Merge branch 'dev'
This commit is contained in:
commit
80ee221226
238
cmd/app/main.go
238
cmd/app/main.go
@ -7,8 +7,8 @@ import (
|
||||
"time"
|
||||
|
||||
envChecks "git.ruekov.eu/ruakij/routingtabletowg/lib/environmentchecks"
|
||||
"git.ruekov.eu/ruakij/routingtabletowg/lib/wgchecks/netchecks"
|
||||
|
||||
"git.ruekov.eu/ruakij/routingtabletowg/lib/wgchecks/netchecks"
|
||||
|
||||
"github.com/vishvananda/netlink"
|
||||
"golang.zx2c4.com/wireguard/wgctrl"
|
||||
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
|
||||
@ -18,152 +18,152 @@ var envRequired = []string{
|
||||
"INTERFACE",
|
||||
}
|
||||
var envDefaults = map[string]string{
|
||||
"IPV6_FORMAT": "fc12::%02x%02x:%02x%02x/%d",
|
||||
"FILTER_PREFIX": "100.100",
|
||||
"RECHECK_INTERVAL": "5m",
|
||||
"IPV6_FORMAT": "fc12::%02x%02x:%02x%02x/%d",
|
||||
"FILTER_PREFIX": "100.100",
|
||||
"RECHECK_INTERVAL": "5m",
|
||||
}
|
||||
|
||||
func main() {
|
||||
// Environment-vars
|
||||
err := envChecks.HandleRequired(envRequired)
|
||||
if(err != nil){
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
envChecks.HandleDefaults(envDefaults)
|
||||
|
||||
// Get the network interface object
|
||||
// Get the network interface object
|
||||
iface := os.Getenv("INTERFACE")
|
||||
netInterface, err := netlink.LinkByName(iface)
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
netInterface, err := netlink.LinkByName(iface)
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
|
||||
ipv6Format := os.Getenv("IPV6_FORMAT")
|
||||
ipv6TestStr := *convertIPv4ToIPv6(&ipv6Format, &net.IPNet{IP: net.IPv4(1,1,1,1), Mask: net.CIDRMask(24, net.IPv4len)})
|
||||
_, err = netlink.ParseIPNet(ipv6TestStr)
|
||||
if err != nil {
|
||||
logger.Error.Fatalf("IPV6_FORMAT is invalid: %s", err)
|
||||
}
|
||||
ipv6Format := os.Getenv("IPV6_FORMAT")
|
||||
ipv6TestStr := *convertIPv4ToIPv6(&ipv6Format, &net.IPNet{IP: net.IPv4(1, 1, 1, 1), Mask: net.CIDRMask(24, net.IPv4len)})
|
||||
_, err = netlink.ParseIPNet(ipv6TestStr)
|
||||
if err != nil {
|
||||
logger.Error.Fatalf("IPV6_FORMAT is invalid: %s", err)
|
||||
}
|
||||
|
||||
filterPrefix := os.Getenv("FILTER_PREFIX")
|
||||
filterPrefix := os.Getenv("FILTER_PREFIX")
|
||||
|
||||
checkIntervalStr := os.Getenv("RECHECK_INTERVAL")
|
||||
checkInterval, err := time.ParseDuration(checkIntervalStr)
|
||||
checkIntervalStr := os.Getenv("RECHECK_INTERVAL")
|
||||
checkInterval, err := time.ParseDuration(checkIntervalStr)
|
||||
if err != nil {
|
||||
logger.Error.Fatalf("Couldn't parse RECHECK_INTERVAL '%s': %s", checkIntervalStr, err)
|
||||
}
|
||||
|
||||
// Get the IPv4 address of the interface
|
||||
addrs, err := netlink.AddrList(netInterface, netlink.FAMILY_V4)
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
processedCount := 0
|
||||
filteredCount := 0
|
||||
for _, addr := range addrs {
|
||||
// Check filter
|
||||
if addr.String()[:len(filterPrefix)] != filterPrefix {
|
||||
filteredCount++
|
||||
continue
|
||||
}
|
||||
// Create a WireGuard client
|
||||
client, err := wgctrl.New()
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
defer client.Close()
|
||||
|
||||
// Add the IPv6 address to the interface
|
||||
ipv6Str := *convertIPv4ToIPv6(&ipv6Format, addr.IPNet)
|
||||
ipv6, err := netlink.ParseAddr(ipv6Str)
|
||||
if err != nil {
|
||||
logger.Warn.Printf("failed parsing converted %s -> %s : %s", addr.IPNet.String(), ipv6Str, err)
|
||||
continue
|
||||
}
|
||||
// Loop indefinitely
|
||||
for {
|
||||
