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-rw-r--r--pkg/tcpip/stack/transport_demuxer_test.go35
-rw-r--r--pkg/tcpip/tcpip.go145
-rw-r--r--pkg/tcpip/transport/icmp/endpoint.go47
-rw-r--r--pkg/tcpip/transport/raw/endpoint.go18
-rw-r--r--pkg/tcpip/transport/tcp/endpoint.go387
-rw-r--r--pkg/tcpip/transport/tcp/tcp_test.go110
-rw-r--r--pkg/tcpip/transport/udp/endpoint.go231
-rw-r--r--pkg/tcpip/transport/udp/udp_test.go60
8 files changed, 489 insertions, 544 deletions
diff --git a/pkg/tcpip/stack/transport_demuxer_test.go b/pkg/tcpip/stack/transport_demuxer_test.go
index c65b0c632..2474a7db3 100644
--- a/pkg/tcpip/stack/transport_demuxer_test.go
+++ b/pkg/tcpip/stack/transport_demuxer_test.go
@@ -206,7 +206,7 @@ func TestTransportDemuxerRegister(t *testing.T) {
// the distribution of packets received matches expectations.
func TestBindToDeviceDistribution(t *testing.T) {
type endpointSockopts struct {
- reuse int
+ reuse bool
bindToDevice tcpip.NICID
}
for _, test := range []struct {
@@ -221,11 +221,11 @@ func TestBindToDeviceDistribution(t *testing.T) {
"BindPortReuse",
// 5 endpoints that all have reuse set.
[]endpointSockopts{
- {reuse: 1, bindToDevice: 0},
- {reuse: 1, bindToDevice: 0},
- {reuse: 1, bindToDevice: 0},
- {reuse: 1, bindToDevice: 0},
- {reuse: 1, bindToDevice: 0},
+ {reuse: true, bindToDevice: 0},
+ {reuse: true, bindToDevice: 0},
+ {reuse: true, bindToDevice: 0},
+ {reuse: true, bindToDevice: 0},
+ {reuse: true, bindToDevice: 0},
},
map[tcpip.NICID][]float64{
// Injected packets on dev0 get distributed evenly.
@@ -236,9 +236,9 @@ func TestBindToDeviceDistribution(t *testing.T) {
"BindToDevice",
// 3 endpoints with various bindings.
[]endpointSockopts{
- {reuse: 0, bindToDevice: 1},
- {reuse: 0, bindToDevice: 2},
- {reuse: 0, bindToDevice: 3},
+ {reuse: false, bindToDevice: 1},
+ {reuse: false, bindToDevice: 2},
+ {reuse: false, bindToDevice: 3},
},
map[tcpip.NICID][]float64{
// Injected packets on dev0 go only to the endpoint bound to dev0.
@@ -253,12 +253,12 @@ func TestBindToDeviceDistribution(t *testing.T) {
"ReuseAndBindToDevice",
// 6 endpoints with various bindings.
[]endpointSockopts{
- {reuse: 1, bindToDevice: 1},
- {reuse: 1, bindToDevice: 1},
- {reuse: 1, bindToDevice: 2},
- {reuse: 1, bindToDevice: 2},
- {reuse: 1, bindToDevice: 2},
- {reuse: 1, bindToDevice: 0},
+ {reuse: true, bindToDevice: 1},
+ {reuse: true, bindToDevice: 1},
+ {reuse: true, bindToDevice: 2},
+ {reuse: true, bindToDevice: 2},
+ {reuse: true, bindToDevice: 2},
+ {reuse: true, bindToDevice: 0},
},
map[tcpip.NICID][]float64{
// Injected packets on dev0 get distributed among endpoints bound to
@@ -309,9 +309,8 @@ func TestBindToDeviceDistribution(t *testing.T) {
}(ep)
defer ep.Close()
- reusePortOption := tcpip.ReusePortOption(endpoint.reuse)
- if err := ep.SetSockOpt(reusePortOption); err != nil {
- t.Fatalf("SetSockOpt(%#v) on endpoint %d failed: %s", reusePortOption, i, err)
+ if err := ep.SetSockOptBool(tcpip.ReusePortOption, endpoint.reuse); err != nil {
+ t.Fatalf("SetSockOptBool(ReusePortOption, %t) on endpoint %d failed: %s", endpoint.reuse, i, err)
}
bindToDeviceOption := tcpip.BindToDeviceOption(endpoint.bindToDevice)
if err := ep.SetSockOpt(bindToDeviceOption); err != nil {
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go
index 2ef3271f1..aec7126ff 100644
--- a/pkg/tcpip/tcpip.go
+++ b/pkg/tcpip/tcpip.go
@@ -520,34 +520,90 @@ type WriteOptions struct {
type SockOptBool int
const (
+ // BroadcastOption is used by SetSockOpt/GetSockOpt to specify whether
+ // datagram sockets are allowed to send packets to a broadcast address.
+ BroadcastOption SockOptBool = iota
+
+ // CorkOption is used by SetSockOpt/GetSockOpt to specify if data should be
+ // held until segments are full by the TCP transport protocol.
+ CorkOption
+
+ // DelayOption is used by SetSockOpt/GetSockOpt to specify if data
+ // should be sent out immediately by the transport protocol. For TCP,
+ // it determines if the Nagle algorithm is on or off.
+ DelayOption
+
+ // KeepaliveEnabledOption is used by SetSockOpt/GetSockOpt to specify whether
+ // TCP keepalive is enabled for this socket.
+ KeepaliveEnabledOption
+
+ // MulticastLoopOption is used by SetSockOpt/GetSockOpt to specify whether
+ // multicast packets sent over a non-loopback interface will be looped back.
+ MulticastLoopOption
+
+ // PasscredOption is used by SetSockOpt/GetSockOpt to specify whether
+ // SCM_CREDENTIALS socket control messages are enabled.
+ //
+ // Only supported on Unix sockets.
+ PasscredOption
+
+ // QuickAckOption is stubbed out in SetSockOpt/GetSockOpt.
+ QuickAckOption
+
// ReceiveTClassOption is used by SetSockOpt/GetSockOpt to specify if the
// IPV6_TCLASS ancillary message is passed with incoming packets.
- ReceiveTClassOption SockOptBool = iota
+ ReceiveTClassOption
// ReceiveTOSOption is used by SetSockOpt/GetSockOpt to specify if the TOS
// ancillary message is passed with incoming packets.
ReceiveTOSOption
- // V6OnlyOption is used by {G,S}etSockOptBool to specify whether an IPv6
- // socket is to be restricted to sending and receiving IPv6 packets only.
- V6OnlyOption
-
// ReceiveIPPacketInfoOption is used by {G,S}etSockOptBool to specify
// if more inforamtion is provided with incoming packets such
// as interface index and address.
ReceiveIPPacketInfoOption
- // TODO(b/146901447): convert existing bool socket options to be handled via
- // Get/SetSockOptBool
+ // ReuseAddressOption is used by SetSockOpt/GetSockOpt to specify whether Bind()
+ // should allow reuse of local address.
+ ReuseAddressOption
+
+ // ReusePortOption is used by SetSockOpt/GetSockOpt to permit multiple sockets
+ // to be bound to an identical socket address.
+ ReusePortOption
+
+ // V6OnlyOption is used by {G,S}etSockOptBool to specify whether an IPv6
+ // socket is to be restricted to sending and receiving IPv6 packets only.
+ V6OnlyOption
)
// SockOptInt represents socket options which values have the int type.
type SockOptInt int
const (
+ // KeepaliveCountOption is used by SetSockOpt/GetSockOpt to specify the number
+ // of un-ACKed TCP keepalives that will be sent before the connection is
+ // closed.
+ KeepaliveCountOption SockOptInt = iota
+
+ // IPv4TOSOption is used by SetSockOpt/GetSockOpt to specify TOS
+ // for all subsequent outgoing IPv4 packets from the endpoint.
+ IPv4TOSOption
+
+ // IPv6TrafficClassOption is used by SetSockOpt/GetSockOpt to specify TOS
+ // for all subsequent outgoing IPv6 packets from the endpoint.
+ IPv6TrafficClassOption
+
+ // MaxSegOption is used by SetSockOpt/GetSockOpt to set/get the current
+ // Maximum Segment Size(MSS) value as specified using the TCP_MAXSEG option.
+ MaxSegOption
+
+ // MulticastTTLOption is used by SetSockOpt/GetSockOpt to control the default
+ // TTL value for multicast messages. The default is 1.
