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SDK_JNI

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This commit is contained in:
Joseph Henry
2017-09-29 17:05:21 -07:00
parent 6a5c73eec2
commit 0319f8a894
3 changed files with 288 additions and 4 deletions
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7
Makefile
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@@ -141,15 +141,14 @@ endif
# JNI (Java Native Interface)
ifeq ($(SDK_JNI), 1)
# jni.h
INCLUDES+=-I$(shell /usr/libexec/java_home)/include
LIBZT_INCLUDES+=-I$(shell /usr/libexec/java_home)/include
# jni_md.h
INCLUDES+=-I$(shell /usr/libexec/java_home)/include/$(SYSTEM)
CXXFLAGS+=-DSDK_JNI
LIBZT_INCLUDES+=-I$(shell /usr/libexec/java_home)/include/$(OSTYPE)
LIBZT_DEFS+=-DSDK_JNI
endif
CXXFLAGS=$(CFLAGS) -Wno-format -fno-rtti -std=c++11
ZT_DEFS+=-DZT_SDK -DZT_SOFTWARE_UPDATE_DEFAULT="\"disable\""
LIBZT_DEFS+=
LIBZT_FILES:=src/VirtualTap.cpp src/libzt.cpp src/Utilities.cpp
STATIC_LIB=$(BUILD)/libzt.a

95
src/ZT1Service.cpp
View File

@@ -485,6 +485,101 @@ void zts_allow_http_control(bool allowed)
// TODO
}
#if defined(SDK_JNI)
namespace ZeroTier {
#include <jni.h>
JNIEXPORT void JNICALL Java_zerotier_ZeroTier_ztjni_1start(JNIEnv *env, jobject thisObj, jstring path) {
if (path) {
homeDir = env->GetStringUTFChars(path, NULL);
zts_start(homeDir.c_str());
}
}
// Shuts down ZeroTier service and SOCKS5 Proxy server
JNIEXPORT void JNICALL Java_zerotier_ZeroTier_ztjni_1stop(JNIEnv *env, jobject thisObj) {
if (ZeroTier::zt1Service) {
zts_stop();
}
}
// Returns whether the ZeroTier service is running
JNIEXPORT jboolean JNICALL Java_zerotier_ZeroTier_ztjni_1running(
JNIEnv *env, jobject thisObj)
{
return zts_running();
}
// Returns path for ZT config/data files
JNIEXPORT jstring JNICALL Java_zerotier_ZeroTier_ztjni_1homepath(
JNIEnv *env, jobject thisObj)
{
// TODO: fix, should copy into given arg
// return (*env).NewStringUTF(zts_get_homepath());
return (*env).NewStringUTF("");
}
// Join a network
JNIEXPORT void JNICALL Java_zerotier_ZeroTier_ztjni_1join(
JNIEnv *env, jobject thisObj, jstring nwid)
{
const char *nwidstr;
if (nwid) {
nwidstr = env->GetStringUTFChars(nwid, NULL);
zts_join(nwidstr);
}
}
// Leave a network
JNIEXPORT void JNICALL Java_zerotier_ZeroTier_ztjni_1leave(
JNIEnv *env, jobject thisObj, jstring nwid)
{
const char *nwidstr;
if (nwid) {
nwidstr = env->GetStringUTFChars(nwid, NULL);
zts_leave(nwidstr);
}
}
// FIXME: Re-implemented to make it play nicer with the C-linkage required for Xcode integrations
// Now only returns first assigned address per network. Shouldn't normally be a problem
JNIEXPORT jobject JNICALL Java_zerotier_ZeroTier_ztjni_1get_1ipv4_1address(
JNIEnv *env, jobject thisObj, jstring nwid)
{
const char *nwid_str = env->GetStringUTFChars(nwid, NULL);
char address_string[INET_ADDRSTRLEN];
memset(address_string, 0, INET_ADDRSTRLEN);
zts_get_ipv4_address(nwid_str, address_string, INET_ADDRSTRLEN);
jclass clazz = (*env).FindClass("java/util/ArrayList");
jobject addresses = (*env).NewObject(clazz, (*env).GetMethodID(clazz, "<init>", "()V"));
jstring _str = (*env).NewStringUTF(address_string);
env->CallBooleanMethod(addresses, env->GetMethodID(clazz, "add", "(Ljava/lang/Object;)Z"), _str);
return addresses;
}
JNIEXPORT jobject JNICALL Java_zerotier_ZeroTier_ztjni_1get_1ipv6_1address(
JNIEnv *env, jobject thisObj, jstring nwid)
{
const char *nwid_str = env->GetStringUTFChars(nwid, NULL);
char address_string[INET6_ADDRSTRLEN];
memset(address_string, 0, INET6_ADDRSTRLEN);
zts_get_ipv6_address(nwid_str, address_string, INET6_ADDRSTRLEN);
jclass clazz = (*env).FindClass("java/util/ArrayList");
jobject addresses = (*env).NewObject(clazz, (*env).GetMethodID(clazz, "<init>", "()V"));
jstring _str = (*env).NewStringUTF(address_string);
env->CallBooleanMethod(addresses, env->GetMethodID(clazz, "add", "(Ljava/lang/Object;)Z"), _str);
return addresses;
}
// Returns the device is in integer form
JNIEXPORT jint Java_zerotier_ZeroTier_ztjni_1get_1device_1id()
{
return zts_get_device_id(NULL); // TODO
}
}
#endif // SDK_JNI
#ifdef __cplusplus
}
#endif

