+
+#ifndef OPENSSL_NO_CT
+
+/*
+ * Moves SCTs from the |src| stack to the |dst| stack.
+ * The source of each SCT will be set to |origin|.
+ * If |dst| points to a NULL pointer, a new stack will be created and owned by
+ * the caller.
+ * Returns the number of SCTs moved, or a negative integer if an error occurs.
+ */
+static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
+ sct_source_t origin)
+{
+ int scts_moved = 0;
+ SCT *sct = NULL;
+
+ if (*dst == NULL) {
+ *dst = sk_SCT_new_null();
+ if (*dst == NULL) {
+ SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+
+ while ((sct = sk_SCT_pop(src)) != NULL) {
+ if (SCT_set_source(sct, origin) != 1)
+ goto err;
+
+ if (sk_SCT_push(*dst, sct) <= 0)
+ goto err;
+ scts_moved += 1;
+ }
+
+ return scts_moved;
+ err:
+ if (sct != NULL)
+ sk_SCT_push(src, sct); /* Put the SCT back */
+ return -1;
+}
+
+/*
+ * Look for data collected during ServerHello and parse if found.
+ * Returns the number of SCTs extracted.
+ */
+static int ct_extract_tls_extension_scts(SSL *s)
+{
+ int scts_extracted = 0;
+
+ if (s->ext.scts != NULL) {
+ const unsigned char *p = s->ext.scts;
+ STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
+
+ scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
+
+ SCT_LIST_free(scts);
+ }
+
+ return scts_extracted;
+}
+
+/*
+ * Checks for an OCSP response and then attempts to extract any SCTs found if it
+ * contains an SCT X509 extension. They will be stored in |s->scts|.
+ * Returns:
+ * - The number of SCTs extracted, assuming an OCSP response exists.
+ * - 0 if no OCSP response exists or it contains no SCTs.
+ * - A negative integer if an error occurs.
+ */
+static int ct_extract_ocsp_response_scts(SSL *s)
+{
+# ifndef OPENSSL_NO_OCSP
+ int scts_extracted = 0;
+ const unsigned char *p;
+ OCSP_BASICRESP *br = NULL;
+ OCSP_RESPONSE *rsp = NULL;
+ STACK_OF(SCT) *scts = NULL;
+ int i;
+
+ if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
+ goto err;
+
+ p = s->ext.ocsp.resp;
+ rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
+ if (rsp == NULL)
+ goto err;
+
+ br = OCSP_response_get1_basic(rsp);
+ if (br == NULL)
+ goto err;
+
+ for (i = 0; i < OCSP_resp_count(br); ++i) {
+ OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
+
+ if (single == NULL)
+ continue;
+
+ scts =
+ OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
+ scts_extracted =
+ ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
+ if (scts_extracted < 0)
+ goto err;
+ }
+ err:
+ SCT_LIST_free(scts);
+ OCSP_BASICRESP_free(br);
+ OCSP_RESPONSE_free(rsp);
+ return scts_extracted;
+# else
+ /* Behave as if no OCSP response exists */
+ return 0;
+# endif
+}
+
+/*
+ * Attempts to extract SCTs from the peer certificate.
+ * Return the number of SCTs extracted, or a negative integer if an error
+ * occurs.
+ */
+static int ct_extract_x509v3_extension_scts(SSL *s)
+{
+ int scts_extracted = 0;
+ X509 *cert = s->session != NULL ? s->session->peer : NULL;
+
+ if (cert != NULL) {
+ STACK_OF(SCT) *scts =
+ X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
+
+ scts_extracted =
+ ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
+
+ SCT_LIST_free(scts);
+ }
+
+ return scts_extracted;
+}
+
+/*
+ * Attempts to find all received SCTs by checking TLS extensions, the OCSP
+ * response (if it exists) and X509v3 extensions in the certificate.
+ * Returns NULL if an error occurs.
