diff options
| author | Bhasker Hariharan <bhaskerh@google.com> | 2020-08-25 07:15:50 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-25 07:17:32 -0700 |
| commit | ae332d96e4bd8b37be16901317d83e24e31c24d7 (patch) | |
| tree | 9becb4457f63a694deeacccfcba1b4f3f5fc8dfa /pkg/sentry | |
| parent | c61f6fcf6ab3178da3a297d3e3199379b188ce61 (diff) | |
Fix TCP_LINGER2 behavior to match linux.
We still deviate a bit from linux in how long we will actually wait in
FIN-WAIT-2. Linux seems to cap it with TIME_WAIT_LEN and it's not completely
obvious as to why it's done that way. For now I think we can ignore that and
fix it if it really is an issue.
PiperOrigin-RevId: 328324922
Diffstat (limited to 'pkg/sentry')
| -rw-r--r-- | pkg/sentry/socket/netstack/netstack.go | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go index 4d0e33696..921464f5d 100644 --- a/pkg/sentry/socket/netstack/netstack.go +++ b/pkg/sentry/socket/netstack/netstack.go @@ -1409,8 +1409,12 @@ func getSockOptTCP(t *kernel.Task, ep commonEndpoint, name, outLen int) (marshal if err := ep.GetSockOpt(&v); err != nil { return nil, syserr.TranslateNetstackError(err) } - - lingerTimeout := primitive.Int32(time.Duration(v) / time.Second) + var lingerTimeout primitive.Int32 + if v >= 0 { + lingerTimeout = primitive.Int32(time.Duration(v) / time.Second) + } else { + lingerTimeout = -1 + } return &lingerTimeout, nil case linux.TCP_DEFER_ACCEPT: @@ -1967,7 +1971,7 @@ func setSockOptTCP(t *kernel.Task, ep commonEndpoint, name int, optVal []byte) * return syserr.ErrInvalidArgument } - v := usermem.ByteOrder.Uint32(optVal) + v := int32(usermem.ByteOrder.Uint32(optVal)) return syserr.TranslateNetstackError(ep.SetSockOpt(tcpip.TCPLingerTimeoutOption(time.Second * time.Duration(v)))) case linux.TCP_DEFER_ACCEPT: |