#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/VirtualNetworkType;"); vntypeObject = env->GetStaticObjectField(vntypeClass, enumField); return vntypeObject; } jobject createVirtualNetworkConfigOperation(JNIEnv *env, ZT1_VirtualNetworkConfigOperation op) { static jclass vnetConfigOpClass = NULL; jobject vnetConfigOpObject = NULL; if(vnetConfigOpClass == NULL) { vnetConfigOpClass = env->FindClass("com/zerotierone/sdk/VirtualNetworkConfigOperation"); if(vnetConfigOpClass == NULL) { return NULL; } } std::string fieldName; switch(op) { case ZT1_VIRTUAL_NETWORK_CONFIG_OPERATION_UP: fieldName = "VIRTUAL_NETWORK_CONFIG_OPERATION_UP"; break; case ZT1_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE: fieldName = "VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE"; break; case ZT1_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN: fieldName = "VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN"; break; case ZT1_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY: fieldName = "VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY"; break; } jfieldID enumField = env->GetStaticFieldID(vnetConfigOpClass, fieldName.c_str(), "Lcom/zerotierone/sdk/VirtualNetworkConfigOperation;"); vnetConfigOpObject = env->GetStaticObjectField(vnetConfigOpClass, enumField); return vnetConfigOpObject; } 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; } jobject newNetworkConfig(JNIEnv *env, const ZT1_VirtualNetworkConfig &vnetConfig) { static jclass vnetConfigClass = NULL; static jmethodID vnetConfig_constructor = NULL; static jfieldID nwidField = NULL; static jfieldID macField = NULL; static jfieldID nameField = NULL; static jfieldID statusField = NULL; static jfieldID typeField = NULL; static jfieldID mtuField = NULL; static jfieldID dhcpField = NULL; static jfieldID bridgeField = NULL; static jfieldID broadcastEnabledField = NULL; static jfieldID portErrorField = NULL; static jfieldID enabledField = NULL; static jfieldID netconfRevisionField = NULL; static jfieldID multicastSubscriptionsField = NULL; static jfieldID assignedAddressesField = NULL; if(vnetConfigClass == NULL) { vnetConfigClass = env->FindClass("com/zerotierone/sdk/VirtualNetworkConfig"); if(vnetConfigClass == NULL) { return NULL; } } if(vnetConfig_constructor == NULL) { jmethodID vnetConfig_constructor = env->GetMethodID( vnetConfigClass, "<init>", "()V"); if(vnetConfig_constructor == NULL) { return NULL; } } jobject vnetConfigObj = env->NewObject(vnetConfigClass, vnetConfig_constructor); if(vnetConfigObj == NULL) { return NULL; } if(nwidField == NULL) { nwidField = env->GetFieldID(vnetConfigClass, "nwid", "J"); if(nwidField == NULL) { return NULL; } } if(macField == NULL) { macField = env->GetFieldID(vnetConfigClass, "mac", "J"); if(macField == NULL) { return NULL; } } if(nameField == NULL) { nameField = env->GetFieldID(vnetConfigClass, "name", "Ljava/lang/String;"); if(nameField == NULL) { return NULL; } } if(statusField == NULL) { statusField = env->GetFieldID(vnetConfigClass, "status", "Lcom/zerotierone/sdk/VirtualNetworStatus;"); if(statusField == NULL) { return NULL; } } if(typeField == NULL) { typeField = env->GetFieldID(vnetConfigClass, "type", "Lcom/zerotierone/sdk/VirtualNetworkType;"); if(typeField == NULL) { return NULL; } } if(mtuField == NULL) { mtuField = env->GetFieldID(vnetConfigClass, "mtu", "I"); if(mtuField == NULL) { return NULL; } } if(dhcpField == NULL) { dhcpField = env->GetFieldID(vnetConfigClass, "dhcp", "Z"); if(dhcpField == NULL) { return NULL; } } if(bridgeField == NULL) { bridgeField = env->GetFieldID(vnetConfigClass, "bridge", "Z"); if(bridgeField == NULL) { return NULL; } } if(broadcastEnabledField == NULL) { broadcastEnabledField = env->GetFieldID(vnetConfigClass, "broadcastEnabled", "Z"); if(broadcastEnabledField == NULL) { return NULL; } } if(portErrorField == NULL) { portErrorField == env->GetFieldID(vnetConfigClass, "portError", "Z"); if(portErrorField == NULL) { return NULL; } } if(enabledField == NULL) { enabledField = env->GetFieldID(vnetConfigClass, "enabled", "Z"); if(enabledField == NULL) { return NULL; } } if(netconfRevisionField == NULL) { netconfRevisionField = env->GetFieldID(vnetConfigClass, "netconfRevision", "J"); if(netconfRevisionField == NULL) { return NULL; } } if(multicastSubscriptionsField == NULL) { multicastSubscriptionsField = env->GetFieldID(vnetConfigClass, "multicastSubscriptions", "Ljava/util/ArrayList;"); if(multicastSubscriptionsField == NULL) { return NULL; } } if(assignedAddressesField == NULL) { assignedAddressesField = env->GetFieldID(vnetConfigClass, "assignedAddresses", "Ljava/util/ArrayList;"); if(assignedAddressesField == NULL) { return NULL; } } env->SetLongField(vnetConfigObj, nwidField, vnetConfig.nwid); env->SetLongField(vnetConfigObj, macField, vnetConfig.mac); jstring nameStr = env->NewStringUTF(vnetConfig.name); if(nameStr == NULL) { return NULL; // out of memory } env->SetObjectField(vnetConfigObj, nameField, nameStr); jobject statusObject = createVirtualNetworkStatus(env, vnetConfig.status); if(statusObject == NULL) { return NULL; } env->SetObjectField(vnetConfigObj, statusField, statusObject); jobject typeObject = createVirtualNetworkType(env, vnetConfig.type); if(typeObject == NULL) { return NULL; } env->SetObjectField(vnetConfigObj, typeField, typeObject); env->SetIntField(vnetConfigObj, mtuField, vnetConfig.mtu); env->SetBooleanField(vnetConfigObj, dhcpField, vnetConfig.dhcp); env->SetBooleanField(vnetConfigObj, bridgeField, vnetConfig.bridge); env->SetBooleanField(vnetConfigObj, broadcastEnabledField, vnetConfig.broadcastEnabled); env->SetBooleanField(vnetConfigObj, portErrorField, vnetConfig.portError); jobject mcastSubsArrayObj = newArrayList(env); for(unsigned int i = 0; i < vnetConfig.multicastSubscriptionCount; ++i) { jobject mcastObj = newMulticastGroup(env, vnetConfig.multicastSubscriptions[i]); appendItemToArrayList(env, mcastSubsArrayObj, mcastObj); } env->SetObjectField(vnetConfigObj, multicastSubscriptionsField, mcastSubsArrayObj); jobject assignedAddrArrayObj = newArrayList(env); for(unsigned int i = 0; i < vnetConfig.assignedAddressCount; ++i) { jobject inetAddrObj = newInetAddress(env, vnetConfig.assignedAddresses[i]); appendItemToArrayList(env, assignedAddrArrayObj, inetAddrObj); } env->SetObjectField(vnetConfigObj, assignedAddressesField, assignedAddrArrayObj); return vnetConfigObj; } jobject newVersion(JNIEnv *env, int major, int minor, int rev, long featureFlags) { // create a com.zerotierone.sdk.Version object static jclass versionClass = NULL; static jmethodID versionConstructor = NULL; if(versionClass == NULL) { versionClass = env->FindClass("com/zerotierone/sdk/Version"); if(versionClass == NULL) { return NULL; } } if(versionConstructor == NULL) { versionConstructor = env->GetMethodID( versionClass, "<init>", "()V"); if(versionConstructor == NULL) { return NULL; } } jobject versionObj = env->NewObject(versionClass, versionConstructor); if(versionObj == NULL) { return NULL; } // copy data to Version object static jfieldID majorField = NULL; static jfieldID minorField = NULL; static jfieldID revisionField = NULL; static jfieldID featureFlagsField = NULL; if(majorField == NULL) { majorField = env->GetFieldID(versionClass, "major", "I"); if(majorField = NULL) { return NULL; } } if(minorField == NULL) { minorField = env->GetFieldID(versionClass, "minor", "I"); if(minorField == NULL) { return NULL; } } if(revisionField == NULL) { revisionField = env->GetFieldID(versionClass, "revision", "I"); if(revisionField == NULL) { return NULL; } } if(featureFlagsField == NULL) { featureFlagsField = env->GetFieldID(versionClass, "featureFlags", "J"); if(featureFlagsField == NULL) { return NULL; } } env->SetIntField(versionObj, majorField, (jint)major); env->SetIntField(versionObj, minorField, (jint)minor); env->SetIntField(versionObj, revisionField, (jint)rev); env->SetLongField(versionObj, featureFlagsField, (jlong)featureFlags); } #ifdef __cplusplus } #endif