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devilutionX-libzt/src/Sockets.cpp

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/*
* Copyright (c)2013-2020 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2024-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
/**
* @file
*
* ZeroTier Socket API
*/
#include "lwip/sockets.h"
#include "lwip/def.h"
#include "lwip/inet.h"
#include "lwip/stats.h"
#include "ZeroTierSockets.h"
//#include "Events.hpp"
#define ZTS_STATE_NODE_RUNNING 0x01
#define ZTS_STATE_STACK_RUNNING 0x02
#define ZTS_STATE_NET_SERVICE_RUNNING 0x04
#define ZTS_STATE_CALLBACKS_RUNNING 0x08
#define ZTS_STATE_FREE_CALLED 0x10
#ifdef SDK_JNI
#include <jni.h>
#endif
extern int zts_errno;
namespace ZeroTier {
extern uint8_t _serviceStateFlags;
#ifdef __cplusplus
extern "C" {
#endif
#ifdef SDK_JNI
void ss2zta(JNIEnv *env, struct zts_sockaddr_storage *ss, jobject addr);
void zta2ss(JNIEnv *env, struct zts_sockaddr_storage *ss, jobject addr);
void ztfdset2fdset(JNIEnv *env, int nfds, jobject src_ztfd_set, zts_fd_set *dest_fd_set);
void fdset2ztfdset(JNIEnv *env, int nfds, zts_fd_set *src_fd_set, jobject dest_ztfd_set);
#endif
int zts_socket(const int socket_family, const int socket_type, const int protocol)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_socket(socket_family, socket_type, protocol);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_socket(
JNIEnv *env, jobject thisObj, jint family, jint type, jint protocol)
{
int retval = zts_socket(family, type, protocol);
return retval > -1 ? retval : -(zts_errno); // Encode lwIP errno into return value for JNI functions only
}
#endif
int zts_connect(int fd, const struct zts_sockaddr *addr, zts_socklen_t addrlen)
{
if (!addr) {
return ZTS_ERR_ARG;
}
if (addrlen > (int)sizeof(struct zts_sockaddr_storage) || addrlen < (int)sizeof(struct zts_sockaddr_in)) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_connect(fd, (sockaddr*)addr, addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_connect(
JNIEnv *env, jobject thisObj, jint fd, jobject addr)
{
struct zts_sockaddr_storage ss;
zta2ss(env, &ss, addr);
socklen_t addrlen = ss.ss_family == ZTS_AF_INET ? sizeof(struct zts_sockaddr_in) : sizeof(struct zts_sockaddr_in6);
int retval = zts_connect(fd, (struct zts_sockaddr *)&ss, addrlen);
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_bind(int fd, const struct zts_sockaddr *addr, zts_socklen_t addrlen)
{
if (!addr) {
return ZTS_ERR_ARG;
}
if (addrlen > (int)sizeof(struct zts_sockaddr_storage) || addrlen < (int)sizeof(struct zts_sockaddr_in)) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_bind(fd, (sockaddr*)addr, addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_bind(
JNIEnv *env, jobject thisObj, jint fd, jobject addr)
{
struct zts_sockaddr_storage ss;
zta2ss(env, &ss, addr);
zts_socklen_t addrlen = ss.ss_family == ZTS_AF_INET ? sizeof(struct zts_sockaddr_in) : sizeof(struct zts_sockaddr_in6);
int retval = zts_bind(fd, (struct zts_sockaddr*)&ss, addrlen);
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_listen(int fd, int backlog)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_listen(fd, backlog);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_listen(
JNIEnv *env, jobject thisObj, jint fd, int backlog)
{
int retval = zts_listen(fd, backlog);
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_accept(int fd, struct zts_sockaddr *addr, zts_socklen_t *addrlen)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_accept(fd, (sockaddr*)addr, (socklen_t*)addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_accept(
JNIEnv *env, jobject thisObj, jint fd, jobject addr, jint port)
{
struct zts_sockaddr_storage ss;
zts_socklen_t addrlen = sizeof(struct zts_sockaddr_storage);
int retval = zts_accept(fd, (zts_sockaddr*)&ss, &addrlen);
ss2zta(env, &ss, addr);
return retval > -1 ? retval : -(zts_errno);
}
#endif
#if defined(__linux__)
int zts_accept4(int fd, struct zts_sockaddr *addr, zts_socklen_t *addrlen, int flags)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return ZTS_ERR_SERVICE; // TODO
