diff options
| author | Mithun Iyer <iyerm@google.com> | 2020-05-13 21:25:28 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-05-13 21:26:54 -0700 |
| commit | f1ad2d54ab28dcdaaa5d7aa95d8f1b370b6fd36d (patch) | |
| tree | 77f83210bcbc6679660c4be2baff5e0b599d69b2 /pkg/tcpip/tcpip.go | |
| parent | 8b8774d7152eb61fc6273bbae679e80c34188517 (diff) | |
Fix TCP segment retransmit timeout handling.
As per RFC 1122 and Linux retransmit timeout handling:
- The segment retransmit timeout needs to exponentially increase and
cap at a predefined value.
- TCP connection needs to timeout after a predefined number of
segment retransmissions.
- TCP connection should not timeout when the retranmission timeout
exceeds MaxRTO, predefined upper bound.
Fixes #2673
PiperOrigin-RevId: 311463961
Diffstat (limited to 'pkg/tcpip/tcpip.go')
| -rw-r--r-- | pkg/tcpip/tcpip.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index 6270146fa..45e930ad8 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -698,6 +698,14 @@ type TCPDeferAcceptOption time.Duration // default MinRTO used by the Stack. type TCPMinRTOOption time.Duration +// TCPMaxRTOOption is use by SetSockOpt/GetSockOpt to allow overriding +// default MaxRTO used by the Stack. +type TCPMaxRTOOption time.Duration + +// TCPMaxRetriesOption is used by SetSockOpt/GetSockOpt to set/get the +// maximum number of retransmits after which we time out the connection. +type TCPMaxRetriesOption uint64 + // TCPSynRcvdCountThresholdOption is used by SetSockOpt/GetSockOpt to specify // the number of endpoints that can be in SYN-RCVD state before the stack // switches to using SYN cookies. |