2 * Skeleton VFS module. Implements dummy versions of all VFS
5 * Copyright (C) Tim Potter, 1999-2000
6 * Copyright (C) Alexander Bokovoy, 2002
7 * Copyright (C) Stefan (metze) Metzmacher, 2003
8 * Copyright (C) Jeremy Allison 2009
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see <http://www.gnu.org/licenses/>.
24 #include "../source3/include/includes.h"
25 #include "lib/util/tevent_ntstatus.h"
27 /* PLEASE,PLEASE READ THE VFS MODULES CHAPTER OF THE
28 SAMBA DEVELOPERS GUIDE!!!!!!
31 /* If you take this file as template for your module
32 * you must re-implement every function.
35 static int skel_connect(vfs_handle_struct *handle, const char *service,
42 static void skel_disconnect(vfs_handle_struct *handle)
47 static uint64_t skel_disk_free(vfs_handle_struct *handle, const char *path,
49 uint64_t *dfree, uint64_t *dsize)
57 static int skel_get_quota(vfs_handle_struct *handle, const char *path,
58 enum SMB_QUOTA_TYPE qtype, unid_t id,
65 static int skel_set_quota(vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype,
66 unid_t id, SMB_DISK_QUOTA *dq)
72 static int skel_get_shadow_copy_data(vfs_handle_struct *handle,
74 struct shadow_copy_data *shadow_copy_data,
81 static int skel_statvfs(struct vfs_handle_struct *handle,
82 const char *path, struct vfs_statvfs_struct *statbuf)
88 static uint32_t skel_fs_capabilities(struct vfs_handle_struct *handle,
89 enum timestamp_set_resolution *p_ts_res)
94 static NTSTATUS skel_get_dfs_referrals(struct vfs_handle_struct *handle,
95 struct dfs_GetDFSReferral *r)
97 return NT_STATUS_NOT_IMPLEMENTED;
100 static DIR *skel_opendir(vfs_handle_struct *handle,
101 const struct smb_filename *smb_fname,
108 static NTSTATUS skel_snap_check_path(struct vfs_handle_struct *handle,
110 const char *service_path,
113 return NT_STATUS_NOT_SUPPORTED;
116 static NTSTATUS skel_snap_create(struct vfs_handle_struct *handle,
118 const char *base_volume,
124 return NT_STATUS_NOT_SUPPORTED;
127 static NTSTATUS skel_snap_delete(struct vfs_handle_struct *handle,
132 return NT_STATUS_NOT_SUPPORTED;
135 static DIR *skel_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
136 const char *mask, uint32_t attr)
141 static struct dirent *skel_readdir(vfs_handle_struct *handle,
142 DIR *dirp, SMB_STRUCT_STAT *sbuf)
147 static void skel_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset)
152 static long skel_telldir(vfs_handle_struct *handle, DIR *dirp)
157 static void skel_rewind_dir(vfs_handle_struct *handle, DIR *dirp)
162 static int skel_mkdir(vfs_handle_struct *handle,
163 const struct smb_filename *smb_fname,
170 static int skel_rmdir(vfs_handle_struct *handle,
171 const struct smb_filename *smb_fname)
177 static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
183 static void skel_init_search_op(struct vfs_handle_struct *handle, DIR *dirp)
188 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
189 files_struct *fsp, int flags, mode_t mode)
195 static NTSTATUS skel_create_file(struct vfs_handle_struct *handle,
196 struct smb_request *req,
197 uint16_t root_dir_fid,
198 struct smb_filename *smb_fname,
199 uint32_t access_mask,
200 uint32_t share_access,
201 uint32_t create_disposition,
202 uint32_t create_options,
203 uint32_t file_attributes,
204 uint32_t oplock_request,
205 struct smb2_lease *lease,
206 uint64_t allocation_size,
207 uint32_t private_flags,
208 struct security_descriptor *sd,
209 struct ea_list *ea_list,
210 files_struct **result, int *pinfo,
211 const struct smb2_create_blobs *in_context_blobs,
212 struct smb2_create_blobs *out_context_blobs)
214 return NT_STATUS_NOT_IMPLEMENTED;
217 static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
223 static ssize_t skel_vfs_read(vfs_handle_struct *handle, files_struct *fsp,
