294 lines
10 KiB
C++
294 lines
10 KiB
C++
/*
|
|
* Copyright 2016 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* BandwidthControllerTest.cpp - unit tests for BandwidthController.cpp
|
|
*/
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#include <android-base/strings.h>
|
|
|
|
#include "BandwidthController.h"
|
|
#include "IptablesBaseTest.h"
|
|
|
|
class BandwidthControllerTest : public IptablesBaseTest {
|
|
public:
|
|
BandwidthControllerTest() {
|
|
BandwidthController::execFunction = fake_android_fork_exec;
|
|
BandwidthController::popenFunction = fake_popen;
|
|
BandwidthController::iptablesRestoreFunction = fakeExecIptablesRestore;
|
|
}
|
|
BandwidthController mBw;
|
|
|
|
void addPopenContents(std::string contents) {
|
|
sPopenContents.push_back(contents);
|
|
}
|
|
|
|
void addPopenContents(std::string contents1, std::string contents2) {
|
|
sPopenContents.push_back(contents1);
|
|
sPopenContents.push_back(contents2);
|
|
}
|
|
|
|
void clearPopenContents() {
|
|
sPopenContents.clear();
|
|
}
|
|
};
|
|
|
|
TEST_F(BandwidthControllerTest, TestSetupIptablesHooks) {
|
|
mBw.setupIptablesHooks();
|
|
std::vector<std::string> expected = {
|
|
"*filter\n"
|
|
":bw_INPUT -\n"
|
|
":bw_OUTPUT -\n"
|
|
":bw_FORWARD -\n"
|
|
":bw_happy_box -\n"
|
|
":bw_penalty_box -\n"
|
|
":bw_data_saver -\n"
|
|
":bw_costly_shared -\n"
|
|
"COMMIT\n"
|
|
"*raw\n"
|
|
":bw_raw_PREROUTING -\n"
|
|
"COMMIT\n"
|
|
"*mangle\n"
|
|
":bw_mangle_POSTROUTING -\n"
|
|
"COMMIT\n\x04"
|
|
};
|
|
expectIptablesRestoreCommands(expected);
|
|
}
|
|
|
|
TEST_F(BandwidthControllerTest, TestEnableBandwidthControl) {
|
|
mBw.enableBandwidthControl(false);
|
|
std::string expectedFlush =
|
|
"*filter\n"
|
|
":bw_INPUT -\n"
|
|
":bw_OUTPUT -\n"
|
|
":bw_FORWARD -\n"
|
|
":bw_happy_box -\n"
|
|
":bw_penalty_box -\n"
|
|
":bw_data_saver -\n"
|
|
":bw_costly_shared -\n"
|
|
"COMMIT\n"
|
|
"*raw\n"
|
|
":bw_raw_PREROUTING -\n"
|
|
"COMMIT\n"
|
|
"*mangle\n"
|
|
":bw_mangle_POSTROUTING -\n"
|
|
"COMMIT\n\x04";
|
|
std::string expectedAccounting =
|
|
"*filter\n"
|
|
"-A bw_INPUT -m owner --socket-exists\n"
|
|
"-A bw_OUTPUT -m owner --socket-exists\n"
|
|
"-A bw_costly_shared --jump bw_penalty_box\n"
|
|
"-A bw_penalty_box --jump bw_happy_box\n"
|
|
"-A bw_happy_box --jump bw_data_saver\n"
|
|
"-A bw_data_saver -j RETURN\n"
|
|
"-I bw_happy_box -m owner --uid-owner 0-9999 --jump RETURN\n"
|
|
"COMMIT\n"
|
|
"*raw\n"
|
|
"-A bw_raw_PREROUTING -m owner --socket-exists\n"
|
|
"COMMIT\n"
|
|
"*mangle\n"
|
|
"-A bw_mangle_POSTROUTING -m owner --socket-exists\n"
|
|
"COMMIT\n\x04";
|
|
|
|
expectIptablesRestoreCommands({ expectedFlush, expectedAccounting });
|
|
}
|
|
|
|
