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         doff = SVAL(inbuf,smb_vwv11);
3877
3878         numtowrite = SVAL(inbuf,smb_vwv10);
3879
3880         if (len > doff && len - doff > 0xFFFF) {
3881                 numtowrite |= (((size_t)SVAL(inbuf,smb_vwv9))<<16);
3882         }
3883
3884         if (numtowrite == 0) {
3885                 DEBUG(10,("is_valid_writeX_buffer: zero write\n"));
3886                 return false;
3887         }
3888
3889         /* Ensure the sizes match up. */
3890         if (doff < STANDARD_WRITE_AND_X_HEADER_SIZE) {
3891                 /* no pad byte...old smbclient :-( */
3892                 DEBUG(10,("is_valid_writeX_buffer: small doff %u (min %u)\n",
3893                         (unsigned int)doff,
3894                         (unsigned int)STANDARD_WRITE_AND_X_HEADER_SIZE));
3895                 return false;
3896         }
3897
3898         if (len - doff != numtowrite) {
3899                 DEBUG(10,("is_valid_writeX_buffer: doff mismatch "
3900                         "len = %u, doff = %u, numtowrite = %u\n",
3901                         (unsigned int)len,
3902                         (unsigned int)doff,
3903                         (unsigned int)numtowrite ));
3904                 return false;
3905         }
3906
3907         DEBUG(10,("is_valid_writeX_buffer: true "
3908                 "len = %u, doff = %u, numtowrite = %u\n",
3909                 (unsigned int)len,
3910                 (unsigned int)doff,
3911                 (unsigned int)numtowrite ));
3912
3913         return true;
3914 }
3915
3916 /****************************************************************************
3917  Reply to a write and X.
3918 ****************************************************************************/
3919
3920 void reply_write_and_X(struct smb_request *req)
3921 {
3922         connection_struct *conn = req->conn;
3923         files_struct *fsp;
3924         SMB_OFF_T startpos;
3925         size_t numtowrite;
3926         bool write_through;
3927         ssize_t nwritten;
3928         unsigned int smb_doff;
3929         unsigned int smblen;
3930         char *data;
3931         NTSTATUS status;
3932
3933         START_PROFILE(SMBwriteX);
3934
3935         if ((req->wct != 12) && (req->wct != 14)) {
3936                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3937                 END_PROFILE(SMBwriteX);
3938                 return;
3939         }
3940
3941         numtowrite = SVAL(req->vwv+10, 0);
3942         smb_doff = SVAL(req->vwv+11, 0);
3943         smblen = smb_len(req->inbuf);
3944
3945         if (req->unread_bytes > 0xFFFF ||
3946                         (smblen > smb_doff &&
3947                                 smblen - smb_doff > 0xFFFF)) {
3948                 numtowrite |= (((size_t)SVAL(req->vwv+9, 0))<<16);
3949         }
3950
3951         if (req->unread_bytes) {
3952                 /* Can't do a recvfile write on IPC$ */
3953                 if (IS_IPC(conn)) {
3954                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3955                         END_PROFILE(SMBwriteX);
3956                         return;
3957                 }
3958                 if (numtowrite != req->unread_bytes) {
3959                         reply_doserror(req, ERRDOS, ERRbadmem);
3960                         END_PROFILE(SMBwriteX);
3961                         return;
3962                 }
3963         } else {
3964                 if (smb_doff > smblen || smb_doff + numtowrite < numtowrite ||
3965                                 smb_doff + numtowrite > smblen) {
3966                         reply_doserror(req, ERRDOS, ERRbadmem);
3967                         END_PROFILE(SMBwriteX);
3968                         return;
3969                 }
3970         }
3971
3972         /* If it's an IPC, pass off the pipe handler. */
3973         if (IS_IPC(conn)) {
3974                 if (req->unread_bytes) {
3975                         reply_doserror(req, ERRDOS, ERRbadmem);
3976                         END_PROFILE(SMBwriteX);
3977                         return;
3978                 }
3979                 reply_pipe_write_and_X(req);
3980                 END_PROFILE(SMBwriteX);
3981                 return;
3982         }
3983
3984         fsp = file_fsp(req, SVAL(req->vwv+2, 0));
3985         startpos = IVAL_TO_SMB_OFF_T(req->vwv+3, 0);
3986         write_through = BITSETW(req->vwv+7,0);
3987
3988         if (!check_fsp(conn, req, fsp)) {
3989                 END_PROFILE(SMBwriteX);
3990                 return;
3991         }
3992
3993         if (!CHECK_WRITE(fsp)) {
3994                 reply_doserror(req, ERRDOS, ERRbadaccess);
3995                 END_PROFILE(SMBwriteX);
3996                 return;
3997         }
3998
3999         data = smb_base(req->inbuf) + smb_doff;
4000
4001         if(req->wct == 14) {
4002 #ifdef LARGE_SMB_OFF_T
4003                 /*
4004                  * This is a large offset (64 bit) write.
4005                  */
4006                 startpos |= (((SMB_OFF_T)IVAL(req->vwv+12, 0)) << 32);
4007
4008 #else /* !LARGE_SMB_OFF_T */
4009
4010                 /*
4011                  * Ensure we haven't been sent a >32 bit offset.
4012                  */
4013
4014                 if(IVAL(req->vwv+12, 0) != 0) {
4015                         DEBUG(0,("reply_write_and_X - large offset (%x << 32) "
4016                                  "used and we don't support 64 bit offsets.\n",
4017                                  (unsigned int)IVAL(req->vwv+12, 0) ));
4018                         reply_doserror(req, ERRDOS, ERRbadaccess);
4019                         END_PROFILE(SMBwriteX);
4020                         return;
4021                 }
4022
4023 #endif /* LARGE_SMB_OFF_T */
4024         }
4025
4026         if (is_locked(fsp,(uint32)req->smbpid,
4027                       (uint64_t)numtowrite,
4028                       (uint64_t)startpos, WRITE_LOCK)) {
4029                 reply_doserror(req, ERRDOS, ERRlock);
4030                 END_PROFILE(SMBwriteX);
4031                 return;
4032         }
4033
4034         /* X/Open SMB protocol says that, unlike SMBwrite
4035         if the length is zero then NO truncation is
4036         done, just a write of zero. To truncate a file,
4037         use SMBwrite. */
4038
4039         if(numtowrite == 0) {
4040                 nwritten = 0;
4041         } else {
4042
4043                 if ((req->unread_bytes == 0) &&
4044                     schedule_aio_write_and_X(conn, req, fsp, data, startpos,
4045                                              numtowrite)) {
4046                         END_PROFILE(SMBwriteX);
4047                         return;
4048                 }
4049
4050                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4051         }
4052
4053         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
4054                 reply_unixerror(req, ERRHRD, ERRdiskfull);
4055                 END_PROFILE(SMBwriteX);
4056                 return;
4057         }
4058
4059         reply_outbuf(req, 6, 0);
4060         SSVAL(req->outbuf,smb_vwv2,nwritten);
4061         SSVAL(req->outbuf,smb_vwv4,nwritten>>16);
4062
4063         if (nwritten < (ssize_t)numtowrite) {
4064                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
4065                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
4066         }
4067
4068         DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
4069                 fsp->fnum, (int)numtowrite, (int)nwritten));
4070
4071         status = sync_file(conn, fsp, write_through);
4072         if (!NT_STATUS_IS_OK(status)) {
4073                 DEBUG(5,("reply_write_and_X: sync_file for %s returned %s\n",
4074                         fsp->fsp_name, nt_errstr(status) ));
4075                 reply_nterror(req, status);
4076                 END_PROFILE(SMBwriteX);
4077                 return;
4078         }
4079
4080         END_PROFILE(SMBwriteX);
4081         chain_reply(req);
4082         return;
4083 }
4084
4085 /****************************************************************************
4086  Reply to a lseek.
4087 ****************************************************************************/
4088
4089 void reply_lseek(struct smb_request *req)
4090 {
4091         connection_struct *conn = req->conn;
4092         SMB_OFF_T startpos;
4093         SMB_OFF_T res= -1;
4094         int mode,umode;
4095         files_struct *fsp;
4096
4097         START_PROFILE(SMBlseek);
4098
4099         if (req->wct < 4) {
4100                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4101                 END_PROFILE(SMBlseek);
4102                 return;
4103         }
4104
4105         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4106
4107         if (!check_fsp(conn, req, fsp)) {
4108                 return;
4109         }
4110
4111         flush_write_cache(fsp, SEEK_FLUSH);
4112
4113         mode = SVAL(req->vwv+1, 0) & 3;
4114         /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
4115         startpos = (SMB_OFF_T)IVALS(req->vwv+2, 0);
4116
4117         switch (mode) {
4118                 case 0:
4119                         umode = SEEK_SET;
4120                         res = startpos;
4121                         break;
4122                 case 1:
4123                         umode = SEEK_CUR;
4124                         res = fsp->fh->pos + startpos;
4125                         break;
4126                 case 2:
4127                         umode = SEEK_END;
4128                         break;
4129                 default:
4130                         umode = SEEK_SET;
4131                         res = startpos;
4132                         break;
4133         }
4134
4135         if (umode == SEEK_END) {
4136                 if((res = SMB_VFS_LSEEK(fsp,startpos,umode)) == -1) {
4137                         if(errno == EINVAL) {
4138                                 SMB_OFF_T current_pos = startpos;
4139                                 SMB_STRUCT_STAT sbuf;
4140
4141                                 if(SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
4142                                         reply_unixerror(req, ERRDOS,
4143                                                         ERRnoaccess);
4144                                         END_PROFILE(SMBlseek);
4145                                         return;
4146                                 }
4147
4148                                 current_pos += sbuf.st_size;
4149                                 if(current_pos < 0)
4150                                         res = SMB_VFS_LSEEK(fsp,0,SEEK_SET);
4151                         }
4152                 }
4153
4154                 if(res == -1) {
4155                         reply_unixerror(req, ERRDOS, ERRnoaccess);
4156                         END_PROFILE(SMBlseek);
4157                         return;
4158                 }
4159         }
4160
4161         fsp->fh->pos = res;
4162
4163         reply_outbuf(req, 2, 0);
4164         SIVAL(req->outbuf,smb_vwv0,res);
4165
4166         DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
4167                 fsp->fnum, (double)startpos, (double)res, mode));
4168
4169         END_PROFILE(SMBlseek);
4170         return;
4171 }
4172
4173 /****************************************************************************
4174  Reply to a flush.
4175 ****************************************************************************/
4176
4177 void reply_flush(struct smb_request *req)
4178 {
4179         connection_struct *conn = req->conn;
4180         uint16 fnum;
4181         files_struct *fsp;
4182
4183         START_PROFILE(SMBflush);
4184
4185         if (req->wct < 1) {
4186                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4187                 return;
4188         }
4189
4190         fnum = SVAL(req->vwv+0, 0);
4191         fsp = file_fsp(req, fnum);
4192
4193         if ((fnum != 0xFFFF) && !check_fsp(conn, req, fsp)) {
4194                 return;
4195         }
4196
4197         if (!fsp) {
4198                 file_sync_all(conn);
4199         } else {
4200                 NTSTATUS status = sync_file(conn, fsp, True);
4201                 if (!NT_STATUS_IS_OK(status)) {
4202                         DEBUG(5,("reply_flush: sync_file for %s returned %s\n",
4203                                 fsp->fsp_name, nt_errstr(status) ));
4204                         reply_nterror(req, status);
4205                         END_PROFILE(SMBflush);
4206                         return;
4207                 }
4208         }
4209
4210         reply_outbuf(req, 0, 0);
4211
4212         DEBUG(3,("flush\n"));
4213         END_PROFILE(SMBflush);
4214         return;
4215 }
4216
4217 /****************************************************************************
4218  Reply to a exit.
4219  conn POINTER CAN BE NULL HERE !
4220 ****************************************************************************/
4221
4222 void reply_exit(struct smb_request *req)
4223 {
4224         START_PROFILE(SMBexit);
4225
4226         file_close_pid(req->smbpid, req->vuid);
4227
4228         reply_outbuf(req, 0, 0);
4229
4230         DEBUG(3,("exit\n"));
4231
4232         END_PROFILE(SMBexit);
4233         return;
4234 }
4235
4236 /****************************************************************************
4237  Reply to a close - has to deal with closing a directory opened by NT SMB's.
4238 ****************************************************************************/
4239
4240 void reply_close(struct smb_request *req)
4241 {
4242         connection_struct *conn = req->conn;
4243         NTSTATUS status = NT_STATUS_OK;
4244         files_struct *fsp = NULL;
4245         START_PROFILE(SMBclose);
4246
4247         if (req->wct < 3) {
4248                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4249                 END_PROFILE(SMBclose);
4250                 return;
4251         }
4252
4253         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4254
4255         /*
4256          * We can only use check_fsp if we know it's not a directory.
4257          */
4258
4259         if(!fsp || (fsp->conn != conn) || (fsp->vuid != req->vuid)) {
4260                 reply_doserror(req, ERRDOS, ERRbadfid);
4261                 END_PROFILE(SMBclose);
4262                 return;
4263         }
4264
4265         if(fsp->is_directory) {
4266                 /*
4267                  * Special case - close NT SMB directory handle.
4268                  */
4269                 DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
4270                 status = close_file(req, fsp, NORMAL_CLOSE);
4271         } else {
4272                 time_t t;
4273                 /*
4274                  * Close ordinary file.
4275                  */
4276
4277                 DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
4278                          fsp->fh->fd, fsp->fnum,
4279                          conn->num_files_open));
4280
4281                 /*
4282                  * Take care of any time sent in the close.
4283                  */
4284
4285                 t = srv_make_unix_date3(req->vwv+1);
4286                 set_close_write_time(fsp, convert_time_t_to_timespec(t));
4287
4288                 /*
4289                  * close_file() returns the unix errno if an error
4290                  * was detected on close - normally this is due to
4291                  * a disk full error. If not then it was probably an I/O error.
