plugin support

CMakeLists.txt

@@ -18,13 +18,16 @@ set(CHECKBRUTE_SOURCES
     src/mainthread.cpp
     src/brutethread.cpp
     src/checksum.cpp
+    src/checksum_lib.cpp
     src/checksum_qt.cpp
 )
 
 set(CHECKBRUTE_HEADERS
     src/mainthread.h
     src/brutethread.h
+    src/checkbrute.h
     src/checksum.h
+    src/checksum_lib.h
     src/checksum_qt.h
 )
 
@@ -33,6 +36,7 @@ add_executable(checkbrute
     ${CHECKBRUTE_SOURCES}
 )
 
+target_compile_definitions(checkbrute PRIVATE "CHECKBRUTE_PLUGINS=\"${CMAKE_INSTALL_PREFIX}/share/checkbrute/plugins\"")
 target_link_libraries(checkbrute PRIVATE Qt5::Core)
 
 install(TARGETS checkbrute DESTINATION bin)

src/brutethread.cpp

@@ -16,6 +16,7 @@
 * responsible for anything with use of the software, you are self responsible.
 *****************************************************************************/
 
+#include <QDebug>
 #include <QTextStream>
 #include "brutethread.h"
 
@@ -27,7 +28,7 @@ void brutethread::run()
     for (quint64 seek = 0; seek + length < size; seek++) {
         for (checksum *generator : checksum_vector) {
             const QByteArray content = fileContent.mid(seek, length);
-            const QByteArray generatedHash = generator->generateChecksum(content).toHex();
+            const QByteArray generatedHash = generator->generateChecksum(content);
             for (const QByteArray &hash : checksums) {
                 if (!strictMatch && generatedHash.left(hash.length()) == hash) {
                     QTextStream(stdout) << "MATCH: " << generator->formatName() << " Checksum " << hash << " Start " << seek << " End " << seek+length << Qt::endl;

src/checkbrute.h

@@ -0,0 +1,26 @@
+/*****************************************************************************
+* checkbrute Checksum Bruteforcing Tool
+* Copyright (C) 2020 Syping
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* 1. Redistributions of source code must retain the above copyright notice,
+* this list of conditions and the following disclaimer.
+*
+* 2. Redistributions in binary form must reproduce the above copyright notice,
+* this list of conditions and the following disclaimer in the documentation
+* and/or other materials provided with the distribution.
+*
+* This software is provided as-is, no warranties are given to you, we are not
+* responsible for anything with use of the software, you are self responsible.
+*****************************************************************************/
+
+#ifndef CHECKBRUTE_H
+#define CHECKBRUTE_H
+
+#ifndef CHECKBRUTE_PLUGINS
+#define CHECKBRUTE_PLUGINS "/usr/local/share/checkbrute/plugins"
+#endif
+
+#endif // CHECKBRUTE_H

src/checksum_lib.cpp

@@ -0,0 +1,48 @@
+/*****************************************************************************
+* checkbrute Checksum Bruteforcing Tool
+* Copyright (C) 2020 Syping
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* 1. Redistributions of source code must retain the above copyright notice,
+* this list of conditions and the following disclaimer.
+*
+* 2. Redistributions in binary form must reproduce the above copyright notice,
+* this list of conditions and the following disclaimer in the documentation
+* and/or other materials provided with the distribution.
+*
+* This software is provided as-is, no warranties are given to you, we are not
+* responsible for anything with use of the software, you are self responsible.
+*****************************************************************************/
+
+#include "checksum_lib.h"
+#include <iostream>
+#include <cstdint>
+#include <cstring>
+
+checksum_lib::checksum_lib(PluginFormatFunction formatFunc, PluginHash64Function hash64Func, PluginHashSzFunction hashSzFunc) : hash64Func(hash64Func)
+{
+    p_formatName = QString::fromUtf8(formatFunc());
+    p_checksumSize = hashSzFunc();
+}
+
+QByteArray checksum_lib::generateChecksum(const QByteArray &data)
+{
+    const size_t size = data.size();
+    unsigned char *udata = new unsigned char[size];
+    std::memcpy(udata, data.constData(), size);
+    const u_int64_t hash = hash64Func(udata, size);
+    free(udata);
+    return QByteArray::number((quint64)hash, 16);
+}
+
+const QString checksum_lib::formatName()
+{
+    return p_formatName;
+}
+
+int checksum_lib::checksumSize()
+{
+    return p_checksumSize;
+}

src/checksum_lib.h

@@ -0,0 +1,44 @@
+/*****************************************************************************
+* checkbrute Checksum Bruteforcing Tool
+* Copyright (C) 2020 Syping
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* 1. Redistributions of source code must retain the above copyright notice,
+* this list of conditions and the following disclaimer.
+*
+* 2. Redistributions in binary form must reproduce the above copyright notice,
+* this list of conditions and the following disclaimer in the documentation
+* and/or other materials provided with the distribution.
+*
+* This software is provided as-is, no warranties are given to you, we are not
+* responsible for anything with use of the software, you are self responsible.
+*****************************************************************************/
+
+#ifndef CHECKSUM_LIB_H
+#define CHECKSUM_LIB_H
+
+#include "checksum.h"
+
+typedef int (*PluginHashSzFunction)();
+typedef const char* (*PluginFormatFunction)();
+typedef const char* (*PluginVersionFunction)();
+typedef u_int64_t (*PluginHash64Function)(unsigned char*, size_t);
+
+class checksum_lib : public checksum
+{
+    Q_OBJECT
+public:
+    explicit checksum_lib(PluginFormatFunction formatFunc, PluginHash64Function hash64Func, PluginHashSzFunction hashSzFunc);
+    QByteArray generateChecksum(const QByteArray &data);
+    const QString formatName();
+    int checksumSize();
+
+private:
+    PluginHash64Function hash64Func;
+    QString p_formatName;
+    int p_checksumSize;
+};
+
+#endif // CHECKSUM_LIB_H

src/checksum_qt.cpp

@@ -23,7 +23,7 @@ checksum_qt::checksum_qt(QCryptographicHash::Algorithm algorithm, const QString
 
