Mercurial > hg > nginx-tests
annotate stream_upstream_least_conn.t @ 1571:1b4ceab9cb1c
Tests: fixed ssl_certificate.t with LibreSSL client.
Net::SSLeay::connect() that manages TLS handshake could return unexpected
error when receiving server alert, as seen in server certificate tests if
it could not been selected. Typically, it returns the expected error -1,
but with certain libssl implementations it can be 0, as explained below.
The error is propagated from libssl's SSL_connect(), which is usually -1.
In modern OpenSSL versions, it is the default error code used in the state
machine returned when something went wrong with parsing TLS message header.
In versions up to OpenSSL 1.0.2, with SSLv23_method() used by default, -1
is the only error code in the ssl_connect() method implementation which is
used as well if receiving alert while parsing ServerHello. BoringSSL also
seems to return -1. But it is not so with LibreSSL that returns zero.
Previously, tests failed with client built with LibreSSL with SSLv3 removed.
Here, the error is propagated directly from ssl_read_bytes() method, which
is always implemented as ssl3_read_bytes() in all TLS methods. It could be
also seen with OpenSSL up to 1.0.2 with non-default methods explicitly set.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Fri, 29 May 2020 23:10:20 +0300 |
parents | 3fc6817cd84a |
children | f3ba4c74de31 |
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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 least_conn balancer module. |
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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 use IO::Select; |
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16 |
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17 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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18 |
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19 use lib 'lib'; |
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20 use Test::Nginx; |
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21 use Test::Nginx::Stream qw/ stream /; |
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22 |
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23 ############################################################################### |
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24 |
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25 select STDERR; $| = 1; |
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26 select STDOUT; $| = 1; |
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27 |
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28 my $t = Test::Nginx->new()->has(qw/stream stream_upstream_least_conn/)->plan(2) |
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29 ->write_file_expand('nginx.conf', <<'EOF'); |
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30 |
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31 %%TEST_GLOBALS%% |
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32 |
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33 daemon off; |
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34 |
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35 events { |
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36 } |
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37 |
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38 stream { |
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39 upstream u { |
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40 least_conn; |
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41 server 127.0.0.1:8081; |
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42 server 127.0.0.1:8082; |
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43 } |
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44 |
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45 server { |
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46 listen 127.0.0.1:8080; |
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47 proxy_pass u; |
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48 } |
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49 } |
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50 |
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51 EOF |
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52 |
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53 $t->run_daemon(\&stream_daemon, port(8081)); |
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54 $t->run_daemon(\&stream_daemon, port(8082)); |
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55 $t->run(); |
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56 |
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57 $t->waitforsocket('127.0.0.1:' . port(8081)); |
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58 $t->waitforsocket('127.0.0.1:' . port(8082)); |
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59 |
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60 ############################################################################### |
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61 |
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62 my @ports = my ($port1, $port2) = (port(8081), port(8082)); |
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63 |
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64 is(many(10), "$port1: 5, $port2: 5", 'balanced'); |
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65 |
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66 my @sockets; |
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67 for (1 .. 2) { |
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68 my $s = stream('127.0.0.1:' . port(8080)); |
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69 $s->write('w'); |
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70 push @sockets, $s; |
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71 } |
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72 |
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73 select undef, undef, undef, 0.2; |
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74 |
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75 is(many(10), "$port2: 10", 'least_conn'); |
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76 |
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77 ############################################################################### |
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78 |
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79 sub many { |
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80 my ($count) = @_; |
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81 my (%ports); |
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82 |
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83 for (1 .. $count) { |
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84 if (stream('127.0.0.1:' . port(8080))->io('.') =~ /(\d+)/) { |
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85 $ports{$1} = 0 unless defined $ports{$1}; |
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86 $ports{$1}++; |
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87 } |
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88 } |
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89 |
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90 my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; |
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91 return join ', ', map { $_ . ": " . $ports{$_} } @keys; |
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92 } |
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93 |
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94 ############################################################################### |
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95 |
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96 sub stream_daemon { |
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97 my ($port) = @_; |
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98 |
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99 my $server = IO::Socket::INET->new( |
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100 Proto => 'tcp', |
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101 LocalAddr => '127.0.0.1', |
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102 LocalPort => $port, |
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103 Listen => 5, |
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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 my $sel = IO::Select->new($server); |
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109 |
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110 local $SIG{PIPE} = 'IGNORE'; |
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111 |
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112 while (my @ready = $sel->can_read) { |
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113 foreach my $fh (@ready) { |
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114 if ($server == $fh) { |
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115 my $new = $fh->accept; |
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116 $new->autoflush(1); |
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117 $sel->add($new); |
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118 |
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119 } elsif (stream_handle_client($fh)) { |
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120 $sel->remove($fh); |
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121 $fh->close; |
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122 } |
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123 } |
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124 } |
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125 } |
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126 |
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127 sub stream_handle_client { |
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128 my ($client) = @_; |
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129 |
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130 log2c("(new connection $client)"); |
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131 |
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132 $client->sysread(my $buffer, 65536) or return 1; |
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133 |
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134 log2i("$client $buffer"); |
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135 |
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136 my $port = $client->sockport(); |
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137 |
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138 if ($buffer =~ /w/ && $port == port(8081)) { |
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139 Test::Nginx::log_core('||', "$port: sleep(2.5)"); |
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140 select undef, undef, undef, 2.5; |
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141 } |
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142 |
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143 $buffer = $port; |
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144 |
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145 log2o("$client $buffer"); |
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146 |
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147 $client->syswrite($buffer); |
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148 |
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149 return 1; |
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150 } |
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151 |
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152 sub log2i { Test::Nginx::log_core('|| <<', @_); } |
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153 sub log2o { Test::Nginx::log_core('|| >>', @_); } |
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154 sub log2c { Test::Nginx::log_core('||', @_); } |
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155 |
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156 ############################################################################### |