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Add more reserved IP space to address manager.

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This commit is contained in:
David Hill 2014-12-16 13:02:39 -05:00
parent 1d0c09a852
commit bc46f8273c
3 changed files with 148 additions and 94 deletions
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47
addrmgr/network.go
View file

@ -20,6 +20,10 @@ var (
ipNet("192.168.0.0", 16, 32), ipNet("192.168.0.0", 16, 32),
} }
// rfc2544Net specifies the the IPv4 block as defined by RFC2544
// (198.18.0.0/15)
rfc2544Net = ipNet("198.18.0.0", 15, 32)
// rfc3849Net specifies the IPv6 documentation address block as defined // rfc3849Net specifies the IPv6 documentation address block as defined
// by RFC3849 (2001:DB8::/32). // by RFC3849 (2001:DB8::/32).
rfc3849Net = ipNet("2001:DB8::", 32, 128) rfc3849Net = ipNet("2001:DB8::", 32, 128)
@ -48,6 +52,14 @@ var (
// address block as defined by RFC4862 (FE80::/64). // address block as defined by RFC4862 (FE80::/64).
rfc4862Net = ipNet("FE80::", 64, 128) rfc4862Net = ipNet("FE80::", 64, 128)
// rfc5737Net specifies the IPv4 documentation address blocks as defined
// by RFC5737 (192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24)
rfc5737Net = []net.IPNet{
ipNet("192.0.2.0", 24, 32),
ipNet("198.51.100.0", 24, 32),
ipNet("203.0.113.0", 24, 32),
}
// rfc6052Net specifies the IPv6 well-known prefix address block as // rfc6052Net specifies the IPv6 well-known prefix address block as
// defined by RFC6052 (64:FF9B::/96). // defined by RFC6052 (64:FF9B::/96).
rfc6052Net = ipNet("64:FF9B::", 96, 128) rfc6052Net = ipNet("64:FF9B::", 96, 128)
@ -56,6 +68,9 @@ var (
// defined by RFC6145 (::FFFF:0:0:0/96). // defined by RFC6145 (::FFFF:0:0:0/96).
rfc6145Net = ipNet("::FFFF:0:0:0", 96, 128) rfc6145Net = ipNet("::FFFF:0:0:0", 96, 128)
// rfc6598Net specifies the IPv4 block as defined by RFC6598 (100.64.0.0/10)
rfc6598Net = ipNet("100.64.0.0", 10, 32)
// onionCatNet defines the IPv6 address block used to support Tor. // onionCatNet defines the IPv6 address block used to support Tor.
// bitcoind encodes a .onion address as a 16 byte number by decoding the // bitcoind encodes a .onion address as a 16 byte number by decoding the
// address prior to the .onion (i.e. the key hash) base32 into a ten // address prior to the .onion (i.e. the key hash) base32 into a ten
@ -114,6 +129,12 @@ func IsRFC1918(na *btcwire.NetAddress) bool {
return false return false
} }
// IsRFC2544 returns whether or not the passed address is part of the IPv4
// address space as defined by RFC2544 (198.18.0.0/15)
func IsRFC2544(na *btcwire.NetAddress) bool {
return rfc2544Net.Contains(na.IP)
}
// IsRFC3849 returns whether or not the passed address is part of the IPv6 // IsRFC3849 returns whether or not the passed address is part of the IPv6
// documentation range as defined by RFC3849 (2001:DB8::/32). // documentation range as defined by RFC3849 (2001:DB8::/32).
func IsRFC3849(na *btcwire.NetAddress) bool { func IsRFC3849(na *btcwire.NetAddress) bool {
@ -156,18 +177,37 @@ func IsRFC4862(na *btcwire.NetAddress) bool {
return rfc4862Net.Contains(na.IP) return rfc4862Net.Contains(na.IP)
} }
// IsRFC5737 returns whether or not the passed address is part of the IPv4
// documentation address space as defined by RFC5737 (192.0.2.0/24,
// 198.51.100.0/24, 203.0.113.0/24)
func IsRFC5737(na *btcwire.NetAddress) bool {
for _, rfc := range rfc5737Net {
if rfc.Contains(na.IP) {
return true
}
}
return false
}
// IsRFC6052 returns whether or not the passed address is part of the IPv6 // IsRFC6052 returns whether or not the passed address is part of the IPv6
// well-known prefix range as defined by RFC6052 (64:FF9B::/96). // well-known prefix range as defined by RFC6052 (64:FF9B::/96).
