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-rw-r--r--pkg/sentry/socket/netstack/netstack.go66
-rw-r--r--pkg/sentry/socket/netstack/netstack_vfs2.go4
-rw-r--r--pkg/sentry/socket/unix/transport/unix.go18
-rw-r--r--pkg/tcpip/socketops.go60
-rw-r--r--pkg/tcpip/stack/transport_test.go10
-rw-r--r--pkg/tcpip/tcpip.go26
-rw-r--r--pkg/tcpip/transport/icmp/endpoint.go10
-rw-r--r--pkg/tcpip/transport/packet/endpoint.go10
-rw-r--r--pkg/tcpip/transport/raw/endpoint.go10
-rw-r--r--pkg/tcpip/transport/tcp/endpoint.go82
-rw-r--r--pkg/tcpip/transport/tcp/snd.go5
-rw-r--r--pkg/tcpip/transport/tcp/tcp_test.go19
-rw-r--r--pkg/tcpip/transport/udp/endpoint.go10
13 files changed, 111 insertions, 219 deletions
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go
index 1184acc7a..814e2387e 100644
--- a/pkg/sentry/socket/netstack/netstack.go
+++ b/pkg/sentry/socket/netstack/netstack.go
@@ -240,10 +240,6 @@ type commonEndpoint interface {
// transport.Endpoint.SetSockOpt.
SetSockOpt(tcpip.SettableSocketOption) *tcpip.Error
- // SetSockOptBool implements tcpip.Endpoint.SetSockOptBool and
- // transport.Endpoint.SetSockOptBool.
- SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error
-
// SetSockOptInt implements tcpip.Endpoint.SetSockOptInt and
// transport.Endpoint.SetSockOptInt.
SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error
@@ -252,10 +248,6 @@ type commonEndpoint interface {
// transport.Endpoint.GetSockOpt.
GetSockOpt(tcpip.GettableSocketOption) *tcpip.Error
- // GetSockOptBool implements tcpip.Endpoint.GetSockOptBool and
- // transport.Endpoint.GetSockOpt.
- GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error)
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt and
// transport.Endpoint.GetSockOpt.
GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error)
@@ -338,9 +330,7 @@ type socketOpsCommon struct {
// New creates a new endpoint socket.
func New(t *kernel.Task, family int, skType linux.SockType, protocol int, queue *waiter.Queue, endpoint tcpip.Endpoint) (*fs.File, *syserr.Error) {
if skType == linux.SOCK_STREAM {
- if err := endpoint.SetSockOptBool(tcpip.DelayOption, true); err != nil {
- return nil, syserr.TranslateNetstackError(err)
- }
+ endpoint.SocketOptions().SetDelayOption(true)
}
dirent := socket.NewDirent(t, netstackDevice)
@@ -1007,7 +997,7 @@ func GetSockOpt(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, family in
return getSockOptSocket(t, s, ep, family, skType, name, outLen)
case linux.SOL_TCP:
- return getSockOptTCP(t, ep, name, outLen)
+ return getSockOptTCP(t, s, ep, name, outLen)
case linux.SOL_IPV6:
return getSockOptIPv6(t, s, ep, name, outPtr, outLen)
@@ -1241,46 +1231,36 @@ func getSockOptSocket(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, fam
}
// getSockOptTCP implements GetSockOpt when level is SOL_TCP.