+ */
+const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
+{
+ if (!s->scts_parsed) {
+ if (ct_extract_tls_extension_scts(s) < 0 ||
+ ct_extract_ocsp_response_scts(s) < 0 ||
+ ct_extract_x509v3_extension_scts(s) < 0)
+ goto err;
+
+ s->scts_parsed = 1;
+ }
+ return s->scts;
+ err:
+ return NULL;
+}
+
+static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
+ const STACK_OF(SCT) *scts, void *unused_arg)
+{
+ return 1;
+}
+
+static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
+ const STACK_OF(SCT) *scts, void *unused_arg)
+{
+ int count = scts != NULL ? sk_SCT_num(scts) : 0;
+ int i;
+
+ for (i = 0; i < count; ++i) {
+ SCT *sct = sk_SCT_value(scts, i);
+ int status = SCT_get_validation_status(sct);
+
+ if (status == SCT_VALIDATION_STATUS_VALID)
+ return 1;
+ }
+ SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
+ return 0;
+}
+
+int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
+ void *arg)
+{
+ /*
+ * Since code exists that uses the custom extension handler for CT, look
+ * for this and throw an error if they have already registered to use CT.
+ */
+ if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
+ TLSEXT_TYPE_signed_certificate_timestamp))
+ {
+ SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
+ SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
+ return 0;
+ }
+
+ if (callback != NULL) {
+ /*
+ * If we are validating CT, then we MUST accept SCTs served via OCSP
+ */
+ if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
+ return 0;
+ }
+
+ s->ct_validation_callback = callback;
+ s->ct_validation_callback_arg = arg;
+
+ return 1;
+}
+
+int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
+ ssl_ct_validation_cb callback, void *arg)
+{
+ /*
+ * Since code exists that uses the custom extension handler for CT, look for
+ * this and throw an error if they have already registered to use CT.
+ */
+ if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
+ TLSEXT_TYPE_signed_certificate_timestamp))
+ {
+ SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
+ SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
+ return 0;
+ }
+
+ ctx->ct_validation_callback = callback;
+ ctx->ct_validation_callback_arg = arg;
+ return 1;
+}
+
+int SSL_ct_is_enabled(const SSL *s)
+{
+ return s->ct_validation_callback != NULL;
+}
+
+int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
+{
+ return ctx->ct_validation_callback != NULL;
+}
+
+int ssl_validate_ct(SSL *s)
+{
+ int ret = 0;
+ X509 *cert = s->session != NULL ? s->session->peer : NULL;
+ X509 *issuer;
+ SSL_DANE *dane = &s->dane;
+ CT_POLICY_EVAL_CTX *ctx = NULL;
+ const STACK_OF(SCT) *scts;
+
+ /*
+ * If no callback is set, the peer is anonymous, or its chain is invalid,
+ * skip SCT validation - just return success. Applications that continue
+ * handshakes without certificates, with unverified chains, or pinned leaf
+ * certificates are outside the scope of the WebPKI and CT.
+ *
+ * The above exclusions notwithstanding the vast majority of peers will
+ * have rather ordinary certificate chains validated by typical
+ * applications that perform certificate verification and therefore will
+ * process SCTs when enabled.
+ */
+ if (s->ct_validation_callback == NULL || cert == NULL ||
+ s->verify_result != X509_V_OK ||
+ s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
+ return 1;
+
+ /*
+ * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
+ * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
+ */
+ if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
+ switch (dane->mtlsa->usage) {
+ case DANETLS_USAGE_DANE_TA:
+ case DANETLS_USAGE_DANE_EE:
+ return 1;
+ }
+ }
+
+ ctx = CT_POLICY_EVAL_CTX_new();
+ if (ctx == NULL) {
+ SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+
+ issuer = sk_X509_value(s->verified_chain, 1);
+ CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
+ CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
+ CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
+ CT_POLICY_EVAL_CTX_set_time(ctx, SSL_SESSION_get_time(SSL_get0_session(s)));
+
+ scts = SSL_get0_peer_scts(s);
+
+ /*
+ * This function returns success (> 0) only when all the SCTs are valid, 0
+ * when some are invalid, and < 0 on various internal errors (out of
+ * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
+ * reason to abort the handshake, that decision is up to the callback.
