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p2p: return `CSubNet` in `LookupSubNet`

Browse Source
pull/26078/head
brunoerg 2 years ago
parent 71300489af
commit fb3e812277
8 changed files with 101 additions and 115 deletions
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3
src/httpserver.cpp
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@ -173,8 +173,7 @@ static bool InitHTTPAllowList()
rpc_allow_subnets.push_back(CSubNet{LookupHost("127.0.0.1", false).value(), 8}); // always allow IPv4 local subnet
rpc_allow_subnets.push_back(CSubNet{LookupHost("::1", false).value()}); // always allow IPv6 localhost
for (const std::string& strAllow : gArgs.GetArgs("-rpcallowip")) {
CSubNet subnet;
LookupSubNet(strAllow, subnet);
const CSubNet subnet{LookupSubNet(strAllow)};
if (!subnet.IsValid()) {
uiInterface.ThreadSafeMessageBox(
strprintf(Untranslated("Invalid -rpcallowip subnet specification: %s. Valid are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24)."), strAllow),

3
src/net_permissions.cpp
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@ -111,8 +111,7 @@ bool NetWhitelistPermissions::TryParse(const std::string& str, NetWhitelistPermi
if (!TryParsePermissionFlags(str, flags, offset, error)) return false;
const std::string net = str.substr(offset);
CSubNet subnet;
LookupSubNet(net, subnet);
const CSubNet subnet{LookupSubNet(net)};
if (!subnet.IsValid()) {
error = strprintf(_("Invalid netmask specified in -whitelist: '%s'"), net);
return false;

4
src/net_types.cpp
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@ -63,9 +63,9 @@ void BanMapFromJson(const UniValue& bans_json, banmap_t& bans)
LogPrintf("Dropping entry with unknown version (%s) from ban list\n", version);
continue;
}
CSubNet subnet;
const auto& subnet_str = ban_entry_json[BANMAN_JSON_ADDR_KEY].get_str();
if (!LookupSubNet(subnet_str, subnet)) {
const CSubNet subnet{LookupSubNet(subnet_str)};
if (!subnet.IsValid()) {
LogPrintf("Dropping entry with unparseable address or subnet (%s) from ban list\n", subnet_str);
continue;
}

18
src/netbase.cpp
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@ -655,10 +655,12 @@ bool ConnectThroughProxy(const Proxy& proxy, const std::string& strDest, uint16_
return true;
}
bool LookupSubNet(const std::string& subnet_str, CSubNet& subnet_out)
CSubNet LookupSubNet(const std::string& subnet_str)
{
CSubNet subnet;
assert(!subnet.IsValid());
if (!ContainsNoNUL(subnet_str)) {
return false;
return subnet;
}
const size_t slash_pos{subnet_str.find_last_of('/')};
@ -671,23 +673,21 @@ bool LookupSubNet(const std::string& subnet_str, CSubNet& subnet_out)
uint8_t netmask;
if (ParseUInt8(netmask_str, &netmask)) {
// Valid number; assume CIDR variable-length subnet masking.
subnet_out = CSubNet{addr.value(), netmask};
return subnet_out.IsValid();
subnet = CSubNet{addr.value(), netmask};
} else {
// Invalid number; try full netmask syntax. Never allow lookup for netmask.
const std::optional<CNetAddr> full_netmask{LookupHost(netmask_str, /*fAllowLookup=*/false)};
if (full_netmask.has_value()) {
subnet_out = CSubNet{addr.value(), full_netmask.value()};
return subnet_out.IsValid();
subnet = CSubNet{addr.value(), full_netmask.value()};
}
}
} else {
// Single IP subnet (<ipv4>/32 or <ipv6>/128).
subnet_out = CSubNet{addr.value()};
return subnet_out.IsValid();
subnet = CSubNet{addr.value()};
}
}
return false;
return subnet;
}
void InterruptSocks5(bool interrupt)

6
src/netbase.h
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@ -171,11 +171,9 @@ CService LookupNumeric(const std::string& name, uint16_t portDefault = 0, DNSLoo
* @param[in] subnet_str A string representation of a subnet of the form
* `network address [ "/", ( CIDR-style suffix | netmask ) ]`
* e.g. "2001:db8::/32", "192.0.2.0/255.255.255.0" or "8.8.8.8".
* @param[out] subnet_out Internal subnet representation, if parsable/resolvable
* from `subnet_str`.
* @returns whether the operation succeeded or not.
* @returns a CSubNet object (that may or may not be valid).
*/
bool LookupSubNet(const std::string& subnet_str, CSubNet& subnet_out);
CSubNet LookupSubNet(const std::string& subnet_str);
/**
* Create a TCP socket in the given address family.

