smbutil.c revision 111726
1/* 2 * Copyright (C) Andrew Tridgell 1995-1999 3 * 4 * This software may be distributed either under the terms of the 5 * BSD-style license that accompanies tcpdump or the GNU GPL version 2 6 * or later 7 */ 8 9#ifdef HAVE_CONFIG_H 10#include "config.h" 11#endif 12 13#ifndef lint 14static const char rcsid[] = 15 "@(#) $Header: /tcpdump/master/tcpdump/smbutil.c,v 1.18.2.3 2002/07/10 07:29:23 guy Exp $"; 16#endif 17 18#include <sys/param.h> 19#include <sys/time.h> 20#include <sys/types.h> 21#include <sys/socket.h> 22 23#include <netinet/in.h> 24 25#include <ctype.h> 26#include <stdio.h> 27#include <stdlib.h> 28#include <string.h> 29#ifdef TIME_WITH_SYS_TIME 30#include <time.h> 31#endif 32 33#include "interface.h" 34#include "extract.h" 35#include "smb.h" 36 37extern const u_char *startbuf; 38 39/* 40 * interpret a 32 bit dos packed date/time to some parameters 41 */ 42static void 43interpret_dos_date(u_int32_t date, struct tm *tp) 44{ 45 u_int32_t p0, p1, p2, p3; 46 47 p0 = date & 0xFF; 48 p1 = ((date & 0xFF00) >> 8) & 0xFF; 49 p2 = ((date & 0xFF0000) >> 16) & 0xFF; 50 p3 = ((date & 0xFF000000) >> 24) & 0xFF; 51 52 tp->tm_sec = 2 * (p0 & 0x1F); 53 tp->tm_min = ((p0 >> 5) & 0xFF) + ((p1 & 0x7) << 3); 54 tp->tm_hour = (p1 >> 3) & 0xFF; 55 tp->tm_mday = (p2 & 0x1F); 56 tp->tm_mon = ((p2 >> 5) & 0xFF) + ((p3 & 0x1) << 3) - 1; 57 tp->tm_year = ((p3 >> 1) & 0xFF) + 80; 58} 59 60/* 61 * common portion: 62 * create a unix date from a dos date 63 */ 64static time_t 65int_unix_date(u_int32_t dos_date) 66{ 67 struct tm t; 68 69 if (dos_date == 0) 70 return(0); 71 72 interpret_dos_date(dos_date, &t); 73 t.tm_wday = 1; 74 t.tm_yday = 1; 75 t.tm_isdst = 0; 76 77 return (mktime(&t)); 78} 79 80/* 81 * create a unix date from a dos date 82 * in network byte order 83 */ 84static time_t 85make_unix_date(const u_char *date_ptr) 86{ 87 u_int32_t dos_date = 0; 88 89 dos_date = EXTRACT_LE_32BITS(date_ptr); 90 91 return int_unix_date(dos_date); 92} 93 94/* 95 * create a unix date from a dos date 96 * in halfword-swapped network byte order! 97 */ 98static time_t 99make_unix_date2(const u_char *date_ptr) 100{ 101 u_int32_t x, x2; 102 103 x = EXTRACT_LE_32BITS(date_ptr); 104 x2 = ((x & 0xFFFF) << 16) | ((x & 0xFFFF0000) >> 16); 105 return int_unix_date(x2); 106} 107 108/* 109 * interpret an 8 byte "filetime" structure to a time_t 110 * It's originally in "100ns units since jan 1st 1601" 111 */ 112static time_t 113interpret_long_date(const u_char *p) 114{ 115 double d; 116 time_t ret; 117 118 TCHECK2(p[4], 4); 119 120 /* this gives us seconds since jan 1st 1601 (approx) */ 121 d = (EXTRACT_LE_32BITS(p + 4) * 256.0 + p[3]) * (1.0e-7 * (1 << 24)); 122 123 /* now adjust by 369 years to make the secs since 1970 */ 124 d -= 369.0 * 365.25 * 24 * 60 * 60; 125 126 /* and a fudge factor as we got it wrong by a few days */ 127 d += (3 * 24 * 60 * 60 + 6 * 60 * 60 + 2); 128 129 if (d < 0) 130 return(0); 131 132 ret = (time_t)d; 133 134 return(ret); 135trunc: 136 return(0); 137} 138 139/* 140 * interpret the weird netbios "name". Return the name type, or -1 if 141 * we run past the end of the buffer 142 */ 143static int 144name_interpret(const u_char *in, const u_char *maxbuf, char *out) 145{ 146 int ret; 147 int len; 148 149 if (in >= maxbuf) 150 return(-1); /* name goes past the end of the buffer */ 151 TCHECK2(*in, 1); 152 len = (*in++) / 2; 153 154 *out=0; 155 156 if (len > 30 || len < 1) 157 return(0); 158 159 while (len--) { 160 TCHECK2(*in, 2); 161 if (in + 1 >= maxbuf) 162 return(-1); /* name goes past the end of the buffer */ 163 if (in[0] < 'A' || in[0] > 'P' || in[1] < 'A' || in[1] > 'P') { 164 *out = 0; 165 return(0); 166 } 167 *out = ((in[0] - 'A') << 4) + (in[1] - 'A'); 168 in += 2; 169 out++; 170 } 171 *out = 0; 172 ret = out[-1]; 173 174 return(ret); 175 176trunc: 177 return(-1); 178} 179 180/* 181 * find a pointer to a netbios name 182 */ 183static const u_char * 184name_ptr(const u_char *buf, int ofs, const u_char *maxbuf) 185{ 186 const u_char *p; 187 u_char c; 188 189 p = buf + ofs; 190 if (p >= maxbuf) 191 return(NULL); /* name goes past the end of the buffer */ 192 TCHECK2(*p, 1); 193 194 c = *p; 195 196 /* XXX - this should use the same code that the DNS dissector does */ 197 if ((c & 0xC0) == 0xC0) { 198 u_int16_t l = EXTRACT_16BITS(buf + ofs) & 0x3FFF; 199 if (l == 0) { 200 /* We have a pointer that points to itself. */ 201 return(NULL); 202 } 203 p = buf + l; 204 if (p >= maxbuf) 205 return(NULL); /* name goes past the end of the buffer */ 206 TCHECK2(*p, 1); 207 return(buf + l); 208 } else 209 return(buf + ofs); 210 211trunc: 212 return(NULL); /* name goes past the end of the buffer */ 213} 214 215/* 216 * extract a netbios name from a buf 217 */ 218static int 219name_extract(const u_char *buf, int ofs, const u_char *maxbuf, char *name) 220{ 221 const u_char *p = name_ptr(buf, ofs, maxbuf); 222 if (p == NULL) 223 return(-1); /* error (probably name going past end of buffer) */ 224 name[0] = '\0'; 225 return(name_interpret(p, maxbuf, name)); 226} 227 228 229/* 230 * return the total storage length of a mangled name 231 */ 232static int 233name_len(const unsigned char *s, const unsigned char *maxbuf) 234{ 235 const unsigned char *s0 = s; 236 unsigned char c; 237 238 if (s >= maxbuf) 239 return(-1); /* name goes past the end of the buffer */ 240 TCHECK2(*s, 1); 241 c = *s; 242 if ((c & 0xC0) == 0xC0) 243 return(2); 244 while (*s) { 245 if (s >= maxbuf) 246 return(-1); /* name goes past the end of the buffer */ 247 TCHECK2(*s, 1); 248 s += (*s) + 1; 249 } 250 return(PTR_DIFF(s, s0) + 1); 251 252trunc: 253 return(-1); /* name goes past the end of the buffer */ 254} 255 256static void 257print_asc(const unsigned char *buf, int len) 258{ 259 int i; 260 for (i = 0; i < len; i++) 261 safeputchar(buf[i]); 262} 263 264static char * 265name_type_str(int name_type) 266{ 267 char *f = NULL; 268 269 