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/* mount.h: mount definitions.
Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009 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_acls : 1;
unsigned hasgood_inode : 1;
unsigned caseinsensitive : 1;
union
{
struct
{
unsigned is_fat : 1;
unsigned is_ntfs : 1;
unsigned is_samba : 1;
unsigned is_nfs : 1;
unsigned is_netapp : 1;
unsigned is_cdrom : 1;
unsigned is_udf : 1;
unsigned is_csc_cache : 1;
unsigned is_sunwnfs : 1;
unsigned is_unixfs : 1;
unsigned is_mvfs : 1;
};
unsigned long fs_flags;
};
} status;
ULONG sernum;
unsigned long got_fs () { return status.fs_flags; }
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_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)
IMPLEMENT_STATUS_FLAG (bool, is_udf)
IMPLEMENT_STATUS_FLAG (bool, is_csc_cache)
IMPLEMENT_STATUS_FLAG (bool, is_sunwnfs)
IMPLEMENT_STATUS_FLAG (bool, is_unixfs)
IMPLEMENT_STATUS_FLAG (bool, is_mvfs)
ULONG serial_number () const { return sernum; }
int has_buggy_open () const {return is_sunwnfs ();}
int has_buggy_fileid_dirinfo () const {return is_unixfs ();}
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
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];
static bool got_usr_bin;
static bool got_usr_lib;
static int root_idx;
/* 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
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