diff options
Diffstat (limited to 'pkg/sentry/socket/netstack')
| -rw-r--r-- | pkg/sentry/socket/netstack/netstack.go | 2 | ||||
| -rw-r--r-- | pkg/sentry/socket/netstack/stack.go | 93 |
2 files changed, 94 insertions, 1 deletions
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go index debf9bce0..69dbfd197 100644 --- a/pkg/sentry/socket/netstack/netstack.go +++ b/pkg/sentry/socket/netstack/netstack.go @@ -149,6 +149,8 @@ var Metrics = tcpip.Stats{ TCP: tcpip.TCPStats{ ActiveConnectionOpenings: mustCreateMetric("/netstack/tcp/active_connection_openings", "Number of connections opened successfully via Connect."), PassiveConnectionOpenings: mustCreateMetric("/netstack/tcp/passive_connection_openings", "Number of connections opened successfully via Listen."), + CurrentEstablished: mustCreateMetric("/netstack/tcp/current_established", "Number of connections in either ESTABLISHED or CLOSE-WAIT state now."), + EstablishedResets: mustCreateMetric("/netstack/tcp/established_resets", "Number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state"), ListenOverflowSynDrop: mustCreateMetric("/netstack/tcp/listen_overflow_syn_drop", "Number of times the listen queue overflowed and a SYN was dropped."), ListenOverflowAckDrop: mustCreateMetric("/netstack/tcp/listen_overflow_ack_drop", "Number of times the listen queue overflowed and the final ACK in the handshake was dropped."), ListenOverflowSynCookieSent: mustCreateMetric("/netstack/tcp/listen_overflow_syn_cookie_sent", "Number of times a SYN cookie was sent."), diff --git a/pkg/sentry/socket/netstack/stack.go b/pkg/sentry/socket/netstack/stack.go index fda0156e5..d5db8c17c 100644 --- a/pkg/sentry/socket/netstack/stack.go +++ b/pkg/sentry/socket/netstack/stack.go @@ -144,7 +144,98 @@ func (s *Stack) SetTCPSACKEnabled(enabled bool) error { // Statistics implements inet.Stack.Statistics. func (s *Stack) Statistics(stat interface{}, arg string) error { - return syserr.ErrEndpointOperation.ToError() + switch stats := stat.(type) { + case *inet.StatSNMPIP: + ip := Metrics.IP + *stats = inet.StatSNMPIP{ + 0, // TODO(gvisor.dev/issue/969): Support Ip/Forwarding. + 0, // TODO(gvisor.dev/issue/969): Support Ip/DefaultTTL. + ip.PacketsReceived.Value(), // InReceives. + 0, // TODO(gvisor.dev/issue/969): Support Ip/InHdrErrors. + ip.InvalidAddressesReceived.Value(), // InAddrErrors. + 0, // TODO(gvisor.dev/issue/969): Support Ip/ForwDatagrams. + 0, // TODO(gvisor.dev/issue/969): Support Ip/InUnknownProtos. + 0, // TODO(gvisor.dev/issue/969): Support Ip/InDiscards. + ip.PacketsDelivered.Value(), // InDelivers. + ip.PacketsSent.Value(), // OutRequests. + ip.OutgoingPacketErrors.Value(), // OutDiscards. + 0, // TODO(gvisor.dev/issue/969): Support Ip/OutNoRoutes. + 0, // TODO(gvisor.dev/issue/969): Support Ip/ReasmTimeout. + 0, // TODO(gvisor.dev/issue/969): Support Ip/ReasmReqds. + 0, // TODO(gvisor.dev/issue/969): Support Ip/ReasmOKs. + 0, // TODO(gvisor.dev/issue/969): Support Ip/ReasmFails. + 