switch (name_type) { 270 case 0: f = "Workstation"; break; 271 case 0x03: f = "Client?"; break; 272 case 0x20: f = "Server"; break; 273 case 0x1d: f = "Master Browser"; break; 274 case 0x1b: f = "Domain Controller"; break; 275 case 0x1e: f = "Browser Server"; break; 276 default: f = "Unknown"; break; 277 } 278 return(f); 279} 280 281void 282print_data(const unsigned char *buf, int len) 283{ 284 int i = 0; 285 286 if (len <= 0) 287 return; 288 printf("[%03X] ", i); 289 for (i = 0; i < len; /*nothing*/) { 290 printf("%02X ", buf[i] & 0xff); 291 i++; 292 if (i%8 == 0) 293 printf(" "); 294 if (i % 16 == 0) { 295 print_asc(&buf[i - 16], 8); 296 printf(" "); 297 print_asc(&buf[i - 8], 8); 298 printf("\n"); 299 if (i < len) 300 printf("[%03X] ", i); 301 } 302 } 303 if (i % 16) { 304 int n; 305 306 n = 16 - (i % 16); 307 printf(" "); 308 if (n>8) 309 printf(" "); 310 while (n--) 311 printf(" "); 312 313 n = SMBMIN(8, i % 16); 314 print_asc(&buf[i - (i % 16)], n); 315 printf(" "); 316 n = (i % 16) - n; 317 if (n > 0) 318 print_asc(&buf[i - n], n); 319 printf("\n"); 320 } 321} 322 323 324static void 325write_bits(unsigned int val, char *fmt) 326{ 327 char *p = fmt; 328 int i = 0; 329 330 while ((p = strchr(fmt, '|'))) { 331 size_t l = PTR_DIFF(p, fmt); 332 if (l && (val & (1 << i))) 333 printf("%.*s ", (int)l, fmt); 334 fmt = p + 1; 335 i++; 336 } 337} 338 339/* convert a UCS2 string into iso-8859-1 string */ 340static const char * 341unistr(const u_char *s, int *len) 342{ 343 static char buf[1000]; 344 int l=0; 345 static int use_unicode = -1; 346 347 if (use_unicode == -1) { 348 char *p = getenv("USE_UNICODE"); 349 if (p && (atoi(p) == 1)) 350 use_unicode = 1; 351 else 352 use_unicode = 0; 353 } 354 355 /* maybe it isn't unicode - a cheap trick */ 356 if (!use_unicode || (s[0] && s[1])) { 357 *len = strlen((const char *)s) + 1; 358 return (const char *)s; 359 } 360 361 *len = 0; 362 363 if (s[0] == 0 && s[1] != 0) { 364 s++; 365 *len = 1; 366 } 367 368 while (l < (sizeof(buf) - 1) && s[0] && s[1] == 0) { 369 buf[l] = s[0]; 370 s += 2; 371 l++; 372 *len += 2; 373 } 374 buf[l] = 0; 375 *len += 2; 376 return buf; 377} 378 379static const u_char * 380smb_fdata1(const u_char *buf, const char *fmt, const u_char *maxbuf) 381{ 382 int reverse = 0; 383 char *attrib_fmt = "READONLY|HIDDEN|SYSTEM|VOLUME|DIR|ARCHIVE|"; 384 int len; 385 386 while (*fmt && buf<maxbuf) { 387 switch (*fmt) { 388 case 'a': 389 write_bits(buf[0], attrib_fmt); 390 buf++; 391 fmt++; 392 break; 393 394 case 'A': 395 write_bits(EXTRACT_LE_16BITS(buf), attrib_fmt); 396 buf += 2; 397 fmt++; 398 break; 399 400 case '{': 401 { 402 char bitfmt[128]; 403 char *p; 404 int l; 405 406 p = strchr(++fmt, '}'); 407 l = PTR_DIFF(p, fmt); 408 strncpy(bitfmt, fmt, l); 409 bitfmt[l] = 0; 410 fmt = p + 1; 411 write_bits(buf[0], bitfmt); 412 buf++; 413 break; 414 } 415 416 case 'P': 417 { 418 int l = atoi(fmt + 1); 419 buf += l; 420 fmt++; 421 while (isdigit((unsigned