Fix unknow driver test error

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 8856c1ec9557e58917421bf1b32724262745a795)
Signed-off-by: selansen <elango.siva@docker.com>

libnetwork/libnetwork_test.go

@@ -210,7 +210,7 @@ func TestUnknownDriver(t *testing.T) {
 		t.Fatal("Expected to fail. But instead succeeded")
 	}
 
-	if errdefs.IsNotFound(err) {
+	if !errdefs.IsNotFound(err) {
 		t.Fatalf("Did not fail with expected error. Actual error: %v", err)
 	}
 }

libnetwork/vendor.conf

@@ -14,8 +14,8 @@ github.com/coreos/go-systemd v17
 github.com/coreos/pkg fa29b1d70f0beaddd4c7021607cc3c3be8ce94b8
 github.com/deckarep/golang-set ef32fa3046d9f249d399f98ebaf9be944430fd1d
 
+github.com/docker/docker 162ba6016def672690ee4a1f3978368853a1e149
 github.com/docker/go-connections 7beb39f0b969b075d1325fecb092faf27fd357b6
-github.com/docker/docker 71cd53e4a197b303c6ba086bd584ffd67a884281
 github.com/docker/go-events 9461782956ad83b30282bf90e31fa6a70c255ba9
 github.com/docker/go-units 9e638d38cf6977a37a8ea0078f3ee75a7cdb2dd1
 github.com/docker/libkv 1d8431073ae03cdaedb198a89722f3aab6d418ef

libnetwork/vendor/github.com/containerd/console/tc_openbsd_cgo.go

@@ -1,51 +0,0 @@
-// +build openbsd,cgo
-
-/*
-   Copyright The containerd 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 console
-
-import (
-	"os"
-
-	"golang.org/x/sys/unix"
-)
-
-//#include <stdlib.h>
-import "C"
-
-const (
-	cmdTcGet = unix.TIOCGETA
-	cmdTcSet = unix.TIOCSETA
-)
-
-// ptsname retrieves the name of the first available pts for the given master.
-func ptsname(f *os.File) (string, error) {
-	ptspath, err := C.ptsname(C.int(f.Fd()))
-	if err != nil {
-		return "", err
-	}
-	return C.GoString(ptspath), nil
-}
-
-// unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
-// unlockpt should be called before opening the slave side of a pty.
-func unlockpt(f *os.File) error {
-	if _, err := C.grantpt(C.int(f.Fd())); err != nil {
-		return err
-	}
-	return nil
-}

libnetwork/vendor/github.com/containerd/console/tc_openbsd_nocgo.go

@@ -1,47 +0,0 @@
-// +build openbsd,!cgo
-
-/*
-   Copyright The containerd 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.
-*/
-
-//
-// Implementing the functions below requires cgo support.  Non-cgo stubs
-// versions are defined below to enable cross-compilation of source code
-// that depends on these functions, but the resultant cross-compiled
-// binaries cannot actually be used.  If the stub function(s) below are
-// actually invoked they will display an error message and cause the
-// calling process to exit.
-//
-
-package console
-
-import (
-	"os"
-
-	"golang.org/x/sys/unix"
-)
-
-const (
-	cmdTcGet = unix.TIOCGETA
-	cmdTcSet = unix.TIOCSETA
-)
-
-func ptsname(f *os.File) (string, error) {
-	panic("ptsname() support requires cgo.")
-}
-
-func unlockpt(f *os.File) error {
-	panic("unlockpt() support requires cgo.")
-}

libnetwork/vendor/github.com/coreos/go-systemd/NOTICE

@@ -1,5 +0,0 @@
-CoreOS Project
-Copyright 2018 CoreOS, Inc
-
-This product includes software developed at CoreOS, Inc.
-(http://www.coreos.com/).

libnetwork/vendor/github.com/coreos/go-systemd/util/util_cgo.go

@@ -1,175 +0,0 @@
-// Copyright 2016 CoreOS, Inc.
-//
-// 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.
-
-// +build cgo
-
-package util
-
-// #include <stdlib.h>
-// #include <sys/types.h>
-// #include <unistd.h>
-//
-// int
-// my_sd_pid_get_owner_uid(void *f, pid_t pid, uid_t *uid)
-// {
-//   int (*sd_pid_get_owner_uid)(pid_t, uid_t *);
-//
-//   sd_pid_get_owner_uid = (int (*)(pid_t, uid_t *))f;
-//   return sd_pid_get_owner_uid(pid, uid);
-// }
-//
-// int
-// my_sd_pid_get_unit(void *f, pid_t pid, char **unit)
-// {
-//   int (*sd_pid_get_unit)(pid_t, char **);
-//
-//   sd_pid_get_unit = (int (*)(pid_t, char **))f;
-//   return sd_pid_get_unit(pid, unit);
-// }
-//
-// int
-// my_sd_pid_get_slice(void *f, pid_t pid, char **slice)
-// {
-//   int (*sd_pid_get_slice)(pid_t, char **);
-//
-//   sd_pid_get_slice = (int (*)(pid_t, char **))f;
-//   return sd_pid_get_slice(pid, slice);
-// }
-//
-// int
-// am_session_leader()
-// {
-//   return (getsid(0) == getpid());
-// }
-import "C"
-import (
-	"fmt"
-	"syscall"
-	"unsafe"
-
-	"github.com/coreos/pkg/dlopen"
-)
-
-var libsystemdNames = []string{
-	// systemd < 209
-	"libsystemd-login.so.0",
-	"libsystemd-login.so",
-
-	// systemd >= 209 merged libsystemd-login into libsystemd proper
-	"libsystemd.so.0",
-	"libsystemd.so",
-}
-
-func getRunningSlice() (slice string, err error) {
-	var h *dlopen.LibHandle
-	h, err = dlopen.GetHandle(libsystemdNames)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if err1 := h.Close(); err1 != nil {
-			err = err1
-		}
-	}()
-
-	sd_pid_get_slice, err := h.GetSymbolPointer("sd_pid_get_slice")
-	if err != nil {
-		return
-	}
-
-	var s string
-	sl := C.CString(s)
-	defer C.free(unsafe.Pointer(sl))
-
-	ret := C.my_sd_pid_get_slice(sd_pid_get_slice, 0, &sl)
-	if ret < 0 {
-		err = fmt.Errorf("error calling sd_pid_get_slice: %v", syscall.Errno(-ret))
-		return
-	}
-
-	return C.GoString(sl), nil
-}
-
-func runningFromSystemService() (ret bool, err error) {
-	var h *dlopen.LibHandle
-	h, err = dlopen.GetHandle(libsystemdNames)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if err1 := h.Close(); err1 != nil {
-			err = err1
-		}
-	}()
-
-	sd_pid_get_owner_uid, err := h.GetSymbolPointer("sd_pid_get_owner_uid")
-	if err != nil {
-		return
-	}
-
-	var uid C.uid_t
-	errno := C.my_sd_pid_get_owner_uid(sd_pid_get_owner_uid, 0, &uid)
-	serrno := syscall.Errno(-errno)
-	// when we're running from a unit file, sd_pid_get_owner_uid returns
-	// ENOENT (systemd <220), ENXIO (systemd 220-223), or ENODATA
-	// (systemd >=234)
-	switch {
-	case errno >= 0:
-		ret = false
-	case serrno == syscall.ENOENT, serrno == syscall.ENXIO, serrno == syscall.ENODATA:
-		// Since the implementation of sessions in systemd relies on
-		// the `pam_systemd` module, using the sd_pid_get_owner_uid
-		// heuristic alone can result in false positives if that module
-		// (or PAM itself) is not present or properly configured on the
-		// system. As such, we also check if we're the session leader,
-		// which should be the case if we're invoked from a unit file,
-		// but not if e.g. we're invoked from the command line from a
-		// user's login session
-		ret = C.am_session_leader() == 1
-	default:
-		err = fmt.Errorf("error calling sd_pid_get_owner_uid: %v", syscall.Errno(-errno))
-	}
-	return
-}
-
-func currentUnitName() (unit string, err error) {
-	var h *dlopen.LibHandle
-	h, err = dlopen.GetHandle(libsystemdNames)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if err1 := h.Close(); err1 != nil {
-			err = err1
-		}
-	}()
-
-	sd_pid_get_unit, err := h.GetSymbolPointer("sd_pid_get_unit")
-	if err != nil {
-		return
-	}
-
-	var s string
-	u := C.CString(s)
-	defer C.free(unsafe.Pointer(u))
-
-	ret := C.my_sd_pid_get_unit(sd_pid_get_unit, 0, &u)
-	if ret < 0 {
-		err = fmt.Errorf("error calling sd_pid_get_unit: %v", syscall.Errno(-ret))
-		return
-	}
-
-	unit = C.GoString(u)
-	return
-}

libnetwork/vendor/github.com/coreos/go-systemd/util/util_stub.go

@@ -1,23 +0,0 @@
-// Copyright 2016 CoreOS, Inc.
-//
-// 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.
-
-// +build !cgo
-
-package util
-
-func getRunningSlice() (string, error) { return "", ErrNoCGO }
-
-func runningFromSystemService() (bool, error) { return false, ErrNoCGO }
-
-func currentUnitName() (string, error) { return "", ErrNoCGO }

libnetwork/vendor/github.com/coreos/pkg/NOTICE

@@ -1,5 +0,0 @@
-CoreOS Project
-Copyright 2014 CoreOS, Inc
-
-This product includes software developed at CoreOS, Inc.
-(http://www.coreos.com/).

libnetwork/vendor/github.com/coreos/pkg/README.md

@@ -1,4 +0,0 @@
-a collection of go utility packages
-
-[![Build Status](https://travis-ci.org/coreos/pkg.png?branch=master)](https://travis-ci.org/coreos/pkg)
-[![Godoc](http://img.shields.io/badge/godoc-reference-blue.svg?style=flat)](https://godoc.org/github.com/coreos/pkg)

libnetwork/vendor/github.com/coreos/pkg/dlopen/dlopen.go

@@ -1,82 +0,0 @@
-// Copyright 2016 CoreOS, Inc.
-//
-// 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 dlopen provides some convenience functions to dlopen a library and
-// get its symbols.
-package dlopen
-
-// #cgo LDFLAGS: -ldl
-// #include <stdlib.h>
-// #include <dlfcn.h>
-import "C"
-import (
-	"errors"
-	"fmt"
-	"unsafe"
-)
-
-var ErrSoNotFound = errors.New("unable to open a handle to the library")
-
-// LibHandle represents an open handle to a library (.so)
-type LibHandle struct {
-	Handle  unsafe.Pointer
-	Libname string
-}
-
-// GetHandle tries to get a handle to a library (.so), attempting to access it
-// by the names specified in libs and returning the first that is successfully
-// opened. Callers are responsible for closing the handler. If no library can
-// be successfully opened, an error is returned.
-func GetHandle(libs []string) (*LibHandle, error) {
-	for _, name := range libs {
-		libname := C.CString(name)
-		defer C.free(unsafe.Pointer(libname))
-		handle := C.dlopen(libname, C.RTLD_LAZY)
-		if handle != nil {
-			h := &LibHandle{
-				Handle:  handle,
-				Libname: name,
-			}
-			return h, nil
-		}
-	}
-	return nil, ErrSoNotFound
-}
-
-// GetSymbolPointer takes a symbol name and returns a pointer to the symbol.
-func (l *LibHandle) GetSymbolPointer(symbol string) (unsafe.Pointer, error) {
-	sym := C.CString(symbol)
-	defer C.free(unsafe.Pointer(sym))
-
-	C.dlerror()
-	p := C.dlsym(l.Handle, sym)
-	e := C.dlerror()
-	if e != nil {
-		return nil, fmt.Errorf("error resolving symbol %q: %v", symbol, errors.New(C.GoString(e)))
-	}
-
-	return p, nil
-}
-
-// Close closes a LibHandle.
-func (l *LibHandle) Close() error {
-	C.dlerror()
-	C.dlclose(l.Handle)
-	e := C.dlerror()
-	if e != nil {
-		return fmt.Errorf("error closing %v: %v", l.Libname, errors.New(C.GoString(e)))
-	}
-
-	return nil
-}

libnetwork/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go

@@ -1,56 +0,0 @@
-// Copyright 2015 CoreOS, Inc.
-//
-// 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.
-//
-// +build linux
-
-package dlopen
-
-// #include <string.h>
-// #include <stdlib.h>
-//
-// int
-// my_strlen(void *f, const char *s)
-// {
-//   size_t (*strlen)(const char *);
-//
-//   strlen = (size_t (*)(const char *))f;
-//   return strlen(s);
-// }
-import "C"
-
-import (
-	"fmt"
-	"unsafe"
-)
-
-func strlen(libs []string, s string) (int, error) {
-	h, err := GetHandle(libs)
-	if err != nil {
-		return -1, fmt.Errorf(`couldn't get a handle to the library: %v`, err)
-	}
-	defer h.Close()
-
-	f := "strlen"
-	cs := C.CString(s)
-	defer C.free(unsafe.Pointer(cs))
-
-	strlen, err := h.GetSymbolPointer(f)
-	if err != nil {
-		return -1, fmt.Errorf(`couldn't get symbol %q: %v`, f, err)
-	}
-
-	len := C.my_strlen(strlen, cs)
-
-	return int(len), nil
-}

libnetwork/vendor/github.com/cyphar/filepath-securejoin/README.md

@@ -1,65 +0,0 @@
-## `filepath-securejoin` ##
-
-[![Build Status](https://travis-ci.org/cyphar/filepath-securejoin.svg?branch=master)](https://travis-ci.org/cyphar/filepath-securejoin)
-
-An implementation of `SecureJoin`, a [candidate for inclusion in the Go
-standard library][go#20126]. The purpose of this function is to be a "secure"
-alternative to `filepath.Join`, and in particular it provides certain
-guarantees that are not provided by `filepath.Join`.
-
-This is the function prototype:
-
-```go
-func SecureJoin(root, unsafePath string) (string, error)
-```
-
-This library **guarantees** the following:
-
-* If no error is set, the resulting string **must** be a child path of
-  `SecureJoin` and will not contain any symlink path components (they will all
-  be expanded).
-
-* When expanding symlinks, all symlink path components **must** be resolved
-  relative to the provided root. In particular, this can be considered a
-  userspace implementation of how `chroot(2)` operates on file paths. Note that
-  these symlinks will **not** be expanded lexically (`filepath.Clean` is not
-  called on the input before processing).
-
-* Non-existant path components are unaffected by `SecureJoin` (similar to
-  `filepath.EvalSymlinks`'s semantics).
-
-* The returned path will always be `filepath.Clean`ed and thus not contain any
-  `..` components.
-
-A (trivial) implementation of this function on GNU/Linux systems could be done
-with the following (note that this requires root privileges and is far more
-opaque than the implementation in this library, and also requires that
-`readlink` is inside the `root` path):
-
-```go
-package securejoin
-
-import (
-	"os/exec"
-	"path/filepath"
-)
-
-func SecureJoin(root, unsafePath string) (string, error) {
-	unsafePath = string(filepath.Separator) + unsafePath
-	cmd := exec.Command("chroot", root,
-		"readlink", "--canonicalize-missing", "--no-newline", unsafePath)
-	output, err := cmd.CombinedOutput()
-	if err != nil {
-		return "", err
-	}
-	expanded := string(output)
-	return filepath.Join(root, expanded), nil
-}
-```
-
-[go#20126]: https://github.com/golang/go/issues/20126
-
-### License ###
-
-The license of this project is the same as Go, which is a BSD 3-clause license
-available in the `LICENSE` file.

libnetwork/vendor/github.com/cyphar/filepath-securejoin/join.go

@@ -1,135 +0,0 @@
-// Copyright (C) 2014-2015 Docker Inc & Go Authors. All rights reserved.
-// Copyright (C) 2017 SUSE LLC. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package securejoin is an implementation of the hopefully-soon-to-be-included
-// SecureJoin helper that is meant to be part of the "path/filepath" package.
-// The purpose of this project is to provide a PoC implementation to make the
-// SecureJoin proposal (https://github.com/golang/go/issues/20126) more
-// tangible.
-package securejoin
-
-import (
-	"bytes"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-	"syscall"
-
-	"github.com/pkg/errors"
-)
-
-// ErrSymlinkLoop is returned by SecureJoinVFS when too many symlinks have been
-// evaluated in attempting to securely join the two given paths.
-var ErrSymlinkLoop = fmt.Errorf("SecureJoin: too many links")
-
-// IsNotExist tells you if err is an error that implies that either the path
-// accessed does not exist (or path components don't exist). This is
-// effectively a more broad version of os.IsNotExist.
-func IsNotExist(err error) bool {
-	// If it's a bone-fide ENOENT just bail.
-	if os.IsNotExist(errors.Cause(err)) {
-		return true
-	}
-
-	// Check that it's not actually an ENOTDIR, which in some cases is a more
-	// convoluted case of ENOENT (usually involving weird paths).
-	var errno error
-	switch err := errors.Cause(err).(type) {
-	case *os.PathError:
-		errno = err.Err
-	case *os.LinkError:
-		errno = err.Err
-	case *os.SyscallError:
-		errno = err.Err
-	}
-	return errno == syscall.ENOTDIR || errno == syscall.ENOENT
-}
-
-// SecureJoinVFS joins the two given path components (similar to Join) except
-// that the returned path is guaranteed to be scoped inside the provided root
-// path (when evaluated). Any symbolic links in the path are evaluated with the
-// given root treated as the root of the filesystem, similar to a chroot. The
-// filesystem state is evaluated through the given VFS interface (if nil, the
-// standard os.* family of functions are used).
-//
-// Note that the guarantees provided by this function only apply if the path
-// components in the returned string are not modified (in other words are not
-// replaced with symlinks on the filesystem) after this function has returned.
-// Such a symlink race is necessarily out-of-scope of SecureJoin.
-func SecureJoinVFS(root, unsafePath string, vfs VFS) (string, error) {
-	// Use the os.* VFS implementation if none was specified.
-	if vfs == nil {
-		vfs = osVFS{}
-	}
-
-	var path bytes.Buffer
-	n := 0
-	for unsafePath != "" {
-		if n > 255 {
-			return "", ErrSymlinkLoop
-		}
-
-		// Next path component, p.
-		i := strings.IndexRune(unsafePath, filepath.Separator)
-		var p string
-		if i == -1 {
-			p, unsafePath = unsafePath, ""
-		} else {
-			p, unsafePath = unsafePath[:i], unsafePath[i+1:]
-		}
-
-		// Create a cleaned path, using the lexical semantics of /../a, to
-		// create a "scoped" path component which can safely be joined to fullP
-		// for evaluation. At this point, path.String() doesn't contain any
-		// symlink components.
-		cleanP := filepath.Clean(string(filepath.Separator) + path.String() + p)
-		if cleanP == string(filepath.Separator) {
-			path.Reset()
-			continue
-		}
-		fullP := filepath.Clean(root + cleanP)
-
-		// Figure out whether the path is a symlink.
-		fi, err := vfs.Lstat(fullP)
-		if err != nil && !IsNotExist(err) {
-			return "", err
-		}
-		// Treat non-existent path components the same as non-symlinks (we
-		// can't do any better here).
-		if IsNotExist(err) || fi.Mode()&os.ModeSymlink == 0 {
-			path.WriteString(p)
-			path.WriteRune(filepath.Separator)
-			continue
-		}
-
-		// Only increment when we actually dereference a link.
-		n++
-
-		// It's a symlink, expand it by prepending it to the yet-unparsed path.
-		dest, err := vfs.Readlink(fullP)
-		if err != nil {
-			return "", err
-		}
-		// Absolute symlinks reset any work we've already done.
-		if filepath.IsAbs(dest) {
-			path.Reset()
-		}
-		unsafePath = dest + string(filepath.Separator) + unsafePath
-	}
-
-	// We have to clean path.String() here because it may contain '..'
-	// components that are entirely lexical, but would be misleading otherwise.
-	// And finally do a final clean to ensure that root is also lexically
-	// clean.
-	fullP := filepath.Clean(string(filepath.Separator) + path.String())
-	return filepath.Clean(root + fullP), nil
-}
-
-// SecureJoin is a wrapper around SecureJoinVFS that just uses the os.* library
-// of functions as the VFS. If in doubt, use this function over SecureJoinVFS.
-func SecureJoin(root, unsafePath string) (string, error) {
-	return SecureJoinVFS(root, unsafePath, nil)
-}

libnetwork/vendor/github.com/cyphar/filepath-securejoin/vendor.conf

@@ -1 +0,0 @@
-github.com/pkg/errors v0.8.0

libnetwork/vendor/github.com/cyphar/filepath-securejoin/vfs.go

@@ -1,41 +0,0 @@
-// Copyright (C) 2017 SUSE LLC. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package securejoin
-
-import "os"
-
-// In future this should be moved into a separate package, because now there
-// are several projects (umoci and go-mtree) that are using this sort of
-// interface.
-
-// VFS is the minimal interface necessary to use SecureJoinVFS. A nil VFS is
-// equivalent to using the standard os.* family of functions. This is mainly
-// used for the purposes of mock testing, but also can be used to otherwise use
-// SecureJoin with VFS-like system.
-type VFS interface {
-	// Lstat returns a FileInfo describing the named file. If the file is a
-	// symbolic link, the returned FileInfo describes the symbolic link. Lstat
-	// makes no attempt to follow the link. These semantics are identical to
-	// os.Lstat.
-	Lstat(name string) (os.FileInfo, error)
-
-	// Readlink returns the destination of the named symbolic link. These
-	// semantics are identical to os.Readlink.
-	Readlink(name string) (string, error)
-}
-
-// osVFS is the "nil" VFS, in that it just passes everything through to the os
-// module.
-type osVFS struct{}
-
-// Lstat returns a FileInfo describing the named file. If the file is a
-// symbolic link, the returned FileInfo describes the symbolic link. Lstat
-// makes no attempt to follow the link. These semantics are identical to
-// os.Lstat.
-func (o osVFS) Lstat(name string) (os.FileInfo, error) { return os.Lstat(name) }
-
-// Readlink returns the destination of the named symbolic link. These
-// semantics are identical to os.Readlink.
-func (o osVFS) Readlink(name string) (string, error) { return os.Readlink(name) }

libnetwork/vendor/github.com/docker/docker/contrib/README.md

@@ -1,4 +0,0 @@
-The `contrib` directory contains scripts, images, and other helpful things
-which are not part of the core docker distribution. Please note that they
-could be out of date, since they do not receive the same attention as the
-rest of the repository.

libnetwork/vendor/github.com/docker/docker/contrib/nnp-test/nnp-test.c

@@ -1,10 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-
-int main(int argc, char *argv[])
-{
-        printf("EUID=%d\n", geteuid());
-        return 0;
-}
-

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/acct.c

@@ -1,16 +0,0 @@
-#define _GNU_SOURCE
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-int main(int argc, char **argv)
-{
-	int err = acct("/tmp/t");
-	if (err == -1) {
-		fprintf(stderr, "acct failed: %s\n", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-	exit(EXIT_SUCCESS);
-}

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/exit32.s

@@ -1,7 +0,0 @@
-.globl _start
-.text
-_start:
-	xorl	%eax, %eax
-	incl	%eax
-	movb	$0, %bl
-	int	$0x80

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/ns.c

@@ -1,63 +0,0 @@
-#define _GNU_SOURCE
-#include <errno.h>
-#include <sched.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#define STACK_SIZE (1024 * 1024)	/* Stack size for cloned child */
-
-struct clone_args {
-	char **argv;
-};
-
-// child_exec is the func that will be executed as the result of clone
-static int child_exec(void *stuff)
-{
-	struct clone_args *args = (struct clone_args *)stuff;
-	if (execvp(args->argv[0], args->argv) != 0) {
-		fprintf(stderr, "failed to execvp arguments %s\n",
-			strerror(errno));
-		exit(-1);
-	}
-	// we should never reach here!
-	exit(EXIT_FAILURE);
-}
-
-int main(int argc, char **argv)
-{
-	struct clone_args args;
-	args.argv = &argv[1];
-
-	int clone_flags = CLONE_NEWNS | CLONE_NEWPID | SIGCHLD;
-
-	// allocate stack for child
-	char *stack;		/* Start of stack buffer */
-	char *child_stack;	/* End of stack buffer */
-	stack =
-	    mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE,
-		 MAP_SHARED | MAP_ANON | MAP_STACK, -1, 0);
-	if (stack == MAP_FAILED) {
-		fprintf(stderr, "mmap failed: %s\n", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-	child_stack = stack + STACK_SIZE;	/* Assume stack grows downward */
-
-	// the result of this call is that our child_exec will be run in another
-	// process returning its pid
-	pid_t pid = clone(child_exec, child_stack, clone_flags, &args);
-	if (pid < 0) {
-		fprintf(stderr, "clone failed: %s\n", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-	// lets wait on our child process here before we, the parent, exits
-	if (waitpid(pid, NULL, 0) == -1) {
-		fprintf(stderr, "failed to wait pid %d\n", pid);
-		exit(EXIT_FAILURE);
-	}
-	exit(EXIT_SUCCESS);
-}

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/raw.c

@@ -1,14 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/socket.h>
-#include <netinet/ip.h>
-#include <netinet/udp.h>
-
-int main() {
-	if (socket(PF_INET, SOCK_RAW, IPPROTO_UDP) == -1) {
-		perror("socket");
-		return 1;
-	}
-
-	return 0;
-}

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/setgid.c

@@ -1,11 +0,0 @@
-#include <sys/types.h>
-#include <unistd.h>
-#include <stdio.h>
-
-int main() {
-	if (setgid(1) == -1) {
-		perror("setgid");
-		return 1;
-	}
-	return 0;
-}

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/setuid.c

@@ -1,11 +0,0 @@
-#include <sys/types.h>
-#include <unistd.h>
-#include <stdio.h>
-
-int main() {
-	if (setuid(1) == -1) {
-		perror("setuid");
-		return 1;
-	}
-	return 0;
-}

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/socket.c

@@ -1,30 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-int main() {
-	int s;
-	struct sockaddr_in sin;
-
-	s = socket(AF_INET, SOCK_STREAM, 0);
-	if (s == -1) {
-		perror("socket");
-		return 1;
-	}
-
-	sin.sin_family = AF_INET;
-	sin.sin_addr.s_addr = INADDR_ANY;
-	sin.sin_port = htons(80);
-
-	if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) == -1) {
-		perror("bind");
-		return 1;
-	}
-
-	close(s);
-
-	return 0;
-}

libnetwork/vendor/github.com/docker/docker/contrib/syscall-test/userns.c

@@ -1,63 +0,0 @@
-#define _GNU_SOURCE
-#include <errno.h>
-#include <sched.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#define STACK_SIZE (1024 * 1024)	/* Stack size for cloned child */
-
-struct clone_args {
-	char **argv;
-};
-
-// child_exec is the func that will be executed as the result of clone
-static int child_exec(void *stuff)
-{
-	struct clone_args *args = (struct clone_args *)stuff;
-	if (execvp(args->argv[0], args->argv) != 0) {
-		fprintf(stderr, "failed to execvp arguments %s\n",
-			strerror(errno));
-		exit(-1);
-	}
-	// we should never reach here!
-	exit(EXIT_FAILURE);
-}
-
-int main(int argc, char **argv)
-{
-	struct clone_args args;
-	args.argv = &argv[1];
-
-	int clone_flags = CLONE_NEWUSER | SIGCHLD;
-
-	// allocate stack for child
-	char *stack;		/* Start of stack buffer */
-	char *child_stack;	/* End of stack buffer */
-	stack =
-	    mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE,
-		 MAP_SHARED | MAP_ANON | MAP_STACK, -1, 0);
-	if (stack == MAP_FAILED) {
-		fprintf(stderr, "mmap failed: %s\n", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-	child_stack = stack + STACK_SIZE;	/* Assume stack grows downward */
-
-	// the result of this call is that our child_exec will be run in another
-	// process returning its pid
-	pid_t pid = clone(child_exec, child_stack, clone_flags, &args);
-	if (pid < 0) {
-		fprintf(stderr, "clone failed: %s\n", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-	// lets wait on our child process here before we, the parent, exits
-	if (waitpid(pid, NULL, 0) == -1) {
-		fprintf(stderr, "failed to wait pid %d\n", pid);
-		exit(EXIT_FAILURE);
-	}
-	exit(EXIT_SUCCESS);
-}

