| /* |
| * 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. |
| */ |
| |
| #ifndef lint |
| static const char rcsid[] = |
| "@(#) $Header: /tcpdump/master/tcpdump/Attic/print-lcp.c,v 1.9 2000-10-06 04:23:12 guy Exp $ (LBL)"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <sys/param.h> |
| #include <sys/time.h> |
| #include <sys/socket.h> |
| |
| #include <netinet/in.h> |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "interface.h" |
| #include "addrtoname.h" |
| #include "extract.h" /* must come after interface.h */ |
| #include "ppp.h" |
| |
| /* Codes */ |
| enum { |
| LCP_CONFREQ = 1, |
| LCP_CONFACK = 2, |
| LCP_CONFNAK = 3, |
| LCP_CONFREJ = 4, |
| LCP_TERMREQ = 5, |
| LCP_TERMACK = 6, |
| LCP_CODEREJ = 7, |
| LCP_PROTREJ = 8, |
| LCP_ECHOREQ = 9, |
| LCP_ECHOREP = 10, |
| LCP_DISCARD = 11 |
| }; |
| |
| static struct tok lcpcode2str[] = { |
| { LCP_CONFREQ, "ConfReq" }, |
| { LCP_CONFACK, "ConfAck" }, |
| { LCP_CONFNAK, "ConfNak" }, |
| { LCP_CONFREJ, "ConfRej" }, |
| { LCP_TERMREQ, "TermReq" }, |
| { LCP_TERMACK, "TermAck" }, |
| { LCP_CODEREJ, "CodeRej" }, |
| { LCP_PROTREJ, "ProtRej" }, |
| { LCP_ECHOREQ, "EchoReq" }, |
| { LCP_ECHOREP, "EchoRep" }, |
| { LCP_DISCARD, "Discard" }, |
| { 0, NULL } |
| }; |
| |
| |
| enum { |
| LCP_RESERVED = 0, |
| LCP_MRU = 1, |
| LCP_ASYNCMAP = 2, |
| LCP_AUTHPROTO = 3, |
| LCP_QUALPROTO = 4, |
| LCP_MAGICNUM = 5, |
| LCP_PCOMP = 7, |
| LCP_ACFCOMP = 8, |
| LCP_CALLBACK = 13 |
| }; |
| |
| static struct tok lcpoption2str[] = { |
| { LCP_RESERVED, "reserved"}, |
| { LCP_MRU, "mru"}, |
| { LCP_ASYNCMAP, "asyncmap"}, |
| { LCP_AUTHPROTO, "auth"}, |
| { LCP_QUALPROTO, "qual"}, |
| { LCP_MAGICNUM, "magic"}, |
| { LCP_PCOMP, "pcomp"}, |
| { LCP_ACFCOMP, "acfcomp"}, |
| { LCP_CALLBACK, "callback"}, |
| { 0, NULL } |
| }; |
| |
| static struct tok lcpauth2str[] = { |
| {0xc023, "PAP"}, |
| {0xc223, "CHAP"}, |
| { 0, NULL } |
| }; |
| |
| static struct tok lcpqual2str[] = { |
| {0xc025, "LQR"}, |
| { 0, NULL } |
| }; |
| |
| static struct tok lcpchap2str[] = { |
| {0x05, "MD5"}, |
| {0x80, "MS"}, |
| { 0, NULL } |
| }; |
| |
| void |
| lcp_print(register const u_char *bp, u_int length) |
| { |
| u_short lcp_code, lcp_id, lcp_length; |
| const u_char *lcp_data; |
| |
| lcp_data = bp+4; |
| |
| if (snapend < lcp_data) { |
| printf(" [LCP|]"); |
| return; |
| } |
| |
| lcp_code = bp[0]; |
| lcp_id = bp[1]; |
| lcp_length = EXTRACT_16BITS(bp+2); |
| |
| printf("LCP %s id=0x%x", tok2str(lcpcode2str, "LCP-#%d", lcp_code), lcp_id); |
| |
| switch (lcp_code) { |
| case LCP_CONFREQ: |
| case LCP_CONFACK: |
| case LCP_CONFNAK: |
| case LCP_CONFREJ: |
| /* Print Options */ |
| { |
| u_char lcpopt_type, lcpopt_length; |
| const u_char *p=lcp_data; |
| while (p+2 < lcp_data+lcp_length && p+2 < snapend) { |
| lcpopt_type = p[0]; |
| lcpopt_length = p[1]; |
| p+=2; |
| printf(" <%s ",tok2str(lcpoption2str, "option-#%d", lcpopt_type)); |
| if (lcpopt_length) |
| switch (lcpopt_type) { |
| case LCP_MRU: |
| if (snapend < p+2) return; |
| printf("%d",ntohs(*(u_short*)p)); |
| if (lcpopt_length != 4) printf(" len=%d!",lcpopt_length); |
| break; |
| case LCP_AUTHPROTO: |
| if (snapend < p+2) return; |
| printf("%s",tok2str(lcpauth2str, "AUTH-%#x", ntohs(*(u_short*)p))); |
| if (lcpopt_length < 4) printf(" len=%d!",lcpopt_length); |
| if (lcpopt_length >= 5 && p < snapend) |
| printf(" %s",tok2str(lcpchap2str, "%#x", p[0])); |
| break; |
| case LCP_QUALPROTO: |
| if (snapend < p+2) return; |
| printf("%s",tok2str(lcpqual2str, "QUAL-%#x", ntohs(*(u_short*)p))); |
| if (lcpopt_length < 4) printf(" len=%d!",lcpopt_length); |
| /* Print data field of auth? */ |
| break; |
| case LCP_ASYNCMAP: |
| case LCP_MAGICNUM: |
| if (snapend < p+4) return; |
| printf("%#x", (unsigned)ntohl(*(u_long*)p)); |
| if (lcpopt_length != 6) printf(" len=%d!",lcpopt_length); |
| break; |
| case LCP_PCOMP: |
| case LCP_ACFCOMP: |
| case LCP_RESERVED: |
| if (lcpopt_length != 2) printf(" len=%d!",lcpopt_length); |
| break; |
| default: |
| if (lcpopt_length != 2) printf(" len=%d",lcpopt_length); |
| break; |
| } |
| printf(">"); |
| p+=lcpopt_length-2; |
| } |
| } |
| break; |
| case LCP_ECHOREQ: |
| case LCP_ECHOREP: |
| case LCP_DISCARD: |
| if (snapend < lcp_data+4) return; |
| printf(" magic=%#x", (unsigned)ntohl(*(u_long *) lcp_data)); |
| lcp_data +=4; |
| break; |
| case LCP_PROTREJ: |
| if (snapend < lcp_data+2) return; |
| printf(" prot=%s", tok2str(ppptype2str, "PROT-%#x", ntohs(*(u_short *) lcp_data))); |
| /* TODO print rejected packet too ? */ |
| break; |
| case LCP_CODEREJ: |
| if (snapend < lcp_data+4) return; |
| printf(" "); |
| lcp_print(lcp_data, (lcp_length+lcp_data > snapend ? snapend-lcp_data : lcp_length)); |
| break; |
| case LCP_TERMREQ: |
| case LCP_TERMACK: |
| break; |
| default: |
| break; |
| } |
| |
| return; |
| } |