psa: add support for legacy symbols

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index c81cd1c..b19adbb 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -149,6 +149,34 @@
 #error "MBEDTLS_ECP_C defined, but not all prerequisites"
 #endif
 
+#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR)
+#if defined(MBEDTLS_DEPRECATED_REMOVED)
+#error "PSA_WANT_KEY_TYPE_ECC_KEY_PAIR is deprecated and will be removed in a \
+future version of Mbed TLS. Please switch to new PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_xxx \
+symbols, where xxx can be: USE, IMPORT, EXPORT, GENERATE, DERIVE"
+#elif defined(MBEDTLS_DEPRECATED_WARNING)
+#warning "PSA_WANT_KEY_TYPE_ECC_KEY_PAIR is deprecated and will be removed in a \
+future version of Mbed TLS. Please switch to new PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_xxx \
+symbols, where xxx can be: USE, IMPORT, EXPORT, GENERATE, DERIVE"
+#endif /* MBEDTLS_DEPRECATED_WARNING */
+#endif /* PSA_WANT_KEY_TYPE_ECC_KEY_PAIR */
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
+#if defined(MBEDTLS_DEPRECATED_REMOVED)
+#error "PSA_WANT_KEY_TYPE_RSA_KEY_PAIR is deprecated and will be removed in a \
+future version of Mbed TLS. Please switch to new PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_xxx \
+symbols, where xxx can be: USE, IMPORT, EXPORT, GENERATE, DERIVE"
+#elif defined(MBEDTLS_DEPRECATED_WARNING)
+#warning "PSA_WANT_KEY_TYPE_RSA_KEY_PAIR is deprecated and will be removed in a \
+future version of Mbed TLS. Please switch to new PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_xxx \
+symbols, where xxx can be: USE, IMPORT, EXPORT, GENERATE, DERIVE"
+#endif /* MBEDTLS_DEPRECATED_WARNING */
+#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR */
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_DERIVE)
+#error "PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_DERIVE defined, but feature is not supported"
+#endif
+
 #if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_ASN1_PARSE_C)
 #error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites"
 #endif
diff --git a/include/mbedtls/config_psa.h b/include/mbedtls/config_psa.h
index c32a726..679c3f5 100644
--- a/include/mbedtls/config_psa.h
+++ b/include/mbedtls/config_psa.h
@@ -1024,6 +1024,58 @@
 #define PSA_WANT_ALG_SOME_PAKE 1
 #endif
 
+/* Backward compatibility */
+#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_USE) && \
+    defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_IMPORT) && \
+    defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_EXPORT) && \
+    defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE)
+//defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE) /* Not supported yet */
+#define MBEDTLS_PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_LEGACY
+#endif
+
+/* Backward compatibility */
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_USE) && \
+    defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
+    defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_EXPORT) && \
+    defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+#define MBEDTLS_PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_LEGACY
+#endif
+
+/* Backward compatibility */
+#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_USE) && \
+    defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_IMPORT) && \
+    defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_EXPORT) && \
+    defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE) && \
+    defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_DERIVE)
+#define MBEDTLS_PSA_WANT_KEY_TYPE_DH_KEY_PAIR_LEGACY
+#endif
+
+/* Backward compatibility */
+#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_USE) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_GENERATE) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_DERIVE)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_LEGACY
+#endif
+
+/* Backward compatibility */
+#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_USE) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_LEGACY
+#endif
+
+/* Backward compatibility */
+#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_USE) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_IMPORT) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_EXPORT) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_GENERATE) && \
+    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_DERIVE)
+#define MBEDTLS_PSA_BUILTIN_KEY_TYPE_DH_KEY_PAIR_LEGACY
+#endif
+
 /* These features are always enabled. */
 #define PSA_WANT_KEY_TYPE_DERIVE 1
 #define PSA_WANT_KEY_TYPE_PASSWORD 1