[INET]: Consolidate xxx_frag_intern
This routine checks for the existence of a given entry
in the hash table and inserts the new one if needed.
The ->equal callback is used to compare two frag_queue-s
together, but this one is temporary and will be removed
later. The netfilter code and the ipv6 one use the same
routine to compare frags.
The inet_frag_intern() always returns non-NULL pointer,
so convert the inet_frag_queue into protocol specific
one (with the container_of) without any checks.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index 911c2cd..133e187 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -41,6 +41,8 @@
unsigned int (*hashfn)(struct inet_frag_queue *);
void (*destructor)(struct inet_frag_queue *);
void (*skb_free)(struct sk_buff *);
+ int (*equal)(struct inet_frag_queue *q1,
+ struct inet_frag_queue *q2);
};
void inet_frags_init(struct inet_frags *);
@@ -50,6 +52,8 @@
void inet_frag_destroy(struct inet_frag_queue *q,
struct inet_frags *f, int *work);
int inet_frag_evictor(struct inet_frags *f);
+struct inet_frag_queue *inet_frag_intern(struct inet_frag_queue *q,
+ struct inet_frags *f, unsigned int hash);
static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f)
{
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index cc796cb..ff12697 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -377,6 +377,9 @@
prefixlen);
}
+struct inet_frag_queue;
+int ip6_frag_equal(struct inet_frag_queue *q1, struct inet_frag_queue *q2);
+
static inline int ipv6_addr_any(const struct in6_addr *a)
{
return ((a->s6_addr32[0] | a->s6_addr32[1] |