b636d99d91
For now, printing of Sun RPC requests is disabled because we do not yet have the RPC header files. This should affect basically noone, as we do not have any RPC-based programs yet, for the same reason. Change-Id: Ie7818faaaacdc104d8b2c37a68866b4ce18247d6
244 lines
6.5 KiB
C
244 lines
6.5 KiB
C
/*
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* Copyright (c) 1994, 1995, 1996
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Format and print Novell IPX packets.
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* Contributed by Brad Parker (brad@fcr.com).
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: print-ipx.c,v 1.4 2014/11/20 03:05:03 christos Exp $");
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#endif
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#define NETDISSECT_REWORKED
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tcpdump-stdinc.h>
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#include <stdio.h>
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#include "interface.h"
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#include "addrtoname.h"
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#include "extract.h"
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/* well-known sockets */
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#define IPX_SKT_NCP 0x0451
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#define IPX_SKT_SAP 0x0452
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#define IPX_SKT_RIP 0x0453
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#define IPX_SKT_NETBIOS 0x0455
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#define IPX_SKT_DIAGNOSTICS 0x0456
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#define IPX_SKT_NWLINK_DGM 0x0553 /* NWLink datagram, may contain SMB */
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#define IPX_SKT_EIGRP 0x85be /* Cisco EIGRP over IPX */
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/* IPX transport header */
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struct ipxHdr {
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uint16_t cksum; /* Checksum */
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uint16_t length; /* Length, in bytes, including header */
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uint8_t tCtl; /* Transport Control (i.e. hop count) */
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uint8_t pType; /* Packet Type (i.e. level 2 protocol) */
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uint16_t dstNet[2]; /* destination net */
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uint8_t dstNode[6]; /* destination node */
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uint16_t dstSkt; /* destination socket */
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uint16_t srcNet[2]; /* source net */
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uint8_t srcNode[6]; /* source node */
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uint16_t srcSkt; /* source socket */
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};
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#define ipxSize 30
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static const char *ipxaddr_string(uint32_t, const u_char *);
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static void ipx_decode(netdissect_options *, const struct ipxHdr *, const u_char *, u_int);
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static void ipx_sap_print(netdissect_options *, const u_short *, u_int);
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static void ipx_rip_print(netdissect_options *, const u_short *, u_int);
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/*
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* Print IPX datagram packets.
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*/
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void
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ipx_print(netdissect_options *ndo, const u_char *p, u_int length)
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{
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const struct ipxHdr *ipx = (const struct ipxHdr *)p;
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if (!ndo->ndo_eflag)
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ND_PRINT((ndo, "IPX "));
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ND_TCHECK(ipx->srcSkt);
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ND_PRINT((ndo, "%s.%04x > ",
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ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),
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EXTRACT_16BITS(&ipx->srcSkt)));
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ND_PRINT((ndo, "%s.%04x: ",
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ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),
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EXTRACT_16BITS(&ipx->dstSkt)));
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/* take length from ipx header */
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ND_TCHECK(ipx->length);
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length = EXTRACT_16BITS(&ipx->length);
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ipx_decode(ndo, ipx, (u_char *)ipx + ipxSize, length - ipxSize);
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return;
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trunc:
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ND_PRINT((ndo, "[|ipx %d]", length));
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}
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static const char *
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ipxaddr_string(uint32_t net, const u_char *node)
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{
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static char line[256];
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snprintf(line, sizeof(line), "%08x.%02x:%02x:%02x:%02x:%02x:%02x",
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net, node[0], node[1], node[2], node[3], node[4], node[5]);
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return line;
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}
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static void
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ipx_decode(netdissect_options *ndo, const struct ipxHdr *ipx, const u_char *datap, u_int length)
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{
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register u_short dstSkt;
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dstSkt = EXTRACT_16BITS(&ipx->dstSkt);
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switch (dstSkt) {
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case IPX_SKT_NCP:
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ND_PRINT((ndo, "ipx-ncp %d", length));
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break;
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case IPX_SKT_SAP:
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ipx_sap_print(ndo, (u_short *)datap, length);
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break;
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case IPX_SKT_RIP:
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ipx_rip_print(ndo, (u_short *)datap, length);
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break;
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case IPX_SKT_NETBIOS:
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ND_PRINT((ndo, "ipx-netbios %d", length));
