diff options
| author | Nick Brown <nickbrow@google.com> | 2021-05-11 07:23:25 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-05-11 07:25:56 -0700 |
| commit | 1daabac237ffb2b7d5711d87bfadc531dc457d08 (patch) | |
| tree | e08e1983c4bdfc65276e07dab7922598e7e1f382 /pkg/tcpip/tcpip.go | |
| parent | 1699d702cbfcf6f34bd14327b644738f996feb3b (diff) | |
Process Hop-by-Hop header when forwarding IPv6 packets
Currently, we process IPv6 extension headers when receiving packets
but not when forwarding them. This is fine for the most part, with
with one exception: RFC 8200 requires that we process the
Hop-by-Hop headers even while forwarding packets.
This CL adds that support by invoking the Hop-by-hop logic performed
when receiving packets during forwarding as well.
PiperOrigin-RevId: 373145478
Diffstat (limited to 'pkg/tcpip/tcpip.go')
| -rw-r--r-- | pkg/tcpip/tcpip.go | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index d5f941c5f..6d7e22afe 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -1530,9 +1530,10 @@ type IGMPStats struct { // IPForwardingStats collects stats related to IP forwarding (both v4 and v6). type IPForwardingStats struct { + // LINT.IfChange(IPForwardingStats) + // Unrouteable is the number of IP packets received which were dropped - // because the netstack could not construct a route to their - // destination. + // because a route to their destination could not be constructed. Unrouteable *StatCounter // ExhaustedTTL is the number of IP packets received which were dropped @@ -1547,9 +1548,16 @@ type IPForwardingStats struct { // because they contained a link-local destination address. LinkLocalDestination *StatCounter + // ExtensionHeaderProblem is the number of IP packets which were dropped + // because of a problem encountered when processing an IPv6 extension + // header. + ExtensionHeaderProblem *StatCounter + // Errors is the number of IP packets received which could not be // successfully forwarded. Errors *StatCounter + + // LINT.ThenChange(network/internal/ip/stats.go:multiCounterIPForwardingStats) } // IPStats collects IP-specific stats (both v4 and v6). |