[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/lib/libssl/openssl-1.1.1o/ssl/ssl_lib.c b/ap/lib/libssl/openssl-1.1.1o/ssl/ssl_lib.c
new file mode 100644
index 0000000..47adc32
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/ssl/ssl_lib.c
@@ -0,0 +1,5709 @@
+/*
+ * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
+ * Copyright 2005 Nokia. All rights reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "ssl_local.h"
+#include <openssl/objects.h>
+#include <openssl/x509v3.h>
+#include <openssl/rand.h>
+#include <openssl/rand_drbg.h>
+#include <openssl/ocsp.h>
+#include <openssl/dh.h>
+#include <openssl/engine.h>
+#include <openssl/async.h>
+#include <openssl/ct.h>
+#include "internal/cryptlib.h"
+#include "internal/refcount.h"
+
+const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
+
+static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t)
+{
+ (void)r;
+ (void)s;
+ (void)t;
+ return ssl_undefined_function(ssl);
+}
+
+static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s,
+ int t)
+{
+ (void)r;
+ (void)s;
+ (void)t;
+ return ssl_undefined_function(ssl);
+}
+
+static int ssl_undefined_function_3(SSL *ssl, unsigned char *r,
+ unsigned char *s, size_t t, size_t *u)
+{
+ (void)r;
+ (void)s;
+ (void)t;
+ (void)u;
+ return ssl_undefined_function(ssl);
+}
+
+static int ssl_undefined_function_4(SSL *ssl, int r)
+{
+ (void)r;
+ return ssl_undefined_function(ssl);
+}
+
+static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s,
+ unsigned char *t)
+{
+ (void)r;
+ (void)s;
+ (void)t;
+ return ssl_undefined_function(ssl);
+}
+
+static int ssl_undefined_function_6(int r)
+{
+ (void)r;
+ return ssl_undefined_function(NULL);
+}
+
+static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s,
+ const char *t, size_t u,
+ const unsigned char *v, size_t w, int x)
+{
+ (void)r;
+ (void)s;
+ (void)t;
+ (void)u;
+ (void)v;
+ (void)w;
+ (void)x;
+ return ssl_undefined_function(ssl);
+}
+
+SSL3_ENC_METHOD ssl3_undef_enc_method = {
+ ssl_undefined_function_1,
+ ssl_undefined_function_2,
+ ssl_undefined_function,
+ ssl_undefined_function_3,
+ ssl_undefined_function_4,
+ ssl_undefined_function_5,
+ NULL, /* client_finished_label */
+ 0, /* client_finished_label_len */
+ NULL, /* server_finished_label */
+ 0, /* server_finished_label_len */
+ ssl_undefined_function_6,
+ ssl_undefined_function_7,
+};
+
+struct ssl_async_args {
+ SSL *s;
+ void *buf;
+ size_t num;
+ enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
+ union {
+ int (*func_read) (SSL *, void *, size_t, size_t *);
+ int (*func_write) (SSL *, const void *, size_t, size_t *);
+ int (*func_other) (SSL *);
+ } f;
+};
+
+static const struct {
+ uint8_t mtype;
+ uint8_t ord;
+ int nid;
+} dane_mds[] = {
+ {
+ DANETLS_MATCHING_FULL, 0, NID_undef
+ },
+ {
+ DANETLS_MATCHING_2256, 1, NID_sha256
+ },
+ {
+ DANETLS_MATCHING_2512, 2, NID_sha512
+ },
+};
+
+static int dane_ctx_enable(struct dane_ctx_st *dctx)
+{
+ const EVP_MD **mdevp;
+ uint8_t *mdord;
+ uint8_t mdmax = DANETLS_MATCHING_LAST;
+ int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
+ size_t i;
+
+ if (dctx->mdevp != NULL)
+ return 1;
+
+ mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
+ mdord = OPENSSL_zalloc(n * sizeof(*mdord));
+
+ if (mdord == NULL || mdevp == NULL) {
+ OPENSSL_free(mdord);
+ OPENSSL_free(mdevp);
+ SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ /* Install default entries */
+ for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
+ const EVP_MD *md;
+
+ if (dane_mds[i].nid == NID_undef ||
+ (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
+ continue;
+ mdevp[dane_mds[i].mtype] = md;
+ mdord[dane_mds[i].mtype] = dane_mds[i].ord;
+ }
+
+ dctx->mdevp = mdevp;
+ dctx->mdord = mdord;
+ dctx->mdmax = mdmax;
+
+ return 1;
+}
+
+static void dane_ctx_final(struct dane_ctx_st *dctx)
+{
+ OPENSSL_free(dctx->mdevp);
+ dctx->mdevp = NULL;
+
+ OPENSSL_free(dctx->mdord);
+ dctx->mdord = NULL;
+ dctx->mdmax = 0;
+}
+
+static void tlsa_free(danetls_record *t)
+{
+ if (t == NULL)
+ return;
+ OPENSSL_free(t->data);
+ EVP_PKEY_free(t->spki);
+ OPENSSL_free(t);
+}
+
+static void dane_final(SSL_DANE *dane)
+{
+ sk_danetls_record_pop_free(dane->trecs, tlsa_free);
+ dane->trecs = NULL;
+
+ sk_X509_pop_free(dane->certs, X509_free);
+ dane->certs = NULL;
+
+ X509_free(dane->mcert);
+ dane->mcert = NULL;
+ dane->mtlsa = NULL;
+ dane->mdpth = -1;
+ dane->pdpth = -1;
+}
+
+/*
+ * dane_copy - Copy dane configuration, sans verification state.
+ */
+static int ssl_dane_dup(SSL *to, SSL *from)
+{
+ int num;
+ int i;
+
+ if (!DANETLS_ENABLED(&from->dane))
+ return 1;
+
+ num = sk_danetls_record_num(from->dane.trecs);
+ dane_final(&to->dane);
+ to->dane.flags = from->dane.flags;
+ to->dane.dctx = &to->ctx->dane;
+ to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
+
+ if (to->dane.trecs == NULL) {
+ SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ for (i = 0; i < num; ++i) {
+ danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
+
+ if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
+ t->data, t->dlen) <= 0)
+ return 0;
+ }
+ return 1;
+}
+
+static int dane_mtype_set(struct dane_ctx_st *dctx,
+ const EVP_MD *md, uint8_t mtype, uint8_t ord)
+{
+ int i;
+
+ if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
+ SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
+ return 0;
+ }
+
+ if (mtype > dctx->mdmax) {
+ const EVP_MD **mdevp;
+ uint8_t *mdord;
+ int n = ((int)mtype) + 1;
+
+ mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
+ if (mdevp == NULL) {
+ SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ dctx->mdevp = mdevp;
+
+ mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
+ if (mdord == NULL) {
+ SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ dctx->mdord = mdord;
+
+ /* Zero-fill any gaps */
+ for (i = dctx->mdmax + 1; i < mtype; ++i) {
+ mdevp[i] = NULL;
+ mdord[i] = 0;
+ }
+
+ dctx->mdmax = mtype;
+ }
+
+ dctx->mdevp[mtype] = md;
+ /* Coerce ordinal of disabled matching types to 0 */
+ dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
+
+ return 1;
+}
+
+static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
+{
+ if (mtype > dane->dctx->mdmax)
+ return NULL;
+ return dane->dctx->mdevp[mtype];
+}
+
+static int dane_tlsa_add(SSL_DANE *dane,
+ uint8_t usage,
+ uint8_t selector,
+ uint8_t mtype, unsigned const char *data, size_t dlen)
+{
+ danetls_record *t;
+ const EVP_MD *md = NULL;
+ int ilen = (int)dlen;
+ int i;
+ int num;
+
+ if (dane->trecs == NULL) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
+ return -1;
+ }
+
+ if (ilen < 0 || dlen != (size_t)ilen) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
+ return 0;
+ }
+
+ if (usage > DANETLS_USAGE_LAST) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
+ return 0;
+ }
+
+ if (selector > DANETLS_SELECTOR_LAST) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
+ return 0;
+ }
+
+ if (mtype != DANETLS_MATCHING_FULL) {
+ md = tlsa_md_get(dane, mtype);
+ if (md == NULL) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
+ return 0;
+ }
+ }
+
+ if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
+ return 0;
+ }
+ if (!data) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
+ return 0;
+ }
+
+ if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+
+ t->usage = usage;
+ t->selector = selector;
+ t->mtype = mtype;
+ t->data = OPENSSL_malloc(dlen);
+ if (t->data == NULL) {
+ tlsa_free(t);
+ SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ memcpy(t->data, data, dlen);
+ t->dlen = dlen;
+
+ /* Validate and cache full certificate or public key */
+ if (mtype == DANETLS_MATCHING_FULL) {
+ const unsigned char *p = data;
+ X509 *cert = NULL;
+ EVP_PKEY *pkey = NULL;
+
+ switch (selector) {
+ case DANETLS_SELECTOR_CERT:
+ if (!d2i_X509(&cert, &p, ilen) || p < data ||
+ dlen != (size_t)(p - data)) {
+ tlsa_free(t);
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
+ return 0;
+ }
+ if (X509_get0_pubkey(cert) == NULL) {
+ tlsa_free(t);
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
+ return 0;
+ }
+
+ if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
+ X509_free(cert);
+ break;
+ }
+
+ /*
+ * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
+ * records that contain full certificates of trust-anchors that are
+ * not present in the wire chain. For usage PKIX-TA(0), we augment
+ * the chain with untrusted Full(0) certificates from DNS, in case
+ * they are missing from the chain.
+ */
+ if ((dane->certs == NULL &&
+ (dane->certs = sk_X509_new_null()) == NULL) ||
+ !sk_X509_push(dane->certs, cert)) {
+ SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
+ X509_free(cert);
+ tlsa_free(t);
+ return -1;
+ }
+ break;
+
+ case DANETLS_SELECTOR_SPKI:
+ if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
+ dlen != (size_t)(p - data)) {
+ tlsa_free(t);
+ SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
+ return 0;
+ }
+
+ /*
+ * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
+ * records that contain full bare keys of trust-anchors that are
+ * not present in the wire chain.
+ */
+ if (usage == DANETLS_USAGE_DANE_TA)
+ t->spki = pkey;
+ else
+ EVP_PKEY_free(pkey);
+ break;
+ }
+ }
+
+ /*-
+ * Find the right insertion point for the new record.
+ *
+ * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
+ * they can be processed first, as they require no chain building, and no
+ * expiration or hostname checks. Because DANE-EE(3) is numerically
+ * largest, this is accomplished via descending sort by "usage".
+ *
+ * We also sort in descending order by matching ordinal to simplify
+ * the implementation of digest agility in the verification code.
+ *
+ * The choice of order for the selector is not significant, so we
+ * use the same descending order for consistency.
+ */
+ num = sk_danetls_record_num(dane->trecs);
+ for (i = 0; i < num; ++i) {
+ danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
+
+ if (rec->usage > usage)
+ continue;
+ if (rec->usage < usage)
+ break;
+ if (rec->selector > selector)
+ continue;
+ if (rec->selector < selector)
+ break;
+ if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
+ continue;
+ break;
+ }
+
+ if (!sk_danetls_record_insert(dane->trecs, t, i)) {
+ tlsa_free(t);
+ SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ dane->umask |= DANETLS_USAGE_BIT(usage);
+
+ return 1;
+}
+
+/*
+ * Return 0 if there is only one version configured and it was disabled
+ * at configure time. Return 1 otherwise.
+ */
+static int ssl_check_allowed_versions(int min_version, int max_version)
+{
+ int minisdtls = 0, maxisdtls = 0;
+
+ /* Figure out if we're doing DTLS versions or TLS versions */
+ if (min_version == DTLS1_BAD_VER
+ || min_version >> 8 == DTLS1_VERSION_MAJOR)
+ minisdtls = 1;
+ if (max_version == DTLS1_BAD_VER
+ || max_version >> 8 == DTLS1_VERSION_MAJOR)
+ maxisdtls = 1;
+ /* A wildcard version of 0 could be DTLS or TLS. */
+ if ((minisdtls && !maxisdtls && max_version != 0)
+ || (maxisdtls && !minisdtls && min_version != 0)) {
+ /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
+ return 0;
+ }
+
+ if (minisdtls || maxisdtls) {
+ /* Do DTLS version checks. */
+ if (min_version == 0)
+ /* Ignore DTLS1_BAD_VER */
+ min_version = DTLS1_VERSION;
+ if (max_version == 0)
+ max_version = DTLS1_2_VERSION;
+#ifdef OPENSSL_NO_DTLS1_2
+ if (max_version == DTLS1_2_VERSION)
+ max_version = DTLS1_VERSION;
+#endif
+#ifdef OPENSSL_NO_DTLS1
+ if (min_version == DTLS1_VERSION)
+ min_version = DTLS1_2_VERSION;
+#endif
+ /* Done massaging versions; do the check. */
+ if (0
+#ifdef OPENSSL_NO_DTLS1
+ || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
+ && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
+#endif
+#ifdef OPENSSL_NO_DTLS1_2
+ || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
+ && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
+#endif
+ )
+ return 0;
+ } else {
+ /* Regular TLS version checks. */
+ if (min_version == 0)
+ min_version = SSL3_VERSION;
+ if (max_version == 0)
+ max_version = TLS1_3_VERSION;
+#ifdef OPENSSL_NO_TLS1_3
+ if (max_version == TLS1_3_VERSION)
+ max_version = TLS1_2_VERSION;
+#endif
+#ifdef OPENSSL_NO_TLS1_2
+ if (max_version == TLS1_2_VERSION)
+ max_version = TLS1_1_VERSION;
+#endif
+#ifdef OPENSSL_NO_TLS1_1
+ if (max_version == TLS1_1_VERSION)
+ max_version = TLS1_VERSION;
+#endif
+#ifdef OPENSSL_NO_TLS1
+ if (max_version == TLS1_VERSION)
+ max_version = SSL3_VERSION;
+#endif
+#ifdef OPENSSL_NO_SSL3
+ if (min_version == SSL3_VERSION)
+ min_version = TLS1_VERSION;
+#endif
+#ifdef OPENSSL_NO_TLS1
+ if (min_version == TLS1_VERSION)
+ min_version = TLS1_1_VERSION;
+#endif
+#ifdef OPENSSL_NO_TLS1_1
+ if (min_version == TLS1_1_VERSION)
+ min_version = TLS1_2_VERSION;
+#endif
+#ifdef OPENSSL_NO_TLS1_2
+ if (min_version == TLS1_2_VERSION)
+ min_version = TLS1_3_VERSION;
+#endif
+ /* Done massaging versions; do the check. */
+ if (0
+#ifdef OPENSSL_NO_SSL3
+ || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
+#endif
+#ifdef OPENSSL_NO_TLS1
+ || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
+#endif
+#ifdef OPENSSL_NO_TLS1_1
+ || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
+#endif
+#ifdef OPENSSL_NO_TLS1_2
+ || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
+#endif
+#ifdef OPENSSL_NO_TLS1_3
+ || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
+#endif
+ )
+ return 0;
+ }
+ return 1;
+}
+
+static void clear_ciphers(SSL *s)
+{
+ /* clear the current cipher */
+ ssl_clear_cipher_ctx(s);
+ ssl_clear_hash_ctx(&s->read_hash);
+ ssl_clear_hash_ctx(&s->write_hash);
+}
+
+int SSL_clear(SSL *s)
+{
+ if (s->method == NULL) {
+ SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
+ return 0;
+ }
+
+ if (ssl_clear_bad_session(s)) {
+ SSL_SESSION_free(s->session);
+ s->session = NULL;
+ }
+ SSL_SESSION_free(s->psksession);
+ s->psksession = NULL;
+ OPENSSL_free(s->psksession_id);
+ s->psksession_id = NULL;
+ s->psksession_id_len = 0;
+ s->hello_retry_request = 0;
+ s->sent_tickets = 0;
+
+ s->error = 0;
+ s->hit = 0;
+ s->shutdown = 0;
+
+ if (s->renegotiate) {
+ SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ ossl_statem_clear(s);
+
+ s->version = s->method->version;
+ s->client_version = s->version;
+ s->rwstate = SSL_NOTHING;
+
+ BUF_MEM_free(s->init_buf);
+ s->init_buf = NULL;
+ clear_ciphers(s);
+ s->first_packet = 0;
+
+ s->key_update = SSL_KEY_UPDATE_NONE;
+
+ EVP_MD_CTX_free(s->pha_dgst);
+ s->pha_dgst = NULL;
+
+ /* Reset DANE verification result state */
+ s->dane.mdpth = -1;
+ s->dane.pdpth = -1;
+ X509_free(s->dane.mcert);
+ s->dane.mcert = NULL;
+ s->dane.mtlsa = NULL;
+
+ /* Clear the verification result peername */
+ X509_VERIFY_PARAM_move_peername(s->param, NULL);
+
+ /* Clear any shared connection state */
+ OPENSSL_free(s->shared_sigalgs);
+ s->shared_sigalgs = NULL;
+ s->shared_sigalgslen = 0;
+
+ /*
+ * Check to see if we were changed into a different method, if so, revert
+ * back.
