947 lines
21 KiB
C
947 lines
21 KiB
C
/*
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* Copyright (c) 1995, 1996
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* The Regents of the University of California. 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: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $FreeBSD$
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*/
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#ifndef lint
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static const char rcsid[] =
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"@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.29 2001/07/04 21:36:15 fenner Exp $ (LBL)";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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/*
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* XXX: We consider a case where IPv6 is not ready yet for portability,
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* but PIM dependent defintions should be independent of IPv6...
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*/
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struct pim {
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u_int8_t pim_typever;
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/* upper 4bit: PIM version number; 2 for PIMv2 */
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/* lower 4bit: the PIM message type, currently they are:
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* Hello, Register, Register-Stop, Join/Prune,
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* Bootstrap, Assert, Graft (PIM-DM only),
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* Graft-Ack (PIM-DM only), C-RP-Adv
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*/
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#define PIM_VER(x) (((x) & 0xf0) >> 4)
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#define PIM_TYPE(x) ((x) & 0x0f)
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u_char pim_rsv; /* Reserved */
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u_short pim_cksum; /* IP style check sum */
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};
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "interface.h"
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#include "addrtoname.h"
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#include "extract.h"
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#include "ip.h"
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static void pimv2_print(register const u_char *bp, register u_int len);
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static void
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pimv1_join_prune_print(register const u_char *bp, register u_int len)
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{
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int maddrlen, addrlen, ngroups, njoin, nprune;
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int njp;
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/* If it's a single group and a single source, use 1-line output. */
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if (TTEST2(bp[0], 30) && bp[11] == 1 &&
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((njoin = EXTRACT_16BITS(&bp[20])) + EXTRACT_16BITS(&bp[22])) == 1) {
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int hold;
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(void)printf(" RPF %s ", ipaddr_string(bp));
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hold = EXTRACT_16BITS(&bp[6]);
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if (hold != 180) {
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(void)printf("Hold ");
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relts_print(hold);
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}
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(void)printf("%s (%s/%d, %s", njoin ? "Join" : "Prune",
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ipaddr_string(&bp[26]), bp[25] & 0x3f,
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ipaddr_string(&bp[12]));
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if (EXTRACT_32BITS(&bp[16]) != 0xffffffff)
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(void)printf("/%s", ipaddr_string(&bp[16]));
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(void)printf(") %s%s %s",
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(bp[24] & 0x01) ? "Sparse" : "Dense",
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(bp[25] & 0x80) ? " WC" : "",
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(bp[25] & 0x40) ? "RP" : "SPT");
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return;
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}
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TCHECK2(bp[0], 4);
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if (vflag > 1)
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(void)printf("\n");
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(void)printf(" Upstream Nbr: %s", ipaddr_string(bp));
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TCHECK2(bp[6], 2);
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if (vflag > 1)
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(void)printf("\n");
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(void)printf(" Hold time: ");
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relts_print(EXTRACT_16BITS(&bp[6]));
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if (vflag < 2)
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return;
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bp += 8;
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len -= 8;
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TCHECK2(bp[0], 4);
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maddrlen = bp[1];
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addrlen = bp[2];
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ngroups = bp[3];
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bp += 4;
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len -= 4;
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while (ngroups--) {
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TCHECK2(bp[0], 4);
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(void)printf("\n\tGroup: %s", ipaddr_string(bp));
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if (EXTRACT_32BITS(&bp[4]) != 0xffffffff)
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(void)printf("/%s", ipaddr_string(&bp[4]));
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TCHECK2(bp[8], 4);
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njoin = EXTRACT_16BITS(&bp[8]);
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nprune = EXTRACT_16BITS(&bp[10]);
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(void)printf(" joined: %d pruned: %d", njoin, nprune);
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bp += 12;
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len -= 12;
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for (njp = 0; njp < (njoin + nprune); njp++) {
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char *type;
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if (njp < njoin)
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type = "Join ";
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else
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type = "Prune";
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TCHECK2(bp[0], 6);
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(void)printf("\n\t%s %s%s%s%s/%d", type,
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(bp[0] & 0x01) ? "Sparse " : "Dense ",
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(bp[1] & 0x80) ? "WC " : "",
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(bp[1] & 0x40) ? "RP " : "SPT ",
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ipaddr_string(&bp[2]), bp[1] & 0x3f);
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bp += 6;
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len -= 6;
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}