4292                  */
4293
4294                 status = close_file(req, fsp, NORMAL_CLOSE);
4295         }
4296
4297         if (!NT_STATUS_IS_OK(status)) {
4298                 reply_nterror(req, status);
4299                 END_PROFILE(SMBclose);
4300                 return;
4301         }
4302
4303         reply_outbuf(req, 0, 0);
4304         END_PROFILE(SMBclose);
4305         return;
4306 }
4307
4308 /****************************************************************************
4309  Reply to a writeclose (Core+ protocol).
4310 ****************************************************************************/
4311
4312 void reply_writeclose(struct smb_request *req)
4313 {
4314         connection_struct *conn = req->conn;
4315         size_t numtowrite;
4316         ssize_t nwritten = -1;
4317         NTSTATUS close_status = NT_STATUS_OK;
4318         SMB_OFF_T startpos;
4319         const char *data;
4320         struct timespec mtime;
4321         files_struct *fsp;
4322
4323         START_PROFILE(SMBwriteclose);
4324
4325         if (req->wct < 6) {
4326                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4327                 END_PROFILE(SMBwriteclose);
4328                 return;
4329         }
4330
4331         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4332
4333         if (!check_fsp(conn, req, fsp)) {
4334                 END_PROFILE(SMBwriteclose);
4335                 return;
4336         }
4337         if (!CHECK_WRITE(fsp)) {
4338                 reply_doserror(req, ERRDOS,ERRbadaccess);
4339                 END_PROFILE(SMBwriteclose);
4340                 return;
4341         }
4342
4343         numtowrite = SVAL(req->vwv+1, 0);
4344         startpos = IVAL_TO_SMB_OFF_T(req->vwv+2, 0);
4345         mtime = convert_time_t_to_timespec(srv_make_unix_date3(req->vwv+4));
4346         data = (const char *)req->buf + 1;
4347
4348         if (numtowrite
4349             && is_locked(fsp, (uint32)req->smbpid, (uint64_t)numtowrite,
4350                          (uint64_t)startpos, WRITE_LOCK)) {
4351                 reply_doserror(req, ERRDOS,ERRlock);
4352                 END_PROFILE(SMBwriteclose);
4353                 return;
4354         }
4355
4356         nwritten = write_file(req,fsp,data,startpos,numtowrite);
4357
4358         set_close_write_time(fsp, mtime);
4359
4360         /*
4361          * More insanity. W2K only closes the file if writelen > 0.
4362          * JRA.
4363          */
4364
4365         if (numtowrite) {
4366                 DEBUG(3,("reply_writeclose: zero length write doesn't close file %s\n",
4367                         fsp->fsp_name ));
4368                 close_status = close_file(req, fsp, NORMAL_CLOSE);
4369         }
4370
4371         DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
4372                  fsp->fnum, (int)numtowrite, (int)nwritten,
4373                  conn->num_files_open));
4374
4375         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
4376                 reply_doserror(req, ERRHRD, ERRdiskfull);
4377                 END_PROFILE(SMBwriteclose);
4378                 return;
4379         }
4380
4381         if(!NT_STATUS_IS_OK(close_status)) {
4382                 reply_nterror(req, close_status);
4383                 END_PROFILE(SMBwriteclose);
4384                 return;
4385         }
4386
4387         reply_outbuf(req, 1, 0);
4388
4389         SSVAL(req->outbuf,smb_vwv0,nwritten);
4390         END_PROFILE(SMBwriteclose);
4391         return;
4392 }
4393
4394 #undef DBGC_CLASS
4395 #define DBGC_CLASS DBGC_LOCKING
4396
4397 /****************************************************************************
4398  Reply to a lock.
4399 ****************************************************************************/
4400
4401 void reply_lock(struct smb_request *req)
4402 {
4403         connection_struct *conn = req->conn;
4404         uint64_t count,offset;
4405         NTSTATUS status;
4406         files_struct *fsp;
4407         struct byte_range_lock *br_lck = NULL;
4408
4409         START_PROFILE(SMBlock);
4410
4411         if (req->wct < 5) {
4412                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4413                 END_PROFILE(SMBlock);
4414                 return;
4415         }
4416
4417         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4418
4419         if (!check_fsp(conn, req, fsp)) {
4420                 END_PROFILE(SMBlock);
4421                 return;
4422         }
4423
4424         release_level_2_oplocks_on_change(fsp);
4425
4426         count = (uint64_t)IVAL(req->vwv+1, 0);
4427         offset = (uint64_t)IVAL(req->vwv+3, 0);
4428
4429         DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4430                  fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
4431
4432         br_lck = do_lock(smbd_messaging_context(),
4433                         fsp,
4434                         req->smbpid,
4435                         count,
4436                         offset,
4437                         WRITE_LOCK,
4438                         WINDOWS_LOCK,
4439                         False, /* Non-blocking lock. */
4440                         &status,
4441                         NULL);
4442
4443         TALLOC_FREE(br_lck);
4444
4445         if (NT_STATUS_V(status)) {
4446                 reply_nterror(req, status);
4447                 END_PROFILE(SMBlock);
4448                 return;
4449         }
4450
4451         reply_outbuf(req, 0, 0);
4452
4453         END_PROFILE(SMBlock);
4454         return;
4455 }
4456
4457 /****************************************************************************
4458  Reply to a unlock.
4459 ****************************************************************************/
4460
4461 void reply_unlock(struct smb_request *req)
4462 {
4463         connection_struct *conn = req->conn;
4464         uint64_t count,offset;
4465         NTSTATUS status;
4466         files_struct *fsp;
4467
4468         START_PROFILE(SMBunlock);
4469
4470         if (req->wct < 5) {
4471                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4472                 END_PROFILE(SMBunlock);
4473                 return;
4474         }
4475
4476         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4477
4478         if (!check_fsp(conn, req, fsp)) {
4479                 END_PROFILE(SMBunlock);
4480                 return;
4481         }
4482
4483         count = (uint64_t)IVAL(req->vwv+1, 0);
4484         offset = (uint64_t)IVAL(req->vwv+3, 0);
4485
4486         status = do_unlock(smbd_messaging_context(),
4487                         fsp,
4488                         req->smbpid,
4489                         count,
4490                         offset,
4491                         WINDOWS_LOCK);
4492
4493         if (NT_STATUS_V(status)) {
4494                 reply_nterror(req, status);
4495                 END_PROFILE(SMBunlock);
4496                 return;
4497         }
4498
4499         DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4500                     fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
4501
4502         reply_outbuf(req, 0, 0);
4503
4504         END_PROFILE(SMBunlock);
4505         return;
4506 }
4507
4508 #undef DBGC_CLASS
4509 #define DBGC_CLASS DBGC_ALL
4510
4511 /****************************************************************************
4512  Reply to a tdis.
4513  conn POINTER CAN BE NULL HERE !
4514 ****************************************************************************/
4515
4516 void reply_tdis(struct smb_request *req)
4517 {
4518         connection_struct *conn = req->conn;
4519         START_PROFILE(SMBtdis);
4520
4521         if (!conn) {
4522                 DEBUG(4,("Invalid connection in tdis\n"));
4523                 reply_doserror(req, ERRSRV, ERRinvnid);
4524                 END_PROFILE(SMBtdis);
4525                 return;
4526         }
4527
4528         conn->used = False;
4529
4530         close_cnum(conn,req->vuid);
4531         req->conn = NULL;
4532
4533         reply_outbuf(req, 0, 0);
4534         END_PROFILE(SMBtdis);
4535         return;
4536 }
4537
4538 /****************************************************************************
4539  Reply to a echo.
4540  conn POINTER CAN BE NULL HERE !
4541 ****************************************************************************/
4542
4543 void reply_echo(struct smb_request *req)
4544 {
4545         connection_struct *conn = req->conn;
4546         int smb_reverb;
4547         int seq_num;
4548
4549         START_PROFILE(SMBecho);
4550
4551         if (req->wct < 1) {
4552                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4553                 END_PROFILE(SMBecho);
4554                 return;
4555         }
4556
4557         smb_reverb = SVAL(req->vwv+0, 0);
4558
4559         reply_outbuf(req, 1, req->buflen);
4560
4561         /* copy any incoming data back out */
4562         if (req->buflen > 0) {
4563                 memcpy(smb_buf(req->outbuf), req->buf, req->buflen);
4564         }
4565
4566         if (smb_reverb > 100) {
4567                 DEBUG(0,("large reverb (%d)?? Setting to 100\n",smb_reverb));
4568                 smb_reverb = 100;
4569         }
4570
4571         for (seq_num =1 ; seq_num <= smb_reverb ; seq_num++) {
4572                 SSVAL(req->outbuf,smb_vwv0,seq_num);
4573
4574                 show_msg((char *)req->outbuf);
4575                 if (!srv_send_smb(smbd_server_fd(),
4576                                 (char *)req->outbuf,
4577                                 IS_CONN_ENCRYPTED(conn)||req->encrypted))
4578                         exit_server_cleanly("reply_echo: srv_send_smb failed.");
4579         }
4580
4581         DEBUG(3,("echo %d times\n", smb_reverb));
4582
4583         TALLOC_FREE(req->outbuf);
4584
4585         END_PROFILE(SMBecho);
4586         return;
4587 }
4588
4589 /****************************************************************************
4590  Reply to a printopen.
4591 ****************************************************************************/
4592
4593 void reply_printopen(struct smb_request *req)
4594 {
4595         connection_struct *conn = req->conn;
4596         files_struct *fsp;
4597         NTSTATUS status;
4598
4599         START_PROFILE(SMBsplopen);
4600
4601         if (req->wct < 2) {
4602                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4603                 END_PROFILE(SMBsplopen);
4604                 return;
4605         }
4606
4607         if (!CAN_PRINT(conn)) {
4608                 reply_doserror(req, ERRDOS, ERRnoaccess);
4609                 END_PROFILE(SMBsplopen);
4610                 return;
4611         }
4612
4613         status = file_new(req, conn, &fsp);
4614         if(!NT_STATUS_IS_OK(status)) {
4615                 reply_nterror(req, status);
4616                 END_PROFILE(SMBsplopen);
4617                 return;
4618         }
4619
4620         /* Open for exclusive use, write only. */
4621         status = print_fsp_open(req, conn, NULL, req->vuid, fsp);
4622
4623         if (!NT_STATUS_IS_OK(status)) {
4624                 reply_nterror(req, status);
4625                 END_PROFILE(SMBsplopen);
4626                 return;
4627         }
4628
4629         reply_outbuf(req, 1, 0);
4630         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
4631
4632         DEBUG(3,("openprint fd=%d fnum=%d\n",
4633                  fsp->fh->fd, fsp->fnum));
4634
4635         END_PROFILE(SMBsplopen);
4636         return;
4637 }
4638
4639 /****************************************************************************
4640  Reply to a printclose.
4641 ****************************************************************************/
4642
4643 void reply_printclose(struct smb_request *req)
4644 {
4645         connection_struct *conn = req->conn;
4646         files_struct *fsp;
4647         NTSTATUS status;
4648
4649         START_PROFILE(SMBsplclose);
4650
4651         if (req->wct < 1) {
4652                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4653                 END_PROFILE(SMBsplclose);
4654                 return;
4655         }
4656
4657         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4658
4659         if (!check_fsp(conn, req, fsp)) {
4660                 END_PROFILE(SMBsplclose);
4661                 return;
4662         }
4663
4664         if (!CAN_PRINT(conn)) {
4665                 reply_nterror(req, NT_STATUS_DOS(ERRSRV, ERRerror));
4666                 END_PROFILE(SMBsplclose);
4667                 return;
4668         }
4669
4670         DEBUG(3,("printclose fd=%d fnum=%d\n",
4671                  fsp->fh->fd,fsp->fnum));
4672
4673         status = close_file(req, fsp, NORMAL_CLOSE);
4674
4675         if(!NT_STATUS_IS_OK(status)) {
4676                 reply_nterror(req, status);
4677                 END_PROFILE(SMBsplclose);
4678                 return;
4679         }
4680
4681         reply_outbuf(req, 0, 0);
4682
4683         END_PROFILE(SMBsplclose);
4684         return;
4685 }
4686
4687 /****************************************************************************
4688  Reply to a printqueue.
4689 ****************************************************************************/
4690
4691 void reply_printqueue(struct smb_request *req)
4692 {
4693         connection_struct *conn = req->conn;
4694         int max_count;
4695         int start_index;
4696
4697         START_PROFILE(SMBsplretq);
4698
4699         if (req->wct < 2) {
4700                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4701                 END_PROFILE(SMBsplretq);
4702                 return;
4703         }
4704
4705         max_count = SVAL(req->vwv+0, 0);
4706         start_index = SVAL(req->vwv+1, 0);
4707
4708         /* we used to allow the client to get the cnum wrong, but that
4709            is really quite gross and only worked when there was only
4710            one printer - I think we should now only accept it if they
4711            get it right (tridge) */
4712         if (!CAN_PRINT(conn)) {
4713                 reply_doserror(req, ERRDOS, ERRnoaccess);
4714                 END_PROFILE(SMBsplretq);
4715                 return;
4716         }
4717
4718         reply_outbuf(req, 2, 3);
4719         SSVAL(req->outbuf,smb_vwv0,0);
4720         SSVAL(req->outbuf,smb_vwv1,0);
4721         SCVAL(smb_buf(req->outbuf),0,1);
4722         SSVAL(smb_buf(req->outbuf),1,0);
4723
4724         DEBUG(3,("printqueue start_index=%d max_count=%d\n",
4725                  start_index, max_count));
4726
4727         {
4728                 print_queue_struct *queue = NULL;
4729                 print_status_struct status;
4730                 int count = print_queue_status(SNUM(conn), &queue, &status);
4731                 int num_to_get = ABS(max_count);
4732                 int first = (max_count>0?start_index:start_index+max_count+1);
4733                 int i;
4734
4735                 if (first >= count)
4736                         num_to_get = 0;
4737                 else
4738                         num_to_get = MIN(num_to_get,count-first);
4739
4740
4741                 for (i=first;i<first+num_to_get;i++) {
4742                         char blob[28];
4743                         char *p = blob;
4744
4745                         srv_put_dos_date2(p,0,queue[i].time);
4746                         SCVAL(p,4,(queue[i].status==LPQ_PRINTING?2:3));
4747                         SSVAL(p,5, queue[i].job);
4748                         SIVAL(p,7,queue[i].size);
4749                         SCVAL(p,11,0);
4750                         srvstr_push(blob, req->flags2, p+12,
4751                                     queue[i].fs_user, 16, STR_ASCII);
4752
4753                         if (message_push_blob(
4754                                     &req->outbuf,
4755                                     data_blob_const(
4756                                             blob, sizeof(blob))) == -1) {
4757                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
4758                                 END_PROFILE(SMBsplretq);
4759                                 return;
4760                         }
4761                 }
4762
4763                 if (count > 0) {
4764                         SSVAL(req->outbuf,smb_vwv0,count);
4765                         SSVAL(req->outbuf,smb_vwv1,
4766                               (max_count>0?first+count:first-1));
4767                         SCVAL(smb_buf(req->outbuf),0,1);
4768                         SSVAL(smb_buf(req->outbuf),1,28*count);
4769                 }
4770
4771                 SAFE_FREE(queue);
4772
4773                 DEBUG(3,("%d entries returned in queue\n",count));
4774         }
4775
4776         END_PROFILE(SMBsplretq);
4777         return;
4778 }
4779
4780 /****************************************************************************
