                 reply_unixerror(req, ERRDOS, ERRnoaccess);
1141                 END_PROFILE(SMBsetatr);
1142                 return;
1143         }
1144
1145         if (mode != FILE_ATTRIBUTE_NORMAL) {
1146                 if (VALID_STAT_OF_DIR(sbuf))
1147                         mode |= aDIR;
1148                 else
1149                         mode &= ~aDIR;
1150
1151                 if (file_set_dosmode(conn,fname,mode,&sbuf,NULL,false) != 0) {
1152                         reply_unixerror(req, ERRDOS, ERRnoaccess);
1153                         END_PROFILE(SMBsetatr);
1154                         return;
1155                 }
1156         }
1157
1158         reply_outbuf(req, 0, 0);
1159
1160         DEBUG( 3, ( "setatr name=%s mode=%d\n", fname, mode ) );
1161
1162         END_PROFILE(SMBsetatr);
1163         return;
1164 }
1165
1166 /****************************************************************************
1167  Reply to a dskattr.
1168 ****************************************************************************/
1169
1170 void reply_dskattr(struct smb_request *req)
1171 {
1172         connection_struct *conn = req->conn;
1173         uint64_t dfree,dsize,bsize;
1174         START_PROFILE(SMBdskattr);
1175
1176         if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (uint64_t)-1) {
1177                 reply_unixerror(req, ERRHRD, ERRgeneral);
1178                 END_PROFILE(SMBdskattr);
1179                 return;
1180         }
1181
1182         reply_outbuf(req, 5, 0);
1183
1184         if (Protocol <= PROTOCOL_LANMAN2) {
1185                 double total_space, free_space;
1186                 /* we need to scale this to a number that DOS6 can handle. We
1187                    use floating point so we can handle large drives on systems
1188                    that don't have 64 bit integers
1189
1190                    we end up displaying a maximum of 2G to DOS systems
1191                 */
1192                 total_space = dsize * (double)bsize;
1193                 free_space = dfree * (double)bsize;
1194
1195                 dsize = (uint64_t)((total_space+63*512) / (64*512));
1196                 dfree = (uint64_t)((free_space+63*512) / (64*512));
1197
1198                 if (dsize > 0xFFFF) dsize = 0xFFFF;
1199                 if (dfree > 0xFFFF) dfree = 0xFFFF;
1200
1201                 SSVAL(req->outbuf,smb_vwv0,dsize);
1202                 SSVAL(req->outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
1203                 SSVAL(req->outbuf,smb_vwv2,512); /* and this must be 512 */
1204                 SSVAL(req->outbuf,smb_vwv3,dfree);
1205         } else {
1206                 SSVAL(req->outbuf,smb_vwv0,dsize);
1207                 SSVAL(req->outbuf,smb_vwv1,bsize/512);
1208                 SSVAL(req->outbuf,smb_vwv2,512);
1209                 SSVAL(req->outbuf,smb_vwv3,dfree);
1210         }
1211
1212         DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
1213
1214         END_PROFILE(SMBdskattr);
1215         return;
1216 }
1217
1218 /****************************************************************************
1219  Reply to a search.
1220  Can be called from SMBsearch, SMBffirst or SMBfunique.
1221 ****************************************************************************/
1222
1223 void reply_search(struct smb_request *req)
1224 {
1225         connection_struct *conn = req->conn;
1226         const char *mask = NULL;
1227         char *directory = NULL;
1228         char *fname = NULL;
1229         SMB_OFF_T size;
1230         uint32 mode;
1231         time_t date;
1232         uint32 dirtype;
1233         unsigned int numentries = 0;
1234         unsigned int maxentries = 0;
1235         bool finished = False;
1236         const char *p;
1237         int status_len;
1238         char *path = NULL;
1239         char status[21];
1240         int dptr_num= -1;
1241         bool check_descend = False;
1242         bool expect_close = False;
1243         NTSTATUS nt_status;
1244         bool mask_contains_wcard = False;
1245         bool allow_long_path_components = (req->flags2 & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
1246         TALLOC_CTX *ctx = talloc_tos();
1247         bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1248
1249         START_PROFILE(SMBsearch);
1250
1251         if (req->wct < 2) {
1252                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1253                 END_PROFILE(SMBsearch);
1254                 return;
1255         }
1256
1257         if (lp_posix_pathnames()) {
1258                 reply_unknown_new(req, req->cmd);
1259                 END_PROFILE(SMBsearch);
1260                 return;
1261         }
1262
1263         /* If we were called as SMBffirst then we must expect close. */
1264         if(req->cmd == SMBffirst) {
1265                 expect_close = True;
1266         }
1267
1268         reply_outbuf(req, 1, 3);
1269         maxentries = SVAL(req->vwv+0, 0);
1270         dirtype = SVAL(req->vwv+1, 0);
1271         p = (const char *)req->buf + 1;
1272         p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1273                                        &nt_status, &mask_contains_wcard);
1274         if (!NT_STATUS_IS_OK(nt_status)) {
1275                 reply_nterror(req, nt_status);
1276                 END_PROFILE(SMBsearch);
1277                 return;
1278         }
1279
1280         nt_status = resolve_dfspath_wcard(ctx, conn,
1281                                           req->flags2 & FLAGS2_DFS_PATHNAMES,
1282                                           path,
1283                                           &path,
1284                                           &mask_contains_wcard);
1285         if (!NT_STATUS_IS_OK(nt_status)) {
1286                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1287                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1288                                         ERRSRV, ERRbadpath);
1289                         END_PROFILE(SMBsearch);
1290                         return;
1291                 }
1292                 reply_nterror(req, nt_status);
1293                 END_PROFILE(SMBsearch);
1294                 return;
1295         }
1296
1297         p++;
1298         status_len = SVAL(p, 0);
1299         p += 2;
1300
1301         /* dirtype &= ~aDIR; */
1302
1303         if (status_len == 0) {
1304                 SMB_STRUCT_STAT sbuf;
1305
1306                 nt_status = unix_convert(ctx, conn, path, True,
1307                                 &directory, NULL, &sbuf);
1308                 if (!NT_STATUS_IS_OK(nt_status)) {
1309                         reply_nterror(req, nt_status);
1310                         END_PROFILE(SMBsearch);
1311                         return;
1312                 }
1313
1314                 nt_status = check_name(conn, directory);
1315                 if (!NT_STATUS_IS_OK(nt_status)) {
1316                         reply_nterror(req, nt_status);
1317                         END_PROFILE(SMBsearch);
1318                         return;
1319                 }
1320
1321                 p = strrchr_m(directory,'/');
1322                 if ((p != NULL) && (*directory != '/')) {
1323                         mask = p + 1;
1324                         directory = talloc_strndup(ctx, directory,
1325                                                    PTR_DIFF(p, directory));
1326                 } else {
1327                         mask = directory;
1328                         directory = talloc_strdup(ctx,".");
1329                 }
1330
1331                 if (!directory) {
1332                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1333                         END_PROFILE(SMBsearch);
1334                         return;
1335                 }
1336
1337                 memset((char *)status,'\0',21);
1338                 SCVAL(status,0,(dirtype & 0x1F));
1339
1340                 nt_status = dptr_create(conn,
1341                                         directory,
1342                                         True,
1343                                         expect_close,
1344                                         req->smbpid,
1345                                         mask,
1346                                         mask_contains_wcard,
1347                                         dirtype,
1348                                         &conn->dirptr);
1349                 if (!NT_STATUS_IS_OK(nt_status)) {
1350                         reply_nterror(req, nt_status);
1351                         END_PROFILE(SMBsearch);
1352                         return;
1353                 }
1354                 dptr_num = dptr_dnum(conn->dirptr);
1355         } else {
1356                 int status_dirtype;
1357
1358                 memcpy(status,p,21);
1359                 status_dirtype = CVAL(status,0) & 0x1F;
1360                 if (status_dirtype != (dirtype & 0x1F)) {
1361                         dirtype = status_dirtype;
1362                 }
1363
1364                 conn->dirptr = dptr_fetch(status+12,&dptr_num);
1365                 if (!conn->dirptr) {
1366                         goto SearchEmpty;
1367                 }
1368                 string_set(&conn->dirpath,dptr_path(dptr_num));
1369                 mask = dptr_wcard(dptr_num);
1370                 if (!mask) {
1371                         goto SearchEmpty;
1372                 }
1373                 /*
1374                  * For a 'continue' search we have no string. So
1375                  * check from the initial saved string.
1376                  */
1377                 mask_contains_wcard = ms_has_wild(mask);
1378                 dirtype = dptr_attr(dptr_num);
1379         }
1380
1381         DEBUG(4,("dptr_num is %d\n",dptr_num));
1382
1383         if ((dirtype&0x1F) == aVOLID) {
1384                 char buf[DIR_STRUCT_SIZE];
1385                 memcpy(buf,status,21);
1386                 if (!make_dir_struct(ctx,buf,"???????????",volume_label(SNUM(conn)),
1387                                 0,aVOLID,0,!allow_long_path_components)) {
1388                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1389                         END_PROFILE(SMBsearch);
1390                         return;
1391                 }
1392                 dptr_fill(buf+12,dptr_num);
1393                 if (dptr_zero(buf+12) && (status_len==0)) {
1394                         numentries = 1;
1395                 } else {
1396                         numentries = 0;
1397                 }
1398                 if (message_push_blob(&req->outbuf,
1399                                       data_blob_const(buf, sizeof(buf)))
1400                     == -1) {
1401                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1402                         END_PROFILE(SMBsearch);
1403                         return;
1404                 }
1405         } else {
1406                 unsigned int i;
1407                 maxentries = MIN(
1408                         maxentries,
1409                         ((BUFFER_SIZE -
1410                           ((uint8 *)smb_buf(req->outbuf) + 3 - req->outbuf))
1411                          /DIR_STRUCT_SIZE));
1412
1413                 DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1414                         conn->dirpath,lp_dontdescend(SNUM(conn))));
1415                 if (in_list(conn->dirpath, lp_dontdescend(SNUM(conn)),True)) {
1416                         check_descend = True;
1417                 }
1418
1419                 for (i=numentries;(i<maxentries) && !finished;i++) {
1420                         finished = !get_dir_entry(ctx,
1421                                                   conn,
1422                                                   mask,
1423                                                   dirtype,
1424                                                   &fname,
1425                                                   &size,
1426                                                   &mode,
1427                                                   &date,
1428                                                   check_descend,
1429                                                   ask_sharemode);
1430                         if (!finished) {
1431                                 char buf[DIR_STRUCT_SIZE];
1432                                 memcpy(buf,status,21);
1433                                 if (!make_dir_struct(ctx,
1434                                                 buf,
1435                                                 mask,
1436                                                 fname,
1437                                                 size,
1438                                                 mode,
1439                                                 date,
1440                                                 !allow_long_path_components)) {
1441                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1442                                         END_PROFILE(SMBsearch);
1443                                         return;
1444                                 }
1445                                 if (!dptr_fill(buf+12,dptr_num)) {
1446                                         break;
1447                                 }
1448                                 if (message_push_blob(&req->outbuf,
1449                                                       data_blob_const(buf, sizeof(buf)))
1450                                     == -1) {
1451                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1452                                         END_PROFILE(SMBsearch);
1453                                         return;
1454                                 }
1455                                 numentries++;
1456                         }
1457                 }
1458         }
1459
1460   SearchEmpty:
1461
1462         /* If we were called as SMBffirst with smb_search_id == NULL
1463                 and no entries were found then return error and close dirptr
1464                 (X/Open spec) */
1465
1466         if (numentries == 0) {
1467                 dptr_close(&dptr_num);
1468         } else if(expect_close && status_len == 0) {
1469                 /* Close the dptr - we know it's gone */
1470                 dptr_close(&dptr_num);
1471         }
1472
1473         /* If we were called as SMBfunique, then we can close the dirptr now ! */
1474         if(dptr_num >= 0 && req->cmd == SMBfunique) {
1475                 dptr_close(&dptr_num);
1476         }
1477
1478         if ((numentries == 0) && !mask_contains_wcard) {
1479                 reply_botherror(req, STATUS_NO_MORE_FILES, ERRDOS, ERRnofiles);
1480                 END_PROFILE(SMBsearch);
1481                 return;
1482         }
1483
1484         SSVAL(req->outbuf,smb_vwv0,numentries);
1485         SSVAL(req->outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1486         SCVAL(smb_buf(req->outbuf),0,5);
1487         SSVAL(smb_buf(req->outbuf),1,numentries*DIR_STRUCT_SIZE);
1488
1489         /* The replies here are never long name. */
1490         SSVAL(req->outbuf, smb_flg2,
1491               SVAL(req->outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1492         if (!allow_long_path_components) {
1493                 SSVAL(req->outbuf, smb_flg2,
1494                       SVAL(req->outbuf, smb_flg2)
1495                       & (~FLAGS2_LONG_PATH_COMPONENTS));
1496         }
1497
1498         /* This SMB *always* returns ASCII names. Remove the unicode bit in flags2. */
1499         SSVAL(req->outbuf, smb_flg2,
1500               (SVAL(req->outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1501
1502         if (!directory) {
1503                 directory = dptr_path(dptr_num);
1504         }
1505
1506         DEBUG(4,("%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1507                 smb_fn_name(req->cmd),
1508                 mask,
1509                 directory ? directory : "./",
1510                 dirtype,
1511                 numentries,
1512                 maxentries ));
1513
1514         END_PROFILE(SMBsearch);
1515         return;
1516 }
1517
1518 /****************************************************************************
1519  Reply to a fclose (stop directory search).
1520 ****************************************************************************/
1521
1522 void reply_fclose(struct smb_request *req)
1523 {
1524         int status_len;
1525         char status[21];
1526         int dptr_num= -2;
1527         const char *p;
1528         char *path = NULL;
1529         NTSTATUS err;
1530         bool path_contains_wcard = False;
1531         TALLOC_CTX *ctx = talloc_tos();
1532
1533         START_PROFILE(SMBfclose);
1534
1535         if (lp_posix_pathnames()) {
1536                 reply_unknown_new(req, req->cmd);
1537                 END_PROFILE(SMBfclose);
1538                 return;
1539         }
1540
1541         p = (const char *)req->buf + 1;
1542         p += srvstr_get_path_req_wcard(ctx, req, &path, p, STR_TERMINATE,
1543                                        &err, &path_contains_wcard);
1544         if (!NT_STATUS_IS_OK(err)) {
1545                 reply_nterror(req, err);
1546                 END_PROFILE(SMBfclose);
1547                 return;
1548         }
1549         p++;
1550         status_len = SVAL(p,0);
1551         p += 2;
1552
1553         if (status_len == 0) {
1554                 reply_doserror(req, ERRSRV, ERRsrverror);
1555                 END_PROFILE(SMBfclose);
1556                 return;
1557         }
1558
1559         memcpy(status,p,21);
1560
1561         if(dptr_fetch(status+12,&dptr_num)) {
1562                 /*  Close the dptr - we know it's gone */
1563                 dptr_close(&dptr_num);
1564         }
1565
1566         reply_outbuf(req, 1, 0);
1567         SSVAL(req->outbuf,smb_vwv0,0);
1568
1569         DEBUG(3,("search close\n"));
1570
1571         END_PROFILE(SMBfclose);
1572         return;
1573 }
1574
1575 /****************************************************************************
1576  Reply to an open.
1577 ****************************************************************************/
1578
1579 void reply_open(struct smb_request *req)
1580 {
1581         connection_struct *conn = req->conn;
1582         char *fname = NULL;
1583         uint32 fattr=0;
1584         SMB_OFF_T size = 0;
1585         time_t mtime=0;
1586         int info;
1587         SMB_STRUCT_STAT sbuf;
1588         files_struct *fsp;
1589         int oplock_request;
1590         int deny_mode;
1591         uint32 dos_attr;
1592         uint32 access_mask;
1593         uint32 share_mode;
1594         uint32 create_disposition;
1595         uint32 create_options = 0;
1596         NTSTATUS status;
1597         TALLOC_CTX *ctx = talloc_tos();
1598
1599         START_PROFILE(SMBopen);
1600
1601         if (req->wct < 2) {
1602                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1603                 END_PROFILE(SMBopen);
1604                 return;
1605         }
1606
1607         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1608         deny_mode = SVAL(req->vwv+0, 0);
1609         dos_attr = SVAL(req->vwv+1, 0);
1610
1611         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
1612                             STR_TERMINATE, &status);
1613         if (!NT_STATUS_IS_OK(status)) {
1614                 reply_nterror(req, status);
1615                 END_PROFILE(SMBopen);
1616                 return;
1617         }
1618
1619         if (!map_open_params_to_ntcreate(
1620                     fname, deny_mode, OPENX_FILE_EXISTS_OPEN, &access_mask,
1621                     &share_mode, &create_disposition, &create_options)) {
1622                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1623                 END_PROFILE(SMBopen);
1624                 return;
1625         }
1626
1627         status = SMB_VFS_CREATE_FILE(
1628                 conn,                                   /* conn */
1629                 req,                                    /* req */
1630                 0,                                      /* root_dir_fid */
1631                 fname,                                  /* fname */
1632                 CFF_DOS_PATH,                           /* create_file_flags */
1633                 access_mask,                            /* access_mask */
1634                 share_mode,                             /* share_access */
1635                 create_disposition,                     /* create_disposition*/
1636                 create_options,                         /* create_options */
1637                 dos_attr,                               /* file_attributes */
1638                 oplock_request,                         /* oplock_request */
1639                 0,                                      /* allocation_size */
1640                 NULL,                                   /* sd */
1641                 NULL,                                   /* ea_list */
1642                 &fsp,                                   /* result */
1643                 &info,                                  /* pinfo */
1644                 &sbuf);                                 /* psbuf */
1645
1646         if (!NT_STATUS_IS_OK(status)) {
1647                 if (open_was_deferred(req->mid)) {
1648                         /* We have re-scheduled this call. */
1649                         END_PROFILE(SMBopen);
1650                         return;
1651                 }
1652                 reply_openerror(req, status);
1653                 END_PROFILE(SMBopen);
1654                 return;
1655         }
1656
1657         size = sbuf.st_size;
1658         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1659         mtime = sbuf.st_mtime;
1660
1661         if (fattr & aDIR) {
1662                 DEBUG(3,("attempt to open a directory %s\n",fsp->fsp_name));
1663                 close_file(req, fsp, ERROR_CLOSE);
1664                 reply_doserror(req, ERRDOS,ERRnoaccess);
1665                 END_PROFILE(SMBopen);
1666                 return;
1667         }
1668
1669         reply_outbuf(req, 7, 0);
1670         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1671         SSVAL(req->outbuf,smb_vwv1,fattr);
1672         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1673                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime & ~1);
1674         } else {
1675                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime);
1676         }
1677         SIVAL(req->outbuf,smb_vwv4,(uint32)size);
1678         SSVAL(req->outbuf,smb_vwv6,deny_mode);
1679
1680         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1681                 SCVAL(req->outbuf,smb_flg,
1682                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1683         }
1684
1685         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1686                 SCVAL(req->outbuf,smb_flg,
1687                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1688         }
1689         END_PROFILE(SMBopen);
1690         return;
1691 }
1692
1693 /****************************************************************************
1694  Reply to an open and X.
1695 ****************************************************************************/
1696
1697 void reply_open_and_X(struct smb_request *req)
1698 {
1699         connection_struct *conn = req->conn;
1700         char *fname = NULL;
1701         uint16 open_flags;
1702         int deny_mode;
1703         uint32 smb_attr;
1704         /* Breakout the oplock request bits so we can set the
1705                 reply bits separately. */
1706         int ex_oplock_request;
1707         int core_oplock_request;
1708         int oplock_request;
1709 #if 0
1710         int smb_sattr = SVAL(req->vwv+4, 0);
1711         uint32 smb_time = make_unix_date3(req->vwv+6);
1712 #endif
1713         int smb_ofun;
1714         uint32 fattr=0;
1715         int mtime=0;
1716         SMB_STRUCT_STAT sbuf;
1717         int smb_action = 0;
1718         files_struct *fsp;
1719         NTSTATUS status;
1720         uint64_t allocation_size;
1721         ssize_t retval = -1;
1722         uint32 access_mask;
1723         uint32 share_mode;
1724         uint32 create_disposition;
1725         uint32 create_options = 0;
1726         TALLOC_CTX *ctx = talloc_tos();
1727
1728         START_PROFILE(SMBopenX);
1729
1730         if (req->wct < 15) {
1731                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1732                 END_PROFILE(SMBopenX);
1733                 return;
1734         }
1735
1736         open_flags = SVAL(req->vwv+2, 0);
1737         deny_mode = SVAL(req->vwv+3, 0);
1738         smb_attr = SVAL(req->vwv+5, 0);
1739         ex_oplock_request = EXTENDED_OPLOCK_REQUEST(req->inbuf);
1740         core_oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1741         oplock_request = ex_oplock_request | core_oplock_request;
1742         smb_ofun = SVAL(req->vwv+8, 0);
1743         allocation_size = (uint64_t)IVAL(req->vwv+9, 0);
1744
1745         /* If it's an IPC, pass off the pipe handler. */
1746         if (IS_IPC(conn)) {
1747                 if (lp_nt_pipe_support()) {
1748                         reply_open_pipe_and_X(conn, req);
1749                 } else {
1750                         reply_doserror(req, ERRSRV, ERRaccess);
1751                 }
1752                 END_PROFILE(SMBopenX);
1753                 return;
1754         }
1755
1756         /* XXXX we need to handle passed times, sattr and flags */
1757         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
1758                         STR_TERMINATE, &status);
1759         if (!NT_STATUS_IS_OK(status)) {
1760                 reply_nterror(req, status);
1761                 END_PROFILE(SMBopenX);
1762                 return;
1763         }
1764
1765         if (!map_open_params_to_ntcreate(
1766                     fname, deny_mode, smb_ofun, &access_mask,
1767                     &share_mode, &create_disposition, &create_options)) {
1768                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1769                 END_PROFILE(SMBopenX);
1770                 return;
1771         }
1772
1773         status = SMB_VFS_CREATE_FILE(
1774                 conn,                                   /* conn */
1775                 req,                                    /* req */
1776                 0,                                      /* root_dir_fid */
1777                 fname,                                  /* fname */
1778                 CFF_DOS_PATH,                           /* create_file_flags */
1779                 access_mask,                            /* access_mask */
1780                 share_mode,                             /* share_access */
1781                 create_disposition,                     /* create_disposition*/
1782                 create_options,                         /* create_options */
1783                 smb_attr,                               /* file_attributes */
1784                 oplock_request,                         /* oplock_request */
1785                 0,                                      /* allocation_size */
1786                 NULL,                                   /* sd */
1787                 NULL,                                   /* ea_list */
1788                 &fsp,                                   /* result */
1789                 &smb_action,                            /* pinfo */
1790                 &sbuf);                                 /* psbuf */
1791
1792         if (!NT_STATUS_IS_OK(status)) {
1793                 END_PROFILE(SMBopenX);
1794                 if (open_was_deferred(req->mid)) {
1795                         /* We have re-scheduled this call. */
1796                         return;
1797                 }
1798                 reply_openerror(req, status);
1799                 return;
1800         }
1801
1802         /* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
1803            if the file is truncated or created. */
1804         if (((smb_action == FILE_WAS_CREATED) || (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
1805                 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1806                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1807                         close_file(req, fsp, ERROR_CLOSE);
1808                         reply_nterror(req, NT_STATUS_DISK_FULL);
1809                         END_PROFILE(SMBopenX);
1810                         return;
1811                 }
1812                 retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
1813                 if (retval < 0) {
1814                         close_file(req, fsp, ERROR_CLOSE);
1815                         reply_nterror(req, NT_STATUS_DISK_FULL);
1816                         END_PROFILE(SMBopenX);
1817                         return;
1818                 }
1819                 sbuf.st_size = SMB_VFS_GET_ALLOC_SIZE(conn,fsp,&sbuf);
1820         }
1821
1822         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1823         mtime = sbuf.st_mtime;
1824         if (fattr & aDIR) {
1825                 close_file(req, fsp, ERROR_CLOSE);
1826                 reply_doserror(req, ERRDOS, ERRnoaccess);
1827                 END_PROFILE(SMBopenX);
1828                 return;
1829         }
1830
1831         /* If the caller set the extended oplock request bit
1832                 and we granted one (by whatever means) - set the
1833                 correct bit for extended oplock reply.
1834         */
1835
1836         if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1837                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1838         }
1839
1840         if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1841                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1842         }
1843
1844         /* If the caller set the core oplock request bit
1845                 and we granted one (by whatever means) - set the
1846                 correct bit for core oplock reply.
