/*****************************************************************************
Prototype : ipv4_Input
Description : 对于TE发送来的数据报文，如果对应的link中是处于网络阶段并且状
态为open，转发此报文到GGSN。
Input : ---
Output : ---返回指向mbuf的指针
Return Value : ---
Calls : ---
Called By : ---
History : ---
1.Date : 2005-11-18
Author : ---
Modification: Created function
*****************************************************************************/
PPP_ZC_STRU *ipv4_Input(/*struct bundle *bundle, */struct link *l, PPP_ZC_STRU *bp)
{
if(l->phase == PHASE_NETWORK
&&l->ipcp.fsm.state == ST_OPENED)
{
#if (PPP_FEATURE == PPP_FEATURE_PPP)
/*将上行数据发往协议栈*/
PPP_SendPulledData((VOS_UINT16)PPP_LINK_TO_ID(l), bp);
#else
/*调用PPPoE的发送函数*/
PPPoE_PPPSendDataToRABM(PPP_ZC_GET_DATA_PTR(bp), PPP_ZC_GET_DATA_LEN(bp));
PPP_MemFree(bp);
#endif
}
else
{
PPP_MemFree(bp);
}
return VOS_NULL_PTR;
}
/*****************************************************************************
函 数 名 : PPP_SendPulledData
功能描述 : 上行发送数据给协议栈
输入参数 : ucPppId --- PPP ID
pstMem --- TTF_MEM形式的数据
输出参数 :
返 回 值 : PS_SUCC 成功；PS_FAIL 失败
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2011-03-09
作 者 : l00164359
修改内容 : Created
*****************************************************************************/
VOS_UINT32 PPP_SendPulledData(VOS_UINT16 usPppId, PPP_ZC_STRU *pstImmZc)
{
VOS_UINT8 ucRabId = PPP_INVALID_RABID;
VOS_UINT32 ulResult;
/*Add by y45445*/
#ifdef WTTF_PS_FUSION_PC_ST
ucRabId = 5;
#else
/* 通过usPppId，寻找到usRabId */
if ( !PPP_PPPID_TO_RAB(usPppId, &ucRabId) )
{
g_PppDataQCtrl.stStat.ulUplinkDropCnt++;
PPP_MemFree(pstImmZc);
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL,
"PPP, PPP_PushPacketEvent, WARNING, Can not get PPP Id %d, RabId %d",
usPppId, ucRabId);
return PS_FAIL;
}
#endif
/*Add by y45445*/
/* 数据发送给ADS，如果失败则释放内存 */
ulResult = ADS_UL_SendPacket(pstImmZc, ucRabId);
if ( VOS_OK != ulResult )
{
g_PppDataQCtrl.stStat.ulUplinkDropCnt++;
PPP_MemFree(pstImmZc);
return PS_FAIL;
}
g_PppDataQCtrl.stStat.ulUplinkSndDataCnt++;
return PS_SUCC;
}
PPP_ZC_STRU *proto_LayerPull(/*struct bundle *b, */struct link *l, PPP_ZC_STRU *pstMem,
VOS_UINT16 *pusProto)
{
VOS_UCHAR cp[2] = {0, 0};
VOS_UINT32 ulRst;
ulRst = PPP_MemGet(pstMem, 0, cp, 1);
if (PS_SUCC != ulRst)
{
PPP_MemFree(pstMem);
return VOS_NULL_PTR;
}
*pusProto = (VOS_UINT16)cp[0];
/* 如果协议字段占据2两个字节 */
if (!(cp[0] & 1))
{
ulRst = PPP_MemCutHeadData(&pstMem, cp, 2);
if (PS_SUCC != ulRst)
{
PPP_MemFree(pstMem);
return VOS_NULL_PTR;
}
*pusProto = (((VOS_UINT16)cp[0]) << 8) | ((VOS_UINT16)cp[1]);
}
else
{
(VOS_VOID)PPP_MemCutHeadData(&pstMem, cp, 1);
}
return pstMem;
}
/******************************************************************************
Function: PPP_STUB_TraceDlData
Description: 将下行数据发送给GTR
Calls:
Data Accessed:
Data Updated:
Input:
Output:
Return:
Others:
******************************************************************************/
VOS_VOID PPP_STUB_TraceDlData(PPP_ZC_STRU *pstImmZc)
{
PPP_STUB_ZC_DATA_MSG_STRU *pstDlStubMsg;
VOS_UINT32 ulLength;
ulLength = sizeof(PPP_STUB_ZC_DATA_MSG_STRU) - VOS_MSG_HEAD_LENGTH;
pstDlStubMsg = (PPP_STUB_ZC_DATA_MSG_STRU *) PS_ALLOC_MSG( PS_PID_APP_PPP, ulLength);
if ( VOS_NULL_PTR == pstDlStubMsg )
{
return;
}
pstDlStubMsg->ulReceiverCpuId = VOS_LOCAL_CPUID;
pstDlStubMsg->ulReceiverPid = WUEPS_PID_AT;
pstDlStubMsg->ulSenderPid = PS_PID_APP_PPP;
pstDlStubMsg->ulSenderCpuId = VOS_LOCAL_CPUID;
pstDlStubMsg->ulLength = ulLength;
pstDlStubMsg->ulMsgType = PPP_AT_DL_DATA_IND;
