diff options
Diffstat (limited to 'libgo/go/net/unicast_test.go')
| -rw-r--r-- | libgo/go/net/unicast_test.go | 523 |
1 files changed, 475 insertions, 48 deletions
diff --git a/libgo/go/net/unicast_test.go b/libgo/go/net/unicast_test.go index 297276d3a7f..e5dd013db67 100644 --- a/libgo/go/net/unicast_test.go +++ b/libgo/go/net/unicast_test.go @@ -5,83 +5,482 @@ package net import ( - "io" "runtime" + "syscall" "testing" ) -var unicastTests = []struct { - net string - laddr string - ipv6 bool - packet bool +var listenerTests = []struct { + net string + laddr string + ipv6 bool // test with underlying AF_INET6 socket + wildcard bool // test with wildcard address }{ - {net: "tcp4", laddr: "127.0.0.1:0"}, - {net: "tcp4", laddr: "previous"}, - {net: "tcp6", laddr: "[::1]:0", ipv6: true}, - {net: "tcp6", laddr: "previous", ipv6: true}, - {net: "udp4", laddr: "127.0.0.1:0", packet: true}, - {net: "udp6", laddr: "[::1]:0", ipv6: true, packet: true}, + {net: "tcp", laddr: "", wildcard: true}, + {net: "tcp", laddr: "0.0.0.0", wildcard: true}, + {net: "tcp", laddr: "[::ffff:0.0.0.0]", wildcard: true}, + {net: "tcp", laddr: "[::]", ipv6: true, wildcard: true}, + + {net: "tcp", laddr: "127.0.0.1"}, + {net: "tcp", laddr: "[::ffff:127.0.0.1]"}, + {net: "tcp", laddr: "[::1]", ipv6: true}, + + {net: "tcp4", laddr: "", wildcard: true}, + {net: "tcp4", laddr: "0.0.0.0", wildcard: true}, + {net: "tcp4", laddr: "[::ffff:0.0.0.0]", wildcard: true}, + + {net: "tcp4", laddr: "127.0.0.1"}, + {net: "tcp4", laddr: "[::ffff:127.0.0.1]"}, + + {net: "tcp6", laddr: "", ipv6: true, wildcard: true}, + {net: "tcp6", laddr: "[::]", ipv6: true, wildcard: true}, + + {net: "tcp6", laddr: "[::1]", ipv6: true}, } -func TestUnicastTCPAndUDP(t *testing.T) { - if runtime.GOOS == "plan9" || runtime.GOOS == "windows" { +// TestTCPListener tests both single and double listen to a test +// listener with same address family, same listening address and +// same port. +func TestTCPListener(t *testing.T) { + switch runtime.GOOS { + case "plan9", "windows": + t.Logf("skipping test on %q", runtime.GOOS) return } - prevladdr := "" - for _, tt := range unicastTests { + for _, tt := range listenerTests { + if tt.wildcard && (testing.Short() || !*testExternal) { + continue + } if tt.ipv6 && !supportsIPv6 { continue } - var ( - fd *netFD - closer io.Closer - ) - if !tt.packet { - if tt.laddr == "previous" { - tt.laddr = prevladdr + l1, port := usableListenPort(t, tt.net, tt.laddr) + checkFirstListener(t, tt.net, tt.laddr+":"+port, l1) + l2, err := Listen(tt.net, tt.laddr+":"+port) + checkSecondListener(t, tt.net, tt.laddr+":"+port, err, l2) + fd := l1.(*TCPListener).fd + switch fd.family { + case syscall.AF_INET: + testIPv4UnicastSocketOptions(t, fd) + case syscall.AF_INET6: + testIPv6UnicastSocketOptions(t, fd) + } + l1.Close() + } +} + +// TestUDPListener tests both single and double listen to a test +// listener with same address family, same listening address and +// same port. +func TestUDPListener(t *testing.T) { + switch runtime.GOOS { + case "plan9", "windows": + t.Logf("skipping test on %q", runtime.GOOS) + return + } + + toudpnet := func(net string) string { + switch net { + case "tcp": + return "udp" + case "tcp4": + return "udp4" + case "tcp6": + return "udp6" + } + return "<nil>" + } + + for _, tt := range listenerTests { + if tt.wildcard && (testing.Short() || !