func TestGood(t *testing.T) {
n := addrmgr.New("testgood", lookupFunc)
addrsToAdd := 64 * 64
addrs := make([]*wire.NetAddress, addrsToAdd)
var err error
for i := 0; i < addrsToAdd; i++ {
s := fmt.Sprintf("%d.173.147.%d:8333", i/64+60, i%64+60)
addrs[i], err = n.DeserializeNetAddress(s)
if err != nil {
t.Errorf("Failed to turn %s into an address: %v", s, err)
}
}
srcAddr := wire.NewNetAddressIPPort(net.IPv4(173, 144, 173, 111), 8333, 0)
n.AddAddresses(addrs, srcAddr)
for _, addr := range addrs {
n.Good(addr)
}
numAddrs := n.NumAddresses()
if numAddrs >= addrsToAdd {
t.Errorf("Number of addresses is too many: %d vs %d", numAddrs, addrsToAdd)
}
numCache := len(n.AddressCache())
if numCache >= numAddrs/4 {
t.Errorf("Number of addresses in cache: got %d, want %d", numCache, numAddrs/4)
}
}
func TestNeedMoreAddresses(t *testing.T) {
n := addrmgr.New("testneedmoreaddresses", lookupFunc)
addrsToAdd := 1500
b := n.NeedMoreAddresses()
if !b {
t.Errorf("Expected that we need more addresses")
}
addrs := make([]*wire.NetAddress, addrsToAdd)
var err error
for i := 0; i < addrsToAdd; i++ {
s := fmt.Sprintf("%d.%d.173.147:8333", i/128+60, i%128+60)
addrs[i], err = n.DeserializeNetAddress(s)
if err != nil {
t.Errorf("Failed to turn %s into an address: %v", s, err)
}
}
srcAddr := wire.NewNetAddressIPPort(net.IPv4(173, 144, 173, 111), 8333, 0)
n.AddAddresses(addrs, srcAddr)
numAddrs := n.NumAddresses()
if numAddrs > addrsToAdd {
t.Errorf("Number of addresses is too many %d vs %d", numAddrs, addrsToAdd)
}
b = n.NeedMoreAddresses()
if b {
t.Errorf("Expected that we don't need more addresses")
}
}
// HostToNetAddress returns a netaddress given a host address. If the address is
// a tor .onion address this will be taken care of. else if the host is not an
// IP address it will be resolved (via tor if required).
func (a *AddrManager) HostToNetAddress(host string, port uint16, services wire.ServiceFlag) (*wire.NetAddress, error) {
// tor address is 16 char base32 + ".onion"
var ip net.IP
if len(host) == 22 && host[16:] == ".onion" {
// go base32 encoding uses capitals (as does the rfc
// but tor and bitcoind tend to user lowercase, so we switch
// case here.
data, err := base32.StdEncoding.DecodeString(
strings.ToUpper(host[:16]))
if err != nil {
return nil, err
}
prefix := []byte{0xfd, 0x87, 0xd8, 0x7e, 0xeb, 0x43}
ip = net.IP(append(prefix, data...))
} else if ip = net.ParseIP(host); ip == nil {
ips, err := a.lookupFunc(host)
if err != nil {
return nil, err
}
if len(ips) == 0 {
return nil, fmt.Errorf("no addresses found for %s", host)
}
ip = ips[0]
}
return wire.NewNetAddressIPPort(ip, port, services), nil
}
// TestGroupKey tests the GroupKey function to ensure it properly groups various
// IP addresses.
func TestGroupKey(t *testing.T) {
tests := []struct {
name string
ip string
expected string
}{
// Local addresses.
{name: "ipv4 localhost", ip: "127.0.0.1", expected: "local"},
{name: "ipv6 localhost", ip: "::1", expected: "local"},
{name: "ipv4 zero", ip: "0.0.0.0", expected: "local"},
{name: "ipv4 first octet zero", ip: "0.1.2.3", expected: "local"},
// Unroutable addresses.
