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net/dns: fix staticcheck errors.

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Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson 2021-04-11 20:52:05 -07:00
parent 79109f4965
commit cca230cc23
2 changed files with 15 additions and 13 deletions
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2
net/dns/manager_linux.go
View File

@ -9,7 +9,7 @@
func NewOSConfigurator(logf logger.Logf, interfaceName string) OSConfigurator {
switch {
case isResolvedActive():
return newResolvedManager()
return newResolvedManager(logf)
case isNMActive():
return newNMManager(interfaceName)
case isResolvconfActive():

26
net/dns/resolved.go
View File

@ -5,7 +5,6 @@
// +build linux
//lint:file-ignore U1000 refactoring, temporarily unused code.
//lint:file-ignore SA9003 WIP code
package dns
@ -18,6 +17,7 @@
"golang.org/x/sys/unix"
"inet.af/netaddr"
"tailscale.com/net/interfaces"
"tailscale.com/types/logger"
"tailscale.com/util/dnsname"
)
@ -83,10 +83,14 @@ func isResolvedActive() bool {
}
// resolvedManager uses the systemd-resolved DBus API.
type resolvedManager struct{}
type resolvedManager struct {
logf logger.Logf
}
func newResolvedManager() resolvedManager {
return resolvedManager{}
func newResolvedManager(logf logger.Logf) resolvedManager {
return resolvedManager{
logf: logf,
}
}
// Up implements managerImpl.
@ -187,28 +191,26 @@ func (m resolvedManager) SetDNS(config OSConfig) error {
// Disable LLMNR, we don't do multicast.
if call := resolved.CallWithContext(ctx, "org.freedesktop.resolve1.Manager.SetLinkLLMNR", 0, iface.Index, "no"); call.Err != nil {
// TODO: log
m.logf("[v1] failed to disable LLMNR: %v", call.Err)
}
// Disable mdns.
if call := resolved.CallWithContext(ctx, "org.freedesktop.resolve1.Manager.SetLinkMulticastDNS", 0, iface.Index, "no"); call.Err != nil {
// TODO: log
m.logf("[v1] failed to disable mdns: %v", call.Err)
}
// We don't support dnssec consistently right now, force it off to
// avoid partial failures when we split DNS internally.
if call := resolved.CallWithContext(ctx, "org.freedesktop.resolve1.Manager.SetLinkDNSSEC", 0, iface.Index, "no"); call.Err != nil {
// TODO: log
m.logf("[v1] failed to disable DNSSEC: %v", call.Err)
}
if call := resolved.CallWithContext(ctx, "org.freedesktop.resolve1.Manager.SetLinkDNSOverTLS", 0, iface.Index, "no"); call.Err != nil {
// TODO: log
m.logf("[v1] failed to disable DoT: %v", call.Err)
}
err = resolved.CallWithContext(
ctx, "org.freedesktop.resolve1.Manager.FlushCaches", 0).Store()
if err != nil {
// TODO: log
if call := resolved.CallWithContext(ctx, "org.freedesktop.resolve1.Manager.FlushCaches", 0); call.Err != nil {
m.logf("failed to flush resolved DNS cache: %v", call.Err)
}
return nil