*testExternal) { + continue + } + if tt.ipv6 && !supportsIPv6 { + continue + } + tt.net = toudpnet(tt.net) + l1, port := usableListenPacketPort(t, tt.net, tt.laddr) + checkFirstListener(t, tt.net, tt.laddr+":"+port, l1) + l2, err := ListenPacket(tt.net, tt.laddr+":"+port) + checkSecondListener(t, tt.net, tt.laddr+":"+port, err, l2) + fd := l1.(*UDPConn).fd + switch fd.family { + case syscall.AF_INET: + testIPv4UnicastSocketOptions(t, fd) + case syscall.AF_INET6: + testIPv6UnicastSocketOptions(t, fd) + } + l1.Close() + } +} + +func TestSimpleTCPListener(t *testing.T) { + switch runtime.GOOS { + case "plan9": + t.Logf("skipping test on %q", runtime.GOOS) + return + } + + for _, tt := range listenerTests { + if tt.wildcard && (testing.Short() || !*testExternal) { + continue + } + if tt.ipv6 { + continue + } + l1, port := usableListenPort(t, tt.net, tt.laddr) + checkFirstListener(t, tt.net, tt.laddr+":"+port, l1) + l2, err := Listen(tt.net, tt.laddr+":"+port) + checkSecondListener(t, tt.net, tt.laddr+":"+port, err, l2) + l1.Close() + } +} + +func TestSimpleUDPListener(t *testing.T) { + switch runtime.GOOS { + case "plan9": + t.Logf("skipping test on %q", runtime.GOOS) + return + } + + toudpnet := func(net string) string { + switch net { + case "tcp": + return "udp" + case "tcp4": + return "udp4" + case "tcp6": + return "udp6" + } + return "<nil>" + } + + for _, tt := range listenerTests { + if tt.wildcard && (testing.Short() || !*testExternal) { + continue + } + if tt.ipv6 { + continue + } + tt.net = toudpnet(tt.net) + l1, port := usableListenPacketPort(t, tt.net, tt.laddr) + checkFirstListener(t, tt.net, tt.laddr+":"+port, l1) + l2, err := ListenPacket(tt.net, tt.laddr+":"+port) + checkSecondListener(t, tt.net, tt.laddr+":"+port, err, l2) + l1.Close() + } +} + +var dualStackListenerTests = []struct { + net1 string // first listener + laddr1 string + net2 string // second listener + laddr2 string + wildcard bool // test with wildcard address + xerr error // expected error value, nil or other +}{ + // Test cases and expected results for the attemping 2nd listen on the same port + // 1st listen 2nd listen darwin freebsd linux openbsd + // ------------------------------------------------------------------------------------ + // "tcp" "" "tcp" "" - - - - + // "tcp" "" "tcp" "0.0.0.0" - - - - + // "tcp" "0.0.0.0" "tcp" "" - - - - + // ------------------------------------------------------------------------------------ + // "tcp" "" "tcp" "[::]" - - - ok + // "tcp" "[::]" "tcp" "" - - - ok + // "tcp" "0.0.0.0" "tcp" "[::]" - - - ok + // "tcp" "[::]" "tcp" "0.0.0.0" - - - ok + // "tcp" "[::ffff:0.0.0.0]" "tcp" "[::]" - - - ok + // "tcp" "[::]" "tcp" "[::ffff:0.0.0.0]" - - - ok + // ------------------------------------------------------------------------------------ + // "tcp4" "" "tcp6" "" ok ok ok ok + // "tcp6" "" "tcp4" "" ok ok ok ok + // "tcp4" "0.0.0.0" "tcp6" "[::]" ok ok ok ok + // "tcp6" "[::]" "tcp4" "0.0.0.0" ok ok ok ok + // ------------------------------------------------------------------------------------ + // "tcp" "127.0.0.1" "tcp" "[::1]" ok ok ok ok + // "tcp" "[::1]" "tcp" "127.0.0.1" ok ok ok ok + // "tcp4" "127.0.0.1" "tcp6" "[::1]" ok ok ok ok + // "tcp6" "[::1]" "tcp4" "127.0.0.1" ok ok ok ok + // + // Platform default configurations: + // darwin, kernel version 11.3.0 + // net.inet6.ip6.v6only=0 (overridable by sysctl or IPV6_V6ONLY option) + // freebsd, kernel version 8.2 + // net.inet6.ip6.v6only=1 (overridable by sysctl or IPV6_V6ONLY option) + // linux, kernel version 3.0.0 + // net.ipv6.bindv6only=0 (overridable by sysctl or IPV6_V6ONLY