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_MAC48,
  41     LINKADDR_FRELAY,
  42     LINKADDR_EUI64,
  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 *mac48_string(netdissect_options *, const uint8_t *);
  51 extern const char *eui64_string(netdissect_options *, const uint8_t *);
  52 extern const char *eui64le_string(netdissect_options *, const uint8_t *);
  53 extern const char *tcpport_string(netdissect_options *, u_short);
  54 extern const char *udpport_string(netdissect_options *, u_short);
  55 extern const char *isonsap_string(netdissect_options *, const uint8_t *, u_int);
  56 extern const char *dnaddr_string(netdissect_options *, u_short);
  57 extern const char *ipxsap_string(netdissect_options *, u_short);
  58 extern const char *ipaddr_string(netdissect_options *, const u_char *);
  59 extern const char *ip6addr_string(netdissect_options *, const u_char *);
  60 extern const char *intoa(uint32_t);
  61
  62 extern void init_addrtoname(netdissect_options *, uint32_t, uint32_t);
  63 extern struct hnamemem *newhnamemem(netdissect_options *);
  64 extern struct h6namemem *newh6namemem(netdissect_options *);
  65 extern const char * ieee8021q_tci_string(const uint16_t);
  66
  67 /* macro(s) and inline function(s) with setjmp/longjmp logic to call
  68  * the X_string() function(s) after bounds checking.
  69  * The macro(s) must be used on a packet buffer pointer.
  70  */
  71
  72 static inline const char *
  73 get_linkaddr_string(netdissect_options *ndo, const uint8_t *p,
  74     const unsigned int type, const unsigned int len)
  75 {
  76         if (!ND_TTEST_LEN(p, len))
  77                 nd_trunc_longjmp(ndo);
  78         return linkaddr_string(ndo, p, type, len);
  79 }
  80
  81 static inline const char *
  82 get_mac48_string(netdissect_options *ndo, const uint8_t *p)
  83 {
  84         if (!ND_TTEST_LEN(p, MAC48_LEN))
  85                 nd_trunc_longjmp(ndo);
  86         return mac48_string(ndo, p);
  87 }
  88
  89 static inline const char *
  90 get_eui64_string(netdissect_options *ndo, const uint8_t *p)
  91 {
  92         if (!ND_TTEST_LEN(p, EUI64_LEN))
  93                 nd_trunc_longjmp(ndo);
  94         return eui64_string(ndo, p);
  95 }
  96
  97 static inline const char *
  98 get_eui64le_string(netdissect_options *ndo, const uint8_t *p)
  99 {
 100         if (!ND_TTEST_LEN(p, EUI64_LEN))
 101                 nd_trunc_longjmp(ndo);
 102         return eui64le_string(ndo, p);
 103 }
 104
 105 static inline const char *
 106 get_isonsap_string(netdissect_options *ndo, const uint8_t *nsap,
 107     u_int nsap_length)
 108 {
 109         if (!ND_TTEST_LEN(nsap, nsap_length))
 110                 nd_trunc_longjmp(ndo);
 111         return isonsap_string(ndo, nsap, nsap_length);
 112 }
 113
 114 static inline const char *
 115 get_ipaddr_string(netdissect_options *ndo, const u_char *p)
 116 {
 117         if (!ND_TTEST_4(p))
 118                 nd_trunc_longjmp(ndo);
 119         return ipaddr_string(ndo, p);
 120 }
 121
 122 static inline const char *
 123 get_ip6addr_string(netdissect_options *ndo, const u_char *p)
 124 {
 125         if (!ND_TTEST_16(p))
 126                 nd_trunc_longjmp(ndo);
 127         return ip6addr_string(ndo, p);
 128 }
 129
 130 #define GET_LINKADDR_STRING(p, type, len) get_linkaddr_string(ndo, (const u_char *)(p), type, len)
 131 #define GET_MAC48_STRING(p) get_mac48_string(ndo, (const u_char *)(p))
 132 #define GET_EUI64_STRING(p) get_eui64_string(ndo, (const u_char *)(p))
 133 #define GET_EUI64LE_STRING(p) get_eui64le_string(ndo, (const u_char *)(p))
 134 #define GET_ISONSAP_STRING(nsap, nsap_length) get_isonsap_string(ndo, (const u_char *)(nsap), nsap_length)
 135 #define GET_IPADDR_STRING(p) get_ipaddr_string(ndo, (const u_char *)(p))
 136 #define GET_IP6ADDR_STRING(p) get_ip6addr_string(ndo, (const u_char *)(p))