| // Copyright 2019 The ChromiumOS Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "patchpanel/datapath.h" |
| |
| #include <linux/if_tun.h> |
| #include <linux/sockios.h> |
| #include <net/if.h> |
| #include <sys/ioctl.h> |
| |
| #include <memory> |
| #include <optional> |
| #include <string> |
| #include <string_view> |
| #include <utility> |
| #include <vector> |
| |
| #include <base/functional/bind.h> |
| #include <base/functional/callback_helpers.h> |
| #include <base/strings/string_split.h> |
| #include <base/strings/string_util.h> |
| #include <dbus/object_path.h> |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| #include <patchpanel/proto_bindings/patchpanel_service.pb.h> |
| |
| #include "patchpanel/fake_system.h" |
| #include "patchpanel/firewall.h" |
| #include "patchpanel/iptables.h" |
| #include "patchpanel/mock_process_runner.h" |
| #include "patchpanel/net_util.h" |
| #include "patchpanel/routing_service.h" |
| #include "patchpanel/shill_client.h" |
| |
| using net_base::IPv4Address; |
| using net_base::IPv4CIDR; |
| using net_base::IPv6CIDR; |
| |
| using testing::_; |
| using testing::DoAll; |
| using testing::ElementsAre; |
| using testing::ElementsAreArray; |
| using testing::Mock; |
| using testing::Return; |
| using testing::SaveArg; |
| using testing::Sequence; |
| using testing::SetArgPointee; |
| using testing::StrEq; |
| |
| namespace patchpanel { |
| namespace { |
| |
| // TODO(hugobenichi) Centralize this constant definition |
| constexpr pid_t kTestPID = -2; |
| |
| std::vector<std::string> SplitArgs(const std::string& args) { |
| return base::SplitString(args, " ", base::WhitespaceHandling::TRIM_WHITESPACE, |
| base::SplitResult::SPLIT_WANT_NONEMPTY); |
| } |
| |
| class MockFirewall : public Firewall { |
| public: |
| MockFirewall() = default; |
| ~MockFirewall() = default; |
| |
| MOCK_METHOD3(AddAcceptRules, |
| bool(patchpanel::ModifyPortRuleRequest::Protocol protocol, |
| uint16_t port, |
| const std::string& interface)); |
| MOCK_METHOD3(DeleteAcceptRules, |
| bool(Protocol protocol, |
| uint16_t port, |
| const std::string& interface)); |
| MOCK_METHOD2(AddLoopbackLockdownRules, |
| bool(Protocol protocol, uint16_t port)); |
| MOCK_METHOD2(DeleteLoopbackLockdownRules, |
| bool(Protocol protocol, uint16_t port)); |
| MOCK_METHOD6(AddIpv4ForwardRule, |
| bool(Protocol protocol, |
| const std::optional<net_base::IPv4Address>& input_ip, |
| uint16_t port, |
| const std::string& interface, |
| const net_base::IPv4Address& dst_ip, |
| uint16_t dst_port)); |
| MOCK_METHOD6(DeleteIpv4ForwardRule, |
| bool(Protocol protocol, |
| const std::optional<net_base::IPv4Address>& input_ip, |
| uint16_t port, |
| const std::string& interface, |
| const net_base::IPv4Address& dst_ip, |
| uint16_t dst_port)); |
| }; |
| |
| void Verify_ip(MockProcessRunner& runner, const std::string& args) { |
| auto argv = SplitArgs(args); |
| const auto object = argv[0]; |
| const auto action = argv[1]; |
| argv.erase(argv.begin()); |
| argv.erase(argv.begin()); |
| EXPECT_CALL(runner, |
| ip(StrEq(object), StrEq(action), ElementsAreArray(argv), _, _)); |
| } |
| |
| void Verify_ip6(MockProcessRunner& runner, const std::string& args) { |
| auto argv = SplitArgs(args); |
| const auto object = argv[0]; |
| const auto action = argv[1]; |
| argv.erase(argv.begin()); |
| argv.erase(argv.begin()); |
| EXPECT_CALL(runner, |
| ip6(StrEq(object), StrEq(action), ElementsAreArray(argv), _, _)); |
| } |
| |
| void Verify_iptables(MockProcessRunner& runner, |
| IpFamily family, |
| const std::string& args, |
| int call_count = 1) { |
| auto argv = SplitArgs(args); |
| const auto table = Iptables::TableFromName(argv[0]); |
| const auto command = Iptables::CommandFromName(argv[1]); |
| const auto chain = argv[2]; |
| argv.erase(argv.begin()); |
| argv.erase(argv.begin()); |
| argv.erase(argv.begin()); |
| ASSERT_TRUE(table.has_value()) |
| << "incorrect table name in expected args: " << args; |
| ASSERT_TRUE(command.has_value()) |
| << "incorrect command name in expected args: " << args; |
| if (family == IpFamily::kIPv4 || family == IpFamily::kDual) { |
| EXPECT_CALL(runner, iptables(*table, *command, StrEq(chain), |
| ElementsAreArray(argv), _, _, nullptr)) |
| .Times(call_count) |
| .WillRepeatedly(Return(0)); |
| } |
| if (family == IpFamily::kIPv6 || family == IpFamily::kDual) { |
| EXPECT_CALL(runner, ip6tables(*table, *command, StrEq(chain), |
| ElementsAreArray(argv), _, _, nullptr)) |
| .Times(call_count) |
| .WillRepeatedly(Return(0)); |
| } |
| } |
| |
| void Verify_iptables_in_sequence(MockProcessRunner& runner, |
| IpFamily family, |
| const std::string& args, |
| const Sequence& sequence) { |
| auto argv = SplitArgs(args); |
| const auto table = Iptables::TableFromName(argv[0]); |
| const auto command = Iptables::CommandFromName(argv[1]); |
| const auto chain = argv[2]; |
| argv.erase(argv.begin()); |
| argv.erase(argv.begin()); |
| argv.erase(argv.begin()); |
| ASSERT_TRUE(table.has_value()) |
| << "incorrect table name in expected args: " << args; |
| ASSERT_TRUE(command.has_value()) |
| << "incorrect command name in expected args: " << args; |
| if (family == IpFamily::kIPv4 || family == IpFamily::kDual) { |
| EXPECT_CALL(runner, iptables(*table, *command, StrEq(chain), |
| ElementsAreArray(argv), _, _, nullptr)) |
| .InSequence(sequence) |
| .WillOnce(Return(0)); |
| } |
| if (family == IpFamily::kIPv6 || family == IpFamily::kDual) { |
| EXPECT_CALL(runner, ip6tables(*table, *command, StrEq(chain), |
| ElementsAreArray(argv), _, _, nullptr)) |
| .InSequence(sequence) |
| .WillOnce(Return(0)); |
| } |
| } |
| |
| void Verify_ip_netns_add(MockProcessRunner& runner, |
| const std::string& netns_name) { |
| EXPECT_CALL(runner, ip_netns_add(StrEq(netns_name), _)); |
| } |
| |
| void Verify_ip_netns_attach(MockProcessRunner& runner, |
| const std::string& netns_name, |
| pid_t pid) { |
| EXPECT_CALL(runner, ip_netns_attach(StrEq(netns_name), pid, _)); |
| } |
| |
| void Verify_ip_netns_delete(MockProcessRunner& runner, |
| const std::string& netns_name) { |
| EXPECT_CALL(runner, ip_netns_delete(StrEq(netns_name), _)); |
| } |
| |
| } // namespace |
| |
| TEST(DatapathTest, Start) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| // Asserts for sysctl modifications |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kIPv4Forward, "1", "")); |
| EXPECT_CALL(system, |
| SysNetSet(System::SysNet::kIPLocalPortRange, "32768 47103", "")); |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kIPv6Forward, "1", "")); |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kIPv6ProxyNDP, "1", "")); |
| |
| static struct { |
| IpFamily family; |
| std::string args; |
| int call_count = 1; |
| } iptables_commands[] = { |
| // Asserts for iptables chain reset. |
| {IpFamily::kDual, "filter -D INPUT -j ingress_port_firewall -w"}, |
| {IpFamily::kDual, "filter -D OUTPUT -j egress_port_firewall -w"}, |
| {IpFamily::kIPv4, "filter -D OUTPUT -j drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kDual, "filter -D OUTPUT -j vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -F FORWARD -w"}, |
| {IpFamily::kDual, "mangle -F FORWARD -w"}, |
| {IpFamily::kDual, "mangle -F INPUT -w"}, |
| {IpFamily::kDual, "mangle -F OUTPUT -w"}, |
| {IpFamily::kDual, "mangle -F POSTROUTING -w"}, |
| {IpFamily::kDual, "mangle -F PREROUTING -w"}, |
| {IpFamily::kDual, |
| "mangle -D OUTPUT -m owner ! --uid-owner chronos -j skip_apply_vpn_mark " |
| "-w"}, |
| {IpFamily::kDual, "mangle -L apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -F apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -X apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -L apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -F apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -X apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -L skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -F skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -X skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -L qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -F qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -X qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -L qos_detect -w"}, |
| {IpFamily::kDual, "mangle -F qos_detect -w"}, |
| {IpFamily::kDual, "mangle -X qos_detect -w"}, |
| {IpFamily::kDual, "mangle -L qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -F qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -X qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -L qos_apply_dscp -w"}, |
| {IpFamily::kDual, "mangle -F qos_apply_dscp -w"}, |
| {IpFamily::kDual, "mangle -X qos_apply_dscp -w"}, |
| {IpFamily::kIPv4, "filter -L drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -F drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -X drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -L drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kIPv4, "filter -F drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kIPv4, "filter -X drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kDual, "filter -L vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -F vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -X vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -L vpn_accept -w"}, |
| {IpFamily::kDual, "filter -F vpn_accept -w"}, |
| {IpFamily::kDual, "filter -X vpn_accept -w"}, |
| {IpFamily::kDual, "filter -L vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -F vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -X vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -L accept_downstream_network -w"}, |
| {IpFamily::kDual, "filter -F accept_downstream_network -w"}, |
| {IpFamily::kDual, "filter -X accept_downstream_network -w"}, |
| {IpFamily::kIPv6, "filter -L enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kIPv6, "filter -F enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kIPv6, "filter -X enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j ingress_port_forwarding -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kDual, "nat -D PREROUTING -j redirect_default_dns -w"}, |
| {IpFamily::kIPv4, "nat -L redirect_dns -w"}, |
| {IpFamily::kIPv4, "nat -F redirect_dns -w"}, |
| {IpFamily::kIPv4, "nat -X redirect_dns -w"}, |
