1/* 2 Unix SMB/CIFS implementation. 3 Samba utility functions 4 Copyright (C) Andrew Tridgell 1992-1998 5 Copyright (C) Jeremy Allison 2001-2007 6 Copyright (C) Simo Sorce 2001 7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003 8 Copyright (C) James Peach 2006 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program. If not, see <http://www.gnu.org/licenses/>. 22*/ 23 24#include "includes.h" 25 26extern char *global_clobber_region_function; 27extern unsigned int global_clobber_region_line; 28 29/* Max allowable allococation - 256mb - 0x10000000 */ 30#define MAX_ALLOC_SIZE (1024*1024*256) 31 32#if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT)) 33#ifdef WITH_NISPLUS_HOME 34#ifdef BROKEN_NISPLUS_INCLUDE_FILES 35/* 36 * The following lines are needed due to buggy include files 37 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and 38 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA. 39 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as 40 * an enum in /usr/include/rpcsvc/nis.h. 41 */ 42 43#if defined(GROUP) 44#undef GROUP 45#endif 46 47#if defined(GROUP_OBJ) 48#undef GROUP_OBJ 49#endif 50 51#endif /* BROKEN_NISPLUS_INCLUDE_FILES */ 52 53#include <rpcsvc/nis.h> 54 55#endif /* WITH_NISPLUS_HOME */ 56#endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */ 57 58static enum protocol_types Protocol = PROTOCOL_COREPLUS; 59 60enum protocol_types get_Protocol(void) 61{ 62 return Protocol; 63} 64 65void set_Protocol(enum protocol_types p) 66{ 67 Protocol = p; 68} 69 70static enum remote_arch_types ra_type = RA_UNKNOWN; 71 72/*********************************************************************** 73 Definitions for all names. 74***********************************************************************/ 75 76static char *smb_myname; 77static char *smb_myworkgroup; 78static char *smb_scope; 79static int smb_num_netbios_names; 80static char **smb_my_netbios_names; 81 82/*********************************************************************** 83 Allocate and set myname. Ensure upper case. 84***********************************************************************/ 85 86bool set_global_myname(const char *myname) 87{ 88 SAFE_FREE(smb_myname); 89 smb_myname = SMB_STRDUP(myname); 90 if (!smb_myname) 91 return False; 92 strupper_m(smb_myname); 93 return True; 94} 95 96const char *global_myname(void) 97{ 98 return smb_myname; 99} 100 101/*********************************************************************** 102 Allocate and set myworkgroup. Ensure upper case. 103***********************************************************************/ 104 105bool set_global_myworkgroup(const char *myworkgroup) 106{ 107 SAFE_FREE(smb_myworkgroup); 108 smb_myworkgroup = SMB_STRDUP(myworkgroup); 109 if (!smb_myworkgroup) 110 return False; 111 strupper_m(smb_myworkgroup); 112 return True; 113} 114 115const char *lp_workgroup(void) 116{ 117 return smb_myworkgroup; 118} 119 120/*********************************************************************** 121 Allocate and set scope. Ensure upper case. 122***********************************************************************/ 123 124bool set_global_scope(const char *scope) 125{ 126 SAFE_FREE(smb_scope); 127 smb_scope = SMB_STRDUP(scope); 128 if (!smb_scope) 129 return False; 130 strupper_m(smb_scope); 131 return True; 132} 133 134/********************************************************************* 135 Ensure scope is never null string. 136*********************************************************************/ 137 138const char *global_scope(void) 139{ 140 if (!smb_scope) 141 set_global_scope(""); 142 return smb_scope; 143} 144 145static void free_netbios_names_array(void) 146{ 147 int i; 148 149 for (i = 0; i < smb_num_netbios_names; i++) 150 SAFE_FREE(smb_my_netbios_names[i]); 151 152 SAFE_FREE(smb_my_netbios_names); 153 smb_num_netbios_names = 0; 154} 155 156static bool allocate_my_netbios_names_array(size_t number) 157{ 158 free_netbios_names_array(); 159 160 smb_num_netbios_names = number + 1; 161 smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names ); 162 163 if (!smb_my_netbios_names) 164 return False; 165 166 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names); 167 return True; 168} 169 170static bool set_my_netbios_names(const char *name, int i) 171{ 172 SAFE_FREE(smb_my_netbios_names[i]); 173 174 smb_my_netbios_names[i] = SMB_STRDUP(name); 175 if (!smb_my_netbios_names[i]) 176 return False; 177 strupper_m(smb_my_netbios_names[i]); 178 return True; 179} 180 181/*********************************************************************** 182 Free memory allocated to global objects 183***********************************************************************/ 184 185void gfree_names(void) 186{ 187 SAFE_FREE( smb_myname ); 188 SAFE_FREE( smb_myworkgroup ); 189 SAFE_FREE( smb_scope ); 190 free_netbios_names_array(); 191 free_local_machine_name(); 192} 193 194void gfree_all( void ) 195{ 196 gfree_names(); 197 gfree_loadparm(); 198 gfree_case_tables(); 199 gfree_charcnv(); 200 gfree_interfaces(); 201 gfree_debugsyms(); 202} 203 204const char *my_netbios_names(int i) 205{ 206 return smb_my_netbios_names[i]; 207} 208 209bool set_netbios_aliases(const char **str_array) 210{ 211 size_t namecount; 212 213 /* Work out the max number of netbios aliases that we have */ 214 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ ) 215 ; 216 217 if ( global_myname() && *global_myname()) 218 namecount++; 219 220 /* Allocate space for the netbios aliases */ 221 if (!allocate_my_netbios_names_array(namecount)) 222 return False; 223 224 /* Use the global_myname string first */ 225 namecount=0; 226 if ( global_myname() && *global_myname()) { 227 set_my_netbios_names( global_myname(), namecount ); 228 namecount++; 229 } 230 231 if (str_array) { 232 size_t i; 233 for ( i = 0; str_array[i] != NULL; i++) { 234 size_t n; 235 bool duplicate = False; 236 237 /* Look for duplicates */ 238 for( n=0; n<namecount; n++ ) { 239 if( strequal( str_array[i], my_netbios_names(n) ) ) { 240 duplicate = True; 241 break; 242 } 243 } 244 if (!duplicate) { 245 if (!set_my_netbios_names(str_array[i], namecount)) 246 return False; 247 namecount++; 248 } 249 } 250 } 251 return True; 252} 253 254/**************************************************************************** 255 Common name initialization code. 256****************************************************************************/ 257 258bool init_names(void) 259{ 260 int n; 261 262 if (global_myname() == NULL || *global_myname() == '\0') { 263 if (!set_global_myname(myhostname())) { 264 DEBUG( 0, ( "init_structs: malloc fail.\n" ) ); 265 return False; 266 } 267 } 268 269 if (!set_netbios_aliases(lp_netbios_aliases())) { 270 DEBUG( 0, ( "init_structs: malloc fail.\n" ) ); 271 return False; 272 } 273 274 set_local_machine_name(global_myname(),false); 275 276 DEBUG( 5, ("Netbios name list:-\n") ); 277 for( n=0; my_netbios_names(n); n++ ) { 278 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n", 279 n, my_netbios_names(n) ) ); 280 } 281 282 return( True ); 283} 284 285/**************************************************************************n 286 Code to cope with username/password auth options from the commandline. 287 Used mainly in client tools. 288****************************************************************************/ 289 290struct user_auth_info *user_auth_info_init(TALLOC_CTX *mem_ctx) 291{ 292 struct user_auth_info *result; 293 294 result = TALLOC_ZERO_P(mem_ctx, struct user_auth_info); 295 if (result == NULL) { 296 return NULL; 297 } 298 299 result->signing_state = Undefined; 300 return result; 301} 302 303const char *get_cmdline_auth_info_username(const struct user_auth_info *auth_info) 304{ 305 if (!auth_info->username) { 306 return ""; 307 } 308 return auth_info->username; 309} 310 311void set_cmdline_auth_info_username(struct user_auth_info *auth_info, 312 const char *username) 313{ 314 TALLOC_FREE(auth_info->username); 315 auth_info->username = talloc_strdup(auth_info, username); 316 if (!auth_info->username) { 317 exit(ENOMEM); 318 } 319} 320 321const char *get_cmdline_auth_info_domain(const struct user_auth_info *auth_info) 322{ 323 if (!auth_info->domain) { 324 return ""; 325 } 326 return auth_info->domain; 327} 328 329void set_cmdline_auth_info_domain(struct user_auth_info *auth_info, 330 const char *domain) 331{ 332 TALLOC_FREE(auth_info->domain); 333 auth_info->domain = talloc_strdup(auth_info, domain); 334 if (!auth_info->domain) { 335 exit(ENOMEM); 336 } 337} 338 339const char *get_cmdline_auth_info_password(const struct user_auth_info *auth_info) 340{ 341 if (!auth_info->password) { 342 return ""; 343 } 344 return auth_info->password; 345} 346 347void set_cmdline_auth_info_password(struct user_auth_info *auth_info, 348 const char *password) 349{ 350 TALLOC_FREE(auth_info->password); 351 if (password == NULL) { 352 password = ""; 353 } 354 auth_info->password = talloc_strdup(auth_info, password); 355 if (!auth_info->password) { 356 exit(ENOMEM); 357 } 358 auth_info->got_pass = true; 359} 360 361bool set_cmdline_auth_info_signing_state(struct user_auth_info *auth_info, 362 const char *arg) 363{ 364 auth_info->signing_state = -1; 365 if (strequal(arg, "off") || strequal(arg, "no") || 366 strequal(arg, "false")) { 367 auth_info->signing_state = false; 368 } else if (strequal(arg, "on") || strequal(arg, "yes") || 369 strequal(arg, "true") || strequal(arg, "auto")) { 370 auth_info->signing_state = true; 371 } else if (strequal(arg, "force") || strequal(arg, "required") || 372 strequal(arg, "forced")) { 373 auth_info->signing_state = Required; 374 } else { 375 return false; 376 } 377 return true; 378} 379 380int get_cmdline_auth_info_signing_state(const struct user_auth_info *auth_info) 381{ 382 return auth_info->signing_state; 383} 384 385void set_cmdline_auth_info_use_ccache(struct user_auth_info *auth_info, bool b) 386{ 387 auth_info->use_ccache = b; 388} 389 390bool get_cmdline_auth_info_use_ccache(const struct user_auth_info *auth_info) 391{ 392 return auth_info->use_ccache; 393} 394 395void set_cmdline_auth_info_use_kerberos(struct user_auth_info *auth_info, 396 bool b) 397{ 398 auth_info->use_kerberos = b; 399} 400 401bool get_cmdline_auth_info_use_kerberos(const struct user_auth_info *auth_info) 402{ 403 return auth_info->use_kerberos; 404} 405 406void set_cmdline_auth_info_fallback_after_kerberos(struct user_auth_info *auth_info, 407 bool b) 408{ 409 auth_info->fallback_after_kerberos = b; 410} 411 412bool get_cmdline_auth_info_fallback_after_kerberos(const struct user_auth_info *auth_info) 413{ 414 return auth_info->fallback_after_kerberos; 415} 416 417/* This should only be used by lib/popt_common.c JRA */ 418void set_cmdline_auth_info_use_krb5_ticket(struct user_auth_info *auth_info) 419{ 420 auth_info->use_kerberos = true; 421 