The Tcpdump Group git mirrors - tcpdump/blob - addrtoname.h

   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>
  26 extern 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
  39 enum {
  40     LINKADDR_ETHER,
  41     LINKADDR_FRELAY,
  42     LINKADDR_IEEE1394,
  43     LINKADDR_ATM,
  44     LINKADDR_OTHER
  45 };
  46
  47 #define BUFSIZE 128
  48
  49 extern const char *linkaddr_string(netdissect_options *, const uint8_t *, const unsigned int, const unsigned int);
  50 extern const char *etheraddr_string(netdissect_options *, const uint8_t *);
  51 extern const char *le64addr_string(netdissect_options *, const uint8_t *);
  52 extern const char *tcpport_string(netdissect_options *, u_short);
  53 extern const char *udpport_string(netdissect_options *, u_short);
  54 extern const char *isonsap_string(netdissect_options *, const uint8_t *, u_int);
  55 extern const char *dnaddr_string(netdissect_options *, u_short);
  56 extern const char *ipxsap_string(netdissect_options *, u_short);
  57 extern const char *ipaddr_string(netdissect_options *, const u_char *);
  58 extern const char *ip6addr_string(netdissect_options *, const u_char *);
  59 extern const char *intoa(uint32_t);
  60
  61 extern void init_addrtoname(netdissect_options *, uint32_t, uint32_t);
  62 extern struct hnamemem *newhnamemem(netdissect_options *);
  63 extern struct h6namemem *newh6namemem(netdissect_options *);
  64 extern 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
  71 static inline const char *
  72 get_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
  80 static inline const char *
  81 get_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
  88 static inline const char *
  89 get_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
  96 static inline const char *
  97 get_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
 105 static inline const char *
 106 get_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
 113 static inline const char *
 114 get_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))