source/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 unsigned int smb_echo_count = 0;
  33 extern uint32 global_client_caps;
  34
  35 extern struct current_user current_user;
  36 extern bool global_encrypted_passwords_negotiated;
  37
  38 /****************************************************************************
  39  Ensure we check the path in *exactly* the same way as W2K for a findfirst/findnext
  40  path or anything including wildcards.
  41  We're assuming here that '/' is not the second byte in any multibyte char
  42  set (a safe assumption). '\\' *may* be the second byte in a multibyte char
  43  set.
  44 ****************************************************************************/
  45
  46 /* Custom version for processing POSIX paths. */
  47 #define IS_PATH_SEP(c,posix_only) ((c) == '/' || (!(posix_only) && (c) == '\\'))
  48
  49 static NTSTATUS check_path_syntax_internal(char *path,
  50                                            bool posix_path,
  51                                            bool *p_last_component_contains_wcard)
  52 {
  53         char *d = path;
  54         const char *s = path;
  55         NTSTATUS ret = NT_STATUS_OK;
  56         bool start_of_name_component = True;
  57
  58         *p_last_component_contains_wcard = False;
  59
  60         while (*s) {
  61                 if (IS_PATH_SEP(*s,posix_path)) {
  62                         /*
  63                          * Safe to assume is not the second part of a mb char
  64                          * as this is handled below.
  65                          */
  66                         /* Eat multiple '/' or '\\' */
  67                         while (IS_PATH_SEP(*s,posix_path)) {
  68                                 s++;
  69                         }
  70                         if ((d != path) && (*s != '\0')) {
  71                                 /* We only care about non-leading or trailing '/' or '\\' */
  72                                 *d++ = '/';
  73                         }
  74
  75                         start_of_name_component = True;
  76                         /* New component. */
  77                         *p_last_component_contains_wcard = False;
  78                         continue;
  79                 }
  80
  81                 if (start_of_name_component) {
  82                         if ((s[0] == '.') && (s[1] == '.') && (IS_PATH_SEP(s[2],posix_path) || s[2] == '\0')) {
  83                                 /* Uh oh - "/../" or "\\..\\"  or "/..\0" or "\\..\0" ! */
  84
  85                                 /*
  86                                  * No mb char starts with '.' so we're safe checking the directory separator here.
  87                                  */
  88
  89                                 /* If  we just added a '/' - delete it */
  90                                 if ((d > path) && (*(d-1) == '/')) {
  91                                         *(d-1) = '\0';
  92                                         d--;
  93                                 }
  94
  95                                 /* Are we at the start ? Can't go back further if so. */
  96                                 if (d <= path) {
  97                                         ret = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
  98                                         break;
  99                                 }
 100                                 /* Go back one level... */
 101                                 /* We know this is safe as '/' cannot be part of a mb sequence. */
 102                                 /* NOTE - if this assumption is invalid we are not in good shape... */
 103                                 /* Decrement d first as d points to the *next* char to write into. */
 104                                 for (d--; d > path; d--) {
 105                                         if (*d == '/')
 106                                                 break;
 107                                 }
 108                                 s += 2; /* Else go past the .. */
 109                                 /* We're still at the start of a name component, just the previous one. */
 110                                 continue;
 111
 112                         } else if ((s[0] == '.') && ((s[1] == '\0') || IS_PATH_SEP(s[1],posix_path))) {
 113                                 if (posix_path) {
 114                                         /* Eat the '.' */
 115                                         s++;
 116                                         continue;
 117                                 }
 118                         }
 119
 120                 }
 121
 122                 if (!(*s & 0x80)) {
 123                         if (!posix_path) {
 124                                 if (*s <= 0x1f) {
 125                                         return NT_STATUS_OBJECT_NAME_INVALID;
 126                                 }
 127                                 switch (*s) {
 128                                         case '*':
 129                                         case '?':
 130                                         case '<':
 131                                         case '>':
 132                                         case '"':
 133                                                 *p_last_component_contains_wcard = True;
 134                                                 break;
 135                                         default:
 136                                                 break;
 137                                 }
 138                         }
 139                         *d++ = *s++;
 140                 } else {
 141                         size_t siz;
 142                         /* Get the size of the next MB character. */
 143                         next_codepoint(s,&siz);
 144                         switch(siz) {
 145                                 case 5:
 146                                         *d++ = *s++;
 147                                         /*fall through*/
 148                                 case 4:
 149                                         *d++ = *s++;
 150                                         /*fall through*/
 151                                 case 3:
 152                                         *d++ = *s++;
 153                                         /*fall through*/
 154                                 case 2:
 155                                         *d++ = *s++;
 156                                         /*fall through*/
 157                                 case 1:
 158                                         *d++ = *s++;
 159                                         break;
 160                                 default:
 161                                         DEBUG(0,("check_path_syntax_internal: character length assumptions invalid !\n"));
 162                                         *d = '\0';
 163                                         return NT_STATUS_INVALID_PARAMETER;
 164                         }
 165                 }
 166                 start_of_name_component = False;
 167         }
 168
 169         *d = '\0';
 170
 171         return ret;
 172 }
 173
 174 /****************************************************************************
 175  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
 176  No wildcards allowed.
 177 ****************************************************************************/
 178
 179 NTSTATUS check_path_syntax(char *path)
 180 {
 181         bool ignore;
 182         return check_path_syntax_internal(path, False, &ignore);
 183 }
 184
 185 /****************************************************************************
 186  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
 187  Wildcards allowed - p_contains_wcard returns true if the last component contained
 188  a wildcard.
 189 ****************************************************************************/
 190
 191 NTSTATUS check_path_syntax_wcard(char *path, bool *p_contains_wcard)
 192 {
 193         return check_path_syntax_internal(path, False, p_contains_wcard);
 194 }
 195
 196 /****************************************************************************
 197  Check the path for a POSIX client.
 198  We're assuming here that '/' is not the second byte in any multibyte char
 199  set (a safe assumption).
 200 ****************************************************************************/
 201
 202 NTSTATUS check_path_syntax_posix(char *path)
 203 {
 204         bool ignore;
 205         return check_path_syntax_internal(path, True, &ignore);
 206 }
 207
 208 /****************************************************************************
 209  Pull a string and check the path allowing a wilcard - provide for error return.
 210 ****************************************************************************/
 211
 212 size_t srvstr_get_path_wcard(TALLOC_CTX *ctx,
 213                         const char *inbuf,
 214                         uint16 smb_flags2,
 215                         char **pp_dest,
 216                         const char *src,
 217                         size_t src_len,
 218                         int flags,
 219                         NTSTATUS *err,
 220                         bool *contains_wcard)
 221 {
 222         size_t ret;
 223
 224         *pp_dest = NULL;
 225
 226         if (src_len == 0) {
 227                 ret = srvstr_pull_buf_talloc(ctx,
 228                                 inbuf,
 229                                 smb_flags2,
 230                                 pp_dest,
 231                                 src,
 232                                 flags);
 233         } else {
 234                 ret = srvstr_pull_talloc(ctx,
 235                                 inbuf,
 236                                 smb_flags2,
 237                                 pp_dest,
 238                                 src,
 239                                 src_len,
 240                                 flags);
 241         }
 242
 243         if (!*pp_dest) {
 244                 *err = NT_STATUS_INVALID_PARAMETER;
 245                 return ret;
 246         }
 247
 248         *contains_wcard = False;
 249
 250         if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
 251                 /*
 252                  * For a DFS path the function parse_dfs_path()
 253                  * will do the path processing, just make a copy.
 254                  */
 255                 *err = NT_STATUS_OK;
 256                 return ret;
 257         }
 258
 259         if (lp_posix_pathnames()) {
 260                 *err = check_path_syntax_posix(*pp_dest);
 261         } else {
 262                 *err = check_path_syntax_wcard(*pp_dest, contains_wcard);
 263         }
 264
 265         return ret;
 266 }
 267
 268 /****************************************************************************
 269  Pull a string and check the path - provide for error return.
 270 ****************************************************************************/
 271
 272 size_t srvstr_get_path(TALLOC_CTX *ctx,
 273                         const char *inbuf,
 274                         uint16 smb_flags2,
 275                         char **pp_dest,
 276                         const char *src,
 277                         size_t src_len,
 278                         int flags,
 279                         NTSTATUS *err)
 280 {
 281         size_t ret;
 282
 283         *pp_dest = NULL;
 284
 285         if (src_len == 0) {
 286                 ret = srvstr_pull_buf_talloc(ctx,
 287                                         inbuf,
 288                                         smb_flags2,
 289                                         pp_dest,
 290                                         src,
 291                                         flags);
 292         } else {
 293                 ret = srvstr_pull_talloc(ctx,
 294                                 inbuf,
 295                                 smb_flags2,
 296                                 pp_dest,
 297                                 src,
 298                                 src_len,
 299                                 flags);
 300         }
 301
 302         if (!*pp_dest) {
 303                 *err = NT_STATUS_INVALID_PARAMETER;
 304                 return ret;
 305         }
 306
 307         if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
 308                 /*
 309                  * For a DFS path the function parse_dfs_path()
 310                  * will do the path processing, just make a copy.
 311                  */
 312                 *err = NT_STATUS_OK;
 313                 return ret;
 314         }
 315
 316         if (lp_posix_pathnames()) {
 317                 *err = check_path_syntax_posix(*pp_dest);
 318         } else {
 319                 *err = check_path_syntax(*pp_dest);
 320         }
 321
 322         return ret;
 323 }
 324
 325 /****************************************************************************
 326  Check if we have a correct fsp pointing to a file. Basic check for open fsp.
 327 ****************************************************************************/
 328
 329 bool check_fsp_open(connection_struct *conn, struct smb_request *req,
 330                files_struct *fsp, struct current_user *user)
 331 {
 332         if (!(fsp) || !(conn)) {
 333                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 334                 return False;
 335         }
 336         if (((conn) != (fsp)->conn) || user->vuid != (fsp)->vuid) {
 337                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 338                 return False;
 339         }
 340         return True;
 341 }
 342
 343 /****************************************************************************
 344  Check if we have a correct fsp pointing to a file. Replacement for the
 345  CHECK_FSP macro.
 346 ****************************************************************************/
 347
 348 bool check_fsp(connection_struct *conn, struct smb_request *req,
 349                files_struct *fsp, struct current_user *user)
 350 {
 351         if (!check_fsp_open(conn, req, fsp, user)) {
 352                 return False;
 353         }
 354         if ((fsp)->is_directory) {
 355                 reply_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
 356                 return False;
 357         }
 358         if ((fsp)->fh->fd == -1) {
 359                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 360                 return False;
 361         }
 362         (fsp)->num_smb_operations++;
 363         return True;
 364 }
 365
 366 /****************************************************************************
 367  Check if we have a correct fsp. Replacement for the FSP_BELONGS_CONN macro
 368 ****************************************************************************/
 369
 370 bool fsp_belongs_conn(connection_struct *conn, struct smb_request *req,
 371                       files_struct *fsp, struct current_user *user)
 372 {
 373         if ((fsp) && (conn) && ((conn)==(fsp)->conn)
 374             && (current_user.vuid==(fsp)->vuid)) {
 375                 return True;
 376         }
 377
 378         reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 379         return False;
 380 }
 381
 382 /****************************************************************************
 383  Reply to a (netbios-level) special message.
 384 ****************************************************************************/
 385
 386 void reply_special(char *inbuf)
 387 {
 388         int msg_type = CVAL(inbuf,0);
 389         int msg_flags = CVAL(inbuf,1);
 390         fstring name1,name2;
 391         char name_type = 0;
 392
 393         /*
 394          * We only really use 4 bytes of the outbuf, but for the smb_setlen
 395          * calculation & friends (srv_send_smb uses that) we need the full smb
 396          * header.
 397          */
 398         char outbuf[smb_size];
 399
 400         static bool already_got_session = False;
 401
 402         *name1 = *name2 = 0;
 403
 404         memset(outbuf, '\0', sizeof(outbuf));
 405
 406         smb_setlen(outbuf,0);
 407
 408         switch (msg_type) {
 409         case 0x81: /* session request */
 410
 411                 if (already_got_session) {
 412                         exit_server_cleanly("multiple session request not permitted");
 413                 }
 414
 415                 SCVAL(outbuf,0,0x82);
 416                 SCVAL(outbuf,3,0);
 417                 if (name_len(inbuf+4) > 50 ||
 418                     name_len(inbuf+4 + name_len(inbuf + 4)) > 50) {
 419                         DEBUG(0,("Invalid name length in session request\n"));
 420                         return;
 421                 }
 422                 name_extract(inbuf,4,name1);
 423                 name_type = name_extract(inbuf,4 + name_len(inbuf + 4),name2);
 424                 DEBUG(2,("netbios connect: name1=%s name2=%s\n",
 425                          name1,name2));
 426
 427                 set_local_machine_name(name1, True);
 428                 set_remote_machine_name(name2, True);
 429
 430                 DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
 431                          get_local_machine_name(), get_remote_machine_name(),
 432                          name_type));
 433
 434                 if (name_type == 'R') {
 435                         /* We are being asked for a pathworks session ---
 436                            no thanks! */
 437                         SCVAL(outbuf, 0,0x83);
 438                         break;
 439                 }
 440
 441                 /* only add the client's machine name to the list
 442                    of possibly valid usernames if we are operating
 443                    in share mode security */
 444                 if (lp_security() == SEC_SHARE) {
 445                         add_session_user(get_remote_machine_name());
 446                 }
 447
 448                 reload_services(True);
 449                 reopen_logs();
 450
 451                 already_got_session = True;
 452                 break;
 453
 454         case 0x89: /* session keepalive request
 455                       (some old clients produce this?) */
 456                 SCVAL(outbuf,0,SMBkeepalive);
 457                 SCVAL(outbuf,3,0);
 458                 break;
 459
 460         case 0x82: /* positive session response */
 461         case 0x83: /* negative session response */
 462         case 0x84: /* retarget session response */
 463                 DEBUG(0,("Unexpected session response\n"));
 464                 break;
 465
 466         case SMBkeepalive: /* session keepalive */
 467         default:
 468                 return;
 469         }
 470
 471         DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
 472                     msg_type, msg_flags));
 473
 474         srv_send_smb(smbd_server_fd(), outbuf, false);
 475         return;
 476 }
 477
 478 /****************************************************************************
 479  Reply to a tcon.
 480  conn POINTER CAN BE NULL HERE !
 481 ****************************************************************************/
 482
 483 void reply_tcon(struct smb_request *req)
 484 {
 485         connection_struct *conn = req->conn;
 486         const char *service;
 487         char *service_buf = NULL;
 488         char *password = NULL;
 489         char *dev = NULL;
 490         int pwlen=0;
 491         NTSTATUS nt_status;
 492         char *p;
 493         DATA_BLOB password_blob;
 494         TALLOC_CTX *ctx = talloc_tos();
 495
 496         START_PROFILE(SMBtcon);
 497
 498         if (smb_buflen(req->inbuf) < 4) {
 499                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 500                 END_PROFILE(SMBtcon);
 501                 return;
 502         }
 503
 504         p = smb_buf(req->inbuf)+1;
 505         p += srvstr_pull_buf_talloc(ctx, req->inbuf, req->flags2,
 506                                     &service_buf, p, STR_TERMINATE) + 1;
 507         pwlen = srvstr_pull_buf_talloc(ctx, req->inbuf, req->flags2,
 508                                        &password, p, STR_TERMINATE) + 1;
 509         p += pwlen;
 510         p += srvstr_pull_buf_talloc(ctx, req->inbuf, req->flags2,
 511                                     &dev, p, STR_TERMINATE) + 1;
 512
 513         if (service_buf == NULL || password == NULL || dev == NULL) {
 514                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 515                 END_PROFILE(SMBtcon);
 516                 return;
 517         }
 518         p = strrchr_m(service_buf,'\\');
 519         if (p) {
 520                 service = p+1;
 521         } else {
 522                 service = service_buf;
 523         }
 524
 525         password_blob = data_blob(password, pwlen+1);
 526
 527         conn = make_connection(service,password_blob,dev,req->vuid,&nt_status);
 528         req->conn = conn;
 529
 530         data_blob_clear_free(&password_blob);
 531
 532         if (!conn) {
 533                 reply_nterror(req, nt_status);
 534                 END_PROFILE(SMBtcon);
 535                 return;
 536         }
 537
 538         reply_outbuf(req, 2, 0);
 539         SSVAL(req->outbuf,smb_vwv0,max_recv);
 540         SSVAL(req->outbuf,smb_vwv1,conn->cnum);
 541         SSVAL(req->outbuf,smb_tid,conn->cnum);
 542
 543         DEBUG(3,("tcon service=%s cnum=%d\n",
 544                  service, conn->cnum));
 545
 546         END_PROFILE(SMBtcon);
 547         return;
 548 }
 549
 550 /****************************************************************************
 551  Reply to a tcon and X.
 552  conn POINTER CAN BE NULL HERE !
 553 ****************************************************************************/
 554
 555 void reply_tcon_and_X(struct smb_request *req)
 556 {
 557         connection_struct *conn = req->conn;
 558         char *service = NULL;
 559         DATA_BLOB password;
 560         TALLOC_CTX *ctx = talloc_tos();
 561         /* what the cleint thinks the device is */
 562         char *client_devicetype = NULL;
 563         /* what the server tells the client the share represents */
 564         const char *server_devicetype;
 565         NTSTATUS nt_status;
 566         int passlen;
 567         char *path = NULL;
 568         char *p, *q;
 569         uint16 tcon_flags;
 570
 571         START_PROFILE(SMBtconX);
 572
 573         if (req->wct < 4) {
 574                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 575                 END_PROFILE(SMBtconX);
 576                 return;
 577         }
 578
 579         passlen = SVAL(req->inbuf,smb_vwv3);
 580         tcon_flags = SVAL(req->inbuf,smb_vwv2);
 581
 582         /* we might have to close an old one */
 583         if ((tcon_flags & 0x1) && conn) {
 584                 close_cnum(conn,req->vuid);
 585                 req->conn = NULL;
 586                 conn = NULL;
 587         }
 588
 589         if ((passlen > MAX_PASS_LEN) || (passlen >= smb_buflen(req->inbuf))) {
 590                 reply_doserror(req, ERRDOS, ERRbuftoosmall);
 591                 END_PROFILE(SMBtconX);
 592                 return;
 593         }
 594
 595         if (global_encrypted_passwords_negotiated) {
 596                 password = data_blob_talloc(talloc_tos(), smb_buf(req->inbuf),
 597                                             passlen);
 598                 if (lp_security() == SEC_SHARE) {
 599                         /*
 600                          * Security = share always has a pad byte
 601                          * after the password.
 602                          */
 603                         p = smb_buf(req->inbuf) + passlen + 1;
 604                 } else {
 605                         p = smb_buf(req->inbuf) + passlen;
 606                 }
 607         } else {
 608                 password = data_blob_talloc(talloc_tos(), smb_buf(req->inbuf),
 609                                             passlen+1);
 610                 /* Ensure correct termination */
 611                 password.data[passlen]=0;
 612                 p = smb_buf(req->inbuf) + passlen + 1;
 613         }
 614
 615         p += srvstr_pull_buf_talloc(ctx, req->inbuf, req->flags2, &path, p,
 616                              STR_TERMINATE);
 617
 618         if (path == NULL) {
 619                 data_blob_clear_free(&password);
 620                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 621                 END_PROFILE(SMBtconX);
 622                 return;
 623         }
 624
 625         /*
 626          * the service name can be either: \\server\share
 627          * or share directly like on the DELL PowerVault 705
 628          */
 629         if (*path=='\\') {
 630                 q = strchr_m(path+2,'\\');
 631                 if (!q) {
 632                         data_blob_clear_free(&password);
 633                         reply_doserror(req, ERRDOS, ERRnosuchshare);
 634                         END_PROFILE(SMBtconX);
 635                         return;
 636                 }
 637                 service = q+1;
 638         } else {
 639                 service = path;
 640         }
 641
 642         p += srvstr_pull_talloc(ctx, req->inbuf, req->flags2,
 643                                 &client_devicetype, p,
 644                                 MIN(6,smb_bufrem(req->inbuf, p)), STR_ASCII);
 645
 646         if (client_devicetype == NULL) {
 647                 data_blob_clear_free(&password);
 648                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 649                 END_PROFILE(SMBtconX);
 650                 return;
 651         }
 652
 653         DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
 654
 655         conn = make_connection(service, password, client_devicetype,
 656                                req->vuid, &nt_status);
 657         req->conn =conn;
 658
 659         data_blob_clear_free(&password);
 660
 661         if (!conn) {
 662                 reply_nterror(req, nt_status);
 663                 END_PROFILE(SMBtconX);
 664                 return;
 665         }
 666
 667         if ( IS_IPC(conn) )
 668                 server_devicetype = "IPC";
 669         else if ( IS_PRINT(conn) )
 670                 server_devicetype = "LPT1:";
 671         else
 672                 server_devicetype = "A:";
 673
 674         if (Protocol < PROTOCOL_NT1) {
 675                 reply_outbuf(req, 2, 0);
 676                 if (message_push_string(&req->outbuf, server_devicetype,
 677                                         STR_TERMINATE|STR_ASCII) == -1) {
 678                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 679                         END_PROFILE(SMBtconX);
 680                         return;
 681                 }
 682         } else {
 683                 /* NT sets the fstype of IPC$ to the null string */
 684                 const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
 685
 686                 if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
 687                         /* Return permissions. */
 688                         uint32 perm1 = 0;
 689                         uint32 perm2 = 0;
 690
 691                         reply_outbuf(req, 7, 0);
 692
 693                         if (IS_IPC(conn)) {
 694                                 perm1 = FILE_ALL_ACCESS;
 695                                 perm2 = FILE_ALL_ACCESS;
 696                         } else {
 697                                 perm1 = CAN_WRITE(conn) ?
 698                                                 SHARE_ALL_ACCESS :
 699                                                 SHARE_READ_ONLY;
 700                         }
 701
 702                         SIVAL(req->outbuf, smb_vwv3, perm1);
 703                         SIVAL(req->outbuf, smb_vwv5, perm2);
 704                 } else {
 705                         reply_outbuf(req, 3, 0);
 706                 }
 707
 708                 if ((message_push_string(&req->outbuf, server_devicetype,
 709                                          STR_TERMINATE|STR_ASCII) == -1)
 710                     || (message_push_string(&req->outbuf, fstype,
 711                                             STR_TERMINATE) == -1)) {
 712                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 713                         END_PROFILE(SMBtconX);
 714                         return;
 715                 }
 716
 717                 /* what does setting this bit do? It is set by NT4 and
 718                    may affect the ability to autorun mounted cdroms */
 719                 SSVAL(req->outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS|
 720                       (lp_csc_policy(SNUM(conn)) << 2));
 721
 722                 init_dfsroot(conn, req->inbuf, req->outbuf);
 723         }
 724
 725
 726         DEBUG(3,("tconX service=%s \n",
 727                  service));
 728
 729         /* set the incoming and outgoing tid to the just created one */
 730         SSVAL(req->inbuf,smb_tid,conn->cnum);
 731         SSVAL(req->outbuf,smb_tid,conn->cnum);
 732
 733         END_PROFILE(SMBtconX);
 734
 735         chain_reply(req);
 736         return;
 737 }
 738
 739 /****************************************************************************
 740  Reply to an unknown type.
 741 ****************************************************************************/
 742
 743 void reply_unknown_new(struct smb_request *req, uint8 type)
 744 {
 745         DEBUG(0, ("unknown command type (%s): type=%d (0x%X)\n",
 746                   smb_fn_name(type), type, type));
 747         reply_doserror(req, ERRSRV, ERRunknownsmb);
 748         return;
 749 }
 750
 751 /****************************************************************************
 752  Reply to an ioctl.
 753  conn POINTER CAN BE NULL HERE !
 754 ****************************************************************************/
 755
 756 void reply_ioctl(struct smb_request *req)
 757 {
 758         connection_struct *conn = req->conn;
 759         uint16 device;
 760         uint16 function;
 761         uint32 ioctl_code;
 762         int replysize;
 763         char *p;
 764
 765         START_PROFILE(SMBioctl);
 766
 767         if (req->wct < 3) {
 768                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 769                 END_PROFILE(SMBioctl);
 770                 return;
 771         }
 772
 773         device     = SVAL(req->inbuf,smb_vwv1);
 774         function   = SVAL(req->inbuf,smb_vwv2);
 775         ioctl_code = (device << 16) + function;
 776
 777         DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
 778
 779         switch (ioctl_code) {
 780             case IOCTL_QUERY_JOB_INFO:
 781                     replysize = 32;
 782                     break;
 783             default:
 784                     reply_doserror(req, ERRSRV, ERRnosupport);
 785                     END_PROFILE(SMBioctl);
 786                     return;
 787         }
 788
 789         reply_outbuf(req, 8, replysize+1);
 790         SSVAL(req->outbuf,smb_vwv1,replysize); /* Total data bytes returned */
 791         SSVAL(req->outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
 792         SSVAL(req->outbuf,smb_vwv6,52);        /* Offset to data */
 793         p = smb_buf(req->outbuf);
 794         memset(p, '\0', replysize+1); /* valgrind-safe. */
 795         p += 1;          /* Allow for alignment */
 796
 797         switch (ioctl_code) {
 798                 case IOCTL_QUERY_JOB_INFO:
 799                 {
 800                         files_struct *fsp = file_fsp(SVAL(req->inbuf,
 801                                                           smb_vwv0));
 802                         if (!fsp) {
 803                                 reply_doserror(req, ERRDOS, ERRbadfid);
 804                                 END_PROFILE(SMBioctl);
 805                                 return;
 806                         }
 807                         SSVAL(p,0,fsp->rap_print_jobid);             /* Job number */
 808                         srvstr_push((char *)req->outbuf, req->flags2, p+2,
 809                                     global_myname(), 15,
 810                                     STR_TERMINATE|STR_ASCII);
 811                         if (conn) {
 812                                 srvstr_push((char *)req->outbuf, req->flags2,
 813                                             p+18, lp_servicename(SNUM(conn)),
 814                                             13, STR_TERMINATE|STR_ASCII);
 815                         } else {
 816                                 memset(p+18, 0, 13);
 817                         }
 818                         break;
 819                 }
 820         }
 821
 822         END_PROFILE(SMBioctl);
 823         return;
 824 }
 825
 826 /****************************************************************************
 827  Strange checkpath NTSTATUS mapping.
 828 ****************************************************************************/
 829
 830 static NTSTATUS map_checkpath_error(const char *inbuf, NTSTATUS status)
 831 {
 832         /* Strange DOS error code semantics only for checkpath... */
 833         if (!(SVAL(inbuf,smb_flg2) & FLAGS2_32_BIT_ERROR_CODES)) {
 834                 if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
 835                         /* We need to map to ERRbadpath */
 836                         return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 837                 }
 838         }
 839         return status;
 840 }
 841
 842 /****************************************************************************
 843  Reply to a checkpath.
 844 ****************************************************************************/
 845
 846 void reply_checkpath(struct smb_request *req)
 847 {
 848         connection_struct *conn = req->conn;
 849         char *name = NULL;
 850         SMB_STRUCT_STAT sbuf;
 851         NTSTATUS status;
 852         TALLOC_CTX *ctx = talloc_tos();
 853
 854         START_PROFILE(SMBcheckpath);
 855
 856         srvstr_get_path(ctx,(char *)req->inbuf, req->flags2, &name,
 857                         smb_buf(req->inbuf) + 1, 0,
 858                         STR_TERMINATE, &status);
 859         if (!NT_STATUS_IS_OK(status)) {
 860                 status = map_checkpath_error((char *)req->inbuf, status);
 861                 reply_nterror(req, status);
 862                 END_PROFILE(SMBcheckpath);
 863                 return;
 864         }
 865
 866         status = resolve_dfspath(ctx, conn,
 867                         req->flags2 & FLAGS2_DFS_PATHNAMES,
 868                         name,
 869                         &name);
 870         if (!NT_STATUS_IS_OK(status)) {
 871                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 872                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 873                                         ERRSRV, ERRbadpath);
 874                         END_PROFILE(SMBcheckpath);
 875                         return;
 876                 }
 877                 goto path_err;
 878         }
 879
 880         DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(req->inbuf,smb_vwv0)));
 881
 882         status = unix_convert(ctx, conn, name, False, &name, NULL, &sbuf);
 883         if (!NT_STATUS_IS_OK(status)) {
 884                 goto path_err;
 885         }
 886
 887         status = check_name(conn, name);
 888         if (!NT_STATUS_IS_OK(status)) {
 889                 DEBUG(3,("reply_checkpath: check_name of %s failed (%s)\n",name,nt_errstr(status)));
 890                 goto path_err;
 891         }
 892
 893         if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,name,&sbuf) != 0)) {
 894                 DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",name,strerror(errno)));
 895                 status = map_nt_error_from_unix(errno);
 896                 goto path_err;
 897         }
 898
 899         if (!S_ISDIR(sbuf.st_mode)) {
 900                 reply_botherror(req, NT_STATUS_NOT_A_DIRECTORY,
 901                                 ERRDOS, ERRbadpath);
 902                 END_PROFILE(SMBcheckpath);
 903                 return;
 904         }
 905
 906         reply_outbuf(req, 0, 0);
 907
 908         END_PROFILE(SMBcheckpath);
 909         return;
 910
 911   path_err:
 912
 913         END_PROFILE(SMBcheckpath);
 914
 915         /* We special case this - as when a Windows machine
 916                 is parsing a path is steps through the components
 917                 one at a time - if a component fails it expects
 918                 ERRbadpath, not ERRbadfile.
 919         */
 920         status = map_checkpath_error((char *)req->inbuf, status);
 921         if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 922                 /*
 923                  * Windows returns different error codes if
 924                  * the parent directory is valid but not the
 925                  * last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
 926                  * for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
 927                  * if the path is invalid.
