diff options
| -rw-r--r-- | src/addrman.cpp | 10 | ||||
| -rw-r--r-- | src/addrman.h | 11 | ||||
| -rw-r--r-- | src/init.cpp | 48 | ||||
| -rw-r--r-- | src/netaddress.cpp | 7 | ||||
| -rw-r--r-- | src/netaddress.h | 2 | ||||
| -rw-r--r-- | src/rpc/net.cpp | 3 | ||||
| -rwxr-xr-x | test/functional/feature_asmap.py | 106 | ||||
| -rwxr-xr-x | test/functional/test_runner.py | 1 |
8 files changed, 153 insertions, 35 deletions
diff --git a/src/addrman.cpp b/src/addrman.cpp index 121ae4bf7e..2f8a3a0bd5 100644 --- a/src/addrman.cpp +++ b/src/addrman.cpp @@ -6,8 +6,8 @@ #include <addrman.h> #include <hash.h> -#include <serialize.h> #include <logging.h> +#include <serialize.h> int CAddrInfo::GetTriedBucket(const uint256& nKey, const std::vector<bool> &asmap) const { @@ -15,7 +15,7 @@ int CAddrInfo::GetTriedBucket(const uint256& nKey, const std::vector<bool> &asma uint64_t hash2 = (CHashWriter(SER_GETHASH, 0) << nKey << GetGroup(asmap) << (hash1 % ADDRMAN_TRIED_BUCKETS_PER_GROUP)).GetCheapHash(); int tried_bucket = hash2 % ADDRMAN_TRIED_BUCKET_COUNT; uint32_t mapped_as = GetMappedAS(asmap); - LogPrint(BCLog::NET, "IP %s mapped to AS%i belongs to tried bucket %i.\n", ToStringIP(), mapped_as, tried_bucket); + LogPrint(BCLog::NET, "IP %s mapped to AS%i belongs to tried bucket %i\n", ToStringIP(), mapped_as, tried_bucket); return tried_bucket; } @@ -26,7 +26,7 @@ int CAddrInfo::GetNewBucket(const uint256& nKey, const CNetAddr& src, const std: uint64_t hash2 = (CHashWriter(SER_GETHASH, 0) << nKey << vchSourceGroupKey << (hash1 % ADDRMAN_NEW_BUCKETS_PER_SOURCE_GROUP)).GetCheapHash(); int new_bucket = hash2 % ADDRMAN_NEW_BUCKET_COUNT; uint32_t mapped_as = GetMappedAS(asmap); - LogPrint(BCLog::NET, "IP %s mapped to AS%i belongs to new bucket %i.\n", ToStringIP(), mapped_as, new_bucket); + LogPrint(BCLog::NET, "IP %s mapped to AS%i belongs to new bucket %i\n", ToStringIP(), mapped_as, new_bucket); return new_bucket; } @@ -630,12 +630,12 @@ std::vector<bool> CAddrMan::DecodeAsmap(fs::path path) FILE *filestr = fsbridge::fopen(path, "rb"); CAutoFile file(filestr, SER_DISK, CLIENT_VERSION); if (file.IsNull()) { - LogPrintf("Failed to open asmap file from disk.\n"); + LogPrintf("Failed to open asmap file from disk\n"); return bits; } fseek(filestr, 0, SEEK_END); int length = ftell(filestr); - LogPrintf("Opened asmap file %s (%d bytes) from disk.\n", path, length); + LogPrintf("Opened asmap file %s (%d bytes) from disk\n", path, length); fseek(filestr, 0, SEEK_SET); char cur_byte; for (int i = 0; i < length; ++i) { diff --git a/src/addrman.h b/src/addrman.h index 5901611bee..8e82020df0 100644 --- a/src/addrman.h +++ b/src/addrman.h @@ -6,23 +6,22 @@ #ifndef BITCOIN_ADDRMAN_H #define BITCOIN_ADDRMAN_H +#include <clientversion.h> #include <netaddress.h> #include <protocol.h> #include <random.h> #include <sync.h> #include <timedata.h> #include <util/system.h> -#include <clientversion.h> +#include <fs.h> +#include <hash.h> +#include <iostream> #include <map> #include <set> #include <stdint.h> -#include <vector> -#include <iostream> #include <streams.h> -#include <fs.h> -#include <hash.h> - +#include <vector> /** * Extended statistics about a CAddress diff --git a/src/init.cpp b/src/init.cpp index 1c9faec803..14d489617c 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -47,11 +47,11 @@ #include <txdb.h> #include <txmempool.h> #include <ui_interface.h> +#include <util/asmap.h> #include <util/moneystr.h> #include <util/system.h> #include <util/threadnames.h> #include <util/translation.h> -#include <util/asmap.h> #include <validation.h> #include <hash.h> @@ -408,6 +408,7 @@ void SetupServerArgs() ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); gArgs.AddArg("-addnode=<ip>", "Add