contrib/tcpdump/ipproto.c

   1 /*
   2  * Redistribution and use in source and binary forms, with or without
   3  * modification, are permitted provided that: (1) source code
   4  * distributions retain the above copyright notice and this paragraph
   5  * in its entirety, and (2) distributions including binary code include
   6  * the above copyright notice and this paragraph in its entirety in
   7  * the documentation or other materials provided with the distribution.
   8  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
   9  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  10  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  11  * FOR A PARTICULAR PURPOSE.
  12  *
  13  * Original code by Hannes Gredler (hannes@gredler.at)
  14  */
  15
  16 #ifdef HAVE_CONFIG_H
  17 #include <config.h>
  18 #endif
  19
  20 #include "netdissect-stdinc.h"
  21
  22 #include "netdissect.h"
  23 #include "ipproto.h"
  24
  25 const struct tok ipproto_values[] = {
  26     { IPPROTO_HOPOPTS, "Options" },
  27     { IPPROTO_ICMP, "ICMP" },
  28     { IPPROTO_IGMP, "IGMP" },
  29     { IPPROTO_IPV4, "IPIP" },
  30     { IPPROTO_TCP, "TCP" },
  31     { IPPROTO_EGP, "EGP" },
  32     { IPPROTO_PIGP, "IGRP" },
  33     { IPPROTO_UDP, "UDP" },
  34     { IPPROTO_DCCP, "DCCP" },
  35     { IPPROTO_IPV6, "IPv6" },
  36     { IPPROTO_ROUTING, "Routing" },
  37     { IPPROTO_FRAGMENT, "Fragment" },
  38     { IPPROTO_RSVP, "RSVP" },
  39     { IPPROTO_GRE, "GRE" },
  40     { IPPROTO_ESP, "ESP" },
  41     { IPPROTO_AH, "AH" },
  42     { IPPROTO_MOBILE, "Mobile IP" },
  43     { IPPROTO_ICMPV6, "ICMPv6" },
  44     { IPPROTO_MOBILITY_OLD, "Mobile IP (old)" },
  45     { IPPROTO_EIGRP, "EIGRP" },
  46     { IPPROTO_OSPF, "OSPF" },
  47     { IPPROTO_PIM, "PIM" },
  48     { IPPROTO_IPCOMP, "Compressed IP" },
  49     { IPPROTO_VRRP, "VRRP" }, /* See also CARP. */
  50     { IPPROTO_PGM, "PGM" },
  51     { IPPROTO_SCTP, "SCTP" },
  52     { IPPROTO_MOBILITY, "Mobility" },
  53     { IPPROTO_ETHERNET, "Ethernet" },
  54     { 0, NULL }
  55 };
  56
  57 /*
  58  * For completeness the number space in the array below comes from IANA:
  59  * https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
  60  * However, the spelling tries to match that of /etc/protocols to achieve as
  61  * much consistency as possible with the previously implemented behaviour,
  62  * which was based on getprotobynumber (3).
  63  */
  64 static const char *netdb_protocol_names[256] = {
  65         "hopopt",            /* 0 (IPPROTO_HOPOPTS, IPv6 Hop-by-Hop Option) */
  66         "icmp",              /* 1 (IPPROTO_ICMP, Internet Control Message) */
  67         "igmp",              /* 2 (IPPROTO_IGMP, Internet Group Management) */
  68         "ggp",               /* 3 (Gateway-to-Gateway) */
  69         "ipencap",           /* 4 (IPPROTO_IPV4, IPv4 encapsulation) */
  70         "st",                /* 5 (Stream, ST datagram mode) */
  71         "tcp",               /* 6 (IPPROTO_TCP, Transmission Control) */
  72         "cbt",               /* 7 (CBT) */
  73         "egp",               /* 8 (IPPROTO_EGP, Exterior Gateway Protocol) */
  74         "igp",               /* 9 (IPPROTO_PIGP, "any private interior gateway
  75                               *   (used by Cisco for their IGRP)")
  76                               */
  77         "bbn-rcc-mon",       /* 10 (BBN RCC Monitoring) */
  78         "nvp-ii",            /* 11 (Network Voice Protocol) */
  79         "pup",               /* 12 (PARC universal packet protocol) */
  80         "argus",             /* 13 (ARGUS) */
  81         "emcon",             /* 14 (EMCON) */
  82         "xnet",              /* 15 (Cross Net Debugger) */
  83         "chaos",             /* 16 (Chaos) */
  84         "udp",               /* 17 (IPPROTO_UDP, User Datagram) */
  85         "mux",               /* 18 (Multiplexing) */
  86         "dcn-meas",          /* 19 (DCN Measurement Subsystems) */
  87         "hmp",               /* 20 (Host Monitoring) */
  88         "prm",               /* 21 (Packet Radio Measurement) */
