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2dc0204603
boringssl/ssl/ssl_test.cc
David Benjamin 2dc0204603 Don't return invalid versions in version_from_wire. 
This is in preparation for using the supported_versions extension to
experiment with draft TLS 1.3 versions, since we don't wish to restore
the fallback. With versions begin opaque values, we will want
version_from_wire to reject unknown values, not attempt to preserve
order in some way.

This means ClientHello.version processing needs to be separate code.
That's just written out fully in negotiate_version now. It also means
SSL_set_{min,max}_version will notice invalid inputs which aligns us
better with upstream's versions of those APIs.

This CL doesn't replace ssl->version with an internal-representation
version, though follow work should do it once a couple of changes land
in consumers.

BUG=90

Change-Id: Id2f5e1fa72847c823ee7f082e9e69f55e51ce9da
Reviewed-on: https://boringssl-review.googlesource.com/11122
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-09-21 19:51:45 +00:00

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/* Copyright (c) 2014, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <algorithm>
#include <string>
#include <utility>
#include <vector>
#include <openssl/base64.h>
#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/sha.h>
#include <openssl/ssl.h>
#include <openssl/x509.h>
#include "internal.h"
#include "../crypto/internal.h"
#include "../crypto/test/test_util.h"
#if defined(OPENSSL_WINDOWS)
/* Windows defines struct timeval in winsock2.h. */
OPENSSL_MSVC_PRAGMA(warning(push, 3))
#include <winsock2.h>
OPENSSL_MSVC_PRAGMA(warning(pop))
#else
#include <sys/time.h>
#endif
struct ExpectedCipher {
unsigned long id;
int in_group_flag;
};
struct CipherTest {
// The rule string to apply.
const char *rule;
// The list of expected ciphers, in order.
std::vector<ExpectedCipher> expected;
};
static const CipherTest kCipherTests[] = {
// Selecting individual ciphers should work.
{
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256",
{
{TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// + reorders selected ciphers to the end, keeping their relative order.
{
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256:"
"+aRSA",
{
{TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// ! banishes ciphers from future selections.
{
"!aRSA:"
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256",
{
{TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// Multiple masks can be ANDed in a single rule.
{
"kRSA+AESGCM+AES128",
{
{TLS1_CK_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// - removes selected ciphers, but preserves their order for future
// selections. Select AES_128_GCM, but order the key exchanges RSA, DHE_RSA,
// ECDHE_RSA.
{
"ALL:-kECDHE:-kDHE:-kRSA:-ALL:"
"AESGCM+AES128+aRSA",
{
{TLS1_CK_RSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// Unknown selectors are no-ops.
{
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256:"
"BOGUS1:-BOGUS2:+BOGUS3:!BOGUS4",
{
{TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// Square brackets specify equi-preference groups.
{
"[ECDHE-ECDSA-CHACHA20-POLY1305|ECDHE-ECDSA-AES128-GCM-SHA256]:"
"[ECDHE-RSA-CHACHA20-POLY1305]:"
"ECDHE-RSA-AES128-GCM-SHA256",
{
{TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 1},
{TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD, 1},
{TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 1},
{TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// @STRENGTH performs a stable strength-sort of the selected ciphers and
// only the selected ciphers.
{
// To simplify things, banish all but {ECDHE_RSA,RSA} x
// {CHACHA20,AES_256_CBC,AES_128_CBC} x SHA1.
"!kEDH:!AESGCM:!3DES:!SHA256:!MD5:!SHA384:"
// Order some ciphers backwards by strength.
"ALL:-CHACHA20:-AES256:-AES128:-ALL:"
// Select ECDHE ones and sort them by strength. Ties should resolve
// based on the order above.
"kECDHE:@STRENGTH:-ALL:"
// Now bring back everything uses RSA. ECDHE_RSA should be first, sorted
// by strength. Then RSA, backwards by strength.
"aRSA",
{
{TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA, 0},
{TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA, 0},
{TLS1_CK_RSA_WITH_AES_128_SHA, 0},
{TLS1_CK_RSA_WITH_AES_256_SHA, 0},
},
},
// Exact ciphers may not be used in multi-part rules; they are treated
// as unknown aliases.
{
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256:"
"!ECDHE-RSA-AES128-GCM-SHA256+RSA:"
"!ECDSA+ECDHE-ECDSA-AES128-GCM-SHA256",
{
{TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0},
{TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0},
},
},
// SSLv3 matches everything that existed before TLS 1.2.
{
"AES128-SHA:AES128-SHA256:!SSLv3",
{
{TLS1_CK_RSA_WITH_AES_128_SHA256, 0},
},
},
// TLSv1.2 matches everything added in TLS 1.2.
{
"AES128-SHA:AES128-SHA256:!TLSv1.2",
{
{TLS1_CK_RSA_WITH_AES_128_SHA, 0},
},
},
// The two directives have no intersection.
{
"AES128-SHA:AES128-SHA256:!TLSv1.2+SSLv3",
{
{TLS1_CK_RSA_WITH_AES_128_SHA, 0},
{TLS1_CK_RSA_WITH_AES_128_SHA256, 0},
},
},
// The shared name of the CHACHA20_POLY1305 variants behaves like a cipher
// name and not an alias. It may not be used in a multipart rule. (That the
// shared name works is covered by the standard tests.)
{
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"!ECDHE-RSA-CHACHA20-POLY1305+RSA:"
"!ECDSA+ECDHE-ECDSA-CHACHA20-POLY1305",
{
{TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD, 0},
{TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 0},
{TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD, 0},
},
},
};
static const char *kBadRules[] = {
// Invalid brackets.
"[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256",
"RSA]",
"[[RSA]]",
// Operators inside brackets.
"[+RSA]",
// Unknown directive.
"@BOGUS",
// Empty cipher lists error at SSL_CTX_set_cipher_list.
"",
"BOGUS",
// COMPLEMENTOFDEFAULT is empty.
"COMPLEMENTOFDEFAULT",
// Invalid command.
"?BAR",
// Special operators are not allowed if groups are used.
"[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:+FOO",
"[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:!FOO",
"[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:-FOO",
"[ECDHE-RSA-CHACHA20-POLY1305|ECDHE-RSA-AES128-GCM-SHA256]:@STRENGTH",
};
static const char *kMustNotIncludeNull[] = {
"ALL",
"DEFAULT",
"ALL:!eNULL",
"ALL:!NULL",
"HIGH",
"FIPS",
"SHA",
"SHA1",
"RSA",
"SSLv3",
"TLSv1",
"TLSv1.2",
};
static const char *kMustNotIncludeCECPQ1[] = {
"ALL",
"DEFAULT",
"HIGH",
"FIPS",
"SHA",
"SHA1",
"SHA256",
"SHA384",
"RSA",
"SSLv3",
"TLSv1",
"TLSv1.2",
"aRSA",
"RSA",
"aECDSA",
"ECDSA",
"AES",
"AES128",
"AES256",
"AESGCM",
"CHACHA20",
};
static void PrintCipherPreferenceList(ssl_cipher_preference_list_st *list) {
bool in_group = false;
for (size_t i = 0; i < sk_SSL_CIPHER_num(list->ciphers); i++) {
const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(list->ciphers, i);
if (!in_group && list->in_group_flags[i]) {
fprintf(stderr, "\t[\n");
in_group = true;
}
fprintf(stderr, "\t");
if (in_group) {
fprintf(stderr, " ");
}
fprintf(stderr, "%s\n", SSL_CIPHER_get_name(cipher));
if (in_group && !list->in_group_flags[i]) {
fprintf(stderr, "\t]\n");
in_group = false;
}
}
}
static bool TestCipherRule(const CipherTest &t) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
if (!SSL_CTX_set_cipher_list(ctx.get(), t.rule)) {
fprintf(stderr, "Error testing cipher rule '%s'\n", t.rule);
return false;
}
// Compare the two lists.
if (sk_SSL_CIPHER_num(ctx->cipher_list->ciphers) != t.expected.size()) {
fprintf(stderr, "Error: cipher rule '%s' evaluated to:\n", t.rule);
PrintCipherPreferenceList(ctx->cipher_list);
return false;
}
for (size_t i = 0; i < t.expected.size(); i++) {
const SSL_CIPHER *cipher =
sk_SSL_CIPHER_value(ctx->cipher_list->ciphers, i);
if (t.expected[i].id != SSL_CIPHER_get_id(cipher) ||
t.expected[i].in_group_flag != ctx->cipher_list->in_group_flags[i]) {
fprintf(stderr, "Error: cipher rule '%s' evaluated to:\n", t.rule);
PrintCipherPreferenceList(ctx->cipher_list);
return false;
}
}
return true;
}
static bool TestRuleDoesNotIncludeNull(const char *rule) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(SSLv23_server_method()));
if (!ctx) {
return false;
}
if (!SSL_CTX_set_cipher_list(ctx.get(), rule)) {
fprintf(stderr, "Error: cipher rule '%s' failed\n", rule);
return false;
}
for (size_t i = 0; i < sk_SSL_CIPHER_num(ctx->cipher_list->ciphers); i++) {
if (SSL_CIPHER_is_NULL(sk_SSL_CIPHER_value(ctx->cipher_list->ciphers, i))) {
fprintf(stderr, "Error: cipher rule '%s' includes NULL\n",rule);
return false;
}
}
return true;
}
static bool TestRuleDoesNotIncludeCECPQ1(const char *rule) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
if (!SSL_CTX_set_cipher_list(ctx.get(), rule)) {
fprintf(stderr, "Error: cipher rule '%s' failed\n", rule);
return false;
}
for (size_t i = 0; i < sk_SSL_CIPHER_num(ctx->cipher_list->ciphers); i++) {
if (SSL_CIPHER_is_CECPQ1(sk_SSL_CIPHER_value(ctx->cipher_list->ciphers, i))) {
fprintf(stderr, "Error: cipher rule '%s' includes CECPQ1\n",rule);
return false;
}
}
return true;
}
static bool TestCipherRules() {
for (const CipherTest &test : kCipherTests) {
if (!TestCipherRule(test)) {
return false;
}
}
for (const char *rule : kBadRules) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(SSLv23_server_method()));
if (!ctx) {
return false;
}
if (SSL_CTX_set_cipher_list(ctx.get(), rule)) {
fprintf(stderr, "Cipher rule '%s' unexpectedly succeeded\n", rule);
return false;
}
ERR_clear_error();
}
for (const char *rule : kMustNotIncludeNull) {
if (!TestRuleDoesNotIncludeNull(rule)) {
return false;
}
}
for (const char *rule : kMustNotIncludeCECPQ1) {
if (!TestRuleDoesNotIncludeCECPQ1(rule)) {
return false;
}
}
return true;
}
// kOpenSSLSession is a serialized SSL_SESSION generated from openssl
// s_client -sess_out.
