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/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
* 1997, 2000, 2011, 2012
* 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.
*/
/*
* Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
*/
/* \summary: IP-over-InfiniBand (IPoIB) printer */
#include <config.h>
#include "netdissect-stdinc.h"
#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
extern const struct tok ethertype_values[];
#define IPOIB_HDRLEN 44
static inline void
ipoib_hdr_print(netdissect_options *ndo, const u_char *bp, u_int length)
{
uint16_t ether_type;
ether_type = GET_BE_U_2(bp + 40);
if (!ndo->ndo_qflag) {
ND_PRINT(", ethertype %s (0x%04x)",
tok2str(ethertype_values,"Unknown", ether_type),
ether_type);
} else {
ND_PRINT(", ethertype %s",
tok2str(ethertype_values,"Unknown", ether_type));
}
ND_PRINT(", length %u: ", length);
}
/*
* Print an InfiniBand frame.
* This might be encapsulated within another frame; we might be passed
* a pointer to a function that can print header information for that
* frame's protocol, and an argument to pass to that function.
*/
static void
ipoib_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen,
void (*print_encap_header)(const u_char *), const u_char *encap_header_arg)
{
const u_char *orig_hdr = p;
u_int orig_length;
u_short ether_type;
if (caplen < IPOIB_HDRLEN) {
nd_print_trunc(ndo);
ndo->ndo_ll_hdr_len += caplen;
return;
}
if (length < IPOIB_HDRLEN) {
nd_print_trunc(ndo);
ndo->ndo_ll_hdr_len += length;
return;
}
if (ndo->ndo_eflag) {
nd_print_protocol_caps(ndo);
if (print_encap_header != NULL)
(*print_encap_header)(encap_header_arg);
ipoib_hdr_print(ndo, p, length);
}
orig_length = length;
ndo->ndo_ll_hdr_len += IPOIB_HDRLEN;
length -= IPOIB_HDRLEN;
caplen -= IPOIB_HDRLEN;
ether_type = GET_BE_U_2(p + 40);
p += IPOIB_HDRLEN;
if (ethertype_print(ndo, ether_type, p, length, caplen, NULL, NULL) == 0) {
/* ether_type not known, print raw packet */
if (!ndo->ndo_eflag) {
if (print_encap_header != NULL)
(*print_encap_header)(encap_header_arg);
ipoib_hdr_print(ndo, orig_hdr , orig_length);
}
if (!ndo->ndo_suppress_default_print)
ND_DEFAULTPRINT(p, caplen);
}
}
/*
* This is the top level routine of the printer. 'p' points
* to the ether 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.
*/
void
ipoib_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
{
ndo->ndo_protocol = "ipoib";
ipoib_print(ndo, p, h->len, h->caplen, NULL, NULL);
}
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