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// 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.
#include <base/logging.h>
#include <firewalld/firewall.h>
#include <unistd.h>
#include "android/firewalld/IFirewall.h"
#define FIREWALL_BINDER_CLIENT_EXPORT __attribute__((__visibility__("default")))
using std::unique_ptr;
using std::vector;
using std::string;
using android::firewalld::IFirewall;
using android::IBinder;
using android::sp;
namespace firewalld {
const char kServiceName[] = "android.firewalld.Firewall";
class FirewallImpl : public Firewall {
public:
explicit FirewallImpl(sp<IBinder> server_firewall)
: server_firewall_(android::interface_cast<IFirewall>(server_firewall)) {}
virtual ~FirewallImpl() = default;
bool PunchTcpHole(int16_t port, const string& iface) override {
return server_firewall_->PunchTcpHole(port, iface).isOk();
}
bool PunchUdpHole(int16_t port, const string& iface) override {
return server_firewall_->PunchUdpHole(port, iface).isOk();
}
bool PlugTcpHole(int16_t port, const string& iface) override {
return server_firewall_->PlugTcpHole(port, iface).isOk();
}
bool PlugUdpHole(int16_t port, const string& iface) override {
return server_firewall_->PlugUdpHole(port, iface).isOk();
}
bool RequestVpnSetup(const vector<string>& usernames,
const string& iface) override {
return server_firewall_->RequestVpnSetup(usernames, iface).isOk();
}
bool RemoveVpnSetup(const vector<string>& usernames,
const string& iface) override {
return server_firewall_->RemoveVpnSetup(usernames, iface).isOk();
}
private:
sp<IFirewall> server_firewall_;
DISALLOW_COPY_AND_ASSIGN(FirewallImpl);
};
FIREWALL_BINDER_CLIENT_EXPORT
unique_ptr<Firewall> Firewall::Connect(
android::BinderWrapper* binder_wrapper) {
sp<IBinder> binder(nullptr);
int retries = 15;
while (retries--) {
binder = binder_wrapper->GetService(kServiceName);
if (binder.get()) {
break;
}
sleep(1);
}
if (!binder.get()) {
LOG(WARNING) << "Could not connect to " << kServiceName << " service.";
return unique_ptr<Firewall>();
}
return unique_ptr<Firewall>(new FirewallImpl(binder));
}
} // namespace firewalld
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