250 	const struct dccp_hdr *dh;  in dccp_v4_err()  local
259 	if (!pskb_may_pull(skb, offset + sizeof(*dh)))  in dccp_v4_err()
261 	dh = (struct dccp_hdr *)(skb->data + offset);  in dccp_v4_err()
262 	if (!pskb_may_pull(skb, offset + __dccp_basic_hdr_len(dh)))  in dccp_v4_err()
265 	dh = (struct dccp_hdr *)(skb->data + offset);  in dccp_v4_err()
268 				       iph->daddr, dh->dccph_dport,  in dccp_v4_err()
269 				       iph->saddr, ntohs(dh->dccph_sport),  in dccp_v4_err()
280 	seq = dccp_hdr_seq(dh);  in dccp_v4_err()
386 	struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_send_check()  local
389 	dh->dccph_checksum = dccp_v4_csum_finish(skb,  in dccp_v4_send_check()
508 		struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_send_response()  local
510 		dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,  in dccp_v4_send_response()
678 	struct dccp_hdr *dh = dccp_hdr(skb);  in dccp_v4_do_rcv()  local
681 		if (dccp_rcv_established(sk, skb, dh, skb->len))  in dccp_v4_do_rcv()
710 	if (dccp_rcv_state_process(sk, skb, dh, skb->len))  in dccp_v4_do_rcv()
730 	const struct dccp_hdr *dh;  in dccp_invalid_packet()  local
743 	dh = dccp_hdr(skb);  in dccp_invalid_packet()
746 	if (dh->dccph_type >= DCCP_PKT_INVALID) {  in dccp_invalid_packet()
754 	dccph_doff = dh->dccph_doff;  in dccp_invalid_packet()
766 	dh = dccp_hdr(skb);  in dccp_invalid_packet()
771 	if ((dh->dccph_type < DCCP_PKT_DATA    ||  in dccp_invalid_packet()
772 	    dh->dccph_type > DCCP_PKT_DATAACK) && dh->dccph_x == 0)  {  in dccp_invalid_packet()
774 			  dccp_packet_name(dh->dccph_type));  in dccp_invalid_packet()
785 			  dh->dccph_cscov, skb->len);  in dccp_invalid_packet()
800 	const struct dccp_hdr *dh;  in dccp_v4_rcv()  local
818 	dh = dccp_hdr(skb);  in dccp_v4_rcv()
820 	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(dh);  in dccp_v4_rcv()
821 	DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;  in dccp_v4_rcv()
824 		      dccp_packet_name(dh->dccph_type),  in dccp_v4_rcv()
825 		      &iph->saddr, ntohs(dh->dccph_sport),  in dccp_v4_rcv()
826 		      &iph->daddr, ntohs(dh->dccph_dport),  in dccp_v4_rcv()
839 	sk = __inet_lookup_skb(&dccp_hashinfo, skb, __dccp_hdr_len(dh),  in dccp_v4_rcv()
840 			       dh->dccph_sport, dh->dccph_dport, 0, &refcounted);  in dccp_v4_rcv()
891 	if (dh->dccph_cscov && (min_cov == 0 || dh->dccph_cscov < min_cov))  {  in dccp_v4_rcv()
893 			      dh->dccph_cscov, min_cov);  in dccp_v4_rcv()
904 	return __sk_receive_skb(sk, skb, 1, dh->dccph_doff * 4, refcounted);  in dccp_v4_rcv()
915 	if (dh->dccph_type != DCCP_PKT_RESET) {  in dccp_v4_rcv()