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authorAndrei Vagin <avagin@google.com>2019-10-02 13:00:07 -0700
committerGitHub <noreply@github.com>2019-10-02 13:00:07 -0700
commit9a875306dbabcf335a2abccc08119a1b67d0e51a (patch)
tree0f72c12e951a5eee7156df7a5d63351bc89befa6 /pkg/tcpip/transport/tcp/tcp_test.go
parent38bc0b6b6addd25ceec4f66ef1af41c1e61e2985 (diff)
parent03ce4dd86c9acd6b6148f68d5d2cf025d8c254bb (diff)
Merge branch 'master' into pr_syscall_linux
Diffstat (limited to 'pkg/tcpip/transport/tcp/tcp_test.go')
-rw-r--r--pkg/tcpip/transport/tcp/tcp_test.go392
1 files changed, 318 insertions, 74 deletions
diff --git a/pkg/tcpip/transport/tcp/tcp_test.go b/pkg/tcpip/transport/tcp/tcp_test.go
index f79b8ec5f..089826a88 100644
--- a/pkg/tcpip/transport/tcp/tcp_test.go
+++ b/pkg/tcpip/transport/tcp/tcp_test.go
@@ -84,7 +84,7 @@ func TestConnectIncrementActiveConnection(t *testing.T) {
stats := c.Stack().Stats()
want := stats.TCP.ActiveConnectionOpenings.Value() + 1
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
if got := stats.TCP.ActiveConnectionOpenings.Value(); got != want {
t.Errorf("got stats.TCP.ActtiveConnectionOpenings.Value() = %v, want = %v", got, want)
}
@@ -97,7 +97,7 @@ func TestConnectDoesNotIncrementFailedConnectionAttempts(t *testing.T) {
stats := c.Stack().Stats()
want := stats.TCP.FailedConnectionAttempts.Value()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
if got := stats.TCP.FailedConnectionAttempts.Value(); got != want {
t.Errorf("got stats.TCP.FailedConnectionOpenings.Value() = %v, want = %v", got, want)
}
@@ -131,7 +131,7 @@ func TestTCPSegmentsSentIncrement(t *testing.T) {
stats := c.Stack().Stats()
// SYN and ACK
want := stats.TCP.SegmentsSent.Value() + 2
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
if got := stats.TCP.SegmentsSent.Value(); got != want {
t.Errorf("got stats.TCP.SegmentsSent.Value() = %v, want = %v", got, want)
@@ -190,21 +190,122 @@ func TestTCPResetsSentIncrement(t *testing.T) {
}
}
+// TestTCPResetSentForACKWhenNotUsingSynCookies checks that the stack generates
+// a RST if an ACK is received on the listening socket for which there is no
+// active handshake in progress and we are not using SYN cookies.
+func TestTCPResetSentForACKWhenNotUsingSynCookies(t *testing.T) {
+ c := context.New(t, defaultMTU)
+ defer c.Cleanup()
+
+ wq := &waiter.Queue{}
+ ep, err := c.Stack().NewEndpoint(tcp.ProtocolNumber, ipv4.ProtocolNumber, wq)
+ if err != nil {
+ t.Fatalf("NewEndpoint failed: %v", err)
+ }
+ if err := ep.Bind(tcpip.FullAddress{Port: context.StackPort}); err != nil {
+ t.Fatalf("Bind failed: %v", err)
+ }
+
+ if err := ep.Listen(10); err != nil {
+ t.Fatalf("Listen failed: %v", err)
+ }
+
+ // Send a SYN request.
+ iss := seqnum.Value(789)
+ c.SendPacket(nil, &context.Headers{
+ SrcPort: context.TestPort,
+ DstPort: context.StackPort,
+ Flags: header.TCPFlagSyn,
+ SeqNum: iss,
+ })
+
+ // Receive the SYN-ACK reply.
