Mercurial > hg > nginx-tests
view h3_max_headers.t @ 1983:c7315caf2110
Tests: optimized processing of large QUIC packets with padding.
Path MTU discovery packets might contain a lot of padding, and creating
a copy of the whole buffer for each PADDING frame, which is just one
byte with type 0, consumes lots of resources. This was seen to result
in flapping of at least h3_keepalive.t and h3_ssl_early_data.t tests.
Fix is to copy at most 8 bytes for parse_int() calls when parsing
frame types.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 03 Jun 2024 04:17:28 +0300 |
parents | 2d58bb10ff5d |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for max_headers directive, HTTP/3. ############################################################################### use warnings; use strict; use Test::More; use Socket qw/ CRLF /; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::HTTP3; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http http_v3 rewrite cryptx/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% ssl_certificate localhost.crt; ssl_certificate_key localhost.key; server { listen 127.0.0.1:%%PORT_8980_UDP%% quic; server_name localhost; max_headers 5; location / { return 204; } } } EOF $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"; } $t->try_run('no max_headers')->plan(3); ############################################################################### like(get('/'), qr/ 204/, 'two headers'); like(get('/', ('Foo: bar') x 3), qr/ 204/, 'five headers'); like(get('/', ('Foo: bar') x 4), qr/ 400/, 'six headers rejected'); ############################################################################### sub get { my ($url, @headers) = @_; my $s = Test::Nginx::HTTP3->new(); my $sid = $s->new_stream({ headers => [ { name => ':method', value => 'GET' }, { name => ':scheme', value => 'http' }, { name => ':path', value => $url }, { name => ':authority', value => 'localhost' }, { name => 'foo', value => 'bar' }, { name => 'foo', value => 'bar' }, map { my ($n, $v) = split /:/; { name => lc $n, value => $v }; } @headers ] }); my $frames = $s->read(all => [{ sid => $sid, fin => 1 }]); my ($frame) = grep { $_->{type} eq "HEADERS" } @$frames; return join("\n", map { "$_: " . $frame->{headers}->{$_}; } keys %{$frame->{headers}}); } ###############################################################################