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Pull request: AG-31863-dnsforward-tests
Merge in DNS/adguard-home from AG-31863-dnsforward-tests to master
Squashed commit of the following:
commit cbdad627c00b30a17af843d98236fe9758b7ddee
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Wed Apr 24 15:00:15 2024 +0200
dnsforward: imp tests
commit b71304a925c0ea49440e493dc65accadc6e47c5f
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Wed Apr 24 12:53:51 2024 +0200
dnsforward: imp tests
commit 3c42fcaa4906fce48b179a1c523e33839b2a8eee
Merge: 50888df66 60f48e2d0
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Wed Apr 24 08:41:19 2024 +0200
Merge remote-tracking branch 'origin/master' into AG-31863-dnsforward-tests
commit 50888df6616085872d956c42898ab0eff6c5f5d4
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Wed Apr 24 08:39:37 2024 +0200
dnsforward: imp code
commit dcd5e41f13d698ce7a6beb0a601910ae03ff4407
Merge: af2507b2a f85d04831
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Tue Apr 23 10:02:45 2024 +0200
Merge remote-tracking branch 'origin/master' into AG-31863-dnsforward-tests
commit af2507b2ace94d0c39803c2d21273cf11a00843e
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Tue Apr 23 10:01:30 2024 +0200
dnsforward: imp tests
commit 67fc9d3d9c6210e600ca3b26abf7ebfffca5e770
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Mon Apr 22 10:37:45 2024 +0200
dnsforward: imp tests
commit e7f7df2b688be525ee7582a4e161a4837124e74b
Merge: c610a6c88 762ef4a6d
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Mon Apr 22 09:51:04 2024 +0200
Merge remote-tracking branch 'origin/master' into AG-31863-dnsforward-tests
commit c610a6c886554f6a2677c993c1c7aae4ca99228e
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Fri Apr 19 12:28:49 2024 +0200
dnsforward: imp tests
commit ca252e8fa28b70f303068775cc682682dd41e77c
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Fri Apr 19 11:58:49 2024 +0200
dnsforward: imp tests
commit 9d4de18934b1c5b0ae2edbec98bc84d5e0b23126
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Fri Apr 19 11:38:15 2024 +0200
dnsforward: imp tests
commit a349374d90f48724ddca637e3d547f90026ff72a
Merge: 2243770b3 48c6242a7
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Wed Apr 17 11:02:56 2024 +0200
Merge remote-tracking branch 'origin/master' into AG-31863-dnsforward-tests
commit 2243770b3a54a55eaf4fd48328a8e40a7b8a8349
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Tue Apr 16 10:56:40 2024 +0200
dnsforward: imp tests
commit 4c4b565eec0ce8839b94cbaa0b29be6355e3c2e4
Merge: f1e4b72a8 201ac73cf
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Tue Apr 16 10:53:48 2024 +0200
Merge remote-tracking branch 'origin/master' into AG-31863-dnsforward-tests
commit f1e4b72a8aa4fd0bbc738d959ca9be2f19fbc338
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Mon Apr 15 12:36:21 2024 +0200
dnsforward: imp tests
commit 6ee6cc9519ddd31f0e78c7521ec612404f85e4b5
Author: Dimitry Kolyshev <dkolyshev@adguard.com>
Date: Sun Apr 14 13:55:09 2024 +0200
dnsforward: add test
This commit is contained in:
Dimitry Kolyshev
parent
60f48e2d00
commit
0cff3dbcda
2 changed files with 300 additions and 1 deletions
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@ -18,7 +18,7 @@ var _ proxy.BeforeRequestHandler = (*Server)(nil)
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// including logs. It performs access checks and puts the client ID, if there
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// is one, into the server's cache.
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//
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// TODO(e.burkov): Write tests.
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// TODO(d.kolyshev): Extract to separate package.