pstDlStubMsg->u.stDlDataInd.usDataLen = PPP_ZC_GET_DATA_LEN(pstImmZc);
PPP_MemSingleCopy(&(pstDlStubMsg->u.stDlDataInd.aucData[0]), PPP_ZC_GET_DATA_PTR(pstImmZc),
pstDlStubMsg->u.stDlDataInd.usDataLen);
PS_SEND_MSG(PS_PID_APP_PPP, pstDlStubMsg);
#ifdef WTTF_PS_FUSION_PC_ST
PPP_MemFree(pstImmZc);
#endif
return;
}
/*****************************************************************************
函 数 名 : PPP_HDLC_ProcIpModeUlData
功能描述 : IP类型拨号，软件或硬件解封装完成后，调用此接口处理输出数据
输入参数 : pstLink - PPP链路信息
pstMem - 解封装后单个输出数据包
usProto - 数据包对应的协议
输出参数 : 无
返 回 值 : 无
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2012年4月10日
作 者 : l00164359
修改内容 : 新生成函数
*****************************************************************************/
VOS_VOID PPP_HDLC_ProcIpModeUlData
(
struct link *pstLink,
PPP_ZC_STRU *pstMem,
VOS_UINT16 usProto
)
{
#ifdef PPP_ST_TEST
PPP_STUB_ProcUlData(pstMem, 5);
#else
VOS_UINT32 f;
struct ppp_mbuf *bp;
/* 把PPP协商包作为可维可测信息,IP包不做可维可测维护*/
if (PROTO_IP != usProto)
{
Ppp_TtfMemFrameMntnInfo(pstMem, usProto, PPP_RECV_IN_PROTOCOL_FRAME);
}
for (f = 0; f < DSIZE; f++)
{
if (despatcher[f].proto == usProto)
{
pstMem = (*despatcher[f].fn)(/*bundle, */pstLink, pstMem);
break;
}
}
/* 如果是不支持的协议，向对端发送REJ帧 */
if (VOS_NULL_PTR != pstMem)
{
bp = ppp_m_get_from_ttfmem(pstMem);
PPP_MemFree(pstMem);
if (VOS_NULL_PTR == bp)
{
return;
}
/* struct physical *p = link2physical(l);
log_Printf(LogPHASE, "%s protocol 0x%04x (%s)\n",
f == DSIZE ? "Unknown" : "Unexpected", proto,
hdlc_Protocol2Nam(proto));*/
bp = ppp_m_pullup(proto_Prepend(bp, usProto, 0, 0));
if (VOS_NULL_PTR == bp)
{
return;
}
lcp_SendProtoRej(&pstLink->lcp, PPP_MBUF_CTOP(bp), bp->m_len);
if (pstLink)
{
pstLink->hdlc.lqm.SaveInDiscards++;
pstLink->hdlc.stats.unknownproto++;
}
ppp_m_freem(bp);
}
return;
#endif
}
/*****************************************************************************
函 数 名 : chap_Input
功能描述 : 收到CHAP帧的处理入口函数
输入参数 : l - PPP链接
pstMem - 收到的CHAP帧
输出参数 : 无
返 回 值 : NULL
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2008年10月24日
作 者 : liukai
修改内容 : porting from BSD
*****************************************************************************/
PPP_ZC_STRU *chap_Input(struct link *l, PPP_ZC_STRU *pstMem)
{
struct chap *chap;
VOS_INT32 len;
VOS_UCHAR alen; /* answer length: challenge or response body length */
struct ppp_mbuf *bp;
VOS_UCHAR aucHashValue[MD5DIGESTSIZE];
bp = ppp_m_get_from_ttfmem(pstMem);
PPP_MemFree(pstMem);
if (VOS_NULL_PTR == bp)
{
return VOS_NULL_PTR;
}
if (VOS_NULL_PTR == l) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_WARNING, "Chap Input: Not a physical link - dropped\r\n");
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if ((PHASE_NETWORK != l->phase) &&
(PHASE_AUTHENTICATE != l->phase)) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Unexpected Chap input - dropped\r\n");
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
chap = &(l->chap);
if ((VOS_NULL_PTR == (bp = auth_ReadHeader(&chap->auth, bp))) &&
(0 == VOS_NTOHS(chap->auth.in.hdr.length)))
{
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_WARNING, "Chap Input: Truncated header\r\n");
}
else if ((0 == chap->auth.in.hdr.code) || ((VOS_UINT8)(chap->auth.in.hdr.code) > MAXCHAPCODE))
{
PPP_MNTN_LOG1(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: Bad CHAP code %d !\r\n", chap->auth.in.hdr.code);
}
else {
len = ppp_m_length(bp);
/* Identifier of rx-ed Response, Success, Fail should match Challenge tx-ed */
