diff options
Diffstat (limited to 'vendor/golang.org/x/net/internal/nettest')
9 files changed, 339 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/internal/nettest/helper_bsd.go b/vendor/golang.org/x/net/internal/nettest/helper_bsd.go new file mode 100644 index 000000000..b2308a0e8 --- /dev/null +++ b/vendor/golang.org/x/net/internal/nettest/helper_bsd.go @@ -0,0 +1,48 @@ +// 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" +) + +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": + // See http://support.apple.com/kb/HT1633. + s, err := syscall.Sysctl("kern.osrelease") + if err != nil { + return false + } + ss := strings.Split(s, ".") + if len(ss) == 0 { + return false + } + // OS X 10.9 (Darwin 13) or above seems to do the + // right thing; preserving the packet header as it's + // needed for the checksum calcuration with pseudo + // header on loopback multicast delivery process. + // If not, you'll probably see what is the slow-acting + // kernel crash caused by lazy mbuf corruption. + // See ip6_mloopback in netinet6/ip6_output.c. + if mjver, err := strconv.Atoi(ss[0]); err != nil || mjver < 13 { + return false + } + return true + default: + return true + } +} diff --git a/vendor/golang.org/x/net/internal/nettest/helper_nobsd.go b/vendor/golang.org/x/net/internal/nettest/helper_nobsd.go new file mode 100644 index 000000000..a42b80709 --- /dev/null +++ b/vendor/golang.org/x/net/internal/nettest/helper_nobsd.go @@ -0,0 +1,11 @@ +// 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 +} diff --git a/vendor/golang.org/x/net/internal/nettest/helper_posix.go b/vendor/golang.org/x/net/internal/nettest/helper_posix.go new file mode 100644 index 000000000..963ed9965 --- /dev/null +++ b/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/vendor/golang.org/x/net/internal/nettest/helper_stub.go b/vendor/golang.org/x/net/internal/nettest/helper_stub.go new file mode 100644 index 000000000..22d493585 --- /dev/null +++ b/vendor/golang.org/x/net/internal/nettest/helper_stub.go @@ -0,0 +1,28 @@ +// 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 protocolNotSupported(err error) bool { + return false +} diff --git a/vendor/golang.org/x/net/internal/nettest/helper_unix.go b/vendor/golang.org/x/net/internal/nettest/helper_unix.go new file mode 100644 index 000000000..ed13e448b --- /dev/null +++ b/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/vendor/golang.org/x/net/internal/nettest/helper_windows.go b/vendor/golang.org/x/net/internal/nettest/helper_windows.go new file mode 100644 index 000000000..b0a6a30c4 --- /dev/null +++ b/vendor/golang.org/x/net/internal/nettest/helper_windows.go @@ -0,0 +1,38 @@ +// 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 +} diff --git a/vendor/golang.org/x/net/internal/nettest/interface.go b/vendor/golang.org/x/net/internal/nettest/interface.go new file mode 100644 index 000000000..53ae13a98 --- /dev/null +++ b/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/vendor/golang.org/x/net/internal/nettest/rlimit.go b/vendor/golang.org/x/net/internal/nettest/rlimit.go new file mode 100644 index 000000000..bb34aec0b --- /dev/null +++ b/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/vendor/golang.org/x/net/internal/nettest/stack.go b/vendor/golang.org/x/net/internal/nettest/stack.go new file mode 100644 index 000000000..86de2773d --- /dev/null +++ b/vendor/golang.org/x/net/internal/nettest/stack.go @@ -0,0 +1,49 @@ +// 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 IP testing. +package nettest // import "golang.org/x/net/internal/nettest" + +import "net" + +// SupportsIPv4 reports whether the platform supports IPv4 networking +// functionality. +func SupportsIPv4() bool { + ln, err := net.Listen("tcp4", "127.0.0.1:0") + if err != nil { + return false + } + ln.Close() + return true +} + +// SupportsIPv6 reports whether the platform supports IPv6 networking +// functionality. +func SupportsIPv6() bool { + ln, err := net.Listen("tcp6", "[::1]:0") + if err != nil { + return false + } + ln.Close() + return true +} + +// 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) +} |