Make i2r_sctlist static.
[openssl.git] / ssl / ssl_lib.c
index 25efa29a57a34e0d88ce38c296138c24d5755bf9..d47f26865bf58f5f66e3f94c2c16aad7a200c535 100644 (file)
@@ -58,7 +58,7 @@
  * [including the GNU Public Licence.]
  */
 /* ====================================================================
- * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * ECC cipher suite support in OpenSSL originally developed by 
  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
  */
+/* ====================================================================
+ * Copyright 2005 Nokia. All rights reserved.
+ *
+ * The portions of the attached software ("Contribution") is developed by
+ * Nokia Corporation and is licensed pursuant to the OpenSSL open source
+ * license.
+ *
+ * The Contribution, originally written by Mika Kousa and Pasi Eronen of
+ * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
+ * support (see RFC 4279) to OpenSSL.
+ *
+ * No patent licenses or other rights except those expressly stated in
+ * the OpenSSL open source license shall be deemed granted or received
+ * expressly, by implication, estoppel, or otherwise.
+ *
+ * No assurances are provided by Nokia that the Contribution does not
+ * infringe the patent or other intellectual property rights of any third
+ * party or that the license provides you with all the necessary rights
+ * to make use of the Contribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
+ * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
+ * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
+ * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
+ * OTHERWISE.
+ */
 
 #ifdef REF_CHECK
 #  include <assert.h>
 #include <openssl/objects.h>
 #include <openssl/lhash.h>
 #include <openssl/x509v3.h>
+#include <openssl/rand.h>
+#include <openssl/ocsp.h>
+#ifndef OPENSSL_NO_DH
 #include <openssl/dh.h>
+#endif
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
 
 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
 
@@ -136,7 +169,17 @@ SSL3_ENC_METHOD ssl3_undef_enc_method={
        ssl_undefined_function,
        (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
        (int (*)(SSL*, int))ssl_undefined_function,
-       (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
+       (int (*)(SSL *,  const char*, int, unsigned char *))ssl_undefined_function,
+       0,      /* finish_mac_length */
+       (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
+       NULL,   /* client_finished_label */
+       0,      /* client_finished_label_len */
+       NULL,   /* server_finished_label */
+       0,      /* server_finished_label_len */
+       (int (*)(int))ssl_undefined_function,
+       (int (*)(SSL *, unsigned char *, size_t, const char *,
+                size_t, const unsigned char *, size_t,
+                int use_context)) ssl_undefined_function,
        };
 
 int SSL_clear(SSL *s)
@@ -162,9 +205,9 @@ int SSL_clear(SSL *s)
        * needed because SSL_clear is not called when doing renegotiation) */
        /* This is set if we are doing dynamic renegotiation so keep
         * the old cipher.  It is sort of a SSL_clear_lite :-) */
-       if (s->new_session) return(1);
+       if (s->renegotiate) return(1);
 #else
-       if (s->new_session)
+       if (s->renegotiate)
                {
                SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
                return 0;
@@ -190,6 +233,8 @@ int SSL_clear(SSL *s)
                }
 
        ssl_clear_cipher_ctx(s);
+       ssl_clear_hash_ctx(&s->read_hash);
+       ssl_clear_hash_ctx(&s->write_hash);
 
        s->first_packet=0;
 
@@ -210,14 +255,15 @@ int SSL_clear(SSL *s)
        }
 
 /** Used to change an SSL_CTXs default SSL method type */
-int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
+int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
        {
        STACK_OF(SSL_CIPHER) *sk;
 
        ctx->method=meth;
 
        sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
-               &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
+               &(ctx->cipher_list_by_id),
+               meth->version == SSL2_VERSION ? "SSLv2" : 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);
@@ -276,6 +322,7 @@ SSL *SSL_new(SSL_CTX *ctx)
        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;
 #if 0
        s->verify_depth=ctx->verify_depth;
 #endif
@@ -294,9 +341,59 @@ SSL *SSL_new(SSL_CTX *ctx)
        s->trust = ctx->trust;
 #endif
        s->quiet_shutdown=ctx->quiet_shutdown;
+       s->max_send_fragment = ctx->max_send_fragment;
 
        CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
        s->ctx=ctx;
+#ifndef OPENSSL_NO_TLSEXT
+       s->tlsext_debug_cb = 0;
+       s->tlsext_debug_arg = NULL;
+       s->tlsext_ticket_expected = 0;
+       s->tlsext_status_type = -1;
+       s->tlsext_status_expected = 0;
+       s->tlsext_ocsp_ids = NULL;
+       s->tlsext_ocsp_exts = NULL;
+       s->tlsext_ocsp_resp = NULL;
+       s->tlsext_ocsp_resplen = -1;
+       CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
+       s->initial_ctx=ctx;
+#ifndef OPENSSL_NO_EC
+       if (ctx->tlsext_ecpointformatlist)
+               {
+               s->tlsext_ecpointformatlist =
+                       BUF_memdup(ctx->tlsext_ecpointformatlist,
+                                       ctx->tlsext_ecpointformatlist_length);
+               if (!s->tlsext_ecpointformatlist)
+                       goto err;
+               s->tlsext_ecpointformatlist_length =
+                                       ctx->tlsext_ecpointformatlist_length;
+               }
+       if (ctx->tlsext_ellipticcurvelist)
+               {
+               s->tlsext_ellipticcurvelist =
+                       BUF_memdup(ctx->tlsext_ellipticcurvelist,
+                                       ctx->tlsext_ellipticcurvelist_length);
+               if (!s->tlsext_ellipticcurvelist)
+                       goto err;
+               s->tlsext_ellipticcurvelist_length = 
+                                       ctx->tlsext_ellipticcurvelist_length;
+               }
+#endif
+# ifndef OPENSSL_NO_NEXTPROTONEG
+       s->next_proto_negotiated = NULL;
+# endif
+
+       if (s->ctx->alpn_client_proto_list)
+               {
+               s->alpn_client_proto_list =
+                       OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
+               if (s->alpn_client_proto_list == NULL)
+                       goto err;
+               memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
+                      s->ctx->alpn_client_proto_list_len);
+               s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
+               }
+#endif
 
        s->verify_result=X509_V_OK;
 
@@ -312,6 +409,11 @@ SSL *SSL_new(SSL_CTX *ctx)
 
        CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
 
+#ifndef OPENSSL_NO_PSK
+       s->psk_client_callback=ctx->psk_client_callback;
+       s->psk_server_callback=ctx->psk_server_callback;
+#endif
+
        return(s);
 err:
        if (s != NULL)
@@ -399,7 +501,7 @@ int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
                }
 
        CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
-       p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
+       p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
        CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
        return (p != NULL);
        }
@@ -424,6 +526,31 @@ int SSL_set_trust(SSL *s, int trust)
        return X509_VERIFY_PARAM_set_trust(s->param, trust);
        }
 
