From 94d335da7f8232bc653c9b08b0a33b517b4c98ad Mon Sep 17 00:00:00 2001 From: Vasil Dimov Date: Mon, 4 Jan 2021 18:37:52 +0100 Subject: net: allow CSubNet of non-IP networks Allow creation of valid `CSubNet` objects of non-IP networks and only match the single address they were created from (like /32 for IPv4 or /128 for IPv6). This fixes a deficiency in `CConnman::DisconnectNode(const CNetAddr& addr)` and in `BanMan` which assume that creating a subnet from any address using the `CSubNet(CNetAddr)` constructor would later match that address only. Before this change a non-IP subnet would be invalid and would not match any address. --- src/test/netbase_tests.cpp | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) (limited to 'src/test/netbase_tests.cpp') diff --git a/src/test/netbase_tests.cpp b/src/test/netbase_tests.cpp index ac4db3a5b6..66ad7bb5ea 100644 --- a/src/test/netbase_tests.cpp +++ b/src/test/netbase_tests.cpp @@ -226,8 +226,22 @@ BOOST_AUTO_TEST_CASE(subnet_test) // IPv4 address with IPv6 netmask or the other way around. BOOST_CHECK(!CSubNet(ResolveIP("1.1.1.1"), ResolveIP("ffff::")).IsValid()); BOOST_CHECK(!CSubNet(ResolveIP("::1"), ResolveIP("255.0.0.0")).IsValid()); - // Can't subnet TOR (or any other non-IPv4 and non-IPv6 network). - BOOST_CHECK(!CSubNet(ResolveIP("5wyqrzbvrdsumnok.onion"), ResolveIP("255.0.0.0")).IsValid()); + + // Create Non-IP subnets. + + const CNetAddr tor_addr{ + ResolveIP("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion")}; + + subnet = CSubNet(tor_addr); + BOOST_CHECK(subnet.IsValid()); + BOOST_CHECK_EQUAL(subnet.ToString(), tor_addr.ToString()); + BOOST_CHECK(subnet.Match(tor_addr)); + BOOST_CHECK( + !subnet.Match(ResolveIP("kpgvmscirrdqpekbqjsvw5teanhatztpp2gl6eee4zkowvwfxwenqaid.onion"))); + BOOST_CHECK(!subnet.Match(ResolveIP("1.2.3.4"))); + + BOOST_CHECK(!CSubNet(tor_addr, 200).IsValid()); + BOOST_CHECK(!CSubNet(tor_addr, ResolveIP("255.0.0.0")).IsValid()); subnet = ResolveSubNet("1.2.3.4/255.255.255.255"); BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.4/32"); @@ -442,8 +456,7 @@ BOOST_AUTO_TEST_CASE(netbase_dont_resolve_strings_with_embedded_nul_characters) BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0"s, ret)); BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0example.com"s, ret)); BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0example.com\0"s, ret)); - // We only do subnetting for IPv4 and IPv6 - BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion"s, ret)); + BOOST_CHECK(LookupSubNet("5wyqrzbvrdsumnok.onion"s, ret)); BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion\0"s, ret)); BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion\0example.com"s, ret)); BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion\0example.com\0"s, ret)); -- cgit v1.2.3