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Diffstat (limited to 'contrib/tcpdump/print-medsa.c')
| -rw-r--r-- | contrib/tcpdump/print-medsa.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/contrib/tcpdump/print-medsa.c b/contrib/tcpdump/print-medsa.c deleted file mode 100644 index 4895fd94a41e..000000000000 --- a/contrib/tcpdump/print-medsa.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * Copyright (c) 1988, 1989, 1990, 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. - */ - -/* \summary: Marvell Extended Distributed Switch Architecture (MEDSA) printer */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <netdissect-stdinc.h> - -#include "netdissect.h" -#include "ether.h" -#include "ethertype.h" -#include "addrtoname.h" -#include "extract.h" - -static const char tstr[] = "[|MEDSA]"; - -/* - * Marvell Extended Distributed Switch Archiecture. - * - * A Marvell propriatary header used for passing packets to/from - * specific ports of a switch. There is no open specification of this - * header, but is documented in the Marvell Switch data sheets. For - * background, see: - * - * https://lwn.net/Articles/302333/ - */ -struct medsa_pkthdr { - u_char bytes[6]; - u_short ether_type; -}; - -/* Bytes 0 and 1 are reserved and should contain 0 */ -#define TAG(medsa) (medsa->bytes[2] >> 6) -#define TAG_TO_CPU 0 -#define TAG_FROM_CPU 1 -#define TAG_FORWARD 3 -#define SRC_TAG(medsa) ((medsa->bytes[2] >> 5) & 0x01) -#define SRC_DEV(medsa) (medsa->bytes[2] & 0x1f) -#define SRC_PORT(medsa) ((medsa->bytes[3] >> 3) & 0x01f) -#define TRUNK(medsa) ((medsa->bytes[3] >> 2) & 0x01) -#define CODE(medsa) ((medsa->bytes[3] & 0x06) | \ - ((medsa->bytes[4] >> 4) & 0x01)) -#define CODE_BDPU 0 -#define CODE_IGMP_MLD 2 -#define CODE_ARP_MIRROR 4 -#define CFI(medsa) (medsa->bytes[3] & 0x01) -#define PRI(medsa) (medsa->bytes[4] >> 5) -#define VID(medsa) (((u_short)(medsa->bytes[4] & 0xf) << 8 | \ - medsa->bytes[5])) - -static const struct tok tag_values[] = { - { TAG_TO_CPU, "To_CPU" }, - { TAG_FROM_CPU, "From_CPU" }, - { TAG_FORWARD, "Forward" }, - { 0, NULL }, -}; - -static const struct tok code_values[] = { - { CODE_BDPU, "BDPU" }, - { CODE_IGMP_MLD, "IGMP/MLD" }, - { CODE_ARP_MIRROR, "APR_Mirror" }, - { 0, NULL }, -}; - -static void -medsa_print_full(netdissect_options *ndo, - const struct medsa_pkthdr *medsa, - u_int caplen) -{ - u_char tag = TAG(medsa); - - ND_PRINT((ndo, "%s", - tok2str(tag_values, "Unknown (%u)", tag))); - - switch (tag) { - case TAG_TO_CPU: - ND_PRINT((ndo, ", %stagged", SRC_TAG(medsa) ? "" : "un")); - ND_PRINT((ndo, ", dev.port:vlan %d.%d:%d", - SRC_DEV(medsa), SRC_PORT(medsa), VID(medsa))); - - ND_PRINT((ndo, ", %s", - tok2str(code_values, "Unknown (%u)", CODE(medsa)))); - if (CFI(medsa)) - ND_PRINT((ndo, ", CFI")); - - ND_PRINT((ndo, ", pri %d: ", PRI(medsa))); - break; - case TAG_FROM_CPU: - ND_PRINT((ndo, ", %stagged", SRC_TAG(medsa) ? "" : "un")); - ND_PRINT((ndo, ", dev.port:vlan %d.%d:%d", - SRC_DEV(medsa), SRC_PORT(medsa), VID(medsa))); - - if (CFI(medsa)) - ND_PRINT((ndo, ", CFI")); - - ND_PRINT((ndo, ", pri %d: ", PRI(medsa))); - break; - case TAG_FORWARD: - ND_PRINT((ndo, ", %stagged", SRC_TAG(medsa) ? "" : "un")); - if (TRUNK(medsa)) - ND_PRINT((ndo, ", dev.trunk:vlan %d.%d:%d", - SRC_DEV(medsa), SRC_PORT(medsa), VID(medsa))); - else - ND_PRINT((ndo, ", dev.port:vlan %d.%d:%d", - SRC_DEV(medsa), SRC_PORT(medsa), VID(medsa))); - - if (CFI(medsa)) - ND_PRINT((ndo, ", CFI")); - - ND_PRINT((ndo, ", pri %d: ", PRI(medsa))); - break; - default: - ND_DEFAULTPRINT((const u_char *)medsa, caplen); - return; - } -} - -void -medsa_print(netdissect_options *ndo, - const u_char *bp, u_int length, u_int caplen, - const struct lladdr_info *src, const struct lladdr_info *dst) -{ - const struct medsa_pkthdr *medsa; - u_short ether_type; - - medsa = (const struct medsa_pkthdr *)bp; - ND_TCHECK(*medsa); - - if (!ndo->ndo_eflag) - ND_PRINT((ndo, "MEDSA %d.%d:%d: ", - SRC_DEV(medsa), SRC_PORT(medsa), VID(medsa))); - else - medsa_print_full(ndo, medsa, caplen); - - bp += 8; - length -= 8; - caplen -= 8; - - ether_type = EXTRACT_16BITS(&medsa->ether_type); - if (ether_type <= ETHERMTU) { - /* Try to print the LLC-layer header & higher layers */ - if (llc_print(ndo, bp, length, caplen, src, dst) < 0) { - /* packet type not known, print raw packet */ - if (!ndo->ndo_suppress_default_print) - ND_DEFAULTPRINT(bp, caplen); - } - } else { - if (ndo->ndo_eflag) - ND_PRINT((ndo, "ethertype %s (0x%04x) ", - tok2str(ethertype_values, "Unknown", - ether_type), - ether_type)); - if (ethertype_print(ndo, ether_type, bp, length, caplen, src, dst) == 0) { - /* ether_type not known, print raw packet */ - if (!ndo->ndo_eflag) - ND_PRINT((ndo, "ethertype %s (0x%04x) ", - tok2str(ethertype_values, "Unknown", - ether_type), - ether_type)); - - if (!ndo->ndo_suppress_default_print) - ND_DEFAULTPRINT(bp, caplen); - } - } - return; -trunc: - ND_PRINT((ndo, "%s", tstr)); -} - -/* - * Local Variables: - * c-style: bsd - * End: - */ - |