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      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 (at) 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" },
     50     { IPPROTO_PGM, "PGM" },
     51     { IPPROTO_SCTP, "SCTP" },
     52     { IPPROTO_MOBILITY, "Mobility" },
     53     { IPPROTO_CARP, "CARP" },
     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 nd_uint8_t protoid)
    360 {
    361 	return netdb_protocol_names[protoid];
    362 }
    363