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868
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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 # Stream tests for upstream hash balancer module with datagrams.
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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 use Test::Nginx::Stream qw/ dgram /;
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20
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21 ###############################################################################
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22
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23 select STDERR; $| = 1;
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24 select STDOUT; $| = 1;
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25
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26 my $t = Test::Nginx->new()->has(qw/stream stream_upstream_hash/);
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27
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28 $t->write_file_expand('nginx.conf', <<'EOF');
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29
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30 %%TEST_GLOBALS%%
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31
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32 daemon off;
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33
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34 events {
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35 }
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36
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37 stream {
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38 proxy_responses 1;
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39 proxy_timeout 1s;
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40
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41 upstream hash {
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42 hash $remote_addr;
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43 server 127.0.0.1:8087;
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44 server 127.0.0.1:8088;
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45 }
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46
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47 upstream cons {
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48 hash $remote_addr consistent;
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49 server 127.0.0.1:8087;
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50 server 127.0.0.1:8088;
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51 }
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52
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53 server {
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54 listen 127.0.0.1:8081 udp;
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55 proxy_pass hash;
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56 }
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57
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58 server {
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59 listen 127.0.0.1:8082 udp;
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60 proxy_pass cons;
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61 }
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62 }
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63
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64 EOF
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65
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66 $t->run_daemon(\&udp_daemon, 8087, $t);
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67 $t->run_daemon(\&udp_daemon, 8088, $t);
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68 $t->try_run('no stream udp')->plan(2);
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69
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70 $t->waitforfile($t->testdir . '/8087');
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71 $t->waitforfile($t->testdir . '/8088');
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72
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73 ###############################################################################
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74
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75 is(many('.', 10, peer => '127.0.0.1:8081'), '8088: 10', 'hash');
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76 is(many('.', 10, peer => '127.0.0.1:8082'), '8088: 10', 'hash consistent');
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77
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78 ###############################################################################
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79
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80 sub many {
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81 my ($data, $count, %opts) = @_;
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82 my (%ports, $peer);
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83
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84 $peer = $opts{peer};
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85
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86 for (1 .. $count) {
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87 if (dgram($peer)->io($data) =~ /(\d+)/) {
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88 $ports{$1} = 0 unless defined $ports{$1};
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89 $ports{$1}++;
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90 }
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91 }
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92
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93 return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports;
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94 }
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95
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96 ###############################################################################
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97
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98 sub udp_daemon {
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99 my ($port, $t) = @_;
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100
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101 my $server = IO::Socket::INET->new(
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102 Proto => 'udp',
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103 LocalAddr => '127.0.0.1:' . $port,
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104 Reuse => 1,
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105 )
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106 or die "Can't create listening socket: $!\n";
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107
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108 # signal we are ready
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109
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110 open my $fh, '>', $t->testdir() . '/' . $port;
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111 close $fh;
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112
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113 while (1) {
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114 $server->recv(my $buffer, 65536);
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115 $buffer = $server->sockport();
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116 $server->send($buffer);
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117 }
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118 }
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119
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120 ###############################################################################
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