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}
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return;
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trunc:
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(void)printf("[|pim]");
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return;
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}
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void
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pimv1_print(register const u_char *bp, register u_int len)
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{
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register const u_char *ep;
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register u_char type;
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ep = (const u_char *)snapend;
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if (bp >= ep)
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return;
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type = bp[1];
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switch (type) {
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case 0:
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(void)printf(" Query");
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if (TTEST(bp[8])) {
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switch (bp[8] >> 4) {
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case 0:
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(void)printf(" Dense-mode");
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break;
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case 1:
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(void)printf(" Sparse-mode");
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break;
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case 2:
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(void)printf(" Sparse-Dense-mode");
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break;
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default:
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(void)printf(" mode-%d", bp[8] >> 4);
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break;
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}
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}
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if (vflag) {
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TCHECK2(bp[10],2);
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(void)printf(" (Hold-time ");
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relts_print(EXTRACT_16BITS(&bp[10]));
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(void)printf(")");
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}
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break;
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case 1:
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(void)printf(" Register");
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TCHECK2(bp[8], 20); /* ip header */
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(void)printf(" for %s > %s", ipaddr_string(&bp[20]),
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ipaddr_string(&bp[24]));
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break;
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case 2:
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(void)printf(" Register-Stop");
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TCHECK2(bp[12], 4);
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(void)printf(" for %s > %s", ipaddr_string(&bp[8]),
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ipaddr_string(&bp[12]));
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break;
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case 3:
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(void)printf(" Join/Prune");
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if (vflag)
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pimv1_join_prune_print(&bp[8], len - 8);
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break;
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case 4:
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(void)printf(" RP-reachable");
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if (vflag) {
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TCHECK2(bp[22], 2);
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(void)printf(" group %s",
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ipaddr_string(&bp[8]));
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if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
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(void)printf("/%s", ipaddr_string(&bp[12]));
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(void)printf(" RP %s hold ", ipaddr_string(&bp[16]));
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relts_print(EXTRACT_16BITS(&bp[22]));
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}
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break;
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case 5:
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(void)printf(" Assert");
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TCHECK2(bp[16], 4);
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(void)printf(" for %s > %s", ipaddr_string(&bp[16]),
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ipaddr_string(&bp[8]));
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if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
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(void)printf("/%s", ipaddr_string(&bp[12]));
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TCHECK2(bp[24], 4);
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(void)printf(" %s pref %d metric %d",
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(bp[20] & 0x80) ? "RP-tree" : "SPT",
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EXTRACT_32BITS(&bp[20]) & 0x7fffffff,
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EXTRACT_32BITS(&bp[24]));
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break;
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case 6:
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(void)printf(" Graft");
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if (vflag)
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pimv1_join_prune_print(&bp[8], len - 8);
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break;
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case 7:
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(void)printf(" Graft-ACK");
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if (vflag)
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pimv1_join_prune_print(&bp[8], len - 8);
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break;
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case 8:
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(void)printf(" Mode");
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break;
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default:
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(void)printf(" [type %d]", type);
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break;
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}
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if ((bp[4] >> 4) != 1)
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(void)printf(" [v%d]", bp[4] >> 4);
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return;
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trunc:
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(void)printf("[|pim]");
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return;
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}
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/*
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* auto-RP is a cisco protocol, documented at
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* ftp://ftpeng.cisco.com/ipmulticast/specs/pim-autorp-spec01.txt
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*
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* This implements version 1+, dated Sept 9, 1998.
