134 lines
3.2 KiB
Go
134 lines
3.2 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package network
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import (
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"encoding/json"
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"net"
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"github.com/coreos/coreos-cloudinit/datasource/metadata/packet"
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)
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func ProcessPacketNetconf(config []byte) ([]InterfaceGenerator, error) {
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var netdata packet.NetworkData
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if err := json.Unmarshal(config, &netdata); err != nil {
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return nil, err
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}
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var nameservers []net.IP
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if netdata.DNS != nil {
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nameservers = netdata.DNS
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} else {
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nameservers = append(nameservers, net.ParseIP("8.8.8.8"), net.ParseIP("8.8.4.4"))
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}
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generators, err := parseNetwork(netdata, nameservers)
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if err != nil {
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return nil, err
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}
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return generators, nil
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}
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func parseNetwork(netdata packet.NetworkData, nameservers []net.IP) ([]InterfaceGenerator, error) {
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var interfaces []InterfaceGenerator
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var addresses []net.IPNet
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var routes []route
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for _, netblock := range netdata.Netblocks {
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addresses = append(addresses, net.IPNet{
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IP: netblock.Address,
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Mask: net.IPMask(netblock.Netmask),
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})
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if netblock.Public == false {
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routes = append(routes, route{
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destination: net.IPNet{
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IP: net.IPv4(10, 0, 0, 0),
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Mask: net.IPv4Mask(255, 0, 0, 0),
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},
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gateway: netblock.Gateway,
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})
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} else {
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if netblock.AddressFamily == 4 {
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routes = append(routes, route{
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destination: net.IPNet{
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IP: net.IPv4zero,
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Mask: net.IPMask(net.IPv4zero),
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},
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gateway: netblock.Gateway,
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})
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} else {
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routes = append(routes, route{
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destination: net.IPNet{
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IP: net.IPv6zero,
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Mask: net.IPMask(net.IPv6zero),
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},
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gateway: netblock.Gateway,
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})
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}
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}
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}
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bond := bondInterface{
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logicalInterface: logicalInterface{
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name: "bond0",
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config: configMethodStatic{
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addresses: addresses,
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nameservers: nameservers,
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routes: routes,
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},
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},
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options: map[string]string{
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"Mode": "802.3ad",
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"LACPTransmitRate": "fast",
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"MIIMonitorSec": ".2",
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"UpDelaySec": ".2",
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"DownDelaySec": ".2",
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},
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}
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for _, iface := range netdata.Interfaces {
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if iface.Name != "chassis0" && iface.Name != "ipmi0" {
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bond.slaves = append(bond.slaves, iface.Name)
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if iface.Name == "enp1s0f0" {
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bond.hwaddr, _ = net.ParseMAC(iface.Mac)
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}
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}
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}
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for _, iface := range netdata.Interfaces {
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if iface.Name != "chassis0" && iface.Name != "ipmi0" {
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p := physicalInterface{
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logicalInterface: logicalInterface{
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name: iface.Name,
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config: configMethodStatic{
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nameservers: nameservers,
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},
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children: []networkInterface{&bond},
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},
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}
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if iface.Name == "enp1s0f0" {
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p.configDepth = 20
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}
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interfaces = append(interfaces, &p)
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}
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}
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interfaces = append(interfaces, &bond)
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return interfaces, nil
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}
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