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annotate http_resolver_cleanup.t @ 1098:bb1974010d0a

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Tests: resolver cleanup tests.
author Sergey Kandaurov <pluknet@nginx.com>
date Mon, 19 Dec 2016 13:46:55 +0300
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children 78cb8e66b6bc
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1098
bb1974010d0a Tests: resolver cleanup tests.
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for http resolver, worker process termination.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($FindBin::Bin); }
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16
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17 use lib 'lib';
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18 use Test::Nginx;
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19
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20 ###############################################################################
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21
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22 select STDERR; $| = 1;
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23 select STDOUT; $| = 1;
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24
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25 my $t = Test::Nginx->new()->has(qw/http proxy/)->plan(1);
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26
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27 $t->write_file_expand('nginx.conf', <<'EOF');
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28
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29 %%TEST_GLOBALS%%
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30
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31 daemon off;
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32
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33 events {
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34 }
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35
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36 http {
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37 %%TEST_GLOBALS_HTTP%%
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38
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39 server {
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40 listen 127.0.0.1:8080;
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41 server_name localhost;
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42
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43 location / {
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44 resolver 127.0.0.1:%%PORT_8081_UDP%%;
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45 proxy_pass http://example.net/$args;
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46 }
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47
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48 location /pid {
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49 add_header X-Pid $pid always;
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50 }
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51 }
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52 }
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53
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54 EOF
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55
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56 $t->run_daemon(\&dns_daemon, $t);
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57 $t->run()->waitforfile($t->testdir . '/' . port(8081));
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58
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59 ###############################################################################
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60
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61 my ($s);
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62
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63 TODO: {
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64 todo_skip 'use-after-free', 1 unless $ENV{TEST_NGINX_UNSAFE}
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65 or $t->has_version('1.11.8');
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66
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67 # truncated UDP response, no response over TCP
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68
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69 $s = http_get('/', start => 1);
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70
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71 pass('request');
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72
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73 sleep 1;
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74
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75 }
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76
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77 # use-after-free in worker on fast shutdown
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78
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79 http_get('/pid') =~ qr/X-Pid: (\d+)/;
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80 kill 'TERM', $1;
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81
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82 ###############################################################################
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83
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84 sub dns_daemon {
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85 my ($t) = @_;
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86 my ($data);
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87
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88 my $socket = IO::Socket::INET->new(
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89 LocalAddr => '127.0.0.1',
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90 LocalPort => port(8081),
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91 Proto => 'udp',
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92 )
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93 or die "Can't create UDP socket: $!\n";
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94
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95 # signal we are ready
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96
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97 open my $fh, '>', $t->testdir() . '/' . port(8081);
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98 close $fh;
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99
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100 while (1) {
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101 $socket->recv($data, 65536);
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102 # truncation bit set
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103 $data |= pack("n2", 0, 0x8380);
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104 $socket->send($data);
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105 }
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106 }
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107
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108 ###############################################################################