Add project
parent
b250277bab
commit
5d40cde0c8
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package main
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import (
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"fmt"
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)
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func main() {
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fmt.Println("Hello World!")
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}
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package main
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import (
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"github.com/vishvananda/netlink"
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)
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type FilterOptions struct {
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Table int
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Protocol int
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}
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func CheckFilter(options FilterOptions, route netlink.Route) bool {
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if (options.Table != -1 && options.Table != route.Table) ||
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(options.Protocol != -1 && options.Protocol != route.Protocol) {
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return false
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}
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return true
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}
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package main
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import (
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"log"
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"os"
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)
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type Log struct {
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Info log.Logger
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Warn log.Logger
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Error log.Logger
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}
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var logger Log = Log{
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Info: *log.New(os.Stdout, "[INFO]\t", log.Ltime|log.Lshortfile),
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Warn: *log.New(os.Stderr, "[WARN]\t", log.Ltime|log.Lshortfile),
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Error: *log.New(os.Stderr, "[ERROR]\t", log.Ltime|log.Lshortfile),
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}
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@ -0,0 +1,214 @@
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package main
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import (
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"net"
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"os"
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envChecks "git.ruekov.eu/ruakij/routingtabletowg/lib/environmentchecks"
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ip2Map "git.ruekov.eu/ruakij/routingtabletowg/lib/iproute2mapping"
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"git.ruekov.eu/ruakij/routingtabletowg/lib/wgchecks"
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"github.com/vishvananda/netlink"
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"golang.org/x/sys/unix"
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"golang.zx2c4.com/wireguard/wgctrl"
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"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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)
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var envRequired = []string{
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"INTERFACE",
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}
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var envDefaults = map[string]string{
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"INTERFACE": "wg0",
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//"MANAGE_ALL": "true",
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"FILTER_PROTOCOL": "-1",
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"FILTER_TABLE": "-1",
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}
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func main() {
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// Environment-vars
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err := envChecks.HandleRequired(envRequired)
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if(err != nil){
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logger.Error.Fatal(err)
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}
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envChecks.HandleDefaults(envDefaults)
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iface := os.Getenv("INTERFACE")
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//MANAGE_ALL = os.Getenv("MANAGE_ALL")
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// Parse filter-env-vars
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filterProtocolStr := os.Getenv("FILTER_PROTOCOL")
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filterProtocol, err := ip2Map.TryGetId(ip2Map.PROTOCOL, filterProtocolStr)
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if err != nil {
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logger.Error.Fatalf("Couldn't read FILTER_PROTOCOL '%s': %s", filterProtocolStr, err)
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}
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filterTableStr := os.Getenv("FILTER_TABLE")
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filterTable, err := ip2Map.TryGetId(ip2Map.TABLE, filterTableStr)
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if err != nil {
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logger.Error.Fatalf("Couldn't read FILTER_TABLE '%s': %s", filterTableStr, err)
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}
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// Create filter
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filterOptions := FilterOptions{
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Table: filterTable,
