/*
* Skeleton VFS module. Implements passthrough operation of all VFS
* calls to disk functions.
*
* Copyright (C) Tim Potter, 1999-2000
* Copyright (C) Alexander Bokovoy, 2002
*
* 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 "config.h"
#include <stdio.h>
#include <sys/stat.h>
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <errno.h>
#include <string.h>
#include <includes.h>
#include <vfs.h>
static struct vfs_ops default_vfs_ops; /* For passthrough operation */
static struct smb_vfs_handle_struct *skel_handle; /* use skel_handle->data for storing per-instance private data */
static int skel_connect(struct connection_struct *conn, const char *service, const char *user)
{
return default_vfs_ops.connect(conn, service, user);
}
static void skel_disconnect(struct connection_struct *conn)
{
default_vfs_ops.disconnect(conn);
}
static SMB_BIG_UINT skel_disk_free(struct connection_struct *conn, const char *path,
BOOL small_query, SMB_BIG_UINT *bsize,
SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
{
return default_vfs_ops.disk_free(conn, path, small_query, bsize,
dfree, dsize);
}
static DIR *skel_opendir(struct connection_struct *conn, const char *fname)
{
return default_vfs_ops.opendir(conn, fname);
}
static struct dirent *skel_readdir(struct connection_struct *conn, DIR *dirp)
{
return default_vfs_ops.readdir(conn, dirp);
}
static int skel_mkdir(struct connection_struct *conn, const char *path, mode_t mode)
{
return default_vfs_ops.mkdir(conn, path, mode);
}
static int skel_rmdir(struct connection_struct *conn, const char *path)
{
return default_vfs_ops.rmdir(conn, path);
}
static int skel_closedir(struct connection_struct *conn, DIR *dir)
{
return default_vfs_ops.closedir(conn, dir);
}
static int skel_open(struct connection_struct *conn, const char *fname, int flags, mode_t mode)
{
return default_vfs_ops.open(conn, fname, flags, mode);
}
static int skel_close(struct files_struct *fsp, int fd)
{
return default_vfs_ops.close(fsp, fd);
}
static ssize_t skel_read(struct files_struct *fsp, int fd, void *data, size_t n)
{
return default_vfs_ops.read(fsp, fd, data, n);
}
static ssize_t skel_write(struct files_struct *fsp, int fd, const void *data, size_t n)
{
return default_vfs_ops.write(fsp, fd, data, n);
}
static SMB_OFF_T skel_lseek(struct files_struct *fsp, int filedes, SMB_OFF_T offset, int whence)
{
return default_vfs_ops.lseek(fsp, filedes, offset, whence);
}
static int skel_rename(struct connection_struct *conn, const char *old, const char *new)
{
return default_vfs_ops.rename(conn, old, new);
}
static int skel_fsync(struct files_struct *fsp, int fd)
{
return default_vfs_ops.fsync(fsp, fd);
}
static int skel_stat(struct connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf)
{
return default_vfs_ops.stat(conn, fname, sbuf);
}
static int skel_fstat(struct files_struct *fsp, int fd, SMB_STRUCT_STAT *sbuf)
{
return default_vfs_ops.fstat(fsp, fd, sbuf);
}
static int skel_lstat(struct connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf)
{
return default_vfs_ops.lstat(conn, path, sbuf);
}
static int skel_unlink(struct connection_struct *conn, const char *path)
{
return default_vfs_ops.unlink(conn, path);
}
static int skel_chmod(struct connection_struct *conn, const char *path, mode_t mode)
{
return default_vfs_ops.chmod(conn, path, mode);
}
static int skel_fchmod(struct files_struct *fsp, int fd, mode_t mode)
{
return default_vfs_ops.fchmod(fsp, fd, mode);
}
static int skel_chown(struct connection_struct *conn, const char *path, uid_t uid, gid_t gid)
{
return default_vfs_ops.chown(conn, path, uid, gid);
}
static int skel_fchown(struct files_struct *fsp, int fd, uid_t uid, gid_t gid)
{
return default_vfs_ops.fchown(fsp, fd, uid, gid);
}
static int skel_chdir(struct connection_struct *conn, const char *path)
{