+ b := c.GetPacket()
+ tcpHdr := header.TCP(header.IPv4(b).Payload())
+ c.IRS = seqnum.Value(tcpHdr.SequenceNumber())
+
+ ackHeaders := &context.Headers{
+ SrcPort: context.TestPort,
+ DstPort: context.StackPort,
+ Flags: header.TCPFlagAck,
+ SeqNum: iss + 1,
+ AckNum: c.IRS + 1,
+ }
+
+ // Send ACK.
+ c.SendPacket(nil, ackHeaders)
+
+ // Try to accept the connection.
+ we, ch := waiter.NewChannelEntry(nil)
+ wq.EventRegister(&we, waiter.EventIn)
+ defer wq.EventUnregister(&we)
+
+ c.EP, _, err = ep.Accept()
+ if err == tcpip.ErrWouldBlock {
+ // Wait for connection to be established.
+ select {
+ case <-ch:
+ c.EP, _, err = ep.Accept()
+ if err != nil {
+ t.Fatalf("Accept failed: %v", err)
+ }
+
+ case <-time.After(1 * time.Second):
+ t.Fatalf("Timed out waiting for accept")
+ }
+ }
+
+ c.EP.Close()
+ checker.IPv4(t, c.GetPacket(), checker.TCP(
+ checker.SrcPort(context.StackPort),
+ checker.DstPort(context.TestPort),
+ checker.SeqNum(uint32(c.IRS+1)),
+ checker.AckNum(uint32(iss)+1),
+ checker.TCPFlags(header.TCPFlagFin|header.TCPFlagAck)))
+
+ finHeaders := &context.Headers{
+ SrcPort: context.TestPort,
+ DstPort: context.StackPort,
+ Flags: header.TCPFlagAck | header.TCPFlagFin,
+ SeqNum: iss + 1,
+ AckNum: c.IRS + 2,
+ }
+
+ c.SendPacket(nil, finHeaders)
+
+ // Get the ACK to the FIN we just sent.
+ c.GetPacket()
+
+ // Now resend the same ACK, this ACK should generate a RST as there
+ // should be no endpoint in SYN-RCVD state and we are not using
+ // syn-cookies yet. The reason we send the same ACK is we need a valid
+ // cookie(IRS) generated by the netstack without which the ACK will be
+ // rejected.
+ c.SendPacket(nil, ackHeaders)
+
+ checker.IPv4(t, c.GetPacket(), checker.TCP(
+ checker.SrcPort(context.StackPort),
+ checker.DstPort(context.TestPort),
+ checker.SeqNum(uint32(c.IRS+1)),
+ checker.AckNum(uint32(iss)+1),
+ checker.TCPFlags(header.TCPFlagRst|header.TCPFlagAck)))
+}
+
func TestTCPResetsReceivedIncrement(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
stats := c.Stack().Stats()
want := stats.TCP.ResetsReceived.Value() + 1
- ackNum := seqnum.Value(789)
+ iss := seqnum.Value(789)
rcvWnd := seqnum.Size(30000)
- c.CreateConnected(ackNum, rcvWnd, nil)
+ c.CreateConnected(iss, rcvWnd, -1 /* epRcvBuf */)
c.SendPacket(nil, &context.Headers{
SrcPort: context.TestPort,
DstPort: c.Port,
- SeqNum: c.IRS.Add(2),
- AckNum: ackNum.Add(2),
+ SeqNum: iss.Add(1),
+ AckNum: c.IRS.Add(1),
RcvWnd: rcvWnd,
Flags: header.TCPFlagRst,
})
@@ -214,18 +315,43 @@ func TestTCPResetsReceivedIncrement(t *testing.T) {
}
}
+func TestTCPResetsDoNotGenerateResets(t *testing.T) {
+ c := context.New(t, defaultMTU)
+ defer c.Cleanup()
+
+ stats := c.Stack().Stats()
+ want := stats.TCP.ResetsReceived.Value() + 1
+ iss := seqnum.Value(789)
+ rcvWnd := seqnum.Size(30000)
+ c.CreateConnected(iss, rcvWnd, -1 /* epRcvBuf */)
+
+ c.SendPacket(nil, &context.Headers{
+ SrcPort: context.TestPort,
