Don't allow read/write after fatal error

[oweals/openssl.git] / ssl / d1_clnt.c

diff --git a/ssl/d1_clnt.c b/ssl/d1_clnt.c
index feeaf6d0656f5d0868121852d42b5037b8823111..76451a346d86b4d6cc135438e15d89c95fc279b2 100644 (file)
--- a/ssl/d1_clnt.c
+++ b/ssl/d1_clnt.c
@@ -133,12 +133,14 @@ static int dtls1_get_hello_verify(SSL *s);
 
 static const SSL_METHOD *dtls1_get_client_method(int ver)
 {
-    if (ver == DTLS1_VERSION || ver == DTLS1_BAD_VER)
-        return (DTLSv1_client_method());
+    if (ver == DTLS_ANY_VERSION)
+        return DTLS_client_method();
+    else if (ver == DTLS1_VERSION || ver == DTLS1_BAD_VER)
+        return DTLSv1_client_method();
     else if (ver == DTLS1_2_VERSION)
-        return (DTLSv1_2_client_method());
+        return DTLSv1_2_client_method();
     else
-        return (NULL);
+        return NULL;
 }
 
 IMPLEMENT_dtls1_meth_func(DTLS1_VERSION,
@@ -147,13 +149,13 @@ IMPLEMENT_dtls1_meth_func(DTLS1_VERSION,
                           dtls1_connect,
                           dtls1_get_client_method, DTLSv1_enc_data)
 
-    IMPLEMENT_dtls1_meth_func(DTLS1_2_VERSION,
+IMPLEMENT_dtls1_meth_func(DTLS1_2_VERSION,
                           DTLSv1_2_client_method,
                           ssl_undefined_function,
                           dtls1_connect,
                           dtls1_get_client_method, DTLSv1_2_enc_data)
 
-    IMPLEMENT_dtls1_meth_func(DTLS_ANY_VERSION,
+IMPLEMENT_dtls1_meth_func(DTLS_ANY_VERSION,
                           DTLS_client_method,
                           ssl_undefined_function,
                           dtls1_connect,
@@ -315,13 +317,17 @@ int dtls1_connect(SSL *s)
 #endif
 
         case SSL3_ST_CW_CLNT_HELLO_A:
-        case SSL3_ST_CW_CLNT_HELLO_B:
-
             s->shutdown = 0;
 
             /* every DTLS ClientHello resets Finished MAC */
-            ssl3_init_finished_mac(s);
+            if (!ssl3_init_finished_mac(s)) {
+                ret = -1;
+                s->state = SSL_ST_ERR;
+                goto end;
+            }
 
+            /* fall thru */
+        case SSL3_ST_CW_CLNT_HELLO_B:
             dtls1_start_timer(s);
             ret = ssl3_client_hello(s);
             if (ret <= 0)
@@ -768,6 +774,7 @@ int dtls1_connect(SSL *s)
             /* done with handshaking */
             s->d1->handshake_read_seq = 0;
             s->d1->next_handshake_write_seq = 0;
+            dtls1_clear_received_buffer(s);
             goto end;
             /* break; */