OpenSSL 0.9.7 stable 2002 05 08 merge

1 files changed, 327 insertions, 110 deletions

diff --git a/src/lib/libssl/ssl_lib.c b/src/lib/libssl/ssl_lib.c
index 1fe85b6cb7..df307a80c5 100644
--- a/src/lib/libssl/ssl_lib.c
+++ b/src/lib/libssl/ssl_lib.c
@@ -57,22 +57,73 @@
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
+/* ====================================================================
+ * Copyright (c) 1998-2001 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
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
 
 
-#include <assert.h>
+#ifdef REF_CHECK
+#  include <assert.h>
+#endif
 #include <stdio.h>
 #include <openssl/objects.h>
 #include <openssl/lhash.h>
 #include <openssl/x509v3.h>
 #include "ssl_locl.h"
+#include "kssl_lcl.h"
 
 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
 
-static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
-static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
-static int ssl_meth_num=0;
-static int ssl_ctx_meth_num=0;
-
 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
         /* evil casts, but these functions are only called if there's a library bug */
         (int (*)(SSL *,int))ssl_undefined_function,
@@ -85,7 +136,6 @@ OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
 
 int SSL_clear(SSL *s)
         {
-        int state;
 
         if (s->method == NULL)
                 {
@@ -93,6 +143,12 @@ int SSL_clear(SSL *s)
                 return(0);
                 }
 
+        if (ssl_clear_bad_session(s))
+                {
+                SSL_SESSION_free(s->session);
+                s->session=NULL;
+                }
+
         s->error=0;
         s->hit=0;
         s->shutdown=0;
@@ -105,12 +161,11 @@ int SSL_clear(SSL *s)
 #else
         if (s->new_session)
                 {
-                SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
+                SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
                 return 0;
                 }
 #endif
 
-        state=s->state; /* Keep to check if we throw away the session-id */
         s->type=0;
 
         s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
@@ -131,18 +186,12 @@ int SSL_clear(SSL *s)
 
         ssl_clear_cipher_ctx(s);
 
-        if (ssl_clear_bad_session(s))
-                {
-                SSL_SESSION_free(s->session);
-                s->session=NULL;
-                }
-
         s->first_packet=0;
 
 #if 1
         /* 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->session == NULL) && (s->method != s->ctx->method))
+        if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
                 {
                 s->method->ssl_free(s);
                 s->method=s->ctx->method;
@@ -191,6 +240,14 @@ SSL *SSL_new(SSL_CTX *ctx)
         if (s == NULL) goto err;
         memset(s,0,sizeof(SSL));
 
+#ifndef OPENSSL_NO_KRB5
+        s->kssl_ctx = kssl_ctx_new();
+#endif  /* OPENSSL_NO_KRB5 */
+
+        s->options=ctx->options;
+        s->mode=ctx->mode;
+        s->max_cert_list=ctx->max_cert_list;
+
         if (ctx->cert != NULL)
                 {
                 /* Earlier library versions used to copy the pointer to
@@ -209,13 +266,20 @@ SSL *SSL_new(SSL_CTX *ctx)
                 }
         else
                 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
-        s->sid_ctx_length=ctx->sid_ctx_length;
-        memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
+
+        s->read_ahead=ctx->read_ahead;
+        s->msg_callback=ctx->msg_callback;
+        s->msg_callback_arg=ctx->msg_callback_arg;
         s->verify_mode=ctx->verify_mode;
         s->verify_depth=ctx->verify_depth;
+        s->sid_ctx_length=ctx->sid_ctx_length;
+        memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
         s->verify_callback=ctx->default_verify_callback;
+        s->generate_session_id=ctx->generate_session_id;
         s->purpose = ctx->purpose;
         s->trust = ctx->trust;
+        s->quiet_shutdown=ctx->quiet_shutdown;
+
         CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
         s->ctx=ctx;
 
@@ -226,15 +290,12 @@ SSL *SSL_new(SSL_CTX *ctx)
         if (!s->method->ssl_new(s))
                 goto err;
 
-        s->quiet_shutdown=ctx->quiet_shutdown;
         s->references=1;
         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
-        s->options=ctx->options;
-        s->mode=ctx->mode;
-        s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */
+
         SSL_clear(s);
 
-        CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
+        CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
 
         return(s);
 err:
@@ -278,45 +339,71 @@ int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
     return 1;
     }
 