  89         "xns-idp",           /* 22 (XEROX NS IDP) */
  90         "trunk-1",           /* 23 (Trunk-1) */
  91         "trunk-2",           /* 24 (Trunk-2) */
  92         "leaf-1",            /* 25 (Leaf-1) */
  93         "leaf-2",            /* 26 (Leaf-2) */
  94         "rdp",               /* 27 (Reliable Data Protocol) */
  95         "irtp",              /* 28 (Internet Reliable Transaction) */
  96         "iso-tp4",           /* 29 (ISO Transport Protocol Class 4) */
  97         "netblt",            /* 30 (Bulk Data Transfer Protocol) */
  98         "mfe-nsp",           /* 31 (MFE Network Services Protocol) */
  99         "merit-inp",         /* 32 (MERIT Internodal Protocol) */
 100         "dccp",              /* 33 (IPPROTO_DCCP, Datagram Congestion
 101                               *    Control Protocol)
 102                               */
 103         "3pc",               /* 34 (Third Party Connect Protocol) */
 104         "idpr",              /* 35 (Inter-Domain Policy Routing Protocol) */
 105         "xtp",               /* 36 (Xpress Transfer Protocol) */
 106         "ddp",               /* 37 (Datagram Delivery Protocol) */
 107         "idpr-cmtp",         /* 38 (IDPR Control Message Transport Proto) */
 108         "tp++",              /* 39 (TP++ Transport Protocol) */
 109         "il",                /* 40 (IL Transport Protocol) */
 110         "ipv6",              /* 41 (IPPROTO_IPV6, IPv6 encapsulation) */
 111         "sdrp",              /* 42 (Source Demand Routing Protocol) */
 112         "ipv6-route",        /* 43 (IPPROTO_ROUTING, Routing Header for IPv6) */
 113         "ipv6-frag",         /* 44 (IPPROTO_FRAGMENT, Fragment Header for
 114                               *    IPv6)
 115                               */
 116         "idrp",              /* 45 (Inter-Domain Routing Protocol) */
 117         "rsvp",              /* 46 (IPPROTO_RSVP, Reservation Protocol) */
 118         "gre",               /* 47 (IPPROTO_GRE, Generic Routing
 119                               *    Encapsulation)
 120                               */
 121         "dsr",               /* 48 (Dynamic Source Routing Protocol) */
 122         "bna",               /* 49 (BNA) */
 123         "esp",               /* 50 (IPPROTO_ESP, Encap Security Payload) */
 124         "ah",                /* 51 (IPPROTO_AH, Authentication Header) */
 125         "i-nlsp",            /* 52 (Integrated Net Layer Security TUBA) */
 126         "swipe",             /* 53 (IP with Encryption) */
 127         "narp",              /* 54 (NBMA Address Resolution Protocol) */
 128         "mobile",            /* 55 (IPPROTO_MOBILE, IP Mobility) */
 129         "tlsp",              /* 56 (Transport Layer Security Protocol using
 130                               *    Kryptonet key management)
 131                               */
 132         "skip",              /* 57 (SKIP) */
 133         "ipv6-icmp",         /* 58 (IPPROTO_ICMPV6, ICMP for IPv6) */
 134         "ipv6-nonxt",        /* 59 (IPPROTO_NONE, No Next Header for IPv6) */
 135         "ipv6-opts",         /* 60 (IPPROTO_DSTOPTS, Destination Options for
 136                               *    IPv6)
 137                               */
 138         NULL,                /* 61 (any host internal protocol) */
 139         "cftp",              /* 62 (IPPROTO_MOBILITY_OLD, CFTP, see the note
 140                               *    in ipproto.h)
 141                               */
 142         NULL,                /* 63 (any local network) */
 143         "sat-expak",         /* 64 (SATNET and Backroom EXPAK) */
 144         "kryptolan",         /* 65 (Kryptolan) */
 145         "rvd",               /* 66 (MIT Remote Virtual Disk Protocol) */
 146         "ippc",              /* 67 (Internet Pluribus Packet Core) */
 147         NULL,                /* 68 (any distributed file system) */
 148         "sat-mon",           /* 69 (SATNET Monitoring) */
 149         "visa",              /* 70 (VISA Protocol) */
 150         "ipcv",              /* 71 (Internet Packet Core Utility) */
 151         "cpnx",              /* 72 (Computer Protocol Network Executive) */
