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/* Copyright (c) 2016, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#include <string>
#include <vector>
#include "gcs_base_test.h"
using std::vector;
namespace gcs_allowlist_unittest {
class GcsAllowlist : public GcsBaseTest {
protected:
GcsAllowlist() = default;
};
TEST_F(GcsAllowlist, ValidIPs) {
Gcs_ip_allowlist wl;
ASSERT_TRUE(wl.is_valid("192.168.1.1"));
ASSERT_TRUE(wl.is_valid("192.168.1.2"));
ASSERT_TRUE(wl.is_valid("192.168.1.254"));
ASSERT_TRUE(wl.is_valid("::1"));
ASSERT_TRUE(wl.is_valid("2606:b400:8b0:40:4308:1306:ad4a:6e51"));
ASSERT_TRUE(wl.is_valid("::1/2"));
ASSERT_TRUE(wl.is_valid("::1/64,192.168.1.2/24"));
ASSERT_TRUE(wl.is_valid("::1/64,192.168.1.2/24,192.168.1.1"));
ASSERT_TRUE(wl.is_valid("::1/64,192.168.1.2/24,192.168.1.1,10.1.1.1"));
}
TEST_F(GcsAllowlist, InvalidConfiguration) {
Gcs_ip_allowlist wl;
ASSERT_FALSE(wl.is_valid("192.168.1"));
ASSERT_FALSE(wl.is_valid("192.168.1/24"));
ASSERT_FALSE(wl.is_valid("192.168.1.0/33"));
ASSERT_FALSE(wl.is_valid("192.168.1.0/24,192.168.2.0/33"));
}
TEST_F(GcsAllowlist, ValidListIPv6) {
Gcs_ip_allowlist wl;
std::string list =
"::1/128,192.168.1.1/24,fe80::2ab2:bdff:fe16:8d07/67, "
"2606:b400:8b0:40:4308:1306:ad4a:6e51";
wl.configure(list);
ASSERT_FALSE(wl.shall_block("::1"));
ASSERT_FALSE(wl.shall_block("fe80::2ab2:bdff:fe16:8d07"));
ASSERT_FALSE(wl.shall_block("2606:b400:8b0:40:4308:1306:ad4a:6e51"));
ASSERT_FALSE(wl.shall_block("::ffff:192.168.1.10"));
ASSERT_FALSE(wl.shall_block("192.168.1.10"));
}
TEST_F(GcsAllowlist, ValidListIPv4) {
Gcs_ip_allowlist wl;
wl.configure("192.168.1.0/31,localhost/32");
ASSERT_FALSE(wl.shall_block("192.168.1.1"));
ASSERT_TRUE(wl.shall_block("192.168.2.1"));
ASSERT_TRUE(wl.shall_block("192.168.1.2"));
wl.configure("192.168.1.0/32");
ASSERT_TRUE(wl.shall_block("192.168.1.1"));
wl.configure("192.168.1.1/32");
ASSERT_FALSE(wl.shall_block("192.168.1.1"));
// never block localhost
ASSERT_FALSE(wl.shall_block("127.0.0.1"));
wl.configure("192.168.1.0/24,192.168.2.0/24");
ASSERT_FALSE(wl.shall_block("127.0.0.1"));
ASSERT_FALSE(wl.shall_block("192.168.1.2"));
ASSERT_FALSE(wl.shall_block("192.168.1.254"));
ASSERT_FALSE(wl.shall_block("192.168.2.2"));
ASSERT_FALSE(wl.shall_block("192.168.2.254"));
}
TEST_F(GcsAllowlist, DefaultList) {
Gcs_ip_allowlist wl;
wl.configure(Gcs_ip_allowlist::DEFAULT_ALLOWLIST);
ASSERT_FALSE(wl.shall_block("127.0.0.1"));
ASSERT_FALSE(wl.shall_block("::1"));
ASSERT_FALSE(wl.shall_block("fe80::da2:aab6:88aa:5061"));
ASSERT_FALSE(wl.shall_block("192.168.1.2"));
ASSERT_FALSE(wl.shall_block("192.168.2.2"));
ASSERT_FALSE(wl.shall_block("10.0.0.1"));
ASSERT_TRUE(wl.shall_block("172.15.0.1"));
ASSERT_FALSE(wl.shall_block("172.16.0.1"));
ASSERT_FALSE(wl.shall_block("172.24.0.1"));
ASSERT_FALSE(wl.shall_block("172.31.0.1"));
ASSERT_TRUE(wl.shall_block("172.38.0.1"));
}
TEST_F(GcsAllowlist, ListAsText) {
Gcs_ip_allowlist wl;
wl.configure(Gcs_ip_allowlist::DEFAULT_ALLOWLIST);
ASSERT_STRCASEEQ(Gcs_ip_allowlist::DEFAULT_ALLOWLIST.c_str(),
wl.get_configured_ip_allowlist().c_str());
