diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_bsd.go b/src/vendor/golang_org/x/net/internal/nettest/helper_bsd.go new file mode 100644 index 0000000000..a6e433b58c --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/helper_bsd.go @@ -0,0 +1,53 @@ +// Copyright 2016 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 darwin dragonfly freebsd netbsd openbsd + +package nettest + +import ( + "runtime" + "strconv" + "strings" + "syscall" +) + +var darwinVersion int + +func init() { + if runtime.GOOS == "darwin" { + // See http://support.apple.com/kb/HT1633. + s, err := syscall.Sysctl("kern.osrelease") + if err != nil { + return + } + ss := strings.Split(s, ".") + if len(ss) == 0 { + return + } + darwinVersion, _ = strconv.Atoi(ss[0]) + } +} + +func supportsIPv6MulticastDeliveryOnLoopback() bool { + switch runtime.GOOS { + case "freebsd": + // See http://www.freebsd.org/cgi/query-pr.cgi?pr=180065. + // Even after the fix, it looks like the latest + // kernels don't deliver link-local scoped multicast + // packets correctly. + return false + case "darwin": + return !causesIPv6Crash() + default: + return true + } +} + +func causesIPv6Crash() bool { + // We see some kernel crash when running IPv6 with IP-level + // options on Darwin kernel version 12 or below. + // See golang.org/issues/17015. + return darwinVersion < 13 +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_nobsd.go b/src/vendor/golang_org/x/net/internal/nettest/helper_nobsd.go new file mode 100644 index 0000000000..bc7da5e0d5 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/helper_nobsd.go @@ -0,0 +1,15 @@ +// Copyright 2016 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 linux solaris + +package nettest + +func supportsIPv6MulticastDeliveryOnLoopback() bool { + return true +} + +func causesIPv6Crash() bool { + return false +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_posix.go b/src/vendor/golang_org/x/net/internal/nettest/helper_posix.go new file mode 100644 index 0000000000..963ed99655 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/helper_posix.go @@ -0,0 +1,31 @@ +// 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 darwin dragonfly freebsd linux netbsd openbsd solaris windows + +package nettest + +import ( + "os" + "syscall" +) + +func protocolNotSupported(err error) bool { + switch err := err.(type) { + case syscall.Errno: + switch err { + case syscall.EPROTONOSUPPORT, syscall.ENOPROTOOPT: + return true + } + case *os.SyscallError: + switch err := err.Err.(type) { + case syscall.Errno: + switch err { + case syscall.EPROTONOSUPPORT, syscall.ENOPROTOOPT: + return true + } + } + } + return false +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go b/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go new file mode 100644 index 0000000000..ea61b6f399 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go @@ -0,0 +1,32 @@ +// 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 nacl plan9 + +package nettest + +import ( + "fmt" + "runtime" +) + +func maxOpenFiles() int { + return defaultMaxOpenFiles +} + +func supportsRawIPSocket() (string, bool) { + return fmt.Sprintf("not supported on %s", runtime.GOOS), false +} + +func supportsIPv6MulticastDeliveryOnLoopback() bool { + return false +} + +func causesIPv6Crash() bool { + return false +} + +func protocolNotSupported(err error) bool { + return false +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_unix.go b/src/vendor/golang_org/x/net/internal/nettest/helper_unix.go new file mode 100644 index 0000000000..ed13e448b7 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/helper_unix.go @@ -0,0 +1,29 @@ +// Copyright 2015 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 darwin dragonfly freebsd linux netbsd openbsd solaris + +package nettest + +import ( + "fmt" + "os" + "runtime" + "syscall" +) + +func maxOpenFiles() int { + var rlim syscall.Rlimit + if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlim); err != nil { + return defaultMaxOpenFiles + } + return int(rlim.Cur) +} + +func supportsRawIPSocket() (string, bool) { + if os.Getuid() != 0 { + return fmt.Sprintf("must be root on %s", runtime.GOOS), false + } + return "", true +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_windows.go b/src/vendor/golang_org/x/net/internal/nettest/helper_windows.go new file mode 100644 index 0000000000..3dcb727c95 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/helper_windows.go @@ -0,0 +1,42 @@ +// Copyright 2015 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 nettest + +import ( + "fmt" + "runtime" + "syscall" +) + +func maxOpenFiles() int { + return 4 * defaultMaxOpenFiles /* actually it's 16581375 */ +} + +func supportsRawIPSocket() (string, bool) { + // From http://msdn.microsoft.com/en-us/library/windows/desktop/ms740548.aspx: + // Note: To use a socket of type SOCK_RAW requires administrative privileges. + // Users running Winsock applications that use raw sockets must be a