mirror of https://github.com/vishvananda/netlink
40 lines
1.3 KiB
Go
40 lines
1.3 KiB
Go
// Package netlink provides a simple library for netlink. Netlink is
|
|
// the interface a user-space program in linux uses to communicate with
|
|
// the kernel. It can be used to add and remove interfaces, set up ip
|
|
// addresses and routes, and confiugre ipsec. Netlink communication
|
|
// requires elevated privileges, so in most cases this code needs to
|
|
// be run as root. The low level primitives for netlink are contained
|
|
// in the nl subpackage. This package attempts to provide a high-level
|
|
// interface that is loosly modeled on the iproute2 cli.
|
|
package netlink
|
|
|
|
import (
|
|
"net"
|
|
|
|
"github.com/vishvananda/netlink/nl"
|
|
)
|
|
|
|
const (
|
|
// Family type definitions
|
|
FAMILY_ALL = nl.FAMILY_ALL
|
|
FAMILY_V4 = nl.FAMILY_V4
|
|
FAMILY_V6 = nl.FAMILY_V6
|
|
)
|
|
|
|
// ParseIPNet parses a string in ip/net format and returns a net.IPNet.
|
|
// This is valuable because addresses in netlink are often IPNets and
|
|
// ParseCIDR returns an IPNet with the IP part set to the base IP of the
|
|
// range.
|
|
func ParseIPNet(s string) (*net.IPNet, error) {
|
|
ip, ipNet, err := net.ParseCIDR(s)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &net.IPNet{IP: ip, Mask: ipNet.Mask}, nil
|
|
}
|
|
|
|
// NewIPNet generates an IPNet from an ip address using a netmask of 32.
|
|
func NewIPNet(ip net.IP) *net.IPNet {
|
|
return &net.IPNet{IP: ip, Mask: net.CIDRMask(32, 32)}
|
|
}
|