/*
@func int32 | rtl865x_referPpp |refer ppp table entry.
@parm uint32 | sessionId | ppp session ID
@rvalue SUCCESS | Success.
@rvalue FAILED | Failed
@comm
*/
int32 rtl865x_referPpp(uint32 sessionId)
{
int32 retval = FAILED;
unsigned long flags;
//rtl_down_interruptible(&ppp_sem);
local_irq_save(flags);
retval = _rtl865x_referPpp(sessionId);
//rtl_up(&ppp_sem);
local_irq_restore(flags);
return retval;
}
static int32 _rtl865x_addNxtHop(uint32 attr, void *ref_ptr, rtl865x_netif_local_t *netif, uint32 nexthop,uint32 srcIp)
{
int entryIdx;
rtl865x_nextHopEntry_t *entry = NULL, *entry1 = NULL;
rtl865x_route_t *rt_t = NULL;
/*
* NOTE:
* parameter description:
* (1) attr: why need to add the nexthop entry? NEXTHOP_L3 or NEXTHOP_DEFREDIRECT_ACL?
* (2) ref_ptr: when attr = NEXTHOP_L3, ref_ptr point to a route structure,
* attr = NEXTHOP_DEFREDIRECT_ACL, ref_ptr = NULL,
* attr = others, ref_ptr = NULL
* (3) netif: destination network interface
* (4) nexthop:
* a) netif->if_type == IF_ETHER, nexthop = nexthop ip address,
* b) netif->if_type == session based type, nexthop = session Id,
*
* following case should be NOTED now:
* (1) ETHERNET type network interface:
* a) If nexthop != NULL , it means the entry is added for:
* nexthop ip&mac information, nextHop = arp entry of nexthop ip address.
* b) If nexthop == 0, use default route's nexthop or nexthop TOCPU
*
* (2) PPPoE/PPTP/L2TP type network interface:
* The "nexthop" will explicitly specify the PPPoE session (PPTP/L2TP session).
*/
if(netif == NULL)
return RTL_EINVALIDINPUT;
/* Allocate an empty entry for new one */
/*Note: all nexthop entry referenced by L3 must be 2 entries aligned(reference l3 Datasheet)*/
for(entryIdx = 0; entryIdx < NXTHOP_ENTRY_NUM; entryIdx++)
{
if(rtl865x_nxtHopTable[entryIdx].valid == 0)
{
switch(attr)
{
case NEXTHOP_L3:
if( entryIdx%2 == 0 && (entryIdx + 1) < NXTHOP_ENTRY_NUM && rtl865x_nxtHopTable[entryIdx+1].valid == 0)
{
entry = &rtl865x_nxtHopTable[entryIdx];
goto found;
}
break;
case NEXTHOP_DEFREDIRECT_ACL:
entry = &rtl865x_nxtHopTable[entryIdx];
goto found;
break;
default:
printk("attr(%d) is not support.....\n",attr);
break;
}
}
}
/*if not found proper nextHop entry, return*/
entry = NULL;
found:
if(entry == NULL)
return RTL_ENOFREEBUFFER;
entry->valid = 1;
entry->dstNetif = netif;
entry->entryIndex = entryIdx;
entry->nextHopType = netif->if_type;
entry->srcIp = srcIp;
entry->refCnt = 1;
entry->flag = attr;
switch(netif->if_type)
{
case IF_ETHER:
entry->nexthop = nexthop;
break;
case IF_PPPOE:
case IF_PPTP:
case IF_L2TP:
/*nexthop is sessionId*/
entry->nexthop = nexthop;
break;
}
if(attr == NEXTHOP_L3)
{
entry1 = &rtl865x_nxtHopTable[entryIdx+1];
memcpy(entry1,entry,sizeof(rtl865x_nextHopEntry_t));
entry1->entryIndex = entryIdx + 1;
_rtl865x_arrangeNxtHop(entryIdx, 2);
/*entry1 used netif,update reference netif*/
rtl865x_referNetif(netif->name);
/*entry1 used pppoe!, update reference pppoe*/
if((entry1->nextHopType == IF_PPPOE)
|| (entry1->nextHopType == IF_PPTP)
|| (entry1->nextHopType == IF_L2TP)
){
#if LINUX_VERSION_CODE > KERNEL_VERSION(3,4,0)
_rtl865x_referPpp(nexthop);
#else
rtl865x_referPpp(nexthop);
#endif
}
/*FIXME_hyking:lazy, update the route information right here....*/
rt_t = (rtl865x_route_t *)ref_ptr;
rt_t ->un.nxthop.nxtHopSta = entryIdx;
rt_t ->un.nxthop.nxtHopEnd = entryIdx + 1;
}
else
_rtl865x_arrangeNxtHop(entryIdx, 1);
/*update reference dstnetif&pppoe arp?*/
rtl865x_referNetif(netif->name);
if((entry->nextHopType == IF_PPPOE)
|| (entry->nextHopType == IF_PPTP)
|| (entry->nextHopType == IF_L2TP)
){
#if LINUX_VERSION_CODE > KERNEL_VERSION(3,4,0)
_rtl865x_referPpp(nexthop);
#else
rtl865x_referPpp(nexthop);
#endif
}
return SUCCESS;
}
