138c8a9a5SSteve French /* SPDX-License-Identifier: GPL-2.0-or-later */ 238c8a9a5SSteve French /* 338c8a9a5SSteve French * Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org> 438c8a9a5SSteve French * Copyright (C) 2018 Samsung Electronics Co., Ltd. 538c8a9a5SSteve French */ 638c8a9a5SSteve French 738c8a9a5SSteve French #ifndef __KSMBD_VFS_H__ 838c8a9a5SSteve French #define __KSMBD_VFS_H__ 938c8a9a5SSteve French 1038c8a9a5SSteve French #include <linux/file.h> 1138c8a9a5SSteve French #include <linux/fs.h> 1238c8a9a5SSteve French #include <linux/namei.h> 1338c8a9a5SSteve French #include <uapi/linux/xattr.h> 1438c8a9a5SSteve French #include <linux/posix_acl.h> 1538c8a9a5SSteve French #include <linux/unicode.h> 1638c8a9a5SSteve French 1738c8a9a5SSteve French #include "smbacl.h" 1838c8a9a5SSteve French #include "xattr.h" 1938c8a9a5SSteve French 2038c8a9a5SSteve French /* 2138c8a9a5SSteve French * Enumeration for stream type. 2238c8a9a5SSteve French */ 2338c8a9a5SSteve French enum { 2438c8a9a5SSteve French DATA_STREAM = 1, /* type $DATA */ 2538c8a9a5SSteve French DIR_STREAM /* type $INDEX_ALLOCATION */ 2638c8a9a5SSteve French }; 2738c8a9a5SSteve French 2838c8a9a5SSteve French /* CreateOptions */ 2938c8a9a5SSteve French #define CREATE_TREE_CONNECTION cpu_to_le32(0x00000080) 3038c8a9a5SSteve French #define FILE_RESERVE_OPFILTER_LE cpu_to_le32(0x00100000) 3138c8a9a5SSteve French 3238c8a9a5SSteve French #define CREATE_OPTION_READONLY 0x10000000 3338c8a9a5SSteve French /* system. NB not sent over wire */ 3438c8a9a5SSteve French #define CREATE_OPTION_SPECIAL 0x20000000 3538c8a9a5SSteve French 3638c8a9a5SSteve French struct ksmbd_work; 3738c8a9a5SSteve French struct ksmbd_file; 3838c8a9a5SSteve French struct ksmbd_conn; 3938c8a9a5SSteve French 4038c8a9a5SSteve French struct ksmbd_dir_info { 4138c8a9a5SSteve French const char *name; 4238c8a9a5SSteve French char *wptr; 4338c8a9a5SSteve French char *rptr; 4438c8a9a5SSteve French int name_len; 4538c8a9a5SSteve French int out_buf_len; 46*2f75da82SHobin Woo int num_scan; 4738c8a9a5SSteve French int num_entry; 4838c8a9a5SSteve French int data_count; 4938c8a9a5SSteve French int last_entry_offset; 5038c8a9a5SSteve French bool hide_dot_file; 5138c8a9a5SSteve French int flags; 5238c8a9a5SSteve French int last_entry_off_align; 5338c8a9a5SSteve French }; 5438c8a9a5SSteve French 5538c8a9a5SSteve French struct ksmbd_readdir_data { 5638c8a9a5SSteve French struct dir_context ctx; 5738c8a9a5SSteve French union { 5838c8a9a5SSteve French void *private; 5938c8a9a5SSteve French char *dirent; 6038c8a9a5SSteve French }; 6138c8a9a5SSteve French 6238c8a9a5SSteve French unsigned int used; 6338c8a9a5SSteve French unsigned int dirent_count; 6438c8a9a5SSteve French unsigned int file_attr; 6538c8a9a5SSteve French struct unicode_map *um; 6638c8a9a5SSteve French }; 6738c8a9a5SSteve French 6838c8a9a5SSteve French /* ksmbd kstat wrapper to get valid create time when reading dir entry */ 6938c8a9a5SSteve French struct ksmbd_kstat { 7038c8a9a5SSteve French struct kstat *kstat; 7138c8a9a5SSteve French unsigned long long create_time; 7238c8a9a5SSteve French __le32 file_attributes; 7338c8a9a5SSteve French }; 7438c8a9a5SSteve French 7538c8a9a5SSteve French int