2
src/rpc/net.cpp
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@ -719,7 +719,7 @@ static RPCHelpMan setban()
}
}
else
LookupSubNet(request.params[0].get_str(), subNet);
subNet = LookupSubNet(request.params[0].get_str());
if (! (isSubnet ? subNet.IsValid() : netAddr.IsValid()) )
throw JSONRPCError(RPC_CLIENT_INVALID_IP_OR_SUBNET, "Error: Invalid IP/Subnet");

5
src/test/fuzz/netbase_dns_lookup.cpp
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@ -59,9 +59,6 @@ FUZZ_TARGET(netbase_dns_lookup)
assert(!resolved_service.IsInternal());
}
{
CSubNet resolved_subnet;
if (LookupSubNet(name, resolved_subnet)) {
assert(resolved_subnet.IsValid());
}
(void)LookupSubNet(name);
}
}

175
src/test/netbase_tests.cpp
Unescape View File

@ -27,13 +27,6 @@ static CNetAddr ResolveIP(const std::string& ip)
return LookupHost(ip, false).value_or(CNetAddr{});
}
static CSubNet ResolveSubNet(const std::string& subnet)
{
CSubNet ret;
LookupSubNet(subnet, ret);
return ret;
}
static CNetAddr CreateInternal(const std::string& host)
{
CNetAddr addr;
@ -159,49 +152,49 @@ BOOST_AUTO_TEST_CASE(embedded_test)
BOOST_AUTO_TEST_CASE(subnet_test)
{
BOOST_CHECK(ResolveSubNet("1.2.3.0/24") == ResolveSubNet("1.2.3.0/255.255.255.0"));
BOOST_CHECK(ResolveSubNet("1.2.3.0/24") != ResolveSubNet("1.2.4.0/255.255.255.0"));
BOOST_CHECK(ResolveSubNet("1.2.3.0/24").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(!ResolveSubNet("1.2.2.0/24").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(ResolveSubNet("1.2.3.4").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(ResolveSubNet("1.2.3.4/32").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(!ResolveSubNet("1.2.3.4").Match(ResolveIP("5.6.7.8")));
BOOST_CHECK(!ResolveSubNet("1.2.3.4/32").Match(ResolveIP("5.6.7.8")));
BOOST_CHECK(ResolveSubNet("::ffff:127.0.0.1").Match(ResolveIP("127.0.0.1")));
BOOST_CHECK(ResolveSubNet("1:2:3:4:5:6:7:8").Match(ResolveIP("1:2:3:4:5:6:7:8")));
BOOST_CHECK(!ResolveSubNet("1:2:3:4:5:6:7:8").Match(ResolveIP("1:2:3:4:5:6:7:9")));
BOOST_CHECK(ResolveSubNet("1:2:3:4:5:6:7:0/112").Match(ResolveIP("1:2:3:4:5:6:7:1234")));
BOOST_CHECK(ResolveSubNet("192.168.0.1/24").Match(ResolveIP("192.168.0.2")));
BOOST_CHECK(ResolveSubNet("192.168.0.20/29").Match(ResolveIP("192.168.0.18")));
BOOST_CHECK(ResolveSubNet("1.2.2.1/24").Match(ResolveIP("1.2.2.4")));
BOOST_CHECK(ResolveSubNet("1.2.2.110/31").Match(ResolveIP("1.2.2.111")));
BOOST_CHECK(ResolveSubNet("1.2.2.20/26").Match(ResolveIP("1.2.2.63")));
BOOST_CHECK(LookupSubNet("1.2.3.0/24") == LookupSubNet("1.2.3.0/255.255.255.0"));
BOOST_CHECK(LookupSubNet("1.2.3.0/24") != LookupSubNet("1.2.4.0/255.255.255.0"));
BOOST_CHECK(LookupSubNet("1.2.3.0/24").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(!LookupSubNet("1.2.2.0/24").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(LookupSubNet("1.2.3.4").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(LookupSubNet("1.2.3.4/32").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(!LookupSubNet("1.2.3.4").Match(ResolveIP("5.6.7.8")));
BOOST_CHECK(!LookupSubNet("1.2.3.4/32").Match(ResolveIP("5.6.7.8")));
BOOST_CHECK(LookupSubNet("::ffff:127.0.0.1").Match(ResolveIP("127.0.0.1")));
BOOST_CHECK(LookupSubNet("1:2:3:4:5:6:7:8").Match(ResolveIP("1:2:3:4:5:6:7:8")));
BOOST_CHECK(!LookupSubNet("1:2:3:4:5:6:7:8").Match(ResolveIP("1:2:3:4:5:6:7:9")));
BOOST_CHECK(LookupSubNet("1:2:3:4:5:6:7:0/112").Match(ResolveIP("1:2:3:4:5:6:7:1234")));
BOOST_CHECK(LookupSubNet("192.168.0.1/24").Match(ResolveIP("192.168.0.2")));
