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-rw-r--r--pkg/sentry/socket/netstack/netstack.go5
-rw-r--r--pkg/sentry/socket/unix/transport/unix.go10
-rw-r--r--pkg/tcpip/adapters/gonet/gonet.go2
-rw-r--r--pkg/tcpip/adapters/gonet/gonet_test.go2
-rw-r--r--pkg/tcpip/sample/tun_tcp_connect/main.go2
-rw-r--r--pkg/tcpip/stack/transport_test.go26
-rw-r--r--pkg/tcpip/tcpip.go7
-rw-r--r--pkg/tcpip/transport/icmp/endpoint.go15
-rw-r--r--pkg/tcpip/transport/packet/endpoint.go8
-rw-r--r--pkg/tcpip/transport/raw/endpoint.go14
-rw-r--r--pkg/tcpip/transport/tcp/connect.go4
-rw-r--r--pkg/tcpip/transport/tcp/dual_stack_test.go6
-rw-r--r--pkg/tcpip/transport/tcp/endpoint.go5
-rw-r--r--pkg/tcpip/transport/tcp/tcp_test.go10
-rw-r--r--pkg/tcpip/transport/tcp/testing/context/context.go5
-rw-r--r--pkg/tcpip/transport/udp/endpoint.go8
16 files changed, 60 insertions, 69 deletions
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go
index 2af2d8252..8da77cc68 100644
--- a/pkg/sentry/socket/netstack/netstack.go
+++ b/pkg/sentry/socket/netstack/netstack.go
@@ -257,6 +257,9 @@ type commonEndpoint interface {
// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt and
// transport.Endpoint.GetSockOpt.
GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error)
+
+ // LastError implements tcpip.Endpoint.LastError.
+ LastError() *tcpip.Error
}
// LINT.IfChange
@@ -1030,7 +1033,7 @@ func getSockOptSocket(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, fam
}
// Get the last error and convert it.
- err := ep.GetSockOpt(tcpip.ErrorOption{})
+ err := ep.LastError()
if err == nil {
optP := primitive.Int32(0)
return &optP, nil
diff --git a/pkg/sentry/socket/unix/transport/unix.go b/pkg/sentry/socket/unix/transport/unix.go
index ab7bab5cd..4bf06d4dc 100644
--- a/pkg/sentry/socket/unix/transport/unix.go
+++ b/pkg/sentry/socket/unix/transport/unix.go
@@ -199,6 +199,9 @@ type Endpoint interface {
// State returns the current state of the socket, as represented by Linux in
// procfs.
State() uint32
+
+ // LastError implements tcpip.Endpoint.LastError.
+ LastError() *tcpip.Error
}
// A Credentialer is a socket or endpoint that supports the SO_PASSCRED socket
@@ -942,7 +945,7 @@ func (e *baseEndpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (e *baseEndpoint) GetSockOpt(opt interface{}) *tcpip.Error {
switch opt.(type) {
- case tcpip.ErrorOption, *tcpip.LingerOption:
+ case *tcpip.LingerOption:
return nil
default:
@@ -951,6 +954,11 @@ func (e *baseEndpoint) GetSockOpt(opt interface{}) *tcpip.Error {
}
}
+// LastError implements Endpoint.LastError.
+func (*baseEndpoint) LastError() *tcpip.Error {
+ return nil
+}
+
// Shutdown closes the read and/or write end of the endpoint connection to its
// peer.
