1 #ifndef GNUNET_VPN_CHECKSUM_H
3 #define GNUNET_VPN_CHECKSUM_H
8 calculate_checksum_update (uint32_t sum, uint16_t * hdr, short len);
11 calculate_checksum_end (uint32_t sum);
14 * Calculate the checksum of an IPv4-Header
17 calculate_ip_checksum (uint16_t * hdr, short len);
19 #endif /* end of include guard: GNUNET-VPN-CHECKSUM_H */