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diff --git a/trunk/registryhive.cpp b/trunk/registryhive.cpp
index 9d35f54..ac30c7a 100644
--- a/trunk/registryhive.cpp
+++ b/trunk/registryhive.cpp
@@ -1,1174 +1,1187 @@
/*******************************************************************************
* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
* with special feautures useful during forensic analysis. *
* *
* This program is free software: you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the Free *
* Software Foundation, either version 3 of the License, or (at your option) *
* any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
* more details. *
* *
* You should have received a copy of the GNU General Public License along with *
* this program. If not, see <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#include "registryhive.h"
#include <QStringList>
#include <QDateTime>
#include <QDebug>
#include <stdlib.h>
#include <stdio.h>
// TODO: __WORDSIZE is not defined under mingw and I currently have no idea how
// to identify a 64bit windows
#ifndef __WORDSIZE
#define __WORDSIZE 32
#endif
#if __WORDSIZE == 64
#define EPOCH_DIFF 0x19DB1DED53E8000
#else
#define EPOCH_DIFF 0x19DB1DED53E8000LL
#endif
/*******************************************************************************
* Public
******************************************************************************/
/*
* RegistryHive
*/
RegistryHive::RegistryHive(QObject *p_parent) : QObject(p_parent) {
this->erro_msg="";
this->is_error=false;
this->hive_file="";
this->p_hive=NULL;
this->is_hive_open=false;
this->is_hive_writable=false;
this->has_changes_to_commit=false;
}
/*
* ~RegistryHive
*/
RegistryHive::~RegistryHive() {
if(this->is_hive_open) this->Close();
}
/*
* Error
*/
bool RegistryHive::Error() {
return this->is_error;
}
/*
* GetErrorMsg
*/
QString RegistryHive::GetErrorMsg() {
QString msg=this->erro_msg;
this->erro_msg="";
this->is_error=false;
return msg;
}
/*
* Open
*/
bool RegistryHive::Open(QString file, bool read_only) {
if(this->is_hive_open) return false;
// Open hive file
this->p_hive=hivex_open(file.toAscii().constData(),
read_only ? 0 : HIVEX_OPEN_WRITE);
if(this->p_hive==NULL) return false;
// Set local vars
this->hive_file=file;
this->is_hive_open=true;
this->is_hive_writable=!read_only;
return true;
}
/*
* Reopen
*/
bool RegistryHive::Reopen(bool read_only) {
if(!this->is_hive_open) return false;
// Close hive first
if(hivex_close(this->p_hive)!=0) {
// According to the docs, even if hivex_close fails, it frees all handles.
// So we consider this fatal and final!
this->hive_file="";
this->is_hive_open=false;
this->is_hive_writable=false;
this->has_changes_to_commit=false;
return false;
}
// Reopen same hive
this->p_hive=hivex_open(this->hive_file.toAscii().constData(),
read_only ? 0 : HIVEX_OPEN_WRITE);
if(this->p_hive==NULL) {
this->hive_file="";
this->is_hive_open=false;
this->is_hive_writable=false;
this->has_changes_to_commit=false;
return false;
}
// Update local vars
this->is_hive_writable=!read_only;
this->has_changes_to_commit=false;
return true;
}
/*
* CommitChanges
*/
bool RegistryHive::CommitChanges() {
if(!this->is_hive_open || !this->is_hive_writable) return false;
if(!this->has_changes_to_commit) return true;
// TODO: Maybe it would be more secure to commit changes to a new file and
// then move it over the original one.