 928                  */
 929                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 930                                 ERRDOS, ERRbadpath);
 931                 return;
 932         }
 933
 934         reply_nterror(req, status);
 935 }
 936
 937 /****************************************************************************
 938  Reply to a getatr.
 939 ****************************************************************************/
 940
 941 void reply_getatr(struct smb_request *req)
 942 {
 943         connection_struct *conn = req->conn;
 944         char *fname = NULL;
 945         SMB_STRUCT_STAT sbuf;
 946         int mode=0;
 947         SMB_OFF_T size=0;
 948         time_t mtime=0;
 949         char *p;
 950         NTSTATUS status;
 951         TALLOC_CTX *ctx = talloc_tos();
 952
 953         START_PROFILE(SMBgetatr);
 954
 955         p = smb_buf(req->inbuf) + 1;
 956         p += srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname, p,
 957                              0, STR_TERMINATE, &status);
 958         if (!NT_STATUS_IS_OK(status)) {
 959                 reply_nterror(req, status);
 960                 END_PROFILE(SMBgetatr);
 961                 return;
 962         }
 963
 964         status = resolve_dfspath(ctx, conn,
 965                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
 966                                 fname,
 967                                 &fname);
 968         if (!NT_STATUS_IS_OK(status)) {
 969                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 970                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 971                                         ERRSRV, ERRbadpath);
 972                         END_PROFILE(SMBgetatr);
 973                         return;
 974                 }
 975                 reply_nterror(req, status);
 976                 END_PROFILE(SMBgetatr);
 977                 return;
 978         }
 979
 980         /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
 981                 under WfWg - weird! */
 982         if (*fname == '\0') {
 983                 mode = aHIDDEN | aDIR;
 984                 if (!CAN_WRITE(conn)) {
 985                         mode |= aRONLY;
 986                 }
 987                 size = 0;
 988                 mtime = 0;
 989         } else {
 990                 status = unix_convert(ctx, conn, fname, False, &fname, NULL,&sbuf);
 991                 if (!NT_STATUS_IS_OK(status)) {
 992                         reply_nterror(req, status);
 993                         END_PROFILE(SMBgetatr);
 994                         return;
 995                 }
 996                 status = check_name(conn, fname);
 997                 if (!NT_STATUS_IS_OK(status)) {
 998                         DEBUG(3,("reply_getatr: check_name of %s failed (%s)\n",fname,nt_errstr(status)));
 999                         reply_nterror(req, status);
1000                         END_PROFILE(SMBgetatr);
1001                         return;
1002                 }
1003                 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,fname,&sbuf) != 0)) {
1004                         DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",fname,strerror(errno)));
1005                         reply_unixerror(req, ERRDOS,ERRbadfile);
1006                         END_PROFILE(SMBgetatr);
1007                         return;
1008                 }
1009
1010                 mode = dos_mode(conn,fname,&sbuf);
1011                 size = sbuf.st_size;
1012                 mtime = sbuf.st_mtime;
1013                 if (mode & aDIR) {
1014                         size = 0;
1015                 }
1016         }
1017
1018         reply_outbuf(req, 10, 0);
1019
1020         SSVAL(req->outbuf,smb_vwv0,mode);
1021         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1022                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime & ~1);
1023         } else {
1024                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime);
1025         }
1026         SIVAL(req->outbuf,smb_vwv3,(uint32)size);
1027
1028         if (Protocol >= PROTOCOL_NT1) {
1029                 SSVAL(req->outbuf, smb_flg2,
1030                       SVAL(req->outbuf, smb_flg2) | FLAGS2_IS_LONG_NAME);
1031         }
1032
1033         DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n", fname, mode, (unsigned int)size ) );
1034
1035         END_PROFILE(SMBgetatr);
1036         return;
1037 }
1038
1039 /****************************************************************************
1040  Reply to a setatr.
1041 ****************************************************************************/
1042
1043 void reply_setatr(struct smb_request *req)
1044 {
1045         struct timespec ts[2];
1046         connection_struct *conn = req->conn;
1047         char *fname = NULL;
1048         int mode;
1049         time_t mtime;
1050         SMB_STRUCT_STAT sbuf;
1051         char *p;
1052         NTSTATUS status;
1053         TALLOC_CTX *ctx = talloc_tos();
1054
1055         START_PROFILE(SMBsetatr);
1056
1057         ZERO_STRUCT(ts);
1058
1059         if (req->wct < 2) {
1060                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1061                 return;
1062         }
1063
1064         p = smb_buf(req->inbuf) + 1;
1065         p += srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname, p,
1066                                 0, STR_TERMINATE, &status);
1067         if (!NT_STATUS_IS_OK(status)) {
1068                 reply_nterror(req, status);
1069                 END_PROFILE(SMBsetatr);
1070                 return;
1071         }
1072
1073         status = resolve_dfspath(ctx, conn,
1074                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
1075                                 fname,
1076                                 &fname);
1077         if (!NT_STATUS_IS_OK(status)) {
1078                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1079                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1080                                         ERRSRV, ERRbadpath);
1081                         END_PROFILE(SMBsetatr);
1082                         return;
1083                 }
1084                 reply_nterror(req, status);
1085                 END_PROFILE(SMBsetatr);
1086                 return;
1087         }
1088
1089         status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf);
1090         if (!NT_STATUS_IS_OK(status)) {
1091                 reply_nterror(req, status);
1092                 END_PROFILE(SMBsetatr);
1093                 return;
1094         }
1095
1096         status = check_name(conn, fname);
1097         if (!NT_STATUS_IS_OK(status)) {
1098                 reply_nterror(req, status);
1099                 END_PROFILE(SMBsetatr);
1100                 return;
1101         }
1102
1103         if (fname[0] == '.' && fname[1] == '\0') {
1104                 /*
1105                  * Not sure here is the right place to catch this
1106                  * condition. Might be moved to somewhere else later -- vl
1107                  */
1108                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1109                 END_PROFILE(SMBsetatr);
1110                 return;
1111         }
1112
1113         mode = SVAL(req->inbuf,smb_vwv0);
1114         mtime = srv_make_unix_date3(req->inbuf+smb_vwv1);
1115
1116         ts[1] = convert_time_t_to_timespec(mtime);
1117         status = smb_set_file_time(conn, NULL, fname,
1118                                    &sbuf, ts, true);
1119         if (!NT_STATUS_IS_OK(status)) {
1120                 reply_unixerror(req, ERRDOS, ERRnoaccess);
1121                 END_PROFILE(SMBsetatr);
1122                 return;
1123         }
1124
1125         if (mode != FILE_ATTRIBUTE_NORMAL) {
1126                 if (VALID_STAT_OF_DIR(sbuf))
1127                         mode |= aDIR;
1128                 else
1129                         mode &= ~aDIR;
1130
1131                 if (file_set_dosmode(conn,fname,mode,&sbuf,NULL,false) != 0) {
1132                         reply_unixerror(req, ERRDOS, ERRnoaccess);
1133                         END_PROFILE(SMBsetatr);
1134                         return;
1135                 }
1136         }
1137
1138         reply_outbuf(req, 0, 0);
1139
1140         DEBUG( 3, ( "setatr name=%s mode=%d\n", fname, mode ) );
1141
1142         END_PROFILE(SMBsetatr);
1143         return;
1144 }
1145
1146 /****************************************************************************
1147  Reply to a dskattr.
1148 ****************************************************************************/
1149
1150 void reply_dskattr(struct smb_request *req)
1151 {
1152         connection_struct *conn = req->conn;
1153         SMB_BIG_UINT dfree,dsize,bsize;
1154         START_PROFILE(SMBdskattr);
1155
1156         if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (SMB_BIG_UINT)-1) {
1157                 reply_unixerror(req, ERRHRD, ERRgeneral);
1158                 END_PROFILE(SMBdskattr);
1159                 return;
1160         }
1161
1162         reply_outbuf(req, 5, 0);
1163
1164         if (Protocol <= PROTOCOL_LANMAN2) {
1165                 double total_space, free_space;
1166                 /* we need to scale this to a number that DOS6 can handle. We
1167                    use floating point so we can handle large drives on systems
1168                    that don't have 64 bit integers
1169
1170                    we end up displaying a maximum of 2G to DOS systems
1171                 */
1172                 total_space = dsize * (double)bsize;
1173                 free_space = dfree * (double)bsize;
1174
1175                 dsize = (SMB_BIG_UINT)((total_space+63*512) / (64*512));
1176                 dfree = (SMB_BIG_UINT)((free_space+63*512) / (64*512));
1177
1178                 if (dsize > 0xFFFF) dsize = 0xFFFF;
1179                 if (dfree > 0xFFFF) dfree = 0xFFFF;
1180
1181                 SSVAL(req->outbuf,smb_vwv0,dsize);
1182                 SSVAL(req->outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
1183                 SSVAL(req->outbuf,smb_vwv2,512); /* and this must be 512 */
1184                 SSVAL(req->outbuf,smb_vwv3,dfree);
1185         } else {
1186                 SSVAL(req->outbuf,smb_vwv0,dsize);
1187                 SSVAL(req->outbuf,smb_vwv1,bsize/512);
1188                 SSVAL(req->outbuf,smb_vwv2,512);
1189                 SSVAL(req->outbuf,smb_vwv3,dfree);
1190         }
1191
1192         DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
1193
1194         END_PROFILE(SMBdskattr);
1195         return;
1196 }
1197
1198 /****************************************************************************
1199  Reply to a search.
1200  Can be called from SMBsearch, SMBffirst or SMBfunique.
1201 ****************************************************************************/
1202
1203 void reply_search(struct smb_request *req)
1204 {
1205         connection_struct *conn = req->conn;
1206         char *mask = NULL;
1207         char *directory = NULL;
1208         char *fname = NULL;
1209         SMB_OFF_T size;
1210         uint32 mode;
1211         time_t date;
1212         uint32 dirtype;
1213         unsigned int numentries = 0;
1214         unsigned int maxentries = 0;
1215         bool finished = False;
1216         char *p;
1217         int status_len;
1218         char *path = NULL;
1219         char status[21];
1220         int dptr_num= -1;
1221         bool check_descend = False;
1222         bool expect_close = False;
1223         NTSTATUS nt_status;
1224         bool mask_contains_wcard = False;
1225         bool allow_long_path_components = (req->flags2 & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
1226         TALLOC_CTX *ctx = talloc_tos();
1227         bool ask_sharemode = lp_parm_bool(SNUM(conn), "smbd", "search ask sharemode", true);
1228
1229         START_PROFILE(SMBsearch);
1230
1231         if (req->wct < 2) {
1232                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1233                 END_PROFILE(SMBsearch);
1234                 return;
1235         }
1236
1237         if (lp_posix_pathnames()) {
1238                 reply_unknown_new(req, CVAL(req->inbuf, smb_com));
1239                 END_PROFILE(SMBsearch);
1240                 return;
1241         }
1242
1243         /* If we were called as SMBffirst then we must expect close. */
1244         if(CVAL(req->inbuf,smb_com) == SMBffirst) {
1245                 expect_close = True;
1246         }
1247
1248         reply_outbuf(req, 1, 3);
1249         maxentries = SVAL(req->inbuf,smb_vwv0);
1250         dirtype = SVAL(req->inbuf,smb_vwv1);
1251         p = smb_buf(req->inbuf) + 1;
1252         p += srvstr_get_path_wcard(ctx,
1253                                 (char *)req->inbuf,
1254                                 req->flags2,
1255                                 &path,
1256                                 p,
1257                                 0,
1258                                 STR_TERMINATE,
1259                                 &nt_status,
1260                                 &mask_contains_wcard);
1261         if (!NT_STATUS_IS_OK(nt_status)) {
1262                 reply_nterror(req, nt_status);
1263                 END_PROFILE(SMBsearch);
1264                 return;
1265         }
1266
1267         nt_status = resolve_dfspath_wcard(ctx, conn,
1268                                           req->flags2 & FLAGS2_DFS_PATHNAMES,
1269                                           path,
1270                                           &path,
1271                                           &mask_contains_wcard);
1272         if (!NT_STATUS_IS_OK(nt_status)) {
1273                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1274                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1275                                         ERRSRV, ERRbadpath);
1276                         END_PROFILE(SMBsearch);
1277                         return;
1278                 }
1279                 reply_nterror(req, nt_status);
1280                 END_PROFILE(SMBsearch);
1281                 return;
1282         }
1283
1284         p++;
1285         status_len = SVAL(p, 0);
1286         p += 2;
1287
1288         /* dirtype &= ~aDIR; */
1289
1290         if (status_len == 0) {
1291                 SMB_STRUCT_STAT sbuf;
1292
1293                 nt_status = unix_convert(ctx, conn, path, True,
1294                                 &directory, NULL, &sbuf);
1295                 if (!NT_STATUS_IS_OK(nt_status)) {
1296                         reply_nterror(req, nt_status);
1297                         END_PROFILE(SMBsearch);
1298                         return;
1299                 }
1300
1301                 nt_status = check_name(conn, directory);
1302                 if (!NT_STATUS_IS_OK(nt_status)) {
1303                         reply_nterror(req, nt_status);
1304                         END_PROFILE(SMBsearch);
1305                         return;
1306                 }
1307
1308                 p = strrchr_m(directory,'/');
1309                 if (!p) {
1310                         mask = directory;
1311                         directory = talloc_strdup(ctx,".");
1312                         if (!directory) {
1313                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1314                                 END_PROFILE(SMBsearch);
1315                                 return;
1316                         }
1317                 } else {
1318                         *p = 0;
1319                         mask = p+1;
1320                 }
1321
1322                 if (*directory == '\0') {
1323                         directory = talloc_strdup(ctx,".");
1324                         if (!directory) {
1325                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
1326                                 END_PROFILE(SMBsearch);
1327                                 return;
1328                         }
1329                 }
1330                 memset((char *)status,'\0',21);
1331                 SCVAL(status,0,(dirtype & 0x1F));
1332
1333                 nt_status = dptr_create(conn,
1334                                         directory,
1335                                         True,
1336                                         expect_close,
1337                                         req->smbpid,
1338                                         mask,
1339                                         mask_contains_wcard,
1340                                         dirtype,
1341                                         &conn->dirptr);
1342                 if (!NT_STATUS_IS_OK(nt_status)) {
1343                         reply_nterror(req, nt_status);
1344                         END_PROFILE(SMBsearch);
1345                         return;
1346                 }
1347                 dptr_num = dptr_dnum(conn->dirptr);
1348         } else {
1349                 int status_dirtype;
1350
1351                 memcpy(status,p,21);
1352                 status_dirtype = CVAL(status,0) & 0x1F;
1353                 if (status_dirtype != (dirtype & 0x1F)) {
1354                         dirtype = status_dirtype;
1355                 }
1356
1357                 conn->dirptr = dptr_fetch(status+12,&dptr_num);
1358                 if (!conn->dirptr) {
1359                         goto SearchEmpty;
1360                 }
1361                 string_set(&conn->dirpath,dptr_path(dptr_num));
1362                 mask = dptr_wcard(dptr_num);
1363                 if (!mask) {
1364                         goto SearchEmpty;
1365                 }
1366                 /*
1367                  * For a 'continue' search we have no string. So
1368                  * check from the initial saved string.
1369                  */
1370                 mask_contains_wcard = ms_has_wild(mask);
1371                 dirtype = dptr_attr(dptr_num);
1372         }
1373
1374         DEBUG(4,("dptr_num is %d\n",dptr_num));
1375
1376         if ((dirtype&0x1F) == aVOLID) {
1377                 char buf[DIR_STRUCT_SIZE];
1378                 memcpy(buf,status,21);
1379                 if (!make_dir_struct(ctx,buf,"???????????",volume_label(SNUM(conn)),
1380                                 0,aVOLID,0,!allow_long_path_components)) {
1381                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1382                         END_PROFILE(SMBsearch);
1383                         return;
1384                 }
1385                 dptr_fill(buf+12,dptr_num);
1386                 if (dptr_zero(buf+12) && (status_len==0)) {
1387                         numentries = 1;
1388                 } else {
1389                         numentries = 0;
1390                 }
1391                 if (message_push_blob(&req->outbuf,
1392                                       data_blob_const(buf, sizeof(buf)))
1393                     == -1) {
1394                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1395                         END_PROFILE(SMBsearch);
1396                         return;
1397                 }
1398         } else {
1399                 unsigned int i;
1400                 maxentries = MIN(
1401                         maxentries,
1402                         ((BUFFER_SIZE -
1403                           ((uint8 *)smb_buf(req->outbuf) + 3 - req->outbuf))
1404                          /DIR_STRUCT_SIZE));
1405
1406                 DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1407                         conn->dirpath,lp_dontdescend(SNUM(conn))));
1408                 if (in_list(conn->dirpath, lp_dontdescend(SNUM(conn)),True)) {
1409                         check_descend = True;
1410                 }
1411
1412                 for (i=numentries;(i<maxentries) && !finished;i++) {
1413                         finished = !get_dir_entry(ctx,
1414                                                   conn,
1415                                                   mask,
1416                                                   dirtype,
1417                                                   &fname,
1418                                                   &size,
1419                                                   &mode,
1420                                                   &date,
1421                                                   check_descend,
1422                                                   ask_sharemode);
1423                         if (!finished) {
1424                                 char buf[DIR_STRUCT_SIZE];
1425                                 memcpy(buf,status,21);
1426                                 if (!make_dir_struct(ctx,
1427                                                 buf,
1428                                                 mask,
1429                                                 fname,
1430                                                 size,
1431                                                 mode,
1432                                                 date,
1433                                                 !allow_long_path_components)) {
1434                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1435                                         END_PROFILE(SMBsearch);
1436                                         return;
1437                                 }
1438                                 if (!dptr_fill(buf+12,dptr_num)) {
1439                                         break;
1440                                 }
1441                                 if (message_push_blob(&req->outbuf,
1442                                                       data_blob_const(buf, sizeof(buf)))
1443                                     == -1) {
1444                                         reply_nterror(req, NT_STATUS_NO_MEMORY);
1445                                         END_PROFILE(SMBsearch);
1446                                         return;
1447                                 }
1448                                 numentries++;
1449                         }
1450                 }
1451         }
1452
1453   SearchEmpty:
1454
1455         /* If we were called as SMBffirst with smb_search_id == NULL
1456                 and no entries were found then return error and close dirptr
1457                 (X/Open spec) */
1458
1459         if (numentries == 0) {
1460                 dptr_close(&dptr_num);
1461         } else if(expect_close && status_len == 0) {
1462                 /* Close the dptr - we know it's gone */
1463                 dptr_close(&dptr_num);
1464         }
1465
1466         /* If we were called as SMBfunique, then we can close the dirptr now ! */
1467         if(dptr_num >= 0 && CVAL(req->inbuf,smb_com) == SMBfunique) {
1468                 dptr_close(&dptr_num);
1469         }
1470
1471         if ((numentries == 0) && !mask_contains_wcard) {
1472                 reply_botherror(req, STATUS_NO_MORE_FILES, ERRDOS, ERRnofiles);
1473                 END_PROFILE(SMBsearch);
1474                 return;
1475         }
1476
1477         SSVAL(req->outbuf,smb_vwv0,numentries);
1478         SSVAL(req->outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1479         SCVAL(smb_buf(req->outbuf),0,5);
1480         SSVAL(smb_buf(req->outbuf),1,numentries*DIR_STRUCT_SIZE);
1481
1482         /* The replies here are never long name. */
1483         SSVAL(req->outbuf, smb_flg2,
1484               SVAL(req->outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1485         if (!allow_long_path_components) {
1486                 SSVAL(req->outbuf, smb_flg2,
1487                       SVAL(req->outbuf, smb_flg2)
1488                       & (~FLAGS2_LONG_PATH_COMPONENTS));
1489         }
1490
1491         /* This SMB *always* returns ASCII names. Remove the unicode bit in flags2. */
1492         SSVAL(req->outbuf, smb_flg2,
1493               (SVAL(req->outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1494
1495         if (!directory) {
1496                 directory = dptr_path(dptr_num);
1497         }
1498
1499         DEBUG(4,("%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1500                 smb_fn_name(CVAL(req->inbuf,smb_com)),
1501                 mask,
1502                 directory ? directory : "./",
1503                 dirtype,
1504                 numentries,
1505                 maxentries ));
1506
1507         END_PROFILE(SMBsearch);
1508         return;
1509 }
1510
1511 /****************************************************************************
1512  Reply to a fclose (stop directory search).
1513 ****************************************************************************/
1514
1515 void reply_fclose(struct smb_request *req)
1516 {
1517         int status_len;
1518         char status[21];
1519         int dptr_num= -2;
1520         char *p;
1521         char *path = NULL;
1522         NTSTATUS err;
1523         bool path_contains_wcard = False;
1524         TALLOC_CTX *ctx = talloc_tos();
1525
1526         START_PROFILE(SMBfclose);
1527
1528         if (lp_posix_pathnames()) {
1529                 reply_unknown_new(req, CVAL(req->inbuf, smb_com));
1530                 END_PROFILE(SMBfclose);
1531                 return;
1532         }
1533
1534         p = smb_buf(req->inbuf) + 1;
1535         p += srvstr_get_path_wcard(ctx,
1536                                 (char *)req->inbuf,
1537                                 req->flags2,
1538                                 &path,
1539                                 p,
1540                                 0,
1541                                 STR_TERMINATE,
1542                                 &err,
1543                                 &path_contains_wcard);
1544         if (!NT_STATUS_IS_OK(err)) {
1545                 reply_nterror(req, err);
1546                 END_PROFILE(SMBfclose);
1547                 return;
1548         }
1549         p++;
1550         status_len = SVAL(p,0);
1551         p += 2;
1552
1553         if (status_len == 0) {
1554                 reply_doserror(req, ERRSRV, ERRsrverror);
1555                 END_PROFILE(SMBfclose);
1556                 return;
1557         }
1558
1559         memcpy(status,p,21);
1560
1561         if(dptr_fetch(status+12,&dptr_num)) {
1562                 /*  Close the dptr - we know it's gone */
1563                 dptr_close(&dptr_num);
1564         }
1565
1566         reply_outbuf(req, 1, 0);
1567         SSVAL(req->outbuf,smb_vwv0,0);
1568
1569         DEBUG(3,("search close\n"));
1570
1571         END_PROFILE(SMBfclose);
1572         return;
1573 }
1574
1575 /****************************************************************************
1576  Reply to an open.
1577 ****************************************************************************/
1578
1579 void reply_open(struct smb_request *req)
1580 {
1581         connection_struct *conn = req->conn;
1582         char *fname = NULL;
1583         uint32 fattr=0;
1584         SMB_OFF_T size = 0;
1585         time_t mtime=0;
1586         int info;
1587         SMB_STRUCT_STAT sbuf;
1588         files_struct *fsp;
1589         int oplock_request;
1590         int deny_mode;
1591         uint32 dos_attr;
1592         uint32 access_mask;
1593         uint32 share_mode;
1594         uint32 create_disposition;
1595         uint32 create_options = 0;
1596         NTSTATUS status;
1597         TALLOC_CTX *ctx = talloc_tos();
1598
1599         START_PROFILE(SMBopen);
1600
1601         if (req->wct < 2) {
1602                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1603                 END_PROFILE(SMBopen);
1604                 return;
1605         }
1606
1607         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1608         deny_mode = SVAL(req->inbuf,smb_vwv0);
1609         dos_attr = SVAL(req->inbuf,smb_vwv1);
1610
1611         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
1612                         smb_buf(req->inbuf)+1, 0,
1613                         STR_TERMINATE, &status);
1614         if (!NT_STATUS_IS_OK(status)) {
1615                 reply_nterror(req, status);
1616                 END_PROFILE(SMBopen);
1617                 return;
1618         }
1619
1620         if (!map_open_params_to_ntcreate(
1621                     fname, deny_mode, OPENX_FILE_EXISTS_OPEN, &access_mask,
1622                     &share_mode, &create_disposition, &create_options)) {
1623                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1624                 END_PROFILE(SMBopen);
1625                 return;
1626         }
1627
1628         status = create_file(conn,                      /* conn */
1629                              req,                       /* req */
1630                              0,                         /* root_dir_fid */
1631                              fname,                     /* fname */
1632                              access_mask,               /* access_mask */
1633                              share_mode,                /* share_access */
1634                              create_disposition,        /* create_disposition*/
1635                              create_options,            /* create_options */
1636                              dos_attr,                  /* file_attributes */
1637                              oplock_request,            /* oplock_request */
1638                              0,                         /* allocation_size */
1639                              NULL,                      /* sd */
1640                              NULL,                      /* ea_list */
1641                              &fsp,                      /* result */
1642                              &info,                     /* pinfo */
1643                              &sbuf);                    /* psbuf */
1644
1645         if (!NT_STATUS_IS_OK(status)) {
1646                 if (open_was_deferred(req->mid)) {
1647                         /* We have re-scheduled this call. */
1648                         END_PROFILE(SMBopen);
1649                         return;
1650                 }
1651                 reply_openerror(req, status);
1652                 END_PROFILE(SMBopen);
1653                 return;
1654         }
1655
1656         size = sbuf.st_size;
1657         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1658         mtime = sbuf.st_mtime;
1659
1660         if (fattr & aDIR) {
1661                 DEBUG(3,("attempt to open a directory %s\n",fsp->fsp_name));
1662                 close_file(fsp,ERROR_CLOSE);
1663                 reply_doserror(req, ERRDOS,ERRnoaccess);
1664                 END_PROFILE(SMBopen);
1665                 return;
1666         }
1667
1668         reply_outbuf(req, 7, 0);
1669         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1670         SSVAL(req->outbuf,smb_vwv1,fattr);
1671         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1672                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime & ~1);
1673         } else {
1674                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime);
1675         }
1676         SIVAL(req->outbuf,smb_vwv4,(uint32)size);
1677         SSVAL(req->outbuf,smb_vwv6,deny_mode);
1678
1679         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1680                 SCVAL(req->outbuf,smb_flg,
1681                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1682         }
1683
1684         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1685                 SCVAL(req->outbuf,smb_flg,
1686                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1687         }
1688         END_PROFILE(SMBopen);
1689         return;
1690 }
1691
1692 /****************************************************************************
1693  Reply to an open and X.
1694 ****************************************************************************/
1695
1696 void reply_open_and_X(struct smb_request *req)
1697 {
1698         connection_struct *conn = req->conn;
1699         char *fname = NULL;
1700         uint16 open_flags;
1701         int deny_mode;
1702         uint32 smb_attr;
1703         /* Breakout the oplock request bits so we can set the
1704                 reply bits separately. */
1705         int ex_oplock_request;
1706         int core_oplock_request;
1707         int oplock_request;
1708 #if 0
1709         int smb_sattr = SVAL(req->inbuf,smb_vwv4);
1710         uint32 smb_time = make_unix_date3(req->inbuf+smb_vwv6);
1711 #endif
1712         int smb_ofun;
1713         uint32 fattr=0;
1714         int mtime=0;
1715         SMB_STRUCT_STAT sbuf;
1716         int smb_action = 0;
1717         files_struct *fsp;
1718         NTSTATUS status;
1719         SMB_BIG_UINT allocation_size;
1720         ssize_t retval = -1;
1721         uint32 access_mask;
1722         uint32 share_mode;
1723         uint32 create_disposition;
1724         uint32 create_options = 0;
1725         TALLOC_CTX *ctx = talloc_tos();
1726
1727         START_PROFILE(SMBopenX);
1728
1729         if (req->wct < 15) {
1730                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1731                 END_PROFILE(SMBopenX);
1732                 return;
1733         }
1734
1735         open_flags = SVAL(req->inbuf,smb_vwv2);
1736         deny_mode = SVAL(req->inbuf,smb_vwv3);
1737         smb_attr = SVAL(req->inbuf,smb_vwv5);
1738         ex_oplock_request = EXTENDED_OPLOCK_REQUEST(req->inbuf);
1739         core_oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1740         oplock_request = ex_oplock_request | core_oplock_request;
1741         smb_ofun = SVAL(req->inbuf,smb_vwv8);
1742         allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv9);
1743
1744         /* If it's an IPC, pass off the pipe handler. */
1745         if (IS_IPC(conn)) {
1746                 if (lp_nt_pipe_support()) {
1747                         reply_open_pipe_and_X(conn, req);
1748                 } else {
1749                         reply_doserror(req, ERRSRV, ERRaccess);
1750                 }
1751                 END_PROFILE(SMBopenX);
1752                 return;
1753         }
1754
1755         /* XXXX we need to handle passed times, sattr and flags */
1756         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
1757                         smb_buf(req->inbuf), 0, STR_TERMINATE,
1758                         &status);
1759         if (!NT_STATUS_IS_OK(status)) {
1760                 reply_nterror(req, status);
1761                 END_PROFILE(SMBopenX);
1762                 return;
1763         }
1764
1765         if (!map_open_params_to_ntcreate(
1766                     fname, deny_mode, smb_ofun, &access_mask,
1767                     &share_mode, &create_disposition, &create_options)) {
1768                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1769                 END_PROFILE(SMBopenX);
1770                 return;
1771         }
1772
1773         status = create_file(conn,                      /* conn */
1774                              req,                       /* req */
1775                              0,                         /* root_dir_fid */
1776                              fname,                     /* fname */
1777                              access_mask,               /* access_mask */
1778                              share_mode,                /* share_access */
1779                              create_disposition,        /* create_disposition*/
1780                              create_options,            /* create_options */
1781                              smb_attr,                  /* file_attributes */
1782                              oplock_request,            /* oplock_request */
1783                              0,                         /* allocation_size */
1784                              NULL,                      /* sd */
1785                              NULL,                      /* ea_list */
1786                              &fsp,                      /* result */
1787                              &smb_action,               /* pinfo */
1788                              &sbuf);                    /* psbuf */
1789
1790         if (!NT_STATUS_IS_OK(status)) {
1791                 END_PROFILE(SMBopenX);
1792                 if (open_was_deferred(req->mid)) {
1793                         /* We have re-scheduled this call. */
1794                         return;
1795                 }
1796                 reply_openerror(req, status);
1797                 return;
1798         }
1799
1800         /* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
1801            if the file is truncated or created. */
1802         if (((smb_action == FILE_WAS_CREATED) || (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
1803                 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1804                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1805                         close_file(fsp,ERROR_CLOSE);
1806                         reply_nterror(req, NT_STATUS_DISK_FULL);
1807                         END_PROFILE(SMBopenX);
1808                         return;
1809                 }
1810                 retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
1811                 if (retval < 0) {
1812                         close_file(fsp,ERROR_CLOSE);
1813                         reply_nterror(req, NT_STATUS_DISK_FULL);
1814                         END_PROFILE(SMBopenX);
1815                         return;
1816                 }
1817                 sbuf.st_size = get_allocation_size(conn,fsp,&sbuf);
1818         }
1819
1820         fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
1821         mtime = sbuf.st_mtime;
1822         if (fattr & aDIR) {
1823                 close_file(fsp,ERROR_CLOSE);
1824                 reply_doserror(req, ERRDOS, ERRnoaccess);
1825                 END_PROFILE(SMBopenX);
1826                 return;
1827         }
1828
1829         /* If the caller set the extended oplock request bit
1830                 and we granted one (by whatever means) - set the
1831                 correct bit for extended oplock reply.