+ MulticastTTLOption
+
// ReceiveQueueSizeOption is used in GetSockOptInt to specify that the
// number of unread bytes in the input buffer should be returned.
- ReceiveQueueSizeOption SockOptInt = iota
+ ReceiveQueueSizeOption
// SendBufferSizeOption is used by SetSockOptInt/GetSockOptInt to
// specify the send buffer size option.
@@ -561,44 +617,21 @@ const (
// number of unread bytes in the output buffer should be returned.
SendQueueSizeOption
- // DelayOption is used by SetSockOpt/GetSockOpt to specify if data
- // should be sent out immediately by the transport protocol. For TCP,
- // it determines if the Nagle algorithm is on or off.
- DelayOption
-
- // TODO(b/137664753): convert all int socket options to be handled via
- // GetSockOptInt.
+ // TTLOption is used by SetSockOpt/GetSockOpt to control the default TTL/hop
+ // limit value for unicast messages. The default is protocol specific.
+ //
+ // A zero value indicates the default.
+ TTLOption
)
// ErrorOption is used in GetSockOpt to specify that the last error reported by
// the endpoint should be cleared and returned.
type ErrorOption struct{}
-// CorkOption is used by SetSockOpt/GetSockOpt to specify if data should be
-// held until segments are full by the TCP transport protocol.
-type CorkOption int
-
-// ReuseAddressOption is used by SetSockOpt/GetSockOpt to specify whether Bind()
-// should allow reuse of local address.
-type ReuseAddressOption int
-
-// ReusePortOption is used by SetSockOpt/GetSockOpt to permit multiple sockets
-// to be bound to an identical socket address.
-type ReusePortOption int
-
// BindToDeviceOption is used by SetSockOpt/GetSockOpt to specify that sockets
// should bind only on a specific NIC.
type BindToDeviceOption NICID
-// QuickAckOption is stubbed out in SetSockOpt/GetSockOpt.
-type QuickAckOption int
-
-// PasscredOption is used by SetSockOpt/GetSockOpt to specify whether
-// SCM_CREDENTIALS socket control messages are enabled.
-//
-// Only supported on Unix sockets.
-type PasscredOption int
-
// TCPInfoOption is used by GetSockOpt to expose TCP statistics.
//
// TODO(b/64800844): Add and populate stat fields.
@@ -607,10 +640,6 @@ type TCPInfoOption struct {
RTTVar time.Duration
}
-// KeepaliveEnabledOption is used by SetSockOpt/GetSockOpt to specify whether
-// TCP keepalive is enabled for this socket.
-type KeepaliveEnabledOption int
-
// KeepaliveIdleOption is used by SetSockOpt/GetSockOpt to specify the time a
// connection must remain idle before the first TCP keepalive packet is sent.
// Once this time is reached, KeepaliveIntervalOption is used instead.
@@ -620,11 +649,6 @@ type KeepaliveIdleOption time.Duration
// interval between sending TCP keepalive packets.
type KeepaliveIntervalOption time.Duration
-// KeepaliveCountOption is used by SetSockOpt/GetSockOpt to specify the number
-// of un-ACKed TCP keepalives that will be sent before the connection is
-// closed.
-type KeepaliveCountOption int
-
// TCPUserTimeoutOption is used by SetSockOpt/GetSockOpt to specify a user
// specified timeout for a given TCP connection.
// See: RFC5482 for details.
@@ -638,20 +662,9 @@ type CongestionControlOption string
// control algorithms.
type AvailableCongestionControlOption string
-// ModerateReceiveBufferOption allows the caller to enable/disable TCP receive
// buffer moderation.
type ModerateReceiveBufferOption bool
-// MaxSegOption is used by SetSockOpt/GetSockOpt to set/get the current
-// Maximum Segment Size(MSS) value as specified using the TCP_MAXSEG option.
-type MaxSegOption int
-
-// TTLOption is used by SetSockOpt/GetSockOpt to control the default TTL/hop
-// limit value for unicast messages. The default is protocol specific.
-//
-// A zero value indicates the default.
-type TTLOption uint8
-
// TCPLingerTimeoutOption is used by SetSockOpt/GetSockOpt to set/get the
// maximum duration for which a socket lingers in the TCP_FIN_WAIT_2 state
// before being marked closed.
@@ -668,10 +681,6 @@ type TCPTimeWaitTimeoutOption time.Duration
// for a handshake till the specified timeout until a segment with data arrives.
type TCPDeferAcceptOption time.Duration
-// MulticastTTLOption is used by SetSockOpt/GetSockOpt to control the default
-// TTL value for multicast messages. The default is 1.
-type MulticastTTLOption uint8
-
// MulticastInterfaceOption is used by SetSockOpt/GetSockOpt to specify a
// default interface for multicast.
type MulticastInterfaceOption struct {
@@ -679,10 +688,6 @@ type MulticastInterfaceOption struct {
InterfaceAddr Address
}
-// MulticastLoopOption is used by SetSockOpt/GetSockOpt to specify whether
-// multicast packets sent over a non-loopback interface will be looped back.
-type MulticastLoopOption bool
-
// MembershipOption is used by SetSockOpt/GetSockOpt as an argument to
// AddMembershipOption and RemoveMembershipOption.
type MembershipOption struct {
@@ -705,22 +710,10 @@ type RemoveMembershipOption MembershipOption
// TCP out-of-band data is delivered along with the normal in-band data.
type OutOfBandInlineOption int
-// BroadcastOption is used by SetSockOpt/GetSockOpt to specify whether
-// datagram sockets are allowed to send packets to a broadcast address.
-type BroadcastOption int
-
// DefaultTTLOption is used by stack.(*Stack).NetworkProtocolOption to specify
// a default TTL.
type DefaultTTLOption uint8
-// IPv4TOSOption is used by SetSockOpt/GetSockOpt to specify TOS
-// for all subsequent outgoing IPv4 packets from the endpoint.
-type IPv4TOSOption uint8
-
-// IPv6TrafficClassOption is used by SetSockOpt/GetSockOpt to specify TOS
-// for all subsequent outgoing IPv6 packets from the endpoint.
-type IPv6TrafficClassOption uint8
-
// IPPacketInfo is the message struture for IP_PKTINFO.
//
// +stateify savable
diff --git a/pkg/tcpip/transport/icmp/endpoint.go b/pkg/tcpip/transport/icmp/endpoint.go
index b007302fb..3a133eef9 100644
--- a/pkg/tcpip/transport/icmp/endpoint.go
+++ b/pkg/tcpip/transport/icmp/endpoint.go
@@ -348,29 +348,37 @@ func (e *endpoint) Peek([][]byte) (int64, tcpip.ControlMessages, *tcpip.Error) {
// SetSockOpt sets a socket option.
func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
- switch o := opt.(type) {
- case tcpip.TTLOption:
- e.mu.Lock()
- e.ttl = uint8(o)
- e.mu.Unlock()
- }
-
return nil
}
// SetSockOptBool sets a socket option. Currently not supported.
func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- return nil
+ return tcpip.ErrUnknownProtocolOption
}
// SetSockOptInt sets a socket option. Currently not supported.
func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
+ switch opt {
+ case tcpip.TTLOption:
+ e.mu.Lock()
+ e.ttl = uint8(v)
+ e.mu.Unlock()
+
+ default:
+ return tcpip.ErrUnknownProtocolOption
+ }
return nil
}
// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrUnknownProtocolOption
+ switch opt {
+ case tcpip.KeepaliveEnabledOption:
+ return false, nil
+
+ default:
+ return false, tcpip.ErrUnknownProtocolOption
+ }
}
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
@@ -397,26 +405,23 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
e.rcvMu.Unlock()
return v, nil
+ case tcpip.TTLOption:
+ e.rcvMu.Lock()
+ v := int(e.ttl)
+ e.rcvMu.Unlock()
+ return v, nil
+
+ default:
+ return -1, tcpip.ErrUnknownProtocolOption
}
- return -1, tcpip.ErrUnknownProtocolOption
}
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
- switch o := opt.(type) {
+ switch opt.(type) {
case tcpip.ErrorOption:
return nil
- case *tcpip.KeepaliveEnabledOption:
- *o = 0
- return nil
-
- case *tcpip.TTLOption:
- e.rcvMu.Lock()
- *o = tcpip.TTLOption(e.ttl)
- e.rcvMu.Unlock()
- return nil
-
default:
return tcpip.ErrUnknownProtocolOption
}
diff --git a/pkg/tcpip/transport/raw/endpoint.go b/pkg/tcpip/transport/raw/endpoint.go
index 337bc1c71..eee754a5a 100644
--- a/pkg/tcpip/transport/raw/endpoint.go
+++ b/pkg/tcpip/transport/raw/endpoint.go
@@ -533,14 +533,10 @@ func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
- switch o := opt.(type) {
+ switch opt.(type) {
case tcpip.ErrorOption:
return nil
- case *tcpip.KeepaliveEnabledOption:
- *o = 0
- return nil
-
default:
return tcpip.ErrUnknownProtocolOption
}
@@ -548,7 +544,13 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrUnknownProtocolOption
+ switch opt {
+ case tcpip.KeepaliveEnabledOption:
+ return false, nil
+
+ default:
+ return false, tcpip.ErrUnknownProtocolOption
+ }
}
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
@@ -576,9 +578,9 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
e.rcvMu.Unlock()
return v, nil
+ default:
+ return -1, tcpip.ErrUnknownProtocolOption
}
-
- return -1, tcpip.ErrUnknownProtocolOption
}
// HandlePacket implements stack.RawTransportEndpoint.HandlePacket.