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#ifdef TCPDUMP_DO_SMB
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ipx_netbios_print(ndo, datap, length);
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#endif
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break;
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case IPX_SKT_DIAGNOSTICS:
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ND_PRINT((ndo, "ipx-diags %d", length));
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break;
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case IPX_SKT_NWLINK_DGM:
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ND_PRINT((ndo, "ipx-nwlink-dgm %d", length));
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#ifdef TCPDUMP_DO_SMB
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ipx_netbios_print(ndo, datap, length);
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#endif
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break;
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case IPX_SKT_EIGRP:
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eigrp_print(ndo, datap, length);
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break;
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default:
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ND_PRINT((ndo, "ipx-#%x %d", dstSkt, length));
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break;
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}
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}
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static void
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ipx_sap_print(netdissect_options *ndo, const u_short *ipx, u_int length)
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{
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int command, i;
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ND_TCHECK(ipx[0]);
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command = EXTRACT_16BITS(ipx);
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ipx++;
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length -= 2;
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switch (command) {
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case 1:
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case 3:
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if (command == 1)
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ND_PRINT((ndo, "ipx-sap-req"));
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else
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ND_PRINT((ndo, "ipx-sap-nearest-req"));
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ND_TCHECK(ipx[0]);
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ND_PRINT((ndo, " %s", ipxsap_string(htons(EXTRACT_16BITS(&ipx[0])))));
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break;
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case 2:
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case 4:
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if (command == 2)
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ND_PRINT((ndo, "ipx-sap-resp"));
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else
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ND_PRINT((ndo, "ipx-sap-nearest-resp"));
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for (i = 0; i < 8 && length > 0; i++) {
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ND_TCHECK(ipx[0]);
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ND_PRINT((ndo, " %s '", ipxsap_string(htons(EXTRACT_16BITS(&ipx[0])))));
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if (fn_printzp(ndo, (u_char *)&ipx[1], 48, ndo->ndo_snapend)) {
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ND_PRINT((ndo, "'"));
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goto trunc;
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}
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ND_TCHECK2(ipx[25], 10);
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ND_PRINT((ndo, "' addr %s",
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ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (u_char *)&ipx[27])));
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ipx += 32;
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length -= 64;
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}
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break;
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default:
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ND_PRINT((ndo, "ipx-sap-?%x", command));
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break;
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}
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return;
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trunc:
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ND_PRINT((ndo, "[|ipx %d]", length));
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}
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static void
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ipx_rip_print(netdissect_options *ndo, const u_short *ipx, u_int length)
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{
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int command, i;
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ND_TCHECK(ipx[0]);
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command = EXTRACT_16BITS(ipx);
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ipx++;
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length -= 2;
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switch (command) {
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case 1:
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ND_PRINT((ndo, "ipx-rip-req"));
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if (length > 0) {
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ND_TCHECK(ipx[3]);
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ND_PRINT((ndo, " %08x/%d.%d", EXTRACT_32BITS(&ipx[0]),
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EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3])));
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}
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break;
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case 2:
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ND_PRINT((ndo, "ipx-rip-resp"));
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for (i = 0; i < 50 && length > 0; i++) {
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ND_TCHECK(ipx[3]);
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ND_PRINT((ndo, " %08x/%d.%d", EXTRACT_32BITS(&ipx[0]),
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EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3])));
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ipx += 4;
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length -= 8;
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}
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break;
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default:
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ND_PRINT((ndo, "ipx-rip-?%x", command));
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break;
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}
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return;
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trunc:
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ND_PRINT((ndo, "[|ipx %d]", length));
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}
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