/src/boringssl/ssl/ssl_cert.cc

Source (jump to first uncovered line)
// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
// Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <openssl/ssl.h>

#include <assert.h>
#include <limits.h>
#include <string.h>

#include <utility>

#include <openssl/bn.h>
#include <openssl/bytestring.h>
#include <openssl/ec_key.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/sha.h>
#include <openssl/x509.h>

#include "../crypto/internal.h"
#include "internal.h"


BSSL_NAMESPACE_BEGIN

CERT::CERT(const SSL_X509_METHOD *x509_method_arg)
    : legacy_credential(MakeUnique<SSL_CREDENTIAL>(SSLCredentialType::kX509)),
      x509_method(x509_method_arg) {}

CERT::~CERT() { x509_method->cert_free(this); }

UniquePtr<CERT> ssl_cert_dup(CERT *cert) {
  UniquePtr<CERT> ret = MakeUnique<CERT>(cert->x509_method);
  if (!ret) {
    return nullptr;
  }

  // TODO(crbug.com/boringssl/431): This should just be |CopyFrom|.
  for (const auto &cred : cert->credentials) {
    if (!ret->credentials.Push(UpRef(cred))) {
      return nullptr;
    }
  }

  // |legacy_credential| is mutable, so it must be copied. We cannot simply
  // bump the reference count.
  ret->legacy_credential = cert->legacy_credential->Dup();
  if (ret->legacy_credential == nullptr) {
    return nullptr;
  }

  ret->cert_cb = cert->cert_cb;
  ret->cert_cb_arg = cert->cert_cb_arg;

  ret->x509_method->cert_dup(ret.get(), cert);

  ret->sid_ctx = cert->sid_ctx;
  return ret;
}

static void ssl_cert_set_cert_cb(CERT *cert, int (*cb)(SSL *ssl, void *arg),
                                 void *arg) {
  cert->cert_cb = cb;
  cert->cert_cb_arg = arg;
}

static int cert_set_chain_and_key(
    CERT *cert, CRYPTO_BUFFER *const *certs, size_t num_certs,
    EVP_PKEY *privkey, const SSL_PRIVATE_KEY_METHOD *privkey_method) {
  if (num_certs == 0 ||  //
      (privkey == NULL && privkey_method == NULL)) {
    OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER);
    return 0;
  }

  if (privkey != NULL && privkey_method != NULL) {
    OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_HAVE_BOTH_PRIVKEY_AND_METHOD);
    return 0;
  }

  cert->legacy_credential->ClearCertAndKey();
  if (!SSL_CREDENTIAL_set1_cert_chain(cert->legacy_credential.get(), certs,
                                      num_certs)) {
    return 0;
  }

  cert->x509_method->cert_flush_cached_leaf(cert);
  cert->x509_method->cert_flush_cached_chain(cert);

  return privkey != nullptr
             ? SSL_CREDENTIAL_set1_private_key(cert->legacy_credential.get(),
                                               privkey)
             : SSL_CREDENTIAL_set_private_key_method(
                   cert->legacy_credential.get(), privkey_method);
}

bool ssl_set_cert(CERT *cert, UniquePtr<CRYPTO_BUFFER> buffer) {
  // Don't fail for a cert/key mismatch, just free the current private key.
  // (When switching to a different keypair, the caller should switch the
  // certificate, then the key.)
  if (!cert->legacy_credential->SetLeafCert(std::move(buffer),
                                            /*discard_key_on_mismatch=*/true)) {
    return false;
  }

  cert->x509_method->cert_flush_cached_leaf(cert);
  return true;
}

bool ssl_parse_cert_chain(uint8_t *out_alert,
                          UniquePtr<STACK_OF(CRYPTO_BUFFER)> *out_chain,
                          UniquePtr<EVP_PKEY> *out_pubkey,
                          uint8_t *out_leaf_sha256, CBS *cbs,
                          CRYPTO_BUFFER_POOL *pool) {
  out_chain->reset();
  out_pubkey->reset();

  CBS certificate_list;
  if (!CBS_get_u24_length_prefixed(cbs, &certificate_list)) {
    *out_alert = SSL_AD_DECODE_ERROR;
    OPENSSL_PUT_ERROR(SSL, SSL_R_DECODE_ERROR);
    return false;
  }

  if (CBS_len(&certificate_list) == 0) {
    return true;
  }

  UniquePtr<STACK_OF(CRYPTO_BUFFER)> chain(sk_CRYPTO_BUFFER_new_null());
  if (!chain) {
    *out_alert = SSL_AD_INTERNAL_ERROR;
    return false;
  }

  UniquePtr<EVP_PKEY> pubkey;
  while (CBS_len(&certificate_list) > 0) {
    CBS certificate;
    if (!CBS_get_u24_length_prefixed(&certificate_list, &certificate) ||
        CBS_len(&certificate) == 0) {
      *out_alert = SSL_AD_DECODE_ERROR;
      OPENSSL_PUT_ERROR(SSL, SSL_R_CERT_LENGTH_MISMATCH);
      return false;
    }

    if (sk_CRYPTO_BUFFER_num(chain.get()) == 0) {
      pubkey = ssl_cert_parse_pubkey(&certificate);
      if (!pubkey) {
        *out_alert = SSL_AD_DECODE_ERROR;
        return false;
      }

      // Retain the hash of the leaf certificate if requested.
      if (out_leaf_sha256 != NULL) {
        SHA256(CBS_data(&certificate), CBS_len(&certificate), out_leaf_sha256);
      }
    }

    UniquePtr<CRYPTO_BUFFER> buf(
        CRYPTO_BUFFER_new_from_CBS(&certificate, pool));
    if (!buf ||  //
        !PushToStack(chain.get(), std::move(buf))) {
      *out_alert = SSL_AD_INTERNAL_ERROR;
      return false;
    }
  }

  *out_chain = std::move(chain);
  *out_pubkey = std::move(pubkey);
  return true;
}

// ssl_cert_skip_to_spki parses a DER-encoded, X.509 certificate from |in| and
// positions |*out_tbs_cert| to cover the TBSCertificate, starting at the
// subjectPublicKeyInfo.
static bool ssl_cert_skip_to_spki(const CBS *in, CBS *out_tbs_cert) {
  /* From RFC 5280, section 4.1
   *    Certificate  ::=  SEQUENCE  {
   *      tbsCertificate       TBSCertificate,
   *      signatureAlgorithm   AlgorithmIdentifier,
   *      signatureValue       BIT STRING  }

   * TBSCertificate  ::=  SEQUENCE  {
   *      version         [0]  EXPLICIT Version DEFAULT v1,
   *      serialNumber         CertificateSerialNumber,
   *      signature            AlgorithmIdentifier,
   *      issuer               Name,
   *      validity             Validity,
   *      subject              Name,
   *      subjectPublicKeyInfo SubjectPublicKeyInfo,
   *      ... } */
  CBS buf = *in;