option) + // openbsd, kernel version 5.0 + // net.inet6.ip6.v6only=1 (overriding is prohibited) + + {net1: "tcp", laddr1: "", net2: "tcp", laddr2: "", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "", net2: "tcp", laddr2: "0.0.0.0", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "0.0.0.0", net2: "tcp", laddr2: "", wildcard: true, xerr: syscall.EADDRINUSE}, + + {net1: "tcp", laddr1: "", net2: "tcp", laddr2: "[::]", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "[::]", net2: "tcp", laddr2: "", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "0.0.0.0", net2: "tcp", laddr2: "[::]", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "[::]", net2: "tcp", laddr2: "0.0.0.0", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "[::ffff:0.0.0.0]", net2: "tcp", laddr2: "[::]", wildcard: true, xerr: syscall.EADDRINUSE}, + {net1: "tcp", laddr1: "[::]", net2: "tcp", laddr2: "[::ffff:0.0.0.0]", wildcard: true, xerr: syscall.EADDRINUSE}, + + {net1: "tcp4", laddr1: "", net2: "tcp6", laddr2: "", wildcard: true}, + {net1: "tcp6", laddr1: "", net2: "tcp4", laddr2: "", wildcard: true}, + {net1: "tcp4", laddr1: "0.0.0.0", net2: "tcp6", laddr2: "[::]", wildcard: true}, + {net1: "tcp6", laddr1: "[::]", net2: "tcp4", laddr2: "0.0.0.0", wildcard: true}, + + {net1: "tcp", laddr1: "127.0.0.1", net2: "tcp", laddr2: "[::1]"}, + {net1: "tcp", laddr1: "[::1]", net2: "tcp", laddr2: "127.0.0.1"}, + {net1: "tcp4", laddr1: "127.0.0.1", net2: "tcp6", laddr2: "[::1]"}, + {net1: "tcp6", laddr1: "[::1]", net2: "tcp4", laddr2: "127.0.0.1"}, +} + +// TestDualStackTCPListener tests both single and double listen +// to a test listener with various address families, differnet +// listening address and same port. +func TestDualStackTCPListener(t *testing.T) { + switch runtime.GOOS { + case "plan9": + t.Logf("skipping test on %q", runtime.GOOS) + return + } + if !supportsIPv6 { + return + } + + for _, tt := range dualStackListenerTests { + if tt.wildcard && (testing.Short() || !*testExternal) { + continue + } + switch runtime.GOOS { + case "openbsd": + if tt.wildcard && differentWildcardAddr(tt.laddr1, tt.laddr2) { + tt.xerr = nil + } + } + l1, port := usableListenPort(t, tt.net1, tt.laddr1) + laddr := tt.laddr1 + ":" + port + checkFirstListener(t, tt.net1, laddr, l1) + laddr = tt.laddr2 + ":" + port + l2, err := Listen(tt.net2, laddr) + checkDualStackSecondListener(t, tt.net2, laddr, tt.xerr, err, l2) + l1.Close() + } +} + +// TestDualStackUDPListener tests both single and double listen +// to a test listener with various address families, differnet +// listening address and same port. +func TestDualStackUDPListener(t *testing.T) { + switch runtime.GOOS { + case "plan9": + t.Logf("skipping test on %q", runtime.GOOS) + return + } + if !supportsIPv6 { + return + } + + toudpnet := func(net string) string { + switch net { + case "tcp": + return "udp" + case "tcp4": + return "udp4" + case "tcp6": + return "udp6" + } + return "<nil>" + } + + for _, tt := range dualStackListenerTests { + if tt.wildcard && (testing.Short() || !