diff options
Diffstat (limited to 'fs/ksmbd/vfs.h')
| -rw-r--r-- | fs/ksmbd/vfs.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/fs/ksmbd/vfs.h b/fs/ksmbd/vfs.h new file mode 100644 index 000000000000..cb0cba0d5d07 --- /dev/null +++ b/fs/ksmbd/vfs.h @@ -0,0 +1,197 @@ +/* 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cpu_to_le32(0x00000200) +#define FILE_OPEN_REMOTE_INSTANCE cpu_to_le32(0x00000400) + +/** + * Doc says this is obsolete "open for recovery" flag should be zero + * in any case.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 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, const char *name, + 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(char *name, unsigned int flags, struct path *path, + bool caseless); +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__ */ |