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| author | Nayana Bidari <nybidari@google.com> | 2020-08-05 20:45:02 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-05 20:50:06 -0700 |
| commit | 35312a95c4c8626365b4ece5ffb0bcab44b4bede (patch) | |
| tree | ecf3ac9def6dcf0e366acfcd2e694a3965edb4dd /pkg/sentry/socket/hostinet | |
| parent | 7ed4b2b5a6928b3a4a88d0117a764dd4795be61a (diff) | |
Add loss recovery option for TCP.
/proc/sys/net/ipv4/tcp_recovery is used to enable RACK loss
recovery in TCP.
PiperOrigin-RevId: 325157807
Diffstat (limited to 'pkg/sentry/socket/hostinet')
| -rw-r--r-- | pkg/sentry/socket/hostinet/stack.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pkg/sentry/socket/hostinet/stack.go b/pkg/sentry/socket/hostinet/stack.go index a48082631..fda3dcb35 100644 --- a/pkg/sentry/socket/hostinet/stack.go +++ b/pkg/sentry/socket/hostinet/stack.go @@ -53,6 +53,7 @@ type Stack struct { interfaceAddrs map[int32][]inet.InterfaceAddr routes []inet.Route supportsIPv6 bool + tcpRecovery inet.TCPLossRecovery tcpRecvBufSize inet.TCPBufferSize tcpSendBufSize inet.TCPBufferSize tcpSACKEnabled bool @@ -350,6 +351,16 @@ func (s *Stack) SetTCPSACKEnabled(enabled bool) error { return syserror.EACCES } +// TCPRecovery implements inet.Stack.TCPRecovery. +func (s *Stack) TCPRecovery() (inet.TCPLossRecovery, error) { + return s.tcpRecovery, nil +} + +// SetTCPRecovery implements inet.Stack.SetTCPRecovery. +func (s *Stack) SetTCPRecovery(recovery inet.TCPLossRecovery) error { + return syserror.EACCES +} + // getLine reads one line from proc file, with specified prefix. // The last argument, withHeader, specifies if it contains line header. func getLine(f *os.File, prefix string, withHeader bool) string { |