1 files changed, 253 insertions, 62 deletions

diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c
index 2ecfbb77cb..a6d869df59 100644
--- a/src/lib/libssl/s3_both.c
+++ b/src/lib/libssl/s3_both.c
@@ -160,14 +160,29 @@ int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
                 p= &(d[4]);
 
                 i=s->method->ssl3_enc->final_finish_mac(s,
-                        &(s->s3->finish_dgst1),
-                        &(s->s3->finish_dgst2),
                         sender,slen,s->s3->tmp.finish_md);
                 s->s3->tmp.finish_md_len = i;
                 memcpy(p, s->s3->tmp.finish_md, i);
                 p+=i;
                 l=i;
 
+                /* Copy the finished so we can use it for
+                   renegotiation checks */
+                if(s->type == SSL_ST_CONNECT)
+                        {
+                         OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+                         memcpy(s->s3->previous_client_finished, 
+                             s->s3->tmp.finish_md, i);
+                         s->s3->previous_client_finished_len=i;
+                        }
+                else
+                        {
+                        OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+                        memcpy(s->s3->previous_server_finished, 
+                            s->s3->tmp.finish_md, i);
+                        s->s3->previous_server_finished_len=i;
+                        }
+
 #ifdef OPENSSL_SYS_WIN16
                 /* MSVC 1.5 does not clear the top bytes of the word unless
                  * I do this.
@@ -232,6 +247,23 @@ int ssl3_get_finished(SSL *s, int a, int b)
                 goto f_err;
                 }
 
+        /* Copy the finished so we can use it for
+           renegotiation checks */
+        if(s->type == SSL_ST_ACCEPT)
+                {
+                OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+                memcpy(s->s3->previous_client_finished, 
+                    s->s3->tmp.peer_finish_md, i);
+                s->s3->previous_client_finished_len=i;
+                }
+        else
+                {
+                OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+                memcpy(s->s3->previous_server_finished, 
+                    s->s3->tmp.peer_finish_md, i);
+                s->s3->previous_server_finished_len=i;
+                }
+
         return(1);
 f_err:
         ssl3_send_alert(s,SSL3_AL_FATAL,al);
@@ -264,15 +296,31 @@ int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
         return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
         }
 
+static int ssl3_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x)
+        {
+        int n;
+        unsigned char *p;
+
+        n=i2d_X509(x,NULL);
+        if (!BUF_MEM_grow_clean(buf,(int)(n+(*l)+3)))
+                {
+                SSLerr(SSL_F_SSL3_ADD_CERT_TO_BUF,ERR_R_BUF_LIB);
+                return(-1);
+                }
+        p=(unsigned char *)&(buf->data[*l]);
+        l2n3(n,p);
+        i2d_X509(x,&p);
+        *l+=n+3;
+
+        return(0);
+        }
+
 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
         {
         unsigned char *p;
-        int n,i;
+        int i;
         unsigned long l=7;
         BUF_MEM *buf;
-        X509_STORE_CTX xs_ctx;
-        X509_OBJECT obj;
-
         int no_chain;
 
         if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs)
@@ -289,58 +337,42 @@ unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
                 }
         if (x != NULL)
                 {
-                if(!no_chain && !X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL))
+                if (no_chain)
                         {
-                        SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
-                        return(0);
+                        if (ssl3_add_cert_to_buf(buf, &l, x))
+                                return(0);
                         }
-
-                for (;;)
+                else
                         {
-                        n=i2d_X509(x,NULL);
-                        if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
+                        X509_STORE_CTX xs_ctx;
+
+                        if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL))
                                 {
-                                SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+                                SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
                                 return(0);
                                 }
-                        p=(unsigned char *)&(buf->data[l]);
-                        l2n3(n,p);
-                        i2d_X509(x,&p);
-                        l+=n+3;
-
-                        if (no_chain)
-                                break;
-
-                        if (X509_NAME_cmp(X509_get_subject_name(x),
-                                X509_get_issuer_name(x)) == 0) break;
-
-                        i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
-                                X509_get_issuer_name(x),&obj);
-                        if (i <= 0) break;
-                        x=obj.data.x509;
-                        /* Count is one too high since the X509_STORE_get uped the
-                         * ref count */
-                        X509_free(x);
-                        }
-                if (!no_chain)
+                        X509_verify_cert(&xs_ctx);
+                        /* Don't leave errors in the queue */
+                        ERR_clear_error();
+                        for (i=0; i < sk_X509_num(xs_ctx.chain); i++)
+                                {
+                                x = sk_X509_value(xs_ctx.chain, i);
+
+                                if (ssl3_add_cert_to_buf(buf, &l, x))
+                                        {
+                                        X509_STORE_CTX_cleanup(&xs_ctx);
+                                        return 0;
+                                        }
+                                }
                         X509_STORE_CTX_cleanup(&xs_ctx);
+                        }
                 }
-
         /* Thawte special :-) */
-        if (s->ctx->extra_certs != NULL)
         for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
                 {
                 x=sk_X509_value(s->ctx->extra_certs,i);
-                n=i2d_X509(x,NULL);
-                if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
-                        {
-                        SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+                if (ssl3_add_cert_to_buf(buf, &l, x))
                         return(0);
-                        }
-                p=(unsigned char *)&(buf->data[l]);
-                l2n3(n,p);
-                i2d_X509(x,&p);
-                l+=n+3;
                 }
 