if(hivex_commit(this->p_hive,NULL,0)!=0) {
return false;
}
return true;
}
/*
* Close
*/
bool RegistryHive::Close() {
if(this->is_hive_open) {
// As hivex_close will _ALWAYS_ free the handle, we don't need the following
// values anymore
this->hive_file="";
this->is_hive_open=false;
this->is_hive_writable=false;
this->has_changes_to_commit=false;
// Close hive
if(hivex_close(this->p_hive)!=0) return false;
}
return true;
}
/*
* Filename
*/
QString RegistryHive::Filename() {
if(this->is_hive_open) return this->hive_file;
return QString();
}
/*
* HiveType
*/
RegistryHive::teHiveType RegistryHive::HiveType() {
// Check for SYSTEM hive
if(this->PathExists("\\Select") && this->PathExists("\\MountedDevices"))
return RegistryHive::eHiveType_SYSTEM;
// Check for SOFTWARE hive
if(this->PathExists("\\Microsoft\\Windows\\CurrentVersion") &&
this->PathExists("\\Microsoft\\Windows NT\\CurrentVersion"))
return RegistryHive::eHiveType_SOFTWARE;
// Check for SAM
if(this->PathExists("SAM\\Domains\\Account\\Users"))
return RegistryHive::eHiveType_SAM;
// Check for SECURITY
if(this->PathExists("\\Policy\\Accounts") &&
this->PathExists("\\Policy\\PolAdtEv"))
return RegistryHive::eHiveType_SECURITY;
// Check for NTUSER.DAT
if(this->PathExists("\\Software\\Microsoft\\Windows\\CurrentVersion"))
return RegistryHive::eHiveType_NTUSER;
// Unknown hive
return RegistryHive::eHiveType_UNKNOWN;
}
/*
* HiveTypeToString
*/
QString RegistryHive::HiveTypeToString(teHiveType hive_type) {
switch(hive_type) {
case RegistryHive::eHiveType_SYSTEM:
return "SYSTEM";
break;
case RegistryHive::eHiveType_SOFTWARE:
return "SOFTWARE";
break;
case RegistryHive::eHiveType_SAM:
return "SAM";
break;
case RegistryHive::eHiveType_SECURITY:
return "SECURITY";
break;
case RegistryHive::eHiveType_NTUSER:
return "NTUSER";
break;
default:
return "UNKNOWN";
}
}
/*
* HasChangesToCommit
*/
bool RegistryHive::HasChangesToCommit() {
return this->has_changes_to_commit;
}
/*
* GetNodes
*/
QMap<QString,int> RegistryHive::GetNodes(QString path) {
hive_node_h parent_node;
// Get handle to last node in path
if(!this->GetNodeHandle(path,&parent_node)) return QMap<QString,int>();
// Get and return nodes
return this->GetNodesHelper(parent_node);
}
/*
* GetNodes
*/
QMap<QString,int> RegistryHive::GetNodes(int parent_node) {
if(parent_node==0) {
this->SetError(tr("Invalid parent node handle specified!"));
return QMap<QString,int>();
}
// Get and return nodes
return this->GetNodesHelper(parent_node);
}
/*
* GetKeys
*/
QMap<QString,int> RegistryHive::GetKeys(QString path) {
hive_node_h parent_node;
// Get handle to last node in path
if(!this->GetNodeHandle(path,&parent_node)) return QMap<QString,int>();
// Get and return keys
return this->GetKeysHelper(parent_node);
}
/*
* GetKeys
*/
QMap<QString,int> RegistryHive::GetKeys(int parent_node) {
if(parent_node==0) {
this->SetError(tr("Invalid parent node handle specified!"));
return QMap<QString,int>();
}
// Get and return keys
return this->GetKeysHelper(parent_node);
}
/*
* GetKeyName
*/
bool RegistryHive::GetKeyName(int hive_key, QString &key_name) {
char *buf;
if(!this->is_hive_open) {
this->SetError(tr("Need to operate on an open hive!"));
return false;
}
buf=hivex_value_key(this->p_hive,(hive_value_h)hive_key);
if(buf==NULL) {
this->SetError(tr("Unable to get key name for key '%1'").arg(hive_key));
return false;
}
key_name=QString(buf);
free(buf);
return true;
}
/*
* GetKeyValue
*/
QByteArray RegistryHive::GetKeyValue(QString path,
QString key,
int *p_value_type,
size_t *p_value_len)
{
hive_node_h parent_node;
hive_value_h hive_key;
// Get handle to last node in path
if(!this->GetNodeHandle(path,&parent_node)) return QByteArray();
// Get key handle
hive_key=hivex_node_get_value(this->p_hive,
parent_node,key.toAscii().constData());
if(hive_key==0) {
this->SetError(tr("Unable to get key handle!"));
*p_value_len=-1;
return QByteArray();
}
// Get and return key value
return this->GetKeyValueHelper(hive_key,p_value_type,p_value_len);
}
/*
* GetKeyValue
*/
QByteArray RegistryHive::GetKeyValue(int hive_key,
int *p_value_type,
size_t *p_value_len)
{
if(hive_key==0) {
this->SetError(tr("Invalid key handle specified!"));
*p_value_type=-1;
return QByteArray();
}
// Get and return key value
return this->GetKeyValueHelper(hive_key,p_value_type,p_value_len);
}
/*
* GetKeyModTime
*/
int64_t RegistryHive::GetNodeModTime(QString path) {
hive_node_h node;
// Get handle to last node in path
if(!this->GetNodeHandle(path,&node)) {
this->SetError(tr("Unable to get node handle!"));
return 0;
}
// Get and return node's last modification timestamp
return this->GetNodeModTime(node);
}
/*
* GetKeyModTime
*/
int64_t RegistryHive::GetNodeModTime(int node) {
if(node==0) {
this->SetError(tr("Invalid node handle specified!"));
return 0;
}
// Get and return key's last modification timestamp
return hivex_node_timestamp(this->p_hive,node);
}
/*
* KeyValueToString
*/
QString RegistryHive::KeyValueToString(QByteArray value, int value_type) {
QString ret="";
int i=0;
#define ToHexStr() { \
for(i=0;i<value.size();i++) { \
ret.append(QString().sprintf("%02X ",(uint8_t)(value.constData()[i]))); \
} \
ret.chop(1); \
}
switch(value_type) {
case hive_t_REG_NONE:
// Just a key without a value, but to be certain...
