1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /* |
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4 | * Copyright (c) 1996, 1997 |
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5 | * The Regents of the University of California. All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that: (1) source code distributions |
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9 | * retain the above copyright notice and this paragraph in its entirety, (2) |
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10 | * distributions including binary code include the above copyright notice and |
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11 | * this paragraph in its entirety in the documentation or other materials |
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12 | * provided with the distribution, and (3) all advertising materials mentioning |
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13 | * features or use of this software display the following acknowledgement: |
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14 | * ``This product includes software developed by the University of California, |
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15 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
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16 | * the University nor the names of its contributors may be used to endorse |
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17 | * or promote products derived from this software without specific prior |
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18 | * written permission. |
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19 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
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20 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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21 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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22 | * |
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23 | * Initial contribution from Francis Dupont (francis.dupont@inria.fr) |
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24 | */ |
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25 | |
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26 | #ifndef lint |
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27 | static const char rcsid[] _U_ = |
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28 | "@(#) $Header: /tcpdump/master/tcpdump/print-igrp.c,v 1.21 2005-04-20 21:01:56 guy Exp $ (LBL)"; |
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29 | #endif |
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30 | |
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31 | #ifdef HAVE_CONFIG_H |
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32 | #include "config.h" |
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33 | #endif |
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34 | |
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35 | #include <tcpdump-stdinc.h> |
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36 | |
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37 | #include <stdio.h> |
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38 | |
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39 | #include "interface.h" |
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40 | #include "addrtoname.h" |
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41 | #include "igrp.h" |
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42 | #include "ip.h" |
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43 | #include "extract.h" /* must come after interface.h */ |
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44 | |
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45 | static void |
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46 | igrp_entry_print(register struct igrprte *igr, register int is_interior, |
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47 | register int is_exterior) |
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48 | { |
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49 | register u_int delay, bandwidth; |
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50 | u_int metric, mtu; |
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51 | |
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52 | if (is_interior) |
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53 | printf(" *.%d.%d.%d", igr->igr_net[0], |
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54 | igr->igr_net[1], igr->igr_net[2]); |
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55 | else if (is_exterior) |
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56 | printf(" X%d.%d.%d.0", igr->igr_net[0], |
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57 | igr->igr_net[1], igr->igr_net[2]); |
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58 | else |
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59 | printf(" %d.%d.%d.0", igr->igr_net[0], |
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60 | igr->igr_net[1], igr->igr_net[2]); |
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61 | |
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62 | delay = EXTRACT_24BITS(igr->igr_dly); |
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63 | bandwidth = EXTRACT_24BITS(igr->igr_bw); |
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64 | metric = bandwidth + delay; |
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65 | if (metric > 0xffffff) |
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66 | metric = 0xffffff; |
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67 | mtu = EXTRACT_16BITS(igr->igr_mtu); |
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68 | |
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69 | printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops", |
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70 | 10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth, |
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71 | igr->igr_rel, igr->igr_ld, metric, |
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72 | mtu, igr->igr_hct); |
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73 | } |
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74 | |
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75 | static struct tok op2str[] = { |
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76 | { IGRP_UPDATE, "update" }, |
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77 | { IGRP_REQUEST, "request" }, |
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78 | { 0, NULL } |
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79 | }; |
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80 | |
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81 | void |
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82 | igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_) |
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83 | { |
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84 | register struct igrphdr *hdr; |
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85 | register u_char *cp; |
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86 | u_int nint, nsys, next; |
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87 | |
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88 | hdr = (struct igrphdr *)bp; |
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89 | cp = (u_char *)(hdr + 1); |
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90 | (void)printf("igrp:"); |
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91 | |
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92 | /* Header */ |
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93 | TCHECK(*hdr); |
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94 | nint = EXTRACT_16BITS(&hdr->ig_ni); |
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95 | nsys = EXTRACT_16BITS(&hdr->ig_ns); |
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96 | next = EXTRACT_16BITS(&hdr->ig_nx); |
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97 | |
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98 | (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)", |
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99 | tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)), |
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100 | IGRP_V(hdr->ig_vop), |
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101 | hdr->ig_ed, |
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102 | EXTRACT_16BITS(&hdr->ig_as), |
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103 | nint, |
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104 | nsys, |
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105 | next); |
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106 | |
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107 | length -= sizeof(*hdr); |
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108 | while (length >= IGRP_RTE_SIZE) { |
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109 | if (nint > 0) { |
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110 | TCHECK2(*cp, IGRP_RTE_SIZE); |
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111 | igrp_entry_print((struct igrprte *)cp, 1, 0); |
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112 | --nint; |
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113 | } else if (nsys > 0) { |
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114 | TCHECK2(*cp, IGRP_RTE_SIZE); |
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115 | igrp_entry_print((struct igrprte *)cp, 0, 0); |
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116 | --nsys; |
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117 | } else if (next > 0) { |
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118 | TCHECK2(*cp, IGRP_RTE_SIZE); |
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119 | igrp_entry_print((struct igrprte *)cp, 0, 1); |
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120 | --next; |
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121 | } else { |
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122 | (void)printf(" [extra bytes %d]", length); |
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123 | break; |
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124 | } |
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125 | cp += IGRP_RTE_SIZE; |
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126 | length -= IGRP_RTE_SIZE; |
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127 | } |
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128 | if (nint == 0 && nsys == 0 && next == 0) |
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129 | return; |
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130 | trunc: |
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131 | fputs(" [|igrp]", stdout); |
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132 | } |
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