}
#endif
#ifdef SDK_JNI
#if defined(__linux__)
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_accept4(
JNIEnv *env, jobject thisObj, jint fd, jobject addr, jint port, jint flags)
{
struct zts_sockaddr_storage ss;
zts_socklen_t addrlen = sizeof(struct zts_sockaddr_storage);
int retval = zts_accept4(fd, (struct zts_sockaddr *)&ss, &addrlen, flags);
ss2zta(env, &ss, addr);
return retval > -1 ? retval : -(zts_errno);
}
#endif
#endif
int zts_setsockopt(int fd, int level, int optname, const void *optval,zts_socklen_t optlen)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_setsockopt(fd, level, optname, optval, optlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_setsockopt(
JNIEnv *env, jobject thisObj, jint fd, jint level, jint optname, jobject optval)
{
jclass c = env->GetObjectClass(optval);
if (!c) {
return ZTS_ERR_SERVICE;
}
int optval_int = -1;
if (optname == SO_BROADCAST
|| optname == SO_KEEPALIVE
|| optname == SO_REUSEADDR
|| optname == SO_REUSEPORT
|| optname == TCP_NODELAY)
{
jfieldID fid = env->GetFieldID(c, "booleanValue", "Z");
optval_int = (int)(env->GetBooleanField(optval, fid));
}
if (optname == IP_TTL
|| optname == SO_RCVTIMEO
|| optname == IP_TOS
|| optname == SO_LINGER
|| optname == SO_RCVBUF
|| optname == SO_SNDBUF)
{
jfieldID fid = env->GetFieldID(c, "integerValue", "I");
optval_int = env->GetIntField(optval, fid);
}
int retval = ZTS_ERR_OK;
if (optname == SO_RCVTIMEO) {
struct timeval tv;
// Convert milliseconds from setSoTimeout() call to seconds and microseconds
tv.tv_usec = optval_int * 1000;
tv.tv_sec = optval_int / 1000000;
retval = zts_setsockopt(fd, level, optname, &tv, sizeof(tv));
}
else {
retval = zts_setsockopt(fd, level, optname, &optval_int, sizeof(optval_int));
}
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_getsockopt(int fd, int level, int optname, void *optval, zts_socklen_t *optlen)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_getsockopt(fd, level, optname, optval, (socklen_t*)optlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_getsockopt(
JNIEnv *env, jobject thisObj, jint fd, jint level, jint optname, jobject optval)
{
jclass c = env->GetObjectClass(optval);
if (!c) {
return ZTS_ERR_SERVICE;
}
int optval_int = 0;
zts_socklen_t optlen; // Intentionally not used
int retval;
if (optname == SO_RCVTIMEO) {
struct zts_timeval tv;
optlen = sizeof(tv);
retval = zts_getsockopt(fd, level, optname, &tv, &optlen);
// Convert seconds and microseconds back to milliseconds
optval_int = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
}
else {
retval = zts_getsockopt(fd, level, optname, &optval_int, &optlen);
}
if (optname == SO_BROADCAST
|| optname == SO_KEEPALIVE
|| optname == SO_REUSEADDR
|| optname == SO_REUSEPORT
|| optname == TCP_NODELAY)
{
jfieldID fid = env->GetFieldID(c, "isBoolean", "Z");
env->SetBooleanField(optval, fid, true);
fid = env->GetFieldID(c, "booleanValue", "Z");
env->SetBooleanField(optval, fid, (bool)optval_int);
}
if (optname == IP_TTL
|| optname == SO_RCVTIMEO
|| optname == IP_TOS
|| optname == SO_LINGER
|| optname == SO_RCVBUF
|| optname == SO_SNDBUF)
{
jfieldID fid = env->GetFieldID(c, "isInteger", "Z");
env->SetBooleanField(optval, fid, true);
fid = env->GetFieldID(c, "integerValue", "I");
env->SetIntField(optval, fid, optval_int);
}
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_getsockname(int fd, struct zts_sockaddr *addr, zts_socklen_t *addrlen)
{
if (!addr) {
return ZTS_ERR_ARG;
}
if (*addrlen > (int)sizeof(struct zts_sockaddr_storage) || *addrlen < (int)sizeof(struct zts_sockaddr_in)) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_getsockname(fd, (sockaddr*)addr, (socklen_t*)addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jboolean JNICALL Java_com_zerotier_libzt_ZeroTier_getsockname(JNIEnv *env, jobject thisObj,
jint fd, jobject addr)
{
struct zts_sockaddr_storage ss;
zts_socklen_t addrlen = sizeof(struct zts_sockaddr_storage);
int retval = zts_getsockname(fd, (struct zts_sockaddr *)&ss, &addrlen);
ss2zta(env, &ss, addr);
