214 static int udp_input_checksum(struct mbuf *, struct udphdr *, int, int);
333 	struct udphdr *uh;  in udp_input()
392 	if (m->m_len < iphlen + sizeof(struct udphdr)) {  in udp_input()
393 		m = m_pullup(m, iphlen + sizeof(struct udphdr));  in udp_input()
402 	uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
420 		if (len > ip->ip_len || len < sizeof(struct udphdr)) {  in udp_input()
596 				    iphlen + sizeof(struct udphdr),  in udp_input()
630 			uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
683 			int payload_len = len - sizeof(struct udphdr) > 4 ? 4 :  in udp_input()
684 			    len - sizeof(struct udphdr);  in udp_input()
686 			if (m->m_len < iphlen + sizeof(struct udphdr) + payload_len) {  in udp_input()
687 				if ((m = m_pullup(m, iphlen + sizeof(struct udphdr) +  in udp_input()
701 				uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
705 			    ((caddr_t)uh + sizeof(struct udphdr)) == 0xFF) {  in udp_input()
711 			    ((caddr_t)uh + sizeof(struct udphdr)) != 0) {  in udp_input()
716 				esp4_input(m, iphlen + sizeof(struct udphdr));  in udp_input()
827 	m_adj(m, iphlen + sizeof(struct udphdr));  in udp_input()
1020 		struct udphdr uh;  in udp_ctlinput()
1691 	    (htons((u_short)len + sizeof(struct udphdr))));  in udp_output()
1929 	ui->ui_ulen = htons((u_short)len + sizeof(struct udphdr));  in udp_output()
1963 		    htons((u_short)len + sizeof(struct udphdr) + IPPROTO_UDP));  in udp_output()
1965 		m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);  in udp_output()
2209 				sizeof(struct udphdr) +  in udp_output()
2861 udp_input_checksum(struct mbuf *m, struct udphdr *uh, int off, int ulen)  in udp_input_checksum()
3050 			    sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3056 			if ((sizeof(struct ip6_hdr) + sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3073 			struct udphdr *udp;  in udp_fill_keepalive_offload_frames()
3118 			udp->uh_ulen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3124 				    htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3129 				m->m_pkthdr.csum_data = offsetof(struct udphdr,  in udp_fill_keepalive_offload_frames()
3138 			struct udphdr *udp6;  in udp_fill_keepalive_offload_frames()
3144 			    sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3158 			bzero(data, sizeof(struct ip6_hdr) + sizeof(struct udphdr));  in udp_fill_keepalive_offload_frames()
3163 			    sizeof(struct udphdr);  in udp_fill_keepalive_offload_frames()
3165 			    sizeof(struct udphdr));  in udp_fill_keepalive_offload_frames()
3179 			ip6->ip6_plen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3193 			udp6->uh_ulen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3198 				    htonl(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3203 				m->m_pkthdr.csum_data = offsetof(struct udphdr,  in udp_fill_keepalive_offload_frames()