check user auth

include/common/tmsg.h

@@ -135,7 +135,7 @@ typedef enum _mgmt_table {
 #define TSDB_ALTER_USER_CLEAR_READ_DB 0x5
 #define TSDB_ALTER_USER_ADD_WRITE_DB 0x6
 #define TSDB_ALTER_USER_REMOVE_WRITE_DB 0x7
-#define TSDB_ALTER_USER_CLEAR_WRITE_DB 0x7
+#define TSDB_ALTER_USER_CLEAR_WRITE_DB 0x8
 
 #define TSDB_ALTER_USER_PRIVILEGES 0x2
 

source/dnode/mnode/impl/inc/mndAuth.h

@@ -25,6 +25,10 @@ extern "C" {
 int32_t mndInitAuth(SMnode *pMnode);
 void    mndCleanupAuth(SMnode *pMnode);
 
+int32_t mndCheckCreateUserAuth(SUserObj *pOperUser);
+int32_t mndCheckAlterUserAuth(SUserObj *pOperUser, SUserObj *pUser, SDbObj *pDb, SAlterUserReq *pAlter);
+int32_t mndCheckDropUserAuth(SUserObj *pOperUser);
+
 #ifdef __cplusplus
 }
 #endif

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

@@ -57,3 +57,56 @@ static int32_t mndProcessAuthReq(SMnodeMsg *pReq) {
   mTrace("user:%s, auth req received, spi:%d encrypt:%d ruser:%s", pReq->user, pAuth->spi, pAuth->encrypt, pAuth->user);
   return code;
 }
+
+int32_t mndCheckCreateUserAuth(SUserObj *pOperUser) {
+  if (pOperUser->superUser) {
+    return 0;
+  }
+
+  terrno = TSDB_CODE_MND_NO_RIGHTS;
+  return -1;
+}
+
+int32_t mndCheckAlterUserAuth(SUserObj *pOperUser, SUserObj *pUser, SDbObj *pDb, SAlterUserReq *pAlter) {
+  if (pAlter->alterType == TSDB_ALTER_USER_PASSWD) {
+    if (pOperUser->superUser || strcmp(pUser->user, pOperUser->user) == 0) {
+      return 0;
+    }
+  }
+
+  if (pAlter->alterType == TSDB_ALTER_USER_SUPERUSER) {
+    if (strcmp(pUser->user, TSDB_DEFAULT_USER) == 0) {
+      terrno = TSDB_CODE_MND_NO_RIGHTS;
+      return -1;
+    }
+
+    if (pOperUser->superUser) {
+      return 0;
+    }
+  }
+
+    if (pAlter->alterType == TSDB_ALTER_USER_CLEAR_WRITE_DB || pAlter->alterType == TSDB_ALTER_USER_CLEAR_READ_DB) {
+      if (pOperUser->superUser) {
+        return 0;
+      }
+    }
+
+  if (pAlter->alterType == TSDB_ALTER_USER_ADD_READ_DB || pAlter->alterType == TSDB_ALTER_USER_REMOVE_READ_DB ||
+      pAlter->alterType == TSDB_ALTER_USER_ADD_WRITE_DB || pAlter->alterType == TSDB_ALTER_USER_REMOVE_WRITE_DB) {
+    if (pOperUser->superUser || strcmp(pUser->user, pDb->createUser) == 0) {
+      return 0;
+    }
+  }
+
+  terrno = TSDB_CODE_MND_NO_RIGHTS;
+  return -1;
+}
+
+int32_t mndCheckDropUserAuth(SUserObj *pOperUser) {
+  if (pOperUser->superUser) {
+    return 0;
+  }
+
+  terrno = TSDB_CODE_MND_NO_RIGHTS;
+  return -1;
+}
\ No newline at end of file

