1 /* 2 * ll_proto.c 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 7 * 2 of the License, or (at your option) any later version. 8 * 9 * Authors: Alexey Kuznetsov, <kuznet (at) ms2.inr.ac.ru> 10 */ 11 12 #include <stdio.h> 13 #include <stdlib.h> 14 #include <unistd.h> 15 #include <syslog.h> 16 #include <fcntl.h> 17 #include <sys/ioctl.h> 18 #include <sys/socket.h> 19 #include <sys/ioctl.h> 20 #include <netinet/in.h> 21 #include <arpa/inet.h> 22 #include <string.h> 23 24 #include <linux/netdevice.h> 25 #include <linux/if_arp.h> 26 #include <linux/sockios.h> 27 28 #include "utils.h" 29 #include "rt_names.h" 30 31 32 #define __PF(f,n) { ETH_P_##f, #n }, 33 static struct { 34 int id; 35 const char *name; 36 } llproto_names[] = { 37 __PF(LOOP,loop) 38 __PF(PUP,pup) 39 #ifdef ETH_P_PUPAT 40 __PF(PUPAT,pupat) 41 #endif 42 __PF(IP,ip) 43 __PF(X25,x25) 44 __PF(ARP,arp) 45 __PF(BPQ,bpq) 46 #ifdef ETH_P_IEEEPUP 47 __PF(IEEEPUP,ieeepup) 48 #endif 49 #ifdef ETH_P_IEEEPUPAT 50 __PF(IEEEPUPAT,ieeepupat) 51 #endif 52 __PF(DEC,dec) 53 __PF(DNA_DL,dna_dl) 54 __PF(DNA_RC,dna_rc) 55 __PF(DNA_RT,dna_rt) 56 __PF(LAT,lat) 57 __PF(DIAG,diag) 58 __PF(CUST,cust) 59 __PF(SCA,sca) 60 __PF(RARP,rarp) 61 __PF(ATALK,atalk) 62 __PF(AARP,aarp) 63 __PF(IPX,ipx) 64 __PF(IPV6,ipv6) 65 #ifdef ETH_P_PPP_DISC 66 __PF(PPP_DISC,ppp_disc) 67 #endif 68 #ifdef ETH_P_PPP_SES 69 __PF(PPP_SES,ppp_ses) 70 #endif 71 #ifdef ETH_P_ATMMPOA 72 __PF(ATMMPOA,atmmpoa) 73 #endif 74 #ifdef ETH_P_ATMFATE 75 __PF(ATMFATE,atmfate) 76 #endif 77 78 __PF(802_3,802_3) 79 __PF(AX25,ax25) 80 __PF(ALL,all) 81 __PF(802_2,802_2) 82 __PF(SNAP,snap) 83 __PF(DDCMP,ddcmp) 84 __PF(WAN_PPP,wan_ppp) 85 __PF(PPP_MP,ppp_mp) 86 __PF(LOCALTALK,localtalk) 87 __PF(CAN,can) 88 __PF(PPPTALK,ppptalk) 89 __PF(TR_802_2,tr_802_2) 90 __PF(MOBITEX,mobitex) 91 __PF(CONTROL,control) 92 __PF(IRDA,irda) 93 #ifdef ETH_P_ECONET 94 __PF(ECONET,econet) 95 #endif 96 __PF(TIPC,tipc) 97 __PF(AOE,aoe) 98 99 { 0x8100, "802.1Q" }, 100 { ETH_P_IP, "ipv4" }, 101 }; 102 #undef __PF 103 104 105 const char * ll_proto_n2a(unsigned short id, char *buf, int len) 106 { 107 int i; 108 109 id = ntohs(id); 110 111 for (i=0; i<sizeof(llproto_names)/sizeof(llproto_names[0]); i++) { 112 if (llproto_names[i].id == id) 113 return llproto_names[i].name; 114 } 115 snprintf(buf, len, "[%d]", id); 116 return buf; 117 } 118 119 int ll_proto_a2n(unsigned short *id, char *buf) 120 { 121 int i; 122 for (i=0; i<sizeof(llproto_names)/sizeof(llproto_names[0]); i++) { 123 if (strcasecmp(llproto_names[i].name, buf) == 0) { 124 *id = htons(llproto_names[i].id); 125 return 0; 126 } 127 } 128 if (get_u16(id, buf, 0)) 129 return -1; 130 *id = htons(*id); 131 return 0; 132 } 133