         l-=7;
@@ -518,9 +550,16 @@ int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
         else if (i == EVP_PKEY_EC)
                 {
                 ret = SSL_PKEY_ECC;
-                }
+                }       
 #endif
-
+        else if (i == NID_id_GostR3410_94 || i == NID_id_GostR3410_94_cc) 
+                {
+                ret = SSL_PKEY_GOST94;
+                }
+        else if (i == NID_id_GostR3410_2001 || i == NID_id_GostR3410_2001_cc) 
+                {
+                ret = SSL_PKEY_GOST01;
+                }
 err:
         if(!pkey) EVP_PKEY_free(pk);
         return(ret);
@@ -586,37 +625,189 @@ int ssl_verify_alarm_type(long type)
         return(al);
         }
 
-int ssl3_setup_buffers(SSL *s)
+#ifndef OPENSSL_NO_BUF_FREELISTS
+/* On some platforms, malloc() performance is bad enough that you can't just
+ * free() and malloc() buffers all the time, so we need to use freelists from
+ * unused buffers.  Currently, each freelist holds memory chunks of only a
+ * given size (list->chunklen); other sized chunks are freed and malloced.
+ * This doesn't help much if you're using many different SSL option settings
+ * with a given context.  (The options affecting buffer size are
+ * max_send_fragment, read buffer vs write buffer,
+ * SSL_OP_MICROSOFT_BIG_WRITE_BUFFER, SSL_OP_NO_COMPRESSION, and
+ * SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS.)  Using a separate freelist for every
+ * possible size is not an option, since max_send_fragment can take on many
+ * different values.
+ *
+ * If you are on a platform with a slow malloc(), and you're using SSL
+ * connections with many different settings for these options, and you need to
+ * use the SSL_MOD_RELEASE_BUFFERS feature, you have a few options:
+ *    - Link against a faster malloc implementation.
+ *    - Use a separate SSL_CTX for each option set.
+ *    - Improve this code.
+ */
+static void *
+freelist_extract(SSL_CTX *ctx, int for_read, int sz)
+        {
+        SSL3_BUF_FREELIST *list;
+        SSL3_BUF_FREELIST_ENTRY *ent = NULL;
+        void *result = NULL;
+
+        CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+        list = for_read ? ctx->rbuf_freelist : ctx->wbuf_freelist;
+        if (list != NULL && sz == (int)list->chunklen)
+                ent = list->head;
+        if (ent != NULL)
+                {
+                list->head = ent->next;
+                result = ent;
+                if (--list->len == 0)
+                        list->chunklen = 0;
+                }
+        CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+        if (!result)
+                result = OPENSSL_malloc(sz);
+        return result;
+}
+
+static void
+freelist_insert(SSL_CTX *ctx, int for_read, size_t sz, void *mem)
+        {
+        SSL3_BUF_FREELIST *list;
+        SSL3_BUF_FREELIST_ENTRY *ent;
+
+        CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+        list = for_read ? ctx->rbuf_freelist : ctx->wbuf_freelist;
+        if (list != NULL &&
+            (sz == list->chunklen || list->chunklen == 0) &&
+            list->len < ctx->freelist_max_len &&
+            sz >= sizeof(*ent))
+                {
+                list->chunklen = sz;
+                ent = mem;
+                ent->next = list->head;
+                list->head = ent;
+                ++list->len;
+                mem = NULL;
+                }
+
+        CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+        if (mem)
+                OPENSSL_free(mem);
+        }
+#else
+#define freelist_extract(c,fr,sz) OPENSSL_malloc(sz)
+#define freelist_insert(c,fr,sz,m) OPENSSL_free(m)
+#endif
+
+int ssl3_setup_read_buffer(SSL *s)
         {
         unsigned char *p;
-        unsigned int extra;
-        size_t len;
+        size_t len,align=0,headerlen;
+        
+        if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+                headerlen = DTLS1_RT_HEADER_LENGTH;
+        else
+                headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+        align = (-SSL3_RT_HEADER_LENGTH)&(SSL3_ALIGN_PAYLOAD-1);
+#endif
 