| {IpFamily::kIPv4, "nat -L apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -F apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -X apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -L apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -F apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -X apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -L apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kIPv4, "nat -F apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kIPv4, "nat -X apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kDual, "nat -L redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -F redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -X redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -L redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -F redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -X redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -L redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -F redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -X redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -L snat_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -F snat_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -X snat_chrome_dns -w"}, |
| {IpFamily::kIPv6, "nat -L snat_user_dns -w"}, |
| {IpFamily::kIPv6, "nat -F snat_user_dns -w"}, |
| {IpFamily::kIPv6, "nat -X snat_user_dns -w"}, |
| {IpFamily::kDual, "nat -F POSTROUTING -w"}, |
| {IpFamily::kDual, "nat -F OUTPUT -w"}, |
| // Asserts for SNAT rules of traffic forwarded from downstream interfaces. |
| {IpFamily::kIPv4, "filter -N drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kIPv4, "filter -I FORWARD -j drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_invalid_ipv4 -m mark --mark 0x00000001/0x00000001 " |
| "-m state " |
| "--state INVALID -j DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_invalid_ipv4 -s 100.115.92.0/23 -p tcp " |
| "--tcp-flags FIN,PSH " |
| "FIN,PSH -o wwan+ -j DROP -w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_invalid_ipv4 -s 100.115.92.0/23 -p tcp " |
| "--tcp-flags FIN,PSH " |
| "FIN,PSH -o mbimmux+ -j DROP -w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_invalid_ipv4 -s 100.115.92.0/23 -p tcp " |
| "--tcp-flags FIN,PSH " |
| "FIN,PSH -o qmapmux+ -j DROP -w"}, |
| {IpFamily::kDual, |
| "nat -A POSTROUTING -m mark --mark 0x00000001/0x00000001 -j MASQUERADE " |
| "-w"}, |
| // Asserts for AddForwardEstablishedRule |
| {IpFamily::kIPv4, |
| "filter -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT -w"}, |
| // Asserts for AddSourceIPv4DropRule() calls. |
| {IpFamily::kIPv4, "filter -N drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -I OUTPUT -j drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o eth+ -s 100.115.92.0/23 -j DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o wlan+ -s 100.115.92.0/23 -j DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o mlan+ -s 100.115.92.0/23 -j DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o usb+ -s 100.115.92.0/23 -j DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o wwan+ -s 100.115.92.0/23 -j DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o mbimmux+ -s 100.115.92.0/23 -j " |
| "DROP " |
| "-w"}, |
| {IpFamily::kIPv4, |
| "filter -I drop_guest_ipv4_prefix -o qmapmux+ -s 100.115.92.0/23 -j " |
| "DROP " |
| "-w"}, |
| // Asserts for forwarding ICMP6. |
| {IpFamily::kIPv6, "filter -A FORWARD -p ipv6-icmp -j ACCEPT -w"}, |
| // Asserts for OUTPUT CONNMARK restore rule |
| {IpFamily::kDual, |
| "mangle -A OUTPUT -j CONNMARK --restore-mark --mask 0xffff0000 -w"}, |
| // Asserts for apply_local_source_mark chain |
| {IpFamily::kDual, "mangle -N apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -A OUTPUT -j apply_local_source_mark -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m mark ! --mark 0x0/0x00003f00 -j " |
| "RETURN -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner chronos -j MARK " |
| "--set-mark 0x00008100/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner debugd -j MARK " |
| "--set-mark 0x00008200/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner cups -j MARK " |
| "--set-mark 0x00008200/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner lpadmin -j MARK " |
| "--set-mark 0x00008200/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner kerberosd -j " |
| "MARK --set-mark 0x00008400/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner kerberosd-exec " |
| "-j MARK --set-mark 0x00008400/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner tlsdate -j MARK " |
| "--set-mark 0x00008400/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner pluginvm -j " |
| "MARK --set-mark 0x00008200/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m owner --uid-owner fuse-smbfs -j " |
| "MARK --set-mark 0x00008400/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m cgroup --cgroup 0x00010001 -j " |
| "MARK --set-mark 0x00000300/0x0000ff00 -w"}, |
| {IpFamily::kDual, |
| "mangle -A apply_local_source_mark -m mark --mark 0x0/0x00003f00 -j " |
| "MARK --set-mark 0x00000400/0x00003f00 -w"}, |
| // Asserts for apply_vpn_mark chain |
| {IpFamily::kDual, "mangle -N apply_vpn_mark -w"}, |
| {IpFamily::kDual, |
| "mangle -A OUTPUT -m mark --mark 0x00008000/0x0000c000 -j " |
| "apply_vpn_mark -w"}, |
| // Asserts for redirect_dns chain creation |
| {IpFamily::kIPv4, "nat -N redirect_dns -w"}, |
| // Asserts for VPN filter chain creations |
| {IpFamily::kDual, "filter -N vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -I OUTPUT -j vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -I FORWARD -j vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -N vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -A vpn_egress_filters -j vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -N vpn_accept -w"}, |
| {IpFamily::kDual, "filter -A vpn_egress_filters -j vpn_accept -w"}, |
| // Asserts for cellular prefix enforcement chain creation |
| {IpFamily::kIPv6, "filter -N enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kDual, "filter -N drop_forward_to_bruschetta -w"}, |
| {IpFamily::kDual, "filter -N drop_output_to_bruschetta -w"}, |
| {IpFamily::kDual, "filter -A FORWARD -j drop_forward_to_bruschetta -w"}, |
| {IpFamily::kDual, "filter -I OUTPUT -j drop_output_to_bruschetta -w"}, |
| // Asserts for DNS proxy rules |
| {IpFamily::kDual, "mangle -N skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, |
| "mangle -A OUTPUT -m owner ! --uid-owner chronos -j skip_apply_vpn_mark " |
| "-w"}, |
| {IpFamily::kIPv4, "nat -N apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -N apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -N apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kIPv4, "nat -N ingress_port_forwarding -w"}, |
| {IpFamily::kIPv4, "nat -A PREROUTING -j apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -A PREROUTING -j apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -A PREROUTING -j apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kIPv4, "nat -A PREROUTING -j ingress_port_forwarding -w"}, |
| {IpFamily::kDual, "nat -N redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -N redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -N redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -A PREROUTING -j redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -A OUTPUT -j redirect_chrome_dns -w"}, |
| {IpFamily::kDual, |
| "nat -A OUTPUT -m mark --mark 0x00008000/0x0000c000 -j " |
| "redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -N snat_chrome_dns -w"}, |
| {IpFamily::kIPv6, "nat -N snat_user_dns -w"}, |
| {IpFamily::kDual, |
| "nat -A POSTROUTING -m mark --mark 0x00000100/0x00003f00 -j " |
| "snat_chrome_dns -w"}, |
| {IpFamily::kIPv6, |
| "nat -A POSTROUTING -m mark --mark 0x00008000/0x0000c000 -j " |
| "snat_user_dns -w"}, |
| // Asserts for egress and ingress port firewall chains |
| {IpFamily::kDual, "filter -N ingress_port_firewall -w"}, |
| {IpFamily::kDual, "filter -A INPUT -j ingress_port_firewall -w"}, |
| {IpFamily::kDual, "filter -N egress_port_firewall -w"}, |
| {IpFamily::kDual, "filter -A OUTPUT -j egress_port_firewall -w"}, |
| {IpFamily::kDual, "filter -N accept_downstream_network -w"}, |
| // Asserts for QoS detect chains. |
| {IpFamily::kDual, "mangle -N qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -A OUTPUT -j qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -A PREROUTING -j qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -N qos_detect -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -m mark ! --mark 0x00000000/0x000000e0 -j MARK " |
| "--set-xmark 0x00000000/0x000000e0 -w"}, |
| {IpFamily::kDual, "mangle -A qos_detect -m dscp ! --dscp 0 -j RETURN -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -j CONNMARK --restore-mark --nfmask 0x000000e0 " |
| "--ctmask 0x000000e0 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -m mark ! --mark 0x00000000/0x000000e0 -j RETURN " |
| "-w", |
| /*call_count=*/2}, |
| {IpFamily::kIPv4, |
| "mangle -A qos_detect -p icmp -j MARK --set-xmark 0x00000060/0x000000e0 " |
| "-w"}, |
| {IpFamily::kIPv6, |
| "mangle -A qos_detect -p icmpv6 -j MARK --set-xmark " |
| "0x00000060/0x000000e0 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -p tcp --syn -j MARK --set-xmark " |
| "0x00000060/0x000000e0 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -p udp --dport 53 -j MARK --set-xmark " |
| "0x00000060/0x000000e0 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -p tcp --dport 53 -j MARK --set-xmark " |
| "0x00000060/0x000000e0 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -m bpf --object-pinned " |
| "/run/patchpanel/bpf/match_dtls_srtp -j MARK --set-xmark " |
| "0x00000040/0x000000e0 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_detect -j CONNMARK --save-mark --nfmask 0x000000e0 " |
| "--ctmask 0x000000e0 -w"}, |
| {IpFamily::kDual, "mangle -N qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -A qos_detect -j qos_detect_doh -w"}, |
| // Asserts for QoS apply DSCP chain. |
| {IpFamily::kDual, "mangle -N qos_apply_dscp -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_apply_dscp -m mark --mark 0x00000020/0x000000e0 -j DSCP " |
| "--set-dscp 32 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_apply_dscp -m mark --mark 0x00000040/0x000000e0 -j DSCP " |
| "--set-dscp 34 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_apply_dscp -m mark --mark 0x00000060/0x000000e0 -j DSCP " |
| "--set-dscp 48 -w"}, |
| {IpFamily::kDual, |
| "mangle -A qos_apply_dscp -m mark --mark 0x00000080/0x000000e0 -j DSCP " |
| "--set-dscp 34 -w"}, |
| {IpFamily::kIPv6, |
| "filter -A enforce_ipv6_src_prefix -s 2000::/3 -j DROP -w"}, |
| {IpFamily::kIPv6, |
| "filter -A enforce_ipv6_src_prefix -s fc00::/7 -j DROP -w"}, |
| }; |
| for (const auto& c : iptables_commands) { |
| Verify_iptables(*runner, c.family, c.args, c.call_count); |
| } |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.Start(); |
