Fix support for IP_RECVORIGDSTADDR when using native epoll transport (#11173)
Motivation:
While adding support for GRO (b05fdf3ff8) we broke support for IP_RECVORIGDSTADDR when using the native transport. Beside this we also didnt correctly handle IP_RECVORIGDSTADDR when recvmmsg was used.
Modifications:
- Fix support for IP_RECVORIGDSTADDR when using the native epoll transport for normal reads (recvmsg) but also for scattering reads (recvmmsg)
- Remove code from unix code-base as the support is linux specific and we not need the code there anymore
Result:
Fixes https://github.com/netty/netty/issues/11141
This commit is contained in:
Norman Maurer
GitHub
parent
697952e3e6
commit
e27831d767
@ -76,6 +76,11 @@
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#define UDP_GRO 104
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#endif
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#ifdef IP_RECVORIGDSTADDR
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#if !defined(SOL_IP) && defined(IPPROTO_IP)
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#define SOL_IP IPPROTO_IP
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#endif /* !SOL_IP && IPPROTO_IP */
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#endif // IP_RECVORIGDSTADDR
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// optional
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extern int epoll_create1(int flags) __attribute__((weak));
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@ -115,11 +120,16 @@ struct mmsghdr {
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#endif // SYS_sendmmsg
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// Those are initialized in the init(...) method and cached for performance reasons
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static jfieldID packetAddrFieldId = NULL;
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static jfieldID packetAddrLenFieldId = NULL;
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static jfieldID packetSenderAddrFieldId = NULL;
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static jfieldID packetSenderAddrLenFieldId = NULL;
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static jfieldID packetSenderScopeIdFieldId = NULL;
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static jfieldID packetSenderPortFieldId = NULL;
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static jfieldID packetRecipientAddrFieldId = NULL;
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static jfieldID packetRecipientAddrLenFieldId = NULL;
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static jfieldID packetRecipientScopeIdFieldId = NULL;
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static jfieldID packetRecipientPortFieldId = NULL;
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static jfieldID packetSegmentSizeFieldId = NULL;
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static jfieldID packetScopeIdFieldId = NULL;
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static jfieldID packetPortFieldId = NULL;
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static jfieldID packetMemoryAddressFieldId = NULL;
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static jfieldID packetCountFieldId = NULL;
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@ -344,8 +354,8 @@ static jint netty_epoll_native_sendmmsg0(JNIEnv* env, jclass clazz, jint fd, jbo
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for (i = 0; i < len; i++) {
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jobject packet = (*env)->GetObjectArrayElement(env, packets, i + offset);
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jbyteArray address = (jbyteArray) (*env)->GetObjectField(env, packet, packetAddrFieldId);
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jint addrLen = (*env)->GetIntField(env, packet, packetAddrLenFieldId);
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jbyteArray address = (jbyteArray) (*env)->GetObjectField(env, packet, packetRecipientAddrFieldId);
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jint addrLen = (*env)->GetIntField(env, packet, packetRecipientAddrLenFieldId);
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jint packetSegmentSize = (*env)->GetIntField(env, packet, packetSegmentSizeFieldId);
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if (packetSegmentSize > 0) {
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msg[i].msg_hdr.msg_control = controls[i];
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@ -357,8 +367,8 @@ static jint netty_epoll_native_sendmmsg0(JNIEnv* env, jclass clazz, jint fd, jbo
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*((uint16_t *) CMSG_DATA(cm)) = packetSegmentSize;
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}
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if (addrLen != 0) {
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jint scopeId = (*env)->GetIntField(env, packet, packetScopeIdFieldId);
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jint port = (*env)->GetIntField(env, packet, packetPortFieldId);
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jint scopeId = (*env)->GetIntField(env, packet, packetRecipientScopeIdFieldId);
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jint port = (*env)->GetIntField(env, packet, packetRecipientPortFieldId);
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if (netty_unix_socket_initSockaddr(env, ipv6, address, scopeId, port, &addr[i], &addrSize) == -1) {
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return -1;
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@ -385,20 +395,17 @@ static jint netty_epoll_native_sendmmsg0(JNIEnv* env, jclass clazz, jint fd, jbo
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return (jint) res;
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}
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static void init_packet(JNIEnv* env, jobject packet, struct msghdr* msg, int len) {
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jbyteArray address = (jbyteArray) (*env)->GetObjectField(env, packet, packetAddrFieldId);
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(*env)->SetIntField(env, packet, packetCountFieldId, len);
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struct sockaddr_storage* addr = (struct sockaddr_storage*) msg->msg_name;
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static void init_packet_address(JNIEnv* env, jobject packet, struct sockaddr_storage* addr, jfieldID addrFieldId,