+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;
@@ -478,22 +605,52 @@ void SSL_free(SSL *s)
                }
 
        ssl_clear_cipher_ctx(s);
+       ssl_clear_hash_ctx(&s->read_hash);
+       ssl_clear_hash_ctx(&s->write_hash);
 
        if (s->cert != NULL) ssl_cert_free(s->cert);
        /* Free up if allocated */
 
-       if (s->ctx) SSL_CTX_free(s->ctx);
+#ifndef OPENSSL_NO_TLSEXT
+       if (s->tlsext_hostname)
+               OPENSSL_free(s->tlsext_hostname);
+       if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
+#ifndef OPENSSL_NO_EC
+       if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
+       if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
+#endif /* OPENSSL_NO_EC */
+       if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
+       if (s->tlsext_ocsp_exts)
+               sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
+                                               X509_EXTENSION_free);
+       if (s->tlsext_ocsp_ids)
+               sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
+       if (s->tlsext_ocsp_resp)
+               OPENSSL_free(s->tlsext_ocsp_resp);
+       if (s->alpn_client_proto_list)
+               OPENSSL_free(s->alpn_client_proto_list);
+#endif
 
        if (s->client_CA != NULL)
                sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
 
        if (s->method != NULL) s->method->ssl_free(s);
 
+       if (s->ctx) SSL_CTX_free(s->ctx);
+
 #ifndef        OPENSSL_NO_KRB5
        if (s->kssl_ctx != NULL)
                kssl_ctx_free(s->kssl_ctx);
 #endif /* OPENSSL_NO_KRB5 */
 
+#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
+       if (s->next_proto_negotiated)
+               OPENSSL_free(s->next_proto_negotiated);
+#endif
+
+        if (s->srtp_profiles)
+            sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
+
        OPENSSL_free(s);
        }
 
@@ -806,7 +963,7 @@ int SSL_check_private_key(const SSL *ssl)
                }
        if (ssl->cert == NULL)
                {
-                SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
+               SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
                return 0;
                }
        if (ssl->cert->key->x509 == NULL)
@@ -916,10 +1073,21 @@ int SSL_shutdown(SSL *s)
 
 int SSL_renegotiate(SSL *s)
        {
-       if (s->new_session == 0)
-               {
-               s->new_session=1;
-               }
+       if (s->renegotiate == 0)
+               s->renegotiate=1;
+
+       s->new_session=1;
+
+       return(s->method->ssl_renegotiate(s));
+       }
+
+int SSL_renegotiate_abbreviated(SSL *s)
+       {
+       if (s->renegotiate == 0)
+               s->renegotiate=1;
+
+       s->new_session=0;
+
        return(s->method->ssl_renegotiate(s));
        }
 
@@ -927,7 +1095,7 @@ int SSL_renegotiate_pending(SSL *s)
        {
        /* becomes true when negotiation is requested;
         * false again once a handshake has finished */
-       return (s->new_session != 0);
+       return (s->renegotiate != 0);
        }
 
 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
@@ -949,8 +1117,12 @@ long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
 
        case SSL_CTRL_OPTIONS:
                return(s->options|=larg);
+       case SSL_CTRL_CLEAR_OPTIONS:
+               return(s->options&=~larg);
        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(s->max_cert_list);
        case SSL_CTRL_SET_MAX_CERT_LIST:
@@ -958,12 +1130,41 @@ long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
                s->max_cert_list=larg;
                return(l);
        case SSL_CTRL_SET_MTU:
-               if (SSL_version(s) == DTLS1_VERSION)
+#ifndef OPENSSL_NO_DTLS1
+               if (larg < (long)dtls1_min_mtu())
+                       return 0;
+#endif
+
+               if (SSL_IS_DTLS(s))
                        {
                        s->d1->mtu = larg;
                        return larg;
                        }
                return 0;
+       case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
+               if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
+                       return 0;
+               s->max_send_fragment = larg;
+               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->cert->ciphers_raw == NULL)
+                               return 0;
+                       *(unsigned char **)parg = s->cert->ciphers_raw;
+                       return (int)s->cert->ciphers_rawlen;
+                       }
+               else
+                       return ssl_put_cipher_by_char(s,NULL,NULL);
        default:
                return(s->method->ssl_ctrl(s,cmd,larg,parg));
                }
@@ -982,7 +1183,7 @@ long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
                }
        }
 
-struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
+LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
        {
        return ctx->sessions;
        }
@@ -990,6 +1191,22 @@ struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
 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_CURVES_LIST:
+                       return tls1_set_curves_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)
                {
@@ -1025,7 +1242,7 @@ long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
                return(ctx->session_cache_mode);
 
        case SSL_CTRL_SESS_NUMBER:
-               return(ctx->sessions->num_items);
+               return(lh_SSL_SESSION_num_items(ctx->sessions));
        case SSL_CTRL_SESS_CONNECT:
                return(ctx->stats.sess_connect);
        case SSL_CTRL_SESS_CONNECT_GOOD:
@@ -1050,8 +1267,21 @@ long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
                return(ctx->stats.sess_cache_full);
        case SSL_CTRL_OPTIONS:
                return(ctx->options|=larg);
+       case SSL_CTRL_CLEAR_OPTIONS:
+               return(ctx->options&=~larg);
        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;
+               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);
        default:
                return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
                }
@@ -1152,12 +1382,12 @@ 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->cipher_list,
-               &ctx->cipher_list_by_id,str);
+               &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 
+        * 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)
@@ -1176,7 +1406,7 @@ int SSL_set_cipher_list(SSL *s,const char *str)
        STACK_OF(SSL_CIPHER) *sk;
        
        sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
-               &s->cipher_list_by_id,str);
+               &s->cipher_list_by_id,str, s->cert);
        /* see comment in SSL_CTX_set_cipher_list */
        if (sk == NULL)
                return 0;
@@ -1192,7 +1422,6 @@ int SSL_set_cipher_list(SSL *s,const char *str)
 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
        {
        char *p;
-       const char *cp;
        STACK_OF(SSL_CIPHER) *sk;
        SSL_CIPHER *c;
        int i;
@@ -1205,34 +1434,36 @@ char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
        sk=s->session->ciphers;
        for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
                {
-               /* Decrement for either the ':' or a '\0' */
-               len--;
+               int n;
+
                c=sk_SSL_CIPHER_value(sk,i);
-               for (cp=c->name; *cp; )
+               n=strlen(c->name);
+               if (n+1 > len)
                        {
-                       if (len-- == 0)
-                               {
-                               *p='\0';
-                               return(buf);
-                               }
-                       else
-                               *(p++)= *(cp++);
+                       if (p != buf)
+                               --p;
+                       *p='\0';
+                       return buf;
                        }
+               strcpy(p,c->name);
+               p+=n;
                *(p++)=':';
+               len-=n+1;
                }
        p[-1]='\0';
        return(buf);
        }
 