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_getpeername(int fd, struct zts_sockaddr *addr, zts_socklen_t *addrlen)
{
if (!addr) {
return ZTS_ERR_ARG;
}
if (*addrlen > (int)sizeof(struct zts_sockaddr_storage) || *addrlen < (int)sizeof(struct zts_sockaddr_in)) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_getpeername(fd, (sockaddr*)addr, (socklen_t*)addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_getpeername(JNIEnv *env, jobject thisObj,
jint fd, jobject addr)
{
struct zts_sockaddr_storage ss;
int retval = zts_getpeername(fd, (struct zts_sockaddr *)&ss, (zts_socklen_t*)sizeof(struct zts_sockaddr_storage));
ss2zta(env, &ss, addr);
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_close(int fd)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_close(fd);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_close(
JNIEnv *env, jobject thisObj, jint fd)
{
return zts_close(fd);
}
#endif
int zts_select(int nfds, zts_fd_set *readfds, zts_fd_set *writefds, zts_fd_set *exceptfds,
struct zts_timeval *timeout)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_select(nfds, (fd_set*)readfds, (fd_set*)writefds, (fd_set*)exceptfds, (timeval*)timeout);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_select(JNIEnv *env, jobject thisObj,
jint nfds, jobject readfds, jobject writefds, jobject exceptfds, jint timeout_sec, jint timeout_usec)
{
struct zts_timeval _timeout;
_timeout.tv_sec = timeout_sec;
_timeout.tv_usec = timeout_usec;
zts_fd_set _readfds, _writefds, _exceptfds;
zts_fd_set *r = NULL;
zts_fd_set *w = NULL;
zts_fd_set *e = NULL;
if (readfds) {
r = &_readfds;
ztfdset2fdset(env, nfds, readfds, &_readfds);
}
if (writefds) {
w = &_writefds;
ztfdset2fdset(env, nfds, writefds, &_writefds);
}
if (exceptfds) {
e = &_exceptfds;
ztfdset2fdset(env, nfds, exceptfds, &_exceptfds);
}
int retval = zts_select(nfds, r, w, e, &_timeout);
if (readfds) {
fdset2ztfdset(env, nfds, &_readfds, readfds);
}
if (writefds) {
fdset2ztfdset(env, nfds, &_writefds, writefds);
}
if (exceptfds) {
fdset2ztfdset(env, nfds, &_exceptfds, exceptfds);
}
return retval > -1 ? retval : -(zts_errno);
}
#endif
int zts_fcntl(int fd, int cmd, int flags)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_fcntl(fd, cmd, flags);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_fcntl(
JNIEnv *env, jobject thisObj, jint fd, jint cmd, jint flags)
{
int retval = zts_fcntl(fd, cmd, flags);
return retval > -1 ? retval : -(zts_errno);
}
#endif
// TODO: JNI version
int zts_poll(struct zts_pollfd *fds, nfds_t nfds, int timeout)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_poll((pollfd*)fds, nfds, timeout);
}
int zts_ioctl(int fd, unsigned long request, void *argp)
{
if (!argp) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_ioctl(fd, request, argp);
}
#ifdef SDK_JNI
JNIEXPORT int JNICALL Java_com_zerotier_libzt_ZeroTier_ioctl(
JNIEnv *env, jobject thisObj, jint fd, jlong request, jobject argp)
{
int retval = ZTS_ERR_OK;
if (request == FIONREAD) {
int bytesRemaining = 0;
retval = zts_ioctl(fd, request, &bytesRemaining);
// set value in general object
jclass c = env->GetObjectClass(argp);
if (!c) {
return ZTS_ERR_ARG;
}
jfieldID fid = env->GetFieldID(c, "integer", "I");
env->SetIntField(argp, fid, bytesRemaining);
}
if (request == FIONBIO) {
// TODO: double check
int meaninglessVariable = 0;
retval = zts_ioctl(fd, request, &meaninglessVariable);
}
return retval > -1 ? retval : -(zts_errno);
}
#endif
ssize_t zts_send(int fd, const void *buf, size_t len, int flags)
{
if (!buf || len <= 0) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_send(fd, buf, len, flags);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_send(
JNIEnv *env, jobject thisObj, jint fd, jbyteArray buf, int flags)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_send(fd, data, env->GetArrayLength(buf), flags);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
#endif
ssize_t zts_sendto(int fd, const void *buf, size_t len, int flags,
const struct zts_sockaddr *addr,zts_socklen_t addrlen)
{
if (!addr || !buf || len <= 0) {
return ZTS_ERR_ARG;
