f49c5d523a
MFC after: 1 month
1239 lines
31 KiB
C
1239 lines
31 KiB
C
/*
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* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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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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* Internet, ethernet, port, and protocol string to address
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* and address to string conversion routines
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*
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* $FreeBSD$
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*/
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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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#ifdef HAVE_CAPSICUM
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#include <libcapsicum.h>
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#include <libcapsicum_dns.h>
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#endif /* HAVE_CAPSICUM */
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#include <tcpdump-stdinc.h>
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#ifdef USE_ETHER_NTOHOST
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#ifdef HAVE_NETINET_IF_ETHER_H
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struct mbuf; /* Squelch compiler warnings on some platforms for */
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struct rtentry; /* declarations in <net/if.h> */
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#include <net/if.h> /* for "struct ifnet" in "struct arpcom" on Solaris */
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#include <netinet/if_ether.h>
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#endif /* HAVE_NETINET_IF_ETHER_H */
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#ifdef NETINET_ETHER_H_DECLARES_ETHER_NTOHOST
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#include <netinet/ether.h>
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#endif /* NETINET_ETHER_H_DECLARES_ETHER_NTOHOST */
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#if !defined(HAVE_DECL_ETHER_NTOHOST) || !HAVE_DECL_ETHER_NTOHOST
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#ifndef HAVE_STRUCT_ETHER_ADDR
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struct ether_addr {
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unsigned char ether_addr_octet[6];
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};
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#endif
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extern int ether_ntohost(char *, const struct ether_addr *);
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#endif
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#endif /* USE_ETHER_NTOHOST */
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#include <pcap.h>
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#include <pcap-namedb.h>
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "interface.h"
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#include "addrtoname.h"
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#include "llc.h"
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#include "setsignal.h"
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#include "extract.h"
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#include "oui.h"
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#ifndef ETHER_ADDR_LEN
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#define ETHER_ADDR_LEN 6
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#endif
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/*
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* hash tables for whatever-to-name translations
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*
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* XXX there has to be error checks against strdup(3) failure
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*/
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#define HASHNAMESIZE 4096
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struct hnamemem {
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uint32_t addr;
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const char *name;
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struct hnamemem *nxt;
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};
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static struct hnamemem hnametable[HASHNAMESIZE];
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static struct hnamemem tporttable[HASHNAMESIZE];
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static struct hnamemem uporttable[HASHNAMESIZE];
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static struct hnamemem eprototable[HASHNAMESIZE];
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static struct hnamemem dnaddrtable[HASHNAMESIZE];
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static struct hnamemem ipxsaptable[HASHNAMESIZE];
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#if defined(INET6) && defined(WIN32)
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/*
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* fake gethostbyaddr for Win2k/XP
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* gethostbyaddr() returns incorrect value when AF_INET6 is passed
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* to 3rd argument.
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*
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* h_name in struct hostent is only valid.
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*/
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static struct hostent *
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win32_gethostbyaddr(const char *addr, int len, int type)
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{
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static struct hostent host;
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static char hostbuf[NI_MAXHOST];
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char hname[NI_MAXHOST];
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struct sockaddr_in6 addr6;
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host.h_name = hostbuf;
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switch (type) {
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case AF_INET:
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return gethostbyaddr(addr, len, type);
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break;
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case AF_INET6:
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memset(&addr6, 0, sizeof(addr6));
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addr6.sin6_family = AF_INET6;
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memcpy(&addr6.sin6_addr, addr, len);
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if (getnameinfo((struct sockaddr *)&addr6, sizeof(addr6),
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hname, sizeof(hname), NULL, 0, 0)) {
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return NULL;
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} else {
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strcpy(host.h_name, hname);
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return &host;
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}
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break;
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default:
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return NULL;
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}
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}
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#define gethostbyaddr win32_gethostbyaddr
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#endif /* INET6 & WIN32 */
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#ifdef INET6
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struct h6namemem {
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struct in6_addr addr;
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char *name;
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struct h6namemem *nxt;
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};
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static struct h6namemem h6nametable[HASHNAMESIZE];
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#endif /* INET6 */
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struct enamemem {
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u_short e_addr0;
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u_short e_addr1;
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u_short e_addr2;
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const char *e_name;
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u_char *e_nsap; /* used only for nsaptable[] */
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#define e_bs e_nsap /* for bytestringtable */
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struct enamemem *e_nxt;
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};
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static struct enamemem enametable[HASHNAMESIZE];
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static struct enamemem nsaptable[HASHNAMESIZE];
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static struct enamemem bytestringtable[HASHNAMESIZE];
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struct protoidmem {
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uint32_t p_oui;
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u_short p_proto;
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const char *p_name;
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struct protoidmem *p_nxt;
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};
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static struct protoidmem protoidtable[HASHNAMESIZE];
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/*
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* A faster replacement for inet_ntoa().
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*/
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const char *
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intoa(uint32_t addr)
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{
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register char *cp;
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register u_int byte;
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register int n;
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static char buf[sizeof(".xxx.xxx.xxx.xxx")];
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NTOHL(addr);
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cp = buf + sizeof(buf);
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*--cp = '\0';
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n = 4;
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do {
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byte = addr & 0xff;
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*--cp = byte % 10 + '0';
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byte /= 10;
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if (byte > 0) {
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*--cp = byte % 10 + '0';
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byte /= 10;
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if (byte > 0)
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*--cp = byte + '0';
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}
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*--cp = '.';
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addr >>= 8;
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} while (--n > 0);
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return cp + 1;
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}
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static uint32_t f_netmask;
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static uint32_t f_localnet;
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#ifdef HAVE_CAPSICUM
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extern cap_channel_t *capdns;
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#endif
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/*
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* Return a name for the IP address pointed to by ap. This address
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* is assumed to be in network byte order.
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*
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* NOTE: ap is *NOT* necessarily part of the packet data (not even if
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* this is being called with the "ipaddr_string()" macro), so you
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* *CANNOT* use the TCHECK{2}/TTEST{2} macros on it. Furthermore,
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* even in cases where it *is* part of the packet data, the caller
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* would still have to check for a null return value, even if it's
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* just printing the return value with "%s" - not all versions of
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* printf print "(null)" with "%s" and a null pointer, some of them
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* don't check for a null pointer and crash in that case.
