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c61c9c3a4c
Ensure we don't use any of the create_options for Samba private use. Add a new parameter to the VFS_CREATE call (private_flags) which is only used internally. Renumber NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and NTCREATEX_OPTIONS_PRIVATE_DENY_FCB to match the S4 code). Rev. the VFS interface to version 28. Jeremy.
797 lines
39 KiB
C
797 lines
39 KiB
C
/*
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Unix SMB/CIFS implementation.
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VFS structures and parameters
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Copyright (C) Jeremy Allison 1999-2005
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Copyright (C) Tim Potter 1999
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Copyright (C) Alexander Bokovoy 2002-2005
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Copyright (C) Stefan (metze) Metzmacher 2003
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Copyright (C) Volker Lendecke 2009
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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This work was sponsored by Optifacio Software Services, Inc.
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*/
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#ifndef _VFS_H
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#define _VFS_H
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/* Avoid conflict with an AIX include file */
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#ifdef vfs_ops
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#undef vfs_ops
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#endif
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/*
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* As we're now (thanks Andrew ! :-) using file_structs and connection
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* structs in the vfs - then anyone writing a vfs must include includes.h...
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*/
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/*
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* This next constant specifies the version number of the VFS interface
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* this smbd will load. Increment this if *ANY* changes are made to the
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* vfs_ops below. JRA.
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*
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* If you change anything here, please also update modules/vfs_full_audit.c.
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* VL.
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*/
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/* Changed to version 2 for CIFS UNIX extensions (mknod and link added). JRA. */
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/* Changed to version 3 for POSIX acl extensions. JRA. */
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/* Changed to version 4 for cascaded VFS interface. Alexander Bokovoy. */
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/* Changed to version 5 for sendfile addition. JRA. */
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/* Changed to version 6 for the new module system, fixed cascading and quota functions. --metze */
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/* Changed to version 7 to include the get_nt_acl info parameter. JRA. */
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/* Changed to version 8 includes EA calls. JRA. */
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/* Changed to version 9 to include the get_shadow_data call. --metze */
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/* Changed to version 10 to include pread/pwrite calls. */
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/* Changed to version 11 to include seekdir/telldir/rewinddir calls. JRA */
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/* Changed to version 12 to add mask and attributes to opendir(). JRA
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Also include aio calls. JRA. */
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/* Changed to version 13 as the internal structure of files_struct has changed. JRA */
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/* Changed to version 14 as we had to change DIR to SMB_STRUCT_DIR. JRA */
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/* Changed to version 15 as we added the statvfs call. JRA */
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/* Changed to version 16 as we added the getlock call. JRA */
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/* Changed to version 17 as we removed redundant connection_struct parameters. --jpeach */
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/* Changed to version 18 to add fsp parameter to the open call -- jpeach
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Also include kernel_flock call - jmcd */
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/* Changed to version 19, kernel change notify has been merged
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Also included linux setlease call - jmcd */
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/* Changed to version 20, use ntimes call instead of utime (greater
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* timestamp resolition. JRA. */
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/* Changed to version21 to add chflags operation -- jpeach */
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/* Changed to version22 to add lchown operation -- jra */
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/* Leave at 22 - not yet released. But change set_nt_acl to return an NTSTATUS. jra. */
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/* Leave at 22 - not yet released. Add file_id_create operation. --metze */
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/* Leave at 22 - not yet released. Change all BOOL parameters (int) to bool. jra. */
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/* Leave at 22 - not yet released. Added recvfile. */
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/* Leave at 22 - not yet released. Change get_nt_acl to return NTSTATUS - vl */
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/* Leave at 22 - not yet released. Change get_nt_acl to *not* take a
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* files_struct. - obnox.*/
