test/ssl-tests/02-protocol-version.conf.in

   1 # -*- mode: perl; -*-
   2
   3 ## Test version negotiation
   4
   5 package ssltests;
   6
   7 use List::Util qw/max min/;
   8
   9 use OpenSSL::Test;
  10 use OpenSSL::Test::Utils qw/anydisabled alldisabled/;
  11 setup("no_test_here");
  12
  13 my @protocols = ("SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2");
  14 # undef stands for "no limit".
  15 my @min_protocols = (undef, "SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2");
  16 my @max_protocols = ("SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2", undef);
  17
  18 my @is_disabled = anydisabled("ssl3", "tls1", "tls1_1", "tls1_2");
  19
  20 my $min_enabled; my $max_enabled;
  21
  22 # Protocol configuration works in cascades, i.e.,
  23 # $no_tls1_1 disables TLSv1.1 and below.
  24 #
  25 # $min_enabled and $max_enabled will be correct if there is at least one
  26 # protocol enabled.
  27 foreach my $i (0..$#protocols) {
  28     if (!$is_disabled[$i]) {
  29         $min_enabled = $i;
  30         last;
  31     }
  32 }
  33
  34 foreach my $i (0..$#protocols) {
  35     if (!$is_disabled[$i]) {
  36         $max_enabled = $i;
  37     }
  38 }
  39
  40 our @tests = ();
  41
  42 sub generate_tests() {
  43     foreach my $c_min (0..$#min_protocols) {
  44         my $c_max_min = $c_min == 0 ? 0 : $c_min - 1;
  45         foreach my $c_max ($c_max_min..$#max_protocols) {
  46             foreach my $s_min (0..$#min_protocols) {
  47                 my $s_max_min = $s_min == 0 ? 0 : $s_min - 1;
  48                 foreach my $s_max ($s_max_min..$#max_protocols) {
  49                     my ($result, $protocol) =
  50                         expected_result($c_min, $c_max, $s_min, $s_max);
  51                     push @tests, {
  52                         "name" => "version-negotiation",
  53                         "client" => {
  54                             "MinProtocol" => $min_protocols[$c_min],
  55                             "MaxProtocol" => $max_protocols[$c_max],
  56                         },
  57                         "server" => {
  58                             "MinProtocol" => $min_protocols[$s_min],
  59                             "MaxProtocol" => $max_protocols[$s_max],
  60                         },
  61                         "test" => {
  62                             "ExpectedResult" => $result,
  63                             "Protocol" => $protocol
  64                         }
  65                     };
  66                 }
  67             }
  68         }
  69     }
  70 }
  71
  72 sub expected_result {
  73     my $no_tls = alldisabled("ssl3", "tls1", "tls1_1", "tls1_2");
  74     if ($no_tls) {
  75         return ("InternalError", undef);
  76     }
  77
  78     my ($c_min, $c_max, $s_min, $s_max) = @_;
  79
  80     # Adjust for "undef" (no limit).
  81     $c_min = $c_min == 0 ? 0 : $c_min - 1;
  82     $c_max = $c_max == scalar(@max_protocols) - 1 ? $c_max - 1 : $c_max;
  83     $s_min = $s_min == 0 ? 0 : $s_min - 1;
  84     $s_max = $s_max == scalar(@max_protocols) - 1 ? $s_max - 1 : $s_max;
  85
  86     # We now have at least one protocol enabled, so $min_enabled and
  87     # $max_enabled are well-defined.
  88     $c_min = max $c_min, $min_enabled;
  89     $s_min = max $s_min, $min_enabled;
  90     $c_max = min $c_max, $max_enabled;
  91     $s_max = min $s_max, $max_enabled;
  92
  93     if ($c_min > $c_max) {
  94         # Client should fail to even send a hello.
  95         # This results in an internal error since the server will be
  96         # waiting for input that never arrives.
  97         return ("InternalError", undef);
  98     } elsif ($s_min > $s_max) {
  99         # Server has no protocols, should always fail.
 100         return ("ServerFail", undef);
 101     } elsif ($s_min > $c_max) {
 102         # Server doesn't support the client range.
 103         return ("ServerFail", undef);
 104     } elsif ($c_min > $s_max) {
 105         # Server will try with a version that is lower than the lowest
 106         # supported client version.
 107         return ("ClientFail", undef);
 108     } else {
 109         # Server and client ranges overlap.
 110         my $max_common = $s_max < $c_max ? $s_max : $c_max;
 111         return ("Success", $protocols[$max_common]);
 112     }
 113 }
 114
 115 generate_tests();