224 void *data, size_t n)
230 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
231 void *data, size_t n, off_t offset)
237 static struct tevent_req *skel_pread_send(struct vfs_handle_struct *handle,
239 struct tevent_context *ev,
240 struct files_struct *fsp,
241 void *data, size_t n, off_t offset)
246 static ssize_t skel_pread_recv(struct tevent_req *req,
247 struct vfs_aio_state *vfs_aio_state)
249 vfs_aio_state->error = ENOSYS;
253 static ssize_t skel_write(vfs_handle_struct *handle, files_struct *fsp,
254 const void *data, size_t n)
260 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
261 const void *data, size_t n, off_t offset)
267 static struct tevent_req *skel_pwrite_send(struct vfs_handle_struct *handle,
269 struct tevent_context *ev,
270 struct files_struct *fsp,
272 size_t n, off_t offset)
277 static ssize_t skel_pwrite_recv(struct tevent_req *req,
278 struct vfs_aio_state *vfs_aio_state)
280 vfs_aio_state->error = ENOSYS;
284 static off_t skel_lseek(vfs_handle_struct *handle, files_struct *fsp,
285 off_t offset, int whence)
291 static ssize_t skel_sendfile(vfs_handle_struct *handle, int tofd,
292 files_struct *fromfsp, const DATA_BLOB *hdr,
293 off_t offset, size_t n)
299 static ssize_t skel_recvfile(vfs_handle_struct *handle, int fromfd,
300 files_struct *tofsp, off_t offset, size_t n)
306 static int skel_rename(vfs_handle_struct *handle,
307 const struct smb_filename *smb_fname_src,
308 const struct smb_filename *smb_fname_dst)
314 static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
320 static struct tevent_req *skel_fsync_send(struct vfs_handle_struct *handle,
322 struct tevent_context *ev,
323 struct files_struct *fsp)
328 static int skel_fsync_recv(struct tevent_req *req,
329 struct vfs_aio_state *vfs_aio_state)
331 vfs_aio_state->error = ENOSYS;
335 static int skel_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
341 static int skel_fstat(vfs_handle_struct *handle, files_struct *fsp,
342 SMB_STRUCT_STAT *sbuf)
348 static int skel_lstat(vfs_handle_struct *handle,
349 struct smb_filename *smb_fname)
355 static uint64_t skel_get_alloc_size(struct vfs_handle_struct *handle,
356 struct files_struct *fsp,
357 const SMB_STRUCT_STAT *sbuf)
363 static int skel_unlink(vfs_handle_struct *handle,
364 const struct smb_filename *smb_fname)
370 static int skel_chmod(vfs_handle_struct *handle,
371 const struct smb_filename *smb_fname,
378 static int skel_fchmod(vfs_handle_struct *handle, files_struct *fsp,
385 static int skel_chown(vfs_handle_struct *handle,
386 const struct smb_filename *smb_fname,
394 static int skel_fchown(vfs_handle_struct *handle, files_struct *fsp,
395 uid_t uid, gid_t gid)
401 static int skel_lchown(vfs_handle_struct *handle,
402 const struct smb_filename *smb_fname,
410 static int skel_chdir(vfs_handle_struct *handle, const char *path)
416 static char *skel_getwd(vfs_handle_struct *handle)
422 static int skel_ntimes(vfs_handle_struct *handle,
423 const struct smb_filename *smb_fname,
424 struct smb_file_time *ft)
430 static int skel_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
437 static int skel_fallocate(vfs_handle_struct *handle, files_struct *fsp,
438 uint32_t mode, off_t offset, off_t len)
444 static bool skel_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
445 off_t offset, off_t count, int type)
451 static int skel_kernel_flock(struct vfs_handle_struct *handle,
452 struct files_struct *fsp,
453 uint32_t share_mode, uint32_t access_mask)
459 static int skel_linux_setlease(struct vfs_handle_struct *handle,
460 struct files_struct *fsp, int leasetype)
466 static bool skel_getlock(vfs_handle_struct *handle, files_struct *fsp,
467 off_t *poffset, off_t *pcount, int *ptype,
474 static int skel_symlink(vfs_handle_struct *handle, const char *oldpath,
