diff options
| author | Ghanan Gowripalan <ghanan@google.com> | 2021-09-28 14:04:38 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-09-28 14:07:35 -0700 |
| commit | ed083bac408cfeb68ae401b8cec7cc1be5722562 (patch) | |
| tree | 5678c9e739df9906d2c187de5291ec50f000815f /pkg/tcpip/network/ipv4 | |
| parent | e251f6cc5c2641e000846b35e4aa7f0d41c4b319 (diff) | |
Support naive Masquerade NAT target
* Does not accept a port range (Issue #5772).
* Does not support checking for tuple conflits (Issue #5773).
PiperOrigin-RevId: 399524088
Diffstat (limited to 'pkg/tcpip/network/ipv4')
| -rw-r--r-- | pkg/tcpip/network/ipv4/ipv4.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go index dda473e48..9b71738ae 100644 --- a/pkg/tcpip/network/ipv4/ipv4.go +++ b/pkg/tcpip/network/ipv4/ipv4.go @@ -466,7 +466,7 @@ func (e *endpoint) writePacket(r *stack.Route, pkt *stack.PacketBuffer, headerIn // Postrouting NAT can only change the source address, and does not alter the // route or outgoing interface of the packet. outNicName := e.protocol.stack.FindNICNameFromID(e.nic.ID()) - if ok := e.protocol.stack.IPTables().CheckPostrouting(pkt, r, outNicName); !ok { + if ok := e.protocol.stack.IPTables().CheckPostrouting(pkt, r, e, outNicName); !ok { // iptables is telling us to drop the packet. e.stats.ip.IPTablesPostroutingDropped.Increment() return nil @@ -576,7 +576,7 @@ func (e *endpoint) WritePackets(r *stack.Route, pkts stack.PacketBufferList, par // We ignore the list of NAT-ed packets here because Postrouting NAT can only // change the source address, and does not alter the route or outgoing // interface of the packet. - postroutingDropped, _ := e.protocol.stack.IPTables().CheckPostroutingPackets(pkts, r, outNicName) + postroutingDropped, _ := e.protocol.stack.IPTables().CheckPostroutingPackets(pkts, r, e, outNicName) stats.IPTablesPostroutingDropped.IncrementBy(uint64(len(postroutingDropped))) for pkt := range postroutingDropped { pkts.Remove(pkt) |