github.com/cloud-foundations/dominator@v0.0.0-20221004181915-6e4fee580046/cmd/hyper-control/addAddress.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"net"
     6  
     7  	"github.com/Cloud-Foundations/Dominator/lib/errors"
     8  	"github.com/Cloud-Foundations/Dominator/lib/log"
     9  	"github.com/Cloud-Foundations/Dominator/lib/srpc"
    10  	proto "github.com/Cloud-Foundations/Dominator/proto/hypervisor"
    11  )
    12  
    13  func addAddressSubcommand(args []string, logger log.DebugLogger) error {
    14  	var ipAddr string
    15  	if len(args) > 1 {
    16  		ipAddr = args[1]
    17  	}
    18  	err := addAddress(args[0], ipAddr, logger)
    19  	if err != nil {
    20  		return fmt.Errorf("Error adding address: %s", err)
    21  	}
    22  	return nil
    23  }
    24  
    25  func addAddress(macAddr, ipAddr string, logger log.DebugLogger) error {
    26  	address := proto.Address{MacAddress: macAddr}
    27  	if ipAddr != "" {
    28  		address.IpAddress = net.ParseIP(ipAddr)
    29  		address.Shrink()
    30  		if address.MacAddress == "" {
    31  			address.MacAddress = fmt.Sprintf("52:54:%02x:%02x:%02x:%02x",
    32  				address.IpAddress[0], address.IpAddress[1],
    33  				address.IpAddress[2], address.IpAddress[3])
    34  		}
    35  	}
    36  	request := proto.ChangeAddressPoolRequest{
    37  		AddressesToAdd: []proto.Address{address}}
    38  	var reply proto.ChangeAddressPoolResponse
    39  	clientName := fmt.Sprintf("%s:%d", *hypervisorHostname, *hypervisorPortNum)
    40  	client, err := srpc.DialHTTP("tcp", clientName, 0)
    41  	if err != nil {
    42  		return err
    43  	}
    44  	defer client.Close()
    45  	err = client.RequestReply("Hypervisor.ChangeAddressPool", request, &reply)
    46  	if err != nil {
    47  		return err
    48  	}
    49  	return errors.New(reply.Error)
    50  }