libnetwork/vendor/github.com/golang/protobuf/proto/discard.go

@@ -1,350 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2017 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
-	"fmt"
-	"reflect"
-	"strings"
-	"sync"
-	"sync/atomic"
-)
-
-type generatedDiscarder interface {
-	XXX_DiscardUnknown()
-}
-
-// DiscardUnknown recursively discards all unknown fields from this message
-// and all embedded messages.
-//
-// When unmarshaling a message with unrecognized fields, the tags and values
-// of such fields are preserved in the Message. This allows a later call to
-// marshal to be able to produce a message that continues to have those
-// unrecognized fields. To avoid this, DiscardUnknown is used to
-// explicitly clear the unknown fields after unmarshaling.
-//
-// For proto2 messages, the unknown fields of message extensions are only
-// discarded from messages that have been accessed via GetExtension.
-func DiscardUnknown(m Message) {
-	if m, ok := m.(generatedDiscarder); ok {
-		m.XXX_DiscardUnknown()
-		return
-	}
-	// TODO: Dynamically populate a InternalMessageInfo for legacy messages,
-	// but the master branch has no implementation for InternalMessageInfo,
-	// so it would be more work to replicate that approach.
-	discardLegacy(m)
-}
-
-// DiscardUnknown recursively discards all unknown fields.
-func (a *InternalMessageInfo) DiscardUnknown(m Message) {
-	di := atomicLoadDiscardInfo(&a.discard)
-	if di == nil {
-		di = getDiscardInfo(reflect.TypeOf(m).Elem())
-		atomicStoreDiscardInfo(&a.discard, di)
-	}
-	di.discard(toPointer(&m))
-}
-
-type discardInfo struct {
-	typ reflect.Type
-
-	initialized int32 // 0: only typ is valid, 1: everything is valid
-	lock        sync.Mutex
-
-	fields       []discardFieldInfo
-	unrecognized field
-}
-
-type discardFieldInfo struct {
-	field   field // Offset of field, guaranteed to be valid
-	discard func(src pointer)
-}
-
-var (
-	discardInfoMap  = map[reflect.Type]*discardInfo{}
-	discardInfoLock sync.Mutex
-)
-
-func getDiscardInfo(t reflect.Type) *discardInfo {
-	discardInfoLock.Lock()
-	defer discardInfoLock.Unlock()
-	di := discardInfoMap[t]
-	if di == nil {
-		di = &discardInfo{typ: t}
-		discardInfoMap[t] = di
-	}
-	return di
-}
-
-func (di *discardInfo) discard(src pointer) {
-	if src.isNil() {
-		return // Nothing to do.
-	}
-
-	if atomic.LoadInt32(&di.initialized) == 0 {
-		di.computeDiscardInfo()
-	}
-
-	for _, fi := range di.fields {
-		sfp := src.offset(fi.field)
-		fi.discard(sfp)
-	}
-
-	// For proto2 messages, only discard unknown fields in message extensions
-	// that have been accessed via GetExtension.
-	if em, err := extendable(src.asPointerTo(di.typ).Interface()); err == nil {
-		// Ignore lock since DiscardUnknown is not concurrency safe.
-		emm, _ := em.extensionsRead()
-		for _, mx := range emm {
-			if m, ok := mx.value.(Message); ok {
-				DiscardUnknown(m)
-			}
-		}
-	}
-
-	if di.unrecognized.IsValid() {
-		*src.offset(di.unrecognized).toBytes() = nil
-	}
-}
-
-func (di *discardInfo) computeDiscardInfo() {
-	di.lock.Lock()
-	defer di.lock.Unlock()
-	if di.initialized != 0 {
-		return
-	}
-	t := di.typ
-	n := t.NumField()
-
-	for i := 0; i < n; i++ {
-		f := t.Field(i)
-		if strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-
-		dfi := discardFieldInfo{field: toField(&f)}
-		tf := f.Type
-
-		// Unwrap tf to get its most basic type.
-		var isPointer, isSlice bool
-		if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 {
-			isSlice = true
-			tf = tf.Elem()
-		}
-		if tf.Kind() == reflect.Ptr {
-			isPointer = true
-			tf = tf.Elem()
-		}
-		if isPointer && isSlice && tf.Kind() != reflect.Struct {
-			panic(fmt.Sprintf("%v.%s cannot be a slice of pointers to primitive types", t, f.Name))
-		}
-
-		switch tf.Kind() {
-		case reflect.Struct:
-			switch {
-			case !isPointer:
-				panic(fmt.Sprintf("%v.%s cannot be a direct struct value", t, f.Name))
-			case isSlice: // E.g., []*pb.T
-				di := getDiscardInfo(tf)
-				dfi.discard = func(src pointer) {
-					sps := src.getPointerSlice()
-					for _, sp := range sps {
-						if !sp.isNil() {
-							di.discard(sp)
-						}
-					}
-				}
-			default: // E.g., *pb.T
-				di := getDiscardInfo(tf)
-				dfi.discard = func(src pointer) {
-					sp := src.getPointer()
-					if !sp.isNil() {
-						di.discard(sp)
-					}
-				}
-			}
-		case reflect.Map:
-			switch {
-			case isPointer || isSlice:
-				panic(fmt.Sprintf("%v.%s cannot be a pointer to a map or a slice of map values", t, f.Name))
-			default: // E.g., map[K]V
-				if tf.Elem().Kind() == reflect.Ptr { // Proto struct (e.g., *T)
-					dfi.discard = func(src pointer) {
-						sm := src.asPointerTo(tf).Elem()
-						if sm.Len() == 0 {
-							return
-						}
-						for _, key := range sm.MapKeys() {
-							val := sm.MapIndex(key)
-							DiscardUnknown(val.Interface().(Message))
-						}
-					}
-				} else {
-					dfi.discard = func(pointer) {} // Noop
-				}
-			}
-		case reflect.Interface:
-			// Must be oneof field.
-			switch {
-			case isPointer || isSlice:
-				panic(fmt.Sprintf("%v.%s cannot be a pointer to a interface or a slice of interface values", t, f.Name))
-			default: // E.g., interface{}
-				// TODO: Make this faster?
-				dfi.discard = func(src pointer) {
-					su := src.asPointerTo(tf).Elem()
-					if !su.IsNil() {
-						sv := su.Elem().Elem().Field(0)
-						if sv.Kind() == reflect.Ptr && sv.IsNil() {
-							return
-						}
-						switch sv.Type().Kind() {
-						case reflect.Ptr: // Proto struct (e.g., *T)
-							DiscardUnknown(sv.Interface().(Message))
-						}
-					}
-				}
-			}
-		default:
-			continue
-		}
-		di.fields = append(di.fields, dfi)
-	}
-
-	di.unrecognized = invalidField
-	if f, ok := t.FieldByName("XXX_unrecognized"); ok {
-		if f.Type != reflect.TypeOf([]byte{}) {
-			panic("expected XXX_unrecognized to be of type []byte")
-		}
-		di.unrecognized = toField(&f)
-	}
-
-	atomic.StoreInt32(&di.initialized, 1)
-}
-
-func discardLegacy(m Message) {
-	v := reflect.ValueOf(m)
-	if v.Kind() != reflect.Ptr || v.IsNil() {
-		return
-	}
-	v = v.Elem()
-	if v.Kind() != reflect.Struct {
-		return
-	}
-	t := v.Type()
-
-	for i := 0; i < v.NumField(); i++ {
-		f := t.Field(i)
-		if strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-		vf := v.Field(i)
-		tf := f.Type
-
-		// Unwrap tf to get its most basic type.
-		var isPointer, isSlice bool
-		if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 {
-			isSlice = true
-			tf = tf.Elem()
-		}
-		if tf.Kind() == reflect.Ptr {
-			isPointer = true
-			tf = tf.Elem()
-		}
-		if isPointer && isSlice && tf.Kind() != reflect.Struct {
-			panic(fmt.Sprintf("%T.%s cannot be a slice of pointers to primitive types", m, f.Name))
-		}
-
-		switch tf.Kind() {
-		case reflect.Struct:
-			switch {
-			case !isPointer:
-				panic(fmt.Sprintf("%T.%s cannot be a direct struct value", m, f.Name))
-			case isSlice: // E.g., []*pb.T
-				for j := 0; j < vf.Len(); j++ {
-					discardLegacy(vf.Index(j).Interface().(Message))
-				}
-			default: // E.g., *pb.T
-				discardLegacy(vf.Interface().(Message))
-			}
-		case reflect.Map:
-			switch {
-			case isPointer || isSlice:
-				panic(fmt.Sprintf("%T.%s cannot be a pointer to a map or a slice of map values", m, f.Name))
-			default: // E.g., map[K]V
-				tv := vf.Type().Elem()
-				if tv.Kind() == reflect.Ptr && tv.Implements(protoMessageType) { // Proto struct (e.g., *T)
-					for _, key := range vf.MapKeys() {
-						val := vf.MapIndex(key)
-						discardLegacy(val.Interface().(Message))
-					}
-				}
-			}
-		case reflect.Interface:
-			// Must be oneof field.
-			switch {
-			case isPointer || isSlice:
-				panic(fmt.Sprintf("%T.%s cannot be a pointer to a interface or a slice of interface values", m, f.Name))
-			default: // E.g., test_proto.isCommunique_Union interface
-				if !vf.IsNil() && f.Tag.Get("protobuf_oneof") != "" {
-					vf = vf.Elem() // E.g., *test_proto.Communique_Msg
-					if !vf.IsNil() {
-						vf = vf.Elem()   // E.g., test_proto.Communique_Msg
-						vf = vf.Field(0) // E.g., Proto struct (e.g., *T) or primitive value
-						if vf.Kind() == reflect.Ptr {
-							discardLegacy(vf.Interface().(Message))
-						}
-					}
-				}
-			}
-		}
-	}
-
-	if vf := v.FieldByName("XXX_unrecognized"); vf.IsValid() {
-		if vf.Type() != reflect.TypeOf([]byte{}) {
-			panic("expected XXX_unrecognized to be of type []byte")
-		}
-		vf.Set(reflect.ValueOf([]byte(nil)))
-	}
-
-	// For proto2 messages, only discard unknown fields in message extensions
-	// that have been accessed via GetExtension.
-	if em, err := extendable(m); err == nil {
-		// Ignore lock since discardLegacy is not concurrency safe.
-		emm, _ := em.extensionsRead()
-		for _, mx := range emm {
-			if m, ok := mx.value.(Message); ok {
-				discardLegacy(m)
-			}
-		}
-	}
-}

