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-rw-r--r--fs/ksmbd/vfs.h197
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+ * Doc says this is obsolete "open for recovery" flag should be zero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__ */