return default_vfs_ops.chdir(conn, path);
}
static char *skel_getwd(struct connection_struct *conn, char *buf)
{
return default_vfs_ops.getwd(conn, buf);
}
static int skel_utime(struct connection_struct *conn, const char *path, struct utimbuf *times)
{
return default_vfs_ops.utime(conn, path, times);
}
static int skel_ftruncate(struct files_struct *fsp, int fd, SMB_OFF_T offset)
{
return default_vfs_ops.ftruncate(fsp, fd, offset);
}
static BOOL skel_lock(struct files_struct *fsp, int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
{
return default_vfs_ops.lock(fsp, fd, op, offset, count, type);
}
static BOOL skel_symlink(struct connection_struct *conn, const char *oldpath, const char *newpath)
{
return default_vfs_ops.symlink(conn, oldpath, newpath);
}
static BOOL skel_readlink(struct connection_struct *conn, const char *path, char *buf, size_t bufsiz)
{
return default_vfs_ops.readlink(conn, path, buf, bufsiz);
}
static int skel_link(struct connection_struct *conn, const char *oldpath, const char *newpath)
{
return default_vfs_ops.link(conn, oldpath, newpath);
}
static int skel_mknod(struct connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev)
{
return default_vfs_ops.mknod(conn, path, mode, dev);
}
static char *skel_realpath(struct connection_struct *conn, const char *path, char *resolved_path)
{
return default_vfs_ops.realpath(conn, path, resolved_path);
}
static size_t skel_fget_nt_acl(struct files_struct *fsp, int fd, struct security_descriptor_info **ppdesc)
{
return default_vfs_ops.fget_nt_acl(fsp, fd, ppdesc);
}
static size_t skel_get_nt_acl(struct files_struct *fsp, const char *name, struct security_descriptor_info **ppdesc)
{
return default_vfs_ops.get_nt_acl(fsp, name, ppdesc);
}
static BOOL skel_fset_nt_acl(struct files_struct *fsp, int fd, uint32 security_info_sent, struct security_descriptor_info *psd)
{
return default_vfs_ops.fset_nt_acl(fsp, fd, security_info_sent, psd);
}
static BOOL skel_set_nt_acl(struct files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd)
{
return default_vfs_ops.set_nt_acl(fsp, name, security_info_sent, psd);
}
static BOOL skel_chmod_acl(struct connection_struct *conn, const char *name, mode_t mode)
{
return default_vfs_ops.chmod_acl(conn, name, mode);
}
static BOOL skel_fchmod_acl(struct files_struct *fsp, int fd, mode_t mode)
{
return default_vfs_ops.fchmod_acl(fsp, fd, mode);
}
static int skel_sys_acl_get_entry(struct connection_struct *conn, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p)
{
return default_vfs_ops.sys_acl_get_entry(conn, theacl, entry_id, entry_p);
}
static int skel_sys_acl_get_tag_type(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p)
{
return default_vfs_ops.sys_acl_get_tag_type(conn, entry_d, tag_type_p);
}
static int skel_sys_acl_get_permset(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p)
{
return default_vfs_ops.sys_acl_get_permset(conn, entry_d, permset_p);
}
static void *skel_sys_acl_get_qualifier(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d)
{
return default_vfs_ops.sys_acl_get_qualifier(conn, entry_d);
}
static SMB_ACL_T skel_sys_acl_get_file(struct connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type)
{
return default_vfs_ops.sys_acl_get_file(conn, path_p, type);
}
static SMB_ACL_T skel_sys_acl_get_fd(struct files_struct *fsp, int fd)
{
return default_vfs_ops.sys_acl_get_fd(fsp, fd);
}
static int skel_sys_acl_clear_perms(struct connection_struct *conn, SMB_ACL_PERMSET_T permset)
{
return default_vfs_ops.sys_acl_clear_perms(conn, permset);
}
static int skel_sys_acl_add_perm(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm)
{
return default_vfs_ops.sys_acl_add_perm(conn, permset, perm);
}
static char *skel_sys_acl_to_text(struct connection_struct *conn, SMB_ACL_T theacl, ssize_t *plen)
{