}
TEST_F(GcsAllowlist, AbsentList) {
Gcs_interface_parameters params;
params.add_parameter("group_name", "ola");
params.add_parameter("peer_nodes", "127.0.0.1:24844");
params.add_parameter("local_node", "127.0.0.1:24844");
params.add_parameter("bootstrap_group", "true");
params.add_parameter("poll_spin_loops", "100");
Gcs_interface *gcs = Gcs_xcom_interface::get_interface();
enum_gcs_error err = gcs->initialize(params);
ASSERT_EQ(err, GCS_OK);
// verify that a allowlist was provided by default
Gcs_xcom_interface *xcs = static_cast<Gcs_xcom_interface *>(gcs);
MYSQL_GCS_LOG_INFO("Allowlist as string with collected IP addresses: "
<< xcs->get_ip_allowlist().to_string());
ASSERT_FALSE(xcs->get_ip_allowlist().get_configured_ip_allowlist().empty());
ASSERT_FALSE(xcs->get_ip_allowlist().to_string().empty());
// this finalizes the m_logger, so be careful to not add a call to
// MYSQL_GCS_LOG after this line
err = gcs->finalize();
// claim interface memory back
xcs->cleanup();
// initialization failed, and thus so will finalization
ASSERT_EQ(err, GCS_OK);
}
TEST_F(GcsAllowlist, ListWithHostname) {
Gcs_interface_parameters params;
params.add_parameter("group_name", "ola");
params.add_parameter("peer_nodes", "127.0.0.1:24844");
params.add_parameter("local_node", "127.0.0.1:24844");
params.add_parameter("bootstrap_group", "true");
params.add_parameter("poll_spin_loops", "100");
vector<char> machine_hostname;
machine_hostname.resize(MAXHOSTNAMELEN);
gethostname(machine_hostname.data(), MAXHOSTNAMELEN);
std::ostringstream assembled_allowlist;
assembled_allowlist << machine_hostname.data();
assembled_allowlist << "/16,";
assembled_allowlist << "localhost/32";
params.add_parameter("ip_allowlist", assembled_allowlist.str().c_str());
Gcs_interface *gcs = Gcs_xcom_interface::get_interface();
enum_gcs_error err = gcs->initialize(params);
ASSERT_EQ(err, GCS_OK);
// verify that a allowlist was provided by default
Gcs_xcom_interface *xcs = static_cast<Gcs_xcom_interface *>(gcs);
MYSQL_GCS_LOG_INFO("Allowlist as string with collected IP addresses: "
<< xcs->get_ip_allowlist().to_string());
ASSERT_FALSE(xcs->get_ip_allowlist().get_configured_ip_allowlist().empty());
ASSERT_FALSE(xcs->get_ip_allowlist().to_string().empty());
std::vector<std::pair<sa_family_t, std::string>> ips;
resolve_all_ip_addr_from_hostname("localhost", ips);
auto has_v4_addresses_it =
std::find_if(ips.begin(), ips.end(),
[](std::pair<sa_family_t, std::string> const &ip_entry) {
return ip_entry.first == AF_INET;
});
bool has_v4_addresses = has_v4_addresses_it != ips.end();
// This should not block to whatever address localhost resolves
for (auto &ip : ips) {
if (has_v4_addresses && ip.first == AF_INET6)
EXPECT_TRUE(xcs->get_ip_allowlist().shall_block(ip.second));
else
EXPECT_FALSE(xcs->get_ip_allowlist().shall_block(ip.second));
}
// this finalizes the m_logger, so be careful to not add a call to
// MYSQL_GCS_LOG after this line
err = gcs->finalize();
// claim interface memory back
xcs->cleanup();
ASSERT_EQ(err, GCS_OK);
}
TEST_F(GcsAllowlist, ListWithUnresolvableHostname) {
