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         return ret;
 171 }
 172
 173 /****************************************************************************
 174  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
 175  No wildcards allowed.
 176 ****************************************************************************/
 177
 178 NTSTATUS check_path_syntax(char *path)
 179 {
 180         BOOL ignore;
 181         return check_path_syntax_internal(path, False, &ignore);
 182 }
 183
 184 /****************************************************************************
 185  Ensure we check the path in *exactly* the same way as W2K for regular pathnames.
 186  Wildcards allowed - p_contains_wcard returns true if the last component contained
 187  a wildcard.
 188 ****************************************************************************/
 189
 190 NTSTATUS check_path_syntax_wcard(char *path, BOOL *p_contains_wcard)
 191 {
 192         return check_path_syntax_internal(path, False, p_contains_wcard);
 193 }
 194
 195 /****************************************************************************
 196  Check the path for a POSIX client.
 197  We're assuming here that '/' is not the second byte in any multibyte char
 198  set (a safe assumption).
 199 ****************************************************************************/
 200
 201 NTSTATUS check_path_syntax_posix(char *path)
 202 {
 203         BOOL ignore;
 204         return check_path_syntax_internal(path, True, &ignore);
 205 }
 206
 207 /****************************************************************************
 208  Pull a string and check the path allowing a wilcard - provide for error return.
 209 ****************************************************************************/
 210
 211 size_t srvstr_get_path_wcard(const char *inbuf, uint16 smb_flags2, char *dest,
 212                              const char *src, size_t dest_len, size_t src_len,
 213                              int flags, NTSTATUS *err, BOOL *contains_wcard)
 214 {
 215         size_t ret;
 216 #ifdef DEVELOPER
 217         SMB_ASSERT(dest_len == sizeof(pstring));
 218 #endif
 219
 220         if (src_len == 0) {
 221                 ret = srvstr_pull_buf(inbuf, smb_flags2, dest, src,
 222                                       dest_len, flags);
 223         } else {
 224                 ret = srvstr_pull(inbuf, smb_flags2, dest, src,
 225                                   dest_len, src_len, flags);
 226         }
 227
 228         *contains_wcard = False;
 229
 230         if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
 231                 /*
 232                  * For a DFS path the function parse_dfs_path()
 233                  * will do the path processing, just make a copy.
 234                  */
 235                 *err = NT_STATUS_OK;
 236                 return ret;
 237         }
 238
 239         if (lp_posix_pathnames()) {
 240                 *err = check_path_syntax_posix(dest);
 241         } else {
 242                 *err = check_path_syntax_wcard(dest, contains_wcard);
 243         }
 244
 245         return ret;
 246 }
 247
 248 /****************************************************************************
 249  Pull a string and check the path - provide for error return.
 250 ****************************************************************************/
 251
 252 size_t srvstr_get_path(const char *inbuf, uint16 smb_flags2, char *dest,
 253                        const char *src, size_t dest_len, size_t src_len,
 254                        int flags, NTSTATUS *err)
 255 {
 256         size_t ret;
 257 #ifdef DEVELOPER
 258         SMB_ASSERT(dest_len == sizeof(pstring));
 259 #endif
 260
 261         if (src_len == 0) {
 262                 ret = srvstr_pull_buf(inbuf, smb_flags2, dest, src,
 263                                       dest_len, flags);
 264         } else {
 265                 ret = srvstr_pull(inbuf, smb_flags2, dest, src,
 266                                   dest_len, src_len, flags);
 267         }
 268
 269         if (smb_flags2 & FLAGS2_DFS_PATHNAMES) {
 270                 /*
 271                  * For a DFS path the function parse_dfs_path()
 272                  * will do the path processing, just make a copy.
 273                  */
 274                 *err = NT_STATUS_OK;
 275                 return ret;
 276         }
 277
 278         if (lp_posix_pathnames()) {
 279                 *err = check_path_syntax_posix(dest);
 280         } else {
 281                 *err = check_path_syntax(dest);
 282         }
 283
 284         return ret;
 285 }
 286
 287 /****************************************************************************
 288  Check if we have a correct fsp pointing to a file. Replacement for the
 289  CHECK_FSP macro.
 290 ****************************************************************************/
 291
 292 BOOL check_fsp(connection_struct *conn, struct smb_request *req,
 293                files_struct *fsp, struct current_user *user)
 294 {
 295         if (!(fsp) || !(conn)) {
 296                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 297                 return False;
 298         }
 299         if (((conn) != (fsp)->conn) || user->vuid != (fsp)->vuid) {
 300                 reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 301                 return False;
 302         }
 303         if ((fsp)->is_directory) {
 304                 reply_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
 305                 return False;
 306         }
 307         if ((fsp)->fh->fd == -1) {
 308                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 309                 return False;
 310         }
 311         (fsp)->num_smb_operations++;
 312         return True;
 313 }
 314
 315 /****************************************************************************
 316  Check if we have a correct fsp. Replacement for the FSP_BELONGS_CONN macro
 317 ****************************************************************************/
 318
 319 BOOL fsp_belongs_conn(connection_struct *conn, struct smb_request *req,
 320                       files_struct *fsp, struct current_user *user)
 321 {
 322         if ((fsp) && (conn) && ((conn)==(fsp)->conn)
 323             && (current_user.vuid==(fsp)->vuid)) {
 324                 return True;
 325         }
 326
 327         reply_nterror(req, NT_STATUS_INVALID_HANDLE);
 328         return False;
 329 }
 330
 331 /****************************************************************************
 332  Reply to a (netbios-level) special message.
 333 ****************************************************************************/
 334
 335 void reply_special(char *inbuf)
 336 {
 337         int msg_type = CVAL(inbuf,0);
 338         int msg_flags = CVAL(inbuf,1);
 339         fstring name1,name2;
 340         char name_type = 0;
 341
 342         /*
 343          * We only really use 4 bytes of the outbuf, but for the smb_setlen
 344          * calculation & friends (send_smb uses that) we need the full smb
 345          * header.
 346          */
 347         char outbuf[smb_size];
 348
 349         static BOOL already_got_session = False;
 350
 351         *name1 = *name2 = 0;
 352
 353         memset(outbuf, '\0', sizeof(outbuf));
 354
 355         smb_setlen(inbuf,outbuf,0);
 356
 357         switch (msg_type) {
 358         case 0x81: /* session request */
 359
 360                 if (already_got_session) {
 361                         exit_server_cleanly("multiple session request not permitted");
 362                 }
 363
 364                 SCVAL(outbuf,0,0x82);
 365                 SCVAL(outbuf,3,0);
 366                 if (name_len(inbuf+4) > 50 ||
 367                     name_len(inbuf+4 + name_len(inbuf + 4)) > 50) {
 368                         DEBUG(0,("Invalid name length in session request\n"));
 369                         return;
 370                 }
 371                 name_extract(inbuf,4,name1);
 372                 name_type = name_extract(inbuf,4 + name_len(inbuf + 4),name2);
 373                 DEBUG(2,("netbios connect: name1=%s name2=%s\n",
 374                          name1,name2));
 375
 376                 set_local_machine_name(name1, True);
 377                 set_remote_machine_name(name2, True);
 378
 379                 DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
 380                          get_local_machine_name(), get_remote_machine_name(),
 381                          name_type));
 382
 383                 if (name_type == 'R') {
 384                         /* We are being asked for a pathworks session ---
 385                            no thanks! */
 386                         SCVAL(outbuf, 0,0x83);
 387                         break;
 388                 }
 389
 390                 /* only add the client's machine name to the list
 391                    of possibly valid usernames if we are operating
 392                    in share mode security */
 393                 if (lp_security() == SEC_SHARE) {
 394                         add_session_user(get_remote_machine_name());
 395                 }
 396
 397                 reload_services(True);
 398                 reopen_logs();
 399
 400                 already_got_session = True;
 401                 break;
 402
 403         case 0x89: /* session keepalive request
 404                       (some old clients produce this?) */
 405                 SCVAL(outbuf,0,SMBkeepalive);
 406                 SCVAL(outbuf,3,0);
 407                 break;
 408
 409         case 0x82: /* positive session response */
 410         case 0x83: /* negative session response */
 411         case 0x84: /* retarget session response */
 412                 DEBUG(0,("Unexpected session response\n"));
 413                 break;
 414
 415         case SMBkeepalive: /* session keepalive */
 416         default:
 417                 return;
 418         }
 419
 420         DEBUG(5,("init msg_type=0x%x msg_flags=0x%x\n",
 421                     msg_type, msg_flags));
 422
 423         send_smb(smbd_server_fd(), outbuf);
 424         return;
 425 }
 426
 427 /****************************************************************************
 428  Reply to a tcon.
 429  conn POINTER CAN BE NULL HERE !
 430 ****************************************************************************/
 431
 432 int reply_tcon(connection_struct *conn,
 433                char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
 434 {
 435         TALLOC_CTX *ctx;
 436         const char *service;
 437         char *service_buf = NULL;
 438         char *password = NULL;
 439         char *dev = NULL;
 440         int outsize = 0;
 441         uint16 vuid = SVAL(inbuf,smb_uid);
 442         int pwlen=0;
 443         NTSTATUS nt_status;
 444         char *p;
 445         DATA_BLOB password_blob;
 446
 447         START_PROFILE(SMBtcon);
 448
 449         ctx = talloc_init("reply_tcon");
 450         if (!ctx) {
 451                 END_PROFILE(SMBtcon);
 452                 return ERROR_NT(NT_STATUS_NO_MEMORY);
 453         }
 454
 455         p = smb_buf(inbuf)+1;
 456         p += srvstr_pull_buf_talloc(ctx, inbuf, SVAL(inbuf, smb_flg2),
 457                         &service_buf, p, STR_TERMINATE) + 1;
 458         pwlen = srvstr_pull_buf_talloc(ctx, inbuf, SVAL(inbuf, smb_flg2),
 459                         &password, p, STR_TERMINATE) + 1;
 460         p += pwlen;
 461         p += srvstr_pull_buf_talloc(ctx, inbuf, SVAL(inbuf, smb_flg2),
 462                         &dev, p, STR_TERMINATE) + 1;
 463
 464         if (service_buf == NULL || password == NULL || dev == NULL) {
 465                 TALLOC_FREE(ctx);
 466                 END_PROFILE(SMBtcon);
 467                 return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 468         }
 469         p = strrchr_m(service_buf,'\\');
 470         if (p) {
 471                 service = p+1;
 472         } else {
 473                 service = service_buf;
 474         }
 475
 476         password_blob = data_blob(password, pwlen+1);
 477
 478         conn = make_connection(service,password_blob,dev,vuid,&nt_status);
 479
 480         data_blob_clear_free(&password_blob);
 481
 482         if (!conn) {
 483                 TALLOC_FREE(ctx);
 484                 END_PROFILE(SMBtcon);
 485                 return ERROR_NT(nt_status);
 486         }
 487
 488         outsize = set_message(inbuf,outbuf,2,0,True);
 489         SSVAL(outbuf,smb_vwv0,max_recv);
 490         SSVAL(outbuf,smb_vwv1,conn->cnum);
 491         SSVAL(outbuf,smb_tid,conn->cnum);
 492
 493         DEBUG(3,("tcon service=%s cnum=%d\n",
 494                  service, conn->cnum));
 495
 496         END_PROFILE(SMBtcon);
 497         TALLOC_FREE(ctx);
 498         return(outsize);
 499 }
 500
 501 /****************************************************************************
 502  Reply to a tcon and X.
 503  conn POINTER CAN BE NULL HERE !
 504 ****************************************************************************/
 505
 506 void reply_tcon_and_X(connection_struct *conn, struct smb_request *req)
 507 {
 508         char *service = NULL;
 509         DATA_BLOB password;
 510
 511         TALLOC_CTX *ctx = NULL;
 512         /* what the cleint thinks the device is */
 513         char *client_devicetype = NULL;
 514         /* what the server tells the client the share represents */
 515         const char *server_devicetype;
 516         NTSTATUS nt_status;
 517         int passlen;
 518         char *path = NULL;
 519         char *p, *q;
 520         uint16 tcon_flags;
 521
 522         START_PROFILE(SMBtconX);
 523
 524         if (req->wct < 4) {
 525                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 526                 END_PROFILE(SMBtconX);
 527                 return;
 528         }
 529
 530         passlen = SVAL(req->inbuf,smb_vwv3);
 531         tcon_flags = SVAL(req->inbuf,smb_vwv2);
 532
 533         /* we might have to close an old one */
 534         if ((tcon_flags & 0x1) && conn) {
 535                 close_cnum(conn,req->vuid);
 536         }
 537
 538         if ((passlen > MAX_PASS_LEN) || (passlen >= smb_buflen(req->inbuf))) {
 539                 reply_doserror(req, ERRDOS, ERRbuftoosmall);
 540                 END_PROFILE(SMBtconX);
 541                 return;
 542         }
 543
 544         if (global_encrypted_passwords_negotiated) {
 545                 password = data_blob(smb_buf(req->inbuf),passlen);
 546                 if (lp_security() == SEC_SHARE) {
 547                         /*
 548                          * Security = share always has a pad byte
 549                          * after the password.
 550                          */
 551                         p = smb_buf(req->inbuf) + passlen + 1;
 552                 } else {
 553                         p = smb_buf(req->inbuf) + passlen;
 554                 }
 555         } else {
 556                 password = data_blob(smb_buf(req->inbuf),passlen+1);
 557                 /* Ensure correct termination */
 558                 password.data[passlen]=0;
 559                 p = smb_buf(req->inbuf) + passlen + 1;
 560         }
 561
 562         ctx = talloc_init("reply_tcon_and_X");
 563         if (!ctx) {
 564                 data_blob_clear_free(&password);
 565                 reply_nterror(req, NT_STATUS_NO_MEMORY);
 566                 END_PROFILE(SMBtconX);
 567                 return;
 568         }
 569         p += srvstr_pull_buf_talloc(ctx, req->inbuf, req->flags2, &path, p,
 570                              STR_TERMINATE);
 571
 572         if (path == NULL) {
 573                 data_blob_clear_free(&password);
 574                 TALLOC_FREE(ctx);
 575                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 576                 END_PROFILE(SMBtconX);
 577                 return;
 578         }
 579
 580         /*
 581          * the service name can be either: \\server\share
 582          * or share directly like on the DELL PowerVault 705
 583          */
 584         if (*path=='\\') {
 585                 q = strchr_m(path+2,'\\');
 586                 if (!q) {
 587                         data_blob_clear_free(&password);
 588                         TALLOC_FREE(ctx);
 589                         reply_doserror(req, ERRDOS, ERRnosuchshare);
 590                         END_PROFILE(SMBtconX);
 591                         return;
 592                 }
 593                 service = q+1;
 594         } else {
 595                 service = path;
 596         }
 597
 598         p += srvstr_pull_talloc(ctx, req->inbuf, req->flags2,
 599                                 &client_devicetype, p,
 600                                 MIN(6,smb_bufrem(req->inbuf, p)), STR_ASCII);
 601
 602         if (client_devicetype == NULL) {
 603                 data_blob_clear_free(&password);
 604                 TALLOC_FREE(ctx);
 605                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
 606                 END_PROFILE(SMBtconX);
 607                 return;
 608         }
 609
 610         DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
 611
 612         conn = make_connection(service, password, client_devicetype,
 613                                req->vuid, &nt_status);
 614
 615         data_blob_clear_free(&password);
 616
 617         if (!conn) {
 618                 TALLOC_FREE(ctx);
 619                 reply_nterror(req, nt_status);
 620                 END_PROFILE(SMBtconX);
 621                 return;
 622         }
 623
 624         if ( IS_IPC(conn) )
 625                 server_devicetype = "IPC";
 626         else if ( IS_PRINT(conn) )
 627                 server_devicetype = "LPT1:";
 628         else
 629                 server_devicetype = "A:";
 630
 631         if (Protocol < PROTOCOL_NT1) {
 632                 reply_outbuf(req, 2, 0);
 633                 if (message_push_string(&req->outbuf, server_devicetype,
 634                                         STR_TERMINATE|STR_ASCII) == -1) {
 635                         TALLOC_FREE(ctx);
 636                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 637                         END_PROFILE(SMBtconX);
 638                         return;
 639                 }
 640         } else {
 641                 /* NT sets the fstype of IPC$ to the null string */
 642                 const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
 643
 644                 if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
 645                         /* Return permissions. */
 646                         uint32 perm1 = 0;
 647                         uint32 perm2 = 0;
 648
 649                         reply_outbuf(req, 7, 0);
 650
 651                         if (IS_IPC(conn)) {
 652                                 perm1 = FILE_ALL_ACCESS;
 653                                 perm2 = FILE_ALL_ACCESS;
 654                         } else {
 655                                 perm1 = CAN_WRITE(conn) ?
 656                                                 SHARE_ALL_ACCESS :
 657                                                 SHARE_READ_ONLY;
 658                         }
 659
 660                         SIVAL(req->outbuf, smb_vwv3, perm1);
 661                         SIVAL(req->outbuf, smb_vwv5, perm2);
 662                 } else {
 663                         reply_outbuf(req, 3, 0);
 664                 }
 665
 666                 if ((message_push_string(&req->outbuf, server_devicetype,
 667                                          STR_TERMINATE|STR_ASCII) == -1)
 668                     || (message_push_string(&req->outbuf, fstype,
 669                                             STR_TERMINATE) == -1)) {
 670                         TALLOC_FREE(ctx);
 671                         reply_nterror(req, NT_STATUS_NO_MEMORY);
 672                         END_PROFILE(SMBtconX);
 673                         return;
 674                 }
 675
 676                 /* what does setting this bit do? It is set by NT4 and
 677                    may affect the ability to autorun mounted cdroms */
 678                 SSVAL(req->outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS|
 679                       (lp_csc_policy(SNUM(conn)) << 2));
 680
 681                 init_dfsroot(conn, req->inbuf, req->outbuf);
 682         }
 683
 684
 685         DEBUG(3,("tconX service=%s \n",
 686                  service));
 687
 688         /* set the incoming and outgoing tid to the just created one */
 689         SSVAL(req->inbuf,smb_tid,conn->cnum);
 690         SSVAL(req->outbuf,smb_tid,conn->cnum);
 691
 692         TALLOC_FREE(ctx);
 693         END_PROFILE(SMBtconX);
 694
 695         chain_reply_new(req);
 696         return;
 697 }
 698
 699 /****************************************************************************
 700  Reply to an unknown type.
 701 ****************************************************************************/
 702
 703 int reply_unknown(char *inbuf,char *outbuf)
 704 {
 705         int type;
 706         type = CVAL(inbuf,smb_com);
 707
 708         DEBUG(0,("unknown command type (%s): type=%d (0x%X)\n",
 709                  smb_fn_name(type), type, type));
 710
 711         return(ERROR_DOS(ERRSRV,ERRunknownsmb));
 712 }
 713
 714 void reply_unknown_new(struct smb_request *req, uint8 type)
 715 {
 716         DEBUG(0, ("unknown command type (%s): type=%d (0x%X)\n",
 717                   smb_fn_name(type), type, type));
 718         reply_doserror(req, ERRSRV, ERRunknownsmb);
 719         return;
 720 }
 721
 722 /****************************************************************************
 723  Reply to an ioctl.
 724  conn POINTER CAN BE NULL HERE !
 725 ****************************************************************************/
 726
 727 int reply_ioctl(connection_struct *conn,
 728                 char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
 729 {
 730         uint16 device     = SVAL(inbuf,smb_vwv1);
 731         uint16 function   = SVAL(inbuf,smb_vwv2);
 732         uint32 ioctl_code = (device << 16) + function;
 733         int replysize, outsize;
 734         char *p;
 735         START_PROFILE(SMBioctl);
 736
 737         DEBUG(4, ("Received IOCTL (code 0x%x)\n", ioctl_code));
 738
 739         switch (ioctl_code) {
 740             case IOCTL_QUERY_JOB_INFO:
 741                 replysize = 32;
 742                 break;
 743             default:
 744                 END_PROFILE(SMBioctl);
 745                 return(ERROR_DOS(ERRSRV,ERRnosupport));
 746         }
 747
 748         outsize = set_message(inbuf,outbuf,8,replysize+1,True);
 749         SSVAL(outbuf,smb_vwv1,replysize); /* Total data bytes returned */
 750         SSVAL(outbuf,smb_vwv5,replysize); /* Data bytes this buffer */
 751         SSVAL(outbuf,smb_vwv6,52);        /* Offset to data */
 752         p = smb_buf(outbuf) + 1;          /* Allow for alignment */
 753
 754         switch (ioctl_code) {
 755                 case IOCTL_QUERY_JOB_INFO:
 756                 {
 757                         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
 758                         if (!fsp) {
 759                                 END_PROFILE(SMBioctl);
 760                                 return(UNIXERROR(ERRDOS,ERRbadfid));
 761                         }
 762                         SSVAL(p,0,fsp->rap_print_jobid);             /* Job number */
 763                         srvstr_push(outbuf, SVAL(outbuf, smb_flg2), p+2,
 764                                     global_myname(), 15,
 765                                     STR_TERMINATE|STR_ASCII);
 766                         if (conn) {
 767                                 srvstr_push(outbuf, SVAL(outbuf, smb_flg2),
 768                                             p+18, lp_servicename(SNUM(conn)),
 769                                             13, STR_TERMINATE|STR_ASCII);
 770                         }
 771                         break;
 772                 }
 773         }
 774
 775         END_PROFILE(SMBioctl);
 776         return outsize;
 777 }
 778
 779 /****************************************************************************
 780  Strange checkpath NTSTATUS mapping.
 781 ****************************************************************************/
 782
 783 static NTSTATUS map_checkpath_error(const char *inbuf, NTSTATUS status)
 784 {
 785         /* Strange DOS error code semantics only for checkpath... */
 786         if (!(SVAL(inbuf,smb_flg2) & FLAGS2_32_BIT_ERROR_CODES)) {
 787                 if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_INVALID,status)) {
 788                         /* We need to map to ERRbadpath */
 789                         return NT_STATUS_OBJECT_PATH_NOT_FOUND;
 790                 }
 791         }
 792         return status;
 793 }
 794
 795 /****************************************************************************
 796  Reply to a checkpath.
 797 ****************************************************************************/
 798
 799 void reply_checkpath(connection_struct *conn, struct smb_request *req)
 800 {
 801         pstring name;
 802         SMB_STRUCT_STAT sbuf;
 803         NTSTATUS status;
 804
 805         START_PROFILE(SMBcheckpath);
 806
 807         srvstr_get_path((char *)req->inbuf, req->flags2, name,
 808                         smb_buf(req->inbuf) + 1, sizeof(name), 0,
 809                         STR_TERMINATE, &status);
 810         if (!NT_STATUS_IS_OK(status)) {
 811                 status = map_checkpath_error((char *)req->inbuf, status);
 812                 reply_nterror(req, status);
 813                 END_PROFILE(SMBcheckpath);
 814                 return;
 815         }
 816
 817         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES, name);
 818         if (!NT_STATUS_IS_OK(status)) {
 819                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 820                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 821                                         ERRSRV, ERRbadpath);
 822                         END_PROFILE(SMBcheckpath);
 823                         return;
 824                 }
 825                 goto path_err;
 826         }
 827
 828         DEBUG(3,("reply_checkpath %s mode=%d\n", name, (int)SVAL(req->inbuf,smb_vwv0)));
 829
 830         status = unix_convert(conn, name, False, NULL, &sbuf);
 831         if (!NT_STATUS_IS_OK(status)) {
 832                 goto path_err;
 833         }
 834
 835         status = check_name(conn, name);
 836         if (!NT_STATUS_IS_OK(status)) {
 837                 DEBUG(3,("reply_checkpath: check_name of %s failed (%s)\n",name,nt_errstr(status)));
 838                 goto path_err;
 839         }
 840
 841         if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,name,&sbuf) != 0)) {
 842                 DEBUG(3,("reply_checkpath: stat of %s failed (%s)\n",name,strerror(errno)));
 843                 status = map_nt_error_from_unix(errno);
 844                 goto path_err;
 845         }
 846
 847         if (!S_ISDIR(sbuf.st_mode)) {
 848                 reply_botherror(req, NT_STATUS_NOT_A_DIRECTORY,
 849                                 ERRDOS, ERRbadpath);
 850                 END_PROFILE(SMBcheckpath);
 851                 return;
 852         }
 853
 854         reply_outbuf(req, 0, 0);
 855
 856         END_PROFILE(SMBcheckpath);
 857         return;
 858
 859   path_err:
 860
 861         END_PROFILE(SMBcheckpath);
 862
 863         /* We special case this - as when a Windows machine
 864                 is parsing a path is steps through the components
 865                 one at a time - if a component fails it expects
 866                 ERRbadpath, not ERRbadfile.
 867         */
 868         status = map_checkpath_error((char *)req->inbuf, status);
 869         if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 870                 /*
 871                  * Windows returns different error codes if
 872                  * the parent directory is valid but not the
 873                  * last component - it returns NT_STATUS_OBJECT_NAME_NOT_FOUND
 874                  * for that case and NT_STATUS_OBJECT_PATH_NOT_FOUND
 875                  * if the path is invalid.
