blob: 263ac78ada2d0300d74257eb07d955be413a6982
| 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 | #include <linux/if_ether.h> |
| 17 | |
| 18 | |
| 19 | /* Please conditionalize exotic protocols on CONFIG_something */ |
| 20 | |
| 21 | static const uint16_t llproto_ids[] = { |
| 22 | #define __PF(f,n) ETH_P_##f, |
| 23 | __PF(LOOP,loop) |
| 24 | __PF(PUP,pup) |
| 25 | #ifdef ETH_P_PUPAT |
| 26 | __PF(PUPAT,pupat) |
| 27 | #endif |
| 28 | __PF(IP,ip) |
| 29 | __PF(X25,x25) |
| 30 | __PF(ARP,arp) |
| 31 | __PF(BPQ,bpq) |
| 32 | #ifdef ETH_P_IEEEPUP |
| 33 | __PF(IEEEPUP,ieeepup) |
| 34 | #endif |
| 35 | #ifdef ETH_P_IEEEPUPAT |
| 36 | __PF(IEEEPUPAT,ieeepupat) |
| 37 | #endif |
| 38 | __PF(DEC,dec) |
| 39 | __PF(DNA_DL,dna_dl) |
| 40 | __PF(DNA_RC,dna_rc) |
| 41 | __PF(DNA_RT,dna_rt) |
| 42 | __PF(LAT,lat) |
| 43 | __PF(DIAG,diag) |
| 44 | __PF(CUST,cust) |
| 45 | __PF(SCA,sca) |
| 46 | __PF(RARP,rarp) |
| 47 | __PF(ATALK,atalk) |
| 48 | __PF(AARP,aarp) |
| 49 | __PF(IPX,ipx) |
| 50 | __PF(IPV6,ipv6) |
| 51 | #ifdef ETH_P_PPP_DISC |
| 52 | __PF(PPP_DISC,ppp_disc) |
| 53 | #endif |
| 54 | #ifdef ETH_P_PPP_SES |
| 55 | __PF(PPP_SES,ppp_ses) |
| 56 | #endif |
| 57 | #ifdef ETH_P_ATMMPOA |
| 58 | __PF(ATMMPOA,atmmpoa) |
| 59 | #endif |
| 60 | #ifdef ETH_P_ATMFATE |
| 61 | __PF(ATMFATE,atmfate) |
| 62 | #endif |
| 63 | |
| 64 | __PF(802_3,802_3) |
| 65 | __PF(AX25,ax25) |
| 66 | __PF(ALL,all) |
| 67 | __PF(802_2,802_2) |
| 68 | __PF(SNAP,snap) |
| 69 | __PF(DDCMP,ddcmp) |
| 70 | __PF(WAN_PPP,wan_ppp) |
| 71 | __PF(PPP_MP,ppp_mp) |
| 72 | __PF(LOCALTALK,localtalk) |
| 73 | __PF(PPPTALK,ppptalk) |
| 74 | __PF(TR_802_2,tr_802_2) |
| 75 | __PF(MOBITEX,mobitex) |
| 76 | __PF(CONTROL,control) |
| 77 | __PF(IRDA,irda) |
| 78 | #ifdef ETH_P_ECONET |
| 79 | __PF(ECONET,econet) |
| 80 | #endif |
| 81 | |
| 82 | 0x8100, |
| 83 | ETH_P_IP |
| 84 | }; |
| 85 | #undef __PF |
| 86 | |
| 87 | /* Keep declarations above and below in sync! */ |
| 88 | |
| 89 | static const char llproto_names[] ALIGN1 = |
| 90 | #define __PF(f,n) #n "\0" |
| 91 | __PF(LOOP,loop) |
| 92 | __PF(PUP,pup) |
| 93 | #ifdef ETH_P_PUPAT |
| 94 | __PF(PUPAT,pupat) |
| 95 | #endif |
| 96 | __PF(IP,ip) |
| 97 | __PF(X25,x25) |
| 98 | __PF(ARP,arp) |
| 99 | __PF(BPQ,bpq) |
| 100 | #ifdef ETH_P_IEEEPUP |
| 101 | __PF(IEEEPUP,ieeepup) |