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go
index 9b123e968..a8d443f73 100644
--- a/pkg/tcpip/transport/tcp/endpoint.go
+++ b/pkg/tcpip/transport/tcp/endpoint.go
@@ -821,7 +821,7 @@ func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, waiterQue
var de DelayEnabled
if err := s.TransportProtocolOption(ProtocolNumber, &de); err == nil && de {
- e.SetSockOptInt(tcpip.DelayOption, 1)
+ e.SetSockOptBool(tcpip.DelayOption, true)
}
var tcpLT tcpip.TCPLingerTimeoutOption
@@ -1409,10 +1409,60 @@ func (e *endpoint) windowCrossedACKThresholdLocked(deltaBefore int) (crossed boo
// SetSockOptBool sets a socket option.
func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- e.LockUser()
- defer e.UnlockUser()
-
switch opt {
+
+ case tcpip.BroadcastOption:
+ e.LockUser()
+ e.broadcast = v
+ e.UnlockUser()
+
+ case tcpip.CorkOption:
+ e.LockUser()
+ if !v {
+ atomic.StoreUint32(&e.cork, 0)
+
+ // Handle the corked data.
+ e.sndWaker.Assert()
+ } else {
+ atomic.StoreUint32(&e.cork, 1)
+ }
+ e.UnlockUser()
+
+ case tcpip.DelayOption:
+ if v {
+ atomic.StoreUint32(&e.delay, 1)
+ } else {
+ atomic.StoreUint32(&e.delay, 0)
+
+ // Handle delayed data.
+ e.sndWaker.Assert()
+ }
+
+ case tcpip.KeepaliveEnabledOption:
+ e.keepalive.Lock()
+ e.keepalive.enabled = v
+ e.keepalive.Unlock()
+ e.notifyProtocolGoroutine(notifyKeepaliveChanged)
+
+ case tcpip.QuickAckOption:
+ o := uint32(1)
+ if v {
+ o = 0
+ }
+ atomic.StoreUint32(&e.slowAck, o)
+
+ case tcpip.ReuseAddressOption:
+ e.LockUser()
+ e.reuseAddr = v
+ e.UnlockUser()
+ return nil
+
+ case tcpip.ReusePortOption:
+ e.LockUser()
+ e.reusePort = v
+ e.UnlockUser()
+ return nil
+
case tcpip.V6OnlyOption:
// We only recognize this option on v6 endpoints.
if e.NetProto != header.IPv6ProtocolNumber {
@@ -1424,7 +1474,11 @@ func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
return tcpip.ErrInvalidEndpointState
}
+ e.LockUser()
e.v6only = v
+ e.UnlockUser()
+ default:
+ return tcpip.ErrUnknownProtocolOption
}
return nil
@@ -1432,7 +1486,40 @@ func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
// SetSockOptInt sets a socket option.
func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
+ // Lower 2 bits represents ECN bits. RFC 3168, section 23.1
+ const inetECNMask = 3
+
switch opt {
+ case tcpip.KeepaliveCountOption:
+ e.keepalive.Lock()
+ e.keepalive.count = int(v)
+ e.keepalive.Unlock()
+ e.notifyProtocolGoroutine(notifyKeepaliveChanged)
+
+ case tcpip.IPv4TOSOption:
+ e.LockUser()
+ // TODO(gvisor.dev/issue/995): ECN is not currently supported,
+ // ignore the bits for now.
+ e.sendTOS = uint8(v) & ^uint8(inetECNMask)
+ e.UnlockUser()
+
+ case tcpip.IPv6TrafficClassOption:
+ e.LockUser()
+ // TODO(gvisor.dev/issue/995): ECN is not currently supported,
+ // ignore the bits for now.
+ e.sendTOS = uint8(v) & ^uint8(inetECNMask)
+ e.UnlockUser()
+
+ case tcpip.MaxSegOption:
+ userMSS := v
+ if userMSS < header.TCPMinimumMSS || userMSS > header.TCPMaximumMSS {
+ return tcpip.ErrInvalidOptionValue
+ }
+ e.LockUser()
+ e.userMSS = uint16(userMSS)
+ e.UnlockUser()
+ e.notifyProtocolGoroutine(notifyMSSChanged)
+
case tcpip.ReceiveBufferSizeOption:
// Make sure the receive buffer size is within the min and max
// allowed.
@@ -1483,7 +1570,6 @@ func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
e.rcvListMu.Unlock()
e.UnlockUser()
e.notifyProtocolGoroutine(mask)
- return nil
case tcpip.SendBufferSizeOption:
// Make sure the send buffer size is within the min and max
@@ -1502,52 +1588,21 @@ func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
e.sndBufMu.Lock()
e.sndBufSize = size
e.sndBufMu.Unlock()
- return nil
- case tcpip.DelayOption:
- if v == 0 {
- atomic.StoreUint32(&e.delay, 0)
-
- // Handle delayed data.
- e.sndWaker.Assert()
- } else {
- atomic.StoreUint32(&e.delay, 1)
- }
- return nil
+ case tcpip.TTLOption:
+ e.LockUser()
+ e.ttl = uint8(v)
+ e.UnlockUser()
default:
- return nil
+ return tcpip.ErrUnknownProtocolOption
}
+ return nil
}
// SetSockOpt sets a socket option.
func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
- // Lower 2 bits represents ECN bits. RFC 3168, section 23.1
- const inetECNMask = 3
switch v := opt.(type) {
- case tcpip.CorkOption:
- if v == 0 {
- atomic.StoreUint32(&e.cork, 0)
-
- // Handle the corked data.
- e.sndWaker.Assert()
- } else {
- atomic.StoreUint32(&e.cork, 1)
- }
- return nil
-
- case tcpip.ReuseAddressOption:
- e.LockUser()
- e.reuseAddr = v != 0
- e.UnlockUser()
- return nil
-
- case tcpip.ReusePortOption:
- e.LockUser()
- e.reusePort = v != 0
- e.UnlockUser()
- return nil
-
case tcpip.BindToDeviceOption:
id := tcpip.NICID(v)
if id != 0 && !e.stack.HasNIC(id) {
@@ -1556,72 +1611,26 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
e.LockUser()
e.bindToDevice = id
e.UnlockUser()
- return nil
-
- case tcpip.QuickAckOption:
- if v == 0 {
- atomic.StoreUint32(&e.slowAck, 1)
- } else {
- atomic.StoreUint32(&e.slowAck, 0)
- }
- return nil
-
- case tcpip.MaxSegOption:
- userMSS := v
- if userMSS < header.TCPMinimumMSS || userMSS > header.TCPMaximumMSS {
- return tcpip.ErrInvalidOptionValue
- }
- e.LockUser()
- e.userMSS = uint16(userMSS)
- e.UnlockUser()
- e.notifyProtocolGoroutine(notifyMSSChanged)
- return nil
-
- case tcpip.TTLOption:
- e.LockUser()
- e.ttl = uint8(v)
- e.UnlockUser()
- return nil
-
- case tcpip.KeepaliveEnabledOption:
- e.keepalive.Lock()
- e.keepalive.enabled = v != 0
- e.keepalive.Unlock()
- e.notifyProtocolGoroutine(notifyKeepaliveChanged)
- return nil
case tcpip.KeepaliveIdleOption:
e.keepalive.Lock()
e.keepalive.idle = time.Duration(v)
e.keepalive.Unlock()
e.notifyProtocolGoroutine(notifyKeepaliveChanged)
- return nil
case tcpip.KeepaliveIntervalOption:
e.keepalive.Lock()
e.keepalive.interval = time.Duration(v)
e.keepalive.Unlock()
e.notifyProtocolGoroutine(notifyKeepaliveChanged)
- return nil
- case tcpip.KeepaliveCountOption:
- e.keepalive.Lock()
- e.keepalive.count = int(v)
- e.keepalive.Unlock()
- e.notifyProtocolGoroutine(notifyKeepaliveChanged)
- return nil
+ case tcpip.OutOfBandInlineOption:
+ // We don't currently support disabling this option.
case tcpip.TCPUserTimeoutOption:
e.LockUser()
e.userTimeout = time.Duration(v)
e.UnlockUser()
- return nil
-
- case tcpip.BroadcastOption:
- e.LockUser()
- e.broadcast = v != 0
- e.UnlockUser()
- return nil
case tcpip.CongestionControlOption:
// Query the available cc algorithms in the stack and
@@ -1652,22 +1661,6 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
// control algorithm is specified.
return tcpip.ErrNoSuchFile
- case tcpip.IPv4TOSOption:
- e.LockUser()
- // TODO(gvisor.dev/issue/995): ECN is not currently supported,
- // ignore the bits for now.