ToHexStr();
break;
case hive_t_REG_SZ:
// A Windows string (encoding is unknown, but often UTF16-LE)
// TODO: What happens if encoding is not UTF16-LE ??? Thx Billy!!!
ret=value.size() ? QString().fromUtf16((ushort*)(value.constData())) : "";
break;
case hive_t_REG_EXPAND_SZ:
// A Windows string that contains %env% (environment variable expansion)
ret=value.size() ? QString().fromUtf16((ushort*)(value.constData())) : "";
break;
case hive_t_REG_BINARY:
// A blob of binary
ToHexStr();
break;
case hive_t_REG_DWORD:
// DWORD (32 bit integer), little endian
ret=QString().sprintf("0x%08X",*(uint32_t*)value.constData());
break;
case hive_t_REG_DWORD_BIG_ENDIAN:
// DWORD (32 bit integer), big endian
ret=QString().sprintf("0x%08X",*(uint32_t*)value.constData());
break;
case hive_t_REG_LINK:
// Symbolic link to another part of the registry tree
ToHexStr();
break;
case hive_t_REG_MULTI_SZ:
// Multiple Windows strings.
// See http://blogs.msdn.com/oldnewthing/archive/2009/10/08/9904646.aspx
ToHexStr();
break;
case hive_t_REG_RESOURCE_LIST:
// Resource list
ToHexStr();
break;
case hive_t_REG_FULL_RESOURCE_DESCRIPTOR:
// Resource descriptor
ToHexStr();
break;
case hive_t_REG_RESOURCE_REQUIREMENTS_LIST:
// Resouce requirements list
ToHexStr();
break;
case hive_t_REG_QWORD:
// QWORD (64 bit integer). Usually little endian.
ret=
QString("0x%1").arg((quint64)(*(uint64_t*)value.constData()),16,16,QChar('0'));
break;
default:
ToHexStr();
}
#undef ToHexStr
return ret;
}
/*
* KeyValueToString
*/
QString RegistryHive::KeyValueToString(QByteArray key_value,
QString format,
int offset,
int length,
bool little_endian)
{
int remaining_data_len;
const char *p_data;
QString ret="";
// Calculate how many bytes are remainig after specified offset
remaining_data_len=key_value.size()-offset;
if(!remaining_data_len>0) {
// Nothing to show
return QString();
}
// Get pointer to data at specified offset
p_data=key_value.constData();
p_data+=offset;
// TODO: This will fail on platforms with different endianness!
