#include <net/ip6_route.h>
#include <net/xfrm.h>
#include <net/ip6_checksum.h>
+#include <net/netfilter/nf_queue.h>
int ip6_route_me_harder(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct net *net = dev_net(skb_dst(skb)->dev);
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct dst_entry *dst;
struct flowi fl = {
.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
+ .mark = skb->mark,
.nl_u =
{ .ip6_u =
{ .daddr = iph->daddr,
.saddr = iph->saddr, } },
};
- dst = ip6_route_output(skb->sk, &fl);
+ dst = ip6_route_output(net, skb->sk, &fl);
#ifdef CONFIG_XFRM
if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
- xfrm_decode_session(skb, &fl, AF_INET6) == 0)
- if (xfrm_lookup(&skb->dst, &fl, skb->sk, 0))
+ xfrm_decode_session(skb, &fl, AF_INET6) == 0) {
+ struct dst_entry *dst2 = skb_dst(skb);
+
+ if (xfrm_lookup(net, &dst2, &fl, skb->sk, 0)) {
+ skb_dst_set(skb, NULL);
return -1;
+ }
+ skb_dst_set(skb, dst2);
+ }
#endif
if (dst->error) {
- IP6_INC_STATS(IPSTATS_MIB_OUTNOROUTES);
+ IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
LIMIT_NETDEBUG(KERN_DEBUG "ip6_route_me_harder: No more route.\n");
dst_release(dst);
return -EINVAL;
}
/* Drop old route. */
- dst_release(skb->dst);
+ skb_dst_drop(skb);
- skb->dst = dst;
+ skb_dst_set(skb, dst);
return 0;
}
EXPORT_SYMBOL(ip6_route_me_harder);
struct ip6_rt_info {
struct in6_addr daddr;
struct in6_addr saddr;
+ u_int32_t mark;
};
-static void nf_ip6_saveroute(const struct sk_buff *skb, struct nf_info *info)
+static void nf_ip6_saveroute(const struct sk_buff *skb,
+ struct nf_queue_entry *entry)
{
- struct ip6_rt_info *rt_info = nf_info_reroute(info);
+ struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
- if (info->hook == NF_IP6_LOCAL_OUT) {
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ if (entry->hook == NF_INET_LOCAL_OUT) {
+ struct ipv6hdr *iph = ipv6_hdr(skb);
rt_info->daddr = iph->daddr;
rt_info->saddr = iph->saddr;
+ rt_info->mark = skb->mark;
}
}
-static int nf_ip6_reroute(struct sk_buff **pskb, const struct nf_info *info)
+static int nf_ip6_reroute(struct sk_buff *skb,
+ const struct nf_queue_entry *entry)
{
- struct ip6_rt_info *rt_info = nf_info_reroute(info);
+ struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
- if (info->hook == NF_IP6_LOCAL_OUT) {
- struct ipv6hdr *iph = (*pskb)->nh.ipv6h;
+ if (entry->hook == NF_INET_LOCAL_OUT) {
+ struct ipv6hdr *iph = ipv6_hdr(skb);
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
- !ipv6_addr_equal(&iph->saddr, &rt_info->saddr))
- return ip6_route_me_harder(*pskb);
+ !ipv6_addr_equal(&iph->saddr, &rt_info->saddr) ||
+ skb->mark != rt_info->mark)
+ return ip6_route_me_harder(skb);
}
return 0;
}
-unsigned int nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
+static int nf_ip6_route(struct dst_entry **dst, struct flowi *fl)
+{
+ *dst = ip6_route_output(&init_net, NULL, fl);
+ return (*dst)->error;
+}
+
+__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
- struct ipv6hdr *ip6h = skb->nh.ipv6h;
- unsigned int csum = 0;
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ __sum16 csum = 0;
switch (skb->ip_summed) {
- case CHECKSUM_HW:
- if (hook != NF_IP6_PRE_ROUTING && hook != NF_IP6_LOCAL_IN)
+ case CHECKSUM_COMPLETE:
+ if (hook != NF_INET_PRE_ROUTING && hook != NF_INET_LOCAL_IN)
break;
if (!csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
- skb->len - dataoff, protocol,
+ skb->len - dataoff, protocol,
csum_sub(skb->csum,
skb_checksum(skb, 0,
dataoff, 0)))) {
}
/* fall through */
case CHECKSUM_NONE:
- skb->csum = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
+ skb->csum = ~csum_unfold(
+ csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
skb->len - dataoff,
protocol,
csum_sub(0,
skb_checksum(skb, 0,
- dataoff, 0)));
+ dataoff, 0))));
csum = __skb_checksum_complete(skb);
}
return csum;
}
-
EXPORT_SYMBOL(nf_ip6_checksum);
-static struct nf_afinfo nf_ip6_afinfo = {
- .family = AF_INET6,
- .checksum = nf_ip6_checksum,
- .saveroute = nf_ip6_saveroute,
- .reroute = nf_ip6_reroute,
- .route_key_size = sizeof(struct ip6_rt_info),
+static __sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol)
+{
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ __wsum hsum;
+ __sum16 csum = 0;
+
+ switch (skb->ip_summed) {
+ case CHECKSUM_COMPLETE:
+ if (len == skb->len - dataoff)
+ return nf_ip6_checksum(skb, hook, dataoff, protocol);
+ /* fall through */
+ case CHECKSUM_NONE:
+ hsum = skb_checksum(skb, 0, dataoff, 0);
+ skb->csum = ~csum_unfold(csum_ipv6_magic(&ip6h->saddr,
+ &ip6h->daddr,
+ skb->len - dataoff,
+ protocol,
+ csum_sub(0, hsum)));
+ skb->ip_summed = CHECKSUM_NONE;
+ csum = __skb_checksum_complete_head(skb, dataoff + len);
+ if (!csum)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ }
+ return csum;
+};
+
+static const struct nf_afinfo nf_ip6_afinfo = {
+ .family = AF_INET6,
+ .checksum = nf_ip6_checksum,
+ .checksum_partial = nf_ip6_checksum_partial,
+ .route = nf_ip6_route,
+ .saveroute = nf_ip6_saveroute,
+ .reroute = nf_ip6_reroute,
+ .route_key_size = sizeof(struct ip6_rt_info),
};
int __init ipv6_netfilter_init(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff