static jint netty_epoll_native_sendmmsg0(JNIEnv* env, jclass clazz, jint fd, jobjectArray packets, jint offset, jint len) {
struct mmsghdr msg[len];
struct sockaddr_storage addr[len];
socklen_t addrSize;
int i;
memset(msg, 0, sizeof(msg));
for (i = 0; i < len; i++) {
jobject packet = (*env)->GetObjectArrayElement(env, packets, i + offset);
jbyteArray address = (jbyteArray) (*env)->GetObjectField(env, packet, packetAddrFieldId);
jint scopeId = (*env)->GetIntField(env, packet, packetScopeIdFieldId);
jint port = (*env)->GetIntField(env, packet, packetPortFieldId);
if (netty_unix_socket_initSockaddr(env, address, scopeId, port, &addr[i], &addrSize) == -1) {
return -1;
}
msg[i].msg_hdr.msg_name = &addr[i];
msg[i].msg_hdr.msg_namelen = addrSize;
msg[i].msg_hdr.msg_iov = (struct iovec*) (intptr_t) (*env)->GetLongField(env, packet, packetMemoryAddressFieldId);
msg[i].msg_hdr.msg_iovlen = (*env)->GetIntField(env, packet, packetCountFieldId);;
}
ssize_t res;
int err;
do {
res = sendmmsg(fd, msg, len, 0);
// keep on writing if it was interrupted
} while (res == -1 && ((err = errno) == EINTR));
if (res < 0) {
return -err;
}
return (jint) res;
}
JNIEXPORT void JNICALL Java_io_netty_channel_epoll_Native_setTcpMd5Sig0(JNIEnv* env, jclass clazz, jint fd, jbyteArray address, jint scopeId, jbyteArray key) {
struct sockaddr_storage addr;
if (netty_unix_socket_initSockaddr(env, address, scopeId, 0, &addr) == -1) {
return;
}
struct tcp_md5sig md5sig;
memset(&md5sig, 0, sizeof(md5sig));
md5sig.tcpm_addr.ss_family = addr.ss_family;
struct sockaddr_in* ipaddr;
struct sockaddr_in6* ip6addr;
switch (addr.ss_family) {
case AF_INET:
ipaddr = (struct sockaddr_in*) &addr;
memcpy(&((struct sockaddr_in *) &md5sig.tcpm_addr)->sin_addr, &ipaddr->sin_addr, sizeof(ipaddr->sin_addr));
break;
case AF_INET6:
ip6addr = (struct sockaddr_in6*) &addr;
memcpy(&((struct sockaddr_in6 *) &md5sig.tcpm_addr)->sin6_addr, &ip6addr->sin6_addr, sizeof(ip6addr->sin6_addr));
break;
}
if (key != NULL) {
md5sig.tcpm_keylen = (*env)->GetArrayLength(env, key);
(*env)->GetByteArrayRegion(env, key, 0, md5sig.tcpm_keylen, (void *) &md5sig.tcpm_key);
if ((*env)->ExceptionCheck(env) == JNI_TRUE) {
return;
}
}
if (setsockopt(fd, IPPROTO_TCP, TCP_MD5SIG, &md5sig, sizeof(md5sig)) < 0) {
netty_unix_errors_throwChannelExceptionErrorNo(env, "setsockopt() failed: ", errno);
}
}
