1*ec63e07aSXin Li // Copyright 2020 Google LLC 2*ec63e07aSXin Li // 3*ec63e07aSXin Li // Licensed under the Apache License, Version 2.0 (the "License"); 4*ec63e07aSXin Li // you may not use this file except in compliance with the License. 5*ec63e07aSXin Li // You may obtain a copy of the License at 6*ec63e07aSXin Li // 7*ec63e07aSXin Li // https://www.apache.org/licenses/LICENSE-2.0 8*ec63e07aSXin Li // 9*ec63e07aSXin Li // Unless required by applicable law or agreed to in writing, software 10*ec63e07aSXin Li // distributed under the License is distributed on an "AS IS" BASIS, 11*ec63e07aSXin Li // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*ec63e07aSXin Li // See the License for the specific language governing permissions and 13*ec63e07aSXin Li // limitations under the License. 14*ec63e07aSXin Li 15*ec63e07aSXin Li #ifndef SANDBOX_H_ 16*ec63e07aSXin Li #define SANDBOX_H_ 17*ec63e07aSXin Li 18*ec63e07aSXin Li #include <linux/futex.h> 19*ec63e07aSXin Li #include <sys/mman.h> // For mmap arguments 20*ec63e07aSXin Li #include <syscall.h> 21*ec63e07aSXin Li 22*ec63e07aSXin Li #include <cstdlib> 23*ec63e07aSXin Li 24*ec63e07aSXin Li #include "curl_sapi.sapi.h" // NOLINT(build/include) 25*ec63e07aSXin Li #include "sandboxed_api/sandbox2/util/bpf_helper.h" 26*ec63e07aSXin Li 27*ec63e07aSXin Li namespace curl { 28*ec63e07aSXin Li 29*ec63e07aSXin Li class CurlSapiSandbox : public curl::CurlSandbox { 30*ec63e07aSXin Li protected: ModifyPolicy(sandbox2::PolicyBuilder *)31*ec63e07aSXin Li std::unique_ptr<sandbox2::Policy> ModifyPolicy( 32*ec63e07aSXin Li sandbox2::PolicyBuilder*) override { 33*ec63e07aSXin Li // Return a new policy 34*ec63e07aSXin Li return sandbox2::PolicyBuilder() 35*ec63e07aSXin Li .AllowDynamicStartup() 36*ec63e07aSXin Li .AllowExit() 37*ec63e07aSXin Li .AllowFork() 38*ec63e07aSXin Li .AllowFutexOp(FUTEX_WAIT_PRIVATE) 39*ec63e07aSXin Li .AllowFutexOp(FUTEX_WAKE_PRIVATE) 40*ec63e07aSXin Li .AllowFutexOp(FUTEX_REQUEUE_PRIVATE) 41*ec63e07aSXin Li .AllowMmapWithoutExec() 42*ec63e07aSXin Li .AllowOpen() 43*ec63e07aSXin Li .AllowSafeFcntl() 44*ec63e07aSXin Li .AllowWrite() 45*ec63e07aSXin Li .AllowAccess() 46*ec63e07aSXin Li .AllowSyscall(__NR_accept) 47*ec63e07aSXin Li .AllowSyscall(__NR_bind) 48*ec63e07aSXin Li .AllowSyscall(__NR_connect) 49*ec63e07aSXin Li .AllowSyscall(__NR_getpeername) 50*ec63e07aSXin Li .AllowSyscall(__NR_getsockname) 51*ec63e07aSXin Li .AllowSyscall(__NR_getsockopt) 52*ec63e07aSXin Li .AllowSyscall(__NR_ioctl) 53*ec63e07aSXin Li .AllowSyscall(__NR_listen) 54*ec63e07aSXin Li .AllowSyscall(__NR_madvise) 55*ec63e07aSXin Li .AllowPoll() 56*ec63e07aSXin Li .AllowSyscall(__NR_recvfrom) 57*ec63e07aSXin Li .AllowSyscall(__NR_recvmsg) 58*ec63e07aSXin Li .AllowSyscall(__NR_rt_sigaction) 59*ec63e07aSXin Li .AllowSyscall(__NR_sendmmsg) 60*ec63e07aSXin Li .AllowSyscall(__NR_sendto) 61*ec63e07aSXin Li .AllowSyscall(__NR_setsockopt) 62*ec63e07aSXin Li .AllowSyscall(__NR_socket) 63*ec63e07aSXin Li .AllowSyscall(__NR_sysinfo) 64*ec63e07aSXin Li .AddDirectory("/lib") 65*ec63e07aSXin Li .AllowUnrestrictedNetworking() 66*ec63e07aSXin Li .BuildOrDie(); 67*ec63e07aSXin Li } 68*ec63e07aSXin Li }; 69*ec63e07aSXin Li 70*ec63e07aSXin Li } // namespace curl 71*ec63e07aSXin Li 72*ec63e07aSXin Li #endif // SANDBOX_H_ 73