Mercurial > hg > nginx-tests
view http_resolver_cleanup.t @ 1940:aec72dcee93b
Tests: unconditional QUIC datagram expansion with Initial packets.
Used to get rid of "quic UDP datagram is too small for initial packet" messages.
In future, we may need this to reconsider to allow mocking with custom padding,
but for now suppressing such messages is sufficiently good enough.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Mon, 11 Dec 2023 14:01:49 +0400 |
parents | 766bcbb632ee |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for http resolver, worker process termination. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http proxy/); plan(skip_all => 'win32') if $^O eq 'MSWin32'; $t->write_file_expand('nginx.conf', <<'EOF')->plan(1); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; location / { resolver 127.0.0.1:%%PORT_8981_UDP%%; proxy_pass http://example.net/$args; } location /pid { add_header X-Pid $pid always; } } } EOF $t->run_daemon(\&dns_daemon, $t); $t->run()->waitforfile($t->testdir . '/' . port(8981)); ############################################################################### # truncated UDP response, no response over TCP my $s = http_get('/', start => 1); pass('request'); sleep 1; # retrasmission timer wasn't removed during resolver cleanup, # while the event memory was freed, resulting in use-after-free # when later removing timer in TCP connection http_get('/pid') =~ qr/X-Pid: (\d+)/; kill 'TERM', $1; ############################################################################### sub dns_daemon { my ($t) = @_; my ($data); my $socket = IO::Socket::INET->new( LocalAddr => '127.0.0.1', LocalPort => port(8981), Proto => 'udp', ) or die "Can't create UDP socket: $!\n"; # signal we are ready open my $fh, '>', $t->testdir() . '/' . port(8981); close $fh; while (1) { $socket->recv($data, 65536); # truncation bit set $data |= pack("n2", 0, 0x8380); $socket->send($data); } } ###############################################################################