mirror of
https://github.com/golang/go
synced 2024-11-26 00:57:56 -07:00
net: fix multicast listener tests
This CL splits multicast listener tests into two; for IPv4 and for IPv6. It also removes redundant test inputs and makes sure that assignment of multicast interface to stablize the tests. Fixes #4059. R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/7565043
This commit is contained in:
Mikio Hara
parent
297bb12809
commit
2ac799cfbc
@ -1,180 +0,0 @@
|
||||
// Copyright 2011 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 !plan9
|
||||
|
||||
package net
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"os"
|
||||
"runtime"
|
||||
"testing"
|
||||
)
|
||||
|
||||
var multicastListenerTests = []struct {
|
||||
net string
|
||||
gaddr *UDPAddr
|
||||
flags Flags
|
||||
ipv6 bool // test with underlying AF_INET6 socket
|
||||
}{
|
||||
// cf. RFC 4727: Experimental Values in IPv4, IPv6, ICMPv4, ICMPv6, UDP, and TCP Headers
|
||||
|
||||
{"udp", &UDPAddr{IP: IPv4(224, 0, 0, 254), Port: 12345}, FlagUp | FlagLoopback, false},
|
||||
{"udp", &UDPAddr{IP: IPv4(224, 0, 0, 254), Port: 12345}, 0, false},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff0e::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff0e::114"), Port: 12345}, 0, true},
|
||||
|
||||
{"udp4", &UDPAddr{IP: IPv4(224, 0, 0, 254), Port: 12345}, FlagUp | FlagLoopback, false},
|
||||
{"udp4", &UDPAddr{IP: IPv4(224, 0, 0, 254), Port: 12345}, 0, false},
|
||||
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff01::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff01::114"), Port: 12345}, 0, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff02::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff02::114"), Port: 12345}, 0, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff04::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff04::114"), Port: 12345}, 0, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff05::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff05::114"), Port: 12345}, 0, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff08::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff08::114"), Port: 12345}, 0, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff0e::114"), Port: 12345}, FlagUp | FlagLoopback, true},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff0e::114"), Port: 12345}, 0, true},
|
||||
}
|
||||
|
||||
// TestMulticastListener tests both single and double listen to a test
|
||||
// listener with same address family, same group address and same port.
|
||||
func TestMulticastListener(t *testing.T) {
|
||||
switch runtime.GOOS {
|
||||
case "netbsd", "openbsd", "plan9", "solaris", "windows":
|
||||
t.Skipf("skipping test on %q", runtime.GOOS)
|
||||
case "linux":
|
||||
if runtime.GOARCH == "arm" || runtime.GOARCH == "alpha" {
|
||||
t.Skipf("skipping test on %q/%q", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
}
|
||||
|
||||
for _, tt := range multicastListenerTests {
|
||||
if tt.ipv6 && (!*testIPv6 || !supportsIPv6 || os.Getuid() != 0) {
|
||||
continue
|
||||
}
|
||||
ifi, err := availMulticastInterface(t, tt.flags)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
c1, err := ListenMulticastUDP(tt.net, ifi, tt.gaddr)
|
||||
if err != nil {
|
||||
t.Fatalf("First ListenMulticastUDP failed: %v", err)
|
||||
}
|
||||
checkMulticastListener(t, err, c1, tt.gaddr)
|
||||
c2, err := ListenMulticastUDP(tt.net, ifi, tt.gaddr)
|
||||
if err != nil {
|
||||
t.Fatalf("Second ListenMulticastUDP failed: %v", err)
|
||||
}
|
||||
checkMulticastListener(t, err, c2, tt.gaddr)
|
||||
c2.Close()
|
||||
c1.Close()
|
||||
}
|
||||
}
|
||||
|
||||
func TestSimpleMulticastListener(t *testing.T) {
|
||||
switch runtime.GOOS {
|
||||
case "plan9":
|
||||
t.Skipf("skipping test on %q", runtime.GOOS)
|
||||
case "windows":
|
||||
if testing.Short() || !*testExternal {
|
||||
t.Skip("skipping test on windows to avoid firewall")
|
||||
}
|
||||
}
|
||||
|
||||
