/*

 * ll_proto.c

 *

 *		This program is free software; you can redistribute it and/or

 *		modify it under the terms of the GNU General Public License

 *		as published by the Free Software Foundation; either version

 *		2 of the License, or (at your option) any later version.

 *

 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>

 */

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <fcntl.h>

#include <sys/ioctl.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#include <string.h>

#include <linux/netdevice.h>

#include <linux/if_arp.h>

#include <linux/sockios.h>

#include "utils.h"

#include "rt_names.h"

#define __PF(f,n) { ETH_P_##f, #n },

static const struct {

	int id;

	const char *name;

} llproto_names[] = {

__PF(LOOP,loop)

__PF(PUP,pup)

__PF(PUPAT,pupat)

__PF(IP,ip)

__PF(X25,x25)

__PF(ARP,arp)

__PF(BPQ,bpq)

__PF(IEEEPUP,ieeepup)

__PF(IEEEPUPAT,ieeepupat)

__PF(DEC,dec)

__PF(DNA_DL,dna_dl)

__PF(DNA_RC,dna_rc)

__PF(DNA_RT,dna_rt)

__PF(LAT,lat)

__PF(DIAG,diag)

__PF(CUST,cust)

__PF(SCA,sca)

__PF(RARP,rarp)

__PF(ATALK,atalk)

__PF(AARP,aarp)

__PF(IPX,ipx)

__PF(IPV6,ipv6)

__PF(PPP_DISC,ppp_disc)

__PF(PPP_SES,ppp_ses)

__PF(ATMMPOA,atmmpoa)

__PF(ATMFATE,atmfate)

__PF(802_3,802_3)

__PF(AX25,ax25)

__PF(ALL,all)

__PF(802_2,802_2)

__PF(SNAP,snap)

__PF(DDCMP,ddcmp)

__PF(WAN_PPP,wan_ppp)

__PF(PPP_MP,ppp_mp)

__PF(LOCALTALK,localtalk)

__PF(CAN,can)

__PF(PPPTALK,ppptalk)

__PF(TR_802_2,tr_802_2)

__PF(MOBITEX,mobitex)

__PF(CONTROL,control)

__PF(IRDA,irda)

__PF(ECONET,econet)

__PF(TIPC,tipc)

__PF(AOE,aoe)

__PF(8021Q,802.1Q)

__PF(8021AD,802.1ad)

__PF(MPLS_UC,mpls_uc)

__PF(MPLS_MC,mpls_mc)

{ 0x8100, "802.1Q" },

{ 0x88cc, "LLDP" },

{ ETH_P_IP, "ipv4" },

};

#undef __PF

const char * ll_proto_n2a(unsigned short id, char *buf, int len)

{

        int i;

	id = ntohs(id);

        for (i=0; !numeric && i

                 if (llproto_names[i].id == id)

			return llproto_names[i].name;

	}

        snprintf(buf, len, "[%d]", id);

        return buf;

}

int ll_proto_a2n(unsigned short *id, const char *buf)

{

        int i;

        for (i=0; i < sizeof(llproto_names)/sizeof(llproto_names[0]); i++) {

                 if (strcasecmp(llproto_names[i].name, buf) == 0) {

			 *id = htons(llproto_names[i].id);

			 return 0;

		 }

	}

	if (get_be16(id, buf, 0))

		return -1;

	return 0;

}