5 #ifdef HAVE_VISIBILITY_HIDDEN
6 # define __visible __attribute__((visibility("default")))
7 # define EXPORT_SYMBOL(x) typeof(x) (x) __visible
15 uint16_t checksum(uint32_t sum, uint16_t *buf, int size);
16 uint16_t checksum_tcpudp_ipv4(struct iphdr *iph);
17 uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr);
21 uint8_t *network_header;
22 uint8_t *transport_header;