ZeroTierOne/java/jni/ZT1_jniutils.cpp
2015-04-24 17:58:59 -07:00

627 lines
16 KiB
C++

#include "ZT1_jniutils.h"
#include <string>
#include <assert.h>
#ifdef __cplusplus
extern "C" {
#endif
namespace
{
static jclass arrayListClass = NULL;
static jmethodID arrayList_constructor = NULL;
static jmethodID arrayList_add = NULL;
static jclass inetAddressClass = NULL;
static jmethodID inetAddress_getByAddress = NULL;
}
jobject createResultObject(JNIEnv *env, ZT1_ResultCode code)
{
// cache the class so we don't have to
// look it up every time we need to create a java
// ResultCode object
static jclass resultClass = NULL;
jobject resultObject = NULL;
if(resultClass == NULL)
{
resultClass = env->FindClass("com/zerotierone/sdk/ResultCode");
if(resultClass == NULL)
{
return NULL; // exception thrown
}
}
std::string fieldName;
switch(code)
{
case ZT1_RESULT_OK:
fieldName = "ZT1_RESULT_OK";
break;
case ZT1_RESULT_FATAL_ERROR_OUT_OF_MEMORY:
fieldName = "ZT1_RESULT_FATAL_ERROR_OUT_OF_MEMORY";
break;
case ZT1_RESULT_FATAL_ERROR_DATA_STORE_FAILED:
fieldName = "ZT1_RESULT_FATAL_ERROR_DATA_STORE_FAILED";
break;
case ZT1_RESULT_ERROR_NETWORK_NOT_FOUND:
fieldName = "ZT1_RESULT_ERROR_NETWORK_NOT_FOUND";
break;
case ZT1_RESULT_FATAL_ERROR_INTERNAL:
default:
fieldName = "ZT1_RESULT_FATAL_ERROR_INTERNAL";
break;
}
jfieldID enumField = env->GetStaticFieldID(resultClass, fieldName.c_str(), "Lcom/zerotierone/sdk/ResultCode;");
resultObject = env->GetStaticObjectField(resultClass, enumField);
return resultObject;
}
jobject createVirtualNetworkStatus(JNIEnv *env, ZT1_VirtualNetworkStatus status)
{
static jclass statusClass = NULL;
jobject statusObject = NULL;
if(statusClass == NULL)
{
statusClass = env->FindClass("com/zerotierone/sdk/VirtualNetworkStatus");
if(statusClass == NULL)
{
return NULL; // exception thrown
}
}
std::string fieldName;
switch(status)
{
case ZT1_NETWORK_STATUS_REQUESTING_CONFIGURATION:
fieldName = "NETWORK_STATUS_REQUESTING_CONFIGURATION";
break;
case ZT1_NETWORK_STATUS_OK:
fieldName = "NETWORK_STATUS_OK";
break;
case ZT1_NETWORK_STATUS_ACCESS_DENIED:
fieldName = "NETWORK_STATUS_ACCESS_DENIED";
break;
case ZT1_NETWORK_STATUS_NOT_FOUND:
fieldName = "NETWORK_STATUS_NOT_FOUND";
break;
case ZT1_NETWORK_STATUS_PORT_ERROR:
fieldName = "NETWORK_STATUS_PORT_ERROR";
break;
case ZT1_NETWORK_STATUS_CLIENT_TOO_OLD:
fieldName = "NETWORK_STATUS_CLIENT_TOO_OLD";
break;
}
jfieldID enumField = env->GetStaticFieldID(statusClass, fieldName.c_str(), "Lcom/zerotierone/sdk/VirtualNetworkStatus;");
statusObject = env->GetStaticObjectField(statusClass, enumField);
return statusObject;
}
jobject createEvent(JNIEnv *env, ZT1_Event event)
{
static jclass eventClass = NULL;
jobject eventObject = NULL;
if(eventClass == NULL)
{
eventClass = env->FindClass("com/zerotierone/sdk/Event");
if(eventClass == NULL)
{
return NULL;
}
}
std::string fieldName;
switch(event)
{
case ZT1_EVENT_UP:
fieldName = "EVENT_UP";
break;
case ZT1_EVENT_OFFLINE:
fieldName = "EVENT_OFFLINE";
break;
case ZT1_EVENT_DOWN:
fieldName = "EVENT_DOWN";
break;
case ZT1_EVENT_FATAL_ERROR_IDENTITY_COLLISION:
fieldName = "EVENT_FATAL_ERROR_IDENTITY_COLLISION";
break;
case ZT1_EVENT_AUTHENTICATION_FAILURE:
fieldName = "EVENT_AUTHENTICATION_FAILURE";
break;