member of + // the Administrators group on the local computer, otherwise raw socket calls + // will fail with an error code of WSAEACCES. On Windows Vista and later, access + // for raw sockets is enforced at socket creation. In earlier versions of Windows, + // access for raw sockets is enforced during other socket operations. + s, err := syscall.Socket(syscall.AF_INET, syscall.SOCK_RAW, 0) + if err == syscall.WSAEACCES { + return fmt.Sprintf("no access to raw socket allowed on %s", runtime.GOOS), false + } + if err != nil { + return err.Error(), false + } + syscall.Closesocket(s) + return "", true +} + +func supportsIPv6MulticastDeliveryOnLoopback() bool { + return true +} + +func causesIPv6Crash() bool { + return false +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/interface.go b/src/vendor/golang_org/x/net/internal/nettest/interface.go new file mode 100644 index 0000000000..8e6333afe1 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/interface.go @@ -0,0 +1,94 @@ +// 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 nettest + +import "net" + +// IsMulticastCapable reports whether ifi is an IP multicast-capable +// network interface. Network must be "ip", "ip4" or "ip6". +func IsMulticastCapable(network string, ifi *net.Interface) (net.IP, bool) { + switch network { + case "ip", "ip4", "ip6": + default: + return nil, false + } + if ifi == nil || ifi.Flags&net.FlagUp == 0 || ifi.Flags&net.FlagMulticast == 0 { + return nil, false + } + return hasRoutableIP(network, ifi) +} + +// RoutedInterface returns a network interface that can route IP +// traffic and satisfies flags. It returns nil when an appropriate +// network interface is not found. Network must be "ip", "ip4" or +// "ip6". +func RoutedInterface(network string, flags net.Flags) *net.Interface { + switch network { + case "ip", "ip4", "ip6": + default: + return nil + } + ift, err := net.Interfaces() + if err != nil { + return nil + } + for _, ifi := range ift { + if ifi.Flags&flags != flags { + continue + } + if _, ok := hasRoutableIP(network, &ifi); !ok { + continue + } + return &ifi + } + return nil +} + +func hasRoutableIP(network string, ifi *net.Interface) (net.IP, bool) { + ifat, err := ifi.Addrs() + if err != nil { + return nil, false + } + for _, ifa := range ifat { + switch ifa := ifa.(type) { + case *net.IPAddr: + if ip := routableIP(network, ifa.IP); ip != nil { + return ip, true + } + case *net.IPNet: + if ip := routableIP(network, ifa.IP); ip != nil { + return ip, true + } + } + } + return nil, false +} + +func routableIP(network string, ip net.IP) net.IP { + if !ip.IsLoopback() && !ip.IsLinkLocalUnicast() && !ip.IsGlobalUnicast() { + return nil + } + switch network { + case "ip4": + if ip := ip.To4(); ip != nil { + return ip + } + case "ip6": + if ip.IsLoopback() { // addressing scope of the loopback address depends on each implementation + return nil + } + if ip := ip.To16(); ip != nil && ip.To4() == nil { + return ip + } + default: + if ip := ip.To4(); ip != nil { + return ip + } + if ip := ip.To16(); ip != nil { + return ip + } + } + return nil +} diff --git a/src/vendor/golang_org/x/net/internal/nettest/rlimit.go b/src/vendor/golang_org/x/net/internal/nettest/rlimit.go new file mode 100644 index 0000000000..bb34aec0bb --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/rlimit.go @@ -0,0 +1,11 @@ +// Copyright 2015 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 nettest + +const defaultMaxOpenFiles = 256 + +// MaxOpenFiles returns the maximum number of open files for the +// caller's process. +func MaxOpenFiles() int { return maxOpenFiles() } diff --git a/src/vendor/golang_org/x/net/internal/nettest/stack.go b/src/vendor/golang_org/x/net/internal/nettest/stack.go new file mode 100644 index 0000000000..06f4e09ef8 --- /dev/null +++ b/src/vendor/golang_org/x/net/internal/nettest/stack.go @@ -0,0 +1,152 @@ +// 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. + +// Package nettest provides utilities for network testing. +package nettest // import "golang.org/x/net/internal/nettest" + +import ( + "fmt" + "io/ioutil" + "net" + "os" + "runtime" +) + +var ( + supportsIPv4 bool + supportsIPv6 bool +) + +func init() { + if ln, err := net.Listen("tcp4", "127.0.0.1:0"); err == nil { + ln.Close() + supportsIPv4 = true + } + if ln, err := net.Listen("tcp6", "[::1]:0"); err == nil { + ln.Close() + supportsIPv6 = true + } +} + +// SupportsIPv4 reports whether the platform supports IPv4 networking +// functionality. +func SupportsIPv4() bool { return supportsIPv4 } + +// SupportsIPv6 reports whether the platform supports IPv6 networking +// functionality. +func SupportsIPv6() bool { return supportsIPv6 } + +// SupportsRawIPSocket reports whether the platform supports raw IP +// sockets. +func SupportsRawIPSocket() (string, bool) { + return supportsRawIPSocket() +} + +// SupportsIPv6MulticastDeliveryOnLoopback reports whether the +// platform supports IPv6 multicast packet delivery on software +// loopback interface. +func SupportsIPv6MulticastDeliveryOnLoopback() bool { + return supportsIPv6MulticastDeliveryOnLoopback() +} + +// ProtocolNotSupported reports whether err is a protocol not +// supported error. +func ProtocolNotSupported(err error) bool { + return protocolNotSupported(err) +} + +// TestableNetwork reports whether network is testable on the current +// platform configuration. +func TestableNetwork(network string) bool { + // This is based on logic from standard library's + // net/platform_test.go. + switch network { + case "unix", "unixgram": + switch runtime.GOOS { + case "android", "nacl", "plan9", "windows": + return false + } + if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") { + return false + } + case "unixpacket": + switch runtime.GOOS { + case "android", "darwin", "freebsd", "nacl", "plan9", "windows": + return false + case "netbsd": + // It passes on amd64 at least. 386 fails (Issue 22927). arm is unknown. + if runtime.GOARCH == "386" { + return false + } + } + } + return true +} + +// NewLocalListener returns a listener which listens to a loopback IP +// address or local file system path. +// Network must be "tcp", "tcp4", "tcp6", "unix" or "unixpacket". +func NewLocalListener(network string) (net.Listener, error) { + switch network { + case "tcp": + if supportsIPv4 { + if ln, err := net.Listen("tcp4", "127.0.0.1:0"); err == nil { + return ln, nil + } + } + if supportsIPv6 { + return net.Listen("tcp6", "[::1]:0") + } + case "tcp4": + if supportsIPv4 { + return net.Listen("tcp4", "127.0.0.1:0") + } + case "tcp6": + if supportsIPv6 { + return net.Listen("tcp6", "[::1]:0") + } + case "unix", "unixpacket": + return net.Listen(network, localPath()) + } + return nil, fmt.Errorf("%s is not supported", network) +} + +// NewLocalPacketListener returns a packet listener which listens to a +// loopback IP address or local file system path. +// Network must be "udp", "udp4", "udp6" or "unixgram". +func NewLocalPacketListener(network string) (net.PacketConn, error) { + switch network { + case "udp": + if supportsIPv4 { + if c, err := net.ListenPacket("udp4", "127.0.0.1:0"); err == nil { + return c, nil + } + } + if supportsIPv6 { + return net.ListenPacket("udp6", "[::1]:0") + } + case "udp4": + if supportsIPv4 { + return net.ListenPacket("udp4", "127.0.0.1:0") + } + case "udp6": + if supportsIPv6 { + return net.ListenPacket("udp6", "[::1]:0") + } + case "unixgram": + return net.ListenPacket(network, localPath()) + } + return nil, fmt.Errorf("%s is not supported", network) +} + +func localPath() string { + f, err := ioutil.TempFile("", "nettest") + if err != nil { + panic(err) + } + path := f.Name() + f.Close() + os.Remove(path) + return path +} diff --git a/src/vendor/golang_org/x/net/nettest/conntest_test.go b/src/vendor/golang_org/x/net/nettest/conntest_test.go index 23bd69fc63..ae8426a05c 100644 --- a/src/vendor/golang_org/x/net/nettest/conntest_test.go +++ b/src/vendor/golang_org/x/net/nettest/conntest_test.go @@ -7,64 +7,14 @@ package nettest import ( - "fmt" - "io/ioutil" "net" "os" "runtime" "testing" + + "golang_org/x/net/internal/nettest" ) -// testUnixAddr uses ioutil.TempFile to get a name that is unique. -// It also uses /tmp directory in case it is prohibited to create UNIX -// sockets in TMPDIR. -func testUnixAddr() string { - f, err := ioutil.TempFile("", "go-nettest") - if err != nil { - panic(err) - } - addr := f.Name() - f.Close() - os.Remove(addr) - return addr -} - -// testableNetwork reports whether network is testable on the current -// platform configuration. -// This is based on logic from standard library's net/platform_test.go. -func testableNetwork(network string) bool { - switch network { - case "unix": - switch runtime.GOOS { - case "android", "nacl", "plan9", "windows": - return false - } - if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") { - return false - } - case "unixpacket": - switch runtime.GOOS { - case "android", "darwin", "nacl", "plan9", "windows", "freebsd": - return false - } - } - return true -} - -func newLocalListener(network string) (net.Listener, error) { - switch network { - case "tcp": - ln, err := net.Listen("tcp", "127.0.0.1:0") - if err != nil { - ln, err = net.Listen("tcp6", "[::1]:0") - } - return ln, err - case "unix", "unixpacket": - return net.Listen(network, testUnixAddr()) - } - return nil, fmt.Errorf("%s is not supported", network) -} - func TestTestConn(t *testing.T) { tests := []struct{ name, network string }{ {"TCP", "tcp"}, @@ -74,12 +24,12 @@ func TestTestConn(t *testing.T) { for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { - if !testableNetwork(tt.network) { + if !nettest.TestableNetwork(tt.network) { t.Skipf("not supported on %s", runtime.GOOS) } mp := func() (c1, c2 net.Conn, stop func(), err error) { - ln, err := newLocalListener(tt.network) + ln, err := nettest.NewLocalListener(tt.network) if err != nil { return nil, nil, nil, err }