Split build_info.h: create and populate mbedtls/config_adjust_legacy_crypto.h
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/include/mbedtls/build_info.h b/include/mbedtls/build_info.h
index c0424da..510e1a5 100644
--- a/include/mbedtls/build_info.h
+++ b/include/mbedtls/build_info.h
@@ -120,114 +120,7 @@
#include "mbedtls/config_psa.h"
#endif
-/* Auto-enable MBEDTLS_MD_LIGHT based on MBEDTLS_MD_C.
- * This allows checking for MD_LIGHT rather than MD_LIGHT || MD_C.
- */
-#if defined(MBEDTLS_MD_C)
-#define MBEDTLS_MD_LIGHT
-#endif
-
-/* Auto-enable MBEDTLS_MD_LIGHT if needed by a module that didn't require it
- * in a previous release, to ensure backwards compatibility.
- */
-#if defined(MBEDTLS_ECJPAKE_C) || \
- defined(MBEDTLS_PEM_PARSE_C) || \
- defined(MBEDTLS_ENTROPY_C) || \
- defined(MBEDTLS_PK_C) || \
- defined(MBEDTLS_PKCS12_C) || \
- defined(MBEDTLS_RSA_C) || \
- defined(MBEDTLS_SSL_TLS_C) || \
- defined(MBEDTLS_X509_USE_C) || \
- defined(MBEDTLS_X509_CREATE_C)
-#define MBEDTLS_MD_LIGHT
-#endif
-
-/* MBEDTLS_ECP_LIGHT is auto-enabled by the following symbols:
- * - MBEDTLS_ECP_C because now it consists of MBEDTLS_ECP_LIGHT plus functions
- * for curve arithmetic. As a consequence if MBEDTLS_ECP_C is required for
- * some reason, then MBEDTLS_ECP_LIGHT should be enabled as well.
- * - MBEDTLS_PK_PARSE_EC_EXTENDED and MBEDTLS_PK_PARSE_EC_COMPRESSED because
- * these features are not supported in PSA so the only way to have them is
- * to enable the built-in solution.
- * Both of them are temporary dependencies:
- * - PK_PARSE_EC_EXTENDED will be removed after #7779 and #7789
- * - support for compressed points should also be added to PSA, but in this
- * case there is no associated issue to track it yet.
- * - PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE because Weierstrass key derivation
- * still depends on ECP_LIGHT.
- * - PK_C + USE_PSA + PSA_WANT_ALG_ECDSA is a temporary dependency which will
- * be fixed by #7453.
- */
-#if defined(MBEDTLS_ECP_C) || \
- defined(MBEDTLS_PK_PARSE_EC_EXTENDED) || \
- defined(MBEDTLS_PK_PARSE_EC_COMPRESSED) || \
- defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE)
-#define MBEDTLS_ECP_LIGHT
-#endif
-
-/* MBEDTLS_PK_PARSE_EC_COMPRESSED is introduced in MbedTLS version 3.5, while
- * in previous version compressed points were automatically supported as long
- * as PK_PARSE_C and ECP_C were enabled. As a consequence, for backward
- * compatibility, we auto-enable PK_PARSE_EC_COMPRESSED when these conditions
- * are met. */
-#if defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_ECP_C)
-#define MBEDTLS_PK_PARSE_EC_COMPRESSED
-#endif
-
-/* Helper symbol to state that there is support for ECDH, either through
- * library implementation (ECDH_C) or through PSA. */
-#if (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_ALG_ECDH)) || \
- (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C))
-#define MBEDTLS_CAN_ECDH
-#endif
-
-/* PK module can achieve ECDSA functionalities by means of either software
- * implementations (ECDSA_C) or through a PSA driver. The following defines
- * are meant to list these capabilities in a general way which abstracts how
- * they are implemented under the hood. */
-#if !defined(MBEDTLS_USE_PSA_CRYPTO)
-#if defined(MBEDTLS_ECDSA_C)
-#define MBEDTLS_PK_CAN_ECDSA_SIGN
-#define MBEDTLS_PK_CAN_ECDSA_VERIFY
-#endif /* MBEDTLS_ECDSA_C */
-#else /* MBEDTLS_USE_PSA_CRYPTO */
-#if defined(PSA_WANT_ALG_ECDSA)
-#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC)
-#define MBEDTLS_PK_CAN_ECDSA_SIGN
-#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC */
-#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
-#define MBEDTLS_PK_CAN_ECDSA_VERIFY
-#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */
-#endif /* PSA_WANT_ALG_ECDSA */
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-#if defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) || defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
-#define MBEDTLS_PK_CAN_ECDSA_SOME
-#endif
-
-/* If MBEDTLS_PSA_CRYPTO_C is defined, make sure MBEDTLS_PSA_CRYPTO_CLIENT
- * is defined as well to include all PSA code.
- */
-#if defined(MBEDTLS_PSA_CRYPTO_C)
-#define MBEDTLS_PSA_CRYPTO_CLIENT
-#endif /* MBEDTLS_PSA_CRYPTO_C */
-
-/* The PK wrappers need pk_write functions to format RSA key objects
- * when they are dispatching to the PSA API. This happens under USE_PSA_CRYPTO,
- * and also even without USE_PSA_CRYPTO for mbedtls_pk_sign_ext(). */
-#if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_RSA_C)
-#define MBEDTLS_PK_C
-#define MBEDTLS_PK_WRITE_C
-#define MBEDTLS_PK_PARSE_C
-#endif
-
-/* Helper symbol to state that the PK module has support for EC keys. This
- * can either be provided through the legacy ECP solution or through the
- * PSA friendly MBEDTLS_PK_USE_PSA_EC_DATA (see pk.h for its description). */
-#if defined(MBEDTLS_ECP_C) || \
- (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY))
-#define MBEDTLS_PK_HAVE_ECC_KEYS
-#endif /* MBEDTLS_PK_USE_PSA_EC_DATA || MBEDTLS_ECP_C */
+#include "mbedtls/config_adjust_legacy_crypto.h"
/* The following blocks make it easier to disable all of TLS,
* or of TLS 1.2 or 1.3 or DTLS, without having to manually disable all