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| author | Nayana Bidari <nybidari@google.com> | 2021-01-27 16:11:49 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-01-27 16:14:50 -0800 |
| commit | 99988e45ed651f64e16e2f2663b06b4a1eee50d4 (patch) | |
| tree | b5e4682669273698d6c84fbec56ace958afcf43a /pkg/abi/linux | |
| parent | cdf49c4433a83d9be6e8a3fb8b09bf457661d39f (diff) | |
Add support for more fields in netstack for TCP_INFO
This CL adds support for the following fields:
- RTT, RTTVar, RTO
- send congestion window (sndCwnd) and send slow start threshold (sndSsthresh)
- congestion control state(CaState)
- ReorderSeen
PiperOrigin-RevId: 354195361
Diffstat (limited to 'pkg/abi/linux')
| -rw-r--r-- | pkg/abi/linux/socket.go | 12 | ||||
| -rw-r--r-- | pkg/abi/linux/tcp.go | 9 |
2 files changed, 21 insertions, 0 deletions
diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go index 8591acbf2..cb33c37bd 100644 --- a/pkg/abi/linux/socket.go +++ b/pkg/abi/linux/socket.go @@ -416,6 +416,18 @@ type TCPInfo struct { RwndLimited uint64 // SndBufLimited is the time in microseconds limited by send buffer. SndBufLimited uint64 + + Delievered uint32 + DelieveredCe uint32 + + // BytesSent is RFC4898 tcpEStatsPerfHCDataOctetsOut. + BytesSent uint64 + // BytesRetrans is RFC4898 tcpEStatsPerfOctetsRetrans. + BytesRetrans uint64 + // DSACKDups is RFC4898 tcpEStatsStackDSACKDups. + DSACKDups uint32 + // ReordSeen is the number of reordering events seen. + ReordSeen uint32 } // SizeOfTCPInfo is the binary size of a TCPInfo struct. diff --git a/pkg/abi/linux/tcp.go b/pkg/abi/linux/tcp.go index 2a8d4708b..1a3c0916f 100644 --- a/pkg/abi/linux/tcp.go +++ b/pkg/abi/linux/tcp.go @@ -59,3 +59,12 @@ const ( MAX_TCP_KEEPINTVL = 32767 MAX_TCP_KEEPCNT = 127 ) + +// Congestion control states from include/uapi/linux/tcp.h. +const ( + TCP_CA_Open = 0 + TCP_CA_Disorder = 1 + TCP_CA_CWR = 2 + TCP_CA_Recovery = 3 + TCP_CA_Loss = 4 +) |