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*
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* The callers of this routine should, before handing this routine
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* a pointer to packet data, be sure that the data is present in
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* the packet buffer. They should probably do those checks anyway,
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* as other data at that layer might not be IP addresses, and it
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* also needs to check whether they're present in the packet buffer.
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*/
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const char *
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getname(netdissect_options *ndo, const u_char *ap)
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{
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register struct hostent *hp;
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uint32_t addr;
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static struct hnamemem *p; /* static for longjmp() */
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memcpy(&addr, ap, sizeof(addr));
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p = &hnametable[addr & (HASHNAMESIZE-1)];
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for (; p->nxt; p = p->nxt) {
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if (p->addr == addr)
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return (p->name);
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}
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p->addr = addr;
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p->nxt = newhnamemem();
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/*
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* Print names unless:
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* (1) -n was given.
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* (2) Address is foreign and -f was given. (If -f was not
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* given, f_netmask and f_localnet are 0 and the test
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* evaluates to true)
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*/
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if (!ndo->ndo_nflag &&
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(addr & f_netmask) == f_localnet) {
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#ifdef HAVE_CAPSICUM
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if (capdns != NULL) {
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hp = cap_gethostbyaddr(capdns, (char *)&addr, 4,
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AF_INET);
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} else
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#endif
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hp = gethostbyaddr((char *)&addr, 4, AF_INET);
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if (hp) {
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char *dotp;
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p->name = strdup(hp->h_name);
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if (ndo->ndo_Nflag) {
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/* Remove domain qualifications */
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dotp = strchr(p->name, '.');
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if (dotp)
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*dotp = '\0';
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}
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return (p->name);
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}
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}
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p->name = strdup(intoa(addr));
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return (p->name);
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}
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#ifdef INET6
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/*
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* Return a name for the IP6 address pointed to by ap. This address
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* is assumed to be in network byte order.
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*/
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const char *
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getname6(netdissect_options *ndo, const u_char *ap)
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{
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register struct hostent *hp;
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union {
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struct in6_addr addr;
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struct for_hash_addr {
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char fill[14];
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uint16_t d;
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} addra;
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} addr;
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static struct h6namemem *p; /* static for longjmp() */
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register const char *cp;
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char ntop_buf[INET6_ADDRSTRLEN];
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memcpy(&addr, ap, sizeof(addr));
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p = &h6nametable[addr.addra.d & (HASHNAMESIZE-1)];
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for (; p->nxt; p = p->nxt) {
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if (memcmp(&p->addr, &addr, sizeof(addr)) == 0)
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return (p->name);
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}
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p->addr = addr.addr;
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p->nxt = newh6namemem();
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/*
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* Do not print names if -n was given.
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*/
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if (!ndo->ndo_nflag) {
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#ifdef HAVE_CAPSICUM
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if (capdns != NULL) {
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hp = cap_gethostbyaddr(capdns, (char *)&addr,
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sizeof(addr), AF_INET6);
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} else
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#endif
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hp = gethostbyaddr((char *)&addr, sizeof(addr), AF_INET6);
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if (hp) {
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char *dotp;
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p->name = strdup(hp->h_name);
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if (ndo->ndo_Nflag) {
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/* Remove domain qualifications */
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dotp = strchr(p->name, '.');