 876                  */
 877                 reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 878                                 ERRDOS, ERRbadpath);
 879                 return;
 880         }
 881
 882         reply_nterror(req, status);
 883 }
 884
 885 /****************************************************************************
 886  Reply to a getatr.
 887 ****************************************************************************/
 888
 889 void reply_getatr(connection_struct *conn, struct smb_request *req)
 890 {
 891         pstring fname;
 892         SMB_STRUCT_STAT sbuf;
 893         int mode=0;
 894         SMB_OFF_T size=0;
 895         time_t mtime=0;
 896         char *p;
 897         NTSTATUS status;
 898
 899         START_PROFILE(SMBgetatr);
 900
 901         p = smb_buf(req->inbuf) + 1;
 902         p += srvstr_get_path((char *)req->inbuf, req->flags2, fname, p,
 903                              sizeof(fname), 0, STR_TERMINATE, &status);
 904         if (!NT_STATUS_IS_OK(status)) {
 905                 reply_nterror(req, status);
 906                 END_PROFILE(SMBgetatr);
 907                 return;
 908         }
 909
 910         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
 911                                  fname);
 912         if (!NT_STATUS_IS_OK(status)) {
 913                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
 914                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
 915                                         ERRSRV, ERRbadpath);
 916                         END_PROFILE(SMBgetatr);
 917                         return;
 918                 }
 919                 reply_nterror(req, status);
 920                 END_PROFILE(SMBgetatr);
 921                 return;
 922         }
 923
 924         /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
 925                 under WfWg - weird! */
 926         if (*fname == '\0') {
 927                 mode = aHIDDEN | aDIR;
 928                 if (!CAN_WRITE(conn)) {
 929                         mode |= aRONLY;
 930                 }
 931                 size = 0;
 932                 mtime = 0;
 933         } else {
 934                 status = unix_convert(conn, fname, False, NULL,&sbuf);
 935                 if (!NT_STATUS_IS_OK(status)) {
 936                         reply_nterror(req, status);
 937                         END_PROFILE(SMBgetatr);
 938                         return;
 939                 }
 940                 status = check_name(conn, fname);
 941                 if (!NT_STATUS_IS_OK(status)) {
 942                         DEBUG(3,("reply_getatr: check_name of %s failed (%s)\n",fname,nt_errstr(status)));
 943                         reply_nterror(req, status);
 944                         END_PROFILE(SMBgetatr);
 945                         return;
 946                 }
 947                 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn,fname,&sbuf) != 0)) {
 948                         DEBUG(3,("reply_getatr: stat of %s failed (%s)\n",fname,strerror(errno)));
 949                         reply_unixerror(req, ERRDOS,ERRbadfile);
 950                         END_PROFILE(SMBgetatr);
 951                         return;
 952                 }
 953
 954                 mode = dos_mode(conn,fname,&sbuf);
 955                 size = sbuf.st_size;
 956                 mtime = sbuf.st_mtime;
 957                 if (mode & aDIR) {
 958                         size = 0;
 959                 }
 960         }
 961
 962         reply_outbuf(req, 10, 0);
 963
 964         SSVAL(req->outbuf,smb_vwv0,mode);
 965         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
 966                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime & ~1);
 967         } else {
 968                 srv_put_dos_date3((char *)req->outbuf,smb_vwv1,mtime);
 969         }
 970         SIVAL(req->outbuf,smb_vwv3,(uint32)size);
 971
 972         if (Protocol >= PROTOCOL_NT1) {
 973                 SSVAL(req->outbuf, smb_flg2,
 974                       SVAL(req->outbuf, smb_flg2) | FLAGS2_IS_LONG_NAME);
 975         }
 976
 977         DEBUG(3,("reply_getatr: name=%s mode=%d size=%u\n", fname, mode, (unsigned int)size ) );
 978
 979         END_PROFILE(SMBgetatr);
 980         return;
 981 }
 982
 983 /****************************************************************************
 984  Reply to a setatr.
 985 ****************************************************************************/
 986
 987 void reply_setatr(connection_struct *conn, struct smb_request *req)
 988 {
 989         pstring fname;
 990         int mode;
 991         time_t mtime;
 992         SMB_STRUCT_STAT sbuf;
 993         char *p;
 994         NTSTATUS status;
 995
 996         START_PROFILE(SMBsetatr);
 997
 998         if (req->wct < 2) {
 999                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1000                 return;
1001         }
1002
1003         p = smb_buf(req->inbuf) + 1;
1004         p += srvstr_get_path((char *)req->inbuf, req->flags2, fname, p,
1005                              sizeof(fname), 0, STR_TERMINATE, &status);
1006         if (!NT_STATUS_IS_OK(status)) {
1007                 reply_nterror(req, status);
1008                 END_PROFILE(SMBsetatr);
1009                 return;
1010         }
1011
1012         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
1013                                  fname);
1014         if (!NT_STATUS_IS_OK(status)) {
1015                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1016                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1017                                         ERRSRV, ERRbadpath);
1018                         END_PROFILE(SMBsetatr);
1019                         return;
1020                 }
1021                 reply_nterror(req, status);
1022                 END_PROFILE(SMBsetatr);
1023                 return;
1024         }
1025
1026         status = unix_convert(conn, fname, False, NULL, &sbuf);
1027         if (!NT_STATUS_IS_OK(status)) {
1028                 reply_nterror(req, status);
1029                 END_PROFILE(SMBsetatr);
1030                 return;
1031         }
1032
1033         status = check_name(conn, fname);
1034         if (!NT_STATUS_IS_OK(status)) {
1035                 reply_nterror(req, status);
1036                 END_PROFILE(SMBsetatr);
1037                 return;
1038         }
1039
1040         if (fname[0] == '.' && fname[1] == '\0') {
1041                 /*
1042                  * Not sure here is the right place to catch this
1043                  * condition. Might be moved to somewhere else later -- vl
1044                  */
1045                 reply_nterror(req, NT_STATUS_ACCESS_DENIED);
1046                 END_PROFILE(SMBsetatr);
1047                 return;
1048         }
1049
1050         mode = SVAL(req->inbuf,smb_vwv0);
1051         mtime = srv_make_unix_date3(req->inbuf+smb_vwv1);
1052
1053         if (mode != FILE_ATTRIBUTE_NORMAL) {
1054                 if (VALID_STAT_OF_DIR(sbuf))
1055                         mode |= aDIR;
1056                 else
1057                         mode &= ~aDIR;
1058
1059                 if (file_set_dosmode(conn,fname,mode,&sbuf,False) != 0) {
1060                         reply_unixerror(req, ERRDOS, ERRnoaccess);
1061                         END_PROFILE(SMBsetatr);
1062                         return;
1063                 }
1064         }
1065
1066         if (!set_filetime(conn,fname,convert_time_t_to_timespec(mtime))) {
1067                 reply_unixerror(req, ERRDOS, ERRnoaccess);
1068                 END_PROFILE(SMBsetatr);
1069                 return;
1070         }
1071
1072         reply_outbuf(req, 0, 0);
1073
1074         DEBUG( 3, ( "setatr name=%s mode=%d\n", fname, mode ) );
1075
1076         END_PROFILE(SMBsetatr);
1077         return;
1078 }
1079
1080 /****************************************************************************
1081  Reply to a dskattr.
1082 ****************************************************************************/
1083
1084 void reply_dskattr(connection_struct *conn, struct smb_request *req)
1085 {
1086         SMB_BIG_UINT dfree,dsize,bsize;
1087         START_PROFILE(SMBdskattr);
1088
1089         if (get_dfree_info(conn,".",True,&bsize,&dfree,&dsize) == (SMB_BIG_UINT)-1) {
1090                 reply_unixerror(req, ERRHRD, ERRgeneral);
1091                 END_PROFILE(SMBdskattr);
1092                 return;
1093         }
1094
1095         reply_outbuf(req, 5, 0);
1096
1097         if (Protocol <= PROTOCOL_LANMAN2) {
1098                 double total_space, free_space;
1099                 /* we need to scale this to a number that DOS6 can handle. We
1100                    use floating point so we can handle large drives on systems
1101                    that don't have 64 bit integers
1102
1103                    we end up displaying a maximum of 2G to DOS systems
1104                 */
1105                 total_space = dsize * (double)bsize;
1106                 free_space = dfree * (double)bsize;
1107
1108                 dsize = (total_space+63*512) / (64*512);
1109                 dfree = (free_space+63*512) / (64*512);
1110
1111                 if (dsize > 0xFFFF) dsize = 0xFFFF;
1112                 if (dfree > 0xFFFF) dfree = 0xFFFF;
1113
1114                 SSVAL(req->outbuf,smb_vwv0,dsize);
1115                 SSVAL(req->outbuf,smb_vwv1,64); /* this must be 64 for dos systems */
1116                 SSVAL(req->outbuf,smb_vwv2,512); /* and this must be 512 */
1117                 SSVAL(req->outbuf,smb_vwv3,dfree);
1118         } else {
1119                 SSVAL(req->outbuf,smb_vwv0,dsize);
1120                 SSVAL(req->outbuf,smb_vwv1,bsize/512);
1121                 SSVAL(req->outbuf,smb_vwv2,512);
1122                 SSVAL(req->outbuf,smb_vwv3,dfree);
1123         }
1124
1125         DEBUG(3,("dskattr dfree=%d\n", (unsigned int)dfree));
1126
1127         END_PROFILE(SMBdskattr);
1128         return;
1129 }
1130
1131 /****************************************************************************
1132  Reply to a search.
1133  Can be called from SMBsearch, SMBffirst or SMBfunique.
1134 ****************************************************************************/
1135
1136 int reply_search(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
1137 {
1138         pstring mask;
1139         pstring directory;
1140         pstring fname;
1141         SMB_OFF_T size;
1142         uint32 mode;
1143         time_t date;
1144         uint32 dirtype;
1145         int outsize = 0;
1146         unsigned int numentries = 0;
1147         unsigned int maxentries = 0;
1148         BOOL finished = False;
1149         char *p;
1150         int status_len;
1151         pstring path;
1152         char status[21];
1153         int dptr_num= -1;
1154         BOOL check_descend = False;
1155         BOOL expect_close = False;
1156         NTSTATUS nt_status;
1157         BOOL mask_contains_wcard = False;
1158         BOOL allow_long_path_components = (SVAL(inbuf,smb_flg2) & FLAGS2_LONG_PATH_COMPONENTS) ? True : False;
1159
1160         START_PROFILE(SMBsearch);
1161
1162         if (lp_posix_pathnames()) {
1163                 END_PROFILE(SMBsearch);
1164                 return reply_unknown(inbuf, outbuf);
1165         }
1166
1167         *mask = *directory = *fname = 0;
1168
1169         /* If we were called as SMBffirst then we must expect close. */
1170         if(CVAL(inbuf,smb_com) == SMBffirst) {
1171                 expect_close = True;
1172         }
1173
1174         outsize = set_message(inbuf,outbuf,1,3,True);
1175         maxentries = SVAL(inbuf,smb_vwv0);
1176         dirtype = SVAL(inbuf,smb_vwv1);
1177         p = smb_buf(inbuf) + 1;
1178         p += srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), path, p,
1179                                    sizeof(path), 0, STR_TERMINATE, &nt_status,
1180                                    &mask_contains_wcard);
1181         if (!NT_STATUS_IS_OK(nt_status)) {
1182                 END_PROFILE(SMBsearch);
1183                 return ERROR_NT(nt_status);
1184         }
1185
1186         nt_status = resolve_dfspath_wcard(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, path, &mask_contains_wcard);
1187         if (!NT_STATUS_IS_OK(nt_status)) {
1188                 END_PROFILE(SMBsearch);
1189                 if (NT_STATUS_EQUAL(nt_status,NT_STATUS_PATH_NOT_COVERED)) {
1190                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
1191                 }
1192                 return ERROR_NT(nt_status);
1193         }
1194
1195         p++;
1196         status_len = SVAL(p, 0);
1197         p += 2;
1198
1199         /* dirtype &= ~aDIR; */
1200
1201         if (status_len == 0) {
1202                 SMB_STRUCT_STAT sbuf;
1203
1204                 pstrcpy(directory,path);
1205                 nt_status = unix_convert(conn, directory, True, NULL, &sbuf);
1206                 if (!NT_STATUS_IS_OK(nt_status)) {
1207                         END_PROFILE(SMBsearch);
1208                         return ERROR_NT(nt_status);
1209                 }
1210
1211                 nt_status = check_name(conn, directory);
1212                 if (!NT_STATUS_IS_OK(nt_status)) {
1213                         END_PROFILE(SMBsearch);
1214                         return ERROR_NT(nt_status);
1215                 }
1216
1217                 p = strrchr_m(directory,'/');
1218                 if (!p) {
1219                         pstrcpy(mask,directory);
1220                         pstrcpy(directory,".");
1221                 } else {
1222                         *p = 0;
1223                         pstrcpy(mask,p+1);
1224                 }
1225
1226                 if (*directory == '\0') {
1227                         pstrcpy(directory,".");
1228                 }
1229                 memset((char *)status,'\0',21);
1230                 SCVAL(status,0,(dirtype & 0x1F));
1231         } else {
1232                 int status_dirtype;
1233
1234                 memcpy(status,p,21);
1235                 status_dirtype = CVAL(status,0) & 0x1F;
1236                 if (status_dirtype != (dirtype & 0x1F)) {
1237                         dirtype = status_dirtype;
1238                 }
1239
1240                 conn->dirptr = dptr_fetch(status+12,&dptr_num);
1241                 if (!conn->dirptr) {
1242                         goto SearchEmpty;
1243                 }
1244                 string_set(&conn->dirpath,dptr_path(dptr_num));
1245                 pstrcpy(mask, dptr_wcard(dptr_num));
1246                 /*
1247                  * For a 'continue' search we have no string. So
1248                  * check from the initial saved string.
1249                  */
1250                 mask_contains_wcard = ms_has_wild(mask);
1251         }
1252
1253         p = smb_buf(outbuf) + 3;
1254
1255         if (status_len == 0) {
1256                 nt_status = dptr_create(conn,
1257                                         directory,
1258                                         True,
1259                                         expect_close,
1260                                         SVAL(inbuf,smb_pid),
1261                                         mask,
1262                                         mask_contains_wcard,
1263                                         dirtype,
1264                                         &conn->dirptr);
1265                 if (!NT_STATUS_IS_OK(nt_status)) {
1266                         return ERROR_NT(nt_status);
1267                 }
1268                 dptr_num = dptr_dnum(conn->dirptr);
1269         } else {
1270                 dirtype = dptr_attr(dptr_num);
1271         }
1272
1273         DEBUG(4,("dptr_num is %d\n",dptr_num));
1274
1275         if ((dirtype&0x1F) == aVOLID) {
1276                 memcpy(p,status,21);
1277                 make_dir_struct(p,"???????????",volume_label(SNUM(conn)),
1278                                 0,aVOLID,0,!allow_long_path_components);
1279                 dptr_fill(p+12,dptr_num);
1280                 if (dptr_zero(p+12) && (status_len==0)) {
1281                         numentries = 1;
1282                 } else {
1283                         numentries = 0;
1284                 }
1285                 p += DIR_STRUCT_SIZE;
1286         } else {
1287                 unsigned int i;
1288                 maxentries = MIN(maxentries, ((BUFFER_SIZE - (p - outbuf))/DIR_STRUCT_SIZE));
1289
1290                 DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
1291                         conn->dirpath,lp_dontdescend(SNUM(conn))));
1292                 if (in_list(conn->dirpath, lp_dontdescend(SNUM(conn)),True)) {
1293                         check_descend = True;
1294                 }
1295
1296                 for (i=numentries;(i<maxentries) && !finished;i++) {
1297                         finished = !get_dir_entry(conn,mask,dirtype,fname,&size,&mode,&date,check_descend);
1298                         if (!finished) {
1299                                 memcpy(p,status,21);
1300                                 make_dir_struct(p,mask,fname,size, mode,date,
1301                                                 !allow_long_path_components);
1302                                 if (!dptr_fill(p+12,dptr_num)) {
1303                                         break;
1304                                 }
1305                                 numentries++;
1306                                 p += DIR_STRUCT_SIZE;
1307                         }
1308                 }
1309         }
1310
1311   SearchEmpty:
1312
1313         /* If we were called as SMBffirst with smb_search_id == NULL
1314                 and no entries were found then return error and close dirptr
1315                 (X/Open spec) */
1316
1317         if (numentries == 0) {
1318                 dptr_close(&dptr_num);
1319         } else if(expect_close && status_len == 0) {
1320                 /* Close the dptr - we know it's gone */
1321                 dptr_close(&dptr_num);
1322         }
1323
1324         /* If we were called as SMBfunique, then we can close the dirptr now ! */
1325         if(dptr_num >= 0 && CVAL(inbuf,smb_com) == SMBfunique) {
1326                 dptr_close(&dptr_num);
1327         }
1328
1329         if ((numentries == 0) && !mask_contains_wcard) {
1330                 return ERROR_BOTH(STATUS_NO_MORE_FILES,ERRDOS,ERRnofiles);
1331         }
1332
1333         SSVAL(outbuf,smb_vwv0,numentries);
1334         SSVAL(outbuf,smb_vwv1,3 + numentries * DIR_STRUCT_SIZE);
1335         SCVAL(smb_buf(outbuf),0,5);
1336         SSVAL(smb_buf(outbuf),1,numentries*DIR_STRUCT_SIZE);
1337
1338         /* The replies here are never long name. */
1339         SSVAL(outbuf,smb_flg2,SVAL(outbuf, smb_flg2) & (~FLAGS2_IS_LONG_NAME));
1340         if (!allow_long_path_components) {
1341                 SSVAL(outbuf,smb_flg2,SVAL(outbuf, smb_flg2) & (~FLAGS2_LONG_PATH_COMPONENTS));
1342         }
1343
1344         /* This SMB *always* returns ASCII names. Remove the unicode bit in flags2. */
1345         SSVAL(outbuf,smb_flg2, (SVAL(outbuf, smb_flg2) & (~FLAGS2_UNICODE_STRINGS)));
1346
1347         outsize += DIR_STRUCT_SIZE*numentries;
1348         smb_setlen(inbuf,outbuf,outsize - 4);
1349
1350         if ((! *directory) && dptr_path(dptr_num))
1351                 slprintf(directory, sizeof(directory)-1, "(%s)",dptr_path(dptr_num));
1352
1353         DEBUG( 4, ( "%s mask=%s path=%s dtype=%d nument=%u of %u\n",
1354                 smb_fn_name(CVAL(inbuf,smb_com)),
1355                 mask, directory, dirtype, numentries, maxentries ) );
1356
1357         END_PROFILE(SMBsearch);
1358         return(outsize);
1359 }
1360
1361 /****************************************************************************
1362  Reply to a fclose (stop directory search).
1363 ****************************************************************************/
1364
1365 int reply_fclose(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
1366 {
1367         int outsize = 0;
1368         int status_len;
1369         pstring path;
1370         char status[21];
1371         int dptr_num= -2;
1372         char *p;
1373         NTSTATUS err;
1374         BOOL path_contains_wcard = False;
1375
1376         START_PROFILE(SMBfclose);
1377
1378         if (lp_posix_pathnames()) {
1379                 END_PROFILE(SMBfclose);
1380                 return reply_unknown(inbuf, outbuf);
1381         }
1382
1383         outsize = set_message(inbuf,outbuf,1,0,True);
1384         p = smb_buf(inbuf) + 1;
1385         p += srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), path, p,
1386                                    sizeof(path), 0, STR_TERMINATE, &err,
1387                                    &path_contains_wcard);
1388         if (!NT_STATUS_IS_OK(err)) {
1389                 END_PROFILE(SMBfclose);
1390                 return ERROR_NT(err);
1391         }
1392         p++;
1393         status_len = SVAL(p,0);
1394         p += 2;
1395
1396         if (status_len == 0) {
1397                 END_PROFILE(SMBfclose);
1398                 return ERROR_DOS(ERRSRV,ERRsrverror);
1399         }
1400
1401         memcpy(status,p,21);
1402
1403         if(dptr_fetch(status+12,&dptr_num)) {
1404                 /*  Close the dptr - we know it's gone */
1405                 dptr_close(&dptr_num);
1406         }
1407
1408         SSVAL(outbuf,smb_vwv0,0);
1409
1410         DEBUG(3,("search close\n"));
1411
1412         END_PROFILE(SMBfclose);
1413         return(outsize);
1414 }
1415
1416 /****************************************************************************
1417  Reply to an open.
1418 ****************************************************************************/
1419
1420 void reply_open(connection_struct *conn, struct smb_request *req)
1421 {
1422         pstring fname;
1423         uint32 fattr=0;
1424         SMB_OFF_T size = 0;
1425         time_t mtime=0;
1426         int info;
1427         SMB_STRUCT_STAT sbuf;
1428         files_struct *fsp;
1429         int oplock_request;
1430         int deny_mode;
1431         uint32 dos_attr;
1432         uint32 access_mask;
1433         uint32 share_mode;
1434         uint32 create_disposition;
1435         uint32 create_options = 0;
1436         NTSTATUS status;
1437
1438         START_PROFILE(SMBopen);
1439
1440         if (req->wct < 2) {
1441                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1442                 END_PROFILE(SMBopen);
1443                 return;
1444         }
1445
1446         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1447         deny_mode = SVAL(req->inbuf,smb_vwv0);
1448         dos_attr = SVAL(req->inbuf,smb_vwv1);
1449
1450         srvstr_get_path((char *)req->inbuf, req->flags2, fname,
1451                         smb_buf(req->inbuf)+1, sizeof(fname), 0,
1452                         STR_TERMINATE, &status);
1453         if (!NT_STATUS_IS_OK(status)) {
1454                 reply_nterror(req, status);
1455                 END_PROFILE(SMBopen);
1456                 return;
1457         }
1458
1459         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
1460                                  fname);
1461         if (!NT_STATUS_IS_OK(status)) {
1462                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1463                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1464                                         ERRSRV, ERRbadpath);
1465                         END_PROFILE(SMBopen);
1466                         return;
1467                 }
1468                 reply_nterror(req, status);
1469                 END_PROFILE(SMBopen);
1470                 return;
1471         }
1472
1473         status = unix_convert(conn, fname, False, NULL, &sbuf);
1474         if (!NT_STATUS_IS_OK(status)) {
1475                 reply_nterror(req, status);
1476                 END_PROFILE(SMBopen);
1477                 return;
1478         }
1479
1480         status = check_name(conn, fname);
1481         if (!NT_STATUS_IS_OK(status)) {
1482                 reply_nterror(req, status);
1483                 END_PROFILE(SMBopen);
1484                 return;
1485         }
1486
1487         if (!map_open_params_to_ntcreate(fname, deny_mode, OPENX_FILE_EXISTS_OPEN,
1488                         &access_mask, &share_mode, &create_disposition, &create_options)) {
1489                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1490                 END_PROFILE(SMBopen);
1491                 return;
1492         }
1493
1494         status = open_file_ntcreate(conn, req, fname, &sbuf,
1495                         access_mask,
1496                         share_mode,
1497                         create_disposition,
1498                         create_options,
1499                         dos_attr,
1500                         oplock_request,
1501                         &info, &fsp);
1502
1503         if (!NT_STATUS_IS_OK(status)) {
1504                 if (open_was_deferred(req->mid)) {
1505                         /* We have re-scheduled this call. */
1506                         END_PROFILE(SMBopen);
1507                         return;
1508                 }
1509                 reply_nterror(req, status);
1510                 END_PROFILE(SMBopen);
1511                 return;
1512         }
1513
1514         size = sbuf.st_size;
1515         fattr = dos_mode(conn,fname,&sbuf);
1516         mtime = sbuf.st_mtime;
1517
1518         if (fattr & aDIR) {
1519                 DEBUG(3,("attempt to open a directory %s\n",fname));
1520                 close_file(fsp,ERROR_CLOSE);
1521                 reply_doserror(req, ERRDOS,ERRnoaccess);
1522                 END_PROFILE(SMBopen);
1523                 return;
1524         }
1525
1526         reply_outbuf(req, 7, 0);
1527         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1528         SSVAL(req->outbuf,smb_vwv1,fattr);
1529         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1530                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime & ~1);
1531         } else {
1532                 srv_put_dos_date3((char *)req->outbuf,smb_vwv2,mtime);
1533         }
1534         SIVAL(req->outbuf,smb_vwv4,(uint32)size);
1535         SSVAL(req->outbuf,smb_vwv6,deny_mode);
1536
1537         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1538                 SCVAL(req->outbuf,smb_flg,
1539                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1540         }
1541
1542         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1543                 SCVAL(req->outbuf,smb_flg,
1544                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1545         }
1546         END_PROFILE(SMBopen);
1547         return;
1548 }
1549
1550 /****************************************************************************
1551  Reply to an open and X.
1552 ****************************************************************************/
1553
1554 void reply_open_and_X(connection_struct *conn, struct smb_request *req)
1555 {
1556         pstring fname;
1557         uint16 open_flags;
1558         int deny_mode;
1559         uint32 smb_attr;
1560         /* Breakout the oplock request bits so we can set the
1561                 reply bits separately. */
1562         int ex_oplock_request;
1563         int core_oplock_request;
1564         int oplock_request;
1565 #if 0
1566         int smb_sattr = SVAL(req->inbuf,smb_vwv4);
1567         uint32 smb_time = make_unix_date3(req->inbuf+smb_vwv6);
1568 #endif
1569         int smb_ofun;
1570         uint32 fattr=0;
1571         int mtime=0;
1572         SMB_STRUCT_STAT sbuf;
1573         int smb_action = 0;
1574         files_struct *fsp;
1575         NTSTATUS status;
1576         SMB_BIG_UINT allocation_size;
1577         ssize_t retval = -1;
1578         uint32 access_mask;
1579         uint32 share_mode;
1580         uint32 create_disposition;
1581         uint32 create_options = 0;
1582
1583         START_PROFILE(SMBopenX);
1584
1585         if (req->wct < 15) {
1586                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1587                 END_PROFILE(SMBopenX);
1588                 return;
1589         }
1590
1591         open_flags = SVAL(req->inbuf,smb_vwv2);
1592         deny_mode = SVAL(req->inbuf,smb_vwv3);
1593         smb_attr = SVAL(req->inbuf,smb_vwv5);
1594         ex_oplock_request = EXTENDED_OPLOCK_REQUEST(req->inbuf);
1595         core_oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1596         oplock_request = ex_oplock_request | core_oplock_request;
1597         smb_ofun = SVAL(req->inbuf,smb_vwv8);
1598         allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv9);
1599
1600         /* If it's an IPC, pass off the pipe handler. */
1601         if (IS_IPC(conn)) {
1602                 if (lp_nt_pipe_support()) {
1603                         reply_open_pipe_and_X(conn, req);
1604                 } else {
1605                         reply_doserror(req, ERRSRV, ERRaccess);
1606                 }
1607                 END_PROFILE(SMBopenX);
1608                 return;
1609         }
1610
1611         /* XXXX we need to handle passed times, sattr and flags */
1612         srvstr_get_path((char *)req->inbuf, req->flags2, fname,
1613                         smb_buf(req->inbuf), sizeof(fname), 0, STR_TERMINATE,
1614                         &status);
1615         if (!NT_STATUS_IS_OK(status)) {
1616                 reply_nterror(req, status);
1617                 END_PROFILE(SMBopenX);
1618                 return;
1619         }
1620
1621         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
1622                                  fname);
1623         if (!NT_STATUS_IS_OK(status)) {
1624                 END_PROFILE(SMBopenX);
1625                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1626                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1627                                         ERRSRV, ERRbadpath);
1628                         return;
1629                 }
1630                 reply_nterror(req, status);
1631                 return;
1632         }
1633
1634         status = unix_convert(conn, fname, False, NULL, &sbuf);
1635         if (!NT_STATUS_IS_OK(status)) {
1636                 reply_nterror(req, status);
1637                 END_PROFILE(SMBopenX);
1638                 return;
1639         }
1640
1641         status = check_name(conn, fname);
1642         if (!NT_STATUS_IS_OK(status)) {
1643                 reply_nterror(req, status);
1644                 END_PROFILE(SMBopenX);
1645                 return;
1646         }
1647
1648         if (!map_open_params_to_ntcreate(fname, deny_mode, smb_ofun,
1649                                 &access_mask,
1650                                 &share_mode,
1651                                 &create_disposition,
1652                                 &create_options)) {
1653                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRbadaccess));
1654                 END_PROFILE(SMBopenX);
1655                 return;
1656         }
1657
1658         status = open_file_ntcreate(conn, req, fname, &sbuf,
1659                         access_mask,
1660                         share_mode,
1661                         create_disposition,
1662                         create_options,
1663                         smb_attr,
1664                         oplock_request,
1665                         &smb_action, &fsp);
1666
1667         if (!NT_STATUS_IS_OK(status)) {
1668                 END_PROFILE(SMBopenX);
1669                 if (open_was_deferred(req->mid)) {
1670                         /* We have re-scheduled this call. */
1671                         return;
1672                 }
1673                 reply_nterror(req, status);
1674                 return;
1675         }
1676
1677         /* Setting the "size" field in vwv9 and vwv10 causes the file to be set to this size,
1678            if the file is truncated or created. */
1679         if (((smb_action == FILE_WAS_CREATED) || (smb_action == FILE_WAS_OVERWRITTEN)) && allocation_size) {
1680                 fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
1681                 if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
1682                         close_file(fsp,ERROR_CLOSE);
1683                         reply_nterror(req, NT_STATUS_DISK_FULL);
1684                         END_PROFILE(SMBopenX);
1685                         return;
1686                 }
1687                 retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
1688                 if (retval < 0) {
1689                         close_file(fsp,ERROR_CLOSE);
1690                         reply_nterror(req, NT_STATUS_DISK_FULL);
1691                         END_PROFILE(SMBopenX);
1692                         return;
1693                 }
1694                 sbuf.st_size = get_allocation_size(conn,fsp,&sbuf);
1695         }
1696
1697         fattr = dos_mode(conn,fname,&sbuf);
1698         mtime = sbuf.st_mtime;
1699         if (fattr & aDIR) {
1700                 close_file(fsp,ERROR_CLOSE);
1701                 reply_doserror(req, ERRDOS, ERRnoaccess);
1702                 END_PROFILE(SMBopenX);
1703                 return;
1704         }
1705
1706         /* If the caller set the extended oplock request bit
1707                 and we granted one (by whatever means) - set the
1708                 correct bit for extended oplock reply.
1709         */
1710
1711         if (ex_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1712                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1713         }
1714
1715         if(ex_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1716                 smb_action |= EXTENDED_OPLOCK_GRANTED;
1717         }
1718
1719         /* If the caller set the core oplock request bit
1720                 and we granted one (by whatever means) - set the
1721                 correct bit for core oplock reply.
1722         */
1723
1724         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1725                 reply_outbuf(req, 19, 0);
1726         } else {
1727                 reply_outbuf(req, 15, 0);
1728         }
1729
1730         if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
1731                 SCVAL(req->outbuf, smb_flg,
1732                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1733         }
1734
1735         if(core_oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1736                 SCVAL(req->outbuf, smb_flg,
1737                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1738         }
1739
1740         SSVAL(req->outbuf,smb_vwv2,fsp->fnum);
1741         SSVAL(req->outbuf,smb_vwv3,fattr);
1742         if(lp_dos_filetime_resolution(SNUM(conn)) ) {
1743                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime & ~1);
1744         } else {
1745                 srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
1746         }
1747         SIVAL(req->outbuf,smb_vwv6,(uint32)sbuf.st_size);
1748         SSVAL(req->outbuf,smb_vwv8,GET_OPENX_MODE(deny_mode));
1749         SSVAL(req->outbuf,smb_vwv11,smb_action);
1750
1751         if (open_flags & EXTENDED_RESPONSE_REQUIRED) {
1752                 SIVAL(req->outbuf, smb_vwv15, STD_RIGHT_ALL_ACCESS);
1753         }
1754
1755         END_PROFILE(SMBopenX);
1756         chain_reply_new(req);
1757         return;
1758 }
1759
1760 /****************************************************************************
1761  Reply to a SMBulogoffX.
1762  conn POINTER CAN BE NULL HERE !
