Mercurial > hg > nginx-tests
view stream_udp_limit_conn.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 | f3ba4c74de31 |
children |
line wrap: on
line source
#!/usr/bin/perl # (C) Andrey Zelenkov # (C) Nginx, Inc. # Tests for stream limit_conn module with datagrams. ############################################################################### 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 stream_limit_conn udp/)->plan(9) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% limit_conn_zone $binary_remote_addr zone=zone:1m; limit_conn_zone $binary_remote_addr zone=zone2:1m; proxy_responses 1; proxy_timeout 1s; server { listen 127.0.0.1:%%PORT_8981_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8980_UDP%%; limit_conn zone 1; proxy_responses 2; } server { listen 127.0.0.1:%%PORT_8982_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8980_UDP%%; limit_conn zone2 1; } server { listen 127.0.0.1:%%PORT_8983_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8980_UDP%%; limit_conn zone 5; } server { listen 127.0.0.1:%%PORT_8984_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8981_UDP%%; limit_conn zone2 1; } server { listen 127.0.0.1:%%PORT_8985_UDP%% udp; proxy_pass 127.0.0.1:%%PORT_8981_UDP%%; limit_conn zone 1; } } EOF $t->run(); $t->run_daemon(\&udp_daemon, $t); $t->waitforfile($t->testdir . '/' . port(8980)); ############################################################################### # same and other zones my $s = dgram('127.0.0.1:' . port(8981)); is($s->io('1'), '1', 'passed'); # regardless of incomplete responses, new requests in the same # socket will be treated as requests in existing session is($s->io('1', read_timeout => 0.4), '1', 'passed new request'); is(dgram('127.0.0.1:' . port(8981))->io('1', read_timeout => 0.1), '', 'rejected new session'); is(dgram('127.0.0.1:' . port(8982))->io('1'), '1', 'passed different zone'); is(dgram('127.0.0.1:' . port(8983))->io('1'), '1', 'passed same zone unlimited'); sleep 1; # waiting for proxy_timeout to expire is($s->io('2', read => 2), '12', 'new session after proxy_timeout'); is(dgram('127.0.0.1:' . port(8981))->io('2', read => 2), '12', 'passed 2'); # zones proxy chain is(dgram('127.0.0.1:' . port(8984))->io('1'), '1', 'passed proxy'); is(dgram('127.0.0.1:' . port(8985))->io('1', read_timeout => 0.1), '', 'rejected proxy'); ############################################################################### sub udp_daemon { my $t = shift; my $server = IO::Socket::INET->new( Proto => 'udp', LocalAddr => '127.0.0.1:' . port(8980), Reuse => 1, ) or die "Can't create listening socket: $!\n"; # signal we are ready open my $fh, '>', $t->testdir() . '/' . port(8980); close $fh; while (1) { $server->recv(my $buffer, 65536); $server->send($_) for (1 .. $buffer); } } ###############################################################################