feat: add storage_compact.c (#39)

Compact storage implementation used for the Nordic Semiconductor nRF91 Series SoftSIM project.

Author: benjaminbruun

CMakeLists.txt

@@ -16,6 +16,7 @@ option(CONFIG_EXTERNAL_CRYPTO_IMPL "Use external crypto implementations")
 option(CONFIG_EXTERNAL_KEY_LOAD "Use crypto exstension for loading keys")
 option(CONFIG_USE_UTILS 		"Use the extra functionality found in the collective utils folder")
 option(CONFIG_NO_DEFAULT_IMPL 	"Build with no default implementation")
+option(CONFIG_COMPACT_STORAGE 	"Build with compact storage implementation")
 option(CONFIG_BUILD_LIB_ONLY 	"Build libraries only")
 
 set(CONFIG_SS_STORAGE_PATH_DEFAULT "./files" CACHE STRING "Default storage path for SoftSIM filesystem")
@@ -46,6 +47,11 @@ if(CONFIG_EXTERNAL_CRYPTO_IMPL)
 	add_compile_definitions(CONFIG_EXTERNAL_CRYPTO_IMPL)
 endif()
 
+if(CONFIG_COMPACT_STORAGE)
+  message(STATUS "Using compact storage implementation (from nRF91 SoftSIM project)")
+  add_compile_definitions(CONFIG_COMPACT_STORAGE)
+endif()
+
 if(CONFIG_EXTERNAL_KEY_LOAD)
 	add_compile_definitions(CONFIG_EXTERNAL_KEY_LOAD)
 endif()

src/softsim/CMakeLists.txt

@@ -5,12 +5,20 @@ add_subdirectory(crypto)
 add_subdirectory(milenage)
 add_subdirectory(uicc)
 
-add_library(storage STATIC storage.c
-                           $<$<NOT:$<BOOL:${CONFIG_NO_DEFAULT_IMPL}>>:fs.c>)
+if(CONFIG_COMPACT_STORAGE)
+  set(storage_sources storage_compact.c)
+else()
+  set(storage_sources storage.c)
+  if(NOT CONFIG_NO_DEFAULT_IMPL)
+    list(APPEND storage_sources fs.c)
+  endif()
+endif()
+
+add_library(storage STATIC ${storage_sources})
+
 target_include_directories(storage PUBLIC ${PROJECT_SOURCE_DIR}/include)
 
 if(NOT CONFIG_BUILD_LIB_ONLY)
   add_executable(softsim main.c)
   target_link_libraries(softsim uicc milenage crypto storage $<$<TARGET_EXISTS:utils>:utils>)
 endif()
-