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comparison 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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1097:a5f9c878c3ab 1098:bb1974010d0a
1 #!/usr/bin/perl
2
3 # (C) Sergey Kandaurov
4 # (C) Nginx, Inc.
5
6 # Tests for http resolver, worker process termination.
7
8 ###############################################################################
9
10 use warnings;
11 use strict;
12
13 use Test::More;
14
15 BEGIN { use FindBin; chdir($FindBin::Bin); }
16
17 use lib 'lib';
18 use Test::Nginx;
19
20 ###############################################################################
21
22 select STDERR; $| = 1;
23 select STDOUT; $| = 1;
24
25 my $t = Test::Nginx->new()->has(qw/http proxy/)->plan(1);
26
27 $t->write_file_expand('nginx.conf', <<'EOF');
28
29 %%TEST_GLOBALS%%
30
31 daemon off;
32
33 events {
34 }
35
36 http {
37 %%TEST_GLOBALS_HTTP%%
38
39 server {
40 listen 127.0.0.1:8080;
41 server_name localhost;
42
43 location / {
44 resolver 127.0.0.1:%%PORT_8081_UDP%%;
45 proxy_pass http://example.net/$args;
46 }
47
48 location /pid {
49 add_header X-Pid $pid always;
50 }
51 }
52 }
53
54 EOF
55
56 $t->run_daemon(\&dns_daemon, $t);
57 $t->run()->waitforfile($t->testdir . '/' . port(8081));
58
59 ###############################################################################
60
61 my ($s);
62
63 TODO: {
64 todo_skip 'use-after-free', 1 unless $ENV{TEST_NGINX_UNSAFE}
65 or $t->has_version('1.11.8');
66
67 # truncated UDP response, no response over TCP
68
69 $s = http_get('/', start => 1);
70
71 pass('request');
72
73 sleep 1;
74
75 }
76
77 # use-after-free in worker on fast shutdown
78
79 http_get('/pid') =~ qr/X-Pid: (\d+)/;
80 kill 'TERM', $1;
81
82 ###############################################################################
83
84 sub dns_daemon {
85 my ($t) = @_;
86 my ($data);
87
88 my $socket = IO::Socket::INET->new(
89 LocalAddr => '127.0.0.1',
90 LocalPort => port(8081),
91 Proto => 'udp',
92 )
93 or die "Can't create UDP socket: $!\n";
94
95 # signal we are ready
96
97 open my $fh, '>', $t->testdir() . '/' . port(8081);
98 close $fh;
99
100 while (1) {
101 $socket->recv($data, 65536);
102 # truncation bit set
103 $data |= pack("n2", 0, 0x8380);
104 $socket->send($data);
105 }
106 }
107
108 ###############################################################################