libnetwork/vendor/github.com/golang/protobuf/proto/table_marshal.go

@@ -1,2681 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2016 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
-	"errors"
-	"fmt"
-	"math"
-	"reflect"
-	"sort"
-	"strconv"
-	"strings"
-	"sync"
-	"sync/atomic"
-	"unicode/utf8"
-)
-
-// a sizer takes a pointer to a field and the size of its tag, computes the size of
-// the encoded data.
-type sizer func(pointer, int) int
-
-// a marshaler takes a byte slice, a pointer to a field, and its tag (in wire format),
-// marshals the field to the end of the slice, returns the slice and error (if any).
-type marshaler func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error)
-
-// marshalInfo is the information used for marshaling a message.
-type marshalInfo struct {
-	typ          reflect.Type
-	fields       []*marshalFieldInfo
-	unrecognized field                      // offset of XXX_unrecognized
-	extensions   field                      // offset of XXX_InternalExtensions
-	v1extensions field                      // offset of XXX_extensions
-	sizecache    field                      // offset of XXX_sizecache
-	initialized  int32                      // 0 -- only typ is set, 1 -- fully initialized
-	messageset   bool                       // uses message set wire format
-	hasmarshaler bool                       // has custom marshaler
-	sync.RWMutex                            // protect extElems map, also for initialization
-	extElems     map[int32]*marshalElemInfo // info of extension elements
-}
-
-// marshalFieldInfo is the information used for marshaling a field of a message.
-type marshalFieldInfo struct {
-	field      field
-	wiretag    uint64 // tag in wire format
-	tagsize    int    // size of tag in wire format
-	sizer      sizer
-	marshaler  marshaler
-	isPointer  bool
-	required   bool                              // field is required
-	name       string                            // name of the field, for error reporting
-	oneofElems map[reflect.Type]*marshalElemInfo // info of oneof elements
-}
-
-// marshalElemInfo is the information used for marshaling an extension or oneof element.
-type marshalElemInfo struct {
-	wiretag   uint64 // tag in wire format
-	tagsize   int    // size of tag in wire format
-	sizer     sizer
-	marshaler marshaler
-	isptr     bool // elem is pointer typed, thus interface of this type is a direct interface (extension only)
-}
-
-var (
-	marshalInfoMap  = map[reflect.Type]*marshalInfo{}
-	marshalInfoLock sync.Mutex
-)
-
-// getMarshalInfo returns the information to marshal a given type of message.
-// The info it returns may not necessarily initialized.
-// t is the type of the message (NOT the pointer to it).
-func getMarshalInfo(t reflect.Type) *marshalInfo {
-	marshalInfoLock.Lock()
-	u, ok := marshalInfoMap[t]
-	if !ok {
-		u = &marshalInfo{typ: t}
-		marshalInfoMap[t] = u
-	}
-	marshalInfoLock.Unlock()
-	return u
-}
-
-// Size is the entry point from generated code,
-// and should be ONLY called by generated code.
-// It computes the size of encoded data of msg.
-// a is a pointer to a place to store cached marshal info.
-func (a *InternalMessageInfo) Size(msg Message) int {
-	u := getMessageMarshalInfo(msg, a)
-	ptr := toPointer(&msg)
-	if ptr.isNil() {
-		// We get here if msg is a typed nil ((*SomeMessage)(nil)),
-		// so it satisfies the interface, and msg == nil wouldn't
-		// catch it. We don't want crash in this case.
-		return 0
-	}
-	return u.size(ptr)
-}
-
-// Marshal is the entry point from generated code,
-// and should be ONLY called by generated code.
-// It marshals msg to the end of b.
-// a is a pointer to a place to store cached marshal info.
-func (a *InternalMessageInfo) Marshal(b []byte, msg Message, deterministic bool) ([]byte, error) {
-	u := getMessageMarshalInfo(msg, a)
-	ptr := toPointer(&msg)
-	if ptr.isNil() {
-		// We get here if msg is a typed nil ((*SomeMessage)(nil)),
-		// so it satisfies the interface, and msg == nil wouldn't
-		// catch it. We don't want crash in this case.
-		return b, ErrNil
-	}
-	return u.marshal(b, ptr, deterministic)
-}
-
-func getMessageMarshalInfo(msg interface{}, a *InternalMessageInfo) *marshalInfo {
-	// u := a.marshal, but atomically.
-	// We use an atomic here to ensure memory consistency.
-	u := atomicLoadMarshalInfo(&a.marshal)
-	if u == nil {
-		// Get marshal information from type of message.
-		t := reflect.ValueOf(msg).Type()
-		if t.Kind() != reflect.Ptr {
-			panic(fmt.Sprintf("cannot handle non-pointer message type %v", t))
-		}
-		u = getMarshalInfo(t.Elem())
-		// Store it in the cache for later users.
-		// a.marshal = u, but atomically.
-		atomicStoreMarshalInfo(&a.marshal, u)
-	}
-	return u
-}
-
-// size is the main function to compute the size of the encoded data of a message.
-// ptr is the pointer to the message.
-func (u *marshalInfo) size(ptr pointer) int {
-	if atomic.LoadInt32(&u.initialized) == 0 {
-		u.computeMarshalInfo()
-	}
-
-	// If the message can marshal itself, let it do it, for compatibility.
-	// NOTE: This is not efficient.
-	if u.hasmarshaler {
-		m := ptr.asPointerTo(u.typ).Interface().(Marshaler)
-		b, _ := m.Marshal()
-		return len(b)
-	}
-
-	n := 0
-	for _, f := range u.fields {
-		if f.isPointer && ptr.offset(f.field).getPointer().isNil() {
-			// nil pointer always marshals to nothing
-			continue
-		}
-		n += f.sizer(ptr.offset(f.field), f.tagsize)
-	}
-	if u.extensions.IsValid() {
-		e := ptr.offset(u.extensions).toExtensions()
-		if u.messageset {
-			n += u.sizeMessageSet(e)
-		} else {
-			n += u.sizeExtensions(e)
-		}
-	}
-	if u.v1extensions.IsValid() {
-		m := *ptr.offset(u.v1extensions).toOldExtensions()
-		n += u.sizeV1Extensions(m)
-	}
-	if u.unrecognized.IsValid() {
-		s := *ptr.offset(u.unrecognized).toBytes()
-		n += len(s)
-	}
-	// cache the result for use in marshal
-	if u.sizecache.IsValid() {
-		atomic.StoreInt32(ptr.offset(u.sizecache).toInt32(), int32(n))
-	}
-	return n
-}
-
-// cachedsize gets the size from cache. If there is no cache (i.e. message is not generated),
-// fall back to compute the size.
-func (u *marshalInfo) cachedsize(ptr pointer) int {
-	if u.sizecache.IsValid() {
-		return int(atomic.LoadInt32(ptr.offset(u.sizecache).toInt32()))
-	}
-	return u.size(ptr)
-}
-
-// marshal is the main function to marshal a message. It takes a byte slice and appends
-// the encoded data to the end of the slice, returns the slice and error (if any).
-// ptr is the pointer to the message.
-// If deterministic is true, map is marshaled in deterministic order.
-func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte, error) {
-	if atomic.LoadInt32(&u.initialized) == 0 {
-		u.computeMarshalInfo()
-	}
-
-	// If the message can marshal itself, let it do it, for compatibility.
-	// NOTE: This is not efficient.
-	if u.hasmarshaler {
-		m := ptr.asPointerTo(u.typ).Interface().(Marshaler)
-		b1, err := m.Marshal()
-		b = append(b, b1...)
-		return b, err
-	}
-
-	var err, errreq error
-	// The old marshaler encodes extensions at beginning.
-	if u.extensions.IsValid() {
-		e := ptr.offset(u.extensions).toExtensions()
-		if u.messageset {
-			b, err = u.appendMessageSet(b, e, deterministic)
-		} else {
-			b, err = u.appendExtensions(b, e, deterministic)
-		}
-		if err != nil {
-			return b, err
-		}
-	}
-	if u.v1extensions.IsValid() {
-		m := *ptr.offset(u.v1extensions).toOldExtensions()
-		b, err = u.appendV1Extensions(b, m, deterministic)
-		if err != nil {
-			return b, err
-		}
-	}
-	for _, f := range u.fields {
-		if f.required && errreq == nil {
-			if ptr.offset(f.field).getPointer().isNil() {
-				// Required field is not set.
-				// We record the error but keep going, to give a complete marshaling.
-				errreq = &RequiredNotSetError{f.name}
-				continue
-			}
-		}
-		if f.isPointer && ptr.offset(f.field).getPointer().isNil() {
-			// nil pointer always marshals to nothing
-			continue
-		}
-		b, err = f.marshaler(b, ptr.offset(f.field), f.wiretag, deterministic)
-		if err != nil {
-			if err1, ok := err.(*RequiredNotSetError); ok {
-				// Required field in submessage is not set.
-				// We record the error but keep going, to give a complete marshaling.
-				if errreq == nil {
-					errreq = &RequiredNotSetError{f.name + "." + err1.field}
-				}
-				continue
-			}
-			if err == errRepeatedHasNil {
-				err = errors.New("proto: repeated field " + f.name + " has nil element")
-			}
-			return b, err
-		}
-	}
-	if u.unrecognized.IsValid() {
-		s := *ptr.offset(u.unrecognized).toBytes()
-		b = append(b, s...)
-	}
-	return b, errreq
-}
-
-// computeMarshalInfo initializes the marshal info.
-func (u *marshalInfo) computeMarshalInfo() {
-	u.Lock()
-	defer u.Unlock()
-	if u.initialized != 0 { // non-atomic read is ok as it is protected by the lock
-		return
-	}
-
-	t := u.typ
-	u.unrecognized = invalidField
-	u.extensions = invalidField
-	u.v1extensions = invalidField
-	u.sizecache = invalidField
-
-	// If the message can marshal itself, let it do it, for compatibility.
-	// NOTE: This is not efficient.
-	if reflect.PtrTo(t).Implements(marshalerType) {
-		u.hasmarshaler = true
-		atomic.StoreInt32(&u.initialized, 1)
-		return
-	}
-
-	// get oneof implementers
-	var oneofImplementers []interface{}
-	if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok {
-		_, _, _, oneofImplementers = m.XXX_OneofFuncs()
-	}
-
-	n := t.NumField()
-
-	// deal with XXX fields first
-	for i := 0; i < t.NumField(); i++ {
-		f := t.Field(i)
-		if !strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-		switch f.Name {
-		case "XXX_sizecache":
-			u.sizecache = toField(&f)
-		case "XXX_unrecognized":
-			u.unrecognized = toField(&f)
-		case "XXX_InternalExtensions":
-			u.extensions = toField(&f)
-			u.messageset = f.Tag.Get("protobuf_messageset") == "1"
-		case "XXX_extensions":
-			u.v1extensions = toField(&f)
-		case "XXX_NoUnkeyedLiteral":
-			// nothing to do
-		default:
-			panic("unknown XXX field: " + f.Name)
-		}
-		n--
-	}
-
-	// normal fields
-	fields := make([]marshalFieldInfo, n) // batch allocation
-	u.fields = make([]*marshalFieldInfo, 0, n)
-	for i, j := 0, 0; i < t.NumField(); i++ {
-		f := t.Field(i)
-
-		if strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-		field := &fields[j]
-		j++
-		field.name = f.Name
-		u.fields = append(u.fields, field)
-		if f.Tag.Get("protobuf_oneof") != "" {
-			field.computeOneofFieldInfo(&f, oneofImplementers)
-			continue
-		}
-		if f.Tag.Get("protobuf") == "" {
-			// field has no tag (not in generated message), ignore it
-			u.fields = u.fields[:len(u.fields)-1]
-			j--
-			continue
-		}
-		field.computeMarshalFieldInfo(&f)
-	}
-
-	// fields are marshaled in tag order on the wire.
-	sort.Sort(byTag(u.fields))
-
-	atomic.StoreInt32(&u.initialized, 1)
-}
-
-// helper for sorting fields by tag
-type byTag []*marshalFieldInfo
-
-func (a byTag) Len() int           { return len(a) }
-func (a byTag) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a byTag) Less(i, j int) bool { return a[i].wiretag < a[j].wiretag }
-
-// getExtElemInfo returns the information to marshal an extension element.
-// The info it returns is initialized.
-func (u *marshalInfo) getExtElemInfo(desc *ExtensionDesc) *marshalElemInfo {
-	// get from cache first
-	u.RLock()
-	e, ok := u.extElems[desc.Field]
-	u.RUnlock()
-	if ok {
-		return e
-	}
-
-	t := reflect.TypeOf(desc.ExtensionType) // pointer or slice to basic type or struct
-	tags := strings.Split(desc.Tag, ",")
-	tag, err := strconv.Atoi(tags[1])
-	if err != nil {
-		panic("tag is not an integer")
-	}
-	wt := wiretype(tags[0])
-	sizer, marshaler := typeMarshaler(t, tags, false, false)
-	e = &marshalElemInfo{
-		wiretag:   uint64(tag)<<3 | wt,
-		tagsize:   SizeVarint(uint64(tag) << 3),
-		sizer:     sizer,
-		marshaler: marshaler,
-		isptr:     t.Kind() == reflect.Ptr,
-	}
-
-	// update cache
-	u.Lock()
-	if u.extElems == nil {
-		u.extElems = make(map[int32]*marshalElemInfo)
-	}
-	u.extElems[desc.Field] = e
-	u.Unlock()
-	return e
-}
-
-// computeMarshalFieldInfo fills up the information to marshal a field.
-func (fi *marshalFieldInfo) computeMarshalFieldInfo(f *reflect.StructField) {
-	// parse protobuf tag of the field.
-	// tag has format of "bytes,49,opt,name=foo,def=hello!"
-	tags := strings.Split(f.Tag.Get("protobuf"), ",")
-	if tags[0] == "" {
-		return
-	}
-	tag, err := strconv.Atoi(tags[1])
-	if err != nil {
-		panic("tag is not an integer")
-	}
-	wt := wiretype(tags[0])
-	if tags[2] == "req" {
-		fi.required = true
-	}
-	fi.setTag(f, tag, wt)
-	fi.setMarshaler(f, tags)
-}
-
-func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofImplementers []interface{}) {
-	fi.field = toField(f)
-	fi.wiretag = 1<<31 - 1 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire.
-	fi.isPointer = true
-	fi.sizer, fi.marshaler = makeOneOfMarshaler(fi, f)
-	fi.oneofElems = make(map[reflect.Type]*marshalElemInfo)
-
-	ityp := f.Type // interface type
-	for _, o := range oneofImplementers {
-		t := reflect.TypeOf(o)
-		if !t.Implements(ityp) {
-			continue
-		}
-		sf := t.Elem().Field(0) // oneof implementer is a struct with a single field
-		tags := strings.Split(sf.Tag.Get("protobuf"), ",")
-		tag, err := strconv.Atoi(tags[1])
-		if err != nil {
-			panic("tag is not an integer")
-		}
-		wt := wiretype(tags[0])
-		sizer, marshaler := typeMarshaler(sf.Type, tags, false, true) // oneof should not omit any zero value
-		fi.oneofElems[t.Elem()] = &marshalElemInfo{
-			wiretag:   uint64(tag)<<3 | wt,
-			tagsize:   SizeVarint(uint64(tag) << 3),
-			sizer:     sizer,
-			marshaler: marshaler,
-		}
-	}
-}
-
-type oneofMessage interface {
-	XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{})
-}
-
-// wiretype returns the wire encoding of the type.
-func wiretype(encoding string) uint64 {
-	switch encoding {
-	case "fixed32":
-		return WireFixed32
-	case "fixed64":
-		return WireFixed64
-	case "varint", "zigzag32", "zigzag64":
-		return WireVarint
-	case "bytes":
-		return WireBytes
-	case "group":
-		return WireStartGroup
-	}
-	panic("unknown wire type " + encoding)
-}
-
-// setTag fills up the tag (in wire format) and its size in the info of a field.
-func (fi *marshalFieldInfo) setTag(f *reflect.StructField, tag int, wt uint64) {
-	fi.field = toField(f)
-	fi.wiretag = uint64(tag)<<3 | wt
-	fi.tagsize = SizeVarint(uint64(tag) << 3)
-}
-
-// setMarshaler fills up the sizer and marshaler in the info of a field.
-func (fi *marshalFieldInfo) setMarshaler(f *reflect.StructField, tags []string) {
-	switch f.Type.Kind() {
-	case reflect.Map:
-		// map field
-		fi.isPointer = true
-		fi.sizer, fi.marshaler = makeMapMarshaler(f)
-		return
-	case reflect.Ptr, reflect.Slice:
-		fi.isPointer = true
-	}
-	fi.sizer, fi.marshaler = typeMarshaler(f.Type, tags, true, false)
-}
-
-// typeMarshaler returns the sizer and marshaler of a given field.
-// t is the type of the field.
-// tags is the generated "protobuf" tag of the field.
-// If nozero is true, zero value is not marshaled to the wire.
-// If oneof is true, it is a oneof field.
-func typeMarshaler(t reflect.Type, tags []string, nozero, oneof bool) (sizer, marshaler) {
-	encoding := tags[0]
-
-	pointer := false
-	slice := false
-	if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 {
-		slice = true
-		t = t.Elem()
-	}
-	if t.Kind() == reflect.Ptr {
-		pointer = true
-		t = t.Elem()
-	}
-
-	packed := false
-	proto3 := false
-	for i := 2; i < len(tags); i++ {
-		if tags[i] == "packed" {
-			packed = true
-		}
-		if tags[i] == "proto3" {
-			proto3 = true
-		}
-	}
-
-	switch t.Kind() {
-	case reflect.Bool:
-		if pointer {
-			return sizeBoolPtr, appendBoolPtr
-		}
-		if slice {
-			if packed {
-				return sizeBoolPackedSlice, appendBoolPackedSlice
-			}
-			return sizeBoolSlice, appendBoolSlice
-		}
-		if nozero {
-			return sizeBoolValueNoZero, appendBoolValueNoZero
-		}
-		return sizeBoolValue, appendBoolValue
-	case reflect.Uint32:
-		switch encoding {
-		case "fixed32":
-			if pointer {
-				return sizeFixed32Ptr, appendFixed32Ptr
-			}
-			if slice {
-				if packed {
-					return sizeFixed32PackedSlice, appendFixed32PackedSlice
-				}
-				return sizeFixed32Slice, appendFixed32Slice
-			}
-			if nozero {
-				return sizeFixed32ValueNoZero, appendFixed32ValueNoZero
-			}
-			return sizeFixed32Value, appendFixed32Value
-		case "varint":
-			if pointer {
-				return sizeVarint32Ptr, appendVarint32Ptr
-			}
-			if slice {
-				if packed {
-					return sizeVarint32PackedSlice, appendVarint32PackedSlice
-				}
-				return sizeVarint32Slice, appendVarint32Slice
-			}
-			if nozero {
-				return sizeVarint32ValueNoZero, appendVarint32ValueNoZero
-			}
-			return sizeVarint32Value, appendVarint32Value
-		}
-	case reflect.Int32:
-		switch encoding {
-		case "fixed32":
-			if pointer {
-				return sizeFixedS32Ptr, appendFixedS32Ptr
-			}
-			if slice {
-				if packed {
-					return sizeFixedS32PackedSlice, appendFixedS32PackedSlice
-				}
-				return sizeFixedS32Slice, appendFixedS32Slice
-			}
-			if nozero {
-				return sizeFixedS32ValueNoZero, appendFixedS32ValueNoZero
-			}
-			return sizeFixedS32Value, appendFixedS32Value
-		case "varint":
-			if pointer {
-				return sizeVarintS32Ptr, appendVarintS32Ptr
-			}
-			if slice {
-				if packed {
-					return sizeVarintS32PackedSlice, appendVarintS32PackedSlice
-				}
-				return sizeVarintS32Slice, appendVarintS32Slice
-			}
-			if nozero {
-				return sizeVarintS32ValueNoZero, appendVarintS32ValueNoZero
-			}
-			return sizeVarintS32Value, appendVarintS32Value
-		case "zigzag32":
-			if pointer {
-				return sizeZigzag32Ptr, appendZigzag32Ptr
-			}
-			if slice {
-				if packed {
-					return sizeZigzag32PackedSlice, appendZigzag32PackedSlice
-				}
-				return sizeZigzag32Slice, appendZigzag32Slice
-			}
-			if nozero {
-				return sizeZigzag32ValueNoZero, appendZigzag32ValueNoZero
-			}
-			return sizeZigzag32Value, appendZigzag32Value
-		}
-	case reflect.Uint64:
-		switch encoding {
-		case "fixed64":
-			if pointer {
-				return sizeFixed64Ptr, appendFixed64Ptr
-			}
-			if slice {
-				if packed {
-					return sizeFixed64PackedSlice, appendFixed64PackedSlice
-				}
-				return sizeFixed64Slice, appendFixed64Slice
-			}
-			if nozero {
-				return sizeFixed64ValueNoZero, appendFixed64ValueNoZero
-			}
-			return sizeFixed64Value, appendFixed64Value
-		case "varint":
-			if pointer {
-				return sizeVarint64Ptr, appendVarint64Ptr
-			}
-			if slice {
-				if packed {
-					return sizeVarint64PackedSlice, appendVarint64PackedSlice
-				}
-				return sizeVarint64Slice, appendVarint64Slice
-			}
-			if nozero {
-				return sizeVarint64ValueNoZero, appendVarint64ValueNoZero
-			}
-			return sizeVarint64Value, appendVarint64Value
-		}
-	case reflect.Int64:
-		switch encoding {
-		case "fixed64":
-			if pointer {
-				return sizeFixedS64Ptr, appendFixedS64Ptr
-			}
-			if slice {
-				if packed {
-					return sizeFixedS64PackedSlice, appendFixedS64PackedSlice
-				}
-				return sizeFixedS64Slice, appendFixedS64Slice
-			}
-			if nozero {
-				return sizeFixedS64ValueNoZero, appendFixedS64ValueNoZero
-			}
-			return sizeFixedS64Value, appendFixedS64Value
-		case "varint":
-			if pointer {
-				return sizeVarintS64Ptr, appendVarintS64Ptr
-			}
-			if slice {
-				if packed {
-					return sizeVarintS64PackedSlice, appendVarintS64PackedSlice
-				}
-				return sizeVarintS64Slice, appendVarintS64Slice
-			}
-			if nozero {
-				return sizeVarintS64ValueNoZero, appendVarintS64ValueNoZero
-			}
-			return sizeVarintS64Value, appendVarintS64Value
-		case "zigzag64":
-			if pointer {
-				return sizeZigzag64Ptr, appendZigzag64Ptr
-			}
-			if slice {
-				if packed {
-					return sizeZigzag64PackedSlice, appendZigzag64PackedSlice
-				}
-				return sizeZigzag64Slice, appendZigzag64Slice
-			}
-			if nozero {
-				return sizeZigzag64ValueNoZero, appendZigzag64ValueNoZero
-			}
-			return sizeZigzag64Value, appendZigzag64Value
-		}
-	case reflect.Float32:
-		if pointer {
-			return sizeFloat32Ptr, appendFloat32Ptr
-		}
-		if slice {
-			if packed {
-				return sizeFloat32PackedSlice, appendFloat32PackedSlice
-			}
-			return sizeFloat32Slice, appendFloat32Slice
-		}
-		if nozero {
-			return sizeFloat32ValueNoZero, appendFloat32ValueNoZero
-		}
-		return sizeFloat32Value, appendFloat32Value
-	case reflect.Float64:
-		if pointer {
-			return sizeFloat64Ptr, appendFloat64Ptr
-		}
-		if slice {
-			if packed {
-				return sizeFloat64PackedSlice, appendFloat64PackedSlice
-			}
-			return sizeFloat64Slice, appendFloat64Slice
-		}
-		if nozero {
-			return sizeFloat64ValueNoZero, appendFloat64ValueNoZero
-		}
-		return sizeFloat64Value, appendFloat64Value
-	case reflect.String:
-		if pointer {
-			return sizeStringPtr, appendStringPtr
-		}
-		if slice {
-			return sizeStringSlice, appendStringSlice
-		}
-		if nozero {
-			return sizeStringValueNoZero, appendStringValueNoZero
-		}
-		return sizeStringValue, appendStringValue
-	case reflect.Slice:
-		if slice {
-			return sizeBytesSlice, appendBytesSlice
-		}
-		if oneof {
-			// Oneof bytes field may also have "proto3" tag.
-			// We want to marshal it as a oneof field. Do this
-			// check before the proto3 check.
-			return sizeBytesOneof, appendBytesOneof
-		}
-		if proto3 {
-			return sizeBytes3, appendBytes3
-		}
-		return sizeBytes, appendBytes
-	case reflect.Struct:
-		switch encoding {
-		case "group":
-			if slice {
-				return makeGroupSliceMarshaler(getMarshalInfo(t))
-			}
-			return makeGroupMarshaler(getMarshalInfo(t))
-		case "bytes":
-			if slice {
-				return makeMessageSliceMarshaler(getMarshalInfo(t))
-			}
-			return makeMessageMarshaler(getMarshalInfo(t))
-		}
-	}
-	panic(fmt.Sprintf("unknown or mismatched type: type: %v, wire type: %v", t, encoding))
-}
-
-// Below are functions to size/marshal a specific type of a field.
-// They are stored in the field's info, and called by function pointers.
-// They have type sizer or marshaler.
-
-func sizeFixed32Value(_ pointer, tagsize int) int {
-	return 4 + tagsize
-}
-func sizeFixed32ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toUint32()
-	if v == 0 {
-		return 0
-	}
-	return 4 + tagsize
-}
-func sizeFixed32Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toUint32Ptr()
-	if p == nil {
-		return 0
-	}
-	return 4 + tagsize
-}
-func sizeFixed32Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint32Slice()
-	return (4 + tagsize) * len(s)
-}
-func sizeFixed32PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint32Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize
-}
-func sizeFixedS32Value(_ pointer, tagsize int) int {
-	return 4 + tagsize
-}
-func sizeFixedS32ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toInt32()
-	if v == 0 {
-		return 0
-	}
-	return 4 + tagsize
-}
-func sizeFixedS32Ptr(ptr pointer, tagsize int) int {
-	p := ptr.getInt32Ptr()
-	if p == nil {
-		return 0
-	}
-	return 4 + tagsize
-}
-func sizeFixedS32Slice(ptr pointer, tagsize int) int {
-	s := ptr.getInt32Slice()
-	return (4 + tagsize) * len(s)
-}
-func sizeFixedS32PackedSlice(ptr pointer, tagsize int) int {
-	s := ptr.getInt32Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize
-}
-func sizeFloat32Value(_ pointer, tagsize int) int {
-	return 4 + tagsize
-}
-func sizeFloat32ValueNoZero(ptr pointer, tagsize int) int {
-	v := math.Float32bits(*ptr.toFloat32())
-	if v == 0 {
-		return 0
-	}
-	return 4 + tagsize
-}
-func sizeFloat32Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toFloat32Ptr()
-	if p == nil {
-		return 0
-	}
-	return 4 + tagsize
-}
-func sizeFloat32Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toFloat32Slice()
-	return (4 + tagsize) * len(s)
-}
-func sizeFloat32PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toFloat32Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize
-}
-func sizeFixed64Value(_ pointer, tagsize int) int {
-	return 8 + tagsize
-}
-func sizeFixed64ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toUint64()
-	if v == 0 {
-		return 0
-	}
-	return 8 + tagsize
-}
-func sizeFixed64Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toUint64Ptr()
-	if p == nil {
-		return 0
-	}
-	return 8 + tagsize
-}
-func sizeFixed64Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint64Slice()
-	return (8 + tagsize) * len(s)
-}
-func sizeFixed64PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint64Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize
-}
-func sizeFixedS64Value(_ pointer, tagsize int) int {
-	return 8 + tagsize
-}
-func sizeFixedS64ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toInt64()
-	if v == 0 {
-		return 0
-	}
-	return 8 + tagsize
-}
-func sizeFixedS64Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toInt64Ptr()
-	if p == nil {
-		return 0
-	}
-	return 8 + tagsize
-}
-func sizeFixedS64Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toInt64Slice()
-	return (8 + tagsize) * len(s)
-}
-func sizeFixedS64PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toInt64Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize
-}
-func sizeFloat64Value(_ pointer, tagsize int) int {
-	return 8 + tagsize
-}
-func sizeFloat64ValueNoZero(ptr pointer, tagsize int) int {
-	v := math.Float64bits(*ptr.toFloat64())
-	if v == 0 {
-		return 0
-	}
-	return 8 + tagsize
-}
-func sizeFloat64Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toFloat64Ptr()
-	if p == nil {
-		return 0
-	}
-	return 8 + tagsize
-}
-func sizeFloat64Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toFloat64Slice()
-	return (8 + tagsize) * len(s)
-}
-func sizeFloat64PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toFloat64Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize
-}
-func sizeVarint32Value(ptr pointer, tagsize int) int {
-	v := *ptr.toUint32()
-	return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarint32ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toUint32()
-	if v == 0 {
-		return 0
-	}
-	return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarint32Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toUint32Ptr()
-	if p == nil {
-		return 0
-	}
-	return SizeVarint(uint64(*p)) + tagsize
-}
-func sizeVarint32Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint32Slice()
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v)) + tagsize
-	}
-	return n
-}
-func sizeVarint32PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint32Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v))
-	}
-	return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeVarintS32Value(ptr pointer, tagsize int) int {
-	v := *ptr.toInt32()
-	return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS32ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toInt32()
-	if v == 0 {
-		return 0
-	}
-	return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS32Ptr(ptr pointer, tagsize int) int {
-	p := ptr.getInt32Ptr()
-	if p == nil {
-		return 0
-	}
-	return SizeVarint(uint64(*p)) + tagsize
-}
-func sizeVarintS32Slice(ptr pointer, tagsize int) int {
-	s := ptr.getInt32Slice()
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v)) + tagsize
-	}
-	return n
-}
-func sizeVarintS32PackedSlice(ptr pointer, tagsize int) int {
-	s := ptr.getInt32Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v))
-	}
-	return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeVarint64Value(ptr pointer, tagsize int) int {
-	v := *ptr.toUint64()
-	return SizeVarint(v) + tagsize
-}
-func sizeVarint64ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toUint64()
-	if v == 0 {
-		return 0
-	}
-	return SizeVarint(v) + tagsize
-}
-func sizeVarint64Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toUint64Ptr()
-	if p == nil {
-		return 0
-	}
-	return SizeVarint(*p) + tagsize
-}
-func sizeVarint64Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint64Slice()
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(v) + tagsize
-	}
-	return n
-}
-func sizeVarint64PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toUint64Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(v)
-	}
-	return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeVarintS64Value(ptr pointer, tagsize int) int {
-	v := *ptr.toInt64()
-	return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS64ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toInt64()
-	if v == 0 {
-		return 0
-	}
-	return SizeVarint(uint64(v)) + tagsize
-}
-func sizeVarintS64Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toInt64Ptr()
-	if p == nil {
-		return 0
-	}
-	return SizeVarint(uint64(*p)) + tagsize
-}
-func sizeVarintS64Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toInt64Slice()
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v)) + tagsize
-	}
-	return n
-}
-func sizeVarintS64PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toInt64Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v))
-	}
-	return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeZigzag32Value(ptr pointer, tagsize int) int {
-	v := *ptr.toInt32()
-	return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-}
-func sizeZigzag32ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toInt32()
-	if v == 0 {
-		return 0
-	}
-	return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-}
-func sizeZigzag32Ptr(ptr pointer, tagsize int) int {
-	p := ptr.getInt32Ptr()
-	if p == nil {
-		return 0
-	}
-	v := *p
-	return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-}
-func sizeZigzag32Slice(ptr pointer, tagsize int) int {
-	s := ptr.getInt32Slice()
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize
-	}
-	return n
-}
-func sizeZigzag32PackedSlice(ptr pointer, tagsize int) int {
-	s := ptr.getInt32Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31))))
-	}
-	return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeZigzag64Value(ptr pointer, tagsize int) int {
-	v := *ptr.toInt64()
-	return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-}
-func sizeZigzag64ValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toInt64()
-	if v == 0 {
-		return 0
-	}
-	return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-}
-func sizeZigzag64Ptr(ptr pointer, tagsize int) int {
-	p := *ptr.toInt64Ptr()
-	if p == nil {
-		return 0
-	}
-	v := *p
-	return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-}
-func sizeZigzag64Slice(ptr pointer, tagsize int) int {
-	s := *ptr.toInt64Slice()
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize
-	}
-	return n
-}
-func sizeZigzag64PackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toInt64Slice()
-	if len(s) == 0 {
-		return 0
-	}
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v<<1) ^ uint64((int64(v) >> 63)))
-	}
-	return n + SizeVarint(uint64(n)) + tagsize
-}
-func sizeBoolValue(_ pointer, tagsize int) int {
-	return 1 + tagsize
-}
-func sizeBoolValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toBool()
-	if !v {
-		return 0
-	}
-	return 1 + tagsize
-}
-func sizeBoolPtr(ptr pointer, tagsize int) int {
-	p := *ptr.toBoolPtr()
-	if p == nil {
-		return 0
-	}
-	return 1 + tagsize
-}
-func sizeBoolSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toBoolSlice()
-	return (1 + tagsize) * len(s)
-}
-func sizeBoolPackedSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toBoolSlice()
-	if len(s) == 0 {
-		return 0
-	}
-	return len(s) + SizeVarint(uint64(len(s))) + tagsize
-}
-func sizeStringValue(ptr pointer, tagsize int) int {
-	v := *ptr.toString()
-	return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeStringValueNoZero(ptr pointer, tagsize int) int {
-	v := *ptr.toString()
-	if v == "" {
-		return 0
-	}
-	return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeStringPtr(ptr pointer, tagsize int) int {
-	p := *ptr.toStringPtr()
-	if p == nil {
-		return 0
-	}
-	v := *p
-	return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeStringSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toStringSlice()
-	n := 0
-	for _, v := range s {
-		n += len(v) + SizeVarint(uint64(len(v))) + tagsize
-	}
-	return n
-}
-func sizeBytes(ptr pointer, tagsize int) int {
-	v := *ptr.toBytes()
-	if v == nil {
-		return 0
-	}
-	return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeBytes3(ptr pointer, tagsize int) int {
-	v := *ptr.toBytes()
-	if len(v) == 0 {
-		return 0
-	}
-	return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeBytesOneof(ptr pointer, tagsize int) int {
-	v := *ptr.toBytes()
-	return len(v) + SizeVarint(uint64(len(v))) + tagsize
-}
-func sizeBytesSlice(ptr pointer, tagsize int) int {
-	s := *ptr.toBytesSlice()
-	n := 0
-	for _, v := range s {
-		n += len(v) + SizeVarint(uint64(len(v))) + tagsize
-	}
-	return n
-}
-
-// appendFixed32 appends an encoded fixed32 to b.
-func appendFixed32(b []byte, v uint32) []byte {
-	b = append(b,
-		byte(v),
-		byte(v>>8),
-		byte(v>>16),
-		byte(v>>24))
-	return b
-}
-
-// appendFixed64 appends an encoded fixed64 to b.
-func appendFixed64(b []byte, v uint64) []byte {
-	b = append(b,
-		byte(v),
-		byte(v>>8),
-		byte(v>>16),
-		byte(v>>24),
-		byte(v>>32),
-		byte(v>>40),
-		byte(v>>48),
-		byte(v>>56))
-	return b
-}
-
-// appendVarint appends an encoded varint to b.
-func appendVarint(b []byte, v uint64) []byte {
-	// TODO: make 1-byte (maybe 2-byte) case inline-able, once we
-	// have non-leaf inliner.
-	switch {
-	case v < 1<<7:
-		b = append(b, byte(v))
-	case v < 1<<14:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte(v>>7))
-	case v < 1<<21:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte(v>>14))
-	case v < 1<<28:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte(v>>21))
-	case v < 1<<35:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte((v>>21)&0x7f|0x80),
-			byte(v>>28))
-	case v < 1<<42:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte((v>>21)&0x7f|0x80),
-			byte((v>>28)&0x7f|0x80),
-			byte(v>>35))
-	case v < 1<<49:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte((v>>21)&0x7f|0x80),
-			byte((v>>28)&0x7f|0x80),
-			byte((v>>35)&0x7f|0x80),
-			byte(v>>42))
-	case v < 1<<56:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte((v>>21)&0x7f|0x80),
-			byte((v>>28)&0x7f|0x80),
-			byte((v>>35)&0x7f|0x80),
-			byte((v>>42)&0x7f|0x80),
-			byte(v>>49))
-	case v < 1<<63:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte((v>>21)&0x7f|0x80),
-			byte((v>>28)&0x7f|0x80),
-			byte((v>>35)&0x7f|0x80),
-			byte((v>>42)&0x7f|0x80),
-			byte((v>>49)&0x7f|0x80),
-			byte(v>>56))
-	default:
-		b = append(b,
-			byte(v&0x7f|0x80),
-			byte((v>>7)&0x7f|0x80),
-			byte((v>>14)&0x7f|0x80),
-			byte((v>>21)&0x7f|0x80),
-			byte((v>>28)&0x7f|0x80),
-			byte((v>>35)&0x7f|0x80),
-			byte((v>>42)&0x7f|0x80),
-			byte((v>>49)&0x7f|0x80),
-			byte((v>>56)&0x7f|0x80),
-			1)
-	}
-	return b
-}
-
-func appendFixed32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint32()
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, v)
-	return b, nil
-}
-func appendFixed32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint32()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, v)
-	return b, nil
-}
-func appendFixed32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toUint32Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, *p)
-	return b, nil
-}
-func appendFixed32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint32Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendFixed32(b, v)
-	}
-	return b, nil
-}
-func appendFixed32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint32Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(4*len(s)))
-	for _, v := range s {
-		b = appendFixed32(b, v)
-	}
-	return b, nil
-}
-func appendFixedS32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt32()
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, uint32(v))
-	return b, nil
-}
-func appendFixedS32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt32()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, uint32(v))
-	return b, nil
-}
-func appendFixedS32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := ptr.getInt32Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, uint32(*p))
-	return b, nil
-}
-func appendFixedS32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := ptr.getInt32Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendFixed32(b, uint32(v))
-	}
-	return b, nil
-}
-func appendFixedS32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := ptr.getInt32Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(4*len(s)))
-	for _, v := range s {
-		b = appendFixed32(b, uint32(v))
-	}
-	return b, nil
-}
-func appendFloat32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := math.Float32bits(*ptr.toFloat32())
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, v)
-	return b, nil
-}
-func appendFloat32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := math.Float32bits(*ptr.toFloat32())
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, v)
-	return b, nil
-}
-func appendFloat32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toFloat32Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed32(b, math.Float32bits(*p))
-	return b, nil
-}
-func appendFloat32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toFloat32Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendFixed32(b, math.Float32bits(v))
-	}
-	return b, nil
-}
-func appendFloat32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toFloat32Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(4*len(s)))
-	for _, v := range s {
-		b = appendFixed32(b, math.Float32bits(v))
-	}
-	return b, nil
-}
-func appendFixed64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint64()
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, v)
-	return b, nil
-}
-func appendFixed64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint64()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, v)
-	return b, nil
-}
-func appendFixed64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toUint64Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, *p)
-	return b, nil
-}
-func appendFixed64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint64Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendFixed64(b, v)
-	}
-	return b, nil
-}
-func appendFixed64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint64Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(8*len(s)))
-	for _, v := range s {
-		b = appendFixed64(b, v)
-	}
-	return b, nil
-}
-func appendFixedS64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt64()
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, uint64(v))
-	return b, nil
-}
-func appendFixedS64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt64()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, uint64(v))
-	return b, nil
-}
-func appendFixedS64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toInt64Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, uint64(*p))
-	return b, nil
-}
-func appendFixedS64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toInt64Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendFixed64(b, uint64(v))
-	}
-	return b, nil
-}
-func appendFixedS64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toInt64Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(8*len(s)))
-	for _, v := range s {
-		b = appendFixed64(b, uint64(v))
-	}
-	return b, nil
-}
-func appendFloat64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := math.Float64bits(*ptr.toFloat64())
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, v)
-	return b, nil
-}
-func appendFloat64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := math.Float64bits(*ptr.toFloat64())
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, v)
-	return b, nil
-}
-func appendFloat64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toFloat64Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendFixed64(b, math.Float64bits(*p))
-	return b, nil
-}
-func appendFloat64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toFloat64Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendFixed64(b, math.Float64bits(v))
-	}
-	return b, nil
-}
-func appendFloat64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toFloat64Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(8*len(s)))
-	for _, v := range s {
-		b = appendFixed64(b, math.Float64bits(v))
-	}
-	return b, nil
-}
-func appendVarint32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint32()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v))
-	return b, nil
-}
-func appendVarint32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint32()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v))
-	return b, nil
-}
-func appendVarint32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toUint32Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(*p))
-	return b, nil
-}
-func appendVarint32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint32Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64(v))
-	}
-	return b, nil
-}
-func appendVarint32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint32Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	// compute size
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v))
-	}
-	b = appendVarint(b, uint64(n))
-	for _, v := range s {
-		b = appendVarint(b, uint64(v))
-	}
-	return b, nil
-}
-func appendVarintS32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt32()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v))
-	return b, nil
-}
-func appendVarintS32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt32()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v))
-	return b, nil
-}
-func appendVarintS32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := ptr.getInt32Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(*p))
-	return b, nil
-}
-func appendVarintS32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := ptr.getInt32Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64(v))
-	}
-	return b, nil
-}
-func appendVarintS32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := ptr.getInt32Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	// compute size
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v))
-	}
-	b = appendVarint(b, uint64(n))
-	for _, v := range s {
-		b = appendVarint(b, uint64(v))
-	}
-	return b, nil
-}
-func appendVarint64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint64()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, v)
-	return b, nil
-}
-func appendVarint64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toUint64()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, v)
-	return b, nil
-}
-func appendVarint64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toUint64Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, *p)
-	return b, nil
-}
-func appendVarint64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint64Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, v)
-	}
-	return b, nil
-}
-func appendVarint64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toUint64Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	// compute size
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(v)
-	}
-	b = appendVarint(b, uint64(n))
-	for _, v := range s {
-		b = appendVarint(b, v)
-	}
-	return b, nil
-}
-func appendVarintS64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt64()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v))
-	return b, nil
-}
-func appendVarintS64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt64()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v))
-	return b, nil
-}
-func appendVarintS64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toInt64Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(*p))
-	return b, nil
-}
-func appendVarintS64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toInt64Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64(v))
-	}
-	return b, nil
-}
-func appendVarintS64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toInt64Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	// compute size
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v))
-	}
-	b = appendVarint(b, uint64(n))
-	for _, v := range s {
-		b = appendVarint(b, uint64(v))
-	}
-	return b, nil
-}
-func appendZigzag32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt32()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
-	return b, nil
-}
-func appendZigzag32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt32()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
-	return b, nil
-}
-func appendZigzag32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := ptr.getInt32Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	v := *p
-	b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
-	return b, nil
-}
-func appendZigzag32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := ptr.getInt32Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
-	}
-	return b, nil
-}
-func appendZigzag32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := ptr.getInt32Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	// compute size
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31))))
-	}
-	b = appendVarint(b, uint64(n))
-	for _, v := range s {
-		b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31))))
-	}
-	return b, nil
-}
-func appendZigzag64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt64()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
-	return b, nil
-}
-func appendZigzag64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toInt64()
-	if v == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
-	return b, nil
-}
-func appendZigzag64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toInt64Ptr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	v := *p
-	b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
-	return b, nil
-}
-func appendZigzag64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toInt64Slice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
-	}
-	return b, nil
-}
-func appendZigzag64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toInt64Slice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	// compute size
-	n := 0
-	for _, v := range s {
-		n += SizeVarint(uint64(v<<1) ^ uint64((int64(v) >> 63)))
-	}
-	b = appendVarint(b, uint64(n))
-	for _, v := range s {
-		b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63)))
-	}
-	return b, nil
-}
-func appendBoolValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toBool()
-	b = appendVarint(b, wiretag)
-	if v {
-		b = append(b, 1)
-	} else {
-		b = append(b, 0)
-	}
-	return b, nil
-}
-func appendBoolValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toBool()
-	if !v {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = append(b, 1)
-	return b, nil
-}
-
-func appendBoolPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toBoolPtr()
-	if p == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	if *p {
-		b = append(b, 1)
-	} else {
-		b = append(b, 0)
-	}
-	return b, nil
-}
-func appendBoolSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toBoolSlice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		if v {
-			b = append(b, 1)
-		} else {
-			b = append(b, 0)
-		}
-	}
-	return b, nil
-}
-func appendBoolPackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toBoolSlice()
-	if len(s) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag&^7|WireBytes)
-	b = appendVarint(b, uint64(len(s)))
-	for _, v := range s {
-		if v {
-			b = append(b, 1)
-		} else {
-			b = append(b, 0)
-		}
-	}
-	return b, nil
-}
-func appendStringValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toString()
-	if !utf8.ValidString(v) {
-		return nil, errInvalidUTF8
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(len(v)))
-	b = append(b, v...)
-	return b, nil
-}
-func appendStringValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toString()
-	if v == "" {
-		return b, nil
-	}
-	if !utf8.ValidString(v) {
-		return nil, errInvalidUTF8
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(len(v)))
-	b = append(b, v...)
-	return b, nil
-}
-func appendStringPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	p := *ptr.toStringPtr()
-	if p == nil {
-		return b, nil
-	}
-	v := *p
-	if !utf8.ValidString(v) {
-		return nil, errInvalidUTF8
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(len(v)))
-	b = append(b, v...)
-	return b, nil
-}
-func appendStringSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toStringSlice()
-	for _, v := range s {
-		if !utf8.ValidString(v) {
-			return nil, errInvalidUTF8
-		}
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64(len(v)))
-		b = append(b, v...)
-	}
-	return b, nil
-}
-func appendBytes(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toBytes()
-	if v == nil {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(len(v)))
-	b = append(b, v...)
-	return b, nil
-}
-func appendBytes3(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toBytes()
-	if len(v) == 0 {
-		return b, nil
-	}
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(len(v)))
-	b = append(b, v...)
-	return b, nil
-}
-func appendBytesOneof(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	v := *ptr.toBytes()
-	b = appendVarint(b, wiretag)
-	b = appendVarint(b, uint64(len(v)))
-	b = append(b, v...)
-	return b, nil
-}
-func appendBytesSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) {
-	s := *ptr.toBytesSlice()
-	for _, v := range s {
-		b = appendVarint(b, wiretag)
-		b = appendVarint(b, uint64(len(v)))
-		b = append(b, v...)
-	}
-	return b, nil
-}
-
-// makeGroupMarshaler returns the sizer and marshaler for a group.
-// u is the marshal info of the underlying message.
-func makeGroupMarshaler(u *marshalInfo) (sizer, marshaler) {
-	return func(ptr pointer, tagsize int) int {
-			p := ptr.getPointer()
-			if p.isNil() {
-				return 0
-			}
-			return u.size(p) + 2*tagsize
-		},
-		func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
-			p := ptr.getPointer()
-			if p.isNil() {
-				return b, nil
-			}
-			var err error
-			b = appendVarint(b, wiretag) // start group
-			b, err = u.marshal(b, p, deterministic)
-			b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group
-			return b, err
-		}
-}
-
-// makeGroupSliceMarshaler returns the sizer and marshaler for a group slice.
-// u is the marshal info of the underlying message.
-func makeGroupSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
-	return func(ptr pointer, tagsize int) int {
-			s := ptr.getPointerSlice()
-			n := 0
-			for _, v := range s {
-				if v.isNil() {
-					continue
-				}
-				n += u.size(v) + 2*tagsize
-			}
-			return n
-		},
-		func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
-			s := ptr.getPointerSlice()
-			var err, errreq error
-			for _, v := range s {
-				if v.isNil() {
-					return b, errRepeatedHasNil
-				}
-				b = appendVarint(b, wiretag) // start group
-				b, err = u.marshal(b, v, deterministic)
-				b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group
-				if err != nil {
-					if _, ok := err.(*RequiredNotSetError); ok {
-						// Required field in submessage is not set.
-						// We record the error but keep going, to give a complete marshaling.
-						if errreq == nil {
-							errreq = err
-						}
-						continue
-					}
-					if err == ErrNil {
-						err = errRepeatedHasNil
-					}
-					return b, err
-				}
-			}
-			return b, errreq
-		}
-}
-
-// makeMessageMarshaler returns the sizer and marshaler for a message field.
-// u is the marshal info of the message.
-func makeMessageMarshaler(u *marshalInfo) (sizer, marshaler) {
-	return func(ptr pointer, tagsize int) int {
-			p := ptr.getPointer()
-			if p.isNil() {
-				return 0
-			}
-			siz := u.size(p)
-			return siz + SizeVarint(uint64(siz)) + tagsize
-		},
-		func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
-			p := ptr.getPointer()
-			if p.isNil() {
-				return b, nil
-			}
-			b = appendVarint(b, wiretag)
-			siz := u.cachedsize(p)
-			b = appendVarint(b, uint64(siz))
-			return u.marshal(b, p, deterministic)
-		}
-}
-
-// makeMessageSliceMarshaler returns the sizer and marshaler for a message slice.
-// u is the marshal info of the message.
-func makeMessageSliceMarshaler(u *marshalInfo) (sizer, marshaler) {
-	return func(ptr pointer, tagsize int) int {
-			s := ptr.getPointerSlice()
-			n := 0
-			for _, v := range s {
-				if v.isNil() {
-					continue
-				}
-				siz := u.size(v)
-				n += siz + SizeVarint(uint64(siz)) + tagsize
-			}
-			return n
-		},
-		func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) {
-			s := ptr.getPointerSlice()
-			var err, errreq error
-			for _, v := range s {
-				if v.isNil() {
-					return b, errRepeatedHasNil
-				}
-				b = appendVarint(b, wiretag)
-				siz := u.cachedsize(v)
-				b = appendVarint(b, uint64(siz))
-				b, err = u.marshal(b, v, deterministic)
-
-				if err != nil {
-					if _, ok := err.(*RequiredNotSetError); ok {
-						// Required field in submessage is not set.
-						// We record the error but keep going, to give a complete marshaling.
-						if errreq == nil {
-							errreq = err
-						}
-						continue
-					}
-					if err == ErrNil {
-						err = errRepeatedHasNil
-					}
-					return b, err
-				}
-			}
-			return b, errreq
-		}
-}
-
-// makeMapMarshaler returns the sizer and marshaler for a map field.
-// f is the pointer to the reflect data structure of the field.
-func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) {
-	// figure out key and value type
-	t := f.Type
-	keyType := t.Key()
-	valType := t.Elem()
-	keyTags := strings.Split(f.Tag.Get("protobuf_key"), ",")
-	valTags := strings.Split(f.Tag.Get("protobuf_val"), ",")
-	keySizer, keyMarshaler := typeMarshaler(keyType, keyTags, false, false) // don't omit zero value in map
-	valSizer, valMarshaler := typeMarshaler(valType, valTags, false, false) // don't omit zero value in map
-	keyWireTag := 1<<3 | wiretype(keyTags[0])
-	valWireTag := 2<<3 | wiretype(valTags[0])
-
-	// We create an interface to get the addresses of the map key and value.
-	// If value is pointer-typed, the interface is a direct interface, the
-	// idata itself is the value. Otherwise, the idata is the pointer to the
-	// value.
-	// Key cannot be pointer-typed.
-	valIsPtr := valType.Kind() == reflect.Ptr
-	return func(ptr pointer, tagsize int) int {
-			m := ptr.asPointerTo(t).Elem() // the map
-			n := 0
-			for _, k := range m.MapKeys() {
-				ki := k.Interface()
-				vi := m.MapIndex(k).Interface()
-				kaddr := toAddrPointer(&ki, false)             // pointer to key
-				vaddr := toAddrPointer(&vi, valIsPtr)          // pointer to value
-				siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1)
-				n += siz + SizeVarint(uint64(siz)) + tagsize
-			}
-			return n
-		},
-		func(b []byte, ptr pointer, tag uint64, deterministic bool) ([]byte, error) {
-			m := ptr.asPointerTo(t).Elem() // the map
-			var err error
-			keys := m.MapKeys()
-			if len(keys) > 1 && deterministic {
-				sort.Sort(mapKeys(keys))
-			}
-			for _, k := range keys {
-				ki := k.Interface()
-				vi := m.MapIndex(k).Interface()
-				kaddr := toAddrPointer(&ki, false)    // pointer to key
-				vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value
-				b = appendVarint(b, tag)
-				siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1)
-				b = appendVarint(b, uint64(siz))
-				b, err = keyMarshaler(b, kaddr, keyWireTag, deterministic)
-				if err != nil {
-					return b, err
-				}
-				b, err = valMarshaler(b, vaddr, valWireTag, deterministic)
-				if err != nil && err != ErrNil { // allow nil value in map
-					return b, err
-				}
-			}
-			return b, nil
-		}
-}
-
-// makeOneOfMarshaler returns the sizer and marshaler for a oneof field.
-// fi is the marshal info of the field.
-// f is the pointer to the reflect data structure of the field.
-func makeOneOfMarshaler(fi *marshalFieldInfo, f *reflect.StructField) (sizer, marshaler) {
-	// Oneof field is an interface. We need to get the actual data type on the fly.
-	t := f.Type
-	return func(ptr pointer, _ int) int {
-			p := ptr.getInterfacePointer()
-			if p.isNil() {
-				return 0
-			}
-			v := ptr.asPointerTo(t).Elem().Elem().Elem() // *interface -> interface -> *struct -> struct
-			telem := v.Type()
-			e := fi.oneofElems[telem]
-			return e.sizer(p, e.tagsize)
-		},
-		func(b []byte, ptr pointer, _ uint64, deterministic bool) ([]byte, error) {
-			p := ptr.getInterfacePointer()
-			if p.isNil() {
-				return b, nil
-			}
-			v := ptr.asPointerTo(t).Elem().Elem().Elem() // *interface -> interface -> *struct -> struct
-			telem := v.Type()
-			if telem.Field(0).Type.Kind() == reflect.Ptr && p.getPointer().isNil() {
-				return b, errOneofHasNil
-			}
-			e := fi.oneofElems[telem]
-			return e.marshaler(b, p, e.wiretag, deterministic)
-		}
-}
-
-// sizeExtensions computes the size of encoded data for a XXX_InternalExtensions field.
-func (u *marshalInfo) sizeExtensions(ext *XXX_InternalExtensions) int {
-	m, mu := ext.extensionsRead()
-	if m == nil {
-		return 0
-	}
-	mu.Lock()
-
-	n := 0
-	for _, e := range m {
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			n += len(e.enc)
-			continue
-		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-		ei := u.getExtElemInfo(e.desc)
-		v := e.value
-		p := toAddrPointer(&v, ei.isptr)
-		n += ei.sizer(p, ei.tagsize)
-	}
-	mu.Unlock()
-	return n
-}
-
-// appendExtensions marshals a XXX_InternalExtensions field to the end of byte slice b.
-func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, deterministic bool) ([]byte, error) {
-	m, mu := ext.extensionsRead()
-	if m == nil {
-		return b, nil
-	}
-	mu.Lock()
-	defer mu.Unlock()
-
-	var err error
-
-	// Fast-path for common cases: zero or one extensions.
-	// Don't bother sorting the keys.
-	if len(m) <= 1 {
-		for _, e := range m {
-			if e.value == nil || e.desc == nil {
-				// Extension is only in its encoded form.
-				b = append(b, e.enc...)
-				continue
-			}
-
-			// We don't skip extensions that have an encoded form set,
-			// because the extension value may have been mutated after
-			// the last time this function was called.
-
-			ei := u.getExtElemInfo(e.desc)
-			v := e.value
-			p := toAddrPointer(&v, ei.isptr)
-			b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
-			if err != nil {
-				return b, err
-			}
-		}
-		return b, nil
-	}
-
-	// Sort the keys to provide a deterministic encoding.
-	// Not sure this is required, but the old code does it.
-	keys := make([]int, 0, len(m))
-	for k := range m {
-		keys = append(keys, int(k))
-	}
-	sort.Ints(keys)
-
-	for _, k := range keys {
-		e := m[int32(k)]
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			b = append(b, e.enc...)
-			continue
-		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		ei := u.getExtElemInfo(e.desc)
-		v := e.value
-		p := toAddrPointer(&v, ei.isptr)
-		b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
-		if err != nil {
-			return b, err
-		}
-	}
-	return b, nil
-}
-
-// message set format is:
-//   message MessageSet {
-//     repeated group Item = 1 {
-//       required int32 type_id = 2;
-//       required string message = 3;
-//     };
-//   }
-
-// sizeMessageSet computes the size of encoded data for a XXX_InternalExtensions field
-// in message set format (above).
-func (u *marshalInfo) sizeMessageSet(ext *XXX_InternalExtensions) int {
-	m, mu := ext.extensionsRead()
-	if m == nil {
-		return 0
-	}
-	mu.Lock()
-
-	n := 0
-	for id, e := range m {
-		n += 2                          // start group, end group. tag = 1 (size=1)
-		n += SizeVarint(uint64(id)) + 1 // type_id, tag = 2 (size=1)
-
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint
-			siz := len(msgWithLen)
-			n += siz + 1 // message, tag = 3 (size=1)
-			continue
-		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		ei := u.getExtElemInfo(e.desc)
-		v := e.value
-		p := toAddrPointer(&v, ei.isptr)
-		n += ei.sizer(p, 1) // message, tag = 3 (size=1)
-	}
-	mu.Unlock()
-	return n
-}
-
-// appendMessageSet marshals a XXX_InternalExtensions field in message set format (above)
-// to the end of byte slice b.
-func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, deterministic bool) ([]byte, error) {
-	m, mu := ext.extensionsRead()
-	if m == nil {
-		return b, nil
-	}
-	mu.Lock()
-	defer mu.Unlock()
-
-	var err error
-
-	// Fast-path for common cases: zero or one extensions.
-	// Don't bother sorting the keys.
-	if len(m) <= 1 {
-		for id, e := range m {
-			b = append(b, 1<<3|WireStartGroup)
-			b = append(b, 2<<3|WireVarint)
-			b = appendVarint(b, uint64(id))
-
-			if e.value == nil || e.desc == nil {
-				// Extension is only in its encoded form.
-				msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint
-				b = append(b, 3<<3|WireBytes)
-				b = append(b, msgWithLen...)
-				b = append(b, 1<<3|WireEndGroup)
-				continue
-			}
-
-			// We don't skip extensions that have an encoded form set,
-			// because the extension value may have been mutated after
-			// the last time this function was called.
-
-			ei := u.getExtElemInfo(e.desc)
-			v := e.value
-			p := toAddrPointer(&v, ei.isptr)
-			b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic)
-			if err != nil {
-				return b, err
-			}
-			b = append(b, 1<<3|WireEndGroup)
-		}
-		return b, nil
-	}
-
-	// Sort the keys to provide a deterministic encoding.
-	keys := make([]int, 0, len(m))
-	for k := range m {
-		keys = append(keys, int(k))
-	}
-	sort.Ints(keys)
-
-	for _, id := range keys {
-		e := m[int32(id)]
-		b = append(b, 1<<3|WireStartGroup)
-		b = append(b, 2<<3|WireVarint)
-		b = appendVarint(b, uint64(id))
-
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint
-			b = append(b, 3<<3|WireBytes)
-			b = append(b, msgWithLen...)
-			b = append(b, 1<<3|WireEndGroup)
-			continue
-		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		ei := u.getExtElemInfo(e.desc)
-		v := e.value
-		p := toAddrPointer(&v, ei.isptr)
-		b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic)
-		b = append(b, 1<<3|WireEndGroup)
-		if err != nil {
-			return b, err
-		}
-	}
-	return b, nil
-}
-
-// sizeV1Extensions computes the size of encoded data for a V1-API extension field.
-func (u *marshalInfo) sizeV1Extensions(m map[int32]Extension) int {
-	if m == nil {
-		return 0
-	}
-
-	n := 0
-	for _, e := range m {
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			n += len(e.enc)
-			continue
-		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		ei := u.getExtElemInfo(e.desc)
-		v := e.value
-		p := toAddrPointer(&v, ei.isptr)
-		n += ei.sizer(p, ei.tagsize)
-	}
-	return n
-}
-
-// appendV1Extensions marshals a V1-API extension field to the end of byte slice b.
-func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, deterministic bool) ([]byte, error) {
-	if m == nil {
-		return b, nil
-	}
-
-	// Sort the keys to provide a deterministic encoding.
-	keys := make([]int, 0, len(m))
-	for k := range m {
-		keys = append(keys, int(k))
-	}
-	sort.Ints(keys)
-
-	var err error
-	for _, k := range keys {
-		e := m[int32(k)]
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			b = append(b, e.enc...)
-			continue
-		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		ei := u.getExtElemInfo(e.desc)
-		v := e.value
-		p := toAddrPointer(&v, ei.isptr)
-		b, err = ei.marshaler(b, p, ei.wiretag, deterministic)
-		if err != nil {
-			return b, err
-		}
-	}
-	return b, nil
-}
-
-// newMarshaler is the interface representing objects that can marshal themselves.
-//
-// This exists to support protoc-gen-go generated messages.
-// The proto package will stop type-asserting to this interface in the future.
-//
-// DO NOT DEPEND ON THIS.
-type newMarshaler interface {
-	XXX_Size() int
-	XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
-}
-
-// Size returns the encoded size of a protocol buffer message.
-// This is the main entry point.
-func Size(pb Message) int {
-	if m, ok := pb.(newMarshaler); ok {
-		return m.XXX_Size()
-	}
-	if m, ok := pb.(Marshaler); ok {
-		// If the message can marshal itself, let it do it, for compatibility.
-		// NOTE: This is not efficient.
-		b, _ := m.Marshal()
-		return len(b)
-	}
-	// in case somehow we didn't generate the wrapper
-	if pb == nil {
-		return 0
-	}
-	var info InternalMessageInfo
-	return info.Size(pb)
-}
-
-// Marshal takes a protocol buffer message
-// and encodes it into the wire format, returning the data.
-// This is the main entry point.
-func Marshal(pb Message) ([]byte, error) {
-	if m, ok := pb.(newMarshaler); ok {
-		siz := m.XXX_Size()
-		b := make([]byte, 0, siz)
-		return m.XXX_Marshal(b, false)
-	}
-	if m, ok := pb.(Marshaler); ok {
-		// If the message can marshal itself, let it do it, for compatibility.
-		// NOTE: This is not efficient.
-		return m.Marshal()
-	}
-	// in case somehow we didn't generate the wrapper
-	if pb == nil {
-		return nil, ErrNil
-	}
-	var info InternalMessageInfo
-	siz := info.Size(pb)
-	b := make([]byte, 0, siz)
-	return info.Marshal(b, pb, false)
-}
-
-// Marshal takes a protocol buffer message
-// and encodes it into the wire format, writing the result to the
-// Buffer.
-// This is an alternative entry point. It is not necessary to use
-// a Buffer for most applications.
-func (p *Buffer) Marshal(pb Message) error {
-	var err error
-	if m, ok := pb.(newMarshaler); ok {
-		siz := m.XXX_Size()
-		p.grow(siz) // make sure buf has enough capacity
-		p.buf, err = m.XXX_Marshal(p.buf, p.deterministic)
-		return err
-	}
-	if m, ok := pb.(Marshaler); ok {
-		// If the message can marshal itself, let it do it, for compatibility.
-		// NOTE: This is not efficient.
-		b, err := m.Marshal()
-		p.buf = append(p.buf, b...)
-		return err
-	}
-	// in case somehow we didn't generate the wrapper
-	if pb == nil {
-		return ErrNil
-	}
-	var info InternalMessageInfo
-	siz := info.Size(pb)
-	p.grow(siz) // make sure buf has enough capacity
-	p.buf, err = info.Marshal(p.buf, pb, p.deterministic)
-	return err
-}
-
-// grow grows the buffer's capacity, if necessary, to guarantee space for
-// another n bytes. After grow(n), at least n bytes can be written to the
-// buffer without another allocation.
-func (p *Buffer) grow(n int) {
-	need := len(p.buf) + n
-	if need <= cap(p.buf) {
-		return
-	}
-	newCap := len(p.buf) * 2
-	if newCap < need {
-		newCap = need
-	}
-	p.buf = append(make([]byte, 0, newCap), p.buf...)
-}

