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746 lines
16 KiB
Go
746 lines
16 KiB
Go
// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ipnlocal
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import (
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"fmt"
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"net"
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"net/http"
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"net/netip"
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"reflect"
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"testing"
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"time"
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"go4.org/netipx"
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"tailscale.com/ipn"
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"tailscale.com/ipn/store/mem"
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"tailscale.com/net/interfaces"
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"tailscale.com/net/tsaddr"
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"tailscale.com/tailcfg"
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"tailscale.com/types/logger"
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"tailscale.com/types/netmap"
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"tailscale.com/wgengine"
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"tailscale.com/wgengine/filter"
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"tailscale.com/wgengine/wgcfg"
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)
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func TestNetworkMapCompare(t *testing.T) {
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prefix1, err := netip.ParsePrefix("192.168.0.0/24")
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if err != nil {
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t.Fatal(err)
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}
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node1 := &tailcfg.Node{Addresses: []netip.Prefix{prefix1}}
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prefix2, err := netip.ParsePrefix("10.0.0.0/8")
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if err != nil {
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t.Fatal(err)
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}
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node2 := &tailcfg.Node{Addresses: []netip.Prefix{prefix2}}
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tests := []struct {
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name string
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a, b *netmap.NetworkMap
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want bool
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}{
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{
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"both nil",
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nil,
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nil,
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true,
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},
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{
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"b nil",
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&netmap.NetworkMap{},
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nil,
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false,
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},
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{
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"a nil",
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nil,
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&netmap.NetworkMap{},
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false,
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},
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{
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"both default",
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&netmap.NetworkMap{},
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&netmap.NetworkMap{},
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true,
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},
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{
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"names identical",
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&netmap.NetworkMap{Name: "map1"},
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&netmap.NetworkMap{Name: "map1"},
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true,
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},
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{
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"names differ",
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&netmap.NetworkMap{Name: "map1"},
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&netmap.NetworkMap{Name: "map2"},
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false,
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},
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{
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"Peers identical",
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&netmap.NetworkMap{Peers: []*tailcfg.Node{}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{}},
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true,
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},
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{
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"Peer list length",
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// length of Peers list differs
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{}}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{}},
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false,
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},
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{
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"Node names identical",
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{Name: "A"}}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{Name: "A"}}},
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true,
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},
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{
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"Node names differ",
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{Name: "A"}}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{Name: "B"}}},
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false,
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},
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{
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"Node lists identical",
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&netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node1}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node1}},
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true,
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},
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{
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"Node lists differ",
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&netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node1}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{node1, node2}},
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false,
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},
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{
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"Node Users differ",
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// User field is not checked.
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{User: 0}}},
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&netmap.NetworkMap{Peers: []*tailcfg.Node{{User: 1}}},
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true,
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},
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}
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for _, tt := range tests {
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got := dnsMapsEqual(tt.a, tt.b)
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if got != tt.want {
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t.Errorf("%s: Equal = %v; want %v", tt.name, got, tt.want)
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}
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}
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}
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func inRemove(ip netip.Addr) bool {
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for _, pfx := range removeFromDefaultRoute {
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if pfx.Contains(ip) {
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return true
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}
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}
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return false
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}
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func TestShrinkDefaultRoute(t *testing.T) {
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tests := []struct {
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route string
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in []string
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out []string
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localIPFn func(netip.Addr) bool // true if this machine's local IP address should be "in" after shrinking.
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}{
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{
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route: "0.0.0.0/0",
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in: []string{"1.2.3.4", "25.0.0.1"},
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out: []string{
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"10.0.0.1",
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"10.255.255.255",
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"192.168.0.1",
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"192.168.255.255",
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"172.16.0.1",
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"172.31.255.255",
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"100.101.102.103",
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"224.0.0.1",
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"169.254.169.254",
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// Some random IPv6 stuff that shouldn't be in a v4
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// default route.
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"fe80::",
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"2601::1",
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},
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localIPFn: func(ip netip.Addr) bool { return !inRemove(ip) && ip.Is4() },
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},
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{
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route: "::/0",
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in: []string{"::1", "2601::1"},
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out: []string{
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"fe80::1",
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"ff00::1",
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tsaddr.TailscaleULARange().Addr().String(),
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},
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localIPFn: func(ip netip.Addr) bool { return !inRemove(ip) && ip.Is6() },
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},
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}
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// Construct a fake local network environment to make this test hermetic.