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jfieldID addrLenFieldId, jfieldID scopeIdFieldId, jfieldID portFieldId) {
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jbyteArray address = (jbyteArray) (*env)->GetObjectField(env, packet, addrFieldId);
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if (addr->ss_family == AF_INET) {
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struct sockaddr_in* ipaddr = (struct sockaddr_in*) addr;
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(*env)->SetByteArrayRegion(env, address, 0, 4, (jbyte*) &ipaddr->sin_addr.s_addr);
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(*env)->SetIntField(env, packet, packetAddrLenFieldId, 4);
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(*env)->SetIntField(env, packet, packetScopeIdFieldId, 0);
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(*env)->SetIntField(env, packet, packetPortFieldId, ntohs(ipaddr->sin_port));
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(*env)->SetIntField(env, packet, addrLenFieldId, 4);
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(*env)->SetIntField(env, packet, scopeIdFieldId, 0);
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(*env)->SetIntField(env, packet, portFieldId, ntohs(ipaddr->sin_port));
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} else {
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int addrLen = netty_unix_socket_ipAddressLength(addr);
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struct sockaddr_in6* ip6addr = (struct sockaddr_in6*) addr;
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@ -410,10 +417,17 @@ static void init_packet(JNIEnv* env, jobject packet, struct msghdr* msg, int len
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} else {
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(*env)->SetByteArrayRegion(env, address, 0, 16, (jbyte*) &ip6addr->sin6_addr.s6_addr);
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}
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(*env)->SetIntField(env, packet, packetAddrLenFieldId, addrLen);
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(*env)->SetIntField(env, packet, packetScopeIdFieldId, ip6addr->sin6_scope_id);
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(*env)->SetIntField(env, packet, packetPortFieldId, ntohs(ip6addr->sin6_port));
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(*env)->SetIntField(env, packet, addrLenFieldId, addrLen);
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(*env)->SetIntField(env, packet, scopeIdFieldId, ip6addr->sin6_scope_id);
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(*env)->SetIntField(env, packet, portFieldId, ntohs(ip6addr->sin6_port));
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}
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}
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static void init_packet(JNIEnv* env, jobject packet, struct msghdr* msg, int len) {
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(*env)->SetIntField(env, packet, packetCountFieldId, len);
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init_packet_address(env, packet, (struct sockaddr_storage*) msg->msg_name, packetSenderAddrFieldId, packetSenderAddrLenFieldId, packetSenderScopeIdFieldId, packetSenderPortFieldId);
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struct cmsghdr *cmsg = NULL;
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uint16_t gso_size = 0;
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uint16_t *gsosizeptr = NULL;
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@ -421,8 +435,12 @@ static void init_packet(JNIEnv* env, jobject packet, struct msghdr* msg, int len
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if (cmsg->cmsg_level == SOL_UDP && cmsg->cmsg_type == UDP_GRO) {
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gsosizeptr = (uint16_t *) CMSG_DATA(cmsg);
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gso_size = *gsosizeptr;
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break;
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}
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#ifdef IP_RECVORIGDSTADDR
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else if (cmsg->cmsg_level == SOL_IP && cmsg->cmsg_type == IP_RECVORIGDSTADDR) {
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init_packet_address(env, packet, (struct sockaddr_storage*) CMSG_DATA(cmsg), packetRecipientAddrFieldId, packetRecipientAddrLenFieldId, packetRecipientScopeIdFieldId, packetRecipientPortFieldId);
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}
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#endif // IP_RECVORIGDSTADDR
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}
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(*env)->SetIntField(env, packet, packetSegmentSizeFieldId, gso_size);
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}
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@ -431,8 +449,8 @@ static jint netty_epoll_native_recvmsg0(JNIEnv* env, jclass clazz, jint fd, jboo
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struct msghdr msg = { 0 };
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struct sockaddr_storage sock_address;
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int addrSize = sizeof(sock_address);
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// Enough space for GRO
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char control[CMSG_SPACE(sizeof(uint16_t))] = { 0 };
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// Enough space for GRO and IP_RECVORIGDSTADDR
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char control[CMSG_SPACE(sizeof(uint16_t)) + sizeof(struct sockaddr_storage)] = { 0 };
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msg.msg_name = &sock_address;
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msg.msg_namelen = (socklen_t) addrSize;
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msg.msg_iov = (struct iovec*) (intptr_t) (*env)->GetLongField(env, packet, packetMemoryAddressFieldId);
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@ -458,6 +476,16 @@ static jint netty_epoll_native_recvmmsg0(JNIEnv* env, jclass clazz, jint fd, jbo
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struct sockaddr_storage addr[len];
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int addrSize = sizeof(addr);