  CBS toplevel;
  if (!CBS_get_asn1(&buf, &toplevel, CBS_ASN1_SEQUENCE) ||          //
      CBS_len(&buf) != 0 ||                                         //
      !CBS_get_asn1(&toplevel, out_tbs_cert, CBS_ASN1_SEQUENCE) ||  //
      // version
      !CBS_get_optional_asn1(
          out_tbs_cert, NULL, NULL,
          CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 0) ||  //

      // serialNumber
      !CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_INTEGER) ||
      // signature algorithm
      !CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE) ||
      // issuer
      !CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE) ||
      // validity
      !CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE) ||
      // subject
      !CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE)) {
    return false;
  }

  return true;
}

bool ssl_cert_extract_issuer(const CBS *in, CBS *out_dn) {
  CBS buf = *in;

  CBS toplevel;
  CBS cert;
  if (!CBS_get_asn1(&buf, &toplevel, CBS_ASN1_SEQUENCE) ||   //
      CBS_len(&buf) != 0 ||                                  //
      !CBS_get_asn1(&toplevel, &cert, CBS_ASN1_SEQUENCE) ||  //
      // version
      !CBS_get_optional_asn1(
          &cert, NULL, NULL,
          CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 0) ||  //
      // serialNumber
      !CBS_get_asn1(&cert, NULL, CBS_ASN1_INTEGER) ||  //
      // signature algorithm
      !CBS_get_asn1(&cert, NULL, CBS_ASN1_SEQUENCE) ||  //
      // issuer
      !CBS_get_asn1_element(&cert, out_dn, CBS_ASN1_SEQUENCE)) {
    return false;
  }
  return true;
}

bool ssl_cert_matches_issuer(const CBS *in, const CBS *dn) {
  CBS issuer;

  if (!ssl_cert_extract_issuer(in, &issuer)) {
    return false;
  }
  return CBS_mem_equal(&issuer, CBS_data(dn), CBS_len(dn));
}

UniquePtr<EVP_PKEY> ssl_cert_parse_pubkey(const CBS *in) {
  CBS buf = *in, tbs_cert;
  if (!ssl_cert_skip_to_spki(&buf, &tbs_cert)) {
    OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
    return nullptr;
  }

  return UniquePtr<EVP_PKEY>(EVP_parse_public_key(&tbs_cert));
}

bool ssl_compare_public_and_private_key(const EVP_PKEY *pubkey,
                                        const EVP_PKEY *privkey) {
  if (EVP_PKEY_is_opaque(privkey)) {
    // We cannot check an opaque private key and have to trust that it
    // matches.
    return true;
  }

  switch (EVP_PKEY_cmp(pubkey, privkey)) {
    case 1:
      return true;
    case 0:
      OPENSSL_PUT_ERROR(X509, X509_R_KEY_VALUES_MISMATCH);
      return false;
    case -1:
      OPENSSL_PUT_ERROR(X509, X509_R_KEY_TYPE_MISMATCH);
      return false;
    case -2:
      OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_KEY_TYPE);
      return false;
  }

  assert(0);
  return false;
}

bool ssl_cert_check_key_usage(const CBS *in, enum ssl_key_usage_t bit) {
  CBS buf = *in;

  CBS tbs_cert, outer_extensions;
  int has_extensions;
  if (!ssl_cert_skip_to_spki(&buf, &tbs_cert) ||
      // subjectPublicKeyInfo
      !CBS_get_asn1(&tbs_cert, NULL, CBS_ASN1_SEQUENCE) ||
      // issuerUniqueID
      !CBS_get_optional_asn1(&tbs_cert, NULL, NULL,
                             CBS_ASN1_CONTEXT_SPECIFIC | 1) ||
      // subjectUniqueID
      !CBS_get_optional_asn1(&tbs_cert, NULL, NULL,
                             CBS_ASN1_CONTEXT_SPECIFIC | 2) ||
      !CBS_get_optional_asn1(
          &tbs_cert, &outer_extensions, &has_extensions,
          CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 3)) {
    OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
    return false;
  }

  if (!has_extensions) {
    return true;
  }

  CBS extensions;
  if (!CBS_get_asn1(&outer_extensions, &extensions, CBS_ASN1_SEQUENCE)) {
    OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
    return false;
  }

  while (CBS_len(&extensions) > 0) {
    CBS extension, oid, contents;
    if (!CBS_get_asn1(&extensions, &extension, CBS_ASN1_SEQUENCE) ||
        !CBS_get_asn1(&extension, &oid, CBS_ASN1_OBJECT) ||
        (CBS_peek_asn1_tag(&extension, CBS_ASN1_BOOLEAN) &&
         !CBS_get_asn1(&extension, NULL, CBS_ASN1_BOOLEAN)) ||
        !CBS_get_asn1(&extension, &contents, CBS_ASN1_OCTETSTRING) ||
        CBS_len(&extension) != 0) {
      OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
      return false;
    }

    static const uint8_t kKeyUsageOID[3] = {0x55, 0x1d, 0x0f};
    if (CBS_len(&oid) != sizeof(kKeyUsageOID) ||
        OPENSSL_memcmp(CBS_data(&oid), kKeyUsageOID, sizeof(kKeyUsageOID)) !=
            0) {
      continue;
    }

    CBS bit_string;
    if (!CBS_get_asn1(&contents, &bit_string, CBS_ASN1_BITSTRING) ||
        CBS_len(&contents) != 0) {
      OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
      return false;
    }

    // This is the KeyUsage extension. See
    // https://tools.ietf.org/html/rfc5280#section-4.2.1.3
    if (!CBS_is_valid_asn1_bitstring(&bit_string)) {
      OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
      return false;
    }

    if (!CBS_asn1_bitstring_has_bit(&bit_string, bit)) {
      OPENSSL_PUT_ERROR(SSL, SSL_R_KEY_USAGE_BIT_INCORRECT);
      return false;
    }

    return true;
  }

  // No KeyUsage extension found.
  return true;
}

UniquePtr<STACK_OF(CRYPTO_BUFFER)> SSL_parse_CA_list(SSL *ssl,
                                                     uint8_t *out_alert,
                                                     CBS *cbs) {
  CRYPTO_BUFFER_POOL *const pool = ssl->ctx->pool;

  UniquePtr<STACK_OF(CRYPTO_BUFFER)> ret(sk_CRYPTO_BUFFER_new_null());
  if (!ret) {
    *out_alert = SSL_AD_INTERNAL_ERROR;
    return nullptr;
  }