func (e *baseEndpoint) Shutdown(flags tcpip.ShutdownFlags) *syserr.Error {
diff --git a/pkg/tcpip/adapters/gonet/gonet.go b/pkg/tcpip/adapters/gonet/gonet.go
index d82ed5205..68a954a10 100644
--- a/pkg/tcpip/adapters/gonet/gonet.go
+++ b/pkg/tcpip/adapters/gonet/gonet.go
@@ -541,7 +541,7 @@ func DialContextTCP(ctx context.Context, s *stack.Stack, addr tcpip.FullAddress,
case <-notifyCh:
}
- err = ep.GetSockOpt(tcpip.ErrorOption{})
+ err = ep.LastError()
}
if err != nil {
ep.Close()
diff --git a/pkg/tcpip/adapters/gonet/gonet_test.go b/pkg/tcpip/adapters/gonet/gonet_test.go
index 3c552988a..c975ad9cf 100644
--- a/pkg/tcpip/adapters/gonet/gonet_test.go
+++ b/pkg/tcpip/adapters/gonet/gonet_test.go
@@ -104,7 +104,7 @@ func connect(s *stack.Stack, addr tcpip.FullAddress) (*testConnection, *tcpip.Er
err = ep.Connect(addr)
if err == tcpip.ErrConnectStarted {
<-ch
- err = ep.GetSockOpt(tcpip.ErrorOption{})
+ err = ep.LastError()
}
if err != nil {
return nil, err
diff --git a/pkg/tcpip/sample/tun_tcp_connect/main.go b/pkg/tcpip/sample/tun_tcp_connect/main.go
index 0ab089208..91fc26722 100644
--- a/pkg/tcpip/sample/tun_tcp_connect/main.go
+++ b/pkg/tcpip/sample/tun_tcp_connect/main.go
@@ -182,7 +182,7 @@ func main() {
if terr == tcpip.ErrConnectStarted {
fmt.Println("Connect is pending...")
<-notifyCh
- terr = ep.GetSockOpt(tcpip.ErrorOption{})
+ terr = ep.LastError()
}
wq.EventUnregister(&waitEntry)
diff --git a/pkg/tcpip/stack/transport_test.go b/pkg/tcpip/stack/transport_test.go
index 6c6e44468..7869bb98b 100644
--- a/pkg/tcpip/stack/transport_test.go
+++ b/pkg/tcpip/stack/transport_test.go
@@ -53,11 +53,11 @@ func (f *fakeTransportEndpoint) Info() tcpip.EndpointInfo {
return &f.TransportEndpointInfo
}
-func (f *fakeTransportEndpoint) Stats() tcpip.EndpointStats {
+func (*fakeTransportEndpoint) Stats() tcpip.EndpointStats {
return nil
}
-func (f *fakeTransportEndpoint) SetOwner(owner tcpip.PacketOwner) {}
+func (*fakeTransportEndpoint) SetOwner(owner tcpip.PacketOwner) {}
func newFakeTransportEndpoint(s *stack.Stack, proto *fakeTransportProtocol, netProto tcpip.NetworkProtocolNumber, uniqueID uint64) tcpip.Endpoint {
return &fakeTransportEndpoint{stack: s, TransportEndpointInfo: stack.TransportEndpointInfo{NetProto: netProto}, proto: proto, uniqueID: uniqueID}
@@ -100,7 +100,7 @@ func (f *fakeTransportEndpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions
return int64(len(v)), nil, nil
}
-func (f *fakeTransportEndpoint) Peek([][]byte) (int64, tcpip.ControlMessages, *tcpip.Error) {
+func (*fakeTransportEndpoint) Peek([][]byte) (int64, tcpip.ControlMessages, *tcpip.Error) {
return 0, tcpip.ControlMessages{}, nil
}
@@ -131,10 +131,6 @@ func (*fakeTransportEndpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.E
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (*fakeTransportEndpoint) GetSockOpt(opt interface{}) *tcpip.Error {
- switch opt.(type) {
- case tcpip.ErrorOption:
- return nil
- }
return tcpip.ErrInvalidEndpointState
}
@@ -169,7 +165,7 @@ func (f *fakeTransportEndpoint) UniqueID() uint64 {
return f.uniqueID
}
-func (f *fakeTransportEndpoint) ConnectEndpoint(e tcpip.Endpoint) *tcpip.Error {
+func (*fakeTransportEndpoint) ConnectEndpoint(e tcpip.Endpoint) *tcpip.Error {
return nil
}
@@ -239,19 +235,19 @@ func (f *fakeTransportEndpoint) HandleControlPacket(stack.TransportEndpointID, s
f.proto.controlCount++
}
-func (f *fakeTransportEndpoint) State() uint32 {
+func (*fakeTransportEndpoint) State() uint32 {
return 0
}
-func (f *fakeTransportEndpoint) ModerateRecvBuf(copied int) {}
+func (*fakeTransportEndpoint) ModerateRecvBuf(copied int) {}
-func (f *fakeTransportEndpoint) IPTables() (stack.IPTables, error) {
- return stack.IPTables{}, nil
-}
+func (*fakeTransportEndpoint) Resume(*stack.Stack) {}
-func (f *fakeTransportEndpoint) Resume(*stack.Stack) {}
+func (*fakeTransportEndpoint) Wait() {}
-func (f *fakeTransportEndpoint) Wait() {}
+func (*fakeTransportEndpoint) LastError() *tcpip.Error {
+ return nil
+}
type fakeTransportGoodOption bool
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go
index 609b8af33..cae943608 100644
--- a/pkg/tcpip/tcpip.go
+++ b/pkg/tcpip/tcpip.go
@@ -620,6 +620,9 @@ type Endpoint interface {
// SetOwner sets the task owner to the endpoint owner.