func IsRFC6052(na *btcwire.NetAddress) bool { func IsRFC6052(na *btcwire.NetAddress) bool {
return rfc6052Net.Contains(na.IP) return rfc6052Net.Contains(na.IP)
} }
// IsRFC6145 returns whether or not the passed address is part of the IPv6 to // IsRFC6145 returns whether or not the passed address is part of the IPv6 to
// IPv4 translated address range as defined by RFC6145 (::FFFF:0:0:0/96). // IPv4 translated address range as defined by RFC6145 (::FFFF:0:0:0/96).
func IsRFC6145(na *btcwire.NetAddress) bool { func IsRFC6145(na *btcwire.NetAddress) bool {
return rfc6145Net.Contains(na.IP) return rfc6145Net.Contains(na.IP)
} }
// IsRFC6598 returns whether or not the passed address is part of the IPv4
// shared address space specified by RFC6598 (100.64.0.0/10)
func IsRFC6598(na *btcwire.NetAddress) bool {
return rfc6598Net.Contains(na.IP)
}
// IsValid returns whether or not the passed address is valid. The address is // IsValid returns whether or not the passed address is valid. The address is
// considered invalid under the following circumstances: // considered invalid under the following circumstances:
// IPv4: It is either a zero or all bits set address. // IPv4: It is either a zero or all bits set address.
@ -183,8 +223,9 @@ func IsValid(na *btcwire.NetAddress) bool {
// the public internet. This is true as long as the address is valid and is not // the public internet. This is true as long as the address is valid and is not
// in any reserved ranges. // in any reserved ranges.
func IsRoutable(na *btcwire.NetAddress) bool { func IsRoutable(na *btcwire.NetAddress) bool {
return IsValid(na) && !(IsRFC1918(na) || IsRFC3927(na) || return IsValid(na) && !(IsRFC1918(na) || IsRFC2544(na) ||
IsRFC4862(na) || IsRFC3849(na) || IsRFC4843(na) || IsRFC3927(na) || IsRFC4862(na) || IsRFC3849(na) ||
IsRFC4843(na) || IsRFC5737(na) || IsRFC6598(na) ||
IsLocal(na) || (IsRFC4193(na) && !IsOnionCatTor(na))) IsLocal(na) || (IsRFC4193(na) && !IsOnionCatTor(na)))
} }

79
addrmgr/network_test.go
View file

@ -19,6 +19,7 @@ func TestIPTypes(t *testing.T) {
type ipTest struct { type ipTest struct {
in btcwire.NetAddress in btcwire.NetAddress
rfc1918 bool rfc1918 bool
rfc2544 bool
rfc3849 bool rfc3849 bool
rfc3927 bool rfc3927 bool
rfc3964 bool rfc3964 bool
@ -26,16 +27,18 @@ func TestIPTypes(t *testing.T) {
rfc4380 bool rfc4380 bool
rfc4843 bool rfc4843 bool
rfc4862 bool rfc4862 bool
rfc5737 bool
rfc6052 bool rfc6052 bool
rfc6145 bool rfc6145 bool
rfc6598 bool
local bool local bool
valid bool valid bool
routable bool routable bool
} }
newIPTest := func(ip string, rfc1918, rfc3849, rfc3927, rfc3964, newIPTest := func(ip string, rfc1918, rfc2544, rfc3849, rfc3927, rfc3964,
rfc4193, rfc4380, rfc4843, rfc4862, rfc6052, rfc6145, local, rfc4193, rfc4380, rfc4843, rfc4862, rfc5737, rfc6052, rfc6145, rfc6598,
valid, routable bool) ipTest { local, valid, routable bool) ipTest {
nip := net.ParseIP(ip) nip := net.ParseIP(ip)
na := btcwire.NetAddress{ na := btcwire.NetAddress{
Timestamp: time.Now(), Timestamp: time.Now(),
@ -43,44 +46,50 @@ func TestIPTypes(t *testing.T) {
IP: nip, IP: nip,
Port: 8333, Port: 8333,
} }
test := ipTest{na, rfc1918, rfc3849, rfc3927, rfc3964, rfc4193, rfc4380, test := ipTest{na, rfc1918, rfc2544, rfc3849, rfc3927, rfc3964, rfc4193, rfc4380,
rfc4843, rfc4862, rfc6052, rfc6145, local, valid, routable} rfc4843, rfc4862, rfc5737, rfc6052, rfc6145, rfc6598, local, valid, routable}
return test return test
} }
tests := []ipTest{ tests := []ipTest{
newIPTest("10.255.255.255", true, false, false, false, false, newIPTest("10.255.255.255", true, false, false, false, false, false,
false, false, false, false, false, false, true, false), false, false, false, false, false, false, false, false, true, false),
newIPTest("192.168.0.1", true, false, false, false, false, newIPTest("192.168.0.1", true, false, false, false, false, false,
false, false, false, false, false, false, true, false), false, false, false, false, false, false, false, false, true, false),
newIPTest("172.31.255.1", true, false, false, false, false, newIPTest("172.31.255.1", true, false, false, false, false, false,
false, false, false, false, false, false, true, false), false, false, false, false, false, false, false, false, true, false),
newIPTest("172.32.1.1", false, false, false, false, false, newIPTest("172.32.1.1", false, false, false, false, false, false, false, false,
false, false, false, false, false, false, true, true), false, false, false, false, false, false, true, true),
newIPTest("169.254.250.120", false, false, true, false, false, newIPTest("169.254.250.120", false, false, false, true, false, false,
false, false, false, false, false, false, true, false), false, false, false, false, false, false, false, false, true, false),
newIPTest("0.0.0.0", false, false, false, false, false, false, newIPTest("0.0.0.0", false, false, false, false, false, false, false,
false, false, false, false, true, false, false), false, false, false, false, false, false, true, false, false),
newIPTest("255.255.255.255", false, false, false, false, false, newIPTest("255.255.255.255", false, false, false, false, false, false,
false, false, 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, newIPTest("127.0.0.1", false, false, false, false, false, false,