481 static int skel_vfs_readlink(vfs_handle_struct *handle, const char *path,
482 char *buf, size_t bufsiz)
488 static int skel_link(vfs_handle_struct *handle, const char *oldpath,
495 static int skel_mknod(vfs_handle_struct *handle, const char *path, mode_t mode,
502 static char *skel_realpath(vfs_handle_struct *handle, const char *path)
508 static int skel_chflags(vfs_handle_struct *handle, const char *path,
515 static struct file_id skel_file_id_create(vfs_handle_struct *handle,
516 const SMB_STRUCT_STAT *sbuf)
524 struct skel_cc_state {
527 static struct tevent_req *skel_copy_chunk_send(struct vfs_handle_struct *handle,
529 struct tevent_context *ev,
530 struct files_struct *src_fsp,
532 struct files_struct *dest_fsp,
537 struct tevent_req *req;
538 struct skel_cc_state *cc_state;
540 req = tevent_req_create(mem_ctx, &cc_state, struct skel_cc_state);
545 tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
546 return tevent_req_post(req, ev);
549 static NTSTATUS skel_copy_chunk_recv(struct vfs_handle_struct *handle,
550 struct tevent_req *req,
555 if (tevent_req_is_nterror(req, &status)) {
556 tevent_req_received(req);
559 tevent_req_received(req);
564 static NTSTATUS skel_get_compression(struct vfs_handle_struct *handle,
566 struct files_struct *fsp,
567 struct smb_filename *smb_fname,
568 uint16_t *_compression_fmt)
570 return NT_STATUS_INVALID_DEVICE_REQUEST;
573 static NTSTATUS skel_set_compression(struct vfs_handle_struct *handle,
575 struct files_struct *fsp,
576 uint16_t compression_fmt)
578 return NT_STATUS_INVALID_DEVICE_REQUEST;
581 static NTSTATUS skel_streaminfo(struct vfs_handle_struct *handle,
582 struct files_struct *fsp,
583 const struct smb_filename *smb_fname,
585 unsigned int *num_streams,
586 struct stream_struct **streams)
588 return NT_STATUS_NOT_IMPLEMENTED;
591 static int skel_get_real_filename(struct vfs_handle_struct *handle,
594 TALLOC_CTX *mem_ctx, char **found_name)
600 static const char *skel_connectpath(struct vfs_handle_struct *handle,
601 const char *filename)
607 static NTSTATUS skel_brl_lock_windows(struct vfs_handle_struct *handle,
608 struct byte_range_lock *br_lck,
609 struct lock_struct *plock,
612 return NT_STATUS_NOT_IMPLEMENTED;
615 static bool skel_brl_unlock_windows(struct vfs_handle_struct *handle,
616 struct messaging_context *msg_ctx,
617 struct byte_range_lock *br_lck,
618 const struct lock_struct *plock)
624 static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
625 struct byte_range_lock *br_lck,
626 struct lock_struct *plock)
632 static bool skel_strict_lock(struct vfs_handle_struct *handle,
633 struct files_struct *fsp,
634 struct lock_struct *plock)
640 static void skel_strict_unlock(struct vfs_handle_struct *handle,
641 struct files_struct *fsp,
642 struct lock_struct *plock)
647 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
648 const char *mapped_name,
649 enum vfs_translate_direction direction,
650 TALLOC_CTX *mem_ctx, char **pmapped_name)
652 return NT_STATUS_NOT_IMPLEMENTED;
655 static NTSTATUS skel_fsctl(struct vfs_handle_struct *handle,
656 struct files_struct *fsp,
659 uint16_t req_flags, /* Needed for UNICODE ... */
660 const uint8_t *_in_data,
663 uint32_t max_out_len, uint32_t *out_len)
665 return NT_STATUS_NOT_IMPLEMENTED;
668 static NTSTATUS skel_readdir_attr(struct vfs_handle_struct *handle,
669 const struct smb_filename *fname,
671 struct readdir_attr_data **pattr_data)
673 return NT_STATUS_NOT_IMPLEMENTED;
676 static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
677 struct smb_filename *smb_fname,
680 return NT_STATUS_NOT_IMPLEMENTED;
683 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
684 struct files_struct *fsp,
687 return NT_STATUS_NOT_IMPLEMENTED;