  CBS child;
  if (!CBS_get_u16_length_prefixed(cbs, &child)) {
    *out_alert = SSL_AD_DECODE_ERROR;
    OPENSSL_PUT_ERROR(SSL, SSL_R_LENGTH_MISMATCH);
    return nullptr;
  }

  while (CBS_len(&child) > 0) {
    CBS distinguished_name;
    if (!CBS_get_u16_length_prefixed(&child, &distinguished_name)) {
      *out_alert = SSL_AD_DECODE_ERROR;
      OPENSSL_PUT_ERROR(SSL, SSL_R_CA_DN_TOO_LONG);
      return nullptr;
    }

    UniquePtr<CRYPTO_BUFFER> buffer(
        CRYPTO_BUFFER_new_from_CBS(&distinguished_name, pool));
    if (!buffer ||  //
        !PushToStack(ret.get(), std::move(buffer))) {
      *out_alert = SSL_AD_INTERNAL_ERROR;
      return nullptr;
    }
  }

  if (!ssl->ctx->x509_method->check_CA_list(ret.get())) {
    *out_alert = SSL_AD_DECODE_ERROR;
    OPENSSL_PUT_ERROR(SSL, SSL_R_DECODE_ERROR);
    return nullptr;
  }

  return ret;
}

static bool CA_names_non_empty(const STACK_OF(CRYPTO_BUFFER) *config_names,
                               const STACK_OF(CRYPTO_BUFFER) *ctx_names) {
  if (config_names != nullptr) {
    return sk_CRYPTO_BUFFER_num(config_names) > 0;
  }
  if (ctx_names != nullptr) {
    return sk_CRYPTO_BUFFER_num(ctx_names) > 0;
  }
  return false;
}


static bool marshal_CA_names(const STACK_OF(CRYPTO_BUFFER) *config_names,
                             const STACK_OF(CRYPTO_BUFFER) *ctx_names,
                             CBB *cbb) {
  const STACK_OF(CRYPTO_BUFFER) *names =
      config_names == nullptr ? ctx_names : config_names;
  CBB child, name_cbb;

  if (!CBB_add_u16_length_prefixed(cbb, &child)) {
    return false;
  }

  if (names == nullptr) {
    return CBB_flush(cbb);
  }

  for (const CRYPTO_BUFFER *name : names) {
    if (!CBB_add_u16_length_prefixed(&child, &name_cbb) ||
        !CBB_add_bytes(&name_cbb, CRYPTO_BUFFER_data(name),
                       CRYPTO_BUFFER_len(name))) {
      return false;
    }
  }

  return CBB_flush(cbb);
}

bool ssl_has_client_CAs(const SSL_CONFIG *cfg) {
  return CA_names_non_empty(cfg->client_CA.get(),
                            cfg->ssl->ctx->client_CA.get());
}

bool ssl_has_CA_names(const SSL_CONFIG *cfg) {
  return CA_names_non_empty(cfg->CA_names.get(), cfg->ssl->ctx->CA_names.get());
}

bool ssl_add_client_CA_list(const SSL_HANDSHAKE *hs, CBB *cbb) {
  return marshal_CA_names(hs->config->client_CA.get(),
                          hs->ssl->ctx->client_CA.get(), cbb);
}

bool ssl_add_CA_names(const SSL_HANDSHAKE *hs, CBB *cbb) {
  return marshal_CA_names(hs->config->CA_names.get(),
                          hs->ssl->ctx->CA_names.get(), cbb);
}

bool ssl_check_leaf_certificate(SSL_HANDSHAKE *hs, EVP_PKEY *pkey,
                                const CRYPTO_BUFFER *leaf) {
  assert(ssl_protocol_version(hs->ssl) < TLS1_3_VERSION);

  // Check the certificate's type matches the cipher. This does not check key
  // usage restrictions, which are handled separately.
  //
  // TODO(davidben): Put the key type and key usage checks in one place.
  if (!(hs->new_cipher->algorithm_auth &
        ssl_cipher_auth_mask_for_key(pkey, /*sign_ok=*/true))) {
    OPENSSL_PUT_ERROR(SSL, SSL_R_WRONG_CERTIFICATE_TYPE);
    return false;
  }

  if (EVP_PKEY_id(pkey) == EVP_PKEY_EC) {
    // Check the key's group and point format are acceptable.
    EC_KEY *ec_key = EVP_PKEY_get0_EC_KEY(pkey);
    uint16_t group_id;
    if (!ssl_nid_to_group_id(
            &group_id, EC_GROUP_get_curve_name(EC_KEY_get0_group(ec_key))) ||
        !tls1_check_group_id(hs, group_id) ||
        EC_KEY_get_conv_form(ec_key) != POINT_CONVERSION_UNCOMPRESSED) {
      OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_ECC_CERT);
      return false;
    }
  }

  return true;
}

BSSL_NAMESPACE_END

using namespace bssl;

int SSL_set_chain_and_key(SSL *ssl, CRYPTO_BUFFER *const *certs,
                          size_t num_certs, EVP_PKEY *privkey,
                          const SSL_PRIVATE_KEY_METHOD *privkey_method) {
  if (!ssl->config) {
    return 0;
  }
  return cert_set_chain_and_key(ssl->config->cert.get(), certs, num_certs,
                                privkey, privkey_method);
}

int SSL_CTX_set_chain_and_key(SSL_CTX *ctx, CRYPTO_BUFFER *const *certs,
                              size_t num_certs, EVP_PKEY *privkey,
                              const SSL_PRIVATE_KEY_METHOD *privkey_method) {
  return cert_set_chain_and_key(ctx->cert.get(), certs, num_certs, privkey,
                                privkey_method);
}

void SSL_certs_clear(SSL *ssl) {
  if (!ssl->config) {
    return;
  }

  CERT *cert = ssl->config->cert.get();
  cert->x509_method->cert_clear(cert);
  cert->credentials.clear();
  cert->legacy_credential->ClearCertAndKey();
}

const STACK_OF(CRYPTO_BUFFER) *SSL_CTX_get0_chain(const SSL_CTX *ctx) {
  return ctx->cert->legacy_credential->chain.get();
}

const STACK_OF(CRYPTO_BUFFER) *SSL_get0_chain(const SSL *ssl) {
  if (!ssl->config) {
    return nullptr;
  }
  return ssl->config->cert->legacy_credential->chain.get();
}

int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, size_t der_len,
                                 const uint8_t *der) {
  UniquePtr<CRYPTO_BUFFER> buffer(CRYPTO_BUFFER_new(der, der_len, NULL));
  if (!buffer) {
    return 0;
  }

  return ssl_set_cert(ctx->cert.get(), std::move(buffer));
}

int SSL_use_certificate_ASN1(SSL *ssl, const uint8_t *der, size_t der_len) {
  UniquePtr<CRYPTO_BUFFER> buffer(CRYPTO_BUFFER_new(der, der_len, NULL));
  if (!buffer || !ssl->config) {
    return 0;
  }