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// localInterfaceRoutes and hostIPs would normally come from calling interfaceRoutes,
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// and localAddresses would normally come from calling interfaces.LocalAddresses.
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var b netipx.IPSetBuilder
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for _, c := range []string{"127.0.0.0/8", "192.168.9.0/24", "fe80::/32"} {
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p := netip.MustParsePrefix(c)
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b.AddPrefix(p)
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}
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localInterfaceRoutes, err := b.IPSet()
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if err != nil {
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t.Fatal(err)
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}
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hostIPs := []netip.Addr{
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netip.MustParseAddr("127.0.0.1"),
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netip.MustParseAddr("192.168.9.39"),
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netip.MustParseAddr("fe80::1"),
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netip.MustParseAddr("fe80::437d:feff:feca:49a7"),
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}
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localAddresses := []netip.Addr{
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netip.MustParseAddr("192.168.9.39"),
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}
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for _, test := range tests {
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def := netip.MustParsePrefix(test.route)
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got, err := shrinkDefaultRoute(def, localInterfaceRoutes, hostIPs)
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if err != nil {
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t.Fatalf("shrinkDefaultRoute(%q): %v", test.route, err)
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}
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for _, ip := range test.in {
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if !got.Contains(netip.MustParseAddr(ip)) {
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t.Errorf("shrink(%q).Contains(%v) = false, want true", test.route, ip)
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}
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}
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for _, ip := range test.out {
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if got.Contains(netip.MustParseAddr(ip)) {
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t.Errorf("shrink(%q).Contains(%v) = true, want false", test.route, ip)
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}
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}
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for _, ip := range localAddresses {
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want := test.localIPFn(ip)
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if gotContains := got.Contains(ip); gotContains != want {
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t.Errorf("shrink(%q).Contains(%v) = %v, want %v", test.route, ip, gotContains, want)
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}
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}
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}
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}
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func TestPeerRoutes(t *testing.T) {
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pp := netip.MustParsePrefix
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tests := []struct {
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name string
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peers []wgcfg.Peer
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want []netip.Prefix
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}{
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{
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name: "small_v4",
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peers: []wgcfg.Peer{
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{
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AllowedIPs: []netip.Prefix{
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pp("100.101.102.103/32"),
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},
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},
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},
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want: []netip.Prefix{
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pp("100.101.102.103/32"),
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},
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},
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{
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name: "big_v4",
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peers: []wgcfg.Peer{
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{
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AllowedIPs: []netip.Prefix{
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pp("100.101.102.103/32"),
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pp("100.101.102.104/32"),
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pp("100.101.102.105/32"),
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},
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},
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},
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want: []netip.Prefix{
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pp("100.64.0.0/10"),
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},
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},
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{
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name: "has_1_v6",
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peers: []wgcfg.Peer{
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{
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AllowedIPs: []netip.Prefix{
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pp("fd7a:115c:a1e0:ab12:4843:cd96:6258:b240/128"),
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},
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},
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},
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want: []netip.Prefix{
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pp("fd7a:115c:a1e0::/48"),
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},
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},
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{
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name: "has_2_v6",
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peers: []wgcfg.Peer{
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{
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AllowedIPs: []netip.Prefix{
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pp("fd7a:115c:a1e0:ab12:4843:cd96:6258:b240/128"),
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pp("fd7a:115c:a1e0:ab12:4843:cd96:6258:b241/128"),
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},
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},
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},
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want: []netip.Prefix{
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pp("fd7a:115c:a1e0::/48"),
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},
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},
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{
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name: "big_v4_big_v6",
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peers: []wgcfg.Peer{
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{
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AllowedIPs: []netip.Prefix{
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pp("100.101.102.103/32"),
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pp("100.101.102.104/32"),
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pp("100.101.102.105/32"),
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pp("fd7a:115c:a1e0:ab12:4843:cd96:6258:b240/128"),
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pp("fd7a:115c:a1e0:ab12:4843:cd96:6258:b241/128"),
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},
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},
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},
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want: []netip.Prefix{
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pp("100.64.0.0/10"),
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pp("fd7a:115c:a1e0::/48"),
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},
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},
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{
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name: "output-should-be-sorted",
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peers: []wgcfg.Peer{
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{
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AllowedIPs: []netip.Prefix{
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pp("100.64.0.2/32"),
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pp("10.0.0.0/16"),
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},
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},
