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#include "libbb.h"
  11#include "rt_names.h"
  12#include "utils.h"
  13
  14#include <netinet/if_ether.h>
  15
  16/* Please conditionalize exotic protocols on CONFIG_something */
  17
  18static const uint16_t llproto_ids[] ALIGN2 = {
  19#define __PF(f,n) ETH_P_##f,
  20__PF(LOOP,loop)
  21__PF(PUP,pup)
  22#ifdef ETH_P_PUPAT
  23__PF(PUPAT,pupat)
  24#endif
  25__PF(IP,ip)
  26__PF(X25,x25)
  27__PF(ARP,arp)
  28__PF(BPQ,bpq)
  29#ifdef ETH_P_IEEEPUP
  30__PF(IEEEPUP,ieeepup)
  31#endif
  32#ifdef ETH_P_IEEEPUPAT
  33__PF(IEEEPUPAT,ieeepupat)
  34#endif
  35__PF(DEC,dec)
  36__PF(DNA_DL,dna_dl)
  37__PF(DNA_RC,dna_rc)
  38__PF(DNA_RT,dna_rt)
  39__PF(LAT,lat)
  40__PF(DIAG,diag)
  41__PF(CUST,cust)
  42__PF(SCA,sca)
  43__PF(RARP,rarp)
  44__PF(ATALK,atalk)
  45__PF(AARP,aarp)
  46__PF(IPX,ipx)
  47__PF(IPV6,ipv6)
  48#ifdef ETH_P_PPP_DISC
  49__PF(PPP_DISC,ppp_disc)
  50#endif
  51#ifdef ETH_P_PPP_SES
  52__PF(PPP_SES,ppp_ses)
  53#endif
  54#ifdef ETH_P_ATMMPOA
  55__PF(ATMMPOA,atmmpoa)
  56#endif
  57#ifdef ETH_P_ATMFATE
  58__PF(ATMFATE,atmfate)
  59#endif
  60
  61__PF(802_3,802_3)
  62__PF(AX25,ax25)
  63__PF(ALL,all)
  64__PF(802_2,802_2)
  65__PF(SNAP,snap)
  66__PF(DDCMP,ddcmp)
  67__PF(WAN_PPP,wan_ppp)
  68__PF(PPP_MP,ppp_mp)
  69__PF(LOCALTALK,localtalk)
  70__PF(PPPTALK,ppptalk)
  71__PF(TR_802_2,tr_802_2)
  72__PF(MOBITEX,mobitex)
  73__PF(CONTROL,control)
  74__PF(IRDA,irda)
  75#ifdef ETH_P_ECONET
  76__PF(ECONET,econet)
  77#endif
  78
  790x8100,
  80ETH_P_IP
  81};
  82#undef __PF
  83
  84/* Keep declarations above and below in sync! */
  85
  86static const char llproto_names[] ALIGN1 =
  87#define __PF(f,n) #n "\0"
  88__PF(LOOP,loop)
  89__PF(PUP,pup)
  90#ifdef ETH_P_PUPAT
  91__PF(PUPAT,pupat)
  92#endif
  93__PF(IP,ip)
  94__PF(X25,x25)
  95__PF(ARP,arp)
  96__PF(BPQ,bpq)
  97#ifdef ETH_P_IEEEPUP
  98__PF(IEEEPUP,ieeepup)
  99#endif
 100#ifdef ETH_P_IEEEPUPAT
 101__PF(IEEEPUPAT,ieeepupat)
 102#endif
 103__PF(DEC,dec)
 104__PF(DNA_DL,dna_dl)
 105__PF(DNA_RC,dna_rc)
 106__PF(DNA_RT,dna_rt)
 107__PF(LAT,lat)
 108__PF(DIAG,diag)
 109__PF(CUST,cust)
 110__PF(SCA,sca)
 111__PF(RARP,rarp)
 112__PF(ATALK,atalk)
 113__PF(AARP,aarp)
 114__PF(IPX,ipx)
 115__PF(IPV6,ipv6)
 116#ifdef ETH_P_PPP_DISC
 117__PF(PPP_DISC,ppp_disc)
 118#endif
 119#ifdef ETH_P_PPP_SES
 120__PF(PPP_SES,ppp_ses)
 121#endif
 122#ifdef ETH_P_ATMMPOA
 123__PF(ATMMPOA,atmmpoa)
 124#endif
 125#ifdef ETH_P_ATMFATE
 126__PF(ATMFATE,atmfate)
 127#endif
 128
 129__PF(802_3,802_3)
 130__PF(AX25,ax25)
 131__PF(ALL,all)
 132__PF(802_2,802_2)
 133__PF(SNAP,snap)
 134__PF(DDCMP,ddcmp)
 135__PF(WAN_PPP,wan_ppp)
 136__PF(PPP_MP,ppp_mp)
 137__PF(LOCALTALK,localtalk)
 138__PF(PPPTALK,ppptalk)
 139__PF(TR_802_2,tr_802_2)
 140__PF(MOBITEX,mobitex)
 141__PF(CONTROL,control)
 142__PF(IRDA,irda)
 143#ifdef ETH_P_ECONET
 144__PF(ECONET,econet)
 145#endif
 146
 147"802.1Q" "\0"
 148"ipv4" "\0"
 149;
 150#undef __PF
 151
 152
 153const char* FAST_FUNC ll_proto_n2a(unsigned short id, char *buf, int len)
 154{
 155        unsigned i;
 156        id = ntohs(id);
 157        for (i = 0; i < ARRAY_SIZE(llproto_ids); i++) {
 158                if (llproto_ids[i] == id)
 159                        return nth_string(llproto_names, i);
 160        }
 161        snprintf(buf, len, "[%u]", id);
 162        return buf;
 163}
 164
 165int FAST_FUNC ll_proto_a2n(unsigned short *id, char *buf)
 166{
 167        unsigned i;
 168        const char *name = llproto_names;
 169        for (i = 0; i < ARRAY_SIZE(llproto_ids); i++) {
 170                if (strcasecmp(name, buf) == 0) {
 171                        i = llproto_ids[i];
 172                        goto good;
 173                }
 174                name += strlen(name) + 1;
 175        }
 176        errno = 0;
 177        i = bb_strtou(buf, NULL, 0);
 178        if (errno || i > 0xffff)
 179                return -1;
 180 good:
 181        *id = htons(i);
 182        return 0;
 183}
 184