88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
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/*
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* Multicast traceroute related definitions
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*
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* mtrace.h,v 5.1 1996/12/19 21:31:26 fenner Exp
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*/
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/*
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* The packet format for a traceroute request.
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*/
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struct tr_query {
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u_int32 tr_src; /* traceroute source */
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u_int32 tr_dst; /* traceroute destination */
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u_int32 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_int qid : 24; /* traceroute query id */
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u_int ttl : 8; /* traceroute response ttl */
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} q;
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#else
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struct {
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u_int ttl : 8; /* traceroute response ttl */
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u_int 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_rttl q.ttl
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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 tr_resp {
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u_int32 tr_qarr; /* query arrival time */
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u_int32 tr_inaddr; /* incoming interface address */
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u_int32 tr_outaddr; /* outgoing interface address */
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u_int32 tr_rmtaddr; /* parent address in source tree */
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u_int32 tr_vifin; /* input packet count on interface */
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u_int32 tr_vifout; /* output packet count on interface */
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u_int32 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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u_char tr_fttl; /* ttl required to forward on outvif */
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u_char tr_smask; /* subnet mask 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 tr_query)
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#define RLEN sizeof(struct tr_resp)
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/* fields for tr_rflags (forwarding error codes) */
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#define TR_NO_ERR 0
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#define TR_WRONG_IF 1
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#define TR_PRUNED 2
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#define TR_OPRUNED 3
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#define TR_SCOPED 4
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#define TR_NO_RTE 5
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#define TR_NO_FWD 7
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#define TR_HIT_RP 8
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#define TR_RPF_IF 9
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#define TR_NO_MULTI 10
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#define TR_NO_SPACE 0x81
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#define TR_OLD_ROUTER 0x82
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#define TR_ADMIN_PROHIB 0x83
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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 VAL_TO_MASK(x, i) { \
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x = htonl(~((1 << (32 - (i))) - 1)); \
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};
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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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