auth_info->got_pass = true; 422} 423 424/* This should only be used by lib/popt_common.c JRA */ 425void set_cmdline_auth_info_smb_encrypt(struct user_auth_info *auth_info) 426{ 427 auth_info->smb_encrypt = true; 428} 429 430void set_cmdline_auth_info_use_machine_account(struct user_auth_info *auth_info) 431{ 432 auth_info->use_machine_account = true; 433} 434 435bool get_cmdline_auth_info_got_pass(const struct user_auth_info *auth_info) 436{ 437 return auth_info->got_pass; 438} 439 440bool get_cmdline_auth_info_smb_encrypt(const struct user_auth_info *auth_info) 441{ 442 return auth_info->smb_encrypt; 443} 444 445bool get_cmdline_auth_info_use_machine_account(const struct user_auth_info *auth_info) 446{ 447 return auth_info->use_machine_account; 448} 449 450struct user_auth_info *get_cmdline_auth_info_copy(TALLOC_CTX *mem_ctx, 451 const struct user_auth_info *src) 452{ 453 struct user_auth_info *result; 454 455 result = user_auth_info_init(mem_ctx); 456 if (result == NULL) { 457 return NULL; 458 } 459 460 *result = *src; 461 462 result->username = talloc_strdup( 463 result, get_cmdline_auth_info_username(src)); 464 result->password = talloc_strdup( 465 result, get_cmdline_auth_info_password(src)); 466 if ((result->username == NULL) || (result->password == NULL)) { 467 TALLOC_FREE(result); 468 return NULL; 469 } 470 471 return result; 472} 473 474bool set_cmdline_auth_info_machine_account_creds(struct user_auth_info *auth_info) 475{ 476 char *pass = NULL; 477 char *account = NULL; 478 479 if (!get_cmdline_auth_info_use_machine_account(auth_info)) { 480 return false; 481 } 482 483 if (!secrets_init()) { 484 d_printf("ERROR: Unable to open secrets database\n"); 485 return false; 486 } 487 488 if (asprintf(&account, "%s$@%s", global_myname(), lp_realm()) < 0) { 489 return false; 490 } 491 492 pass = secrets_fetch_machine_password(lp_workgroup(), NULL, NULL); 493 if (!pass) { 494 d_printf("ERROR: Unable to fetch machine password for " 495 "%s in domain %s\n", 496 account, lp_workgroup()); 497 SAFE_FREE(account); 498 return false; 499 } 500 501 set_cmdline_auth_info_username(auth_info, account); 502 set_cmdline_auth_info_password(auth_info, pass); 503 504 SAFE_FREE(account); 505 SAFE_FREE(pass); 506 507 return true; 508} 509 510/**************************************************************************** 511 Ensure we have a password if one not given. 512****************************************************************************/ 513 514void set_cmdline_auth_info_getpass(struct user_auth_info *auth_info) 515{ 516 char *label = NULL; 517 char *pass; 518 TALLOC_CTX *frame; 519 520 if (get_cmdline_auth_info_got_pass(auth_info) || 521 get_cmdline_auth_info_use_kerberos(auth_info)) { 522 /* Already got one... */ 523 return; 524 } 525 526 frame = talloc_stackframe(); 527 label = talloc_asprintf(frame, "Enter %s's password: ", 528 get_cmdline_auth_info_username(auth_info)); 529 pass = getpass(label); 530 if (pass) { 531 set_cmdline_auth_info_password(auth_info, pass); 532 } 533 TALLOC_FREE(frame); 534} 535 536/******************************************************************* 537 Check if a file exists - call vfs_file_exist for samba files. 538********************************************************************/ 539 540bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf, 541 bool fake_dir_create_times) 542{ 543 SMB_STRUCT_STAT st; 544 if (!sbuf) 545 sbuf = &st; 546 547 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0) 548 return(False); 549 550 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode))); 551} 552 553/******************************************************************* 554 Check if a unix domain socket exists - call vfs_file_exist for samba files. 555********************************************************************/ 556 557bool socket_exist(const char *fname) 558{ 559 SMB_STRUCT_STAT st; 560 if (sys_stat(fname, &st, false) != 0) 561 return(False); 562 563 return S_ISSOCK(st.st_ex_mode); 564} 565 566/******************************************************************* 567 Returns the size in bytes of the named given the stat struct. 568********************************************************************/ 569 570uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf) 571{ 572 return sbuf->st_ex_size; 573} 574 575/******************************************************************* 576 Returns the size in bytes of the named file. 577********************************************************************/ 578 579SMB_OFF_T get_file_size(char *file_name) 580{ 581 SMB_STRUCT_STAT buf; 582 buf.st_ex_size = 0; 583 if (sys_stat(file_name, &buf, false) != 0) 584 return (SMB_OFF_T)-1; 585 return get_file_size_stat(&buf); 586} 587 588/******************************************************************* 589 Return a string representing an attribute for a file. 590********************************************************************/ 591 592char *attrib_string(uint16 mode) 593{ 594 fstring attrstr; 595 596 attrstr[0] = 0; 597 598 if (mode & aVOLID) fstrcat(attrstr,"V"); 599 if (mode & aDIR) fstrcat(attrstr,"D"); 600 if (mode & aARCH) fstrcat(attrstr,"A"); 601 if (mode & aHIDDEN) fstrcat(attrstr,"H"); 602 if (mode & aSYSTEM) fstrcat(attrstr,"S"); 603 if (mode & aRONLY) fstrcat(attrstr,"R"); 604 605 return talloc_strdup(talloc_tos(), attrstr); 606} 607 608/******************************************************************* 609 Show a smb message structure. 610********************************************************************/ 611 612void show_msg(char *buf) 613{ 614 int i; 615 int bcc=0; 616 617 if (!DEBUGLVL(5)) 618 return; 619 620 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n", 621 smb_len(buf), 622 (int)CVAL(buf,smb_com), 623 (int)CVAL(buf,smb_rcls), 624 (int)CVAL(buf,smb_reh), 625 (int)SVAL(buf,smb_err), 626 (int)CVAL(buf,smb_flg), 627 (int)SVAL(buf,smb_flg2))); 628 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n", 629 (int)SVAL(buf,smb_tid), 630 (int)SVAL(buf,smb_pid), 631 (int)SVAL(buf,smb_uid), 632 (int)SVAL(buf,smb_mid))); 633 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct))); 634 635 for (i=0;i<(int)CVAL(buf,smb_wct);i++) 636 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i, 637 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i))); 638 639 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct))); 640 641 DEBUGADD(5,("smb_bcc=%d\n",bcc)); 642 643 if (DEBUGLEVEL < 10) 644 return; 645 646 if (DEBUGLEVEL < 50) 647 bcc = MIN(bcc, 512); 648 649 dump_data(10, (uint8 *)smb_buf(buf), bcc); 650} 651 652/******************************************************************* 653 Set the length and marker of an encrypted smb packet. 654********************************************************************/ 655 656void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num) 657{ 658 _smb_setlen(buf,len); 659 660 SCVAL(buf,4,0xFF); 661 SCVAL(buf,5,'E'); 662 SSVAL(buf,6,enc_ctx_num); 663} 664 665/******************************************************************* 666 Set the length and marker of an smb packet. 667********************************************************************/ 668 669void smb_setlen(char *buf,int len) 670{ 671 _smb_setlen(buf,len); 672 673 SCVAL(buf,4,0xFF); 674 SCVAL(buf,5,'S'); 675 SCVAL(buf,6,'M'); 676 SCVAL(buf,7,'B'); 677} 678 679/******************************************************************* 680 Setup only the byte count for a smb message. 681********************************************************************/ 682 683int set_message_bcc(char *buf,int num_bytes) 684{ 685 int num_words = CVAL(buf,smb_wct); 686 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes); 687 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4); 688 return (smb_size + num_words*2 + num_bytes); 689} 690 691/******************************************************************* 692 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len. 693 Return the bytes added 694********************************************************************/ 695 696ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob) 697{ 698 size_t newlen = smb_len(*outbuf) + 4 + blob.length; 699 uint8 *tmp; 700 701 if (!(tmp = TALLOC_REALLOC_ARRAY(NULL, *outbuf, uint8, newlen))) { 702 DEBUG(0, ("talloc failed\n")); 703 return -1; 704 } 705 *outbuf = tmp; 706 707 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length); 708 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length); 709 return blob.length; 710} 711 712/******************************************************************* 713 Reduce a file name, removing .. elements. 714********************************************************************/ 715 716static char *dos_clean_name(TALLOC_CTX *ctx, const char *s) 717{ 718 char *p = NULL; 719 char *str = NULL; 720 721 DEBUG(3,("dos_clean_name [%s]\n",s)); 722 723 /* remove any double slashes */ 724 str = talloc_all_string_sub(ctx, s, "\\\\", "\\"); 725 if (!str) { 726 return NULL; 727 } 728 729 /* Remove leading .\\ characters */ 730 if(strncmp(str, ".\\", 2) == 0) { 731 trim_string(str, ".\\", NULL); 732 if(*str == 0) { 733 str = talloc_strdup(ctx, ".\\"); 734 if (!str) { 735 return NULL; 736 } 737 } 738 } 739 740 while ((p = strstr_m(str,"\\..\\")) != NULL) { 741 char *s1; 742 743 *p = 0; 744 s1 = p+3; 745 746 if ((p=strrchr_m(str,'\\')) != NULL) { 747 *p = 0; 748 } else { 749 *str = 0; 750 } 751 str = talloc_asprintf(ctx, 752 "%s%s", 753 str, 754 s1); 755 if (!str) { 756 return NULL; 757 } 758 } 759 760 trim_string(str,NULL,"\\.."); 761 return talloc_all_string_sub(ctx, str, "\\.\\", "\\"); 762} 763 764/******************************************************************* 765 Reduce a file name, removing .. elements. 766********************************************************************/ 767 768char *unix_clean_name(TALLOC_CTX *ctx, const char *s) 769{ 770 char *p = NULL; 771 char *str = NULL; 772 773 DEBUG(3,("unix_clean_name [%s]\n",s)); 774 775 /* remove any double slashes */ 776 str = talloc_all_string_sub(ctx, s, "//","/"); 777 if (!str) { 778 return NULL; 779 } 780 781 /* Remove leading ./ characters */ 782 if(strncmp(str, "./", 2) == 0) { 783 trim_string(str, "./", NULL); 784 if(*str == 0) { 785 str = talloc_strdup(ctx, "./"); 786 if (!str) { 787 return NULL; 788 } 789 } 790 } 791 792 while ((p = strstr_m(str,"/../")) != NULL) { 793 char *s1; 794 795 *p = 0; 796 s1 = p+3; 797 798 if ((p=strrchr_m(str,'/')) != NULL) { 799 *p = 0; 800 } else { 801 *str = 0; 802 } 803 str = talloc_asprintf(ctx, 804 "%s%s", 805 str, 806 s1); 807 if (!str) { 808 return NULL; 809 } 810 } 811 812 trim_string(str,NULL,"/.."); 813 return talloc_all_string_sub(ctx, str, "/./", "/"); 814} 815 816char *clean_name(TALLOC_CTX *ctx, const char *s) 817{ 818 char *str = dos_clean_name(ctx, s); 819 if (!str) { 820 return NULL; 821 } 822 return unix_clean_name(ctx, str); 823} 824 825/******************************************************************* 826 Write data into an fd at a given offset. Ignore seek errors. 