a node to connect to and attempt to keep the connection open (see the `addnode` RPC command help for more info). This option can be specified multiple times to add multiple nodes.", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::CONNECTION); + gArgs.AddArg("-asmap=<file>", strprintf("Specify asn mapping used for bucketing of the peers (default: %s). Relative paths will be prefixed by the net-specific datadir location.", DEFAULT_ASMAP_FILENAME), ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION); gArgs.AddArg("-banscore=<n>", strprintf("Threshold for disconnecting misbehaving peers (default: %u)", DEFAULT_BANSCORE_THRESHOLD), ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION); gArgs.AddArg("-bantime=<n>", strprintf("Number of seconds to keep misbehaving peers from reconnecting (default: %u)", DEFAULT_MISBEHAVING_BANTIME), ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION); gArgs.AddArg("-bind=<addr>", "Bind to given address and always listen on it. Use [host]:port notation for IPv6", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::CONNECTION); @@ -436,7 +437,6 @@ void SetupServerArgs() gArgs.AddArg("-peertimeout=<n>", strprintf("Specify p2p connection timeout in seconds. This option determines the amount of time a peer may be inactive before the connection to it is dropped. (minimum: 1, default: %d)", DEFAULT_PEER_CONNECT_TIMEOUT), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CONNECTION); gArgs.AddArg("-torcontrol=<ip>:<port>", strprintf("Tor control port to use if onion listening enabled (default: %s)", DEFAULT_TOR_CONTROL), ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION); gArgs.AddArg("-torpassword=<pass>", "Tor control port password (default: empty)", ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE, OptionsCategory::CONNECTION); - gArgs.AddArg("-asmap=<file>", "Specify asn mapping used for bucketing of the peers. Path should be relative to the -datadir path.", ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION); #ifdef USE_UPNP #if USE_UPNP gArgs.AddArg("-upnp", "Use UPnP to map the listening port (default: 1 when listening and no -proxy)", ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION); @@ -1418,6 +1418,31 @@ bool AppInitMain(NodeContext& node) return InitError(ResolveErrMsg("externalip", strAddr)); } + // Read asmap file if configured + if (gArgs.IsArgSet("-asmap")) { + fs::path asmap_path = fs::path(gArgs.GetArg("-asmap", "")); + if (asmap_path.empty()) { + asmap_path = DEFAULT_ASMAP_FILENAME; + } + if (!asmap_path.is_absolute()) { + asmap_path = GetDataDir() / asmap_path; + } + if (!fs::exists(asmap_path)) { + InitError(strprintf(_("Could not find asmap file %s").translated, asmap_path)); + return false; + } + std::vector<bool> asmap = CAddrMan::DecodeAsmap(asmap_path); + if (asmap.size() == 0) { + InitError(strprintf(_("Could not parse asmap file %s").translated, asmap_path)); + return false; + } + const uint256 asmap_version = SerializeHash(asmap); + node.connman->SetAsmap(std::move(asmap)); + LogPrintf("Using asmap version %s for IP bucketing\n", asmap_version.ToString()); + } else { + LogPrintf("Using /16 prefix for IP bucketing\n"); + } + #if ENABLE_ZMQ g_zmq_notification_interface = CZMQNotificationInterface::Create(); @@ -1825,25 +1850,6 @@ bool AppInitMain(NodeContext& node) return false; } - // Read asmap file if configured - if (gArgs.IsArgSet("-asmap")) { - std::string asmap_file = gArgs.GetArg("-asmap", ""); - if (asmap_file.empty()) { - asmap_file = DEFAULT_ASMAP_FILENAME; - } - const fs::path asmap_path = GetDataDir() / asmap_file; - std::vector<bool> asmap = CAddrMan::DecodeAsmap(asmap_path); - if (asmap.size() == 0) { - InitError(strprintf(_("Could not find or parse specified asmap: '%s'").translated, asmap_path)); - return false; - } - const uint256 asmap_version = SerializeHash(asmap); - node.connman->SetAsmap(std::move(asmap)); - LogPrintf("Using asmap version %s for IP bucketing.