{name: "ipv4 invalid bcast", ip: "255.255.255.255", expected: "unroutable"},
{name: "ipv4 rfc1918 10/8", ip: "10.1.2.3", expected: "unroutable"},
{name: "ipv4 rfc1918 172.16/12", ip: "172.16.1.2", expected: "unroutable"},
{name: "ipv4 rfc1918 192.168/16", ip: "192.168.1.2", expected: "unroutable"},
{name: "ipv6 rfc3849 2001:db8::/32", ip: "2001:db8::1234", expected: "unroutable"},
{name: "ipv4 rfc3927 169.254/16", ip: "169.254.1.2", expected: "unroutable"},
{name: "ipv6 rfc4193 fc00::/7", ip: "fc00::1234", expected: "unroutable"},
{name: "ipv6 rfc4843 2001:10::/28", ip: "2001:10::1234", expected: "unroutable"},
{name: "ipv6 rfc4862 fe80::/64", ip: "fe80::1234", expected: "unroutable"},
// IPv4 normal.
{name: "ipv4 normal class a", ip: "12.1.2.3", expected: "12.1.0.0"},
{name: "ipv4 normal class b", ip: "173.1.2.3", expected: "173.1.0.0"},
{name: "ipv4 normal class c", ip: "196.1.2.3", expected: "196.1.0.0"},
// IPv6/IPv4 translations.
{name: "ipv6 rfc3964 with ipv4 encap", ip: "2002:0c01:0203::", expected: "12.1.0.0"},
{name: "ipv6 rfc4380 toredo ipv4", ip: "2001:0:1234::f3fe:fdfc", expected: "12.1.0.0"},
{name: "ipv6 rfc6052 well-known prefix with ipv4", ip: "64:ff9b::0c01:0203", expected: "12.1.0.0"},
{name: "ipv6 rfc6145 translated ipv4", ip: "::ffff:0:0c01:0203", expected: "12.1.0.0"},
// Tor.
{name: "ipv6 tor onioncat", ip: "fd87:d87e:eb43:1234::5678", expected: "tor:2"},
{name: "ipv6 tor onioncat 2", ip: "fd87:d87e:eb43:1245::6789", expected: "tor:2"},
{name: "ipv6 tor onioncat 3", ip: "fd87:d87e:eb43:1345::6789", expected: "tor:3"},
// IPv6 normal.
{name: "ipv6 normal", ip: "2602:100::1", expected: "2602:100::"},
{name: "ipv6 normal 2", ip: "2602:0100::1234", expected: "2602:100::"},
{name: "ipv6 hurricane electric", ip: "2001:470:1f10:a1::2", expected: "2001:470:1000::"},
{name: "ipv6 hurricane electric 2", ip: "2001:0470:1f10:a1::2", expected: "2001:470:1000::"},
}
for i, test := range tests {
nip := net.ParseIP(test.ip)
na := *wire.NewNetAddressIPPort(nip, 8333, wire.SFNodeNetwork)
if key := addrmgr.GroupKey(&na); key != test.expected {
t.Errorf("TestGroupKey #%d (%s): unexpected group key "+
"- got '%s', want '%s'", i, test.name,
key, test.expected)
}
}
}
// AddAddressByIP adds an address where we are given an ip:port and not a
// wire.NetAddress.
func (a *AddrManager) AddAddressByIP(addrIP string) error {
// Split IP and port
addr, portStr, err := net.SplitHostPort(addrIP)
if err != nil {
return err
}
// Put it in wire.Netaddress
ip := net.ParseIP(addr)
if ip == nil {
return fmt.Errorf("invalid ip address %s", addr)
}
port, err := strconv.ParseUint(portStr, 10, 0)
if err != nil {
return fmt.Errorf("invalid port %s: %v", portStr, err)
}
na := wire.NewNetAddressIPPort(ip, uint16(port), 0)
a.AddAddress(na, na) // XXX use correct src address
return nil
}
// GetBestLocalAddress returns the most appropriate local address to use
// for the given remote address.
