--- /dev/null	2018-11-27 03:18:47.532777276 -0500
+++ new/src/jdk.net/linux/native/libextnet/Rsocket.c	2018-11-30 08:33:12.749539140 -0500
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <Rsocket.h>
+#include <dlfcn.h>
+#include "jni_util.h"
+
+static const char* nativeRdmaLib = "librdmacm.so.1";
+static jboolean funcs_loaded = JNI_FALSE;
+ 
+jboolean loadRdmaFuncs(JNIEnv* env) {
+    if (funcs_loaded)
+        return JNI_TRUE;
+
+    if (dlopen(nativeRdmaLib, RTLD_GLOBAL | RTLD_LAZY) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_socket = (rs_rsocket_func*)
+            dlsym(RTLD_DEFAULT, "rsocket")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_fcntl = (rs_rfcntl_func*)
+            dlsym(RTLD_DEFAULT, "rfcntl")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_listen = (rs_rlisten_func*)
+            dlsym(RTLD_DEFAULT, "rlisten")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_bind = (rs_rbind_func*)
+            dlsym(RTLD_DEFAULT, "rbind")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_connect = (rs_rconnect_func*)
+            dlsym(RTLD_DEFAULT, "rconnect")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_getsockname = (rs_rgetsockname_func*)
+            dlsym(RTLD_DEFAULT, "rgetsockname")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_getsockopt = (rs_rgetsockopt_func*)
+            dlsym(RTLD_DEFAULT, "rgetsockopt")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_setsockopt = (rs_rsetsockopt_func*)
+            dlsym(RTLD_DEFAULT, "rsetsockopt")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_shutdown = (rs_rshutdown_func*)
+            dlsym(RTLD_DEFAULT, "rshutdown")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_poll = (rs_rpoll_func*)
+            dlsym(RTLD_DEFAULT, "rpoll")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_send = (rs_rsend_func*)
+            dlsym(RTLD_DEFAULT, "rsend")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_accept = (rs_raccept_func*)
+            dlsym(RTLD_DEFAULT, "raccept")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_close = (rs_rclose_func*)
+            dlsym(RTLD_DEFAULT, "rclose")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_read = (rs_rread_func*)
+            dlsym(RTLD_DEFAULT, "rread")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_readv = (rs_rreadv_func*)
+            dlsym(RTLD_DEFAULT, "rreadv")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_write = (rs_rwrite_func*)
+            dlsym(RTLD_DEFAULT, "rwrite")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_writev = (rs_rwritev_func*)
+            dlsym(RTLD_DEFAULT, "rwritev")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_recv = (rs_rrecv_func*)
+            dlsym(RTLD_DEFAULT, "rrecv")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_recvfrom = (rs_rrecvfrom_func*)
+            dlsym(RTLD_DEFAULT, "rrecvfrom")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    if ((rs_sendto = (rs_rsendto_func*)
+            dlsym(RTLD_DEFAULT, "rsendto")) == NULL) {
+        JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
+              dlerror());
+        return JNI_FALSE;
+    }
+
+    funcs_loaded = JNI_TRUE;
+    return JNI_TRUE;
+}