if ((CHAP_CHALLENGE != chap->auth.in.hdr.code) &&
(chap->auth.id != chap->auth.in.hdr.id)) {
/* Wrong conversation dude ! */
PPP_MNTN_LOG3(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL,
"Chap Input: code <1> dropped (got id <2> not equal to previous id <3>)\r\n",
chap->auth.in.hdr.code, chap->auth.in.hdr.id, chap->auth.id);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
chap->auth.id = chap->auth.in.hdr.id; /* We respond with this id */
if (CHAP_CHALLENGE == chap->auth.in.hdr.code) /* rx-ed challenge */
{
bp = ppp_mbuf_Read(bp, &alen, 1); /* fetch length of peer's challenge */
len -= (alen + 1); /* after this step, len is length of peer's name */
if (len < 0) {
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: Truncated challenge (len %d, alen %d)!\r\n", len, alen);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if (AUTHLEN < len)
{
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: name of challenge too long (len %d, alen %d)!\r\n", len, alen);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if (CHAPCHALLENGELEN < alen)
{
PPP_MNTN_LOG1(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: challenge too long (len %d)!\r\n", alen);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
*chap->challenge.peer = alen;
bp = ppp_mbuf_Read(bp, chap->challenge.peer + 1, alen); /* record peer's challenge */
bp = auth_ReadName(&chap->auth, bp, len); /* record peer's name */
if (*chap->auth.in.name) /* challenge with name */
{
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: challenge (len %d, alen %d) with name\r\n",
len, alen);
}
else /* without name */
{
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: challenge (len %d, alen %d) without name\r\n",
len, alen);
}
chap_Respond(l, "HUAWEI_CHAP_CLNT"); /* we always use "HUAWEI_CHAP_CLNT" as Name of Response */
} /* end of rx-ed challenge */
else if (CHAP_RESPONSE == chap->auth.in.hdr.code) /* rx-ed response */
{
bp = ppp_mbuf_Read(bp, &alen, 1); /* read HASH-Size */
if (MD5DIGESTSIZE != alen) /* as just support MD5, must be 16 octets */
{
PPP_MNTN_LOG1(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: Hash-Size %f is not correct !\r\n", alen);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
len -= (alen + 1); /* after this step, len is length of Name Field */
if (len < 0) {
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: Truncated response (len %d, alen %d)!\r\n", len, alen);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if (AUTHLEN < len)
{
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Chap Input: name of response too long (len %d, alen %d)!\r\n", len, alen);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
bp = ppp_mbuf_Read(bp, aucHashValue, MD5DIGESTSIZE); /* cut HASH value */
bp = auth_ReadName(&chap->auth, bp, len);
if (*chap->auth.in.name)
{
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL,"Chap Input: response (len <1>, alen <2>) with name\r\n",
len, alen);
}
else
{
PPP_MNTN_LOG2(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL,"Chap Input: response (len <1>, alen <2>) without name\r\n",
len, alen);
}
if (PHASE_AUTHENTICATE == l->phase) /* 需要注意只备份在认证阶段中与challenge id匹配的response */
{
ChapBufferResponsePacket(chap, MD5DIGESTSIZE, aucHashValue, len);
}
chap_Success(l);
/*
Moves code to here as the last step of dealing with response by liukai,
it should stop authentication timer after authentication pass or fail.