\n", asmap_version.ToString()); - } else { - LogPrintf("Using /16 prefix for IP bucketing.\n"); - } - // ********************************************************* Step 13: finished SetRPCWarmupFinished(); diff --git a/src/netaddress.cpp b/src/netaddress.cpp index 1cac57a817..228caf74a9 100644 --- a/src/netaddress.cpp +++ b/src/netaddress.cpp @@ -210,6 +210,11 @@ bool CNetAddr::IsRFC7343() const return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x00 && (GetByte(12) & 0xF0) == 0x20); } +bool CNetAddr::IsHeNet() const +{ + return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x04 && GetByte(12) == 0x70); +} + /** * @returns Whether or not this is a dummy address that maps an onion address * into IPv6. @@ -516,7 +521,7 @@ std::vector<unsigned char> CNetAddr::GetGroup(const std::vector<bool> &asmap) co } else if (IsTor()) { nStartByte = 6; nBits = 4; - } else if (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x04 && GetByte(12) == 0x70) { + } else if (IsHeNet()) { // for he.net, use /36 groups nBits = 36; } else { diff --git a/src/netaddress.h b/src/netaddress.h index b300b709f3..b7381c1eb4 100644 --- a/src/netaddress.h +++ b/src/netaddress.h @@ -45,7 +45,6 @@ class CNetAddr */ void SetRaw(Network network, const uint8_t *data); - public: bool SetInternal(const std::string& name); bool SetSpecial(const std::string &strName); // for Tor addresses @@ -66,6 +65,7 @@ class CNetAddr bool IsRFC4862() const; // IPv6 autoconfig (FE80::/64) bool IsRFC6052() const; // IPv6 well-known prefix for IPv4-embedded address (64:FF9B::/96) bool IsRFC6145() const; // IPv6 IPv4-translated address (::FFFF:0:0:0/96) (actually defined in RFC2765) + bool IsHeNet() const; // IPv6 Hurricane Electric - https://he.net (2001:0470::/36) bool IsTor() const; bool IsLocal() const; bool IsRoutable() const; diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp index 482c689285..085921095e 100644 --- a/src/rpc/net.cpp +++ b/src/rpc/net.cpp @@ -86,7 +86,8 @@ static UniValue getpeerinfo(const JSONRPCRequest& request) {RPCResult::Type::STR, "addr", "(host:port) The IP address and port of the peer"}, {RPCResult::Type::STR, "addrbind", "(ip:port) Bind address of the connection to the peer"}, {RPCResult::Type::STR, "addrlocal", "(ip:port) Local address as reported by the peer"}, - {RPCResult::Type::STR, "mapped_as", "The AS in the BGP route to the peer used for diversifying peer selection"}, + {RPCResult::Type::NUM, "mapped_as", "The AS in the BGP route to the peer used for diversifying\n" + "peer selection (only available if the asmap config flag is set)"}, {RPCResult::Type::STR_HEX, "services", "The services offered"}, {RPCResult::Type::ARR, "servicesnames", "the services offered, in human-readable form", { diff --git a/test/functional/feature_asmap.py b/test/functional/feature_asmap.py new file mode 100755 index 0000000000..2c6553fbe2 --- /dev/null +++ b/test/functional/feature_asmap.py @@ -0,0 +1,106 @@ +#!