1847         */
1848
1849         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1850                 reply_outbuf(req, 19, 0);
1851         } else {
1852                 reply_outbuf(req, 15, 0);
1853         }
1854
1855         if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1856                 SCVAL(req->outbuf, smb_flg,
1857                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1858         }
1859
1860         if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1861                 SCVAL(req->outbuf, smb_flg,
1862                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1863         }
1864
1865         SSVAL(req->outbuf,smb_vwv2,fsp->fnum);
1866         SSVAL(req->outbuf,smb_vwv3,fattr);
1867         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1868                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime & ~1);
1869         } else {
1870                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
1871         }
1872         SIVAL(req->outbuf,smb_vwv6,(uint32)sbuf.st_size);
1873         SSVAL(req->outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
1874         SSVAL(req->outbuf,smb_vwv11,smb_action);
1875
1876         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1877                 SIVAL(req->outbuf, smb_vwv15, STD_RIGHT_ALL_ACCESS);
1878         }
1879
1880         END_PROFILE(SMBopenX);
1881         chain_reply(req);
1882         return;
1883 }
1884
1885 /****************************************************************************
1886  Reply to a SMBulogoffX.
1887 ****************************************************************************/
1888
1889 void reply_ulogoffX(struct smb_request *req)
1890 {
1891         user_struct *vuser;
1892
1893         START_PROFILE(SMBulogoffX);
1894
1895         vuser = get_valid_user_struct(req->vuid);
1896
1897         if(vuser == NULL) {
1898                 DEBUG(3,("ulogoff, vuser id %d does not map to user.\n",
1899                          req->vuid));
1900         }
1901
1902         /* in user level security we are supposed to close any files
1903                 open by this user */
1904         if ((vuser != NULL) && (lp_security() != SEC_SHARE)) {
1905                 file_close_user(req->vuid);
1906         }
1907
1908         invalidate_vuid(req->vuid);
1909
1910         reply_outbuf(req, 2, 0);
1911
1912         DEBUG( 3, ( "ulogoffX vuid=%d\n", req->vuid ) );
1913
1914         END_PROFILE(SMBulogoffX);
1915         chain_reply(req);
1916 }
1917
1918 /****************************************************************************
1919  Reply to a mknew or a create.
1920 ****************************************************************************/
1921
1922 void reply_mknew(struct smb_request *req)
1923 {
1924         connection_struct *conn = req->conn;
1925         char *fname = NULL;
1926         uint32 fattr = 0;
1927         struct smb_file_time ft;
1928         files_struct *fsp;
1929         int oplock_request = 0;
1930         SMB_STRUCT_STAT sbuf;
1931         NTSTATUS status;
1932         uint32 access_mask = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
1933         uint32 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1934         uint32 create_disposition;
1935         uint32 create_options = 0;
1936         TALLOC_CTX *ctx = talloc_tos();
1937
1938         START_PROFILE(SMBcreate);
1939         ZERO_STRUCT(ft);
1940
1941         if (req->wct < 3) {
1942                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1943                 END_PROFILE(SMBcreate);
1944                 return;
1945         }
1946
1947         fattr = SVAL(req->vwv+0, 0);
1948         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1949
1950         /* mtime. */
1951         ft.mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+1));
1952
1953         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf + 1,
1954                             STR_TERMINATE, &status);
1955         if (!NT_STATUS_IS_OK(status)) {
1956                 reply_nterror(req, status);
1957                 END_PROFILE(SMBcreate);
1958                 return;
1959         }
1960
1961         if (fattr & aVOLID) {
1962                 DEBUG(0,("Attempt to create file (%s) with volid set - "
1963                         "please report this\n", fname));
1964         }
1965
1966         if(req->cmd == SMBmknew) {
1967                 /* We should fail if file exists. */
1968                 create_disposition = FILE_CREATE;
1969         } else {
1970                 /* Create if file doesn't exist, truncate if it does. */
1971                 create_disposition = FILE_OVERWRITE_IF;
1972         }
1973
1974         status = SMB_VFS_CREATE_FILE(
1975                 conn,                                   /* conn */
1976                 req,                                    /* req */
1977                 0,                                      /* root_dir_fid */
1978                 fname,                                  /* fname */
1979                 CFF_DOS_PATH,                           /* create_file_flags */
1980                 access_mask,                            /* access_mask */
1981                 share_mode,                             /* share_access */
1982                 create_disposition,                     /* create_disposition*/
1983                 create_options,                         /* create_options */
1984                 fattr,                                  /* file_attributes */
1985                 oplock_request,                         /* oplock_request */
1986                 0,                                      /* allocation_size */
1987                 NULL,                                   /* sd */
1988                 NULL,                                   /* ea_list */
1989                 &fsp,                                   /* result */
1990                 NULL,                                   /* pinfo */
1991                 &sbuf);                                 /* psbuf */
1992
1993         if (!NT_STATUS_IS_OK(status)) {
1994                 END_PROFILE(SMBcreate);
1995                 if (open_was_deferred(req->mid)) {
1996                         /* We have re-scheduled this call. */
1997                         return;
1998                 }
1999                 reply_openerror(req, status);
2000                 return;
2001         }
2002
2003         ft.atime = get_atimespec(&sbuf); /* atime. */
2004         status = smb_set_file_time(conn, fsp, fsp->fsp_name, &sbuf, &ft, true);
2005         if (!NT_STATUS_IS_OK(status)) {
2006                 END_PROFILE(SMBcreate);
2007                 reply_openerror(req, status);
2008                 return;
2009         }
2010
2011         reply_outbuf(req, 1, 0);
2012         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2013
2014         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2015                 SCVAL(req->outbuf,smb_flg,
2016                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2017         }
2018
2019         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2020                 SCVAL(req->outbuf,smb_flg,
2021                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2022         }
2023
2024         DEBUG( 2, ( "reply_mknew: file %s\n", fsp->fsp_name ) );
2025         DEBUG( 3, ( "reply_mknew %s fd=%d dmode=0x%x\n",
2026                     fsp->fsp_name, fsp->fh->fd, (unsigned int)fattr ) );
2027
2028         END_PROFILE(SMBcreate);
2029         return;
2030 }
2031
2032 /****************************************************************************
2033  Reply to a create temporary file.
2034 ****************************************************************************/
2035
2036 void reply_ctemp(struct smb_request *req)
2037 {
2038         connection_struct *conn = req->conn;
2039         char *fname = NULL;
2040         uint32 fattr;
2041         files_struct *fsp;
2042         int oplock_request;
2043         int tmpfd;
2044         SMB_STRUCT_STAT sbuf;
2045         char *s;
2046         NTSTATUS status;
2047         TALLOC_CTX *ctx = talloc_tos();
2048
2049         START_PROFILE(SMBctemp);
2050
2051         if (req->wct < 3) {
2052                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2053                 END_PROFILE(SMBctemp);
2054                 return;
2055         }
2056
2057         fattr = SVAL(req->vwv+0, 0);
2058         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2059
2060         srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf+1,
2061                             STR_TERMINATE, &status);
2062         if (!NT_STATUS_IS_OK(status)) {
2063                 reply_nterror(req, status);
2064                 END_PROFILE(SMBctemp);
2065                 return;
2066         }
2067         if (*fname) {
2068                 fname = talloc_asprintf(ctx,
2069                                 "%s/TMXXXXXX",
2070                                 fname);
2071         } else {
2072                 fname = talloc_strdup(ctx, "TMXXXXXX");
2073         }
2074
2075         if (!fname) {
2076                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2077                 END_PROFILE(SMBctemp);
2078                 return;
2079         }
2080
2081         status = resolve_dfspath(ctx, conn,
2082                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
2083                                 fname,
2084                                 &fname);
2085         if (!NT_STATUS_IS_OK(status)) {
2086                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2087                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2088                                         ERRSRV, ERRbadpath);
2089                         END_PROFILE(SMBctemp);
2090                         return;
2091                 }
2092                 reply_nterror(req, status);
2093                 END_PROFILE(SMBctemp);
2094                 return;
2095         }
2096
2097         status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf);
2098         if (!NT_STATUS_IS_OK(status)) {
2099                 reply_nterror(req, status);
2100                 END_PROFILE(SMBctemp);
2101                 return;
2102         }
2103
2104         status = check_name(conn, fname);
2105         if (!NT_STATUS_IS_OK(status)) {
2106                 reply_nterror(req, status);
2107                 END_PROFILE(SMBctemp);
2108                 return;
2109         }
2110
2111         tmpfd = smb_mkstemp(fname);
2112         if (tmpfd == -1) {
2113                 reply_unixerror(req, ERRDOS, ERRnoaccess);
2114                 END_PROFILE(SMBctemp);
2115                 return;
2116         }
2117
2118         SMB_VFS_STAT(conn,fname,&sbuf);
2119
2120         /* We should fail if file does not exist. */
2121         status = SMB_VFS_CREATE_FILE(
2122                 conn,                                   /* conn */
2123                 req,                                    /* req */
2124                 0,                                      /* root_dir_fid */
2125                 fname,                                  /* fname */
2126                 0,                                      /* create_file_flags */
2127                 FILE_GENERIC_READ | FILE_GENERIC_WRITE, /* access_mask */
2128                 FILE_SHARE_READ | FILE_SHARE_WRITE,     /* share_access */
2129                 FILE_OPEN,                              /* create_disposition*/
2130                 0,                                      /* create_options */
2131                 fattr,                                  /* file_attributes */
2132                 oplock_request,                         /* oplock_request */
2133                 0,                                      /* allocation_size */
2134                 NULL,                                   /* sd */
2135                 NULL,                                   /* ea_list */
2136                 &fsp,                                   /* result */
2137                 NULL,                                   /* pinfo */
2138                 &sbuf);                                 /* psbuf */
2139
2140         /* close fd from smb_mkstemp() */
2141         close(tmpfd);
2142
2143         if (!NT_STATUS_IS_OK(status)) {
2144                 if (open_was_deferred(req->mid)) {
2145                         /* We have re-scheduled this call. */
2146                         END_PROFILE(SMBctemp);
2147                         return;
2148                 }
2149                 reply_openerror(req, status);
2150                 END_PROFILE(SMBctemp);
2151                 return;
2152         }
2153
2154         reply_outbuf(req, 1, 0);
2155         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2156
2157         /* the returned filename is relative to the directory */
2158         s = strrchr_m(fsp->fsp_name, '/');
2159         if (!s) {
2160                 s = fsp->fsp_name;
2161         } else {
2162                 s++;
2163         }
2164
2165 #if 0
2166         /* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
2167            thing in the byte section. JRA */
2168         SSVALS(p, 0, -1); /* what is this? not in spec */
2169 #endif
2170         if (message_push_string(&req->outbuf, s, STR_ASCII|STR_TERMINATE)
2171             == -1) {
2172                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2173                 END_PROFILE(SMBctemp);
2174                 return;
2175         }
2176
2177         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2178                 SCVAL(req->outbuf, smb_flg,
2179                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2180         }
2181
2182         if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2183                 SCVAL(req->outbuf, smb_flg,
2184                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2185         }
2186
2187         DEBUG( 2, ( "reply_ctemp: created temp file %s\n", fsp->fsp_name ) );
2188         DEBUG( 3, ( "reply_ctemp %s fd=%d umode=0%o\n", fsp->fsp_name,
2189                     fsp->fh->fd, (unsigned int)sbuf.st_mode ) );
2190
2191         END_PROFILE(SMBctemp);
2192         return;
2193 }
2194
2195 /*******************************************************************
2196  Check if a user is allowed to rename a file.
2197 ********************************************************************/
2198
2199 static NTSTATUS can_rename(connection_struct *conn, files_struct *fsp,
2200                            uint16 dirtype, SMB_STRUCT_STAT *pst)
2201 {
2202         uint32 fmode;
2203
2204         if (!CAN_WRITE(conn)) {
2205                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2206         }
2207
2208         fmode = dos_mode(conn, fsp->fsp_name, pst);
2209         if ((fmode & ~dirtype) & (aHIDDEN | aSYSTEM)) {
2210                 return NT_STATUS_NO_SUCH_FILE;
2211         }
2212
2213         if (S_ISDIR(pst->st_mode)) {
2214                 return NT_STATUS_OK;
2215         }
2216
2217         if (fsp->access_mask & (DELETE_ACCESS|FILE_WRITE_ATTRIBUTES)) {
2218                 return NT_STATUS_OK;
2219         }
2220
2221         return NT_STATUS_ACCESS_DENIED;
2222 }
2223
2224 /*******************************************************************
2225  * unlink a file with all relevant access checks
2226  *******************************************************************/
2227
2228 static NTSTATUS do_unlink(connection_struct *conn,
2229                         struct smb_request *req,
2230                         const char *fname,
2231                         uint32 dirtype)
2232 {
2233         SMB_STRUCT_STAT sbuf;
2234         uint32 fattr;
2235         files_struct *fsp;
2236         uint32 dirtype_orig = dirtype;
2237         NTSTATUS status;
2238
2239         DEBUG(10,("do_unlink: %s, dirtype = %d\n", fname, dirtype ));
2240
2241         if (!CAN_WRITE(conn)) {
2242                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2243         }
2244
2245         if (SMB_VFS_LSTAT(conn,fname,&sbuf) != 0) {
2246                 return map_nt_error_from_unix(errno);
2247         }
2248
2249         fattr = dos_mode(conn,fname,&sbuf);
2250
2251         if (dirtype & FILE_ATTRIBUTE_NORMAL) {
2252                 dirtype = aDIR|aARCH|aRONLY;
2253         }
2254
2255         dirtype &= (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM);
2256         if (!dirtype) {
2257                 return NT_STATUS_NO_SUCH_FILE;
2258         }
2259
2260         if (!dir_check_ftype(conn, fattr, dirtype)) {
2261                 if (fattr & aDIR) {
2262                         return NT_STATUS_FILE_IS_A_DIRECTORY;
2263                 }
2264                 return NT_STATUS_NO_SUCH_FILE;
2265         }
2266
2267         if (dirtype_orig & 0x8000) {
2268                 /* These will never be set for POSIX. */
2269                 return NT_STATUS_NO_SUCH_FILE;
2270         }
2271
2272 #if 0
2273         if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
2274                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2275         }
2276
2277         if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
2278                 return NT_STATUS_NO_SUCH_FILE;
2279         }
2280
2281         if (dirtype & 0xFF00) {
2282                 /* These will never be set for POSIX. */
2283                 return NT_STATUS_NO_SUCH_FILE;
2284         }
2285
2286         dirtype &= 0xFF;
2287         if (!dirtype) {
2288                 return NT_STATUS_NO_SUCH_FILE;
2289         }
2290
2291         /* Can't delete a directory. */
2292         if (fattr & aDIR) {
2293                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2294         }
2295 #endif
2296
2297 #if 0 /* JRATEST */
2298         else if (dirtype & aDIR) /* Asked for a directory and it isn't. */
2299                 return NT_STATUS_OBJECT_NAME_INVALID;
2300 #endif /* JRATEST */
2301
2302         /* Fix for bug #3035 from SATOH Fumiyasu <fumiyas@miraclelinux.com>
2303
2304           On a Windows share, a file with read-only dosmode can be opened with
2305           DELETE_ACCESS. But on a Samba share (delete readonly = no), it
2306           fails with NT_STATUS_CANNOT_DELETE error.
2307
2308           This semantic causes a problem that a user can not
2309           rename a file with read-only dosmode on a Samba share
2310           from a Windows command prompt (i.e. cmd.exe, but can rename
2311           from Windows Explorer).
2312         */
2313
2314         if (!lp_delete_readonly(SNUM(conn))) {
2315                 if (fattr & aRONLY) {
2316                         return NT_STATUS_CANNOT_DELETE;
2317                 }
2318         }
2319
2320         /* On open checks the open itself will check the share mode, so
2321            don't do it here as we'll get it wrong. */
2322
2323         status = SMB_VFS_CREATE_FILE
2324                 (conn,                  /* conn */
2325                  req,                   /* req */
2326                  0,                     /* root_dir_fid */
2327                  fname,                 /* fname */
2328                  0,                     /* create_file_flags */
2329                  DELETE_ACCESS,         /* access_mask */
2330                  FILE_SHARE_NONE,       /* share_access */
2331                  FILE_OPEN,             /* create_disposition*/
2332                  FILE_NON_DIRECTORY_FILE, /* create_options */
2333                  FILE_ATTRIBUTE_NORMAL, /* file_attributes */
2334                  0,                     /* oplock_request */
2335                  0,                     /* allocation_size */
2336                  NULL,                  /* sd */
2337                  NULL,                  /* ea_list */
2338                  &fsp,                  /* result */
2339                  NULL,                  /* pinfo */
2340                  &sbuf);                /* psbuf */
2341
2342         if (!NT_STATUS_IS_OK(status)) {
2343                 DEBUG(10, ("SMB_VFS_CREATEFILE failed: %s\n",
2344                            nt_errstr(status)));
2345                 return status;
2346         }
2347
2348         /* The set is across all open files on this dev/inode pair. */
2349         if (!set_delete_on_close(fsp, True, &conn->server_info->utok)) {
2350                 close_file(req, fsp, NORMAL_CLOSE);
2351                 return NT_STATUS_ACCESS_DENIED;
2352         }
2353
2354         return close_file(req, fsp, NORMAL_CLOSE);
2355 }
2356
2357 /****************************************************************************
2358  The guts of the unlink command, split out so it may be called by the NT SMB
2359  code.
2360 ****************************************************************************/
2361
2362 NTSTATUS unlink_internals(connection_struct *conn, struct smb_request *req,
2363                           uint32 dirtype, const char *name_in, bool has_wild)
2364 {
2365         const char *directory = NULL;
2366         char *mask = NULL;
2367         char *name = NULL;
2368         char *p = NULL;
2369         int count=0;
2370         NTSTATUS status = NT_STATUS_OK;
2371         SMB_STRUCT_STAT sbuf;
2372         TALLOC_CTX *ctx = talloc_tos();
2373
2374         status = unix_convert(ctx, conn, name_in, has_wild, &name, NULL, &sbuf);
2375         if (!NT_STATUS_IS_OK(status)) {
2376                 return status;
2377         }
2378
2379         p = strrchr_m(name,'/');
2380         if (!p) {
2381                 directory = talloc_strdup(ctx, ".");
2382                 if (!directory) {
2383                         return NT_STATUS_NO_MEMORY;
2384                 }
2385                 mask = name;
2386         } else {
2387                 *p = 0;
2388                 directory = name;
2389                 mask = p+1;
2390         }
2391
2392         /*
2393          * We should only check the mangled cache
2394          * here if unix_convert failed. This means
2395          * that the path in 'mask' doesn't exist
2396          * on the file system and so we need to look
2397          * for a possible mangle. This patch from
2398          * Tine Smukavec <valentin.smukavec@hermes.si>.
2399          */
2400
2401         if (!VALID_STAT(sbuf) && mangle_is_mangled(mask,conn->params)) {
2402                 char *new_mask = NULL;
2403                 mangle_lookup_name_from_8_3(ctx,
2404                                 mask,
2405                                 &new_mask,
2406                                 conn->params );
2407                 if (new_mask) {
2408                         mask = new_mask;
2409                 }
2410         }
2411
2412         if (!has_wild) {
2413                 directory = talloc_asprintf(ctx,
2414                                 "%s/%s",
2415                                 directory,
2416                                 mask);
2417                 if (!directory) {
2418                         return NT_STATUS_NO_MEMORY;
2419                 }
2420                 if (dirtype == 0) {
2421                         dirtype = FILE_ATTRIBUTE_NORMAL;
2422                 }
2423
2424                 status = check_name(conn, directory);
2425                 if (!NT_STATUS_IS_OK(status)) {
2426                         return status;
2427                 }
2428
2429                 status = do_unlink(conn, req, directory, dirtype);
2430                 if (!NT_STATUS_IS_OK(status)) {
2431                         return status;
2432                 }
2433
2434                 count++;
2435         } else {
2436                 struct smb_Dir *dir_hnd = NULL;
2437                 long offset = 0;
2438                 const char *dname;
2439
2440                 if ((dirtype & SAMBA_ATTRIBUTES_MASK) == aDIR) {
2441                         return NT_STATUS_OBJECT_NAME_INVALID;
2442                 }
2443
2444                 if (strequal(mask,"????????.???")) {
2445                         mask[0] = '*';
2446                         mask[1] = '\0';
2447                 }
2448
2449                 status = check_name(conn, directory);
2450                 if (!NT_STATUS_IS_OK(status)) {
2451                         return status;
2452                 }
2453
2454                 dir_hnd = OpenDir(talloc_tos(), conn, directory, mask,
2455                                   dirtype);
2456                 if (dir_hnd == NULL) {
2457                         return map_nt_error_from_unix(errno);
2458                 }
2459
2460                 /* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2461                    the pattern matches against the long name, otherwise the short name
2462                    We don't implement this yet XXXX
2463                 */
2464
2465                 status = NT_STATUS_NO_SUCH_FILE;
2466
2467                 while ((dname = ReadDirName(dir_hnd, &offset))) {
2468                         SMB_STRUCT_STAT st;
2469                         char *fname = NULL;
2470
2471                         if (!is_visible_file(conn, directory, dname, &st, True)) {
2472                                 continue;
2473                         }
2474
2475                         /* Quick check for "." and ".." */
2476                         if (ISDOT(dname) || ISDOTDOT(dname)) {
2477                                 continue;
2478                         }
2479
2480                         if(!mask_match(dname, mask, conn->case_sensitive)) {
2481                                 continue;
2482                         }
2483
2484                         fname = talloc_asprintf(ctx, "%s/%s",
2485                                         directory,
2486                                         dname);
2487                         if (!fname) {
2488                                 return NT_STATUS_NO_MEMORY;
2489                         }
2490
2491                         status = check_name(conn, fname);
2492                         if (!NT_STATUS_IS_OK(status)) {
2493                                 TALLOC_FREE(dir_hnd);
2494                                 return status;
2495                         }
2496
2497                         status = do_unlink(conn, req, fname, dirtype);
2498                         if (!NT_STATUS_IS_OK(status)) {
2499                                 TALLOC_FREE(fname);
2500                                 continue;
2501                         }
2502
2503                         count++;
2504                         DEBUG(3,("unlink_internals: successful unlink [%s]\n",
2505                                  fname));
2506
2507                         TALLOC_FREE(fname);
2508                 }
2509                 TALLOC_FREE(dir_hnd);
2510         }
2511
2512         if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
2513                 status = map_nt_error_from_unix(errno);
2514         }
2515
2516         return status;
2517 }
2518
2519 /****************************************************************************
2520  Reply to a unlink
2521 ****************************************************************************/
2522
2523 void reply_unlink(struct smb_request *req)
2524 {
2525         connection_struct *conn = req->conn;
2526         char *name = NULL;
2527         uint32 dirtype;
2528         NTSTATUS status;
2529         bool path_contains_wcard = False;
2530         TALLOC_CTX *ctx = talloc_tos();
2531
2532         START_PROFILE(SMBunlink);
2533
2534         if (req->wct < 1) {
2535                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2536                 END_PROFILE(SMBunlink);
2537                 return;
2538         }
2539
2540         dirtype = SVAL(req->vwv+0, 0);
2541
2542         srvstr_get_path_req_wcard(ctx, req, &name, (const char *)req->buf + 1,
2543                                   STR_TERMINATE, &status,
2544                                   &path_contains_wcard);
2545         if (!NT_STATUS_IS_OK(status)) {
2546                 reply_nterror(req, status);
2547                 END_PROFILE(SMBunlink);
2548                 return;
2549         }
2550
2551         status = resolve_dfspath_wcard(ctx, conn,
2552                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
2553                                        name,
2554                                        &name,
2555                                        &path_contains_wcard);
2556         if (!NT_STATUS_IS_OK(status)) {
2557                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2558                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2559                                         ERRSRV, ERRbadpath);
2560                         END_PROFILE(SMBunlink);
2561                         return;
2562                 }
2563                 reply_nterror(req, status);
2564                 END_PROFILE(SMBunlink);
2565                 return;
2566         }
2567
2568         DEBUG(3,("reply_unlink : %s\n",name));
2569
2570         status = unlink_internals(conn, req, dirtype, name,
2571                                   path_contains_wcard);
2572         if (!NT_STATUS_IS_OK(status)) {
2573                 if (open_was_deferred(req->mid)) {
2574                         /* We have re-scheduled this call. */
2575                         END_PROFILE(SMBunlink);
2576                         return;
2577                 }
2578                 reply_nterror(req, status);
2579                 END_PROFILE(SMBunlink);
2580                 return;
2581         }
2582
2583         reply_outbuf(req, 0, 0);
2584         END_PROFILE(SMBunlink);
2585
2586         return;
2587 }
2588
2589 /****************************************************************************
2590  Fail for readbraw.
2591 ****************************************************************************/
2592
2593 static void fail_readraw(void)
2594 {
2595         const char *errstr = talloc_asprintf(talloc_tos(),
2596                         "FAIL ! reply_readbraw: socket write fail (%s)",
2597                         strerror(errno));
2598         if (!errstr) {
2599                 errstr = "";
2600         }
2601         exit_server_cleanly(errstr);
2602 }
2603
2604 /****************************************************************************
2605  Fake (read/write) sendfile. Returns -1 on read or write fail.
2606 ****************************************************************************/
2607
2608 static ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos,
2609                              size_t nread)
2610 {
2611         size_t bufsize;
2612         size_t tosend = nread;
2613         char *buf;
2614
2615         if (nread == 0) {
2616                 return 0;
2617         }
2618
2619         bufsize = MIN(nread, 65536);
2620
2621         if (!(buf = SMB_MALLOC_ARRAY(char, bufsize))) {
2622                 return -1;
2623         }
2624
2625         while (tosend > 0) {
2626                 ssize_t ret;
2627                 size_t cur_read;
2628
2629                 if (tosend > bufsize) {
2630                         cur_read = bufsize;
2631                 } else {
2632                         cur_read = tosend;
2633                 }
2634                 ret = read_file(fsp,buf,startpos,cur_read);
2635                 if (ret == -1) {
2636                         SAFE_FREE(buf);
2637                         return -1;
2638                 }
2639
2640                 /* If we had a short read, fill with zeros. */
2641                 if (ret < cur_read) {
2642                         memset(buf, '\0', cur_read - ret);
2643                 }
2644
2645                 if (write_data(smbd_server_fd(),buf,cur_read) != cur_read) {
2646                         SAFE_FREE(buf);
2647                         return -1;
2648                 }
2649                 tosend -= cur_read;
2650                 startpos += cur_read;
2651         }
2652
2653         SAFE_FREE(buf);
2654         return (ssize_t)nread;
2655 }
2656
2657 /****************************************************************************
2658  Deal with the case of sendfile reading less bytes from the file than
2659  requested. Fill with zeros (all we can do).
2660 ****************************************************************************/
2661
2662 static void sendfile_short_send(files_struct *fsp,
2663                                 ssize_t nread,
2664                                 size_t headersize,
2665                                 size_t smb_maxcnt)
2666 {
2667         if (nread < headersize) {
2668                 DEBUG(0,("sendfile_short_send: sendfile failed to send "
2669                         "header for file %s (%s). Terminating\n",
2670                         fsp->fsp_name, strerror(errno) ));
2671                 exit_server_cleanly("sendfile_short_send failed");
2672         }
2673
2674         nread -= headersize;
2675
2676         if (nread < smb_maxcnt) {
2677                 char *buf = SMB_CALLOC_ARRAY(char, 1024);
2678                 if (!buf) {
2679                         exit_server_cleanly("sendfile_short_send: "
2680                                 "malloc failed");
2681                 }
2682
2683                 DEBUG(0,("sendfile_short_send: filling truncated file %s "
2684                         "with zeros !\n", fsp->fsp_name));
2685
2686                 while (nread < smb_maxcnt) {
2687                         /*
2688                          * We asked for the real file size and told sendfile
2689                          * to not go beyond the end of the file. But it can
2690                          * happen that in between our fstat call and the
2691                          * sendfile call the file was truncated. This is very
2692                          * bad because we have already announced the larger
2693                          * number of bytes to the client.
