| // 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 "content/common/sandbox_linux/bpf_ppapi_policy_linux.h" |
| |
| #include <errno.h> |
| |
| #include "base/basictypes.h" |
| #include "build/build_config.h" |
| #include "content/common/sandbox_linux/sandbox_linux.h" |
| #include "sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h" |
| #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h" |
| #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h" |
| #include "sandbox/linux/services/linux_syscalls.h" |
| |
| using sandbox::SyscallSets; |
| |
| namespace content { |
| |
| PpapiProcessPolicy::PpapiProcessPolicy() {} |
| PpapiProcessPolicy::~PpapiProcessPolicy() {} |
| |
| ErrorCode PpapiProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox, |
| int sysno) const { |
| switch (sysno) { |
| // TODO(jln): restrict prctl. |
| case __NR_prctl: |
| case __NR_pread64: |
| case __NR_pwrite64: |
| case __NR_sched_get_priority_max: |
| case __NR_sched_get_priority_min: |
| case __NR_sched_getaffinity: |
| case __NR_sched_getparam: |
| case __NR_sched_getscheduler: |
| case __NR_sched_setscheduler: |
| case __NR_times: |
| return ErrorCode(ErrorCode::ERR_ALLOWED); |
| case __NR_ioctl: |
| return ErrorCode(ENOTTY); // Flash Access. |
| default: |
| // Default on the baseline policy. |
| return SandboxBPFBasePolicy::EvaluateSyscall(sandbox, sysno); |
| } |
| } |
| |
| } // namespace content |