void MicrosoftSTL::init(Process* self)
{
p = self;
OffsetGroup * strGrp = p->getDescriptor()->getGroup("string")->getGroup("MSVC");
STLSTR_buf_off = strGrp->getOffset("buffer");
STLSTR_size_off = strGrp->getOffset("size");
STLSTR_cap_off = strGrp->getOffset("capacity");
}
std::string OffsetGroup::getFullName()
{
string temp, accum;
OffsetGroup * curr = this;
while(curr)
{
temp = curr->getName() + string("/") + accum;
accum = temp;
curr = curr->getParent();
}
return accum;
}
void OffsetGroup::copy(const OffsetGroup * old)
{
OGd->addresses = old->OGd->addresses;
OGd->offsets = old->OGd->offsets;
OGd->hexvals = old->OGd->hexvals;
OGd->strings = old->OGd->strings;
for(groups_Iter it = old->OGd->groups.begin(); it != old->OGd->groups.end(); it++)
{
OffsetGroup * ogn = new OffsetGroup((*it).first, this);
ogn->copy((*it).second);
OGd->groups[(*it).first] = ogn;
}
}
bool Translation::InitReadNames()
{
Core & c = Core::getInstance();
try
{
OffsetGroup * OG = c.vinfo->getGroup("name");
d->name_firstname_offset = OG->getOffset("first");
d->name_nickname_offset = OG->getOffset("nick");
d->name_words_offset = OG->getOffset("second_words");
d->name_parts_offset = OG->getOffset("parts_of_speech");
d->name_language_offset = OG->getOffset("language");
d->name_set_offset = OG->getOffset("has_name");
}
catch(exception &)
{
d->namesFailed = true;
return false;
}
d->namesInited = true;
return true;
}
void VersionInfoFactory::ParseOffsets(TiXmlElement * parent, VersionInfo* target, bool initial)
{
// we parse the groups iteratively instead of recursively
// breadcrubs acts like a makeshift stack
// first pair entry stores the current element of that level
// second pair entry the group object from OffsetGroup
typedef triple< TiXmlElement *, OffsetGroup *, INVAL_TYPE> groupTriple;
vector< groupTriple > breadcrumbs;
{
TiXmlElement* pEntry;
// we get the <Offsets>, look at the children
pEntry = parent->FirstChildElement();
if(!pEntry)
return;
const char *cstr_invalid = parent->Attribute("valid");
INVAL_TYPE parent_inval = NOT_SET;
if(cstr_invalid)
{
if(strcmp(cstr_invalid,"false") == 0)
parent_inval = IS_INVALID;
else if(strcmp(cstr_invalid,"true") == 0)
parent_inval = IS_VALID;
}
OffsetGroup * currentGroup = reinterpret_cast<OffsetGroup *> (target);
currentGroup->setInvalid(parent_inval);
breadcrumbs.push_back(groupTriple(pEntry,currentGroup, parent_inval));
}
// work variables
OffsetGroup * currentGroup = 0;
TiXmlElement * currentElem = 0;
INVAL_TYPE parent_inval = NOT_SET;
//cerr << "<Offsets>"<< endl;
while(1)
{
// get current work variables
currentElem = breadcrumbs.back().first;
currentGroup = breadcrumbs.back().second;
parent_inval = breadcrumbs.back().third;
// we reached the end of the current group?
if(!currentElem)
{
// go one level up
breadcrumbs.pop_back();
// exit if no more work
if(breadcrumbs.empty())
{
break;
}
else
{
//cerr << "</group>" << endl;
continue;
}
}
if(!currentGroup)
{
groupTriple & gp = breadcrumbs.back();
gp.first = gp.first->NextSiblingElement();
continue;
}
// skip non-elements
if (currentElem->Type() != TiXmlNode::ELEMENT)
{
groupTriple & gp = breadcrumbs.back();
gp.first = gp.first->NextSiblingElement();
continue;
}
// we have a valid current element and current group
// get properties
string type = currentElem->Value();
std::transform(type.begin(), type.end(), type.begin(), ::tolower);
const char *cstr_name = currentElem->Attribute("name");
if(!cstr_name)
{
// ERROR, missing attribute
}
// evaluate elements
const char *cstr_value = currentElem->Attribute("value");
const char *cstr_invalid = currentElem->Attribute("valid");
INVAL_TYPE child_inval = parent_inval;
if(cstr_invalid)
{
if(strcmp(cstr_invalid,"false") == 0)
child_inval = IS_INVALID;
else if(strcmp(cstr_invalid,"true") == 0)
child_inval = IS_VALID;
}
if(type == "group")
{
// create or get group
OffsetGroup * og;
if(initial)
og = currentGroup->createGroup(cstr_name);
else
og = currentGroup->getGroup(cstr_name);
// advance this level to the next element
groupTriple & gp = breadcrumbs.back();
gp.first = currentElem->NextSiblingElement();
if(!og)
{
string fullname = currentGroup->getFullName() + cstr_name;