 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
-                             int (*put_cb)(const SSL_CIPHER *, unsigned char *))
+                            int (*put_cb)(const SSL_CIPHER *, unsigned char *))
        {
        int i,j=0;
        SSL_CIPHER *c;
+       CERT *ct = s->cert;
        unsigned char *q;
-#ifndef OPENSSL_NO_KRB5
-        int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
-#endif /* OPENSSL_NO_KRB5 */
+       int no_scsv = s->renegotiate;
+       /* Set disabled masks for this session */
+       ssl_set_client_disabled(s);
 
        if (sk == NULL) return(0);
        q=p;
@@ -1240,23 +1471,50 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
        for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
                {
                c=sk_SSL_CIPHER_value(sk,i);
-#ifndef OPENSSL_NO_KRB5
-                if ((c->algorithms & SSL_KRB5) && nokrb5)
-                    continue;
-#endif /* OPENSSL_NO_KRB5 */                    
-
+               /* Skip disabled ciphers */
+               if (c->algorithm_ssl & ct->mask_ssl ||
+                       c->algorithm_mkey & ct->mask_k ||
+                       c->algorithm_auth & ct->mask_a)
+                       continue;
+#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
+               if (c->id == SSL3_CK_SCSV)
+                       {
+                       if (no_scsv)
+                               continue;
+                       else
+                               no_scsv = 1;
+                       }
+#endif
                j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
                p+=j;
                }
+       /* If p == q, no ciphers and caller indicates an error. Otherwise
+        * add SCSV if not renegotiating.
+        */
+       if (p != q && !no_scsv)
+               {
+               static SSL_CIPHER scsv =
+                       {
+                       0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
+                       };
+               j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
+               p+=j;
+#ifdef OPENSSL_RI_DEBUG
+               fprintf(stderr, "SCSV sent by client\n");
+#endif
+               }
+
        return(p-q);
        }
 
 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
                                               STACK_OF(SSL_CIPHER) **skp)
        {
-       SSL_CIPHER *c;
+       const SSL_CIPHER *c;
        STACK_OF(SSL_CIPHER) *sk;
        int i,n;
+       if (s->s3)
+               s->s3->send_connection_binding = 0;
 
        n=ssl_put_cipher_by_char(s,NULL,NULL);
        if ((num%n) != 0)
@@ -1272,8 +1530,38 @@ STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
                sk_SSL_CIPHER_zero(sk);
                }
 
+       if (s->cert->ciphers_raw)
+               OPENSSL_free(s->cert->ciphers_raw);
+       s->cert->ciphers_raw = BUF_memdup(p, num);
+       if (s->cert->ciphers_raw == NULL)
+               {
+               SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
+               goto err;
+               }
+       s->cert->ciphers_rawlen = (size_t)num;
+
        for (i=0; i<num; i+=n)
                {
+               /* Check for SCSV */
+               if (s->s3 && (n != 3 || !p[0]) &&
+                       (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
+                       (p[n-1] == (SSL3_CK_SCSV & 0xff)))
+                       {
+                       /* SCSV fatal if renegotiating */
+                       if (s->renegotiate)
+                               {
+                               SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
+                               ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); 
+                               goto err;
+                               }
+                       s->s3->send_connection_binding = 1;
+                       p += n;
+#ifdef OPENSSL_RI_DEBUG
+                       fprintf(stderr, "SCSV received by server\n");
+#endif
+                       continue;
+                       }
+
                c=ssl_get_cipher_by_char(s,p);
                p+=n;
                if (c != NULL)
@@ -1295,7 +1583,348 @@ err:
        return(NULL);
        }
 
-unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
+
+#ifndef OPENSSL_NO_TLSEXT
+/** return a servername extension value if provided in Client Hello, or NULL.
+ * So far, only host_name types are defined (RFC 3546).
+ */
+
+const char *SSL_get_servername(const SSL *s, const int type)
+       {
+       if (type != TLSEXT_NAMETYPE_host_name)
+               return NULL;
+
+       return s->session && !s->tlsext_hostname ?
+               s->session->tlsext_hostname :
+               s->tlsext_hostname;
+       }
+
+int SSL_get_servername_type(const SSL *s)
+       {
+       if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
+               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 protcol 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->next_proto_negotiated;
+       if (!*data) {
+               *len = 0;
+       } else {
+               *len = s->next_proto_negotiated_len;
+       }
+}
+
+/* SSL_CTX_set_next_protos_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_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg), void *arg)
+       {
+       ctx->next_protos_advertised_cb = cb;
+       ctx->next_protos_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_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg), void *arg)
+       {
+       ctx->next_proto_select_cb = cb;
+       ctx->next_proto_select_cb_arg = arg;
+       }
+# endif
+
+int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
+                              custom_cli_ext_first_cb_fn fn1, 
+                              custom_cli_ext_second_cb_fn fn2, void* arg)
+       {
+       size_t i;
+       custom_cli_ext_record* record;
+
+       /* Check for duplicates */
+       for (i=0; i < ctx->custom_cli_ext_records_count; i++)
+               if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
+                       return 0;
+
+       ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
+                                                     (ctx->custom_cli_ext_records_count + 1) * 
+                                                     sizeof(custom_cli_ext_record));
+       if (!ctx->custom_cli_ext_records) {
+               ctx->custom_cli_ext_records_count = 0;
+               return 0;
+       }
+       ctx->custom_cli_ext_records_count++;
+       record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
+       record->ext_type = ext_type;
+       record->fn1 = fn1;
+       record->fn2 = fn2;
+       record->arg = arg;
+       return 1;
+       }
+
+int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
+                              custom_srv_ext_first_cb_fn fn1, 
+                              custom_srv_ext_second_cb_fn fn2, void* arg)
+       {
+       size_t i;
+       custom_srv_ext_record* record;
+
+       /* Check for duplicates */      
+       for (i=0; i < ctx->custom_srv_ext_records_count; i++)
+               if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
+                       return 0;
+
+       ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
+                                                     (ctx->custom_srv_ext_records_count + 1) * 
+                                                     sizeof(custom_srv_ext_record));
+       if (!ctx->custom_srv_ext_records) {
+               ctx->custom_srv_ext_records_count = 0;
+               return 0;
+       }
+       ctx->custom_srv_ext_records_count++;
+       record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
+       record->ext_type = ext_type;
+       record->fn1 = fn1;
+       record->fn2 = fn2;
+       record->arg = arg;
+       return 1;
+       }
+
+/* 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 protos_len)
+       {
+       if (ctx->alpn_client_proto_list)
+               OPENSSL_free(ctx->alpn_client_proto_list);
+
+       ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
+       if (!ctx->alpn_client_proto_list)
+               return 1;
+       memcpy(ctx->alpn_client_proto_list, protos, protos_len);
+       ctx->alpn_client_proto_list_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 protos_len)
+       {
+       if (ssl->alpn_client_proto_list)
+               OPENSSL_free(ssl->alpn_client_proto_list);
+
+       ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
+       if (!ssl->alpn_client_proto_list)
+               return 1;
+       memcpy(ssl->alpn_client_proto_list, protos, protos_len);
+       ssl->alpn_client_proto_list_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,
+                               int (*cb) (SSL *ssl,
+                                          const unsigned char **out,
+                                          unsigned char *outlen,
+                                          const unsigned char *in,
+                                          unsigned int inlen,
+                                          void *arg),
+                               void *arg)
+       {
+       ctx->alpn_select_cb = cb;
+       ctx->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 *len)
+       {
+       *data = NULL;
+       if (ssl->s3)
+               *data = ssl->s3->alpn_selected;
+       if (*data == NULL)
+               *len = 0;
+       else
+               *len = ssl->s3->alpn_selected_len;
+       }
+
+int SSL_CTX_set_cli_supp_data(SSL_CTX *ctx,
+                             unsigned short supp_data_type,
+                             cli_supp_data_first_cb_fn fn1,
+                             cli_supp_data_second_cb_fn fn2, void* arg)
+       {
+       size_t i;
+       cli_supp_data_record* record;
+
+       /* Check for duplicates */
+       for (i=0; i < ctx->cli_supp_data_records_count; i++)
+               if (supp_data_type == ctx->cli_supp_data_records[i].supp_data_type)
+                       return 0;
+
+       ctx->cli_supp_data_records = OPENSSL_realloc(ctx->cli_supp_data_records,
+         (ctx->cli_supp_data_records_count+1) * sizeof(cli_supp_data_record));
+       if (!ctx->cli_supp_data_records)
+               {
+               ctx->cli_supp_data_records_count = 0;
+               return 0;
+               }
+       ctx->cli_supp_data_records_count++;
+       record = &ctx->cli_supp_data_records[ctx->cli_supp_data_records_count - 1];
+       record->supp_data_type = supp_data_type;
+       record->fn1 = fn1;
+       record->fn2 = fn2;
+       record->arg = arg;
+       return 1;
+       }
+
+int SSL_CTX_set_srv_supp_data(SSL_CTX *ctx,
+                             unsigned short supp_data_type,
+                             srv_supp_data_first_cb_fn fn1,
+                             srv_supp_data_second_cb_fn fn2, void* arg)
+       {
+       size_t i;
+       srv_supp_data_record* record;
+
+       /* Check for duplicates */
+       for (i=0; i < ctx->srv_supp_data_records_count; i++)
+               if (supp_data_type == ctx->srv_supp_data_records[i].supp_data_type)
+                       return 0;
+
+       ctx->srv_supp_data_records = OPENSSL_realloc(ctx->srv_supp_data_records,
+         (ctx->srv_supp_data_records_count+1) * sizeof(srv_supp_data_record));
+       if (!ctx->srv_supp_data_records)
+               {
+               ctx->srv_supp_data_records_count = 0;
+               return 0;
+               }
+       ctx->srv_supp_data_records_count++;
+       record = &ctx->srv_supp_data_records[ctx->srv_supp_data_records_count - 1];
+       record->supp_data_type = supp_data_type;
+       record->fn1 = fn1;
+       record->fn2 = fn2;
+       record->arg = arg;
+
+       return 1;
+       }
+
+#endif /* !OPENSSL_NO_TLSEXT */
+
+int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
+       const char *label, size_t llen, const unsigned char *p, size_t plen,
+       int use_context)
+       {
+       if (s->version < TLS1_VERSION)
+               return -1;
+
+       return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
+                                                          llen, p, plen,
+                                                          use_context);
+       }
+
+static unsigned long ssl_session_hash(const SSL_SESSION *a)
        {
        unsigned long l;
 
@@ -1312,7 +1941,7 @@ unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
  * 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. */
-int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
+static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
        {
        if (a->ssl_version != b->ssl_version)
                return(1);
@@ -1325,19 +1954,27 @@ int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
  * 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. */
-static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
-static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
+static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
+static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
 
-SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
+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);
                }
 
+#ifdef OPENSSL_FIPS
+       if (FIPS_mode() && (meth->version < TLS1_VERSION))      
+               {
+               SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
+               return NULL;
+               }
+#endif
+
        if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
                {
                SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
@@ -1400,15 +2037,14 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
        ret->app_gen_cookie_cb=0;
        ret->app_verify_cookie_cb=0;
 
-       ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
-                       LHASH_COMP_FN(SSL_SESSION_cmp));
+       ret->sessions=lh_SSL_SESSION_new();
        if (ret->sessions == NULL) goto err;
        ret->cert_store=X509_STORE_new();
        if (ret->cert_store == NULL) goto err;
 
        ssl_create_cipher_list(ret->method,
                &ret->cipher_list,&ret->cipher_list_by_id,
-               SSL_DEFAULT_CIPHER_LIST);
+               meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
        if (ret->cipher_list == NULL
            || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
                {
@@ -1442,7 +2078,87 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
        CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
 
        ret->extra_certs=NULL;
-       ret->comp_methods=SSL_COMP_get_compression_methods();
+       /* 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;
+
+#ifndef OPENSSL_NO_TLSEXT
+       ret->tlsext_servername_callback = 0;
+       ret->tlsext_servername_arg = NULL;
+       /* Setup RFC4507 ticket keys */
+       if ((RAND_pseudo_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
+#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
+       SSL_CTX_SRP_CTX_init(ret);
+#endif
+       ret->custom_cli_ext_records = NULL;
+       ret->custom_cli_ext_records_count = 0;
+       ret->custom_srv_ext_records = NULL;
+       ret->custom_srv_ext_records_count = 0;
+       ret->cli_supp_data_records = NULL;
+       ret->cli_supp_data_records_count = 0;
+       ret->srv_supp_data_records = NULL;
+       ret->srv_supp_data_records_count = 0;
+#ifndef OPENSSL_NO_BUF_FREELISTS
+       ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
+       ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
+       if (!ret->rbuf_freelist)
+               goto err;
+       ret->rbuf_freelist->chunklen = 0;
+       ret->rbuf_freelist->len = 0;
+       ret->rbuf_freelist->head = NULL;
+       ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
+       if (!ret->wbuf_freelist)
+               {
+               OPENSSL_free(ret->rbuf_freelist);
+               goto err;
+               }
+       ret->wbuf_freelist->chunklen = 0;
+       ret->wbuf_freelist->len = 0;
+       ret->wbuf_freelist->head = NULL;
+#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)
+       /* 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;
 
        return(ret);
 err:
@@ -1457,6 +2173,20 @@ static void SSL_COMP_free(SSL_COMP *comp)
     { OPENSSL_free(comp); }
 #endif
 