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*/
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void
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cisco_autorp_print(register const u_char *bp, register u_int len)
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{
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int type;
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int numrps;
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int hold;
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TCHECK(bp[0]);
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(void)printf(" auto-rp ");
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type = bp[0];
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switch (type) {
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case 0x11:
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(void)printf("candidate-advert");
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break;
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case 0x12:
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(void)printf("mapping");
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break;
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default:
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(void)printf("type-0x%02x", type);
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break;
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}
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TCHECK(bp[1]);
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numrps = bp[1];
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TCHECK2(bp[2], 2);
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(void)printf(" Hold ");
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hold = EXTRACT_16BITS(&bp[2]);
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if (hold)
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relts_print(EXTRACT_16BITS(&bp[2]));
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else
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printf("FOREVER");
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/* Next 4 bytes are reserved. */
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bp += 8; len -= 8;
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/*XXX skip unless -v? */
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/*
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* Rest of packet:
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* numrps entries of the form:
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* 32 bits: RP
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* 6 bits: reserved
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* 2 bits: PIM version supported, bit 0 is "supports v1", 1 is "v2".
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* 8 bits: # of entries for this RP
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* each entry: 7 bits: reserved, 1 bit: negative,
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* 8 bits: mask 32 bits: source
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* lather, rinse, repeat.
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*/
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while (numrps--) {
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int nentries;
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char s;
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TCHECK2(bp[0], 4);
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(void)printf(" RP %s", ipaddr_string(bp));
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TCHECK(bp[4]);
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switch (bp[4] & 0x3) {
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case 0: printf(" PIMv?");
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break;
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case 1: printf(" PIMv1");
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break;
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case 2: printf(" PIMv2");
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break;
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case 3: printf(" PIMv1+2");
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break;
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}
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if (bp[4] & 0xfc)
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(void)printf(" [rsvd=0x%02x]", bp[4] & 0xfc);
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TCHECK(bp[5]);
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nentries = bp[5];
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bp += 6; len -= 6;
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s = ' ';
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for (; nentries; nentries--) {
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TCHECK2(bp[0], 6);
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(void)printf("%c%s%s/%d", s, bp[0] & 1 ? "!" : "",
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ipaddr_string(&bp[2]), bp[1]);
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if (bp[0] & 0xfe)
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(void)printf("[rsvd=0x%02x]", bp[0] & 0xfe);
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s = ',';
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bp += 6; len -= 6;
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}
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}
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return;
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trunc:
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(void)printf("[|autorp]");
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return;
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}
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void
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pim_print(register const u_char *bp, register u_int len)
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{
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register const u_char *ep;
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register struct pim *pim = (struct pim *)bp;
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ep = (const u_char *)snapend;
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if (bp >= ep)
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return;
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#ifdef notyet /* currently we see only version and type */
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TCHECK(pim->pim_rsv);
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#endif
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switch (PIM_VER(pim->pim_typever)) {
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case 2: /* avoid hardcoding? */
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(void)printf("pim v2");
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pimv2_print(bp, len);
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break;
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default:
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(void)printf("pim v%d", PIM_VER(pim->pim_typever));
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break;
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}
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return;
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}
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/*
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* PIMv2 uses encoded address representations.
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*
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* The last PIM-SM I-D before RFC2117 was published specified the
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* following representation for unicast addresses. However, RFC2117
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* specified no encoding for unicast addresses with the unicast
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* address length specified in the header. Therefore, we have to
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* guess which encoding is being used (Cisco's PIMv2 implementation
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* uses the non-RFC encoding). RFC2117 turns a previously "Reserved"
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* field into a 'unicast-address-length-in-bytes' field. We guess
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* that it's the draft encoding if this reserved field is zero.
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*
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* RFC2362 goes back to the encoded format, and calls the addr length
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* field "reserved" again.
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*
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* The first byte is the address family, from:
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*
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* 0 Reserved
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* 1 IP (IP version 4)
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* 2 IP6 (IP version 6)
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* 3 NSAP
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* 4 HDLC (8-bit multidrop)
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* 5 BBN 1822
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* 6 802 (includes all 802 media plus Ethernet "canonical format")
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* 7 E.163
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* 8 E.164 (SMDS, Frame Relay, ATM)
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* 9 F.69 (Telex)
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* 10 X.121 (X.25, Frame Relay)
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* 11 IPX
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* 12 Appletalk
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* 13 Decnet IV
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* 14 Banyan Vines
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* 15 E.164 with NSAP format subaddress
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*
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* In addition, the second byte is an "Encoding". 0 is the default
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* encoding for the address family, and no other encodings are currently
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* specified.