4781  Reply to a printwrite.
4782 ****************************************************************************/
4783
4784 void reply_printwrite(struct smb_request *req)
4785 {
4786         connection_struct *conn = req->conn;
4787         int numtowrite;
4788         const char *data;
4789         files_struct *fsp;
4790
4791         START_PROFILE(SMBsplwr);
4792
4793         if (req->wct < 1) {
4794                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4795                 END_PROFILE(SMBsplwr);
4796                 return;
4797         }
4798
4799         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
4800
4801         if (!check_fsp(conn, req, fsp)) {
4802                 END_PROFILE(SMBsplwr);
4803                 return;
4804         }
4805
4806         if (!CAN_PRINT(conn)) {
4807                 reply_doserror(req, ERRDOS, ERRnoaccess);
4808                 END_PROFILE(SMBsplwr);
4809                 return;
4810         }
4811
4812         if (!CHECK_WRITE(fsp)) {
4813                 reply_doserror(req, ERRDOS, ERRbadaccess);
4814                 END_PROFILE(SMBsplwr);
4815                 return;
4816         }
4817
4818         numtowrite = SVAL(req->buf, 1);
4819
4820         if (req->buflen < numtowrite + 3) {
4821                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4822                 END_PROFILE(SMBsplwr);
4823                 return;
4824         }
4825
4826         data = (const char *)req->buf + 3;
4827
4828         if (write_file(req,fsp,data,-1,numtowrite) != numtowrite) {
4829                 reply_unixerror(req, ERRHRD, ERRdiskfull);
4830                 END_PROFILE(SMBsplwr);
4831                 return;
4832         }
4833
4834         DEBUG( 3, ( "printwrite fnum=%d num=%d\n", fsp->fnum, numtowrite ) );
4835
4836         END_PROFILE(SMBsplwr);
4837         return;
4838 }
4839
4840 /****************************************************************************
4841  Reply to a mkdir.
4842 ****************************************************************************/
4843
4844 void reply_mkdir(struct smb_request *req)
4845 {
4846         connection_struct *conn = req->conn;
4847         char *directory = NULL;
4848         NTSTATUS status;
4849         SMB_STRUCT_STAT sbuf;
4850         TALLOC_CTX *ctx = talloc_tos();
4851
4852         START_PROFILE(SMBmkdir);
4853
4854         srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
4855                             STR_TERMINATE, &status);
4856         if (!NT_STATUS_IS_OK(status)) {
4857                 reply_nterror(req, status);
4858                 END_PROFILE(SMBmkdir);
4859                 return;
4860         }
4861
4862         status = resolve_dfspath(ctx, conn,
4863                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
4864                                  directory,
4865                                  &directory);
4866         if (!NT_STATUS_IS_OK(status)) {
4867                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
4868                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
4869                                         ERRSRV, ERRbadpath);
4870                         END_PROFILE(SMBmkdir);
4871                         return;
4872                 }
4873                 reply_nterror(req, status);
4874                 END_PROFILE(SMBmkdir);
4875                 return;
4876         }
4877
4878         status = unix_convert(ctx, conn, directory, False, &directory, NULL, &sbuf);
4879         if (!NT_STATUS_IS_OK(status)) {
4880                 reply_nterror(req, status);
4881                 END_PROFILE(SMBmkdir);
4882                 return;
4883         }
4884
4885         status = check_name(conn, directory);
4886         if (!NT_STATUS_IS_OK(status)) {
4887                 reply_nterror(req, status);
4888                 END_PROFILE(SMBmkdir);
4889                 return;
4890         }
4891
4892         status = create_directory(conn, req, directory);
4893
4894         DEBUG(5, ("create_directory returned %s\n", nt_errstr(status)));
4895
4896         if (!NT_STATUS_IS_OK(status)) {
4897
4898                 if (!use_nt_status()
4899                     && NT_STATUS_EQUAL(status,
4900                                        NT_STATUS_OBJECT_NAME_COLLISION)) {
4901                         /*
4902                          * Yes, in the DOS error code case we get a
4903                          * ERRDOS:ERRnoaccess here. See BASE-SAMBA3ERROR
4904                          * samba4 torture test.
4905                          */
4906                         status = NT_STATUS_DOS(ERRDOS, ERRnoaccess);
4907                 }
4908
4909                 reply_nterror(req, status);
4910                 END_PROFILE(SMBmkdir);
4911                 return;
4912         }
4913
4914         reply_outbuf(req, 0, 0);
4915
4916         DEBUG( 3, ( "mkdir %s\n", directory ) );
4917
4918         END_PROFILE(SMBmkdir);
4919         return;
4920 }
4921
4922 /****************************************************************************
4923  Static function used by reply_rmdir to delete an entire directory
4924  tree recursively. Return True on ok, False on fail.
4925 ****************************************************************************/
4926
4927 static bool recursive_rmdir(TALLOC_CTX *ctx,
4928                         connection_struct *conn,
4929                         char *directory)
4930 {
4931         const char *dname = NULL;
4932         bool ret = True;
4933         long offset = 0;
4934         struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn, directory,
4935                                           NULL, 0);
4936
4937         if(dir_hnd == NULL)
4938                 return False;
4939
4940         while((dname = ReadDirName(dir_hnd, &offset))) {
4941                 char *fullname = NULL;
4942                 SMB_STRUCT_STAT st;
4943
4944                 if (ISDOT(dname) || ISDOTDOT(dname)) {
4945                         continue;
4946                 }
4947
4948                 if (!is_visible_file(conn, directory, dname, &st, False)) {
4949                         continue;
4950                 }
4951
4952                 /* Construct the full name. */
4953                 fullname = talloc_asprintf(ctx,
4954                                 "%s/%s",
4955                                 directory,
4956                                 dname);
4957                 if (!fullname) {
4958                         errno = ENOMEM;
4959                         ret = False;
4960                         break;
4961                 }
4962
4963                 if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
4964                         ret = False;
4965                         break;
4966                 }
4967
4968                 if(st.st_mode & S_IFDIR) {
4969                         if(!recursive_rmdir(ctx, conn, fullname)) {
4970                                 ret = False;
4971                                 break;
4972                         }
4973                         if(SMB_VFS_RMDIR(conn,fullname) != 0) {
4974                                 ret = False;
4975                                 break;
4976                         }
4977                 } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
4978                         ret = False;
4979                         break;
4980                 }
4981                 TALLOC_FREE(fullname);
4982         }
4983         TALLOC_FREE(dir_hnd);
4984         return ret;
4985 }
4986
4987 /****************************************************************************
4988  The internals of the rmdir code - called elsewhere.
4989 ****************************************************************************/
4990
4991 NTSTATUS rmdir_internals(TALLOC_CTX *ctx,
4992                         connection_struct *conn,
4993                         const char *directory)
4994 {
4995         int ret;
4996         SMB_STRUCT_STAT st;
4997
4998         /* Might be a symlink. */
4999         if(SMB_VFS_LSTAT(conn, directory, &st) != 0) {
5000                 return map_nt_error_from_unix(errno);
5001         }
5002
5003         if (S_ISLNK(st.st_mode)) {
5004                 /* Is what it points to a directory ? */
5005                 if(SMB_VFS_STAT(conn, directory, &st) != 0) {
5006                         return map_nt_error_from_unix(errno);
5007                 }
5008                 if (!(S_ISDIR(st.st_mode))) {
5009                         return NT_STATUS_NOT_A_DIRECTORY;
5010                 }
5011                 ret = SMB_VFS_UNLINK(conn,directory);
5012         } else {
5013                 ret = SMB_VFS_RMDIR(conn,directory);
5014         }
5015         if (ret == 0) {
5016                 notify_fname(conn, NOTIFY_ACTION_REMOVED,
5017                              FILE_NOTIFY_CHANGE_DIR_NAME,
5018                              directory);
5019                 return NT_STATUS_OK;
5020         }
5021
5022         if(((errno == ENOTEMPTY)||(errno == EEXIST)) && lp_veto_files(SNUM(conn))) {
5023                 /*
5024                  * Check to see if the only thing in this directory are
5025                  * vetoed files/directories. If so then delete them and
5026                  * retry. If we fail to delete any of them (and we *don't*
5027                  * do a recursive delete) then fail the rmdir.
5028                  */
5029                 const char *dname;
5030                 long dirpos = 0;
5031                 struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn,
5032                                                   directory, NULL, 0);
5033
5034                 if(dir_hnd == NULL) {
5035                         errno = ENOTEMPTY;
5036                         goto err;
5037                 }
5038
5039                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
5040                         if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0))
5041                                 continue;
5042                         if (!is_visible_file(conn, directory, dname, &st, False))
5043                                 continue;
5044                         if(!IS_VETO_PATH(conn, dname)) {
5045                                 TALLOC_FREE(dir_hnd);
5046                                 errno = ENOTEMPTY;
5047                                 goto err;
5048                         }
5049                 }
5050
5051                 /* We only have veto files/directories.
5052                  * Are we allowed to delete them ? */
5053
5054                 if(!lp_recursive_veto_delete(SNUM(conn))) {
5055                         TALLOC_FREE(dir_hnd);
5056                         errno = ENOTEMPTY;
5057                         goto err;
5058                 }
5059
5060                 /* Do a recursive delete. */
5061                 RewindDir(dir_hnd,&dirpos);
5062                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
5063                         char *fullname = NULL;
5064
5065                         if (ISDOT(dname) || ISDOTDOT(dname)) {
5066                                 continue;
5067                         }
5068                         if (!is_visible_file(conn, directory, dname, &st, False)) {
5069                                 continue;
5070                         }
5071
5072                         fullname = talloc_asprintf(ctx,
5073                                         "%s/%s",
5074                                         directory,
5075                                         dname);
5076
5077                         if(!fullname) {
5078                                 errno = ENOMEM;
5079                                 break;
5080                         }
5081
5082                         if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
5083                                 break;
5084                         }
5085                         if(st.st_mode & S_IFDIR) {
5086                                 if(!recursive_rmdir(ctx, conn, fullname)) {
5087                                         break;
5088                                 }
5089                                 if(SMB_VFS_RMDIR(conn,fullname) != 0) {
5090                                         break;
5091                                 }
5092                         } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
5093                                 break;
5094                         }
5095                         TALLOC_FREE(fullname);
5096                 }
5097                 TALLOC_FREE(dir_hnd);
5098                 /* Retry the rmdir */
5099                 ret = SMB_VFS_RMDIR(conn,directory);
5100         }
5101
5102   err:
5103
5104         if (ret != 0) {
5105                 DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
5106                          "%s\n", directory,strerror(errno)));
5107                 return map_nt_error_from_unix(errno);
5108         }
5109
5110         notify_fname(conn, NOTIFY_ACTION_REMOVED,
5111                      FILE_NOTIFY_CHANGE_DIR_NAME,
5112                      directory);
5113
5114         return NT_STATUS_OK;
5115 }
5116
5117 /****************************************************************************
5118  Reply to a rmdir.
5119 ****************************************************************************/
5120
5121 void reply_rmdir(struct smb_request *req)
5122 {
5123         connection_struct *conn = req->conn;
5124         char *directory = NULL;
5125         SMB_STRUCT_STAT sbuf;
5126         NTSTATUS status;
5127         TALLOC_CTX *ctx = talloc_tos();
5128
5129         START_PROFILE(SMBrmdir);
5130
5131         srvstr_get_path_req(ctx, req, &directory, (const char *)req->buf + 1,
5132                             STR_TERMINATE, &status);
5133         if (!NT_STATUS_IS_OK(status)) {
5134                 reply_nterror(req, status);
5135                 END_PROFILE(SMBrmdir);
5136                 return;
5137         }
5138
5139         status = resolve_dfspath(ctx, conn,
5140                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
5141                                  directory,
5142                                  &directory);
5143         if (!NT_STATUS_IS_OK(status)) {
5144                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5145                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5146                                         ERRSRV, ERRbadpath);
5147                         END_PROFILE(SMBrmdir);
5148                         return;
5149                 }
5150                 reply_nterror(req, status);
5151                 END_PROFILE(SMBrmdir);
5152                 return;
5153         }
5154
5155         status = unix_convert(ctx, conn, directory, False, &directory,
5156                         NULL, &sbuf);
5157         if (!NT_STATUS_IS_OK(status)) {
5158                 reply_nterror(req, status);
5159                 END_PROFILE(SMBrmdir);
5160                 return;
5161         }
5162
5163         status = check_name(conn, directory);
5164         if (!NT_STATUS_IS_OK(status)) {
5165                 reply_nterror(req, status);
5166                 END_PROFILE(SMBrmdir);
5167                 return;
5168         }
5169
5170         dptr_closepath(directory, req->smbpid);
5171         status = rmdir_internals(ctx, conn, directory);
5172         if (!NT_STATUS_IS_OK(status)) {
5173                 reply_nterror(req, status);
5174                 END_PROFILE(SMBrmdir);
5175                 return;
5176         }
5177
5178         reply_outbuf(req, 0, 0);
5179
5180         DEBUG( 3, ( "rmdir %s\n", directory ) );
5181
5182         END_PROFILE(SMBrmdir);
5183         return;
