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Commit b102fcad authored by Alexandre Julliard's avatar Alexandre Julliard
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ntdll: Add Windows directory redirections for Wow64.

parent 639e07be
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Showing with 231 additions and 12 deletions
dlls/ntdll/directory.c
View file @ b102fcad
......@@ -158,6 +158,8 @@ static const int is_case_sensitive = FALSE;
UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */
UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
static struct file_identity windir;
static RTL_CRITICAL_SECTION dir_section;
static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
{
......@@ -1709,7 +1711,7 @@ NTSTATUS WINAPI NtQueryDirectoryFile( HANDLE handle, HANDLE event,
* There must be at least MAX_DIR_ENTRY_LEN+2 chars available at pos.
*/
static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, int length,
int check_case )
int check_case, int *is_win_dir )
{
WCHAR buffer[MAX_DIR_ENTRY_LEN];
UNICODE_STRING str;
......@@ -1729,7 +1731,11 @@ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, i
if (ret >= 0 && !used_default)
{
unix_name[pos + ret] = 0;
if (!stat( unix_name, &st )) return STATUS_SUCCESS;
if (!stat( unix_name, &st ))
{
if (is_win_dir) *is_win_dir = is_same_file( &windir, &st );
return STATUS_SUCCESS;
}
}
if (check_case) goto not_found; /* we want an exact match */
......@@ -1774,7 +1780,7 @@ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, i
strcpy( unix_name + pos, de[1].d_name );
RtlLeaveCriticalSection( &dir_section );
close( fd );
return STATUS_SUCCESS;
goto success;
}
}
ret = ntdll_umbstowcs( 0, de[0].d_name, strlen(de[0].d_name),
......@@ -1785,7 +1791,7 @@ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, i
de[1].d_name[0] ? de[1].d_name : de[0].d_name );
RtlLeaveCriticalSection( &dir_section );
close( fd );
return STATUS_SUCCESS;
goto success;
}
if (ioctl( fd, VFAT_IOCTL_READDIR_BOTH, (long)de ) == -1)
{
......@@ -1817,7 +1823,7 @@ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, i
{
strcpy( unix_name + pos, de->d_name );
closedir( dir );
return STATUS_SUCCESS;
goto success;
}
if (!is_name_8_dot_3) continue;
......@@ -1831,7 +1837,7 @@ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, i
{
strcpy( unix_name + pos, de->d_name );
closedir( dir );
return STATUS_SUCCESS;
goto success;
}
}
}
......@@ -1841,9 +1847,209 @@ static NTSTATUS find_file_in_dir( char *unix_name, int pos, const WCHAR *name, i
not_found:
unix_name[pos - 1] = 0;
return STATUS_OBJECT_PATH_NOT_FOUND;
success:
if (is_win_dir && !stat( unix_name, &st )) *is_win_dir = is_same_file( &windir, &st );
return STATUS_SUCCESS;
}
#ifndef _WIN64
static const WCHAR catrootW[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t',0};
static const WCHAR catroot2W[] = {'s','y','s','t','e','m','3','2','\\','c','a','t','r','o','o','t','2',0};
static const WCHAR driversstoreW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','s','t','o','r','e',0};
static const WCHAR driversetcW[] = {'s','y','s','t','e','m','3','2','\\','d','r','i','v','e','r','s','\\','e','t','c',0};
static const WCHAR logfilesW[] = {'s','y','s','t','e','m','3','2','\\','l','o','g','f','i','l','e','s',0};
static const WCHAR spoolW[] = {'s','y','s','t','e','m','3','2','\\','s','p','o','o','l',0};
static const WCHAR system32W[] = {'s','y','s','t','e','m','3','2',0};
static const WCHAR syswow64W[] = {'s','y','s','w','o','w','6','4',0};
static const WCHAR sysnativeW[] = {'s','y','s','n','a','t','i','v','e',0};
static const WCHAR regeditW[] = {'r','e','g','e','d','i','t','.','e','x','e',0};
static const WCHAR wow_regeditW[] = {'s','y','s','w','o','w','6','4','\\','r','e','g','e','d','i','t','.','e','x','e',0};
static struct
{
const WCHAR *source;
const WCHAR *dos_target;
const char *unix_target;
} redirects[] =
{
{ catrootW, NULL, NULL },
{ catroot2W, NULL, NULL },
{ driversstoreW, NULL, NULL },
{ driversetcW, NULL, NULL },
{ logfilesW, NULL, NULL },
{ spoolW, NULL, NULL },
{ system32W, syswow64W, NULL },
{ sysnativeW, system32W, NULL },
{ regeditW, wow_regeditW, NULL }
};
static unsigned int nb_redirects;
/***********************************************************************
* get_redirect_target
*
* Find the target unix name for a redirected dir.
