/* vi: set sw=4 ts=4: */ /* * 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 "libbb.h" #include "rt_names.h" #include "utils.h" #if defined(__GLIBC__) && __GLIBC__ >=2 && __GLIBC_MINOR__ >= 1 #include <net/ethernet.h> #else #include <linux/if_ether.h> #endif #if !ENABLE_WERROR #warning de-bloat #endif /* Before re-enabling this, please (1) conditionalize exotic protocols * on CONFIG_something, and (2) decouple strings and numbers * (use llproto_ids[] = n,n,n..; and llproto_names[] = "loop\0" "pup\0" ...;) */ #define __PF(f,n) { ETH_P_##f, #n }, static struct { int id; const char *name; } llproto_names[] = { __PF(LOOP,loop) __PF(PUP,pup) #ifdef ETH_P_PUPAT __PF(PUPAT,pupat) #endif __PF(IP,ip) __PF(X25,x25) __PF(ARP,arp) __PF(BPQ,bpq) #ifdef ETH_P_IEEEPUP __PF(IEEEPUP,ieeepup) #endif #ifdef ETH_P_IEEEPUPAT __PF(IEEEPUPAT,ieeepupat) #endif __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) #ifdef ETH_P_PPP_DISC __PF(PPP_DISC,ppp_disc) #endif #ifdef ETH_P_PPP_SES __PF(PPP_SES,ppp_ses) #endif #ifdef ETH_P_ATMMPOA __PF(ATMMPOA,atmmpoa) #endif #ifdef ETH_P_ATMFATE __PF(ATMFATE,atmfate) #endif __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(PPPTALK,ppptalk) __PF(TR_802_2,tr_802_2) __PF(MOBITEX,mobitex) __PF(CONTROL,control) __PF(IRDA,irda) #ifdef ETH_P_ECONET __PF(ECONET,econet) #endif { 0x8100, "802.1Q" }, { ETH_P_IP, "ipv4" }, }; #undef __PF const char *ll_proto_n2a(unsigned short id, char *buf, int len) { unsigned i; id = ntohs(id); for (i = 0; i < ARRAY_SIZE(llproto_names); 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, char *buf) { unsigned i; for (i = 0; i < ARRAY_SIZE(llproto_names); i++) { if (strcasecmp(llproto_names[i].name, buf) == 0) { i = llproto_names[i].id; goto good; } } i = bb_strtou(buf, NULL, 0); if (errno || i > 0xffff) return -1; good: *id = htons(i); return 0; }