/usr/bin/env python3 +# Copyright (c) 2020 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. +"""Test asmap config argument for ASN-based IP bucketing. + +Verify node behaviour and debug log when launching bitcoind in these cases: + +1. `bitcoind` with no -asmap arg, using /16 prefix for IP bucketing + +2. `bitcoind -asmap=<absolute path>`, using the unit test skeleton asmap + +3. `bitcoind -asmap=<relative path>`, using the unit test skeleton asmap + +4. `bitcoind -asmap/-asmap=` with no file specified, using the default asmap + +5. `bitcoind -asmap` with no file specified and a missing default asmap file + +6. `bitcoind -asmap` with an empty (unparsable) default asmap file + +The tests are order-independent. + +""" +import os +import shutil + +from test_framework.test_framework import BitcoinTestFramework + +DEFAULT_ASMAP_FILENAME = 'ip_asn.map' # defined in src/init.cpp +ASMAP = '../../src/test/data/asmap.raw' # path to unit test skeleton asmap +VERSION = 'fec61fa21a9f46f3b17bdcd660d7f4cd90b966aad3aec593c99b35f0aca15853' + +def expected_messages(filename): + return ['Opened asmap file "{}" (59 bytes) from disk'.format(filename), + 'Using asmap version {} for IP bucketing'.format(VERSION)] + +class AsmapTest(BitcoinTestFramework): + def set_test_params(self): + self.setup_clean_chain = False + self.num_nodes = 1 + + def test_without_asmap_arg(self): + self.log.info('Test bitcoind with no -asmap arg passed') + self.stop_node(0) + with self.node.assert_debug_log(['Using /16 prefix for IP bucketing']): + self.start_node(0) + + def test_asmap_with_absolute_path(self): + self.log.info('Test bitcoind -asmap=<absolute path>') + self.stop_node(0) + filename = os.path.join(self.datadir, 'my-map-file.map') + shutil.copyfile(self.asmap_raw, filename) + with self.node.assert_debug_log(expected_messages(filename)): + self.start_node(0, ['-asmap={}'.format(filename)]) + os.remove(filename) + + def test_asmap_with_relative_path(self): + self.log.info('Test bitcoind -asmap=<relative path>') + self.stop_node(0) + name = 'ASN_map' + filename = os.path.join(self.datadir, name) + shutil.copyfile(self.asmap_raw, filename) + with self.node.assert_debug_log(expected_messages(filename)): + self.start_node(0, ['-asmap={}'.format(name)]) + os.remove(filename) + + def test_default_asmap(self): + shutil.copyfile(self.asmap_raw, self.default_asmap) + for arg in ['-asmap', '-asmap=']: + self.log.info('Test bitcoind {} (using default map file)'.format(arg)) + self.stop_node(0) + with self.node.assert_debug_log(expected_messages(self.default_asmap)): + self.start_node(0, [arg]) + os.remove(self.default_asmap) + + def test_default_asmap_with_missing_file(self): + self.log.info('Test bitcoind -asmap with missing default map file') + self.stop_node(0) + msg = "Error: Could not find asmap file \"{}\"".format(self.default_asmap) + self.node.assert_start_raises_init_error(extra_args=['-asmap'], expected_msg=msg) + + def test_empty_asmap(self): + self.log.info('Test bitcoind -asmap with empty map file') + self.stop_node(0) + with open(self.default_asmap, "w", encoding="utf-8") as f: + f.write("") + msg = "Error: Could not parse asmap file \"{}\"".format(self.default_asmap) + self.node.assert_start_raises_init_error(extra_args=['-asmap'], expected_msg=msg) + os.remove(self.default_asmap) + + def run_test(self): + self.node = self.nodes[0] + self.datadir = os.path.join(self.node.datadir, self.chain) + self.default_asmap = os.path.join(self.datadir, DEFAULT_ASMAP_FILENAME) + self.asmap_raw = os.path.join(os.path.dirname(os.path.realpath(__file__)), ASMAP) + + self.test_without_asmap_arg() + self.test_asmap_with_absolute_path() + self.test_asmap_with_relative_path() + self.test_default_asmap() + self.test_default_asmap_with_missing_file() + self.test_empty_asmap() + + +if __name__ == '__main__': + AsmapTest().main() diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py index 06d939afb7..2036d20852 100755 --- a/test/functional/test_runner.py +++ b/test/functional/test_runner.py @@ -206,6 +206,7 @@ BASE_SCRIPTS = [ 'p2p_dos_header_tree.py', 'p2p_unrequested_blocks.py', 'feature_includeconf.py', + 'feature_asmap.py', 'rpc_deriveaddresses.py', 'rpc_deriveaddresses.py --usecli', 'rpc_scantxoutset.py', |