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{
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AllowedIPs: []netip.Prefix{
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pp("100.64.0.1/32"),
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pp("10.0.0.0/8"),
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},
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},
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},
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want: []netip.Prefix{
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pp("10.0.0.0/8"),
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pp("10.0.0.0/16"),
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pp("100.64.0.1/32"),
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pp("100.64.0.2/32"),
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := peerRoutes(tt.peers, 2)
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if !reflect.DeepEqual(got, tt.want) {
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t.Errorf("got = %v; want %v", got, tt.want)
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}
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})
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}
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}
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func TestPeerAPIBase(t *testing.T) {
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tests := []struct {
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name string
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nm *netmap.NetworkMap
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peer *tailcfg.Node
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want string
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}{
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{
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name: "nil_netmap",
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peer: new(tailcfg.Node),
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want: "",
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},
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{
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name: "nil_peer",
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nm: new(netmap.NetworkMap),
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want: "",
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},
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{
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name: "self_only_4_them_both",
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nm: &netmap.NetworkMap{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.1/32"),
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},
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},
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peer: &tailcfg.Node{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.2/32"),
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netip.MustParsePrefix("fe70::2/128"),
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},
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Hostinfo: (&tailcfg.Hostinfo{
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Services: []tailcfg.Service{
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{Proto: "peerapi4", Port: 444},
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{Proto: "peerapi6", Port: 666},
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},
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}).View(),
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},
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want: "http://100.64.1.2:444",
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},
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{
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name: "self_only_6_them_both",
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nm: &netmap.NetworkMap{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("fe70::1/128"),
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},
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},
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peer: &tailcfg.Node{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.2/32"),
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netip.MustParsePrefix("fe70::2/128"),
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},
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Hostinfo: (&tailcfg.Hostinfo{
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Services: []tailcfg.Service{
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{Proto: "peerapi4", Port: 444},
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{Proto: "peerapi6", Port: 666},
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},
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}).View(),
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},
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want: "http://[fe70::2]:666",
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},
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{
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name: "self_both_them_only_4",
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nm: &netmap.NetworkMap{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.1/32"),
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netip.MustParsePrefix("fe70::1/128"),
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},
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},
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peer: &tailcfg.Node{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.2/32"),
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netip.MustParsePrefix("fe70::2/128"),
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},
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Hostinfo: (&tailcfg.Hostinfo{
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Services: []tailcfg.Service{
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{Proto: "peerapi4", Port: 444},
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},
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}).View(),
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},
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want: "http://100.64.1.2:444",
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},
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{
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name: "self_both_them_only_6",
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nm: &netmap.NetworkMap{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.1/32"),
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netip.MustParsePrefix("fe70::1/128"),
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},
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},
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peer: &tailcfg.Node{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.2/32"),
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netip.MustParsePrefix("fe70::2/128"),
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},
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Hostinfo: (&tailcfg.Hostinfo{
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Services: []tailcfg.Service{
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{Proto: "peerapi6", Port: 666},
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},
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}).View(),
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},
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want: "http://[fe70::2]:666",
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},
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{
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name: "self_both_them_no_peerapi_service",
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nm: &netmap.NetworkMap{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.1/32"),
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netip.MustParsePrefix("fe70::1/128"),
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},
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},
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peer: &tailcfg.Node{
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Addresses: []netip.Prefix{
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netip.MustParsePrefix("100.64.1.2/32"),
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netip.MustParsePrefix("fe70::2/128"),
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},
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},
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want: "",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := peerAPIBase(tt.nm, tt.peer)
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if got != tt.want {
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t.Errorf("got %q; want %q", got, tt.want)
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}
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})
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}
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}
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|
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type panicOnUseTransport struct{}
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|
|
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func (panicOnUseTransport) RoundTrip(*http.Request) (*http.Response, error) {
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panic("unexpected HTTP request")
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}
|
|
|
|
// Issue 1573: don't generate a machine key if we don't want to be running.