Gcs_interface_parameters params;
params.add_parameter("group_name", "ola");
params.add_parameter("peer_nodes", "127.0.0.1:24844");
params.add_parameter("local_node", "127.0.0.1:24844");
params.add_parameter("bootstrap_group", "true");
params.add_parameter("poll_spin_loops", "100");
vector<char> machine_hostname;
machine_hostname.resize(MAXHOSTNAMELEN);
gethostname(machine_hostname.data(), MAXHOSTNAMELEN);
std::ostringstream assembled_allowlist;
assembled_allowlist << machine_hostname.data();
assembled_allowlist << "/16,";
assembled_allowlist << "unresolvablehostname/32,";
assembled_allowlist << "localhost/32";
params.add_parameter("ip_allowlist", assembled_allowlist.str().c_str());
Gcs_interface *gcs = Gcs_xcom_interface::get_interface();
enum_gcs_error err = gcs->initialize(params);
ASSERT_EQ(err, GCS_OK);
// verify that a allowlist was provided by default
Gcs_xcom_interface *xcs = static_cast<Gcs_xcom_interface *>(gcs);
MYSQL_GCS_LOG_INFO("Allowlist as string with collected IP addresses: "
<< xcs->get_ip_allowlist().to_string());
ASSERT_FALSE(xcs->get_ip_allowlist().get_configured_ip_allowlist().empty());
ASSERT_FALSE(xcs->get_ip_allowlist().to_string().empty());
// This will force a allowlist validation and a failure on name resolution
// code
ASSERT_TRUE(xcs->get_ip_allowlist().shall_block("192.12.13.14"));
// this finalizes the m_logger, so be careful to not add a call to
// MYSQL_GCS_LOG after this line
err = gcs->finalize();
// claim interface memory back
xcs->cleanup();
ASSERT_EQ(err, GCS_OK);
}
TEST_F(GcsAllowlist, XComMembers) {
Gcs_ip_allowlist wl;
char const *members[] = {"8.8.8.8:12435", "8.8.4.4:1234", "localhost:12346"};
const char **xcom_addrs{members};
node_address *xcom_names = new_node_address(3, xcom_addrs);
site_def *xcom_config = new_site_def();
init_site_def(3, xcom_names, xcom_config);
wl.configure(Gcs_ip_allowlist::DEFAULT_ALLOWLIST);
ASSERT_FALSE(wl.shall_block("127.0.0.1", xcom_config));
ASSERT_FALSE(wl.shall_block("::1", xcom_config));
ASSERT_FALSE(wl.shall_block("192.168.1.2", xcom_config));
ASSERT_FALSE(wl.shall_block("192.168.2.2", xcom_config));
ASSERT_FALSE(wl.shall_block("10.0.0.1", xcom_config));
ASSERT_TRUE(wl.shall_block("172.15.0.1", xcom_config));
ASSERT_FALSE(wl.shall_block("172.16.0.1", xcom_config));
ASSERT_FALSE(wl.shall_block("172.24.0.1", xcom_config));
ASSERT_FALSE(wl.shall_block("172.31.0.1", xcom_config));
ASSERT_TRUE(wl.shall_block("172.38.0.1", xcom_config));
ASSERT_FALSE(wl.shall_block("8.8.8.8", xcom_config));
ASSERT_FALSE(wl.shall_block("8.8.4.4", xcom_config));
ASSERT_TRUE(wl.shall_block("8.8.8.9", xcom_config));
ASSERT_TRUE(wl.shall_block("8.8.9.8", xcom_config));
ASSERT_TRUE(wl.shall_block("8.9.8.8", xcom_config));
ASSERT_TRUE(wl.shall_block("9.8.8.8", xcom_config));
delete_node_address(3, xcom_names);
free_site_def(xcom_config);
}
TEST_F(GcsAllowlist, ComparisonBetweenIPv4AndIPv6) {
Gcs_ip_allowlist wl;
wl.configure("ac0f:0001::/32");
ASSERT_TRUE(wl.shall_block("172.15.0.1"));
}
} // namespace gcs_allowlist_unittest
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