TEST_F(BandwidthControllerTest, TestDisableBandwidthControl) {
|
|
mBw.disableBandwidthControl();
|
|
const std::string expected =
|
|
"*filter\n"
|
|
":bw_INPUT -\n"
|
|
":bw_OUTPUT -\n"
|
|
":bw_FORWARD -\n"
|
|
":bw_happy_box -\n"
|
|
":bw_penalty_box -\n"
|
|
":bw_data_saver -\n"
|
|
":bw_costly_shared -\n"
|
|
"COMMIT\n"
|
|
"*raw\n"
|
|
":bw_raw_PREROUTING -\n"
|
|
"COMMIT\n"
|
|
"*mangle\n"
|
|
":bw_mangle_POSTROUTING -\n"
|
|
"COMMIT\n\x04";
|
|
expectIptablesRestoreCommands({ expected });
|
|
}
|
|
|
|
TEST_F(BandwidthControllerTest, TestEnableDataSaver) {
|
|
mBw.enableDataSaver(true);
|
|
std::vector<std::string> expected = {
|
|
"-R bw_data_saver 1 --jump REJECT",
|
|
};
|
|
expectIptablesCommands(expected);
|
|
|
|
mBw.enableDataSaver(false);
|
|
expected = {
|
|
"-R bw_data_saver 1 --jump RETURN",
|
|
};
|
|
expectIptablesCommands(expected);
|
|
}
|
|
|
|
std::string kIPv4TetherCounters = android::base::Join(std::vector<std::string> {
|
|
"Chain natctrl_tether_counters (4 references)",
|
|
" pkts bytes target prot opt in out source destination",
|
|
" 26 2373 RETURN all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0",
|
|
" 27 2002 RETURN all -- rmnet0 wlan0 0.0.0.0/0 0.0.0.0/0",
|
|
" 1040 107471 RETURN all -- bt-pan rmnet0 0.0.0.0/0 0.0.0.0/0",
|
|
" 1450 1708806 RETURN all -- rmnet0 bt-pan 0.0.0.0/0 0.0.0.0/0",
|
|
}, '\n');
|
|
|
|
std::string kIPv6TetherCounters = android::base::Join(std::vector<std::string> {
|
|
"Chain natctrl_tether_counters (2 references)",
|
|
" pkts bytes target prot opt in out source destination",
|
|
" 10000 10000000 RETURN all wlan0 rmnet0 ::/0 ::/0",
|
|
" 20000 20000000 RETURN all rmnet0 wlan0 ::/0 ::/0",
|
|
}, '\n');
|
|
|
|
std::string readSocketClientResponse(int fd) {
|
|
char buf[32768];
|
|
ssize_t bytesRead = read(fd, buf, sizeof(buf));
|
|
if (bytesRead < 0) {
|
|
return "";
|
|
}
|
|
for (int i = 0; i < bytesRead; i++) {
|
|
if (buf[i] == '\0') buf[i] = '\n';
|
|
}
|
|
return std::string(buf, bytesRead);
|
|
}
|
|
|
|
void expectNoSocketClientResponse(int fd) {
|
|
char buf[64];
|
|
EXPECT_EQ(-1, read(fd, buf, sizeof(buf)));
|
|
}
|
|
|
|
TEST_F(BandwidthControllerTest, TestGetTetherStats) {
|
|
int socketPair[2];
|
|
ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, socketPair));
|
|
ASSERT_EQ(0, fcntl(socketPair[0], F_SETFL, O_NONBLOCK | fcntl(socketPair[0], F_GETFL)));
|
|
ASSERT_EQ(0, fcntl(socketPair[1], F_SETFL, O_NONBLOCK | fcntl(socketPair[1], F_GETFL)));
|
|
SocketClient cli(socketPair[0], false);
|
|
|
|
std::string err;
|
|
BandwidthController::TetherStats filter;
|
|
|
|
// If no filter is specified, both IPv4 and IPv6 counters must have at least one interface pair.