  return ssl_set_cert(ssl->config->cert.get(), std::move(buffer));
}

void SSL_CTX_set_cert_cb(SSL_CTX *ctx, int (*cb)(SSL *ssl, void *arg),
                         void *arg) {
  ssl_cert_set_cert_cb(ctx->cert.get(), cb, arg);
}

void SSL_set_cert_cb(SSL *ssl, int (*cb)(SSL *ssl, void *arg), void *arg) {
  if (!ssl->config) {
    return;
  }
  ssl_cert_set_cert_cb(ssl->config->cert.get(), cb, arg);
}

const STACK_OF(CRYPTO_BUFFER) *SSL_get0_peer_certificates(const SSL *ssl) {
  SSL_SESSION *session = SSL_get_session(ssl);
  if (session == NULL) {
    return NULL;
  }

  return session->certs.get();
}

const STACK_OF(CRYPTO_BUFFER) *SSL_get0_server_requested_CAs(const SSL *ssl) {
  if (ssl->s3->hs == NULL) {
    return NULL;
  }
  return ssl->s3->hs->ca_names.get();
}

int SSL_CTX_set_signed_cert_timestamp_list(SSL_CTX *ctx, const uint8_t *list,
                                           size_t list_len) {
  UniquePtr<CRYPTO_BUFFER> buf(CRYPTO_BUFFER_new(list, list_len, nullptr));
  return buf != nullptr && SSL_CREDENTIAL_set1_signed_cert_timestamp_list(
                               ctx->cert->legacy_credential.get(), buf.get());
}

int SSL_set_signed_cert_timestamp_list(SSL *ssl, const uint8_t *list,
                                       size_t list_len) {
  if (!ssl->config) {
    return 0;
  }
  UniquePtr<CRYPTO_BUFFER> buf(CRYPTO_BUFFER_new(list, list_len, nullptr));
  return buf != nullptr &&
         SSL_CREDENTIAL_set1_signed_cert_timestamp_list(
             ssl->config->cert->legacy_credential.get(), buf.get());
}

int SSL_CTX_set_ocsp_response(SSL_CTX *ctx, const uint8_t *response,
                              size_t response_len) {
  UniquePtr<CRYPTO_BUFFER> buf(
      CRYPTO_BUFFER_new(response, response_len, nullptr));
  return buf != nullptr && SSL_CREDENTIAL_set1_ocsp_response(
                               ctx->cert->legacy_credential.get(), buf.get());
}

int SSL_set_ocsp_response(SSL *ssl, const uint8_t *response,
                          size_t response_len) {
  if (!ssl->config) {
    return 0;
  }
  UniquePtr<CRYPTO_BUFFER> buf(
      CRYPTO_BUFFER_new(response, response_len, nullptr));
  return buf != nullptr &&
         SSL_CREDENTIAL_set1_ocsp_response(
             ssl->config->cert->legacy_credential.get(), buf.get());
}

void SSL_CTX_set0_client_CAs(SSL_CTX *ctx, STACK_OF(CRYPTO_BUFFER) *name_list) {
  ctx->x509_method->ssl_ctx_flush_cached_client_CA(ctx);
  ctx->client_CA.reset(name_list);
}

void SSL_set0_client_CAs(SSL *ssl, STACK_OF(CRYPTO_BUFFER) *name_list) {
  if (!ssl->config) {
    return;
  }
  ssl->ctx->x509_method->ssl_flush_cached_client_CA(ssl->config.get());
  ssl->config->client_CA.reset(name_list);
}

void SSL_set0_CA_names(SSL *ssl, STACK_OF(CRYPTO_BUFFER) *name_list) {
  if (!ssl->config) {
    return;
  }
  ssl->config->CA_names.reset(name_list);
}