#define bswap_16(value) ((((value) & 0xff) << 8) | ((value) >> 8))
#define bswap_32(value) \
(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
(uint32_t)bswap_16((uint16_t)((value) >> 16)))
#define bswap_64(value) \
(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) << 32) | \
(uint64_t)bswap_32((uint32_t)((value) >> 32))) \
// Convert full name
if(format=="int8" && remaining_data_len>=1) {
ret=QString().sprintf("%d",*(int8_t*)p_data);
} else if(format=="uint8" && remaining_data_len>=1) {
ret=QString().sprintf("%u",*(uint8_t*)p_data);
} else if(format=="int16" && remaining_data_len>=2) {
int16_t val=*(int16_t*)p_data;
if(little_endian) ret=QString().sprintf("%d",val);
else ret=QString().sprintf("%d",bswap_16(val));
} else if(format=="uint16" && remaining_data_len>=2) {
uint16_t val=*(uint16_t*)p_data;
if(little_endian) ret=QString().sprintf("%u",val);
else ret=QString().sprintf("%u",bswap_16(val));
} else if(format=="int32" && remaining_data_len>=4) {
int32_t val=*(int32_t*)p_data;
if(little_endian) ret=QString().sprintf("%d",val);
else ret=QString().sprintf("%d",bswap_32(val));
} else if(format=="uint32" && remaining_data_len>=4) {
uint32_t val=*(uint32_t*)p_data;
if(little_endian) ret=QString().sprintf("%u",val);
else ret=QString().sprintf("%u",bswap_32(val));
} else if(format=="unixtime" && remaining_data_len>=4) {
uint32_t val=*(uint32_t*)p_data;
if(!little_endian) val=bswap_32(val);
if(val==0) {
ret="n/a";
} else {
QDateTime date_time;
date_time.setTimeSpec(Qt::UTC);
date_time.setTime_t(val);
ret=date_time.toString("yyyy/MM/dd hh:mm:ss");
}
} else if(format=="int64" && remaining_data_len>=8) {
int64_t val=*(int64_t*)p_data;
if(little_endian) ret=QString("%1").arg(val);
else ret=QString("%1").arg((int64_t)bswap_64(val));
} else if(format=="uint64" && remaining_data_len>=8) {
uint64_t val=*(uint64_t*)p_data;
if(little_endian) ret=QString("%1").arg(val);
else ret=QString("%1").arg(bswap_64(val));
/*
// TODO: Check how one could implement this
} else if(format=="unixtime64" && remaining_data_len>=8) {
if(*(uint64_t*)p_data==0) {
ret="n/a";
} else {
uint64_t secs=*(uint64_t*)p_data;
QDateTime date_time;
date_time.setTimeSpec(Qt::UTC);
// Set 32bit part of date/time
date_time.setTime_t(secs&0xFFFFFFFF);
// Now add high 32bit part of date/time
date_time.addSecs(secs>>32);
ret=date_time.toString("yyyy/MM/dd hh:mm:ss");
}
*/
} else if(format=="filetime" && remaining_data_len>=8) {
uint64_t val=*(uint64_t*)p_data;
if(!little_endian) val=bswap_64(val);
if(val==0) {
ret="n/a";
} else {
// TODO: Warn if >32bit
QDateTime date_time;
date_time.setTimeSpec(Qt::UTC);
date_time.setTime_t(RegistryHive::FiletimeToUnixtime(val));
ret=date_time.toString("yyyy/MM/dd hh:mm:ss");
}
} else if(format=="ascii") {
// TODO: This fails bad if the string is not null terminated!! It might be
// wise checking for a null char here
ret=QString().fromAscii((char*)p_data,length);
} else if(format=="utf16" && remaining_data_len>=2) {
ret=QString().fromUtf16((ushort*)p_data,length);
} else {
// Unknown variant type or another error
return QString();
}
return ret;
}
/*
* KeyValueToStringList
*/
-QStringList RegistryHive::KeyValueToStringList(QByteArray value, int value_type) {
+QStringList RegistryHive::KeyValueToStringList(QByteArray value,
+ int value_type)
+{
QStringList result;
const char str_sep[2]={0x00,0x00};
int last_pos=0,cur_pos=0;
// Only supported on REG_MULTI_SZ values!!
if(value_type!=hive_t_REG_MULTI_SZ) return QStringList();
while(last_pos<value.count() &&
(cur_pos=value.indexOf(QByteArray().fromRawData(str_sep,2),last_pos))!=-1)
{
if(cur_pos!=last_pos) {
// TODO: What happens if encoding is not UTF16-LE ??? Thx Billy!!!