+ * Therefore, we error out only in the unexpected case that the return
+ * value is negative.
+ *
+ * XXX: One might well argue that the return value of this function is an
+ * unfortunate design choice. Its job is only to determine the validation
+ * status of each of the provided SCTs. So long as it correctly separates
+ * the wheat from the chaff it should return success. Failure in this case
+ * ought to correspond to an inability to carry out its duties.
+ */
+ if (SCT_LIST_validate(scts, ctx) < 0) {
+ SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED);
+ goto end;
+ }
+
+ ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
+ if (ret < 0)
+ ret = 0; /* This function returns 0 on failure */
+
+ end:
+ CT_POLICY_EVAL_CTX_free(ctx);
+ /*
+ * With SSL_VERIFY_NONE the session may be cached and re-used despite a
+ * failure return code here. Also the application may wish the complete
+ * the handshake, and then disconnect cleanly at a higher layer, after
+ * checking the verification status of the completed connection.
+ *
+ * We therefore force a certificate verification failure which will be
+ * visible via SSL_get_verify_result() and cached as part of any resumed
+ * session.
+ *
+ * Note: the permissive callback is for information gathering only, always
+ * returns success, and does not affect verification status. Only the
+ * strict callback or a custom application-specified callback can trigger
+ * connection failure or record a verification error.
+ */
+ if (ret <= 0)
+ s->verify_result = X509_V_ERR_NO_VALID_SCTS;
+ return ret;
+}
+
+int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
+{
+ switch (validation_mode) {
+ default:
+ SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
+ return 0;
+ case SSL_CT_VALIDATION_PERMISSIVE:
+ return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
+ case SSL_CT_VALIDATION_STRICT:
+ return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
+ }
+}
+
+int SSL_enable_ct(SSL *s, int validation_mode)
+{
+ switch (validation_mode) {
+ default:
+ SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
+ return 0;
+ case SSL_CT_VALIDATION_PERMISSIVE:
+ return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
+ case SSL_CT_VALIDATION_STRICT:
+ return SSL_set_ct_validation_callback(s, ct_strict, NULL);
+ }
+}
+
+int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
+{
+ return CTLOG_STORE_load_default_file(ctx->ctlog_store);
+}
+
+int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
+{
+ return CTLOG_STORE_load_file(ctx->ctlog_store, path);
+}
+
+void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
+{
+ CTLOG_STORE_free(ctx->ctlog_store);
+ ctx->ctlog_store = logs;
+}
+
+const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
+{
+ return ctx->ctlog_store;
+}
+
+#endif /* OPENSSL_NO_CT */
+
+void SSL_CTX_set_early_cb(SSL_CTX *c, SSL_early_cb_fn cb, void *arg)
+{
+ c->early_cb = cb;
+ c->early_cb_arg = arg;
+}
+
+int SSL_early_isv2(SSL *s)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ return s->clienthello->isv2;
+}
+
+unsigned int SSL_early_get0_legacy_version(SSL *s)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ return s->clienthello->legacy_version;
+}
+
+size_t SSL_early_get0_random(SSL *s, const unsigned char **out)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ if (out != NULL)
+ *out = s->clienthello->random;
+ return SSL3_RANDOM_SIZE;
+}
+
+size_t SSL_early_get0_session_id(SSL *s, const unsigned char **out)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ if (out != NULL)
+ *out = s->clienthello->session_id;
+ return s->clienthello->session_id_len;
+}
+
+size_t SSL_early_get0_ciphers(SSL *s, const unsigned char **out)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ if (out != NULL)
+ *out = PACKET_data(&s->clienthello->ciphersuites);
+ return PACKET_remaining(&s->clienthello->ciphersuites);
+}
+