5184 }
5185
5186 /*******************************************************************
5187  Resolve wildcards in a filename rename.
5188 ********************************************************************/
5189
5190 static bool resolve_wildcards(TALLOC_CTX *ctx,
5191                                 const char *name1,
5192                                 const char *name2,
5193                                 char **pp_newname)
5194 {
5195         char *name2_copy = NULL;
5196         char *root1 = NULL;
5197         char *root2 = NULL;
5198         char *ext1 = NULL;
5199         char *ext2 = NULL;
5200         char *p,*p2, *pname1, *pname2;
5201
5202         name2_copy = talloc_strdup(ctx, name2);
5203         if (!name2_copy) {
5204                 return False;
5205         }
5206
5207         pname1 = strrchr_m(name1,'/');
5208         pname2 = strrchr_m(name2_copy,'/');
5209
5210         if (!pname1 || !pname2) {
5211                 return False;
5212         }
5213
5214         /* Truncate the copy of name2 at the last '/' */
5215         *pname2 = '\0';
5216
5217         /* Now go past the '/' */
5218         pname1++;
5219         pname2++;
5220
5221         root1 = talloc_strdup(ctx, pname1);
5222         root2 = talloc_strdup(ctx, pname2);
5223
5224         if (!root1 || !root2) {
5225                 return False;
5226         }
5227
5228         p = strrchr_m(root1,'.');
5229         if (p) {
5230                 *p = 0;
5231                 ext1 = talloc_strdup(ctx, p+1);
5232         } else {
5233                 ext1 = talloc_strdup(ctx, "");
5234         }
5235         p = strrchr_m(root2,'.');
5236         if (p) {
5237                 *p = 0;
5238                 ext2 = talloc_strdup(ctx, p+1);
5239         } else {
5240                 ext2 = talloc_strdup(ctx, "");
5241         }
5242
5243         if (!ext1 || !ext2) {
5244                 return False;
5245         }
5246
5247         p = root1;
5248         p2 = root2;
5249         while (*p2) {
5250                 if (*p2 == '?') {
5251                         /* Hmmm. Should this be mb-aware ? */
5252                         *p2 = *p;
5253                         p2++;
5254                 } else if (*p2 == '*') {
5255                         *p2 = '\0';
5256                         root2 = talloc_asprintf(ctx, "%s%s",
5257                                                 root2,
5258                                                 p);
5259                         if (!root2) {
5260                                 return False;
5261                         }
5262                         break;
5263                 } else {
5264                         p2++;
5265                 }
5266                 if (*p) {
5267                         p++;
5268                 }
5269         }
5270
5271         p = ext1;
5272         p2 = ext2;
5273         while (*p2) {
5274                 if (*p2 == '?') {
5275                         /* Hmmm. Should this be mb-aware ? */
5276                         *p2 = *p;
5277                         p2++;
5278                 } else if (*p2 == '*') {
5279                         *p2 = '\0';
5280                         ext2 = talloc_asprintf(ctx, "%s%s",
5281                                                 ext2,
5282                                                 p);
5283                         if (!ext2) {
5284                                 return False;
5285                         }
5286                         break;
5287                 } else {
5288                         p2++;
5289                 }
5290                 if (*p) {
5291                         p++;
5292                 }
5293         }
5294
5295         if (*ext2) {
5296                 *pp_newname = talloc_asprintf(ctx, "%s/%s.%s",
5297                                 name2_copy,
5298                                 root2,
5299                                 ext2);
5300         } else {
5301                 *pp_newname = talloc_asprintf(ctx, "%s/%s",
5302                                 name2_copy,
5303                                 root2);
5304         }
5305
5306         if (!*pp_newname) {
5307                 return False;
5308         }
5309
5310         return True;
5311 }
5312
5313 /****************************************************************************
5314  Ensure open files have their names updated. Updated to notify other smbd's
5315  asynchronously.
5316 ****************************************************************************/
5317
5318 static void rename_open_files(connection_struct *conn,
5319                               struct share_mode_lock *lck,
5320                               const char *newname)
5321 {
5322         files_struct *fsp;
5323         bool did_rename = False;
5324
5325         for(fsp = file_find_di_first(lck->id); fsp;
5326             fsp = file_find_di_next(fsp)) {
5327                 /* fsp_name is a relative path under the fsp. To change this for other
5328                    sharepaths we need to manipulate relative paths. */
5329                 /* TODO - create the absolute path and manipulate the newname
5330                    relative to the sharepath. */
5331                 if (!strequal(fsp->conn->connectpath, conn->connectpath)) {
5332                         continue;
5333                 }
5334                 DEBUG(10,("rename_open_files: renaming file fnum %d (file_id %s) from %s -> %s\n",
5335                           fsp->fnum, file_id_string_tos(&fsp->file_id),
5336                         fsp->fsp_name, newname ));
5337                 string_set(&fsp->fsp_name, newname);
5338                 did_rename = True;
5339         }
5340
5341         if (!did_rename) {
5342                 DEBUG(10,("rename_open_files: no open files on file_id %s for %s\n",
5343                           file_id_string_tos(&lck->id), newname ));
5344         }
5345
5346         /* Send messages to all smbd's (not ourself) that the name has changed. */
5347         rename_share_filename(smbd_messaging_context(), lck, conn->connectpath,
5348                               newname);
5349 }
5350
5351 /****************************************************************************
5352  We need to check if the source path is a parent directory of the destination
5353  (ie. a rename of /foo/bar/baz -> /foo/bar/baz/bibble/bobble. If so we must
5354  refuse the rename with a sharing violation. Under UNIX the above call can
5355  *succeed* if /foo/bar/baz is a symlink to another area in the share. We
5356  probably need to check that the client is a Windows one before disallowing
5357  this as a UNIX client (one with UNIX extensions) can know the source is a
5358  symlink and make this decision intelligently. Found by an excellent bug
5359  report from <AndyLiebman@aol.com>.
5360 ****************************************************************************/
5361
5362 static bool rename_path_prefix_equal(const char *src, const char *dest)
5363 {
5364         const char *psrc = src;
5365         const char *pdst = dest;
5366         size_t slen;
5367
5368         if (psrc[0] == '.' && psrc[1] == '/') {
5369                 psrc += 2;
5370         }
5371         if (pdst[0] == '.' && pdst[1] == '/') {
5372                 pdst += 2;
5373         }
5374         if ((slen = strlen(psrc)) > strlen(pdst)) {
5375                 return False;
5376         }
5377         return ((memcmp(psrc, pdst, slen) == 0) && pdst[slen] == '/');
5378 }
5379
5380 /*
5381  * Do the notify calls from a rename
5382  */
5383
5384 static void notify_rename(connection_struct *conn, bool is_dir,
5385                           const char *oldpath, const char *newpath)
5386 {
5387         char *olddir, *newdir;
5388         const char *oldname, *newname;
5389         uint32 mask;
5390
5391         mask = is_dir ? FILE_NOTIFY_CHANGE_DIR_NAME
5392                 : FILE_NOTIFY_CHANGE_FILE_NAME;
5393
5394         if (!parent_dirname_talloc(NULL, oldpath, &olddir, &oldname)
5395             || !parent_dirname_talloc(NULL, newpath, &newdir, &newname)) {
5396                 TALLOC_FREE(olddir);
5397                 return;
5398         }
5399
5400         if (strcmp(olddir, newdir) == 0) {
5401                 notify_fname(conn, NOTIFY_ACTION_OLD_NAME, mask, oldpath);
5402                 notify_fname(conn, NOTIFY_ACTION_NEW_NAME, mask, newpath);
5403         }
5404         else {
5405                 notify_fname(conn, NOTIFY_ACTION_REMOVED, mask, oldpath);
5406                 notify_fname(conn, NOTIFY_ACTION_ADDED, mask, newpath);
5407         }
5408         TALLOC_FREE(olddir);
5409         TALLOC_FREE(newdir);
5410
5411         /* this is a strange one. w2k3 gives an additional event for
5412            CHANGE_ATTRIBUTES and CHANGE_CREATION on the new file when renaming
5413            files, but not directories */
5414         if (!is_dir) {
5415                 notify_fname(conn, NOTIFY_ACTION_MODIFIED,
5416                              FILE_NOTIFY_CHANGE_ATTRIBUTES
5417                              |FILE_NOTIFY_CHANGE_CREATION,
5418                              newpath);
5419         }
5420 }
5421
5422 /****************************************************************************
5423  Rename an open file - given an fsp.
5424 ****************************************************************************/
5425
5426 NTSTATUS rename_internals_fsp(connection_struct *conn,
5427                         files_struct *fsp,
5428                         char *newname,
5429                         const char *newname_last_component,
5430                         uint32 attrs,
5431                         bool replace_if_exists)
5432 {
5433         TALLOC_CTX *ctx = talloc_tos();
5434         SMB_STRUCT_STAT sbuf, sbuf1;
5435         NTSTATUS status = NT_STATUS_OK;
5436         struct share_mode_lock *lck = NULL;
5437         bool dst_exists;
5438
5439         ZERO_STRUCT(sbuf);
5440
5441         status = check_name(conn, newname);
5442         if (!NT_STATUS_IS_OK(status)) {
5443                 return status;
5444         }
5445
5446         /* Ensure newname contains a '/' */
5447         if(strrchr_m(newname,'/') == 0) {
5448                 newname = talloc_asprintf(ctx,
5449                                         "./%s",
5450                                         newname);
5451                 if (!newname) {
5452                         return NT_STATUS_NO_MEMORY;
5453                 }
5454         }
5455
5456         /*
5457          * Check for special case with case preserving and not
5458          * case sensitive. If the old last component differs from the original
5459          * last component only by case, then we should allow
5460          * the rename (user is trying to change the case of the
5461          * filename).
5462          */
5463
5464         if((conn->case_sensitive == False) && (conn->case_preserve == True) &&
5465                         strequal(newname, fsp->fsp_name)) {
5466                 char *p;
5467                 char *newname_modified_last_component = NULL;
5468
5469                 /*
5470                  * Get the last component of the modified name.
5471                  * Note that we guarantee that newname contains a '/'
5472                  * character above.
5473                  */
5474                 p = strrchr_m(newname,'/');
5475                 newname_modified_last_component = talloc_strdup(ctx,
5476                                                 p+1);
5477                 if (!newname_modified_last_component) {
5478                         return NT_STATUS_NO_MEMORY;
5479                 }
5480
5481                 if(strcsequal(newname_modified_last_component,
5482                               newname_last_component) == False) {
5483                         /*
5484                          * Replace the modified last component with
5485                          * the original.
5486                          */
5487                         *p = '\0'; /* Truncate at the '/' */
5488                         newname = talloc_asprintf(ctx,
5489                                         "%s/%s",
5490                                         newname,
5491                                         newname_last_component);
5492                 }
5493         }
5494
5495         /*
5496          * If the src and dest names are identical - including case,
5497          * don't do the rename, just return success.
5498          */
5499
5500         if (strcsequal(fsp->fsp_name, newname)) {
5501                 DEBUG(3,("rename_internals_fsp: identical names in rename %s - returning success\n",
5502                         newname));
5503                 return NT_STATUS_OK;
5504         }
5505
5506         /*
5507          * Have vfs_object_exist also fill sbuf1
5508          */
5509         dst_exists = vfs_object_exist(conn, newname, &sbuf1);
5510
5511         if(!replace_if_exists && dst_exists) {
5512                 DEBUG(3,("rename_internals_fsp: dest exists doing rename %s -> %s\n",
5513                         fsp->fsp_name,newname));
5514                 return NT_STATUS_OBJECT_NAME_COLLISION;
5515         }
5516
5517         if(replace_if_exists && dst_exists) {
5518                 if (is_ntfs_stream_name(newname)) {
5519                         return NT_STATUS_INVALID_PARAMETER;
5520                 }
5521         }
5522
5523         if (dst_exists) {
5524                 struct file_id fileid = vfs_file_id_from_sbuf(conn, &sbuf1);
5525                 files_struct *dst_fsp = file_find_di_first(fileid);
5526                 if (dst_fsp) {
5527                         DEBUG(3, ("rename_internals_fsp: Target file open\n"));
5528                         return NT_STATUS_ACCESS_DENIED;
5529                 }
5530         }
5531
5532         /* Ensure we have a valid stat struct for the source. */
5533         if (fsp->fh->fd != -1) {
5534                 if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
5535                         return map_nt_error_from_unix(errno);
5536                 }
5537         } else {
5538                 if (SMB_VFS_STAT(conn,fsp->fsp_name,&sbuf) == -1) {
5539                         return map_nt_error_from_unix(errno);
5540                 }
5541         }
5542
5543         status = can_rename(conn, fsp, attrs, &sbuf);
5544
5545         if (!NT_STATUS_IS_OK(status)) {
5546                 DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5547                         nt_errstr(status), fsp->fsp_name,newname));
5548                 if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION))
5549                         status = NT_STATUS_ACCESS_DENIED;
5550                 return status;
5551         }
5552
5553         if (rename_path_prefix_equal(fsp->fsp_name, newname)) {
5554                 return NT_STATUS_ACCESS_DENIED;
5555         }
5556
5557         lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
5558                                   NULL);
5559
5560         /*
5561          * We have the file open ourselves, so not being able to get the
5562          * corresponding share mode lock is a fatal error.
5563          */
5564
5565         SMB_ASSERT(lck != NULL);
5566
5567         if(SMB_VFS_RENAME(conn,fsp->fsp_name, newname) == 0) {
5568                 uint32 create_options = fsp->fh->private_options;
5569
5570                 DEBUG(3,("rename_internals_fsp: succeeded doing rename on %s -> %s\n",
5571                         fsp->fsp_name,newname));
5572
5573                 notify_rename(conn, fsp->is_directory, fsp->fsp_name, newname);
5574
5575                 rename_open_files(conn, lck, newname);
5576
5577                 /*
5578                  * A rename acts as a new file create w.r.t. allowing an initial delete
5579                  * on close, probably because in Windows there is a new handle to the
5580                  * new file. If initial delete on close was requested but not
5581                  * originally set, we need to set it here. This is probably not 100% correct,
5582                  * but will work for the CIFSFS client which in non-posix mode
5583                  * depends on these semantics. JRA.