827********************************************************************/ 828 829ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos) 830{ 831 size_t total=0; 832 ssize_t ret; 833 834 if (pos == (SMB_OFF_T)-1) { 835 return write_data(fd, buffer, N); 836 } 837#if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64) 838 while (total < N) { 839 ret = sys_pwrite(fd,buffer + total,N - total, pos); 840 if (ret == -1 && errno == ESPIPE) { 841 return write_data(fd, buffer + total,N - total); 842 } 843 if (ret == -1) { 844 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) )); 845 return -1; 846 } 847 if (ret == 0) { 848 return total; 849 } 850 total += ret; 851 pos += ret; 852 } 853 return (ssize_t)total; 854#else 855 /* Use lseek and write_data. */ 856 if (sys_lseek(fd, pos, SEEK_SET) == -1) { 857 if (errno != ESPIPE) { 858 return -1; 859 } 860 } 861 return write_data(fd, buffer, N); 862#endif 863} 864 865/******************************************************************* 866 Sleep for a specified number of milliseconds. 867********************************************************************/ 868 869void smb_msleep(unsigned int t) 870{ 871#if defined(HAVE_NANOSLEEP) 872 struct timespec tval; 873 int ret; 874 875 tval.tv_sec = t/1000; 876 tval.tv_nsec = 1000000*(t%1000); 877 878 do { 879 errno = 0; 880 ret = nanosleep(&tval, &tval); 881 } while (ret < 0 && errno == EINTR && (tval.tv_sec > 0 || tval.tv_nsec > 0)); 882#else 883 unsigned int tdiff=0; 884 struct timeval tval,t1,t2; 885 fd_set fds; 886 887 GetTimeOfDay(&t1); 888 t2 = t1; 889 890 while (tdiff < t) { 891 tval.tv_sec = (t-tdiff)/1000; 892 tval.tv_usec = 1000*((t-tdiff)%1000); 893 894 /* Never wait for more than 1 sec. */ 895 if (tval.tv_sec > 1) { 896 tval.tv_sec = 1; 897 tval.tv_usec = 0; 898 } 899 900 FD_ZERO(&fds); 901 errno = 0; 902 sys_select_intr(0,&fds,NULL,NULL,&tval); 903 904 GetTimeOfDay(&t2); 905 if (t2.tv_sec < t1.tv_sec) { 906 /* Someone adjusted time... */ 907 t1 = t2; 908 } 909 910 tdiff = TvalDiff(&t1,&t2); 911 } 912#endif 913} 914 915NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx, 916 struct event_context *ev_ctx, 917 bool parent_longlived) 918{ 919 NTSTATUS status = NT_STATUS_OK; 920 921 /* Reset the state of the random 922 * number generation system, so 923 * children do not get the same random 924 * numbers as each other */ 925 set_need_random_reseed(); 926 927 /* tdb needs special fork handling */ 928 if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) { 929 DEBUG(0,("tdb_reopen_all failed.\n")); 930 status = NT_STATUS_OPEN_FAILED; 931 goto done; 932 } 933 934 if (ev_ctx) { 935 event_context_reinit(ev_ctx); 936 } 937 938 if (msg_ctx) { 939 /* 940 * For clustering, we need to re-init our ctdbd connection after the 941 * fork 942 */ 943 status = messaging_reinit(msg_ctx); 944 if (!NT_STATUS_IS_OK(status)) { 945 DEBUG(0,("messaging_reinit() failed: %s\n", 946 nt_errstr(status))); 947 } 948 } 949 done: 950 return status; 951} 952 953/**************************************************************************** 954 Put up a yes/no prompt. 955****************************************************************************/ 956 957bool yesno(const char *p) 958{ 959 char ans[20]; 960 printf("%s",p); 961 962 if (!fgets(ans,sizeof(ans)-1,stdin)) 963 return(False); 964 965 if (*ans == 'y' || *ans == 'Y') 966 return(True); 967 968 return(False); 969} 970 971#if defined(PARANOID_MALLOC_CHECKER) 972 973/**************************************************************************** 974 Internal malloc wrapper. Externally visible. 975****************************************************************************/ 976 977void *malloc_(size_t size) 978{ 979 if (size == 0) { 980 return NULL; 981 } 982#undef malloc 983 return malloc(size); 984#define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY 985} 986 987/**************************************************************************** 988 Internal calloc wrapper. Not externally visible. 989****************************************************************************/ 990 991static void *calloc_(size_t count, size_t size) 992{ 993 if (size == 0 || count == 0) { 994 return NULL; 995 } 996#undef calloc 997 return calloc(count, size); 998#define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY 999} 1000 1001/**************************************************************************** 1002 Internal realloc wrapper. Not externally visible. 1003****************************************************************************/ 1004 1005static void *realloc_(void *ptr, size_t size) 1006{ 1007#undef realloc 1008 return realloc(ptr, size); 1009#define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY 1010} 1011 1012#endif /* PARANOID_MALLOC_CHECKER */ 1013 1014/**************************************************************************** 1015 Type-safe memalign 1016****************************************************************************/ 1017 1018void *memalign_array(size_t el_size, size_t align, unsigned int count) 1019{ 1020 if (count >= MAX_ALLOC_SIZE/el_size) { 1021 return NULL; 1022 } 1023 1024 return sys_memalign(align, el_size*count); 1025} 1026 1027/**************************************************************************** 1028 Type-safe calloc. 1029****************************************************************************/ 1030 1031void *calloc_array(size_t size, size_t nmemb) 1032{ 1033 if (nmemb >= MAX_ALLOC_SIZE/size) { 1034 return NULL; 1035 } 1036 if (size == 0 || nmemb == 0) { 1037 return NULL; 1038 } 1039#if defined(PARANOID_MALLOC_CHECKER) 1040 return calloc_(nmemb, size); 1041#else 1042 return calloc(nmemb, size); 1043#endif 1044} 1045 1046/**************************************************************************** 1047 Expand a pointer to be a particular size. 1048 Note that this version of Realloc has an extra parameter that decides 1049 whether to free the passed in storage on allocation failure or if the 1050 new size is zero. 1051 1052 This is designed for use in the typical idiom of : 1053 1054 p = SMB_REALLOC(p, size) 1055 if (!p) { 1056 return error; 1057 } 1058 1059 and not to have to keep track of the old 'p' contents to free later, nor 1060 to worry if the size parameter was zero. In the case where NULL is returned 1061 we guarentee that p has been freed. 1062 1063 If free later semantics are desired, then pass 'free_old_on_error' as False which 1064 guarentees that the old contents are not freed on error, even if size == 0. To use 1065 this idiom use : 1066 1067 tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size); 1068 if (!tmp) { 1069 SAFE_FREE(p); 1070 return error; 1071 } else { 1072 p = tmp; 1073 } 1074 1075 Changes were instigated by Coverity error checking. JRA. 1076****************************************************************************/ 1077 1078void *Realloc(void *p, size_t size, bool free_old_on_error) 1079{ 1080 void *ret=NULL; 1081 1082 if (size == 0) { 1083 if (free_old_on_error) { 1084 SAFE_FREE(p); 1085 } 1086 DEBUG(2,("Realloc asked for 0 bytes\n")); 1087 return NULL; 1088 } 1089 1090#if defined(PARANOID_MALLOC_CHECKER) 1091 if (!p) { 1092 ret = (void *)malloc_(size); 1093 } else { 1094 ret = (void *)realloc_(p,size); 1095 } 1096#else 1097 if (!p) { 1098 ret = (void *)malloc(size); 1099 } else { 1100 ret = (void *)realloc(p,size); 1101 } 1102#endif 1103 1104 if (!ret) { 1105 if (free_old_on_error && p) { 1106 SAFE_FREE(p); 1107 } 1108 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size)); 1109 } 1110 1111 return(ret); 1112} 1113 1114/**************************************************************************** 1115 (Hopefully) efficient array append. 1116****************************************************************************/ 1117 1118void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size, 1119 void *element, void *_array, uint32 *num_elements, 1120 ssize_t *array_size) 1121{ 1122 void **array = (void **)_array; 1123 1124 if (*array_size < 0) { 1125 return; 1126 } 1127 1128 if (*array == NULL) { 1129 if (*array_size == 0) { 1130 *array_size = 128; 1131 } 1132 1133 if (*array_size >= MAX_ALLOC_SIZE/element_size) { 1134 goto error; 1135 } 1136 1137 *array = TALLOC(mem_ctx, element_size * (*array_size)); 1138 if (*array == NULL) { 1139 goto error; 1140 } 1141 } 1142 1143 if (*num_elements == *array_size) { 1144 *array_size *= 2; 1145 1146 if (*array_size >= MAX_ALLOC_SIZE/element_size) { 1147 goto error; 1148 } 1149 1150 *array = TALLOC_REALLOC(mem_ctx, *array, 1151 element_size * (*array_size)); 1152 1153 if (*array == NULL) { 1154 goto error; 1155 } 1156 } 1157 1158 memcpy((char *)(*array) + element_size*(*num_elements), 1159 element, element_size); 1160 *num_elements += 1; 1161 1162 return; 1163 1164 error: 1165 *num_elements = 0; 1166 *array_size = -1; 1167} 1168 1169/**************************************************************************** 1170 Get my own domain name, or "" if we have none. 1171****************************************************************************/ 1172 1173char *get_mydnsdomname(TALLOC_CTX *ctx) 1174{ 1175 const char *domname; 1176 char *p; 1177 1178 domname = get_mydnsfullname(); 1179 if (!domname) { 1180 return NULL; 1181 } 1182 1183 p = strchr_m(domname, '.'); 1184 if (p) { 1185 p++; 1186 return talloc_strdup(ctx, p); 1187 } else { 1188 return talloc_strdup(ctx, ""); 1189 } 1190} 1191 1192/**************************************************************************** 1193 Interpret a protocol description string, with a default. 1194****************************************************************************/ 1195 1196int interpret_protocol(const char *str,int def) 1197{ 1198 if (strequal(str,"NT1")) 1199 return(PROTOCOL_NT1); 1200 if (strequal(str,"LANMAN2")) 1201 return(PROTOCOL_LANMAN2); 1202 if (strequal(str,"LANMAN1")) 1203 return(PROTOCOL_LANMAN1); 1204 if (strequal(str,"CORE")) 1205 return(PROTOCOL_CORE); 1206 if (strequal(str,"COREPLUS")) 1207 return(PROTOCOL_COREPLUS); 1208 if (strequal(str,"CORE+")) 1209 return(PROTOCOL_COREPLUS); 1210 1211 DEBUG(0,("Unrecognised protocol level %s\n",str)); 1212 1213 return(def); 1214} 1215 1216 1217#if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT)) 1218/****************************************************************** 1219 Remove any mount options such as -rsize=2048,wsize=2048 etc. 1220 Based on a fix from <Thomas.Hepper@icem.de>. 1221 Returns a malloc'ed string. 