TonBERRY/micropython
3
0
Fork 0
Code Pull Requests Activity

extmod/modtls_mbedtls: Add a thread-global ptr for current SSL context.

Browse Source 
This is necessary for mbedTLS callbacks that do not carry any user state,
so those callbacks can be customised per SSL context.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
This commit is contained in:
iabdalkader
2024-10-16 14:08:43 +02:00
committed by Damien George
parent 09ea901317
commit 2644f577f1
3 changed files with 28 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
extmod/modtls_mbedtls.c
View File

@@ -166,6 +166,13 @@ static NORETURN void mbedtls_raise_error(int err) {
#endif
}
// Stores the current SSLContext for use in mbedtls callbacks where the current state is not passed.
static inline void store_active_context(mp_obj_ssl_context_t *ssl_context) {
#if MICROPY_PY_SSL_MBEDTLS_NEED_ACTIVE_CONTEXT
MP_STATE_THREAD(tls_ssl_context) = ssl_context;
#endif
}
static void ssl_check_async_handshake_failure(mp_obj_ssl_socket_t *sslsock, int *errcode) {
if (
#if MBEDTLS_VERSION_NUMBER >= 0x03000000
@@ -497,6 +504,9 @@ static int _mbedtls_ssl_recv(void *ctx, byte *buf, size_t len) {
static mp_obj_t ssl_socket_make_new(mp_obj_ssl_context_t *ssl_context, mp_obj_t sock,
bool server_side, bool do_handshake_on_connect, mp_obj_t server_hostname) {
// Store the current SSL context.
store_active_context(ssl_context);
// Verify the socket object has the full stream protocol
mp_get_stream_raise(sock, MP_STREAM_OP_READ | MP_STREAM_OP_WRITE | MP_STREAM_OP_IOCTL);
@@ -602,6 +612,9 @@ static mp_uint_t socket_read(mp_obj_t o_in, void *buf, mp_uint_t size, int *errc
return MP_STREAM_ERROR;
}
// Store the current SSL context.
store_active_context(o->ssl_context);
int ret = mbedtls_ssl_read(&o->ssl, buf, size);
if (ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) {
// end of stream
@@ -643,6 +656,9 @@ static mp_uint_t socket_write(mp_obj_t o_in, const void *buf, mp_uint_t size, in
return MP_STREAM_ERROR;
}
// Store the current SSL context.
store_active_context(o->ssl_context);
int ret = mbedtls_ssl_write(&o->ssl, buf, size);
if (ret >= 0) {
return ret;
@@ -680,6 +696,9 @@ static mp_uint_t socket_ioctl(mp_obj_t o_in, mp_uint_t request, uintptr_t arg, i
mp_obj_t sock = self->sock;
if (request == MP_STREAM_CLOSE) {
// Clear the SSL context.
store_active_context(NULL);
if (sock == MP_OBJ_NULL) {
// Already closed socket, do nothing.
return 0;