+ */
+ if (s->method != s->ctx->method) {
+ s->method->ssl_free(s);
+ s->method = s->ctx->method;
+ if (!s->method->ssl_new(s))
+ return 0;
+ } else {
+ if (!s->method->ssl_clear(s))
+ return 0;
+ }
+
+ RECORD_LAYER_clear(&s->rlayer);
+
+ return 1;
+}
+
+/** Used to change an SSL_CTXs default SSL method type */
+int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
+{
+ STACK_OF(SSL_CIPHER) *sk;
+
+ ctx->method = meth;
+
+ if (!SSL_CTX_set_ciphersuites(ctx, TLS_DEFAULT_CIPHERSUITES)) {
+ SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
+ return 0;
+ }
+ sk = ssl_create_cipher_list(ctx->method,
+ ctx->tls13_ciphersuites,
+ &(ctx->cipher_list),
+ &(ctx->cipher_list_by_id),
+ SSL_DEFAULT_CIPHER_LIST, ctx->cert);
+ if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
+ SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
+ return 0;
+ }
+ return 1;
+}
+
+SSL *SSL_new(SSL_CTX *ctx)
+{
+ SSL *s;
+
+ if (ctx == NULL) {
+ SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
+ return NULL;
+ }
+ if (ctx->method == NULL) {
+ SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
+ return NULL;
+ }
+
+ s = OPENSSL_zalloc(sizeof(*s));
+ if (s == NULL)
+ goto err;
+
+ s->references = 1;
+ s->lock = CRYPTO_THREAD_lock_new();
+ if (s->lock == NULL) {
+ OPENSSL_free(s);
+ s = NULL;
+ goto err;
+ }
+
+ RECORD_LAYER_init(&s->rlayer, s);
+
+ s->options = ctx->options;
+ s->dane.flags = ctx->dane.flags;
+ s->min_proto_version = ctx->min_proto_version;
+ s->max_proto_version = ctx->max_proto_version;
+ s->mode = ctx->mode;
+ s->max_cert_list = ctx->max_cert_list;
+ s->max_early_data = ctx->max_early_data;
+ s->recv_max_early_data = ctx->recv_max_early_data;
+ s->num_tickets = ctx->num_tickets;
+ s->pha_enabled = ctx->pha_enabled;
+
+ /* Shallow copy of the ciphersuites stack */
+ s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
+ if (s->tls13_ciphersuites == NULL)
+ goto err;
+
+ /*
+ * Earlier library versions used to copy the pointer to the CERT, not
+ * its contents; only when setting new parameters for the per-SSL
+ * copy, ssl_cert_new would be called (and the direct reference to
+ * the per-SSL_CTX settings would be lost, but those still were
+ * indirectly accessed for various purposes, and for that reason they
+ * used to be known as s->ctx->default_cert). Now we don't look at the
+ * SSL_CTX's CERT after having duplicated it once.
+ */
+ s->cert = ssl_cert_dup(ctx->cert);
+ if (s->cert == NULL)
+ goto err;
+
+ RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
+ s->msg_callback = ctx->msg_callback;
+ s->msg_callback_arg = ctx->msg_callback_arg;
+ s->verify_mode = ctx->verify_mode;
+ s->not_resumable_session_cb = ctx->not_resumable_session_cb;
+ s->record_padding_cb = ctx->record_padding_cb;
+ s->record_padding_arg = ctx->record_padding_arg;
+ s->block_padding = ctx->block_padding;
+ s->sid_ctx_length = ctx->sid_ctx_length;
+ if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
+ goto err;
+ memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
+ s->verify_callback = ctx->default_verify_callback;
+ s->generate_session_id = ctx->generate_session_id;
+
+ s->param = X509_VERIFY_PARAM_new();
+ if (s->param == NULL)
+ goto err;
+ X509_VERIFY_PARAM_inherit(s->param, ctx->param);
+ s->quiet_shutdown = ctx->quiet_shutdown;
+
+ s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
+ s->max_send_fragment = ctx->max_send_fragment;
+ s->split_send_fragment = ctx->split_send_fragment;
+ s->max_pipelines = ctx->max_pipelines;
+ if (s->max_pipelines > 1)
+ RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
+ if (ctx->default_read_buf_len > 0)
+ SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
+
+ SSL_CTX_up_ref(ctx);
+ s->ctx = ctx;
+ s->ext.debug_cb = 0;
+ s->ext.debug_arg = NULL;
+ s->ext.ticket_expected = 0;
+ s->ext.status_type = ctx->ext.status_type;
+ s->ext.status_expected = 0;
+ s->ext.ocsp.ids = NULL;
+ s->ext.ocsp.exts = NULL;
+ s->ext.ocsp.resp = NULL;
+ s->ext.ocsp.resp_len = 0;
+ SSL_CTX_up_ref(ctx);
+ s->session_ctx = ctx;
+#ifndef OPENSSL_NO_EC
+ if (ctx->ext.ecpointformats) {
+ s->ext.ecpointformats =
+ OPENSSL_memdup(ctx->ext.ecpointformats,
+ ctx->ext.ecpointformats_len);
+ if (!s->ext.ecpointformats) {
+ s->ext.ecpointformats_len = 0;
+ goto err;
+ }
+ s->ext.ecpointformats_len =
+ ctx->ext.ecpointformats_len;
+ }
+ if (ctx->ext.supportedgroups) {
+ s->ext.supportedgroups =
+ OPENSSL_memdup(ctx->ext.supportedgroups,
+ ctx->ext.supportedgroups_len
+ * sizeof(*ctx->ext.supportedgroups));
+ if (!s->ext.supportedgroups) {
+ s->ext.supportedgroups_len = 0;
+ goto err;
+ }
+ s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
+ }
+#endif
+#ifndef OPENSSL_NO_NEXTPROTONEG
+ s->ext.npn = NULL;
+#endif
+
+ if (s->ctx->ext.alpn) {
+ s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);
+ if (s->ext.alpn == NULL) {
+ s->ext.alpn_len = 0;
+ goto err;
+ }
+ memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);
+ s->ext.alpn_len = s->ctx->ext.alpn_len;
+ }
+
+ s->verified_chain = NULL;
+ s->verify_result = X509_V_OK;
+
+ s->default_passwd_callback = ctx->default_passwd_callback;
+ s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
+
+ s->method = ctx->method;
+
+ s->key_update = SSL_KEY_UPDATE_NONE;
+
+ s->allow_early_data_cb = ctx->allow_early_data_cb;
+ s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
+
+ if (!s->method->ssl_new(s))
+ goto err;
+
+ s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
+
+ if (!SSL_clear(s))
+ goto err;
+
+ if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
+ goto err;
+
+#ifndef OPENSSL_NO_PSK
+ s->psk_client_callback = ctx->psk_client_callback;
+ s->psk_server_callback = ctx->psk_server_callback;
+#endif
+ s->psk_find_session_cb = ctx->psk_find_session_cb;
+ s->psk_use_session_cb = ctx->psk_use_session_cb;
+
+ s->job = NULL;
+
+#ifndef OPENSSL_NO_CT
+ if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
+ ctx->ct_validation_callback_arg))
+ goto err;
+#endif
+
+ return s;
+ err:
+ SSL_free(s);
+ SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
+ return NULL;
+}
+
+int SSL_is_dtls(const SSL *s)
+{
+ return SSL_IS_DTLS(s) ? 1 : 0;
+}
+
+int SSL_up_ref(SSL *s)
+{
+ int i;
+
+ if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("SSL", s);
+ REF_ASSERT_ISNT(i < 2);
+ return ((i > 1) ? 1 : 0);
+}
+
+int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
+ unsigned int sid_ctx_len)
+{
+ if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
+ SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
+ SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
+ return 0;
+ }
+ ctx->sid_ctx_length = sid_ctx_len;
+ memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
+
+ return 1;
+}
+
+int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
+ unsigned int sid_ctx_len)
+{
+ if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
+ SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
+ SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
+ return 0;
+ }
+ ssl->sid_ctx_length = sid_ctx_len;
+ memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
+
+ return 1;
+}
+
+int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
+{
+ CRYPTO_THREAD_write_lock(ctx->lock);
+ ctx->generate_session_id = cb;
+ CRYPTO_THREAD_unlock(ctx->lock);
+ return 1;
+}
+
+int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
+{
+ CRYPTO_THREAD_write_lock(ssl->lock);
+ ssl->generate_session_id = cb;
+ CRYPTO_THREAD_unlock(ssl->lock);
+ return 1;
+}
+
+int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
+ unsigned int id_len)
+{
+ /*
+ * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
+ * we can "construct" a session to give us the desired check - i.e. to
+ * find if there's a session in the hash table that would conflict with
+ * any new session built out of this id/id_len and the ssl_version in use
+ * by this SSL.
+ */
+ SSL_SESSION r, *p;
+
+ if (id_len > sizeof(r.session_id))
+ return 0;
+
+ r.ssl_version = ssl->version;
+ r.session_id_length = id_len;
+ memcpy(r.session_id, id, id_len);
+
+ CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
+ p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
+ CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
+ return (p != NULL);
+}
+
+int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
+{
+ return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
+}
+
+int SSL_set_purpose(SSL *s, int purpose)
+{
+ return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
+}
+
+int SSL_CTX_set_trust(SSL_CTX *s, int trust)
+{
+ return X509_VERIFY_PARAM_set_trust(s->param, trust);
+}
+
+int SSL_set_trust(SSL *s, int trust)
+{
+ return X509_VERIFY_PARAM_set_trust(s->param, trust);
+}
+
+int SSL_set1_host(SSL *s, const char *hostname)
+{
+ return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
+}
+
+int SSL_add1_host(SSL *s, const char *hostname)
+{
+ return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
+}
+
+void SSL_set_hostflags(SSL *s, unsigned int flags)
+{
+ X509_VERIFY_PARAM_set_hostflags(s->param, flags);
+}
+
+const char *SSL_get0_peername(SSL *s)
+{
+ return X509_VERIFY_PARAM_get0_peername(s->param);
+}
+
+int SSL_CTX_dane_enable(SSL_CTX *ctx)
+{
+ return dane_ctx_enable(&ctx->dane);
+}
+
+unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
+{
+ unsigned long orig = ctx->dane.flags;
+
+ ctx->dane.flags |= flags;
+ return orig;
+}
+
+unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
+{
+ unsigned long orig = ctx->dane.flags;
+
+ ctx->dane.flags &= ~flags;
+ return orig;
+}
+
+int SSL_dane_enable(SSL *s, const char *basedomain)
+{
+ SSL_DANE *dane = &s->dane;
+
+ if (s->ctx->dane.mdmax == 0) {
+ SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
+ return 0;
+ }
+ if (dane->trecs != NULL) {
+ SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
+ return 0;
+ }
+
+ /*
+ * Default SNI name. This rejects empty names, while set1_host below
+ * accepts them and disables host name checks. To avoid side-effects with
+ * invalid input, set the SNI name first.
+ */
+ if (s->ext.hostname == NULL) {
+ if (!SSL_set_tlsext_host_name(s, basedomain)) {
+ SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
+ return -1;
+ }
+ }
+
+ /* Primary RFC6125 reference identifier */
+ if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
+ SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
+ return -1;
+ }
+
+ dane->mdpth = -1;
+ dane->pdpth = -1;
+ dane->dctx = &s->ctx->dane;
+ dane->trecs = sk_danetls_record_new_null();
+
+ if (dane->trecs == NULL) {
+ SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ return 1;
+}
+
+unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
+{
+ unsigned long orig = ssl->dane.flags;
+
+ ssl->dane.flags |= flags;
+ return orig;
+}
+
+unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
+{
+ unsigned long orig = ssl->dane.flags;
+
+ ssl->dane.flags &= ~flags;
+ return orig;
+}
+
+int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
+{
+ SSL_DANE *dane = &s->dane;
+
+ if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
+ return -1;
+ if (dane->mtlsa) {
+ if (mcert)
+ *mcert = dane->mcert;
+ if (mspki)
+ *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
+ }
+ return dane->mdpth;
+}
+
+int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
+ uint8_t *mtype, unsigned const char **data, size_t *dlen)
+{
+ SSL_DANE *dane = &s->dane;
+
+ if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
+ return -1;
+ if (dane->mtlsa) {
+ if (usage)
+ *usage = dane->mtlsa->usage;
+ if (selector)
+ *selector = dane->mtlsa->selector;
+ if (mtype)
+ *mtype = dane->mtlsa->mtype;
+ if (data)
+ *data = dane->mtlsa->data;
+ if (dlen)
+ *dlen = dane->mtlsa->dlen;
+ }
+ return dane->mdpth;
+}
+
+SSL_DANE *SSL_get0_dane(SSL *s)
+{
+ return &s->dane;
+}
+
+int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
+ uint8_t mtype, unsigned const char *data, size_t dlen)
+{
+ return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
+}
+
+int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
+ uint8_t ord)
+{
+ return dane_mtype_set(&ctx->dane, md, mtype, ord);
+}
+
+int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
+{
+ return X509_VERIFY_PARAM_set1(ctx->param, vpm);
+}
+
+int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
+{
+ return X509_VERIFY_PARAM_set1(ssl->param, vpm);
+}
+
+X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
+{
+ return ctx->param;
+}
+
+X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
+{
+ return ssl->param;
+}
+
+void SSL_certs_clear(SSL *s)
+{
+ ssl_cert_clear_certs(s->cert);
+}
+
+void SSL_free(SSL *s)
+{
+ int i;
+
+ if (s == NULL)
+ return;
+ CRYPTO_DOWN_REF(&s->references, &i, s->lock);
+ REF_PRINT_COUNT("SSL", s);
+ if (i > 0)
+ return;
+ REF_ASSERT_ISNT(i < 0);
+
+ X509_VERIFY_PARAM_free(s->param);
+ dane_final(&s->dane);
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
+
+ /* Ignore return value */
+ ssl_free_wbio_buffer(s);
+
+ BIO_free_all(s->wbio);
+ BIO_free_all(s->rbio);
+
+ BUF_MEM_free(s->init_buf);
+
+ /* add extra stuff */
+ sk_SSL_CIPHER_free(s->cipher_list);
+ sk_SSL_CIPHER_free(s->cipher_list_by_id);
+ sk_SSL_CIPHER_free(s->tls13_ciphersuites);
+ sk_SSL_CIPHER_free(s->peer_ciphers);
+
+ /* Make the next call work :-) */
+ if (s->session != NULL) {
+ ssl_clear_bad_session(s);
+ SSL_SESSION_free(s->session);
+ }
+ SSL_SESSION_free(s->psksession);
+ OPENSSL_free(s->psksession_id);
+
+ clear_ciphers(s);
+
+ ssl_cert_free(s->cert);
+ OPENSSL_free(s->shared_sigalgs);
+ /* Free up if allocated */
+
+ OPENSSL_free(s->ext.hostname);
+ SSL_CTX_free(s->session_ctx);
+#ifndef OPENSSL_NO_EC
+ OPENSSL_free(s->ext.ecpointformats);
+ OPENSSL_free(s->ext.peer_ecpointformats);
+ OPENSSL_free(s->ext.supportedgroups);
+ OPENSSL_free(s->ext.peer_supportedgroups);
+#endif /* OPENSSL_NO_EC */
+ sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
+#ifndef OPENSSL_NO_OCSP
+ sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
+#endif
+#ifndef OPENSSL_NO_CT
+ SCT_LIST_free(s->scts);
+ OPENSSL_free(s->ext.scts);
+#endif
+ OPENSSL_free(s->ext.ocsp.resp);
+ OPENSSL_free(s->ext.alpn);
+ OPENSSL_free(s->ext.tls13_cookie);
+ if (s->clienthello != NULL)
+ OPENSSL_free(s->clienthello->pre_proc_exts);
+ OPENSSL_free(s->clienthello);
+ OPENSSL_free(s->pha_context);
+ EVP_MD_CTX_free(s->pha_dgst);
+
+ sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
+ sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
+
+ sk_X509_pop_free(s->verified_chain, X509_free);
+
+ if (s->method != NULL)
+ s->method->ssl_free(s);
+
+ RECORD_LAYER_release(&s->rlayer);
+
+ SSL_CTX_free(s->ctx);
+
+ ASYNC_WAIT_CTX_free(s->waitctx);
+
+#if !defined(OPENSSL_NO_NEXTPROTONEG)
+ OPENSSL_free(s->ext.npn);
+#endif
+
+#ifndef OPENSSL_NO_SRTP
+ sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
+#endif
+
+ CRYPTO_THREAD_lock_free(s->lock);
+
+ OPENSSL_free(s);
+}
+
+void SSL_set0_rbio(SSL *s, BIO *rbio)
+{
+ BIO_free_all(s->rbio);
+ s->rbio = rbio;
+}
+
+void SSL_set0_wbio(SSL *s, BIO *wbio)
+{
+ /*
+ * If the output buffering BIO is still in place, remove it
+ */
+ if (s->bbio != NULL)
+ s->wbio = BIO_pop(s->wbio);
+
+ BIO_free_all(s->wbio);
+ s->wbio = wbio;
+
+ /* Re-attach |bbio| to the new |wbio|. */
+ if (s->bbio != NULL)
+ s->wbio = BIO_push(s->bbio, s->wbio);
+}
+
+void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
+{
+ /*
+ * For historical reasons, this function has many different cases in
+ * ownership handling.
