X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_lib.c;h=44374b47e9a7421b2e2c280138aa42deb575db39;hp=f046770756c0def1c02888171d027144e6a85978;hb=7fecbf6f2150394bea7a3435b22cea129d05c9a9;hpb=6b8f5d0d4379c2c366c3d07e4cdbb6145abc76d1

diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index f046770756..44374b47e9 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -158,8 +158,9 @@
 #ifndef OPENSSL_NO_ENGINE
 # include <openssl/engine.h>
 #endif
+#include <openssl/async.h>
 
-const char *SSL_version_str = OPENSSL_VERSION_TEXT;
+const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
 
 SSL3_ENC_METHOD ssl3_undef_enc_method = {
     /*
@@ -186,6 +187,25 @@ SSL3_ENC_METHOD ssl3_undef_enc_method = {
              int use_context))ssl_undefined_function,
 };
 
+struct ssl_async_args {
+    SSL *s;
+    void *buf;
+    int num;
+    int type;
+    union {
+        int (*func1)(SSL *, void *, int);
+        int (*func2)(SSL *, const void *, int);
+    } f;
+};
+
+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) {
@@ -207,9 +227,7 @@ int SSL_clear(SSL *s)
         return 0;
     }
 
-    s->type = 0;
-
-    s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
+    ossl_statem_clear(s);
 
     s->version = s->method->version;
     s->client_version = s->version;
@@ -217,16 +235,14 @@ int SSL_clear(SSL *s)
 
     BUF_MEM_free(s->init_buf);
     s->init_buf = NULL;
-    ssl_clear_cipher_ctx(s);
-    ssl_clear_hash_ctx(&s->read_hash);
-    ssl_clear_hash_ctx(&s->write_hash);
+    clear_ciphers(s);
     s->first_packet = 0;
 
     /*
      * Check to see if we were changed into a different method, if so, revert
      * back if we are not doing session-id reuse.
      */
-    if (!s->in_handshake && (s->session == NULL)
+    if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
         && (s->method != s->ctx->method)) {
         s->method->ssl_free(s);
         s->method = s->ctx->method;
@@ -271,16 +287,16 @@ SSL *SSL_new(SSL_CTX *ctx)
         return (NULL);
     }
 
-    s = OPENSSL_malloc(sizeof(*s));
+    s = OPENSSL_zalloc(sizeof(*s));
     if (s == NULL)
         goto err;
-    memset(s, 0, sizeof(*s));
 
     RECORD_LAYER_init(&s->rlayer, s);
 
     s->options = ctx->options;
     s->mode = ctx->mode;
     s->max_cert_list = ctx->max_cert_list;
+    s->references = 1;
 
     /*
      * Earlier library versions used to copy the pointer to the CERT, not
@@ -307,7 +323,7 @@ SSL *SSL_new(SSL_CTX *ctx)
     s->generate_session_id = ctx->generate_session_id;
 
     s->param = X509_VERIFY_PARAM_new();
-    if (!s->param)
+    if (s->param == NULL)
         goto err;
     X509_VERIFY_PARAM_inherit(s->param, ctx->param);
     s->quiet_shutdown = ctx->quiet_shutdown;
@@ -362,12 +378,14 @@ SSL *SSL_new(SSL_CTX *ctx)
 
     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;
 
     if (!s->method->ssl_new(s))
         goto err;
 
-    s->references = 1;
     s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
 
     if (!SSL_clear(s))
@@ -380,6 +398,8 @@ SSL *SSL_new(SSL_CTX *ctx)
     s->psk_server_callback = ctx->psk_server_callback;
 #endif
 
+    s->job = NULL;
+
     return (s);
  err:
     SSL_free(s);
@@ -548,9 +568,7 @@ void SSL_free(SSL *s)
         SSL_SESSION_free(s->session);
     }
 
-    ssl_clear_cipher_ctx(s);
-    ssl_clear_hash_ctx(&s->read_hash);
-    ssl_clear_hash_ctx(&s->write_hash);
+    clear_ciphers(s);
 
     ssl_cert_free(s->cert);
     /* Free up if allocated */
@@ -821,7 +839,7 @@ X509 *SSL_get_peer_certificate(const SSL *s)
     if (r == NULL)
         return (r);
 
