Annotation of embedaddon/pimd/trace.h, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (c) 1998-2001
! 3: * University of Southern California/Information Sciences Institute.
! 4: * All rights reserved.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: * 3. Neither the name of the project nor the names of its contributors
! 15: * may be used to endorse or promote products derived from this software
! 16: * without specific prior written permission.
! 17: *
! 18: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
! 19: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 21: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
! 22: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 23: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 24: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 25: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 26: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 27: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 28: * SUCH DAMAGE.
! 29: */
! 30: /*
! 31: * $Id: trace.h,v 1.7 2001/09/10 20:31:37 pavlin Exp $
! 32: */
! 33: /*
! 34: * Part of this program has been derived from mrouted.
! 35: * The mrouted program is covered by the license in the accompanying file
! 36: * named "LICENSE.mrouted".
! 37: *
! 38: * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
! 39: * Leland Stanford Junior University.
! 40: *
! 41: */
! 42:
! 43:
! 44: /*
! 45: * The packet format for a traceroute request.
! 46: */
! 47: struct tr_query {
! 48: uint32_t tr_src; /* traceroute source */
! 49: uint32_t tr_dst; /* traceroute destination */
! 50: uint32_t tr_raddr; /* traceroute response address */
! 51: #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
! 52: struct {
! 53: u_int qid : 24; /* traceroute query id */
! 54: u_int ttl : 8; /* traceroute response ttl */
! 55: } q;
! 56: #else
! 57: struct {
! 58: u_int ttl : 8; /* traceroute response ttl */
! 59: u_int qid : 24; /* traceroute query id */
! 60: } q;
! 61: #endif /* BYTE_ORDER */
! 62: };
! 63:
! 64: #define tr_rttl q.ttl
! 65: #define tr_qid q.qid
! 66:
! 67: /*
! 68: * Traceroute response format. A traceroute response has a tr_query at the
! 69: * beginning, followed by one tr_resp for each hop taken.
! 70: */
! 71: struct tr_resp {
! 72: uint32_t tr_qarr; /* query arrival time */
! 73: uint32_t tr_inaddr; /* incoming interface address */
! 74: uint32_t tr_outaddr; /* outgoing interface address */
! 75: uint32_t tr_rmtaddr; /* parent address in source tree */
! 76: uint32_t tr_vifin; /* input packet count on interface */
! 77: uint32_t tr_vifout; /* output packet count on interface */
! 78: uint32_t tr_pktcnt; /* total incoming packets for src-grp */
! 79: uint8_t tr_rproto; /* routing protocol deployed on router */
! 80: uint8_t tr_fttl; /* ttl required to forward on outvif */
! 81: uint8_t tr_smask; /* subnet mask for src addr */
! 82: uint8_t tr_rflags; /* forwarding error codes */
! 83: };
! 84:
! 85: /* defs within mtrace */
! 86: #define QUERY 1
! 87: #define RESP 2
! 88: #define QLEN sizeof(struct tr_query)
! 89: #define RLEN sizeof(struct tr_resp)
! 90:
! 91: /* fields for tr_rflags (forwarding error codes) */
! 92: #define TR_NO_ERR 0 /* No error */
! 93: #define TR_WRONG_IF 1 /* traceroute arrived on non-oif */
! 94: #define TR_PRUNED 2 /* router has sent a prune upstream */
! 95: #define TR_OPRUNED 3 /* stop forw. after request from next hop rtr*/
! 96: #define TR_SCOPED 4 /* group adm. scoped at this hop */
! 97: #define TR_NO_RTE 5 /* no route for the source */
! 98: #define TR_NO_LHR 6 /* not the last-hop router */
! 99: #define TR_NO_FWD 7 /* not forwarding for this (S,G). Reason = ? */
! 100: #define TR_RP 8 /* I am the RP/Core */
! 101: #define TR_IIF 9 /* request arrived on the iif */
! 102: #define TR_NO_MULTI 0x0a /* multicast disabled on that interface */
! 103: #define TR_NO_SPACE 0x81 /* no space to insert responce data block */
! 104: #define TR_OLD_ROUTER 0x82 /* previous hop does not support traceroute */
! 105: #define TR_ADMIN_PROHIB 0x83 /* traceroute adm. prohibited */
! 106:
! 107: /* fields for tr_smask */
! 108: #define TR_GROUP_ONLY 0x2f /* forwarding solely on group state */
! 109: #define TR_SUBNET_COUNT 0x40 /* pkt count for (S,G) is for source network */
! 110:
! 111: /* fields for packets count */
! 112: #define TR_CANT_COUNT 0xffffffff /* no count can be reported */
! 113:
! 114: /* fields for tr_rproto (routing protocol) */
! 115: #define PROTO_DVMRP 1
! 116: #define PROTO_MOSPF 2
! 117: #define PROTO_PIM 3
! 118: #define PROTO_CBT 4
! 119: #define PROTO_PIM_SPECIAL 5
! 120: #define PROTO_PIM_STATIC 6
! 121: #define PROTO_DVMRP_STATIC 7
! 122:
! 123: #define NBR_VERS(n) (((n)->al_pv << 8) + (n)->al_mv)
! 124:
! 125: /**
! 126: * Local Variables:
! 127: * version-control: t
! 128: * indent-tabs-mode: t
! 129: * c-file-style: "ellemtel"
! 130: * c-basic-offset: 4
! 131: * End:
! 132: */
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