Coverage Report

Created: 2025-06-24 07:00

Line	Count	Source (jump to first uncovered line)
1		// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
2		// Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
3		//
4		// Licensed under the Apache License, Version 2.0 (the "License");
5		// you may not use this file except in compliance with the License.
6		// You may obtain a copy of the License at
7		//
8		// https://www.apache.org/licenses/LICENSE-2.0
9		//
10		// Unless required by applicable law or agreed to in writing, software
11		// distributed under the License is distributed on an "AS IS" BASIS,
12		// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		// See the License for the specific language governing permissions and
14		// limitations under the License.
15
16		#include <openssl/ssl.h>
17
18		#include <assert.h>
19		#include <limits.h>
20		#include <string.h>
21
22		#include <utility>
23
24		#include <openssl/bn.h>
25		#include <openssl/bytestring.h>
26		#include <openssl/ec_key.h>
27		#include <openssl/err.h>
28		#include <openssl/mem.h>
29		#include <openssl/sha.h>
30		#include <openssl/x509.h>
31
32		#include "../crypto/internal.h"
33		#include "internal.h"
34
35
36		BSSL_NAMESPACE_BEGIN
37
38		CERT::CERT(const SSL_X509_METHOD *x509_method_arg)
39	126k	: legacy_credential(MakeUnique<SSL_CREDENTIAL>(SSLCredentialType::kX509)),
40	126k	x509_method(x509_method_arg) {}
41
42	126k	CERT::~CERT() { x509_method->cert_free(this); }
43
44	121k	UniquePtr<CERT> ssl_cert_dup(CERT *cert) {
45	121k	UniquePtr<CERT> ret = MakeUnique<CERT>(cert->x509_method);
46	121k	if (!ret) {
47	0	return nullptr;
48	0	}
49
50		// TODO(crbug.com/boringssl/431): This should just be \|CopyFrom\|.
51	121k	for (const auto &cred : cert->credentials) {
52	0	if (!ret->credentials.Push(UpRef(cred))) {
53	0	return nullptr;
54	0	}
55	0	}
56
57		// \|legacy_credential\| is mutable, so it must be copied. We cannot simply
58		// bump the reference count.
59	121k	ret->legacy_credential = cert->legacy_credential->Dup();
60	121k	if (ret->legacy_credential == nullptr) {
61	0	return nullptr;
62	0	}
63
64	121k	ret->cert_cb = cert->cert_cb;
65	121k	ret->cert_cb_arg = cert->cert_cb_arg;
66
67	121k	ret->x509_method->cert_dup(ret.get(), cert);
68
69	121k	ret->sid_ctx = cert->sid_ctx;
70	121k	return ret;
71	121k	}
72
73		static void ssl_cert_set_cert_cb(CERT cert, int (cb)(SSL ssl, void arg),
74	0	void *arg) {
75	0	cert->cert_cb = cb;
76	0	cert->cert_cb_arg = arg;
77	0	}
78
79		static int cert_set_chain_and_key(
80		CERT cert, CRYPTO_BUFFER const *certs, size_t num_certs,
81	0	EVP_PKEY privkey, const SSL_PRIVATE_KEY_METHOD privkey_method) {
82	0	if (num_certs == 0 \|\| //
83	0	(privkey == NULL && privkey_method == NULL)) {
84	0	OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER);
85	0	return 0;
86	0	}
87
88	0	if (privkey != NULL && privkey_method != NULL) {
89	0	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_HAVE_BOTH_PRIVKEY_AND_METHOD);
90	0	return 0;
91	0	}
92
93	0	cert->legacy_credential->ClearCertAndKey();
94	0	if (!SSL_CREDENTIAL_set1_cert_chain(cert->legacy_credential.get(), certs,
95	0	num_certs)) {
96	0	return 0;
97	0	}
98
99	0	cert->x509_method->cert_flush_cached_leaf(cert);
100	0	cert->x509_method->cert_flush_cached_chain(cert);
101
102	0	return privkey != nullptr
103	0	? SSL_CREDENTIAL_set1_private_key(cert->legacy_credential.get(),
104	0	privkey)
105	0	: SSL_CREDENTIAL_set_private_key_method(
106	0	cert->legacy_credential.get(), privkey_method);
107	0	}
108
109	6.95k	bool ssl_set_cert(CERT *cert, UniquePtr<CRYPTO_BUFFER> buffer) {
110		// Don't fail for a cert/key mismatch, just free the current private key.
111		// (When switching to a different keypair, the caller should switch the
112		// certificate, then the key.)
113	6.95k	if (!cert->legacy_credential->SetLeafCert(std::move(buffer),
114	6.95k	/discard_key_on_mismatch=/true)) {
115	0	return false;
116	0	}
117
118	6.95k	cert->x509_method->cert_flush_cached_leaf(cert);
119	6.95k	return true;
120	6.95k	}
121
122		bool ssl_parse_cert_chain(uint8_t *out_alert,
123		UniquePtr<STACK_OF(CRYPTO_BUFFER)> *out_chain,
124		UniquePtr<EVP_PKEY> *out_pubkey,
125		uint8_t out_leaf_sha256, CBS cbs,
126	59.6k	CRYPTO_BUFFER_POOL *pool) {
127	59.6k	out_chain->reset();
128	59.6k	out_pubkey->reset();
129
130	59.6k	CBS certificate_list;
131	59.6k	if (!CBS_get_u24_length_prefixed(cbs, &certificate_list)) {
132	117	*out_alert = SSL_AD_DECODE_ERROR;
133	117	OPENSSL_PUT_ERROR(SSL, SSL_R_DECODE_ERROR);
134	117	return false;
135	117	}
136
137	59.5k	if (CBS_len(&certificate_list) == 0) {
138	53	return true;
139	53	}
140
141	59.4k	UniquePtr<STACK_OF(CRYPTO_BUFFER)> chain(sk_CRYPTO_BUFFER_new_null());
142	59.4k	if (!chain) {
143	0	*out_alert = SSL_AD_INTERNAL_ERROR;
144	0	return false;
145	0	}
146
147	59.4k	UniquePtr<EVP_PKEY> pubkey;
148	117k	while (CBS_len(&certificate_list) > 0) {
149	60.0k	CBS certificate;
150	60.0k	if (!CBS_get_u24_length_prefixed(&certificate_list, &certificate) \|\|
151	60.0k	CBS_len(&certificate) == 0) {
152	94	*out_alert = SSL_AD_DECODE_ERROR;
153	94	OPENSSL_PUT_ERROR(SSL, SSL_R_CERT_LENGTH_MISMATCH);
154	94	return false;
155	94	}
156
157	59.9k	if (sk_CRYPTO_BUFFER_num(chain.get()) == 0) {
158	59.4k	pubkey = ssl_cert_parse_pubkey(&certificate);
159	59.4k	if (!pubkey) {
160	1.84k	*out_alert = SSL_AD_DECODE_ERROR;
161	1.84k	return false;
162	1.84k	}
163