2694                          *
2695                          * The best we can do now is to send 0-bytes, just as
2696                          * a read from a hole in a sparse file would do.
2697                          *
2698                          * This should happen rarely enough that I don't care
2699                          * about efficiency here :-)
2700                          */
2701                         size_t to_write;
2702
2703                         to_write = MIN(sizeof(buf), smb_maxcnt - nread);
2704                         if (write_data(smbd_server_fd(), buf, to_write) != to_write) {
2705                                 exit_server_cleanly("sendfile_short_send: "
2706                                         "write_data failed");
2707                         }
2708                         nread += to_write;
2709                 }
2710                 SAFE_FREE(buf);
2711         }
2712 }
2713
2714 /****************************************************************************
2715  Return a readbraw error (4 bytes of zero).
2716 ****************************************************************************/
2717
2718 static void reply_readbraw_error(void)
2719 {
2720         char header[4];
2721         SIVAL(header,0,0);
2722         if (write_data(smbd_server_fd(),header,4) != 4) {
2723                 fail_readraw();
2724         }
2725 }
2726
2727 /****************************************************************************
2728  Use sendfile in readbraw.
2729 ****************************************************************************/
2730
2731 void send_file_readbraw(connection_struct *conn,
2732                         struct smb_request *req,
2733                         files_struct *fsp,
2734                         SMB_OFF_T startpos,
2735                         size_t nread,
2736                         ssize_t mincount)
2737 {
2738         char *outbuf = NULL;
2739         ssize_t ret=0;
2740
2741 #if defined(WITH_SENDFILE)
2742         /*
2743          * We can only use sendfile on a non-chained packet
2744          * but we can use on a non-oplocked file. tridge proved this
2745          * on a train in Germany :-). JRA.
2746          * reply_readbraw has already checked the length.
2747          */
2748
2749         if ( !req_is_in_chain(req) && (nread > 0) && (fsp->base_fsp == NULL) &&
2750             (fsp->wcp == NULL) && lp_use_sendfile(SNUM(conn)) ) {
2751                 ssize_t sendfile_read = -1;
2752                 char header[4];
2753                 DATA_BLOB header_blob;
2754
2755                 _smb_setlen(header,nread);
2756                 header_blob = data_blob_const(header, 4);
2757
2758                 if ((sendfile_read = SMB_VFS_SENDFILE(smbd_server_fd(), fsp,
2759                                 &header_blob, startpos, nread)) == -1) {
2760                         /* Returning ENOSYS means no data at all was sent.
2761                          * Do this as a normal read. */
2762                         if (errno == ENOSYS) {
2763                                 goto normal_readbraw;
2764                         }
2765
2766                         /*
2767                          * Special hack for broken Linux with no working sendfile. If we
2768                          * return EINTR we sent the header but not the rest of the data.
2769                          * Fake this up by doing read/write calls.
2770                          */
2771                         if (errno == EINTR) {
2772                                 /* Ensure we don't do this again. */
2773                                 set_use_sendfile(SNUM(conn), False);
2774                                 DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
2775
2776                                 if (fake_sendfile(fsp, startpos, nread) == -1) {
2777                                         DEBUG(0,("send_file_readbraw: fake_sendfile failed for file %s (%s).\n",
2778                                                 fsp->fsp_name, strerror(errno) ));
2779                                         exit_server_cleanly("send_file_readbraw fake_sendfile failed");
2780                                 }
2781                                 return;
2782                         }
2783
2784                         DEBUG(0,("send_file_readbraw: sendfile failed for file %s (%s). Terminating\n",
2785                                 fsp->fsp_name, strerror(errno) ));
2786                         exit_server_cleanly("send_file_readbraw sendfile failed");
2787                 }
2788
2789                 /* Deal with possible short send. */
2790                 if (sendfile_read != 4+nread) {
2791                         sendfile_short_send(fsp, sendfile_read, 4, nread);
2792                 }
2793                 return;
2794         }
2795 #endif
2796
2797 normal_readbraw:
2798
2799         outbuf = TALLOC_ARRAY(NULL, char, nread+4);
2800         if (!outbuf) {
2801                 DEBUG(0,("send_file_readbraw: TALLOC_ARRAY failed for size %u.\n",
2802                         (unsigned)(nread+4)));
2803                 reply_readbraw_error();
2804                 return;
2805         }
2806
2807         if (nread > 0) {
2808                 ret = read_file(fsp,outbuf+4,startpos,nread);
2809 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2810                 if (ret < mincount)
2811                         ret = 0;
2812 #else
2813                 if (ret < nread)
2814                         ret = 0;
2815 #endif
2816         }
2817
2818         _smb_setlen(outbuf,ret);
2819         if (write_data(smbd_server_fd(),outbuf,4+ret) != 4+ret)
2820                 fail_readraw();
2821
2822         TALLOC_FREE(outbuf);
2823 }
2824
2825 /****************************************************************************
2826  Reply to a readbraw (core+ protocol).
2827 ****************************************************************************/
2828
2829 void reply_readbraw(struct smb_request *req)
2830 {
2831         connection_struct *conn = req->conn;
2832         ssize_t maxcount,mincount;
2833         size_t nread = 0;
2834         SMB_OFF_T startpos;
2835         files_struct *fsp;
2836         SMB_STRUCT_STAT st;
2837         SMB_OFF_T size = 0;
2838
2839         START_PROFILE(SMBreadbraw);
2840
2841         if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
2842                 exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
2843                         "raw reads/writes are disallowed.");
2844         }
2845
2846         if (req->wct < 8) {
2847                 reply_readbraw_error();
2848                 END_PROFILE(SMBreadbraw);
2849                 return;
2850         }
2851
2852         /*
2853          * Special check if an oplock break has been issued
2854          * and the readraw request croses on the wire, we must
2855          * return a zero length response here.
2856          */
2857
2858         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
2859
2860         /*
2861          * We have to do a check_fsp by hand here, as
2862          * we must always return 4 zero bytes on error,
2863          * not a NTSTATUS.
2864          */
2865
2866         if (!fsp || !conn || conn != fsp->conn ||
2867                         req->vuid != fsp->vuid ||
2868                         fsp->is_directory || fsp->fh->fd == -1) {
2869                 /*
2870                  * fsp could be NULL here so use the value from the packet. JRA.
2871                  */
2872                 DEBUG(3,("reply_readbraw: fnum %d not valid "
2873                         "- cache prime?\n",
2874                         (int)SVAL(req->vwv+0, 0)));
2875                 reply_readbraw_error();
2876                 END_PROFILE(SMBreadbraw);
2877                 return;
2878         }
2879
2880         /* Do a "by hand" version of CHECK_READ. */
2881         if (!(fsp->can_read ||
2882                         ((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) &&
2883                                 (fsp->access_mask & FILE_EXECUTE)))) {
2884                 DEBUG(3,("reply_readbraw: fnum %d not readable.\n",
2885                                 (int)SVAL(req->vwv+0, 0)));
2886                 reply_readbraw_error();
2887                 END_PROFILE(SMBreadbraw);
2888                 return;
2889         }
2890
2891         flush_write_cache(fsp, READRAW_FLUSH);
2892
2893         startpos = IVAL_TO_SMB_OFF_T(req->vwv+1, 0);
2894         if(req->wct == 10) {
2895                 /*
2896                  * This is a large offset (64 bit) read.
2897                  */
2898 #ifdef LARGE_SMB_OFF_T
2899
2900                 startpos |= (((SMB_OFF_T)IVAL(req->vwv+8, 0)) << 32);
2901
2902 #else /* !LARGE_SMB_OFF_T */
2903
2904                 /*
2905                  * Ensure we haven't been sent a >32 bit offset.
2906                  */
2907
2908                 if(IVAL(req->vwv+8, 0) != 0) {
2909                         DEBUG(0,("reply_readbraw: large offset "
2910                                 "(%x << 32) used and we don't support "
2911                                 "64 bit offsets.\n",
2912                         (unsigned int)IVAL(req->vwv+8, 0) ));
2913                         reply_readbraw_error();
2914                         END_PROFILE(SMBreadbraw);
2915                         return;
2916                 }
2917
2918 #endif /* LARGE_SMB_OFF_T */
2919
2920                 if(startpos < 0) {
2921                         DEBUG(0,("reply_readbraw: negative 64 bit "
2922                                 "readraw offset (%.0f) !\n",
2923                                 (double)startpos ));
2924                         reply_readbraw_error();
2925                         END_PROFILE(SMBreadbraw);
2926                         return;
2927                 }
2928         }
2929
2930         maxcount = (SVAL(req->vwv+3, 0) & 0xFFFF);
2931         mincount = (SVAL(req->vwv+4, 0) & 0xFFFF);
2932
2933         /* ensure we don't overrun the packet size */
2934         maxcount = MIN(65535,maxcount);
2935
2936         if (is_locked(fsp,(uint32)req->smbpid,
2937                         (uint64_t)maxcount,
2938                         (uint64_t)startpos,
2939                         READ_LOCK)) {
2940                 reply_readbraw_error();
2941                 END_PROFILE(SMBreadbraw);
2942                 return;
2943         }
2944
2945         if (SMB_VFS_FSTAT(fsp, &st) == 0) {
2946                 size = st.st_size;
2947         }
2948
2949         if (startpos >= size) {
2950                 nread = 0;
2951         } else {
2952                 nread = MIN(maxcount,(size - startpos));
2953         }
2954
2955 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2956         if (nread < mincount)
2957                 nread = 0;
2958 #endif
2959
2960         DEBUG( 3, ( "reply_readbraw: fnum=%d start=%.0f max=%lu "
2961                 "min=%lu nread=%lu\n",
2962                 fsp->fnum, (double)startpos,
2963                 (unsigned long)maxcount,
2964                 (unsigned long)mincount,
2965                 (unsigned long)nread ) );
2966
2967         send_file_readbraw(conn, req, fsp, startpos, nread, mincount);
2968
2969         DEBUG(5,("reply_readbraw finished\n"));
2970         END_PROFILE(SMBreadbraw);
2971 }
2972
2973 #undef DBGC_CLASS
2974 #define DBGC_CLASS DBGC_LOCKING
2975
2976 /****************************************************************************
2977  Reply to a lockread (core+ protocol).
2978 ****************************************************************************/
2979
2980 void reply_lockread(struct smb_request *req)
2981 {
2982         connection_struct *conn = req->conn;
2983         ssize_t nread = -1;
2984         char *data;
2985         SMB_OFF_T startpos;
2986         size_t numtoread;
2987         NTSTATUS status;
2988         files_struct *fsp;
2989         struct byte_range_lock *br_lck = NULL;
2990         char *p = NULL;
2991
2992         START_PROFILE(SMBlockread);
2993
2994         if (req->wct < 5) {
2995                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2996                 END_PROFILE(SMBlockread);
2997                 return;
2998         }
2999
3000         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3001
3002         if (!check_fsp(conn, req, fsp)) {
3003                 END_PROFILE(SMBlockread);
3004                 return;
3005         }
3006
3007         if (!CHECK_READ(fsp,req)) {
3008                 reply_doserror(req, ERRDOS, ERRbadaccess);
3009                 END_PROFILE(SMBlockread);
3010                 return;
3011         }
3012
3013         release_level_2_oplocks_on_change(fsp);
3014
3015         numtoread = SVAL(req->vwv+1, 0);
3016         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3017
3018         numtoread = MIN(BUFFER_SIZE - (smb_size + 3*2 + 3), numtoread);
3019
3020         reply_outbuf(req, 5, numtoread + 3);
3021
3022         data = smb_buf(req->outbuf) + 3;
3023
3024         /*
3025          * NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
3026          * protocol request that predates the read/write lock concept.
3027          * Thus instead of asking for a read lock here we need to ask
3028          * for a write lock. JRA.
3029          * Note that the requested lock size is unaffected by max_recv.
3030          */
3031
3032         br_lck = do_lock(smbd_messaging_context(),
3033                         fsp,
3034                         req->smbpid,
3035                         (uint64_t)numtoread,
3036                         (uint64_t)startpos,
3037                         WRITE_LOCK,
3038                         WINDOWS_LOCK,
3039                         False, /* Non-blocking lock. */
3040                         &status,
3041                         NULL);
3042         TALLOC_FREE(br_lck);
3043
3044         if (NT_STATUS_V(status)) {
3045                 reply_nterror(req, status);
3046                 END_PROFILE(SMBlockread);
3047                 return;
3048         }
3049
3050         /*
3051          * However the requested READ size IS affected by max_recv. Insanity.... JRA.
3052          */
3053
3054         if (numtoread > max_recv) {
3055                 DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
3056 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3057                         (unsigned int)numtoread, (unsigned int)max_recv ));
3058                 numtoread = MIN(numtoread,max_recv);
3059         }
3060         nread = read_file(fsp,data,startpos,numtoread);
3061
3062         if (nread < 0) {
3063                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3064                 END_PROFILE(SMBlockread);
3065                 return;
3066         }
3067
3068         srv_set_message((char *)req->outbuf, 5, nread+3, False);
3069
3070         SSVAL(req->outbuf,smb_vwv0,nread);
3071         SSVAL(req->outbuf,smb_vwv5,nread+3);
3072         p = smb_buf(req->outbuf);
3073         SCVAL(p,0,0); /* pad byte. */
3074         SSVAL(p,1,nread);
3075
3076         DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
3077                  fsp->fnum, (int)numtoread, (int)nread));
3078
3079         END_PROFILE(SMBlockread);
3080         return;
3081 }
3082
3083 #undef DBGC_CLASS
3084 #define DBGC_CLASS DBGC_ALL
3085
3086 /****************************************************************************
3087  Reply to a read.
3088 ****************************************************************************/
3089
3090 void reply_read(struct smb_request *req)
3091 {
3092         connection_struct *conn = req->conn;
3093         size_t numtoread;
3094         ssize_t nread = 0;
3095         char *data;
3096         SMB_OFF_T startpos;
3097         int outsize = 0;
3098         files_struct *fsp;
3099
3100         START_PROFILE(SMBread);
3101
3102         if (req->wct < 3) {
3103                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3104                 END_PROFILE(SMBread);
3105                 return;
3106         }
3107
3108         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3109
3110         if (!check_fsp(conn, req, fsp)) {
3111                 END_PROFILE(SMBread);
3112                 return;
3113         }
3114
3115         if (!CHECK_READ(fsp,req)) {
3116                 reply_doserror(req, ERRDOS, ERRbadaccess);
3117                 END_PROFILE(SMBread);
3118                 return;
3119         }
3120
3121         numtoread = SVAL(req->vwv+1, 0);
3122         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3123
3124         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
3125
3126         /*
3127          * The requested read size cannot be greater than max_recv. JRA.
3128          */
3129         if (numtoread > max_recv) {
3130                 DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
3131 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3132                         (unsigned int)numtoread, (unsigned int)max_recv ));
3133                 numtoread = MIN(numtoread,max_recv);
3134         }
3135
3136         reply_outbuf(req, 5, numtoread+3);
3137
3138         data = smb_buf(req->outbuf) + 3;
3139
3140         if (is_locked(fsp, (uint32)req->smbpid, (uint64_t)numtoread,
3141                       (uint64_t)startpos, READ_LOCK)) {
3142                 reply_doserror(req, ERRDOS,ERRlock);
3143                 END_PROFILE(SMBread);
3144                 return;
3145         }
3146
3147         if (numtoread > 0)
3148                 nread = read_file(fsp,data,startpos,numtoread);
3149
3150         if (nread < 0) {
3151                 reply_unixerror(req, ERRDOS,ERRnoaccess);
3152                 END_PROFILE(SMBread);
3153                 return;
3154         }
3155
3156         srv_set_message((char *)req->outbuf, 5, nread+3, False);
3157
3158         SSVAL(req->outbuf,smb_vwv0,nread);
3159         SSVAL(req->outbuf,smb_vwv5,nread+3);
3160         SCVAL(smb_buf(req->outbuf),0,1);
3161         SSVAL(smb_buf(req->outbuf),1,nread);
3162
3163         DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
3164                 fsp->fnum, (int)numtoread, (int)nread ) );
3165
3166         END_PROFILE(SMBread);
3167         return;
3168 }
3169
3170 /****************************************************************************
3171  Setup readX header.
3172 ****************************************************************************/
3173
3174 static int setup_readX_header(struct smb_request *req, char *outbuf,
3175                               size_t smb_maxcnt)
3176 {
3177         int outsize;
3178         char *data;
3179
3180         outsize = srv_set_message(outbuf,12,smb_maxcnt,False);
3181         data = smb_buf(outbuf);
3182
3183         memset(outbuf+smb_vwv0,'\0',24); /* valgrind init. */
3184
3185         SCVAL(outbuf,smb_vwv0,0xFF);
3186         SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
3187         SSVAL(outbuf,smb_vwv5,smb_maxcnt);
3188         SSVAL(outbuf,smb_vwv6,
3189               req_wct_ofs(req)
3190               + 1               /* the wct field */
3191               + 12 * sizeof(uint16_t) /* vwv */
3192               + 2);             /* the buflen field */
3193         SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
3194         SSVAL(outbuf,smb_vwv11,smb_maxcnt);
3195         /* Reset the outgoing length, set_message truncates at 0x1FFFF. */
3196         _smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
3197         return outsize;
3198 }
3199
3200 /****************************************************************************
3201  Reply to a read and X - possibly using sendfile.
3202 ****************************************************************************/
3203
3204 static void send_file_readX(connection_struct *conn, struct smb_request *req,
3205                             files_struct *fsp, SMB_OFF_T startpos,
3206                             size_t smb_maxcnt)
3207 {
3208         SMB_STRUCT_STAT sbuf;
3209         ssize_t nread = -1;
3210
3211         if(SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
3212                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3213                 return;
3214         }
3215
3216         if (startpos > sbuf.st_size) {
3217                 smb_maxcnt = 0;
3218         } else if (smb_maxcnt > (sbuf.st_size - startpos)) {
3219                 smb_maxcnt = (sbuf.st_size - startpos);
3220         }
3221
3222         if (smb_maxcnt == 0) {
3223                 goto normal_read;
3224         }
3225
3226 #if defined(WITH_SENDFILE)
3227         /*
3228          * We can only use sendfile on a non-chained packet
3229          * but we can use on a non-oplocked file. tridge proved this
3230          * on a train in Germany :-). JRA.
3231          */
3232
3233         if (!req_is_in_chain(req) &&
3234             !is_encrypted_packet(req->inbuf) && (fsp->base_fsp == NULL) &&
3235             lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
3236                 uint8 headerbuf[smb_size + 12 * 2];
3237                 DATA_BLOB header;
3238
3239                 /*
3240                  * Set up the packet header before send. We
3241                  * assume here the sendfile will work (get the
3242                  * correct amount of data).
3243                  */
3244
3245                 header = data_blob_const(headerbuf, sizeof(headerbuf));
3246
3247                 construct_reply_common_req(req, (char *)headerbuf);
3248                 setup_readX_header(req, (char *)headerbuf, smb_maxcnt);
3249
3250                 if ((nread = SMB_VFS_SENDFILE(smbd_server_fd(), fsp, &header, startpos, smb_maxcnt)) == -1) {
3251                         /* Returning ENOSYS means no data at all was sent.
3252                            Do this as a normal read. */
3253                         if (errno == ENOSYS) {
3254                                 goto normal_read;
3255                         }
3256
3257                         /*
3258                          * Special hack for broken Linux with no working sendfile. If we
3259                          * return EINTR we sent the header but not the rest of the data.
3260                          * Fake this up by doing read/write calls.
3261                          */
3262
3263                         if (errno == EINTR) {
3264                                 /* Ensure we don't do this again. */
3265                                 set_use_sendfile(SNUM(conn), False);
3266                                 DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
3267                                 nread = fake_sendfile(fsp, startpos,
3268                                                       smb_maxcnt);
3269                                 if (nread == -1) {
3270                                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3271                                                 fsp->fsp_name, strerror(errno) ));
3272                                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3273                                 }
3274                                 DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
3275                                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3276                                 /* No outbuf here means successful sendfile. */
3277                                 TALLOC_FREE(req->outbuf);
3278                                 return;
3279                         }
3280
3281                         DEBUG(0,("send_file_readX: sendfile failed for file %s (%s). Terminating\n",
3282                                 fsp->fsp_name, strerror(errno) ));
3283                         exit_server_cleanly("send_file_readX sendfile failed");
3284                 }
3285
3286                 DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
3287                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3288
3289                 /* Deal with possible short send. */
3290                 if (nread != smb_maxcnt + sizeof(headerbuf)) {
3291                         sendfile_short_send(fsp, nread, sizeof(headerbuf), smb_maxcnt);
3292                 }
3293
3294                 /* No outbuf here means successful sendfile. */
3295                 TALLOC_FREE(req->outbuf);
3296                 return;
3297         }
3298 #endif
3299
3300 normal_read:
3301
3302         if ((smb_maxcnt & 0xFF0000) > 0x10000) {
3303                 uint8 headerbuf[smb_size + 2*12];
3304
3305                 construct_reply_common_req(req, (char *)headerbuf);
3306                 setup_readX_header(req, (char *)headerbuf, smb_maxcnt);
3307
3308                 /* Send out the header. */
3309                 if (write_data(smbd_server_fd(), (char *)headerbuf,
3310                                sizeof(headerbuf)) != sizeof(headerbuf)) {
3311                         DEBUG(0,("send_file_readX: write_data failed for file %s (%s). Terminating\n",
3312                                 fsp->fsp_name, strerror(errno) ));
3313                         exit_server_cleanly("send_file_readX sendfile failed");
3314                 }
3315                 nread = fake_sendfile(fsp, startpos, smb_maxcnt);
3316                 if (nread == -1) {
3317                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3318                                 fsp->fsp_name, strerror(errno) ));
3319                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3320                 }
3321                 TALLOC_FREE(req->outbuf);
3322                 return;
3323         }
3324
3325         reply_outbuf(req, 12, smb_maxcnt);
3326
3327         nread = read_file(fsp, smb_buf(req->outbuf), startpos, smb_maxcnt);
3328         if (nread < 0) {
3329                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3330                 return;
3331         }
3332
3333         setup_readX_header(req, (char *)req->outbuf, nread);
3334
3335         DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
3336                     fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3337
3338         chain_reply(req);
3339 }
3340
3341 /****************************************************************************
3342  Reply to a read and X.
3343 ****************************************************************************/
3344
3345 void reply_read_and_X(struct smb_request *req)
3346 {
3347         connection_struct *conn = req->conn;
3348         files_struct *fsp;
3349         SMB_OFF_T startpos;
3350         size_t smb_maxcnt;
3351         bool big_readX = False;
3352 #if 0
3353         size_t smb_mincnt = SVAL(req->vwv+6, 0);
3354 #endif
3355
3356         START_PROFILE(SMBreadX);
3357
3358         if ((req->wct != 10) && (req->wct != 12)) {
3359                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3360                 return;
3361         }
3362
3363         fsp = file_fsp(req, SVAL(req->vwv+2, 0));
3364         startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3365         smb_maxcnt = SVAL(req->vwv+5, 0);
3366
3367         /* If it's an IPC, pass off the pipe handler. */
3368         if (IS_IPC(conn)) {
3369                 reply_pipe_read_and_X(req);
3370                 END_PROFILE(SMBreadX);
3371                 return;
3372         }
3373
3374         if (!check_fsp(conn, req, fsp)) {
3375                 END_PROFILE(SMBreadX);
3376                 return;
3377         }
3378
3379         if (!CHECK_READ(fsp,req)) {
3380                 reply_doserror(req, ERRDOS,ERRbadaccess);
3381                 END_PROFILE(SMBreadX);
3382                 return;
3383         }
3384
3385         if (global_client_caps & CAP_LARGE_READX) {
3386                 size_t upper_size = SVAL(req->vwv+7, 0);
3387                 smb_maxcnt |= (upper_size<<16);
3388                 if (upper_size > 1) {
3389                         /* Can't do this on a chained packet. */
3390                         if ((CVAL(req->vwv+0, 0) != 0xFF)) {
3391                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3392                                 END_PROFILE(SMBreadX);
3393                                 return;
3394                         }
3395                         /* We currently don't do this on signed or sealed data. */
3396                         if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
3397                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3398                                 END_PROFILE(SMBreadX);
3399                                 return;
3400                         }
3401                         /* Is there room in the reply for this data ? */
3402                         if (smb_maxcnt > (0xFFFFFF - (smb_size -4 + 12*2)))  {
3403                                 reply_nterror(req,
3404                                               NT_STATUS_INVALID_PARAMETER);
3405                                 END_PROFILE(SMBreadX);
3406                                 return;
3407                         }
3408                         big_readX = True;
3409                 }
3410         }
3411
3412         if (req->wct == 12) {
3413 #ifdef LARGE_SMB_OFF_T
3414                 /*
3415                  * This is a large offset (64 bit) read.
3416                  */
3417                 startpos |= (((SMB_OFF_T)IVAL(req->vwv+10, 0)) << 32);
3418
3419 #else /* !LARGE_SMB_OFF_T */
3420
3421                 /*
3422                  * Ensure we haven't been sent a >32 bit offset.
