tailscale/net/dns/osconfig.go
David Anderson 748670f1e9 net/dns: fix typo in docstring.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-04-02 18:44:02 -07:00

37 lines
1.2 KiB
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// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package dns
// DNSRoutingMode describes the type of per-domain DNS routing that
// the OS is capable of.
type RoutingMode int
const (
// RoutingModeNone means the OS only supports setting a single
// primary set of DNS resolvers.
RoutingModeNone RoutingMode = iota
// RoutingModeSingle means the OS supports a set of
// primary resolvers, as well as one set of additional per-suffix
// resolvers per network interface.
RoutingModeSingle
// RoutingModeMulti means the OS supports a set of primary
// resolvers, as well as an arbitrary overlay of DNS routes.
RoutingModeMulti
)
// An OSConfigurator applies DNS settings to the operating system.
type OSConfigurator interface {
// Set updates the OS's DNS configuration to match cfg.
// If cfg is the zero value, all Tailscale-related DNS
// configuration is removed.
// Set must not be called after Close.
Set(cfg OSConfig) error
// DNSRoutingMode reports the DNS routing capabilities of this OS
// configurator.
RoutingMode() RoutingMode
// Close removes Tailscale-related DNS configuration from the OS.
Close() error
}