+ */
+
+ /* If nothing has changed, do nothing */
+ if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
+ return;
+
+ /*
+ * If the two arguments are equal then one fewer reference is granted by the
+ * caller than we want to take
+ */
+ if (rbio != NULL && rbio == wbio)
+ BIO_up_ref(rbio);
+
+ /*
+ * If only the wbio is changed only adopt one reference.
+ */
+ if (rbio == SSL_get_rbio(s)) {
+ SSL_set0_wbio(s, wbio);
+ return;
+ }
+ /*
+ * There is an asymmetry here for historical reasons. If only the rbio is
+ * changed AND the rbio and wbio were originally different, then we only
+ * adopt one reference.
+ */
+ if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
+ SSL_set0_rbio(s, rbio);
+ return;
+ }
+
+ /* Otherwise, adopt both references. */
+ SSL_set0_rbio(s, rbio);
+ SSL_set0_wbio(s, wbio);
+}
+
+BIO *SSL_get_rbio(const SSL *s)
+{
+ return s->rbio;
+}
+
+BIO *SSL_get_wbio(const SSL *s)
+{
+ if (s->bbio != NULL) {
+ /*
+ * If |bbio| is active, the true caller-configured BIO is its
+ * |next_bio|.
+ */
+ return BIO_next(s->bbio);
+ }
+ return s->wbio;
+}
+
+int SSL_get_fd(const SSL *s)
+{
+ return SSL_get_rfd(s);
+}
+
+int SSL_get_rfd(const SSL *s)
+{
+ int ret = -1;
+ BIO *b, *r;
+
+ b = SSL_get_rbio(s);
+ r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
+ if (r != NULL)
+ BIO_get_fd(r, &ret);
+ return ret;
+}
+
+int SSL_get_wfd(const SSL *s)
+{
+ int ret = -1;
+ BIO *b, *r;
+
+ b = SSL_get_wbio(s);
+ r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
+ if (r != NULL)
+ BIO_get_fd(r, &ret);
+ return ret;
+}
+
+#ifndef OPENSSL_NO_SOCK
+int SSL_set_fd(SSL *s, int fd)
+{
+ int ret = 0;
+ BIO *bio = NULL;
+
+ bio = BIO_new(BIO_s_socket());
+
+ if (bio == NULL) {
+ SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
+ goto err;
+ }
+ BIO_set_fd(bio, fd, BIO_NOCLOSE);
+ SSL_set_bio(s, bio, bio);
+ ret = 1;
+ err:
+ return ret;
+}
+
+int SSL_set_wfd(SSL *s, int fd)
+{
+ BIO *rbio = SSL_get_rbio(s);
+
+ if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
+ || (int)BIO_get_fd(rbio, NULL) != fd) {
+ BIO *bio = BIO_new(BIO_s_socket());
+
+ if (bio == NULL) {
+ SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
+ return 0;
+ }
+ BIO_set_fd(bio, fd, BIO_NOCLOSE);
+ SSL_set0_wbio(s, bio);
+ } else {
+ BIO_up_ref(rbio);
+ SSL_set0_wbio(s, rbio);
+ }
+ return 1;
+}
+
+int SSL_set_rfd(SSL *s, int fd)
+{
+ BIO *wbio = SSL_get_wbio(s);
+
+ if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
+ || ((int)BIO_get_fd(wbio, NULL) != fd)) {
+ BIO *bio = BIO_new(BIO_s_socket());
+
+ if (bio == NULL) {
+ SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
+ return 0;
+ }
+ BIO_set_fd(bio, fd, BIO_NOCLOSE);
+ SSL_set0_rbio(s, bio);
+ } else {
+ BIO_up_ref(wbio);
+ SSL_set0_rbio(s, wbio);
+ }
+
+ return 1;
+}
+#endif
+
+/* return length of latest Finished message we sent, copy to 'buf' */
+size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
+{
+ size_t ret = 0;
+
+ if (s->s3 != NULL) {
+ ret = s->s3->tmp.finish_md_len;
+ if (count > ret)
+ count = ret;
+ memcpy(buf, s->s3->tmp.finish_md, count);
+ }
+ return ret;
+}
+
+/* return length of latest Finished message we expected, copy to 'buf' */
+size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
+{
+ size_t ret = 0;
+
+ if (s->s3 != NULL) {
+ ret = s->s3->tmp.peer_finish_md_len;
+ if (count > ret)
+ count = ret;
+ memcpy(buf, s->s3->tmp.peer_finish_md, count);
+ }
+ return ret;
+}
+
+int SSL_get_verify_mode(const SSL *s)
+{
+ return s->verify_mode;
+}
+
+int SSL_get_verify_depth(const SSL *s)
+{
+ return X509_VERIFY_PARAM_get_depth(s->param);
+}
+
+int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
+ return s->verify_callback;
+}
+
+int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
+{
+ return ctx->verify_mode;
+}
+
+int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
+{
+ return X509_VERIFY_PARAM_get_depth(ctx->param);
+}
+
+int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
+ return ctx->default_verify_callback;
+}
+
+void SSL_set_verify(SSL *s, int mode,
+ int (*callback) (int ok, X509_STORE_CTX *ctx))
+{
+ s->verify_mode = mode;
+ if (callback != NULL)
+ s->verify_callback = callback;
+}
+
+void SSL_set_verify_depth(SSL *s, int depth)
+{
+ X509_VERIFY_PARAM_set_depth(s->param, depth);
+}
+
+void SSL_set_read_ahead(SSL *s, int yes)
+{
+ RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
+}
+
+int SSL_get_read_ahead(const SSL *s)
+{
+ return RECORD_LAYER_get_read_ahead(&s->rlayer);
+}
+
+int SSL_pending(const SSL *s)
+{
+ size_t pending = s->method->ssl_pending(s);
+
+ /*
+ * SSL_pending cannot work properly if read-ahead is enabled
+ * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
+ * impossible to fix since SSL_pending cannot report errors that may be
+ * observed while scanning the new data. (Note that SSL_pending() is
+ * often used as a boolean value, so we'd better not return -1.)
+ *
+ * SSL_pending also cannot work properly if the value >INT_MAX. In that case
+ * we just return INT_MAX.
+ */
+ return pending < INT_MAX ? (int)pending : INT_MAX;
+}
+
+int SSL_has_pending(const SSL *s)
+{
+ /*
+ * Similar to SSL_pending() but returns a 1 to indicate that we have
+ * processed or unprocessed data available or 0 otherwise (as opposed to the
+ * number of bytes available). Unlike SSL_pending() this will take into
+ * account read_ahead data. A 1 return simply indicates that we have data.
+ * That data may not result in any application data, or we may fail to parse
+ * the records for some reason.
+ */
+
+ /* Check buffered app data if any first */
+ if (SSL_IS_DTLS(s)) {
+ DTLS1_RECORD_DATA *rdata;
+ pitem *item, *iter;
+
+ iter = pqueue_iterator(s->rlayer.d->buffered_app_data.q);
+ while ((item = pqueue_next(&iter)) != NULL) {
+ rdata = item->data;
+ if (rdata->rrec.length > 0)
+ return 1;
+ }
+ }
+
+ if (RECORD_LAYER_processed_read_pending(&s->rlayer))
+ return 1;
+
+ return RECORD_LAYER_read_pending(&s->rlayer);
+}
+
+X509 *SSL_get_peer_certificate(const SSL *s)
+{
+ X509 *r;
+
+ if ((s == NULL) || (s->session == NULL))
+ r = NULL;
+ else
+ r = s->session->peer;
+
+ if (r == NULL)
+ return r;
+
+ X509_up_ref(r);
+
+ return r;
+}
+
+STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
+{
+ STACK_OF(X509) *r;
+
+ if ((s == NULL) || (s->session == NULL))
+ r = NULL;
+ else
+ r = s->session->peer_chain;
+
+ /*
+ * If we are a client, cert_chain includes the peer's own certificate; if
+ * we are a server, it does not.
+ */
+
+ return r;
+}
+
+/*
+ * Now in theory, since the calling process own 't' it should be safe to
+ * modify. We need to be able to read f without being hassled
+ */
+int SSL_copy_session_id(SSL *t, const SSL *f)
+{
+ int i;
+ /* Do we need to to SSL locking? */
+ if (!SSL_set_session(t, SSL_get_session(f))) {
+ return 0;
+ }
+
+ /*
+ * what if we are setup for one protocol version but want to talk another
+ */
+ if (t->method != f->method) {
+ t->method->ssl_free(t);
+ t->method = f->method;
+ if (t->method->ssl_new(t) == 0)
+ return 0;
+ }
+
+ CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
+ ssl_cert_free(t->cert);
+ t->cert = f->cert;
+ if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Fix this so it checks all the valid key/cert options */
+int SSL_CTX_check_private_key(const SSL_CTX *ctx)
+{
+ if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
+ SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
+ return 0;
+ }
+ if (ctx->cert->key->privatekey == NULL) {
+ SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
+ return 0;
+ }
+ return X509_check_private_key
+ (ctx->cert->key->x509, ctx->cert->key->privatekey);
+}
+
+/* Fix this function so that it takes an optional type parameter */
+int SSL_check_private_key(const SSL *ssl)
+{
+ if (ssl == NULL) {
+ SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ if (ssl->cert->key->x509 == NULL) {
+ SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
+ return 0;
+ }
+ if (ssl->cert->key->privatekey == NULL) {
+ SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
+ return 0;
+ }
+ return X509_check_private_key(ssl->cert->key->x509,
+ ssl->cert->key->privatekey);
+}
+
+int SSL_waiting_for_async(SSL *s)
+{
+ if (s->job)
+ return 1;
+
+ return 0;
+}
+
+int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
+{
+ ASYNC_WAIT_CTX *ctx = s->waitctx;
+
+ if (ctx == NULL)
+ return 0;
+ return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
+}
+
+int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
+ OSSL_ASYNC_FD *delfd, size_t *numdelfds)
+{
+ ASYNC_WAIT_CTX *ctx = s->waitctx;
+
+ if (ctx == NULL)
+ return 0;
+ return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
+ numdelfds);
+}
+
+int SSL_accept(SSL *s)
+{
+ if (s->handshake_func == NULL) {
+ /* Not properly initialized yet */
+ SSL_set_accept_state(s);
+ }
+
+ return SSL_do_handshake(s);
+}
+
+int SSL_connect(SSL *s)
+{
+ if (s->handshake_func == NULL) {
+ /* Not properly initialized yet */
+ SSL_set_connect_state(s);
+ }
+
+ return SSL_do_handshake(s);
+}
+
+long SSL_get_default_timeout(const SSL *s)
+{
+ return s->method->get_timeout();
+}
+
+static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
+ int (*func) (void *))
+{
+ int ret;
+ if (s->waitctx == NULL) {
+ s->waitctx = ASYNC_WAIT_CTX_new();
+ if (s->waitctx == NULL)
+ return -1;
+ }
+
+ s->rwstate = SSL_NOTHING;
+ switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
+ sizeof(struct ssl_async_args))) {
+ case ASYNC_ERR:
+ s->rwstate = SSL_NOTHING;
+ SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
+ return -1;
+ case ASYNC_PAUSE:
+ s->rwstate = SSL_ASYNC_PAUSED;
+ return -1;
+ case ASYNC_NO_JOBS:
+ s->rwstate = SSL_ASYNC_NO_JOBS;
+ return -1;
+ case ASYNC_FINISH:
+ s->job = NULL;
+ return ret;
+ default:
+ s->rwstate = SSL_NOTHING;
+ SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
+ /* Shouldn't happen */
+ return -1;
+ }
+}
+
+static int ssl_io_intern(void *vargs)
+{
+ struct ssl_async_args *args;
+ SSL *s;
+ void *buf;
+ size_t num;
+
+ args = (struct ssl_async_args *)vargs;
+ s = args->s;
+ buf = args->buf;
+ num = args->num;
+ switch (args->type) {
+ case READFUNC:
+ return args->f.func_read(s, buf, num, &s->asyncrw);
+ case WRITEFUNC:
+ return args->f.func_write(s, buf, num, &s->asyncrw);
+ case OTHERFUNC:
+ return args->f.func_other(s);
+ }
+ return -1;
+}
+
+int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
+{
+ if (s->handshake_func == NULL) {
+ SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED);
+ return -1;
+ }
+
+ if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
+ s->rwstate = SSL_NOTHING;
+ return 0;
+ }
+
+ if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
+ || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
+ SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ /*
+ * If we are a client and haven't received the ServerHello etc then we
+ * better do that
+ */
+ ossl_statem_check_finish_init(s, 0);
+
+ if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+ struct ssl_async_args args;
+ int ret;
+
+ args.s = s;
+ args.buf = buf;
+ args.num = num;
+ args.type = READFUNC;
+ args.f.func_read = s->method->ssl_read;
+
+ ret = ssl_start_async_job(s, &args, ssl_io_intern);
+ *readbytes = s->asyncrw;
+ return ret;
+ } else {
+ return s->method->ssl_read(s, buf, num, readbytes);
+ }
+}
+
+int SSL_read(SSL *s, void *buf, int num)
+{
+ int ret;
+ size_t readbytes;
+
+ if (num < 0) {
+ SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
+ return -1;
+ }
+
+ ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
+
+ /*
+ * The cast is safe here because ret should be <= INT_MAX because num is
+ * <= INT_MAX
+ */
+ if (ret > 0)
+ ret = (int)readbytes;
+
+ return ret;
+}
+
+int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
+{
+ int ret = ssl_read_internal(s, buf, num, readbytes);
+
+ if (ret < 0)
+ ret = 0;
+ return ret;
+}
+
+int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
+{
+ int ret;
+
+ if (!s->server) {
+ SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return SSL_READ_EARLY_DATA_ERROR;
+ }
+
+ switch (s->early_data_state) {
+ case SSL_EARLY_DATA_NONE:
+ if (!SSL_in_before(s)) {
+ SSLerr(SSL_F_SSL_READ_EARLY_DATA,
+ ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return SSL_READ_EARLY_DATA_ERROR;
+ }
+ /* fall through */
+
+ case SSL_EARLY_DATA_ACCEPT_RETRY:
+ s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
+ ret = SSL_accept(s);
+ if (ret <= 0) {
+ /* NBIO or error */
+ s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
+ return SSL_READ_EARLY_DATA_ERROR;
+ }
+ /* fall through */
+
+ case SSL_EARLY_DATA_READ_RETRY:
+ if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
+ s->early_data_state = SSL_EARLY_DATA_READING;
+ ret = SSL_read_ex(s, buf, num, readbytes);
+ /*
+ * State machine will update early_data_state to
+ * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
+ * message
+ */
+ if (ret > 0 || (ret <= 0 && s->early_data_state
+ != SSL_EARLY_DATA_FINISHED_READING)) {
+ s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
+ return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
+ : SSL_READ_EARLY_DATA_ERROR;
+ }
+ } else {
+ s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
+ }
+ *readbytes = 0;
+ return SSL_READ_EARLY_DATA_FINISH;
+
+ default:
+ SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return SSL_READ_EARLY_DATA_ERROR;
+ }
+}
+
+int SSL_get_early_data_status(const SSL *s)
+{
+ return s->ext.early_data;
+}
+
+static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
+{
+ if (s->handshake_func == NULL) {
+ SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED);
+ return -1;
+ }
+
+ if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
+ return 0;
+ }
+ if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+ struct ssl_async_args args;
+ int ret;
+
+ args.s = s;
+ args.buf = buf;
+ args.num = num;
+ args.type = READFUNC;
+ args.f.func_read = s->method->ssl_peek;
+
+ ret = ssl_start_async_job(s, &args, ssl_io_intern);
+ *readbytes = s->asyncrw;
+ return ret;
+ } else {
+ return s->method->ssl_peek(s, buf, num, readbytes);
+ }
+}
+
+int SSL_peek(SSL *s, void *buf, int num)
+{
+ int ret;
+ size_t readbytes;
+
+ if (num < 0) {
+ SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
+ return -1;
+ }
+
+ ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
+
+ /*
+ * The cast is safe here because ret should be <= INT_MAX because num is
+ * <= INT_MAX
+ */
+ if (ret > 0)
+ ret = (int)readbytes;
+
+ return ret;
+}
+
+
+int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
+{
+ int ret = ssl_peek_internal(s, buf, num, readbytes);
+
+ if (ret < 0)
+ ret = 0;
+ return ret;
+}
+
+int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
+{
+ if (s->handshake_func == NULL) {
+ SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED);
+ return -1;
+ }
+
+ if (s->shutdown & SSL_SENT_SHUTDOWN) {
+ s->rwstate = SSL_NOTHING;
+ SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN);
+ return -1;
+ }
+
+ if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
+ || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
+ || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
+ SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ /* If we are a client and haven't sent the Finished we better do that */
+ ossl_statem_check_finish_init(s, 1);
+
+ if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+ int ret;
+ struct ssl_async_args args;
+
+ args.s = s;
+ args.buf = (void *)buf;
+ args.num = num;
+ args.type = WRITEFUNC;
+ args.f.func_write = s->method->ssl_write;
+
+ ret = ssl_start_async_job(s, &args, ssl_io_intern);
+ *written = s->asyncrw;
+ return ret;
+ } else {
+ return s->method->ssl_write(s, buf, num, written);
+ }
+}
+
+int SSL_write(SSL *s, const void *buf, int num)
+{
+ int ret;
+ size_t written;
+
+ if (num < 0) {
+ SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
+ return -1;
+ }
+
+ ret = ssl_write_internal(s, buf, (size_t)num, &written);
+
+ /*
+ * The cast is safe here because ret should be <= INT_MAX because num is
+ * <= INT_MAX
+ */
+ if (ret > 0)
+ ret = (int)written;
+
+ return ret;
+}
+
+int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
+{
+ int ret = ssl_write_internal(s, buf, num, written);
+
+ if (ret < 0)
+ ret = 0;
+ return ret;
+}
+
+int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
+{
+ int ret, early_data_state;
+ size_t writtmp;
+ uint32_t partialwrite;
+
+ switch (s->early_data_state) {
+ case SSL_EARLY_DATA_NONE:
+ if (s->server
+ || !SSL_in_before(s)
+ || ((s->session == NULL || s->session->ext.max_early_data == 0)
+ && (s->psk_use_session_cb == NULL))) {
+ SSLerr(SSL_F_SSL_WRITE_EARLY_DATA,
+ ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ /* fall through */
+
+ case SSL_EARLY_DATA_CONNECT_RETRY:
+ s->early_data_state = SSL_EARLY_DATA_CONNECTING;
+ ret = SSL_connect(s);
+ if (ret <= 0) {
+ /* NBIO or error */
+ s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
+ return 0;
+ }
+ /* fall through */
+
+ case SSL_EARLY_DATA_WRITE_RETRY:
+ s->early_data_state = SSL_EARLY_DATA_WRITING;
+ /*
+ * We disable partial write for early data because we don't keep track
+ * of how many bytes we've written between the SSL_write_ex() call and
+ * the flush if the flush needs to be retried)
+ */
+ partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
+ s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
+ ret = SSL_write_ex(s, buf, num, &writtmp);
+ s->mode |= partialwrite;
+ if (!ret) {
+ s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
+ return ret;
+ }
+ s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
+ /* fall through */
+
+ case SSL_EARLY_DATA_WRITE_FLUSH:
+ /* The buffering BIO is still in place so we need to flush it */
+ if (statem_flush(s) != 1)
+ return 0;
+ *written = num;
+ s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
+ return 1;
+
+ case SSL_EARLY_DATA_FINISHED_READING:
+ case SSL_EARLY_DATA_READ_RETRY:
+ early_data_state = s->early_data_state;
+ /* We are a server writing to an unauthenticated client */
+ s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
+ ret = SSL_write_ex(s, buf, num, written);
+ /* The buffering BIO is still in place */
+ if (ret)
+ (void)BIO_flush(s->wbio);
+ s->early_data_state = early_data_state;
+ return ret;
+
+ default:
+ SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+}
+
+int SSL_shutdown(SSL *s)
+{
+ /*
+ * Note that this function behaves differently from what one might
+ * expect. Return values are 0 for no success (yet), 1 for success; but
+ * calling it once is usually not enough, even if blocking I/O is used
+ * (see ssl3_shutdown).
