*
*/
-#include <linux/config.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <linux/types.h>
In this case data path is free of exclusive locks at all.
*/
-static kmem_cache_t *mrt_cachep __read_mostly;
+static struct kmem_cache *mrt_cachep __read_mostly;
static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local);
static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert);
e = NLMSG_DATA(nlh);
e->error = -ETIMEDOUT;
memset(&e->msg, 0, sizeof(e->msg));
- netlink_unicast(rtnl, skb, NETLINK_CB(skb).dst_pid, MSG_DONTWAIT);
+
+ rtnl_unicast(skb, NETLINK_CB(skb).pid);
} else
kfree_skb(skb);
}
return -ENOBUFS;
break;
case 0:
- dev=ip_dev_find(vifc->vifc_lcl_addr.s_addr);
+ dev = ip_dev_find(vifc->vifc_lcl_addr.s_addr);
if (!dev)
return -EADDRNOTAVAIL;
- __dev_put(dev);
+ dev_put(dev);
break;
default:
return -EINVAL;
return 0;
}
-static struct mfc_cache *ipmr_cache_find(__u32 origin, __u32 mcastgrp)
+static struct mfc_cache *ipmr_cache_find(__be32 origin, __be32 mcastgrp)
{
int line=MFC_HASH(mcastgrp,origin);
struct mfc_cache *c;
while((skb=__skb_dequeue(&uc->mfc_un.unres.unresolved))) {
if (skb->nh.iph->version == 0) {
- int err;
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
if (ipmr_fill_mroute(skb, c, NLMSG_DATA(nlh)) > 0) {
e->error = -EMSGSIZE;
memset(&e->msg, 0, sizeof(e->msg));
}
- err = netlink_unicast(rtnl, skb, NETLINK_CB(skb).dst_pid, MSG_DONTWAIT);
+
+ rtnl_unicast(skb, NETLINK_CB(skb).pid);
} else
ip_mr_forward(skb, c, 0);
}
* important for multicast video.
*/
-static void ip_encap(struct sk_buff *skb, u32 saddr, u32 daddr)
+static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
{
struct iphdr *iph = (struct iphdr *)skb_push(skb,sizeof(struct iphdr));
skb_pull(skb, (u8*)encap - skb->data);
skb->nh.iph = (struct iphdr *)skb->data;
skb->dev = reg_dev;
- memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) ||
(pim->flags&PIM_NULL_REGISTER) ||
(ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
- (u16)csum_fold(skb_checksum(skb, 0, skb->len, 0))))
+ csum_fold(skb_checksum(skb, 0, skb->len, 0))))
goto drop;
/* check if the inner packet is destined to mcast group */
skb_pull(skb, (u8*)encap - skb->data);
skb->nh.iph = (struct iphdr *)skb->data;
skb->dev = reg_dev;
- memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
cache = ipmr_cache_find(rt->rt_src, rt->rt_dst);
if (cache==NULL) {
+ struct sk_buff *skb2;
struct net_device *dev;
int vif;
read_unlock(&mrt_lock);
return -ENODEV;
}
- skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
- skb->nh.iph->ihl = sizeof(struct iphdr)>>2;
- skb->nh.iph->saddr = rt->rt_src;
- skb->nh.iph->daddr = rt->rt_dst;
- skb->nh.iph->version = 0;
- err = ipmr_cache_unresolved(vif, skb);
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (!skb2) {
+ read_unlock(&mrt_lock);
+ return -ENOMEM;
+ }
+
+ skb2->nh.raw = skb_push(skb2, sizeof(struct iphdr));
+ skb2->nh.iph->ihl = sizeof(struct iphdr)>>2;
+ skb2->nh.iph->saddr = rt->rt_src;
+ skb2->nh.iph->daddr = rt->rt_dst;
+ skb2->nh.iph->version = 0;
+ err = ipmr_cache_unresolved(vif, skb2);
read_unlock(&mrt_lock);
return err;
}
{
mrt_cachep = kmem_cache_create("ip_mrt_cache",
sizeof(struct mfc_cache),
- 0, SLAB_HWCACHE_ALIGN,
+ 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC,
NULL, NULL);
- if (!mrt_cachep)
- panic("cannot allocate ip_mrt_cache");
-
init_timer(&ipmr_expire_timer);
ipmr_expire_timer.function=ipmr_expire_process;
register_netdevice_notifier(&ip_mr_notifier);