545 lines
14 KiB
Go
545 lines
14 KiB
Go
// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
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package resource
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import (
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"context"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"gopkg.in/yaml.v3"
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"io"
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"net/url"
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"regexp"
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_ "strconv"
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"strings"
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"gitea.rosskeen.house/rosskeen.house/machine"
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"decl/internal/codec"
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"decl/internal/data"
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"decl/internal/folio"
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)
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const (
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NetworkRouteTypeName TypeName = "route"
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)
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func init() {
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folio.DocumentRegistry.ResourceTypes.Register([]string{"route"}, func(u *url.URL) data.Resource {
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n := NewNetworkRoute()
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return n
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})
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}
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/*
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ROUTE := NODE_SPEC [ INFO_SPEC ]
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NODE_SPEC := [ TYPE ] PREFIX [ tos TOS ]
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[ table TABLE_ID ] [ proto RTPROTO ]
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[ scope SCOPE ] [ metric METRIC ]
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[ ttl-propagate { enabled | disabled } ]
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INFO_SPEC := { NH | nhid ID } OPTIONS FLAGS [ nexthop NH ]...
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NH := [ encap ENCAPTYPE ENCAPHDR ] [ via [ FAMILY ] ADDRESS ]
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[ dev STRING ] [ weight NUMBER ] NHFLAGS
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FAMILY := [ inet | inet6 | mpls | bridge | link ]
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OPTIONS := FLAGS [ mtu NUMBER ] [ advmss NUMBER ] [ as [ to ] ADDRESS ]
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[ rtt TIME ] [ rttvar TIME ] [ reordering NUMBER ]
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[ window NUMBER ] [ cwnd NUMBER ] [ initcwnd NUMBER ]
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[ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]
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[ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]
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[ features FEATURES ] [ quickack BOOL ] [ congctl NAME ]
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[ pref PREF ] [ expires TIME ] [ fastopen_no_cookie BOOL ]
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NHFLAGS := [ onlink | pervasive ]
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PREF := [ low | medium | high ]
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TIME := NUMBER[s|ms]
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BOOL := [1|0]
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FEATURES := ecn
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ENCAPTYPE := [ mpls | ip | ip6 | seg6 | seg6local | rpl | ioam6 ]
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ENCAPHDR := [ MPLSLABEL | SEG6HDR | SEG6LOCAL | IOAM6HDR ]
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SEG6HDR := [ mode SEGMODE ] segs ADDR1,ADDRi,ADDRn [hmac HMACKEYID] [cleanup]
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SEGMODE := [ encap | inline ]
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SEG6LOCAL := action ACTION [ OPTIONS ] [ count ]
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ACTION := { End | End.X | End.T | End.DX2 | End.DX6 | End.DX4 |
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End.DT6 | End.DT4 | End.DT46 | End.B6 | End.B6.Encaps |
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End.BM | End.S | End.AS | End.AM | End.BPF }
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OPTIONS := OPTION [ OPTIONS ]
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OPTION := { srh SEG6HDR | nh4 ADDR | nh6 ADDR | iif DEV | oif DEV |
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table TABLEID | vrftable TABLEID | endpoint PROGNAME }
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IOAM6HDR := trace prealloc type IOAM6_TRACE_TYPE ns IOAM6_NAMESPACE size IOAM6_TRACE_SIZE
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ROUTE_GET_FLAGS := [ fibmatch ]
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*/
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type NetworkRouteType string
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const (
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NetworkRouteTypeUnicast = "unicast"
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NetworkRouteTypeLocal = "local"
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NetworkRouteTypeBroadcast = "broadcast"
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NetworkRouteTypeMulticast = "multicast"
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NetworkRouteTypeThrow = "throw"
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NetworkRouteTypeUnreachable = "unreachable"
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NetworkRouteTypeProhibit = "prohibit"
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NetworkRouteTypeBlackhole = "blackhole"
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NetworkRouteTypeNat = "nat"
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)
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type NetworkRouteTableId string
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const (
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NetworkRouteTableLocal = "local"
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NetworkRouteTableMain = "main"
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NetworkRouteTableDefault = "default"
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NetworkRouteTableAll = "all"
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)
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var NetworkRouteNumber = regexp.MustCompile(`^[0-9]+$`)
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type NetworkRouteScope string
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const (
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NetworkRouteScopeHost = "host"
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NetworkRouteScopeLink = "link"
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NetworkRouteScopeGlobal = "global"
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)
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type NetworkRouteProto string
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const (
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NetworkRouteProtoKernel = "kernel"
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NetworkRouteProtoBoot = "boot"
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NetworkRouteProtoStatic = "static"
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)
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// Manage the state of network routes
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type NetworkRoute struct {
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*Common `json:",inline" yaml:",inline"`
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stater machine.Stater `json:"-" yaml:"-"`
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Id string
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To string `json:"to" yaml:"to"`
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Interface string `json:"interface" yaml:"interface"`
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Gateway string `json:"gateway" yaml:"gateway"`
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Metric uint `json:"metric" yaml:"metric"`
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Rtid NetworkRouteTableId `json:"rtid" yaml:"rtid"`
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RouteType NetworkRouteType `json:"routetype" yaml:"routetype"`
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Scope NetworkRouteScope `json:"scope" yaml:"scope"`
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Proto NetworkRouteProto `json:"proto" yaml:"proto"`
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CreateCommand *Command `yaml:"-" json:"-"`
