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boringssl/ssl/ssl_test.cc
David Benjamin 7a1eefd3cd Deprecate SSL_library_init. 
It just calls CRYPTO_library_init and doesn't do anything else. If
anything, I'd like to make CRYPTO_library_init completely go away too.
We have CRYPTO_once now, so I think it's safe to assume that, if ssl/
ever grows initialization needs beyond that of crypto/, we can hide it
behind a CRYPTO_once and not burden callers.

Change-Id: I63dc362e0e9e98deec5516f4620d1672151a91b6
Reviewed-on: https://boringssl-review.googlesource.com/6311
Reviewed-by: Adam Langley <alangley@gmail.com>
2015-10-26 18:36:23 +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 <string>
#include <vector>
#include <openssl/base64.h>
#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include "test/scoped_types.h"
#include "../crypto/test/test_util.h"
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, terminated with -1.
const ExpectedCipher *expected;
};
// Selecting individual ciphers should work.
static const char kRule1[] =
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256";
static const ExpectedCipher kExpected1[] = {
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 },
{ 0, 0 },
};
// + reorders selected ciphers to the end, keeping their relative
// order.
static const char kRule2[] =
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256:"
"+aRSA";
static const ExpectedCipher kExpected2[] = {
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 },
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 },
{ 0, 0 },
};
// ! banishes ciphers from future selections.
static const char kRule3[] =
"!aRSA:"
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256";
static const ExpectedCipher kExpected3[] = {
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 },
{ 0, 0 },
};
// Multiple masks can be ANDed in a single rule.
static const char kRule4[] = "kRSA+AESGCM+AES128";
static const ExpectedCipher kExpected4[] = {
{ TLS1_CK_RSA_WITH_AES_128_GCM_SHA256, 0 },
{ 0, 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.
static const char kRule5[] =
"ALL:-kECDHE:-kDHE:-kRSA:-ALL:"
"AESGCM+AES128+aRSA";
static const ExpectedCipher kExpected5[] = {
{ 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 },
{ 0, 0 },
};
// Unknown selectors are no-ops.
static const char kRule6[] =
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
"ECDHE-RSA-AES128-GCM-SHA256:"
"BOGUS1:-BOGUS2:+BOGUS3:!BOGUS4";
static const ExpectedCipher kExpected6[] = {
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 },
{ 0, 0 },
};
// Square brackets specify equi-preference groups.
static const char kRule7[] =
"[ECDHE-ECDSA-CHACHA20-POLY1305|ECDHE-ECDSA-AES128-GCM-SHA256]:"
"[ECDHE-RSA-CHACHA20-POLY1305]:"
"ECDHE-RSA-AES128-GCM-SHA256";
static const ExpectedCipher kExpected7[] = {
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 1 },
{ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 0 },
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 0 },
{ 0, 0 },
};
// @STRENGTH performs a stable strength-sort of the selected
// ciphers and only the selected ciphers.
static const char kRule8[] =
// To simplify things, banish all but {ECDHE_RSA,RSA} x
// {CHACHA20,AES_256_CBC,AES_128_CBC,RC4} x SHA1.
"!kEDH:!AESGCM:!3DES:!SHA256:!MD5:!SHA384:"
// Order some ciphers backwards by strength.
"ALL:-CHACHA20:-AES256:-AES128:-RC4:-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";
static const ExpectedCipher kExpected8[] = {
{ TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA, 0 },
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_RSA_WITH_RC4_128_SHA, 0 },
{ TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA, 0 },
{ SSL3_CK_RSA_RC4_128_SHA, 0 },
{ TLS1_CK_RSA_WITH_AES_128_SHA, 0 },
{ TLS1_CK_RSA_WITH_AES_256_SHA, 0 },
{ 0, 0 },
};
// Exact ciphers may not be used in multi-part rules; they are treated
// as unknown aliases.
static const char kRule9[] =
"ECDHE-ECDSA-CHACHA20-POLY1305:"
"ECDHE-RSA-CHACHA20-POLY1305:"
"!ECDHE-RSA-CHACHA20-POLY1305+RSA:"
"!ECDSA+ECDHE-ECDSA-CHACHA20-POLY1305";
static const ExpectedCipher kExpected9[] = {
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305, 0 },
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305, 0 },
{ 0, 0 },
};
static CipherTest kCipherTests[] = {
{ kRule1, kExpected1 },
{ kRule2, kExpected2 },
{ kRule3, kExpected3 },
{ kRule4, kExpected4 },
{ kRule5, kExpected5 },
{ kRule6, kExpected6 },
{ kRule7, kExpected7 },
{ kRule8, kExpected8 },
{ kRule9, kExpected9 },
{ NULL, NULL },
};
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",
NULL,
};
static const char *kMustNotIncludeNull[] = {
"ALL",
"DEFAULT",
"ALL:!eNULL",
"ALL:!NULL",
"FIPS",
"SHA",
"SHA1",
"RSA",
"SSLv3",
"TLSv1",
"TLSv1.2",
NULL
};
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(CipherTest *t) {
ScopedSSL_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.