for _, tt := range multicastListenerTests {
|
||||
if tt.ipv6 {
|
||||
continue
|
||||
}
|
||||
tt.flags = FlagUp | FlagMulticast // for windows testing
|
||||
ifi, err := availMulticastInterface(t, tt.flags)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
c1, err := ListenMulticastUDP(tt.net, ifi, tt.gaddr)
|
||||
if err != nil {
|
||||
t.Fatalf("First ListenMulticastUDP failed: %v", err)
|
||||
}
|
||||
checkSimpleMulticastListener(t, err, c1, tt.gaddr)
|
||||
c2, err := ListenMulticastUDP(tt.net, ifi, tt.gaddr)
|
||||
if err != nil {
|
||||
t.Fatalf("Second ListenMulticastUDP failed: %v", err)
|
||||
}
|
||||
checkSimpleMulticastListener(t, err, c2, tt.gaddr)
|
||||
c2.Close()
|
||||
c1.Close()
|
||||
}
|
||||
}
|
||||
|
||||
func checkMulticastListener(t *testing.T, err error, c *UDPConn, gaddr *UDPAddr) {
|
||||
if !multicastRIBContains(t, gaddr.IP) {
|
||||
t.Errorf("%q not found in RIB", gaddr.String())
|
||||
return
|
||||
}
|
||||
la := c.LocalAddr()
|
||||
if la == nil {
|
||||
t.Error("LocalAddr failed")
|
||||
return
|
||||
}
|
||||
if a, ok := la.(*UDPAddr); !ok || a.Port == 0 {
|
||||
t.Errorf("got %v; expected a proper address with non-zero port number", la)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
func checkSimpleMulticastListener(t *testing.T, err error, c *UDPConn, gaddr *UDPAddr) {
|
||||
la := c.LocalAddr()
|
||||
if la == nil {
|
||||
t.Error("LocalAddr failed")
|
||||
return
|
||||
}
|
||||
if a, ok := la.(*UDPAddr); !ok || a.Port == 0 {
|
||||
t.Errorf("got %v; expected a proper address with non-zero port number", la)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
func availMulticastInterface(t *testing.T, flags Flags) (*Interface, error) {
|
||||
var ifi *Interface
|
||||
if flags != Flags(0) {
|
||||
ift, err := Interfaces()
|
||||
if err != nil {
|
||||
t.Fatalf("Interfaces failed: %v", err)
|
||||
}
|
||||
for _, x := range ift {
|
||||
if x.Flags&flags == flags {
|
||||
ifi = &x
|
||||
break
|
||||
}
|
||||
}
|
||||
if ifi == nil {
|
||||
return nil, errors.New("an appropriate multicast interface not found")
|
||||
}
|
||||
}
|
||||
return ifi, nil
|
||||
}
|
||||
|
||||
func multicastRIBContains(t *testing.T, ip IP) bool {
|
||||
ift, err := Interfaces()
|
||||
if err != nil {
|
||||
t.Fatalf("Interfaces failed: %v", err)
|
||||
}
|
||||
for _, ifi := range ift {
|
||||
ifmat, err := ifi.MulticastAddrs()
|
||||
if err != nil {
|
||||
t.Fatalf("MulticastAddrs failed: %v", err)
|
||||
}
|
||||
for _, ifma := range ifmat {
|
||||
if ifma.(*IPAddr).IP.Equal(ip) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
184
src/pkg/net/multicast_test.go
Normal file
184
src/pkg/net/multicast_test.go
Normal file
@ -0,0 +1,184 @@
|
||||
// Copyright 2011 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 net
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"runtime"
|
||||
"testing"
|
||||
)
|
||||
|
||||
var ipv4MulticastListenerTests = []struct {
|
||||
net string
|
||||
gaddr *UDPAddr // see RFC 4727
|
||||
}{
|
||||
{"udp", &UDPAddr{IP: IPv4(224, 0, 0, 254), Port: 12345}},
|
||||
|
||||
{"udp4", &UDPAddr{IP: IPv4(224, 0, 0, 254), Port: 12345}},
|
||||
}
|
||||
|
||||
// TestIPv4MulticastListener tests both single and double listen to a
|
||||
// test listener with same address family, same group address and same
|
||||
// port.
|
||||
func TestIPv4MulticastListener(t *testing.T) {
|
||||
switch runtime.GOOS {
|
||||
case "plan9":
|
||||
t.Skipf("skipping test on %q", runtime.GOOS)
|
||||
}
|
||||
|
||||
closer := func(cs []*UDPConn) {
|
||||
for _, c := range cs {
|
||||
if c != nil {
|
||||
c.Close()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for _, ifi := range []*Interface{loopbackInterface(), nil} {
|
||||
// Note that multicast interface assignment by system
|
||||
// is not recommended because it usually relies on
|
||||
// routing stuff for finding out an appropriate
|
||||
// nexthop containing both network and link layer
|
||||
// adjacencies.
