blob: ec5739cbdc1646448a96b4eaf7c604de42f82164 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// 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
|