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

@@ -15,6 +15,7 @@
 
 #define _DEFAULT_SOURCE
 #include "mndUser.h"
+#include "mndAuth.h"
 #include "mndDb.h"
 #include "mndShow.h"
 #include "mndTrans.h"
@@ -29,7 +30,7 @@ static SSdbRow *mndUserActionDecode(SSdbRaw *pRaw);
 static int32_t  mndUserActionInsert(SSdb *pSdb, SUserObj *pUser);
 static int32_t  mndUserActionDelete(SSdb *pSdb, SUserObj *pUser);
 static int32_t  mndUserActionUpdate(SSdb *pSdb, SUserObj *pOld, SUserObj *pNew);
-static int32_t  mndCreateUser(SMnode *pMnode, char *acct, char *user, char *pass, SMnodeMsg *pReq);
+static int32_t  mndCreateUser(SMnode *pMnode, char *acct, SCreateUserReq *pCreate, SMnodeMsg *pReq);
 static int32_t  mndProcessCreateUserReq(SMnodeMsg *pReq);
 static int32_t  mndProcessAlterUserReq(SMnodeMsg *pReq);
 static int32_t  mndProcessDropUserReq(SMnodeMsg *pReq);
@@ -96,7 +97,11 @@ static int32_t mndCreateDefaultUsers(SMnode *pMnode) {
 static SSdbRaw *mndUserActionEncode(SUserObj *pUser) {
   terrno = TSDB_CODE_OUT_OF_MEMORY;
 
-  SSdbRaw *pRaw = sdbAllocRaw(SDB_USER, TSDB_USER_VER_NUMBER, sizeof(SUserObj) + TSDB_USER_RESERVE_SIZE);
+  int32_t numOfReadDbs = taosHashGetSize(pUser->readDbs);
+  int32_t numOfWriteDbs = taosHashGetSize(pUser->writeDbs);
+  int32_t size = sizeof(SUserObj) + TSDB_USER_RESERVE_SIZE + (numOfReadDbs + numOfWriteDbs) * TSDB_DB_FNAME_LEN;
+
+  SSdbRaw *pRaw = sdbAllocRaw(SDB_USER, TSDB_USER_VER_NUMBER, size);
   if (pRaw == NULL) goto USER_ENCODE_OVER;
 
   int32_t dataPos = 0;
@@ -106,9 +111,6 @@ static SSdbRaw *mndUserActionEncode(SUserObj *pUser) {
   SDB_SET_INT64(pRaw, dataPos, pUser->createdTime, USER_ENCODE_OVER)
   SDB_SET_INT64(pRaw, dataPos, pUser->updateTime, USER_ENCODE_OVER)
   SDB_SET_INT8(pRaw, dataPos, pUser->superUser, USER_ENCODE_OVER)
-
-  int32_t numOfReadDbs = taosHashGetSize(pUser->readDbs);
-  int32_t numOfWriteDbs = taosHashGetSize(pUser->writeDbs);
   SDB_SET_INT32(pRaw, dataPos, numOfReadDbs, USER_ENCODE_OVER)
   SDB_SET_INT32(pRaw, dataPos, numOfWriteDbs, USER_ENCODE_OVER)
 
@@ -257,21 +259,21 @@ void mndReleaseUser(SMnode *pMnode, SUserObj *pUser) {
   sdbRelease(pSdb, pUser);
 }
 
-static int32_t mndCreateUser(SMnode *pMnode, char *acct, char *user, char *pass, SMnodeMsg *pReq) {
+static int32_t mndCreateUser(SMnode *pMnode, char *acct, SCreateUserReq *pCreate, SMnodeMsg *pReq) {
   SUserObj userObj = {0};
-  taosEncryptPass_c((uint8_t *)pass, strlen(pass), userObj.pass);
-  tstrncpy(userObj.user, user, TSDB_USER_LEN);
+  taosEncryptPass_c((uint8_t *)pCreate->pass, strlen(pCreate->pass), userObj.pass);
+  tstrncpy(userObj.user, pCreate->user, TSDB_USER_LEN);
   tstrncpy(userObj.acct, acct, TSDB_USER_LEN);
   userObj.createdTime = taosGetTimestampMs();
   userObj.updateTime = userObj.createdTime;
-  userObj.superUser = 0;
+  userObj.superUser = pCreate->superUser;
 
   STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, &pReq->rpcMsg);
   if (pTrans == NULL) {
-    mError("user:%s, failed to create since %s", user, terrstr());
+    mError("user:%s, failed to create since %s", pCreate->user, terrstr());
     return -1;
   }
-  mDebug("trans:%d, used to create user:%s", pTrans->id, user);
+  mDebug("trans:%d, used to create user:%s", pTrans->id, pCreate->user);
 
   SSdbRaw *pRedoRaw = mndUserActionEncode(&userObj);
   if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
@@ -324,7 +326,11 @@ static int32_t mndProcessCreateUserReq(SMnodeMsg *pReq) {
     goto CREATE_USER_OVER;
   }
 
-  code = mndCreateUser(pMnode, pOperUser->acct, createReq.user, createReq.pass, pReq);
+  if (mndCheckCreateUserAuth(pOperUser) != 0) {
+    goto CREATE_USER_OVER;
+  }
+
+  code = mndCreateUser(pMnode, pOperUser->acct, &createReq, pReq);
   if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
 
 CREATE_USER_OVER:
@@ -391,6 +397,7 @@ static int32_t mndProcessAlterUserReq(SMnodeMsg *pReq) {
   int32_t       code = -1;
   SUserObj     *pUser = NULL;
   SUserObj     *pOperUser = NULL;
+  SUserObj      newUser = {0};
   SAlterUserReq alterReq = {0};
 
   if (tDeserializeSAlterUserReq(pReq->rpcMsg.pCont, &alterReq) == NULL) goto ALTER_USER_OVER;
@@ -419,7 +426,6 @@ static int32_t mndProcessAlterUserReq(SMnodeMsg *pReq) {
     goto ALTER_USER_OVER;
   }
 
-  SUserObj newUser = {0};
   memcpy(&newUser, pUser, sizeof(SUserObj));
   newUser.readDbs = mndDupDbHash(pUser->readDbs);
   newUser.writeDbs = mndDupDbHash(pUser->writeDbs);
@@ -476,17 +482,22 @@ static int32_t mndProcessAlterUserReq(SMnodeMsg *pReq) {
 
   newUser.updateTime = taosGetTimestampMs();
 
+  if (mndCheckAlterUserAuth(pOperUser, pUser, pDb, &alterReq) != 0) {
+    goto ALTER_USER_OVER;
+  }
+
   code = mndUpdateUser(pMnode, pUser, &newUser, pReq);
   if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
 
 ALTER_USER_OVER:
-
   if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
     mError("user:%s, failed to alter since %s", alterReq.user, terrstr());
   }
 
   mndReleaseUser(pMnode, pOperUser);
   mndReleaseUser(pMnode, pUser);
+  taosHashCleanup(newUser.writeDbs);
+  taosHashCleanup(newUser.readDbs);
 
   return code;
 }
@@ -545,6 +556,10 @@ static int32_t mndProcessDropUserReq(SMnodeMsg *pReq) {
     goto DROP_USER_OVER;
   }
 
+  if (mndCheckDropUserAuth(pOperUser) != 0) {
+    goto DROP_USER_OVER;
+  }
+
   code = mndDropUser(pMnode, pReq, pUser);
   if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
 

source/dnode/mnode/impl/test/user/user.cpp

@@ -102,16 +102,108 @@ TEST_F(MndTestUser, 02_Create_User) {
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_USER, pReq, contLen);
     ASSERT_NE(pRsp, nullptr);
     ASSERT_EQ(pRsp->code, 0);
+
+    test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
+    test.SendShowRetrieveReq();
+    EXPECT_EQ(test.GetShowRows(), 2);
+
+    CheckBinary("u1", TSDB_USER_LEN);
+    CheckBinary("root", TSDB_USER_LEN);
+    CheckBinary("normal", 10);
+    CheckBinary("super", 10);
+    CheckTimestamp();
+    CheckTimestamp();
+    CheckBinary("root", TSDB_USER_LEN);
+    CheckBinary("root", TSDB_USER_LEN);
   }
 