false, false, false, false, false, true, true, false), false, false, false, false, false, false, false, true, true, false),
newIPTest("fd00:dead::1", false, false, false, false, true, newIPTest("fd00:dead::1", false, false, false, false, false, true,
false, false, false, false, false, false, true, false), false, false, false, false, false, false, false, false, true, false),
newIPTest("2001::1", false, false, false, false, false, newIPTest("2001::1", false, false, false, false, false, false,
true, false, false, false, false, false, true, true), true, false, false, false, false, false, false, false, true, true),
newIPTest("2001:10:abcd::1:1", false, false, false, false, false, newIPTest("2001:10:abcd::1:1", false, false, false, false, false, false,
false, true, false, false, false, false, true, false), false, true, false, false, false, false, false, false, true, false),
newIPTest("fe80::1", false, false, false, false, false, newIPTest("fe80::1", false, false, false, false, false, false,
false, false, true, false, false, false, true, false), false, false, true, false, false, false, false, false, true, false),
newIPTest("fe80:1::1", false, false, false, false, false, newIPTest("fe80:1::1", false, false, false, false, false, false,
false, false, false, false, false, false, true, true), false, false, false, false, false, false, false, false, true, true),
newIPTest("64:ff9b::1", false, false, false, false, false, newIPTest("64:ff9b::1", false, false, false, false, false, false,
false, false, false, true, false, false, true, true), false, false, false, false, true, false, false, false, true, true),
newIPTest("::ffff:abcd:ef12:1", false, false, false, false, false, newIPTest("::ffff:abcd:ef12:1", false, false, false, false, false, false,
false, false, false, false, false, false, true, true), false, false, false, false, false, false, false, false, true, true),
newIPTest("::1", false, false, false, false, false, newIPTest("::1", false, false, false, false, false, false, false, false,
false, false, false, false, false, true, true, 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)) t.Logf("Running %d tests", len(tests))

116
addrmgr/test_coverage.txt
View file

@ -1,58 +1,62 @@
github.com/conformal/btcd/addrmgr/network.go GroupKey 100.00% (23/23) github.com/conformal/btcd/addrmgr/network.go GroupKey 100.00% (23/23)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.reset 100.00% (6/6) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.reset 100.00% (6/6)
github.com/conformal/btcd/addrmgr/network.go IsRFC1918 100.00% (4/4) github.com/conformal/btcd/addrmgr/network.go IsRFC5737 100.00% (4/4)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.NumAddresses 100.00% (3/3) github.com/conformal/btcd/addrmgr/network.go IsRFC1918 100.00% (4/4)
github.com/conformal/btcd/addrmgr/addrmanager.go NetAddressKey 100.00% (3/3) github.com/conformal/btcd/addrmgr/addrmanager.go New 100.00% (3/3)
github.com/conformal/btcd/addrmgr/addrmanager.go New 100.00% (3/3) github.com/conformal/btcd/addrmgr/addrmanager.go NetAddressKey 100.00% (2/2)
github.com/conformal/btcd/addrmgr/network.go IsRFC4193 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC4862 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC3964 100.00% (1/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.numAddresses 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC3927 100.00% (1/1) github.com/conformal/btcd/addrmgr/log.go init 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC3849 100.00% (1/1) github.com/conformal/btcd/addrmgr/log.go DisableLog 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC4843 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go ipNet 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsOnionCatTor 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsIPv4 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRoutable 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsLocal 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsLocal 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsOnionCatTor 100.00% (1/1)
github.com/conformal/btcd/addrmgr/log.go init 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC2544 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsValid 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC3849 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC6145 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC3927 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC6052 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC3964 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC4862 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC4193 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsRFC4380 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC4380 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go IsIPv4 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC4843 100.00% (1/1)
github.com/conformal/btcd/addrmgr/network.go ipNet 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC6052 100.00% (1/1)
github.com/conformal/btcd/addrmgr/log.go DisableLog 100.00% (1/1) github.com/conformal/btcd/addrmgr/network.go IsRFC6145 100.00% (1/1)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.GetBestLocalAddress 94.74% (18/19) github.com/conformal/btcd/addrmgr/network.go IsRFC6598 100.00% (1/1)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddLocalAddress 90.91% (10/11) github.com/conformal/btcd/addrmgr/network.go IsValid 100.00% (1/1)
