-S16 packEgtpCfgReq(Pst *pst, EgtpConfig egtpCfg);
-S16 unpackEgtpCfgReq(EgtpCfgReq func , Pst *pst, Buffer *mBuf);
-S16 packEgtpCfgCfm(Pst *pst, CmStatus cfm);
-S16 unpackEgtpCfgCfm(EgtpCfgCfm func, Buffer *mBuf);
-S16 packEgtpSrvOpenReq(Pst *pst);
-S16 unpackkEgtpSrvOpenReq(EgtpSrvOpenReq func, Pst *pst, Buffer *mBuf);
-S16 packEgtpSrvOpenCfm(Pst *pst, CmStatus cfm);
-S16 unpackEgtpSrvOpenCfm(EgtpSrvOpenCfm func, Buffer *mBuf);
-S16 packEgtpTnlMgmtReq(Pst *pst, EgtpTnlEvt tnlEvt);
-S16 unpackEgtpTnlMgmtReq(EgtpTnlMgmtReq func, Pst *pst, Buffer *mBuf);
-S16 packEgtpTnlMgmtCfm(Pst *pst, EgtpTnlEvt tnlEvt);
-S16 unpackEgtpTnlMgmtCfm(EgtpTnlMgmtCfm func, Buffer *mBuf);
-S16 packEgtpSlotInd(Pst *pst);
-S16 unpackEgtpSlotInd(EgtpSlotInd func, Pst *pst, Buffer *mBuf);
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+uint8_t packEgtpCfgReq(Pst *pst, EgtpConfig egtpCfg);
+uint8_t unpackEgtpCfgReq(EgtpCfgReq func , Pst *pst, Buffer *mBuf);
+uint8_t packEgtpCfgCfm(Pst *pst, CmStatus cfm);
+uint8_t unpackEgtpCfgCfm(EgtpCfgCfm func, Buffer *mBuf);
+uint8_t packEgtpSrvOpenReq(Pst *pst);
+uint8_t unpackkEgtpSrvOpenReq(EgtpSrvOpenReq func, Pst *pst, Buffer *mBuf);
+uint8_t packEgtpSrvOpenCfm(Pst *pst, CmStatus cfm);
+uint8_t unpackEgtpSrvOpenCfm(EgtpSrvOpenCfm func, Buffer *mBuf);
+uint8_t packEgtpTnlMgmtReq(Pst *pst, EgtpTnlEvt tnlEvt);
+uint8_t unpackEgtpTnlMgmtReq(EgtpTnlMgmtReq func, Pst *pst, Buffer *mBuf);
+uint8_t egtpTnlMgmtReq(Pst *pst, EgtpTnlEvt tnlEvt);
+uint8_t packEgtpTnlMgmtCfm(Pst *pst, EgtpTnlEvt tnlEvt);
+uint8_t duHdlEgtpTnlMgmtCfm(EgtpTnlEvt tnlEvtCfm);
+uint8_t unpackEgtpTnlMgmtCfm(EgtpTnlMgmtCfm func, Buffer *mBuf);
+uint8_t packEgtpStartPollingReq(Pst *pst);