Merge bitcoin/bitcoin#27114: p2p: Allow whitelisting manual connections

0a533613fb docs: add release notes for #27114 (brunoerg)
e6b8f19de9 test: add coverage for whitelisting manual connections (brunoerg)
c985eb854c test: add option to speed up tx relay/mempool sync (brunoerg)
66bc6e2d17 Accept "in" and "out" flags to -whitelist to allow whitelisting manual connections (Luke Dashjr)
8e06be347c net_processing: Move extra service flag into InitializeNode (Luke Dashjr)
9133fd69a5 net: Move `NetPermissionFlags::Implicit` verification to `AddWhitelistPermissionFlags` (Luke Dashjr)
2863d7dddb net: store `-whitelist{force}relay` values in `CConnman` (brunoerg)

Pull request description:

  Revives #17167. It allows whitelisting manual connections. Fixes #9923

  Since there are some PRs/issues around this topic, I'll list some motivations/comments for whitelisting outbound connections from them:
  - Speed-up tx relay/mempool sync for testing purposes (my personal motivation for this) - In #26970, theStack pointed out that we whitelist peers to speed up tx relay for fast mempool synchronization, however, since it applies only for inbound connections and considering the topology `node0 <--- node1 <---- node2 <--- ... <-- nodeN`,  if a tx is submitted from any node other than node0, the mempool synchronization can take quite long.
  - https://github.com/bitcoin/bitcoin/pull/29058#issuecomment-1865155764 - "Before enabling -v2transport by default (which I'd image may happen after https://github.com/bitcoin/bitcoin/pull/24748) we could consider a way to force manual connections to be only-v1 or even only-v2 (disabling reconnect-with-v1). A possibility could be through a net permission flag, if https://github.com/bitcoin/bitcoin/pull/27114 makes it in."
  - https://github.com/bitcoin/bitcoin/pull/17167#issuecomment-1168606032 - "This would allow us to use https://github.com/bitcoin/bitcoin/pull/25355 when making outgoing connections to all nodes, except to whitelisted ones for which we would use our persistent I2P address."
  - Force-relay/mempool permissions for a node you intentionally connected to.

ACKs for top commit:
  achow101:
    ACK 0a533613fb
  sr-gi:
    re-ACK [0a53361](0a533613fb)
  pinheadmz:
    ACK 0a533613fb

Tree-SHA512: 97a79bb854110da04540897d2619eda409d829016aafdf1825ab5515334b0b42ef82f33cd41587af235b3af6ddcec3f2905ca038b5ab22e4c8a03d34f27aebe1
This commit is contained in:
Ava Chow
2024-03-12 12:58:50 -04:00
41 changed files with 199 additions and 108 deletions

View File

@@ -3,6 +3,7 @@
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <net_permissions.h>
#include <netbase.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
@@ -31,8 +32,9 @@ FUZZ_TARGET(net_permissions)
}
NetWhitelistPermissions net_whitelist_permissions;
ConnectionDirection connection_direction;
bilingual_str error_net_whitelist_permissions;
if (NetWhitelistPermissions::TryParse(s, net_whitelist_permissions, error_net_whitelist_permissions)) {
if (NetWhitelistPermissions::TryParse(s, net_whitelist_permissions, connection_direction, error_net_whitelist_permissions)) {
(void)NetPermissions::ToStrings(net_whitelist_permissions.m_flags);
(void)NetPermissions::AddFlag(net_whitelist_permissions.m_flags, net_permission_flags);
assert(NetPermissions::HasFlag(net_whitelist_permissions.m_flags, net_permission_flags));