|
||||
if ifi == nil && !*testExternal {
|
||||
continue
|
||||
}
|
||||
for _, tt := range ipv4MulticastListenerTests {
|
||||
var err error
|
||||
cs := make([]*UDPConn, 2)
|
||||
if cs[0], err = ListenMulticastUDP(tt.net, ifi, tt.gaddr); err != nil {
|
||||
t.Fatalf("First ListenMulticastUDP on %v failed: %v", ifi, err)
|
||||
}
|
||||
if err := checkMulticastListener(cs[0], tt.gaddr.IP); err != nil {
|
||||
closer(cs)
|
||||
t.Fatal(err)
|
||||
}
|
||||
if cs[1], err = ListenMulticastUDP(tt.net, ifi, tt.gaddr); err != nil {
|
||||
closer(cs)
|
||||
t.Fatalf("Second ListenMulticastUDP on %v failed: %v", ifi, err)
|
||||
}
|
||||
if err := checkMulticastListener(cs[1], tt.gaddr.IP); err != nil {
|
||||
closer(cs)
|
||||
t.Fatal(err)
|
||||
}
|
||||
closer(cs)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var ipv6MulticastListenerTests = []struct {
|
||||
net string
|
||||
gaddr *UDPAddr // see RFC 4727
|
||||
}{
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff01::114"), Port: 12345}},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff02::114"), Port: 12345}},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff04::114"), Port: 12345}},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff05::114"), Port: 12345}},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff08::114"), Port: 12345}},
|
||||
{"udp", &UDPAddr{IP: ParseIP("ff0e::114"), Port: 12345}},
|
||||
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff01::114"), Port: 12345}},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff02::114"), Port: 12345}},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff04::114"), Port: 12345}},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff05::114"), Port: 12345}},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff08::114"), Port: 12345}},
|
||||
{"udp6", &UDPAddr{IP: ParseIP("ff0e::114"), Port: 12345}},
|
||||
}
|
||||
|
||||
// TestIPv6MulticastListener tests both single and double listen to a
|
||||
// test listener with same address family, same group address and same
|
||||
// port.
|
||||
func TestIPv6MulticastListener(t *testing.T) {
|
||||
switch runtime.GOOS {
|
||||
case "plan9", "solaris", "windows":
|
||||
t.Skipf("skipping test on %q", runtime.GOOS)
|
||||
}
|
||||
if !supportsIPv6 {
|
||||
t.Skip("ipv6 is not supported")
|
||||
}
|
||||
if os.Getuid() != 0 {
|
||||
t.Skip("skipping test; must be root")
|
||||
}
|
||||
|
||||
closer := func(cs []*UDPConn) {
|
||||
for _, c := range cs {
|
||||
if c != nil {
|
||||
c.Close()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for _, ifi := range []*Interface{loopbackInterface(), nil} {
|
||||
// Note that multicast interface assignment by system
|
||||
// is not recommended because it usually relies on
|
||||
// routing stuff for finding out an appropriate
|
||||
// nexthop containing both network and link layer
|
||||
// adjacencies.
|
||||
if ifi == nil && !*testExternal {
|
||||
continue
|
||||
}
|
||||
for _, tt := range ipv6MulticastListenerTests {
|
||||
var err error
|
||||
cs := make([]*UDPConn, 2)
|
||||
if cs[0], err = ListenMulticastUDP(tt.net, ifi, tt.gaddr); err != nil {
|
||||
t.Fatalf("First ListenMulticastUDP on %v failed: %v", ifi, err)
|
||||
}
|
||||
if err := checkMulticastListener(cs[0], tt.gaddr.IP); err != nil {
|
||||
closer(cs)
|
||||
t.Fatal(err)
|
||||
}
|
||||
if cs[1], err = ListenMulticastUDP(tt.net, ifi, tt.gaddr); err != nil {
|
||||
closer(cs)
|
||||
t.Fatalf("Second ListenMulticastUDP on %v failed: %v", ifi, err)
|
||||
}
|
||||
if err := checkMulticastListener(cs[1], tt.gaddr.IP); err != nil {
|
||||
closer(cs)
|
||||
t.Fatal(err)
|
||||
}
|
||||
closer(cs)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func checkMulticastListener(c *UDPConn, ip IP) error {
|
||||
if ok, err := multicastRIBContains(ip); err != nil {
|
||||
return err
|
||||
} else if !ok {
|
||||
return fmt.Errorf("%q not found in multicast RIB", ip.String())
|
||||
}
|
||||
la := c.LocalAddr()
|
||||
if la, ok := la.(*UDPAddr); !ok || la.Port == 0 {
|
||||
return fmt.Errorf("got %v; expected a proper address with non-zero port number", la)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func multicastRIBContains(ip IP) (bool, error) {
|
||||
switch runtime.GOOS {
|
||||
case "netbsd", "openbsd", "plan9", "solaris", "windows":
|
||||
return true, nil // not implemented yet
|
||||
case "linux":
|
||||
if runtime.GOARCH == "arm" || runtime.GOARCH == "alpha" {
|
||||
return true, nil // not implemented yet
|
||||
}
|
||||
}
|
||||
ift, err := Interfaces()
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
for _, ifi := range ift {
|
||||
ifmat, err := ifi.MulticastAddrs()
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
for _, ifma := range ifmat {
|
||||
if ifma.(*IPAddr).IP.Equal(ip) {
|
||||
return true, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user