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38 lines
1.4 KiB
Go
38 lines
1.4 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package dns
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import (
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"inet.af/netaddr"
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)
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// Config is a DNS configuration.
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type Config struct {
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// DefaultResolvers are the DNS resolvers to use for DNS names
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// which aren't covered by more specific per-domain routes below.
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// If empty, the OS's default resolvers (the ones that predate
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// Tailscale altering the configuration) are used.
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DefaultResolvers []netaddr.IPPort
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// Routes maps a DNS suffix to the resolvers that should be used
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// for queries that fall within that suffix.
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// If a query doesn't match any entry in Routes, the
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// DefaultResolvers are used.
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Routes map[string][]netaddr.IPPort
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// SearchDomains are DNS suffixes to try when expanding
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// single-label queries.
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SearchDomains []string
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// Hosts maps DNS FQDNs to their IPs, which can be a mix of IPv4
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// and IPv6.
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// Queries matching entries in Hosts are resolved locally without
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// recursing off-machine.
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Hosts map[string][]netaddr.IP
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// AuthoritativeSuffixes is a list of fully-qualified DNS suffixes
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// for which the in-process Tailscale resolver is authoritative.
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// Queries for names within AuthoritativeSuffixes can only be
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// fulfilled by entries in Hosts. Queries with no match in Hosts
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// return NXDOMAIN.
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AuthoritativeSuffixes []string
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}
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