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if (dotp)
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*dotp = '\0';
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}
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return (p->name);
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}
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}
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cp = inet_ntop(AF_INET6, &addr, ntop_buf, sizeof(ntop_buf));
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p->name = strdup(cp);
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return (p->name);
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}
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#endif /* INET6 */
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static const char hex[] = "0123456789abcdef";
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/* Find the hash node that corresponds the ether address 'ep' */
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static inline struct enamemem *
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lookup_emem(const u_char *ep)
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{
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register u_int i, j, k;
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struct enamemem *tp;
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k = (ep[0] << 8) | ep[1];
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j = (ep[2] << 8) | ep[3];
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i = (ep[4] << 8) | ep[5];
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tp = &enametable[(i ^ j) & (HASHNAMESIZE-1)];
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while (tp->e_nxt)
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if (tp->e_addr0 == i &&
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tp->e_addr1 == j &&
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tp->e_addr2 == k)
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return tp;
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else
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tp = tp->e_nxt;
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tp->e_addr0 = i;
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tp->e_addr1 = j;
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tp->e_addr2 = k;
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tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
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if (tp->e_nxt == NULL)
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error("lookup_emem: calloc");
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return tp;
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}
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/*
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* Find the hash node that corresponds to the bytestring 'bs'
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* with length 'nlen'
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*/
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static inline struct enamemem *
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lookup_bytestring(register const u_char *bs, const unsigned int nlen)
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{
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struct enamemem *tp;
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register u_int i, j, k;
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if (nlen >= 6) {
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k = (bs[0] << 8) | bs[1];
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j = (bs[2] << 8) | bs[3];
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i = (bs[4] << 8) | bs[5];
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} else if (nlen >= 4) {
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k = (bs[0] << 8) | bs[1];
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j = (bs[2] << 8) | bs[3];
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i = 0;
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} else
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i = j = k = 0;
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tp = &bytestringtable[(i ^ j) & (HASHNAMESIZE-1)];
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while (tp->e_nxt)
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if (tp->e_addr0 == i &&
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tp->e_addr1 == j &&
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tp->e_addr2 == k &&
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memcmp((const char *)bs, (const char *)(tp->e_bs), nlen) == 0)
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return tp;
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else
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tp = tp->e_nxt;
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tp->e_addr0 = i;
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tp->e_addr1 = j;
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tp->e_addr2 = k;
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tp->e_bs = (u_char *) calloc(1, nlen + 1);
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if (tp->e_bs == NULL)
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error("lookup_bytestring: calloc");
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memcpy(tp->e_bs, bs, nlen);
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tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
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if (tp->e_nxt == NULL)
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error("lookup_bytestring: calloc");
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return tp;
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}
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/* Find the hash node that corresponds the NSAP 'nsap' */
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static inline struct enamemem *
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lookup_nsap(register const u_char *nsap)
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{
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register u_int i, j, k;
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unsigned int nlen = *nsap;
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struct enamemem *tp;
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const u_char *ensap = nsap + nlen - 6;
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if (nlen > 6) {
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k = (ensap[0] << 8) | ensap[1];
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j = (ensap[2] << 8) | ensap[3];
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i = (ensap[4] << 8) | ensap[5];
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}
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else
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i = j = k = 0;
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tp = &nsaptable[(i ^ j) & (HASHNAMESIZE-1)];
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while (tp->e_nxt)
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if (tp->e_addr0 == i &&
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tp->e_addr1 == j &&
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tp->e_addr2 == k &&