1222*******************************************************************/ 1223 1224static char *strip_mount_options(TALLOC_CTX *ctx, const char *str) 1225{ 1226 if (*str == '-') { 1227 const char *p = str; 1228 while(*p && !isspace(*p)) 1229 p++; 1230 while(*p && isspace(*p)) 1231 p++; 1232 if(*p) { 1233 return talloc_strdup(ctx, p); 1234 } 1235 } 1236 return NULL; 1237} 1238 1239/******************************************************************* 1240 Patch from jkf@soton.ac.uk 1241 Split Luke's automount_server into YP lookup and string splitter 1242 so can easily implement automount_path(). 1243 Returns a malloc'ed string. 1244*******************************************************************/ 1245 1246#ifdef WITH_NISPLUS_HOME 1247char *automount_lookup(TALLOC_CTX *ctx, const char *user_name) 1248{ 1249 char *value = NULL; 1250 1251 char *nis_map = (char *)lp_nis_home_map_name(); 1252 1253 char buffer[NIS_MAXATTRVAL + 1]; 1254 nis_result *result; 1255 nis_object *object; 1256 entry_obj *entry; 1257 1258 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map); 1259 DEBUG(5, ("NIS+ querystring: %s\n", buffer)); 1260 1261 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) { 1262 if (result->status != NIS_SUCCESS) { 1263 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status))); 1264 } else { 1265 object = result->objects.objects_val; 1266 if (object->zo_data.zo_type == ENTRY_OBJ) { 1267 entry = &object->zo_data.objdata_u.en_data; 1268 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type)); 1269 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val)); 1270 1271 value = talloc_strdup(ctx, 1272 entry->en_cols.en_cols_val[1].ec_value.ec_value_val); 1273 if (!value) { 1274 nis_freeresult(result); 1275 return NULL; 1276 } 1277 value = talloc_string_sub(ctx, 1278 value, 1279 "&", 1280 user_name); 1281 } 1282 } 1283 } 1284 nis_freeresult(result); 1285 1286 if (value) { 1287 value = strip_mount_options(ctx, value); 1288 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", 1289 user_name, value)); 1290 } 1291 return value; 1292} 1293#else /* WITH_NISPLUS_HOME */ 1294 1295char *automount_lookup(TALLOC_CTX *ctx, const char *user_name) 1296{ 1297 char *value = NULL; 1298 1299 int nis_error; /* returned by yp all functions */ 1300 char *nis_result; /* yp_match inits this */ 1301 int nis_result_len; /* and set this */ 1302 char *nis_domain; /* yp_get_default_domain inits this */ 1303 char *nis_map = (char *)lp_nis_home_map_name(); 1304 1305 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) { 1306 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error))); 1307 return NULL; 1308 } 1309 1310 DEBUG(5, ("NIS Domain: %s\n", nis_domain)); 1311 1312 if ((nis_error = yp_match(nis_domain, nis_map, user_name, 1313 strlen(user_name), &nis_result, 1314 &nis_result_len)) == 0) { 1315 value = talloc_strdup(ctx, nis_result); 1316 if (!value) { 1317 return NULL; 1318 } 1319 value = strip_mount_options(ctx, value); 1320 } else if(nis_error == YPERR_KEY) { 1321 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n", 1322 user_name, nis_map)); 1323 DEBUG(3, ("using defaults for server and home directory\n")); 1324 } else { 1325 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n", 1326 yperr_string(nis_error), user_name, nis_map)); 1327 } 1328 1329 if (value) { 1330 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value)); 1331 } 1332 return value; 1333} 1334#endif /* WITH_NISPLUS_HOME */ 1335#endif 1336 1337/**************************************************************************** 1338 Check if a process exists. Does this work on all unixes? 1339****************************************************************************/ 1340 1341bool process_exists(const struct server_id pid) 1342{ 1343 if (procid_is_me(&pid)) { 1344 return True; 1345 } 1346 1347 if (procid_is_local(&pid)) { 1348 return (kill(pid.pid,0) == 0 || errno != ESRCH); 1349 } 1350 1351#ifdef CLUSTER_SUPPORT 1352 return ctdbd_process_exists(messaging_ctdbd_connection(), pid.vnn, 1353 pid.pid); 1354#else 1355 return False; 1356#endif 1357} 1358 1359/******************************************************************* 1360 Convert a uid into a user name. 1361********************************************************************/ 1362 1363const char *uidtoname(uid_t uid) 1364{ 1365 TALLOC_CTX *ctx = talloc_tos(); 1366 char *name = NULL; 1367 struct passwd *pass = NULL; 1368 1369 pass = getpwuid_alloc(ctx,uid); 1370 if (pass) { 1371 name = talloc_strdup(ctx,pass->pw_name); 1372 TALLOC_FREE(pass); 1373 } else { 1374 name = talloc_asprintf(ctx, 1375 "%ld", 1376 (long int)uid); 1377 } 1378 return name; 1379} 1380 1381/******************************************************************* 1382 Convert a gid into a group name. 1383********************************************************************/ 1384 1385char *gidtoname(gid_t gid) 1386{ 1387 struct group *grp; 1388 1389 grp = getgrgid(gid); 1390 if (grp) { 1391 return talloc_strdup(talloc_tos(), grp->gr_name); 1392 } 1393 else { 1394 return talloc_asprintf(talloc_tos(), 1395 "%d", 1396 (int)gid); 1397 } 1398} 1399 1400/******************************************************************* 1401 Convert a user name into a uid. 1402********************************************************************/ 1403 1404uid_t nametouid(const char *name) 1405{ 1406 struct passwd *pass; 1407 char *p; 1408 uid_t u; 1409 1410 pass = Get_Pwnam_alloc(talloc_autofree_context(), name); 1411 if (pass) { 1412 u = pass->pw_uid; 1413 TALLOC_FREE(pass); 1414 return u; 1415 } 1416 1417 u = (uid_t)strtol(name, &p, 0); 1418 if ((p != name) && (*p == '\0')) 1419 return u; 1420 1421 return (uid_t)-1; 1422} 1423 1424/******************************************************************* 1425 Convert a name to a gid_t if possible. Return -1 if not a group. 1426********************************************************************/ 1427 1428gid_t nametogid(const char *name) 1429{ 1430 struct group *grp; 1431 char *p; 1432 gid_t g; 1433 1434 g = (gid_t)strtol(name, &p, 0); 1435 if ((p != name) && (*p == '\0')) 1436 return g; 1437 1438 grp = sys_getgrnam(name); 1439 if (grp) 1440 return(grp->gr_gid); 1441 return (gid_t)-1; 1442} 1443 1444/******************************************************************* 1445 Something really nasty happened - panic ! 1446********************************************************************/ 1447 1448void smb_panic(const char *const why) 1449{ 1450 char *cmd; 1451 int result; 1452 1453#ifdef DEVELOPER 1454 { 1455 1456 if (global_clobber_region_function) { 1457 DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n", 1458 global_clobber_region_function, 1459 global_clobber_region_line)); 1460 } 1461 } 1462#endif 1463 1464 DEBUG(0,("PANIC (pid %llu): %s\n", 1465 (unsigned long long)sys_getpid(), why)); 1466 log_stack_trace(); 1467 1468 cmd = lp_panic_action(); 1469 if (cmd && *cmd) { 1470 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd)); 1471 result = system(cmd); 1472 1473 if (result == -1) 1474 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n", 1475 strerror(errno))); 1476 else 1477 DEBUG(0, ("smb_panic(): action returned status %d\n", 1478 WEXITSTATUS(result))); 1479 } 1480 1481 dump_core(); 1482} 1483 1484/******************************************************************* 1485 Print a backtrace of the stack to the debug log. This function 1486 DELIBERATELY LEAKS MEMORY. The expectation is that you should 1487 exit shortly after calling it. 1488********************************************************************/ 1489 1490#ifdef HAVE_LIBUNWIND_H 1491#include <libunwind.h> 1492#endif 1493 1494#ifdef HAVE_EXECINFO_H 1495#include <execinfo.h> 1496#endif 1497 1498#ifdef HAVE_LIBEXC_H 1499#include <libexc.h> 1500#endif 1501 1502void log_stack_trace(void) 1503{ 1504#ifdef HAVE_LIBUNWIND 1505 /* Try to use libunwind before any other technique since on ia64 1506 * libunwind correctly walks the stack in more circumstances than 1507 * backtrace. 1508 */ 1509 unw_cursor_t cursor; 1510 unw_context_t uc; 1511 unsigned i = 0; 1512 1513 char procname[256]; 1514 unw_word_t ip, sp, off; 1515 1516 procname[sizeof(procname) - 1] = '\0'; 1517 1518 if (unw_getcontext(&uc) != 0) { 1519 goto libunwind_failed; 1520 } 1521 1522 if (unw_init_local(&cursor, &uc) != 0) { 1523 goto libunwind_failed; 1524 } 1525 1526 DEBUG(0, ("BACKTRACE:\n")); 1527 1528 do { 1529 ip = sp = 0; 1530 unw_get_reg(&cursor, UNW_REG_IP, &ip); 1531 unw_get_reg(&cursor, UNW_REG_SP, &sp); 1532 1533 switch (unw_get_proc_name(&cursor, 1534 procname, sizeof(procname) - 1, &off) ) { 1535 case 0: 1536 /* Name found. */ 1537 case -UNW_ENOMEM: 1538 /* Name truncated. */ 1539 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n", 1540 i, procname, (long long)off, 1541 (long long)ip, (long long) sp)); 1542 break; 1543 default: 1544 /* case -UNW_ENOINFO: */ 1545 /* case -UNW_EUNSPEC: */ 1546 /* No symbol name found. */ 1547 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n", 1548 i, "<unknown symbol>", 1549 (long long)ip, (long long) sp)); 1550 } 1551 ++i; 1552 } while (unw_step(&cursor) > 0); 1553 1554 return; 1555 1556libunwind_failed: 1557 DEBUG(0, ("unable to produce a stack trace with libunwind\n")); 1558 1559#elif HAVE_BACKTRACE_SYMBOLS 1560 void *backtrace_stack[BACKTRACE_STACK_SIZE]; 1561 size_t backtrace_size; 1562 char **backtrace_strings; 1563 1564 /* get the backtrace (stack frames) */ 1565 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE); 1566 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size); 1567 1568 DEBUG(0, ("BACKTRACE: %lu stack frames:\n", 1569 (unsigned long)backtrace_size)); 1570 1571 if (backtrace_strings) { 1572 int i; 1573 1574 for (i = 0; i < backtrace_size; i++) 1575 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i])); 1576 1577 /* Leak the backtrace_strings, rather than risk what free() might do */ 1578 } 1579 1580#elif HAVE_LIBEXC 1581 1582 /* The IRIX libexc library provides an API for unwinding the stack. See 1583 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but 1584 * since we are about to abort anyway, it hardly matters. 