| } |
| |
| TEST(DatapathTest, Stop) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| // Asserts for sysctl modifications |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kIPv4Forward, "0", "")); |
| EXPECT_CALL(system, |
| SysNetSet(System::SysNet::kIPLocalPortRange, "32768 61000", "")); |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kIPv6Forward, "0", "")); |
| // Asserts for iptables chain reset. |
| std::vector<std::pair<IpFamily, std::string>> iptables_commands = { |
| {IpFamily::kIPv4, "filter -D OUTPUT -j drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kDual, "filter -D OUTPUT -j vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -F FORWARD -w"}, |
| {IpFamily::kDual, "mangle -F FORWARD -w"}, |
| {IpFamily::kDual, "mangle -F INPUT -w"}, |
| {IpFamily::kDual, "mangle -F OUTPUT -w"}, |
| {IpFamily::kDual, "mangle -F POSTROUTING -w"}, |
| {IpFamily::kDual, "mangle -F PREROUTING -w"}, |
| {IpFamily::kDual, |
| "mangle -D OUTPUT -m owner ! --uid-owner chronos -j skip_apply_vpn_mark " |
| "-w"}, |
| {IpFamily::kDual, "mangle -L apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -F apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -X apply_local_source_mark -w"}, |
| {IpFamily::kDual, "mangle -L apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -F apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -X apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -L skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -F skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -X skip_apply_vpn_mark -w"}, |
| {IpFamily::kDual, "mangle -L qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -F qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -X qos_detect_static -w"}, |
| {IpFamily::kDual, "mangle -L qos_detect -w"}, |
| {IpFamily::kDual, "mangle -F qos_detect -w"}, |
| {IpFamily::kDual, "mangle -X qos_detect -w"}, |
| {IpFamily::kDual, "mangle -L qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -F qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -X qos_detect_doh -w"}, |
| {IpFamily::kDual, "mangle -L qos_apply_dscp -w"}, |
| {IpFamily::kDual, "mangle -F qos_apply_dscp -w"}, |
| {IpFamily::kDual, "mangle -X qos_apply_dscp -w"}, |
| {IpFamily::kIPv4, "filter -L drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -F drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -X drop_guest_ipv4_prefix -w"}, |
| {IpFamily::kIPv4, "filter -L drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kIPv4, "filter -F drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kIPv4, "filter -X drop_guest_invalid_ipv4 -w"}, |
| {IpFamily::kDual, "filter -L vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -F vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -X vpn_egress_filters -w"}, |
| {IpFamily::kDual, "filter -L vpn_accept -w"}, |
| {IpFamily::kDual, "filter -F vpn_accept -w"}, |
| {IpFamily::kDual, "filter -X vpn_accept -w"}, |
| {IpFamily::kDual, "filter -L vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -F vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -X vpn_lockdown -w"}, |
| {IpFamily::kDual, "filter -L accept_downstream_network -w"}, |
| {IpFamily::kDual, "filter -F accept_downstream_network -w"}, |
| {IpFamily::kDual, "filter -X accept_downstream_network -w"}, |
| {IpFamily::kDual, "filter -D INPUT -j ingress_port_firewall -w"}, |
| {IpFamily::kDual, "filter -D OUTPUT -j egress_port_firewall -w"}, |
| {IpFamily::kIPv6, "filter -L enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kIPv6, "filter -F enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kIPv6, "filter -X enforce_ipv6_src_prefix -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j ingress_port_forwarding -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -D PREROUTING -j apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kDual, "nat -D PREROUTING -j redirect_default_dns -w"}, |
| {IpFamily::kIPv4, "nat -L redirect_dns -w"}, |
| {IpFamily::kIPv4, "nat -F redirect_dns -w"}, |
| {IpFamily::kIPv4, "nat -X redirect_dns -w"}, |
| {IpFamily::kIPv4, "nat -L apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -F apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -X apply_auto_dnat_to_arc -w"}, |
| {IpFamily::kIPv4, "nat -L apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -F apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -X apply_auto_dnat_to_crostini -w"}, |
| {IpFamily::kIPv4, "nat -L apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kIPv4, "nat -F apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kIPv4, "nat -X apply_auto_dnat_to_parallels -w"}, |
| {IpFamily::kDual, "nat -L redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -F redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -X redirect_default_dns -w"}, |
| {IpFamily::kDual, "nat -L redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -F redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -X redirect_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -L redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -F redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -X redirect_user_dns -w"}, |
| {IpFamily::kDual, "nat -L snat_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -F snat_chrome_dns -w"}, |
| {IpFamily::kDual, "nat -X snat_chrome_dns -w"}, |
| {IpFamily::kIPv6, "nat -L snat_user_dns -w"}, |
| {IpFamily::kIPv6, "nat -F snat_user_dns -w"}, |
| {IpFamily::kIPv6, "nat -X snat_user_dns -w"}, |
| {IpFamily::kDual, "nat -F POSTROUTING -w"}, |
| {IpFamily::kDual, "nat -F OUTPUT -w"}, |
| }; |
| for (const auto& c : iptables_commands) { |
| Verify_iptables(*runner, c.first, c.second); |
| } |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.Stop(); |
| } |
| |
| TEST(DatapathTest, AddTUN) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| MacAddress mac = {1, 2, 3, 4, 5, 6}; |
| Subnet subnet( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 4}, 30), |
| base::DoNothing()); |
| auto ifname = datapath.AddTunTap("foo0", mac, subnet.CIDRAtOffset(1), "", |
| DeviceMode::kTun); |
| |
| EXPECT_EQ(ifname, "foo0"); |
| std::vector<ioctl_req_t> expected = { |
| TUNSETIFF, TUNSETPERSIST, SIOCSIFADDR, SIOCSIFNETMASK, |
| SIOCSIFHWADDR, SIOCGIFFLAGS, SIOCSIFFLAGS}; |
| EXPECT_EQ(system.ioctl_reqs, expected); |
| } |
| |
| TEST(DatapathTest, AddTunWithoutMACAddress) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| Subnet subnet( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 4}, 30), |
| base::DoNothing()); |
| auto ifname = datapath.AddTunTap("foo0", std::nullopt, subnet.CIDRAtOffset(1), |
| "", DeviceMode::kTun); |
| |
| EXPECT_EQ(ifname, "foo0"); |
| std::vector<ioctl_req_t> expected = {TUNSETIFF, TUNSETPERSIST, |
| SIOCSIFADDR, SIOCSIFNETMASK, |
| SIOCGIFFLAGS, SIOCSIFFLAGS}; |
| EXPECT_EQ(system.ioctl_reqs, expected); |
| } |
| |
| TEST(DatapathTest, RemoveTUN) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, "tuntap del foo0 mode tun"); |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveTunTap("foo0", DeviceMode::kTun); |
| } |
| |
| TEST(DatapathTest, AddTAP) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| MacAddress mac = {1, 2, 3, 4, 5, 6}; |
| Subnet subnet( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 4}, 30), |
| base::DoNothing()); |
| auto ifname = datapath.AddTunTap("foo0", mac, subnet.CIDRAtOffset(1), "", |
| DeviceMode::kTap); |
| |
| EXPECT_EQ(ifname, "foo0"); |
| std::vector<ioctl_req_t> expected = { |
| TUNSETIFF, TUNSETPERSIST, SIOCSIFADDR, SIOCSIFNETMASK, |
| SIOCSIFHWADDR, SIOCGIFFLAGS, SIOCSIFFLAGS}; |
| EXPECT_EQ(system.ioctl_reqs, expected); |
| } |
| |
| TEST(DatapathTest, AddTAPWithOwner) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| MacAddress mac = {1, 2, 3, 4, 5, 6}; |
| Subnet subnet( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 4}, 30), |
| base::DoNothing()); |
| auto ifname = datapath.AddTunTap("foo0", mac, subnet.CIDRAtOffset(1), "root", |
| DeviceMode::kTap); |
| |
| EXPECT_EQ(ifname, "foo0"); |
| std::vector<ioctl_req_t> expected = { |
| TUNSETIFF, TUNSETPERSIST, TUNSETOWNER, SIOCSIFADDR, |
| SIOCSIFNETMASK, SIOCSIFHWADDR, SIOCGIFFLAGS, SIOCSIFFLAGS}; |
| EXPECT_EQ(system.ioctl_reqs, expected); |
| } |
| |
| TEST(DatapathTest, AddTAPNoAddrs) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| auto ifname = datapath.AddTunTap("foo0", std::nullopt, std::nullopt, "", |
| DeviceMode::kTap); |
| |
| EXPECT_EQ(ifname, "foo0"); |
| std::vector<ioctl_req_t> expected = {TUNSETIFF, TUNSETPERSIST, SIOCGIFFLAGS, |
| SIOCSIFFLAGS}; |
| EXPECT_EQ(system.ioctl_reqs, expected); |
| } |
| |
| TEST(DatapathTest, RemoveTAP) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, "tuntap del foo0 mode tap"); |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveTunTap("foo0", DeviceMode::kTap); |
| } |
| |
| TEST(DatapathTest, NetnsAttachName) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip_netns_delete(*runner, "netns_foo"); |
| Verify_ip_netns_attach(*runner, "netns_foo", 1234); |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_TRUE(datapath.NetnsAttachName("netns_foo", 1234)); |
| } |
| |
| TEST(DatapathTest, NetnsDeleteName) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| EXPECT_CALL(*runner, ip_netns_delete(StrEq("netns_foo"), true)); |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_TRUE(datapath.NetnsDeleteName("netns_foo")); |
| } |
| |
| TEST(DatapathTest, AddBridge) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_ip(*runner, "addr add 1.1.1.1/30 brd 1.1.1.3 dev br"); |
| Verify_ip(*runner, "link set br up"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddBridge("br", *IPv4CIDR::CreateFromCIDRString("1.1.1.1/30")); |
| |
| EXPECT_EQ(1, system.ioctl_reqs.size()); |
| EXPECT_EQ(SIOCBRADDBR, system.ioctl_reqs[0]); |
| EXPECT_EQ("br", system.ioctl_ifreq_args[0].first); |
| } |
| |
| TEST(DatapathTest, RemoveBridge) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_ip(*runner, "link set br down"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveBridge("br"); |
| |
| EXPECT_EQ(1, system.ioctl_reqs.size()); |
| EXPECT_EQ(SIOCBRDELBR, system.ioctl_reqs[0]); |
| EXPECT_EQ("br", system.ioctl_ifreq_args[0].first); |
| } |
| |
| TEST(DatapathTest, AddToBridge) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| EXPECT_CALL(system, IfNametoindex("vethwlan0")).WillRepeatedly(Return(5)); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddToBridge("arcbr0", "vethwlan0"); |
| |
| EXPECT_EQ(1, system.ioctl_reqs.size()); |
| EXPECT_EQ(SIOCBRADDIF, system.ioctl_reqs[0]); |
| EXPECT_EQ("arcbr0", system.ioctl_ifreq_args[0].first); |