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Protocol: filterProtocol,
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}
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// Get Link-Device
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link, err := netlink.LinkByName(iface)
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if err != nil {
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logger.Error.Fatalf("Couldn't get interface '%s': %s", iface, err)
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}
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// Test getting wg-client
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client, err := wgctrl.New()
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if err != nil {
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logger.Error.Fatalf("Couldn't create wgctl-client: %s", err)
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}
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// Test getting wg-device
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_, err = client.Device(iface)
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if err != nil {
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logger.Error.Fatalf("Couldn't get wg-interface '%s': %s", iface, err)
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}
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// Subscribe to route-change events
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routeSubChan, routeSubDoneChan := make(chan netlink.RouteUpdate), make(chan struct{})
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netlink.RouteSubscribe(routeSubChan, routeSubDoneChan)
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go handleRouteEvents(routeSubChan, filterOptions, iface)
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//# Initial Route-setup
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// Get routing-table entries from device
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routeList, err := netlink.RouteList(link, netlink.FAMILY_ALL)
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if err != nil {
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logger.Error.Fatalf("Couldn't get route-entries: %s", err)
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}
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logger.Info.Printf("Initially setting all current routes")
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for _, route := range routeList {
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// Ignore routes with empty gateway
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if(route.Gw == nil){
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continue
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}
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// Send current routes to handler
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routeSubChan <- netlink.RouteUpdate{
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Type: unix.RTM_NEWROUTE,
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Route: route,
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}
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}
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select {}
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}
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var routeUpdateTypeMapFromId = map[uint16]string{
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unix.RTM_NEWROUTE: "+",
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unix.RTM_DELROUTE: "-",
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}
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// TODO: Add proxy to apply filter in channels rather than.. this mess
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func handleRouteEvents(routeSubChan <-chan netlink.RouteUpdate, filterOptions FilterOptions, iface string) {
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// Create wg-client
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client, err := wgctrl.New()
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if err != nil {
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logger.Error.Fatalf("Couldn't create wgctl-client: %s", err)
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}
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for {
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// Receive Route-Updates
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routeUpdate := <-routeSubChan
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route := routeUpdate.Route
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// Check filter
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if(!CheckFilter(filterOptions, routeUpdate.Route)){
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continue
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}
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// Special case for default-route
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if route.Dst == nil{
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if route.Gw.To4() != nil { // IPv4
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route.Dst = &net.IPNet{
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IP: net.IPv4zero,
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Mask: net.CIDRMask(0, 32),
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}
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} else { // IPv6
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route.Dst = &net.IPNet{
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IP: net.IPv6zero,
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Mask: net.CIDRMask(0, 128),
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}
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}
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}
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logger.Info.Printf("Route-Update: [%s] %s via %s", routeUpdateTypeMapFromId[routeUpdate.Type], route.Dst, route.Gw)
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// Get wgDevice
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wgDevice, err := client.Device(iface)
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if err != nil {
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logger.Error.Fatalf("Couldn't get wg-interface '%s' while running: %s", iface, err)