+ DstPort: c.Port,
+ SeqNum: iss.Add(1),
+ AckNum: c.IRS.Add(1),
+ RcvWnd: rcvWnd,
+ Flags: header.TCPFlagRst,
+ })
+
+ if got := stats.TCP.ResetsReceived.Value(); got != want {
+ t.Errorf("got stats.TCP.ResetsReceived.Value() = %v, want = %v", got, want)
+ }
+ c.CheckNoPacketTimeout("got an unexpected packet", 100*time.Millisecond)
+}
+
func TestActiveHandshake(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
}
func TestNonBlockingClose(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
ep := c.EP
c.EP = nil
@@ -241,7 +367,7 @@ func TestConnectResetAfterClose(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
ep := c.EP
c.EP = nil
@@ -291,7 +417,7 @@ func TestSimpleReceive(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
we, ch := waiter.NewChannelEntry(nil)
c.WQ.EventRegister(&we, waiter.EventIn)
@@ -339,11 +465,71 @@ func TestSimpleReceive(t *testing.T) {
)
}
+func TestConnectBindToDevice(t *testing.T) {
+ for _, test := range []struct {
+ name string
+ device string
+ want tcp.EndpointState
+ }{
+ {"RightDevice", "nic1", tcp.StateEstablished},
+ {"WrongDevice", "nic2", tcp.StateSynSent},
+ {"AnyDevice", "", tcp.StateEstablished},
+ } {
+ t.Run(test.name, func(t *testing.T) {
+ c := context.New(t, defaultMTU)
+ defer c.Cleanup()
+
+ c.Create(-1)
+ bindToDevice := tcpip.BindToDeviceOption(test.device)
+ c.EP.SetSockOpt(bindToDevice)
+ // Start connection attempt.
+ waitEntry, _ := waiter.NewChannelEntry(nil)
+ c.WQ.EventRegister(&waitEntry, waiter.EventOut)
+ defer c.WQ.EventUnregister(&waitEntry)
+
+ if err := c.EP.Connect(tcpip.FullAddress{Addr: context.TestAddr, Port: context.TestPort}); err != tcpip.ErrConnectStarted {
+ t.Fatalf("Unexpected return value from Connect: %v", err)
+ }
+
+ // Receive SYN packet.
+ b := c.GetPacket()
+ checker.IPv4(t, b,
+ checker.TCP(
+ checker.DstPort(context.TestPort),
+ checker.TCPFlags(header.TCPFlagSyn),
+ ),
+ )
+ if got, want := tcp.EndpointState(c.EP.State()), tcp.StateSynSent; got != want {
+ t.Fatalf("Unexpected endpoint state: want %v, got %v", want, got)
+ }
+ tcpHdr := header.TCP(header.IPv4(b).Payload())
+ c.IRS = seqnum.Value(tcpHdr.SequenceNumber())
+
+ iss := seqnum.Value(789)
+ rcvWnd := seqnum.Size(30000)
+ c.SendPacket(nil, &context.Headers{
+ SrcPort: tcpHdr.DestinationPort(),
+ DstPort: tcpHdr.SourcePort(),
+ Flags: header.TCPFlagSyn | header.TCPFlagAck,
+ SeqNum: iss,
+ AckNum: c.IRS.Add(1),
+ RcvWnd: rcvWnd,
+ TCPOpts: nil,
+ })
+
+ c.GetPacket()
+ if got, want := tcp.EndpointState(c.EP.State()), test.want; got != want {
+ t.Fatalf("Unexpected endpoint state: want %v, got %v", want, got)
+ }
+ })
+ }
+}
+
func TestOutOfOrderReceive(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
we, ch := waiter.NewChannelEntry(nil)
c.WQ.EventRegister(&we, waiter.EventIn)
@@ -431,8 +617,7 @@ func TestOutOfOrderFlood(t *testing.T) {
defer c.Cleanup()
// Create a new connection with initial window size of 10.