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*
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*/
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static int pimv2_addr_len;
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enum pimv2_addrtype {
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pimv2_unicast, pimv2_group, pimv2_source
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};
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/* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Addr Family | Encoding Type | Unicast Address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+++++++
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Addr Family | Encoding Type | Reserved | Mask Len |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Group multicast Address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
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* | Addr Family | Encoding Type | Rsrvd |S|W|R| Mask Len |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Source Address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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static int
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pimv2_addr_print(const u_char *bp, enum pimv2_addrtype at, int silent)
|
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{
|
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int af;
|
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char *afstr;
|
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int len, hdrlen;
|
|
|
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TCHECK(bp[0]);
|
|
|
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if (pimv2_addr_len == 0) {
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|
TCHECK(bp[1]);
|
|
switch (bp[0]) {
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|
case 1:
|
|
af = AF_INET;
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afstr = "IPv4";
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len = 4;
|
|
break;
|
|
#ifdef INET6
|
|
case 2:
|
|
af = AF_INET6;
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afstr = "IPv6";
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len = 16;
|
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break;
|
|
#endif
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default:
|
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return -1;
|
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}
|
|
if (bp[1] != 0)
|
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return -1;
|
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hdrlen = 2;
|
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} else {
|
|
switch (pimv2_addr_len) {
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case 4:
|
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af = AF_INET;
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afstr = "IPv4";
|
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break;
|
|
#ifdef INET6
|
|
case 16:
|
|
af = AF_INET6;
|
|
afstr = "IPv6";
|
|
break;
|
|
#endif
|
|
default:
|
|
return -1;
|
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break;
|
|
}
|
|