+ */
+
+ if (s->handshake_func == NULL) {
+ SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
+ return -1;
+ }
+
+ if (!SSL_in_init(s)) {
+ if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+ struct ssl_async_args args;
+
+ memset(&args, 0, sizeof(args));
+ args.s = s;
+ args.type = OTHERFUNC;
+ args.f.func_other = s->method->ssl_shutdown;
+
+ return ssl_start_async_job(s, &args, ssl_io_intern);
+ } else {
+ return s->method->ssl_shutdown(s);
+ }
+ } else {
+ SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
+ return -1;
+ }
+}
+
+int SSL_key_update(SSL *s, int updatetype)
+{
+ /*
+ * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
+ * negotiated, and that it is appropriate to call SSL_key_update() instead
+ * of SSL_renegotiate().
+ */
+ if (!SSL_IS_TLS13(s)) {
+ SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION);
+ return 0;
+ }
+
+ if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
+ && updatetype != SSL_KEY_UPDATE_REQUESTED) {
+ SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE);
+ return 0;
+ }
+
+ if (!SSL_is_init_finished(s)) {
+ SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT);
+ return 0;
+ }
+
+ if (RECORD_LAYER_write_pending(&s->rlayer)) {
+ SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_BAD_WRITE_RETRY);
+ return 0;
+ }
+
+ ossl_statem_set_in_init(s, 1);
+ s->key_update = updatetype;
+ return 1;
+}
+
+int SSL_get_key_update_type(const SSL *s)
+{
+ return s->key_update;
+}
+
+int SSL_renegotiate(SSL *s)
+{
+ if (SSL_IS_TLS13(s)) {
+ SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION);
+ return 0;
+ }
+
+ if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
+ SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION);
+ return 0;
+ }
+
+ s->renegotiate = 1;
+ s->new_session = 1;
+
+ return s->method->ssl_renegotiate(s);
+}
+
+int SSL_renegotiate_abbreviated(SSL *s)
+{
+ if (SSL_IS_TLS13(s)) {
+ SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION);
+ return 0;
+ }
+
+ if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
+ SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION);
+ return 0;
+ }
+
+ s->renegotiate = 1;
+ s->new_session = 0;
+
+ return s->method->ssl_renegotiate(s);
+}
+
+int SSL_renegotiate_pending(const SSL *s)
+{
+ /*
+ * becomes true when negotiation is requested; false again once a
+ * handshake has finished
+ */
+ return (s->renegotiate != 0);
+}
+
+long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
+{
+ long l;
+
+ switch (cmd) {
+ case SSL_CTRL_GET_READ_AHEAD:
+ return RECORD_LAYER_get_read_ahead(&s->rlayer);
+ case SSL_CTRL_SET_READ_AHEAD:
+ l = RECORD_LAYER_get_read_ahead(&s->rlayer);
+ RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
+ return l;
+
+ case SSL_CTRL_SET_MSG_CALLBACK_ARG:
+ s->msg_callback_arg = parg;
+ return 1;
+
+ case SSL_CTRL_MODE:
+ return (s->mode |= larg);
+ case SSL_CTRL_CLEAR_MODE:
+ return (s->mode &= ~larg);
+ case SSL_CTRL_GET_MAX_CERT_LIST:
+ return (long)s->max_cert_list;
+ case SSL_CTRL_SET_MAX_CERT_LIST:
+ if (larg < 0)
+ return 0;
+ l = (long)s->max_cert_list;
+ s->max_cert_list = (size_t)larg;
+ return l;
+ case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
+ if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
+ return 0;
+ s->max_send_fragment = larg;
+ if (s->max_send_fragment < s->split_send_fragment)
+ s->split_send_fragment = s->max_send_fragment;
+ return 1;
+ case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
+ if ((size_t)larg > s->max_send_fragment || larg == 0)
+ return 0;
+ s->split_send_fragment = larg;
+ return 1;
+ case SSL_CTRL_SET_MAX_PIPELINES:
+ if (larg < 1 || larg > SSL_MAX_PIPELINES)
+ return 0;
+ s->max_pipelines = larg;
+ if (larg > 1)
+ RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
+ return 1;
+ case SSL_CTRL_GET_RI_SUPPORT:
+ if (s->s3)
+ return s->s3->send_connection_binding;
+ else
+ return 0;
+ case SSL_CTRL_CERT_FLAGS:
+ return (s->cert->cert_flags |= larg);
+ case SSL_CTRL_CLEAR_CERT_FLAGS:
+ return (s->cert->cert_flags &= ~larg);
+
+ case SSL_CTRL_GET_RAW_CIPHERLIST:
+ if (parg) {
+ if (s->s3->tmp.ciphers_raw == NULL)
+ return 0;
+ *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
+ return (int)s->s3->tmp.ciphers_rawlen;
+ } else {
+ return TLS_CIPHER_LEN;
+ }
+ case SSL_CTRL_GET_EXTMS_SUPPORT:
+ if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
+ return -1;
+ if (s->session->flags & SSL_SESS_FLAG_EXTMS)
+ return 1;
+ else
+ return 0;
+ case SSL_CTRL_SET_MIN_PROTO_VERSION:
+ return ssl_check_allowed_versions(larg, s->max_proto_version)
+ && ssl_set_version_bound(s->ctx->method->version, (int)larg,
+ &s->min_proto_version);
+ case SSL_CTRL_GET_MIN_PROTO_VERSION:
+ return s->min_proto_version;
+ case SSL_CTRL_SET_MAX_PROTO_VERSION:
+ return ssl_check_allowed_versions(s->min_proto_version, larg)
+ && ssl_set_version_bound(s->ctx->method->version, (int)larg,
+ &s->max_proto_version);
+ case SSL_CTRL_GET_MAX_PROTO_VERSION:
+ return s->max_proto_version;
+ default:
+ return s->method->ssl_ctrl(s, cmd, larg, parg);
+ }
+}
+
+long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
+{
+ switch (cmd) {
+ case SSL_CTRL_SET_MSG_CALLBACK:
+ s->msg_callback = (void (*)
+ (int write_p, int version, int content_type,
+ const void *buf, size_t len, SSL *ssl,
+ void *arg))(fp);
+ return 1;
+
+ default:
+ return s->method->ssl_callback_ctrl(s, cmd, fp);
+ }
+}
+
+LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
+{
+ return ctx->sessions;
+}
+
+long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
+{
+ long l;
+ /* For some cases with ctx == NULL perform syntax checks */
+ if (ctx == NULL) {
+ switch (cmd) {
+#ifndef OPENSSL_NO_EC
+ case SSL_CTRL_SET_GROUPS_LIST:
+ return tls1_set_groups_list(NULL, NULL, parg);
+#endif
+ case SSL_CTRL_SET_SIGALGS_LIST:
+ case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
+ return tls1_set_sigalgs_list(NULL, parg, 0);
+ default:
+ return 0;
+ }
+ }
+
+ switch (cmd) {
+ case SSL_CTRL_GET_READ_AHEAD:
+ return ctx->read_ahead;
+ case SSL_CTRL_SET_READ_AHEAD:
+ l = ctx->read_ahead;
+ ctx->read_ahead = larg;
+ return l;
+
+ case SSL_CTRL_SET_MSG_CALLBACK_ARG:
+ ctx->msg_callback_arg = parg;
+ return 1;
+
+ case SSL_CTRL_GET_MAX_CERT_LIST:
+ return (long)ctx->max_cert_list;
+ case SSL_CTRL_SET_MAX_CERT_LIST:
+ if (larg < 0)
+ return 0;
+ l = (long)ctx->max_cert_list;
+ ctx->max_cert_list = (size_t)larg;
+ return l;
+
+ case SSL_CTRL_SET_SESS_CACHE_SIZE:
+ if (larg < 0)
+ return 0;
+ l = (long)ctx->session_cache_size;
+ ctx->session_cache_size = (size_t)larg;
+ return l;
+ case SSL_CTRL_GET_SESS_CACHE_SIZE:
+ return (long)ctx->session_cache_size;
+ case SSL_CTRL_SET_SESS_CACHE_MODE:
+ l = ctx->session_cache_mode;
+ ctx->session_cache_mode = larg;
+ return l;
+ case SSL_CTRL_GET_SESS_CACHE_MODE:
+ return ctx->session_cache_mode;
+
+ case SSL_CTRL_SESS_NUMBER:
+ return lh_SSL_SESSION_num_items(ctx->sessions);
+ case SSL_CTRL_SESS_CONNECT:
+ return tsan_load(&ctx->stats.sess_connect);
+ case SSL_CTRL_SESS_CONNECT_GOOD:
+ return tsan_load(&ctx->stats.sess_connect_good);
+ case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
+ return tsan_load(&ctx->stats.sess_connect_renegotiate);
+ case SSL_CTRL_SESS_ACCEPT:
+ return tsan_load(&ctx->stats.sess_accept);
+ case SSL_CTRL_SESS_ACCEPT_GOOD:
+ return tsan_load(&ctx->stats.sess_accept_good);
+ case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
+ return tsan_load(&ctx->stats.sess_accept_renegotiate);
+ case SSL_CTRL_SESS_HIT:
+ return tsan_load(&ctx->stats.sess_hit);
+ case SSL_CTRL_SESS_CB_HIT:
+ return tsan_load(&ctx->stats.sess_cb_hit);
+ case SSL_CTRL_SESS_MISSES:
+ return tsan_load(&ctx->stats.sess_miss);
+ case SSL_CTRL_SESS_TIMEOUTS:
+ return tsan_load(&ctx->stats.sess_timeout);
+ case SSL_CTRL_SESS_CACHE_FULL:
+ return tsan_load(&ctx->stats.sess_cache_full);
+ case SSL_CTRL_MODE:
+ return (ctx->mode |= larg);
+ case SSL_CTRL_CLEAR_MODE:
+ return (ctx->mode &= ~larg);
+ case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
+ if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
+ return 0;
+ ctx->max_send_fragment = larg;
+ if (ctx->max_send_fragment < ctx->split_send_fragment)
+ ctx->split_send_fragment = ctx->max_send_fragment;
+ return 1;
+ case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
+ if ((size_t)larg > ctx->max_send_fragment || larg == 0)
+ return 0;
+ ctx->split_send_fragment = larg;
+ return 1;
+ case SSL_CTRL_SET_MAX_PIPELINES:
+ if (larg < 1 || larg > SSL_MAX_PIPELINES)
+ return 0;
+ ctx->max_pipelines = larg;
+ return 1;
+ case SSL_CTRL_CERT_FLAGS:
+ return (ctx->cert->cert_flags |= larg);
+ case SSL_CTRL_CLEAR_CERT_FLAGS:
+ return (ctx->cert->cert_flags &= ~larg);
+ case SSL_CTRL_SET_MIN_PROTO_VERSION:
+ return ssl_check_allowed_versions(larg, ctx->max_proto_version)
+ && ssl_set_version_bound(ctx->method->version, (int)larg,
+ &ctx->min_proto_version);
+ case SSL_CTRL_GET_MIN_PROTO_VERSION:
+ return ctx->min_proto_version;
+ case SSL_CTRL_SET_MAX_PROTO_VERSION:
+ return ssl_check_allowed_versions(ctx->min_proto_version, larg)
+ && ssl_set_version_bound(ctx->method->version, (int)larg,
+ &ctx->max_proto_version);
+ case SSL_CTRL_GET_MAX_PROTO_VERSION:
+ return ctx->max_proto_version;
+ default:
+ return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
+ }
+}
+
+long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
+{
+ switch (cmd) {
+ case SSL_CTRL_SET_MSG_CALLBACK:
+ ctx->msg_callback = (void (*)
+ (int write_p, int version, int content_type,
+ const void *buf, size_t len, SSL *ssl,
+ void *arg))(fp);
+ return 1;
+
+ default:
+ return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
+ }
+}
+
+int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
+{
+ if (a->id > b->id)
+ return 1;
+ if (a->id < b->id)
+ return -1;
+ return 0;
+}
+
+int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
+ const SSL_CIPHER *const *bp)
+{
+ if ((*ap)->id > (*bp)->id)
+ return 1;
+ if ((*ap)->id < (*bp)->id)
+ return -1;
+ return 0;
+}
+
+/** return a STACK of the ciphers available for the SSL and in order of
+ * preference */
+STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
+{
+ if (s != NULL) {
+ if (s->cipher_list != NULL) {
+ return s->cipher_list;
+ } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
+ return s->ctx->cipher_list;
+ }
+ }
+ return NULL;
+}
+
+STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
+{
+ if ((s == NULL) || !s->server)
+ return NULL;
+ return s->peer_ciphers;
+}
+
+STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
+{
+ STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
+ int i;
+
+ ciphers = SSL_get_ciphers(s);
+ if (!ciphers)
+ return NULL;
+ if (!ssl_set_client_disabled(s))
+ return NULL;
+ for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
+ const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
+ if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
+ if (!sk)
+ sk = sk_SSL_CIPHER_new_null();
+ if (!sk)
+ return NULL;
+ if (!sk_SSL_CIPHER_push(sk, c)) {
+ sk_SSL_CIPHER_free(sk);
+ return NULL;
+ }
+ }
+ }
+ return sk;
+}
+
+/** return a STACK of the ciphers available for the SSL and in order of
+ * algorithm id */
+STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
+{
+ if (s != NULL) {
+ if (s->cipher_list_by_id != NULL) {
+ return s->cipher_list_by_id;
+ } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
+ return s->ctx->cipher_list_by_id;
+ }
+ }
+ return NULL;
+}
+
+/** The old interface to get the same thing as SSL_get_ciphers() */
+const char *SSL_get_cipher_list(const SSL *s, int n)
+{
+ const SSL_CIPHER *c;
+ STACK_OF(SSL_CIPHER) *sk;
+
+ if (s == NULL)
+ return NULL;
+ sk = SSL_get_ciphers(s);
+ if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
+ return NULL;
+ c = sk_SSL_CIPHER_value(sk, n);
+ if (c == NULL)
+ return NULL;
+ return c->name;
+}
+
+/** return a STACK of the ciphers available for the SSL_CTX and in order of
+ * preference */
+STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
+{
+ if (ctx != NULL)
+ return ctx->cipher_list;
+ return NULL;
+}
+
+/*
+ * Distinguish between ciphers controlled by set_ciphersuite() and
+ * set_cipher_list() when counting.
