/*
Unix SMB/CIFS implementation.
VFS structures and parameters
+ Copyright (C) Jeremy Allison 1999-2005
Copyright (C) Tim Potter 1999
- Copyright (C) Alexander Bokovoy 2002
+ Copyright (C) Alexander Bokovoy 2002-2005
+ Copyright (C) Stefan (metze) Metzmacher 2003
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
This work was sponsored by Optifacio Software Services, Inc.
*/
* This next constant specifies the version number of the VFS interface
* this smbd will load. Increment this if *ANY* changes are made to the
* vfs_ops below. JRA.
+ *
+ * If you change anything here, please also update modules/vfs_full_audit.c.
+ * VL.
*/
/* Changed to version 2 for CIFS UNIX extensions (mknod and link added). JRA. */
/* Changed to version 3 for POSIX acl extensions. JRA. */
/* Changed to version 4 for cascaded VFS interface. Alexander Bokovoy. */
/* Changed to version 5 for sendfile addition. JRA. */
-#define SMB_VFS_INTERFACE_VERSION 5
-
-
-/* Version of supported cascaded interface backward copmatibility.
- (version 5 corresponds to SMB_VFS_INTERFACE_VERSION 5)
- It is used in vfs_init_custom() to detect VFS modules which conform to cascaded
- VFS interface but implement elder version than current version of Samba uses.
- This allows to use old modules with new VFS interface as far as combined VFS operation
- set is coherent (will be in most cases).
-*/
-#define SMB_VFS_INTERFACE_CASCADED 5
+/* Changed to version 6 for the new module system, fixed cascading and quota functions. --metze */
+/* Changed to version 7 to include the get_nt_acl info parameter. JRA. */
+/* Changed to version 8 includes EA calls. JRA. */
+/* Changed to version 9 to include the get_shadow_data call. --metze */
+/* Changed to version 10 to include pread/pwrite calls. */
+/* Changed to version 11 to include seekdir/telldir/rewinddir calls. JRA */
+/* Changed to version 12 to add mask and attributes to opendir(). JRA
+ Also include aio calls. JRA. */
+/* Changed to version 13 as the internal structure of files_struct has changed. JRA */
+/* Changed to version 14 as we had to change DIR to SMB_STRUCT_DIR. JRA */
+/* Changed to version 15 as we added the statvfs call. JRA */
+/* Changed to version 16 as we added the getlock call. JRA */
+/* Changed to version 17 as we removed redundant connection_struct parameters. --jpeach */
+/* Changed to version 18 to add fsp parameter to the open call -- jpeach
+ Also include kernel_flock call - jmcd */
+/* Changed to version 19, kernel change notify has been merged
+ Also included linux setlease call - jmcd */
+/* Changed to version 20, use ntimes call instead of utime (greater
+ * timestamp resolition. JRA. */
+/* Changed to version21 to add chflags operation -- jpeach */
+/* Changed to version22 to add lchown operation -- jra */
+/* Leave at 22 - not yet released. But change set_nt_acl to return an NTSTATUS. jra. */
+/* Leave at 22 - not yet released. Add file_id_create operation. --metze */
+/* Leave at 22 - not yet released. Change all BOOL parameters (int) to bool. jra. */
+/* Leave at 22 - not yet released. Added recvfile. */
+/* Leave at 22 - not yet released. Change get_nt_acl to return NTSTATUS - vl */
+/* Leave at 22 - not yet released. Change get_nt_acl to *not* take a
+ * files_struct. - obnox.*/
+/* Leave at 22 - not yet released. Remove parameter fd from fget_nt_acl. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from gset_nt_acl. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from pread. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from pwrite. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from lseek. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fsync. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fstat. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fchmod. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fchown. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from ftruncate. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from lock. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from kernel_flock. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from linux_setlease. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from getlock. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from sys_acl_get_fd. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fchmod_acl. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from sys_acl_set_fd. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fgetxattr. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from flistxattr. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fremovexattr. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from fsetxattr. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from aio_cancel. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from read. - obnox */
+/* Leave at 22 - not yet released. Remove parameter fd from write. - obnox */
+
+
+
+#define SMB_VFS_INTERFACE_VERSION 22
+
+
+/* to bug old modules which are trying to compile with the old functions */
+#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 };
+#define lp_parm_string __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string { \
+ __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string };
+#define lp_vfs_options __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead { \
+ __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead };
/*
- Each VFS module must provide following global functions:
- vfs_init -- initialization function
- vfs_done -- finalization function
-
- vfs_init must return proper initialized vfs_op_tuple[] array
- which describes all operations this module claims to intercept. This function
- is called whenever module is loaded into smbd process using sys_dlopen().
