source3/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 #define NO_SYSLOG
  23
  24 #include "includes.h"
  25
  26 /*****************************************************
  27  RAP error codes - a small start but will be extended.
  28
  29  XXX: Perhaps these should move into a common function because they're
  30  duplicated in clirap2.c
  31
  32 *******************************************************/
  33
  34 static const struct
  35 {
  36   int err;
  37   const char *message;
  38 } rap_errmap[] =
  39 {
  40   {5,    "RAP5: User has insufficient privilege" },
  41   {50,   "RAP50: Not supported by server" },
  42   {65,   "RAP65: Access denied" },
  43   {86,   "RAP86: The specified password is invalid" },
  44   {2220, "RAP2220: Group does not exist" },
  45   {2221, "RAP2221: User does not exist" },
  46   {2226, "RAP2226: Operation only permitted on a Primary Domain Controller"  },
  47   {2237, "RAP2237: User is not in group" },
  48   {2242, "RAP2242: The password of this user has expired." },
  49   {2243, "RAP2243: The password of this user cannot change." },
  50   {2244, "RAP2244: This password cannot be used now (password history conflict)." },
  51   {2245, "RAP2245: The password is shorter than required." },
  52   {2246, "RAP2246: The password of this user is too recent to change."},
  53
  54   /* these really shouldn't be here ... */
  55   {0x80, "Not listening on called name"},
  56   {0x81, "Not listening for calling name"},
  57   {0x82, "Called name not present"},
  58   {0x83, "Called name present, but insufficient resources"},
  59
  60   {0, NULL}
  61 };
  62
  63 /****************************************************************************
  64   return a description of an SMB error
  65 ****************************************************************************/
  66 static const char *cli_smb_errstr(struct cli_state *cli)
  67 {
  68         return smb_dos_errstr(cli->inbuf);
  69 }
  70
  71 /***************************************************************************
  72  Return an error message - either an NT error, SMB error or a RAP error.
  73  Note some of the NT errors are actually warnings or "informational" errors
  74  in which case they can be safely ignored.
  75 ****************************************************************************/
  76
  77 const char *cli_errstr(struct cli_state *cli)
  78 {
  79         static fstring cli_error_message;
  80         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), errnum;
  81         uint8 errclass;
  82         int i;
  83
  84         if (!cli->initialised) {
  85                 fstrcpy(cli_error_message, "[Programmer's error] cli_errstr called on unitialized cli_stat struct!\n");
  86                 return cli_error_message;
  87         }
  88
  89         /* Was it server socket error ? */
  90         if (cli->fd == -1 && cli->smb_rw_error) {
  91                 switch(cli->smb_rw_error) {
  92                         case READ_TIMEOUT:
  93                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
  94                                         "Call timed out: server did not respond after %d milliseconds",
  95                                         cli->timeout);
  96                                 break;
  97                         case READ_EOF:
  98                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
  99                                         "Call returned zero bytes (EOF)" );
 100                                 break;
 101                         case READ_ERROR:
 102                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 103                                         "Read error: %s", strerror(errno) );
 104                                 break;
 105                         case WRITE_ERROR:
 106                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 107                                         "Write error: %s", strerror(errno) );
 108                                 break;
 109                         case READ_BAD_SIG:
 110                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 111                                         "Server packet had invalid SMB signature!");
 112                                 break;
 113                         default:
 114                                 slprintf(cli_error_message, sizeof(cli_error_message) - 1,
 115                                         "Unknown error code %d\n", cli->smb_rw_error );
 116                                 break;
 117                 }
 118                 return cli_error_message;
 119         }
 120
 121         /* Case #1: RAP error */
 122         if (cli->rap_error) {
 123                 for (i = 0; rap_errmap[i].message != NULL; i++) {
 124                         if (rap_errmap[i].err == cli->rap_error) {
 125                                 return rap_errmap[i].message;
 126                         }
 127                 }
 128
 129                 slprintf(cli_error_message, sizeof(cli_error_message) - 1, "RAP code %d",
 130                         cli->rap_error);
 131
 132                 return cli_error_message;
 133         }
 134
 135         /* Case #2: 32-bit NT errors */
 136         if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
 137                 NTSTATUS status = NT_STATUS(IVAL(cli->inbuf,smb_rcls));
 138
 139                 return nt_errstr(status);
 140         }
 141
 142         cli_dos_error(cli, &errclass, &errnum);
 143
 144         /* Case #3: SMB error */
 145
 146         return cli_smb_errstr(cli);
 147 }
 148
 149
 150 /* Return the 32-bit NT status code from the last packet */
 151 NTSTATUS cli_nt_error(struct cli_state *cli)
 152 {
 153         int flgs2 = SVAL(cli->inbuf,smb_flg2);
 154
 155         if (!(flgs2 & FLAGS2_32_BIT_ERROR_CODES)) {
 156                 int class  = CVAL(cli->inbuf,smb_rcls);
 157                 int code  = SVAL(cli->inbuf,smb_err);
 158                 return dos_to_ntstatus(class, code);
 159         }
 160
 161         return NT_STATUS(IVAL(cli->inbuf,smb_rcls));
 162 }
 163
 164
 165 /* Return the DOS error from the last packet - an error class and an error
 166    code. */
 167 void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
 168 {
 169         int  flgs2;
 170         char rcls;
 171         int code;
 172
 173         if(!cli->initialised) return;
 174
 175         flgs2 = SVAL(cli->inbuf,smb_flg2);
 176
 177         if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
 178                 NTSTATUS ntstatus = NT_STATUS(IVAL(cli->inbuf, smb_rcls));
 179                 ntstatus_to_dos(ntstatus, eclass, ecode);
 180                 return;
 181         }
 182
 183         rcls  = CVAL(cli->inbuf,smb_rcls);
 184         code  = SVAL(cli->inbuf,smb_err);
 185
 186         if (eclass) *eclass = rcls;
 187         if (ecode) *ecode    = code;
 188 }
 189
 190 /* Return a UNIX errno from a dos error class, error number tuple */
 191
 192 static int cli_errno_from_dos(uint8 eclass, uint32 num)
 193 {
 194         if (eclass == ERRDOS) {
 195                 switch (num) {
 196                 case ERRbadfile: return ENOENT;
 197                 case ERRbadpath: return ENOTDIR;
 198                 case ERRnoaccess: return EACCES;
 199                 case ERRfilexists: return EEXIST;
 200                 case ERRrename: return EEXIST;
 201                 case ERRbadshare: return EBUSY;
 202                 case ERRlock: return EBUSY;
 203                 case ERRinvalidname: return ENOENT;
 204                 case ERRnosuchshare: return ENODEV;
 205                 }
 206         }
 207