- opt := tcpip.ReceiveBufferSizeOption(10)
- c.CreateConnected(789, 30000, &opt)
+ c.CreateConnected(789, 30000, 10)
if _, _, err := c.EP.Read(nil); err != tcpip.ErrWouldBlock {
t.Fatalf("got c.EP.Read(nil) = %v, want = %v", err, tcpip.ErrWouldBlock)
@@ -505,7 +690,7 @@ func TestRstOnCloseWithUnreadData(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
we, ch := waiter.NewChannelEntry(nil)
c.WQ.EventRegister(&we, waiter.EventIn)
@@ -574,7 +759,7 @@ func TestRstOnCloseWithUnreadDataFinConvertRst(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
we, ch := waiter.NewChannelEntry(nil)
c.WQ.EventRegister(&we, waiter.EventIn)
@@ -659,7 +844,7 @@ func TestShutdownRead(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
if _, _, err := c.EP.Read(nil); err != tcpip.ErrWouldBlock {
t.Fatalf("got c.EP.Read(nil) = %v, want = %v", err, tcpip.ErrWouldBlock)
@@ -678,8 +863,7 @@ func TestFullWindowReceive(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- opt := tcpip.ReceiveBufferSizeOption(10)
- c.CreateConnected(789, 30000, &opt)
+ c.CreateConnected(789, 30000, 10)
we, ch := waiter.NewChannelEntry(nil)
c.WQ.EventRegister(&we, waiter.EventIn)
@@ -746,11 +930,9 @@ func TestNoWindowShrinking(t *testing.T) {
defer c.Cleanup()
// Start off with a window size of 10, then shrink it to 5.
- opt := tcpip.ReceiveBufferSizeOption(10)
- c.CreateConnected(789, 30000, &opt)
+ c.CreateConnected(789, 30000, 10)
- opt = 5
- if err := c.EP.SetSockOpt(opt); err != nil {
+ if err := c.EP.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 5); err != nil {
t.Fatalf("SetSockOpt failed: %v", err)
}
@@ -850,7 +1032,7 @@ func TestSimpleSend(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
data := []byte{1, 2, 3}
view := buffer.NewView(len(data))
@@ -891,7 +1073,7 @@ func TestZeroWindowSend(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 0, nil)
+ c.CreateConnected(789, 0, -1 /* epRcvBuf */)
data := []byte{1, 2, 3}
view := buffer.NewView(len(data))
@@ -949,8 +1131,7 @@ func TestScaledWindowConnect(t *testing.T) {
defer c.Cleanup()
// Set the window size greater than the maximum non-scaled window.
- opt := tcpip.ReceiveBufferSizeOption(65535 * 3)
- c.CreateConnectedWithRawOptions(789, 30000, &opt, []byte{
+ c.CreateConnectedWithRawOptions(789, 30000, 65535*3, []byte{
header.TCPOptionWS, 3, 0, header.TCPOptionNOP,
})
@@ -984,8 +1165,7 @@ func TestNonScaledWindowConnect(t *testing.T) {
defer c.Cleanup()
// Set the window size greater than the maximum non-scaled window.
- opt := tcpip.ReceiveBufferSizeOption(65535 * 3)
- c.CreateConnected(789, 30000, &opt)
+ c.CreateConnected(789, 30000, 65535*3)
data := []byte{1, 2, 3}
view := buffer.NewView(len(data))
@@ -1025,7 +1205,7 @@ func TestScaledWindowAccept(t *testing.T) {
defer ep.Close()
// Set the window size greater than the maximum non-scaled window.
