204 lines
7.3 KiB
C
204 lines
7.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org>
|
|
* Copyright (C) 2018 Samsung Electronics Co., Ltd.
|
|
*/
|
|
|
|
#ifndef __KSMBD_VFS_H__
|
|
#define __KSMBD_VFS_H__
|
|
|
|
#include <linux/file.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/namei.h>
|
|
#include <uapi/linux/xattr.h>
|
|
#include <linux/posix_acl.h>
|
|
|
|
#include "smbacl.h"
|
|
#include "xattr.h"
|
|
|
|
/*
|
|
* Enumeration for stream type.
|
|
*/
|
|
enum {
|
|
DATA_STREAM = 1, /* type $DATA */
|
|
DIR_STREAM /* type $INDEX_ALLOCATION */
|
|
};
|
|
|
|
/* CreateOptions */
|
|
/* Flag is set, it must not be a file , valid for directory only */
|
|
#define FILE_DIRECTORY_FILE_LE cpu_to_le32(0x00000001)
|
|
#define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002)
|
|
#define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004)
|
|
|
|
/* Should not buffer on server*/
|
|
#define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
|
|
/* MBZ */
|
|
#define FILE_SYNCHRONOUS_IO_ALERT_LE cpu_to_le32(0x00000010)
|
|
/* MBZ */
|
|
#define FILE_SYNCHRONOUS_IO_NONALERT_LE cpu_to_le32(0x00000020)
|
|
|
|
/* Flaf must not be set for directory */
|
|
#define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040)
|
|
|
|
/* Should be zero */
|
|
#define CREATE_TREE_CONNECTION cpu_to_le32(0x00000080)
|
|
#define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100)
|
|
#define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200)
|
|
#define FILE_OPEN_REMOTE_INSTANCE cpu_to_le32(0x00000400)
|
|
|
|
/**
|
|
* Doc says this is obsolete "open for recovery" flag should be zero
|
|
* in any case.
|
|
*/
|
|
#define CREATE_OPEN_FOR_RECOVERY cpu_to_le32(0x00000400)
|
|
#define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800)
|
|
#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000)
|
|
#define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000)
|
|
#define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000)
|
|
#define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000)
|
|
|
|
/* Should be zero*/
|
|
#define FILE_OPEN_REQUIRING_OPLOCK cpu_to_le32(0x00010000)
|
|
#define FILE_DISALLOW_EXCLUSIVE cpu_to_le32(0x00020000)
|
|
#define FILE_RESERVE_OPFILTER_LE cpu_to_le32(0x00100000)
|
|
#define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000)
|
|
#define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000)
|
|
|
|
/* Should be zero */
|
|
#define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
|
|
#define CREATE_OPTIONS_MASK cpu_to_le32(0x00FFFFFF)
|
|
#define CREATE_OPTION_READONLY 0x10000000
|
|
/* system. NB not sent over wire */
|
|
#define CREATE_OPTION_SPECIAL 0x20000000
|
|
|
|
struct ksmbd_work;
|
|
struct ksmbd_file;
|
|
struct ksmbd_conn;
|
|
|
|
struct ksmbd_dir_info {
|
|
const char *name;
|
|
char *wptr;
|
|
char *rptr;
|
|
int name_len;
|
|
int out_buf_len;
|
|
int num_entry;
|
|
int data_count;
|
|
int last_entry_offset;
|
|
bool hide_dot_file;
|
|
int flags;
|
|
};
|
|
|
|
struct ksmbd_readdir_data {
|
|
struct dir_context ctx;
|
|
union {
|
|
void *private;
|
|
char *dirent;
|
|
};
|
|
|
|
unsigned int used;
|
|
unsigned int dirent_count;
|
|
unsigned int file_attr;
|
|
};
|
|
|
|
/* ksmbd kstat wrapper to get valid create time when reading dir entry */
|
|
struct ksmbd_kstat {
|
|
struct kstat *kstat;
|
|
unsigned long long create_time;
|
|
__le32 file_attributes;
|
|
};
|
|
|
|
int ksmbd_vfs_lock_parent(struct user_namespace *user_ns, struct dentry *parent,
|
|
struct dentry *child);
|
|
int ksmbd_vfs_may_delete(struct user_namespace *user_ns, struct dentry *dentry);
|
|
int ksmbd_vfs_query_maximal_access(struct user_namespace *user_ns,
|
|
struct dentry *dentry, __le32 *daccess);
|
|
int ksmbd_vfs_create(struct ksmbd_work *work, const char *name, umode_t mode);
|
|
int ksmbd_vfs_mkdir(struct ksmbd_work *work, const char *name, umode_t mode);
|
|
int ksmbd_vfs_read(struct ksmbd_work *work, struct ksmbd_file *fp,
|
|