result.append(QString().fromUtf16((ushort*)value
.mid(last_pos,cur_pos-last_pos)
.append(QByteArray().fromRawData(str_sep,2))
.constData()));
}
last_pos=cur_pos+3;
}
return result;
}
+/*
+ * KeyValueToStringList
+ */
+QStringList RegistryHive::KeyValueToStringList(QByteArray value,
+ QString value_type)
+{
+ return RegistryHive::KeyValueToStringList(value,
+ RegistryHive::StringToKeyValueType(
+ value_type));
+}
+
/*
* GetKeyValueTypes
*/
QStringList RegistryHive::GetKeyValueTypes() {
return QStringList()<<"REG_NONE"
<<"REG_SZ"
<<"REG_EXPAND_SZ"
<<"REG_BINARY"
<<"REG_DWORD"
<<"REG_DWORD_BIG_ENDIAN"
<<"REG_LINK"
<<"REG_MULTI_SZ"
<<"REG_RESOURCE_LIST"
<<"REG_FULL_RESOURCE_DESC"
<<"REG_RESOURCE_REQ_LIST"
<<"REG_QWORD";
}
/*
* KeyTypeToString
*/
QString RegistryHive::KeyValueTypeToString(int value_type) {
QString ret="";
switch(value_type) {
case hive_t_REG_NONE:
ret="REG_NONE";
break;
case hive_t_REG_SZ:
ret="REG_SZ";
break;
case hive_t_REG_EXPAND_SZ:
ret="REG_EXPAND_SZ";
break;
case hive_t_REG_BINARY:
ret="REG_BINARY";
break;
case hive_t_REG_DWORD:
ret="REG_DWORD";
break;
case hive_t_REG_DWORD_BIG_ENDIAN:
ret="REG_DWORD_BIG_ENDIAN";
break;
case hive_t_REG_LINK:
ret="REG_LINK";
break;
case hive_t_REG_MULTI_SZ:
ret="REG_MULTI_SZ";
break;
case hive_t_REG_RESOURCE_LIST:
ret="REG_RESOURCE_LIST";
break;
case hive_t_REG_FULL_RESOURCE_DESCRIPTOR:
ret="REG_FULL_RESOURCE_DESC";
break;
case hive_t_REG_RESOURCE_REQUIREMENTS_LIST:
ret="REG_RESOURCE_REQ_LIST";
break;
case hive_t_REG_QWORD:
ret="REG_QWORD";
break;
default:
ret=QString().sprintf("0x%08X",(uint32_t)value_type);
}
return ret;
}
/*
* StringToKeyValueType
*/
int RegistryHive::StringToKeyValueType(QString value_type) {
if(value_type=="REG_NONE") return hive_t_REG_NONE;
if(value_type=="REG_SZ") return hive_t_REG_SZ;
if(value_type=="REG_EXPAND_SZ") return hive_t_REG_EXPAND_SZ;
if(value_type=="REG_BINARY") return hive_t_REG_BINARY;
if(value_type=="REG_DWORD") return hive_t_REG_DWORD;
if(value_type=="REG_DWORD_BIG_ENDIAN") return hive_t_REG_DWORD_BIG_ENDIAN;
if(value_type=="REG_LINK") return hive_t_REG_LINK;
if(value_type=="REG_MULTI_SZ") return hive_t_REG_MULTI_SZ;
if(value_type=="REG_RESOURCE_LIST") return hive_t_REG_RESOURCE_LIST;
if(value_type=="REG_FULL_RESOURCE_DESC")
return hive_t_REG_FULL_RESOURCE_DESCRIPTOR;
if(value_type=="REG_RESOURCE_REQ_LIST")
return hive_t_REG_RESOURCE_REQUIREMENTS_LIST;
if(value_type=="REG_QWORD") return hive_t_REG_QWORD;
// I think this might be a good default :-)
return hive_t_REG_BINARY;
}
/*
* FiletimeToUnixtime
*/
uint64_t RegistryHive::FiletimeToUnixtime(int64_t filetime) {
return (unsigned)((filetime-EPOCH_DIFF)/10000000);
}
/*
* AddNode
*/
int RegistryHive::AddNode(QString parent_node_path, QString node_name) {
if(!this->is_hive_writable) return 0;
// Make sure name does not contain a backslash char
if(node_name.contains('\\')) {
this->SetError(tr("Unable to add node with name '%1'. "
"Names can not include a backslash character.")
.arg(node_name));
return 0;
}
// Get node handle to the parent where the new node should be created
hive_node_h parent_node;
if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
this->SetError(tr("Unable to get node handle for '%1'!")
.arg(parent_node_path));
return 0;
}
// Make sure there is no other node with same name
QMap<QString,int> child_nodes=this->GetNodes(parent_node);
if(child_nodes.contains(node_name.toAscii())) {
this->SetError(tr("The node '%1\\%2' already exists!")
.arg(parent_node_path,node_name));
return 0;
}
// Add new node
hive_node_h new_node=hivex_node_add_child(this->p_hive,
parent_node,
node_name.toAscii().constData());
if(new_node==0) {
this->SetError(tr("Unable to create new node '%1\\%2'!")
.arg(parent_node_path,node_name));
return 0;
}
this->has_changes_to_commit=true;
return new_node;
}
/*
* DeleteNode
*/
bool RegistryHive::DeleteNode(QString node_path) {
if(!this->is_hive_writable) return false;
// Get node handle to the node that should be deleted
hive_node_h node;
if(!this->GetNodeHandle(node_path,&node)) {
this->SetError(tr("Unable to get node handle for '%1'!")
.arg(node_path));
return false;
}
// Delete node
if(hivex_node_delete_child(this->p_hive,node)==-1) {
this->SetError(tr("Unable to delete node '%1'!")