-    CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
+    X509_up_ref(r);
 
     return (r);
 }
@@ -830,11 +848,10 @@ STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
 {
     STACK_OF(X509) *r;
 
-    if ((s == NULL) || (s->session == NULL)
-        || (s->session->sess_cert == NULL))
+    if ((s == NULL) || (s->session == NULL))
         r = NULL;
     else
-        r = s->session->sess_cert->cert_chain;
+        r = s->session->peer_chain;
 
     /*
      * If we are a client, cert_chain includes the peer's own certificate; if
@@ -856,7 +873,7 @@ int SSL_copy_session_id(SSL *t, const SSL *f)
     }
 
     /*
-     * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
+     * what if we are setup for one protocol version but want to talk another
      */
     if (t->method != f->method) {
         t->method->ssl_free(t); /* cleanup current */
@@ -911,22 +928,40 @@ int SSL_check_private_key(const SSL *ssl)
                                    ssl->cert->key->privatekey));
 }
 
+int SSL_waiting_for_async(SSL *s)
+{
+    if(s->job)
+        return 1;
+
+    return 0;
+}
+
+int SSL_get_async_wait_fd(SSL *s)
+{
+    if (!s->job)
+        return -1;
+
+    return ASYNC_get_wait_fd(s->job);
+}
+
 int SSL_accept(SSL *s)
 {
-    if (s->handshake_func == 0)
+    if (s->handshake_func == 0) {
         /* Not properly initialized yet */
         SSL_set_accept_state(s);
+    }
 
-    return (s->method->ssl_accept(s));
+    return SSL_do_handshake(s);
 }
 
 int SSL_connect(SSL *s)
 {
-    if (s->handshake_func == 0)
+    if (s->handshake_func == 0) {
         /* Not properly initialized yet */
         SSL_set_connect_state(s);
+    }
 
-    return (s->method->ssl_connect(s));
+    return SSL_do_handshake(s);
 }
 
 long SSL_get_default_timeout(const SSL *s)
@@ -934,6 +969,46 @@ 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;
+    switch(ASYNC_start_job(&s->job, &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_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;
+    int num;
+
+    args = (struct ssl_async_args *)vargs;
+    s = args->s;
+    buf = args->buf;
+    num = args->num;
+    if (args->type == 1)
+        return args->f.func1(s, buf, num);
+    else
+        return args->f.func2(s, buf, num);
+}
+
 int SSL_read(SSL *s, void *buf, int num)
 {
     if (s->handshake_func == 0) {
@@ -945,7 +1020,20 @@ int SSL_read(SSL *s, void *buf, int num)
         s->rwstate = SSL_NOTHING;
         return (0);
     }
-    return (s->method->ssl_read(s, buf, num));
+
+    if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+        struct ssl_async_args args;
+
+        args.s = s;
+        args.buf = buf;
+        args.num = num;
+        args.type = 1;
+        args.f.func1 = s->method->ssl_read;
+
+        return ssl_start_async_job(s, &args, ssl_io_intern);
+    } else {
+        return s->method->ssl_read(s, buf, num);
+    }
 }
 
 int SSL_peek(SSL *s, void *buf, int num)
@@ -958,7 +1046,19 @@ int SSL_peek(SSL *s, void *buf, int num)
     if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
         return (0);
     }
-    return (s->method->ssl_peek(s, buf, num));
+    if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+        struct ssl_async_args args;
+
+        args.s = s;
+        args.buf = buf;
+        args.num = num;
+        args.type = 1;
+        args.f.func1 = s->method->ssl_peek;
+
+        return ssl_start_async_job(s, &args, ssl_io_intern);
+    } else {
+        return s->method->ssl_peek(s, buf, num);
+    }
 }
 
 int SSL_write(SSL *s, const void *buf, int num)
@@ -973,7 +1073,20 @@ int SSL_write(SSL *s, const void *buf, int num)
         SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
         return (-1);
     }
-    return (s->method->ssl_write(s, buf, num));
+
+    if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+        struct ssl_async_args args;
+
+        args.s = s;
+        args.buf = (void *)buf;
+        args.num = num;
+        args.type = 2;
+        args.f.func2 = s->method->ssl_write;
+
+        return ssl_start_async_job(s, &args, ssl_io_intern);
+    } else {
+        return s->method->ssl_write(s, buf, num);
+    }
 }
 
 int SSL_shutdown(SSL *s)
@@ -990,7 +1103,7 @@ int SSL_shutdown(SSL *s)
         return -1;
     }
 
