1 files changed, 211 insertions, 0 deletions

diff --git a/src/lib/libssl/d1_lib.c b/src/lib/libssl/d1_lib.c
new file mode 100644
index 0000000000..3568e97a87
--- /dev/null
+++ b/src/lib/libssl/d1_lib.c
@@ -0,0 +1,211 @@
+/* ssl/d1_lib.c */
+/* 
+ * DTLS implementation written by Nagendra Modadugu
+ * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.  
+ */
+/* ====================================================================
+ * Copyright (c) 1999-2005 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 <stdio.h>
+#include <openssl/objects.h>
+#include "ssl_locl.h"
+
+const char dtls1_version_str[]="DTLSv1" OPENSSL_VERSION_PTEXT;
+
+SSL3_ENC_METHOD DTLSv1_enc_data={
+    dtls1_enc,
+        tls1_mac,
+        tls1_setup_key_block,
+        tls1_generate_master_secret,
+        tls1_change_cipher_state,
+        tls1_final_finish_mac,
+        TLS1_FINISH_MAC_LENGTH,
+        tls1_cert_verify_mac,
+        TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
+        TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
+        tls1_alert_code,
+        };
+
+long dtls1_default_timeout(void)
+        {
+        /* 2 hours, the 24 hours mentioned in the DTLSv1 spec
+         * is way too long for http, the cache would over fill */
+        return(60*60*2);
+        }
+
+IMPLEMENT_dtls1_meth_func(dtlsv1_base_method,
+                        ssl_undefined_function,
+                        ssl_undefined_function,
+                        ssl_bad_method)
+
+int dtls1_new(SSL *s)
+        {
+        DTLS1_STATE *d1;
+
+        if (!ssl3_new(s)) return(0);
+        if ((d1=OPENSSL_malloc(sizeof *d1)) == NULL) return (0);
+        memset(d1,0, sizeof *d1);
+
+        /* d1->handshake_epoch=0; */
+#if defined(OPENSSL_SYS_VMS) || defined(VMS_TEST)
+        d1->bitmap.length=64;
+#else
+        d1->bitmap.length=sizeof(d1->bitmap.map) * 8;
+#endif
+        pq_64bit_init(&(d1->bitmap.map));
+        pq_64bit_init(&(d1->bitmap.max_seq_num));
+        
+        d1->next_bitmap.length = d1->bitmap.length;
+        pq_64bit_init(&(d1->next_bitmap.map));
+        pq_64bit_init(&(d1->next_bitmap.max_seq_num));
+
+        d1->unprocessed_rcds.q=pqueue_new();
+        d1->processed_rcds.q=pqueue_new();
+        d1->buffered_messages = pqueue_new();
+        d1->sent_messages=pqueue_new();
+
+        if ( s->server)
+                {
+                d1->cookie_len = sizeof(s->d1->cookie);
+                }
+
+        if( ! d1->unprocessed_rcds.q || ! d1->processed_rcds.q 
+        || ! d1->buffered_messages || ! d1->sent_messages)
+                {
+        if ( d1->unprocessed_rcds.q) pqueue_free(d1->unprocessed_rcds.q);
+        if ( d1->processed_rcds.q) pqueue_free(d1->processed_rcds.q);
+        if ( d1->buffered_messages) pqueue_free(d1->buffered_messages);
+                if ( d1->sent_messages) pqueue_free(d1->sent_messages);
+                OPENSSL_free(d1);
+                return (0);
+                }
+
+        s->d1=d1;
+        s->method->ssl_clear(s);
+        return(1);
+        }
+
+void dtls1_free(SSL *s)
+        {
+    pitem *item = NULL;
+    hm_fragment *frag = NULL;
+
+        ssl3_free(s);
+
+    while( (item = pqueue_pop(s->d1->unprocessed_rcds.q)) != NULL)
+        {
+        OPENSSL_free(item->data);
+        pitem_free(item);
+        }
+    pqueue_free(s->d1->unprocessed_rcds.q);
+
+    while( (item = pqueue_pop(s->d1->processed_rcds.q)) != NULL)
+        {
+        OPENSSL_free(item->data);
+        pitem_free(item);
+        }
+    pqueue_free(s->d1->processed_rcds.q);
+
+    while( (item = pqueue_pop(s->d1->buffered_messages)) != NULL)
+        {
+        frag = (hm_fragment *)item->data;
+        OPENSSL_free(frag->fragment);
+        OPENSSL_free(frag);
+        pitem_free(item);
+        }
+    pqueue_free(s->d1->buffered_messages);
+
+    while ( (item = pqueue_pop(s->d1->sent_messages)) != NULL)
+        {
+        frag = (hm_fragment *)item->data;
+        OPENSSL_free(frag->fragment);
+        OPENSSL_free(frag);
+        pitem_free(item);
+        }
+        pqueue_free(s->d1->sent_messages);
+
+        pq_64bit_free(&(s->d1->bitmap.map));
+        pq_64bit_free(&(s->d1->bitmap.max_seq_num));
+
+        pq_64bit_free(&(s->d1->next_bitmap.map));
+        pq_64bit_free(&(s->d1->next_bitmap.max_seq_num));
+
+        OPENSSL_free(s->d1);
+        }
+
+void dtls1_clear(SSL *s)
+        {
+        ssl3_clear(s);
+        s->version=DTLS1_VERSION;
+        }
+
+/*
+ * As it's impossible to use stream ciphers in "datagram" mode, this
+ * simple filter is designed to disengage them in DTLS. Unfortunately
+ * there is no universal way to identify stream SSL_CIPHER, so we have
+ * to explicitly list their SSL_* codes. Currently RC4 is the only one
+ * available, but if new ones emerge, they will have to be added...
+ */
+SSL_CIPHER *dtls1_get_cipher(unsigned int u)
+        {
+        SSL_CIPHER *ciph = ssl3_get_cipher(u);
+
+        if (ciph != NULL)
+                {
+                if ((ciph->algorithms&SSL_ENC_MASK) == SSL_RC4)
+                        return NULL;
+                }
+
+        return ciph;
+        }