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/* Leave at 22 - not yet released. Remove parameter fd from fget_nt_acl. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from gset_nt_acl. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from pread. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from pwrite. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from lseek. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fsync. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fstat. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fchmod. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fchown. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from ftruncate. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from lock. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from kernel_flock. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from linux_setlease. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from getlock. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from sys_acl_get_fd. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fchmod_acl. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from sys_acl_set_fd. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fgetxattr. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from flistxattr. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fremovexattr. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from fsetxattr. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from aio_cancel. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from read. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fd from write. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fromfd from sendfile. - obnox */
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/* Leave at 22 - not yet released. Remove parameter fromfd from recvfile. - obnox */
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/* Leave at 22 - not yet released. Additional change: add operations for offline files -- ab */
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/* Leave at 22 - not yet released. Add the streaminfo call. -- jpeach, vl */
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/* Leave at 22 - not yet released. Remove parameter fd from close_fn. - obnox */
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/* Changed to version 23 - remove set_nt_acl call. This can only be done via an
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open handle. JRA. */
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/* Changed to version 24 - make security descriptor const in fset_nt_acl. JRA. */
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/* Changed to version 25 - Jelmer's change from SMB_BIG_UINT to uint64_t. */
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/* Leave at 25 - not yet released. Add create_file call. -- tprouty. */
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/* Leave at 25 - not yet released. Add create time to ntimes. -- tstecher. */
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/* Leave at 25 - not yet released. Add get_alloc_size call. -- tprouty. */
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/* Leave at 25 - not yet released. Add SMB_STRUCT_STAT to readdir. - sdann */
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/* Leave at 25 - not yet released. Add init_search_op call. - sdann */
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/* Leave at 25 - not yet released. Add locking calls. -- zkirsch. */
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/* Leave at 25 - not yet released. Add strict locking calls. -- drichards. */
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/* Changed to version 26 - Plumb struct smb_filename to SMB_VFS_CREATE_FILE,
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SMB_VFS_OPEN, SMB_VFS_STAT, SMB_VFS_LSTAT,
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SMB_VFS_RENAME, SMB_VFS_UNLINK, SMB_VFS_NTIMES. */
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/* Changed to version 27 - not yet released. Added enum timestamp_set_resolution
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* return to fs_capabilities call. JRA. */
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/* Leave at 27 - not yet released. Add translate_name VFS call to convert
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UNIX names to Windows supported names -- asrinivasan. */
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/* Changed to version 28 - Add private_flags uint32_t to CREATE call. */
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#define SMB_VFS_INTERFACE_VERSION 28
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/* to bug old modules which are trying to compile with the old functions */
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#define vfs_init __ERROR_please_port_this_module_to_SMB_VFS_INTERFACE_VERSION_8_donot_use_vfs_init_anymore(void) { __ERROR_please_port_this_module_to_SMB_VFS_INTERFACE_VERSION_8_donot_use_vfs_init_anymore };
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#define lp_parm_string __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string { \
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__ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string };
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#define lp_vfs_options __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead { \
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__ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead };
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/*
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All intercepted VFS operations must be declared as static functions inside module source
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in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
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example VFS modules for more details.
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*/
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/* VFS operations structure */
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struct vfs_handle_struct;
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struct connection_struct;
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struct files_struct;
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struct security_descriptor;
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struct vfs_statvfs_struct;
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struct smb_request;
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struct ea_list;
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struct smb_file_time;
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struct blocking_lock_record;
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struct smb_filename;
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#define VFS_FIND(__fn__) while (handle->fns->__fn__==NULL) { \
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handle = handle->next; \
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}
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enum vfs_translate_direction {
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vfs_translate_to_unix = 0,
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vfs_translate_to_windows
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};
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/*
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Available VFS operations. These values must be in sync with vfs_ops struct
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(struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
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In particular, if new operations are added to vfs_ops, appropriate constants
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should be added to vfs_op_type so that order of them kept same as in vfs_ops.