164		// Retain the hash of the leaf certificate if requested.
165	57.6k	if (out_leaf_sha256 != NULL) {
166	0	SHA256(CBS_data(&certificate), CBS_len(&certificate), out_leaf_sha256);
167	0	}
168	57.6k	}
169
170	58.0k	UniquePtr<CRYPTO_BUFFER> buf(
171	58.0k	CRYPTO_BUFFER_new_from_CBS(&certificate, pool));
172	58.0k	if (!buf \|\| //
173	58.0k	!PushToStack(chain.get(), std::move(buf))) {
174	0	*out_alert = SSL_AD_INTERNAL_ERROR;
175	0	return false;
176	0	}
177	58.0k	}
178
179	57.5k	*out_chain = std::move(chain);
180	57.5k	*out_pubkey = std::move(pubkey);
181	57.5k	return true;
182	59.4k	}
183
184		// ssl_cert_skip_to_spki parses a DER-encoded, X.509 certificate from \|in\| and
185		// positions \|*out_tbs_cert\| to cover the TBSCertificate, starting at the
186		// subjectPublicKeyInfo.
187	122k	static bool ssl_cert_skip_to_spki(const CBS in, CBS out_tbs_cert) {
188		/* From RFC 5280, section 4.1
189		* Certificate ::= SEQUENCE {
190		* tbsCertificate TBSCertificate,
191		* signatureAlgorithm AlgorithmIdentifier,
192		* signatureValue BIT STRING }
193
194		* TBSCertificate ::= SEQUENCE {
195		* version [0] EXPLICIT Version DEFAULT v1,
196		* serialNumber CertificateSerialNumber,
197		* signature AlgorithmIdentifier,
198		* issuer Name,
199		* validity Validity,
200		* subject Name,
201		* subjectPublicKeyInfo SubjectPublicKeyInfo,
202		* ... } */
203	122k	CBS buf = *in;
204
205	122k	CBS toplevel;
206	122k	if (!CBS_get_asn1(&buf, &toplevel, CBS_ASN1_SEQUENCE) \|\| //
207	122k	CBS_len(&buf) != 0 \|\| //
208	122k	!CBS_get_asn1(&toplevel, out_tbs_cert, CBS_ASN1_SEQUENCE) \|\| //
209		// version
210	122k	!CBS_get_optional_asn1(
211	122k	out_tbs_cert, NULL, NULL,
212	122k	CBS_ASN1_CONSTRUCTED \| CBS_ASN1_CONTEXT_SPECIFIC \| 0) \|\| //
213
214		// serialNumber
215	122k	!CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_INTEGER) \|\|
216		// signature algorithm
217	122k	!CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE) \|\|
218		// issuer
219	122k	!CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE) \|\|
220		// validity
221	122k	!CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE) \|\|
222		// subject
223	122k	!CBS_get_asn1(out_tbs_cert, NULL, CBS_ASN1_SEQUENCE)) {
224	145	return false;
225	145	}
226
227	121k	return true;
228	122k	}
229
230	0	bool ssl_cert_extract_issuer(const CBS in, CBS out_dn) {
231	0	CBS buf = *in;
232
233	0	CBS toplevel;
234	0	CBS cert;
235	0	if (!CBS_get_asn1(&buf, &toplevel, CBS_ASN1_SEQUENCE) \|\| //
236	0	CBS_len(&buf) != 0 \|\| //
237	0	!CBS_get_asn1(&toplevel, &cert, CBS_ASN1_SEQUENCE) \|\| //
238		// version
239	0	!CBS_get_optional_asn1(
240	0	&cert, NULL, NULL,
241	0	CBS_ASN1_CONSTRUCTED \| CBS_ASN1_CONTEXT_SPECIFIC \| 0) \|\| //
242		// serialNumber
243	0	!CBS_get_asn1(&cert, NULL, CBS_ASN1_INTEGER) \|\| //
244		// signature algorithm
245	0	!CBS_get_asn1(&cert, NULL, CBS_ASN1_SEQUENCE) \|\| //
246		// issuer
247	0	!CBS_get_asn1_element(&cert, out_dn, CBS_ASN1_SEQUENCE)) {
248	0	return false;
249	0	}
250	0	return true;
251	0	}
252
253	0	bool ssl_cert_matches_issuer(const CBS in, const CBS dn) {
254	0	CBS issuer;
255
256	0	if (!ssl_cert_extract_issuer(in, &issuer)) {
257	0	return false;
258	0	}
259	0	return CBS_mem_equal(&issuer, CBS_data(dn), CBS_len(dn));
260	0	}
261
262	67.9k	UniquePtr<EVP_PKEY> ssl_cert_parse_pubkey(const CBS *in) {
263	67.9k	CBS buf = *in, tbs_cert;
264	67.9k	if (!ssl_cert_skip_to_spki(&buf, &tbs_cert)) {
265	145	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
266	145	return nullptr;
267	145	}
268
269	67.8k	return UniquePtr<EVP_PKEY>(EVP_parse_public_key(&tbs_cert));
270	67.9k	}
271
272		bool ssl_compare_public_and_private_key(const EVP_PKEY *pubkey,
273	11.3k	const EVP_PKEY *privkey) {
274	11.3k	if (EVP_PKEY_is_opaque(privkey)) {
275		// We cannot check an opaque private key and have to trust that it
276		// matches.
277	0	return true;
278	0	}
279
280	11.3k	switch (EVP_PKEY_cmp(pubkey, privkey)) {
281	11.3k	case 1:
282	11.3k	return true;
283	0	case 0:
284	0	OPENSSL_PUT_ERROR(X509, X509_R_KEY_VALUES_MISMATCH);
285	0	return false;
286	0	case -1:
287	0	OPENSSL_PUT_ERROR(X509, X509_R_KEY_TYPE_MISMATCH);
288	0	return false;
289	0	case -2:
290	0	OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_KEY_TYPE);
291	0	return false;
292	11.3k	}
293
294	0	assert(0);
295	0	return false;
296	0	}
297
298	54.1k	bool ssl_cert_check_key_usage(const CBS *in, enum ssl_key_usage_t bit) {
299	54.1k	CBS buf = *in;
300
301	54.1k	CBS tbs_cert, outer_extensions;
302	54.1k	int has_extensions;
303	54.1k	if (!ssl_cert_skip_to_spki(&buf, &tbs_cert) \|\|
304		// subjectPublicKeyInfo
305	54.1k	!CBS_get_asn1(&tbs_cert, NULL, CBS_ASN1_SEQUENCE) \|\|
306		// issuerUniqueID
307	54.1k	!CBS_get_optional_asn1(&tbs_cert, NULL, NULL,
308	54.1k	CBS_ASN1_CONTEXT_SPECIFIC \| 1) \|\|
309		// subjectUniqueID
310	54.1k	!CBS_get_optional_asn1(&tbs_cert, NULL, NULL,
311	54.1k	CBS_ASN1_CONTEXT_SPECIFIC \| 2) \|\|
312	54.1k	!CBS_get_optional_asn1(
313	54.1k	&tbs_cert, &outer_extensions, &has_extensions,
314	54.1k	CBS_ASN1_CONSTRUCTED \| CBS_ASN1_CONTEXT_SPECIFIC \| 3)) {
315	15	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
316	15	return false;
317	15	}
318
319	54.1k	if (!has_extensions) {
320	204	return true;
321	204	}
322
323	53.9k	CBS extensions;
324	53.9k	if (!CBS_get_asn1(&outer_extensions, &extensions, CBS_ASN1_SEQUENCE)) {
325	7	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