BOOST_CHECK(LookupSubNet("192.168.0.20/29").Match(ResolveIP("192.168.0.18")));
BOOST_CHECK(LookupSubNet("1.2.2.1/24").Match(ResolveIP("1.2.2.4")));
BOOST_CHECK(LookupSubNet("1.2.2.110/31").Match(ResolveIP("1.2.2.111")));
BOOST_CHECK(LookupSubNet("1.2.2.20/26").Match(ResolveIP("1.2.2.63")));
// All-Matching IPv6 Matches arbitrary IPv6
BOOST_CHECK(ResolveSubNet("::/0").Match(ResolveIP("1:2:3:4:5:6:7:1234")));
BOOST_CHECK(LookupSubNet("::/0").Match(ResolveIP("1:2:3:4:5:6:7:1234")));
// But not `::` or `0.0.0.0` because they are considered invalid addresses
BOOST_CHECK(!ResolveSubNet("::/0").Match(ResolveIP("::")));
BOOST_CHECK(!ResolveSubNet("::/0").Match(ResolveIP("0.0.0.0")));
BOOST_CHECK(!LookupSubNet("::/0").Match(ResolveIP("::")));
BOOST_CHECK(!LookupSubNet("::/0").Match(ResolveIP("0.0.0.0")));
// Addresses from one network (IPv4) don't belong to subnets of another network (IPv6)
BOOST_CHECK(!ResolveSubNet("::/0").Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(!LookupSubNet("::/0").Match(ResolveIP("1.2.3.4")));
// All-Matching IPv4 does not Match IPv6
BOOST_CHECK(!ResolveSubNet("0.0.0.0/0").Match(ResolveIP("1:2:3:4:5:6:7:1234")));
BOOST_CHECK(!LookupSubNet("0.0.0.0/0").Match(ResolveIP("1:2:3:4:5:6:7:1234")));
// Invalid subnets Match nothing (not even invalid addresses)
BOOST_CHECK(!CSubNet().Match(ResolveIP("1.2.3.4")));
BOOST_CHECK(!ResolveSubNet("").Match(ResolveIP("4.5.6.7")));
BOOST_CHECK(!ResolveSubNet("bloop").Match(ResolveIP("0.0.0.0")));
BOOST_CHECK(!ResolveSubNet("bloop").Match(ResolveIP("hab")));
BOOST_CHECK(!LookupSubNet("").Match(ResolveIP("4.5.6.7")));
BOOST_CHECK(!LookupSubNet("bloop").Match(ResolveIP("0.0.0.0")));
BOOST_CHECK(!LookupSubNet("bloop").Match(ResolveIP("hab")));
// Check valid/invalid
BOOST_CHECK(ResolveSubNet("1.2.3.0/0").IsValid());
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());
BOOST_CHECK(ResolveSubNet("1:2:3:4:5:6:7:8/128").IsValid());
BOOST_CHECK(!ResolveSubNet("1:2:3:4:5:6:7:8/129").IsValid());
BOOST_CHECK(!ResolveSubNet("fuzzy").IsValid());
BOOST_CHECK(LookupSubNet("1.2.3.0/0").IsValid());
BOOST_CHECK(!LookupSubNet("1.2.3.0/-1").IsValid());
BOOST_CHECK(LookupSubNet("1.2.3.0/32").IsValid());
BOOST_CHECK(!LookupSubNet("1.2.3.0/33").IsValid());
BOOST_CHECK(!LookupSubNet("1.2.3.0/300").IsValid());
BOOST_CHECK(LookupSubNet("1:2:3:4:5:6:7:8/0").IsValid());
BOOST_CHECK(LookupSubNet("1:2:3:4:5:6:7:8/33").IsValid());
BOOST_CHECK(!LookupSubNet("1:2:3:4:5:6:7:8/-1").IsValid());
BOOST_CHECK(LookupSubNet("1:2:3:4:5:6:7:8/128").IsValid());
BOOST_CHECK(!LookupSubNet("1:2:3:4:5:6:7:8/129").IsValid());
BOOST_CHECK(!LookupSubNet("fuzzy").IsValid());
//CNetAddr constructor test
BOOST_CHECK(CSubNet(ResolveIP("127.0.0.1")).IsValid());
@ -247,85 +240,85 @@ BOOST_AUTO_TEST_CASE(subnet_test)
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");
subnet = LookupSubNet("1.2.3.4/255.255.255.255");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.4/32");
subnet = ResolveSubNet("1.2.3.4/255.255.255.254");
subnet = LookupSubNet("1.2.3.4/255.255.255.254");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.4/31");
subnet = ResolveSubNet("1.2.3.4/255.255.255.252");
subnet = LookupSubNet("1.2.3.4/255.255.255.252");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.4/30");
subnet = ResolveSubNet("1.2.3.4/255.255.255.248");
subnet = LookupSubNet("1.2.3.4/255.255.255.248");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.0/29");
subnet = ResolveSubNet("1.2.3.4/255.255.255.240");