case ZT1_EVENT_INVALID_PACKET:
fieldName = "EVENT_INVALID_PACKET";
break;
case ZT1_EVENT_TRACE:
fieldName = "EVENT_TRACE";
break;
}
jfieldID enumField = env->GetStaticFieldID(eventClass, fieldName.c_str(), "Lcom/zerotierone/sdk/Event;");
eventObject = env->GetStaticObjectField(eventClass, enumField);
return eventObject;
}
jobject createPeerRole(JNIEnv *env, ZT1_PeerRole role)
{
static jclass peerRoleClass = NULL;
jobject peerRoleObject = NULL;
if(peerRoleClass == NULL)
{
peerRoleClass = env->FindClass("com/zerotierone/sdk/PeerRole");
if(peerRoleClass == NULL)
{
return NULL;
}
}
std::string fieldName;
switch(role)
{
case ZT1_PEER_ROLE_LEAF:
fieldName = "PEER_ROLE_LEAF";
break;
case ZT1_PEER_ROLE_HUB:
fieldName = "PEER_ROLE_HUB";
break;
case ZT1_PEER_ROLE_SUPERNODE:
fieldName = "PEER_ROLE_SUPERNODE";
break;
}
jfieldID enumField = env->GetStaticFieldID(peerRoleClass, fieldName.c_str(), "Lcom/zerotierone/sdk/PeerRole;");
peerRoleObject = env->GetStaticObjectField(peerRoleClass, enumField);
return peerRoleObject;
}
jobject createVirtualNetworkType(JNIEnv *env, ZT1_VirtualNetworkType type)
{
static jclass vntypeClass = NULL;
jobject vntypeObject = NULL;
if(vntypeClass == NULL)
{
vntypeClass = env->FindClass("com/zerotierone/sdk/VirtualNetworkType");
if(vntypeClass == NULL)
{
return NULL;
}
}
std::string fieldName;
switch(type)
{
case ZT1_NETWORK_TYPE_PRIVATE:
fieldName = "NETWORK_TYPE_PRIVATE";
break;
case ZT1_NETWORK_TYPE_PUBLIC:
fieldName = "NETWORK_TYPE_PUBLIC";
break;
}
jfieldID enumField = env->GetStaticFieldID(vntypeClass, fieldName.c_str(), "Lcom/zerotierone/sdk/VirtyalNetworkType;");
vntypeObject = env->GetStaticObjectField(vntypeClass, enumField);
return vntypeObject;
}
jobject newArrayList(JNIEnv *env)
{
if(arrayListClass == NULL)
{
arrayListClass = env->FindClass("java/util/ArrayList");
if(arrayListClass == NULL)
{
return NULL;
}
}
if(arrayList_constructor == NULL)
{
arrayList_constructor = env->GetMethodID(
arrayListClass, "<init>", "()V");
if(arrayList_constructor == NULL)
{
return NULL;
}
}
jobject arrayListObj = env->NewObject(arrayListClass, arrayList_constructor);
return arrayListObj;
}
bool appendItemToArrayList(JNIEnv *env, jobject array, jobject object)
{
assert(array != NULL);
assert(object != NULL);
if(arrayList_add == NULL)
{
arrayList_add = env->GetMethodID(arrayListClass, "add", "(Ljava.lang.Object;)Z");
if(arrayList_add == NULL)
{
return false;
}
}
return env->CallBooleanMethod(array, arrayList_add, object);
}
jobject newInetAddress(JNIEnv *env, const sockaddr_storage &addr)
{
if(inetAddressClass == NULL)
{
inetAddressClass = env->FindClass("java/net/InetAddress");
if(inetAddressClass == NULL)
{
return NULL;
}
}
if(inetAddress_getByAddress == NULL)
{
inetAddress_getByAddress = env->GetStaticMethodID(
inetAddressClass, "getByAddress", "([B)Ljava/net/InetAddress;");
if(inetAddress_getByAddress == NULL)
{
return NULL;
}
}
jobject inetAddressObj = NULL;
switch(addr.ss_family)
{
case AF_INET6:
{
sockaddr_in6 *ipv6 = (sockaddr_in6*)&addr;
jbyteArray buff = env->NewByteArray(16);
if(buff == NULL)
{
return NULL;
}
env->SetByteArrayRegion(buff, 0, 16, (jbyte*)ipv6->sin6_addr.s6_addr);
inetAddressObj = env->CallStaticObjectMethod(
inetAddressClass, inetAddress_getByAddress, buff);
}
break;