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tp->e_nsap[0] == nlen &&
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memcmp((const char *)&(nsap[1]),
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(char *)&(tp->e_nsap[1]), nlen) == 0)
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return tp;
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else
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tp = tp->e_nxt;
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tp->e_addr0 = i;
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tp->e_addr1 = j;
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tp->e_addr2 = k;
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tp->e_nsap = (u_char *)malloc(nlen + 1);
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if (tp->e_nsap == NULL)
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error("lookup_nsap: malloc");
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memcpy((char *)tp->e_nsap, (const char *)nsap, nlen + 1);
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tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
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if (tp->e_nxt == NULL)
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error("lookup_nsap: calloc");
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return tp;
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}
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|
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/* Find the hash node that corresponds the protoid 'pi'. */
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|
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static inline struct protoidmem *
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lookup_protoid(const u_char *pi)
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{
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register u_int i, j;
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struct protoidmem *tp;
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|
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/* 5 octets won't be aligned */
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i = (((pi[0] << 8) + pi[1]) << 8) + pi[2];
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j = (pi[3] << 8) + pi[4];
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/* XXX should be endian-insensitive, but do big-endian testing XXX */
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tp = &protoidtable[(i ^ j) & (HASHNAMESIZE-1)];
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while (tp->p_nxt)
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if (tp->p_oui == i && tp->p_proto == j)
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return tp;
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else
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tp = tp->p_nxt;
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tp->p_oui = i;
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tp->p_proto = j;
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tp->p_nxt = (struct protoidmem *)calloc(1, sizeof(*tp));
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if (tp->p_nxt == NULL)
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error("lookup_protoid: calloc");
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|
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return tp;
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}
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|
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const char *
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etheraddr_string(netdissect_options *ndo, register const u_char *ep)
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{
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register int i;
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register char *cp;
|
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register struct enamemem *tp;
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int oui;
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char buf[BUFSIZE];
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|
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tp = lookup_emem(ep);
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if (tp->e_name)
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return (tp->e_name);
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#ifdef USE_ETHER_NTOHOST
|
|
if (!ndo->ndo_nflag) {
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char buf2[BUFSIZE];
|
|
|
|
/*
|
|
* We don't cast it to "const struct ether_addr *"
|
|
* because some systems fail to declare the second
|
|
* argument as a "const" pointer, even though they
|
|
* don't modify what it points to.
|
|
*/
|
|
if (ether_ntohost(buf2, (struct ether_addr *)ep) == 0) {
|
|
tp->e_name = strdup(buf2);
|
|
return (tp->e_name);
|
|
}
|
|
}
|
|
#endif
|
|
cp = buf;
|
|
oui = EXTRACT_24BITS(ep);
|
|
*cp++ = hex[*ep >> 4 ];
|
|
*cp++ = hex[*ep++ & 0xf];
|
|
for (i = 5; --i >= 0;) {
|
|
*cp++ = ':';
|
|
*cp++ = hex[*ep >> 4 ];
|
|
*cp++ = hex[*ep++ & 0xf];
|
|
}
|
|
|
|
if (!ndo->ndo_nflag) {
|
|
snprintf(cp, BUFSIZE - (2 + 5*3), " (oui %s)",
|
|
tok2str(oui_values, "Unknown", oui));
|
|
} else
|
|
*cp = '\0';
|
|
tp->e_name = strdup(buf);
|
|
return (tp->e_name);
|
|
}
|
|
|
|
const char *
|
|
le64addr_string(const u_char *ep)
|
|
{
|
|
const unsigned int len = 8;
|
|
register u_int i;
|
|
register char *cp;
|
|
register struct enamemem *tp;
|
|
char buf[BUFSIZE];
|
|
|
|
tp = lookup_bytestring(ep, len);
|
|
if (tp->e_name)
|
|
return (tp->e_name);
|
|
|
|
cp = buf;
|
|
for (i = len; i > 0 ; --i) {
|
|
*cp++ = hex[*(ep + i - 1) >> 4];
|
|
*cp++ = hex[*(ep + i - 1) & 0xf];
|
|
*cp++ = ':';
|
|
}
|
|
cp --;
|
|
|
|
*cp = '\0';
|
|
|
|
tp->e_name = strdup(buf);
|
|
|
|
return (tp->e_name);
|
|
}
|
|
|
|
const char *
|
|
linkaddr_string(netdissect_options *ndo, const u_char *ep, const unsigned int type, const unsigned int len)
|
|
{
|
|
register u_int i;
|
|
register char *cp;
|
|
register struct enamemem *tp;
|
|
|
|
if (len == 0)
|
|
return ("<empty>");
|
|
|
|
if (type == LINKADDR_ETHER && len == ETHER_ADDR_LEN)
|
|
return (etheraddr_string(ndo, ep));
|
|
|
|
if (type == LINKADDR_FRELAY)
|
|
return (q922_string(ep));
|
|
|
|
tp = lookup_bytestring(ep, len);
|
|
if (tp->e_name)
|
|
return (tp->e_name);
|
|
|
|
tp->e_name = cp = (char *)malloc(len*3);
|
|
if (tp->e_name == NULL)
|
|
error("linkaddr_string: malloc");
|
|
*cp++ = hex[*ep >> 4];
|
|
*cp++ = hex[*ep++ & 0xf];
|
|
for (i = len-1; i > 0 ; --i) {
|
|
*cp++ = ':';
|
|
*cp++ = hex[*ep >> 4];
|
|
*cp++ = hex[*ep++ & 0xf];
|
|
}
|
|
*cp = '\0';
|
|
return (tp->e_name);
|
|
}
|
|
|
|
const char *
|
|
etherproto_string(u_short port)
|
|
{
|
|
register char *cp;
|
|
register struct hnamemem *tp;
|
|
register uint32_t i = port;
|
|
char buf[sizeof("0000")];
|
|
|
|
for (tp = &eprototable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
|
|
if (tp->addr == i)
|
|
return (tp->name);
|
|
|
|
tp->addr = i;
|
|
tp->nxt = newhnamemem();
|
|
|
|
cp = buf;
|
|
NTOHS(port);
|
|
*cp++ = hex[port >> 12 & 0xf];
|
|
*cp++ = hex[port >> 8 & 0xf];
|
|
*cp++ = hex[port >> 4 & 0xf];
|
|
*cp++ = hex[port & 0xf];
|
|
*cp++ = '\0';
|
|
tp->name = strdup(buf);
|
|
return (tp->name);
|
|
}
|
|
|
|
const char *
|
