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/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "jdk_net_LinuxRdmaSocketOptions.h"
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#include "rdma_util_md.h"
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#include "Rsocket.h"
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#include "jni_util.h"
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void throwByNameWithLastError(JNIEnv *env, const char *name,
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const char *defaultDetail) {
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char defaultMsg[255];
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sprintf(defaultMsg, "errno: %d, %s", errno, defaultDetail);
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JNU_ThrowByNameWithLastError(env, name, defaultMsg);
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}
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JNIEXPORT void JNICALL
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Java_jdk_net_LinuxRdmaSocketOptions_init(JNIEnv *env, jclass c) {
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loadRdmaFuncs(env);
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}
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JNIEXPORT void JNICALL
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Java_jdk_net_LinuxRdmaSocketOptions_setSockOpt(JNIEnv *env,
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jobject unused, jint fd, jint opt, jint value) {
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int optname;
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int level = SOL_RDMA;
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RDMA_MapSocketOption(opt, &level, &optname);
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int len = sizeof(value);
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int rv = RDMA_SetSockOpt(fd, level, optname, (char*)&value, len);
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if (rv < 0) {
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if (errno == ENOPROTOOPT) {
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JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
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"unsupported RDMA socket option");
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} else if (errno == EACCES || errno == EPERM) {
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JNU_ThrowByName(env, "java/net/SocketException", "Permission denied");
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} else {
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throwByNameWithLastError(env, "java/net/SocketException",
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"set RDMA option failed");
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}
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}
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}
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JNIEXPORT jint JNICALL
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Java_jdk_net_LinuxRdmaSocketOptions_getSockOpt(JNIEnv *env,
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jobject unused, jint fd, jint opt) {
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int optname;
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int level = SOL_RDMA;
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RDMA_MapSocketOption(opt, &level, &optname);
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int value;
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int len = sizeof(value);
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int rv = RDMA_GetSockOpt(fd, level, optname, (char*)&value, &len);
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if (rv < 0) {
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if (errno == ENOPROTOOPT) {
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JNU_ThrowByName(env, "java/lang/UnsupportedOperationException",
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"unsupported RDMA socket option");
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} else if (errno == EACCES || errno == EPERM) {
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JNU_ThrowByName(env, "java/net/SocketException", "Permission denied");
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} else {
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throwByNameWithLastError(env, "java/net/SocketException",
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"get RDMA option failed");
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}
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return -1;
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}
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return value;
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}
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JNIEXPORT jboolean JNICALL
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Java_jdk_net_LinuxRdmaSocketOptions_rdmaSocketSupported(JNIEnv *env,
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jobject unused) {
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int rv, s;
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s = rs_socket(PF_INET, SOCK_STREAM, 0);
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if (s < 0) {
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return JNI_FALSE;
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}
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rs_close(s);
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return JNI_TRUE;
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}
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