1763 ****************************************************************************/
1764
1765 void reply_ulogoffX(connection_struct *conn, struct smb_request *req)
1766 {
1767         user_struct *vuser;
1768
1769         START_PROFILE(SMBulogoffX);
1770
1771         vuser = get_valid_user_struct(req->vuid);
1772
1773         if(vuser == NULL) {
1774                 DEBUG(3,("ulogoff, vuser id %d does not map to user.\n",
1775                          req->vuid));
1776         }
1777
1778         /* in user level security we are supposed to close any files
1779                 open by this user */
1780         if ((vuser != NULL) && (lp_security() != SEC_SHARE)) {
1781                 file_close_user(req->vuid);
1782         }
1783
1784         invalidate_vuid(req->vuid);
1785
1786         reply_outbuf(req, 2, 0);
1787
1788         DEBUG( 3, ( "ulogoffX vuid=%d\n", req->vuid ) );
1789
1790         END_PROFILE(SMBulogoffX);
1791         chain_reply_new(req);
1792 }
1793
1794 /****************************************************************************
1795  Reply to a mknew or a create.
1796 ****************************************************************************/
1797
1798 void reply_mknew(connection_struct *conn, struct smb_request *req)
1799 {
1800         pstring fname;
1801         int com;
1802         uint32 fattr = 0;
1803         struct timespec ts[2];
1804         files_struct *fsp;
1805         int oplock_request = 0;
1806         SMB_STRUCT_STAT sbuf;
1807         NTSTATUS status;
1808         uint32 access_mask = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
1809         uint32 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1810         uint32 create_disposition;
1811         uint32 create_options = 0;
1812
1813         START_PROFILE(SMBcreate);
1814
1815         if (req->wct < 3) {
1816                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1817                 END_PROFILE(SMBcreate);
1818                 return;
1819         }
1820
1821         fattr = SVAL(req->inbuf,smb_vwv0);
1822         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1823         com = SVAL(req->inbuf,smb_com);
1824
1825         ts[1] =convert_time_t_to_timespec(
1826                         srv_make_unix_date3(req->inbuf + smb_vwv1));
1827                         /* mtime. */
1828
1829         srvstr_get_path((char *)req->inbuf, req->flags2, fname,
1830                         smb_buf(req->inbuf) + 1, sizeof(fname), 0,
1831                         STR_TERMINATE, &status);
1832         if (!NT_STATUS_IS_OK(status)) {
1833                 reply_nterror(req, status);
1834                 END_PROFILE(SMBcreate);
1835                 return;
1836         }
1837
1838         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
1839                         fname);
1840         if (!NT_STATUS_IS_OK(status)) {
1841                 END_PROFILE(SMBcreate);
1842                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1843                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1844                                         ERRSRV, ERRbadpath);
1845                         return;
1846                 }
1847                 reply_nterror(req, status);
1848                 return;
1849         }
1850
1851         status = unix_convert(conn, fname, False, NULL, &sbuf);
1852         if (!NT_STATUS_IS_OK(status)) {
1853                 reply_nterror(req, status);
1854                 END_PROFILE(SMBcreate);
1855                 return;
1856         }
1857
1858         status = check_name(conn, fname);
1859         if (!NT_STATUS_IS_OK(status)) {
1860                 reply_nterror(req, status);
1861                 END_PROFILE(SMBcreate);
1862                 return;
1863         }
1864
1865         if (fattr & aVOLID) {
1866                 DEBUG(0,("Attempt to create file (%s) with volid set - "
1867                         "please report this\n", fname));
1868         }
1869
1870         if(com == SMBmknew) {
1871                 /* We should fail if file exists. */
1872                 create_disposition = FILE_CREATE;
1873         } else {
1874                 /* Create if file doesn't exist, truncate if it does. */
1875                 create_disposition = FILE_OVERWRITE_IF;
1876         }
1877
1878         /* Open file using ntcreate. */
1879         status = open_file_ntcreate(conn, req, fname, &sbuf,
1880                                 access_mask,
1881                                 share_mode,
1882                                 create_disposition,
1883                                 create_options,
1884                                 fattr,
1885                                 oplock_request,
1886                                 NULL, &fsp);
1887
1888         if (!NT_STATUS_IS_OK(status)) {
1889                 END_PROFILE(SMBcreate);
1890                 if (open_was_deferred(req->mid)) {
1891                         /* We have re-scheduled this call. */
1892                         return;
1893                 }
1894                 reply_nterror(req, status);
1895                 return;
1896         }
1897
1898         ts[0] = get_atimespec(&sbuf); /* atime. */
1899         file_ntimes(conn, fname, ts);
1900
1901         reply_outbuf(req, 1, 0);
1902
1903         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
1904
1905         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
1906                 SCVAL(req->outbuf,smb_flg,
1907                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1908         }
1909
1910         if(EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
1911                 SCVAL(req->outbuf,smb_flg,
1912                                 CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
1913         }
1914
1915         DEBUG( 2, ( "reply_mknew: file %s\n", fname ) );
1916         DEBUG( 3, ( "reply_mknew %s fd=%d dmode=0x%x\n",
1917                                 fname, fsp->fh->fd, (unsigned int)fattr ) );
1918
1919         END_PROFILE(SMBcreate);
1920         return;
1921 }
1922
1923 /****************************************************************************
1924  Reply to a create temporary file.
1925 ****************************************************************************/
1926
1927 void reply_ctemp(connection_struct *conn, struct smb_request *req)
1928 {
1929         pstring fname;
1930         uint32 fattr;
1931         files_struct *fsp;
1932         int oplock_request;
1933         int tmpfd;
1934         SMB_STRUCT_STAT sbuf;
1935         char *s;
1936         NTSTATUS status;
1937
1938         START_PROFILE(SMBctemp);
1939
1940         if (req->wct < 3) {
1941                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
1942                 END_PROFILE(SMBctemp);
1943                 return;
1944         }
1945
1946         fattr = SVAL(req->inbuf,smb_vwv0);
1947         oplock_request = CORE_OPLOCK_REQUEST(req->inbuf);
1948
1949         srvstr_get_path((char *)req->inbuf, req->flags2, fname,
1950                         smb_buf(req->inbuf)+1, sizeof(fname), 0, STR_TERMINATE,
1951                         &status);
1952         if (!NT_STATUS_IS_OK(status)) {
1953                 reply_nterror(req, status);
1954                 END_PROFILE(SMBctemp);
1955                 return;
1956         }
1957         if (*fname) {
1958                 pstrcat(fname,"/TMXXXXXX");
1959         } else {
1960                 pstrcat(fname,"TMXXXXXX");
1961         }
1962
1963         status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
1964                                  fname);
1965         if (!NT_STATUS_IS_OK(status)) {
1966                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
1967                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
1968                                         ERRSRV, ERRbadpath);
1969                         END_PROFILE(SMBctemp);
1970                         return;
1971                 }
1972                 reply_nterror(req, status);
1973                 END_PROFILE(SMBctemp);
1974                 return;
1975         }
1976
1977         status = unix_convert(conn, fname, False, NULL, &sbuf);
1978         if (!NT_STATUS_IS_OK(status)) {
1979                 reply_nterror(req, status);
1980                 END_PROFILE(SMBctemp);
1981                 return;
1982         }
1983
1984         status = check_name(conn, fname);
1985         if (!NT_STATUS_IS_OK(status)) {
1986                 reply_nterror(req, status);
1987                 END_PROFILE(SMBctemp);
1988                 return;
1989         }
1990
1991         tmpfd = smb_mkstemp(fname);
1992         if (tmpfd == -1) {
1993                 reply_unixerror(req, ERRDOS, ERRnoaccess);
1994                 END_PROFILE(SMBctemp);
1995                 return;
1996         }
1997
1998         SMB_VFS_STAT(conn,fname,&sbuf);
1999
2000         /* We should fail if file does not exist. */
2001         status = open_file_ntcreate(conn, req, fname, &sbuf,
2002                                 FILE_GENERIC_READ | FILE_GENERIC_WRITE,
2003                                 FILE_SHARE_READ|FILE_SHARE_WRITE,
2004                                 FILE_OPEN,
2005                                 0,
2006                                 fattr,
2007                                 oplock_request,
2008                                 NULL, &fsp);
2009
2010         /* close fd from smb_mkstemp() */
2011         close(tmpfd);
2012
2013         if (!NT_STATUS_IS_OK(status)) {
2014                 if (open_was_deferred(req->mid)) {
2015                         /* We have re-scheduled this call. */
2016                         END_PROFILE(SMBctemp);
2017                         return;
2018                 }
2019                 reply_nterror(req, status);
2020                 END_PROFILE(SMBctemp);
2021                 return;
2022         }
2023
2024         reply_outbuf(req, 1, 0);
2025         SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
2026
2027         /* the returned filename is relative to the directory */
2028         s = strrchr_m(fname, '/');
2029         if (!s) {
2030                 s = fname;
2031         } else {
2032                 s++;
2033         }
2034
2035 #if 0
2036         /* Tested vs W2K3 - this doesn't seem to be here - null terminated filename is the only
2037            thing in the byte section. JRA */
2038         SSVALS(p, 0, -1); /* what is this? not in spec */
2039 #endif
2040         if (message_push_string(&req->outbuf, s, STR_ASCII|STR_TERMINATE)
2041             == -1) {
2042                 reply_nterror(req, NT_STATUS_NO_MEMORY);
2043                 END_PROFILE(SMBctemp);
2044                 return;
2045         }
2046
2047         if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
2048                 SCVAL(req->outbuf, smb_flg,
2049                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2050         }
2051
2052         if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
2053                 SCVAL(req->outbuf, smb_flg,
2054                       CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
2055         }
2056
2057         DEBUG( 2, ( "reply_ctemp: created temp file %s\n", fname ) );
2058         DEBUG( 3, ( "reply_ctemp %s fd=%d umode=0%o\n", fname, fsp->fh->fd,
2059                         (unsigned int)sbuf.st_mode ) );
2060
2061         END_PROFILE(SMBctemp);
2062         return;
2063 }
2064
2065 /*******************************************************************
2066  Check if a user is allowed to rename a file.
2067 ********************************************************************/
2068
2069 static NTSTATUS can_rename(connection_struct *conn, files_struct *fsp,
2070                            uint16 dirtype, SMB_STRUCT_STAT *pst)
2071 {
2072         uint32 fmode;
2073
2074         if (!CAN_WRITE(conn)) {
2075                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2076         }
2077
2078         fmode = dos_mode(conn, fsp->fsp_name, pst);
2079         if ((fmode & ~dirtype) & (aHIDDEN | aSYSTEM)) {
2080                 return NT_STATUS_NO_SUCH_FILE;
2081         }
2082
2083         if (S_ISDIR(pst->st_mode)) {
2084                 return NT_STATUS_OK;
2085         }
2086
2087         if (fsp->access_mask & DELETE_ACCESS) {
2088                 return NT_STATUS_OK;
2089         }
2090
2091         return NT_STATUS_ACCESS_DENIED;
2092 }
2093
2094 /*******************************************************************
2095  * unlink a file with all relevant access checks
2096  *******************************************************************/
2097
2098 static NTSTATUS do_unlink(connection_struct *conn, struct smb_request *req,
2099                           char *fname, uint32 dirtype)
2100 {
2101         SMB_STRUCT_STAT sbuf;
2102         uint32 fattr;
2103         files_struct *fsp;
2104         uint32 dirtype_orig = dirtype;
2105         NTSTATUS status;
2106
2107         DEBUG(10,("do_unlink: %s, dirtype = %d\n", fname, dirtype ));
2108
2109         if (!CAN_WRITE(conn)) {
2110                 return NT_STATUS_MEDIA_WRITE_PROTECTED;
2111         }
2112
2113         if (SMB_VFS_LSTAT(conn,fname,&sbuf) != 0) {
2114                 return map_nt_error_from_unix(errno);
2115         }
2116
2117         fattr = dos_mode(conn,fname,&sbuf);
2118
2119         if (dirtype & FILE_ATTRIBUTE_NORMAL) {
2120                 dirtype = aDIR|aARCH|aRONLY;
2121         }
2122
2123         dirtype &= (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM);
2124         if (!dirtype) {
2125                 return NT_STATUS_NO_SUCH_FILE;
2126         }
2127
2128         if (!dir_check_ftype(conn, fattr, dirtype)) {
2129                 if (fattr & aDIR) {
2130                         return NT_STATUS_FILE_IS_A_DIRECTORY;
2131                 }
2132                 return NT_STATUS_NO_SUCH_FILE;
2133         }
2134
2135         if (dirtype_orig & 0x8000) {
2136                 /* These will never be set for POSIX. */
2137                 return NT_STATUS_NO_SUCH_FILE;
2138         }
2139
2140 #if 0
2141         if ((fattr & dirtype) & FILE_ATTRIBUTE_DIRECTORY) {
2142                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2143         }
2144
2145         if ((fattr & ~dirtype) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
2146                 return NT_STATUS_NO_SUCH_FILE;
2147         }
2148
2149         if (dirtype & 0xFF00) {
2150                 /* These will never be set for POSIX. */
2151                 return NT_STATUS_NO_SUCH_FILE;
2152         }
2153
2154         dirtype &= 0xFF;
2155         if (!dirtype) {
2156                 return NT_STATUS_NO_SUCH_FILE;
2157         }
2158
2159         /* Can't delete a directory. */
2160         if (fattr & aDIR) {
2161                 return NT_STATUS_FILE_IS_A_DIRECTORY;
2162         }
2163 #endif
2164
2165 #if 0 /* JRATEST */
2166         else if (dirtype & aDIR) /* Asked for a directory and it isn't. */
2167                 return NT_STATUS_OBJECT_NAME_INVALID;
2168 #endif /* JRATEST */
2169
2170         /* Fix for bug #3035 from SATOH Fumiyasu <fumiyas@miraclelinux.com>
2171
2172           On a Windows share, a file with read-only dosmode can be opened with
2173           DELETE_ACCESS. But on a Samba share (delete readonly = no), it
2174           fails with NT_STATUS_CANNOT_DELETE error.
2175
2176           This semantic causes a problem that a user can not
2177           rename a file with read-only dosmode on a Samba share
2178           from a Windows command prompt (i.e. cmd.exe, but can rename
2179           from Windows Explorer).
2180         */
2181
2182         if (!lp_delete_readonly(SNUM(conn))) {
2183                 if (fattr & aRONLY) {
2184                         return NT_STATUS_CANNOT_DELETE;
2185                 }
2186         }
2187
2188         /* On open checks the open itself will check the share mode, so
2189            don't do it here as we'll get it wrong. */
2190
2191         status = open_file_ntcreate(conn, req, fname, &sbuf,
2192                                     DELETE_ACCESS,
2193                                     FILE_SHARE_NONE,
2194                                     FILE_OPEN,
2195                                     0,
2196                                     FILE_ATTRIBUTE_NORMAL,
2197                                     req != NULL ? 0 : INTERNAL_OPEN_ONLY,
2198                                     NULL, &fsp);
2199
2200         if (!NT_STATUS_IS_OK(status)) {
2201                 DEBUG(10, ("open_file_ntcreate failed: %s\n",
2202                            nt_errstr(status)));
2203                 return status;
2204         }
2205
2206         /* The set is across all open files on this dev/inode pair. */
2207         if (!set_delete_on_close(fsp, True, &current_user.ut)) {
2208                 close_file(fsp, NORMAL_CLOSE);
2209                 return NT_STATUS_ACCESS_DENIED;
2210         }
2211
2212         return close_file(fsp,NORMAL_CLOSE);
2213 }
2214
2215 /****************************************************************************
2216  The guts of the unlink command, split out so it may be called by the NT SMB
2217  code.
2218 ****************************************************************************/
2219
2220 NTSTATUS unlink_internals(connection_struct *conn, struct smb_request *req,
2221                           uint32 dirtype, char *name, BOOL has_wild)
2222 {
2223         pstring directory;
2224         pstring mask;
2225         char *p;
2226         int count=0;
2227         NTSTATUS status = NT_STATUS_OK;
2228         SMB_STRUCT_STAT sbuf;
2229
2230         *directory = *mask = 0;
2231
2232         status = unix_convert(conn, name, has_wild, NULL, &sbuf);
2233         if (!NT_STATUS_IS_OK(status)) {
2234                 return status;
2235         }
2236
2237         p = strrchr_m(name,'/');
2238         if (!p) {
2239                 pstrcpy(directory,".");
2240                 pstrcpy(mask,name);
2241         } else {
2242                 *p = 0;
2243                 pstrcpy(directory,name);
2244                 pstrcpy(mask,p+1);
2245         }
2246
2247         /*
2248          * We should only check the mangled cache
2249          * here if unix_convert failed. This means
2250          * that the path in 'mask' doesn't exist
2251          * on the file system and so we need to look
2252          * for a possible mangle. This patch from
2253          * Tine Smukavec <valentin.smukavec@hermes.si>.
2254          */
2255
2256         if (!VALID_STAT(sbuf) && mangle_is_mangled(mask,conn->params))
2257                 mangle_check_cache( mask, sizeof(pstring)-1, conn->params );
2258
2259         if (!has_wild) {
2260                 pstrcat(directory,"/");
2261                 pstrcat(directory,mask);
2262                 if (dirtype == 0) {
2263                         dirtype = FILE_ATTRIBUTE_NORMAL;
2264                 }
2265
2266                 status = check_name(conn, directory);
2267                 if (!NT_STATUS_IS_OK(status)) {
2268                         return status;
2269                 }
2270
2271                 status = do_unlink(conn, req, directory, dirtype);
2272                 if (!NT_STATUS_IS_OK(status)) {
2273                         return status;
2274                 }
2275
2276                 count++;
2277         } else {
2278                 struct smb_Dir *dir_hnd = NULL;
2279                 long offset = 0;
2280                 const char *dname;
2281
2282                 if ((dirtype & SAMBA_ATTRIBUTES_MASK) == aDIR) {
2283                         return NT_STATUS_OBJECT_NAME_INVALID;
2284                 }
2285
2286                 if (strequal(mask,"????????.???")) {
2287                         pstrcpy(mask,"*");
2288                 }
2289
2290                 status = check_name(conn, directory);
2291                 if (!NT_STATUS_IS_OK(status)) {
2292                         return status;
2293                 }
2294
2295                 dir_hnd = OpenDir(conn, directory, mask, dirtype);
2296                 if (dir_hnd == NULL) {
2297                         return map_nt_error_from_unix(errno);
2298                 }
2299
2300                 /* XXXX the CIFS spec says that if bit0 of the flags2 field is set then
2301                    the pattern matches against the long name, otherwise the short name
2302                    We don't implement this yet XXXX
2303                 */
2304
2305                 status = NT_STATUS_NO_SUCH_FILE;
2306
2307                 while ((dname = ReadDirName(dir_hnd, &offset))) {
2308                         SMB_STRUCT_STAT st;
2309                         pstring fname;
2310                         pstrcpy(fname,dname);
2311
2312                         if (!is_visible_file(conn, directory, dname, &st, True)) {
2313                                 continue;
2314                         }
2315
2316                         /* Quick check for "." and ".." */
2317                         if (fname[0] == '.') {
2318                                 if (!fname[1] || (fname[1] == '.' && !fname[2])) {
2319                                         continue;
2320                                 }
2321                         }
2322
2323                         if(!mask_match(fname, mask, conn->case_sensitive)) {
2324                                 continue;
2325                         }
2326
2327                         slprintf(fname,sizeof(fname)-1, "%s/%s",directory,dname);
2328
2329                         status = check_name(conn, fname);
2330                         if (!NT_STATUS_IS_OK(status)) {
2331                                 CloseDir(dir_hnd);
2332                                 return status;
2333                         }
2334
2335                         status = do_unlink(conn, req, fname, dirtype);
2336                         if (!NT_STATUS_IS_OK(status)) {
2337                                 continue;
2338                         }
2339
2340                         count++;
2341                         DEBUG(3,("unlink_internals: succesful unlink [%s]\n",
2342                                  fname));
2343                 }
2344                 CloseDir(dir_hnd);
2345         }
2346
2347         if (count == 0 && NT_STATUS_IS_OK(status)) {
2348                 status = map_nt_error_from_unix(errno);
2349         }
2350
2351         return status;
2352 }
2353
2354 /****************************************************************************
2355  Reply to a unlink
2356 ****************************************************************************/
2357
2358 void reply_unlink(connection_struct *conn, struct smb_request *req)
2359 {
2360         pstring name;
2361         uint32 dirtype;
2362         NTSTATUS status;
2363         BOOL path_contains_wcard = False;
2364
2365         START_PROFILE(SMBunlink);
2366
2367         if (req->wct < 1) {
2368                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2369                 END_PROFILE(SMBunlink);
2370                 return;
2371         }
2372
2373         dirtype = SVAL(req->inbuf,smb_vwv0);
2374
2375         srvstr_get_path_wcard((char *)req->inbuf, req->flags2, name,
2376                               smb_buf(req->inbuf) + 1, sizeof(name), 0,
2377                               STR_TERMINATE, &status, &path_contains_wcard);
2378         if (!NT_STATUS_IS_OK(status)) {
2379                 reply_nterror(req, status);
2380                 END_PROFILE(SMBunlink);
2381                 return;
2382         }
2383
2384         status = resolve_dfspath_wcard(conn,
2385                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
2386                                        name, &path_contains_wcard);
2387         if (!NT_STATUS_IS_OK(status)) {
2388                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
2389                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
2390                                         ERRSRV, ERRbadpath);
2391                         END_PROFILE(SMBunlink);
2392                         return;
2393                 }
2394                 reply_nterror(req, status);
2395                 END_PROFILE(SMBunlink);
2396                 return;
2397         }
2398
2399         DEBUG(3,("reply_unlink : %s\n",name));
2400
2401         status = unlink_internals(conn, req, dirtype, name,
2402                                   path_contains_wcard);
2403         if (!NT_STATUS_IS_OK(status)) {
2404                 if (open_was_deferred(req->mid)) {
2405                         /* We have re-scheduled this call. */
2406                         END_PROFILE(SMBunlink);
2407                         return;
2408                 }
2409                 reply_nterror(req, status);
2410                 END_PROFILE(SMBunlink);
2411                 return;
2412         }
2413
2414         reply_outbuf(req, 0, 0);
2415         END_PROFILE(SMBunlink);
2416
2417         return;
2418 }
2419
2420 /****************************************************************************
2421  Fail for readbraw.
2422 ****************************************************************************/
2423
2424 static void fail_readraw(void)
2425 {
2426         pstring errstr;
2427         slprintf(errstr, sizeof(errstr)-1, "FAIL ! reply_readbraw: socket write fail (%s)",
2428                 strerror(errno) );
2429         exit_server_cleanly(errstr);
2430 }
2431
2432 /****************************************************************************
2433  Fake (read/write) sendfile. Returns -1 on read or write fail.
2434 ****************************************************************************/
2435
2436 static ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos,
2437                              size_t nread)
2438 {
2439         size_t bufsize;
2440         size_t tosend = nread;
2441         char *buf;
2442
2443         if (nread == 0) {
2444                 return 0;
2445         }
2446
2447         bufsize = MIN(nread, 65536);
2448
2449         if (!(buf = SMB_MALLOC_ARRAY(char, bufsize))) {
2450                 return -1;
2451         }
2452
2453         while (tosend > 0) {
2454                 ssize_t ret;
2455                 size_t cur_read;
2456
2457                 if (tosend > bufsize) {
2458                         cur_read = bufsize;
2459                 } else {
2460                         cur_read = tosend;
2461                 }
2462                 ret = read_file(fsp,buf,startpos,cur_read);
2463                 if (ret == -1) {
2464                         SAFE_FREE(buf);
2465                         return -1;
2466                 }
2467
2468                 /* If we had a short read, fill with zeros. */
2469                 if (ret < cur_read) {
2470                         memset(buf, '\0', cur_read - ret);
2471                 }
2472
2473                 if (write_data(smbd_server_fd(),buf,cur_read) != cur_read) {
2474                         SAFE_FREE(buf);
2475                         return -1;
2476                 }
2477                 tosend -= cur_read;
2478                 startpos += cur_read;
2479         }
2480
2481         SAFE_FREE(buf);
2482         return (ssize_t)nread;
2483 }
2484
2485 /****************************************************************************
2486  Return a readbraw error (4 bytes of zero).
2487 ****************************************************************************/
2488
2489 static void reply_readbraw_error(void)
2490 {
2491         char header[4];
2492         SIVAL(header,0,0);
2493         if (write_data(smbd_server_fd(),header,4) != 4) {
2494                 fail_readraw();
2495         }
2496 }
2497
2498 /****************************************************************************
2499  Use sendfile in readbraw.
2500 ****************************************************************************/
2501
2502 void send_file_readbraw(connection_struct *conn,
2503                         files_struct *fsp,
2504                         SMB_OFF_T startpos,
2505                         size_t nread,
2506                         ssize_t mincount)
2507 {
2508         char *outbuf = NULL;
2509         ssize_t ret=0;
2510
2511 #if defined(WITH_SENDFILE)
2512         /*
2513          * We can only use sendfile on a non-chained packet
2514          * but we can use on a non-oplocked file. tridge proved this
2515          * on a train in Germany :-). JRA.
2516          * reply_readbraw has already checked the length.
2517          */
2518
2519         if ( (chain_size == 0) && (nread > 0) &&
2520             (fsp->wcp == NULL) && lp_use_sendfile(SNUM(conn)) ) {
2521                 char header[4];
2522                 DATA_BLOB header_blob;
2523
2524                 _smb_setlen(header,nread);
2525                 header_blob = data_blob_const(header, 4);
2526
2527                 if ( SMB_VFS_SENDFILE( smbd_server_fd(), fsp, fsp->fh->fd,
2528                                 &header_blob, startpos, nread) == -1) {
2529                         /* Returning ENOSYS means no data at all was sent.
2530                          * Do this as a normal read. */
2531                         if (errno == ENOSYS) {
2532                                 goto normal_readbraw;
2533                         }
2534
2535                         /*
2536                          * Special hack for broken Linux with no working sendfile. If we
2537                          * return EINTR we sent the header but not the rest of the data.
2538                          * Fake this up by doing read/write calls.
2539                          */
2540                         if (errno == EINTR) {
2541                                 /* Ensure we don't do this again. */
2542                                 set_use_sendfile(SNUM(conn), False);
2543                                 DEBUG(0,("send_file_readbraw: sendfile not available. Faking..\n"));
2544
2545                                 if (fake_sendfile(fsp, startpos, nread) == -1) {
2546                                         DEBUG(0,("send_file_readbraw: fake_sendfile failed for file %s (%s).\n",
2547                                                 fsp->fsp_name, strerror(errno) ));
2548                                         exit_server_cleanly("send_file_readbraw fake_sendfile failed");
2549                                 }
2550                                 return;
2551                         }
2552
2553                         DEBUG(0,("send_file_readbraw: sendfile failed for file %s (%s). Terminating\n",
2554                                 fsp->fsp_name, strerror(errno) ));
2555                         exit_server_cleanly("send_file_readbraw sendfile failed");
2556                 }
2557
2558                 return;
2559         }
2560 #endif
2561
2562 normal_readbraw:
2563
2564         outbuf = TALLOC_ARRAY(NULL, char, nread+4);
2565         if (!outbuf) {
2566                 DEBUG(0,("send_file_readbraw: TALLOC_ARRAY failed for size %u.\n",
2567                         (unsigned)(nread+4)));
2568                 reply_readbraw_error();
2569                 return;
2570         }
2571
2572         if (nread > 0) {
2573                 ret = read_file(fsp,outbuf+4,startpos,nread);
2574 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2575                 if (ret < mincount)
2576                         ret = 0;
2577 #else
2578                 if (ret < nread)
2579                         ret = 0;
2580 #endif
2581         }
2582
2583         _smb_setlen(outbuf,ret);
2584         if (write_data(smbd_server_fd(),outbuf,4+ret) != 4+ret)
2585                 fail_readraw();
2586
2587         TALLOC_FREE(outbuf);
2588 }
2589
2590 /****************************************************************************
2591  Reply to a readbraw (core+ protocol).
2592 ****************************************************************************/
2593
2594 void reply_readbraw(connection_struct *conn, struct smb_request *req)
2595 {
2596         ssize_t maxcount,mincount;
2597         size_t nread = 0;
2598         SMB_OFF_T startpos;
2599         files_struct *fsp;
2600         SMB_STRUCT_STAT st;
2601         SMB_OFF_T size = 0;
2602
2603         START_PROFILE(SMBreadbraw);
2604
2605         if (srv_is_signing_active()) {
2606                 exit_server_cleanly("reply_readbraw: SMB signing is active - "
2607                         "raw reads/writes are disallowed.");
2608         }
2609
2610         if (req->wct < 8) {
2611                 reply_readbraw_error();
2612                 END_PROFILE(SMBreadbraw);
2613                 return;
2614         }
2615
2616         /*
2617          * Special check if an oplock break has been issued
2618          * and the readraw request croses on the wire, we must
2619          * return a zero length response here.
2620          */
2621
2622         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
2623
2624         /*
2625          * We have to do a check_fsp by hand here, as
2626          * we must always return 4 zero bytes on error,
2627          * not a NTSTATUS.
2628          */
2629
2630         if (!fsp || !conn || conn != fsp->conn ||
2631                         current_user.vuid != fsp->vuid ||
2632                         fsp->is_directory || fsp->fh->fd == -1) {
2633                 /*
2634                  * fsp could be NULL here so use the value from the packet. JRA.