-func getSockOptTCP(t *kernel.Task, ep commonEndpoint, name, outLen int) (marshal.Marshallable, *syserr.Error) {
+func getSockOptTCP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name, outLen int) (marshal.Marshallable, *syserr.Error) {
+ if _, skType, skProto := s.Type(); !isTCPSocket(skType, skProto) {
+ log.Warningf("SOL_TCP options are only supported on TCP sockets: skType, skProto = %v, %d", skType, skProto)
+ return nil, syserr.ErrUnknownProtocolOption
+ }
+
switch name {
case linux.TCP_NODELAY:
if outLen < sizeOfInt32 {
return nil, syserr.ErrInvalidArgument
}
- v, err := ep.GetSockOptBool(tcpip.DelayOption)
- if err != nil {
- return nil, syserr.TranslateNetstackError(err)
- }
-
- vP := primitive.Int32(boolToInt32(!v))
- return &vP, nil
+ v := primitive.Int32(boolToInt32(!ep.SocketOptions().GetDelayOption()))
+ return &v, nil
case linux.TCP_CORK:
if outLen < sizeOfInt32 {
return nil, syserr.ErrInvalidArgument
}
- v, err := ep.GetSockOptBool(tcpip.CorkOption)
- if err != nil {
- return nil, syserr.TranslateNetstackError(err)
- }
-
- vP := primitive.Int32(boolToInt32(v))
- return &vP, nil
+ v := primitive.Int32(boolToInt32(ep.SocketOptions().GetCorkOption()))
+ return &v, nil
case linux.TCP_QUICKACK:
if outLen < sizeOfInt32 {
return nil, syserr.ErrInvalidArgument
}
- v, err := ep.GetSockOptBool(tcpip.QuickAckOption)
- if err != nil {
- return nil, syserr.TranslateNetstackError(err)
- }
-
- vP := primitive.Int32(boolToInt32(v))
- return &vP, nil
+ v := primitive.Int32(boolToInt32(ep.SocketOptions().GetQuickAck()))
+ return &v, nil
case linux.TCP_MAXSEG:
if outLen < sizeOfInt32 {
@@ -1804,7 +1784,7 @@ func SetSockOpt(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, level int
return setSockOptSocket(t, s, ep, name, optVal)
case linux.SOL_TCP:
- return setSockOptTCP(t, ep, name, optVal)
+ return setSockOptTCP(t, s, ep, name, optVal)
case linux.SOL_IPV6:
return setSockOptIPv6(t, s, ep, name, optVal)
@@ -1994,7 +1974,12 @@ func setSockOptSocket(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, nam
}
// setSockOptTCP implements SetSockOpt when level is SOL_TCP.
-func setSockOptTCP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *syserr.Error {
+func setSockOptTCP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name int, optVal []byte) *syserr.Error {
+ if _, skType, skProto := s.Type(); !isTCPSocket(skType, skProto) {
+ log.Warningf("SOL_TCP options are only supported on TCP sockets: skType, skProto = %v, %d", skType, skProto)
+ return syserr.ErrUnknownProtocolOption
+ }
+
switch name {
case linux.TCP_NODELAY:
if len(optVal) < sizeOfInt32 {
@@ -2002,7 +1987,8 @@ func setSockOptTCP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *
}
v := usermem.ByteOrder.Uint32(optVal)
- return syserr.TranslateNetstackError(ep.SetSockOptBool(tcpip.DelayOption, v == 0))
+ ep.SocketOptions().SetDelayOption(v == 0)
+ return nil
case linux.TCP_CORK:
if len(optVal) < sizeOfInt32 {
@@ -2010,7 +1996,8 @@ func setSockOptTCP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *
}
v := usermem.ByteOrder.Uint32(optVal)
- return syserr.TranslateNetstackError(ep.SetSockOptBool(tcpip.CorkOption, v != 0))
+ ep.SocketOptions().SetCorkOption(v != 0)
+ return nil
case linux.TCP_QUICKACK:
if len(optVal) < sizeOfInt32 {
@@ -2018,7 +2005,8 @@ func setSockOptTCP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) *
}
v := usermem.ByteOrder.Uint32(optVal)
- return syserr.TranslateNetstackError(ep.SetSockOptBool(tcpip.QuickAckOption, v != 0))
+ ep.SocketOptions().SetQuickAck(v != 0)
+ return nil
case linux.TCP_MAXSEG:
if len(optVal) < sizeOfInt32 {
diff --git a/pkg/sentry/socket/netstack/netstack_vfs2.go b/pkg/sentry/socket/netstack/netstack_vfs2.go
index b0d9e4d9e..97f66cb98 100644
--- a/pkg/sentry/socket/netstack/netstack_vfs2.go
+++ b/pkg/sentry/socket/netstack/netstack_vfs2.go
@@ -51,9 +51,7 @@ var _ = socket.SocketVFS2(&SocketVFS2{})
// NewVFS2 creates a new endpoint socket.