Stops timer at first, a response frame format is not correct and discards it(way of BSD),
UE has no chance to send challenge again
*/
auth_StopTimer(&(chap->auth));
} /* end of rx-ed response */
else if (CHAP_SUCCESS == chap->auth.in.hdr.code) /* rx-ed success */
{
/* chap->auth.in.name is already set up at CHALLENGE time, need NOT to print again */
if (0 < len)
{
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Chap Input: success with message\r\n");
}
else
{
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Chap Input: success without message\r\n");
}
if (PROTO_CHAP == l->lcp.auth_iwait) {
l->lcp.auth_iwait = 0;
if (0 == l->lcp.auth_ineed) /* auth_ineed: 0, authentication by peer is not complete or no need to authentication,
!0, authentication by peer is complete */
{
/*
* We've succeeded in our ``login''
* If we're not expecting the peer to authenticate (or he already
* has), proceed to network phase.
*/
chap_ReInit(&(l->chap));
if (PHASE_AUTHENTICATE == l->phase)
{
l->phase = PHASE_NETWORK;
l->ipcp.fsm.state = ST_CLOSED;
fsm_Open(&(l->ipcp.fsm));
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "goto ipcp stage!\r\n");
}
}
}
} /* end of rx-ed success */
else /* rx-ed fail */
{
/* chap->auth.in.name is already set up at CHALLENGE time, need NOT to print again */
if (0 < len)
{
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Chap Input: fail with message\r\n");
}
else
{
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Chap Input: fail without message\r\n");
}
chap_Cleanup(&(l->chap));
l->phase = PHASE_TERMINATE;
fsm_Close(&(l->lcp.fsm));
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "goto lcp stage!\r\n");
} /* end of rx-ed fail */
}
ppp_m_freem(bp);
return VOS_NULL_PTR;
} /* chap_Input */
PPP_ZC_STRU *
pap_Input(/*struct bundle *bundle,*/ struct link *l, PPP_ZC_STRU *pstMem)
{
/* struct physical *p = link2physical(l);*/
#if 0 /* delete for transplant */
VOS_CHAR nlen, *key;
#endif
struct authinfo *authp =/* &p->dl*/&(l->pap.auth);
VOS_CHAR nlen;
VOS_UINT8 klen;
const VOS_CHAR *txt;
VOS_INT32 txtlen;
struct ppp_mbuf *bp;
bp = ppp_m_get_from_ttfmem(pstMem);
PPP_MemFree(pstMem);
if (VOS_NULL_PTR == bp)
{
return VOS_NULL_PTR;
}
if (l == VOS_NULL_PTR) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_WARNING, "pap input, Not a physical link - dropped\r\n");
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if (/*bundle_Phase(bundle)*/ l->phase!= PHASE_NETWORK &&
/*bundle_Phase(bundle)*/ l->phase!= PHASE_AUTHENTICATE) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Unexpected pap input - dropped\r\n");
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if ((bp = auth_ReadHeader(authp, bp)) == VOS_NULL_PTR &&
VOS_NTOHS(authp->in.hdr.length) == 0) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_WARNING, "Pap Input: Truncated header\r\n");
return VOS_NULL_PTR;
}
if (authp->in.hdr.code == 0 || authp->in.hdr.code > MAXPAPCODE) {
PPP_MNTN_LOG1(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"Bad PAP code: %d", authp->in.hdr.code);
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
if (authp->in.hdr.code != PAP_REQUEST && authp->id != authp->in.hdr.id)
{
/* Wrong conversation dude ! */
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_WARNING, "pap input, dropped (got id not equal to previous id)\r\n");
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
authp->id = authp->in.hdr.id; /* We respond with this id */
/*fanzhibin f49086 add it begin*/
if (authp->in.hdr.code == PAP_REQUEST)
{
/*将config req报文头部拷贝到缓存中*/
PS_MEM_CPY(l->pap.RecordData.BufRequest,&(authp->in.hdr),sizeof(authp->in.hdr));
ppp_mbuf_View(bp,(l->pap.RecordData.BufRequest + sizeof(authp->in.hdr)),
VOS_NTOHS(authp->in.hdr.length) - sizeof(authp->in.hdr));
l->pap.RecordData.LenOfRequest = VOS_NTOHS(authp->in.hdr.length);
}
/*fanzhibin f49086 add it end*/
if (bp) {
bp = ppp_mbuf_Read(bp, &nlen, 1);
if (authp->in.hdr.code == PAP_ACK) {
/*
* Don't restrict the length of our acknowledgement freetext to
* nlen (a one-byte length). Show the rest of the ack packet
* instead. This isn't really part of the protocol.....