1832         */
1833
1834         if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1835                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1836         }
1837
1838         if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1839                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1840         }
1841
1842         /* If the caller set the core oplock request bit
1843                 and we granted one (by whatever means) - set the
1844                 correct bit for core oplock reply.
1845         */
1846
1847         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1848                 reply_outbuf(req, 19, 0);
1849         } else {
1850                 reply_outbuf(req, 15, 0);
1851         }
1852
1853         if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1854                 SCVAL(req->outbuf, smb_flg,
1855                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1856         }
1857
1858         if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1859                 SCVAL(req->outbuf, smb_flg,
1860                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1861         }
1862
1863         SSVAL(req->outbuf,smb_vwv2,fsp->fnum);
1864         SSVAL(req->outbuf,smb_vwv3,fattr);
1865         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1866                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime & ~1);
1867         } else {
1868                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
1869         }
1870         SIVAL(req->outbuf,smb_vwv6,(uint32)sbuf.st_size);
1871         SSVAL(req->outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
1872         SSVAL(req->outbuf,smb_vwv11,smb_action);
1873
1874         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1875                 SIVAL(req->outbuf, smb_vwv15, STD_RIGHT_ALL_ACCESS);
1876         }
1877
1878         END_PROFILE(SMBopenX);
1879         chain_reply(req);
1880         return;
1881 }
1882
1883 /****************************************************************************
1884  Reply to a SMBulogoffX.
1885 ****************************************************************************/
1886
1887 void reply_ulogoffX(struct smb_request *req)
1888 {
1889         user_struct *vuser;
1890
1891         START_PROFILE(SMBulogoffX);
1892
1893         vuser = get_valid_user_struct(req->vuid);
1894
1895         if(vuser == NULL) {
1896                 DEBUG(3,("ulogoff, vuser id %d does not map to user.\n",
1897                          req->vuid));
1898         }
1899
1900         /* in user level security we are supposed to close any files
1901                 open by this user */
1902         if ((vuser != NULL) && (lp_security() != SEC_SHARE)) {
1903                 file_close_user(req->vuid);
1904         }
1905
1906         invalidate_vuid(req->vuid);
1907
1908         reply_outbuf(req, 2, 0);
1909
1910         DEBUG( 3, ( "ulogoffX vuid=%d\n", req->vuid ) );
1911
1912         END_PROFILE(SMBulogoffX);
1913         chain_reply(req);
1914 }
1915
1916 /****************************************************************************
1917  Reply to a mknew or a create.
1918 ****************************************************************************/
1919
1920 void reply_mknew(struct smb_request *req)
1921 {
1922         connection_struct *conn = req->conn;
1923         char *fname = NULL;
1924         int com;
1925         uint32 fattr = 0;
1926         struct timespec ts[2];
1927         files_struct *fsp;
1928         int oplock_request = 0;
1929         SMB_STRUCT_STAT sbuf;
1930         NTSTATUS status;
1931         uint32 access_mask = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
1932         uint32 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1933         uint32 create_disposition;
1934         uint32 create_options = 0;
1935         TALLOC_CTX *ctx = talloc_tos();
1936
1937         START_PROFILE(SMBcreate);
1938
1939         if (req->wct < 3) {
1940                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1941                 END_PROFILE(SMBcreate);
1942                 return;
1943         }
1944
1945         fattr = SVAL(req->inbuf,smb_vwv0);
1946         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1947         com = SVAL(req->inbuf,smb_com);
1948
1949         ts[1] =convert_time_t_to_timespec(
1950                         srv_make_unix_date3(req->inbuf + smb_vwv1));
1951                         /* mtime. */
1952
1953         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
1954                         smb_buf(req->inbuf) + 1, 0,
1955                         STR_TERMINATE, &status);
1956         if (!NT_STATUS_IS_OK(status)) {
1957                 reply_nterror(req, status);
1958                 END_PROFILE(SMBcreate);
1959                 return;
1960         }
1961
1962         if (fattr & aVOLID) {
1963                 DEBUG(0,("Attempt to create file (%s) with volid set - "
1964                         "please report this\n", fname));
1965         }
1966
1967         if(com == SMBmknew) {
1968                 /* We should fail if file exists. */
1969                 create_disposition = FILE_CREATE;
1970         } else {
1971                 /* Create if file doesn't exist, truncate if it does. */
1972                 create_disposition = FILE_OVERWRITE_IF;
1973         }
1974
1975         status = create_file(conn,                      /* conn */
1976                              req,                       /* req */
1977                              0,                         /* root_dir_fid */
1978                              fname,                     /* fname */
1979                              access_mask,               /* access_mask */
1980                              share_mode,                /* share_access */
1981                              create_disposition,        /* create_disposition*/
1982                              create_options,            /* create_options */
1983                              fattr,                     /* file_attributes */
1984                              oplock_request,            /* oplock_request */
1985                              0,                         /* allocation_size */
1986                              NULL,                      /* sd */
1987                              NULL,                      /* ea_list */
1988                              &fsp,                      /* result */
1989                              NULL,                      /* pinfo */
1990                              &sbuf);                    /* psbuf */
1991
1992         if (!NT_STATUS_IS_OK(status)) {
1993                 END_PROFILE(SMBcreate);
1994                 if (open_was_deferred(req->mid)) {
1995                         /* We have re-scheduled this call. */
1996                         return;
1997                 }
1998                 reply_openerror(req, status);
1999                 return;
2000         }
2001
2002         ts[0] = get_atimespec(&sbuf); /* atime. */
2003         status = smb_set_file_time(conn, fsp, fsp->fsp_name, &sbuf, ts, true);
2004         if (!NT_STATUS_IS_OK(status)) {
2005                 END_PROFILE(SMBcreate);
2006                 reply_openerror(req, status);
2007                 return;
2008         }
2009
2010         reply_outbuf(req, 1, 0);
2011         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2012
2013         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2014                 SCVAL(req->outbuf,smb_flg,
2015                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2016         }
2017
2018         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2019                 SCVAL(req->outbuf,smb_flg,
2020                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2021         }
2022
2023         DEBUG( 2, ( "reply_mknew: file %s\n", fsp->fsp_name ) );
2024         DEBUG( 3, ( "reply_mknew %s fd=%d dmode=0x%x\n",
2025                     fsp->fsp_name, fsp->fh->fd, (unsigned int)fattr ) );
2026
2027         END_PROFILE(SMBcreate);
2028         return;
2029 }
2030
2031 /****************************************************************************
2032  Reply to a create temporary file.
2033 ****************************************************************************/
2034
2035 void reply_ctemp(struct smb_request *req)
2036 {
2037         connection_struct *conn = req->conn;
2038         char *fname = NULL;
2039         uint32 fattr;
2040         files_struct *fsp;
2041         int oplock_request;
2042         int tmpfd;
2043         SMB_STRUCT_STAT sbuf;
2044         char *s;
2045         NTSTATUS status;
2046         TALLOC_CTX *ctx = talloc_tos();
2047
2048         START_PROFILE(SMBctemp);
2049
2050         if (req->wct < 3) {
2051                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2052                 END_PROFILE(SMBctemp);
2053                 return;
2054         }
2055
2056         fattr = SVAL(req->inbuf,smb_vwv0);
2057         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
2058
2059         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname,
2060                         smb_buf(req->inbuf)+1, 0, STR_TERMINATE,
2061                         &status);
2062         if (!NT_STATUS_IS_OK(status)) {
2063                 reply_nterror(req, status);
2064                 END_PROFILE(SMBctemp);
2065                 return;
2066         }
2067         if (*fname) {
2068                 fname = talloc_asprintf(ctx,
2069                                 "%s/TMXXXXXX",
2070                                 fname);
2071         } else {
2072                 fname = talloc_strdup(ctx, "TMXXXXXX");
2073         }
2074
2075         if (!fname) {
2076                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2077                 END_PROFILE(SMBctemp);
2078                 return;
2079         }
2080
2081         status = resolve_dfspath(ctx, conn,
2082                                 req->flags2 & FLAGS2_DFS_PATHNAMES,
2083                                 fname,
2084                                 &fname);
2085         if (!NT_STATUS_IS_OK(status)) {
2086                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2087                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2088                                         ERRSRV, ERRbadpath);
2089                         END_PROFILE(SMBctemp);
2090                         return;
2091                 }
2092                 reply_nterror(req, status);
2093                 END_PROFILE(SMBctemp);
2094                 return;
2095         }
2096
2097         status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf);
2098         if (!NT_STATUS_IS_OK(status)) {
2099                 reply_nterror(req, status);
2100                 END_PROFILE(SMBctemp);
2101                 return;
2102         }
2103
2104         status = check_name(conn, CONST_DISCARD(char *,fname));
2105         if (!NT_STATUS_IS_OK(status)) {
2106                 reply_nterror(req, status);
2107                 END_PROFILE(SMBctemp);
2108                 return;
2109         }
2110
2111         tmpfd = smb_mkstemp(fname);
2112         if (tmpfd == -1) {
2113                 reply_unixerror(req, ERRDOS, ERRnoaccess);
2114                 END_PROFILE(SMBctemp);
2115                 return;
2116         }
2117
2118         SMB_VFS_STAT(conn,fname,&sbuf);
2119
2120         /* We should fail if file does not exist. */
2121         status = open_file_ntcreate(conn, req, fname, &sbuf,
2122                                 FILE_GENERIC_READ | FILE_GENERIC_WRITE,
2123                                 FILE_SHARE_READ|FILE_SHARE_WRITE,
2124                                 FILE_OPEN,
2125                                 0,
2126                                 fattr,
2127                                 oplock_request,
2128                                 NULL, &fsp);
2129
2130         /* close fd from smb_mkstemp() */
2131         close(tmpfd);
2132
2133         if (!NT_STATUS_IS_OK(status)) {
2134                 if (open_was_deferred(req->mid)) {
2135                         /* We have re-scheduled this call. */
2136                         END_PROFILE(SMBctemp);
2137                         return;
2138                 }
2139                 reply_openerror(req, status);
2140                 END_PROFILE(SMBctemp);
2141                 return;
2142         }
2143
2144         reply_outbuf(req, 1, 0);
2145         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2146
2147         /* the returned filename is relative to the directory */
2148         s = strrchr_m(fsp->fsp_name, '/');
2149         if (!s) {
2150                 s = fsp->fsp_name;
2151         } else {
2152                 s++;
2153         }
2154
2155 #if 0
2156         /* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
2157            thing in the byte section. JRA */
2158         SSVALS(p, 0, -1); /* what is this? not in spec */
2159 #endif
2160         if (message_push_string(&req->outbuf, s, STR_ASCII|STR_TERMINATE)
2161             == -1) {
2162                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2163                 END_PROFILE(SMBctemp);
2164                 return;
2165         }
2166
2167         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2168                 SCVAL(req->outbuf, smb_flg,
2169                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2170         }
2171
2172         if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2173                 SCVAL(req->outbuf, smb_flg,
2174                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2175         }
2176
2177         DEBUG( 2, ( "reply_ctemp: created temp file %s\n", fsp->fsp_name ) );
2178         DEBUG( 3, ( "reply_ctemp %s fd=%d umode=0%o\n", fsp->fsp_name,
2179                     fsp->fh->fd, (unsigned int)sbuf.st_mode ) );
2180
2181         END_PROFILE(SMBctemp);
2182         return;
2183 }
2184
2185 /*******************************************************************
2186  Check if a user is allowed to rename a file.
2187 ********************************************************************/
2188
2189 static NTSTATUS can_rename(connection_struct *conn, files_struct *fsp,
2190                            uint16 dirtype, SMB_STRUCT_STAT *pst)
2191 {
2192         uint32 fmode;
2193
2194         if (!CAN_WRITE(conn)) {
2195                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2196         }
2197
2198         fmode = dos_mode(conn, fsp->fsp_name, pst);
2199         if ((fmode & ~dirtype) & (aHIDDEN | aSYSTEM)) {
2200                 return NT_STATUS_NO_SUCH_FILE;
2201         }
2202
2203         if (S_ISDIR(pst->st_mode)) {
2204                 return NT_STATUS_OK;
2205         }
2206
2207         if (fsp->access_mask & (DELETE_ACCESS|FILE_WRITE_ATTRIBUTES)) {
2208                 return NT_STATUS_OK;
2209         }
2210
2211         return NT_STATUS_ACCESS_DENIED;
2212 }
2213
2214 /*******************************************************************
2215  * unlink a file with all relevant access checks
2216  *******************************************************************/
2217
2218 static NTSTATUS do_unlink(connection_struct *conn,
2219                         struct smb_request *req,
2220                         const char *fname,
2221                         uint32 dirtype)
2222 {
2223         SMB_STRUCT_STAT sbuf;
2224         uint32 fattr;
2225         files_struct *fsp;
2226         uint32 dirtype_orig = dirtype;
2227         NTSTATUS status;
2228
2229         DEBUG(10,("do_unlink: %s, dirtype = %d\n", fname, dirtype ));
2230
2231         if (!CAN_WRITE(conn)) {
2232                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2233         }
2234
2235         if (SMB_VFS_LSTAT(conn,fname,&sbuf) != 0) {
2236                 return map_nt_error_from_unix(errno);
2237         }
2238
2239         fattr = dos_mode(conn,fname,&sbuf);
2240
2241         if (dirtype & FILE_ATTRIBUTE_NORMAL) {
2242                 dirtype = aDIR|aARCH|aRONLY;
2243         }
2244
2245         dirtype &= (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM);
2246         if (!dirtype) {
2247                 return NT_STATUS_NO_SUCH_FILE;
2248         }
2249
2250         if (!dir_check_ftype(conn, fattr, dirtype)) {
2251                 if (fattr & aDIR) {
2252                         return NT_STATUS_FILE_IS_A_DIRECTORY;
2253                 }
2254                 return NT_STATUS_NO_SUCH_FILE;
2255         }
2256
2257         if (dirtype_orig & 0x8000) {
2258                 /* These will never be set for POSIX. */
2259                 return NT_STATUS_NO_SUCH_FILE;
2260         }
2261
2262 #if 0
2263         if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
2264                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2265         }
2266
2267         if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
2268                 return NT_STATUS_NO_SUCH_FILE;
2269         }
2270
2271         if (dirtype & 0xFF00) {
2272                 /* These will never be set for POSIX. */
2273                 return NT_STATUS_NO_SUCH_FILE;
2274         }
2275
2276         dirtype &= 0xFF;
2277         if (!dirtype) {
2278                 return NT_STATUS_NO_SUCH_FILE;
2279         }
2280
2281         /* Can't delete a directory. */
2282         if (fattr & aDIR) {
2283                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2284         }
2285 #endif
2286
2287 #if 0 /* JRATEST */
2288         else if (dirtype & aDIR) /* Asked for a directory and it isn't. */
2289                 return NT_STATUS_OBJECT_NAME_INVALID;
2290 #endif /* JRATEST */
2291
2292         /* Fix for bug #3035 from SATOH Fumiyasu <fumiyas@miraclelinux.com>
2293
2294           On a Windows share, a file with read-only dosmode can be opened with
2295           DELETE_ACCESS. But on a Samba share (delete readonly = no), it
2296           fails with NT_STATUS_CANNOT_DELETE error.
2297
2298           This semantic causes a problem that a user can not
2299           rename a file with read-only dosmode on a Samba share
2300           from a Windows command prompt (i.e. cmd.exe, but can rename
2301           from Windows Explorer).
2302         */
2303
2304         if (!lp_delete_readonly(SNUM(conn))) {
2305                 if (fattr & aRONLY) {
2306                         return NT_STATUS_CANNOT_DELETE;
2307                 }
2308         }
2309
2310         /* On open checks the open itself will check the share mode, so
2311            don't do it here as we'll get it wrong. */
2312
2313         status = create_file_unixpath
2314                 (conn,                  /* conn */
2315                  req,                   /* req */
2316                  fname,                 /* fname */
2317                  DELETE_ACCESS,         /* access_mask */
2318                  FILE_SHARE_NONE,       /* share_access */
2319                  FILE_OPEN,             /* create_disposition*/
2320                  FILE_NON_DIRECTORY_FILE, /* create_options */
2321                  FILE_ATTRIBUTE_NORMAL, /* file_attributes */
2322                  0,                     /* oplock_request */
2323                  0,                     /* allocation_size */
2324                  NULL,                  /* sd */
2325                  NULL,                  /* ea_list */
2326                  &fsp,                  /* result */
2327                  NULL,                  /* pinfo */
2328                  &sbuf);                /* psbuf */
2329
2330         if (!NT_STATUS_IS_OK(status)) {
2331                 DEBUG(10, ("open_file_ntcreate failed: %s\n",
2332                            nt_errstr(status)));
2333                 return status;
2334         }
2335
2336         /* The set is across all open files on this dev/inode pair. */
2337         if (!set_delete_on_close(fsp, True, &current_user.ut)) {
2338                 close_file(fsp, NORMAL_CLOSE);
2339                 return NT_STATUS_ACCESS_DENIED;
2340         }
2341
2342         return close_file(fsp,NORMAL_CLOSE);
2343 }
2344
2345 /****************************************************************************
2346  The guts of the unlink command, split out so it may be called by the NT SMB
2347  code.
2348 ****************************************************************************/
2349
2350 NTSTATUS unlink_internals(connection_struct *conn, struct smb_request *req,
2351                           uint32 dirtype, const char *name_in, bool has_wild)
2352 {
2353         const char *directory = NULL;
2354         char *mask = NULL;
2355         char *name = NULL;
2356         char *p = NULL;
2357         int count=0;
2358         NTSTATUS status = NT_STATUS_OK;
2359         SMB_STRUCT_STAT sbuf;
2360         TALLOC_CTX *ctx = talloc_tos();
2361
2362         status = unix_convert(ctx, conn, name_in, has_wild, &name, NULL, &sbuf);
2363         if (!NT_STATUS_IS_OK(status)) {
2364                 return status;
2365         }
2366
2367         p = strrchr_m(name,'/');
2368         if (!p) {
2369                 directory = talloc_strdup(ctx, ".");
2370                 if (!directory) {
2371                         return NT_STATUS_NO_MEMORY;
2372                 }
2373                 mask = name;
2374         } else {
2375                 *p = 0;
2376                 directory = name;
2377                 mask = p+1;
2378         }
2379
2380         /*
2381          * We should only check the mangled cache
2382          * here if unix_convert failed. This means
2383          * that the path in 'mask' doesn't exist
2384          * on the file system and so we need to look
2385          * for a possible mangle. This patch from
2386          * Tine Smukavec <valentin.smukavec@hermes.si>.
2387          */
2388
2389         if (!VALID_STAT(sbuf) && mangle_is_mangled(mask,conn->params)) {
2390                 char *new_mask = NULL;
2391                 mangle_lookup_name_from_8_3(ctx,
2392                                 mask,
2393                                 &new_mask,
2394                                 conn->params );
2395                 if (new_mask) {
2396                         mask = new_mask;
2397                 }
2398         }
2399
2400         if (!has_wild) {
2401                 directory = talloc_asprintf(ctx,
2402                                 "%s/%s",
2403                                 directory,
2404                                 mask);
2405                 if (!directory) {
2406                         return NT_STATUS_NO_MEMORY;
2407                 }
2408                 if (dirtype == 0) {
2409                         dirtype = FILE_ATTRIBUTE_NORMAL;
2410                 }
2411
2412                 status = check_name(conn, directory);
2413                 if (!NT_STATUS_IS_OK(status)) {
2414                         return status;
2415                 }
2416
2417                 status = do_unlink(conn, req, directory, dirtype);
2418                 if (!NT_STATUS_IS_OK(status)) {
2419                         return status;
2420                 }
2421
2422                 count++;
2423         } else {
2424                 struct smb_Dir *dir_hnd = NULL;
2425                 long offset = 0;
2426                 const char *dname;
2427
2428                 if ((dirtype & SAMBA_ATTRIBUTES_MASK) == aDIR) {
2429                         return NT_STATUS_OBJECT_NAME_INVALID;
2430                 }
2431
2432                 if (strequal(mask,"????????.???")) {
2433                         mask[0] = '*';
2434                         mask[1] = '\0';
2435                 }
2436
2437                 status = check_name(conn, directory);
2438                 if (!NT_STATUS_IS_OK(status)) {
2439                         return status;
2440                 }
2441
2442                 dir_hnd = OpenDir(talloc_tos(), conn, directory, mask,
2443                                   dirtype);
2444                 if (dir_hnd == NULL) {
2445                         return map_nt_error_from_unix(errno);
2446                 }
2447
2448                 /* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2449                    the pattern matches against the long name, otherwise the short name
2450                    We don't implement this yet XXXX
2451                 */
2452
2453                 status = NT_STATUS_NO_SUCH_FILE;
2454
2455                 while ((dname = ReadDirName(dir_hnd, &offset))) {
2456                         SMB_STRUCT_STAT st;
2457                         char *fname = NULL;
2458
2459                         if (!is_visible_file(conn, directory, dname, &st, True)) {
2460                                 continue;
2461                         }
2462
2463                         /* Quick check for "." and ".." */
2464                         if (ISDOT(dname) || ISDOTDOT(dname)) {
2465                                 continue;
2466                         }
2467
2468                         if(!mask_match(dname, mask, conn->case_sensitive)) {
2469                                 continue;
2470                         }
2471
2472                         fname = talloc_asprintf(ctx, "%s/%s",
2473                                         directory,
2474                                         dname);
2475                         if (!fname) {
2476                                 return NT_STATUS_NO_MEMORY;
2477                         }
2478
2479                         status = check_name(conn, fname);
2480                         if (!NT_STATUS_IS_OK(status)) {
2481                                 TALLOC_FREE(dir_hnd);
2482                                 return status;
2483                         }
2484
2485                         status = do_unlink(conn, req, fname, dirtype);
2486                         if (!NT_STATUS_IS_OK(status)) {
2487                                 TALLOC_FREE(fname);
2488                                 continue;
2489                         }
2490
2491                         count++;
2492                         DEBUG(3,("unlink_internals: successful unlink [%s]\n",
2493                                  fname));
2494
2495                         TALLOC_FREE(fname);
2496                 }
2497                 TALLOC_FREE(dir_hnd);
2498         }
2499
2500         if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
2501                 status = map_nt_error_from_unix(errno);
2502         }
2503
2504         return status;
2505 }
2506
2507 /****************************************************************************
2508  Reply to a unlink
2509 ****************************************************************************/
2510
2511 void reply_unlink(struct smb_request *req)
2512 {
2513         connection_struct *conn = req->conn;
2514         char *name = NULL;
2515         uint32 dirtype;
2516         NTSTATUS status;
2517         bool path_contains_wcard = False;
2518         TALLOC_CTX *ctx = talloc_tos();
2519
2520         START_PROFILE(SMBunlink);
2521
2522         if (req->wct < 1) {
2523                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2524                 END_PROFILE(SMBunlink);
2525                 return;
2526         }
2527
2528         dirtype = SVAL(req->inbuf,smb_vwv0);
2529
2530         srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &name,
2531                               smb_buf(req->inbuf) + 1, 0,
2532                               STR_TERMINATE, &status, &path_contains_wcard);
2533         if (!NT_STATUS_IS_OK(status)) {
2534                 reply_nterror(req, status);
2535                 END_PROFILE(SMBunlink);
2536                 return;
2537         }
2538
2539         status = resolve_dfspath_wcard(ctx, conn,
2540                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
2541                                        name,
2542                                        &name,
2543                                        &path_contains_wcard);
2544         if (!NT_STATUS_IS_OK(status)) {
2545                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2546                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2547                                         ERRSRV, ERRbadpath);
2548                         END_PROFILE(SMBunlink);
2549                         return;
2550                 }
2551                 reply_nterror(req, status);
2552                 END_PROFILE(SMBunlink);
2553                 return;
2554         }
2555
2556         DEBUG(3,("reply_unlink : %s\n",name));
2557
2558         status = unlink_internals(conn, req, dirtype, name,
2559                                   path_contains_wcard);
2560         if (!NT_STATUS_IS_OK(status)) {
2561                 if (open_was_deferred(req->mid)) {
2562                         /* We have re-scheduled this call. */
2563                         END_PROFILE(SMBunlink);
2564                         return;
2565                 }
2566                 reply_nterror(req, status);
2567                 END_PROFILE(SMBunlink);
2568                 return;
2569         }
2570
2571         reply_outbuf(req, 0, 0);
2572         END_PROFILE(SMBunlink);
2573
2574         return;
2575 }
2576
2577 /****************************************************************************
2578  Fail for readbraw.
2579 ****************************************************************************/
2580
2581 static void fail_readraw(void)
2582 {
2583         const char *errstr = talloc_asprintf(talloc_tos(),
2584                         "FAIL ! reply_readbraw: socket write fail (%s)",
2585                         strerror(errno));
2586         if (!errstr) {
2587                 errstr = "";
2588         }
2589         exit_server_cleanly(errstr);
2590 }
2591
2592 /****************************************************************************
2593  Fake (read/write) sendfile. Returns -1 on read or write fail.
2594 ****************************************************************************/
2595
2596 static ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos,
2597                              size_t nread)
2598 {
2599         size_t bufsize;
2600         size_t tosend = nread;
2601         char *buf;
2602
2603         if (nread == 0) {
2604                 return 0;
2605         }
2606
2607         bufsize = MIN(nread, 65536);
2608
2609         if (!(buf = SMB_MALLOC_ARRAY(char, bufsize))) {
2610                 return -1;
2611         }
2612
2613         while (tosend > 0) {
2614                 ssize_t ret;
2615                 size_t cur_read;
2616
2617                 if (tosend > bufsize) {
2618                         cur_read = bufsize;
2619                 } else {
2620                         cur_read = tosend;
2621                 }
2622                 ret = read_file(fsp,buf,startpos,cur_read);
2623                 if (ret == -1) {
2624                         SAFE_FREE(buf);
2625                         return -1;
2626                 }
2627
2628                 /* If we had a short read, fill with zeros. */
2629                 if (ret < cur_read) {
2630                         memset(buf, '\0', cur_read - ret);
2631                 }
2632
2633                 if (write_data(smbd_server_fd(),buf,cur_read) != cur_read) {
2634                         SAFE_FREE(buf);
2635                         return -1;
2636                 }
2637                 tosend -= cur_read;
2638                 startpos += cur_read;
2639         }
2640
2641         SAFE_FREE(buf);
2642         return (ssize_t)nread;
2643 }
2644
2645 /****************************************************************************
2646  Return a readbraw error (4 bytes of zero).
2647 ****************************************************************************/
2648
2649 static void reply_readbraw_error(void)
2650 {
2651         char header[4];
2652         SIVAL(header,0,0);
2653         if (write_data(smbd_server_fd(),header,4) != 4) {
2654                 fail_readraw();
2655         }
2656 }
2657
2658 /****************************************************************************
2659  Use sendfile in readbraw.
2660 ****************************************************************************/
2661
2662 void send_file_readbraw(connection_struct *conn,
2663                         files_struct *fsp,
2664                         SMB_OFF_T startpos,
2665                         size_t nread,
2666                         ssize_t mincount)
2667 {
2668         char *outbuf = NULL;
2669         ssize_t ret=0;
2670
2671 #if defined(WITH_SENDFILE)
2672         /*
2673          * We can only use sendfile on a non-chained packet
2674          * but we can use on a non-oplocked file. tridge proved this
2675          * on a train in Germany :-). JRA.
2676          * reply_readbraw has already checked the length.
2677          */
2678
2679         if ( (chain_size == 0) && (nread > 0) && (fsp->base_fsp == NULL) &&
2680             (fsp->wcp == NULL) && lp_use_sendfile(SNUM(conn)) ) {
2681                 char header[4];
2682                 DATA_BLOB header_blob;
2683
2684                 _smb_setlen(header,nread);
2685                 header_blob = data_blob_const(header, 4);
2686
2687                 if (SMB_VFS_SENDFILE(smbd_server_fd(), fsp,
2688                                 &header_blob, startpos, nread) == -1) {
2689                         /* Returning ENOSYS means no data at all was sent.
2690                          * Do this as a normal read. */
2691                         if (errno == ENOSYS) {
2692                                 goto normal_readbraw;
2693                         }
2694
2695                         /*
2696                          * Special hack for broken Linux with no working sendfile. If we
2697                          * return EINTR we sent the header but not the rest of the data.
2698                          * Fake this up by doing read/write calls.
2699                          */
2700                         if (errno == EINTR) {
2701                                 /* Ensure we don't do this again. */
2702                                 set_use_sendfile(SNUM(conn), False);
2703                                 DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
2704
2705                                 if (fake_sendfile(fsp, startpos, nread) == -1) {
2706                                         DEBUG(0,("send_file_readbraw: fake_sendfile failed for file %s (%s).\n",
2707                                                 fsp->fsp_name, strerror(errno) ));
2708                                         exit_server_cleanly("send_file_readbraw fake_sendfile failed");
2709                                 }
2710                                 return;
2711                         }
2712
2713                         DEBUG(0,("send_file_readbraw: sendfile failed for file %s (%s). Terminating\n",
2714                                 fsp->fsp_name, strerror(errno) ));
2715                         exit_server_cleanly("send_file_readbraw sendfile failed");
2716                 }
2717
2718                 return;
2719         }
2720 #endif
2721
2722 normal_readbraw:
2723
2724         outbuf = TALLOC_ARRAY(NULL, char, nread+4);
2725         if (!outbuf) {
2726                 DEBUG(0,("send_file_readbraw: TALLOC_ARRAY failed for size %u.\n",
2727                         (unsigned)(nread+4)));
2728                 reply_readbraw_error();
2729                 return;
2730         }
2731
2732         if (nread > 0) {
2733                 ret = read_file(fsp,outbuf+4,startpos,nread);
2734 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2735                 if (ret < mincount)
2736                         ret = 0;
2737 #else
2738                 if (ret < nread)
2739                         ret = 0;
2740 #endif
2741         }
2742
2743         _smb_setlen(outbuf,ret);
2744         if (write_data(smbd_server_fd(),outbuf,4+ret) != 4+ret)
2745                 fail_readraw();
2746
2747         TALLOC_FREE(outbuf);
2748 }
2749
2750 /****************************************************************************
2751  Reply to a readbraw (core+ protocol).
2752 ****************************************************************************/
2753
2754 void reply_readbraw(struct smb_request *req)
2755 {
2756         connection_struct *conn = req->conn;
2757         ssize_t maxcount,mincount;
2758         size_t nread = 0;
2759         SMB_OFF_T startpos;
2760         files_struct *fsp;
2761         SMB_STRUCT_STAT st;
2762         SMB_OFF_T size = 0;
2763
2764         START_PROFILE(SMBreadbraw);
2765
2766         if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
2767                 exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
2768                         "raw reads/writes are disallowed.");
2769         }
2770
2771         if (req->wct < 8) {
2772                 reply_readbraw_error();
2773                 END_PROFILE(SMBreadbraw);
2774                 return;
2775         }
2776
2777         /*
2778          * Special check if an oplock break has been issued
2779          * and the readraw request croses on the wire, we must
2780          * return a zero length response here.
2781          */
2782
2783         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
2784
2785         /*
2786          * We have to do a check_fsp by hand here, as
2787          * we must always return 4 zero bytes on error,
2788          * not a NTSTATUS.
2789          */
2790
2791         if (!fsp || !conn || conn != fsp->conn ||
2792                         current_user.vuid != fsp->vuid ||
2793                         fsp->is_directory || fsp->fh->fd == -1) {
2794                 /*
2795                  * fsp could be NULL here so use the value from the packet. JRA.
2796                  */
2797                 DEBUG(3,("reply_readbraw: fnum %d not valid "
2798                         "- cache prime?\n",
2799                         (int)SVAL(req->inbuf,smb_vwv0)));
2800                 reply_readbraw_error();
2801                 END_PROFILE(SMBreadbraw);
2802                 return;
2803         }
2804
2805         /* Do a "by hand" version of CHECK_READ. */
2806         if (!(fsp->can_read ||
2807                         ((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) &&
2808                                 (fsp->access_mask & FILE_EXECUTE)))) {
2809                 DEBUG(3,("reply_readbraw: fnum %d not readable.\n",
2810                                 (int)SVAL(req->inbuf,smb_vwv0)));
2811                 reply_readbraw_error();
2812                 END_PROFILE(SMBreadbraw);
2813                 return;
2814         }
2815
2816         flush_write_cache(fsp, READRAW_FLUSH);
2817
2818         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv1);
2819         if(req->wct == 10) {
2820                 /*
2821                  * This is a large offset (64 bit) read.
2822                  */
2823 #ifdef LARGE_SMB_OFF_T
2824
2825                 startpos |= (((SMB_OFF_T)IVAL(req->inbuf,smb_vwv8)) << 32);
2826
2827 #else /* !LARGE_SMB_OFF_T */
2828
2829                 /*
2830                  * Ensure we haven't been sent a >32 bit offset.
2831                  */
2832
2833                 if(IVAL(req->inbuf,smb_vwv8) != 0) {
2834                         DEBUG(0,("reply_readbraw: large offset "
2835                                 "(%x << 32) used and we don't support "
2836                                 "64 bit offsets.\n",
2837                         (unsigned int)IVAL(req->inbuf,smb_vwv8) ));
2838                         reply_readbraw_error();
2839                         END_PROFILE(SMBreadbraw);
2840                         return;
2841                 }
2842
2843 #endif /* LARGE_SMB_OFF_T */
2844
2845                 if(startpos < 0) {
2846                         DEBUG(0,("reply_readbraw: negative 64 bit "
2847                                 "readraw offset (%.0f) !\n",
2848                                 (double)startpos ));
2849                         reply_readbraw_error();
2850                         END_PROFILE(SMBreadbraw);
2851                         return;
2852                 }
2853         }
2854
2855         maxcount = (SVAL(req->inbuf,smb_vwv3) & 0xFFFF);
2856         mincount = (SVAL(req->inbuf,smb_vwv4) & 0xFFFF);
2857
2858         /* ensure we don't overrun the packet size */
2859         maxcount = MIN(65535,maxcount);
2860
2861         if (is_locked(fsp,(uint32)req->smbpid,
2862                         (SMB_BIG_UINT)maxcount,
2863                         (SMB_BIG_UINT)startpos,
2864                         READ_LOCK)) {
2865                 reply_readbraw_error();
2866                 END_PROFILE(SMBreadbraw);
2867                 return;
2868         }
2869
2870         if (SMB_VFS_FSTAT(fsp, &st) == 0) {
2871                 size = st.st_size;
2872         }
2873
2874         if (startpos >= size) {
2875                 nread = 0;
2876         } else {
2877                 nread = MIN(maxcount,(size - startpos));
2878         }
2879
2880 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2881         if (nread < mincount)
2882                 nread = 0;
2883 #endif
2884
2885         DEBUG( 3, ( "reply_readbraw: fnum=%d start=%.0f max=%lu "
2886                 "min=%lu nread=%lu\n",
2887                 fsp->fnum, (double)startpos,
2888                 (unsigned long)maxcount,
2889                 (unsigned long)mincount,
2890                 (unsigned long)nread ) );
2891
2892         send_file_readbraw(conn, fsp, startpos, nread, mincount);
2893
2894         DEBUG(5,("reply_readbraw finished\n"));
2895         END_PROFILE(SMBreadbraw);
2896 }
2897
2898 #undef DBGC_CLASS
2899 #define DBGC_CLASS DBGC_LOCKING
2900
2901 /****************************************************************************
2902  Reply to a lockread (core+ protocol).
2903 ****************************************************************************/
2904
2905 void reply_lockread(struct smb_request *req)
2906 {
2907         connection_struct *conn = req->conn;
2908         ssize_t nread = -1;
2909         char *data;
2910         SMB_OFF_T startpos;
2911         size_t numtoread;
2912         NTSTATUS status;
2913         files_struct *fsp;
2914         struct byte_range_lock *br_lck = NULL;
2915         char *p = NULL;
2916
2917         START_PROFILE(SMBlockread);
2918
2919         if (req->wct < 5) {
2920                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2921                 END_PROFILE(SMBlockread);
2922                 return;
2923         }
2924
2925         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
2926
2927         if (!check_fsp(conn, req, fsp, &current_user)) {
2928                 END_PROFILE(SMBlockread);
2929                 return;
2930         }
2931
2932         if (!CHECK_READ(fsp,req->inbuf)) {
2933                 reply_doserror(req, ERRDOS, ERRbadaccess);
2934                 END_PROFILE(SMBlockread);
2935                 return;
2936         }
2937
2938         release_level_2_oplocks_on_change(fsp);
2939
2940         numtoread = SVAL(req->inbuf,smb_vwv1);
2941         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
2942
2943         numtoread = MIN(BUFFER_SIZE - (smb_size + 3*2 + 3), numtoread);
2944
2945         reply_outbuf(req, 5, numtoread + 3);
2946
2947         data = smb_buf(req->outbuf) + 3;
2948
2949         /*
2950          * NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
2951          * protocol request that predates the read/write lock concept.
2952          * Thus instead of asking for a read lock here we need to ask
2953          * for a write lock. JRA.
2954          * Note that the requested lock size is unaffected by max_recv.
2955          */
2956
2957         br_lck = do_lock(smbd_messaging_context(),
2958                         fsp,
2959                         req->smbpid,
2960                         (SMB_BIG_UINT)numtoread,
2961                         (SMB_BIG_UINT)startpos,
2962                         WRITE_LOCK,
2963                         WINDOWS_LOCK,
2964                         False, /* Non-blocking lock. */
2965                         &status,
2966                         NULL);
2967         TALLOC_FREE(br_lck);
2968
2969         if (NT_STATUS_V(status)) {
2970                 reply_nterror(req, status);
2971                 END_PROFILE(SMBlockread);
2972                 return;
2973         }
2974
2975         /*
2976          * However the requested READ size IS affected by max_recv. Insanity.... JRA.
2977          */
2978
2979         if (numtoread > max_recv) {
2980                 DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
2981 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
2982                         (unsigned int)numtoread, (unsigned int)max_recv ));
2983                 numtoread = MIN(numtoread,max_recv);
2984         }
2985         nread = read_file(fsp,data,startpos,numtoread);
2986
2987         if (nread < 0) {
2988                 reply_unixerror(req, ERRDOS, ERRnoaccess);
2989                 END_PROFILE(SMBlockread);
2990                 return;
2991         }
2992
2993         srv_set_message((char *)req->outbuf, 5, nread+3, False);
2994
2995         SSVAL(req->outbuf,smb_vwv0,nread);
2996         SSVAL(req->outbuf,smb_vwv5,nread+3);
2997         p = smb_buf(req->outbuf);
2998         SCVAL(p,0,0); /* pad byte. */
2999         SSVAL(p,1,nread);
3000
3001         DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
3002                  fsp->fnum, (int)numtoread, (int)nread));
3003
3004         END_PROFILE(SMBlockread);
3005         return;
3006 }
3007
3008 #undef DBGC_CLASS
3009 #define DBGC_CLASS DBGC_ALL
3010
3011 /****************************************************************************
3012  Reply to a read.
3013 ****************************************************************************/
3014
3015 void reply_read(struct smb_request *req)
3016 {
3017         connection_struct *conn = req->conn;
3018         size_t numtoread;
3019         ssize_t nread = 0;
3020         char *data;
3021         SMB_OFF_T startpos;
3022         int outsize = 0;
3023         files_struct *fsp;
3024
3025         START_PROFILE(SMBread);
3026
3027         if (req->wct < 3) {
3028                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3029                 END_PROFILE(SMBread);
3030                 return;
3031         }
3032
3033         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3034
3035         if (!check_fsp(conn, req, fsp, &current_user)) {
3036                 END_PROFILE(SMBread);
3037                 return;
3038         }
3039
3040         if (!CHECK_READ(fsp,req->inbuf)) {
3041                 reply_doserror(req, ERRDOS, ERRbadaccess);
3042                 END_PROFILE(SMBread);
3043                 return;
3044         }
3045
3046         numtoread = SVAL(req->inbuf,smb_vwv1);
3047         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
3048
3049         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
3050
3051         /*
3052          * The requested read size cannot be greater than max_recv. JRA.
3053          */
3054         if (numtoread > max_recv) {
3055                 DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
3056 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
3057                         (unsigned int)numtoread, (unsigned int)max_recv ));
3058                 numtoread = MIN(numtoread,max_recv);
3059         }
3060
3061         reply_outbuf(req, 5, numtoread+3);
3062
3063         data = smb_buf(req->outbuf) + 3;
3064
3065         if (is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)numtoread,
3066                       (SMB_BIG_UINT)startpos, READ_LOCK)) {
3067                 reply_doserror(req, ERRDOS,ERRlock);
3068                 END_PROFILE(SMBread);
3069                 return;
3070         }
3071
3072         if (numtoread > 0)
3073                 nread = read_file(fsp,data,startpos,numtoread);
3074
3075         if (nread < 0) {
3076                 reply_unixerror(req, ERRDOS,ERRnoaccess);
3077                 END_PROFILE(SMBread);
3078                 return;
3079         }
3080
3081         srv_set_message((char *)req->outbuf, 5, nread+3, False);
3082
3083         SSVAL(req->outbuf,smb_vwv0,nread);
3084         SSVAL(req->outbuf,smb_vwv5,nread+3);
3085         SCVAL(smb_buf(req->outbuf),0,1);
3086         SSVAL(smb_buf(req->outbuf),1,nread);
3087
3088         DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
3089                 fsp->fnum, (int)numtoread, (int)nread ) );
3090
3091         END_PROFILE(SMBread);
3092         return;
3093 }
3094
3095 /****************************************************************************
3096  Setup readX header.
3097 ****************************************************************************/
3098
3099 static int setup_readX_header(char *outbuf, size_t smb_maxcnt)
3100 {
3101         int outsize;
3102         char *data;
3103
3104         outsize = srv_set_message(outbuf,12,smb_maxcnt,False);
3105         data = smb_buf(outbuf);
3106
3107         memset(outbuf+smb_vwv0,'\0',24); /* valgrind init. */
3108
3109         SCVAL(outbuf,smb_vwv0,0xFF);
3110         SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
3111         SSVAL(outbuf,smb_vwv5,smb_maxcnt);
3112         SSVAL(outbuf,smb_vwv6,smb_offset(data,outbuf));
3113         SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
3114         SSVAL(smb_buf(outbuf),-2,smb_maxcnt);
3115         /* Reset the outgoing length, set_message truncates at 0x1FFFF. */
3116         _smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
3117         return outsize;
3118 }
3119
3120 /****************************************************************************
3121  Reply to a read and X - possibly using sendfile.
3122 ****************************************************************************/
3123
3124 static void send_file_readX(connection_struct *conn, struct smb_request *req,
3125                             files_struct *fsp, SMB_OFF_T startpos,
3126                             size_t smb_maxcnt)
3127 {
3128         SMB_STRUCT_STAT sbuf;
3129         ssize_t nread = -1;
3130
3131         if(SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
3132                 reply_unixerror(req, ERRDOS, ERRnoaccess);
3133                 return;
3134         }
3135
3136         if (startpos > sbuf.st_size) {
3137                 smb_maxcnt = 0;
3138         } else if (smb_maxcnt > (sbuf.st_size - startpos)) {
3139                 smb_maxcnt = (sbuf.st_size - startpos);
3140         }
3141
3142         if (smb_maxcnt == 0) {
3143                 goto normal_read;
3144         }
3145
3146 #if defined(WITH_SENDFILE)
3147         /*
3148          * We can only use sendfile on a non-chained packet
3149          * but we can use on a non-oplocked file. tridge proved this
3150          * on a train in Germany :-). JRA.
3151          */
3152
3153         if ((chain_size == 0) && (CVAL(req->inbuf,smb_vwv0) == 0xFF) &&
3154             !is_encrypted_packet(req->inbuf) && (fsp->base_fsp == NULL) &&
3155             lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
3156                 uint8 headerbuf[smb_size + 12 * 2];
3157                 DATA_BLOB header;
3158
3159                 /*
3160                  * Set up the packet header before send. We
3161                  * assume here the sendfile will work (get the
3162                  * correct amount of data).
3163                  */
3164
3165                 header = data_blob_const(headerbuf, sizeof(headerbuf));
3166
3167                 construct_reply_common((char *)req->inbuf, (char *)headerbuf);
3168                 setup_readX_header((char *)headerbuf, smb_maxcnt);
3169
3170                 if ((nread = SMB_VFS_SENDFILE(smbd_server_fd(), fsp, &header, startpos, smb_maxcnt)) == -1) {
3171                         /* Returning ENOSYS or EINVAL means no data at all was sent.
3172                            Do this as a normal read. */
3173                         if (errno == ENOSYS || errno == EINVAL) {
3174                                 goto normal_read;
3175                         }
3176
3177                         /*
3178                          * Special hack for broken Linux with no working sendfile. If we
3179                          * return EINTR we sent the header but not the rest of the data.
3180                          * Fake this up by doing read/write calls.
3181                          */
3182
3183                         if (errno == EINTR) {
3184                                 /* Ensure we don't do this again. */
3185                                 set_use_sendfile(SNUM(conn), False);
3186                                 DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
3187                                 nread = fake_sendfile(fsp, startpos,
3188                                                       smb_maxcnt);
3189                                 if (nread == -1) {
3190                                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3191                                                 fsp->fsp_name, strerror(errno) ));
3192                                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3193                                 }
3194                                 DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
3195                                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3196                                 /* No outbuf here means successful sendfile. */
3197                                 TALLOC_FREE(req->outbuf);
3198                                 return;
3199                         }
3200
3201                         DEBUG(0,("send_file_readX: sendfile failed for file %s (%s). Terminating\n",
3202                                 fsp->fsp_name, strerror(errno) ));
3203                         exit_server_cleanly("send_file_readX sendfile failed");
3204                 }
3205
3206                 DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
3207                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3208                 /* No outbuf here means successful sendfile. */
3209                 TALLOC_FREE(req->outbuf);
3210                 return;
3211         }
3212 #endif
3213
3214 normal_read:
3215
3216         if ((smb_maxcnt & 0xFF0000) > 0x10000) {
3217                 uint8 headerbuf[smb_size + 2*12];
3218
3219                 construct_reply_common((char *)req->inbuf, (char *)headerbuf);
3220                 setup_readX_header((char *)headerbuf, smb_maxcnt);
3221
3222                 /* Send out the header. */
3223                 if (write_data(smbd_server_fd(), (char *)headerbuf,
3224                                sizeof(headerbuf)) != sizeof(headerbuf)) {
3225                         DEBUG(0,("send_file_readX: write_data failed for file %s (%s). Terminating\n",
3226                                 fsp->fsp_name, strerror(errno) ));
3227                         exit_server_cleanly("send_file_readX sendfile failed");
3228                 }
3229                 nread = fake_sendfile(fsp, startpos, smb_maxcnt);
3230                 if (nread == -1) {
3231                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3232                                 fsp->fsp_name, strerror(errno) ));
3233                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3234                 }
3235                 TALLOC_FREE(req->outbuf);
3236                 return;
3237         } else {
3238                 reply_outbuf(req, 12, smb_maxcnt);
3239
3240                 nread = read_file(fsp, smb_buf(req->outbuf), startpos,
3241                                   smb_maxcnt);
3242                 if (nread < 0) {
3243                         reply_unixerror(req, ERRDOS, ERRnoaccess);
3244                         return;
3245                 }
3246
3247                 setup_readX_header((char *)req->outbuf, nread);
3248
3249                 DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
3250                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3251
3252                 chain_reply(req);
3253
3254                 return;
3255         }
3256 }
3257
3258 /****************************************************************************
3259  Reply to a read and X.
3260 ****************************************************************************/
3261
3262 void reply_read_and_X(struct smb_request *req)
3263 {
3264         connection_struct *conn = req->conn;
3265         files_struct *fsp;
3266         SMB_OFF_T startpos;
3267         size_t smb_maxcnt;
3268         bool big_readX = False;
3269 #if 0
3270         size_t smb_mincnt = SVAL(req->inbuf,smb_vwv6);
3271 #endif
3272
3273         START_PROFILE(SMBreadX);
3274
3275         if ((req->wct != 10) && (req->wct != 12)) {
3276                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3277                 return;
3278         }
3279
3280         fsp = file_fsp(SVAL(req->inbuf,smb_vwv2));
3281         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv3);
3282         smb_maxcnt = SVAL(req->inbuf,smb_vwv5);
3283
3284         /* If it's an IPC, pass off the pipe handler. */
3285         if (IS_IPC(conn)) {
3286                 reply_pipe_read_and_X(req);
3287                 END_PROFILE(SMBreadX);
3288                 return;
3289         }
3290
3291         if (!check_fsp(conn, req, fsp, &current_user)) {
3292                 END_PROFILE(SMBreadX);
3293                 return;
3294         }
3295
3296         if (!CHECK_READ(fsp,req->inbuf)) {
3297                 reply_doserror(req, ERRDOS,ERRbadaccess);
3298                 END_PROFILE(SMBreadX);
3299                 return;
3300         }
3301
3302         if (global_client_caps & CAP_LARGE_READX) {
3303                 size_t upper_size = SVAL(req->inbuf,smb_vwv7);
3304                 smb_maxcnt |= (upper_size<<16);
3305                 if (upper_size > 1) {
3306                         /* Can't do this on a chained packet. */
3307                         if ((CVAL(req->inbuf,smb_vwv0) != 0xFF)) {
3308                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3309                                 END_PROFILE(SMBreadX);
3310                                 return;
3311                         }
3312                         /* We currently don't do this on signed or sealed data. */
3313                         if (srv_is_signing_active() || is_encrypted_packet(req->inbuf)) {
3314                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3315                                 END_PROFILE(SMBreadX);
3316                                 return;
3317                         }
3318                         /* Is there room in the reply for this data ? */
3319                         if (smb_maxcnt > (0xFFFFFF - (smb_size -4 + 12*2)))  {
3320                                 reply_nterror(req,
3321                                               NT_STATUS_INVALID_PARAMETER);
3322                                 END_PROFILE(SMBreadX);
3323                                 return;
3324                         }
3325                         big_readX = True;
3326                 }
3327         }
3328
3329         if (req->wct == 12) {
3330 #ifdef LARGE_SMB_OFF_T
3331                 /*
3332                  * This is a large offset (64 bit) read.
3333                  */
3334                 startpos |= (((SMB_OFF_T)IVAL(req->inbuf,smb_vwv10)) << 32);
3335
3336 #else /* !LARGE_SMB_OFF_T */
3337
3338                 /*
3339                  * Ensure we haven't been sent a >32 bit offset.
3340                  */
3341
3342                 if(IVAL(req->inbuf,smb_vwv10) != 0) {
3343                         DEBUG(0,("reply_read_and_X - large offset (%x << 32) "
3344                                  "used and we don't support 64 bit offsets.\n",
3345                                  (unsigned int)IVAL(req->inbuf,smb_vwv10) ));
3346                         END_PROFILE(SMBreadX);
3347                         reply_doserror(req, ERRDOS, ERRbadaccess);
3348                         return;
3349                 }
3350
3351 #endif /* LARGE_SMB_OFF_T */
3352
3353         }
3354
3355         if (is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)smb_maxcnt,
3356                       (SMB_BIG_UINT)startpos, READ_LOCK)) {
3357                 END_PROFILE(SMBreadX);
3358                 reply_doserror(req, ERRDOS, ERRlock);
3359                 return;
3360         }
3361
3362         if (!big_readX &&
3363             schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) {
3364                 END_PROFILE(SMBreadX);
3365                 return;
3366         }
3367
3368         send_file_readX(conn, req, fsp, startpos, smb_maxcnt);
3369
3370         END_PROFILE(SMBreadX);
3371         return;
3372 }
3373
3374 /****************************************************************************
3375  Error replies to writebraw must have smb_wct == 1. Fix this up.
3376 ****************************************************************************/
3377
3378 void error_to_writebrawerr(struct smb_request *req)
3379 {
3380         uint8 *old_outbuf = req->outbuf;
3381
3382         reply_outbuf(req, 1, 0);
3383
3384         memcpy(req->outbuf, old_outbuf, smb_size);
3385         TALLOC_FREE(old_outbuf);
3386 }
3387
3388 /****************************************************************************
3389  Reply to a writebraw (core+ or LANMAN1.0 protocol).
3390 ****************************************************************************/
3391
3392 void reply_writebraw(struct smb_request *req)
3393 {
3394         connection_struct *conn = req->conn;
3395         char *buf = NULL;
3396         ssize_t nwritten=0;
3397         ssize_t total_written=0;
3398         size_t numtowrite=0;
3399         size_t tcount;
3400         SMB_OFF_T startpos;
3401         char *data=NULL;
3402         bool write_through;
3403         files_struct *fsp;
3404         NTSTATUS status;
3405
3406         START_PROFILE(SMBwritebraw);
3407
3408         /*
3409          * If we ever reply with an error, it must have the SMB command
3410          * type of SMBwritec, not SMBwriteBraw, as this tells the client
3411          * we're finished.
3412          */
3413         SCVAL(req->inbuf,smb_com,SMBwritec);
3414
3415         if (srv_is_signing_active()) {
3416                 END_PROFILE(SMBwritebraw);
3417                 exit_server_cleanly("reply_writebraw: SMB signing is active - "
3418                                 "raw reads/writes are disallowed.");
3419         }
3420
3421         if (req->wct < 12) {
3422                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3423                 error_to_writebrawerr(req);
3424                 END_PROFILE(SMBwritebraw);
3425                 return;
3426         }
3427
3428         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3429         if (!check_fsp(conn, req, fsp, &current_user)) {
3430                 error_to_writebrawerr(req);
3431                 END_PROFILE(SMBwritebraw);
3432                 return;
3433         }
3434
3435         if (!CHECK_WRITE(fsp)) {
3436                 reply_doserror(req, ERRDOS, ERRbadaccess);
3437                 error_to_writebrawerr(req);
3438                 END_PROFILE(SMBwritebraw);
3439                 return;
3440         }
3441
3442         tcount = IVAL(req->inbuf,smb_vwv1);
3443         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv3);
3444         write_through = BITSETW(req->inbuf+smb_vwv7,0);
3445
3446         /* We have to deal with slightly different formats depending
3447                 on whether we are using the core+ or lanman1.0 protocol */
3448
3449         if(Protocol <= PROTOCOL_COREPLUS) {
3450                 numtowrite = SVAL(smb_buf(req->inbuf),-2);
3451                 data = smb_buf(req->inbuf);
3452         } else {
3453                 numtowrite = SVAL(req->inbuf,smb_vwv10);
3454                 data = smb_base(req->inbuf) + SVAL(req->inbuf, smb_vwv11);
3455         }
3456
3457         /* Ensure we don't write bytes past the end of this packet. */
3458         if (data + numtowrite > smb_base(req->inbuf) + smb_len(req->inbuf)) {
3459                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3460                 error_to_writebrawerr(req);
3461                 END_PROFILE(SMBwritebraw);
3462                 return;
3463         }
3464
3465         if (is_locked(fsp,(uint32)req->smbpid,(SMB_BIG_UINT)tcount,
3466                                 (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3467                 reply_doserror(req, ERRDOS, ERRlock);
3468                 error_to_writebrawerr(req);
3469                 END_PROFILE(SMBwritebraw);
3470                 return;
3471         }
3472
3473         if (numtowrite>0) {
3474                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
3475         }
3476
3477         DEBUG(3,("reply_writebraw: initial write fnum=%d start=%.0f num=%d "
3478                         "wrote=%d sync=%d\n",
3479                 fsp->fnum, (double)startpos, (int)numtowrite,
3480                 (int)nwritten, (int)write_through));
3481
3482         if (nwritten < (ssize_t)numtowrite)  {
3483                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3484                 error_to_writebrawerr(req);
3485                 END_PROFILE(SMBwritebraw);
3486                 return;
3487         }
3488
3489         total_written = nwritten;
3490
3491         /* Allocate a buffer of 64k + length. */
3492         buf = TALLOC_ARRAY(NULL, char, 65540);
3493         if (!buf) {
3494                 reply_doserror(req, ERRDOS, ERRnomem);
3495                 error_to_writebrawerr(req);
3496                 END_PROFILE(SMBwritebraw);
3497                 return;
3498         }
3499
3500         /* Return a SMBwritebraw message to the redirector to tell
3501          * it to send more bytes */
3502
3503         memcpy(buf, req->inbuf, smb_size);
3504         srv_set_message(buf,Protocol>PROTOCOL_COREPLUS?1:0,0,True);
3505         SCVAL(buf,smb_com,SMBwritebraw);
3506         SSVALS(buf,smb_vwv0,0xFFFF);
3507         show_msg(buf);
3508         if (!srv_send_smb(smbd_server_fd(),
3509                         buf,
3510                         IS_CONN_ENCRYPTED(conn))) {
3511                 exit_server_cleanly("reply_writebraw: srv_send_smb "
3512                         "failed.");
3513         }
3514
3515         /* Now read the raw data into the buffer and write it */
3516         status = read_smb_length(smbd_server_fd(), buf, SMB_SECONDARY_WAIT,
3517                                  &numtowrite);
3518         if (!NT_STATUS_IS_OK(status)) {
3519                 exit_server_cleanly("secondary writebraw failed");
3520         }
3521
3522         /* Set up outbuf to return the correct size */
3523         reply_outbuf(req, 1, 0);
3524
3525         if (numtowrite != 0) {
3526
3527                 if (numtowrite > 0xFFFF) {
3528                         DEBUG(0,("reply_writebraw: Oversize secondary write "
3529                                 "raw requested (%u). Terminating\n",
3530                                 (unsigned int)numtowrite ));
3531                         exit_server_cleanly("secondary writebraw failed");
3532                 }
3533
3534                 if (tcount > nwritten+numtowrite) {
3535                         DEBUG(3,("reply_writebraw: Client overestimated the "
3536                                 "write %d %d %d\n",
3537                                 (int)tcount,(int)nwritten,(int)numtowrite));
3538                 }
3539
3540                 status = read_data(smbd_server_fd(), buf+4, numtowrite);
3541
3542                 if (!NT_STATUS_IS_OK(status)) {
3543                         DEBUG(0,("reply_writebraw: Oversize secondary write "
3544                                  "raw read failed (%s). Terminating\n",
3545                                  nt_errstr(status)));
3546                         exit_server_cleanly("secondary writebraw failed");
3547                 }
3548
3549                 nwritten = write_file(req,fsp,buf+4,startpos+nwritten,numtowrite);
3550                 if (nwritten == -1) {
3551                         TALLOC_FREE(buf);
3552                         reply_unixerror(req, ERRHRD, ERRdiskfull);
3553                         error_to_writebrawerr(req);
3554                         END_PROFILE(SMBwritebraw);
3555                         return;
3556                 }
3557
3558                 if (nwritten < (ssize_t)numtowrite) {
3559                         SCVAL(req->outbuf,smb_rcls,ERRHRD);
3560                         SSVAL(req->outbuf,smb_err,ERRdiskfull);
3561                 }
3562
3563                 if (nwritten > 0) {
3564                         total_written += nwritten;
3565                 }
3566         }
3567
3568         TALLOC_FREE(buf);
3569         SSVAL(req->outbuf,smb_vwv0,total_written);
3570
3571         status = sync_file(conn, fsp, write_through);
3572         if (!NT_STATUS_IS_OK(status)) {
3573                 DEBUG(5,("reply_writebraw: sync_file for %s returned %s\n",
3574                         fsp->fsp_name, nt_errstr(status) ));
3575                 reply_nterror(req, status);
3576                 error_to_writebrawerr(req);
3577                 END_PROFILE(SMBwritebraw);
3578                 return;
3579         }
3580
3581         DEBUG(3,("reply_writebraw: secondart write fnum=%d start=%.0f num=%d "
3582                 "wrote=%d\n",
3583                 fsp->fnum, (double)startpos, (int)numtowrite,
3584                 (int)total_written));
3585
3586         /* We won't return a status if write through is not selected - this
3587          * follows what WfWg does */
3588         END_PROFILE(SMBwritebraw);
3589
3590         if (!write_through && total_written==tcount) {
3591
3592 #if RABBIT_PELLET_FIX
3593                 /*
3594                  * Fix for "rabbit pellet" mode, trigger an early TCP ack by
3595                  * sending a SMBkeepalive. Thanks to DaveCB at Sun for this.
