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vxlan_gpe_vppcalls.go
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vxlan_gpe_vppcalls.go
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package vpp2001_379
import (
"fmt"
"net"
ifs "github.com/ligato/vpp-agent/api/models/vpp/interfaces"
vpp_gpe "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/vxlan_gpe"
)
func (h *InterfaceVppHandler) vxLanGpeAddDelTunnel(isAdd uint8, vxLan *ifs.VxlanLink, vrf, multicastIf uint32) (uint32, error) {
req := &vpp_gpe.VxlanGpeAddDelTunnel{
McastSwIfIndex: multicastIf,
EncapVrfID: vrf,
DecapVrfID: vxLan.Gpe.DecapVrfId,
Protocol: uint8(vxLan.Gpe.Protocol),
Vni: vxLan.Vni,
IsAdd: isAdd,
}
if vxLan.SrcAddress == vxLan.DstAddress {
return 0, fmt.Errorf("source and destination addresses must not be the same")
}
srcAddr := net.ParseIP(vxLan.SrcAddress).To4()
dstAddr := net.ParseIP(vxLan.DstAddress).To4()
if srcAddr == nil && dstAddr == nil {
srcAddr = net.ParseIP(vxLan.SrcAddress).To16()
dstAddr = net.ParseIP(vxLan.DstAddress).To16()
req.IsIPv6 = 1
if srcAddr == nil || dstAddr == nil {
return 0, fmt.Errorf("invalid VXLAN address, src: %s, dst: %s", srcAddr, dstAddr)
}
} else if srcAddr == nil && dstAddr != nil || srcAddr != nil && dstAddr == nil {
return 0, fmt.Errorf("IP version mismatch for VXLAN destination and source IP addresses")
}
req.Local = []byte(srcAddr)
req.Remote = []byte(dstAddr)
reply := &vpp_gpe.VxlanGpeAddDelTunnelReply{}
if err := h.callsChannel.SendRequest(req).ReceiveReply(reply); err != nil {
return 0, err
}
return reply.SwIfIndex, nil
}
// AddVxLanGpeTunnel adds new VxLAN-GPE interface.
func (h *InterfaceVppHandler) AddVxLanGpeTunnel(ifName string, vrf, multicastIf uint32, vxLan *ifs.VxlanLink) (uint32, error) {
swIfIndex, err := h.vxLanGpeAddDelTunnel(1, vxLan, vrf, multicastIf)
if err != nil {
return 0, err
}
return swIfIndex, h.SetInterfaceTag(ifName, swIfIndex)
}
// DeleteVxLanGpeTunnel removes VxLAN-GPE interface.
func (h *InterfaceVppHandler) DeleteVxLanGpeTunnel(ifName string, vxLan *ifs.VxlanLink) error {
swIfIndex, err := h.vxLanGpeAddDelTunnel(0, vxLan, 0, 0)
if err != nil {
return err
}
return h.RemoveInterfaceTag(ifName, swIfIndex)
}