467 	struct tcphdr *tcp_hdr = (struct tcphdr *)tcp_ptr;  in tcp_fillheaders()  local
482 		tcp_hdr->th_sum = 0;  in tcp_fillheaders()
504 		tcp_hdr->th_sum = in_pseudo(ip->ip_src.s_addr,  in tcp_fillheaders()
508 	tcp_hdr->th_sport = inp->inp_lport;  in tcp_fillheaders()
509 	tcp_hdr->th_dport = inp->inp_fport;  in tcp_fillheaders()
510 	tcp_hdr->th_seq = 0;  in tcp_fillheaders()
511 	tcp_hdr->th_ack = 0;  in tcp_fillheaders()
512 	tcp_hdr->th_x2 = 0;  in tcp_fillheaders()
513 	tcp_hdr->th_off = 5;  in tcp_fillheaders()
514 	tcp_hdr->th_flags = 0;  in tcp_fillheaders()
515 	tcp_hdr->th_win = 0;  in tcp_fillheaders()
516 	tcp_hdr->th_urp = 0;  in tcp_fillheaders()