-    if ((s != NULL) && !SSL_in_init(s))
+    if (!SSL_in_init(s))
         return (s->method->ssl_shutdown(s));
     else
         return (1);
@@ -1076,10 +1189,11 @@ long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
                 return 0;
             *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
             return (int)s->s3->tmp.ciphers_rawlen;
-        } else
-            return ssl_put_cipher_by_char(s, NULL, NULL);
+        } else {
+            return TLS_CIPHER_LEN;
+        }
     case SSL_CTRL_GET_EXTMS_SUPPORT:
-        if (!s->session || SSL_in_init(s) || s->in_handshake)
+        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;
@@ -1223,25 +1337,21 @@ long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
 
 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
 {
-    long l;
-
-    l = a->id - b->id;
-    if (l == 0L)
-        return (0);
-    else
-        return ((l > 0) ? 1 : -1);
+    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)
 {
-    long l;
-
-    l = (*ap)->id - (*bp)->id;
-    if (l == 0L)
-        return (0);
-    else
-        return ((l > 0) ? 1 : -1);
+    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
@@ -1360,7 +1470,6 @@ int SSL_set_cipher_list(SSL *s, const char *str)
     return 1;
 }
 
-/* works well for SSLv2, not so good for SSLv3 */
 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
 {
     char *p;
@@ -1551,7 +1660,7 @@ int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
 {
     OPENSSL_free(ctx->alpn_client_proto_list);
     ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
-    if (!ctx->alpn_client_proto_list)
+    if (ctx->alpn_client_proto_list == NULL)
         return 1;
     memcpy(ctx->alpn_client_proto_list, protos, protos_len);
     ctx->alpn_client_proto_list_len = protos_len;
@@ -1569,7 +1678,7 @@ int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
 {
     OPENSSL_free(ssl->alpn_client_proto_list);
     ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
-    if (!ssl->alpn_client_proto_list)
+    if (ssl->alpn_client_proto_list == NULL)
         return 1;
     memcpy(ssl->alpn_client_proto_list, protos, protos_len);
     ssl->alpn_client_proto_list_len = protos_len;
@@ -1681,51 +1790,21 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
         SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
         goto err;
     }
-    ret = OPENSSL_malloc(sizeof(*ret));
+    ret = OPENSSL_zalloc(sizeof(*ret));
     if (ret == NULL)
         goto err;
 
-    memset(ret, 0, sizeof(*ret));
-
     ret->method = meth;
-
-    ret->cert_store = NULL;
     ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
     ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
-    ret->session_cache_head = NULL;
-    ret->session_cache_tail = NULL;
-
-    /* We take the system default */
+    /* We take the system default. */
     ret->session_timeout = meth->get_timeout();
-
-    ret->new_session_cb = 0;
-    ret->remove_session_cb = 0;
-    ret->get_session_cb = 0;
-    ret->generate_session_id = 0;
-
-    memset(&ret->stats, 0, sizeof(ret->stats));
-
     ret->references = 1;
-    ret->quiet_shutdown = 0;
-    ret->info_callback = NULL;
-    ret->app_verify_callback = 0;
-    ret->app_verify_arg = NULL;
     ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
-    ret->read_ahead = 0;
-    ret->msg_callback = 0;
-    ret->msg_callback_arg = NULL;
     ret->verify_mode = SSL_VERIFY_NONE;
-    ret->sid_ctx_length = 0;
-    ret->default_verify_callback = NULL;
     if ((ret->cert = ssl_cert_new()) == NULL)
         goto err;
 