- e.sendTOS = uint8(v) & ^uint8(inetECNMask)
- e.UnlockUser()
- return nil
-
- case tcpip.IPv6TrafficClassOption:
- e.LockUser()
- // TODO(gvisor.dev/issue/995): ECN is not currently supported,
- // ignore the bits for now.
- e.sendTOS = uint8(v) & ^uint8(inetECNMask)
- e.UnlockUser()
- return nil
-
case tcpip.TCPLingerTimeoutOption:
e.LockUser()
if v < 0 {
@@ -1688,7 +1681,6 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
}
e.tcpLingerTimeout = time.Duration(v)
e.UnlockUser()
- return nil
case tcpip.TCPDeferAcceptOption:
e.LockUser()
@@ -1697,11 +1689,11 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
}
e.deferAccept = time.Duration(v)
e.UnlockUser()
- return nil
default:
return nil
}
+ return nil
}
// readyReceiveSize returns the number of bytes ready to be received.
@@ -1723,6 +1715,43 @@ func (e *endpoint) readyReceiveSize() (int, *tcpip.Error) {
// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
switch opt {
+ case tcpip.BroadcastOption:
+ e.LockUser()
+ v := e.broadcast
+ e.UnlockUser()
+ return v, nil
+
+ case tcpip.CorkOption:
+ return atomic.LoadUint32(&e.cork) != 0, nil
+
+ case tcpip.DelayOption:
+ return atomic.LoadUint32(&e.delay) != 0, nil
+
+ case tcpip.KeepaliveEnabledOption:
+ e.keepalive.Lock()
+ v := e.keepalive.enabled
+ e.keepalive.Unlock()
+
+ return v, nil
+
+ case tcpip.QuickAckOption:
+ v := atomic.LoadUint32(&e.slowAck) == 0
+ return v, nil
+
+ case tcpip.ReuseAddressOption:
+ e.LockUser()
+ v := e.reuseAddr
+ e.UnlockUser()
+
+ return v, nil
+
+ case tcpip.ReusePortOption:
+ e.LockUser()
+ v := e.reusePort
+ e.UnlockUser()
+
+ return v, nil
+
case tcpip.V6OnlyOption:
// We only recognize this option on v6 endpoints.
if e.NetProto != header.IPv6ProtocolNumber {
@@ -1734,14 +1763,41 @@ func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
e.UnlockUser()
return v, nil
- }
- return false, tcpip.ErrUnknownProtocolOption
+ default:
+ return false, tcpip.ErrUnknownProtocolOption
+ }
}
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
+ case tcpip.KeepaliveCountOption:
+ e.keepalive.Lock()
+ v := e.keepalive.count
+ e.keepalive.Unlock()
+ return v, nil
+
+ case tcpip.IPv4TOSOption:
+ e.LockUser()
+ v := int(e.sendTOS)
+ e.UnlockUser()
+ return v, nil
+
+ case tcpip.IPv6TrafficClassOption:
+ e.LockUser()
+ v := int(e.sendTOS)
+ e.UnlockUser()
+ return v, nil
+
+ case tcpip.MaxSegOption:
+ // This is just stubbed out. Linux never returns the user_mss
+ // value as it either returns the defaultMSS or returns the
+ // actual current MSS. Netstack just returns the defaultMSS
+ // always for now.
+ v := header.TCPDefaultMSS
+ return v, nil
+
case tcpip.ReceiveQueueSizeOption:
return e.readyReceiveSize()
@@ -1757,12 +1813,11 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
e.rcvListMu.Unlock()
return v, nil
- case tcpip.DelayOption:
- var o int
- if v := atomic.LoadUint32(&e.delay); v != 0 {
- o = 1
- }
- return o, nil
+ case tcpip.TTLOption:
+ e.LockUser()
+ v := int(e.ttl)
+ e.UnlockUser()
+ return v, nil
default:
return -1, tcpip.ErrUnknownProtocolOption
@@ -1779,61 +1834,10 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
e.lastErrorMu.Unlock()
return err
- case *tcpip.MaxSegOption:
- // This is just stubbed out. Linux never returns the user_mss
- // value as it either returns the defaultMSS or returns the
- // actual current MSS. Netstack just returns the defaultMSS
- // always for now.
- *o = header.TCPDefaultMSS
- return nil
-
- case *tcpip.CorkOption:
- *o = 0
- if v := atomic.LoadUint32(&e.cork); v != 0 {
- *o = 1
- }
- return nil
-
- case *tcpip.ReuseAddressOption:
- e.LockUser()
- v := e.reuseAddr
- e.UnlockUser()
-
- *o = 0
- if v {
- *o = 1
- }
- return nil
-
- case *tcpip.ReusePortOption:
- e.LockUser()
- v := e.reusePort
- e.UnlockUser()
-
- *o = 0
- if v {
- *o = 1
- }
- return nil
-
case *tcpip.BindToDeviceOption:
e.LockUser()
*o = tcpip.BindToDeviceOption(e.bindToDevice)
e.UnlockUser()
- return nil
-
- case *tcpip.QuickAckOption:
- *o = 1
- if v := atomic.LoadUint32(&e.slowAck); v != 0 {
- *o = 0
- }
- return nil
-
- case *tcpip.TTLOption:
- e.LockUser()
- *o = tcpip.TTLOption(e.ttl)
- e.UnlockUser()
- return nil
case *tcpip.TCPInfoOption:
*o = tcpip.TCPInfoOption{}
@@ -1846,92 +1850,45 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
o.RTTVar = snd.rtt.rttvar
snd.rtt.Unlock()
}
- return nil
-
- case *tcpip.KeepaliveEnabledOption:
- e.keepalive.Lock()
- v := e.keepalive.enabled
- e.keepalive.Unlock()
-
- *o = 0
- if v {
- *o = 1
- }
- return nil
case *tcpip.KeepaliveIdleOption:
e.keepalive.Lock()
*o = tcpip.KeepaliveIdleOption(e.keepalive.idle)
e.keepalive.Unlock()
- return nil
case *tcpip.KeepaliveIntervalOption:
e.keepalive.Lock()
*o = tcpip.KeepaliveIntervalOption(e.keepalive.interval)
e.keepalive.Unlock()
- return nil
-
- case *tcpip.KeepaliveCountOption:
- e.keepalive.Lock()
- *o = tcpip.KeepaliveCountOption(e.keepalive.count)
- e.keepalive.Unlock()
- return nil
case *tcpip.TCPUserTimeoutOption:
e.LockUser()
*o = tcpip.TCPUserTimeoutOption(e.userTimeout)
e.UnlockUser()
- return nil
case *tcpip.OutOfBandInlineOption:
// We don't currently support disabling this option.