static const char kOpenSSLSession[] =
"MIIFpQIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ"
"kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH"
"IWoJoQYCBFRDO46iBAICASyjggR6MIIEdjCCA16gAwIBAgIIK9dUvsPWSlUwDQYJ"
"KoZIhvcNAQEFBQAwSTELMAkGA1UEBhMCVVMxEzARBgNVBAoTCkdvb2dsZSBJbmMx"
"JTAjBgNVBAMTHEdvb2dsZSBJbnRlcm5ldCBBdXRob3JpdHkgRzIwHhcNMTQxMDA4"
"MTIwNzU3WhcNMTUwMTA2MDAwMDAwWjBoMQswCQYDVQQGEwJVUzETMBEGA1UECAwK"
"Q2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UECgwKR29v"
"Z2xlIEluYzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wggEiMA0GCSqGSIb3DQEB"
"AQUAA4IBDwAwggEKAoIBAQCcKeLrplAC+Lofy8t/wDwtB6eu72CVp0cJ4V3lknN6"
"huH9ct6FFk70oRIh/VBNBBz900jYy+7111Jm1b8iqOTQ9aT5C7SEhNcQFJvqzH3e"
"MPkb6ZSWGm1yGF7MCQTGQXF20Sk/O16FSjAynU/b3oJmOctcycWYkY0ytS/k3LBu"
"Id45PJaoMqjB0WypqvNeJHC3q5JjCB4RP7Nfx5jjHSrCMhw8lUMW4EaDxjaR9KDh"
"PLgjsk+LDIySRSRDaCQGhEOWLJZVLzLo4N6/UlctCHEllpBUSvEOyFga52qroGjg"
"rf3WOQ925MFwzd6AK+Ich0gDRg8sQfdLH5OuP1cfLfU1AgMBAAGjggFBMIIBPTAd"
"BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwGQYDVR0RBBIwEIIOd3d3Lmdv"
"b2dsZS5jb20waAYIKwYBBQUHAQEEXDBaMCsGCCsGAQUFBzAChh9odHRwOi8vcGtp"
"Lmdvb2dsZS5jb20vR0lBRzIuY3J0MCsGCCsGAQUFBzABhh9odHRwOi8vY2xpZW50"
"czEuZ29vZ2xlLmNvbS9vY3NwMB0GA1UdDgQWBBQ7a+CcxsZByOpc+xpYFcIbnUMZ"
"hTAMBgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFErdBhYbvPZotXb1gba7Yhq6WoEv"
"MBcGA1UdIAQQMA4wDAYKKwYBBAHWeQIFATAwBgNVHR8EKTAnMCWgI6Ahhh9odHRw"
"Oi8vcGtpLmdvb2dsZS5jb20vR0lBRzIuY3JsMA0GCSqGSIb3DQEBBQUAA4IBAQCa"
"OXCBdoqUy5bxyq+Wrh1zsyyCFim1PH5VU2+yvDSWrgDY8ibRGJmfff3r4Lud5kal"
"dKs9k8YlKD3ITG7P0YT/Rk8hLgfEuLcq5cc0xqmE42xJ+Eo2uzq9rYorc5emMCxf"
"5L0TJOXZqHQpOEcuptZQ4OjdYMfSxk5UzueUhA3ogZKRcRkdB3WeWRp+nYRhx4St"
"o2rt2A0MKmY9165GHUqMK9YaaXHDXqBu7Sefr1uSoAP9gyIJKeihMivsGqJ1TD6Z"
"cc6LMe+dN2P8cZEQHtD1y296ul4Mivqk3jatUVL8/hCwgch9A8O4PGZq9WqBfEWm"
"IyHh1dPtbg1lOXdYCWtjpAIEAKUDAgEUqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36S"
"YTcLEkXqKwOBfF9vE4KX0NxeLwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9B"
"sNHM362zZnY27GpTw+Kwd751CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yE"
"OTDKPNj3+inbMaVigtK4PLyPq+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdA"
"i4gv7Y5oliyn";
// kCustomSession is a custom serialized SSL_SESSION generated by
// filling in missing fields from |kOpenSSLSession|. This includes
// providing |peer_sha256|, so |peer| is not serialized.
static const char kCustomSession[] =
"MIIBdgIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ"
"kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH"
"IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE"
"BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe"
"LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751"
"CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP"
"q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG"
"BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBLADBAEF";
// kBoringSSLSession is a serialized SSL_SESSION generated from bssl client.
static const char kBoringSSLSession[] =
"MIIRwQIBAQICAwMEAsAvBCDdoGxGK26mR+8lM0uq6+k9xYuxPnwAjpcF9n0Yli9R"
"kQQwbyshfWhdi5XQ1++7n2L1qqrcVlmHBPpr6yknT/u4pUrpQB5FZ7vqvNn8MdHf"
"9rWgoQYCBFXgs7uiBAICHCCjggR6MIIEdjCCA16gAwIBAgIIf+yfD7Y6UicwDQYJ"
"KoZIhvcNAQELBQAwSTELMAkGA1UEBhMCVVMxEzARBgNVBAoTCkdvb2dsZSBJbmMx"
"JTAjBgNVBAMTHEdvb2dsZSBJbnRlcm5ldCBBdXRob3JpdHkgRzIwHhcNMTUwODEy"
"MTQ1MzE1WhcNMTUxMTEwMDAwMDAwWjBoMQswCQYDVQQGEwJVUzETMBEGA1UECAwK"
"Q2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UECgwKR29v"
"Z2xlIEluYzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wggEiMA0GCSqGSIb3DQEB"
"AQUAA4IBDwAwggEKAoIBAQC0MeG5YGQ0t+IeJeoneP/PrhEaieibeKYkbKVLNZpo"
"PLuBinvhkXZo3DC133NpCBpy6ZktBwamqyixAyuk/NU6OjgXqwwxfQ7di1AInLIU"
"792c7hFyNXSUCG7At8Ifi3YwBX9Ba6u/1d6rWTGZJrdCq3QU11RkKYyTq2KT5mce"
"Tv9iGKqSkSTlp8puy/9SZ/3DbU3U+BuqCFqeSlz7zjwFmk35acdCilpJlVDDN5C/"
"RCh8/UKc8PaL+cxlt531qoTENvYrflBno14YEZlCBZsPiFeUSILpKEj3Ccwhy0eL"
"EucWQ72YZU8mUzXBoXGn0zA0crFl5ci/2sTBBGZsylNBAgMBAAGjggFBMIIBPTAd"
"BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwGQYDVR0RBBIwEIIOd3d3Lmdv"
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// kBadSessionExtraField is a custom serialized SSL_SESSION generated by replacing
// the final (optional) element of |kCustomSession| with tag number 30.
static const char kBadSessionExtraField[] =
"MIIBdgIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ"
"kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH"
"IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE"
"BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe"
"LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751"
"CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP"
"q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG"
"BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBL4DBAEF";
// kBadSessionVersion is a custom serialized SSL_SESSION generated by replacing
// the version of |kCustomSession| with 2.
static const char kBadSessionVersion[] =
"MIIBdgIBAgICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ"
"kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH"
"IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE"
"BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe"
"LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751"
"CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP"
"q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG"
"BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBLADBAEF";
// kBadSessionTrailingData is a custom serialized SSL_SESSION with trailing data
// appended.
