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Diffstat (limited to 'print-ipoib.c')
| -rw-r--r-- | print-ipoib.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/print-ipoib.c b/print-ipoib.c new file mode 100644 index 0000000..3d43123 --- /dev/null +++ b/print-ipoib.c @@ -0,0 +1,125 @@ +/* + * 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 */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#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); +} |