func NewVFS2(t *kernel.Task, family int, skType linux.SockType, protocol int, queue *waiter.Queue, endpoint tcpip.Endpoint) (*vfs.FileDescription, *syserr.Error) {
if skType == linux.SOCK_STREAM {
- if err := endpoint.SetSockOptBool(tcpip.DelayOption, true); err != nil {
- return nil, syserr.TranslateNetstackError(err)
- }
+ endpoint.SocketOptions().SetDelayOption(true)
}
mnt := t.Kernel().SocketMount()
diff --git a/pkg/sentry/socket/unix/transport/unix.go b/pkg/sentry/socket/unix/transport/unix.go
index 4abea90cc..0247e93fa 100644
--- a/pkg/sentry/socket/unix/transport/unix.go
+++ b/pkg/sentry/socket/unix/transport/unix.go
@@ -178,10 +178,6 @@ type Endpoint interface {
// SetSockOpt sets a socket option.
SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error
- // SetSockOptBool sets a socket option for simple cases when a value has
- // the int type.
- SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error
-
// SetSockOptInt sets a socket option for simple cases when a value has
// the int type.
SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error
@@ -189,10 +185,6 @@ type Endpoint interface {
// GetSockOpt gets a socket option.
GetSockOpt(opt tcpip.GettableSocketOption) *tcpip.Error
- // GetSockOptBool gets a socket option for simple cases when a return
- // value has the int type.
- GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error)
-
// GetSockOptInt gets a socket option for simple cases when a return
// value has the int type.
GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error)
@@ -857,11 +849,6 @@ func (e *baseEndpoint) SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error {
return nil
}
-func (e *baseEndpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- log.Warningf("Unsupported socket option: %d", opt)
- return nil
-}
-
func (e *baseEndpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
switch opt {
case tcpip.SendBufferSizeOption:
@@ -872,11 +859,6 @@ func (e *baseEndpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
return nil
}
-func (e *baseEndpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- log.Warningf("Unsupported socket option: %d", opt)
- return false, tcpip.ErrUnknownProtocolOption
-}
-
func (e *baseEndpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
case tcpip.ReceiveQueueSizeOption:
diff --git a/pkg/tcpip/socketops.go b/pkg/tcpip/socketops.go
index cced4d8fc..c53698a6a 100644
--- a/pkg/tcpip/socketops.go
+++ b/pkg/tcpip/socketops.go
@@ -30,6 +30,13 @@ type SocketOptionsHandler interface {
// OnKeepAliveSet is invoked when SO_KEEPALIVE is set for an endpoint.
OnKeepAliveSet(v bool)
+
+ // OnDelayOptionSet is invoked when TCP_NODELAY is set for an endpoint.
+ // Note that v will be the inverse of TCP_NODELAY option.
+ OnDelayOptionSet(v bool)
+
+ // OnCorkOptionSet is invoked when TCP_CORK is set for an endpoint.
+ OnCorkOptionSet(v bool)
}
// DefaultSocketOptionsHandler is an embeddable type that implements no-op
@@ -47,8 +54,14 @@ func (*DefaultSocketOptionsHandler) OnReusePortSet(bool) {}
// OnKeepAliveSet implements SocketOptionsHandler.OnKeepAliveSet.
func (*DefaultSocketOptionsHandler) OnKeepAliveSet(bool) {}
+// OnDelayOptionSet implements SocketOptionsHandler.OnDelayOptionSet.
+func (*DefaultSocketOptionsHandler) OnDelayOptionSet(bool) {}
+
+// OnCorkOptionSet implements SocketOptionsHandler.OnCorkOptionSet.
+func (*DefaultSocketOptionsHandler) OnCorkOptionSet(bool) {}
+
// SocketOptions contains all the variables which store values for SOL_SOCKET,
-// SOL_IP and SOL_IPV6 level options.
+// SOL_IP, SOL_IPV6 and SOL_TCP level options.
//
// +stateify savable
type SocketOptions struct {
@@ -104,6 +117,19 @@ type SocketOptions struct {
// v6OnlyEnabled is used to determine whether an IPv6 socket is to be
// restricted to sending and receiving IPv6 packets only.
v6OnlyEnabled uint32
+
+ // quickAckEnabled is used to represent the value of TCP_QUICKACK option.
