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