1 /* tcpip.h 4.1 81/11/29 */ 2 3 /* 4 * Tcp+ip header, after ip options removed. 5 */ 6 struct tcpiphdr { 7 struct ipovly ti_i; /* overlaid ip structure */ 8 struct tcphdr ti_t; /* tcp header */ 9 }; 10 #define ti_next ti_i.ih_next 11 #define ti_prev ti_i.ih_prev 12 #define ti_x1 ti_i.ih_x1 13 #define ti_pr ti_i.ih_pr 14 #define ti_len ti_i.ih_len 15 #define ti_src ti_i.ih_src 16 #define ti_dst ti_i.ih_dst 17 #define ti_sport ti_t.th_sport 18 #define ti_dport ti_t.th_dport 19 #define ti_seq ti_t.th_seq 20 #define ti_ack ti_t.th_ack 21 #define ti_x2 ti_t.th_x2 22 #define ti_off ti_t.th_off 23 #define ti_flags ti_t.th_flags 24 #define ti_win ti_t.th_win 25 #define ti_sum ti_t.th_sum 26 #define ti_urp ti_t.th_urp 27