+ // It currently does not have any effect on the TCP endpoint.
+ quickAckEnabled uint32
+
+ // delayOptionEnabled is used 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.
+ delayOptionEnabled uint32
+
+ // corkOptionEnabled is used to specify if data should be held until segments
+ // are full by the TCP transport protocol.
+ corkOptionEnabled uint32
}
// InitHandler initializes the handler. This must be called before using the
@@ -244,3 +270,35 @@ func (so *SocketOptions) GetV6Only() bool {
func (so *SocketOptions) SetV6Only(v bool) {
storeAtomicBool(&so.v6OnlyEnabled, v)
}
+
+// GetQuickAck gets value for TCP_QUICKACK option.
+func (so *SocketOptions) GetQuickAck() bool {
+ return atomic.LoadUint32(&so.quickAckEnabled) != 0
+}
+
+// SetQuickAck sets value for TCP_QUICKACK option.
+func (so *SocketOptions) SetQuickAck(v bool) {
+ storeAtomicBool(&so.quickAckEnabled, v)
+}
+
+// GetDelayOption gets inverted value for TCP_NODELAY option.
+func (so *SocketOptions) GetDelayOption() bool {
+ return atomic.LoadUint32(&so.delayOptionEnabled) != 0
+}
+
+// SetDelayOption sets inverted value for TCP_NODELAY option.
+func (so *SocketOptions) SetDelayOption(v bool) {
+ storeAtomicBool(&so.delayOptionEnabled, v)
+ so.handler.OnDelayOptionSet(v)
+}
+
+// GetCorkOption gets value for TCP_CORK option.
+func (so *SocketOptions) GetCorkOption() bool {
+ return atomic.LoadUint32(&so.corkOptionEnabled) != 0
+}
+
+// SetCorkOption sets value for TCP_CORK option.
+func (so *SocketOptions) SetCorkOption(v bool) {
+ storeAtomicBool(&so.corkOptionEnabled, v)
+ so.handler.OnCorkOptionSet(v)
+}
diff --git a/pkg/tcpip/stack/transport_test.go b/pkg/tcpip/stack/transport_test.go
index 081c21fa9..d9769e47d 100644
--- a/pkg/tcpip/stack/transport_test.go
+++ b/pkg/tcpip/stack/transport_test.go
@@ -118,21 +118,11 @@ func (*fakeTransportEndpoint) SetSockOpt(tcpip.SettableSocketOption) *tcpip.Erro
return tcpip.ErrInvalidEndpointState
}
-// SetSockOptBool sets a socket option. Currently not supported.
-func (*fakeTransportEndpoint) SetSockOptBool(tcpip.SockOptBool, bool) *tcpip.Error {
- return tcpip.ErrInvalidEndpointState
-}
-
// SetSockOptInt sets a socket option. Currently not supported.
func (*fakeTransportEndpoint) SetSockOptInt(tcpip.SockOptInt, int) *tcpip.Error {
return tcpip.ErrInvalidEndpointState
}
-// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
-func (*fakeTransportEndpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrUnknownProtocolOption
-}
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (*fakeTransportEndpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
return -1, tcpip.ErrUnknownProtocolOption
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go
index 2eb6e76af..60ef37e9e 100644
--- a/pkg/tcpip/tcpip.go
+++ b/pkg/tcpip/tcpip.go
@@ -603,10 +603,6 @@ type Endpoint interface {
// SetSockOpt sets a socket option.
SetSockOpt(opt SettableSocketOption) *Error
- // SetSockOptBool sets a socket option, for simple cases where a value
- // has the bool type.
- SetSockOptBool(opt SockOptBool, v bool) *Error
-
// SetSockOptInt sets a socket option, for simple cases where a value
// has the int type.
SetSockOptInt(opt SockOptInt, v int) *Error
@@ -614,10 +610,6 @@ type Endpoint interface {
// GetSockOpt gets a socket option.
GetSockOpt(opt GettableSocketOption) *Error
- // GetSockOptBool gets a socket option for simple cases where a return
- // value has the bool type.