2635                  */
2636                 DEBUG(3,("reply_readbraw: fnum %d not valid "
2637                         "- cache prime?\n",
2638                         (int)SVAL(req->inbuf,smb_vwv0)));
2639                 reply_readbraw_error();
2640                 END_PROFILE(SMBreadbraw);
2641                 return;
2642         }
2643
2644         /* Do a "by hand" version of CHECK_READ. */
2645         if (!(fsp->can_read ||
2646                         ((req->flags2 & FLAGS2_READ_PERMIT_EXECUTE) &&
2647                                 (fsp->access_mask & FILE_EXECUTE)))) {
2648                 DEBUG(3,("reply_readbraw: fnum %d not readable.\n",
2649                                 (int)SVAL(req->inbuf,smb_vwv0)));
2650                 reply_readbraw_error();
2651                 END_PROFILE(SMBreadbraw);
2652                 return;
2653         }
2654
2655         flush_write_cache(fsp, READRAW_FLUSH);
2656
2657         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv1);
2658         if(req->wct == 10) {
2659                 /*
2660                  * This is a large offset (64 bit) read.
2661                  */
2662 #ifdef LARGE_SMB_OFF_T
2663
2664                 startpos |= (((SMB_OFF_T)IVAL(req->inbuf,smb_vwv8)) << 32);
2665
2666 #else /* !LARGE_SMB_OFF_T */
2667
2668                 /*
2669                  * Ensure we haven't been sent a >32 bit offset.
2670                  */
2671
2672                 if(IVAL(req->inbuf,smb_vwv8) != 0) {
2673                         DEBUG(0,("reply_readbraw: large offset "
2674                                 "(%x << 32) used and we don't support "
2675                                 "64 bit offsets.\n",
2676                         (unsigned int)IVAL(req->inbuf,smb_vwv8) ));
2677                         reply_readbraw_error();
2678                         END_PROFILE(SMBreadbraw);
2679                         return;
2680                 }
2681
2682 #endif /* LARGE_SMB_OFF_T */
2683
2684                 if(startpos < 0) {
2685                         DEBUG(0,("reply_readbraw: negative 64 bit "
2686                                 "readraw offset (%.0f) !\n",
2687                                 (double)startpos ));
2688                         reply_readbraw_error();
2689                         END_PROFILE(SMBreadbraw);
2690                         return;
2691                 }
2692         }
2693
2694         maxcount = (SVAL(req->inbuf,smb_vwv3) & 0xFFFF);
2695         mincount = (SVAL(req->inbuf,smb_vwv4) & 0xFFFF);
2696
2697         /* ensure we don't overrun the packet size */
2698         maxcount = MIN(65535,maxcount);
2699
2700         if (is_locked(fsp,(uint32)req->smbpid,
2701                         (SMB_BIG_UINT)maxcount,
2702                         (SMB_BIG_UINT)startpos,
2703                         READ_LOCK)) {
2704                 reply_readbraw_error();
2705                 END_PROFILE(SMBreadbraw);
2706                 return;
2707         }
2708
2709         if (SMB_VFS_FSTAT(fsp,fsp->fh->fd,&st) == 0) {
2710                 size = st.st_size;
2711         }
2712
2713         if (startpos >= size) {
2714                 nread = 0;
2715         } else {
2716                 nread = MIN(maxcount,(size - startpos));
2717         }
2718
2719 #if 0 /* mincount appears to be ignored in a W2K server. JRA. */
2720         if (nread < mincount)
2721                 nread = 0;
2722 #endif
2723
2724         DEBUG( 3, ( "reply_readbraw: fnum=%d start=%.0f max=%lu "
2725                 "min=%lu nread=%lu\n",
2726                 fsp->fnum, (double)startpos,
2727                 (unsigned long)maxcount,
2728                 (unsigned long)mincount,
2729                 (unsigned long)nread ) );
2730
2731         send_file_readbraw(conn, fsp, startpos, nread, mincount);
2732
2733         DEBUG(5,("reply_readbraw finished\n"));
2734         END_PROFILE(SMBreadbraw);
2735 }
2736
2737 #undef DBGC_CLASS
2738 #define DBGC_CLASS DBGC_LOCKING
2739
2740 /****************************************************************************
2741  Reply to a lockread (core+ protocol).
2742 ****************************************************************************/
2743
2744 int reply_lockread(connection_struct *conn, char *inbuf,char *outbuf, int length, int dum_buffsiz)
2745 {
2746         ssize_t nread = -1;
2747         char *data;
2748         int outsize = 0;
2749         SMB_OFF_T startpos;
2750         size_t numtoread;
2751         NTSTATUS status;
2752         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
2753         struct byte_range_lock *br_lck = NULL;
2754         START_PROFILE(SMBlockread);
2755
2756         CHECK_FSP(fsp,conn);
2757         if (!CHECK_READ(fsp,inbuf)) {
2758                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
2759         }
2760
2761         release_level_2_oplocks_on_change(fsp);
2762
2763         numtoread = SVAL(inbuf,smb_vwv1);
2764         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
2765
2766         outsize = set_message(inbuf,outbuf,5,3,True);
2767         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
2768         data = smb_buf(outbuf) + 3;
2769
2770         /*
2771          * NB. Discovered by Menny Hamburger at Mainsoft. This is a core+
2772          * protocol request that predates the read/write lock concept.
2773          * Thus instead of asking for a read lock here we need to ask
2774          * for a write lock. JRA.
2775          * Note that the requested lock size is unaffected by max_recv.
2776          */
2777
2778         br_lck = do_lock(smbd_messaging_context(),
2779                         fsp,
2780                         (uint32)SVAL(inbuf,smb_pid),
2781                         (SMB_BIG_UINT)numtoread,
2782                         (SMB_BIG_UINT)startpos,
2783                         WRITE_LOCK,
2784                         WINDOWS_LOCK,
2785                         False, /* Non-blocking lock. */
2786                         &status,
2787                         NULL);
2788         TALLOC_FREE(br_lck);
2789
2790         if (NT_STATUS_V(status)) {
2791                 END_PROFILE(SMBlockread);
2792                 return ERROR_NT(status);
2793         }
2794
2795         /*
2796          * However the requested READ size IS affected by max_recv. Insanity.... JRA.
2797          */
2798
2799         if (numtoread > max_recv) {
2800                 DEBUG(0,("reply_lockread: requested read size (%u) is greater than maximum allowed (%u). \
2801 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
2802                         (unsigned int)numtoread, (unsigned int)max_recv ));
2803                 numtoread = MIN(numtoread,max_recv);
2804         }
2805         nread = read_file(fsp,data,startpos,numtoread);
2806
2807         if (nread < 0) {
2808                 END_PROFILE(SMBlockread);
2809                 return(UNIXERROR(ERRDOS,ERRnoaccess));
2810         }
2811
2812         outsize += nread;
2813         SSVAL(outbuf,smb_vwv0,nread);
2814         SSVAL(outbuf,smb_vwv5,nread+3);
2815         SSVAL(smb_buf(outbuf),1,nread);
2816
2817         DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
2818                  fsp->fnum, (int)numtoread, (int)nread));
2819
2820         END_PROFILE(SMBlockread);
2821         return(outsize);
2822 }
2823
2824 #undef DBGC_CLASS
2825 #define DBGC_CLASS DBGC_ALL
2826
2827 /****************************************************************************
2828  Reply to a read.
2829 ****************************************************************************/
2830
2831 void reply_read(connection_struct *conn, struct smb_request *req)
2832 {
2833         size_t numtoread;
2834         ssize_t nread = 0;
2835         char *data;
2836         SMB_OFF_T startpos;
2837         int outsize = 0;
2838         files_struct *fsp;
2839
2840         START_PROFILE(SMBread);
2841
2842         if (req->wct < 3) {
2843                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
2844                 END_PROFILE(SMBread);
2845                 return;
2846         }
2847
2848         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
2849
2850         if (!check_fsp(conn, req, fsp, &current_user)) {
2851                 END_PROFILE(SMBread);
2852                 return;
2853         }
2854
2855         if (!CHECK_READ(fsp,req->inbuf)) {
2856                 reply_doserror(req, ERRDOS, ERRbadaccess);
2857                 END_PROFILE(SMBread);
2858                 return;
2859         }
2860
2861         numtoread = SVAL(req->inbuf,smb_vwv1);
2862         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
2863
2864         numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
2865
2866         /*
2867          * The requested read size cannot be greater than max_recv. JRA.
2868          */
2869         if (numtoread > max_recv) {
2870                 DEBUG(0,("reply_read: requested read size (%u) is greater than maximum allowed (%u). \
2871 Returning short read of maximum allowed for compatibility with Windows 2000.\n",
2872                         (unsigned int)numtoread, (unsigned int)max_recv ));
2873                 numtoread = MIN(numtoread,max_recv);
2874         }
2875
2876         reply_outbuf(req, 5, numtoread+3);
2877
2878         data = smb_buf(req->outbuf) + 3;
2879
2880         if (is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)numtoread,
2881                       (SMB_BIG_UINT)startpos, READ_LOCK)) {
2882                 reply_doserror(req, ERRDOS,ERRlock);
2883                 END_PROFILE(SMBread);
2884                 return;
2885         }
2886
2887         if (numtoread > 0)
2888                 nread = read_file(fsp,data,startpos,numtoread);
2889
2890         if (nread < 0) {
2891                 reply_unixerror(req, ERRDOS,ERRnoaccess);
2892                 END_PROFILE(SMBread);
2893                 return;
2894         }
2895
2896         set_message(NULL, (char *)req->outbuf, 5, nread+3, False);
2897
2898         SSVAL(req->outbuf,smb_vwv0,nread);
2899         SSVAL(req->outbuf,smb_vwv5,nread+3);
2900         SCVAL(smb_buf(req->outbuf),0,1);
2901         SSVAL(smb_buf(req->outbuf),1,nread);
2902
2903         DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
2904                 fsp->fnum, (int)numtoread, (int)nread ) );
2905
2906         END_PROFILE(SMBread);
2907         return;
2908 }
2909
2910 /****************************************************************************
2911  Setup readX header.
2912 ****************************************************************************/
2913
2914 static int setup_readX_header(const uint8 *inbuf, uint8 *outbuf,
2915                               size_t smb_maxcnt)
2916 {
2917         int outsize;
2918         char *data;
2919
2920         outsize = set_message((char *)inbuf, (char *)outbuf,12,smb_maxcnt,
2921                               False);
2922         data = smb_buf(outbuf);
2923
2924         SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
2925         SSVAL(outbuf,smb_vwv5,smb_maxcnt);
2926         SSVAL(outbuf,smb_vwv6,smb_offset(data,outbuf));
2927         SSVAL(outbuf,smb_vwv7,(smb_maxcnt >> 16));
2928         SSVAL(smb_buf(outbuf),-2,smb_maxcnt);
2929         SCVAL(outbuf,smb_vwv0,0xFF);
2930         /* Reset the outgoing length, set_message truncates at 0x1FFFF. */
2931         _smb_setlen_large(outbuf,(smb_size + 12*2 + smb_maxcnt - 4));
2932         return outsize;
2933 }
2934
2935 /****************************************************************************
2936  Reply to a read and X - possibly using sendfile.
2937 ****************************************************************************/
2938
2939 static void send_file_readX(connection_struct *conn, struct smb_request *req,
2940                             files_struct *fsp, SMB_OFF_T startpos,
2941                             size_t smb_maxcnt)
2942 {
2943         SMB_STRUCT_STAT sbuf;
2944         ssize_t nread = -1;
2945
2946         if(SMB_VFS_FSTAT(fsp,fsp->fh->fd, &sbuf) == -1) {
2947                 reply_unixerror(req, ERRDOS, ERRnoaccess);
2948                 return;
2949         }
2950
2951         if (startpos > sbuf.st_size) {
2952                 smb_maxcnt = 0;
2953         } else if (smb_maxcnt > (sbuf.st_size - startpos)) {
2954                 smb_maxcnt = (sbuf.st_size - startpos);
2955         }
2956
2957         if (smb_maxcnt == 0) {
2958                 goto normal_read;
2959         }
2960
2961 #if defined(WITH_SENDFILE)
2962         /*
2963          * We can only use sendfile on a non-chained packet
2964          * but we can use on a non-oplocked file. tridge proved this
2965          * on a train in Germany :-). JRA.
2966          */
2967
2968         if ((chain_size == 0) && (CVAL(req->inbuf,smb_vwv0) == 0xFF) &&
2969             lp_use_sendfile(SNUM(conn)) && (fsp->wcp == NULL) ) {
2970                 uint8 headerbuf[smb_size + 12 * 2];
2971                 DATA_BLOB header;
2972
2973                 /*
2974                  * Set up the packet header before send. We
2975                  * assume here the sendfile will work (get the
2976                  * correct amount of data).
2977                  */
2978
2979                 header = data_blob_const(headerbuf, sizeof(headerbuf));
2980
2981                 construct_reply_common((char *)req->inbuf, (char *)headerbuf);
2982                 setup_readX_header(req->inbuf, headerbuf, smb_maxcnt);
2983
2984                 if ((nread = SMB_VFS_SENDFILE( smbd_server_fd(), fsp, fsp->fh->fd, &header, startpos, smb_maxcnt)) == -1) {
2985                         /* Returning ENOSYS means no data at all was sent. Do this as a normal read. */
2986                         if (errno == ENOSYS) {
2987                                 goto normal_read;
2988                         }
2989
2990                         /*
2991                          * Special hack for broken Linux with no working sendfile. If we
2992                          * return EINTR we sent the header but not the rest of the data.
2993                          * Fake this up by doing read/write calls.
2994                          */
2995
2996                         if (errno == EINTR) {
2997                                 /* Ensure we don't do this again. */
2998                                 set_use_sendfile(SNUM(conn), False);
2999                                 DEBUG(0,("send_file_readX: sendfile not available. Faking..\n"));
3000                                 nread = fake_sendfile(fsp, startpos,
3001                                                       smb_maxcnt);
3002                                 if (nread == -1) {
3003                                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3004                                                 fsp->fsp_name, strerror(errno) ));
3005                                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3006                                 }
3007                                 DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
3008                                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3009                                 /* No outbuf here means successful sendfile. */
3010                                 TALLOC_FREE(req->outbuf);
3011                                 return;
3012                         }
3013
3014                         DEBUG(0,("send_file_readX: sendfile failed for file %s (%s). Terminating\n",
3015                                 fsp->fsp_name, strerror(errno) ));
3016                         exit_server_cleanly("send_file_readX sendfile failed");
3017                 }
3018
3019                 DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
3020                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3021                 /* No outbuf here means successful sendfile. */
3022                 TALLOC_FREE(req->outbuf);
3023                 return;
3024         }
3025
3026 #endif
3027
3028 normal_read:
3029
3030         if ((smb_maxcnt & 0xFF0000) > 0x10000) {
3031                 uint8 headerbuf[smb_size + 2*12];
3032
3033                 construct_reply_common((char *)req->inbuf, (char *)headerbuf);
3034                 setup_readX_header(req->inbuf, headerbuf, smb_maxcnt);
3035
3036                 /* Send out the header. */
3037                 if (write_data(smbd_server_fd(), (char *)headerbuf,
3038                                sizeof(headerbuf)) != sizeof(headerbuf)) {
3039                         DEBUG(0,("send_file_readX: write_data failed for file %s (%s). Terminating\n",
3040                                 fsp->fsp_name, strerror(errno) ));
3041                         exit_server_cleanly("send_file_readX sendfile failed");
3042                 }
3043                 nread = fake_sendfile(fsp, startpos, smb_maxcnt);
3044                 if (nread == -1) {
3045                         DEBUG(0,("send_file_readX: fake_sendfile failed for file %s (%s).\n",
3046                                 fsp->fsp_name, strerror(errno) ));
3047                         exit_server_cleanly("send_file_readX: fake_sendfile failed");
3048                 }
3049                 TALLOC_FREE(req->outbuf);
3050                 return;
3051         } else {
3052                 reply_outbuf(req, 12, smb_maxcnt);
3053
3054                 nread = read_file(fsp, smb_buf(req->outbuf), startpos,
3055                                   smb_maxcnt);
3056                 if (nread < 0) {
3057                         reply_unixerror(req, ERRDOS, ERRnoaccess);
3058                         return;
3059                 }
3060
3061                 setup_readX_header(req->inbuf, req->outbuf, nread);
3062
3063                 DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
3064                         fsp->fnum, (int)smb_maxcnt, (int)nread ) );
3065
3066                 chain_reply_new(req);
3067
3068                 return;
3069         }
3070 }
3071
3072 /****************************************************************************
3073  Reply to a read and X.
3074 ****************************************************************************/
3075
3076 void reply_read_and_X(connection_struct *conn, struct smb_request *req)
3077 {
3078         files_struct *fsp;
3079         SMB_OFF_T startpos;
3080         size_t smb_maxcnt;
3081         BOOL big_readX = False;
3082 #if 0
3083         size_t smb_mincnt = SVAL(req->inbuf,smb_vwv6);
3084 #endif
3085
3086         START_PROFILE(SMBreadX);
3087
3088         if ((req->wct != 10) && (req->wct != 12)) {
3089                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3090                 return;
3091         }
3092
3093         fsp = file_fsp(SVAL(req->inbuf,smb_vwv2));
3094         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv3);
3095         smb_maxcnt = SVAL(req->inbuf,smb_vwv5);
3096
3097         /* If it's an IPC, pass off the pipe handler. */
3098         if (IS_IPC(conn)) {
3099                 reply_pipe_read_and_X(req);
3100                 END_PROFILE(SMBreadX);
3101                 return;
3102         }
3103
3104         if (!check_fsp(conn, req, fsp, &current_user)) {
3105                 END_PROFILE(SMBreadX);
3106                 return;
3107         }
3108
3109         if (!CHECK_READ(fsp,req->inbuf)) {
3110                 reply_doserror(req, ERRDOS,ERRbadaccess);
3111                 END_PROFILE(SMBreadX);
3112                 return;
3113         }
3114
3115         if (global_client_caps & CAP_LARGE_READX) {
3116                 size_t upper_size = SVAL(req->inbuf,smb_vwv7);
3117                 smb_maxcnt |= (upper_size<<16);
3118                 if (upper_size > 1) {
3119                         /* Can't do this on a chained packet. */
3120                         if ((CVAL(req->inbuf,smb_vwv0) != 0xFF)) {
3121                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3122                                 END_PROFILE(SMBreadX);
3123                                 return;
3124                         }
3125                         /* We currently don't do this on signed or sealed data. */
3126                         if (srv_is_signing_active() || srv_encryption_on()) {
3127                                 reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
3128                                 END_PROFILE(SMBreadX);
3129                                 return;
3130                         }
3131                         /* Is there room in the reply for this data ? */
3132                         if (smb_maxcnt > (0xFFFFFF - (smb_size -4 + 12*2)))  {
3133                                 reply_nterror(req,
3134                                               NT_STATUS_INVALID_PARAMETER);
3135                                 END_PROFILE(SMBreadX);
3136                                 return;
3137                         }
3138                         big_readX = True;
3139                 }
3140         }
3141
3142         if (req->wct == 12) {
3143 #ifdef LARGE_SMB_OFF_T
3144                 /*
3145                  * This is a large offset (64 bit) read.
3146                  */
3147                 startpos |= (((SMB_OFF_T)IVAL(req->inbuf,smb_vwv10)) << 32);
3148
3149 #else /* !LARGE_SMB_OFF_T */
3150
3151                 /*
3152                  * Ensure we haven't been sent a >32 bit offset.
3153                  */
3154
3155                 if(IVAL(req->inbuf,smb_vwv10) != 0) {
3156                         DEBUG(0,("reply_read_and_X - large offset (%x << 32) "
3157                                  "used and we don't support 64 bit offsets.\n",
3158                                  (unsigned int)IVAL(req->inbuf,smb_vwv10) ));
3159                         END_PROFILE(SMBreadX);
3160                         reply_doserror(req, ERRDOS, ERRbadaccess);
3161                         return;
3162                 }
3163
3164 #endif /* LARGE_SMB_OFF_T */
3165
3166         }
3167
3168         if (is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)smb_maxcnt,
3169                       (SMB_BIG_UINT)startpos, READ_LOCK)) {
3170                 END_PROFILE(SMBreadX);
3171                 reply_doserror(req, ERRDOS, ERRlock);
3172                 return;
3173         }
3174
3175         if (!big_readX
3176             && schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) {
3177                 END_PROFILE(SMBreadX);
3178                 reply_post_legacy(req, -1);
3179                 return;
3180         }
3181
3182         send_file_readX(conn, req, fsp, startpos, smb_maxcnt);
3183
3184         END_PROFILE(SMBreadX);
3185         return;
3186 }
3187
3188 /****************************************************************************
3189  Reply to a writebraw (core+ or LANMAN1.0 protocol).
3190 ****************************************************************************/
3191
3192 int reply_writebraw(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
3193 {
3194         ssize_t nwritten=0;
3195         ssize_t total_written=0;
3196         size_t numtowrite=0;
3197         size_t tcount;
3198         SMB_OFF_T startpos;
3199         char *data=NULL;
3200         BOOL write_through;
3201         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
3202         int outsize = 0;
3203         NTSTATUS status;
3204         START_PROFILE(SMBwritebraw);
3205
3206         if (srv_is_signing_active()) {
3207                 exit_server_cleanly("reply_writebraw: SMB signing is active - raw reads/writes are disallowed.");
3208         }
3209
3210         CHECK_FSP(fsp,conn);
3211         if (!CHECK_WRITE(fsp)) {
3212                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
3213         }
3214
3215         tcount = IVAL(inbuf,smb_vwv1);
3216         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv3);
3217         write_through = BITSETW(inbuf+smb_vwv7,0);
3218
3219         /* We have to deal with slightly different formats depending
3220                 on whether we are using the core+ or lanman1.0 protocol */
3221
3222         if(Protocol <= PROTOCOL_COREPLUS) {
3223                 numtowrite = SVAL(smb_buf(inbuf),-2);
3224                 data = smb_buf(inbuf);
3225         } else {
3226                 numtowrite = SVAL(inbuf,smb_vwv10);
3227                 data = smb_base(inbuf) + SVAL(inbuf, smb_vwv11);
3228         }
3229
3230         /* force the error type */
3231         SCVAL(inbuf,smb_com,SMBwritec);
3232         SCVAL(outbuf,smb_com,SMBwritec);
3233
3234         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)tcount,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3235                 END_PROFILE(SMBwritebraw);
3236                 return(ERROR_DOS(ERRDOS,ERRlock));
3237         }
3238
3239         if (numtowrite>0)
3240                 nwritten = write_file(fsp,data,startpos,numtowrite);
3241
3242         DEBUG(3,("writebraw1 fnum=%d start=%.0f num=%d wrote=%d sync=%d\n",
3243                 fsp->fnum, (double)startpos, (int)numtowrite, (int)nwritten, (int)write_through));
3244
3245         if (nwritten < (ssize_t)numtowrite)  {
3246                 END_PROFILE(SMBwritebraw);
3247                 return(UNIXERROR(ERRHRD,ERRdiskfull));
3248         }
3249
3250         total_written = nwritten;
3251
3252         /* Return a message to the redirector to tell it to send more bytes */
3253         SCVAL(outbuf,smb_com,SMBwritebraw);
3254         SSVALS(outbuf,smb_vwv0,-1);
3255         outsize = set_message(inbuf,outbuf,Protocol>PROTOCOL_COREPLUS?1:0,0,True);
3256         show_msg(outbuf);
3257         if (!send_smb(smbd_server_fd(),outbuf))
3258                 exit_server_cleanly("reply_writebraw: send_smb failed.");
3259
3260         /* Now read the raw data into the buffer and write it */
3261         if (read_smb_length(smbd_server_fd(),inbuf,SMB_SECONDARY_WAIT) == -1) {
3262                 exit_server_cleanly("secondary writebraw failed");
3263         }
3264
3265         /* Even though this is not an smb message, smb_len returns the generic length of an smb message */
3266         numtowrite = smb_len(inbuf);
3267
3268         /* Set up outbuf to return the correct return */
3269         outsize = set_message(inbuf,outbuf,1,0,True);
3270         SCVAL(outbuf,smb_com,SMBwritec);
3271
3272         if (numtowrite != 0) {
3273
3274                 if (numtowrite > BUFFER_SIZE) {
3275                         DEBUG(0,("reply_writebraw: Oversize secondary write raw requested (%u). Terminating\n",
3276                                 (unsigned int)numtowrite ));
3277                         exit_server_cleanly("secondary writebraw failed");
3278                 }
3279
3280                 if (tcount > nwritten+numtowrite) {
3281                         DEBUG(3,("Client overestimated the write %d %d %d\n",
3282                                 (int)tcount,(int)nwritten,(int)numtowrite));
3283                 }
3284
3285                 if (read_data( smbd_server_fd(), inbuf+4, numtowrite) != numtowrite ) {
3286                         DEBUG(0,("reply_writebraw: Oversize secondary write raw read failed (%s). Terminating\n",
3287                                 strerror(errno) ));
3288                         exit_server_cleanly("secondary writebraw failed");
3289                 }
3290
3291                 nwritten = write_file(fsp,inbuf+4,startpos+nwritten,numtowrite);
3292                 if (nwritten == -1) {
3293                         END_PROFILE(SMBwritebraw);
3294                         return(UNIXERROR(ERRHRD,ERRdiskfull));
3295                 }
3296
3297                 if (nwritten < (ssize_t)numtowrite) {
3298                         SCVAL(outbuf,smb_rcls,ERRHRD);
3299                         SSVAL(outbuf,smb_err,ERRdiskfull);
3300                 }
3301
3302                 if (nwritten > 0)
3303                         total_written += nwritten;
3304         }
3305
3306         SSVAL(outbuf,smb_vwv0,total_written);
3307
3308         status = sync_file(conn, fsp, write_through);
3309         if (!NT_STATUS_IS_OK(status)) {
3310                 DEBUG(5,("reply_writebraw: sync_file for %s returned %s\n",
3311                         fsp->fsp_name, nt_errstr(status) ));
3312                 END_PROFILE(SMBwritebraw);
3313                 return ERROR_NT(status);
3314         }
3315
3316         DEBUG(3,("writebraw2 fnum=%d start=%.0f num=%d wrote=%d\n",
3317                 fsp->fnum, (double)startpos, (int)numtowrite,(int)total_written));
3318
3319         /* we won't return a status if write through is not selected - this follows what WfWg does */
3320         END_PROFILE(SMBwritebraw);
3321         if (!write_through && total_written==tcount) {
3322
3323 #if RABBIT_PELLET_FIX
3324                 /*
3325                  * Fix for "rabbit pellet" mode, trigger an early TCP ack by
3326                  * sending a SMBkeepalive. Thanks to DaveCB at Sun for this. JRA.
3327                  */
3328                 if (!send_keepalive(smbd_server_fd()))
3329                         exit_server_cleanly("reply_writebraw: send of keepalive failed");
3330 #endif
3331                 return(-1);
3332         }
3333
3334         return(outsize);
3335 }
3336
3337 #undef DBGC_CLASS
3338 #define DBGC_CLASS DBGC_LOCKING
3339
3340 /****************************************************************************
3341  Reply to a writeunlock (core+).
3342 ****************************************************************************/
3343
3344 int reply_writeunlock(connection_struct *conn, char *inbuf,char *outbuf,
3345                       int size, int dum_buffsize)
3346 {
3347         ssize_t nwritten = -1;
3348         size_t numtowrite;
3349         SMB_OFF_T startpos;
3350         char *data;
3351         NTSTATUS status = NT_STATUS_OK;
3352         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
3353         int outsize = 0;
3354         START_PROFILE(SMBwriteunlock);
3355
3356         CHECK_FSP(fsp,conn);
3357         if (!CHECK_WRITE(fsp)) {
3358                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
3359         }
3360
3361         numtowrite = SVAL(inbuf,smb_vwv1);
3362         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
3363         data = smb_buf(inbuf) + 3;
3364
3365         if (numtowrite && is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtowrite,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3366                 END_PROFILE(SMBwriteunlock);
3367                 return ERROR_DOS(ERRDOS,ERRlock);
3368         }
3369
3370         /* The special X/Open SMB protocol handling of
3371            zero length writes is *NOT* done for
3372            this call */
3373         if(numtowrite == 0) {
3374                 nwritten = 0;
3375         } else {
3376                 nwritten = write_file(fsp,data,startpos,numtowrite);
3377         }
3378
3379         status = sync_file(conn, fsp, False /* write through */);
3380         if (!NT_STATUS_IS_OK(status)) {
3381                 END_PROFILE(SMBwriteunlock);
3382                 DEBUG(5,("reply_writeunlock: sync_file for %s returned %s\n",
3383                         fsp->fsp_name, nt_errstr(status) ));
3384                 return ERROR_NT(status);
3385         }
3386
3387         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3388                 END_PROFILE(SMBwriteunlock);
3389                 return(UNIXERROR(ERRHRD,ERRdiskfull));
3390         }
3391
3392         if (numtowrite) {
3393                 status = do_unlock(smbd_messaging_context(),
3394                                 fsp,
3395                                 (uint32)SVAL(inbuf,smb_pid),
3396                                 (SMB_BIG_UINT)numtowrite,
3397                                 (SMB_BIG_UINT)startpos,
3398                                 WINDOWS_LOCK);
3399
3400                 if (NT_STATUS_V(status)) {
3401                         END_PROFILE(SMBwriteunlock);
3402                         return ERROR_NT(status);
3403                 }
3404         }
3405
3406         outsize = set_message(inbuf,outbuf,1,0,True);
3407
3408         SSVAL(outbuf,smb_vwv0,nwritten);
3409
3410         DEBUG(3,("writeunlock fnum=%d num=%d wrote=%d\n",
3411                  fsp->fnum, (int)numtowrite, (int)nwritten));
3412
3413         END_PROFILE(SMBwriteunlock);
3414         return outsize;
3415 }
3416
3417 #undef DBGC_CLASS
3418 #define DBGC_CLASS DBGC_ALL
3419
3420 /****************************************************************************
3421  Reply to a write.
3422 ****************************************************************************/
3423
3424 void reply_write(connection_struct *conn, struct smb_request *req)
3425 {
3426         size_t numtowrite;
3427         ssize_t nwritten = -1;
3428         SMB_OFF_T startpos;
3429         char *data;
3430         files_struct *fsp;
3431         NTSTATUS status;
3432
3433         START_PROFILE(SMBwrite);
3434
3435         if (req->wct < 5) {
3436                 END_PROFILE(SMBwrite);
3437                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3438                 return;
3439         }
3440
3441         /* If it's an IPC, pass off the pipe handler. */
3442         if (IS_IPC(conn)) {
3443                 reply_pipe_write(req);
3444                 END_PROFILE(SMBwrite);
3445                 return;
3446         }
3447
3448         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3449
3450         if (!check_fsp(conn, req, fsp, &current_user)) {
3451                 return;
3452         }
3453
3454         if (!CHECK_WRITE(fsp)) {
3455                 reply_doserror(req, ERRDOS, ERRbadaccess);
3456                 END_PROFILE(SMBwrite);
3457                 return;
3458         }
3459
3460         numtowrite = SVAL(req->inbuf,smb_vwv1);
3461         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv2);
3462         data = smb_buf(req->inbuf) + 3;
3463
3464         if (is_locked(fsp, (uint32)req->smbpid, (SMB_BIG_UINT)numtowrite,
3465                       (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3466                 reply_doserror(req, ERRDOS, ERRlock);
3467                 END_PROFILE(SMBwrite);
3468                 return;
3469         }
3470
3471         /*
3472          * X/Open SMB protocol says that if smb_vwv1 is
3473          * zero then the file size should be extended or
3474          * truncated to the size given in smb_vwv[2-3].
