461 			    enum ip_conntrack_dir dir)  in tcp_init_sender()  argument
475 	if (dir == IP_CT_DIR_REPLY &&  in tcp_init_sender()
510 tcp_in_window(struct nf_conn *ct, enum ip_conntrack_dir dir,  in tcp_in_window()  argument
516 	struct ip_ct_tcp_state *sender = &state->seen[dir];  in tcp_in_window()
517 	struct ip_ct_tcp_state *receiver = &state->seen[!dir];  in tcp_in_window()
536 	receiver_offset = nf_ct_seq_offset(ct, !dir, ack - 1);  in tcp_in_window()
547 					end, win, dir);  in tcp_in_window()
590 				end, win, dir);  in tcp_in_window()
592 		if (dir == IP_CT_DIR_REPLY && !tcph->ack)  in tcp_in_window()
703 		if (state->last_dir == dir &&  in tcp_in_window()
710 			state->last_dir = dir;  in tcp_in_window()
723 					 enum ip_conntrack_dir dir,  in nf_tcp_handle_invalid()  argument
753 	if (ct->proto.tcp.last_dir != dir &&  in nf_tcp_handle_invalid()
769 					  index, dir, ct->proto.tcp.last_index, timeout);  in nf_tcp_handle_invalid()
775 		ct->proto.tcp.last_dir = dir;  in nf_tcp_handle_invalid()
973 	enum ip_conntrack_dir dir;  in nf_conntrack_tcp_packet()  local
990 	dir = CTINFO2DIR(ctinfo);  in nf_conntrack_tcp_packet()
992 	new_state = tcp_conntracks[dir][index][old_state];  in nf_conntrack_tcp_packet()
1010 		if (((ct->proto.tcp.seen[dir].flags  in nf_conntrack_tcp_packet()
1011 		      | ct->proto.tcp.seen[!dir].flags)  in nf_conntrack_tcp_packet()
1013 		    || (ct->proto.tcp.last_dir == dir  in nf_conntrack_tcp_packet()
1044 		    && ct->proto.tcp.last_dir != dir  in nf_conntrack_tcp_packet()
1066 			nf_ct_tcp_state_reset(&ct->proto.tcp.seen[dir]);  in nf_conntrack_tcp_packet()
1070 		ct->proto.tcp.last_dir = dir;  in nf_conntrack_tcp_packet()
1083 		if (index == TCP_SYN_SET && dir == IP_CT_DIR_ORIGINAL) {  in nf_conntrack_tcp_packet()
1110 		    dir == IP_CT_DIR_REPLY)  in nf_conntrack_tcp_packet()
1116 					  index, dir,  in nf_conntrack_tcp_packet()
1127 		    index == TCP_ACK_SET && dir == IP_CT_DIR_ORIGINAL &&  in nf_conntrack_tcp_packet()
1129 		    ct->proto.tcp.seen[dir].td_end - 1 == ntohl(th->seq)) {  in nf_conntrack_tcp_packet()
1139 					  index, dir,  in nf_conntrack_tcp_packet()
1149 		    ct->proto.tcp.last_dir != dir &&  in nf_conntrack_tcp_packet()
1166 		if (dir == IP_CT_DIR_REPLY && index == TCP_ACK_SET &&  in nf_conntrack_tcp_packet()
1185 		if ((ct->proto.tcp.seen[!dir].flags & IP_CT_TCP_FLAG_MAXACK_SET) &&  in nf_conntrack_tcp_packet()
1196 			if (before(seq, ct->proto.tcp.seen[!dir].td_maxack) &&  in nf_conntrack_tcp_packet()
1205 			    seq == ct->proto.tcp.seen[!dir].td_maxack)  in nf_conntrack_tcp_packet()
1213 			    ct->proto.tcp.last_dir == dir &&  in nf_conntrack_tcp_packet()
1252 	res = tcp_in_window(ct, dir, index,  in nf_conntrack_tcp_packet()
1259 		nf_tcp_handle_invalid(ct, dir, index, skb, state);  in nf_conntrack_tcp_packet()
1268 	ct->proto.tcp.last_dir = dir;  in nf_conntrack_tcp_packet()
1273 		ct->proto.tcp.seen[dir].flags |= IP_CT_TCP_FLAG_CLOSE_INIT;  in nf_conntrack_tcp_packet()