3423                  */
3424
3425                 if(IVAL(req->vwv+10, 0) != 0) {
3426                         DEBUG(0,("reply_read_and_X - large offset (%x << 32) "
3427                                  "used and we don't support 64 bit offsets.\n",
3428                                  (unsigned int)IVAL(req->vwv+10, 0) ));
3429                         END_PROFILE(SMBreadX);
3430                         reply_doserror(req, ERRDOS, ERRbadaccess);
3431                         return;
3432                 }
3433
3434 #endif /* LARGE_SMB_OFF_T */
3435
3436         }
3437
3438         if (is_locked(fsp, (uint32)req->smbpid, (uint64_t)smb_maxcnt,
3439                       (uint64_t)startpos, READ_LOCK)) {
3440                 END_PROFILE(SMBreadX);
3441                 reply_doserror(req, ERRDOS, ERRlock);
3442                 return;
3443         }
3444
3445         if (!big_readX &&
3446             schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) {
3447                 END_PROFILE(SMBreadX);
3448                 return;
3449         }
3450
3451         send_file_readX(conn, req, fsp, startpos, smb_maxcnt);
3452
3453         END_PROFILE(SMBreadX);
3454         return;
3455 }
3456
3457 /****************************************************************************
3458  Error replies to writebraw must have smb_wct == 1. Fix this up.
3459 ****************************************************************************/
3460
3461 void error_to_writebrawerr(struct smb_request *req)
3462 {
3463         uint8 *old_outbuf = req->outbuf;
3464
3465         reply_outbuf(req, 1, 0);
3466
3467         memcpy(req->outbuf, old_outbuf, smb_size);
3468         TALLOC_FREE(old_outbuf);
3469 }
3470
3471 /****************************************************************************
3472  Reply to a writebraw (core+ or LANMAN1.0 protocol).
3473 ****************************************************************************/
3474
3475 void reply_writebraw(struct smb_request *req)
3476 {
3477         connection_struct *conn = req->conn;
3478         char *buf = NULL;
3479         ssize_t nwritten=0;
3480         ssize_t total_written=0;
3481         size_t numtowrite=0;
3482         size_t tcount;
3483         SMB_OFF_T startpos;
3484         char *data=NULL;
3485         bool write_through;
3486         files_struct *fsp;
3487         NTSTATUS status;
3488
3489         START_PROFILE(SMBwritebraw);
3490
3491         /*
3492          * If we ever reply with an error, it must have the SMB command
3493          * type of SMBwritec, not SMBwriteBraw, as this tells the client
3494          * we're finished.
3495          */
3496         SCVAL(req->inbuf,smb_com,SMBwritec);
3497
3498         if (srv_is_signing_active()) {
3499                 END_PROFILE(SMBwritebraw);
3500                 exit_server_cleanly("reply_writebraw: SMB signing is active - "
3501                                 "raw reads/writes are disallowed.");
3502         }
3503
3504         if (req->wct < 12) {
3505                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3506                 error_to_writebrawerr(req);
3507                 END_PROFILE(SMBwritebraw);
3508                 return;
3509         }
3510
3511         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3512         if (!check_fsp(conn, req, fsp)) {
3513                 error_to_writebrawerr(req);
3514                 END_PROFILE(SMBwritebraw);
3515                 return;
3516         }
3517
3518         if (!CHECK_WRITE(fsp)) {
3519                 reply_doserror(req, ERRDOS, ERRbadaccess);
3520                 error_to_writebrawerr(req);
3521                 END_PROFILE(SMBwritebraw);
3522                 return;
3523         }
3524
3525         tcount = IVAL(req->vwv+1, 0);
3526         startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3527         write_through = BITSETW(req->vwv+7,0);
3528
3529         /* We have to deal with slightly different formats depending
3530                 on whether we are using the core+ or lanman1.0 protocol */
3531
3532         if(Protocol <= PROTOCOL_COREPLUS) {
3533                 numtowrite = SVAL(smb_buf(req->inbuf),-2);
3534                 data = smb_buf(req->inbuf);
3535         } else {
3536                 numtowrite = SVAL(req->vwv+10, 0);
3537                 data = smb_base(req->inbuf) + SVAL(req->vwv+11, 0);
3538         }
3539
3540         /* Ensure we don't write bytes past the end of this packet. */
3541         if (data + numtowrite > smb_base(req->inbuf) + smb_len(req->inbuf)) {
3542                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3543                 error_to_writebrawerr(req);
3544                 END_PROFILE(SMBwritebraw);
3545                 return;
3546         }
3547
3548         if (is_locked(fsp,(uint32)req->smbpid,(uint64_t)tcount,
3549                                 (uint64_t)startpos, WRITE_LOCK)) {
3550                 reply_doserror(req, ERRDOS, ERRlock);
3551                 error_to_writebrawerr(req);
3552                 END_PROFILE(SMBwritebraw);
3553                 return;
3554         }
3555
3556         if (numtowrite>0) {
3557                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
3558         }
3559
3560         DEBUG(3,("reply_writebraw: initial write fnum=%d start=%.0f num=%d "
3561                         "wrote=%d sync=%d\n",
3562                 fsp->fnum, (double)startpos, (int)numtowrite,
3563                 (int)nwritten, (int)write_through));
3564
3565         if (nwritten < (ssize_t)numtowrite)  {
3566                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3567                 error_to_writebrawerr(req);
3568                 END_PROFILE(SMBwritebraw);
3569                 return;
3570         }
3571
3572         total_written = nwritten;
3573
3574         /* Allocate a buffer of 64k + length. */
3575         buf = TALLOC_ARRAY(NULL, char, 65540);
3576         if (!buf) {
3577                 reply_doserror(req, ERRDOS, ERRnomem);
3578                 error_to_writebrawerr(req);
3579                 END_PROFILE(SMBwritebraw);
3580                 return;
3581         }
3582
3583         /* Return a SMBwritebraw message to the redirector to tell
3584          * it to send more bytes */
3585
3586         memcpy(buf, req->inbuf, smb_size);
3587         srv_set_message(buf,Protocol>PROTOCOL_COREPLUS?1:0,0,True);
3588         SCVAL(buf,smb_com,SMBwritebraw);
3589         SSVALS(buf,smb_vwv0,0xFFFF);
3590         show_msg(buf);
3591         if (!srv_send_smb(smbd_server_fd(),
3592                         buf,
3593                         IS_CONN_ENCRYPTED(conn))) {
3594                 exit_server_cleanly("reply_writebraw: srv_send_smb "
3595                         "failed.");
3596         }
3597
3598         /* Now read the raw data into the buffer and write it */
3599         status = read_smb_length(smbd_server_fd(), buf, SMB_SECONDARY_WAIT,
3600                                  &numtowrite);
3601         if (!NT_STATUS_IS_OK(status)) {
3602                 exit_server_cleanly("secondary writebraw failed");
3603         }
3604
3605         /* Set up outbuf to return the correct size */
3606         reply_outbuf(req, 1, 0);
3607
3608         if (numtowrite != 0) {
3609
3610                 if (numtowrite > 0xFFFF) {
3611                         DEBUG(0,("reply_writebraw: Oversize secondary write "
3612                                 "raw requested (%u). Terminating\n",
3613                                 (unsigned int)numtowrite ));
3614                         exit_server_cleanly("secondary writebraw failed");
3615                 }
3616
3617                 if (tcount > nwritten+numtowrite) {
3618                         DEBUG(3,("reply_writebraw: Client overestimated the "
3619                                 "write %d %d %d\n",
3620                                 (int)tcount,(int)nwritten,(int)numtowrite));
3621                 }
3622
3623                 status = read_data(smbd_server_fd(), buf+4, numtowrite);
3624
3625                 if (!NT_STATUS_IS_OK(status)) {
3626                         DEBUG(0,("reply_writebraw: Oversize secondary write "
3627                                  "raw read failed (%s). Terminating\n",
3628                                  nt_errstr(status)));
3629                         exit_server_cleanly("secondary writebraw failed");
3630                 }
3631
3632                 nwritten = write_file(req,fsp,buf+4,startpos+nwritten,numtowrite);
3633                 if (nwritten == -1) {
3634                         TALLOC_FREE(buf);
3635                         reply_unixerror(req, ERRHRD, ERRdiskfull);
3636                         error_to_writebrawerr(req);
3637                         END_PROFILE(SMBwritebraw);
3638                         return;
3639                 }
3640
3641                 if (nwritten < (ssize_t)numtowrite) {
3642                         SCVAL(req->outbuf,smb_rcls,ERRHRD);
3643                         SSVAL(req->outbuf,smb_err,ERRdiskfull);
3644                 }
3645
3646                 if (nwritten > 0) {
3647                         total_written += nwritten;
3648                 }
3649         }
3650
3651         TALLOC_FREE(buf);
3652         SSVAL(req->outbuf,smb_vwv0,total_written);
3653
3654         status = sync_file(conn, fsp, write_through);
3655         if (!NT_STATUS_IS_OK(status)) {
3656                 DEBUG(5,("reply_writebraw: sync_file for %s returned %s\n",
3657                         fsp->fsp_name, nt_errstr(status) ));
3658                 reply_nterror(req, status);
3659                 error_to_writebrawerr(req);
3660                 END_PROFILE(SMBwritebraw);
3661                 return;
3662         }
3663
3664         DEBUG(3,("reply_writebraw: secondart write fnum=%d start=%.0f num=%d "
3665                 "wrote=%d\n",
3666                 fsp->fnum, (double)startpos, (int)numtowrite,
3667                 (int)total_written));
3668
3669         /* We won't return a status if write through is not selected - this
3670          * follows what WfWg does */
3671         END_PROFILE(SMBwritebraw);
3672
3673         if (!write_through && total_written==tcount) {
3674
3675 #if RABBIT_PELLET_FIX
3676                 /*
3677                  * Fix for "rabbit pellet" mode, trigger an early TCP ack by
3678                  * sending a SMBkeepalive. Thanks to DaveCB at Sun for this.
3679                  * JRA.
3680                  */
3681                 if (!send_keepalive(smbd_server_fd())) {
3682                         exit_server_cleanly("reply_writebraw: send of "
3683                                 "keepalive failed");
3684                 }
3685 #endif
3686                 TALLOC_FREE(req->outbuf);
3687         }
3688         return;
3689 }
3690
3691 #undef DBGC_CLASS
3692 #define DBGC_CLASS DBGC_LOCKING
3693
3694 /****************************************************************************
3695  Reply to a writeunlock (core+).
3696 ****************************************************************************/
3697
3698 void reply_writeunlock(struct smb_request *req)
3699 {
3700         connection_struct *conn = req->conn;
3701         ssize_t nwritten = -1;
3702         size_t numtowrite;
3703         SMB_OFF_T startpos;
3704         const char *data;
3705         NTSTATUS status = NT_STATUS_OK;
3706         files_struct *fsp;
3707
3708         START_PROFILE(SMBwriteunlock);
3709
3710         if (req->wct < 5) {
3711                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3712                 END_PROFILE(SMBwriteunlock);
3713                 return;
3714         }
3715
3716         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3717
3718         if (!check_fsp(conn, req, fsp)) {
3719                 END_PROFILE(SMBwriteunlock);
3720                 return;
3721         }
3722
3723         if (!CHECK_WRITE(fsp)) {
3724                 reply_doserror(req, ERRDOS,ERRbadaccess);
3725                 END_PROFILE(SMBwriteunlock);
3726                 return;
3727         }
3728
3729         numtowrite = SVAL(req->vwv+1, 0);
3730         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3731         data = (const char *)req->buf + 3;
3732
3733         if (numtowrite
3734             && is_locked(fsp, (uint32)req->smbpid, (uint64_t)numtowrite,
3735                          (uint64_t)startpos, WRITE_LOCK)) {
3736                 reply_doserror(req, ERRDOS, ERRlock);
3737                 END_PROFILE(SMBwriteunlock);
3738                 return;
3739         }
3740
3741         /* The special X/Open SMB protocol handling of
3742            zero length writes is *NOT* done for
3743            this call */
3744         if(numtowrite == 0) {
3745                 nwritten = 0;
3746         } else {
3747                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
3748         }
3749
3750         status = sync_file(conn, fsp, False /* write through */);
3751         if (!NT_STATUS_IS_OK(status)) {
3752                 DEBUG(5,("reply_writeunlock: sync_file for %s returned %s\n",
3753                         fsp->fsp_name, nt_errstr(status) ));
3754                 reply_nterror(req, status);
3755                 END_PROFILE(SMBwriteunlock);
3756                 return;
3757         }
3758
3759         if(((nwritten < numtowrite) && (numtowrite != 0))||(nwritten < 0)) {
3760                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3761                 END_PROFILE(SMBwriteunlock);
3762                 return;
3763         }
3764
3765         if (numtowrite) {
3766                 status = do_unlock(smbd_messaging_context(),
3767                                 fsp,
3768                                 req->smbpid,
3769                                 (uint64_t)numtowrite,
3770                                 (uint64_t)startpos,
3771                                 WINDOWS_LOCK);
3772
3773                 if (NT_STATUS_V(status)) {
3774                         reply_nterror(req, status);
3775                         END_PROFILE(SMBwriteunlock);
3776                         return;
3777                 }
3778         }
3779
3780         reply_outbuf(req, 1, 0);
3781
3782         SSVAL(req->outbuf,smb_vwv0,nwritten);
3783
3784         DEBUG(3,("writeunlock fnum=%d num=%d wrote=%d\n",
3785                  fsp->fnum, (int)numtowrite, (int)nwritten));
3786
3787         END_PROFILE(SMBwriteunlock);
3788         return;
3789 }
3790
3791 #undef DBGC_CLASS
3792 #define DBGC_CLASS DBGC_ALL
3793
3794 /****************************************************************************
3795  Reply to a write.
3796 ****************************************************************************/
3797
3798 void reply_write(struct smb_request *req)
3799 {
3800         connection_struct *conn = req->conn;
3801         size_t numtowrite;
3802         ssize_t nwritten = -1;
3803         SMB_OFF_T startpos;
3804         const char *data;
3805         files_struct *fsp;
3806         NTSTATUS status;
3807
3808         START_PROFILE(SMBwrite);
3809
3810         if (req->wct < 5) {
3811                 END_PROFILE(SMBwrite);
3812                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3813                 return;
3814         }
3815
3816         /* If it's an IPC, pass off the pipe handler. */
3817         if (IS_IPC(conn)) {
3818                 reply_pipe_write(req);
3819                 END_PROFILE(SMBwrite);
3820                 return;
3821         }
3822
3823         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
3824
3825         if (!check_fsp(conn, req, fsp)) {
3826                 END_PROFILE(SMBwrite);
3827                 return;
3828         }
3829
3830         if (!CHECK_WRITE(fsp)) {
3831                 reply_doserror(req, ERRDOS, ERRbadaccess);
3832                 END_PROFILE(SMBwrite);
3833                 return;
3834         }
3835
3836         numtowrite = SVAL(req->vwv+1, 0);
3837         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
3838         data = (const char *)req->buf + 3;
3839
3840         if (is_locked(fsp, (uint32)req->smbpid, (uint64_t)numtowrite,
3841                       (uint64_t)startpos, WRITE_LOCK)) {
3842                 reply_doserror(req, ERRDOS, ERRlock);
3843                 END_PROFILE(SMBwrite);
3844                 return;
3845         }
3846
3847         /*
3848          * X/Open SMB protocol says that if smb_vwv1 is
3849          * zero then the file size should be extended or
3850          * truncated to the size given in smb_vwv[2-3].
3851          */
3852
3853         if(numtowrite == 0) {
3854                 /*
3855                  * This is actually an allocate call, and set EOF. JRA.
3856                  */
3857                 nwritten = vfs_allocate_file_space(fsp, (SMB_OFF_T)startpos);
3858                 if (nwritten < 0) {
3859                         reply_nterror(req, NT_STATUS_DISK_FULL);
3860                         END_PROFILE(SMBwrite);
3861                         return;
3862                 }
3863                 nwritten = vfs_set_filelen(fsp, (SMB_OFF_T)startpos);
3864                 if (nwritten < 0) {
3865                         reply_nterror(req, NT_STATUS_DISK_FULL);
3866                         END_PROFILE(SMBwrite);
3867                         return;
3868                 }
3869                 trigger_write_time_update_immediate(fsp);
3870         } else {
3871                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
3872         }
3873
3874         status = sync_file(conn, fsp, False);
3875         if (!NT_STATUS_IS_OK(status)) {
3876                 DEBUG(5,("reply_write: sync_file for %s returned %s\n",
3877                         fsp->fsp_name, nt_errstr(status) ));
3878                 reply_nterror(req, status);
3879                 END_PROFILE(SMBwrite);
3880                 return;
3881         }
3882
3883         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3884                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3885                 END_PROFILE(SMBwrite);
3886                 return;
3887         }
3888
3889         reply_outbuf(req, 1, 0);
3890
3891         SSVAL(req->outbuf,smb_vwv0,nwritten);
3892
3893         if (nwritten < (ssize_t)numtowrite) {
3894                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
3895                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
3896         }
3897
3898         DEBUG(3,("write fnum=%d num=%d wrote=%d\n", fsp->fnum, (int)numtowrite, (int)nwritten));
3899
3900         END_PROFILE(SMBwrite);
3901         return;
3902 }
3903
3904 /****************************************************************************
3905  Ensure a buffer is a valid writeX for recvfile purposes.
3906 ****************************************************************************/
3907
3908 #define STANDARD_WRITE_AND_X_HEADER_SIZE (smb_size - 4 + /* basic header */ \
3909                                                 (2*14) + /* word count (including bcc) */ \
3910                                                 1 /* pad byte */)
3911
3912 bool is_valid_writeX_buffer(const uint8_t *inbuf)
3913 {
3914         size_t numtowrite;
3915         connection_struct *conn = NULL;
3916         unsigned int doff = 0;
3917         size_t len = smb_len_large(inbuf);
3918
3919         if (is_encrypted_packet(inbuf)) {
3920                 /* Can't do this on encrypted
3921                  * connections. */
3922                 return false;
3923         }
3924
3925         if (CVAL(inbuf,smb_com) != SMBwriteX) {
3926                 return false;
3927         }
3928
3929         if (CVAL(inbuf,smb_vwv0) != 0xFF ||
3930                         CVAL(inbuf,smb_wct) != 14) {
3931                 DEBUG(10,("is_valid_writeX_buffer: chained or "
3932                         "invalid word length.\n"));
3933                 return false;
3934         }
3935
3936         conn = conn_find(SVAL(inbuf, smb_tid));
3937         if (conn == NULL) {
3938                 DEBUG(10,("is_valid_writeX_buffer: bad tid\n"));
3939                 return false;
3940         }
3941         if (IS_IPC(conn)) {
3942                 DEBUG(10,("is_valid_writeX_buffer: IPC$ tid\n"));
3943                 return false;
3944         }
3945         if (IS_PRINT(conn)) {
3946                 DEBUG(10,("is_valid_writeX_buffer: printing tid\n"));
3947                 return false;
3948         }
3949         doff = SVAL(inbuf,smb_vwv11);
3950
3951         numtowrite = SVAL(inbuf,smb_vwv10);
3952
3953         if (len > doff && len - doff > 0xFFFF) {
3954                 numtowrite |= (((size_t)SVAL(inbuf,smb_vwv9))<<16);
3955         }
3956
3957         if (numtowrite == 0) {
3958                 DEBUG(10,("is_valid_writeX_buffer: zero write\n"));
3959                 return false;
3960         }
3961
3962         /* Ensure the sizes match up. */
3963         if (doff < STANDARD_WRITE_AND_X_HEADER_SIZE) {
3964                 /* no pad byte...old smbclient :-( */
3965                 DEBUG(10,("is_valid_writeX_buffer: small doff %u (min %u)\n",
3966                         (unsigned int)doff,
3967                         (unsigned int)STANDARD_WRITE_AND_X_HEADER_SIZE));
3968                 return false;
3969         }
3970
3971         if (len - doff != numtowrite) {
3972                 DEBUG(10,("is_valid_writeX_buffer: doff mismatch "
3973                         "len = %u, doff = %u, numtowrite = %u\n",
3974                         (unsigned int)len,
3975                         (unsigned int)doff,
3976                         (unsigned int)numtowrite ));
3977                 return false;
3978         }
3979
3980         DEBUG(10,("is_valid_writeX_buffer: true "
3981                 "len = %u, doff = %u, numtowrite = %u\n",
3982                 (unsigned int)len,
3983                 (unsigned int)doff,
3984                 (unsigned int)numtowrite ));
3985
3986         return true;
3987 }
3988
3989 /****************************************************************************
3990  Reply to a write and X.
3991 ****************************************************************************/
3992
3993 void reply_write_and_X(struct smb_request *req)
3994 {
3995         connection_struct *conn = req->conn;
3996         files_struct *fsp;
3997         SMB_OFF_T startpos;
3998         size_t numtowrite;
3999         bool write_through;
4000         ssize_t nwritten;
4001         unsigned int smb_doff;
4002         unsigned int smblen;
4003         char *data;
4004         NTSTATUS status;
4005
4006         START_PROFILE(SMBwriteX);
4007
4008         if ((req->wct != 12) && (req->wct != 14)) {
4009                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4010                 END_PROFILE(SMBwriteX);
4011                 return;
4012         }
4013
4014         numtowrite = SVAL(req->vwv+10, 0);
4015         smb_doff = SVAL(req->vwv+11, 0);
4016         smblen = smb_len(req->inbuf);
4017
4018         if (req->unread_bytes > 0xFFFF ||
4019                         (smblen > smb_doff &&
4020                                 smblen - smb_doff > 0xFFFF)) {
4021                 numtowrite |= (((size_t)SVAL(req->vwv+9, 0))<<16);
4022         }
4023
4024         if (req->unread_bytes) {
4025                 /* Can't do a recvfile write on IPC$ */
4026                 if (IS_IPC(conn)) {
4027                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4028                         END_PROFILE(SMBwriteX);
4029                         return;
4030                 }
4031                 if (numtowrite != req->unread_bytes) {
4032                         reply_doserror(req, ERRDOS, ERRbadmem);
4033                         END_PROFILE(SMBwriteX);
4034                         return;
4035                 }
4036         } else {
4037                 if (smb_doff > smblen || smb_doff + numtowrite < numtowrite ||
4038                                 smb_doff + numtowrite > smblen) {
4039                         reply_doserror(req, ERRDOS, ERRbadmem);
4040                         END_PROFILE(SMBwriteX);
4041                         return;
4042                 }
4043         }
4044
4045         /* If it's an IPC, pass off the pipe handler. */
4046         if (IS_IPC(conn)) {
4047                 if (req->unread_bytes) {
4048                         reply_doserror(req, ERRDOS, ERRbadmem);
4049                         END_PROFILE(SMBwriteX);
4050                         return;
4051                 }
4052                 reply_pipe_write_and_X(req);
4053                 END_PROFILE(SMBwriteX);
4054                 return;
4055         }
4056
4057         fsp = file_fsp(req, SVAL(req->vwv+2, 0));
4058         startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
4059         write_through = BITSETW(req->vwv+7,0);
4060
4061         if (!check_fsp(conn, req, fsp)) {
4062                 END_PROFILE(SMBwriteX);
4063                 return;
4064         }
4065
4066         if (!CHECK_WRITE(fsp)) {
4067                 reply_doserror(req, ERRDOS, ERRbadaccess);
4068                 END_PROFILE(SMBwriteX);
4069                 return;
4070         }
4071
4072         data = smb_base(req->inbuf) + smb_doff;
4073
4074         if(req->wct == 14) {
4075 #ifdef LARGE_SMB_OFF_T
4076                 /*
4077                  * This is a large offset (64 bit) write.
4078                  */
4079                 startpos |= (((SMB_OFF_T)IVAL(req->vwv+12, 0)) << 32);
4080
4081 #else /* !LARGE_SMB_OFF_T */
4082
4083                 /*
4084                  * Ensure we haven't been sent a >32 bit offset.
