/**
* gnutls_deinit:
* @session: is a #gnutls_session_t structure.
*
* This function clears all buffers associated with the @session.
* This function will also remove session data from the session
* database if the session was terminated abnormally.
**/
void
gnutls_deinit (gnutls_session_t session)
{
unsigned int i;
if (session == NULL)
return;
_gnutls_rnd_refresh();
/* remove auth info firstly */
_gnutls_free_auth_info (session);
_gnutls_handshake_internal_state_clear (session);
_gnutls_handshake_io_buffer_clear (session);
_gnutls_ext_free_session_data (session);
for (i = 0; i < MAX_EPOCH_INDEX; i++)
if (session->record_parameters[i] != NULL)
{
_gnutls_epoch_free (session, session->record_parameters[i]);
session->record_parameters[i] = NULL;
}
_gnutls_buffer_clear (&session->internals.handshake_hash_buffer);
_gnutls_buffer_clear (&session->internals.hb_remote_data);
_gnutls_buffer_clear (&session->internals.hb_local_data);
_gnutls_buffer_clear (&session->internals.record_presend_buffer);
_mbuffer_head_clear (&session->internals.record_buffer);
_mbuffer_head_clear (&session->internals.record_recv_buffer);
_mbuffer_head_clear (&session->internals.record_send_buffer);
gnutls_credentials_clear (session);
_gnutls_selected_certs_deinit (session);
gnutls_pk_params_release(&session->key.ecdh_params);
_gnutls_mpi_release (&session->key.ecdh_x);
_gnutls_mpi_release (&session->key.ecdh_y);
_gnutls_mpi_release (&session->key.KEY);
_gnutls_mpi_release (&session->key.client_Y);
_gnutls_mpi_release (&session->key.client_p);
_gnutls_mpi_release (&session->key.client_g);
_gnutls_mpi_release (&session->key.u);
_gnutls_mpi_release (&session->key.a);
_gnutls_mpi_release (&session->key.x);
_gnutls_mpi_release (&session->key.A);
_gnutls_mpi_release (&session->key.B);
_gnutls_mpi_release (&session->key.b);
/* RSA */
_gnutls_mpi_release (&session->key.rsa[0]);
_gnutls_mpi_release (&session->key.rsa[1]);
_gnutls_mpi_release (&session->key.dh_secret);
gnutls_free (session);
}
/**
* gnutls_deinit:
* @session: is a #gnutls_session_t structure.
*
* This function clears all buffers associated with the @session.
* This function will also remove session data from the session
* database if the session was terminated abnormally.
**/
void
gnutls_deinit (gnutls_session_t session)
{
unsigned int i;
if (session == NULL)
return;
/* remove auth info firstly */
_gnutls_free_auth_info (session);
_gnutls_handshake_internal_state_clear (session);
_gnutls_handshake_io_buffer_clear (session);
_gnutls_ext_free_session_data (session);
for (i = 0; i < MAX_EPOCH_INDEX; i++)
if (session->record_parameters[i] != NULL)
{
_gnutls_epoch_free (session, session->record_parameters[i]);
session->record_parameters[i] = NULL;
}
_gnutls_buffer_clear (&session->internals.handshake_hash_buffer);
_mbuffer_head_clear (&session->internals.record_buffer);
_mbuffer_head_clear (&session->internals.record_recv_buffer);
_mbuffer_head_clear (&session->internals.record_send_buffer);
gnutls_credentials_clear (session);
_gnutls_selected_certs_deinit (session);
if (session->key != NULL)
{
_gnutls_mpi_release (&session->key->KEY);
_gnutls_mpi_release (&session->key->client_Y);
_gnutls_mpi_release (&session->key->client_p);
_gnutls_mpi_release (&session->key->client_g);
_gnutls_mpi_release (&session->key->u);
_gnutls_mpi_release (&session->key->a);
_gnutls_mpi_release (&session->key->x);
_gnutls_mpi_release (&session->key->A);
_gnutls_mpi_release (&session->key->B);
_gnutls_mpi_release (&session->key->b);
/* RSA */
_gnutls_mpi_release (&session->key->rsa[0]);
_gnutls_mpi_release (&session->key->rsa[1]);
_gnutls_mpi_release (&session->key->dh_secret);
gnutls_free (session->key);
session->key = NULL;
}
memset (session, 0, sizeof (struct gnutls_session_int));
gnutls_free (session);
}
/**
* gnutls_record_discard_queued:
* @session: is a #gnutls_session_t structure.
*
* This function discards all queued to be sent packets in a DTLS session.
* These are the packets queued after an interrupted gnutls_record_send().
*
* Returns: The number of bytes discarded.
*
* Since: 3.4.0
**/
size_t
gnutls_record_discard_queued(gnutls_session_t session)
{
size_t ret = session->internals.record_send_buffer.byte_length;
_mbuffer_head_clear(&session->internals.record_send_buffer);
return ret;
}
int _mbuffer_linearize(mbuffer_head_st * buf)
{
mbuffer_st *bufel, *cur;
gnutls_datum_t msg;
size_t pos = 0;
if (buf->length <= 1) {
/* Nothing to do */
return 0;
}
bufel = _mbuffer_alloc(buf->byte_length);
if (!bufel) {
gnutls_assert();
return GNUTLS_E_MEMORY_ERROR;
}
for (cur = _mbuffer_head_get_first(buf, &msg);
msg.data != NULL; cur = _mbuffer_head_get_next(cur, &msg)) {
memcpy(&bufel->msg.data[pos], msg.data, msg.size);
bufel->msg.size += msg.size;
pos += msg.size;
}
_mbuffer_head_clear(buf);
_mbuffer_enqueue(buf, bufel);
return 0;
}
/**
* gnutls_deinit:
* @session: is a #gnutls_session_t type.
*
* This function clears all buffers associated with the @session.
* This function will also remove session data from the session
* database if the session was terminated abnormally.
**/
void gnutls_deinit(gnutls_session_t session)
{
unsigned int i;
if (session == NULL)
return;
/* remove auth info firstly */
_gnutls_free_auth_info(session);
_gnutls_handshake_internal_state_clear(session);
_gnutls_handshake_io_buffer_clear(session);
_gnutls_ext_free_session_data(session);
for (i = 0; i < MAX_EPOCH_INDEX; i++)
if (session->record_parameters[i] != NULL) {
_gnutls_epoch_free(session,
session->record_parameters[i]);
session->record_parameters[i] = NULL;
}
_gnutls_buffer_clear(&session->internals.handshake_hash_buffer);
_gnutls_buffer_clear(&session->internals.hb_remote_data);
_gnutls_buffer_clear(&session->internals.hb_local_data);
_gnutls_buffer_clear(&session->internals.record_presend_buffer);
_mbuffer_head_clear(&session->internals.record_buffer);
_mbuffer_head_clear(&session->internals.record_recv_buffer);
_mbuffer_head_clear(&session->internals.record_send_buffer);
_gnutls_free_datum(&session->internals.resumption_data);
gnutls_free(session->internals.rexts);
gnutls_free(session->internals.rsup);
gnutls_credentials_clear(session);
_gnutls_selected_certs_deinit(session);
gnutls_free(session);
}
void _dtls_reset_hsk_state(gnutls_session_t session)
{
session->internals.dtls.flight_init = 0;
drop_usage_count(session, &session->internals.handshake_send_buffer);
_mbuffer_head_clear(&session->internals.handshake_send_buffer);
}