190
src/libzt.cpp
View File

@@ -496,6 +496,196 @@ int zts_del_dns_nameserver(struct sockaddr *addr)
return err;
}
/****************************************************************************/
/* SDK Socket API (Java Native Interface JNI) */
/* JNI naming convention: Java_PACKAGENAME_CLASSNAME_METHODNAME */
/****************************************************************************/
#if defined(SDK_JNI)
namespace ZeroTier {
#include <jni.h>
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1sendto(
JNIEnv *env, jobject thisObj, jint fd, jarray buf, jint len, jint flags, jobject ztaddr)
{
struct sockaddr_in addr;
jclass cls = (*env).GetObjectClass( ztaddr);
jfieldID f = (*env).GetFieldID( cls, "port", "I");
addr.sin_port = htons((*env).GetIntField( ztaddr, f));
f = (*env).GetFieldID( cls, "_rawAddr", "J");
addr.sin_addr.s_addr = (*env).GetLongField( ztaddr, f);
addr.sin_family = AF_INET;
//LOGV("zt_sendto(): fd = %d\naddr = %s\nport=%d", fd, inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
// TODO: Optimize this
jbyte *body = (*env).GetByteArrayElements((_jbyteArray *)buf, 0);
char * bufp = (char *)malloc(sizeof(char)*len);
memcpy(bufp, body, len);
(*env).ReleaseByteArrayElements((_jbyteArray *)buf, body, 0);
// "connect" and send buffer contents
int sent_bytes = zts_sendto(fd, body, len, flags, (struct sockaddr *)&addr, sizeof(addr));
return sent_bytes;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1recvfrom(
JNIEnv *env, jobject thisObj, jint fd, jbyteArray buf, jint len, jint flags, jobject ztaddr)
{
struct sockaddr_in addr;
jbyte *body = (*env).GetByteArrayElements( buf, 0);
unsigned char buffer[ZT_SDK_MTU];
int payload_offset = sizeof(int32_t) + sizeof(struct sockaddr_storage);
int rxbytes = zts_recvfrom(fd, &buffer, len, flags, (struct sockaddr *)&addr, (socklen_t *)sizeof(struct sockaddr_storage));
if (rxbytes > 0)
memcpy(body, (jbyte*)buffer + payload_offset, rxbytes);
(*env).ReleaseByteArrayElements( buf, body, 0);
// Update fields of Java ZTAddress object
jfieldID fid;
jclass cls = (*env).GetObjectClass( ztaddr);
fid = (*env).GetFieldID( cls, "port", "I");
(*env).SetIntField( ztaddr, fid, addr.sin_port);
fid = (*env).GetFieldID( cls,"_rawAddr", "J");
(*env).SetLongField( ztaddr, fid,addr.sin_addr.s_addr);
return rxbytes;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1send(JNIEnv *env, jobject thisObj, jint fd, jarray buf, jint len, int flags)
{
jbyte *body = (*env).GetByteArrayElements((_jbyteArray *)buf, 0);
char * bufp = (char *)malloc(sizeof(char)*len);
memcpy(bufp, body, len);
(*env).ReleaseByteArrayElements((_jbyteArray *)buf, body, 0);
int written_bytes = zts_write(fd, body, len);
return written_bytes;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1write(JNIEnv *env, jobject thisObj,
jint fd, jarray buf, jint len)
{
jbyte *body = (*env).GetByteArrayElements((_jbyteArray *)buf, 0);
char * bufp = (char *)malloc(sizeof(char)*len);
memcpy(bufp, body, len);
(*env).ReleaseByteArrayElements((_jbyteArray *)buf, body, 0);
int written_bytes = zts_write(fd, body, len);
return written_bytes;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1read(JNIEnv *env, jobject thisObj,
jint fd, jarray buf, jint len)
{
jbyte *body = (*env).GetByteArrayElements((_jbyteArray *)buf, 0);
int read_bytes = read(fd, body, len);
(*env).ReleaseByteArrayElements((_jbyteArray *)buf, body, 0);
return read_bytes;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1setsockopt(
JNIEnv *env, jobject thisObj,
jint fd, jint level, jint optname, jint optval, jint optlen) {
return zts_setsockopt(fd, level, optname, (const void*)optval, optlen);
