^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: MIT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * VirtualBox Guest Shared Folders support: module header.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2006-2018 Oracle Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #ifndef VFSMOD_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #define VFSMOD_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/backing-dev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/idr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "shfl_hostintf.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define DIR_BUFFER_SIZE SZ_16K
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* The cast is to prevent assignment of void * to pointers of arbitrary type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define VBOXSF_SBI(sb) ((struct vboxsf_sbi *)(sb)->s_fs_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define VBOXSF_I(i) container_of(i, struct vboxsf_inode, vfs_inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct vboxsf_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct vboxsf_options {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) unsigned long ttl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) kuid_t uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) kgid_t gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) bool dmode_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) bool fmode_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) umode_t dmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) umode_t fmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) umode_t dmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) umode_t fmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct vboxsf_fs_context {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct vboxsf_options o;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) char *nls_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* per-shared folder information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct vboxsf_sbi {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct vboxsf_options o;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct shfl_fsobjinfo root_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct idr ino_idr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) spinlock_t ino_idr_lock; /* This protects ino_idr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct nls_table *nls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) u32 next_generation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u32 root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) int bdi_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* per-inode information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct vboxsf_inode {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* some information was changed, update data on next revalidate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) int force_restat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* list of open handles for this inode + lock protecting it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct list_head handle_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* This mutex protects handle_list accesses */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct mutex handle_list_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /* The VFS inode struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct inode vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct vboxsf_dir_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct list_head info_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct vboxsf_dir_buf {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) size_t entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) size_t free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) size_t used;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) void *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct list_head head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /* globals */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) extern const struct inode_operations vboxsf_dir_iops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) extern const struct inode_operations vboxsf_lnk_iops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) extern const struct inode_operations vboxsf_reg_iops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) extern const struct file_operations vboxsf_dir_fops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) extern const struct file_operations vboxsf_reg_fops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) extern const struct address_space_operations vboxsf_reg_aops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) extern const struct dentry_operations vboxsf_dentry_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /* from file.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct vboxsf_handle *vboxsf_create_sf_handle(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) u64 handle, u32 access_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) void vboxsf_release_sf_handle(struct inode *inode, struct vboxsf_handle *sf_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /* from utils.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct inode *vboxsf_new_inode(struct super_block *sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) void vboxsf_init_inode(struct vboxsf_sbi *sbi, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) const struct shfl_fsobjinfo *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) int vboxsf_create_at_dentry(struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct shfl_createparms *params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) int vboxsf_stat(struct vboxsf_sbi *sbi, struct shfl_string *path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct shfl_fsobjinfo *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) int vboxsf_stat_dentry(struct dentry *dentry, struct shfl_fsobjinfo *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) int vboxsf_inode_revalidate(struct dentry *dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) int vboxsf_getattr(const struct path *path, struct kstat *kstat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) u32 request_mask, unsigned int query_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int vboxsf_setattr(struct dentry *dentry, struct iattr *iattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct shfl_string *vboxsf_path_from_dentry(struct vboxsf_sbi *sbi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct dentry *dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) int vboxsf_nlscpy(struct vboxsf_sbi *sbi, char *name, size_t name_bound_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) const unsigned char *utf8_name, size_t utf8_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct vboxsf_dir_info *vboxsf_dir_info_alloc(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) void vboxsf_dir_info_free(struct vboxsf_dir_info *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) int vboxsf_dir_read_all(struct vboxsf_sbi *sbi, struct vboxsf_dir_info *sf_d,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) u64 handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* from vboxsf_wrappers.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) int vboxsf_connect(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) void vboxsf_disconnect(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) int vboxsf_create(u32 root, struct shfl_string *parsed_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct shfl_createparms *create_parms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) int vboxsf_close(u32 root, u64 handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) int vboxsf_remove(u32 root, struct shfl_string *parsed_path, u32 flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int vboxsf_rename(u32 root, struct shfl_string *src_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct shfl_string *dest_path, u32 flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) int vboxsf_read(u32 root, u64 handle, u64 offset, u32 *buf_len, u8 *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) int vboxsf_write(u32 root, u64 handle, u64 offset, u32 *buf_len, u8 *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int vboxsf_dirinfo(u32 root, u64 handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct shfl_string *parsed_path, u32 flags, u32 index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) u32 *buf_len, struct shfl_dirinfo *buf, u32 *file_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) int vboxsf_fsinfo(u32 root, u64 handle, u32 flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) u32 *buf_len, void *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int vboxsf_map_folder(struct shfl_string *folder_name, u32 *root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int vboxsf_unmap_folder(u32 root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int vboxsf_readlink(u32 root, struct shfl_string *parsed_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) u32 buf_len, u8 *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int vboxsf_symlink(u32 root, struct shfl_string *new_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) struct shfl_string *old_path, struct shfl_fsobjinfo *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) int vboxsf_set_utf8(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) int vboxsf_set_symlinks(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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