Mercurial > hg > nginx-tests
view stream_ssl_preread.t @ 1752:ba6e24e38f03
Tests: improved stop_daemons() to send signal again.
As was observed, it's possible that a signal to complete a uwsgi daemon
can be ignored while it is starting up, which results in tests hang due
to eternal waiting on child processes termination. Notably, it is seen
when running tests with a high number of prove jobs on a low-profile VM
against nginx with broken modules and/or configuration. To reproduce:
$ TEST_NGINX_GLOBALS=ERROR prove -j16 uwsgi*.t
Inspecting uwsgi under ktrace on FreeBSD confirms that a SIGTERM signal
is ignored at the very beginning of uwsgi startup. It is then replaced
with a default action after listen(), thus waiting until uwsgi is ready
to accept new TCP connections doesn't completely solve the hang window.
The fix is to retry sending a signal some time after waitpid(WNOHANG)
continuously demonstrated no progress with reaping a signaled process.
It is modelled after f13ead27f89c that improved stop() for nginx.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Wed, 29 Dec 2021 22:29:23 +0300 |
parents | f3ba4c74de31 |
children | cdcd75657e52 |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for stream_ssl_preread module. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ stream /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_map stream_ssl_preread/) ->has(qw/stream_ssl stream_return/)->has_daemon('openssl') ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% log_format status $status; map $ssl_preread_server_name $name { "" 127.0.0.1:8093; default $ssl_preread_server_name; } upstream foo { server 127.0.0.1:8091; } upstream bar { server 127.0.0.1:8092; } upstream next { server 127.0.0.1:8094; server 127.0.0.1:8080; } ssl_preread on; server { listen 127.0.0.1:8080; return $name; } server { listen 127.0.0.1:8081; proxy_pass $name; } server { listen 127.0.0.1:8082; proxy_pass $name; ssl_preread off; } server { listen 127.0.0.1:8083; proxy_pass $name; preread_timeout 2s; preread_buffer_size 42; access_log %%TESTDIR%%/status.log status; } server { listen 127.0.0.1:8084; proxy_pass next; proxy_connect_timeout 2s; preread_buffer_size 8; } ssl_certificate_key localhost.key; ssl_certificate localhost.crt; server { listen 127.0.0.1:8091 ssl; listen 127.0.0.1:8092 ssl; listen 127.0.0.1:8093 ssl; ssl_preread off; return $server_port; } } EOF eval { require IO::Socket::SSL; die if $IO::Socket::SSL::VERSION < 1.56; }; plan(skip_all => 'IO::Socket::SSL version >= 1.56 required') if $@; eval { if (IO::Socket::SSL->can('can_client_sni')) { IO::Socket::SSL->can_client_sni() or die; } }; plan(skip_all => 'IO::Socket::SSL with OpenSSL SNI support required') if $@; eval { my $ctx = Net::SSLeay::CTX_new() or die; my $ssl = Net::SSLeay::new($ctx) or die; Net::SSLeay::set_tlsext_host_name($ssl, 'example.org') == 1 or die; }; plan(skip_all => 'Net::SSLeay with OpenSSL SNI support required') if $@; $t->plan(13); $t->write_file('openssl.conf', <<EOF); [ req ] default_bits = 2048 encrypt_key = no distinguished_name = req_distinguished_name [ req_distinguished_name ] EOF my $d = $t->testdir(); foreach my $name ('localhost') { system('openssl req -x509 -new ' . "-config $d/openssl.conf -subj /CN=$name/ " . "-out $d/$name.crt -keyout $d/$name.key " . ">>$d/openssl.out 2>&1") == 0 or die "Can't create certificate for $name: $!\n"; } $t->run(); ############################################################################### my ($p1, $p2, $p3, $p4) = (port(8091), port(8092), port(8093), port(8084)); is(get_ssl('foo', 8081), $p1, 'sni'); is(get_ssl('foo', 8081), $p1, 'sni again'); is(get_ssl('bar', 8081), $p2, 'sni 2'); is(get_ssl('bar', 8081), $p2, 'sni 2 again'); # fallback to an empty value for some reason is(get_ssl('', 8081), $p3, 'no sni'); is(get_ssl('foo', 8082), $p3, 'preread off'); is(get_ssl('foo', 8083), undef, 'preread buffer full'); is(stream('127.0.0.1:' . port(8080))->io('x' x 1000), "127.0.0.1:$p3", 'not a handshake'); # ticket #1317 is(stream("127.0.0.1:$p4")->io('x' x 16), "127.0.0.1:$p3", 'pending buffers on next upstream'); # no junk in variable due to short ClientHello length value is(get_short(), "127.0.0.1:$p3", 'short client hello'); # allow record with older SSL version, such as 3.0 is(get_oldver(), 'foo', 'older version in ssl record'); # SNI "foo|f" fragmented across TLS records is(get_frag(), 'foof', 'handshake fragment split on SNI'); $t->stop(); is($t->read_file('status.log'), "400\n", 'preread buffer full - log'); ############################################################################### sub get_frag { my $r = pack("N*", 0x16030100, 0x3b010000, 0x380303ac, 0x8c8678a0, 0xaa1e7eed, 0x3644eed6, 0xc3bd2c69, 0x7bc7deda, 0x249db0e3, 0x0c339eba, 0xa80b7600, 0x00020000, 0x0100000d, 0x00000009, 0x00070000, 0x04666f6f, 0x16030100); $r .= pack("n", 0x0166); http($r); } sub get_short { my $r = pack("N*", 0x16030100, 0x38010000, 0x330303eb); $r .= pack("N*", 0x6357cdba, 0xa6b8d853, 0xf1f6ac0f); $r .= pack("N*", 0xdf03178c, 0x0ae41824, 0xe7643682); $r .= pack("N*", 0x3c1b273f, 0xbfde4b00, 0x00000000); $r .= pack("CN3", 0x0c, 0x00000008, 0x00060000, 0x03666f6f); http($r); } sub get_oldver { my $r = pack("N*", 0x16030000, 0x38010000, 0x340303eb); $r .= pack("N*", 0x6357cdba, 0xa6b8d853, 0xf1f6ac0f); $r .= pack("N*", 0xdf03178c, 0x0ae41824, 0xe7643682); $r .= pack("N*", 0x3c1b273f, 0xbfde4b00, 0x00000000); $r .= pack("CN3", 0x0c, 0x00000008, 0x00060000, 0x03666f6f); http($r); } sub get_ssl { my ($host, $port) = @_; my $s = stream('127.0.0.1:' . port($port)); eval { local $SIG{ALRM} = sub { die "timeout\n" }; local $SIG{PIPE} = sub { die "sigpipe\n" }; alarm(8); IO::Socket::SSL->start_SSL($s->{_socket}, SSL_hostname => $host, SSL_verify_mode => IO::Socket::SSL::SSL_VERIFY_NONE(), SSL_error_trap => sub { die $_[1] } ); alarm(0); }; alarm(0); if ($@) { log_in("died: $@"); return undef; } return $s->read(); } ###############################################################################