-
- vfs_init must store somewhere vfs_handle reference if module wants to store per-instance
- private information for further usage. vfs_handle->data should be used to
- store such information. Do not try to change other fields in this structure
- or results likely to be unpredictable.
-
- vfs_done must perform finalization of the module. In particular,
- this function must free vfs_ops structure returned to module from smb_vfs_get_opaque_ops()
- function if it is used (see below). This function is called whenever module
- is unloaded from smbd process using sys_dlclose().
-
- Prototypes:
- vfs_op_tuple *vfs_init(int *vfs_version, const struct vfs_ops *def_vfs_ops,
- struct smb_vfs_handle_struct *vfs_handle);
- void vfs_done(connection_struct *conn);
-
All intercepted VFS operations must be declared as static functions inside module source
- in order to keep smbd namespace unpolluted. See source of skel, audit, and recycle bin
+ in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
example VFS modules for more details.
-
*/
/* VFS operations structure */
+struct vfs_handle_struct;
struct connection_struct;
struct files_struct;
-struct security_descriptor_info;
-
-struct vfs_ops {
-
- /* Disk operations */
-
- int (*connect)(struct connection_struct *conn, const char *service, const char *user);
- void (*disconnect)(struct connection_struct *conn);
- SMB_BIG_UINT (*disk_free)(struct connection_struct *conn, const char *path, BOOL small_query, SMB_BIG_UINT *bsize,
- SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize);
-
- /* Directory operations */
-
- DIR *(*opendir)(struct connection_struct *conn, const char *fname);
- struct dirent *(*readdir)(struct connection_struct *conn, DIR *dirp);
- int (*mkdir)(struct connection_struct *conn, const char *path, mode_t mode);
- int (*rmdir)(struct connection_struct *conn, const char *path);
- int (*closedir)(struct connection_struct *conn, DIR *dir);
-
- /* File operations */
-
- int (*open)(struct connection_struct *conn, const char *fname, int flags, mode_t mode);
- int (*close)(struct files_struct *fsp, int fd);
- ssize_t (*read)(struct files_struct *fsp, int fd, void *data, size_t n);
- ssize_t (*write)(struct files_struct *fsp, int fd, const void *data, size_t n);
- SMB_OFF_T (*lseek)(struct files_struct *fsp, int filedes, SMB_OFF_T offset, int whence);
- ssize_t (*sendfile)(int tofd, files_struct *fsp, int fromfd, const DATA_BLOB *header, SMB_OFF_T offset, size_t count);
- int (*rename)(struct connection_struct *conn, const char *old, const char *new);
- int (*fsync)(struct files_struct *fsp, int fd);
- int (*stat)(struct connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf);
- int (*fstat)(struct files_struct *fsp, int fd, SMB_STRUCT_STAT *sbuf);
- int (*lstat)(struct connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf);
- int (*unlink)(struct connection_struct *conn, const char *path);
- int (*chmod)(struct connection_struct *conn, const char *path, mode_t mode);
- int (*fchmod)(struct files_struct *fsp, int fd, mode_t mode);
- int (*chown)(struct connection_struct *conn, const char *path, uid_t uid, gid_t gid);
- int (*fchown)(struct files_struct *fsp, int fd, uid_t uid, gid_t gid);
- int (*chdir)(struct connection_struct *conn, const char *path);
- char *(*getwd)(struct connection_struct *conn, char *buf);
- int (*utime)(struct connection_struct *conn, const char *path, struct utimbuf *times);
- int (*ftruncate)(struct files_struct *fsp, int fd, SMB_OFF_T offset);
- BOOL (*lock)(struct files_struct *fsp, int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