3596                  * JRA.
3597                  */
3598                 if (!send_keepalive(smbd_server_fd())) {
3599                         exit_server_cleanly("reply_writebraw: send of "
3600                                 "keepalive failed");
3601                 }
3602 #endif
3603                 TALLOC_FREE(req->outbuf);
3604         }
3605         return;
3606 }
3607
3608 #undef DBGC_CLASS
3609 #define DBGC_CLASS DBGC_LOCKING
3610
3611 /****************************************************************************
3612  Reply to a writeunlock (core+).
3613 ****************************************************************************/
3614
3615 void reply_writeunlock(struct smb_request *req)
3616 {
3617         connection_struct *conn = req->conn;
3618         ssize_t nwritten = -1;
3619         size_t numtowrite;
3620         SMB_OFF_T startpos;
3621         char *data;
3622         NTSTATUS status = NT_STATUS_OK;
3623         files_struct *fsp;
3624
3625         START_PROFILE(SMBwriteunlock);
3626
3627         if (req->wct < 5) {
3628                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3629                 END_PROFILE(SMBwriteunlock);
3630                 return;
3631         }
3632
3633         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3634
3635         if (!check_fsp(conn, req, fsp, &current_user)) {
3636                 END_PROFILE(SMBwriteunlock);
3637                 return;
3638         }
3639
3640         if (!CHECK_WRITE(fsp)) {
3641                 reply_doserror(req, ERRDOS,ERRbadaccess);
3642                 END_PROFILE(SMBwriteunlock);
3643                 return;
3644         }
3645
3646         numtowrite = SVAL(req->inbuf,smb_vwv1);
3647         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
3648         data = smb_buf(req->inbuf) + 3;
3649
3650         if (numtowrite
3651             && is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)numtowrite,
3652                          (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3653                 reply_doserror(req, ERRDOS, ERRlock);
3654                 END_PROFILE(SMBwriteunlock);
3655                 return;
3656         }
3657
3658         /* The special X/Open SMB protocol handling of
3659            zero length writes is *NOT* done for
3660            this call */
3661         if(numtowrite == 0) {
3662                 nwritten = 0;
3663         } else {
3664                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
3665         }
3666
3667         status = sync_file(conn, fsp, False /* write through */);
3668         if (!NT_STATUS_IS_OK(status)) {
3669                 DEBUG(5,("reply_writeunlock: sync_file for %s returned %s\n",
3670                         fsp->fsp_name, nt_errstr(status) ));
3671                 reply_nterror(req, status);
3672                 END_PROFILE(SMBwriteunlock);
3673                 return;
3674         }
3675
3676         if(((nwritten < numtowrite) && (numtowrite != 0))||(nwritten < 0)) {
3677                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3678                 END_PROFILE(SMBwriteunlock);
3679                 return;
3680         }
3681
3682         if (numtowrite) {
3683                 status = do_unlock(smbd_messaging_context(),
3684                                 fsp,
3685                                 req->smbpid,
3686                                 (SMB_BIG_UINT)numtowrite,
3687                                 (SMB_BIG_UINT)startpos,
3688                                 WINDOWS_LOCK);
3689
3690                 if (NT_STATUS_V(status)) {
3691                         reply_nterror(req, status);
3692                         END_PROFILE(SMBwriteunlock);
3693                         return;
3694                 }
3695         }
3696
3697         reply_outbuf(req, 1, 0);
3698
3699         SSVAL(req->outbuf,smb_vwv0,nwritten);
3700
3701         DEBUG(3,("writeunlock fnum=%d num=%d wrote=%d\n",
3702                  fsp->fnum, (int)numtowrite, (int)nwritten));
3703
3704         END_PROFILE(SMBwriteunlock);
3705         return;
3706 }
3707
3708 #undef DBGC_CLASS
3709 #define DBGC_CLASS DBGC_ALL
3710
3711 /****************************************************************************
3712  Reply to a write.
3713 ****************************************************************************/
3714
3715 void reply_write(struct smb_request *req)
3716 {
3717         connection_struct *conn = req->conn;
3718         size_t numtowrite;
3719         ssize_t nwritten = -1;
3720         SMB_OFF_T startpos;
3721         char *data;
3722         files_struct *fsp;
3723         NTSTATUS status;
3724
3725         START_PROFILE(SMBwrite);
3726
3727         if (req->wct < 5) {
3728                 END_PROFILE(SMBwrite);
3729                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3730                 return;
3731         }
3732
3733         /* If it's an IPC, pass off the pipe handler. */
3734         if (IS_IPC(conn)) {
3735                 reply_pipe_write(req);
3736                 END_PROFILE(SMBwrite);
3737                 return;
3738         }
3739
3740         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3741
3742         if (!check_fsp(conn, req, fsp, &current_user)) {
3743                 END_PROFILE(SMBwrite);
3744                 return;
3745         }
3746
3747         if (!CHECK_WRITE(fsp)) {
3748                 reply_doserror(req, ERRDOS, ERRbadaccess);
3749                 END_PROFILE(SMBwrite);
3750                 return;
3751         }
3752
3753         numtowrite = SVAL(req->inbuf,smb_vwv1);
3754         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
3755         data = smb_buf(req->inbuf) + 3;
3756
3757         if (is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)numtowrite,
3758                       (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3759                 reply_doserror(req, ERRDOS, ERRlock);
3760                 END_PROFILE(SMBwrite);
3761                 return;
3762         }
3763
3764         /*
3765          * X/Open SMB protocol says that if smb_vwv1 is
3766          * zero then the file size should be extended or
3767          * truncated to the size given in smb_vwv[2-3].
3768          */
3769
3770         if(numtowrite == 0) {
3771                 /*
3772                  * This is actually an allocate call, and set EOF. JRA.
3773                  */
3774                 nwritten = vfs_allocate_file_space(fsp, (SMB_OFF_T)startpos);
3775                 if (nwritten < 0) {
3776                         reply_nterror(req, NT_STATUS_DISK_FULL);
3777                         END_PROFILE(SMBwrite);
3778                         return;
3779                 }
3780                 nwritten = vfs_set_filelen(fsp, (SMB_OFF_T)startpos);
3781                 if (nwritten < 0) {
3782                         reply_nterror(req, NT_STATUS_DISK_FULL);
3783                         END_PROFILE(SMBwrite);
3784                         return;
3785                 }
3786         } else
3787                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
3788
3789         status = sync_file(conn, fsp, False);
3790         if (!NT_STATUS_IS_OK(status)) {
3791                 DEBUG(5,("reply_write: sync_file for %s returned %s\n",
3792                         fsp->fsp_name, nt_errstr(status) ));
3793                 reply_nterror(req, status);
3794                 END_PROFILE(SMBwrite);
3795                 return;
3796         }
3797
3798         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3799                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3800                 END_PROFILE(SMBwrite);
3801                 return;
3802         }
3803
3804         reply_outbuf(req, 1, 0);
3805
3806         SSVAL(req->outbuf,smb_vwv0,nwritten);
3807
3808         if (nwritten < (ssize_t)numtowrite) {
3809                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
3810                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
3811         }
3812
3813         DEBUG(3,("write fnum=%d num=%d wrote=%d\n", fsp->fnum, (int)numtowrite, (int)nwritten));
3814
3815         END_PROFILE(SMBwrite);
3816         return;
3817 }
3818
3819 /****************************************************************************
3820  Ensure a buffer is a valid writeX for recvfile purposes.
3821 ****************************************************************************/
3822
3823 #define STANDARD_WRITE_AND_X_HEADER_SIZE (smb_size - 4 + /* basic header */ \
3824                                                 (2*14) + /* word count (including bcc) */ \
3825                                                 1 /* pad byte */)
3826
3827 bool is_valid_writeX_buffer(const uint8_t *inbuf)
3828 {
3829         size_t numtowrite;
3830         connection_struct *conn = NULL;
3831         unsigned int doff = 0;
3832         size_t len = smb_len_large(inbuf);
3833
3834         if (is_encrypted_packet(inbuf)) {
3835                 /* Can't do this on encrypted
3836                  * connections. */
3837                 return false;
3838         }
3839
3840         if (CVAL(inbuf,smb_com) != SMBwriteX) {
3841                 return false;
3842         }
3843
3844         if (CVAL(inbuf,smb_vwv0) != 0xFF ||
3845                         CVAL(inbuf,smb_wct) != 14) {
3846                 DEBUG(10,("is_valid_writeX_buffer: chained or "
3847                         "invalid word length.\n"));
3848                 return false;
3849         }
3850
3851         conn = conn_find(SVAL(inbuf, smb_tid));
3852         if (conn == NULL) {
3853                 DEBUG(10,("is_valid_writeX_buffer: bad tid\n"));
3854                 return false;
3855         }
3856         if (IS_IPC(conn)) {
3857                 DEBUG(10,("is_valid_writeX_buffer: IPC$ tid\n"));
3858                 return false;
3859         }
3860         doff = SVAL(inbuf,smb_vwv11);
3861
3862         numtowrite = SVAL(inbuf,smb_vwv10);
3863
3864         if (len > doff && len - doff > 0xFFFF) {
3865                 numtowrite |= (((size_t)SVAL(inbuf,smb_vwv9))<<16);
3866         }
3867
3868         if (numtowrite == 0) {
3869                 DEBUG(10,("is_valid_writeX_buffer: zero write\n"));
3870                 return false;
3871         }
3872
3873         /* Ensure the sizes match up. */
3874         if (doff < STANDARD_WRITE_AND_X_HEADER_SIZE) {
3875                 /* no pad byte...old smbclient :-( */
3876                 DEBUG(10,("is_valid_writeX_buffer: small doff %u (min %u)\n",
3877                         (unsigned int)doff,
3878                         (unsigned int)STANDARD_WRITE_AND_X_HEADER_SIZE));
3879                 return false;
3880         }
3881
3882         if (len - doff != numtowrite) {
3883                 DEBUG(10,("is_valid_writeX_buffer: doff mismatch "
3884                         "len = %u, doff = %u, numtowrite = %u\n",
3885                         (unsigned int)len,
3886                         (unsigned int)doff,
3887                         (unsigned int)numtowrite ));
3888                 return false;
3889         }
3890
3891         DEBUG(10,("is_valid_writeX_buffer: true "
3892                 "len = %u, doff = %u, numtowrite = %u\n",
3893                 (unsigned int)len,
3894                 (unsigned int)doff,
3895                 (unsigned int)numtowrite ));
3896
3897         return true;
3898 }
3899
3900 /****************************************************************************
3901  Reply to a write and X.
3902 ****************************************************************************/
3903
3904 void reply_write_and_X(struct smb_request *req)
3905 {
3906         connection_struct *conn = req->conn;
3907         files_struct *fsp;
3908         SMB_OFF_T startpos;
3909         size_t numtowrite;
3910         bool write_through;
3911         ssize_t nwritten;
3912         unsigned int smb_doff;
3913         unsigned int smblen;
3914         char *data;
3915         NTSTATUS status;
3916
3917         START_PROFILE(SMBwriteX);
3918
3919         if ((req->wct != 12) && (req->wct != 14)) {
3920                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3921                 END_PROFILE(SMBwriteX);
3922                 return;
3923         }
3924
3925         numtowrite = SVAL(req->inbuf,smb_vwv10);
3926         smb_doff = SVAL(req->inbuf,smb_vwv11);
3927         smblen = smb_len(req->inbuf);
3928
3929         if (req->unread_bytes > 0xFFFF ||
3930                         (smblen > smb_doff &&
3931                                 smblen - smb_doff > 0xFFFF)) {
3932                 numtowrite |= (((size_t)SVAL(req->inbuf,smb_vwv9))<<16);
3933         }
3934
3935         if (req->unread_bytes) {
3936                 /* Can't do a recvfile write on IPC$ */
3937                 if (IS_IPC(conn)) {
3938                         reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3939                         END_PROFILE(SMBwriteX);
3940                         return;
3941                 }
3942                 if (numtowrite != req->unread_bytes) {
3943                         reply_doserror(req, ERRDOS, ERRbadmem);
3944                         END_PROFILE(SMBwriteX);
3945                         return;
3946                 }
3947         } else {
3948                 if (smb_doff > smblen || smb_doff + numtowrite < numtowrite ||
3949                                 smb_doff + numtowrite > smblen) {
3950                         reply_doserror(req, ERRDOS, ERRbadmem);
3951                         END_PROFILE(SMBwriteX);
3952                         return;
3953                 }
3954         }
3955
3956         /* If it's an IPC, pass off the pipe handler. */
3957         if (IS_IPC(conn)) {
3958                 if (req->unread_bytes) {
3959                         reply_doserror(req, ERRDOS, ERRbadmem);
3960                         END_PROFILE(SMBwriteX);
3961                         return;
3962                 }
3963                 reply_pipe_write_and_X(req);
3964                 END_PROFILE(SMBwriteX);
3965                 return;
3966         }
3967
3968         fsp = file_fsp(SVAL(req->inbuf,smb_vwv2));
3969         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv3);
3970         write_through = BITSETW(req->inbuf+smb_vwv7,0);
3971
3972         if (!check_fsp(conn, req, fsp, &current_user)) {
3973                 END_PROFILE(SMBwriteX);
3974                 return;
3975         }
3976
3977         if (!CHECK_WRITE(fsp)) {
3978                 reply_doserror(req, ERRDOS, ERRbadaccess);
3979                 END_PROFILE(SMBwriteX);
3980                 return;
3981         }
3982
3983         data = smb_base(req->inbuf) + smb_doff;
3984
3985         if(req->wct == 14) {
3986 #ifdef LARGE_SMB_OFF_T
3987                 /*
3988                  * This is a large offset (64 bit) write.
3989                  */
3990                 startpos |= (((SMB_OFF_T)IVAL(req->inbuf,smb_vwv12)) << 32);
3991
3992 #else /* !LARGE_SMB_OFF_T */
3993
3994                 /*
3995                  * Ensure we haven't been sent a >32 bit offset.
3996                  */
3997
3998                 if(IVAL(req->inbuf,smb_vwv12) != 0) {
3999                         DEBUG(0,("reply_write_and_X - large offset (%x << 32) "
4000                                  "used and we don't support 64 bit offsets.\n",
4001                                  (unsigned int)IVAL(req->inbuf,smb_vwv12) ));
4002                         reply_doserror(req, ERRDOS, ERRbadaccess);
4003                         END_PROFILE(SMBwriteX);
4004                         return;
4005                 }
4006
4007 #endif /* LARGE_SMB_OFF_T */
4008         }
4009
4010         if (is_locked(fsp,(uint32)req->smbpid,
4011                       (SMB_BIG_UINT)numtowrite,
4012                       (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
4013                 reply_doserror(req, ERRDOS, ERRlock);
4014                 END_PROFILE(SMBwriteX);
4015                 return;
4016         }
4017
4018         /* X/Open SMB protocol says that, unlike SMBwrite
4019         if the length is zero then NO truncation is
4020         done, just a write of zero. To truncate a file,
4021         use SMBwrite. */
4022
4023         if(numtowrite == 0) {
4024                 nwritten = 0;
4025         } else {
4026
4027                 if ((req->unread_bytes == 0) &&
4028                     schedule_aio_write_and_X(conn, req, fsp, data, startpos,
4029                                              numtowrite)) {
4030                         END_PROFILE(SMBwriteX);
4031                         return;
4032                 }
4033
4034                 nwritten = write_file(req,fsp,data,startpos,numtowrite);
4035         }
4036
4037         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
4038                 reply_unixerror(req, ERRHRD, ERRdiskfull);
4039                 END_PROFILE(SMBwriteX);
4040                 return;
4041         }
4042
4043         reply_outbuf(req, 6, 0);
4044         SSVAL(req->outbuf,smb_vwv2,nwritten);
4045         SSVAL(req->outbuf,smb_vwv4,nwritten>>16);
4046
4047         if (nwritten < (ssize_t)numtowrite) {
4048                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
4049                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
4050         }
4051
4052         DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
4053                 fsp->fnum, (int)numtowrite, (int)nwritten));
4054
4055         status = sync_file(conn, fsp, write_through);
4056         if (!NT_STATUS_IS_OK(status)) {
4057                 DEBUG(5,("reply_write_and_X: sync_file for %s returned %s\n",
4058                         fsp->fsp_name, nt_errstr(status) ));
4059                 reply_nterror(req, status);
4060                 END_PROFILE(SMBwriteX);
4061                 return;
4062         }
4063
4064         END_PROFILE(SMBwriteX);
4065         chain_reply(req);
4066         return;
4067 }
4068
4069 /****************************************************************************
4070  Reply to a lseek.
4071 ****************************************************************************/
4072
4073 void reply_lseek(struct smb_request *req)
4074 {
4075         connection_struct *conn = req->conn;
4076         SMB_OFF_T startpos;
4077         SMB_OFF_T res= -1;
4078         int mode,umode;
4079         files_struct *fsp;
4080
4081         START_PROFILE(SMBlseek);
4082
4083         if (req->wct < 4) {
4084                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4085                 END_PROFILE(SMBlseek);
4086                 return;
4087         }
4088
4089         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4090
4091         if (!check_fsp(conn, req, fsp, &current_user)) {
4092                 return;
4093         }
4094
4095         flush_write_cache(fsp, SEEK_FLUSH);
4096
4097         mode = SVAL(req->inbuf,smb_vwv1) & 3;
4098         /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
4099         startpos = (SMB_OFF_T)IVALS(req->inbuf,smb_vwv2);
4100
4101         switch (mode) {
4102                 case 0:
4103                         umode = SEEK_SET;
4104                         res = startpos;
4105                         break;
4106                 case 1:
4107                         umode = SEEK_CUR;
4108                         res = fsp->fh->pos + startpos;
4109                         break;
4110                 case 2:
4111                         umode = SEEK_END;
4112                         break;
4113                 default:
4114                         umode = SEEK_SET;
4115                         res = startpos;
4116                         break;
4117         }
4118
4119         if (umode == SEEK_END) {
4120                 if((res = SMB_VFS_LSEEK(fsp,startpos,umode)) == -1) {
4121                         if(errno == EINVAL) {
4122                                 SMB_OFF_T current_pos = startpos;
4123                                 SMB_STRUCT_STAT sbuf;
4124
4125                                 if(SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
4126                                         reply_unixerror(req, ERRDOS,
4127                                                         ERRnoaccess);
4128                                         END_PROFILE(SMBlseek);
4129                                         return;
4130                                 }
4131
4132                                 current_pos += sbuf.st_size;
4133                                 if(current_pos < 0)
4134                                         res = SMB_VFS_LSEEK(fsp,0,SEEK_SET);
4135                         }
4136                 }
4137
4138                 if(res == -1) {
4139                         reply_unixerror(req, ERRDOS, ERRnoaccess);
4140                         END_PROFILE(SMBlseek);
4141                         return;
4142                 }
4143         }
4144
4145         fsp->fh->pos = res;
4146
4147         reply_outbuf(req, 2, 0);
4148         SIVAL(req->outbuf,smb_vwv0,res);
4149
4150         DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
4151                 fsp->fnum, (double)startpos, (double)res, mode));
4152
4153         END_PROFILE(SMBlseek);
4154         return;
4155 }
4156
4157 /****************************************************************************
4158  Reply to a flush.
4159 ****************************************************************************/
4160
4161 void reply_flush(struct smb_request *req)
4162 {
4163         connection_struct *conn = req->conn;
4164         uint16 fnum;
4165         files_struct *fsp;
4166
4167         START_PROFILE(SMBflush);
4168
4169         if (req->wct < 1) {
4170                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4171                 return;
4172         }
4173
4174         fnum = SVAL(req->inbuf,smb_vwv0);
4175         fsp = file_fsp(fnum);
4176
4177         if ((fnum != 0xFFFF) && !check_fsp(conn, req, fsp, &current_user)) {
4178                 return;
4179         }
4180
4181         if (!fsp) {
4182                 file_sync_all(conn);
4183         } else {
4184                 NTSTATUS status = sync_file(conn, fsp, True);
4185                 if (!NT_STATUS_IS_OK(status)) {
4186                         DEBUG(5,("reply_flush: sync_file for %s returned %s\n",
4187                                 fsp->fsp_name, nt_errstr(status) ));
4188                         reply_nterror(req, status);
4189                         END_PROFILE(SMBflush);
4190                         return;
4191                 }
4192         }
4193
4194         reply_outbuf(req, 0, 0);
4195
4196         DEBUG(3,("flush\n"));
4197         END_PROFILE(SMBflush);
4198         return;
4199 }
4200
4201 /****************************************************************************
4202  Reply to a exit.
4203  conn POINTER CAN BE NULL HERE !
4204 ****************************************************************************/
4205
4206 void reply_exit(struct smb_request *req)
4207 {
4208         START_PROFILE(SMBexit);
4209
4210         file_close_pid(req->smbpid, req->vuid);
4211
4212         reply_outbuf(req, 0, 0);
4213
4214         DEBUG(3,("exit\n"));
4215
4216         END_PROFILE(SMBexit);
4217         return;
4218 }
4219
4220 /****************************************************************************
4221  Reply to a close - has to deal with closing a directory opened by NT SMB's.
4222 ****************************************************************************/
4223
4224 void reply_close(struct smb_request *req)
4225 {
4226         connection_struct *conn = req->conn;
4227         NTSTATUS status = NT_STATUS_OK;
4228         files_struct *fsp = NULL;
4229         START_PROFILE(SMBclose);
4230
4231         if (req->wct < 3) {
4232                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4233                 END_PROFILE(SMBclose);
4234                 return;
4235         }
4236
4237         /* If it's an IPC, pass off to the pipe handler. */
4238         if (IS_IPC(conn)) {
4239                 reply_pipe_close(conn, req);
4240                 END_PROFILE(SMBclose);
4241                 return;
4242         }
4243
4244         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4245
4246         /*
4247          * We can only use CHECK_FSP if we know it's not a directory.
4248          */
4249
4250         if(!fsp || (fsp->conn != conn) || (fsp->vuid != current_user.vuid)) {
4251                 reply_doserror(req, ERRDOS, ERRbadfid);
4252                 END_PROFILE(SMBclose);
4253                 return;
4254         }
4255
4256         if(fsp->is_directory) {
4257                 /*
4258                  * Special case - close NT SMB directory handle.
4259                  */
4260                 DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
4261                 status = close_file(fsp,NORMAL_CLOSE);
4262         } else {
4263                 time_t t;
4264                 /*
4265                  * Close ordinary file.
4266                  */
4267
4268                 DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
4269                          fsp->fh->fd, fsp->fnum,
4270                          conn->num_files_open));
4271
4272                 /*
4273                  * Take care of any time sent in the close.
4274                  */
4275
4276                 t = srv_make_unix_date3(req->inbuf+smb_vwv1);
4277                 set_close_write_time(fsp, convert_time_t_to_timespec(t));
4278
4279                 /*
4280                  * close_file() returns the unix errno if an error
4281                  * was detected on close - normally this is due to
4282                  * a disk full error. If not then it was probably an I/O error.
4283                  */
4284
4285                 status = close_file(fsp,NORMAL_CLOSE);
4286         }
4287
4288         if (!NT_STATUS_IS_OK(status)) {
4289                 reply_nterror(req, status);
4290                 END_PROFILE(SMBclose);
4291                 return;
4292         }
4293
4294         reply_outbuf(req, 0, 0);
4295         END_PROFILE(SMBclose);
4296         return;
4297 }
4298
4299 /****************************************************************************
4300  Reply to a writeclose (Core+ protocol).
4301 ****************************************************************************/
4302
4303 void reply_writeclose(struct smb_request *req)
4304 {
4305         connection_struct *conn = req->conn;
4306         size_t numtowrite;
4307         ssize_t nwritten = -1;
4308         NTSTATUS close_status = NT_STATUS_OK;
4309         SMB_OFF_T startpos;
4310         char *data;
4311         struct timespec mtime;
4312         files_struct *fsp;
4313
4314         START_PROFILE(SMBwriteclose);
4315
4316         if (req->wct < 6) {
4317                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4318                 END_PROFILE(SMBwriteclose);
4319                 return;
4320         }
4321
4322         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4323
4324         if (!check_fsp(conn, req, fsp, &current_user)) {
4325                 END_PROFILE(SMBwriteclose);
4326                 return;
4327         }
4328         if (!CHECK_WRITE(fsp)) {
4329                 reply_doserror(req, ERRDOS,ERRbadaccess);
4330                 END_PROFILE(SMBwriteclose);
4331                 return;
4332         }
4333
4334         numtowrite = SVAL(req->inbuf,smb_vwv1);
4335         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
4336         mtime = convert_time_t_to_timespec(srv_make_unix_date3(
4337                                                    req->inbuf+smb_vwv4));
4338         data = smb_buf(req->inbuf) + 1;
4339
4340         if (numtowrite
4341             && is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)numtowrite,
4342                          (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
4343                 reply_doserror(req, ERRDOS,ERRlock);
4344                 END_PROFILE(SMBwriteclose);
4345                 return;
4346         }
4347
4348         nwritten = write_file(req,fsp,data,startpos,numtowrite);
4349
4350         set_close_write_time(fsp, mtime);
4351
4352         /*
4353          * More insanity. W2K only closes the file if writelen > 0.
4354          * JRA.
4355          */
4356
4357         if (numtowrite) {
4358                 DEBUG(3,("reply_writeclose: zero length write doesn't close file %s\n",
4359                         fsp->fsp_name ));
4360                 close_status = close_file(fsp,NORMAL_CLOSE);
4361         }
4362
4363         DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
4364                  fsp->fnum, (int)numtowrite, (int)nwritten,
4365                  conn->num_files_open));
4366
4367         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
4368                 reply_doserror(req, ERRHRD, ERRdiskfull);
4369                 END_PROFILE(SMBwriteclose);
4370                 return;
4371         }
4372
4373         if(!NT_STATUS_IS_OK(close_status)) {
4374                 reply_nterror(req, close_status);
4375                 END_PROFILE(SMBwriteclose);
4376                 return;
4377         }
4378
4379         reply_outbuf(req, 1, 0);
4380
4381         SSVAL(req->outbuf,smb_vwv0,nwritten);
4382         END_PROFILE(SMBwriteclose);
4383         return;
4384 }
4385
4386 #undef DBGC_CLASS
4387 #define DBGC_CLASS DBGC_LOCKING
4388
4389 /****************************************************************************
4390  Reply to a lock.
4391 ****************************************************************************/
4392
4393 void reply_lock(struct smb_request *req)
4394 {
4395         connection_struct *conn = req->conn;
4396         SMB_BIG_UINT count,offset;
4397         NTSTATUS status;
4398         files_struct *fsp;
4399         struct byte_range_lock *br_lck = NULL;
4400
4401         START_PROFILE(SMBlock);
4402
4403         if (req->wct < 5) {
4404                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4405                 END_PROFILE(SMBlock);
4406                 return;
4407         }
4408
4409         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4410
4411         if (!check_fsp(conn, req, fsp, &current_user)) {
4412                 END_PROFILE(SMBlock);
4413                 return;
4414         }
4415
4416         release_level_2_oplocks_on_change(fsp);
4417
4418         count = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv1);
4419         offset = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv3);
4420
4421         DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4422                  fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
4423
4424         br_lck = do_lock(smbd_messaging_context(),
4425                         fsp,
4426                         req->smbpid,
4427                         count,
4428                         offset,
4429                         WRITE_LOCK,
4430                         WINDOWS_LOCK,
4431                         False, /* Non-blocking lock. */
4432                         &status,
4433                         NULL);
4434
4435         TALLOC_FREE(br_lck);
4436
4437         if (NT_STATUS_V(status)) {
4438                 reply_nterror(req, status);
4439                 END_PROFILE(SMBlock);
4440                 return;
4441         }
4442
4443         reply_outbuf(req, 0, 0);
4444
4445         END_PROFILE(SMBlock);
4446         return;
4447 }
4448
4449 /****************************************************************************
4450  Reply to a unlock.
4451 ****************************************************************************/
4452
4453 void reply_unlock(struct smb_request *req)
4454 {
4455         connection_struct *conn = req->conn;
4456         SMB_BIG_UINT count,offset;
4457         NTSTATUS status;
4458         files_struct *fsp;
4459
4460         START_PROFILE(SMBunlock);
4461
4462         if (req->wct < 5) {
4463                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4464                 END_PROFILE(SMBunlock);
4465                 return;
4466         }
4467
4468         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4469
4470         if (!check_fsp(conn, req, fsp, &current_user)) {
4471                 END_PROFILE(SMBunlock);
4472                 return;
4473         }
4474
4475         count = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv1);
4476         offset = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv3);
4477
4478         status = do_unlock(smbd_messaging_context(),
4479                         fsp,
4480                         req->smbpid,
4481                         count,
4482                         offset,
4483                         WINDOWS_LOCK);
4484
4485         if (NT_STATUS_V(status)) {
4486                 reply_nterror(req, status);
4487                 END_PROFILE(SMBunlock);
4488                 return;
4489         }
4490
4491         DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4492                     fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
4493
4494         reply_outbuf(req, 0, 0);
4495
4496         END_PROFILE(SMBunlock);
4497         return;
4498 }
4499
4500 #undef DBGC_CLASS
4501 #define DBGC_CLASS DBGC_ALL
4502
4503 /****************************************************************************
4504  Reply to a tdis.
4505  conn POINTER CAN BE NULL HERE !
