source/libsmb/clierror.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client error handling routines
   4    Copyright (C) Andrew Tridgell 1994-1998
   5    Copyright (C) Jelmer Vernooij 2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 /*****************************************************
  25  RAP error codes - a small start but will be extended.
  26
  27  XXX: Perhaps these should move into a common function because they're
  28  duplicated in clirap2.c
  29
  30 *******************************************************/
  31
  32 static const struct
  33 {
  34   int err;
  35   const char *message;
  36 } rap_errmap[] =
  37 {
  38   {5,    "RAP5: User has insufficient privilege" },
  39   {50,   "RAP50: Not supported by server" },
  40   {65,   "RAP65: Access denied" },
  41   {86,   "RAP86: The specified password is invalid" },
  42   {2220, "RAP2220: Group does not exist" },
  43   {2221, "RAP2221: User does not exist" },
  44   {2226, "RAP2226: Operation only permitted on a Primary Domain Controller"  },
  45   {2237, "RAP2237: User is not in group" },
  46   {2242, "RAP2242: The password of this user has expired." },
  47   {2243, "RAP2243: The password of this user cannot change." },
  48   {2244, "RAP2244: This password cannot be used now (password history conflict)." },
  49   {2245, "RAP2245: The password is shorter than required." },
  50   {2246, "RAP2246: The password of this user is too recent to change."},
  51
  52   /* these really shouldn't be here ... */
  53   {0x80, "Not listening on called name"},
  54   {0x81, "Not listening for calling name"},
  55   {0x82, "Called name not present"},
  56   {0x83, "Called name present, but insufficient resources"},
  57
  58   {0, NULL}
  59 };
  60
  61 /****************************************************************************
  62   return a description of an SMB error
  63 ****************************************************************************/
  64 static const char *cli_smb_errstr(struct cli_state *cli)
  65 {
  66         return smb_dos_errstr(cli->inbuf);
  67 }
  68
  69 /***************************************************************************
  70  Return an error message - either an NT error, SMB error or a RAP error.
  71  Note some of the NT errors are actually warnings or "informational" errors
  72  in which case they can be safely ignored.
  73 ****************************************************************************/
  74
  75 const char *cli_errstr(struct cli_state *cli)
  76 {
  77         static fstring cli_error_message;
  78         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), errnum;
  79         uint8 errclass;
  80         int i;
  81
  82         if (!cli->initialised) {
  83                 fstrcpy(cli_error_message, "[Programmer's error] cli_errstr called on unitialized cli_stat struct!\n");
  84                 return cli_error_message;
  85         }
  86
  87         /* Was it server socket error ? */
  88         if (cli->fd == -1 && cli->smb_rw_error) {
  89                 switch(cli->smb_rw_error) {
  90                         case READ_TIMEOUT:
  91                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
  92                                         "Call timed out: server did not respond after %d milliseconds",
  93                                         cli->timeout);
  94                                 break;
  95                         case READ_EOF:
  96                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
  97                                         "Call returned zero bytes (EOF)" );
  98                                 break;
  99                         case READ_ERROR:
 100                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 101                                         "Read error: %s", strerror(errno) );
 102                                 break;