+size_t SSL_early_get0_compression_methods(SSL *s, const unsigned char **out)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ if (out != NULL)
+ *out = s->clienthello->compressions;
+ return s->clienthello->compressions_len;
+}
+
+int SSL_early_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
+ size_t *outlen)
+{
+ size_t i;
+ RAW_EXTENSION *r;
+
+ if (s->clienthello == NULL)
+ return 0;
+ for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
+ r = s->clienthello->pre_proc_exts + i;
+ if (r->present && r->type == type) {
+ if (out != NULL)
+ *out = PACKET_data(&r->data);
+ if (outlen != NULL)
+ *outlen = PACKET_remaining(&r->data);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
+{
+ ctx->keylog_callback = cb;
+}
+
+SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
+{
+ return ctx->keylog_callback;
+}
+
+static int nss_keylog_int(const char *prefix,
+ SSL *ssl,
+ const uint8_t *parameter_1,
+ size_t parameter_1_len,
+ const uint8_t *parameter_2,
+ size_t parameter_2_len)
+{
+ char *out = NULL;
+ char *cursor = NULL;
+ size_t out_len = 0;
+ size_t i;
+ size_t prefix_len;
+
+ if (ssl->ctx->keylog_callback == NULL) return 1;
+
+ /*
+ * Our output buffer will contain the following strings, rendered with
+ * space characters in between, terminated by a NULL character: first the
+ * prefix, then the first parameter, then the second parameter. The
+ * meaning of each parameter depends on the specific key material being
+ * logged. Note that the first and second parameters are encoded in
+ * hexadecimal, so we need a buffer that is twice their lengths.
+ */
+ prefix_len = strlen(prefix);
+ out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3;
+ if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
+ SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ strcpy(cursor, prefix);
+ cursor += prefix_len;
+ *cursor++ = ' ';
+
+ for (i = 0; i < parameter_1_len; i++) {
+ sprintf(cursor, "%02x", parameter_1[i]);
+ cursor += 2;
+ }
+ *cursor++ = ' ';
+
+ for (i = 0; i < parameter_2_len; i++) {
+ sprintf(cursor, "%02x", parameter_2[i]);
+ cursor += 2;
+ }
+ *cursor = '\0';
+
+ ssl->ctx->keylog_callback(ssl, (const char *)out);
+ OPENSSL_free(out);
+ return 1;
+
+}
+
+int ssl_log_rsa_client_key_exchange(SSL *ssl,
+ const uint8_t *encrypted_premaster,
+ size_t encrypted_premaster_len,
+ const uint8_t *premaster,
+ size_t premaster_len)
+{
+ if (encrypted_premaster_len < 8) {
+ SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ /* We only want the first 8 bytes of the encrypted premaster as a tag. */
+ return nss_keylog_int("RSA",
+ ssl,
+ encrypted_premaster,
+ 8,
+ premaster,
+ premaster_len);
+}
+
+int ssl_log_secret(SSL *ssl,
+ const char *label,
+ const uint8_t *secret,
+ size_t secret_len)
+{
+ return nss_keylog_int(label,
+ ssl,
+ ssl->s3->client_random,
+ SSL3_RANDOM_SIZE,
+ secret,
+ secret_len);
+}
+
+#define SSLV2_CIPHER_LEN 3
+
+int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format,
+ int *al)
+{
+ int n;
+
+ n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
+
+ if (PACKET_remaining(cipher_suites) == 0) {
+ SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED);
+ *al = SSL_AD_ILLEGAL_PARAMETER;
+ return 0;
+ }
+
+ if (PACKET_remaining(cipher_suites) % n != 0) {
+ SSLerr(SSL_F_SSL_CACHE_CIPHERLIST,
+ SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+
+ OPENSSL_free(s->s3->tmp.ciphers_raw);
+ s->s3->tmp.ciphers_raw = NULL;
+ s->s3->tmp.ciphers_rawlen = 0;
+
+ if (sslv2format) {
+ size_t numciphers = PACKET_remaining(cipher_suites) / n;
+ PACKET sslv2ciphers = *cipher_suites;
+ unsigned int leadbyte;
+ unsigned char *raw;
+
+ /*
+ * We store the raw ciphers list in SSLv3+ format so we need to do some
+ * preprocessing to convert the list first. If there are any SSLv2 only
+ * ciphersuites with a non-zero leading byte then we are going to
+ * slightly over allocate because we won't store those. But that isn't a
+ * problem.
