diff options
| author | Nick Brown <nickbrow@google.com> | 2021-05-12 16:51:06 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-05-12 16:53:43 -0700 |
| commit | 29f4b71eb3db3d082735bd4316006d6bcc3230a1 (patch) | |
| tree | 868142adfcffdb8ba6a605f67fbd4a520d5cac8f /pkg/tcpip/stack/registration.go | |
| parent | 9854e5ac4d7f80a7db10270313bce7e485ce6f9b (diff) | |
Send ICMP errors when unable to forward fragmented packets
Before this change, we would silently drop packets when the packet was too
big to be sent out through the NIC (and, for IPv4 packets, if DF was set).
This change brings us into line with RFC 792 (IPv4) and RFC 4443 (IPv6),
both of which specify that gateways should return an ICMP error to the sender
when the packet can't be fragmented.
PiperOrigin-RevId: 373480078
Diffstat (limited to 'pkg/tcpip/stack/registration.go')
| -rw-r--r-- | pkg/tcpip/stack/registration.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go index e26225552..a82c807b4 100644 --- a/pkg/tcpip/stack/registration.go +++ b/pkg/tcpip/stack/registration.go @@ -55,6 +55,9 @@ type NetworkPacketInfo struct { // LocalAddressBroadcast is true if the packet's local address is a broadcast // address. LocalAddressBroadcast bool + + // IsForwardedPacket is true if the packet is being forwarded. + IsForwardedPacket bool } // TransportErrorKind enumerates error types that are handled by the transport |