libnetwork/vendor/github.com/golang/protobuf/proto/table_merge.go

@@ -1,654 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2016 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
-	"fmt"
-	"reflect"
-	"strings"
-	"sync"
-	"sync/atomic"
-)
-
-// Merge merges the src message into dst.
-// This assumes that dst and src of the same type and are non-nil.
-func (a *InternalMessageInfo) Merge(dst, src Message) {
-	mi := atomicLoadMergeInfo(&a.merge)
-	if mi == nil {
-		mi = getMergeInfo(reflect.TypeOf(dst).Elem())
-		atomicStoreMergeInfo(&a.merge, mi)
-	}
-	mi.merge(toPointer(&dst), toPointer(&src))
-}
-
-type mergeInfo struct {
-	typ reflect.Type
-
-	initialized int32 // 0: only typ is valid, 1: everything is valid
-	lock        sync.Mutex
-
-	fields       []mergeFieldInfo
-	unrecognized field // Offset of XXX_unrecognized
-}
-
-type mergeFieldInfo struct {
-	field field // Offset of field, guaranteed to be valid
-
-	// isPointer reports whether the value in the field is a pointer.
-	// This is true for the following situations:
-	//	* Pointer to struct
-	//	* Pointer to basic type (proto2 only)
-	//	* Slice (first value in slice header is a pointer)
-	//	* String (first value in string header is a pointer)
-	isPointer bool
-
-	// basicWidth reports the width of the field assuming that it is directly
-	// embedded in the struct (as is the case for basic types in proto3).
-	// The possible values are:
-	// 	0: invalid
-	//	1: bool
-	//	4: int32, uint32, float32
-	//	8: int64, uint64, float64
-	basicWidth int
-
-	// Where dst and src are pointers to the types being merged.
-	merge func(dst, src pointer)
-}
-
-var (
-	mergeInfoMap  = map[reflect.Type]*mergeInfo{}
-	mergeInfoLock sync.Mutex
-)
-
-func getMergeInfo(t reflect.Type) *mergeInfo {
-	mergeInfoLock.Lock()
-	defer mergeInfoLock.Unlock()
-	mi := mergeInfoMap[t]
-	if mi == nil {
-		mi = &mergeInfo{typ: t}
-		mergeInfoMap[t] = mi
-	}
-	return mi
-}
-
-// merge merges src into dst assuming they are both of type *mi.typ.
-func (mi *mergeInfo) merge(dst, src pointer) {
-	if dst.isNil() {
-		panic("proto: nil destination")
-	}
-	if src.isNil() {
-		return // Nothing to do.
-	}
-
-	if atomic.LoadInt32(&mi.initialized) == 0 {
-		mi.computeMergeInfo()
-	}
-
-	for _, fi := range mi.fields {
-		sfp := src.offset(fi.field)
-
-		// As an optimization, we can avoid the merge function call cost
-		// if we know for sure that the source will have no effect
-		// by checking if it is the zero value.
-		if unsafeAllowed {
-			if fi.isPointer && sfp.getPointer().isNil() { // Could be slice or string
-				continue
-			}
-			if fi.basicWidth > 0 {
-				switch {
-				case fi.basicWidth == 1 && !*sfp.toBool():
-					continue
-				case fi.basicWidth == 4 && *sfp.toUint32() == 0:
-					continue
-				case fi.basicWidth == 8 && *sfp.toUint64() == 0:
-					continue
-				}
-			}
-		}
-
-		dfp := dst.offset(fi.field)
-		fi.merge(dfp, sfp)
-	}
-
-	// TODO: Make this faster?
-	out := dst.asPointerTo(mi.typ).Elem()
-	in := src.asPointerTo(mi.typ).Elem()
-	if emIn, err := extendable(in.Addr().Interface()); err == nil {
-		emOut, _ := extendable(out.Addr().Interface())
-		mIn, muIn := emIn.extensionsRead()
-		if mIn != nil {
-			mOut := emOut.extensionsWrite()
-			muIn.Lock()
-			mergeExtension(mOut, mIn)
-			muIn.Unlock()
-		}
-	}
-
-	if mi.unrecognized.IsValid() {
-		if b := *src.offset(mi.unrecognized).toBytes(); len(b) > 0 {
-			*dst.offset(mi.unrecognized).toBytes() = append([]byte(nil), b...)
-		}
-	}
-}
-
-func (mi *mergeInfo) computeMergeInfo() {
-	mi.lock.Lock()
-	defer mi.lock.Unlock()
-	if mi.initialized != 0 {
-		return
-	}
-	t := mi.typ
-	n := t.NumField()
-
-	props := GetProperties(t)
-	for i := 0; i < n; i++ {
-		f := t.Field(i)
-		if strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-
-		mfi := mergeFieldInfo{field: toField(&f)}
-		tf := f.Type
-
-		// As an optimization, we can avoid the merge function call cost
-		// if we know for sure that the source will have no effect
-		// by checking if it is the zero value.
-		if unsafeAllowed {
-			switch tf.Kind() {
-			case reflect.Ptr, reflect.Slice, reflect.String:
-				// As a special case, we assume slices and strings are pointers
-				// since we know that the first field in the SliceSlice or
-				// StringHeader is a data pointer.
-				mfi.isPointer = true
-			case reflect.Bool:
-				mfi.basicWidth = 1
-			case reflect.Int32, reflect.Uint32, reflect.Float32:
-				mfi.basicWidth = 4
-			case reflect.Int64, reflect.Uint64, reflect.Float64:
-				mfi.basicWidth = 8
-			}
-		}
-
-		// Unwrap tf to get at its most basic type.
-		var isPointer, isSlice bool
-		if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 {
-			isSlice = true
-			tf = tf.Elem()
-		}
-		if tf.Kind() == reflect.Ptr {
-			isPointer = true
-			tf = tf.Elem()
-		}
-		if isPointer && isSlice && tf.Kind() != reflect.Struct {
-			panic("both pointer and slice for basic type in " + tf.Name())
-		}
-
-		switch tf.Kind() {
-		case reflect.Int32:
-			switch {
-			case isSlice: // E.g., []int32
-				mfi.merge = func(dst, src pointer) {
-					// NOTE: toInt32Slice is not defined (see pointer_reflect.go).
-					/*
-						sfsp := src.toInt32Slice()
-						if *sfsp != nil {
-							dfsp := dst.toInt32Slice()
-							*dfsp = append(*dfsp, *sfsp...)
-							if *dfsp == nil {
-								*dfsp = []int64{}
-							}
-						}
-					*/
-					sfs := src.getInt32Slice()
-					if sfs != nil {
-						dfs := dst.getInt32Slice()
-						dfs = append(dfs, sfs...)
-						if dfs == nil {
-							dfs = []int32{}
-						}
-						dst.setInt32Slice(dfs)
-					}
-				}
-			case isPointer: // E.g., *int32
-				mfi.merge = func(dst, src pointer) {
-					// NOTE: toInt32Ptr is not defined (see pointer_reflect.go).
-					/*
-						sfpp := src.toInt32Ptr()
-						if *sfpp != nil {
-							dfpp := dst.toInt32Ptr()
-							if *dfpp == nil {
-								*dfpp = Int32(**sfpp)
-							} else {
-								**dfpp = **sfpp
-							}
-						}
-					*/
-					sfp := src.getInt32Ptr()
-					if sfp != nil {
-						dfp := dst.getInt32Ptr()
-						if dfp == nil {
-							dst.setInt32Ptr(*sfp)
-						} else {
-							*dfp = *sfp
-						}
-					}
-				}
-			default: // E.g., int32
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toInt32(); v != 0 {
-						*dst.toInt32() = v
-					}
-				}
-			}
-		case reflect.Int64:
-			switch {
-			case isSlice: // E.g., []int64
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toInt64Slice()
-					if *sfsp != nil {
-						dfsp := dst.toInt64Slice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []int64{}
-						}
-					}
-				}
-			case isPointer: // E.g., *int64
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toInt64Ptr()
-					if *sfpp != nil {
-						dfpp := dst.toInt64Ptr()
-						if *dfpp == nil {
-							*dfpp = Int64(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., int64
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toInt64(); v != 0 {
-						*dst.toInt64() = v
-					}
-				}
-			}
-		case reflect.Uint32:
-			switch {
-			case isSlice: // E.g., []uint32
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toUint32Slice()
-					if *sfsp != nil {
-						dfsp := dst.toUint32Slice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []uint32{}
-						}
-					}
-				}
-			case isPointer: // E.g., *uint32
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toUint32Ptr()
-					if *sfpp != nil {
-						dfpp := dst.toUint32Ptr()
-						if *dfpp == nil {
-							*dfpp = Uint32(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., uint32
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toUint32(); v != 0 {
-						*dst.toUint32() = v
-					}
-				}
-			}
-		case reflect.Uint64:
-			switch {
-			case isSlice: // E.g., []uint64
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toUint64Slice()
-					if *sfsp != nil {
-						dfsp := dst.toUint64Slice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []uint64{}
-						}
-					}
-				}
-			case isPointer: // E.g., *uint64
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toUint64Ptr()
-					if *sfpp != nil {
-						dfpp := dst.toUint64Ptr()
-						if *dfpp == nil {
-							*dfpp = Uint64(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., uint64
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toUint64(); v != 0 {
-						*dst.toUint64() = v
-					}
-				}
-			}
-		case reflect.Float32:
-			switch {
-			case isSlice: // E.g., []float32
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toFloat32Slice()
-					if *sfsp != nil {
-						dfsp := dst.toFloat32Slice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []float32{}
-						}
-					}
-				}
-			case isPointer: // E.g., *float32
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toFloat32Ptr()
-					if *sfpp != nil {
-						dfpp := dst.toFloat32Ptr()
-						if *dfpp == nil {
-							*dfpp = Float32(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., float32
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toFloat32(); v != 0 {
-						*dst.toFloat32() = v
-					}
-				}
-			}
-		case reflect.Float64:
-			switch {
-			case isSlice: // E.g., []float64
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toFloat64Slice()
-					if *sfsp != nil {
-						dfsp := dst.toFloat64Slice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []float64{}
-						}
-					}
-				}
-			case isPointer: // E.g., *float64
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toFloat64Ptr()
-					if *sfpp != nil {
-						dfpp := dst.toFloat64Ptr()
-						if *dfpp == nil {
-							*dfpp = Float64(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., float64
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toFloat64(); v != 0 {
-						*dst.toFloat64() = v
-					}
-				}
-			}
-		case reflect.Bool:
-			switch {
-			case isSlice: // E.g., []bool
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toBoolSlice()
-					if *sfsp != nil {
-						dfsp := dst.toBoolSlice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []bool{}
-						}
-					}
-				}
-			case isPointer: // E.g., *bool
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toBoolPtr()
-					if *sfpp != nil {
-						dfpp := dst.toBoolPtr()
-						if *dfpp == nil {
-							*dfpp = Bool(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., bool
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toBool(); v {
-						*dst.toBool() = v
-					}
-				}
-			}
-		case reflect.String:
-			switch {
-			case isSlice: // E.g., []string
-				mfi.merge = func(dst, src pointer) {
-					sfsp := src.toStringSlice()
-					if *sfsp != nil {
-						dfsp := dst.toStringSlice()
-						*dfsp = append(*dfsp, *sfsp...)
-						if *dfsp == nil {
-							*dfsp = []string{}
-						}
-					}
-				}
-			case isPointer: // E.g., *string
-				mfi.merge = func(dst, src pointer) {
-					sfpp := src.toStringPtr()
-					if *sfpp != nil {
-						dfpp := dst.toStringPtr()
-						if *dfpp == nil {
-							*dfpp = String(**sfpp)
-						} else {
-							**dfpp = **sfpp
-						}
-					}
-				}
-			default: // E.g., string
-				mfi.merge = func(dst, src pointer) {
-					if v := *src.toString(); v != "" {
-						*dst.toString() = v
-					}
-				}
-			}
-		case reflect.Slice:
-			isProto3 := props.Prop[i].proto3
-			switch {
-			case isPointer:
-				panic("bad pointer in byte slice case in " + tf.Name())
-			case tf.Elem().Kind() != reflect.Uint8:
-				panic("bad element kind in byte slice case in " + tf.Name())
-			case isSlice: // E.g., [][]byte
-				mfi.merge = func(dst, src pointer) {
-					sbsp := src.toBytesSlice()
-					if *sbsp != nil {
-						dbsp := dst.toBytesSlice()
-						for _, sb := range *sbsp {
-							if sb == nil {
-								*dbsp = append(*dbsp, nil)
-							} else {
-								*dbsp = append(*dbsp, append([]byte{}, sb...))
-							}
-						}
-						if *dbsp == nil {
-							*dbsp = [][]byte{}
-						}
-					}
-				}
-			default: // E.g., []byte
-				mfi.merge = func(dst, src pointer) {
-					sbp := src.toBytes()
-					if *sbp != nil {
-						dbp := dst.toBytes()
-						if !isProto3 || len(*sbp) > 0 {
-							*dbp = append([]byte{}, *sbp...)
-						}
-					}
-				}
-			}
-		case reflect.Struct:
-			switch {
-			case !isPointer:
-				panic(fmt.Sprintf("message field %s without pointer", tf))
-			case isSlice: // E.g., []*pb.T
-				mi := getMergeInfo(tf)
-				mfi.merge = func(dst, src pointer) {
-					sps := src.getPointerSlice()
-					if sps != nil {
-						dps := dst.getPointerSlice()
-						for _, sp := range sps {
-							var dp pointer
-							if !sp.isNil() {
-								dp = valToPointer(reflect.New(tf))
-								mi.merge(dp, sp)
-							}
-							dps = append(dps, dp)
-						}
-						if dps == nil {
-							dps = []pointer{}
-						}
-						dst.setPointerSlice(dps)
-					}
-				}
-			default: // E.g., *pb.T
-				mi := getMergeInfo(tf)
-				mfi.merge = func(dst, src pointer) {
-					sp := src.getPointer()
-					if !sp.isNil() {
-						dp := dst.getPointer()
-						if dp.isNil() {
-							dp = valToPointer(reflect.New(tf))
-							dst.setPointer(dp)
-						}
-						mi.merge(dp, sp)
-					}
-				}
-			}
-		case reflect.Map:
-			switch {
-			case isPointer || isSlice:
-				panic("bad pointer or slice in map case in " + tf.Name())
-			default: // E.g., map[K]V
-				mfi.merge = func(dst, src pointer) {
-					sm := src.asPointerTo(tf).Elem()
-					if sm.Len() == 0 {
-						return
-					}
-					dm := dst.asPointerTo(tf).Elem()
-					if dm.IsNil() {
-						dm.Set(reflect.MakeMap(tf))
-					}
-
-					switch tf.Elem().Kind() {
-					case reflect.Ptr: // Proto struct (e.g., *T)
-						for _, key := range sm.MapKeys() {
-							val := sm.MapIndex(key)
-							val = reflect.ValueOf(Clone(val.Interface().(Message)))
-							dm.SetMapIndex(key, val)
-						}
-					case reflect.Slice: // E.g. Bytes type (e.g., []byte)
-						for _, key := range sm.MapKeys() {
-							val := sm.MapIndex(key)
-							val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
-							dm.SetMapIndex(key, val)
-						}
-					default: // Basic type (e.g., string)
-						for _, key := range sm.MapKeys() {
-							val := sm.MapIndex(key)
-							dm.SetMapIndex(key, val)
-						}
-					}
-				}
-			}
-		case reflect.Interface:
-			// Must be oneof field.
-			switch {
-			case isPointer || isSlice:
-				panic("bad pointer or slice in interface case in " + tf.Name())
-			default: // E.g., interface{}
-				// TODO: Make this faster?
-				mfi.merge = func(dst, src pointer) {
-					su := src.asPointerTo(tf).Elem()
-					if !su.IsNil() {
-						du := dst.asPointerTo(tf).Elem()
-						typ := su.Elem().Type()
-						if du.IsNil() || du.Elem().Type() != typ {
-							du.Set(reflect.New(typ.Elem())) // Initialize interface if empty
-						}
-						sv := su.Elem().Elem().Field(0)
-						if sv.Kind() == reflect.Ptr && sv.IsNil() {
-							return
-						}
-						dv := du.Elem().Elem().Field(0)
-						if dv.Kind() == reflect.Ptr && dv.IsNil() {
-							dv.Set(reflect.New(sv.Type().Elem())) // Initialize proto message if empty
-						}
-						switch sv.Type().Kind() {
-						case reflect.Ptr: // Proto struct (e.g., *T)
-							Merge(dv.Interface().(Message), sv.Interface().(Message))
-						case reflect.Slice: // E.g. Bytes type (e.g., []byte)
-							dv.Set(reflect.ValueOf(append([]byte{}, sv.Bytes()...)))
-						default: // Basic type (e.g., string)
-							dv.Set(sv)
-						}
-					}
-				}
-			}
-		default:
-			panic(fmt.Sprintf("merger not found for type:%s", tf))
-		}
-		mi.fields = append(mi.fields, mfi)
-	}
-
-	mi.unrecognized = invalidField
-	if f, ok := t.FieldByName("XXX_unrecognized"); ok {
-		if f.Type != reflect.TypeOf([]byte{}) {
-			panic("expected XXX_unrecognized to be of type []byte")
-		}
-		mi.unrecognized = toField(&f)
-	}
-
-	atomic.StoreInt32(&mi.initialized, 1)
-}