-    ret->default_passwd_callback = 0;
-    ret->default_passwd_callback_userdata = NULL;
-    ret->client_cert_cb = 0;
-    ret->app_gen_cookie_cb = 0;
-    ret->app_verify_cookie_cb = 0;
-
     ret->sessions = lh_SSL_SESSION_new();
     if (ret->sessions == NULL)
         goto err;
@@ -1742,7 +1821,7 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
     }
 
     ret->param = X509_VERIFY_PARAM_new();
-    if (!ret->param)
+    if (ret->param == NULL)
         goto err;
 
     if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
@@ -1759,39 +1838,23 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
 
     CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
 
-    ret->extra_certs = NULL;
     /* 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->tlsext_servername_callback = 0;
-    ret->tlsext_servername_arg = NULL;
     /* Setup RFC4507 ticket keys */
     if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
         || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
         || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
         ret->options |= SSL_OP_NO_TICKET;
 
-    ret->tlsext_status_cb = 0;
-    ret->tlsext_status_arg = NULL;
-
-#ifndef OPENSSL_NO_NEXTPROTONEG
-    ret->next_protos_advertised_cb = 0;
-    ret->next_proto_select_cb = 0;
-#endif
-#ifndef OPENSSL_NO_PSK
-    ret->psk_identity_hint = NULL;
-    ret->psk_client_callback = NULL;
-    ret->psk_server_callback = NULL;
-#endif
 #ifndef OPENSSL_NO_SRP
     if (!SSL_CTX_SRP_CTX_init(ret))
         goto err;
 #endif
 #ifndef OPENSSL_NO_ENGINE
-    ret->client_cert_engine = NULL;
 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
 #  define eng_strx(x)     #x
 #  define eng_str(x)      eng_strx(x)
@@ -1869,9 +1932,6 @@ void SSL_CTX_free(SSL_CTX *a)
 #ifndef OPENSSL_NO_SRTP
     sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
 #endif
-#ifndef OPENSSL_NO_PSK
-    OPENSSL_free(a->psk_identity_hint);
-#endif
 #ifndef OPENSSL_NO_SRP
     SSL_CTX_SRP_CTX_free(a);
 #endif
@@ -1899,6 +1959,16 @@ void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
     ctx->default_passwd_callback_userdata = u;
 }
 
+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;
+}
+
 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
                                       int (*cb) (X509_STORE_CTX *, void *),
                                       void *arg)
@@ -1934,7 +2004,7 @@ void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
 {
     CERT_PKEY *cpk;
     CERT *c = s->cert;
-    int *pvalid = s->s3->tmp.valid_flags;
+    uint32_t *pvalid = s->s3->tmp.valid_flags;
     int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
     int rsa_enc_export, dh_rsa_export, dh_dsa_export;
     int rsa_tmp_export, dh_tmp_export, kl;
@@ -1944,7 +2014,7 @@ void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
     int have_ecdh_tmp, ecdh_ok;
     X509 *x = NULL;
     EVP_PKEY *ecc_pkey = NULL;
-    int signature_nid = 0, pk_nid = 0, md_nid = 0;
+    int pk_nid = 0, md_nid = 0;
 #endif
     if (c == NULL)
         return;
@@ -2004,11 +2074,6 @@ void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
         mask_k |= SSL_kGOST;
         mask_a |= SSL_aGOST01;
     }
-    cpk = &(c->pkeys[SSL_PKEY_GOST94]);
-    if (cpk->x509 != NULL && cpk->privatekey != NULL) {
-        mask_k |= SSL_kGOST;
-        mask_a |= SSL_aGOST94;
-    }
 
     if (rsa_enc || (rsa_tmp && rsa_sign))
         mask_k |= SSL_kRSA;
@@ -2053,23 +2118,18 @@ void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
      */
 #ifndef OPENSSL_NO_EC
     if (have_ecc_cert) {
+        uint32_t ex_kusage;
         cpk = &c->pkeys[SSL_PKEY_ECC];
         x = cpk->x509;
-        /* This call populates extension flags (ex_flags) */
-        X509_check_purpose(x, -1, 0);
-        ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
-            (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
-        ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
-            (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
+        ex_kusage = X509_get_key_usage(x);
+        ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
+        ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
         if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
             ecdsa_ok = 0;
         ecc_pkey = X509_get_pubkey(x);
         ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
         EVP_PKEY_free(ecc_pkey);
-        if ((x->sig_alg) && (x->sig_alg->algorithm)) {
-            signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
-            OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
-        }
+        OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
         if (ecdh_ok) {
 
             if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
@@ -2109,6 +2169,12 @@ void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
     mask_a |= SSL_aPSK;
     emask_k |= SSL_kPSK;
     emask_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;
@@ -2117,10 +2183,6 @@ void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
     s->s3->tmp.export_mask_a = emask_a;
 }
 