|
|
addPopenContents(kIPv4TetherCounters, "");
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
|
|
addPopenContents("", kIPv6TetherCounters);
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
clearPopenContents();
|
|
|
|
// IPv4 and IPv6 counters are properly added together.
|
|
addPopenContents(kIPv4TetherCounters, kIPv6TetherCounters);
|
|
filter = BandwidthController::TetherStats();
|
|
std::string expected =
|
|
"114 wlan0 rmnet0 10002373 10026 20002002 20027\n"
|
|
"114 bt-pan rmnet0 107471 1040 1708806 1450\n"
|
|
"200 Tethering stats list completed\n";
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ(expected, readSocketClientResponse(socketPair[1]));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
|
|
// Test filtering.
|
|
addPopenContents(kIPv4TetherCounters, kIPv6TetherCounters);
|
|
filter = BandwidthController::TetherStats("bt-pan", "rmnet0", -1, -1, -1, -1);
|
|
expected = "221 bt-pan rmnet0 107471 1040 1708806 1450\n";
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ(expected, readSocketClientResponse(socketPair[1]));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
|
|
addPopenContents(kIPv4TetherCounters, kIPv6TetherCounters);
|
|
filter = BandwidthController::TetherStats("wlan0", "rmnet0", -1, -1, -1, -1);
|
|
expected = "221 wlan0 rmnet0 10002373 10026 20002002 20027\n";
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ(expected, readSocketClientResponse(socketPair[1]));
|
|
clearPopenContents();
|
|
|
|
// Select nonexistent interfaces.
|
|
addPopenContents(kIPv4TetherCounters, kIPv6TetherCounters);
|
|
filter = BandwidthController::TetherStats("rmnet0", "foo0", -1, -1, -1, -1);
|
|
expected = "200 Tethering stats list completed\n";
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ(expected, readSocketClientResponse(socketPair[1]));
|
|
clearPopenContents();
|
|
|
|
// No stats with a filter: no error.
|
|
addPopenContents("", "");
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ("200 Tethering stats list completed\n", readSocketClientResponse(socketPair[1]));
|
|
clearPopenContents();
|
|
|
|
addPopenContents("foo", "foo");
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ("200 Tethering stats list completed\n", readSocketClientResponse(socketPair[1]));
|
|
clearPopenContents();
|
|
|
|
// No stats and empty filter: error.
|
|
filter = BandwidthController::TetherStats();
|
|
addPopenContents("", kIPv6TetherCounters);
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
|
|
addPopenContents(kIPv4TetherCounters, "");
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
|
|
// Include only one pair of interfaces and things are fine.
|
|
std::vector<std::string> counterLines = android::base::Split(kIPv4TetherCounters, "\n");
|
|
std::vector<std::string> brokenCounterLines = counterLines;
|
|
counterLines.resize(4);
|
|
std::string counters = android::base::Join(counterLines, "\n") + "\n";
|
|
addPopenContents(counters, counters);
|
|
expected =
|
|
"114 wlan0 rmnet0 4746 52 4004 54\n"
|
|
"200 Tethering stats list completed\n";
|
|
ASSERT_EQ(0, mBw.getTetherStats(&cli, filter, err));
|
|
ASSERT_EQ(expected, readSocketClientResponse(socketPair[1]));
|
|
clearPopenContents();
|
|
|
|
// But if interfaces aren't paired, it's always an error.
|
|
counterLines.resize(3);
|
|
counters = android::base::Join(counterLines, "\n") + "\n";
|
|
addPopenContents(counters, counters);
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
|
|
// popen() failing is always an error.
|
|
addPopenContents(kIPv4TetherCounters);
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
addPopenContents(kIPv6TetherCounters);
|
|
ASSERT_EQ(-1, mBw.getTetherStats(&cli, filter, err));
|
|
expectNoSocketClientResponse(socketPair[1]);
|
|
clearPopenContents();
|
|
}
|