VOS_UINT32 Fc_BufferReportDiscount( VOS_UINT32 ulBufferSize )
{
VOS_UINT8 ulTmpCurrPos;
if(PS_FALSE == g_ulUlDowngradeFlag)
{
ulTmpCurrPos = g_stFcLteTemperatureCtrl.ucCurrPos;
}
else
{
if (g_stFcLteTemperatureCtrl.ucBsrThresCnt > 0)
{
ulTmpCurrPos = g_stFcLteTemperatureCtrl.ucBsrThresCnt - 1;
}
else
{
ulTmpCurrPos = FC_UL_THROUGHPUT_THRES_CNT;
}
}
if(ulTmpCurrPos < FC_UL_THROUGHPUT_THRES_CNT)
{
if(ulBufferSize > g_stFcLteTemperatureCtrl.ulTemperSteps[ulTmpCurrPos])
{
ulBufferSize = g_stFcLteTemperatureCtrl.ulTemperSteps[ulTmpCurrPos];
}
}
/* CPU或温控减速 */
/* 0.9999浮点逼近 1 */
if((g_dBsrCpuModu < 0.9999) && (g_stFcLteCpuCtrl.ulUlMinBsr < ulBufferSize))
{
ulBufferSize = (VOS_UINT32)(ulBufferSize * g_dBsrCpuModu);
if(g_stFcLteCpuCtrl.ulUlMinBsr > ulBufferSize)
{
FC_CL_BSR_BELOW_MIN_STAT(1);
ulBufferSize = g_stFcLteCpuCtrl.ulUlMinBsr;
}
}
if(g_BsrCheck)
{
if(977 == PS_RAND(3000))
{
PS_PRINTF("BSR value: %d\r\n", ulBufferSize);
}
}
return ulBufferSize;
}
/*****************************************************************************
函 数 名 : chap_Challenge
功能描述 : 构造Challenge帧并发送
输入参数 : l - PPP链接
输出参数 : 无
返 回 值 : 无
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2008年10月25日
作 者 : liukai
修改内容 : porting from BSD
*****************************************************************************/
VOS_VOID chap_Challenge(struct link *l)
{
struct chap *chap = &(l->chap);
VOS_UINT32 len, i;
VOS_UINT8 *cp;
VOS_UINT32 ulTick;
const VOS_CHAR acLocalChallenge[] = "HUAWEI_CHAP_SRVR"; /* we always use "HUAWEI_CHAP_SRVR" as Name of Challenge */
/* Challenge body: */
/*
* ------------------------ --------------------- ----------
* | Challenge-Size(1B) | Challenge-Value | Name |
* ------------------------ --------------------- ----------
*/
len = VOS_StrLen((VOS_CHAR *)acLocalChallenge);
if (0x0 == *(chap->challenge.local)) { /* as each time local[0] is 0x0, here is always true */
ulTick = VOS_GetTick();
VOS_SetSeed(ulTick); /* use current tick as seed of random algorithm */
cp = chap->challenge.local;
/*AT2D19295 测试组建议challenge中随机字符串长度固定为16，和标杆一致 */
*cp++ = (VOS_UINT8)(MD5DIGESTSIZE);
/*
*cp++ = (VOS_UINT8)(PS_RAND(CHAPCHALLENGELEN-MD5DIGESTSIZE) + MD5DIGESTSIZE);
随机字串长度本为任意长度, 存放在local的第一个字节,为了防止对端只支持MD5而要求长度为16, 特意保证长度至少16字节
*/
for (i = 0; i < *(chap->challenge.local); i++)
{
*cp++ = (VOS_UINT8)PS_RAND(PS_NULL_UINT8+1); /* 随机字串 */
}
/* use memcpy instead of strcpy, as "The Name should not be NUL or CR/LF terminated." in RFC1994 */
PS_MEM_CPY(cp, acLocalChallenge, len);
}
/* each time send challenge, record its packet */
ChapBufferChallengePacket(chap, chap->auth.id, chap->challenge.local,
1 + *(chap->challenge.local) + len);
ChapOutput(l, CHAP_CHALLENGE, chap->auth.id, chap->challenge.local,
1 + *(chap->challenge.local) + len, VOS_NULL_PTR); /* 1: challenge length, *local: 随机字串长度, len: Name length */
return;
} /* chap_Challenge */
VOS_BOOL Fc_CdsDlPktDiscard(VOS_UINT8 ucRabId)
{
VOS_UINT32 ulRandValue;
(VOS_VOID)ucRabId;
/*lint -e960*/
if((g_stFcCdsDlCtrl.bDlCdsFcEnable)
&& (g_stFcCdsDlCtrl.ulDiscardThres > TTF_GetDlIpFreeMemCnt()))
{
/* 丢包 */
ulRandValue = PS_RAND(101);
if(ulRandValue > g_stFcCdsDlCtrl.ulDiscardRate)
{
return VOS_FALSE;
}
return VOS_TRUE;
}
return VOS_FALSE;
/*lint +e960*/
}
VOS_BOOL QosFc_IsDiscard(VOS_UINT8 ucRabId, MODEM_ID_ENUM_UINT16 enModemId)
{
static VOS_UINT32 ulPktCntVal = 0; /* 包计数 */
VOS_UINT32 ulRandValue = 0;
if(VOS_TRUE != g_stQosFcCtrl.bQosFcEnable)
{
/* 流控没打开，不进流控状态 */
return VOS_FALSE;
}
ulPktCntVal++;
if(ulPktCntVal >= g_stQosFcCtrl.ulPktCntLimit)
{
ulPktCntVal = 0;
QosFc_FlowCtrl();
}
if(QosFc_IsInValidRabId(ucRabId))
{
CDS_ERROR_LOG1(UEPS_PID_CDS,"QosFc_IsDiscard : Error RabId: ", ucRabId);
/* 非法承载，丢包 */
return VOS_TRUE;
}
switch( g_enRabState[enModemId][ucRabId - 5] )
{
case QOS_FC_RAB_STATE_NORMAL:
case QOS_FC_RAB_STATE_NOT_DISCARD:
/* 正常数传状态，不丢包 */
return VOS_FALSE;
case QOS_FC_RAB_STATE_RANDOM_DISCARD:
FC_DBG_RCV_PKT_ONRD_STAT(enModemId, ucRabId, 1);
/* 随机丢包 */
ulRandValue = PS_RAND(101);
if(ulRandValue > g_stQosFcCtrl.ulRandomDiscardRate)
{
return VOS_FALSE;
}
FC_DBG_DISCARD_PKT_ONRD_STAT(enModemId, ucRabId, 1);
return VOS_TRUE;
case QOS_FC_RAB_STATE_DISCARD:
FC_DBG_RCV_PKT_OND_STAT(enModemId, ucRabId, 1);
/* 丢包 */
ulRandValue = PS_RAND(101);
if(ulRandValue > g_stQosFcCtrl.ulDiscardRate)
{
return VOS_FALSE;
}
FC_DBG_DISCARD_PKT_OND_STAT(enModemId, ucRabId, 1);
return VOS_TRUE;
default:
/* 非法状态 */
CDS_ERROR_LOG3(UEPS_PID_CDS, "QosFc_IsDiscard : Rab invalid state::",enModemId, ucRabId, g_enRabState[enModemId][ucRabId - 5]);
break;
}
/* 尽量不丢包 */
return VOS_FALSE;
}