 208         if (eclass == ERRSRV) {
 209                 switch (num) {
 210                 case ERRbadpw: return EPERM;
 211                 case ERRaccess: return EACCES;
 212                 case ERRnoresource: return ENOMEM;
 213                 case ERRinvdevice: return ENODEV;
 214                 case ERRinvnetname: return ENODEV;
 215                 }
 216         }
 217
 218         /* for other cases */
 219         return EINVAL;
 220 }
 221
 222 /* Return a UNIX errno from a NT status code */
 223 static struct {
 224         NTSTATUS status;
 225         int error;
 226 } nt_errno_map[] = {
 227         {NT_STATUS_ACCESS_VIOLATION, EACCES},
 228         {NT_STATUS_INVALID_HANDLE, EBADF},
 229         {NT_STATUS_ACCESS_DENIED, EACCES},
 230         {NT_STATUS_OBJECT_NAME_NOT_FOUND, ENOENT},
 231         {NT_STATUS_SHARING_VIOLATION, EBUSY},
 232         {NT_STATUS_OBJECT_PATH_INVALID, ENOTDIR},
 233         {NT_STATUS_OBJECT_NAME_COLLISION, EEXIST},
 234         {NT_STATUS_PATH_NOT_COVERED, ENOENT},
 235         {NT_STATUS_UNSUCCESSFUL, EINVAL},
 236         {NT_STATUS_NOT_IMPLEMENTED, ENOSYS},
 237         {NT_STATUS_IN_PAGE_ERROR, EFAULT},
 238         {NT_STATUS_BAD_NETWORK_NAME, ENOENT},
 239 #ifdef EDQUOT
 240         {NT_STATUS_PAGEFILE_QUOTA, EDQUOT},
 241         {NT_STATUS_QUOTA_EXCEEDED, EDQUOT},
 242         {NT_STATUS_REGISTRY_QUOTA_LIMIT, EDQUOT},
 243         {NT_STATUS_LICENSE_QUOTA_EXCEEDED, EDQUOT},
 244 #endif
 245 #ifdef ETIME
 246         {NT_STATUS_TIMER_NOT_CANCELED, ETIME},
 247 #endif
 248         {NT_STATUS_INVALID_PARAMETER, EINVAL},
 249         {NT_STATUS_NO_SUCH_DEVICE, ENODEV},
 250         {NT_STATUS_NO_SUCH_FILE, ENOENT},
 251 #ifdef ENODATA
 252         {NT_STATUS_END_OF_FILE, ENODATA},
 253 #endif
 254 #ifdef ENOMEDIUM
 255         {NT_STATUS_NO_MEDIA_IN_DEVICE, ENOMEDIUM},
 256         {NT_STATUS_NO_MEDIA, ENOMEDIUM},
 257 #endif
 258         {NT_STATUS_NONEXISTENT_SECTOR, ESPIPE},
 259         {NT_STATUS_NO_MEMORY, ENOMEM},
 260         {NT_STATUS_CONFLICTING_ADDRESSES, EADDRINUSE},
 261         {NT_STATUS_NOT_MAPPED_VIEW, EINVAL},
 262         {NT_STATUS_UNABLE_TO_FREE_VM, EADDRINUSE},
 263         {NT_STATUS_ACCESS_DENIED, EACCES},
 264         {NT_STATUS_BUFFER_TOO_SMALL, ENOBUFS},
 265         {NT_STATUS_WRONG_PASSWORD, EACCES},
 266         {NT_STATUS_LOGON_FAILURE, EACCES},
 267         {NT_STATUS_INVALID_WORKSTATION, EACCES},
 268         {NT_STATUS_INVALID_LOGON_HOURS, EACCES},
 269         {NT_STATUS_PASSWORD_EXPIRED, EACCES},
 270         {NT_STATUS_ACCOUNT_DISABLED, EACCES},
 271         {NT_STATUS_DISK_FULL, ENOSPC},
 272         {NT_STATUS_INVALID_PIPE_STATE, EPIPE},
 273         {NT_STATUS_PIPE_BUSY, EPIPE},
 274         {NT_STATUS_PIPE_DISCONNECTED, EPIPE},
 275         {NT_STATUS_PIPE_NOT_AVAILABLE, ENOSYS},
 276         {NT_STATUS_FILE_IS_A_DIRECTORY, EISDIR},
 277         {NT_STATUS_NOT_SUPPORTED, ENOSYS},
 278         {NT_STATUS_NOT_A_DIRECTORY, ENOTDIR},
 279         {NT_STATUS_DIRECTORY_NOT_EMPTY, ENOTEMPTY},
 280         {NT_STATUS_NETWORK_UNREACHABLE, ENETUNREACH},
 281         {NT_STATUS_HOST_UNREACHABLE, EHOSTUNREACH},
 282         {NT_STATUS_CONNECTION_ABORTED, ECONNABORTED},
 283         {NT_STATUS_CONNECTION_REFUSED, ECONNREFUSED},
 284         {NT_STATUS_TOO_MANY_LINKS, EMLINK},
 285         {NT_STATUS_NETWORK_BUSY, EBUSY},
 286         {NT_STATUS_DEVICE_DOES_NOT_EXIST, ENODEV},
 287 #ifdef ELIBACC
 288         {NT_STATUS_DLL_NOT_FOUND, ELIBACC},
 289 #endif
 290         {NT_STATUS_PIPE_BROKEN, EPIPE},
 291         {NT_STATUS_REMOTE_NOT_LISTENING, ECONNREFUSED},
 292         {NT_STATUS_NETWORK_ACCESS_DENIED, EACCES},
 293         {NT_STATUS_TOO_MANY_OPENED_FILES, EMFILE},
 294 #ifdef EPROTO
 295         {NT_STATUS_DEVICE_PROTOCOL_ERROR, EPROTO},
 296 #endif
 297         {NT_STATUS_FLOAT_OVERFLOW, ERANGE},
 298         {NT_STATUS_FLOAT_UNDERFLOW, ERANGE},
 299         {NT_STATUS_INTEGER_OVERFLOW, ERANGE},
 300         {NT_STATUS_MEDIA_WRITE_PROTECTED, EROFS},
 301         {NT_STATUS_PIPE_CONNECTED, EISCONN},
 302         {NT_STATUS_MEMORY_NOT_ALLOCATED, EFAULT},
 303         {NT_STATUS_FLOAT_INEXACT_RESULT, ERANGE},
 304         {NT_STATUS_ILL_FORMED_PASSWORD, EACCES},
 305         {NT_STATUS_PASSWORD_RESTRICTION, EACCES},
 306         {NT_STATUS_ACCOUNT_RESTRICTION, EACCES},
 307         {NT_STATUS_PORT_CONNECTION_REFUSED, ECONNREFUSED},
 308         {NT_STATUS_NAME_TOO_LONG, ENAMETOOLONG},
 309         {NT_STATUS_REMOTE_DISCONNECT, ESHUTDOWN},
 310         {NT_STATUS_CONNECTION_DISCONNECTED, ECONNABORTED},
 311         {NT_STATUS_CONNECTION_RESET, ENETRESET},
 312 #ifdef ENOTUNIQ
 313         {NT_STATUS_IP_ADDRESS_CONFLICT1, ENOTUNIQ},
 314         {NT_STATUS_IP_ADDRESS_CONFLICT2, ENOTUNIQ},
 315 #endif
 316         {NT_STATUS_PORT_MESSAGE_TOO_LONG, EMSGSIZE},
 317         {NT_STATUS_PROTOCOL_UNREACHABLE, ENOPROTOOPT},
 318         {NT_STATUS_ADDRESS_ALREADY_EXISTS, EADDRINUSE},
 319         {NT_STATUS_PORT_UNREACHABLE, EHOSTUNREACH},
 320         {NT_STATUS_IO_TIMEOUT, ETIMEDOUT},
 321         {NT_STATUS_RETRY, EAGAIN},
 322 #ifdef ECOMM
 323         {NT_STATUS_NET_WRITE_FAULT, ECOMM},
 324 #endif
 325
 326         {NT_STATUS(0), 0}
 327 };
 328
 329 static int cli_errno_from_nt(NTSTATUS status)
 330 {
 331         int i;
 332         DEBUG(10,("cli_errno_from_nt: 32 bit codes: code=%08x\n", NT_STATUS_V(status)));
 333
 334         /* Status codes without this bit set are not errors */
 335
 336         if (!(NT_STATUS_V(status) & 0xc0000000))
 337                 return 0;
 338
 339         for (i=0;nt_errno_map[i].error;i++) {
 340                 if (NT_STATUS_V(nt_errno_map[i].status) ==
 341                     NT_STATUS_V(status)) return nt_errno_map[i].error;
 342         }
 343
 344         /* for all other cases - a default code */
 345         return EINVAL;
 346 }
 347
 348 /* Return a UNIX errno appropriate for the error received in the last
 349    packet. */
 350
 351 int cli_errno(struct cli_state *cli)
 352 {
 353         NTSTATUS status;
 354
 355         if (cli_is_dos_error(cli)) {
 356                 uint8 eclass;
 357                 uint32 ecode;
 358
 359                 cli_dos_error(cli, &eclass, &ecode);
 360                 return cli_errno_from_dos(eclass, ecode);
 361         }
 362
 363         status = cli_nt_error(cli);
 364
 365         return cli_errno_from_nt(status);
 366 }
 367
 368 /* Return true if the last packet was in error */
 369
 370 BOOL cli_is_error(struct cli_state *cli)
 371 {
 372         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), rcls = 0;
 373
 374         if (cli->fd == -1 && cli->smb_rw_error != 0)
 375                 return True;
 376
 377         if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
 378                 /* Return error is error bits are set */
 379                 rcls = IVAL(cli->inbuf, smb_rcls);
 380                 return (rcls & 0xF0000000) == 0xC0000000;
 381         }
 382
 383         /* Return error if error class in non-zero */
 384
 385         rcls = CVAL(cli->inbuf, smb_rcls);
 386         return rcls != 0;
 387 }
 388
 389 /* Return true if the last error was an NT error */
 390
 391 BOOL cli_is_nt_error(struct cli_state *cli)
 392 {
 393         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
 394
 395         return cli_is_error(cli) && (flgs2 & FLAGS2_32_BIT_ERROR_CODES);
 396 }
 397
 398 /* Return true if the last error was a DOS error */
 399
 400 BOOL cli_is_dos_error(struct cli_state *cli)
 401 {
 402         uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
 403
 404         return cli_is_error(cli) && !(flgs2 & FLAGS2_32_BIT_ERROR_CODES);
 405 }