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// 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/sandbox_bpf_base_policy_linux.h"
#include <errno.h>
#include "base/logging.h"
#include "sandbox/linux/bpf_dsl/bpf_dsl.h"
#include "sandbox/linux/seccomp-bpf-helpers/baseline_policy.h"
using sandbox::bpf_dsl::ResultExpr;
namespace content {
namespace {
// The errno used for denied file system access system calls, such as open(2).
static const int kFSDeniedErrno = EPERM;
} // namespace.
SandboxBPFBasePolicy::SandboxBPFBasePolicy()
: baseline_policy_(new sandbox::BaselinePolicy(kFSDeniedErrno)) {}
SandboxBPFBasePolicy::~SandboxBPFBasePolicy() {}
ResultExpr SandboxBPFBasePolicy::EvaluateSyscall(int system_call_number) const {
DCHECK(baseline_policy_);
return baseline_policy_->EvaluateSyscall(system_call_number);
}
ResultExpr SandboxBPFBasePolicy::InvalidSyscall() const {
DCHECK(baseline_policy_);
return baseline_policy_->InvalidSyscall();
}
bool SandboxBPFBasePolicy::PreSandboxHook() {
return true;
}
int SandboxBPFBasePolicy::GetFSDeniedErrno() {
return kFSDeniedErrno;
}
} // namespace content.
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