| EXPECT_EQ(5, system.ioctl_ifreq_args[0].second.ifr_ifindex); |
| } |
| |
| TEST(DatapathTest, ConnectVethPair) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, |
| "link add veth_foo type veth peer name peer_foo netns netns_foo"); |
| Verify_ip(*runner, |
| "addr add 100.115.92.169/30 brd 100.115.92.171 dev peer_foo"); |
| Verify_ip(*runner, |
| "link set dev peer_foo up addr 01:02:03:04:05:06 multicast on"); |
| Verify_ip(*runner, "link set veth_foo up"); |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_TRUE(datapath.ConnectVethPair( |
| kTestPID, "netns_foo", "veth_foo", "peer_foo", {1, 2, 3, 4, 5, 6}, |
| *IPv4CIDR::CreateFromCIDRString("100.115.92.169/30"), |
| /*remote_ipv6_cidr=*/std::nullopt, true)); |
| } |
| |
| TEST(DatapathTest, ConnectVethPair_StaticIPv6) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, |
| "link add veth_foo type veth peer name peer_foo netns netns_foo"); |
| Verify_ip(*runner, |
| "addr add 100.115.92.169/30 brd 100.115.92.171 dev peer_foo"); |
| Verify_ip(*runner, "addr add fd11::1234/64 dev peer_foo"); |
| Verify_ip(*runner, |
| "link set dev peer_foo up addr 01:02:03:04:05:06 multicast on"); |
| Verify_ip(*runner, "link set veth_foo up"); |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_TRUE(datapath.ConnectVethPair( |
| kTestPID, "netns_foo", "veth_foo", "peer_foo", {1, 2, 3, 4, 5, 6}, |
| *IPv4CIDR::CreateFromCIDRString("100.115.92.169/30"), |
| *IPv6CIDR::CreateFromCIDRString("fd11::1234/64"), true)); |
| } |
| |
| TEST(DatapathTest, AddVirtualInterfacePair) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, |
| "link add veth_foo type veth peer name peer_foo netns netns_foo"); |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_TRUE( |
| datapath.AddVirtualInterfacePair("netns_foo", "veth_foo", "peer_foo")); |
| } |
| |
| TEST(DatapathTest, ToggleInterface) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, "link set foo up"); |
| Verify_ip(*runner, "link set bar down"); |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_TRUE(datapath.ToggleInterface("foo", true)); |
| EXPECT_TRUE(datapath.ToggleInterface("bar", false)); |
| } |
| |
| TEST(DatapathTest, ConfigureInterface) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Datapath datapath(runner, firewall, &system); |
| |
| Verify_ip(*runner, "addr add 100.115.92.2/30 brd 100.115.92.3 dev test0"); |
| Verify_ip(*runner, |
| "link set dev test0 up addr 02:02:02:02:02:03 multicast on"); |
| MacAddress mac_addr = {2, 2, 2, 2, 2, 3}; |
| EXPECT_TRUE(datapath.ConfigureInterface( |
| "test0", mac_addr, *IPv4CIDR::CreateFromCIDRString("100.115.92.2/30"), |
| /*ipv6_cidr=*/std::nullopt, true, true)); |
| Mock::VerifyAndClearExpectations(runner); |
| |
| Verify_ip(*runner, "addr add 192.168.1.37/24 brd 192.168.1.255 dev test1"); |
| Verify_ip(*runner, "link set dev test1 up multicast off"); |
| EXPECT_TRUE(datapath.ConfigureInterface( |
| "test1", std::nullopt, *IPv4CIDR::CreateFromCIDRString("192.168.1.37/24"), |
| /*ipv6_cidr=*/std::nullopt, true, false)); |
| } |
| |
| TEST(DatapathTest, RemoveInterface) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, "link delete foo"); |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveInterface("foo"); |
| } |
| |
| TEST(DatapathTest, StartRoutingNamespace) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| MacAddress peer_mac = {1, 2, 3, 4, 5, 6}; |
| MacAddress host_mac = {6, 5, 4, 3, 2, 1}; |
| |
| Verify_ip_netns_delete(*runner, "netns_foo"); |
| Verify_ip_netns_attach(*runner, "netns_foo", kTestPID); |
| Verify_ip(*runner, |
| "link add arc_ns0 type veth peer name veth0 netns netns_foo"); |
| Verify_ip(*runner, "addr add 100.115.92.130/30 brd 100.115.92.131 dev veth0"); |
| Verify_ip(*runner, |
| "link set dev veth0 up addr 01:02:03:04:05:06 multicast off"); |
| Verify_ip(*runner, "link set arc_ns0 up"); |
| Verify_ip(*runner, |
| "addr add 100.115.92.129/30 brd 100.115.92.131 dev arc_ns0"); |
| Verify_ip(*runner, |
| "link set dev arc_ns0 up addr 06:05:04:03:02:01 multicast off"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -o arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -i arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i arc_ns0 -j PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_arc_ns0 -j MARK --set-mark " |
| "0x00000001/0x00000001 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j MARK --set-mark " |
| "0x00000200/0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j CONNMARK " |
| "--restore-mark --mask 0xffff0000 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_arc_ns0 -s 100.115.92.130 -d " |
| "100.115.92.129 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j apply_vpn_mark -w"); |
| |
| ConnectedNamespace nsinfo = {}; |
| nsinfo.pid = kTestPID; |
| nsinfo.netns_name = "netns_foo"; |
| nsinfo.source = TrafficSource::kUser; |
| nsinfo.outbound_ifname = ""; |
| nsinfo.route_on_vpn = true; |
| nsinfo.host_ifname = "arc_ns0"; |
| nsinfo.peer_ifname = "veth0"; |
| nsinfo.peer_ipv4_subnet = std::make_unique<Subnet>( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 128}, 30), |
| base::DoNothing()); |
| nsinfo.host_ipv4_cidr = *nsinfo.peer_ipv4_subnet->CIDRAtOffset(1); |
| nsinfo.peer_ipv4_cidr = *nsinfo.peer_ipv4_subnet->CIDRAtOffset(2); |
| nsinfo.static_ipv6_config = std::nullopt; |
| nsinfo.peer_mac_addr = peer_mac; |
| nsinfo.host_mac_addr = host_mac; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartRoutingNamespace(nsinfo); |
| } |
| |
| TEST(DatapathTest, StopRoutingNamespace) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -o arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -i arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i arc_ns0 -j PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X PREROUTING_arc_ns0 -w"); |
| Verify_ip_netns_delete(*runner, "netns_foo"); |
| Verify_ip(*runner, "link delete arc_ns0"); |
| |
| ConnectedNamespace nsinfo = {}; |
| nsinfo.pid = kTestPID; |
| nsinfo.netns_name = "netns_foo"; |
| nsinfo.source = TrafficSource::kUser; |
| nsinfo.outbound_ifname = ""; |
| nsinfo.route_on_vpn = true; |
| nsinfo.host_ifname = "arc_ns0"; |
| nsinfo.peer_ifname = "veth0"; |
| nsinfo.peer_ipv4_subnet = std::make_unique<Subnet>( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 128}, 30), |
| base::DoNothing()); |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopRoutingNamespace(nsinfo); |
| } |
| |
| TEST(DatapathTest, StartRoutingNamespace_StaticIPv6) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| MacAddress peer_mac = {1, 2, 3, 4, 5, 6}; |
| MacAddress host_mac = {6, 5, 4, 3, 2, 1}; |
| |
| Verify_ip_netns_delete(*runner, "netns_foo"); |
| Verify_ip_netns_attach(*runner, "netns_foo", kTestPID); |
| Verify_ip(*runner, |
| "link add arc_ns0 type veth peer name veth0 netns netns_foo"); |
| Verify_ip(*runner, "addr add 100.115.92.130/30 brd 100.115.92.131 dev veth0"); |
| Verify_ip(*runner, "addr add fd11::2/64 dev veth0"); |
| Verify_ip(*runner, |
| "link set dev veth0 up addr 01:02:03:04:05:06 multicast off"); |
| Verify_ip(*runner, "link set arc_ns0 up"); |
| Verify_ip(*runner, |
| "addr add 100.115.92.129/30 brd 100.115.92.131 dev arc_ns0"); |
| Verify_ip(*runner, "addr add fd11::1/64 dev arc_ns0"); |
| Verify_ip(*runner, |
| "link set dev arc_ns0 up addr 06:05:04:03:02:01 multicast off"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -o arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -i arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i arc_ns0 -j PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j MARK --set-mark " |
| "0x00000001/0x00000001 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j MARK --set-mark " |
| "0x00000200/0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j CONNMARK " |
| "--restore-mark --mask 0xffff0000 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_arc_ns0 -s 100.115.92.130 -d " |
| "100.115.92.129 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "mangle -A PREROUTING_arc_ns0 -s fd11::2 -d " |
| "fd11::1 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_ns0 -j apply_vpn_mark -w"); |
| |
| ConnectedNamespace nsinfo = {}; |
| nsinfo.pid = kTestPID; |
| nsinfo.netns_name = "netns_foo"; |
| nsinfo.source = TrafficSource::kUser; |
| nsinfo.outbound_ifname = ""; |
| nsinfo.route_on_vpn = true; |
| nsinfo.host_ifname = "arc_ns0"; |
| nsinfo.peer_ifname = "veth0"; |
| nsinfo.peer_ipv4_subnet = std::make_unique<Subnet>( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 128}, 30), |
| base::DoNothing()); |
| nsinfo.host_ipv4_cidr = *nsinfo.peer_ipv4_subnet->CIDRAtOffset(1); |
| nsinfo.peer_ipv4_cidr = *nsinfo.peer_ipv4_subnet->CIDRAtOffset(2); |
| nsinfo.static_ipv6_config = { |
| .host_cidr = *IPv6CIDR::CreateFromCIDRString("fd11::1/64"), |
| .peer_cidr = *IPv6CIDR::CreateFromCIDRString("fd11::2/64")}; |
| nsinfo.peer_mac_addr = peer_mac; |
| nsinfo.host_mac_addr = host_mac; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartRoutingNamespace(nsinfo); |
| } |
| |
| TEST(DatapathTest, StopRoutingNamespace_StaticIPv6) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -o arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -i arc_ns0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i arc_ns0 -j PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arc_ns0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X PREROUTING_arc_ns0 -w"); |
| Verify_ip_netns_delete(*runner, "netns_foo"); |
| Verify_ip(*runner, "link delete arc_ns0"); |
| |
| ConnectedNamespace nsinfo = {}; |
| nsinfo.pid = kTestPID; |
| nsinfo.netns_name = "netns_foo"; |
| nsinfo.source = TrafficSource::kUser; |
| nsinfo.outbound_ifname = ""; |
| nsinfo.route_on_vpn = true; |
| nsinfo.host_ifname = "arc_ns0"; |
| nsinfo.peer_ifname = "veth0"; |
| nsinfo.peer_ipv4_subnet = std::make_unique<Subnet>( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 128}, 30), |
| base::DoNothing()); |
| nsinfo.static_ipv6_config = { |
| .host_cidr = *IPv6CIDR::CreateFromCIDRString("fd11::1/64"), |
| .peer_cidr = *IPv6CIDR::CreateFromCIDRString("fd11::2/64")}; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopRoutingNamespace(nsinfo); |
| } |
| TEST(DatapathTest, StartDownstreamTetheredNetwork) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(system, IfNametoindex("wwan0")).WillRepeatedly(Return(4)); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -F accept_downstream_network -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -I INPUT -i ap0 -j accept_downstream_network -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "filter -I accept_downstream_network -p udp --dport 67 " |