ksmbd_vfs_lock_parent(struct dentry *parent, struct dentry *child); 76ccb5889aSLu Hongfei void ksmbd_vfs_query_maximal_access(struct mnt_idmap *idmap, 7738c8a9a5SSteve French struct dentry *dentry, __le32 *daccess); 7838c8a9a5SSteve French int ksmbd_vfs_create(struct ksmbd_work *work, const char *name, umode_t mode); 7938c8a9a5SSteve French int ksmbd_vfs_mkdir(struct ksmbd_work *work, const char *name, umode_t mode); 80e2b76ab8SNamjae Jeon int ksmbd_vfs_read(struct ksmbd_work *work, struct ksmbd_file *fp, size_t count, 81e2b76ab8SNamjae Jeon loff_t *pos, char *rbuf); 8238c8a9a5SSteve French int ksmbd_vfs_write(struct ksmbd_work *work, struct ksmbd_file *fp, 8338c8a9a5SSteve French char *buf, size_t count, loff_t *pos, bool sync, 8438c8a9a5SSteve French ssize_t *written); 8538c8a9a5SSteve French int ksmbd_vfs_fsync(struct ksmbd_work *work, u64 fid, u64 p_id); 8638c8a9a5SSteve French int ksmbd_vfs_remove_file(struct ksmbd_work *work, const struct path *path); 8738c8a9a5SSteve French int ksmbd_vfs_link(struct ksmbd_work *work, 8838c8a9a5SSteve French const char *oldname, const char *newname); 8938c8a9a5SSteve French int ksmbd_vfs_getattr(const struct path *path, struct kstat *stat); 9038c8a9a5SSteve French int ksmbd_vfs_rename(struct ksmbd_work *work, const struct path *old_path, 9138c8a9a5SSteve French char *newname, int flags); 9238c8a9a5SSteve French int ksmbd_vfs_truncate(struct ksmbd_work *work, 9338c8a9a5SSteve French struct ksmbd_file *fp, loff_t size); 9438c8a9a5SSteve French struct srv_copychunk; 9538c8a9a5SSteve French int ksmbd_vfs_copy_file_ranges(struct ksmbd_work *work, 9638c8a9a5SSteve French struct ksmbd_file *src_fp, 9738c8a9a5SSteve French struct ksmbd_file *dst_fp, 9838c8a9a5SSteve French struct srv_copychunk *chunks, 9938c8a9a5SSteve French unsigned int chunk_count, 10038c8a9a5SSteve French unsigned int *chunk_count_written, 10138c8a9a5SSteve French unsigned int *chunk_size_written, 10238c8a9a5SSteve French loff_t *total_size_written); 10338c8a9a5SSteve French ssize_t ksmbd_vfs_listxattr(struct dentry *dentry, char **list); 10438c8a9a5SSteve French ssize_t ksmbd_vfs_getxattr(struct mnt_idmap *idmap, 10538c8a9a5SSteve French struct dentry *dentry, 10638c8a9a5SSteve French char *xattr_name, 10738c8a9a5SSteve French char **xattr_buf); 10838c8a9a5SSteve French ssize_t ksmbd_vfs_casexattr_len(struct mnt_idmap *idmap, 10938c8a9a5SSteve French struct dentry *dentry, char *attr_name, 11038c8a9a5SSteve French int attr_name_len); 11138c8a9a5SSteve French int ksmbd_vfs_setxattr(struct mnt_idmap *idmap, 11240b268d3SNamjae Jeon const struct path *path, const char *attr_name, 1139ab2842cSNamjae Jeon void *attr_value, size_t attr_size, int flags, 1149ab2842cSNamjae Jeon bool get_write); 11538c8a9a5SSteve French int ksmbd_vfs_xattr_stream_name(char *stream_name, char **xattr_stream_name, 11638c8a9a5SSteve French size_t *xattr_stream_name_size, int s_type); 11738c8a9a5SSteve French int ksmbd_vfs_remove_xattr(struct mnt_idmap *idmap, 118db20d4e4SNamjae Jeon const struct path *path, char *attr_name, 119db20d4e4SNamjae Jeon bool get_write); 12038c8a9a5SSteve French int ksmbd_vfs_kern_path_locked(struct ksmbd_work *work, char *name, 1212b57a432SNamjae Jeon unsigned int