static const char kBadSessionTrailingData[] =
"MIIBdgIBAQICAwMEAsAvBCAG5Q1ndq4Yfmbeo1zwLkNRKmCXGdNgWvGT3cskV0yQ"
"kAQwJlrlzkAWBOWiLj/jJ76D7l+UXoizP2KI2C7I2FccqMmIfFmmkUy32nIJ0mZH"
"IWoJoQYCBFRDO46iBAICASykAwQBAqUDAgEUphAEDnd3dy5nb29nbGUuY29tqAcE"
"BXdvcmxkqQUCAwGJwKqBpwSBpBwUQvoeOk0Kg36SYTcLEkXqKwOBfF9vE4KX0Nxe"
"LwjcDTpsuh3qXEaZ992r1N38VDcyS6P7I6HBYN9BsNHM362zZnY27GpTw+Kwd751"
"CLoXFPoaMOe57dbBpXoro6Pd3BTbf/Tzr88K06yEOTDKPNj3+inbMaVigtK4PLyP"
"q+Topyzvx9USFgRvyuoxn0Hgb+R0A3j6SLRuyOdAi4gv7Y5oliynrSIEIAYGBgYG"
"BgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGrgMEAQevAwQBBLADBAEFAAAA";
static bool DecodeBase64(std::vector<uint8_t> *out, const char *in) {
size_t len;
if (!EVP_DecodedLength(&len, strlen(in))) {
fprintf(stderr, "EVP_DecodedLength failed\n");
return false;
}
out->resize(len);
if (!EVP_DecodeBase64(out->data(), &len, len, (const uint8_t *)in,
strlen(in))) {
fprintf(stderr, "EVP_DecodeBase64 failed\n");
return false;
}
out->resize(len);
return true;
}
static bool TestSSL_SESSIONEncoding(const char *input_b64) {
const uint8_t *cptr;
uint8_t *ptr;
// Decode the input.
std::vector<uint8_t> input;
if (!DecodeBase64(&input, input_b64)) {
return false;
}
// Verify the SSL_SESSION decodes.
bssl::UniquePtr<SSL_SESSION> session(SSL_SESSION_from_bytes(input.data(), input.size()));
if (!session) {
fprintf(stderr, "SSL_SESSION_from_bytes failed\n");
return false;
}
// Verify the SSL_SESSION encoding round-trips.
size_t encoded_len;
bssl::UniquePtr<uint8_t> encoded;
uint8_t *encoded_raw;
if (!SSL_SESSION_to_bytes(session.get(), &encoded_raw, &encoded_len)) {
fprintf(stderr, "SSL_SESSION_to_bytes failed\n");
return false;
}
encoded.reset(encoded_raw);
if (encoded_len != input.size() ||
memcmp(input.data(), encoded.get(), input.size()) != 0) {
fprintf(stderr, "SSL_SESSION_to_bytes did not round-trip\n");
hexdump(stderr, "Before: ", input.data(), input.size());
hexdump(stderr, "After: ", encoded_raw, encoded_len);
return false;
}
// Verify the SSL_SESSION also decodes with the legacy API.
cptr = input.data();
session.reset(d2i_SSL_SESSION(NULL, &cptr, input.size()));
if (!session || cptr != input.data() + input.size()) {
fprintf(stderr, "d2i_SSL_SESSION failed\n");
return false;
}
// Verify the SSL_SESSION encoding round-trips via the legacy API.
int len = i2d_SSL_SESSION(session.get(), NULL);
if (len < 0 || (size_t)len != input.size()) {
fprintf(stderr, "i2d_SSL_SESSION(NULL) returned invalid length\n");
return false;
}
encoded.reset((uint8_t *)OPENSSL_malloc(input.size()));
if (!encoded) {
fprintf(stderr, "malloc failed\n");
return false;
}
ptr = encoded.get();
len = i2d_SSL_SESSION(session.get(), &ptr);
if (len < 0 || (size_t)len != input.size()) {
fprintf(stderr, "i2d_SSL_SESSION returned invalid length\n");
return false;
}
if (ptr != encoded.get() + input.size()) {
fprintf(stderr, "i2d_SSL_SESSION did not advance ptr correctly\n");
return false;
}
if (memcmp(input.data(), encoded.get(), input.size()) != 0) {
fprintf(stderr, "i2d_SSL_SESSION did not round-trip\n");
return false;
}
return true;
}
static bool TestBadSSL_SESSIONEncoding(const char *input_b64) {
std::vector<uint8_t> input;
if (!DecodeBase64(&input, input_b64)) {
return false;
}
// Verify that the SSL_SESSION fails to decode.
bssl::UniquePtr<SSL_SESSION> session(SSL_SESSION_from_bytes(input.data(), input.size()));
if (session) {
fprintf(stderr, "SSL_SESSION_from_bytes unexpectedly succeeded\n");
return false;
}
ERR_clear_error();
return true;
}
static bool TestDefaultVersion(uint16_t min_version, uint16_t max_version,
const SSL_METHOD *(*method)(void)) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(method()));
if (!ctx) {
return false;
}
if (ctx->min_version != min_version || ctx->max_version != max_version) {
fprintf(stderr, "Got min %04x, max %04x; wanted min %04x, max %04x\n",
ctx->min_version, ctx->max_version, min_version, max_version);
return false;
}
return true;
}
static bool CipherGetRFCName(std::string *out, uint16_t value) {
const SSL_CIPHER *cipher = SSL_get_cipher_by_value(value);
if (cipher == NULL) {
return false;
}
bssl::UniquePtr<char> rfc_name(SSL_CIPHER_get_rfc_name(cipher));
if (!rfc_name) {
return false;
}
out->assign(rfc_name.get());
return true;
}
typedef struct {
int id;
const char *rfc_name;
} CIPHER_RFC_NAME_TEST;
static const CIPHER_RFC_NAME_TEST kCipherRFCNameTests[] = {
{ SSL3_CK_RSA_DES_192_CBC3_SHA, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" },
{ TLS1_CK_RSA_WITH_AES_128_SHA, "TLS_RSA_WITH_AES_128_CBC_SHA" },
{ TLS1_CK_DHE_RSA_WITH_AES_256_SHA, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" },
{ TLS1_CK_DHE_RSA_WITH_AES_256_SHA256,
"TLS_DHE_RSA_WITH_AES_256_CBC_SHA256" },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_SHA256,
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" },
{ TLS1_CK_ECDHE_RSA_WITH_AES_256_SHA384,
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384" },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384" },
{ TLS1_CK_ECDHE_PSK_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" },
{ TLS1_CK_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
// These names are non-standard:
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD,
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305_OLD,
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" },
};
static bool TestCipherGetRFCName(void) {
for (size_t i = 0;
i < OPENSSL_ARRAY_SIZE(kCipherRFCNameTests); i++) {
const CIPHER_RFC_NAME_TEST *test = &kCipherRFCNameTests[i];
std::string rfc_name;
if (!CipherGetRFCName(&rfc_name, test->id & 0xffff)) {
fprintf(stderr, "SSL_CIPHER_get_rfc_name failed\n");
return false;
}
if (rfc_name != test->rfc_name) {
fprintf(stderr, "SSL_CIPHER_get_rfc_name: got '%s', wanted '%s'\n",
rfc_name.c_str(), test->rfc_name);
return false;
}
}
return true;
}
// CreateSessionWithTicket returns a sample |SSL_SESSION| with the ticket
// replaced for one of length |ticket_len| or nullptr on failure.
static bssl::UniquePtr<SSL_SESSION> CreateSessionWithTicket(size_t ticket_len) {
std::vector<uint8_t> der;
if (!DecodeBase64(&der, kOpenSSLSession)) {
return nullptr;
}
bssl::UniquePtr<SSL_SESSION> session(SSL_SESSION_from_bytes(der.data(), der.size()));
if (!session) {
return nullptr;
}
// Swap out the ticket for a garbage one.
OPENSSL_free(session->tlsext_tick);
session->tlsext_tick = reinterpret_cast<uint8_t*>(OPENSSL_malloc(ticket_len));
if (session->tlsext_tick == nullptr) {
return nullptr;
}
memset(session->tlsext_tick, 'a', ticket_len);
session->tlsext_ticklen = ticket_len;
// Fix up the timeout.
session->time = time(NULL);
return session;
}
static bool GetClientHello(SSL *ssl, std::vector<uint8_t> *out) {
bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_mem()));
if (!bio) {
return false;
}
// Do not configure a reading BIO, but record what's written to a memory BIO.
BIO_up_ref(bio.get());
SSL_set_bio(ssl, nullptr /* rbio */, bio.get());
int ret = SSL_connect(ssl);
if (ret > 0) {
// SSL_connect should fail without a BIO to write to.
return false;
}
ERR_clear_error();
const uint8_t *client_hello;
size_t client_hello_len;
if (!BIO_mem_contents(bio.get(), &client_hello, &client_hello_len)) {
return false;
}
*out = std::vector<uint8_t>(client_hello, client_hello + client_hello_len);
return true;
}
// GetClientHelloLen creates a client SSL connection with a ticket of length
// |ticket_len| and records the ClientHello. It returns the length of the
// ClientHello, not including the record header, on success and zero on error.
static size_t GetClientHelloLen(size_t ticket_len) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_SESSION> session = CreateSessionWithTicket(ticket_len);
if (!ctx || !session) {
return 0;
}
bssl::UniquePtr<SSL> ssl(SSL_new(ctx.get()));
if (!ssl || !SSL_set_session(ssl.get(), session.get())) {
return 0;
}
std::vector<uint8_t> client_hello;
if (!GetClientHello(ssl.get(), &client_hello) ||
client_hello.size() <= SSL3_RT_HEADER_LENGTH) {
return 0;
}
return client_hello.size() - SSL3_RT_HEADER_LENGTH;
}
struct PaddingTest {
size_t input_len, padded_len;
};
static const PaddingTest kPaddingTests[] = {
// ClientHellos of length below 0x100 do not require padding.
{0xfe, 0xfe},
{0xff, 0xff},
// ClientHellos of length 0x100 through 0x1fb are padded up to 0x200.
