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211 lines
8.0 KiB
C
211 lines
8.0 KiB
C
/*
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* Copyright (C) 1999 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1998 by the University of Southern California.
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation in source and binary forms for lawful
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* purposes and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both
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* the copyright notice and this permission notice appear in supporting
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* documentation, and that any documentation, advertising materials,
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* and other materials related to such distribution and use acknowledge
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* that the software was developed by the University of Southern
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* California and/or Information Sciences Institute.
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* The name of the University of Southern California may not
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THE UNIVERSITY OF SOUTHERN CALIFORNIA DOES NOT MAKE ANY REPRESENTATIONS
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* ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS
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* PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND
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* NON-INFRINGEMENT.
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*
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* IN NO EVENT SHALL USC, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT,
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* TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH,
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* THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Other copyrights might apply to parts of this software and are so
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* noted when applicable.
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*/
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/*
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* Questions concerning this software should be directed to
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* Pavlin Ivanov Radoslavov (pavlin@catarina.usc.edu)
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*
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* $Id: trace.h,v 1.2 1999/09/09 15:47:11 jinmei Exp $
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*/
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/*
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* Part of this program has been derived from mrouted.
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* The mrouted program is covered by the license in the accompanying file
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* named "LICENSE.mrouted".
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*
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* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
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* Leland Stanford Junior University.
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*
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* $FreeBSD$
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*/
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#ifndef TRACE_H
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#define TRACE_H
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/*
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* The packet format for a traceroute request.
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*/
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struct tr6_query {
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struct in6_addr tr_src; /* traceroute source */
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struct in6_addr tr_dst; /* traceroute destination */
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struct in6_addr tr_raddr; /* traceroute response address */
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#if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
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struct {
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u_int32_t qid : 24; /* traceroute query id */
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u_int32_t rhlim : 8; /* traceroute response ttl */
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} q;
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#else
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struct {
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u_int32_t rhlim : 8; /* traceroute response ttl */
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u_int32_t qid : 24; /* traceroute query id */
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} q;
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#endif /* BYTE_ORDER */
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};
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#define tr_rhlim q.rhlim
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#define tr_qid q.qid
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/*
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* Traceroute response format. A traceroute response has a tr_query at the
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* beginning, followed by one tr_resp for each hop taken.
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*/
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struct tr6_resp {
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u_int32_t tr_qarr; /* query arrival time */
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#if 0
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struct in6_addr tr_inaddr; /* incoming interface address */
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struct in6_addr tr_outaddr; /* outgoing interface address */
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#endif
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u_int32_t tr_inifid; /* incoming interface identifier */
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u_int32_t tr_outifid; /* outgoing interface identifier */
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struct in6_addr tr_lcladdr; /* router's address(must have largest scope) */
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struct in6_addr tr_rmtaddr; /* parent address in source tree */
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u_int32_t tr_vifin; /* input packet count on interface */
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u_int32_t tr_vifout; /* output packet count on interface */
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u_int32_t tr_pktcnt; /* total incoming packets for src-grp */
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u_char tr_rproto; /* routing protocol deployed on router */
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#if 0
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u_char tr_fhlim; /* hop limit required to forward on outvif */
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#endif
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u_char tr_flags; /* flags */
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u_char tr_plen; /* prefix length for src addr */
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u_char tr_rflags; /* forwarding error codes */
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};
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/* defs within mtrace */
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#define QUERY 1
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#define RESP 2
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#define QLEN sizeof(struct tr6_query)
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#define RLEN sizeof(struct tr6_resp)
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/* fields for tr_inifid and tr_outifid */
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#define TR_NO_VIF 0xffffffff/* interface can't be determined */
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/* fields for tr_rflags (forwarding error codes) */
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#define TR_NO_ERR 0 /* No error */
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#define TR_WRONG_IF 1 /* traceroute arrived on non-oif */
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#define TR_PRUNED 2 /* router has sent a prune upstream */
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#define TR_OPRUNED 3 /* stop forw. after request from next hop rtr*/
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#define TR_SCOPED 4 /* group adm. scoped at this hop */
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#define TR_NO_RTE 5 /* no route for the source */
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#define TR_NO_LHR 6 /* not the last-hop router */
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#define TR_NO_FWD 7 /* not forwarding for this (S,G). Reason = ? */
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#define TR_RP 8 /* I am the RP/Core */
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#define TR_IIF 9 /* request arrived on the iif */
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#define TR_NO_MULTI 0x0a /* multicast disabled on that interface */
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#define TR_NO_SPACE 0x81 /* no space to insert responce data block */
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#define TR_OLD_ROUTER 0x82 /* previous hop does not support traceroute */
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#define TR_ADMIN_PROHIB 0x83 /* traceroute adm. prohibited */
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/* fields for tr_flags */
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#define TR_SUBNET_COUNT 0x80 /* pkt count for (S,G) is for source network */
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/* fields for r_plen */
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#define TR_GROUP_ONLY 0xff /* forwarding solely on group state */
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/* fields for packets count */
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#define TR_CANT_COUNT 0xffffffff /* no count can be reported */
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/* fields for tr_rproto (routing protocol) */
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#define PROTO_DVMRP 1
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#define PROTO_MOSPF 2
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#define PROTO_PIM 3
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#define PROTO_CBT 4
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#define PROTO_PIM_SPECIAL 5
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#define PROTO_PIM_STATIC 6
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#define PROTO_DVMRP_STATIC 7
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#define MASK_TO_VAL(x, i) { \
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u_int32_t _x = ntohl(x); \
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(i) = 1; \
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while ((_x) <<= 1) \
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(i)++; \
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};
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#define VAL_TO_MASK(x, i) { \
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x = htonl(~((1 << (32 - (i))) - 1)); \
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};
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#define MASKLEN_TO_MASK6(masklen, mask6) \
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do {\
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u_char maskarray[8] = \
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{0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff}; \
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int bytelen, bitlen, i; \
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memset(&(mask6), 0, sizeof(mask6));\
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bytelen = (masklen) / 8;\
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bitlen = (masklen) % 8;\
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for (i = 0; i < bytelen; i++) \
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(mask6).s6_addr[i] = 0xff;\
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if (bitlen) \
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(mask6).s6_addr[bytelen] = maskarray[bitlen - 1]; \
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}while(0);
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/* obnoxious gcc gives an extraneous warning about this constant... */
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#if defined(__STDC__) || defined(__GNUC__)
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#define JAN_1970 2208988800UL /* 1970 - 1900 in seconds */
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#else
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#define JAN_1970 2208988800L /* 1970 - 1900 in seconds */
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#define const /**/
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#endif
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#define NBR_VERS(n) (((n)->al_pv << 8) + (n)->al_mv)
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void accept_mtrace __P((struct sockaddr_in6 *, struct in6_addr *,
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struct in6_addr *, int, char *, u_int, int));
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#endif /* TRACE_H */
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