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1getsockopt(JNIEnv *env, jobject thisObj,
jint fd, jint level, jint optname, jint optval, jint optlen) {
return zts_getsockopt(fd, level, optname, (void*)optval, (socklen_t *)optlen);
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1socket(JNIEnv *env, jobject thisObj,
jint family, jint type, jint protocol) {
return zts_socket(family, type, protocol);
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1connect(JNIEnv *env, jobject thisObj,
jint fd, jstring addrstr, jint port) {
struct sockaddr_in addr;
const char *str = (*env).GetStringUTFChars( addrstr, 0);
addr.sin_addr.s_addr = inet_addr(str);
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
(*env).ReleaseStringUTFChars( addrstr, str);
return zts_connect(fd, (struct sockaddr *)&addr, sizeof(addr));
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1bind(JNIEnv *env, jobject thisObj,
jint fd, jstring addrstr, jint port) {
struct sockaddr_in addr;
const char *str = (*env).GetStringUTFChars( addrstr, 0);
DEBUG_INFO("fd=%d, addr=%s, port=%d", fd, str, port);
addr.sin_addr.s_addr = inet_addr(str);
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
(*env).ReleaseStringUTFChars( addrstr, str);
return zts_bind(fd, (struct sockaddr *)&addr, sizeof(addr));
}
#if defined(__linux__)
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1accept4(JNIEnv *env, jobject thisObj,
jint fd, jstring addrstr, jint port, jint flags) {
struct sockaddr_in addr;
char *str;
// = env->GetStringUTFChars(addrstr, NULL);
(*env).ReleaseStringUTFChars( addrstr, str);
addr.sin_addr.s_addr = inet_addr(str);
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
return zts_accept4(fd, (struct sockaddr *)&addr, sizeof(addr), flags);
}
#endif
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1accept(JNIEnv *env, jobject thisObj,
jint fd, jstring addrstr, jint port) {
struct sockaddr_in addr;
// TODO: Send addr info back to Javaland
addr.sin_addr.s_addr = inet_addr("");
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
return zts_accept(fd, (struct sockaddr *)&addr, (socklen_t *)sizeof(addr));
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1listen(JNIEnv *env, jobject thisObj,
jint fd, int backlog) {
return zts_listen(fd, backlog);
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1close(JNIEnv *env, jobject thisObj,
jint fd) {
return zts_close(fd);
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1getsockname(JNIEnv *env, jobject thisObj,
jint fd, jobject ztaddr) {
struct sockaddr_in addr;
int err = zts_getsockname(fd, (struct sockaddr *)&addr, (socklen_t *)sizeof(struct sockaddr));
jfieldID fid;
jclass cls = (*env).GetObjectClass(ztaddr);
fid = (*env).GetFieldID( cls, "port", "I");
(*env).SetIntField( ztaddr, fid, addr.sin_port);
fid = (*env).GetFieldID( cls,"_rawAddr", "J");
(*env).SetLongField( ztaddr, fid,addr.sin_addr.s_addr);
return err;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1getpeername(JNIEnv *env, jobject thisObj,
jint fd, jobject ztaddr) {
struct sockaddr_in addr;
int err = zts_getpeername(fd, (struct sockaddr *)&addr, (socklen_t *)sizeof(struct sockaddr));
jfieldID fid;
jclass cls = (*env).GetObjectClass( ztaddr);
fid = (*env).GetFieldID( cls, "port", "I");
(*env).SetIntField( ztaddr, fid, addr.sin_port);
fid = (*env).GetFieldID( cls,"_rawAddr", "J");
(*env).SetLongField( ztaddr, fid,addr.sin_addr.s_addr);
return err;
}
JNIEXPORT jint JNICALL Java_zerotier_ZeroTier_ztjni_1fcntl(JNIEnv *env, jobject thisObj,
jint fd, jint cmd, jint flags) {
return zts_fcntl(fd,cmd,flags);
}
}
#endif // SDK_JNI
#ifdef __cplusplus
}
#endif