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238 lines
6.4 KiB
238 lines
6.4 KiB
/* |
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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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* Contributed by Brad Parker (brad@fcr.com). |
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*/ |
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/* \summary: Novell IPX printer */ |
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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 <netdissect-stdinc.h> |
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#include <stdio.h> |
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#include "netdissect.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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/* |
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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, p + 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, (const 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, (const 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 ENABLE_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 ENABLE_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(ndo, 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(ndo, htons(EXTRACT_16BITS(&ipx[0]))))); |
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if (fn_printzp(ndo, (const 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]), (const 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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