690 static NTSTATUS skel_set_dos_attributes(struct vfs_handle_struct *handle,
691 const struct smb_filename *smb_fname,
694 return NT_STATUS_NOT_IMPLEMENTED;
697 static NTSTATUS skel_fset_dos_attributes(struct vfs_handle_struct *handle,
698 struct files_struct *fsp,
701 return NT_STATUS_NOT_IMPLEMENTED;
704 static NTSTATUS skel_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
705 uint32_t security_info,
707 struct security_descriptor **ppdesc)
709 return NT_STATUS_NOT_IMPLEMENTED;
712 static NTSTATUS skel_get_nt_acl(vfs_handle_struct *handle,
713 const struct smb_filename *smb_fname,
714 uint32_t security_info,
716 struct security_descriptor **ppdesc)
718 return NT_STATUS_NOT_IMPLEMENTED;
721 static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
722 uint32_t security_info_sent,
723 const struct security_descriptor *psd)
725 return NT_STATUS_NOT_IMPLEMENTED;
728 static int skel_chmod_acl(vfs_handle_struct *handle,
729 const struct smb_filename *smb_fname,
736 static int skel_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp,
743 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
744 const struct smb_filename *smb_fname,
749 return (SMB_ACL_T) NULL;
752 static SMB_ACL_T skel_sys_acl_get_fd(vfs_handle_struct *handle,
753 files_struct *fsp, TALLOC_CTX *mem_ctx)
756 return (SMB_ACL_T) NULL;
759 static int skel_sys_acl_blob_get_file(vfs_handle_struct *handle,
760 const struct smb_filename *smb_fname,
762 char **blob_description,
769 static int skel_sys_acl_blob_get_fd(vfs_handle_struct *handle,
770 files_struct *fsp, TALLOC_CTX *mem_ctx,
771 char **blob_description, DATA_BLOB *blob)
777 static int skel_sys_acl_set_file(vfs_handle_struct *handle,
778 const struct smb_filename *smb_fname,
779 SMB_ACL_TYPE_T acltype,
786 static int skel_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
793 static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle,
794 const struct smb_filename *smb_fname)
800 static ssize_t skel_getxattr(vfs_handle_struct *handle, const char *path,
801 const char *name, void *value, size_t size)
807 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
808 struct files_struct *fsp, const char *name,
809 void *value, size_t size)
815 static ssize_t skel_listxattr(vfs_handle_struct *handle,
816 const struct smb_filename *smb_fname,
824 static ssize_t skel_flistxattr(vfs_handle_struct *handle,
825 struct files_struct *fsp, char *list,
832 static int skel_removexattr(vfs_handle_struct *handle,
833 const struct smb_filename *smb_fname,
840 static int skel_fremovexattr(vfs_handle_struct *handle,
841 struct files_struct *fsp, const char *name)
845 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
848 static int skel_setxattr(vfs_handle_struct *handle,
849 const struct smb_filename *smb_fname,
859 static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
860 const char *name, const void *value, size_t size,
867 static bool skel_aio_force(struct vfs_handle_struct *handle,
868 struct files_struct *fsp)
874 /* VFS operations structure */
876 struct vfs_fn_pointers skel_opaque_fns = {
877 /* Disk operations */
879 .connect_fn = skel_connect,
880 .disconnect_fn = skel_disconnect,
881 .disk_free_fn = skel_disk_free,
882 .get_quota_fn = skel_get_quota,
883 .set_quota_fn = skel_set_quota,
884 .get_shadow_copy_data_fn = skel_get_shadow_copy_data,
885 .statvfs_fn = skel_statvfs,
886 .fs_capabilities_fn = skel_fs_capabilities,
887 .get_dfs_referrals_fn = skel_get_dfs_referrals,
888 .snap_check_path_fn = skel_snap_check_path,
889 .snap_create_fn = skel_snap_create,
890 .snap_delete_fn = skel_snap_delete,
892 /* Directory operations */
894 .opendir_fn = skel_opendir,
895 .fdopendir_fn = skel_fdopendir,
896 .readdir_fn = skel_readdir,
