1 /* 2 * Copyright (c) 1988-2002 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 #ifndef tcpdump_interface_h 23 #define tcpdump_interface_h 24 25 #ifdef HAVE_OS_PROTO_H 26 #include "os-proto.h" 27 #endif 28 29 /* snprintf et al */ 30 31 #include <stdarg.h> 32 33 #if HAVE_STDINT_H 34 #include <stdint.h> 35 #endif 36 37 #if !defined(HAVE_SNPRINTF) 38 int snprintf(char *, size_t, const char *, ...) 39 #ifdef __ATTRIBUTE___FORMAT_OK 40 __attribute__((format(printf, 3, 4))) 41 #endif /* __ATTRIBUTE___FORMAT_OK */ 42 ; 43 #endif /* !defined(HAVE_SNPRINTF) */ 44 45 #if !defined(HAVE_VSNPRINTF) 46 int vsnprintf(char *, size_t, const char *, va_list) 47 #ifdef __ATTRIBUTE___FORMAT_OK 48 __attribute__((format(printf, 3, 0))) 49 #endif /* __ATTRIBUTE___FORMAT_OK */ 50 ; 51 #endif /* !defined(HAVE_VSNPRINTF) */ 52 53 #ifndef HAVE_STRLCAT 54 extern size_t strlcat(char *, const char *, size_t); 55 #endif 56 #ifndef HAVE_STRLCPY 57 extern size_t strlcpy(char *, const char *, size_t); 58 #endif 59 60 #ifndef HAVE_STRDUP 61 extern char *strdup(const char *); 62 #endif 63 64 #ifndef HAVE_STRSEP 65 extern char *strsep(char **, const char *); 66 #endif 67 68 #define PT_VAT 1 /* Visual Audio Tool */ 69 #define PT_WB 2 /* distributed White Board */ 70 #define PT_RPC 3 /* Remote Procedure Call */ 71 #define PT_RTP 4 /* Real-Time Applications protocol */ 72 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 73 #define PT_SNMP 6 /* Simple Network Management Protocol */ 74 #define PT_CNFP 7 /* Cisco NetFlow protocol */ 75 #define PT_TFTP 8 /* trivial file transfer protocol */ 76 #define PT_AODV 9 /* Ad-hoc On-demand Distance Vector Protocol */ 77 #define PT_CARP 10 /* Common Address Redundancy Protocol */ 78 #define PT_RADIUS 11 /* RADIUS authentication Protocol */ 79 #define PT_ZMTP1 12 /* ZeroMQ Message Transport Protocol 1.0 */ 80 #define PT_VXLAN 13 /* Virtual eXtensible Local Area Network */ 81 #define PT_PGM 14 /* [UDP-encapsulated] Pragmatic General Multicast */ 82 #define PT_PGM_ZMTP1 15 /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */ 83 #define PT_LMP 16 /* Link Management Protocol */ 84 85 #define ESRC(ep) ((ep)->ether_shost) 86 #define EDST(ep) ((ep)->ether_dhost) 87 88 #ifndef NTOHL 89 #define NTOHL(x) (x) = ntohl(x) 90 #define NTOHS(x) (x) = ntohs(x) 91 #define HTONL(x) (x) = htonl(x) 92 #define HTONS(x) (x) = htons(x) 93 #endif 94 #endif 95 96 extern char *program_name; /* used to generate self-identifying messages */ 97 98 extern int32_t thiszone; /* seconds offset from gmt to local time */ 99 100 /* 101 * True if "l" bytes of "var" were captured. 102 * 103 * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large 104 * that "snapend - (l)" underflows. 105 * 106 * The check is for <= rather than < because "l" might be 0. 107 * 108 * We cast the pointers to uintptr_t to make sure that the compiler 109 * doesn't optimize away any of these tests (which it is allowed to 110 * do, as adding an integer to, or subtracting an integer from, a 111 * pointer assumes that the pointer is a pointer to an element of an 112 * array and that the result of the addition or subtraction yields a 113 * pointer to another member of the array, so that, for example, if 114 * you subtract a positive integer from a pointer, the result is 115 * guaranteed to be less than the original pointer value). See 116 * 117 * http://www.kb.cert.org/vuls/id/162289 118 */ 119 #define