+#ifndef OPENSSL_NO_BUF_FREELISTS
+static void
+ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
+       {
+       SSL3_BUF_FREELIST_ENTRY *ent, *next;
+       for (ent = list->head; ent; ent = next)
+               {
+               next = ent->next;
+               OPENSSL_free(ent);
+               }
+       OPENSSL_free(list);
+       }
+#endif
+
 void SSL_CTX_free(SSL_CTX *a)
        {
        int i;
@@ -1494,7 +2224,7 @@ void SSL_CTX_free(SSL_CTX *a)
        CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
 
        if (a->sessions != NULL)
-               lh_free(a->sessions);
+               lh_SSL_SESSION_free(a->sessions);
 
        if (a->cert_store != NULL)
                X509_STORE_free(a->cert_store);
@@ -1514,6 +2244,45 @@ void SSL_CTX_free(SSL_CTX *a)
 #else
        a->comp_methods = NULL;
 #endif
+
+        if (a->srtp_profiles)
+                sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
+
+#ifndef OPENSSL_NO_PSK
+       if (a->psk_identity_hint)
+               OPENSSL_free(a->psk_identity_hint);
+#endif
+#ifndef OPENSSL_NO_SRP
+       SSL_CTX_SRP_CTX_free(a);
+#endif
+#ifndef OPENSSL_NO_TLSEXT
+       OPENSSL_free(a->custom_cli_ext_records);
+       OPENSSL_free(a->custom_srv_ext_records);
+       OPENSSL_free(a->cli_supp_data_records);
+       OPENSSL_free(a->srv_supp_data_records);
+#endif
+#ifndef OPENSSL_NO_ENGINE
+       if (a->client_cert_engine)
+               ENGINE_finish(a->client_cert_engine);
+#endif
+
+#ifndef OPENSSL_NO_BUF_FREELISTS
+       if (a->wbuf_freelist)
+               ssl_buf_freelist_free(a->wbuf_freelist);
+       if (a->rbuf_freelist)
+               ssl_buf_freelist_free(a->rbuf_freelist);
+#endif
+#ifndef OPENSSL_NO_TLSEXT
+# ifndef OPENSSL_NO_EC
+       if (a->tlsext_ecpointformatlist)
+               OPENSSL_free(a->tlsext_ecpointformatlist);
+       if (a->tlsext_ellipticcurvelist)
+               OPENSSL_free(a->tlsext_ellipticcurvelist);
+# endif /* OPENSSL_NO_EC */
+       if (a->alpn_client_proto_list != NULL)
+               OPENSSL_free(a->alpn_client_proto_list);
+#endif
+
        OPENSSL_free(a);
        }
 
@@ -1544,18 +2313,34 @@ void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
        X509_VERIFY_PARAM_set_depth(ctx->param, depth);
        }
 
-void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
+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_cert_masks(CERT *c, const SSL_CIPHER *cipher)
        {
        CERT_PKEY *cpk;
        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;
-       unsigned long mask,emask;
-       int have_ecc_cert, have_ecdh_tmp, ecdh_ok, ecdsa_ok, ecc_pkey_size;
+       unsigned long mask_k,mask_a,emask_k,emask_a;
+#ifndef OPENSSL_NO_ECDSA
+       int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
+#endif
+#ifndef OPENSSL_NO_ECDH
+       int have_ecdh_tmp, ecdh_ok;
+#endif
+#ifndef OPENSSL_NO_EC
        X509 *x = NULL;
        EVP_PKEY *ecc_pkey = NULL;
-       int signature_nid = 0;
-
+       int signature_nid = 0, pk_nid = 0, md_nid = 0;
+#endif
        if (c == NULL) return;
 
        kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
@@ -1576,135 +2361,183 @@ void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
 #endif
 
 #ifndef OPENSSL_NO_ECDH
-       have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
+       have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
 #endif
        cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
-       rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
+       rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
        rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
        cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
-       rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
+       rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
        cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
-       dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
+       dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
        cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
-       dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
+       dh_rsa=  cpk->valid_flags & CERT_PKEY_VALID;
        dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
        cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
 /* FIX THIS EAY EAY EAY */
-       dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
+       dh_dsa=  cpk->valid_flags & CERT_PKEY_VALID;
        dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
        cpk= &(c->pkeys[SSL_PKEY_ECC]);
-       have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
-       mask=0;
-       emask=0;
+#ifndef OPENSSL_NO_EC
+       have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
+#endif
+       mask_k=0;
+       mask_a=0;
+       emask_k=0;
+       emask_a=0;
+
+       
 
 #ifdef CIPHER_DEBUG
-       printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
-               rsa_tmp,rsa_tmp_export,dh_tmp,
+       printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
+               rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
                rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
 #endif
+       
+       cpk = &(c->pkeys[SSL_PKEY_GOST01]);
+       if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
+               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|=SSL_kRSA;
+               mask_k|=SSL_kRSA;
        if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
-               emask|=SSL_kRSA;
+               emask_k|=SSL_kRSA;
 
 #if 0
-       /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
-       if (    (dh_tmp || dh_rsa || dh_dsa) && 
+       /* The match needs to be both kDHE and aRSA or aDSA, so don't worry */
+       if (    (dh_tmp || dh_rsa || dh_dsa) &&
                (rsa_enc || rsa_sign || dsa_sign))
-               mask|=SSL_kEDH;
+               mask_k|=SSL_kDHE;
        if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
                (rsa_enc || rsa_sign || dsa_sign))
-               emask|=SSL_kEDH;
+               emask_k|=SSL_kDHE;
 #endif
 
-       if (dh_tmp_export) 
-               emask|=SSL_kEDH;
+       if (dh_tmp_export)
+               emask_k|=SSL_kDHE;
 
        if (dh_tmp)
-               mask|=SSL_kEDH;
+               mask_k|=SSL_kDHE;
+
+       if (dh_rsa) mask_k|=SSL_kDHr;
+       if (dh_rsa_export) emask_k|=SSL_kDHr;
 
-       if (dh_rsa) mask|=SSL_kDHr;
-       if (dh_rsa_export) emask|=SSL_kDHr;
+       if (dh_dsa) mask_k|=SSL_kDHd;
+       if (dh_dsa_export) emask_k|=SSL_kDHd;
 