SetOwner(owner PacketOwner)
+
+ // LastError clears and returns the last error reported by the endpoint.
+ LastError() *Error
}
// LinkPacketInfo holds Link layer information for a received packet.
@@ -839,10 +842,6 @@ const (
PMTUDiscoveryProbe
)
-// ErrorOption is used in GetSockOpt to specify that the last error reported by
-// the endpoint should be cleared and returned.
-type ErrorOption struct{}
-
// BindToDeviceOption is used by SetSockOpt/GetSockOpt to specify that sockets
// should bind only on a specific NIC.
type BindToDeviceOption NICID
diff --git a/pkg/tcpip/transport/icmp/endpoint.go b/pkg/tcpip/transport/icmp/endpoint.go
index bd6f49eb8..c545c8367 100644
--- a/pkg/tcpip/transport/icmp/endpoint.go
+++ b/pkg/tcpip/transport/icmp/endpoint.go
@@ -415,14 +415,8 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
}
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
-func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
- switch opt.(type) {
- case tcpip.ErrorOption:
- return nil
-
- default:
- return tcpip.ErrUnknownProtocolOption
- }
+func (*endpoint) GetSockOpt(interface{}) *tcpip.Error {
+ return tcpip.ErrUnknownProtocolOption
}
func send4(r *stack.Route, ident uint16, data buffer.View, ttl uint8, owner tcpip.PacketOwner) *tcpip.Error {
@@ -836,3 +830,8 @@ func (e *endpoint) Stats() tcpip.EndpointStats {
// Wait implements stack.TransportEndpoint.Wait.
func (*endpoint) Wait() {}
+
+// LastError implements tcpip.Endpoint.LastError.
+func (*endpoint) LastError() *tcpip.Error {
+ return nil
+}
diff --git a/pkg/tcpip/transport/packet/endpoint.go b/pkg/tcpip/transport/packet/endpoint.go
index 1b03ad6bb..95dc8ed57 100644
--- a/pkg/tcpip/transport/packet/endpoint.go
+++ b/pkg/tcpip/transport/packet/endpoint.go
@@ -356,7 +356,7 @@ func (ep *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) *tcpip.Error {
}
}
-func (ep *endpoint) takeLastError() *tcpip.Error {
+func (ep *endpoint) LastError() *tcpip.Error {
ep.lastErrorMu.Lock()
defer ep.lastErrorMu.Unlock()
@@ -366,11 +366,7 @@ func (ep *endpoint) takeLastError() *tcpip.Error {
}
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
-func (ep *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
- switch opt.(type) {
- case tcpip.ErrorOption:
- return ep.takeLastError()
- }
+func (*endpoint) GetSockOpt(interface{}) *tcpip.Error {
return tcpip.ErrNotSupported
}
diff --git a/pkg/tcpip/transport/raw/endpoint.go b/pkg/tcpip/transport/raw/endpoint.go
index edc2b5b61..2087bcfa8 100644
--- a/pkg/tcpip/transport/raw/endpoint.go
+++ b/pkg/tcpip/transport/raw/endpoint.go
@@ -577,14 +577,8 @@ 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 opt.(type) {
- case tcpip.ErrorOption:
- return nil
-
- default:
- return tcpip.ErrUnknownProtocolOption
- }
+func (*endpoint) GetSockOpt(interface{}) *tcpip.Error {
+ return tcpip.ErrUnknownProtocolOption
}
// GetSockOptBool implements tcpip.Endpoint.GetSockOptBool.
