Support IPV6_RECVPKTINFO on UDP sockets

PiperOrigin-RevId: 397631833

1 files changed, 13 insertions, 0 deletions

diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go
index 95871b8a5..f60e42997 100644
--- a/pkg/abi/linux/socket.go
+++ b/pkg/abi/linux/socket.go
@@ -542,6 +542,15 @@ type ControlMessageIPPacketInfo struct {
 	DestinationAddr InetAddr
 }
 
+// ControlMessageIPv6PacketInfo represents struct in6_pktinfo from linux/ipv6.h.
+//
+// +marshal
+// +stateify savable
+type ControlMessageIPv6PacketInfo struct {
+	Addr Inet6Addr
+	NIC  uint32
+}
+
 // SizeOfControlMessageCredentials is the binary size of a
 // ControlMessageCredentials struct.
 var SizeOfControlMessageCredentials = (*ControlMessageCredentials)(nil).SizeBytes()
@@ -566,6 +575,10 @@ const SizeOfControlMessageTClass = 4
 // control message.
 const SizeOfControlMessageIPPacketInfo = 12
 
+// SizeOfControlMessageIPv6PacketInfo is the size of a
+// ControlMessageIPv6PacketInfo.
+const SizeOfControlMessageIPv6PacketInfo = 20
+
 // SCM_MAX_FD is the maximum number of FDs accepted in a single sendmsg call.
 // From net/scm.h.
 const SCM_MAX_FD = 253