+ */
+static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
+{
+ int i, num = 0;
+ const SSL_CIPHER *c;
+
+ if (sk == NULL)
+ return 0;
+ for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
+ c = sk_SSL_CIPHER_value(sk, i);
+ if (c->min_tls >= TLS1_3_VERSION)
+ continue;
+ num++;
+ }
+ return num;
+}
+
+/** specify the ciphers to be used by default by the SSL_CTX */
+int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
+{
+ STACK_OF(SSL_CIPHER) *sk;
+
+ sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites,
+ &ctx->cipher_list, &ctx->cipher_list_by_id, str,
+ ctx->cert);
+ /*
+ * ssl_create_cipher_list may return an empty stack if it was unable to
+ * find a cipher matching the given rule string (for example if the rule
+ * string specifies a cipher which has been disabled). This is not an
+ * error as far as ssl_create_cipher_list is concerned, and hence
+ * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
+ */
+ if (sk == NULL)
+ return 0;
+ else if (cipher_list_tls12_num(sk) == 0) {
+ SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
+ return 0;
+ }
+ return 1;
+}
+
+/** specify the ciphers to be used by the SSL */
+int SSL_set_cipher_list(SSL *s, const char *str)
+{
+ STACK_OF(SSL_CIPHER) *sk;
+
+ sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites,
+ &s->cipher_list, &s->cipher_list_by_id, str,
+ s->cert);
+ /* see comment in SSL_CTX_set_cipher_list */
+ if (sk == NULL)
+ return 0;
+ else if (cipher_list_tls12_num(sk) == 0) {
+ SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
+ return 0;
+ }
+ return 1;
+}
+
+char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
+{
+ char *p;
+ STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
+ const SSL_CIPHER *c;
+ int i;
+
+ if (!s->server
+ || s->peer_ciphers == NULL
+ || size < 2)
+ return NULL;
+
+ p = buf;
+ clntsk = s->peer_ciphers;
+ srvrsk = SSL_get_ciphers(s);
+ if (clntsk == NULL || srvrsk == NULL)
+ return NULL;
+
+ if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
+ return NULL;
+
+ for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
+ int n;
+
+ c = sk_SSL_CIPHER_value(clntsk, i);
+ if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
+ continue;
+
+ n = strlen(c->name);
+ if (n + 1 > size) {
+ if (p != buf)
+ --p;
+ *p = '\0';
+ return buf;
+ }
+ strcpy(p, c->name);
+ p += n;
+ *(p++) = ':';
+ size -= n + 1;
+ }
+ p[-1] = '\0';
+ return buf;
+}
+
+/**
+ * Return the requested servername (SNI) value. Note that the behaviour varies
+ * depending on:
+ * - whether this is called by the client or the server,
+ * - if we are before or during/after the handshake,
+ * - if a resumption or normal handshake is being attempted/has occurred
+ * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
+ *
+ * Note that only the host_name type is defined (RFC 3546).
+ */
+const char *SSL_get_servername(const SSL *s, const int type)
+{
+ /*
+ * If we don't know if we are the client or the server yet then we assume
+ * client.
+ */
+ int server = s->handshake_func == NULL ? 0 : s->server;
+ if (type != TLSEXT_NAMETYPE_host_name)
+ return NULL;
+
+ if (server) {
+ /**
+ * Server side
+ * In TLSv1.3 on the server SNI is not associated with the session
+ * but in TLSv1.2 or below it is.
+ *
+ * Before the handshake:
+ * - return NULL
+ *
+ * During/after the handshake (TLSv1.2 or below resumption occurred):
+ * - If a servername was accepted by the server in the original
+ * handshake then it will return that servername, or NULL otherwise.
+ *
+ * During/after the handshake (TLSv1.2 or below resumption did not occur):
+ * - The function will return the servername requested by the client in
+ * this handshake or NULL if none was requested.
+ */
+ if (s->hit && !SSL_IS_TLS13(s))
+ return s->session->ext.hostname;
+ } else {
+ /**
+ * Client side
+ *
+ * Before the handshake:
+ * - If a servername has been set via a call to
+ * SSL_set_tlsext_host_name() then it will return that servername
+ * - If one has not been set, but a TLSv1.2 resumption is being
+ * attempted and the session from the original handshake had a
+ * servername accepted by the server then it will return that
+ * servername
+ * - Otherwise it returns NULL
+ *
+ * During/after the handshake (TLSv1.2 or below resumption occurred):
+ * - If the session from the original handshake had a servername accepted
+ * by the server then it will return that servername.
+ * - Otherwise it returns the servername set via
+ * SSL_set_tlsext_host_name() (or NULL if it was not called).
+ *
+ * During/after the handshake (TLSv1.2 or below resumption did not occur):
+ * - It will return the servername set via SSL_set_tlsext_host_name()
+ * (or NULL if it was not called).
+ */
+ if (SSL_in_before(s)) {
+ if (s->ext.hostname == NULL
+ && s->session != NULL
+ && s->session->ssl_version != TLS1_3_VERSION)
+ return s->session->ext.hostname;
+ } else {
+ if (!SSL_IS_TLS13(s) && s->hit && s->session->ext.hostname != NULL)
+ return s->session->ext.hostname;
+ }
+ }
+
+ return s->ext.hostname;
+}
+
+int SSL_get_servername_type(const SSL *s)
+{
+ if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
+ return TLSEXT_NAMETYPE_host_name;
+ return -1;
+}
+
+/*
+ * SSL_select_next_proto implements the standard protocol selection. It is
+ * expected that this function is called from the callback set by
+ * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
+ * vector of 8-bit, length prefixed byte strings. The length byte itself is
+ * not included in the length. A byte string of length 0 is invalid. No byte
+ * string may be truncated. The current, but experimental algorithm for
+ * selecting the protocol is: 1) If the server doesn't support NPN then this
+ * is indicated to the callback. In this case, the client application has to
+ * abort the connection or have a default application level protocol. 2) If
+ * the server supports NPN, but advertises an empty list then the client
+ * selects the first protocol in its list, but indicates via the API that this
+ * fallback case was enacted. 3) Otherwise, the client finds the first
+ * protocol in the server's list that it supports and selects this protocol.
+ * This is because it's assumed that the server has better information about
+ * which protocol a client should use. 4) If the client doesn't support any
+ * of the server's advertised protocols, then this is treated the same as
+ * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
+ * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
+ */
+int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
+ const unsigned char *server,
+ unsigned int server_len,
+ const unsigned char *client, unsigned int client_len)
+{
+ unsigned int i, j;
+ const unsigned char *result;
+ int status = OPENSSL_NPN_UNSUPPORTED;
+
+ /*
+ * For each protocol in server preference order, see if we support it.
+ */
+ for (i = 0; i < server_len;) {
+ for (j = 0; j < client_len;) {
+ if (server[i] == client[j] &&
+ memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
+ /* We found a match */
+ result = &server[i];
+ status = OPENSSL_NPN_NEGOTIATED;
+ goto found;
+ }
+ j += client[j];
+ j++;
+ }
+ i += server[i];
+ i++;
+ }
+
+ /* There's no overlap between our protocols and the server's list. */
+ result = client;
+ status = OPENSSL_NPN_NO_OVERLAP;
+
+ found:
+ *out = (unsigned char *)result + 1;
+ *outlen = result[0];
+ return status;
+}
+
+#ifndef OPENSSL_NO_NEXTPROTONEG
+/*
+ * SSL_get0_next_proto_negotiated sets *data and *len to point to the
+ * client's requested protocol for this connection and returns 0. If the
+ * client didn't request any protocol, then *data is set to NULL. Note that
+ * the client can request any protocol it chooses. The value returned from
+ * this function need not be a member of the list of supported protocols
+ * provided by the callback.
+ */
+void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
+ unsigned *len)
+{
+ *data = s->ext.npn;
+ if (!*data) {
+ *len = 0;
+ } else {
+ *len = (unsigned int)s->ext.npn_len;
+ }
+}
+
+/*
+ * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
+ * a TLS server needs a list of supported protocols for Next Protocol
+ * Negotiation. The returned list must be in wire format. The list is
+ * returned by setting |out| to point to it and |outlen| to its length. This
+ * memory will not be modified, but one should assume that the SSL* keeps a
+ * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
+ * wishes to advertise. Otherwise, no such extension will be included in the
+ * ServerHello.
+ */
+void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
+ SSL_CTX_npn_advertised_cb_func cb,
+ void *arg)
+{
+ ctx->ext.npn_advertised_cb = cb;
+ ctx->ext.npn_advertised_cb_arg = arg;
+}
+
+/*
+ * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
+ * client needs to select a protocol from the server's provided list. |out|
+ * must be set to point to the selected protocol (which may be within |in|).
+ * The length of the protocol name must be written into |outlen|. The
+ * server's advertised protocols are provided in |in| and |inlen|. The
+ * callback can assume that |in| is syntactically valid. The client must
+ * select a protocol. It is fatal to the connection if this callback returns
+ * a value other than SSL_TLSEXT_ERR_OK.
+ */
+void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
+ SSL_CTX_npn_select_cb_func cb,
+ void *arg)
+{
+ ctx->ext.npn_select_cb = cb;
+ ctx->ext.npn_select_cb_arg = arg;
+}
+#endif
+
+static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
+{
+ unsigned int idx;
+
+ if (protos_len < 2 || protos == NULL)
+ return 0;
+
+ for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
+ if (protos[idx] == 0)
+ return 0;
+ }
+ return idx == protos_len;
+}
+/*
+ * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
+ * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
+ * length-prefixed strings). Returns 0 on success.
+ */
+int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
+ unsigned int protos_len)
+{
+ unsigned char *alpn;
+
+ if (protos_len == 0 || protos == NULL) {
+ OPENSSL_free(ctx->ext.alpn);
+ ctx->ext.alpn = NULL;
+ ctx->ext.alpn_len = 0;
+ return 0;
+ }
+ /* Not valid per RFC */
+ if (!alpn_value_ok(protos, protos_len))
+ return 1;
+
+ alpn = OPENSSL_memdup(protos, protos_len);
+ if (alpn == NULL) {
+ SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
+ return 1;
+ }
+ OPENSSL_free(ctx->ext.alpn);
+ ctx->ext.alpn = alpn;
+ ctx->ext.alpn_len = protos_len;
+
+ return 0;
+}
+
+/*
+ * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
+ * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
+ * length-prefixed strings). Returns 0 on success.
+ */
+int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
+ unsigned int protos_len)
+{
+ unsigned char *alpn;
+
+ if (protos_len == 0 || protos == NULL) {
+ OPENSSL_free(ssl->ext.alpn);
+ ssl->ext.alpn = NULL;
+ ssl->ext.alpn_len = 0;
+ return 0;
+ }
+ /* Not valid per RFC */
+ if (!alpn_value_ok(protos, protos_len))
+ return 1;
+
+ alpn = OPENSSL_memdup(protos, protos_len);
+ if (alpn == NULL) {
+ SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
+ return 1;
+ }
+ OPENSSL_free(ssl->ext.alpn);
+ ssl->ext.alpn = alpn;
+ ssl->ext.alpn_len = protos_len;
+
+ return 0;
+}
+
+/*
+ * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
+ * called during ClientHello processing in order to select an ALPN protocol
+ * from the client's list of offered protocols.
+ */
+void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
+ SSL_CTX_alpn_select_cb_func cb,
+ void *arg)
+{
+ ctx->ext.alpn_select_cb = cb;
+ ctx->ext.alpn_select_cb_arg = arg;
+}
+
+/*
+ * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
+ * On return it sets |*data| to point to |*len| bytes of protocol name
+ * (not including the leading length-prefix byte). If the server didn't
+ * respond with a negotiated protocol then |*len| will be zero.
+ */
+void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
+ unsigned int *len)
+{
+ *data = NULL;
+ if (ssl->s3)
+ *data = ssl->s3->alpn_selected;
+ if (*data == NULL)
+ *len = 0;
+ else
+ *len = (unsigned int)ssl->s3->alpn_selected_len;
+}
+
+int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
+ const char *label, size_t llen,
+ const unsigned char *context, size_t contextlen,
+ int use_context)
+{
+ if (s->session == NULL
+ || (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER))
+ return -1;
+
+ return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
+ llen, context,
+ contextlen, use_context);
+}
+
+int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
+ const char *label, size_t llen,
+ const unsigned char *context,
+ size_t contextlen)
+{
+ if (s->version != TLS1_3_VERSION)
+ return 0;
+
+ return tls13_export_keying_material_early(s, out, olen, label, llen,
+ context, contextlen);
+}
+
+static unsigned long ssl_session_hash(const SSL_SESSION *a)
+{
+ const unsigned char *session_id = a->session_id;
+ unsigned long l;
+ unsigned char tmp_storage[4];
+
+ if (a->session_id_length < sizeof(tmp_storage)) {
+ memset(tmp_storage, 0, sizeof(tmp_storage));
+ memcpy(tmp_storage, a->session_id, a->session_id_length);
+ session_id = tmp_storage;
+ }
+
+ l = (unsigned long)
+ ((unsigned long)session_id[0]) |
+ ((unsigned long)session_id[1] << 8L) |
+ ((unsigned long)session_id[2] << 16L) |
+ ((unsigned long)session_id[3] << 24L);
+ return l;
+}
+
+/*
+ * NB: If this function (or indeed the hash function which uses a sort of
+ * coarser function than this one) is changed, ensure
+ * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
+ * being able to construct an SSL_SESSION that will collide with any existing
+ * session with a matching session ID.
+ */
+static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
+{
+ if (a->ssl_version != b->ssl_version)
+ return 1;
+ if (a->session_id_length != b->session_id_length)
+ return 1;
+ return memcmp(a->session_id, b->session_id, a->session_id_length);
+}
+
+/*
+ * These wrapper functions should remain rather than redeclaring
+ * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
+ * variable. The reason is that the functions aren't static, they're exposed
+ * via ssl.h.
