/*
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) 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
* 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 */
+#define SMB_VFS_INTERFACE_VERSION 13
+
+
+/* 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;
-};
-
/*
- 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,
+
/* 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_RENAME,
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, struct connection_struct *conn, const char *service, const char *user);
+ void (*disconnect)(struct vfs_handle_struct *handle, struct connection_struct *conn);
+ SMB_BIG_UINT (*disk_free)(struct vfs_handle_struct *handle, struct connection_struct *conn, 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, struct connection_struct *conn, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
+ int (*set_quota)(struct vfs_handle_struct *handle, struct connection_struct *conn, 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);
+
+ /* Directory operations */
+
+ DIR *(*opendir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *fname, const char *mask, uint32 attributes);
+ SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
+ void (*seekdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp, long offset);
+ long (*telldir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
+ void (*rewind_dir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
+ int (*mkdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, mode_t mode);
+ int (*rmdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path);
+ int (*closedir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dir);
+
+ /* File operations */
+
+ int (*open)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *fname, 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, int fd, void *data, size_t n);
+ ssize_t (*pread)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, void *data, size_t n, SMB_OFF_T offset);
+ ssize_t (*write)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, const void *data, size_t n);
+ ssize_t (*pwrite)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, const void *data, size_t n, SMB_OFF_T offset);
+ SMB_OFF_T (*lseek)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, 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);
+ int (*rename)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *oldname, const char *newname);
+ int (*fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd);
+ int (*stat)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf);
+ int (*fstat)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, SMB_STRUCT_STAT *sbuf);
+ int (*lstat)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf);
+ int (*unlink)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path);
+ int (*chmod)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, mode_t mode);
+ int (*fchmod)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, mode_t mode);
+ int (*chown)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, uid_t uid, gid_t gid);
+ int (*fchown)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, uid_t uid, gid_t gid);
+ int (*chdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path);
+ char *(*getwd)(struct vfs_handle_struct *handle, struct connection_struct *conn, char *buf);
+ int (*utime)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, struct utimbuf *times);
+ int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, SMB_OFF_T offset);
+ BOOL (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
+ int (*symlink)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *oldpath, const char *newpath);
+ int (*readlink)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, char *buf, size_t bufsiz);
+ int (*link)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *oldpath, const char *newpath);
+ int (*mknod)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev);
+ char *(*realpath)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, char *resolved_path);
+
+ /* NT ACL operations. */
+
+ size_t (*fget_nt_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, uint32 security_info, struct security_descriptor_info **ppdesc);
+ size_t (*get_nt_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, uint32 security_info, struct security_descriptor_info **ppdesc);
+ BOOL (*fset_nt_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, uint32 security_info_sent, struct security_descriptor_info *psd);
+ BOOL (*set_nt_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd);
+
+ /* POSIX ACL operations. */
+
+ int (*chmod_acl)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *name, mode_t mode);
+ int (*fchmod_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, mode_t mode);
+
+ int (*sys_acl_get_entry)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
+ int (*sys_acl_get_tag_type)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
+ int (*sys_acl_get_permset)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
+ void * (*sys_acl_get_qualifier)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d);
+ SMB_ACL_T (*sys_acl_get_file)(struct vfs_handle_struct *handle, struct connection_struct *conn, 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 fd);
+ int (*sys_acl_clear_perms)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_PERMSET_T permset);
+ int (*sys_acl_add_perm)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
+ char * (*sys_acl_to_text)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_T theacl, ssize_t *plen);
+ SMB_ACL_T (*sys_acl_init)(struct vfs_handle_struct *handle, struct connection_struct *conn, int count);
+ int (*sys_acl_create_entry)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
+ int (*sys_acl_set_tag_type)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype);
+ int (*sys_acl_set_qualifier)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_ENTRY_T entry, void *qual);
+ int (*sys_acl_set_permset)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset);
+ int (*sys_acl_valid)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_T theacl );
+ int (*sys_acl_set_file)(struct vfs_handle_struct *handle, struct connection_struct *conn, 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, int fd, SMB_ACL_T theacl);
+ int (*sys_acl_delete_def_file)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path);
+ int (*sys_acl_get_perm)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
+ int (*sys_acl_free_text)(struct vfs_handle_struct *handle, struct connection_struct *conn, char *text);
+ int (*sys_acl_free_acl)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_ACL_T posix_acl);
+ int (*sys_acl_free_qualifier)(struct vfs_handle_struct *handle, struct connection_struct *conn, void *qualifier, SMB_ACL_TAG_T tagtype);
+
+ /* EA operations. */
+ ssize_t (*getxattr)(struct vfs_handle_struct *handle,struct connection_struct *conn,const char *path, const char *name, void *value, size_t size);
+ ssize_t (*lgetxattr)(struct vfs_handle_struct *handle,struct connection_struct *conn,const char *path, const char *name, void *value, size_t size);
+ ssize_t (*fgetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, void *value, size_t size);
+ ssize_t (*listxattr)(struct vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size);
+ ssize_t (*llistxattr)(struct vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size);
+ ssize_t (*flistxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp,int fd, char *list, size_t size);
+ int (*removexattr)(struct vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name);
+ int (*lremovexattr)(struct vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name);
+ int (*fremovexattr)(struct vfs_handle_struct *handle, struct files_struct *fsp,int filedes, const char *name);
+ int (*setxattr)(struct vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags);
+ int (*lsetxattr)(struct vfs_handle_struct *handle, struct connection_struct *conn,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,int filedes, 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, int fd, 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;
+
+ /* 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 *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 *chdir;
+ struct vfs_handle_struct *getwd;
+ struct vfs_handle_struct *utime;
+ struct vfs_handle_struct *ftruncate;
+ struct vfs_handle_struct *lock;
+ 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;
+
+ /* 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 {
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;
+
+
+#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)
+
+
+#include "vfs_macros.h"
#endif /* _VFS_H */
git.samba.org / nivanova / samba-autobuild / .git / blobdiff