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func (s *Server) HandleBefore(
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_ *proxy.Proxy,
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pctx *proxy.DNSContext,
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299
internal/dnsforward/beforerequest_internal_test.go
Normal file
299
internal/dnsforward/beforerequest_internal_test.go
Normal file
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@ -0,0 +1,299 @@
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package dnsforward
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import (
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"crypto/tls"
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"net"
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"testing"
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"time"
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"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
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"github.com/AdguardTeam/AdGuardHome/internal/filtering"
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"github.com/AdguardTeam/dnsproxy/proxy"
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"github.com/miekg/dns"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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const (
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blockedHost = "blockedhost.org"
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testFQDN = "example.org."
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dnsClientTimeout = 200 * time.Millisecond
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)
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func TestServer_HandleBefore_tls(t *testing.T) {
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t.Parallel()
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const clientID = "client-1"
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testCases := []struct {
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clientSrvName string
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name string
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host string
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allowedClients []string
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disallowedClients []string
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blockedHosts []string
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wantRCode int
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}{{
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clientSrvName: tlsServerName,
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name: "allow_all",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantRCode: dns.RcodeSuccess,
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}, {
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clientSrvName: "%" + "." + tlsServerName,
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name: "invalid_client_id",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantRCode: dns.RcodeServerFailure,
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}, {
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clientSrvName: clientID + "." + tlsServerName,
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name: "allowed_client_allowed",
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host: testFQDN,
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allowedClients: []string{clientID},
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantRCode: dns.RcodeSuccess,
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}, {
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clientSrvName: "client-2." + tlsServerName,
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name: "allowed_client_rejected",
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host: testFQDN,
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allowedClients: []string{clientID},
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantRCode: dns.RcodeRefused,
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}, {
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clientSrvName: tlsServerName,
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name: "disallowed_client_allowed",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{clientID},
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blockedHosts: []string{},
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wantRCode: dns.RcodeSuccess,
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}, {
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clientSrvName: clientID + "." + tlsServerName,
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name: "disallowed_client_rejected",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{clientID},
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blockedHosts: []string{},
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wantRCode: dns.RcodeRefused,
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}, {
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clientSrvName: tlsServerName,
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name: "blocked_hosts_allowed",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{blockedHost},
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wantRCode: dns.RcodeSuccess,
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}, {
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clientSrvName: tlsServerName,
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name: "blocked_hosts_rejected",
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host: dns.Fqdn(blockedHost),
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{blockedHost},
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wantRCode: dns.RcodeRefused,
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}}
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localAns := []dns.RR{&dns.A{
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Hdr: dns.RR_Header{
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Name: testFQDN,
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Rrtype: dns.TypeA,
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Class: dns.ClassINET,
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Ttl: 3600,
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Rdlength: 4,
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},
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A: net.IP{1, 2, 3, 4},
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}}
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localUpsHdlr := dns.HandlerFunc(func(w dns.ResponseWriter, req *dns.Msg) {
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resp := (&dns.Msg{}).SetReply(req)
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resp.Answer = localAns
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require.NoError(t, w.WriteMsg(resp))
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})
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localUpsAddr := aghtest.StartLocalhostUpstream(t, localUpsHdlr).String()
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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s, _ := createTestTLS(t, TLSConfig{
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TLSListenAddrs: []*net.TCPAddr{{}},
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ServerName: tlsServerName,
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})
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s.conf.UpstreamDNS = []string{localUpsAddr}
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s.conf.AllowedClients = tc.allowedClients
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s.conf.DisallowedClients = tc.disallowedClients
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s.conf.BlockedHosts = tc.blockedHosts
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err := s.Prepare(&s.conf)
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require.NoError(t, err)
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startDeferStop(t, s)
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tlsConfig := &tls.Config{
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InsecureSkipVerify: true,
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ServerName: tc.clientSrvName,
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}
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client := &dns.Client{
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Net: "tcp-tls",
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TLSConfig: tlsConfig,
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Timeout: dnsClientTimeout,
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}
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req := createTestMessage(tc.host)
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addr := s.dnsProxy.Addr(proxy.ProtoTLS).String()
