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

pkg/abi/linux/errno/errno.go

@@ -0,0 +1,187 @@
+// 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 errno holds errno codes for abi/linux.
+package errno
+
+// Errno represents a Linux errno value.
+type Errno uint32
+
+// Errno values from include/uapi/asm-generic/errno-base.h.
+const (
+	NOERRNO = iota
+	EPERM
+	ENOENT
+	ESRCH
+	EINTR
+	EIO
+	ENXIO
+	E2BIG
+	ENOEXEC
+	EBADF
+	ECHILD // 10
+	EAGAIN
+	ENOMEM
+	EACCES
+	EFAULT
+	ENOTBLK
+	EBUSY
+	EEXIST
+	EXDEV
+	ENODEV
+	ENOTDIR // 20
+	EISDIR
+	EINVAL
+	ENFILE
+	EMFILE
+	ENOTTY
+	ETXTBSY
+	EFBIG
+	ENOSPC
+	ESPIPE
+	EROFS // 30
+	EMLINK
+	EPIPE
+	EDOM
+	ERANGE
+	// Errno values from include/uapi/asm-generic/errno.h.
+	EDEADLK
+	ENAMETOOLONG
+	ENOLCK
+	ENOSYS
+	ENOTEMPTY
+	ELOOP  // 40
+	_      // Skip for EWOULDBLOCK = EAGAIN.
+	ENOMSG // 42
+	EIDRM
+	ECHRNG
+	EL2NSYNC
+	EL3HLT
+	EL3RST
+	ELNRNG
+	EUNATCH
+	ENOCSI
+	EL2HLT // 50
+	EBADE
+	EBADR
+	EXFULL
+	ENOANO
+	EBADRQC
+	EBADSLT
+	_ // Skip for EDEADLOCK = EDEADLK.
+	EBFONT
+	ENOSTR // 60
+	ENODATA
+	ETIME
+	ENOSR
+	ENONET
+	ENOPKG
+	EREMOTE
+	ENOLINK
+	EADV
+	ESRMNT
+	ECOMM // 70
+	EPROTO
+	EMULTIHOP
+	EDOTDOT
+	EBADMSG
+	EOVERFLOW
+	ENOTUNIQ
+	EBADFD
+	EREMCHG
+	ELIBACC
+	ELIBBAD // 80
+	ELIBSCN
+	ELIBMAX
+	ELIBEXEC
+	EILSEQ
+	ERESTART
+	ESTRPIPE
+	EUSERS
+	ENOTSOCK
+	EDESTADDRREQ
+	EMSGSIZE // 90
+	EPROTOTYPE
+	ENOPROTOOPT
+	EPROTONOSUPPORT
+	ESOCKTNOSUPPORT
+	EOPNOTSUPP
+	EPFNOSUPPORT
+	EAFNOSUPPORT
+	EADDRINUSE
+	EADDRNOTAVAIL
+	ENETDOWN // 100
+	ENETUNREACH
+	ENETRESET
+	ECONNABORTED
+	ECONNRESET
+	ENOBUFS
+	EISCONN
+	ENOTCONN
+	ESHUTDOWN
+	ETOOMANYREFS
+	ETIMEDOUT // 110
+	ECONNREFUSED
+	EHOSTDOWN
+	EHOSTUNREACH
+	EALREADY
+	EINPROGRESS
+	ESTALE
+	EUCLEAN
+	ENOTNAM
+	ENAVAIL
+	EISNAM // 120
+	EREMOTEIO
+	EDQUOT
+	ENOMEDIUM
+	EMEDIUMTYPE
+	ECANCELED
+	ENOKEY
+	EKEYEXPIRED
+	EKEYREVOKED
+	EKEYREJECTED
+	EOWNERDEAD // 130
+	ENOTRECOVERABLE
+	ERFKILL
+	EHWPOISON
+)
+
+// errnos derived from other errnos.
+const (
+	EWOULDBLOCK = EAGAIN
+	EDEADLOCK   = EDEADLK
+)
+
+// errnos for internal errors.
+const (
+	// ERESTARTSYS is returned by an interrupted syscall to indicate that it
+	// should be converted to EINTR if interrupted by a signal delivered to a
+	// user handler without SA_RESTART set, and restarted otherwise.
+	ERESTARTSYS = 512
+
+	// ERESTARTNOINTR is returned by an interrupted syscall to indicate that it
+	// should always be restarted.
+	ERESTARTNOINTR = 513
+
+	// ERESTARTNOHAND is returned by an interrupted syscall to indicate that it
+	// should be converted to EINTR if interrupted by a signal delivered to a
+	// user handler, and restarted otherwise.
+	ERESTARTNOHAND = 514
+
+	// ERESTART_RESTARTBLOCK is returned by an interrupted syscall to indicate
+	// that it should be restarted using a custom function. The interrupted
+	// syscall must register a custom restart function by calling
+	// Task.SetRestartSyscallFn.
+	ERESTART_RESTARTBLOCK = 516
+)

pkg/abi/linux/errno/errno_state_autogen.go

@@ -0,0 +1,3 @@
+// automatically generated by stateify.
+
+package errno