{0x100, 0x200},
{0x123, 0x200},
{0x1fb, 0x200},
// ClientHellos of length 0x1fc through 0x1ff get padded beyond 0x200. The
// padding extension takes a minimum of four bytes plus one required content
// byte. (To work around yet more server bugs, we avoid empty final
// extensions.)
{0x1fc, 0x201},
{0x1fd, 0x202},
{0x1fe, 0x203},
{0x1ff, 0x204},
// Finally, larger ClientHellos need no padding.
{0x200, 0x200},
{0x201, 0x201},
};
static bool TestPaddingExtension() {
// Sample a baseline length.
size_t base_len = GetClientHelloLen(1);
if (base_len == 0) {
return false;
}
for (const PaddingTest &test : kPaddingTests) {
if (base_len > test.input_len) {
fprintf(stderr, "Baseline ClientHello too long.\n");
return false;
}
size_t padded_len = GetClientHelloLen(1 + test.input_len - base_len);
if (padded_len != test.padded_len) {
fprintf(stderr, "%u-byte ClientHello padded to %u bytes, not %u.\n",
static_cast<unsigned>(test.input_len),
static_cast<unsigned>(padded_len),
static_cast<unsigned>(test.padded_len));
return false;
}
}
return true;
}
// Test that |SSL_get_client_CA_list| echoes back the configured parameter even
// before configuring as a server.
static bool TestClientCAList() {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
bssl::UniquePtr<SSL> ssl(SSL_new(ctx.get()));
if (!ssl) {
return false;
}
STACK_OF(X509_NAME) *stack = sk_X509_NAME_new_null();
if (stack == nullptr) {
return false;
}
// |SSL_set_client_CA_list| takes ownership.
SSL_set_client_CA_list(ssl.get(), stack);
return SSL_get_client_CA_list(ssl.get()) == stack;
}
static void AppendSession(SSL_SESSION *session, void *arg) {
std::vector<SSL_SESSION*> *out =
reinterpret_cast<std::vector<SSL_SESSION*>*>(arg);
out->push_back(session);
}
// ExpectCache returns true if |ctx|'s session cache consists of |expected|, in
// order.
static bool ExpectCache(SSL_CTX *ctx,
const std::vector<SSL_SESSION*> &expected) {
// Check the linked list.
SSL_SESSION *ptr = ctx->session_cache_head;
for (SSL_SESSION *session : expected) {
if (ptr != session) {
return false;
}
// TODO(davidben): This is an absurd way to denote the end of the list.
if (ptr->next ==
reinterpret_cast<SSL_SESSION *>(&ctx->session_cache_tail)) {
ptr = nullptr;
} else {
ptr = ptr->next;
}
}
if (ptr != nullptr) {
return false;
}
// Check the hash table.
std::vector<SSL_SESSION*> actual, expected_copy;
lh_SSL_SESSION_doall_arg(SSL_CTX_sessions(ctx), AppendSession, &actual);
expected_copy = expected;
std::sort(actual.begin(), actual.end());
std::sort(expected_copy.begin(), expected_copy.end());
return actual == expected_copy;
}
static bssl::UniquePtr<SSL_SESSION> CreateTestSession(uint32_t number) {
bssl::UniquePtr<SSL_SESSION> ret(SSL_SESSION_new());
if (!ret) {
return nullptr;
}
ret->session_id_length = SSL3_SSL_SESSION_ID_LENGTH;
memset(ret->session_id, 0, ret->session_id_length);
memcpy(ret->session_id, &number, sizeof(number));
return ret;
}
// Test that the internal session cache behaves as expected.
static bool TestInternalSessionCache() {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
// Prepare 10 test sessions.
std::vector<bssl::UniquePtr<SSL_SESSION>> sessions;
for (int i = 0; i < 10; i++) {
bssl::UniquePtr<SSL_SESSION> session = CreateTestSession(i);
if (!session) {
return false;
}
sessions.push_back(std::move(session));
}
SSL_CTX_sess_set_cache_size(ctx.get(), 5);
// Insert all the test sessions.
for (const auto &session : sessions) {
if (!SSL_CTX_add_session(ctx.get(), session.get())) {
return false;
}
}
// Only the last five should be in the list.
std::vector<SSL_SESSION*> expected = {
sessions[9].get(),
sessions[8].get(),
sessions[7].get(),
sessions[6].get(),
sessions[5].get(),
};
if (!ExpectCache(ctx.get(), expected)) {
return false;
}
// Inserting an element already in the cache should fail.
if (SSL_CTX_add_session(ctx.get(), sessions[7].get()) ||
!ExpectCache(ctx.get(), expected)) {
return false;
}
// Although collisions should be impossible (256-bit session IDs), the cache
// must handle them gracefully.
bssl::UniquePtr<SSL_SESSION> collision(CreateTestSession(7));
if (!collision || !SSL_CTX_add_session(ctx.get(), collision.get())) {
return false;
}
expected = {
collision.get(),
sessions[9].get(),
sessions[8].get(),
sessions[6].get(),
sessions[5].get(),
};
if (!ExpectCache(ctx.get(), expected)) {
return false;
}
// Removing sessions behaves correctly.
if (!SSL_CTX_remove_session(ctx.get(), sessions[6].get())) {
return false;
}
expected = {
collision.get(),
sessions[9].get(),
sessions[8].get(),
sessions[5].get(),
};
if (!ExpectCache(ctx.get(), expected)) {
return false;
}
// Removing sessions requires an exact match.
if (SSL_CTX_remove_session(ctx.get(), sessions[0].get()) ||
SSL_CTX_remove_session(ctx.get(), sessions[7].get()) ||
!ExpectCache(ctx.get(), expected)) {
return false;
}
return true;
}
static uint16_t EpochFromSequence(uint64_t seq) {
return static_cast<uint16_t>(seq >> 48);
}
static bssl::UniquePtr<X509> GetTestCertificate() {
static const char kCertPEM[] =
"-----BEGIN CERTIFICATE-----\n"
"MIICWDCCAcGgAwIBAgIJAPuwTC6rEJsMMA0GCSqGSIb3DQEBBQUAMEUxCzAJBgNV\n"
"BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX\n"
"aWRnaXRzIFB0eSBMdGQwHhcNMTQwNDIzMjA1MDQwWhcNMTcwNDIyMjA1MDQwWjBF\n"
"MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50\n"
"ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB\n"
"gQDYK8imMuRi/03z0K1Zi0WnvfFHvwlYeyK9Na6XJYaUoIDAtB92kWdGMdAQhLci\n"
"HnAjkXLI6W15OoV3gA/ElRZ1xUpxTMhjP6PyY5wqT5r6y8FxbiiFKKAnHmUcrgfV\n"
"W28tQ+0rkLGMryRtrukXOgXBv7gcrmU7G1jC2a7WqmeI8QIDAQABo1AwTjAdBgNV\n"
"HQ4EFgQUi3XVrMsIvg4fZbf6Vr5sp3Xaha8wHwYDVR0jBBgwFoAUi3XVrMsIvg4f\n"
"Zbf6Vr5sp3Xaha8wDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQUFAAOBgQA76Hht\n"
"ldY9avcTGSwbwoiuIqv0jTL1fHFnzy3RHMLDh+Lpvolc5DSrSJHCP5WuK0eeJXhr\n"
"T5oQpHL9z/cCDLAKCKRa4uV0fhEdOWBqyR9p8y5jJtye72t6CuFUV5iqcpF4BH4f\n"
"j2VNHwsSrJwkD4QUGlUtH7vwnQmyCFxZMmWAJg==\n"
"-----END CERTIFICATE-----\n";
bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(kCertPEM, strlen(kCertPEM)));
return bssl::UniquePtr<X509>(PEM_read_bio_X509(bio.get(), nullptr, nullptr, nullptr));
}
static bssl::UniquePtr<EVP_PKEY> GetTestKey() {
static const char kKeyPEM[] =
"-----BEGIN RSA PRIVATE KEY-----\n"
"MIICXgIBAAKBgQDYK8imMuRi/03z0K1Zi0WnvfFHvwlYeyK9Na6XJYaUoIDAtB92\n"
"kWdGMdAQhLciHnAjkXLI6W15OoV3gA/ElRZ1xUpxTMhjP6PyY5wqT5r6y8FxbiiF\n"
"KKAnHmUcrgfVW28tQ+0rkLGMryRtrukXOgXBv7gcrmU7G1jC2a7WqmeI8QIDAQAB\n"
"AoGBAIBy09Fd4DOq/Ijp8HeKuCMKTHqTW1xGHshLQ6jwVV2vWZIn9aIgmDsvkjCe\n"
"i6ssZvnbjVcwzSoByhjN8ZCf/i15HECWDFFh6gt0P5z0MnChwzZmvatV/FXCT0j+\n"
"WmGNB/gkehKjGXLLcjTb6dRYVJSCZhVuOLLcbWIV10gggJQBAkEA8S8sGe4ezyyZ\n"
"m4e9r95g6s43kPqtj5rewTsUxt+2n4eVodD+ZUlCULWVNAFLkYRTBCASlSrm9Xhj\n"
"QpmWAHJUkQJBAOVzQdFUaewLtdOJoPCtpYoY1zd22eae8TQEmpGOR11L6kbxLQsk\n"
"aMly/DOnOaa82tqAGTdqDEZgSNmCeKKknmECQAvpnY8GUOVAubGR6c+W90iBuQLj\n"
"LtFp/9ihd2w/PoDwrHZaoUYVcT4VSfJQog/k7kjE4MYXYWL8eEKg3WTWQNECQQDk\n"
"104Wi91Umd1PzF0ijd2jXOERJU1wEKe6XLkYYNHWQAe5l4J4MWj9OdxFXAxIuuR/\n"
"tfDwbqkta4xcux67//khAkEAvvRXLHTaa6VFzTaiiO8SaFsHV3lQyXOtMrBpB5jd\n"
"moZWgjHvB2W9Ckn7sDqsPB+U2tyX0joDdQEyuiMECDY8oQ==\n"
"-----END RSA PRIVATE KEY-----\n";
bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(kKeyPEM, strlen(kKeyPEM)));
return bssl::UniquePtr<EVP_PKEY>(
PEM_read_bio_PrivateKey(bio.get(), nullptr, nullptr, nullptr));
}
static bssl::UniquePtr<X509> GetECDSATestCertificate() {
