gvisor-lx/pkg/abi/linux/fs.go
Leadaxe 2c4ae3b0a4 snapshot: sagernet/gvisor v0.0.0-20250811.0-sing-box-mod.1
Содержимое пина, зафиксированного в go.mod sing-box-lx, одним коммитом
без истории. Полная история SagerNet/gvisor — 1.45 ГБ и клонируется в
каждой CI-джобе; наша дельта — одна вставка в одну функцию, история для
неё не нужна.

Module path github.com/sagernet/gvisor сохранён намеренно: на него
опирается replace-директива суперпроекта.

Патч поверх — отдельным коммитом, чтобы дельта читалась одним git show
и переносилась на новый пин копированием.

SPECS/TASKS/048-GVISOR_HANDSHAKE_NIL_CRASH
2026-08-04 15:50:08 +03:00

129 lines
3.3 KiB
Go

// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package linux
// Filesystem types used in statfs(2).
//
// See linux/magic.h.
const (
ANON_INODE_FS_MAGIC = 0x09041934
CGROUP_SUPER_MAGIC = 0x27e0eb
DEVPTS_SUPER_MAGIC = 0x00001cd1
EXT_SUPER_MAGIC = 0xef53
FUSE_SUPER_MAGIC = 0x65735546
MQUEUE_MAGIC = 0x19800202
NSFS_MAGIC = 0x6e736673
OVERLAYFS_SUPER_MAGIC = 0x794c7630
PIPEFS_MAGIC = 0x50495045
PROC_SUPER_MAGIC = 0x9fa0
RAMFS_MAGIC = 0x09041934
SOCKFS_MAGIC = 0x534F434B
SYSFS_MAGIC = 0x62656572
TMPFS_MAGIC = 0x01021994
V9FS_MAGIC = 0x01021997
)
// Filesystem path limits, from uapi/linux/limits.h.
const (
NAME_MAX = 255
PATH_MAX = 4096
)
// The bit mask f_flags in struct statfs, from include/linux/statfs.h
const (
ST_RDONLY = 0x0001
ST_NOSUID = 0x0002
ST_NODEV = 0x0004
ST_NOEXEC = 0x0008
ST_SYNCHRONOUS = 0x0010
ST_VALID = 0x0020
ST_MANDLOCK = 0x0040
ST_NOATIME = 0x0400
ST_NODIRATIME = 0x0800
ST_RELATIME = 0x1000
ST_NOSYMFOLLOW = 0x2000
)
// Statfs is struct statfs, from uapi/asm-generic/statfs.h.
//
// +marshal
type Statfs struct {
// Type is one of the filesystem magic values, defined above.
Type uint64
// BlockSize is the optimal transfer block size in bytes.
BlockSize int64
// Blocks is the maximum number of data blocks the filesystem may store, in
// units of BlockSize.
Blocks uint64
// BlocksFree is the number of free data blocks, in units of BlockSize.
BlocksFree uint64
// BlocksAvailable is the number of data blocks free for use by
// unprivileged users, in units of BlockSize.
BlocksAvailable uint64
// Files is the number of used file nodes on the filesystem.
Files uint64
// FileFress is the number of free file nodes on the filesystem.
FilesFree uint64
// FSID is the filesystem ID.
FSID [2]int32
// NameLength is the maximum file name length.
NameLength uint64
// FragmentSize is equivalent to BlockSize.
FragmentSize int64
// Flags is the set of filesystem mount flags.
Flags uint64
// Spare is unused.
Spare [4]uint64
}
// Whence argument to lseek(2), from include/uapi/linux/fs.h.
const (
SEEK_SET = 0
SEEK_CUR = 1
SEEK_END = 2
SEEK_DATA = 3
SEEK_HOLE = 4
)
// Sync_file_range flags, from include/uapi/linux/fs.h
const (
SYNC_FILE_RANGE_WAIT_BEFORE = 1
SYNC_FILE_RANGE_WRITE = 2
SYNC_FILE_RANGE_WAIT_AFTER = 4
)
// Flag argument to renameat2(2), from include/uapi/linux/fs.h.
const (
RENAME_NOREPLACE = (1 << 0) // Don't overwrite target.
RENAME_EXCHANGE = (1 << 1) // Exchange src and dst.
RENAME_WHITEOUT = (1 << 2) // Whiteout src.
)
// Overlayfs constants from include/linux/fs.h.
const (
WHITEOUT_MODE = 0
WHITEOUT_DEV = 0
)