cifs_fs_sb.h 4.2 KB

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  1. /*
  2. * fs/cifs/cifs_fs_sb.h
  3. *
  4. * Copyright (c) International Business Machines Corp., 2002,2004
  5. * Author(s): Steve French (sfrench@us.ibm.com)
  6. *
  7. * This library is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU Lesser General Public License as published
  9. * by the Free Software Foundation; either version 2.1 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This library 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
  15. * the GNU Lesser General Public License for more details.
  16. *
  17. */
  18. #include <linux/rbtree.h>
  19. #ifndef _CIFS_FS_SB_H
  20. #define _CIFS_FS_SB_H
  21. #include <linux/backing-dev.h>
  22. #define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
  23. #define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */
  24. #define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
  25. #define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
  26. #define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
  27. #define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
  28. #define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible*/
  29. #define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
  30. #define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
  31. #define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
  32. #define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */
  33. #define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */
  34. #define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
  35. #define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */
  36. #define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/
  37. #define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */
  38. #define CIFS_MOUNT_MF_SYMLINKS 0x10000 /* Minshall+French Symlinks enabled */
  39. #define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */
  40. #define CIFS_MOUNT_STRICT_IO 0x40000 /* strict cache mode */
  41. #define CIFS_MOUNT_RWPIDFORWARD 0x80000 /* use pid forwarding for rw */
  42. #define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of SB_POSIXACL in mnt_cifs_flags */
  43. #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
  44. #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
  45. #define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */
  46. #define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
  47. * root mountable
  48. */
  49. #define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */
  50. #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */
  51. #define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */
  52. #define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */
  53. #define CIFS_MOUNT_RO_CACHE 0x20000000 /* assumes share will not change */
  54. #define CIFS_MOUNT_RW_CACHE 0x40000000 /* assumes only client accessing */
  55. struct cifs_sb_info {
  56. struct rb_root tlink_tree;
  57. spinlock_t tlink_tree_lock;
  58. struct tcon_link *master_tlink;
  59. struct nls_table *local_nls;
  60. unsigned int bsize;
  61. unsigned int rsize;
  62. unsigned int wsize;
  63. unsigned long actimeo; /* attribute cache timeout (jiffies) */
  64. atomic_t active;
  65. kuid_t mnt_uid;
  66. kgid_t mnt_gid;
  67. kuid_t mnt_backupuid;
  68. kgid_t mnt_backupgid;
  69. umode_t mnt_file_mode;
  70. umode_t mnt_dir_mode;
  71. unsigned int mnt_cifs_flags;
  72. char *mountdata; /* options received at mount time or via DFS refs */
  73. struct delayed_work prune_tlinks;
  74. struct rcu_head rcu;
  75. /* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */
  76. char *prepath;
  77. /*
  78. * Path initially provided by the mount call. We might connect
  79. * to something different via DFS but we want to keep it to do
  80. * failover properly.
  81. */
  82. char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
  83. /*
  84. * Indicate whether serverino option was turned off later
  85. * (cifs_autodisable_serverino) in order to match new mounts.
  86. */
  87. bool mnt_cifs_serverino_autodisabled;
  88. };
  89. #endif /* _CIFS_FS_SB_H */