 103                         case WRITE_ERROR:
 104                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 105                                         "Write error: %s", strerror(errno) );
 106                                 break;
 107                         case READ_BAD_SIG:
 108                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 109                                         "Server packet had invalid SMB signature!");
 110                                 break;
 111                         default:
 112                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 113                                         "Unknown error code %d\n", cli->smb_rw_error );
 114                                 break;
 115                 }
 116                 return cli_error_message;
 117         }
 118
 119         /* Case #1: RAP error */
 120         if (cli->rap_error) {
 121                 for (i = 0; rap_errmap[i].message != NULL; i++) {
 122                         if (rap_errmap[i].err == cli->rap_error) {
 123                                 return rap_errmap[i].message;
 124                         }
 125                 }
 126
 127                 slprintf(cli_error_message, sizeof(cli_error_message) - 1, "RAP code %d",
 128                         cli->rap_error);
 129
 130                 return cli_error_message;
 131         }
 132
 133         /* Case #2: 32-bit NT errors */
 134         if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
 135                 NTSTATUS status = NT_STATUS(IVAL(cli->inbuf,smb_rcls));
 136
 137                 return nt_errstr(status);
 138         }
 139
 140         cli_dos_error(cli, &errclass, &errnum);
 141
 142         /* Case #3: SMB error */
 143
 144         return cli_smb_errstr(cli);
 145 }
 146
 147
 148 /* Return the 32-bit NT status code from the last packet */
 149 NTSTATUS cli_nt_error(struct cli_state *cli)
 150 {
 151         int flgs2 = SVAL(cli->inbuf,smb_flg2);
 152
 153         if (!(flgs2 & FLAGS2_32_BIT_ERROR_CODES)) {
 154                 int e_class  = CVAL(cli->inbuf,smb_rcls);
 155                 int code  = SVAL(cli->inbuf,smb_err);
 156                 return dos_to_ntstatus(e_class, code);
 157         }
 158
 159         return NT_STATUS(IVAL(cli->inbuf,smb_rcls));
 160 }
 161
 162
 163 /* Return the DOS error from the last packet - an error class and an error
 164    code. */
 165 void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
 166 {
 167         int  flgs2;
 168         char rcls;
 169         int code;
 170
 171         if(!cli->initialised) return;
 172
 173         flgs2 = SVAL(cli->inbuf,smb_flg2);
 174
 175         if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
 176                 NTSTATUS ntstatus = NT_STATUS(IVAL(cli->inbuf, smb_rcls));
 177                 ntstatus_to_dos(ntstatus, eclass, ecode);
 178                 return;
 179         }
 180
 181         rcls  = CVAL(cli->inbuf,smb_rcls);
 182         code  = SVAL(cli->inbuf,smb_err);
 183
 184         if (eclass) *eclass = rcls;
 185         if (ecode) *ecode    = code;
 186 }
 187
 188 /* Return a UNIX errno from a dos error class, error number tuple */
 189
 190 static int cli_errno_from_dos(uint8 eclass, uint32 num)
 191 {
 192         if (eclass == ERRDOS) {
 193                 switch (num) {
 194                 case ERRbadfile: return ENOENT;
 195                 case ERRbadpath: return ENOTDIR;
 196                 case ERRnoaccess: return EACCES;
 197                 case ERRfilexists: return EEXIST;
 198                 case ERRrename: return EEXIST;
 199                 case ERRbadshare: return EBUSY;
 200                 case ERRlock: return EBUSY;
 201                 case ERRinvalidname: return ENOENT;
 202                 case ERRnosuchshare: return ENODEV;
 203                 }
 204         }
