/usr/share/gocode/src/github.com/docker/libnetwork/cmd/ovrouter/ovrouter.go is in golang-github-docker-libnetwork-dev 0.8.0-dev.2+git20170202.599.45b4086-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | package main
import (
"fmt"
"net"
"os"
"os/signal"
"github.com/docker/docker/pkg/plugingetter"
"github.com/docker/docker/pkg/reexec"
"github.com/docker/libnetwork/driverapi"
"github.com/docker/libnetwork/drivers/overlay"
"github.com/docker/libnetwork/netlabel"
"github.com/docker/libnetwork/types"
"github.com/vishvananda/netlink"
)
type router struct {
d driverapi.Driver
}
type endpoint struct {
addr *net.IPNet
mac net.HardwareAddr
name string
}
func (r *router) GetPluginGetter() plugingetter.PluginGetter {
return nil
}
func (r *router) RegisterDriver(name string, driver driverapi.Driver, c driverapi.Capability) error {
r.d = driver
return nil
}
func (ep *endpoint) Interface() driverapi.InterfaceInfo {
return nil
}
func (ep *endpoint) SetMacAddress(mac net.HardwareAddr) error {
if ep.mac != nil {
return types.ForbiddenErrorf("endpoint interface MAC address present (%s). Cannot be modified with %s.", ep.mac, mac)
}
if mac == nil {
return types.BadRequestErrorf("tried to set nil MAC address to endpoint interface")
}
ep.mac = types.GetMacCopy(mac)
return nil
}
func (ep *endpoint) SetIPAddress(address *net.IPNet) error {
if address.IP == nil {
return types.BadRequestErrorf("tried to set nil IP address to endpoint interface")
}
if address.IP.To4() == nil {
return types.NotImplementedErrorf("do not support ipv6 yet")
}
if ep.addr != nil {
return types.ForbiddenErrorf("endpoint interface IP present (%s). Cannot be modified with %s.", ep.addr, address)
}
ep.addr = types.GetIPNetCopy(address)
return nil
}
func (ep *endpoint) MacAddress() net.HardwareAddr {
return types.GetMacCopy(ep.mac)
}
func (ep *endpoint) Address() *net.IPNet {
return types.GetIPNetCopy(ep.addr)
}
func (ep *endpoint) AddressIPv6() *net.IPNet {
return nil
}
func (ep *endpoint) InterfaceName() driverapi.InterfaceNameInfo {
return ep
}
func (ep *endpoint) SetNames(srcName, dstPrefix string) error {
ep.name = srcName
return nil
}
func (ep *endpoint) SetGateway(net.IP) error {
return nil
}
func (ep *endpoint) SetGatewayIPv6(net.IP) error {
return nil
}
func (ep *endpoint) AddStaticRoute(destination *net.IPNet, routeType int,
nextHop net.IP) error {
return nil
}
func (ep *endpoint) AddTableEntry(tableName string, key string, value []byte) error {
return nil
}
func (ep *endpoint) DisableGatewayService() {}
func main() {
if reexec.Init() {
return
}
opt := make(map[string]interface{})
if len(os.Args) > 1 {
opt[netlabel.OverlayBindInterface] = os.Args[1]
}
if len(os.Args) > 2 {
opt[netlabel.OverlayNeighborIP] = os.Args[2]
}
if len(os.Args) > 3 {
opt[netlabel.GlobalKVProvider] = os.Args[3]
}
if len(os.Args) > 4 {
opt[netlabel.GlobalKVProviderURL] = os.Args[4]
}
r := &router{}
if err := overlay.Init(r, opt); err != nil {
fmt.Printf("Failed to initialize overlay driver: %v\n", err)
os.Exit(1)
}
if err := r.d.CreateNetwork("testnetwork",
map[string]interface{}{}, nil, nil, nil); err != nil {
fmt.Printf("Failed to create network in the driver: %v\n", err)
os.Exit(1)
}
ep := &endpoint{}
if err := r.d.CreateEndpoint("testnetwork", "testep",
ep, map[string]interface{}{}); err != nil {
fmt.Printf("Failed to create endpoint in the driver: %v\n", err)
os.Exit(1)
}
if err := r.d.Join("testnetwork", "testep",
"", ep, map[string]interface{}{}); err != nil {
fmt.Printf("Failed to join an endpoint in the driver: %v\n", err)
os.Exit(1)
}
link, err := netlink.LinkByName(ep.name)
if err != nil {
fmt.Printf("Failed to find the container interface with name %s: %v\n",
ep.name, err)
os.Exit(1)
}
ipAddr := &netlink.Addr{IPNet: ep.addr, Label: ""}
if err := netlink.AddrAdd(link, ipAddr); err != nil {
fmt.Printf("Failed to add address to the interface: %v\n", err)
os.Exit(1)
}
sigCh := make(chan os.Signal, 1)
signal.Notify(sigCh, os.Interrupt, os.Kill)
for {
select {
case <-sigCh:
r.d.Leave("testnetwork", "testep")
overlay.Fini(r.d)
os.Exit(0)
}
}
}
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