|
protoid_string(register const u_char *pi)
|
|
{
|
|
register u_int i, j;
|
|
register char *cp;
|
|
register struct protoidmem *tp;
|
|
char buf[sizeof("00:00:00:00:00")];
|
|
|
|
tp = lookup_protoid(pi);
|
|
if (tp->p_name)
|
|
return tp->p_name;
|
|
|
|
cp = buf;
|
|
if ((j = *pi >> 4) != 0)
|
|
*cp++ = hex[j];
|
|
*cp++ = hex[*pi++ & 0xf];
|
|
for (i = 4; (int)--i >= 0;) {
|
|
*cp++ = ':';
|
|
if ((j = *pi >> 4) != 0)
|
|
*cp++ = hex[j];
|
|
*cp++ = hex[*pi++ & 0xf];
|
|
}
|
|
*cp = '\0';
|
|
tp->p_name = strdup(buf);
|
|
return (tp->p_name);
|
|
}
|
|
|
|
#define ISONSAP_MAX_LENGTH 20
|
|
const char *
|
|
isonsap_string(const u_char *nsap, register u_int nsap_length)
|
|
{
|
|
register u_int nsap_idx;
|
|
register char *cp;
|
|
register struct enamemem *tp;
|
|
|
|
if (nsap_length < 1 || nsap_length > ISONSAP_MAX_LENGTH)
|
|
return ("isonsap_string: illegal length");
|
|
|
|
tp = lookup_nsap(nsap);
|
|
if (tp->e_name)
|
|
return tp->e_name;
|
|
|
|
tp->e_name = cp = (char *)malloc(sizeof("xx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xx"));
|
|
if (cp == NULL)
|
|
error("isonsap_string: malloc");
|
|
|
|
for (nsap_idx = 0; nsap_idx < nsap_length; nsap_idx++) {
|
|
*cp++ = hex[*nsap >> 4];
|
|
*cp++ = hex[*nsap++ & 0xf];
|
|
if (((nsap_idx & 1) == 0) &&
|
|
(nsap_idx + 1 < nsap_length)) {
|
|
*cp++ = '.';
|
|
}
|
|
}
|
|
*cp = '\0';
|
|
return (tp->e_name);
|
|
}
|
|
|
|
const char *
|
|
tcpport_string(u_short port)
|
|
{
|
|
register struct hnamemem *tp;
|
|
register uint32_t i = port;
|
|
char buf[sizeof("00000")];
|
|
|
|
for (tp = &tporttable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
|
|
if (tp->addr == i)
|
|
return (tp->name);
|
|
|
|
tp->addr = i;
|
|
tp->nxt = newhnamemem();
|
|
|
|
(void)snprintf(buf, sizeof(buf), "%u", i);
|
|
tp->name = strdup(buf);
|
|
return (tp->name);
|
|
}
|
|
|
|
const char *
|
|
udpport_string(register u_short port)
|
|
{
|
|
register struct hnamemem *tp;
|
|
register uint32_t i = port;
|
|
char buf[sizeof("00000")];
|
|
|
|
for (tp = &uporttable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
|
|
if (tp->addr == i)
|
|
return (tp->name);
|
|
|
|
tp->addr = i;
|
|
tp->nxt = newhnamemem();
|
|
|
|
(void)snprintf(buf, sizeof(buf), "%u", i);
|
|
tp->name = strdup(buf);
|
|
return (tp->name);
|
|
}
|
|
|
|
const char *
|
|
ipxsap_string(u_short port)
|
|
{
|
|
register char *cp;
|
|
register struct hnamemem *tp;
|
|
register uint32_t i = port;
|
|
char buf[sizeof("0000")];
|
|
|
|
for (tp = &ipxsaptable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
|
|
if (tp->addr == i)
|
|
return (tp->name);
|
|
|
|
tp->addr = i;
|
|
tp->nxt = newhnamemem();
|
|
|
|
cp = buf;
|
|
NTOHS(port);
|
|
*cp++ = hex[port >> 12 & 0xf];
|
|
*cp++ = hex[port >> 8 & 0xf];
|
|
*cp++ = hex[port >> 4 & 0xf];
|
|
*cp++ = hex[port & 0xf];
|
|
*cp++ = '\0';
|
|
tp->name = strdup(buf);
|
|
return (tp->name);
|
|
}
|
|
|
|
static void
|
|
init_servarray(netdissect_options *ndo)
|
|
{
|
|
struct servent *sv;
|
|
register struct hnamemem *table;
|
|
register int i;
|
|
char buf[sizeof("0000000000")];
|
|
|
|
while ((sv = getservent()) != NULL) {
|
|
int port = ntohs(sv->s_port);
|
|
i = port & (HASHNAMESIZE-1);
|
|
if (strcmp(sv->s_proto, "tcp") == 0)
|
|
table = &tporttable[i];
|
|
else if (strcmp(sv->s_proto, "udp") == 0)
|
|
table = &uporttable[i];
|
|
else
|
|
continue;
|
|
|
|
while (table->name)
|
|
table = table->nxt;
|
|
if (ndo->ndo_nflag) {
|
|
(void)snprintf(buf, sizeof(buf), "%d", port);
|
|
table->name = strdup(buf);
|
|
} else
|
|
table->name = strdup(sv->s_name);
|
|
table->addr = port;
|
|
table->nxt = newhnamemem();
|
|
}
|
|
endservent();
|
|
}
|
|
|
|
/* in libpcap.a (nametoaddr.c) */
|
|
#if defined(WIN32) && !defined(USE_STATIC_LIBPCAP)
|
|
extern __declspec(dllimport)
|
|
#else
|
|
extern
|
|
#endif
|
|
const struct eproto {
|
|
const char *s;
|
|
u_short p;
|
|
} eproto_db[];
|
|
|
|
static void
|
|
init_eprotoarray(void)
|
|
{
|
|
register int i;
|
|
register struct hnamemem *table;
|
|
|
|
for (i = 0; eproto_db[i].s; i++) {
|
|
int j = htons(eproto_db[i].p) & (HASHNAMESIZE-1);
|
|
table = &eprototable[j];
|
|
while (table->name)
|
|
table = table->nxt;
|
|
table->name = eproto_db[i].s;
|
|
table->addr = htons(eproto_db[i].p);
|
|
table->nxt = newhnamemem();
|
|
}
|
|
}
|
|
|
|
static const struct protoidlist {
|
|
const u_char protoid[5];
|
|
const char *name;
|
|
} protoidlist[] = {
|
|
{{ 0x00, 0x00, 0x0c, 0x01, 0x07 }, "CiscoMLS" },
|
|
{{ 0x00, 0x00, 0x0c, 0x20, 0x00 }, "CiscoCDP" },
|
|
{{ 0x00, 0x00, 0x0c, 0x20, 0x01 }, "CiscoCGMP" },
|
|
{{ 0x00, 0x00, 0x0c, 0x20, 0x03 }, "CiscoVTP" },
|
|
{{ 0x00, 0xe0, 0x2b, 0x00, 0xbb }, "ExtremeEDP" },
|
|
{{ 0x00, 0x00, 0x00, 0x00, 0x00 }, NULL }
|
|
};
|
|
|
|
/*
|
|
* SNAP proto IDs with org code 0:0:0 are actually encapsulated Ethernet
|
|
* types.
|
|
*/
|
|
static void
|
|
init_protoidarray(void)
|
|
{
|
|
register int i;
|
|
register struct protoidmem *tp;
|
|
const struct protoidlist *pl;
|
|
u_char protoid[5];
|
|
|
|
protoid[0] = 0;
|
|
protoid[1] = 0;
|
|
protoid[2] = 0;
|
|
for (i = 0; eproto_db[i].s; i++) {
|
|
u_short etype = htons(eproto_db[i].p);
|
|
|
|
memcpy((char *)&protoid[3], (char *)&etype, 2);
|
|
tp = lookup_protoid(protoid);
|
|
tp->p_name = strdup(eproto_db[i].s);
|
|
}
|
|
/* Hardwire some SNAP proto ID names */
|
|
for (pl = protoidlist; pl->name != NULL; ++pl) {
|
|
tp = lookup_protoid(pl->protoid);
|
|
/* Don't override existing name */
|
|
if (tp->p_name != NULL)
|
|
continue;
|
|
|
|
tp->p_name = pl->name;
|
|
}
|
|
}
|
|
|
|
static const struct etherlist {
|
|
const u_char addr[6];
|
|
const char *name;
|
|
} etherlist[] = {
|
|
{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }, "Broadcast" },
|
|
{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, NULL }
|
|
};
|
|
|
|
/*
|
|
* Initialize the ethers hash table. We take two different approaches
|
|
* depending on whether or not the system provides the ethers name
|
|
* service. If it does, we just wire in a few names at startup,
|
|
* and etheraddr_string() fills in the table on demand. If it doesn't,
|
|
* then we suck in the entire /etc/ethers file at startup. The idea
|
|
* is that parsing the local file will be fast, but spinning through
|
|
* all the ethers entries via NIS & next_etherent might be very slow.
|
|
*
|
|
* XXX pcap_next_etherent doesn't belong in the pcap interface, but
|
|
* since the pcap module already does name-to-address translation,
|
|
* it's already does most of the work for the ethernet address-to-name
|
|
* translation, so we just pcap_next_etherent as a convenience.
|
|
*/
|
|
static void
|
|
init_etherarray(void)
|
|
{
|
|
register const struct etherlist *el;
|
|
register struct enamemem *tp;
|
|
#ifdef USE_ETHER_NTOHOST
|
|
char name[256];
|
|
#else
|
|
register struct pcap_etherent *ep;
|
|
register FILE *fp;
|
|
|
|
/* Suck in entire ethers file */
|
|
fp = fopen(PCAP_ETHERS_FILE, "r");
|
|
if (fp != NULL) {
|
|
while ((ep = pcap_next_etherent(fp)) != NULL) {
|
|
tp = lookup_emem(ep->addr);
|
|
tp->e_name = strdup(ep->name);
|
|
}
|
|
(void)fclose(fp);
|
|
}
|
|
#endif
|
|
|
|
/* Hardwire some ethernet names */
|
|
for (el = etherlist; el->name != NULL; ++el) {
|
|
tp = lookup_emem(el->addr);
|
|
/* Don't override existing name */
|
|
if (tp->e_name != NULL)
|
|
continue;
|
|
|
|
#ifdef USE_ETHER_NTOHOST
|
|
/*
|
|
* Use YP/NIS version of name if available.