 205
 206         if (eclass == ERRSRV) {
 207                 switch (num) {
 208                 case ERRbadpw: return EPERM;
 209                 case ERRaccess: return EACCES;
 210                 case ERRnoresource: return ENOMEM;
 211                 case ERRinvdevice: return ENODEV;
 212                 case ERRinvnetname: return ENODEV;
 213                 }
 214         }
 215
 216         /* for other cases */
 217         return EINVAL;
 218 }
 219
 220 /* Return a UNIX errno from a NT status code */
 221 static struct {
 222         NTSTATUS status;
 223         int error;
 224 } nt_errno_map[] = {
 225         {NT_STATUS_ACCESS_VIOLATION, EACCES},
 226         {NT_STATUS_INVALID_HANDLE, EBADF},
 227         {NT_STATUS_ACCESS_DENIED, EACCES},
 228         {NT_STATUS_OBJECT_NAME_NOT_FOUND, ENOENT},
 229         {NT_STATUS_SHARING_VIOLATION, EBUSY},
 230         {NT_STATUS_OBJECT_PATH_INVALID, ENOTDIR},
 231         {NT_STATUS_OBJECT_NAME_COLLISION, EEXIST},
 232         {NT_STATUS_PATH_NOT_COVERED, ENOENT},
 233         {NT_STATUS_UNSUCCESSFUL, EINVAL},
 234         {NT_STATUS_NOT_IMPLEMENTED, ENOSYS},
 235         {NT_STATUS_IN_PAGE_ERROR, EFAULT},
 236         {NT_STATUS_BAD_NETWORK_NAME, ENOENT},
 237 #ifdef EDQUOT
 238         {NT_STATUS_PAGEFILE_QUOTA, EDQUOT},
 239         {NT_STATUS_QUOTA_EXCEEDED, EDQUOT},
 240         {NT_STATUS_REGISTRY_QUOTA_LIMIT, EDQUOT},
 241         {NT_STATUS_LICENSE_QUOTA_EXCEEDED, EDQUOT},
 242 #endif
 243 #ifdef ETIME
 244         {NT_STATUS_TIMER_NOT_CANCELED, ETIME},
 245 #endif
 246         {NT_STATUS_INVALID_PARAMETER, EINVAL},
 247         {NT_STATUS_NO_SUCH_DEVICE, ENODEV},
 248         {NT_STATUS_NO_SUCH_FILE, ENOENT},
 249 #ifdef ENODATA
 250         {NT_STATUS_END_OF_FILE, ENODATA},
 251 #endif
 252 #ifdef ENOMEDIUM
 253         {NT_STATUS_NO_MEDIA_IN_DEVICE, ENOMEDIUM},
 254         {NT_STATUS_NO_MEDIA, ENOMEDIUM},
 255 #endif
 256         {NT_STATUS_NONEXISTENT_SECTOR, ESPIPE},
 257         {NT_STATUS_NO_MEMORY, ENOMEM},
 258         {NT_STATUS_CONFLICTING_ADDRESSES, EADDRINUSE},
 259         {NT_STATUS_NOT_MAPPED_VIEW, EINVAL},
 260         {NT_STATUS_UNABLE_TO_FREE_VM, EADDRINUSE},
 261         {NT_STATUS_ACCESS_DENIED, EACCES},
 262         {NT_STATUS_BUFFER_TOO_SMALL, ENOBUFS},
 263         {NT_STATUS_WRONG_PASSWORD, EACCES},
 264         {NT_STATUS_LOGON_FAILURE, EACCES},
 265         {NT_STATUS_INVALID_WORKSTATION, EACCES},
 266         {NT_STATUS_INVALID_LOGON_HOURS, EACCES},
 267         {NT_STATUS_PASSWORD_EXPIRED, EACCES},
 268         {NT_STATUS_ACCOUNT_DISABLED, EACCES},
 269         {NT_STATUS_DISK_FULL, ENOSPC},
 270         {NT_STATUS_INVALID_PIPE_STATE, EPIPE},
 271         {NT_STATUS_PIPE_BUSY, EPIPE},
 272         {NT_STATUS_PIPE_DISCONNECTED, EPIPE},
 273         {NT_STATUS_PIPE_NOT_AVAILABLE, ENOSYS},
 274         {NT_STATUS_FILE_IS_A_DIRECTORY, EISDIR},
 275         {NT_STATUS_NOT_SUPPORTED, ENOSYS},
 276         {NT_STATUS_NOT_A_DIRECTORY, ENOTDIR},
 277         {NT_STATUS_DIRECTORY_NOT_EMPTY, ENOTEMPTY},
 278         {NT_STATUS_NETWORK_UNREACHABLE, ENETUNREACH},
 279         {NT_STATUS_HOST_UNREACHABLE, EHOSTUNREACH},
 280         {NT_STATUS_CONNECTION_ABORTED, ECONNABORTED},
 281         {NT_STATUS_CONNECTION_REFUSED, ECONNREFUSED},
 282         {NT_STATUS_TOO_MANY_LINKS, EMLINK},
 283         {NT_STATUS_NETWORK_BUSY, EBUSY},
 284         {NT_STATUS_DEVICE_DOES_NOT_EXIST, ENODEV},
 285 #ifdef ELIBACC
 286         {NT_STATUS_DLL_NOT_FOUND, ELIBACC},
 287 #endif
 288         {NT_STATUS_PIPE_BROKEN, EPIPE},
 289         {NT_STATUS_REMOTE_NOT_LISTENING, ECONNREFUSED},
 290         {NT_STATUS_NETWORK_ACCESS_DENIED, EACCES},
 291         {NT_STATUS_TOO_MANY_OPENED_FILES, EMFILE},
 292 #ifdef EPROTO
 293         {NT_STATUS_DEVICE_PROTOCOL_ERROR, EPROTO},
 294 #endif
 295         {NT_STATUS_FLOAT_OVERFLOW, ERANGE},
 296         {NT_STATUS_FLOAT_UNDERFLOW, ERANGE},
