The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that: (1) source code distributions |
| 7 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 8 | * distributions including binary code include the above copyright notice and |
| 9 | * this paragraph in its entirety in the documentation or other materials |
| 10 | * provided with the distribution, and (3) all advertising materials mentioning |
| 11 | * features or use of this software display the following acknowledgement: |
| 12 | * ``This product includes software developed by the University of California, |
| 13 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 14 | * the University nor the names of its contributors may be used to endorse |
| 15 | * or promote products derived from this software without specific prior |
| 16 | * written permission. |
| 17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | */ |
| 21 | |
| 22 | #ifndef lint |
| 23 | static const char rcsid[] _U_ = |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 24 | "@(#) $Header: /tcpdump/master/tcpdump/print-ipfc.c,v 1.9 2005-11-13 12:12:42 guy Exp $ (LBL)"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 25 | #endif |
| 26 | |
| 27 | #ifdef HAVE_CONFIG_H |
| 28 | #include "config.h" |
| 29 | #endif |
| 30 | |
| 31 | #include <tcpdump-stdinc.h> |
| 32 | |
| 33 | #include <pcap.h> |
| 34 | #include <stdio.h> |
| 35 | #include <string.h> |
| 36 | |
| 37 | #include "interface.h" |
| 38 | #include "addrtoname.h" |
| 39 | #include "ethertype.h" |
| 40 | |
| 41 | #include "ether.h" |
| 42 | #include "ipfc.h" |
| 43 | |
| 44 | /* |
| 45 | * RFC 2625 IP-over-Fibre Channel. |
| 46 | */ |
| 47 | |
| 48 | /* Extract src, dst addresses */ |
| 49 | static inline void |
| 50 | extract_ipfc_addrs(const struct ipfc_header *ipfcp, char *ipfcsrc, |
| 51 | char *ipfcdst) |
| 52 | { |
| 53 | /* |
| 54 | * We assume that, as per RFC 2625, the lower 48 bits of the |
| 55 | * source and destination addresses are MAC addresses. |
| 56 | */ |
| 57 | memcpy(ipfcdst, (const char *)&ipfcp->ipfc_dhost[2], 6); |
| 58 | memcpy(ipfcsrc, (const char *)&ipfcp->ipfc_shost[2], 6); |
| 59 | } |
| 60 | |
| 61 | /* |
| 62 | * Print the Network_Header |
| 63 | */ |
| 64 | static inline void |
| 65 | ipfc_hdr_print(register const struct ipfc_header *ipfcp _U_, |
| 66 | register u_int length, register const u_char *ipfcsrc, |
| 67 | register const u_char *ipfcdst) |
| 68 | { |
| 69 | const char *srcname, *dstname; |
| 70 | |
| 71 | srcname = etheraddr_string(ipfcsrc); |
| 72 | dstname = etheraddr_string(ipfcdst); |
| 73 | |
| 74 | /* |
| 75 | * XXX - show the upper 16 bits? Do so only if "vflag" is set? |
| 76 | */ |
| 77 | (void) printf("%s %s %d: ", srcname, dstname, length); |
| 78 | } |
| 79 | |
| 80 | static void |
| 81 | ipfc_print(const u_char *p, u_int length, u_int caplen) |
| 82 | { |
| 83 | const struct ipfc_header *ipfcp = (const struct ipfc_header *)p; |
| 84 | struct ether_header ehdr; |
| 85 | u_short extracted_ethertype; |
| 86 | |
| 87 | if (caplen < IPFC_HDRLEN) { |
| 88 | printf("[|ipfc]"); |
| 89 | return; |
| 90 | } |
| 91 | /* |
| 92 | * Get the network addresses into a canonical form |
| 93 | */ |
| 94 | extract_ipfc_addrs(ipfcp, (char *)ESRC(&ehdr), (char *)EDST(&ehdr)); |
| 95 | |
| 96 | if (eflag) |
| 97 | ipfc_hdr_print(ipfcp, length, ESRC(&ehdr), EDST(&ehdr)); |
| 98 | |
| 99 | /* Skip over Network_Header */ |
| 100 | length -= IPFC_HDRLEN; |
| 101 | p += IPFC_HDRLEN; |
| 102 | caplen -= IPFC_HDRLEN; |
| 103 | |
| 104 | /* Try to print the LLC-layer header & higher layers */ |
| 105 | if (llc_print(p, length, caplen, ESRC(&ehdr), EDST(&ehdr), |
| 106 | &extracted_ethertype) == 0) { |
| 107 | /* |
| 108 | * Some kinds of LLC packet we cannot |
| 109 | * handle intelligently |
| 110 | */ |
| 111 | if (!eflag) |
| 112 | ipfc_hdr_print(ipfcp, length + IPFC_HDRLEN, |
| 113 | ESRC(&ehdr), EDST(&ehdr)); |
| 114 | if (extracted_ethertype) { |
| 115 | printf("(LLC %s) ", |
| 116 | etherproto_string(htons(extracted_ethertype))); |
| 117 | } |
| 118 | if (!suppress_default_print) |
| 119 | default_print(p, caplen); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | /* |
| 124 | * This is the top level routine of the printer. 'p' points |
| 125 | * to the Network_Header of the packet, 'h->ts' is the timestamp, |
| 126 | * 'h->len' is the length of the packet off the wire, and 'h->caplen' |
| 127 | * is the number of bytes actually captured. |
| 128 | */ |
| 129 | u_int |
| 130 | ipfc_if_print(const struct pcap_pkthdr *h, register const u_char *p) |
| 131 | { |
| 132 | ipfc_print(p, h->len, h->caplen); |
| 133 | |
| 134 | return (IPFC_HDRLEN); |
| 135 | } |