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*/
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struct vfs_fn_pointers {
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/* Disk operations */
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int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
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void (*disconnect)(struct vfs_handle_struct *handle);
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uint64_t (*disk_free)(struct vfs_handle_struct *handle, const char *path, bool small_query, uint64_t *bsize,
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uint64_t *dfree, uint64_t *dsize);
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int (*get_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
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int (*set_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
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int (*get_shadow_copy_data)(struct vfs_handle_struct *handle, struct files_struct *fsp, SHADOW_COPY_DATA *shadow_copy_data, bool labels);
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int (*statvfs)(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf);
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uint32_t (*fs_capabilities)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
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/* Directory operations */
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SMB_STRUCT_DIR *(*opendir)(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attributes);
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SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle,
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SMB_STRUCT_DIR *dirp,
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SMB_STRUCT_STAT *sbuf);
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void (*seekdir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp, long offset);
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long (*telldir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
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void (*rewind_dir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
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int (*mkdir)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
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int (*rmdir)(struct vfs_handle_struct *handle, const char *path);
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int (*closedir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dir);
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void (*init_search_op)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
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/* File operations */
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int (*open)(struct vfs_handle_struct *handle,
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struct smb_filename *smb_fname, files_struct *fsp,
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int flags, mode_t mode);
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NTSTATUS (*create_file)(struct vfs_handle_struct *handle,
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struct smb_request *req,
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uint16_t root_dir_fid,
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struct smb_filename *smb_fname,
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uint32_t access_mask,
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uint32_t share_access,
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uint32_t create_disposition,
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uint32_t create_options,
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uint32_t file_attributes,
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uint32_t oplock_request,
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uint64_t allocation_size,
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uint32_t private_flags,
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struct security_descriptor *sd,
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struct ea_list *ea_list,
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files_struct **result,
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int *pinfo);
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int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
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ssize_t (*vfs_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n);
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ssize_t (*pread)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, SMB_OFF_T offset);
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ssize_t (*write)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n);
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ssize_t (*pwrite)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset);
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SMB_OFF_T (*lseek)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset, int whence);
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ssize_t (*sendfile)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, SMB_OFF_T offset, size_t count);
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ssize_t (*recvfile)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, SMB_OFF_T offset, size_t count);
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int (*rename)(struct vfs_handle_struct *handle,
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const struct smb_filename *smb_fname_src,
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const struct smb_filename *smb_fname_dst);
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int (*fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp);
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int (*stat)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
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int (*fstat)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
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int (*lstat)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
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uint64_t (*get_alloc_size)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
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int (*unlink)(struct vfs_handle_struct *handle,
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const struct smb_filename *smb_fname);
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int (*chmod)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
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int (*fchmod)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
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int (*chown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
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int (*fchown)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
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int (*lchown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
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int (*chdir)(struct vfs_handle_struct *handle, const char *path);
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char *(*getwd)(struct vfs_handle_struct *handle, char *buf);
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int (*ntimes)(struct vfs_handle_struct *handle,
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const struct smb_filename *smb_fname,
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struct smb_file_time *ft);
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int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset);
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bool (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
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int (*kernel_flock)(struct vfs_handle_struct *handle, struct files_struct *fsp,
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uint32 share_mode, uint32_t access_mask);
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int (*linux_setlease)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
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bool (*getlock)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
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int (*symlink)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
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int (*vfs_readlink)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
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int (*link)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
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int (*mknod)(struct vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev);
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char *(*realpath)(struct vfs_handle_struct *handle, const char *path, char *resolved_path);
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NTSTATUS (*notify_watch)(struct vfs_handle_struct *handle,
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struct sys_notify_context *ctx,
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struct notify_entry *e,