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func TestLazyMachineKeyGeneration(t *testing.T) {
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defer func(old func() bool) { panicOnMachineKeyGeneration = old }(panicOnMachineKeyGeneration)
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panicOnMachineKeyGeneration = func() bool { return true }
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|
|
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var logf logger.Logf = logger.Discard
|
|
store := new(mem.Store)
|
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eng, err := wgengine.NewFakeUserspaceEngine(logf, 0)
|
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if err != nil {
|
|
t.Fatalf("NewFakeUserspaceEngine: %v", err)
|
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}
|
|
t.Cleanup(eng.Close)
|
|
lb, err := NewLocalBackend(logf, "logid", store, "default", nil, eng, 0)
|
|
if err != nil {
|
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t.Fatalf("NewLocalBackend: %v", err)
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}
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|
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lb.SetHTTPTestClient(&http.Client{
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Transport: panicOnUseTransport{}, // validate we don't send HTTP requests
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})
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|
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if err := lb.Start(ipn.Options{}); err != nil {
|
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t.Fatalf("Start: %v", err)
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}
|
|
|
|
// Give the controlclient package goroutines (if they're
|
|
// accidentally started) extra time to schedule and run (and thus
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|
// hit panicOnUseTransport).
|
|
time.Sleep(500 * time.Millisecond)
|
|
}
|
|
|
|
func TestFileTargets(t *testing.T) {
|
|
b := new(LocalBackend)
|
|
_, err := b.FileTargets()
|
|
if got, want := fmt.Sprint(err), "not connected to the tailnet"; got != want {
|
|
t.Errorf("before connect: got %q; want %q", got, want)
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}
|
|
|
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b.netMap = new(netmap.NetworkMap)
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_, err = b.FileTargets()
|
|
if got, want := fmt.Sprint(err), "not connected to the tailnet"; got != want {
|
|
t.Errorf("non-running netmap: got %q; want %q", got, want)
|
|
}
|
|
|
|
b.state = ipn.Running
|
|
_, err = b.FileTargets()
|
|
if got, want := fmt.Sprint(err), "file sharing not enabled by Tailscale admin"; got != want {
|
|
t.Errorf("without cap: got %q; want %q", got, want)
|
|
}
|
|
|
|
b.capFileSharing = true
|
|
got, err := b.FileTargets()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(got) != 0 {
|
|
t.Fatalf("unexpected %d peers", len(got))
|
|
}
|
|
// (other cases handled by TestPeerAPIBase above)
|
|
}
|
|
|
|
func TestInternalAndExternalInterfaces(t *testing.T) {
|
|
type interfacePrefix struct {
|
|
i interfaces.Interface
|
|
pfx netip.Prefix
|
|
}
|
|
|
|
masked := func(ips ...interfacePrefix) (pfxs []netip.Prefix) {
|
|
for _, ip := range ips {
|
|
pfxs = append(pfxs, ip.pfx.Masked())
|
|
}
|
|
return pfxs
|
|
}
|
|
iList := func(ips ...interfacePrefix) (il interfaces.List) {
|
|
for _, ip := range ips {
|
|
il = append(il, ip.i)
|
|
}
|
|
return il
|
|
}
|
|
newInterface := func(name, pfx string, wsl2, loopback bool) interfacePrefix {
|
|
ippfx := netip.MustParsePrefix(pfx)
|
|
ip := interfaces.Interface{
|
|
Interface: &net.Interface{},
|
|
AltAddrs: []net.Addr{
|
|