4506 ****************************************************************************/
4507
4508 void reply_tdis(struct smb_request *req)
4509 {
4510         connection_struct *conn = req->conn;
4511         START_PROFILE(SMBtdis);
4512
4513         if (!conn) {
4514                 DEBUG(4,("Invalid connection in tdis\n"));
4515                 reply_doserror(req, ERRSRV, ERRinvnid);
4516                 END_PROFILE(SMBtdis);
4517                 return;
4518         }
4519
4520         conn->used = False;
4521
4522         close_cnum(conn,req->vuid);
4523         req->conn = NULL;
4524
4525         reply_outbuf(req, 0, 0);
4526         END_PROFILE(SMBtdis);
4527         return;
4528 }
4529
4530 /****************************************************************************
4531  Reply to a echo.
4532  conn POINTER CAN BE NULL HERE !
4533 ****************************************************************************/
4534
4535 void reply_echo(struct smb_request *req)
4536 {
4537         connection_struct *conn = req->conn;
4538         int smb_reverb;
4539         int seq_num;
4540         unsigned int data_len = smb_buflen(req->inbuf);
4541
4542         START_PROFILE(SMBecho);
4543
4544         if (req->wct < 1) {
4545                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4546                 END_PROFILE(SMBecho);
4547                 return;
4548         }
4549
4550         if (data_len > BUFFER_SIZE) {
4551                 DEBUG(0,("reply_echo: data_len too large.\n"));
4552                 reply_nterror(req, NT_STATUS_INSUFFICIENT_RESOURCES);
4553                 END_PROFILE(SMBecho);
4554                 return;
4555         }
4556
4557         smb_reverb = SVAL(req->inbuf,smb_vwv0);
4558
4559         reply_outbuf(req, 1, data_len);
4560
4561         /* copy any incoming data back out */
4562         if (data_len > 0) {
4563                 memcpy(smb_buf(req->outbuf),smb_buf(req->inbuf),data_len);
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         smb_echo_count++;
4586
4587         END_PROFILE(SMBecho);
4588         return;
4589 }
4590
4591 /****************************************************************************
4592  Reply to a printopen.
4593 ****************************************************************************/
4594
4595 void reply_printopen(struct smb_request *req)
4596 {
4597         connection_struct *conn = req->conn;
4598         files_struct *fsp;
4599         NTSTATUS status;
4600
4601         START_PROFILE(SMBsplopen);
4602
4603         if (req->wct < 2) {
4604                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4605                 END_PROFILE(SMBsplopen);
4606                 return;
4607         }
4608
4609         if (!CAN_PRINT(conn)) {
4610                 reply_doserror(req, ERRDOS, ERRnoaccess);
4611                 END_PROFILE(SMBsplopen);
4612                 return;
4613         }
4614
4615         /* Open for exclusive use, write only. */
4616         status = print_fsp_open(conn, NULL, &fsp);
4617
4618         if (!NT_STATUS_IS_OK(status)) {
4619                 reply_nterror(req, status);
4620                 END_PROFILE(SMBsplopen);
4621                 return;
4622         }
4623
4624         reply_outbuf(req, 1, 0);
4625         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
4626
4627         DEBUG(3,("openprint fd=%d fnum=%d\n",
4628                  fsp->fh->fd, fsp->fnum));
4629
4630         END_PROFILE(SMBsplopen);
4631         return;
4632 }
4633
4634 /****************************************************************************
4635  Reply to a printclose.
4636 ****************************************************************************/
4637
4638 void reply_printclose(struct smb_request *req)
4639 {
4640         connection_struct *conn = req->conn;
4641         files_struct *fsp;
4642         NTSTATUS status;
4643
4644         START_PROFILE(SMBsplclose);
4645
4646         if (req->wct < 1) {
4647                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4648                 END_PROFILE(SMBsplclose);
4649                 return;
4650         }
4651
4652         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4653
4654         if (!check_fsp(conn, req, fsp, &current_user)) {
4655                 END_PROFILE(SMBsplclose);
4656                 return;
4657         }
4658
4659         if (!CAN_PRINT(conn)) {
4660                 reply_nterror(req, NT_STATUS_DOS(ERRSRV, ERRerror));
4661                 END_PROFILE(SMBsplclose);
4662                 return;
4663         }
4664
4665         DEBUG(3,("printclose fd=%d fnum=%d\n",
4666                  fsp->fh->fd,fsp->fnum));
4667
4668         status = close_file(fsp,NORMAL_CLOSE);
4669
4670         if(!NT_STATUS_IS_OK(status)) {
4671                 reply_nterror(req, status);
4672                 END_PROFILE(SMBsplclose);
4673                 return;
4674         }
4675
4676         reply_outbuf(req, 0, 0);
4677
4678         END_PROFILE(SMBsplclose);
4679         return;
4680 }
4681
4682 /****************************************************************************
4683  Reply to a printqueue.
4684 ****************************************************************************/
4685
4686 void reply_printqueue(struct smb_request *req)
4687 {
4688         connection_struct *conn = req->conn;
4689         int max_count;
4690         int start_index;
4691
4692         START_PROFILE(SMBsplretq);
4693
4694         if (req->wct < 2) {
4695                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4696                 END_PROFILE(SMBsplretq);
4697                 return;
4698         }
4699
4700         max_count = SVAL(req->inbuf,smb_vwv0);
4701         start_index = SVAL(req->inbuf,smb_vwv1);
4702
4703         /* we used to allow the client to get the cnum wrong, but that
4704            is really quite gross and only worked when there was only
4705            one printer - I think we should now only accept it if they
4706            get it right (tridge) */
4707         if (!CAN_PRINT(conn)) {
4708                 reply_doserror(req, ERRDOS, ERRnoaccess);
4709                 END_PROFILE(SMBsplretq);
4710                 return;
4711         }
4712
4713         reply_outbuf(req, 2, 3);
4714         SSVAL(req->outbuf,smb_vwv0,0);
4715         SSVAL(req->outbuf,smb_vwv1,0);
4716         SCVAL(smb_buf(req->outbuf),0,1);
4717         SSVAL(smb_buf(req->outbuf),1,0);
4718
4719         DEBUG(3,("printqueue start_index=%d max_count=%d\n",
4720                  start_index, max_count));
4721
4722         {
4723                 print_queue_struct *queue = NULL;
4724                 print_status_struct status;
4725                 int count = print_queue_status(SNUM(conn), &queue, &status);
4726                 int num_to_get = ABS(max_count);
4727                 int first = (max_count>0?start_index:start_index+max_count+1);
4728                 int i;
4729
4730                 if (first >= count)
4731                         num_to_get = 0;
4732                 else
4733                         num_to_get = MIN(num_to_get,count-first);
4734
4735
4736                 for (i=first;i<first+num_to_get;i++) {
4737                         char blob[28];
4738                         char *p = blob;
4739
4740                         srv_put_dos_date2(p,0,queue[i].time);
4741                         SCVAL(p,4,(queue[i].status==LPQ_PRINTING?2:3));
4742                         SSVAL(p,5, queue[i].job);
4743                         SIVAL(p,7,queue[i].size);
4744                         SCVAL(p,11,0);
4745                         srvstr_push(blob, req->flags2, p+12,
4746                                     queue[i].fs_user, 16, STR_ASCII);
4747
4748                         if (message_push_blob(
4749                                     &req->outbuf,
4750                                     data_blob_const(
4751                                             blob, sizeof(blob))) == -1) {
4752                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
4753                                 END_PROFILE(SMBsplretq);
4754                                 return;
4755                         }
4756                 }
4757
4758                 if (count > 0) {
4759                         SSVAL(req->outbuf,smb_vwv0,count);
4760                         SSVAL(req->outbuf,smb_vwv1,
4761                               (max_count>0?first+count:first-1));
4762                         SCVAL(smb_buf(req->outbuf),0,1);
4763                         SSVAL(smb_buf(req->outbuf),1,28*count);
4764                 }
4765
4766                 SAFE_FREE(queue);
4767
4768                 DEBUG(3,("%d entries returned in queue\n",count));
4769         }
4770
4771         END_PROFILE(SMBsplretq);
4772         return;
4773 }
4774
4775 /****************************************************************************
4776  Reply to a printwrite.
4777 ****************************************************************************/
4778
4779 void reply_printwrite(struct smb_request *req)
4780 {
4781         connection_struct *conn = req->conn;
4782         int numtowrite;
4783         char *data;
4784         files_struct *fsp;
4785
4786         START_PROFILE(SMBsplwr);
4787
4788         if (req->wct < 1) {
4789                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4790                 END_PROFILE(SMBsplwr);
4791                 return;
4792         }
4793
4794         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4795
4796         if (!check_fsp(conn, req, fsp, &current_user)) {
4797                 END_PROFILE(SMBsplwr);
4798                 return;
4799         }
4800
4801         if (!CAN_PRINT(conn)) {
4802                 reply_doserror(req, ERRDOS, ERRnoaccess);
4803                 END_PROFILE(SMBsplwr);
4804                 return;
4805         }
4806
4807         if (!CHECK_WRITE(fsp)) {
4808                 reply_doserror(req, ERRDOS, ERRbadaccess);
4809                 END_PROFILE(SMBsplwr);
4810                 return;
4811         }
4812
4813         numtowrite = SVAL(smb_buf(req->inbuf),1);
4814
4815         if (smb_buflen(req->inbuf) < numtowrite + 3) {
4816                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4817                 END_PROFILE(SMBsplwr);
4818                 return;
4819         }
4820
4821         data = smb_buf(req->inbuf) + 3;
4822
4823         if (write_file(req,fsp,data,-1,numtowrite) != numtowrite) {
4824                 reply_unixerror(req, ERRHRD, ERRdiskfull);
4825                 END_PROFILE(SMBsplwr);
4826                 return;
4827         }
4828
4829         DEBUG( 3, ( "printwrite fnum=%d num=%d\n", fsp->fnum, numtowrite ) );
4830
4831         END_PROFILE(SMBsplwr);
4832         return;
4833 }
4834
4835 /****************************************************************************
4836  Reply to a mkdir.
4837 ****************************************************************************/
4838
4839 void reply_mkdir(struct smb_request *req)
4840 {
4841         connection_struct *conn = req->conn;
4842         char *directory = NULL;
4843         NTSTATUS status;
4844         SMB_STRUCT_STAT sbuf;
4845         TALLOC_CTX *ctx = talloc_tos();
4846
4847         START_PROFILE(SMBmkdir);
4848
4849         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &directory,
4850                         smb_buf(req->inbuf) + 1, 0,
4851                         STR_TERMINATE, &status);
4852         if (!NT_STATUS_IS_OK(status)) {
4853                 reply_nterror(req, status);
4854                 END_PROFILE(SMBmkdir);
4855                 return;
4856         }
4857
4858         status = resolve_dfspath(ctx, conn,
4859                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
4860                                  directory,
4861                                  &directory);
4862         if (!NT_STATUS_IS_OK(status)) {
4863                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
4864                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
4865                                         ERRSRV, ERRbadpath);
4866                         END_PROFILE(SMBmkdir);
4867                         return;
4868                 }
4869                 reply_nterror(req, status);
4870                 END_PROFILE(SMBmkdir);
4871                 return;
4872         }
4873
4874         status = unix_convert(ctx, conn, directory, False, &directory, NULL, &sbuf);
4875         if (!NT_STATUS_IS_OK(status)) {
4876                 reply_nterror(req, status);
4877                 END_PROFILE(SMBmkdir);
4878                 return;
4879         }
4880
4881         status = check_name(conn, directory);
4882         if (!NT_STATUS_IS_OK(status)) {
4883                 reply_nterror(req, status);
4884                 END_PROFILE(SMBmkdir);
4885                 return;
4886         }
4887
4888         status = create_directory(conn, req, directory);
4889
4890         DEBUG(5, ("create_directory returned %s\n", nt_errstr(status)));
4891
4892         if (!NT_STATUS_IS_OK(status)) {
4893
4894                 if (!use_nt_status()
4895                     && NT_STATUS_EQUAL(status,
4896                                        NT_STATUS_OBJECT_NAME_COLLISION)) {
4897                         /*
4898                          * Yes, in the DOS error code case we get a
4899                          * ERRDOS:ERRnoaccess here. See BASE-SAMBA3ERROR
4900                          * samba4 torture test.
4901                          */
4902                         status = NT_STATUS_DOS(ERRDOS, ERRnoaccess);
4903                 }
4904
4905                 reply_nterror(req, status);
4906                 END_PROFILE(SMBmkdir);
4907                 return;
4908         }
4909
4910         reply_outbuf(req, 0, 0);
4911
4912         DEBUG( 3, ( "mkdir %s\n", directory ) );
4913
4914         END_PROFILE(SMBmkdir);
4915         return;
4916 }
4917
4918 /****************************************************************************
4919  Static function used by reply_rmdir to delete an entire directory
4920  tree recursively. Return True on ok, False on fail.
4921 ****************************************************************************/
4922
4923 static bool recursive_rmdir(TALLOC_CTX *ctx,
4924                         connection_struct *conn,
4925                         char *directory)
4926 {
4927         const char *dname = NULL;
4928         bool ret = True;
4929         long offset = 0;
4930         struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn, directory,
4931                                           NULL, 0);
4932
4933         if(dir_hnd == NULL)
4934                 return False;
4935
4936         while((dname = ReadDirName(dir_hnd, &offset))) {
4937                 char *fullname = NULL;
4938                 SMB_STRUCT_STAT st;
4939
4940                 if (ISDOT(dname) || ISDOTDOT(dname)) {
4941                         continue;
4942                 }
4943
4944                 if (!is_visible_file(conn, directory, dname, &st, False)) {
4945                         continue;
4946                 }
4947
4948                 /* Construct the full name. */
4949                 fullname = talloc_asprintf(ctx,
4950                                 "%s/%s",
4951                                 directory,
4952                                 dname);
4953                 if (!fullname) {
4954                         errno = ENOMEM;
4955                         ret = False;
4956                         break;
4957                 }
4958
4959                 if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
4960                         ret = False;
4961                         break;
4962                 }
4963
4964                 if(st.st_mode & S_IFDIR) {
4965                         if(!recursive_rmdir(ctx, conn, fullname)) {
4966                                 ret = False;
4967                                 break;
4968                         }
4969                         if(SMB_VFS_RMDIR(conn,fullname) != 0) {
4970                                 ret = False;
4971                                 break;
4972                         }
4973                 } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
4974                         ret = False;
4975                         break;
4976                 }
4977                 TALLOC_FREE(fullname);
4978         }
4979         TALLOC_FREE(dir_hnd);
4980         return ret;
4981 }
4982
4983 /****************************************************************************
4984  The internals of the rmdir code - called elsewhere.
4985 ****************************************************************************/
4986
4987 NTSTATUS rmdir_internals(TALLOC_CTX *ctx,
4988                         connection_struct *conn,
4989                         const char *directory)
4990 {
4991         int ret;
4992         SMB_STRUCT_STAT st;
4993
4994         /* Might be a symlink. */
4995         if(SMB_VFS_LSTAT(conn, directory, &st) != 0) {
4996                 return map_nt_error_from_unix(errno);
4997         }
4998
4999         if (S_ISLNK(st.st_mode)) {
5000                 /* Is what it points to a directory ? */
5001                 if(SMB_VFS_STAT(conn, directory, &st) != 0) {
5002                         return map_nt_error_from_unix(errno);
5003                 }
5004                 if (!(S_ISDIR(st.st_mode))) {
5005                         return NT_STATUS_NOT_A_DIRECTORY;
5006                 }
5007                 ret = SMB_VFS_UNLINK(conn,directory);
5008         } else {
5009                 ret = SMB_VFS_RMDIR(conn,directory);
5010         }
5011         if (ret == 0) {
5012                 notify_fname(conn, NOTIFY_ACTION_REMOVED,
5013                              FILE_NOTIFY_CHANGE_DIR_NAME,
5014                              directory);
5015                 return NT_STATUS_OK;
5016         }
5017
5018         if(((errno == ENOTEMPTY)||(errno == EEXIST)) && lp_veto_files(SNUM(conn))) {
5019                 /*
5020                  * Check to see if the only thing in this directory are
5021                  * vetoed files/directories. If so then delete them and
5022                  * retry. If we fail to delete any of them (and we *don't*
5023                  * do a recursive delete) then fail the rmdir.
5024                  */
5025                 const char *dname;
5026                 long dirpos = 0;
5027                 struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn,
5028                                                   directory, NULL, 0);
5029
5030                 if(dir_hnd == NULL) {
5031                         errno = ENOTEMPTY;
5032                         goto err;
5033                 }
5034
5035                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
5036                         if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0))
5037                                 continue;
5038                         if (!is_visible_file(conn, directory, dname, &st, False))
5039                                 continue;
5040                         if(!IS_VETO_PATH(conn, dname)) {
5041                                 TALLOC_FREE(dir_hnd);
5042                                 errno = ENOTEMPTY;
5043                                 goto err;
5044                         }
5045                 }
5046
5047                 /* We only have veto files/directories. Recursive delete. */
5048
5049                 RewindDir(dir_hnd,&dirpos);
5050                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
5051                         char *fullname = NULL;
5052
5053                         if (ISDOT(dname) || ISDOTDOT(dname)) {
5054                                 continue;
5055                         }
5056                         if (!is_visible_file(conn, directory, dname, &st, False)) {
5057                                 continue;
5058                         }
5059
5060                         fullname = talloc_asprintf(ctx,
5061                                         "%s/%s",
5062                                         directory,
5063                                         dname);
5064
5065                         if(!fullname) {
5066                                 errno = ENOMEM;
5067                                 break;
5068                         }
5069
5070                         if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
5071                                 break;
5072                         }
5073                         if(st.st_mode & S_IFDIR) {
5074                                 if(lp_recursive_veto_delete(SNUM(conn))) {
5075                                         if(!recursive_rmdir(ctx, conn, fullname))
5076                                                 break;
5077                                 }
5078                                 if(SMB_VFS_RMDIR(conn,fullname) != 0) {
5079                                         break;
5080                                 }
5081                         } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
5082                                 break;
5083                         }
5084                         TALLOC_FREE(fullname);
5085                 }
5086                 TALLOC_FREE(dir_hnd);
5087                 /* Retry the rmdir */
5088                 ret = SMB_VFS_RMDIR(conn,directory);
5089         }
5090
5091   err:
5092
5093         if (ret != 0) {
5094                 DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
5095                          "%s\n", directory,strerror(errno)));
5096                 return map_nt_error_from_unix(errno);
5097         }
5098
5099         notify_fname(conn, NOTIFY_ACTION_REMOVED,
5100                      FILE_NOTIFY_CHANGE_DIR_NAME,
5101                      directory);
5102
5103         return NT_STATUS_OK;
5104 }
5105
5106 /****************************************************************************
5107  Reply to a rmdir.
5108 ****************************************************************************/
5109
5110 void reply_rmdir(struct smb_request *req)
5111 {
5112         connection_struct *conn = req->conn;
5113         char *directory = NULL;
5114         SMB_STRUCT_STAT sbuf;
5115         NTSTATUS status;
5116         TALLOC_CTX *ctx = talloc_tos();
5117
5118         START_PROFILE(SMBrmdir);
5119
5120         srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &directory,
5121                         smb_buf(req->inbuf) + 1, 0,
5122                         STR_TERMINATE, &status);
5123         if (!NT_STATUS_IS_OK(status)) {
5124                 reply_nterror(req, status);
5125                 END_PROFILE(SMBrmdir);
5126                 return;
5127         }
5128
5129         status = resolve_dfspath(ctx, conn,
5130                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
5131                                  directory,
5132                                  &directory);
5133         if (!NT_STATUS_IS_OK(status)) {
5134                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5135                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5136                                         ERRSRV, ERRbadpath);
5137                         END_PROFILE(SMBrmdir);
5138                         return;
5139                 }
5140                 reply_nterror(req, status);
5141                 END_PROFILE(SMBrmdir);
5142                 return;
5143         }
5144
5145         status = unix_convert(ctx, conn, directory, False, &directory,
5146                         NULL, &sbuf);
5147         if (!NT_STATUS_IS_OK(status)) {
5148                 reply_nterror(req, status);
5149                 END_PROFILE(SMBrmdir);
5150                 return;
5151         }
5152
5153         status = check_name(conn, directory);
5154         if (!NT_STATUS_IS_OK(status)) {
5155                 reply_nterror(req, status);
5156                 END_PROFILE(SMBrmdir);
5157                 return;
5158         }
5159
5160         dptr_closepath(directory, req->smbpid);
5161         status = rmdir_internals(ctx, conn, directory);
5162         if (!NT_STATUS_IS_OK(status)) {
5163                 reply_nterror(req, status);
5164                 END_PROFILE(SMBrmdir);
5165                 return;
5166         }
5167
5168         reply_outbuf(req, 0, 0);
5169
5170         DEBUG( 3, ( "rmdir %s\n", directory ) );
5171
5172         END_PROFILE(SMBrmdir);
5173         return;
5174 }
5175
5176 /*******************************************************************
5177  Resolve wildcards in a filename rename.
5178 ********************************************************************/
5179
5180 static bool resolve_wildcards(TALLOC_CTX *ctx,
5181                                 const char *name1,
5182                                 const char *name2,
5183                                 char **pp_newname)
5184 {
5185         char *name2_copy = NULL;
5186         char *root1 = NULL;
5187         char *root2 = NULL;
5188         char *ext1 = NULL;
5189         char *ext2 = NULL;
5190         char *p,*p2, *pname1, *pname2;
5191
5192         name2_copy = talloc_strdup(ctx, name2);
5193         if (!name2_copy) {
5194                 return False;
5195         }
5196
5197         pname1 = strrchr_m(name1,'/');
5198         pname2 = strrchr_m(name2_copy,'/');
5199
5200         if (!pname1 || !pname2) {
5201                 return False;
5202         }
5203
5204         /* Truncate the copy of name2 at the last '/' */
5205         *pname2 = '\0';
5206
5207         /* Now go past the '/' */
5208         pname1++;
5209         pname2++;
5210
5211         root1 = talloc_strdup(ctx, pname1);
5212         root2 = talloc_strdup(ctx, pname2);
5213
5214         if (!root1 || !root2) {
5215                 return False;
5216         }
5217
5218         p = strrchr_m(root1,'.');
5219         if (p) {
5220                 *p = 0;
5221                 ext1 = talloc_strdup(ctx, p+1);
5222         } else {
5223                 ext1 = talloc_strdup(ctx, "");
5224         }
5225         p = strrchr_m(root2,'.');
5226         if (p) {
5227                 *p = 0;
5228                 ext2 = talloc_strdup(ctx, p+1);
5229         } else {
5230                 ext2 = talloc_strdup(ctx, "");
5231         }
5232
5233         if (!ext1 || !ext2) {
5234                 return False;
5235         }
5236
5237         p = root1;
5238         p2 = root2;
5239         while (*p2) {
5240                 if (*p2 == '?') {
5241                         /* Hmmm. Should this be mb-aware ? */
5242                         *p2 = *p;
5243                         p2++;
5244                 } else if (*p2 == '*') {
5245                         *p2 = '\0';
5246                         root2 = talloc_asprintf(ctx, "%s%s",
5247                                                 root2,
5248                                                 p);
5249                         if (!root2) {
5250                                 return False;
5251                         }
5252                         break;
5253                 } else {
5254                         p2++;
5255                 }
5256                 if (*p) {
5257                         p++;
5258                 }
5259         }
5260
5261         p = ext1;
5262         p2 = ext2;
5263         while (*p2) {
5264                 if (*p2 == '?') {
5265                         /* Hmmm. Should this be mb-aware ? */
5266                         *p2 = *p;
5267                         p2++;
5268                 } else if (*p2 == '*') {
5269                         *p2 = '\0';
5270                         ext2 = talloc_asprintf(ctx, "%s%s",
5271                                                 ext2,
5272                                                 p);
5273                         if (!ext2) {
5274                                 return False;
5275                         }
5276                         break;
5277                 } else {
5278                         p2++;
5279                 }
5280                 if (*p) {
5281                         p++;
5282                 }
5283         }
5284
5285         if (*ext2) {
5286                 *pp_newname = talloc_asprintf(ctx, "%s/%s.%s",
5287                                 name2_copy,
5288                                 root2,
5289                                 ext2);
5290         } else {
5291                 *pp_newname = talloc_asprintf(ctx, "%s/%s",
5292                                 name2_copy,
5293                                 root2);
5294         }
5295
5296         if (!*pp_newname) {
5297                 return False;
5298         }
5299
5300         return True;
5301 }
5302
5303 /****************************************************************************
5304  Ensure open files have their names updated. Updated to notify other smbd's
5305  asynchronously.
5306 ****************************************************************************/
5307
5308 static void rename_open_files(connection_struct *conn,
5309                               struct share_mode_lock *lck,
5310                               const char *newname)
5311 {
5312         files_struct *fsp;
5313         bool did_rename = False;
5314
5315         for(fsp = file_find_di_first(lck->id); fsp;
5316             fsp = file_find_di_next(fsp)) {
5317                 /* fsp_name is a relative path under the fsp. To change this for other
5318                    sharepaths we need to manipulate relative paths. */
5319                 /* TODO - create the absolute path and manipulate the newname
5320                    relative to the sharepath. */
5321                 if (!strequal(fsp->conn->connectpath, conn->connectpath)) {
5322                         continue;
5323                 }
5324                 DEBUG(10,("rename_open_files: renaming file fnum %d (file_id %s) from %s -> %s\n",
5325                           fsp->fnum, file_id_string_tos(&fsp->file_id),
5326                         fsp->fsp_name, newname ));
5327                 string_set(&fsp->fsp_name, newname);
5328                 did_rename = True;
5329         }
5330
5331         if (!did_rename) {
5332                 DEBUG(10,("rename_open_files: no open files on file_id %s for %s\n",
5333                           file_id_string_tos(&lck->id), newname ));
5334         }
5335
5336         /* Send messages to all smbd's (not ourself) that the name has changed. */
5337         rename_share_filename(smbd_messaging_context(), lck, conn->connectpath,
5338                               newname);
5339 }
5340
5341 /****************************************************************************
5342  We need to check if the source path is a parent directory of the destination
5343  (ie. a rename of /foo/bar/baz -> /foo/bar/baz/bibble/bobble. If so we must
5344  refuse the rename with a sharing violation. Under UNIX the above call can
5345  *succeed* if /foo/bar/baz is a symlink to another area in the share. We
5346  probably need to check that the client is a Windows one before disallowing
5347  this as a UNIX client (one with UNIX extensions) can know the source is a
5348  symlink and make this decision intelligently. Found by an excellent bug
5349  report from <AndyLiebman@aol.com>.
5350 ****************************************************************************/
5351
5352 static bool rename_path_prefix_equal(const char *src, const char *dest)
5353 {
5354         const char *psrc = src;
5355         const char *pdst = dest;
5356         size_t slen;
5357
5358         if (psrc[0] == '.' && psrc[1] == '/') {
5359                 psrc += 2;
5360         }
5361         if (pdst[0] == '.' && pdst[1] == '/') {
5362                 pdst += 2;
5363         }
5364         if ((slen = strlen(psrc)) > strlen(pdst)) {
5365                 return False;
5366         }
5367         return ((memcmp(psrc, pdst, slen) == 0) && pdst[slen] == '/');
5368 }
5369
5370 /*
5371  * Do the notify calls from a rename
5372  */
5373
5374 static void notify_rename(connection_struct *conn, bool is_dir,
5375                           const char *oldpath, const char *newpath)
5376 {
5377         char *olddir, *newdir;
5378         const char *oldname, *newname;
5379         uint32 mask;
5380
5381         mask = is_dir ? FILE_NOTIFY_CHANGE_DIR_NAME
5382                 : FILE_NOTIFY_CHANGE_FILE_NAME;
5383
5384         if (!parent_dirname_talloc(NULL, oldpath, &olddir, &oldname)
5385             || !parent_dirname_talloc(NULL, newpath, &newdir, &newname)) {
5386                 TALLOC_FREE(olddir);
5387                 return;
5388         }
5389
5390         if (strcmp(olddir, newdir) == 0) {
5391                 notify_fname(conn, NOTIFY_ACTION_OLD_NAME, mask, oldpath);
5392                 notify_fname(conn, NOTIFY_ACTION_NEW_NAME, mask, newpath);
5393         }
5394         else {
5395                 notify_fname(conn, NOTIFY_ACTION_REMOVED, mask, oldpath);
5396                 notify_fname(conn, NOTIFY_ACTION_ADDED, mask, newpath);
5397         }
5398         TALLOC_FREE(olddir);
5399         TALLOC_FREE(newdir);
5400
5401         /* this is a strange one. w2k3 gives an additional event for
5402            CHANGE_ATTRIBUTES and CHANGE_CREATION on the new file when renaming
5403            files, but not directories */
5404         if (!is_dir) {
5405                 notify_fname(conn, NOTIFY_ACTION_MODIFIED,
5406                              FILE_NOTIFY_CHANGE_ATTRIBUTES
5407                              |FILE_NOTIFY_CHANGE_CREATION,
5408                              newpath);
5409         }
5410 }
5411
5412 /****************************************************************************
5413  Rename an open file - given an fsp.
5414 ****************************************************************************/
5415
5416 NTSTATUS rename_internals_fsp(connection_struct *conn,
5417                         files_struct *fsp,
5418                         char *newname,
5419                         const char *newname_last_component,
5420                         uint32 attrs,
5421                         bool replace_if_exists)
5422 {
5423         TALLOC_CTX *ctx = talloc_tos();
5424         SMB_STRUCT_STAT sbuf, sbuf1;
5425         NTSTATUS status = NT_STATUS_OK;
5426         struct share_mode_lock *lck = NULL;
5427         bool dst_exists;
5428
5429         ZERO_STRUCT(sbuf);
5430
5431         status = check_name(conn, newname);
5432         if (!NT_STATUS_IS_OK(status)) {
5433                 return status;
5434         }
5435
5436         /* Ensure newname contains a '/' */
5437         if(strrchr_m(newname,'/') == 0) {
5438                 newname = talloc_asprintf(ctx,
5439                                         "./%s",
5440                                         newname);
5441                 if (!newname) {
5442                         return NT_STATUS_NO_MEMORY;
5443                 }
5444         }
5445
5446         /*
5447          * Check for special case with case preserving and not
5448          * case sensitive. If the old last component differs from the original
5449          * last component only by case, then we should allow
5450          * the rename (user is trying to change the case of the
5451          * filename).