- int (*symlink)(struct connection_struct *conn, const char *oldpath, const char *newpath);
- int (*readlink)(struct connection_struct *conn, const char *path, char *buf, size_t bufsiz);
- int (*link)(struct connection_struct *conn, const char *oldpath, const char *newpath);
- int (*mknod)(struct connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev);
- char *(*realpath)(struct connection_struct *conn, const char *path, char *resolved_path);
-
- /* NT ACL operations. */
-
- size_t (*fget_nt_acl)(struct files_struct *fsp, int fd, struct security_descriptor_info **ppdesc);
- size_t (*get_nt_acl)(struct files_struct *fsp, const char *name, struct security_descriptor_info **ppdesc);
- BOOL (*fset_nt_acl)(struct files_struct *fsp, int fd, uint32 security_info_sent, struct security_descriptor_info *psd);
- BOOL (*set_nt_acl)(struct files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd);
-
- /* POSIX ACL operations. */
-
- int (*chmod_acl)(struct connection_struct *conn, const char *name, mode_t mode);
- int (*fchmod_acl)(struct files_struct *fsp, int fd, mode_t mode);
-
- int (*sys_acl_get_entry)(struct connection_struct *conn, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
- int (*sys_acl_get_tag_type)(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
- int (*sys_acl_get_permset)(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
- void * (*sys_acl_get_qualifier)(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d);
- SMB_ACL_T (*sys_acl_get_file)(struct connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type);
- SMB_ACL_T (*sys_acl_get_fd)(struct files_struct *fsp, int fd);
- int (*sys_acl_clear_perms)(struct connection_struct *conn, SMB_ACL_PERMSET_T permset);
- int (*sys_acl_add_perm)(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
- char * (*sys_acl_to_text)(struct connection_struct *conn, SMB_ACL_T theacl, ssize_t *plen);
- SMB_ACL_T (*sys_acl_init)(struct connection_struct *conn, int count);
- int (*sys_acl_create_entry)(struct connection_struct *conn, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
- int (*sys_acl_set_tag_type)(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype);
- int (*sys_acl_set_qualifier)(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, void *qual);
- int (*sys_acl_set_permset)(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset);
- int (*sys_acl_valid)(struct connection_struct *conn, SMB_ACL_T theacl );
- int (*sys_acl_set_file)(struct connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
- int (*sys_acl_set_fd)(struct files_struct *fsp, int fd, SMB_ACL_T theacl);
- int (*sys_acl_delete_def_file)(struct connection_struct *conn, const char *path);
- int (*sys_acl_get_perm)(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
- int (*sys_acl_free_text)(struct connection_struct *conn, char *text);
- int (*sys_acl_free_acl)(struct connection_struct *conn, SMB_ACL_T posix_acl);
- int (*sys_acl_free_qualifier)(struct connection_struct *conn, void *qualifier, SMB_ACL_TAG_T tagtype);
-};
-
-struct vfs_options {
- struct vfs_options *prev, *next;
- char *name;
- char *value;
-};
+struct security_descriptor;
+struct vfs_statvfs_struct;
/*
- Available VFS operations. These values must be in sync with vfs_ops struct.
+ Available VFS operations. These values must be in sync with vfs_ops struct
+ (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
In particular, if new operations are added to vfs_ops, appropriate constants
should be added to vfs_op_type so that order of them kept same as in vfs_ops.