}
if (addrlen > (int)sizeof(struct zts_sockaddr_storage) || addrlen < (int)sizeof(struct zts_sockaddr_in)) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_sendto(fd, buf, len, flags, (sockaddr*)addr, addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_sendto(
JNIEnv *env, jobject thisObj, jint fd, jbyteArray buf, jint flags, jobject addr)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
struct zts_sockaddr_storage ss;
zta2ss(env, &ss, addr);
zts_socklen_t addrlen = ss.ss_family == ZTS_AF_INET ? sizeof(struct zts_sockaddr_in) : sizeof(struct zts_sockaddr_in6);
int retval = zts_sendto(fd, data, env->GetArrayLength(buf), flags, (struct zts_sockaddr *)&ss, addrlen);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
#endif
ssize_t zts_sendmsg(int fd, const struct msghdr *msg, int flags)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_sendmsg(fd, msg, flags);
}
#ifdef SDK_JNI
#endif
ssize_t zts_recv(int fd, void *buf, size_t len, int flags)
{
if (!buf) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_recv(fd, buf, len, flags);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_recv(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf, jint flags)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_recv(fd, data, env->GetArrayLength(buf), flags);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
#endif
ssize_t zts_recvfrom(int fd, void *buf, size_t len, int flags,
struct zts_sockaddr *addr, zts_socklen_t *addrlen)
{
if (!buf) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_recvfrom(fd, buf, len, flags, (sockaddr*)addr, (socklen_t*)addrlen);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_recvfrom(
JNIEnv *env, jobject thisObj, jint fd, jbyteArray buf, jint flags, jobject addr)
{
zts_socklen_t addrlen = sizeof(struct zts_sockaddr_storage);
struct zts_sockaddr_storage ss;
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_recvfrom(fd, data, env->GetArrayLength(buf), flags, (struct zts_sockaddr *)&ss, &addrlen);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
ss2zta(env, &ss, addr);
return retval > -1 ? retval : -(zts_errno);
}
#endif
// TODO: JNI version
ssize_t zts_recvmsg(int fd, struct msghdr *msg, int flags)
{
if (!msg) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_recvmsg(fd, msg, flags);
}
#ifdef SDK_JNI
#endif
ssize_t zts_read(int fd, void *buf, size_t len)
{
if (!buf) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_read(fd, buf, len);
}
ssize_t zts_read_offset(int fd, void *buf, size_t offset, size_t len)
{
if (!buf) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
char *cbuf = (char*)buf;
return lwip_read(fd, &(cbuf[offset]), len);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_read(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_read(fd, data, env->GetArrayLength(buf));
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_read_1offset(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf, jint offset, jint len)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_read_offset(fd, data, offset, len);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_read_1length(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf, jint len)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_read(fd, data, len);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
#endif
// TODO: JNI version
ssize_t zts_readv(int s, const struct zts_iovec *iov, int iovcnt)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_readv(s, (iovec*)iov, iovcnt);
}
ssize_t zts_write(int fd, const void *buf, size_t len)
{
if (!buf || len <= 0) {
return ZTS_ERR_ARG;
}
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_write(fd, buf, len);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_write__IB(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_write(fd, data, env->GetArrayLength(buf));
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_write_1offset(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf, jint offset, jint len)
{
void *data = env->GetPrimitiveArrayCritical(&(buf[offset]), NULL); // PENDING: check?