char)*fmt)) 422 fmt++; 423 break; 424 } 425 case 'r': 426 reverse = !reverse; 427 fmt++; 428 break; 429 case 'D': 430 { 431 unsigned int x; 432 433 TCHECK2(buf[0], 4); 434 x = reverse ? EXTRACT_32BITS(buf) : EXTRACT_LE_32BITS(buf); 435 printf("%d (0x%x)", x, x); 436 buf += 4; 437 fmt++; 438 break; 439 } 440 case 'L': 441 { 442 unsigned int x1, x2; 443 444 TCHECK2(buf[4], 4); 445 x1 = reverse ? EXTRACT_32BITS(buf) : 446 EXTRACT_LE_32BITS(buf); 447 x2 = reverse ? EXTRACT_32BITS(buf + 4) : 448 EXTRACT_LE_32BITS(buf + 4); 449 if (x2) 450 printf("0x%08x:%08x", x2, x1); 451 else 452 printf("%d (0x%08x%08x)", x1, x2, x1); 453 buf += 8; 454 fmt++; 455 break; 456 } 457 case 'd': 458 { 459 unsigned int x; 460 TCHECK2(buf[0], 2); 461 x = reverse ? EXTRACT_16BITS(buf) : 462 EXTRACT_LE_16BITS(buf); 463 printf("%d (0x%x)", x, x); 464 buf += 2; 465 fmt++; 466 break; 467 } 468 case 'W': 469 { 470 unsigned int x; 471 TCHECK2(buf[0], 4); 472 x = reverse ? EXTRACT_32BITS(buf) : 473 EXTRACT_LE_32BITS(buf); 474 printf("0x%X", x); 475 buf += 4; 476 fmt++; 477 break; 478 } 479 case 'w': 480 { 481 unsigned int x; 482 TCHECK2(buf[0], 2); 483 x = reverse ? EXTRACT_16BITS(buf) : 484 EXTRACT_LE_16BITS(buf); 485 printf("0x%X", x); 486 buf += 2; 487 fmt++; 488 break; 489 } 490 case 'B': 491 { 492 unsigned int x; 493 TCHECK(buf[0]); 494 x = buf[0]; 495 printf("0x%X", x); 496 buf += 1; 497 fmt++; 498 break; 499 } 500 case 'b': 501 { 502 unsigned int x; 503 TCHECK(buf[0]); 504 x = buf[0]; 505 printf("%u (0x%x)", x, x); 506 buf += 1; 507 fmt++; 508 break; 509 } 510 case 'S': 511 { 512 /*XXX unistr() */ 513 printf("%.*s", (int)PTR_DIFF(maxbuf, buf), unistr(buf, &len)); 514 buf += len; 515 fmt++; 516 break; 517 } 518 case 'Z': 519 { 520 if (*buf != 4 && *buf != 2) 521 printf("Error! ASCIIZ buffer of type %u (safety=%lu)\n", *buf, 522 (unsigned long)PTR_DIFF(maxbuf, buf)); 523 printf("%.*s", (int)PTR_DIFF(maxbuf, buf + 1), 524 unistr(buf + 1, &len)); 525 buf += len + 1; 526 fmt++; 527 break; 528 } 529 case 's': 530 { 531 int l = atoi(fmt + 1); 532 printf("%-*.*s", l, l, buf); 533 buf += l; 534 fmt++; 535 while (isdigit((unsigned char)*fmt)) 536 fmt++; 537 break; 538 } 539 case 'h': 540 { 541 int l = atoi(fmt + 1); 542 while (l--) 543 printf("%02x", *buf++); 544 fmt++; 545 while (isdigit((unsigned char)*fmt)) 546 fmt++; 547 break; 548 } 549 case 'n': 550 { 551 int t = atoi(fmt+1); 552 char nbuf[255]; 553 int name_type; 554 int len; 555 556 switch (t) { 557 case 1: 558 name_type = name_extract(startbuf, PTR_DIFF(buf, startbuf), 559 maxbuf, nbuf); 560 if (name_type < 0) 561 goto trunc; 562 len = name_len(buf, maxbuf); 563 if (len < 0) 564 goto trunc; 565 buf += len; 566 printf("%-15.15s NameType=0x%02X (%s)", nbuf, name_type, 567 name_type_str(name_type)); 568 break; 569 case 2: 570 name_type = buf[15]; 571 printf("%-15.15s NameType=0x%02X (%s)", buf, name_type, 572 name_type_str(name_type)); 573 buf += 16; 574 break; 575 } 576 fmt++; 577 while (isdigit((unsigned char)*fmt)) 578 fmt++; 579 break; 580 } 581 case 'T': 582 { 583 time_t t; 584 int x; 585 x = EXTRACT_LE_32BITS(buf); 586 587 switch (atoi(fmt + 1)) { 588 case 1: 589 if (x == 0 || x == -1 || x == 0xFFFFFFFF) 590 t = 0; 591 else 592 t = make_unix_date(buf); 593 buf += 4; 594 break; 595 case 2: 596 if (x == 0 || x == -1 || x == 0xFFFFFFFF) 597 t = 0; 598 else 599 t = make_unix_date2(buf); 600 buf += 4; 601 break; 602 case 3: 603 t = interpret_long_date(buf); 604 buf += 8; 605 break; 606 } 607 printf("%s", t ? asctime(localtime(&t)) : "NULL\n"); 608 fmt++; 609 while (isdigit((unsigned char)*fmt)) 610 fmt++; 611 break; 612 } 613 default: 614 putchar(*fmt); 615 fmt++; 616 break; 617 } 618 } 619 620 if (buf >= maxbuf && *fmt) 621 printf("END OF BUFFER\n"); 622 623 return(buf); 624 625trunc: 626 printf("\n"); 627 printf("WARNING: Short packet. Try increasing the snap length\n"); 628 return(NULL); 629} 630 631const u_char * 632smb_fdata(const u_char *buf, const char *fmt, const u_char *maxbuf) 633{ 634 static int depth = 0; 635 char s[128]; 636 char *p; 637 638 while (*fmt) { 639 switch (*fmt) { 640 case '*': 641 fmt++; 642 while (buf < maxbuf) { 643 const u_char *buf2; 644 depth++; 645 buf2 = smb_fdata(buf, fmt, maxbuf); 646 depth--; 647 if (buf2 == NULL) 648 return(NULL); 649 if (buf2 == buf) 650 return(buf); 651 buf = buf2; 652 } 653 return(buf); 654 655 case '|': 656 fmt++; 657 if (buf >= maxbuf) 658 return(buf); 659 break; 660 661 case '%': 662 fmt++; 663 buf = maxbuf; 664 break; 665 666 case '#': 667 fmt++; 668 return(buf); 669 break; 670 671 case '[': 672 fmt++; 673 if (buf >= maxbuf) 674 return(buf); 675 memset(s, 0, sizeof(s)); 676 p = strchr(fmt, ']'); 677 if (p - fmt + 1 > sizeof(s)) { 678 /* overrun */ 679 return(buf); 680 } 681 strncpy(s, fmt, p - fmt); 682 s[p - fmt] = '\0'; 683 fmt = p + 1; 684 buf = smb_fdata1(buf, s, maxbuf); 685 if (buf == NULL) 686 return(NULL); 687 break; 688 689 default: 690 putchar(*fmt); 691 fmt++; 692 fflush(stdout); 693 break; 694 } 695 } 696 if (!depth && buf < maxbuf) { 697 size_t len = PTR_DIFF(maxbuf, buf); 698 printf("Data: (%lu bytes)\n", (unsigned long)len); 699 print_data(buf, len); 700 return(buf + len); 701 } 702 return(buf); 703} 704 705typedef struct { 706 const char *name; 707 int code; 708 const char *message; 709} err_code_struct; 710 711/* Dos Error Messages */ 712static err_code_struct dos_msgs[] = { 713 { "ERRbadfunc", 1, "Invalid function." }, 714 { "ERRbadfile", 2, "File not found." }, 715 { "ERRbadpath", 3, "Directory invalid." }, 716 { "ERRnofids", 4, "No file descriptors available" }, 717 { "ERRnoaccess", 5, "Access denied." }, 718 { "ERRbadfid", 6, "Invalid file handle." }, 719 { "ERRbadmcb", 7, "Memory control blocks destroyed." }, 720 { "ERRnomem", 8, "Insufficient server memory to perform the requested function." }, 721 { "ERRbadmem", 9, "Invalid memory block address." }, 722 { "ERRbadenv", 10, "Invalid environment." }, 