libnetwork/vendor/github.com/golang/protobuf/proto/table_unmarshal.go

@@ -1,1967 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2016 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"math"
-	"reflect"
-	"strconv"
-	"strings"
-	"sync"
-	"sync/atomic"
-	"unicode/utf8"
-)
-
-// Unmarshal is the entry point from the generated .pb.go files.
-// This function is not intended to be used by non-generated code.
-// This function is not subject to any compatibility guarantee.
-// msg contains a pointer to a protocol buffer struct.
-// b is the data to be unmarshaled into the protocol buffer.
-// a is a pointer to a place to store cached unmarshal information.
-func (a *InternalMessageInfo) Unmarshal(msg Message, b []byte) error {
-	// Load the unmarshal information for this message type.
-	// The atomic load ensures memory consistency.
-	u := atomicLoadUnmarshalInfo(&a.unmarshal)
-	if u == nil {
-		// Slow path: find unmarshal info for msg, update a with it.
-		u = getUnmarshalInfo(reflect.TypeOf(msg).Elem())
-		atomicStoreUnmarshalInfo(&a.unmarshal, u)
-	}
-	// Then do the unmarshaling.
-	err := u.unmarshal(toPointer(&msg), b)
-	return err
-}
-
-type unmarshalInfo struct {
-	typ reflect.Type // type of the protobuf struct
-
-	// 0 = only typ field is initialized
-	// 1 = completely initialized
-	initialized     int32
-	lock            sync.Mutex                    // prevents double initialization
-	dense           []unmarshalFieldInfo          // fields indexed by tag #
-	sparse          map[uint64]unmarshalFieldInfo // fields indexed by tag #
-	reqFields       []string                      // names of required fields
-	reqMask         uint64                        // 1<<len(reqFields)-1
-	unrecognized    field                         // offset of []byte to put unrecognized data (or invalidField if we should throw it away)
-	extensions      field                         // offset of extensions field (of type proto.XXX_InternalExtensions), or invalidField if it does not exist
-	oldExtensions   field                         // offset of old-form extensions field (of type map[int]Extension)
-	extensionRanges []ExtensionRange              // if non-nil, implies extensions field is valid
-	isMessageSet    bool                          // if true, implies extensions field is valid
-}
-
-// An unmarshaler takes a stream of bytes and a pointer to a field of a message.
-// It decodes the field, stores it at f, and returns the unused bytes.
-// w is the wire encoding.
-// b is the data after the tag and wire encoding have been read.
-type unmarshaler func(b []byte, f pointer, w int) ([]byte, error)
-
-type unmarshalFieldInfo struct {
-	// location of the field in the proto message structure.
-	field field
-
-	// function to unmarshal the data for the field.
-	unmarshal unmarshaler
-
-	// if a required field, contains a single set bit at this field's index in the required field list.
-	reqMask uint64
-}
-
-var (
-	unmarshalInfoMap  = map[reflect.Type]*unmarshalInfo{}
-	unmarshalInfoLock sync.Mutex
-)
-
-// getUnmarshalInfo returns the data structure which can be
-// subsequently used to unmarshal a message of the given type.
-// t is the type of the message (note: not pointer to message).
-func getUnmarshalInfo(t reflect.Type) *unmarshalInfo {
-	// It would be correct to return a new unmarshalInfo
-	// unconditionally. We would end up allocating one
-	// per occurrence of that type as a message or submessage.
-	// We use a cache here just to reduce memory usage.
-	unmarshalInfoLock.Lock()
-	defer unmarshalInfoLock.Unlock()
-	u := unmarshalInfoMap[t]
-	if u == nil {
-		u = &unmarshalInfo{typ: t}
-		// Note: we just set the type here. The rest of the fields
-		// will be initialized on first use.
-		unmarshalInfoMap[t] = u
-	}
-	return u
-}
-
-// unmarshal does the main work of unmarshaling a message.
-// u provides type information used to unmarshal the message.
-// m is a pointer to a protocol buffer message.
-// b is a byte stream to unmarshal into m.
-// This is top routine used when recursively unmarshaling submessages.
-func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error {
-	if atomic.LoadInt32(&u.initialized) == 0 {
-		u.computeUnmarshalInfo()
-	}
-	if u.isMessageSet {
-		return UnmarshalMessageSet(b, m.offset(u.extensions).toExtensions())
-	}
-	var reqMask uint64            // bitmask of required fields we've seen.
-	var rnse *RequiredNotSetError // an instance of a RequiredNotSetError returned by a submessage.
-	for len(b) > 0 {
-		// Read tag and wire type.
-		// Special case 1 and 2 byte varints.
-		var x uint64
-		if b[0] < 128 {
-			x = uint64(b[0])
-			b = b[1:]
-		} else if len(b) >= 2 && b[1] < 128 {
-			x = uint64(b[0]&0x7f) + uint64(b[1])<<7
-			b = b[2:]
-		} else {
-			var n int
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-		}
-		tag := x >> 3
-		wire := int(x) & 7
-
-		// Dispatch on the tag to one of the unmarshal* functions below.
-		var f unmarshalFieldInfo
-		if tag < uint64(len(u.dense)) {
-			f = u.dense[tag]
-		} else {
-			f = u.sparse[tag]
-		}
-		if fn := f.unmarshal; fn != nil {
-			var err error
-			b, err = fn(b, m.offset(f.field), wire)
-			if err == nil {
-				reqMask |= f.reqMask
-				continue
-			}
-			if r, ok := err.(*RequiredNotSetError); ok {
-				// Remember this error, but keep parsing. We need to produce
-				// a full parse even if a required field is missing.
-				rnse = r
-				reqMask |= f.reqMask
-				continue
-			}
-			if err != errInternalBadWireType {
-				return err
-			}
-			// Fragments with bad wire type are treated as unknown fields.
-		}
-
-		// Unknown tag.
-		if !u.unrecognized.IsValid() {
-			// Don't keep unrecognized data; just skip it.
-			var err error
-			b, err = skipField(b, wire)
-			if err != nil {
-				return err
-			}
-			continue
-		}
-		// Keep unrecognized data around.
-		// maybe in extensions, maybe in the unrecognized field.
-		z := m.offset(u.unrecognized).toBytes()
-		var emap map[int32]Extension
-		var e Extension
-		for _, r := range u.extensionRanges {
-			if uint64(r.Start) <= tag && tag <= uint64(r.End) {
-				if u.extensions.IsValid() {
-					mp := m.offset(u.extensions).toExtensions()
-					emap = mp.extensionsWrite()
-					e = emap[int32(tag)]
-					z = &e.enc
-					break
-				}
-				if u.oldExtensions.IsValid() {
-					p := m.offset(u.oldExtensions).toOldExtensions()
-					emap = *p
-					if emap == nil {
-						emap = map[int32]Extension{}
-						*p = emap
-					}
-					e = emap[int32(tag)]
-					z = &e.enc
-					break
-				}
-				panic("no extensions field available")
-			}
-		}
-
-		// Use wire type to skip data.
-		var err error
-		b0 := b
-		b, err = skipField(b, wire)
-		if err != nil {
-			return err
-		}
-		*z = encodeVarint(*z, tag<<3|uint64(wire))
-		*z = append(*z, b0[:len(b0)-len(b)]...)
-
-		if emap != nil {
-			emap[int32(tag)] = e
-		}
-	}
-	if rnse != nil {
-		// A required field of a submessage/group is missing. Return that error.
-		return rnse
-	}
-	if reqMask != u.reqMask {
-		// A required field of this message is missing.
-		for _, n := range u.reqFields {
-			if reqMask&1 == 0 {
-				return &RequiredNotSetError{n}
-			}
-			reqMask >>= 1
-		}
-	}
-	return nil
-}
-
-// computeUnmarshalInfo fills in u with information for use
-// in unmarshaling protocol buffers of type u.typ.
-func (u *unmarshalInfo) computeUnmarshalInfo() {
-	u.lock.Lock()
-	defer u.lock.Unlock()
-	if u.initialized != 0 {
-		return
-	}
-	t := u.typ
-	n := t.NumField()
-
-	// Set up the "not found" value for the unrecognized byte buffer.
-	// This is the default for proto3.
-	u.unrecognized = invalidField
-	u.extensions = invalidField
-	u.oldExtensions = invalidField
-
-	// List of the generated type and offset for each oneof field.
-	type oneofField struct {
-		ityp  reflect.Type // interface type of oneof field
-		field field        // offset in containing message
-	}
-	var oneofFields []oneofField
-
-	for i := 0; i < n; i++ {
-		f := t.Field(i)
-		if f.Name == "XXX_unrecognized" {
-			// The byte slice used to hold unrecognized input is special.
-			if f.Type != reflect.TypeOf(([]byte)(nil)) {
-				panic("bad type for XXX_unrecognized field: " + f.Type.Name())
-			}
-			u.unrecognized = toField(&f)
-			continue
-		}
-		if f.Name == "XXX_InternalExtensions" {
-			// Ditto here.
-			if f.Type != reflect.TypeOf(XXX_InternalExtensions{}) {
-				panic("bad type for XXX_InternalExtensions field: " + f.Type.Name())
-			}
-			u.extensions = toField(&f)
-			if f.Tag.Get("protobuf_messageset") == "1" {
-				u.isMessageSet = true
-			}
-			continue
-		}
-		if f.Name == "XXX_extensions" {
-			// An older form of the extensions field.
-			if f.Type != reflect.TypeOf((map[int32]Extension)(nil)) {
-				panic("bad type for XXX_extensions field: " + f.Type.Name())
-			}
-			u.oldExtensions = toField(&f)
-			continue
-		}
-		if f.Name == "XXX_NoUnkeyedLiteral" || f.Name == "XXX_sizecache" {
-			continue
-		}
-
-		oneof := f.Tag.Get("protobuf_oneof")
-		if oneof != "" {
-			oneofFields = append(oneofFields, oneofField{f.Type, toField(&f)})
-			// The rest of oneof processing happens below.
-			continue
-		}
-
-		tags := f.Tag.Get("protobuf")
-		tagArray := strings.Split(tags, ",")
-		if len(tagArray) < 2 {
-			panic("protobuf tag not enough fields in " + t.Name() + "." + f.Name + ": " + tags)
-		}
-		tag, err := strconv.Atoi(tagArray[1])
-		if err != nil {
-			panic("protobuf tag field not an integer: " + tagArray[1])
-		}
-
-		name := ""
-		for _, tag := range tagArray[3:] {
-			if strings.HasPrefix(tag, "name=") {
-				name = tag[5:]
-			}
-		}
-
-		// Extract unmarshaling function from the field (its type and tags).
-		unmarshal := fieldUnmarshaler(&f)
-
-		// Required field?
-		var reqMask uint64
-		if tagArray[2] == "req" {
-			bit := len(u.reqFields)
-			u.reqFields = append(u.reqFields, name)
-			reqMask = uint64(1) << uint(bit)
-			// TODO: if we have more than 64 required fields, we end up
-			// not verifying that all required fields are present.
-			// Fix this, perhaps using a count of required fields?
-		}
-
-		// Store the info in the correct slot in the message.
-		u.setTag(tag, toField(&f), unmarshal, reqMask)
-	}
-
-	// Find any types associated with oneof fields.
-	// TODO: XXX_OneofFuncs returns more info than we need.  Get rid of some of it?
-	fn := reflect.Zero(reflect.PtrTo(t)).MethodByName("XXX_OneofFuncs")
-	if fn.IsValid() {
-		res := fn.Call(nil)[3] // last return value from XXX_OneofFuncs: []interface{}
-		for i := res.Len() - 1; i >= 0; i-- {
-			v := res.Index(i)                             // interface{}
-			tptr := reflect.ValueOf(v.Interface()).Type() // *Msg_X
-			typ := tptr.Elem()                            // Msg_X
-
-			f := typ.Field(0) // oneof implementers have one field
-			baseUnmarshal := fieldUnmarshaler(&f)
-			tagstr := strings.Split(f.Tag.Get("protobuf"), ",")[1]
-			tag, err := strconv.Atoi(tagstr)
-			if err != nil {
-				panic("protobuf tag field not an integer: " + tagstr)
-			}
-
-			// Find the oneof field that this struct implements.
-			// Might take O(n^2) to process all of the oneofs, but who cares.
-			for _, of := range oneofFields {
-				if tptr.Implements(of.ityp) {
-					// We have found the corresponding interface for this struct.
-					// That lets us know where this struct should be stored
-					// when we encounter it during unmarshaling.
-					unmarshal := makeUnmarshalOneof(typ, of.ityp, baseUnmarshal)
-					u.setTag(tag, of.field, unmarshal, 0)
-				}
-			}
-		}
-	}
-
-	// Get extension ranges, if any.
-	fn = reflect.Zero(reflect.PtrTo(t)).MethodByName("ExtensionRangeArray")
-	if fn.IsValid() {
-		if !u.extensions.IsValid() && !u.oldExtensions.IsValid() {
-			panic("a message with extensions, but no extensions field in " + t.Name())
-		}
-		u.extensionRanges = fn.Call(nil)[0].Interface().([]ExtensionRange)
-	}
-
-	// Explicitly disallow tag 0. This will ensure we flag an error
-	// when decoding a buffer of all zeros. Without this code, we
-	// would decode and skip an all-zero buffer of even length.
-	// [0 0] is [tag=0/wiretype=varint varint-encoded-0].
-	u.setTag(0, zeroField, func(b []byte, f pointer, w int) ([]byte, error) {
-		return nil, fmt.Errorf("proto: %s: illegal tag 0 (wire type %d)", t, w)
-	}, 0)
-
-	// Set mask for required field check.
-	u.reqMask = uint64(1)<<uint(len(u.reqFields)) - 1
-
-	atomic.StoreInt32(&u.initialized, 1)
-}
-
-// setTag stores the unmarshal information for the given tag.
-// tag = tag # for field
-// field/unmarshal = unmarshal info for that field.
-// reqMask = if required, bitmask for field position in required field list. 0 otherwise.
-func (u *unmarshalInfo) setTag(tag int, field field, unmarshal unmarshaler, reqMask uint64) {
-	i := unmarshalFieldInfo{field: field, unmarshal: unmarshal, reqMask: reqMask}
-	n := u.typ.NumField()
-	if tag >= 0 && (tag < 16 || tag < 2*n) { // TODO: what are the right numbers here?
-		for len(u.dense) <= tag {
-			u.dense = append(u.dense, unmarshalFieldInfo{})
-		}
-		u.dense[tag] = i
-		return
-	}
-	if u.sparse == nil {
-		u.sparse = map[uint64]unmarshalFieldInfo{}
-	}
-	u.sparse[uint64(tag)] = i
-}
-
-// fieldUnmarshaler returns an unmarshaler for the given field.
-func fieldUnmarshaler(f *reflect.StructField) unmarshaler {
-	if f.Type.Kind() == reflect.Map {
-		return makeUnmarshalMap(f)
-	}
-	return typeUnmarshaler(f.Type, f.Tag.Get("protobuf"))
-}
-
-// typeUnmarshaler returns an unmarshaler for the given field type / field tag pair.
-func typeUnmarshaler(t reflect.Type, tags string) unmarshaler {
-	tagArray := strings.Split(tags, ",")
-	encoding := tagArray[0]
-	name := "unknown"
-	for _, tag := range tagArray[3:] {
-		if strings.HasPrefix(tag, "name=") {
-			name = tag[5:]
-		}
-	}
-
-	// Figure out packaging (pointer, slice, or both)
-	slice := false
-	pointer := false
-	if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 {
-		slice = true
-		t = t.Elem()
-	}
-	if t.Kind() == reflect.Ptr {
-		pointer = true
-		t = t.Elem()
-	}
-
-	// We'll never have both pointer and slice for basic types.
-	if pointer && slice && t.Kind() != reflect.Struct {
-		panic("both pointer and slice for basic type in " + t.Name())
-	}
-
-	switch t.Kind() {
-	case reflect.Bool:
-		if pointer {
-			return unmarshalBoolPtr
-		}
-		if slice {
-			return unmarshalBoolSlice
-		}
-		return unmarshalBoolValue
-	case reflect.Int32:
-		switch encoding {
-		case "fixed32":
-			if pointer {
-				return unmarshalFixedS32Ptr
-			}
-			if slice {
-				return unmarshalFixedS32Slice
-			}
-			return unmarshalFixedS32Value
-		case "varint":
-			// this could be int32 or enum
-			if pointer {
-				return unmarshalInt32Ptr
-			}
-			if slice {
-				return unmarshalInt32Slice
-			}
-			return unmarshalInt32Value
-		case "zigzag32":
-			if pointer {
-				return unmarshalSint32Ptr
-			}
-			if slice {
-				return unmarshalSint32Slice
-			}
-			return unmarshalSint32Value
-		}
-	case reflect.Int64:
-		switch encoding {
-		case "fixed64":
-			if pointer {
-				return unmarshalFixedS64Ptr
-			}
-			if slice {
-				return unmarshalFixedS64Slice
-			}
-			return unmarshalFixedS64Value
-		case "varint":
-			if pointer {
-				return unmarshalInt64Ptr
-			}
-			if slice {
-				return unmarshalInt64Slice
-			}
-			return unmarshalInt64Value
-		case "zigzag64":
-			if pointer {
-				return unmarshalSint64Ptr
-			}
-			if slice {
-				return unmarshalSint64Slice
-			}
-			return unmarshalSint64Value
-		}
-	case reflect.Uint32:
-		switch encoding {
-		case "fixed32":
-			if pointer {
-				return unmarshalFixed32Ptr
-			}
-			if slice {
-				return unmarshalFixed32Slice
-			}
-			return unmarshalFixed32Value
-		case "varint":
-			if pointer {
-				return unmarshalUint32Ptr
-			}
-			if slice {
-				return unmarshalUint32Slice
-			}
-			return unmarshalUint32Value
-		}
-	case reflect.Uint64:
-		switch encoding {
-		case "fixed64":
-			if pointer {
-				return unmarshalFixed64Ptr
-			}
-			if slice {
-				return unmarshalFixed64Slice
-			}
-			return unmarshalFixed64Value
-		case "varint":
-			if pointer {
-				return unmarshalUint64Ptr
-			}
-			if slice {
-				return unmarshalUint64Slice
-			}
-			return unmarshalUint64Value
-		}
-	case reflect.Float32:
-		if pointer {
-			return unmarshalFloat32Ptr
-		}
-		if slice {
-			return unmarshalFloat32Slice
-		}
-		return unmarshalFloat32Value
-	case reflect.Float64:
-		if pointer {
-			return unmarshalFloat64Ptr
-		}
-		if slice {
-			return unmarshalFloat64Slice
-		}
-		return unmarshalFloat64Value
-	case reflect.Map:
-		panic("map type in typeUnmarshaler in " + t.Name())
-	case reflect.Slice:
-		if pointer {
-			panic("bad pointer in slice case in " + t.Name())
-		}
-		if slice {
-			return unmarshalBytesSlice
-		}
-		return unmarshalBytesValue
-	case reflect.String:
-		if pointer {
-			return unmarshalStringPtr
-		}
-		if slice {
-			return unmarshalStringSlice
-		}
-		return unmarshalStringValue
-	case reflect.Struct:
-		// message or group field
-		if !pointer {
-			panic(fmt.Sprintf("message/group field %s:%s without pointer", t, encoding))
-		}
-		switch encoding {
-		case "bytes":
-			if slice {
-				return makeUnmarshalMessageSlicePtr(getUnmarshalInfo(t), name)
-			}
-			return makeUnmarshalMessagePtr(getUnmarshalInfo(t), name)
-		case "group":
-			if slice {
-				return makeUnmarshalGroupSlicePtr(getUnmarshalInfo(t), name)
-			}
-			return makeUnmarshalGroupPtr(getUnmarshalInfo(t), name)
-		}
-	}
-	panic(fmt.Sprintf("unmarshaler not found type:%s encoding:%s", t, encoding))
-}
-
-// Below are all the unmarshalers for individual fields of various types.
-
-func unmarshalInt64Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int64(x)
-	*f.toInt64() = v
-	return b, nil
-}
-
-func unmarshalInt64Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int64(x)
-	*f.toInt64Ptr() = &v
-	return b, nil
-}
-
-func unmarshalInt64Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-			v := int64(x)
-			s := f.toInt64Slice()
-			*s = append(*s, v)
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int64(x)
-	s := f.toInt64Slice()
-	*s = append(*s, v)
-	return b, nil
-}
-
-func unmarshalSint64Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int64(x>>1) ^ int64(x)<<63>>63
-	*f.toInt64() = v
-	return b, nil
-}
-
-func unmarshalSint64Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int64(x>>1) ^ int64(x)<<63>>63
-	*f.toInt64Ptr() = &v
-	return b, nil
-}
-
-func unmarshalSint64Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-			v := int64(x>>1) ^ int64(x)<<63>>63
-			s := f.toInt64Slice()
-			*s = append(*s, v)
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int64(x>>1) ^ int64(x)<<63>>63
-	s := f.toInt64Slice()
-	*s = append(*s, v)
-	return b, nil
-}
-
-func unmarshalUint64Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := uint64(x)
-	*f.toUint64() = v
-	return b, nil
-}
-
-func unmarshalUint64Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := uint64(x)
-	*f.toUint64Ptr() = &v
-	return b, nil
-}
-
-func unmarshalUint64Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-			v := uint64(x)
-			s := f.toUint64Slice()
-			*s = append(*s, v)
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := uint64(x)
-	s := f.toUint64Slice()
-	*s = append(*s, v)
-	return b, nil
-}
-
-func unmarshalInt32Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int32(x)
-	*f.toInt32() = v
-	return b, nil
-}
-
-func unmarshalInt32Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int32(x)
-	f.setInt32Ptr(v)
-	return b, nil
-}
-
-func unmarshalInt32Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-			v := int32(x)
-			f.appendInt32Slice(v)
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int32(x)
-	f.appendInt32Slice(v)
-	return b, nil
-}
-
-func unmarshalSint32Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int32(x>>1) ^ int32(x)<<31>>31
-	*f.toInt32() = v
-	return b, nil
-}
-
-func unmarshalSint32Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int32(x>>1) ^ int32(x)<<31>>31
-	f.setInt32Ptr(v)
-	return b, nil
-}
-
-func unmarshalSint32Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-			v := int32(x>>1) ^ int32(x)<<31>>31
-			f.appendInt32Slice(v)
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := int32(x>>1) ^ int32(x)<<31>>31
-	f.appendInt32Slice(v)
-	return b, nil
-}
-
-func unmarshalUint32Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := uint32(x)
-	*f.toUint32() = v
-	return b, nil
-}
-
-func unmarshalUint32Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := uint32(x)
-	*f.toUint32Ptr() = &v
-	return b, nil
-}
-
-func unmarshalUint32Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			b = b[n:]
-			v := uint32(x)
-			s := f.toUint32Slice()
-			*s = append(*s, v)
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	v := uint32(x)
-	s := f.toUint32Slice()
-	*s = append(*s, v)
-	return b, nil
-}
-
-func unmarshalFixed64Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
-	*f.toUint64() = v
-	return b[8:], nil
-}
-
-func unmarshalFixed64Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
-	*f.toUint64Ptr() = &v
-	return b[8:], nil
-}
-
-func unmarshalFixed64Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			if len(b) < 8 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
-			s := f.toUint64Slice()
-			*s = append(*s, v)
-			b = b[8:]
-		}
-		return res, nil
-	}
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
-	s := f.toUint64Slice()
-	*s = append(*s, v)
-	return b[8:], nil
-}
-
-func unmarshalFixedS64Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
-	*f.toInt64() = v
-	return b[8:], nil
-}
-
-func unmarshalFixedS64Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
-	*f.toInt64Ptr() = &v
-	return b[8:], nil
-}
-
-func unmarshalFixedS64Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			if len(b) < 8 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
-			s := f.toInt64Slice()
-			*s = append(*s, v)
-			b = b[8:]
-		}
-		return res, nil
-	}
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
-	s := f.toInt64Slice()
-	*s = append(*s, v)
-	return b[8:], nil
-}
-
-func unmarshalFixed32Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
-	*f.toUint32() = v
-	return b[4:], nil
-}
-
-func unmarshalFixed32Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
-	*f.toUint32Ptr() = &v
-	return b[4:], nil
-}
-
-func unmarshalFixed32Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			if len(b) < 4 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
-			s := f.toUint32Slice()
-			*s = append(*s, v)
-			b = b[4:]
-		}
-		return res, nil
-	}
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
-	s := f.toUint32Slice()
-	*s = append(*s, v)
-	return b[4:], nil
-}
-
-func unmarshalFixedS32Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
-	*f.toInt32() = v
-	return b[4:], nil
-}
-
-func unmarshalFixedS32Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
-	f.setInt32Ptr(v)
-	return b[4:], nil
-}
-
-func unmarshalFixedS32Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			if len(b) < 4 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
-			f.appendInt32Slice(v)
-			b = b[4:]
-		}
-		return res, nil
-	}
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
-	f.appendInt32Slice(v)
-	return b[4:], nil
-}
-
-func unmarshalBoolValue(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	// Note: any length varint is allowed, even though any sane
-	// encoder will use one byte.
-	// See https://github.com/golang/protobuf/issues/76
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	// TODO: check if x>1? Tests seem to indicate no.
-	v := x != 0
-	*f.toBool() = v
-	return b[n:], nil
-}
-
-func unmarshalBoolPtr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := x != 0
-	*f.toBoolPtr() = &v
-	return b[n:], nil
-}
-
-func unmarshalBoolSlice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			x, n = decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := x != 0
-			s := f.toBoolSlice()
-			*s = append(*s, v)
-			b = b[n:]
-		}
-		return res, nil
-	}
-	if w != WireVarint {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := x != 0
-	s := f.toBoolSlice()
-	*s = append(*s, v)
-	return b[n:], nil
-}
-
-func unmarshalFloat64Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
-	*f.toFloat64() = v
-	return b[8:], nil
-}
-
-func unmarshalFloat64Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
-	*f.toFloat64Ptr() = &v
-	return b[8:], nil
-}
-
-func unmarshalFloat64Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			if len(b) < 8 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
-			s := f.toFloat64Slice()
-			*s = append(*s, v)
-			b = b[8:]
-		}
-		return res, nil
-	}
-	if w != WireFixed64 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 8 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
-	s := f.toFloat64Slice()
-	*s = append(*s, v)
-	return b[8:], nil
-}
-
-func unmarshalFloat32Value(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
-	*f.toFloat32() = v
-	return b[4:], nil
-}
-
-func unmarshalFloat32Ptr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
-	*f.toFloat32Ptr() = &v
-	return b[4:], nil
-}
-
-func unmarshalFloat32Slice(b []byte, f pointer, w int) ([]byte, error) {
-	if w == WireBytes { // packed
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		res := b[x:]
-		b = b[:x]
-		for len(b) > 0 {
-			if len(b) < 4 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
-			s := f.toFloat32Slice()
-			*s = append(*s, v)
-			b = b[4:]
-		}
-		return res, nil
-	}
-	if w != WireFixed32 {
-		return b, errInternalBadWireType
-	}
-	if len(b) < 4 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
-	s := f.toFloat32Slice()
-	*s = append(*s, v)
-	return b[4:], nil
-}
-
-func unmarshalStringValue(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireBytes {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	if x > uint64(len(b)) {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := string(b[:x])
-	if !utf8.ValidString(v) {
-		return nil, errInvalidUTF8
-	}
-	*f.toString() = v
-	return b[x:], nil
-}
-
-func unmarshalStringPtr(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireBytes {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	if x > uint64(len(b)) {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := string(b[:x])
-	if !utf8.ValidString(v) {
-		return nil, errInvalidUTF8
-	}
-	*f.toStringPtr() = &v
-	return b[x:], nil
-}
-
-func unmarshalStringSlice(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireBytes {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	if x > uint64(len(b)) {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := string(b[:x])
-	if !utf8.ValidString(v) {
-		return nil, errInvalidUTF8
-	}
-	s := f.toStringSlice()
-	*s = append(*s, v)
-	return b[x:], nil
-}
-
-var emptyBuf [0]byte
-
-func unmarshalBytesValue(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireBytes {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	if x > uint64(len(b)) {
-		return nil, io.ErrUnexpectedEOF
-	}
-	// The use of append here is a trick which avoids the zeroing
-	// that would be required if we used a make/copy pair.
-	// We append to emptyBuf instead of nil because we want
-	// a non-nil result even when the length is 0.
-	v := append(emptyBuf[:], b[:x]...)
-	*f.toBytes() = v
-	return b[x:], nil
-}
-
-func unmarshalBytesSlice(b []byte, f pointer, w int) ([]byte, error) {
-	if w != WireBytes {
-		return b, errInternalBadWireType
-	}
-	x, n := decodeVarint(b)
-	if n == 0 {
-		return nil, io.ErrUnexpectedEOF
-	}
-	b = b[n:]
-	if x > uint64(len(b)) {
-		return nil, io.ErrUnexpectedEOF
-	}
-	v := append(emptyBuf[:], b[:x]...)
-	s := f.toBytesSlice()
-	*s = append(*s, v)
-	return b[x:], nil
-}
-
-func makeUnmarshalMessagePtr(sub *unmarshalInfo, name string) unmarshaler {
-	return func(b []byte, f pointer, w int) ([]byte, error) {
-		if w != WireBytes {
-			return b, errInternalBadWireType
-		}
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		// First read the message field to see if something is there.
-		// The semantics of multiple submessages are weird.  Instead of
-		// the last one winning (as it is for all other fields), multiple
-		// submessages are merged.
-		v := f.getPointer()
-		if v.isNil() {
-			v = valToPointer(reflect.New(sub.typ))
-			f.setPointer(v)
-		}
-		err := sub.unmarshal(v, b[:x])
-		if err != nil {
-			if r, ok := err.(*RequiredNotSetError); ok {
-				r.field = name + "." + r.field
-			} else {
-				return nil, err
-			}
-		}
-		return b[x:], err
-	}
-}
-
-func makeUnmarshalMessageSlicePtr(sub *unmarshalInfo, name string) unmarshaler {
-	return func(b []byte, f pointer, w int) ([]byte, error) {
-		if w != WireBytes {
-			return b, errInternalBadWireType
-		}
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		v := valToPointer(reflect.New(sub.typ))
-		err := sub.unmarshal(v, b[:x])
-		if err != nil {
-			if r, ok := err.(*RequiredNotSetError); ok {
-				r.field = name + "." + r.field
-			} else {
-				return nil, err
-			}
-		}
-		f.appendPointer(v)
-		return b[x:], err
-	}
-}
-
-func makeUnmarshalGroupPtr(sub *unmarshalInfo, name string) unmarshaler {
-	return func(b []byte, f pointer, w int) ([]byte, error) {
-		if w != WireStartGroup {
-			return b, errInternalBadWireType
-		}
-		x, y := findEndGroup(b)
-		if x < 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		v := f.getPointer()
-		if v.isNil() {
-			v = valToPointer(reflect.New(sub.typ))
-			f.setPointer(v)
-		}
-		err := sub.unmarshal(v, b[:x])
-		if err != nil {
-			if r, ok := err.(*RequiredNotSetError); ok {
-				r.field = name + "." + r.field
-			} else {
-				return nil, err
-			}
-		}
-		return b[y:], err
-	}
-}
-
-func makeUnmarshalGroupSlicePtr(sub *unmarshalInfo, name string) unmarshaler {
-	return func(b []byte, f pointer, w int) ([]byte, error) {
-		if w != WireStartGroup {
-			return b, errInternalBadWireType
-		}
-		x, y := findEndGroup(b)
-		if x < 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		v := valToPointer(reflect.New(sub.typ))
-		err := sub.unmarshal(v, b[:x])
-		if err != nil {
-			if r, ok := err.(*RequiredNotSetError); ok {
-				r.field = name + "." + r.field
-			} else {
-				return nil, err
-			}
-		}
-		f.appendPointer(v)
-		return b[y:], err
-	}
-}
-
-func makeUnmarshalMap(f *reflect.StructField) unmarshaler {
-	t := f.Type
-	kt := t.Key()
-	vt := t.Elem()
-	unmarshalKey := typeUnmarshaler(kt, f.Tag.Get("protobuf_key"))
-	unmarshalVal := typeUnmarshaler(vt, f.Tag.Get("protobuf_val"))
-	return func(b []byte, f pointer, w int) ([]byte, error) {
-		// The map entry is a submessage. Figure out how big it is.
-		if w != WireBytes {
-			return nil, fmt.Errorf("proto: bad wiretype for map field: got %d want %d", w, WireBytes)
-		}
-		x, n := decodeVarint(b)
-		if n == 0 {
-			return nil, io.ErrUnexpectedEOF
-		}
-		b = b[n:]
-		if x > uint64(len(b)) {
-			return nil, io.ErrUnexpectedEOF
-		}
-		r := b[x:] // unused data to return
-		b = b[:x]  // data for map entry
-
-		// Note: we could use #keys * #values ~= 200 functions
-		// to do map decoding without reflection. Probably not worth it.
-		// Maps will be somewhat slow. Oh well.
-
-		// Read key and value from data.
-		k := reflect.New(kt)
-		v := reflect.New(vt)
-		for len(b) > 0 {
-			x, n := decodeVarint(b)
-			if n == 0 {
-				return nil, io.ErrUnexpectedEOF
-			}
-			wire := int(x) & 7
-			b = b[n:]
-
-			var err error
-			switch x >> 3 {
-			case 1:
-				b, err = unmarshalKey(b, valToPointer(k), wire)
-			case 2:
-				b, err = unmarshalVal(b, valToPointer(v), wire)
-			default:
-				err = errInternalBadWireType // skip unknown tag
-			}
-
-			if err == nil {
-				continue
-			}
-			if err != errInternalBadWireType {
-				return nil, err
-			}
-
-			// Skip past unknown fields.
-			b, err = skipField(b, wire)
-			if err != nil {
-				return nil, err
-			}
-		}
-
-		// Get map, allocate if needed.
-		m := f.asPointerTo(t).Elem() // an addressable map[K]T
-		if m.IsNil() {
-			m.Set(reflect.MakeMap(t))
-		}
-
-		// Insert into map.
-		m.SetMapIndex(k.Elem(), v.Elem())
-
-		return r, nil
-	}
-}
-
-// makeUnmarshalOneof makes an unmarshaler for oneof fields.
-// for:
-// message Msg {
-//   oneof F {
-//     int64 X = 1;
-//     float64 Y = 2;
-//   }
-// }
-// typ is the type of the concrete entry for a oneof case (e.g. Msg_X).
-// ityp is the interface type of the oneof field (e.g. isMsg_F).
-// unmarshal is the unmarshaler for the base type of the oneof case (e.g. int64).
-// Note that this function will be called once for each case in the oneof.
-func makeUnmarshalOneof(typ, ityp reflect.Type, unmarshal unmarshaler) unmarshaler {
-	sf := typ.Field(0)
-	field0 := toField(&sf)
-	return func(b []byte, f pointer, w int) ([]byte, error) {
-		// Allocate holder for value.
-		v := reflect.New(typ)
-
-		// Unmarshal data into holder.
-		// We unmarshal into the first field of the holder object.
-		var err error
-		b, err = unmarshal(b, valToPointer(v).offset(field0), w)
-		if err != nil {
-			return nil, err
-		}
-
-		// Write pointer to holder into target field.
-		f.asPointerTo(ityp).Elem().Set(v)
-
-		return b, nil
-	}
-}
-
-// Error used by decode internally.
-var errInternalBadWireType = errors.New("proto: internal error: bad wiretype")
-
-// skipField skips past a field of type wire and returns the remaining bytes.
-func skipField(b []byte, wire int) ([]byte, error) {
-	switch wire {
-	case WireVarint:
-		_, k := decodeVarint(b)
-		if k == 0 {
-			return b, io.ErrUnexpectedEOF
-		}
-		b = b[k:]
-	case WireFixed32:
-		if len(b) < 4 {
-			return b, io.ErrUnexpectedEOF
-		}
-		b = b[4:]
-	case WireFixed64:
-		if len(b) < 8 {
-			return b, io.ErrUnexpectedEOF
-		}
-		b = b[8:]
-	case WireBytes:
-		m, k := decodeVarint(b)
-		if k == 0 || uint64(len(b)-k) < m {
-			return b, io.ErrUnexpectedEOF
-		}
-		b = b[uint64(k)+m:]
-	case WireStartGroup:
-		_, i := findEndGroup(b)
-		if i == -1 {
-			return b, io.ErrUnexpectedEOF
-		}
-		b = b[i:]
-	default:
-		return b, fmt.Errorf("proto: can't skip unknown wire type %d", wire)
-	}
-	return b, nil
-}
-
-// findEndGroup finds the index of the next EndGroup tag.
-// Groups may be nested, so the "next" EndGroup tag is the first
-// unpaired EndGroup.
-// findEndGroup returns the indexes of the start and end of the EndGroup tag.
-// Returns (-1,-1) if it can't find one.
-func findEndGroup(b []byte) (int, int) {
-	depth := 1
-	i := 0
-	for {
-		x, n := decodeVarint(b[i:])
-		if n == 0 {
-			return -1, -1
-		}
-		j := i
-		i += n
-		switch x & 7 {
-		case WireVarint:
-			_, k := decodeVarint(b[i:])
-			if k == 0 {
-				return -1, -1
-			}
-			i += k
-		case WireFixed32:
-			if len(b)-4 < i {
-				return -1, -1
-			}
-			i += 4
-		case WireFixed64:
-			if len(b)-8 < i {
-				return -1, -1
-			}
-			i += 8
-		case WireBytes:
-			m, k := decodeVarint(b[i:])
-			if k == 0 {
-				return -1, -1
-			}
-			i += k
-			if uint64(len(b)-i) < m {
-				return -1, -1
-			}
-			i += int(m)
-		case WireStartGroup:
-			depth++
-		case WireEndGroup:
-			depth--
-			if depth == 0 {
-				return j, i
-			}
-		default:
-			return -1, -1
-		}
-	}
-}
-
-// encodeVarint appends a varint-encoded integer to b and returns the result.
-func encodeVarint(b []byte, x uint64) []byte {
-	for x >= 1<<7 {
-		b = append(b, byte(x&0x7f|0x80))
-		x >>= 7
-	}
-	return append(b, byte(x))
-}
-
-// decodeVarint reads a varint-encoded integer from b.
-// Returns the decoded integer and the number of bytes read.
-// If there is an error, it returns 0,0.
-func decodeVarint(b []byte) (uint64, int) {
-	var x, y uint64
-	if len(b) <= 0 {
-		goto bad
-	}
-	x = uint64(b[0])
-	if x < 0x80 {
-		return x, 1
-	}
-	x -= 0x80
-
-	if len(b) <= 1 {
-		goto bad
-	}
-	y = uint64(b[1])
-	x += y << 7
-	if y < 0x80 {
-		return x, 2
-	}
-	x -= 0x80 << 7
-
-	if len(b) <= 2 {
-		goto bad
-	}
-	y = uint64(b[2])
-	x += y << 14
-	if y < 0x80 {
-		return x, 3
-	}
-	x -= 0x80 << 14
-
-	if len(b) <= 3 {
-		goto bad
-	}
-	y = uint64(b[3])
-	x += y << 21
-	if y < 0x80 {
-		return x, 4
-	}
-	x -= 0x80 << 21
-
-	if len(b) <= 4 {
-		goto bad
-	}
-	y = uint64(b[4])
-	x += y << 28
-	if y < 0x80 {
-		return x, 5
-	}
-	x -= 0x80 << 28
-
-	if len(b) <= 5 {
-		goto bad
-	}
-	y = uint64(b[5])
-	x += y << 35
-	if y < 0x80 {
-		return x, 6
-	}
-	x -= 0x80 << 35
-
-	if len(b) <= 6 {
-		goto bad
-	}
-	y = uint64(b[6])
-	x += y << 42
-	if y < 0x80 {
-		return x, 7
-	}
-	x -= 0x80 << 42
-
-	if len(b) <= 7 {
-		goto bad
-	}
-	y = uint64(b[7])
-	x += y << 49
-	if y < 0x80 {
-		return x, 8
-	}
-	x -= 0x80 << 49
-
-	if len(b) <= 8 {
-		goto bad
-	}
-	y = uint64(b[8])
-	x += y << 56
-	if y < 0x80 {
-		return x, 9
-	}
-	x -= 0x80 << 56
-
-	if len(b) <= 9 {
-		goto bad
-	}
-	y = uint64(b[9])
-	x += y << 63
-	if y < 2 {
-		return x, 10
-	}
-
-bad:
-	return 0, 0
-}

libnetwork/vendor/github.com/opencontainers/runc/libcontainer/mount/mount.go

@@ -1,23 +0,0 @@
-package mount
-
-// GetMounts retrieves a list of mounts for the current running process.
-func GetMounts() ([]*Info, error) {
-	return parseMountTable()
-}
-
-// Mounted looks at /proc/self/mountinfo to determine of the specified
-// mountpoint has been mounted
-func Mounted(mountpoint string) (bool, error) {
-	entries, err := parseMountTable()
-	if err != nil {
-		return false, err
-	}
-
-	// Search the table for the mountpoint
-	for _, e := range entries {
-		if e.Mountpoint == mountpoint {
-			return true, nil
-		}
-	}
-	return false, nil
-}

libnetwork/vendor/github.com/opencontainers/runc/libcontainer/mount/mount_linux.go