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void (*callback)(struct sys_notify_context *ctx,
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void *private_data,
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struct notify_event *ev),
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void *private_data, void *handle_p);
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int (*chflags)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
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struct file_id (*file_id_create)(struct vfs_handle_struct *handle,
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const SMB_STRUCT_STAT *sbuf);
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NTSTATUS (*streaminfo)(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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const char *fname,
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TALLOC_CTX *mem_ctx,
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unsigned int *num_streams,
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struct stream_struct **streams);
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int (*get_real_filename)(struct vfs_handle_struct *handle,
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const char *path,
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const char *name,
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TALLOC_CTX *mem_ctx,
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char **found_name);
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const char *(*connectpath)(struct vfs_handle_struct *handle,
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const char *filename);
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NTSTATUS (*brl_lock_windows)(struct vfs_handle_struct *handle,
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struct byte_range_lock *br_lck,
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struct lock_struct *plock,
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bool blocking_lock,
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struct blocking_lock_record *blr);
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bool (*brl_unlock_windows)(struct vfs_handle_struct *handle,
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struct messaging_context *msg_ctx,
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struct byte_range_lock *br_lck,
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const struct lock_struct *plock);
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bool (*brl_cancel_windows)(struct vfs_handle_struct *handle,
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struct byte_range_lock *br_lck,
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struct lock_struct *plock,
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struct blocking_lock_record *blr);
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bool (*strict_lock)(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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struct lock_struct *plock);
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void (*strict_unlock)(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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struct lock_struct *plock);
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NTSTATUS (*translate_name)(struct vfs_handle_struct *handle,
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const char *name,
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enum vfs_translate_direction direction,
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TALLOC_CTX *mem_ctx,
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char **mapped_name);
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/* NT ACL operations. */
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NTSTATUS (*fget_nt_acl)(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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uint32 security_info,
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struct security_descriptor **ppdesc);
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NTSTATUS (*get_nt_acl)(struct vfs_handle_struct *handle,
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const char *name,
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uint32 security_info,
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struct security_descriptor **ppdesc);
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NTSTATUS (*fset_nt_acl)(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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uint32 security_info_sent,
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const struct security_descriptor *psd);
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/* POSIX ACL operations. */
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int (*chmod_acl)(struct vfs_handle_struct *handle, const char *name, mode_t mode);
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int (*fchmod_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
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int (*sys_acl_get_entry)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
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int (*sys_acl_get_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
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int (*sys_acl_get_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
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void * (*sys_acl_get_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d);
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SMB_ACL_T (*sys_acl_get_file)(struct vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type);
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SMB_ACL_T (*sys_acl_get_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp);
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int (*sys_acl_clear_perms)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset);
|
|
int (*sys_acl_add_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
|
|
char * (*sys_acl_to_text)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, ssize_t *plen);
|
|
SMB_ACL_T (*sys_acl_init)(struct vfs_handle_struct *handle, int count);
|
|
int (*sys_acl_create_entry)(struct vfs_handle_struct *handle, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
|
|
int (*sys_acl_set_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype);
|
|
int (*sys_acl_set_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, void *qual);
|
|
int (*sys_acl_set_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset);
|
|
int (*sys_acl_valid)(struct vfs_handle_struct *handle, SMB_ACL_T theacl );
|
|
int (*sys_acl_set_file)(struct vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
|
|
int (*sys_acl_set_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
|
|
int (*sys_acl_delete_def_file)(struct vfs_handle_struct *handle, const char *path);
|
|
int (*sys_acl_get_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
|
|
int (*sys_acl_free_text)(struct vfs_handle_struct *handle, char *text);
|
|
int (*sys_acl_free_acl)(struct vfs_handle_struct *handle, SMB_ACL_T posix_acl);
|
|
int (*sys_acl_free_qualifier)(struct vfs_handle_struct *handle, void *qualifier, SMB_ACL_TAG_T tagtype);
|
|
|
|
/* EA operations. */
|
|
ssize_t (*getxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
|
|
ssize_t (*lgetxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
|
|
ssize_t (*fgetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
|
|
ssize_t (*listxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
|
|
ssize_t (*llistxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
|
|
ssize_t (*flistxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
|
|
int (*removexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
|
|
int (*lremovexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
|
|
int (*fremovexattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
|
|
int (*setxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
|
|
int (*lsetxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
|
|
int (*fsetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
|
|
|
|
/* aio operations */
|
|
int (*aio_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
|
|
int (*aio_write)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
|
|
ssize_t (*aio_return_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
|
|
int (*aio_cancel)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
|
|
int (*aio_error_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
|
|
int (*aio_fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_STRUCT_AIOCB *aiocb);
|
|
int (*aio_suspend)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_AIOCB * const aiocb[], int n, const struct timespec *timeout);
|
|
bool (*aio_force)(struct vfs_handle_struct *handle, struct files_struct *fsp);
|
|
|
|
/* offline operations */
|
|
bool (*is_offline)(struct vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf);
|
|
int (*set_offline)(struct vfs_handle_struct *handle, const char *path);
|
|
};
|
|
|
|
/*
|
|
VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
|
|
which describes all operations this module is willing to intercept.
|
|
VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
|
|
using this information.
