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         struct smbc_dirent                      dirent;
 118         /*
 119          * Leave room for any urlencoded filename and the comment field.
 120          *
 121          * We use (NAME_MAX * 3) plus whatever the max length of a comment is,
 122          * plus a couple of null terminators (one after the filename,
 123          * one after the comment).
 124          *
 125          * According to <linux/limits.h>, NAME_MAX is 255.  Is it longer
 126          * anyplace else?
 127          */
 128         char                                    _dirent_name[1024];
 129
 130         /*
 131          * server connection list
 132          */
 133         SMBCSRV *                               servers;
 134
 135         /*
 136          * open file/dir list
 137          */
 138         SMBCFILE *                              files;
 139
 140         /*
 141          * Log to standard error instead of the more typical standard output
 142          */
 143         bool                                    debug_stderr;
 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         struct smbc_server_cache * server_cache;
 185
 186         /* POSIX emulation functions */
 187         struct
 188         {
 189 #if 0 /* Left in libsmbclient.h for backward compatibility */
 190                 smbc_open_fn                    open_fn;
 191                 smbc_creat_fn                   creat_fn;
 192                 smbc_read_fn                    read_fn;
 193                 smbc_write_fn                   write_fn;
 194                 smbc_unlink_fn                  unlink_fn;
 195                 smbc_rename_fn                  rename_fn;
 196                 smbc_lseek_fn                   lseek_fn;
 197                 smbc_stat_fn                    stat_fn;
 198                 smbc_fstat_fn                   fstat_fn;
 199 #endif
 200                 smbc_statvfs_fn                 statvfs_fn;
 201                 smbc_fstatvfs_fn                fstatvfs_fn;
 202                 smbc_ftruncate_fn               ftruncate_fn;
 203 #if 0 /* Left in libsmbclient.h for backward compatibility */
 204                 smbc_close_fn                   close_fn;
 205                 smbc_opendir_fn                 opendir_fn;
 206                 smbc_closedir_fn                closedir_fn;
 207                 smbc_readdir_fn                 readdir_fn;
 208                 smbc_getdents_fn                getdents_fn;
 209                 smbc_mkdir_fn                   mkdir_fn;
 210                 smbc_rmdir_fn                   rmdir_fn;
 211                 smbc_telldir_fn                 telldir_fn;
 212                 smbc_lseekdir_fn                lseekdir_fn;
 213                 smbc_fstatdir_fn                fstatdir_fn;
 214                 smbc_chmod_fn                   chmod_fn;
 215                 smbc_utimes_fn                  utimes_fn;
 216                 smbc_setxattr_fn                setxattr_fn;
 217                 smbc_getxattr_fn                getxattr_fn;
 218                 smbc_removexattr_fn             removexattr_fn;
 219                 smbc_listxattr_fn               listxattr_fn;
 220 #endif
 221         }               posix_emu;
 222
 223 #if 0 /* Left in libsmbclient.h for backward compatibility */
 224         /* Printing-related functions */
 225         struct
 226         {
 227                 smbc_print_file_fn              print_file_fn;
 228                 smbc_open_print_job_fn          open_print_job_fn;
 229                 smbc_list_print_jobs_fn         list_print_jobs_fn;
 230                 smbc_unlink_print_job_fn        unlink_print_job_fn;
 231         }               printing;
 232 #endif
 233
 234 #if 0 /* None available yet */
 235         /* SMB high-level functions */
 236         struct
 237         {
 238         }               smb;
 239
 240 #endif
 241 };
 242
 243 /* Functions in libsmb_cache.c */
 244 int
 245 SMBC_add_cached_server(SMBCCTX * context,
 246                        SMBCSRV * newsrv,
 247                        const char * server,
 248                        const char * share,
