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authorKevin Krakauer <krakauer@google.com>2020-08-10 19:32:48 -0700
committergVisor bot <gvisor-bot@google.com>2020-08-10 19:34:28 -0700
commit8e31f0dc57d44fb463441f6156fba5c240369dfe (patch)
tree710ba997c1c01c7e47fe65dfb7c3471bef22dd37 /pkg/tcpip/network/ipv6/ipv6.go
parent0a8ae4b32f0dbc0b2a84c3f07c8c98e855a8f5fa (diff)
Set the NetworkProtocolNumber of all PacketBuffers.
NetworkEndpoints set the number on outgoing packets in Write() and NetworkProtocols set them on incoming packets in Parse(). Needed for #3549. PiperOrigin-RevId: 325938745
Diffstat (limited to 'pkg/tcpip/network/ipv6/ipv6.go')
-rw-r--r--pkg/tcpip/network/ipv6/ipv6.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go
index 4a0b53c45..d7d7fc611 100644
--- a/pkg/tcpip/network/ipv6/ipv6.go
+++ b/pkg/tcpip/network/ipv6/ipv6.go
@@ -117,6 +117,7 @@ func (e *endpoint) addIPHeader(r *stack.Route, hdr *buffer.Prependable, payloadS
func (e *endpoint) WritePacket(r *stack.Route, gso *stack.GSO, params stack.NetworkHeaderParams, pkt *stack.PacketBuffer) *tcpip.Error {
ip := e.addIPHeader(r, &pkt.Header, pkt.Data.Size(), params)
pkt.NetworkHeader = buffer.View(ip)
+ pkt.NetworkProtocolNumber = header.IPv6ProtocolNumber
if r.Loop&stack.PacketLoop != 0 {
// The inbound path expects the network header to still be in
@@ -152,6 +153,7 @@ func (e *endpoint) WritePackets(r *stack.Route, gso *stack.GSO, pkts stack.Packe
for pb := pkts.Front(); pb != nil; pb = pb.Next() {
ip := e.addIPHeader(r, &pb.Header, pb.Data.Size(), params)
pb.NetworkHeader = buffer.View(ip)
+ pb.NetworkProtocolNumber = header.IPv6ProtocolNumber
}
n, err := e.linkEP.WritePackets(r, gso, pkts, ProtocolNumber)
@@ -586,6 +588,7 @@ traverseExtensions:
}
ipHdr = header.IPv6(hdr)
+ pkt.NetworkProtocolNumber = header.IPv6ProtocolNumber
pkt.NetworkHeader = hdr
pkt.Data.TrimFront(len(hdr))
pkt.Data.CapLength(int(ipHdr.PayloadLength()))