5452          */
5453
5454         if((conn->case_sensitive == False) && (conn->case_preserve == True) &&
5455                         strequal(newname, fsp->fsp_name)) {
5456                 char *p;
5457                 char *newname_modified_last_component = NULL;
5458
5459                 /*
5460                  * Get the last component of the modified name.
5461                  * Note that we guarantee that newname contains a '/'
5462                  * character above.
5463                  */
5464                 p = strrchr_m(newname,'/');
5465                 newname_modified_last_component = talloc_strdup(ctx,
5466                                                 p+1);
5467                 if (!newname_modified_last_component) {
5468                         return NT_STATUS_NO_MEMORY;
5469                 }
5470
5471                 if(strcsequal(newname_modified_last_component,
5472                               newname_last_component) == False) {
5473                         /*
5474                          * Replace the modified last component with
5475                          * the original.
5476                          */
5477                         *p = '\0'; /* Truncate at the '/' */
5478                         newname = talloc_asprintf(ctx,
5479                                         "%s/%s",
5480                                         newname,
5481                                         newname_last_component);
5482                 }
5483         }
5484
5485         /*
5486          * If the src and dest names are identical - including case,
5487          * don't do the rename, just return success.
5488          */
5489
5490         if (strcsequal(fsp->fsp_name, newname)) {
5491                 DEBUG(3,("rename_internals_fsp: identical names in rename %s - returning success\n",
5492                         newname));
5493                 return NT_STATUS_OK;
5494         }
5495
5496         /*
5497          * Have vfs_object_exist also fill sbuf1
5498          */
5499         dst_exists = vfs_object_exist(conn, newname, &sbuf1);
5500
5501         if(!replace_if_exists && dst_exists) {
5502                 DEBUG(3,("rename_internals_fsp: dest exists doing rename %s -> %s\n",
5503                         fsp->fsp_name,newname));
5504                 return NT_STATUS_OBJECT_NAME_COLLISION;
5505         }
5506
5507         if (dst_exists) {
5508                 struct file_id fileid = vfs_file_id_from_sbuf(conn, &sbuf1);
5509                 files_struct *dst_fsp = file_find_di_first(fileid);
5510                 if (dst_fsp) {
5511                         DEBUG(3, ("rename_internals_fsp: Target file open\n"));
5512                         return NT_STATUS_ACCESS_DENIED;
5513                 }
5514         }
5515
5516         /* Ensure we have a valid stat struct for the source. */
5517         if (fsp->fh->fd != -1) {
5518                 if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
5519                         return map_nt_error_from_unix(errno);
5520                 }
5521         } else {
5522                 if (SMB_VFS_STAT(conn,fsp->fsp_name,&sbuf) == -1) {
5523                         return map_nt_error_from_unix(errno);
5524                 }
5525         }
5526
5527         status = can_rename(conn, fsp, attrs, &sbuf);
5528
5529         if (!NT_STATUS_IS_OK(status)) {
5530                 DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5531                         nt_errstr(status), fsp->fsp_name,newname));
5532                 if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION))
5533                         status = NT_STATUS_ACCESS_DENIED;
5534                 return status;
5535         }
5536
5537         if (rename_path_prefix_equal(fsp->fsp_name, newname)) {
5538                 return NT_STATUS_ACCESS_DENIED;
5539         }
5540
5541         lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
5542                                   NULL);
5543
5544         /*
5545          * We have the file open ourselves, so not being able to get the
5546          * corresponding share mode lock is a fatal error.
5547          */
5548
5549         SMB_ASSERT(lck != NULL);
5550
5551         if(SMB_VFS_RENAME(conn,fsp->fsp_name, newname) == 0) {
5552                 uint32 create_options = fsp->fh->private_options;
5553
5554                 DEBUG(3,("rename_internals_fsp: succeeded doing rename on %s -> %s\n",
5555                         fsp->fsp_name,newname));
5556
5557                 rename_open_files(conn, lck, newname);
5558
5559                 notify_rename(conn, fsp->is_directory, fsp->fsp_name, newname);
5560
5561                 /*
5562                  * A rename acts as a new file create w.r.t. allowing an initial delete
5563                  * on close, probably because in Windows there is a new handle to the
5564                  * new file. If initial delete on close was requested but not
5565                  * originally set, we need to set it here. This is probably not 100% correct,
5566                  * but will work for the CIFSFS client which in non-posix mode
5567                  * depends on these semantics. JRA.
5568                  */
5569
5570                 set_allow_initial_delete_on_close(lck, fsp, True);
5571
5572                 if (create_options & FILE_DELETE_ON_CLOSE) {
5573                         status = can_set_delete_on_close(fsp, True, 0);
5574
5575                         if (NT_STATUS_IS_OK(status)) {
5576                                 /* Note that here we set the *inital* delete on close flag,
5577                                  * not the regular one. The magic gets handled in close. */
5578                                 fsp->initial_delete_on_close = True;
5579                         }
5580                 }
5581                 TALLOC_FREE(lck);
5582                 return NT_STATUS_OK;
5583         }
5584
5585         TALLOC_FREE(lck);
5586
5587         if (errno == ENOTDIR || errno == EISDIR) {
5588                 status = NT_STATUS_OBJECT_NAME_COLLISION;
5589         } else {
5590                 status = map_nt_error_from_unix(errno);
5591         }
5592
5593         DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5594                 nt_errstr(status), fsp->fsp_name,newname));
5595
5596         return status;
5597 }
5598
5599 /****************************************************************************
5600  The guts of the rename command, split out so it may be called by the NT SMB
5601  code.
5602 ****************************************************************************/
5603
5604 NTSTATUS rename_internals(TALLOC_CTX *ctx,
5605                         connection_struct *conn,
5606                         struct smb_request *req,
5607                         const char *name_in,
5608                         const char *newname_in,
5609                         uint32 attrs,
5610                         bool replace_if_exists,
5611                         bool src_has_wild,
5612                         bool dest_has_wild,
5613                         uint32_t access_mask)
5614 {
5615         char *directory = NULL;
5616         char *mask = NULL;
5617         char *last_component_src = NULL;
5618         char *last_component_dest = NULL;
5619         char *name = NULL;
5620         char *newname = NULL;
5621         char *p;
5622         int count=0;
5623         NTSTATUS status = NT_STATUS_OK;
5624         SMB_STRUCT_STAT sbuf1, sbuf2;
5625         struct smb_Dir *dir_hnd = NULL;
5626         const char *dname;
5627         long offset = 0;
5628
5629         ZERO_STRUCT(sbuf1);
5630         ZERO_STRUCT(sbuf2);
5631
5632         status = unix_convert(ctx, conn, name_in, src_has_wild, &name,
5633                         &last_component_src, &sbuf1);
5634         if (!NT_STATUS_IS_OK(status)) {
5635                 return status;
5636         }
5637
5638         status = unix_convert(ctx, conn, newname_in, dest_has_wild, &newname,
5639                         &last_component_dest, &sbuf2);
5640         if (!NT_STATUS_IS_OK(status)) {
5641                 return status;
5642         }
5643
5644         /*
5645          * Split the old name into directory and last component
5646          * strings. Note that unix_convert may have stripped off a
5647          * leading ./ from both name and newname if the rename is
5648          * at the root of the share. We need to make sure either both
5649          * name and newname contain a / character or neither of them do
5650          * as this is checked in resolve_wildcards().
5651          */
5652
5653         p = strrchr_m(name,'/');
5654         if (!p) {
5655                 directory = talloc_strdup(ctx, ".");
5656                 if (!directory) {
5657                         return NT_STATUS_NO_MEMORY;
5658                 }
5659                 mask = name;
5660         } else {
5661                 *p = 0;
5662                 directory = talloc_strdup(ctx, name);
5663                 if (!directory) {
5664                         return NT_STATUS_NO_MEMORY;
5665                 }
5666                 mask = p+1;
5667                 *p = '/'; /* Replace needed for exceptional test below. */
5668         }
5669
5670         /*
5671          * We should only check the mangled cache
5672          * here if unix_convert failed. This means
5673          * that the path in 'mask' doesn't exist
5674          * on the file system and so we need to look
5675          * for a possible mangle. This patch from
5676          * Tine Smukavec <valentin.smukavec@hermes.si>.
5677          */
5678
5679         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
5680                 char *new_mask = NULL;
5681                 mangle_lookup_name_from_8_3(ctx,
5682                                         mask,
5683                                         &new_mask,
5684                                         conn->params );
5685                 if (new_mask) {
5686                         mask = new_mask;
5687                 }
5688         }
5689
5690         if (!src_has_wild) {
5691                 files_struct *fsp;
5692
5693                 /*
5694                  * No wildcards - just process the one file.
5695                  */
5696                 bool is_short_name = mangle_is_8_3(name, True, conn->params);
5697
5698                 /* Add a terminating '/' to the directory name. */
5699                 directory = talloc_asprintf_append(directory,
5700                                 "/%s",
5701                                 mask);
5702                 if (!directory) {
5703                         return NT_STATUS_NO_MEMORY;
5704                 }
5705
5706                 /* Ensure newname contains a '/' also */
5707                 if(strrchr_m(newname,'/') == 0) {
5708                         newname = talloc_asprintf(ctx,
5709                                                 "./%s",
5710                                                 newname);
5711                         if (!newname) {
5712                                 return NT_STATUS_NO_MEMORY;
5713                         }
5714                 }
5715
5716                 DEBUG(3, ("rename_internals: case_sensitive = %d, "
5717                           "case_preserve = %d, short case preserve = %d, "
5718                           "directory = %s, newname = %s, "
5719                           "last_component_dest = %s, is_8_3 = %d\n",
5720                           conn->case_sensitive, conn->case_preserve,
5721                           conn->short_case_preserve, directory,
5722                           newname, last_component_dest, is_short_name));
5723
5724                 /* The dest name still may have wildcards. */
5725                 if (dest_has_wild) {
5726                         char *mod_newname = NULL;
5727                         if (!resolve_wildcards(ctx,
5728                                         directory,newname,&mod_newname)) {
5729                                 DEBUG(6, ("rename_internals: resolve_wildcards "
5730                                         "%s %s failed\n",
5731                                         directory,
5732                                         newname));
5733                                 return NT_STATUS_NO_MEMORY;
5734                         }
5735                         newname = mod_newname;
5736                 }
5737
5738                 ZERO_STRUCT(sbuf1);
5739                 SMB_VFS_STAT(conn, directory, &sbuf1);
5740
5741                 status = S_ISDIR(sbuf1.st_mode) ?
5742                         open_directory(conn, req, directory, &sbuf1,
5743                                        access_mask,
5744                                        FILE_SHARE_READ|FILE_SHARE_WRITE,
5745                                        FILE_OPEN, 0, 0, NULL,
5746                                        &fsp)
5747                         : open_file_ntcreate(conn, req, directory, &sbuf1,
5748                                              access_mask,
5749                                              FILE_SHARE_READ|FILE_SHARE_WRITE,
5750                                              FILE_OPEN, 0, 0, 0, NULL,
5751                                              &fsp);
5752
5753                 if (!NT_STATUS_IS_OK(status)) {
5754                         DEBUG(3, ("Could not open rename source %s: %s\n",
5755                                   directory, nt_errstr(status)));
5756                         return status;
5757                 }
5758
5759                 status = rename_internals_fsp(conn, fsp, newname,
5760                                               last_component_dest,
5761                                               attrs, replace_if_exists);
5762
5763                 close_file(fsp, NORMAL_CLOSE);
5764
5765                 DEBUG(3, ("rename_internals: Error %s rename %s -> %s\n",
5766                           nt_errstr(status), directory,newname));
5767
5768                 return status;
5769         }
5770
5771         /*
5772          * Wildcards - process each file that matches.
5773          */
5774         if (strequal(mask,"????????.???")) {
5775                 mask[0] = '*';
5776                 mask[1] = '\0';
5777         }
5778
5779         status = check_name(conn, directory);
5780         if (!NT_STATUS_IS_OK(status)) {
5781                 return status;
5782         }
5783
5784         dir_hnd = OpenDir(talloc_tos(), conn, directory, mask, attrs);
5785         if (dir_hnd == NULL) {
5786                 return map_nt_error_from_unix(errno);
5787         }
5788
5789         status = NT_STATUS_NO_SUCH_FILE;
5790         /*
5791          * Was status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
5792          * - gentest fix. JRA
5793          */
5794
5795         while ((dname = ReadDirName(dir_hnd, &offset))) {
5796                 files_struct *fsp = NULL;
5797                 char *fname = NULL;
5798                 char *destname = NULL;
5799                 bool sysdir_entry = False;
5800
5801                 /* Quick check for "." and ".." */
5802                 if (ISDOT(dname) || ISDOTDOT(dname)) {
5803                         if (attrs & aDIR) {
5804                                 sysdir_entry = True;
5805                         } else {
5806                                 continue;
5807                         }
5808                 }
5809
5810                 if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
5811                         continue;
5812                 }
5813
5814                 if(!mask_match(dname, mask, conn->case_sensitive)) {
5815                         continue;
5816                 }
5817
5818                 if (sysdir_entry) {
5819                         status = NT_STATUS_OBJECT_NAME_INVALID;
5820                         break;
5821                 }
5822
5823                 fname = talloc_asprintf(ctx,
5824                                 "%s/%s",
5825                                 directory,
5826                                 dname);
5827                 if (!fname) {
5828                         return NT_STATUS_NO_MEMORY;
5829                 }
5830
5831                 if (!resolve_wildcards(ctx,
5832                                 fname,newname,&destname)) {
5833                         DEBUG(6, ("resolve_wildcards %s %s failed\n",
5834                                   fname, destname));
5835                         TALLOC_FREE(fname);
5836                         continue;
5837                 }
5838                 if (!destname) {
5839                         return NT_STATUS_NO_MEMORY;
5840                 }
5841
5842                 ZERO_STRUCT(sbuf1);
5843                 SMB_VFS_STAT(conn, fname, &sbuf1);
5844
5845                 status = S_ISDIR(sbuf1.st_mode) ?
5846                         open_directory(conn, req, fname, &sbuf1,
5847                                        access_mask,
5848                                        FILE_SHARE_READ|FILE_SHARE_WRITE,
5849                                        FILE_OPEN, 0, 0, NULL,
5850                                        &fsp)
5851                         : open_file_ntcreate(conn, req, fname, &sbuf1,
5852                                              access_mask,
5853                                              FILE_SHARE_READ|FILE_SHARE_WRITE,
5854                                              FILE_OPEN, 0, 0, 0, NULL,
5855                                              &fsp);
5856
5857                 if (!NT_STATUS_IS_OK(status)) {
5858                         DEBUG(3,("rename_internals: open_file_ntcreate "
5859                                  "returned %s rename %s -> %s\n",
5860                                  nt_errstr(status), directory, newname));
5861                         break;
5862                 }
5863
5864                 status = rename_internals_fsp(conn, fsp, destname, dname,
5865                                               attrs, replace_if_exists);
5866
5867                 close_file(fsp, NORMAL_CLOSE);
5868
5869                 if (!NT_STATUS_IS_OK(status)) {
5870                         DEBUG(3, ("rename_internals_fsp returned %s for "
5871                                   "rename %s -> %s\n", nt_errstr(status),
5872                                   directory, newname));
5873                         break;
5874                 }
5875
5876                 count++;
5877
5878                 DEBUG(3,("rename_internals: doing rename on %s -> "
5879                          "%s\n",fname,destname));
5880
5881                 TALLOC_FREE(fname);
5882                 TALLOC_FREE(destname);
5883         }
5884         TALLOC_FREE(dir_hnd);
5885
5886         if (count == 0 && NT_STATUS_IS_OK(status) && errno != 0) {
5887                 status = map_nt_error_from_unix(errno);
5888         }
5889
5890         return status;
5891 }
5892
5893 /****************************************************************************
5894  Reply to a mv.
5895 ****************************************************************************/
5896
5897 void reply_mv(struct smb_request *req)
5898 {
5899         connection_struct *conn = req->conn;
5900         char *name = NULL;
5901         char *newname = NULL;
5902         char *p;
5903         uint32 attrs;
5904         NTSTATUS status;
5905         bool src_has_wcard = False;
5906         bool dest_has_wcard = False;
5907         TALLOC_CTX *ctx = talloc_tos();
5908
5909         START_PROFILE(SMBmv);
5910
5911         if (req->wct < 1) {
5912                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5913                 END_PROFILE(SMBmv);
5914                 return;
5915         }
5916
5917         attrs = SVAL(req->inbuf,smb_vwv0);
5918
5919         p = smb_buf(req->inbuf) + 1;
5920         p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &name, p,
5921                                    0, STR_TERMINATE, &status,
5922                                    &src_has_wcard);
5923         if (!NT_STATUS_IS_OK(status)) {
5924                 reply_nterror(req, status);
5925                 END_PROFILE(SMBmv);
5926                 return;
5927         }
5928         p++;
5929         p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
5930                                    0, STR_TERMINATE, &status,
5931                                    &dest_has_wcard);
5932         if (!NT_STATUS_IS_OK(status)) {
5933                 reply_nterror(req, status);
5934                 END_PROFILE(SMBmv);
5935                 return;
5936         }
5937
5938         status = resolve_dfspath_wcard(ctx, conn,
5939                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
5940                                        name,
5941                                        &name,
5942                                        &src_has_wcard);
5943         if (!NT_STATUS_IS_OK(status)) {
5944                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5945                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5946                                         ERRSRV, ERRbadpath);
5947                         END_PROFILE(SMBmv);
5948                         return;
5949                 }
5950                 reply_nterror(req, status);
5951                 END_PROFILE(SMBmv);
5952                 return;
5953         }
5954
5955         status = resolve_dfspath_wcard(ctx, conn,
5956                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
5957                                        newname,
5958                                        &newname,
5959                                        &dest_has_wcard);
5960         if (!NT_STATUS_IS_OK(status)) {
5961                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5962                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5963                                         ERRSRV, ERRbadpath);
5964                         END_PROFILE(SMBmv);
5965                         return;
5966                 }
5967                 reply_nterror(req, status);
5968                 END_PROFILE(SMBmv);
5969                 return;
5970         }
5971
5972         DEBUG(3,("reply_mv : %s -> %s\n",name,newname));
5973
5974         status = rename_internals(ctx, conn, req, name, newname, attrs, False,
5975                                   src_has_wcard, dest_has_wcard, DELETE_ACCESS);
5976         if (!NT_STATUS_IS_OK(status)) {
5977                 if (open_was_deferred(req->mid)) {
5978                         /* We have re-scheduled this call. */
5979                         END_PROFILE(SMBmv);
5980                         return;
5981                 }
5982                 reply_nterror(req, status);
5983                 END_PROFILE(SMBmv);
5984                 return;
5985         }
5986
5987         reply_outbuf(req, 0, 0);
5988
5989         END_PROFILE(SMBmv);
5990         return;
5991 }
5992
5993 /*******************************************************************
5994  Copy a file as part of a reply_copy.
5995 ******************************************************************/
5996
5997 /*
5998  * TODO: check error codes on all callers
5999  */
6000
6001 NTSTATUS copy_file(TALLOC_CTX *ctx,
6002                         connection_struct *conn,
6003                         const char *src,
6004                         const char *dest1,
6005                         int ofun,
6006                         int count,
6007                         bool target_is_directory)
6008 {
6009         SMB_STRUCT_STAT src_sbuf, sbuf2;
6010         SMB_OFF_T ret=-1;
6011         files_struct *fsp1,*fsp2;
6012         char *dest = NULL;
6013         uint32 dosattrs;
6014         uint32 new_create_disposition;
6015         NTSTATUS status;
6016
6017         dest = talloc_strdup(ctx, dest1);
6018         if (!dest) {
6019                 return NT_STATUS_NO_MEMORY;
6020         }
6021         if (target_is_directory) {
6022                 const char *p = strrchr_m(src,'/');
6023                 if (p) {
6024                         p++;
6025                 } else {
6026                         p = src;
6027                 }
6028                 dest = talloc_asprintf_append(dest,
6029                                 "/%s",
6030                                 p);
6031                 if (!dest) {
6032                         return NT_STATUS_NO_MEMORY;
6033                 }
6034         }
6035
6036         if (!vfs_file_exist(conn,src,&src_sbuf)) {
6037                 TALLOC_FREE(dest);
6038                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
6039         }
6040
6041         if (!target_is_directory && count) {
6042                 new_create_disposition = FILE_OPEN;
6043         } else {
6044                 if (!map_open_params_to_ntcreate(dest1,0,ofun,
6045                                 NULL, NULL, &new_create_disposition, NULL)) {
6046                         TALLOC_FREE(dest);
6047                         return NT_STATUS_INVALID_PARAMETER;
6048                 }
6049         }
6050
6051         status = open_file_ntcreate(conn, NULL, src, &src_sbuf,
6052                         FILE_GENERIC_READ,
6053                         FILE_SHARE_READ|FILE_SHARE_WRITE,
6054                         FILE_OPEN,
6055                         0,
6056                         FILE_ATTRIBUTE_NORMAL,
6057                         INTERNAL_OPEN_ONLY,
6058                         NULL, &fsp1);
6059
6060         if (!NT_STATUS_IS_OK(status)) {
6061                 TALLOC_FREE(dest);
6062                 return status;
6063         }
6064
6065         dosattrs = dos_mode(conn, src, &src_sbuf);
6066         if (SMB_VFS_STAT(conn,dest,&sbuf2) == -1) {
6067                 ZERO_STRUCTP(&sbuf2);
6068         }
6069
6070         status = open_file_ntcreate(conn, NULL, dest, &sbuf2,
6071                         FILE_GENERIC_WRITE,
6072                         FILE_SHARE_READ|FILE_SHARE_WRITE,
6073                         new_create_disposition,
6074                         0,
6075                         dosattrs,
6076                         INTERNAL_OPEN_ONLY,
6077                         NULL, &fsp2);
6078
6079         TALLOC_FREE(dest);
6080
6081         if (!NT_STATUS_IS_OK(status)) {
6082                 close_file(fsp1,ERROR_CLOSE);
6083                 return status;
6084         }
6085
6086         if ((ofun&3) == 1) {
6087                 if(SMB_VFS_LSEEK(fsp2,0,SEEK_END) == -1) {
6088                         DEBUG(0,("copy_file: error - vfs lseek returned error %s\n", strerror(errno) ));
6089                         /*
6090                          * Stop the copy from occurring.
6091                          */
6092                         ret = -1;
6093                         src_sbuf.st_size = 0;
6094                 }
6095         }
6096
6097         if (src_sbuf.st_size) {
6098                 ret = vfs_transfer_file(fsp1, fsp2, src_sbuf.st_size);
6099         }
6100
6101         close_file(fsp1,NORMAL_CLOSE);
6102
6103         /* Ensure the modtime is set correctly on the destination file. */
6104         set_close_write_time(fsp2, get_mtimespec(&src_sbuf));
6105
6106         /*
6107          * As we are opening fsp1 read-only we only expect
6108          * an error on close on fsp2 if we are out of space.
6109          * Thus we don't look at the error return from the
6110          * close of fsp1.
6111          */
6112         status = close_file(fsp2,NORMAL_CLOSE);
6113
6114         if (!NT_STATUS_IS_OK(status)) {
6115                 return status;
6116         }
6117
6118         if (ret != (SMB_OFF_T)src_sbuf.st_size) {
6119                 return NT_STATUS_DISK_FULL;
6120         }
6121
6122         return NT_STATUS_OK;
6123 }
6124
6125 /****************************************************************************
6126  Reply to a file copy.
6127 ****************************************************************************/
6128
6129 void reply_copy(struct smb_request *req)
6130 {
6131         connection_struct *conn = req->conn;
6132         char *name = NULL;
6133         char *newname = NULL;
6134         char *directory = NULL;
6135         char *mask = NULL;
6136         char *p;
6137         int count=0;
6138         int error = ERRnoaccess;
6139         int err = 0;
6140         int tid2;
6141         int ofun;
6142         int flags;
6143         bool target_is_directory=False;
6144         bool source_has_wild = False;
6145         bool dest_has_wild = False;
6146         SMB_STRUCT_STAT sbuf1, sbuf2;
6147         NTSTATUS status;
6148         TALLOC_CTX *ctx = talloc_tos();
6149
6150         START_PROFILE(SMBcopy);
6151
6152         if (req->wct < 3) {
6153                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6154                 END_PROFILE(SMBcopy);
6155                 return;
6156         }
6157
6158         tid2 = SVAL(req->inbuf,smb_vwv0);
6159         ofun = SVAL(req->inbuf,smb_vwv1);
6160         flags = SVAL(req->inbuf,smb_vwv2);
6161
6162         p = smb_buf(req->inbuf);
6163         p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &name, p,
6164                                    0, STR_TERMINATE, &status,
6165                                    &source_has_wild);
6166         if (!NT_STATUS_IS_OK(status)) {
6167                 reply_nterror(req, status);
6168                 END_PROFILE(SMBcopy);
6169                 return;
6170         }
6171         p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p,
6172                                    0, STR_TERMINATE, &status,
6173                                    &dest_has_wild);
6174         if (!NT_STATUS_IS_OK(status)) {
6175                 reply_nterror(req, status);
6176                 END_PROFILE(SMBcopy);
6177                 return;
6178         }
6179
6180         DEBUG(3,("reply_copy : %s -> %s\n",name,newname));
6181
6182         if (tid2 != conn->cnum) {
6183                 /* can't currently handle inter share copies XXXX */
6184                 DEBUG(3,("Rejecting inter-share copy\n"));
6185                 reply_doserror(req, ERRSRV, ERRinvdevice);
6186                 END_PROFILE(SMBcopy);
6187                 return;
6188         }
6189
6190         status = resolve_dfspath_wcard(ctx, conn,
6191                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6192                                        name,
6193                                        &name,
6194                                        &source_has_wild);
6195         if (!NT_STATUS_IS_OK(status)) {
6196                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6197                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6198                                         ERRSRV, ERRbadpath);
6199                         END_PROFILE(SMBcopy);
6200                         return;
6201                 }
6202                 reply_nterror(req, status);
6203                 END_PROFILE(SMBcopy);
6204                 return;
6205         }
6206
6207         status = resolve_dfspath_wcard(ctx, conn,
6208                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
6209                                        newname,
6210                                        &newname,
6211                                        &dest_has_wild);
6212         if (!NT_STATUS_IS_OK(status)) {
6213                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
6214                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
6215                                         ERRSRV, ERRbadpath);
6216                         END_PROFILE(SMBcopy);
6217                         return;
6218                 }
6219                 reply_nterror(req, status);
6220                 END_PROFILE(SMBcopy);
6221                 return;
6222         }
6223
6224         status = unix_convert(ctx, conn, name, source_has_wild,
6225                         &name, NULL, &sbuf1);
6226         if (!NT_STATUS_IS_OK(status)) {
6227                 reply_nterror(req, status);
6228                 END_PROFILE(SMBcopy);
6229                 return;
6230         }
6231
6232         status = unix_convert(ctx, conn, newname, dest_has_wild,
6233                         &newname, NULL, &sbuf2);
6234         if (!NT_STATUS_IS_OK(status)) {
6235                 reply_nterror(req, status);
6236                 END_PROFILE(SMBcopy);
6237                 return;
6238         }
6239
6240         target_is_directory = VALID_STAT_OF_DIR(sbuf2);
6241
6242         if ((flags&1) && target_is_directory) {
6243                 reply_doserror(req, ERRDOS, ERRbadfile);
6244                 END_PROFILE(SMBcopy);
6245                 return;
6246         }
6247
6248         if ((flags&2) && !target_is_directory) {
6249                 reply_doserror(req, ERRDOS, ERRbadpath);
6250                 END_PROFILE(SMBcopy);
6251                 return;
6252         }
6253
6254         if ((flags&(1<<5)) && VALID_STAT_OF_DIR(sbuf1)) {
6255                 /* wants a tree copy! XXXX */
6256                 DEBUG(3,("Rejecting tree copy\n"));
6257                 reply_doserror(req, ERRSRV, ERRerror);
6258                 END_PROFILE(SMBcopy);
6259                 return;
6260         }
6261
6262         p = strrchr_m(name,'/');
6263         if (!p) {
6264                 directory = talloc_strdup(ctx, "./");
6265                 if (!directory) {
6266                         reply_nterror(req, NT_STATUS_NO_MEMORY);
6267                         END_PROFILE(SMBcopy);
6268                         return;
6269                 }
6270                 mask = name;
6271         } else {
6272                 *p = 0;
6273                 directory = talloc_strdup(ctx, name);
6274                 if (!directory) {
6275                         reply_nterror(req, NT_STATUS_NO_MEMORY);
6276                         END_PROFILE(SMBcopy);
6277                         return;
6278                 }
6279                 mask = p+1;
6280         }
6281
6282         /*
6283          * We should only check the mangled cache
6284          * here if unix_convert failed. This means
6285          * that the path in 'mask' doesn't exist
6286          * on the file system and so we need to look
6287          * for a possible mangle. This patch from
6288          * Tine Smukavec <valentin.smukavec@hermes.si>.