| "--sport 68 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -o ap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -i ap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N PREROUTING_ap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_ap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i ap0 -j PREROUTING_ap0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_ap0 -j MARK --set-mark " |
| "0x00000001/0x00000001 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_ap0 -j MARK --set-mark " |
| "0x00002300/0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_ap0 -j MARK --set-mark " |
| "0x03ec0000/0xffff0000 -w"); |
| Verify_ip(*runner, "addr add 172.17.49.1/24 brd 172.17.49.255 dev ap0"); |
| Verify_ip(*runner, "link set dev ap0 up multicast on"); |
| |
| DownstreamNetworkInfo info; |
| info.topology = DownstreamNetworkTopology::kTethering; |
| info.upstream_device = ShillClient::Device(); |
| info.upstream_device->ifname = "wwan0"; |
| info.downstream_ifname = "ap0"; |
| info.ipv4_cidr = *IPv4CIDR::CreateFromCIDRString("172.17.49.1/24"); |
| info.enable_ipv4_dhcp = true; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartDownstreamNetwork(info); |
| } |
| |
| TEST(DatapathTest, StartDownstreamLocalOnlyNetwork) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(*runner, iptables).Times(0); |
| EXPECT_CALL(*runner, ip6tables).Times(0); |
| EXPECT_CALL(*runner, ip).Times(0); |
| |
| DownstreamNetworkInfo info; |
| info.topology = DownstreamNetworkTopology::kLocalOnly; |
| info.upstream_device = ShillClient::Device(); |
| info.upstream_device->ifname = "wwan0"; |
| info.downstream_ifname = "ap0"; |
| info.ipv4_cidr = *IPv4CIDR::CreateFromCIDRString("172.17.49.1/24"); |
| info.enable_ipv4_dhcp = true; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartDownstreamNetwork(info); |
| } |
| |
| TEST(DatapathTest, StopDownstreamTetheredNetwork) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -F accept_downstream_network -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D INPUT -i ap0 -j accept_downstream_network -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -o ap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -i ap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i ap0 -j PREROUTING_ap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_ap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X PREROUTING_ap0 -w"); |
| EXPECT_CALL(*runner, ip(_, _, _, _, _)).Times(0); |
| |
| DownstreamNetworkInfo info; |
| info.topology = DownstreamNetworkTopology::kTethering; |
| info.upstream_device = ShillClient::Device(); |
| info.upstream_device->ifname = "wwan0"; |
| info.downstream_ifname = "ap0"; |
| info.ipv4_cidr = *IPv4CIDR::CreateFromCIDRString("172.17.49.1/24"); |
| info.enable_ipv4_dhcp = true; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopDownstreamNetwork(info); |
| } |
| |
| TEST(DatapathTest, StopDownstreamLocalOnlyNetwork) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(*runner, iptables).Times(0); |
| EXPECT_CALL(*runner, ip6tables).Times(0); |
| EXPECT_CALL(*runner, ip).Times(0); |
| |
| DownstreamNetworkInfo info; |
| info.topology = DownstreamNetworkTopology::kLocalOnly; |
| info.upstream_device = ShillClient::Device(); |
| info.upstream_device->ifname = "wwan0"; |
| info.downstream_ifname = "ap0"; |
| info.ipv4_cidr = *IPv4CIDR::CreateFromCIDRString("172.17.49.1/24"); |
| info.enable_ipv4_dhcp = true; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopDownstreamNetwork(info); |
| } |
| |
| TEST(DatapathTest, StartRoutingNewNamespace) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| MacAddress mac = {1, 2, 3, 4, 5, 6}; |
| |
| // The running may fail at checking ScopedNS.IsValid() in |
| // Datapath::ConnectVethPair(), so we only check if `ip netns add` is invoked |
| // correctly here. |
| Verify_ip_netns_add(*runner, "netns_foo"); |
| |
| ConnectedNamespace nsinfo = {}; |
| nsinfo.pid = ConnectedNamespace::kNewNetnsPid; |
| nsinfo.netns_name = "netns_foo"; |
| nsinfo.source = TrafficSource::kUser; |
| nsinfo.outbound_ifname = ""; |
| nsinfo.route_on_vpn = true; |
| nsinfo.host_ifname = "arc_ns0"; |
| nsinfo.peer_ifname = "veth0"; |
| nsinfo.peer_ipv4_subnet = std::make_unique<Subnet>( |
| *net_base::IPv4CIDR::CreateFromAddressAndPrefix({100, 115, 92, 128}, 30), |
| base::DoNothing()); |
| nsinfo.peer_mac_addr = mac; |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartRoutingNamespace(nsinfo); |
| } |
| |
| TEST(DatapathTest, StartRoutingDevice) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| EXPECT_CALL(system, IfNametoindex("eth0")).WillRepeatedly(Return(2)); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -o arc_eth0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -i arc_eth0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N PREROUTING_arc_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arc_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i arc_eth0 -j PREROUTING_arc_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_arc_eth0 -j MARK --set-mark " |
| "0x00000001/0x00000001 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_eth0 -j MARK --set-mark " |
| "0x00002000/0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arc_eth0 -j MARK --set-mark " |
| "0x03ea0000/0xffff0000 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartRoutingDevice(eth_device, "arc_eth0", TrafficSource::kArc); |
| } |
| |
| TEST(DatapathTest, StartRoutingDeviceAsUser) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -o vmtap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -i vmtap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N PREROUTING_vmtap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_vmtap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i vmtap0 -j PREROUTING_vmtap0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_vmtap0 -j MARK --set-mark " |
| "0x00000001/0x00000001 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_vmtap0 -j MARK --set-mark " |
| "0x00002100/0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_vmtap0 -j CONNMARK --restore-mark " |
| "--mask 0xffff0000 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_vmtap0 -j skip_apply_vpn_mark -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_vmtap0 -j apply_vpn_mark -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartRoutingDeviceAsUser("vmtap0", TrafficSource::kCrostiniVM, |
| IPv4Address(1, 2, 3, 4), |
| /*int_ipv4_addr=*/std::nullopt); |
| } |
| |
| TEST(DatapathTest, StopRoutingDevice) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -o arc_eth0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -i arc_eth0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i arc_eth0 -j PREROUTING_arc_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arc_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X PREROUTING_arc_eth0 -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopRoutingDevice("arc_eth0", TrafficSource::kArc); |
| } |
| |
| TEST(DatapathTest, StopRoutingDeviceAsUser) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -o vmtap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -i vmtap0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i vmtap0 -j PREROUTING_vmtap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_vmtap0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X PREROUTING_vmtap0 -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopRoutingDevice("vmtap0", TrafficSource::kCrostiniVM); |
| } |
| |
| TEST(DatapathTest, StartStopConnectionPinning) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Datapath datapath(runner, firewall, &system); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| // Setup |
| EXPECT_CALL(system, IfNametoindex("eth0")).WillRepeatedly(Return(3)); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N POSTROUTING_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F POSTROUTING_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING -o eth0 -j POSTROUTING_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING_eth0 -j CONNMARK --set-mark " |
| "0x03eb0000/0xffff0000 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING_eth0 -j CONNMARK " |
| "--save-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i eth0 -j CONNMARK " |
| "--restore-mark --mask 0x00003f00 -w"); |
| datapath.StartConnectionPinning(eth_device); |
| Mock::VerifyAndClearExpectations(runner); |
| |
| // Teardown |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F POSTROUTING_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D POSTROUTING -o eth0 -j POSTROUTING_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X POSTROUTING_eth0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i eth0 -j CONNMARK " |
| "--restore-mark --mask 0x00003f00 -w"); |
| datapath.StopConnectionPinning(eth_device); |
| } |
| |
| TEST(DatapathTest, StartStopVpnRouting_ArcVpn) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Datapath datapath(runner, firewall, &system); |
| |
| ShillClient::Device vpn_device; |
| vpn_device.ifname = "arcbr0"; |
| |
| // Setup |
| EXPECT_CALL(system, IfNametoindex("arcbr0")).WillRepeatedly(Return(5)); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N POSTROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F POSTROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING -o arcbr0 -j POSTROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING_arcbr0 -j CONNMARK " |
| "--set-mark 0x03ed0000/0xffff0000 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -A apply_vpn_mark -m mark ! --mark 0x0/0xffff0000 -j ACCEPT -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -A apply_vpn_mark -j MARK --set-mark 0x03ed0000/0xffff0000 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING_arcbr0 -j CONNMARK " |
| "--save-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i arcbr0 -j CONNMARK " |
| "--restore-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A POSTROUTING -o arcbr0 -j MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A OUTPUT -m mark ! --mark 0x00008000/0x0000c000 -j " |
| "redirect_dns -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A vpn_accept -m mark " |
| "--mark 0x03ed0000/0xffff0000 -j ACCEPT -w"); |
| datapath.StartVpnRouting(vpn_device); |
| Mock::VerifyAndClearExpectations(runner); |
| |
| // Teardown |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F POSTROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D POSTROUTING -o arcbr0 -j POSTROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X POSTROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F apply_vpn_mark -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i arcbr0 -j CONNMARK " |