- GetSockOptBool(SockOptBool) (bool, *Error)
-
// GetSockOptInt gets a socket option for simple cases where a return
// value has the int type.
GetSockOptInt(SockOptInt) (int, *Error)
@@ -704,24 +696,6 @@ type WriteOptions struct {
Atomic bool
}
-// SockOptBool represents socket options which values have the bool type.
-type SockOptBool int
-
-const (
- // CorkOption is used by SetSockOptBool/GetSockOptBool to specify if
- // data should be held until segments are full by the TCP transport
- // protocol.
- CorkOption SockOptBool = iota
-
- // DelayOption is used by SetSockOptBool/GetSockOptBool 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
-
- // QuickAckOption is stubbed out in SetSockOptBool/GetSockOptBool.
- QuickAckOption
-)
-
// SockOptInt represents socket options which values have the int type.
type SockOptInt int
diff --git a/pkg/tcpip/transport/icmp/endpoint.go b/pkg/tcpip/transport/icmp/endpoint.go
index 5eacd8d24..c9054cc35 100644
--- a/pkg/tcpip/transport/icmp/endpoint.go
+++ b/pkg/tcpip/transport/icmp/endpoint.go
@@ -368,11 +368,6 @@ func (e *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error {
return nil
}
-// SetSockOptBool sets a socket option. Currently not supported.
-func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- return nil
-}
-
// SetSockOptInt sets a socket option. Currently not supported.
func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
switch opt {
@@ -385,11 +380,6 @@ func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
return nil
}
-// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
-func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrUnknownProtocolOption
-}
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
diff --git a/pkg/tcpip/transport/packet/endpoint.go b/pkg/tcpip/transport/packet/endpoint.go
index da402bad9..3666bac0f 100644
--- a/pkg/tcpip/transport/packet/endpoint.go
+++ b/pkg/tcpip/transport/packet/endpoint.go
@@ -321,11 +321,6 @@ func (ep *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error {
}
}
-// SetSockOptBool implements tcpip.Endpoint.SetSockOptBool.
-func (ep *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- return tcpip.ErrUnknownProtocolOption
-}
-
// SetSockOptInt implements tcpip.Endpoint.SetSockOptInt.
func (ep *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
switch opt {
@@ -393,11 +388,6 @@ func (ep *endpoint) GetSockOpt(opt tcpip.GettableSocketOption) *tcpip.Error {
}
}
-// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
-func (*endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrNotSupported
-}
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (ep *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
diff --git a/pkg/tcpip/transport/raw/endpoint.go b/pkg/tcpip/transport/raw/endpoint.go
index 0478900c3..0840a4b3d 100644
--- a/pkg/tcpip/transport/raw/endpoint.go
+++ b/pkg/tcpip/transport/raw/endpoint.go
@@ -535,11 +535,6 @@ func (e *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error {
}
}
-// SetSockOptBool implements tcpip.Endpoint.SetSockOptBool.
-func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- return tcpip.ErrUnknownProtocolOption
-}
-
// SetSockOptInt implements tcpip.Endpoint.SetSockOptInt.
func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
switch opt {
@@ -598,11 +593,6 @@ func (e *endpoint) GetSockOpt(opt tcpip.GettableSocketOption) *tcpip.Error {
}
}
-// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
-func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrUnknownProtocolOption
-}
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go
index fb64851ae..d321869c4 100644
--- a/pkg/tcpip/transport/tcp/endpoint.go
+++ b/pkg/tcpip/transport/tcp/endpoint.go
@@ -497,24 +497,9 @@ type endpoint struct {
// delay is a boolean (0 is false) and must be accessed atomically.
delay uint32
- // cork holds back segments until full.
- //
- // cork is a boolean (0 is false) and must be accessed atomically.
- cork uint32
-
// scoreboard holds TCP SACK Scoreboard information for this endpoint.
scoreboard *SACKScoreboard
- // The options below aren't implemented, but we remember the user
- // settings because applications expect to be able to set/query these
- // options.
-
- // slowAck holds the negated state of quick ack. It is stubbed out and
- // does nothing.
- //
- // slowAck is a boolean (0 is false) and must be accessed atomically.
