--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ VFS structures and parameters
+ Copyright (C) Jeremy Allison 1999-2005
+ Copyright (C) Tim Potter 1999
+ 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
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ This work was sponsored by Optifacio Software Services, Inc.
+*/
+
+#ifndef _VFS_H
+#define _VFS_H
+
+/* Avoid conflict with an AIX include file */
+
+#ifdef vfs_ops
+#undef vfs_ops
+#endif
+
+/*
+ * As we're now (thanks Andrew ! :-) using file_structs and connection
+ * structs in the vfs - then anyone writing a vfs must include includes.h...
+ */
+
+/*
+ * 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. */
+/* 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 the we had to change DIR to SMB_STRUCT_DIR. JRA */
+/* Changed to version 15 as the we added the statvfs call. JRA */
+#define SMB_VFS_INTERFACE_VERSION 15
+
+
+/* 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 };
+
+/*
+ All intercepted VFS operations must be declared as static functions inside module source
+ 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_statvfs_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,
+
+ /* File operations */
+
+ 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_FSYNC,
+ SMB_VFS_OP_STAT,
+ SMB_VFS_OP_FSTAT,
+ SMB_VFS_OP_LSTAT,
+ SMB_VFS_OP_UNLINK,
+ SMB_VFS_OP_CHMOD,
+ SMB_VFS_OP_FCHMOD,
+ SMB_VFS_OP_CHOWN,
+ SMB_VFS_OP_FCHOWN,
+ SMB_VFS_OP_CHDIR,
+ SMB_VFS_OP_GETWD,
+ SMB_VFS_OP_UTIME,
+ SMB_VFS_OP_FTRUNCATE,
+ SMB_VFS_OP_LOCK,
+ SMB_VFS_OP_SYMLINK,
+ SMB_VFS_OP_READLINK,
+ SMB_VFS_OP_LINK,
+ SMB_VFS_OP_MKNOD,
+ SMB_VFS_OP_REALPATH,
+
+ /* NT ACL operations. */
+
+ SMB_VFS_OP_FGET_NT_ACL,
+ SMB_VFS_OP_GET_NT_ACL,
+ SMB_VFS_OP_FSET_NT_ACL,
+ SMB_VFS_OP_SET_NT_ACL,
+
+ /* POSIX ACL operations. */
+
+ SMB_VFS_OP_CHMOD_ACL,
+ SMB_VFS_OP_FCHMOD_ACL,
+
+ SMB_VFS_OP_SYS_ACL_GET_ENTRY,
+ SMB_VFS_OP_SYS_ACL_GET_TAG_TYPE,
+ SMB_VFS_OP_SYS_ACL_GET_PERMSET,
+ SMB_VFS_OP_SYS_ACL_GET_QUALIFIER,
+ SMB_VFS_OP_SYS_ACL_GET_FILE,
+ SMB_VFS_OP_SYS_ACL_GET_FD,
+ SMB_VFS_OP_SYS_ACL_CLEAR_PERMS,
+ SMB_VFS_OP_SYS_ACL_ADD_PERM,
+ SMB_VFS_OP_SYS_ACL_TO_TEXT,
+ SMB_VFS_OP_SYS_ACL_INIT,
+ SMB_VFS_OP_SYS_ACL_CREATE_ENTRY,
+ SMB_VFS_OP_SYS_ACL_SET_TAG_TYPE,
+ SMB_VFS_OP_SYS_ACL_SET_QUALIFIER,
+ SMB_VFS_OP_SYS_ACL_SET_PERMSET,
+ SMB_VFS_OP_SYS_ACL_VALID,
+ SMB_VFS_OP_SYS_ACL_SET_FILE,
+ SMB_VFS_OP_SYS_ACL_SET_FD,
+ SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
+ SMB_VFS_OP_SYS_ACL_GET_PERM,
+ SMB_VFS_OP_SYS_ACL_FREE_TEXT,
+ 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);
+ int (*statvfs)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, struct vfs_statvfs_struct *statbuf);
+
+ /* Directory operations */
+
+ SMB_STRUCT_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, SMB_STRUCT_DIR *dirp);
+ void (*seekdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_STRUCT_DIR *dirp, long offset);
+ long (*telldir)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_STRUCT_DIR *dirp);
+ void (*rewind_dir)(struct vfs_handle_struct *handle, struct connection_struct *conn, SMB_STRUCT_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, SMB_STRUCT_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;
+ 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 *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)
+
+ These values are used by VFS subsystem when building vfs_ops for connection
+ from multiple VFS modules. Internally, Samba differentiates only opaque and
+ transparent layers at this process. Other types are used for providing better
+ diagnosing facilities.
+
+ Most modules will provide transparent layers. Opaque layer is for modules
+ which implement actual file system calls (like DB-based VFS). For example,
+ default POSIX VFS which is built in into Samba is an opaque VFS module.
+
+ Other layer types (audit, splitter, scanner) were designed to provide different
+ degree of transparency and for diagnosing VFS module behaviour.
+
+ Each module can implement several layers at the same time provided that only
+ one layer is used per each operation.
+
+*/
+
+typedef enum _vfs_op_layer {
+ SMB_VFS_LAYER_NOOP = -1, /* - For using in VFS module to indicate end of array */
+ /* of operations description */
+ 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 may not */
+ /* use Samba VFS */
+ SMB_VFS_LAYER_SPLITTER, /* - Splits operation, calls underlying layer _and_ own facility, */
+ /* then combines result */
+ SMB_VFS_LAYER_SCANNER /* - Checks data and possibly initiates additional */
+ /* file activity like logging to files _inside_ samba VFS */
+} vfs_op_layer;
+
+/*
+ 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 {
+ void* op;
+ vfs_op_type type;
+ vfs_op_layer layer;
+} vfs_op_tuple;
+
+
+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 */
+} vfs_statvfs_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 */
projects / samba / blobdiff