1/* vi: set sw=4 ts=4: */ 2/* 3 * ll_proto.c 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 8 * 2 of the License, or (at your option) any later version. 9 * 10 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> 11 */ 12 13#include "libbb.h" 14#include "rt_names.h" 15#include "utils.h" 16 17#if defined(__GLIBC__) && __GLIBC__ >=2 && __GLIBC_MINOR__ >= 1 18#include <net/ethernet.h> 19#else 20#include <linux/if_ether.h> 21#endif 22 23#define __PF(f,n) { ETH_P_##f, #n }, 24static struct { 25 int id; 26 const char *name; 27} llproto_names[] = { 28__PF(LOOP,loop) 29__PF(PUP,pup) 30#ifdef ETH_P_PUPAT 31__PF(PUPAT,pupat) 32#endif 33__PF(IP,ip) 34__PF(X25,x25) 35__PF(ARP,arp) 36__PF(BPQ,bpq) 37#ifdef ETH_P_IEEEPUP 38__PF(IEEEPUP,ieeepup) 39#endif 40#ifdef ETH_P_IEEEPUPAT 41__PF(IEEEPUPAT,ieeepupat) 42#endif 43__PF(DEC,dec) 44__PF(DNA_DL,dna_dl) 45__PF(DNA_RC,dna_rc) 46__PF(DNA_RT,dna_rt) 47__PF(LAT,lat) 48__PF(DIAG,diag) 49__PF(CUST,cust) 50__PF(SCA,sca) 51__PF(RARP,rarp) 52__PF(ATALK,atalk) 53__PF(AARP,aarp) 54__PF(IPX,ipx) 55__PF(IPV6,ipv6) 56#ifdef ETH_P_PPP_DISC 57__PF(PPP_DISC,ppp_disc) 58#endif 59#ifdef ETH_P_PPP_SES 60__PF(PPP_SES,ppp_ses) 61#endif 62#ifdef ETH_P_ATMMPOA 63__PF(ATMMPOA,atmmpoa) 64#endif 65#ifdef ETH_P_ATMFATE 66__PF(ATMFATE,atmfate) 67#endif 68 69__PF(802_3,802_3) 70__PF(AX25,ax25) 71__PF(ALL,all) 72__PF(802_2,802_2) 73__PF(SNAP,snap) 74__PF(DDCMP,ddcmp) 75__PF(WAN_PPP,wan_ppp) 76__PF(PPP_MP,ppp_mp) 77__PF(LOCALTALK,localtalk) 78__PF(PPPTALK,ppptalk) 79__PF(TR_802_2,tr_802_2) 80__PF(MOBITEX,mobitex) 81__PF(CONTROL,control) 82__PF(IRDA,irda) 83#ifdef ETH_P_ECONET 84__PF(ECONET,econet) 85#endif 86 87{ 0x8100, "802.1Q" }, 88{ ETH_P_IP, "ipv4" }, 89}; 90#undef __PF 91 92 93const char * ll_proto_n2a(unsigned short id, char *buf, int len) 94{ 95 int i; 96 97 id = ntohs(id); 98 99 for (i=0; i < ARRAY_SIZE(llproto_names); i++) { 100 if (llproto_names[i].id == id) 101 return llproto_names[i].name; 102 } 103 snprintf(buf, len, "[%d]", id); 104 return buf; 105} 106 107int ll_proto_a2n(unsigned short *id, char *buf) 108{ 109 int i; 110 for (i=0; i < ARRAY_SIZE(llproto_names); i++) { 111 if (strcasecmp(llproto_names[i].name, buf) == 0) { 112 *id = htons(llproto_names[i].id); 113 return 0; 114 } 115 } 116 if (get_u16(id, buf, 0)) 117 return -1; 118 *id = htons(*id); 119 return 0; 120} 121