diff options
| author | Bhasker Hariharan <bhaskerh@google.com> | 2021-10-12 16:24:34 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-10-12 16:27:29 -0700 |
| commit | e54ee7a990753ba0616b9dc6010323f5a411cb5f (patch) | |
| tree | 060648d18d4e9783e1c6f0b60ab2b8950e193525 /pkg | |
| parent | 08f1d96168ace77ff105da76f384aa0997a21e2f (diff) | |
Create constants for Keepalive defaults.
Fixes #6725
PiperOrigin-RevId: 402683244
Diffstat (limited to 'pkg')
| -rw-r--r-- | pkg/tcpip/transport/tcp/endpoint.go | 7 | ||||
| -rw-r--r-- | pkg/tcpip/transport/tcp/protocol.go | 12 |
2 files changed, 15 insertions, 4 deletions
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go index 6a798e980..066ffe051 100644 --- a/pkg/tcpip/transport/tcp/endpoint.go +++ b/pkg/tcpip/transport/tcp/endpoint.go @@ -813,10 +813,9 @@ func newEndpoint(s *stack.Stack, protocol *protocol, netProto tcpip.NetworkProto waiterQueue: waiterQueue, state: uint32(StateInitial), keepalive: keepalive{ - // Linux defaults. - idle: 2 * time.Hour, - interval: 75 * time.Second, - count: 9, + idle: DefaultKeepaliveIdle, + interval: DefaultKeepaliveInterval, + count: DefaultKeepaliveCount, }, uniqueID: s.UniqueID(), txHash: s.Rand().Uint32(), diff --git a/pkg/tcpip/transport/tcp/protocol.go b/pkg/tcpip/transport/tcp/protocol.go index e4410ad93..f122ea009 100644 --- a/pkg/tcpip/transport/tcp/protocol.go +++ b/pkg/tcpip/transport/tcp/protocol.go @@ -66,6 +66,18 @@ const ( // DefaultSynRetries is the default value for the number of SYN retransmits // before a connect is aborted. DefaultSynRetries = 6 + + // DefaultKeepaliveIdle is the idle time for a connection before keep-alive + // probes are sent. + DefaultKeepaliveIdle = 2 * time.Hour + + // DefaultKeepaliveInterval is the time between two successive keep-alive + // probes. + DefaultKeepaliveInterval = 75 * time.Second + + // DefaultKeepaliveCount is the number of keep-alive probes that are sent + // before declaring the connection dead. + DefaultKeepaliveCount = 9 ) const ( |