         if (s->s3->rbuf.buf == NULL)
                 {
+                len = SSL3_RT_MAX_PLAIN_LENGTH
+                        + SSL3_RT_MAX_ENCRYPTED_OVERHEAD
+                        + headerlen + align;
                 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
-                        extra=SSL3_RT_MAX_EXTRA;
-                else
-                        extra=0;
-                len = SSL3_RT_MAX_PACKET_SIZE + extra;
-                if ((p=OPENSSL_malloc(len)) == NULL)
+                        {
+                        s->s3->init_extra = 1;
+                        len += SSL3_RT_MAX_EXTRA;
+                        }
+#ifndef OPENSSL_NO_COMP
+                if (!(s->options & SSL_OP_NO_COMPRESSION))
+                        len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+                if ((p=freelist_extract(s->ctx, 1, len)) == NULL)
                         goto err;
                 s->s3->rbuf.buf = p;
                 s->s3->rbuf.len = len;
                 }
 
+        s->packet= &(s->s3->rbuf.buf[0]);
+        return 1;
+
+err:
+        SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER,ERR_R_MALLOC_FAILURE);
+        return 0;
+        }
+
+int ssl3_setup_write_buffer(SSL *s)
+        {
+        unsigned char *p;
+        size_t len,align=0,headerlen;
+
+        if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+                headerlen = DTLS1_RT_HEADER_LENGTH + 1;
+        else
+                headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+        align = (-SSL3_RT_HEADER_LENGTH)&(SSL3_ALIGN_PAYLOAD-1);
+#endif
+
         if (s->s3->wbuf.buf == NULL)
                 {
-                len = SSL3_RT_MAX_PACKET_SIZE;
-                len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */
-                if ((p=OPENSSL_malloc(len)) == NULL)
+                len = s->max_send_fragment
+                        + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD
+                        + headerlen + align;
+#ifndef OPENSSL_NO_COMP
+                if (!(s->options & SSL_OP_NO_COMPRESSION))
+                        len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+                if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
+                        len += headerlen + align
+                                + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
+
+                if ((p=freelist_extract(s->ctx, 0, len)) == NULL)
                         goto err;
                 s->s3->wbuf.buf = p;
                 s->s3->wbuf.len = len;
                 }
-        s->packet= &(s->s3->rbuf.buf[0]);
-        return(1);
+
+        return 1;
+
 err:
-        SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
-        return(0);
+        SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER,ERR_R_MALLOC_FAILURE);
+        return 0;
+        }
+
+
+int ssl3_setup_buffers(SSL *s)
+        {
+        if (!ssl3_setup_read_buffer(s))
+                return 0;
+        if (!ssl3_setup_write_buffer(s))
+                return 0;
+        return 1;
         }
+
+int ssl3_release_write_buffer(SSL *s)
+        {
+        if (s->s3->wbuf.buf != NULL)
+                {
+                freelist_insert(s->ctx, 0, s->s3->wbuf.len, s->s3->wbuf.buf);
+                s->s3->wbuf.buf = NULL;
+                }
+        return 1;
+        }
+
+int ssl3_release_read_buffer(SSL *s)
+        {
+        if (s->s3->rbuf.buf != NULL)
+                {
+                freelist_insert(s->ctx, 1, s->s3->rbuf.len, s->s3->rbuf.buf);
+                s->s3->rbuf.buf = NULL;
+                }
+        return 1;
+        }
+