214 static int udp_input_checksum(struct mbuf *, struct udphdr *, int, int);
302 	struct udphdr *uh;  in udp_input()
361 	if (m->m_len < iphlen + sizeof(struct udphdr)) {  in udp_input()
362 		m = m_pullup(m, iphlen + sizeof(struct udphdr));  in udp_input()
371 	uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
389 		if (len > ip->ip_len || len < sizeof(struct udphdr)) {  in udp_input()
565 				    iphlen + sizeof(struct udphdr),  in udp_input()
599 			uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
652 			int payload_len = len - sizeof(struct udphdr) > 4 ? 4 :  in udp_input()
653 			    len - sizeof(struct udphdr);  in udp_input()
655 			if (m->m_len < iphlen + sizeof(struct udphdr) + payload_len) {  in udp_input()
656 				if ((m = m_pullup(m, iphlen + sizeof(struct udphdr) +  in udp_input()
670 				uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
674 			    ((caddr_t)uh + sizeof(struct udphdr)) == 0xFF) {  in udp_input()
680 			    ((caddr_t)uh + sizeof(struct udphdr)) != 0) {  in udp_input()
685 				esp4_input(m, iphlen + sizeof(struct udphdr));  in udp_input()
790 	m_adj(m, iphlen + sizeof(struct udphdr));  in udp_input()
983 		struct udphdr uh;  in udp_ctlinput()
1654 	    (htons((u_short)len + sizeof(struct udphdr))));  in udp_output()
1892 	ui->ui_ulen = htons((u_short)len + sizeof(struct udphdr));  in udp_output()
1926 		    htons((u_short)len + sizeof(struct udphdr) + IPPROTO_UDP));  in udp_output()
1928 		m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);  in udp_output()
2172 				sizeof(struct udphdr) +  in udp_output()
2824 udp_input_checksum(struct mbuf *m, struct udphdr *uh, int off, int ulen)  in udp_input_checksum()
3013 			    sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3019 			if ((sizeof(struct ip6_hdr) + sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3036 			struct udphdr *udp;  in udp_fill_keepalive_offload_frames()
3081 			udp->uh_ulen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3087 				    htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3092 				m->m_pkthdr.csum_data = offsetof(struct udphdr,  in udp_fill_keepalive_offload_frames()
3101 			struct udphdr *udp6;  in udp_fill_keepalive_offload_frames()
3107 			    sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3121 			bzero(data, sizeof(struct ip6_hdr) + sizeof(struct udphdr));  in udp_fill_keepalive_offload_frames()
3126 			    sizeof(struct udphdr);  in udp_fill_keepalive_offload_frames()
3128 			    sizeof(struct udphdr));  in udp_fill_keepalive_offload_frames()
3142 			ip6->ip6_plen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3156 			udp6->uh_ulen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3161 				    htonl(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3166 				m->m_pkthdr.csum_data = offsetof(struct udphdr,  in udp_fill_keepalive_offload_frames()