case AF_INET:
{
sockaddr_in *ipv4 = (sockaddr_in*)&addr;
jbyteArray buff = env->NewByteArray(4);
if(buff == NULL)
{
return NULL;
}
env->SetByteArrayRegion(buff, 0, 4, (jbyte*)&ipv4->sin_addr);
inetAddressObj = env->CallStaticObjectMethod(
inetAddressClass, inetAddress_getByAddress, buff);
}
break;
}
return inetAddressObj;
}
jobject newMulticastGroup(JNIEnv *env, const ZT1_MulticastGroup &mc)
{
static jclass multicastGroupClass = NULL;
static jmethodID multicastGroup_constructor = NULL;
static jfieldID macField = NULL;
static jfieldID adiField = NULL;
if(multicastGroupClass == NULL)
{
multicastGroupClass = env->FindClass("com/zerotierone/sdk/MulticastGroup");
if(multicastGroupClass == NULL)
{
return NULL;
}
}
if(multicastGroup_constructor == NULL)
{
multicastGroup_constructor = env->GetMethodID(
multicastGroupClass, "<init>", "()V");
if(multicastGroup_constructor == NULL)
{
return NULL;
}
}
jobject multicastGroupObj = env->NewObject(multicastGroupClass, multicastGroup_constructor);
if(multicastGroupObj == NULL)
{
return NULL;
}
if(macField == NULL)
{
macField = env->GetFieldID(multicastGroupClass, "mac", "J");
if(macField == NULL)
{
return NULL;
}
}
if(adiField == NULL)
{
adiField = env->GetFieldID(multicastGroupClass, "adi", "J");
if(adiField == NULL)
{
return NULL;
}
}
env->SetLongField(multicastGroupObj, macField, mc.mac);
env->SetLongField(multicastGroupObj, adiField, mc.adi);
return multicastGroupObj;
}
jobject newPeerPhysicalPath(JNIEnv *env, const ZT1_PeerPhysicalPath &ppp)
{
static jclass pppClass = NULL;
static jfieldID addressField = NULL;
static jfieldID lastSendField = NULL;
static jfieldID lastReceiveField = NULL;
static jfieldID fixedField = NULL;
static jfieldID activeField = NULL;
static jfieldID preferredField = NULL;
static jmethodID ppp_constructor = NULL;
if(pppClass == NULL)
{
pppClass = env->FindClass("com/zerotierone/sdk/PeerPhysicalPath");
if(pppClass == NULL)
{
return NULL;
}
}
if(addressField == NULL)
{
addressField = env->GetFieldID(pppClass, "address", "Ljava/net/InetAddress;");
if(addressField == NULL)
{
return NULL;
}
}
if(lastSendField == NULL)
{
lastSendField = env->GetFieldID(pppClass, "lastSend", "J");
if(lastSendField == NULL)
{
return NULL;
}
}
if(lastReceiveField == NULL)
{
lastReceiveField = env->GetFieldID(pppClass, "lastReceive", "J");
if(lastReceiveField == NULL)
{
return NULL;
}
}
if(fixedField == NULL)
{
fixedField = env->GetFieldID(pppClass, "fixed", "Z");
if(fixedField == NULL)
{
return NULL;
}
}
if(activeField == NULL)
{
activeField = env->GetFieldID(pppClass, "active", "Z");
if(activeField == NULL)
{
return NULL;
}
}
if(preferredField == NULL)
{
preferredField = env->GetFieldID(pppClass, "preferred", "Z");
if(preferredField == NULL)
{
return NULL;
}
}
if(ppp_constructor == NULL)
{
ppp_constructor = env->GetMethodID(pppClass, "<init>", "()V");
if(ppp_constructor == NULL)
{
return NULL;
}
}
jobject pppObject = env->NewObject(pppClass, ppp_constructor);
if(pppObject == NULL)
{
return NULL; // out of memory
}
jobject addressObject = newInetAddress(env, ppp.address);
env->SetObjectField(pppClass, addressField, addressObject);
env->SetLongField(pppClass, lastSendField, ppp.lastSend);
env->SetLongField(pppClass, lastReceiveField, ppp.lastReceive);