+ */
+
+SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
+{
+ SSL_CTX *ret = NULL;
+
+ if (meth == NULL) {
+ SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
+ return NULL;
+ }
+
+ if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
+ return NULL;
+
+ if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
+ SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
+ goto err;
+ }
+ ret = OPENSSL_zalloc(sizeof(*ret));
+ if (ret == NULL)
+ goto err;
+
+ ret->method = meth;
+ ret->min_proto_version = 0;
+ ret->max_proto_version = 0;
+ ret->mode = SSL_MODE_AUTO_RETRY;
+ ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
+ ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
+ /* We take the system default. */
+ ret->session_timeout = meth->get_timeout();
+ ret->references = 1;
+ ret->lock = CRYPTO_THREAD_lock_new();
+ if (ret->lock == NULL) {
+ SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(ret);
+ return NULL;
+ }
+ ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
+ ret->verify_mode = SSL_VERIFY_NONE;
+ if ((ret->cert = ssl_cert_new()) == NULL)
+ goto err;
+
+ ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
+ if (ret->sessions == NULL)
+ goto err;
+ ret->cert_store = X509_STORE_new();
+ if (ret->cert_store == NULL)
+ goto err;
+#ifndef OPENSSL_NO_CT
+ ret->ctlog_store = CTLOG_STORE_new();
+ if (ret->ctlog_store == NULL)
+ goto err;
+#endif
+
+ if (!SSL_CTX_set_ciphersuites(ret, TLS_DEFAULT_CIPHERSUITES))
+ goto err;
+
+ if (!ssl_create_cipher_list(ret->method,
+ ret->tls13_ciphersuites,
+ &ret->cipher_list, &ret->cipher_list_by_id,
+ SSL_DEFAULT_CIPHER_LIST, ret->cert)
+ || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
+ SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
+ goto err2;
+ }
+
+ ret->param = X509_VERIFY_PARAM_new();
+ if (ret->param == NULL)
+ goto err;
+
+ if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
+ SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
+ goto err2;
+ }
+ if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
+ SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
+ goto err2;
+ }
+
+ if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
+ goto err;
+
+ if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
+ goto err;
+
+ if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
+ goto err;
+
+ if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
+ goto err;
+
+ /* No compression for DTLS */
+ if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
+ ret->comp_methods = SSL_COMP_get_compression_methods();
+
+ ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
+ ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
+
+ /* Setup RFC5077 ticket keys */
+ if ((RAND_bytes(ret->ext.tick_key_name,
+ sizeof(ret->ext.tick_key_name)) <= 0)
+ || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key,
+ sizeof(ret->ext.secure->tick_hmac_key)) <= 0)
+ || (RAND_priv_bytes(ret->ext.secure->tick_aes_key,
+ sizeof(ret->ext.secure->tick_aes_key)) <= 0))
+ ret->options |= SSL_OP_NO_TICKET;
+
+ if (RAND_priv_bytes(ret->ext.cookie_hmac_key,
+ sizeof(ret->ext.cookie_hmac_key)) <= 0)
+ goto err;
+
+#ifndef OPENSSL_NO_SRP
+ if (!SSL_CTX_SRP_CTX_init(ret))
+ goto err;
+#endif
+#ifndef OPENSSL_NO_ENGINE
+# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
+# define eng_strx(x) #x
+# define eng_str(x) eng_strx(x)
+ /* Use specific client engine automatically... ignore errors */
+ {
+ ENGINE *eng;
+ eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
+ if (!eng) {
+ ERR_clear_error();
+ ENGINE_load_builtin_engines();
+ eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
+ }
+ if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
+ ERR_clear_error();
+ }
+# endif
+#endif
+ /*
+ * Default is to connect to non-RI servers. When RI is more widely
+ * deployed might change this.
+ */
+ ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
+ /*
+ * Disable compression by default to prevent CRIME. Applications can
+ * re-enable compression by configuring
+ * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
+ * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
+ * middlebox compatibility by default. This may be disabled by default in
+ * a later OpenSSL version.
+ */
+ ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
+
+ ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
+
+ /*
+ * We cannot usefully set a default max_early_data here (which gets
+ * propagated in SSL_new(), for the following reason: setting the
+ * SSL field causes tls_construct_stoc_early_data() to tell the
+ * client that early data will be accepted when constructing a TLS 1.3
+ * session ticket, and the client will accordingly send us early data
+ * when using that ticket (if the client has early data to send).
+ * However, in order for the early data to actually be consumed by
+ * the application, the application must also have calls to
+ * SSL_read_early_data(); otherwise we'll just skip past the early data
+ * and ignore it. So, since the application must add calls to
+ * SSL_read_early_data(), we also require them to add
+ * calls to SSL_CTX_set_max_early_data() in order to use early data,
+ * eliminating the bandwidth-wasting early data in the case described
+ * above.
+ */
+ ret->max_early_data = 0;
+
+ /*
+ * Default recv_max_early_data is a fully loaded single record. Could be
+ * split across multiple records in practice. We set this differently to
+ * max_early_data so that, in the default case, we do not advertise any
+ * support for early_data, but if a client were to send us some (e.g.
+ * because of an old, stale ticket) then we will tolerate it and skip over
+ * it.
+ */
+ ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
+
+ /* By default we send two session tickets automatically in TLSv1.3 */
+ ret->num_tickets = 2;
+
+ ssl_ctx_system_config(ret);
+
+ return ret;
+ err:
+ SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
+ err2:
+ SSL_CTX_free(ret);
+ return NULL;
+}
+
+int SSL_CTX_up_ref(SSL_CTX *ctx)
+{
+ int i;
+
+ if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("SSL_CTX", ctx);
+ REF_ASSERT_ISNT(i < 2);
+ return ((i > 1) ? 1 : 0);
+}
+
+void SSL_CTX_free(SSL_CTX *a)
+{
+ int i;
+
+ if (a == NULL)
+ return;
+
+ CRYPTO_DOWN_REF(&a->references, &i, a->lock);
+ REF_PRINT_COUNT("SSL_CTX", a);
+ if (i > 0)
+ return;
+ REF_ASSERT_ISNT(i < 0);
+
+ X509_VERIFY_PARAM_free(a->param);
+ dane_ctx_final(&a->dane);
+
+ /*
+ * Free internal session cache. However: the remove_cb() may reference
+ * the ex_data of SSL_CTX, thus the ex_data store can only be removed
+ * after the sessions were flushed.
+ * As the ex_data handling routines might also touch the session cache,
+ * the most secure solution seems to be: empty (flush) the cache, then
+ * free ex_data, then finally free the cache.
+ * (See ticket [openssl.org #212].)
+ */
+ if (a->sessions != NULL)
+ SSL_CTX_flush_sessions(a, 0);
+
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
+ lh_SSL_SESSION_free(a->sessions);
+ X509_STORE_free(a->cert_store);
+#ifndef OPENSSL_NO_CT
+ CTLOG_STORE_free(a->ctlog_store);
+#endif
+ sk_SSL_CIPHER_free(a->cipher_list);
+ sk_SSL_CIPHER_free(a->cipher_list_by_id);
+ sk_SSL_CIPHER_free(a->tls13_ciphersuites);
+ ssl_cert_free(a->cert);
+ sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
+ sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
+ sk_X509_pop_free(a->extra_certs, X509_free);
+ a->comp_methods = NULL;
+#ifndef OPENSSL_NO_SRTP
+ sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
+#endif
+#ifndef OPENSSL_NO_SRP
+ SSL_CTX_SRP_CTX_free(a);
+#endif
+#ifndef OPENSSL_NO_ENGINE
+ ENGINE_finish(a->client_cert_engine);
+#endif
+
+#ifndef OPENSSL_NO_EC
+ OPENSSL_free(a->ext.ecpointformats);
+ OPENSSL_free(a->ext.supportedgroups);
+#endif
+ OPENSSL_free(a->ext.alpn);
+ OPENSSL_secure_free(a->ext.secure);
+
+ CRYPTO_THREAD_lock_free(a->lock);
+
+ OPENSSL_free(a);
+}
+
+void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
+{
+ ctx->default_passwd_callback = cb;
+}
+
+void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
+{
+ ctx->default_passwd_callback_userdata = u;
+}
+
+pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
+{
+ return ctx->default_passwd_callback;
+}
+
+void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
+{
+ return ctx->default_passwd_callback_userdata;
+}
+
+void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
+{
+ s->default_passwd_callback = cb;
+}
+
+void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
+{
+ s->default_passwd_callback_userdata = u;
+}
+
+pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
+{
+ return s->default_passwd_callback;
+}
+
+void *SSL_get_default_passwd_cb_userdata(SSL *s)
+{
+ return s->default_passwd_callback_userdata;
+}
+
+void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
+ int (*cb) (X509_STORE_CTX *, void *),
+ void *arg)
+{
+ ctx->app_verify_callback = cb;
+ ctx->app_verify_arg = arg;
+}
+
+void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
+ int (*cb) (int, X509_STORE_CTX *))
+{
+ ctx->verify_mode = mode;
+ ctx->default_verify_callback = cb;
+}
+
+void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
+{
+ X509_VERIFY_PARAM_set_depth(ctx->param, depth);
+}
+
+void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
+{
+ ssl_cert_set_cert_cb(c->cert, cb, arg);
+}
+
+void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
+{
+ ssl_cert_set_cert_cb(s->cert, cb, arg);
+}
+
+void ssl_set_masks(SSL *s)
+{
+ CERT *c = s->cert;
+ uint32_t *pvalid = s->s3->tmp.valid_flags;
+ int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
+ unsigned long mask_k, mask_a;
+#ifndef OPENSSL_NO_EC
+ int have_ecc_cert, ecdsa_ok;
+#endif
+ if (c == NULL)
+ return;
+
+#ifndef OPENSSL_NO_DH
+ dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
+#else
+ dh_tmp = 0;
+#endif
+
+ rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
+ rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
+ dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
+#ifndef OPENSSL_NO_EC
+ have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
+#endif
+ mask_k = 0;
+ mask_a = 0;
+
+#ifdef CIPHER_DEBUG
+ fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n",
+ dh_tmp, rsa_enc, rsa_sign, dsa_sign);
+#endif
+
+#ifndef OPENSSL_NO_GOST
+ if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
+ mask_k |= SSL_kGOST;
+ mask_a |= SSL_aGOST12;
+ }
+ if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
+ mask_k |= SSL_kGOST;
+ mask_a |= SSL_aGOST12;
+ }
+ if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
+ mask_k |= SSL_kGOST;
+ mask_a |= SSL_aGOST01;
+ }
+#endif
+
+ if (rsa_enc)
+ mask_k |= SSL_kRSA;
+
+ if (dh_tmp)
+ mask_k |= SSL_kDHE;
+
+ /*
+ * If we only have an RSA-PSS certificate allow RSA authentication
+ * if TLS 1.2 and peer supports it.
+ */
+
+ if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
+ && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
+ && TLS1_get_version(s) == TLS1_2_VERSION))
+ mask_a |= SSL_aRSA;
+
+ if (dsa_sign) {
+ mask_a |= SSL_aDSS;
+ }
+
+ mask_a |= SSL_aNULL;
+
+ /*
+ * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
+ * depending on the key usage extension.
+ */
+#ifndef OPENSSL_NO_EC
+ if (have_ecc_cert) {
+ uint32_t ex_kusage;
+ ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
+ ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
+ if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
+ ecdsa_ok = 0;
+ if (ecdsa_ok)
+ mask_a |= SSL_aECDSA;
+ }
+ /* Allow Ed25519 for TLS 1.2 if peer supports it */
+ if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
+ && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
+ && TLS1_get_version(s) == TLS1_2_VERSION)
+ mask_a |= SSL_aECDSA;
+
+ /* Allow Ed448 for TLS 1.2 if peer supports it */
+ if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
+ && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
+ && TLS1_get_version(s) == TLS1_2_VERSION)
+ mask_a |= SSL_aECDSA;
+#endif
+
+#ifndef OPENSSL_NO_EC
+ mask_k |= SSL_kECDHE;
+#endif
+
+#ifndef OPENSSL_NO_PSK
+ mask_k |= SSL_kPSK;
+ mask_a |= SSL_aPSK;
+ if (mask_k & SSL_kRSA)
+ mask_k |= SSL_kRSAPSK;
+ if (mask_k & SSL_kDHE)
+ mask_k |= SSL_kDHEPSK;
+ if (mask_k & SSL_kECDHE)
+ mask_k |= SSL_kECDHEPSK;
+#endif
+
+ s->s3->tmp.mask_k = mask_k;
+ s->s3->tmp.mask_a = mask_a;
+}
+
+#ifndef OPENSSL_NO_EC
+
+int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
+{
+ if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
+ /* key usage, if present, must allow signing */
+ if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
+ SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
+ SSL_R_ECC_CERT_NOT_FOR_SIGNING);
+ return 0;
+ }
+ }
+ return 1; /* all checks are ok */
+}
+
+#endif
+
+int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
+ size_t *serverinfo_length)
+{
+ CERT_PKEY *cpk = s->s3->tmp.cert;
+ *serverinfo_length = 0;
+
+ if (cpk == NULL || cpk->serverinfo == NULL)
+ return 0;
+
+ *serverinfo = cpk->serverinfo;
+ *serverinfo_length = cpk->serverinfo_length;
+ return 1;
+}
+
+void ssl_update_cache(SSL *s, int mode)
+{
+ int i;
+
+ /*
+ * If the session_id_length is 0, we are not supposed to cache it, and it
+ * would be rather hard to do anyway :-)
+ */
+ if (s->session->session_id_length == 0)
+ return;
+
+ /*
+ * If sid_ctx_length is 0 there is no specific application context
+ * associated with this session, so when we try to resume it and
+ * SSL_VERIFY_PEER is requested to verify the client identity, we have no
+ * indication that this is actually a session for the proper application
+ * context, and the *handshake* will fail, not just the resumption attempt.
+ * Do not cache (on the server) these sessions that are not resumable
+ * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
+ */
+ if (s->server && s->session->sid_ctx_length == 0
+ && (s->verify_mode & SSL_VERIFY_PEER) != 0)
+ return;
+
+ i = s->session_ctx->session_cache_mode;
+ if ((i & mode) != 0
+ && (!s->hit || SSL_IS_TLS13(s))) {
+ /*
+ * Add the session to the internal cache. In server side TLSv1.3 we
+ * normally don't do this because by default it's a full stateless ticket
+ * with only a dummy session id so there is no reason to cache it,
+ * unless:
+ * - we are doing early_data, in which case we cache so that we can
+ * detect replays
+ * - the application has set a remove_session_cb so needs to know about
+ * session timeout events
+ * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
+ */
+ if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
+ && (!SSL_IS_TLS13(s)
+ || !s->server
+ || (s->max_early_data > 0
+ && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
+ || s->session_ctx->remove_session_cb != NULL
+ || (s->options & SSL_OP_NO_TICKET) != 0))
+ SSL_CTX_add_session(s->session_ctx, s->session);
+
+ /*
+ * Add the session to the external cache. We do this even in server side
+ * TLSv1.3 without early data because some applications just want to
+ * know about the creation of a session and aren't doing a full cache.
+ */
+ if (s->session_ctx->new_session_cb != NULL) {
+ SSL_SESSION_up_ref(s->session);
+ if (!s->session_ctx->new_session_cb(s, s->session))
+ SSL_SESSION_free(s->session);
+ }
+ }
+
+ /* auto flush every 255 connections */
+ if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
+ TSAN_QUALIFIER int *stat;
+ if (mode & SSL_SESS_CACHE_CLIENT)
+ stat = &s->session_ctx->stats.sess_connect_good;
+ else
+ stat = &s->session_ctx->stats.sess_accept_good;
+ if ((tsan_load(stat) & 0xff) == 0xff)
+ SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
+ }
+}
+
+const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
+{
+ return ctx->method;
+}
+
+const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
+{
+ return s->method;
+}
+
+int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
+{
+ int ret = 1;
+
+ if (s->method != meth) {
+ const SSL_METHOD *sm = s->method;
+ int (*hf) (SSL *) = s->handshake_func;
+
+ if (sm->version == meth->version)
+ s->method = meth;
+ else {
+ sm->ssl_free(s);
+ s->method = meth;
+ ret = s->method->ssl_new(s);
+ }
+
+ if (hf == sm->ssl_connect)
+ s->handshake_func = meth->ssl_connect;
+ else if (hf == sm->ssl_accept)
+ s->handshake_func = meth->ssl_accept;
+ }
+ return ret;
+}
+
+int SSL_get_error(const SSL *s, int i)
+{
+ int reason;
+ unsigned long l;
+ BIO *bio;
+
+ if (i > 0)
+ return SSL_ERROR_NONE;
+
+ /*
+ * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
+ * where we do encode the error
+ */
+ if ((l = ERR_peek_error()) != 0) {
+ if (ERR_GET_LIB(l) == ERR_LIB_SYS)
+ return SSL_ERROR_SYSCALL;
+ else
+ return SSL_ERROR_SSL;
+ }
+
+ if (SSL_want_read(s)) {
+ bio = SSL_get_rbio(s);
+ if (BIO_should_read(bio))
+ return SSL_ERROR_WANT_READ;
+ else if (BIO_should_write(bio))
+ /*
+ * This one doesn't make too much sense ... We never try to write
+ * to the rbio, and an application program where rbio and wbio
+ * are separate couldn't even know what it should wait for.