*o = 1
- return nil
-
- case *tcpip.BroadcastOption:
- e.LockUser()
- v := e.broadcast
- e.UnlockUser()
-
- *o = 0
- if v {
- *o = 1
- }
- return nil
case *tcpip.CongestionControlOption:
e.LockUser()
*o = e.cc
e.UnlockUser()
- return nil
-
- case *tcpip.IPv4TOSOption:
- e.LockUser()
- *o = tcpip.IPv4TOSOption(e.sendTOS)
- e.UnlockUser()
- return nil
-
- case *tcpip.IPv6TrafficClassOption:
- e.LockUser()
- *o = tcpip.IPv6TrafficClassOption(e.sendTOS)
- e.UnlockUser()
- return nil
case *tcpip.TCPLingerTimeoutOption:
e.LockUser()
*o = tcpip.TCPLingerTimeoutOption(e.tcpLingerTimeout)
e.UnlockUser()
- return nil
case *tcpip.TCPDeferAcceptOption:
e.LockUser()
*o = tcpip.TCPDeferAcceptOption(e.deferAccept)
e.UnlockUser()
- return nil
default:
return tcpip.ErrUnknownProtocolOption
}
+ return nil
}
// checkV4MappedLocked determines the effective network protocol and converts
diff --git a/pkg/tcpip/transport/tcp/tcp_test.go b/pkg/tcpip/transport/tcp/tcp_test.go
index ce3df7478..32d0af6c4 100644
--- a/pkg/tcpip/transport/tcp/tcp_test.go
+++ b/pkg/tcpip/transport/tcp/tcp_test.go
@@ -728,7 +728,7 @@ func TestUserSuppliedMSSOnConnectV4(t *testing.T) {
const maxMSS = mtu - header.IPv4MinimumSize - header.TCPMinimumSize
tests := []struct {
name string
- setMSS uint16
+ setMSS int
expMSS uint16
}{
{
@@ -756,15 +756,14 @@ func TestUserSuppliedMSSOnConnectV4(t *testing.T) {
c.Create(-1)
// Set the MSS socket option.
- opt := tcpip.MaxSegOption(test.setMSS)
- if err := c.EP.SetSockOpt(opt); err != nil {
- t.Fatalf("SetSockOpt(%#v) failed: %s", opt, err)
+ if err := c.EP.SetSockOptInt(tcpip.MaxSegOption, test.setMSS); err != nil {
+ t.Fatalf("SetSockOptInt(MaxSegOption, %d) failed: %s", test.setMSS, err)
}
// Get expected window size.
rcvBufSize, err := c.EP.GetSockOptInt(tcpip.ReceiveBufferSizeOption)
if err != nil {
- t.Fatalf("GetSockOpt(%v) failed: %s", tcpip.ReceiveBufferSizeOption, err)
+ t.Fatalf("GetSockOptInt(ReceiveBufferSizeOption) failed: %s", err)
}
ws := tcp.FindWndScale(seqnum.Size(rcvBufSize))
@@ -818,15 +817,14 @@ func TestUserSuppliedMSSOnConnectV6(t *testing.T) {
c.CreateV6Endpoint(true)
// Set the MSS socket option.
- opt := tcpip.MaxSegOption(test.setMSS)
- if err := c.EP.SetSockOpt(opt); err != nil {
- t.Fatalf("SetSockOpt(%#v) failed: %s", opt, err)
+ if err := c.EP.SetSockOptInt(tcpip.MaxSegOption, int(test.setMSS)); err != nil {
+ t.Fatalf("SetSockOptInt(MaxSegOption, %d) failed: %s", test.setMSS, err)
}
// Get expected window size.
rcvBufSize, err := c.EP.GetSockOptInt(tcpip.ReceiveBufferSizeOption)
if err != nil {
- t.Fatalf("GetSockOpt(%v) failed: %s", tcpip.ReceiveBufferSizeOption, err)
+ t.Fatalf("GetSockOptInt(ReceiveBufferSizeOption) failed: %s", err)
}
ws := tcp.FindWndScale(seqnum.Size(rcvBufSize))
@@ -1077,17 +1075,17 @@ func TestTOSV4(t *testing.T) {
c.EP = ep
const tos = 0xC0
- if err := c.EP.SetSockOpt(tcpip.IPv4TOSOption(tos)); err != nil {
- t.Errorf("SetSockOpt(%#v) failed: %s", tcpip.IPv4TOSOption(tos), err)
+ if err := c.EP.SetSockOptInt(tcpip.IPv4TOSOption, tos); err != nil {
+ t.Errorf("SetSockOptInt(IPv4TOSOption, %d) failed: %s", tos, err)
}
- var v tcpip.IPv4TOSOption
- if err := c.EP.GetSockOpt(&v); err != nil {
- t.Errorf("GetSockopt failed: %s", err)
+ v, err := c.EP.GetSockOptInt(tcpip.IPv4TOSOption)
+ if err != nil {
+ t.Errorf("GetSockoptInt(IPv4TOSOption) failed: %s", err)
}
- if want := tcpip.IPv4TOSOption(tos); v != want {
- t.Errorf("got GetSockOpt(...) = %#v, want = %#v", v, want)
+ if v != tos {
+ t.Errorf("got GetSockOptInt(IPv4TOSOption) = %d, want = %d", v, tos)
}
testV4Connect(t, c, checker.TOS(tos, 0))
@@ -1125,17 +1123,17 @@ func TestTrafficClassV6(t *testing.T) {
c.CreateV6Endpoint(false)
const tos = 0xC0
- if err := c.EP.SetSockOpt(tcpip.IPv6TrafficClassOption(tos)); err != nil {
- t.Errorf("SetSockOpt(%#v) failed: %s", tcpip.IPv6TrafficClassOption(tos), err)
+ if err := c.EP.SetSockOptInt(tcpip.IPv6TrafficClassOption, tos); err != nil {
+ t.Errorf("SetSockOpInt(IPv6TrafficClassOption, %d) failed: %s", tos, err)
}
- var v tcpip.IPv6TrafficClassOption
- if err := c.EP.GetSockOpt(&v); err != nil {
- t.Fatalf("GetSockopt failed: %s", err)
+ v, err := c.EP.GetSockOptInt(tcpip.IPv6TrafficClassOption)
+ if err != nil {
+ t.Fatalf("GetSockoptInt(IPv6TrafficClassOption) failed: %s", err)
}
- if want := tcpip.IPv6TrafficClassOption(tos); v != want {
- t.Errorf("got GetSockOpt(...) = %#v, want = %#v", v, want)
+ if v != tos {
+ t.Errorf("got GetSockOptInt(IPv6TrafficClassOption) = %d, want = %d", v, tos)
}
// Test the connection request.
@@ -1711,7 +1709,7 @@ func TestNoWindowShrinking(t *testing.T) {
c.CreateConnected(789, 30000, 10)
if err := c.EP.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 5); err != nil {
- t.Fatalf("SetSockOpt failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption, 5) failed: %v", err)
}
we, ch := waiter.NewChannelEntry(nil)
@@ -1984,7 +1982,7 @@ func TestScaledWindowAccept(t *testing.T) {
// Set the window size greater than the maximum non-scaled window.
if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 65535*3); err != nil {
- t.Fatalf("SetSockOpt failed failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption, 65535*3) failed failed: %v", err)
}
if err := ep.Bind(tcpip.FullAddress{Port: context.StackPort}); err != nil {
@@ -2057,7 +2055,7 @@ func TestNonScaledWindowAccept(t *testing.T) {
// Set the window size greater than the maximum non-scaled window.
if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 65535*3); err != nil {
- t.Fatalf("SetSockOpt failed failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption, 65535*3) failed failed: %v", err)
}
if err := ep.Bind(tcpip.FullAddress{Port: context.StackPort}); err != nil {
@@ -2221,10 +2219,10 @@ func TestSegmentMerging(t *testing.T) {
{
"cork",
func(ep tcpip.Endpoint) {
- ep.SetSockOpt(tcpip.CorkOption(1))
+ ep.SetSockOptBool(tcpip.CorkOption, true)
},
func(ep tcpip.Endpoint) {
- ep.SetSockOpt(tcpip.CorkOption(0))
+ ep.SetSockOptBool(tcpip.CorkOption, false)
},
},
}
@@ -2316,7 +2314,7 @@ func TestDelay(t *testing.T) {
c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
- c.EP.SetSockOptInt(tcpip.DelayOption, 1)
+ c.EP.SetSockOptBool(tcpip.DelayOption, true)
var allData []byte
for i, data := range [][]byte{{0}, {1, 2, 3, 4}, {5, 6, 7}, {8, 9}, {10}, {11}} {
@@ -2364,7 +2362,7 @@ func TestUndelay(t *testing.T) {
c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
- c.EP.SetSockOptInt(tcpip.DelayOption, 1)
+ c.EP.SetSockOptBool(tcpip.DelayOption, true)
allData := [][]byte{{0}, {1, 2, 3}}
for i, data := range allData {
@@ -2397,7 +2395,7 @@ func TestUndelay(t *testing.T) {
// Check that we don't get the second packet yet.