5584                  */
5585
5586                 if (create_options & FILE_DELETE_ON_CLOSE) {
5587                         status = can_set_delete_on_close(fsp, True, 0);
5588
5589                         if (NT_STATUS_IS_OK(status)) {
5590                                 /* Note that here we set the *inital* delete on close flag,
5591                                  * not the regular one. The magic gets handled in close. */
5592                                 fsp->initial_delete_on_close = True;
5593                         }
5594                 }
5595                 TALLOC_FREE(lck);
5596                 return NT_STATUS_OK;
5597         }
5598
5599         TALLOC_FREE(lck);
5600
5601         if (errno == ENOTDIR || errno == EISDIR) {
5602                 status = NT_STATUS_OBJECT_NAME_COLLISION;
5603         } else {
5604                 status = map_nt_error_from_unix(errno);
5605         }
5606
5607         DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5608                 nt_errstr(status), fsp->fsp_name,newname));
5609
5610         return status;
5611 }
5612
5613 /****************************************************************************
5614  The guts of the rename command, split out so it may be called by the NT SMB
5615  code.
5616 ****************************************************************************/
5617
5618 NTSTATUS rename_internals(TALLOC_CTX *ctx,
5619                         connection_struct *conn,
5620                         struct smb_request *req,
5621                         const char *name_in,
5622                         const char *newname_in,
5623                         uint32 attrs,
5624                         bool replace_if_exists,
5625                         bool src_has_wild,
5626                         bool dest_has_wild,
5627                         uint32_t access_mask)
5628 {
5629         char *directory = NULL;
5630         char *mask = NULL;
5631         char *last_component_src = NULL;
5632         char *last_component_dest = NULL;
5633         char *name = NULL;
5634         char *newname = NULL;
5635         char *p;
5636         int count=0;
5637         NTSTATUS status = NT_STATUS_OK;
5638         SMB_STRUCT_STAT sbuf1, sbuf2;
5639         struct smb_Dir *dir_hnd = NULL;
5640         const char *dname;
5641         long offset = 0;
5642         int create_options = 0;
5643
5644         ZERO_STRUCT(sbuf1);
5645         ZERO_STRUCT(sbuf2);
5646
5647         status = unix_convert(ctx, conn, name_in, src_has_wild, &name,
5648                         &last_component_src, &sbuf1);
5649         if (!NT_STATUS_IS_OK(status)) {
5650                 return status;
5651         }
5652
5653         status = unix_convert(ctx, conn, newname_in, dest_has_wild, &newname,
5654                         &last_component_dest, &sbuf2);
5655         if (!NT_STATUS_IS_OK(status)) {
5656                 return status;
5657         }
5658
5659         /*
5660          * Split the old name into directory and last component
5661          * strings. Note that unix_convert may have stripped off a
5662          * leading ./ from both name and newname if the rename is
5663          * at the root of the share. We need to make sure either both
5664          * name and newname contain a / character or neither of them do
5665          * as this is checked in resolve_wildcards().
5666          */
5667
5668         p = strrchr_m(name,'/');
5669         if (!p) {
5670                 directory = talloc_strdup(ctx, ".");
5671                 if (!directory) {
5672                         return NT_STATUS_NO_MEMORY;
5673                 }
5674                 mask = name;
5675         } else {
5676                 *p = 0;
5677                 directory = talloc_strdup(ctx, name);
5678                 if (!directory) {
5679                         return NT_STATUS_NO_MEMORY;
5680                 }
5681                 mask = p+1;
5682                 *p = '/'; /* Replace needed for exceptional test below. */
5683         }
5684
5685         /*
5686          * We should only check the mangled cache
5687          * here if unix_convert failed. This means
5688          * that the path in 'mask' doesn't exist
5689          * on the file system and so we need to look
5690          * for a possible mangle. This patch from
5691          * Tine Smukavec <valentin.smukavec@hermes.si>.
5692          */
5693
5694         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
5695                 char *new_mask = NULL;
5696                 mangle_lookup_name_from_8_3(ctx,
5697                                         mask,
5698                                         &new_mask,
5699                                         conn->params );
5700                 if (new_mask) {
5701                         mask = new_mask;
5702                 }
5703         }
5704
5705         if (!src_has_wild) {
5706                 files_struct *fsp;
5707
5708                 /*
5709                  * No wildcards - just process the one file.
5710                  */
5711                 bool is_short_name = mangle_is_8_3(name, True, conn->params);
5712
5713                 /* Add a terminating '/' to the directory name. */
5714                 directory = talloc_asprintf_append(directory,
5715                                 "/%s",
5716                                 mask);
5717                 if (!directory) {
5718                         return NT_STATUS_NO_MEMORY;
5719                 }
5720
5721                 /* Ensure newname contains a '/' also */
5722                 if(strrchr_m(newname,'/') == 0) {
5723                         newname = talloc_asprintf(ctx,
5724                                                 "./%s",
5725                                                 newname);
5726                         if (!newname) {
5727                                 return NT_STATUS_NO_MEMORY;
5728                         }
5729                 }
5730
5731                 DEBUG(3, ("rename_internals: case_sensitive = %d, "
5732                           "case_preserve = %d, short case preserve = %d, "
5733                           "directory = %s, newname = %s, "
5734                           "last_component_dest = %s, is_8_3 = %d\n",
5735                           conn->case_sensitive, conn->case_preserve,
5736                           conn->short_case_preserve, directory,
5737                           newname, last_component_dest, is_short_name));
5738
5739                 /* The dest name still may have wildcards. */
5740                 if (dest_has_wild) {
5741                         char *mod_newname = NULL;
5742                         if (!resolve_wildcards(ctx,
5743                                         directory,newname,&mod_newname)) {
5744                                 DEBUG(6, ("rename_internals: resolve_wildcards "
5745                                         "%s %s failed\n",
5746                                         directory,
5747                                         newname));
5748                                 return NT_STATUS_NO_MEMORY;
5749                         }
5750                         newname = mod_newname;
5751                 }
5752
5753                 ZERO_STRUCT(sbuf1);
5754                 SMB_VFS_STAT(conn, directory, &sbuf1);
5755
5756                 if (S_ISDIR(sbuf1.st_mode)) {
5757                         create_options |= FILE_DIRECTORY_FILE;
5758                 }
5759
5760                 status = SMB_VFS_CREATE_FILE(
5761                         conn,                           /* conn */
5762                         req,                            /* req */
5763                         0,                              /* root_dir_fid */
5764                         directory,                      /* fname */
5765                         0,                              /* create_file_flags */
5766                         access_mask,                    /* access_mask */
5767                         (FILE_SHARE_READ |              /* share_access */
5768                             FILE_SHARE_WRITE),
5769                         FILE_OPEN,                      /* create_disposition*/
5770                         create_options,                 /* create_options */
5771                         0,                              /* file_attributes */
5772                         0,                              /* oplock_request */
5773                         0,                              /* allocation_size */
5774                         NULL,                           /* sd */
5775                         NULL,                           /* ea_list */
5776                         &fsp,                           /* result */
5777                         NULL,                           /* pinfo */
5778                         &sbuf1);                        /* psbuf */
5779
5780                 if (!NT_STATUS_IS_OK(status)) {
5781                         DEBUG(3, ("Could not open rename source %s: %s\n",
5782                                   directory, nt_errstr(status)));
5783                         return status;
5784                 }
5785
5786                 status = rename_internals_fsp(conn, fsp, newname,
5787                                               last_component_dest,
5788                                               attrs, replace_if_exists);
5789
5790                 close_file(req, fsp, NORMAL_CLOSE);
5791
5792                 DEBUG(3, ("rename_internals: Error %s rename %s -> %s\n",
5793                           nt_errstr(status), directory,newname));
5794
5795                 return status;
5796         }
5797
5798         /*
5799          * Wildcards - process each file that matches.
5800          */
5801         if (strequal(mask,"????????.???")) {
5802                 mask[0] = '*';
5803                 mask[1] = '\0';
5804         }
5805
5806         status = check_name(conn, directory);
5807         if (!NT_STATUS_IS_OK(status)) {
5808                 return status;
5809         }
5810
5811         dir_hnd = OpenDir(talloc_tos(), conn, directory, mask, attrs);
5812         if (dir_hnd == NULL) {
5813                 return map_nt_error_from_unix(errno);
5814         }
5815
5816         status = NT_STATUS_NO_SUCH_FILE;
5817         /*
5818          * Was status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
5819          * - gentest fix. JRA
5820          */
5821
5822         while ((dname = ReadDirName(dir_hnd, &offset))) {
5823                 files_struct *fsp = NULL;
5824                 char *fname = NULL;
5825                 char *destname = NULL;
5826                 bool sysdir_entry = False;
5827
5828                 /* Quick check for "." and ".." */
5829                 if (ISDOT(dname) || ISDOTDOT(dname)) {
5830                         if (attrs & aDIR) {
5831                                 sysdir_entry = True;
5832                         } else {
5833                                 continue;
5834                         }
5835                 }
5836
5837                 if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
5838                         continue;
5839                 }
5840
5841                 if(!mask_match(dname, mask, conn->case_sensitive)) {
5842                         continue;
5843                 }
5844
5845                 if (sysdir_entry) {
5846                         status = NT_STATUS_OBJECT_NAME_INVALID;
5847                         break;
5848                 }
5849
5850                 fname = talloc_asprintf(ctx,
5851                                 "%s/%s",
5852                                 directory,
5853                                 dname);
5854                 if (!fname) {
5855                         return NT_STATUS_NO_MEMORY;
5856                 }
5857
5858                 if (!resolve_wildcards(ctx,
5859                                 fname,newname,&destname)) {
5860                         DEBUG(6, ("resolve_wildcards %s %s failed\n",
5861                                   fname, destname));
5862                         TALLOC_FREE(fname);
5863                         continue;
5864                 }
5865                 if (!destname) {
5866                         return NT_STATUS_NO_MEMORY;
5867                 }
5868
5869                 ZERO_STRUCT(sbuf1);
5870                 SMB_VFS_STAT(conn, fname, &sbuf1);
5871
5872                 create_options = 0;
5873
5874                 if (S_ISDIR(sbuf1.st_mode)) {
5875                         create_options |= FILE_DIRECTORY_FILE;
5876                 }
5877
5878                 status = SMB_VFS_CREATE_FILE(
5879                         conn,                           /* conn */
5880                         req,                            /* req */
5881                         0,                              /* root_dir_fid */
5882                         fname,                          /* fname */
5883                         0,                              /* create_file_flags */
5884                         access_mask,                    /* access_mask */
5885                         (FILE_SHARE_READ |              /* share_access */
5886                             FILE_SHARE_WRITE),
5887                         FILE_OPEN,                      /* create_disposition*/
5888                         create_options,                 /* create_options */
5889                         0,                              /* file_attributes */
5890                         0,                              /* oplock_request */
5891                         0,                              /* allocation_size */
5892                         NULL,                           /* sd */
5893                         NULL,                           /* ea_list */
5894                         &fsp,                           /* result */
5895                         NULL,                           /* pinfo */
5896                         &sbuf1);                        /* psbuf */
5897
5898                 if (!NT_STATUS_IS_OK(status)) {
5899                         DEBUG(3,("rename_internals: SMB_VFS_CREATE_FILE "
5900                                  "returned %s rename %s -> %s\n",
5901                                  nt_errstr(status), directory, newname));
5902                         break;
5903                 }
5904
5905                 status = rename_internals_fsp(conn, fsp, destname, dname,
5906                                               attrs, replace_if_exists);
5907
5908                 close_file(req, fsp, NORMAL_CLOSE);
5909
5910                 if (!NT_STATUS_IS_OK(status)) {
5911                         DEBUG(3, ("rename_internals_fsp returned %s for "
5912                                   "rename %s -> %s\n", nt_errstr(status),
5913                                   directory, newname));
5914                         break;
5915                 }
5916
5917                 count++;
5918
5919                 DEBUG(3,("rename_internals: doing rename on %s -> "
5920                          "%s\n",fname,destname));
5921
5922                 TALLOC_FREE(fname);
5923                 TALLOC_FREE(destname);
5924         }
5925         TALLOC_FREE(dir_hnd);
5926
5927         if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
5928                 status = map_nt_error_from_unix(errno);
5929         }
5930
5931         return status;
5932 }
5933
5934 /****************************************************************************
5935  Reply to a mv.
5936 ****************************************************************************/
5937
5938 void reply_mv(struct smb_request *req)
5939 {
5940         connection_struct *conn = req->conn;
5941         char *name = NULL;
5942         char *newname = NULL;
5943         const char *p;
5944         uint32 attrs;
5945         NTSTATUS status;
5946         bool src_has_wcard = False;
5947         bool dest_has_wcard = False;
5948         TALLOC_CTX *ctx = talloc_tos();
5949
5950         START_PROFILE(SMBmv);
5951
5952         if (req->wct < 1) {
5953                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5954                 END_PROFILE(SMBmv);
5955                 return;
5956         }
5957
5958         attrs = SVAL(req->vwv+0, 0);
5959
5960         p = (const char *)req->buf + 1;
5961         p += srvstr_get_path_req_wcard(ctx, req, &name, p, STR_TERMINATE,
5962                                        &status, &src_has_wcard);
5963         if (!NT_STATUS_IS_OK(status)) {
5964                 reply_nterror(req, status);
5965                 END_PROFILE(SMBmv);
5966                 return;
5967         }
5968         p++;
5969         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
5970                                        &status, &dest_has_wcard);
5971         if (!NT_STATUS_IS_OK(status)) {
5972                 reply_nterror(req, status);
5973                 END_PROFILE(SMBmv);
5974                 return;
5975         }
5976
5977         status = resolve_dfspath_wcard(ctx, conn,
5978                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
5979                                        name,
5980                                        &name,
5981                                        &src_has_wcard);
5982         if (!NT_STATUS_IS_OK(status)) {
5983                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5984                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5985                                         ERRSRV, ERRbadpath);
5986                         END_PROFILE(SMBmv);
5987                         return;
5988                 }
5989                 reply_nterror(req, status);
5990                 END_PROFILE(SMBmv);
5991                 return;
5992         }
5993
5994         status = resolve_dfspath_wcard(ctx, conn,
5995                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
5996                                        newname,
5997                                        &newname,
5998                                        &dest_has_wcard);
5999         if (!NT_STATUS_IS_OK(status)) {
6000                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6001                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6002                                         ERRSRV, ERRbadpath);
6003                         END_PROFILE(SMBmv);
6004                         return;
6005                 }
6006                 reply_nterror(req, status);
6007                 END_PROFILE(SMBmv);
6008                 return;
6009         }
6010
6011         DEBUG(3,("reply_mv : %s -> %s\n",name,newname));
6012
6013         status = rename_internals(ctx, conn, req, name, newname, attrs, False,
6014                                   src_has_wcard, dest_has_wcard, DELETE_ACCESS);
6015         if (!NT_STATUS_IS_OK(status)) {
6016                 if (open_was_deferred(req->mid)) {
6017                         /* We have re-scheduled this call. */
6018                         END_PROFILE(SMBmv);
6019                         return;
6020                 }
6021                 reply_nterror(req, status);
6022                 END_PROFILE(SMBmv);
6023                 return;
6024         }
6025
6026         reply_outbuf(req, 0, 0);
6027
6028         END_PROFILE(SMBmv);
6029         return;