|
|
*/
|
|
|
|
typedef struct vfs_handle_struct {
|
|
struct vfs_handle_struct *next, *prev;
|
|
const char *param;
|
|
struct connection_struct *conn;
|
|
const struct vfs_fn_pointers *fns;
|
|
void *data;
|
|
void (*free_data)(void **data);
|
|
} vfs_handle_struct;
|
|
|
|
|
|
typedef struct vfs_statvfs_struct {
|
|
/* For undefined recommended transfer size return -1 in that field */
|
|
uint32 OptimalTransferSize; /* bsize on some os, iosize on other os */
|
|
uint32 BlockSize;
|
|
|
|
/*
|
|
The next three fields are in terms of the block size.
|
|
(above). If block size is unknown, 4096 would be a
|
|
reasonable block size for a server to report.
|
|
Note that returning the blocks/blocksavail removes need
|
|
to make a second call (to QFSInfo level 0x103 to get this info.
|
|
UserBlockAvail is typically less than or equal to BlocksAvail,
|
|
if no distinction is made return the same value in each.
|
|
*/
|
|
|
|
uint64_t TotalBlocks;
|
|
uint64_t BlocksAvail; /* bfree */
|
|
uint64_t UserBlocksAvail; /* bavail */
|
|
|
|
/* For undefined Node fields or FSID return -1 */
|
|
uint64_t TotalFileNodes;
|
|
uint64_t FreeFileNodes;
|
|
uint64_t FsIdentifier; /* fsid */
|
|
/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
|
|
/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */
|
|
|
|
int FsCapabilities;
|
|
} vfs_statvfs_struct;
|
|
|
|
/* Add a new FSP extension of the given type. Returns a pointer to the
|
|
* extenstion data.
|
|
*/
|
|
#define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn) \
|
|
vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
|
|
|
|
/* Return a pointer to the existing FSP extension data. */
|
|
#define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
|
|
vfs_fetch_fsp_extension(handle, (fsp))
|
|
|
|
/* Return the talloc context associated with an FSP extension. */
|
|
#define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
|
|
vfs_memctx_fsp_extension(handle, (fsp))
|
|
|
|
/* Remove and destroy an FSP extension. */
|
|
#define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
|
|
vfs_remove_fsp_extension((handle), (fsp))
|
|
|
|
#define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
|
|
if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
|
|
DEBUG(0,("%s() failed to get vfs_handle->data!\n",FUNCTION_MACRO)); \
|
|
ret; \
|
|
} \
|
|
}
|
|
|
|
#define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
|
|
if (!(handle)) { \
|
|
DEBUG(0,("%s() failed to set handle->data!\n",FUNCTION_MACRO)); \
|
|
ret; \
|
|
} else { \
|
|
if ((handle)->free_data) { \
|
|
(handle)->free_data(&(handle)->data); \
|
|
} \
|
|
(handle)->data = (void *)datap; \
|
|
(handle)->free_data = free_fn; \
|
|
} \
|
|
}
|
|
|
|
#define SMB_VFS_HANDLE_FREE_DATA(handle) { \
|
|
if ((handle) && (handle)->free_data) { \
|
|
(handle)->free_data(&(handle)->data); \
|
|
} \
|
|
}
|
|
|
|
/* Check whether module-specific data handle was already allocated or not */
|
|
#define SMB_VFS_HANDLE_TEST_DATA(handle) ( !(handle) || !(handle)->data ? False : True )
|
|
|
|
#define SMB_VFS_OP(x) ((void *) x)
|
|
|
|
#define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
|
|
|
|
#include "vfs_macros.h"
|
|
|
|
int smb_vfs_call_connect(struct vfs_handle_struct *handle,
|
|
const char *service, const char *user);
|
|
void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
|
|
uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
|
|
const char *path, bool small_query,
|
|
uint64_t *bsize, uint64_t *dfree,
|
|
uint64_t *dsize);
|
|
int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
|
|
enum SMB_QUOTA_TYPE qtype, unid_t id,
|
|
SMB_DISK_QUOTA *qt);
|
|
int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
|
|
enum SMB_QUOTA_TYPE qtype, unid_t id,
|
|
SMB_DISK_QUOTA *qt);
|
|
int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
SHADOW_COPY_DATA *shadow_copy_data,
|
|
bool labels);
|
|
int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
|
|
struct vfs_statvfs_struct *statbuf);
|
|
uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
|
|
enum timestamp_set_resolution *p_ts_res);
|
|
SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
|
|
const char *fname, const char *mask,
|
|
uint32 attributes);
|
|
SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
|
|
SMB_STRUCT_DIR *dirp,
|
|
SMB_STRUCT_STAT *sbuf);
|
|
void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
|
|
SMB_STRUCT_DIR *dirp, long offset);
|
|
long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
|
|
SMB_STRUCT_DIR *dirp);
|
|
void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
|
|
SMB_STRUCT_DIR *dirp);
|
|
int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
|
|
mode_t mode);
|
|
int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path);
|
|
int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
|
|
SMB_STRUCT_DIR *dir);
|
|
void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
|
|
SMB_STRUCT_DIR *dirp);
|
|
int smb_vfs_call_open(struct vfs_handle_struct *handle,
|
|
struct smb_filename *smb_fname, struct files_struct *fsp,
|
|
int flags, mode_t mode);
|
|
NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
|
|
struct smb_request *req,
|
|
uint16_t root_dir_fid,
|
|
struct smb_filename *smb_fname,
|
|
uint32_t access_mask,
|
|
uint32_t share_access,
|
|
uint32_t create_disposition,
|
|
uint32_t create_options,
|
|
uint32_t file_attributes,
|
|
uint32_t oplock_request,
|
|
uint64_t allocation_size,
|
|
uint32_t private_flags,
|
|
struct security_descriptor *sd,
|
|
struct ea_list *ea_list,
|
|
files_struct **result,
|
|
int *pinfo);
|
|
int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp);
|
|
ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, void *data, size_t n);
|
|
ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, void *data, size_t n,
|
|
SMB_OFF_T offset);
|
|
ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, const void *data,
|
|
size_t n);
|
|
ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, const void *data,
|
|
size_t n, SMB_OFF_T offset);
|
|
SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, SMB_OFF_T offset,
|
|
int whence);
|
|
ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
|
|
files_struct *fromfsp, const DATA_BLOB *header,
|
|
SMB_OFF_T offset, size_t count);
|
|
ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
|
|
files_struct *tofsp, SMB_OFF_T offset,
|
|
size_t count);
|
|
int smb_vfs_call_rename(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname_src,
|
|
const struct smb_filename *smb_fname_dst);
|
|
int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp);
|
|
int smb_vfs_call_stat(struct vfs_handle_struct *handle,
|
|
struct smb_filename *smb_fname);
|
|
int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
|
|
int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
|
|
struct smb_filename *smb_filename);
|
|
uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
const SMB_STRUCT_STAT *sbuf);
|
|
int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname);