- if err := ep.SetSockOpt(tcpip.ReceiveBufferSizeOption(65535 * 3)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 65535*3); err != nil {
t.Fatalf("SetSockOpt failed failed: %v", err)
}
@@ -1098,7 +1278,7 @@ func TestNonScaledWindowAccept(t *testing.T) {
defer ep.Close()
// Set the window size greater than the maximum non-scaled window.
- if err := ep.SetSockOpt(tcpip.ReceiveBufferSizeOption(65535 * 3)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 65535*3); err != nil {
t.Fatalf("SetSockOpt failed failed: %v", err)
}
@@ -1167,8 +1347,7 @@ func TestZeroScaledWindowReceive(t *testing.T) {
// Set the window size such that a window scale of 4 will be used.
const wnd = 65535 * 10
const ws = uint32(4)
- opt := tcpip.ReceiveBufferSizeOption(wnd)
- c.CreateConnectedWithRawOptions(789, 30000, &opt, []byte{
+ c.CreateConnectedWithRawOptions(789, 30000, wnd, []byte{
header.TCPOptionWS, 3, 0, header.TCPOptionNOP,
})
@@ -1273,7 +1452,7 @@ func TestSegmentMerging(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Prevent the endpoint from processing packets.
test.stop(c.EP)
@@ -1323,7 +1502,7 @@ func TestDelay(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
c.EP.SetSockOpt(tcpip.DelayOption(1))
@@ -1371,7 +1550,7 @@ func TestUndelay(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
c.EP.SetSockOpt(tcpip.DelayOption(1))
@@ -1453,7 +1632,7 @@ func TestMSSNotDelayed(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnectedWithRawOptions(789, 30000, nil, []byte{
+ c.CreateConnectedWithRawOptions(789, 30000, -1 /* epRcvBuf */, []byte{
header.TCPOptionMSS, 4, byte(maxPayload / 256), byte(maxPayload % 256),
})
@@ -1569,7 +1748,7 @@ func TestSendGreaterThanMTU(t *testing.T) {
c := context.New(t, uint32(header.TCPMinimumSize+header.IPv4MinimumSize+maxPayload))
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
testBrokenUpWrite(t, c, maxPayload)
}
@@ -1578,7 +1757,7 @@ func TestActiveSendMSSLessThanMTU(t *testing.T) {
c := context.New(t, 65535)
defer c.Cleanup()
- c.CreateConnectedWithRawOptions(789, 30000, nil, []byte{
+ c.CreateConnectedWithRawOptions(789, 30000, -1 /* epRcvBuf */, []byte{
header.TCPOptionMSS, 4, byte(maxPayload / 256), byte(maxPayload % 256),
})
testBrokenUpWrite(t, c, maxPayload)
@@ -1601,7 +1780,7 @@ func TestPassiveSendMSSLessThanMTU(t *testing.T) {
// Set the buffer size to a deterministic size so that we can check the
// window scaling option.
const rcvBufferSize = 0x20000
- if err := ep.SetSockOpt(tcpip.ReceiveBufferSizeOption(rcvBufferSize)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, rcvBufferSize); err != nil {
t.Fatalf("SetSockOpt failed failed: %v", err)
}
@@ -1745,7 +1924,7 @@ func TestSynOptionsOnActiveConnect(t *testing.T) {
// window scaling option.
const rcvBufferSize = 0x20000
const wndScale = 2
- if err := c.EP.SetSockOpt(tcpip.ReceiveBufferSizeOption(rcvBufferSize)); err != nil {
+ if err := c.EP.SetSockOptInt(tcpip.ReceiveBufferSizeOption, rcvBufferSize); err != nil {
t.Fatalf("SetSockOpt failed failed: %v", err)
}
@@ -1847,7 +2026,7 @@ func TestReceiveOnResetConnection(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Send RST segment.
c.SendPacket(nil, &context.Headers{
@@ -1884,7 +2063,7 @@ func TestSendOnResetConnection(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Send RST segment.
