VOS_VOID NAS_EMM_SER_CompCnServiceReq( LRRC_LNAS_MSG_STRU *pNasMsg)
{
VOS_UINT32 ulIndex = 0;
VOS_UINT8 ucKsiSn;
VOS_UINT8 ucKsi;
VOS_UINT8 ucSequenceNum;
/* 打印进入该函数， INFO_LEVEL */
NAS_EMM_SER_LOG_INFO("NAS_EMM_SER_CompCnServiceReq is entered.");
/* 清空将填充CN消息的空间 */
/* xiongxianghui00253310 delete memset 2013-11-26 begin */
/* NAS_LMM_MEM_SET(pNasMsg->aucNasMsg, 0, pNasMsg->ulNasMsgSize); */
/* xiongxianghui00253310 delete memset 2013-11-26 end */
/* 填充 Security header type + Protocol discriminator */
pNasMsg->aucNasMsg[ulIndex++] = EMM_CN_SECURITY_HEADER_TYPE_SER_REQ;
/* 计算 KsiSn*/
ucKsi = NAS_EMM_SecuGetKSIValue();
ucSequenceNum = (VOS_UINT8)NAS_EMM_SecuGetUlNasCountVAlue();
ucSequenceNum = ucSequenceNum & EMM_TAUSER_LOW5_BITS;
ucKsiSn = ((VOS_UINT8)(ucKsi << 5)) | ucSequenceNum;
/* 填充 KSI and sequence number */
pNasMsg->aucNasMsg[ulIndex++] = ucKsiSn;
/* 填充 Message authentication code */
/*这里只需要初始化为0，在完整性保护时会填充这两个字节*/
pNasMsg->aucNasMsg[ulIndex++] = 0;
pNasMsg->aucNasMsg[ulIndex] = 0;
return;
}
/*****************************************************************************
Function Name : NAS_EMM_CompCnExtendedSerReqMoNasMsg
Description : 组装EXTENDED SERVICE REQ消息
Input : pulIndex
Output : pucCnMsg
pulIndex
Return : VOS_VOID
History :
1.lihong 2012-02-23 Draft Enact
*****************************************************************************/
VOS_VOID NAS_EMM_CompCnExtendedSerReqMoNasMsg
(
VOS_UINT8 *pucCnMsg,
VOS_UINT32 *pulIndex
)
{
VOS_UINT32 ulIndex = NAS_EMM_NULL;
VOS_UINT8 ucKsi = NAS_EMM_NULL;
NAS_LMM_PUB_INFO_STRU *pstEmmInfo = VOS_NULL_PTR;
VOS_UINT32 ulIeLength = 0;
ulIndex = *pulIndex;
pstEmmInfo = NAS_LMM_GetEmmInfoAddr();
/* 填充 Protocol Discriminator + Security header type*/
pucCnMsg[ulIndex++] = EMM_CN_MSG_PD_EMM;
/* 填充 Detach request message identity */
pucCnMsg[ulIndex++] = NAS_EMM_CN_MT_EXT_SER_REQ;
/* 填充service type */
if (NAS_EMM_SER_START_CAUSE_MO_CSFB_REQ == NAS_EMM_SER_GetEmmSERStartCause())
{
pucCnMsg[ulIndex] = MMC_LMM_SERVICE_MO_CSFB_1XCSFB;
}
else if (NAS_EMM_SER_START_CAUSE_MO_EMERGENCY_CSFB_REQ == NAS_EMM_SER_GetEmmSERStartCause())
{
pucCnMsg[ulIndex] = MMC_LMM_SERVICR_MO_CSFB_1XCSFB_EMERGENCY;
}
else
{
pucCnMsg[ulIndex] = MMC_LMM_SERVICR_MT_CSFB_1XCSFB;
}
/*填充KSIasme*/
ucKsi = NAS_EMM_SecuGetKSIValue();
pucCnMsg[ulIndex++] |= (ucKsi & 0x0F)<<4;
/*填充M-TSMI*/
/* 填写LENGTH为5 */
pucCnMsg[ulIndex++] = 5;
/* 填写TYPE OF IDENTITY，和EVEN/ODD标识，根据协议前4BIT为'1111' */
pucCnMsg[ulIndex] = NAS_EMM_TYPE_OF_IDENTITY_TMSI_PTMSI_MTMSI;
pucCnMsg[ulIndex++] |= NAS_EMM_HIGH_4_BIT;
NAS_LMM_MEM_CPY( &(pucCnMsg[ulIndex]),
&pstEmmInfo->stMmUeId.stGuti.stMTmsi,
sizeof(NAS_EMM_MTMSI_STRU));
ulIndex += sizeof(NAS_EMM_MTMSI_STRU);
/* 只有MT CSFB才填充CSFB RESPONSE */
if (NAS_EMM_SER_START_CAUSE_MT_CSFB_REQ == NAS_EMM_SER_GetEmmSERStartCause())
{
pucCnMsg[ulIndex++] = NAS_EMM_EXTENDED_SER_REQ_CSFB_RSP_IEI | NAS_EMM_SER_GetEmmSerCsfbRsp();
}
/* 填充EPS bearer context status */
/*leili modify for isr begin*/