netipx.PrefixIPNet(ippfx),
|
|
},
|
|
}
|
|
if loopback {
|
|
ip.Flags = net.FlagLoopback
|
|
}
|
|
if wsl2 {
|
|
ip.HardwareAddr = []byte{0x00, 0x15, 0x5d, 0x00, 0x00, 0x00}
|
|
}
|
|
return interfacePrefix{i: ip, pfx: ippfx}
|
|
}
|
|
var (
|
|
en0 = newInterface("en0", "10.20.2.5/16", false, false)
|
|
en1 = newInterface("en1", "192.168.1.237/24", false, false)
|
|
wsl = newInterface("wsl", "192.168.5.34/24", true, false)
|
|
loopback = newInterface("lo0", "127.0.0.1/8", false, true)
|
|
)
|
|
|
|
tests := []struct {
|
|
name string
|
|
goos string
|
|
il interfaces.List
|
|
wantInt []netip.Prefix
|
|
wantExt []netip.Prefix
|
|
}{
|
|
{
|
|
name: "single-interface",
|
|
goos: "linux",
|
|
il: iList(
|
|
en0,
|
|
loopback,
|
|
),
|
|
wantInt: masked(loopback),
|
|
wantExt: masked(en0),
|
|
},
|
|
{
|
|
name: "multiple-interfaces",
|
|
goos: "linux",
|
|
il: iList(
|
|
en0,
|
|
en1,
|
|
wsl,
|
|
loopback,
|
|
),
|
|
wantInt: masked(loopback),
|
|
wantExt: masked(en0, en1, wsl),
|
|
},
|
|
{
|
|
name: "wsl2",
|
|
goos: "windows",
|
|
il: iList(
|
|
en0,
|
|
en1,
|
|
wsl,
|
|
loopback,
|
|
),
|
|
wantInt: masked(loopback, wsl),
|
|
wantExt: masked(en0, en1),
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
gotInt, gotExt, err := internalAndExternalInterfacesFrom(tc.il, tc.goos)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !reflect.DeepEqual(gotInt, tc.wantInt) {
|
|
t.Errorf("unexpected internal prefixes\ngot %v\nwant %v", gotInt, tc.wantInt)
|
|
}
|
|
if !reflect.DeepEqual(gotExt, tc.wantExt) {
|
|
t.Errorf("unexpected external prefixes\ngot %v\nwant %v", gotExt, tc.wantExt)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestPacketFilterPermitsUnlockedNodes(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
peers []*tailcfg.Node
|
|
filter []filter.Match
|
|
want bool
|
|
}{
|
|
{
|
|
name: "empty",
|
|
want: false,
|
|
},
|
|
{
|
|
name: "no-unsigned",
|
|
peers: []*tailcfg.Node{
|
|
{ID: 1},
|
|
},
|
|
want: false,
|
|
},
|
|
{
|
|
name: "unsigned-good",
|
|
peers: []*tailcfg.Node{
|
|
{ID: 1, UnsignedPeerAPIOnly: true},
|
|
},
|
|
want: false,
|
|
},
|
|
{
|
|
name: "unsigned-bad",
|
|
peers: []*tailcfg.Node{
|
|
{
|
|
ID: 1,
|
|
UnsignedPeerAPIOnly: true,
|
|
AllowedIPs: []netip.Prefix{
|
|
netip.MustParsePrefix("100.64.0.0/32"),
|
|
},
|
|
},
|
|
},
|
|
filter: []filter.Match{
|
|
{
|
|
Srcs: []netip.Prefix{netip.MustParsePrefix("100.64.0.0/32")},
|
|
Dsts: []filter.NetPortRange{
|
|
{
|
|
Net: netip.MustParsePrefix("100.99.0.0/32"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
want: true,
|
|
},
|
|
{
|
|
name: "unsigned-bad-src-is-superset",
|
|
peers: []*tailcfg.Node{
|
|
{
|
|
ID: 1,
|
|
UnsignedPeerAPIOnly: true,
|
|
AllowedIPs: []netip.Prefix{
|
|
netip.MustParsePrefix("100.64.0.0/32"),
|
|
},
|
|
},
|
|
},
|
|
filter: []filter.Match{
|
|
{
|
|
Srcs: []netip.Prefix{netip.MustParsePrefix("100.64.0.0/24")},
|
|
Dsts: []filter.NetPortRange{
|
|
{
|
|
Net: netip.MustParsePrefix("100.99.0.0/32"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
want: true,
|
|
},
|
|
{
|
|
name: "unsigned-okay-because-no-dsts",
|
|
peers: []*tailcfg.Node{
|
|
{
|
|
ID: 1,
|
|
UnsignedPeerAPIOnly: true,
|
|
AllowedIPs: []netip.Prefix{
|
|
netip.MustParsePrefix("100.64.0.0/32"),
|
|
},
|
|
},
|
|
},
|
|
filter: []filter.Match{
|
|
{
|
|
Srcs: []netip.Prefix{netip.MustParsePrefix("100.64.0.0/32")},
|
|
Caps: []filter.CapMatch{
|
|
{
|
|
Dst: netip.MustParsePrefix("100.99.0.0/32"),
|
|
Cap: "foo",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
want: false,
|
|
},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
if got := packetFilterPermitsUnlockedNodes(tt.peers, tt.filter); got != tt.want {
|
|
t.Errorf("got %v, want %v", got, tt.want)
|
|
}
|
|
})
|
|
}
|
|
|
|
}
|