248 	const struct dccp_hdr *dh;  in dccp_v4_err()  local
257 	if (!pskb_may_pull(skb, offset + sizeof(*dh)))  in dccp_v4_err()
259 	dh = (struct dccp_hdr *)(skb->data + offset);  in dccp_v4_err()
260 	if (!pskb_may_pull(skb, offset + __dccp_basic_hdr_len(dh)))  in dccp_v4_err()
263 	dh = (struct dccp_hdr *)(skb->data + offset);  in dccp_v4_err()
266 				       iph->daddr, dh->dccph_dport,  in dccp_v4_err()
267 				       iph->saddr, ntohs(dh->dccph_sport),  in dccp_v4_err()
278 	seq = dccp_hdr_seq(dh);  in dccp_v4_err()
384 	struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_send_check()  local
387 	dh->dccph_checksum = dccp_v4_csum_finish(skb,  in dccp_v4_send_check()
506 		struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_send_response()  local
508 		dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,  in dccp_v4_send_response()
675 	struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_do_rcv()  local
678 		if (dccp_rcv_established(sk, skb, dh, skb->len))  in dccp_v4_do_rcv()
707 	if (dccp_rcv_state_process(sk, skb, dh, skb->len))  in dccp_v4_do_rcv()
727 	const struct dccp_hdr *dh;  in dccp_invalid_packet()  local
740 	dh = dccp_hdr(skb);  in dccp_invalid_packet()
743 	if (dh->dccph_type >= DCCP_PKT_INVALID) {  in dccp_invalid_packet()
751 	dccph_doff = dh->dccph_doff;  in dccp_invalid_packet()
763 	dh = dccp_hdr(skb);  in dccp_invalid_packet()
768 	if ((dh->dccph_type < DCCP_PKT_DATA    ||  in dccp_invalid_packet()
769 	    dh->dccph_type > DCCP_PKT_DATAACK) && dh->dccph_x == 0)  {  in dccp_invalid_packet()
771 			  dccp_packet_name(dh->dccph_type));  in dccp_invalid_packet()
782 			  dh->dccph_cscov, skb->len);  in dccp_invalid_packet()
797 	const struct dccp_hdr *dh;  in dccp_v4_rcv()  local
815 	dh = dccp_hdr(skb);  in dccp_v4_rcv()
817 	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(dh);  in dccp_v4_rcv()
818 	DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;  in dccp_v4_rcv()
821 		      dccp_packet_name(dh->dccph_type),  in dccp_v4_rcv()
822 		      &iph->saddr, ntohs(dh->dccph_sport),  in dccp_v4_rcv()
823 		      &iph->daddr, ntohs(dh->dccph_dport),  in dccp_v4_rcv()
836 	sk = __inet_lookup_skb(&dccp_hashinfo, skb, __dccp_hdr_len(dh),  in dccp_v4_rcv()
837 			       dh->dccph_sport, dh->dccph_dport, 0, &refcounted);  in dccp_v4_rcv()
888 	if (dh->dccph_cscov && (min_cov == 0 || dh->dccph_cscov < min_cov))  {  in dccp_v4_rcv()
890 			      dh->dccph_cscov, min_cov);  in dccp_v4_rcv()
901 	return __sk_receive_skb(sk, skb, 1, dh->dccph_doff * 4, refcounted);  in dccp_v4_rcv()
912 	if (dh->dccph_type != DCCP_PKT_RESET) {  in dccp_v4_rcv()