.arg(node_path));
return false;
}
this->has_changes_to_commit=true;
return true;
}
/*
* AddKey
*/
int RegistryHive::AddKey(QString parent_node_path,
QString key_name,
QString key_value_type,
QByteArray key_value)
{
if(!this->is_hive_open || !this->is_hive_writable) {
// TODO: Set error
return false;
}
return this->SetKey(parent_node_path,
key_name,
key_value_type,
key_value,
true);
}
/*
* UpdateKey
*/
int RegistryHive::UpdateKey(QString parent_node_path,
QString key_name,
QString key_value_type,
QByteArray key_value)
{
if(!this->is_hive_open || !this->is_hive_writable) {
// TODO: Set error
return false;
}
return this->SetKey(parent_node_path,
key_name,
key_value_type,
key_value,
false);
}
/*
* DeleteKey
*/
bool RegistryHive::DeleteKey(QString parent_node_path, QString key_name) {
if(!this->is_hive_open || !this->is_hive_writable) {
// TODO: Set error
return false;
}
// libhivex offers no possibility to delete a single key :-(
// As a work around, this function temporarly stores all keys of the specified
// node, then deletes them all an re-creates all but the one that should be
// deleted.
// Get handle to parent node
hive_node_h parent_node;
if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
// TODO: Set error
return false;
}
// Get all keys
QMap<QString,int> node_keys;
node_keys=this->GetKeys(parent_node);
if(node_keys.empty()) {
// TODO: Set error
return false;
}
// Get all key values
QList<QByteArray> node_key_values;
QMapIterator<QString,int> node_keys_it(node_keys);
while(node_keys_it.hasNext()) {
node_keys_it.next();
// TODO
// node_key_values.append(this->GetKeyValue());
}
}
/*******************************************************************************
* Private
******************************************************************************/
/*
* SetError
*/
void RegistryHive::SetError(QString msg) {
this->erro_msg=msg;
this->is_error=true;
}
/*
* GetNodeHandle
*/
bool RegistryHive::GetNodeHandle(QString &path, hive_node_h *p_node) {
QStringList nodes;
int i=0;
// Get root node handle
*p_node=hivex_root(this->p_hive);
if(*p_node==0) {
this->SetError(tr("Unable to get root node!"));
return false;
}
if(path!="\\") {
// If we aren't listing the root node, we have to get a handle to the
// last node in the path. Split path into nodes
nodes=path.split('\\',QString::SkipEmptyParts);
// Iterate to the correct parent node
for(i=0;i<nodes.count();i++) {
// printf("Spotting node '%s'\n",nodes.value(i).toAscii().constData());
*p_node=hivex_node_get_child(this->p_hive,
*p_node,
nodes.value(i).toAscii().constData());
if(*p_node==0) {
this->SetError(tr("Unable to find node '%1'!").arg(nodes.value(i)));
return false;
}
}
}
return true;
}
/*
* GetKeyHandle
*/
bool RegistryHive::GetKeyHandle(QString &parent_node_path,
QString &key_name,
hive_value_h *p_key)
{
// Get handle to parent node
hive_node_h parent_node;
if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
// TODO: Set error
return false;
}
// Get handle to key
*p_key=hivex_node_get_value(this->p_hive,
parent_node,
key_name.toAscii().constData());
if(*p_key==0) {
// TODO: Set error
return false;
}
return true;
}
/*
* GetNodesHelper
*/
QMap<QString,int> RegistryHive::GetNodesHelper(hive_node_h parent_node) {
QMap<QString,int> keys;
char *p_name;
int i=0;
// Get child nodes
hive_node_h *child_nodes=hivex_node_children(this->p_hive,parent_node);
if(child_nodes==NULL) {
this->SetError(
tr("Unable to enumerate child nodes!"));
return QMap<QString,int>();
}
// Build result
keys.clear();
i=0;
while(child_nodes[i]) {
p_name=hivex_node_name(this->p_hive,child_nodes[i]);
if(p_name==NULL) {
this->SetError(tr("Unable to get node name!"));
free(child_nodes);
return QMap<QString,int>();
}
keys.insert(QString(p_name),(int)child_nodes[i]);
free(p_name);
i++;
}
free(child_nodes);
return keys;
}
/*
* GetKeysHelper