723 { "ERRbadformat", 11, "Invalid format." }, 724 { "ERRbadaccess", 12, "Invalid open mode." }, 725 { "ERRbaddata", 13, "Invalid data." }, 726 { "ERR", 14, "reserved." }, 727 { "ERRbaddrive", 15, "Invalid drive specified." }, 728 { "ERRremcd", 16, "A Delete Directory request attempted to remove the server's current directory." }, 729 { "ERRdiffdevice", 17, "Not same device." }, 730 { "ERRnofiles", 18, "A File Search command can find no more files matching the specified criteria." }, 731 { "ERRbadshare", 32, "The sharing mode specified for an Open conflicts with existing FIDs on the file." }, 732 { "ERRlock", 33, "A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process." }, 733 { "ERRfilexists", 80, "The file named in a Create Directory, Make New File or Link request already exists." }, 734 { "ERRbadpipe", 230, "Pipe invalid." }, 735 { "ERRpipebusy", 231, "All instances of the requested pipe are busy." }, 736 { "ERRpipeclosing", 232, "Pipe close in progress." }, 737 { "ERRnotconnected", 233, "No process on other end of pipe." }, 738 { "ERRmoredata", 234, "There is more data to be returned." }, 739 { NULL, -1, NULL } 740 }; 741 742/* Server Error Messages */ 743err_code_struct server_msgs[] = { 744 { "ERRerror", 1, "Non-specific error code." }, 745 { "ERRbadpw", 2, "Bad password - name/password pair in a Tree Connect or Session Setup are invalid." }, 746 { "ERRbadtype", 3, "reserved." }, 747 { "ERRaccess", 4, "The requester does not have the necessary access rights within the specified context for the requested function. The context is defined by the TID or the UID." }, 748 { "ERRinvnid", 5, "The tree ID (TID) specified in a command was invalid." }, 749 { "ERRinvnetname", 6, "Invalid network name in tree connect." }, 750 { "ERRinvdevice", 7, "Invalid device - printer request made to non-printer connection or non-printer request made to printer connection." }, 751 { "ERRqfull", 49, "Print queue full (files) -- returned by open print file." }, 752 { "ERRqtoobig", 50, "Print queue full -- no space." }, 753 { "ERRqeof", 51, "EOF on print queue dump." }, 754 { "ERRinvpfid", 52, "Invalid print file FID." }, 755 { "ERRsmbcmd", 64, "The server did not recognize the command received." }, 756 { "ERRsrverror", 65, "The server encountered an internal error, e.g., system file unavailable." }, 757 { "ERRfilespecs", 67, "The file handle (FID) and pathname parameters contained an invalid combination of values." }, 758 { "ERRreserved", 68, "reserved." }, 759 { "ERRbadpermits", 69, "The access permissions specified for a file or directory are not a valid combination. The server cannot set the requested attribute." }, 760 { "ERRreserved", 70, "reserved." }, 761 { "ERRsetattrmode", 71, "The attribute mode in the Set File Attribute request is invalid." }, 762 { "ERRpaused", 81, "Server is paused." }, 763 { "ERRmsgoff", 82, "Not receiving messages." }, 764 { "ERRnoroom", 83, "No room to buffer message." }, 765 { "ERRrmuns", 