static const char kCertPEM[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBzzCCAXagAwIBAgIJANlMBNpJfb/rMAkGByqGSM49BAEwRTELMAkGA1UEBhMC\n"
"QVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdp\n"
"dHMgUHR5IEx0ZDAeFw0xNDA0MjMyMzIxNTdaFw0xNDA1MjMyMzIxNTdaMEUxCzAJ\n"
"BgNVBAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5l\n"
"dCBXaWRnaXRzIFB0eSBMdGQwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATmK2ni\n"
"v2Wfl74vHg2UikzVl2u3qR4NRvvdqakendy6WgHn1peoChj5w8SjHlbifINI2xYa\n"
"HPUdfvGULUvPciLBo1AwTjAdBgNVHQ4EFgQUq4TSrKuV8IJOFngHVVdf5CaNgtEw\n"
"HwYDVR0jBBgwFoAUq4TSrKuV8IJOFngHVVdf5CaNgtEwDAYDVR0TBAUwAwEB/zAJ\n"
"BgcqhkjOPQQBA0gAMEUCIQDyoDVeUTo2w4J5m+4nUIWOcAZ0lVfSKXQA9L4Vh13E\n"
"BwIgfB55FGohg/B6dGh5XxSZmmi08cueFV7mHzJSYV51yRQ=\n"
"-----END CERTIFICATE-----\n";
bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(kCertPEM, strlen(kCertPEM)));
return bssl::UniquePtr<X509>(PEM_read_bio_X509(bio.get(), nullptr, nullptr, nullptr));
}
static bssl::UniquePtr<EVP_PKEY> GetECDSATestKey() {
static const char kKeyPEM[] =
"-----BEGIN PRIVATE KEY-----\n"
"MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgBw8IcnrUoEqc3VnJ\n"
"TYlodwi1b8ldMHcO6NHJzgqLtGqhRANCAATmK2niv2Wfl74vHg2UikzVl2u3qR4N\n"
"Rvvdqakendy6WgHn1peoChj5w8SjHlbifINI2xYaHPUdfvGULUvPciLB\n"
"-----END PRIVATE KEY-----\n";
bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(kKeyPEM, strlen(kKeyPEM)));
return bssl::UniquePtr<EVP_PKEY>(
PEM_read_bio_PrivateKey(bio.get(), nullptr, nullptr, nullptr));
}
static bool ConnectClientAndServer(bssl::UniquePtr<SSL> *out_client, bssl::UniquePtr<SSL> *out_server,
SSL_CTX *client_ctx, SSL_CTX *server_ctx,
SSL_SESSION *session) {
bssl::UniquePtr<SSL> client(SSL_new(client_ctx)), server(SSL_new(server_ctx));
if (!client || !server) {
return false;
}
SSL_set_connect_state(client.get());
SSL_set_accept_state(server.get());
SSL_set_session(client.get(), session);
BIO *bio1, *bio2;
if (!BIO_new_bio_pair(&bio1, 0, &bio2, 0)) {
return false;
}
// SSL_set_bio takes ownership.
SSL_set_bio(client.get(), bio1, bio1);
SSL_set_bio(server.get(), bio2, bio2);
// Drive both their handshakes to completion.
for (;;) {
int client_ret = SSL_do_handshake(client.get());
int client_err = SSL_get_error(client.get(), client_ret);
if (client_err != SSL_ERROR_NONE &&
client_err != SSL_ERROR_WANT_READ &&
client_err != SSL_ERROR_WANT_WRITE) {
fprintf(stderr, "Client error: %d\n", client_err);
return false;
}
int server_ret = SSL_do_handshake(server.get());
int server_err = SSL_get_error(server.get(), server_ret);
if (server_err != SSL_ERROR_NONE &&
server_err != SSL_ERROR_WANT_READ &&
server_err != SSL_ERROR_WANT_WRITE) {
fprintf(stderr, "Server error: %d\n", server_err);
return false;
}
if (client_ret == 1 && server_ret == 1) {
break;
}
}
*out_client = std::move(client);
*out_server = std::move(server);
return true;
}
static bool TestSequenceNumber(bool dtls) {
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(dtls ? DTLS_method() : TLS_method()));
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(dtls ? DTLS_method() : TLS_method()));
if (!client_ctx || !server_ctx) {
return false;
}
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get())) {
return false;
}
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx.get(),
server_ctx.get(), nullptr /* no session */)) {
return false;
}
uint64_t client_read_seq = SSL_get_read_sequence(client.get());
uint64_t client_write_seq = SSL_get_write_sequence(client.get());
uint64_t server_read_seq = SSL_get_read_sequence(server.get());
uint64_t server_write_seq = SSL_get_write_sequence(server.get());
if (dtls) {
// Both client and server must be at epoch 1.
if (EpochFromSequence(client_read_seq) != 1 ||
EpochFromSequence(client_write_seq) != 1 ||
EpochFromSequence(server_read_seq) != 1 ||
EpochFromSequence(server_write_seq) != 1) {
fprintf(stderr, "Bad epochs.\n");
return false;
}
// The next record to be written should exceed the largest received.
if (client_write_seq <= server_read_seq ||
server_write_seq <= client_read_seq) {
fprintf(stderr, "Inconsistent sequence numbers.\n");
return false;
}
} else {
// The next record to be written should equal the next to be received.
if (client_write_seq != server_read_seq ||
server_write_seq != client_write_seq) {
fprintf(stderr, "Inconsistent sequence numbers.\n");
return false;
}
}
// Send a record from client to server.
uint8_t byte = 0;
if (SSL_write(client.get(), &byte, 1) != 1 ||
SSL_read(server.get(), &byte, 1) != 1) {
fprintf(stderr, "Could not send byte.\n");
return false;
}
// The client write and server read sequence numbers should have incremented.
if (client_write_seq + 1 != SSL_get_write_sequence(client.get()) ||
server_read_seq + 1 != SSL_get_read_sequence(server.get())) {
fprintf(stderr, "Sequence numbers did not increment.\n");\
return false;
}
return true;
}
static bool TestOneSidedShutdown() {
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(TLS_method()));
if (!client_ctx || !server_ctx) {
return false;
}
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get())) {
return false;
}
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx.get(),
server_ctx.get(), nullptr /* no session */)) {
return false;
}
// Shut down half the connection. SSL_shutdown will return 0 to signal only
// one side has shut down.
if (SSL_shutdown(client.get()) != 0) {
fprintf(stderr, "Could not shutdown.\n");
return false;
}
// Reading from the server should consume the EOF.
uint8_t byte;
if (SSL_read(server.get(), &byte, 1) != 0 ||
SSL_get_error(server.get(), 0) != SSL_ERROR_ZERO_RETURN) {
fprintf(stderr, "Connection was not shut down cleanly.\n");
return false;
}
// However, the server may continue to write data and then shut down the
// connection.
byte = 42;
if (SSL_write(server.get(), &byte, 1) != 1 ||
SSL_read(client.get(), &byte, 1) != 1 ||
byte != 42) {
fprintf(stderr, "Could not send byte.\n");
return false;
}
// The server may then shutdown the connection.
if (SSL_shutdown(server.get()) != 1 ||
SSL_shutdown(client.get()) != 1) {
fprintf(stderr, "Could not complete shutdown.\n");
return false;
}
return true;
}
static bool TestSessionDuplication() {
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(TLS_method()));
if (!client_ctx || !server_ctx) {
return false;
}
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get())) {
return false;
}
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx.get(),
server_ctx.get(), nullptr /* no session */)) {
return false;
}
SSL_SESSION *session0 = SSL_get_session(client.get());
bssl::UniquePtr<SSL_SESSION> session1(SSL_SESSION_dup(session0, SSL_SESSION_DUP_ALL));
if (!session1) {
return false;
}
session1->not_resumable = 0;
uint8_t *s0_bytes, *s1_bytes;
size_t s0_len, s1_len;
if (!SSL_SESSION_to_bytes(session0, &s0_bytes, &s0_len)) {
return false;
}
bssl::UniquePtr<uint8_t> free_s0(s0_bytes);
if (!SSL_SESSION_to_bytes(session1.get(), &s1_bytes, &s1_len)) {
return false;
}
bssl::UniquePtr<uint8_t> free_s1(s1_bytes);
return s0_len == s1_len && memcmp(s0_bytes, s1_bytes, s0_len) == 0;
}
static bool ExpectFDs(const SSL *ssl, int rfd, int wfd) {
if (SSL_get_rfd(ssl) != rfd || SSL_get_wfd(ssl) != wfd) {
fprintf(stderr, "Got fds %d and %d, wanted %d and %d.\n", SSL_get_rfd(ssl),
SSL_get_wfd(ssl), rfd, wfd);
return false;
}
// The wrapper BIOs are always equal when fds are equal, even if set
// individually.