|
|
int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
|
|
mode_t mode);
|
|
int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, mode_t mode);
|
|
int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
|
|
uid_t uid, gid_t gid);
|
|
int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, uid_t uid, gid_t gid);
|
|
int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
|
|
uid_t uid, gid_t gid);
|
|
int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path);
|
|
char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf);
|
|
int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname,
|
|
struct smb_file_time *ft);
|
|
int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, SMB_OFF_T offset);
|
|
bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, int op, SMB_OFF_T offset,
|
|
SMB_OFF_T count, int type);
|
|
int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, uint32 share_mode,
|
|
uint32_t access_mask);
|
|
int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, int leasetype);
|
|
bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, SMB_OFF_T *poffset,
|
|
SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
|
|
int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
|
|
const char *newpath);
|
|
int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
|
|
const char *path, char *buf, size_t bufsiz);
|
|
int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
|
|
const char *newpath);
|
|
int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
|
|
mode_t mode, SMB_DEV_T dev);
|
|
char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
|
|
const char *path, char *resolved_path);
|
|
NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
|
|
struct sys_notify_context *ctx,
|
|
struct notify_entry *e,
|
|
void (*callback)(struct sys_notify_context *ctx,
|
|
void *private_data,
|
|
struct notify_event *ev),
|
|
void *private_data, void *handle_p);
|
|
int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
|
|
unsigned int flags);
|
|
struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
|
|
const SMB_STRUCT_STAT *sbuf);
|
|
NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
const char *fname,
|
|
TALLOC_CTX *mem_ctx,
|
|
unsigned int *num_streams,
|
|
struct stream_struct **streams);
|
|
int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
|
|
const char *path, const char *name,
|
|
TALLOC_CTX *mem_ctx, char **found_name);
|
|
const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
|
|
const char *filename);
|
|
NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
|
|
struct byte_range_lock *br_lck,
|
|
struct lock_struct *plock,
|
|
bool blocking_lock,
|
|
struct blocking_lock_record *blr);
|
|
bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
|
|
struct messaging_context *msg_ctx,
|
|
struct byte_range_lock *br_lck,
|
|
const struct lock_struct *plock);
|
|
bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
|
|
struct byte_range_lock *br_lck,
|
|
struct lock_struct *plock,
|
|
struct blocking_lock_record *blr);
|
|
bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
struct lock_struct *plock);
|
|
void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
struct lock_struct *plock);
|
|
NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
|
|
const char *name,
|
|
enum vfs_translate_direction direction,
|
|
TALLOC_CTX *mem_ctx,
|
|
char **mapped_name);
|
|
NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
uint32 security_info,
|
|
struct security_descriptor **ppdesc);
|
|
NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
|
|
const char *name,
|
|
uint32 security_info,
|
|
struct security_descriptor **ppdesc);
|
|
NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
uint32 security_info_sent,
|
|
const struct security_descriptor *psd);
|
|
int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
|
|
mode_t mode);
|
|
int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp, mode_t mode);
|
|
int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
|
|
SMB_ACL_T theacl, int entry_id,
|
|
SMB_ACL_ENTRY_T *entry_p);
|
|
int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
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SMB_ACL_ENTRY_T entry_d,
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SMB_ACL_TAG_T *tag_type_p);
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int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
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SMB_ACL_ENTRY_T entry_d,
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SMB_ACL_PERMSET_T *permset_p);
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void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
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SMB_ACL_ENTRY_T entry_d);
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SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
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const char *path_p,
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SMB_ACL_TYPE_T type);
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SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
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struct files_struct *fsp);
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int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
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SMB_ACL_PERMSET_T permset);
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int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
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SMB_ACL_PERMSET_T permset,
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SMB_ACL_PERM_T perm);
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char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
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SMB_ACL_T theacl, ssize_t *plen);
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SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
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int count);
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int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
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SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
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int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
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SMB_ACL_ENTRY_T entry,
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SMB_ACL_TAG_T tagtype);
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int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
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SMB_ACL_ENTRY_T entry, void *qual);
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int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
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SMB_ACL_ENTRY_T entry,
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SMB_ACL_PERMSET_T permset);