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reply, _, err := client.Exchange(req, addr)
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require.NoError(t, err)
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assert.Equal(t, tc.wantRCode, reply.Rcode)
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if tc.wantRCode == dns.RcodeSuccess {
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assert.Equal(t, localAns, reply.Answer)
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} else {
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assert.Empty(t, reply.Answer)
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}
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})
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}
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}
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func TestServer_HandleBefore_udp(t *testing.T) {
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t.Parallel()
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const (
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clientIPv4 = "127.0.0.1"
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clientIPv6 = "::1"
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)
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clientIPs := []string{clientIPv4, clientIPv6}
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testCases := []struct {
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name string
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host string
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allowedClients []string
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disallowedClients []string
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blockedHosts []string
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wantTimeout bool
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}{{
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name: "allow_all",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantTimeout: false,
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}, {
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name: "allowed_client_allowed",
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host: testFQDN,
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allowedClients: clientIPs,
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantTimeout: false,
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}, {
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name: "allowed_client_rejected",
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host: testFQDN,
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allowedClients: []string{"1:2:3::4"},
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disallowedClients: []string{},
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blockedHosts: []string{},
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wantTimeout: true,
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}, {
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name: "disallowed_client_allowed",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{"1:2:3::4"},
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blockedHosts: []string{},
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wantTimeout: false,
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}, {
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name: "disallowed_client_rejected",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: clientIPs,
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blockedHosts: []string{},
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wantTimeout: true,
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}, {
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name: "blocked_hosts_allowed",
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host: testFQDN,
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{blockedHost},
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wantTimeout: false,
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}, {
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name: "blocked_hosts_rejected",
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host: dns.Fqdn(blockedHost),
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allowedClients: []string{},
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disallowedClients: []string{},
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blockedHosts: []string{blockedHost},
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wantTimeout: true,
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}}
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localAns := []dns.RR{&dns.A{
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Hdr: dns.RR_Header{
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Name: testFQDN,
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Rrtype: dns.TypeA,
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Class: dns.ClassINET,
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Ttl: 3600,
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Rdlength: 4,
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},
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A: net.IP{1, 2, 3, 4},
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}}
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localUpsHdlr := dns.HandlerFunc(func(w dns.ResponseWriter, req *dns.Msg) {
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resp := (&dns.Msg{}).SetReply(req)
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resp.Answer = localAns
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require.NoError(t, w.WriteMsg(resp))
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})
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localUpsAddr := aghtest.StartLocalhostUpstream(t, localUpsHdlr).String()
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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s := createTestServer(t, &filtering.Config{
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BlockingMode: filtering.BlockingModeDefault,
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}, ServerConfig{
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UDPListenAddrs: []*net.UDPAddr{{}},
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TCPListenAddrs: []*net.TCPAddr{{}},
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Config: Config{
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AllowedClients: tc.allowedClients,
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DisallowedClients: tc.disallowedClients,
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BlockedHosts: tc.blockedHosts,
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UpstreamDNS: []string{localUpsAddr},
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UpstreamMode: UpstreamModeLoadBalance,
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EDNSClientSubnet: &EDNSClientSubnet{Enabled: false},
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},
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ServePlainDNS: true,
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})
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startDeferStop(t, s)
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client := &dns.Client{
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Net: "udp",
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Timeout: dnsClientTimeout,
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}
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req := createTestMessage(tc.host)
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addr := s.dnsProxy.Addr(proxy.ProtoUDP).String()
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reply, _, err := client.Exchange(req, addr)
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if tc.wantTimeout {
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wantErr := &net.OpError{}
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require.ErrorAs(t, err, &wantErr)
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assert.True(t, wantErr.Timeout())
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assert.Nil(t, reply)
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} else {
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require.NoError(t, err)
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require.NotNil(t, reply)
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assert.Equal(t, dns.RcodeSuccess, reply.Rcode)
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assert.Equal(t, localAns, reply.Answer)
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}
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})
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}
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}
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