 249                        const char * workgroup,
 250                        const char * username);
 251
 252 SMBCSRV *
 253 SMBC_get_cached_server(SMBCCTX * context,
 254                        const char * server,
 255                        const char * share,
 256                        const char * workgroup,
 257                        const char * user);
 258
 259 int
 260 SMBC_remove_cached_server(SMBCCTX * context,
 261                           SMBCSRV * server);
 262
 263 int
 264 SMBC_purge_cached_servers(SMBCCTX * context);
 265
 266
 267 /* Functions in libsmb_dir.c */
 268 int
 269 SMBC_check_options(char *server,
 270                    char *share,
 271                    char *path,
 272                    char *options);
 273
 274 SMBCFILE *
 275 SMBC_opendir_ctx(SMBCCTX *context,
 276                  const char *fname);
 277
 278 int
 279 SMBC_closedir_ctx(SMBCCTX *context,
 280                   SMBCFILE *dir);
 281
 282 struct smbc_dirent *
 283 SMBC_readdir_ctx(SMBCCTX *context,
 284                  SMBCFILE *dir);
 285
 286 int
 287 SMBC_getdents_ctx(SMBCCTX *context,
 288                   SMBCFILE *dir,
 289                   struct smbc_dirent *dirp,
 290                   int count);
 291
 292 int
 293 SMBC_mkdir_ctx(SMBCCTX *context,
 294                const char *fname,
 295                mode_t mode);
 296
 297 int
 298 SMBC_rmdir_ctx(SMBCCTX *context,
 299                const char *fname);
 300
 301 off_t
 302 SMBC_telldir_ctx(SMBCCTX *context,
 303                  SMBCFILE *dir);
 304
 305 int
 306 SMBC_lseekdir_ctx(SMBCCTX *context,
 307                   SMBCFILE *dir,
 308                   off_t offset);
 309
 310 int
 311 SMBC_fstatdir_ctx(SMBCCTX *context,
 312                   SMBCFILE *dir,
 313                   struct stat *st);
 314
 315 int
 316 SMBC_chmod_ctx(SMBCCTX *context,
 317                const char *fname,
 318                mode_t newmode);
 319
 320 int
 321 SMBC_utimes_ctx(SMBCCTX *context,
 322                 const char *fname,
 323                 struct timeval *tbuf);
 324
 325 int
 326 SMBC_unlink_ctx(SMBCCTX *context,
 327                 const char *fname);
 328
 329 int
 330 SMBC_rename_ctx(SMBCCTX *ocontext,
 331                 const char *oname,
 332                 SMBCCTX *ncontext,
 333                 const char *nname);
 334
 335
 336 /* Functions in libsmb_file.c */
 337 SMBCFILE *
 338 SMBC_open_ctx(SMBCCTX *context,
 339               const char *fname,
 340               int flags,
 341               mode_t mode);
 342
 343 SMBCFILE *
 344 SMBC_creat_ctx(SMBCCTX *context,
 345                const char *path,
 346                mode_t mode);
 347
 348 ssize_t
 349 SMBC_read_ctx(SMBCCTX *context,
 350               SMBCFILE *file,
 351               void *buf,
 352               size_t count);
 353
 354 ssize_t
 355 SMBC_write_ctx(SMBCCTX *context,
 356                SMBCFILE *file,
 357                const void *buf,
 358                size_t count);
 359
 360 int
 361 SMBC_close_ctx(SMBCCTX *context,
 362                SMBCFILE *file);
 363
 364 bool
 365 SMBC_getatr(SMBCCTX * context,
 366             SMBCSRV *srv,
 367             char *path,
 368             uint16 *mode,
 369             SMB_OFF_T *size,
 370             struct timespec *create_time_ts,
 371             struct timespec *access_time_ts,
 372             struct timespec *write_time_ts,
 373             struct timespec *change_time_ts,
 374             SMB_INO_T *ino);
 375
 376 bool
 377 SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path,
 378             time_t create_time,
 379             time_t access_time,
 380             time_t write_time,
 381             time_t change_time,
 382             uint16 mode);
 383
 384 off_t
 385 SMBC_lseek_ctx(SMBCCTX *context,
 386                SMBCFILE *file,
 387                off_t offset,
 388                int whence);
 389
 390 int
 391 SMBC_ftruncate_ctx(SMBCCTX *context,
 392                    SMBCFILE *file,
 393                    off_t length);
 394
 395
 396 /* Functions in libsmb_misc.c */
 397 int
 398 SMBC_dlist_contains(SMBCFILE * list, SMBCFILE *p);