c.SendPacket(nil, &context.Headers{
@@ -1909,7 +2088,7 @@ func TestFinImmediately(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Shutdown immediately, check that we get a FIN.
if err := c.EP.Shutdown(tcpip.ShutdownWrite); err != nil {
@@ -1952,7 +2131,7 @@ func TestFinRetransmit(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Shutdown immediately, check that we get a FIN.
if err := c.EP.Shutdown(tcpip.ShutdownWrite); err != nil {
@@ -2006,7 +2185,7 @@ func TestFinWithNoPendingData(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Write something out, and have it acknowledged.
view := buffer.NewView(10)
@@ -2077,7 +2256,7 @@ func TestFinWithPendingDataCwndFull(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Write enough segments to fill the congestion window before ACK'ing
// any of them.
@@ -2165,7 +2344,7 @@ func TestFinWithPendingData(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Write something out, and acknowledge it to get cwnd to 2.
view := buffer.NewView(10)
@@ -2251,7 +2430,7 @@ func TestFinWithPartialAck(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Write something out, and acknowledge it to get cwnd to 2. Also send
// FIN from the test side.
@@ -2383,7 +2562,7 @@ func scaledSendWindow(t *testing.T, scale uint8) {
defer c.Cleanup()
maxPayload := defaultMTU - header.IPv4MinimumSize - header.TCPMinimumSize
- c.CreateConnectedWithRawOptions(789, 0, nil, []byte{
+ c.CreateConnectedWithRawOptions(789, 0, -1 /* epRcvBuf */, []byte{
header.TCPOptionMSS, 4, byte(maxPayload / 256), byte(maxPayload % 256),
header.TCPOptionWS, 3, scale, header.TCPOptionNOP,
})
@@ -2433,7 +2612,7 @@ func TestScaledSendWindow(t *testing.T) {
func TestReceivedValidSegmentCountIncrement(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
stats := c.Stack().Stats()
want := stats.TCP.ValidSegmentsReceived.Value() + 1
@@ -2454,7 +2633,7 @@ func TestReceivedValidSegmentCountIncrement(t *testing.T) {
func TestReceivedInvalidSegmentCountIncrement(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
stats := c.Stack().Stats()
want := stats.TCP.InvalidSegmentsReceived.Value() + 1
vv := c.BuildSegment(nil, &context.Headers{
@@ -2478,7 +2657,7 @@ func TestReceivedInvalidSegmentCountIncrement(t *testing.T) {
func TestReceivedIncorrectChecksumIncrement(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
stats := c.Stack().Stats()
want := stats.TCP.ChecksumErrors.Value() + 1
vv := c.BuildSegment([]byte{0x1, 0x2, 0x3}, &context.Headers{
@@ -2509,7 +2688,7 @@ func TestReceivedSegmentQueuing(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
// Send 200 segments.
data := []byte{1, 2, 3}
@@ -2555,7 +2734,7 @@ func TestReadAfterClosedState(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
we, ch := waiter.NewChannelEntry(nil)
c.WQ.EventRegister(&we, waiter.EventIn)
@@ -2730,8 +2909,8 @@ func TestReusePort(t *testing.T) {
func checkRecvBufferSize(t *testing.T, ep tcpip.Endpoint, v int) {
t.Helper()
- var s tcpip.ReceiveBufferSizeOption
- if err := ep.GetSockOpt(&s); err != nil {
+ s, err := ep.GetSockOptInt(tcpip.ReceiveBufferSizeOption)
+ if err != nil {
t.Fatalf("GetSockOpt failed: %v", err)
}
@@ -2743,8 +2922,8 @@ func checkRecvBufferSize(t *testing.T, ep tcpip.Endpoint, v int) {
func checkSendBufferSize(t *testing.T, ep tcpip.Endpoint, v int) {
t.Helper()
- var s tcpip.SendBufferSizeOption
- if err := ep.GetSockOpt(&s); err != nil {
+ s, err := ep.GetSockOptInt(tcpip.SendBufferSizeOption)
+ if err != nil {
t.Fatalf("GetSockOpt failed: %v", err)
}
@@ -2754,7 +2933,10 @@ func checkSendBufferSize(t *testing.T, ep tcpip.Endpoint, v int) {
}
func TestDefaultBufferSizes(t *testing.T) {
- s := stack.New([]string{ipv4.ProtocolName}, []string{tcp.ProtocolName}, stack.Options{})
+ s := stack.New(stack.Options{
+ NetworkProtocols: []stack.NetworkProtocol{ipv4.NewProtocol()},
+ TransportProtocols: []stack.TransportProtocol{tcp.NewProtocol()},
+ })
// Check the default values.