@@ -739,3 +733,7 @@ func (e *endpoint) Stats() tcpip.EndpointStats {
// Wait implements stack.TransportEndpoint.Wait.
func (*endpoint) Wait() {}
+
+func (*endpoint) LastError() *tcpip.Error {
+ return nil
+}
diff --git a/pkg/tcpip/transport/tcp/connect.go b/pkg/tcpip/transport/tcp/connect.go
index 290172ac9..72df5c2a1 100644
--- a/pkg/tcpip/transport/tcp/connect.go
+++ b/pkg/tcpip/transport/tcp/connect.go
@@ -491,7 +491,7 @@ func (h *handshake) resolveRoute() *tcpip.Error {
h.ep.mu.Lock()
}
if n&notifyError != 0 {
- return h.ep.takeLastError()
+ return h.ep.LastError()
}
}
@@ -620,7 +620,7 @@ func (h *handshake) execute() *tcpip.Error {
h.ep.mu.Lock()
}
if n&notifyError != 0 {
- return h.ep.takeLastError()
+ return h.ep.LastError()
}
case wakerForNewSegment:
diff --git a/pkg/tcpip/transport/tcp/dual_stack_test.go b/pkg/tcpip/transport/tcp/dual_stack_test.go
index 804e95aea..6074cc24e 100644
--- a/pkg/tcpip/transport/tcp/dual_stack_test.go
+++ b/pkg/tcpip/transport/tcp/dual_stack_test.go
@@ -86,8 +86,7 @@ func testV4Connect(t *testing.T, c *context.Context, checkers ...checker.Network
// Wait for connection to be established.
select {
case <-ch:
- err = c.EP.GetSockOpt(tcpip.ErrorOption{})
- if err != nil {
+ if err := c.EP.LastError(); err != nil {
t.Fatalf("Unexpected error when connecting: %v", err)
}
case <-time.After(1 * time.Second):
@@ -194,8 +193,7 @@ func testV6Connect(t *testing.T, c *context.Context, checkers ...checker.Network
// Wait for connection to be established.
select {
case <-ch:
- err = c.EP.GetSockOpt(tcpip.ErrorOption{})
- if err != nil {
+ if err := c.EP.LastError(); err != nil {
t.Fatalf("Unexpected error when connecting: %v", err)
}
case <-time.After(1 * time.Second):
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go
index ff9b8804d..8a5e993b5 100644
--- a/pkg/tcpip/transport/tcp/endpoint.go
+++ b/pkg/tcpip/transport/tcp/endpoint.go
@@ -1234,7 +1234,7 @@ func (e *endpoint) SetOwner(owner tcpip.PacketOwner) {
e.owner = owner
}
-func (e *endpoint) takeLastError() *tcpip.Error {
+func (e *endpoint) LastError() *tcpip.Error {
e.lastErrorMu.Lock()
defer e.lastErrorMu.Unlock()
err := e.lastError
@@ -1995,9 +1995,6 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
switch o := opt.(type) {
- case tcpip.ErrorOption:
- return e.takeLastError()
-
case *tcpip.BindToDeviceOption:
e.LockUser()
*o = tcpip.BindToDeviceOption(e.bindToDevice)
diff --git a/pkg/tcpip/transport/tcp/tcp_test.go b/pkg/tcpip/transport/tcp/tcp_test.go
index 9650bb06c..3d3034d50 100644
--- a/pkg/tcpip/transport/tcp/tcp_test.go
+++ b/pkg/tcpip/transport/tcp/tcp_test.go
@@ -74,8 +74,8 @@ func TestGiveUpConnect(t *testing.T) {
// Wait for ep to become writable.