 QByteArray checksum_qt::generateChecksum(const QByteArray &data)
 {
-    return QCryptographicHash::hash(data, algorithm);
+    return QCryptographicHash::hash(data, algorithm).toHex();
 }
 
 const QString checksum_qt::formatName()

src/checksum_qt.h

@@ -36,4 +36,4 @@ private:
     QString name;
 };
 
-#endif // CHECKSUM_MD5_H
+#endif // CHECKSUM_QT5_H

src/main.cpp

@@ -22,17 +22,21 @@
 #include <QCoreApplication>
 #include <QTextStream>
 #include <QFileInfo>
+#include <QLibrary>
 #include <QThread>
+#include <QDir>
 
 // checkbrute includes
 #include "mainthread.h"
+#include "checkbrute.h"
 #include "checksum_qt.h"
+#include "checksum_lib.h"
 
 int main(int argc, char *argv[])
 {
     QCoreApplication a(argc, argv);
     a.setApplicationName("checkbrute");
-    a.setApplicationVersion("0.1.1");
+    a.setApplicationVersion("0.2");
 
     QCommandLineParser commandLineParser;
     commandLineParser.addHelpOption();
@@ -85,11 +89,11 @@ int main(int argc, char *argv[])
     std::map<std::string,checksum*> checksum_map;
     checksum_map["MD4"] = new checksum_qt(QCryptographicHash::Md4, "MD4");
     checksum_map["MD5"] = new checksum_qt(QCryptographicHash::Md5, "MD5");
-    checksum_map["SHA1"] = new checksum_qt(QCryptographicHash::Sha1, "SHA1");
-    checksum_map["SHA2-224"] = new checksum_qt(QCryptographicHash::Sha224, "SHA2-224");
-    checksum_map["SHA2-256"] = new checksum_qt(QCryptographicHash::Sha256, "SHA2-256");
-    checksum_map["SHA2-384"] = new checksum_qt(QCryptographicHash::Sha384, "SHA2-384");
-    checksum_map["SHA2-512"] = new checksum_qt(QCryptographicHash::Sha512, "SHA2-512");
+    checksum_map["SHA-1"] = new checksum_qt(QCryptographicHash::Sha1, "SHA-1");
+    checksum_map["SHA-224"] = new checksum_qt(QCryptographicHash::Sha224, "SHA-224");
+    checksum_map["SHA-256"] = new checksum_qt(QCryptographicHash::Sha256, "SHA-256");
+    checksum_map["SHA-384"] = new checksum_qt(QCryptographicHash::Sha384, "SHA-384");
+    checksum_map["SHA-512"] = new checksum_qt(QCryptographicHash::Sha512, "SHA-512");
     checksum_map["SHA3-224"] = new checksum_qt(QCryptographicHash::Sha3_224, "SHA3-224");
     checksum_map["SHA3-256"] = new checksum_qt(QCryptographicHash::Sha3_256, "SHA3-256");
     checksum_map["SHA3-384"] = new checksum_qt(QCryptographicHash::Sha3_384, "SHA3-384");
@@ -101,6 +105,34 @@ int main(int argc, char *argv[])
     checksum_map["Keccak-512"] = new checksum_qt(QCryptographicHash::Keccak_512, "Keccak-512");
 #endif
 
+    for (const QString &fileName : QDir(CHECKBRUTE_PLUGINS).entryList(QDir::Files, QDir::Name)) {
+        const QString filePath = QString("%1/%2").arg(CHECKBRUTE_PLUGINS, fileName);
+        if (QLibrary::isLibrary(filePath)) {
+            QTextStream(stderr) << "INFO: Load plugin " << fileName << "..." << Qt::endl;
+            QLibrary plugin(filePath);
+            if (plugin.load()) {
+                PluginHash64Function hash64Func = (PluginHash64Function)plugin.resolve("checkbrute_hash64");
+                PluginHashSzFunction hashSzFunc = (PluginHashSzFunction)plugin.resolve("checkbrute_hashsz");
+                PluginFormatFunction formatFunc = (PluginFormatFunction)plugin.resolve("checkbrute_format");
+                PluginVersionFunction versionFunc = (PluginVersionFunction)plugin.resolve("checkbrute_version");
+                if (formatFunc && hash64Func && hashSzFunc) {
+                    QString version = "undefined";
+                    const char *format = formatFunc();
+                    if (versionFunc)
+                        version = QString::fromUtf8(versionFunc());
+                    checksum_map[format] = new checksum_lib(formatFunc, hash64Func, hashSzFunc);
+                    QTextStream(stderr) << "INFO: " << format << " Plugin " << fileName << " loaded" << Qt::endl;
+                }
+                else {
+                    QTextStream(stderr) << "WARNING: Failed loading plugin " << fileName << "!" << Qt::endl;
+                }
+            }
+            else {
+                QTextStream(stderr) << "WARNING: Failed loading plugin " << fileName << "!" << Qt::endl;
+            }
+        }
+    }
+
     mainthread instance(bruteforceFile, checksumsFile, algorithms, start, stop, lengths, threads, strictHash, checksum_map);
     QObject::connect(&instance, &mainthread::finished, &a, &QCoreApplication::quit);
     if (!instance.isInitialised())