d5a5022d60
Always display IPX network number in decimal (industry standard). Decode other PPP protocol types too. Submitted by: peter, pst, John Hay <jhay@mikom.csir.co.za>
164 lines
4.1 KiB
C
164 lines
4.1 KiB
C
/*
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* Copyright (c) 1990, 1991, 1993, 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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#ifndef lint
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static char rcsid[] =
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"@(#)$Header: print-ppp.c,v 1.22 96/07/14 19:39:03 leres Exp $ (LBL)";
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#endif
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#ifdef PPP
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#if __STDC__
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struct mbuf;
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struct rtentry;
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#endif
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <ctype.h>
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#include <netdb.h>
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#include <pcap.h>
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#include <signal.h>
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#include <stdio.h>
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#include <netinet/if_ether.h>
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#include "ethertype.h"
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#include <net/ppp_defs.h>
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#include "interface.h"
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#include "addrtoname.h"
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struct protonames {
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u_short protocol;
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char *name;
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};
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static struct protonames protonames[] = {
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/*
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* Protocol field values.
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*/
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PPP_IP, "IP", /* Internet Protocol */
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PPP_XNS, "XNS", /* Xerox NS */
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PPP_IPX, "IPX", /* IPX Datagram (RFC1552) */
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PPP_VJC_COMP, "VJC_UNCOMP", /* VJ compressed TCP */
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PPP_VJC_UNCOMP, "VJC_UNCOMP", /* VJ uncompressed TCP */
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PPP_COMP, "COMP", /* compressed packet */
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PPP_IPCP, "IPCP", /* IP Control Protocol */
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PPP_IPXCP, "IPXCP", /* IPX Control Protocol (RFC1552) */
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PPP_CCP, "CCP", /* Compression Control Protocol */
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PPP_LCP, "LCP", /* Link Control Protocol */
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PPP_PAP, "PAP", /* Password Authentication Protocol */
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PPP_LQR, "LQR", /* Link Quality Report protocol */
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PPP_CHAP, "CHAP", /* Cryptographic Handshake Auth. Proto*/
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};
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void
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ppp_hdlc_print(const u_char *p, int length)
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{
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int proto = PPP_PROTOCOL(p);
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int i;
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printf("%4d %02x ", length, PPP_CONTROL(p));
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for (i = (sizeof(protonames) / sizeof(protonames[0])) - 1; i >= 0; --i){
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if (proto == protonames[i].protocol) {
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printf("%s: ", protonames[i].name);
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break;
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}
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}
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if (i < 0)
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printf("%04x: ", proto);
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}
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void
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ppp_if_print(u_char *user, const struct pcap_pkthdr *h,
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register const u_char *p)
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{
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register u_int length = h->len;
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register u_int caplen = h->caplen;
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ts_print(&h->ts);
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if (caplen < PPP_HDRLEN) {
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printf("[|ppp]");
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goto out;
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}
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/*
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* Some printers want to get back at the link level addresses,
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* and/or check that they're not walking off the end of the packet.
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* Rather than pass them all the way down, we set these globals.
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*/
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packetp = p;
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snapend = p + caplen;
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if (eflag)
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ppp_hdlc_print(p, length);
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length -= PPP_HDRLEN;
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switch(PPP_PROTOCOL(p)) {
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case PPP_IP:
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case ETHERTYPE_IP:
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ip_print((const u_char *)(p + PPP_HDRLEN), length);
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break;
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case PPP_IPX:
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case ETHERTYPE_IPX:
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ipx_print((const u_char *)(p + PPP_HDRLEN), length);
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break;
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default:
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if(!eflag)
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ppp_hdlc_print(p, length);
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if(!xflag)
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default_print((const u_char *)(p + PPP_HDRLEN),
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caplen - PPP_HDRLEN);
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}
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if (xflag)
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default_print((const u_char *)(p + PPP_HDRLEN),
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caplen - PPP_HDRLEN);
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out:
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putchar('\n');
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}
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#else
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#include <sys/types.h>
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#include <sys/time.h>
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#include <stdio.h>
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#include "interface.h"
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void
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ppp_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
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{
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error("not configured for ppp");
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/* NOTREACHED */
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}
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#endif
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