3475          */
3476
3477         if(numtowrite == 0) {
3478                 /*
3479                  * This is actually an allocate call, and set EOF. JRA.
3480                  */
3481                 nwritten = vfs_allocate_file_space(fsp, (SMB_OFF_T)startpos);
3482                 if (nwritten < 0) {
3483                         reply_nterror(req, NT_STATUS_DISK_FULL);
3484                         END_PROFILE(SMBwrite);
3485                         return;
3486                 }
3487                 nwritten = vfs_set_filelen(fsp, (SMB_OFF_T)startpos);
3488                 if (nwritten < 0) {
3489                         reply_nterror(req, NT_STATUS_DISK_FULL);
3490                         END_PROFILE(SMBwrite);
3491                         return;
3492                 }
3493         } else
3494                 nwritten = write_file(fsp,data,startpos,numtowrite);
3495
3496         status = sync_file(conn, fsp, False);
3497         if (!NT_STATUS_IS_OK(status)) {
3498                 DEBUG(5,("reply_write: sync_file for %s returned %s\n",
3499                         fsp->fsp_name, nt_errstr(status) ));
3500                 reply_nterror(req, status);
3501                 END_PROFILE(SMBwrite);
3502                 return;
3503         }
3504
3505         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3506                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3507                 END_PROFILE(SMBwrite);
3508                 return;
3509         }
3510
3511         reply_outbuf(req, 1, 0);
3512
3513         SSVAL(req->outbuf,smb_vwv0,nwritten);
3514
3515         if (nwritten < (ssize_t)numtowrite) {
3516                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
3517                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
3518         }
3519
3520         DEBUG(3,("write fnum=%d num=%d wrote=%d\n", fsp->fnum, (int)numtowrite, (int)nwritten));
3521
3522         END_PROFILE(SMBwrite);
3523         return;
3524 }
3525
3526 /****************************************************************************
3527  Reply to a write and X.
3528 ****************************************************************************/
3529
3530 void reply_write_and_X(connection_struct *conn, struct smb_request *req)
3531 {
3532         files_struct *fsp;
3533         SMB_OFF_T startpos;
3534         size_t numtowrite;
3535         BOOL write_through;
3536         ssize_t nwritten;
3537         unsigned int smb_doff;
3538         unsigned int smblen;
3539         char *data;
3540         BOOL large_writeX;
3541         NTSTATUS status;
3542
3543         START_PROFILE(SMBwriteX);
3544
3545         if ((req->wct != 12) && (req->wct != 14)) {
3546                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3547                 END_PROFILE(SMBwriteX);
3548                 return;
3549         }
3550
3551         numtowrite = SVAL(req->inbuf,smb_vwv10);
3552         smb_doff = SVAL(req->inbuf,smb_vwv11);
3553         smblen = smb_len(req->inbuf);
3554         large_writeX = ((req->wct == 14) && (smblen > 0xFFFF));
3555
3556         /* Deal with possible LARGE_WRITEX */
3557         if (large_writeX) {
3558                 numtowrite |= ((((size_t)SVAL(req->inbuf,smb_vwv9)) & 1 )<<16);
3559         }
3560
3561         if(smb_doff > smblen || (smb_doff + numtowrite > smblen)) {
3562                 reply_doserror(req, ERRDOS, ERRbadmem);
3563                 END_PROFILE(SMBwriteX);
3564                 return;
3565         }
3566
3567         /* If it's an IPC, pass off the pipe handler. */
3568         if (IS_IPC(conn)) {
3569                 reply_pipe_write_and_X(req);
3570                 END_PROFILE(SMBwriteX);
3571                 return;
3572         }
3573
3574         fsp = file_fsp(SVAL(req->inbuf,smb_vwv2));
3575         startpos = IVAL_TO_SMB_OFF_T(req->inbuf,smb_vwv3);
3576         write_through = BITSETW(req->inbuf+smb_vwv7,0);
3577
3578         if (!check_fsp(conn, req, fsp, &current_user)) {
3579                 END_PROFILE(SMBwriteX);
3580                 return;
3581         }
3582
3583         if (!CHECK_WRITE(fsp)) {
3584                 reply_doserror(req, ERRDOS, ERRbadaccess);
3585                 END_PROFILE(SMBwriteX);
3586                 return;
3587         }
3588
3589         data = smb_base(req->inbuf) + smb_doff;
3590
3591         if(req->wct == 14) {
3592 #ifdef LARGE_SMB_OFF_T
3593                 /*
3594                  * This is a large offset (64 bit) write.
3595                  */
3596                 startpos |= (((SMB_OFF_T)IVAL(req->inbuf,smb_vwv12)) << 32);
3597
3598 #else /* !LARGE_SMB_OFF_T */
3599
3600                 /*
3601                  * Ensure we haven't been sent a >32 bit offset.
3602                  */
3603
3604                 if(IVAL(req->inbuf,smb_vwv12) != 0) {
3605                         DEBUG(0,("reply_write_and_X - large offset (%x << 32) "
3606                                  "used and we don't support 64 bit offsets.\n",
3607                                  (unsigned int)IVAL(inbuf,smb_vwv12) ));
3608                         reply_doserror(req, ERRDOS, ERRbadaccess);
3609                         END_PROFILE(SMBwriteX);
3610                         return;
3611                 }
3612
3613 #endif /* LARGE_SMB_OFF_T */
3614         }
3615
3616         if (is_locked(fsp,(uint32)req->smbpid,
3617                       (SMB_BIG_UINT)numtowrite,
3618                       (SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3619                 reply_doserror(req, ERRDOS, ERRlock);
3620                 END_PROFILE(SMBwriteX);
3621                 return;
3622         }
3623
3624         /* X/Open SMB protocol says that, unlike SMBwrite
3625         if the length is zero then NO truncation is
3626         done, just a write of zero. To truncate a file,
3627         use SMBwrite. */
3628
3629         if(numtowrite == 0) {
3630                 nwritten = 0;
3631         } else {
3632
3633                 if (schedule_aio_write_and_X(conn, req, fsp, data, startpos,
3634                                              numtowrite)) {
3635                         END_PROFILE(SMBwriteX);
3636                         return;
3637                 }
3638
3639                 nwritten = write_file(fsp,data,startpos,numtowrite);
3640         }
3641
3642         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3643                 reply_unixerror(req, ERRHRD, ERRdiskfull);
3644                 END_PROFILE(SMBwriteX);
3645                 return;
3646         }
3647
3648         reply_outbuf(req, 6, 0);
3649         SSVAL(req->outbuf,smb_vwv2,nwritten);
3650         if (large_writeX)
3651                 SSVAL(req->outbuf,smb_vwv4,(nwritten>>16)&1);
3652
3653         if (nwritten < (ssize_t)numtowrite) {
3654                 SCVAL(req->outbuf,smb_rcls,ERRHRD);
3655                 SSVAL(req->outbuf,smb_err,ERRdiskfull);
3656         }
3657
3658         DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
3659                 fsp->fnum, (int)numtowrite, (int)nwritten));
3660
3661         status = sync_file(conn, fsp, write_through);
3662         if (!NT_STATUS_IS_OK(status)) {
3663                 DEBUG(5,("reply_write_and_X: sync_file for %s returned %s\n",
3664                         fsp->fsp_name, nt_errstr(status) ));
3665                 reply_nterror(req, status);
3666                 END_PROFILE(SMBwriteX);
3667                 return;
3668         }
3669
3670         END_PROFILE(SMBwriteX);
3671         chain_reply_new(req);
3672         return;
3673 }
3674
3675 /****************************************************************************
3676  Reply to a lseek.
3677 ****************************************************************************/
3678
3679 void reply_lseek(connection_struct *conn, struct smb_request *req)
3680 {
3681         SMB_OFF_T startpos;
3682         SMB_OFF_T res= -1;
3683         int mode,umode;
3684         files_struct *fsp;
3685
3686         START_PROFILE(SMBlseek);
3687
3688         if (req->wct < 4) {
3689                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3690                 END_PROFILE(SMBlseek);
3691                 return;
3692         }
3693
3694         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3695
3696         if (!check_fsp(conn, req, fsp, &current_user)) {
3697                 return;
3698         }
3699
3700         flush_write_cache(fsp, SEEK_FLUSH);
3701
3702         mode = SVAL(req->inbuf,smb_vwv1) & 3;
3703         /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
3704         startpos = (SMB_OFF_T)IVALS(req->inbuf,smb_vwv2);
3705
3706         switch (mode) {
3707                 case 0:
3708                         umode = SEEK_SET;
3709                         res = startpos;
3710                         break;
3711                 case 1:
3712                         umode = SEEK_CUR;
3713                         res = fsp->fh->pos + startpos;
3714                         break;
3715                 case 2:
3716                         umode = SEEK_END;
3717                         break;
3718                 default:
3719                         umode = SEEK_SET;
3720                         res = startpos;
3721                         break;
3722         }
3723
3724         if (umode == SEEK_END) {
3725                 if((res = SMB_VFS_LSEEK(fsp,fsp->fh->fd,startpos,umode)) == -1) {
3726                         if(errno == EINVAL) {
3727                                 SMB_OFF_T current_pos = startpos;
3728                                 SMB_STRUCT_STAT sbuf;
3729
3730                                 if(SMB_VFS_FSTAT(fsp,fsp->fh->fd, &sbuf) == -1) {
3731                                         reply_unixerror(req, ERRDOS,
3732                                                         ERRnoaccess);
3733                                         END_PROFILE(SMBlseek);
3734                                         return;
3735                                 }
3736
3737                                 current_pos += sbuf.st_size;
3738                                 if(current_pos < 0)
3739                                         res = SMB_VFS_LSEEK(fsp,fsp->fh->fd,0,SEEK_SET);
3740                         }
3741                 }
3742
3743                 if(res == -1) {
3744                         reply_unixerror(req, ERRDOS, ERRnoaccess);
3745                         END_PROFILE(SMBlseek);
3746                         return;
3747                 }
3748         }
3749
3750         fsp->fh->pos = res;
3751
3752         reply_outbuf(req, 2, 0);
3753         SIVAL(req->outbuf,smb_vwv0,res);
3754
3755         DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
3756                 fsp->fnum, (double)startpos, (double)res, mode));
3757
3758         END_PROFILE(SMBlseek);
3759         return;
3760 }
3761
3762 /****************************************************************************
3763  Reply to a flush.
3764 ****************************************************************************/
3765
3766 void reply_flush(connection_struct *conn, struct smb_request *req)
3767 {
3768         uint16 fnum;
3769         files_struct *fsp;
3770
3771         START_PROFILE(SMBflush);
3772
3773         if (req->wct < 1) {
3774                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3775                 return;
3776         }
3777
3778         fnum = SVAL(req->inbuf,smb_vwv0);
3779         fsp = file_fsp(fnum);
3780
3781         if ((fnum != 0xFFFF) && !check_fsp(conn, req, fsp, &current_user)) {
3782                 return;
3783         }
3784
3785         if (!fsp) {
3786                 file_sync_all(conn);
3787         } else {
3788                 NTSTATUS status = sync_file(conn, fsp, True);
3789                 if (!NT_STATUS_IS_OK(status)) {
3790                         DEBUG(5,("reply_flush: sync_file for %s returned %s\n",
3791                                 fsp->fsp_name, nt_errstr(status) ));
3792                         reply_nterror(req, status);
3793                         END_PROFILE(SMBflush);
3794                         return;
3795                 }
3796         }
3797
3798         reply_outbuf(req, 0, 0);
3799
3800         DEBUG(3,("flush\n"));
3801         END_PROFILE(SMBflush);
3802         return;
3803 }
3804
3805 /****************************************************************************
3806  Reply to a exit.
3807  conn POINTER CAN BE NULL HERE !
3808 ****************************************************************************/
3809
3810 void reply_exit(connection_struct *conn, struct smb_request *req)
3811 {
3812         START_PROFILE(SMBexit);
3813
3814         file_close_pid(req->smbpid, req->vuid);
3815
3816         reply_outbuf(req, 0, 0);
3817
3818         DEBUG(3,("exit\n"));
3819
3820         END_PROFILE(SMBexit);
3821         return;
3822 }
3823
3824 /****************************************************************************
3825  Reply to a close - has to deal with closing a directory opened by NT SMB's.
3826 ****************************************************************************/
3827
3828 void reply_close(connection_struct *conn, struct smb_request *req)
3829 {
3830         NTSTATUS status = NT_STATUS_OK;
3831         files_struct *fsp = NULL;
3832         START_PROFILE(SMBclose);
3833
3834         if (req->wct < 3) {
3835                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3836                 END_PROFILE(SMBclose);
3837                 return;
3838         }
3839
3840         /* If it's an IPC, pass off to the pipe handler. */
3841         if (IS_IPC(conn)) {
3842                 reply_pipe_close(conn, req);
3843                 END_PROFILE(SMBclose);
3844                 return;
3845         }
3846
3847         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3848
3849         /*
3850          * We can only use CHECK_FSP if we know it's not a directory.
3851          */
3852
3853         if(!fsp || (fsp->conn != conn) || (fsp->vuid != current_user.vuid)) {
3854                 reply_doserror(req, ERRDOS, ERRbadfid);
3855                 END_PROFILE(SMBclose);
3856                 return;
3857         }
3858
3859         if(fsp->is_directory) {
3860                 /*
3861                  * Special case - close NT SMB directory handle.
3862                  */
3863                 DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
3864                 status = close_file(fsp,NORMAL_CLOSE);
3865         } else {
3866                 /*
3867                  * Close ordinary file.
3868                  */
3869
3870                 DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
3871                          fsp->fh->fd, fsp->fnum,
3872                          conn->num_files_open));
3873
3874                 /*
3875                  * Take care of any time sent in the close.
3876                  */
3877
3878                 fsp_set_pending_modtime(fsp, convert_time_t_to_timespec(
3879                                                 srv_make_unix_date3(
3880                                                         req->inbuf+smb_vwv1)));
3881
3882                 /*
3883                  * close_file() returns the unix errno if an error
3884                  * was detected on close - normally this is due to
3885                  * a disk full error. If not then it was probably an I/O error.
3886                  */
3887
3888                 status = close_file(fsp,NORMAL_CLOSE);
3889         }
3890
3891         if (!NT_STATUS_IS_OK(status)) {
3892                 reply_nterror(req, status);
3893                 END_PROFILE(SMBclose);
3894                 return;
3895         }
3896
3897         reply_outbuf(req, 0, 0);
3898         END_PROFILE(SMBclose);
3899         return;
3900 }
3901
3902 /****************************************************************************
3903  Reply to a writeclose (Core+ protocol).
3904 ****************************************************************************/
3905
3906 int reply_writeclose(connection_struct *conn,
3907                      char *inbuf,char *outbuf, int size, int dum_buffsize)
3908 {
3909         size_t numtowrite;
3910         ssize_t nwritten = -1;
3911         int outsize = 0;
3912         NTSTATUS close_status = NT_STATUS_OK;
3913         SMB_OFF_T startpos;
3914         char *data;
3915         struct timespec mtime;
3916         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
3917         START_PROFILE(SMBwriteclose);
3918
3919         CHECK_FSP(fsp,conn);
3920         if (!CHECK_WRITE(fsp)) {
3921                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
3922         }
3923
3924         numtowrite = SVAL(inbuf,smb_vwv1);
3925         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
3926         mtime = convert_time_t_to_timespec(srv_make_unix_date3(inbuf+smb_vwv4));
3927         data = smb_buf(inbuf) + 1;
3928
3929         if (numtowrite && is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)numtowrite,(SMB_BIG_UINT)startpos, WRITE_LOCK)) {
3930                 END_PROFILE(SMBwriteclose);
3931                 return ERROR_DOS(ERRDOS,ERRlock);
3932         }
3933
3934         nwritten = write_file(fsp,data,startpos,numtowrite);
3935
3936         set_filetime(conn, fsp->fsp_name, mtime);
3937
3938         /*
3939          * More insanity. W2K only closes the file if writelen > 0.
3940          * JRA.
3941          */
3942
3943         if (numtowrite) {
3944                 DEBUG(3,("reply_writeclose: zero length write doesn't close file %s\n",
3945                         fsp->fsp_name ));
3946                 close_status = close_file(fsp,NORMAL_CLOSE);
3947         }
3948
3949         DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
3950                  fsp->fnum, (int)numtowrite, (int)nwritten,
3951                  conn->num_files_open));
3952
3953         if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
3954                 END_PROFILE(SMBwriteclose);
3955                 return(UNIXERROR(ERRHRD,ERRdiskfull));
3956         }
3957
3958         if(!NT_STATUS_IS_OK(close_status)) {
3959                 END_PROFILE(SMBwriteclose);
3960                 return ERROR_NT(close_status);
3961         }
3962
3963         outsize = set_message(inbuf,outbuf,1,0,True);
3964
3965         SSVAL(outbuf,smb_vwv0,nwritten);
3966         END_PROFILE(SMBwriteclose);
3967         return(outsize);
3968 }
3969
3970 #undef DBGC_CLASS
3971 #define DBGC_CLASS DBGC_LOCKING
3972
3973 /****************************************************************************
3974  Reply to a lock.
3975 ****************************************************************************/
3976
3977 void reply_lock(connection_struct *conn, struct smb_request *req)
3978 {
3979         SMB_BIG_UINT count,offset;
3980         NTSTATUS status;
3981         files_struct *fsp;
3982         struct byte_range_lock *br_lck = NULL;
3983
3984         START_PROFILE(SMBlock);
3985
3986         if (req->wct < 5) {
3987                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
3988                 END_PROFILE(SMBlock);
3989                 return;
3990         }
3991
3992         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
3993
3994         if (!check_fsp(conn, req, fsp, &current_user)) {
3995                 END_PROFILE(SMBlock);
3996                 return;
3997         }
3998
3999         release_level_2_oplocks_on_change(fsp);
4000
4001         count = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv1);
4002         offset = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv3);
4003
4004         DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4005                  fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
4006
4007         br_lck = do_lock(smbd_messaging_context(),
4008                         fsp,
4009                         req->smbpid,
4010                         count,
4011                         offset,
4012                         WRITE_LOCK,
4013                         WINDOWS_LOCK,
4014                         False, /* Non-blocking lock. */
4015                         &status,
4016                         NULL);
4017
4018         TALLOC_FREE(br_lck);
4019
4020         if (NT_STATUS_V(status)) {
4021                 reply_nterror(req, status);
4022                 END_PROFILE(SMBlock);
4023                 return;
4024         }
4025
4026         reply_outbuf(req, 0, 0);
4027
4028         END_PROFILE(SMBlock);
4029         return;
4030 }
4031
4032 /****************************************************************************
4033  Reply to a unlock.
4034 ****************************************************************************/
4035
4036 void reply_unlock(connection_struct *conn, struct smb_request *req)
4037 {
4038         SMB_BIG_UINT count,offset;
4039         NTSTATUS status;
4040         files_struct *fsp;
4041
4042         START_PROFILE(SMBunlock);
4043
4044         if (req->wct < 5) {
4045                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4046                 END_PROFILE(SMBunlock);
4047                 return;
4048         }
4049
4050         fsp = file_fsp(SVAL(req->inbuf,smb_vwv0));
4051
4052         if (!check_fsp(conn, req, fsp, &current_user)) {
4053                 END_PROFILE(SMBunlock);
4054                 return;
4055         }
4056
4057         count = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv1);
4058         offset = (SMB_BIG_UINT)IVAL(req->inbuf,smb_vwv3);
4059
4060         status = do_unlock(smbd_messaging_context(),
4061                         fsp,
4062                         req->smbpid,
4063                         count,
4064                         offset,
4065                         WINDOWS_LOCK);
4066
4067         if (NT_STATUS_V(status)) {
4068                 reply_nterror(req, status);
4069                 END_PROFILE(SMBunlock);
4070                 return;
4071         }
4072
4073         DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
4074                     fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
4075
4076         reply_outbuf(req, 0, 0);
4077
4078         END_PROFILE(SMBunlock);
4079         return;
4080 }
4081
4082 #undef DBGC_CLASS
4083 #define DBGC_CLASS DBGC_ALL
4084
4085 /****************************************************************************
4086  Reply to a tdis.
4087  conn POINTER CAN BE NULL HERE !
4088 ****************************************************************************/
4089
4090 void reply_tdis(connection_struct *conn, struct smb_request *req)
4091 {
4092         START_PROFILE(SMBtdis);
4093
4094         if (!conn) {
4095                 DEBUG(4,("Invalid connection in tdis\n"));
4096                 reply_doserror(req, ERRSRV, ERRinvnid);
4097                 END_PROFILE(SMBtdis);
4098                 return;
4099         }
4100
4101         conn->used = False;
4102
4103         close_cnum(conn,req->vuid);
4104
4105         reply_outbuf(req, 0, 0);
4106         END_PROFILE(SMBtdis);
4107         return;
4108 }
4109
4110 /****************************************************************************
4111  Reply to a echo.
4112  conn POINTER CAN BE NULL HERE !
4113 ****************************************************************************/
4114
4115 void reply_echo(connection_struct *conn, struct smb_request *req)
4116 {
4117         int smb_reverb;
4118         int seq_num;
4119         unsigned int data_len = smb_buflen(req->inbuf);
4120
4121         START_PROFILE(SMBecho);
4122
4123         if (req->wct < 1) {
4124                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
4125                 END_PROFILE(SMBecho);
4126                 return;
4127         }
4128
4129         if (data_len > BUFFER_SIZE) {
4130                 DEBUG(0,("reply_echo: data_len too large.\n"));
4131                 reply_nterror(req, NT_STATUS_INSUFFICIENT_RESOURCES);
4132                 END_PROFILE(SMBecho);
4133                 return;
4134         }
4135
4136         smb_reverb = SVAL(req->inbuf,smb_vwv0);
4137
4138         reply_outbuf(req, 1, data_len);
4139
4140         /* copy any incoming data back out */
4141         if (data_len > 0) {
4142                 memcpy(smb_buf(req->outbuf),smb_buf(req->inbuf),data_len);
4143         }
4144
4145         if (smb_reverb > 100) {
4146                 DEBUG(0,("large reverb (%d)?? Setting to 100\n",smb_reverb));
4147                 smb_reverb = 100;
4148         }
4149
4150         for (seq_num =1 ; seq_num <= smb_reverb ; seq_num++) {
4151                 SSVAL(req->outbuf,smb_vwv0,seq_num);
4152
4153                 show_msg((char *)req->outbuf);
4154                 if (!send_smb(smbd_server_fd(),(char *)req->outbuf))
4155                         exit_server_cleanly("reply_echo: send_smb failed.");
4156         }
4157
4158         DEBUG(3,("echo %d times\n", smb_reverb));
4159
4160         TALLOC_FREE(req->outbuf);
4161
4162         smb_echo_count++;
4163
4164         END_PROFILE(SMBecho);
4165         return;
4166 }
4167
4168 /****************************************************************************
4169  Reply to a printopen.
4170 ****************************************************************************/
4171
4172 int reply_printopen(connection_struct *conn,
4173                     char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
4174 {
4175         int outsize = 0;
4176         files_struct *fsp;
4177         NTSTATUS status;
4178
4179         START_PROFILE(SMBsplopen);
4180
4181         if (!CAN_PRINT(conn)) {
4182                 END_PROFILE(SMBsplopen);
4183                 return ERROR_DOS(ERRDOS,ERRnoaccess);
4184         }
4185
4186         /* Open for exclusive use, write only. */
4187         status = print_fsp_open(conn, NULL, &fsp);
4188
4189         if (!NT_STATUS_IS_OK(status)) {
4190                 END_PROFILE(SMBsplopen);
4191                 return(ERROR_NT(status));
4192         }
4193
4194         outsize = set_message(inbuf,outbuf,1,0,True);
4195         SSVAL(outbuf,smb_vwv0,fsp->fnum);
4196
4197         DEBUG(3,("openprint fd=%d fnum=%d\n",
4198                  fsp->fh->fd, fsp->fnum));
4199
4200         END_PROFILE(SMBsplopen);
4201         return(outsize);
4202 }
4203
4204 /****************************************************************************
4205  Reply to a printclose.
4206 ****************************************************************************/
4207
4208 int reply_printclose(connection_struct *conn,
4209                      char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
4210 {
4211         int outsize = set_message(inbuf,outbuf,0,0,False);
4212         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
4213         NTSTATUS status;
4214         START_PROFILE(SMBsplclose);
4215
4216         CHECK_FSP(fsp,conn);
4217
4218         if (!CAN_PRINT(conn)) {
4219                 END_PROFILE(SMBsplclose);
4220                 return ERROR_NT(NT_STATUS_DOS(ERRSRV, ERRerror));
4221         }
4222
4223         DEBUG(3,("printclose fd=%d fnum=%d\n",
4224                  fsp->fh->fd,fsp->fnum));
4225
4226         status = close_file(fsp,NORMAL_CLOSE);
4227
4228         if(!NT_STATUS_IS_OK(status)) {
4229                 END_PROFILE(SMBsplclose);
4230                 return ERROR_NT(status);
4231         }
4232
4233         END_PROFILE(SMBsplclose);
4234         return(outsize);
4235 }
4236
4237 /****************************************************************************
4238  Reply to a printqueue.
4239 ****************************************************************************/
4240
4241 int reply_printqueue(connection_struct *conn,
4242                      char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
4243 {
4244         int outsize = set_message(inbuf,outbuf,2,3,True);
4245         int max_count = SVAL(inbuf,smb_vwv0);
4246         int start_index = SVAL(inbuf,smb_vwv1);
4247         START_PROFILE(SMBsplretq);
4248
4249         /* we used to allow the client to get the cnum wrong, but that
4250            is really quite gross and only worked when there was only
4251            one printer - I think we should now only accept it if they
4252            get it right (tridge) */
4253         if (!CAN_PRINT(conn)) {
4254                 END_PROFILE(SMBsplretq);
4255                 return ERROR_DOS(ERRDOS,ERRnoaccess);
4256         }
4257
4258         SSVAL(outbuf,smb_vwv0,0);
4259         SSVAL(outbuf,smb_vwv1,0);
4260         SCVAL(smb_buf(outbuf),0,1);
4261         SSVAL(smb_buf(outbuf),1,0);
4262
4263         DEBUG(3,("printqueue start_index=%d max_count=%d\n",
4264                  start_index, max_count));
4265
4266         {
4267                 print_queue_struct *queue = NULL;
4268                 print_status_struct status;
4269                 char *p = smb_buf(outbuf) + 3;
4270                 int count = print_queue_status(SNUM(conn), &queue, &status);
4271                 int num_to_get = ABS(max_count);
4272                 int first = (max_count>0?start_index:start_index+max_count+1);
4273                 int i;
4274
4275                 if (first >= count)
4276                         num_to_get = 0;
4277                 else
4278                         num_to_get = MIN(num_to_get,count-first);
4279
4280
4281                 for (i=first;i<first+num_to_get;i++) {
4282                         srv_put_dos_date2(p,0,queue[i].time);
4283                         SCVAL(p,4,(queue[i].status==LPQ_PRINTING?2:3));
4284                         SSVAL(p,5, queue[i].job);
4285                         SIVAL(p,7,queue[i].size);
4286                         SCVAL(p,11,0);
4287                         srvstr_push(outbuf, SVAL(outbuf, smb_flg2), p+12,
4288                                     queue[i].fs_user, 16, STR_ASCII);
4289                         p += 28;
4290                 }
4291
4292                 if (count > 0) {
4293                         outsize = set_message(inbuf,outbuf,2,28*count+3,False);
4294                         SSVAL(outbuf,smb_vwv0,count);
4295                         SSVAL(outbuf,smb_vwv1,(max_count>0?first+count:first-1));
4296                         SCVAL(smb_buf(outbuf),0,1);
4297                         SSVAL(smb_buf(outbuf),1,28*count);
4298                 }
4299
4300                 SAFE_FREE(queue);
4301
4302                 DEBUG(3,("%d entries returned in queue\n",count));
4303         }
4304
4305         END_PROFILE(SMBsplretq);
4306         return(outsize);
4307 }
4308
4309 /****************************************************************************