View File

@@ -366,6 +366,7 @@ BOOST_AUTO_TEST_CASE(netpermissions_test)
bilingual_str error;
NetWhitebindPermissions whitebindPermissions;
NetWhitelistPermissions whitelistPermissions;
ConnectionDirection connection_direction;
// Detect invalid white bind
BOOST_CHECK(!NetWhitebindPermissions::TryParse("", whitebindPermissions, error));
@@ -435,24 +436,33 @@ BOOST_AUTO_TEST_CASE(netpermissions_test)
BOOST_CHECK(NetWhitebindPermissions::TryParse(",,@1.2.3.4:32", whitebindPermissions, error));
BOOST_CHECK_EQUAL(whitebindPermissions.m_flags, NetPermissionFlags::None);
BOOST_CHECK(!NetWhitebindPermissions::TryParse("out,forcerelay@1.2.3.4:32", whitebindPermissions, error));
BOOST_CHECK(error.original.find("whitebind may only be used for incoming connections (\"out\" was passed)") != std::string::npos);
// Detect invalid flag
BOOST_CHECK(!NetWhitebindPermissions::TryParse("bloom,forcerelay,oopsie@1.2.3.4:32", whitebindPermissions, error));
BOOST_CHECK(error.original.find("Invalid P2P permission") != std::string::npos);
// Check netmask error
BOOST_CHECK(!NetWhitelistPermissions::TryParse("bloom,forcerelay,noban@1.2.3.4:32", whitelistPermissions, error));
BOOST_CHECK(!NetWhitelistPermissions::TryParse("bloom,forcerelay,noban@1.2.3.4:32", whitelistPermissions, connection_direction, error));
BOOST_CHECK(error.original.find("Invalid netmask specified in -whitelist") != std::string::npos);
// Happy path for whitelist parsing
BOOST_CHECK(NetWhitelistPermissions::TryParse("noban@1.2.3.4", whitelistPermissions, error));
BOOST_CHECK(NetWhitelistPermissions::TryParse("noban@1.2.3.4", whitelistPermissions, connection_direction, error));
BOOST_CHECK_EQUAL(whitelistPermissions.m_flags, NetPermissionFlags::NoBan);
BOOST_CHECK(NetPermissions::HasFlag(whitelistPermissions.m_flags, NetPermissionFlags::NoBan));
BOOST_CHECK(NetWhitelistPermissions::TryParse("bloom,forcerelay,noban,relay@1.2.3.4/32", whitelistPermissions, error));
BOOST_CHECK(NetWhitelistPermissions::TryParse("bloom,forcerelay,noban,relay@1.2.3.4/32", whitelistPermissions, connection_direction, error));
BOOST_CHECK_EQUAL(whitelistPermissions.m_flags, NetPermissionFlags::BloomFilter | NetPermissionFlags::ForceRelay | NetPermissionFlags::NoBan | NetPermissionFlags::Relay);
BOOST_CHECK(error.empty());
BOOST_CHECK_EQUAL(whitelistPermissions.m_subnet.ToString(), "1.2.3.4/32");
BOOST_CHECK(NetWhitelistPermissions::TryParse("bloom,forcerelay,noban,relay,mempool@1.2.3.4/32", whitelistPermissions, error));
BOOST_CHECK(NetWhitelistPermissions::TryParse("bloom,forcerelay,noban,relay,mempool@1.2.3.4/32", whitelistPermissions, connection_direction, error));
BOOST_CHECK(NetWhitelistPermissions::TryParse("in,relay@1.2.3.4", whitelistPermissions, connection_direction, error));
BOOST_CHECK_EQUAL(connection_direction, ConnectionDirection::In);
BOOST_CHECK(NetWhitelistPermissions::TryParse("out,bloom@1.2.3.4", whitelistPermissions, connection_direction, error));
BOOST_CHECK_EQUAL(connection_direction, ConnectionDirection::Out);
BOOST_CHECK(NetWhitelistPermissions::TryParse("in,out,bloom@1.2.3.4", whitelistPermissions, connection_direction, error));
BOOST_CHECK_EQUAL(connection_direction, ConnectionDirection::Both);
const auto strings = NetPermissions::ToStrings(NetPermissionFlags::All);
BOOST_CHECK_EQUAL(strings.size(), 7U);