/usr/share/gocode/src/github.com/docker/libnetwork/network_windows.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.
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package libnetwork
import (
"runtime"
"time"
"github.com/Microsoft/hcsshim"
"github.com/Sirupsen/logrus"
"github.com/docker/libnetwork/drivers/windows"
"github.com/docker/libnetwork/ipamapi"
"github.com/docker/libnetwork/ipams/windowsipam"
)
func executeInCompartment(compartmentID uint32, x func()) {
runtime.LockOSThread()
if err := hcsshim.SetCurrentThreadCompartmentId(compartmentID); err != nil {
logrus.Error(err)
}
defer func() {
hcsshim.SetCurrentThreadCompartmentId(0)
runtime.UnlockOSThread()
}()
x()
}
func (n *network) startResolver() {
n.resolverOnce.Do(func() {
logrus.Debugf("Launching DNS server for network", n.Name())
options := n.Info().DriverOptions()
hnsid := options[windows.HNSID]
if hnsid == "" {
return
}
hnsresponse, err := hcsshim.HNSNetworkRequest("GET", hnsid, "")
if err != nil {
logrus.Errorf("Resolver Setup/Start failed for container %s, %q", n.Name(), err)
return
}
for _, subnet := range hnsresponse.Subnets {
if subnet.GatewayAddress != "" {
for i := 0; i < 3; i++ {
resolver := NewResolver(subnet.GatewayAddress, false, "", n)
logrus.Debugf("Binding a resolver on network %s gateway %s", n.Name(), subnet.GatewayAddress)
executeInCompartment(hnsresponse.DNSServerCompartment, resolver.SetupFunc(53))
if err = resolver.Start(); err != nil {
logrus.Errorf("Resolver Setup/Start failed for container %s, %q", n.Name(), err)
time.Sleep(1 * time.Second)
} else {
logrus.Debugf("Resolver bound successfully for network %s", n.Name())
n.resolver = append(n.resolver, resolver)
break
}
}
}
}
})
}
func defaultIpamForNetworkType(networkType string) string {
if windows.IsBuiltinLocalDriver(networkType) {
return windowsipam.DefaultIPAM
}
return ipamapi.DefaultIPAM
}
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