subnet = LookupSubNet("1.2.3.4/255.255.255.240");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.0/28");
subnet = ResolveSubNet("1.2.3.4/255.255.255.224");
subnet = LookupSubNet("1.2.3.4/255.255.255.224");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.0/27");
subnet = ResolveSubNet("1.2.3.4/255.255.255.192");
subnet = LookupSubNet("1.2.3.4/255.255.255.192");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.0/26");
subnet = ResolveSubNet("1.2.3.4/255.255.255.128");
subnet = LookupSubNet("1.2.3.4/255.255.255.128");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.0/25");
subnet = ResolveSubNet("1.2.3.4/255.255.255.0");
subnet = LookupSubNet("1.2.3.4/255.255.255.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.3.0/24");
subnet = ResolveSubNet("1.2.3.4/255.255.254.0");
subnet = LookupSubNet("1.2.3.4/255.255.254.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.2.0/23");
subnet = ResolveSubNet("1.2.3.4/255.255.252.0");
subnet = LookupSubNet("1.2.3.4/255.255.252.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/22");
subnet = ResolveSubNet("1.2.3.4/255.255.248.0");
subnet = LookupSubNet("1.2.3.4/255.255.248.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/21");
subnet = ResolveSubNet("1.2.3.4/255.255.240.0");
subnet = LookupSubNet("1.2.3.4/255.255.240.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/20");
subnet = ResolveSubNet("1.2.3.4/255.255.224.0");
subnet = LookupSubNet("1.2.3.4/255.255.224.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/19");
subnet = ResolveSubNet("1.2.3.4/255.255.192.0");
subnet = LookupSubNet("1.2.3.4/255.255.192.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/18");
subnet = ResolveSubNet("1.2.3.4/255.255.128.0");
subnet = LookupSubNet("1.2.3.4/255.255.128.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/17");
subnet = ResolveSubNet("1.2.3.4/255.255.0.0");
subnet = LookupSubNet("1.2.3.4/255.255.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/16");
subnet = ResolveSubNet("1.2.3.4/255.254.0.0");
subnet = LookupSubNet("1.2.3.4/255.254.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.2.0.0/15");
subnet = ResolveSubNet("1.2.3.4/255.252.0.0");
subnet = LookupSubNet("1.2.3.4/255.252.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/14");
subnet = ResolveSubNet("1.2.3.4/255.248.0.0");
subnet = LookupSubNet("1.2.3.4/255.248.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/13");
subnet = ResolveSubNet("1.2.3.4/255.240.0.0");
subnet = LookupSubNet("1.2.3.4/255.240.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/12");
subnet = ResolveSubNet("1.2.3.4/255.224.0.0");
subnet = LookupSubNet("1.2.3.4/255.224.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/11");
subnet = ResolveSubNet("1.2.3.4/255.192.0.0");
subnet = LookupSubNet("1.2.3.4/255.192.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/10");
subnet = ResolveSubNet("1.2.3.4/255.128.0.0");
subnet = LookupSubNet("1.2.3.4/255.128.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/9");
subnet = ResolveSubNet("1.2.3.4/255.0.0.0");
subnet = LookupSubNet("1.2.3.4/255.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "1.0.0.0/8");
subnet = ResolveSubNet("1.2.3.4/254.0.0.0");
subnet = LookupSubNet("1.2.3.4/254.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/7");
subnet = ResolveSubNet("1.2.3.4/252.0.0.0");
subnet = LookupSubNet("1.2.3.4/252.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/6");
subnet = ResolveSubNet("1.2.3.4/248.0.0.0");
subnet = LookupSubNet("1.2.3.4/248.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/5");