size_t count, loff_t *pos);
|
|
int ksmbd_vfs_write(struct ksmbd_work *work, struct ksmbd_file *fp,
|
|
char *buf, size_t count, loff_t *pos, bool sync,
|
|
ssize_t *written);
|
|
int ksmbd_vfs_fsync(struct ksmbd_work *work, u64 fid, u64 p_id);
|
|
int ksmbd_vfs_remove_file(struct ksmbd_work *work, char *name);
|
|
int ksmbd_vfs_link(struct ksmbd_work *work,
|
|
const char *oldname, const char *newname);
|
|
int ksmbd_vfs_getattr(struct path *path, struct kstat *stat);
|
|
int ksmbd_vfs_fp_rename(struct ksmbd_work *work, struct ksmbd_file *fp,
|
|
char *newname);
|
|
int ksmbd_vfs_truncate(struct ksmbd_work *work,
|
|
struct ksmbd_file *fp, loff_t size);
|
|
struct srv_copychunk;
|
|
int ksmbd_vfs_copy_file_ranges(struct ksmbd_work *work,
|
|
struct ksmbd_file *src_fp,
|
|
struct ksmbd_file *dst_fp,
|
|
struct srv_copychunk *chunks,
|
|
unsigned int chunk_count,
|
|
unsigned int *chunk_count_written,
|
|
unsigned int *chunk_size_written,
|
|
loff_t *total_size_written);
|
|
ssize_t ksmbd_vfs_listxattr(struct dentry *dentry, char **list);
|
|
ssize_t ksmbd_vfs_getxattr(struct user_namespace *user_ns,
|
|
struct dentry *dentry,
|
|
char *xattr_name,
|
|
char **xattr_buf);
|
|
ssize_t ksmbd_vfs_casexattr_len(struct user_namespace *user_ns,
|
|
struct dentry *dentry, char *attr_name,
|
|
int attr_name_len);
|
|
int ksmbd_vfs_setxattr(struct user_namespace *user_ns,
|
|
struct dentry *dentry, const char *attr_name,
|
|
const void *attr_value, size_t attr_size, int flags);
|
|
int ksmbd_vfs_xattr_stream_name(char *stream_name, char **xattr_stream_name,
|
|
size_t *xattr_stream_name_size, int s_type);
|
|
int ksmbd_vfs_remove_xattr(struct user_namespace *user_ns,
|
|
struct dentry *dentry, char *attr_name);
|
|
int ksmbd_vfs_kern_path(struct ksmbd_work *work,
|
|
char *name, unsigned int flags, struct path *path,
|
|
bool caseless);
|
|
struct dentry *ksmbd_vfs_kern_path_create(struct ksmbd_work *work,
|
|
const char *name,
|
|
unsigned int flags,
|
|
struct path *path);
|
|
int ksmbd_vfs_empty_dir(struct ksmbd_file *fp);
|
|
void ksmbd_vfs_set_fadvise(struct file *filp, __le32 option);
|
|
int ksmbd_vfs_zero_data(struct ksmbd_work *work, struct ksmbd_file *fp,
|
|
loff_t off, loff_t len);
|
|
struct file_allocated_range_buffer;
|
|
int ksmbd_vfs_fqar_lseek(struct ksmbd_file *fp, loff_t start, loff_t length,
|
|
struct file_allocated_range_buffer *ranges,
|
|
int in_count, int *out_count);
|
|
int ksmbd_vfs_unlink(struct user_namespace *user_ns,
|
|
struct dentry *dir, struct dentry *dentry);
|
|
void *ksmbd_vfs_init_kstat(char **p, struct ksmbd_kstat *ksmbd_kstat);
|
|
int ksmbd_vfs_fill_dentry_attrs(struct ksmbd_work *work,
|
|
struct user_namespace *user_ns,
|
|
struct dentry *dentry,
|
|
struct ksmbd_kstat *ksmbd_kstat);
|
|
void ksmbd_vfs_posix_lock_wait(struct file_lock *flock);
|
|
int ksmbd_vfs_posix_lock_wait_timeout(struct file_lock *flock, long timeout);
|
|
void ksmbd_vfs_posix_lock_unblock(struct file_lock *flock);
|
|
int ksmbd_vfs_remove_acl_xattrs(struct user_namespace *user_ns,
|
|
struct dentry *dentry);
|
|
int ksmbd_vfs_remove_sd_xattrs(struct user_namespace *user_ns,
|
|
struct dentry *dentry);
|
|
int ksmbd_vfs_set_sd_xattr(struct ksmbd_conn *conn,
|
|
struct user_namespace *user_ns,
|
|
struct dentry *dentry,
|
|
struct smb_ntsd *pntsd, int len);
|
|
int ksmbd_vfs_get_sd_xattr(struct ksmbd_conn *conn,
|
|
struct user_namespace *user_ns,
|
|
struct dentry *dentry,
|
|
struct smb_ntsd **pntsd);
|
|
int ksmbd_vfs_set_dos_attrib_xattr(struct user_namespace *user_ns,
|
|
struct dentry *dentry,
|
|
struct xattr_dos_attrib *da);
|
|
int ksmbd_vfs_get_dos_attrib_xattr(struct user_namespace *user_ns,
|
|
struct dentry *dentry,
|
|
struct xattr_dos_attrib *da);
|
|
int ksmbd_vfs_set_init_posix_acl(struct user_namespace *user_ns,
|
|
struct inode *inode);
|
|
int ksmbd_vfs_inherit_posix_acl(struct user_namespace *user_ns,
|
|
struct inode *inode,
|
|
struct inode *parent_inode);
|
|
#endif /* __KSMBD_VFS_H__ */
|