+ * However if we ever set s->rwstate incorrectly (so that we have
+ * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
+ * wbio *are* the same, this test works around that bug; so it
+ * might be safer to keep it.
+ */
+ return SSL_ERROR_WANT_WRITE;
+ else if (BIO_should_io_special(bio)) {
+ reason = BIO_get_retry_reason(bio);
+ if (reason == BIO_RR_CONNECT)
+ return SSL_ERROR_WANT_CONNECT;
+ else if (reason == BIO_RR_ACCEPT)
+ return SSL_ERROR_WANT_ACCEPT;
+ else
+ return SSL_ERROR_SYSCALL; /* unknown */
+ }
+ }
+
+ if (SSL_want_write(s)) {
+ /* Access wbio directly - in order to use the buffered bio if present */
+ bio = s->wbio;
+ if (BIO_should_write(bio))
+ return SSL_ERROR_WANT_WRITE;
+ else if (BIO_should_read(bio))
+ /*
+ * See above (SSL_want_read(s) with BIO_should_write(bio))
+ */
+ return SSL_ERROR_WANT_READ;
+ else if (BIO_should_io_special(bio)) {
+ reason = BIO_get_retry_reason(bio);
+ if (reason == BIO_RR_CONNECT)
+ return SSL_ERROR_WANT_CONNECT;
+ else if (reason == BIO_RR_ACCEPT)
+ return SSL_ERROR_WANT_ACCEPT;
+ else
+ return SSL_ERROR_SYSCALL;
+ }
+ }
+ if (SSL_want_x509_lookup(s))
+ return SSL_ERROR_WANT_X509_LOOKUP;
+ if (SSL_want_async(s))
+ return SSL_ERROR_WANT_ASYNC;
+ if (SSL_want_async_job(s))
+ return SSL_ERROR_WANT_ASYNC_JOB;
+ if (SSL_want_client_hello_cb(s))
+ return SSL_ERROR_WANT_CLIENT_HELLO_CB;
+
+ if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
+ (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
+ return SSL_ERROR_ZERO_RETURN;
+
+ return SSL_ERROR_SYSCALL;
+}
+
+static int ssl_do_handshake_intern(void *vargs)
+{
+ struct ssl_async_args *args;
+ SSL *s;
+
+ args = (struct ssl_async_args *)vargs;
+ s = args->s;
+
+ return s->handshake_func(s);
+}
+
+int SSL_do_handshake(SSL *s)
+{
+ int ret = 1;
+
+ if (s->handshake_func == NULL) {
+ SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
+ return -1;
+ }
+
+ ossl_statem_check_finish_init(s, -1);
+
+ s->method->ssl_renegotiate_check(s, 0);
+
+ if (SSL_in_init(s) || SSL_in_before(s)) {
+ if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+ struct ssl_async_args args;
+
+ memset(&args, 0, sizeof(args));
+ args.s = s;
+
+ ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
+ } else {
+ ret = s->handshake_func(s);
+ }
+ }
+ return ret;
+}
+
+void SSL_set_accept_state(SSL *s)
+{
+ s->server = 1;
+ s->shutdown = 0;
+ ossl_statem_clear(s);
+ s->handshake_func = s->method->ssl_accept;
+ clear_ciphers(s);
+}
+
+void SSL_set_connect_state(SSL *s)
+{
+ s->server = 0;
+ s->shutdown = 0;
+ ossl_statem_clear(s);
+ s->handshake_func = s->method->ssl_connect;
+ clear_ciphers(s);
+}
+
+int ssl_undefined_function(SSL *s)
+{
+ SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+}
+
+int ssl_undefined_void_function(void)
+{
+ SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
+ ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+}
+
+int ssl_undefined_const_function(const SSL *s)
+{
+ return 0;
+}
+
+const SSL_METHOD *ssl_bad_method(int ver)
+{
+ SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return NULL;
+}
+
+const char *ssl_protocol_to_string(int version)
+{
+ switch(version)
+ {
+ case TLS1_3_VERSION:
+ return "TLSv1.3";
+
+ case TLS1_2_VERSION:
+ return "TLSv1.2";
+
+ case TLS1_1_VERSION:
+ return "TLSv1.1";
+
+ case TLS1_VERSION:
+ return "TLSv1";
+
+ case SSL3_VERSION:
+ return "SSLv3";
+
+ case DTLS1_BAD_VER:
+ return "DTLSv0.9";
+
+ case DTLS1_VERSION:
+ return "DTLSv1";
+
+ case DTLS1_2_VERSION:
+ return "DTLSv1.2";
+
+ default:
+ return "unknown";
+ }
+}
+
+const char *SSL_get_version(const SSL *s)
+{
+ return ssl_protocol_to_string(s->version);
+}
+
+static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
+{
+ STACK_OF(X509_NAME) *sk;
+ X509_NAME *xn;
+ int i;
+
+ if (src == NULL) {
+ *dst = NULL;
+ return 1;
+ }
+
+ if ((sk = sk_X509_NAME_new_null()) == NULL)
+ return 0;
+ for (i = 0; i < sk_X509_NAME_num(src); i++) {
+ xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
+ if (xn == NULL) {
+ sk_X509_NAME_pop_free(sk, X509_NAME_free);
+ return 0;
+ }
+ if (sk_X509_NAME_insert(sk, xn, i) == 0) {
+ X509_NAME_free(xn);
+ sk_X509_NAME_pop_free(sk, X509_NAME_free);
+ return 0;
+ }
+ }
+ *dst = sk;
+
+ return 1;
+}
+
+SSL *SSL_dup(SSL *s)
+{
+ SSL *ret;
+ int i;
+
+ /* If we're not quiescent, just up_ref! */
+ if (!SSL_in_init(s) || !SSL_in_before(s)) {
+ CRYPTO_UP_REF(&s->references, &i, s->lock);
+ return s;
+ }
+
+ /*
+ * Otherwise, copy configuration state, and session if set.
+ */
+ if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
+ return NULL;
+
+ if (s->session != NULL) {
+ /*
+ * Arranges to share the same session via up_ref. This "copies"
+ * session-id, SSL_METHOD, sid_ctx, and 'cert'
+ */
+ if (!SSL_copy_session_id(ret, s))
+ goto err;
+ } else {
+ /*
+ * No session has been established yet, so we have to expect that
+ * s->cert or ret->cert will be changed later -- they should not both
+ * point to the same object, and thus we can't use
+ * SSL_copy_session_id.
+ */
+ if (!SSL_set_ssl_method(ret, s->method))
+ goto err;
+
+ if (s->cert != NULL) {
+ ssl_cert_free(ret->cert);
+ ret->cert = ssl_cert_dup(s->cert);
+ if (ret->cert == NULL)
+ goto err;
+ }
+
+ if (!SSL_set_session_id_context(ret, s->sid_ctx,
+ (int)s->sid_ctx_length))
+ goto err;
+ }
+
+ if (!ssl_dane_dup(ret, s))
+ goto err;
+ ret->version = s->version;
+ ret->options = s->options;
+ ret->min_proto_version = s->min_proto_version;
+ ret->max_proto_version = s->max_proto_version;
+ ret->mode = s->mode;
+ SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
+ SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
+ ret->msg_callback = s->msg_callback;
+ ret->msg_callback_arg = s->msg_callback_arg;
+ SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
+ SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
+ ret->generate_session_id = s->generate_session_id;
+
+ SSL_set_info_callback(ret, SSL_get_info_callback(s));
+
+ /* copy app data, a little dangerous perhaps */
+ if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
+ goto err;
+
+ ret->server = s->server;
+ if (s->handshake_func) {
+ if (s->server)
+ SSL_set_accept_state(ret);
+ else
+ SSL_set_connect_state(ret);
+ }
+ ret->shutdown = s->shutdown;
+ ret->hit = s->hit;
+
+ ret->default_passwd_callback = s->default_passwd_callback;
+ ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
+
+ X509_VERIFY_PARAM_inherit(ret->param, s->param);
+
+ /* dup the cipher_list and cipher_list_by_id stacks */
+ if (s->cipher_list != NULL) {
+ if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
+ goto err;
+ }
+ if (s->cipher_list_by_id != NULL)
+ if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
+ == NULL)
+ goto err;
+
+ /* Dup the client_CA list */
+ if (!dup_ca_names(&ret->ca_names, s->ca_names)
+ || !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
+ goto err;
+
+ return ret;
+
+ err:
+ SSL_free(ret);
+ return NULL;
+}
+
+void ssl_clear_cipher_ctx(SSL *s)
+{
+ if (s->enc_read_ctx != NULL) {
+ EVP_CIPHER_CTX_free(s->enc_read_ctx);
+ s->enc_read_ctx = NULL;
+ }
+ if (s->enc_write_ctx != NULL) {
+ EVP_CIPHER_CTX_free(s->enc_write_ctx);
+ s->enc_write_ctx = NULL;
+ }
+#ifndef OPENSSL_NO_COMP
+ COMP_CTX_free(s->expand);
+ s->expand = NULL;
+ COMP_CTX_free(s->compress);
+ s->compress = NULL;
+#endif
+}
+
+X509 *SSL_get_certificate(const SSL *s)
+{
+ if (s->cert != NULL)
+ return s->cert->key->x509;
+ else
+ return NULL;
+}
+
+EVP_PKEY *SSL_get_privatekey(const SSL *s)
+{
+ if (s->cert != NULL)
+ return s->cert->key->privatekey;
+ else
+ return NULL;
+}
+
+X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
+{
+ if (ctx->cert != NULL)
+ return ctx->cert->key->x509;
+ else
+ return NULL;
+}
+
+EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
+{
+ if (ctx->cert != NULL)
+ return ctx->cert->key->privatekey;
+ else
+ return NULL;
+}
+
+const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
+{
+ if ((s->session != NULL) && (s->session->cipher != NULL))
+ return s->session->cipher;
+ return NULL;
+}
+
+const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
+{
+ return s->s3->tmp.new_cipher;
+}
+
+const COMP_METHOD *SSL_get_current_compression(const SSL *s)
+{
+#ifndef OPENSSL_NO_COMP
+ return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
+#else
+ return NULL;
+#endif
+}
+
+const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
+{
+#ifndef OPENSSL_NO_COMP
+ return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
+#else
+ return NULL;
+#endif
+}
+
+int ssl_init_wbio_buffer(SSL *s)
+{
+ BIO *bbio;
+
+ if (s->bbio != NULL) {
+ /* Already buffered. */
+ return 1;
+ }
+
+ bbio = BIO_new(BIO_f_buffer());
+ if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
+ BIO_free(bbio);
+ SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
+ return 0;
+ }
+ s->bbio = bbio;
+ s->wbio = BIO_push(bbio, s->wbio);
+
+ return 1;
+}
+
+int ssl_free_wbio_buffer(SSL *s)
+{
+ /* callers ensure s is never null */
+ if (s->bbio == NULL)
+ return 1;
+
+ s->wbio = BIO_pop(s->wbio);
+ BIO_free(s->bbio);
+ s->bbio = NULL;
+
+ return 1;
+}
+
+void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
+{
+ ctx->quiet_shutdown = mode;
+}
+
+int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
+{
+ return ctx->quiet_shutdown;
+}
+
+void SSL_set_quiet_shutdown(SSL *s, int mode)
+{
+ s->quiet_shutdown = mode;
+}
+
+int SSL_get_quiet_shutdown(const SSL *s)
+{
+ return s->quiet_shutdown;
+}
+
+void SSL_set_shutdown(SSL *s, int mode)
+{
+ s->shutdown = mode;
+}
+
+int SSL_get_shutdown(const SSL *s)
+{
+ return s->shutdown;
+}
+
+int SSL_version(const SSL *s)
+{
+ return s->version;
+}
+
+int SSL_client_version(const SSL *s)
+{
+ return s->client_version;
+}
+
+SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
+{
+ return ssl->ctx;
+}
+
+SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
+{
+ CERT *new_cert;
+ if (ssl->ctx == ctx)
+ return ssl->ctx;
+ if (ctx == NULL)
+ ctx = ssl->session_ctx;
+ new_cert = ssl_cert_dup(ctx->cert);
+ if (new_cert == NULL) {
+ return NULL;
+ }
+
+ if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
+ ssl_cert_free(new_cert);
+ return NULL;
+ }
+
+ ssl_cert_free(ssl->cert);
+ ssl->cert = new_cert;
+
+ /*
+ * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
+ * so setter APIs must prevent invalid lengths from entering the system.
+ */
+ if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
+ return NULL;
+
+ /*
+ * If the session ID context matches that of the parent SSL_CTX,
+ * inherit it from the new SSL_CTX as well. If however the context does
+ * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
+ * leave it unchanged.
+ */
+ if ((ssl->ctx != NULL) &&
+ (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
+ (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
+ ssl->sid_ctx_length = ctx->sid_ctx_length;
+ memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
+ }
+
+ SSL_CTX_up_ref(ctx);
+ SSL_CTX_free(ssl->ctx); /* decrement reference count */
+ ssl->ctx = ctx;
+
+ return ssl->ctx;
+}
+
+int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
+{
+ return X509_STORE_set_default_paths(ctx->cert_store);
+}
+
+int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
+{
+ X509_LOOKUP *lookup;
+
+ lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
+ if (lookup == NULL)
+ return 0;
+ X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
+
+ /* Clear any errors if the default directory does not exist */
+ ERR_clear_error();
+
+ return 1;
+}
+
+int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
+{
+ X509_LOOKUP *lookup;
+
+ lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
+ if (lookup == NULL)
+ return 0;
+
+ X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
+
+ /* Clear any errors if the default file does not exist */
+ ERR_clear_error();
+
+ return 1;
+}
+
+int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
+ const char *CApath)
+{
+ return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath);
+}
+
+void SSL_set_info_callback(SSL *ssl,
+ void (*cb) (const SSL *ssl, int type, int val))
+{
+ ssl->info_callback = cb;
+}
+
+/*
+ * One compiler (Diab DCC) doesn't like argument names in returned function
+ * pointer.
+ */
+void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
+ int /* type */ ,
+ int /* val */ ) {
+ return ssl->info_callback;
+}
+
+void SSL_set_verify_result(SSL *ssl, long arg)
+{
+ ssl->verify_result = arg;
+}
+
+long SSL_get_verify_result(const SSL *ssl)
+{
+ return ssl->verify_result;
+}
+
+size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
+{
+ if (outlen == 0)
+ return sizeof(ssl->s3->client_random);
+ if (outlen > sizeof(ssl->s3->client_random))
+ outlen = sizeof(ssl->s3->client_random);
+ memcpy(out, ssl->s3->client_random, outlen);
+ return outlen;
+}
+
+size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
+{
+ if (outlen == 0)
+ return sizeof(ssl->s3->server_random);
+ if (outlen > sizeof(ssl->s3->server_random))
+ outlen = sizeof(ssl->s3->server_random);
+ memcpy(out, ssl->s3->server_random, outlen);
+ return outlen;
+}
+
+size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
+ unsigned char *out, size_t outlen)
+{
+ if (outlen == 0)
+ return session->master_key_length;
+ if (outlen > session->master_key_length)
+ outlen = session->master_key_length;
+ memcpy(out, session->master_key, outlen);
+ return outlen;
+}
+
+int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
+ size_t len)
+{
+ if (len > sizeof(sess->master_key))
+ return 0;
+
+ memcpy(sess->master_key, in, len);
+ sess->master_key_length = len;
+ return 1;
+}
+
+
+int SSL_set_ex_data(SSL *s, int idx, void *arg)
+{
+ return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
+}
+
+void *SSL_get_ex_data(const SSL *s, int idx)
+{
+ return CRYPTO_get_ex_data(&s->ex_data, idx);
+}
+
+int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
+{
+ return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
+}
+
+void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
+{
+ return CRYPTO_get_ex_data(&s->ex_data, idx);
+}
+
+X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
+{
+ return ctx->cert_store;
+}
+
+void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
+{
+ X509_STORE_free(ctx->cert_store);
+ ctx->cert_store = store;
+}
+
+void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
+{
+ if (store != NULL)
+ X509_STORE_up_ref(store);
+ SSL_CTX_set_cert_store(ctx, store);
+}
+
+int SSL_want(const SSL *s)
+{
+ return s->rwstate;
+}
+
+/**
+ * \brief Set the callback for generating temporary DH keys.
