SimpleForwardingModule::SimpleForwardingModule(
uint64_t instanceId)
:
AbstractModule(zmf::data::ModuleUniqueId(MODULE_TYPE_ID, instanceId),
MODULE_VERSION,
"SimpleForwardingModule",
{{deviceMgrDependencyType_, deviceMgrDependencyVersion_}}) {
tempPacketOut_OF_1_0 = of_packet_out_new(OF_VERSION_1_0);
tempPacketOut_OF_1_3 = of_packet_out_new(OF_VERSION_1_3);
of_packet_out_buffer_id_set(tempPacketOut_OF_1_0, OF_BUFFER_ID_NO_BUFFER);
of_packet_out_buffer_id_set(tempPacketOut_OF_1_3, OF_BUFFER_ID_NO_BUFFER);
tempActionList_OF_1_0 = of_list_action_new(OF_VERSION_1_0);
tempActionList_OF_1_3 = of_list_action_new(OF_VERSION_1_3);
tempOutPut_OF_1_0 = of_action_output_new(OF_VERSION_1_0);
tempOutPut_OF_1_3 = of_action_output_new(OF_VERSION_1_3);
of_list_action_append_bind(tempActionList_OF_1_0, tempOutPut_OF_1_0);
of_list_action_append_bind(tempActionList_OF_1_3, tempOutPut_OF_1_3);
//of_port_no_t port_no = destinationDevice->switchPort;
//of_action_output_port_set(output, port_no);
of_packet_out_actions_set(tempPacketOut_OF_1_0, tempActionList_OF_1_0);
of_packet_out_actions_set(tempPacketOut_OF_1_3, tempActionList_OF_1_3);
};
/*
* icmp_send_packet_out
*
* Send the ICMP message out
*/
indigo_error_t
icmpa_send_packet_out (of_octets_t *octets)
{
of_packet_out_t *obj;
of_list_action_t *list;
of_action_output_t *action;
indigo_error_t rv;
if (!octets) return INDIGO_ERROR_PARAM;
obj = of_packet_out_new(OF_VERSION_1_3);
AIM_TRUE_OR_DIE(obj != NULL);
list = of_list_action_new(OF_VERSION_1_3);
AIM_TRUE_OR_DIE(list != NULL);
action = of_action_output_new(OF_VERSION_1_3);
AIM_TRUE_OR_DIE(action != NULL);
of_packet_out_buffer_id_set(obj, -1);
of_packet_out_in_port_set(obj, OF_PORT_DEST_CONTROLLER);
of_action_output_port_set(action, OF_PORT_DEST_USE_TABLE);
of_list_append(list, action);
of_object_delete(action);
rv = of_packet_out_actions_set(obj, list);
AIM_ASSERT(rv == 0);
of_object_delete(list);
rv = of_packet_out_data_set(obj, octets);
if (rv < 0) {
AIM_LOG_ERROR("ICMPA: Failed to set data on packet out");
of_packet_out_delete(obj);
return rv;
}
rv = indigo_fwd_packet_out(obj);
of_packet_out_delete(obj);
return rv;
}
/* Generated from of10/packet_in.data */
static int
test_of10_packet_in(void) {
uint8_t binary[] = {
0x01, 0x0a, 0x00, 0x15, 0x12, 0x34, 0x56, 0x78,
0xab, 0xcd, 0xef, 0x01, 0x00, 0x09, 0xff, 0xfe,
0x01, 0x00, 0x61, 0x62, 0x63,
};
of_object_t *obj;
obj = of_packet_in_new(OF_VERSION_1_0);
of_packet_in_buffer_id_set(obj, 2882400001);
{
of_octets_t data = { .bytes=3, .data=(uint8_t *)"\x61\x62\x63" };
of_packet_in_data_set(obj, &data);
}
of_packet_in_in_port_set(obj, 65534);
of_packet_in_reason_set(obj, 1);
of_packet_in_total_len_set(obj, 9);
of_packet_in_xid_set(obj, 305419896);
if (sizeof(binary) != WBUF_CURRENT_BYTES(OF_OBJECT_TO_WBUF(obj))
|| memcmp(binary, WBUF_BUF(OF_OBJECT_TO_WBUF(obj)), sizeof(binary))) {
show_failure(binary, sizeof(binary),
WBUF_BUF(OF_OBJECT_TO_WBUF(obj)),
WBUF_CURRENT_BYTES(OF_OBJECT_TO_WBUF(obj)));
of_object_delete(obj);
return TEST_FAIL;
}
of_object_delete(obj);
return TEST_PASS;
}
/* Generated from of10/packet_out.data */
static int
test_of10_packet_out(void) {
uint8_t binary[] = {
