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// Copyright 2020 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ip
import "gvisor.dev/gvisor/pkg/tcpip"
// LINT.IfChange(MultiCounterIPForwardingStats)
// MultiCounterIPForwardingStats holds IP forwarding statistics. Each counter
// may have several versions.
type MultiCounterIPForwardingStats struct {
// Unrouteable is the number of IP packets received which were dropped
// because the netstack could not construct a route to their
// destination.
Unrouteable tcpip.MultiCounterStat
// ExhaustedTTL is the number of IP packets received which were dropped
// because their TTL was exhausted.
ExhaustedTTL tcpip.MultiCounterStat
// LinkLocalSource is the number of IP packets which were dropped
// because they contained a link-local source address.
LinkLocalSource tcpip.MultiCounterStat
// LinkLocalDestination is the number of IP packets which were dropped
// because they contained a link-local destination address.
LinkLocalDestination tcpip.MultiCounterStat
// PacketTooBig is the number of IP packets which were dropped because they
// were too big for the outgoing MTU.
PacketTooBig tcpip.MultiCounterStat
// HostUnreachable is the number of IP packets received which could not be
// successfully forwarded due to an unresolvable next hop.
HostUnreachable tcpip.MultiCounterStat
// ExtensionHeaderProblem is the number of IP packets which were dropped
// because of a problem encountered when processing an IPv6 extension
// header.
ExtensionHeaderProblem tcpip.MultiCounterStat
// Errors is the number of IP packets received which could not be
// successfully forwarded.
Errors tcpip.MultiCounterStat
}
// Init sets internal counters to track a and b counters.
func (m *MultiCounterIPForwardingStats) Init(a, b *tcpip.IPForwardingStats) {
m.Unrouteable.Init(a.Unrouteable, b.Unrouteable)
m.Errors.Init(a.Errors, b.Errors)
m.LinkLocalSource.Init(a.LinkLocalSource, b.LinkLocalSource)
m.LinkLocalDestination.Init(a.LinkLocalDestination, b.LinkLocalDestination)
m.ExtensionHeaderProblem.Init(a.ExtensionHeaderProblem, b.ExtensionHeaderProblem)
m.PacketTooBig.Init(a.PacketTooBig, b.PacketTooBig)
m.ExhaustedTTL.Init(a.ExhaustedTTL, b.ExhaustedTTL)
m.HostUnreachable.Init(a.HostUnreachable, b.HostUnreachable)
}
// LINT.ThenChange(:MultiCounterIPForwardingStats, ../../../tcpip.go:IPForwardingStats)
// LINT.IfChange(MultiCounterIPStats)
// MultiCounterIPStats holds IP statistics, each counter may have several
// versions.
type MultiCounterIPStats struct {
// PacketsReceived is the number of IP packets received from the link
// layer.
PacketsReceived tcpip.MultiCounterStat
// ValidPacketsReceived is the number of valid IP packets that reached the IP
// layer.
ValidPacketsReceived tcpip.MultiCounterStat
// DisabledPacketsReceived is the number of IP packets received from
// the link layer when the IP layer is disabled.
DisabledPacketsReceived tcpip.MultiCounterStat
// InvalidDestinationAddressesReceived is the number of IP packets
// received with an unknown or invalid destination address.
InvalidDestinationAddressesReceived tcpip.MultiCounterStat
// InvalidSourceAddressesReceived is the number of IP packets received
// with a source address that should never have been received on the
// wire.
InvalidSourceAddressesReceived tcpip.MultiCounterStat
// PacketsDelivered is the number of incoming IP packets successfully
// delivered to the transport layer.
PacketsDelivered tcpip.MultiCounterStat
// PacketsSent is the number of IP packets sent via WritePacket.
PacketsSent tcpip.MultiCounterStat
// OutgoingPacketErrors is the number of IP packets which failed to
// write to a link-layer endpoint.
OutgoingPacketErrors tcpip.MultiCounterStat
// MalformedPacketsReceived is the number of IP Packets that were
// dropped due to the IP packet header failing validation checks.
MalformedPacketsReceived tcpip.MultiCounterStat
// MalformedFragmentsReceived is the number of IP Fragments that were
// dropped due to the fragment failing validation checks.
