diff options
| author | Ian Gudger <igudger@google.com> | 2019-10-07 19:28:26 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-10-07 19:29:51 -0700 |
| commit | 7c1587e3401a010d1865df61dbaf117c77dd062e (patch) | |
| tree | 53392ccc3fc1d4cfa967f0d7f72e5920ed18fa5d /runsc/boot | |
| parent | 1de0cf3563502c1460964fc2fc9dca1ee447449a (diff) | |
Implement IP_TTL.
Also change the default TTL to 64 to match Linux.
PiperOrigin-RevId: 273430341
Diffstat (limited to 'runsc/boot')
| -rw-r--r-- | runsc/boot/loader.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/runsc/boot/loader.go b/runsc/boot/loader.go index 4e57155c6..c8e5e86ee 100644 --- a/runsc/boot/loader.go +++ b/runsc/boot/loader.go @@ -930,6 +930,10 @@ func newEmptyNetworkStack(conf *Config, clock tcpip.Clock) (inet.Stack, error) { return nil, fmt.Errorf("failed to enable SACK: %v", err) } + // Set default TTLs as required by socket/netstack. + s.Stack.SetNetworkProtocolOption(ipv4.ProtocolNumber, tcpip.DefaultTTLOption(netstack.DefaultTTL)) + s.Stack.SetNetworkProtocolOption(ipv6.ProtocolNumber, tcpip.DefaultTTLOption(netstack.DefaultTTL)) + // Enable Receive Buffer Auto-Tuning. if err := s.Stack.SetTransportProtocolOption(tcp.ProtocolNumber, tcpip.ModerateReceiveBufferOption(true)); err != nil { return nil, fmt.Errorf("SetTransportProtocolOption failed: %v", err) |