1/* vi: set sw=4 ts=4: */ 2/* 3 * rtm_map.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 14#include "libbb.h" 15#include "rt_names.h" 16#include "utils.h" 17 18const char* FAST_FUNC rtnl_rtntype_n2a(int id, char *buf) 19{ 20 switch (id) { 21 case RTN_UNSPEC: 22 return "none"; 23 case RTN_UNICAST: 24 return "unicast"; 25 case RTN_LOCAL: 26 return "local"; 27 case RTN_BROADCAST: 28 return "broadcast"; 29 case RTN_ANYCAST: 30 return "anycast"; 31 case RTN_MULTICAST: 32 return "multicast"; 33 case RTN_BLACKHOLE: 34 return "blackhole"; 35 case RTN_UNREACHABLE: 36 return "unreachable"; 37 case RTN_PROHIBIT: 38 return "prohibit"; 39 case RTN_THROW: 40 return "throw"; 41 case RTN_NAT: 42 return "nat"; 43 case RTN_XRESOLVE: 44 return "xresolve"; 45 default: 46 /* buf is SPRINT_BSIZE big */ 47 sprintf(buf, "%d", id); 48 return buf; 49 } 50} 51 52 53int FAST_FUNC rtnl_rtntype_a2n(int *id, char *arg) 54{ 55 static const char keywords[] ALIGN1 = 56 "local\0""nat\0""broadcast\0""brd\0""anycast\0" 57 "multicast\0""prohibit\0""unreachable\0""blackhole\0" 58 "xresolve\0""unicast\0""throw\0"; 59 enum { 60 ARG_local = 1, ARG_nat, ARG_broadcast, ARG_brd, ARG_anycast, 61 ARG_multicast, ARG_prohibit, ARG_unreachable, ARG_blackhole, 62 ARG_xresolve, ARG_unicast, ARG_throw 63 }; 64 const smalluint key = index_in_substrings(keywords, arg) + 1; 65 char *end; 66 unsigned long res; 67 68 if (key == ARG_local) 69 res = RTN_LOCAL; 70 else if (key == ARG_nat) 71 res = RTN_NAT; 72 else if (key == ARG_broadcast || key == ARG_brd) 73 res = RTN_BROADCAST; 74 else if (key == ARG_anycast) 75 res = RTN_ANYCAST; 76 else if (key == ARG_multicast) 77 res = RTN_MULTICAST; 78 else if (key == ARG_prohibit) 79 res = RTN_PROHIBIT; 80 else if (key == ARG_unreachable) 81 res = RTN_UNREACHABLE; 82 else if (key == ARG_blackhole) 83 res = RTN_BLACKHOLE; 84 else if (key == ARG_xresolve) 85 res = RTN_XRESOLVE; 86 else if (key == ARG_unicast) 87 res = RTN_UNICAST; 88 else if (key == ARG_throw) 89 res = RTN_THROW; 90 else { 91 res = strtoul(arg, &end, 0); 92 if (end == arg || *end || res > 255) 93 return -1; 94 } 95 *id = res; 96 return 0; 97} 98 99int FAST_FUNC get_rt_realms(uint32_t *realms, char *arg) 100{ 101 uint32_t realm = 0; 102 char *p = strchr(arg, '/'); 103 104 *realms = 0; 105 if (p) { 106 *p = 0; 107 if (rtnl_rtrealm_a2n(realms, arg)) { 108 *p = '/'; 109 return -1; 110 } 111 *realms <<= 16; 112 *p = '/'; 113 arg = p+1; 114 } 115 if (*arg && rtnl_rtrealm_a2n(&realm, arg)) 116 return -1; 117 *realms |= realm; 118 return 0; 119} 120