-       if (dh_dsa) mask|=SSL_kDHd;
-       if (dh_dsa_export) emask|=SSL_kDHd;
+       if (emask_k & (SSL_kDHr|SSL_kDHd))
+               mask_a |= SSL_aDH;
 
        if (rsa_enc || rsa_sign)
                {
-               mask|=SSL_aRSA;
-               emask|=SSL_aRSA;
+               mask_a|=SSL_aRSA;
+               emask_a|=SSL_aRSA;
                }
 
        if (dsa_sign)
                {
-               mask|=SSL_aDSS;
-               emask|=SSL_aDSS;
+               mask_a|=SSL_aDSS;
+               emask_a|=SSL_aDSS;
                }
 
-       mask|=SSL_aNULL;
-       emask|=SSL_aNULL;
+       mask_a|=SSL_aNULL;
+       emask_a|=SSL_aNULL;
 
 #ifndef OPENSSL_NO_KRB5
-       mask|=SSL_kKRB5|SSL_aKRB5;
-       emask|=SSL_kKRB5|SSL_aKRB5;
+       mask_k|=SSL_kKRB5;
+       mask_a|=SSL_aKRB5;
+       emask_k|=SSL_kKRB5;
+       emask_a|=SSL_aKRB5;
 #endif
 
        /* 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)
                {
-                /* This call populates extension flags (ex_flags) */
-               x = (c->pkeys[SSL_PKEY_ECC]).x509;
+               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;
+               if (!(cpk->valid_flags & CERT_PKEY_SIGN))
+                       ecdsa_ok = 0;
                ecc_pkey = X509_get_pubkey(x);
-               ecc_pkey_size = (ecc_pkey != NULL) ? 
+               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);
+                       }
 #ifndef OPENSSL_NO_ECDH
                if (ecdh_ok)
                        {
-                       if ((signature_nid == NID_md5WithRSAEncryption) ||
-                           (signature_nid == NID_md4WithRSAEncryption) ||
-                           (signature_nid == NID_md2WithRSAEncryption))
+
+                       if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
                                {
-                               mask|=SSL_kECDH|SSL_aRSA;
+                               mask_k|=SSL_kECDHr;
+                               mask_a|=SSL_aECDH;
                                if (ecc_pkey_size <= 163)
-                                       emask|=SSL_kECDH|SSL_aRSA;
+                                       {
+                                       emask_k|=SSL_kECDHr;
+                                       emask_a|=SSL_aECDH;
+                                       }
                                }
-                       if (signature_nid == NID_ecdsa_with_SHA1)
+
+                       if (pk_nid == NID_X9_62_id_ecPublicKey)
                                {
-                               mask|=SSL_kECDH|SSL_aECDSA;
+                               mask_k|=SSL_kECDHe;
+                               mask_a|=SSL_aECDH;
                                if (ecc_pkey_size <= 163)
-                                       emask|=SSL_kECDH|SSL_aECDSA;
+                                       {
+                                       emask_k|=SSL_kECDHe;
+                                       emask_a|=SSL_aECDH;
+                                       }
                                }
                        }
 #endif
 #ifndef OPENSSL_NO_ECDSA
                if (ecdsa_ok)
                        {
-                       mask|=SSL_aECDSA;
-                       emask|=SSL_aECDSA;
+                       mask_a|=SSL_aECDSA;
+                       emask_a|=SSL_aECDSA;
                        }
 #endif
                }
+#endif
 
 #ifndef OPENSSL_NO_ECDH
        if (have_ecdh_tmp)
                {
-               mask|=SSL_kECDHE;
-               emask|=SSL_kECDHE;
+               mask_k|=SSL_kECDHE;
+               emask_k|=SSL_kECDHE;
                }
 #endif
-       c->mask=mask;
-       c->export_mask=emask;
+
+#ifndef OPENSSL_NO_PSK
+       mask_k |= SSL_kPSK;
+       mask_a |= SSL_aPSK;
+       emask_k |= SSL_kPSK;
+       emask_a |= SSL_aPSK;
+#endif
+
+       c->mask_k=mask_k;
+       c->mask_a=mask_a;
+       c->export_mask_k=emask_k;
+       c->export_mask_a=emask_a;
        c->valid=1;
        }
 
@@ -1712,12 +2545,18 @@ void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
 #define ku_reject(x, usage) \
        (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
 
-int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
+#ifndef OPENSSL_NO_EC
+
+int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
        {
-       unsigned long alg = cs->algorithms;
+       unsigned long alg_k, alg_a;
        EVP_PKEY *pkey = NULL;
        int keysize = 0;
-       int signature_nid = 0;
+       int signature_nid = 0, md_nid = 0, pk_nid = 0;
+       const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
+
+       alg_k = cs->algorithm_mkey;
+       alg_a = cs->algorithm_auth;
 
        if (SSL_C_IS_EXPORT(cs))
                {
@@ -1732,38 +2571,44 @@ int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
        /* 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);
-       if (alg & SSL_kECDH) 
+               OBJ_find_sigid_algs(signature_nid, &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))
                        {
+                       SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
                        return 0;
                        }
-               if (alg & SSL_aECDSA) 
+               if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
                        {
                        /* signature alg must be ECDSA */
-                       if (signature_nid != NID_ecdsa_with_SHA1)
+                       if (pk_nid != NID_X9_62_id_ecPublicKey)
                                {
+                               SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
                                return 0;
                                }
                        }
-               if (alg & SSL_aRSA)
+               if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
                        {
                        /* signature alg must be RSA */
-                       if ((signature_nid != NID_md5WithRSAEncryption) &&
-                           (signature_nid != NID_md4WithRSAEncryption) &&
-                           (signature_nid != NID_md2WithRSAEncryption))
+
+                       if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
                                {
+                               SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
                                return 0;
                                }
                        }
-               } 
-       else if (alg & SSL_aECDSA)
+               }
+       if (alg_a & SSL_aECDSA)
                {
                /* key usage, if present, must allow signing */
                if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
                        {
+                       SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
                        return 0;
                        }
                }
@@ -1771,97 +2616,108 @@ int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
        return 1;  /* all checks are ok */
        }
 
-/* THIS NEEDS CLEANING UP */
-X509 *ssl_get_server_send_cert(SSL *s)
+#endif
+
+static int ssl_get_server_cert_index(const SSL *s)
+       {
+       int idx;
+       idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
+       if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
+               idx = SSL_PKEY_RSA_SIGN;
+       if (idx == -1)
+               SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
+       return idx;
+       }
+
+CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
        {
-       unsigned long alg,mask,kalg;
        CERT *c;
-       int i,is_export;
+       int i;
 