*testExternal) { + continue + } + tt.net1 = toudpnet(tt.net1) + tt.net2 = toudpnet(tt.net2) + switch runtime.GOOS { + case "openbsd": + if tt.wildcard && differentWildcardAddr(tt.laddr1, tt.laddr2) { + tt.xerr = nil } - l, err := Listen(tt.net, tt.laddr) - if err != nil { - t.Fatalf("Listen failed: %v", err) + } + l1, port := usableListenPacketPort(t, tt.net1, tt.laddr1) + laddr := tt.laddr1 + ":" + port + checkFirstListener(t, tt.net1, laddr, l1) + laddr = tt.laddr2 + ":" + port + l2, err := ListenPacket(tt.net2, laddr) + checkDualStackSecondListener(t, tt.net2, laddr, tt.xerr, err, l2) + l1.Close() + } +} + +func usableListenPort(t *testing.T, net, laddr string) (l Listener, port string) { + var nladdr string + var err error + switch net { + default: + panic("usableListenPort net=" + net) + case "tcp", "tcp4", "tcp6": + l, err = Listen(net, laddr+":0") + if err != nil { + t.Fatalf("Probe Listen(%q, %q) failed: %v", net, laddr, err) + } + nladdr = l.(*TCPListener).Addr().String() + } + _, port, err = SplitHostPort(nladdr) + if err != nil { + t.Fatalf("SplitHostPort failed: %v", err) + } + return l, port +} + +func usableListenPacketPort(t *testing.T, net, laddr string) (l PacketConn, port string) { + var nladdr string + var err error + switch net { + default: + panic("usableListenPacketPort net=" + net) + case "udp", "udp4", "udp6": + l, err = ListenPacket(net, laddr+":0") + if err != nil { + t.Fatalf("Probe ListenPacket(%q, %q) failed: %v", net, laddr, err) + } + nladdr = l.(*UDPConn).LocalAddr().String() + } + _, port, err = SplitHostPort(nladdr) + if err != nil { + t.Fatalf("SplitHostPort failed: %v", err) + } + return l, port +} + +func differentWildcardAddr(i, j string) bool { + if (i == "" || i == "0.0.0.0" || i == "::ffff:0.0.0.0") && (j == "" || j == "0.0.0.0" || j == "::ffff:0.0.0.0") { + return false + } + if i == "[::]" && j == "[::]" { + return false + } + return true +} + +func checkFirstListener(t *testing.T, net, laddr string, l interface{}) { + switch net { + case "tcp": + fd := l.(*TCPListener).fd + checkDualStackAddrFamily(t, net, laddr, fd) + case "tcp4": + fd := l.(*TCPListener).fd + if fd.family != syscall.AF_INET { + t.Fatalf("First Listen(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, syscall.AF_INET) + } + case "tcp6": + fd := l.(*TCPListener).fd + if fd.family != syscall.AF_INET6 { + t.Fatalf("First Listen(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, syscall.AF_INET6) + } + case "udp": + fd := l.(*UDPConn).fd + checkDualStackAddrFamily(t, net, laddr, fd) + case "udp4": + fd := l.(*UDPConn).fd + if fd.family != syscall.AF_INET { + t.Fatalf("First ListenPacket(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, syscall.AF_INET) + } + case "udp6": + fd := l.(*UDPConn).fd + if fd.family != syscall.AF_INET6 { + t.Fatalf("First ListenPacket(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, syscall.AF_INET6) + } + default: + t.Fatalf("Unexpected network: %q", net) + } +} + +func checkSecondListener(t *testing.T, net, laddr string, err error, l interface{}) { + switch net { + case "tcp", "tcp4", "tcp6": + if err == nil { + l.(*TCPListener).Close() + t.Fatalf("Second Listen(%q, %q) should fail", net, laddr) + } + case "udp", "udp4", "udp6": + if err == nil { + l.(*UDPConn).Close() + t.Fatalf("Second ListenPacket(%q, %q) should fail", net, laddr) + } + default: + t.Fatalf("Unexpected network: %q", net) + } +} + +func checkDualStackSecondListener(t *testing.T, net, laddr string, xerr, err error, l interface{}) { + switch net { + case "tcp", "tcp4", "tcp6": + if xerr == nil && err != nil || xerr != nil && err == nil { + t.Fatalf("Second Listen(%q, %q) returns %v, expected %v", net, laddr, err, xerr) + } + l.(*TCPListener).Close() + case "udp", "udp4", "udp6": + if xerr == nil && err != nil || xerr != nil && err == nil { + t.Fatalf("Second ListenPacket(%q, %q) returns %v, expected %v", net, laddr, err, xerr) + } + l.