NAS_EMM_EncodeEpsBearStatus( &(pucCnMsg[ulIndex]),
&ulIeLength);
ulIndex += ulIeLength;
/*leili modify for isr end*/
#if 0
pucCnMsg[ulIndex++] = NAS_EMM_TAU_REQ_EPS_STATUS_IEI;
pucCnMsg[ulIndex++] = NAS_EMM_CN_EPS_CONTEXT_LEN;
for(ulLoop = 0; ulLoop < NAS_EMM_GetEpsIdNum(); ulLoop++)
{
ucEsmEPSNum = (VOS_UINT8)(NAS_EMM_GetEpsId(ulLoop));
if( NAS_EMM_EPS_BEARER_STATUS_NUM_SEVEN < ucEsmEPSNum)
{
ucEsmEPSNum = ucEsmEPSNum - NAS_EMM_EPS_BEARER_STATUS_NUM_EIGNT;
ucEsmEPS2 = ucEsmEPS2 | NAS_EMM_TAU_ESM_BEARER_LEFT_N(ucEsmEPSNum);
}
else
{
ucEsmEPS1 = ucEsmEPS1 | NAS_EMM_TAU_ESM_BEARER_LEFT_N(ucEsmEPSNum);
}
}
pucCnMsg[ulIndex++] = ucEsmEPS1;
pucCnMsg[ulIndex++] = ucEsmEPS2;
#endif
*pulIndex = ulIndex;
return;
}
VOS_VOID NAS_EMM_CompCnDetachReqMoNasMsg( VOS_UINT8 *pucCnMsg,
VOS_UINT32 *pulIndex)
{
VOS_UINT32 ulIndex = 0;
VOS_UINT8 ucKsi;
MMC_LMM_MO_DETACH_TYPE_ENUM_UINT32 enDetachType = MMC_LMM_MO_DETACH_TYPE_BUTT;
VOS_UINT32 ulLen = 0;
ulIndex = *pulIndex;
/* 填充 Protocol Discriminator + Security header type*/
pucCnMsg[ulIndex++] = EMM_CN_MSG_PD_EMM;
/* 填充 Detach request message identity */
pucCnMsg[ulIndex++] = NAS_EMM_CN_MT_DETACH_REQ_MT;
/* lihong00150010 swtichoff begin */
/*填充Detach type*/
if (NAS_EMM_DETACH_MODE_SWITCH_OFF == NAS_EMM_GLO_AD_GetDetMode())
{
enDetachType = NAS_EMM_GetSwitchOffDetachType();
}
else
{
enDetachType = NAS_EMM_GetDetachType();
}
pucCnMsg[ulIndex] = (VOS_UINT8)(NAS_EMM_GLO_AD_GetDetMode() |
enDetachType);
/* lihong00150010 swtichoff end */
/*填充KSIasme*/
ucKsi = NAS_EMM_SecuGetKSIValue();
pucCnMsg[ulIndex++] |= (ucKsi & 0x0F)<<4;
/*填充GUTI或IMSI*/
if (NAS_EMM_AD_BIT_SLCT == NAS_EMM_GLO_AD_OP_GUTI())
{
/*填充GUTI*/
/*============ GUTI ============ begin */
pucCnMsg[ulIndex++] = NAS_EMM_GLO_AD_GetLen();
pucCnMsg[ulIndex++] =(NAS_EMM_GLO_AD_GetOeToi()|NAS_EMM_HIGH_HALF_BYTE_F);/* [false alarm]:代码保证了不会越界 */
NAS_LMM_MEM_CPY( &(pucCnMsg[ulIndex]),
NAS_EMM_GLO_AD_GetGutiPlmn(),
NAS_EMM_AD_LEN_PLMN_ID);
ulIndex += NAS_EMM_AD_LEN_PLMN_ID;
pucCnMsg[ulIndex++] = NAS_EMM_GLO_AD_GetMmeGroupId();/* [false alarm]:代码保证了不会越界 */
pucCnMsg[ulIndex++] = NAS_EMM_GLO_AD_GetMMeGroupIdCnt();/* [false alarm]:代码保证了不会越界 */
pucCnMsg[ulIndex++] = NAS_EMM_GLO_AD_GetMMeCode();/* [false alarm]:代码保证了不会越界 */
NAS_LMM_MEM_CPY( &(pucCnMsg[ulIndex]),
NAS_EMM_GLO_AD_GetMTmsiAddr(),
sizeof(NAS_EMM_MTMSI_STRU));
ulIndex += sizeof(NAS_EMM_MTMSI_STRU);
/*============ GUTI ============ end */
}/* lihong00150010 emergency tau&service begin */
else if (NAS_EMM_AD_BIT_SLCT == NAS_EMM_GLO_AD_OP_IMSI())
{/* lihong00150010 emergency tau&service end */
/*填充IMSI*/
/*============ IMSI ============ begin */
NAS_LMM_MEM_CPY( &(pucCnMsg[ulIndex]),
NAS_EMM_GLO_AD_GetImsi(),
NAS_EMM_AD_LEN_CN_MSG_IMSI);
ulIndex += NAS_EMM_AD_LEN_CN_MSG_IMSI;
/*============ IMSI ============ end */
}/* lihong00150010 emergency tau&service begin */
else
{
NAS_EMM_CompImei(&(pucCnMsg[ulIndex]),&ulLen);
ulIndex += ulLen;
}
/* lihong00150010 emergency tau&service end */
*pulIndex = ulIndex;
return;
}