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memset(addr, 0, addrSize);
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int storageSize = sizeof(struct sockaddr_storage);
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char* cntrlbuf = NULL;
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#ifdef IP_RECVORIGDSTADDR
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int readLocalAddr = 0;
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if (netty_unix_socket_getOption(env, fd, IPPROTO_IP, IP_RECVORIGDSTADDR,
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&readLocalAddr, sizeof(readLocalAddr)) < 0) {
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cntrlbuf = malloc(sizeof(char) * storageSize * len);
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}
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#endif // IP_RECVORIGDSTADDR
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int i;
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@ -468,6 +496,11 @@ static jint netty_epoll_native_recvmmsg0(JNIEnv* env, jclass clazz, jint fd, jbo
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msg[i].msg_hdr.msg_name = addr + i;
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msg[i].msg_hdr.msg_namelen = (socklen_t) addrSize;
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if (cntrlbuf != NULL) {
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msg[i].msg_hdr.msg_control = cntrlbuf + i * storageSize;
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msg[i].msg_hdr.msg_controllen = storageSize;
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}
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}
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ssize_t res;
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@ -479,15 +512,18 @@ static jint netty_epoll_native_recvmmsg0(JNIEnv* env, jclass clazz, jint fd, jbo
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// keep on reading if it was interrupted
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} while (res == -1 && ((err = errno) == EINTR));
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if (res >= 0) {
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for (i = 0; i < res; i++) {
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jobject packet = (*env)->GetObjectArrayElement(env, packets, i + offset);
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init_packet(env, packet, &msg[i].msg_hdr, msg[i].msg_len);
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}
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}
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// Free the control message buffer if needed.
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free(cntrlbuf);
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if (res < 0) {
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return -err;
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}
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for (i = 0; i < res; i++) {
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jobject packet = (*env)->GetObjectArrayElement(env, packets, i + offset);
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init_packet(env, packet, &msg[i].msg_hdr, msg[i].msg_len);
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}
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return (jint) res;
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}
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@ -735,11 +771,15 @@ static jint netty_epoll_native_JNI_OnLoad(JNIEnv* env, const char* packagePrefix
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NETTY_JNI_UTIL_FIND_CLASS(env, nativeDatagramPacketCls, nettyClassName, done);
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netty_jni_util_free_dynamic_name(&nettyClassName);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetAddrFieldId, "addr", "[B", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetAddrLenFieldId, "addrLen", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetSenderAddrFieldId, "senderAddr", "[B", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetSenderAddrLenFieldId, "senderAddrLen", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetSenderScopeIdFieldId, "senderScopeId", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetSenderPortFieldId, "senderPort", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetRecipientAddrFieldId, "recipientAddr", "[B", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetRecipientAddrLenFieldId, "recipientAddrLen", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetRecipientScopeIdFieldId, "recipientScopeId", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetRecipientPortFieldId, "recipientPort", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetSegmentSizeFieldId, "segmentSize", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetScopeIdFieldId, "scopeId", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetPortFieldId, "port", "I", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetMemoryAddressFieldId, "memoryAddress", "J", done);
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NETTY_JNI_UTIL_GET_FIELD(env, nativeDatagramPacketCls, packetCountFieldId, "count", "I", done);
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@ -763,11 +803,15 @@ done:
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if (linuxsocketOnLoadCalled == 1) {
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netty_epoll_linuxsocket_JNI_OnUnLoad(env, packagePrefix);
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}
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packetAddrFieldId = NULL;
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packetAddrLenFieldId = NULL;
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packetSenderAddrFieldId = NULL;
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packetSenderAddrLenFieldId = NULL;
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packetSenderScopeIdFieldId = NULL;
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packetSenderPortFieldId = NULL;
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packetRecipientAddrFieldId = NULL;
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packetRecipientAddrLenFieldId = NULL;
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packetRecipientScopeIdFieldId = NULL;
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packetRecipientPortFieldId = NULL;
