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Protocol filtering works.

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This commit is contained in:
Kevin Krakauer
2020-01-13 16:10:00 -08:00
parent d51eaa59c0
commit bd29289409
1 changed files with 1 additions and 1 deletions
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pkg/tcpip/iptables/iptables.go
+1 -1
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@@ -187,7 +187,7 @@ func (it *IPTables) checkRule(hook Hook, pkt tcpip.PacketBuffer, table Table, ru
// First check whether the packet matches the IP header filter.
// TODO(gvisor.dev/issue/170): Support other fields of the filter.
if rule.Filter.Protocol != header.IPv4(pkt.NetworkHeader).TransportProtocol() {
if rule.Filter.Protocol != 0 && rule.Filter.Protocol != header.IPv4(pkt.NetworkHeader).TransportProtocol() {
return Continue
}