ep, err := s.NewEndpoint(tcp.ProtocolNumber, ipv4.ProtocolNumber, &waiter.Queue{})
@@ -2800,7 +2982,10 @@ func TestDefaultBufferSizes(t *testing.T) {
}
func TestMinMaxBufferSizes(t *testing.T) {
- s := stack.New([]string{ipv4.ProtocolName}, []string{tcp.ProtocolName}, stack.Options{})
+ s := stack.New(stack.Options{
+ NetworkProtocols: []stack.NetworkProtocol{ipv4.NewProtocol()},
+ TransportProtocols: []stack.TransportProtocol{tcp.NewProtocol()},
+ })
// Check the default values.
ep, err := s.NewEndpoint(tcp.ProtocolNumber, ipv4.ProtocolNumber, &waiter.Queue{})
@@ -2819,37 +3004,96 @@ func TestMinMaxBufferSizes(t *testing.T) {
}
// Set values below the min.
- if err := ep.SetSockOpt(tcpip.ReceiveBufferSizeOption(199)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 199); err != nil {
t.Fatalf("GetSockOpt failed: %v", err)
}
checkRecvBufferSize(t, ep, 200)
- if err := ep.SetSockOpt(tcpip.SendBufferSizeOption(299)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.SendBufferSizeOption, 299); err != nil {
t.Fatalf("GetSockOpt failed: %v", err)
}
checkSendBufferSize(t, ep, 300)
// Set values above the max.
- if err := ep.SetSockOpt(tcpip.ReceiveBufferSizeOption(1 + tcp.DefaultReceiveBufferSize*20)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 1+tcp.DefaultReceiveBufferSize*20); err != nil {
t.Fatalf("GetSockOpt failed: %v", err)
}
checkRecvBufferSize(t, ep, tcp.DefaultReceiveBufferSize*20)
- if err := ep.SetSockOpt(tcpip.SendBufferSizeOption(1 + tcp.DefaultSendBufferSize*30)); err != nil {
+ if err := ep.SetSockOptInt(tcpip.SendBufferSizeOption, 1+tcp.DefaultSendBufferSize*30); err != nil {
t.Fatalf("GetSockOpt failed: %v", err)
}
checkSendBufferSize(t, ep, tcp.DefaultSendBufferSize*30)
}
+func TestBindToDeviceOption(t *testing.T) {
+ s := stack.New(stack.Options{
+ NetworkProtocols: []stack.NetworkProtocol{ipv4.NewProtocol()},
+ TransportProtocols: []stack.TransportProtocol{tcp.NewProtocol()}})
+
+ ep, err := s.NewEndpoint(tcp.ProtocolNumber, ipv4.ProtocolNumber, &waiter.Queue{})
+ if err != nil {
+ t.Fatalf("NewEndpoint failed; %v", err)
+ }
+ defer ep.Close()
+
+ if err := s.CreateNamedNIC(321, "my_device", loopback.New()); err != nil {
+ t.Errorf("CreateNamedNIC failed: %v", err)
+ }
+
+ // Make an nameless NIC.
+ if err := s.CreateNIC(54321, loopback.New()); err != nil {
+ t.Errorf("CreateNIC failed: %v", err)
+ }
+
+ // strPtr is used instead of taking the address of string literals, which is
+ // a compiler error.