 399
 400 int
 401 SMBC_errno(SMBCCTX *context,
 402            struct cli_state *c);
 403
 404
 405 /* Functions in libsmb_path.c */
 406 int
 407 SMBC_parse_path(TALLOC_CTX *ctx,
 408                 SMBCCTX *context,
 409                 const char *fname,
 410                 char **pp_workgroup,
 411                 char **pp_server,
 412                 char **pp_share,
 413                 char **pp_path,
 414                 char **pp_user,
 415                 char **pp_password,
 416                 char **pp_options);
 417
 418
 419 /* Functions in libsmb_printjob.c */
 420 SMBCFILE *
 421 SMBC_open_print_job_ctx(SMBCCTX *context,
 422                         const char *fname);
 423
 424 int
 425 SMBC_print_file_ctx(SMBCCTX *c_file,
 426                     const char *fname,
 427                     SMBCCTX *c_print,
 428                     const char *printq);
 429
 430 int
 431 SMBC_list_print_jobs_ctx(SMBCCTX *context,
 432                          const char *fname,
 433                          smbc_list_print_job_fn fn);
 434
 435 int
 436 SMBC_unlink_print_job_ctx(SMBCCTX *context,
 437                           const char *fname,
 438                           int id);
 439
 440
 441 /* Functions in libsmb_server.c */
 442 int
 443 SMBC_check_server(SMBCCTX * context,
 444                   SMBCSRV * server);
 445
 446 int
 447 SMBC_remove_unused_server(SMBCCTX * context,
 448                           SMBCSRV * srv);
 449
 450 void
 451 SMBC_call_auth_fn(TALLOC_CTX *ctx,
 452                   SMBCCTX *context,
 453                   const char *server,
 454                   const char *share,
 455                   char **pp_workgroup,
 456                   char **pp_username,
 457                   char **pp_password);
 458
 459 void
 460 SMBC_get_auth_data(const char *server, const char *share,
 461                    char *workgroup_buf, int workgroup_buf_len,
 462                    char *username_buf, int username_buf_len,
 463                    char *password_buf, int password_buf_len);
 464
 465 SMBCSRV *
 466 SMBC_find_server(TALLOC_CTX *ctx,
 467                  SMBCCTX *context,
 468                  const char *server,
 469                  const char *share,
 470                  char **pp_workgroup,
 471                  char **pp_username,
 472                  char **pp_password);
 473
 474 SMBCSRV *
 475 SMBC_server(TALLOC_CTX *ctx,
 476             SMBCCTX *context,
 477             bool connect_if_not_found,
 478             const char *server,
 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                  const char *share,
 489                  char **pp_workgroup,
 490                  char **pp_username,
 491                  char **pp_password);
 492
 493
 494 /* Functions in libsmb_stat.c */
 495 int
 496 SMBC_stat_ctx(SMBCCTX *context,
 497               const char *fname,
 498               struct stat *st);
 499
 500 int
 501 SMBC_fstat_ctx(SMBCCTX *context,
 502                SMBCFILE *file,
 503                struct stat *st);
 504
 505
 506 int
 507 SMBC_statvfs_ctx(SMBCCTX *context,
 508                  char *path,
 509                  struct statvfs *st);
 510
 511
 512 int
 513 SMBC_fstatvfs_ctx(SMBCCTX *context,
 514                   SMBCFILE *file,
 515                   struct statvfs *st);
 516
 517
 518 /* Functions in libsmb_xattr.c */
 519 int
 520 SMBC_setxattr_ctx(SMBCCTX *context,
 521                   const char *fname,
 522                   const char *name,
 523                   const void *value,
 524                   size_t size,
 525                   int flags);
 526
 527 int
 528 SMBC_getxattr_ctx(SMBCCTX *context,
 529                   const char *fname,
 530                   const char *name,
 531                   const void *value,
 532                   size_t size);
 533
 534 int
 535 SMBC_removexattr_ctx(SMBCCTX *context,
 536                      const char *fname,
 537                      const char *name);
 538
 539 int
 540 SMBC_listxattr_ctx(SMBCCTX *context,
 541                    const char *fname,
 542                    char *list,
 543                    size_t size);
 544
 545
 546 #endif