source3/include/libsmb_internal.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    SMB client library implementation
   4    Copyright (C) Andrew Tridgell 1998
   5    Copyright (C) Richard Sharpe 2000, 2002
   6    Copyright (C) John Terpstra 2000
   7    Copyright (C) Tom Jansen (Ninja ISD) 2002
   8    Copyright (C) Derrell Lipman 2003-2008
   9    Copyright (C) Jeremy Allison 2007, 2008
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26
  27
  28 #ifndef _LIBSMB_INTERNAL_H_
  29 #define _LIBSMB_INTERNAL_H_
  30
  31 #include "../include/libsmbclient.h"
  32 #include "libsmb/clirap.h"
  33
  34 #define SMBC_MAX_NAME  1023
  35 #define SMBC_FILE_MODE (S_IFREG | 0444)
  36 #define SMBC_DIR_MODE  (S_IFDIR | 0555)
  37
  38 /*
  39  * DOS Attribute values (used internally)
  40  */
  41 typedef struct DOS_ATTR_DESC {
  42         int mode;
  43         off_t size;
  44         time_t create_time;
  45         time_t access_time;
  46         time_t write_time;
  47         time_t change_time;
  48         SMB_INO_T inode;
  49 } DOS_ATTR_DESC;
  50
  51 /*
  52  * Extension of libsmbclient.h's #defines
  53  */
  54 #define SMB_CTX_FLAG_USE_NT_HASH (1 << 4)
  55
  56 /*
  57  * Internal flags for extended attributes
  58  */
  59
  60 /* internal mode values */
  61 #define SMBC_XATTR_MODE_ADD          1
  62 #define SMBC_XATTR_MODE_REMOVE       2
  63 #define SMBC_XATTR_MODE_REMOVE_ALL   3
  64 #define SMBC_XATTR_MODE_SET          4
  65 #define SMBC_XATTR_MODE_CHOWN        5
  66 #define SMBC_XATTR_MODE_CHGRP        6
  67
  68 #define CREATE_ACCESS_READ      READ_CONTROL_ACCESS
  69
  70 /*We should test for this in configure ... */
  71 #ifndef ENOTSUP
  72 #define ENOTSUP EOPNOTSUPP
  73 #endif
  74
  75
  76 struct _SMBCSRV {
  77         struct cli_state *cli;
  78         dev_t dev;
  79         bool no_pathinfo;
  80         bool no_pathinfo2;
  81         bool no_nt_session;
  82         struct policy_handle pol;
  83
  84         SMBCSRV *next, *prev;
  85
  86 };
  87
  88 /*
  89  * Keep directory entries in a list
  90  */
  91 struct smbc_dir_list {
  92         struct smbc_dir_list *next;
  93         struct smbc_dirent *dirent;
  94 };
  95
  96
  97 /*
  98  * Structure for open file management
  99  */
 100 struct _SMBCFILE {
 101         int cli_fd;
 102         char *fname;
 103         off_t offset;
 104         struct _SMBCSRV *srv;
 105         bool file;
 106         struct smbc_dir_list *dir_list, *dir_end, *dir_next;
 107         int dir_type, dir_error;
 108
 109         SMBCFILE *next, *prev;
 110 };
 111
 112
 113 /*
 114  * Context structure
 115  */
 116 struct SMBC_internal_data {
 117
 118         /* True when this handle is initialized */
 119         bool                                    initialized;
 120
 121         /* dirent pointer location */
 122         struct smbc_dirent                      dirent;
 123         /*
 124          * Leave room for any urlencoded filename and the comment field.
 125          *
 126          * We use (NAME_MAX * 3) plus whatever the max length of a comment is,
 127          * plus a couple of null terminators (one after the filename,
 128          * one after the comment).
 129          *
 130          * According to <linux/limits.h>, NAME_MAX is 255.  Is it longer
 131          * anyplace else?
 132          */
 133         char                                    _dirent_name[1024];
 134
 135         /*
 136          * server connection list
 137          */
 138         SMBCSRV *                               servers;
 139
 140         /*
 141          * open file/dir list
 142          */
 143         SMBCFILE *                              files;
 144
 145         /*
 146          * Support "Create Time" in get/set with the *xattr() functions, if
 147          * true.  This replaces the dos attribute strings C_TIME, A_TIME and
 148          * M_TIME with CHANGE_TIME, ACCESS_TIME and WRITE_TIME, and adds
 149          * CREATE_TIME.  Default is FALSE, i.e.  to use the old-style shorter
 150          * names and to not support CREATE time, for backward compatibility.
