/* $NetBSD: trace.h,v 1.2 1999/08/19 17:31:08 itojun Exp $ */ /* * Copyright (C) 1999 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Copyright (c) 1998 by the University of Southern California. * All rights reserved. * * Permission to use, copy, modify, and distribute this software and * its documentation in source and binary forms for lawful * purposes and without fee is hereby granted, provided * that the above copyright notice appear in all copies and that both * the copyright notice and this permission notice appear in supporting * documentation, and that any documentation, advertising materials, * and other materials related to such distribution and use acknowledge * that the software was developed by the University of Southern * California and/or Information Sciences Institute. * The name of the University of Southern California may not * be used to endorse or promote products derived from this software * without specific prior written permission. * * THE UNIVERSITY OF SOUTHERN CALIFORNIA DOES NOT MAKE ANY REPRESENTATIONS * ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND * NON-INFRINGEMENT. * * IN NO EVENT SHALL USC, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT, * TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH, * THE USE OR PERFORMANCE OF THIS SOFTWARE. * * Other copyrights might apply to parts of this software and are so * noted when applicable. */ /* * Questions concerning this software should be directed to * Pavlin Ivanov Radoslavov (pavlin@catarina.usc.edu) * * KAME Id: trace.h,v 1.1.1.1 1999/08/08 23:30:55 itojun Exp */ /* * Part of this program has been derived from mrouted. * The mrouted program is covered by the license in the accompanying file * named "LICENSE.mrouted". * * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of * Leland Stanford Junior University. * */ /* * The packet format for a traceroute request. */ struct tr_query { struct in6_addr tr_src; /* traceroute source */ struct in6_addr tr_dst; /* traceroute destination */ struct in6_addr tr_raddr; /* traceroute response address */ #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN) struct { u_int qid : 24; /* traceroute query id */ u_int rhlim : 8; /* traceroute response ttl */ } q; #else struct { u_int rhlim : 8; /* traceroute response ttl */ u_int qid : 24; /* traceroute query id */ } q; #endif /* BYTE_ORDER */ }; #define tr_rhlim q.rhlim #define tr_qid q.qid /* * Traceroute response format. A traceroute response has a tr_query at the * beginning, followed by one tr_resp for each hop taken. */ struct tr_resp { u_int32 tr_qarr; /* query arrival time */ struct in6_addr tr_inaddr; /* incoming interface address */ struct in6_addr tr_outaddr; /* outgoing interface address */ struct in6_addr tr_rmtaddr; /* parent address in source tree */ u_int32 tr_vifin; /* input packet count on interface */ u_int32 tr_vifout; /* output packet count on interface */ u_int32 tr_pktcnt; /* total incoming packets for src-grp */ u_char tr_rproto; /* routing protocol deployed on router */ u_char tr_fhlim; /* hop limit required to forward on outvif */ u_char tr_smask; /* subnet mask for src addr */ u_char tr_rflags; /* forwarding error codes */ }; /* defs within mtrace */ #define QUERY 1 #define RESP 2 #define QLEN sizeof(struct tr_query) #define RLEN sizeof(struct tr_resp) /* fields for tr_rflags (forwarding error codes) */ #define TR_NO_ERR 0 /* No error */ #define TR_WRONG_IF 1 /* traceroute arrived on non-oif */ #define TR_PRUNED 2 /* router has sent a prune upstream */ #define TR_OPRUNED 3 /* stop forw. after request from next hop rtr*/ #define TR_SCOPED 4 /* group adm. scoped at this hop */ #define TR_NO_RTE 5 /* no route for the source */ #define TR_NO_LHR 6 /* not the last-hop router */ #define TR_NO_FWD 7 /* not forwarding for this (S,G). Reason = ? */ #define TR_RP 8 /* I am the RP/Core */ #define TR_IIF 9 /* request arrived on the iif */ #define TR_NO_MULTI 0x0a /* multicast disabled on that interface */ #define TR_NO_SPACE 0x81 /* no space to insert responce data block */ #define TR_OLD_ROUTER 0x82 /* previous hop does not support traceroute */ #define TR_ADMIN_PROHIB 0x83 /* traceroute adm. prohibited */ /* fields for tr_smask */ #define TR_GROUP_ONLY 0x2f /* forwarding solely on group state */ #define TR_SUBNET_COUNT 0x40 /* pkt count for (S,G) is for source network */ /* fields for packets count */ #define TR_CANT_COUNT 0xffffffff /* no count can be reported */ /* fields for tr_rproto (routing protocol) */ #define PROTO_DVMRP 1 #define PROTO_MOSPF 2 #define PROTO_PIM 3 #define PROTO_CBT 4 #define PROTO_PIM_SPECIAL 5 #define PROTO_PIM_STATIC 6 #define PROTO_DVMRP_STATIC 7 #define MASK_TO_VAL(x, i) { \ u_int32 _x = ntohl(x); \ (i) = 1; \ while ((_x) <<= 1) \ (i)++; \ }; #define VAL_TO_MASK(x, i) { \ x = htonl(~((1 << (32 - (i))) - 1)); \ }; #define MASKLEN_TO_MASK6(masklen, mask6) \ do {\ u_char maskarray[8] = \ {0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff}; \ int bytelen, bitlen, i; \ memset(&(mask6), 0, sizeof(mask6));\ bytelen = (masklen) / 8;\ bitlen = (masklen) % 8;\ for (i = 0; i < bytelen; i++) \ (mask6).s6_addr[i] = 0xff;\ if (bitlen) \ (mask6).s6_addr[bytelen] = maskarray[bitlen - 1]; \ }while(0); #define NBR_VERS(n) (((n)->al_pv << 8) + (n)->al_mv)