enh(rpc): taosd exited when fqdn is configed to invalid

include/libs/transport/trpc.h

@@ -68,6 +68,7 @@ typedef int (*RpcAfp)(void *parent, char *tableId, char *spi, char *encrypt, cha
 typedef bool (*RpcRfp)(int32_t code);
 
 typedef struct SRpcInit {
+  char     localFqdn[TSDB_FQDN_LEN];
   uint16_t localPort;     // local port
   char *   label;         // for debug purpose
   int      numOfThreads;  // number of threads to handle connections

include/os/osSocket.h

@@ -161,6 +161,7 @@ int taosCreateSocketWithTimeOutOpt(uint32_t conn_timeout_sec);
 
 TdSocketPtr       taosOpenUdpSocket(uint32_t localIp, uint16_t localPort);
 TdSocketPtr       taosOpenTcpClientSocket(uint32_t ip, uint16_t port, uint32_t localIp);
+bool              taosValidIpAndPort(uint32_t ip, uint16_t port);
 TdSocketServerPtr taosOpenTcpServerSocket(uint32_t ip, uint16_t port);
 int32_t           taosKeepTcpAlive(TdSocketPtr pSocket);
 TdSocketPtr       taosAcceptTcpConnectSocket(TdSocketServerPtr pServerSocket, struct sockaddr *destAddr, int *addrLen);

source/dnode/mgmt/implement/src/dmTransport.c

@@ -16,8 +16,8 @@
 #define _DEFAULT_SOURCE
 #include "dmImp.h"
 
-#define INTERNAL_USER "_dnd"
-#define INTERNAL_CKEY "_key"
+#define INTERNAL_USER   "_dnd"
+#define INTERNAL_CKEY   "_key"
 #define INTERNAL_SECRET "_pwd"
 
 static void dmGetMnodeEpSet(SDnode *pDnode, SEpSet *pEpSet) {
@@ -130,10 +130,10 @@ _OVER:
 }
 
 static void dmProcessMsg(SDnode *pDnode, SRpcMsg *pMsg, SEpSet *pEpSet) {
-  SDnodeTrans  *pTrans = &pDnode->trans;
+  SDnodeTrans * pTrans = &pDnode->trans;
   tmsg_t        msgType = pMsg->msgType;
   bool          isReq = msgType & 1u;
-  SMsgHandle   *pHandle = &pTrans->msgHandles[TMSG_INDEX(msgType)];
+  SMsgHandle *  pHandle = &pTrans->msgHandles[TMSG_INDEX(msgType)];
   SMgmtWrapper *pWrapper = pHandle->pNdWrapper;
 
   if (msgType == TDMT_DND_SERVER_STATUS) {
@@ -517,7 +517,7 @@ static inline int32_t dmRetrieveUserAuthInfo(SDnode *pDnode, char *user, char *s
   SAuthReq authReq = {0};
   tstrncpy(authReq.user, user, TSDB_USER_LEN);
   int32_t contLen = tSerializeSAuthReq(NULL, 0, &authReq);
-  void   *pReq = rpcMallocCont(contLen);
+  void *  pReq = rpcMallocCont(contLen);
   tSerializeSAuthReq(pReq, contLen, &authReq);
 
   SRpcMsg rpcMsg = {.pCont = pReq, .contLen = contLen, .msgType = TDMT_MND_AUTH, .ahandle = (void *)9528};
@@ -547,6 +547,8 @@ static int32_t dmInitServer(SDnode *pDnode) {
   SDnodeTrans *pTrans = &pDnode->trans;
 
   SRpcInit rpcInit = {0};
+
+  strncpy(rpcInit.localFqdn, pDnode->data.localFqdn, strlen(pDnode->data.localFqdn));
   rpcInit.localPort = pDnode->data.serverPort;
   rpcInit.label = "DND";
   rpcInit.numOfThreads = tsNumOfRpcThreads;

source/libs/transport/src/trans.c

@@ -46,9 +46,20 @@ void* rpcOpen(const SRpcInit* pInit) {
     pRpc->numOfThreads = pInit->numOfThreads > TSDB_MAX_RPC_THREADS ? TSDB_MAX_RPC_THREADS : pInit->numOfThreads;
   }
 
