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https://github.com/coredhcp/coredhcp.git
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9afdd65e04
These plugins don't support IPv6. With the new explicit plugin registration, completely omitting the setup function for ipv6 in that case is now possible. Signed-off-by: Anatole Denis <anatole@unverle.fr>
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// Copyright 2018-present the CoreDHCP Authors. All rights reserved
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// This source code is licensed under the MIT license found in the
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// LICENSE file in the root directory of this source tree.
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package router
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import (
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"errors"
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"net"
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"github.com/coredhcp/coredhcp/handler"
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"github.com/coredhcp/coredhcp/logger"
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"github.com/coredhcp/coredhcp/plugins"
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"github.com/insomniacslk/dhcp/dhcpv4"
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)
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var log = logger.GetLogger("plugins/router")
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// Plugin wraps plugin registration information
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var Plugin = plugins.Plugin{
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Name: "router",
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Setup4: setup4,
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}
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var (
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routers []net.IP
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)
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func setup4(args ...string) (handler.Handler4, error) {
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log.Printf("Loaded plugin for DHCPv4.")
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if len(args) < 1 {
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return nil, errors.New("need at least one router IP address")
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}
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for _, arg := range args {
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router := net.ParseIP(arg)
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if router.To4() == nil {
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return Handler4, errors.New("expected an router IP address, got: " + arg)
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}
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routers = append(routers, router)
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}
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log.Infof("loaded %d router IP addresses.", len(routers))
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return Handler4, nil
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}
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//Handler4 handles DHCPv4 packets for the router plugin
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func Handler4(req, resp *dhcpv4.DHCPv4) (*dhcpv4.DHCPv4, bool) {
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resp.Options.Update(dhcpv4.OptRouter(routers...))
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return resp, false
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}
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