-int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
-{
-        if(X509_PURPOSE_get_by_id(purpose) == -1) {
-                SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
-                return 0;
+int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
+        {
+        CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+        ctx->generate_session_id = cb;
+        CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+        return 1;
         }
-        s->purpose = purpose;
+
+int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
+        {
+        CRYPTO_w_lock(CRYPTO_LOCK_SSL);
+        ssl->generate_session_id = cb;
+        CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
         return 1;
-}
+        }
+
+int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
+                                unsigned int id_len)
+        {
+        /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
+         * we can "construct" a session to give us the desired check - ie. to
+         * find if there's a session in the hash table that would conflict with
+         * any new session built out of this id/id_len and the ssl_version in
+         * use by this SSL. */
+        SSL_SESSION r, *p;
+        r.ssl_version = ssl->version;
+        r.session_id_length = id_len;
+        memcpy(r.session_id, id, id_len);
+        /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
+         * callback is calling us to check the uniqueness of a shorter ID, it
+         * must be compared as a padded-out ID because that is what it will be
+         * converted to when the callback has finished choosing it. */
+        if((r.ssl_version == SSL2_VERSION) &&
+                        (id_len < SSL2_SSL_SESSION_ID_LENGTH))
+                {
+                memset(r.session_id + id_len, 0,
+                        SSL2_SSL_SESSION_ID_LENGTH - id_len);
+                r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
+                }
+
+        CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
+        p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
+        CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
+        return (p != NULL);
+        }
+
+int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
+        {
+        return X509_PURPOSE_set(&s->purpose, purpose);
+        }
 
 int SSL_set_purpose(SSL *s, int purpose)
-{
-        if(X509_PURPOSE_get_by_id(purpose) == -1) {
-                SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
-                return 0;
+        {
+        return X509_PURPOSE_set(&s->purpose, purpose);
         }
-        s->purpose = purpose;
-        return 1;
-}
-        
+
 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
-{
-        if(X509_TRUST_get_by_id(trust) == -1) {
-                SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
-                return 0;
+        {
+        return X509_TRUST_set(&s->trust, trust);
         }
-        s->trust = trust;
-        return 1;
-}
 
 int SSL_set_trust(SSL *s, int trust)
-{
-        if(X509_TRUST_get_by_id(trust) == -1) {
-                SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
-                return 0;
+        {
+        return X509_TRUST_set(&s->trust, trust);
         }
-        s->trust = trust;
-        return 1;
-}
 
 void SSL_free(SSL *s)
         {
@@ -338,7 +425,7 @@ void SSL_free(SSL *s)
                 }
 #endif
 
-        CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
+        CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
 
         if (s->bbio != NULL)
                 {
@@ -411,6 +498,11 @@ BIO *SSL_get_wbio(SSL *s)
 
 int SSL_get_fd(SSL *s)
         {
+        return(SSL_get_rfd(s));
+        }
+
+int SSL_get_rfd(SSL *s)
+        {
         int ret= -1;
         BIO *b,*r;
 
@@ -421,7 +513,19 @@ int SSL_get_fd(SSL *s)
         return(ret);
         }
 
-#ifndef NO_SOCK
+int SSL_get_wfd(SSL *s)
+        {
+        int ret= -1;
+        BIO *b,*r;
+
+        b=SSL_get_wbio(s);
+        r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
+        if (r != NULL)
+                BIO_get_fd(r,&ret);
+        return(ret);
+        }
+
+#ifndef OPENSSL_NO_SOCK
 int SSL_set_fd(SSL *s,int fd)
         {
         int ret=0;
@@ -576,6 +680,13 @@ int SSL_get_read_ahead(SSL *s)
 
 int SSL_pending(SSL *s)
         {
+        /* SSL_pending cannot work properly if read-ahead is enabled
+         * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
+         * and it is impossible to fix since SSL_pending cannot report
+         * errors that may be observed while scanning the new data.
+         * (Note that SSL_pending() is often used as a boolean value,
+         * so we'd better not return -1.)
+         */
         return(s->method->ssl_pending(s));
         }
 
@@ -778,11 +889,21 @@ int SSL_shutdown(SSL *s)
 
 int SSL_renegotiate(SSL *s)
         {
-        s->new_session=1;
+        if (s->new_session == 0)
+                {
+                s->new_session=1;
+                }
         return(s->method->ssl_renegotiate(s));
         }
 