|
|
*
|
|
* We don't cast it to "const struct ether_addr *"
|
|
* because some systems don't modify the Ethernet
|
|
* address but fail to declare the second argument
|
|
* as a "const" pointer.
|
|
*/
|
|
if (ether_ntohost(name, (struct ether_addr *)el->addr) == 0) {
|
|
tp->e_name = strdup(name);
|
|
continue;
|
|
}
|
|
#endif
|
|
tp->e_name = el->name;
|
|
}
|
|
}
|
|
|
|
static const struct tok ipxsap_db[] = {
|
|
{ 0x0000, "Unknown" },
|
|
{ 0x0001, "User" },
|
|
{ 0x0002, "User Group" },
|
|
{ 0x0003, "PrintQueue" },
|
|
{ 0x0004, "FileServer" },
|
|
{ 0x0005, "JobServer" },
|
|
{ 0x0006, "Gateway" },
|
|
{ 0x0007, "PrintServer" },
|
|
{ 0x0008, "ArchiveQueue" },
|
|
{ 0x0009, "ArchiveServer" },
|
|
{ 0x000a, "JobQueue" },
|
|
{ 0x000b, "Administration" },
|
|
{ 0x000F, "Novell TI-RPC" },
|
|
{ 0x0017, "Diagnostics" },
|
|
{ 0x0020, "NetBIOS" },
|
|
{ 0x0021, "NAS SNA Gateway" },
|
|
{ 0x0023, "NACS AsyncGateway" },
|
|
{ 0x0024, "RemoteBridge/RoutingService" },
|
|
{ 0x0026, "BridgeServer" },
|
|
{ 0x0027, "TCP/IP Gateway" },
|
|
{ 0x0028, "Point-to-point X.25 BridgeServer" },
|
|
{ 0x0029, "3270 Gateway" },
|
|
{ 0x002a, "CHI Corp" },
|
|
{ 0x002c, "PC Chalkboard" },
|
|
{ 0x002d, "TimeSynchServer" },
|
|
{ 0x002e, "ARCserve5.0/PalindromeBackup" },
|
|
{ 0x0045, "DI3270 Gateway" },
|
|
{ 0x0047, "AdvertisingPrintServer" },
|
|
{ 0x004a, "NetBlazerModems" },
|
|
{ 0x004b, "BtrieveVAP" },
|
|
{ 0x004c, "NetwareSQL" },
|
|
{ 0x004d, "XtreeNetwork" },
|
|
{ 0x0050, "BtrieveVAP4.11" },
|
|
{ 0x0052, "QuickLink" },
|
|
{ 0x0053, "PrintQueueUser" },
|
|
{ 0x0058, "Multipoint X.25 Router" },
|
|
{ 0x0060, "STLB/NLM" },
|
|
{ 0x0064, "ARCserve" },
|
|
{ 0x0066, "ARCserve3.0" },
|
|
{ 0x0072, "WAN CopyUtility" },
|
|
{ 0x007a, "TES-NetwareVMS" },
|
|
{ 0x0092, "WATCOM Debugger/EmeraldTapeBackupServer" },
|
|
{ 0x0095, "DDA OBGYN" },
|
|
{ 0x0098, "NetwareAccessServer" },
|
|
{ 0x009a, "Netware for VMS II/NamedPipeServer" },
|
|
{ 0x009b, "NetwareAccessServer" },
|
|
{ 0x009e, "PortableNetwareServer/SunLinkNVT" },
|
|
{ 0x00a1, "PowerchuteAPC UPS" },
|
|
{ 0x00aa, "LAWserve" },
|
|
{ 0x00ac, "CompaqIDA StatusMonitor" },
|
|
{ 0x0100, "PIPE STAIL" },
|
|
{ 0x0102, "LAN ProtectBindery" },
|
|
{ 0x0103, "OracleDataBaseServer" },
|
|
{ 0x0107, "Netware386/RSPX RemoteConsole" },
|
|
{ 0x010f, "NovellSNA Gateway" },
|
|
{ 0x0111, "TestServer" },
|
|
{ 0x0112, "HP PrintServer" },
|
|
{ 0x0114, "CSA MUX" },
|
|
{ 0x0115, "CSA LCA" },
|
|
{ 0x0116, "CSA CM" },
|
|
{ 0x0117, "CSA SMA" },
|
|
{ 0x0118, "CSA DBA" },
|
|
{ 0x0119, "CSA NMA" },
|
|
{ 0x011a, "CSA SSA" },
|
|
{ 0x011b, "CSA STATUS" },
|
|
{ 0x011e, "CSA APPC" },
|
|
{ 0x0126, "SNA TEST SSA Profile" },
|
|
{ 0x012a, "CSA TRACE" },
|
|
{ 0x012b, "NetwareSAA" },
|
|
{ 0x012e, "IKARUS VirusScan" },
|
|
{ 0x0130, "CommunicationsExecutive" },
|
|
{ 0x0133, "NNS DomainServer/NetwareNamingServicesDomain" },
|
|
{ 0x0135, "NetwareNamingServicesProfile" },
|
|
{ 0x0137, "Netware386 PrintQueue/NNS PrintQueue" },
|
|
{ 0x0141, "LAN SpoolServer" },
|
|
{ 0x0152, "IRMALAN Gateway" },
|
|
{ 0x0154, "NamedPipeServer" },
|
|
{ 0x0166, "NetWareManagement" },
|
|
{ 0x0168, "Intel PICKIT CommServer/Intel CAS TalkServer" },
|
|
{ 0x0173, "Compaq" },
|
|
{ 0x0174, "Compaq SNMP Agent" },
|
|
{ 0x0175, "Compaq" },
|
|
{ 0x0180, "XTreeServer/XTreeTools" },
|
|
{ 0x018A, "NASI ServicesBroadcastServer" },
|
|
{ 0x01b0, "GARP Gateway" },
|
|
{ 0x01b1, "Binfview" },
|
|
{ 0x01bf, "IntelLanDeskManager" },
|
|
{ 0x01ca, "AXTEC" },
|
|
{ 0x01cb, "ShivaNetModem/E" },
|
|
{ 0x01cc, "ShivaLanRover/E" },
|
|
{ 0x01cd, "ShivaLanRover/T" },
|
|
{ 0x01ce, "ShivaUniversal" },
