// instruction set for output element
func (self *Flood) GetFlowInstr() openflow13.Instruction {
// If there are no ports in the flood entry, return
if !self.isInstalled {
return nil
}
groupInstr := openflow13.NewInstrApplyActions()
groupAct := openflow13.NewActionGroup(self.GroupId)
groupInstr.AddAction(groupAct, false)
return groupInstr
}
// instruction set for output element
func (self *Output) GetFlowInstr() openflow13.Instruction {
outputInstr := openflow13.NewInstrApplyActions()
switch self.outputType {
case "drop":
return nil
case "toController":
outputAct := openflow13.NewActionOutput(openflow13.P_CONTROLLER)
// Dont buffer the packets being sent to controller
outputAct.MaxLen = openflow13.OFPCML_NO_BUFFER
outputInstr.AddAction(outputAct, false)
case "port":
outputAct := openflow13.NewActionOutput(self.portNo)
outputInstr.AddAction(outputAct, false)
}
return outputInstr
}
// Install all flow actions
func (self *Flow) installFlowActions(flowMod *openflow13.FlowMod,
instr openflow13.Instruction) error {
var actInstr openflow13.Instruction
var addActn bool = false
// Create a apply_action instruction to be used if its not already created
switch instr.(type) {
case *openflow13.InstrActions:
actInstr = instr
default:
actInstr = openflow13.NewInstrApplyActions()
}
// Loop thru all actions
for _, flowAction := range self.flowActions {
switch flowAction.actionType {
case "setVlan":
// Push Vlan Tag action
pushVlanAction := openflow13.NewActionPushVlan(0x8100)
// Set Outer vlan tag field
vlanField := openflow13.NewVlanIdField(flowAction.vlanId)
setVlanAction := openflow13.NewActionSetField(*vlanField)
// Prepend push vlan & setvlan actions to existing instruction
actInstr.AddAction(setVlanAction, true)
actInstr.AddAction(pushVlanAction, true)
addActn = true
log.Debugf("flow install. Added pushvlan action: %+v, setVlan actions: %+v",
pushVlanAction, setVlanAction)
case "popVlan":
// Create pop vln action
popVlan := openflow13.NewActionPopVlan()
// Add it to instruction
actInstr.AddAction(popVlan, true)
addActn = true
log.Debugf("flow install. Added popVlan action: %+v", popVlan)
case "setMacDa":
// Set Outer MacDA field
macDaField := openflow13.NewEthDstField(flowAction.macAddr, nil)
setMacDaAction := openflow13.NewActionSetField(*macDaField)
// Add set macDa action to the instruction
actInstr.AddAction(setMacDaAction, true)
addActn = true
log.Debugf("flow install. Added setMacDa action: %+v", setMacDaAction)
case "setMacSa":
// Set Outer MacSA field
macSaField := openflow13.NewEthSrcField(flowAction.macAddr, nil)
setMacSaAction := openflow13.NewActionSetField(*macSaField)
// Add set macDa action to the instruction
actInstr.AddAction(setMacSaAction, true)
addActn = true
log.Debugf("flow install. Added setMacSa Action: %+v", setMacSaAction)
case "setTunnelId":
// Set tunnelId field
tunnelIdField := openflow13.NewTunnelIdField(flowAction.tunnelId)
setTunnelAction := openflow13.NewActionSetField(*tunnelIdField)
// Add set tunnel action to the instruction
actInstr.AddAction(setTunnelAction, true)
addActn = true
log.Debugf("flow install. Added setTunnelId Action: %+v", setTunnelAction)
case "setMetadata":
// Set Metadata instruction
metadataInstr := openflow13.NewInstrWriteMetadata(flowAction.metadata, flowAction.metadataMask)
// Add the instruction to flowmod
flowMod.AddInstruction(metadataInstr)
default:
log.Fatalf("Unknown action type %s", flowAction.actionType)
}
}
// Add the instruction to flow if its not already added
if (addActn) && (actInstr != instr) {
// Add the instrction to flowmod
flowMod.AddInstruction(actInstr)