*/
typedef enum _vfs_op_type {
-
SMB_VFS_OP_NOOP = -1,
/* Disk operations */
SMB_VFS_OP_CONNECT = 0,
SMB_VFS_OP_DISCONNECT,
SMB_VFS_OP_DISK_FREE,
+ SMB_VFS_OP_GET_QUOTA,
+ SMB_VFS_OP_SET_QUOTA,
+ SMB_VFS_OP_GET_SHADOW_COPY_DATA,
+ SMB_VFS_OP_STATVFS,
/* Directory operations */
SMB_VFS_OP_OPENDIR,
SMB_VFS_OP_READDIR,
+ SMB_VFS_OP_SEEKDIR,
+ SMB_VFS_OP_TELLDIR,
+ SMB_VFS_OP_REWINDDIR,
SMB_VFS_OP_MKDIR,
SMB_VFS_OP_RMDIR,
SMB_VFS_OP_CLOSEDIR,
SMB_VFS_OP_OPEN,
SMB_VFS_OP_CLOSE,
SMB_VFS_OP_READ,
+ SMB_VFS_OP_PREAD,
SMB_VFS_OP_WRITE,
+ SMB_VFS_OP_PWRITE,
SMB_VFS_OP_LSEEK,
SMB_VFS_OP_SENDFILE,
+ SMB_VFS_OP_RECVFILE,
SMB_VFS_OP_RENAME,
SMB_VFS_OP_FSYNC,
SMB_VFS_OP_STAT,
SMB_VFS_OP_FCHMOD,
SMB_VFS_OP_CHOWN,
SMB_VFS_OP_FCHOWN,
+ SMB_VFS_OP_LCHOWN,
SMB_VFS_OP_CHDIR,
SMB_VFS_OP_GETWD,
- SMB_VFS_OP_UTIME,
+ SMB_VFS_OP_NTIMES,
SMB_VFS_OP_FTRUNCATE,
SMB_VFS_OP_LOCK,
+ SMB_VFS_OP_KERNEL_FLOCK,
+ SMB_VFS_OP_LINUX_SETLEASE,
+ SMB_VFS_OP_GETLOCK,
SMB_VFS_OP_SYMLINK,
SMB_VFS_OP_READLINK,
SMB_VFS_OP_LINK,
SMB_VFS_OP_MKNOD,
SMB_VFS_OP_REALPATH,
+ SMB_VFS_OP_NOTIFY_WATCH,
+ SMB_VFS_OP_CHFLAGS,
+ SMB_VFS_OP_FILE_ID_CREATE,
/* NT ACL operations. */
SMB_VFS_OP_SYS_ACL_FREE_ACL,
SMB_VFS_OP_SYS_ACL_FREE_QUALIFIER,
+ /* EA operations. */
+ SMB_VFS_OP_GETXATTR,
+ SMB_VFS_OP_LGETXATTR,
+ SMB_VFS_OP_FGETXATTR,
+ SMB_VFS_OP_LISTXATTR,
+ SMB_VFS_OP_LLISTXATTR,
+ SMB_VFS_OP_FLISTXATTR,
+ SMB_VFS_OP_REMOVEXATTR,
+ SMB_VFS_OP_LREMOVEXATTR,
+ SMB_VFS_OP_FREMOVEXATTR,
+ SMB_VFS_OP_SETXATTR,
+ SMB_VFS_OP_LSETXATTR,
+ SMB_VFS_OP_FSETXATTR,
+
+ /* aio operations */
+ SMB_VFS_OP_AIO_READ,
+ SMB_VFS_OP_AIO_WRITE,
+ SMB_VFS_OP_AIO_RETURN,
+ SMB_VFS_OP_AIO_CANCEL,
+ SMB_VFS_OP_AIO_ERROR,
+ SMB_VFS_OP_AIO_FSYNC,
+ SMB_VFS_OP_AIO_SUSPEND,
+
/* This should always be last enum value */
SMB_VFS_OP_LAST
} vfs_op_type;
+/*
+ Please keep vfs_op_type, struct vfs_fn_pointers and struct vfs_handles_pointers in sync.
