2 #include <linux/types.h>
3 #include <linux/mroute.h>
4 #include <netinet/ip.h>
5 #include <netinet/igmp.h>
7 static inline u_short
ip_data_len(const struct ip
*ip
)
9 return ntohs(ip
->ip_len
) - (ip
->ip_hl
<< 2);
12 static inline void ip_set_len(struct ip
*ip
, u_short len
)
14 ip
->ip_len
= htons(len
);