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) 1997 Yen Yen Lim and North Dakota State University |
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5 | * 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 the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * 3. All advertising materials mentioning features or use of this software |
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16 | * must display the following acknowledgement: |
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17 | * This product includes software developed by Yen Yen Lim and |
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18 | North Dakota State University |
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19 | * 4. The name of the author may not be used to endorse or promote products |
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20 | * derived from this software without specific prior written permission. |
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21 | * |
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22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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23 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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24 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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25 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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26 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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27 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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30 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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31 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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32 | * POSSIBILITY OF SUCH DAMAGE. |
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33 | */ |
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34 | #ifndef lint |
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35 | static const char rcsid[] _U_ = |
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36 | "@(#) $Header: /tcpdump/master/tcpdump/print-sunatm.c,v 1.8 2004-03-17 23:24:38 guy Exp $ (LBL)"; |
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37 | #endif |
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38 | |
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39 | #ifdef HAVE_CONFIG_H |
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40 | #include "config.h" |
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41 | #endif |
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42 | |
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43 | #include <tcpdump-stdinc.h> |
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44 | |
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45 | struct mbuf; |
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46 | struct rtentry; |
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47 | |
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48 | #include <stdio.h> |
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49 | #include <pcap.h> |
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50 | |
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51 | #include "interface.h" |
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52 | #include "extract.h" |
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53 | #include "addrtoname.h" |
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54 | |
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55 | #include "atm.h" |
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56 | #include "atmuni31.h" |
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57 | |
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58 | /* SunATM header for ATM packet */ |
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59 | #define DIR_POS 0 /* Direction (0x80 = transmit, 0x00 = receive) */ |
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60 | #define VPI_POS 1 /* VPI */ |
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61 | #define VCI_POS 2 /* VCI */ |
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62 | #define PKT_BEGIN_POS 4 /* Start of the ATM packet */ |
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63 | |
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64 | /* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */ |
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65 | #define PT_LANE 0x01 /* LANE */ |
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66 | #define PT_LLC 0x02 /* LLC encapsulation */ |
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67 | |
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68 | /* |
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69 | * This is the top level routine of the printer. 'p' points |
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70 | * to the SunATM pseudo-header for the packet, 'h->ts' is the timestamp, |
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71 | * 'h->len' is the length of the packet off the wire, and 'h->caplen' |
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72 | * is the number of bytes actually captured. |
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73 | */ |
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74 | u_int |
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75 | sunatm_if_print(const struct pcap_pkthdr *h, const u_char *p) |
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76 | { |
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77 | u_int caplen = h->caplen; |
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78 | u_int length = h->len; |
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79 | u_short vci; |
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80 | u_char vpi; |
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81 | u_int traftype; |
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82 | |
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83 | if (caplen < PKT_BEGIN_POS) { |
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84 | printf("[|atm]"); |
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85 | return (caplen); |
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86 | } |
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87 | |
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88 | if (eflag) { |
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89 | if (p[DIR_POS] & 0x80) |
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90 | printf("Tx: "); |
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91 | else |
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92 | printf("Rx: "); |
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93 | } |
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94 | |
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95 | switch (p[DIR_POS] & 0x0f) { |
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96 | |
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97 | case PT_LANE: |
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98 | traftype = ATM_LANE; |
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99 | break; |
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100 | |
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101 | case PT_LLC: |
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102 | traftype = ATM_LLC; |
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103 | break; |
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104 | |
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105 | default: |
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106 | traftype = ATM_UNKNOWN; |
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107 | break; |
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108 | } |
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109 | |
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110 | vci = EXTRACT_16BITS(&p[VCI_POS]); |
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111 | vpi = p[VPI_POS]; |
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112 | |
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113 | p += PKT_BEGIN_POS; |
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114 | caplen -= PKT_BEGIN_POS; |
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115 | length -= PKT_BEGIN_POS; |
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116 | atm_print(vpi, vci, traftype, p, length, caplen); |
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117 | |
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118 | return (PKT_BEGIN_POS); |
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119 | } |
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