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ReadCommand *Command `yaml:"-" json:"-"`
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UpdateCommand *Command `yaml:"-" json:"-"`
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DeleteCommand *Command `yaml:"-" json:"-"`
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config data.ConfigurationValueGetter
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Resources data.ResourceMapper `json:"-" yaml:"-"`
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}
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func NewNetworkRoute() *NetworkRoute {
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n := &NetworkRoute{Rtid: NetworkRouteTableMain, Common: &Common{ resourceType: NetworkRouteTypeName } }
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n.CreateCommand, n.ReadCommand, n.UpdateCommand, n.DeleteCommand = n.NewCRUD()
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return n
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}
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func (n *NetworkRoute) SetResourceMapper(resources data.ResourceMapper) {
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n.Resources = resources
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}
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func (n *NetworkRoute) Clone() data.Resource {
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newn := &NetworkRoute {
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Common: n.Common,
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Id: n.Id,
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To: n.To,
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Interface: n.Interface,
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Gateway: n.Gateway,
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Metric: n.Metric,
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Rtid: n.Rtid,
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RouteType: n.RouteType,
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Scope: n.Scope,
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Proto: n.Proto,
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}
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newn.CreateCommand, newn.ReadCommand, newn.UpdateCommand, newn.DeleteCommand = n.NewCRUD()
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return newn
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}
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func (n *NetworkRoute) StateMachine() machine.Stater {
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if n.stater == nil {
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n.stater = StorageMachine(n)
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}
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return n.stater
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}
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func (n *NetworkRoute) Notify(m *machine.EventMessage) {
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ctx := context.Background()
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switch m.On {
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case machine.ENTERSTATEEVENT:
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switch m.Dest {
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case "start_create":
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if e := n.Create(ctx); e == nil {
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if triggerErr := n.stater.Trigger("created"); triggerErr == nil {
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return
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}
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}
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n.Common.State = "absent"
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case "present":
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n.Common.State = "present"
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}
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case machine.EXITSTATEEVENT:
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}
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}
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func (n *NetworkRoute) Create(ctx context.Context) error {
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_, err := n.CreateCommand.Execute(n)
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if n.CreateCommand.Extractor != nil {
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if err != nil {
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return n.CreateCommand.Extractor([]byte(err.Error()), n)
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}
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}
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return nil
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}
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func (n *NetworkRoute) Update(ctx context.Context) error {
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return n.Create(ctx)
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}
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func (n *NetworkRoute) Delete(ctx context.Context) error {
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return nil
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}
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func (n *NetworkRoute) URI() string {
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return fmt.Sprintf("route://%s", n.Id)
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}
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func (n *NetworkRoute) SetURI(uri string) error {
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return nil
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}
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func (n *NetworkRoute) UseConfig(config data.ConfigurationValueGetter) {
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n.config = config
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}
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func (n *NetworkRoute) Validate() error {
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return fmt.Errorf("failed")
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}
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func (n *NetworkRoute) Apply() error {
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switch n.Common.State {
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case "absent":
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case "present":
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}
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return nil
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}
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func (n *NetworkRoute) Load(docData []byte, f codec.Format) (err error) {
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err = f.StringDecoder(string(docData)).Decode(n)
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return
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}
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func (n *NetworkRoute) LoadReader(r io.ReadCloser, f codec.Format) (err error) {
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err = f.Decoder(r).Decode(n)
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return
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}
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func (n *NetworkRoute) LoadString(docData string, f codec.Format) (err error) {
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err = f.StringDecoder(docData).Decode(n)
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return
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}
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func (n *NetworkRoute) LoadDecl(yamlResourceDeclaration string) error {
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return n.LoadString(yamlResourceDeclaration, codec.FormatYaml)
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}
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func (n *NetworkRoute) ResolveId(ctx context.Context) string {
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uri := fmt.Sprintf("%s?gateway=%s&interface=%s&rtid=%s&metric=%d&type=%s&scope=%s",
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n.To, n.Gateway, n.Interface, n.Rtid, n.Metric, n.RouteType, n.Scope)
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fmt.Printf("%#v\n", uri)
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n.Id = hex.EncodeToString([]byte(uri))
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return n.Id
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}
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func (n *NetworkRoute) Read(ctx context.Context) ([]byte, error) {
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out, err := n.ReadCommand.Execute(n)
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if err != nil {