4310  Reply to a printwrite.
4311 ****************************************************************************/
4312
4313 int reply_printwrite(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
4314 {
4315         int numtowrite;
4316         int outsize = set_message(inbuf,outbuf,0,0,False);
4317         char *data;
4318         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
4319
4320         START_PROFILE(SMBsplwr);
4321
4322         if (!CAN_PRINT(conn)) {
4323                 END_PROFILE(SMBsplwr);
4324                 return ERROR_DOS(ERRDOS,ERRnoaccess);
4325         }
4326
4327         CHECK_FSP(fsp,conn);
4328         if (!CHECK_WRITE(fsp)) {
4329                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
4330         }
4331
4332         numtowrite = SVAL(smb_buf(inbuf),1);
4333         data = smb_buf(inbuf) + 3;
4334
4335         if (write_file(fsp,data,-1,numtowrite) != numtowrite) {
4336                 END_PROFILE(SMBsplwr);
4337                 return(UNIXERROR(ERRHRD,ERRdiskfull));
4338         }
4339
4340         DEBUG( 3, ( "printwrite fnum=%d num=%d\n", fsp->fnum, numtowrite ) );
4341
4342         END_PROFILE(SMBsplwr);
4343         return(outsize);
4344 }
4345
4346 /****************************************************************************
4347  Reply to a mkdir.
4348 ****************************************************************************/
4349
4350 void reply_mkdir(connection_struct *conn, struct smb_request *req)
4351 {
4352         pstring directory;
4353         NTSTATUS status;
4354         SMB_STRUCT_STAT sbuf;
4355
4356         START_PROFILE(SMBmkdir);
4357
4358         srvstr_get_path((char *)req->inbuf, req->flags2, directory,
4359                         smb_buf(req->inbuf) + 1, sizeof(directory), 0,
4360                         STR_TERMINATE, &status);
4361         if (!NT_STATUS_IS_OK(status)) {
4362                 reply_nterror(req, status);
4363                 END_PROFILE(SMBmkdir);
4364                 return;
4365         }
4366
4367         status = resolve_dfspath(conn,
4368                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
4369                                  directory);
4370         if (!NT_STATUS_IS_OK(status)) {
4371                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
4372                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
4373                                         ERRSRV, ERRbadpath);
4374                         END_PROFILE(SMBmkdir);
4375                         return;
4376                 }
4377                 reply_nterror(req, status);
4378                 END_PROFILE(SMBmkdir);
4379                 return;
4380         }
4381
4382         status = unix_convert(conn, directory, False, NULL, &sbuf);
4383         if (!NT_STATUS_IS_OK(status)) {
4384                 reply_nterror(req, status);
4385                 END_PROFILE(SMBmkdir);
4386                 return;
4387         }
4388
4389         status = check_name(conn, directory);
4390         if (!NT_STATUS_IS_OK(status)) {
4391                 reply_nterror(req, status);
4392                 END_PROFILE(SMBmkdir);
4393                 return;
4394         }
4395
4396         status = create_directory(conn, directory);
4397
4398         DEBUG(5, ("create_directory returned %s\n", nt_errstr(status)));
4399
4400         if (!NT_STATUS_IS_OK(status)) {
4401
4402                 if (!use_nt_status()
4403                     && NT_STATUS_EQUAL(status,
4404                                        NT_STATUS_OBJECT_NAME_COLLISION)) {
4405                         /*
4406                          * Yes, in the DOS error code case we get a
4407                          * ERRDOS:ERRnoaccess here. See BASE-SAMBA3ERROR
4408                          * samba4 torture test.
4409                          */
4410                         status = NT_STATUS_DOS(ERRDOS, ERRnoaccess);
4411                 }
4412
4413                 reply_nterror(req, status);
4414                 END_PROFILE(SMBmkdir);
4415                 return;
4416         }
4417
4418         reply_outbuf(req, 0, 0);
4419
4420         DEBUG( 3, ( "mkdir %s\n", directory ) );
4421
4422         END_PROFILE(SMBmkdir);
4423         return;
4424 }
4425
4426 /****************************************************************************
4427  Static function used by reply_rmdir to delete an entire directory
4428  tree recursively. Return True on ok, False on fail.
4429 ****************************************************************************/
4430
4431 static BOOL recursive_rmdir(connection_struct *conn, char *directory)
4432 {
4433         const char *dname = NULL;
4434         BOOL ret = True;
4435         long offset = 0;
4436         struct smb_Dir *dir_hnd = OpenDir(conn, directory, NULL, 0);
4437
4438         if(dir_hnd == NULL)
4439                 return False;
4440
4441         while((dname = ReadDirName(dir_hnd, &offset))) {
4442                 pstring fullname;
4443                 SMB_STRUCT_STAT st;
4444
4445                 if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0))
4446                         continue;
4447
4448                 if (!is_visible_file(conn, directory, dname, &st, False))
4449                         continue;
4450
4451                 /* Construct the full name. */
4452                 if(strlen(directory) + strlen(dname) + 1 >= sizeof(fullname)) {
4453                         errno = ENOMEM;
4454                         ret = False;
4455                         break;
4456                 }
4457
4458                 pstrcpy(fullname, directory);
4459                 pstrcat(fullname, "/");
4460                 pstrcat(fullname, dname);
4461
4462                 if(SMB_VFS_LSTAT(conn,fullname, &st) != 0) {
4463                         ret = False;
4464                         break;
4465                 }
4466
4467                 if(st.st_mode & S_IFDIR) {
4468                         if(!recursive_rmdir(conn, fullname)) {
4469                                 ret = False;
4470                                 break;
4471                         }
4472                         if(SMB_VFS_RMDIR(conn,fullname) != 0) {
4473                                 ret = False;
4474                                 break;
4475                         }
4476                 } else if(SMB_VFS_UNLINK(conn,fullname) != 0) {
4477                         ret = False;
4478                         break;
4479                 }
4480         }
4481         CloseDir(dir_hnd);
4482         return ret;
4483 }
4484
4485 /****************************************************************************
4486  The internals of the rmdir code - called elsewhere.
4487 ****************************************************************************/
4488
4489 NTSTATUS rmdir_internals(connection_struct *conn, const char *directory)
4490 {
4491         int ret;
4492         SMB_STRUCT_STAT st;
4493
4494         /* Might be a symlink. */
4495         if(SMB_VFS_LSTAT(conn, directory, &st) != 0) {
4496                 return map_nt_error_from_unix(errno);
4497         }
4498
4499         if (S_ISLNK(st.st_mode)) {
4500                 /* Is what it points to a directory ? */
4501                 if(SMB_VFS_STAT(conn, directory, &st) != 0) {
4502                         return map_nt_error_from_unix(errno);
4503                 }
4504                 if (!(S_ISDIR(st.st_mode))) {
4505                         return NT_STATUS_NOT_A_DIRECTORY;
4506                 }
4507                 ret = SMB_VFS_UNLINK(conn,directory);
4508         } else {
4509                 ret = SMB_VFS_RMDIR(conn,directory);
4510         }
4511         if (ret == 0) {
4512                 notify_fname(conn, NOTIFY_ACTION_REMOVED,
4513                              FILE_NOTIFY_CHANGE_DIR_NAME,
4514                              directory);
4515                 return NT_STATUS_OK;
4516         }
4517
4518         if(((errno == ENOTEMPTY)||(errno == EEXIST)) && lp_veto_files(SNUM(conn))) {
4519                 /*
4520                  * Check to see if the only thing in this directory are
4521                  * vetoed files/directories. If so then delete them and
4522                  * retry. If we fail to delete any of them (and we *don't*
4523                  * do a recursive delete) then fail the rmdir.
4524                  */
4525                 const char *dname;
4526                 long dirpos = 0;
4527                 struct smb_Dir *dir_hnd = OpenDir(conn, directory, NULL, 0);
4528
4529                 if(dir_hnd == NULL) {
4530                         errno = ENOTEMPTY;
4531                         goto err;
4532                 }
4533
4534                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
4535                         if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0))
4536                                 continue;
4537                         if (!is_visible_file(conn, directory, dname, &st, False))
4538                                 continue;
4539                         if(!IS_VETO_PATH(conn, dname)) {
4540                                 CloseDir(dir_hnd);
4541                                 errno = ENOTEMPTY;
4542                                 goto err;
4543                         }
4544                 }
4545
4546                 /* We only have veto files/directories. Recursive delete. */
4547
4548                 RewindDir(dir_hnd,&dirpos);
4549                 while ((dname = ReadDirName(dir_hnd,&dirpos))) {
4550                         pstring fullname;
4551
4552                         if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0))
4553                                 continue;
4554                         if (!is_visible_file(conn, directory, dname, &st, False))
4555                                 continue;
4556
4557                         /* Construct the full name. */
4558                         if(strlen(directory) + strlen(dname) + 1 >= sizeof(fullname)) {
4559                                 errno = ENOMEM;
4560                                 break;
4561                         }
4562
4563                         pstrcpy(fullname, directory);
4564                         pstrcat(fullname, "/");
4565                         pstrcat(fullname, dname);
4566
4567                         if(SMB_VFS_LSTAT(conn,fullname, &st) != 0)
4568                                 break;
4569                         if(st.st_mode & S_IFDIR) {
4570                                 if(lp_recursive_veto_delete(SNUM(conn))) {
4571                                         if(!recursive_rmdir(conn, fullname))
4572                                                 break;
4573                                 }
4574                                 if(SMB_VFS_RMDIR(conn,fullname) != 0)
4575                                         break;
4576                         } else if(SMB_VFS_UNLINK(conn,fullname) != 0)
4577                                 break;
4578                 }
4579                 CloseDir(dir_hnd);
4580                 /* Retry the rmdir */
4581                 ret = SMB_VFS_RMDIR(conn,directory);
4582         }
4583
4584   err:
4585
4586         if (ret != 0) {
4587                 DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
4588                          "%s\n", directory,strerror(errno)));
4589                 return map_nt_error_from_unix(errno);
4590         }
4591
4592         notify_fname(conn, NOTIFY_ACTION_REMOVED,
4593                      FILE_NOTIFY_CHANGE_DIR_NAME,
4594                      directory);
4595
4596         return NT_STATUS_OK;
4597 }
4598
4599 /****************************************************************************
4600  Reply to a rmdir.
4601 ****************************************************************************/
4602
4603 void reply_rmdir(connection_struct *conn, struct smb_request *req)
4604 {
4605         pstring directory;
4606         SMB_STRUCT_STAT sbuf;
4607         NTSTATUS status;
4608         START_PROFILE(SMBrmdir);
4609
4610         srvstr_get_path((char *)req->inbuf, req->flags2, directory,
4611                         smb_buf(req->inbuf) + 1, sizeof(directory), 0,
4612                         STR_TERMINATE, &status);
4613         if (!NT_STATUS_IS_OK(status)) {
4614                 reply_nterror(req, status);
4615                 END_PROFILE(SMBrmdir);
4616                 return;
4617         }
4618
4619         status = resolve_dfspath(conn,
4620                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
4621                                  directory);
4622         if (!NT_STATUS_IS_OK(status)) {
4623                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
4624                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
4625                                         ERRSRV, ERRbadpath);
4626                         END_PROFILE(SMBrmdir);
4627                         return;
4628                 }
4629                 reply_nterror(req, status);
4630                 END_PROFILE(SMBrmdir);
4631                 return;
4632         }
4633
4634         status = unix_convert(conn, directory, False, NULL, &sbuf);
4635         if (!NT_STATUS_IS_OK(status)) {
4636                 reply_nterror(req, status);
4637                 END_PROFILE(SMBrmdir);
4638                 return;
4639         }
4640
4641         status = check_name(conn, directory);
4642         if (!NT_STATUS_IS_OK(status)) {
4643                 reply_nterror(req, status);
4644                 END_PROFILE(SMBrmdir);
4645                 return;
4646         }
4647
4648         dptr_closepath(directory, req->smbpid);
4649         status = rmdir_internals(conn, directory);
4650         if (!NT_STATUS_IS_OK(status)) {
4651                 reply_nterror(req, status);
4652                 END_PROFILE(SMBrmdir);
4653                 return;
4654         }
4655
4656         reply_outbuf(req, 0, 0);
4657
4658         DEBUG( 3, ( "rmdir %s\n", directory ) );
4659
4660         END_PROFILE(SMBrmdir);
4661         return;
4662 }
4663
4664 /*******************************************************************
4665  Resolve wildcards in a filename rename.
4666  Note that name is in UNIX charset and thus potentially can be more
4667  than fstring buffer (255 bytes) especially in default UTF-8 case.
4668  Therefore, we use pstring inside and all calls should ensure that
4669  name2 is at least pstring-long (they do already)
4670 ********************************************************************/
4671
4672 static BOOL resolve_wildcards(const char *name1, char *name2)
4673 {
4674         pstring root1,root2;
4675         pstring ext1,ext2;
4676         char *p,*p2, *pname1, *pname2;
4677         int available_space, actual_space;
4678
4679         pname1 = strrchr_m(name1,'/');
4680         pname2 = strrchr_m(name2,'/');
4681
4682         if (!pname1 || !pname2)
4683                 return(False);
4684
4685         pstrcpy(root1,pname1);
4686         pstrcpy(root2,pname2);
4687         p = strrchr_m(root1,'.');
4688         if (p) {
4689                 *p = 0;
4690                 pstrcpy(ext1,p+1);
4691         } else {
4692                 pstrcpy(ext1,"");
4693         }
4694         p = strrchr_m(root2,'.');
4695         if (p) {
4696                 *p = 0;
4697                 pstrcpy(ext2,p+1);
4698         } else {
4699                 pstrcpy(ext2,"");
4700         }
4701
4702         p = root1;
4703         p2 = root2;
4704         while (*p2) {
4705                 if (*p2 == '?') {
4706                         *p2 = *p;
4707                         p2++;
4708                 } else if (*p2 == '*') {
4709                         pstrcpy(p2, p);
4710                         break;
4711                 } else {
4712                         p2++;
4713                 }
4714                 if (*p)
4715                         p++;
4716         }
4717
4718         p = ext1;
4719         p2 = ext2;
4720         while (*p2) {
4721                 if (*p2 == '?') {
4722                         *p2 = *p;
4723                         p2++;
4724                 } else if (*p2 == '*') {
4725                         pstrcpy(p2, p);
4726                         break;
4727                 } else {
4728                         p2++;
4729                 }
4730                 if (*p)
4731                         p++;
4732         }
4733
4734         available_space = sizeof(pstring) - PTR_DIFF(pname2, name2);
4735
4736         if (ext2[0]) {
4737                 actual_space = snprintf(pname2, available_space - 1, "%s.%s", root2, ext2);
4738                 if (actual_space >= available_space - 1) {
4739                         DEBUG(1,("resolve_wildcards: can't fit resolved name into specified buffer (overrun by %d bytes)\n",
4740                                 actual_space - available_space));
4741                 }
4742         } else {
4743                 pstrcpy_base(pname2, root2, name2);
4744         }
4745
4746         return(True);
4747 }
4748
4749 /****************************************************************************
4750  Ensure open files have their names updated. Updated to notify other smbd's
4751  asynchronously.
4752 ****************************************************************************/
4753
4754 static void rename_open_files(connection_struct *conn,
4755                               struct share_mode_lock *lck,
4756                               const char *newname)
4757 {
4758         files_struct *fsp;
4759         BOOL did_rename = False;
4760
4761         for(fsp = file_find_di_first(lck->id); fsp;
4762             fsp = file_find_di_next(fsp)) {
4763                 /* fsp_name is a relative path under the fsp. To change this for other
4764                    sharepaths we need to manipulate relative paths. */
4765                 /* TODO - create the absolute path and manipulate the newname
4766                    relative to the sharepath. */
4767                 if (fsp->conn != conn) {
4768                         continue;
4769                 }
4770                 DEBUG(10,("rename_open_files: renaming file fnum %d (file_id %s) from %s -> %s\n",
4771                           fsp->fnum, file_id_static_string(&fsp->file_id),
4772                         fsp->fsp_name, newname ));
4773                 string_set(&fsp->fsp_name, newname);
4774                 did_rename = True;
4775         }
4776
4777         if (!did_rename) {
4778                 DEBUG(10,("rename_open_files: no open files on file_id %s for %s\n",
4779                           file_id_static_string(&lck->id), newname ));
4780         }
4781
4782         /* Send messages to all smbd's (not ourself) that the name has changed. */
4783         rename_share_filename(smbd_messaging_context(), lck, conn->connectpath,
4784                               newname);
4785 }
4786
4787 /****************************************************************************
4788  We need to check if the source path is a parent directory of the destination
4789  (ie. a rename of /foo/bar/baz -> /foo/bar/baz/bibble/bobble. If so we must
4790  refuse the rename with a sharing violation. Under UNIX the above call can
4791  *succeed* if /foo/bar/baz is a symlink to another area in the share. We
4792  probably need to check that the client is a Windows one before disallowing
4793  this as a UNIX client (one with UNIX extensions) can know the source is a
4794  symlink and make this decision intelligently. Found by an excellent bug
4795  report from <AndyLiebman@aol.com>.
4796 ****************************************************************************/
4797
4798 static BOOL rename_path_prefix_equal(const char *src, const char *dest)
4799 {
4800         const char *psrc = src;
4801         const char *pdst = dest;
4802         size_t slen;
4803
4804         if (psrc[0] == '.' && psrc[1] == '/') {
4805                 psrc += 2;
4806         }
4807         if (pdst[0] == '.' && pdst[1] == '/') {
4808                 pdst += 2;
4809         }
4810         if ((slen = strlen(psrc)) > strlen(pdst)) {
4811                 return False;
4812         }
4813         return ((memcmp(psrc, pdst, slen) == 0) && pdst[slen] == '/');
4814 }
4815
4816 /*
4817  * Do the notify calls from a rename
4818  */
4819
4820 static void notify_rename(connection_struct *conn, BOOL is_dir,
4821                           const char *oldpath, const char *newpath)
4822 {
4823         char *olddir, *newdir;
4824         const char *oldname, *newname;
4825         uint32 mask;
4826
4827         mask = is_dir ? FILE_NOTIFY_CHANGE_DIR_NAME
4828                 : FILE_NOTIFY_CHANGE_FILE_NAME;
4829
4830         if (!parent_dirname_talloc(NULL, oldpath, &olddir, &oldname)
4831             || !parent_dirname_talloc(NULL, newpath, &newdir, &newname)) {
4832                 TALLOC_FREE(olddir);
4833                 return;
4834         }
4835
4836         if (strcmp(olddir, newdir) == 0) {
4837                 notify_fname(conn, NOTIFY_ACTION_OLD_NAME, mask, oldpath);
4838                 notify_fname(conn, NOTIFY_ACTION_NEW_NAME, mask, newpath);
4839         }
4840         else {
4841                 notify_fname(conn, NOTIFY_ACTION_REMOVED, mask, oldpath);
4842                 notify_fname(conn, NOTIFY_ACTION_ADDED, mask, newpath);
4843         }
4844         TALLOC_FREE(olddir);
4845         TALLOC_FREE(newdir);
4846
4847         /* this is a strange one. w2k3 gives an additional event for
4848            CHANGE_ATTRIBUTES and CHANGE_CREATION on the new file when renaming
4849            files, but not directories */
4850         if (!is_dir) {
4851                 notify_fname(conn, NOTIFY_ACTION_MODIFIED,
4852                              FILE_NOTIFY_CHANGE_ATTRIBUTES
4853                              |FILE_NOTIFY_CHANGE_CREATION,
4854                              newpath);
4855         }
4856 }
4857
4858 /****************************************************************************
4859  Rename an open file - given an fsp.
4860 ****************************************************************************/
4861
4862 NTSTATUS rename_internals_fsp(connection_struct *conn, files_struct *fsp, pstring newname, uint32 attrs, BOOL replace_if_exists)
4863 {
4864         SMB_STRUCT_STAT sbuf, sbuf1;
4865         pstring newname_last_component;
4866         NTSTATUS status = NT_STATUS_OK;
4867         struct share_mode_lock *lck = NULL;
4868         BOOL dst_exists;
4869
4870         ZERO_STRUCT(sbuf);
4871
4872         status = unix_convert(conn, newname, False, newname_last_component, &sbuf);
4873
4874         /* If an error we expect this to be NT_STATUS_OBJECT_PATH_NOT_FOUND */
4875
4876         if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(NT_STATUS_OBJECT_PATH_NOT_FOUND, status)) {
4877                 return status;
4878         }
4879
4880         status = check_name(conn, newname);
4881         if (!NT_STATUS_IS_OK(status)) {
4882                 return status;
4883         }
4884
4885         /* Ensure newname contains a '/' */
4886         if(strrchr_m(newname,'/') == 0) {
4887                 pstring tmpstr;
4888
4889                 pstrcpy(tmpstr, "./");
4890                 pstrcat(tmpstr, newname);
4891                 pstrcpy(newname, tmpstr);
4892         }
4893
4894         /*
4895          * Check for special case with case preserving and not
4896          * case sensitive. If the old last component differs from the original
4897          * last component only by case, then we should allow
4898          * the rename (user is trying to change the case of the
4899          * filename).
4900          */
4901
4902         if((conn->case_sensitive == False) && (conn->case_preserve == True) &&
4903                         strequal(newname, fsp->fsp_name)) {
4904                 char *p;
4905                 pstring newname_modified_last_component;
4906
4907                 /*
4908                  * Get the last component of the modified name.
4909                  * Note that we guarantee that newname contains a '/'
4910                  * character above.
4911                  */
4912                 p = strrchr_m(newname,'/');
4913                 pstrcpy(newname_modified_last_component,p+1);
4914
4915                 if(strcsequal(newname_modified_last_component,
4916                               newname_last_component) == False) {
4917                         /*
4918                          * Replace the modified last component with
4919                          * the original.
4920                          */
4921                         pstrcpy(p+1, newname_last_component);
4922                 }
4923         }
4924
4925         /*
4926          * If the src and dest names are identical - including case,
4927          * don't do the rename, just return success.
4928          */
4929
4930         if (strcsequal(fsp->fsp_name, newname)) {
4931                 DEBUG(3,("rename_internals_fsp: identical names in rename %s - returning success\n",
4932                         newname));
4933                 return NT_STATUS_OK;
4934         }
4935
4936         /*
4937          * Have vfs_object_exist also fill sbuf1
4938          */
4939         dst_exists = vfs_object_exist(conn, newname, &sbuf1);
4940
4941         if(!replace_if_exists && dst_exists) {
4942                 DEBUG(3,("rename_internals_fsp: dest exists doing rename %s -> %s\n",
4943                         fsp->fsp_name,newname));
4944                 return NT_STATUS_OBJECT_NAME_COLLISION;
4945         }
4946
4947         if (dst_exists) {
4948                 struct file_id fileid = vfs_file_id_from_sbuf(conn, &sbuf1);
4949                 files_struct *dst_fsp = file_find_di_first(fileid);
4950                 if (dst_fsp) {
4951                         DEBUG(3, ("rename_internals_fsp: Target file open\n"));
4952                         return NT_STATUS_ACCESS_DENIED;
4953                 }
4954         }
4955
4956         /* Ensure we have a valid stat struct for the source. */
4957         if (fsp->fh->fd != -1) {
4958                 if (SMB_VFS_FSTAT(fsp,fsp->fh->fd,&sbuf) == -1) {
4959                         return map_nt_error_from_unix(errno);
4960                 }
4961         } else {
4962                 if (SMB_VFS_STAT(conn,fsp->fsp_name,&sbuf) == -1) {
4963                         return map_nt_error_from_unix(errno);
4964                 }
4965         }
4966
4967         status = can_rename(conn, fsp, attrs, &sbuf);
4968
4969         if (!NT_STATUS_IS_OK(status)) {
4970                 DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
4971                         nt_errstr(status), fsp->fsp_name,newname));
4972                 if (NT_STATUS_EQUAL(status,NT_STATUS_SHARING_VIOLATION))
4973                         status = NT_STATUS_ACCESS_DENIED;
4974                 return status;
4975         }
4976
4977         if (rename_path_prefix_equal(fsp->fsp_name, newname)) {
4978                 return NT_STATUS_ACCESS_DENIED;
4979         }
4980
4981         lck = get_share_mode_lock(NULL, fsp->file_id, NULL, NULL);
4982
4983         /*
4984          * We have the file open ourselves, so not being able to get the
4985          * corresponding share mode lock is a fatal error.
4986          */
4987
4988         SMB_ASSERT(lck != NULL);
4989
4990         if(SMB_VFS_RENAME(conn,fsp->fsp_name, newname) == 0) {
4991                 uint32 create_options = fsp->fh->private_options;
4992
4993                 DEBUG(3,("rename_internals_fsp: succeeded doing rename on %s -> %s\n",
4994                         fsp->fsp_name,newname));
4995
4996                 rename_open_files(conn, lck, newname);
4997
4998                 notify_rename(conn, fsp->is_directory, fsp->fsp_name, newname);
4999
5000                 /*
5001                  * A rename acts as a new file create w.r.t. allowing an initial delete
5002                  * on close, probably because in Windows there is a new handle to the
5003                  * new file. If initial delete on close was requested but not
5004                  * originally set, we need to set it here. This is probably not 100% correct,
5005                  * but will work for the CIFSFS client which in non-posix mode
5006                  * depends on these semantics. JRA.
5007                  */
5008
5009                 set_allow_initial_delete_on_close(lck, fsp, True);
5010
5011                 if (create_options & FILE_DELETE_ON_CLOSE) {
5012                         status = can_set_delete_on_close(fsp, True, 0);
5013
5014                         if (NT_STATUS_IS_OK(status)) {
5015                                 /* Note that here we set the *inital* delete on close flag,
5016                                  * not the regular one. The magic gets handled in close. */
5017                                 fsp->initial_delete_on_close = True;
5018                         }
5019                 }
5020                 TALLOC_FREE(lck);
5021                 return NT_STATUS_OK;
5022         }
5023
5024         TALLOC_FREE(lck);
5025
5026         if (errno == ENOTDIR || errno == EISDIR) {
5027                 status = NT_STATUS_OBJECT_NAME_COLLISION;
5028         } else {
5029                 status = map_nt_error_from_unix(errno);
5030         }
5031
5032         DEBUG(3,("rename_internals_fsp: Error %s rename %s -> %s\n",
5033                 nt_errstr(status), fsp->fsp_name,newname));
5034
5035         return status;
5036 }
5037
5038 /****************************************************************************
5039  The guts of the rename command, split out so it may be called by the NT SMB
5040  code.
5041 ****************************************************************************/
5042
5043 NTSTATUS rename_internals(connection_struct *conn, struct smb_request *req,
5044                                 pstring name,
5045                                 pstring newname,
5046                                 uint32 attrs,
5047                                 BOOL replace_if_exists,
5048                                 BOOL src_has_wild,
5049                                 BOOL dest_has_wild)
5050 {
5051         pstring directory;
5052         pstring mask;
5053         pstring last_component_src;
5054         pstring last_component_dest;
5055         char *p;
5056         int count=0;
5057         NTSTATUS status = NT_STATUS_OK;
5058         SMB_STRUCT_STAT sbuf1, sbuf2;
5059         struct smb_Dir *dir_hnd = NULL;
5060         const char *dname;
5061         long offset = 0;
5062         pstring destname;
5063
5064         *directory = *mask = 0;
5065
5066         ZERO_STRUCT(sbuf1);
5067         ZERO_STRUCT(sbuf2);
5068
5069         status = unix_convert(conn, name, src_has_wild, last_component_src, &sbuf1);
5070         if (!NT_STATUS_IS_OK(status)) {
5071                 return status;
5072         }
5073
5074         status = unix_convert(conn, newname, dest_has_wild, last_component_dest, &sbuf2);
5075         if (!NT_STATUS_IS_OK(status)) {
5076                 return status;
5077         }
5078
5079         /*
5080          * Split the old name into directory and last component
5081          * strings. Note that unix_convert may have stripped off a
5082          * leading ./ from both name and newname if the rename is
5083          * at the root of the share. We need to make sure either both
5084          * name and newname contain a / character or neither of them do
5085          * as this is checked in resolve_wildcards().