1585 */ 1586 1587#define NAMESIZE 32 /* Arbitrary */ 1588 1589 __uint64_t addrs[BACKTRACE_STACK_SIZE]; 1590 char * names[BACKTRACE_STACK_SIZE]; 1591 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE]; 1592 1593 int i; 1594 int levels; 1595 1596 ZERO_ARRAY(addrs); 1597 ZERO_ARRAY(names); 1598 ZERO_ARRAY(namebuf); 1599 1600 /* We need to be root so we can open our /proc entry to walk 1601 * our stack. It also helps when we want to dump core. 1602 */ 1603 become_root(); 1604 1605 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) { 1606 names[i] = namebuf + (i * NAMESIZE); 1607 } 1608 1609 levels = trace_back_stack(0, addrs, names, 1610 BACKTRACE_STACK_SIZE, NAMESIZE - 1); 1611 1612 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels)); 1613 for (i = 0; i < levels; i++) { 1614 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i])); 1615 } 1616#undef NAMESIZE 1617 1618#else 1619 DEBUG(0, ("unable to produce a stack trace on this platform\n")); 1620#endif 1621} 1622 1623/******************************************************************* 1624 A readdir wrapper which just returns the file name. 1625 ********************************************************************/ 1626 1627const char *readdirname(SMB_STRUCT_DIR *p) 1628{ 1629 SMB_STRUCT_DIRENT *ptr; 1630 char *dname; 1631 1632 if (!p) 1633 return(NULL); 1634 1635 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p); 1636 if (!ptr) 1637 return(NULL); 1638 1639 dname = ptr->d_name; 1640 1641#ifdef NEXT2 1642 if (telldir(p) < 0) 1643 return(NULL); 1644#endif 1645 1646#ifdef HAVE_BROKEN_READDIR_NAME 1647 /* using /usr/ucb/cc is BAD */ 1648 dname = dname - 2; 1649#endif 1650 1651 return talloc_strdup(talloc_tos(), dname); 1652} 1653 1654/******************************************************************* 1655 Utility function used to decide if the last component 1656 of a path matches a (possibly wildcarded) entry in a namelist. 1657********************************************************************/ 1658 1659bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive) 1660{ 1661 const char *last_component; 1662 1663 /* if we have no list it's obviously not in the path */ 1664 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) { 1665 return False; 1666 } 1667 1668 DEBUG(8, ("is_in_path: %s\n", name)); 1669 1670 /* Get the last component of the unix name. */ 1671 last_component = strrchr_m(name, '/'); 1672 if (!last_component) { 1673 last_component = name; 1674 } else { 1675 last_component++; /* Go past '/' */ 1676 } 1677 1678 for(; namelist->name != NULL; namelist++) { 1679 if(namelist->is_wild) { 1680 if (mask_match(last_component, namelist->name, case_sensitive)) { 1681 DEBUG(8,("is_in_path: mask match succeeded\n")); 1682 return True; 1683 } 1684 } else { 1685 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))|| 1686 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) { 1687 DEBUG(8,("is_in_path: match succeeded\n")); 1688 return True; 1689 } 1690 } 1691 } 1692 DEBUG(8,("is_in_path: match not found\n")); 1693 return False; 1694} 1695 1696/******************************************************************* 1697 Strip a '/' separated list into an array of 1698 name_compare_enties structures suitable for 1699 passing to is_in_path(). We do this for 1700 speed so we can pre-parse all the names in the list 1701 and don't do it for each call to is_in_path(). 1702 namelist is modified here and is assumed to be 1703 a copy owned by the caller. 1704 We also check if the entry contains a wildcard to 1705 remove a potentially expensive call to mask_match 1706 if possible. 1707********************************************************************/ 1708 1709void set_namearray(name_compare_entry **ppname_array, const char *namelist) 1710{ 1711 char *name_end; 1712 char *nameptr = (char *)namelist; 1713 int num_entries = 0; 1714 int i; 1715 1716 (*ppname_array) = NULL; 1717 1718 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0'))) 1719 return; 1720 1721 /* We need to make two passes over the string. The 1722 first to count the number of elements, the second 1723 to split it. 1724 */ 1725 1726 while(*nameptr) { 1727 if ( *nameptr == '/' ) { 1728 /* cope with multiple (useless) /s) */ 1729 nameptr++; 1730 continue; 1731 } 1732 /* anything left? */ 1733 if ( *nameptr == '\0' ) 1734 break; 1735 1736 /* find the next '/' or consume remaining */ 1737 name_end = strchr_m(nameptr, '/'); 1738 if (name_end == NULL) 1739 name_end = (char *)nameptr + strlen(nameptr); 1740 1741 /* next segment please */ 1742 nameptr = name_end + 1; 1743 num_entries++; 1744 } 1745 1746 if(num_entries == 0) 1747 return; 1748 1749 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) { 1750 DEBUG(0,("set_namearray: malloc fail\n")); 1751 return; 1752 } 1753 1754 /* Now copy out the names */ 1755 nameptr = (char *)namelist; 1756 i = 0; 1757 while(*nameptr) { 1758 if ( *nameptr == '/' ) { 1759 /* cope with multiple (useless) /s) */ 1760 nameptr++; 1761 continue; 1762 } 1763 /* anything left? */ 1764 if ( *nameptr == '\0' ) 1765 break; 1766 1767 /* find the next '/' or consume remaining */ 1768 name_end = strchr_m(nameptr, '/'); 1769 if (name_end) 1770 *name_end = '\0'; 1771 else 1772 name_end = nameptr + strlen(nameptr); 1773 1774 (*ppname_array)[i].is_wild = ms_has_wild(nameptr); 1775 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) { 1776 DEBUG(0,("set_namearray: malloc fail (1)\n")); 1777 return; 1778 } 1779 1780 /* next segment please */ 1781 nameptr = name_end + 1; 1782 i++; 1783 } 1784 1785 (*ppname_array)[i].name = NULL; 1786 1787 return; 1788} 1789 1790/**************************************************************************** 1791 Routine to free a namearray. 1792****************************************************************************/ 1793 1794void free_namearray(name_compare_entry *name_array) 1795{ 1796 int i; 1797 1798 if(name_array == NULL) 1799 return; 1800 1801 for(i=0; name_array[i].name!=NULL; i++) 1802 SAFE_FREE(name_array[i].name); 1803 SAFE_FREE(name_array); 1804} 1805 1806#undef DBGC_CLASS 1807#define DBGC_CLASS DBGC_LOCKING 1808 1809/**************************************************************************** 1810 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping 1811 is dealt with in posix.c 1812 Returns True if we have information regarding this lock region (and returns 1813 F_UNLCK in *ptype if the region is unlocked). False if the call failed. 1814****************************************************************************/ 1815 1816bool fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid) 1817{ 1818 SMB_STRUCT_FLOCK lock; 1819 int ret; 1820 1821 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n", 1822 fd,(double)*poffset,(double)*pcount,*ptype)); 1823 1824 lock.l_type = *ptype; 1825 lock.l_whence = SEEK_SET; 1826 lock.l_start = *poffset; 1827 lock.l_len = *pcount; 1828 lock.l_pid = 0; 1829 1830 ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock); 1831 1832 if (ret == -1) { 1833 int sav = errno; 1834 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n", 1835 (double)*poffset,(double)*pcount,*ptype,strerror(errno))); 1836 errno = sav; 1837 return False; 1838 } 1839 1840 *ptype = lock.l_type; 1841 *poffset = lock.l_start; 1842 *pcount = lock.l_len; 1843 *ppid = lock.l_pid; 1844 1845 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n", 1846 fd, (int)lock.l_type, (unsigned int)lock.l_pid)); 1847 return True; 1848} 1849 1850#undef DBGC_CLASS 1851#define DBGC_CLASS DBGC_ALL 1852 1853/******************************************************************* 1854 Is the name specified one of my netbios names. 1855 Returns true if it is equal, false otherwise. 1856********************************************************************/ 1857 1858bool is_myname(const char *s) 1859{ 1860 int n; 1861 bool ret = False; 1862 1863 for (n=0; my_netbios_names(n); n++) { 1864 if (strequal(my_netbios_names(n), s)) { 1865 ret=True; 1866 break; 1867 } 1868 } 1869 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret)); 1870 return(ret); 1871} 1872 1873/******************************************************************* 1874 Is the name specified our workgroup/domain. 1875 Returns true if it is equal, false otherwise. 1876********************************************************************/ 1877 1878bool is_myworkgroup(const char *s) 1879{ 1880 bool ret = False; 1881 1882 if (strequal(s, lp_workgroup())) { 1883 ret=True; 1884 } 1885 1886 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret)); 1887 return(ret); 1888} 1889 1890/******************************************************************* 1891 we distinguish between 2K and XP by the "Native Lan Manager" string 1892 WinXP => "Windows 2002 5.1" 1893 WinXP 64bit => "Windows XP 5.2" 1894 Win2k => "Windows 2000 5.0" 1895 NT4 => "Windows NT 4.0" 1896 Win9x => "Windows 4.0" 1897 Windows 2003 doesn't set the native lan manager string but 1898 they do set the domain to "Windows 2003 5.2" (probably a bug). 1899********************************************************************/ 1900 1901void ra_lanman_string( const char *native_lanman ) 1902{ 1903 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 ) 1904 set_remote_arch( RA_WINXP ); 1905 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 ) 1906 set_remote_arch( RA_WINXP64 ); 1907 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 ) 1908 set_remote_arch( RA_WIN2K3 ); 1909} 1910 1911static const char *remote_arch_str; 1912 1913const char *get_remote_arch_str(void) 1914{ 1915 if (!remote_arch_str) { 1916 return "UNKNOWN"; 1917 } 1918 return remote_arch_str; 1919} 1920 1921/******************************************************************* 1922 Set the horrid remote_arch string based on an enum. 1923********************************************************************/ 1924 1925void set_remote_arch(enum remote_arch_types type) 1926{ 1927 ra_type = type; 1928 switch( type ) { 1929 case RA_WFWG: 1930 remote_arch_str = "WfWg"; 1931 break; 1932 case RA_OS2: 1933 remote_arch_str = "OS2"; 1934 break; 1935 case RA_WIN95: 1936 remote_arch_str = "Win95"; 1937 break; 1938 case RA_WINNT: 1939 remote_arch_str = "WinNT"; 1940 break; 1941 case RA_WIN2K: 1942 remote_arch_str = "Win2K"; 1943 break; 1944 case RA_WINXP: 1945 remote_arch_str = "WinXP"; 1946 break; 1947 case RA_WINXP64: 1948 remote_arch_str = "WinXP64"; 1949 break; 1950 case RA_WIN2K3: 1951 remote_arch_str = "Win2K3"; 1952 break; 1953 case RA_VISTA: 1954 remote_arch_str = "Vista"; 1955 break; 1956 case RA_SAMBA: 1957 remote_arch_str = "Samba"; 1958 break; 1959 case RA_CIFSFS: 1960 remote_arch_str = "CIFSFS"; 1961 break; 1962 default: 1963 ra_type = RA_UNKNOWN; 1964 remote_arch_str = "UNKNOWN"; 1965 break; 1966 } 1967 1968 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n", 1969 remote_arch_str)); 1970} 1971 1972/******************************************************************* 1973 Get the remote_arch type. 1974********************************************************************/ 1975 1976enum remote_arch_types get_remote_arch(void) 1977{ 1978 return ra_type; 1979} 1980 1981const char *tab_depth(int level, int depth) 1982{ 1983 if( CHECK_DEBUGLVL(level) ) { 1984 dbgtext("%*s", depth*4, ""); 1985 } 1986 return ""; 1987} 1988 1989/***************************************************************************** 1990 Provide a checksum on a string 1991 1992 Input: s - the null-terminated character string for which the checksum 1993 will be calculated. 