Ejemplos de eap_ikev2_build_msg en C++ (Cpp)

Ejemplo n.º 1

Archivo: eap_server_ikev2.c Proyecto: Bebooo43/android_hardware_mediatek

static struct wpabuf * eap_ikev2_buildReq(struct eap_sm *sm, void *priv, u8 id)
{
	struct eap_ikev2_data *data = priv;

	switch (data->state) {
	case MSG:
		if (data->out_buf == NULL) {
			data->out_buf = ikev2_initiator_build(&data->ikev2);
			if (data->out_buf == NULL) {
				wpa_printf(MSG_DEBUG, "EAP-IKEV2: Failed to "
					   "generate IKEv2 message");
				return NULL;
			}
			data->out_used = 0;
		}
		/* pass through */
	case WAIT_FRAG_ACK:
		return eap_ikev2_build_msg(data, id);
	case FRAG_ACK:
		return eap_ikev2_build_frag_ack(id, EAP_CODE_REQUEST);
	default:
		wpa_printf(MSG_DEBUG, "EAP-IKEV2: Unexpected state %d in "
			   "buildReq", data->state);
		return NULL;
	}
}

Ejemplo n.º 2

static struct wpabuf * eap_ikev2_process(struct eap_sm *sm, void *priv,
					 struct eap_method_ret *ret,
					 const struct wpabuf *reqData)
{
	struct eap_ikev2_data *data = priv;
	const u8 *start, *pos, *end;
	size_t len;
	u8 flags, id;
	u32 message_length = 0;
	struct wpabuf tmpbuf;

	pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_IKEV2, reqData, &len);
	if (pos == NULL) {
		ret->ignore = TRUE;
		return NULL;
	}

	id = eap_get_id(reqData);

	start = pos;
	end = start + len;

	if (len == 0)
		flags = 0; /* fragment ack */
	else
		flags = *pos++;

	if (eap_ikev2_process_icv(data, reqData, flags, pos, &end) < 0) {
		ret->ignore = TRUE;
		return NULL;
	}

	if (flags & IKEV2_FLAGS_LENGTH_INCLUDED) {
		if (end - pos < 4) {
			wpa_printf(MSG_DEBUG, "EAP-IKEV2: Message underflow");
			ret->ignore = TRUE;
			return NULL;
		}
		message_length = WPA_GET_BE32(pos);
		pos += 4;

		if (message_length < (u32) (end - pos)) {
			wpa_printf(MSG_DEBUG, "EAP-IKEV2: Invalid Message "
				   "Length (%d; %ld remaining in this msg)",
				   message_length, (long) (end - pos));
			ret->ignore = TRUE;
			return NULL;
		}
	}

	wpa_printf(MSG_DEBUG, "EAP-IKEV2: Received packet: Flags 0x%x "
		   "Message Length %u", flags, message_length);

	if (data->state == WAIT_FRAG_ACK) {
#ifdef CCNS_PL
		if (len > 1) /* Empty Flags field included in ACK */
#else /* CCNS_PL */
		if (len != 0)
#endif /* CCNS_PL */
		{
			wpa_printf(MSG_DEBUG, "EAP-IKEV2: Unexpected payload "
				   "in WAIT_FRAG_ACK state");
			ret->ignore = TRUE;
			return NULL;
		}
		wpa_printf(MSG_DEBUG, "EAP-IKEV2: Fragment acknowledged");
		eap_ikev2_state(data, PROC_MSG);
		return eap_ikev2_build_msg(data, ret, id);
	}

	if (data->in_buf && eap_ikev2_process_cont(data, pos, end - pos) < 0) {
		ret->ignore = TRUE;
		return NULL;
	}
		
	if (flags & IKEV2_FLAGS_MORE_FRAGMENTS) {
		return eap_ikev2_process_fragment(data, ret, id, flags,
						  message_length, pos,
						  end - pos);
	}

	if (data->in_buf == NULL) {
		/* Wrap unfragmented messages as wpabuf without extra copy */
		wpabuf_set(&tmpbuf, pos, end - pos);
		data->in_buf = &tmpbuf;
	}

	if (ikev2_responder_process(&data->ikev2, data->in_buf) < 0) {
		if (data->in_buf == &tmpbuf)
			data->in_buf = NULL;
		eap_ikev2_state(data, FAIL);
		return NULL;
	}

	if (data->in_buf != &tmpbuf)
		wpabuf_free(data->in_buf);
	data->in_buf = NULL;

	if (data->out_buf == NULL) {
		data->out_buf = ikev2_responder_build(&data->ikev2);
		if (data->out_buf == NULL) {
			wpa_printf(MSG_DEBUG, "EAP-IKEV2: Failed to generate "
				   "IKEv2 message");
			return NULL;
		}
		data->out_used = 0;
	}

	eap_ikev2_state(data, PROC_MSG);
	return eap_ikev2_build_msg(data, ret, id);
}