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landing_pad.cpp
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landing_pad.cpp
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#include <iostream>
#include <fstream>
#include <list>
#include <sstream>
#include "boost/tuple/tuple.hpp"
#include "pin.H"
#define MAX_THREADS 512
#define OUT_FILE "lp_violation.out"
#define STAT_FILE "stat.out"
#define TRACE_FILE "trace.out"
#define RET_FILE "ret.out"
#define LD_PATH "/lib64/ld-linux-x86-64.so.2"
ofstream OutFile[MAX_THREADS];
//ofstream OutFile;
ofstream Stat;
ofstream TraceFile;
ofstream RetFile;
//ofstream CallFile;
static UINT64 icount[MAX_THREADS] = {0};
uint32_t numThreads = 0;
THREADID tIds[MAX_THREADS];
uint32_t gotoCount = 0;
PIN_LOCK lock;
static TLS_KEY tls_key;
typedef list <boost::tuple<ADDRINT, ADDRINT> > tulist;
struct thread_data_t {
public:
list<ADDRINT> data_sp; // Tracks sp value **NOT** ret address
list<ADDRINT> data_ret; // Keeps track of return address
tulist tuplist;
public:
thread_data_t(int i) : data_sp(), data_ret(), tuplist() {}
};
thread_data_t *get_tls(THREADID tid)
{
thread_data_t *tdata = static_cast<thread_data_t*>(PIN_GetThreadData(tls_key, tid));
return tdata;
}
VOID PIN_FAST_ANALYSIS_CALL Count(THREADID tid, ADDRINT cnt)
{
icount[tid] += cnt;
}
VOID Trace(TRACE trace, VOID *v)
{
for (BBL bbl = TRACE_BblHead(trace); BBL_Valid(bbl); bbl = BBL_Next(bbl))
BBL_InsertCall(bbl, IPOINT_ANYWHERE, AFUNPTR(Count),
IARG_FAST_ANALYSIS_CALL,
IARG_THREAD_ID,
IARG_UINT32, BBL_NumIns(bbl),
IARG_END);
}
int depth = 10;
VOID Ret(THREADID tid, ADDRINT sp, ADDRINT target, ADDRINT eip, UINT32 push )
{
PIN_GetLock(&lock, tid+1);
unsigned int dep = 0, i = 0;
IMG imgR, imgT;
string retName = "ANON", targetName = "ANON", rR = "unknown", tR = "unknown";
thread_data_t *tdata = get_tls(tid);
/*
list<ADDRINT> *tdata = data_ar[tid];
list<ADDRINT> *retId = ret_ad[tid];
*/
list<ADDRINT>::iterator sp_iter;// = (*tdata).find(sp);
list<ADDRINT>::iterator ret_iter;// = (*tdata).find(sp);
tulist::iterator tup_iter;// = (*tdata).find(sp);
for (sp_iter = tdata->data_sp.begin(); sp_iter != tdata->data_sp.end(); sp_iter++) {
++dep;
if ( *sp_iter == sp )
break;
}
--dep;
/* This is the case where Ret Address is relocated to some other location on stack */
i = 0;
for ( tup_iter = tdata->tuplist.begin(); tup_iter != tdata->tuplist.end(); tup_iter++ ) {
++i;
if ( target == (tup_iter->get<1>())
&& ( (tup_iter->get<0>() == (target - 0x5))
|| ( tup_iter->get<0>() == (target - 0x2)) ) ) {
RetFile << tid << " Ret Addr Relocated " << hex << target << " " << tup_iter->get<0>() << ":" << (target - 2) << ":" << (target - tup_iter->get<0>() ) << " " << std::dec << i << endl;
++gotoCount;
tdata->tuplist.erase( tup_iter );
break;
}
}
//cout << " CHECK1" << endl;
if ( tup_iter != tdata->tuplist.end() ) {
PIN_ReleaseLock(&lock);
return;
}
else {
PIN_LockClient();
imgR = IMG_FindByAddress((ADDRINT)eip);
