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 /*
  25  * Definition to let us compile most of the IPv6 code even on systems
  26  * without IPv6 support.
  27  */
  28 #ifndef INET6_ADDRSTRLEN
  29 #define INET6_ADDRSTRLEN        46
  30 #endif
  31
  32 /* Name to address translation routines. */
  33
  34 enum {
  35     LINKADDR_ETHER,
  36     LINKADDR_FRELAY,
  37     LINKADDR_IEEE1394,
  38     LINKADDR_ATM,
  39     LINKADDR_OTHER
  40 };
  41
  42 #define BUFSIZE 128
  43
  44 extern const char *linkaddr_string(netdissect_options *, const uint8_t *, const unsigned int, const unsigned int);
  45 extern const char *etheraddr_string(netdissect_options *, const uint8_t *);
  46 extern const char *le64addr_string(netdissect_options *, const uint8_t *);
  47 extern const char *tcpport_string(netdissect_options *, u_short);
  48 extern const char *udpport_string(netdissect_options *, u_short);
  49 extern const char *isonsap_string(netdissect_options *, const uint8_t *, u_int);
  50 extern const char *dnaddr_string(netdissect_options *, u_short);
  51 extern const char *ipxsap_string(netdissect_options *, u_short);
  52 extern const char *ipaddr_string(netdissect_options *, const u_char *);
  53 extern const char *ip6addr_string(netdissect_options *, const u_char *);
  54 extern const char *intoa(uint32_t);
  55
  56 extern void init_addrtoname(netdissect_options *, uint32_t, uint32_t);
  57 extern struct hnamemem *newhnamemem(netdissect_options *);
  58 extern struct h6namemem *newh6namemem(netdissect_options *);
  59 extern const char * ieee8021q_tci_string(const uint16_t);
  60
  61 /* macro(s) and inline function(s) with setjmp/longjmp logic to call
  62  * the X_string() function(s) after bounds checking.
  63  * The macro(s) must be used on a packet buffer pointer.
  64  */
  65
  66 static inline const char *
  67 get_linkaddr_string(netdissect_options *ndo, const uint8_t *p,
  68     const unsigned int type, const unsigned int len)
  69 {
  70         if (!ND_TTEST_LEN(p, len))
  71                 longjmp(ndo->ndo_truncated, 1);
  72         return linkaddr_string(ndo, p, type, len);
  73 }
  74
  75 static inline const char *
  76 get_etheraddr_string(netdissect_options *ndo, const uint8_t *p)
  77 {
  78         if (!ND_TTEST_LEN(p, MAC_ADDR_LEN))
  79                 longjmp(ndo->ndo_truncated, 1);
  80         return etheraddr_string(ndo, p);
  81 }
  82
  83 static inline const char *
  84 get_le64addr_string(netdissect_options *ndo, const u_char *p)
  85 {
  86         if (!ND_TTEST_8(p))
  87                 longjmp(ndo->ndo_truncated, 1);
  88         return le64addr_string(ndo, p);
  89 }
  90
  91 static inline const char *
  92 get_isonsap_string(netdissect_options *ndo, const uint8_t *nsap,
  93     u_int nsap_length)
  94 {
  95         if (!ND_TTEST_LEN(nsap, nsap_length))
  96                 longjmp(ndo->ndo_truncated, 1);
  97         return isonsap_string(ndo, nsap, nsap_length);
  98 }
  99
 100 static inline const char *
 101 get_ipaddr_string(netdissect_options *ndo, const u_char *p)
 102 {
 103         if (!ND_TTEST_4(p))
 104                 longjmp(ndo->ndo_truncated, 1);
 105         return ipaddr_string(ndo, p);
 106 }
 107
 108 static inline const char *
 109 get_ip6addr_string(netdissect_options *ndo, const u_char *p)
 110 {
 111         if (!ND_TTEST_16(p))
 112                 longjmp(ndo->ndo_truncated, 1);
 113         return ip6addr_string(ndo, p);
 114 }
 115
 116 #define GET_LINKADDR_STRING(p, type, len) get_linkaddr_string(ndo, (const u_char *)(p), type, len)
 117 #define GET_ETHERADDR_STRING(p) get_etheraddr_string(ndo, (const u_char *)(p))
 118 #define GET_LE64ADDR_STRING(p) get_le64addr_string(ndo, (const u_char *)(p))
 119 #define GET_ISONSAP_STRING(nsap, nsap_length) get_isonsap_string(ndo, (const u_char *)(nsap), nsap_length)
 120 #define GET_IPADDR_STRING(p) get_ipaddr_string(ndo, (const u_char *)(p))
 121 #define GET_IP6ADDR_STRING(p) get_ip6addr_string(ndo, (const u_char *)(p))