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_pathinfo3;
  82         bool no_nt_session;
  83         struct policy_handle pol;
  84         time_t last_echo_time;
  85
  86         SMBCSRV *next, *prev;
  87 };
  88
  89 /*
  90  * Keep directory entries in a list
  91  */
  92 struct smbc_dir_list {
  93         struct smbc_dir_list *next;
  94         struct smbc_dirent *dirent;
  95 };
  96
  97
  98 /*
  99  * Structure for open file management
 100  */
 101 struct _SMBCFILE {
 102         int cli_fd;
 103         /*
 104          * cache of cli_state we opened cli_fd on.
 105          * Due to DFS can be a subsidiary connection to srv->cli
 106          */
 107         struct cli_state *targetcli;
 108         char *fname;
 109         off_t offset;
 110         struct _SMBCSRV *srv;
 111         bool file;
 112         struct smbc_dir_list *dir_list, *dir_end, *dir_next;
 113         int dir_type, dir_error;
 114
 115         SMBCFILE *next, *prev;
 116 };
 117
 118
 119 /*
 120  * Context structure
 121  */
 122 struct SMBC_internal_data {
 123
 124         /* True when this handle is initialized */
 125         bool                                    initialized;
 126
 127         /* dirent pointer location */
 128         struct smbc_dirent                      dirent;
 129         /*
 130          * Leave room for any urlencoded filename and the comment field.
 131          *
 132          * We use (NAME_MAX * 3) plus whatever the max length of a comment is,
 133          * plus a couple of null terminators (one after the filename,
 134          * one after the comment).
 135          *
 136          * According to <linux/limits.h>, NAME_MAX is 255.  Is it longer
 137          * anyplace else?
 138          */
 139         char                                    _dirent_name[1024];
 140
 141         /*
 142          * server connection list
 143          */
 144         SMBCSRV *                               servers;
 145
 146         /*
 147          * open file/dir list
 148          */
 149         SMBCFILE *                              files;
 150
 151         /*
 152          * Support "Create Time" in get/set with the *xattr() functions, if
 153          * true.  This replaces the dos attribute strings C_TIME, A_TIME and
 154          * M_TIME with CHANGE_TIME, ACCESS_TIME and WRITE_TIME, and adds
 155          * CREATE_TIME.  Default is FALSE, i.e.  to use the old-style shorter
 156          * names and to not support CREATE time, for backward compatibility.
 157          */
 158         bool                                    full_time_names;
 159
 160         /*
 161          * The share mode of a file being opened.  To match POSIX semantics
 162          * (and maintain backward compatibility), DENY_NONE is the default.
 163          */
 164         smbc_share_mode                         share_mode;
 165
 166         /*
 167          * Authentication function which includes the context.  This will be
 168          * used if set; otherwise context->callbacks.auth_fn() will be used.
 169          */
 170         smbc_get_auth_data_with_context_fn      auth_fn_with_context;
 171
 172         /*
 173          * An opaque (to this library) user data handle which can be set
 174          * and retrieved with smbc_option_set() and smbc_option_get().
 175          */
 176         void *                                  user_data;
 177
 178         /*
 179          * Should we attempt UNIX smb encryption ?
 180          * Set to 0 if we should never attempt, set to 1 if
 181          * encryption requested, set to 2 if encryption required.
 182          */
 183         smbc_smb_encrypt_level                  smb_encryption_level;
 184
 185         /*
 186          * Should we request case sensitivity of file names?
 187          */
 188         bool                                    case_sensitive;
 189
 190         /*
 191          * Auth info needed for DFS traversal.