5086          */
5087
5088         p = strrchr_m(name,'/');
5089         if (!p) {
5090                 pstrcpy(directory,".");
5091                 pstrcpy(mask,name);
5092         } else {
5093                 *p = 0;
5094                 pstrcpy(directory,name);
5095                 pstrcpy(mask,p+1);
5096                 *p = '/'; /* Replace needed for exceptional test below. */
5097         }
5098
5099         /*
5100          * We should only check the mangled cache
5101          * here if unix_convert failed. This means
5102          * that the path in 'mask' doesn't exist
5103          * on the file system and so we need to look
5104          * for a possible mangle. This patch from
5105          * Tine Smukavec <valentin.smukavec@hermes.si>.
5106          */
5107
5108         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
5109                 mangle_check_cache( mask, sizeof(pstring)-1, conn->params );
5110         }
5111
5112         if (!src_has_wild) {
5113                 files_struct *fsp;
5114
5115                 /*
5116                  * No wildcards - just process the one file.
5117                  */
5118                 BOOL is_short_name = mangle_is_8_3(name, True, conn->params);
5119
5120                 /* Add a terminating '/' to the directory name. */
5121                 pstrcat(directory,"/");
5122                 pstrcat(directory,mask);
5123
5124                 /* Ensure newname contains a '/' also */
5125                 if(strrchr_m(newname,'/') == 0) {
5126                         pstring tmpstr;
5127
5128                         pstrcpy(tmpstr, "./");
5129                         pstrcat(tmpstr, newname);
5130                         pstrcpy(newname, tmpstr);
5131                 }
5132
5133                 DEBUG(3, ("rename_internals: case_sensitive = %d, "
5134                           "case_preserve = %d, short case preserve = %d, "
5135                           "directory = %s, newname = %s, "
5136                           "last_component_dest = %s, is_8_3 = %d\n",
5137                           conn->case_sensitive, conn->case_preserve,
5138                           conn->short_case_preserve, directory,
5139                           newname, last_component_dest, is_short_name));
5140
5141                 /* The dest name still may have wildcards. */
5142                 if (dest_has_wild) {
5143                         if (!resolve_wildcards(directory,newname)) {
5144                                 DEBUG(6, ("rename_internals: resolve_wildcards %s %s failed\n",
5145                                           directory,newname));
5146                                 return NT_STATUS_NO_MEMORY;
5147                         }
5148                 }
5149
5150                 ZERO_STRUCT(sbuf1);
5151                 SMB_VFS_STAT(conn, directory, &sbuf1);
5152
5153                 status = S_ISDIR(sbuf1.st_mode) ?
5154                         open_directory(conn, req, directory, &sbuf1,
5155                                        DELETE_ACCESS,
5156                                        FILE_SHARE_READ|FILE_SHARE_WRITE,
5157                                        FILE_OPEN, 0, 0, NULL,
5158                                        &fsp)
5159                         : open_file_ntcreate(conn, req, directory, &sbuf1,
5160                                              DELETE_ACCESS,
5161                                              FILE_SHARE_READ|FILE_SHARE_WRITE,
5162                                              FILE_OPEN, 0, 0, 0, NULL,
5163                                              &fsp);
5164
5165                 if (!NT_STATUS_IS_OK(status)) {
5166                         DEBUG(3, ("Could not open rename source %s: %s\n",
5167                                   directory, nt_errstr(status)));
5168                         return status;
5169                 }
5170
5171                 status = rename_internals_fsp(conn, fsp, newname, attrs,
5172                                               replace_if_exists);
5173
5174                 close_file(fsp, NORMAL_CLOSE);
5175
5176                 DEBUG(3, ("rename_internals: Error %s rename %s -> %s\n",
5177                           nt_errstr(status), directory,newname));
5178
5179                 return status;
5180         }
5181
5182         /*
5183          * Wildcards - process each file that matches.
5184          */
5185         if (strequal(mask,"????????.???")) {
5186                 pstrcpy(mask,"*");
5187         }
5188
5189         status = check_name(conn, directory);
5190         if (!NT_STATUS_IS_OK(status)) {
5191                 return status;
5192         }
5193
5194         dir_hnd = OpenDir(conn, directory, mask, attrs);
5195         if (dir_hnd == NULL) {
5196                 return map_nt_error_from_unix(errno);
5197         }
5198
5199         status = NT_STATUS_NO_SUCH_FILE;
5200         /*
5201          * Was status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
5202          * - gentest fix. JRA
5203          */
5204
5205         while ((dname = ReadDirName(dir_hnd, &offset))) {
5206                 files_struct *fsp;
5207                 pstring fname;
5208                 BOOL sysdir_entry = False;
5209
5210                 pstrcpy(fname,dname);
5211
5212                 /* Quick check for "." and ".." */
5213                 if (fname[0] == '.') {
5214                         if (!fname[1] || (fname[1] == '.' && !fname[2])) {
5215                                 if (attrs & aDIR) {
5216                                         sysdir_entry = True;
5217                                 } else {
5218                                         continue;
5219                                 }
5220                         }
5221                 }
5222
5223                 if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
5224                         continue;
5225                 }
5226
5227                 if(!mask_match(fname, mask, conn->case_sensitive)) {
5228                         continue;
5229                 }
5230
5231                 if (sysdir_entry) {
5232                         status = NT_STATUS_OBJECT_NAME_INVALID;
5233                         break;
5234                 }
5235
5236                 slprintf(fname, sizeof(fname)-1, "%s/%s", directory, dname);
5237
5238                 pstrcpy(destname,newname);
5239
5240                 if (!resolve_wildcards(fname,destname)) {
5241                         DEBUG(6, ("resolve_wildcards %s %s failed\n",
5242                                   fname, destname));
5243                         continue;
5244                 }
5245
5246                 ZERO_STRUCT(sbuf1);
5247                 SMB_VFS_STAT(conn, fname, &sbuf1);
5248
5249                 status = S_ISDIR(sbuf1.st_mode) ?
5250                         open_directory(conn, req, fname, &sbuf1,
5251                                        DELETE_ACCESS,
5252                                        FILE_SHARE_READ|FILE_SHARE_WRITE,
5253                                        FILE_OPEN, 0, 0, NULL,
5254                                        &fsp)
5255                         : open_file_ntcreate(conn, req, fname, &sbuf1,
5256                                              DELETE_ACCESS,
5257                                              FILE_SHARE_READ|FILE_SHARE_WRITE,
5258                                              FILE_OPEN, 0, 0, 0, NULL,
5259                                              &fsp);
5260
5261                 if (!NT_STATUS_IS_OK(status)) {
5262                         DEBUG(3,("rename_internals: open_file_ntcreate "
5263                                  "returned %s rename %s -> %s\n",
5264                                  nt_errstr(status), directory, newname));
5265                         break;
5266                 }
5267
5268                 status = rename_internals_fsp(conn, fsp, destname, attrs,
5269                                               replace_if_exists);
5270
5271                 close_file(fsp, NORMAL_CLOSE);
5272
5273                 if (!NT_STATUS_IS_OK(status)) {
5274                         DEBUG(3, ("rename_internals_fsp returned %s for "
5275                                   "rename %s -> %s\n", nt_errstr(status),
5276                                   directory, newname));
5277                         break;
5278                 }
5279
5280                 count++;
5281
5282                 DEBUG(3,("rename_internals: doing rename on %s -> "
5283                          "%s\n",fname,destname));
5284         }
5285         CloseDir(dir_hnd);
5286
5287         if (count == 0 && NT_STATUS_IS_OK(status)) {
5288                 status = map_nt_error_from_unix(errno);
5289         }
5290
5291         return status;
5292 }
5293
5294 /****************************************************************************
5295  Reply to a mv.
5296 ****************************************************************************/
5297
5298 void reply_mv(connection_struct *conn, struct smb_request *req)
5299 {
5300         pstring name;
5301         pstring newname;
5302         char *p;
5303         uint32 attrs;
5304         NTSTATUS status;
5305         BOOL src_has_wcard = False;
5306         BOOL dest_has_wcard = False;
5307
5308         START_PROFILE(SMBmv);
5309
5310         if (req->wct < 1) {
5311                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5312                 END_PROFILE(SMBmv);
5313                 return;
5314         }
5315
5316         attrs = SVAL(req->inbuf,smb_vwv0);
5317
5318         p = smb_buf(req->inbuf) + 1;
5319         p += srvstr_get_path_wcard((char *)req->inbuf, req->flags2, name, p,
5320                                    sizeof(name), 0, STR_TERMINATE, &status,
5321                                    &src_has_wcard);
5322         if (!NT_STATUS_IS_OK(status)) {
5323                 reply_nterror(req, status);
5324                 END_PROFILE(SMBmv);
5325                 return;
5326         }
5327         p++;
5328         p += srvstr_get_path_wcard((char *)req->inbuf, req->flags2, newname, p,
5329                                    sizeof(newname), 0, STR_TERMINATE, &status,
5330                                    &dest_has_wcard);
5331         if (!NT_STATUS_IS_OK(status)) {
5332                 reply_nterror(req, status);
5333                 END_PROFILE(SMBmv);
5334                 return;
5335         }
5336
5337         status = resolve_dfspath_wcard(conn,
5338                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
5339                                        name, &src_has_wcard);
5340         if (!NT_STATUS_IS_OK(status)) {
5341                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5342                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5343                                         ERRSRV, ERRbadpath);
5344                         END_PROFILE(SMBmv);
5345                         return;
5346                 }
5347                 reply_nterror(req, status);
5348                 END_PROFILE(SMBmv);
5349                 return;
5350         }
5351
5352         status = resolve_dfspath_wcard(conn,
5353                                        req->flags2 & FLAGS2_DFS_PATHNAMES,
5354                                        newname, &dest_has_wcard);
5355         if (!NT_STATUS_IS_OK(status)) {
5356                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5357                         reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
5358                                         ERRSRV, ERRbadpath);
5359                         END_PROFILE(SMBmv);
5360                         return;
5361                 }
5362                 reply_nterror(req, status);
5363                 END_PROFILE(SMBmv);
5364                 return;
5365         }
5366
5367         DEBUG(3,("reply_mv : %s -> %s\n",name,newname));
5368
5369         status = rename_internals(conn, req, name, newname, attrs, False,
5370                                   src_has_wcard, dest_has_wcard);
5371         if (!NT_STATUS_IS_OK(status)) {
5372                 if (open_was_deferred(req->mid)) {
5373                         /* We have re-scheduled this call. */
5374                         END_PROFILE(SMBmv);
5375                         return;
5376                 }
5377                 reply_nterror(req, status);
5378                 END_PROFILE(SMBmv);
5379                 return;
5380         }
5381
5382         reply_outbuf(req, 0, 0);
5383
5384         END_PROFILE(SMBmv);
5385         return;
5386 }
5387
5388 /*******************************************************************
5389  Copy a file as part of a reply_copy.
5390 ******************************************************************/
5391
5392 /*
5393  * TODO: check error codes on all callers
5394  */
5395
5396 NTSTATUS copy_file(connection_struct *conn,
5397                         char *src,
5398                         char *dest1,
5399                         int ofun,
5400                         int count,
5401                         BOOL target_is_directory)
5402 {
5403         SMB_STRUCT_STAT src_sbuf, sbuf2;
5404         SMB_OFF_T ret=-1;
5405         files_struct *fsp1,*fsp2;
5406         pstring dest;
5407         uint32 dosattrs;
5408         uint32 new_create_disposition;
5409         NTSTATUS status;
5410
5411         pstrcpy(dest,dest1);
5412         if (target_is_directory) {
5413                 char *p = strrchr_m(src,'/');
5414                 if (p) {
5415                         p++;
5416                 } else {
5417                         p = src;
5418                 }
5419                 pstrcat(dest,"/");
5420                 pstrcat(dest,p);
5421         }
5422
5423         if (!vfs_file_exist(conn,src,&src_sbuf)) {
5424                 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
5425         }
5426
5427         if (!target_is_directory && count) {
5428                 new_create_disposition = FILE_OPEN;
5429         } else {
5430                 if (!map_open_params_to_ntcreate(dest1,0,ofun,
5431                                 NULL, NULL, &new_create_disposition, NULL)) {
5432                         return NT_STATUS_INVALID_PARAMETER;
5433                 }
5434         }
5435
5436         status = open_file_ntcreate(conn, NULL, src, &src_sbuf,
5437                         FILE_GENERIC_READ,
5438                         FILE_SHARE_READ|FILE_SHARE_WRITE,
5439                         FILE_OPEN,
5440                         0,
5441                         FILE_ATTRIBUTE_NORMAL,
5442                         INTERNAL_OPEN_ONLY,
5443                         NULL, &fsp1);
5444
5445         if (!NT_STATUS_IS_OK(status)) {
5446                 return status;
5447         }
5448
5449         dosattrs = dos_mode(conn, src, &src_sbuf);
5450         if (SMB_VFS_STAT(conn,dest,&sbuf2) == -1) {
5451                 ZERO_STRUCTP(&sbuf2);
5452         }
5453
5454         status = open_file_ntcreate(conn, NULL, dest, &sbuf2,
5455                         FILE_GENERIC_WRITE,
5456                         FILE_SHARE_READ|FILE_SHARE_WRITE,
5457                         new_create_disposition,
5458                         0,
5459                         dosattrs,
5460                         INTERNAL_OPEN_ONLY,
5461                         NULL, &fsp2);
5462
5463         if (!NT_STATUS_IS_OK(status)) {
5464                 close_file(fsp1,ERROR_CLOSE);
5465                 return status;
5466         }
5467
5468         if ((ofun&3) == 1) {
5469                 if(SMB_VFS_LSEEK(fsp2,fsp2->fh->fd,0,SEEK_END) == -1) {
5470                         DEBUG(0,("copy_file: error - vfs lseek returned error %s\n", strerror(errno) ));
5471                         /*
5472                          * Stop the copy from occurring.
5473                          */
5474                         ret = -1;
5475                         src_sbuf.st_size = 0;
5476                 }
5477         }
5478
5479         if (src_sbuf.st_size) {
5480                 ret = vfs_transfer_file(fsp1, fsp2, src_sbuf.st_size);
5481         }
5482
5483         close_file(fsp1,NORMAL_CLOSE);
5484
5485         /* Ensure the modtime is set correctly on the destination file. */
5486         fsp_set_pending_modtime( fsp2, get_mtimespec(&src_sbuf));
5487
5488         /*
5489          * As we are opening fsp1 read-only we only expect
5490          * an error on close on fsp2 if we are out of space.
5491          * Thus we don't look at the error return from the
5492          * close of fsp1.
5493          */
5494         status = close_file(fsp2,NORMAL_CLOSE);
5495
5496         if (!NT_STATUS_IS_OK(status)) {
5497                 return status;
5498         }
5499
5500         if (ret != (SMB_OFF_T)src_sbuf.st_size) {
5501                 return NT_STATUS_DISK_FULL;
5502         }
5503
5504         return NT_STATUS_OK;
5505 }
5506
5507 /****************************************************************************
5508  Reply to a file copy.
5509 ****************************************************************************/
5510
5511 int reply_copy(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
5512 {
5513         int outsize = 0;
5514         pstring name;
5515         pstring directory;
5516         pstring mask,newname;
5517         char *p;
5518         int count=0;
5519         int error = ERRnoaccess;
5520         int err = 0;
5521         int tid2 = SVAL(inbuf,smb_vwv0);
5522         int ofun = SVAL(inbuf,smb_vwv1);
5523         int flags = SVAL(inbuf,smb_vwv2);
5524         BOOL target_is_directory=False;
5525         BOOL source_has_wild = False;
5526         BOOL dest_has_wild = False;
5527         SMB_STRUCT_STAT sbuf1, sbuf2;
5528         NTSTATUS status;
5529         START_PROFILE(SMBcopy);
5530
5531         *directory = *mask = 0;
5532
5533         p = smb_buf(inbuf);
5534         p += srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), name, p,
5535                                    sizeof(name), 0, STR_TERMINATE, &status,
5536                                    &source_has_wild);
5537         if (!NT_STATUS_IS_OK(status)) {
5538                 END_PROFILE(SMBcopy);
5539                 return ERROR_NT(status);
5540         }
5541         p += srvstr_get_path_wcard(inbuf, SVAL(inbuf,smb_flg2), newname, p,
5542                                    sizeof(newname), 0, STR_TERMINATE, &status,
5543                                    &dest_has_wild);
5544         if (!NT_STATUS_IS_OK(status)) {
5545                 END_PROFILE(SMBcopy);
5546                 return ERROR_NT(status);
5547         }
5548
5549         DEBUG(3,("reply_copy : %s -> %s\n",name,newname));
5550
5551         if (tid2 != conn->cnum) {
5552                 /* can't currently handle inter share copies XXXX */
5553                 DEBUG(3,("Rejecting inter-share copy\n"));
5554                 END_PROFILE(SMBcopy);
5555                 return ERROR_DOS(ERRSRV,ERRinvdevice);
5556         }
5557
5558         status = resolve_dfspath_wcard(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, name, &source_has_wild);
5559         if (!NT_STATUS_IS_OK(status)) {
5560                 END_PROFILE(SMBcopy);
5561                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5562                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
5563                 }
5564                 return ERROR_NT(status);
5565         }
5566
5567         status = resolve_dfspath_wcard(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, newname, &dest_has_wild);
5568         if (!NT_STATUS_IS_OK(status)) {
5569                 END_PROFILE(SMBcopy);
5570                 if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
5571                         return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
5572                 }
5573                 return ERROR_NT(status);
5574         }
5575
5576         status = unix_convert(conn, name, source_has_wild, NULL, &sbuf1);
5577         if (!NT_STATUS_IS_OK(status)) {
5578                 END_PROFILE(SMBcopy);
5579                 return ERROR_NT(status);
5580         }
5581
5582         status = unix_convert(conn, newname, dest_has_wild, NULL, &sbuf2);
5583         if (!NT_STATUS_IS_OK(status)) {
5584                 END_PROFILE(SMBcopy);
5585                 return ERROR_NT(status);
5586         }
5587
5588         target_is_directory = VALID_STAT_OF_DIR(sbuf2);
5589
5590         if ((flags&1) && target_is_directory) {
5591                 END_PROFILE(SMBcopy);
5592                 return ERROR_DOS(ERRDOS,ERRbadfile);
5593         }
5594
5595         if ((flags&2) && !target_is_directory) {
5596                 END_PROFILE(SMBcopy);
5597                 return ERROR_DOS(ERRDOS,ERRbadpath);
5598         }
5599
5600         if ((flags&(1<<5)) && VALID_STAT_OF_DIR(sbuf1)) {
5601                 /* wants a tree copy! XXXX */
5602                 DEBUG(3,("Rejecting tree copy\n"));
5603                 END_PROFILE(SMBcopy);
5604                 return ERROR_DOS(ERRSRV,ERRerror);
5605         }
5606
5607         p = strrchr_m(name,'/');
5608         if (!p) {
5609                 pstrcpy(directory,"./");
5610                 pstrcpy(mask,name);
5611         } else {
5612                 *p = 0;
5613                 pstrcpy(directory,name);
5614                 pstrcpy(mask,p+1);
5615         }
5616
5617         /*
5618          * We should only check the mangled cache
5619          * here if unix_convert failed. This means
5620          * that the path in 'mask' doesn't exist
5621          * on the file system and so we need to look
5622          * for a possible mangle. This patch from
5623          * Tine Smukavec <valentin.smukavec@hermes.si>.
5624          */
5625
5626         if (!VALID_STAT(sbuf1) && mangle_is_mangled(mask, conn->params)) {
5627                 mangle_check_cache( mask, sizeof(pstring)-1, conn->params );
5628         }
5629
5630         if (!source_has_wild) {
5631                 pstrcat(directory,"/");
5632                 pstrcat(directory,mask);
5633                 if (dest_has_wild) {
5634                         if (!resolve_wildcards(directory,newname)) {
5635                                 END_PROFILE(SMBcopy);
5636                                 return ERROR_NT(NT_STATUS_NO_MEMORY);
5637                         }
5638                 }
5639
5640                 status = check_name(conn, directory);
5641                 if (!NT_STATUS_IS_OK(status)) {
5642                         return ERROR_NT(status);
5643                 }
5644
5645                 status = check_name(conn, newname);
5646                 if (!NT_STATUS_IS_OK(status)) {
5647                         return ERROR_NT(status);
5648                 }
5649
5650                 status = copy_file(conn,directory,newname,ofun,
5651                                         count,target_is_directory);
5652
5653                 if(!NT_STATUS_IS_OK(status)) {
5654                         END_PROFILE(SMBcopy);
5655                         return ERROR_NT(status);
5656                 } else {
5657                         count++;
5658                 }
5659         } else {
5660                 struct smb_Dir *dir_hnd = NULL;
5661                 const char *dname;
5662                 long offset = 0;
5663                 pstring destname;
5664
5665                 if (strequal(mask,"????????.???"))
5666                         pstrcpy(mask,"*");
5667
5668                 status = check_name(conn, directory);
5669                 if (!NT_STATUS_IS_OK(status)) {
5670                         return ERROR_NT(status);
5671                 }
5672
5673                 dir_hnd = OpenDir(conn, directory, mask, 0);
5674                 if (dir_hnd == NULL) {
5675                         status = map_nt_error_from_unix(errno);
5676                         return ERROR_NT(status);
5677                 }
5678
5679                 error = ERRbadfile;
5680
5681                 while ((dname = ReadDirName(dir_hnd, &offset))) {
5682                         pstring fname;
5683                         pstrcpy(fname,dname);
5684
5685                         if (!is_visible_file(conn, directory, dname, &sbuf1, False)) {
5686                                 continue;
5687                         }
5688
5689                         if(!mask_match(fname, mask, conn->case_sensitive)) {
5690                                 continue;
5691                         }
5692
5693                         error = ERRnoaccess;
5694                         slprintf(fname,sizeof(fname)-1, "%s/%s",directory,dname);
5695                         pstrcpy(destname,newname);
5696                         if (!resolve_wildcards(fname,destname)) {
5697                                 continue;
5698                         }
5699
5700                         status = check_name(conn, fname);
5701                         if (!NT_STATUS_IS_OK(status)) {
5702                                 return ERROR_NT(status);
5703                         }
5704
5705                         status = check_name(conn, destname);
5706                         if (!NT_STATUS_IS_OK(status)) {
5707                                 return ERROR_NT(status);
5708                         }
5709
5710                         DEBUG(3,("reply_copy : doing copy on %s -> %s\n",fname, destname));
5711
5712                         status = copy_file(conn,fname,destname,ofun,
5713                                         count,target_is_directory);
5714                         if (NT_STATUS_IS_OK(status)) {
5715                                 count++;
5716                         }
5717                 }
5718                 CloseDir(dir_hnd);
5719         }
5720
5721         if (count == 0) {
5722                 if(err) {
5723                         /* Error on close... */
5724                         errno = err;
5725                         END_PROFILE(SMBcopy);
5726                         return(UNIXERROR(ERRHRD,ERRgeneral));
5727                 }
5728
5729                 END_PROFILE(SMBcopy);
5730                 return ERROR_DOS(ERRDOS,error);
5731         }
5732
5733         outsize = set_message(inbuf,outbuf,1,0,True);
5734         SSVAL(outbuf,smb_vwv0,count);
5735
5736         END_PROFILE(SMBcopy);
5737         return(outsize);
5738 }
5739
5740 #undef DBGC_CLASS
5741 #define DBGC_CLASS DBGC_LOCKING
5742
5743 /****************************************************************************
5744  Get a lock pid, dealing with large count requests.
5745 ****************************************************************************/
5746
5747 uint32 get_lock_pid( char *data, int data_offset, BOOL large_file_format)
5748 {
5749         if(!large_file_format)
5750                 return (uint32)SVAL(data,SMB_LPID_OFFSET(data_offset));
5751         else
5752                 return (uint32)SVAL(data,SMB_LARGE_LPID_OFFSET(data_offset));
5753 }
5754
5755 /****************************************************************************
5756  Get a lock count, dealing with large count requests.
5757 ****************************************************************************/
5758
5759 SMB_BIG_UINT get_lock_count( char *data, int data_offset, BOOL large_file_format)
5760 {
5761         SMB_BIG_UINT count = 0;
5762
5763         if(!large_file_format) {
5764                 count = (SMB_BIG_UINT)IVAL(data,SMB_LKLEN_OFFSET(data_offset));
5765         } else {
5766
5767 #if defined(HAVE_LONGLONG)
5768                 count = (((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset))) << 32) |
5769                         ((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)));
5770 #else /* HAVE_LONGLONG */
5771
5772                 /*
5773                  * NT4.x seems to be broken in that it sends large file (64 bit)
5774                  * lockingX calls even if the CAP_LARGE_FILES was *not*
5775                  * negotiated. For boxes without large unsigned ints truncate the
5776                  * lock count by dropping the top 32 bits.
5777                  */
5778
5779                 if(IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)) != 0) {
5780                         DEBUG(3,("get_lock_count: truncating lock count (high)0x%x (low)0x%x to just low count.\n",
5781                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset)),
5782                                 (unsigned int)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset)) ));
5783                                 SIVAL(data,SMB_LARGE_LKLEN_OFFSET_HIGH(data_offset),0);
5784                 }
5785
5786                 count = (SMB_BIG_UINT)IVAL(data,SMB_LARGE_LKLEN_OFFSET_LOW(data_offset));
5787 #endif /* HAVE_LONGLONG */
5788         }
5789
5790         return count;
5791 }
5792
5793 #if !defined(HAVE_LONGLONG)
5794 /****************************************************************************
5795  Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-).
5796 ****************************************************************************/
5797
5798 static uint32 map_lock_offset(uint32 high, uint32 low)
5799 {
5800         unsigned int i;
5801         uint32 mask = 0;
5802         uint32 highcopy = high;
5803
5804         /*
5805          * Try and find out how many significant bits there are in high.
5806          */
5807
5808         for(i = 0; highcopy; i++)
5809                 highcopy >>= 1;
5810
5811         /*
5812          * We use 31 bits not 32 here as POSIX
5813          * lock offsets may not be negative.
5814          */
5815
5816         mask = (~0) << (31 - i);
5817
5818         if(low & mask)
5819                 return 0; /* Fail. */
5820
5821         high <<= (31 - i);
5822
5823         return (high|low);
5824 }
5825 #endif /* !defined(HAVE_LONGLONG) */
5826
5827 /****************************************************************************
5828  Get a lock offset, dealing with large offset requests.
5829 ****************************************************************************/
5830
5831 SMB_BIG_UINT get_lock_offset( char *data, int data_offset, BOOL large_file_format, BOOL *err)
5832 {
5833         SMB_BIG_UINT offset = 0;
5834
5835         *err = False;
5836
5837         if(!large_file_format) {
5838                 offset = (SMB_BIG_UINT)IVAL(data,SMB_LKOFF_OFFSET(data_offset));
5839         } else {
5840
5841 #if defined(HAVE_LONGLONG)
5842                 offset = (((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset))) << 32) |
5843                                 ((SMB_BIG_UINT) IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset)));
5844 #else /* HAVE_LONGLONG */
5845
5846                 /*
5847                  * NT4.x seems to be broken in that it sends large file (64 bit)
5848                  * lockingX calls even if the CAP_LARGE_FILES was *not*
5849                  * negotiated. For boxes without large unsigned ints mangle the
5850                  * lock offset by mapping the top 32 bits onto the lower 32.
