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Support IPV6_RECVPKTINFO on UDP sockets

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PiperOrigin-RevId: 397631833
This commit is contained in:
Ghanan Gowripalan
2021-09-19 13:15:28 -07:00
committed by gVisor bot
parent 09477db2bc
commit 89a0011c10
10 changed files with 267 additions and 53 deletions
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pkg/sentry/socket/netstack/netstack.go
+19 -1
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@@ -1371,6 +1371,14 @@ func getSockOptIPv6(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name
v := primitive.Int32(boolToInt32(ep.SocketOptions().GetReceiveOriginalDstAddress()))
return &v, nil
case linux.IPV6_RECVPKTINFO:
if outLen < sizeOfInt32 {
return nil, syserr.ErrInvalidArgument
}
v := primitive.Int32(boolToInt32(ep.SocketOptions().GetIPv6ReceivePacketInfo()))
return &v, nil
case linux.IP6T_ORIGINAL_DST:
if outLen < sockAddrInet6Size {
return nil, syserr.ErrInvalidArgument
@@ -2127,6 +2135,15 @@ func setSockOptIPv6(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name
ep.SocketOptions().SetReceiveOriginalDstAddress(v != 0)
return nil
case linux.IPV6_RECVPKTINFO:
if len(optVal) < sizeOfInt32 {
return syserr.ErrInvalidArgument
}
v := int32(hostarch.ByteOrder.Uint32(optVal))
ep.SocketOptions().SetIPv6ReceivePacketInfo(v != 0)
return nil
case linux.IPV6_TCLASS:
if len(optVal) < sizeOfInt32 {
return syserr.ErrInvalidArgument
@@ -2516,7 +2533,6 @@ func emitUnimplementedEventIPv6(t *kernel.Task, name int) {
linux.IPV6_RECVHOPLIMIT,
linux.IPV6_RECVHOPOPTS,
linux.IPV6_RECVPATHMTU,
linux.IPV6_RECVPKTINFO,
linux.IPV6_RECVRTHDR,
linux.IPV6_RTHDR,
linux.IPV6_RTHDRDSTOPTS,
@@ -2742,6 +2758,8 @@ func (s *socketOpsCommon) controlMessages(cm tcpip.ControlMessages) socket.Contr
TClass: readCM.TClass,
HasIPPacketInfo: readCM.HasIPPacketInfo,
PacketInfo: readCM.PacketInfo,
HasIPv6PacketInfo: readCM.HasIPv6PacketInfo,
IPv6PacketInfo: readCM.IPv6PacketInfo,
OriginalDstAddress: readCM.OriginalDstAddress,
SockErr: readCM.SockErr,
},