206 static int udp_input_checksum(struct mbuf *, struct udphdr *, int, int);
275 	struct udphdr *uh;  in udp_input()
328 	if (m->m_len < iphlen + sizeof(struct udphdr)) {  in udp_input()
329 		m = m_pullup(m, iphlen + sizeof(struct udphdr));  in udp_input()
338 	uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
355 		if (len > ip->ip_len || len < sizeof(struct udphdr)) {  in udp_input()
528 				    iphlen + sizeof(struct udphdr),  in udp_input()
557 			uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
605 			int payload_len = len - sizeof(struct udphdr) > 4 ? 4 :  in udp_input()
606 			    len - sizeof(struct udphdr);  in udp_input()
608 			if (m->m_len < iphlen + sizeof(struct udphdr) + payload_len) {  in udp_input()
609 				if ((m = m_pullup(m, iphlen + sizeof(struct udphdr) +  in udp_input()
623 				uh = (struct udphdr *)(void *)((caddr_t)ip + iphlen);  in udp_input()
627 			    ((caddr_t)uh + sizeof(struct udphdr)) == 0xFF) {  in udp_input()
633 			    ((caddr_t)uh + sizeof(struct udphdr)) != 0) {  in udp_input()
638 				esp4_input(m, iphlen + sizeof(struct udphdr));  in udp_input()
740 	m_adj(m, iphlen + sizeof(struct udphdr));  in udp_input()
914 		struct udphdr uh;  in udp_ctlinput()
1572 	    (htons((u_short)len + sizeof(struct udphdr))));  in udp_output()
1806 	ui->ui_ulen = htons((u_short)len + sizeof(struct udphdr));  in udp_output()
1840 		    htons((u_short)len + sizeof(struct udphdr) + IPPROTO_UDP));  in udp_output()
1842 		m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);  in udp_output()
2083 				sizeof(struct udphdr) +  in udp_output()
2706 udp_input_checksum(struct mbuf *m, struct udphdr *uh, int off, int ulen)  in udp_input_checksum()
2895 			    sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
2901 			if ((sizeof(struct ip6_hdr) + sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
2918 			struct udphdr *udp;  in udp_fill_keepalive_offload_frames()
2963 			udp->uh_ulen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
2969 				    htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
2974 				m->m_pkthdr.csum_data = offsetof(struct udphdr,  in udp_fill_keepalive_offload_frames()
2983 			struct udphdr *udp6;  in udp_fill_keepalive_offload_frames()
2989 			    sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3003 			bzero(data, sizeof(struct ip6_hdr) + sizeof(struct udphdr));  in udp_fill_keepalive_offload_frames()
3008 			    sizeof(struct udphdr);  in udp_fill_keepalive_offload_frames()
3010 			    sizeof(struct udphdr));  in udp_fill_keepalive_offload_frames()
3024 			ip6->ip6_plen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3038 			udp6->uh_ulen = htons(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3043 				    htonl(sizeof(struct udphdr) +  in udp_fill_keepalive_offload_frames()
3048 				m->m_pkthdr.csum_data = offsetof(struct udphdr,  in udp_fill_keepalive_offload_frames()