*/
static const char *get_redirect_target( const char *windows_dir, const WCHAR *name )
{
int used_default, len, pos, win_len = strlen( windows_dir );
char *unix_name, *unix_target = NULL;
NTSTATUS status;
if (!(unix_name = RtlAllocateHeap( GetProcessHeap(), 0, win_len + MAX_DIR_ENTRY_LEN + 2 )))
return NULL;
memcpy( unix_name, windows_dir, win_len );
pos = win_len;
while (*name)
{
const WCHAR *end, *next;
for (end = name; *end; end++) if (IS_SEPARATOR(*end)) break;
for (next = end; *next; next++) if (!IS_SEPARATOR(*next)) break;
status = find_file_in_dir( unix_name, pos, name, end - name, FALSE, NULL );
if (status == STATUS_OBJECT_PATH_NOT_FOUND && !*next) /* not finding last element is ok */
{
len = ntdll_wcstoumbs( 0, name, end - name, unix_name + pos + 1,
MAX_DIR_ENTRY_LEN - (pos - win_len), NULL, &used_default );
if (len > 0 && !used_default)
{
unix_name[pos] = '/';
pos += len + 1;
unix_name[pos] = 0;
break;
}
}
if (status) goto done;
pos += strlen( unix_name + pos );
name = next;
}
if ((unix_target = RtlAllocateHeap( GetProcessHeap(), 0, pos - win_len )))
memcpy( unix_target, unix_name + win_len + 1, pos - win_len );
done:
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return unix_target;
}
/***********************************************************************
* init_redirects
*/
static void init_redirects(void)
{
UNICODE_STRING nt_name;
ANSI_STRING unix_name;
NTSTATUS status;
struct stat st;
unsigned int i;
if (!RtlDosPathNameToNtPathName_U( windows_dir.Buffer, &nt_name, NULL, NULL ))
{
ERR( "can't convert %s\n", debugstr_us(&windows_dir) );
return;
}
status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN_IF, FALSE );
RtlFreeUnicodeString( &nt_name );
if (status)
{
ERR( "cannot open %s (%x)\n", debugstr_us(&windows_dir), status );
return;
}
if (!stat( unix_name.Buffer, &st ))
{
windir.dev = st.st_dev;
windir.ino = st.st_ino;
nb_redirects = sizeof(redirects) / sizeof(redirects[0]);
for (i = 0; i < nb_redirects; i++)
{
if (!redirects[i].dos_target) continue;
redirects[i].unix_target = get_redirect_target( unix_name.Buffer, redirects[i].dos_target );
TRACE( "%s -> %s\n", debugstr_w(redirects[i].source), redirects[i].unix_target );
}
}
RtlFreeAnsiString( &unix_name );
}
/***********************************************************************
* match_redirect
*
* Check if path matches a redirect name. If yes, return matched length.
*/
static int match_redirect( const WCHAR *path, int len, const WCHAR *redir, int check_case )
{
int i = 0;
while (i < len && *redir)
{
if (IS_SEPARATOR(path[i]))
{
if (*redir++ != '\\') return 0;
while (i < len && IS_SEPARATOR(path[i])) i++;
continue; /* move on to next path component */
}
else if (check_case)
{
if (path[i] != *redir) return 0;
}
else
{
if (tolowerW(path[i]) != tolowerW(*redir)) return 0;
}
i++;
redir++;
}
if (*redir) return 0;
if (i < len && !IS_SEPARATOR(path[i])) return 0;
while (i < len && IS_SEPARATOR(path[i])) i++;
return i;
}
/***********************************************************************
* get_redirect_path
*
* Retrieve the Unix path corresponding to a redirected path if any.
