1/*
2 * Copyright (c) 1990, 1992, 1993, 1994, 1995, 1996, 1997
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 */
21
22#include "extract.h"
23
24#ifdef HAVE_CASPER
25#include <libcasper.h>
26extern cap_channel_t *capdns;
27#endif
28
29/*
30 * Definition to let us compile most of the IPv6 code even on systems
31 * without IPv6 support.
32 */
33#ifndef INET6_ADDRSTRLEN
34#define INET6_ADDRSTRLEN	46
35#endif
36
37/* Name to address translation routines. */
38
39enum {
40    LINKADDR_ETHER,
41    LINKADDR_FRELAY,
42    LINKADDR_IEEE1394,
43    LINKADDR_ATM,
44    LINKADDR_OTHER
45};
46
47#define BUFSIZE 128
48
49extern const char *linkaddr_string(netdissect_options *, const uint8_t *, const unsigned int, const unsigned int);
50extern const char *etheraddr_string(netdissect_options *, const uint8_t *);
51extern const char *le64addr_string(netdissect_options *, const uint8_t *);
52extern const char *tcpport_string(netdissect_options *, u_short);
53extern const char *udpport_string(netdissect_options *, u_short);
54extern const char *isonsap_string(netdissect_options *, const uint8_t *, u_int);
55extern const char *dnaddr_string(netdissect_options *, u_short);
56extern const char *ipxsap_string(netdissect_options *, u_short);
57extern const char *ipaddr_string(netdissect_options *, const u_char *);
58extern const char *ip6addr_string(netdissect_options *, const u_char *);
59extern const char *intoa(uint32_t);
60
61extern void init_addrtoname(netdissect_options *, uint32_t, uint32_t);
62extern struct hnamemem *newhnamemem(netdissect_options *);
63extern struct h6namemem *newh6namemem(netdissect_options *);
64extern const char * ieee8021q_tci_string(const uint16_t);
65
66/* macro(s) and inline function(s) with setjmp/longjmp logic to call
67 * the X_string() function(s) after bounds checking.
68 * The macro(s) must be used on a packet buffer pointer.
69 */
70
71static inline const char *
72get_linkaddr_string(netdissect_options *ndo, const uint8_t *p,
73    const unsigned int type, const unsigned int len)
74{
75        if (!ND_TTEST_LEN(p, len))
76                nd_trunc_longjmp(ndo);
77        return linkaddr_string(ndo, p, type, len);
78}
79
80static inline const char *
81get_etheraddr_string(netdissect_options *ndo, const uint8_t *p)
82{
83        if (!ND_TTEST_LEN(p, MAC_ADDR_LEN))
84                nd_trunc_longjmp(ndo);
85        return etheraddr_string(ndo, p);
86}
87
88static inline const char *
89get_le64addr_string(netdissect_options *ndo, const u_char *p)
90{
91        if (!ND_TTEST_8(p))
92                nd_trunc_longjmp(ndo);
93        return le64addr_string(ndo, p);
94}
95
96static inline const char *
97get_isonsap_string(netdissect_options *ndo, const uint8_t *nsap,
98    u_int nsap_length)
99{
100	if (!ND_TTEST_LEN(nsap, nsap_length))
101                nd_trunc_longjmp(ndo);
102        return isonsap_string(ndo, nsap, nsap_length);
103}
104
105static inline const char *
106get_ipaddr_string(netdissect_options *ndo, const u_char *p)
107{
108        if (!ND_TTEST_4(p))
109                nd_trunc_longjmp(ndo);
110        return ipaddr_string(ndo, p);
111}
112
113static inline const char *
114get_ip6addr_string(netdissect_options *ndo, const u_char *p)
115{
116        if (!ND_TTEST_16(p))
117                nd_trunc_longjmp(ndo);
118        return ip6addr_string(ndo, p);
119}
120
121#define GET_LINKADDR_STRING(p, type, len) get_linkaddr_string(ndo, (const u_char *)(p), type, len)
122#define GET_ETHERADDR_STRING(p) get_etheraddr_string(ndo, (const u_char *)(p))
123#define GET_LE64ADDR_STRING(p) get_le64addr_string(ndo, (const u_char *)(p))
124#define GET_ISONSAP_STRING(nsap, nsap_length) get_isonsap_string(ndo, (const u_char *)(nsap), nsap_length)
125#define GET_IPADDR_STRING(p) get_ipaddr_string(ndo, (const u_char *)(p))
126#define GET_IP6ADDR_STRING(p) get_ip6addr_string(ndo, (const u_char *)(p))
127