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int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
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SMB_ACL_T theacl);
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int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
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const char *name, SMB_ACL_TYPE_T acltype,
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SMB_ACL_T theacl);
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int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
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struct files_struct *fsp, SMB_ACL_T theacl);
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int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
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const char *path);
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int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
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SMB_ACL_PERMSET_T permset,
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SMB_ACL_PERM_T perm);
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int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
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char *text);
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int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
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SMB_ACL_T posix_acl);
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int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
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void *qualifier, SMB_ACL_TAG_T tagtype);
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ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
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const char *path, const char *name, void *value,
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size_t size);
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ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
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const char *path, const char *name, void *value,
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size_t size);
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ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
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struct files_struct *fsp, const char *name,
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void *value, size_t size);
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ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
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const char *path, char *list, size_t size);
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ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
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const char *path, char *list, size_t size);
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ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
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struct files_struct *fsp, char *list,
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size_t size);
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int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
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const char *path, const char *name);
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int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
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const char *path, const char *name);
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int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
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struct files_struct *fsp, const char *name);
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int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
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const char *name, const void *value, size_t size,
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int flags);
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int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
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const char *name, const void *value, size_t size,
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int flags);
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int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
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struct files_struct *fsp, const char *name,
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const void *value, size_t size, int flags);
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int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
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struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
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int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
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struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
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ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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SMB_STRUCT_AIOCB *aiocb);
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int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
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struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
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int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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SMB_STRUCT_AIOCB *aiocb);
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int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
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struct files_struct *fsp, int op,
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SMB_STRUCT_AIOCB *aiocb);
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int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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const SMB_STRUCT_AIOCB * const aiocb[], int n,
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const struct timespec *timeout);
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bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
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struct files_struct *fsp);
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bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
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const char *path, SMB_STRUCT_STAT *sbuf);
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int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
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const char *path);
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#endif /* _VFS_H */
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