return default_vfs_ops.sys_acl_to_text(conn, theacl, plen);
}
static SMB_ACL_T skel_sys_acl_init(struct connection_struct *conn, int count)
{
return default_vfs_ops.sys_acl_init(conn, count);
}
static int skel_sys_acl_create_entry(struct connection_struct *conn, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
{
return default_vfs_ops.sys_acl_create_entry(conn, pacl, pentry);
}
static int skel_sys_acl_set_tag_type(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype)
{
return default_vfs_ops.sys_acl_set_tag_type(conn, entry, tagtype);
}
static int skel_sys_acl_set_qualifier(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, void *qual)
{
return default_vfs_ops.sys_acl_set_qualifier(conn, entry, qual);
}
static int skel_sys_acl_set_permset(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset)
{
return default_vfs_ops.sys_acl_set_permset(conn, entry, permset);
}
static int skel_sys_acl_valid(struct connection_struct *conn, SMB_ACL_T theacl )
{
return default_vfs_ops.sys_acl_valid(conn, theacl );
}
static int skel_sys_acl_set_file(struct connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
{
return default_vfs_ops.sys_acl_set_file(conn, name, acltype, theacl);
}
static int skel_sys_acl_set_fd(struct files_struct *fsp, int fd, SMB_ACL_T theacl)
{
return default_vfs_ops.sys_acl_set_fd(fsp, fd, theacl);
}
static int skel_sys_acl_delete_def_file(struct connection_struct *conn, const char *path)
{
return default_vfs_ops.sys_acl_delete_def_file(conn, path);
}
static int skel_sys_acl_get_perm(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm)
{
return default_vfs_ops.sys_acl_get_perm(conn, permset, perm);
}
static int skel_sys_acl_free_text(struct connection_struct *conn, char *text)
{
return default_vfs_ops.sys_acl_free_text(conn, text);
}
static int skel_sys_acl_free_acl(struct connection_struct *conn, SMB_ACL_T posix_acl)
{
return default_vfs_ops.sys_acl_free_acl(conn, posix_acl);
}
static int skel_sys_acl_free_qualifier(struct connection_struct *conn, void *qualifier, SMB_ACL_TAG_T tagtype)
{
return default_vfs_ops.sys_acl_free_qualifier(conn, qualifier, tagtype);
}
/* VFS operations structure */
static vfs_op_tuple skel_ops[] = {
/* Disk operations */
{skel_connect, SMB_VFS_OP_CONNECT, SMB_VFS_LAYER_TRANSPARENT},
{skel_disconnect, SMB_VFS_OP_DISCONNECT, SMB_VFS_LAYER_TRANSPARENT},
{skel_disk_free, SMB_VFS_OP_DISK_FREE, SMB_VFS_LAYER_TRANSPARENT},
/* Directory operations */
{skel_opendir, SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
{skel_readdir, SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT},
{skel_mkdir, SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT},
{skel_rmdir, SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
{skel_closedir, SMB_VFS_OP_CLOSEDIR, SMB_VFS_LAYER_TRANSPARENT},
/* File operations */
{skel_open, SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT},
{skel_close, SMB_VFS_OP_CLOSE, SMB_VFS_LAYER_TRANSPARENT},
{skel_read, SMB_VFS_OP_READ, SMB_VFS_LAYER_TRANSPARENT},
{skel_write, SMB_VFS_OP_WRITE, SMB_VFS_LAYER_TRANSPARENT},
{skel_lseek, SMB_VFS_OP_LSEEK, SMB_VFS_LAYER_TRANSPARENT},
{skel_rename, SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
{skel_fsync, SMB_VFS_OP_FSYNC, SMB_VFS_LAYER_TRANSPARENT},
{skel_stat, SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT},
{skel_fstat, SMB_VFS_OP_FSTAT, SMB_VFS_LAYER_TRANSPARENT},
{skel_lstat, SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT},
{skel_unlink, SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
{skel_chmod, SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
{skel_fchmod, SMB_VFS_OP_FCHMOD, SMB_VFS_LAYER_TRANSPARENT},
{skel_chown, SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
{skel_fchown, SMB_VFS_OP_FCHOWN, SMB_VFS_LAYER_TRANSPARENT},
{skel_chdir, SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT},