*/
QMap<QString,int> RegistryHive::GetKeysHelper(hive_node_h parent_node) {
QMap<QString,int> keys;
char *p_name;
int i=0;
// Get child keys
hive_value_h *p_keys=hivex_node_values(this->p_hive,parent_node);
if(p_keys==NULL) {
this->SetError(
tr("Unable to enumerate child keys!"));
return QMap<QString,int>();
}
// Build result list
keys.clear();
i=0;
while(p_keys[i]) {
p_name=hivex_value_key(this->p_hive,p_keys[i]);
if(p_name==NULL) {
this->SetError(tr("Unable to get key name!"));
return QMap<QString,int>();
}
keys.insert(QString(p_name),p_keys[i]);
free(p_name);
i++;
}
free(p_keys);
return keys;
}
/*
* GetKeyValueHelper
*/
QByteArray RegistryHive::GetKeyValueHelper(hive_value_h hive_key,
int *p_value_type,
size_t *p_value_len)
{
QByteArray key_value;
char *p_key_value;
p_key_value=hivex_value_value(this->p_hive,
hive_key,
(hive_type*)p_value_type,
p_value_len);
if(p_key_value==NULL) {
this->SetError(tr("Unable to get key value!"));
*p_value_type=-1;
return QByteArray();
}
// Feed QByteArray and free p_key_value
key_value=QByteArray(p_key_value,*p_value_len);
free(p_key_value);
return key_value;
}
/*
* PathExists
*/
bool RegistryHive::PathExists(QString path) {
bool ret;
hive_node_h node;
ret=this->GetNodeHandle(path,&node);
if(!ret || this->Error()) {
// Clear error and return false
this->GetErrorMsg();
return false;
}
return true;
}
/*
* GetKey
*/
bool RegistryHive::GetKey(QString &parent_node_path,
QString &key_name,
ptsRegistryKey *key_value)
{
// Get handle to parent node
hive_node_h parent_node;
if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
// TODO: Set error
return false;
}
// Get handle to key
hive_value_h key=hivex_node_get_value(this->p_hive,
parent_node,
key_name.toAscii().constData());
if(key==0) {
// TODO: Set error
return false;
}
// Alloc memory for the ptsRegistryKey struct
*key_value=(ptsRegistryKey)malloc(sizeof(tsRegistryKey));
if(*key_value==NULL) {
// TODO: Set error
return false;
}
// Get key name from hive (We could also simply use the specified name, but
// this allows to us to get the actual upper/lowercase name from hive.
char *buf;
buf=hivex_value_key(this->p_hive,key);
if(buf==NULL) {
// TODO: Set error
return false;
}
// Store name in ptsRegistryKey struct
(*key_value)->name=QString().fromLocal8Bit(buf);
free(buf);
// Get key value
buf=hivex_value_value(this->p_hive,
key,
(hive_type*)&((*key_value)->type),
&((*key_value)->value_len));
if(buf==NULL) {
// TODO: Set error
return false;
}
// Store value in ptsRegistryKey struct
(*key_value)->value=QByteArray(buf,(*key_value)->value_len);
free(buf);
return true;
}
/*
* GetKeys
*/
bool RegistryHive::GetKeys(QString &parent_node_path,
QList<ptsRegistryKey> *p_key_values)
{
// Get handle to parent node
hive_node_h parent_node;
if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
// TODO: Set error
return false;
}
// TODO: Check if this is really needed
// hive_value_h *hivex_node_values (hive_h *h, hive_node_h node);
return false;
}
/*
* SetKey
*/
int RegistryHive::SetKey(QString &parent_node_path,
QString &key_name,
QString &key_value_type,
QByteArray &key_value,
bool create_key)
{
// Get node handle to the node that holds the key to create/update
hive_node_h parent_node;
if(!this->GetNodeHandle(parent_node_path,&parent_node)) {
// TODO: Set error
return 0;
}
// Make sure key exists if we should update it
if(!create_key) {
hive_value_h temp_key=hivex_node_get_value(this->p_hive,
parent_node,
key_name.toAscii().constData());
if(temp_key==0) {
// TODO: Set error
return 0;
}
}
// Create and populate hive_set_value structure
// TODO: From the hivex docs
// Note that the value field is just treated as a list of bytes, and is stored
// directly in the hive. The caller has to ensure correct encoding and
// endianness, for example converting dwords to little endian.