- slowAck uint32
-
// segmentQueue is used to hand received segments to the protocol
// goroutine. Segments are queued as long as the queue is not full,
// and dropped when it is.
@@ -874,6 +859,7 @@ func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, waiterQue
}
e.ops.InitHandler(e)
e.ops.SetMulticastLoop(true)
+ e.ops.SetQuickAck(true)
var ss tcpip.TCPSendBufferSizeRangeOption
if err := s.TransportProtocolOption(ProtocolNumber, &ss); err == nil {
@@ -897,7 +883,7 @@ func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, waiterQue
var de tcpip.TCPDelayEnabled
if err := s.TransportProtocolOption(ProtocolNumber, &de); err == nil && de {
- e.SetSockOptBool(tcpip.DelayOption, true)
+ e.ops.SetDelayOption(true)
}
var tcpLT tcpip.TCPLingerTimeoutOption
@@ -1640,41 +1626,20 @@ func (e *endpoint) OnKeepAliveSet(v bool) {
e.notifyProtocolGoroutine(notifyKeepaliveChanged)
}
-// SetSockOptBool sets a socket option.
-func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- switch opt {
-
- 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.QuickAckOption:
- o := uint32(1)
- if v {
- o = 0
- }
- atomic.StoreUint32(&e.slowAck, o)
+// OnDelayOptionSet implements tcpip.SocketOptionsHandler.OnDelayOptionSet.
+func (e *endpoint) OnDelayOptionSet(v bool) {
+ if !v {
+ // Handle delayed data.
+ e.sndWaker.Assert()
}
+}
- return nil
+// OnCorkOptionSet implements tcpip.SocketOptionsHandler.OnCorkOptionSet.
+func (e *endpoint) OnCorkOptionSet(v bool) {
+ if !v {
+ // Handle the corked data.
+ e.sndWaker.Assert()
+ }
}
// SetSockOptInt sets a socket option.
@@ -1956,25 +1921,6 @@ func (e *endpoint) readyReceiveSize() (int, *tcpip.Error) {
return e.rcvBufUsed, nil
}
-// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
-func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- switch opt {
-
- case tcpip.CorkOption:
- return atomic.LoadUint32(&e.cork) != 0, nil
-
- case tcpip.DelayOption:
- return atomic.LoadUint32(&e.delay) != 0, nil
-
- case tcpip.QuickAckOption:
- v := atomic.LoadUint32(&e.slowAck) == 0
- return v, nil
-
- default:
- return false, tcpip.ErrUnknownProtocolOption
- }
-}
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
diff --git a/pkg/tcpip/transport/tcp/snd.go b/pkg/tcpip/transport/tcp/snd.go
index 5ed9f7ace..baec762e1 100644
--- a/pkg/tcpip/transport/tcp/snd.go
+++ b/pkg/tcpip/transport/tcp/snd.go
@@ -18,7 +18,6 @@ import (
"fmt"
"math"
"sort"
- "sync/atomic"
"time"
"gvisor.dev/gvisor/pkg/sleep"
@@ -813,7 +812,7 @@ func (s *sender) maybeSendSegment(seg *segment, limit int, end seqnum.Value) (se
}
if !nextTooBig && seg.data.Size() < available {
// Segment is not full.
- if s.outstanding > 0 && atomic.LoadUint32(&s.ep.delay) != 0 {
+ if s.outstanding > 0 && s.ep.ops.GetDelayOption() {
// Nagle's algorithm. From Wikipedia:
// Nagle's algorithm works by
// combining a number of small
@@ -832,7 +831,7 @@ func (s *sender) maybeSendSegment(seg *segment, limit int, end seqnum.Value) (se
// send space and MSS.
// TODO(gvisor.dev/issue/2833): Drain the held segments after a
// timeout.