4085                  */
4086
4087                 if(IVAL(req->vwv+12, 0) != 0) {
4088                         DEBUG(0,("reply_write_and_X - large offset (%x << 32) "
4089                                  "used and we don't support 64 bit offsets.\n",
4090                                  (unsigned int)IVAL(req->vwv+12, 0) ));
4091                         reply_doserror(req, ERRDOS, ERRbadaccess);
4092                         END_PROFILE(SMBwriteX);
4093                         return;
4094                 }
4095
4096 #endif /* LARGE_SMB_OFF_T */
4097         }
4098
4099         if (is_locked(fsp,(uint32)req->smbpid,
4100                       (uint64_t)numtowrite,
4101                       (uint64_t)startpos, WRITE_LOCK)) {
4102                 reply_doserror(req, ERRDOS, ERRlock);
4103                 END_PROFILE(SMBwriteX);
4104                 return;
4105         }
4106
4107         /* X/Open SMB protocol says that, unlike SMBwrite
4108         if the length is zero then NO truncation is
4109         done, just a write of zero. To truncate a file,
4110         use SMBwrite. */
4111
4112         if(numtowrite == 0) {
4113                 nwritten = 0;
4114         } else {
4115
4116                 if ((req->unread_bytes == 0) &&
4117                     schedule_aio_write_and_X(conn, req, fsp, data, startpos,
4118                                              numtowrite)) {
4119                         END_PROFILE(SMBwriteX);
4120                         return;
4121                 }
4122
4123                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4124         }
4125
4126         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
4127                 reply_unixerror(req, ERRHRD, ERRdiskfull);
4128                 END_PROFILE(SMBwriteX);
4129                 return;
4130         }
4131
4132         reply_outbuf(req, 6, 0);
4133         SSVAL(req->outbuf,smb_vwv2,nwritten);
4134         SSVAL(req->outbuf,smb_vwv4,nwritten>>16);
4135
4136         if (nwritten < (ssize_t)numtowrite) {
4137                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
4138                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
4139         }
4140
4141         DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
4142                 fsp->fnum, (int)numtowrite, (int)nwritten));
4143
4144         status = sync_file(conn, fsp, write_through);
4145         if (!NT_STATUS_IS_OK(status)) {
4146                 DEBUG(5,("reply_write_and_X: sync_file for %s returned %s\n",
4147                         fsp->fsp_name, nt_errstr(status) ));
4148                 reply_nterror(req, status);
4149                 END_PROFILE(SMBwriteX);
4150                 return;
4151         }
4152
4153         END_PROFILE(SMBwriteX);
4154         chain_reply(req);
4155         return;
4156 }
4157
4158 /****************************************************************************
4159  Reply to a lseek.
4160 ****************************************************************************/
4161
4162 void reply_lseek(struct smb_request *req)
4163 {
4164         connection_struct *conn = req->conn;
4165         SMB_OFF_T startpos;
4166         SMB_OFF_T res= -1;
4167         int mode,umode;
4168         files_struct *fsp;
4169
4170         START_PROFILE(SMBlseek);
4171
4172         if (req->wct < 4) {
4173                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4174                 END_PROFILE(SMBlseek);
4175                 return;
4176         }
4177
4178         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4179
4180         if (!check_fsp(conn, req, fsp)) {
4181                 return;
4182         }
4183
4184         flush_write_cache(fsp, SEEK_FLUSH);
4185
4186         mode = SVAL(req->vwv+1, 0) & 3;
4187         /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
4188         startpos = (SMB_OFF_T)IVALS(req->vwv+2, 0);
4189
4190         switch (mode) {
4191                 case 0:
4192                         umode = SEEK_SET;
4193                         res = startpos;
4194                         break;
4195                 case 1:
4196                         umode = SEEK_CUR;
4197                         res = fsp->fh->pos + startpos;
4198                         break;
4199                 case 2:
4200                         umode = SEEK_END;
4201                         break;
4202                 default:
4203                         umode = SEEK_SET;
4204                         res = startpos;
4205                         break;
4206         }
4207
4208         if (umode == SEEK_END) {
4209                 if((res = SMB_VFS_LSEEK(fsp,startpos,umode)) == -1) {
4210                         if(errno == EINVAL) {
4211                                 SMB_OFF_T current_pos = startpos;
4212                                 SMB_STRUCT_STAT sbuf;
4213
4214                                 if(SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
4215                                         reply_unixerror(req, ERRDOS,
4216                                                         ERRnoaccess);
4217                                         END_PROFILE(SMBlseek);
4218                                         return;
4219                                 }
4220
4221                                 current_pos += sbuf.st_size;
4222                                 if(current_pos < 0)
4223                                         res = SMB_VFS_LSEEK(fsp,0,SEEK_SET);
4224                         }
4225                 }
4226
4227                 if(res == -1) {
4228                         reply_unixerror(req, ERRDOS, ERRnoaccess);
4229                         END_PROFILE(SMBlseek);
4230                         return;
4231                 }
4232         }
4233
4234         fsp->fh->pos = res;
4235
4236         reply_outbuf(req, 2, 0);
4237         SIVAL(req->outbuf,smb_vwv0,res);
4238
4239         DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
4240                 fsp->fnum, (double)startpos, (double)res, mode));
4241
4242         END_PROFILE(SMBlseek);
4243         return;
4244 }
4245
4246 /****************************************************************************
4247  Reply to a flush.
4248 ****************************************************************************/
4249
4250 void reply_flush(struct smb_request *req)
4251 {
4252         connection_struct *conn = req->conn;
4253         uint16 fnum;
4254         files_struct *fsp;
4255
4256         START_PROFILE(SMBflush);
4257
4258         if (req->wct < 1) {
4259                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4260                 return;
4261         }
4262
4263         fnum = SVAL(req->vwv+0, 0);
4264         fsp = file_fsp(req, fnum);
4265
4266         if ((fnum != 0xFFFF) && !check_fsp(conn, req, fsp)) {
4267                 return;
4268         }
4269
4270         if (!fsp) {
4271                 file_sync_all(conn);
4272         } else {
4273                 NTSTATUS status = sync_file(conn, fsp, True);
4274                 if (!NT_STATUS_IS_OK(status)) {
4275                         DEBUG(5,("reply_flush: sync_file for %s returned %s\n",
4276                                 fsp->fsp_name, nt_errstr(status) ));
4277                         reply_nterror(req, status);
4278                         END_PROFILE(SMBflush);
4279                         return;
4280                 }
4281         }
4282
4283         reply_outbuf(req, 0, 0);
4284
4285         DEBUG(3,("flush\n"));
4286         END_PROFILE(SMBflush);
4287         return;
4288 }
4289
4290 /****************************************************************************
4291  Reply to a exit.
4292  conn POINTER CAN BE NULL HERE !
4293 ****************************************************************************/
4294
4295 void reply_exit(struct smb_request *req)
4296 {
4297         START_PROFILE(SMBexit);
4298
4299         file_close_pid(req->smbpid, req->vuid);
4300
4301         reply_outbuf(req, 0, 0);
4302
4303         DEBUG(3,("exit\n"));
4304
4305         END_PROFILE(SMBexit);
4306         return;
4307 }
4308
4309 /****************************************************************************
4310  Reply to a close - has to deal with closing a directory opened by NT SMB's.
4311 ****************************************************************************/
4312
4313 void reply_close(struct smb_request *req)
4314 {
4315         connection_struct *conn = req->conn;
4316         NTSTATUS status = NT_STATUS_OK;
4317         files_struct *fsp = NULL;
4318         START_PROFILE(SMBclose);
4319
4320         if (req->wct < 3) {
4321                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4322                 END_PROFILE(SMBclose);
4323                 return;
4324         }
4325
4326         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4327
4328         /*
4329          * We can only use check_fsp if we know it's not a directory.
4330          */
4331
4332         if(!fsp || (fsp->conn != conn) || (fsp->vuid != req->vuid)) {
4333                 reply_doserror(req, ERRDOS, ERRbadfid);
4334                 END_PROFILE(SMBclose);
4335                 return;
4336         }
4337
4338         if(fsp->is_directory) {
4339                 /*
4340                  * Special case - close NT SMB directory handle.
4341                  */
4342                 DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
4343                 status = close_file(req, fsp, NORMAL_CLOSE);
4344         } else {
4345                 time_t t;
4346                 /*
4347                  * Close ordinary file.
4348                  */
4349
4350                 DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
4351                          fsp->fh->fd, fsp->fnum,
4352                          conn->num_files_open));
4353
4354                 /*
4355                  * Take care of any time sent in the close.
4356                  */
4357
4358                 t = srv_make_unix_date3(req->vwv+1);
4359                 set_close_write_time(fsp, convert_time_t_to_timespec(t));
4360
4361                 /*
4362                  * close_file() returns the unix errno if an error
4363                  * was detected on close - normally this is due to
4364                  * a disk full error. If not then it was probably an I/O error.
4365                  */
4366
4367                 status = close_file(req, fsp, NORMAL_CLOSE);
4368         }
4369
4370         if (!NT_STATUS_IS_OK(status)) {
4371                 reply_nterror(req, status);
4372                 END_PROFILE(SMBclose);
4373                 return;
4374         }
4375
4376         reply_outbuf(req, 0, 0);
4377         END_PROFILE(SMBclose);
4378         return;
4379 }
4380
4381 /****************************************************************************
4382  Reply to a writeclose (Core+ protocol).
4383 ****************************************************************************/
4384
4385 void reply_writeclose(struct smb_request *req)
4386 {
4387         connection_struct *conn = req->conn;
4388         size_t numtowrite;
4389         ssize_t nwritten = -1;
4390         NTSTATUS close_status = NT_STATUS_OK;
4391         SMB_OFF_T startpos;
4392         const char *data;
4393         struct timespec mtime;
4394         files_struct *fsp;
4395
4396         START_PROFILE(SMBwriteclose);
4397
4398         if (req->wct < 6) {
4399                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4400                 END_PROFILE(SMBwriteclose);
4401                 return;
4402         }
4403
4404         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4405
4406         if (!check_fsp(conn, req, fsp)) {
4407                 END_PROFILE(SMBwriteclose);
4408                 return;
4409         }
4410         if (!CHECK_WRITE(fsp)) {
4411                 reply_doserror(req, ERRDOS,ERRbadaccess);
4412                 END_PROFILE(SMBwriteclose);
4413                 return;
4414         }
4415
4416         numtowrite = SVAL(req->vwv+1, 0);
4417         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4418         mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+4));
4419         data = (const char *)req->buf + 1;
4420
4421         if (numtowrite
4422             && is_locked(fsp, (uint32)req->smbpid, (uint64_t)numtowrite,
4423                          (uint64_t)startpos, WRITE_LOCK)) {
4424                 reply_doserror(req, ERRDOS,ERRlock);
4425                 END_PROFILE(SMBwriteclose);
4426                 return;
4427         }
4428
4429         nwritten = write_file(req,fsp,data,startpos,numtowrite);
4430
4431         set_close_write_time(fsp, mtime);
4432
4433         /*
4434          * More insanity. W2K only closes the file if writelen > 0.
4435          * JRA.
4436          */
4437
4438         if (numtowrite) {
4439                 DEBUG(3,("reply_writeclose: zero length write doesn't close file %s\n",
4440                         fsp->fsp_name ));
4441                 close_status = close_file(req, fsp, NORMAL_CLOSE);
4442         }
4443
4444         DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
4445                  fsp->fnum, (int)numtowrite, (int)nwritten,
4446                  conn->num_files_open));
4447
4448         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
4449                 reply_doserror(req, ERRHRD, ERRdiskfull);
4450                 END_PROFILE(SMBwriteclose);
4451                 return;
4452         }
4453
4454         if(!NT_STATUS_IS_OK(close_status)) {
4455                 reply_nterror(req, close_status);
4456                 END_PROFILE(SMBwriteclose);
4457                 return;
4458         }
4459
4460         reply_outbuf(req, 1, 0);
4461
4462         SSVAL(req->outbuf,smb_vwv0,nwritten);
4463         END_PROFILE(SMBwriteclose);
4464         return;
4465 }
4466
4467 #undef DBGC_CLASS
4468 #define DBGC_CLASS DBGC_LOCKING
4469
4470 /****************************************************************************
4471  Reply to a lock.
4472 ****************************************************************************/
4473
4474 void reply_lock(struct smb_request *req)
4475 {
4476         connection_struct *conn = req->conn;
4477         uint64_t count,offset;
4478         NTSTATUS status;
4479         files_struct *fsp;
4480         struct byte_range_lock *br_lck = NULL;
4481
4482         START_PROFILE(SMBlock);
4483
4484         if (req->wct < 5) {
4485                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4486                 END_PROFILE(SMBlock);
4487                 return;
4488         }
4489
4490         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4491
4492         if (!check_fsp(conn, req, fsp)) {
4493                 END_PROFILE(SMBlock);
4494                 return;
4495         }
4496
4497         release_level_2_oplocks_on_change(fsp);
4498
4499         count = (uint64_t)IVAL(req->vwv+1, 0);
4500         offset = (uint64_t)IVAL(req->vwv+3, 0);
4501
4502         DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4503                  fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
4504
4505         br_lck = do_lock(smbd_messaging_context(),
4506                         fsp,
4507                         req->smbpid,
4508                         count,
4509                         offset,
4510                         WRITE_LOCK,
4511                         WINDOWS_LOCK,
4512                         False, /* Non-blocking lock. */
4513                         &status,
4514                         NULL);
4515
4516         TALLOC_FREE(br_lck);
4517
4518         if (NT_STATUS_V(status)) {
4519                 reply_nterror(req, status);
4520                 END_PROFILE(SMBlock);
4521                 return;
4522         }
4523
4524         reply_outbuf(req, 0, 0);
4525
4526         END_PROFILE(SMBlock);
4527         return;
4528 }
4529
4530 /****************************************************************************
4531  Reply to a unlock.
4532 ****************************************************************************/
4533
4534 void reply_unlock(struct smb_request *req)
4535 {
4536         connection_struct *conn = req->conn;
4537         uint64_t count,offset;
4538         NTSTATUS status;
4539         files_struct *fsp;
4540
4541         START_PROFILE(SMBunlock);
4542
4543         if (req->wct < 5) {
4544                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4545                 END_PROFILE(SMBunlock);
4546                 return;
4547         }
4548
4549         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4550
4551         if (!check_fsp(conn, req, fsp)) {
4552                 END_PROFILE(SMBunlock);
4553                 return;
4554         }
4555
4556         count = (uint64_t)IVAL(req->vwv+1, 0);
4557         offset = (uint64_t)IVAL(req->vwv+3, 0);
4558
4559         status = do_unlock(smbd_messaging_context(),
4560                         fsp,
4561                         req->smbpid,
4562                         count,
4563                         offset,
4564                         WINDOWS_LOCK);
4565
4566         if (NT_STATUS_V(status)) {
4567                 reply_nterror(req, status);
4568                 END_PROFILE(SMBunlock);
4569                 return;
4570         }
4571
4572         DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4573                     fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
4574
4575         reply_outbuf(req, 0, 0);
4576
4577         END_PROFILE(SMBunlock);
4578         return;
4579 }
4580
4581 #undef DBGC_CLASS
4582 #define DBGC_CLASS DBGC_ALL
4583
4584 /****************************************************************************
4585  Reply to a tdis.
4586  conn POINTER CAN BE NULL HERE !
4587 ****************************************************************************/
4588
4589 void reply_tdis(struct smb_request *req)
4590 {
4591         connection_struct *conn = req->conn;
4592         START_PROFILE(SMBtdis);
4593
4594         if (!conn) {
4595                 DEBUG(4,("Invalid connection in tdis\n"));
4596                 reply_doserror(req, ERRSRV, ERRinvnid);
4597                 END_PROFILE(SMBtdis);
4598                 return;
4599         }
4600
4601         conn->used = False;
4602
4603         close_cnum(conn,req->vuid);
4604         req->conn = NULL;
4605
4606         reply_outbuf(req, 0, 0);
4607         END_PROFILE(SMBtdis);
4608         return;
4609 }
4610
4611 /****************************************************************************
4612  Reply to a echo.
4613  conn POINTER CAN BE NULL HERE !
4614 ****************************************************************************/
4615
4616 void reply_echo(struct smb_request *req)
4617 {
4618         connection_struct *conn = req->conn;
4619         int smb_reverb;
4620         int seq_num;
4621
4622         START_PROFILE(SMBecho);
4623
4624         if (req->wct < 1) {
4625                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4626                 END_PROFILE(SMBecho);
4627                 return;
4628         }
4629
4630         smb_reverb = SVAL(req->vwv+0, 0);
4631
4632         reply_outbuf(req, 1, req->buflen);
4633
4634         /* copy any incoming data back out */
4635         if (req->buflen > 0) {
4636                 memcpy(smb_buf(req->outbuf), req->buf, req->buflen);
4637         }
4638
4639         if (smb_reverb > 100) {
4640                 DEBUG(0,("large reverb (%d)?? Setting to 100\n",smb_reverb));
4641                 smb_reverb = 100;
4642         }
4643
4644         for (seq_num =1 ; seq_num <= smb_reverb ; seq_num++) {
4645                 SSVAL(req->outbuf,smb_vwv0,seq_num);
4646
4647                 show_msg((char *)req->outbuf);
4648                 if (!srv_send_smb(smbd_server_fd(),
4649                                 (char *)req->outbuf,
4650                                 IS_CONN_ENCRYPTED(conn)||req->encrypted))
4651                         exit_server_cleanly("reply_echo: srv_send_smb failed.");
4652         }
4653
4654         DEBUG(3,("echo %d times\n", smb_reverb));
4655
4656         TALLOC_FREE(req->outbuf);
4657
4658         END_PROFILE(SMBecho);
4659         return;
4660 }
4661
4662 /****************************************************************************
4663  Reply to a printopen.
4664 ****************************************************************************/
4665
4666 void reply_printopen(struct smb_request *req)
4667 {
4668         connection_struct *conn = req->conn;
4669         files_struct *fsp;
4670         SMB_STRUCT_STAT sbuf;
4671         NTSTATUS status;
4672
4673         START_PROFILE(SMBsplopen);
4674
4675         if (req->wct < 2) {
4676                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4677                 END_PROFILE(SMBsplopen);
4678                 return;
4679         }
4680
4681         if (!CAN_PRINT(conn)) {
4682                 reply_doserror(req, ERRDOS, ERRnoaccess);
4683                 END_PROFILE(SMBsplopen);
4684                 return;
4685         }
4686
4687         status = file_new(req, conn, &fsp);
4688         if(!NT_STATUS_IS_OK(status)) {
4689                 reply_nterror(req, status);
4690                 END_PROFILE(SMBsplopen);
4691                 return;
4692         }
4693
4694         /* Open for exclusive use, write only. */
4695         status = print_fsp_open(req, conn, NULL, req->vuid, fsp, &sbuf);
4696
4697         if (!NT_STATUS_IS_OK(status)) {
4698                 reply_nterror(req, status);
4699                 END_PROFILE(SMBsplopen);
4700                 return;
4701         }
4702
4703         reply_outbuf(req, 1, 0);
4704         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
4705
4706         DEBUG(3,("openprint fd=%d fnum=%d\n",
4707                  fsp->fh->fd, fsp->fnum));
4708
4709         END_PROFILE(SMBsplopen);
4710         return;
4711 }
4712
4713 /****************************************************************************
4714  Reply to a printclose.
4715 ****************************************************************************/
4716
4717 void reply_printclose(struct smb_request *req)
4718 {
4719         connection_struct *conn = req->conn;
4720         files_struct *fsp;
4721         NTSTATUS status;
4722
4723         START_PROFILE(SMBsplclose);
4724
4725         if (req->wct < 1) {
4726                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4727                 END_PROFILE(SMBsplclose);
4728                 return;
4729         }
4730
4731         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4732
4733         if (!check_fsp(conn, req, fsp)) {
4734                 END_PROFILE(SMBsplclose);
4735                 return;
4736         }
4737
4738         if (!CAN_PRINT(conn)) {
4739                 reply_nterror(req, NT_STATUS_DOS(ERRSRV, ERRerror));
4740                 END_PROFILE(SMBsplclose);
4741                 return;
4742         }
4743
4744         DEBUG(3,("printclose fd=%d fnum=%d\n",
4745                  fsp->fh->fd,fsp->fnum));
4746
4747         status = close_file(req, fsp, NORMAL_CLOSE);
4748
4749         if(!NT_STATUS_IS_OK(status)) {
4750                 reply_nterror(req, status);
4751                 END_PROFILE(SMBsplclose);
4752                 return;
4753         }
4754
4755         reply_outbuf(req, 0, 0);
4756
4757         END_PROFILE(SMBsplclose);
4758         return;
4759 }
4760
4761 /****************************************************************************
4762  Reply to a printqueue.
4763 ****************************************************************************/
4764
4765 void reply_printqueue(struct smb_request *req)
4766 {
4767         connection_struct *conn = req->conn;
4768         int max_count;
4769         int start_index;
4770
4771         START_PROFILE(SMBsplretq);
4772
4773         if (req->wct < 2) {
4774                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4775                 END_PROFILE(SMBsplretq);
4776                 return;
4777         }
4778
4779         max_count = SVAL(req->vwv+0, 0);
4780         start_index = SVAL(req->vwv+1, 0);
4781
4782         /* we used to allow the client to get the cnum wrong, but that
4783            is really quite gross and only worked when there was only
4784            one printer - I think we should now only accept it if they
4785            get it right (tridge) */
4786         if (!CAN_PRINT(conn)) {
4787                 reply_doserror(req, ERRDOS, ERRnoaccess);
4788                 END_PROFILE(SMBsplretq);
4789                 return;
4790         }
4791
4792         reply_outbuf(req, 2, 3);
4793         SSVAL(req->outbuf,smb_vwv0,0);
4794         SSVAL(req->outbuf,smb_vwv1,0);
4795         SCVAL(smb_buf(req->outbuf),0,1);
4796         SSVAL(smb_buf(req->outbuf),1,0);
4797
4798         DEBUG(3,("printqueue start_index=%d max_count=%d\n",
4799                  start_index, max_count));
4800
4801         {
4802                 print_queue_struct *queue = NULL;
4803                 print_status_struct status;
4804                 int count = print_queue_status(SNUM(conn), &queue, &status);
4805                 int num_to_get = ABS(max_count);
4806                 int first = (max_count>0?start_index:start_index+max_count+1);
4807                 int i;
4808
4809                 if (first >= count)
4810                         num_to_get = 0;
4811                 else
4812                         num_to_get = MIN(num_to_get,count-first);
4813
4814
4815                 for (i=first;i<first+num_to_get;i++) {
4816                         char blob[28];
4817                         char *p = blob;
4818
4819                         srv_put_dos_date2(p,0,queue[i].time);
4820                         SCVAL(p,4,(queue[i].status==LPQ_PRINTING?2:3));
4821                         SSVAL(p,5, queue[i].job);
4822                         SIVAL(p,7,queue[i].size);
4823                         SCVAL(p,11,0);
4824                         srvstr_push(blob, req->flags2, p+12,
4825                                     queue[i].fs_user, 16, STR_ASCII);
4826
4827                         if (message_push_blob(
4828                                     &req->outbuf,
4829                                     data_blob_const(
4830                                             blob, sizeof(blob))) == -1) {
4831                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
4832                                 END_PROFILE(SMBsplretq);
4833                                 return;
4834                         }
4835                 }
4836
4837                 if (count > 0) {
4838                         SSVAL(req->outbuf,smb_vwv0,count);
4839                         SSVAL(req->outbuf,smb_vwv1,
4840                               (max_count>0?first+count:first-1));
4841                         SCVAL(smb_buf(req->outbuf),0,1);
4842                         SSVAL(smb_buf(req->outbuf),1,28*count);
4843                 }
4844
4845                 SAFE_FREE(queue);
4846
4847                 DEBUG(3,("%d entries returned in queue\n",count));
4848         }
4849
4850         END_PROFILE(SMBsplretq);
4851         return;
4852 }
4853
4854 /****************************************************************************
4855  Reply to a printwrite.
4856 ****************************************************************************/
4857
4858 void reply_printwrite(struct smb_request *req)
4859 {
4860         connection_struct *conn = req->conn;
4861         int numtowrite;
4862         const char *data;
4863         files_struct *fsp;
4864
4865         START_PROFILE(SMBsplwr);
4866
4867         if (req->wct < 1) {
4868                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4869                 END_PROFILE(SMBsplwr);
4870                 return;
4871         }
4872
4873         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4874
4875         if (!check_fsp(conn, req, fsp)) {
4876                 END_PROFILE(SMBsplwr);
4877                 return;
4878         }
4879
4880         if (!CAN_PRINT(conn)) {
4881                 reply_doserror(req, ERRDOS, ERRnoaccess);
4882                 END_PROFILE(SMBsplwr);
4883                 return;
4884         }
4885
4886         if (!CHECK_WRITE(fsp)) {
4887                 reply_doserror(req, ERRDOS, ERRbadaccess);
4888                 END_PROFILE(SMBsplwr);
4889                 return;
4890         }
4891
4892         numtowrite = SVAL(req->buf, 1);
4893
4894         if (req->buflen < numtowrite + 3) {
4895                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4896                 END_PROFILE(SMBsplwr);
4897                 return;
4898         }
4899
4900         data = (const char *)req->buf + 3;
4901
4902         if (write_file(req,fsp,data,-1,numtowrite) != numtowrite) {
4903                 reply_unixerror(req, ERRHRD, ERRdiskfull);
4904                 END_PROFILE(SMBsplwr);
4905                 return;
4906         }
4907
4908         DEBUG( 3, ( "printwrite fnum=%d num=%d\n", fsp->fnum, numtowrite ) );
4909
4910         END_PROFILE(SMBsplwr);
4911         return;
4912 }
4913
4914 /****************************************************************************
4915  Reply to a mkdir.
4916 ****************************************************************************/
4917
4918 void reply_mkdir(struct smb_request *req)
4919 {
4920         connection_struct *conn = req->conn;
4921         char *directory = NULL;
4922         NTSTATUS status;
4923         SMB_STRUCT_STAT sbuf;
4924         TALLOC_CTX *ctx = talloc_tos();
4925
4926         START_PROFILE(SMBmkdir);
4927
4928         srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
4929                             STR_TERMINATE, &status);
4930         if (!NT_STATUS_IS_OK(status)) {
4931                 reply_nterror(req, status);
4932                 END_PROFILE(SMBmkdir);
4933                 return;
4934         }
4935
4936         status = resolve_dfspath(ctx, conn,
4937                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
4938                                  directory,
4939                                  &directory);
4940         if (!NT_STATUS_IS_OK(status)) {
4941                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
4942                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
4943                                         ERRSRV, ERRbadpath);
4944                         END_PROFILE(SMBmkdir);
4945                         return;
4946                 }
4947                 reply_nterror(req, status);
4948                 END_PROFILE(SMBmkdir);
4949                 return;
4950         }
4951
4952         status = unix_convert(ctx, conn, directory, False, &directory, NULL, &sbuf);
4953         if (!NT_STATUS_IS_OK(status)) {
4954                 reply_nterror(req, status);
4955                 END_PROFILE(SMBmkdir);
4956                 return;
4957         }
4958
4959         status = check_name(conn, directory);
4960         if (!NT_STATUS_IS_OK(status)) {
4961                 reply_nterror(req, status);
4962                 END_PROFILE(SMBmkdir);
4963                 return;
4964         }
4965
4966         status = create_directory(conn, req, directory);
4967
4968         DEBUG(5, ("create_directory returned %s\n", nt_errstr(status)));
4969
4970         if (!NT_STATUS_IS_OK(status)) {
4971
4972                 if (!use_nt_status()
4973                     && NT_STATUS_EQUAL(status,
4974                                        NT_STATUS_OBJECT_NAME_COLLISION)) {
4975                         /*
4976                          * Yes, in the DOS error code case we get a
4977                          * ERRDOS:ERRnoaccess here. See BASE-SAMBA3ERROR
4978                          * samba4 torture test.
4979                          */
4980                         status = NT_STATUS_DOS(ERRDOS, ERRnoaccess);
4981                 }
4982
4983                 reply_nterror(req, status);
4984                 END_PROFILE(SMBmkdir);
4985                 return;
4986         }
4987
4988         reply_outbuf(req, 0, 0);
4989
4990         DEBUG( 3, ( "mkdir %s\n", directory ) );
4991
4992         END_PROFILE(SMBmkdir);
4993         return;
4994 }
4995
4996 /****************************************************************************
4997  Static function used by reply_rmdir to delete an entire directory
4998  tree recursively. Return True on ok, False on fail.