+  uint32_t ip = 0;
+  if (pInit->connType == TAOS_CONN_SERVER) {
+    ip = taosGetIpv4FromFqdn(pInit->localFqdn);
+    if (ip == 0xFFFFFFFF) {
+      tError("invalid fqdn: %s", pInit->localFqdn);
+      taosMemoryFree(pRpc);
+      return NULL;
+    }
+  }
+
   pRpc->connType = pInit->connType;
   pRpc->idleTime = pInit->idleTime;
-  pRpc->tcphandle = (*taosInitHandle[pRpc->connType])(0, pInit->localPort, pRpc->label, pRpc->numOfThreads, NULL, pRpc);
+  pRpc->tcphandle =
+      (*taosInitHandle[pRpc->connType])(ip, pInit->localPort, pRpc->label, pRpc->numOfThreads, NULL, pRpc);
   if (pRpc->tcphandle == NULL) {
     taosMemoryFree(pRpc);
     return NULL;

source/libs/transport/src/transSrv.c

@@ -817,7 +817,6 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
 
     srv->pipe[i] = (uv_pipe_t*)taosMemoryCalloc(2, sizeof(uv_pipe_t));
 
-
     uv_os_sock_t fds[2];
     if (uv_socketpair(SOCK_STREAM, 0, fds, UV_NONBLOCK_PIPE, UV_NONBLOCK_PIPE) != 0) {
       goto End;
@@ -841,6 +840,10 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
       goto End;
     }
   }
+  if (false == taosValidIpAndPort(srv->ip, srv->port)) {
+    tError("failed to bind, reason: %s", strerror(errno));
+    goto End;
+  }
   if (false == addHandleToAcceptloop(srv)) {
     goto End;
   }

source/os/src/osSocket.c

@@ -638,6 +638,48 @@ int32_t taosKeepTcpAlive(TdSocketPtr pSocket) {
   return 0;
 }
 
+bool taosValidIpAndPort(uint32_t ip, uint16_t port) {
+  struct sockaddr_in serverAdd;
+  SocketFd           fd;
+  int32_t            reuse;
+
+  // printf("open tcp server socket:0x%x:%hu", ip, port);
+
+  bzero((char *)&serverAdd, sizeof(serverAdd));
+  serverAdd.sin_family = AF_INET;
+  serverAdd.sin_addr.s_addr = ip;
+  serverAdd.sin_port = (uint16_t)htons(port);
+
+  if ((fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) <= 2) {
+    // printf("failed to open TCP socket: %d (%s)", errno, strerror(errno));
+    taosCloseSocketNoCheck1(fd);
+    return false;
+  }
+
+  TdSocketPtr pSocket = (TdSocketPtr)taosMemoryMalloc(sizeof(TdSocket));
+  if (pSocket == NULL) {
+    taosCloseSocketNoCheck1(fd);
+    return false;
+  }
+  pSocket->refId = 0;
+  pSocket->fd = fd;
+
+  /* set REUSEADDR option, so the portnumber can be re-used */
+  reuse = 1;
+  if (taosSetSockOpt(pSocket, SOL_SOCKET, SO_REUSEADDR, (void *)&reuse, sizeof(reuse)) < 0) {
+    // printf("setsockopt SO_REUSEADDR failed: %d (%s)", errno, strerror(errno));
+    taosCloseSocket(&pSocket);
+    return NULL;
+  }
+  /* bind socket to server address */
+  if (bind(pSocket->fd, (struct sockaddr *)&serverAdd, sizeof(serverAdd)) < 0) {
+    // printf("bind tcp server socket failed, 0x%x:%hu(%s)", ip, port, strerror(errno));
+    taosCloseSocket(&pSocket);
+    return false;
+  }
+  taosCloseSocket(&pSocket);
+  return true;
+}
 TdSocketServerPtr taosOpenTcpServerSocket(uint32_t ip, uint16_t port) {
   struct sockaddr_in serverAdd;
   SocketFd           fd;