+ strPtr := func(s string) *string {
+ return &s
+ }
+
+ testActions := []struct {
+ name string
+ setBindToDevice *string
+ setBindToDeviceError *tcpip.Error
+ getBindToDevice tcpip.BindToDeviceOption
+ }{
+ {"GetDefaultValue", nil, nil, ""},
+ {"BindToNonExistent", strPtr("non_existent_device"), tcpip.ErrUnknownDevice, ""},
+ {"BindToExistent", strPtr("my_device"), nil, "my_device"},
+ {"UnbindToDevice", strPtr(""), nil, ""},
+ }
+ for _, testAction := range testActions {
+ t.Run(testAction.name, func(t *testing.T) {
+ if testAction.setBindToDevice != nil {
+ bindToDevice := tcpip.BindToDeviceOption(*testAction.setBindToDevice)
+ if got, want := ep.SetSockOpt(bindToDevice), testAction.setBindToDeviceError; got != want {
+ t.Errorf("SetSockOpt(%v) got %v, want %v", bindToDevice, got, want)
+ }
+ }
+ bindToDevice := tcpip.BindToDeviceOption("to be modified by GetSockOpt")
+ if ep.GetSockOpt(&bindToDevice) != nil {
+ t.Errorf("GetSockOpt got %v, want %v", ep.GetSockOpt(&bindToDevice), nil)
+ }
+ if got, want := bindToDevice, testAction.getBindToDevice; got != want {
+ t.Errorf("bindToDevice got %q, want %q", got, want)
+ }
+ })
+ }
+}
+
func makeStack() (*stack.Stack, *tcpip.Error) {
- s := stack.New([]string{
- ipv4.ProtocolName,
- ipv6.ProtocolName,
- }, []string{tcp.ProtocolName}, stack.Options{})
+ s := stack.New(stack.Options{
+ NetworkProtocols: []stack.NetworkProtocol{
+ ipv4.NewProtocol(),
+ ipv6.NewProtocol(),
+ },
+ TransportProtocols: []stack.TransportProtocol{tcp.NewProtocol()},
+ })
id := loopback.New()
if testing.Verbose() {
@@ -3105,7 +3349,7 @@ func TestPathMTUDiscovery(t *testing.T) {
// Create new connection with MSS of 1460.
const maxPayload = 1500 - header.TCPMinimumSize - header.IPv4MinimumSize
- c.CreateConnectedWithRawOptions(789, 30000, nil, []byte{
+ c.CreateConnectedWithRawOptions(789, 30000, -1 /* epRcvBuf */, []byte{
header.TCPOptionMSS, 4, byte(maxPayload / 256), byte(maxPayload % 256),
})
@@ -3182,7 +3426,7 @@ func TestTCPEndpointProbe(t *testing.T) {
invoked <- struct{}{}
})
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
data := []byte{1, 2, 3}
c.SendPacket(data, &context.Headers{
@@ -3356,7 +3600,7 @@ func TestKeepalive(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- c.CreateConnected(789, 30000, nil)
+ c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
c.EP.SetSockOpt(tcpip.KeepaliveIdleOption(10 * time.Millisecond))
c.EP.SetSockOpt(tcpip.KeepaliveIntervalOption(10 * time.Millisecond))
@@ -3459,8 +3703,8 @@ func TestKeepalive(t *testing.T) {
),
)
- if _, _, err := c.EP.Read(nil); err != tcpip.ErrConnectionReset {
- t.Fatalf("got c.EP.Read(nil) = %v, want = %v", err, tcpip.ErrConnectionReset)
+ if _, _, err := c.EP.Read(nil); err != tcpip.ErrTimeout {
+ t.Fatalf("got c.EP.Read(nil) = %v, want = %v", err, tcpip.ErrTimeout)
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-28 23:45:38 +0000