+*/
+struct vfs_ops {
+ struct vfs_fn_pointers {
+ /* Disk operations */
+
+ int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
+ void (*disconnect)(struct vfs_handle_struct *handle);
+ SMB_BIG_UINT (*disk_free)(struct vfs_handle_struct *handle, const char *path, bool small_query, SMB_BIG_UINT *bsize,
+ SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize);
+ int (*get_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
+ int (*set_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
+ int (*get_shadow_copy_data)(struct vfs_handle_struct *handle, struct files_struct *fsp, SHADOW_COPY_DATA *shadow_copy_data, bool labels);
+ int (*statvfs)(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf);
+
+ /* Directory operations */
+
+ SMB_STRUCT_DIR *(*opendir)(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attributes);
+ SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
+ void (*seekdir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp, long offset);
+ long (*telldir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
+ void (*rewind_dir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
+ int (*mkdir)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
+ int (*rmdir)(struct vfs_handle_struct *handle, const char *path);
+ int (*closedir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dir);
+
+ /* File operations */
+
+ int (*open)(struct vfs_handle_struct *handle, const char *fname, files_struct *fsp, int flags, mode_t mode);
+ int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd);
+ ssize_t (*read)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n);
+ ssize_t (*pread)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, SMB_OFF_T offset);
+ ssize_t (*write)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n);
+ ssize_t (*pwrite)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset);
+ SMB_OFF_T (*lseek)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset, int whence);
+ ssize_t (*sendfile)(struct vfs_handle_struct *handle, int tofd, files_struct *fsp, int fromfd, const DATA_BLOB *header, SMB_OFF_T offset, size_t count);
+ ssize_t (*recvfile)(struct vfs_handle_struct *handle, int fromfd, files_struct *fsp, int tofd, SMB_OFF_T offset, size_t count);
+ int (*rename)(struct vfs_handle_struct *handle, const char *oldname, const char *newname);
+ int (*fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp);
+ int (*stat)(struct vfs_handle_struct *handle, const char *fname, SMB_STRUCT_STAT *sbuf);
+ int (*fstat)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
+ int (*lstat)(struct vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf);
+ int (*unlink)(struct vfs_handle_struct *handle, const char *path);
+ int (*chmod)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
+ int (*fchmod)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
+ int (*chown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
+ int (*fchown)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
+ int (*lchown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
+ int (*chdir)(struct vfs_handle_struct *handle, const char *path);
+ char *(*getwd)(struct vfs_handle_struct *handle, char *buf);
+ int (*ntimes)(struct vfs_handle_struct *handle, const char *path, const struct timespec ts[2]);
+ int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset);
+ bool (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
+ int (*kernel_flock)(struct vfs_handle_struct *handle, struct files_struct *fsp, uint32 share_mode);
+ int (*linux_setlease)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
+ bool (*getlock)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
+ int (*symlink)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
+ int (*readlink)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
+ int (*link)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
+ int (*mknod)(struct vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev);
+ char *(*realpath)(struct vfs_handle_struct *handle, const char *path, char *resolved_path);
