[client] Add IPv6 support to ACL manager, USP filter, and forwarder (#5688)

This commit is contained in:
Viktor Liu
2026-04-09 16:56:08 +08:00
committed by GitHub
parent a1e7db2713
commit 1c4e5e71d7
78 changed files with 3606 additions and 1071 deletions

View File

@@ -9,6 +9,7 @@ import (
"net/url"
"regexp"
"slices"
"strconv"
"strings"
)
@@ -26,8 +27,9 @@ type Anonymizer struct {
}
func DefaultAddresses() (netip.Addr, netip.Addr) {
// 198.51.100.0, 100::
return netip.AddrFrom4([4]byte{198, 51, 100, 0}), netip.AddrFrom16([16]byte{0x01})
// 198.51.100.0 (RFC 5737 TEST-NET-2), 2001:db8:ffff:: (RFC 3849 documentation, last /48)
// The old start 100:: (discard, RFC 6666) is now used for fake IPs on Android.
return netip.AddrFrom4([4]byte{198, 51, 100, 0}), netip.MustParseAddr("2001:db8:ffff::")
}
func NewAnonymizer(startIPv4, startIPv6 netip.Addr) *Anonymizer {
@@ -96,6 +98,11 @@ func (a *Anonymizer) isInAnonymizedRange(ip netip.Addr) bool {
}
func (a *Anonymizer) AnonymizeIPString(ip string) string {
// Handle CIDR notation (e.g. "2001:db8::/32")
if prefix, err := netip.ParsePrefix(ip); err == nil {
return a.AnonymizeIP(prefix.Addr()).String() + "/" + strconv.Itoa(prefix.Bits())
}
addr, err := netip.ParseAddr(ip)
if err != nil {
return ip

View File

@@ -13,7 +13,7 @@ import (
func TestAnonymizeIP(t *testing.T) {
startIPv4 := netip.MustParseAddr("198.51.100.0")
startIPv6 := netip.MustParseAddr("100::")
startIPv6 := netip.MustParseAddr("2001:db8:ffff::")
anonymizer := anonymize.NewAnonymizer(startIPv4, startIPv6)
tests := []struct {
@@ -26,9 +26,9 @@ func TestAnonymizeIP(t *testing.T) {
{"Second Public IPv4", "4.3.2.1", "198.51.100.1"},
{"Repeated IPv4", "1.2.3.4", "198.51.100.0"},
{"Private IPv4", "192.168.1.1", "192.168.1.1"},
{"First Public IPv6", "2607:f8b0:4005:805::200e", "100::"},
{"Second Public IPv6", "a::b", "100::1"},
{"Repeated IPv6", "2607:f8b0:4005:805::200e", "100::"},
{"First Public IPv6", "2607:f8b0:4005:805::200e", "2001:db8:ffff::"},
{"Second Public IPv6", "a::b", "2001:db8:ffff::1"},
{"Repeated IPv6", "2607:f8b0:4005:805::200e", "2001:db8:ffff::"},
{"Private IPv6", "fe80::1", "fe80::1"},
{"In Range IPv4", "198.51.100.2", "198.51.100.2"},
}
@@ -274,17 +274,17 @@ func TestAnonymizeString_IPAddresses(t *testing.T) {
{
name: "IPv6 Address",
input: "Access attempted from 2001:db8::ff00:42",
expect: "Access attempted from 100::",
expect: "Access attempted from 2001:db8:ffff::",
},
{
name: "IPv6 Address with Port",
input: "Access attempted from [2001:db8::ff00:42]:8080",
expect: "Access attempted from [100::]:8080",
expect: "Access attempted from [2001:db8:ffff::]:8080",
},
{
name: "Both IPv4 and IPv6",
input: "IPv4: 142.108.0.1 and IPv6: 2001:db8::ff00:43",
expect: "IPv4: 198.51.100.1 and IPv6: 100::1",
expect: "IPv4: 198.51.100.1 and IPv6: 2001:db8:ffff::1",
},
}