if (rfd == wfd && SSL_get_rbio(ssl) != SSL_get_wbio(ssl)) {
fprintf(stderr, "rbio and wbio did not match.\n");
return false;
}
return true;
}
static bool TestSetFD() {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
// Test setting different read and write FDs.
bssl::UniquePtr<SSL> ssl(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_rfd(ssl.get(), 1) ||
!SSL_set_wfd(ssl.get(), 2) ||
!ExpectFDs(ssl.get(), 1, 2)) {
return false;
}
// Test setting the same FD.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_fd(ssl.get(), 1) ||
!ExpectFDs(ssl.get(), 1, 1)) {
return false;
}
// Test setting the same FD one side at a time.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_rfd(ssl.get(), 1) ||
!SSL_set_wfd(ssl.get(), 1) ||
!ExpectFDs(ssl.get(), 1, 1)) {
return false;
}
// Test setting the same FD in the other order.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_wfd(ssl.get(), 1) ||
!SSL_set_rfd(ssl.get(), 1) ||
!ExpectFDs(ssl.get(), 1, 1)) {
return false;
}
// Test changing the read FD partway through.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_fd(ssl.get(), 1) ||
!SSL_set_rfd(ssl.get(), 2) ||
!ExpectFDs(ssl.get(), 2, 1)) {
return false;
}
// Test changing the write FD partway through.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_fd(ssl.get(), 1) ||
!SSL_set_wfd(ssl.get(), 2) ||
!ExpectFDs(ssl.get(), 1, 2)) {
return false;
}
// Test a no-op change to the read FD partway through.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_fd(ssl.get(), 1) ||
!SSL_set_rfd(ssl.get(), 1) ||
!ExpectFDs(ssl.get(), 1, 1)) {
return false;
}
// Test a no-op change to the write FD partway through.
ssl.reset(SSL_new(ctx.get()));
if (!ssl ||
!SSL_set_fd(ssl.get(), 1) ||
!SSL_set_wfd(ssl.get(), 1) ||
!ExpectFDs(ssl.get(), 1, 1)) {
return false;
}
// ASan builds will implicitly test that the internal |BIO| reference-counting
// is correct.
return true;
}
static bool TestSetBIO() {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
bssl::UniquePtr<SSL> ssl(SSL_new(ctx.get()));
bssl::UniquePtr<BIO> bio1(BIO_new(BIO_s_mem())), bio2(BIO_new(BIO_s_mem())),
bio3(BIO_new(BIO_s_mem()));
if (!ssl || !bio1 || !bio2 || !bio3) {
return false;
}
// SSL_set_bio takes one reference when the parameters are the same.
BIO_up_ref(bio1.get());
SSL_set_bio(ssl.get(), bio1.get(), bio1.get());
// Repeating the call does nothing.
SSL_set_bio(ssl.get(), bio1.get(), bio1.get());
// It takes one reference each when the parameters are different.
BIO_up_ref(bio2.get());
BIO_up_ref(bio3.get());
SSL_set_bio(ssl.get(), bio2.get(), bio3.get());
// Repeating the call does nothing.
SSL_set_bio(ssl.get(), bio2.get(), bio3.get());
// It takes one reference when changing only wbio.
BIO_up_ref(bio1.get());
SSL_set_bio(ssl.get(), bio2.get(), bio1.get());
// It takes one reference when changing only rbio and the two are different.
BIO_up_ref(bio3.get());
SSL_set_bio(ssl.get(), bio3.get(), bio1.get());
// If setting wbio to rbio, it takes no additional references.
SSL_set_bio(ssl.get(), bio3.get(), bio3.get());
// From there, wbio may be switched to something else.
BIO_up_ref(bio1.get());
SSL_set_bio(ssl.get(), bio3.get(), bio1.get());
// If setting rbio to wbio, it takes no additional references.
SSL_set_bio(ssl.get(), bio1.get(), bio1.get());
// From there, rbio may be switched to something else, but, for historical
// reasons, it takes a reference to both parameters.
BIO_up_ref(bio1.get());
BIO_up_ref(bio2.get());
SSL_set_bio(ssl.get(), bio2.get(), bio1.get());
// ASAN builds will implicitly test that the internal |BIO| reference-counting
// is correct.
return true;
}
static uint16_t kVersions[] = {
SSL3_VERSION, TLS1_VERSION, TLS1_1_VERSION, TLS1_2_VERSION, TLS1_3_VERSION,
};
static int VerifySucceed(X509_STORE_CTX *store_ctx, void *arg) { return 1; }
static bool TestGetPeerCertificate() {
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key) {
return false;
}
for (uint16_t version : kVersions) {
// Configure both client and server to accept any certificate.
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx ||
!SSL_CTX_use_certificate(ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(ctx.get(), key.get()) ||
!SSL_CTX_set_min_version(ctx.get(), version) ||
!SSL_CTX_set_max_version(ctx.get(), version)) {
return false;
}
SSL_CTX_set_verify(
ctx.get(), SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);
SSL_CTX_set_cert_verify_callback(ctx.get(), VerifySucceed, NULL);
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, ctx.get(), ctx.get(),
nullptr /* no session */)) {
return false;
}
// Client and server should both see the leaf certificate.
bssl::UniquePtr<X509> peer(SSL_get_peer_certificate(server.get()));
if (!peer || X509_cmp(cert.get(), peer.get()) != 0) {
fprintf(stderr, "%x: Server peer certificate did not match.\n", version);
return false;
}
peer.reset(SSL_get_peer_certificate(client.get()));
if (!peer || X509_cmp(cert.get(), peer.get()) != 0) {
fprintf(stderr, "%x: Client peer certificate did not match.\n", version);
return false;
}
// However, for historical reasons, the chain includes the leaf on the
// client, but does not on the server.
if (sk_X509_num(SSL_get_peer_cert_chain(client.get())) != 1) {
fprintf(stderr, "%x: Client peer chain was incorrect.\n", version);
return false;
}
if (sk_X509_num(SSL_get_peer_cert_chain(server.get())) != 0) {
fprintf(stderr, "%x: Server peer chain was incorrect.\n", version);
return false;
}
}
return true;
}
static bool TestRetainOnlySHA256OfCerts() {
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key) {
return false;
}
uint8_t *cert_der = NULL;
int cert_der_len = i2d_X509(cert.get(), &cert_der);
if (cert_der_len < 0) {
return false;
}
bssl::UniquePtr<uint8_t> free_cert_der(cert_der);
uint8_t cert_sha256[SHA256_DIGEST_LENGTH];
SHA256(cert_der, cert_der_len, cert_sha256);
for (uint16_t version : kVersions) {
// Configure both client and server to accept any certificate, but the
// server must retain only the SHA-256 of the peer.
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx ||
!SSL_CTX_use_certificate(ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(ctx.get(), key.get()) ||
!SSL_CTX_set_min_version(ctx.get(), version) ||
!SSL_CTX_set_max_version(ctx.get(), version)) {
return false;
}
SSL_CTX_set_verify(
ctx.get(), SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);
SSL_CTX_set_cert_verify_callback(ctx.get(), VerifySucceed, NULL);
SSL_CTX_set_retain_only_sha256_of_client_certs(ctx.get(), 1);
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, ctx.get(), ctx.get(),
nullptr /* no session */)) {
return false;
}
// The peer certificate has been dropped.
bssl::UniquePtr<X509> peer(SSL_get_peer_certificate(server.get()));
if (peer) {
fprintf(stderr, "%x: Peer certificate was retained.\n", version);
return false;
}
SSL_SESSION *session = SSL_get_session(server.get());
if (!session->peer_sha256_valid) {
fprintf(stderr, "%x: peer_sha256_valid was not set.\n", version);
return false;
}
if (memcmp(cert_sha256, session->peer_sha256, SHA256_DIGEST_LENGTH) != 0) {
fprintf(stderr, "%x: peer_sha256 did not match.\n", version);
return false;
}
}
return true;
}
static bool ClientHelloMatches(uint16_t version, const uint8_t *expected,
size_t expected_len) {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx ||
!SSL_CTX_set_max_version(ctx.get(), version) ||
// Our default cipher list varies by CPU capabilities, so manually place
// the ChaCha20 ciphers in front.