MalformedFragmentsReceived tcpip.MultiCounterStat
// IPTablesPreroutingDropped is the number of IP packets dropped in the
// Prerouting chain.
IPTablesPreroutingDropped tcpip.MultiCounterStat
// IPTablesInputDropped is the number of IP packets dropped in the
// Input chain.
IPTablesInputDropped tcpip.MultiCounterStat
// IPTablesForwardDropped is the number of IP packets dropped in the
// Forward chain.
IPTablesForwardDropped tcpip.MultiCounterStat
// IPTablesOutputDropped is the number of IP packets dropped in the
// Output chain.
IPTablesOutputDropped tcpip.MultiCounterStat
// IPTablesPostroutingDropped is the number of IP packets dropped in
// the Postrouting chain.
IPTablesPostroutingDropped tcpip.MultiCounterStat
// TODO(https://gvisor.dev/issues/5529): Move the IPv4-only option
// stats out of IPStats.
// OptionTimestampReceived is the number of Timestamp options seen.
OptionTimestampReceived tcpip.MultiCounterStat
// OptionRecordRouteReceived is the number of Record Route options
// seen.
OptionRecordRouteReceived tcpip.MultiCounterStat
// OptionRouterAlertReceived is the number of Router Alert options
// seen.
OptionRouterAlertReceived tcpip.MultiCounterStat
// OptionUnknownReceived is the number of unknown IP options seen.
OptionUnknownReceived tcpip.MultiCounterStat
// Forwarding collects stats related to IP forwarding.
Forwarding MultiCounterIPForwardingStats
}
// Init sets internal counters to track a and b counters.
func (m *MultiCounterIPStats) Init(a, b *tcpip.IPStats) {
m.PacketsReceived.Init(a.PacketsReceived, b.PacketsReceived)
m.ValidPacketsReceived.Init(a.ValidPacketsReceived, b.ValidPacketsReceived)
m.DisabledPacketsReceived.Init(a.DisabledPacketsReceived, b.DisabledPacketsReceived)
m.InvalidDestinationAddressesReceived.Init(a.InvalidDestinationAddressesReceived, b.InvalidDestinationAddressesReceived)
m.InvalidSourceAddressesReceived.Init(a.InvalidSourceAddressesReceived, b.InvalidSourceAddressesReceived)
m.PacketsDelivered.Init(a.PacketsDelivered, b.PacketsDelivered)
m.PacketsSent.Init(a.PacketsSent, b.PacketsSent)
m.OutgoingPacketErrors.Init(a.OutgoingPacketErrors, b.OutgoingPacketErrors)
m.MalformedPacketsReceived.Init(a.MalformedPacketsReceived, b.MalformedPacketsReceived)
m.MalformedFragmentsReceived.Init(a.MalformedFragmentsReceived, b.MalformedFragmentsReceived)
m.IPTablesPreroutingDropped.Init(a.IPTablesPreroutingDropped, b.IPTablesPreroutingDropped)
m.IPTablesInputDropped.Init(a.IPTablesInputDropped, b.IPTablesInputDropped)
m.IPTablesForwardDropped.Init(a.IPTablesForwardDropped, b.IPTablesForwardDropped)
m.IPTablesOutputDropped.Init(a.IPTablesOutputDropped, b.IPTablesOutputDropped)
m.IPTablesPostroutingDropped.Init(a.IPTablesPostroutingDropped, b.IPTablesPostroutingDropped)
m.OptionTimestampReceived.Init(a.OptionTimestampReceived, b.OptionTimestampReceived)
m.OptionRecordRouteReceived.Init(a.OptionRecordRouteReceived, b.OptionRecordRouteReceived)
m.OptionRouterAlertReceived.Init(a.OptionRouterAlertReceived, b.OptionRouterAlertReceived)
m.OptionUnknownReceived.Init(a.OptionUnknownReceived, b.OptionUnknownReceived)
m.Forwarding.Init(&a.Forwarding, &b.Forwarding)
}
// LINT.ThenChange(:MultiCounterIPStats, ../../../tcpip.go:IPStats)
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