87, "Too many remote user names." }, 766 { "ERRtimeout", 88, "Operation timed out." }, 767 { "ERRnoresource", 89, "No resources currently available for request." }, 768 { "ERRtoomanyuids", 90, "Too many UIDs active on this session." }, 769 { "ERRbaduid", 91, "The UID is not known as a valid ID on this session." }, 770 { "ERRusempx", 250, "Temp unable to support Raw, use MPX mode." }, 771 { "ERRusestd", 251, "Temp unable to support Raw, use standard read/write." }, 772 { "ERRcontmpx", 252, "Continue in MPX mode." }, 773 { "ERRreserved", 253, "reserved." }, 774 { "ERRreserved", 254, "reserved." }, 775 { "ERRnosupport", 0xFFFF, "Function not supported." }, 776 { NULL, -1, NULL } 777}; 778 779/* Hard Error Messages */ 780err_code_struct hard_msgs[] = { 781 { "ERRnowrite", 19, "Attempt to write on write-protected diskette." }, 782 { "ERRbadunit", 20, "Unknown unit." }, 783 { "ERRnotready", 21, "Drive not ready." }, 784 { "ERRbadcmd", 22, "Unknown command." }, 785 { "ERRdata", 23, "Data error (CRC)." }, 786 { "ERRbadreq", 24, "Bad request structure length." }, 787 { "ERRseek", 25 , "Seek error." }, 788 { "ERRbadmedia", 26, "Unknown media type." }, 789 { "ERRbadsector", 27, "Sector not found." }, 790 { "ERRnopaper", 28, "Printer out of paper." }, 791 { "ERRwrite", 29, "Write fault." }, 792 { "ERRread", 30, "Read fault." }, 793 { "ERRgeneral", 31, "General failure." }, 794 { "ERRbadshare", 32, "A open conflicts with an existing open." }, 795 { "ERRlock", 33, "A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process." }, 796 { "ERRwrongdisk", 34, "The wrong disk was found in a drive." }, 797 { "ERRFCBUnavail", 35, "No FCBs are available to process request." }, 798 { "ERRsharebufexc", 36, "A sharing buffer has been exceeded." }, 799 { NULL, -1, NULL } 800}; 801 802static struct { 803 int code; 804 char *class; 805 err_code_struct *err_msgs; 806} err_classes[] = { 807 { 0, "SUCCESS", NULL }, 808 { 0x01, "ERRDOS", dos_msgs }, 809 { 0x02, "ERRSRV", server_msgs }, 810 { 0x03, "ERRHRD", hard_msgs }, 811 { 0x04, "ERRXOS", NULL }, 812 { 0xE1, "ERRRMX1", NULL }, 813 { 0xE2, "ERRRMX2", NULL }, 814 { 0xE3, "ERRRMX3", NULL }, 815 { 0xFF, "ERRCMD", NULL }, 816 { -1, NULL, NULL } 817}; 818 819/* 820 * return a SMB error string from a SMB buffer 821 */ 822char * 823smb_errstr(int class, int num) 824{ 825 static char ret[128]; 826 int i, j; 827 828 ret[0] = 0; 829 830 for (i = 0; err_classes[i].class; i++) 831 if (err_classes[i].code == class) { 832 if (err_classes[i].err_msgs) { 833 err_code_struct *err = err_classes[i].err_msgs; 834 for (j = 0; err[j].name; j++) 835 if (num == err[j].code) { 836 snprintf(ret, sizeof(ret), "%s - %s (%s)", 837 err_classes[i].class, err[j].name, err[j].message); 838 return ret; 839 } 840 } 841 842 snprintf(ret, sizeof(ret), "%s - %d", err_classes[i].class, num); 843 return ret; 844 } 845 846 snprintf(ret, sizeof(ret), "ERROR: Unknown error (%d,%d)", class, num); 847 return(ret); 848} 849