326	7	return false;
327	7	}
328
329	213k	while (CBS_len(&extensions) > 0) {
330	159k	CBS extension, oid, contents;
331	159k	if (!CBS_get_asn1(&extensions, &extension, CBS_ASN1_SEQUENCE) \|\|
332	159k	!CBS_get_asn1(&extension, &oid, CBS_ASN1_OBJECT) \|\|
333	159k	(CBS_peek_asn1_tag(&extension, CBS_ASN1_BOOLEAN) &&
334	159k	!CBS_get_asn1(&extension, NULL, CBS_ASN1_BOOLEAN)) \|\|
335	159k	!CBS_get_asn1(&extension, &contents, CBS_ASN1_OCTETSTRING) \|\|
336	159k	CBS_len(&extension) != 0) {
337	41	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
338	41	return false;
339	41	}
340
341	159k	static const uint8_t kKeyUsageOID[3] = {0x55, 0x1d, 0x0f};
342	159k	if (CBS_len(&oid) != sizeof(kKeyUsageOID) \|\|
343	159k	OPENSSL_memcmp(CBS_data(&oid), kKeyUsageOID, sizeof(kKeyUsageOID)) !=
344	159k	0) {
345	159k	continue;
346	159k	}
347
348	551	CBS bit_string;
349	551	if (!CBS_get_asn1(&contents, &bit_string, CBS_ASN1_BITSTRING) \|\|
350	551	CBS_len(&contents) != 0) {
351	26	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
352	26	return false;
353	26	}
354
355		// This is the KeyUsage extension. See
356		// https://tools.ietf.org/html/rfc5280#section-4.2.1.3
357	525	if (!CBS_is_valid_asn1_bitstring(&bit_string)) {
358	18	OPENSSL_PUT_ERROR(SSL, SSL_R_CANNOT_PARSE_LEAF_CERT);
359	18	return false;
360	18	}
361
362	507	if (!CBS_asn1_bitstring_has_bit(&bit_string, bit)) {
363	10	OPENSSL_PUT_ERROR(SSL, SSL_R_KEY_USAGE_BIT_INCORRECT);
364	10	return false;
365	10	}
366
367	497	return true;
368	507	}
369
370		// No KeyUsage extension found.
371	53.3k	return true;
372	53.9k	}
373
374		UniquePtr<STACK_OF(CRYPTO_BUFFER)> SSL_parse_CA_list(SSL *ssl,
375		uint8_t *out_alert,
376	26.6k	CBS *cbs) {
377	26.6k	CRYPTO_BUFFER_POOL *const pool = ssl->ctx->pool;
378
379	26.6k	UniquePtr<STACK_OF(CRYPTO_BUFFER)> ret(sk_CRYPTO_BUFFER_new_null());
380	26.6k	if (!ret) {
381	0	*out_alert = SSL_AD_INTERNAL_ERROR;
382	0	return nullptr;
383	0	}
384
385	26.6k	CBS child;
386	26.6k	if (!CBS_get_u16_length_prefixed(cbs, &child)) {
387	25	*out_alert = SSL_AD_DECODE_ERROR;
388	25	OPENSSL_PUT_ERROR(SSL, SSL_R_LENGTH_MISMATCH);
389	25	return nullptr;
390	25	}
391
392	36.1k	while (CBS_len(&child) > 0) {
393	9.55k	CBS distinguished_name;
394	9.55k	if (!CBS_get_u16_length_prefixed(&child, &distinguished_name)) {
395	61	*out_alert = SSL_AD_DECODE_ERROR;
396	61	OPENSSL_PUT_ERROR(SSL, SSL_R_CA_DN_TOO_LONG);
397	61	return nullptr;
398	61	}
399
400	9.49k	UniquePtr<CRYPTO_BUFFER> buffer(
401	9.49k	CRYPTO_BUFFER_new_from_CBS(&distinguished_name, pool));
402	9.49k	if (!buffer \|\| //
403	9.49k	!PushToStack(ret.get(), std::move(buffer))) {
404	0	*out_alert = SSL_AD_INTERNAL_ERROR;
405	0	return nullptr;
406	0	}
407	9.49k	}
408
409	26.5k	if (!ssl->ctx->x509_method->check_CA_list(ret.get())) {
410	605	*out_alert = SSL_AD_DECODE_ERROR;
411	605	OPENSSL_PUT_ERROR(SSL, SSL_R_DECODE_ERROR);
412	605	return nullptr;
413	605	}
414
415	25.9k	return ret;
416	26.5k	}
417
418		static bool CA_names_non_empty(const STACK_OF(CRYPTO_BUFFER) *config_names,
419	65.0k	const STACK_OF(CRYPTO_BUFFER) *ctx_names) {
420	65.0k	if (config_names != nullptr) {
421	0	return sk_CRYPTO_BUFFER_num(config_names) > 0;
422	0	}
423	65.0k	if (ctx_names != nullptr) {
424	65.0k	return sk_CRYPTO_BUFFER_num(ctx_names) > 0;
425	65.0k	}
426	0	return false;
427	65.0k	}
428
429
430		static bool marshal_CA_names(const STACK_OF(CRYPTO_BUFFER) *config_names,
431		const STACK_OF(CRYPTO_BUFFER) *ctx_names,
432	4.03k	CBB *cbb) {
433	4.03k	const STACK_OF(CRYPTO_BUFFER) *names =
434	4.03k	config_names == nullptr ? ctx_names : config_names;
435	4.03k	CBB child, name_cbb;
436
437	4.03k	if (!CBB_add_u16_length_prefixed(cbb, &child)) {
438	0	return false;
439	0	}
440
441	4.03k	if (names == nullptr) {
442	0	return CBB_flush(cbb);
443	0	}
444
445	4.03k	for (const CRYPTO_BUFFER *name : names) {
446	0	if (!CBB_add_u16_length_prefixed(&child, &name_cbb) \|\|
447	0	!CBB_add_bytes(&name_cbb, CRYPTO_BUFFER_data(name),
448	0	CRYPTO_BUFFER_len(name))) {
449	0	return false;
450	0	}
451	0	}
452
453	4.03k	return CBB_flush(cbb);
454	4.03k	}
455
456	244	bool ssl_has_client_CAs(const SSL_CONFIG *cfg) {
457	244	return CA_names_non_empty(cfg->client_CA.get(),
458	244	cfg->ssl->ctx->client_CA.get());
459	244	}
460
461	64.7k	bool ssl_has_CA_names(const SSL_CONFIG *cfg) {
462	64.7k	return CA_names_non_empty(cfg->CA_names.get(), cfg->ssl->ctx->CA_names.get());
463	64.7k	}
464
465	4.03k	bool ssl_add_client_CA_list(const SSL_HANDSHAKE hs, CBB cbb) {
466	4.03k	return marshal_CA_names(hs->config->client_CA.get(),
467	4.03k	hs->ssl->ctx->client_CA.get(), cbb);
468	4.03k	}
469
470	0	bool ssl_add_CA_names(const SSL_HANDSHAKE hs, CBB cbb) {
471	0	return marshal_CA_names(hs->config->CA_names.get(),
472	0	hs->ssl->ctx->CA_names.get(), cbb);
473	0	}
474
475		bool ssl_check_leaf_certificate(SSL_HANDSHAKE hs, EVP_PKEY pkey,
476	53.0k	const CRYPTO_BUFFER *leaf) {
477	53.0k	assert(ssl_protocol_version(hs->ssl) < TLS1_3_VERSION);
478
479		// Check the certificate's type matches the cipher. This does not check key
480		// usage restrictions, which are handled separately.
481		//
482		// TODO(davidben): Put the key type and key usage checks in one place.
483	53.0k	if (!(hs->new_cipher->algorithm_auth &
484	53.0k	ssl_cipher_auth_mask_for_key(pkey, /sign_ok=/true))) {
485	8	OPENSSL_PUT_ERROR(SSL, SSL_R_WRONG_CERTIFICATE_TYPE);
486	8	return false;
487	8	}
488