len = pimv2_addr_len;
|
|
hdrlen = 0;
|
|
}
|
|
|
|
bp += hdrlen;
|
|
switch (at) {
|
|
case pimv2_unicast:
|
|
TCHECK2(bp[0], len);
|
|
if (af == AF_INET) {
|
|
if (!silent)
|
|
(void)printf("%s", ipaddr_string(bp));
|
|
}
|
|
#ifdef INET6
|
|
else if (af == AF_INET6) {
|
|
if (!silent)
|
|
(void)printf("%s", ip6addr_string(bp));
|
|
}
|
|
#endif
|
|
return hdrlen + len;
|
|
case pimv2_group:
|
|
case pimv2_source:
|
|
TCHECK2(bp[0], len + 2);
|
|
if (af == AF_INET) {
|
|
if (!silent) {
|
|
(void)printf("%s", ipaddr_string(bp + 2));
|
|
if (bp[1] != 32)
|
|
(void)printf("/%u", bp[1]);
|
|
}
|
|
}
|
|
#ifdef INET6
|
|
else if (af == AF_INET6) {
|
|
if (!silent) {
|
|
(void)printf("%s", ip6addr_string(bp + 2));
|
|
if (bp[1] != 128)
|
|
(void)printf("/%u", bp[1]);
|
|
}
|
|
}
|
|
#endif
|
|
if (bp[0] && !silent) {
|
|
if (at == pimv2_group) {
|
|
(void)printf("(0x%02x)", bp[0]);
|
|
} else {
|
|
(void)printf("(%s%s%s",
|
|
bp[0] & 0x04 ? "S" : "",
|
|
bp[0] & 0x02 ? "W" : "",
|
|
bp[0] & 0x01 ? "R" : "");
|
|
if (bp[0] & 0xf8) {
|
|
(void) printf("+0x%02x", bp[0] & 0xf8);
|
|
}
|
|
(void)printf(")");
|
|
}
|
|
}
|
|
return hdrlen + 2 + len;
|
|
default:
|
|
return -1;
|
|
}
|
|
trunc:
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
pimv2_print(register const u_char *bp, register u_int len)
|
|
{
|
|
register const u_char *ep;
|
|
register struct pim *pim = (struct pim *)bp;
|
|
int advance;
|
|
|
|
ep = (const u_char *)snapend;
|
|
if (bp >= ep)
|
|
return;
|
|
if (ep > bp + len)
|
|
ep = bp + len;
|
|
TCHECK(pim->pim_rsv);
|
|
pimv2_addr_len = pim->pim_rsv;
|
|
if (pimv2_addr_len != 0)
|
|
(void)printf("[RFC2117-encoding] ");
|
|
|
|
switch (PIM_TYPE(pim->pim_typever)) {
|
|
case 0:
|
|
{
|
|
u_int16_t otype, olen;
|
|
(void)printf(" Hello");
|
|
bp += 4;
|
|
while (bp < ep) {
|
|
TCHECK2(bp[0], 4);
|
|
otype = EXTRACT_16BITS(&bp[0]);
|
|
olen = EXTRACT_16BITS(&bp[2]);
|
|
TCHECK2(bp[0], 4 + olen);
|
|
switch (otype) {
|
|
case 1: /* Hold time */
|
|
(void)printf(" (Hold-time ");
|
|
relts_print(EXTRACT_16BITS(&bp[4]));
|
|
(void)printf(")");
|
|
break;
|
|
|
|
case 19: /* DR-Priority */
|
|
(void)printf(" (DR-Priority: ");
|
|
if (olen != 4) {
|
|
(void)printf("!olen=%d!)", olen);
|
|
} else {
|
|
(void)printf("%d)", EXTRACT_32BITS(&bp[4]));
|
|
}
|
|
break;
|
|
|
|
case 20:
|
|
(void)printf(" (Genid: 0x%08x)", EXTRACT_32BITS(&bp[4]));
|
|
break;
|
|
|
|
case 21:
|
|
(void)printf(" (State Refresh Capable; v%d", bp[4]);
|
|
if (bp[5] != 0) {
|
|
(void)printf(" interval ");
|
|
relts_print(bp[5]);
|
|
}
|
|
if (EXTRACT_16BITS(&bp[6]) != 0) {
|
|
(void)printf(" ?0x%04x?", EXTRACT_16BITS(&bp[6]));
|
|
}
|
|
(void)printf(")");
|
|
break;
|
|
|
|
case 22: /* Bidir-Capable */
|
|
(void)printf(" (bidir-capable)");
|
|
break;
|
|
|
|
default:
|
|
if (vflag)
|
|
(void)printf(" [Hello option %d]", otype);
|
|
}
|
|
bp += 4 + olen;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 1:
|
|
{
|
|
struct ip *ip;
|
|
|
|
(void)printf(" Register");
|
|
if (vflag && bp + 8 <= ep) {
|
|
(void)printf(" %s%s", bp[4] & 0x80 ? "B" : "",
|
|
bp[4] & 0x40 ? "N" : "");
|
|
}
|
|
bp += 8; len -= 8;
|
|
|
|