func (a *AddrManager) GetBestLocalAddress(remoteAddr *wire.NetAddress) *wire.NetAddress {
a.lamtx.Lock()
defer a.lamtx.Unlock()
bestreach := 0
var bestscore AddressPriority
var bestAddress *wire.NetAddress
for _, la := range a.localAddresses {
reach := getReachabilityFrom(la.na, remoteAddr)
if reach > bestreach ||
(reach == bestreach && la.score > bestscore) {
bestreach = reach
bestscore = la.score
bestAddress = la.na
}
}
if bestAddress != nil {
log.Debugf("Suggesting address %s:%d for %s:%d", bestAddress.IP,
bestAddress.Port, remoteAddr.IP, remoteAddr.Port)
} else {
log.Debugf("No worthy address for %s:%d", remoteAddr.IP,
remoteAddr.Port)
// Send something unroutable if nothing suitable.
var ip net.IP
if !IsIPv4(remoteAddr) && !IsOnionCatTor(remoteAddr) {
ip = net.IPv6zero
} else {
ip = net.IPv4zero
}
services := wire.SFNodeNetwork | wire.SFNodeWitness | wire.SFNodeBloom
bestAddress = wire.NewNetAddressIPPort(ip, 0, services)
}
return bestAddress
}
// TestIPTypes ensures the various functions which determine the type of an IP
// address based on RFCs work as intended.
func TestIPTypes(t *testing.T) {
type ipTest struct {
in wire.NetAddress
rfc1918 bool
rfc2544 bool
rfc3849 bool
rfc3927 bool
rfc3964 bool
rfc4193 bool
rfc4380 bool
rfc4843 bool
rfc4862 bool
rfc5737 bool
rfc6052 bool
rfc6145 bool
rfc6598 bool
local bool
valid bool
routable bool
}
newIPTest := func(ip string, rfc1918, rfc2544, rfc3849, rfc3927, rfc3964,
rfc4193, rfc4380, rfc4843, rfc4862, rfc5737, rfc6052, rfc6145, rfc6598,
local, valid, routable bool) ipTest {
nip := net.ParseIP(ip)
na := *wire.NewNetAddressIPPort(nip, 8333, wire.SFNodeNetwork)
test := ipTest{na, rfc1918, rfc2544, rfc3849, rfc3927, rfc3964, rfc4193, rfc4380,
rfc4843, rfc4862, rfc5737, rfc6052, rfc6145, rfc6598, local, valid, routable}
return test
}
tests := []ipTest{
newIPTest("10.255.255.255", true, false, false, false, false, false,
false, false, false, false, false, false, false, false, true, false),
newIPTest("192.168.0.1", true, false, false, false, false, false,
false, false, false, false, false, false, false, false, true, false),
newIPTest("172.31.255.1", true, false, false, false, false, false,
false, false, false, false, false, false, false, false, true, false),
newIPTest("172.32.1.1", false, false, false, false, false, false, false, false,
false, false, false, false, false, false, true, true),
newIPTest("169.254.250.120", false, false, false, true, false, false,
false, false, false, false, false, false, false, false, true, false),
newIPTest("0.0.0.0", false, false, false, false, false, false, false,
false, false, false, false, false, false, true, false, false),
newIPTest("255.255.255.255", false, false, false, false, false, false,
false, false, false, false, false, false, false, false, false, false),
newIPTest("127.0.0.1", false, false, false, false, false, false,
false, false, false, false, false, false, false, true, true, false),
newIPTest("fd00:dead::1", false, false, false, false, false, true,
false, false, false, false, false, false, false, false, true, false),
newIPTest("2001::1", false, false, false, false, false, false,
true, false, false, false, false, false, false, false, true, true),