int retval = zts_write(fd, data, len);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_write_1byte(JNIEnv *env, jobject thisObj,
jint fd, jbyte buf)
{
int retval = zts_write(fd, &buf, 1);
return retval > -1 ? retval : -(zts_errno);
}
#endif
// TODO: JNI version
ssize_t zts_writev(int fd, const struct zts_iovec *iov, int iovcnt)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_writev(fd, (iovec*)iov, iovcnt);
}
int zts_shutdown(int fd, int how)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return lwip_shutdown(fd, how);
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_shutdown(
JNIEnv *env, jobject thisObj, int fd, int how)
{
return zts_shutdown(fd, how);
}
#endif
int zts_add_dns_nameserver(struct zts_sockaddr *addr)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return ZTS_ERR_SERVICE; // TODO
}
#ifdef SDK_JNI
#endif
int zts_del_dns_nameserver(struct zts_sockaddr *addr)
{
if (!(_serviceStateFlags & ZTS_STATE_NET_SERVICE_RUNNING)) {
return ZTS_ERR_SERVICE;
}
return ZTS_ERR_SERVICE; // TODO
}
#ifdef SDK_JNI
#endif
uint16_t zts_htons(uint16_t n)
{
return lwip_htons(n);
}
uint32_t zts_htonl(uint32_t n)
{
return lwip_htonl(n);
}
uint16_t zts_ntohs(uint16_t n)
{
return lwip_htons(n);
}
uint32_t zts_ntohl(uint32_t n)
{
return lwip_htonl(n);
}
const char *zts_inet_ntop(int af, const void *src, char *dst,zts_socklen_t size)
{
return lwip_inet_ntop(af,src,dst,size);
}
int zts_inet_pton(int af, const char *src, void *dst)
{
return lwip_inet_pton(af,src,dst);
}
uint32_t zts_inet_addr(const char *cp)
{
return ipaddr_addr(cp);
}
//////////////////////////////////////////////////////////////////////////////
// Statistics //
//////////////////////////////////////////////////////////////////////////////
extern struct stats_ lwip_stats;
int zts_get_all_stats(struct zts_stats *statsDest)
{
#if LWIP_STATS
if (!statsDest) {
return ZTS_ERR_ARG;
}
memset(statsDest, 0, sizeof(struct zts_stats));
// Copy lwIP stats
memcpy(&(statsDest->link), &(lwip_stats.link), sizeof(struct stats_proto));
memcpy(&(statsDest->etharp), &(lwip_stats.etharp), sizeof(struct stats_proto));
memcpy(&(statsDest->ip_frag), &(lwip_stats.ip_frag), sizeof(struct stats_proto));
memcpy(&(statsDest->ip), &(lwip_stats.ip), sizeof(struct stats_proto));
memcpy(&(statsDest->icmp), &(lwip_stats.icmp), sizeof(struct stats_proto));
//memcpy(&(statsDest->igmp), &(lwip_stats.igmp), sizeof(struct stats_igmp));
memcpy(&(statsDest->udp), &(lwip_stats.udp), sizeof(struct stats_proto));
memcpy(&(statsDest->tcp), &(lwip_stats.tcp), sizeof(struct stats_proto));
// mem omitted
// memp omitted
memcpy(&(statsDest->sys), &(lwip_stats.sys), sizeof(struct stats_sys));
memcpy(&(statsDest->ip6), &(lwip_stats.ip6), sizeof(struct stats_proto));
memcpy(&(statsDest->icmp6), &(lwip_stats.icmp6), sizeof(struct stats_proto));
memcpy(&(statsDest->ip6_frag), &(lwip_stats.ip6_frag), sizeof(struct stats_proto));
memcpy(&(statsDest->mld6), &(lwip_stats.mld6), sizeof(struct stats_igmp));
memcpy(&(statsDest->nd6), &(lwip_stats.nd6), sizeof(struct stats_proto));
memcpy(&(statsDest->ip_frag), &(lwip_stats.ip_frag), sizeof(struct stats_proto));
// mib2 omitted
// Copy ZT stats
// ...
