215 	const struct dccp_hdr *dh = (struct dccp_hdr *)(skb->data + offset);  in dccp_v4_err()  local
225 	if (skb->len < offset + sizeof(*dh) ||  in dccp_v4_err()
226 	    skb->len < offset + __dccp_basic_hdr_len(dh)) {  in dccp_v4_err()
232 			iph->daddr, dh->dccph_dport,  in dccp_v4_err()
233 			iph->saddr, dh->dccph_sport, inet_iif(skb));  in dccp_v4_err()
255 	seq = dccp_hdr_seq(dh);  in dccp_v4_err()
296 		req = inet_csk_search_req(sk, &prev, dh->dccph_dport,  in dccp_v4_err()
371 	struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_send_check()  local
374 	dh->dccph_checksum = dccp_v4_csum_finish(skb,  in dccp_v4_send_check()
451 	const struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_hnd_req()  local
457 						       dh->dccph_sport,  in dccp_v4_hnd_req()
463 				      iph->saddr, dh->dccph_sport,  in dccp_v4_hnd_req()
464 				      iph->daddr, dh->dccph_dport,  in dccp_v4_hnd_req()
517 		struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_send_response()  local
519 		dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->loc_addr,  in dccp_v4_send_response()
677 	struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_do_rcv()  local
680 		if (dccp_rcv_established(sk, skb, dh, skb->len))  in dccp_v4_do_rcv()
721 	if (dccp_rcv_state_process(sk, skb, dh, skb->len))  in dccp_v4_do_rcv()
741 	const struct dccp_hdr *dh;  in dccp_invalid_packet()  local
753 	dh = dccp_hdr(skb);  in dccp_invalid_packet()
756 	if (dh->dccph_type >= DCCP_PKT_INVALID) {  in dccp_invalid_packet()
764 	if (dh->dccph_doff < dccp_hdr_len(skb) / sizeof(u32)) {  in dccp_invalid_packet()
765 		DCCP_WARN("P.Data Offset(%u) too small\n", dh->dccph_doff);  in dccp_invalid_packet()
771 	if (!pskb_may_pull(skb, dh->dccph_doff * sizeof(u32))) {  in dccp_invalid_packet()
772 		DCCP_WARN("P.Data Offset(%u) too large\n", dh->dccph_doff);  in dccp_invalid_packet()
780 	if ((dh->dccph_type < DCCP_PKT_DATA    ||  in dccp_invalid_packet()
781 	    dh->dccph_type > DCCP_PKT_DATAACK) && dh->dccph_x == 0)  {  in dccp_invalid_packet()
783 			  dccp_packet_name(dh->dccph_type));  in dccp_invalid_packet()
794 			  dh->dccph_cscov, skb->len);  in dccp_invalid_packet()
810 	const struct dccp_hdr *dh;  in dccp_v4_rcv()  local
827 	dh = dccp_hdr(skb);  in dccp_v4_rcv()
829 	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(dh);  in dccp_v4_rcv()
830 	DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;  in dccp_v4_rcv()
833 		      dccp_packet_name(dh->dccph_type),  in dccp_v4_rcv()
834 		      &iph->saddr, ntohs(dh->dccph_sport),  in dccp_v4_rcv()
835 		      &iph->daddr, ntohs(dh->dccph_dport),  in dccp_v4_rcv()
850 			       dh->dccph_sport, dh->dccph_dport);  in dccp_v4_rcv()
879 	if (dh->dccph_cscov && (min_cov == 0 || dh->dccph_cscov < min_cov))  {  in dccp_v4_rcv()
881 			      dh->dccph_cscov, min_cov);  in dccp_v4_rcv()
903 	if (dh->dccph_type != DCCP_PKT_RESET) {  in dccp_v4_rcv()