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    Contents of /trunk/mkinitrd-magellan/busybox/networking/libiproute/ll_proto.c

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    Revision 984 - (show annotations) (download)
    Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
    File MIME type: text/plain
    File size: 2565 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    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 #if !ENABLE_WERROR
    24 #warning de-bloat
    25 #endif
    26 /* Before re-enabling this, please (1) conditionalize exotic protocols
    27 * on CONFIG_something, and (2) decouple strings and numbers
    28 * (use llproto_ids[] = n,n,n..; and llproto_names[] = "loop\0" "pup\0" ...;)
    29 */
    30
    31 #define __PF(f,n) { ETH_P_##f, #n },
    32 static struct {
    33 int id;
    34 const char *name;
    35 } llproto_names[] = {
    36 __PF(LOOP,loop)
    37 __PF(PUP,pup)
    38 #ifdef ETH_P_PUPAT
    39 __PF(PUPAT,pupat)
    40 #endif
    41 __PF(IP,ip)
    42 __PF(X25,x25)
    43 __PF(ARP,arp)
    44 __PF(BPQ,bpq)
    45 #ifdef ETH_P_IEEEPUP
    46 __PF(IEEEPUP,ieeepup)
    47 #endif
    48 #ifdef ETH_P_IEEEPUPAT
    49 __PF(IEEEPUPAT,ieeepupat)
    50 #endif
    51 __PF(DEC,dec)
    52 __PF(DNA_DL,dna_dl)
    53 __PF(DNA_RC,dna_rc)
    54 __PF(DNA_RT,dna_rt)
    55 __PF(LAT,lat)
    56 __PF(DIAG,diag)
    57 __PF(CUST,cust)
    58 __PF(SCA,sca)
    59 __PF(RARP,rarp)
    60 __PF(ATALK,atalk)
    61 __PF(AARP,aarp)
    62 __PF(IPX,ipx)
    63 __PF(IPV6,ipv6)
    64 #ifdef ETH_P_PPP_DISC
    65 __PF(PPP_DISC,ppp_disc)
    66 #endif
    67 #ifdef ETH_P_PPP_SES
    68 __PF(PPP_SES,ppp_ses)
    69 #endif
    70 #ifdef ETH_P_ATMMPOA
    71 __PF(ATMMPOA,atmmpoa)
    72 #endif
    73 #ifdef ETH_P_ATMFATE
    74 __PF(ATMFATE,atmfate)
    75 #endif
    76
    77 __PF(802_3,802_3)
    78 __PF(AX25,ax25)
    79 __PF(ALL,all)
    80 __PF(802_2,802_2)
    81 __PF(SNAP,snap)
    82 __PF(DDCMP,ddcmp)
    83 __PF(WAN_PPP,wan_ppp)
    84 __PF(PPP_MP,ppp_mp)
    85 __PF(LOCALTALK,localtalk)
    86 __PF(PPPTALK,ppptalk)
    87 __PF(TR_802_2,tr_802_2)
    88 __PF(MOBITEX,mobitex)
    89 __PF(CONTROL,control)
    90 __PF(IRDA,irda)
    91 #ifdef ETH_P_ECONET
    92 __PF(ECONET,econet)
    93 #endif
    94
    95 { 0x8100, "802.1Q" },
    96 { ETH_P_IP, "ipv4" },
    97 };
    98 #undef __PF
    99
    100
    101 const char* FAST_FUNC ll_proto_n2a(unsigned short id, char *buf, int len)
    102 {
    103 unsigned i;
    104 id = ntohs(id);
    105 for (i = 0; i < ARRAY_SIZE(llproto_names); i++) {
    106 if (llproto_names[i].id == id)
    107 return llproto_names[i].name;
    108 }
    109 snprintf(buf, len, "[%d]", id);
    110 return buf;
    111 }
    112
    113 int FAST_FUNC ll_proto_a2n(unsigned short *id, char *buf)
    114 {
    115 unsigned i;
    116 for (i = 0; i < ARRAY_SIZE(llproto_names); i++) {
    117 if (strcasecmp(llproto_names[i].name, buf) == 0) {
    118 i = llproto_names[i].id;
    119 goto good;
    120 }
    121 }
    122 i = bb_strtou(buf, NULL, 0);
    123 if (errno || i > 0xffff)
    124 return -1;
    125 good:
    126 *id = htons(i);
    127 return 0;
    128 }
    129