// Get the IPv4 addresses of the interface
|
||||
addrs, err := netlink.AddrList(netInterface, netlink.FAMILY_V4)
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
processedCount := 0
|
||||
filteredCount := 0
|
||||
for _, addr := range addrs {
|
||||
// Check filter
|
||||
if addr.String()[:len(filterPrefix)] != filterPrefix {
|
||||
filteredCount++
|
||||
continue
|
||||
}
|
||||
|
||||
logger.Info.Printf("Adding converted %s -> %s to interface", addr.IPNet.String(), ipv6Str)
|
||||
err = netlink.AddrAdd(netInterface, ipv6)
|
||||
if err != nil {
|
||||
switch {
|
||||
case os.IsExist(err):
|
||||
logger.Warn.Println("Address is already set on interface")
|
||||
default:
|
||||
logger.Warn.Printf("Failed to set address on interface: %v", err)
|
||||
}
|
||||
}
|
||||
processedCount++
|
||||
}
|
||||
if(processedCount != len(addrs)) {
|
||||
logger.Warn.Printf("Not all Interface-Addresses were processed. Summary: %d processed, %d filtered, %d failed", processedCount, filteredCount, len(addrs)-processedCount-filteredCount)
|
||||
}
|
||||
// Add the IPv6 address to the interface
|
||||
ipv6Str := *convertIPv4ToIPv6(&ipv6Format, addr.IPNet)
|
||||
ipv6, err := netlink.ParseAddr(ipv6Str)
|
||||
if err != nil {
|
||||
logger.Warn.Printf("failed parsing converted %s -> %s : %s", addr.IPNet.String(), ipv6Str, err)
|
||||
continue
|
||||
}
|
||||
|
||||
// Create a WireGuard client
|
||||
client, err := wgctrl.New()
|
||||
if err != nil {
|
||||
logger.Error.Fatal(err)
|
||||
}
|
||||
defer client.Close()
|
||||
logger.Info.Printf("Adding converted %s -> %s to interface", addr.IPNet.String(), ipv6Str)
|
||||
err = netlink.AddrAdd(netInterface, ipv6)
|
||||
if err != nil {
|
||||
switch {
|
||||
case os.IsExist(err):
|
||||
logger.Warn.Println("Address is already set on interface")
|
||||
default:
|
||||
logger.Error.Fatalf("Failed to set address on interface: %v", err)
|
||||
}
|
||||
}
|
||||
processedCount++
|
||||
}
|
||||
if processedCount != len(addrs) {
|
||||
logger.Warn.Printf("Not all Interface-Addresses were processed. Summary: %d processed, %d filtered, %d failed", processedCount, filteredCount, len(addrs)-processedCount-filteredCount)
|
||||
}
|
||||
|
||||
// Loop indefinitely
|
||||
for {
|
||||
// Get the WireGuard peers on the interface
|
||||
wgDevice, err := client.Device(iface)
|
||||
if err != nil {
|
||||
logger.Error.Fatalf("getting WireGuard device from interface '%s' failed: %s", iface, err)
|
||||
}
|
||||
// Get the WireGuard peers on the interface
|
||||
wgDevice, err := client.Device(iface)
|
||||
if err != nil {
|
||||
logger.Error.Fatalf("getting WireGuard device from interface '%s' failed: %s", iface, err)
|
||||
}
|
||||
|
||||
var wgConfig wgtypes.Config
|
||||
wgConfig.Peers = make([]wgtypes.PeerConfig, 0, len(wgDevice.Peers))
|
||||
wgConfig.Peers = make([]wgtypes.PeerConfig, 0, len(wgDevice.Peers))
|
||||
|
||||
for _, peer := range wgDevice.Peers {
|
||||
// Create slice for 1 expected addition
|
||||
var addAllowedIPs = make([]net.IPNet, 0, 1)
|
||||
for _, peer := range wgDevice.Peers {
|
||||
// Create slice for 1 expected addition
|
||||
var addAllowedIPs = make([]net.IPNet, 0, 1)
|
||||
|
||||
// Loop through the allowed-ips and add the ones starting with 100.100
|
||||
for _, allowedIP := range peer.AllowedIPs {
|
||||
if allowedIP.String()[:len(filterPrefix)] == filterPrefix {
|
||||
// Convert the IPv4 allowed-ip to an IPv6 address
|
||||
ipv6Str := *convertIPv4ToIPv6(&ipv6Format, &allowedIP)
|
||||