-long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
+int SSL_renegotiate_pending(SSL *s)
+        {
+        /* becomes true when negotiation is requested;
+         * false again once a handshake has finished */
+        return (s->new_session != 0);
+        }
+
+long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
         {
         long l;
 
@@ -794,10 +915,21 @@ long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
                 l=s->read_ahead;
                 s->read_ahead=larg;
                 return(l);
+
+        case SSL_CTRL_SET_MSG_CALLBACK_ARG:
+                s->msg_callback_arg = parg;
+                return 1;
+
         case SSL_CTRL_OPTIONS:
                 return(s->options|=larg);
         case SSL_CTRL_MODE:
                 return(s->mode|=larg);
+        case SSL_CTRL_GET_MAX_CERT_LIST:
+                return(s->max_cert_list);
+        case SSL_CTRL_SET_MAX_CERT_LIST:
+                l=s->max_cert_list;
+                s->max_cert_list=larg;
+                return(l);
         default:
                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
                 }
@@ -807,6 +939,10 @@ long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
         {
         switch(cmd)
                 {
+        case SSL_CTRL_SET_MSG_CALLBACK:
+                s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
+                return 1;
+                
         default:
                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
                 }
@@ -817,7 +953,7 @@ struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
         return ctx->sessions;
         }
 
-long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
+long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
         {
         long l;
 
@@ -829,6 +965,17 @@ long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
                 l=ctx->read_ahead;
                 ctx->read_ahead=larg;
                 return(l);
+                
+        case SSL_CTRL_SET_MSG_CALLBACK_ARG:
+                ctx->msg_callback_arg = parg;
+                return 1;
+
+        case SSL_CTRL_GET_MAX_CERT_LIST:
+                return(ctx->max_cert_list);
+        case SSL_CTRL_SET_MAX_CERT_LIST:
+                l=ctx->max_cert_list;
+                ctx->max_cert_list=larg;
+                return(l);
 
         case SSL_CTRL_SET_SESS_CACHE_SIZE:
                 l=ctx->session_cache_size;
@@ -880,6 +1027,10 @@ long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
         {
         switch(cmd)
                 {
+        case SSL_CTRL_SET_MSG_CALLBACK:
+                ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
+                return 1;
+
         default:
                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
                 }
@@ -1018,6 +1169,9 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
         int i,j=0;
         SSL_CIPHER *c;
         unsigned char *q;
+#ifndef OPENSSL_NO_KRB5
+        int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
+#endif /* OPENSSL_NO_KRB5 */
 
         if (sk == NULL) return(0);
         q=p;
@@ -1025,6 +1179,10 @@ 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 */                    
                 j=ssl_put_cipher_by_char(s,c,p);
                 p+=j;
                 }
@@ -1087,6 +1245,11 @@ unsigned long SSL_SESSION_hash(SSL_SESSION *a)
         return(l);
         }
 
+/* NB: If this function (or indeed the hash function which uses a sort of
+ * coarser function than this one) is changed, ensure
+ * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
+ * able to construct an SSL_SESSION that will collide with any existing session
+ * with a matching session ID. */
 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
         {
         if (a->ssl_version != b->ssl_version)
@@ -1096,6 +1259,13 @@ int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
         return(memcmp(a->session_id,b->session_id,a->session_id_length));
         }
 
+/* These wrapper functions should remain rather than redeclaring
+ * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
+ * variable. The reason is that the functions aren't static, they're exposed via
+ * ssl.h. */
+static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
+static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
+
 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
         {
         SSL_CTX *ret=NULL;
@@ -1128,9 +1298,10 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
         /* We take the system default */
         ret->session_timeout=meth->get_timeout();
 
-        ret->new_session_cb=NULL;
-        ret->remove_session_cb=NULL;
-        ret->get_session_cb=NULL;
+        ret->new_session_cb=0;
+        ret->remove_session_cb=0;
+        ret->get_session_cb=0;
+        ret->generate_session_id=0;
 
         memset((char *)&ret->stats,0,sizeof(ret->stats));
 
@@ -1145,21 +1316,26 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
 
         ret->info_callback=NULL;
 
-        ret->app_verify_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->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
+        ret->sid_ctx_length=0;
         ret->default_verify_callback=NULL;
         if ((ret->cert=ssl_cert_new()) == NULL)
                 goto err;
 
-        ret->default_passwd_callback=NULL;
+        ret->default_passwd_callback=0;
         ret->default_passwd_callback_userdata=NULL;
-        ret->client_cert_cb=NULL;
+        ret->client_cert_cb=0;
 