return ZTS_ERR_OK;
#else
return ZTS_ERR_NO_RESULT;
#endif
}
#ifdef SDK_JNI
// No implementation for JNI
#endif
int zts_get_protocol_stats(int protocolType, void *protoStatsDest)
{
#if LWIP_STATS
if (!protoStatsDest) {
return ZTS_ERR_ARG;
}
memset(protoStatsDest, 0, sizeof(struct stats_proto));
switch (protocolType)
{
case ZTS_STATS_PROTOCOL_LINK:
memcpy(protoStatsDest, &(lwip_stats.link), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_ETHARP:
memcpy(protoStatsDest, &(lwip_stats.etharp), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_IP:
memcpy(protoStatsDest, &(lwip_stats.ip), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_UDP:
memcpy(protoStatsDest, &(lwip_stats.udp), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_TCP:
memcpy(protoStatsDest, &(lwip_stats.tcp), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_ICMP:
memcpy(protoStatsDest, &(lwip_stats.icmp), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_IP_FRAG:
memcpy(protoStatsDest, &(lwip_stats.ip_frag), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_IP6:
memcpy(protoStatsDest, &(lwip_stats.ip6), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_ICMP6:
memcpy(protoStatsDest, &(lwip_stats.icmp6), sizeof(struct stats_proto));
break;
case ZTS_STATS_PROTOCOL_IP6_FRAG:
memcpy(protoStatsDest, &(lwip_stats.ip6_frag), sizeof(struct stats_proto));
break;
default:
return ZTS_ERR_ARG;
}
return ZTS_ERR_OK;
#else
return ZTS_ERR_NO_RESULT;
#endif
}
#ifdef SDK_JNI
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_get_1protocol_1stats(
JNIEnv *env, jobject thisObj, jint protocolType, jobject protoStatsObj)
{
struct stats_proto stats;
int retval = zts_get_protocol_stats(protocolType, &stats);
// Copy stats into Java object
jclass c = env->GetObjectClass(protoStatsObj);
if (!c) {
return ZTS_ERR_ARG;
}
jfieldID fid;
fid = env->GetFieldID(c, "xmit", "I");
env->SetIntField(protoStatsObj, fid, stats.xmit);
fid = env->GetFieldID(c, "recv", "I");
env->SetIntField(protoStatsObj, fid, stats.recv);
fid = env->GetFieldID(c, "fw", "I");
env->SetIntField(protoStatsObj, fid, stats.fw);
fid = env->GetFieldID(c, "drop", "I");
env->SetIntField(protoStatsObj, fid, stats.drop);
fid = env->GetFieldID(c, "chkerr", "I");
env->SetIntField(protoStatsObj, fid, stats.chkerr);
fid = env->GetFieldID(c, "lenerr", "I");
env->SetIntField(protoStatsObj, fid, stats.lenerr);
fid = env->GetFieldID(c, "memerr", "I");
env->SetIntField(protoStatsObj, fid, stats.memerr);
fid = env->GetFieldID(c, "rterr", "I");
env->SetIntField(protoStatsObj, fid, stats.rterr);
fid = env->GetFieldID(c, "proterr", "I");
env->SetIntField(protoStatsObj, fid, stats.proterr);
fid = env->GetFieldID(c, "opterr", "I");
env->SetIntField(protoStatsObj, fid, stats.opterr);
fid = env->GetFieldID(c, "err", "I");
env->SetIntField(protoStatsObj, fid, stats.err);
fid = env->GetFieldID(c, "cachehit", "I");
env->SetIntField(protoStatsObj, fid, stats.cachehit);
return retval;
}
#endif
#ifdef SDK_JNI
void ztfdset2fdset(JNIEnv *env, int nfds, jobject src_ztfd_set, zts_fd_set *dest_fd_set)
{
jclass c = env->GetObjectClass(src_ztfd_set);
if (!c) {
return;
}
ZTS_FD_ZERO(dest_fd_set);
jfieldID fid = env->GetFieldID(c, "fds_bits", "[B");
jobject fdData = env->GetObjectField (src_ztfd_set, fid);
jbyteArray * arr = reinterpret_cast<jbyteArray*>(&fdData);
char *data = (char*)env->GetByteArrayElements(*arr, NULL);
for (int i=0; i<nfds; i++) {
if (data[i] == 0x01) {
ZTS_FD_SET(i, dest_fd_set);
}
}
env->ReleaseByteArrayElements(*arr, (jbyte*)data, 0);
