1 /*
2 * Copyright (C) 2024 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "host/commands/process_sandboxer/policies.h"
18
19 #include <sys/socket.h>
20 #include <sys/syscall.h>
21
22 #include <sandboxed_api/sandbox2/allowlists/unrestricted_networking.h>
23 #include <sandboxed_api/sandbox2/policybuilder.h>
24 #include <sandboxed_api/sandbox2/util/bpf_helper.h>
25
26 namespace cuttlefish::process_sandboxer {
27
TcpConnectorPolicy(const HostInfo & host)28 sandbox2::PolicyBuilder TcpConnectorPolicy(const HostInfo& host) {
29 return BaselinePolicy(host, host.HostToolExe("tcp_connector"))
30 .AddDirectory(host.EnvironmentsUdsDir(), /* is_ro= */ false)
31 .AddDirectory(host.log_dir, /* is_ro= */ false)
32 .AddFile(host.cuttlefish_config_path)
33 .AddPolicyOnSyscall(__NR_socket, {ARG_32(0), JEQ32(AF_INET, ALLOW),
34 JEQ32(AF_UNIX, ALLOW)})
35 .Allow(sandbox2::UnrestrictedNetworking())
36 .AllowSafeFcntl()
37 .AllowSleep()
38 .AllowSyscall(__NR_clone) // Multithreading
39 .AllowSyscall(__NR_connect)
40 .AllowTCGETS();
41 }
42
43 } // namespace cuttlefish::process_sandboxer
44