}
return nil
}
// Install all flow actions
func (self *Flow) installFlowActions(flowMod *openflow13.FlowMod,
instr openflow13.Instruction) error {
var actInstr openflow13.Instruction
var addActn bool = false
// Create a apply_action instruction to be used if its not already created
switch instr.(type) {
case *openflow13.InstrActions:
actInstr = instr
default:
actInstr = openflow13.NewInstrApplyActions()
}
// Loop thru all actions
for _, flowAction := range self.flowActions {
switch flowAction.actionType {
case "pushMpls": //SRTE
// Push mpls Tag action
pushMplsAction := openflow13.NewActionPushMpls(0x8847)
// Set Outer mpls label field
mplsLabelField := openflow13.NewMplsLabelField(flowAction.mplsLabel)
setMplsAction := openflow13.NewActionSetField(*mplsLabelField)
// Prepend push mpls & setlabel actions to existing instruction
actInstr.AddAction(setMplsAction, true)
actInstr.AddAction(pushMplsAction, true)
addActn = true
log.Debugf("flow install. Added mpls action: %+v, setMpls actions: %+v",
pushMplsAction, setMplsAction)
case "popVlanPushMpls": //SRTE
// Push mpls Tag action
pushMplsAction := openflow13.NewActionPushMpls(0x8847)
// Set Outer mpls label field
mplsLabelField := openflow13.NewMplsLabelField(flowAction.mplsLabel)
setMplsAction := openflow13.NewActionSetField(*mplsLabelField)
// Prepend push mpls & setlabel actions to existing instruction
actInstr.AddAction(setMplsAction, true)
actInstr.AddAction(pushMplsAction, true)
// Create pop vlan action
popVlan := openflow13.NewActionPopVlan()
// Add it to instruction
actInstr.AddAction(popVlan, true)
addActn = true
log.Debugf("flow install. Added pop vlan action: %+v, and Added mpls action: %+v, setMpls actions: %+v",
popVlan, pushMplsAction, setMplsAction)
case "popMplsPushVlan": //SRTE
// Push Vlan Tag action
pushVlanAction := openflow13.NewActionPushVlan(0x8100)
// Set Outer vlan tag field
vlanField := openflow13.NewVlanIdField(flowAction.vlanId, nil)
setVlanAction := openflow13.NewActionSetField(*vlanField)
// Prepend push vlan & setvlan actions to existing instruction
actInstr.AddAction(setVlanAction, true)
actInstr.AddAction(pushVlanAction, true)
//popmpls action
popMplsAction := openflow13.NewActionPopMpls(0x0800)
actInstr.AddAction(popMplsAction, true)
addActn = true
log.Debugf("flow install. Added pop mpls action: %+v, and Added push vlan action: %+v, setVlan actions: %+v",
popMplsAction, setVlanAction, vlanField)
case "swapMpls": //SRTE - Test this
// Set Outer mpls label field
mplsLabelField := openflow13.NewMplsLabelField(flowAction.mplsLabel)
setMplsAction := openflow13.NewActionSetField(*mplsLabelField)
// Prepend push mpls & setlabel actions to existing instruction
actInstr.AddAction(setMplsAction, true)
addActn = true
log.Debugf("flow install. Added swap mpls - setMpls actions: %+v", setMplsAction)
case "popMpls": //SRTE
// Pop mpls Tag action
popMplsAction := openflow13.NewActionPopMpls(0x0800)
actInstr.AddAction(popMplsAction, true)
addActn = true
log.Debugf("flow install. Pop mpls action: %+v",
popMplsAction)
case "setVlan":
// Push Vlan Tag action
pushVlanAction := openflow13.NewActionPushVlan(0x8100)
// Set Outer vlan tag field
vlanField := openflow13.NewVlanIdField(flowAction.vlanId, nil)
setVlanAction := openflow13.NewActionSetField(*vlanField)
// Prepend push vlan & setvlan actions to existing instruction
actInstr.AddAction(setVlanAction, true)
actInstr.AddAction(pushVlanAction, true)
addActn = true
log.Debugf("flow install. Added pushvlan action: %+v, setVlan actions: %+v",
pushVlanAction, setVlanAction)
case "popVlan":
// Create pop vln action