*/
static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, int check_case )
{
unsigned int i;
int len;
for (i = 0; i < nb_redirects; i++)
{
if ((len = match_redirect( name, length, redirects[i].source, check_case )))
{
if (!redirects[i].unix_target) break;
unix_name[pos++] = '/';
strcpy( unix_name + pos, redirects[i].unix_target );
return len;
}
}
return 0;
}
#else /* _WIN64 */
/* there are no redirects on 64-bit */
static const unsigned int nb_redirects = 0;
static int get_redirect_path( char *unix_name, int pos, const WCHAR *name, int length, int check_case )
{
return 0;
}
#endif
/***********************************************************************
* DIR_init_windows_dir
*/
......@@ -1853,6 +2059,10 @@ void DIR_init_windows_dir( const WCHAR *win, const WCHAR *sys )
RtlCreateUnicodeString( &windows_dir, win );
RtlCreateUnicodeString( &system_dir, sys );
#ifndef _WIN64
if (is_wow64) init_redirects();
#endif
}
......@@ -1984,6 +2194,7 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
int pos, ret, name_len, unix_len, prefix_len, used_default;
WCHAR prefix[MAX_DIR_ENTRY_LEN];
BOOLEAN is_unix = FALSE;
const BOOL redirect = nb_redirects && ntdll_get_thread_data()->wow64_redir;
name = nameW->Buffer;
name_len = nameW->Length / sizeof(WCHAR);
......@@ -2080,7 +2291,7 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
char *p;
unix_name[pos + ret] = 0;
for (p = unix_name + pos ; *p; p++) if (*p == '\\') *p = '/';
if (!stat( unix_name, &st ))
if ((!redirect || !strstr( unix_name, "/windows/")) && !stat( unix_name, &st ))
{
/* creation fails with STATUS_ACCESS_DENIED for the root of the drive */
if (disposition == FILE_CREATE)
......@@ -2097,7 +2308,7 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return STATUS_OBJECT_PATH_NOT_FOUND;
}
if (check_case && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
if (check_case && !redirect && (disposition == FILE_OPEN || disposition == FILE_OVERWRITE))
{
RtlFreeHeap( GetProcessHeap(), 0, unix_name );
return STATUS_OBJECT_NAME_NOT_FOUND;
......@@ -2108,6 +2319,7 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
while (name_len)
{
const WCHAR *end, *next;
int is_win_dir = 0;
end = name;
while (end < name + name_len && !IS_SEPARATOR(*end)) end++;
......@@ -2129,7 +2341,8 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
unix_name = new_name;
}
status = find_file_in_dir( unix_name, pos, name, end - name, check_case );
status = find_file_in_dir( unix_name, pos, name, end - name,
check_case, redirect ? &is_win_dir : NULL );
/* if this is the last element, not finding it is not necessarily fatal */
if (!name_len)
......@@ -2166,10 +2379,16 @@ NTSTATUS CDECL wine_nt_to_unix_file_name( const UNICODE_STRING *nameW, ANSI_STRI
pos += strlen( unix_name + pos );
name = next;
}
WARN( "%s -> %s required a case-insensitive search\n",
debugstr_us(nameW), debugstr_a(unix_name) );
if (is_win_dir && (prefix_len = get_redirect_path( unix_name, pos, name, name_len, check_case )))
{
name += prefix_len;
name_len -= prefix_len;
pos += strlen( unix_name + pos );
TRACE( "redirecting %s -> %s + %s\n",
debugstr_us(nameW), debugstr_a(unix_name), debugstr_w(name) );
}
}
done:
TRACE( "%s -> %s\n", debugstr_us(nameW), debugstr_a(unix_name) );
......
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