Merge release-20190806.1-256-gbf870c1 (automated)

2 files changed, 50 insertions, 0 deletions

diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go
index ff574a055..7d73389cc 100644
--- a/pkg/tcpip/stack/stack.go
+++ b/pkg/tcpip/stack/stack.go
@@ -424,6 +424,34 @@ type Options struct {
 	UnassociatedFactory UnassociatedEndpointFactory
 }
 
+// TransportEndpointInfo holds useful information about a transport endpoint
+// which can be queried by monitoring tools.
+//
+// +stateify savable
+type TransportEndpointInfo struct {
+	// The following fields are initialized at creation time and are
+	// immutable.
+
+	NetProto   tcpip.NetworkProtocolNumber
+	TransProto tcpip.TransportProtocolNumber
+
+	// The following fields are protected by endpoint mu.
+
+	ID TransportEndpointID
+	// BindNICID and bindAddr are set via calls to Bind(). They are used to
+	// reject attempts to send data or connect via a different NIC or
+	// address
+	BindNICID tcpip.NICID
+	BindAddr  tcpip.Address
+	// RegisterNICID is the default NICID registered as a side-effect of
+	// connect or datagram write.
+	RegisterNICID tcpip.NICID
+}
+
+// IsEndpointInfo is an empty method to implement the tcpip.EndpointInfo
+// marker interface.
+func (*TransportEndpointInfo) IsEndpointInfo() {}
+
 // New allocates a new networking stack with only the requested networking and
 // transport protocols configured with default options.
 //
diff --git a/pkg/tcpip/stack/stack_state_autogen.go b/pkg/tcpip/stack/stack_state_autogen.go
index 5cc49d648..2459c3d3a 100755
--- a/pkg/tcpip/stack/stack_state_autogen.go
+++ b/pkg/tcpip/stack/stack_state_autogen.go
@@ -78,10 +78,32 @@ func (x *GSO) load(m state.Map) {
 	m.Load("MaxSize", &x.MaxSize)
 }
 
+func (x *TransportEndpointInfo) beforeSave() {}
+func (x *TransportEndpointInfo) save(m state.Map) {
+	x.beforeSave()
+	m.Save("NetProto", &x.NetProto)
+	m.Save("TransProto", &x.TransProto)
+	m.Save("ID", &x.ID)
+	m.Save("BindNICID", &x.BindNICID)
+	m.Save("BindAddr", &x.BindAddr)
+	m.Save("RegisterNICID", &x.RegisterNICID)
+}
+
+func (x *TransportEndpointInfo) afterLoad() {}
+func (x *TransportEndpointInfo) load(m state.Map) {
+	m.Load("NetProto", &x.NetProto)
+	m.Load("TransProto", &x.TransProto)
+	m.Load("ID", &x.ID)
+	m.Load("BindNICID", &x.BindNICID)
+	m.Load("BindAddr", &x.BindAddr)
+	m.Load("RegisterNICID", &x.RegisterNICID)
+}
+
 func init() {
 	state.Register("stack.linkAddrEntryList", (*linkAddrEntryList)(nil), state.Fns{Save: (*linkAddrEntryList).save, Load: (*linkAddrEntryList).load})
 	state.Register("stack.linkAddrEntryEntry", (*linkAddrEntryEntry)(nil), state.Fns{Save: (*linkAddrEntryEntry).save, Load: (*linkAddrEntryEntry).load})
 	state.Register("stack.TransportEndpointID", (*TransportEndpointID)(nil), state.Fns{Save: (*TransportEndpointID).save, Load: (*TransportEndpointID).load})
 	state.Register("stack.GSOType", (*GSOType)(nil), state.Fns{Save: (*GSOType).save, Load: (*GSOType).load})
 	state.Register("stack.GSO", (*GSO)(nil), state.Fns{Save: (*GSO).save, Load: (*GSO).load})
+	state.Register("stack.TransportEndpointInfo", (*TransportEndpointInfo)(nil), state.Fns{Save: (*TransportEndpointInfo).save, Load: (*TransportEndpointInfo).load})
 }