-       c=s->cert;
+       c = s->cert;
        ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
-       alg=s->s3->tmp.new_cipher->algorithms;
-       is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
-       mask=is_export?c->export_mask:c->mask;
-       kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
-
-       if (kalg & SSL_kECDH)
-               {
-               /* we don't need to look at SSL_kECDHE 
-                * since no certificate is needed for
-                * anon ECDH and for authenticated
-                * ECDHE, the check for the auth 
-                * algorithm will set i correctly
-                * NOTE: For ECDH-RSA, we need an ECC
-                * not an RSA cert but for ECDHE-RSA
-                * we need an RSA cert. Placing the
-                * checks for SSL_kECDH before RSA
-                * checks ensures the correct cert is chosen.
-                */
-               i=SSL_PKEY_ECC;
-               }
-       else if (kalg & SSL_aECDSA)
-               {
-               i=SSL_PKEY_ECC;
-               }
-       else if (kalg & SSL_kDHr)
-               i=SSL_PKEY_DH_RSA;
-       else if (kalg & SSL_kDHd)
-               i=SSL_PKEY_DH_DSA;
-       else if (kalg & SSL_aDSS)
-               i=SSL_PKEY_DSA_SIGN;
-       else if (kalg & SSL_aRSA)
-               {
-               if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
-                       i=SSL_PKEY_RSA_SIGN;
-               else
-                       i=SSL_PKEY_RSA_ENC;
-               }
-       else if (kalg & SSL_aKRB5)
-               {
-               /* VRS something else here? */
-               return(NULL);
-               }
-       else /* if (kalg & SSL_aNULL) */
-               {
-               SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
-               return(NULL);
-               }
-       if (c->pkeys[i].x509 == NULL) return(NULL);
 
-       return(c->pkeys[i].x509);
+#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
+       /* Broken protocol test: return last used certificate: which may
+        * mismatch the one expected.
+        */
+       if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
+               return c->key;
+#endif
+
+       i = ssl_get_server_cert_index(s);
+
+       /* This may or may not be an error. */
+       if (i < 0)
+               return NULL;
+
+       /* May be NULL. */
+       return &c->pkeys[i];
        }
 
-EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
+EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
        {
-       unsigned long alg;
+       unsigned long alg_a;
        CERT *c;
+       int idx = -1;
 
-       alg=cipher->algorithms;
+       alg_a = cipher->algorithm_auth;
        c=s->cert;
 
-       if ((alg & SSL_aDSS) &&
+#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
+       /* Broken protocol test: use last key: which may
+        * mismatch the one expected.
+        */
+       if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
+               idx = c->key - c->pkeys;
+       else
+#endif
+
+       if ((alg_a & SSL_aDSS) &&
                (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
-               return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
-       else if (alg & SSL_aRSA)
+               idx = SSL_PKEY_DSA_SIGN;
+       else if (alg_a & SSL_aRSA)
                {
                if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
-                       return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
+                       idx = SSL_PKEY_RSA_SIGN;
                else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
-                       return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
-               else
-                       return(NULL);
+                       idx = SSL_PKEY_RSA_ENC;
                }
-       else if ((alg & SSL_aECDSA) &&
+       else if ((alg_a & SSL_aECDSA) &&
                 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
-               return(c->pkeys[SSL_PKEY_ECC].privatekey);
-       else /* if (alg & SSL_aNULL) */
+               idx = SSL_PKEY_ECC;
+       if (idx == -1)
                {
                SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
                return(NULL);
                }
+       if (pmd)
+               *pmd = c->pkeys[idx].digest;
+       return c->pkeys[idx].privatekey;
        }
 
+#ifndef OPENSSL_NO_TLSEXT
+int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
+                                  size_t *serverinfo_length)
+       {
+       CERT *c = NULL;
+       int i = 0;
+       *serverinfo_length = 0;
+
+       c = s->cert;
+       i = ssl_get_server_cert_index(s);
+
+       if (i == -1)
+               return 0;
+       if (c->pkeys[i].serverinfo == NULL)
+               return 0;
+
+       *serverinfo = c->pkeys[i].serverinfo;
+       *serverinfo_length = c->pkeys[i].serverinfo_length;
+       return 1;
+       }
+#endif
+
 void ssl_update_cache(SSL *s,int mode)
        {
        int i;
@@ -1870,14 +2726,14 @@ void ssl_update_cache(SSL *s,int mode)
         * and it would be rather hard to do anyway :-) */
        if (s->session->session_id_length == 0) return;
 
-       i=s->ctx->session_cache_mode;
+       i=s->session_ctx->session_cache_mode;
        if ((i & mode) && (!s->hit)
                && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
-                   || SSL_CTX_add_session(s->ctx,s->session))
-               && (s->ctx->new_session_cb != NULL))
+                   || SSL_CTX_add_session(s->session_ctx,s->session))
+               && (s->session_ctx->new_session_cb != NULL))
                {
                CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
-               if (!s->ctx->new_session_cb(s,s->session))
+               if (!s->session_ctx->new_session_cb(s,s->session))
                        SSL_SESSION_free(s->session);
                }
 
@@ -1886,20 +2742,25 @@ void ssl_update_cache(SSL *s,int mode)
                ((i & mode) == mode))
                {
                if (  (((mode & SSL_SESS_CACHE_CLIENT)
-                       ?s->ctx->stats.sess_connect_good
-                       :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
+                       ?s->session_ctx->stats.sess_connect_good
+                       :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
                        {
-                       SSL_CTX_flush_sessions(s->ctx,time(NULL));
+                       SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
                        }
                }
        }
 
-SSL_METHOD *SSL_get_ssl_method(SSL *s)
+const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
+       {
+       return ctx->method;
+       }
+
+const SSL_METHOD *SSL_get_ssl_method(SSL *s)
        {
        return(s->method);
        }
 
-int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
+int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
        {
        int conn= -1;
        int ret=1;
@@ -2042,6 +2903,8 @@ void SSL_set_accept_state(SSL *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);
        }
 
 void SSL_set_connect_state(SSL *s)
@@ -2052,6 +2915,8 @@ void SSL_set_connect_state(SSL *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);
        }
 
 int ssl_undefined_function(SSL *s)
@@ -2080,7 +2945,11 @@ SSL_METHOD *ssl_bad_method(int ver)
 
 const char *SSL_get_version(const SSL *s)
        {
-       if (s->version == TLS1_VERSION)
+       if (s->version == TLS1_2_VERSION)
+               return("TLSv1.2");
+       else if (s->version == TLS1_1_VERSION)
+               return("TLSv1.1");
+       else if (s->version == TLS1_VERSION)
                return("TLSv1");
        else if (s->version == SSL3_VERSION)
                return("SSLv3");
@@ -2096,7 +2965,7 @@ SSL *SSL_dup(SSL *s)
        X509_NAME *xn;
        SSL *ret;
        int i;
-                
+       
        if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
            return(NULL);
 