@@ -1,82 +0,0 @@
-// +build linux
-
-package mount
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"os"
-	"strings"
-)
-
-const (
-	/* 36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
-	   (1)(2)(3)   (4)   (5)      (6)      (7)   (8) (9)   (10)         (11)
-
-	   (1) mount ID:  unique identifier of the mount (may be reused after umount)
-	   (2) parent ID:  ID of parent (or of self for the top of the mount tree)
-	   (3) major:minor:  value of st_dev for files on filesystem
-	   (4) root:  root of the mount within the filesystem
-	   (5) mount point:  mount point relative to the process's root
-	   (6) mount options:  per mount options
-	   (7) optional fields:  zero or more fields of the form "tag[:value]"
-	   (8) separator:  marks the end of the optional fields
-	   (9) filesystem type:  name of filesystem of the form "type[.subtype]"
-	   (10) mount source:  filesystem specific information or "none"
-	   (11) super options:  per super block options*/
-	mountinfoFormat = "%d %d %d:%d %s %s %s %s"
-)
-
-// Parse /proc/self/mountinfo because comparing Dev and ino does not work from
-// bind mounts
-func parseMountTable() ([]*Info, error) {
-	f, err := os.Open("/proc/self/mountinfo")
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	return parseInfoFile(f)
-}
-
-func parseInfoFile(r io.Reader) ([]*Info, error) {
-	var (
-		s   = bufio.NewScanner(r)
-		out = []*Info{}
-	)
-
-	for s.Scan() {
-		if err := s.Err(); err != nil {
-			return nil, err
-		}
-
-		var (
-			p              = &Info{}
-			text           = s.Text()
-			optionalFields string
-		)
-
-		if _, err := fmt.Sscanf(text, mountinfoFormat,
-			&p.ID, &p.Parent, &p.Major, &p.Minor,
-			&p.Root, &p.Mountpoint, &p.Opts, &optionalFields); err != nil {
-			return nil, fmt.Errorf("Scanning '%s' failed: %s", text, err)
-		}
-		// Safe as mountinfo encodes mountpoints with spaces as \040.
-		index := strings.Index(text, " - ")
-		postSeparatorFields := strings.Fields(text[index+3:])
-		if len(postSeparatorFields) < 3 {
-			return nil, fmt.Errorf("Error found less than 3 fields post '-' in %q", text)
-		}
-
-		if optionalFields != "-" {
-			p.Optional = optionalFields
-		}
-
-		p.Fstype = postSeparatorFields[0]
-		p.Source = postSeparatorFields[1]
-		p.VfsOpts = strings.Join(postSeparatorFields[2:], " ")
-		out = append(out, p)
-	}
-	return out, nil
-}

libnetwork/vendor/github.com/opencontainers/runc/libcontainer/mount/mountinfo.go

@@ -1,40 +0,0 @@
-package mount
-
-// Info reveals information about a particular mounted filesystem. This
-// struct is populated from the content in the /proc/<pid>/mountinfo file.
-type Info struct {
-	// ID is a unique identifier of the mount (may be reused after umount).
-	ID int
-
-	// Parent indicates the ID of the mount parent (or of self for the top of the
-	// mount tree).
-	Parent int
-
-	// Major indicates one half of the device ID which identifies the device class.
-	Major int
-
-	// Minor indicates one half of the device ID which identifies a specific
-	// instance of device.
-	Minor int
-
-	// Root of the mount within the filesystem.
-	Root string
-
-	// Mountpoint indicates the mount point relative to the process's root.
-	Mountpoint string
-
-	// Opts represents mount-specific options.
-	Opts string
-
-	// Optional represents optional fields.
-	Optional string
-
-	// Fstype indicates the type of filesystem, such as EXT3.
-	Fstype string
-
-	// Source indicates filesystem specific information or "none".
-	Source string
-
-	// VfsOpts represents per super block options.
-	VfsOpts string
-}

libnetwork/vendor/golang.org/x/crypto/otr/libotr_test_helper.c

@@ -1,197 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code can be compiled and used to test the otr package against libotr.
-// See otr_test.go.
-
-// +build ignore
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <proto.h>
-#include <message.h>
-#include <privkey.h>
-
-static int g_session_established = 0;
-
-OtrlPolicy policy(void *opdata, ConnContext *context) {
-  return OTRL_POLICY_ALWAYS;
-}
-
-int is_logged_in(void *opdata, const char *accountname, const char *protocol,
-                 const char *recipient) {
-  return 1;
-}
-
-void inject_message(void *opdata, const char *accountname, const char *protocol,
-                    const char *recipient, const char *message) {
-  printf("%s\n", message);
-  fflush(stdout);
-  fprintf(stderr, "libotr helper sent: %s\n", message);
-}
-
-void update_context_list(void *opdata) {}
-
-void new_fingerprint(void *opdata, OtrlUserState us, const char *accountname,
-                     const char *protocol, const char *username,
-                     unsigned char fingerprint[20]) {
-  fprintf(stderr, "NEW FINGERPRINT\n");
-  g_session_established = 1;
-}
-
-void write_fingerprints(void *opdata) {}
-
-void gone_secure(void *opdata, ConnContext *context) {}
-
-void gone_insecure(void *opdata, ConnContext *context) {}
-
-void still_secure(void *opdata, ConnContext *context, int is_reply) {}
-
-int max_message_size(void *opdata, ConnContext *context) { return 99999; }
-
-const char *account_name(void *opdata, const char *account,
-                         const char *protocol) {
-  return "ACCOUNT";
-}
-
-void account_name_free(void *opdata, const char *account_name) {}
-
-const char *error_message(void *opdata, ConnContext *context,
-                          OtrlErrorCode err_code) {
-  return "ERR";
-}
-
-void error_message_free(void *opdata, const char *msg) {}
-
-void resent_msg_prefix_free(void *opdata, const char *prefix) {}
-
-void handle_smp_event(void *opdata, OtrlSMPEvent smp_event,
-                      ConnContext *context, unsigned short progress_event,
-                      char *question) {}
-
-void handle_msg_event(void *opdata, OtrlMessageEvent msg_event,
-                      ConnContext *context, const char *message,
-                      gcry_error_t err) {
-  fprintf(stderr, "msg event: %d %s\n", msg_event, message);
-}
-
-OtrlMessageAppOps uiops = {
-    policy,
-    NULL,
-    is_logged_in,
-    inject_message,
-    update_context_list,
-    new_fingerprint,
-    write_fingerprints,
-    gone_secure,
-    gone_insecure,
-    still_secure,
-    max_message_size,
-    account_name,
-    account_name_free,
-    NULL, /* received_symkey */
-    error_message,
-    error_message_free,
-    NULL, /* resent_msg_prefix */
-    resent_msg_prefix_free,
-    handle_smp_event,
-    handle_msg_event,
-    NULL /* create_instag */,
-    NULL /* convert_msg */,
-    NULL /* convert_free */,
-    NULL /* timer_control */,
-};
-
-static const char kPrivateKeyData[] =
-    "(privkeys (account (name \"account\") (protocol proto) (private-key (dsa "
-    "(p "
-    "#00FC07ABCF0DC916AFF6E9AE47BEF60C7AB9B4D6B2469E436630E36F8A489BE812486A09F"
-    "30B71224508654940A835301ACC525A4FF133FC152CC53DCC59D65C30A54F1993FE13FE63E"
-    "5823D4C746DB21B90F9B9C00B49EC7404AB1D929BA7FBA12F2E45C6E0A651689750E8528AB"
-    "8C031D3561FECEE72EBB4A090D450A9B7A857#) (q "
-    "#00997BD266EF7B1F60A5C23F3A741F2AEFD07A2081#) (g "
-    "#535E360E8A95EBA46A4F7DE50AD6E9B2A6DB785A66B64EB9F20338D2A3E8FB0E94725848F"
-    "1AA6CC567CB83A1CC517EC806F2E92EAE71457E80B2210A189B91250779434B41FC8A8873F"
-    "6DB94BEA7D177F5D59E7E114EE10A49CFD9CEF88AE43387023B672927BA74B04EB6BBB5E57"
-    "597766A2F9CE3857D7ACE3E1E3BC1FC6F26#) (y "
-    "#0AC8670AD767D7A8D9D14CC1AC6744CD7D76F993B77FFD9E39DF01E5A6536EF65E775FCEF"
-    "2A983E2A19BD6415500F6979715D9FD1257E1FE2B6F5E1E74B333079E7C880D39868462A93"
-    "454B41877BE62E5EF0A041C2EE9C9E76BD1E12AE25D9628DECB097025DD625EF49C3258A1A"
-    "3C0FF501E3DC673B76D7BABF349009B6ECF#) (x "
-    "#14D0345A3562C480A039E3C72764F72D79043216#)))))\n";
-
-int main() {
-  OTRL_INIT;
-
-  // We have to write the private key information to a file because the libotr
-  // API demands a filename to read from.
-  const char *tmpdir = "/tmp";
-  if (getenv("TMP")) {
-    tmpdir = getenv("TMP");
-  }
-
-  char private_key_file[256];
-  snprintf(private_key_file, sizeof(private_key_file),
-           "%s/libotr_test_helper_privatekeys-XXXXXX", tmpdir);
-  int fd = mkstemp(private_key_file);
-  if (fd == -1) {
-    perror("creating temp file");
-  }
-  write(fd, kPrivateKeyData, sizeof(kPrivateKeyData) - 1);
-  close(fd);
-
-  OtrlUserState userstate = otrl_userstate_create();
-  otrl_privkey_read(userstate, private_key_file);
-  unlink(private_key_file);
-
-  fprintf(stderr, "libotr helper started\n");
-
-  char buf[4096];
-
-  for (;;) {
-    char *message = fgets(buf, sizeof(buf), stdin);
-    if (strlen(message) == 0) {
-      break;
-    }
-    message[strlen(message) - 1] = 0;
-    fprintf(stderr, "libotr helper got: %s\n", message);
-
-    char *newmessage = NULL;
-    OtrlTLV *tlvs;
-    int ignore_message = otrl_message_receiving(
-        userstate, &uiops, NULL, "account", "proto", "peer", message,
-        &newmessage, &tlvs, NULL, NULL, NULL);
-    if (tlvs) {
-      otrl_tlv_free(tlvs);
-    }
-
-    if (newmessage != NULL) {
-      fprintf(stderr, "libotr got: %s\n", newmessage);
-      otrl_message_free(newmessage);
-
-      gcry_error_t err;
-      char *newmessage = NULL;
-
-      err = otrl_message_sending(userstate, &uiops, NULL, "account", "proto",
-                                 "peer", 0, "test message", NULL, &newmessage,
-                                 OTRL_FRAGMENT_SEND_SKIP, NULL, NULL, NULL);
-      if (newmessage == NULL) {
-        fprintf(stderr, "libotr didn't encrypt message\n");
-        return 1;
-      }
-      write(1, newmessage, strlen(newmessage));
-      write(1, "\n", 1);
-      fprintf(stderr, "libotr sent: %s\n", newmessage);
-      otrl_message_free(newmessage);
-
-      g_session_established = 0;
-      write(1, "?OTRv2?\n", 8);
-      fprintf(stderr, "libotr sent: ?OTRv2\n");
-    }
-  }
-
-  return 0;
-}

libnetwork/vendor/golang.org/x/crypto/otr/otr.go

@@ -1,1415 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package otr implements the Off The Record protocol as specified in
-// http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html
-package otr // import "golang.org/x/crypto/otr"
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/dsa"
-	"crypto/hmac"
-	"crypto/rand"
-	"crypto/sha1"
-	"crypto/sha256"
-	"crypto/subtle"
-	"encoding/base64"
-	"encoding/hex"
-	"errors"
-	"hash"
-	"io"
-	"math/big"
-	"strconv"
-)
-
-// SecurityChange describes a change in the security state of a Conversation.
-type SecurityChange int
-
-const (
-	NoChange SecurityChange = iota
-	// NewKeys indicates that a key exchange has completed. This occurs
-	// when a conversation first becomes encrypted, and when the keys are
-	// renegotiated within an encrypted conversation.
-	NewKeys
-	// SMPSecretNeeded indicates that the peer has started an
-	// authentication and that we need to supply a secret. Call SMPQuestion
-	// to get the optional, human readable challenge and then Authenticate
-	// to supply the matching secret.
-	SMPSecretNeeded
-	// SMPComplete indicates that an authentication completed. The identity
-	// of the peer has now been confirmed.
-	SMPComplete
-	// SMPFailed indicates that an authentication failed.
-	SMPFailed
-	// ConversationEnded indicates that the peer ended the secure
-	// conversation.
-	ConversationEnded
-)
-
-// QueryMessage can be sent to a peer to start an OTR conversation.
-var QueryMessage = "?OTRv2?"
-
-// ErrorPrefix can be used to make an OTR error by appending an error message
-// to it.
-var ErrorPrefix = "?OTR Error:"
-
-var (
-	fragmentPartSeparator = []byte(",")
-	fragmentPrefix        = []byte("?OTR,")
-	msgPrefix             = []byte("?OTR:")
-	queryMarker           = []byte("?OTR")
-)
-
-// isQuery attempts to parse an OTR query from msg and returns the greatest
-// common version, or 0 if msg is not an OTR query.
-func isQuery(msg []byte) (greatestCommonVersion int) {
-	pos := bytes.Index(msg, queryMarker)
-	if pos == -1 {
-		return 0
-	}
-	for i, c := range msg[pos+len(queryMarker):] {
-		if i == 0 {
-			if c == '?' {
-				// Indicates support for version 1, but we don't
-				// implement that.
-				continue
-			}
-
-			if c != 'v' {
-				// Invalid message
-				return 0
-			}
-
-			continue
-		}
-
-		if c == '?' {
-			// End of message
-			return
-		}
-
-		if c == ' ' || c == '\t' {
-			// Probably an invalid message
-			return 0
-		}
-
-		if c == '2' {
-			greatestCommonVersion = 2
-		}
-	}
-
-	return 0
-}
-
-const (
-	statePlaintext = iota
-	stateEncrypted
-	stateFinished
-)
-
-const (
-	authStateNone = iota
-	authStateAwaitingDHKey
-	authStateAwaitingRevealSig
-	authStateAwaitingSig
-)
-
-const (
-	msgTypeDHCommit  = 2
-	msgTypeData      = 3
-	msgTypeDHKey     = 10
-	msgTypeRevealSig = 17
-	msgTypeSig       = 18
-)
-
-const (
-	// If the requested fragment size is less than this, it will be ignored.
-	minFragmentSize = 18
-	// Messages are padded to a multiple of this number of bytes.
-	paddingGranularity = 256
-	// The number of bytes in a Diffie-Hellman private value (320-bits).
-	dhPrivateBytes = 40
-	// The number of bytes needed to represent an element of the DSA
-	// subgroup (160-bits).
-	dsaSubgroupBytes = 20
-	// The number of bytes of the MAC that are sent on the wire (160-bits).
-	macPrefixBytes = 20
-)
-
-// These are the global, common group parameters for OTR.
-var (
-	p       *big.Int // group prime
-	g       *big.Int // group generator
-	q       *big.Int // group order
-	pMinus2 *big.Int
-)
-
-func init() {
-	p, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF", 16)
-	q, _ = new(big.Int).SetString("7FFFFFFFFFFFFFFFE487ED5110B4611A62633145C06E0E68948127044533E63A0105DF531D89CD9128A5043CC71A026EF7CA8CD9E69D218D98158536F92F8A1BA7F09AB6B6A8E122F242DABB312F3F637A262174D31BF6B585FFAE5B7A035BF6F71C35FDAD44CFD2D74F9208BE258FF324943328F6722D9EE1003E5C50B1DF82CC6D241B0E2AE9CD348B1FD47E9267AFC1B2AE91EE51D6CB0E3179AB1042A95DCF6A9483B84B4B36B3861AA7255E4C0278BA36046511B993FFFFFFFFFFFFFFFF", 16)
-	g = new(big.Int).SetInt64(2)
-	pMinus2 = new(big.Int).Sub(p, g)
-}
-
-// Conversation represents a relation with a peer. The zero value is a valid
-// Conversation, although PrivateKey must be set.
-//
-// When communicating with a peer, all inbound messages should be passed to
-// Conversation.Receive and all outbound messages to Conversation.Send. The
-// Conversation will take care of maintaining the encryption state and
-// negotiating encryption as needed.
-type Conversation struct {
-	// PrivateKey contains the private key to use to sign key exchanges.
-	PrivateKey *PrivateKey
-
-	// Rand can be set to override the entropy source. Otherwise,
-	// crypto/rand will be used.
-	Rand io.Reader
-	// If FragmentSize is set, all messages produced by Receive and Send
-	// will be fragmented into messages of, at most, this number of bytes.
-	FragmentSize int
-
-	// Once Receive has returned NewKeys once, the following fields are
-	// valid.
-	SSID           [8]byte
-	TheirPublicKey PublicKey
-
-	state, authState int
-
-	r       [16]byte
-	x, y    *big.Int
-	gx, gy  *big.Int
-	gxBytes []byte
-	digest  [sha256.Size]byte
-
-	revealKeys, sigKeys akeKeys
-
-	myKeyId         uint32
-	myCurrentDHPub  *big.Int
-	myCurrentDHPriv *big.Int
-	myLastDHPub     *big.Int
-	myLastDHPriv    *big.Int
-
-	theirKeyId        uint32
-	theirCurrentDHPub *big.Int
-	theirLastDHPub    *big.Int
-
-	keySlots [4]keySlot
-
-	myCounter    [8]byte
-	theirLastCtr [8]byte
-	oldMACs      []byte
-
-	k, n int // fragment state
-	frag []byte
-
-	smp smpState
-}
-
-// A keySlot contains key material for a specific (their keyid, my keyid) pair.
-type keySlot struct {
-	// used is true if this slot is valid. If false, it's free for reuse.
-	used                   bool
-	theirKeyId             uint32
-	myKeyId                uint32
-	sendAESKey, recvAESKey []byte
-	sendMACKey, recvMACKey []byte
-	theirLastCtr           [8]byte
-}
-
-// akeKeys are generated during key exchange. There's one set for the reveal
-// signature message and another for the signature message. In the protocol
-// spec the latter are indicated with a prime mark.
-type akeKeys struct {
-	c      [16]byte
-	m1, m2 [32]byte
-}
-
-func (c *Conversation) rand() io.Reader {
-	if c.Rand != nil {
-		return c.Rand
-	}
-	return rand.Reader
-}
-
-func (c *Conversation) randMPI(buf []byte) *big.Int {
-	_, err := io.ReadFull(c.rand(), buf)
-	if err != nil {
-		panic("otr: short read from random source")
-	}
-
-	return new(big.Int).SetBytes(buf)
-}
-
-// tlv represents the type-length value from the protocol.
-type tlv struct {
-	typ, length uint16
-	data        []byte
-}
-
-const (
-	tlvTypePadding          = 0
-	tlvTypeDisconnected     = 1
-	tlvTypeSMP1             = 2
-	tlvTypeSMP2             = 3
-	tlvTypeSMP3             = 4
-	tlvTypeSMP4             = 5
-	tlvTypeSMPAbort         = 6
-	tlvTypeSMP1WithQuestion = 7
-)
-
-// Receive handles a message from a peer. It returns a human readable message,
-// an indicator of whether that message was encrypted, a hint about the
-// encryption state and zero or more messages to send back to the peer.
-// These messages do not need to be passed to Send before transmission.
-func (c *Conversation) Receive(in []byte) (out []byte, encrypted bool, change SecurityChange, toSend [][]byte, err error) {
-	if bytes.HasPrefix(in, fragmentPrefix) {
-		in, err = c.processFragment(in)
-		if in == nil || err != nil {
-			return
-		}
-	}
-
-	if bytes.HasPrefix(in, msgPrefix) && in[len(in)-1] == '.' {
-		in = in[len(msgPrefix) : len(in)-1]
-	} else if version := isQuery(in); version > 0 {
-		c.authState = authStateAwaitingDHKey
-		c.reset()
-		toSend = c.encode(c.generateDHCommit())
-		return
-	} else {
-		// plaintext message
-		out = in
-		return
-	}
-
-	msg := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
-	msgLen, err := base64.StdEncoding.Decode(msg, in)
-	if err != nil {
-		err = errors.New("otr: invalid base64 encoding in message")
-		return
-	}
-	msg = msg[:msgLen]
-
-	// The first two bytes are the protocol version (2)
-	if len(msg) < 3 || msg[0] != 0 || msg[1] != 2 {
-		err = errors.New("otr: invalid OTR message")
-		return
-	}
-
-	msgType := int(msg[2])
-	msg = msg[3:]
-
-	switch msgType {
-	case msgTypeDHCommit:
-		switch c.authState {
-		case authStateNone:
-			c.authState = authStateAwaitingRevealSig
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			c.reset()
-			toSend = c.encode(c.generateDHKey())
-			return
-		case authStateAwaitingDHKey:
-			// This is a 'SYN-crossing'. The greater digest wins.
-			var cmp int
-			if cmp, err = c.compareToDHCommit(msg); err != nil {
-				return
-			}
-			if cmp > 0 {
-				// We win. Retransmit DH commit.
-				toSend = c.encode(c.serializeDHCommit())
-				return
-			} else {
-				// They win. We forget about our DH commit.
-				c.authState = authStateAwaitingRevealSig
-				if err = c.processDHCommit(msg); err != nil {
-					return
-				}
-				c.reset()
-				toSend = c.encode(c.generateDHKey())
-				return
-			}
-		case authStateAwaitingRevealSig:
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			toSend = c.encode(c.serializeDHKey())
-		case authStateAwaitingSig:
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			c.reset()
-			toSend = c.encode(c.generateDHKey())
-			c.authState = authStateAwaitingRevealSig
-		default:
-			panic("bad state")
-		}
-	case msgTypeDHKey:
-		switch c.authState {
-		case authStateAwaitingDHKey:
-			var isSame bool
-			if isSame, err = c.processDHKey(msg); err != nil {
-				return
-			}
-			if isSame {
-				err = errors.New("otr: unexpected duplicate DH key")
-				return
-			}
-			toSend = c.encode(c.generateRevealSig())
-			c.authState = authStateAwaitingSig
-		case authStateAwaitingSig:
-			var isSame bool
-			if isSame, err = c.processDHKey(msg); err != nil {
-				return
-			}
-			if isSame {
-				toSend = c.encode(c.serializeDHKey())
-			}
-		}
-	case msgTypeRevealSig:
-		if c.authState != authStateAwaitingRevealSig {
-			return
-		}
-		if err = c.processRevealSig(msg); err != nil {
-			return
-		}
-		toSend = c.encode(c.generateSig())
-		c.authState = authStateNone
-		c.state = stateEncrypted
-		change = NewKeys
-	case msgTypeSig:
-		if c.authState != authStateAwaitingSig {
-			return
-		}
-		if err = c.processSig(msg); err != nil {
-			return
-		}
-		c.authState = authStateNone
-		c.state = stateEncrypted
-		change = NewKeys
-	case msgTypeData:
-		if c.state != stateEncrypted {
-			err = errors.New("otr: encrypted message received without encrypted session established")
-			return
-		}
-		var tlvs []tlv
-		out, tlvs, err = c.processData(msg)
-		encrypted = true
-
-	EachTLV:
-		for _, inTLV := range tlvs {
-			switch inTLV.typ {
-			case tlvTypeDisconnected:
-				change = ConversationEnded
-				c.state = stateFinished
-				break EachTLV
-			case tlvTypeSMP1, tlvTypeSMP2, tlvTypeSMP3, tlvTypeSMP4, tlvTypeSMPAbort, tlvTypeSMP1WithQuestion:
-				var reply tlv
-				var complete bool
-				reply, complete, err = c.processSMP(inTLV)
-				if err == smpSecretMissingError {
-					err = nil
-					change = SMPSecretNeeded
-					c.smp.saved = &inTLV
-					return
-				}
-				if err == smpFailureError {
-					err = nil
-					change = SMPFailed
-				} else if complete {
-					change = SMPComplete
-				}
-				if reply.typ != 0 {
-					toSend = c.encode(c.generateData(nil, &reply))
-				}
-				break EachTLV
-			default:
-				// skip unknown TLVs
-			}
-		}
-	default:
-		err = errors.New("otr: unknown message type " + strconv.Itoa(msgType))
-	}
-
-	return
-}
-
-// Send takes a human readable message from the local user, possibly encrypts
-// it and returns zero one or more messages to send to the peer.
-func (c *Conversation) Send(msg []byte) ([][]byte, error) {
-	switch c.state {
-	case statePlaintext:
-		return [][]byte{msg}, nil
-	case stateEncrypted:
-		return c.encode(c.generateData(msg, nil)), nil
-	case stateFinished:
-		return nil, errors.New("otr: cannot send message because secure conversation has finished")
-	}
-
-	return nil, errors.New("otr: cannot send message in current state")
-}
-
-// SMPQuestion returns the human readable challenge question from the peer.
-// It's only valid after Receive has returned SMPSecretNeeded.
-func (c *Conversation) SMPQuestion() string {
-	return c.smp.question
-}
-
-// Authenticate begins an authentication with the peer. Authentication involves
-// an optional challenge message and a shared secret. The authentication
-// proceeds until either Receive returns SMPComplete, SMPSecretNeeded (which
-// indicates that a new authentication is happening and thus this one was
-// aborted) or SMPFailed.
-func (c *Conversation) Authenticate(question string, mutualSecret []byte) (toSend [][]byte, err error) {
-	if c.state != stateEncrypted {
-		err = errors.New("otr: can't authenticate a peer without a secure conversation established")
-		return
-	}
-
-	if c.smp.saved != nil {
-		c.calcSMPSecret(mutualSecret, false /* they started it */)
-
-		var out tlv
-		var complete bool
-		out, complete, err = c.processSMP(*c.smp.saved)
-		if complete {
-			panic("SMP completed on the first message")
-		}
-		c.smp.saved = nil
-		if out.typ != 0 {
-			toSend = c.encode(c.generateData(nil, &out))
-		}
-		return
-	}
-
-	c.calcSMPSecret(mutualSecret, true /* we started it */)
-	outs := c.startSMP(question)
-	for _, out := range outs {
-		toSend = append(toSend, c.encode(c.generateData(nil, &out))...)
-	}
-	return
-}
-
-// End ends a secure conversation by generating a termination message for
-// the peer and switches to unencrypted communication.
-func (c *Conversation) End() (toSend [][]byte) {
-	switch c.state {
-	case statePlaintext:
-		return nil
-	case stateEncrypted:
-		c.state = statePlaintext
-		return c.encode(c.generateData(nil, &tlv{typ: tlvTypeDisconnected}))
-	case stateFinished:
-		c.state = statePlaintext
-		return nil
-	}
-	panic("unreachable")
-}
-
-// IsEncrypted returns true if a message passed to Send would be encrypted
-// before transmission. This result remains valid until the next call to
-// Receive or End, which may change the state of the Conversation.
-func (c *Conversation) IsEncrypted() bool {
-	return c.state == stateEncrypted
-}
-
-var fragmentError = errors.New("otr: invalid OTR fragment")
-
-// processFragment processes a fragmented OTR message and possibly returns a
-// complete message. Fragmented messages look like "?OTR,k,n,msg," where k is
-// the fragment number (starting from 1), n is the number of fragments in this
-// message and msg is a substring of the base64 encoded message.
-func (c *Conversation) processFragment(in []byte) (out []byte, err error) {
-	in = in[len(fragmentPrefix):] // remove "?OTR,"
-	parts := bytes.Split(in, fragmentPartSeparator)
-	if len(parts) != 4 || len(parts[3]) != 0 {
-		return nil, fragmentError
-	}
-
-	k, err := strconv.Atoi(string(parts[0]))
-	if err != nil {
-		return nil, fragmentError
-	}
-
-	n, err := strconv.Atoi(string(parts[1]))
-	if err != nil {
-		return nil, fragmentError
-	}
-
-	if k < 1 || n < 1 || k > n {
-		return nil, fragmentError
-	}
-
-	if k == 1 {
-		c.frag = append(c.frag[:0], parts[2]...)
-		c.k, c.n = k, n
-	} else if n == c.n && k == c.k+1 {
-		c.frag = append(c.frag, parts[2]...)
-		c.k++
-	} else {
-		c.frag = c.frag[:0]
-		c.n, c.k = 0, 0
-	}
-
-	if c.n > 0 && c.k == c.n {
-		c.n, c.k = 0, 0
-		return c.frag, nil
-	}
-
-	return nil, nil
-}
-
-func (c *Conversation) generateDHCommit() []byte {
-	_, err := io.ReadFull(c.rand(), c.r[:])
-	if err != nil {
-		panic("otr: short read from random source")
-	}
-
-	var xBytes [dhPrivateBytes]byte
-	c.x = c.randMPI(xBytes[:])
-	c.gx = new(big.Int).Exp(g, c.x, p)
-	c.gy = nil
-	c.gxBytes = appendMPI(nil, c.gx)
-
-	h := sha256.New()
-	h.Write(c.gxBytes)
-	h.Sum(c.digest[:0])
-
-	aesCipher, err := aes.NewCipher(c.r[:])
-	if err != nil {
-		panic(err.Error())
-	}
-
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(c.gxBytes, c.gxBytes)
-
-	return c.serializeDHCommit()
-}
-
-func (c *Conversation) serializeDHCommit() []byte {
-	var ret []byte
-	ret = appendU16(ret, 2) // protocol version
-	ret = append(ret, msgTypeDHCommit)
-	ret = appendData(ret, c.gxBytes)
-	ret = appendData(ret, c.digest[:])
-	return ret
-}
-
-func (c *Conversation) processDHCommit(in []byte) error {
-	var ok1, ok2 bool
-	c.gxBytes, in, ok1 = getData(in)
-	digest, in, ok2 := getData(in)
-	if !ok1 || !ok2 || len(in) > 0 {
-		return errors.New("otr: corrupt DH commit message")
-	}
-	copy(c.digest[:], digest)
-	return nil
-}
-
-func (c *Conversation) compareToDHCommit(in []byte) (int, error) {
-	_, in, ok1 := getData(in)
-	digest, in, ok2 := getData(in)
-	if !ok1 || !ok2 || len(in) > 0 {
-		return 0, errors.New("otr: corrupt DH commit message")
-	}
-	return bytes.Compare(c.digest[:], digest), nil
-}
-
-func (c *Conversation) generateDHKey() []byte {
-	var yBytes [dhPrivateBytes]byte
-	c.y = c.randMPI(yBytes[:])
-	c.gy = new(big.Int).Exp(g, c.y, p)
-	return c.serializeDHKey()
-}
-
-func (c *Conversation) serializeDHKey() []byte {
-	var ret []byte
-	ret = appendU16(ret, 2) // protocol version
-	ret = append(ret, msgTypeDHKey)
-	ret = appendMPI(ret, c.gy)
-	return ret
-}
-
-func (c *Conversation) processDHKey(in []byte) (isSame bool, err error) {
-	gy, in, ok := getMPI(in)
-	if !ok {
-		err = errors.New("otr: corrupt DH key message")
-		return
-	}
-	if gy.Cmp(g) < 0 || gy.Cmp(pMinus2) > 0 {
-		err = errors.New("otr: DH value out of range")
-		return
-	}
-	if c.gy != nil {
-		isSame = c.gy.Cmp(gy) == 0
-		return
-	}
-	c.gy = gy
-	return
-}
-
-func (c *Conversation) generateEncryptedSignature(keys *akeKeys, xFirst bool) ([]byte, []byte) {
-	var xb []byte
-	xb = c.PrivateKey.PublicKey.Serialize(xb)
-
-	var verifyData []byte
-	if xFirst {
-		verifyData = appendMPI(verifyData, c.gx)
-		verifyData = appendMPI(verifyData, c.gy)
-	} else {
-		verifyData = appendMPI(verifyData, c.gy)
-		verifyData = appendMPI(verifyData, c.gx)
-	}
-	verifyData = append(verifyData, xb...)
-	verifyData = appendU32(verifyData, c.myKeyId)
-
-	mac := hmac.New(sha256.New, keys.m1[:])
-	mac.Write(verifyData)
-	mb := mac.Sum(nil)
-
-	xb = appendU32(xb, c.myKeyId)
-	xb = append(xb, c.PrivateKey.Sign(c.rand(), mb)...)
-
-	aesCipher, err := aes.NewCipher(keys.c[:])
-	if err != nil {
-		panic(err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(xb, xb)
-
-	mac = hmac.New(sha256.New, keys.m2[:])
-	encryptedSig := appendData(nil, xb)
-	mac.Write(encryptedSig)
-
-	return encryptedSig, mac.Sum(nil)
-}
-
-func (c *Conversation) generateRevealSig() []byte {
-	s := new(big.Int).Exp(c.gy, c.x, p)
-	c.calcAKEKeys(s)
-	c.myKeyId++
-
-	encryptedSig, mac := c.generateEncryptedSignature(&c.revealKeys, true /* gx comes first */)
-
-	c.myCurrentDHPub = c.gx
-	c.myCurrentDHPriv = c.x
-	c.rotateDHKeys()
-	incCounter(&c.myCounter)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeRevealSig)
-	ret = appendData(ret, c.r[:])
-	ret = append(ret, encryptedSig...)
-	ret = append(ret, mac[:20]...)
-	return ret
-}
-
-func (c *Conversation) processEncryptedSig(encryptedSig, theirMAC []byte, keys *akeKeys, xFirst bool) error {
-	mac := hmac.New(sha256.New, keys.m2[:])
-	mac.Write(appendData(nil, encryptedSig))
-	myMAC := mac.Sum(nil)[:20]
-
-	if len(myMAC) != len(theirMAC) || subtle.ConstantTimeCompare(myMAC, theirMAC) == 0 {
-		return errors.New("bad signature MAC in encrypted signature")
-	}
-
-	aesCipher, err := aes.NewCipher(keys.c[:])
-	if err != nil {
-		panic(err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encryptedSig, encryptedSig)
-
-	sig := encryptedSig
-	sig, ok1 := c.TheirPublicKey.Parse(sig)
-	keyId, sig, ok2 := getU32(sig)
-	if !ok1 || !ok2 {
-		return errors.New("otr: corrupt encrypted signature")
-	}
-
-	var verifyData []byte
-	if xFirst {
-		verifyData = appendMPI(verifyData, c.gx)
-		verifyData = appendMPI(verifyData, c.gy)
-	} else {
-		verifyData = appendMPI(verifyData, c.gy)
-		verifyData = appendMPI(verifyData, c.gx)
-	}
-	verifyData = c.TheirPublicKey.Serialize(verifyData)
-	verifyData = appendU32(verifyData, keyId)
-
-	mac = hmac.New(sha256.New, keys.m1[:])
-	mac.Write(verifyData)
-	mb := mac.Sum(nil)
-
-	sig, ok1 = c.TheirPublicKey.Verify(mb, sig)
-	if !ok1 {
-		return errors.New("bad signature in encrypted signature")
-	}
-	if len(sig) > 0 {
-		return errors.New("corrupt encrypted signature")
-	}
-
-	c.theirKeyId = keyId
-	zero(c.theirLastCtr[:])
-	return nil
-}
-
-func (c *Conversation) processRevealSig(in []byte) error {
-	r, in, ok1 := getData(in)
-	encryptedSig, in, ok2 := getData(in)
-	theirMAC := in
-	if !ok1 || !ok2 || len(theirMAC) != 20 {
-		return errors.New("otr: corrupt reveal signature message")
-	}
-
-	aesCipher, err := aes.NewCipher(r)
-	if err != nil {
-		return errors.New("otr: cannot create AES cipher from reveal signature message: " + err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(c.gxBytes, c.gxBytes)
-	h := sha256.New()
-	h.Write(c.gxBytes)
-	digest := h.Sum(nil)
-	if len(digest) != len(c.digest) || subtle.ConstantTimeCompare(digest, c.digest[:]) == 0 {
-		return errors.New("otr: bad commit MAC in reveal signature message")
-	}
-	var rest []byte
-	c.gx, rest, ok1 = getMPI(c.gxBytes)
-	if !ok1 || len(rest) > 0 {
-		return errors.New("otr: gx corrupt after decryption")
-	}
-	if c.gx.Cmp(g) < 0 || c.gx.Cmp(pMinus2) > 0 {
-		return errors.New("otr: DH value out of range")
-	}
-	s := new(big.Int).Exp(c.gx, c.y, p)
-	c.calcAKEKeys(s)
-
-	if err := c.processEncryptedSig(encryptedSig, theirMAC, &c.revealKeys, true /* gx comes first */); err != nil {
-		return errors.New("otr: in reveal signature message: " + err.Error())
-	}
-
-	c.theirCurrentDHPub = c.gx
-	c.theirLastDHPub = nil
-
-	return nil
-}
-
-func (c *Conversation) generateSig() []byte {
-	c.myKeyId++
-
-	encryptedSig, mac := c.generateEncryptedSignature(&c.sigKeys, false /* gy comes first */)
-
-	c.myCurrentDHPub = c.gy
-	c.myCurrentDHPriv = c.y
-	c.rotateDHKeys()
-	incCounter(&c.myCounter)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeSig)
-	ret = append(ret, encryptedSig...)
-	ret = append(ret, mac[:macPrefixBytes]...)
-	return ret
-}
-
-func (c *Conversation) processSig(in []byte) error {
-	encryptedSig, in, ok1 := getData(in)
-	theirMAC := in
-	if !ok1 || len(theirMAC) != macPrefixBytes {
-		return errors.New("otr: corrupt signature message")
-	}
-
-	if err := c.processEncryptedSig(encryptedSig, theirMAC, &c.sigKeys, false /* gy comes first */); err != nil {
-		return errors.New("otr: in signature message: " + err.Error())
-	}
-
-	c.theirCurrentDHPub = c.gy
-	c.theirLastDHPub = nil
-
-	return nil
-}
-
-func (c *Conversation) rotateDHKeys() {
-	// evict slots using our retired key id
-	for i := range c.keySlots {
-		slot := &c.keySlots[i]
-		if slot.used && slot.myKeyId == c.myKeyId-1 {
-			slot.used = false
-			c.oldMACs = append(c.oldMACs, slot.recvMACKey...)
-		}
-	}
-
-	c.myLastDHPriv = c.myCurrentDHPriv
-	c.myLastDHPub = c.myCurrentDHPub
-
-	var xBytes [dhPrivateBytes]byte
-	c.myCurrentDHPriv = c.randMPI(xBytes[:])
-	c.myCurrentDHPub = new(big.Int).Exp(g, c.myCurrentDHPriv, p)
-	c.myKeyId++
-}
-
-func (c *Conversation) processData(in []byte) (out []byte, tlvs []tlv, err error) {
-	origIn := in
-	flags, in, ok1 := getU8(in)
-	theirKeyId, in, ok2 := getU32(in)
-	myKeyId, in, ok3 := getU32(in)
-	y, in, ok4 := getMPI(in)
-	counter, in, ok5 := getNBytes(in, 8)
-	encrypted, in, ok6 := getData(in)
-	macedData := origIn[:len(origIn)-len(in)]
-	theirMAC, in, ok7 := getNBytes(in, macPrefixBytes)
-	_, in, ok8 := getData(in)
-	if !ok1 || !ok2 || !ok3 || !ok4 || !ok5 || !ok6 || !ok7 || !ok8 || len(in) > 0 {
-		err = errors.New("otr: corrupt data message")
-		return
-	}
-
-	ignoreErrors := flags&1 != 0
-
-	slot, err := c.calcDataKeys(myKeyId, theirKeyId)
-	if err != nil {
-		if ignoreErrors {
-			err = nil
-		}
-		return
-	}
-
-	mac := hmac.New(sha1.New, slot.recvMACKey)
-	mac.Write([]byte{0, 2, 3})
-	mac.Write(macedData)
-	myMAC := mac.Sum(nil)
-	if len(myMAC) != len(theirMAC) || subtle.ConstantTimeCompare(myMAC, theirMAC) == 0 {
-		if !ignoreErrors {
-			err = errors.New("otr: bad MAC on data message")
-		}
-		return
-	}
-
-	if bytes.Compare(counter, slot.theirLastCtr[:]) <= 0 {
-		err = errors.New("otr: counter regressed")
-		return
-	}
-	copy(slot.theirLastCtr[:], counter)
-
-	var iv [aes.BlockSize]byte
-	copy(iv[:], counter)
-	aesCipher, err := aes.NewCipher(slot.recvAESKey)
-	if err != nil {
-		panic(err.Error())
-	}
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encrypted, encrypted)
-	decrypted := encrypted
-
-	if myKeyId == c.myKeyId {
-		c.rotateDHKeys()
-	}
-	if theirKeyId == c.theirKeyId {
-		// evict slots using their retired key id
-		for i := range c.keySlots {
-			slot := &c.keySlots[i]
-			if slot.used && slot.theirKeyId == theirKeyId-1 {
-				slot.used = false
-				c.oldMACs = append(c.oldMACs, slot.recvMACKey...)
-			}
-		}
-
-		c.theirLastDHPub = c.theirCurrentDHPub
-		c.theirKeyId++
-		c.theirCurrentDHPub = y
-	}
-
-	if nulPos := bytes.IndexByte(decrypted, 0); nulPos >= 0 {
-		out = decrypted[:nulPos]
-		tlvData := decrypted[nulPos+1:]
-		for len(tlvData) > 0 {
-			var t tlv
-			var ok1, ok2, ok3 bool
-
-			t.typ, tlvData, ok1 = getU16(tlvData)
-			t.length, tlvData, ok2 = getU16(tlvData)
-			t.data, tlvData, ok3 = getNBytes(tlvData, int(t.length))
-			if !ok1 || !ok2 || !ok3 {
-				err = errors.New("otr: corrupt tlv data")
-				return
-			}
-			tlvs = append(tlvs, t)
-		}
-	} else {
-		out = decrypted
-	}
-
-	return
-}
-
-func (c *Conversation) generateData(msg []byte, extra *tlv) []byte {
-	slot, err := c.calcDataKeys(c.myKeyId-1, c.theirKeyId)
-	if err != nil {
-		panic("otr: failed to generate sending keys: " + err.Error())
-	}
-
-	var plaintext []byte
-	plaintext = append(plaintext, msg...)
-	plaintext = append(plaintext, 0)
-
-	padding := paddingGranularity - ((len(plaintext) + 4) % paddingGranularity)
-	plaintext = appendU16(plaintext, tlvTypePadding)
-	plaintext = appendU16(plaintext, uint16(padding))
-	for i := 0; i < padding; i++ {
-		plaintext = append(plaintext, 0)
-	}
-
-	if extra != nil {
-		plaintext = appendU16(plaintext, extra.typ)
-		plaintext = appendU16(plaintext, uint16(len(extra.data)))
-		plaintext = append(plaintext, extra.data...)
-	}
-
-	encrypted := make([]byte, len(plaintext))
-
-	var iv [aes.BlockSize]byte
-	copy(iv[:], c.myCounter[:])
-	aesCipher, err := aes.NewCipher(slot.sendAESKey)
-	if err != nil {
-		panic(err.Error())
-	}
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encrypted, plaintext)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeData)
-	ret = append(ret, 0 /* flags */)
-	ret = appendU32(ret, c.myKeyId-1)
-	ret = appendU32(ret, c.theirKeyId)
-	ret = appendMPI(ret, c.myCurrentDHPub)
-	ret = append(ret, c.myCounter[:]...)
-	ret = appendData(ret, encrypted)
-
-	mac := hmac.New(sha1.New, slot.sendMACKey)
-	mac.Write(ret)
-	ret = append(ret, mac.Sum(nil)[:macPrefixBytes]...)
-	ret = appendData(ret, c.oldMACs)
-	c.oldMACs = nil
-	incCounter(&c.myCounter)
-
-	return ret
-}
-
-func incCounter(counter *[8]byte) {
-	for i := 7; i >= 0; i-- {
-		counter[i]++
-		if counter[i] > 0 {
-			break
-		}
-	}
-}
-
-// calcDataKeys computes the keys used to encrypt a data message given the key
-// IDs.
-func (c *Conversation) calcDataKeys(myKeyId, theirKeyId uint32) (slot *keySlot, err error) {
-	// Check for a cache hit.
-	for i := range c.keySlots {
-		slot = &c.keySlots[i]
-		if slot.used && slot.theirKeyId == theirKeyId && slot.myKeyId == myKeyId {
-			return
-		}
-	}
-
-	// Find an empty slot to write into.
-	slot = nil
-	for i := range c.keySlots {
-		if !c.keySlots[i].used {
-			slot = &c.keySlots[i]
-			break
-		}
-	}
-	if slot == nil {
-		return nil, errors.New("otr: internal error: no more key slots")
-	}
-
-	var myPriv, myPub, theirPub *big.Int
-
-	if myKeyId == c.myKeyId {
-		myPriv = c.myCurrentDHPriv
-		myPub = c.myCurrentDHPub
-	} else if myKeyId == c.myKeyId-1 {
-		myPriv = c.myLastDHPriv
-		myPub = c.myLastDHPub
-	} else {
-		err = errors.New("otr: peer requested keyid " + strconv.FormatUint(uint64(myKeyId), 10) + " when I'm on " + strconv.FormatUint(uint64(c.myKeyId), 10))
-		return
-	}
-
-	if theirKeyId == c.theirKeyId {
-		theirPub = c.theirCurrentDHPub
-	} else if theirKeyId == c.theirKeyId-1 && c.theirLastDHPub != nil {
-		theirPub = c.theirLastDHPub
-	} else {
-		err = errors.New("otr: peer requested keyid " + strconv.FormatUint(uint64(myKeyId), 10) + " when they're on " + strconv.FormatUint(uint64(c.myKeyId), 10))
-		return
-	}
-
-	var sendPrefixByte, recvPrefixByte [1]byte
-
-	if myPub.Cmp(theirPub) > 0 {
-		// we're the high end
-		sendPrefixByte[0], recvPrefixByte[0] = 1, 2
-	} else {
-		// we're the low end
-		sendPrefixByte[0], recvPrefixByte[0] = 2, 1
-	}
-
-	s := new(big.Int).Exp(theirPub, myPriv, p)
-	sBytes := appendMPI(nil, s)
-
-	h := sha1.New()
-	h.Write(sendPrefixByte[:])
-	h.Write(sBytes)
-	slot.sendAESKey = h.Sum(slot.sendAESKey[:0])[:16]
-
-	h.Reset()
-	h.Write(slot.sendAESKey)
-	slot.sendMACKey = h.Sum(slot.sendMACKey[:0])
-
-	h.Reset()
-	h.Write(recvPrefixByte[:])
-	h.Write(sBytes)
-	slot.recvAESKey = h.Sum(slot.recvAESKey[:0])[:16]
-
-	h.Reset()
-	h.Write(slot.recvAESKey)
-	slot.recvMACKey = h.Sum(slot.recvMACKey[:0])
-
-	slot.theirKeyId = theirKeyId
-	slot.myKeyId = myKeyId
-	slot.used = true
-
-	zero(slot.theirLastCtr[:])
-	return
-}
-
-func (c *Conversation) calcAKEKeys(s *big.Int) {
-	mpi := appendMPI(nil, s)
-	h := sha256.New()
-
-	var cBytes [32]byte
-	hashWithPrefix(c.SSID[:], 0, mpi, h)
-
-	hashWithPrefix(cBytes[:], 1, mpi, h)
-	copy(c.revealKeys.c[:], cBytes[:16])
-	copy(c.sigKeys.c[:], cBytes[16:])
-
-	hashWithPrefix(c.revealKeys.m1[:], 2, mpi, h)
-	hashWithPrefix(c.revealKeys.m2[:], 3, mpi, h)
-	hashWithPrefix(c.sigKeys.m1[:], 4, mpi, h)
-	hashWithPrefix(c.sigKeys.m2[:], 5, mpi, h)
-}
-
-func hashWithPrefix(out []byte, prefix byte, in []byte, h hash.Hash) {
-	h.Reset()
-	var p [1]byte
-	p[0] = prefix
-	h.Write(p[:])
-	h.Write(in)
-	if len(out) == h.Size() {
-		h.Sum(out[:0])
-	} else {
-		digest := h.Sum(nil)
-		copy(out, digest)
-	}
-}
-
-func (c *Conversation) encode(msg []byte) [][]byte {
-	b64 := make([]byte, base64.StdEncoding.EncodedLen(len(msg))+len(msgPrefix)+1)
-	base64.StdEncoding.Encode(b64[len(msgPrefix):], msg)
-	copy(b64, msgPrefix)
-	b64[len(b64)-1] = '.'
-
-	if c.FragmentSize < minFragmentSize || len(b64) <= c.FragmentSize {
-		// We can encode this in a single fragment.
-		return [][]byte{b64}
-	}
-
-	// We have to fragment this message.
-	var ret [][]byte
-	bytesPerFragment := c.FragmentSize - minFragmentSize
-	numFragments := (len(b64) + bytesPerFragment) / bytesPerFragment
-
-	for i := 0; i < numFragments; i++ {
-		frag := []byte("?OTR," + strconv.Itoa(i+1) + "," + strconv.Itoa(numFragments) + ",")
-		todo := bytesPerFragment
-		if todo > len(b64) {
-			todo = len(b64)
-		}
-		frag = append(frag, b64[:todo]...)
-		b64 = b64[todo:]
-		frag = append(frag, ',')
-		ret = append(ret, frag)
-	}
-
-	return ret
-}
-
-func (c *Conversation) reset() {
-	c.myKeyId = 0
-
-	for i := range c.keySlots {
-		c.keySlots[i].used = false
-	}
-}
-
-type PublicKey struct {
-	dsa.PublicKey
-}
-
-func (pk *PublicKey) Parse(in []byte) ([]byte, bool) {
-	var ok bool
-	var pubKeyType uint16
-
-	if pubKeyType, in, ok = getU16(in); !ok || pubKeyType != 0 {
-		return nil, false
-	}
-	if pk.P, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.Q, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.G, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.Y, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-
-	return in, true
-}
-
-func (pk *PublicKey) Serialize(in []byte) []byte {
-	in = appendU16(in, 0)
-	in = appendMPI(in, pk.P)
-	in = appendMPI(in, pk.Q)
-	in = appendMPI(in, pk.G)
-	in = appendMPI(in, pk.Y)
-	return in
-}
-
-// Fingerprint returns the 20-byte, binary fingerprint of the PublicKey.
-func (pk *PublicKey) Fingerprint() []byte {
-	b := pk.Serialize(nil)
-	h := sha1.New()
-	h.Write(b[2:])
-	return h.Sum(nil)
-}
-
-func (pk *PublicKey) Verify(hashed, sig []byte) ([]byte, bool) {
-	if len(sig) != 2*dsaSubgroupBytes {
-		return nil, false
-	}
-	r := new(big.Int).SetBytes(sig[:dsaSubgroupBytes])
-	s := new(big.Int).SetBytes(sig[dsaSubgroupBytes:])
-	ok := dsa.Verify(&pk.PublicKey, hashed, r, s)
-	return sig[dsaSubgroupBytes*2:], ok
-}
-
-type PrivateKey struct {
-	PublicKey
-	dsa.PrivateKey
-}
-
-func (priv *PrivateKey) Sign(rand io.Reader, hashed []byte) []byte {
-	r, s, err := dsa.Sign(rand, &priv.PrivateKey, hashed)
-	if err != nil {
-		panic(err.Error())
-	}
-	rBytes := r.Bytes()
-	sBytes := s.Bytes()
-	if len(rBytes) > dsaSubgroupBytes || len(sBytes) > dsaSubgroupBytes {
-		panic("DSA signature too large")
-	}
-
-	out := make([]byte, 2*dsaSubgroupBytes)
-	copy(out[dsaSubgroupBytes-len(rBytes):], rBytes)
-	copy(out[len(out)-len(sBytes):], sBytes)
-	return out
-}
-
-func (priv *PrivateKey) Serialize(in []byte) []byte {
-	in = priv.PublicKey.Serialize(in)
-	in = appendMPI(in, priv.PrivateKey.X)
-	return in
-}
-
-func (priv *PrivateKey) Parse(in []byte) ([]byte, bool) {
-	in, ok := priv.PublicKey.Parse(in)
-	if !ok {
-		return in, ok
-	}
-	priv.PrivateKey.PublicKey = priv.PublicKey.PublicKey
-	priv.PrivateKey.X, in, ok = getMPI(in)
-	return in, ok
-}
-
-func (priv *PrivateKey) Generate(rand io.Reader) {
-	if err := dsa.GenerateParameters(&priv.PrivateKey.PublicKey.Parameters, rand, dsa.L1024N160); err != nil {
-		panic(err.Error())
-	}
-	if err := dsa.GenerateKey(&priv.PrivateKey, rand); err != nil {
-		panic(err.Error())
-	}
-	priv.PublicKey.PublicKey = priv.PrivateKey.PublicKey
-}
-
-func notHex(r rune) bool {
-	if r >= '0' && r <= '9' ||
-		r >= 'a' && r <= 'f' ||
-		r >= 'A' && r <= 'F' {
-		return false
-	}
-
-	return true
-}
-
-// Import parses the contents of a libotr private key file.
-func (priv *PrivateKey) Import(in []byte) bool {
-	mpiStart := []byte(" #")
-
-	mpis := make([]*big.Int, 5)
-
-	for i := 0; i < len(mpis); i++ {
-		start := bytes.Index(in, mpiStart)
-		if start == -1 {
-			return false
-		}
-		in = in[start+len(mpiStart):]
-		end := bytes.IndexFunc(in, notHex)
-		if end == -1 {
-			return false
-		}
-		hexBytes := in[:end]
-		in = in[end:]
-
-		if len(hexBytes)&1 != 0 {
-			return false
-		}
-
-		mpiBytes := make([]byte, len(hexBytes)/2)
-		if _, err := hex.Decode(mpiBytes, hexBytes); err != nil {
-			return false
-		}
-
-		mpis[i] = new(big.Int).SetBytes(mpiBytes)
-	}
-
-	for _, mpi := range mpis {
-		if mpi.Sign() <= 0 {
-			return false
-		}
-	}
-
-	priv.PrivateKey.P = mpis[0]
-	priv.PrivateKey.Q = mpis[1]
-	priv.PrivateKey.G = mpis[2]
-	priv.PrivateKey.Y = mpis[3]
-	priv.PrivateKey.X = mpis[4]
-	priv.PublicKey.PublicKey = priv.PrivateKey.PublicKey
-
-	a := new(big.Int).Exp(priv.PrivateKey.G, priv.PrivateKey.X, priv.PrivateKey.P)
-	return a.Cmp(priv.PrivateKey.Y) == 0
-}
-
-func getU8(in []byte) (uint8, []byte, bool) {
-	if len(in) < 1 {
-		return 0, in, false
-	}
-	return in[0], in[1:], true
-}
-
-func getU16(in []byte) (uint16, []byte, bool) {
-	if len(in) < 2 {
-		return 0, in, false
-	}
-	r := uint16(in[0])<<8 | uint16(in[1])
-	return r, in[2:], true
-}
-
-func getU32(in []byte) (uint32, []byte, bool) {
-	if len(in) < 4 {
-		return 0, in, false
-	}
-	r := uint32(in[0])<<24 | uint32(in[1])<<16 | uint32(in[2])<<8 | uint32(in[3])
-	return r, in[4:], true
-}
-
-func getMPI(in []byte) (*big.Int, []byte, bool) {
-	l, in, ok := getU32(in)
-	if !ok || uint32(len(in)) < l {
-		return nil, in, false
-	}
-	r := new(big.Int).SetBytes(in[:l])
-	return r, in[l:], true
-}
-
-func getData(in []byte) ([]byte, []byte, bool) {
-	l, in, ok := getU32(in)
-	if !ok || uint32(len(in)) < l {
-		return nil, in, false
-	}
-	return in[:l], in[l:], true
-}
-
-func getNBytes(in []byte, n int) ([]byte, []byte, bool) {
-	if len(in) < n {
-		return nil, in, false
-	}
-	return in[:n], in[n:], true
-}
-
-func appendU16(out []byte, v uint16) []byte {
-	out = append(out, byte(v>>8), byte(v))
-	return out
-}
-
-func appendU32(out []byte, v uint32) []byte {
-	out = append(out, byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
-	return out
-}
-
-func appendData(out, v []byte) []byte {
-	out = appendU32(out, uint32(len(v)))
-	out = append(out, v...)
-	return out
-}
-
-func appendMPI(out []byte, v *big.Int) []byte {
-	vBytes := v.Bytes()
-	out = appendU32(out, uint32(len(vBytes)))
-	out = append(out, vBytes...)
-	return out
-}
-
-func appendMPIs(out []byte, mpis ...*big.Int) []byte {
-	for _, mpi := range mpis {
-		out = appendMPI(out, mpi)
-	}
-	return out
-}
-
-func zero(b []byte) {
-	for i := range b {
-		b[i] = 0
-	}
-}