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return nil, err
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}
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exErr := n.ReadCommand.Extractor(out, n)
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if exErr != nil {
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return nil, exErr
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}
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/*
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var cmdArgs []string = make([]string, 17)
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cmdArgs[0] = "route"
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cmdArgs[1] = "show"
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if len(n.To) > 0 {
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cmdArgs = append(cmdArgs, "to", n.To)
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}
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if len(n.Rtid) > 0 {
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cmdArgs = append(cmdArgs, "table", string(n.Rtid))
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}
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if len(n.Gateway) > 0 {
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cmdArgs = append(cmdArgs, "via", n.Gateway)
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}
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if len(n.Proto) > 0 {
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cmdArgs = append(cmdArgs, "protocol", string(n.Proto))
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}
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if len(n.Scope) > 0 {
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cmdArgs = append(cmdArgs, "scope", string(n.Scope))
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}
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if len(n.RouteType) > 0 {
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cmdArgs = append(cmdArgs, "type", string(n.RouteType))
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}
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if len(n.Interface) > 0 {
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cmdArgs = append(cmdArgs, "dev", n.Interface)
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}
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readRouteTable, errRouteList := exec.Command("ip", cmdArgs...).Output()
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if errRouteList != nil {
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return nil, errRouteList
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}
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routes := strings.Split(string(readRouteTable), "\n")
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if len(routes) == 1 {
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fields := strings.Split(routes[0], " ")
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numberOfFields := len(fields)
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if numberOfFields > 1 {
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n.To = fields[0]
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for i := 1; i < numberOfFields; i += 2 {
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n.SetField(fields[i], fields[i+1])
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}
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}
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}
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*/
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n.ResolveId(ctx)
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return yaml.Marshal(n)
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}
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func (n *NetworkRoute) SetField(name string, value string) {
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switch name {
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case "to":
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n.To = value
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case "table":
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n.Rtid = NetworkRouteTableId(value)
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case "via":
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n.Gateway = value
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case "protocol":
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n.Proto = NetworkRouteProto(value)
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case "scope":
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n.Scope = NetworkRouteScope(value)
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case "type":
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n.RouteType = NetworkRouteType(value)
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case "dev":
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n.Interface = value
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}
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}
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func (n *NetworkRoute) GetField(name string) string {
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switch name {
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case "to":
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return n.To
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case "table":
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return string(n.Rtid)
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case "via":
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return n.Gateway
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case "protocol":
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return string(n.Proto)
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case "scope":
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return string(n.Scope)
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case "type":
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return string(n.RouteType)
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case "dev":
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return n.Interface
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}
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return ""
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}
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func (n *NetworkRoute) Type() string { return "route" }
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func (n *NetworkRouteType) UnmarshalValue(value string) error {
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switch value {
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case string(NetworkRouteTypeUnicast), string(NetworkRouteTypeLocal), string(NetworkRouteTypeBroadcast), string(NetworkRouteTypeMulticast), string(NetworkRouteTypeThrow), string(NetworkRouteTypeUnreachable), string(NetworkRouteTypeProhibit), string(NetworkRouteTypeBlackhole), string(NetworkRouteTypeNat):
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*n = NetworkRouteType(value)
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return nil
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default:
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return errors.New("invalid NetworkRouteType value")
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}
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}
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func (n *NetworkRouteType) UnmarshalJSON(data []byte) error {
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var s string
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if unmarshalRouteTypeErr := json.Unmarshal(data, &s); unmarshalRouteTypeErr != nil {
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return unmarshalRouteTypeErr
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteType) UnmarshalYAML(value *yaml.Node) error {
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var s string
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if err := value.Decode(&s); err != nil {
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return err
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteTableId) UnmarshalValue(value string) error {
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switch value {
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case NetworkRouteNumber.FindString(value):
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fallthrough
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case string(NetworkRouteTableLocal), string(NetworkRouteTableMain), string(NetworkRouteTableDefault), string(NetworkRouteTableAll):
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*n = NetworkRouteTableId(value)
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return nil
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default:
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return errors.New("invalid NetworkRouteTableId value")
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}
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}