subnet = ResolveSubNet("1.2.3.4/240.0.0.0");
subnet = LookupSubNet("1.2.3.4/240.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/4");
subnet = ResolveSubNet("1.2.3.4/224.0.0.0");
subnet = LookupSubNet("1.2.3.4/224.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/3");
subnet = ResolveSubNet("1.2.3.4/192.0.0.0");
subnet = LookupSubNet("1.2.3.4/192.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/2");
subnet = ResolveSubNet("1.2.3.4/128.0.0.0");
subnet = LookupSubNet("1.2.3.4/128.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/1");
subnet = ResolveSubNet("1.2.3.4/0.0.0.0");
subnet = LookupSubNet("1.2.3.4/0.0.0.0");
BOOST_CHECK_EQUAL(subnet.ToString(), "0.0.0.0/0");
subnet = ResolveSubNet("1:2:3:4:5:6:7:8/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
subnet = LookupSubNet("1:2:3:4:5:6:7:8/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
BOOST_CHECK_EQUAL(subnet.ToString(), "1:2:3:4:5:6:7:8/128");
subnet = ResolveSubNet("1:2:3:4:5:6:7:8/ffff:0000:0000:0000:0000:0000:0000:0000");
subnet = LookupSubNet("1:2:3:4:5:6:7:8/ffff:0000:0000:0000:0000:0000:0000:0000");
BOOST_CHECK_EQUAL(subnet.ToString(), "1::/16");
subnet = ResolveSubNet("1:2:3:4:5:6:7:8/0000:0000:0000:0000:0000:0000:0000:0000");
subnet = LookupSubNet("1:2:3:4:5:6:7:8/0000:0000:0000:0000:0000:0000:0000:0000");
BOOST_CHECK_EQUAL(subnet.ToString(), "::/0");
// Invalid netmasks (with 1-bits after 0-bits)
subnet = ResolveSubNet("1.2.3.4/255.255.232.0");
subnet = LookupSubNet("1.2.3.4/255.255.232.0");
BOOST_CHECK(!subnet.IsValid());
subnet = ResolveSubNet("1.2.3.4/255.0.255.255");
subnet = LookupSubNet("1.2.3.4/255.0.255.255");
BOOST_CHECK(!subnet.IsValid());
subnet = ResolveSubNet("1:2:3:4:5:6:7:8/ffff:ffff:ffff:fffe:ffff:ffff:ffff:ff0f");
subnet = LookupSubNet("1:2:3:4:5:6:7:8/ffff:ffff:ffff:fffe:ffff:ffff:ffff:ff0f");
BOOST_CHECK(!subnet.IsValid());
}
@ -479,15 +472,15 @@ BOOST_AUTO_TEST_CASE(netbase_dont_resolve_strings_with_embedded_nul_characters)
BOOST_CHECK(!LookupHost("127.0.0.1\0"s, false).has_value());
BOOST_CHECK(!LookupHost("127.0.0.1\0example.com"s, false).has_value());
BOOST_CHECK(!LookupHost("127.0.0.1\0example.com\0"s, false).has_value());
CSubNet ret;
BOOST_CHECK(LookupSubNet("1.2.3.0/24"s, ret));
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));
BOOST_CHECK(LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion"s, ret));
BOOST_CHECK(!LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion\0"s, ret));
BOOST_CHECK(!LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion\0example.com"s, ret));
BOOST_CHECK(!LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion\0example.com\0"s, ret));
BOOST_CHECK(LookupSubNet("1.2.3.0/24"s).IsValid());
BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0"s).IsValid());
BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0example.com"s).IsValid());
BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0example.com\0"s).IsValid());
BOOST_CHECK(LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion"s).IsValid());
BOOST_CHECK(!LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion\0"s).IsValid());
BOOST_CHECK(!LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion\0example.com"s).IsValid());
BOOST_CHECK(!LookupSubNet("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion\0example.com\0"s).IsValid());
}
// Since CNetAddr (un)ser is tested separately in net_tests.cpp here we only

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