 151          */
 152         bool                                    full_time_names;
 153
 154         /*
 155          * The share mode of a file being opened.  To match POSIX semantics
 156          * (and maintain backward compatibility), DENY_NONE is the default.
 157          */
 158         smbc_share_mode                         share_mode;
 159
 160         /*
 161          * Authentication function which includes the context.  This will be
 162          * used if set; otherwise context->callbacks.auth_fn() will be used.
 163          */
 164         smbc_get_auth_data_with_context_fn      auth_fn_with_context;
 165
 166         /*
 167          * An opaque (to this library) user data handle which can be set
 168          * and retrieved with smbc_option_set() and smbc_option_get().
 169          */
 170         void *                                  user_data;
 171
 172         /*
 173          * Should we attempt UNIX smb encryption ?
 174          * Set to 0 if we should never attempt, set to 1 if
 175          * encryption requested, set to 2 if encryption required.
 176          */
 177         smbc_smb_encrypt_level                  smb_encryption_level;
 178
 179         /*
 180          * Should we request case sensitivity of file names?
 181          */
 182         bool                                    case_sensitive;
 183
 184         /*
 185          * Auth info needed for DFS traversal.
 186          */
 187
 188         struct user_auth_info                   *auth_info;
 189
 190         struct smbc_server_cache * server_cache;
 191
 192         /* POSIX emulation functions */
 193         struct
 194         {
 195 #if 0 /* Left in libsmbclient.h for backward compatibility */
 196                 smbc_open_fn                    open_fn;
 197                 smbc_creat_fn                   creat_fn;
 198                 smbc_read_fn                    read_fn;
 199                 smbc_write_fn                   write_fn;
 200                 smbc_unlink_fn                  unlink_fn;
 201                 smbc_rename_fn                  rename_fn;
 202                 smbc_lseek_fn                   lseek_fn;
 203                 smbc_stat_fn                    stat_fn;
 204                 smbc_fstat_fn                   fstat_fn;
 205 #endif
 206                 smbc_statvfs_fn                 statvfs_fn;
 207                 smbc_fstatvfs_fn                fstatvfs_fn;
 208                 smbc_ftruncate_fn               ftruncate_fn;
 209 #if 0 /* Left in libsmbclient.h for backward compatibility */
 210                 smbc_close_fn                   close_fn;
 211                 smbc_opendir_fn                 opendir_fn;
 212                 smbc_closedir_fn                closedir_fn;
 213                 smbc_readdir_fn                 readdir_fn;
 214                 smbc_getdents_fn                getdents_fn;
 215                 smbc_mkdir_fn                   mkdir_fn;
 216                 smbc_rmdir_fn                   rmdir_fn;
 217                 smbc_telldir_fn                 telldir_fn;
 218                 smbc_lseekdir_fn                lseekdir_fn;
 219                 smbc_fstatdir_fn                fstatdir_fn;
 220                 smbc_chmod_fn                   chmod_fn;
 221                 smbc_utimes_fn                  utimes_fn;
 222                 smbc_setxattr_fn                setxattr_fn;
 223                 smbc_getxattr_fn                getxattr_fn;
 224                 smbc_removexattr_fn             removexattr_fn;
 225                 smbc_listxattr_fn               listxattr_fn;
 226 #endif
 227         }               posix_emu;
 228
 229 #if 0 /* Left in libsmbclient.h for backward compatibility */
 230         /* Printing-related functions */
 231         struct
 232         {
 233                 smbc_print_file_fn              print_file_fn;
 234                 smbc_open_print_job_fn          open_print_job_fn;
 235                 smbc_list_print_jobs_fn         list_print_jobs_fn;
 236                 smbc_unlink_print_job_fn        unlink_print_job_fn;
 237         }               printing;
 238 #endif
 239
 240 #if 0 /* None available yet */
 241         /* SMB high-level functions */
 242         struct
 243         {
 244         }               smb;
 245
 246 #endif