5851                  */
5852
5853                 if(IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset)) != 0) {
5854                         uint32 low = IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
5855                         uint32 high = IVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset));
5856                         uint32 new_low = 0;
5857
5858                         if((new_low = map_lock_offset(high, low)) == 0) {
5859                                 *err = True;
5860                                 return (SMB_BIG_UINT)-1;
5861                         }
5862
5863                         DEBUG(3,("get_lock_offset: truncating lock offset (high)0x%x (low)0x%x to offset 0x%x.\n",
5864                                 (unsigned int)high, (unsigned int)low, (unsigned int)new_low ));
5865                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_HIGH(data_offset),0);
5866                         SIVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset),new_low);
5867                 }
5868
5869                 offset = (SMB_BIG_UINT)IVAL(data,SMB_LARGE_LKOFF_OFFSET_LOW(data_offset));
5870 #endif /* HAVE_LONGLONG */
5871         }
5872
5873         return offset;
5874 }
5875
5876 /****************************************************************************
5877  Reply to a lockingX request.
5878 ****************************************************************************/
5879
5880 void reply_lockingX(connection_struct *conn, struct smb_request *req)
5881 {
5882         files_struct *fsp;
5883         unsigned char locktype;
5884         unsigned char oplocklevel;
5885         uint16 num_ulocks;
5886         uint16 num_locks;
5887         SMB_BIG_UINT count = 0, offset = 0;
5888         uint32 lock_pid;
5889         int32 lock_timeout;
5890         int i;
5891         char *data;
5892         BOOL large_file_format;
5893         BOOL err;
5894         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
5895
5896         START_PROFILE(SMBlockingX);
5897
5898         if (req->wct < 8) {
5899                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
5900                 END_PROFILE(SMBlockingX);
5901                 return;
5902         }
5903
5904         fsp = file_fsp(SVAL(req->inbuf,smb_vwv2));
5905         locktype = CVAL(req->inbuf,smb_vwv3);
5906         oplocklevel = CVAL(req->inbuf,smb_vwv3+1);
5907         num_ulocks = SVAL(req->inbuf,smb_vwv6);
5908         num_locks = SVAL(req->inbuf,smb_vwv7);
5909         lock_timeout = IVAL(req->inbuf,smb_vwv4);
5910         large_file_format = (locktype & LOCKING_ANDX_LARGE_FILES)?True:False;
5911
5912         if (!check_fsp(conn, req, fsp, &current_user)) {
5913                 END_PROFILE(SMBlockingX);
5914                 return;
5915         }
5916
5917         data = smb_buf(req->inbuf);
5918
5919         if (locktype & LOCKING_ANDX_CHANGE_LOCKTYPE) {
5920                 /* we don't support these - and CANCEL_LOCK makes w2k
5921                    and XP reboot so I don't really want to be
5922                    compatible! (tridge) */
5923                 reply_nterror(req, NT_STATUS_DOS(ERRDOS, ERRnoatomiclocks));
5924                 END_PROFILE(SMBlockingX);
5925                 return;
5926         }
5927
5928         /* Check if this is an oplock break on a file
5929            we have granted an oplock on.
5930         */
5931         if ((locktype & LOCKING_ANDX_OPLOCK_RELEASE)) {
5932                 /* Client can insist on breaking to none. */
5933                 BOOL break_to_none = (oplocklevel == 0);
5934                 BOOL result;
5935
5936                 DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
5937                          "for fnum = %d\n", (unsigned int)oplocklevel,
5938                          fsp->fnum ));
5939
5940                 /*
5941                  * Make sure we have granted an exclusive or batch oplock on
5942                  * this file.
5943                  */
5944
5945                 if (fsp->oplock_type == 0) {
5946
5947                         /* The Samba4 nbench simulator doesn't understand
5948                            the difference between break to level2 and break
5949                            to none from level2 - it sends oplock break
5950                            replies in both cases. Don't keep logging an error
5951                            message here - just ignore it. JRA. */
5952
5953                         DEBUG(5,("reply_lockingX: Error : oplock break from "
5954                                  "client for fnum = %d (oplock=%d) and no "
5955                                  "oplock granted on this file (%s).\n",
5956                                  fsp->fnum, fsp->oplock_type, fsp->fsp_name));
5957
5958                         /* if this is a pure oplock break request then don't
5959                          * send a reply */
5960                         if (num_locks == 0 && num_ulocks == 0) {
5961                                 END_PROFILE(SMBlockingX);
5962                                 reply_post_legacy(req, -1);
5963                                 return;
5964                         } else {
5965                                 END_PROFILE(SMBlockingX);
5966                                 reply_doserror(req, ERRDOS, ERRlock);
5967                                 return;
5968                         }
5969                 }
5970
5971                 if ((fsp->sent_oplock_break == BREAK_TO_NONE_SENT) ||
5972                     (break_to_none)) {
5973                         result = remove_oplock(fsp);
5974                 } else {
5975                         result = downgrade_oplock(fsp);
5976                 }
5977
5978                 if (!result) {
5979                         DEBUG(0, ("reply_lockingX: error in removing "
5980                                   "oplock on file %s\n", fsp->fsp_name));
5981                         /* Hmmm. Is this panic justified? */
5982                         smb_panic("internal tdb error");
5983                 }
5984
5985                 reply_to_oplock_break_requests(fsp);
5986
5987                 /* if this is a pure oplock break request then don't send a
5988                  * reply */
5989                 if (num_locks == 0 && num_ulocks == 0) {
5990                         /* Sanity check - ensure a pure oplock break is not a
5991                            chained request. */
5992                         if(CVAL(req->inbuf,smb_vwv0) != 0xff)
5993                                 DEBUG(0,("reply_lockingX: Error : pure oplock "
5994                                          "break is a chained %d request !\n",
5995                                          (unsigned int)CVAL(req->inbuf,
5996                                                             smb_vwv0) ));
5997                         END_PROFILE(SMBlockingX);
5998                         return;
5999                 }
6000         }
6001
6002         /*
6003          * We do this check *after* we have checked this is not a oplock break
6004          * response message. JRA.
6005          */
6006
6007         release_level_2_oplocks_on_change(fsp);
6008
6009         if (smb_buflen(req->inbuf) <
6010             (num_ulocks + num_locks) * (large_file_format ? 20 : 10)) {
6011                 reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
6012                 END_PROFILE(SMBlockingX);
6013                 return;
6014         }
6015
6016         /* Data now points at the beginning of the list
6017            of smb_unlkrng structs */
6018         for(i = 0; i < (int)num_ulocks; i++) {
6019                 lock_pid = get_lock_pid( data, i, large_file_format);
6020                 count = get_lock_count( data, i, large_file_format);
6021                 offset = get_lock_offset( data, i, large_file_format, &err);
6022
6023                 /*
6024                  * There is no error code marked "stupid client bug".... :-).
6025                  */
6026                 if(err) {
6027                         END_PROFILE(SMBlockingX);
6028                         reply_doserror(req, ERRDOS, ERRnoaccess);
6029                         return;
6030                 }
6031
6032                 DEBUG(10,("reply_lockingX: unlock start=%.0f, len=%.0f for "
6033                           "pid %u, file %s\n", (double)offset, (double)count,
6034                           (unsigned int)lock_pid, fsp->fsp_name ));
6035
6036                 status = do_unlock(smbd_messaging_context(),
6037                                 fsp,
6038                                 lock_pid,
6039                                 count,
6040                                 offset,
6041                                 WINDOWS_LOCK);
6042
6043                 if (NT_STATUS_V(status)) {
6044                         END_PROFILE(SMBlockingX);
6045                         reply_nterror(req, status);
6046                         return;
6047                 }
6048         }
6049
6050         /* Setup the timeout in seconds. */
6051
6052         if (!lp_blocking_locks(SNUM(conn))) {
6053                 lock_timeout = 0;
6054         }
6055
6056         /* Now do any requested locks */
6057         data += ((large_file_format ? 20 : 10)*num_ulocks);
6058
6059         /* Data now points at the beginning of the list
6060            of smb_lkrng structs */
6061
6062         for(i = 0; i < (int)num_locks; i++) {
6063                 enum brl_type lock_type = ((locktype & LOCKING_ANDX_SHARED_LOCK) ?
6064                                 READ_LOCK:WRITE_LOCK);
6065                 lock_pid = get_lock_pid( data, i, large_file_format);
6066                 count = get_lock_count( data, i, large_file_format);
6067                 offset = get_lock_offset( data, i, large_file_format, &err);
6068
6069                 /*
6070                  * There is no error code marked "stupid client bug".... :-).
6071                  */
6072                 if(err) {
6073                         END_PROFILE(SMBlockingX);
6074                         reply_doserror(req, ERRDOS, ERRnoaccess);
6075                         return;
6076                 }
6077
6078                 DEBUG(10,("reply_lockingX: lock start=%.0f, len=%.0f for pid "
6079                           "%u, file %s timeout = %d\n", (double)offset,
6080                           (double)count, (unsigned int)lock_pid,
6081                           fsp->fsp_name, (int)lock_timeout ));
6082
6083                 if (locktype & LOCKING_ANDX_CANCEL_LOCK) {
6084                         if (lp_blocking_locks(SNUM(conn))) {
6085
6086                                 /* Schedule a message to ourselves to
6087                                    remove the blocking lock record and
6088                                    return the right error. */
6089
6090                                 if (!blocking_lock_cancel(fsp,
6091                                                 lock_pid,
6092                                                 offset,
6093                                                 count,
6094                                                 WINDOWS_LOCK,
6095                                                 locktype,
6096                                                 NT_STATUS_FILE_LOCK_CONFLICT)) {
6097                                         END_PROFILE(SMBlockingX);
6098                                         reply_nterror(
6099                                                 req,
6100                                                 NT_STATUS_DOS(
6101                                                         ERRDOS,
6102                                                         ERRcancelviolation));
6103                                         return;
6104                                 }
6105                         }
6106                         /* Remove a matching pending lock. */
6107                         status = do_lock_cancel(fsp,
6108                                                 lock_pid,
6109                                                 count,
6110                                                 offset,
6111                                                 WINDOWS_LOCK);
6112                 } else {
6113                         BOOL blocking_lock = lock_timeout ? True : False;
6114                         BOOL defer_lock = False;
6115                         struct byte_range_lock *br_lck;
6116                         uint32 block_smbpid;
6117
6118                         br_lck = do_lock(smbd_messaging_context(),
6119                                         fsp,
6120                                         lock_pid,
6121                                         count,
6122                                         offset,
6123                                         lock_type,
6124                                         WINDOWS_LOCK,
6125                                         blocking_lock,
6126                                         &status,
6127                                         &block_smbpid);
6128
6129                         if (br_lck && blocking_lock && ERROR_WAS_LOCK_DENIED(status)) {
6130                                 /* Windows internal resolution for blocking locks seems
6131                                    to be about 200ms... Don't wait for less than that. JRA. */
6132                                 if (lock_timeout != -1 && lock_timeout < lp_lock_spin_time()) {
6133                                         lock_timeout = lp_lock_spin_time();
6134                                 }
6135                                 defer_lock = True;
6136                         }
6137
6138                         /* This heuristic seems to match W2K3 very well. If a
6139                            lock sent with timeout of zero would fail with NT_STATUS_FILE_LOCK_CONFLICT
6140                            it pretends we asked for a timeout of between 150 - 300 milliseconds as
6141                            far as I can tell. Replacement for do_lock_spin(). JRA. */
6142
6143                         if (br_lck && lp_blocking_locks(SNUM(conn)) && !blocking_lock &&
6144                                         NT_STATUS_EQUAL((status), NT_STATUS_FILE_LOCK_CONFLICT)) {
6145                                 defer_lock = True;
6146                                 lock_timeout = lp_lock_spin_time();
6147                         }
6148
6149                         if (br_lck && defer_lock) {
6150                                 /*
6151                                  * A blocking lock was requested. Package up
6152                                  * this smb into a queued request and push it
6153                                  * onto the blocking lock queue.
6154                                  */
6155                                 if(push_blocking_lock_request(br_lck,
6156                                                         (char *)req->inbuf,
6157                                                         smb_len(req->inbuf)+4,
6158                                                         fsp,
6159                                                         lock_timeout,
6160                                                         i,
6161                                                         lock_pid,
6162                                                         lock_type,
6163                                                         WINDOWS_LOCK,
6164                                                         offset,
6165                                                         count,
6166                                                         block_smbpid)) {
6167                                         TALLOC_FREE(br_lck);
6168                                         END_PROFILE(SMBlockingX);
6169                                         reply_post_legacy(req, -1);
6170                                         return;
6171                                 }
6172                         }
6173
6174                         TALLOC_FREE(br_lck);
6175                 }
6176
6177                 if (NT_STATUS_V(status)) {
6178                         END_PROFILE(SMBlockingX);
6179                         reply_nterror(req, status);
6180                         return;
6181                 }
6182         }
6183
6184         /* If any of the above locks failed, then we must unlock
6185            all of the previous locks (X/Open spec). */
6186
6187         if (!(locktype & LOCKING_ANDX_CANCEL_LOCK) &&
6188                         (i != num_locks) &&
6189                         (num_locks != 0)) {
6190                 /*
6191                  * Ensure we don't do a remove on the lock that just failed,
6192                  * as under POSIX rules, if we have a lock already there, we
6193                  * will delete it (and we shouldn't) .....
6194                  */
6195                 for(i--; i >= 0; i--) {
6196                         lock_pid = get_lock_pid( data, i, large_file_format);
6197                         count = get_lock_count( data, i, large_file_format);
6198                         offset = get_lock_offset( data, i, large_file_format,
6199                                                   &err);
6200
6201                         /*
6202                          * There is no error code marked "stupid client
6203                          * bug".... :-).
6204                          */
6205                         if(err) {
6206                                 END_PROFILE(SMBlockingX);
6207                                 reply_doserror(req, ERRDOS, ERRnoaccess);
6208                                 return;
6209                         }
6210
6211                         do_unlock(smbd_messaging_context(),
6212                                 fsp,
6213                                 lock_pid,
6214                                 count,
6215                                 offset,
6216                                 WINDOWS_LOCK);
6217                 }
6218                 END_PROFILE(SMBlockingX);
6219                 reply_nterror(req, status);
6220                 return;
6221         }
6222
6223         reply_outbuf(req, 2, 0);
6224
6225         DEBUG(3, ("lockingX fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
6226                   fsp->fnum, (unsigned int)locktype, num_locks, num_ulocks));
6227
6228         END_PROFILE(SMBlockingX);
6229         chain_reply_new(req);
6230 }
6231
6232 #undef DBGC_CLASS
6233 #define DBGC_CLASS DBGC_ALL
6234
6235 /****************************************************************************
6236  Reply to a SMBreadbmpx (read block multiplex) request.
6237 ****************************************************************************/
6238
6239 int reply_readbmpx(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize)
6240 {
6241         ssize_t nread = -1;
6242         ssize_t total_read;
6243         char *data;
6244         SMB_OFF_T startpos;
6245         int outsize;
6246         size_t maxcount;
6247         int max_per_packet;
6248         size_t tcount;
6249         int pad;
6250         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
6251         START_PROFILE(SMBreadBmpx);
6252
6253         /* this function doesn't seem to work - disable by default */
6254         if (!lp_readbmpx()) {
6255                 END_PROFILE(SMBreadBmpx);
6256                 return ERROR_DOS(ERRSRV,ERRuseSTD);
6257         }
6258
6259         outsize = set_message(inbuf,outbuf,8,0,True);
6260
6261         CHECK_FSP(fsp,conn);
6262         if (!CHECK_READ(fsp,inbuf)) {
6263                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
6264         }
6265
6266         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv1);
6267         maxcount = SVAL(inbuf,smb_vwv3);
6268
6269         data = smb_buf(outbuf);
6270         pad = ((long)data)%4;
6271         if (pad)
6272                 pad = 4 - pad;
6273         data += pad;
6274
6275         max_per_packet = bufsize-(outsize+pad);
6276         tcount = maxcount;
6277         total_read = 0;
6278
6279         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)maxcount,(SMB_BIG_UINT)startpos, READ_LOCK)) {
6280                 END_PROFILE(SMBreadBmpx);
6281                 return ERROR_DOS(ERRDOS,ERRlock);
6282         }
6283
6284         do {
6285                 size_t N = MIN(max_per_packet,tcount-total_read);
6286
6287                 nread = read_file(fsp,data,startpos,N);
6288
6289                 if (nread <= 0)
6290                         nread = 0;
6291
6292                 if (nread < (ssize_t)N)
6293                         tcount = total_read + nread;
6294
6295                 set_message(inbuf,outbuf,8,nread+pad,False);
6296                 SIVAL(outbuf,smb_vwv0,startpos);
6297                 SSVAL(outbuf,smb_vwv2,tcount);
6298                 SSVAL(outbuf,smb_vwv6,nread);
6299                 SSVAL(outbuf,smb_vwv7,smb_offset(data,outbuf));
6300
6301                 show_msg(outbuf);
6302                 if (!send_smb(smbd_server_fd(),outbuf))
6303                         exit_server_cleanly("reply_readbmpx: send_smb failed.");
6304
6305                 total_read += nread;
6306                 startpos += nread;
6307         } while (total_read < (ssize_t)tcount);
6308
6309         END_PROFILE(SMBreadBmpx);
6310         return(-1);
6311 }
6312
6313 /****************************************************************************
6314  Reply to a SMBsetattrE.
6315 ****************************************************************************/
6316
6317 int reply_setattrE(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
6318 {
6319         struct timespec ts[2];
6320         int outsize = 0;
6321         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
6322         START_PROFILE(SMBsetattrE);
6323
6324         outsize = set_message(inbuf,outbuf,0,0,False);
6325
6326         if(!fsp || (fsp->conn != conn)) {
6327                 END_PROFILE(SMBsetattrE);
6328                 return ERROR_DOS(ERRDOS,ERRbadfid);
6329         }
6330
6331         /*
6332          * Convert the DOS times into unix times. Ignore create
6333          * time as UNIX can't set this.
6334          */
6335
6336         ts[0] = convert_time_t_to_timespec(srv_make_unix_date2(inbuf+smb_vwv3)); /* atime. */
6337         ts[1] = convert_time_t_to_timespec(srv_make_unix_date2(inbuf+smb_vwv5)); /* mtime. */
6338
6339         /*
6340          * Patch from Ray Frush <frush@engr.colostate.edu>
6341          * Sometimes times are sent as zero - ignore them.
6342          */
6343
6344         if (null_timespec(ts[0]) && null_timespec(ts[1])) {
6345                 /* Ignore request */
6346                 if( DEBUGLVL( 3 ) ) {
6347                         dbgtext( "reply_setattrE fnum=%d ", fsp->fnum);
6348                         dbgtext( "ignoring zero request - not setting timestamps of 0\n" );
6349                 }
6350                 END_PROFILE(SMBsetattrE);
6351                 return(outsize);
6352         } else if (!null_timespec(ts[0]) && null_timespec(ts[1])) {
6353                 /* set modify time = to access time if modify time was unset */
6354                 ts[1] = ts[0];
6355         }
6356
6357         /* Set the date on this file */
6358         /* Should we set pending modtime here ? JRA */
6359         if(file_ntimes(conn, fsp->fsp_name, ts)) {
6360                 END_PROFILE(SMBsetattrE);
6361                 return ERROR_DOS(ERRDOS,ERRnoaccess);
6362         }
6363
6364         DEBUG( 3, ( "reply_setattrE fnum=%d actime=%u modtime=%u\n",
6365                 fsp->fnum,
6366                 (unsigned int)ts[0].tv_sec,
6367                 (unsigned int)ts[1].tv_sec));
6368
6369         END_PROFILE(SMBsetattrE);
6370         return(outsize);
6371 }
6372
6373
6374 /* Back from the dead for OS/2..... JRA. */
6375
6376 /****************************************************************************
6377  Reply to a SMBwritebmpx (write block multiplex primary) request.
6378 ****************************************************************************/
6379
6380 int reply_writebmpx(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
6381 {
6382         size_t numtowrite;
6383         ssize_t nwritten = -1;
6384         int outsize = 0;
6385         SMB_OFF_T startpos;
6386         size_t tcount;
6387         BOOL write_through;
6388         int smb_doff;
6389         char *data;
6390         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
6391         NTSTATUS status;
6392         START_PROFILE(SMBwriteBmpx);
6393
6394         CHECK_FSP(fsp,conn);
6395         if (!CHECK_WRITE(fsp)) {
6396                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
6397         }
6398         if (HAS_CACHED_ERROR(fsp)) {
6399                 return(CACHED_ERROR(fsp));
6400         }
6401
6402         tcount = SVAL(inbuf,smb_vwv1);
6403         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv3);
6404         write_through = BITSETW(inbuf+smb_vwv7,0);
6405         numtowrite = SVAL(inbuf,smb_vwv10);
6406         smb_doff = SVAL(inbuf,smb_vwv11);
6407
6408         data = smb_base(inbuf) + smb_doff;
6409
6410         /* If this fails we need to send an SMBwriteC response,
6411                 not an SMBwritebmpx - set this up now so we don't forget */
6412         SCVAL(outbuf,smb_com,SMBwritec);
6413
6414         if (is_locked(fsp,(uint32)SVAL(inbuf,smb_pid),(SMB_BIG_UINT)tcount,(SMB_BIG_UINT)startpos,WRITE_LOCK)) {
6415                 END_PROFILE(SMBwriteBmpx);
6416                 return(ERROR_DOS(ERRDOS,ERRlock));
6417         }
6418
6419         nwritten = write_file(fsp,data,startpos,numtowrite);
6420
6421         status = sync_file(conn, fsp, write_through);
6422         if (!NT_STATUS_IS_OK(status)) {
6423                 END_PROFILE(SMBwriteBmpx);
6424                 DEBUG(5,("reply_writebmpx: sync_file for %s returned %s\n",
6425                         fsp->fsp_name, nt_errstr(status) ));
6426                 return ERROR_NT(status);
6427         }
6428
6429         if(nwritten < (ssize_t)numtowrite) {
6430                 END_PROFILE(SMBwriteBmpx);
6431                 return(UNIXERROR(ERRHRD,ERRdiskfull));
6432         }
6433
6434         /* If the maximum to be written to this file
6435                 is greater than what we just wrote then set
6436                 up a secondary struct to be attached to this
6437                 fd, we will use this to cache error messages etc. */
6438
6439         if((ssize_t)tcount > nwritten) {
6440                 write_bmpx_struct *wbms;
6441                 if(fsp->wbmpx_ptr != NULL)
6442                         wbms = fsp->wbmpx_ptr; /* Use an existing struct */
6443                 else
6444                         wbms = SMB_MALLOC_P(write_bmpx_struct);
6445                 if(!wbms) {
6446                         DEBUG(0,("Out of memory in reply_readmpx\n"));
6447                         END_PROFILE(SMBwriteBmpx);
6448                         return(ERROR_DOS(ERRSRV,ERRnoresource));
6449                 }
6450                 wbms->wr_mode = write_through;
6451                 wbms->wr_discard = False; /* No errors yet */
6452                 wbms->wr_total_written = nwritten;
6453                 wbms->wr_errclass = 0;
6454                 wbms->wr_error = 0;
6455                 fsp->wbmpx_ptr = wbms;
6456         }
6457
6458         /* We are returning successfully, set the message type back to
6459                 SMBwritebmpx */
6460         SCVAL(outbuf,smb_com,SMBwriteBmpx);
6461
6462         outsize = set_message(inbuf,outbuf,1,0,True);
6463
6464         SSVALS(outbuf,smb_vwv0,-1); /* We don't support smb_remaining */
6465
6466         DEBUG( 3, ( "writebmpx fnum=%d num=%d wrote=%d\n",
6467                         fsp->fnum, (int)numtowrite, (int)nwritten ) );
6468
6469         if (write_through && tcount==nwritten) {
6470                 /* We need to send both a primary and a secondary response */
6471                 smb_setlen(inbuf,outbuf,outsize - 4);
6472                 show_msg(outbuf);
6473                 if (!send_smb(smbd_server_fd(),outbuf))
6474                         exit_server_cleanly("reply_writebmpx: send_smb failed.");
6475
6476                 /* Now the secondary */
6477                 outsize = set_message(inbuf,outbuf,1,0,True);
6478                 SCVAL(outbuf,smb_com,SMBwritec);
6479                 SSVAL(outbuf,smb_vwv0,nwritten);
6480         }
6481
6482         END_PROFILE(SMBwriteBmpx);
6483         return(outsize);
6484 }
6485
6486 /****************************************************************************
6487  Reply to a SMBwritebs (write block multiplex secondary) request.
6488 ****************************************************************************/
6489
6490 int reply_writebs(connection_struct *conn, char *inbuf,char *outbuf, int dum_size, int dum_buffsize)
6491 {
6492         size_t numtowrite;
6493         ssize_t nwritten = -1;
6494         int outsize = 0;
6495         SMB_OFF_T startpos;
6496         size_t tcount;
6497         BOOL write_through;
6498         int smb_doff;
6499         char *data;
6500         write_bmpx_struct *wbms;
6501         BOOL send_response = False;
6502         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
6503         NTSTATUS status;
6504         START_PROFILE(SMBwriteBs);
6505
6506         CHECK_FSP(fsp,conn);
6507         if (!CHECK_WRITE(fsp)) {
6508                 return(ERROR_DOS(ERRDOS,ERRbadaccess));
6509         }
6510
6511         tcount = SVAL(inbuf,smb_vwv1);
6512         startpos = IVAL_TO_SMB_OFF_T(inbuf,smb_vwv2);
6513         numtowrite = SVAL(inbuf,smb_vwv6);
6514         smb_doff = SVAL(inbuf,smb_vwv7);
6515
6516         data = smb_base(inbuf) + smb_doff;
6517
6518         /* We need to send an SMBwriteC response, not an SMBwritebs */
6519         SCVAL(outbuf,smb_com,SMBwritec);
6520
6521         /* This fd should have an auxiliary struct attached,
6522                 check that it does */
6523         wbms = fsp->wbmpx_ptr;
6524         if(!wbms) {
6525                 END_PROFILE(SMBwriteBs);
6526                 return(-1);
6527         }
6528
6529         /* If write through is set we can return errors, else we must cache them */
6530         write_through = wbms->wr_mode;
6531
6532         /* Check for an earlier error */
6533         if(wbms->wr_discard) {
6534                 END_PROFILE(SMBwriteBs);
6535                 return -1; /* Just discard the packet */
6536         }
6537
6538         nwritten = write_file(fsp,data,startpos,numtowrite);
6539
6540         status = sync_file(conn, fsp, write_through);
6541
6542         if (nwritten < (ssize_t)numtowrite || !NT_STATUS_IS_OK(status)) {
6543                 if(write_through) {
6544                         /* We are returning an error - we can delete the aux struct */
6545                         if (wbms)
6546                                 free((char *)wbms);
6547                         fsp->wbmpx_ptr = NULL;
6548                         END_PROFILE(SMBwriteBs);
6549                         return(ERROR_DOS(ERRHRD,ERRdiskfull));
6550                 }
6551                 wbms->wr_errclass = ERRHRD;
6552                 wbms->wr_error = ERRdiskfull;
6553                 wbms->wr_status = NT_STATUS_DISK_FULL;
6554                 wbms->wr_discard = True;
6555                 END_PROFILE(SMBwriteBs);
6556                 return -1;
6557         }
6558
6559         /* Increment the total written, if this matches tcount
6560                 we can discard the auxiliary struct (hurrah !) and return a writeC */
6561         wbms->wr_total_written += nwritten;
6562         if(wbms->wr_total_written >= tcount) {
6563                 if (write_through) {
6564                         outsize = set_message(inbuf,outbuf,1,0,True);
6565                         SSVAL(outbuf,smb_vwv0,wbms->wr_total_written);
6566                         send_response = True;
6567                 }
6568
6569                 free((char *)wbms);
6570                 fsp->wbmpx_ptr = NULL;
6571         }
6572
6573         if(send_response) {
6574                 END_PROFILE(SMBwriteBs);
6575                 return(outsize);
6576         }
6577
6578         END_PROFILE(SMBwriteBs);
6579         return(-1);
6580 }
6581
6582 /****************************************************************************
6583  Reply to a SMBgetattrE.
6584 ****************************************************************************/
6585
6586 int reply_getattrE(connection_struct *conn, char *inbuf,char *outbuf, int size, int dum_buffsize)
6587 {
6588         SMB_STRUCT_STAT sbuf;
6589         int outsize = 0;
6590         int mode;
6591         files_struct *fsp = file_fsp(SVAL(inbuf,smb_vwv0));
6592         START_PROFILE(SMBgetattrE);
6593
6594         outsize = set_message(inbuf,outbuf,11,0,True);
6595
6596         if(!fsp || (fsp->conn != conn)) {
6597                 END_PROFILE(SMBgetattrE);
6598                 return ERROR_DOS(ERRDOS,ERRbadfid);
6599         }
6600
6601         /* Do an fstat on this file */
6602         if(fsp_stat(fsp, &sbuf)) {
6603                 END_PROFILE(SMBgetattrE);
6604                 return(UNIXERROR(ERRDOS,ERRnoaccess));
6605         }
6606
6607         mode = dos_mode(conn,fsp->fsp_name,&sbuf);
6608
6609         /*
6610          * Convert the times into dos times. Set create
6611          * date to be last modify date as UNIX doesn't save
6612          * this.
6613          */
6614
6615         srv_put_dos_date2(outbuf,smb_vwv0,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))));
6616         srv_put_dos_date2(outbuf,smb_vwv2,sbuf.st_atime);
6617         /* Should we check pending modtime here ? JRA */
6618         srv_put_dos_date2(outbuf,smb_vwv4,sbuf.st_mtime);
6619
6620         if (mode & aDIR) {
6621                 SIVAL(outbuf,smb_vwv6,0);
6622                 SIVAL(outbuf,smb_vwv8,0);
6623         } else {
6624                 uint32 allocation_size = get_allocation_size(conn,fsp, &sbuf);
6625                 SIVAL(outbuf,smb_vwv6,(uint32)sbuf.st_size);
6626                 SIVAL(outbuf,smb_vwv8,allocation_size);
6627         }
6628         SSVAL(outbuf,smb_vwv10, mode);
6629
6630         DEBUG( 3, ( "reply_getattrE fnum=%d\n", fsp->fnum));
6631
6632         END_PROFILE(SMBgetattrE);
6633         return(outsize);
6634 }