imgT = IMG_FindByAddress((ADDRINT)target);
PIN_UnlockClient();
if ( IMG_Valid(imgR) ) {
retName = IMG_Name(imgR);
}
if ( IMG_Valid(imgT) ) {
targetName = IMG_Name(imgT);
}
rR = RTN_FindNameByAddress((ADDRINT)eip);
tR = RTN_FindNameByAddress((ADDRINT)target);
if ( LD_PATH == targetName || LD_PATH == retName )
goto overRide;
OutFile[tid] << tid << hex << "LP not found!! " << sp << " " << target << " " << eip << " "<<targetName << " " << retName << " " << tR << " " << rR << endl;
overRide:
PIN_ReleaseLock(&lock);
return;
}
if (push) {
OutFile[tid] << std::dec << tid << "PUSH FOUND" << endl;
tdata->data_sp.erase(tdata->data_sp.begin());
PIN_ReleaseLock(&lock);
return;
}
if (sp_iter == tdata->data_sp.end()) {
/* This is the case where Ret Address is relocated to some other location on stack */
i = 0;
for ( tup_iter = tdata->tuplist.begin(); tup_iter != tdata->tuplist.end(); tup_iter++ ) {
++i;
if ( target == (tup_iter->get<1>()) && ( (tup_iter->get<0>() == (target - 0x5)) || ( tup_iter->get<0>() == (target - 0x2)) ) ) {
RetFile << tid << " Ret Addr Relocated " << hex << target << " " << tup_iter->get<0>() << ":" << (target - 2) << ":" << (target - tup_iter->get<0>() ) << " " << std::dec << i << endl;
++gotoCount;
tdata->tuplist.erase( tup_iter );
break;
}
}
//cout << " CHECK1" << endl;
if ( tup_iter != tdata->tuplist.end() ) {
PIN_ReleaseLock(&lock);
return;
}
PIN_LockClient();
imgR = IMG_FindByAddress((ADDRINT)eip);
imgT = IMG_FindByAddress((ADDRINT)target);
PIN_UnlockClient();
if ( IMG_Valid(imgR) ) {
retName = IMG_Name(imgR);
}
if ( IMG_Valid(imgT) ) {
targetName = IMG_Name(imgT);
}
rR = RTN_FindNameByAddress((ADDRINT)eip);
tR = RTN_FindNameByAddress((ADDRINT)target);
//cout << hex << tup_iter->get<0>() << ":" << tup_iter->get<1>() << endl;
OutFile[tid] << tid << hex << "ret address not found!! " << sp << " " << *(tdata->data_sp.begin())
<< " " << target << " " << tup_iter->get<0>() << " " << eip << " "<<targetName << " " << retName << " " << tR << " " << rR << endl;
PIN_ReleaseLock(&lock);
return;
}
if ( sp_iter != tdata->data_sp.begin() )
OutFile[tid] << tid << hex <<"ret address not in the beginning!! " << target <<" "<< eip << " " << sp << " " << *(tdata->data_sp.begin()) << " " << dec << dep<< endl;
depth -= dep;
tdata->data_sp.erase( tdata->data_sp.begin(), sp_iter);
tdata->data_sp.erase(sp_iter);
PIN_ReleaseLock(&lock);
}
VOID Call(THREADID tid, ADDRINT sp, ADDRINT target, ADDRINT eip, ADDRINT nxtIns )
{
thread_data_t *tdata = get_tls(tid);
PIN_GetLock(&lock, tid+1);
tdata->data_sp.push_front(sp); // Pushing SP register
tdata->data_ret.push_front(nxtIns); // Pushing return address for the call ins
tdata->tuplist.push_front(boost::tuple<ADDRINT, ADDRINT>(eip, nxtIns));
depth++;
PIN_ReleaseLock(&lock);
if ( eip == 12 )
// cout << hex << (nxtIns - eip ) << " : " << nxtIns << " : " << eip << endl;
cout << hex << tdata->tuplist.begin()->get<0>() << " " <<tdata->tuplist.begin()->get<1>() << endl;
}