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}
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// Empty config for filling in switch
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var wgConfig wgtypes.Config
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switch routeUpdate.Type{
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case unix.RTM_NEWROUTE:
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// Check if gateway is set
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if route.Gw == nil{
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logger.Warn.Printf("Gateway unset, ignoring")
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continue
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}
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// Check if other peer already has exact same dst
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if peer, err := wgChecks.PeerByIPNet(wgDevice.Peers, *route.Dst); err == nil {
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logger.Warn.Printf("dst-IPNet already set for Peer '%s', ignoring", peer.PublicKey)
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continue
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}
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// Get peer containing gateway-addr
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peer, err := wgChecks.PeerByIP(wgDevice.Peers, route.Gw)
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if(err != nil){
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logger.Warn.Printf("No peer found containing gw-IP '%s', ignoring", route.Gw)
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continue
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}
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// Set peerConfig, this will override set values for that peer
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wgConfig.Peers = []wgtypes.PeerConfig{
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{
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PublicKey: peer.PublicKey,
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AllowedIPs: append(peer.AllowedIPs, *route.Dst),
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},
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}
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case unix.RTM_DELROUTE:
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// Get peer containing dst-NetIP
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peerIndex, ipNetIndex, err := wgChecks.PeerIndexByIPNet(wgDevice.Peers, *route.Dst)
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if(err != nil){
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logger.Warn.Printf("No peer found having dst-IPNet '%s', ignoring", route.Dst)
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continue
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}
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peer := wgDevice.Peers[peerIndex]
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// Delete dstNet from allowedIPs
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peer.AllowedIPs[ipNetIndex] = peer.AllowedIPs[len(peer.AllowedIPs)-1]
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peer.AllowedIPs = peer.AllowedIPs[:len(peer.AllowedIPs)-1]
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// Set peerConfig, this will override set values for that peer
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wgConfig.Peers = []wgtypes.PeerConfig{
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{
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PublicKey: peer.PublicKey,
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UpdateOnly: true,
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ReplaceAllowedIPs: true,
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AllowedIPs: peer.AllowedIPs,
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},
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}
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}
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err = client.ConfigureDevice(iface, wgConfig)
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if(err != nil){
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logger.Error.Fatalf("Error configuring wg-device '%s': %s", iface, err)
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}
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}
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}
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@ -1,3 +1,23 @@
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module routingtabletowg
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module git.ruekov.eu/ruakij/routingtabletowg
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go 1.19
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go 1.19
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require (
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github.com/jsimonetti/rtnetlink v1.2.3
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github.com/vishvananda/netlink v1.1.0
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golang.org/x/sys v0.1.0
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golang.zx2c4.com/wireguard/wgctrl v0.0.0-20221104135756-97bc4ad4a1cb
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)
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require (
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github.com/google/go-cmp v0.5.9 // indirect
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github.com/josharian/native v1.0.0 // indirect
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github.com/mdlayher/genetlink v1.2.0 // indirect
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github.com/mdlayher/netlink v1.6.2 // indirect
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github.com/mdlayher/socket v0.2.3 // indirect
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github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect
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golang.org/x/crypto v0.1.0 // indirect
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golang.org/x/net v0.1.0 // indirect
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golang.org/x/sync v0.1.0 // indirect
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golang.zx2c4.com/wireguard v0.0.0-20220920152132-bb719d3a6e2c // indirect