6289          */
6290
6291         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
6292                 char *new_mask = NULL;
6293                 mangle_lookup_name_from_8_3(ctx,
6294                                         mask,
6295                                         &new_mask,
6296                                         conn->params );
6297                 if (new_mask) {
6298                         mask = new_mask;
6299                 }
6300         }
6301
6302         if (!source_has_wild) {
6303                 directory = talloc_asprintf_append(directory,
6304                                 "/%s",
6305                                 mask);
6306                 if (dest_has_wild) {
6307                         char *mod_newname = NULL;
6308                         if (!resolve_wildcards(ctx,
6309                                         directory,newname,&mod_newname)) {
6310                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6311                                 END_PROFILE(SMBcopy);
6312                                 return;
6313                         }
6314                         newname = mod_newname;
6315                 }
6316
6317                 status = check_name(conn, directory);
6318                 if (!NT_STATUS_IS_OK(status)) {
6319                         reply_nterror(req, status);
6320                         END_PROFILE(SMBcopy);
6321                         return;
6322                 }
6323
6324                 status = check_name(conn, newname);
6325                 if (!NT_STATUS_IS_OK(status)) {
6326                         reply_nterror(req, status);
6327                         END_PROFILE(SMBcopy);
6328                         return;
6329                 }
6330
6331                 status = copy_file(ctx,conn,directory,newname,ofun,
6332                                 count,target_is_directory);
6333
6334                 if(!NT_STATUS_IS_OK(status)) {
6335                         reply_nterror(req, status);
6336                         END_PROFILE(SMBcopy);
6337                         return;
6338                 } else {
6339                         count++;
6340                 }
6341         } else {
6342                 struct smb_Dir *dir_hnd = NULL;
6343                 const char *dname = NULL;
6344                 long offset = 0;
6345
6346                 if (strequal(mask,"????????.???")) {
6347                         mask[0] = '*';
6348                         mask[1] = '\0';
6349                 }
6350
6351                 status = check_name(conn, directory);
6352                 if (!NT_STATUS_IS_OK(status)) {
6353                         reply_nterror(req, status);
6354                         END_PROFILE(SMBcopy);
6355                         return;
6356                 }
6357
6358                 dir_hnd = OpenDir(talloc_tos(), conn, directory, mask, 0);
6359                 if (dir_hnd == NULL) {
6360                         status = map_nt_error_from_unix(errno);
6361                         reply_nterror(req, status);
6362                         END_PROFILE(SMBcopy);
6363                         return;
6364                 }
6365
6366                 error = ERRbadfile;
6367
6368                 while ((dname = ReadDirName(dir_hnd, &offset))) {
6369                         char *destname = NULL;
6370                         char *fname = NULL;
6371
6372                         if (ISDOT(dname) || ISDOTDOT(dname)) {
6373                                 continue;
6374                         }
6375
6376                         if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
6377                                 continue;
6378                         }
6379
6380                         if(!mask_match(dname, mask, conn->case_sensitive)) {
6381                                 continue;
6382                         }
6383
6384                         error = ERRnoaccess;
6385                         fname = talloc_asprintf(ctx,
6386                                         "%s/%s",
6387                                         directory,
6388                                         dname);
6389                         if (!fname) {
6390                                 TALLOC_FREE(dir_hnd);
6391                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6392                                 END_PROFILE(SMBcopy);
6393                                 return;
6394                         }
6395
6396                         if (!resolve_wildcards(ctx,
6397                                         fname,newname,&destname)) {
6398                                 continue;
6399                         }
6400                         if (!destname) {
6401                                 TALLOC_FREE(dir_hnd);
6402                                 reply_nterror(req, NT_STATUS_NO_MEMORY);
6403                                 END_PROFILE(SMBcopy);
6404                                 return;
6405                         }
6406
6407                         status = check_name(conn, fname);
6408                         if (!NT_STATUS_IS_OK(status)) {
6409                                 TALLOC_FREE(dir_hnd);
6410                                 reply_nterror(req, status);
6411                                 END_PROFILE(SMBcopy);
6412                                 return;
6413                         }
6414
6415                         status = check_name(conn, destname);
6416                         if (!NT_STATUS_IS_OK(status)) {
6417                                 TALLOC_FREE(dir_hnd);
6418                                 reply_nterror(req, status);
6419                                 END_PROFILE(SMBcopy);
6420                                 return;
6421                         }
6422
6423                         DEBUG(3,("reply_copy : doing copy on %s -> %s\n",fname, destname));
6424
6425                         status = copy_file(ctx,conn,fname,destname,ofun,
6426                                         count,target_is_directory);
6427                         if (NT_STATUS_IS_OK(status)) {
6428                                 count++;
6429                         }
6430                         TALLOC_FREE(fname);
6431                         TALLOC_FREE(destname);
6432                 }
6433                 TALLOC_FREE(dir_hnd);
6434         }
6435
6436         if (count == 0) {
6437                 if(err) {
6438                         /* Error on close... */
6439                         errno = err;
6440                         reply_unixerror(req, ERRHRD, ERRgeneral);
6441                         END_PROFILE(SMBcopy);
6442                         return;
6443                 }
6444
6445                 reply_doserror(req, ERRDOS, error);
6446                 END_PROFILE(SMBcopy);
6447                 return;
6448         }
6449
6450         reply_outbuf(req, 1, 0);
6451         SSVAL(req->outbuf,smb_vwv0,count);
6452
6453         END_PROFILE(SMBcopy);
6454         return;
6455 }
6456
6457 #undef DBGC_CLASS
6458 #define DBGC_CLASS DBGC_LOCKING
6459
6460 /****************************************************************************
6461  Get a lock pid, dealing with large count requests.
6462 ****************************************************************************/
6463
6464 uint32 get_lock_pid( char *data, int data_offset, bool large_file_format)
6465 {
6466         if(!large_file_format)
6467                 return (uint32)SVAL(data,SMB_LPID_OFFSET(data_offset));
6468         else
6469                 return (uint32)SVAL(data,SMB_LARGE_LPID_OFFSET(data_offset));
6470 }
6471
6472 /****************************************************************************
6473  Get a lock count, dealing with large count requests.
6474 ****************************************************************************/
6475
6476 SMB_BIG_UINT get_lock_count( char *data, int data_offset, bool large_file_format)
6477 {
6478         SMB_BIG_UINT count = 0;
6479
6480         if(!large_file_format) {
6481                 count = (SMB_BIG_UINT)IVAL(data,SMB_LKLEN_OFFSET(data_offset));
6482         } else {
6483
6484 #if defined(HAVE_LONGLONG)
6485                 count = (((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset))) << 32) |
6486                         ((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)));
6487 #else /* HAVE_LONGLONG */
6488
6489                 /*
6490                  * NT4.x seems to be broken in that it sends large file (64 bit)
6491                  * lockingX calls even if the CAP_LARGE_FILES was *not*
6492                  * negotiated. For boxes without large unsigned ints truncate the
6493                  * lock count by dropping the top 32 bits.
6494                  */
6495
6496                 if(IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)) != 0) {
6497                         DEBUG(3,("get_lock_count: truncating lock count (high)0x%x (low)0x%x to just low count.\n",
6498                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)),
6499                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)) ));
6500                                 SIVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset),0);
6501                 }
6502
6503                 count = (SMB_BIG_UINT)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset));
6504 #endif /* HAVE_LONGLONG */
6505         }
6506
6507         return count;
6508 }
6509
6510 #if !defined(HAVE_LONGLONG)
6511 /****************************************************************************
6512  Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-).
6513 ****************************************************************************/
6514
6515 static uint32 map_lock_offset(uint32 high, uint32 low)
6516 {
6517         unsigned int i;
6518         uint32 mask = 0;
6519         uint32 highcopy = high;
6520
6521         /*
6522          * Try and find out how many significant bits there are in high.
6523          */
6524
6525         for(i = 0; highcopy; i++)
6526                 highcopy >>= 1;
6527
6528         /*
6529          * We use 31 bits not 32 here as POSIX
6530          * lock offsets may not be negative.
6531          */
6532
6533         mask = (~0) << (31 - i);
6534
6535         if(low & mask)
6536                 return 0; /* Fail. */
6537
6538         high <<= (31 - i);
6539
6540         return (high|low);
6541 }
6542 #endif /* !defined(HAVE_LONGLONG) */
6543
6544 /****************************************************************************
6545  Get a lock offset, dealing with large offset requests.
6546 ****************************************************************************/
6547
6548 SMB_BIG_UINT get_lock_offset( char *data, int data_offset, bool large_file_format, bool *err)
6549 {
6550         SMB_BIG_UINT offset = 0;
6551
6552         *err = False;
6553
6554         if(!large_file_format) {
6555                 offset = (SMB_BIG_UINT)IVAL(data,SMB_LKOFF_OFFSET(data_offset));
6556         } else {
6557
6558 #if defined(HAVE_LONGLONG)
6559                 offset = (((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset))) << 32) |
6560                                 ((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset)));
6561 #else /* HAVE_LONGLONG */
6562
6563                 /*
6564                  * NT4.x seems to be broken in that it sends large file (64 bit)
6565                  * lockingX calls even if the CAP_LARGE_FILES was *not*
6566                  * negotiated. For boxes without large unsigned ints mangle the
6567                  * lock offset by mapping the top 32 bits onto the lower 32.
6568                  */
6569
6570                 if(IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset)) != 0) {
6571                         uint32 low = IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
6572                         uint32 high = IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset));
6573                         uint32 new_low = 0;
6574
6575                         if((new_low = map_lock_offset(high, low)) == 0) {
6576                                 *err = True;
6577                                 return (SMB_BIG_UINT)-1;
6578                         }
6579
6580                         DEBUG(3,("get_lock_offset: truncating lock offset (high)0x%x (low)0x%x to offset 0x%x.\n",
6581                                 (unsigned int)high, (unsigned int)low, (unsigned int)new_low ));
6582                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset),0);
6583                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset),new_low);
6584                 }
6585
6586                 offset = (SMB_BIG_UINT)IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
6587 #endif /* HAVE_LONGLONG */
6588         }
6589
6590         return offset;
6591 }
6592
6593 /****************************************************************************
6594  Reply to a lockingX request.
6595 ****************************************************************************/
6596
6597 void reply_lockingX(struct smb_request *req)
6598 {
6599         connection_struct *conn = req->conn;
6600         files_struct *fsp;
6601         unsigned char locktype;
6602         unsigned char oplocklevel;
6603         uint16 num_ulocks;
6604         uint16 num_locks;
6605         SMB_BIG_UINT count = 0, offset = 0;
6606         uint32 lock_pid;
6607         int32 lock_timeout;
6608         int i;
6609         char *data;
6610         bool large_file_format;
6611         bool err;
6612         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
6613
6614         START_PROFILE(SMBlockingX);
6615
6616         if (req->wct < 8) {
6617                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6618                 END_PROFILE(SMBlockingX);
6619                 return;
6620         }
6621
6622         fsp = file_fsp(SVAL(req->inbuf,smb_vwv2));
6623         locktype = CVAL(req->inbuf,smb_vwv3);
6624         oplocklevel = CVAL(req->inbuf,smb_vwv3+1);
6625         num_ulocks = SVAL(req->inbuf,smb_vwv6);
6626         num_locks = SVAL(req->inbuf,smb_vwv7);
6627         lock_timeout = IVAL(req->inbuf,smb_vwv4);
6628         large_file_format = (locktype & LOCKING_ANDX_LARGE_FILES)?True:False;
6629
6630         if (!check_fsp(conn, req, fsp, &current_user)) {
6631                 END_PROFILE(SMBlockingX);
6632                 return;
6633         }
6634
6635         data = smb_buf(req->inbuf);
6636
6637         if (locktype & LOCKING_ANDX_CHANGE_LOCKTYPE) {
6638                 /* we don't support these - and CANCEL_LOCK makes w2k
6639                    and XP reboot so I don't really want to be
6640                    compatible! (tridge) */
6641                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRnoatomiclocks));
6642                 END_PROFILE(SMBlockingX);
6643                 return;
6644         }
6645
6646         /* Check if this is an oplock break on a file
6647            we have granted an oplock on.
6648         */
6649         if ((locktype & LOCKING_ANDX_OPLOCK_RELEASE)) {
6650                 /* Client can insist on breaking to none. */
6651                 bool break_to_none = (oplocklevel == 0);
6652                 bool result;
6653
6654                 DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
6655                          "for fnum = %d\n", (unsigned int)oplocklevel,
6656                          fsp->fnum ));
6657
6658                 /*
6659                  * Make sure we have granted an exclusive or batch oplock on
6660                  * this file.
6661                  */
6662
6663                 if (fsp->oplock_type == 0) {
6664
6665                         /* The Samba4 nbench simulator doesn't understand
6666                            the difference between break to level2 and break
6667                            to none from level2 - it sends oplock break
6668                            replies in both cases. Don't keep logging an error
6669                            message here - just ignore it. JRA. */
6670
6671                         DEBUG(5,("reply_lockingX: Error : oplock break from "
6672                                  "client for fnum = %d (oplock=%d) and no "
6673                                  "oplock granted on this file (%s).\n",
6674                                  fsp->fnum, fsp->oplock_type, fsp->fsp_name));
6675
6676                         /* if this is a pure oplock break request then don't
6677                          * send a reply */
6678                         if (num_locks == 0 && num_ulocks == 0) {
6679                                 END_PROFILE(SMBlockingX);
6680                                 return;
6681                         } else {
6682                                 END_PROFILE(SMBlockingX);
6683                                 reply_doserror(req, ERRDOS, ERRlock);
6684                                 return;
6685                         }
6686                 }
6687
6688                 if ((fsp->sent_oplock_break == BREAK_TO_NONE_SENT) ||
6689                     (break_to_none)) {
6690                         result = remove_oplock(fsp);
6691                 } else {
6692                         result = downgrade_oplock(fsp);
6693                 }
6694
6695                 if (!result) {
6696                         DEBUG(0, ("reply_lockingX: error in removing "
6697                                   "oplock on file %s\n", fsp->fsp_name));
6698                         /* Hmmm. Is this panic justified? */
6699                         smb_panic("internal tdb error");
6700                 }
6701
6702                 reply_to_oplock_break_requests(fsp);
6703
6704                 /* if this is a pure oplock break request then don't send a
6705                  * reply */
6706                 if (num_locks == 0 && num_ulocks == 0) {
6707                         /* Sanity check - ensure a pure oplock break is not a
6708                            chained request. */
6709                         if(CVAL(req->inbuf,smb_vwv0) != 0xff)
6710                                 DEBUG(0,("reply_lockingX: Error : pure oplock "
6711                                          "break is a chained %d request !\n",
6712                                          (unsigned int)CVAL(req->inbuf,
6713                                                             smb_vwv0) ));
6714                         END_PROFILE(SMBlockingX);
6715                         return;
6716                 }
6717         }
6718
6719         /*
6720          * We do this check *after* we have checked this is not a oplock break
6721          * response message. JRA.
6722          */
6723
6724         release_level_2_oplocks_on_change(fsp);
6725
6726         if (smb_buflen(req->inbuf) <
6727             (num_ulocks + num_locks) * (large_file_format ? 20 : 10)) {
6728                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6729                 END_PROFILE(SMBlockingX);
6730                 return;
6731         }
6732
6733         /* Data now points at the beginning of the list
6734            of smb_unlkrng structs */
6735         for(i = 0; i < (int)num_ulocks; i++) {
6736                 lock_pid = get_lock_pid( data, i, large_file_format);
6737                 count = get_lock_count( data, i, large_file_format);
6738                 offset = get_lock_offset( data, i, large_file_format, &err);
6739
6740                 /*
6741                  * There is no error code marked "stupid client bug".... :-).
6742                  */
6743                 if(err) {
6744                         END_PROFILE(SMBlockingX);
6745                         reply_doserror(req, ERRDOS, ERRnoaccess);
6746                         return;
6747                 }
6748
6749                 DEBUG(10,("reply_lockingX: unlock start=%.0f, len=%.0f for "
6750                           "pid %u, file %s\n", (double)offset, (double)count,
6751                           (unsigned int)lock_pid, fsp->fsp_name ));
6752
6753                 status = do_unlock(smbd_messaging_context(),
6754                                 fsp,
6755                                 lock_pid,
6756                                 count,
6757                                 offset,
6758                                 WINDOWS_LOCK);
6759
6760                 if (NT_STATUS_V(status)) {
6761                         END_PROFILE(SMBlockingX);
6762                         reply_nterror(req, status);
6763                         return;
6764                 }
6765         }
6766
6767         /* Setup the timeout in seconds. */
6768
6769         if (!lp_blocking_locks(SNUM(conn))) {
6770                 lock_timeout = 0;
6771         }
6772
6773         /* Now do any requested locks */
6774         data += ((large_file_format ? 20 : 10)*num_ulocks);
6775
6776         /* Data now points at the beginning of the list
6777            of smb_lkrng structs */
6778
6779         for(i = 0; i < (int)num_locks; i++) {
6780                 enum brl_type lock_type = ((locktype & LOCKING_ANDX_SHARED_LOCK) ?
6781                                 READ_LOCK:WRITE_LOCK);
6782                 lock_pid = get_lock_pid( data, i, large_file_format);
6783                 count = get_lock_count( data, i, large_file_format);
6784                 offset = get_lock_offset( data, i, large_file_format, &err);
6785
6786                 /*
6787                  * There is no error code marked "stupid client bug".... :-).
6788                  */
6789                 if(err) {
6790                         END_PROFILE(SMBlockingX);
6791                         reply_doserror(req, ERRDOS, ERRnoaccess);
6792                         return;
6793                 }
6794
6795                 DEBUG(10,("reply_lockingX: lock start=%.0f, len=%.0f for pid "
6796                           "%u, file %s timeout = %d\n", (double)offset,
6797                           (double)count, (unsigned int)lock_pid,
6798                           fsp->fsp_name, (int)lock_timeout ));
6799
6800                 if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
6801                         if (lp_blocking_locks(SNUM(conn))) {
6802
6803                                 /* Schedule a message to ourselves to
6804                                    remove the blocking lock record and
6805                                    return the right error. */
6806
6807                                 if (!blocking_lock_cancel(fsp,
6808                                                 lock_pid,
6809                                                 offset,
6810                                                 count,
6811                                                 WINDOWS_LOCK,
6812                                                 locktype,
6813                                                 NT_STATUS_FILE_LOCK_CONFLICT)) {
6814                                         END_PROFILE(SMBlockingX);
6815                                         reply_nterror(
6816                                                 req,
6817                                                 NT_STATUS_DOS(
6818                                                         ERRDOS,
6819                                                         ERRcancelviolation));
6820                                         return;
6821                                 }
6822                         }
6823                         /* Remove a matching pending lock. */
6824                         status = do_lock_cancel(fsp,
6825                                                 lock_pid,
6826                                                 count,
6827                                                 offset,
6828                                                 WINDOWS_LOCK);
6829                 } else {
6830                         bool blocking_lock = lock_timeout ? True : False;
6831                         bool defer_lock = False;
6832                         struct byte_range_lock *br_lck;
6833                         uint32 block_smbpid;
6834
6835                         br_lck = do_lock(smbd_messaging_context(),
6836                                         fsp,
6837                                         lock_pid,
6838                                         count,
6839                                         offset,
6840                                         lock_type,
6841                                         WINDOWS_LOCK,
6842                                         blocking_lock,
6843                                         &status,
6844                                         &block_smbpid);
6845
6846                         if (br_lck && blocking_lock && ERROR_WAS_LOCK_DENIED(status)) {
6847                                 /* Windows internal resolution for blocking locks seems
6848                                    to be about 200ms... Don't wait for less than that. JRA. */
6849                                 if (lock_timeout != -1 && lock_timeout < lp_lock_spin_time()) {
6850                                         lock_timeout = lp_lock_spin_time();
6851                                 }
6852                                 defer_lock = True;
6853                         }
6854
6855                         /* This heuristic seems to match W2K3 very well. If a
6856                            lock sent with timeout of zero would fail with NT_STATUS_FILE_LOCK_CONFLICT
6857                            it pretends we asked for a timeout of between 150 - 300 milliseconds as
6858                            far as I can tell. Replacement for do_lock_spin(). JRA. */
6859
6860                         if (br_lck && lp_blocking_locks(SNUM(conn)) && !blocking_lock &&
6861                                         NT_STATUS_EQUAL((status), NT_STATUS_FILE_LOCK_CONFLICT)) {
6862                                 defer_lock = True;
6863                                 lock_timeout = lp_lock_spin_time();
6864                         }
6865
6866                         if (br_lck && defer_lock) {
6867                                 /*
6868                                  * A blocking lock was requested. Package up
6869                                  * this smb into a queued request and push it
6870                                  * onto the blocking lock queue.
6871                                  */
6872                                 if(push_blocking_lock_request(br_lck,
6873                                                         req,
6874                                                         fsp,
6875                                                         lock_timeout,
6876                                                         i,
6877                                                         lock_pid,
6878                                                         lock_type,
6879                                                         WINDOWS_LOCK,
6880                                                         offset,
6881                                                         count,
6882                                                         block_smbpid)) {
6883                                         TALLOC_FREE(br_lck);
6884                                         END_PROFILE(SMBlockingX);
6885                                         return;
6886                                 }
6887                         }
6888
6889                         TALLOC_FREE(br_lck);
6890                 }
6891
6892                 if (NT_STATUS_V(status)) {
6893                         END_PROFILE(SMBlockingX);
6894                         reply_nterror(req, status);
6895                         return;
6896                 }
6897         }
6898
6899         /* If any of the above locks failed, then we must unlock
6900            all of the previous locks (X/Open spec). */
6901
6902         if (!(locktype & LOCKING_ANDX_CANCEL_LOCK) &&
6903                         (i != num_locks) &&
6904                         (num_locks != 0)) {
6905                 /*
6906                  * Ensure we don't do a remove on the lock that just failed,
6907                  * as under POSIX rules, if we have a lock already there, we
6908                  * will delete it (and we shouldn't) .....
6909                  */
6910                 for(i--; i >= 0; i--) {
6911                         lock_pid = get_lock_pid( data, i, large_file_format);
6912                         count = get_lock_count( data, i, large_file_format);
6913                         offset = get_lock_offset( data, i, large_file_format,
6914                                                   &err);
6915
6916                         /*
6917                          * There is no error code marked "stupid client
6918                          * bug".... :-).
6919                          */
6920                         if(err) {
6921                                 END_PROFILE(SMBlockingX);
6922                                 reply_doserror(req, ERRDOS, ERRnoaccess);
6923                                 return;
6924                         }
6925
6926                         do_unlock(smbd_messaging_context(),
6927                                 fsp,
6928                                 lock_pid,
6929                                 count,
6930                                 offset,
6931                                 WINDOWS_LOCK);
6932                 }
6933                 END_PROFILE(SMBlockingX);
6934                 reply_nterror(req, status);
6935                 return;
6936         }
6937
6938         reply_outbuf(req, 2, 0);
6939
6940         DEBUG(3, ("lockingX fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
6941                   fsp->fnum, (unsigned int)locktype, num_locks, num_ulocks));
6942
6943         END_PROFILE(SMBlockingX);
6944         chain_reply(req);
6945 }
6946
6947 #undef DBGC_CLASS
6948 #define DBGC_CLASS DBGC_ALL
6949
6950 /****************************************************************************
6951  Reply to a SMBreadbmpx (read block multiplex) request.
6952  Always reply with an error, if someone has a platform really needs this,
6953  please contact vl@samba.org
6954 ****************************************************************************/
6955
6956 void reply_readbmpx(struct smb_request *req)
6957 {
6958         START_PROFILE(SMBreadBmpx);
6959         reply_doserror(req, ERRSRV, ERRuseSTD);
6960         END_PROFILE(SMBreadBmpx);
6961         return;
6962 }
6963
6964 /****************************************************************************
6965  Reply to a SMBreadbs (read block multiplex secondary) request.
6966  Always reply with an error, if someone has a platform really needs this,
6967  please contact vl@samba.org
6968 ****************************************************************************/
6969
6970 void reply_readbs(struct smb_request *req)
6971 {
6972         START_PROFILE(SMBreadBs);
6973         reply_doserror(req, ERRSRV, ERRuseSTD);
6974         END_PROFILE(SMBreadBs);
6975         return;
6976 }
6977
6978 /****************************************************************************
6979  Reply to a SMBsetattrE.
6980 ****************************************************************************/
6981
6982 void reply_setattrE(struct smb_request *req)
6983 {
6984         connection_struct *conn = req->conn;
6985         struct timespec ts[2];
6986         files_struct *fsp;
6987         SMB_STRUCT_STAT sbuf;
6988         NTSTATUS status;
6989
6990         START_PROFILE(SMBsetattrE);
6991
6992         if (req->wct < 7) {
6993                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6994                 END_PROFILE(SMBsetattrE);
6995                 return;
6996         }
6997
6998         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
6999
7000         if(!fsp || (fsp->conn != conn)) {
7001                 reply_doserror(req, ERRDOS, ERRbadfid);
7002                 END_PROFILE(SMBsetattrE);
7003                 return;
7004         }
7005
7006
7007         /*
7008          * Convert the DOS times into unix times. Ignore create
7009          * time as UNIX can't set this.
7010          */
7011
7012         ts[0] = convert_time_t_to_timespec(
7013                 srv_make_unix_date2(req->inbuf+smb_vwv3)); /* atime. */
7014         ts[1] = convert_time_t_to_timespec(
7015                 srv_make_unix_date2(req->inbuf+smb_vwv5)); /* mtime. */
7016
7017         reply_outbuf(req, 0, 0);
7018
7019         /*
7020          * Patch from Ray Frush <frush@engr.colostate.edu>
7021          * Sometimes times are sent as zero - ignore them.
7022          */
7023
7024         /* Ensure we have a valid stat struct for the source. */
7025         if (fsp->fh->fd != -1) {
7026                 if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
7027                         status = map_nt_error_from_unix(errno);
7028                         reply_nterror(req, status);
7029                         END_PROFILE(SMBsetattrE);
7030                         return;
7031                 }
7032         } else {
7033                 if (SMB_VFS_STAT(conn, fsp->fsp_name, &sbuf) == -1) {
7034                         status = map_nt_error_from_unix(errno);
7035                         reply_nterror(req, status);
7036                         END_PROFILE(SMBsetattrE);
7037                         return;
7038                 }
7039         }
7040
7041         status = smb_set_file_time(conn, fsp, fsp->fsp_name,
7042                                    &sbuf, ts, true);
7043         if (!NT_STATUS_IS_OK(status)) {
7044                 reply_doserror(req, ERRDOS, ERRnoaccess);
7045                 END_PROFILE(SMBsetattrE);
7046                 return;
7047         }
7048
7049         DEBUG( 3, ( "reply_setattrE fnum=%d actime=%u modtime=%u\n",
7050                 fsp->fnum,
7051                 (unsigned int)ts[0].tv_sec,
7052                 (unsigned int)ts[1].tv_sec));
7053
7054         END_PROFILE(SMBsetattrE);
7055         return;
7056 }
7057
7058
7059 /* Back from the dead for OS/2..... JRA. */
7060
7061 /****************************************************************************
7062  Reply to a SMBwritebmpx (write block multiplex primary) request.
7063  Always reply with an error, if someone has a platform really needs this,
7064  please contact vl@samba.org
7065 ****************************************************************************/
7066
7067 void reply_writebmpx(struct smb_request *req)
7068 {
7069         START_PROFILE(SMBwriteBmpx);
7070         reply_doserror(req, ERRSRV, ERRuseSTD);
7071         END_PROFILE(SMBwriteBmpx);
7072         return;
7073 }
7074
7075 /****************************************************************************
7076  Reply to a SMBwritebs (write block multiplex secondary) request.
7077  Always reply with an error, if someone has a platform really needs this,
7078  please contact vl@samba.org
7079 ****************************************************************************/
7080
7081 void reply_writebs(struct smb_request *req)
7082 {
7083         START_PROFILE(SMBwriteBs);
7084         reply_doserror(req, ERRSRV, ERRuseSTD);
7085         END_PROFILE(SMBwriteBs);
7086         return;
7087 }
7088
7089 /****************************************************************************
7090  Reply to a SMBgetattrE.
7091 ****************************************************************************/
7092
7093 void reply_getattrE(struct smb_request *req)
7094 {
7095         connection_struct *conn = req->conn;
7096         SMB_STRUCT_STAT sbuf;
7097         int mode;
7098         files_struct *fsp;
7099         struct timespec create_ts;
7100
7101         START_PROFILE(SMBgetattrE);
7102
7103         if (req->wct < 1) {
7104                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
7105                 END_PROFILE(SMBgetattrE);
7106                 return;
7107         }
7108
7109         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
7110
7111         if(!fsp || (fsp->conn != conn)) {
7112                 reply_doserror(req, ERRDOS, ERRbadfid);
7113                 END_PROFILE(SMBgetattrE);
7114                 return;
7115         }
7116
7117         /* Do an fstat on this file */
7118         if(fsp_stat(fsp, &sbuf)) {
7119                 reply_unixerror(req, ERRDOS, ERRnoaccess);
7120                 END_PROFILE(SMBgetattrE);
7121                 return;
7122         }
7123
7124         mode = dos_mode(conn,fsp->fsp_name,&sbuf);
7125
7126         /*
7127          * Convert the times into dos times. Set create
7128          * date to be last modify date as UNIX doesn't save
7129          * this.
7130          */
7131
7132         reply_outbuf(req, 11, 0);
7133
7134         create_ts = get_create_timespec(&sbuf,
7135                                   lp_fake_dir_create_times(SNUM(conn)));
7136         srv_put_dos_date2((char *)req->outbuf, smb_vwv0, create_ts.tv_sec);
7137         srv_put_dos_date2((char *)req->outbuf, smb_vwv2, sbuf.st_atime);
7138         /* Should we check pending modtime here ? JRA */
7139         srv_put_dos_date2((char *)req->outbuf, smb_vwv4, sbuf.st_mtime);
7140
7141         if (mode & aDIR) {
7142                 SIVAL(req->outbuf, smb_vwv6, 0);
7143                 SIVAL(req->outbuf, smb_vwv8, 0);
7144         } else {
7145                 uint32 allocation_size = get_allocation_size(conn,fsp, &sbuf);
7146                 SIVAL(req->outbuf, smb_vwv6, (uint32)sbuf.st_size);
7147                 SIVAL(req->outbuf, smb_vwv8, allocation_size);
7148         }
7149         SSVAL(req->outbuf,smb_vwv10, mode);
7150
7151         DEBUG( 3, ( "reply_getattrE fnum=%d\n", fsp->fnum));
7152
7153         END_PROFILE(SMBgetattrE);
7154         return;
7155 }