throw Error::MissingMemoryDefinition("group", fullname);
}
// add a new level that will be processed in the next step
breadcrumbs.push_back(groupTriple(currentElem->FirstChildElement(), og, child_inval));
og->setInvalid(child_inval);
continue;
}
else if(type == "address")
{
if(child_inval == NOT_SET)
child_inval = IS_VALID;
if(initial)
{
currentGroup->createAddress(cstr_name);
}
else if(cstr_value)
{
currentGroup->setAddress(cstr_name, cstr_value, child_inval);
}
else
{
currentGroup->setAddressValidity(cstr_name, child_inval);
}
}
else if(type == "offset")
{
if(child_inval == NOT_SET)
child_inval = IS_VALID;
if(initial)
{
currentGroup->createOffset(cstr_name);
}
else if(cstr_value)
{
currentGroup->setOffset(cstr_name, cstr_value, child_inval);
}
else
{
currentGroup->setOffsetValidity(cstr_name, child_inval);
}
}
else if(type == "string")
{
if(child_inval == NOT_SET)
child_inval = IS_VALID;
if(initial)
{
currentGroup->createString(cstr_name);
}
else if(cstr_value)
{
currentGroup->setString(cstr_name, cstr_value, child_inval);
}
else
{
currentGroup->setStringValidity(cstr_name, child_inval);
}
}
else if(type == "hexvalue")
{
if(child_inval == NOT_SET)
child_inval = IS_VALID;
if(initial)
{
currentGroup->createHexValue(cstr_name);
}
else if(cstr_value)
{
currentGroup->setHexValue(cstr_name, cstr_value, child_inval);
}
else
{
currentGroup->setHexValueValidity(cstr_name, child_inval);
}
}
// advance to next element
groupTriple & gp = breadcrumbs.back();
gp.first = currentElem->NextSiblingElement();
continue;
}
//cerr << "</Offsets>"<< endl;
}
NormalProcess::NormalProcess(uint32_t pid, vector <VersionInfo *> & known_versions)
: d(new Private())
{
HMODULE hmod = NULL;
DWORD junk;
HANDLE hProcess;
bool found = false;
IMAGE_NT_HEADERS32 pe_header;
IMAGE_SECTION_HEADER sections[16];
d->identified = false;
// open process
hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE, pid );
if (NULL == hProcess)
return;
// try getting the first module of the process
if(EnumProcessModules(hProcess, &hmod, 1 * sizeof(HMODULE), &junk) == 0)
{
CloseHandle(hProcess);
// cout << "EnumProcessModules fail'd" << endl;
return; //if enumprocessModules fails, give up
}
// got base ;)
uint32_t base = (uint32_t)hmod;
// temporarily assign this to allow some checks
d->my_handle = hProcess;
d->my_main_thread = 0;
// read from this process
try
{
uint32_t pe_offset = readDWord(base+0x3C);
read(base + pe_offset , sizeof(pe_header), (uint8_t *)&pe_header);
read(base + pe_offset+ sizeof(pe_header), sizeof(sections) , (uint8_t *)§ions );
d->my_handle = 0;
}
catch (exception &)
{
CloseHandle(hProcess);
d->my_handle = 0;
return;
}
// see if there's a version entry that matches this process
vector<VersionInfo*>::iterator it;
for ( it=known_versions.begin() ; it < known_versions.end(); it++ )
{
// filter by OS
if(VersionInfo::OS_WINDOWS != (*it)->getOS())
continue;
uint32_t pe_timestamp;
// filter by timestamp, skip entries without a timestamp
try
{
pe_timestamp = (*it)->getPE();
}
catch(Error::MissingMemoryDefinition&)
{
continue;
}
if (pe_timestamp != pe_header.FileHeader.TimeDateStamp)
continue;
// all went well
{
printf("Match found! Using version %s.\n", (*it)->getVersion().c_str());
d->identified = true;
// give the process a data model and memory layout fixed for the base of first module
VersionInfo *m = new VersionInfo(**it);
m->RebaseAll(base);
// keep track of created memory_info object so we can destroy it later
d->my_descriptor = m;
m->setParentProcess(this);
// process is responsible for destroying its data model
d->my_pid = pid;
d->my_handle = hProcess;
d->identified = true;
// TODO: detect errors in thread enumeration
vector<uint32_t> threads;
getThreadIDs( threads );
d->my_main_thread = OpenThread(THREAD_ALL_ACCESS, FALSE, (DWORD) threads[0]);
OffsetGroup * strGrp = m->getGroup("string")->getGroup("MSVC");
d->STLSTR_buf_off = strGrp->getOffset("buffer");
d->STLSTR_size_off = strGrp->getOffset("size");
d->STLSTR_cap_off = strGrp->getOffset("capacity");
found = true;
break; // break the iterator loop
}
}
// close handle of processes that aren't DF
if(!found)
{
CloseHandle(hProcess);
}
}