 297         {NT_STATUS_INTEGER_OVERFLOW, ERANGE},
 298         {NT_STATUS_MEDIA_WRITE_PROTECTED, EROFS},
 299         {NT_STATUS_PIPE_CONNECTED, EISCONN},
 300         {NT_STATUS_MEMORY_NOT_ALLOCATED, EFAULT},
 301         {NT_STATUS_FLOAT_INEXACT_RESULT, ERANGE},
 302         {NT_STATUS_ILL_FORMED_PASSWORD, EACCES},
 303         {NT_STATUS_PASSWORD_RESTRICTION, EACCES},
 304         {NT_STATUS_ACCOUNT_RESTRICTION, EACCES},
 305         {NT_STATUS_PORT_CONNECTION_REFUSED, ECONNREFUSED},
 306         {NT_STATUS_NAME_TOO_LONG, ENAMETOOLONG},
 307         {NT_STATUS_REMOTE_DISCONNECT, ESHUTDOWN},
 308         {NT_STATUS_CONNECTION_DISCONNECTED, ECONNABORTED},
 309         {NT_STATUS_CONNECTION_RESET, ENETRESET},
 310 #ifdef ENOTUNIQ
 311         {NT_STATUS_IP_ADDRESS_CONFLICT1, ENOTUNIQ},
 312         {NT_STATUS_IP_ADDRESS_CONFLICT2, ENOTUNIQ},
 313 #endif
 314         {NT_STATUS_PORT_MESSAGE_TOO_LONG, EMSGSIZE},
 315         {NT_STATUS_PROTOCOL_UNREACHABLE, ENOPROTOOPT},
 316         {NT_STATUS_ADDRESS_ALREADY_EXISTS, EADDRINUSE},
 317         {NT_STATUS_PORT_UNREACHABLE, EHOSTUNREACH},
 318         {NT_STATUS_IO_TIMEOUT, ETIMEDOUT},
 319         {NT_STATUS_RETRY, EAGAIN},
 320 #ifdef ENOTUNIQ
 321         {NT_STATUS_DUPLICATE_NAME, ENOTUNIQ},
 322 #endif
 323 #ifdef ECOMM
 324         {NT_STATUS_NET_WRITE_FAULT, ECOMM},
 325 #endif
 326
 327         {NT_STATUS(0), 0}
 328 };
 329
 330 static int cli_errno_from_nt(NTSTATUS status)
 331 {
 332         int i;
 333         DEBUG(10,("cli_errno_from_nt: 32 bit codes: code=%08x\n", NT_STATUS_V(status)));
 334
 335         /* Status codes without this bit set are not errors */
 336
 337         if (!(NT_STATUS_V(status) & 0xc0000000))
 338                 return 0;
 339
 340         for (i=0;nt_errno_map[i].error;i++) {
 341                 if (NT_STATUS_V(nt_errno_map[i].status) ==
 342                     NT_STATUS_V(status)) return nt_errno_map[i].error;
 343         }
 344
 345         /* for all other cases - a default code */
 346         return EINVAL;
 347 }
 348
 349 /* Return a UNIX errno appropriate for the error received in the last
 350    packet. */
 351
 352 int cli_errno(struct cli_state *cli)
 353 {
 354         NTSTATUS status;
 355
 356         if (cli_is_dos_error(cli)) {
 357                 uint8 eclass;
 358                 uint32 ecode;
 359
 360                 cli_dos_error(cli, &eclass, &ecode);
 361                 return cli_errno_from_dos(eclass, ecode);
 362         }
 363
 364         status = cli_nt_error(cli);
 365
 366         return cli_errno_from_nt(status);
 367 }
 368
 369 /* Return true if the last packet was in error */
 370
 371 BOOL cli_is_error(struct cli_state *cli)
 372 {
 373         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), rcls = 0;
 374
 375         if (cli->fd == -1 && cli->smb_rw_error != 0)
 376                 return True;
 377
 378         if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
 379                 /* Return error is error bits are set */
 380                 rcls = IVAL(cli->inbuf, smb_rcls);
 381                 return (rcls & 0xF0000000) == 0xC0000000;
 382         }
 383
 384         /* Return error if error class in non-zero */
 385
 386         rcls = CVAL(cli->inbuf, smb_rcls);
 387         return rcls != 0;
 388 }
 389
 390 /* Return true if the last error was an NT error */
 391
 392 BOOL cli_is_nt_error(struct cli_state *cli)
 393 {
 394         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
 395
 396         return cli_is_error(cli) && (flgs2 & FLAGS2_32_BIT_ERROR_CODES);
 397 }
 398
 399 /* Return true if the last error was a DOS error */
 400
 401 BOOL cli_is_dos_error(struct cli_state *cli)
 402 {
 403         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
 404
 405         return cli_is_error(cli) && !(flgs2 & FLAGS2_32_BIT_ERROR_CODES);
 406 }