| "--restore-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D POSTROUTING -o arcbr0 -j MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D OUTPUT -m mark ! --mark 0x00008000/0x0000c000 -j " |
| "redirect_dns -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "filter -F vpn_accept -w"); |
| datapath.StopVpnRouting(vpn_device); |
| } |
| |
| TEST(DatapathTest, StartStopVpnRouting_HostVpn) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Datapath datapath(runner, firewall, &system); |
| |
| ShillClient::Device vpn_device; |
| vpn_device.ifname = "tun0"; |
| |
| // Setup |
| EXPECT_CALL(system, IfNametoindex("tun0")).WillRepeatedly(Return(5)); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N POSTROUTING_tun0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F POSTROUTING_tun0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING -o tun0 -j POSTROUTING_tun0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING_tun0 -j CONNMARK --set-mark " |
| "0x03ed0000/0xffff0000 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -A apply_vpn_mark -m mark ! --mark 0x0/0xffff0000 -j ACCEPT -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -A apply_vpn_mark -j MARK --set-mark 0x03ed0000/0xffff0000 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING_tun0 -j CONNMARK " |
| "--save-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i tun0 -j CONNMARK " |
| "--restore-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A POSTROUTING -o tun0 -j MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A OUTPUT -m mark ! --mark 0x00008000/0x0000c000 -j " |
| "redirect_dns -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A vpn_accept -m mark " |
| "--mark 0x03ed0000/0xffff0000 -j ACCEPT -w"); |
| // Start arcbr0 routing |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -o arcbr0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A FORWARD -i arcbr0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -N PREROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING -i arcbr0 -j PREROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "mangle -A PREROUTING_arcbr0 -j MARK --set-mark " |
| "0x00000001/0x00000001 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arcbr0 -j MARK --set-mark " |
| "0x00002000/0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A PREROUTING_arcbr0 -j MARK --set-mark " |
| "0x03ed0000/0xffff0000 -w"); |
| datapath.StartVpnRouting(vpn_device); |
| Mock::VerifyAndClearExpectations(runner); |
| |
| // Teardown |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F POSTROUTING_tun0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D POSTROUTING -o tun0 -j POSTROUTING_tun0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X POSTROUTING_tun0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F apply_vpn_mark -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i tun0 -j CONNMARK " |
| "--restore-mark --mask 0x00003f00 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D POSTROUTING -o tun0 -j MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D OUTPUT -m mark ! --mark 0x00008000/0x0000c000 -j " |
| "redirect_dns -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "filter -F vpn_accept -w"); |
| // Stop arcbr0 routing |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -o arcbr0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -D FORWARD -i arcbr0 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D PREROUTING -i arcbr0 -j PREROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -F PREROUTING_arcbr0 -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "mangle -X PREROUTING_arcbr0 -w"); |
| datapath.StopVpnRouting(vpn_device); |
| } |
| |
| TEST(DatapathTest, AddInboundIPv4DNATArc) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_arc -i eth0 -m socket " |
| "--nowildcard -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_arc -i eth0 -p tcp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_arc -i eth0 -p udp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddInboundIPv4DNAT(AutoDNATTarget::kArc, eth_device, |
| IPv4Address(1, 2, 3, 4)); |
| } |
| |
| TEST(DatapathTest, RemoveInboundIPv4DNATArc) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_arc -i eth0 -m socket " |
| "--nowildcard -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_arc -i eth0 -p tcp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_arc -i eth0 -p udp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveInboundIPv4DNAT(AutoDNATTarget::kArc, eth_device, |
| IPv4Address(1, 2, 3, 4)); |
| } |
| |
| TEST(DatapathTest, AddInboundIPv4DNATCrostini) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_crostini -i eth0 -m socket " |
| "--nowildcard -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_crostini -i eth0 -p tcp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_crostini -i eth0 -p udp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddInboundIPv4DNAT(AutoDNATTarget::kCrostini, eth_device, |
| IPv4Address(1, 2, 3, 4)); |
| } |
| |
| TEST(DatapathTest, RemoveInboundIPv4DNATCrostini) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_crostini -i eth0 -m socket " |
| "--nowildcard -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_crostini -i eth0 -p tcp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_crostini -i eth0 -p udp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveInboundIPv4DNAT(AutoDNATTarget::kCrostini, eth_device, |
| IPv4Address(1, 2, 3, 4)); |
| } |
| |
| TEST(DatapathTest, AddInboundIPv4DNATParallelsVm) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_parallels -i eth0 -m socket " |
| "--nowildcard -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_parallels -i eth0 -p tcp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A apply_auto_dnat_to_parallels -i eth0 -p udp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddInboundIPv4DNAT(AutoDNATTarget::kParallels, eth_device, |
| IPv4Address(1, 2, 3, 4)); |
| } |
| |
| TEST(DatapathTest, RemoveInboundIPv4DNATParallelsVm) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_parallels -i eth0 -m socket " |
| "--nowildcard -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_parallels -i eth0 -p tcp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D apply_auto_dnat_to_parallels -i eth0 -p udp -j DNAT " |
| "--to-destination 1.2.3.4 -w"); |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveInboundIPv4DNAT(AutoDNATTarget::kParallels, eth_device, |
| IPv4Address(1, 2, 3, 4)); |
| } |
| |
| TEST(DatapathTest, MaskInterfaceFlags) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| bool result = datapath.MaskInterfaceFlags("foo0", IFF_DEBUG); |
| |
| EXPECT_TRUE(result); |
| std::vector<ioctl_req_t> expected = {SIOCGIFFLAGS, SIOCSIFFLAGS}; |
| EXPECT_EQ(system.ioctl_reqs, expected); |
| } |
| |
| TEST(DatapathTest, AddIPv6HostRoute) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip6(*runner, "route replace 2001:da8:e00::1234/128 dev eth0"); |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddIPv6HostRoute("eth0", *net_base::IPv6CIDR::CreateFromCIDRString( |
| "2001:da8:e00::1234/128")); |
| } |
| |
| TEST(DatapathTest, AddIPv4RouteToTable) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, "route add 192.0.2.2/24 dev eth0 table 123"); |
| Datapath datapath(runner, firewall, &system); |
| datapath.AddIPv4RouteToTable( |
| "eth0", *net_base::IPv4CIDR::CreateFromCIDRString("192.0.2.2/24"), 123); |
| } |
| |
| TEST(DatapathTest, DeleteIPv4RouteFromTable) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Verify_ip(*runner, "route del 192.0.2.2/24 dev eth0 table 123"); |
| Datapath datapath(runner, firewall, &system); |
| datapath.DeleteIPv4RouteFromTable( |
| "eth0", *net_base::IPv4CIDR::CreateFromCIDRString("192.0.2.2/24"), 123); |
| } |
| |
| TEST(DatapathTest, AddIPv4Route) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| |
| datapath.AddIPv4Route(IPv4Address(192, 168, 1, 1), |
| *IPv4CIDR::CreateFromCIDRString("100.115.93.0/24")); |
| datapath.DeleteIPv4Route(IPv4Address(192, 168, 1, 1), |
| *IPv4CIDR::CreateFromCIDRString("100.115.93.0/24")); |
| |
| std::vector<ioctl_req_t> expected_reqs = {SIOCADDRT, SIOCDELRT}; |
| EXPECT_EQ(expected_reqs, system.ioctl_reqs); |
| |
| std::string route1 = |
| "{rt_dst: {family: AF_INET, port: 0, addr: 100.115.93.0}, rt_genmask: " |
| "{family: AF_INET, port: 0, addr: 255.255.255.0}, rt_gateway: {family: " |
| "AF_INET, port: 0, addr: 192.168.1.1}, rt_dev: null, rt_flags: RTF_UP | " |
| "RTF_GATEWAY}"; |
| std::vector<std::string> captured_routes; |
| for (const auto& route : system.ioctl_rtentry_args) { |
| std::ostringstream stream; |
| stream << route.second; |
| captured_routes.emplace_back(stream.str()); |
| } |
| EXPECT_EQ(route1, captured_routes[0]); |
| EXPECT_EQ(route1, captured_routes[1]); |
| } |
| |
| TEST(DatapathTest, RedirectDnsRules) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| ShillClient::Device eth_device; |
| eth_device.ifname = "eth0"; |
| ShillClient::Device wlan_device; |
| wlan_device.ifname = "wlan0"; |
| |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_dns -p tcp --dport 53 -o eth0 -j DNAT " |
| "--to-destination 192.168.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_dns -p udp --dport 53 -o eth0 -j DNAT " |
| "--to-destination 192.168.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_dns -p tcp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 1.1.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_dns -p udp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 1.1.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_dns -p tcp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 1.1.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_dns -p udp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 1.1.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_dns -p tcp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 8.8.8.8 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_dns -p udp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 8.8.8.8 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_dns -p tcp --dport 53 -o eth0 -j DNAT " |
| "--to-destination 192.168.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_dns -p udp --dport 53 -o eth0 -j DNAT " |
| "--to-destination 192.168.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_dns -p tcp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 8.8.8.8 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_dns -p udp --dport 53 -o wlan0 -j DNAT " |
| "--to-destination 8.8.8.8 -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.RemoveRedirectDnsRule(wlan_device); |