6030 }
6031
6032 /*******************************************************************
6033  Copy a file as part of a reply_copy.
6034 ******************************************************************/
6035
6036 /*
6037  * TODO: check error codes on all callers
6038  */
6039
6040 NTSTATUS copy_file(TALLOC_CTX *ctx,
6041                         connection_struct *conn,
6042                         const char *src,
6043                         const char *dest1,
6044                         int ofun,
6045                         int count,
6046                         bool target_is_directory)
6047 {
6048         SMB_STRUCT_STAT src_sbuf, sbuf2;
6049         SMB_OFF_T ret=-1;
6050         files_struct *fsp1,*fsp2;
6051         char *dest = NULL;
6052         uint32 dosattrs;
6053         uint32 new_create_disposition;
6054         NTSTATUS status;
6055
6056         dest = talloc_strdup(ctx, dest1);
6057         if (!dest) {
6058                 return NT_STATUS_NO_MEMORY;
6059         }
6060         if (target_is_directory) {
6061                 const char *p = strrchr_m(src,'/');
6062                 if (p) {
6063                         p++;
6064                 } else {
6065                         p = src;
6066                 }
6067                 dest = talloc_asprintf_append(dest,
6068                                 "/%s",
6069                                 p);
6070                 if (!dest) {
6071                         return NT_STATUS_NO_MEMORY;
6072                 }
6073         }
6074
6075         if (!vfs_file_exist(conn,src,&src_sbuf)) {
6076                 TALLOC_FREE(dest);
6077                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
6078         }
6079
6080         if (!target_is_directory && count) {
6081                 new_create_disposition = FILE_OPEN;
6082         } else {
6083                 if (!map_open_params_to_ntcreate(dest1,0,ofun,
6084                                 NULL, NULL, &new_create_disposition, NULL)) {
6085                         TALLOC_FREE(dest);
6086                         return NT_STATUS_INVALID_PARAMETER;
6087                 }
6088         }
6089
6090         status = SMB_VFS_CREATE_FILE(
6091                 conn,                                   /* conn */
6092                 NULL,                                   /* req */
6093                 0,                                      /* root_dir_fid */
6094                 src,                                    /* fname */
6095                 0,                                      /* create_file_flags */
6096                 FILE_GENERIC_READ,                      /* access_mask */
6097                 FILE_SHARE_READ | FILE_SHARE_WRITE,     /* share_access */
6098                 FILE_OPEN,                              /* create_disposition*/
6099                 0,                                      /* create_options */
6100                 FILE_ATTRIBUTE_NORMAL,                  /* file_attributes */
6101                 INTERNAL_OPEN_ONLY,                     /* oplock_request */
6102                 0,                                      /* allocation_size */
6103                 NULL,                                   /* sd */
6104                 NULL,                                   /* ea_list */
6105                 &fsp1,                                  /* result */
6106                 NULL,                                   /* pinfo */
6107                 &src_sbuf);                             /* psbuf */
6108
6109         if (!NT_STATUS_IS_OK(status)) {
6110                 TALLOC_FREE(dest);
6111                 return status;
6112         }
6113
6114         dosattrs = dos_mode(conn, src, &src_sbuf);
6115         if (SMB_VFS_STAT(conn,dest,&sbuf2) == -1) {
6116                 ZERO_STRUCTP(&sbuf2);
6117         }
6118
6119         status = SMB_VFS_CREATE_FILE(
6120                 conn,                                   /* conn */
6121                 NULL,                                   /* req */
6122                 0,                                      /* root_dir_fid */
6123                 dest,                                   /* fname */
6124                 0,                                      /* create_file_flags */
6125                 FILE_GENERIC_WRITE,                     /* access_mask */
6126                 FILE_SHARE_READ | FILE_SHARE_WRITE,     /* share_access */
6127                 new_create_disposition,                 /* create_disposition*/
6128                 0,                                      /* create_options */
6129                 dosattrs,                               /* file_attributes */
6130                 INTERNAL_OPEN_ONLY,                     /* oplock_request */
6131                 0,                                      /* allocation_size */
6132                 NULL,                                   /* sd */
6133                 NULL,                                   /* ea_list */
6134                 &fsp2,                                  /* result */
6135                 NULL,                                   /* pinfo */
6136                 &sbuf2);                                /* psbuf */
6137
6138         TALLOC_FREE(dest);
6139
6140         if (!NT_STATUS_IS_OK(status)) {
6141                 close_file(NULL, fsp1, ERROR_CLOSE);
6142                 return status;
6143         }
6144
6145         if ((ofun&3) == 1) {
6146                 if(SMB_VFS_LSEEK(fsp2,0,SEEK_END) == -1) {
6147                         DEBUG(0,("copy_file: error - vfs lseek returned error %s\n", strerror(errno) ));
6148                         /*
6149                          * Stop the copy from occurring.
6150                          */
6151                         ret = -1;
6152                         src_sbuf.st_size = 0;
6153                 }
6154         }
6155
6156         if (src_sbuf.st_size) {
6157                 ret = vfs_transfer_file(fsp1, fsp2, src_sbuf.st_size);
6158         }
6159
6160         close_file(NULL, fsp1, NORMAL_CLOSE);
6161
6162         /* Ensure the modtime is set correctly on the destination file. */
6163         set_close_write_time(fsp2, get_mtimespec(&src_sbuf));
6164
6165         /*
6166          * As we are opening fsp1 read-only we only expect
6167          * an error on close on fsp2 if we are out of space.
6168          * Thus we don't look at the error return from the
6169          * close of fsp1.
6170          */
6171         status = close_file(NULL, fsp2, NORMAL_CLOSE);
6172
6173         if (!NT_STATUS_IS_OK(status)) {
6174                 return status;
6175         }
6176
6177         if (ret != (SMB_OFF_T)src_sbuf.st_size) {
6178                 return NT_STATUS_DISK_FULL;
6179         }
6180
6181         return NT_STATUS_OK;
6182 }
6183
6184 /****************************************************************************
6185  Reply to a file copy.
6186 ****************************************************************************/
6187
6188 void reply_copy(struct smb_request *req)
6189 {
6190         connection_struct *conn = req->conn;
6191         char *name = NULL;
6192         char *newname = NULL;
6193         char *directory = NULL;
6194         const char *mask = NULL;
6195         const char mask_star[] = "*";
6196         const char *p;
6197         int count=0;
6198         int error = ERRnoaccess;
6199         int err = 0;
6200         int tid2;
6201         int ofun;
6202         int flags;
6203         bool target_is_directory=False;
6204         bool source_has_wild = False;
6205         bool dest_has_wild = False;
6206         SMB_STRUCT_STAT sbuf1, sbuf2;
6207         NTSTATUS status;
6208         TALLOC_CTX *ctx = talloc_tos();
6209
6210         START_PROFILE(SMBcopy);
6211
6212         if (req->wct < 3) {
6213                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6214                 END_PROFILE(SMBcopy);
6215                 return;
6216         }
6217
6218         tid2 = SVAL(req->vwv+0, 0);
6219         ofun = SVAL(req->vwv+1, 0);
6220         flags = SVAL(req->vwv+2, 0);
6221
6222         p = (const char *)req->buf;
6223         p += srvstr_get_path_req_wcard(ctx, req, &name, p, STR_TERMINATE,
6224                                        &status, &source_has_wild);
6225         if (!NT_STATUS_IS_OK(status)) {
6226                 reply_nterror(req, status);
6227                 END_PROFILE(SMBcopy);
6228                 return;
6229         }
6230         p += srvstr_get_path_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
6231                                        &status, &dest_has_wild);
6232         if (!NT_STATUS_IS_OK(status)) {
6233                 reply_nterror(req, status);
6234                 END_PROFILE(SMBcopy);
6235                 return;
6236         }
6237
6238         DEBUG(3,("reply_copy : %s -> %s\n",name,newname));
6239
6240         if (tid2 != conn->cnum) {
6241                 /* can't currently handle inter share copies XXXX */
6242                 DEBUG(3,("Rejecting inter-share copy\n"));
6243                 reply_doserror(req, ERRSRV, ERRinvdevice);
6244                 END_PROFILE(SMBcopy);
6245                 return;
6246         }
6247
6248         status = resolve_dfspath_wcard(ctx, conn,
6249                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6250                                        name,
6251                                        &name,
6252                                        &source_has_wild);
6253         if (!NT_STATUS_IS_OK(status)) {
6254                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6255                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6256                                         ERRSRV, ERRbadpath);
6257                         END_PROFILE(SMBcopy);
6258                         return;
6259                 }
6260                 reply_nterror(req, status);
6261                 END_PROFILE(SMBcopy);
6262                 return;
6263         }
6264
6265         status = resolve_dfspath_wcard(ctx, conn,
6266                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6267                                        newname,
6268                                        &newname,
6269                                        &dest_has_wild);
6270         if (!NT_STATUS_IS_OK(status)) {
6271                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6272                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6273                                         ERRSRV, ERRbadpath);
6274                         END_PROFILE(SMBcopy);
6275                         return;
6276                 }
6277                 reply_nterror(req, status);
6278                 END_PROFILE(SMBcopy);
6279                 return;
6280         }
6281
6282         status = unix_convert(ctx, conn, name, source_has_wild,
6283                         &name, NULL, &sbuf1);
6284         if (!NT_STATUS_IS_OK(status)) {
6285                 reply_nterror(req, status);
6286                 END_PROFILE(SMBcopy);
6287                 return;
6288         }
6289
6290         status = unix_convert(ctx, conn, newname, dest_has_wild,
6291                         &newname, NULL, &sbuf2);
6292         if (!NT_STATUS_IS_OK(status)) {
6293                 reply_nterror(req, status);
6294                 END_PROFILE(SMBcopy);
6295                 return;
6296         }
6297
6298         target_is_directory = VALID_STAT_OF_DIR(sbuf2);
6299
6300         if ((flags&1) && target_is_directory) {
6301                 reply_doserror(req, ERRDOS, ERRbadfile);
6302                 END_PROFILE(SMBcopy);
6303                 return;
6304         }
6305
6306         if ((flags&2) && !target_is_directory) {
6307                 reply_doserror(req, ERRDOS, ERRbadpath);
6308                 END_PROFILE(SMBcopy);
6309                 return;
6310         }
6311
6312         if ((flags&(1<<5)) && VALID_STAT_OF_DIR(sbuf1)) {
6313                 /* wants a tree copy! XXXX */
6314                 DEBUG(3,("Rejecting tree copy\n"));
6315                 reply_doserror(req, ERRSRV, ERRerror);
6316                 END_PROFILE(SMBcopy);
6317                 return;
6318         }
6319
6320         p = strrchr_m(name,'/');
6321         if (p != NULL) {
6322                 directory = talloc_strndup(ctx, name, PTR_DIFF(p, name));
6323                 mask = p+1;
6324         } else {
6325                 directory = talloc_strdup(ctx, "./");
6326                 mask = name;
6327         }
6328
6329         if (!directory) {
6330                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6331                 END_PROFILE(SMBcopy);
6332                 return;
6333         }
6334
6335         /*
6336          * We should only check the mangled cache
6337          * here if unix_convert failed. This means
6338          * that the path in 'mask' doesn't exist
6339          * on the file system and so we need to look
6340          * for a possible mangle. This patch from
6341          * Tine Smukavec <valentin.smukavec@hermes.si>.