|
|
{ 0x01d8, "CastelleFAXPressServer" },
|
|
{ 0x01da, "CastelleLANPressPrintServer" },
|
|
{ 0x01dc, "CastelleFAX/Xerox7033 FaxServer/ExcelLanFax" },
|
|
{ 0x01f0, "LEGATO" },
|
|
{ 0x01f5, "LEGATO" },
|
|
{ 0x0233, "NMS Agent/NetwareManagementAgent" },
|
|
{ 0x0237, "NMS IPX Discovery/LANternReadWriteChannel" },
|
|
{ 0x0238, "NMS IP Discovery/LANternTrapAlarmChannel" },
|
|
{ 0x023a, "LANtern" },
|
|
{ 0x023c, "MAVERICK" },
|
|
{ 0x023f, "NovellSMDR" },
|
|
{ 0x024e, "NetwareConnect" },
|
|
{ 0x024f, "NASI ServerBroadcast Cisco" },
|
|
{ 0x026a, "NMS ServiceConsole" },
|
|
{ 0x026b, "TimeSynchronizationServer Netware 4.x" },
|
|
{ 0x0278, "DirectoryServer Netware 4.x" },
|
|
{ 0x027b, "NetwareManagementAgent" },
|
|
{ 0x0280, "Novell File and Printer Sharing Service for PC" },
|
|
{ 0x0304, "NovellSAA Gateway" },
|
|
{ 0x0308, "COM/VERMED" },
|
|
{ 0x030a, "GalacticommWorldgroupServer" },
|
|
{ 0x030c, "IntelNetport2/HP JetDirect/HP Quicksilver" },
|
|
{ 0x0320, "AttachmateGateway" },
|
|
{ 0x0327, "MicrosoftDiagnostiocs" },
|
|
{ 0x0328, "WATCOM SQL Server" },
|
|
{ 0x0335, "MultiTechSystems MultisynchCommServer" },
|
|
{ 0x0343, "Xylogics RemoteAccessServer/LANModem" },
|
|
{ 0x0355, "ArcadaBackupExec" },
|
|
{ 0x0358, "MSLCD1" },
|
|
{ 0x0361, "NETINELO" },
|
|
{ 0x037e, "Powerchute UPS Monitoring" },
|
|
{ 0x037f, "ViruSafeNotify" },
|
|
{ 0x0386, "HP Bridge" },
|
|
{ 0x0387, "HP Hub" },
|
|
{ 0x0394, "NetWare SAA Gateway" },
|
|
{ 0x039b, "LotusNotes" },
|
|
{ 0x03b7, "CertusAntiVirus" },
|
|
{ 0x03c4, "ARCserve4.0" },
|
|
{ 0x03c7, "LANspool3.5" },
|
|
{ 0x03d7, "LexmarkPrinterServer" },
|
|
{ 0x03d8, "LexmarkXLE PrinterServer" },
|
|
{ 0x03dd, "BanyanENS NetwareClient" },
|
|
{ 0x03de, "GuptaSequelBaseServer/NetWareSQL" },
|
|
{ 0x03e1, "UnivelUnixware" },
|
|
{ 0x03e4, "UnivelUnixware" },
|
|
{ 0x03fc, "IntelNetport" },
|
|
{ 0x03fd, "PrintServerQueue" },
|
|
{ 0x040A, "ipnServer" },
|
|
{ 0x040D, "LVERRMAN" },
|
|
{ 0x040E, "LVLIC" },
|
|
{ 0x0414, "NET Silicon (DPI)/Kyocera" },
|
|
{ 0x0429, "SiteLockVirus" },
|
|
{ 0x0432, "UFHELPR???" },
|
|
{ 0x0433, "Synoptics281xAdvancedSNMPAgent" },
|
|
{ 0x0444, "MicrosoftNT SNA Server" },
|
|
{ 0x0448, "Oracle" },
|
|
{ 0x044c, "ARCserve5.01" },
|
|
{ 0x0457, "CanonGP55" },
|
|
{ 0x045a, "QMS Printers" },
|
|
{ 0x045b, "DellSCSI Array" },
|
|
{ 0x0491, "NetBlazerModems" },
|
|
{ 0x04ac, "OnTimeScheduler" },
|
|
{ 0x04b0, "CD-Net" },
|
|
{ 0x0513, "EmulexNQA" },
|
|
{ 0x0520, "SiteLockChecks" },
|
|
{ 0x0529, "SiteLockChecks" },
|
|
{ 0x052d, "CitrixOS2 AppServer" },
|
|
{ 0x0535, "Tektronix" },
|
|
{ 0x0536, "Milan" },
|
|
{ 0x055d, "Attachmate SNA gateway" },
|
|
{ 0x056b, "IBM8235 ModemServer" },
|
|
{ 0x056c, "ShivaLanRover/E PLUS" },
|
|
{ 0x056d, "ShivaLanRover/T PLUS" },
|
|
{ 0x0580, "McAfeeNetShield" },
|
|
{ 0x05B8, "NLM to workstation communication (Revelation Software)" },
|
|
{ 0x05BA, "CompatibleSystemsRouters" },
|
|
{ 0x05BE, "CheyenneHierarchicalStorageManager" },
|
|
{ 0x0606, "JCWatermarkImaging" },
|
|
{ 0x060c, "AXISNetworkPrinter" },
|
|
{ 0x0610, "AdaptecSCSIManagement" },
|
|
{ 0x0621, "IBM AntiVirus" },
|
|
{ 0x0640, "Windows95 RemoteRegistryService" },
|
|
{ 0x064e, "MicrosoftIIS" },
|
|
{ 0x067b, "Microsoft Win95/98 File and Print Sharing for NetWare" },
|
|
{ 0x067c, "Microsoft Win95/98 File and Print Sharing for NetWare" },
|
|
{ 0x076C, "Xerox" },
|
|
{ 0x079b, "ShivaLanRover/E 115" },
|
|
{ 0x079c, "ShivaLanRover/T 115" },
|
|
{ 0x07B4, "CubixWorldDesk" },
|
|
{ 0x07c2, "Quarterdeck IWare Connect V2.x NLM" },
|
|
{ 0x07c1, "Quarterdeck IWare Connect V3.x NLM" },
|
|
