Mercurial > hg > nginx-tests
view stream_udp_proxy_requests.t @ 1825:3629eda94c1b
Tests: handling of EWOULDBLOCK from sysread() with IO::Socket::SSL.
With IO::Socket::SSL, when select() reports that the socket is readable,
reading from it might still fail with EWOULDBLOCK, since no application
data is available in the socket. In particular, this might happen with
TLSv1.3 when a session ticket is received after the handshake. Fix is
to explicitly check for EWOULDBLOCK errors.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 21 Mar 2023 02:57:39 +0300 |
parents | f3ba4c74de31 |
children |
line wrap: on
line source
#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for stream proxy module, the proxy_requests directive. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ dgram /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream udp/)->plan(26) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% proxy_timeout 2100ms; log_format status $status; server { listen 127.0.0.1:%%PORT_8980_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8990_UDP%%; proxy_requests 0; } server { listen 127.0.0.1:%%PORT_8981_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8990_UDP%%; proxy_requests 1; } server { listen 127.0.0.1:%%PORT_8982_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8990_UDP%%; proxy_requests 2; } server { listen 127.0.0.1:%%PORT_8983_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8990_UDP%%; } server { listen 127.0.0.1:%%PORT_8984_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8991_UDP%%; proxy_requests 2; access_log %%TESTDIR%%/s.log status; } server { listen 127.0.0.1:%%PORT_8985_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8990_UDP%%; proxy_requests 2; proxy_responses 2; access_log %%TESTDIR%%/s2.log status; } } EOF $t->run_daemon(\&udp_daemon, $t, port(8990)); $t->run_daemon(\&udp_daemon, $t, port(8991)); $t->run(); $t->waitforfile($t->testdir . '/' . port(8990)); $t->waitforfile($t->testdir . '/' . port(8991)); ############################################################################### # proxy_requests 0, binding is not dropped across streams my $s = dgram('127.0.0.1:' . port(8980)); my $n = $s->io('1', read => 1); ok($n, 'requests 0 create'); is($s->read(), '1', 'requests 0 create - response'); is($s->io('1', read => 1), $n, 'requests 0 second - binding saved'); is($s->read(), '1', 'requests 0 second - response'); is($s->io('1', read => 1), $n, 'requests 0 follow - binding saved'); is($s->read(), '1', 'requests 0 follow - response'); # proxy_requests 1, binding is dropped on every next stream $s = dgram('127.0.0.1:' . port(8981)); $n = $s->io('1', read => 1); ok($n, 'requests 1 create'); is($s->read(), '1', 'requests 1 create - response'); isnt($s->io('1', read => 1), $n, 'requests 1 second - binding lost'); is($s->read(), '1', 'requests 1 second - response'); # proxy_requests 2, binding is dropped on every second stream $s = dgram('127.0.0.1:' . port(8982)); $n = $s->io('1', read => 1); ok($n, 'requests 2 create'); is($s->read(), '1', 'requests 2 create - response'); is($s->io('1', read => 1), $n, 'requests 2 second - binding saved'); is($s->read(), '1', 'requests 2 second - response'); isnt($s->io('1', read => 1), $n, 'requests 2 follow - binding lost'); is($s->read(), '1', 'requests 2 follow - response'); # proxy_requests unset, binding is not dropped across streams $s = dgram('127.0.0.1:' . port(8983)); $n = $s->io('1', read => 1); ok($n, 'requests unset create'); is($s->read(), '1', 'requests unset create - response'); is($s->io('1', read => 1), $n, 'requests unset second - binding saved'); is($s->read(), '1', 'requests unset second - response'); is($s->io('1', read => 1), $n, 'requests unset follow - binding saved'); is($s->read(), '1', 'requests unset follow - response'); # proxy_requests 2, with slow backend # client sends 5 packets, each responded with 3 packets # expects all packets proxied from backend, the last (uneven) session succeed $s = dgram('127.0.0.1:' . port(8984)); $s->write('2') for 1 .. 5; my $b = join ' ', map { $s->read() } (1 .. 15); like($b, qr/^(\d+ 1 2) \1 (?!\1)(\d+ 1 2) \2 (?!\2)\d+ 1 2$/, 'slow backend'); # proxy_requests 2, proxy_responses 2 # client sends 5 packets, each responded with 2 packets # expects all packets proxied from backend, the last (uneven) session succeed $s = dgram('127.0.0.1:' . port(8985)); $s->write('1') for 1 .. 5; $b = join ' ', map { $s->read() } (1 .. 10); SKIP: { skip 'session could early terminate', 1 unless $ENV{TEST_NGINX_UNSAFE}; like($b, qr/^(\d+ 1) \1 (?!\1)(\d+ 1) \2 (?!\2)\d+ 1$/, 'requests - responses'); } $t->stop(); is($t->read_file('s.log'), <<EOF, 'uneven session status - slow backend'); 200 200 200 EOF is($t->read_file('s2.log'), <<EOF, 'uneven session status - responses'); 200 200 200 EOF ############################################################################### sub udp_daemon { my ($t, $port) = @_; my $server = IO::Socket::INET->new( Proto => 'udp', LocalAddr => "127.0.0.1:$port", Reuse => 1 ) or die "Can't create listening socket: $!\n"; # signal we are ready open my $fh, '>', $t->testdir() . "/$port"; close $fh; my $slp = 1 if $port == port(8991); while (1) { $server->recv(my $buffer, 65536); sleep 1, $slp = 0 if $slp; $server->send($server->peerport()); $server->send($_) for (1 .. $buffer); } } ###############################################################################