| /* 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| * Doc says this is obsolete "open for recovery" flag should be zero |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__ */ |