1 //===- TaintManager.h - Managing taint --------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file provides APIs for adding, removing, querying symbol taint.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_TAINTMANAGER_H
15 #define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_TAINTMANAGER_H
17 #include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
18 #include "clang/StaticAnalyzer/Core/PathSensitive/ProgramStateTrait.h"
19 #include "clang/StaticAnalyzer/Core/PathSensitive/SymExpr.h"
20 #include "clang/StaticAnalyzer/Core/PathSensitive/TaintTag.h"
21 #include "llvm/ADT/ImmutableMap.h"
26 /// The GDM component containing the tainted root symbols. We lazily infer the
27 /// taint of the dependent symbols. Currently, this is a map from a symbol to
28 /// tag kind. TODO: Should support multiple tag kinds.
29 // FIXME: This does not use the nice trait macros because it must be accessible
30 // from multiple translation units.
33 using TaintMapImpl = llvm::ImmutableMap<SymbolRef, TaintTagType>;
35 template<> struct ProgramStateTrait<TaintMap>
36 : public ProgramStatePartialTrait<TaintMapImpl> {
37 static void *GDMIndex() {
43 /// The GDM component mapping derived symbols' parent symbols to their
44 /// underlying regions. This is used to efficiently check whether a symbol is
45 /// tainted when it represents a sub-region of a tainted symbol.
46 struct DerivedSymTaint {};
48 using DerivedSymTaintImpl = llvm::ImmutableMap<SymbolRef, TaintedSubRegions>;
50 template<> struct ProgramStateTrait<DerivedSymTaint>
51 : public ProgramStatePartialTrait<DerivedSymTaintImpl> {
52 static void *GDMIndex() {
59 TaintManager() = default;
65 #endif // LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_TAINTMANAGER_H