 152         "rspf",              /* 73 (Radio Shortest Path First, CPHB -- Computer
 153                               *    Protocol Heart Beat -- in IANA)
 154                               */
 155         "wsn",               /* 74 (Wang Span Network) */
 156         "pvp",               /* 75 (Packet Video Protocol) */
 157         "br-sat-mon",        /* 76 (Backroom SATNET Monitoring) */
 158         "sun-nd",            /* 77 (IPPROTO_ND, SUN ND PROTOCOL-Temporary) */
 159         "wb-mon",            /* 78 (WIDEBAND Monitoring) */
 160         "wb-expak",          /* 79 (WIDEBAND EXPAK) */
 161         "iso-ip",            /* 80 (ISO Internet Protocol) */
 162         "vmtp",              /* 81 (Versatile Message Transport) */
 163         "secure-vmtp",       /* 82 (Secure VMTP) */
 164         "vines",             /* 83 (VINES) */
 165         "ttp",               /* 84 (Transaction Transport Protocol, also IPTM --
 166                               *    Internet Protocol Traffic Manager)
 167                               */
 168         "nsfnet-igp",        /* 85 (NSFNET-IGP) */
 169         "dgp",               /* 86 (Dissimilar Gateway Protocol) */
 170         "tcf",               /* 87 (TCF) */
 171         "eigrp",             /* 88 (IPPROTO_EIGRP, Cisco EIGRP) */
 172         "ospf",              /* 89 (IPPROTO_OSPF, Open Shortest Path First
 173                               *    IGP)
 174                               */
 175         "sprite-rpc",        /* 90 (Sprite RPC Protocol) */
 176         "larp",              /* 91 (Locus Address Resolution Protocol) */
 177         "mtp",               /* 92 (Multicast Transport Protocol) */
 178         "ax.25",             /* 93 (AX.25 Frames) */
 179         "ipip",              /* 94 (IP-within-IP Encapsulation Protocol) */
 180         "micp",              /* 95 (Mobile Internetworking Control Pro.) */
 181         "scc-sp",            /* 96 (Semaphore Communications Sec. Pro.) */
 182         "etherip",           /* 97 (Ethernet-within-IP Encapsulation) */
 183         "encap",             /* 98 (Encapsulation Header) */
 184         NULL,                /* 99 (any private encryption scheme) */
 185         "gmtp",              /* 100 (GMTP) */
 186         "ifmp",              /* 101 (Ipsilon Flow Management Protocol) */
 187         "pnni",              /* 102 (PNNI over IP) */
 188         "pim",               /* 103 (IPPROTO_PIM, Protocol Independent
 189                               *     Multicast)
 190                               */
 191         "aris",              /* 104 (ARIS) */
 192         "scps",              /* 105 (SCPS) */
 193         "qnx",               /* 106 (QNX) */
 194         "a/n",               /* 107 (Active Networks) */
 195         "ipcomp",            /* 108 (IPPROTO_IPCOMP, IP Payload Compression
 196                               *     Protocol)
 197                               */
 198         "snp",               /* 109 (Sitara Networks Protocol) */
 199         "compaq-peer",       /* 110 (Compaq Peer Protocol) */
 200         "ipx-in-ip",         /* 111 (IPX in IP) */
 201         "vrrp",              /* 112 (IPPROTO_VRRP, Virtual Router Redundancy
 202                               *     Protocol)
 203                               */
 204         "pgm",               /* 113 (IPPROTO_PGM, PGM Reliable Transport
 205                               *     Protocol)
 206                               */
 207         NULL,                /* 114 (any 0-hop protocol) */
 208         "l2tp",              /* 115 (Layer Two Tunneling Protocol) */
 209         "ddx",               /* 116 (D-II Data Exchange (DDX)) */
 210         "iatp",              /* 117 (Interactive Agent Transfer Protocol) */
 211         "stp",               /* 118 (Schedule Transfer Protocol) */
 212         "srp",               /* 119 (SpectraLink Radio Protocol) */
 213         "uti",               /* 120 (UTI) */
 214         "smp",               /* 121 (Simple Message Protocol) */
 215         "sm",                /* 122 (Simple Multicast Protocol) */
 216         "ptp",               /* 123 (Performance Transparency Protocol) */
 217         "isis",              /* 124 (ISIS over IPv4) */
 218         "fire",              /* 125 (FIRE) */
 219         "crtp",              /* 126 (Combat Radio Transport Protocol) */
 220         "crudp",             /* 127 (Combat Radio User Datagram) */
 221         "sscopmce",          /* 128 (SSCOPMCE) */
 222         "iplt",              /* 129 (IPLT) */
 223         "sps",               /* 130 (Secure Packet Shield) */
 224         "pipe",              /* 131 (Private IP Encapsulation within IP) */
 225         "sctp",              /* 132 (IPPROTO_SCTP, Stream Control Transmission
 226                               *     Protocol)
 227                               */
 228         "fc",                /* 133 (Fibre Channel) */
 229         "rsvp-e2e-ignore",   /* 134 (RSVP-E2E-IGNORE) */
 230         "mobility-header",   /* 135 (IPPROTO_MOBILITY, Mobility Header) */
 231         "udplite",           /* 136 (UDPLite) */
 232         "mpls-in-ip",        /* 137 (MPLS-in-IP) */
 233         "manet",             /* 138 (MANET Protocols) */
 234         "hip",               /* 139 (Host Identity Protocol) */
 235         "shim6",             /* 140 (Shim6 Protocol) */
 236         "wesp",              /* 141 (Wrapped Encapsulating Security Payload) */
 237         "rohc",              /* 142 (Robust Header Compression) */
 238         NULL,                /* 143 (unassigned) */
 239         NULL,                /* 144 (unassigned) */
 240         NULL,                /* 145 (unassigned) */
 241         NULL,                /* 146 (unassigned) */
 242         NULL,                /* 147 (unassigned) */
 243         NULL,                /* 148 (unassigned) */
 244         NULL,                /* 149 (unassigned) */
 245         NULL,                /* 150 (unassigned) */
 246         NULL,                /* 151 (unassigned) */
 247         NULL,                /* 152 (unassigned) */
 248         NULL,                /* 153 (unassigned) */
 249         NULL,                /* 154 (unassigned) */
 250         NULL,                /* 155 (unassigned) */
 251         NULL,                /* 156 (unassigned) */
 252         NULL,                /* 157 (unassigned) */
 253         NULL,                /* 158 (unassigned) */
 254         NULL,                /* 159 (unassigned) */
 255         NULL,                /* 160 (unassigned) */
 256         NULL,                /* 161 (unassigned) */
 257         NULL,                /* 162 (unassigned) */
 258         NULL,                /* 163 (unassigned) */
 259         NULL,                /* 164 (unassigned) */
 260         NULL,                /* 165 (unassigned) */
 261         NULL,                /* 166 (unassigned) */
 262         NULL,                /* 167 (unassigned) */
 263         NULL,                /* 168 (unassigned) */
 264         NULL,                /* 169 (unassigned) */
 265         NULL,                /* 170 (unassigned) */
 266         NULL,                /* 171 (unassigned) */
 267         NULL,                /* 172 (unassigned) */
 268         NULL,                /* 173 (unassigned) */
 269         NULL,                /* 174 (unassigned) */
 270         NULL,                /* 175 (unassigned) */
 271         NULL,                /* 176 (unassigned) */
 272         NULL,                /* 177 (unassigned) */
 273         NULL,                /* 178 (unassigned) */
 274         NULL,                /* 179 (unassigned) */
 275         NULL,                /* 180 (unassigned) */
 276         NULL,                /* 181 (unassigned) */
 277         NULL,                /* 182 (unassigned) */
 278         NULL,                /* 183 (unassigned) */
 279         NULL,                /* 184 (unassigned) */
 280         NULL,                /* 185 (unassigned) */
 281         NULL,                /* 186 (unassigned) */
 282         NULL,                /* 187 (unassigned) */
 283         NULL,                /* 188 (unassigned) */
 284         NULL,                /* 189 (unassigned) */
 285         NULL,                /* 190 (unassigned) */
 286         NULL,                /* 191 (unassigned) */
 287         NULL,                /* 192 (unassigned) */
 288         NULL,                /* 193 (unassigned) */
 289         NULL,                /* 194 (unassigned) */
 290         NULL,                /* 195 (unassigned) */
 291         NULL,                /* 196 (unassigned) */
 292         NULL,                /* 197 (unassigned) */
 293         NULL,                /* 198 (unassigned) */
 294         NULL,                /* 199 (unassigned) */
 295         NULL,                /* 200 (unassigned) */
 296         NULL,                /* 201 (unassigned) */
 297         NULL,                /* 202 (unassigned) */
 298         NULL,                /* 203 (unassigned) */
 299         NULL,                /* 204 (unassigned) */
 300         NULL,                /* 205 (unassigned) */
 301         NULL,                /* 206 (unassigned) */
 302         NULL,                /* 207 (unassigned) */
 303         NULL,                /* 208 (unassigned) */
 304         NULL,                /* 209 (unassigned) */
 305         NULL,                /* 210 (unassigned) */
 306         NULL,                /* 211 (unassigned) */
 307         NULL,                /* 212 (unassigned) */
 308         NULL,                /* 213 (unassigned) */
 309         NULL,                /* 214 (unassigned) */
 310         NULL,                /* 215 (unassigned) */
 311         NULL,                /* 216 (unassigned) */
 312         NULL,                /* 217 (unassigned) */
 313         NULL,                /* 218 (unassigned) */
 314         NULL,                /* 219 (unassigned) */
 315         NULL,                /* 220 (unassigned) */
 316         NULL,                /* 221 (unassigned) */
 317         NULL,                /* 222 (unassigned) */
 318         NULL,                /* 223 (unassigned) */
 319         NULL,                /* 224 (unassigned) */
 320         NULL,                /* 225 (unassigned) */
 321         NULL,                /* 226 (unassigned) */
 322         NULL,                /* 227 (unassigned) */
 323         NULL,                /* 228 (unassigned) */
 324         NULL,                /* 229 (unassigned) */
 325         NULL,                /* 230 (unassigned) */
 326         NULL,                /* 231 (unassigned) */
 327         NULL,                /* 232 (unassigned) */
 328         NULL,                /* 233 (unassigned) */
 329         NULL,                /* 234 (unassigned) */
 330         NULL,                /* 235 (unassigned) */
 331         NULL,                /* 236 (unassigned) */
 332         NULL,                /* 237 (unassigned) */
 333         NULL,                /* 238 (unassigned) */
 334         NULL,                /* 239 (unassigned) */
 335         NULL,                /* 240 (unassigned) */
 336         NULL,                /* 241 (unassigned) */
 337         NULL,                /* 242 (unassigned) */
 338         NULL,                /* 243 (unassigned) */
 339         NULL,                /* 244 (unassigned) */
 340         NULL,                /* 245 (unassigned) */
 341         NULL,                /* 246 (unassigned) */
 342         NULL,                /* 247 (unassigned) */
 343         NULL,                /* 248 (unassigned) */
 344         NULL,                /* 249 (unassigned) */
 345         NULL,                /* 250 (unassigned) */
 346         NULL,                /* 251 (unassigned) */
 347         NULL,                /* 252 (unassigned) */
 348         "exptest-253",       /* 253 (Use for experimentation and testing,
 349                               *     RFC 3692)
 350                               */
 351         "exptest-254",       /* 254 (Use for experimentation and testing,
 352                               *     RFC 3692)
 353                               */
 354         "reserved",          /* 255 (reserved) */
 355 };
 356
 357 /* The function enforces the array index to be 8-bit. */
 358 const char *
 359 netdb_protoname (const uint8_t protoid)
 360 {
 361         return netdb_protocol_names[protoid];
 362 }