- if seg.data.Size() < s.maxPayloadSize && atomic.LoadUint32(&s.ep.cork) != 0 {
+ if seg.data.Size() < s.maxPayloadSize && s.ep.ops.GetCorkOption() {
return false
}
}
diff --git a/pkg/tcpip/transport/tcp/tcp_test.go b/pkg/tcpip/transport/tcp/tcp_test.go
index dfe2b4c6c..aed41b36d 100644
--- a/pkg/tcpip/transport/tcp/tcp_test.go
+++ b/pkg/tcpip/transport/tcp/tcp_test.go
@@ -2529,10 +2529,10 @@ func TestSegmentMerging(t *testing.T) {
{
"cork",
func(ep tcpip.Endpoint) {
- ep.SetSockOptBool(tcpip.CorkOption, true)
+ ep.SocketOptions().SetCorkOption(true)
},
func(ep tcpip.Endpoint) {
- ep.SetSockOptBool(tcpip.CorkOption, false)
+ ep.SocketOptions().SetCorkOption(false)
},
},
}
@@ -2624,7 +2624,7 @@ func TestDelay(t *testing.T) {
c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
- c.EP.SetSockOptBool(tcpip.DelayOption, true)
+ c.EP.SocketOptions().SetDelayOption(true)
var allData []byte
for i, data := range [][]byte{{0}, {1, 2, 3, 4}, {5, 6, 7}, {8, 9}, {10}, {11}} {
@@ -2672,7 +2672,7 @@ func TestUndelay(t *testing.T) {
c.CreateConnected(789, 30000, -1 /* epRcvBuf */)
- c.EP.SetSockOptBool(tcpip.DelayOption, true)
+ c.EP.SocketOptions().SetDelayOption(true)
allData := [][]byte{{0}, {1, 2, 3}}
for i, data := range allData {
@@ -2705,7 +2705,7 @@ 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.SetSockOptBool(tcpip.DelayOption, false)
+ c.EP.SocketOptions().SetDelayOption(false)
// Check that data is received.
second := c.GetPacket()
@@ -2742,8 +2742,8 @@ func TestMSSNotDelayed(t *testing.T) {
fn func(tcpip.Endpoint)
}{
{"no-op", func(tcpip.Endpoint) {}},
- {"delay", func(ep tcpip.Endpoint) { ep.SetSockOptBool(tcpip.DelayOption, true) }},
- {"cork", func(ep tcpip.Endpoint) { ep.SetSockOptBool(tcpip.CorkOption, true) }},
+ {"delay", func(ep tcpip.Endpoint) { ep.SocketOptions().SetDelayOption(true) }},
+ {"cork", func(ep tcpip.Endpoint) { ep.SocketOptions().SetCorkOption(true) }},
}
for _, test := range tests {
@@ -6374,10 +6374,7 @@ func checkDelayOption(t *testing.T, c *context.Context, wantDelayEnabled tcpip.T
if err != nil {
t.Fatalf("NewEndPoint(tcp, ipv4, new(waiter.Queue)) failed: %s", err)
}
- gotDelayOption, err := ep.GetSockOptBool(tcpip.DelayOption)
- if err != nil {
- t.Fatalf("ep.GetSockOptBool(tcpip.DelayOption) failed: %s", err)
- }
+ gotDelayOption := ep.SocketOptions().GetDelayOption()
if gotDelayOption != wantDelayOption {
t.Errorf("ep.GetSockOptBool(tcpip.DelayOption) got: %t, want: %t", gotDelayOption, wantDelayOption)
}
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go
index a9c74148b..776c1af43 100644
--- a/pkg/tcpip/transport/udp/endpoint.go
+++ b/pkg/tcpip/transport/udp/endpoint.go
@@ -575,11 +575,6 @@ func (e *endpoint) OnReusePortSet(v bool) {
e.mu.Unlock()
}
-// SetSockOptBool implements tcpip.Endpoint.SetSockOptBool.
-func (e *endpoint) SetSockOptBool(opt tcpip.SockOptBool, v bool) *tcpip.Error {
- return nil
-}
-
// SetSockOptInt implements tcpip.Endpoint.SetSockOptInt.
func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
switch opt {
@@ -789,11 +784,6 @@ func (e *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error {
return nil
}
-// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
-func (e *endpoint) GetSockOptBool(opt tcpip.SockOptBool) (bool, *tcpip.Error) {
- return false, tcpip.ErrUnknownProtocolOption
-}
-
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt.
func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
switch opt {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 16:35:07 +0000