c.CheckNoPacketTimeout("delayed second packet transmitted", 100*time.Millisecond)
- c.EP.SetSockOptInt(tcpip.DelayOption, 0)
+ c.EP.SetSockOptBool(tcpip.DelayOption, false)
// Check that data is received.
second := c.GetPacket()
@@ -2434,8 +2432,8 @@ func TestMSSNotDelayed(t *testing.T) {
fn func(tcpip.Endpoint)
}{
{"no-op", func(tcpip.Endpoint) {}},
- {"delay", func(ep tcpip.Endpoint) { ep.SetSockOptInt(tcpip.DelayOption, 1) }},
- {"cork", func(ep tcpip.Endpoint) { ep.SetSockOpt(tcpip.CorkOption(1)) }},
+ {"delay", func(ep tcpip.Endpoint) { ep.SetSockOptBool(tcpip.DelayOption, true) }},
+ {"cork", func(ep tcpip.Endpoint) { ep.SetSockOptBool(tcpip.CorkOption, true) }},
}
for _, test := range tests {
@@ -2576,12 +2574,12 @@ func TestSetTTL(t *testing.T) {
t.Fatalf("NewEndpoint failed: %v", err)
}
- if err := c.EP.SetSockOpt(tcpip.TTLOption(wantTTL)); err != nil {
- t.Fatalf("SetSockOpt failed: %v", err)
+ if err := c.EP.SetSockOptInt(tcpip.TTLOption, int(wantTTL)); err != nil {
+ t.Fatalf("SetSockOptInt(TTLOption, %d) failed: %s", wantTTL, err)
}
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)
+ t.Fatalf("Unexpected return value from Connect: %s", err)
}
// Receive SYN packet.
@@ -2621,7 +2619,7 @@ func TestPassiveSendMSSLessThanMTU(t *testing.T) {
// window scaling option.
const rcvBufferSize = 0x20000
if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, rcvBufferSize); err != nil {
- t.Fatalf("SetSockOpt failed failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption, %d) failed failed: %s", rcvBufferSize, err)
}
if err := ep.Bind(tcpip.FullAddress{Port: context.StackPort}); err != nil {
@@ -2765,7 +2763,7 @@ func TestSynOptionsOnActiveConnect(t *testing.T) {
const rcvBufferSize = 0x20000
const wndScale = 2
if err := c.EP.SetSockOptInt(tcpip.ReceiveBufferSizeOption, rcvBufferSize); err != nil {
- t.Fatalf("SetSockOpt failed failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption, %d) failed failed: %s", rcvBufferSize, err)
}
// Start connection attempt.
@@ -3882,26 +3880,26 @@ func TestMinMaxBufferSizes(t *testing.T) {
// Set values below the min.
if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 199); err != nil {
- t.Fatalf("GetSockOpt failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption, 199) failed: %s", err)
}
checkRecvBufferSize(t, ep, 200)
if err := ep.SetSockOptInt(tcpip.SendBufferSizeOption, 299); err != nil {
- t.Fatalf("GetSockOpt failed: %v", err)
+ t.Fatalf("SetSockOptInt(SendBufferSizeOption, 299) failed: %s", err)
}
checkSendBufferSize(t, ep, 300)
// Set values above the max.
if err := ep.SetSockOptInt(tcpip.ReceiveBufferSizeOption, 1+tcp.DefaultReceiveBufferSize*20); err != nil {
- t.Fatalf("GetSockOpt failed: %v", err)
+ t.Fatalf("SetSockOptInt(ReceiveBufferSizeOption) failed: %s", err)
}
checkRecvBufferSize(t, ep, tcp.DefaultReceiveBufferSize*20)
if err := ep.SetSockOptInt(tcpip.SendBufferSizeOption, 1+tcp.DefaultSendBufferSize*30); err != nil {
- t.Fatalf("GetSockOpt failed: %v", err)
+ t.Fatalf("SetSockOptInt(SendBufferSizeOption) failed: %s", err)
}
checkSendBufferSize(t, ep, tcp.DefaultSendBufferSize*30)
@@ -4147,11 +4145,11 @@ func TestConnectAvoidsBoundPorts(t *testing.T) {
case "ipv4":
case "ipv6":
if err := ep.SetSockOptBool(tcpip.V6OnlyOption, true); err != nil {
- t.Fatalf("SetSockOpt(V6OnlyOption(true)) failed: %v", err)
+ t.Fatalf("SetSockOptBool(V6OnlyOption(true)) failed: %s", err)
}
case "dual":
if err := ep.SetSockOptBool(tcpip.V6OnlyOption, false); err != nil {
- t.Fatalf("SetSockOpt(V6OnlyOption(false)) failed: %v", err)
+ t.Fatalf("SetSockOptBool(V6OnlyOption(false)) failed: %s", err)
}
default:
t.Fatalf("unknown network: '%s'", network)
@@ -4477,8 +4475,8 @@ func TestKeepalive(t *testing.T) {
const keepAliveInterval = 10 * time.Millisecond
c.EP.SetSockOpt(tcpip.KeepaliveIdleOption(10 * time.Millisecond))
c.EP.SetSockOpt(tcpip.KeepaliveIntervalOption(keepAliveInterval))
- c.EP.SetSockOpt(tcpip.KeepaliveCountOption(5))
- c.EP.SetSockOpt(tcpip.KeepaliveEnabledOption(1))
+ c.EP.SetSockOptInt(tcpip.KeepaliveCountOption, 5)
+ c.EP.SetSockOptBool(tcpip.KeepaliveEnabledOption, true)
// 5 unacked keepalives are sent. ACK each one, and check that the
// connection stays alive after 5.
@@ -5770,14 +5768,14 @@ func TestReceiveBufferAutoTuning(t *testing.T) {
func TestDelayEnabled(t *testing.T) {
c := context.New(t, defaultMTU)
defer c.Cleanup()
- checkDelayOption(t, c, false, 0) // Delay is disabled by default.
+ checkDelayOption(t, c, false, false) // Delay is disabled by default.
for _, v := range []struct {
delayEnabled tcp.DelayEnabled
- wantDelayOption int
+ wantDelayOption bool
}{
- {delayEnabled: false, wantDelayOption: 0},
- {delayEnabled: true, wantDelayOption: 1},
+ {delayEnabled: false, wantDelayOption: false},
+ {delayEnabled: true, wantDelayOption: true},
} {
c := context.New(t, defaultMTU)
defer c.Cleanup()
@@ -5788,7 +5786,7 @@ func TestDelayEnabled(t *testing.T) {
}
}
-func checkDelayOption(t *testing.T, c *context.Context, wantDelayEnabled tcp.DelayEnabled, wantDelayOption int) {
+func checkDelayOption(t *testing.T, c *context.Context, wantDelayEnabled tcp.DelayEnabled, wantDelayOption bool) {
t.Helper()
var gotDelayEnabled tcp.DelayEnabled
@@ -5803,12 +5801,12 @@ func checkDelayOption(t *testing.T, c *context.Context, wantDelayEnabled tcp.Del
if err != nil {
t.Fatalf("NewEndPoint(tcp, ipv4, new(waiter.Queue)) failed: %v", err)
}
- gotDelayOption, err := ep.GetSockOptInt(tcpip.DelayOption)
+ gotDelayOption, err := ep.GetSockOptBool(tcpip.DelayOption)
if err != nil {
- t.Fatalf("ep.GetSockOptInt(tcpip.DelayOption) failed: %v", err)
+ t.Fatalf("ep.GetSockOptBool(tcpip.DelayOption) failed: %s", err)
}
if gotDelayOption != wantDelayOption {
- t.Errorf("ep.GetSockOptInt(tcpip.DelayOption) got: %d, want: %d", gotDelayOption, wantDelayOption)
+ t.Errorf("ep.GetSockOptBool(tcpip.DelayOption) got: %t, want: %t", gotDelayOption, wantDelayOption)
}
}
@@ -6620,8 +6618,8 @@ func TestKeepaliveWithUserTimeout(t *testing.T) {
const keepAliveInterval = 10 * time.Millisecond
c.EP.SetSockOpt(tcpip.KeepaliveIdleOption(10 * time.Millisecond))
c.EP.SetSockOpt(tcpip.KeepaliveIntervalOption(keepAliveInterval))
- c.EP.SetSockOpt(tcpip.KeepaliveCountOption(10))
- c.EP.SetSockOpt(tcpip.KeepaliveEnabledOption(1))
+ c.EP.SetSockOptInt(tcpip.KeepaliveCountOption, 10)
+ c.EP.SetSockOptBool(tcpip.KeepaliveEnabledOption, true)
// Set userTimeout to be the duration for 3 keepalive probes.
userTimeout := 30 * time.Millisecond
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go
index 120d3baa3..492cc1fcb 100644
--- a/pkg/tcpip/transport/udp/endpoint.go
+++ b/pkg/tcpip/transport/udp/endpoint.go
@@ -501,11 +501,20 @@ func (e *endpoint) Peek([][]byte) (int64, tcpip.ControlMessages, *tcpip.Error) {
// SetSockOptBool implements tcpip.Endpoint.SetSockOptBool.
func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
switch opt {
+ case tcpip.BroadcastOption:
+ e.mu.Lock()
+ e.broadcast = v
+ e.mu.Unlock()
+
+ case tcpip.MulticastLoopOption:
+ e.mu.Lock()
+ e.multicastLoop = v
+ e.mu.Unlock()
+
case tcpip.ReceiveTOSOption:
e.mu.Lock()
e.receiveTOS = v
e.mu.Unlock()
- return nil
case tcpip.ReceiveTClassOption:
// We only support this option on v6 endpoints.