{ 0x0810, "ELAN License Server Demo" },
|
|
{ 0x0824, "ShivaLanRoverAccessSwitch/E" },
|
|
{ 0x086a, "ISSC Collector" },
|
|
{ 0x087f, "ISSC DAS AgentAIX" },
|
|
{ 0x0880, "Intel Netport PRO" },
|
|
{ 0x0881, "Intel Netport PRO" },
|
|
{ 0x0b29, "SiteLock" },
|
|
{ 0x0c29, "SiteLockApplications" },
|
|
{ 0x0c2c, "LicensingServer" },
|
|
{ 0x2101, "PerformanceTechnologyInstantInternet" },
|
|
{ 0x2380, "LAI SiteLock" },
|
|
{ 0x238c, "MeetingMaker" },
|
|
{ 0x4808, "SiteLockServer/SiteLockMetering" },
|
|
{ 0x5555, "SiteLockUser" },
|
|
{ 0x6312, "Tapeware" },
|
|
{ 0x6f00, "RabbitGateway" },
|
|
{ 0x7703, "MODEM" },
|
|
{ 0x8002, "NetPortPrinters" },
|
|
{ 0x8008, "WordPerfectNetworkVersion" },
|
|
{ 0x85BE, "Cisco EIGRP" },
|
|
{ 0x8888, "WordPerfectNetworkVersion/QuickNetworkManagement" },
|
|
{ 0x9000, "McAfeeNetShield" },
|
|
{ 0x9604, "CSA-NT_MON" },
|
|
{ 0xb6a8, "OceanIsleReachoutRemoteControl" },
|
|
{ 0xf11f, "SiteLockMetering" },
|
|
{ 0xf1ff, "SiteLock" },
|
|
{ 0xf503, "Microsoft SQL Server" },
|
|
{ 0xF905, "IBM TimeAndPlace" },
|
|
{ 0xfbfb, "TopCallIII FaxServer" },
|
|
{ 0xffff, "AnyService/Wildcard" },
|
|
{ 0, (char *)0 }
|
|
};
|
|
|
|
static void
|
|
init_ipxsaparray(void)
|
|
{
|
|
register int i;
|
|
register struct hnamemem *table;
|
|
|
|
for (i = 0; ipxsap_db[i].s != NULL; i++) {
|
|
int j = htons(ipxsap_db[i].v) & (HASHNAMESIZE-1);
|
|
table = &ipxsaptable[j];
|
|
while (table->name)
|
|
table = table->nxt;
|
|
table->name = ipxsap_db[i].s;
|
|
table->addr = htons(ipxsap_db[i].v);
|
|
table->nxt = newhnamemem();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize the address to name translation machinery. We map all
|
|
* non-local IP addresses to numeric addresses if ndo->ndo_fflag is true
|
|
* (i.e., to prevent blocking on the nameserver). localnet is the IP address
|
|
* of the local network. mask is its subnet mask.
|
|
*/
|
|
void
|
|
init_addrtoname(netdissect_options *ndo, uint32_t localnet, uint32_t mask)
|
|
{
|
|
if (ndo->ndo_fflag) {
|
|
f_localnet = localnet;
|
|
f_netmask = mask;
|
|
}
|
|
if (ndo->ndo_nflag)
|
|
/*
|
|
* Simplest way to suppress names.
|
|
*/
|
|
return;
|
|
|
|
init_etherarray();
|
|
init_servarray(ndo);
|
|
init_eprotoarray();
|
|
init_protoidarray();
|
|
init_ipxsaparray();
|
|
}
|
|
|
|
const char *
|
|
dnaddr_string(netdissect_options *ndo, u_short dnaddr)
|
|
{
|
|
register struct hnamemem *tp;
|
|
|
|
for (tp = &dnaddrtable[dnaddr & (HASHNAMESIZE-1)]; tp->nxt != 0;
|
|
tp = tp->nxt)
|
|
if (tp->addr == dnaddr)
|
|
return (tp->name);
|
|
|
|
tp->addr = dnaddr;
|
|
tp->nxt = newhnamemem();
|
|
if (ndo->ndo_nflag)
|
|
tp->name = dnnum_string(dnaddr);
|
|
else
|
|
tp->name = dnname_string(dnaddr);
|
|
|
|
return(tp->name);
|
|
}
|
|
|
|
/* Return a zero'ed hnamemem struct and cuts down on calloc() overhead */
|
|
struct hnamemem *
|
|
newhnamemem(void)
|
|
{
|
|
register struct hnamemem *p;
|
|
static struct hnamemem *ptr = NULL;
|
|
static u_int num = 0;
|
|
|
|
if (num <= 0) {
|
|
num = 64;
|
|
ptr = (struct hnamemem *)calloc(num, sizeof (*ptr));
|
|
if (ptr == NULL)
|
|
error("newhnamemem: calloc");
|
|
}
|
|
--num;
|
|
p = ptr++;
|
|
return (p);
|
|
}
|
|
|
|
#ifdef INET6
|
|
/* Return a zero'ed h6namemem struct and cuts down on calloc() overhead */
|
|
struct h6namemem *
|
|
newh6namemem(void)
|
|
{
|
|
register struct h6namemem *p;
|
|
static struct h6namemem *ptr = NULL;
|
|
static u_int num = 0;
|
|
|
|
if (num <= 0) {
|
|
num = 64;
|
|
ptr = (struct h6namemem *)calloc(num, sizeof (*ptr));
|
|
if (ptr == NULL)
|
|
error("newh6namemem: calloc");
|
|
}
|
|
--num;
|
|
p = ptr++;
|
|
return (p);
|
|
}
|
|
#endif /* INET6 */
|