 247         uint16_t        port;
 248 };
 249
 250 /* Functions in libsmb_cache.c */
 251 int
 252 SMBC_add_cached_server(SMBCCTX * context,
 253                        SMBCSRV * newsrv,
 254                        const char * server,
 255                        const char * share,
 256                        const char * workgroup,
 257                        const char * username);
 258
 259 SMBCSRV *
 260 SMBC_get_cached_server(SMBCCTX * context,
 261                        const char * server,
 262                        const char * share,
 263                        const char * workgroup,
 264                        const char * user);
 265
 266 int
 267 SMBC_remove_cached_server(SMBCCTX * context,
 268                           SMBCSRV * server);
 269
 270 int
 271 SMBC_purge_cached_servers(SMBCCTX * context);
 272
 273
 274 /* Functions in libsmb_dir.c */
 275 int
 276 SMBC_check_options(char *server,
 277                    char *share,
 278                    char *path,
 279                    char *options);
 280
 281 SMBCFILE *
 282 SMBC_opendir_ctx(SMBCCTX *context,
 283                  const char *fname);
 284
 285 int
 286 SMBC_closedir_ctx(SMBCCTX *context,
 287                   SMBCFILE *dir);
 288
 289 struct smbc_dirent *
 290 SMBC_readdir_ctx(SMBCCTX *context,
 291                  SMBCFILE *dir);
 292
 293 int
 294 SMBC_getdents_ctx(SMBCCTX *context,
 295                   SMBCFILE *dir,
 296                   struct smbc_dirent *dirp,
 297                   int count);
 298
 299 int
 300 SMBC_mkdir_ctx(SMBCCTX *context,
 301                const char *fname,
 302                mode_t mode);
 303
 304 int
 305 SMBC_rmdir_ctx(SMBCCTX *context,
 306                const char *fname);
 307
 308 off_t
 309 SMBC_telldir_ctx(SMBCCTX *context,
 310                  SMBCFILE *dir);
 311
 312 int
 313 SMBC_lseekdir_ctx(SMBCCTX *context,
 314                   SMBCFILE *dir,
 315                   off_t offset);
 316
 317 int
 318 SMBC_fstatdir_ctx(SMBCCTX *context,
 319                   SMBCFILE *dir,
 320                   struct stat *st);
 321
 322 int
 323 SMBC_chmod_ctx(SMBCCTX *context,
 324                const char *fname,
 325                mode_t newmode);
 326
 327 int
 328 SMBC_utimes_ctx(SMBCCTX *context,
 329                 const char *fname,
 330                 struct timeval *tbuf);
 331
 332 int
 333 SMBC_unlink_ctx(SMBCCTX *context,
 334                 const char *fname);
 335
 336 int
 337 SMBC_rename_ctx(SMBCCTX *ocontext,
 338                 const char *oname,
 339                 SMBCCTX *ncontext,
 340                 const char *nname);
 341
 342
 343 /* Functions in libsmb_file.c */
 344 SMBCFILE *
 345 SMBC_open_ctx(SMBCCTX *context,
 346               const char *fname,
 347               int flags,
 348               mode_t mode);
 349
 350 SMBCFILE *
 351 SMBC_creat_ctx(SMBCCTX *context,
 352                const char *path,
 353                mode_t mode);
 354
 355 ssize_t
 356 SMBC_read_ctx(SMBCCTX *context,
 357               SMBCFILE *file,
 358               void *buf,
 359               size_t count);
 360
 361 ssize_t
 362 SMBC_write_ctx(SMBCCTX *context,
 363                SMBCFILE *file,
 364                const void *buf,
 365                size_t count);
 366
 367 int
 368 SMBC_close_ctx(SMBCCTX *context,
 369                SMBCFILE *file);
 370
 371 bool
 372 SMBC_getatr(SMBCCTX * context,
 373             SMBCSRV *srv,
 374             const char *path,
 375             uint16 *mode,
 376             off_t *size,
 377             struct timespec *create_time_ts,
 378             struct timespec *access_time_ts,
 379             struct timespec *write_time_ts,
 380             struct timespec *change_time_ts,
 381             SMB_INO_T *ino);
 382
 383 bool
 384 SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path,
 385             time_t create_time,
 386             time_t access_time,
 387             time_t write_time,
 388             time_t change_time,
 389             uint16 mode);
 390
 391 off_t
 392 SMBC_lseek_ctx(SMBCCTX *context,
 393                SMBCFILE *file,
 394                off_t offset,
 395                int whence);
 396
 397 int
 398 SMBC_ftruncate_ctx(SMBCCTX *context,
 399                    SMBCFILE *file,
 400                    off_t length);
 401
 402
 403 /* Functions in libsmb_misc.c */
 404 int
 405 SMBC_dlist_contains(SMBCFILE * list, SMBCFILE *p);
 406
 407 int
 408 SMBC_errno(SMBCCTX *context,
 409            struct cli_state *c);
 410
 411
 412 /* Functions in libsmb_path.c */
 413 int
 414 SMBC_parse_path(TALLOC_CTX *ctx,
 415                 SMBCCTX *context,
 416                 const char *fname,
 417                 char **pp_workgroup,
 418                 char **pp_server,
 419                 uint16_t *p_port,
 420                 char **pp_share,
 421                 char **pp_path,
 422                 char **pp_user,
 423                 char **pp_password,
 424                 char **pp_options);
 425
 426
 427 /* Functions in libsmb_printjob.c */
 428 SMBCFILE *
 429 SMBC_open_print_job_ctx(SMBCCTX *context,
 430                         const char *fname);
 431
 432 int
 433 SMBC_print_file_ctx(SMBCCTX *c_file,
 434                     const char *fname,
 435                     SMBCCTX *c_print,
 436                     const char *printq);
 437
 438 int
 439 SMBC_list_print_jobs_ctx(SMBCCTX *context,
 440                          const char *fname,
 441                          smbc_list_print_job_fn fn);
 442
 443 int
 444 SMBC_unlink_print_job_ctx(SMBCCTX *context,
 445                           const char *fname,
 446                           int id);
 447
 448
 449 /* Functions in libsmb_server.c */
 450 int
 451 SMBC_check_server(SMBCCTX * context,
 452                   SMBCSRV * server);
 453
 454 int
 455 SMBC_remove_unused_server(SMBCCTX * context,
 456                           SMBCSRV * srv);
 457
 458 void
 459 SMBC_get_auth_data(const char *server, const char *share,
 460                    char *workgroup_buf, int workgroup_buf_len,
 461                    char *username_buf, int username_buf_len,
 462                    char *password_buf, int password_buf_len);
 463
 464 SMBCSRV *
 465 SMBC_find_server(TALLOC_CTX *ctx,
 466                  SMBCCTX *context,
 467                  const char *server,
 468                  const char *share,
 469                  char **pp_workgroup,
 470                  char **pp_username,
 471                  char **pp_password);
 472
 473 SMBCSRV *
 474 SMBC_server(TALLOC_CTX *ctx,
 475             SMBCCTX *context,
 476             bool connect_if_not_found,
 477             const char *server,
 478             uint16_t port,
 479             const char *share,
 480             char **pp_workgroup,
 481             char **pp_username,
 482             char **pp_password);
 483
 484 SMBCSRV *
 485 SMBC_attr_server(TALLOC_CTX *ctx,
 486                  SMBCCTX *context,
 487                  const char *server,
 488                  uint16_t port,
 489                  const char *share,
 490                  char **pp_workgroup,
 491                  char **pp_username,
 492                  char **pp_password);
 493
 494
 495 /* Functions in libsmb_stat.c */
 496 int
 497 SMBC_stat_ctx(SMBCCTX *context,
 498               const char *fname,
 499               struct stat *st);
 500
 501 int
 502 SMBC_fstat_ctx(SMBCCTX *context,
 503                SMBCFILE *file,
 504                struct stat *st);
 505
 506
 507 int
 508 SMBC_statvfs_ctx(SMBCCTX *context,
 509                  char *path,
 510                  struct statvfs *st);
 511
 512
 513 int
 514 SMBC_fstatvfs_ctx(SMBCCTX *context,
 515                   SMBCFILE *file,
 516                   struct statvfs *st);
 517
 518
 519 /* Functions in libsmb_xattr.c */
 520 int
 521 SMBC_setxattr_ctx(SMBCCTX *context,
 522                   const char *fname,
 523                   const char *name,
 524                   const void *value,
 525                   size_t size,
 526                   int flags);
 527
 528 int
 529 SMBC_getxattr_ctx(SMBCCTX *context,
 530                   const char *fname,
 531                   const char *name,
 532                   const void *value,
 533                   size_t size);
 534
 535 int
 536 SMBC_removexattr_ctx(SMBCCTX *context,
 537                      const char *fname,
 538                      const char *name);
 539
 540 int
 541 SMBC_listxattr_ctx(SMBCCTX *context,
 542                    const char *fname,
 543                    char *list,
 544                    size_t size);
 545
 546
 547 #endif