hive_set_value key_val;
key_val.key=(char*)malloc((sizeof(char)*key_name.toAscii().count())+1);
key_val.value=(char*)malloc(sizeof(char)*key_value.size());
if(key_val.key==NULL || key_val.value==NULL) {
// TODO: Set error
return 0;
}
strcpy(key_val.key,key_name.toAscii().constData());
key_val.t=(hive_type)this->StringToKeyValueType(key_value_type);
key_val.len=key_value.size();
memcpy(key_val.value,key_value.constData(),key_value.size());
// Create/Update key
if(hivex_node_set_value(this->p_hive,parent_node,&key_val,0)!=0) {
// TODO: Set error
return 0;
}
// Free the hive_set_value structure
free(key_val.key);
free(key_val.value);
// To make sure everything worked, a hadle to the new key is now requeried
// from hive and then returned
hive_value_h key;
if(!this->GetKeyHandle(parent_node_path,key_name,&key)) {
// TODO: Set error
return 0;
}
this->has_changes_to_commit=true;
return key;
}
diff --git a/trunk/registryhive.h b/trunk/registryhive.h
index 4cc24d1..a64fa2e 100644
--- a/trunk/registryhive.h
+++ b/trunk/registryhive.h
@@ -1,137 +1,139 @@
/*******************************************************************************
* fred Copyright (c) 2011-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
* with special feautures useful during forensic analysis. *
* *
* This program is free software: you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the Free *
* Software Foundation, either version 3 of the License, or (at your option) *
* any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
* more details. *
* *
* You should have received a copy of the GNU General Public License along with *
* this program. If not, see <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#ifndef REGISTRYHIVE_H
#define REGISTRYHIVE_H
#include <QObject>
#include <QMap>
#include <hivex.h>
class RegistryHive : public QObject {
Q_OBJECT
public:
typedef struct sRegistryKey {
QString name;
int type;
size_t value_len;
QByteArray value;
} tsRegistryKey, *ptsRegistryKey;
typedef enum eHiveType {
eHiveType_UNKNOWN=0,
eHiveType_SYSTEM,
eHiveType_SOFTWARE,
eHiveType_SAM,
eHiveType_SECURITY,
eHiveType_NTUSER
} teHiveType;
explicit RegistryHive(QObject *p_parent=0);
~RegistryHive();
bool Error();
QString GetErrorMsg();
bool Open(QString file, bool read_only=true);
bool Reopen(bool read_only=true);
bool CommitChanges();
bool Close();
QString Filename();
teHiveType HiveType();
QString HiveTypeToString(teHiveType hive_type);
bool HasChangesToCommit();
QMap<QString,int> GetNodes(QString path="\\");
QMap<QString,int> GetNodes(int parent_node=0);
QMap<QString,int> GetKeys(QString path="\\");
QMap<QString,int> GetKeys(int parent_node=0);
bool GetKeyName(int hive_key, QString &key_name);
QByteArray GetKeyValue(QString path,
QString key,
int *p_value_type,
size_t *p_value_len);
QByteArray GetKeyValue(int hive_key,
int *p_value_type,
size_t *p_value_len);
int64_t GetNodeModTime(QString path);
int64_t GetNodeModTime(int node);
static QString KeyValueToString(QByteArray value, int value_type);
static QString KeyValueToString(QByteArray value,
QString format,
int offset=0,
int length=0,
bool little_endian=true);
static QStringList KeyValueToStringList(QByteArray value, int value_type);
+ static QStringList KeyValueToStringList(QByteArray value,
+ QString value_type);
static QStringList GetKeyValueTypes();
static QString KeyValueTypeToString(int value_type);
static int StringToKeyValueType(QString value_type);
static uint64_t FiletimeToUnixtime(int64_t filetime);
int AddNode(QString parent_node_path, QString node_name);
bool DeleteNode(QString node_path);
int AddKey(QString parent_node_path,
QString key_name,
QString key_value_type,
QByteArray key_value);
int UpdateKey(QString parent_node_path,
QString key_name,
QString key_value_type,
QByteArray key_value);
bool DeleteKey(QString parent_node_path, QString key_name);
private:
QString erro_msg;
bool is_error;
QString hive_file;
hive_h *p_hive;
bool is_hive_open;
bool is_hive_writable;
bool has_changes_to_commit;
void SetError(QString msg);
bool GetNodeHandle(QString &path, hive_node_h *p_node);
bool GetKeyHandle(QString &parent_node_path,
QString &key_name,
hive_value_h *p_key);
QMap<QString,int> GetNodesHelper(hive_node_h parent_node);
QMap<QString,int> GetKeysHelper(hive_node_h parent_node);
QByteArray GetKeyValueHelper(hive_value_h hive_key,
int *p_value_type,
size_t *p_value_len);
bool PathExists(QString path);
bool GetKey(QString &parent_node_path,
QString &key_name,
ptsRegistryKey *key_value);
bool GetKeys(QString &parent_node_path,
QList<ptsRegistryKey> *p_key_values);
int SetKey(QString &parent_node_path,
QString &key_name,
QString &key_value_type,
QByteArray &key_value,
bool create_key);
};
#endif // REGISTRYHIVE_H
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