386 dccp_new(struct nf_conn *ct, const struct sk_buff *skb,  in dccp_new()  argument
390 	struct net *net = nf_ct_net(ct);  in dccp_new()
411 	ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_CLIENT;  in dccp_new()
412 	ct->proto.dccp.role[IP_CT_DIR_REPLY] = CT_DCCP_ROLE_SERVER;  in dccp_new()
413 	ct->proto.dccp.state = CT_DCCP_NONE;  in dccp_new()
414 	ct->proto.dccp.last_pkt = DCCP_PKT_REQUEST;  in dccp_new()
415 	ct->proto.dccp.last_dir = IP_CT_DIR_ORIGINAL;  in dccp_new()
416 	ct->proto.dccp.handshake_seq = 0;  in dccp_new()
420 	nf_ct_l4proto_log_invalid(skb, ct, hook_state, "%s", msg);  in dccp_new()
467 	    state->net->ct.sysctl_checksum &&  in dccp_error()
514 int nf_conntrack_dccp_packet(struct nf_conn *ct, struct sk_buff *skb,  in nf_conntrack_dccp_packet()  argument
539 	if (!nf_ct_is_confirmed(ct) && !dccp_new(ct, skb, dh, state))  in nf_conntrack_dccp_packet()
543 	    !test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {  in nf_conntrack_dccp_packet()
545 		nf_ct_kill_acct(ct, ctinfo, skb);  in nf_conntrack_dccp_packet()
549 	spin_lock_bh(&ct->lock);  in nf_conntrack_dccp_packet()
551 	role = ct->proto.dccp.role[dir];  in nf_conntrack_dccp_packet()
552 	old_state = ct->proto.dccp.state;  in nf_conntrack_dccp_packet()
561 			ct->proto.dccp.role[dir] = CT_DCCP_ROLE_CLIENT;  in nf_conntrack_dccp_packet()
562 			ct->proto.dccp.role[!dir] = CT_DCCP_ROLE_SERVER;  in nf_conntrack_dccp_packet()
567 			ct->proto.dccp.handshake_seq = dccp_hdr_seq(dh);  in nf_conntrack_dccp_packet()
572 		    dccp_ack_seq(dh) == ct->proto.dccp.handshake_seq)  in nf_conntrack_dccp_packet()
573 			set_bit(IPS_ASSURED_BIT, &ct->status);  in nf_conntrack_dccp_packet()
581 		if (ct->proto.dccp.last_dir == !dir &&  in nf_conntrack_dccp_packet()
582 		    ct->proto.dccp.last_pkt == DCCP_PKT_REQUEST &&  in nf_conntrack_dccp_packet()
584 			ct->proto.dccp.role[!dir] = CT_DCCP_ROLE_CLIENT;  in nf_conntrack_dccp_packet()
585 			ct->proto.dccp.role[dir] = CT_DCCP_ROLE_SERVER;  in nf_conntrack_dccp_packet()
586 			ct->proto.dccp.handshake_seq = dccp_hdr_seq(dh);  in nf_conntrack_dccp_packet()
590 		ct->proto.dccp.last_dir = dir;  in nf_conntrack_dccp_packet()
591 		ct->proto.dccp.last_pkt = type;  in nf_conntrack_dccp_packet()
593 		spin_unlock_bh(&ct->lock);  in nf_conntrack_dccp_packet()
594 		nf_ct_l4proto_log_invalid(skb, ct, state, "%s", "invalid packet");  in nf_conntrack_dccp_packet()
597 		spin_unlock_bh(&ct->lock);  in nf_conntrack_dccp_packet()
598 		nf_ct_l4proto_log_invalid(skb, ct, state, "%s", "invalid state transition");  in nf_conntrack_dccp_packet()
602 	ct->proto.dccp.last_dir = dir;  in nf_conntrack_dccp_packet()
603 	ct->proto.dccp.last_pkt = type;  in nf_conntrack_dccp_packet()
604 	ct->proto.dccp.state = new_state;  in nf_conntrack_dccp_packet()
605 	spin_unlock_bh(&ct->lock);  in nf_conntrack_dccp_packet()
608 		nf_conntrack_event_cache(IPCT_PROTOINFO, ct);  in nf_conntrack_dccp_packet()
610 	timeouts = nf_ct_timeout_lookup(ct);  in nf_conntrack_dccp_packet()
612 		timeouts = nf_dccp_pernet(nf_ct_net(ct))->dccp_timeout;  in nf_conntrack_dccp_packet()
613 	nf_ct_refresh_acct(ct, ctinfo, skb, timeouts[new_state]);  in nf_conntrack_dccp_packet()
618 static bool dccp_can_early_drop(const struct nf_conn *ct)  in dccp_can_early_drop()  argument
620 	switch (ct->proto.dccp.state) {  in dccp_can_early_drop()
633 static void dccp_print_conntrack(struct seq_file *s, struct nf_conn *ct)  in dccp_print_conntrack()  argument
635 	seq_printf(s, "%s ", dccp_state_names[ct->proto.dccp.state]);  in dccp_print_conntrack()
641 			  struct nf_conn *ct, bool destroy)  in dccp_to_nlattr()  argument
645 	spin_lock_bh(&ct->lock);  in dccp_to_nlattr()
649 	if (nla_put_u8(skb, CTA_PROTOINFO_DCCP_STATE, ct->proto.dccp.state))  in dccp_to_nlattr()
656 		       ct->proto.dccp.role[IP_CT_DIR_ORIGINAL]) ||  in dccp_to_nlattr()
658 			 cpu_to_be64(ct->proto.dccp.handshake_seq),  in dccp_to_nlattr()
663 	spin_unlock_bh(&ct->lock);  in dccp_to_nlattr()
668 	spin_unlock_bh(&ct->lock);  in dccp_to_nlattr()
685 static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct)  in nlattr_to_dccp()  argument
706 	spin_lock_bh(&ct->lock);  in nlattr_to_dccp()
707 	ct->proto.dccp.state = nla_get_u8(tb[CTA_PROTOINFO_DCCP_STATE]);  in nlattr_to_dccp()
709 		ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_CLIENT;  in nlattr_to_dccp()
710 		ct->proto.dccp.role[IP_CT_DIR_REPLY] = CT_DCCP_ROLE_SERVER;  in nlattr_to_dccp()
712 		ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_SERVER;  in nlattr_to_dccp()
713 		ct->proto.dccp.role[IP_CT_DIR_REPLY] = CT_DCCP_ROLE_CLIENT;  in nlattr_to_dccp()
716 		ct->proto.dccp.handshake_seq =  in nlattr_to_dccp()
719 	spin_unlock_bh(&ct->lock);  in nlattr_to_dccp()