+ NTSTATUS (*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 (*chflags)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
+ struct file_id (*file_id_create)(struct vfs_handle_struct *handle, SMB_DEV_T dev, SMB_INO_T inode);
+
+ /* NT ACL operations. */
+
+ NTSTATUS (*fget_nt_acl)(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ uint32 security_info,
+ struct security_descriptor **ppdesc);
+ NTSTATUS (*get_nt_acl)(struct vfs_handle_struct *handle,
+ const char *name,
+ uint32 security_info,
+ struct security_descriptor **ppdesc);
+ NTSTATUS (*fset_nt_acl)(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ uint32 security_info_sent,
+ struct security_descriptor *psd);
+ NTSTATUS (*set_nt_acl)(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ const char *name,
+ uint32 security_info_sent,
+ struct security_descriptor *psd);
+
+ /* POSIX ACL operations. */
+
+ int (*chmod_acl)(struct vfs_handle_struct *handle, const char *name, mode_t mode);
+ int (*fchmod_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
+
+ int (*sys_acl_get_entry)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
+ int (*sys_acl_get_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
+ int (*sys_acl_get_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
+ void * (*sys_acl_get_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d);
+ SMB_ACL_T (*sys_acl_get_file)(struct vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type);
+ SMB_ACL_T (*sys_acl_get_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp);
+ 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);
+
+ } ops;
+
+ struct vfs_handles_pointers {
+ /* Disk operations */
+
+ struct vfs_handle_struct *connect_hnd;
+ struct vfs_handle_struct *disconnect;
+ struct vfs_handle_struct *disk_free;
+ struct vfs_handle_struct *get_quota;
+ struct vfs_handle_struct *set_quota;
+ struct vfs_handle_struct *get_shadow_copy_data;
+ struct vfs_handle_struct *statvfs;
+
+ /* Directory operations */
+
+ struct vfs_handle_struct *opendir;
+ struct vfs_handle_struct *readdir;
+ struct vfs_handle_struct *seekdir;
+ struct vfs_handle_struct *telldir;
+ struct vfs_handle_struct *rewind_dir;
+ struct vfs_handle_struct *mkdir;
+ struct vfs_handle_struct *rmdir;
+ struct vfs_handle_struct *closedir;
+
+ /* File operations */
+
+ struct vfs_handle_struct *open;
+ struct vfs_handle_struct *close_hnd;
+ struct vfs_handle_struct *read;
+ struct vfs_handle_struct *pread;
+ struct vfs_handle_struct *write;
+ struct vfs_handle_struct *pwrite;
+ struct vfs_handle_struct *lseek;
+ struct vfs_handle_struct *sendfile;
+ struct vfs_handle_struct *recvfile;
+ struct vfs_handle_struct *rename;
+ struct vfs_handle_struct *fsync;
+ struct vfs_handle_struct *stat;
+ struct vfs_handle_struct *fstat;
+ struct vfs_handle_struct *lstat;
+ struct vfs_handle_struct *unlink;
+ struct vfs_handle_struct *chmod;
+ struct vfs_handle_struct *fchmod;
+ struct vfs_handle_struct *chown;
+ struct vfs_handle_struct *fchown;
+ struct vfs_handle_struct *lchown;
+ struct vfs_handle_struct *chdir;
+ struct vfs_handle_struct *getwd;
+ struct vfs_handle_struct *ntimes;
+ struct vfs_handle_struct *ftruncate;
+ struct vfs_handle_struct *lock;
+ struct vfs_handle_struct *kernel_flock;
+ struct vfs_handle_struct *linux_setlease;
+ struct vfs_handle_struct *getlock;
+ struct vfs_handle_struct *symlink;
+ struct vfs_handle_struct *readlink;
+ struct vfs_handle_struct *link;
+ struct vfs_handle_struct *mknod;
+ struct vfs_handle_struct *realpath;
+ struct vfs_handle_struct *notify_watch;
+ struct vfs_handle_struct *chflags;
+ struct vfs_handle_struct *file_id_create;
+
+ /* NT ACL operations. */
+
+ struct vfs_handle_struct *fget_nt_acl;
+ struct vfs_handle_struct *get_nt_acl;
+ struct vfs_handle_struct *fset_nt_acl;
+ struct vfs_handle_struct *set_nt_acl;
+
+ /* POSIX ACL operations. */
+
+ struct vfs_handle_struct *chmod_acl;
+ struct vfs_handle_struct *fchmod_acl;
+
+ struct vfs_handle_struct *sys_acl_get_entry;
+ struct vfs_handle_struct *sys_acl_get_tag_type;
+ struct vfs_handle_struct *sys_acl_get_permset;