/* encapsulated multicast packet */
|
|
if (bp >= ep)
|
|
break;
|
|
ip = (struct ip *)bp;
|
|
switch (IP_V(ip)) {
|
|
case 4: /* IPv4 */
|
|
printf(" ");
|
|
ip_print(bp, len);
|
|
break;
|
|
#ifdef INET6
|
|
case 6: /* IPv6 */
|
|
printf(" ");
|
|
ip6_print(bp, len);
|
|
break;
|
|
#endif
|
|
default:
|
|
(void)printf(" IP ver %d", IP_V(ip));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 2:
|
|
(void)printf(" Register-Stop");
|
|
bp += 4; len -= 4;
|
|
if (bp >= ep)
|
|
break;
|
|
(void)printf(" group=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance; len -= advance;
|
|
if (bp >= ep)
|
|
break;
|
|
(void)printf(" source=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance; len -= advance;
|
|
break;
|
|
|
|
case 3:
|
|
case 6:
|
|
case 7:
|
|
{
|
|
u_int8_t ngroup;
|
|
u_int16_t holdtime;
|
|
u_int16_t njoin;
|
|
u_int16_t nprune;
|
|
int i, j;
|
|
|
|
switch (PIM_TYPE(pim->pim_typever)) {
|
|
case 3:
|
|
(void)printf(" Join/Prune");
|
|
break;
|
|
case 6:
|
|
(void)printf(" Graft");
|
|
break;
|
|
case 7:
|
|
(void)printf(" Graft-ACK");
|
|
break;
|
|
}
|
|
bp += 4; len -= 4;
|
|
if (PIM_TYPE(pim->pim_typever) != 7) { /*not for Graft-ACK*/
|
|
if (bp >= ep)
|
|
break;
|
|
(void)printf(" upstream-neighbor=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance; len -= advance;
|
|
}
|
|
if (bp + 4 > ep)
|
|
break;
|
|
ngroup = bp[1];
|
|
holdtime = EXTRACT_16BITS(&bp[2]);
|
|
(void)printf(" groups=%u", ngroup);
|
|
if (PIM_TYPE(pim->pim_typever) != 7) { /*not for Graft-ACK*/
|
|
(void)printf(" holdtime=");
|
|
if (holdtime == 0xffff)
|
|
(void)printf("infty");
|
|
else
|
|
relts_print(holdtime);
|
|
}
|
|
bp += 4; len -= 4;
|
|
for (i = 0; i < ngroup; i++) {
|
|
if (bp >= ep)
|
|
goto jp_done;
|
|
(void)printf(" (group%d: ", i);
|
|
if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
|
|
(void)printf("...)");
|
|
goto jp_done;
|
|
}
|
|
bp += advance; len -= advance;
|
|
if (bp + 4 > ep) {
|
|
(void)printf("...)");
|
|
goto jp_done;
|
|
}
|
|
njoin = EXTRACT_16BITS(&bp[0]);
|
|
nprune = EXTRACT_16BITS(&bp[2]);
|
|
(void)printf(" join=%u", njoin);
|
|
bp += 4; len -= 4;
|
|
for (j = 0; j < njoin; j++) {
|
|
(void)printf(" ");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_source, 0)) < 0) {
|
|
(void)printf("...)");
|
|
goto jp_done;
|
|
}
|
|
bp += advance; len -= advance;
|
|
}
|
|
(void)printf(" prune=%u", nprune);
|
|
for (j = 0; j < nprune; j++) {
|
|
(void)printf(" ");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_source, 0)) < 0) {
|
|
(void)printf("...)");
|
|
goto jp_done;
|
|
}
|
|
bp += advance; len -= advance;
|
|
}
|
|
(void)printf(")");
|
|
}
|
|
jp_done:
|
|
break;
|
|
}
|
|
|
|
case 4:
|
|
{
|
|
int i, j, frpcnt;
|
|
|
|
(void)printf(" Bootstrap");
|
|
bp += 4;
|
|
|
|
/* Fragment Tag, Hash Mask len, and BSR-priority */
|
|
if (bp + sizeof(u_int16_t) >= ep) break;
|
|
(void)printf(" tag=%x", EXTRACT_16BITS(bp));
|
|
bp += sizeof(u_int16_t);
|
|
if (bp >= ep) break;
|
|
(void)printf(" hashmlen=%d", bp[0]);
|
|
if (bp + 1 >= ep) break;
|
|
(void)printf(" BSRprio=%d", bp[1]);
|
|
bp += 2;
|
|
|
|
/* Encoded-Unicast-BSR-Address */
|
|
if (bp >= ep) break;