4999 ****************************************************************************/
5000
5001 static bool recursive_rmdir(TALLOC_CTX *ctx,
5002                         connection_struct *conn,
5003                         char *directory)
5004 {
5005         const char *dname = NULL;
5006         bool ret = True;
5007         long offset = 0;
5008         struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn, directory,
5009                                           NULL, 0);
5010
5011         if(dir_hnd == NULL)
5012                 return False;
5013
5014         while((dname = ReadDirName(dir_hnd, &offset))) {
5015                 char *fullname = NULL;
5016                 SMB_STRUCT_STAT st;
5017
5018                 if (ISDOT(dname) || ISDOTDOT(dname)) {
5019                         continue;
5020                 }
5021
5022                 if (!is_visible_file(conn, directory, dname, &st, False)) {
5023                         continue;
5024                 }
5025
5026                 /* Construct the full name. */
5027                 fullname = talloc_asprintf(ctx,
5028                                 "%s/%s",
5029                                 directory,
5030                                 dname);
5031                 if (!fullname) {
5032                         errno = ENOMEM;
5033                         ret = False;
5034                         break;
5035                 }
5036
5037                 if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
5038                         ret = False;
5039                         break;
5040                 }
5041
5042                 if(st.st_mode & S_IFDIR) {
5043                         if(!recursive_rmdir(ctx, conn, fullname)) {
5044                                 ret = False;
5045                                 break;
5046                         }
5047                         if(SMB_VFS_RMDIR(conn,fullname) != 0) {
5048                                 ret = False;
5049                                 break;
5050                         }
5051                 } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
5052                         ret = False;
5053                         break;
5054                 }
5055                 TALLOC_FREE(fullname);
5056         }
5057         TALLOC_FREE(dir_hnd);
5058         return ret;
5059 }
5060
5061 /****************************************************************************
5062  The internals of the rmdir code - called elsewhere.
5063 ****************************************************************************/
5064
5065 NTSTATUS rmdir_internals(TALLOC_CTX *ctx,
5066                         connection_struct *conn,
5067                         const char *directory)
5068 {
5069         int ret;
5070         SMB_STRUCT_STAT st;
5071
5072         /* Might be a symlink. */
5073         if(SMB_VFS_LSTAT(conn, directory, &st) != 0) {
5074                 return map_nt_error_from_unix(errno);
5075         }
5076
5077         if (S_ISLNK(st.st_mode)) {
5078                 /* Is what it points to a directory ? */
5079                 if(SMB_VFS_STAT(conn, directory, &st) != 0) {
5080                         return map_nt_error_from_unix(errno);
5081                 }
5082                 if (!(S_ISDIR(st.st_mode))) {
5083                         return NT_STATUS_NOT_A_DIRECTORY;
5084                 }
5085                 ret = SMB_VFS_UNLINK(conn,directory);
5086         } else {
5087                 ret = SMB_VFS_RMDIR(conn,directory);
5088         }
5089         if (ret == 0) {
5090                 notify_fname(conn, NOTIFY_ACTION_REMOVED,
5091                              FILE_NOTIFY_CHANGE_DIR_NAME,
5092                              directory);
5093                 return NT_STATUS_OK;
5094         }
5095
5096         if(((errno == ENOTEMPTY)||(errno == EEXIST)) && lp_veto_files(SNUM(conn))) {
5097                 /*
5098                  * Check to see if the only thing in this directory are
5099                  * vetoed files/directories. If so then delete them and
5100                  * retry. If we fail to delete any of them (and we *don't*
5101                  * do a recursive delete) then fail the rmdir.
5102                  */
5103                 const char *dname;
5104                 long dirpos = 0;
5105                 struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn,
5106                                                   directory, NULL, 0);
5107
5108                 if(dir_hnd == NULL) {
5109                         errno = ENOTEMPTY;
5110                         goto err;
5111                 }
5112
5113                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
5114                         if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0))
5115                                 continue;
5116                         if (!is_visible_file(conn, directory, dname, &st, False))
5117                                 continue;
5118                         if(!IS_VETO_PATH(conn, dname)) {
5119                                 TALLOC_FREE(dir_hnd);
5120                                 errno = ENOTEMPTY;
5121                                 goto err;
5122                         }
5123                 }
5124
5125                 /* We only have veto files/directories.
5126                  * Are we allowed to delete them ? */
5127
5128                 if(!lp_recursive_veto_delete(SNUM(conn))) {
5129                         TALLOC_FREE(dir_hnd);
5130                         errno = ENOTEMPTY;
5131                         goto err;
5132                 }
5133
5134                 /* Do a recursive delete. */
5135                 RewindDir(dir_hnd,&dirpos);
5136                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
5137                         char *fullname = NULL;
5138
5139                         if (ISDOT(dname) || ISDOTDOT(dname)) {
5140                                 continue;
5141                         }
5142                         if (!is_visible_file(conn, directory, dname, &st, False)) {
5143                                 continue;
5144                         }
5145
5146                         fullname = talloc_asprintf(ctx,
5147                                         "%s/%s",
5148                                         directory,
5149                                         dname);
5150
5151                         if(!fullname) {
5152                                 errno = ENOMEM;
5153                                 break;
5154                         }
5155
5156                         if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
5157                                 break;
5158                         }
5159                         if(st.st_mode & S_IFDIR) {
5160                                 if(!recursive_rmdir(ctx, conn, fullname)) {
5161                                         break;
5162                                 }
5163                                 if(SMB_VFS_RMDIR(conn,fullname) != 0) {
5164                                         break;
5165                                 }
5166                         } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
5167                                 break;
5168                         }
5169                         TALLOC_FREE(fullname);
5170                 }
5171                 TALLOC_FREE(dir_hnd);
5172                 /* Retry the rmdir */
5173                 ret = SMB_VFS_RMDIR(conn,directory);
5174         }
5175
5176   err:
5177
5178         if (ret != 0) {
5179                 DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
5180                          "%s\n", directory,strerror(errno)));
5181                 return map_nt_error_from_unix(errno);
5182         }
5183
5184         notify_fname(conn, NOTIFY_ACTION_REMOVED,
5185                      FILE_NOTIFY_CHANGE_DIR_NAME,
5186                      directory);
5187
5188         return NT_STATUS_OK;
5189 }
5190
5191 /****************************************************************************
5192  Reply to a rmdir.
5193 ****************************************************************************/
5194
5195 void reply_rmdir(struct smb_request *req)
5196 {
5197         connection_struct *conn = req->conn;
5198         char *directory = NULL;
5199         SMB_STRUCT_STAT sbuf;
5200         NTSTATUS status;
5201         TALLOC_CTX *ctx = talloc_tos();
5202
5203         START_PROFILE(SMBrmdir);
5204
5205         srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
5206                             STR_TERMINATE, &status);
5207         if (!NT_STATUS_IS_OK(status)) {
5208                 reply_nterror(req, status);
5209                 END_PROFILE(SMBrmdir);
5210                 return;
5211         }
5212
5213         status = resolve_dfspath(ctx, conn,
5214                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
5215                                  directory,
5216                                  &directory);
5217         if (!NT_STATUS_IS_OK(status)) {
5218                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5219                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5220                                         ERRSRV, ERRbadpath);
5221                         END_PROFILE(SMBrmdir);
5222                         return;
5223                 }
5224                 reply_nterror(req, status);
5225                 END_PROFILE(SMBrmdir);
5226                 return;
5227         }
5228
5229         status = unix_convert(ctx, conn, directory, False, &directory,
5230                         NULL, &sbuf);
5231         if (!NT_STATUS_IS_OK(status)) {
5232                 reply_nterror(req, status);
5233                 END_PROFILE(SMBrmdir);
5234                 return;
5235         }
5236
5237         status = check_name(conn, directory);
5238         if (!NT_STATUS_IS_OK(status)) {
5239                 reply_nterror(req, status);
5240                 END_PROFILE(SMBrmdir);
5241                 return;
5242         }
5243
5244         dptr_closepath(directory, req->smbpid);
5245         status = rmdir_internals(ctx, conn, directory);
5246         if (!NT_STATUS_IS_OK(status)) {
5247                 reply_nterror(req, status);
5248                 END_PROFILE(SMBrmdir);
5249                 return;
5250         }
5251
5252         reply_outbuf(req, 0, 0);
5253
5254         DEBUG( 3, ( "rmdir %s\n", directory ) );
5255
5256         END_PROFILE(SMBrmdir);
5257         return;
5258 }
5259
5260 /*******************************************************************
5261  Resolve wildcards in a filename rename.
5262 ********************************************************************/
5263
5264 static bool resolve_wildcards(TALLOC_CTX *ctx,
5265                                 const char *name1,
5266                                 const char *name2,
5267                                 char **pp_newname)
5268 {
5269         char *name2_copy = NULL;
5270         char *root1 = NULL;
5271         char *root2 = NULL;
5272         char *ext1 = NULL;
5273         char *ext2 = NULL;
5274         char *p,*p2, *pname1, *pname2;
5275
5276         name2_copy = talloc_strdup(ctx, name2);
5277         if (!name2_copy) {
5278                 return False;
5279         }
5280
5281         pname1 = strrchr_m(name1,'/');
5282         pname2 = strrchr_m(name2_copy,'/');
5283
5284         if (!pname1 || !pname2) {
5285                 return False;
5286         }
5287
5288         /* Truncate the copy of name2 at the last '/' */
5289         *pname2 = '\0';
5290
5291         /* Now go past the '/' */
5292         pname1++;
5293         pname2++;
5294
5295         root1 = talloc_strdup(ctx, pname1);
5296         root2 = talloc_strdup(ctx, pname2);
5297
5298         if (!root1 || !root2) {
5299                 return False;
5300         }
5301
5302         p = strrchr_m(root1,'.');
5303         if (p) {
5304                 *p = 0;
5305                 ext1 = talloc_strdup(ctx, p+1);
5306         } else {
5307                 ext1 = talloc_strdup(ctx, "");
5308         }
5309         p = strrchr_m(root2,'.');
5310         if (p) {
5311                 *p = 0;
5312                 ext2 = talloc_strdup(ctx, p+1);
5313         } else {
5314                 ext2 = talloc_strdup(ctx, "");
5315         }
5316
5317         if (!ext1 || !ext2) {
5318                 return False;
5319         }
5320
5321         p = root1;
5322         p2 = root2;
5323         while (*p2) {
5324                 if (*p2 == '?') {
5325                         /* Hmmm. Should this be mb-aware ? */
5326                         *p2 = *p;
5327                         p2++;
5328                 } else if (*p2 == '*') {
5329                         *p2 = '\0';
5330                         root2 = talloc_asprintf(ctx, "%s%s",
5331                                                 root2,
5332                                                 p);
5333                         if (!root2) {
5334                                 return False;
5335                         }
5336                         break;
5337                 } else {
5338                         p2++;
5339                 }
5340                 if (*p) {
5341                         p++;
5342                 }
5343         }
5344
5345         p = ext1;
5346         p2 = ext2;
5347         while (*p2) {
5348                 if (*p2 == '?') {
5349                         /* Hmmm. Should this be mb-aware ? */
5350                         *p2 = *p;
5351                         p2++;
5352                 } else if (*p2 == '*') {
5353                         *p2 = '\0';
5354                         ext2 = talloc_asprintf(ctx, "%s%s",
5355                                                 ext2,
5356                                                 p);
5357                         if (!ext2) {
5358                                 return False;
5359                         }
5360                         break;
5361                 } else {
5362                         p2++;
5363                 }
5364                 if (*p) {
5365                         p++;
5366                 }
5367         }
5368
5369         if (*ext2) {
5370                 *pp_newname = talloc_asprintf(ctx, "%s/%s.%s",
5371                                 name2_copy,
5372                                 root2,
5373                                 ext2);
5374         } else {
5375                 *pp_newname = talloc_asprintf(ctx, "%s/%s",
5376                                 name2_copy,
5377                                 root2);
5378         }
5379
5380         if (!*pp_newname) {
5381                 return False;
5382         }
5383
5384         return True;
5385 }
5386
5387 /****************************************************************************
5388  Ensure open files have their names updated. Updated to notify other smbd's
5389  asynchronously.
5390 ****************************************************************************/
5391
5392 static void rename_open_files(connection_struct *conn,
5393                               struct share_mode_lock *lck,
5394                               const char *newname)
5395 {
5396         files_struct *fsp;
5397         bool did_rename = False;
5398
5399         for(fsp = file_find_di_first(lck->id); fsp;
5400             fsp = file_find_di_next(fsp)) {
5401                 /* fsp_name is a relative path under the fsp. To change this for other
5402                    sharepaths we need to manipulate relative paths. */
5403                 /* TODO - create the absolute path and manipulate the newname
5404                    relative to the sharepath. */
5405                 if (!strequal(fsp->conn->connectpath, conn->connectpath)) {
5406                         continue;
5407                 }
5408                 DEBUG(10,("rename_open_files: renaming file fnum %d (file_id %s) from %s -> %s\n",
5409                           fsp->fnum, file_id_string_tos(&fsp->file_id),
5410                         fsp->fsp_name, newname ));
5411                 string_set(&fsp->fsp_name, newname);
5412                 did_rename = True;
5413         }
5414
5415         if (!did_rename) {
5416                 DEBUG(10,("rename_open_files: no open files on file_id %s for %s\n",
5417                           file_id_string_tos(&lck->id), newname ));
5418         }
5419
5420         /* Send messages to all smbd's (not ourself) that the name has changed. */
5421         rename_share_filename(smbd_messaging_context(), lck, conn->connectpath,
5422                               newname);
5423 }
5424
5425 /****************************************************************************
5426  We need to check if the source path is a parent directory of the destination
5427  (ie. a rename of /foo/bar/baz -> /foo/bar/baz/bibble/bobble. If so we must
5428  refuse the rename with a sharing violation. Under UNIX the above call can
5429  *succeed* if /foo/bar/baz is a symlink to another area in the share. We
5430  probably need to check that the client is a Windows one before disallowing
5431  this as a UNIX client (one with UNIX extensions) can know the source is a
5432  symlink and make this decision intelligently. Found by an excellent bug
5433  report from <AndyLiebman@aol.com>.
5434 ****************************************************************************/
5435
5436 static bool rename_path_prefix_equal(const char *src, const char *dest)
5437 {
5438         const char *psrc = src;
5439         const char *pdst = dest;
5440         size_t slen;
5441
5442         if (psrc[0] == '.' && psrc[1] == '/') {
5443                 psrc += 2;
5444         }
5445         if (pdst[0] == '.' && pdst[1] == '/') {
5446                 pdst += 2;
5447         }
5448         if ((slen = strlen(psrc)) > strlen(pdst)) {
5449                 return False;
5450         }
5451         return ((memcmp(psrc, pdst, slen) == 0) && pdst[slen] == '/');
5452 }
5453
5454 /*
5455  * Do the notify calls from a rename
5456  */
5457
5458 static void notify_rename(connection_struct *conn, bool is_dir,
5459                           const char *oldpath, const char *newpath)
5460 {
5461         char *olddir, *newdir;
5462         const char *oldname, *newname;
5463         uint32 mask;
5464
5465         mask = is_dir ? FILE_NOTIFY_CHANGE_DIR_NAME
5466                 : FILE_NOTIFY_CHANGE_FILE_NAME;
5467
5468         if (!parent_dirname(talloc_tos(), oldpath, &olddir, &oldname)
5469             || !parent_dirname(talloc_tos(), newpath, &newdir, &newname)) {
5470                 TALLOC_FREE(olddir);
5471                 return;
5472         }
5473
5474         if (strcmp(olddir, newdir) == 0) {
5475                 notify_fname(conn, NOTIFY_ACTION_OLD_NAME, mask, oldpath);
5476                 notify_fname(conn, NOTIFY_ACTION_NEW_NAME, mask, newpath);
5477         }
5478         else {
5479                 notify_fname(conn, NOTIFY_ACTION_REMOVED, mask, oldpath);
5480                 notify_fname(conn, NOTIFY_ACTION_ADDED, mask, newpath);
5481         }
5482         TALLOC_FREE(olddir);
5483         TALLOC_FREE(newdir);
5484
5485         /* this is a strange one. w2k3 gives an additional event for
5486            CHANGE_ATTRIBUTES and CHANGE_CREATION on the new file when renaming
5487            files, but not directories */
5488         if (!is_dir) {
5489                 notify_fname(conn, NOTIFY_ACTION_MODIFIED,
5490                              FILE_NOTIFY_CHANGE_ATTRIBUTES
5491                              |FILE_NOTIFY_CHANGE_CREATION,
5492                              newpath);
5493         }
5494 }
5495
5496 /****************************************************************************
5497  Rename an open file - given an fsp.
5498 ****************************************************************************/
5499
5500 NTSTATUS rename_internals_fsp(connection_struct *conn,
5501                         files_struct *fsp,
5502                         char *newname,
5503                         const char *newname_last_component,
5504                         uint32 attrs,
5505                         bool replace_if_exists)
5506 {
5507         TALLOC_CTX *ctx = talloc_tos();
5508         SMB_STRUCT_STAT sbuf, sbuf1;
5509         NTSTATUS status = NT_STATUS_OK;
5510         struct share_mode_lock *lck = NULL;
5511         bool dst_exists, old_is_stream, new_is_stream;
5512
5513         ZERO_STRUCT(sbuf);
5514
5515         status = check_name(conn, newname);
5516         if (!NT_STATUS_IS_OK(status)) {
5517                 return status;
5518         }
5519
5520         /* Ensure newname contains a '/' */
5521         if(strrchr_m(newname,'/') == 0) {
5522                 newname = talloc_asprintf(ctx,
5523                                         "./%s",
5524                                         newname);
5525                 if (!newname) {
5526                         return NT_STATUS_NO_MEMORY;
5527                 }
5528         }
5529
5530         /*
5531          * Check for special case with case preserving and not
5532          * case sensitive. If the old last component differs from the original
5533          * last component only by case, then we should allow
5534          * the rename (user is trying to change the case of the
5535          * filename).
5536          */
5537
5538         if((conn->case_sensitive == False) && (conn->case_preserve == True) &&
5539                         strequal(newname, fsp->fsp_name)) {
5540                 char *p;
5541                 char *newname_modified_last_component = NULL;
5542
5543                 /*
5544                  * Get the last component of the modified name.
5545                  * Note that we guarantee that newname contains a '/'
5546                  * character above.
5547                  */
5548                 p = strrchr_m(newname,'/');
5549                 newname_modified_last_component = talloc_strdup(ctx,
5550                                                 p+1);
5551                 if (!newname_modified_last_component) {
5552                         return NT_STATUS_NO_MEMORY;
5553                 }
5554
5555                 if(strcsequal(newname_modified_last_component,
5556                               newname_last_component) == False) {
5557                         /*
5558                          * Replace the modified last component with
5559                          * the original.
5560                          */
5561                         *p = '\0'; /* Truncate at the '/' */
5562                         newname = talloc_asprintf(ctx,
5563                                         "%s/%s",
5564                                         newname,
5565                                         newname_last_component);
5566                 }
5567         }
5568
5569         /*
5570          * If the src and dest names are identical - including case,
5571          * don't do the rename, just return success.
5572          */
5573
5574         if (strcsequal(fsp->fsp_name, newname)) {
5575                 DEBUG(3,("rename_internals_fsp: identical names in rename %s - returning success\n",
5576                         newname));
5577                 return NT_STATUS_OK;
5578         }
5579
5580         old_is_stream = is_ntfs_stream_name(fsp->fsp_name);
5581         new_is_stream = is_ntfs_stream_name(newname);
5582
5583         /* Return the correct error code if both names aren't streams. */
5584         if (!old_is_stream && new_is_stream) {
5585                 return NT_STATUS_OBJECT_NAME_INVALID;
5586         }
5587
5588         if (old_is_stream && !new_is_stream) {
5589                 return NT_STATUS_INVALID_PARAMETER;
5590         }
5591
5592         /*
5593          * Have vfs_object_exist also fill sbuf1
5594          */
5595         dst_exists = vfs_object_exist(conn, newname, &sbuf1);
5596
5597         if(!replace_if_exists && dst_exists) {
5598                 DEBUG(3,("rename_internals_fsp: dest exists doing rename %s -> %s\n",
5599                         fsp->fsp_name,newname));
5600                 return NT_STATUS_OBJECT_NAME_COLLISION;
5601         }
5602
5603         if (dst_exists) {
5604                 struct file_id fileid = vfs_file_id_from_sbuf(conn, &sbuf1);
5605                 files_struct *dst_fsp = file_find_di_first(fileid);
5606                 /* The file can be open when renaming a stream */
5607                 if (dst_fsp && !new_is_stream) {
5608                         DEBUG(3, ("rename_internals_fsp: Target file open\n"));
5609                         return NT_STATUS_ACCESS_DENIED;
5610                 }
5611         }
5612
5613         /* Ensure we have a valid stat struct for the source. */
5614         if (fsp->fh->fd != -1) {
5615                 if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
5616                         return map_nt_error_from_unix(errno);
5617                 }
5618         } else {
5619                 if (SMB_VFS_STAT(conn,fsp->fsp_name,&sbuf) == -1) {
5620                         return map_nt_error_from_unix(errno);
5621                 }
5622         }
5623
5624         status = can_rename(conn, fsp, attrs, &sbuf);
5625
5626         if (!NT_STATUS_IS_OK(status)) {
5627                 DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5628                         nt_errstr(status), fsp->fsp_name,newname));
5629                 if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION))
5630                         status = NT_STATUS_ACCESS_DENIED;
5631                 return status;
5632         }
5633
5634         if (rename_path_prefix_equal(fsp->fsp_name, newname)) {
5635                 return NT_STATUS_ACCESS_DENIED;
5636         }
5637
5638         lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
5639                                   NULL);
5640
5641         /*
5642          * We have the file open ourselves, so not being able to get the
5643          * corresponding share mode lock is a fatal error.
5644          */
5645
5646         SMB_ASSERT(lck != NULL);
5647
5648         if(SMB_VFS_RENAME(conn,fsp->fsp_name, newname) == 0) {
5649                 uint32 create_options = fsp->fh->private_options;
5650
5651                 DEBUG(3,("rename_internals_fsp: succeeded doing rename on %s -> %s\n",
5652                         fsp->fsp_name,newname));
5653
5654                 notify_rename(conn, fsp->is_directory, fsp->fsp_name, newname);
5655
5656                 rename_open_files(conn, lck, newname);
5657
5658                 /*
5659                  * A rename acts as a new file create w.r.t. allowing an initial delete
5660                  * on close, probably because in Windows there is a new handle to the
5661                  * new file. If initial delete on close was requested but not
5662                  * originally set, we need to set it here. This is probably not 100% correct,
5663                  * but will work for the CIFSFS client which in non-posix mode
5664                  * depends on these semantics. JRA.
5665                  */
5666
5667                 if (create_options & FILE_DELETE_ON_CLOSE) {
5668                         status = can_set_delete_on_close(fsp, True, 0);
5669
5670                         if (NT_STATUS_IS_OK(status)) {
5671                                 /* Note that here we set the *inital* delete on close flag,
5672                                  * not the regular one. The magic gets handled in close. */
5673                                 fsp->initial_delete_on_close = True;
5674                         }
5675                 }
5676                 TALLOC_FREE(lck);
5677                 return NT_STATUS_OK;
5678         }
5679
5680         TALLOC_FREE(lck);
5681
5682         if (errno == ENOTDIR || errno == EISDIR) {
5683                 status = NT_STATUS_OBJECT_NAME_COLLISION;
5684         } else {
5685                 status = map_nt_error_from_unix(errno);
5686         }
5687
5688         DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5689                 nt_errstr(status), fsp->fsp_name,newname));
5690
5691         return status;
5692 }
5693
5694 /****************************************************************************
5695  The guts of the rename command, split out so it may be called by the NT SMB
5696  code.
5697 ****************************************************************************/
5698
5699 NTSTATUS rename_internals(TALLOC_CTX *ctx,
5700                         connection_struct *conn,
5701                         struct smb_request *req,
5702                         const char *name_in,
5703                         const char *newname_in,
5704                         uint32 attrs,
5705                         bool replace_if_exists,
5706                         bool src_has_wild,
5707                         bool dest_has_wild,
5708                         uint32_t access_mask)
5709 {
5710         char *directory = NULL;
5711         char *mask = NULL;
5712         char *last_component_src = NULL;
5713         char *last_component_dest = NULL;
5714         char *name = NULL;
5715         char *newname = NULL;
5716         char *p;
5717         int count=0;
5718         NTSTATUS status = NT_STATUS_OK;
5719         SMB_STRUCT_STAT sbuf1, sbuf2;
5720         struct smb_Dir *dir_hnd = NULL;
5721         const char *dname;
5722         long offset = 0;
5723         int create_options = 0;
5724
5725         ZERO_STRUCT(sbuf1);
5726         ZERO_STRUCT(sbuf2);
5727
5728         status = unix_convert(ctx, conn, name_in, src_has_wild, &name,
5729                         &last_component_src, &sbuf1);
5730         if (!NT_STATUS_IS_OK(status)) {
5731                 return status;
5732         }
5733
5734         status = unix_convert(ctx, conn, newname_in, dest_has_wild, &newname,
5735                         &last_component_dest, &sbuf2);
5736         if (!NT_STATUS_IS_OK(status)) {
5737                 return status;
5738         }
5739
5740         /*
5741          * Split the old name into directory and last component
5742          * strings. Note that unix_convert may have stripped off a
5743          * leading ./ from both name and newname if the rename is
5744          * at the root of the share. We need to make sure either both
5745          * name and newname contain a / character or neither of them do
5746          * as this is checked in resolve_wildcards().
5747          */
5748
5749         p = strrchr_m(name,'/');
5750         if (!p) {
5751                 directory = talloc_strdup(ctx, ".");
5752                 if (!directory) {
5753                         return NT_STATUS_NO_MEMORY;
5754                 }
5755                 mask = name;
5756         } else {
5757                 *p = 0;
5758                 directory = talloc_strdup(ctx, name);
5759                 if (!directory) {
5760                         return NT_STATUS_NO_MEMORY;
5761                 }
5762                 mask = p+1;
5763                 *p = '/'; /* Replace needed for exceptional test below. */
5764         }
5765
5766         /*
5767          * We should only check the mangled cache
5768          * here if unix_convert failed. This means
5769          * that the path in 'mask' doesn't exist
5770          * on the file system and so we need to look
5771          * for a possible mangle. This patch from
5772          * Tine Smukavec <valentin.smukavec@hermes.si>.
5773          */
5774
5775         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
5776                 char *new_mask = NULL;
5777                 mangle_lookup_name_from_8_3(ctx,
5778                                         mask,
5779                                         &new_mask,
5780                                         conn->params );
5781                 if (new_mask) {
5782                         mask = new_mask;
5783                 }
5784         }
5785
5786         if (!src_has_wild) {
5787                 files_struct *fsp;
5788
5789                 /*
5790                  * No wildcards - just process the one file.