6342          */
6343
6344         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
6345                 char *new_mask = NULL;
6346                 mangle_lookup_name_from_8_3(ctx,
6347                                         mask,
6348                                         &new_mask,
6349                                         conn->params );
6350                 if (new_mask) {
6351                         mask = new_mask;
6352                 }
6353         }
6354
6355         if (!source_has_wild) {
6356                 directory = talloc_asprintf_append(directory,
6357                                 "/%s",
6358                                 mask);
6359                 if (dest_has_wild) {
6360                         char *mod_newname = NULL;
6361                         if (!resolve_wildcards(ctx,
6362                                         directory,newname,&mod_newname)) {
6363                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6364                                 END_PROFILE(SMBcopy);
6365                                 return;
6366                         }
6367                         newname = mod_newname;
6368                 }
6369
6370                 status = check_name(conn, directory);
6371                 if (!NT_STATUS_IS_OK(status)) {
6372                         reply_nterror(req, status);
6373                         END_PROFILE(SMBcopy);
6374                         return;
6375                 }
6376
6377                 status = check_name(conn, newname);
6378                 if (!NT_STATUS_IS_OK(status)) {
6379                         reply_nterror(req, status);
6380                         END_PROFILE(SMBcopy);
6381                         return;
6382                 }
6383
6384                 status = copy_file(ctx,conn,directory,newname,ofun,
6385                                 count,target_is_directory);
6386
6387                 if(!NT_STATUS_IS_OK(status)) {
6388                         reply_nterror(req, status);
6389                         END_PROFILE(SMBcopy);
6390                         return;
6391                 } else {
6392                         count++;
6393                 }
6394         } else {
6395                 struct smb_Dir *dir_hnd = NULL;
6396                 const char *dname = NULL;
6397                 long offset = 0;
6398
6399                 if (strequal(mask,"????????.???")) {
6400                         mask = mask_star;
6401                 }
6402
6403                 status = check_name(conn, directory);
6404                 if (!NT_STATUS_IS_OK(status)) {
6405                         reply_nterror(req, status);
6406                         END_PROFILE(SMBcopy);
6407                         return;
6408                 }
6409
6410                 dir_hnd = OpenDir(talloc_tos(), conn, directory, mask, 0);
6411                 if (dir_hnd == NULL) {
6412                         status = map_nt_error_from_unix(errno);
6413                         reply_nterror(req, status);
6414                         END_PROFILE(SMBcopy);
6415                         return;
6416                 }
6417
6418                 error = ERRbadfile;
6419
6420                 while ((dname = ReadDirName(dir_hnd, &offset))) {
6421                         char *destname = NULL;
6422                         char *fname = NULL;
6423
6424                         if (ISDOT(dname) || ISDOTDOT(dname)) {
6425                                 continue;
6426                         }
6427
6428                         if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
6429                                 continue;
6430                         }
6431
6432                         if(!mask_match(dname, mask, conn->case_sensitive)) {
6433                                 continue;
6434                         }
6435
6436                         error = ERRnoaccess;
6437                         fname = talloc_asprintf(ctx,
6438                                         "%s/%s",
6439                                         directory,
6440                                         dname);
6441                         if (!fname) {
6442                                 TALLOC_FREE(dir_hnd);
6443                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6444                                 END_PROFILE(SMBcopy);
6445                                 return;
6446                         }
6447
6448                         if (!resolve_wildcards(ctx,
6449                                         fname,newname,&destname)) {
6450                                 continue;
6451                         }
6452                         if (!destname) {
6453                                 TALLOC_FREE(dir_hnd);
6454                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6455                                 END_PROFILE(SMBcopy);
6456                                 return;
6457                         }
6458
6459                         status = check_name(conn, fname);
6460                         if (!NT_STATUS_IS_OK(status)) {
6461                                 TALLOC_FREE(dir_hnd);
6462                                 reply_nterror(req, status);
6463                                 END_PROFILE(SMBcopy);
6464                                 return;
6465                         }
6466
6467                         status = check_name(conn, destname);
6468                         if (!NT_STATUS_IS_OK(status)) {
6469                                 TALLOC_FREE(dir_hnd);
6470                                 reply_nterror(req, status);
6471                                 END_PROFILE(SMBcopy);
6472                                 return;
6473                         }
6474
6475                         DEBUG(3,("reply_copy : doing copy on %s -> %s\n",fname, destname));
6476
6477                         status = copy_file(ctx,conn,fname,destname,ofun,
6478                                         count,target_is_directory);
6479                         if (NT_STATUS_IS_OK(status)) {
6480                                 count++;
6481                         }
6482                         TALLOC_FREE(fname);
6483                         TALLOC_FREE(destname);
6484                 }
6485                 TALLOC_FREE(dir_hnd);
6486         }
6487
6488         if (count == 0) {
6489                 if(err) {
6490                         /* Error on close... */
6491                         errno = err;
6492                         reply_unixerror(req, ERRHRD, ERRgeneral);
6493                         END_PROFILE(SMBcopy);
6494                         return;
6495                 }
6496
6497                 reply_doserror(req, ERRDOS, error);
6498                 END_PROFILE(SMBcopy);
6499                 return;
6500         }
6501
6502         reply_outbuf(req, 1, 0);
6503         SSVAL(req->outbuf,smb_vwv0,count);
6504
6505         END_PROFILE(SMBcopy);
6506         return;
6507 }
6508
6509 #undef DBGC_CLASS
6510 #define DBGC_CLASS DBGC_LOCKING
6511
6512 /****************************************************************************
6513  Get a lock pid, dealing with large count requests.
6514 ****************************************************************************/
6515
6516 uint32 get_lock_pid(const uint8_t *data, int data_offset,
6517                     bool large_file_format)
6518 {
6519         if(!large_file_format)
6520                 return (uint32)SVAL(data,SMB_LPID_OFFSET(data_offset));
6521         else
6522                 return (uint32)SVAL(data,SMB_LARGE_LPID_OFFSET(data_offset));
6523 }
6524
6525 /****************************************************************************
6526  Get a lock count, dealing with large count requests.
6527 ****************************************************************************/
6528
6529 uint64_t get_lock_count(const uint8_t *data, int data_offset,
6530                         bool large_file_format)
6531 {
6532         uint64_t count = 0;
6533
6534         if(!large_file_format) {
6535                 count = (uint64_t)IVAL(data,SMB_LKLEN_OFFSET(data_offset));
6536         } else {
6537
6538 #if defined(HAVE_LONGLONG)
6539                 count = (((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset))) << 32) |
6540                         ((uint64_t) IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)));
6541 #else /* HAVE_LONGLONG */
6542
6543                 /*
6544                  * NT4.x seems to be broken in that it sends large file (64 bit)
6545                  * lockingX calls even if the CAP_LARGE_FILES was *not*
6546                  * negotiated. For boxes without large unsigned ints truncate the
6547                  * lock count by dropping the top 32 bits.
6548                  */
6549
6550                 if(IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)) != 0) {
6551                         DEBUG(3,("get_lock_count: truncating lock count (high)0x%x (low)0x%x to just low count.\n",
6552                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)),
6553                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)) ));
6554                                 SIVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset),0);
6555                 }
6556
6557                 count = (uint64_t)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset));
6558 #endif /* HAVE_LONGLONG */
6559         }
6560
6561         return count;
6562 }
6563
6564 #if !defined(HAVE_LONGLONG)
6565 /****************************************************************************
6566  Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-).
6567 ****************************************************************************/
6568
6569 static uint32 map_lock_offset(uint32 high, uint32 low)
6570 {
6571         unsigned int i;
6572         uint32 mask = 0;
6573         uint32 highcopy = high;
6574
6575         /*
6576          * Try and find out how many significant bits there are in high.
6577          */
6578
6579         for(i = 0; highcopy; i++)
6580                 highcopy >>= 1;
6581
6582         /*
6583          * We use 31 bits not 32 here as POSIX
6584          * lock offsets may not be negative.
6585          */
6586
6587         mask = (~0) << (31 - i);
6588
6589         if(low & mask)
6590                 return 0; /* Fail. */
6591
6592         high <<= (31 - i);
6593
6594         return (high|low);
6595 }
6596 #endif /* !defined(HAVE_LONGLONG) */
6597
6598 /****************************************************************************
6599  Get a lock offset, dealing with large offset requests.
6600 ****************************************************************************/
6601
6602 uint64_t get_lock_offset(const uint8_t *data, int data_offset,
6603                          bool large_file_format, bool *err)
6604 {
6605         uint64_t offset = 0;
6606
6607         *err = False;
6608
6609         if(!large_file_format) {
6610                 offset = (uint64_t)IVAL(data,SMB_LKOFF_OFFSET(data_offset));
6611         } else {
6612
6613 #if defined(HAVE_LONGLONG)
6614                 offset = (((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset))) << 32) |
6615                                 ((uint64_t) IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset)));
6616 #else /* HAVE_LONGLONG */
6617
6618                 /*
6619                  * NT4.x seems to be broken in that it sends large file (64 bit)
6620                  * lockingX calls even if the CAP_LARGE_FILES was *not*
6621                  * negotiated. For boxes without large unsigned ints mangle the
6622                  * lock offset by mapping the top 32 bits onto the lower 32.
6623                  */
6624
6625                 if(IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset)) != 0) {
6626                         uint32 low = IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
6627                         uint32 high = IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset));
6628                         uint32 new_low = 0;
6629
6630                         if((new_low = map_lock_offset(high, low)) == 0) {
6631                                 *err = True;
6632                                 return (uint64_t)-1;
6633                         }
6634
6635                         DEBUG(3,("get_lock_offset: truncating lock offset (high)0x%x (low)0x%x to offset 0x%x.\n",
6636                                 (unsigned int)high, (unsigned int)low, (unsigned int)new_low ));
6637                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset),0);
6638                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset),new_low);
6639                 }
6640
6641                 offset = (uint64_t)IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
6642 #endif /* HAVE_LONGLONG */
6643         }
6644
6645         return offset;
6646 }
6647
6648 /****************************************************************************
6649  Reply to a lockingX request.
6650 ****************************************************************************/
6651
6652 void reply_lockingX(struct smb_request *req)
6653 {
6654         connection_struct *conn = req->conn;
6655         files_struct *fsp;
6656         unsigned char locktype;
6657         unsigned char oplocklevel;
6658         uint16 num_ulocks;
6659         uint16 num_locks;
6660         uint64_t count = 0, offset = 0;
6661         uint32 lock_pid;
6662         int32 lock_timeout;
6663         int i;
6664         const uint8_t *data;
6665         bool large_file_format;
6666         bool err;
6667         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
6668
6669         START_PROFILE(SMBlockingX);
6670
6671         if (req->wct < 8) {
6672                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6673                 END_PROFILE(SMBlockingX);
6674                 return;
6675         }
6676
6677         fsp = file_fsp(req, SVAL(req->vwv+2, 0));
6678         locktype = CVAL(req->vwv+3, 0);
6679         oplocklevel = CVAL(req->vwv+3, 1);
6680         num_ulocks = SVAL(req->vwv+6, 0);
6681         num_locks = SVAL(req->vwv+7, 0);
6682         lock_timeout = IVAL(req->vwv+4, 0);
6683         large_file_format = (locktype & LOCKING_ANDX_LARGE_FILES)?True:False;
6684
6685         if (!check_fsp(conn, req, fsp)) {
6686                 END_PROFILE(SMBlockingX);
6687                 return;
6688         }
6689
6690         data = req->buf;
6691
6692         if (locktype & LOCKING_ANDX_CHANGE_LOCKTYPE) {
6693                 /* we don't support these - and CANCEL_LOCK makes w2k
6694                    and XP reboot so I don't really want to be
6695                    compatible! (tridge) */
6696                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRnoatomiclocks));
6697                 END_PROFILE(SMBlockingX);
6698                 return;
6699         }
6700
6701         /* Check if this is an oplock break on a file
6702            we have granted an oplock on.
6703         */
6704         if ((locktype & LOCKING_ANDX_OPLOCK_RELEASE)) {
6705                 /* Client can insist on breaking to none. */
6706                 bool break_to_none = (oplocklevel == 0);
6707                 bool result;
6708
6709                 DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
6710                          "for fnum = %d\n", (unsigned int)oplocklevel,
6711                          fsp->fnum ));
6712
6713                 /*
6714                  * Make sure we have granted an exclusive or batch oplock on
6715                  * this file.
6716                  */
6717
6718                 if (fsp->oplock_type == 0) {
6719
6720                         /* The Samba4 nbench simulator doesn't understand
6721                            the difference between break to level2 and break
6722                            to none from level2 - it sends oplock break
6723                            replies in both cases. Don't keep logging an error
6724                            message here - just ignore it. JRA. */
6725
6726                         DEBUG(5,("reply_lockingX: Error : oplock break from "
6727                                  "client for fnum = %d (oplock=%d) and no "
6728                                  "oplock granted on this file (%s).\n",
6729                                  fsp->fnum, fsp->oplock_type, fsp->fsp_name));
6730
6731                         /* if this is a pure oplock break request then don't
6732                          * send a reply */
6733                         if (num_locks == 0 && num_ulocks == 0) {
6734                                 END_PROFILE(SMBlockingX);
6735                                 return;
6736                         } else {
6737                                 END_PROFILE(SMBlockingX);
6738                                 reply_doserror(req, ERRDOS, ERRlock);
6739                                 return;
6740                         }
6741                 }
6742
6743                 if ((fsp->sent_oplock_break == BREAK_TO_NONE_SENT) ||
6744                     (break_to_none)) {
6745                         result = remove_oplock(fsp);
6746                 } else {
6747                         result = downgrade_oplock(fsp);
6748                 }
6749
6750                 if (!result) {
6751                         DEBUG(0, ("reply_lockingX: error in removing "
6752                                   "oplock on file %s\n", fsp->fsp_name));
6753                         /* Hmmm. Is this panic justified? */
6754                         smb_panic("internal tdb error");
6755                 }
6756
6757                 reply_to_oplock_break_requests(fsp);
6758
6759                 /* if this is a pure oplock break request then don't send a
6760                  * reply */
6761                 if (num_locks == 0 && num_ulocks == 0) {
6762                         /* Sanity check - ensure a pure oplock break is not a
6763                            chained request. */
6764                         if(CVAL(req->vwv+0, 0) != 0xff)
6765                                 DEBUG(0,("reply_lockingX: Error : pure oplock "
6766                                          "break is a chained %d request !\n",
6767                                          (unsigned int)CVAL(req->vwv+0, 0)));
6768                         END_PROFILE(SMBlockingX);
6769                         return;
6770                 }
6771         }
6772
6773         /*
6774          * We do this check *after* we have checked this is not a oplock break
6775          * response message. JRA.
6776          */
6777
6778         release_level_2_oplocks_on_change(fsp);
6779
6780         if (req->buflen <
6781             (num_ulocks + num_locks) * (large_file_format ? 20 : 10)) {
6782                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6783                 END_PROFILE(SMBlockingX);
6784                 return;
6785         }
6786
6787         /* Data now points at the beginning of the list
6788            of smb_unlkrng structs */
6789         for(i = 0; i < (int)num_ulocks; i++) {
6790                 lock_pid = get_lock_pid( data, i, large_file_format);
6791                 count = get_lock_count( data, i, large_file_format);
6792                 offset = get_lock_offset( data, i, large_file_format, &err);
6793
6794                 /*
6795                  * There is no error code marked "stupid client bug".... :-).
6796                  */
6797                 if(err) {
6798                         END_PROFILE(SMBlockingX);
6799                         reply_doserror(req, ERRDOS, ERRnoaccess);
6800                         return;
6801                 }
6802
6803                 DEBUG(10,("reply_lockingX: unlock start=%.0f, len=%.0f for "
6804                           "pid %u, file %s\n", (double)offset, (double)count,
6805                           (unsigned int)lock_pid, fsp->fsp_name ));
6806
6807                 status = do_unlock(smbd_messaging_context(),
6808                                 fsp,
6809                                 lock_pid,
6810                                 count,
6811                                 offset,
6812                                 WINDOWS_LOCK);
6813
6814                 if (NT_STATUS_V(status)) {
6815                         END_PROFILE(SMBlockingX);
6816                         reply_nterror(req, status);
6817                         return;
6818                 }
6819         }
6820
6821         /* Setup the timeout in seconds. */
6822
6823         if (!lp_blocking_locks(SNUM(conn))) {
6824                 lock_timeout = 0;
6825         }
6826
6827         /* Now do any requested locks */
6828         data += ((large_file_format ? 20 : 10)*num_ulocks);
6829
6830         /* Data now points at the beginning of the list
6831            of smb_lkrng structs */
6832
6833         for(i = 0; i < (int)num_locks; i++) {
6834                 enum brl_type lock_type = ((locktype & LOCKING_ANDX_SHARED_LOCK) ?