TTEST2(var, l) \ 120 ((uintptr_t)snapend - (l) <= (uintptr_t)snapend && \ 121 (uintptr_t)&(var) <= (uintptr_t)snapend - (l)) 122 123 /* True if "var" was captured */ 124 #define TTEST(var) TTEST2(var, sizeof(var)) 125 126 /* Bail if "l" bytes of "var" were not captured */ 127 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc 128 129 /* Bail if "var" was not captured */ 130 #define TCHECK(var) TCHECK2(var, sizeof(var)) 131 132 extern int mask2plen(uint32_t); 133 extern const char *tok2strary_internal(const char **, int, const char *, int); 134 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i) 135 136 extern void error(const char *, ...) 137 __attribute__((noreturn)) 138 #ifdef __ATTRIBUTE___FORMAT_OK 139 __attribute__((format (printf, 1, 2))) 140 #endif /* __ATTRIBUTE___FORMAT_OK */ 141 ; 142 extern void warning(const char *, ...) 143 #ifdef __ATTRIBUTE___FORMAT_OK 144 __attribute__((format (printf, 1, 2))) 145 #endif /* __ATTRIBUTE___FORMAT_OK */ 146 ; 147 148 extern char *read_infile(char *); 149 extern char *copy_argv(char **); 150 151 extern const char *dnname_string(u_short); 152 extern const char *dnnum_string(u_short); 153 154 /* checksum routines */ 155 extern void init_checksum(void); 156 extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int); 157 extern uint16_t create_osi_cksum(const uint8_t *, int, int); 158 159 /* The printer routines. */ 160 161 #include <pcap.h> 162 163 extern char *smb_errstr(int, int); 164 extern const char *nt_errstr(uint32_t); 165 166 #ifdef INET6 167 extern int mask62plen(const u_char *); 168 #endif /*INET6*/ 169 170 struct cksum_vec { 171 const uint8_t *ptr; 172 int len; 173 }; 174 extern uint16_t in_cksum(const struct cksum_vec *, int); 175 extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t); 176 177 #ifndef HAVE_BPF_DUMP 178 struct bpf_program; 179 180 extern void bpf_dump(const struct bpf_program *, int); 181 182 #endif 183 184 #include "netdissect.h" 185 186 /* forward compatibility */ 187 188 #ifndef NETDISSECT_REWORKED 189 extern netdissect_options *gndo; 190 191 #define bflag gndo->ndo_bflag 192 #define eflag gndo->ndo_eflag 193 #define fflag gndo->ndo_fflag 194 #define jflag gndo->ndo_jflag 195 #define Kflag gndo->ndo_Kflag 196 #define nflag gndo->ndo_nflag 197 #define Nflag gndo->ndo_Nflag 198 #define Oflag gndo->ndo_Oflag 199 #define pflag gndo->ndo_pflag 200 #define qflag gndo->ndo_qflag 201 #define Rflag gndo->ndo_Rflag 202 #define sflag gndo->ndo_sflag 203 #define Sflag gndo->ndo_Sflag 204 #define tflag gndo->ndo_tflag 205 #define Uflag gndo->ndo_Uflag 206 #define uflag gndo->ndo_uflag 207 #define vflag gndo->ndo_vflag 208 #define xflag gndo->ndo_xflag 209 #define Xflag gndo->ndo_Xflag 210 #define Cflag gndo->ndo_Cflag 211 #define Gflag gndo->ndo_Gflag 212 #define Aflag gndo->ndo_Aflag 213 #define Bflag gndo->ndo_Bflag 214 #define Iflag gndo->ndo_Iflag 215 #define suppress_default_print gndo->ndo_suppress_default_print 216 #define packettype gndo->ndo_packettype 217 #define sigsecret gndo->ndo_sigsecret 218 #define Wflag gndo->ndo_Wflag 219 #define WflagChars gndo->ndo_WflagChars 220 #define Cflag_count gndo->ndo_Cflag_count 221 #define Gflag_count gndo->ndo_Gflag_count 222 #define Gflag_time gndo->ndo_Gflag_time 223 #define Hflag gndo->ndo_Hflag 224 #define snaplen gndo->ndo_snaplen 225 #define snapend gndo->ndo_snapend 226 227 extern void default_print(const u_char *, u_int); 228 229 #endif 230