env->SetBooleanField(pppClass, fixedField, ppp.fixed);
env->SetBooleanField(pppClass, activeField, ppp.active);
env->SetBooleanField(pppClass, preferredField, ppp.preferred);
return pppObject;
}
jobject newPeer(JNIEnv *env, const ZT1_Peer &peer)
{
static jclass peerClass = NULL;
static jfieldID addressField = NULL;
static jfieldID lastUnicastFrameField = NULL;
static jfieldID lastMulticastFrameField = NULL;
static jfieldID versionMajorField = NULL;
static jfieldID versionMinorField = NULL;
static jfieldID versionRevField = NULL;
static jfieldID latencyField = NULL;
static jfieldID roleField = NULL;
static jfieldID pathsField = NULL;
static jmethodID peer_constructor = NULL;
if(peerClass == NULL)
{
peerClass = env->FindClass("com/zerotierone/sdk/Peer");
if(peerClass == NULL)
{
return NULL;
}
}
if(addressField == NULL)
{
addressField = env->GetFieldID(peerClass, "address", "J");
if(addressField == NULL)
{
return NULL;
}
}
if(lastUnicastFrameField == NULL)
{
lastUnicastFrameField = env->GetFieldID(peerClass, "lastUnicastFrame", "J");
if(lastUnicastFrameField == NULL)
{
return NULL;
}
}
if(lastMulticastFrameField == NULL)
{
lastMulticastFrameField = env->GetFieldID(peerClass, "lastMulticastFrame", "J");
if(lastMulticastFrameField == NULL)
{
return NULL;
}
}
if(versionMajorField == NULL)
{
versionMajorField = env->GetFieldID(peerClass, "versionMajor", "I");
if(versionMajorField == NULL)
{
return NULL;
}
}
if(versionMinorField == NULL)
{
versionMinorField = env->GetFieldID(peerClass, "versionMinor", "I");
if(versionMinorField == NULL)
{
return NULL;
}
}
if(versionRevField == NULL)
{
versionRevField = env->GetFieldID(peerClass, "versionRev", "I");
if(versionRevField == NULL)
{
return NULL;
}
}
if(latencyField == NULL)
{
latencyField = env->GetFieldID(peerClass, "latency", "I");
if(latencyField == NULL)
{
return NULL;
}
}
if(roleField == NULL)
{
roleField = env->GetFieldID(peerClass, "role", "Lcom/zerotierone/sdk/PeerRole;");
if(roleField == NULL)
{
return NULL;
}
}
if(pathsField == NULL)
{
pathsField = env->GetFieldID(peerClass, "paths", "Ljava.util.ArrayList;");
if(pathsField == NULL)
{
return NULL;
}
}
if(peer_constructor == NULL)
{
peer_constructor = env->GetMethodID(peerClass, "<init>", "()V");
if(peer_constructor == NULL)
{
return NULL;
}
}
jobject peerObject = env->NewObject(peerClass, peer_constructor);
if(peerObject == NULL)
{
return NULL; // out of memory
}
env->SetLongField(peerClass, addressField, (jlong)peer.address);
env->SetLongField(peerClass, lastUnicastFrameField, (jlong)peer.lastUnicastFrame);
env->SetLongField(peerClass, lastMulticastFrameField, (jlong)peer.lastMulticastFrame);
env->SetIntField(peerClass, versionMajorField, peer.versionMajor);
env->SetIntField(peerClass, versionMinorField, peer.versionMinor);
env->SetIntField(peerClass, versionRevField, peer.versionRev);
env->SetIntField(peerClass, latencyField, peer.latency);
env->SetObjectField(peerClass, roleField, createPeerRole(env, peer.role));
jobject arrayObject = newArrayList(env);
for(unsigned int i = 0; i < peer.pathCount; ++i)
{
jobject path = newPeerPhysicalPath(env, peer.paths[i]);
appendItemToArrayList(env, arrayObject, path);
}
env->SetObjectField(peerClass, pathsField, arrayObject);
return peerObject;
}
#ifdef __cplusplus
}
#endif