popVlan := openflow13.NewActionPopVlan()
// Add it to instruction
actInstr.AddAction(popVlan, true)
addActn = true
log.Debugf("flow install. Added popVlan action: %+v", popVlan)
case "setMacDa":
// Set Outer MacDA field
macDaField := openflow13.NewEthDstField(flowAction.macAddr, nil)
setMacDaAction := openflow13.NewActionSetField(*macDaField)
// Add set macDa action to the instruction
actInstr.AddAction(setMacDaAction, true)
addActn = true
log.Debugf("flow install. Added setMacDa action: %+v", setMacDaAction)
case "setMacSa":
// Set Outer MacSA field
macSaField := openflow13.NewEthSrcField(flowAction.macAddr, nil)
setMacSaAction := openflow13.NewActionSetField(*macSaField)
// Add set macDa action to the instruction
actInstr.AddAction(setMacSaAction, true)
addActn = true
log.Debugf("flow install. Added setMacSa Action: %+v", setMacSaAction)
case "setTunnelId":
// Set tunnelId field
tunnelIdField := openflow13.NewTunnelIdField(flowAction.tunnelId)
setTunnelAction := openflow13.NewActionSetField(*tunnelIdField)
// Add set tunnel action to the instruction
actInstr.AddAction(setTunnelAction, true)
addActn = true
log.Debugf("flow install. Added setTunnelId Action: %+v", setTunnelAction)
case "setMetadata":
// Set Metadata instruction
metadataInstr := openflow13.NewInstrWriteMetadata(flowAction.metadata, flowAction.metadataMask)
// Add the instruction to flowmod
flowMod.AddInstruction(metadataInstr)
case "setIPSa":
// Set IP src
ipSaField := openflow13.NewIpv4SrcField(flowAction.ipAddr, nil)
setIPSaAction := openflow13.NewActionSetField(*ipSaField)
// Add set action to the instruction
actInstr.AddAction(setIPSaAction, true)
addActn = true
log.Debugf("flow install. Added setIPSa Action: %+v", setIPSaAction)
case "setIPDa":
// Set IP dst
ipDaField := openflow13.NewIpv4DstField(flowAction.ipAddr, nil)
setIPDaAction := openflow13.NewActionSetField(*ipDaField)
// Add set action to the instruction
actInstr.AddAction(setIPDaAction, true)
addActn = true
log.Debugf("flow install. Added setIPDa Action: %+v", setIPDaAction)
case "setTCPSrc":
// Set TCP src
tcpSrcField := openflow13.NewTcpSrcField(flowAction.l4Port)
setTCPSrcAction := openflow13.NewActionSetField(*tcpSrcField)
// Add set action to the instruction
actInstr.AddAction(setTCPSrcAction, true)
addActn = true
log.Debugf("flow install. Added setTCPSrc Action: %+v", setTCPSrcAction)
case "setTCPDst":
// Set TCP dst
tcpDstField := openflow13.NewTcpDstField(flowAction.l4Port)
setTCPDstAction := openflow13.NewActionSetField(*tcpDstField)
// Add set action to the instruction
actInstr.AddAction(setTCPDstAction, true)
addActn = true
log.Debugf("flow install. Added setTCPDst Action: %+v", setTCPDstAction)
case "setUDPSrc":
// Set UDP src
udpSrcField := openflow13.NewUdpSrcField(flowAction.l4Port)
setUDPSrcAction := openflow13.NewActionSetField(*udpSrcField)
// Add set action to the instruction
actInstr.AddAction(setUDPSrcAction, true)
addActn = true
log.Debugf("flow install. Added setUDPSrc Action: %+v", setUDPSrcAction)
case "setUDPDst":
// Set UDP dst
udpDstField := openflow13.NewUdpDstField(flowAction.l4Port)
setUDPDstAction := openflow13.NewActionSetField(*udpDstField)
// Add set action to the instruction
actInstr.AddAction(setUDPDstAction, true)
addActn = true
log.Debugf("flow install. Added setUDPDst Action: %+v", setUDPDstAction)
default:
log.Fatalf("Unknown action type %s", flowAction.actionType)
}
}
// Add the instruction to flow if its not already added
if (addActn) && (actInstr != instr) {
// Add the instrction to flowmod
flowMod.AddInstruction(actInstr)
}
return nil
}