LXR busybox/networking/libiproute/ll

   1/* vi: set sw=4 ts=4: */
   2/*
   3 * This program is free software; you can redistribute it and/or
   4 * modify it under the terms of the GNU General Public License
   5 * as published by the Free Software Foundation; either version
   6 * 2 of the License, or (at your option) any later version.
   7 *
   8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
   9 */
  10
  11#include "libbb.h"
  12#include "rt_names.h"
  13#include "utils.h"
  14
  15#include <netinet/if_ether.h>
  16
  17/* Please conditionalize exotic protocols on CONFIG_something */
  18
  19static const uint16_t llproto_ids[] = {
  20#define __PF(f,n) ETH_P_##f,
  21__PF(LOOP,loop)
  22__PF(PUP,pup)
  23#ifdef ETH_P_PUPAT
  24__PF(PUPAT,pupat)
  25#endif
  26__PF(IP,ip)
  27__PF(X25,x25)
  28__PF(ARP,arp)
  29__PF(BPQ,bpq)
  30#ifdef ETH_P_IEEEPUP
  31__PF(IEEEPUP,ieeepup)
  32#endif
  33#ifdef ETH_P_IEEEPUPAT
  34__PF(IEEEPUPAT,ieeepupat)
  35#endif
  36__PF(DEC,dec)
  37__PF(DNA_DL,dna_dl)
  38__PF(DNA_RC,dna_rc)
  39__PF(DNA_RT,dna_rt)
  40__PF(LAT,lat)
  41__PF(DIAG,diag)
  42__PF(CUST,cust)
  43__PF(SCA,sca)
  44__PF(RARP,rarp)
  45__PF(ATALK,atalk)
  46__PF(AARP,aarp)
  47__PF(IPX,ipx)
  48__PF(IPV6,ipv6)
  49#ifdef ETH_P_PPP_DISC
  50__PF(PPP_DISC,ppp_disc)
  51#endif
  52#ifdef ETH_P_PPP_SES
  53__PF(PPP_SES,ppp_ses)
  54#endif
  55#ifdef ETH_P_ATMMPOA
  56__PF(ATMMPOA,atmmpoa)
  57#endif
  58#ifdef ETH_P_ATMFATE
  59__PF(ATMFATE,atmfate)
  60#endif
  61
  62__PF(802_3,802_3)
  63__PF(AX25,ax25)
  64__PF(ALL,all)
  65__PF(802_2,802_2)
  66__PF(SNAP,snap)
  67__PF(DDCMP,ddcmp)
  68__PF(WAN_PPP,wan_ppp)
  69__PF(PPP_MP,ppp_mp)
  70__PF(LOCALTALK,localtalk)
  71__PF(PPPTALK,ppptalk)
  72__PF(TR_802_2,tr_802_2)
  73__PF(MOBITEX,mobitex)
  74__PF(CONTROL,control)
  75__PF(IRDA,irda)
  76#ifdef ETH_P_ECONET
  77__PF(ECONET,econet)
  78#endif
  79
  800x8100,
  81ETH_P_IP
  82};
  83#undef __PF
  84
  85/* Keep declarations above and below in sync! */
  86
  87static const char llproto_names[] =
  88#define __PF(f,n) #n "\0"
  89__PF(LOOP,loop)
  90__PF(PUP,pup)
  91#ifdef ETH_P_PUPAT
  92__PF(PUPAT,pupat)
  93#endif
  94__PF(IP,ip)
  95__PF(X25,x25)
  96__PF(ARP,arp)
  97__PF(BPQ,bpq)
  98#ifdef ETH_P_IEEEPUP
  99__PF(IEEEPUP,ieeepup)
 100#endif
 101#ifdef ETH_P_IEEEPUPAT
 102__PF(IEEEPUPAT,ieeepupat)
 103#endif
 104__PF(DEC,dec)
 105__PF(DNA_DL,dna_dl)
 106__PF(DNA_RC,dna_rc)
 107__PF(DNA_RT,dna_rt)
 108__PF(LAT,lat)
 109__PF(DIAG,diag)
 110__PF(CUST,cust)
 111__PF(SCA,sca)
 112__PF(RARP,rarp)
 113__PF(ATALK,atalk)
 114__PF(AARP,aarp)
 115__PF(IPX,ipx)
 116__PF(IPV6,ipv6)
 117#ifdef ETH_P_PPP_DISC
 118__PF(PPP_DISC,ppp_disc)
 119#endif
 120#ifdef ETH_P_PPP_SES
 121__PF(PPP_SES,ppp_ses)
 122#endif
 123#ifdef ETH_P_ATMMPOA
 124__PF(ATMMPOA,atmmpoa)
 125#endif
 126#ifdef ETH_P_ATMFATE
 127__PF(ATMFATE,atmfate)
 128#endif
 129
 130__PF(802_3,802_3)
 131__PF(AX25,ax25)
 132__PF(ALL,all)
 133__PF(802_2,802_2)
 134__PF(SNAP,snap)
 135__PF(DDCMP,ddcmp)
 136__PF(WAN_PPP,wan_ppp)
 137__PF(PPP_MP,ppp_mp)
 138__PF(LOCALTALK,localtalk)
 139__PF(PPPTALK,ppptalk)
 140__PF(TR_802_2,tr_802_2)
 141__PF(MOBITEX,mobitex)
 142__PF(CONTROL,control)
 143__PF(IRDA,irda)
 144#ifdef ETH_P_ECONET
 145__PF(ECONET,econet)
 146#endif
 147
 148"802.1Q" "\0"
 149"ipv4" "\0"
 150;
 151#undef __PF
 152
 153
 154const char* FAST_FUNC ll_proto_n2a(unsigned short id, char *buf, int len)
 155{
 156        unsigned i;
 157        id = ntohs(id);
 158        for (i = 0; i < ARRAY_SIZE(llproto_ids); i++) {
 159                if (llproto_ids[i] == id)
 160                        return nth_string(llproto_names, i);
 161        }
 162        snprintf(buf, len, "[%u]", id);
 163        return buf;
 164}
 165
 166int FAST_FUNC ll_proto_a2n(unsigned short *id, char *buf)
 167{
 168        unsigned i;
 169        const char *name = llproto_names;
 170        for (i = 0; i < ARRAY_SIZE(llproto_ids); i++) {
 171                if (strcasecmp(name, buf) == 0) {
 172                        i = llproto_ids[i];
 173                        goto good;
 174                }
 175                name += strlen(name) + 1;
 176        }
 177        errno = 0;
 178        i = bb_strtou(buf, NULL, 0);
 179        if (errno || i > 0xffff)
 180                return -1;
 181 good:
 182        *id = htons(i);
 183        return 0;
 184}
 185