0x01, 0x0d, 0x00, 0x23, 0x12, 0x34, 0x56, 0x78,
0xab, 0xcd, 0xef, 0x01, 0xff, 0xfe, 0x00, 0x10,
0x00, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x08, 0x00, 0x02, 0x00, 0x00,
0x61, 0x62, 0x63,
};
of_object_t *obj;
obj = of_packet_out_new(OF_VERSION_1_0);
of_packet_out_buffer_id_set(obj, 2882400001);
of_packet_out_in_port_set(obj, 65534);
of_packet_out_xid_set(obj, 305419896);
{
of_object_t *list = of_list_action_new(OF_VERSION_1_0);
{
of_object_t *obj = of_action_output_new(OF_VERSION_1_0);
of_action_output_max_len_set(obj, 0);
of_action_output_port_set(obj, 1);
of_list_append(list, obj);
of_object_delete(obj);
}
{
of_object_t *obj = of_action_output_new(OF_VERSION_1_0);
of_action_output_max_len_set(obj, 0);
of_action_output_port_set(obj, 2);
of_list_append(list, obj);
of_object_delete(obj);
}
of_packet_out_actions_set(obj, list);
of_object_delete(list);
}
{
of_octets_t data = { .bytes=3, .data=(uint8_t *)"\x61\x62\x63" };
of_packet_out_data_set(obj, &data);
}
if (sizeof(binary) != WBUF_CURRENT_BYTES(OF_OBJECT_TO_WBUF(obj))
|| memcmp(binary, WBUF_BUF(OF_OBJECT_TO_WBUF(obj)), sizeof(binary))) {
show_failure(binary, sizeof(binary),
WBUF_BUF(OF_OBJECT_TO_WBUF(obj)),
WBUF_CURRENT_BYTES(OF_OBJECT_TO_WBUF(obj)));
of_object_delete(obj);
return TEST_FAIL;
}
of_object_delete(obj);
return TEST_PASS;
}
/* Generated from of10/port_desc.data */
static int
test_of10_port_desc(void) {
uint8_t binary[] = {
0xff, 0xfd, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
0x66, 0x6f, 0x6f, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x02, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x20,
0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x08, 0x00,
};
of_object_t *obj;
obj = of_port_desc_new(OF_VERSION_1_0);
of_port_desc_advertised_set(obj, 32);
of_port_desc_config_set(obj, 16);
of_port_desc_curr_set(obj, 1);
{
of_mac_addr_t hw_addr = { { 1, 2, 3, 4, 5, 6 } };
of_port_desc_hw_addr_set(obj, hw_addr);
}
{
of_port_name_t name = "foo";
of_port_desc_name_set(obj, name);
}
of_port_desc_peer_set(obj, 2048);
of_port_desc_port_no_set(obj, 65533);
of_port_desc_state_set(obj, 512);
of_port_desc_supported_set(obj, 512);
if (sizeof(binary) != WBUF_CURRENT_BYTES(OF_OBJECT_TO_WBUF(obj))
|| memcmp(binary, WBUF_BUF(OF_OBJECT_TO_WBUF(obj)), sizeof(binary))) {
show_failure(binary, sizeof(binary),
WBUF_BUF(OF_OBJECT_TO_WBUF(obj)),
WBUF_CURRENT_BYTES(OF_OBJECT_TO_WBUF(obj)));
of_object_delete(obj);
return TEST_FAIL;
}
of_object_delete(obj);
return TEST_PASS;
}
void SimpleForwardingModule::handlePacketIn(const zmf::data::ZmfMessage& packetInMsg) {
Device* destinationDevice = nullptr;
// Unpack ZmfMessage which contains OpenFlow packet
of_packet_in_t* ofPacketIn = zsdn::of_object_new_from_data_string_copy(packetInMsg.getData());
of_octets_t ofPayload;
of_packet_in_data_get(ofPacketIn, &ofPayload);
// extracted message data
uint8_t* payloadData = ofPayload.data;
uint16_t payloadLength = ofPayload.bytes;
// get the ethernet message frame
Tins::EthernetII ethPacket(payloadData, payloadLength);
of_version_t ofVersion = ofPacketIn->version;
// some ethertype may be excluded from beeing handled by this module. we check if the received packet is one of them.