-/* This handy macro borrowed from crypto/x509v3/v3_purp.c */
-#define ku_reject(x, usage) \
-        (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
-
 #ifndef OPENSSL_NO_EC
 
 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
@@ -2128,8 +2190,9 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
     unsigned long alg_k, alg_a;
     EVP_PKEY *pkey = NULL;
     int keysize = 0;
-    int signature_nid = 0, md_nid = 0, pk_nid = 0;
+    int md_nid = 0, pk_nid = 0;
     const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
+    uint32_t ex_kusage = X509_get_key_usage(x);
 
     alg_k = cs->algorithm_mkey;
     alg_a = cs->algorithm_auth;
@@ -2145,15 +2208,11 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
             return 0;
     }
 
-    /* This call populates the ex_flags field correctly */
-    X509_check_purpose(x, -1, 0);
-    if ((x->sig_alg) && (x->sig_alg->algorithm)) {
-        signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
-        OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
-    }
+    OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
+
     if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
         /* key usage, if present, must allow key agreement */
-        if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
+        if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
             SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
                    SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
             return 0;
@@ -2178,7 +2237,7 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
     }
     if (alg_a & SSL_aECDSA) {
         /* key usage, if present, must allow signing */
-        if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
+        if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
             SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
                    SSL_R_ECC_CERT_NOT_FOR_SIGNING);
             return 0;
@@ -2424,6 +2483,9 @@ int SSL_get_error(const SSL *s, int i)
     if ((i < 0) && SSL_want_x509_lookup(s)) {
         return (SSL_ERROR_WANT_X509_LOOKUP);
     }
+    if ((i < 0) && SSL_want_async(s)) {
+        return SSL_ERROR_WANT_ASYNC;
+    }
 
     if (i == 0) {
         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
@@ -2433,49 +2495,58 @@ int SSL_get_error(const SSL *s, int i)
     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);
+        return -1;
     }
 
     s->method->ssl_renegotiate_check(s);
 
     if (SSL_in_init(s) || SSL_in_before(s)) {
-        ret = s->handshake_func(s);
+        if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
+            struct ssl_async_args args;
+
+            args.s = s;
+
+            ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
+        } else {
+            ret = s->handshake_func(s);
+        }
     }
-    return (ret);
+    return ret;
 }
 
-/*
- * For the next 2 functions, SSL_clear() sets shutdown and so one of these
- * calls will reset it
- */
 void SSL_set_accept_state(SSL *s)
 {
     s->server = 1;
     s->shutdown = 0;
-    s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
+    ossl_statem_clear(s);
     s->handshake_func = s->method->ssl_accept;
-    /* clear the current cipher */
-    ssl_clear_cipher_ctx(s);
-    ssl_clear_hash_ctx(&s->read_hash);
-    ssl_clear_hash_ctx(&s->write_hash);
+    clear_ciphers(s);
 }
 
 void SSL_set_connect_state(SSL *s)
 {
     s->server = 0;
     s->shutdown = 0;
-    s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
+    ossl_statem_clear(s);
     s->handshake_func = s->method->ssl_connect;
-    /* clear the current cipher */
-    ssl_clear_cipher_ctx(s);
-    ssl_clear_hash_ctx(&s->read_hash);
-    ssl_clear_hash_ctx(&s->write_hash);
+    clear_ciphers(s);
 }
 
 int ssl_undefined_function(SSL *s)
@@ -2493,8 +2564,6 @@ int ssl_undefined_void_function(void)
 
 int ssl_undefined_const_function(const SSL *s)
 {
-    SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
-           ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
     return (0);
 }
 
