/*
* proto.c
*
* Written by Archie Cobbs <archie@freebsd.org>
* Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
* See ``COPYRIGHT.whistle''
*/
#include "ppp.h"
/*
* DEFINITIONS
*/
/* Protocol number <-> name mapping */
struct protoname {
u_short proto;
const char *name;
};
/*
* INTERNAL VARIABLES
*/
/* These are protocols we use and keep stats on */
static const struct protoname statProtos[] = {
{ 0, "Unknown" },
{ PROTO_IP, "IP" },
{ PROTO_VJUNCOMP, "VJUNCOMP" },
{ PROTO_VJCOMP, "VJCOMP" },
{ PROTO_IPV6, "IPv6" },
{ PROTO_MP, "MP" },
{ PROTO_IPCP, "IPCP" },
{ PROTO_IPV6CP, "IPV6CP" },
{ PROTO_ICOMPD, "ICOMPD" },
{ PROTO_COMPD, "COMPD" },
{ PROTO_ICCP, "ICCP" },
{ PROTO_CCP, "CCP" },
{ PROTO_LCP, "LCP" },
{ PROTO_PAP, "PAP" },
{ PROTO_LQR, "LQR" },
{ PROTO_CHAP, "CHAP" },
{ PROTO_ICRYPT, "ICRYPT" },
{ PROTO_CRYPT, "CRYPT" },
{ PROTO_IECP, "IECP" },
{ PROTO_ECP, "ECP" },
{ PROTO_SPAP, "SPAP" },
{ PROTO_ATCP, "ATCP" },
{ PROTO_EAP, "EAP" },
};
#define NUM_STAT_PROTOCOLS (sizeof(statProtos) / sizeof(*statProtos))
/*
* These are other protocols we recognize but don't use
* Reference: http://www.iana.org/assignments/ppp-numbers/ppp-numbers.xhtml
*/
static const struct protoname protoNames[] = {
#ifdef PROTO_NAME_LIST
/* Network layer protocols */
{ 0x0001, "Padding Protocol" },
{ 0x0002, "ROHC small-CID" },
{ 0x0005, "ROHC large-CID" },
{ 0x0021, "Internet Protocol" },
{ 0x0023, "OSI Network Layer" },
{ 0x0025, "Xerox NS IDP" },
{ 0x0027, "DECnet Phase IV" },
{ 0x0029, "Appletalk" },
{ 0x002b, "Novell IPX" },
{ 0x002d, "Van Jacobson Compressed TCP/IP" },
{ 0x002f, "Van Jacobson Uncompressed TCP/IP" },
{ 0x0031, "Bridging PDU" },
{ 0x0033, "Stream Protocol (ST-II)" },
{ 0x0035, "Banyan Vines" },
{ 0x0037, "reserved (until 1993)" },
{ 0x0039, "AppleTalk EDDP" },
{ 0x003b, "AppleTalk SmartBuffered" },
{ 0x003d, "Multi-Link" },
{ 0x003f, "NETBIOS Framing" },
{ 0x0041, "Cisco Systems" },
{ 0x0043, "Ascom Timeplex" },
{ 0x0045, "Fujitsu Link Backup and Load Balancing (LBLB)" },
{ 0x0047, "DCA Remote Lan" },
{ 0x0049, "Serial Data Transport Protocol (PPP-SDTP)" },
{ 0x004b, "SNA over 802.2" },
{ 0x004d, "SNA" },
{ 0x004f, "IP6 Header Compression" },
{ 0x0051, "KNX Bridging Data" },
{ 0x0053, "Encryption" },
{ 0x0055, "Individual Link Encryption" },
{ 0x0057, "Internet Protocol version 6" },
{ 0x0059, "PPP Muxing (RFC 3153)" },
{ 0x005b, "Vendor-Specific Network Protocol" },
{ 0x005d, "TRILL Network Protocol (TNP)" },
{ 0x0061, "RTP IPHC Full Header" },
{ 0x0063, "RTP IPHC Compressed TCP" },
{ 0x0065, "RTP IPHC Compressed Non TCP" },
{ 0x0067, "RTP IPHC Compressed UDP 8" },
{ 0x0069, "RTP IPHC Compressed RTP 8" },
{ 0x006f, "Stampede Bridging" },
{ 0x0071, "BAP Bandwidth Allocation Protocol" },
{ 0x0073, "MP+ Protocol" },
{ 0x007d, "reserved (Control Escape) (RFC 1661)" },
{ 0x007f, "reserved (compression inefficient) (RFC 1662)" },
{ 0x0081, "Unassigned" },
{ 0x0083, "Unassigned" },
{ 0x00c1, "NTCITS IPI" },
{ 0x00cf, "Reserved (PPP NLPID)" },
{ 0x00fb, "Single link compression in multilink" },
{ 0x00fd, "Compressed datagram" },
{ 0x00ff, "Reserved (compression inefficient)" },
{ 0x0201, "802.1d Hello Packets (RFC 1220)" },
{ 0x0203, "IBM Source Routing BPDU" },
{ 0x0205, "DEC LANBridge100 Spanning Tree" },
{ 0x0207, "Cisco Discovery Protocol" },
{ 0x0209, "Netcs Twin Routing" },
{ 0x020b, "STP - Scheduled Transfer Protocol" },
{ 0x020d, "EDP - Extreme Discovery Protocol" },
{ 0x0211, "Optical Supervisory Channel Protocol (OSCP)" },
{ 0x0213, "Optical Supervisory Channel Protocol (OSCP)" },
{ 0x0231, "Luxcom" },
{ 0x0233, "Sigma Network Systems" },
{ 0x0235, "Apple Client Server Protocol" },
{ 0x0281, "MPLS Unicast" },
{ 0x0283, "MPLS Multicast" },
{ 0x0285, "IEEE p1284.4 standard - data packets" },
{ 0x0287, "ETSI TETRA Network Protocol Type 1" },
{ 0x0289, "Multichannel Flow Treatment Protocol" },
{ 0x2063, "RTP IPHC Compressed TCP No Delta" },
{ 0x2065, "RTP IPHC Context State" },
{ 0x2067, "RTP IPHC Compressed UDP 16" },
{ 0x2069, "RTP IPHC Compressed RTP 16" },
{ 0x4001, "Cray Communications Control Protocol" },
{ 0x4003, "CDPD Mobile Network Registration Protocol" },
{ 0x4005, "Expand accelerator protocol" },
{ 0x4007, "ODSICP NCP" },
{ 0x4009, "DOCSIS DLL" },
{ 0x400b, "Cetacean Network Detection Protocol" },
{ 0x4021, "Stacker LZS" },
{ 0x4023, "RefTek Protocol" },
{ 0x4025, "Fibre Channel" },
{ 0x4027, "OpenDOF" },
{ 0x405b, "Vendor-Specific Protocol (VSP)" },
{ 0x405d, "TRILL Link State Protocol (TLSP)" },
/* Network layer control protocols */
{ 0x8021, "Internet Protocol Control Protocol" },
{ 0x8023, "OSI Network Layer Control Protocol" },
{ 0x8025, "Xerox NS IDP Control Protocol" },
{ 0x8027, "DECnet Phase IV Control Protocol" },
{ 0x8029, "Appletalk Control Protocol" },
{ 0x802b, "Novell IPX Control Protocol" },
{ 0x802d, "Reserved" },
{ 0x802f, "Reserved" },
{ 0x8031, "Bridging NCP" },
{ 0x8033, "Stream Protocol Control Protocol" },
{ 0x8035, "Banyan Vines Control Protocol" },
{ 0x8037, "Unassigned" },
{ 0x8039, "Reserved" },
{ 0x803b, "Reserved" },
{ 0x803d, "Multi-Link Control Protocol" },
{ 0x803f, "NETBIOS Framing Control Protocol" },
{ 0x8041, "Cisco Systems Control Protocol" },
{ 0x8043, "Ascom Timeplex" },
{ 0x8045, "Fujitsu LBLB Control Protocol" },
{ 0x8047, "DCA Remote Lan Network Control Protocol (RLNCP)" },
{ 0x8049, "Serial Data Control Protocol (PPP-SDCP)" },
{ 0x804b, "SNA over 802.2 Control Protocol" },
{ 0x804d, "SNA Control Protocol" },
{ 0x804f, "IP6 Header Compression Control Protocol" },
{ 0x8051, "KNX Bridging Control Protocol" },
{ 0x8053, "Encryption Control Protocol" },
{ 0x8055, "Individual Link Encryption Control Protocol" },
{ 0x8057, "IPv6 PPP Control Protocol" },
{ 0x8059, "PPP Muxing Control Protocol" },
{ 0x805b, "Vendor-Specific Network Control Protocol (VSNCP)" },
{ 0x805d, "TRILL Network Control Protocol (TNCP)" },
{ 0x806f, "Stampede Bridging Control Protocol" },
{ 0x8071, "BACP Bandwidth Allocation Control Protocol" },
{ 0x8073, "MP+ Control Protocol" },
{ 0x807d, "Not Used - reserved" },
{ 0x8081, "Unassigned" },
{ 0x8083, "Unassigned" },
{ 0x80c1, "NTCITS IPI Control Protocol" },
{ 0x80cf, "Not Used - reserved" },
{ 0x80fb, "single link compression in multilink control" },
{ 0x80fd, "Compression Control Protocol" },
{ 0x80ff, "Not Used - reserved" },
{ 0x8207, "Cisco Discovery Protocol Control" },
{ 0x8209, "Netcs Twin Routing" },
{ 0x820b, "STP - Control Protocol" },
{ 0x820d, "EDPCP - Extreme Discovery Protocol Ctrl Prtcl" },
{ 0x8235, "Apple Client Server Protocol Control" },
{ 0x8281, "MPLS Control Protocol (RFC 3032)" },
{ 0x8283, "Tag Switching - Multicast" },
{ 0x8285, "IEEE p1284.4 standard - Protocol Control" },
{ 0x8287, "ETSI TETRA NSP1 Control Protocol" },
{ 0x8289, "Multichannel Flow Treatment Protocol" },
/* Link layer control protocols */
{ 0xc021, "Link Control Protocol" },
{ 0xc023, "Password Authentication Protocol" },
{ 0xc025, "Link Quality Report" },
{ 0xc027, "Shiva Password Authentication Protocol" },
{ 0xc029, "CallBack Control Protocol (CBCP)" },
{ 0xc02b, "BACP Bandwidth Allocation Control Protocol (RFC 2125)" },
{ 0xc02d, "BAP (RFC 2125)" },
{ 0xc05b, "Vendor-Specific Authentication Protocol (RFC 3772)" },
{ 0xc081, "Container Control Protocol", },
{ 0xc223, "Challenge Handshake Authentication Protocol" },
{ 0xc225, "RSA Authentication Protocol" },
{ 0xc227, "Extensible Authentication Protocol" },
{ 0xc229, "Mitsubishi Security Info Exch Ptcl (SIEP)" },
{ 0xc26f, "Stampede Bridging Authorization Protocol" },
{ 0xc281, "Proprietary Authentication Protocol", },
{ 0xc283, "Proprietary Authentication Protocol", },
{ 0xc481, "Proprietary Node ID Authentication Protocol", },
#endif
};
#define NUM_PROTO_NAMES (sizeof(protoNames) / sizeof(*protoNames))
/*
* INTERNAL FUNCTIONS
*/
static int ProtoNameCmp(const void *v1, const void *v2);
/*
* ProtoName()
* XXX For unknown protocols this function return pointer
* on the static variable. It is not good, but I think
* it should not create troubles as it is used only for logging.
*/
const char *
ProtoName(int proto)
{
unsigned k;
static char buf[20];
struct protoname key, *pn;
/* First check our stat list for known short names */
for (k = 0; k < NUM_STAT_PROTOCOLS; k++) {
if (proto == statProtos[k].proto)
return(statProtos[k].name);
}
/* Now look in list of all defined protocols */
key.proto = proto;
if ((pn = bsearch(&key, protoNames,
NUM_PROTO_NAMES, sizeof(*pn), ProtoNameCmp)) != NULL)
return(pn->name);
/* Return hex value */
buf[19] = 0;
sprintf(buf, "0x%04x", proto);
return(buf);
}
/*
* ProtoNameCmp()
*/
static int
ProtoNameCmp(const void *v1, const void *v2)
{
const struct protoname *const p1 = (const struct protoname *) v1;
const struct protoname *const p2 = (const struct protoname *) v2;
return(p1->proto - p2->proto);
}
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