| datapath.RemoveRedirectDnsRule(ShillClient::Device()); |
| datapath.AddRedirectDnsRule(eth_device, "192.168.1.1"); |
| datapath.AddRedirectDnsRule(wlan_device, "1.1.1.1"); |
| datapath.AddRedirectDnsRule(wlan_device, "8.8.8.8"); |
| datapath.RemoveRedirectDnsRule(eth_device); |
| datapath.RemoveRedirectDnsRule(wlan_device); |
| } |
| |
| TEST(DatapathTest, DumpIptables) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(*runner, |
| iptables(Iptables::Table::kMangle, Iptables::Command::kL, |
| StrEq(""), ElementsAre("-x", "-v", "-n", "-w"), _, _, _)) |
| .WillOnce(DoAll(SetArgPointee<6>("<iptables output>"), Return(0))); |
| EXPECT_CALL(*runner, ip6tables(Iptables::Table::kMangle, |
| Iptables::Command::kL, StrEq(""), |
| ElementsAre("-x", "-v", "-n", "-w"), _, _, _)) |
| .WillOnce(DoAll(SetArgPointee<6>("<ip6tables output>"), Return(0))); |
| |
| Datapath datapath(runner, firewall, &system); |
| EXPECT_EQ("<iptables output>", |
| datapath.DumpIptables(IpFamily::kIPv4, Iptables::Table::kMangle)); |
| EXPECT_EQ("<ip6tables output>", |
| datapath.DumpIptables(IpFamily::kIPv6, Iptables::Table::kMangle)); |
| EXPECT_EQ("", |
| datapath.DumpIptables(IpFamily::kDual, Iptables::Table::kMangle)); |
| } |
| |
| TEST(DatapathTest, SetVpnLockdown) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "filter -A vpn_lockdown -m mark --mark 0x00008000/0x0000c000 " |
| "-j REJECT -w"); |
| Verify_iptables(*runner, IpFamily::kDual, "filter -F vpn_lockdown -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.SetVpnLockdown(true); |
| datapath.SetVpnLockdown(false); |
| } |
| |
| TEST(DatapathTest, SetConntrackHelpers) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kConntrackHelper, "1", "")); |
| EXPECT_CALL(system, SysNetSet(System::SysNet::kConntrackHelper, "0", "")); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.SetConntrackHelpers(true); |
| datapath.SetConntrackHelpers(false); |
| } |
| |
| TEST(DatapathTest, StartDnsRedirection_Default) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A redirect_default_dns -i vmtap0 -p udp --dport 53 -j " |
| "DNAT --to-destination 100.115.92.130 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A redirect_default_dns -i vmtap0 -p tcp --dport 53 -j " |
| "DNAT --to-destination 100.115.92.130 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -A redirect_default_dns -i vmtap0 -p udp --dport 53 -j " |
| "DNAT --to-destination ::1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -A redirect_default_dns -i vmtap0 -p tcp --dport 53 -j " |
| "DNAT --to-destination ::1 -w"); |
| |
| DnsRedirectionRule rule4 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::DEFAULT, |
| .input_ifname = "vmtap0", |
| .proxy_address = *net_base::IPAddress::CreateFromString("100.115.92.130"), |
| }; |
| DnsRedirectionRule rule6 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::DEFAULT, |
| .input_ifname = "vmtap0", |
| .proxy_address = *net_base::IPAddress::CreateFromString("::1"), |
| }; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartDnsRedirection(rule4); |
| datapath.StartDnsRedirection(rule6); |
| } |
| |
| TEST(DatapathTest, StartDnsRedirection_User) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Sequence sequence; |
| |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv4, |
| "nat -A redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 3 --packet " |
| "0 -j DNAT --to-destination 8.8.8.8 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv4, |
| "nat -A redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 8.4.8.4 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv4, |
| "nat -A redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 1.1.1.1 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv4, |
| "nat -A redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 3 --packet " |
| "0 -j DNAT --to-destination 8.8.8.8 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv4, |
| "nat -A redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 8.4.8.4 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv4, |
| "nat -A redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 1.1.1.1 -w", |
| sequence); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A redirect_user_dns -p udp --dport 53 -j DNAT " |
| "--to-destination 100.115.92.130 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -A redirect_user_dns -p tcp --dport 53 -j DNAT " |
| "--to-destination 100.115.92.130 -w"); |
| |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv6, |
| "nat -A redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8888 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv6, |
| "nat -A redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8844 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv6, |
| "nat -A redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8888 -w", |
| sequence); |
| Verify_iptables_in_sequence( |
| *runner, IpFamily::kIPv6, |
| "nat -A redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8844 -w", |
| sequence); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -A snat_user_dns -p udp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -A snat_user_dns -p tcp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -A redirect_user_dns -p udp --dport 53 -j DNAT " |
| "--to-destination ::1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -A redirect_user_dns -p tcp --dport 53 -j DNAT " |
| "--to-destination ::1 -w"); |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "nat -A snat_chrome_dns -p udp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "nat -A snat_chrome_dns -p tcp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -A skip_apply_vpn_mark -p udp --dport 53 -j ACCEPT -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -A skip_apply_vpn_mark -p tcp --dport 53 -j ACCEPT -w"); |
| |
| DnsRedirectionRule rule4 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::USER, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("100.115.92.130"), |
| .nameservers = {*net_base::IPAddress::CreateFromString("8.8.8.8"), |
| *net_base::IPAddress::CreateFromString("8.4.8.4"), |
| *net_base::IPAddress::CreateFromString("1.1.1.1")}, |
| }; |
| DnsRedirectionRule rule6 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::USER, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("::1"), |
| .nameservers = |
| {*net_base::IPAddress::CreateFromString("2001:4860:4860::8888"), |
| *net_base::IPAddress::CreateFromString("2001:4860:4860::8844")}, |
| }; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartDnsRedirection(rule4); |
| datapath.StartDnsRedirection(rule6); |
| } |
| |
| TEST(DatapathTest, StartDnsRedirection_ExcludeDestination) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_chrome_dns -p udp ! -d 100.115.92.130 " |
| "--dport 53 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_chrome_dns -p tcp ! -d 100.115.92.130 " |
| "--dport 53 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_user_dns -p udp ! -d 100.115.92.130 --dport " |
| "53 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -I redirect_user_dns -p tcp ! -d 100.115.92.130 --dport " |
| "53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -I redirect_chrome_dns -p udp ! -d ::1 --dport 53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -I redirect_chrome_dns -p tcp ! -d ::1 --dport 53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -I redirect_user_dns -p udp ! -d ::1 --dport 53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -I redirect_user_dns -p tcp ! -d ::1 --dport 53 -j RETURN -w"); |
| |
| DnsRedirectionRule rule4 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::EXCLUDE_DESTINATION, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("100.115.92.130"), |
| }; |
| DnsRedirectionRule rule6 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::EXCLUDE_DESTINATION, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("::1"), |
| }; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StartDnsRedirection(rule4); |
| datapath.StartDnsRedirection(rule6); |
| } |
| |
| TEST(DatapathTest, StopDnsRedirection_Default) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_default_dns -i vmtap0 -p udp --dport 53 -j " |
| "DNAT --to-destination 100.115.92.130 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_default_dns -i vmtap0 -p tcp --dport 53 -j " |
| "DNAT --to-destination 100.115.92.130 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -D redirect_default_dns -i vmtap0 -p udp --dport 53 -j " |
| "DNAT --to-destination ::1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -D redirect_default_dns -i vmtap0 -p tcp --dport 53 -j " |
| "DNAT --to-destination ::1 -w"); |
| |
| DnsRedirectionRule rule4 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::DEFAULT, |
| .input_ifname = "vmtap0", |
| .proxy_address = *net_base::IPAddress::CreateFromString("100.115.92.130"), |
| }; |
| DnsRedirectionRule rule6 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::DEFAULT, |
| .input_ifname = "vmtap0", |
| .proxy_address = *net_base::IPAddress::CreateFromString("::1"), |
| }; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopDnsRedirection(rule4); |
| datapath.StopDnsRedirection(rule6); |
| } |
| |
| TEST(DatapathTest, StopDnsRedirection_User) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables( |
| *runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 3 --packet " |
| "0 -j DNAT --to-destination 8.8.8.8 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 8.4.8.4 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 1.1.1.1 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 3 --packet " |
| "0 -j DNAT --to-destination 8.8.8.8 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 8.4.8.4 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 1.1.1.1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_user_dns -p udp --dport 53 -j DNAT " |
| "--to-destination 100.115.92.130 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_user_dns -p tcp --dport 53 -j DNAT " |
| "--to-destination 100.115.92.130 -w"); |
| |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8888 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_chrome_dns -p udp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8844 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 2 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8888 -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_chrome_dns -p tcp --dport 53 -m owner " |
| "--uid-owner chronos -m statistic --mode nth --every 1 --packet " |