+ struct vfs_handle_struct *sys_acl_get_qualifier;
+ struct vfs_handle_struct *sys_acl_get_file;
+ struct vfs_handle_struct *sys_acl_get_fd;
+ struct vfs_handle_struct *sys_acl_clear_perms;
+ struct vfs_handle_struct *sys_acl_add_perm;
+ struct vfs_handle_struct *sys_acl_to_text;
+ struct vfs_handle_struct *sys_acl_init;
+ struct vfs_handle_struct *sys_acl_create_entry;
+ struct vfs_handle_struct *sys_acl_set_tag_type;
+ struct vfs_handle_struct *sys_acl_set_qualifier;
+ struct vfs_handle_struct *sys_acl_set_permset;
+ struct vfs_handle_struct *sys_acl_valid;
+ struct vfs_handle_struct *sys_acl_set_file;
+ struct vfs_handle_struct *sys_acl_set_fd;
+ struct vfs_handle_struct *sys_acl_delete_def_file;
+ struct vfs_handle_struct *sys_acl_get_perm;
+ struct vfs_handle_struct *sys_acl_free_text;
+ struct vfs_handle_struct *sys_acl_free_acl;
+ struct vfs_handle_struct *sys_acl_free_qualifier;
+
+ /* EA operations. */
+ struct vfs_handle_struct *getxattr;
+ struct vfs_handle_struct *lgetxattr;
+ struct vfs_handle_struct *fgetxattr;
+ struct vfs_handle_struct *listxattr;
+ struct vfs_handle_struct *llistxattr;
+ struct vfs_handle_struct *flistxattr;
+ struct vfs_handle_struct *removexattr;
+ struct vfs_handle_struct *lremovexattr;
+ struct vfs_handle_struct *fremovexattr;
+ struct vfs_handle_struct *setxattr;
+ struct vfs_handle_struct *lsetxattr;
+ struct vfs_handle_struct *fsetxattr;
+
+ /* aio operations */
+ struct vfs_handle_struct *aio_read;
+ struct vfs_handle_struct *aio_write;
+ struct vfs_handle_struct *aio_return;
+ struct vfs_handle_struct *aio_cancel;
+ struct vfs_handle_struct *aio_error;
+ struct vfs_handle_struct *aio_fsync;
+ struct vfs_handle_struct *aio_suspend;
+ } handles;
+};
+
/*
Possible VFS operation layers (per-operation)
SMB_VFS_LAYER_OPAQUE = 0, /* - Final level, does not call anything beyond itself */
SMB_VFS_LAYER_TRANSPARENT, /* - Normal operation, calls underlying layer after */
/* possibly changing passed data */
- SMB_VFS_LAYER_LOGGER, /* - Logs data, calls underlying layer, logging does not */
+ SMB_VFS_LAYER_LOGGER, /* - Logs data, calls underlying layer, logging may not */
/* use Samba VFS */
SMB_VFS_LAYER_SPLITTER, /* - Splits operation, calls underlying layer _and_ own facility, */
/* then combines result */
} vfs_op_layer;
/*
- VFS operation description. Each VFS module initialization function returns to VFS subsystem
- an array of vfs_op_tuple which describes all operations this module is willing to intercept.
- VFS subsystem initializes then vfs_ops using this information and passes it
- to next VFS module as underlying vfs_ops and to connection after all VFS modules are initialized.
+ 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_op_tuple {
+typedef struct vfs_op_tuple {
void* op;
vfs_op_type type;
vfs_op_layer layer;
} vfs_op_tuple;
-/*
- Return vfs_ops filled with current opaque VFS operations. This function is designed to
- be called from VFS module initialization function for those modules which needs 'direct' VFS
- access (loggers or initiators of file operations other than connection asks for).
-
- Returned vfs_ops must be cleaned up in VFS module's finalizer function (vfs_done_<module_name>)
- using safe_free().
-
- Prototype:
- struct vfs_ops *smb_vfs_get_opaque_ops();
-
- This prototype will be available via include/proto.h
-*/
+
+typedef struct vfs_handle_struct {
+ struct vfs_handle_struct *next, *prev;
+ const char *param;
+ struct vfs_ops vfs_next;
+ struct connection_struct *conn;
+ 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.
+ */
+
+ SMB_BIG_UINT TotalBlocks;
+ SMB_BIG_UINT BlocksAvail; /* bfree */
+ SMB_BIG_UINT UserBlocksAvail; /* bavail */
+
+ /* For undefined Node fields or FSID return -1 */
+ SMB_BIG_UINT TotalFileNodes;
+ SMB_BIG_UINT FreeFileNodes;
+ SMB_BIG_UINT 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) \
+ vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type))
+
+/* 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"
#endif /* _VFS_H */
git.samba.org / samba.git / blobdiff