logger.Info.Printf("AllowedIP %s -> %s to peer %s", allowedIP.String(), ipv6Str, peer.PublicKey)
|
||||
ipv6, err := netlink.ParseIPNet(ipv6Str)
|
||||
if err != nil {
|
||||
logger.Warn.Printf("Couldnt parse IPv6 address %s of peer %s: %s", ipv6Str, peer.PublicKey, err)
|
||||
continue
|
||||
}
|
||||
|
||||
// Check if already set
|
||||
if i, _ := netchecks.IPNetIndexByIPNet(&peer.AllowedIPs, ipv6); i != -1 {
|
||||
continue
|
||||
}
|
||||
// Loop through the allowed-ips and add the ones starting with 100.100
|
||||
for _, allowedIP := range peer.AllowedIPs {
|
||||
if allowedIP.String()[:len(filterPrefix)] == filterPrefix {
|
||||
// Convert the IPv4 allowed-ip to an IPv6 address
|
||||
ipv6Str := *convertIPv4ToIPv6(&ipv6Format, &allowedIP)
|
||||
logger.Info.Printf("AllowedIP %s -> %s to peer %s", allowedIP.String(), ipv6Str, peer.PublicKey)
|
||||
ipv6, err := netlink.ParseIPNet(ipv6Str)
|
||||
if err != nil {
|
||||
logger.Warn.Printf("Couldnt parse IPv6 address %s of peer %s: %s", ipv6Str, peer.PublicKey, err)
|
||||
continue
|
||||
}
|
||||
|
||||
// Add the IPv6 allowed-ip to the peer
|
||||
addAllowedIPs = append(addAllowedIPs, *ipv6)
|
||||
}
|
||||
}
|
||||
// Check if already set
|
||||
if i, _ := netchecks.IPNetIndexByIPNet(&peer.AllowedIPs, ipv6); i != -1 {
|
||||
continue
|
||||
}
|
||||
|
||||
if(len(addAllowedIPs) > 0){
|
||||
// Create peer-config
|
||||
peerConfig := wgtypes.PeerConfig{
|
||||
PublicKey: peer.PublicKey,
|
||||
AllowedIPs: append(peer.AllowedIPs, addAllowedIPs...),
|
||||
}
|
||||
// Add the IPv6 allowed-ip to the peer
|
||||
addAllowedIPs = append(addAllowedIPs, *ipv6)
|
||||
}
|
||||
}
|
||||
|
||||
// Add entry
|
||||
wgConfig.Peers = append(wgConfig.Peers, peerConfig)
|
||||
}
|
||||
}
|
||||
if len(addAllowedIPs) > 0 {
|
||||
// Create peer-config
|
||||
peerConfig := wgtypes.PeerConfig{
|
||||
PublicKey: peer.PublicKey,
|
||||
AllowedIPs: append(peer.AllowedIPs, addAllowedIPs...),
|
||||
}
|
||||
|
||||
if(len(wgConfig.Peers) == 0){
|
||||
logger.Info.Println("No changes, skipping")
|
||||
} else {
|
||||
err = client.ConfigureDevice(iface, wgConfig)
|
||||
if(err != nil){
|
||||
logger.Error.Fatalf("Error configuring wg-device '%s': %s", iface, err)
|
||||
}
|
||||
}
|
||||
|
||||
// Sleep for x seconds before running the loop again
|
||||
time.Sleep(checkInterval)
|
||||
}
|
||||
// Add entry
|
||||
wgConfig.Peers = append(wgConfig.Peers, peerConfig)
|
||||
}
|
||||
}
|
||||
|
||||
if len(wgConfig.Peers) == 0 {
|
||||
logger.Info.Println("No changes, skipping")
|
||||
} else {
|
||||
err = client.ConfigureDevice(iface, wgConfig)
|
||||
if err != nil {
|
||||
logger.Error.Fatalf("Error configuring wg-device '%s': %s", iface, err)
|
||||
}
|
||||
}
|
||||
|
||||
// Sleep for x seconds before running the loop again
|
||||
time.Sleep(checkInterval)
|
||||
}
|
||||
}
|
||||
|
||||
func convertIPv4ToIPv6(ipv6Format *string, ipv4 *net.IPNet) (*string) {
|
||||
CIDR, _ := ipv4.Mask.Size()
|
||||
// Run format
|
||||
ipv6Str := fmt.Sprintf(*ipv6Format, (*ipv4).IP[0], (*ipv4).IP[1], (*ipv4).IP[2], (*ipv4).IP[3], net.IPv6len*8-(net.IPv4len*8-CIDR))
|
||||
return &ipv6Str
|
||||
func convertIPv4ToIPv6(ipv6Format *string, ipv4 *net.IPNet) *string {
|
||||
CIDR, _ := ipv4.Mask.Size()
|
||||
// Run format
|
||||
ipv6Str := fmt.Sprintf(*ipv6Format, (*ipv4).IP[0], (*ipv4).IP[1], (*ipv4).IP[2], (*ipv4).IP[3], net.IPv6len*8-(net.IPv4len*8-CIDR))
|
||||
return &ipv6Str
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user