fix: check the compatibility of client version and server version

include/common/tmsg.h

@@ -612,6 +612,7 @@ typedef struct {
   char    user[TSDB_USER_LEN];
   char    passwd[TSDB_PASSWORD_LEN];
   int64_t startTime;
+  char    sVer[TSDB_VERSION_LEN];
 } SConnectReq;
 
 int32_t tSerializeSConnectReq(void* buf, int32_t bufLen, SConnectReq* pReq);

include/util/tversion.h

@@ -13,8 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _TD_UTIL_VERSION_H_
+#ifndef _TD_UTIL_TVERSION_H_
-#define _TD_UTIL_VERSION_H_
+#define _TD_UTIL_TVERSION_H_
 
 #include "os.h"
 
@@ -25,9 +25,11 @@ extern "C" {
 int32_t taosVersionStrToInt(const char *vstr, int32_t *vint);
 int32_t taosVersionIntToStr(int32_t vint, char *vstr, int32_t len);
 int32_t taosCheckVersionCompatible(int32_t clientVer, int32_t serverVer, int32_t comparedSegments);
+int32_t taosCheckVersionCompatibleFromStr(const char *pClientVersion, const char *pServerVersion,
+                                          int32_t comparedSegments);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /*_TD_UTIL_VERSION_H_*/
+#endif /*_TD_UTIL_TVERSION_H_*/

source/client/src/clientImpl.c

@@ -1307,6 +1307,7 @@ static SMsgSendInfo* buildConnectMsg(SRequestObj* pRequest) {
   tstrncpy(connectReq.app, appInfo.appName, sizeof(connectReq.app));
   tstrncpy(connectReq.user, pObj->user, sizeof(connectReq.user));
   tstrncpy(connectReq.passwd, pObj->pass, sizeof(connectReq.passwd));
+  tstrncpy(connectReq.sVer, version, sizeof(connectReq.sVer));
 
   int32_t contLen = tSerializeSConnectReq(NULL, 0, &connectReq);
   void*   pReq = taosMemoryMalloc(contLen);

source/client/src/clientMsgHandler.c

@@ -18,10 +18,12 @@
 #include "clientLog.h"
 #include "os.h"
 #include "query.h"
-#include "tdef.h"
-#include "tname.h"
-#include "tdatablock.h"
 #include "systable.h"
+#include "tdatablock.h"
+#include "tdef.h"
+#include "tglobal.h"
+#include "tname.h"
+#include "tversion.h"
 
 static void setErrno(SRequestObj* pRequest, int32_t code) {
   pRequest->code = code;
@@ -74,6 +76,12 @@ int32_t processConnectRsp(void* param, SDataBuf* pMsg, int32_t code) {
     goto End;
   }
 
+  if ((code = taosCheckVersionCompatibleFromStr(version, connectRsp.sVer, 2)) != 0) {
+    setErrno(pRequest, code);
+    tsem_post(&pRequest->body.rspSem);
+    goto End;
+  }
+
   int32_t now = taosGetTimestampSec();
   int32_t delta = abs(now - connectRsp.svrTimestamp);
   if (delta > timestampDeltaLimit) {
@@ -475,7 +483,8 @@ static int32_t buildShowVariablesRsp(SArray* pVars, SRetrieveTableRsp** pRsp) {
   blockDataDestroy(pBlock);
 
   if (len != rspSize - sizeof(SRetrieveTableRsp)) {
-    uError("buildShowVariablesRsp error, len:%d != rspSize - sizeof(SRetrieveTableRsp):%" PRIu64, len, (uint64_t) (rspSize - sizeof(SRetrieveTableRsp)));
+    uError("buildShowVariablesRsp error, len:%d != rspSize - sizeof(SRetrieveTableRsp):%" PRIu64, len,
+           (uint64_t)(rspSize - sizeof(SRetrieveTableRsp)));
     return TSDB_CODE_TSC_INVALID_INPUT;
   }
 

source/common/src/tmsg.c

@@ -3741,6 +3741,7 @@ int32_t tSerializeSConnectReq(void *buf, int32_t bufLen, SConnectReq *pReq) {
   if (tEncodeCStr(&encoder, pReq->user) < 0) return -1;
   if (tEncodeCStrWithLen(&encoder, pReq->passwd, TSDB_PASSWORD_LEN) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->startTime) < 0) return -1;
+  if (tEncodeCStr(&encoder, pReq->sVer) < 0) return -1;
   tEndEncode(&encoder);
 
   int32_t tlen = encoder.pos;
@@ -3760,6 +3761,12 @@ int32_t tDeserializeSConnectReq(void *buf, int32_t bufLen, SConnectReq *pReq) {
   if (tDecodeCStrTo(&decoder, pReq->user) < 0) return -1;
   if (tDecodeCStrTo(&decoder, pReq->passwd) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->startTime) < 0) return -1;
+  // Check the client version from version 3.0.3.0
+  if (tDecodeIsEnd(&decoder)) {
+    tDecoderClear(&decoder);
+    return TSDB_CODE_VERSION_NOT_COMPATIBLE;
+  }
+  if (tDecodeCStrTo(&decoder, pReq->sVer) < 0) return -1;
   tEndDecode(&decoder);
 
   tDecoderClear(&decoder);

source/dnode/mnode/impl/src/mndProfile.c

@@ -24,7 +24,7 @@
 #include "mndStb.h"
 #include "mndUser.h"
 #include "tglobal.h"
-#include "version.h"
+#include "tversion.h"
 
 typedef struct {
   uint32_t id;
@@ -221,8 +221,13 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
   char            ip[24] = {0};
   const STraceId *trace = &pReq->info.traceId;
 
-  if (tDeserializeSConnectReq(pReq->pCont, pReq->contLen, &connReq) != 0) {
+  if ((code = tDeserializeSConnectReq(pReq->pCont, pReq->contLen, &connReq)) != 0) {
-    terrno = TSDB_CODE_INVALID_MSG;
+    terrno = (-1 == code ? TSDB_CODE_INVALID_MSG : code);
+    goto _OVER;
+  }
+
+  if ((code = taosCheckVersionCompatibleFromStr(connReq.sVer, version, 2)) != 0) {
+    terrno = code;
     goto _OVER;
   }
 

source/util/src/tversion.c

@@ -89,3 +89,20 @@ int32_t taosCheckVersionCompatible(int32_t clientVer, int32_t serverVer, int32_t
     return -1;
   }
 }
+
+int32_t taosCheckVersionCompatibleFromStr(const char *pClientVersion, const char *pServerVersion,
+                                          int32_t comparedSegments) {
+  int32_t clientVersion = 0;
+  int32_t serverVersion = 0;
+  int32_t code = taosVersionStrToInt(pClientVersion, &clientVersion);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = taosVersionStrToInt(pServerVersion, &serverVersion);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = taosCheckVersionCompatible(clientVersion, serverVersion, comparedSegments);
+  }
+  if (TSDB_CODE_SUCCESS != code) {
+    code = terrno;
+  }
+  return code;
+}