newIPTest("2001:10:abcd::1:1", false, false, false, false, false, false,
false, true, false, false, false, false, false, false, true, false),
newIPTest("fe80::1", false, false, false, false, false, false,
false, false, true, false, false, false, false, false, true, false),
newIPTest("fe80:1::1", false, false, false, false, false, false,
false, false, false, false, false, false, false, false, true, true),
newIPTest("64:ff9b::1", false, false, false, false, false, false,
false, false, false, false, true, false, false, false, true, true),
newIPTest("::ffff:abcd:ef12:1", false, false, false, false, false, false,
false, false, false, false, false, false, false, false, true, true),
newIPTest("::1", false, false, false, false, false, false, false, false,
false, false, false, false, false, true, true, false),
newIPTest("198.18.0.1", false, true, false, false, false, false, false,
false, false, false, false, false, false, false, true, false),
newIPTest("100.127.255.1", false, false, false, false, false, false, false,
false, false, false, false, false, true, false, true, false),
newIPTest("203.0.113.1", false, false, false, false, false, false, false,
false, false, false, false, false, false, false, true, false),
}
t.Logf("Running %d tests", len(tests))
for _, test := range tests {
if rv := addrmgr.IsRFC1918(&test.in); rv != test.rfc1918 {
t.Errorf("IsRFC1918 %s\n got: %v want: %v", test.in.IP, rv, test.rfc1918)
}
if rv := addrmgr.IsRFC3849(&test.in); rv != test.rfc3849 {
t.Errorf("IsRFC3849 %s\n got: %v want: %v", test.in.IP, rv, test.rfc3849)
}
if rv := addrmgr.IsRFC3927(&test.in); rv != test.rfc3927 {
t.Errorf("IsRFC3927 %s\n got: %v want: %v", test.in.IP, rv, test.rfc3927)
}
if rv := addrmgr.IsRFC3964(&test.in); rv != test.rfc3964 {
t.Errorf("IsRFC3964 %s\n got: %v want: %v", test.in.IP, rv, test.rfc3964)
}
if rv := addrmgr.IsRFC4193(&test.in); rv != test.rfc4193 {
t.Errorf("IsRFC4193 %s\n got: %v want: %v", test.in.IP, rv, test.rfc4193)
}
if rv := addrmgr.IsRFC4380(&test.in); rv != test.rfc4380 {
t.Errorf("IsRFC4380 %s\n got: %v want: %v", test.in.IP, rv, test.rfc4380)
}
if rv := addrmgr.IsRFC4843(&test.in); rv != test.rfc4843 {
t.Errorf("IsRFC4843 %s\n got: %v want: %v", test.in.IP, rv, test.rfc4843)
}
if rv := addrmgr.IsRFC4862(&test.in); rv != test.rfc4862 {
t.Errorf("IsRFC4862 %s\n got: %v want: %v", test.in.IP, rv, test.rfc4862)
}
if rv := addrmgr.IsRFC6052(&test.in); rv != test.rfc6052 {
t.Errorf("isRFC6052 %s\n got: %v want: %v", test.in.IP, rv, test.rfc6052)
}
if rv := addrmgr.IsRFC6145(&test.in); rv != test.rfc6145 {
t.Errorf("IsRFC1918 %s\n got: %v want: %v", test.in.IP, rv, test.rfc6145)
}
if rv := addrmgr.IsLocal(&test.in); rv != test.local {
t.Errorf("IsLocal %s\n got: %v want: %v", test.in.IP, rv, test.local)
}
if rv := addrmgr.IsValid(&test.in); rv != test.valid {
t.Errorf("IsValid %s\n got: %v want: %v", test.in.IP, rv, test.valid)
}
if rv := addrmgr.IsRoutable(&test.in); rv != test.routable {
t.Errorf("IsRoutable %s\n got: %v want: %v", test.in.IP, rv, test.routable)
}
}
}
func addNaTest(ip string, port uint16, want string) {
nip := net.ParseIP(ip)
na := *wire.NewNetAddressIPPort(nip, port, wire.SFNodeNetwork)
test := naTest{na, want}
naTests = append(naTests, test)
}