return;
}
void fdset2ztfdset(JNIEnv *env, int nfds, zts_fd_set *src_fd_set, jobject dest_ztfd_set)
{
jclass c = env->GetObjectClass(dest_ztfd_set);
if (!c) {
return;
}
jfieldID fid = env->GetFieldID(c, "fds_bits", "[B");
jobject fdData = env->GetObjectField (dest_ztfd_set, fid);
jbyteArray * arr = reinterpret_cast<jbyteArray*>(&fdData);
char *data = (char*)env->GetByteArrayElements(*arr, NULL);
for (int i=0; i<nfds; i++) {
if (ZTS_FD_ISSET(i, src_fd_set)) {
data[i] = 0x01;
}
}
env->ReleaseByteArrayElements(*arr, (jbyte*)data, 0);
return;
}
//////////////////////////////////////////////////////////////////////////////
// Helpers (for moving data across the JNI barrier) //
//////////////////////////////////////////////////////////////////////////////
void ss2zta(JNIEnv *env, struct zts_sockaddr_storage *ss, jobject addr)
{
jclass c = env->GetObjectClass(addr);
if (!c) {
return;
}
if(ss->ss_family == ZTS_AF_INET)
{
struct zts_sockaddr_in *in4 = (struct zts_sockaddr_in*)ss;
jfieldID fid = env->GetFieldID(c, "_port", "I");
env->SetIntField(addr, fid, lwip_ntohs(in4->sin_port));
fid = env->GetFieldID(c,"_family", "I");
env->SetIntField(addr, fid, (in4->sin_family));
fid = env->GetFieldID(c, "_ip4", "[B");
jobject ipData = env->GetObjectField (addr, fid);
jbyteArray * arr = reinterpret_cast<jbyteArray*>(&ipData);
char *data = (char*)env->GetByteArrayElements(*arr, NULL);
memcpy(data, &(in4->sin_addr.s_addr), 4);
env->ReleaseByteArrayElements(*arr, (jbyte*)data, 0);
return;
}
if(ss->ss_family == ZTS_AF_INET6)
{
struct zts_sockaddr_in6 *in6 = (struct zts_sockaddr_in6*)ss;
jfieldID fid = env->GetFieldID(c, "_port", "I");
env->SetIntField(addr, fid, lwip_ntohs(in6->sin6_port));
fid = env->GetFieldID(c,"_family", "I");
env->SetIntField(addr, fid, (in6->sin6_family));
fid = env->GetFieldID(c, "_ip6", "[B");
jobject ipData = env->GetObjectField (addr, fid);
jbyteArray * arr = reinterpret_cast<jbyteArray*>(&ipData);
char *data = (char*)env->GetByteArrayElements(*arr, NULL);
memcpy(data, &(in6->sin6_addr.s6_addr), 16);
env->ReleaseByteArrayElements(*arr, (jbyte*)data, 0);
return;
}
}
void zta2ss(JNIEnv *env, struct zts_sockaddr_storage *ss, jobject addr)
{
jclass c = env->GetObjectClass(addr);
if (!c) {
return;
}
jfieldID fid = env->GetFieldID(c, "_family", "I");
int family = env->GetIntField(addr, fid);
if (family == ZTS_AF_INET)
{
struct zts_sockaddr_in *in4 = (struct zts_sockaddr_in*)ss;
fid = env->GetFieldID(c, "_port", "I");
in4->sin_port = lwip_htons(env->GetIntField(addr, fid));
in4->sin_family = ZTS_AF_INET;
fid = env->GetFieldID(c, "_ip4", "[B");
jobject ipData = env->GetObjectField (addr, fid);
jbyteArray * arr = reinterpret_cast<jbyteArray*>(&ipData);
char *data = (char*)env->GetByteArrayElements(*arr, NULL);
memcpy(&(in4->sin_addr.s_addr), data, 4);
env->ReleaseByteArrayElements(*arr, (jbyte*)data, 0);
return;
}
if (family == ZTS_AF_INET6)
{
struct zts_sockaddr_in6 *in6 = (struct zts_sockaddr_in6*)ss;
jfieldID fid = env->GetFieldID(c, "_port", "I");
in6->sin6_port = lwip_htons(env->GetIntField(addr, fid));
fid = env->GetFieldID(c,"_family", "I");
in6->sin6_family = ZTS_AF_INET6;
fid = env->GetFieldID(c, "_ip6", "[B");
jobject ipData = env->GetObjectField (addr, fid);
jbyteArray * arr = reinterpret_cast<jbyteArray*>(&ipData);
char *data = (char*)env->GetByteArrayElements(*arr, NULL);
memcpy(&(in6->sin6_addr.s6_addr), data, 16);
env->ReleaseByteArrayElements(*arr, (jbyte*)data, 0);
return;
}
}
#endif // JNI
#ifdef __cplusplus
}
#endif
} // namespace ZeroTier