#endif
#ifdef __KERNEL__
-#include <linux/config.h>
#ifdef CONFIG_NETFILTER
extern void netfilter_init(void);
Returns true or false. */
extern int skb_make_writable(struct sk_buff **pskb, unsigned int writable_len);
-struct nf_queue_rerouter {
- void (*save)(const struct sk_buff *skb, struct nf_info *info);
- int (*reroute)(struct sk_buff **skb, const struct nf_info *info);
- int rer_size;
+extern u_int16_t nf_csum_update(u_int32_t oldval, u_int32_t newval,
+ u_int32_t csum);
+extern u_int16_t nf_proto_csum_update(struct sk_buff *skb,
+ u_int32_t oldval, u_int32_t newval,
+ u_int16_t csum, int pseudohdr);
+
+struct nf_afinfo {
+ unsigned short family;
+ unsigned int (*checksum)(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, u_int8_t protocol);
+ void (*saveroute)(const struct sk_buff *skb,
+ struct nf_info *info);
+ int (*reroute)(struct sk_buff **skb,
+ const struct nf_info *info);
+ int route_key_size;
};
-#define nf_info_reroute(x) ((void *)x + sizeof(struct nf_info))
+extern struct nf_afinfo *nf_afinfo[];
+static inline struct nf_afinfo *nf_get_afinfo(unsigned short family)
+{
+ return rcu_dereference(nf_afinfo[family]);
+}
+
+static inline unsigned int
+nf_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff,
+ u_int8_t protocol, unsigned short family)
+{
+ struct nf_afinfo *afinfo;
+ unsigned int csum = 0;
+
+ rcu_read_lock();
+ afinfo = nf_get_afinfo(family);
+ if (afinfo)
+ csum = afinfo->checksum(skb, hook, dataoff, protocol);
+ rcu_read_unlock();
+ return csum;
+}
-extern int nf_register_queue_rerouter(int pf, struct nf_queue_rerouter *rer);
-extern int nf_unregister_queue_rerouter(int pf);
+extern int nf_register_afinfo(struct nf_afinfo *afinfo);
+extern void nf_unregister_afinfo(struct nf_afinfo *afinfo);
+
+#define nf_info_reroute(x) ((void *)x + sizeof(struct nf_info))
#include <net/flow.h>
extern void (*ip_nat_decode_session)(struct sk_buff *, struct flowi *);