73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SANDBOX_H_
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#define SANDBOX_H_
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#include <linux/futex.h>
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#include <sys/mman.h> // For mmap arguments
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#include <syscall.h>
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#include <cstdlib>
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#include "curl_sapi.sapi.h" // NOLINT(build/include)
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#include "sandboxed_api/sandbox2/util/bpf_helper.h"
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namespace curl {
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class CurlSapiSandbox : public curl::CurlSandbox {
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protected:
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std::unique_ptr<sandbox2::Policy> ModifyPolicy(
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sandbox2::PolicyBuilder*) override {
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// Return a new policy
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return sandbox2::PolicyBuilder()
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.AllowDynamicStartup()
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.AllowExit()
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.AllowFork()
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.AllowFutexOp(FUTEX_WAIT_PRIVATE)
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.AllowFutexOp(FUTEX_WAKE_PRIVATE)
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.AllowFutexOp(FUTEX_REQUEUE_PRIVATE)
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.AllowMmapWithoutExec()
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.AllowOpen()
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.AllowSafeFcntl()
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.AllowWrite()
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.AllowAccess()
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.AllowSyscall(__NR_accept)
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.AllowSyscall(__NR_bind)
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.AllowSyscall(__NR_connect)
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.AllowSyscall(__NR_getpeername)
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.AllowSyscall(__NR_getsockname)
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.AllowSyscall(__NR_getsockopt)
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.AllowSyscall(__NR_ioctl)
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.AllowSyscall(__NR_listen)
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.AllowSyscall(__NR_madvise)
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.AllowPoll()
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.AllowSyscall(__NR_recvfrom)
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.AllowSyscall(__NR_recvmsg)
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.AllowSyscall(__NR_rt_sigaction)
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.AllowSyscall(__NR_sendmmsg)
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.AllowSyscall(__NR_sendto)
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.AllowSyscall(__NR_setsockopt)
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.AllowSyscall(__NR_socket)
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.AllowSyscall(__NR_sysinfo)
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.AddDirectory("/lib")
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.AllowUnrestrictedNetworking()
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.BuildOrDie();
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}
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};
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} // namespace curl
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#endif // SANDBOX_H_
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