Exemple #1
0
static struct wpabuf * eap_tnc_process_fragment(struct eap_tnc_data *data,
						struct eap_method_ret *ret,
						u8 id, u8 flags,
						u32 message_length,
						const u8 *buf, size_t len)
{
	/* Process a fragment that is not the last one of the message */
	if (data->in_buf == NULL && !(flags & EAP_TNC_FLAGS_LENGTH_INCLUDED)) {
		wpa_printf(MSG_DEBUG, "EAP-TNC: No Message Length field in a "
			   "fragmented packet");
		ret->ignore = TRUE;
		return NULL;
	}

	if (data->in_buf == NULL) {
		/* First fragment of the message */
		data->in_buf = wpabuf_alloc(message_length);
		if (data->in_buf == NULL) {
			wpa_printf(MSG_DEBUG, "EAP-TNC: No memory for "
				   "message");
			ret->ignore = TRUE;
			return NULL;
		}
		wpabuf_put_data(data->in_buf, buf, len);
		wpa_printf(MSG_DEBUG, "EAP-TNC: Received %lu bytes in first "
			   "fragment, waiting for %lu bytes more",
			   (unsigned long) len,
			   (unsigned long) wpabuf_tailroom(data->in_buf));
	}

	return eap_tnc_build_frag_ack(id, EAP_CODE_RESPONSE);
}
Exemple #2
0
static struct wpabuf * eap_tnc_buildReq(struct eap_sm *sm, void *priv, u8 id)
{
	struct eap_tnc_data *data = priv;

	switch (data->state) {
	case START:
		tncs_init_connection(data->tncs);
		return eap_tnc_build_start(sm, data, id);
	case CONTINUE:
		if (data->out_buf == NULL) {
			data->out_buf = eap_tnc_build(sm, data);
			if (data->out_buf == NULL) {
				wpa_printf(MSG_DEBUG, "EAP-TNC: Failed to "
					   "generate message");
				return NULL;
			}
			data->out_used = 0;
		}
		return eap_tnc_build_msg(data, id);
	case RECOMMENDATION:
		if (data->out_buf == NULL) {
			data->out_buf = eap_tnc_build_recommendation(sm, data);
			if (data->out_buf == NULL) {
				wpa_printf(MSG_DEBUG, "EAP-TNC: Failed to "
					   "generate recommendation message");
				return NULL;
			}
			data->out_used = 0;
		}
		return eap_tnc_build_msg(data, id);
	case WAIT_FRAG_ACK:
		return eap_tnc_build_msg(data, id);
	case FRAG_ACK:
		return eap_tnc_build_frag_ack(id, EAP_CODE_REQUEST);
	case DONE:
	case FAIL:
		return NULL;
	}

	return NULL;
}