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Add protocol state to TCPINFO

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Add missing protocol state to TCPINFO struct and update packetimpact.
This re-arranges the TCP state definitions to align with Linux.

Fixes #478

PiperOrigin-RevId: 374996751
This commit is contained in:
Mithun Iyer
2021-05-20 19:15:49 -07:00
committed by gVisor bot
parent ae96e00bd9
commit 9157a91a4e
15 changed files with 183 additions and 83 deletions
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pkg/sentry/socket/netstack/netstack.go
+8 -6
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@@ -1127,7 +1127,14 @@ func getSockOptTCP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name,
// TODO(b/64800844): Translate fields once they are added to
// tcpip.TCPInfoOption.
info := linux.TCPInfo{}
info := linux.TCPInfo{
State: uint8(v.State),
RTO: uint32(v.RTO / time.Microsecond),
RTT: uint32(v.RTT / time.Microsecond),
RTTVar: uint32(v.RTTVar / time.Microsecond),
SndSsthresh: v.SndSsthresh,
SndCwnd: v.SndCwnd,
}
switch v.CcState {
case tcpip.RTORecovery:
info.CaState = linux.TCP_CA_Loss
@@ -1138,11 +1145,6 @@ func getSockOptTCP(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, name,
case tcpip.Open:
info.CaState = linux.TCP_CA_Open
}
info.RTO = uint32(v.RTO / time.Microsecond)
info.RTT = uint32(v.RTT / time.Microsecond)
info.RTTVar = uint32(v.RTTVar / time.Microsecond)
info.SndSsthresh = v.SndSsthresh
info.SndCwnd = v.SndCwnd
// In netstack reorderSeen is updated only when RACK is enabled.
// We only track whether the reordering is seen, which is