clang  9.0.0svn
TaintManager.h
Go to the documentation of this file.
1 //===- TaintManager.h - Managing taint --------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file provides APIs for adding, removing, querying symbol taint.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_TAINTMANAGER_H
14 #define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_TAINTMANAGER_H
15 
20 #include "llvm/ADT/ImmutableMap.h"
21 
22 namespace clang {
23 namespace ento {
24 
25 /// The GDM component containing the tainted root symbols. We lazily infer the
26 /// taint of the dependent symbols. Currently, this is a map from a symbol to
27 /// tag kind. TODO: Should support multiple tag kinds.
28 // FIXME: This does not use the nice trait macros because it must be accessible
29 // from multiple translation units.
30 struct TaintMap {};
31 
32 using TaintMapImpl = llvm::ImmutableMap<SymbolRef, TaintTagType>;
33 
34 template<> struct ProgramStateTrait<TaintMap>
35  : public ProgramStatePartialTrait<TaintMapImpl> {
36  static void *GDMIndex();
37 };
38 
39 /// The GDM component mapping derived symbols' parent symbols to their
40 /// underlying regions. This is used to efficiently check whether a symbol is
41 /// tainted when it represents a sub-region of a tainted symbol.
42 struct DerivedSymTaint {};
43 
44 using DerivedSymTaintImpl = llvm::ImmutableMap<SymbolRef, TaintedSubRegions>;
45 
47  : public ProgramStatePartialTrait<DerivedSymTaintImpl> {
48  static void *GDMIndex();
49 };
50 
51 class TaintManager {
52  TaintManager() = default;
53 };
54 
55 } // namespace ento
56 } // namespace clang
57 
58 #endif // LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_TAINTMANAGER_H
llvm::ImmutableMap< SymbolRef, TaintTagType > TaintMapImpl
Definition: TaintManager.h:32
llvm::ImmutableMap< SymbolRef, TaintedSubRegions > DerivedSymTaintImpl
Definition: TaintManager.h:44
The GDM component mapping derived symbols&#39; parent symbols to their underlying regions.
Definition: TaintManager.h:42
Dataflow Directional Tag Classes.
The GDM component containing the tainted root symbols.
Definition: TaintManager.h:30