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)
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@ -0,0 +1,70 @@
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github.com/cilium/ebpf v0.9.3/go.mod h1:w27N4UjpaQ9X/DGrSugxUG+H+NhgntDuPb5lCzxCn8A=
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github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
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github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09mUdL/ijj8og=
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github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
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github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
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github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
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github.com/josharian/native v1.0.0 h1:Ts/E8zCSEsG17dUqv7joXJFybuMLjQfWE04tsBODTxk=
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github.com/josharian/native v1.0.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
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github.com/jsimonetti/rtnetlink v1.2.3 h1:JntWIxmljlDswWwebzpZCz2Aa3t2kThJ79f658zgsPU=
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github.com/jsimonetti/rtnetlink v1.2.3/go.mod h1:5r5Rj9WEseVOUzDk5RN9v0gVXbkBz9XtENwhC6PwvtU=
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github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
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|
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
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|
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
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|
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
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|
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
|
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|
github.com/mdlayher/genetlink v1.2.0 h1:4yrIkRV5Wfk1WfpWTcoOlGmsWgQj3OtQN9ZsbrE+XtU=
|
||||||
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github.com/mdlayher/genetlink v1.2.0/go.mod h1:ra5LDov2KrUCZJiAtEvXXZBxGMInICMXIwshlJ+qRxQ=
|
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|
github.com/mdlayher/netlink v1.6.0/go.mod h1:0o3PlBmGst1xve7wQ7j/hwpNaFaH4qCRyWCdcZk8/vA=
|
||||||
|
github.com/mdlayher/netlink v1.6.2 h1:D2zGSkvYsJ6NreeED3JiVTu1lj2sIYATqSaZlhPzUgQ=
|
||||||
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github.com/mdlayher/netlink v1.6.2/go.mod h1:O1HXX2sIWSMJ3Qn1BYZk1yZM+7iMki/uYGGiwGyq/iU=
|
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|
github.com/mdlayher/socket v0.1.1/go.mod h1:mYV5YIZAfHh4dzDVzI8x8tWLWCliuX8Mon5Awbj+qDs=
|
||||||
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github.com/mdlayher/socket v0.2.3 h1:XZA2X2TjdOwNoNPVPclRCURoX/hokBY8nkTmRZFEheM=
|
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github.com/mdlayher/socket v0.2.3/go.mod h1:bz12/FozYNH/VbvC3q7TRIK/Y6dH1kCKsXaUeXi/FmY=
|
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github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721 h1:RlZweED6sbSArvlE924+mUcZuXKLBHA35U7LN621Bws=
|
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|
github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
|
||||||
|
github.com/vishvananda/netlink v1.1.0 h1:1iyaYNBLmP6L0220aDnYQpo1QEV4t4hJ+xEEhhJH8j0=
|
||||||
|
github.com/vishvananda/netlink v1.1.0/go.mod h1:cTgwzPIzzgDAYoQrMm0EdrjRUBkTqKYppBueQtXaqoE=
|
||||||
|
github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df h1:OviZH7qLw/7ZovXvuNyL3XQl8UFofeikI1NW1Gypu7k=
|
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|
github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df/go.mod h1:JP3t17pCcGlemwknint6hfoeCVQrEMVwxRLRjXpq+BU=
|
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|
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||||
|
golang.org/x/crypto v0.1.0 h1:MDRAIl0xIo9Io2xV565hzXHw3zVseKrJKodhohM5CjU=
|
||||||
|
golang.org/x/crypto v0.1.0/go.mod h1:RecgLatLF4+eUMCP1PoPZQb+cVrJcOPbHkTkbkB9sbw=
|
||||||
|
golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||||
|
golang.org/x/net v0.0.0-20210928044308-7d9f5e0b762b/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
|
||||||
|
golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
|
||||||
|
golang.org/x/net v0.0.0-20220923203811-8be639271d50/go.mod h1:YDH+HFinaLZZlnHAfSS6ZXJJ9M9t4Dl22yv3iI2vPwk=
|
||||||
|
golang.org/x/net v0.1.0 h1:hZ/3BUoy5aId7sCpA/Tc5lt8DkFgdVS2onTpJsZ/fl0=
|
||||||
|
golang.org/x/net v0.1.0/go.mod h1:Cx3nUiGt4eDBEyega/BKRp+/AlGL8hYe7U9odMt2Cco=
|
||||||
|
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||||
|
golang.org/x/sync v0.0.0-20220923202941-7f9b1623fab7/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||||
|
golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
|
||||||
|
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||||
|
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||||
|
golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||||
|
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.0.0-20220728004956-3c1f35247d10/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
|
||||||
|
golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||||
|
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||||
|
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
|
||||||
|
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||||
|
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||||
|
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
|
||||||
|
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||||
|
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||||
|
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||||
|
golang.zx2c4.com/wireguard v0.0.0-20220920152132-bb719d3a6e2c h1:Okh6a1xpnJslG9Mn84pId1Mn+Q8cvpo4HCeeFWHo0cA=
|
||||||
|
golang.zx2c4.com/wireguard v0.0.0-20220920152132-bb719d3a6e2c/go.mod h1:enML0deDxY1ux+B6ANGiwtg0yAJi1rctkTpcHNAVPyg=
|
||||||
|
golang.zx2c4.com/wireguard/wgctrl v0.0.0-20221104135756-97bc4ad4a1cb h1:9aqVcYEDHmSNb0uOWukxV5lHV09WqiSiCuhEgWNETLY=
|
||||||
|
golang.zx2c4.com/wireguard/wgctrl v0.0.0-20221104135756-97bc4ad4a1cb/go.mod h1:mQqgjkW8GQQcJQsbBvK890TKqUK1DfKWkuBGbOkuMHQ=
|
||||||
|
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||||
|
