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TUN inbound: Add autoSystemWfpBlockLeak on Windows (blocks "dns" and "misconfigtun" IPv4/IPv6 traffic leaks outside the TUN); Rename autoSystemDNS to autoSystemDnsToGateway on Linux (and change some behaviors) (#6853)

Browse Source 
https://github.com/XTLS/Xray-core/pull/6853#issuecomment-5899791359
https://github.com/XTLS/Xray-core/pull/6853#issuecomment-5901287980
https://github.com/XTLS/Xray-core/pull/6853#issuecomment-5903680113
https://github.com/XTLS/Xray-core/pull/6853#issuecomment-5904123488
https://github.com/XTLS/Xray-core/pull/6853#issuecomment-5904647772
https://github.com/XTLS/Xray-core/pull/6853#issuecomment-5905047424

Fixes https://github.com/XTLS/Xray-core/issues/6454#issuecomment-5863800676

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
patterniha
2026-09-30 06:26:16 +00:00
committed by RPRX
co-authored by Claude Opus 5.5
parent 0086362663
commit 1f304916bd
16 changed files with 1194 additions and 49 deletions
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proxy/tun/tun_linux_dns_test.go
+17 -8
View File
@@ -58,9 +58,9 @@ func recorder(t *testing.T, failOn string) *[][]string {
func optedInTun() *LinuxTun {
return &LinuxTun{
options: &Config{
Name: "xray_tun",
Gateway: []string{"192.168.100.1/30"},
AutoSystemDns: true,
Name: "xray_tun",
Gateway: []string{"192.168.100.1/30"},
AutoSystemDnsToGateway: true,
},
tunLink: testLink("xray_tun"),
}
@@ -79,7 +79,7 @@ func TestConfigureSystemDNSDisabledByDefault(t *testing.T) {
calls := recorder(t, "")
t1 := optedInTun()
t1.options.AutoSystemDns = false
t1.options.AutoSystemDnsToGateway = false
if err := t1.ConfigureSystemDNS(context.Background(), "tun"); err != nil {
t.Fatalf("unexpected error: %v", err)
@@ -103,7 +103,7 @@ func TestConfigureSystemDNSNoGateway(t *testing.T) {
t1.options.Gateway = nil
if err := t1.ConfigureSystemDNS(context.Background(), "tun"); err == nil {
t.Fatal("expected an error when no IPv4 gateway is configured")
t.Fatal("expected an error when no gateway is configured")
}
if len(*probes) != 0 {
t.Errorf("routing probe must not run without a gateway, got %d calls", len(*probes))
@@ -351,9 +351,18 @@ func TestSystemDNSAddrs(t *testing.T) {
wantOK: false,
},
{
name: "ipv6 only",
gateway: []string{"fc00::1/64"},
wantOK: false,
name: "ipv6 only",
gateway: []string{"fc00::1/64"},
wantSource: "fc00::1",
wantDNS: "fc00::2",
wantOK: true,
},
{
name: "first ipv6 without ipv4",
gateway: []string{"fc00::1/64", "fd00::1/64"},
wantSource: "fc00::1",
wantDNS: "fc00::2",
wantOK: true,
},
}