*/
bp = ppp_m_pullup(bp);
txt = PPP_MBUF_CTOP(bp);
txtlen = ppp_m_length(bp);
} else {
bp = auth_ReadName(authp, bp, nlen);
txt = authp->in.name;
txtlen = VOS_StrNLen(authp->in.name,AUTHLEN);
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "username:"******"";
txtlen = 0;
}
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "\r\nPap Input\r\n");
switch (authp->in.hdr.code) {
case PAP_REQUEST:
if (bp == VOS_NULL_PTR) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "Pap Input: No key given !\r\n");
break;
}
bp = ppp_mbuf_Read(bp, &klen, 1);
if (ppp_m_length(bp) < klen) {
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_WARNING, "Pap Input: Truncated key !\r\n");
break;
}
#if 0/*fanzhibin f49086 delete it*/
if ((key = VOS_MemAlloc(PS_PID_APP_PPP, DYNAMIC_DOPRA_MEM_PT,klen+1)) == VOS_NULL_PTR) {
PS_LOG(PS_PID_APP_PPP, 0, PS_PRINT_ERROR, "Pap Input: Out of memory !\n");
break;
}
bp = ppp_mbuf_Read(bp, key, klen);
key[klen] = '\0';
#ifndef NORADIUS
if (*bundle->radius.cfg.file) {
if (!radius_Authenticate(&bundle->radius, authp, authp->in.name,
key, strlen(key), VOS_NULL_PTR, 0))
pap_Failure(authp);
} else
#endif
/*下面这句在改造的时候要添进去*/
if (auth_Validate(bundle, authp->in.name, key, p))
pap_Success(authp);
else
pap_Failure(authp);
VOS_MemFree(PS_PID_APP_PPP,key);
#endif
/*fanzhibin f49086 add it begin*/
if (klen > sizeof l->pap.RecordData.password- 1)
{
PPP_MNTN_LOG1(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"auth_ReadPassword: PassWord too long,len= %d", klen);
}
else {
if (klen > ppp_m_length(bp))
{
PPP_MNTN_LOG1(PS_PID_APP_PPP, 0, LOG_LEVEL_WARNING,
"auth_ReadPassword: Short packet, pass_len = %d", klen);
}
else {
bp = ppp_mbuf_Read(bp, l->pap.RecordData.password, klen);
l->pap.RecordData.password[klen] = '\0';
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, "password:");
PPP_MNTN_LOG(PS_PID_APP_PPP, 0, PS_PRINT_NORMAL, l->pap.RecordData.password);
}
}
pap_Success(l);
/*fanzhibin f49086 add it end*/
break;
case PAP_ACK:
#if 0/*fanzhibin f49086 delete it*/
auth_StopTimer(authp);
if (p->link.lcp.auth_iwait == PROTO_PAP) {
p->link.lcp.auth_iwait = 0;
if (p->link.lcp.auth_ineed == 0)
/*
* We've succeeded in our ``login''
* If we're not expecting the peer to authenticate (or he already
* has), proceed to network phase.
*/
datalink_AuthOk(p->dl);
}
#endif
break;
case PAP_NAK:
#if 0/*fanzhibin f49086 delete it*/
auth_StopTimer(authp);
datalink_AuthNotOk(p->dl);
#endif
break;
}
ppp_m_freem(bp);
return VOS_NULL_PTR;
}
