Mercurial > hg > nginx-tests
view ssl_verify_depth.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 | b28f88e352dd |
children | cdcd75657e52 |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for http ssl module, ssl_verify_depth. ############################################################################### 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; eval { require IO::Socket::SSL; }; plan(skip_all => 'IO::Socket::SSL not installed') if $@; eval { IO::Socket::SSL::SSL_VERIFY_NONE(); }; plan(skip_all => 'IO::Socket::SSL too old') if $@; my $t = Test::Nginx->new()->has(qw/http http_ssl/)->has_daemon('openssl'); plan(skip_all => 'LibreSSL') if $t->has_module('LibreSSL'); $t->plan(9)->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% ssl_certificate localhost.crt; ssl_certificate_key localhost.key; ssl_verify_client on; ssl_client_certificate root-int.crt; add_header X-Client $ssl_client_s_dn always; add_header X-Verify $ssl_client_verify always; server { listen 127.0.0.1:8080 ssl; server_name localhost; ssl_verify_depth 0; } server { listen 127.0.0.1:8081 ssl; server_name localhost; ssl_verify_depth 1; } server { listen 127.0.0.1:8082 ssl; server_name localhost; ssl_verify_depth 2; } } EOF my $d = $t->testdir(); $t->write_file('openssl.conf', <<EOF); [ req ] default_bits = 2048 encrypt_key = no distinguished_name = req_distinguished_name [ req_distinguished_name ] EOF $t->write_file('ca.conf', <<EOF); [ ca ] default_ca = myca [ myca ] new_certs_dir = $d database = $d/certindex default_md = sha256 policy = myca_policy serial = $d/certserial default_days = 1 x509_extensions = myca_extensions [ myca_policy ] commonName = supplied [ myca_extensions ] basicConstraints = critical,CA:TRUE EOF foreach my $name ('root', '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"; } foreach my $name ('int', 'end') { system("openssl req -new " . "-config $d/openssl.conf -subj /CN=$name/ " . "-out $d/$name.csr -keyout $d/$name.key " . ">>$d/openssl.out 2>&1") == 0 or die "Can't create certificate for $name: $!\n"; } $t->write_file('certserial', '1000'); $t->write_file('certindex', ''); system("openssl ca -batch -config $d/ca.conf " . "-keyfile $d/root.key -cert $d/root.crt " . "-subj /CN=int/ -in $d/int.csr -out $d/int.crt " . ">>$d/openssl.out 2>&1") == 0 or die "Can't sign certificate for int: $!\n"; system("openssl ca -batch -config $d/ca.conf " . "-keyfile $d/int.key -cert $d/int.crt " . "-subj /CN=end/ -in $d/end.csr -out $d/end.crt " . ">>$d/openssl.out 2>&1") == 0 or die "Can't sign certificate for end: $!\n"; $t->write_file('root-int.crt', $t->read_file('root.crt') . $t->read_file('int.crt')); $t->write_file('t', ''); $t->run(); ############################################################################### # with verify depth 0, only self-signed certificates should # be allowed # OpenSSL 1.1.0+ instead limits the number of intermediate certs allowed; # as a result, it is not possible to limit certificate checking # to self-signed certificates only when using OpenSSL 1.1.0+ like(get(8080, 'root'), qr/SUCCESS/, 'verify depth 0 - root'); like(get(8080, 'int'), qr/FAI|SUC/, 'verify depth 0 - no int'); like(get(8080, 'end'), qr/FAILED/, 'verify depth 0 - no end'); # with verify depth 1 (the default), one signature is # expected to be checked, so certificates directly signed # by the root cert are allowed, but nothing more # OpenSSL 1.1.0+ instead limits the number of intermediate certs allowed; # so with depth 1 it is possible to validate not only directly signed # certificates, but also chains with one intermediate certificate like(get(8081, 'root'), qr/SUCCESS/, 'verify depth 1 - root'); like(get(8081, 'int'), qr/SUCCESS/, 'verify depth 1 - int'); like(get(8081, 'end'), qr/FAI|SUC/, 'verify depth 1 - no end'); # with verify depth 2 it is also possible to validate up to two signatures, # so chains with one intermediate certificate are allowed like(get(8082, 'root'), qr/SUCCESS/, 'verify depth 2 - root'); like(get(8082, 'int'), qr/SUCCESS/, 'verify depth 2 - int'); like(get(8082, 'end'), qr/SUCCESS/, 'verify depth 2 - end'); ############################################################################### sub get { my ($port, $cert) = @_; my $s = get_ssl_socket($port, $cert) or return; http_get("/t?$cert", socket => $s); } sub get_ssl_socket { my ($port, $cert) = @_; my ($s); eval { local $SIG{ALRM} = sub { die "timeout\n" }; local $SIG{PIPE} = sub { die "sigpipe\n" }; alarm(8); $s = IO::Socket::SSL->new( Proto => 'tcp', PeerAddr => '127.0.0.1', PeerPort => port($port), SSL_verify_mode => IO::Socket::SSL::SSL_VERIFY_NONE(), SSL_cert_file => "$d/$cert.crt", SSL_key_file => "$d/$cert.key", SSL_error_trap => sub { die $_[1] } ); alarm(0); }; alarm(0); if ($@) { log_in("died: $@"); return undef; } return $s; } ###############################################################################