clang::ento::taint Namespace Reference

Classes
class	TaintBugVisitor
	The bug visitor prints a diagnostic message at the location where a given variable was tainted. More...

Typedefs
using	TaintTagType = unsigned
	The type of taint, which helps to differentiate between different types of taint. More...

Functions
LLVM_NODISCARD ProgramStateRef	addTaint (ProgramStateRef State, const Stmt *S, const LocationContext *LCtx, TaintTagType Kind=TaintTagGeneric)
	Create a new state in which the value of the statement is marked as tainted. More...
LLVM_NODISCARD ProgramStateRef	addTaint (ProgramStateRef State, SVal V, TaintTagType Kind=TaintTagGeneric)
	Create a new state in which the value is marked as tainted. More...
LLVM_NODISCARD ProgramStateRef	addTaint (ProgramStateRef State, SymbolRef Sym, TaintTagType Kind=TaintTagGeneric)
	Create a new state in which the symbol is marked as tainted. More...
LLVM_NODISCARD ProgramStateRef	addTaint (ProgramStateRef State, const MemRegion *R, TaintTagType Kind=TaintTagGeneric)
	Create a new state in which the pointer represented by the region is marked as tainted. More...
LLVM_NODISCARD ProgramStateRef	removeTaint (ProgramStateRef State, SVal V)
LLVM_NODISCARD ProgramStateRef	removeTaint (ProgramStateRef State, const MemRegion *R)
LLVM_NODISCARD ProgramStateRef	removeTaint (ProgramStateRef State, SymbolRef Sym)
LLVM_NODISCARD ProgramStateRef	addPartialTaint (ProgramStateRef State, SymbolRef ParentSym, const SubRegion *SubRegion, TaintTagType Kind=TaintTagGeneric)
	Create a new state in a which a sub-region of a given symbol is tainted. More...
bool	isTainted (ProgramStateRef State, const Stmt *S, const LocationContext *LCtx, TaintTagType Kind=TaintTagGeneric)
	Check if the statement has a tainted value in the given state. More...
bool	isTainted (ProgramStateRef State, SVal V, TaintTagType Kind=TaintTagGeneric)
	Check if the value is tainted in the given state. More...
bool	isTainted (ProgramStateRef State, SymbolRef Sym, TaintTagType Kind=TaintTagGeneric)
	Check if the symbol is tainted in the given state. More...
bool	isTainted (ProgramStateRef State, const MemRegion *Reg, TaintTagType Kind=TaintTagGeneric)
	Check if the pointer represented by the region is tainted in the given state. More...
void	printTaint (ProgramStateRef State, raw_ostream &Out, const char *nl="\n", const char *sep="")
LLVM_DUMP_METHOD void	dumpTaint (ProgramStateRef State)

Variables
static constexpr TaintTagType	TaintTagGeneric = 0

Typedef Documentation

TaintTagType

using clang::ento::taint::TaintTagType = typedef unsigned

The type of taint, which helps to differentiate between different types of taint.

Definition at line 25 of file Taint.h.

Function Documentation

addPartialTaint()

LLVM_NODISCARD ProgramStateRef clang::ento::taint::addPartialTaint	(	ProgramStateRef	State,
		SymbolRef	ParentSym,
		const SubRegion *	SubRegion,
		TaintTagType	Kind = TaintTagGeneric
	)

Create a new state in a which a sub-region of a given symbol is tainted.

This might be necessary when referring to regions that can not have an individual symbol, e.g. if they are represented by the default binding of a LazyCompoundVal.

addTaint() [1/4]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::addTaint	(	ProgramStateRef	State,
		const MemRegion *	R,
		TaintTagType	Kind = TaintTagGeneric
	)

Create a new state in which the pointer represented by the region is marked as tainted.

addTaint() [2/4]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::addTaint	(	ProgramStateRef	State,
		const Stmt *	S,
		const LocationContext *	LCtx,
		TaintTagType	Kind = TaintTagGeneric
	)

Create a new state in which the value of the statement is marked as tainted.

addTaint() [3/4]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::addTaint	(	ProgramStateRef	State,
		SVal	V,
		TaintTagType	Kind = TaintTagGeneric
	)

Create a new state in which the value is marked as tainted.

addTaint() [4/4]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::addTaint	(	ProgramStateRef	State,
		SymbolRef	Sym,
		TaintTagType	Kind = TaintTagGeneric
	)

Create a new state in which the symbol is marked as tainted.

dumpTaint()

LLVM_DUMP_METHOD void clang::ento::taint::dumpTaint

(

ProgramStateRef

State

)

isTainted() [1/4]

bool clang::ento::taint::isTainted	(	ProgramStateRef	State,
		const MemRegion *	Reg,
		TaintTagType	Kind = TaintTagGeneric
	)

Check if the pointer represented by the region is tainted in the given state.

isTainted() [2/4]

bool clang::ento::taint::isTainted	(	ProgramStateRef	State,
		const Stmt *	S,
		const LocationContext *	LCtx,
		TaintTagType	Kind = TaintTagGeneric
	)

Check if the statement has a tainted value in the given state.

Referenced by clang::ento::taint::TaintBugVisitor::VisitNode().

isTainted() [3/4]

bool clang::ento::taint::isTainted	(	ProgramStateRef	State,
		SVal	V,
		TaintTagType	Kind = TaintTagGeneric
	)

Check if the value is tainted in the given state.

isTainted() [4/4]

bool clang::ento::taint::isTainted	(	ProgramStateRef	State,
		SymbolRef	Sym,
		TaintTagType	Kind = TaintTagGeneric
	)

Check if the symbol is tainted in the given state.

printTaint()

void clang::ento::taint::printTaint	(	ProgramStateRef	State,
		raw_ostream &	Out,
		const char *	nl = "\n",
		const char *	sep = ""
	)

Referenced by dumpTaint().

removeTaint() [1/3]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::removeTaint	(	ProgramStateRef	State,
		const MemRegion *	R
	)

removeTaint() [2/3]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::removeTaint	(	ProgramStateRef	State,
		SVal	V
	)

removeTaint() [3/3]

LLVM_NODISCARD ProgramStateRef clang::ento::taint::removeTaint	(	ProgramStateRef	State,
		SymbolRef	Sym
	)

Variable Documentation

TaintTagGeneric

constexpr TaintTagType clang::ento::taint::TaintTagGeneric = 0

staticconstexpr

Definition at line 27 of file Taint.h.