(*UDPConn).Close() + default: + t.Fatalf("Unexpected network: %q", net) + } +} + +func checkDualStackAddrFamily(t *testing.T, net, laddr string, fd *netFD) { + switch a := fd.laddr.(type) { + case *TCPAddr: + // If a node under test supports both IPv6 capability + // and IPv6 IPv4-mapping capability, we can assume + // that the node listens on a wildcard address with an + // AF_INET6 socket. + if supportsIPv4map && fd.laddr.(*TCPAddr).isWildcard() { + if fd.family != syscall.AF_INET6 { + t.Fatalf("Listen(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, syscall.AF_INET6) } - prevladdr = l.Addr().String() - closer = l - fd = l.(*TCPListener).fd } else { - c, err := ListenPacket(tt.net, tt.laddr) - if err != nil { - t.Fatalf("ListenPacket failed: %v", err) + if fd.family != a.family() { + t.Fatalf("Listen(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, a.family()) } - closer = c - fd = c.(*UDPConn).fd } - if !tt.ipv6 { - testIPv4UnicastSocketOptions(t, fd) + case *UDPAddr: + // If a node under test supports both IPv6 capability + // and IPv6 IPv4-mapping capability, we can assume + // that the node listens on a wildcard address with an + // AF_INET6 socket. + if supportsIPv4map && fd.laddr.(*UDPAddr).isWildcard() { + if fd.family != syscall.AF_INET6 { + t.Fatalf("ListenPacket(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, syscall.AF_INET6) + } } else { - testIPv6UnicastSocketOptions(t, fd) + if fd.family != a.family() { + t.Fatalf("ListenPacket(%q, %q) returns address family %v, expected %v", net, laddr, fd.family, a.family()) + } } - closer.Close() + default: + t.Fatalf("Unexpected protocol address type: %T", a) } } func testIPv4UnicastSocketOptions(t *testing.T, fd *netFD) { - tos, err := ipv4TOS(fd) + _, err := ipv4TOS(fd) if err != nil { t.Fatalf("ipv4TOS failed: %v", err) } - t.Logf("IPv4 TOS: %v", tos) err = setIPv4TOS(fd, 1) if err != nil { t.Fatalf("setIPv4TOS failed: %v", err) } - - ttl, err := ipv4TTL(fd) + _, err = ipv4TTL(fd) if err != nil { t.Fatalf("ipv4TTL failed: %v", err) } - t.Logf("IPv4 TTL: %v", ttl) err = setIPv4TTL(fd, 1) if err != nil { t.Fatalf("setIPv4TTL failed: %v", err) @@ -89,23 +488,51 @@ func testIPv4UnicastSocketOptions(t *testing.T, fd *netFD) { } func testIPv6UnicastSocketOptions(t *testing.T, fd *netFD) { - tos, err := ipv6TrafficClass(fd) + _, err := ipv6TrafficClass(fd) if err != nil { t.Fatalf("ipv6TrafficClass failed: %v", err) } - t.Logf("IPv6 TrafficClass: %v", tos) err = setIPv6TrafficClass(fd, 1) if err != nil { t.Fatalf("setIPv6TrafficClass failed: %v", err) } - - hoplim, err := ipv6HopLimit(fd) + _, err = ipv6HopLimit(fd) if err != nil { t.Fatalf("ipv6HopLimit failed: %v", err) } - t.Logf("IPv6 HopLimit: %v", hoplim) err = setIPv6HopLimit(fd, 1) if err != nil { t.Fatalf("setIPv6HopLimit failed: %v", err) } } + +var prohibitionaryDialArgTests = []struct { + net string + addr string +}{ + {"tcp6", "127.0.0.1"}, + {"tcp6", "[::ffff:127.0.0.1]"}, +} + +func TestProhibitionaryDialArgs(t *testing.T) { + switch runtime.GOOS { + case "plan9": + t.Logf("skipping test on %q", runtime.GOOS) + return + } + // This test requires both IPv6 and IPv6 IPv4-mapping functionality. + if !supportsIPv4map || testing.Short() || !*testExternal { + return + } + + l, port := usableListenPort(t, "tcp", "[::]") + defer l.Close() + + for _, tt := range prohibitionaryDialArgTests { + c, err := Dial(tt.net, tt.addr+":"+port) + if err == nil { + c.Close() + t.Fatalf("Dial(%q, %q) should fail", tt.net, tt.addr) + } + } +} |