static void skb_release_head_state(struct sk_buff *skb)
{
skb_dst_drop(skb);
#ifdef CONFIG_XFRM
secpath_put(skb->sp);
#endif
if (skb->destructor)
{
// WARN_ON(in_irq());
skb->destructor(skb);
}
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
nf_conntrack_put(skb->nfct);
#endif
#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
nf_conntrack_put_reasm(skb->nfct_reasm);
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
nf_bridge_put(skb->nf_bridge);
#endif
/* XXX: IS this still necessary? - JHS */
#ifdef CONFIG_NET_SCHED
skb->tc_index = 0;
#ifdef CONFIG_NET_CLS_ACT
skb->tc_verd = 0;
#endif
#endif
}
void __kfree_skb(struct sk_buff *skb)
{
dst_release(skb->dst);
#ifdef CONFIG_XFRM
secpath_put(skb->sp);
#endif
if (skb->destructor) {
WARN_ON(in_irq());
skb->destructor(skb);
}
#ifdef CONFIG_NETFILTER
nf_conntrack_put(skb->nfct);
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
nf_conntrack_put_reasm(skb->nfct_reasm);
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
nf_bridge_put(skb->nf_bridge);
#endif
#endif
/* XXX: IS this still necessary? - JHS */
#ifdef CONFIG_NET_SCHED
skb->tc_index = 0;
#ifdef CONFIG_NET_CLS_ACT
skb->tc_verd = 0;
#endif
#endif
kfree_skbmem(skb);
}
static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
{
to->pkt_type = from->pkt_type;
to->priority = from->priority;
to->protocol = from->protocol;
dst_release(to->dst);
to->dst = dst_clone(from->dst);
to->dev = from->dev;
#ifdef CONFIG_NET_SCHED
to->tc_index = from->tc_index;
#endif
#ifdef CONFIG_NETFILTER
to->nfmark = from->nfmark;
/* Connection association is same as pre-frag packet */
nf_conntrack_put(to->nfct);
to->nfct = from->nfct;
nf_conntrack_get(to->nfct);
to->nfctinfo = from->nfctinfo;
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
nf_conntrack_put_reasm(to->nfct_reasm);
to->nfct_reasm = from->nfct_reasm;
nf_conntrack_get_reasm(to->nfct_reasm);
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
nf_bridge_put(to->nf_bridge);
to->nf_bridge = from->nf_bridge;
nf_bridge_get(to->nf_bridge);
#endif
#endif
skb_copy_secmark(to, from);
}
void nf_ct_frag6_output(unsigned int hooknum, struct sk_buff *skb,
struct net_device *in, struct net_device *out,
int (*okfn)(struct sk_buff *))
{
struct sk_buff *s, *s2;
for (s = NFCT_FRAG6_CB(skb)->orig; s;) {
nf_conntrack_put_reasm(s->nfct_reasm);
nf_conntrack_get_reasm(skb);
s->nfct_reasm = skb;
s2 = s->next;
NF_HOOK_THRESH(PF_INET6, hooknum, s, in, out, okfn,
NF_IP6_PRI_CONNTRACK_DEFRAG + 1);
s = s2;
}
nf_conntrack_put_reasm(skb);
}