- uint16_t checksum(uint32_t sum, uint16_t *buf, int size);
--uint16_t checksum_tcpudp_ipv4(struct iphdr *iph);
--uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr);
-+uint16_t checksum_tcpudp_ipv4(struct iphdr *iph, uint16_t protocol_id);
-+uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr, uint16_t protocol_id);
+ uint16_t nfq_checksum(uint32_t sum, uint16_t *buf, int size);
+-uint16_t nfq_checksum_tcpudp_ipv4(struct iphdr *iph);
+-uint16_t nfq_checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr);
++uint16_t nfq_checksum_tcpudp_ipv4(struct iphdr *iph, uint16_t protocol_id);
++uint16_t nfq_checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr, uint16_t protocol_id);