489	53.0k	if (EVP_PKEY_id(pkey) == EVP_PKEY_EC) {
490		// Check the key's group and point format are acceptable.
491	14.7k	EC_KEY *ec_key = EVP_PKEY_get0_EC_KEY(pkey);
492	14.7k	uint16_t group_id;
493	14.7k	if (!ssl_nid_to_group_id(
494	14.7k	&group_id, EC_GROUP_get_curve_name(EC_KEY_get0_group(ec_key))) \|\|
495	14.7k	!tls1_check_group_id(hs, group_id) \|\|
496	14.7k	EC_KEY_get_conv_form(ec_key) != POINT_CONVERSION_UNCOMPRESSED) {
497	3	OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_ECC_CERT);
498	3	return false;
499	3	}
500	14.7k	}
501
502	53.0k	return true;
503	53.0k	}
504
505		BSSL_NAMESPACE_END
506
507		using namespace bssl;
508
509		int SSL_set_chain_and_key(SSL ssl, CRYPTO_BUFFER const *certs,
510		size_t num_certs, EVP_PKEY *privkey,
511	0	const SSL_PRIVATE_KEY_METHOD *privkey_method) {
512	0	if (!ssl->config) {
513	0	return 0;
514	0	}
515	0	return cert_set_chain_and_key(ssl->config->cert.get(), certs, num_certs,
516	0	privkey, privkey_method);
517	0	}
518
519		int SSL_CTX_set_chain_and_key(SSL_CTX ctx, CRYPTO_BUFFER const *certs,
520		size_t num_certs, EVP_PKEY *privkey,
521	0	const SSL_PRIVATE_KEY_METHOD *privkey_method) {
522	0	return cert_set_chain_and_key(ctx->cert.get(), certs, num_certs, privkey,
523	0	privkey_method);
524	0	}
525
526	0	void SSL_certs_clear(SSL *ssl) {
527	0	if (!ssl->config) {
528	0	return;
529	0	}
530
531	0	CERT *cert = ssl->config->cert.get();
532	0	cert->x509_method->cert_clear(cert);
533	0	cert->credentials.clear();
534	0	cert->legacy_credential->ClearCertAndKey();
535	0	}
536
537	0	const STACK_OF(CRYPTO_BUFFER) SSL_CTX_get0_chain(const SSL_CTX ctx) {
538	0	return ctx->cert->legacy_credential->chain.get();
539	0	}
540
541	0	const STACK_OF(CRYPTO_BUFFER) SSL_get0_chain(const SSL ssl) {
542	0	if (!ssl->config) {
543	0	return nullptr;
544	0	}
545	0	return ssl->config->cert->legacy_credential->chain.get();
546	0	}
547
548		int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, size_t der_len,
549	0	const uint8_t *der) {
550	0	UniquePtr<CRYPTO_BUFFER> buffer(CRYPTO_BUFFER_new(der, der_len, NULL));
551	0	if (!buffer) {
552	0	return 0;
553	0	}
554
555	0	return ssl_set_cert(ctx->cert.get(), std::move(buffer));
556	0	}
557
558	0	int SSL_use_certificate_ASN1(SSL ssl, const uint8_t der, size_t der_len) {
559	0	UniquePtr<CRYPTO_BUFFER> buffer(CRYPTO_BUFFER_new(der, der_len, NULL));
560	0	if (!buffer \|\| !ssl->config) {
561	0	return 0;
562	0	}
563
564	0	return ssl_set_cert(ssl->config->cert.get(), std::move(buffer));
565	0	}
566
567		void SSL_CTX_set_cert_cb(SSL_CTX ctx, int (cb)(SSL ssl, void arg),
568	0	void *arg) {
569	0	ssl_cert_set_cert_cb(ctx->cert.get(), cb, arg);
570	0	}
571
572	0	void SSL_set_cert_cb(SSL ssl, int (cb)(SSL ssl, void arg), void *arg) {
573	0	if (!ssl->config) {
574	0	return;
575	0	}
576	0	ssl_cert_set_cert_cb(ssl->config->cert.get(), cb, arg);
577	0	}
578
579	0	const STACK_OF(CRYPTO_BUFFER) SSL_get0_peer_certificates(const SSL ssl) {
580	0	SSL_SESSION *session = SSL_get_session(ssl);
581	0	if (session == NULL) {
582	0	return NULL;
583	0	}
584
585	0	return session->certs.get();
586	0	}
587
588	0	const STACK_OF(CRYPTO_BUFFER) SSL_get0_server_requested_CAs(const SSL ssl) {
589	0	if (ssl->s3->hs == NULL) {
590	0	return NULL;
591	0	}
592	0	return ssl->s3->hs->ca_names.get();
593	0	}
594
595		int SSL_CTX_set_signed_cert_timestamp_list(SSL_CTX ctx, const uint8_t list,
596	2.92k	size_t list_len) {
597	2.92k	UniquePtr<CRYPTO_BUFFER> buf(CRYPTO_BUFFER_new(list, list_len, nullptr));
598	2.92k	return buf != nullptr && SSL_CREDENTIAL_set1_signed_cert_timestamp_list(
599	2.92k	ctx->cert->legacy_credential.get(), buf.get());
600	2.92k	}
601
602		int SSL_set_signed_cert_timestamp_list(SSL ssl, const uint8_t list,
603	0	size_t list_len) {
604	0	if (!ssl->config) {
605	0	return 0;
606	0	}
607	0	UniquePtr<CRYPTO_BUFFER> buf(CRYPTO_BUFFER_new(list, list_len, nullptr));
608	0	return buf != nullptr &&
609	0	SSL_CREDENTIAL_set1_signed_cert_timestamp_list(
610	0	ssl->config->cert->legacy_credential.get(), buf.get());
611	0	}
612
613		int SSL_CTX_set_ocsp_response(SSL_CTX ctx, const uint8_t response,
614	20.2k	size_t response_len) {
615	20.2k	UniquePtr<CRYPTO_BUFFER> buf(
616	20.2k	CRYPTO_BUFFER_new(response, response_len, nullptr));
617	20.2k	return buf != nullptr && SSL_CREDENTIAL_set1_ocsp_response(
618	20.2k	ctx->cert->legacy_credential.get(), buf.get());
619	20.2k	}
620
621		int SSL_set_ocsp_response(SSL ssl, const uint8_t response,
622	0	size_t response_len) {
623	0	if (!ssl->config) {
624	0	return 0;
625	0	}
626	0	UniquePtr<CRYPTO_BUFFER> buf(
627	0	CRYPTO_BUFFER_new(response, response_len, nullptr));
628	0	return buf != nullptr &&
629	0	SSL_CREDENTIAL_set1_ocsp_response(
630	0	ssl->config->cert->legacy_credential.get(), buf.get());
631	0	}
632
633	0	void SSL_CTX_set0_client_CAs(SSL_CTX ctx, STACK_OF(CRYPTO_BUFFER) name_list) {
634	0	ctx->x509_method->ssl_ctx_flush_cached_client_CA(ctx);
635	0	ctx->client_CA.reset(name_list);
636	0	}
637
638	0	void SSL_set0_client_CAs(SSL ssl, STACK_OF(CRYPTO_BUFFER) name_list) {
639	0	if (!ssl->config) {
640	0	return;
641	0	}
642	0	ssl->ctx->x509_method->ssl_flush_cached_client_CA(ssl->config.get());
643	0	ssl->config->client_CA.reset(name_list);
644	0	}
645
646	0	void SSL_set0_CA_names(SSL ssl, STACK_OF(CRYPTO_BUFFER) name_list) {
647	0	if (!ssl->config) {
648	0	return;
649	0	}
650	0	ssl->config->CA_names.reset(name_list);
651	0	}