size_t i;
for (i = 0; i < sk_SSL_CIPHER_num(ctx->cipher_list->ciphers); 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;
}
}
if (t->expected[i].id != 0) {
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) {
ScopedSSL_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 TestCipherRules() {
for (size_t i = 0; kCipherTests[i].rule != NULL; i++) {
if (!TestCipherRule(&kCipherTests[i])) {
return false;
}
}
for (size_t i = 0; kBadRules[i] != NULL; i++) {
ScopedSSL_CTX ctx(SSL_CTX_new(SSLv23_server_method()));
if (!ctx) {
return false;
}
if (SSL_CTX_set_cipher_list(ctx.get(), kBadRules[i])) {
fprintf(stderr, "Cipher rule '%s' unexpectedly succeeded\n", kBadRules[i]);
return false;
}
ERR_clear_error();
}
for (size_t i = 0; kMustNotIncludeNull[i] != NULL; i++) {
if (!TestRuleDoesNotIncludeNull(kMustNotIncludeNull[i])) {
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"
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"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"
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"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"
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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(bssl::vector_data(out), &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.
ScopedSSL_SESSION session(SSL_SESSION_from_bytes(bssl::vector_data(&input),
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;
ScopedOpenSSLBytes 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(bssl::vector_data(&input), 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 = bssl::vector_data(&input);
session.reset(d2i_SSL_SESSION(NULL, &cptr, input.size()));
if (!session || cptr != bssl::vector_data(&input) + 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(bssl::vector_data(&input), 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.
ScopedSSL_SESSION session(SSL_SESSION_from_bytes(bssl::vector_data(&input),
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 version,
const SSL_METHOD *(*method)(void)) {
ScopedSSL_CTX ctx(SSL_CTX_new(method()));
if (!ctx) {
return false;
}
return ctx->min_version == version && ctx->max_version == version;
}
static bool CipherGetRFCName(std::string *out, uint16_t value) {
const SSL_CIPHER *cipher = SSL_get_cipher_by_value(value);
if (cipher == NULL) {
return false;
}
ScopedOpenSSLString 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" },
{ SSL3_CK_RSA_RC4_128_MD5, "TLS_RSA_WITH_RC4_MD5" },
{ 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_PSK_WITH_RC4_128_SHA, "TLS_PSK_WITH_RC4_SHA" },
{ TLS1_CK_ECDHE_PSK_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" },
// These names are non-standard:
{ TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305,
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
{ TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305,
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" },
};
static bool TestCipherGetRFCName(void) {
for (size_t i = 0;
i < sizeof(kCipherRFCNameTests) / sizeof(kCipherRFCNameTests[0]); 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 ScopedSSL_SESSION CreateSessionWithTicket(size_t ticket_len) {
std::vector<uint8_t> der;
if (!DecodeBase64(&der, kOpenSSLSession)) {
return nullptr;
}
ScopedSSL_SESSION session(SSL_SESSION_from_bytes(bssl::vector_data(&der),
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;
return session;
}
// 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) {
ScopedSSL_CTX ctx(SSL_CTX_new(TLS_method()));
ScopedSSL_SESSION session = CreateSessionWithTicket(ticket_len);
if (!ctx || !session) {
return 0;
}
ScopedSSL ssl(SSL_new(ctx.get()));
ScopedBIO bio(BIO_new(BIO_s_mem()));
if (!ssl || !bio || !SSL_set_session(ssl.get(), session.get())) {
return 0;
}
// Do not configure a reading BIO, but record what's written to a memory BIO.
SSL_set_bio(ssl.get(), nullptr /* rbio */, BIO_up_ref(bio.get()));
int ret = SSL_connect(ssl.get());
if (ret > 0) {
// SSL_connect should fail without a BIO to write to.
return 0;
}
ERR_clear_error();
const uint8_t *unused;
size_t client_hello_len;
if (!BIO_mem_contents(bio.get(), &unused, &client_hello_len) ||
client_hello_len <= SSL3_RT_HEADER_LENGTH) {
return 0;
}
return client_hello_len - 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() {
ScopedSSL_CTX ctx(SSL_CTX_new(TLS_method()));
if (!ctx) {
return false;
}
ScopedSSL 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;
}
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) ||
!TestDefaultVersion(0, &TLS_method) ||
!TestDefaultVersion(SSL3_VERSION, &SSLv3_method) ||
!TestDefaultVersion(TLS1_VERSION, &TLSv1_method) ||
!TestDefaultVersion(TLS1_1_VERSION, &TLSv1_1_method) ||
!TestDefaultVersion(TLS1_2_VERSION, &TLSv1_2_method) ||
!TestDefaultVersion(0, &DTLS_method) ||
!TestDefaultVersion(DTLS1_VERSION, &DTLSv1_method) ||
!TestDefaultVersion(DTLS1_2_VERSION, &DTLSv1_2_method) ||
!TestCipherGetRFCName() ||
!TestPaddingExtension() ||
!TestClientCAList()) {
ERR_print_errors_fp(stderr);
return 1;
}
printf("PASS\n");
return 0;
}
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