5791                  */
5792                 bool is_short_name = mangle_is_8_3(name, True, conn->params);
5793
5794                 /* Add a terminating '/' to the directory name. */
5795                 directory = talloc_asprintf_append(directory,
5796                                 "/%s",
5797                                 mask);
5798                 if (!directory) {
5799                         return NT_STATUS_NO_MEMORY;
5800                 }
5801
5802                 /* Ensure newname contains a '/' also */
5803                 if(strrchr_m(newname,'/') == 0) {
5804                         newname = talloc_asprintf(ctx,
5805                                                 "./%s",
5806                                                 newname);
5807                         if (!newname) {
5808                                 return NT_STATUS_NO_MEMORY;
5809                         }
5810                 }
5811
5812                 DEBUG(3, ("rename_internals: case_sensitive = %d, "
5813                           "case_preserve = %d, short case preserve = %d, "
5814                           "directory = %s, newname = %s, "
5815                           "last_component_dest = %s, is_8_3 = %d\n",
5816                           conn->case_sensitive, conn->case_preserve,
5817                           conn->short_case_preserve, directory,
5818                           newname, last_component_dest, is_short_name));
5819
5820                 /* The dest name still may have wildcards. */
5821                 if (dest_has_wild) {
5822                         char *mod_newname = NULL;
5823                         if (!resolve_wildcards(ctx,
5824                                         directory,newname,&mod_newname)) {
5825                                 DEBUG(6, ("rename_internals: resolve_wildcards "
5826                                         "%s %s failed\n",
5827                                         directory,
5828                                         newname));
5829                                 return NT_STATUS_NO_MEMORY;
5830                         }
5831                         newname = mod_newname;
5832                 }
5833
5834                 ZERO_STRUCT(sbuf1);
5835                 SMB_VFS_STAT(conn, directory, &sbuf1);
5836
5837                 if (S_ISDIR(sbuf1.st_mode)) {
5838                         create_options |= FILE_DIRECTORY_FILE;
5839                 }
5840
5841                 status = SMB_VFS_CREATE_FILE(
5842                         conn,                           /* conn */
5843                         req,                            /* req */
5844                         0,                              /* root_dir_fid */
5845                         directory,                      /* fname */
5846                         0,                              /* create_file_flags */
5847                         access_mask,                    /* access_mask */
5848                         (FILE_SHARE_READ |              /* share_access */
5849                             FILE_SHARE_WRITE),
5850                         FILE_OPEN,                      /* create_disposition*/
5851                         create_options,                 /* create_options */
5852                         0,                              /* file_attributes */
5853                         0,                              /* oplock_request */
5854                         0,                              /* allocation_size */
5855                         NULL,                           /* sd */
5856                         NULL,                           /* ea_list */
5857                         &fsp,                           /* result */
5858                         NULL,                           /* pinfo */
5859                         &sbuf1);                        /* psbuf */
5860
5861                 if (!NT_STATUS_IS_OK(status)) {
5862                         DEBUG(3, ("Could not open rename source %s: %s\n",
5863                                   directory, nt_errstr(status)));
5864                         return status;
5865                 }
5866
5867                 status = rename_internals_fsp(conn, fsp, newname,
5868                                               last_component_dest,
5869                                               attrs, replace_if_exists);
5870
5871                 close_file(req, fsp, NORMAL_CLOSE);
5872
5873                 DEBUG(3, ("rename_internals: Error %s rename %s -> %s\n",
5874                           nt_errstr(status), directory,newname));
5875
5876                 return status;
5877         }
5878
5879         /*
5880          * Wildcards - process each file that matches.
5881          */
5882         if (strequal(mask,"????????.???")) {
5883                 mask[0] = '*';
5884                 mask[1] = '\0';
5885         }
5886
5887         status = check_name(conn, directory);
5888         if (!NT_STATUS_IS_OK(status)) {
5889                 return status;
5890         }
5891
5892         dir_hnd = OpenDir(talloc_tos(), conn, directory, mask, attrs);
5893         if (dir_hnd == NULL) {
5894                 return map_nt_error_from_unix(errno);
5895         }
5896
5897         status = NT_STATUS_NO_SUCH_FILE;
5898         /*
5899          * Was status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
5900          * - gentest fix. JRA
5901          */
5902
5903         while ((dname = ReadDirName(dir_hnd, &offset))) {
5904                 files_struct *fsp = NULL;
5905                 char *fname = NULL;
5906                 char *destname = NULL;
5907                 bool sysdir_entry = False;
5908
5909                 /* Quick check for "." and ".." */
5910                 if (ISDOT(dname) || ISDOTDOT(dname)) {
5911                         if (attrs & aDIR) {
5912                                 sysdir_entry = True;
5913                         } else {
5914                                 continue;
5915                         }
5916                 }
5917
5918                 if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
5919                         continue;
5920                 }
5921
5922                 if(!mask_match(dname, mask, conn->case_sensitive)) {
5923                         continue;
5924                 }
5925
5926                 if (sysdir_entry) {
5927                         status = NT_STATUS_OBJECT_NAME_INVALID;
5928                         break;
5929                 }
5930
5931                 fname = talloc_asprintf(ctx,
5932                                 "%s/%s",
5933                                 directory,
5934                                 dname);
5935                 if (!fname) {
5936                         return NT_STATUS_NO_MEMORY;
5937                 }
5938
5939                 if (!resolve_wildcards(ctx,
5940                                 fname,newname,&destname)) {
5941                         DEBUG(6, ("resolve_wildcards %s %s failed\n",
5942                                   fname, destname));
5943                         TALLOC_FREE(fname);
5944                         continue;
5945                 }
5946                 if (!destname) {
5947                         return NT_STATUS_NO_MEMORY;
5948                 }
5949
5950                 ZERO_STRUCT(sbuf1);
5951                 SMB_VFS_STAT(conn, fname, &sbuf1);
5952
5953                 create_options = 0;
5954
5955                 if (S_ISDIR(sbuf1.st_mode)) {
5956                         create_options |= FILE_DIRECTORY_FILE;
5957                 }
5958
5959                 status = SMB_VFS_CREATE_FILE(
5960                         conn,                           /* conn */
5961                         req,                            /* req */
5962                         0,                              /* root_dir_fid */
5963                         fname,                          /* fname */
5964                         0,                              /* create_file_flags */
5965                         access_mask,                    /* access_mask */
5966                         (FILE_SHARE_READ |              /* share_access */
5967                             FILE_SHARE_WRITE),
5968                         FILE_OPEN,                      /* create_disposition*/
5969                         create_options,                 /* create_options */
5970                         0,                              /* file_attributes */
5971                         0,                              /* oplock_request */
5972                         0,                              /* allocation_size */
5973                         NULL,                           /* sd */
5974                         NULL,                           /* ea_list */
5975                         &fsp,                           /* result */
5976                         NULL,                           /* pinfo */
5977                         &sbuf1);                        /* psbuf */
5978
5979                 if (!NT_STATUS_IS_OK(status)) {
5980                         DEBUG(3,("rename_internals: SMB_VFS_CREATE_FILE "
5981                                  "returned %s rename %s -> %s\n",
5982                                  nt_errstr(status), directory, newname));
5983                         break;
5984                 }
5985
5986                 status = rename_internals_fsp(conn, fsp, destname, dname,
5987                                               attrs, replace_if_exists);
5988
5989                 close_file(req, fsp, NORMAL_CLOSE);
5990
5991                 if (!NT_STATUS_IS_OK(status)) {
5992                         DEBUG(3, ("rename_internals_fsp returned %s for "
5993                                   "rename %s -> %s\n", nt_errstr(status),
5994                                   directory, newname));
5995                         break;
5996                 }
5997
5998                 count++;
5999
6000                 DEBUG(3,("rename_internals: doing rename on %s -> "
6001                          "%s\n",fname,destname));
6002
6003                 TALLOC_FREE(fname);
6004                 TALLOC_FREE(destname);
6005         }
6006         TALLOC_FREE(dir_hnd);
6007
6008         if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
6009                 status = map_nt_error_from_unix(errno);
6010         }
6011
6012         return status;
6013 }
6014
6015 /****************************************************************************
6016  Reply to a mv.
6017 ****************************************************************************/
6018
6019 void reply_mv(struct smb_request *req)
6020 {
6021         connection_struct *conn = req->conn;
6022         char *name = NULL;
6023         char *newname = NULL;
6024         const char *p;
6025         uint32 attrs;
6026         NTSTATUS status;
6027         bool src_has_wcard = False;
6028         bool dest_has_wcard = False;
6029         TALLOC_CTX *ctx = talloc_tos();
6030
6031         START_PROFILE(SMBmv);
6032
6033         if (req->wct < 1) {
6034                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6035                 END_PROFILE(SMBmv);
6036                 return;
6037         }
6038
6039         attrs = SVAL(req->vwv+0, 0);
6040
6041         p = (const char *)req->buf + 1;
6042         p += srvstr_get_path_req_wcard(ctx, req, &name, p, STR_TERMINATE,
6043                                        &status, &src_has_wcard);
6044         if (!NT_STATUS_IS_OK(status)) {
6045                 reply_nterror(req, status);
6046                 END_PROFILE(SMBmv);
6047                 return;
6048         }
6049         p++;
6050         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
6051                                        &status, &dest_has_wcard);
6052         if (!NT_STATUS_IS_OK(status)) {
6053                 reply_nterror(req, status);
6054                 END_PROFILE(SMBmv);
6055                 return;
6056         }
6057
6058         status = resolve_dfspath_wcard(ctx, conn,
6059                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6060                                        name,
6061                                        &name,
6062                                        &src_has_wcard);
6063         if (!NT_STATUS_IS_OK(status)) {
6064                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6065                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6066                                         ERRSRV, ERRbadpath);
6067                         END_PROFILE(SMBmv);
6068                         return;
6069                 }
6070                 reply_nterror(req, status);
6071                 END_PROFILE(SMBmv);
6072                 return;
6073         }
6074
6075         status = resolve_dfspath_wcard(ctx, conn,
6076                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6077                                        newname,
6078                                        &newname,
6079                                        &dest_has_wcard);
6080         if (!NT_STATUS_IS_OK(status)) {
6081                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6082                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6083                                         ERRSRV, ERRbadpath);
6084                         END_PROFILE(SMBmv);
6085                         return;
6086                 }
6087                 reply_nterror(req, status);
6088                 END_PROFILE(SMBmv);
6089                 return;
6090         }
6091
6092         DEBUG(3,("reply_mv : %s -> %s\n",name,newname));
6093
6094         status = rename_internals(ctx, conn, req, name, newname, attrs, False,
6095                                   src_has_wcard, dest_has_wcard, DELETE_ACCESS);
6096         if (!NT_STATUS_IS_OK(status)) {
6097                 if (open_was_deferred(req->mid)) {
6098                         /* We have re-scheduled this call. */
6099                         END_PROFILE(SMBmv);
6100                         return;
6101                 }
6102                 reply_nterror(req, status);
6103                 END_PROFILE(SMBmv);
6104                 return;
6105         }
6106
6107         reply_outbuf(req, 0, 0);
6108
6109         END_PROFILE(SMBmv);
6110         return;
6111 }
6112
6113 /*******************************************************************
6114  Copy a file as part of a reply_copy.
6115 ******************************************************************/
6116
6117 /*
6118  * TODO: check error codes on all callers
6119  */
6120
6121 NTSTATUS copy_file(TALLOC_CTX *ctx,
6122                         connection_struct *conn,
6123                         const char *src,
6124                         const char *dest1,
6125                         int ofun,
6126                         int count,
6127                         bool target_is_directory)
6128 {
6129         SMB_STRUCT_STAT src_sbuf, sbuf2;
6130         SMB_OFF_T ret=-1;
6131         files_struct *fsp1,*fsp2;
6132         char *dest = NULL;
6133         uint32 dosattrs;
6134         uint32 new_create_disposition;
6135         NTSTATUS status;
6136
6137         dest = talloc_strdup(ctx, dest1);
6138         if (!dest) {
6139                 return NT_STATUS_NO_MEMORY;
6140         }
6141         if (target_is_directory) {
6142                 const char *p = strrchr_m(src,'/');
6143                 if (p) {
6144                         p++;
6145                 } else {
6146                         p = src;
6147                 }
6148                 dest = talloc_asprintf_append(dest,
6149                                 "/%s",
6150                                 p);
6151                 if (!dest) {
6152                         return NT_STATUS_NO_MEMORY;
6153                 }
6154         }
6155
6156         if (!vfs_file_exist(conn,src,&src_sbuf)) {
6157                 TALLOC_FREE(dest);
6158                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
6159         }
6160
6161         if (!target_is_directory && count) {
6162                 new_create_disposition = FILE_OPEN;
6163         } else {
6164                 if (!map_open_params_to_ntcreate(dest1,0,ofun,
6165                                 NULL, NULL, &new_create_disposition, NULL)) {
6166                         TALLOC_FREE(dest);
6167                         return NT_STATUS_INVALID_PARAMETER;
6168                 }
6169         }
6170
6171         status = SMB_VFS_CREATE_FILE(
6172                 conn,                                   /* conn */
6173                 NULL,                                   /* req */
6174                 0,                                      /* root_dir_fid */
6175                 src,                                    /* fname */
6176                 0,                                      /* create_file_flags */
6177                 FILE_GENERIC_READ,                      /* access_mask */
6178                 FILE_SHARE_READ | FILE_SHARE_WRITE,     /* share_access */
6179                 FILE_OPEN,                              /* create_disposition*/
6180                 0,                                      /* create_options */
6181                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
6182                 INTERNAL_OPEN_ONLY,                     /* oplock_request */
6183                 0,                                      /* allocation_size */
6184                 NULL,                                   /* sd */
6185                 NULL,                                   /* ea_list */
6186                 &fsp1,                                  /* result */
6187                 NULL,                                   /* pinfo */
6188                 &src_sbuf);                             /* psbuf */
6189
6190         if (!NT_STATUS_IS_OK(status)) {
6191                 TALLOC_FREE(dest);
6192                 return status;
6193         }
6194
6195         dosattrs = dos_mode(conn, src, &src_sbuf);
6196         if (SMB_VFS_STAT(conn,dest,&sbuf2) == -1) {
6197                 ZERO_STRUCTP(&sbuf2);
6198         }
6199
6200         status = SMB_VFS_CREATE_FILE(
6201                 conn,                                   /* conn */
6202                 NULL,                                   /* req */
6203                 0,                                      /* root_dir_fid */
6204                 dest,                                   /* fname */
6205                 0,                                      /* create_file_flags */
6206                 FILE_GENERIC_WRITE,                     /* access_mask */
6207                 FILE_SHARE_READ | FILE_SHARE_WRITE,     /* share_access */
6208                 new_create_disposition,                 /* create_disposition*/
6209                 0,                                      /* create_options */
6210                 dosattrs,                               /* file_attributes */
6211                 INTERNAL_OPEN_ONLY,                     /* oplock_request */
6212                 0,                                      /* allocation_size */
6213                 NULL,                                   /* sd */
6214                 NULL,                                   /* ea_list */
6215                 &fsp2,                                  /* result */
6216                 NULL,                                   /* pinfo */
6217                 &sbuf2);                                /* psbuf */
6218
6219         TALLOC_FREE(dest);
6220
6221         if (!NT_STATUS_IS_OK(status)) {
6222                 close_file(NULL, fsp1, ERROR_CLOSE);
6223                 return status;
6224         }
6225
6226         if ((ofun&3) == 1) {
6227                 if(SMB_VFS_LSEEK(fsp2,0,SEEK_END) == -1) {
6228                         DEBUG(0,("copy_file: error - vfs lseek returned error %s\n", strerror(errno) ));
6229                         /*
6230                          * Stop the copy from occurring.
6231                          */
6232                         ret = -1;
6233                         src_sbuf.st_size = 0;
6234                 }
6235         }
6236
6237         if (src_sbuf.st_size) {
6238                 ret = vfs_transfer_file(fsp1, fsp2, src_sbuf.st_size);
6239         }
6240
6241         close_file(NULL, fsp1, NORMAL_CLOSE);
6242
6243         /* Ensure the modtime is set correctly on the destination file. */
6244         set_close_write_time(fsp2, get_mtimespec(&src_sbuf));
6245
6246         /*
6247          * As we are opening fsp1 read-only we only expect
6248          * an error on close on fsp2 if we are out of space.
6249          * Thus we don't look at the error return from the
6250          * close of fsp1.
6251          */
6252         status = close_file(NULL, fsp2, NORMAL_CLOSE);
6253
6254         if (!NT_STATUS_IS_OK(status)) {
6255                 return status;
6256         }
6257
6258         if (ret != (SMB_OFF_T)src_sbuf.st_size) {
6259                 return NT_STATUS_DISK_FULL;
6260         }
6261
6262         return NT_STATUS_OK;
6263 }
6264
6265 /****************************************************************************
6266  Reply to a file copy.
6267 ****************************************************************************/
6268
6269 void reply_copy(struct smb_request *req)
6270 {
6271         connection_struct *conn = req->conn;
6272         char *name = NULL;
6273         char *newname = NULL;
6274         char *directory = NULL;
6275         const char *mask = NULL;
6276         const char mask_star[] = "*";
6277         const char *p;
6278         int count=0;
6279         int error = ERRnoaccess;
6280         int err = 0;
6281         int tid2;
6282         int ofun;
6283         int flags;
6284         bool target_is_directory=False;
6285         bool source_has_wild = False;
6286         bool dest_has_wild = False;
6287         SMB_STRUCT_STAT sbuf1, sbuf2;
6288         NTSTATUS status;
6289         TALLOC_CTX *ctx = talloc_tos();
6290
6291         START_PROFILE(SMBcopy);
6292
6293         if (req->wct < 3) {
6294                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6295                 END_PROFILE(SMBcopy);
6296                 return;
6297         }
6298
6299         tid2 = SVAL(req->vwv+0, 0);
6300         ofun = SVAL(req->vwv+1, 0);
6301         flags = SVAL(req->vwv+2, 0);
6302
6303         p = (const char *)req->buf;
6304         p += srvstr_get_path_req_wcard(ctx, req, &name, p, STR_TERMINATE,
6305                                        &status, &source_has_wild);
6306         if (!NT_STATUS_IS_OK(status)) {
6307                 reply_nterror(req, status);
6308                 END_PROFILE(SMBcopy);
6309                 return;
6310         }
6311         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
6312                                        &status, &dest_has_wild);
6313         if (!NT_STATUS_IS_OK(status)) {
6314                 reply_nterror(req, status);
6315                 END_PROFILE(SMBcopy);
6316                 return;
6317         }
6318
6319         DEBUG(3,("reply_copy : %s -> %s\n",name,newname));
6320
6321         if (tid2 != conn->cnum) {
6322                 /* can't currently handle inter share copies XXXX */
6323                 DEBUG(3,("Rejecting inter-share copy\n"));
6324                 reply_doserror(req, ERRSRV, ERRinvdevice);
6325                 END_PROFILE(SMBcopy);
6326                 return;
6327         }
6328
6329         status = resolve_dfspath_wcard(ctx, conn,
6330                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6331                                        name,
6332                                        &name,
6333                                        &source_has_wild);
6334         if (!NT_STATUS_IS_OK(status)) {
6335                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6336                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6337                                         ERRSRV, ERRbadpath);
6338                         END_PROFILE(SMBcopy);
6339                         return;
6340                 }
6341                 reply_nterror(req, status);
6342                 END_PROFILE(SMBcopy);
6343                 return;
6344         }
6345
6346         status = resolve_dfspath_wcard(ctx, conn,
6347                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6348                                        newname,
6349                                        &newname,
6350                                        &dest_has_wild);
6351         if (!NT_STATUS_IS_OK(status)) {
6352                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6353                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6354                                         ERRSRV, ERRbadpath);
6355                         END_PROFILE(SMBcopy);
6356                         return;
6357                 }
6358                 reply_nterror(req, status);
6359                 END_PROFILE(SMBcopy);
6360                 return;
6361         }
6362
6363         status = unix_convert(ctx, conn, name, source_has_wild,
6364                         &name, NULL, &sbuf1);
6365         if (!NT_STATUS_IS_OK(status)) {
6366                 reply_nterror(req, status);
6367                 END_PROFILE(SMBcopy);
6368                 return;
6369         }
6370
6371         status = unix_convert(ctx, conn, newname, dest_has_wild,
6372                         &newname, NULL, &sbuf2);
6373         if (!NT_STATUS_IS_OK(status)) {
6374                 reply_nterror(req, status);
6375                 END_PROFILE(SMBcopy);
6376                 return;
6377         }
6378
6379         target_is_directory = VALID_STAT_OF_DIR(sbuf2);
6380
6381         if ((flags&1) && target_is_directory) {
6382                 reply_doserror(req, ERRDOS, ERRbadfile);
6383                 END_PROFILE(SMBcopy);
6384                 return;
6385         }
6386
6387         if ((flags&2) && !target_is_directory) {
6388                 reply_doserror(req, ERRDOS, ERRbadpath);
6389                 END_PROFILE(SMBcopy);
6390                 return;
6391         }
6392
6393         if ((flags&(1<<5)) && VALID_STAT_OF_DIR(sbuf1)) {
6394                 /* wants a tree copy! XXXX */
6395                 DEBUG(3,("Rejecting tree copy\n"));
6396                 reply_doserror(req, ERRSRV, ERRerror);
6397                 END_PROFILE(SMBcopy);
6398                 return;
6399         }
6400
6401         p = strrchr_m(name,'/');
6402         if (p != NULL) {
6403                 directory = talloc_strndup(ctx, name, PTR_DIFF(p, name));
6404                 mask = p+1;
6405         } else {
6406                 directory = talloc_strdup(ctx, "./");
6407                 mask = name;
6408         }
6409
6410         if (!directory) {
6411                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6412                 END_PROFILE(SMBcopy);
6413                 return;
6414         }
6415
6416         /*
6417          * We should only check the mangled cache
6418          * here if unix_convert failed. This means
6419          * that the path in 'mask' doesn't exist
6420          * on the file system and so we need to look
6421          * for a possible mangle. This patch from
6422          * Tine Smukavec <valentin.smukavec@hermes.si>.
6423          */
6424
6425         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
6426                 char *new_mask = NULL;
6427                 mangle_lookup_name_from_8_3(ctx,
6428                                         mask,
6429                                         &new_mask,
6430                                         conn->params );
6431                 if (new_mask) {
6432                         mask = new_mask;
6433                 }
6434         }
6435
6436         if (!source_has_wild) {
6437                 directory = talloc_asprintf_append(directory,
6438                                 "/%s",
6439                                 mask);
6440                 if (dest_has_wild) {
6441                         char *mod_newname = NULL;
6442                         if (!resolve_wildcards(ctx,
6443                                         directory,newname,&mod_newname)) {
6444                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6445                                 END_PROFILE(SMBcopy);
6446                                 return;
6447                         }
6448                         newname = mod_newname;
6449                 }
6450
6451                 status = check_name(conn, directory);
6452                 if (!NT_STATUS_IS_OK(status)) {
6453                         reply_nterror(req, status);
6454                         END_PROFILE(SMBcopy);
6455                         return;
6456                 }
6457
6458                 status = check_name(conn, newname);
6459                 if (!NT_STATUS_IS_OK(status)) {
6460                         reply_nterror(req, status);
6461                         END_PROFILE(SMBcopy);
6462                         return;
6463                 }
6464
6465                 status = copy_file(ctx,conn,directory,newname,ofun,
6466                                 count,target_is_directory);
6467
6468                 if(!NT_STATUS_IS_OK(status)) {
6469                         reply_nterror(req, status);
6470                         END_PROFILE(SMBcopy);
6471                         return;
6472                 } else {
6473                         count++;
6474                 }
6475         } else {
6476                 struct smb_Dir *dir_hnd = NULL;
6477                 const char *dname = NULL;
6478                 long offset = 0;
6479
6480                 if (strequal(mask,"????????.???")) {
6481                         mask = mask_star;
6482                 }
6483
6484                 status = check_name(conn, directory);
6485                 if (!NT_STATUS_IS_OK(status)) {
6486                         reply_nterror(req, status);
6487                         END_PROFILE(SMBcopy);
6488                         return;
6489                 }
6490
6491                 dir_hnd = OpenDir(talloc_tos(), conn, directory, mask, 0);
6492                 if (dir_hnd == NULL) {
6493                         status = map_nt_error_from_unix(errno);
6494                         reply_nterror(req, status);
6495                         END_PROFILE(SMBcopy);
6496                         return;
6497                 }
6498
6499                 error = ERRbadfile;
6500
6501                 while ((dname = ReadDirName(dir_hnd, &offset))) {
6502                         char *destname = NULL;
6503                         char *fname = NULL;
6504
6505                         if (ISDOT(dname) || ISDOTDOT(dname)) {
6506                                 continue;
6507                         }
6508
6509                         if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
6510                                 continue;
6511                         }
6512
6513                         if(!mask_match(dname, mask, conn->case_sensitive)) {
6514                                 continue;
6515                         }
6516
6517                         error = ERRnoaccess;
6518                         fname = talloc_asprintf(ctx,
6519                                         "%s/%s",
6520                                         directory,
6521                                         dname);
6522                         if (!fname) {
6523                                 TALLOC_FREE(dir_hnd);
6524                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6525                                 END_PROFILE(SMBcopy);
6526                                 return;
6527                         }
6528
6529                         if (!resolve_wildcards(ctx,
6530                                         fname,newname,&destname)) {
6531                                 continue;
6532                         }
6533                         if (!destname) {
6534                                 TALLOC_FREE(dir_hnd);
6535                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6536                                 END_PROFILE(SMBcopy);
6537                                 return;
6538                         }
6539
6540                         status = check_name(conn, fname);
6541                         if (!NT_STATUS_IS_OK(status)) {
6542                                 TALLOC_FREE(dir_hnd);
6543                                 reply_nterror(req, status);
6544                                 END_PROFILE(SMBcopy);
6545                                 return;
6546                         }
6547
6548                         status = check_name(conn, destname);
6549                         if (!NT_STATUS_IS_OK(status)) {
6550                                 TALLOC_FREE(dir_hnd);
6551                                 reply_nterror(req, status);
6552                                 END_PROFILE(SMBcopy);
6553                                 return;
6554                         }
6555
6556                         DEBUG(3,("reply_copy : doing copy on %s -> %s\n",fname, destname));
6557
6558                         status = copy_file(ctx,conn,fname,destname,ofun,
6559                                         count,target_is_directory);
6560                         if (NT_STATUS_IS_OK(status)) {
6561                                 count++;
6562                         }
6563                         TALLOC_FREE(fname);
6564                         TALLOC_FREE(destname);
6565                 }
6566                 TALLOC_FREE(dir_hnd);
6567         }
6568
6569         if (count == 0) {
6570                 if(err) {
6571                         /* Error on close... */
6572                         errno = err;
6573                         reply_unixerror(req, ERRHRD, ERRgeneral);
6574                         END_PROFILE(SMBcopy);
6575                         return;
6576                 }
6577
6578                 reply_doserror(req, ERRDOS, error);
6579                 END_PROFILE(SMBcopy);
6580                 return;
6581         }
6582
6583         reply_outbuf(req, 1, 0);
6584         SSVAL(req->outbuf,smb_vwv0,count);
6585
6586         END_PROFILE(SMBcopy);
6587         return;
6588 }
6589
6590 #undef DBGC_CLASS
6591 #define DBGC_CLASS DBGC_LOCKING
6592
6593 /****************************************************************************
6594  Get a lock pid, dealing with large count requests.
6595 ****************************************************************************/
6596
6597 uint32 get_lock_pid(const uint8_t *data, int data_offset,
6598                     bool large_file_format)
6599 {
6600         if(!large_file_format)
6601                 return (uint32)SVAL(data,SMB_LPID_OFFSET(data_offset));
6602         else
6603                 return (uint32)SVAL(data,SMB_LARGE_LPID_OFFSET(data_offset));
6604 }
6605
6606 /****************************************************************************
6607  Get a lock count, dealing with large count requests.
6608 ****************************************************************************/
6609
6610 uint64_t get_lock_count(const uint8_t *data, int data_offset,
6611                         bool large_file_format)
6612 {
6613         uint64_t count = 0;
6614
6615         if(!large_file_format) {
6616                 count = (uint64_t)IVAL(data,SMB_LKLEN_OFFSET(data_offset));
6617         } else {
6618
6619 #if defined(HAVE_LONGLONG)
6620                 count = (((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset))) << 32) |
6621                         ((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)));
6622 #else /* HAVE_LONGLONG */
6623
6624                 /*
6625                  * NT4.x seems to be broken in that it sends large file (64 bit)
6626                  * lockingX calls even if the CAP_LARGE_FILES was *not*
6627                  * negotiated. For boxes without large unsigned ints truncate the
6628                  * lock count by dropping the top 32 bits.