0, // TODO(gvisor.dev/issue/969): Support Ip/FragOKs. + 0, // TODO(gvisor.dev/issue/969): Support Ip/FragFails. + 0, // TODO(gvisor.dev/issue/969): Support Ip/FragCreates. + } + case *inet.StatSNMPICMP: + in := Metrics.ICMP.V4PacketsReceived.ICMPv4PacketStats + out := Metrics.ICMP.V4PacketsSent.ICMPv4PacketStats + *stats = inet.StatSNMPICMP{ + 0, // TODO(gvisor.dev/issue/969): Support Icmp/InMsgs. + Metrics.ICMP.V4PacketsSent.Dropped.Value(), // InErrors. + 0, // TODO(gvisor.dev/issue/969): Support Icmp/InCsumErrors. + in.DstUnreachable.Value(), // InDestUnreachs. + in.TimeExceeded.Value(), // InTimeExcds. + in.ParamProblem.Value(), // InParmProbs. + in.SrcQuench.Value(), // InSrcQuenchs. + in.Redirect.Value(), // InRedirects. + in.Echo.Value(), // InEchos. + in.EchoReply.Value(), // InEchoReps. + in.Timestamp.Value(), // InTimestamps. + in.TimestampReply.Value(), // InTimestampReps. + in.InfoRequest.Value(), // InAddrMasks. + in.InfoReply.Value(), // InAddrMaskReps. + 0, // TODO(gvisor.dev/issue/969): Support Icmp/OutMsgs. + Metrics.ICMP.V4PacketsReceived.Invalid.Value(), // OutErrors. + out.DstUnreachable.Value(), // OutDestUnreachs. + out.TimeExceeded.Value(), // OutTimeExcds. + out.ParamProblem.Value(), // OutParmProbs. + out.SrcQuench.Value(), // OutSrcQuenchs. + out.Redirect.Value(), // OutRedirects. + out.Echo.Value(), // OutEchos. + out.EchoReply.Value(), // OutEchoReps. + out.Timestamp.Value(), // OutTimestamps. + out.TimestampReply.Value(), // OutTimestampReps. + out.InfoRequest.Value(), // OutAddrMasks. + out.InfoReply.Value(), // OutAddrMaskReps. + } + case *inet.StatSNMPTCP: + tcp := Metrics.TCP + // RFC 2012 (updates 1213): SNMPv2-MIB-TCP. + *stats = inet.StatSNMPTCP{ + 1, // RtoAlgorithm. + 200, // RtoMin. + 120000, // RtoMax. + (1<<64 - 1), // MaxConn. + tcp.ActiveConnectionOpenings.Value(), // ActiveOpens. + tcp.PassiveConnectionOpenings.Value(), // PassiveOpens. + tcp.FailedConnectionAttempts.Value(), // AttemptFails. + tcp.EstablishedResets.Value(), // EstabResets. + tcp.CurrentEstablished.Value(), // CurrEstab. + tcp.ValidSegmentsReceived.Value(), // InSegs. + tcp.SegmentsSent.Value(), // OutSegs. + tcp.Retransmits.Value(), // RetransSegs. + tcp.InvalidSegmentsReceived.Value(), // InErrs. + tcp.ResetsSent.Value(), // OutRsts. + tcp.ChecksumErrors.Value(), // InCsumErrors. + } + case *inet.StatSNMPUDP: + udp := Metrics.UDP + *stats = inet.StatSNMPUDP{ + udp.PacketsReceived.Value(), // InDatagrams. + udp.UnknownPortErrors.Value(), // NoPorts. + 0, // TODO(gvisor.dev/issue/969): Support Udp/InErrors. + udp.PacketsSent.Value(), // OutDatagrams. + udp.ReceiveBufferErrors.Value(), // RcvbufErrors. + 0, // TODO(gvisor.dev/issue/969): Support Udp/SndbufErrors. + 0, // TODO(gvisor.dev/issue/969): Support Udp/InCsumErrors. + 0, // TODO(gvisor.dev/issue/969): Support Udp/IgnoredMulti. + } + default: + return syserr.ErrEndpointOperation.ToError() + } + return nil } // RouteTable implements inet.Stack.RouteTable. |