bool ignoreEtherType = false;
for (uint16_t ignoredType : ignoreEthertypes_) {
if (ethPacket.payload_type() == ignoredType) {
ignoreEtherType = true;
break;
}
}
if (ignoreEtherType) {
getLogger().trace("Ignoring packet due to ethertype");
}
else {
Tins::EthernetII::address_type dstAdress = ethPacket.dst_addr(); // extract the destination address
uint64_t destinationMac = zsdn::NetUtils::mac_address_tins_to_uint64(dstAdress);
// check for broadcast if == TRUE -> skip the message
if (dstAdress.is_broadcast()) {
this->getLogger().trace("Received Broadcast -> Message ignored");
}
else {
this->getLogger().trace("Received Packet in");
// check if the device is known if == FALSE -> request the device by a DeviceManager module
if ((this->devices_.count(destinationMac) > 0)) {
destinationDevice = &this->devices_.find(destinationMac)->second; // get the device out of the map
} else {
destinationDevice = this->requestDevice(destinationMac); // request the device by DeviceManager module
}
if (destinationDevice != nullptr) {
// send the initial message payload to the destination switch port
if (ofVersion == OF_VERSION_UNKNOWN) {
getLogger().warning("Received Packet with OF_VERSION_UNKNOWN. Ignoring Packet.");
return;
}
of_port_no_t port_no = destinationDevice->switchPort;
of_object_t* resultObject = nullptr;
switch (ofVersion) {
case OF_VERSION_UNKNOWN:
break;
case OF_VERSION_1_0:
of_packet_out_data_set(tempPacketOut_OF_1_0, &ofPayload);
of_action_output_port_set(tempOutPut_OF_1_0, port_no);
of_packet_out_actions_set(tempPacketOut_OF_1_0, tempActionList_OF_1_0);
resultObject = tempPacketOut_OF_1_0;
break;
case OF_VERSION_1_1:
break;
case OF_VERSION_1_2:
break;
case OF_VERSION_1_3:
of_packet_out_data_set(tempPacketOut_OF_1_3, &ofPayload);
of_action_output_port_set(tempOutPut_OF_1_3, port_no);
of_packet_out_actions_set(tempPacketOut_OF_1_3, tempActionList_OF_1_3);
resultObject = tempPacketOut_OF_1_3;
break;
case OF_VERSION_1_4:
break;
}
if (resultObject != nullptr) {
std::string messageBytes = zsdn::of_object_serialize_to_data_string(resultObject);
std::map<uint64_t, zmf::data::MessageType>::iterator msgType = this->linkDevicePacketOutMessageTypeMap_.find(
destinationDevice->macAddress);
this->getZmf()->publish(zmf::data::ZmfMessage(
msgType->second,
messageBytes));
if (this->getLogger().trace()) {
this->getLogger().trace(
"Forwarded packet to " + std::to_string(unsigned(destinationDevice->switchDpid)) + ":" +
std::to_string(unsigned(destinationDevice->switchPort)));
}
}
} else {
this->getLogger().trace(
"Not able to forwared packet, host " + dstAdress.to_string() + " unknown");
}
}
}
of_packet_in_delete(ofPacketIn);
};