6629                  */
6630
6631                 if(IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)) != 0) {
6632                         DEBUG(3,("get_lock_count: truncating lock count (high)0x%x (low)0x%x to just low count.\n",
6633                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)),
6634                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)) ));
6635                                 SIVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset),0);
6636                 }
6637
6638                 count = (uint64_t)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset));
6639 #endif /* HAVE_LONGLONG */
6640         }
6641
6642         return count;
6643 }
6644
6645 #if !defined(HAVE_LONGLONG)
6646 /****************************************************************************
6647  Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-).
6648 ****************************************************************************/
6649
6650 static uint32 map_lock_offset(uint32 high, uint32 low)
6651 {
6652         unsigned int i;
6653         uint32 mask = 0;
6654         uint32 highcopy = high;
6655
6656         /*
6657          * Try and find out how many significant bits there are in high.
6658          */
6659
6660         for(i = 0; highcopy; i++)
6661                 highcopy >>= 1;
6662
6663         /*
6664          * We use 31 bits not 32 here as POSIX
6665          * lock offsets may not be negative.
6666          */
6667
6668         mask = (~0) << (31 - i);
6669
6670         if(low & mask)
6671                 return 0; /* Fail. */
6672
6673         high <<= (31 - i);
6674
6675         return (high|low);
6676 }
6677 #endif /* !defined(HAVE_LONGLONG) */
6678
6679 /****************************************************************************
6680  Get a lock offset, dealing with large offset requests.
6681 ****************************************************************************/
6682
6683 uint64_t get_lock_offset(const uint8_t *data, int data_offset,
6684                          bool large_file_format, bool *err)
6685 {
6686         uint64_t offset = 0;
6687
6688         *err = False;
6689
6690         if(!large_file_format) {
6691                 offset = (uint64_t)IVAL(data,SMB_LKOFF_OFFSET(data_offset));
6692         } else {
6693
6694 #if defined(HAVE_LONGLONG)
6695                 offset = (((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset))) << 32) |
6696                                 ((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset)));
6697 #else /* HAVE_LONGLONG */
6698
6699                 /*
6700                  * NT4.x seems to be broken in that it sends large file (64 bit)
6701                  * lockingX calls even if the CAP_LARGE_FILES was *not*
6702                  * negotiated. For boxes without large unsigned ints mangle the
6703                  * lock offset by mapping the top 32 bits onto the lower 32.
6704                  */
6705
6706                 if(IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset)) != 0) {
6707                         uint32 low = IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
6708                         uint32 high = IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset));
6709                         uint32 new_low = 0;
6710
6711                         if((new_low = map_lock_offset(high, low)) == 0) {
6712                                 *err = True;
6713                                 return (uint64_t)-1;
6714                         }
6715
6716                         DEBUG(3,("get_lock_offset: truncating lock offset (high)0x%x (low)0x%x to offset 0x%x.\n",
6717                                 (unsigned int)high, (unsigned int)low, (unsigned int)new_low ));
6718                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset),0);
6719                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset),new_low);
6720                 }
6721
6722                 offset = (uint64_t)IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
6723 #endif /* HAVE_LONGLONG */
6724         }
6725
6726         return offset;
6727 }
6728
6729 /****************************************************************************
6730  Reply to a lockingX request.
6731 ****************************************************************************/
6732
6733 void reply_lockingX(struct smb_request *req)
6734 {
6735         connection_struct *conn = req->conn;
6736         files_struct *fsp;
6737         unsigned char locktype;
6738         unsigned char oplocklevel;
6739         uint16 num_ulocks;
6740         uint16 num_locks;
6741         uint64_t count = 0, offset = 0;
6742         uint32 lock_pid;
6743         int32 lock_timeout;
6744         int i;
6745         const uint8_t *data;
6746         bool large_file_format;
6747         bool err;
6748         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
6749
6750         START_PROFILE(SMBlockingX);
6751
6752         if (req->wct < 8) {
6753                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6754                 END_PROFILE(SMBlockingX);
6755                 return;
6756         }
6757
6758         fsp = file_fsp(req, SVAL(req->vwv+2, 0));
6759         locktype = CVAL(req->vwv+3, 0);
6760         oplocklevel = CVAL(req->vwv+3, 1);
6761         num_ulocks = SVAL(req->vwv+6, 0);
6762         num_locks = SVAL(req->vwv+7, 0);
6763         lock_timeout = IVAL(req->vwv+4, 0);
6764         large_file_format = (locktype & LOCKING_ANDX_LARGE_FILES)?True:False;
6765
6766         if (!check_fsp(conn, req, fsp)) {
6767                 END_PROFILE(SMBlockingX);
6768                 return;
6769         }
6770
6771         data = req->buf;
6772
6773         if (locktype & LOCKING_ANDX_CHANGE_LOCKTYPE) {
6774                 /* we don't support these - and CANCEL_LOCK makes w2k
6775                    and XP reboot so I don't really want to be
6776                    compatible! (tridge) */
6777                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRnoatomiclocks));
6778                 END_PROFILE(SMBlockingX);
6779                 return;
6780         }
6781
6782         /* Check if this is an oplock break on a file
6783            we have granted an oplock on.
6784         */
6785         if ((locktype & LOCKING_ANDX_OPLOCK_RELEASE)) {
6786                 /* Client can insist on breaking to none. */
6787                 bool break_to_none = (oplocklevel == 0);
6788                 bool result;
6789
6790                 DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
6791                          "for fnum = %d\n", (unsigned int)oplocklevel,
6792                          fsp->fnum ));
6793
6794                 /*
6795                  * Make sure we have granted an exclusive or batch oplock on
6796                  * this file.
6797                  */
6798
6799                 if (fsp->oplock_type == 0) {
6800
6801                         /* The Samba4 nbench simulator doesn't understand
6802                            the difference between break to level2 and break
6803                            to none from level2 - it sends oplock break
6804                            replies in both cases. Don't keep logging an error
6805                            message here - just ignore it. JRA. */
6806
6807                         DEBUG(5,("reply_lockingX: Error : oplock break from "
6808                                  "client for fnum = %d (oplock=%d) and no "
6809                                  "oplock granted on this file (%s).\n",
6810                                  fsp->fnum, fsp->oplock_type, fsp->fsp_name));
6811
6812                         /* if this is a pure oplock break request then don't
6813                          * send a reply */
6814                         if (num_locks == 0 && num_ulocks == 0) {
6815                                 END_PROFILE(SMBlockingX);
6816                                 return;
6817                         } else {
6818                                 END_PROFILE(SMBlockingX);
6819                                 reply_doserror(req, ERRDOS, ERRlock);
6820                                 return;
6821                         }
6822                 }
6823
6824                 if ((fsp->sent_oplock_break == BREAK_TO_NONE_SENT) ||
6825                     (break_to_none)) {
6826                         result = remove_oplock(fsp);
6827                 } else {
6828                         result = downgrade_oplock(fsp);
6829                 }
6830
6831                 if (!result) {
6832                         DEBUG(0, ("reply_lockingX: error in removing "
6833                                   "oplock on file %s\n", fsp->fsp_name));
6834                         /* Hmmm. Is this panic justified? */
6835                         smb_panic("internal tdb error");
6836                 }
6837
6838                 reply_to_oplock_break_requests(fsp);
6839
6840                 /* if this is a pure oplock break request then don't send a
6841                  * reply */
6842                 if (num_locks == 0 && num_ulocks == 0) {
6843                         /* Sanity check - ensure a pure oplock break is not a
6844                            chained request. */
6845                         if(CVAL(req->vwv+0, 0) != 0xff)
6846                                 DEBUG(0,("reply_lockingX: Error : pure oplock "
6847                                          "break is a chained %d request !\n",
6848                                          (unsigned int)CVAL(req->vwv+0, 0)));
6849                         END_PROFILE(SMBlockingX);
6850                         return;
6851                 }
6852         }
6853
6854         /*
6855          * We do this check *after* we have checked this is not a oplock break
6856          * response message. JRA.
6857          */
6858
6859         release_level_2_oplocks_on_change(fsp);
6860
6861         if (req->buflen <
6862             (num_ulocks + num_locks) * (large_file_format ? 20 : 10)) {
6863                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6864                 END_PROFILE(SMBlockingX);
6865                 return;
6866         }
6867
6868         /* Data now points at the beginning of the list
6869            of smb_unlkrng structs */
6870         for(i = 0; i < (int)num_ulocks; i++) {
6871                 lock_pid = get_lock_pid( data, i, large_file_format);
6872                 count = get_lock_count( data, i, large_file_format);
6873                 offset = get_lock_offset( data, i, large_file_format, &err);
6874
6875                 /*
6876                  * There is no error code marked "stupid client bug".... :-).
6877                  */
6878                 if(err) {
6879                         END_PROFILE(SMBlockingX);
6880                         reply_doserror(req, ERRDOS, ERRnoaccess);
6881                         return;
6882                 }
6883
6884                 DEBUG(10,("reply_lockingX: unlock start=%.0f, len=%.0f for "
6885                           "pid %u, file %s\n", (double)offset, (double)count,
6886                           (unsigned int)lock_pid, fsp->fsp_name ));
6887
6888                 status = do_unlock(smbd_messaging_context(),
6889                                 fsp,
6890                                 lock_pid,
6891                                 count,
6892                                 offset,
6893                                 WINDOWS_LOCK);
6894
6895                 if (NT_STATUS_V(status)) {
6896                         END_PROFILE(SMBlockingX);
6897                         reply_nterror(req, status);
6898                         return;
6899                 }
6900         }
6901
6902         /* Setup the timeout in seconds. */
6903
6904         if (!lp_blocking_locks(SNUM(conn))) {
6905                 lock_timeout = 0;
6906         }
6907
6908         /* Now do any requested locks */
6909         data += ((large_file_format ? 20 : 10)*num_ulocks);
6910
6911         /* Data now points at the beginning of the list
6912            of smb_lkrng structs */
6913
6914         for(i = 0; i < (int)num_locks; i++) {
6915                 enum brl_type lock_type = ((locktype & LOCKING_ANDX_SHARED_LOCK) ?
6916                                 READ_LOCK:WRITE_LOCK);
6917                 lock_pid = get_lock_pid( data, i, large_file_format);
6918                 count = get_lock_count( data, i, large_file_format);
6919                 offset = get_lock_offset( data, i, large_file_format, &err);
6920
6921                 /*
6922                  * There is no error code marked "stupid client bug".... :-).
6923                  */
6924                 if(err) {
6925                         END_PROFILE(SMBlockingX);
6926                         reply_doserror(req, ERRDOS, ERRnoaccess);
6927                         return;
6928                 }
6929
6930                 DEBUG(10,("reply_lockingX: lock start=%.0f, len=%.0f for pid "
6931                           "%u, file %s timeout = %d\n", (double)offset,
6932                           (double)count, (unsigned int)lock_pid,
6933                           fsp->fsp_name, (int)lock_timeout ));
6934
6935                 if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
6936                         if (lp_blocking_locks(SNUM(conn))) {
6937
6938                                 /* Schedule a message to ourselves to
6939                                    remove the blocking lock record and
6940                                    return the right error. */
6941
6942                                 if (!blocking_lock_cancel(fsp,
6943                                                 lock_pid,
6944                                                 offset,
6945                                                 count,
6946                                                 WINDOWS_LOCK,
6947                                                 locktype,
6948                                                 NT_STATUS_FILE_LOCK_CONFLICT)) {
6949                                         END_PROFILE(SMBlockingX);
6950                                         reply_nterror(
6951                                                 req,
6952                                                 NT_STATUS_DOS(
6953                                                         ERRDOS,
6954                                                         ERRcancelviolation));
6955                                         return;
6956                                 }
6957                         }
6958                         /* Remove a matching pending lock. */
6959                         status = do_lock_cancel(fsp,
6960                                                 lock_pid,
6961                                                 count,
6962                                                 offset,
6963                                                 WINDOWS_LOCK);
6964                 } else {
6965                         bool blocking_lock = lock_timeout ? True : False;
6966                         bool defer_lock = False;
6967                         struct byte_range_lock *br_lck;
6968                         uint32 block_smbpid;
6969
6970                         br_lck = do_lock(smbd_messaging_context(),
6971                                         fsp,
6972                                         lock_pid,
6973                                         count,
6974                                         offset,
6975                                         lock_type,
6976                                         WINDOWS_LOCK,
6977                                         blocking_lock,
6978                                         &status,
6979                                         &block_smbpid);
6980
6981                         if (br_lck && blocking_lock && ERROR_WAS_LOCK_DENIED(status)) {
6982                                 /* Windows internal resolution for blocking locks seems
6983                                    to be about 200ms... Don't wait for less than that. JRA. */
6984                                 if (lock_timeout != -1 && lock_timeout < lp_lock_spin_time()) {
6985                                         lock_timeout = lp_lock_spin_time();
6986                                 }
6987                                 defer_lock = True;
6988                         }
6989
6990                         /* This heuristic seems to match W2K3 very well. If a
6991                            lock sent with timeout of zero would fail with NT_STATUS_FILE_LOCK_CONFLICT
6992                            it pretends we asked for a timeout of between 150 - 300 milliseconds as
6993                            far as I can tell. Replacement for do_lock_spin(). JRA. */
6994
6995                         if (br_lck && lp_blocking_locks(SNUM(conn)) && !blocking_lock &&
6996                                         NT_STATUS_EQUAL((status), NT_STATUS_FILE_LOCK_CONFLICT)) {
6997                                 defer_lock = True;
6998                                 lock_timeout = lp_lock_spin_time();
6999                         }
7000
7001                         if (br_lck && defer_lock) {
7002                                 /*
7003                                  * A blocking lock was requested. Package up
7004                                  * this smb into a queued request and push it
7005                                  * onto the blocking lock queue.
7006                                  */
7007                                 if(push_blocking_lock_request(br_lck,
7008                                                         req,
7009                                                         fsp,
7010                                                         lock_timeout,
7011                                                         i,
7012                                                         lock_pid,
7013                                                         lock_type,
7014                                                         WINDOWS_LOCK,
7015                                                         offset,
7016                                                         count,
7017                                                         block_smbpid)) {
7018                                         TALLOC_FREE(br_lck);
7019                                         END_PROFILE(SMBlockingX);
7020                                         return;
7021                                 }
7022                         }
7023
7024                         TALLOC_FREE(br_lck);
7025                 }
7026
7027                 if (NT_STATUS_V(status)) {
7028                         END_PROFILE(SMBlockingX);
7029                         reply_nterror(req, status);
7030                         return;
7031                 }
7032         }
7033
7034         /* If any of the above locks failed, then we must unlock
7035            all of the previous locks (X/Open spec). */
7036
7037         if (!(locktype & LOCKING_ANDX_CANCEL_LOCK) &&
7038                         (i != num_locks) &&
7039                         (num_locks != 0)) {
7040                 /*
7041                  * Ensure we don't do a remove on the lock that just failed,
7042                  * as under POSIX rules, if we have a lock already there, we
7043                  * will delete it (and we shouldn't) .....
7044                  */
7045                 for(i--; i >= 0; i--) {
7046                         lock_pid = get_lock_pid( data, i, large_file_format);
7047                         count = get_lock_count( data, i, large_file_format);
7048                         offset = get_lock_offset( data, i, large_file_format,
7049                                                   &err);
7050
7051                         /*
7052                          * There is no error code marked "stupid client
7053                          * bug".... :-).
7054                          */
7055                         if(err) {
7056                                 END_PROFILE(SMBlockingX);
7057                                 reply_doserror(req, ERRDOS, ERRnoaccess);
7058                                 return;
7059                         }
7060
7061                         do_unlock(smbd_messaging_context(),
7062                                 fsp,
7063                                 lock_pid,
7064                                 count,
7065                                 offset,
7066                                 WINDOWS_LOCK);
7067                 }
7068                 END_PROFILE(SMBlockingX);
7069                 reply_nterror(req, status);
7070                 return;
7071         }
7072
7073         reply_outbuf(req, 2, 0);
7074
7075         DEBUG(3, ("lockingX fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
7076                   fsp->fnum, (unsigned int)locktype, num_locks, num_ulocks));
7077
7078         END_PROFILE(SMBlockingX);
7079         chain_reply(req);
7080 }
7081
7082 #undef DBGC_CLASS
7083 #define DBGC_CLASS DBGC_ALL
7084
7085 /****************************************************************************
7086  Reply to a SMBreadbmpx (read block multiplex) request.
7087  Always reply with an error, if someone has a platform really needs this,
7088  please contact vl@samba.org
7089 ****************************************************************************/
7090
7091 void reply_readbmpx(struct smb_request *req)
7092 {
7093         START_PROFILE(SMBreadBmpx);
7094         reply_doserror(req, ERRSRV, ERRuseSTD);
7095         END_PROFILE(SMBreadBmpx);
7096         return;
7097 }
7098
7099 /****************************************************************************
7100  Reply to a SMBreadbs (read block multiplex secondary) request.
7101  Always reply with an error, if someone has a platform really needs this,
7102  please contact vl@samba.org
7103 ****************************************************************************/
7104
7105 void reply_readbs(struct smb_request *req)
7106 {
7107         START_PROFILE(SMBreadBs);
7108         reply_doserror(req, ERRSRV, ERRuseSTD);
7109         END_PROFILE(SMBreadBs);
7110         return;
7111 }
7112
7113 /****************************************************************************
7114  Reply to a SMBsetattrE.
7115 ****************************************************************************/
7116
7117 void reply_setattrE(struct smb_request *req)
7118 {
7119         connection_struct *conn = req->conn;
7120         struct smb_file_time ft;
7121         files_struct *fsp;
7122         SMB_STRUCT_STAT sbuf;
7123         NTSTATUS status;
7124
7125         START_PROFILE(SMBsetattrE);
7126         ZERO_STRUCT(ft);
7127
7128         if (req->wct < 7) {
7129                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7130                 END_PROFILE(SMBsetattrE);
7131                 return;
7132         }
7133
7134         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
7135
7136         if(!fsp || (fsp->conn != conn)) {
7137                 reply_doserror(req, ERRDOS, ERRbadfid);
7138                 END_PROFILE(SMBsetattrE);
7139                 return;
7140         }
7141
7142
7143         /*
7144          * Convert the DOS times into unix times.
7145          */
7146
7147         ft.atime = convert_time_t_to_timespec(
7148             srv_make_unix_date2(req->vwv+3));
7149         ft.mtime = convert_time_t_to_timespec(
7150             srv_make_unix_date2(req->vwv+5));
7151         ft.create_time = convert_time_t_to_timespec(
7152             srv_make_unix_date2(req->vwv+1));
7153
7154         reply_outbuf(req, 0, 0);
7155
7156         /*
7157          * Patch from Ray Frush <frush@engr.colostate.edu>
7158          * Sometimes times are sent as zero - ignore them.
7159          */
7160
7161         /* Ensure we have a valid stat struct for the source. */
7162         if (fsp->fh->fd != -1) {
7163                 if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
7164                         status = map_nt_error_from_unix(errno);
7165                         reply_nterror(req, status);
7166                         END_PROFILE(SMBsetattrE);
7167                         return;
7168                 }
7169         } else {
7170                 if (SMB_VFS_STAT(conn, fsp->fsp_name, &sbuf) == -1) {
7171                         status = map_nt_error_from_unix(errno);
7172                         reply_nterror(req, status);
7173                         END_PROFILE(SMBsetattrE);
7174                         return;
7175                 }
7176         }
7177
7178         status = smb_set_file_time(conn, fsp, fsp->fsp_name,
7179                                    &sbuf, &ft, true);
7180         if (!NT_STATUS_IS_OK(status)) {
7181                 reply_doserror(req, ERRDOS, ERRnoaccess);
7182                 END_PROFILE(SMBsetattrE);
7183                 return;
7184         }
7185
7186         DEBUG( 3, ( "reply_setattrE fnum=%d actime=%u modtime=%u "
7187                " createtime=%u\n",
7188                 fsp->fnum,
7189                 (unsigned int)ft.atime.tv_sec,
7190                 (unsigned int)ft.mtime.tv_sec,
7191                 (unsigned int)ft.create_time.tv_sec
7192                 ));
7193
7194         END_PROFILE(SMBsetattrE);
7195         return;
7196 }
7197
7198
7199 /* Back from the dead for OS/2..... JRA. */
7200
7201 /****************************************************************************
7202  Reply to a SMBwritebmpx (write block multiplex primary) request.
7203  Always reply with an error, if someone has a platform really needs this,
7204  please contact vl@samba.org
7205 ****************************************************************************/
7206
7207 void reply_writebmpx(struct smb_request *req)
7208 {
7209         START_PROFILE(SMBwriteBmpx);
7210         reply_doserror(req, ERRSRV, ERRuseSTD);
7211         END_PROFILE(SMBwriteBmpx);
7212         return;
7213 }
7214
7215 /****************************************************************************
7216  Reply to a SMBwritebs (write block multiplex secondary) request.
7217  Always reply with an error, if someone has a platform really needs this,
7218  please contact vl@samba.org
7219 ****************************************************************************/
7220
7221 void reply_writebs(struct smb_request *req)
7222 {
7223         START_PROFILE(SMBwriteBs);
7224         reply_doserror(req, ERRSRV, ERRuseSTD);
7225         END_PROFILE(SMBwriteBs);
7226         return;
7227 }
7228
7229 /****************************************************************************
7230  Reply to a SMBgetattrE.
7231 ****************************************************************************/
7232
7233 void reply_getattrE(struct smb_request *req)
7234 {
7235         connection_struct *conn = req->conn;
7236         SMB_STRUCT_STAT sbuf;
7237         int mode;
7238         files_struct *fsp;
7239         struct timespec create_ts;
7240
7241         START_PROFILE(SMBgetattrE);
7242
7243         if (req->wct < 1) {
7244                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7245                 END_PROFILE(SMBgetattrE);
7246                 return;
7247         }
7248
7249         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
7250
7251         if(!fsp || (fsp->conn != conn)) {
7252                 reply_doserror(req, ERRDOS, ERRbadfid);
7253                 END_PROFILE(SMBgetattrE);
7254                 return;
7255         }
7256
7257         /* Do an fstat on this file */
7258         if(fsp_stat(fsp, &sbuf)) {
7259                 reply_unixerror(req, ERRDOS, ERRnoaccess);
7260                 END_PROFILE(SMBgetattrE);
7261                 return;
7262         }
7263
7264         mode = dos_mode(conn,fsp->fsp_name,&sbuf);
7265
7266         /*
7267          * Convert the times into dos times. Set create
7268          * date to be last modify date as UNIX doesn't save
7269          * this.
7270          */
7271
7272         reply_outbuf(req, 11, 0);
7273
7274         create_ts = get_create_timespec(&sbuf,
7275                                   lp_fake_dir_create_times(SNUM(conn)));
7276         srv_put_dos_date2((char *)req->outbuf, smb_vwv0, create_ts.tv_sec);
7277         srv_put_dos_date2((char *)req->outbuf, smb_vwv2, sbuf.st_atime);
7278         /* Should we check pending modtime here ? JRA */
7279         srv_put_dos_date2((char *)req->outbuf, smb_vwv4, sbuf.st_mtime);
7280
7281         if (mode & aDIR) {
7282                 SIVAL(req->outbuf, smb_vwv6, 0);
7283                 SIVAL(req->outbuf, smb_vwv8, 0);
7284         } else {
7285                 uint32 allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn,fsp, &sbuf);
7286                 SIVAL(req->outbuf, smb_vwv6, (uint32)sbuf.st_size);
7287                 SIVAL(req->outbuf, smb_vwv8, allocation_size);
7288         }
7289         SSVAL(req->outbuf,smb_vwv10, mode);
7290
7291         DEBUG( 3, ( "reply_getattrE fnum=%d\n", fsp->fnum));
7292
7293         END_PROFILE(SMBgetattrE);
7294         return;
7295 }