!SSL_CTX_set_cipher_list(ctx.get(), "CHACHA20:ALL")) {
return false;
}
bssl::UniquePtr<SSL> ssl(SSL_new(ctx.get()));
if (!ssl) {
return false;
}
std::vector<uint8_t> client_hello;
if (!GetClientHello(ssl.get(), &client_hello)) {
return false;
}
// Zero the client_random.
constexpr size_t kRandomOffset = 1 + 2 + 2 + // record header
1 + 3 + // handshake message header
2; // client_version
if (client_hello.size() < kRandomOffset + SSL3_RANDOM_SIZE) {
fprintf(stderr, "ClientHello for version %04x too short.\n", version);
return false;
}
memset(client_hello.data() + kRandomOffset, 0, SSL3_RANDOM_SIZE);
if (client_hello.size() != expected_len ||
memcmp(client_hello.data(), expected, expected_len) != 0) {
fprintf(stderr, "ClientHello for version %04x did not match:\n", version);
fprintf(stderr, "Got:\n\t");
for (size_t i = 0; i < client_hello.size(); i++) {
fprintf(stderr, "0x%02x, ", client_hello[i]);
}
fprintf(stderr, "\nWanted:\n\t");
for (size_t i = 0; i < expected_len; i++) {
fprintf(stderr, "0x%02x, ", expected[i]);
}
fprintf(stderr, "\n");
return false;
}
return true;
}
// Tests that our ClientHellos do not change unexpectedly.
static bool TestClientHello() {
static const uint8_t kSSL3ClientHello[] = {
0x16,
0x03, 0x00,
0x00, 0x3f,
0x01,
0x00, 0x00, 0x3b,
0x03, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00,
0x00, 0x14,
0xc0, 0x09,
0xc0, 0x13,
0x00, 0x33,
0xc0, 0x0a,
0xc0, 0x14,
0x00, 0x39,
0x00, 0x2f,
0x00, 0x35,
0x00, 0x0a,
0x00, 0xff, 0x01, 0x00,
};
if (!ClientHelloMatches(SSL3_VERSION, kSSL3ClientHello,
sizeof(kSSL3ClientHello))) {
return false;
}
static const uint8_t kTLS1ClientHello[] = {
0x16,
0x03, 0x01,
0x00, 0x5e,
0x01,
0x00, 0x00, 0x5a,
0x03, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00,
0x00, 0x12,
0xc0, 0x09,
0xc0, 0x13,
0x00, 0x33,
0xc0, 0x0a,
0xc0, 0x14,
0x00, 0x39,
0x00, 0x2f,
0x00, 0x35,
0x00, 0x0a,
0x01, 0x00, 0x00, 0x1f, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x17, 0x00,
0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00,
0x0a, 0x00, 0x08, 0x00, 0x06, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x18,
};
if (!ClientHelloMatches(TLS1_VERSION, kTLS1ClientHello,
sizeof(kTLS1ClientHello))) {
return false;
}
static const uint8_t kTLS11ClientHello[] = {
0x16,
0x03, 0x01,
0x00, 0x5e,
0x01,
0x00, 0x00, 0x5a,
0x03, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00,
0x00, 0x12,
0xc0, 0x09,
0xc0, 0x13,
0x00, 0x33,
0xc0, 0x0a,
0xc0, 0x14,
0x00, 0x39,
0x00, 0x2f,
0x00, 0x35,
0x00, 0x0a,
0x01, 0x00, 0x00, 0x1f, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x17, 0x00,
0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00,
0x0a, 0x00, 0x08, 0x00, 0x06, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x18,
};
if (!ClientHelloMatches(TLS1_1_VERSION, kTLS11ClientHello,
sizeof(kTLS11ClientHello))) {
return false;
}
static const uint8_t kTLS12ClientHello[] = {
0x16, 0x03, 0x01, 0x00, 0xa2, 0x01, 0x00, 0x00, 0x9e, 0x03, 0x03, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3a, 0xcc, 0xa9,
0xcc, 0xa8, 0xcc, 0x14, 0xcc, 0x13, 0xc0, 0x2b, 0xc0, 0x2f, 0x00, 0x9e,
0xc0, 0x2c, 0xc0, 0x30, 0x00, 0x9f, 0xc0, 0x09, 0xc0, 0x23, 0xc0, 0x13,
0xc0, 0x27, 0x00, 0x33, 0x00, 0x67, 0xc0, 0x0a, 0xc0, 0x24, 0xc0, 0x14,
0xc0, 0x28, 0x00, 0x39, 0x00, 0x6b, 0x00, 0x9c, 0x00, 0x9d, 0x00, 0x2f,
0x00, 0x3c, 0x00, 0x35, 0x00, 0x3d, 0x00, 0x0a, 0x01, 0x00, 0x00, 0x3b,
0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x17, 0x00, 0x00, 0x00, 0x23, 0x00,
0x00, 0x00, 0x0d, 0x00, 0x18, 0x00, 0x16, 0x07, 0x02, 0x06, 0x01, 0x06,
0x03, 0x07, 0x01, 0x05, 0x01, 0x05, 0x03, 0x07, 0x00, 0x04, 0x01, 0x04,
0x03, 0x02, 0x01, 0x02, 0x03, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00,
0x0a, 0x00, 0x08, 0x00, 0x06, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x18,
};
if (!ClientHelloMatches(TLS1_2_VERSION, kTLS12ClientHello,
sizeof(kTLS12ClientHello))) {
return false;
}
// TODO(davidben): Add a change detector for TLS 1.3 once the spec and our
// implementation has settled enough that it won't change.
return true;
}
static bssl::UniquePtr<SSL_SESSION> g_last_session;
static int SaveLastSession(SSL *ssl, SSL_SESSION *session) {
// Save the most recent session.
g_last_session.reset(session);
return 1;
}
static bssl::UniquePtr<SSL_SESSION> CreateClientSession(SSL_CTX *client_ctx,
SSL_CTX *server_ctx) {
g_last_session = nullptr;
SSL_CTX_sess_set_new_cb(client_ctx, SaveLastSession);
// Connect client and server to get a session.
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx, server_ctx,
nullptr /* no session */)) {
fprintf(stderr, "Failed to connect client and server.\n");
return nullptr;
}
// Run the read loop to account for post-handshake tickets in TLS 1.3.
SSL_read(client.get(), nullptr, 0);
SSL_CTX_sess_set_new_cb(client_ctx, nullptr);
if (!g_last_session) {
fprintf(stderr, "Client did not receive a session.\n");
return nullptr;
}
return std::move(g_last_session);
}
static bool ExpectSessionReused(SSL_CTX *client_ctx, SSL_CTX *server_ctx,
SSL_SESSION *session,
bool reused) {
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx,
server_ctx, session)) {
fprintf(stderr, "Failed to connect client and server.\n");
return false;
}
if (SSL_session_reused(client.get()) != SSL_session_reused(server.get())) {
fprintf(stderr, "Client and server were inconsistent.\n");
return false;
}
bool was_reused = !!SSL_session_reused(client.get());
if (was_reused != reused) {
fprintf(stderr, "Session was%s reused, but we expected the opposite.\n",
was_reused ? "" : " not");
return false;
}
return true;
}
static bool TestSessionIDContext() {
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key) {
return false;
}
static const uint8_t kContext1[] = {1};
static const uint8_t kContext2[] = {2};
for (uint16_t version : kVersions) {
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
if (!server_ctx || !client_ctx ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get()) ||
!SSL_CTX_set_session_id_context(server_ctx.get(), kContext1,
sizeof(kContext1)) ||
!SSL_CTX_set_min_version(client_ctx.get(), version) ||
!SSL_CTX_set_max_version(client_ctx.get(), version) ||
!SSL_CTX_set_min_version(server_ctx.get(), version) ||
!SSL_CTX_set_max_version(server_ctx.get(), version)) {
return false;
}
SSL_CTX_set_session_cache_mode(client_ctx.get(), SSL_SESS_CACHE_BOTH);
SSL_CTX_set_session_cache_mode(server_ctx.get(), SSL_SESS_CACHE_BOTH);
bssl::UniquePtr<SSL_SESSION> session =
CreateClientSession(client_ctx.get(), server_ctx.get());
if (!session) {
fprintf(stderr, "Error getting session (version = %04x).\n", version);
return false;
}
if (!ExpectSessionReused(client_ctx.get(), server_ctx.get(), session.get(),
true /* expect session reused */)) {
fprintf(stderr, "Error resuming session (version = %04x).\n", version);
return false;
}
// Change the session ID context.
if (!SSL_CTX_set_session_id_context(server_ctx.get(), kContext2,
sizeof(kContext2))) {
return false;
}
if (!ExpectSessionReused(client_ctx.get(), server_ctx.get(), session.get(),
false /* expect session not reused */)) {
fprintf(stderr,
"Error connection with different context (version = %04x).\n",
version);
return false;
}
}
return true;
}
static timeval g_current_time;
static void CurrentTimeCallback(const SSL *ssl, timeval *out_clock) {
*out_clock = g_current_time;
}
static bool TestSessionTimeout() {
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
if (!cert || !key) {
return false;
}
for (uint16_t version : kVersions) {
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
if (!server_ctx || !client_ctx ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get()) ||
!SSL_CTX_set_min_version(client_ctx.get(), version) ||
!SSL_CTX_set_max_version(client_ctx.get(), version) ||
!SSL_CTX_set_min_version(server_ctx.get(), version) ||
!SSL_CTX_set_max_version(server_ctx.get(), version)) {
return false;
}
SSL_CTX_set_session_cache_mode(client_ctx.get(), SSL_SESS_CACHE_BOTH);
SSL_CTX_set_session_cache_mode(server_ctx.get(), SSL_SESS_CACHE_BOTH);
SSL_CTX_set_current_time_cb(server_ctx.get(), CurrentTimeCallback);
bssl::UniquePtr<SSL_SESSION> session =
CreateClientSession(client_ctx.get(), server_ctx.get());
if (!session) {
fprintf(stderr, "Error getting session (version = %04x).\n", version);
return false;
}
// Advance the clock just behind the timeout.
