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/*
* Copyright (C) 2024 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 "host/commands/process_sandboxer/policies.h"
#include <sys/prctl.h>
#include "sandboxed_api/sandbox2/policybuilder.h"
#include "sandboxed_api/sandbox2/util/bpf_helper.h"
#include "sandboxed_api/util/path.h"
using sapi::file::JoinPath;
namespace cuttlefish {
sandbox2::PolicyBuilder LogcatReceiverPolicy(const HostInfo& host) {
auto exe = JoinPath(host.artifacts_path, "bin", "logcat_receiver");
auto lib64 = JoinPath(host.artifacts_path, "lib64");
return sandbox2::PolicyBuilder()
.AddDirectory(lib64)
.AddDirectory(host.log_dir, /* is_ro= */ false)
.AddFile(host.cuttlefish_config_path)
.AddLibrariesForBinary(exe, lib64)
// For dynamic linking
.AddPolicyOnSyscall(__NR_prctl,
{ARG_32(0), JEQ32(PR_CAPBSET_READ, ALLOW)})
.AllowDynamicStartup()
.AllowExit()
.AllowGetPIDs()
.AllowGetRandom()
.AllowHandleSignals()
.AllowMmap()
.AllowOpen()
.AllowRead()
.AllowReadlink()
.AllowRestartableSequences(sandbox2::PolicyBuilder::kAllowSlowFences)
.AllowSafeFcntl()
.AllowSyscall(__NR_tgkill)
.AllowWrite();
}
} // namespace cuttlefish
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