@@ -2174,6 +3043,7 @@ SSL *SSL_dup(SSL *s)
        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;
@@ -2234,6 +3104,7 @@ void ssl_clear_cipher_ctx(SSL *s)
                OPENSSL_free(s->enc_write_ctx);
                s->enc_write_ctx=NULL;
                }
+#ifndef OPENSSL_NO_COMP
        if (s->expand != NULL)
                {
                COMP_CTX_free(s->expand);
@@ -2244,9 +3115,9 @@ void ssl_clear_cipher_ctx(SSL *s)
                COMP_CTX_free(s->compress);
                s->compress=NULL;
                }
+#endif
        }
 
-/* Fix this function so that it takes an optional type parameter */
 X509 *SSL_get_certificate(const SSL *s)
        {
        if (s->cert != NULL)
@@ -2255,8 +3126,7 @@ X509 *SSL_get_certificate(const SSL *s)
                return(NULL);
        }
 
-/* Fix this function so that it takes an optional type parameter */
-EVP_PKEY *SSL_get_privatekey(SSL *s)
+EVP_PKEY *SSL_get_privatekey(const SSL *s)
        {
        if (s->cert != NULL)
                return(s->cert->key->privatekey);
@@ -2264,12 +3134,38 @@ EVP_PKEY *SSL_get_privatekey(SSL *s)
                return(NULL);
        }
 
-SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
+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);
        }
+#ifdef OPENSSL_NO_COMP
+const void *SSL_get_current_compression(SSL *s)
+       {
+       return NULL;
+       }
+const void *SSL_get_current_expansion(SSL *s)
+       {
+       return NULL;
+       }
+#else
 
 const COMP_METHOD *SSL_get_current_compression(SSL *s)
        {
@@ -2284,6 +3180,7 @@ const COMP_METHOD *SSL_get_current_expansion(SSL *s)
                return(s->expand->meth);
        return(NULL);
        }
+#endif
 
 int ssl_init_wbio_buffer(SSL *s,int push)
        {
@@ -2331,7 +3228,7 @@ void ssl_free_wbio_buffer(SSL *s)
                s->wbio=BIO_pop(s->wbio);
 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
                assert(s->wbio != NULL);
-#endif 
+#endif
        }
        BIO_free(s->bbio);
        s->bbio=NULL;
@@ -2377,6 +3274,24 @@ SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
        return(ssl->ctx);
        }
 
+SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
+       {
+       if (ssl->ctx == ctx)
+               return ssl->ctx;
+#ifndef OPENSSL_NO_TLSEXT
+       if (ctx == NULL)
+               ctx = ssl->initial_ctx;
+#endif
+       if (ssl->cert != NULL)
+               ssl_cert_free(ssl->cert);
+       ssl->cert = ssl_cert_dup(ctx->cert);
+       CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
+       if (ssl->ctx != NULL)
+               SSL_CTX_free(ssl->ctx); /* decrement reference count */
+       ssl->ctx = ctx;
+       return(ssl->ctx);
+       }
+
 #ifndef OPENSSL_NO_STDIO
 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
        {
@@ -2391,12 +3306,14 @@ int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
 #endif
 
 void SSL_set_info_callback(SSL *ssl,
-                          void (*cb)(const SSL *ssl,int type,int val))
+       void (*cb)(const SSL *ssl,int type,int val))
        {
        ssl->info_callback=cb;
        }
 
-void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl,int type,int val)
+/* 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;
        }
@@ -2406,6 +3323,11 @@ 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;
@@ -2517,13 +3439,13 @@ RSA *cb(SSL *ssl,int is_export,int keylength)
 
 #ifndef OPENSSL_NO_DH
 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
-                                                       int keylength))
+                                                        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))
+                                                int keylength))
        {
        SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
        }
@@ -2531,18 +3453,109 @@ void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
 
 #ifndef OPENSSL_NO_ECDH
 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
-                                                       int keylength))
+                                                                int keylength))
        {
        SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
        }
 
 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
-                                               int keylength))
+                                                        int keylength))
        {
        SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
        }
 #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;
+               }
+       if (ctx->psk_identity_hint != NULL)
+               OPENSSL_free(ctx->psk_identity_hint);
+       if (identity_hint != NULL)
+               {
+               ctx->psk_identity_hint = BUF_strdup(identity_hint);
+               if (ctx->psk_identity_hint == NULL)
+                       return 0;
+               }
+       else
+               ctx->psk_identity_hint = NULL;
+       return 1;
+       }
+
+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;
+               }
+       if (s->session->psk_identity_hint != NULL)
+               OPENSSL_free(s->session->psk_identity_hint);
+       if (identity_hint != NULL)
+               {
+               s->session->psk_identity_hint = BUF_strdup(identity_hint);
+               if (s->session->psk_identity_hint == NULL)
+                       return 0;
+               }
+       else
+               s->session->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,
+    unsigned int (*cb)(SSL *ssl, const char *hint,
+                       char *identity, unsigned int max_identity_len, unsigned char *psk,
+                       unsigned int max_psk_len))
+       {
+       s->psk_client_callback = cb;
+       }
+
+void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
+    unsigned int (*cb)(SSL *ssl, const char *hint,
+                       char *identity, unsigned int max_identity_len, unsigned char *psk,
+                       unsigned int max_psk_len))
+       {
+       ctx->psk_client_callback = cb;
+       }
+
+void SSL_set_psk_server_callback(SSL *s,
+    unsigned int (*cb)(SSL *ssl, const char *identity,
+                       unsigned char *psk, unsigned int max_psk_len))
+       {
+       s->psk_server_callback = cb;
+       }
+
+void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
+    unsigned int (*cb)(SSL *ssl, const char *identity,
+                       unsigned char *psk, unsigned int max_psk_len))
+       {
+       ctx->psk_server_callback = cb;
+       }
+#endif
 
 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))
        {
@@ -2553,7 +3566,53 @@ void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int con
        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);
+       }
 
+/* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
+ * vairable, freeing  EVP_MD_CTX previously stored in that variable, if
+ * any. If EVP_MD pointer is passed, initializes ctx with this md
+ * Returns 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_create();
+       if (md) EVP_DigestInit_ex(*hash,md,NULL);
+       return *hash;
+}
+void ssl_clear_hash_ctx(EVP_MD_CTX **hash) 
+{
+
+       if (*hash) EVP_MD_CTX_destroy(*hash);
+       *hash=NULL;
+}
+
+void SSL_set_debug(SSL *s, int debug)
+       {
+       s->debug = debug;
+       }
+
+int SSL_cache_hit(SSL *s)
+       {
+       return s->hit;
+       }
+
+int SSL_is_server(SSL *s)
+       {
+       return s->server;
+       }
 
 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
 #include "../crypto/bio/bss_file.c"
@@ -2561,3 +3620,5 @@ void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int con
 
 IMPLEMENT_STACK_OF(SSL_CIPHER)
 IMPLEMENT_STACK_OF(SSL_COMP)
+IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,
+                                   ssl_cipher_id);