 192          */
 193
 194         struct user_auth_info                   *auth_info;
 195
 196         struct smbc_server_cache * server_cache;
 197
 198         /* POSIX emulation functions */
 199         struct
 200         {
 201 #if 0 /* Left in libsmbclient.h for backward compatibility */
 202                 smbc_open_fn                    open_fn;
 203                 smbc_creat_fn                   creat_fn;
 204                 smbc_read_fn                    read_fn;
 205                 smbc_write_fn                   write_fn;
 206                 smbc_unlink_fn                  unlink_fn;
 207                 smbc_rename_fn                  rename_fn;
 208                 smbc_lseek_fn                   lseek_fn;
 209                 smbc_stat_fn                    stat_fn;
 210                 smbc_fstat_fn                   fstat_fn;
 211 #endif
 212                 smbc_statvfs_fn                 statvfs_fn;
 213                 smbc_fstatvfs_fn                fstatvfs_fn;
 214                 smbc_ftruncate_fn               ftruncate_fn;
 215 #if 0 /* Left in libsmbclient.h for backward compatibility */
 216                 smbc_close_fn                   close_fn;
 217                 smbc_opendir_fn                 opendir_fn;
 218                 smbc_closedir_fn                closedir_fn;
 219                 smbc_readdir_fn                 readdir_fn;
 220                 smbc_getdents_fn                getdents_fn;
 221                 smbc_mkdir_fn                   mkdir_fn;
 222                 smbc_rmdir_fn                   rmdir_fn;
 223                 smbc_telldir_fn                 telldir_fn;
 224                 smbc_lseekdir_fn                lseekdir_fn;
 225                 smbc_fstatdir_fn                fstatdir_fn;
 226                 smbc_chmod_fn                   chmod_fn;
 227                 smbc_utimes_fn                  utimes_fn;
 228                 smbc_setxattr_fn                setxattr_fn;
 229                 smbc_getxattr_fn                getxattr_fn;
 230                 smbc_removexattr_fn             removexattr_fn;
 231                 smbc_listxattr_fn               listxattr_fn;
 232 #endif
 233         }               posix_emu;
 234
 235 #if 0 /* Left in libsmbclient.h for backward compatibility */
 236         /* Printing-related functions */
 237         struct
 238         {
 239                 smbc_print_file_fn              print_file_fn;
 240                 smbc_open_print_job_fn          open_print_job_fn;
 241                 smbc_list_print_jobs_fn         list_print_jobs_fn;
 242                 smbc_unlink_print_job_fn        unlink_print_job_fn;
 243         }               printing;
 244 #endif
 245
 246         /* SMB high-level functions */
 247         struct
 248         {
 249                 smbc_splice_fn                  splice_fn;
 250                 smbc_notify_fn                  notify_fn;
 251         }               smb;
 252
 253         uint16_t        port;
 254 };
 255
 256 /* Functions in libsmb_cache.c */
 257 int
 258 SMBC_add_cached_server(SMBCCTX * context,
 259                        SMBCSRV * newsrv,
 260                        const char * server,
 261                        const char * share,
 262                        const char * workgroup,
 263                        const char * username);
 264
 265 SMBCSRV *
 266 SMBC_get_cached_server(SMBCCTX * context,
 267                        const char * server,
 268                        const char * share,
 269                        const char * workgroup,
 270                        const char * user);
 271
 272 int
 273 SMBC_remove_cached_server(SMBCCTX * context,
 274                           SMBCSRV * server);
 275
 276 int
 277 SMBC_purge_cached_servers(SMBCCTX * context);
 278
 279
 280 /* Functions in libsmb_dir.c */
 281 int
 282 SMBC_check_options(char *server,
 283                    char *share,
 284                    char *path,