VOID MemWrite(THREADID tid, ADDRINT ea, ADDRINT eip )
{
IMG imgR;
string retName = "ANON", rR = "unknown";
thread_data_t *tdata = get_tls(tid);
list<ADDRINT>::const_iterator sp_iter;
for (sp_iter = tdata->data_sp.begin(); sp_iter != tdata->data_sp.end(); sp_iter++) {
if ( *sp_iter == ea )
break;
}
if ( sp_iter != tdata->data_sp.end() ) {
PIN_LockClient();
imgR = IMG_FindByAddress((ADDRINT)eip);
PIN_UnlockClient();
if ( IMG_Valid(imgR) ) {
retName = IMG_Name(imgR);
}
rR = RTN_FindNameByAddress((ADDRINT)eip);
OutFile[tid] << tid << hex << "return address overwrite!!! " << ea << " " << eip << " " << retName << " " << rR << endl;
}
}
VOID ImageLoad(IMG img, VOID *v)
{
Stat << hex << IMG_Name(img) << " " << IMG_LowAddress(img) << " " << IMG_HighAddress(img) << " " <<endl;// IMG_NumRegions(img) << endl;
}
VOID ThreadStart( THREADID tid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, tid+1);
tIds[numThreads] = tid;
stringstream fn;
if ( tid != numThreads ) {
cout << " TID NOT SAME AS NUMTHREADS " << tid << " " << numThreads << endl;
}
fn.str("");
fn << OUT_FILE << "_" << numThreads;
OutFile[numThreads].open(fn.str().c_str(), ios::out);
++numThreads;
PIN_ReleaseLock(&lock);
thread_data_t *tdata = new thread_data_t(numThreads-1);
PIN_SetThreadData(tls_key, tdata, tid);
}
VOID InsTrace(THREADID tid, ADDRINT eip)
{
TraceFile << tid << " " << hex << eip << endl;
}
VOID Instruction(INS ins, VOID *v)
{
ADDRINT nextIns;
if (INS_IsRet(ins)) {
INS prev = INS_Prev(ins);
INS_InsertCall(ins, IPOINT_BEFORE, AFUNPTR(Ret),
IARG_THREAD_ID,
IARG_REG_VALUE, REG_STACK_PTR,
IARG_BRANCH_TARGET_ADDR,
IARG_INST_PTR,
IARG_UINT32, (INS_Valid(prev) && INS_Opcode(prev) == XED_CATEGORY_PUSH),
IARG_END);
}
else if (INS_IsCall(ins)) {
nextIns = INS_NextAddress(ins);
INS_InsertCall(ins, IPOINT_TAKEN_BRANCH, AFUNPTR(Call),
IARG_THREAD_ID,
IARG_REG_VALUE, REG_STACK_PTR,
IARG_BRANCH_TARGET_ADDR,
IARG_INST_PTR,
IARG_ADDRINT, nextIns,
IARG_END);
}
else if (INS_IsMemoryWrite(ins)) {
INS_InsertCall(ins, IPOINT_BEFORE, AFUNPTR(MemWrite),
IARG_THREAD_ID,
IARG_MEMORYWRITE_EA,
IARG_INST_PTR,
IARG_END);
}
}
VOID Fini(INT32 code, VOID *v)
{
uint32_t i;
Stat << "DUMP Count DS" << endl;
for (i = 0; i < MAX_THREADS; i++)
Stat << icount[i] << endl;
Stat << "Total Threads started " << numThreads;
cout << " GOTO COUNT " << gotoCount << endl;
for ( i = 0; i < numThreads; i++) {
OutFile[i].close();
}
Stat.close();
TraceFile.close();
RetFile.close();
}
int main(int argc, char * argv[])
{
PIN_InitSymbols();
if (PIN_Init(argc, argv))
return 1;
Stat.open(STAT_FILE);
TraceFile.open(TRACE_FILE);
RetFile.open(RET_FILE);
PIN_InitLock(&lock);
tls_key = PIN_CreateThreadDataKey(0);
// Register ThreadStart to be called when a thread starts.
PIN_AddThreadStartFunction(ThreadStart, 0);
TRACE_AddInstrumentFunction(Trace, 0);
IMG_AddInstrumentFunction(ImageLoad, 0);
INS_AddInstrumentFunction(Instruction, 0);
PIN_AddFiniFunction(Fini, 0);
PIN_StartProgram();
return 0;
}