897 .seekdir_fn = skel_seekdir,
898 .telldir_fn = skel_telldir,
899 .rewind_dir_fn = skel_rewind_dir,
900 .mkdir_fn = skel_mkdir,
901 .rmdir_fn = skel_rmdir,
902 .closedir_fn = skel_closedir,
903 .init_search_op_fn = skel_init_search_op,
905 /* File operations */
907 .open_fn = skel_open,
908 .create_file_fn = skel_create_file,
909 .close_fn = skel_close_fn,
910 .read_fn = skel_vfs_read,
911 .pread_fn = skel_pread,
912 .pread_send_fn = skel_pread_send,
913 .pread_recv_fn = skel_pread_recv,
914 .write_fn = skel_write,
915 .pwrite_fn = skel_pwrite,
916 .pwrite_send_fn = skel_pwrite_send,
917 .pwrite_recv_fn = skel_pwrite_recv,
918 .lseek_fn = skel_lseek,
919 .sendfile_fn = skel_sendfile,
920 .recvfile_fn = skel_recvfile,
921 .rename_fn = skel_rename,
922 .fsync_fn = skel_fsync,
923 .fsync_send_fn = skel_fsync_send,
924 .fsync_recv_fn = skel_fsync_recv,
925 .stat_fn = skel_stat,
926 .fstat_fn = skel_fstat,
927 .lstat_fn = skel_lstat,
928 .get_alloc_size_fn = skel_get_alloc_size,
929 .unlink_fn = skel_unlink,
930 .chmod_fn = skel_chmod,
931 .fchmod_fn = skel_fchmod,
932 .chown_fn = skel_chown,
933 .fchown_fn = skel_fchown,
934 .lchown_fn = skel_lchown,
935 .chdir_fn = skel_chdir,
936 .getwd_fn = skel_getwd,
937 .ntimes_fn = skel_ntimes,
938 .ftruncate_fn = skel_ftruncate,
939 .fallocate_fn = skel_fallocate,
940 .lock_fn = skel_lock,
941 .kernel_flock_fn = skel_kernel_flock,
942 .linux_setlease_fn = skel_linux_setlease,
943 .getlock_fn = skel_getlock,
944 .symlink_fn = skel_symlink,
945 .readlink_fn = skel_vfs_readlink,
946 .link_fn = skel_link,
947 .mknod_fn = skel_mknod,
948 .realpath_fn = skel_realpath,
949 .chflags_fn = skel_chflags,
950 .file_id_create_fn = skel_file_id_create,
951 .copy_chunk_send_fn = skel_copy_chunk_send,
952 .copy_chunk_recv_fn = skel_copy_chunk_recv,
953 .get_compression_fn = skel_get_compression,
954 .set_compression_fn = skel_set_compression,
956 .streaminfo_fn = skel_streaminfo,
957 .get_real_filename_fn = skel_get_real_filename,
958 .connectpath_fn = skel_connectpath,
959 .brl_lock_windows_fn = skel_brl_lock_windows,
960 .brl_unlock_windows_fn = skel_brl_unlock_windows,
961 .brl_cancel_windows_fn = skel_brl_cancel_windows,
962 .strict_lock_fn = skel_strict_lock,
963 .strict_unlock_fn = skel_strict_unlock,
964 .translate_name_fn = skel_translate_name,
965 .fsctl_fn = skel_fsctl,
966 .readdir_attr_fn = skel_readdir_attr,
968 /* DOS attributes. */
969 .get_dos_attributes_fn = skel_get_dos_attributes,
970 .fget_dos_attributes_fn = skel_fget_dos_attributes,
971 .set_dos_attributes_fn = skel_set_dos_attributes,
972 .fset_dos_attributes_fn = skel_fset_dos_attributes,
974 /* NT ACL operations. */
976 .fget_nt_acl_fn = skel_fget_nt_acl,
977 .get_nt_acl_fn = skel_get_nt_acl,
978 .fset_nt_acl_fn = skel_fset_nt_acl,
980 /* POSIX ACL operations. */
982 .chmod_acl_fn = skel_chmod_acl,
983 .fchmod_acl_fn = skel_fchmod_acl,
985 .sys_acl_get_file_fn = skel_sys_acl_get_file,
986 .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
987 .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
988 .sys_acl_blob_get_fd_fn = skel_sys_acl_blob_get_fd,
989 .sys_acl_set_file_fn = skel_sys_acl_set_file,
990 .sys_acl_set_fd_fn = skel_sys_acl_set_fd,
991 .sys_acl_delete_def_file_fn = skel_sys_acl_delete_def_file,
994 .getxattr_fn = skel_getxattr,
995 .fgetxattr_fn = skel_fgetxattr,
996 .listxattr_fn = skel_listxattr,
997 .flistxattr_fn = skel_flistxattr,
998 .removexattr_fn = skel_removexattr,
999 .fremovexattr_fn = skel_fremovexattr,
1000 .setxattr_fn = skel_setxattr,
1001 .fsetxattr_fn = skel_fsetxattr,
1003 /* aio operations */
1004 .aio_force_fn = skel_aio_force,
1008 NTSTATUS vfs_skel_opaque_init(TALLOC_CTX *ctx)
1010 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_opaque",