1994 1995 Output: The checksum value calculated for s. 1996*****************************************************************************/ 1997 1998int str_checksum(const char *s) 1999{ 2000 int res = 0; 2001 int c; 2002 int i=0; 2003 2004 while(*s) { 2005 c = *s; 2006 res ^= (c << (i % 15)) ^ (c >> (15-(i%15))); 2007 s++; 2008 i++; 2009 } 2010 return(res); 2011} 2012 2013/***************************************************************** 2014 Zero a memory area then free it. Used to catch bugs faster. 2015*****************************************************************/ 2016 2017void zero_free(void *p, size_t size) 2018{ 2019 memset(p, 0, size); 2020 SAFE_FREE(p); 2021} 2022 2023/***************************************************************** 2024 Set our open file limit to a requested max and return the limit. 2025*****************************************************************/ 2026 2027int set_maxfiles(int requested_max) 2028{ 2029#if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)) 2030 struct rlimit rlp; 2031 int saved_current_limit; 2032 2033 if(getrlimit(RLIMIT_NOFILE, &rlp)) { 2034 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n", 2035 strerror(errno) )); 2036 /* just guess... */ 2037 return requested_max; 2038 } 2039 2040 /* 2041 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to 2042 * account for the extra fd we need 2043 * as well as the log files and standard 2044 * handles etc. Save the limit we want to set in case 2045 * we are running on an OS that doesn't support this limit (AIX) 2046 * which always returns RLIM_INFINITY for rlp.rlim_max. 2047 */ 2048 2049 /* Try raising the hard (max) limit to the requested amount. */ 2050 2051#if defined(RLIM_INFINITY) 2052 if (rlp.rlim_max != RLIM_INFINITY) { 2053 int orig_max = rlp.rlim_max; 2054 2055 if ( rlp.rlim_max < requested_max ) 2056 rlp.rlim_max = requested_max; 2057 2058 /* This failing is not an error - many systems (Linux) don't 2059 support our default request of 10,000 open files. JRA. */ 2060 2061 if(setrlimit(RLIMIT_NOFILE, &rlp)) { 2062 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n", 2063 (int)rlp.rlim_max, strerror(errno) )); 2064 2065 /* Set failed - restore original value from get. */ 2066 rlp.rlim_max = orig_max; 2067 } 2068 } 2069#endif 2070 2071 /* Now try setting the soft (current) limit. */ 2072 2073 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max); 2074 2075 if(setrlimit(RLIMIT_NOFILE, &rlp)) { 2076 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n", 2077 (int)rlp.rlim_cur, strerror(errno) )); 2078 /* just guess... */ 2079 return saved_current_limit; 2080 } 2081 2082 if(getrlimit(RLIMIT_NOFILE, &rlp)) { 2083 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n", 2084 strerror(errno) )); 2085 /* just guess... */ 2086 return saved_current_limit; 2087 } 2088 2089#if defined(RLIM_INFINITY) 2090 if(rlp.rlim_cur == RLIM_INFINITY) 2091 return saved_current_limit; 2092#endif 2093 2094 if((int)rlp.rlim_cur > saved_current_limit) 2095 return saved_current_limit; 2096 2097 return rlp.rlim_cur; 2098#else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */ 2099 /* 2100 * No way to know - just guess... 2101 */ 2102 return requested_max; 2103#endif 2104} 2105 2106/***************************************************************** 2107 malloc that aborts with smb_panic on fail or zero size. 2108 *****************************************************************/ 2109 2110void *smb_xmalloc_array(size_t size, unsigned int count) 2111{ 2112 void *p; 2113 if (size == 0) { 2114 smb_panic("smb_xmalloc_array: called with zero size"); 2115 } 2116 if (count >= MAX_ALLOC_SIZE/size) { 2117 smb_panic("smb_xmalloc_array: alloc size too large"); 2118 } 2119 if ((p = SMB_MALLOC(size*count)) == NULL) { 2120 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n", 2121 (unsigned long)size, (unsigned long)count)); 2122 smb_panic("smb_xmalloc_array: malloc failed"); 2123 } 2124 return p; 2125} 2126 2127/* 2128 vasprintf that aborts on malloc fail 2129*/ 2130 2131 int smb_xvasprintf(char **ptr, const char *format, va_list ap) 2132{ 2133 int n; 2134 va_list ap2; 2135 2136 va_copy(ap2, ap); 2137 2138 n = vasprintf(ptr, format, ap2); 2139 va_end(ap2); 2140 if (n == -1 || ! *ptr) { 2141 smb_panic("smb_xvasprintf: out of memory"); 2142 } 2143 return n; 2144} 2145 2146/***************************************************************** 2147 Get local hostname and cache result. 2148*****************************************************************/ 2149 2150char *myhostname(void) 2151{ 2152 static char *ret; 2153 if (ret == NULL) { 2154 /* This is cached forever so 2155 * use talloc_autofree_context() ctx. */ 2156 ret = get_myname(talloc_autofree_context()); 2157 } 2158 return ret; 2159} 2160 2161/** 2162 * @brief Returns an absolute path to a file concatenating the provided 2163 * @a rootpath and @a basename 2164 * 2165 * @param name Filename, relative to @a rootpath 2166 * 2167 * @retval Pointer to a string containing the full path. 2168 **/ 2169 2170static char *xx_path(const char *name, const char *rootpath) 2171{ 2172 char *fname = NULL; 2173 2174 fname = talloc_strdup(talloc_tos(), rootpath); 2175 if (!fname) { 2176 return NULL; 2177 } 2178 trim_string(fname,"","/"); 2179 2180 if (!directory_exist(fname)) { 2181 if (!mkdir(fname,0755)) 2182 DEBUG(1, ("Unable to create directory %s for file %s. " 2183 "Error was %s\n", fname, name, strerror(errno))); 2184 } 2185 2186 return talloc_asprintf(talloc_tos(), 2187 "%s/%s", 2188 fname, 2189 name); 2190} 2191 2192/** 2193 * @brief Returns an absolute path to a file in the Samba lock directory. 2194 * 2195 * @param name File to find, relative to LOCKDIR. 2196 * 2197 * @retval Pointer to a talloc'ed string containing the full path. 2198 **/ 2199 2200char *lock_path(const char *name) 2201{ 2202 return xx_path(name, lp_lockdir()); 2203} 2204 2205/** 2206 * @brief Returns an absolute path to a file in the Samba pid directory. 2207 * 2208 * @param name File to find, relative to PIDDIR. 2209 * 2210 * @retval Pointer to a talloc'ed string containing the full path. 2211 **/ 2212 2213char *pid_path(const char *name) 2214{ 2215 return xx_path(name, lp_piddir()); 2216} 2217 2218/** 2219 * @brief Returns an absolute path to a file in the Samba lib directory. 2220 * 2221 * @param name File to find, relative to LIBDIR. 2222 * 2223 * @retval Pointer to a string containing the full path. 2224 **/ 2225 2226char *lib_path(const char *name) 2227{ 2228 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name); 2229} 2230 2231/** 2232 * @brief Returns an absolute path to a file in the Samba modules directory. 2233 * 2234 * @param name File to find, relative to MODULESDIR. 2235 * 2236 * @retval Pointer to a string containing the full path. 2237 **/ 2238 2239char *modules_path(const char *name) 2240{ 2241 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name); 2242} 2243 2244/** 2245 * @brief Returns an absolute path to a file in the Samba data directory. 2246 * 2247 * @param name File to find, relative to CODEPAGEDIR. 2248 * 2249 * @retval Pointer to a talloc'ed string containing the full path. 2250 **/ 2251 2252char *data_path(const char *name) 2253{ 2254 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name); 2255} 2256 2257/** 2258 * @brief Returns an absolute path to a file in the Samba state directory. 2259 * 2260 * @param name File to find, relative to STATEDIR. 2261 * 2262 * @retval Pointer to a talloc'ed string containing the full path. 2263 **/ 2264 2265char *state_path(const char *name) 2266{ 2267 return xx_path(name, lp_statedir()); 2268} 2269 2270/** 2271 * @brief Returns an absolute path to a file in the Samba cache directory. 2272 * 2273 * @param name File to find, relative to CACHEDIR. 2274 * 2275 * @retval Pointer to a talloc'ed string containing the full path. 2276 **/ 2277 2278char *cache_path(const char *name) 2279{ 2280 return xx_path(name, lp_cachedir()); 2281} 2282 2283/** 2284 * @brief Returns the platform specific shared library extension. 2285 * 2286 * @retval Pointer to a const char * containing the extension. 2287 **/ 2288 2289const char *shlib_ext(void) 2290{ 2291 return get_dyn_SHLIBEXT(); 2292} 2293 2294/******************************************************************* 2295 Given a filename - get its directory name 2296********************************************************************/ 2297 2298bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent, 2299 const char **name) 2300{ 2301 char *p; 2302 ptrdiff_t len; 2303 2304 p = strrchr_m(dir, '/'); /* Find final '/', if any */ 2305 2306 if (p == NULL) { 2307 if (!(*parent = talloc_strdup(mem_ctx, "."))) { 2308 return False; 2309 } 2310 if (name) { 2311 *name = dir; 2312 } 2313 return True; 2314 } 2315 2316 len = p-dir; 2317 2318 if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) { 2319 return False; 2320 } 2321 (*parent)[len] = '\0'; 2322 2323 if (name) { 2324 *name = p+1; 2325 } 2326 return True; 2327} 2328 2329/******************************************************************* 2330 Determine if a pattern contains any Microsoft wildcard characters. 2331*******************************************************************/ 2332 2333bool ms_has_wild(const char *s) 2334{ 2335 char c; 2336 2337 if (lp_posix_pathnames()) { 2338 /* With posix pathnames no characters are wild. */ 2339 return False; 2340 } 2341 2342 while ((c = *s++)) { 2343 switch (c) { 2344 case '*': 2345 case '?': 2346 case '<': 2347 case '>': 2348 case '"': 2349 return True; 2350 } 2351 } 2352 return False; 2353} 2354 2355bool ms_has_wild_w(const smb_ucs2_t *s) 2356{ 2357 smb_ucs2_t c; 2358 if (!s) return False; 2359 while ((c = *s++)) { 2360 switch (c) { 2361 case UCS2_CHAR('*'): 2362 case UCS2_CHAR('?'): 2363 case UCS2_CHAR('<'): 2364 case UCS2_CHAR('>'): 2365 case UCS2_CHAR('"'): 2366 return True; 2367 } 2368 } 2369 return False; 2370} 2371 2372/******************************************************************* 2373 A wrapper that handles case sensitivity and the special handling 2374 of the ".." name. 2375*******************************************************************/ 2376 2377bool mask_match(const char *string, const char *pattern, bool is_case_sensitive) 2378{ 2379 if (strcmp(string,"..") == 0) 2380 string = "."; 2381 if (strcmp(pattern,".") == 0) 2382 return False; 2383 2384 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0; 2385} 2386 2387/******************************************************************* 2388 A wrapper that handles case sensitivity and the special handling 2389 of the ".." name. Varient that is only called by old search code which requires 2390 pattern translation. 2391*******************************************************************/ 2392 2393bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive) 2394{ 2395 if (strcmp(string,"..") == 0) 2396 string = "."; 2397 if (strcmp(pattern,".") == 0) 2398 return False; 2399 2400 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0; 2401} 2402 2403/******************************************************************* 2404 A wrapper that handles a list of patters and calls mask_match() 2405 on each. Returns True if any of the patterns match. 