github.com/conformal/btcd/addrmgr/addrmanager.go getReachabilityFrom 51.52% (17/33) github.com/conformal/btcd/addrmgr/network.go IsRoutable 100.00% (1/1)
github.com/conformal/btcd/addrmgr/addrmanager.go ipString 50.00% (2/4) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.GetBestLocalAddress 94.74% (18/19)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.GetAddress 4.65% (2/43) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddLocalAddress 90.91% (10/11)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.deserializePeers 0.00% (0/50) github.com/conformal/btcd/addrmgr/addrmanager.go getReachabilityFrom 51.52% (17/33)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Good 0.00% (0/44) github.com/conformal/btcd/addrmgr/addrmanager.go ipString 50.00% (2/4)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.savePeers 0.00% (0/41) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.GetAddress 9.30% (4/43)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.updateAddress 0.00% (0/32) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.deserializePeers 0.00% (0/50)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.expireNew 0.00% (0/21) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Good 0.00% (0/44)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddressCache 0.00% (0/16) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.savePeers 0.00% (0/39)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddAddressByIP 0.00% (0/16) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.updateAddress 0.00% (0/30)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.getNewBucket 0.00% (0/15) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.expireNew 0.00% (0/22)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.getTriedBucket 0.00% (0/14) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddressCache 0.00% (0/16)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.HostToNetAddress 0.00% (0/14) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.HostToNetAddress 0.00% (0/15)
github.com/conformal/btcd/addrmgr/addrmanager.go chance 0.00% (0/13) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.getNewBucket 0.00% (0/15)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.loadPeers 0.00% (0/13) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddAddressByIP 0.00% (0/14)
github.com/conformal/btcd/addrmgr/addrmanager.go bad 0.00% (0/11) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.getTriedBucket 0.00% (0/14)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Connected 0.00% (0/10) github.com/conformal/btcd/addrmgr/knownaddress.go knownAddress.chance 0.00% (0/13)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.addressHandler 0.00% (0/9) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.loadPeers 0.00% (0/11)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.pickTried 0.00% (0/8) github.com/conformal/btcd/addrmgr/knownaddress.go knownAddress.isBad 0.00% (0/11)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.DeserializeNetAddress 0.00% (0/7) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Connected 0.00% (0/10)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Attempt 0.00% (0/7) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.addressHandler 0.00% (0/9)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Stop 0.00% (0/7) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.pickTried 0.00% (0/8)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Start 0.00% (0/6) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.DeserializeNetAddress 0.00% (0/7)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddAddresses 0.00% (0/2) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Stop 0.00% (0/7)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.NeedMoreAddresses 0.00% (0/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Attempt 0.00% (0/7)
github.com/conformal/btcd/addrmgr/log.go UseLogger 0.00% (0/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.Start 0.00% (0/6)
github.com/conformal/btcd/addrmgr/addrmanager.go knownAddress.LastAttempt 0.00% (0/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddAddresses 0.00% (0/4)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.find 0.00% (0/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.NeedMoreAddresses 0.00% (0/3)
github.com/conformal/btcd/addrmgr/addrmanager.go knownAddress.NetAddress 0.00% (0/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.NumAddresses 0.00% (0/3)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddAddress 0.00% (0/1) github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.AddAddress 0.00% (0/3)
github.com/conformal/btcd/addrmgr --------------------------------- 20.34% (108/531) github.com/conformal/btcd/addrmgr/knownaddress.go knownAddress.LastAttempt 0.00% (0/1)
github.com/conformal/btcd/addrmgr/knownaddress.go knownAddress.NetAddress 0.00% (0/1)
github.com/conformal/btcd/addrmgr/addrmanager.go AddrManager.find 0.00% (0/1)
github.com/conformal/btcd/addrmgr/log.go UseLogger 0.00% (0/1)
github.com/conformal/btcd/addrmgr --------------------------------- 21.04% (113/537)