| "0 -j DNAT --to-destination 2001:4860:4860::8844 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -D snat_user_dns -p udp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -D snat_user_dns -p tcp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -D redirect_user_dns -p udp --dport 53 -j DNAT " |
| "--to-destination ::1 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "nat -D redirect_user_dns -p tcp --dport 53 -j DNAT " |
| "--to-destination ::1 -w"); |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "nat -D snat_chrome_dns -p udp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables(*runner, IpFamily::kDual, |
| "nat -D snat_chrome_dns -p tcp --dport 53 -j " |
| "MASQUERADE -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -D skip_apply_vpn_mark -p udp --dport 53 -j ACCEPT -w"); |
| Verify_iptables( |
| *runner, IpFamily::kDual, |
| "mangle -D skip_apply_vpn_mark -p tcp --dport 53 -j ACCEPT -w"); |
| |
| DnsRedirectionRule rule4 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::USER, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("100.115.92.130"), |
| .nameservers = {*net_base::IPAddress::CreateFromString("8.8.8.8"), |
| *net_base::IPAddress::CreateFromString("8.4.8.4"), |
| *net_base::IPAddress::CreateFromString("1.1.1.1")}, |
| }; |
| DnsRedirectionRule rule6 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::USER, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("::1"), |
| .nameservers = |
| {*net_base::IPAddress::CreateFromString("2001:4860:4860::8888"), |
| *net_base::IPAddress::CreateFromString("2001:4860:4860::8844")}, |
| }; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopDnsRedirection(rule4); |
| datapath.StopDnsRedirection(rule6); |
| } |
| |
| TEST(DatapathTest, StopDnsRedirection_ExcludeDestination) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p udp ! -d 100.115.92.130 " |
| "--dport 53 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_chrome_dns -p tcp ! -d 100.115.92.130 " |
| "--dport 53 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_user_dns -p udp ! -d 100.115.92.130 --dport " |
| "53 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv4, |
| "nat -D redirect_user_dns -p tcp ! -d 100.115.92.130 --dport " |
| "53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_chrome_dns -p udp ! -d ::1 --dport 53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_chrome_dns -p tcp ! -d ::1 --dport 53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_user_dns -p udp ! -d ::1 --dport 53 -j RETURN -w"); |
| Verify_iptables( |
| *runner, IpFamily::kIPv6, |
| "nat -D redirect_user_dns -p tcp ! -d ::1 --dport 53 -j RETURN -w"); |
| |
| DnsRedirectionRule rule4 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::EXCLUDE_DESTINATION, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("100.115.92.130"), |
| }; |
| DnsRedirectionRule rule6 = { |
| .type = patchpanel::SetDnsRedirectionRuleRequest::EXCLUDE_DESTINATION, |
| .input_ifname = "", |
| .proxy_address = *net_base::IPAddress::CreateFromString("::1"), |
| }; |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.StopDnsRedirection(rule4); |
| datapath.StopDnsRedirection(rule6); |
| } |
| |
| TEST(DatapathTest, PrefixEnforcement) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| Datapath datapath(runner, firewall, &system); |
| |
| ShillClient::Device cell_device; |
| cell_device.ifname = "wwan0"; |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -N egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -I OUTPUT -o wwan0 -j egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -F egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A egress_wwan0 -j enforce_ipv6_src_prefix -w"); |
| datapath.StartSourceIPv6PrefixEnforcement(cell_device); |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -F egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A egress_wwan0 -s 2001:db8:1:1::/64 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A egress_wwan0 -j enforce_ipv6_src_prefix -w"); |
| datapath.UpdateSourceEnforcementIPv6Prefix( |
| cell_device, |
| *net_base::IPv6CIDR::CreateFromCIDRString("2001:db8:1:1::/64")); |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -F egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A egress_wwan0 -j enforce_ipv6_src_prefix -w"); |
| datapath.UpdateSourceEnforcementIPv6Prefix(cell_device, std::nullopt); |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -F egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A egress_wwan0 -s 2001:db8:1:2::/64 -j RETURN -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A egress_wwan0 -j enforce_ipv6_src_prefix -w"); |
| datapath.UpdateSourceEnforcementIPv6Prefix( |
| cell_device, |
| *net_base::IPv6CIDR::CreateFromCIDRString("2001:db8:1:2::/64")); |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -D OUTPUT -o wwan0 -j egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -F egress_wwan0 -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, "filter -X egress_wwan0 -w"); |
| datapath.StopSourceIPv6PrefixEnforcement(cell_device); |
| } |
| |
| TEST(DatapathTest, SetRouteLocalnet) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(system, |
| SysNetSet(System::SysNet::kIPv4RouteLocalnet, "1", "eth0")); |
| EXPECT_CALL(system, |
| SysNetSet(System::SysNet::kIPv4RouteLocalnet, "0", "wlan0")); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.SetRouteLocalnet("eth0", true); |
| datapath.SetRouteLocalnet("wlan0", false); |
| } |
| |
| TEST(DatapathTest, ModprobeAll) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| EXPECT_CALL(*runner, modprobe_all(ElementsAre("ip6table_filter", "ah6", |
| "esp6", "nf_nat_ftp"), |
| _)); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.ModprobeAll({"ip6table_filter", "ah6", "esp6", "nf_nat_ftp"}); |
| } |
| |
| TEST(DatapathTest, ModifyPortRule) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| patchpanel::ModifyPortRuleRequest request; |
| request.set_input_ifname("eth0"); |
| request.set_input_dst_ip("192.168.1.1"); |
| request.set_input_dst_port(80); |
| request.set_dst_ip("100.115.92.14"); |
| request.set_dst_port(8080); |
| |
| // Invalid request #1 |
| request.set_op(patchpanel::ModifyPortRuleRequest::INVALID_OPERATION); |
| request.set_proto(patchpanel::ModifyPortRuleRequest::TCP); |
| request.set_type(patchpanel::ModifyPortRuleRequest::ACCESS); |
| EXPECT_CALL(*firewall, AddAcceptRules(_, _, _)).Times(0); |
| EXPECT_FALSE(datapath.ModifyPortRule(request)); |
| Mock::VerifyAndClearExpectations(firewall); |
| |
| // Invalid request #2 |
| request.set_op(patchpanel::ModifyPortRuleRequest::CREATE); |
| request.set_proto(patchpanel::ModifyPortRuleRequest::INVALID_PROTOCOL); |
| request.set_type(patchpanel::ModifyPortRuleRequest::ACCESS); |
| EXPECT_CALL(*firewall, AddAcceptRules(_, _, _)).Times(0); |
| EXPECT_FALSE(datapath.ModifyPortRule(request)); |
| Mock::VerifyAndClearExpectations(firewall); |
| |
| // Invalid request #3 |
| request.set_op(patchpanel::ModifyPortRuleRequest::CREATE); |
| request.set_proto(patchpanel::ModifyPortRuleRequest::TCP); |
| request.set_type(patchpanel::ModifyPortRuleRequest::INVALID_RULE_TYPE); |
| EXPECT_CALL(*firewall, AddAcceptRules(_, _, _)).Times(0); |
| EXPECT_FALSE(datapath.ModifyPortRule(request)); |
| Mock::VerifyAndClearExpectations(firewall); |
| } |
| |
| TEST(DatapathTest, EnableQoSDetection) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A qos_detect_static -j qos_detect -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.EnableQoSDetection(); |
| } |
| |
| TEST(DatapathTEST, DisableQoSDetection) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D qos_detect_static -j qos_detect -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.DisableQoSDetection(); |
| } |
| |
| TEST(DatapathTest, EnableQoSApplyingDSCP) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -A POSTROUTING -o wlan0 -j qos_apply_dscp -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.EnableQoSApplyingDSCP("wlan0"); |
| } |
| |
| TEST(DatapathTest, DisableQoSApplyingDSCP) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Verify_iptables(*runner, IpFamily::kDual, |
| "mangle -D POSTROUTING -o wlan0 -j qos_apply_dscp -w"); |
| |
| Datapath datapath(runner, firewall, &system); |
| datapath.DisableQoSApplyingDSCP("wlan0"); |
| } |
| |
| TEST(DatapathTest, UpdateDoHProvidersForQoSIPv4) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| |
| const std::vector<net_base::IPAddress> ipv4_input = { |
| net_base::IPAddress::CreateFromString("1.2.3.4").value(), |
| net_base::IPAddress::CreateFromString("5.6.7.8").value(), |
| }; |
| |
| Verify_iptables(*runner, IpFamily::kIPv4, "mangle -F qos_detect_doh -w"); |
| for (const auto& proto : {"tcp", "udp"}) { |
| const std::string expected_rule = |
| base::StrCat({"mangle -A qos_detect_doh -p ", proto, |
| " --dport 443 -d 1.2.3.4,5.6.7.8 -j MARK --set-xmark " |
| "0x00000060/0x000000e0 -w"}); |
| Verify_iptables(*runner, IpFamily::kIPv4, expected_rule); |
| } |
| |
| datapath.UpdateDoHProvidersForQoS(IpFamily::kIPv4, ipv4_input); |
| } |
| |
| TEST(DatapathTest, UpdateDoHProvidersForQoSIPv6) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| |
| // Verify IPv6 input. |
| const std::vector<net_base::IPAddress> ipv6_input = { |
| net_base::IPAddress::CreateFromString("fd00::1").value(), |
| net_base::IPAddress::CreateFromString("fd00::2").value(), |
| }; |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, "mangle -F qos_detect_doh -w"); |
| for (const auto& proto : {"tcp", "udp"}) { |
| const std::string expected_rule = |
| base::StrCat({"mangle -A qos_detect_doh -p ", proto, |
| " --dport 443 -d fd00::1,fd00::2 -j MARK --set-xmark " |
| "0x00000060/0x000000e0 -w"}); |
| Verify_iptables(*runner, IpFamily::kIPv6, expected_rule); |
| } |
| |
| datapath.UpdateDoHProvidersForQoS(IpFamily::kIPv6, ipv6_input); |
| } |
| |
| TEST(DatapathTest, UpdateDoHProvidersForQoSEmpty) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| |
| // Empty list should still trigger the flush, but no other rules. |
| Verify_iptables(*runner, IpFamily::kIPv4, "mangle -F qos_detect_doh -w"); |
| datapath.UpdateDoHProvidersForQoS(IpFamily::kIPv4, {}); |
| } |
| |
| TEST(DatapathTest, ModifyClatAcceptRules) { |
| auto runner = new MockProcessRunner(); |
| auto firewall = new MockFirewall(); |
| FakeSystem system; |
| |
| Datapath datapath(runner, firewall, &system); |
| |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A FORWARD -i tun_nat64 -j ACCEPT -w"); |
| Verify_iptables(*runner, IpFamily::kIPv6, |
| "filter -A FORWARD -o tun_nat64 -j ACCEPT -w"); |
| datapath.ModifyClatAcceptRules(Iptables::Command::kA, "tun_nat64"); |
| } |
| |
| } // namespace patchpanel |