+ * \param ctx the SSL context.
+ * \param dh the callback
+ */
+
+#ifndef OPENSSL_NO_DH
+void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
+ DH *(*dh) (SSL *ssl, int is_export,
+ int keylength))
+{
+ SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
+}
+
+void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
+ int keylength))
+{
+ SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
+}
+#endif
+
+#ifndef OPENSSL_NO_PSK
+int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
+{
+ if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
+ SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
+ return 0;
+ }
+ OPENSSL_free(ctx->cert->psk_identity_hint);
+ if (identity_hint != NULL) {
+ ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
+ if (ctx->cert->psk_identity_hint == NULL)
+ return 0;
+ } else
+ ctx->cert->psk_identity_hint = NULL;
+ return 1;
+}
+
+int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
+{
+ if (s == NULL)
+ return 0;
+
+ if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
+ SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
+ return 0;
+ }
+ OPENSSL_free(s->cert->psk_identity_hint);
+ if (identity_hint != NULL) {
+ s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
+ if (s->cert->psk_identity_hint == NULL)
+ return 0;
+ } else
+ s->cert->psk_identity_hint = NULL;
+ return 1;
+}
+
+const char *SSL_get_psk_identity_hint(const SSL *s)
+{
+ if (s == NULL || s->session == NULL)
+ return NULL;
+ return s->session->psk_identity_hint;
+}
+
+const char *SSL_get_psk_identity(const SSL *s)
+{
+ if (s == NULL || s->session == NULL)
+ return NULL;
+ return s->session->psk_identity;
+}
+
+void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
+{
+ s->psk_client_callback = cb;
+}
+
+void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
+{
+ ctx->psk_client_callback = cb;
+}
+
+void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
+{
+ s->psk_server_callback = cb;
+}
+
+void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
+{
+ ctx->psk_server_callback = cb;
+}
+#endif
+
+void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
+{
+ s->psk_find_session_cb = cb;
+}
+
+void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
+ SSL_psk_find_session_cb_func cb)
+{
+ ctx->psk_find_session_cb = cb;
+}
+
+void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
+{
+ s->psk_use_session_cb = cb;
+}
+
+void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
+ SSL_psk_use_session_cb_func cb)
+{
+ ctx->psk_use_session_cb = cb;
+}
+
+void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
+ void (*cb) (int write_p, int version,
+ int content_type, const void *buf,
+ size_t len, SSL *ssl, void *arg))
+{
+ SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
+}
+
+void SSL_set_msg_callback(SSL *ssl,
+ void (*cb) (int write_p, int version,
+ int content_type, const void *buf,
+ size_t len, SSL *ssl, void *arg))
+{
+ SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
+}
+
+void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
+ int (*cb) (SSL *ssl,
+ int
+ is_forward_secure))
+{
+ SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
+ (void (*)(void))cb);
+}
+
+void SSL_set_not_resumable_session_callback(SSL *ssl,
+ int (*cb) (SSL *ssl,
+ int is_forward_secure))
+{
+ SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
+ (void (*)(void))cb);
+}
+
+void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
+ size_t (*cb) (SSL *ssl, int type,
+ size_t len, void *arg))
+{
+ ctx->record_padding_cb = cb;
+}
+
+void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
+{
+ ctx->record_padding_arg = arg;
+}
+
+void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
+{
+ return ctx->record_padding_arg;
+}
+
+int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
+{
+ /* block size of 0 or 1 is basically no padding */
+ if (block_size == 1)
+ ctx->block_padding = 0;
+ else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
+ ctx->block_padding = block_size;
+ else
+ return 0;
+ return 1;
+}
+
+void SSL_set_record_padding_callback(SSL *ssl,
+ size_t (*cb) (SSL *ssl, int type,
+ size_t len, void *arg))
+{
+ ssl->record_padding_cb = cb;
+}
+
+void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
+{
+ ssl->record_padding_arg = arg;
+}
+
+void *SSL_get_record_padding_callback_arg(const SSL *ssl)
+{
+ return ssl->record_padding_arg;
+}
+
+int SSL_set_block_padding(SSL *ssl, size_t block_size)
+{
+ /* block size of 0 or 1 is basically no padding */
+ if (block_size == 1)
+ ssl->block_padding = 0;
+ else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
+ ssl->block_padding = block_size;
+ else
+ return 0;
+ return 1;
+}
+
+int SSL_set_num_tickets(SSL *s, size_t num_tickets)
+{
+ s->num_tickets = num_tickets;
+
+ return 1;
+}
+
+size_t SSL_get_num_tickets(const SSL *s)
+{
+ return s->num_tickets;
+}
+
+int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
+{
+ ctx->num_tickets = num_tickets;
+
+ return 1;
+}
+
+size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
+{
+ return ctx->num_tickets;
+}
+
+/*
+ * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
+ * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
+ * If EVP_MD pointer is passed, initializes ctx with this |md|.
+ * Returns the newly allocated ctx;
+ */
+
+EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
+{
+ ssl_clear_hash_ctx(hash);
+ *hash = EVP_MD_CTX_new();
+ if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
+ EVP_MD_CTX_free(*hash);
+ *hash = NULL;
+ return NULL;
+ }
+ return *hash;
+}
+
+void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
+{
+
+ EVP_MD_CTX_free(*hash);
+ *hash = NULL;
+}
+
+/* Retrieve handshake hashes */
+int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
+ size_t *hashlen)
+{
+ EVP_MD_CTX *ctx = NULL;
+ EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
+ int hashleni = EVP_MD_CTX_size(hdgst);
+ int ret = 0;
+
+ if (hashleni < 0 || (size_t)hashleni > outlen) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ ctx = EVP_MD_CTX_new();
+ if (ctx == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
+ || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ *hashlen = hashleni;
+
+ ret = 1;
+ err:
+ EVP_MD_CTX_free(ctx);
+ return ret;
+}
+
+int SSL_session_reused(const SSL *s)
+{
+ return s->hit;
+}
+
+int SSL_is_server(const SSL *s)
+{
+ return s->server;
+}
+
+#if OPENSSL_API_COMPAT < 0x10100000L
+void SSL_set_debug(SSL *s, int debug)
+{
+ /* Old function was do-nothing anyway... */
+ (void)s;
+ (void)debug;
+}
+#endif
+
+void SSL_set_security_level(SSL *s, int level)
+{
+ s->cert->sec_level = level;
+}
+
+int SSL_get_security_level(const SSL *s)
+{
+ return s->cert->sec_level;
+}
+
+void SSL_set_security_callback(SSL *s,
+ int (*cb) (const SSL *s, const SSL_CTX *ctx,
+ int op, int bits, int nid,
+ void *other, void *ex))
+{
+ s->cert->sec_cb = cb;
+}
+
+int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
+ const SSL_CTX *ctx, int op,
+ int bits, int nid, void *other,
+ void *ex) {
+ return s->cert->sec_cb;
+}
+
+void SSL_set0_security_ex_data(SSL *s, void *ex)
+{
+ s->cert->sec_ex = ex;
+}
+
+void *SSL_get0_security_ex_data(const SSL *s)
+{
+ return s->cert->sec_ex;
+}
+
+void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
+{
+ ctx->cert->sec_level = level;
+}
+
+int SSL_CTX_get_security_level(const SSL_CTX *ctx)
+{
+ return ctx->cert->sec_level;
+}
+
+void SSL_CTX_set_security_callback(SSL_CTX *ctx,
+ int (*cb) (const SSL *s, const SSL_CTX *ctx,
+ int op, int bits, int nid,
+ void *other, void *ex))
+{
+ ctx->cert->sec_cb = cb;
+}
+
+int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
+ const SSL_CTX *ctx,
+ int op, int bits,
+ int nid,
+ void *other,
+ void *ex) {
+ return ctx->cert->sec_cb;
+}
+
+void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
+{
+ ctx->cert->sec_ex = ex;
+}
+
+void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
+{
+ return ctx->cert->sec_ex;
+}
+
+/*
+ * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
+ * can return unsigned long, instead of the generic long return value from the
+ * control interface.
+ */
+unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
+{
+ return ctx->options;
+}
+
+unsigned long SSL_get_options(const SSL *s)
+{
+ return s->options;
+}
+
+unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
+{
+ return ctx->options |= op;
+}
+
+unsigned long SSL_set_options(SSL *s, unsigned long op)
+{
+ return s->options |= op;
+}
+
+unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
+{
+ return ctx->options &= ~op;
+}
+
+unsigned long SSL_clear_options(SSL *s, unsigned long op)
+{
+ return s->options &= ~op;
+}
+
+STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
+{
+ return s->verified_chain;
+}
+
+IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
+
+#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) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, 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, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
+
+ 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) {
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, 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 */
+ if (!ret)
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
+ SSL_R_CALLBACK_FAILED);
+
+ 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_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
+ void *arg)
+{
+ c->client_hello_cb = cb;
+ c->client_hello_cb_arg = arg;
+}
+
+int SSL_client_hello_isv2(SSL *s)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ return s->clienthello->isv2;
+}
+
+unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
+{
+ if (s->clienthello == NULL)
+ return 0;
+ return s->clienthello->legacy_version;
+}
+
+size_t SSL_client_hello_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_client_hello_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_client_hello_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_client_hello_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_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
+{
+ RAW_EXTENSION *ext;
+ int *present;
+ size_t num = 0, i;
+
+ if (s->clienthello == NULL || out == NULL || outlen == NULL)
+ return 0;
+ for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
+ ext = s->clienthello->pre_proc_exts + i;
+ if (ext->present)
+ num++;
+ }
+ if (num == 0) {
+ *out = NULL;
+ *outlen = 0;
+ return 1;
+ }
+ if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
+ SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT,
+ ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
+ ext = s->clienthello->pre_proc_exts + i;
+ if (ext->present) {
+ if (ext->received_order >= num)
+ goto err;
+ present[ext->received_order] = ext->type;
+ }
+ }
+ *out = present;
+ *outlen = num;
+ return 1;
+ err:
+ OPENSSL_free(present);
+ return 0;
+}
+
+int SSL_client_hello_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;
+}
+
+int SSL_free_buffers(SSL *ssl)
+{
+ RECORD_LAYER *rl = &ssl->rlayer;
+
+ if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
+ return 0;
+
+ RECORD_LAYER_release(rl);
+ return 1;
+}
+
+int SSL_alloc_buffers(SSL *ssl)
+{
+ return ssl3_setup_buffers(ssl);
+}
+
+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) {
+ SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, 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_clear_free(out, out_len);
+ 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) {
+ SSLfatal(ssl, SSL_AD_INTERNAL_ERROR,
+ 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 n;
+
+ n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
+
+ if (PACKET_remaining(cipher_suites) == 0) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,
+ SSL_R_NO_CIPHERS_SPECIFIED);
+ return 0;
+ }
+
+ if (PACKET_remaining(cipher_suites) % n != 0) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
+ SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
+ 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) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
+ ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ 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))) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
+ SSL_R_BAD_PACKET);
+ OPENSSL_free(s->s3->tmp.ciphers_raw);
+ s->s3->tmp.ciphers_raw = NULL;
+ s->s3->tmp.ciphers_rawlen = 0;
+ return 0;
+ }
+ 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)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+ return 1;
+}
+
+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)
+{
+ PACKET pkt;
+
+ if (!PACKET_buf_init(&pkt, bytes, len))
+ return 0;
+ return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
+}
+
+int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
+ STACK_OF(SSL_CIPHER) **skp,
+ STACK_OF(SSL_CIPHER) **scsvs_out,
+ int sslv2format, int fatal)
+{
+ 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) {
+ if (fatal)
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,
+ SSL_R_NO_CIPHERS_SPECIFIED);
+ else
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
+ return 0;
+ }
+
+ if (PACKET_remaining(cipher_suites) % n != 0) {
+ if (fatal)
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
+ SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
+ else
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
+ SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
+ return 0;
+ }
+
+ sk = sk_SSL_CIPHER_new_null();
+ scsvs = sk_SSL_CIPHER_new_null();
+ if (sk == NULL || scsvs == NULL) {
+ if (fatal)
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
+ ERR_R_MALLOC_FAILURE);
+ else
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
+ 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))) {
+ if (fatal)
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
+ else
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+ }
+ if (PACKET_remaining(cipher_suites) > 0) {
+ if (fatal)
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
+ SSL_R_BAD_LENGTH);
+ else
+ SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);
+ 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 *s)
+{
+ return s->max_early_data;
+}
+
+int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
+{
+ ctx->recv_max_early_data = recv_max_early_data;
+
+ return 1;
+}
+
+uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
+{
+ return ctx->recv_max_early_data;
+}
+
+int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
+{
+ s->recv_max_early_data = recv_max_early_data;
+
+ return 1;
+}
+
+uint32_t SSL_get_recv_max_early_data(const SSL *s)
+{
+ return s->recv_max_early_data;
+}
+
+__owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
+{
+ /* Return any active Max Fragment Len extension */
+ if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
+ return GET_MAX_FRAGMENT_LENGTH(ssl->session);
+
+ /* return current SSL connection setting */
+ return ssl->max_send_fragment;
+}
+
+__owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
+{
+ /* Return a value regarding an active Max Fragment Len extension */
+ if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
+ && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
+ return GET_MAX_FRAGMENT_LENGTH(ssl->session);
+
+ /* else limit |split_send_fragment| to current |max_send_fragment| */
+ if (ssl->split_send_fragment > ssl->max_send_fragment)
+ return ssl->max_send_fragment;
+
+ /* return current SSL connection setting */
+ return ssl->split_send_fragment;
+}
+
+int SSL_stateless(SSL *s)
+{
+ int ret;
+
+ /* Ensure there is no state left over from a previous invocation */
+ if (!SSL_clear(s))
+ return 0;
+
+ ERR_clear_error();
+
+ s->s3->flags |= TLS1_FLAGS_STATELESS;
+ ret = SSL_accept(s);
+ s->s3->flags &= ~TLS1_FLAGS_STATELESS;
+
+ if (ret > 0 && s->ext.cookieok)
+ return 1;
+
+ if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
+ return 0;
+
+ return -1;
+}
+
+void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
+{
+ ctx->pha_enabled = val;
+}
+
+void SSL_set_post_handshake_auth(SSL *ssl, int val)
+{
+ ssl->pha_enabled = val;
+}
+
+int SSL_verify_client_post_handshake(SSL *ssl)
+{
+ if (!SSL_IS_TLS13(ssl)) {
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION);
+ return 0;
+ }
+ if (!ssl->server) {
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER);
+ return 0;
+ }
+
+ if (!SSL_is_init_finished(ssl)) {
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT);
+ return 0;
+ }
+
+ switch (ssl->post_handshake_auth) {
+ case SSL_PHA_NONE:
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED);
+ return 0;
+ default:
+ case SSL_PHA_EXT_SENT:
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR);
+ return 0;
+ case SSL_PHA_EXT_RECEIVED:
+ break;
+ case SSL_PHA_REQUEST_PENDING:
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING);
+ return 0;
+ case SSL_PHA_REQUESTED:
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT);
+ return 0;
+ }
+
+ ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
+
+ /* checks verify_mode and algorithm_auth */
+ if (!send_certificate_request(ssl)) {
+ ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
+ SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG);
+ return 0;
+ }
+
+ ossl_statem_set_in_init(ssl, 1);
+ return 1;
+}
+
+int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
+ SSL_CTX_generate_session_ticket_fn gen_cb,
+ SSL_CTX_decrypt_session_ticket_fn dec_cb,
+ void *arg)
+{
+ ctx->generate_ticket_cb = gen_cb;
+ ctx->decrypt_ticket_cb = dec_cb;
+ ctx->ticket_cb_data = arg;
+ return 1;
+}
+
+void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
+ SSL_allow_early_data_cb_fn cb,
+ void *arg)
+{
+ ctx->allow_early_data_cb = cb;
+ ctx->allow_early_data_cb_data = arg;
+}
+
+void SSL_set_allow_early_data_cb(SSL *s,
+ SSL_allow_early_data_cb_fn cb,
+ void *arg)
+{
+ s->allow_early_data_cb = cb;
+ s->allow_early_data_cb_data = arg;
+}