extmod: Update to support mbedtls 3.x.

Signed-off-by: Damien George <[email protected]>

Author: dpgeorge

extmod/modhashlib.c

@@ -75,7 +75,7 @@ STATIC mp_obj_t hashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg);
 
 #if MICROPY_SSL_MBEDTLS
 
-#if MBEDTLS_VERSION_NUMBER < 0x02070000
+#if MBEDTLS_VERSION_NUMBER < 0x02070000 || MBEDTLS_VERSION_NUMBER >= 0x03000000
 #define mbedtls_sha256_starts_ret mbedtls_sha256_starts
 #define mbedtls_sha256_update_ret mbedtls_sha256_update
 #define mbedtls_sha256_finish_ret mbedtls_sha256_finish
@@ -203,7 +203,7 @@ STATIC mp_obj_t hashlib_sha1_digest(mp_obj_t self_in) {
 
 #if MICROPY_SSL_MBEDTLS
 
-#if MBEDTLS_VERSION_NUMBER < 0x02070000
+#if MBEDTLS_VERSION_NUMBER < 0x02070000 || MBEDTLS_VERSION_NUMBER >= 0x03000000
 #define mbedtls_sha1_starts_ret mbedtls_sha1_starts
 #define mbedtls_sha1_update_ret mbedtls_sha1_update
 #define mbedtls_sha1_finish_ret mbedtls_sha1_finish

extmod/modssl_mbedtls.c

@@ -225,7 +225,11 @@ STATIC mp_obj_ssl_socket_t *socket_new(mp_obj_t sock, struct ssl_args *args) {
         size_t key_len;
         const byte *key = (const byte *)mp_obj_str_get_data(args->key.u_obj, &key_len);
         // len should include terminating null
+        #if MBEDTLS_VERSION_NUMBER >= 0x03000000
+        ret = mbedtls_pk_parse_key(&o->pkey, key, key_len + 1, NULL, 0, mbedtls_ctr_drbg_random, &o->ctr_drbg);
+        #else
         ret = mbedtls_pk_parse_key(&o->pkey, key, key_len + 1, NULL, 0);
+        #endif
         if (ret != 0) {
             ret = MBEDTLS_ERR_PK_BAD_INPUT_DATA; // use general error for all key errors
             goto cleanup;