1 /*- 2 * Copyright (c) 1992 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)tuba_table.h 7.6 (Berkeley) 11/08/92 8 */ 9 10 struct tuba_cache { 11 struct radix_node tc_nodes[2]; /* convenient lookup */ 12 int tc_refcnt; 13 int tc_time; /* last looked up */ 14 int tc_flags; 15 #define TCF_PERM 1 16 int tc_index; 17 u_short tc_sum_in; /* for inbound cksum */ 18 u_short tc_sum_out; /* for outbound cksum */ 19 struct sockaddr_iso tc_siso; /* for responding */ 20 char tc_EID[7]; /* what counts for lookups */ 21 }; 22 23 #define ADDCARRY(x) (x >= 65535 ? x -= 65535 : x) 24 #define REDUCE(a, b) { union { u_short s[2]; long l;} l_util; long x; \ 25 l_util.l = (b); x = l_util.s[0] + l_util.s[1]; ADDCARRY(x); a = x;} 26 27 #ifdef KERNEL 28 extern int tuba_table_size; 29 extern struct tuba_cache **tuba_table; 30 extern struct radix_node_head *tuba_tree; 31 #endif 32