{skel_getwd, SMB_VFS_OP_GETWD, SMB_VFS_LAYER_TRANSPARENT},
{skel_utime, SMB_VFS_OP_UTIME, SMB_VFS_LAYER_TRANSPARENT},
{skel_ftruncate, SMB_VFS_OP_FTRUNCATE, SMB_VFS_LAYER_TRANSPARENT},
{skel_lock, SMB_VFS_OP_LOCK, SMB_VFS_LAYER_TRANSPARENT},
{skel_symlink, SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT},
{skel_readlink, SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT},
{skel_link, SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT},
{skel_mknod, SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT},
{skel_realpath, SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT},
/* NT File ACL operations */
{skel_fget_nt_acl, SMB_VFS_OP_FGET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
{skel_get_nt_acl, SMB_VFS_OP_GET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
{skel_fset_nt_acl, SMB_VFS_OP_FSET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
{skel_set_nt_acl, SMB_VFS_OP_SET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
/* POSIX ACL operations */
{skel_chmod_acl, SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT},
{skel_fchmod_acl, SMB_VFS_OP_FCHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_entry, SMB_VFS_OP_SYS_ACL_GET_ENTRY, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_tag_type, SMB_VFS_OP_SYS_ACL_GET_TAG_TYPE, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_permset, SMB_VFS_OP_SYS_ACL_GET_PERMSET, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_qualifier, SMB_VFS_OP_SYS_ACL_GET_QUALIFIER, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_file, SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_fd, SMB_VFS_OP_SYS_ACL_GET_FD, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_clear_perms, SMB_VFS_OP_SYS_ACL_CLEAR_PERMS, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_add_perm, SMB_VFS_OP_SYS_ACL_ADD_PERM, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_to_text, SMB_VFS_OP_SYS_ACL_TO_TEXT, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_init, SMB_VFS_OP_SYS_ACL_INIT, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_create_entry, SMB_VFS_OP_SYS_ACL_CREATE_ENTRY, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_set_tag_type, SMB_VFS_OP_SYS_ACL_SET_TAG_TYPE, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_set_qualifier, SMB_VFS_OP_SYS_ACL_SET_QUALIFIER, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_set_permset, SMB_VFS_OP_SYS_ACL_SET_PERMSET, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_valid, SMB_VFS_OP_SYS_ACL_VALID, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_set_file, SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_set_fd, SMB_VFS_OP_SYS_ACL_SET_FD, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_delete_def_file, SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_get_perm, SMB_VFS_OP_SYS_ACL_GET_PERM, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_free_text, SMB_VFS_OP_SYS_ACL_FREE_TEXT, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_free_acl, SMB_VFS_OP_SYS_ACL_FREE_ACL, SMB_VFS_LAYER_TRANSPARENT},
{skel_sys_acl_free_qualifier, SMB_VFS_OP_SYS_ACL_FREE_QUALIFIER, SMB_VFS_LAYER_TRANSPARENT},
{NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
};
/* VFS initialisation - return initialized vfs_op_tuple array back to Samba */
vfs_op_tuple *vfs_init(int *vfs_version, struct vfs_ops *def_vfs_ops,
struct smb_vfs_handle_struct *vfs_handle)
{
DEBUG(3, ("Initialising default vfs hooks\n"));
*vfs_version = SMB_VFS_INTERFACE_VERSION;
memcpy(&default_vfs_ops, def_vfs_ops, sizeof(struct vfs_ops));
/* Remember vfs_handle for further allocation and referencing of private
information in vfs_handle->data
*/
skel_handle = vfs_handle;
return skel_ops;
}
/* VFS finalization function */
void vfs_done(connection_struct *conn)
{
DEBUG(3, ("Finalizing default vfs hooks\n"));
}