libnetwork/vendor/golang.org/x/crypto/otr/smp.go

@@ -1,572 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file implements the Socialist Millionaires Protocol as described in
-// http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html. The protocol
-// specification is required in order to understand this code and, where
-// possible, the variable names in the code match up with the spec.
-
-package otr
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"errors"
-	"hash"
-	"math/big"
-)
-
-type smpFailure string
-
-func (s smpFailure) Error() string {
-	return string(s)
-}
-
-var smpFailureError = smpFailure("otr: SMP protocol failed")
-var smpSecretMissingError = smpFailure("otr: mutual secret needed")
-
-const smpVersion = 1
-
-const (
-	smpState1 = iota
-	smpState2
-	smpState3
-	smpState4
-)
-
-type smpState struct {
-	state                  int
-	a2, a3, b2, b3, pb, qb *big.Int
-	g2a, g3a               *big.Int
-	g2, g3                 *big.Int
-	g3b, papb, qaqb, ra    *big.Int
-	saved                  *tlv
-	secret                 *big.Int
-	question               string
-}
-
-func (c *Conversation) startSMP(question string) (tlvs []tlv) {
-	if c.smp.state != smpState1 {
-		tlvs = append(tlvs, c.generateSMPAbort())
-	}
-	tlvs = append(tlvs, c.generateSMP1(question))
-	c.smp.question = ""
-	c.smp.state = smpState2
-	return
-}
-
-func (c *Conversation) resetSMP() {
-	c.smp.state = smpState1
-	c.smp.secret = nil
-	c.smp.question = ""
-}
-
-func (c *Conversation) processSMP(in tlv) (out tlv, complete bool, err error) {
-	data := in.data
-
-	switch in.typ {
-	case tlvTypeSMPAbort:
-		if c.smp.state != smpState1 {
-			err = smpFailureError
-		}
-		c.resetSMP()
-		return
-	case tlvTypeSMP1WithQuestion:
-		// We preprocess this into a SMP1 message.
-		nulPos := bytes.IndexByte(data, 0)
-		if nulPos == -1 {
-			err = errors.New("otr: SMP message with question didn't contain a NUL byte")
-			return
-		}
-		c.smp.question = string(data[:nulPos])
-		data = data[nulPos+1:]
-	}
-
-	numMPIs, data, ok := getU32(data)
-	if !ok || numMPIs > 20 {
-		err = errors.New("otr: corrupt SMP message")
-		return
-	}
-
-	mpis := make([]*big.Int, numMPIs)
-	for i := range mpis {
-		var ok bool
-		mpis[i], data, ok = getMPI(data)
-		if !ok {
-			err = errors.New("otr: corrupt SMP message")
-			return
-		}
-	}
-
-	switch in.typ {
-	case tlvTypeSMP1, tlvTypeSMP1WithQuestion:
-		if c.smp.state != smpState1 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if c.smp.secret == nil {
-			err = smpSecretMissingError
-			return
-		}
-		if err = c.processSMP1(mpis); err != nil {
-			return
-		}
-		c.smp.state = smpState3
-		out = c.generateSMP2()
-	case tlvTypeSMP2:
-		if c.smp.state != smpState2 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if out, err = c.processSMP2(mpis); err != nil {
-			out = c.generateSMPAbort()
-			return
-		}
-		c.smp.state = smpState4
-	case tlvTypeSMP3:
-		if c.smp.state != smpState3 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if out, err = c.processSMP3(mpis); err != nil {
-			return
-		}
-		c.smp.state = smpState1
-		c.smp.secret = nil
-		complete = true
-	case tlvTypeSMP4:
-		if c.smp.state != smpState4 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if err = c.processSMP4(mpis); err != nil {
-			out = c.generateSMPAbort()
-			return
-		}
-		c.smp.state = smpState1
-		c.smp.secret = nil
-		complete = true
-	default:
-		panic("unknown SMP message")
-	}
-
-	return
-}
-
-func (c *Conversation) calcSMPSecret(mutualSecret []byte, weStarted bool) {
-	h := sha256.New()
-	h.Write([]byte{smpVersion})
-	if weStarted {
-		h.Write(c.PrivateKey.PublicKey.Fingerprint())
-		h.Write(c.TheirPublicKey.Fingerprint())
-	} else {
-		h.Write(c.TheirPublicKey.Fingerprint())
-		h.Write(c.PrivateKey.PublicKey.Fingerprint())
-	}
-	h.Write(c.SSID[:])
-	h.Write(mutualSecret)
-	c.smp.secret = new(big.Int).SetBytes(h.Sum(nil))
-}
-
-func (c *Conversation) generateSMP1(question string) tlv {
-	var randBuf [16]byte
-	c.smp.a2 = c.randMPI(randBuf[:])
-	c.smp.a3 = c.randMPI(randBuf[:])
-	g2a := new(big.Int).Exp(g, c.smp.a2, p)
-	g3a := new(big.Int).Exp(g, c.smp.a3, p)
-	h := sha256.New()
-
-	r2 := c.randMPI(randBuf[:])
-	r := new(big.Int).Exp(g, r2, p)
-	c2 := new(big.Int).SetBytes(hashMPIs(h, 1, r))
-	d2 := new(big.Int).Mul(c.smp.a2, c2)
-	d2.Sub(r2, d2)
-	d2.Mod(d2, q)
-	if d2.Sign() < 0 {
-		d2.Add(d2, q)
-	}
-
-	r3 := c.randMPI(randBuf[:])
-	r.Exp(g, r3, p)
-	c3 := new(big.Int).SetBytes(hashMPIs(h, 2, r))
-	d3 := new(big.Int).Mul(c.smp.a3, c3)
-	d3.Sub(r3, d3)
-	d3.Mod(d3, q)
-	if d3.Sign() < 0 {
-		d3.Add(d3, q)
-	}
-
-	var ret tlv
-	if len(question) > 0 {
-		ret.typ = tlvTypeSMP1WithQuestion
-		ret.data = append(ret.data, question...)
-		ret.data = append(ret.data, 0)
-	} else {
-		ret.typ = tlvTypeSMP1
-	}
-	ret.data = appendU32(ret.data, 6)
-	ret.data = appendMPIs(ret.data, g2a, c2, d2, g3a, c3, d3)
-	return ret
-}
-
-func (c *Conversation) processSMP1(mpis []*big.Int) error {
-	if len(mpis) != 6 {
-		return errors.New("otr: incorrect number of arguments in SMP1 message")
-	}
-	g2a := mpis[0]
-	c2 := mpis[1]
-	d2 := mpis[2]
-	g3a := mpis[3]
-	c3 := mpis[4]
-	d3 := mpis[5]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d2, p)
-	s := new(big.Int).Exp(g2a, c2, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	t := new(big.Int).SetBytes(hashMPIs(h, 1, r))
-	if c2.Cmp(t) != 0 {
-		return errors.New("otr: ZKP c2 incorrect in SMP1 message")
-	}
-	r.Exp(g, d3, p)
-	s.Exp(g3a, c3, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	t.SetBytes(hashMPIs(h, 2, r))
-	if c3.Cmp(t) != 0 {
-		return errors.New("otr: ZKP c3 incorrect in SMP1 message")
-	}
-
-	c.smp.g2a = g2a
-	c.smp.g3a = g3a
-	return nil
-}
-
-func (c *Conversation) generateSMP2() tlv {
-	var randBuf [16]byte
-	b2 := c.randMPI(randBuf[:])
-	c.smp.b3 = c.randMPI(randBuf[:])
-	r2 := c.randMPI(randBuf[:])
-	r3 := c.randMPI(randBuf[:])
-	r4 := c.randMPI(randBuf[:])
-	r5 := c.randMPI(randBuf[:])
-	r6 := c.randMPI(randBuf[:])
-
-	g2b := new(big.Int).Exp(g, b2, p)
-	g3b := new(big.Int).Exp(g, c.smp.b3, p)
-
-	r := new(big.Int).Exp(g, r2, p)
-	h := sha256.New()
-	c2 := new(big.Int).SetBytes(hashMPIs(h, 3, r))
-	d2 := new(big.Int).Mul(b2, c2)
-	d2.Sub(r2, d2)
-	d2.Mod(d2, q)
-	if d2.Sign() < 0 {
-		d2.Add(d2, q)
-	}
-
-	r.Exp(g, r3, p)
-	c3 := new(big.Int).SetBytes(hashMPIs(h, 4, r))
-	d3 := new(big.Int).Mul(c.smp.b3, c3)
-	d3.Sub(r3, d3)
-	d3.Mod(d3, q)
-	if d3.Sign() < 0 {
-		d3.Add(d3, q)
-	}
-
-	c.smp.g2 = new(big.Int).Exp(c.smp.g2a, b2, p)
-	c.smp.g3 = new(big.Int).Exp(c.smp.g3a, c.smp.b3, p)
-	c.smp.pb = new(big.Int).Exp(c.smp.g3, r4, p)
-	c.smp.qb = new(big.Int).Exp(g, r4, p)
-	r.Exp(c.smp.g2, c.smp.secret, p)
-	c.smp.qb.Mul(c.smp.qb, r)
-	c.smp.qb.Mod(c.smp.qb, p)
-
-	s := new(big.Int)
-	s.Exp(c.smp.g2, r6, p)
-	r.Exp(g, r5, p)
-	s.Mul(r, s)
-	s.Mod(s, p)
-	r.Exp(c.smp.g3, r5, p)
-	cp := new(big.Int).SetBytes(hashMPIs(h, 5, r, s))
-
-	// D5 = r5 - r4 cP mod q and D6 = r6 - y cP mod q
-
-	s.Mul(r4, cp)
-	r.Sub(r5, s)
-	d5 := new(big.Int).Mod(r, q)
-	if d5.Sign() < 0 {
-		d5.Add(d5, q)
-	}
-
-	s.Mul(c.smp.secret, cp)
-	r.Sub(r6, s)
-	d6 := new(big.Int).Mod(r, q)
-	if d6.Sign() < 0 {
-		d6.Add(d6, q)
-	}
-
-	var ret tlv
-	ret.typ = tlvTypeSMP2
-	ret.data = appendU32(ret.data, 11)
-	ret.data = appendMPIs(ret.data, g2b, c2, d2, g3b, c3, d3, c.smp.pb, c.smp.qb, cp, d5, d6)
-	return ret
-}
-
-func (c *Conversation) processSMP2(mpis []*big.Int) (out tlv, err error) {
-	if len(mpis) != 11 {
-		err = errors.New("otr: incorrect number of arguments in SMP2 message")
-		return
-	}
-	g2b := mpis[0]
-	c2 := mpis[1]
-	d2 := mpis[2]
-	g3b := mpis[3]
-	c3 := mpis[4]
-	d3 := mpis[5]
-	pb := mpis[6]
-	qb := mpis[7]
-	cp := mpis[8]
-	d5 := mpis[9]
-	d6 := mpis[10]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d2, p)
-	s := new(big.Int).Exp(g2b, c2, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	s.SetBytes(hashMPIs(h, 3, r))
-	if c2.Cmp(s) != 0 {
-		err = errors.New("otr: ZKP c2 failed in SMP2 message")
-		return
-	}
-
-	r.Exp(g, d3, p)
-	s.Exp(g3b, c3, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	s.SetBytes(hashMPIs(h, 4, r))
-	if c3.Cmp(s) != 0 {
-		err = errors.New("otr: ZKP c3 failed in SMP2 message")
-		return
-	}
-
-	c.smp.g2 = new(big.Int).Exp(g2b, c.smp.a2, p)
-	c.smp.g3 = new(big.Int).Exp(g3b, c.smp.a3, p)
-
-	r.Exp(g, d5, p)
-	s.Exp(c.smp.g2, d6, p)
-	r.Mul(r, s)
-	s.Exp(qb, cp, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, d5, p)
-	t := new(big.Int).Exp(pb, cp, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 5, s, r))
-	if cp.Cmp(t) != 0 {
-		err = errors.New("otr: ZKP cP failed in SMP2 message")
-		return
-	}
-
-	var randBuf [16]byte
-	r4 := c.randMPI(randBuf[:])
-	r5 := c.randMPI(randBuf[:])
-	r6 := c.randMPI(randBuf[:])
-	r7 := c.randMPI(randBuf[:])
-
-	pa := new(big.Int).Exp(c.smp.g3, r4, p)
-	r.Exp(c.smp.g2, c.smp.secret, p)
-	qa := new(big.Int).Exp(g, r4, p)
-	qa.Mul(qa, r)
-	qa.Mod(qa, p)
-
-	r.Exp(g, r5, p)
-	s.Exp(c.smp.g2, r6, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, r5, p)
-	cp.SetBytes(hashMPIs(h, 6, s, r))
-
-	r.Mul(r4, cp)
-	d5 = new(big.Int).Sub(r5, r)
-	d5.Mod(d5, q)
-	if d5.Sign() < 0 {
-		d5.Add(d5, q)
-	}
-
-	r.Mul(c.smp.secret, cp)
-	d6 = new(big.Int).Sub(r6, r)
-	d6.Mod(d6, q)
-	if d6.Sign() < 0 {
-		d6.Add(d6, q)
-	}
-
-	r.ModInverse(qb, p)
-	qaqb := new(big.Int).Mul(qa, r)
-	qaqb.Mod(qaqb, p)
-
-	ra := new(big.Int).Exp(qaqb, c.smp.a3, p)
-	r.Exp(qaqb, r7, p)
-	s.Exp(g, r7, p)
-	cr := new(big.Int).SetBytes(hashMPIs(h, 7, s, r))
-
-	r.Mul(c.smp.a3, cr)
-	d7 := new(big.Int).Sub(r7, r)
-	d7.Mod(d7, q)
-	if d7.Sign() < 0 {
-		d7.Add(d7, q)
-	}
-
-	c.smp.g3b = g3b
-	c.smp.qaqb = qaqb
-
-	r.ModInverse(pb, p)
-	c.smp.papb = new(big.Int).Mul(pa, r)
-	c.smp.papb.Mod(c.smp.papb, p)
-	c.smp.ra = ra
-
-	out.typ = tlvTypeSMP3
-	out.data = appendU32(out.data, 8)
-	out.data = appendMPIs(out.data, pa, qa, cp, d5, d6, ra, cr, d7)
-	return
-}
-
-func (c *Conversation) processSMP3(mpis []*big.Int) (out tlv, err error) {
-	if len(mpis) != 8 {
-		err = errors.New("otr: incorrect number of arguments in SMP3 message")
-		return
-	}
-	pa := mpis[0]
-	qa := mpis[1]
-	cp := mpis[2]
-	d5 := mpis[3]
-	d6 := mpis[4]
-	ra := mpis[5]
-	cr := mpis[6]
-	d7 := mpis[7]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d5, p)
-	s := new(big.Int).Exp(c.smp.g2, d6, p)
-	r.Mul(r, s)
-	s.Exp(qa, cp, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, d5, p)
-	t := new(big.Int).Exp(pa, cp, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 6, s, r))
-	if t.Cmp(cp) != 0 {
-		err = errors.New("otr: ZKP cP failed in SMP3 message")
-		return
-	}
-
-	r.ModInverse(c.smp.qb, p)
-	qaqb := new(big.Int).Mul(qa, r)
-	qaqb.Mod(qaqb, p)
-
-	r.Exp(qaqb, d7, p)
-	s.Exp(ra, cr, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(g, d7, p)
-	t.Exp(c.smp.g3a, cr, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 7, s, r))
-	if t.Cmp(cr) != 0 {
-		err = errors.New("otr: ZKP cR failed in SMP3 message")
-		return
-	}
-
-	var randBuf [16]byte
-	r7 := c.randMPI(randBuf[:])
-	rb := new(big.Int).Exp(qaqb, c.smp.b3, p)
-
-	r.Exp(qaqb, r7, p)
-	s.Exp(g, r7, p)
-	cr = new(big.Int).SetBytes(hashMPIs(h, 8, s, r))
-
-	r.Mul(c.smp.b3, cr)
-	d7 = new(big.Int).Sub(r7, r)
-	d7.Mod(d7, q)
-	if d7.Sign() < 0 {
-		d7.Add(d7, q)
-	}
-
-	out.typ = tlvTypeSMP4
-	out.data = appendU32(out.data, 3)
-	out.data = appendMPIs(out.data, rb, cr, d7)
-
-	r.ModInverse(c.smp.pb, p)
-	r.Mul(pa, r)
-	r.Mod(r, p)
-	s.Exp(ra, c.smp.b3, p)
-	if r.Cmp(s) != 0 {
-		err = smpFailureError
-	}
-
-	return
-}
-
-func (c *Conversation) processSMP4(mpis []*big.Int) error {
-	if len(mpis) != 3 {
-		return errors.New("otr: incorrect number of arguments in SMP4 message")
-	}
-	rb := mpis[0]
-	cr := mpis[1]
-	d7 := mpis[2]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(c.smp.qaqb, d7, p)
-	s := new(big.Int).Exp(rb, cr, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(g, d7, p)
-	t := new(big.Int).Exp(c.smp.g3b, cr, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 8, s, r))
-	if t.Cmp(cr) != 0 {
-		return errors.New("otr: ZKP cR failed in SMP4 message")
-	}
-
-	r.Exp(rb, c.smp.a3, p)
-	if r.Cmp(c.smp.papb) != 0 {
-		return smpFailureError
-	}
-
-	return nil
-}
-
-func (c *Conversation) generateSMPAbort() tlv {
-	return tlv{typ: tlvTypeSMPAbort}
-}
-
-func hashMPIs(h hash.Hash, magic byte, mpis ...*big.Int) []byte {
-	if h != nil {
-		h.Reset()
-	} else {
-		h = sha256.New()
-	}
-
-	h.Write([]byte{magic})
-	for _, mpi := range mpis {
-		h.Write(appendMPI(nil, mpi))
-	}
-	return h.Sum(nil)
-}