2406*******************************************************************/ 2407 2408bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive) 2409{ 2410 while (listLen-- > 0) { 2411 if (mask_match(string, *list++, is_case_sensitive)) 2412 return True; 2413 } 2414 return False; 2415} 2416 2417/********************************************************* 2418 Recursive routine that is called by unix_wild_match. 2419*********************************************************/ 2420 2421static bool unix_do_match(const char *regexp, const char *str) 2422{ 2423 const char *p; 2424 2425 for( p = regexp; *p && *str; ) { 2426 2427 switch(*p) { 2428 case '?': 2429 str++; 2430 p++; 2431 break; 2432 2433 case '*': 2434 2435 /* 2436 * Look for a character matching 2437 * the one after the '*'. 2438 */ 2439 p++; 2440 if(!*p) 2441 return true; /* Automatic match */ 2442 while(*str) { 2443 2444 while(*str && (*p != *str)) 2445 str++; 2446 2447 /* 2448 * Patch from weidel@multichart.de. In the case of the regexp 2449 * '*XX*' we want to ensure there are at least 2 'X' characters 2450 * in the string after the '*' for a match to be made. 2451 */ 2452 2453 { 2454 int matchcount=0; 2455 2456 /* 2457 * Eat all the characters that match, but count how many there were. 2458 */ 2459 2460 while(*str && (*p == *str)) { 2461 str++; 2462 matchcount++; 2463 } 2464 2465 /* 2466 * Now check that if the regexp had n identical characters that 2467 * matchcount had at least that many matches. 2468 */ 2469 2470 while ( *(p+1) && (*(p+1) == *p)) { 2471 p++; 2472 matchcount--; 2473 } 2474 2475 if ( matchcount <= 0 ) 2476 return false; 2477 } 2478 2479 str--; /* We've eaten the match char after the '*' */ 2480 2481 if(unix_do_match(p, str)) 2482 return true; 2483 2484 if(!*str) 2485 return false; 2486 else 2487 str++; 2488 } 2489 return false; 2490 2491 default: 2492 if(*str != *p) 2493 return false; 2494 str++; 2495 p++; 2496 break; 2497 } 2498 } 2499 2500 if(!*p && !*str) 2501 return true; 2502 2503 if (!*p && str[0] == '.' && str[1] == 0) 2504 return true; 2505 2506 if (!*str && *p == '?') { 2507 while (*p == '?') 2508 p++; 2509 return(!*p); 2510 } 2511 2512 if(!*str && (*p == '*' && p[1] == '\0')) 2513 return true; 2514 2515 return false; 2516} 2517 2518/******************************************************************* 2519 Simple case insensitive interface to a UNIX wildcard matcher. 2520 Returns True if match, False if not. 2521*******************************************************************/ 2522 2523bool unix_wild_match(const char *pattern, const char *string) 2524{ 2525 TALLOC_CTX *ctx = talloc_stackframe(); 2526 char *p2; 2527 char *s2; 2528 char *p; 2529 bool ret = false; 2530 2531 p2 = talloc_strdup(ctx,pattern); 2532 s2 = talloc_strdup(ctx,string); 2533 if (!p2 || !s2) { 2534 TALLOC_FREE(ctx); 2535 return false; 2536 } 2537 strlower_m(p2); 2538 strlower_m(s2); 2539 2540 /* Remove any *? and ** from the pattern as they are meaningless */ 2541 for(p = p2; *p; p++) { 2542 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) { 2543 memmove(&p[1], &p[2], strlen(&p[2])+1); 2544 } 2545 } 2546 2547 if (strequal(p2,"*")) { 2548 TALLOC_FREE(ctx); 2549 return true; 2550 } 2551 2552 ret = unix_do_match(p2, s2); 2553 TALLOC_FREE(ctx); 2554 return ret; 2555} 2556 2557/********************************************************************** 2558 Converts a name to a fully qualified domain name. 2559 Returns true if lookup succeeded, false if not (then fqdn is set to name) 2560 Note we deliberately use gethostbyname here, not getaddrinfo as we want 2561 to examine the h_aliases and I don't know how to do that with getaddrinfo. 2562***********************************************************************/ 2563 2564bool name_to_fqdn(fstring fqdn, const char *name) 2565{ 2566 char *full = NULL; 2567 struct hostent *hp = gethostbyname(name); 2568 2569 if (!hp || !hp->h_name || !*hp->h_name) { 2570 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name)); 2571 fstrcpy(fqdn, name); 2572 return false; 2573 } 2574 2575 /* Find out if the fqdn is returned as an alias 2576 * to cope with /etc/hosts files where the first 2577 * name is not the fqdn but the short name */ 2578 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) { 2579 int i; 2580 for (i = 0; hp->h_aliases[i]; i++) { 2581 if (strchr_m(hp->h_aliases[i], '.')) { 2582 full = hp->h_aliases[i]; 2583 break; 2584 } 2585 } 2586 } 2587 if (full && (StrCaseCmp(full, "localhost.localdomain") == 0)) { 2588 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n")); 2589 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n")); 2590 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n")); 2591 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n")); 2592 full = hp->h_name; 2593 } 2594 if (!full) { 2595 full = hp->h_name; 2596 } 2597 2598 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full)); 2599 fstrcpy(fqdn, full); 2600 return true; 2601} 2602 2603/********************************************************************** 2604 Append a DATA_BLOB to a talloc'ed object 2605***********************************************************************/ 2606 2607void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob) 2608{ 2609 size_t old_size = 0; 2610 char *result; 2611 2612 if (blob.length == 0) { 2613 return buf; 2614 } 2615 2616 if (buf != NULL) { 2617 old_size = talloc_get_size(buf); 2618 } 2619 2620 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length); 2621 if (result == NULL) { 2622 return NULL; 2623 } 2624 2625 memcpy(result + old_size, blob.data, blob.length); 2626 return result; 2627} 2628 2629uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options) 2630{ 2631 switch (share_access & ~FILE_SHARE_DELETE) { 2632 case FILE_SHARE_NONE: 2633 return DENY_ALL; 2634 case FILE_SHARE_READ: 2635 return DENY_WRITE; 2636 case FILE_SHARE_WRITE: 2637 return DENY_READ; 2638 case FILE_SHARE_READ|FILE_SHARE_WRITE: 2639 return DENY_NONE; 2640 } 2641 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) { 2642 return DENY_DOS; 2643 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) { 2644 return DENY_FCB; 2645 } 2646 2647 return (uint32)-1; 2648} 2649 2650pid_t procid_to_pid(const struct server_id *proc) 2651{ 2652 return proc->pid; 2653} 2654 2655static uint32 my_vnn = NONCLUSTER_VNN; 2656 2657void set_my_vnn(uint32 vnn) 2658{ 2659 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn)); 2660 my_vnn = vnn; 2661} 2662 2663uint32 get_my_vnn(void) 2664{ 2665 return my_vnn; 2666} 2667 2668struct server_id pid_to_procid(pid_t pid) 2669{ 2670 struct server_id result; 2671 result.pid = pid; 2672#ifdef CLUSTER_SUPPORT 2673 result.vnn = my_vnn; 2674#endif 2675 return result; 2676} 2677 2678struct server_id procid_self(void) 2679{ 2680 return pid_to_procid(sys_getpid()); 2681} 2682 2683struct server_id server_id_self(void) 2684{ 2685 return procid_self(); 2686} 2687 2688bool procid_equal(const struct server_id *p1, const struct server_id *p2) 2689{ 2690 if (p1->pid != p2->pid) 2691 return False; 2692#ifdef CLUSTER_SUPPORT 2693 if (p1->vnn != p2->vnn) 2694 return False; 2695#endif 2696 return True; 2697} 2698 2699bool cluster_id_equal(const struct server_id *id1, 2700 const struct server_id *id2) 2701{ 2702 return procid_equal(id1, id2); 2703} 2704 2705bool procid_is_me(const struct server_id *pid) 2706{ 2707 if (pid->pid != sys_getpid()) 2708 return False; 2709#ifdef CLUSTER_SUPPORT 2710 if (pid->vnn != my_vnn) 2711 return False; 2712#endif 2713 return True; 2714} 2715 2716struct server_id interpret_pid(const char *pid_string) 2717{ 2718 struct server_id result; 2719 int pid; 2720#ifdef CLUSTER_SUPPORT 2721 unsigned int vnn; 2722 if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) { 2723 result.vnn = vnn; 2724 result.pid = pid; 2725 } 2726 else if (sscanf(pid_string, "%d", &pid) == 1) { 2727 result.vnn = get_my_vnn(); 2728 result.pid = pid; 2729 } 2730 else { 2731 result.vnn = NONCLUSTER_VNN; 2732 result.pid = -1; 2733 } 2734#else 2735 if (sscanf(pid_string, "%d", &pid) != 1) { 2736 result.pid = -1; 2737 } else { 2738 result.pid = pid; 2739 } 2740#endif 2741 /* Assigning to result.pid may have overflowed 2742 Map negative pid to -1: i.e. error */ 2743 if (result.pid < 0) { 2744 result.pid = -1; 2745 } 2746 return result; 2747} 2748 2749char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid) 2750{ 2751#ifdef CLUSTER_SUPPORT 2752 if (pid->vnn == NONCLUSTER_VNN) { 2753 return talloc_asprintf(mem_ctx, 2754 "%d", 2755 (int)pid->pid); 2756 } 2757 else { 2758 return talloc_asprintf(mem_ctx, 2759 "%u:%d", 2760 (unsigned)pid->vnn, 2761 (int)pid->pid); 2762 } 2763#else 2764 return talloc_asprintf(mem_ctx, 2765 "%d", 2766 (int)pid->pid); 2767#endif 2768} 2769 2770char *procid_str_static(const struct server_id *pid) 2771{ 2772 return procid_str(talloc_tos(), pid); 2773} 2774 2775bool procid_valid(const struct server_id *pid) 2776{ 2777 return (pid->pid != -1); 2778} 2779 2780bool procid_is_local(const struct server_id *pid) 2781{ 2782#ifdef CLUSTER_SUPPORT 2783 return pid->vnn == my_vnn; 2784#else 2785 return True; 2786#endif 2787} 2788 2789int this_is_smp(void) 2790{ 2791#if defined(HAVE_SYSCONF) 2792 2793#if defined(SYSCONF_SC_NPROC_ONLN) 2794 return (sysconf(_SC_NPROC_ONLN) > 1) ? 1 : 0; 2795#elif defined(SYSCONF_SC_NPROCESSORS_ONLN) 2796 return (sysconf(_SC_NPROCESSORS_ONLN) > 1) ? 1 : 0; 2797#else 2798 return 0; 2799#endif 2800 2801#else 2802 return 0; 2803#endif 2804} 2805 2806/**************************************************************** 2807 Check if offset/length fit into bufsize. Should probably be 2808 merged with is_offset_safe, but this would require a rewrite 2809 of lanman.c. Later :-) 2810****************************************************************/ 2811 2812bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length) 2813{ 2814 if ((offset + length < offset) || (offset + length < length)) { 2815 /* wrap */ 2816 return true; 2817 } 2818 if ((offset > bufsize) || (offset + length > bufsize)) { 2819 /* overflow */ 2820 return true; 2821 } 2822 return false; 2823} 2824 2825/**************************************************************** 2826 Check if an offset into a buffer is safe. 2827 If this returns True it's safe to indirect into the byte at 2828 pointer ptr+off. 2829****************************************************************/ 2830 2831bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off) 2832{ 2833 const char *end_base = buf_base + buf_len; 2834 char *end_ptr = ptr + off; 2835 2836 if (!buf_base || !ptr) { 2837 return False; 2838 } 2839 2840 if (end_base < buf_base || end_ptr < ptr) { 2841 return False; /* wrap. */ 2842 } 2843 2844 if (end_ptr < end_base) { 2845 return True; 2846 } 2847 return False; 2848} 2849 2850/**************************************************************** 2851 Return a safe pointer into a buffer, or NULL. 2852****************************************************************/ 2853 2854char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off) 2855{ 2856 return is_offset_safe(buf_base, buf_len, ptr, off) ? 