@@ -516,7 +525,18 @@ func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
e.mu.Lock()
e.receiveTClass = v
e.mu.Unlock()
- return nil
+
+ case tcpip.ReceiveIPPacketInfoOption:
+ e.mu.Lock()
+ e.receiveIPPacketInfo = v
+ e.mu.Unlock()
+
+ case tcpip.ReuseAddressOption:
+
+ case tcpip.ReusePortOption:
+ e.mu.Lock()
+ e.reusePort = v
+ e.mu.Unlock()
case tcpip.V6OnlyOption:
// We only recognize this option on v6 endpoints.
@@ -533,13 +553,8 @@ func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
}
e.v6only = v
- return nil
-
- case tcpip.ReceiveIPPacketInfoOption:
- e.mu.Lock()
- e.receiveIPPacketInfo = v
- e.mu.Unlock()
- return nil
+ default:
+ return tcpip.ErrUnknownProtocolOption
}
return nil
@@ -547,22 +562,40 @@ func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
// SetSockOptInt implements tcpip.Endpoint.SetSockOptInt.
func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
- return nil
-}
+ switch opt {
+ case tcpip.MulticastTTLOption:
+ e.mu.Lock()
+ e.multicastTTL = uint8(v)
+ e.mu.Unlock()
-// SetSockOpt implements tcpip.Endpoint.SetSockOpt.
-func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
- switch v := opt.(type) {
case tcpip.TTLOption:
e.mu.Lock()
e.ttl = uint8(v)
e.mu.Unlock()
- case tcpip.MulticastTTLOption:
+ case tcpip.IPv4TOSOption:
e.mu.Lock()
- e.multicastTTL = uint8(v)
+ e.sendTOS = uint8(v)
+ e.mu.Unlock()
+
+ case tcpip.IPv6TrafficClassOption:
+ e.mu.Lock()
+ e.sendTOS = uint8(v)
e.mu.Unlock()
+ case tcpip.ReceiveBufferSizeOption:
+ case tcpip.SendBufferSizeOption:
+
+ default:
+ return tcpip.ErrUnknownProtocolOption
+ }
+
+ return nil
+}
+
+// SetSockOpt implements tcpip.Endpoint.SetSockOpt.
+func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
+ switch v := opt.(type) {
case tcpip.MulticastInterfaceOption:
e.mu.Lock()
defer e.mu.Unlock()
@@ -686,16 +719,6 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
e.multicastMemberships[memToRemoveIndex] = e.multicastMemberships[len(e.multicastMemberships)-1]
e.multicastMemberships = e.multicastMemberships[:len(e.multicastMemberships)-1]
- case tcpip.MulticastLoopOption:
- e.mu.Lock()
- e.multicastLoop = bool(v)
- e.mu.Unlock()
-
- case tcpip.ReusePortOption:
- e.mu.Lock()
- e.reusePort = v != 0
- e.mu.Unlock()
-
case tcpip.BindToDeviceOption:
id := tcpip.NICID(v)
if id != 0 && !e.stack.HasNIC(id) {
@@ -704,26 +727,6 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
e.mu.Lock()
e.bindToDevice = id
e.mu.Unlock()
- return nil
-
- case tcpip.BroadcastOption:
- e.mu.Lock()
- e.broadcast = v != 0
- e.mu.Unlock()
-
- return nil
-
- case tcpip.IPv4TOSOption:
- e.mu.Lock()
- e.sendTOS = uint8(v)
- e.mu.Unlock()
- return nil
-
- case tcpip.IPv6TrafficClassOption:
- e.mu.Lock()
- e.sendTOS = uint8(v)
- e.mu.Unlock()
- return nil
}
return nil
}
@@ -731,6 +734,21 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
switch opt {
+ case tcpip.BroadcastOption:
+ e.mu.RLock()
+ v := e.broadcast
+ e.mu.RUnlock()
+ return v, nil
+
+ case tcpip.KeepaliveEnabledOption:
+ return false, nil
+
+ case tcpip.MulticastLoopOption:
+ e.mu.RLock()
+ v := e.multicastLoop
+ e.mu.RUnlock()
+ return v, nil
+
case tcpip.ReceiveTOSOption:
e.mu.RLock()
v := e.receiveTOS
@@ -748,6 +766,22 @@ func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
e.mu.RUnlock()
return v, nil
+ case tcpip.ReceiveIPPacketInfoOption:
+ e.mu.RLock()
+ v := e.receiveIPPacketInfo
+ e.mu.RUnlock()
+ return v, nil
+
+ case tcpip.ReuseAddressOption:
+ return false, nil
+
+ case tcpip.ReusePortOption:
+ e.mu.RLock()
+ v := e.reusePort
+ e.mu.RUnlock()
+
+ return v, nil
+
case tcpip.V6OnlyOption:
// We only recognize this option on v6 endpoints.