| 102 | #endif |
| 103 | #ifdef ETH_P_IEEEPUPAT |
| 104 | __PF(IEEEPUPAT,ieeepupat) |
| 105 | #endif |
| 106 | __PF(DEC,dec) |
| 107 | __PF(DNA_DL,dna_dl) |
| 108 | __PF(DNA_RC,dna_rc) |
| 109 | __PF(DNA_RT,dna_rt) |
| 110 | __PF(LAT,lat) |
| 111 | __PF(DIAG,diag) |
| 112 | __PF(CUST,cust) |
| 113 | __PF(SCA,sca) |
| 114 | __PF(RARP,rarp) |
| 115 | __PF(ATALK,atalk) |
| 116 | __PF(AARP,aarp) |
| 117 | __PF(IPX,ipx) |
| 118 | __PF(IPV6,ipv6) |
| 119 | #ifdef ETH_P_PPP_DISC |
| 120 | __PF(PPP_DISC,ppp_disc) |
| 121 | #endif |
| 122 | #ifdef ETH_P_PPP_SES |
| 123 | __PF(PPP_SES,ppp_ses) |
| 124 | #endif |
| 125 | #ifdef ETH_P_ATMMPOA |
| 126 | __PF(ATMMPOA,atmmpoa) |
| 127 | #endif |
| 128 | #ifdef ETH_P_ATMFATE |
| 129 | __PF(ATMFATE,atmfate) |
| 130 | #endif |
| 131 | |
| 132 | __PF(802_3,802_3) |
| 133 | __PF(AX25,ax25) |
| 134 | __PF(ALL,all) |
| 135 | __PF(802_2,802_2) |
| 136 | __PF(SNAP,snap) |
| 137 | __PF(DDCMP,ddcmp) |
| 138 | __PF(WAN_PPP,wan_ppp) |
| 139 | __PF(PPP_MP,ppp_mp) |
| 140 | __PF(LOCALTALK,localtalk) |
| 141 | __PF(PPPTALK,ppptalk) |
| 142 | __PF(TR_802_2,tr_802_2) |
| 143 | __PF(MOBITEX,mobitex) |
| 144 | __PF(CONTROL,control) |
| 145 | __PF(IRDA,irda) |
| 146 | #ifdef ETH_P_ECONET |
| 147 | __PF(ECONET,econet) |
| 148 | #endif |
| 149 | |
| 150 | "802.1Q" "\0" |
| 151 | "ipv4" "\0" |
| 152 | ; |
| 153 | #undef __PF |
| 154 | |
| 155 | |
| 156 | const char* FAST_FUNC ll_proto_n2a(unsigned short id, char *buf, int len) |
| 157 | { |
| 158 | unsigned i; |
| 159 | id = ntohs(id); |
| 160 | for (i = 0; i < ARRAY_SIZE(llproto_ids); i++) { |
| 161 | if (llproto_ids[i] == id) |
| 162 | return nth_string(llproto_names, i); |
| 163 | } |
| 164 | snprintf(buf, len, "[%u]", id); |
| 165 | return buf; |
| 166 | } |
| 167 | |
| 168 | int FAST_FUNC ll_proto_a2n(unsigned short *id, char *buf) |
| 169 | { |
| 170 | unsigned i; |
| 171 | const char *name = llproto_names; |
| 172 | for (i = 0; i < ARRAY_SIZE(llproto_ids); i++) { |
| 173 | if (strcasecmp(name, buf) == 0) { |
| 174 | i = llproto_ids[i]; |
| 175 | goto good; |
| 176 | } |
| 177 | name += strlen(name) + 1; |
| 178 | } |
| 179 | errno = 0; |
| 180 | i = bb_strtou(buf, NULL, 0); |
| 181 | if (errno || i > 0xffff) |
| 182 | return -1; |
| 183 | good: |
| 184 | *id = htons(i); |
| 185 | return 0; |
| 186 | } |
| 187 |