Internal change.

PiperOrigin-RevId: 294952610

pkg/abi/linux/socket.go

@@ -411,6 +411,15 @@ type ControlMessageCredentials struct {
 	GID uint32
 }
 
+// A ControlMessageIPPacketInfo is IP_PKTINFO socket control message.
+//
+// ControlMessageIPPacketInfo represents struct in_pktinfo from linux/in.h.
+type ControlMessageIPPacketInfo struct {
+	NIC             int32
+	LocalAddr       InetAddr
+	DestinationAddr InetAddr
+}
+
 // SizeOfControlMessageCredentials is the binary size of a
 // ControlMessageCredentials struct.
 var SizeOfControlMessageCredentials = int(binary.Size(ControlMessageCredentials{}))
@@ -431,6 +440,10 @@ const SizeOfControlMessageTOS = 1
 // SizeOfControlMessageTClass is the size of an IPV6_TCLASS control message.
 const SizeOfControlMessageTClass = 4
 
+// SizeOfControlMessageIPPacketInfo is the size of an IP_PKTINFO
+// control message.
+const SizeOfControlMessageIPPacketInfo = 12
+
 // SCM_MAX_FD is the maximum number of FDs accepted in a single sendmsg call.
 // From net/scm.h.
 const SCM_MAX_FD = 253