 285                    char *options);
 286
 287 SMBCFILE *
 288 SMBC_opendir_ctx(SMBCCTX *context,
 289                  const char *fname);
 290
 291 int
 292 SMBC_closedir_ctx(SMBCCTX *context,
 293                   SMBCFILE *dir);
 294
 295 struct smbc_dirent *
 296 SMBC_readdir_ctx(SMBCCTX *context,
 297                  SMBCFILE *dir);
 298
 299 int
 300 SMBC_getdents_ctx(SMBCCTX *context,
 301                   SMBCFILE *dir,
 302                   struct smbc_dirent *dirp,
 303                   int count);
 304
 305 int
 306 SMBC_mkdir_ctx(SMBCCTX *context,
 307                const char *fname,
 308                mode_t mode);
 309
 310 int
 311 SMBC_rmdir_ctx(SMBCCTX *context,
 312                const char *fname);
 313
 314 off_t
 315 SMBC_telldir_ctx(SMBCCTX *context,
 316                  SMBCFILE *dir);
 317
 318 int
 319 SMBC_lseekdir_ctx(SMBCCTX *context,
 320                   SMBCFILE *dir,
 321                   off_t offset);
 322
 323 int
 324 SMBC_fstatdir_ctx(SMBCCTX *context,
 325                   SMBCFILE *dir,
 326                   struct stat *st);
 327
 328 int
 329 SMBC_chmod_ctx(SMBCCTX *context,
 330                const char *fname,
 331                mode_t newmode);
 332
 333 int
 334 SMBC_utimes_ctx(SMBCCTX *context,
 335                 const char *fname,
 336                 struct timeval *tbuf);
 337
 338 int
 339 SMBC_unlink_ctx(SMBCCTX *context,
 340                 const char *fname);
 341
 342 int
 343 SMBC_rename_ctx(SMBCCTX *ocontext,
 344                 const char *oname,
 345                 SMBCCTX *ncontext,
 346                 const char *nname);
 347
 348 int
 349 SMBC_notify_ctx(SMBCCTX *c, SMBCFILE *dir, smbc_bool recursive,
 350                 uint32_t completion_filter, unsigned callback_timeout_ms,
 351                 smbc_notify_callback_fn cb, void *private_data);
 352
 353
 354
 355 /* Functions in libsmb_file.c */
 356 SMBCFILE *
 357 SMBC_open_ctx(SMBCCTX *context,
 358               const char *fname,
 359               int flags,
 360               mode_t mode);
 361
 362 SMBCFILE *
 363 SMBC_creat_ctx(SMBCCTX *context,
 364                const char *path,
 365                mode_t mode);
 366
 367 ssize_t
 368 SMBC_read_ctx(SMBCCTX *context,
 369               SMBCFILE *file,
 370               void *buf,
 371               size_t count);
 372
 373 ssize_t
 374 SMBC_write_ctx(SMBCCTX *context,
 375                SMBCFILE *file,
 376                const void *buf,
 377                size_t count);
 378
 379 off_t
 380 SMBC_splice_ctx(SMBCCTX *context,
 381                 SMBCFILE *srcfile,
 382                 SMBCFILE *dstfile,
 383                 off_t count,
 384                 int (*splice_cb)(off_t n, void *priv),
 385                 void *priv);
 386
 387 int
 388 SMBC_close_ctx(SMBCCTX *context,
 389                SMBCFILE *file);
 390
 391 bool
 392 SMBC_getatr(SMBCCTX * context,
 393             SMBCSRV *srv,
 394             const char *path,
 395             uint16_t *mode,
 396             off_t *size,
 397             struct timespec *create_time_ts,
 398             struct timespec *access_time_ts,
 399             struct timespec *write_time_ts,
 400             struct timespec *change_time_ts,
 401             SMB_INO_T *ino);
 402
 403 bool
 404 SMBC_setatr(SMBCCTX * context, SMBCSRV *srv, char *path,
 405             time_t create_time,
 406             time_t access_time,
 407             time_t write_time,
 408             time_t change_time,
 409             uint16_t mode);
 410
 411 off_t
 412 SMBC_lseek_ctx(SMBCCTX *context,
 413                SMBCFILE *file,
 414                off_t offset,
 415                int whence);
 416
 417 int
 418 SMBC_ftruncate_ctx(SMBCCTX *context,
 419                    SMBCFILE *file,
 420                    off_t length);
 421
 422
 423 /* Functions in libsmb_misc.c */
 424 int
 425 SMBC_dlist_contains(SMBCFILE * list, SMBCFILE *p);
 426
 427 int
