add eca-cert and eca-sign

CMakeLists.txt

@@ -45,6 +45,8 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(LIBNAT20_SOURCES
     # Add the core library source files here.
     src/core/asn1.c
+    src/core/cbor.c
+    src/core/functionality.c
     src/core/oid.c
     src/core/stream.c
     src/core/x509_ext_open_dice_input.c
@@ -58,8 +60,10 @@ set(LIBNAT20_PUB_HEADERS
     # Add the public headers here.
     # These files will be included in the generation of the API documentation.
     include/nat20/asn1.h
+    include/nat20/cbor.h
     include/nat20/crypto.h
     include/nat20/error.h
+    include/nat20/functionality.h
     include/nat20/oid.h
     include/nat20/stream.h
     include/nat20/types.h
@@ -87,16 +91,36 @@ set(LIBNAT20_CRYPTO_NAT20_PUB_HEADERS
 
 set(LIBNAT20_TEST_SOURCES
     # Add test source files here.
-    src/core/test/test.cpp
     src/core/test/asn1.cpp
+    src/core/test/cbor.cpp
+    src/core/test/functionality.cpp
+    src/core/test/oid.cpp
     src/core/test/stream.cpp
+    src/core/test/test.cpp
+    src/core/test/test_vectors.cpp
     src/core/test/x509.cpp
     src/core/test/x509_ext_open_dice_input.cpp
     src/core/test/x509_ext_tcg_dice_tcb_freshness.cpp
     src/core/test/x509_ext_tcg_dice_tcb_info.cpp
     src/core/test/x509_ext_tcg_dice_ueid.cpp
 )
 
+set(LIBNAT20_SERVICE_SOURCES
+    # Add service source files here.
+    src/service/gnostic.c
+    src/service/messages.c
+    src/service/proxy.c
+    src/service/service.c
+)
+
+set(LIBNAT20_SERVICE_PUB_HEADERS
+    # Add service public headers here.
+    include/nat20/service/gnostic.h
+    include/nat20/service/messages.h
+    include/nat20/service/proxy.h
+    include/nat20/service/service.h
+)
+
 set(LIBNAT20_DOC_PAGES
     # Add additional input files for doxygen here.
     README.md
@@ -153,6 +177,31 @@ target_include_directories(nat20
 
 ###################################################################################################
 
+###################################################################################################
+# The nat20_service library is also part of the product of this project.
+# It will always be compiled.
+add_library(nat20_service STATIC)
+
+target_sources(nat20_service
+    PRIVATE ${LIBNAT20_SERVICE_SOURCES}
+    INTERFACE ${LIBNAT20_SERVICE_PUB_HEADERS}
+)
+
+target_compile_options(nat20_service
+    PRIVATE -pedantic
+    PRIVATE -Wall
+    PRIVATE -Wextra
+    PRIVATE -Werror
+)
+
+target_include_directories(nat20_service
+    PUBLIC include
+)
+
+target_link_libraries(nat20_service nat20)
+
+###################################################################################################
+
 ###################################################################################################
 # The nat20_crypto_nat20 library implements some crypto
 # algorithms using the native C standard library.
@@ -216,6 +265,29 @@ endif()
 
 ###################################################################################################
 
+###################################################################################################
+# Service binary.
+
+add_executable(nat20_service_bin)
+target_sources(nat20_service_bin
+    PRIVATE src/service/gnostic_main.c
+)
+target_link_libraries(nat20_service_bin nat20_service nat20_crypto_nat20 nat20_crypto_boringssl)
+
+###################################################################################################
+
+###################################################################################################
+# Client binary.
+
+add_executable(n20_client_stateless_bin)
+target_sources(n20_client_stateless_bin
+    PRIVATE src/service/client_stateless.c
+)
+target_link_libraries(n20_client_stateless_bin nat20_service nat20_crypto_nat20 nat20_crypto_boringssl)
+
+###################################################################################################
+
+
 ###################################################################################################
 # The libnat20 test suite. It, along with its additional dependencies is only compiled
 # when selected by setting `-DNAT20_WITH_TESTS=ON` on the `cmake -B` command line.
@@ -227,8 +299,8 @@ if (NAT20_WITH_TESTS)
     include(FetchContent)
 
     FetchContent_Declare(
-    googletest
-    URL https://github.com/google/googletest/archive/5376968f6948923e2411081fd9372e71a59d8e77.zip
+        googletest
+        URL https://github.com/google/googletest/archive/5376968f6948923e2411081fd9372e71a59d8e77.zip
     )
     # For Windows: Prevent overriding the parent project's compiler/linker settings
     set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
@@ -242,6 +314,12 @@ if (NAT20_WITH_TESTS)
         FILES_MATCHING PATTERN "*"
     )
 
+    file(INSTALL
+        "src/core/test/test_data/"
+        DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/test_data/core"
+        FILES_MATCHING PATTERN "*"
+    )
+
     # Add the nat20 library test utils.
     add_library(nat20_test_utils STATIC)
     target_sources(nat20_test_utils

include/nat20/asn1.h

@@ -463,7 +463,7 @@ extern void n20_asn1_object_identifier(n20_stream_t *s,
 /**
  * @brief Write an integer complete with ASN.1 header to the given stream.
  *
- * The function expects a buffer `n` of length `len` bytes which
+ * The function expects a buffer slice @p n which
  * it will interpret as integer according to the parameters `little_endian`
  * and `two_complement`. It will format an ASN1 INTEGER into the stream using
  * DER, i.e., leading zero bytes (unsigned) or bytes that have all bits set
@@ -472,16 +472,14 @@ extern void n20_asn1_object_identifier(n20_stream_t *s,
  * If `n` is NULL this function behaves like @ref n20_asn1_null.
  *
  * @param s The stream that is to be updated.
- * @param n The buffer holding the integer.
- * @param len The size of the buffer in bytes.
+ * @param n The buffer slice holding the integer.
  * @param little_endian Indicates if the byteorder of the integer in the given buffer.
  * @param two_complement If `true` the buffer is interpreted as signed 2-complement integer.
  * @param tag_info Tag info override.
  * @sa N20_ASN1_TAG_INTEGER
  */
 extern void n20_asn1_integer(n20_stream_t *s,
-                             uint8_t const *n,
-                             size_t len,
+                             n20_slice_t const n,
                              bool little_endian,
                              bool two_complement,
                              n20_asn1_tag_info_t tag_info);