+ */
+ raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
+ s->s3->tmp.ciphers_raw = raw;
+ if (raw == NULL) {
+ *al = SSL_AD_INTERNAL_ERROR;
+ goto err;
+ }
+ for (s->s3->tmp.ciphers_rawlen = 0;
+ PACKET_remaining(&sslv2ciphers) > 0;
+ raw += TLS_CIPHER_LEN) {
+ if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
+ || (leadbyte == 0
+ && !PACKET_copy_bytes(&sslv2ciphers, raw,
+ TLS_CIPHER_LEN))
+ || (leadbyte != 0
+ && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
+ *al = SSL_AD_INTERNAL_ERROR;
+ OPENSSL_free(s->s3->tmp.ciphers_raw);
+ s->s3->tmp.ciphers_raw = NULL;
+ s->s3->tmp.ciphers_rawlen = 0;
+ goto err;
+ }
+ if (leadbyte == 0)
+ s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN;
+ }
+ } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw,
+ &s->s3->tmp.ciphers_rawlen)) {
+ *al = SSL_AD_INTERNAL_ERROR;
+ goto err;
+ }
+ return 1;
+ err:
+ return 0;
+}
+
+int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
+ int isv2format, STACK_OF(SSL_CIPHER) **sk,
+ STACK_OF(SSL_CIPHER) **scsvs)
+{
+ int alert;
+ PACKET pkt;
+
+ if (!PACKET_buf_init(&pkt, bytes, len))
+ return 0;
+ return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert);
+}
+
+int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
+ STACK_OF(SSL_CIPHER) **skp,
+ STACK_OF(SSL_CIPHER) **scsvs_out,
+ int sslv2format, int *al)
+{
+ const SSL_CIPHER *c;
+ STACK_OF(SSL_CIPHER) *sk = NULL;
+ STACK_OF(SSL_CIPHER) *scsvs = NULL;
+ int n;
+ /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
+ unsigned char cipher[SSLV2_CIPHER_LEN];
+
+ n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
+
+ if (PACKET_remaining(cipher_suites) == 0) {
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
+ *al = SSL_AD_ILLEGAL_PARAMETER;
+ return 0;
+ }
+
+ if (PACKET_remaining(cipher_suites) % n != 0) {
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
+ SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+
+ sk = sk_SSL_CIPHER_new_null();
+ scsvs = sk_SSL_CIPHER_new_null();
+ if (sk == NULL || scsvs == NULL) {
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
+ *al = SSL_AD_INTERNAL_ERROR;
+ goto err;
+ }
+
+ while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
+ /*
+ * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
+ * first byte set to zero, while true SSLv2 ciphers have a non-zero
+ * first byte. We don't support any true SSLv2 ciphers, so skip them.
+ */
+ if (sslv2format && cipher[0] != '\0')
+ continue;
+
+ /* For SSLv2-compat, ignore leading 0-byte. */
+ c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
+ if (c != NULL) {
+ if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
+ (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
+ *al = SSL_AD_INTERNAL_ERROR;
+ goto err;
+ }
+ }
+ }
+ if (PACKET_remaining(cipher_suites) > 0) {
+ *al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if (skp != NULL)
+ *skp = sk;
+ else
+ sk_SSL_CIPHER_free(sk);
+ if (scsvs_out != NULL)
+ *scsvs_out = scsvs;
+ else
+ sk_SSL_CIPHER_free(scsvs);
+ return 1;
+ err:
+ sk_SSL_CIPHER_free(sk);
+ sk_SSL_CIPHER_free(scsvs);
+ return 0;
+}
+
+int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
+{
+ ctx->max_early_data = max_early_data;
+
+ return 1;
+}
+
+uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
+{
+ return ctx->max_early_data;
+}
+
+int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
+{
+ s->max_early_data = max_early_data;
+
+ return 1;
+}
+
+uint32_t SSL_get_max_early_data(const SSL_CTX *s)
+{
+ return s->max_early_data;
+}