| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "sandbox/policy/linux/bpf_ppapi_policy_linux.h" |
| |
| #include <errno.h> |
| |
| #include "build/build_config.h" |
| #include "sandbox/linux/bpf_dsl/bpf_dsl.h" |
| #include "sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h" |
| #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h" |
| #include "sandbox/linux/system_headers/linux_syscalls.h" |
| #include "sandbox/policy/linux/sandbox_linux.h" |
| |
| using sandbox::bpf_dsl::Allow; |
| using sandbox::bpf_dsl::Error; |
| using sandbox::bpf_dsl::ResultExpr; |
| |
| namespace sandbox { |
| namespace policy { |
| |
| PpapiProcessPolicy::PpapiProcessPolicy() {} |
| PpapiProcessPolicy::~PpapiProcessPolicy() {} |
| |
| ResultExpr PpapiProcessPolicy::EvaluateSyscall(int sysno) const { |
| switch (sysno) { |
| // TODO(jln): restrict prctl. |
| case __NR_prctl: |
| case __NR_pwrite64: |
| case __NR_sched_get_priority_max: |
| case __NR_sched_get_priority_min: |
| case __NR_sysinfo: |
| case __NR_times: |
| return Allow(); |
| case __NR_sched_getaffinity: |
| case __NR_sched_getparam: |
| case __NR_sched_getscheduler: |
| case __NR_sched_setscheduler: |
| return RestrictSchedTarget(GetPolicyPid(), sysno); |
| case __NR_ioctl: |
| return Error(ENOTTY); // Flash Access. |
| default: |
| // Default on the baseline policy. |
| return BPFBasePolicy::EvaluateSyscall(sysno); |
| } |
| } |
| |
| } // namespace policy |
| } // namespace sandbox |