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//
// Copyright (C) 2014 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.
//
#include "apmanager/dhcp_server.h"
#include <string>
#include <net/if.h>
#include <base/strings/string_util.h>
#include <base/strings/stringprintf.h>
#include <brillo/process_mock.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <shill/net/mock_rtnl_handler.h>
#include "apmanager/mock_file_writer.h"
#include "apmanager/mock_process_factory.h"
using brillo::ProcessMock;
using ::testing::_;
using ::testing::Mock;
using ::testing::Return;
using std::string;
namespace {
const uint16_t kServerAddressIndex = 1;
const char kTestInterfaceName[] = "test_interface";
const char kExpectedDnsmasqConfigFile[] =
"port=0\n"
"bind-interfaces\n"
"log-dhcp\n"
"keep-in-foreground\n"
"dhcp-range=192.168.1.1,192.168.1.128\n"
"interface=test_interface\n"
#if !defined(__ANDROID__)
"user=apmanager\n"
"dhcp-leasefile=/var/run/apmanager/dnsmasq/dhcpd-1.leases\n";
#else
"user=system\n"
"dhcp-leasefile=/data/misc/apmanager/dnsmasq/dhcpd-1.leases\n";
#endif // __ANDROID__
#if !defined(__ANDROID__)
const char kBinSleep[] = "/bin/sleep";
const char kDnsmasqConfigFilePath[] =
"/var/run/apmanager/dnsmasq/dhcpd-1.conf";
#else
const char kBinSleep[] = "/system/bin/sleep";
const char kDnsmasqConfigFilePath[] =
"/data/misc/apmanager/dnsmasq/dhcpd-1.conf";
#endif // __ANDROID__
} // namespace
namespace apmanager {
class DHCPServerTest : public testing::Test {
public:
DHCPServerTest()
: dhcp_server_(new DHCPServer(kServerAddressIndex, kTestInterfaceName)),
rtnl_handler_(new shill::MockRTNLHandler()) {}
virtual ~DHCPServerTest() {}
virtual void SetUp() {
dhcp_server_->rtnl_handler_ = rtnl_handler_.get();
dhcp_server_->file_writer_ = &file_writer_;
dhcp_server_->process_factory_ = &process_factory_;
}
virtual void TearDown() {
// Reset DHCP server now while RTNLHandler is still valid.
dhcp_server_.reset();
}
void StartDummyProcess() {
dhcp_server_->dnsmasq_process_.reset(new brillo::ProcessImpl);
dhcp_server_->dnsmasq_process_->AddArg(kBinSleep);
dhcp_server_->dnsmasq_process_->AddArg("12345");
CHECK(dhcp_server_->dnsmasq_process_->Start());
}
string GenerateConfigFile() {
return dhcp_server_->GenerateConfigFile();
}
protected:
std::unique_ptr<DHCPServer> dhcp_server_;
std::unique_ptr<shill::MockRTNLHandler> rtnl_handler_;
MockFileWriter file_writer_;
MockProcessFactory process_factory_;
};
TEST_F(DHCPServerTest, GenerateConfigFile) {
string config_content = GenerateConfigFile();
EXPECT_STREQ(kExpectedDnsmasqConfigFile, config_content.c_str())
<< "Expected to find the following config...\n"
<< kExpectedDnsmasqConfigFile << ".....\n"
<< config_content;
}
TEST_F(DHCPServerTest, StartWhenServerAlreadyStarted) {
StartDummyProcess();
EXPECT_FALSE(dhcp_server_->Start());
}
TEST_F(DHCPServerTest, StartSuccess) {
ProcessMock* process = new ProcessMock();
const int kInterfaceIndex = 1;
EXPECT_CALL(file_writer_,
Write(kDnsmasqConfigFilePath, kExpectedDnsmasqConfigFile))
.WillOnce(Return(true));
EXPECT_CALL(*rtnl_handler_.get(), GetInterfaceIndex(kTestInterfaceName))
.WillOnce(Return(kInterfaceIndex));
EXPECT_CALL(*rtnl_handler_.get(),
AddInterfaceAddress(kInterfaceIndex, _, _, _)).Times(1);
EXPECT_CALL(*rtnl_handler_.get(),
SetInterfaceFlags(kInterfaceIndex, IFF_UP, IFF_UP)).Times(1);
EXPECT_CALL(process_factory_, CreateProcess()).WillOnce(Return(process));
EXPECT_CALL(*process, Start()).WillOnce(Return(true));
EXPECT_TRUE(dhcp_server_->Start());
Mock::VerifyAndClearExpectations(rtnl_handler_.get());
}
} // namespace apmanager
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