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| author | Vasil Dimov <vd@FreeBSD.org> | 2020-08-24 21:34:26 +0200 |
|---|---|---|
| committer | Vasil Dimov <vd@FreeBSD.org> | 2020-08-24 21:50:59 +0200 |
| commit | 102867c587f5f7954232fb8ed8e85cda78bb4d32 (patch) | |
| tree | 4c9aea8c2b43541d4bfd2ddd23a3ddebd22c3346 /src/test/netbase_tests.cpp | |
| parent | 1ea57ad67406b3aaaef5254bc2fa7e4134f3a6df (diff) | |
| download | bitcoin-102867c587f5f7954232fb8ed8e85cda78bb4d32.tar.xz | |
net: change CNetAddr::ip to have flexible size
Before this change `CNetAddr::ip` was a fixed-size array of 16 bytes,
not being able to store larger addresses (e.g. TORv3) and encoded
smaller ones as 16-byte IPv6 addresses.
Change its type to `prevector`, so that it can hold larger addresses and
do not disguise non-IPv6 addresses as IPv6. So the IPv4 address
`1.2.3.4` is now encoded as `01020304` instead of
`00000000000000000000FFFF01020304`.
Rename `CNetAddr::ip` to `CNetAddr::m_addr` because it is not an "IP" or
"IP address" (TOR addresses are not IP addresses).
In order to preserve backward compatibility with serialization (where
e.g. `1.2.3.4` is serialized as `00000000000000000000FFFF01020304`)
introduce `CNetAddr` dedicated legacy serialize/unserialize methods.
Adjust `CSubNet` accordingly. Still use `CSubNet::netmask[]` of fixed 16
bytes, but use the first 4 for IPv4 (not the last 4). Only allow
subnetting for IPv4 and IPv6.
Co-authored-by: Carl Dong <contact@carldong.me>
Diffstat (limited to 'src/test/netbase_tests.cpp')
| -rw-r--r-- | src/test/netbase_tests.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/test/netbase_tests.cpp b/src/test/netbase_tests.cpp index 8041c2e3ed..6681c92bb5 100644 --- a/src/test/netbase_tests.cpp +++ b/src/test/netbase_tests.cpp @@ -185,6 +185,7 @@ BOOST_AUTO_TEST_CASE(subnet_test) BOOST_CHECK(!ResolveSubNet("1.2.3.0/-1").IsValid()); BOOST_CHECK(ResolveSubNet("1.2.3.0/32").IsValid()); BOOST_CHECK(!ResolveSubNet("1.2.3.0/33").IsValid()); + BOOST_CHECK(!ResolveSubNet("1.2.3.0/300").IsValid()); BOOST_CHECK(ResolveSubNet("1:2:3:4:5:6:7:8/0").IsValid()); BOOST_CHECK(ResolveSubNet("1:2:3:4:5:6:7:8/33").IsValid()); BOOST_CHECK(!ResolveSubNet("1:2:3:4:5:6:7:8/-1").IsValid()); @@ -216,6 +217,11 @@ BOOST_AUTO_TEST_CASE(subnet_test) BOOST_CHECK(CSubNet(ResolveIP("1:2:3:4:5:6:7:8")).Match(ResolveIP("1:2:3:4:5:6:7:8"))); BOOST_CHECK(!CSubNet(ResolveIP("1:2:3:4:5:6:7:8")).Match(ResolveIP("1:2:3:4:5:6:7:9"))); BOOST_CHECK(CSubNet(ResolveIP("1:2:3:4:5:6:7:8")).ToString() == "1:2:3:4:5:6:7:8/128"); + // 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()); subnet = ResolveSubNet("1.2.3.4/255.255.255.255"); BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.4/32"); @@ -430,7 +436,8 @@ BOOST_AUTO_TEST_CASE(netbase_dont_resolve_strings_with_embedded_nul_characters) BOOST_CHECK(!LookupSubNet(std::string("1.2.3.0/24\0", 11), ret)); BOOST_CHECK(!LookupSubNet(std::string("1.2.3.0/24\0example.com", 22), ret)); BOOST_CHECK(!LookupSubNet(std::string("1.2.3.0/24\0example.com\0", 23), ret)); - BOOST_CHECK(LookupSubNet(std::string("5wyqrzbvrdsumnok.onion", 22), ret)); + // We only do subnetting for IPv4 and IPv6 + BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion", 22), ret)); BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion\0", 23), ret)); BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion\0example.com", 34), ret)); BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion\0example.com\0", 35), ret)); |