if e.NetProto != header.IPv6ProtocolNumber {
@@ -760,19 +794,32 @@ func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
return v, nil
- case tcpip.ReceiveIPPacketInfoOption:
- e.mu.RLock()
- v := e.receiveIPPacketInfo
- e.mu.RUnlock()
- return v, nil
+ default:
+ return false, tcpip.ErrUnknownProtocolOption
}
-
- return false, tcpip.ErrUnknownProtocolOption
}
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
+ case tcpip.IPv4TOSOption:
+ e.mu.RLock()
+ v := int(e.sendTOS)
+ e.mu.RUnlock()
+ return v, nil
+
+ case tcpip.IPv6TrafficClassOption:
+ e.mu.RLock()
+ v := int(e.sendTOS)
+ e.mu.RUnlock()
+ return v, nil
+
+ case tcpip.MulticastTTLOption:
+ e.mu.Lock()
+ v := int(e.multicastTTL)
+ e.mu.Unlock()
+ return v, nil
+
case tcpip.ReceiveQueueSizeOption:
v := 0
e.rcvMu.Lock()
@@ -794,29 +841,22 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
v := e.rcvBufSizeMax
e.rcvMu.Unlock()
return v, nil
- }
- return -1, tcpip.ErrUnknownProtocolOption
+ case tcpip.TTLOption:
+ e.mu.Lock()
+ v := int(e.ttl)
+ e.mu.Unlock()
+ return v, nil
+
+ default:
+ return -1, tcpip.ErrUnknownProtocolOption
+ }
}
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
switch o := opt.(type) {
case tcpip.ErrorOption:
- return nil
-
- case *tcpip.TTLOption:
- e.mu.Lock()
- *o = tcpip.TTLOption(e.ttl)
- e.mu.Unlock()
- return nil
-
- case *tcpip.MulticastTTLOption:
- e.mu.Lock()
- *o = tcpip.MulticastTTLOption(e.multicastTTL)
- e.mu.Unlock()
- return nil
-
case *tcpip.MulticastInterfaceOption:
e.mu.Lock()
*o = tcpip.MulticastInterfaceOption{
@@ -824,67 +864,16 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
e.multicastAddr,
}
e.mu.Unlock()
- return nil
-
- case *tcpip.MulticastLoopOption:
- e.mu.RLock()
- v := e.multicastLoop
- e.mu.RUnlock()
-
- *o = tcpip.MulticastLoopOption(v)
- return nil
-
- case *tcpip.ReuseAddressOption:
- *o = 0
- return nil
-
- case *tcpip.ReusePortOption:
- e.mu.RLock()
- v := e.reusePort
- e.mu.RUnlock()
-
- *o = 0
- if v {
- *o = 1
- }
- return nil
case *tcpip.BindToDeviceOption:
e.mu.RLock()
*o = tcpip.BindToDeviceOption(e.bindToDevice)
e.mu.RUnlock()
- return nil
-
- case *tcpip.KeepaliveEnabledOption:
- *o = 0
- return nil
-
- case *tcpip.BroadcastOption:
- e.mu.RLock()
- v := e.broadcast
- e.mu.RUnlock()
-
- *o = 0
- if v {
- *o = 1
- }
- return nil
-
- case *tcpip.IPv4TOSOption:
- e.mu.RLock()
- *o = tcpip.IPv4TOSOption(e.sendTOS)
- e.mu.RUnlock()
- return nil
-
- case *tcpip.IPv6TrafficClassOption:
- e.mu.RLock()
- *o = tcpip.IPv6TrafficClassOption(e.sendTOS)
- e.mu.RUnlock()
- return nil
default:
return tcpip.ErrUnknownProtocolOption
}
+ return nil
}
// sendUDP sends a UDP segment via the provided network endpoint and under the
diff --git a/pkg/tcpip/transport/udp/udp_test.go b/pkg/tcpip/transport/udp/udp_test.go
index 0905726c1..b3ee688b7 100644
--- a/pkg/tcpip/transport/udp/udp_test.go
+++ b/pkg/tcpip/transport/udp/udp_test.go
@@ -343,11 +343,11 @@ func (c *testContext) createEndpointForFlow(flow testFlow) {
c.createEndpoint(flow.sockProto())
if flow.isV6Only() {
if err := c.ep.SetSockOptBool(tcpip.V6OnlyOption, true); err != nil {
- c.t.Fatalf("SetSockOpt failed: %v", err)
+ c.t.Fatalf("SetSockOptBool failed: %s", err)
}
} else if flow.isBroadcast() {
- if err := c.ep.SetSockOpt(tcpip.BroadcastOption(1)); err != nil {
- c.t.Fatal("SetSockOpt failed:", err)
+ if err := c.ep.SetSockOptBool(tcpip.BroadcastOption, true); err != nil {
+ c.t.Fatalf("SetSockOptBool failed: %s", err)
}
}
}
@@ -1271,8 +1271,8 @@ func TestTTL(t *testing.T) {
c.createEndpointForFlow(flow)
const multicastTTL = 42
- if err := c.ep.SetSockOpt(tcpip.MulticastTTLOption(multicastTTL)); err != nil {
- c.t.Fatalf("SetSockOpt failed: %v", err)
+ if err := c.ep.SetSockOptInt(tcpip.MulticastTTLOption, multicastTTL); err != nil {
+ c.t.Fatalf("SetSockOptInt failed: %s", err)
}
var wantTTL uint8
@@ -1311,8 +1311,8 @@ func TestSetTTL(t *testing.T) {
c.createEndpointForFlow(flow)
- if err := c.ep.SetSockOpt(tcpip.TTLOption(wantTTL)); err != nil {
- c.t.Fatalf("SetSockOpt failed: %v", err)
+ if err := c.ep.SetSockOptInt(tcpip.TTLOption, int(wantTTL)); err != nil {
+ c.t.Fatalf("SetSockOptInt(TTLOption, %d) failed: %s", wantTTL, err)
}
var p stack.NetworkProtocol
@@ -1346,25 +1346,26 @@ func TestSetTOS(t *testing.T) {
c.createEndpointForFlow(flow)
const tos = testTOS
- var v tcpip.IPv4TOSOption
- if err := c.ep.GetSockOpt(&v); err != nil {
- c.t.Errorf("GetSockopt(%T) failed: %s", v, err)
+ v, err := c.ep.GetSockOptInt(tcpip.IPv4TOSOption)
+ if err != nil {
+ c.t.Errorf("GetSockOptInt(IPv4TOSOption) failed: %s", err)
}
// Test for expected default value.
if v != 0 {
- c.t.Errorf("got GetSockOpt(%T) = 0x%x, want = 0x%x", v, v, 0)
+ c.t.Errorf("got GetSockOpt(IPv4TOSOption) = 0x%x, want = 0x%x", v, 0)
}
- if err := c.ep.SetSockOpt(tcpip.IPv4TOSOption(tos)); err != nil {
- c.t.Errorf("SetSockOpt(%T, 0x%x) failed: %s", v, tcpip.IPv4TOSOption(tos), err)
+ if err := c.ep.SetSockOptInt(tcpip.IPv4TOSOption, tos); err != nil {
+ c.t.Errorf("SetSockOptInt(IPv4TOSOption, 0x%x) failed: %s", tos, err)
}
- if err := c.ep.GetSockOpt(&v); err != nil {
- c.t.Errorf("GetSockopt(%T) failed: %s", v, err)
+ v, err = c.ep.GetSockOptInt(tcpip.IPv4TOSOption)
+ if err != nil {
+ c.t.Errorf("GetSockOptInt(IPv4TOSOption) failed: %s", err)
}
- if want := tcpip.IPv4TOSOption(tos); v != want {
- c.t.Errorf("got GetSockOpt(%T) = 0x%x, want = 0x%x", v, v, want)
+ if v != tos {
+ c.t.Errorf("got GetSockOptInt(IPv4TOSOption) = 0x%x, want = 0x%x", v, tos)
}
testWrite(c, flow, checker.TOS(tos, 0))
@@ -1381,25 +1382,26 @@ func TestSetTClass(t *testing.T) {
c.createEndpointForFlow(flow)
const tClass = testTOS
- var v tcpip.IPv6TrafficClassOption
- if err := c.ep.GetSockOpt(&v); err != nil {
- c.t.Errorf("GetSockopt(%T) failed: %s", v, err)
+ v, err := c.ep.GetSockOptInt(tcpip.IPv6TrafficClassOption)
+ if err != nil {
+ c.t.Errorf("GetSockOptInt(IPv6TrafficClassOption) failed: %s", err)
}
// Test for expected default value.
if v != 0 {
- c.t.Errorf("got GetSockOpt(%T) = 0x%x, want = 0x%x", v, v, 0)
+ c.t.Errorf("got GetSockOptInt(IPv6TrafficClassOption) = 0x%x, want = 0x%x", v, 0)
}
- if err := c.ep.SetSockOpt(tcpip.IPv6TrafficClassOption(tClass)); err != nil {
- c.t.Errorf("SetSockOpt(%T, 0x%x) failed: %s", v, tcpip.IPv6TrafficClassOption(tClass), err)
+ if err := c.ep.SetSockOptInt(tcpip.IPv6TrafficClassOption, tClass); err != nil {
+ c.t.Errorf("SetSockOptInt(IPv6TrafficClassOption, 0x%x) failed: %s", tClass, err)
}
- if err := c.ep.GetSockOpt(&v); err != nil {
- c.t.Errorf("GetSockopt(%T) failed: %s", v, err)
+ v, err = c.ep.GetSockOptInt(tcpip.IPv6TrafficClassOption)
+ if err != nil {
+ c.t.Errorf("GetSockOptInt(IPv6TrafficClassOption) failed: %s", err)
}
- if want := tcpip.IPv6TrafficClassOption(tClass); v != want {
- c.t.Errorf("got GetSockOpt(%T) = 0x%x, want = 0x%x", v, v, want)
+ if v != tClass {
+ c.t.Errorf("got GetSockOptInt(IPv6TrafficClassOption) = 0x%x, want = 0x%x", v, tClass)
}
// The header getter for TClass is called TOS, so use that checker.
@@ -1430,7 +1432,7 @@ func TestReceiveTosTClass(t *testing.T) {
// Verify that setting and reading the option works.
v, err := c.ep.GetSockOptBool(option)
if err != nil {
- c.t.Errorf("GetSockoptBool(%s) failed: %s", name, err)
+ c.t.Errorf("GetSockOptBool(%s) failed: %s", name, err)
}
// Test for expected default value.
if v != false {
@@ -1444,7 +1446,7 @@ func TestReceiveTosTClass(t *testing.T) {
got, err := c.ep.GetSockOptBool(option)
if err != nil {
- c.t.Errorf("GetSockoptBool(%s) failed: %s", name, err)
+ c.t.Errorf("GetSockOptBool(%s) failed: %s", name, err)
}
if got != want {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 14:34:14 +0000