+  {
+    SDropUserReq dropReq = {0};
+    strcpy(dropReq.user, "u1");
+
+    int32_t contLen = tSerializeSDropUserReq(NULL, &dropReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSDropUserReq(&pBuf, &dropReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_DROP_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+
     test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
-  CHECK_META("show users", 4);
+    test.SendShowRetrieveReq();
+    EXPECT_EQ(test.GetShowRows(), 1);
+  }
+
+  {
+    SCreateUserReq createReq = {0};
+    strcpy(createReq.user, "u2");
+    strcpy(createReq.pass, "p1");
+    createReq.superUser = 1;
+
+    int32_t contLen = tSerializeSCreateUserReq(NULL, &createReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSCreateUserReq(&pBuf, &createReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
 
+    test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
     test.SendShowRetrieveReq();
     EXPECT_EQ(test.GetShowRows(), 2);
+
+    CheckBinary("root", TSDB_USER_LEN);
+    CheckBinary("u2", TSDB_USER_LEN);
+    CheckBinary("super", 10);
+    CheckBinary("super", 10);
+    CheckTimestamp();
+    CheckTimestamp();
+    CheckBinary("root", TSDB_USER_LEN);
+    CheckBinary("root", TSDB_USER_LEN);
+  }
+
+  {
+    SDropUserReq dropReq = {0};
+    strcpy(dropReq.user, "u2");
+
+    int32_t contLen = tSerializeSDropUserReq(NULL, &dropReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSDropUserReq(&pBuf, &dropReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_DROP_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+
+    test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
+    test.SendShowRetrieveReq();
+    EXPECT_EQ(test.GetShowRows(), 1);
+  }
 }
 
 TEST_F(MndTestUser, 03_Alter_User) {
+  {
+    SCreateUserReq createReq = {0};
+    strcpy(createReq.user, "u3");
+    strcpy(createReq.pass, "p1");
+    createReq.superUser = 1;
+
+    int32_t contLen = tSerializeSCreateUserReq(NULL, &createReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSCreateUserReq(&pBuf, &createReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+
+    test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
+    test.SendShowRetrieveReq();
+    EXPECT_EQ(test.GetShowRows(), 2);
+  }
+
   {
     SAlterUserReq alterReq = {0};
     alterReq.alterType = TSDB_ALTER_USER_PASSWD;
@@ -131,7 +223,7 @@ TEST_F(MndTestUser, 03_Alter_User) {
   {
     SAlterUserReq alterReq = {0};
     alterReq.alterType = TSDB_ALTER_USER_PASSWD;
-    strcpy(alterReq.user, "u1");
+    strcpy(alterReq.user, "u3");
     strcpy(alterReq.pass, "");
 
     int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
@@ -163,7 +255,40 @@ TEST_F(MndTestUser, 03_Alter_User) {
   {
     SAlterUserReq alterReq = {0};
     alterReq.alterType = TSDB_ALTER_USER_PASSWD;
-    strcpy(alterReq.user, "u1");
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_SUPERUSER;
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+    alterReq.superUser = 1;
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_CLEAR_WRITE_DB;
+    strcpy(alterReq.user, "u3");
     strcpy(alterReq.pass, "1");
 