 428 SMBC_errno(SMBCCTX *context,
 429            struct cli_state *c);
 430
 431
 432 /* Functions in libsmb_path.c */
 433 int
 434 SMBC_parse_path(TALLOC_CTX *ctx,
 435                 SMBCCTX *context,
 436                 const char *fname,
 437                 char **pp_workgroup,
 438                 char **pp_server,
 439                 uint16_t *p_port,
 440                 char **pp_share,
 441                 char **pp_path,
 442                 char **pp_user,
 443                 char **pp_password,
 444                 char **pp_options);
 445
 446
 447 /* Functions in libsmb_printjob.c */
 448 SMBCFILE *
 449 SMBC_open_print_job_ctx(SMBCCTX *context,
 450                         const char *fname);
 451
 452 int
 453 SMBC_print_file_ctx(SMBCCTX *c_file,
 454                     const char *fname,
 455                     SMBCCTX *c_print,
 456                     const char *printq);
 457
 458 int
 459 SMBC_list_print_jobs_ctx(SMBCCTX *context,
 460                          const char *fname,
 461                          smbc_list_print_job_fn fn);
 462
 463 int
 464 SMBC_unlink_print_job_ctx(SMBCCTX *context,
 465                           const char *fname,
 466                           int id);
 467
 468
 469 /* Functions in libsmb_server.c */
 470 int
 471 SMBC_check_server(SMBCCTX * context,
 472                   SMBCSRV * server);
 473
 474 int
 475 SMBC_remove_unused_server(SMBCCTX * context,
 476                           SMBCSRV * srv);
 477
 478 void
 479 SMBC_get_auth_data(const char *server, const char *share,
 480                    char *workgroup_buf, int workgroup_buf_len,
 481                    char *username_buf, int username_buf_len,
 482                    char *password_buf, int password_buf_len);
 483
 484 SMBCSRV *
 485 SMBC_find_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 SMBCSRV *
 494 SMBC_server(TALLOC_CTX *ctx,
 495             SMBCCTX *context,
 496             bool connect_if_not_found,
 497             const char *server,
 498             uint16_t port,
 499             const char *share,
 500             char **pp_workgroup,
 501             char **pp_username,
 502             char **pp_password);
 503
 504 SMBCSRV *
 505 SMBC_attr_server(TALLOC_CTX *ctx,
 506                  SMBCCTX *context,
 507                  const char *server,
 508                  uint16_t port,
 509                  const char *share,
 510                  char **pp_workgroup,
 511                  char **pp_username,
 512                  char **pp_password);
 513
 514
 515 /* Functions in libsmb_stat.c */
 516 int
 517 SMBC_stat_ctx(SMBCCTX *context,
 518               const char *fname,
 519               struct stat *st);
 520
 521 int
 522 SMBC_fstat_ctx(SMBCCTX *context,
 523                SMBCFILE *file,
 524                struct stat *st);
 525
 526
 527 int
 528 SMBC_statvfs_ctx(SMBCCTX *context,
 529                  char *path,
 530                  struct statvfs *st);
 531
 532
 533 int
 534 SMBC_fstatvfs_ctx(SMBCCTX *context,
 535                   SMBCFILE *file,
 536                   struct statvfs *st);
 537
 538
 539 /* Functions in libsmb_xattr.c */
 540 int
 541 SMBC_setxattr_ctx(SMBCCTX *context,
 542                   const char *fname,
 543                   const char *name,
 544                   const void *value,
 545                   size_t size,
 546                   int flags);
 547
 548 int
 549 SMBC_getxattr_ctx(SMBCCTX *context,
 550                   const char *fname,
 551                   const char *name,
 552                   const void *value,
 553                   size_t size);
 554
 555 int
 556 SMBC_removexattr_ctx(SMBCCTX *context,
 557                      const char *fname,
 558                      const char *name);
 559
 560 int
 561 SMBC_listxattr_ctx(SMBCCTX *context,
 562                    const char *fname,
 563                    char *list,
 564                    size_t size);
 565
 566
 567 #endif