go.ligato.io/vpp-agent/v3@v3.5.0/plugins/vpp/ifplugin/vppcalls/vpp2202/mac_vppcalls.go (about)

     1  //  Copyright (c) 2022 Cisco and/or its affiliates.
     2  //
     3  //  Licensed under the Apache License, Version 2.0 (the "License");
     4  //  you may not use this file except in compliance with the License.
     5  //  You may obtain a copy of the License at:
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //  Unless required by applicable law or agreed to in writing, software
    10  //  distributed under the License is distributed on an "AS IS" BASIS,
    11  //  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //  See the License for the specific language governing permissions and
    13  //  limitations under the License.
    14  
    15  package vpp2202
    16  
    17  import (
    18  	"net"
    19  
    20  	"github.com/go-errors/errors"
    21  
    22  	vpp_ifs "go.ligato.io/vpp-agent/v3/plugins/vpp/binapi/vpp2202/interface"
    23  	"go.ligato.io/vpp-agent/v3/plugins/vpp/binapi/vpp2202/interface_types"
    24  )
    25  
    26  func (h *InterfaceVppHandler) SetInterfaceMac(ifIdx uint32, macAddress string) error {
    27  	mac, err := ParseMAC(macAddress)
    28  	if err != nil {
    29  		return err
    30  	}
    31  	req := &vpp_ifs.SwInterfaceSetMacAddress{
    32  		SwIfIndex:  interface_types.InterfaceIndex(ifIdx),
    33  		MacAddress: mac,
    34  	}
    35  	reply := &vpp_ifs.SwInterfaceSetMacAddressReply{}
    36  
    37  	if err := h.callsChannel.SendRequest(req).ReceiveReply(reply); err != nil {
    38  		return err
    39  	}
    40  
    41  	return nil
    42  }
    43  
    44  // parse mac string to uint8 array with len=6
    45  func ParseMAC(mac string) (parsedMac [6]uint8, err error) {
    46  	var hw net.HardwareAddr
    47  	if hw, err = net.ParseMAC(mac); err != nil {
    48  		err = errors.Errorf("invalid mac address %s: %v", mac, err)
    49  		return
    50  	}
    51  	copy(parsedMac[:], hw[:])
    52  	return
    53  }