31 #define UDP_HLEN	(sizeof(struct udphdr))
101 static uint16_t udp_checksum(struct ip *iphdr, struct udphdr *udphdr)  in udp_checksum()  argument
108 	sum = raw_checksum((uint8_t *)udphdr, UDP_HLEN, sum);  in udp_checksum()
117 static uint16_t udp6_checksum(struct ip6_hdr *iphdr, struct udphdr *udphdr)  in udp6_checksum()  argument
124 	sum = raw_checksum((uint8_t *)&udphdr->len, sizeof(udphdr->len), sum);  in udp6_checksum()
125 	sum = raw_checksum((uint8_t *)udphdr, UDP_HLEN, sum);  in udp6_checksum()
144 		struct udphdr udphdr;  in send_fragment()  local
145 		udphdr.source = htons(cfg_port + 1);  in send_fragment()
146 		udphdr.dest = htons(cfg_port);  in send_fragment()
147 		udphdr.len = htons(UDP_HLEN + payload_len);  in send_fragment()
148 		udphdr.check = 0;  in send_fragment()
150 			udphdr.check = udp6_checksum((struct ip6_hdr *)ip_frame, &udphdr);  in send_fragment()
152 			udphdr.check = udp_checksum((struct ip *)ip_frame, &udphdr);  in send_fragment()
153 		memcpy(frag_start, &udphdr, UDP_HLEN);  in send_fragment()