94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sandboxed_api/sandbox2/syscall.h"
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#include <linux/audit.h>
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#include <cstdint>
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#include <string>
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#include <vector>
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#include "absl/strings/str_format.h"
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#include "absl/strings/str_join.h"
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#include "absl/strings/string_view.h"
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#include "sandboxed_api/config.h"
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#include "sandboxed_api/sandbox2/syscall_defs.h"
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#ifndef AUDIT_ARCH_PPC64LE
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#define AUDIT_ARCH_PPC64LE (EM_PPC64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE)
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#endif
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namespace sandbox2 {
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std::string Syscall::GetArchDescription(sapi::cpu::Architecture arch) {
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switch (arch) {
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case sapi::cpu::kX8664:
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return "[X86-64]";
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case sapi::cpu::kX86:
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return "[X86-32]";
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case sapi::cpu::kPPC64LE:
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return "[PPC-64]";
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case sapi::cpu::kArm64:
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return "[Arm-64]";
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case sapi::cpu::kArm:
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return "[Arm-32]";
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default:
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return absl::StrFormat("[UNKNOWN_ARCH:%d]", arch);
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}
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}
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uint32_t Syscall::GetHostAuditArch() {
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switch (sapi::host_cpu::Architecture()) {
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case sapi::cpu::kX8664:
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return AUDIT_ARCH_X86_64;
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case sapi::cpu::kPPC64LE:
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return AUDIT_ARCH_PPC64LE;
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case sapi::cpu::kArm64:
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return AUDIT_ARCH_AARCH64;
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case sapi::cpu::kArm:
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return AUDIT_ARCH_ARM;
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default:
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// The static_assert() in config.h should prevent us from ever getting
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// here.
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return 0; // Not reached
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}
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}
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std::string Syscall::GetName() const {
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if (absl::string_view name = SyscallTable::get(arch_).GetName(nr_);
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!name.empty()) {
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return std::string(name);
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}
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return absl::StrFormat("UNKNOWN[%d/0x%x]", nr_, nr_);
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}
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std::vector<syscalls::ArgData> Syscall::GetArgumentsData() const {
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return SyscallTable::get(arch_).GetArgumentsData(nr_, args_.data(), pid_);
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}
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std::vector<std::string> Syscall::GetArgumentsDescription() const {
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return SyscallTable::get(arch_).GetArgumentsDescription(nr_, args_.data(),
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pid_);
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}
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std::string Syscall::GetDescription() const {
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const std::string arch = GetArchDescription(arch_);
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const std::string args = absl::StrJoin(GetArgumentsDescription(), ", ");
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return absl::StrFormat("%s %s [%d](%s) IP: %#x, STACK: %#x", arch, GetName(),
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nr_, args, ip_, sp_);
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}
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} // namespace sandbox2
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