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packetSegmentSizeFieldId = NULL;
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packetScopeIdFieldId = NULL;
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packetPortFieldId = NULL;
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packetMemoryAddressFieldId = NULL;
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packetCountFieldId = NULL;
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}
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@ -790,11 +834,15 @@ static void netty_epoll_native_JNI_OnUnload(JNIEnv* env) {
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staticPackagePrefix = NULL;
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}
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packetAddrFieldId = NULL;
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packetAddrLenFieldId = NULL;
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packetSenderAddrFieldId = NULL;
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packetSenderAddrLenFieldId = NULL;
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packetSenderScopeIdFieldId = NULL;
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packetSenderPortFieldId = NULL;
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packetRecipientAddrFieldId = NULL;
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packetRecipientAddrLenFieldId = NULL;
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packetRecipientScopeIdFieldId = NULL;
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packetRecipientPortFieldId = NULL;
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packetSegmentSizeFieldId = NULL;
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packetScopeIdFieldId = NULL;
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packetPortFieldId = NULL;
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packetMemoryAddressFieldId = NULL;
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packetCountFieldId = NULL;
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}
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@ -142,6 +142,18 @@ final class NativeDatagramPacketArray {
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}
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}
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private static InetSocketAddress newAddress(byte[] addr, int addrLen, int port, int scopeId, byte[] ipv4Bytes)
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throws UnknownHostException {
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final InetAddress address;
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if (addrLen == ipv4Bytes.length) {
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System.arraycopy(addr, 0, ipv4Bytes, 0, addrLen);
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address = InetAddress.getByAddress(ipv4Bytes);
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} else {
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address = Inet6Address.getByAddress(null, addr, scopeId);
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}
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return new InetSocketAddress(address, port);
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}
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/**
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* Used to pass needed data to JNI.
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*/
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@ -152,45 +164,50 @@ final class NativeDatagramPacketArray {
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private long memoryAddress;
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private int count;
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private final byte[] addr = new byte[16];
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private final byte[] senderAddr = new byte[16];
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private int senderAddrLen;
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private int senderScopeId;
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private int senderPort;
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private final byte[] recipientAddr = new byte[16];
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private int recipientAddrLen;
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private int recipientScopeId;
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private int recipientPort;
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private int segmentSize;
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private int addrLen;
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private int scopeId;
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private int port;
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private void init(long memoryAddress, int count, int segmentSize, InetSocketAddress recipient) {
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this.memoryAddress = memoryAddress;
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this.count = count;
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this.segmentSize = segmentSize;
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this.senderScopeId = 0;
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this.senderPort = 0;
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this.senderAddrLen = 0;
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if (recipient == null) {
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this.scopeId = 0;
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this.port = 0;
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this.addrLen = 0;
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this.recipientScopeId = 0;
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this.recipientPort = 0;
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this.recipientAddrLen = 0;
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} else {
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InetAddress address = recipient.getAddress();
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if (address instanceof Inet6Address) {
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System.arraycopy(address.getAddress(), 0, addr, 0, addr.length);
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scopeId = ((Inet6Address) address).getScopeId();
