Add support for IPv6 networks (on Linux clients) (#1459)

* Feat add basic support for IPv6 networks

Newly generated networks automatically generate an IPv6 prefix of size
64 within the ULA address range, devices obtain a randomly generated
address within this prefix.

Currently, this is Linux only and does not yet support all features
(routes currently cause an error).

* Fix firewall configuration for IPv6 networks

* Fix routing configuration for IPv6 networks

* Feat provide info on IPv6 support for specific client to mgmt server

* Feat allow configuration of IPv6 support through API, improve stability

* Feat add IPv6 support to new firewall implementation

* Fix peer list item response not containing IPv6 address

* Fix nftables breaking on IPv6 address change

* Fix build issues for non-linux systems

* Fix intermittent disconnections when IPv6 is enabled

* Fix test issues and make some minor revisions

* Fix some more testing issues

* Fix more CI issues due to IPv6

* Fix more testing issues

* Add inheritance of IPv6 enablement status from groups

* Fix IPv6 events not having associated messages

* Address first review comments regarding IPv6 support

* Fix IPv6 table being created even when IPv6 is disabled

Also improved stability of IPv6 route and firewall handling on client side

* Fix IPv6 routes not being removed

* Fix DNS IPv6 issues, limit IPv6 nameservers to IPv6 peers

* Improve code for IPv6 DNS server selection, add AAAA custom records

* Ensure IPv6 routes can only exist for IPv6 routing peers

* Fix IPv6 network generation randomness

* Fix a bunch of compilation issues and test failures

* Replace method calls that are unavailable in Go 1.21

* Fix nil dereference in cleanUpDefaultForwardRules6

* Fix nil pointer dereference when persisting IPv6 network in sqlite

* Clean up of client-side code changes for IPv6

* Fix nil dereference in rule mangling and compilation issues

* Add a bunch of client-side test cases for IPv6

* Fix IPv6 tests running on unsupported environments

* Fix import cycle in tests

* Add missing method SupportsIPv6() for windows

* Require IPv6 default route for IPv6 tests

* Fix panics in routemanager tests on non-linux

* Fix some more route manager tests concerning IPv6

* Add some final client-side tests

* Add IPv6 tests for management code, small fixes

* Fix linting issues

* Fix small test suite issues

* Fix linter issues and builds on macOS and Windows again

* fix builds for iOS because of IPv6 breakage
This commit is contained in:
Hugo Hakim Damer
2024-08-13 17:26:27 +02:00
committed by GitHub
parent 4da29451d0
commit 8b0398c0db
85 changed files with 4311 additions and 795 deletions
+431 -1
View File
@@ -36,6 +36,7 @@ func TestManagerUpdateRoutes(t *testing.T) {
serverRoutesExpected int
clientNetworkWatchersExpected int
clientNetworkWatchersExpectedAllowed int
isV6 bool
}{
{
name: "Should create 2 client networks",
@@ -65,6 +66,35 @@ func TestManagerUpdateRoutes(t *testing.T) {
inputSerial: 1,
clientNetworkWatchersExpected: 2,
},
{
name: "Should create 2 client networks (IPv6)",
inputInitRoutes: []*route.Route{},
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::7890:abcd/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 2,
isV6: true,
},
{
name: "Should Create 2 Server Routes",
inputRoutes: []*route.Route{
@@ -93,6 +123,34 @@ func TestManagerUpdateRoutes(t *testing.T) {
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 0,
},
{
name: "Should Create 2 Server Routes (IPv6)",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8::7890:abcd/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 0,
},
{
name: "Should Create 1 Route For Client And Server",
inputRoutes: []*route.Route{
@@ -121,6 +179,84 @@ func TestManagerUpdateRoutes(t *testing.T) {
serverRoutesExpected: 1,
clientNetworkWatchersExpected: 1,
},
{
name: "Should Create 1 Route For Client And Server (IPv6)",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::7890:abcd/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
serverRoutesExpected: 1,
clientNetworkWatchersExpected: 1,
isV6: true,
},
{
name: "Should Create 1 Route For Client And Server for each IP version",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("100.64.30.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.9.9/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::7890:abcd/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 2,
isV6: true,
},
{
name: "Should Create 1 Route For Client and Skip Server Route On Empty Server Router",
inputRoutes: []*route.Route{
@@ -150,6 +286,36 @@ func TestManagerUpdateRoutes(t *testing.T) {
serverRoutesExpected: 0,
