static struct mfc_cache *ipmr_cache_find2(struct net *net,
__be32 origin, __be32 mcastgrp, struct net_device *pstDev)
{
int mr_ifindex = -1;
int line = MFC_HASH(mcastgrp, origin);
struct mfc_cache *c = NULL;
if (!pstDev)
{
return NULL;
}
mr_ifindex = ipmr_find_vif(pstDev);
for (c = net->ipv4.mfc_cache_array[line]; c; c = c->next) {
if (c->mfc_origin==origin
&& c->mfc_mcastgrp==mcastgrp
&& mr_ifindex == c->mfc_parent)
break;
}
if (NULL == c) {
line = MFC_HASH(mcastgrp, htonl(0x00000000));
for (c = net->ipv4.mfc_cache_array[line]; c; c = c->next) {
if (c->mfc_mcastgrp == mcastgrp
&& mr_ifindex == c->mfc_parent)
break;
}
}
return c;
}
static struct mfc_cache *ipmr_cache_find(struct net *net,
__be32 origin,
__be32 mcastgrp,
unsigned int ifindex)
{
int line = MFC_HASH(mcastgrp, origin);
struct mfc_cache *c;
for (c = net->ipv4.mfc_cache_array[line]; c; c = c->next) {
if ((c->mfc_origin == origin) &&
(c->mfc_mcastgrp == mcastgrp) &&
(c->mfc_parent == ifindex))
break;
}
/* for ASM multicast source does not matter so need to check
for an entry with NULL origin */
if(c == NULL) {
line = MFC_HASH(mcastgrp, 0x0);
for (c = net->ipv4.mfc_cache_array[line]; c; c = c->next) {
if ((c->mfc_origin == 0x0) &&
(c->mfc_mcastgrp == mcastgrp) &&
(c->mfc_parent == ifindex))
break;
}
}
return c;
}
static struct mfc_cache *ipmr_cache_find(__u32 origin, __u32 mcastgrp,unsigned int ifindex)
{
int line=MFC_HASH(mcastgrp,origin,ifindex);
struct mfc_cache *c;
for (c=mfc_cache_array[line]; c; c = c->next) {
if (c->mfc_origin==origin && c->mfc_mcastgrp==mcastgrp)
break;
}
if(c == NULL) {
line = MFC_HASH(mcastgrp,htonl(0x00000000), ifindex);
for (c=mfc_cache_array[line]; c; c = c->next) {
if ( c->mfc_mcastgrp==mcastgrp)
break;
}
}
return c;
}
static struct mfc_cache *ipmr_cache_find(__u32 origin, __u32 mcastgrp)
{
int line=MFC_HASH(mcastgrp,origin);
struct mfc_cache *c;
for (c=mfc_cache_array[line]; c; c = c->next) {
if (c->mfc_origin==origin && c->mfc_mcastgrp==mcastgrp)
break;
}
return c;
}
static void ipmr_cache_delete(struct mfc_cache *cache)
{
struct sk_buff *skb;
int line;
struct mfc_cache **cp;
/*
* Find the right cache line
*/
line=MFC_HASH(cache->mfc_mcastgrp,cache->mfc_origin);
cp=&(mfc_cache_array[line]);
if(cache->mfc_flags&MFC_QUEUED)
del_timer(&cache->mfc_timer);
/*
* Unlink the buffer
*/
while(*cp!=NULL)
{
if(*cp==cache)
{
*cp=cache->next;
break;
}
cp=&((*cp)->next);
}
/*
* Free the buffer. If it is a pending resolution
* clean up the other resources.
*/
if(cache->mfc_flags&MFC_QUEUED)
{
cache_resolve_queue_len--;
while((skb=skb_dequeue(&cache->mfc_unresolved))) {
#ifdef CONFIG_RTNETLINK
if (skb->nh.iph->version == 0) {
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
nlh->nlmsg_type = NLMSG_ERROR;
nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
skb_trim(skb, nlh->nlmsg_len);
((struct nlmsgerr*)NLMSG_DATA(nlh))->error = -ETIMEDOUT;
netlink_unicast(rtnl, skb, NETLINK_CB(skb).dst_pid, MSG_DONTWAIT);
} else
#endif
kfree_skb(skb);
}
}
kfree_s(cache,sizeof(cache));
}
struct mfc_cache *ipmr_cache_find(__u32 origin, __u32 mcastgrp)
{
int line=MFC_HASH(mcastgrp,origin);
struct mfc_cache *cache;
cache=mfc_cache_array[line];
while(cache!=NULL)
{
if(cache->mfc_origin==origin && cache->mfc_mcastgrp==mcastgrp)
return cache;
cache=cache->next;
}
return NULL;
}
static void ipmr_cache_insert(struct mfc_cache *c)
{
int line=MFC_HASH(c->mfc_mcastgrp,c->mfc_origin);
c->next=mfc_cache_array[line];
mfc_cache_array[line]=c;
}