libnetwork/vendor/golang.org/x/crypto/ssh/test/doc.go

@@ -1,7 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package test contains integration tests for the
-// golang.org/x/crypto/ssh package.
-package test // import "golang.org/x/crypto/ssh/test"

libnetwork/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c

@@ -1,173 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// sshd_test_pw.c
-// Wrapper to inject test password data for sshd PAM authentication
-//
-// This wrapper implements custom versions of getpwnam, getpwnam_r,
-// getspnam and getspnam_r. These functions first call their real
-// libc versions, then check if the requested user matches test user
-// specified in env variable TEST_USER and if so replace the password
-// with crypted() value of TEST_PASSWD env variable.
-//
-// Compile:
-// gcc -Wall -shared -o sshd_test_pw.so -fPIC sshd_test_pw.c
-//
-// Compile with debug:
-// gcc -DVERBOSE -Wall -shared -o sshd_test_pw.so -fPIC sshd_test_pw.c
-//
-// Run sshd:
-// LD_PRELOAD="sshd_test_pw.so" TEST_USER="..." TEST_PASSWD="..." sshd ...
-
-// +build ignore
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <pwd.h>
-#include <shadow.h>
-#include <dlfcn.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-
-#ifdef VERBOSE
-#define DEBUG(X...) fprintf(stderr, X)
-#else
-#define DEBUG(X...) while (0) { }
-#endif
-
-/* crypt() password */
-static char *
-pwhash(char *passwd) {
-  return strdup(crypt(passwd, "$6$"));
-}
-
-/* Pointers to real functions in libc */
-static struct passwd * (*real_getpwnam)(const char *) = NULL;
-static int (*real_getpwnam_r)(const char *, struct passwd *, char *, size_t, struct passwd **) = NULL;
-static struct spwd * (*real_getspnam)(const char *) = NULL;
-static int (*real_getspnam_r)(const char *, struct spwd *, char *, size_t, struct spwd **) = NULL;
-
-/* Cached test user and test password */
-static char *test_user = NULL;
-static char *test_passwd_hash = NULL;
-
-static void
-init(void) {
-  /* Fetch real libc function pointers */
-  real_getpwnam = dlsym(RTLD_NEXT, "getpwnam");
-  real_getpwnam_r = dlsym(RTLD_NEXT, "getpwnam_r");
-  real_getspnam = dlsym(RTLD_NEXT, "getspnam");
-  real_getspnam_r = dlsym(RTLD_NEXT, "getspnam_r");
-  
-  /* abort if env variables are not defined */
-  if (getenv("TEST_USER") == NULL || getenv("TEST_PASSWD") == NULL) {
-    fprintf(stderr, "env variables TEST_USER and TEST_PASSWD are missing\n");
-    abort();
-  }
-
-  /* Fetch test user and test password from env */
-  test_user = strdup(getenv("TEST_USER"));
-  test_passwd_hash = pwhash(getenv("TEST_PASSWD"));
-
-  DEBUG("sshd_test_pw init():\n");
-  DEBUG("\treal_getpwnam: %p\n", real_getpwnam);
-  DEBUG("\treal_getpwnam_r: %p\n", real_getpwnam_r);
-  DEBUG("\treal_getspnam: %p\n", real_getspnam);
-  DEBUG("\treal_getspnam_r: %p\n", real_getspnam_r);
-  DEBUG("\tTEST_USER: '%s'\n", test_user);
-  DEBUG("\tTEST_PASSWD: '%s'\n", getenv("TEST_PASSWD"));
-  DEBUG("\tTEST_PASSWD_HASH: '%s'\n", test_passwd_hash);
-}
-
-static int
-is_test_user(const char *name) {
-  if (test_user != NULL && strcmp(test_user, name) == 0)
-    return 1;
-  return 0;
-}
-
-/* getpwnam */
-
-struct passwd *
-getpwnam(const char *name) {
-  struct passwd *pw;
-
-  DEBUG("sshd_test_pw getpwnam(%s)\n", name);
-  
-  if (real_getpwnam == NULL)
-    init();
-  if ((pw = real_getpwnam(name)) == NULL)
-    return NULL;
-
-  if (is_test_user(name))
-    pw->pw_passwd = strdup(test_passwd_hash);
-      
-  return pw;
-}
-
-/* getpwnam_r */
-
-int
-getpwnam_r(const char *name,
-	   struct passwd *pwd,
-	   char *buf,
-	   size_t buflen,
-	   struct passwd **result) {
-  int r;
-
-  DEBUG("sshd_test_pw getpwnam_r(%s)\n", name);
-  
-  if (real_getpwnam_r == NULL)
-    init();
-  if ((r = real_getpwnam_r(name, pwd, buf, buflen, result)) != 0 || *result == NULL)
-    return r;
-
-  if (is_test_user(name))
-    pwd->pw_passwd = strdup(test_passwd_hash);
-  
-  return 0;
-}
-
-/* getspnam */
-
-struct spwd *
-getspnam(const char *name) {
-  struct spwd *sp;
-
-  DEBUG("sshd_test_pw getspnam(%s)\n", name);
-  
-  if (real_getspnam == NULL)
-    init();
-  if ((sp = real_getspnam(name)) == NULL)
-    return NULL;
-
-  if (is_test_user(name))
-    sp->sp_pwdp = strdup(test_passwd_hash);
-  
-  return sp;
-}
-
-/* getspnam_r */
-
-int
-getspnam_r(const char *name,
-	   struct spwd *spbuf,
-	   char *buf,
-	   size_t buflen,
-	   struct spwd **spbufp) {
-  int r;
-
-  DEBUG("sshd_test_pw getspnam_r(%s)\n", name);
-  
-  if (real_getspnam_r == NULL)
-    init();
-  if ((r = real_getspnam_r(name, spbuf, buf, buflen, spbufp)) != 0)
-    return r;
-
-  if (is_test_user(name))
-    spbuf->sp_pwdp = strdup(test_passwd_hash);
-  
-  return r;
-}

libnetwork/vendor/golang.org/x/net/internal/socket/sys_linux_386.s

@@ -0,0 +1,11 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+TEXT	·socketcall(SB),NOSPLIT,$0-36
+	JMP	syscall·socketcall(SB)
+
+TEXT	·rawsocketcall(SB),NOSPLIT,$0-36
+	JMP	syscall·rawsocketcall(SB)

libnetwork/vendor/golang.org/x/sys/windows/svc/event.go

@@ -1,48 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-package svc
-
-import (
-	"errors"
-
-	"golang.org/x/sys/windows"
-)
-
-// event represents auto-reset, initially non-signaled Windows event.
-// It is used to communicate between go and asm parts of this package.
-type event struct {
-	h windows.Handle
-}
-
-func newEvent() (*event, error) {
-	h, err := windows.CreateEvent(nil, 0, 0, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &event{h: h}, nil
-}
-
-func (e *event) Close() error {
-	return windows.CloseHandle(e.h)
-}
-
-func (e *event) Set() error {
-	return windows.SetEvent(e.h)
-}
-
-func (e *event) Wait() error {
-	s, err := windows.WaitForSingleObject(e.h, windows.INFINITE)
-	switch s {
-	case windows.WAIT_OBJECT_0:
-		break
-	case windows.WAIT_FAILED:
-		return err
-	default:
-		return errors.New("unexpected result from WaitForSingleObject")
-	}
-	return nil
-}

libnetwork/vendor/golang.org/x/sys/windows/svc/go12.c

@@ -1,24 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build !go1.3
-
-// copied from pkg/runtime
-typedef	unsigned int	uint32;
-typedef	unsigned long long int	uint64;
-#ifdef _64BIT
-typedef	uint64		uintptr;
-#else
-typedef	uint32		uintptr;
-#endif
-
-// from sys_386.s or sys_amd64.s
-void ·servicemain(void);
-
-void
-·getServiceMain(uintptr *r)
-{
-	*r = (uintptr)·servicemain;
-}

libnetwork/vendor/golang.org/x/sys/windows/svc/go12.go

@@ -1,11 +0,0 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build !go1.3
-
-package svc
-
-// from go12.c
-func getServiceMain(r *uintptr)

libnetwork/vendor/golang.org/x/sys/windows/svc/go13.go

@@ -1,31 +0,0 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build go1.3
-
-package svc
-
-import "unsafe"
-
-const ptrSize = 4 << (^uintptr(0) >> 63) // unsafe.Sizeof(uintptr(0)) but an ideal const
-
-// Should be a built-in for unsafe.Pointer?
-func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(p) + x)
-}
-
-// funcPC returns the entry PC of the function f.
-// It assumes that f is a func value. Otherwise the behavior is undefined.
-func funcPC(f interface{}) uintptr {
-	return **(**uintptr)(add(unsafe.Pointer(&f), ptrSize))
-}
-
-// from sys_386.s and sys_amd64.s
-func servicectlhandler(ctl uint32) uintptr
-func servicemain(argc uint32, argv **uint16)
-
-func getServiceMain(r *uintptr) {
-	*r = funcPC(servicemain)
-}

libnetwork/vendor/golang.org/x/sys/windows/svc/security.go

@@ -1,62 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-package svc
-
-import (
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-func allocSid(subAuth0 uint32) (*windows.SID, error) {
-	var sid *windows.SID
-	err := windows.AllocateAndInitializeSid(&windows.SECURITY_NT_AUTHORITY,
-		1, subAuth0, 0, 0, 0, 0, 0, 0, 0, &sid)
-	if err != nil {
-		return nil, err
-	}
-	return sid, nil
-}
-
-// IsAnInteractiveSession determines if calling process is running interactively.
-// It queries the process token for membership in the Interactive group.
-// http://stackoverflow.com/questions/2668851/how-do-i-detect-that-my-application-is-running-as-service-or-in-an-interactive-s
-func IsAnInteractiveSession() (bool, error) {
-	interSid, err := allocSid(windows.SECURITY_INTERACTIVE_RID)
-	if err != nil {
-		return false, err
-	}
-	defer windows.FreeSid(interSid)
-
-	serviceSid, err := allocSid(windows.SECURITY_SERVICE_RID)
-	if err != nil {
-		return false, err
-	}
-	defer windows.FreeSid(serviceSid)
-
-	t, err := windows.OpenCurrentProcessToken()
-	if err != nil {
-		return false, err
-	}
-	defer t.Close()
-
-	gs, err := t.GetTokenGroups()
-	if err != nil {
-		return false, err
-	}
-	p := unsafe.Pointer(&gs.Groups[0])
-	groups := (*[2 << 20]windows.SIDAndAttributes)(p)[:gs.GroupCount]
-	for _, g := range groups {
-		if windows.EqualSid(g.Sid, interSid) {
-			return true, nil
-		}
-		if windows.EqualSid(g.Sid, serviceSid) {
-			return false, nil
-		}
-	}
-	return false, nil
-}

libnetwork/vendor/golang.org/x/sys/windows/svc/service.go

@@ -1,363 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-// Package svc provides everything required to build Windows service.
-//
-package svc
-
-import (
-	"errors"
-	"runtime"
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-// State describes service execution state (Stopped, Running and so on).
-type State uint32
-
-const (
-	Stopped         = State(windows.SERVICE_STOPPED)
-	StartPending    = State(windows.SERVICE_START_PENDING)
-	StopPending     = State(windows.SERVICE_STOP_PENDING)
-	Running         = State(windows.SERVICE_RUNNING)
-	ContinuePending = State(windows.SERVICE_CONTINUE_PENDING)
-	PausePending    = State(windows.SERVICE_PAUSE_PENDING)
-	Paused          = State(windows.SERVICE_PAUSED)
-)
-
-// Cmd represents service state change request. It is sent to a service
-// by the service manager, and should be actioned upon by the service.
-type Cmd uint32
-
-const (
-	Stop                  = Cmd(windows.SERVICE_CONTROL_STOP)
-	Pause                 = Cmd(windows.SERVICE_CONTROL_PAUSE)
-	Continue              = Cmd(windows.SERVICE_CONTROL_CONTINUE)
-	Interrogate           = Cmd(windows.SERVICE_CONTROL_INTERROGATE)
-	Shutdown              = Cmd(windows.SERVICE_CONTROL_SHUTDOWN)
-	ParamChange           = Cmd(windows.SERVICE_CONTROL_PARAMCHANGE)
-	NetBindAdd            = Cmd(windows.SERVICE_CONTROL_NETBINDADD)
-	NetBindRemove         = Cmd(windows.SERVICE_CONTROL_NETBINDREMOVE)
-	NetBindEnable         = Cmd(windows.SERVICE_CONTROL_NETBINDENABLE)
-	NetBindDisable        = Cmd(windows.SERVICE_CONTROL_NETBINDDISABLE)
-	DeviceEvent           = Cmd(windows.SERVICE_CONTROL_DEVICEEVENT)
-	HardwareProfileChange = Cmd(windows.SERVICE_CONTROL_HARDWAREPROFILECHANGE)
-	PowerEvent            = Cmd(windows.SERVICE_CONTROL_POWEREVENT)
-	SessionChange         = Cmd(windows.SERVICE_CONTROL_SESSIONCHANGE)
-)
-
-// Accepted is used to describe commands accepted by the service.
-// Note that Interrogate is always accepted.
-type Accepted uint32
-
-const (
-	AcceptStop                  = Accepted(windows.SERVICE_ACCEPT_STOP)
-	AcceptShutdown              = Accepted(windows.SERVICE_ACCEPT_SHUTDOWN)
-	AcceptPauseAndContinue      = Accepted(windows.SERVICE_ACCEPT_PAUSE_CONTINUE)
-	AcceptParamChange           = Accepted(windows.SERVICE_ACCEPT_PARAMCHANGE)
-	AcceptNetBindChange         = Accepted(windows.SERVICE_ACCEPT_NETBINDCHANGE)
-	AcceptHardwareProfileChange = Accepted(windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE)
-	AcceptPowerEvent            = Accepted(windows.SERVICE_ACCEPT_POWEREVENT)
-	AcceptSessionChange         = Accepted(windows.SERVICE_ACCEPT_SESSIONCHANGE)
-)
-
-// Status combines State and Accepted commands to fully describe running service.
-type Status struct {
-	State      State
-	Accepts    Accepted
-	CheckPoint uint32 // used to report progress during a lengthy operation
-	WaitHint   uint32 // estimated time required for a pending operation, in milliseconds
-}
-
-// ChangeRequest is sent to the service Handler to request service status change.
-type ChangeRequest struct {
-	Cmd           Cmd
-	EventType     uint32
-	EventData     uintptr
-	CurrentStatus Status
-}
-
-// Handler is the interface that must be implemented to build Windows service.
-type Handler interface {
-
-	// Execute will be called by the package code at the start of
-	// the service, and the service will exit once Execute completes.
-	// Inside Execute you must read service change requests from r and
-	// act accordingly. You must keep service control manager up to date
-	// about state of your service by writing into s as required.
-	// args contains service name followed by argument strings passed
-	// to the service.
-	// You can provide service exit code in exitCode return parameter,
-	// with 0 being "no error". You can also indicate if exit code,
-	// if any, is service specific or not by using svcSpecificEC
-	// parameter.
-	Execute(args []string, r <-chan ChangeRequest, s chan<- Status) (svcSpecificEC bool, exitCode uint32)
-}
-
-var (
-	// These are used by asm code.
-	goWaitsH                       uintptr
-	cWaitsH                        uintptr
-	ssHandle                       uintptr
-	sName                          *uint16
-	sArgc                          uintptr
-	sArgv                          **uint16
-	ctlHandlerExProc               uintptr
-	cSetEvent                      uintptr
-	cWaitForSingleObject           uintptr
-	cRegisterServiceCtrlHandlerExW uintptr
-)
-
-func init() {
-	k := syscall.MustLoadDLL("kernel32.dll")
-	cSetEvent = k.MustFindProc("SetEvent").Addr()
-	cWaitForSingleObject = k.MustFindProc("WaitForSingleObject").Addr()
-	a := syscall.MustLoadDLL("advapi32.dll")
-	cRegisterServiceCtrlHandlerExW = a.MustFindProc("RegisterServiceCtrlHandlerExW").Addr()
-}
-
-// The HandlerEx prototype also has a context pointer but since we don't use
-// it at start-up time we don't have to pass it over either.
-type ctlEvent struct {
-	cmd       Cmd
-	eventType uint32
-	eventData uintptr
-	errno     uint32
-}
-
-// service provides access to windows service api.
-type service struct {
-	name    string
-	h       windows.Handle
-	cWaits  *event
-	goWaits *event
-	c       chan ctlEvent
-	handler Handler
-}
-
-func newService(name string, handler Handler) (*service, error) {
-	var s service
-	var err error
-	s.name = name
-	s.c = make(chan ctlEvent)
-	s.handler = handler
-	s.cWaits, err = newEvent()
-	if err != nil {
-		return nil, err
-	}
-	s.goWaits, err = newEvent()
-	if err != nil {
-		s.cWaits.Close()
-		return nil, err
-	}
-	return &s, nil
-}
-
-func (s *service) close() error {
-	s.cWaits.Close()
-	s.goWaits.Close()
-	return nil
-}
-
-type exitCode struct {
-	isSvcSpecific bool
-	errno         uint32
-}
-
-func (s *service) updateStatus(status *Status, ec *exitCode) error {
-	if s.h == 0 {
-		return errors.New("updateStatus with no service status handle")
-	}
-	var t windows.SERVICE_STATUS
-	t.ServiceType = windows.SERVICE_WIN32_OWN_PROCESS
-	t.CurrentState = uint32(status.State)
-	if status.Accepts&AcceptStop != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_STOP
-	}
-	if status.Accepts&AcceptShutdown != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_SHUTDOWN
-	}
-	if status.Accepts&AcceptPauseAndContinue != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_PAUSE_CONTINUE
-	}
-	if status.Accepts&AcceptParamChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_PARAMCHANGE
-	}
-	if status.Accepts&AcceptNetBindChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_NETBINDCHANGE
-	}
-	if status.Accepts&AcceptHardwareProfileChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE
-	}
-	if status.Accepts&AcceptPowerEvent != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_POWEREVENT
-	}
-	if status.Accepts&AcceptSessionChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_SESSIONCHANGE
-	}
-	if ec.errno == 0 {
-		t.Win32ExitCode = windows.NO_ERROR
-		t.ServiceSpecificExitCode = windows.NO_ERROR
-	} else if ec.isSvcSpecific {
-		t.Win32ExitCode = uint32(windows.ERROR_SERVICE_SPECIFIC_ERROR)
-		t.ServiceSpecificExitCode = ec.errno
-	} else {
-		t.Win32ExitCode = ec.errno
-		t.ServiceSpecificExitCode = windows.NO_ERROR
-	}
-	t.CheckPoint = status.CheckPoint
-	t.WaitHint = status.WaitHint
-	return windows.SetServiceStatus(s.h, &t)
-}
-
-const (
-	sysErrSetServiceStatusFailed = uint32(syscall.APPLICATION_ERROR) + iota
-	sysErrNewThreadInCallback
-)
-
-func (s *service) run() {
-	s.goWaits.Wait()
-	s.h = windows.Handle(ssHandle)
-	argv := (*[100]*int16)(unsafe.Pointer(sArgv))[:sArgc]
-	args := make([]string, len(argv))
-	for i, a := range argv {
-		args[i] = syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(a))[:])
-	}
-
-	cmdsToHandler := make(chan ChangeRequest)
-	changesFromHandler := make(chan Status)
-	exitFromHandler := make(chan exitCode)
-
-	go func() {
-		ss, errno := s.handler.Execute(args, cmdsToHandler, changesFromHandler)
-		exitFromHandler <- exitCode{ss, errno}
-	}()
-
-	status := Status{State: Stopped}
-	ec := exitCode{isSvcSpecific: true, errno: 0}
-	var outch chan ChangeRequest
-	inch := s.c
-	var cmd Cmd
-	var evtype uint32
-	var evdata uintptr
-loop:
-	for {
-		select {
-		case r := <-inch:
-			if r.errno != 0 {
-				ec.errno = r.errno
-				break loop
-			}
-			inch = nil
-			outch = cmdsToHandler
-			cmd = r.cmd
-			evtype = r.eventType
-			evdata = r.eventData
-		case outch <- ChangeRequest{cmd, evtype, evdata, status}:
-			inch = s.c
-			outch = nil
-		case c := <-changesFromHandler:
-			err := s.updateStatus(&c, &ec)
-			if err != nil {
-				// best suitable error number
-				ec.errno = sysErrSetServiceStatusFailed
-				if err2, ok := err.(syscall.Errno); ok {
-					ec.errno = uint32(err2)
-				}
-				break loop
-			}
-			status = c
-		case ec = <-exitFromHandler:
-			break loop
-		}
-	}
-
-	s.updateStatus(&Status{State: Stopped}, &ec)
-	s.cWaits.Set()
-}
-
-func newCallback(fn interface{}) (cb uintptr, err error) {
-	defer func() {
-		r := recover()
-		if r == nil {
-			return
-		}
-		cb = 0
-		switch v := r.(type) {
-		case string:
-			err = errors.New(v)
-		case error:
-			err = v
-		default:
-			err = errors.New("unexpected panic in syscall.NewCallback")
-		}
-	}()
-	return syscall.NewCallback(fn), nil
-}
-
-// BUG(brainman): There is no mechanism to run multiple services
-// inside one single executable. Perhaps, it can be overcome by
-// using RegisterServiceCtrlHandlerEx Windows api.
-
-// Run executes service name by calling appropriate handler function.
-func Run(name string, handler Handler) error {
-	runtime.LockOSThread()
-
-	tid := windows.GetCurrentThreadId()
-
-	s, err := newService(name, handler)
-	if err != nil {
-		return err
-	}
-
-	ctlHandler := func(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-		e := ctlEvent{cmd: Cmd(ctl), eventType: evtype, eventData: evdata}
-		// We assume that this callback function is running on
-		// the same thread as Run. Nowhere in MS documentation
-		// I could find statement to guarantee that. So putting
-		// check here to verify, otherwise things will go bad
-		// quickly, if ignored.
-		i := windows.GetCurrentThreadId()
-		if i != tid {
-			e.errno = sysErrNewThreadInCallback
-		}
-		s.c <- e
-		// Always return NO_ERROR (0) for now.
-		return 0
-	}
-
-	var svcmain uintptr
-	getServiceMain(&svcmain)
-	t := []windows.SERVICE_TABLE_ENTRY{
-		{syscall.StringToUTF16Ptr(s.name), svcmain},
-		{nil, 0},
-	}
-
-	goWaitsH = uintptr(s.goWaits.h)
-	cWaitsH = uintptr(s.cWaits.h)
-	sName = t[0].ServiceName
-	ctlHandlerExProc, err = newCallback(ctlHandler)
-	if err != nil {
-		return err
-	}
-
-	go s.run()
-
-	err = windows.StartServiceCtrlDispatcher(&t[0])
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// StatusHandle returns service status handle. It is safe to call this function
-// from inside the Handler.Execute because then it is guaranteed to be set.
-// This code will have to change once multiple services are possible per process.
-func StatusHandle() windows.Handle {
-	return windows.Handle(ssHandle)
-}

libnetwork/vendor/golang.org/x/sys/windows/svc/sys_386.s

@@ -1,68 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),7,$0
-	MOVL	argc+0(FP), AX
-	MOVL	AX, ·sArgc(SB)
-	MOVL	argv+4(FP), AX
-	MOVL	AX, ·sArgv(SB)
-
-	PUSHL	BP
-	PUSHL	BX
-	PUSHL	SI
-	PUSHL	DI
-
-	SUBL	$12, SP
-
-	MOVL	·sName(SB), AX
-	MOVL	AX, (SP)
-	MOVL	$·servicectlhandler(SB), AX
-	MOVL	AX, 4(SP)
-	MOVL	$0, 8(SP)
-	MOVL	·cRegisterServiceCtrlHandlerExW(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-	CMPL	AX, $0
-	JE	exit
-	MOVL	AX, ·ssHandle(SB)
-
-	MOVL	·goWaitsH(SB), AX
-	MOVL	AX, (SP)
-	MOVL	·cSetEvent(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-
-	MOVL	·cWaitsH(SB), AX
-	MOVL	AX, (SP)
-	MOVL	$-1, AX
-	MOVL	AX, 4(SP)
-	MOVL	·cWaitForSingleObject(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-
-exit:
-	ADDL	$12, SP
-
-	POPL	DI
-	POPL	SI
-	POPL	BX
-	POPL	BP
-
-	MOVL	0(SP), CX
-	ADDL	$12, SP
-	JMP	CX
-
-// I do not know why, but this seems to be the only way to call
-// ctlHandlerProc on Windows 7.
-
-// func servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-TEXT ·servicectlhandler(SB),7,$0
-	MOVL	·ctlHandlerExProc(SB), CX
-	JMP	CX

libnetwork/vendor/golang.org/x/sys/windows/svc/sys_amd64.s

@@ -1,42 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),7,$0
-	MOVL	CX, ·sArgc(SB)
-	MOVL	DX, ·sArgv(SB)
-
-	SUBQ	$32, SP		// stack for the first 4 syscall params
-
-	MOVQ	·sName(SB), CX
-	MOVQ	$·servicectlhandler(SB), DX
-	// BUG(pastarmovj): Figure out a way to pass in context in R8.
-	MOVQ	·cRegisterServiceCtrlHandlerExW(SB), AX
-	CALL	AX
-	CMPQ	AX, $0
-	JE	exit
-	MOVQ	AX, ·ssHandle(SB)
-
-	MOVQ	·goWaitsH(SB), CX
-	MOVQ	·cSetEvent(SB), AX
-	CALL	AX
-
-	MOVQ	·cWaitsH(SB), CX
-	MOVQ	$4294967295, DX
-	MOVQ	·cWaitForSingleObject(SB), AX
-	CALL	AX
-
-exit:
-	ADDQ	$32, SP
-	RET
-
-// I do not know why, but this seems to be the only way to call
-// ctlHandlerProc on Windows 7.
-
-// func ·servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-TEXT ·servicectlhandler(SB),7,$0
-	MOVQ	·ctlHandlerExProc(SB), AX
-	JMP	AX