clientNetworkWatchersExpected: 1,
},
{
name: "Should Create 1 Route For Client and Skip Server Route On Empty Server Router (IPv6)",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::7890:abcd/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
removeSrvRouter: true,
serverRoutesExpected: 0,
clientNetworkWatchersExpected: 1,
isV6: true,
},
{
name: "Should Create 1 HA Route and 1 Standalone",
inputRoutes: []*route.Route{
@@ -187,6 +353,44 @@ func TestManagerUpdateRoutes(t *testing.T) {
inputSerial: 1,
clientNetworkWatchersExpected: 2,
},
{
name: "Should Create 1 HA Route and 1 Standalone (IPv6)",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeA",
Peer: remotePeerKey2,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "c",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::7890:abcd/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 2,
isV6: true,
},
{
name: "No Small Client Route Should Be Added",
inputRoutes: []*route.Route{
@@ -205,6 +409,25 @@ func TestManagerUpdateRoutes(t *testing.T) {
clientNetworkWatchersExpected: 0,
clientNetworkWatchersExpectedAllowed: 1,
},
{
name: "No Small Client Route Should Be Added (IPv6)",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("::/0"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 0,
clientNetworkWatchersExpectedAllowed: 1,
isV6: true,
},
{
name: "Remove 1 Client Route",
inputInitRoutes: []*route.Route{
@@ -244,6 +467,46 @@ func TestManagerUpdateRoutes(t *testing.T) {
inputSerial: 1,
clientNetworkWatchersExpected: 1,
},
{
name: "Remove 1 Client Route (IPv6)",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::abcd:7890/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 1,
isV6: true,
},
{
name: "Update Route to HA",
inputInitRoutes: []*route.Route{
@@ -293,6 +556,56 @@ func TestManagerUpdateRoutes(t *testing.T) {
inputSerial: 1,
clientNetworkWatchersExpected: 1,
},
{
name: "Update Route to HA (IPv6)",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::abcd:7890/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeA",
Peer: remotePeerKey2,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 1,
isV6: true,
},
{
name: "Remove Client Routes",
inputInitRoutes: []*route.Route{
@@ -321,6 +634,35 @@ func TestManagerUpdateRoutes(t *testing.T) {
inputSerial: 1,
clientNetworkWatchersExpected: 0,
},
{
name: "Remove Client Routes (IPv6)",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::abcd:7890/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{},
inputSerial: 1,
clientNetworkWatchersExpected: 0,
isV6: true,
},
{
name: "Remove All Routes",
inputInitRoutes: []*route.Route{
@@ -350,6 +692,36 @@ func TestManagerUpdateRoutes(t *testing.T) {
serverRoutesExpected: 0,
clientNetworkWatchersExpected: 0,
},
{
name: "Remove All Routes (IPv6)",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::abcd:7890/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{},
inputSerial: 1,
serverRoutesExpected: 0,
clientNetworkWatchersExpected: 0,
isV6: true,
},
{
name: "HA server should not register routes from the same HA group",
inputRoutes: []*route.Route{
@@ -398,16 +770,74 @@ func TestManagerUpdateRoutes(t *testing.T) {
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 1,
},
{
name: "HA server should not register routes from the same HA group (IPv6)",
inputRoutes: []*route.Route{
{
ID: "l1",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "l2",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("2001:db8::abcd:7890/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "r1",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8:1234:5678::/64"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "r2",
NetID: "routeC",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("2001:db8::abcd:789f/128"),
NetworkType: route.IPv6Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 1,
isV6: true,
},
}
for n, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
v6Addr := ""
//goland:noinspection GoBoolExpressions
if !iface.SupportsIPv6() && testCase.isV6 {
t.Skip("Platform does not support IPv6, skipping IPv6 test...")
} else if testCase.isV6 {
v6Addr = "2001:db8::4242:4711/128"
}
peerPrivateKey, _ := wgtypes.GeneratePrivateKey()
newNet, err := stdnet.NewNet()
if err != nil {
t.Fatal(err)
}
wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun43%d", n), "100.65.65.2/24", 33100, peerPrivateKey.String(), iface.DefaultMTU, newNet, nil)
wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun43%d", n), "100.65.65.2/24", v6Addr, 33100, peerPrivateKey.String(), iface.DefaultMTU, newNet, nil)
require.NoError(t, err, "should create testing WGIface interface")
defer wgInterface.Close()