g_current_time.tv_sec += SSL_DEFAULT_SESSION_TIMEOUT;
if (!ExpectSessionReused(client_ctx.get(), server_ctx.get(), session.get(),
true /* expect session reused */)) {
fprintf(stderr, "Error resuming session (version = %04x).\n", version);
return false;
}
// Advance the clock one more second.
g_current_time.tv_sec++;
if (!ExpectSessionReused(client_ctx.get(), server_ctx.get(), session.get(),
false /* expect session not reused */)) {
fprintf(stderr, "Error resuming session (version = %04x).\n", version);
return false;
}
}
return true;
}
static int SwitchContext(SSL *ssl, int *out_alert, void *arg) {
SSL_CTX *ctx = reinterpret_cast<SSL_CTX*>(arg);
SSL_set_SSL_CTX(ssl, ctx);
return SSL_TLSEXT_ERR_OK;
}
static bool TestSNICallback() {
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
bssl::UniquePtr<X509> cert2 = GetECDSATestCertificate();
bssl::UniquePtr<EVP_PKEY> key2 = GetECDSATestKey();
if (!cert || !key || !cert2 || !key2) {
return false;
}
// At each version, test that switching the |SSL_CTX| at the SNI callback
// behaves correctly.
for (uint16_t version : kVersions) {
if (version == SSL3_VERSION) {
continue;
}
static const uint16_t kECDSAWithSHA256 = SSL_SIGN_ECDSA_SECP256R1_SHA256;
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> server_ctx2(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
if (!server_ctx || !server_ctx2 || !client_ctx ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get()) ||
!SSL_CTX_use_certificate(server_ctx2.get(), cert2.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx2.get(), key2.get()) ||
// Historically signing preferences would be lost in some cases with the
// SNI callback, which triggers the TLS 1.2 SHA-1 default. To ensure
// this doesn't happen when |version| is TLS 1.2, configure the private
// key to only sign SHA-256.
!SSL_CTX_set_signing_algorithm_prefs(server_ctx2.get(),
&kECDSAWithSHA256, 1) ||
!SSL_CTX_set_min_version(client_ctx.get(), version) ||
!SSL_CTX_set_max_version(client_ctx.get(), version) ||
!SSL_CTX_set_min_version(server_ctx.get(), version) ||
!SSL_CTX_set_max_version(server_ctx.get(), version) ||
!SSL_CTX_set_min_version(server_ctx2.get(), version) ||
!SSL_CTX_set_max_version(server_ctx2.get(), version)) {
return false;
}
SSL_CTX_set_tlsext_servername_callback(server_ctx.get(), SwitchContext);
SSL_CTX_set_tlsext_servername_arg(server_ctx.get(), server_ctx2.get());
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx.get(),
server_ctx.get(), nullptr)) {
fprintf(stderr, "Handshake failed at version %04x.\n", version);
return false;
}
// The client should have received |cert2|.
bssl::UniquePtr<X509> peer(SSL_get_peer_certificate(client.get()));
if (!peer ||
X509_cmp(peer.get(), cert2.get()) != 0) {
fprintf(stderr, "Incorrect certificate received at version %04x.\n",
version);
return false;
}
}
return true;
}
static int SetMaxVersion(const struct ssl_early_callback_ctx *ctx) {
if (!SSL_set_max_version(ctx->ssl, TLS1_2_VERSION)) {
return -1;
}
return 1;
}
// TestEarlyCallbackVersionSwitch tests that the early callback can swap the
// maximum version.
static bool TestEarlyCallbackVersionSwitch() {
bssl::UniquePtr<X509> cert = GetTestCertificate();
bssl::UniquePtr<EVP_PKEY> key = GetTestKey();
bssl::UniquePtr<SSL_CTX> server_ctx(SSL_CTX_new(TLS_method()));
bssl::UniquePtr<SSL_CTX> client_ctx(SSL_CTX_new(TLS_method()));
if (!cert || !key || !server_ctx || !client_ctx ||
!SSL_CTX_use_certificate(server_ctx.get(), cert.get()) ||
!SSL_CTX_use_PrivateKey(server_ctx.get(), key.get()) ||
!SSL_CTX_set_max_version(client_ctx.get(), TLS1_3_VERSION) ||
!SSL_CTX_set_max_version(server_ctx.get(), TLS1_3_VERSION)) {
return false;
}
SSL_CTX_set_select_certificate_cb(server_ctx.get(), SetMaxVersion);
bssl::UniquePtr<SSL> client, server;
if (!ConnectClientAndServer(&client, &server, client_ctx.get(),
server_ctx.get(), nullptr)) {
return false;
}
if (SSL_version(client.get()) != TLS1_2_VERSION) {
fprintf(stderr, "Early callback failed to switch the maximum version.\n");
return false;
}
return true;
}
static bool TestSetVersion() {
bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
if (!SSL_CTX_set_max_version(ctx.get(), TLS1_VERSION) ||
!SSL_CTX_set_max_version(ctx.get(), TLS1_1_VERSION) ||
!SSL_CTX_set_min_version(ctx.get(), TLS1_VERSION) ||
!SSL_CTX_set_min_version(ctx.get(), TLS1_1_VERSION)) {
fprintf(stderr, "Could not set valid TLS version.\n");
return false;
}
if (SSL_CTX_set_max_version(ctx.get(), DTLS1_VERSION) ||
SSL_CTX_set_max_version(ctx.get(), 0x0200) ||
SSL_CTX_set_max_version(ctx.get(), 0x1234) ||
SSL_CTX_set_min_version(ctx.get(), DTLS1_VERSION) ||
SSL_CTX_set_min_version(ctx.get(), 0x0200) ||
SSL_CTX_set_min_version(ctx.get(), 0x1234)) {
fprintf(stderr, "Unexpectedly set invalid TLS version.\n");
return false;
}
ctx.reset(SSL_CTX_new(DTLS_method()));
if (!ctx) {
return false;
}
if (!SSL_CTX_set_max_version(ctx.get(), DTLS1_VERSION) ||
!SSL_CTX_set_max_version(ctx.get(), DTLS1_2_VERSION) ||
!SSL_CTX_set_min_version(ctx.get(), DTLS1_VERSION) ||
!SSL_CTX_set_min_version(ctx.get(), DTLS1_2_VERSION)) {
fprintf(stderr, "Could not set valid DTLS version.\n");
return false;
}
if (SSL_CTX_set_max_version(ctx.get(), TLS1_VERSION) ||
SSL_CTX_set_max_version(ctx.get(), 0xfefe /* DTLS 1.1 */) ||
SSL_CTX_set_max_version(ctx.get(), 0xfffe /* DTLS 0.1 */) ||
SSL_CTX_set_max_version(ctx.get(), 0x1234) ||
SSL_CTX_set_min_version(ctx.get(), TLS1_VERSION) ||
SSL_CTX_set_min_version(ctx.get(), 0xfefe /* DTLS 1.1 */) ||
SSL_CTX_set_min_version(ctx.get(), 0xfffe /* DTLS 0.1 */) ||
SSL_CTX_set_min_version(ctx.get(), 0x1234)) {
fprintf(stderr, "Unexpectedly set invalid DTLS version.\n");
return false;
}
return true;
}
int main() {
CRYPTO_library_init();
if (!TestCipherRules() ||
!TestSSL_SESSIONEncoding(kOpenSSLSession) ||
!TestSSL_SESSIONEncoding(kCustomSession) ||
!TestSSL_SESSIONEncoding(kBoringSSLSession) ||
!TestBadSSL_SESSIONEncoding(kBadSessionExtraField) ||
!TestBadSSL_SESSIONEncoding(kBadSessionVersion) ||
!TestBadSSL_SESSIONEncoding(kBadSessionTrailingData) ||
// TODO(svaldez): Update this when TLS 1.3 is enabled by default.
!TestDefaultVersion(SSL3_VERSION, TLS1_2_VERSION, &TLS_method) ||
!TestDefaultVersion(SSL3_VERSION, SSL3_VERSION, &SSLv3_method) ||
!TestDefaultVersion(TLS1_VERSION, TLS1_VERSION, &TLSv1_method) ||
!TestDefaultVersion(TLS1_1_VERSION, TLS1_1_VERSION, &TLSv1_1_method) ||
!TestDefaultVersion(TLS1_2_VERSION, TLS1_2_VERSION, &TLSv1_2_method) ||
!TestDefaultVersion(TLS1_1_VERSION, TLS1_2_VERSION, &DTLS_method) ||
!TestDefaultVersion(TLS1_1_VERSION, TLS1_1_VERSION, &DTLSv1_method) ||
!TestDefaultVersion(TLS1_2_VERSION, TLS1_2_VERSION, &DTLSv1_2_method) ||
!TestCipherGetRFCName() ||
!TestPaddingExtension() ||
!TestClientCAList() ||
!TestInternalSessionCache() ||
!TestSequenceNumber(false /* TLS */) ||
!TestSequenceNumber(true /* DTLS */) ||
!TestOneSidedShutdown() ||
!TestSessionDuplication() ||
!TestSetFD() ||
!TestSetBIO() ||
!TestGetPeerCertificate() ||
!TestRetainOnlySHA256OfCerts() ||
!TestClientHello() ||
!TestSessionIDContext() ||
!TestSessionTimeout() ||
!TestSNICallback() ||
!TestEarlyCallbackVersionSwitch() ||
!TestSetVersion()) {
ERR_print_errors_fp(stderr);
return 1;
}
printf("PASS\n");
return 0;
}
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