     int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
@@ -175,9 +300,141 @@ TEST_F(MndTestUser, 03_Alter_User) {
     ASSERT_NE(pRsp, nullptr);
     ASSERT_EQ(pRsp->code, 0);
   }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_CLEAR_READ_DB;
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_ADD_READ_DB;
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+    strcpy(alterReq.dbname, "d1");
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, TSDB_CODE_MND_DB_NOT_EXIST);
+  }
+
+  {
+    int32_t contLen = sizeof(SCreateDbReq);
+
+    SCreateDbReq* pReq = (SCreateDbReq*)rpcMallocCont(contLen);
+    strcpy(pReq->db, "1.d2");
+    pReq->numOfVgroups = htonl(2);
+    pReq->cacheBlockSize = htonl(16);
+    pReq->totalBlocks = htonl(10);
+    pReq->daysPerFile = htonl(10);
+    pReq->daysToKeep0 = htonl(3650);
+    pReq->daysToKeep1 = htonl(3650);
+    pReq->daysToKeep2 = htonl(3650);
+    pReq->minRows = htonl(100);
+    pReq->maxRows = htonl(4096);
+    pReq->commitTime = htonl(3600);
+    pReq->fsyncPeriod = htonl(3000);
+    pReq->walLevel = 1;
+    pReq->precision = 0;
+    pReq->compression = 2;
+    pReq->replications = 1;
+    pReq->quorum = 1;
+    pReq->update = 0;
+    pReq->cacheLastRow = 0;
+    pReq->ignoreExist = 1;
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_DB, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_ADD_READ_DB;
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+    strcpy(alterReq.dbname, "1.d2");
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_ADD_READ_DB;
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+    strcpy(alterReq.dbname, "1.d2");
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SAlterUserReq alterReq = {0};
+    alterReq.alterType = TSDB_ALTER_USER_REMOVE_READ_DB;
+    strcpy(alterReq.user, "u3");
+    strcpy(alterReq.pass, "1");
+    strcpy(alterReq.dbname, "1.d2");
+
+    int32_t contLen = tSerializeSAlterUserReq(NULL, &alterReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSAlterUserReq(&pBuf, &alterReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
+  {
+    SDropUserReq dropReq = {0};
+    strcpy(dropReq.user, "u3");
+
+    int32_t contLen = tSerializeSDropUserReq(NULL, &dropReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSDropUserReq(&pBuf, &dropReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_DROP_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+
+    test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
+    test.SendShowRetrieveReq();
+    EXPECT_EQ(test.GetShowRows(), 1);
+  }
 }
 
-TEST_F(MndTestUser, 04_Drop_User) {
+TEST_F(MndTestUser, 05_Drop_User) {
   {
     SDropUserReq dropReq = {0};
     strcpy(dropReq.user, "");
@@ -206,6 +463,21 @@ TEST_F(MndTestUser, 04_Drop_User) {
     ASSERT_EQ(pRsp->code, TSDB_CODE_MND_USER_NOT_EXIST);
   }
 
+  {
+    SCreateUserReq createReq = {0};
+    strcpy(createReq.user, "u1");
+    strcpy(createReq.pass, "p1");
+
+    int32_t contLen = tSerializeSCreateUserReq(NULL, &createReq);
+    void*   pReq = rpcMallocCont(contLen);
+    void*   pBuf = pReq;
+    tSerializeSCreateUserReq(&pBuf, &createReq);
+
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_USER, pReq, contLen);
+    ASSERT_NE(pRsp, nullptr);
+    ASSERT_EQ(pRsp->code, 0);
+  }
+
   {
     SDropUserReq dropReq = {0};
     strcpy(dropReq.user, "u1");
@@ -227,7 +499,7 @@ TEST_F(MndTestUser, 04_Drop_User) {
   EXPECT_EQ(test.GetShowRows(), 1);
 }
 
-TEST_F(MndTestUser, 05_Create_Drop_Alter_User) {
+TEST_F(MndTestUser, 06_Create_Drop_Alter_User) {
   {
     SCreateUserReq createReq = {0};
     strcpy(createReq.user, "u1");