6835                                 READ_LOCK:WRITE_LOCK);
6836                 lock_pid = get_lock_pid( data, i, large_file_format);
6837                 count = get_lock_count( data, i, large_file_format);
6838                 offset = get_lock_offset( data, i, large_file_format, &err);
6839
6840                 /*
6841                  * There is no error code marked "stupid client bug".... :-).
6842                  */
6843                 if(err) {
6844                         END_PROFILE(SMBlockingX);
6845                         reply_doserror(req, ERRDOS, ERRnoaccess);
6846                         return;
6847                 }
6848
6849                 DEBUG(10,("reply_lockingX: lock start=%.0f, len=%.0f for pid "
6850                           "%u, file %s timeout = %d\n", (double)offset,
6851                           (double)count, (unsigned int)lock_pid,
6852                           fsp->fsp_name, (int)lock_timeout ));
6853
6854                 if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
6855                         if (lp_blocking_locks(SNUM(conn))) {
6856
6857                                 /* Schedule a message to ourselves to
6858                                    remove the blocking lock record and
6859                                    return the right error. */
6860
6861                                 if (!blocking_lock_cancel(fsp,
6862                                                 lock_pid,
6863                                                 offset,
6864                                                 count,
6865                                                 WINDOWS_LOCK,
6866                                                 locktype,
6867                                                 NT_STATUS_FILE_LOCK_CONFLICT)) {
6868                                         END_PROFILE(SMBlockingX);
6869                                         reply_nterror(
6870                                                 req,
6871                                                 NT_STATUS_DOS(
6872                                                         ERRDOS,
6873                                                         ERRcancelviolation));
6874                                         return;
6875                                 }
6876                         }
6877                         /* Remove a matching pending lock. */
6878                         status = do_lock_cancel(fsp,
6879                                                 lock_pid,
6880                                                 count,
6881                                                 offset,
6882                                                 WINDOWS_LOCK);
6883                 } else {
6884                         bool blocking_lock = lock_timeout ? True : False;
6885                         bool defer_lock = False;
6886                         struct byte_range_lock *br_lck;
6887                         uint32 block_smbpid;
6888
6889                         br_lck = do_lock(smbd_messaging_context(),
6890                                         fsp,
6891                                         lock_pid,
6892                                         count,
6893                                         offset,
6894                                         lock_type,
6895                                         WINDOWS_LOCK,
6896                                         blocking_lock,
6897                                         &status,
6898                                         &block_smbpid);
6899
6900                         if (br_lck && blocking_lock && ERROR_WAS_LOCK_DENIED(status)) {
6901                                 /* Windows internal resolution for blocking locks seems
6902                                    to be about 200ms... Don't wait for less than that. JRA. */
6903                                 if (lock_timeout != -1 && lock_timeout < lp_lock_spin_time()) {
6904                                         lock_timeout = lp_lock_spin_time();
6905                                 }
6906                                 defer_lock = True;
6907                         }
6908
6909                         /* This heuristic seems to match W2K3 very well. If a
6910                            lock sent with timeout of zero would fail with NT_STATUS_FILE_LOCK_CONFLICT
6911                            it pretends we asked for a timeout of between 150 - 300 milliseconds as
6912                            far as I can tell. Replacement for do_lock_spin(). JRA. */
6913
6914                         if (br_lck && lp_blocking_locks(SNUM(conn)) && !blocking_lock &&
6915                                         NT_STATUS_EQUAL((status), NT_STATUS_FILE_LOCK_CONFLICT)) {
6916                                 defer_lock = True;
6917                                 lock_timeout = lp_lock_spin_time();
6918                         }
6919
6920                         if (br_lck && defer_lock) {
6921                                 /*
6922                                  * A blocking lock was requested. Package up
6923                                  * this smb into a queued request and push it
6924                                  * onto the blocking lock queue.
6925                                  */
6926                                 if(push_blocking_lock_request(br_lck,
6927                                                         req,
6928                                                         fsp,
6929                                                         lock_timeout,
6930                                                         i,
6931                                                         lock_pid,
6932                                                         lock_type,
6933                                                         WINDOWS_LOCK,
6934                                                         offset,
6935                                                         count,
6936                                                         block_smbpid)) {
6937                                         TALLOC_FREE(br_lck);
6938                                         END_PROFILE(SMBlockingX);
6939                                         return;
6940                                 }
6941                         }
6942
6943                         TALLOC_FREE(br_lck);
6944                 }
6945
6946                 if (NT_STATUS_V(status)) {
6947                         END_PROFILE(SMBlockingX);
6948                         reply_nterror(req, status);
6949                         return;
6950                 }
6951         }
6952
6953         /* If any of the above locks failed, then we must unlock
6954            all of the previous locks (X/Open spec). */
6955
6956         if (!(locktype & LOCKING_ANDX_CANCEL_LOCK) &&
6957                         (i != num_locks) &&
6958                         (num_locks != 0)) {
6959                 /*
6960                  * Ensure we don't do a remove on the lock that just failed,
6961                  * as under POSIX rules, if we have a lock already there, we
6962                  * will delete it (and we shouldn't) .....
6963                  */
6964                 for(i--; i >= 0; i--) {
6965                         lock_pid = get_lock_pid( data, i, large_file_format);
6966                         count = get_lock_count( data, i, large_file_format);
6967                         offset = get_lock_offset( data, i, large_file_format,
6968                                                   &err);
6969
6970                         /*
6971                          * There is no error code marked "stupid client
6972                          * bug".... :-).
6973                          */
6974                         if(err) {
6975                                 END_PROFILE(SMBlockingX);
6976                                 reply_doserror(req, ERRDOS, ERRnoaccess);
6977                                 return;
6978                         }
6979
6980                         do_unlock(smbd_messaging_context(),
6981                                 fsp,
6982                                 lock_pid,
6983                                 count,
6984                                 offset,
6985                                 WINDOWS_LOCK);
6986                 }
6987                 END_PROFILE(SMBlockingX);
6988                 reply_nterror(req, status);
6989                 return;
6990         }
6991
6992         reply_outbuf(req, 2, 0);
6993
6994         DEBUG(3, ("lockingX fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
6995                   fsp->fnum, (unsigned int)locktype, num_locks, num_ulocks));
6996
6997         END_PROFILE(SMBlockingX);
6998         chain_reply(req);
6999 }
7000
7001 #undef DBGC_CLASS
7002 #define DBGC_CLASS DBGC_ALL
7003
7004 /****************************************************************************
7005  Reply to a SMBreadbmpx (read block multiplex) request.
7006  Always reply with an error, if someone has a platform really needs this,
7007  please contact vl@samba.org
7008 ****************************************************************************/
7009
7010 void reply_readbmpx(struct smb_request *req)
7011 {
7012         START_PROFILE(SMBreadBmpx);
7013         reply_doserror(req, ERRSRV, ERRuseSTD);
7014         END_PROFILE(SMBreadBmpx);
7015         return;
7016 }
7017
7018 /****************************************************************************
7019  Reply to a SMBreadbs (read block multiplex secondary) request.
7020  Always reply with an error, if someone has a platform really needs this,
7021  please contact vl@samba.org
7022 ****************************************************************************/
7023
7024 void reply_readbs(struct smb_request *req)
7025 {
7026         START_PROFILE(SMBreadBs);
7027         reply_doserror(req, ERRSRV, ERRuseSTD);
7028         END_PROFILE(SMBreadBs);
7029         return;
7030 }
7031
7032 /****************************************************************************
7033  Reply to a SMBsetattrE.
7034 ****************************************************************************/
7035
7036 void reply_setattrE(struct smb_request *req)
7037 {
7038         connection_struct *conn = req->conn;
7039         struct timespec ts[2];
7040         files_struct *fsp;
7041         SMB_STRUCT_STAT sbuf;
7042         NTSTATUS status;
7043
7044         START_PROFILE(SMBsetattrE);
7045
7046         if (req->wct < 7) {
7047                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7048                 END_PROFILE(SMBsetattrE);
7049                 return;
7050         }
7051
7052         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
7053
7054         if(!fsp || (fsp->conn != conn)) {
7055                 reply_doserror(req, ERRDOS, ERRbadfid);
7056                 END_PROFILE(SMBsetattrE);
7057                 return;
7058         }
7059
7060
7061         /*
7062          * Convert the DOS times into unix times. Ignore create
7063          * time as UNIX can't set this.
7064          */
7065
7066         ts[0] = convert_time_t_to_timespec(
7067                 srv_make_unix_date2(req->vwv+3)); /* atime. */
7068         ts[1] = convert_time_t_to_timespec(
7069                 srv_make_unix_date2(req->vwv+5)); /* mtime. */
7070
7071         reply_outbuf(req, 0, 0);
7072
7073         /*
7074          * Patch from Ray Frush <frush@engr.colostate.edu>
7075          * Sometimes times are sent as zero - ignore them.
7076          */
7077
7078         /* Ensure we have a valid stat struct for the source. */
7079         if (fsp->fh->fd != -1) {
7080                 if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
7081                         status = map_nt_error_from_unix(errno);
7082                         reply_nterror(req, status);
7083                         END_PROFILE(SMBsetattrE);
7084                         return;
7085                 }
7086         } else {
7087                 if (SMB_VFS_STAT(conn, fsp->fsp_name, &sbuf) == -1) {
7088                         status = map_nt_error_from_unix(errno);
7089                         reply_nterror(req, status);
7090                         END_PROFILE(SMBsetattrE);
7091                         return;
7092                 }
7093         }
7094
7095         status = smb_set_file_time(conn, fsp, fsp->fsp_name,
7096                                    &sbuf, ts, true);
7097         if (!NT_STATUS_IS_OK(status)) {
7098                 reply_doserror(req, ERRDOS, ERRnoaccess);
7099                 END_PROFILE(SMBsetattrE);
7100                 return;
7101         }
7102
7103         DEBUG( 3, ( "reply_setattrE fnum=%d actime=%u modtime=%u\n",
7104                 fsp->fnum,
7105                 (unsigned int)ts[0].tv_sec,
7106                 (unsigned int)ts[1].tv_sec));
7107
7108         END_PROFILE(SMBsetattrE);
7109         return;
7110 }
7111
7112
7113 /* Back from the dead for OS/2..... JRA. */
7114
7115 /****************************************************************************
7116  Reply to a SMBwritebmpx (write block multiplex primary) request.
7117  Always reply with an error, if someone has a platform really needs this,
7118  please contact vl@samba.org
7119 ****************************************************************************/
7120
7121 void reply_writebmpx(struct smb_request *req)
7122 {
7123         START_PROFILE(SMBwriteBmpx);
7124         reply_doserror(req, ERRSRV, ERRuseSTD);
7125         END_PROFILE(SMBwriteBmpx);
7126         return;
7127 }
7128
7129 /****************************************************************************
7130  Reply to a SMBwritebs (write block multiplex secondary) request.
7131  Always reply with an error, if someone has a platform really needs this,
7132  please contact vl@samba.org
7133 ****************************************************************************/
7134
7135 void reply_writebs(struct smb_request *req)
7136 {
7137         START_PROFILE(SMBwriteBs);
7138         reply_doserror(req, ERRSRV, ERRuseSTD);
7139         END_PROFILE(SMBwriteBs);
7140         return;
7141 }
7142
7143 /****************************************************************************
7144  Reply to a SMBgetattrE.
7145 ****************************************************************************/
7146
7147 void reply_getattrE(struct smb_request *req)
7148 {
7149         connection_struct *conn = req->conn;
7150         SMB_STRUCT_STAT sbuf;
7151         int mode;
7152         files_struct *fsp;
7153         struct timespec create_ts;
7154
7155         START_PROFILE(SMBgetattrE);
7156
7157         if (req->wct < 1) {
7158                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7159                 END_PROFILE(SMBgetattrE);
7160                 return;
7161         }
7162
7163         fsp = file_fsp(req, SVAL(req->vwv+0, 0));
7164
7165         if(!fsp || (fsp->conn != conn)) {
7166                 reply_doserror(req, ERRDOS, ERRbadfid);
7167                 END_PROFILE(SMBgetattrE);
7168                 return;
7169         }
7170
7171         /* Do an fstat on this file */
7172         if(fsp_stat(fsp, &sbuf)) {
7173                 reply_unixerror(req, ERRDOS, ERRnoaccess);
7174                 END_PROFILE(SMBgetattrE);
7175                 return;
7176         }
7177
7178         mode = dos_mode(conn,fsp->fsp_name,&sbuf);
7179
7180         /*
7181          * Convert the times into dos times. Set create
7182          * date to be last modify date as UNIX doesn't save
7183          * this.
7184          */
7185
7186         reply_outbuf(req, 11, 0);
7187
7188         create_ts = get_create_timespec(&sbuf,
7189                                   lp_fake_dir_create_times(SNUM(conn)));
7190         srv_put_dos_date2((char *)req->outbuf, smb_vwv0, create_ts.tv_sec);
7191         srv_put_dos_date2((char *)req->outbuf, smb_vwv2, sbuf.st_atime);
7192         /* Should we check pending modtime here ? JRA */
7193         srv_put_dos_date2((char *)req->outbuf, smb_vwv4, sbuf.st_mtime);
7194
7195         if (mode & aDIR) {
7196                 SIVAL(req->outbuf, smb_vwv6, 0);
7197                 SIVAL(req->outbuf, smb_vwv8, 0);
7198         } else {
7199                 uint32 allocation_size = get_allocation_size(conn,fsp, &sbuf);
7200                 SIVAL(req->outbuf, smb_vwv6, (uint32)sbuf.st_size);
7201                 SIVAL(req->outbuf, smb_vwv8, allocation_size);
7202         }
7203         SSVAL(req->outbuf,smb_vwv10, mode);
7204
7205         DEBUG( 3, ( "reply_getattrE fnum=%d\n", fsp->fnum));
7206
7207         END_PROFILE(SMBgetattrE);
7208         return;
7209 }