@@ -2535,7 +2604,6 @@ SSL *SSL_dup(SSL *s)
         return (NULL);
 
     ret->version = s->version;
-    ret->type = s->type;
     ret->method = s->method;
 
     if (s->session != NULL) {
@@ -2596,21 +2664,23 @@ SSL *SSL_dup(SSL *s)
             ret->wbio = ret->rbio;
     }
     ret->rwstate = s->rwstate;
-    ret->in_handshake = s->in_handshake;
     ret->handshake_func = s->handshake_func;
     ret->server = s->server;
     ret->renegotiate = s->renegotiate;
     ret->new_session = s->new_session;
     ret->quiet_shutdown = s->quiet_shutdown;
     ret->shutdown = s->shutdown;
-    ret->state = s->state;      /* SSL_dup does not really work at any state,
-                                 * though */
+    ret->statem = s->statem;      /* SSL_dup does not really work at any state,
+                                   * though */
     RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
     ret->init_num = 0;          /* would have to copy ret->init_buf,
                                  * ret->init_msg, ret->init_num,
                                  * ret->init_off */
     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 */
@@ -2848,18 +2918,47 @@ SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
     return (ssl->ctx);
 }
 
-#ifndef OPENSSL_NO_STDIO
 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));
 }
-#endif
 
 void SSL_set_info_callback(SSL *ssl,
                            void (*cb) (const SSL *ssl, int type, int val))
@@ -2877,16 +2976,6 @@ void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
     return ssl->info_callback;
 }
 
-int SSL_state(const SSL *ssl)
-{
-    return (ssl->state);
-}
-
-void SSL_set_state(SSL *ssl, int state)
-{
-    ssl->state = state;
-}
-
 void SSL_set_verify_result(SSL *ssl, long arg)
 {
     ssl->verify_result = arg;
@@ -2897,39 +2986,39 @@ long SSL_get_verify_result(const SSL *ssl)
     return (ssl->verify_result);
 }
 
-int SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
+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);
+    return outlen;
 }
 
-int SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t 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);
+    return outlen;
 }
 
-int SSL_SESSION_get_master_key(const SSL_SESSION *session,
+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 (session->master_key_length < 0) {
         /* Should never happen */
         return 0;
     }
+    if (outlen == 0)
+        return session->master_key_length;
     if (outlen > (size_t)session->master_key_length)
         outlen = session->master_key_length;
     memcpy(out, session->master_key, outlen);
-    return (outlen);
+    return outlen;
 }
 
 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
@@ -3072,13 +3161,13 @@ int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
                SSL_R_DATA_LENGTH_TOO_LONG);
         return 0;
     }
-    OPENSSL_free(ctx->psk_identity_hint);
+    OPENSSL_free(ctx->cert->psk_identity_hint);
     if (identity_hint != NULL) {
-        ctx->psk_identity_hint = BUF_strdup(identity_hint);
-        if (ctx->psk_identity_hint == NULL)
+        ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
+        if (ctx->cert->psk_identity_hint == NULL)
             return 0;
     } else
-        ctx->psk_identity_hint = NULL;
+        ctx->cert->psk_identity_hint = NULL;
     return 1;
 }
 
@@ -3087,20 +3176,17 @@ int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
     if (s == NULL)
         return 0;
 
-    if (s->session == NULL)
-        return 1;               /* session not created yet, ignored */
-
     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->session->psk_identity_hint);
+    OPENSSL_free(s->cert->psk_identity_hint);
     if (identity_hint != NULL) {
-        s->session->psk_identity_hint = BUF_strdup(identity_hint);
-        if (s->session->psk_identity_hint == NULL)
+        s->cert->psk_identity_hint = BUF_strdup(identity_hint);
+        if (s->cert->psk_identity_hint == NULL)
             return 0;
     } else
-        s->session->psk_identity_hint = NULL;
+        s->cert->psk_identity_hint = NULL;
     return 1;
 }
 
@@ -3209,8 +3295,11 @@ EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
 {
     ssl_clear_hash_ctx(hash);
     *hash = EVP_MD_CTX_create();
-    if (md)
-        EVP_DigestInit_ex(*hash, md, NULL);
+    if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
+        EVP_MD_CTX_destroy(*hash);
+        *hash = NULL;
+        return NULL;
+    }
     return *hash;
 }