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[management, client] Add IPv6 overlay support (#5631)

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This commit is contained in:
Viktor Liu
2026-05-07 18:33:37 +09:00
committed by GitHub
parent f23aaa9ae7
commit 205ebcfda2
229 changed files with 10155 additions and 2816 deletions
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15
client/internal/ebpf/ebpf/dns_fwd_linux.go
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@@ -2,7 +2,8 @@ package ebpf
import (
"encoding/binary"
"net"
"fmt"
"net/netip"
log "github.com/sirupsen/logrus"
)
@@ -12,7 +13,7 @@ const (
mapKeyDNSPort uint32 = 1
)
func (tf *GeneralManager) LoadDNSFwd(ip string, dnsPort int) error {
func (tf *GeneralManager) LoadDNSFwd(ip netip.Addr, dnsPort int) error {
log.Debugf("load eBPF DNS forwarder, watching addr: %s:53, redirect to port: %d", ip, dnsPort)
tf.lock.Lock()
defer tf.lock.Unlock()
@@ -22,7 +23,11 @@ func (tf *GeneralManager) LoadDNSFwd(ip string, dnsPort int) error {
return err
}
err = tf.bpfObjs.NbMapDnsIp.Put(mapKeyDNSIP, ip2int(ip))
if !ip.Is4() {
return fmt.Errorf("eBPF DNS forwarder only supports IPv4, got %s", ip)
}
ip4 := ip.As4()
err = tf.bpfObjs.NbMapDnsIp.Put(mapKeyDNSIP, binary.BigEndian.Uint32(ip4[:]))
if err != nil {
return err
}
@@ -45,7 +50,3 @@ func (tf *GeneralManager) FreeDNSFwd() error {
return tf.unsetFeatureFlag(featureFlagDnsForwarder)
}
func ip2int(ipString string) uint32 {
ip := net.ParseIP(ipString)
return binary.BigEndian.Uint32(ip.To4())
}

4
client/internal/ebpf/manager/manager.go
View File

@@ -1,8 +1,10 @@
package manager
import "net/netip"
// Manager is used to load multiple eBPF programs. E.g., current DNS programs and WireGuard proxy
type Manager interface {
LoadDNSFwd(ip string, dnsPort int) error
LoadDNSFwd(ip netip.Addr, dnsPort int) error
FreeDNSFwd() error
LoadWgProxy(proxyPort, wgPort int) error
FreeWGProxy() error