1 // Copyright 2012 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
12 "golang.org/x/net/internal/nettest"
13 "golang.org/x/net/ipv4"
16 var packetConnMulticastSocketOptionTests = []struct {
17 net, proto, addr string
20 {"udp4", "", "224.0.0.0:0", &net.UDPAddr{IP: net.IPv4(224, 0, 0, 249)}, nil}, // see RFC 4727
21 {"ip4", ":icmp", "0.0.0.0", &net.IPAddr{IP: net.IPv4(224, 0, 0, 250)}, nil}, // see RFC 4727
23 {"udp4", "", "232.0.0.0:0", &net.UDPAddr{IP: net.IPv4(232, 0, 1, 249)}, &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1)}}, // see RFC 5771
24 {"ip4", ":icmp", "0.0.0.0", &net.IPAddr{IP: net.IPv4(232, 0, 1, 250)}, &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1)}}, // see RFC 5771
27 func TestPacketConnMulticastSocketOptions(t *testing.T) {
30 t.Skipf("not supported on %s", runtime.GOOS)
32 ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagMulticast|net.FlagLoopback)
34 t.Skipf("not available on %s", runtime.GOOS)
37 m, ok := nettest.SupportsRawIPSocket()
38 for _, tt := range packetConnMulticastSocketOptionTests {
39 if tt.net == "ip4" && !ok {
43 c, err := net.ListenPacket(tt.net+tt.proto, tt.addr)
48 p := ipv4.NewPacketConn(c)
52 testMulticastSocketOptions(t, p, ifi, tt.grp)
54 testSourceSpecificMulticastSocketOptions(t, p, ifi, tt.grp, tt.src)
59 var rawConnMulticastSocketOptionTests = []struct {
62 {&net.IPAddr{IP: net.IPv4(224, 0, 0, 250)}, nil}, // see RFC 4727
64 {&net.IPAddr{IP: net.IPv4(232, 0, 1, 250)}, &net.IPAddr{IP: net.IPv4(127, 0, 0, 1)}}, // see RFC 5771
67 func TestRawConnMulticastSocketOptions(t *testing.T) {
70 t.Skipf("not supported on %s", runtime.GOOS)
72 if m, ok := nettest.SupportsRawIPSocket(); !ok {
75 ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagMulticast|net.FlagLoopback)
77 t.Skipf("not available on %s", runtime.GOOS)
80 for _, tt := range rawConnMulticastSocketOptionTests {
81 c, err := net.ListenPacket("ip4:icmp", "0.0.0.0")
86 r, err := ipv4.NewRawConn(c)
93 testMulticastSocketOptions(t, r, ifi, tt.grp)
95 testSourceSpecificMulticastSocketOptions(t, r, ifi, tt.grp, tt.src)
100 type testIPv4MulticastConn interface {
101 MulticastTTL() (int, error)
102 SetMulticastTTL(ttl int) error
103 MulticastLoopback() (bool, error)
104 SetMulticastLoopback(bool) error
105 JoinGroup(*net.Interface, net.Addr) error
106 LeaveGroup(*net.Interface, net.Addr) error
107 JoinSourceSpecificGroup(*net.Interface, net.Addr, net.Addr) error
108 LeaveSourceSpecificGroup(*net.Interface, net.Addr, net.Addr) error
109 ExcludeSourceSpecificGroup(*net.Interface, net.Addr, net.Addr) error
110 IncludeSourceSpecificGroup(*net.Interface, net.Addr, net.Addr) error
113 func testMulticastSocketOptions(t *testing.T, c testIPv4MulticastConn, ifi *net.Interface, grp net.Addr) {
115 if err := c.SetMulticastTTL(ttl); err != nil {
119 if v, err := c.MulticastTTL(); err != nil {
123 t.Errorf("got %v; want %v", v, ttl)
127 for _, toggle := range []bool{true, false} {
128 if err := c.SetMulticastLoopback(toggle); err != nil {
132 if v, err := c.MulticastLoopback(); err != nil {
135 } else if v != toggle {
136 t.Errorf("got %v; want %v", v, toggle)
141 if err := c.JoinGroup(ifi, grp); err != nil {
145 if err := c.LeaveGroup(ifi, grp); err != nil {
151 func testSourceSpecificMulticastSocketOptions(t *testing.T, c testIPv4MulticastConn, ifi *net.Interface, grp, src net.Addr) {
152 // MCAST_JOIN_GROUP -> MCAST_BLOCK_SOURCE -> MCAST_UNBLOCK_SOURCE -> MCAST_LEAVE_GROUP
153 if err := c.JoinGroup(ifi, grp); err != nil {
157 if err := c.ExcludeSourceSpecificGroup(ifi, grp, src); err != nil {
158 switch runtime.GOOS {
159 case "freebsd", "linux":
160 default: // platforms that don't support IGMPv2/3 fail here
161 t.Logf("not supported on %s", runtime.GOOS)
167 if err := c.IncludeSourceSpecificGroup(ifi, grp, src); err != nil {
171 if err := c.LeaveGroup(ifi, grp); err != nil {
176 // MCAST_JOIN_SOURCE_GROUP -> MCAST_LEAVE_SOURCE_GROUP
177 if err := c.JoinSourceSpecificGroup(ifi, grp, src); err != nil {
181 if err := c.LeaveSourceSpecificGroup(ifi, grp, src); err != nil {
186 // MCAST_JOIN_SOURCE_GROUP -> MCAST_LEAVE_GROUP
187 if err := c.JoinSourceSpecificGroup(ifi, grp, src); err != nil {
191 if err := c.LeaveGroup(ifi, grp); err != nil {