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System.arraycopy(address.getAddress(), 0, recipientAddr, 0, recipientAddr.length);
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recipientScopeId = ((Inet6Address) address).getScopeId();
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} else {
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copyIpv4MappedIpv6Address(address.getAddress(), addr);
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scopeId = 0;
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copyIpv4MappedIpv6Address(address.getAddress(), recipientAddr);
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recipientScopeId = 0;
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}
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addrLen = addr.length;
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port = recipient.getPort();
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recipientAddrLen = recipientAddr.length;
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recipientPort = recipient.getPort();
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}
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}
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DatagramPacket newDatagramPacket(ByteBuf buffer, InetSocketAddress recipient) throws UnknownHostException {
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final InetAddress address;
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if (addrLen == ipv4Bytes.length) {
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System.arraycopy(addr, 0, ipv4Bytes, 0, addrLen);
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address = InetAddress.getByAddress(ipv4Bytes);
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} else {
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address = Inet6Address.getByAddress(null, addr, scopeId);
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InetSocketAddress sender = newAddress(senderAddr, senderAddrLen, senderPort, senderScopeId, ipv4Bytes);
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if (recipientAddrLen != 0) {
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recipient = newAddress(recipientAddr, recipientAddrLen, recipientPort, recipientScopeId, ipv4Bytes);
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}
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InetSocketAddress sender = new InetSocketAddress(address, port);
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buffer.writerIndex(count);
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// UDP_GRO
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@ -339,43 +339,9 @@ static jobject _recvFrom(JNIEnv* env, jint fd, void* buffer, jint pos, jint limi
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socklen_t addrlen = sizeof(addr);
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ssize_t res;
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int err;
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jobject local = NULL;
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#ifdef IP_RECVORIGDSTADDR
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struct sockaddr_storage daddr;
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struct iovec iov;
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struct cmsghdr* cmsg;
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struct msghdr msg;
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char cntrlbuf[64];
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int readLocalAddr;
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if (netty_unix_socket_getOption(env, fd, IPPROTO_IP, IP_RECVORIGDSTADDR,
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&readLocalAddr, sizeof(readLocalAddr)) < 0) {
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readLocalAddr = 0;
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}
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if (readLocalAddr) {
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iov.iov_base = buffer + pos;
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iov.iov_len = (size_t) (limit - pos);
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msg.msg_name = (struct sockaddr*) &addr;
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msg.msg_namelen = addrlen;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_control = cntrlbuf;
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msg.msg_controllen = sizeof(cntrlbuf);
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}
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#endif
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do {
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#ifdef IP_RECVORIGDSTADDR
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if (readLocalAddr) {
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res = recvmsg(fd, &msg, 0);
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} else {
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#endif
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res = recvfrom(fd, buffer + pos, (size_t) (limit - pos), 0, (struct sockaddr*) &addr, &addrlen);
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#ifdef IP_RECVORIGDSTADDR
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}
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#endif
|
||||
res = recvfrom(fd, buffer + pos, (size_t) (limit - pos), 0, (struct sockaddr*) &addr, &addrlen);
|
||||
// Keep on reading if we was interrupted
|
||||
} while (res == -1 && ((err = errno) == EINTR));
|
||||
|
||||
@ -396,24 +362,7 @@ static jobject _recvFrom(JNIEnv* env, jint fd, void* buffer, jint pos, jint limi
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#ifdef IP_RECVORIGDSTADDR
|
||||
#if !defined(SOL_IP) && defined(IPPROTO_IP)
|
||||
#define SOL_IP IPPROTO_IP
|
||||
#endif /* !SOL_IP && IPPROTO_IP */
|
||||
if (readLocalAddr) {
|
||||
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
|
||||
if (cmsg->cmsg_level == SOL_IP && cmsg->cmsg_type == IP_RECVORIGDSTADDR) {
|
||||
memcpy (&daddr, CMSG_DATA(cmsg), sizeof (struct sockaddr_storage));
|
||||
local = createDatagramSocketAddress(env, &daddr, res, NULL);
|
||||
if (local == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
return createDatagramSocketAddress(env, &addr, res, local);
|
||||
return createDatagramSocketAddress(env, &addr, res, NULL);
|
||||
}
|
||||
|
||||
void netty_unix_socket_getOptionHandleError(JNIEnv* env, int err) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user