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func (n *NetworkRouteTableId) UnmarshalJSON(data []byte) error {
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var s string
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if unmarshalRouteTypeErr := json.Unmarshal(data, &s); unmarshalRouteTypeErr != nil {
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return unmarshalRouteTypeErr
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteTableId) UnmarshalYAML(value *yaml.Node) error {
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var s string
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if err := value.Decode(&s); err != nil {
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return err
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteScope) UnmarshalValue(value string) error {
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switch value {
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case NetworkRouteNumber.FindString(value):
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fallthrough
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case string(NetworkRouteScopeHost), string(NetworkRouteScopeLink), string(NetworkRouteScopeGlobal):
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*n = NetworkRouteScope(value)
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return nil
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default:
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return errors.New("invalid NetworkRouteScope value")
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}
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}
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func (n *NetworkRouteScope) UnmarshalJSON(data []byte) error {
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var s string
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if unmarshalRouteTypeErr := json.Unmarshal(data, &s); unmarshalRouteTypeErr != nil {
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return unmarshalRouteTypeErr
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteScope) UnmarshalYAML(value *yaml.Node) error {
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var s string
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if err := value.Decode(&s); err != nil {
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return err
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteProto) UnmarshalValue(value string) error {
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switch value {
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case NetworkRouteNumber.FindString(value):
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fallthrough
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case string(NetworkRouteProtoKernel), string(NetworkRouteProtoBoot), string(NetworkRouteProtoStatic):
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*n = NetworkRouteProto(value)
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return nil
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default:
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return errors.New("invalid NetworkRouteProto value")
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}
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}
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func (n *NetworkRouteProto) UnmarshalJSON(data []byte) error {
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var s string
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if unmarshalRouteTypeErr := json.Unmarshal(data, &s); unmarshalRouteTypeErr != nil {
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return unmarshalRouteTypeErr
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRouteProto) UnmarshalYAML(value *yaml.Node) error {
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var s string
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if err := value.Decode(&s); err != nil {
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return err
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}
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return n.UnmarshalValue(s)
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}
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func (n *NetworkRoute) UnmarshalJSON(data []byte) error {
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if err := json.Unmarshal(data, n); err != nil {
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return err
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}
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return nil
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}
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func (n *NetworkRoute) NewCRUD() (create *Command, read *Command, update *Command, del *Command) {
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return NewNetworkRouteCreateCommand(), NewNetworkRouteReadCommand(), NewNetworkRouteUpdateCommand(), NewNetworkRouteDeleteCommand()
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}
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func NewNetworkRouteCreateCommand() *Command {
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c := NewCommand()
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c.Path = "ip"
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c.Args = []CommandArg{
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CommandArg("route"),
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CommandArg("add"),
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CommandArg("{{ if .To }}to {{ .To }}{{ end }}"),
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CommandArg("{{ if .Rtid }}table {{ .Rtid }}{{ end }}"),
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CommandArg("{{ if .Gateway }}via {{ .Gateway }}{{ end }}"),
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CommandArg("{{ if .Proto }}protocol {{ .Proto }}{{ end }}"),
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CommandArg("{{ if .Scope }}scope {{ .Scope }}{{ end }}"),
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CommandArg("{{ if .RouteType }}type {{ .RouteType }}{{ end }}"),
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CommandArg("{{ if .Interface }}dev {{ .Interface }}{{ end }}"),
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CommandArg("{{ if .Metric }}metric {{ .Metric }}{{ end }}"),
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}
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return c
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}
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func NewNetworkRouteReadCommand() *Command {
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c := NewCommand()
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c.Path = "ip"
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c.Args = []CommandArg{
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CommandArg("route"),
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CommandArg("show"),
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CommandArg("{{ if .To }}to {{ .To }}{{ end }}"),
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CommandArg("{{ if .Rtid }}table {{ .Rtid }}{{ end }}"),
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CommandArg("{{ if .Gateway }}via {{ .Gateway }}{{ end }}"),
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CommandArg("{{ if .Proto }}protocol {{ .Proto }}{{ end }}"),
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CommandArg("{{ if .Scope }}scope {{ .Scope }}{{ end }}"),
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CommandArg("{{ if .RouteType }}type {{ .RouteType }}{{ end }}"),
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CommandArg("{{ if .Interface }}dev {{ .Interface }}{{ end }}"),
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}
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c.Extractor = func(out []byte, target any) error {
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n := target.(*NetworkRoute)
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routes := strings.Split(string(out), "\n")
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if len(routes) == 1 {
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fields := strings.Split(routes[0], " ")
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numberOfFields := len(fields)
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if numberOfFields > 1 {
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n.To = fields[0]
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for i := 1; i < numberOfFields; i += 2 {
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|
n.SetField(fields[i], fields[i + 1])
|
|
}
|
|
}
|
|
n.Common.State = "present"
|
|
} else {
|
|
n.Common.State = "absent"
|
|
}
|
|
return nil
|
|
}
|
|
return c
|
|
}
|
|
|
|
func NewNetworkRouteUpdateCommand() *Command {
|
|
c := NewCommand()
|
|
c.Path = "ip"
|
|
c.Args = []CommandArg{
|
|
CommandArg("del"),
|
|
CommandArg("{{ .Name }}"),
|
|
}
|
|
return c
|
|
}
|
|
|
|
func NewNetworkRouteDeleteCommand() *Command {
|
|
return nil
|
|
}
|