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Diffstat (limited to 'winsup/cygwin/mount.h')
| -rw-r--r-- | winsup/cygwin/mount.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/winsup/cygwin/mount.h b/winsup/cygwin/mount.h new file mode 100644 index 000000000..45e7a8484 --- /dev/null +++ b/winsup/cygwin/mount.h @@ -0,0 +1,149 @@ +/* mount.h: mount definitions. + + Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008 Red Hat, Inc. + +This file is part of Cygwin. + +This software is a copyrighted work licensed under the terms of the +Cygwin license. Please consult the file "CYGWIN_LICENSE" for +details. */ + +#ifndef _MOUNT_H +#define _MOUNT_H + +class fs_info +{ + struct status_flags + { + ULONG flags; /* Volume flags */ + ULONG samba_version; /* Samba version if available */ + ULONG name_len; /* MaximumComponentNameLength */ + unsigned is_remote_drive : 1; + unsigned has_buggy_open : 1; + unsigned has_buggy_fileid_dirinfo : 1; + unsigned has_acls : 1; + unsigned hasgood_inode : 1; + unsigned caseinsensitive : 1; + unsigned is_fat : 1; + unsigned is_ntfs : 1; + unsigned is_samba : 1; + unsigned is_nfs : 1; + unsigned is_netapp : 1; + unsigned is_cdrom : 1; + } status; + ULONG sernum; + public: + void clear () { memset (&status, 0 , sizeof status); sernum = 0UL; } + fs_info () { clear (); } + + IMPLEMENT_STATUS_FLAG (ULONG, flags) + IMPLEMENT_STATUS_FLAG (ULONG, samba_version) + IMPLEMENT_STATUS_FLAG (ULONG, name_len) + IMPLEMENT_STATUS_FLAG (bool, is_remote_drive) + IMPLEMENT_STATUS_FLAG (bool, has_buggy_open) + IMPLEMENT_STATUS_FLAG (bool, has_buggy_fileid_dirinfo) + IMPLEMENT_STATUS_FLAG (bool, has_acls) + IMPLEMENT_STATUS_FLAG (bool, hasgood_inode) + IMPLEMENT_STATUS_FLAG (bool, caseinsensitive) + IMPLEMENT_STATUS_FLAG (bool, is_fat) + IMPLEMENT_STATUS_FLAG (bool, is_ntfs) + IMPLEMENT_STATUS_FLAG (bool, is_samba) + IMPLEMENT_STATUS_FLAG (bool, is_nfs) + IMPLEMENT_STATUS_FLAG (bool, is_netapp) + IMPLEMENT_STATUS_FLAG (bool, is_cdrom) + ULONG serial_number () const { return sernum; } + + bool update (PUNICODE_STRING, HANDLE) __attribute__ ((regparm (3))); +}; + +/* Mount table entry */ + +class mount_item +{ + public: + /* FIXME: Nasty static allocation. Need to have a heap in the shared + area [with the user being able to configure at runtime the max size]. */ + /* Win32-style mounted partition source ("C:\foo\bar"). + native_path[0] == 0 for unused entries. */ + char native_path[CYG_MAX_PATH]; + int native_pathlen; + + /* POSIX-style mount point ("/foo/bar") */ + char posix_path[CYG_MAX_PATH]; + int posix_pathlen; + + unsigned flags; + + void init (const char *dev, const char *path, unsigned flags); + + struct mntent *getmntent (); + int build_win32 (char *, const char *, unsigned *, unsigned); +}; + +/* Warning: Decreasing this value will cause cygwin.dll to ignore existing + higher numbered registry entries. Don't change this number willy-nilly. + What we need is to have a more dynamic allocation scheme, but the current + scheme should be satisfactory for a long while yet. */ +#define MAX_MOUNTS 30 + +#define USER_VERSION 1 // increment when mount table changes and +#define USER_VERSION_MAGIC CYGWIN_VERSION_MAGIC (USER_MAGIC, USER_VERSION) +#define CURR_USER_MAGIC 0xb2232e71U + +class reg_key; +struct device; + +/* NOTE: Do not make gratuitous changes to the names or organization of the + below class. The layout is checksummed to determine compatibility between + different cygwin versions. */ +class mount_info +{ + public: + DWORD sys_mount_table_counter; + int nmounts; + mount_item mount[MAX_MOUNTS]; + + /* cygdrive_prefix is used as the root of the path automatically + prepended to a path when the path has no associated mount. + cygdrive_flags are the default flags for the cygdrives. */ + char cygdrive[CYG_MAX_PATH]; + size_t cygdrive_len; + unsigned cygdrive_flags; + private: + int posix_sorted[MAX_MOUNTS]; + int native_sorted[MAX_MOUNTS]; + + public: + void init (); + int add_item (const char *dev, const char *path, unsigned flags); + int del_item (const char *path, unsigned flags); + + unsigned set_flags_from_win32_path (const char *path); + int conv_to_win32_path (const char *src_path, char *dst, device&, + unsigned *flags = NULL); + int conv_to_posix_path (PWCHAR src_path, char *posix_path, + int keep_rel_p); + int conv_to_posix_path (const char *src_path, char *posix_path, + int keep_rel_p); + struct mntent *getmntent (int x); + + int write_cygdrive_info (const char *cygdrive_prefix, unsigned flags); + int get_cygdrive_info (char *user, char *system, char* user_flags, + char* system_flags); + void cygdrive_posix_path (const char *src, char *dst, int trailing_slash_p); + int get_mounts_here (const char *parent_dir, int, + PUNICODE_STRING mount_points, + PUNICODE_STRING cygd); + + private: + void sort (); + void mount_slash (); + void create_root_entry (const PWCHAR root); + + bool from_fstab_line (char *line, bool user); + bool from_fstab (bool user, WCHAR [], PWCHAR); + + int cygdrive_win32_path (const char *src, char *dst, int& unit); +}; +#endif |