2857 ptr + off : NULL; 2858} 2859 2860/**************************************************************** 2861 Return a safe pointer into a string within a buffer, or NULL. 2862****************************************************************/ 2863 2864char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off) 2865{ 2866 if (!is_offset_safe(buf_base, buf_len, ptr, off)) { 2867 return NULL; 2868 } 2869 /* Check if a valid string exists at this offset. */ 2870 if (skip_string(buf_base,buf_len, ptr + off) == NULL) { 2871 return NULL; 2872 } 2873 return ptr + off; 2874} 2875 2876/**************************************************************** 2877 Return an SVAL at a pointer, or failval if beyond the end. 2878****************************************************************/ 2879 2880int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval) 2881{ 2882 /* 2883 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1], 2884 * NOT ptr[2]. 2885 */ 2886 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) { 2887 return failval; 2888 } 2889 return SVAL(ptr,off); 2890} 2891 2892/**************************************************************** 2893 Return an IVAL at a pointer, or failval if beyond the end. 2894****************************************************************/ 2895 2896int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval) 2897{ 2898 /* 2899 * Note we use off+3 here, not off+4 as IVAL accesses 2900 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4]. 2901 */ 2902 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) { 2903 return failval; 2904 } 2905 return IVAL(ptr,off); 2906} 2907 2908/**************************************************************** 2909 Split DOM\user into DOM and user. Do not mix with winbind variants of that 2910 call (they take care of winbind separator and other winbind specific settings). 2911****************************************************************/ 2912 2913void split_domain_user(TALLOC_CTX *mem_ctx, 2914 const char *full_name, 2915 char **domain, 2916 char **user) 2917{ 2918 const char *p = NULL; 2919 2920 p = strchr_m(full_name, '\\'); 2921 2922 if (p != NULL) { 2923 *domain = talloc_strndup(mem_ctx, full_name, 2924 PTR_DIFF(p, full_name)); 2925 *user = talloc_strdup(mem_ctx, p+1); 2926 } else { 2927 *domain = talloc_strdup(mem_ctx, ""); 2928 *user = talloc_strdup(mem_ctx, full_name); 2929 } 2930} 2931 2932#if 0 2933 2934Disable these now we have checked all code paths and ensured 2935NULL returns on zero request. JRA. 2936 2937/**************************************************************** 2938 talloc wrapper functions that guarentee a null pointer return 2939 if size == 0. 2940****************************************************************/ 2941 2942#ifndef MAX_TALLOC_SIZE 2943#define MAX_TALLOC_SIZE 0x10000000 2944#endif 2945 2946/* 2947 * talloc and zero memory. 2948 * - returns NULL if size is zero. 2949 */ 2950 2951void *_talloc_zero_zeronull(const void *ctx, size_t size, const char *name) 2952{ 2953 void *p; 2954 2955 if (size == 0) { 2956 return NULL; 2957 } 2958 2959 p = talloc_named_const(ctx, size, name); 2960 2961 if (p) { 2962 memset(p, '\0', size); 2963 } 2964 2965 return p; 2966} 2967 2968/* 2969 * memdup with a talloc. 2970 * - returns NULL if size is zero. 2971 */ 2972 2973void *_talloc_memdup_zeronull(const void *t, const void *p, size_t size, const char *name) 2974{ 2975 void *newp; 2976 2977 if (size == 0) { 2978 return NULL; 2979 } 2980 2981 newp = talloc_named_const(t, size, name); 2982 if (newp) { 2983 memcpy(newp, p, size); 2984 } 2985 2986 return newp; 2987} 2988 2989/* 2990 * alloc an array, checking for integer overflow in the array size. 2991 * - returns NULL if count or el_size are zero. 2992 */ 2993 2994void *_talloc_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name) 2995{ 2996 if (count >= MAX_TALLOC_SIZE/el_size) { 2997 return NULL; 2998 } 2999 3000 if (el_size == 0 || count == 0) { 3001 return NULL; 3002 } 3003 3004 return talloc_named_const(ctx, el_size * count, name); 3005} 3006 3007/* 3008 * alloc an zero array, checking for integer overflow in the array size 3009 * - returns NULL if count or el_size are zero. 3010 */ 3011 3012void *_talloc_zero_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name) 3013{ 3014 if (count >= MAX_TALLOC_SIZE/el_size) { 3015 return NULL; 3016 } 3017 3018 if (el_size == 0 || count == 0) { 3019 return NULL; 3020 } 3021 3022 return _talloc_zero(ctx, el_size * count, name); 3023} 3024 3025/* 3026 * Talloc wrapper that returns NULL if size == 0. 3027 */ 3028void *talloc_zeronull(const void *context, size_t size, const char *name) 3029{ 3030 if (size == 0) { 3031 return NULL; 3032 } 3033 return talloc_named_const(context, size, name); 3034} 3035#endif 3036 3037bool is_valid_policy_hnd(const struct policy_handle *hnd) 3038{ 3039 struct policy_handle tmp; 3040 ZERO_STRUCT(tmp); 3041 return (memcmp(&tmp, hnd, sizeof(tmp)) != 0); 3042} 3043 3044bool policy_hnd_equal(const struct policy_handle *hnd1, 3045 const struct policy_handle *hnd2) 3046{ 3047 if (!hnd1 || !hnd2) { 3048 return false; 3049 } 3050 3051 return (memcmp(hnd1, hnd2, sizeof(*hnd1)) == 0); 3052} 3053 3054/**************************************************************** 3055 strip off leading '\\' from a hostname 3056****************************************************************/ 3057 3058const char *strip_hostname(const char *s) 3059{ 3060 if (!s) { 3061 return NULL; 3062 } 3063 3064 if (strlen_m(s) < 3) { 3065 return s; 3066 } 3067 3068 if (s[0] == '\\') s++; 3069 if (s[0] == '\\') s++; 3070 3071 return s; 3072} 3073 3074bool tevent_req_poll_ntstatus(struct tevent_req *req, 3075 struct tevent_context *ev, 3076 NTSTATUS *status) 3077{ 3078 bool ret = tevent_req_poll(req, ev); 3079 if (!ret) { 3080 *status = map_nt_error_from_unix(errno); 3081 } 3082 return ret; 3083} 3084 3085/******************************************************************* 3086 Return True if the filename is one of the special executable types. 3087********************************************************************/ 3088 3089bool is_executable(const char *fname) 3090{ 3091 if ((fname = strrchr_m(fname,'.'))) { 3092 if (strequal(fname,".com") || 3093 strequal(fname,".dll") || 3094 strequal(fname,".exe") || 3095 strequal(fname,".sym")) { 3096 return True; 3097 } 3098 } 3099 return False; 3100} 3101 3102/**************************************************************************** 3103 Open a file with a share mode - old openX method - map into NTCreate. 3104****************************************************************************/ 3105 3106bool map_open_params_to_ntcreate(const char *smb_base_fname, 3107 int deny_mode, int open_func, 3108 uint32 *paccess_mask, 3109 uint32 *pshare_mode, 3110 uint32 *pcreate_disposition, 3111 uint32 *pcreate_options) 3112{ 3113 uint32 access_mask; 3114 uint32 share_mode; 3115 uint32 create_disposition; 3116 uint32 create_options = FILE_NON_DIRECTORY_FILE; 3117 3118 DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, " 3119 "open_func = 0x%x\n", 3120 smb_base_fname, (unsigned int)deny_mode, 3121 (unsigned int)open_func )); 3122 3123 /* Create the NT compatible access_mask. */ 3124 switch (GET_OPENX_MODE(deny_mode)) { 3125 case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */ 3126 case DOS_OPEN_RDONLY: 3127 access_mask = FILE_GENERIC_READ; 3128 break; 3129 case DOS_OPEN_WRONLY: 3130 access_mask = FILE_GENERIC_WRITE; 3131 break; 3132 case DOS_OPEN_RDWR: 3133 case DOS_OPEN_FCB: 3134 access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE; 3135 break; 3136 default: 3137 DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n", 3138 (unsigned int)GET_OPENX_MODE(deny_mode))); 3139 return False; 3140 } 3141 3142 /* Create the NT compatible create_disposition. */ 3143 switch (open_func) { 3144 case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST: 3145 create_disposition = FILE_CREATE; 3146 break; 3147 3148 case OPENX_FILE_EXISTS_OPEN: 3149 create_disposition = FILE_OPEN; 3150 break; 3151 3152 case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST: 3153 create_disposition = FILE_OPEN_IF; 3154 break; 3155 3156 case OPENX_FILE_EXISTS_TRUNCATE: 3157 create_disposition = FILE_OVERWRITE; 3158 break; 3159 3160 case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST: 3161 create_disposition = FILE_OVERWRITE_IF; 3162 break; 3163 3164 default: 3165 /* From samba4 - to be confirmed. */ 3166 if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) { 3167 create_disposition = FILE_CREATE; 3168 break; 3169 } 3170 DEBUG(10,("map_open_params_to_ntcreate: bad " 3171 "open_func 0x%x\n", (unsigned int)open_func)); 3172 return False; 3173 } 3174 3175 /* Create the NT compatible share modes. */ 3176 switch (GET_DENY_MODE(deny_mode)) { 3177 case DENY_ALL: 3178 share_mode = FILE_SHARE_NONE; 3179 break; 3180 3181 case DENY_WRITE: 3182 share_mode = FILE_SHARE_READ; 3183 break; 3184 3185 case DENY_READ: 3186 share_mode = FILE_SHARE_WRITE; 3187 break; 3188 3189 case DENY_NONE: 3190 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE; 3191 break; 3192 3193 case DENY_DOS: 3194 create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS; 3195 if (is_executable(smb_base_fname)) { 3196 share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE; 3197 } else { 3198 if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) { 3199 share_mode = FILE_SHARE_READ; 3200 } else { 3201 share_mode = FILE_SHARE_NONE; 3202 } 3203 } 3204 break; 3205 3206 case DENY_FCB: 3207 create_options |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB; 3208 share_mode = FILE_SHARE_NONE; 3209 break; 3210 3211 default: 3212 DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n", 3213 (unsigned int)GET_DENY_MODE(deny_mode) )); 3214 return False; 3215 } 3216 3217 DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, " 3218 "share_mode = 0x%x, create_disposition = 0x%x, " 3219 "create_options = 0x%x\n", 3220 smb_base_fname, 3221 (unsigned int)access_mask, 3222 (unsigned int)share_mode, 3223 (unsigned int)create_disposition, 3224 (unsigned int)create_options )); 3225 3226 if (paccess_mask) { 3227 *paccess_mask = access_mask; 3228 } 3229 if (pshare_mode) { 3230 *pshare_mode = share_mode; 3231 } 3232 if (pcreate_disposition) { 3233 *pcreate_disposition = create_disposition; 3234 } 3235 if (pcreate_options) { 3236 *pcreate_options = create_options; 3237 } 3238 3239 return True; 3240 3241} 3242