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
|
||||||
@ -0,0 +1,27 @@
|
|||||||
|
package environmentchecks
|
||||||
|
|
||||||
|
import (
|
||||||
|
"os"
|
||||||
|
"fmt"
|
||||||
|
)
|
||||||
|
|
||||||
|
func HandleDefaults(envDefaults map[string]string){
|
||||||
|
for env, defaultValue := range envDefaults{
|
||||||
|
// Check if env is set
|
||||||
|
_, isSet := os.LookupEnv(env)
|
||||||
|
if(!isSet){
|
||||||
|
os.Setenv(env, defaultValue)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func HandleRequired(envRequired []string) error {
|
||||||
|
for _, env := range envRequired{
|
||||||
|
// Check if env is set
|
||||||
|
_, isSet := os.LookupEnv(env)
|
||||||
|
if(!isSet){
|
||||||
|
return fmt.Errorf("env '%s' required, but not set", env)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
@ -0,0 +1,102 @@
|
|||||||
|
package iproute2mapping
|
||||||
|
|
||||||
|
import (
|
||||||
|
"os"
|
||||||
|
"bufio"
|
||||||
|
"strings"
|
||||||
|
"strconv"
|
||||||
|
"fmt"
|
||||||
|
)
|
||||||
|
|
||||||
|
// Storage for mapping
|
||||||
|
var ByName = make(map[int]map[string]int)
|
||||||
|
var ById = make(map[int]map[int]string)
|
||||||
|
|
||||||
|
// Mapping types
|
||||||
|
const (
|
||||||
|
PROTOCOL = iota
|
||||||
|
TABLE
|
||||||
|
)
|
||||||
|
|
||||||
|
// Paths
|
||||||
|
var filePaths = map[int]string{
|
||||||
|
PROTOCOL: "/etc/iproute2/rt_protos",
|
||||||
|
TABLE: "/etc/iproute2/rt_tables",
|
||||||
|
}
|
||||||
|
|
||||||
|
// Export error-check
|
||||||
|
var Errors []error;
|
||||||
|
|
||||||
|
func init() {
|
||||||
|
var err error
|
||||||
|
for mapType, filePath := range filePaths{
|
||||||
|
ByName[mapType], ById[mapType], err = readFromFile(filePath)
|
||||||
|
if(err != nil){
|
||||||
|
Errors = []error{
|
||||||
|
fmt.Errorf("failed reading iproute2 mapping-file '%s': %s", filePath, err),
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func readFromFile(filePath string) (mapByName map[string]int, mapById map[int]string, err error){
|
||||||
|
file, err := os.Open(filePath)
|
||||||
|
if(err != nil){
|
||||||
|
return nil, nil, err;
|
||||||
|
}
|
||||||
|
defer file.Close()
|
||||||
|
|
||||||
|
scanner := bufio.NewScanner(file)
|
||||||
|
scanner.Split(bufio.ScanLines)
|
||||||
|
|
||||||
|
mapByName = make(map[string]int)
|
||||||
|
mapById = make(map[int]string)
|
||||||
|
|
||||||
|
// Go through file line-by-line
|
||||||
|
for scanner.Scan() {
|
||||||
|
text := scanner.Text()
|
||||||
|
if(strings.HasPrefix(text, "#") || text == ""){
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
|
||||||
|
id, name, err := getMappingFromText(text)
|
||||||
|
if(err != nil){
|
||||||
|
// Only warn as we can continue processing the file
|
||||||
|
Errors = append(Errors,
|
||||||
|
fmt.Errorf("mappig-data invalid '%s': %s", text, err),
|
||||||
|
)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
|
||||||
|
mapByName[name] = id
|
||||||
|
mapById[id] = name
|
||||||
|
}
|
||||||
|
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
func getMappingFromText(text string) (int, string, error) {
|
||||||
|
// Split and read/convert data
|
||||||
|
data := strings.Split(text, "\t")
|
||||||
|
|
||||||
|
id, err := strconv.Atoi(data[0])
|
||||||
|
if(err != nil){
|
||||||
|
return 0, "", err
|
||||||
|
}
|
||||||
|
|
||||||
|
return id, data[1], nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Try getting an id from a name (or a string containing an id) with a specified type
|
||||||
|
func TryGetId(mappingType int, name string) (int, error){
|
||||||
|
// Try to convert name to id
|
||||||
|
id, err := strconv.Atoi(name)
|
||||||
|
if(err != nil){ // name given -> Convert to id
|
||||||
|
var found bool
|
||||||
|
id, found = ByName[mappingType][name]
|
||||||
|
if(!found){
|
||||||
|
return 0, fmt.Errorf("no id found from name")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return id, nil
|
||||||
|
}
|
||||||
@ -0,0 +1,2 @@
|
|||||||
|
package iproute2mapping
|
||||||
|
|
||||||
@ -0,0 +1,25 @@
|
|||||||
|
package netchecks
|
||||||
|
|
||||||
|
import (
|
||||||
|
"fmt"
|
||||||
|
"net"
|
||||||
|
"reflect"
|
||||||
|
)
|
||||||
|
|
||||||
|
func IPNetIndexByIP(list []net.IPNet, ip net.IP) (int, error) {
|
||||||
|
for index, ipNetEntry := range list {
|
||||||
|
if ipNetEntry.Contains(ip) {
|
||||||
|
return index, nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return -1, fmt.Errorf("ip not in ipNet-list")
|
||||||
|
}
|
||||||
|
|
||||||
|
func IPNetIndexByIPNet(list []net.IPNet, ipNet net.IPNet) (int, error) {
|
||||||
|
for index, ipNetEntry := range list {
|
||||||
|
if reflect.DeepEqual(ipNetEntry, ipNet) {
|
||||||
|
return index, nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return -1, fmt.Errorf("ipNet not in ipNet-list")
|
||||||
|
}
|
||||||
@ -0,0 +1,42 @@
|
|||||||
|
package wgChecks
|
||||||
|
|
||||||
|
import (
|
||||||
|
"fmt"
|
||||||
|
"net"
|
||||||
|
|
||||||
|
"git.ruekov.eu/ruakij/routingtabletowg/lib/netchecks"
|
||||||
|
|
||||||
|
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
|
||||||
|
)
|
||||||
|
|
||||||
|
func PeerIndexByIP(peers []wgtypes.Peer, ip net.IP) (int, int, error) {
|
||||||
|
for index, peer := range peers {
|
||||||
|
if ipIndex, err := netchecks.IPNetIndexByIP(peer.AllowedIPs, ip); err == nil {
|
||||||
|
return index, ipIndex, nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return -1, -1, fmt.Errorf("no peer by ip in list")
|
||||||
|
}
|
||||||
|
func PeerByIP(peers []wgtypes.Peer, ip net.IP) (*wgtypes.Peer, error) {
|
||||||
|
index, _, err := PeerIndexByIP(peers, ip)
|
||||||
|
if(err != nil) {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return &peers[index], nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func PeerIndexByIPNet(peers []wgtypes.Peer, ipNet net.IPNet) (int, int, error) {
|
||||||
|
for index, peer := range peers {
|
||||||
|
if ipNetIndex, err := netchecks.IPNetIndexByIPNet(peer.AllowedIPs, ipNet); err == nil {
|
||||||
|
return index, ipNetIndex, nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return -1, -1, fmt.Errorf("no peer by ipNet in list")
|
||||||
|
}
|
||||||
|
func PeerByIPNet(peers []wgtypes.Peer, ipNet net.IPNet) (*wgtypes.Peer, error) {
|
||||||
|
index, _, err := PeerIndexByIPNet(peers, ipNet)
|
||||||
|
if(err != nil) {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return &peers[index], nil
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue