| /* |
| * Copyright (c) 2014, 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 "SolarisSocketOptions.h" |
| |
| static jfieldID sf_priority; |
| static jfieldID sf_bandwidth; |
| |
| static int initialized = 0; |
| |
| /* |
| * Class: jdk_net_SolarisSocketOptions |
| * Method: init |
| * Signature: ()V |
| */ |
| JNIEXPORT void JNICALL Java_jdk_net_SolarisSocketOptions_init |
| (JNIEnv *env, jclass unused) |
| { |
| if (!initialized) { |
| jclass c = (*env)->FindClass(env, "jdk/net/SocketFlow"); |
| CHECK_NULL(c); |
| sf_priority = (*env)->GetFieldID(env, c, "priority", "I"); |
| CHECK_NULL(sf_priority); |
| sf_bandwidth = (*env)->GetFieldID(env, c, "bandwidth", "J"); |
| CHECK_NULL(sf_bandwidth); |
| initialized = 1; |
| } |
| } |
| |
| /** Return the Status value. */ |
| static jint toStatus(int errval) |
| { |
| switch (errval) { |
| case 0: return jdk_net_SocketFlow_OK_VALUE; |
| case EPERM: return jdk_net_SocketFlow_NO_PERMISSION_VALUE; |
| case ENOTCONN: return jdk_net_SocketFlow_NOT_CONNECTED_VALUE; |
| case EOPNOTSUPP: return jdk_net_SocketFlow_NOT_SUPPORTED_VALUE; |
| case EALREADY: return jdk_net_SocketFlow_ALREADY_CREATED_VALUE; |
| case EINPROGRESS: return jdk_net_SocketFlow_IN_PROGRESS_VALUE; |
| default: return jdk_net_SocketFlow_OTHER_VALUE; |
| } |
| } |
| |
| void throwByNameWithLastError |
| (JNIEnv *env, const char *name, const char *defaultDetail) |
| { |
| char defaultMsg[255]; |
| sprintf(defaultMsg, "errno: %d, %s", errno, defaultDetail); |
| JNU_ThrowByNameWithLastError(env, name, defaultMsg); |
| } |
| |
| /* |
| * Class: jdk_net_SolarisSocketOptions |
| * Method: setFlowOption0 |
| * Signature: (IIJ)I |
| */ |
| JNIEXPORT jint JNICALL Java_jdk_net_SolarisSocketOptions_setFlowOption |
| (JNIEnv *env, jobject unused, jint fd, jint priority, jlong bandwidth) |
| { |
| int rv; |
| sock_flow_props_t props; |
| memset(&props, 0, sizeof(props)); |
| props.sfp_version = SOCK_FLOW_PROP_VERSION1; |
| |
| if (priority != jdk_net_SocketFlow_UNSET) { |
| props.sfp_mask |= SFP_PRIORITY; |
| props.sfp_priority = priority; |
| } |
| if (bandwidth > jdk_net_SocketFlow_UNSET) { |
| props.sfp_mask |= SFP_MAXBW; |
| props.sfp_maxbw = (uint64_t) bandwidth; |
| } |
| |
| rv = setsockopt(fd, SOL_SOCKET, SO_FLOW_SLA, &props, sizeof(props)); |
| |
| if (rv < 0) { |
| if (errno == ENOPROTOOPT) { |
| JNU_ThrowByName(env, "java/lang/UnsupportedOperationException", |
| "unsupported socket option"); |
| } else if (errno == EACCES || errno == EPERM) { |
| JNU_ThrowByName(env, "java/net/SocketException", "Permission denied"); |
| } else { |
| throwByNameWithLastError(env, "java/net/SocketException", |
| "set option SO_FLOW_SLA failed"); |
| } |
| return 0; |
| } |
| return toStatus(props.sfp_status); |
| } |
| |
| /* |
| * Class: jdk_net_SolarisSocketOptions |
| * Method: getFlowOption0 |
| * Signature: (ILjdk/net/SocketFlow;)I |
| */ |
| JNIEXPORT jint JNICALL Java_jdk_net_SolarisSocketOptions_getFlowOption |
| (JNIEnv *env, jobject unused, jint fd, jobject flow) |
| { |
| sock_flow_props_t props; |
| socklen_t sz = sizeof(props); |
| |
| int rv = getsockopt(fd, SOL_SOCKET, SO_FLOW_SLA, &props, &sz); |
| |
| if (rv < 0) { |
| if (errno == ENOPROTOOPT) { |
| JNU_ThrowByName(env, "java/lang/UnsupportedOperationException", |
| "unsupported socket option"); |
| } else if (errno == EACCES || errno == EPERM) { |
| JNU_ThrowByName(env, "java/net/SocketException", "Permission denied"); |
| } else { |
| throwByNameWithLastError(env, "java/net/SocketException", |
| "get option SO_FLOW_SLA failed"); |
| } |
| return -1; |
| } |
| /* first check status to see if flow exists */ |
| if (props.sfp_status == 0) { /* OK */ |
| /* can set the other fields now */ |
| if (props.sfp_mask & SFP_PRIORITY) { |
| (*env)->SetIntField(env, flow, sf_priority, props.sfp_priority); |
| } |
| if (props.sfp_mask & SFP_MAXBW) { |
| (*env)->SetLongField(env, flow, sf_bandwidth, |
| (jlong)props.sfp_maxbw); |
| } |
| } |
| return toStatus(props.sfp_status); |
| } |
| |
| JNIEXPORT jboolean JNICALL Java_jdk_net_SolarisSocketOptions_flowSupported |
| (JNIEnv *env, jobject unused) |
| { |
| /* Do a simple dummy call, and try to figure out from that */ |
| sock_flow_props_t props; |
| int rv, s; |
| |
| s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); |
| if (s < 0) { |
| return JNI_FALSE; |
| } |
| memset(&props, 0, sizeof(props)); |
| props.sfp_version = SOCK_FLOW_PROP_VERSION1; |
| props.sfp_mask |= SFP_PRIORITY; |
| props.sfp_priority = SFP_PRIO_NORMAL; |
| rv = setsockopt(s, SOL_SOCKET, SO_FLOW_SLA, &props, sizeof(props)); |
| if (rv != 0 && errno == ENOPROTOOPT) { |
| rv = JNI_FALSE; |
| } else { |
| rv = JNI_TRUE; |
| } |
| close(s); |
| return rv; |
| } |