Update

vendor/tailscale.com/net/dns/dns_view.go

@@ -1,4 +1,4 @@
-// Copyright (c) Tailscale Inc & AUTHORS
+// Copyright (c) Tailscale Inc & contributors
 // SPDX-License-Identifier: BSD-3-Clause
 
 // Code generated by tailscale/cmd/viewer; DO NOT EDIT.
@@ -15,6 +15,7 @@ import (
 	"tailscale.com/types/dnstype"
 	"tailscale.com/types/views"
 	"tailscale.com/util/dnsname"
+	"tailscale.com/util/set"
 )
 
 //go:generate go run tailscale.com/cmd/cloner  -clonefunc=true -type=Config
@@ -86,6 +87,11 @@ func (v *ConfigView) UnmarshalJSONFrom(dec *jsontext.Decoder) error {
 	return nil
 }
 
+// AcceptDNS true if [Prefs.CorpDNS] is enabled (or --accept-dns=true).
+// This should be used for error handling and health reporting
+// purposes only.
+func (v ConfigView) AcceptDNS() bool { return v.ж.AcceptDNS }
+
 // DefaultResolvers are the DNS resolvers to use for DNS names
 // which aren't covered by more specific per-domain routes below.
 // If empty, the OS's default resolvers (the ones that predate
@@ -123,16 +129,36 @@ func (v ConfigView) Hosts() views.MapSlice[dnsname.FQDN, netip.Addr] {
 	return views.MapSliceOf(v.ж.Hosts)
 }
 
+// SubdomainHosts is a set of FQDNs from Hosts that should also
+// resolve subdomain queries to the same IPs. For example, if
+// "node.tailnet.ts.net" is in SubdomainHosts, then queries for
+// "anything.node.tailnet.ts.net" will resolve to node's IPs.
+func (v ConfigView) SubdomainHosts() views.Map[dnsname.FQDN, struct{}] {
+	return views.MapOf(v.ж.SubdomainHosts)
+}
+
 // OnlyIPv6, if true, uses the IPv6 service IP (for MagicDNS)
 // instead of the IPv4 version (100.100.100.100).
-func (v ConfigView) OnlyIPv6() bool           { return v.ж.OnlyIPv6 }
-func (v ConfigView) Equal(v2 ConfigView) bool { return v.ж.Equal(v2.ж) }
+func (v ConfigView) OnlyIPv6() bool { return v.ж.OnlyIPv6 }
+
+// MagicDNSHostsUnrouted is whether MagicDNS host records are
+// served on demand via [resolver.MagicDNSHosts] (so are not
+// listed in Hosts) without being covered by any Routes entry;
+// that is, MagicDNS domain routing is off. It preserves the
+// effect the node records had when they were listed in Hosts:
+// hasHostsWithoutSplitDNSRoutes reports true, keeping quad-100
+// in the OS resolver path so the names still resolve.
+func (v ConfigView) MagicDNSHostsUnrouted() bool { return v.ж.MagicDNSHostsUnrouted }
+func (v ConfigView) Equal(v2 ConfigView) bool    { return v.ж.Equal(v2.ж) }
 
 // A compilation failure here means this code must be regenerated, with the command at the top of this file.
 var _ConfigViewNeedsRegeneration = Config(struct {
-	DefaultResolvers []*dnstype.Resolver
-	Routes           map[dnsname.FQDN][]*dnstype.Resolver
-	SearchDomains    []dnsname.FQDN
-	Hosts            map[dnsname.FQDN][]netip.Addr
-	OnlyIPv6         bool
+	AcceptDNS             bool
+	DefaultResolvers      []*dnstype.Resolver
+	Routes                map[dnsname.FQDN][]*dnstype.Resolver
+	SearchDomains         []dnsname.FQDN
+	Hosts                 map[dnsname.FQDN][]netip.Addr
+	SubdomainHosts        set.Set[dnsname.FQDN]
+	OnlyIPv6              bool
+	MagicDNSHostsUnrouted bool
 }{})