github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/tcpip/network/ipv6/stats.go (about)

     1  // Copyright 2020 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package ipv6
    16  
    17  import (
    18  	"github.com/SagerNet/gvisor/pkg/tcpip"
    19  	"github.com/SagerNet/gvisor/pkg/tcpip/network/internal/ip"
    20  	"github.com/SagerNet/gvisor/pkg/tcpip/stack"
    21  )
    22  
    23  var _ stack.IPNetworkEndpointStats = (*Stats)(nil)
    24  
    25  // Stats holds statistics related to the IPv6 protocol family.
    26  type Stats struct {
    27  	// IP holds IPv6 statistics.
    28  	IP tcpip.IPStats
    29  
    30  	// ICMP holds ICMPv6 statistics.
    31  	ICMP tcpip.ICMPv6Stats
    32  
    33  	// UnhandledRouterAdvertisements is the number of Router Advertisements that
    34  	// were observed but not handled.
    35  	UnhandledRouterAdvertisements *tcpip.StatCounter
    36  }
    37  
    38  // IsNetworkEndpointStats implements stack.NetworkEndpointStats.
    39  func (*Stats) IsNetworkEndpointStats() {}
    40  
    41  // IPStats implements stack.IPNetworkEndointStats
    42  func (s *Stats) IPStats() *tcpip.IPStats {
    43  	return &s.IP
    44  }
    45  
    46  type sharedStats struct {
    47  	localStats Stats
    48  	ip         ip.MultiCounterIPStats
    49  	icmp       multiCounterICMPv6Stats
    50  }
    51  
    52  // LINT.IfChange(multiCounterICMPv6PacketStats)
    53  
    54  type multiCounterICMPv6PacketStats struct {
    55  	echoRequest             tcpip.MultiCounterStat
    56  	echoReply               tcpip.MultiCounterStat
    57  	dstUnreachable          tcpip.MultiCounterStat
    58  	packetTooBig            tcpip.MultiCounterStat
    59  	timeExceeded            tcpip.MultiCounterStat
    60  	paramProblem            tcpip.MultiCounterStat
    61  	routerSolicit           tcpip.MultiCounterStat
    62  	routerAdvert            tcpip.MultiCounterStat
    63  	neighborSolicit         tcpip.MultiCounterStat
    64  	neighborAdvert          tcpip.MultiCounterStat
    65  	redirectMsg             tcpip.MultiCounterStat
    66  	multicastListenerQuery  tcpip.MultiCounterStat
    67  	multicastListenerReport tcpip.MultiCounterStat
    68  	multicastListenerDone   tcpip.MultiCounterStat
    69  }
    70  
    71  func (m *multiCounterICMPv6PacketStats) init(a, b *tcpip.ICMPv6PacketStats) {
    72  	m.echoRequest.Init(a.EchoRequest, b.EchoRequest)
    73  	m.echoReply.Init(a.EchoReply, b.EchoReply)
    74  	m.dstUnreachable.Init(a.DstUnreachable, b.DstUnreachable)
    75  	m.packetTooBig.Init(a.PacketTooBig, b.PacketTooBig)
    76  	m.timeExceeded.Init(a.TimeExceeded, b.TimeExceeded)
    77  	m.paramProblem.Init(a.ParamProblem, b.ParamProblem)
    78  	m.routerSolicit.Init(a.RouterSolicit, b.RouterSolicit)
    79  	m.routerAdvert.Init(a.RouterAdvert, b.RouterAdvert)
    80  	m.neighborSolicit.Init(a.NeighborSolicit, b.NeighborSolicit)
    81  	m.neighborAdvert.Init(a.NeighborAdvert, b.NeighborAdvert)
    82  	m.redirectMsg.Init(a.RedirectMsg, b.RedirectMsg)
    83  	m.multicastListenerQuery.Init(a.MulticastListenerQuery, b.MulticastListenerQuery)
    84  	m.multicastListenerReport.Init(a.MulticastListenerReport, b.MulticastListenerReport)
    85  	m.multicastListenerDone.Init(a.MulticastListenerDone, b.MulticastListenerDone)
    86  }
    87  
    88  // LINT.ThenChange(../../tcpip.go:ICMPv6PacketStats)
    89  
    90  // LINT.IfChange(multiCounterICMPv6SentPacketStats)
    91  
    92  type multiCounterICMPv6SentPacketStats struct {
    93  	multiCounterICMPv6PacketStats
    94  	dropped     tcpip.MultiCounterStat
    95  	rateLimited tcpip.MultiCounterStat
    96  }
    97  
    98  func (m *multiCounterICMPv6SentPacketStats) init(a, b *tcpip.ICMPv6SentPacketStats) {
    99  	m.multiCounterICMPv6PacketStats.init(&a.ICMPv6PacketStats, &b.ICMPv6PacketStats)
   100  	m.dropped.Init(a.Dropped, b.Dropped)
   101  	m.rateLimited.Init(a.RateLimited, b.RateLimited)
   102  }
   103  
   104  // LINT.ThenChange(../../tcpip.go:ICMPv6SentPacketStats)
   105  
   106  // LINT.IfChange(multiCounterICMPv6ReceivedPacketStats)
   107  
   108  type multiCounterICMPv6ReceivedPacketStats struct {
   109  	multiCounterICMPv6PacketStats
   110  	unrecognized                   tcpip.MultiCounterStat
   111  	invalid                        tcpip.MultiCounterStat
   112  	routerOnlyPacketsDroppedByHost tcpip.MultiCounterStat
   113  }
   114  
   115  func (m *multiCounterICMPv6ReceivedPacketStats) init(a, b *tcpip.ICMPv6ReceivedPacketStats) {
   116  	m.multiCounterICMPv6PacketStats.init(&a.ICMPv6PacketStats, &b.ICMPv6PacketStats)
   117  	m.unrecognized.Init(a.Unrecognized, b.Unrecognized)
   118  	m.invalid.Init(a.Invalid, b.Invalid)
   119  	m.routerOnlyPacketsDroppedByHost.Init(a.RouterOnlyPacketsDroppedByHost, b.RouterOnlyPacketsDroppedByHost)
   120  }
   121  
   122  // LINT.ThenChange(../../tcpip.go:ICMPv6ReceivedPacketStats)
   123  
   124  // LINT.IfChange(multiCounterICMPv6Stats)
   125  
   126  type multiCounterICMPv6Stats struct {
   127  	packetsSent     multiCounterICMPv6SentPacketStats
   128  	packetsReceived multiCounterICMPv6ReceivedPacketStats
   129  }
   130  
   131  func (m *multiCounterICMPv6Stats) init(a, b *tcpip.ICMPv6Stats) {
   132  	m.packetsSent.init(&a.PacketsSent, &b.PacketsSent)
   133  	m.packetsReceived.init(&a.PacketsReceived, &b.PacketsReceived)
   134  }
   135  
   136  // LINT.ThenChange(../../tcpip.go:ICMPv6Stats)