flags, struct path *parent_path, 1222b57a432SNamjae Jeon struct path *path, bool caseless); 1239ab2842cSNamjae Jeon void ksmbd_vfs_kern_path_unlock(struct path *parent_path, struct path *path); 12438c8a9a5SSteve French struct dentry *ksmbd_vfs_kern_path_create(struct ksmbd_work *work, 12538c8a9a5SSteve French const char *name, 12638c8a9a5SSteve French unsigned int flags, 12738c8a9a5SSteve French struct path *path); 12838c8a9a5SSteve French int ksmbd_vfs_empty_dir(struct ksmbd_file *fp); 12938c8a9a5SSteve French void ksmbd_vfs_set_fadvise(struct file *filp, __le32 option); 13038c8a9a5SSteve French int ksmbd_vfs_zero_data(struct ksmbd_work *work, struct ksmbd_file *fp, 13138c8a9a5SSteve French loff_t off, loff_t len); 13238c8a9a5SSteve French struct file_allocated_range_buffer; 13338c8a9a5SSteve French int ksmbd_vfs_fqar_lseek(struct ksmbd_file *fp, loff_t start, loff_t length, 13438c8a9a5SSteve French struct file_allocated_range_buffer *ranges, 13538c8a9a5SSteve French unsigned int in_count, unsigned int *out_count); 13638c8a9a5SSteve French int ksmbd_vfs_unlink(struct file *filp); 13738c8a9a5SSteve French void *ksmbd_vfs_init_kstat(char **p, struct ksmbd_kstat *ksmbd_kstat); 13838c8a9a5SSteve French int ksmbd_vfs_fill_dentry_attrs(struct ksmbd_work *work, 13938c8a9a5SSteve French struct mnt_idmap *idmap, 14038c8a9a5SSteve French struct dentry *dentry, 14138c8a9a5SSteve French struct ksmbd_kstat *ksmbd_kstat); 14238c8a9a5SSteve French void ksmbd_vfs_posix_lock_wait(struct file_lock *flock); 14338c8a9a5SSteve French int ksmbd_vfs_posix_lock_wait_timeout(struct file_lock *flock, long timeout); 14438c8a9a5SSteve French void ksmbd_vfs_posix_lock_unblock(struct file_lock *flock); 14538c8a9a5SSteve French int ksmbd_vfs_remove_acl_xattrs(struct mnt_idmap *idmap, 14640b268d3SNamjae Jeon const struct path *path); 14740b268d3SNamjae Jeon int ksmbd_vfs_remove_sd_xattrs(struct mnt_idmap *idmap, const struct path *path); 14838c8a9a5SSteve French int ksmbd_vfs_set_sd_xattr(struct ksmbd_conn *conn, 14938c8a9a5SSteve French struct mnt_idmap *idmap, 15040b268d3SNamjae Jeon const struct path *path, 1519ab2842cSNamjae Jeon struct smb_ntsd *pntsd, int len, 1529ab2842cSNamjae Jeon bool get_write); 15338c8a9a5SSteve French int ksmbd_vfs_get_sd_xattr(struct ksmbd_conn *conn, 15438c8a9a5SSteve French struct mnt_idmap *idmap, 15538c8a9a5SSteve French struct dentry *dentry, 15638c8a9a5SSteve French struct smb_ntsd **pntsd); 15738c8a9a5SSteve French int ksmbd_vfs_set_dos_attrib_xattr(struct mnt_idmap *idmap, 15840b268d3SNamjae Jeon const struct path *path, 1599ab2842cSNamjae Jeon struct xattr_dos_attrib *da, 1609ab2842cSNamjae Jeon bool get_write); 16138c8a9a5SSteve French int ksmbd_vfs_get_dos_attrib_xattr(struct mnt_idmap *idmap, 16238c8a9a5SSteve French struct dentry *dentry, 16338c8a9a5SSteve French struct xattr_dos_attrib *da); 16438c8a9a5SSteve French int ksmbd_vfs_set_init_posix_acl(struct mnt_idmap *idmap, 16540b268d3SNamjae Jeon struct path *path); 16638c8a9a5SSteve French int ksmbd_vfs_inherit_posix_acl(struct mnt_idmap *idmap, 16740b268d3SNamjae Jeon struct path *path, 16838c8a9a5SSteve French struct inode *parent_inode); 16938c8a9a5SSteve French #endif /* __KSMBD_VFS_H__ */ 170