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/*
Unix SMB/CIFS implementation.
POSIX NTVFS backend -
Copyright (C) Andrew Tridgell 2004
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "vfs_posix.h"
/* UNIX filetype mappings. */
#define UNIX_TYPE_FILE 0
#define UNIX_TYPE_DIR 1
#define UNIX_TYPE_SYMLINK 2
#define UNIX_TYPE_CHARDEV 3
#define UNIX_TYPE_BLKDEV 4
#define UNIX_TYPE_FIFO 5
#define UNIX_TYPE_SOCKET 6
#define UNIX_TYPE_UNKNOWN 0xFFFFFFFF
/****************************************************************************
Change a unix mode to a dos mode.
****************************************************************************/
static uint32_t dos_mode_from_stat(struct pvfs_state *pvfs, struct stat *st)
{
int result = 0;
if ((st->st_mode & S_IWUSR) == 0)
result |= FILE_ATTRIBUTE_READONLY;
if ((pvfs->flags & PVFS_FLAG_MAP_ARCHIVE) && ((st->st_mode & S_IXUSR) != 0))
result |= FILE_ATTRIBUTE_ARCHIVE;
if ((pvfs->flags & PVFS_FLAG_MAP_SYSTEM) && ((st->st_mode & S_IXGRP) != 0))
result |= FILE_ATTRIBUTE_SYSTEM;
if ((pvfs->flags & PVFS_FLAG_MAP_HIDDEN) && ((st->st_mode & S_IXOTH) != 0))
result |= FILE_ATTRIBUTE_HIDDEN;
if (S_ISDIR(st->st_mode))
result = FILE_ATTRIBUTE_DIRECTORY | (result & FILE_ATTRIBUTE_READONLY);
if (!(result &
(FILE_ATTRIBUTE_READONLY|
FILE_ATTRIBUTE_ARCHIVE|
FILE_ATTRIBUTE_SYSTEM|
FILE_ATTRIBUTE_HIDDEN|
FILE_ATTRIBUTE_DIRECTORY))) {
result |= FILE_ATTRIBUTE_NORMAL;
}
return result;
}
/*
fill in the dos file attributes for a file
*/
NTSTATUS pvfs_fill_dos_info(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd)
{
/* make directories appear as size 0 */
if (S_ISDIR(name->st.st_mode)) {
name->st.st_size = 0;
}
/* for now just use the simple samba mapping */
unix_to_nt_time(&name->dos.create_time, name->st.st_ctime);
unix_to_nt_time(&name->dos.access_time, name->st.st_atime);
unix_to_nt_time(&name->dos.write_time, name->st.st_mtime);
unix_to_nt_time(&name->dos.change_time, name->st.st_ctime);
#ifdef HAVE_STAT_TV_NSEC
name->dos.create_time += name->st.st_ctim.tv_nsec / 100;
name->dos.access_time += name->st.st_atim.tv_nsec / 100;
name->dos.write_time += name->st.st_mtim.tv_nsec / 100;
name->dos.change_time += name->st.st_ctim.tv_nsec / 100;
#endif
name->dos.attrib = dos_mode_from_stat(pvfs, &name->st);
name->dos.alloc_size = name->st.st_size;
name->dos.nlink = name->st.st_nlink;
name->dos.ea_size = 0;
name->dos.file_id = (((uint64_t)name->st.st_dev)<<32) | name->st.st_ino;
return pvfs_dosattrib_load(pvfs, name, fd);
}
/*
return a set of unix file permissions for a new file or directory
*/
mode_t pvfs_fileperms(struct pvfs_state *pvfs, uint32 attrib)
{
mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
if (attrib & FILE_ATTRIBUTE_DIRECTORY) {
mode |= S_IXUSR | S_IXGRP | S_IXOTH;
}
if (!(attrib & FILE_ATTRIBUTE_READONLY)) {
mode |= S_IWUSR;
}
if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
if ((attrib & FILE_ATTRIBUTE_ARCHIVE) &&
(pvfs->flags & PVFS_FLAG_MAP_ARCHIVE)) {
mode |= S_IXUSR;
}
if ((attrib & FILE_ATTRIBUTE_SYSTEM) &&
(pvfs->flags & PVFS_FLAG_MAP_SYSTEM)) {
mode |= S_IXGRP;
}
if ((attrib & FILE_ATTRIBUTE_HIDDEN) &&
(pvfs->flags & PVFS_FLAG_MAP_HIDDEN)) {
mode |= S_IXOTH;
}
}
return mode;
}
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