|
|
(void)printf(" BSR=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance;
|
|
|
|
for (i = 0; bp < ep; i++) {
|
|
/* Encoded-Group Address */
|
|
(void)printf(" (group%d: ", i);
|
|
if ((advance = pimv2_addr_print(bp, pimv2_group, 0))
|
|
< 0) {
|
|
(void)printf("...)");
|
|
goto bs_done;
|
|
}
|
|
bp += advance;
|
|
|
|
/* RP-Count, Frag RP-Cnt, and rsvd */
|
|
if (bp >= ep) {
|
|
(void)printf("...)");
|
|
goto bs_done;
|
|
}
|
|
(void)printf(" RPcnt=%d", bp[0]);
|
|
if (bp + 1 >= ep) {
|
|
(void)printf("...)");
|
|
goto bs_done;
|
|
}
|
|
(void)printf(" FRPcnt=%d", frpcnt = bp[1]);
|
|
bp += 4;
|
|
|
|
for (j = 0; j < frpcnt && bp < ep; j++) {
|
|
/* each RP info */
|
|
(void)printf(" RP%d=", j);
|
|
if ((advance = pimv2_addr_print(bp,
|
|
pimv2_unicast,
|
|
0)) < 0) {
|
|
(void)printf("...)");
|
|
goto bs_done;
|
|
}
|
|
bp += advance;
|
|
|
|
if (bp + 1 >= ep) {
|
|
(void)printf("...)");
|
|
goto bs_done;
|
|
}
|
|
(void)printf(",holdtime=");
|
|
relts_print(EXTRACT_16BITS(bp));
|
|
if (bp + 2 >= ep) {
|
|
(void)printf("...)");
|
|
goto bs_done;
|
|
}
|
|
(void)printf(",prio=%d", bp[2]);
|
|
bp += 4;
|
|
}
|
|
(void)printf(")");
|
|
}
|
|
bs_done:
|
|
break;
|
|
}
|
|
case 5:
|
|
(void)printf(" Assert");
|
|
bp += 4; len -= 4;
|
|
if (bp >= ep)
|
|
break;
|
|
(void)printf(" group=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance; len -= advance;
|
|
if (bp >= ep)
|
|
break;
|
|
(void)printf(" src=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance; len -= advance;
|
|
if (bp + 8 > ep)
|
|
break;
|
|
if (bp[0] & 0x80)
|
|
(void)printf(" RPT");
|
|
(void)printf(" pref=%u", EXTRACT_32BITS(&bp[0]) & 0x7fffffff);
|
|
(void)printf(" metric=%u", EXTRACT_32BITS(&bp[4]));
|
|
break;
|
|
|
|
case 8:
|
|
{
|
|
int i, pfxcnt;
|
|
|
|
(void)printf(" Candidate-RP-Advertisement");
|
|
bp += 4;
|
|
|
|
/* Prefix-Cnt, Priority, and Holdtime */
|
|
if (bp >= ep) break;
|
|
(void)printf(" prefix-cnt=%d", bp[0]);
|
|
pfxcnt = bp[0];
|
|
if (bp + 1 >= ep) break;
|
|
(void)printf(" prio=%d", bp[1]);
|
|
if (bp + 3 >= ep) break;
|
|
(void)printf(" holdtime=");
|
|
relts_print(EXTRACT_16BITS(&bp[2]));
|
|
bp += 4;
|
|
|
|
/* Encoded-Unicast-RP-Address */
|
|
if (bp >= ep) break;
|
|
(void)printf(" RP=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance;
|
|
|
|
/* Encoded-Group Addresses */
|
|
for (i = 0; i < pfxcnt && bp < ep; i++) {
|
|
(void)printf(" Group%d=", i);
|
|
if ((advance = pimv2_addr_print(bp, pimv2_group, 0))
|
|
< 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 9:
|
|
(void)printf(" Prune-Refresh");
|
|
(void)printf(" src=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance;
|
|
(void)printf(" grp=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance;
|
|
(void)printf(" forwarder=");
|
|
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
|
|
(void)printf("...");
|
|
break;
|
|
}
|
|
bp += advance;
|
|
TCHECK2(bp[0], 2);
|
|
(void)printf(" TUNR ");
|
|
relts_print(EXTRACT_16BITS(bp));
|
|
break;
|
|
|
|
|
|
default:
|
|
(void)printf(" [type %d]", PIM_TYPE(pim->pim_typever));
|
|
break;
|
|
}
|
|
|
|
return;
|
|
|
|
trunc:
|
|
(void)printf("[|pim]");
|
|
}
|