-        ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
+        ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
+                        LHASH_COMP_FN(SSL_SESSION_cmp));
         if (ret->sessions == NULL) goto err;
         ret->cert_store=X509_STORE_new();
         if (ret->cert_store == NULL) goto err;
@@ -1193,7 +1369,7 @@ SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
                 goto err;
 
-        CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
+        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();
@@ -1206,8 +1382,10 @@ err2:
         return(NULL);
         }
 
+#if 0
 static void SSL_COMP_free(SSL_COMP *comp)
     { OPENSSL_free(comp); }
+#endif
 
 void SSL_CTX_free(SSL_CTX *a)
         {
@@ -1227,7 +1405,7 @@ void SSL_CTX_free(SSL_CTX *a)
                 abort(); /* ok */
                 }
 #endif
-        CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
+        CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
 
         if (a->sessions != NULL)
                 {
@@ -1246,8 +1424,12 @@ void SSL_CTX_free(SSL_CTX *a)
                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
         if (a->extra_certs != NULL)
                 sk_X509_pop_free(a->extra_certs,X509_free);
+#if 0 /* This should never be done, since it removes a global database */
         if (a->comp_methods != NULL)
                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
+#else
+        a->comp_methods = NULL;
+#endif
         OPENSSL_free(a);
         }
 
@@ -1261,23 +1443,16 @@ void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
         ctx->default_passwd_callback_userdata=u;
         }
 
-void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
+void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
         {
-        /* now
-         *     int (*cb)(X509_STORE_CTX *),
-         * but should be
-         *     int (*cb)(X509_STORE_CTX *, void *arg)
-         */
         ctx->app_verify_callback=cb;
-        ctx->app_verify_arg=arg; /* never used */
+        ctx->app_verify_arg=arg;
         }
 
 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
         {
         ctx->verify_mode=mode;
         ctx->default_verify_callback=cb;
-        /* This needs cleaning up EAY EAY EAY */
-        X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
         }
 
 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
@@ -1297,14 +1472,14 @@ void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
 
         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
 
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
 #else
         rsa_tmp=rsa_tmp_export=0;
 #endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
         dh_tmp_export=(c->dh_tmp_cb != NULL ||
                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
@@ -1378,6 +1553,11 @@ void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
         mask|=SSL_aNULL;
         emask|=SSL_aNULL;
 
+#ifndef OPENSSL_NO_KRB5
+        mask|=SSL_kKRB5|SSL_aKRB5;
+        emask|=SSL_kKRB5|SSL_aKRB5;
+#endif
+
         c->mask=mask;
         c->export_mask=emask;
         c->valid=1;
@@ -1410,9 +1590,14 @@ X509 *ssl_get_server_send_cert(SSL *s)
                 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,SSL_R_INTERNAL_ERROR);
+                SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
                 return(NULL);
                 }
         if (c->pkeys[i].x509 == NULL) return(NULL);
@@ -1441,7 +1626,7 @@ EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
                 }
         else /* if (alg & SSL_aNULL) */
                 {
-                SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
+                SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
                 return(NULL);
                 }
         }
@@ -1454,9 +1639,10 @@ 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;
 
-        if ((s->ctx->session_cache_mode & mode)
-                && (!s->hit)
-                && SSL_CTX_add_session(s->ctx,s->session)
+        i=s->ctx->session_cache_mode;
+        if ((i & mode) && (!s->hit)
+                && ((i & SSL_SESS_CACHE_NO_INTERNAL_LOOKUP)
+                    || SSL_CTX_add_session(s->ctx,s->session))
                 && (s->ctx->new_session_cb != NULL))
                 {
                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
@@ -1465,7 +1651,6 @@ void ssl_update_cache(SSL *s,int mode)
                 }
 
         /* auto flush every 255 connections */
-        i=s->ctx->session_cache_mode;
         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
                 ((i & mode) == mode))
                 {
@@ -1549,6 +1734,8 @@ int SSL_get_error(SSL *s,int i)
                         reason=BIO_get_retry_reason(bio);
                         if (reason == BIO_RR_CONNECT)
                                 return(SSL_ERROR_WANT_CONNECT);
+                        else if (reason == BIO_RR_ACCEPT)
+                                return(SSL_ERROR_WANT_ACCEPT);
                         else
                                 return(SSL_ERROR_SYSCALL); /* unknown */
                         }
@@ -1567,6 +1754,8 @@ int SSL_get_error(SSL *s,int i)
                         reason=BIO_get_retry_reason(bio);
                         if (reason == BIO_RR_CONNECT)
                                 return(SSL_ERROR_WANT_CONNECT);
+                        else if (reason == BIO_RR_ACCEPT)
+                                return(SSL_ERROR_WANT_ACCEPT);
                         else
                                 return(SSL_ERROR_SYSCALL);
                         }
@@ -1667,7 +1856,11 @@ SSL *SSL_dup(SSL *s)
                  