<-notifyCh
- if err := ep.GetSockOpt(tcpip.ErrorOption{}); err != tcpip.ErrAborted {
- t.Fatalf("got ep.GetSockOpt(tcpip.ErrorOption{}) = %s, want = %s", err, tcpip.ErrAborted)
+ if err := ep.LastError(); err != tcpip.ErrAborted {
+ t.Fatalf("got ep.LastError() = %s, want = %s", err, tcpip.ErrAborted)
}
// Call Connect again to retreive the handshake failure status
@@ -3023,8 +3023,8 @@ func TestSynOptionsOnActiveConnect(t *testing.T) {
// Wait for connection to be established.
select {
case <-ch:
- if err := c.EP.GetSockOpt(tcpip.ErrorOption{}); err != nil {
- t.Fatalf("GetSockOpt failed: %s", err)
+ if err := c.EP.LastError(); err != nil {
+ t.Fatalf("Connect failed: %s", err)
}
case <-time.After(1 * time.Second):
t.Fatalf("Timed out waiting for connection")
@@ -4411,7 +4411,7 @@ func TestSelfConnect(t *testing.T) {
}
<-notifyCh
- if err := ep.GetSockOpt(tcpip.ErrorOption{}); err != nil {
+ if err := ep.LastError(); err != nil {
t.Fatalf("Connect failed: %s", err)
}
diff --git a/pkg/tcpip/transport/tcp/testing/context/context.go b/pkg/tcpip/transport/tcp/testing/context/context.go
index b6031354e..1f5340cd0 100644
--- a/pkg/tcpip/transport/tcp/testing/context/context.go
+++ b/pkg/tcpip/transport/tcp/testing/context/context.go
@@ -638,7 +638,7 @@ func (c *Context) Connect(iss seqnum.Value, rcvWnd seqnum.Size, options []byte)
// Wait for connection to be established.
select {
case <-notifyCh:
- if err := c.EP.GetSockOpt(tcpip.ErrorOption{}); err != nil {
+ if err := c.EP.LastError(); err != nil {
c.t.Fatalf("Unexpected error when connecting: %v", err)
}
case <-time.After(1 * time.Second):
@@ -882,8 +882,7 @@ func (c *Context) CreateConnectedWithOptions(wantOptions header.TCPSynOptions) *
// Wait for connection to be established.
select {
case <-notifyCh:
- err = c.EP.GetSockOpt(tcpip.ErrorOption{})
- if err != nil {
+ if err := c.EP.LastError(); err != nil {
c.t.Fatalf("Unexpected error when connecting: %v", err)
}
case <-time.After(1 * time.Second):
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go
index 0a9d3c6cf..1d5ebe3f2 100644
--- a/pkg/tcpip/transport/udp/endpoint.go
+++ b/pkg/tcpip/transport/udp/endpoint.go
@@ -209,7 +209,7 @@ func (e *endpoint) UniqueID() uint64 {
return e.uniqueID
}
-func (e *endpoint) takeLastError() *tcpip.Error {
+func (e *endpoint) LastError() *tcpip.Error {
e.lastErrorMu.Lock()
defer e.lastErrorMu.Unlock()
@@ -268,7 +268,7 @@ func (e *endpoint) ModerateRecvBuf(copied int) {}
// Read reads data from the endpoint. This method does not block if
// there is no data pending.
func (e *endpoint) Read(addr *tcpip.FullAddress) (buffer.View, tcpip.ControlMessages, *tcpip.Error) {
- if err := e.takeLastError(); err != nil {
+ if err := e.LastError(); err != nil {
return buffer.View{}, tcpip.ControlMessages{}, err
}
@@ -411,7 +411,7 @@ func (e *endpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-c
}
func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-chan struct{}, *tcpip.Error) {
- if err := e.takeLastError(); err != nil {
+ if err := e.LastError(); err != nil {
return 0, nil, err
}
@@ -962,8 +962,6 @@ func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
// GetSockOpt implements tcpip.Endpoint.GetSockOpt.
func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
switch o := opt.(type) {
- case tcpip.ErrorOption:
- return e.takeLastError()
case *tcpip.MulticastInterfaceOption:
e.mu.Lock()
*o = tcpip.MulticastInterfaceOption{
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 20:48:06 +0000