[dragonfly.git] / contrib / tcpdump / print-ipfc.c

/*
 * Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static const char rcsid[] _U_ =
    "@(#) $Header: /tcpdump/master/tcpdump/print-ipfc.c,v 1.7.2.2 2005/11/13 12:12:59 guy Exp $ (LBL)";
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <tcpdump-stdinc.h>

#include <pcap.h>
#include <stdio.h>
#include <string.h>

#include "interface.h"
#include "addrtoname.h"
#include "ethertype.h"

#include "ether.h"
#include "ipfc.h"

/*
 * RFC 2625 IP-over-Fibre Channel.
 */

/* Extract src, dst addresses */
static inline void
extract_ipfc_addrs(const struct ipfc_header *ipfcp, char *ipfcsrc,
    char *ipfcdst)
{
	/*
	 * We assume that, as per RFC 2625, the lower 48 bits of the
	 * source and destination addresses are MAC addresses.
	 */
	memcpy(ipfcdst, (const char *)&ipfcp->ipfc_dhost[2], 6);
	memcpy(ipfcsrc, (const char *)&ipfcp->ipfc_shost[2], 6);
}

/*
 * Print the Network_Header
 */
static inline void
ipfc_hdr_print(register const struct ipfc_header *ipfcp _U_,
	   register u_int length, register const u_char *ipfcsrc,
	   register const u_char *ipfcdst)
{
	const char *srcname, *dstname;

	srcname = etheraddr_string(ipfcsrc);
	dstname = etheraddr_string(ipfcdst);

	/*
	 * XXX - show the upper 16 bits?  Do so only if "vflag" is set?
	 */
	(void) printf("%s %s %d: ", srcname, dstname, length);
}

static void
ipfc_print(const u_char *p, u_int length, u_int caplen)
{
	const struct ipfc_header *ipfcp = (const struct ipfc_header *)p;
	struct ether_header ehdr;
	u_short extracted_ethertype;

	if (caplen < IPFC_HDRLEN) {
		printf("[|ipfc]");
		return;
	}
	/*
	 * Get the network addresses into a canonical form
	 */
	extract_ipfc_addrs(ipfcp, (char *)ESRC(&ehdr), (char *)EDST(&ehdr));

	if (eflag)
		ipfc_hdr_print(ipfcp, length, ESRC(&ehdr), EDST(&ehdr));

	/* Skip over Network_Header */
	length -= IPFC_HDRLEN;
	p += IPFC_HDRLEN;
	caplen -= IPFC_HDRLEN;

	/* Try to print the LLC-layer header & higher layers */
	if (llc_print(p, length, caplen, ESRC(&ehdr), EDST(&ehdr),
	    &extracted_ethertype) == 0) {
		/*
		 * Some kinds of LLC packet we cannot
		 * handle intelligently
		 */
		if (!eflag)
			ipfc_hdr_print(ipfcp, length + IPFC_HDRLEN,
			    ESRC(&ehdr), EDST(&ehdr));
		if (extracted_ethertype) {
			printf("(LLC %s) ",
		etherproto_string(htons(extracted_ethertype)));
		}
		if (!suppress_default_print)
			default_print(p, caplen);
	}
}

/*
 * This is the top level routine of the printer.  'p' points
 * to the Network_Header of the packet, 'h->ts' is the timestamp,
 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
 * is the number of bytes actually captured.
 */
u_int
ipfc_if_print(const struct pcap_pkthdr *h, register const u_char *p)
{
	ipfc_print(p, h->len, h->caplen);

	return (IPFC_HDRLEN);
}
Commit	Line	Data
c8cf0f94 PA	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_ =
	24	"@(#) $Header: /tcpdump/master/tcpdump/print-ipfc.c,v 1.7.2.2 2005/11/13 12:12:59 guy Exp $ (LBL)";
	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	}