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