         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
             return(NULL);
-                          
+
+        ret->version = s->version;
+        ret->type = s->type;
+        ret->method = s->method;
+
         if (s->session != NULL)
                 {
                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
@@ -1698,18 +1891,23 @@ SSL *SSL_dup(SSL *s)
                         s->sid_ctx, s->sid_ctx_length);
                 }
 
+        ret->options=s->options;
+        ret->mode=s->mode;
+        SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
+        ret->msg_callback = s->msg_callback;
+        ret->msg_callback_arg = s->msg_callback_arg;
         SSL_set_verify(ret,SSL_get_verify_mode(s),
                 SSL_get_verify_callback(s));
         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
+        ret->generate_session_id = s->generate_session_id;
 
         SSL_set_info_callback(ret,SSL_get_info_callback(s));
         
         ret->debug=s->debug;
-        ret->options=s->options;
 
         /* copy app data, a little dangerous perhaps */
-        if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
+        if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
                 goto err;
 
         /* setup rbio, and wbio */
@@ -1728,6 +1926,19 @@ SSL *SSL_dup(SSL *s)
                 else
                         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->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->rstate=s->rstate;
+        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->purpose=s->purpose;
+        ret->trust=s->trust;
 
         /* dup the cipher_list and cipher_list_by_id stacks */
         if (s->cipher_list != NULL)
@@ -1756,11 +1967,6 @@ SSL *SSL_dup(SSL *s)
                         }
                 }
 
-        ret->shutdown=s->shutdown;
-        ret->state=s->state;
-        ret->handshake_func=s->handshake_func;
-        ret->server=s->server;
-
         if (0)
                 {
 err:
@@ -1913,7 +2119,7 @@ SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
         return(ssl->ctx);
         }
 
-#ifndef NO_STDIO
+#ifndef OPENSSL_NO_STDIO
 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
         {
         return(X509_STORE_set_default_paths(ctx->cert_store));
@@ -1926,14 +2132,15 @@ int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
         }
 #endif
 
-void SSL_set_info_callback(SSL *ssl,void (*cb)())
+void SSL_set_info_callback(SSL *ssl,
+                           void (*cb)(const SSL *ssl,int type,int val))
         {
         ssl->info_callback=cb;
         }
 
-void (*SSL_get_info_callback(SSL *ssl))(void)
+void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val)
         {
-        return((void (*)())ssl->info_callback);
+        return ssl->info_callback;
         }
 
 int SSL_state(SSL *ssl)
@@ -1954,9 +2161,8 @@ long SSL_get_verify_result(SSL *ssl)
 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
         {
-        ssl_meth_num++;
-        return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
-                &ssl_meth,argl,argp,new_func,dup_func,free_func));
+        return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
+                                new_func, dup_func, free_func);
         }
 
 int SSL_set_ex_data(SSL *s,int idx,void *arg)
@@ -1972,9 +2178,8 @@ void *SSL_get_ex_data(SSL *s,int idx)
 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
         {
-        ssl_ctx_meth_num++;
-        return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
-                &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
+        return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
+                                new_func, dup_func, free_func);
         }
 
 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
@@ -2015,7 +2220,7 @@ int SSL_want(SSL *s)
  * \param cb the callback
  */
 
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
                                                           int is_export,
                                                           int keylength))
@@ -2052,21 +2257,33 @@ RSA *cb(SSL *ssl,int is_export,int keylength)
  * \param dh the callback
  */
 
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
                                                         int keylength))
-    {
-    SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
-    }
+        {
+        SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
+        }
 
 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
                                                 int keylength))
-    {
-    SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
-    }
+        {
+        SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
+        }
 #endif
 
-#if defined(_WINDLL) && defined(WIN16)
+
+void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
+        {
+        SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
+        }
+void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
+        {
+        SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
+        }
+
+
+
+#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
 #include "../crypto/bio/bss_file.c"
 #endif