"Robert P. J. Day" | 63fc1a9 | 2006-07-02 19:47:05 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 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 | |
Denis Vlasenko | 9a7d38f | 2007-05-31 22:42:12 +0000 | [diff] [blame] | 14 | #include "libbb.h" |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 15 | #include "rt_names.h" |
| 16 | #include "utils.h" |
| 17 | |
Denis Vlasenko | 322661d | 2007-01-29 23:43:52 +0000 | [diff] [blame] | 18 | const char *rtnl_rtntype_n2a(int id, char *buf, int len) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 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 | snprintf(buf, len, "%d", id); |
| 47 | return buf; |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | |
| 52 | int rtnl_rtntype_a2n(int *id, char *arg) |
| 53 | { |
Denis Vlasenko | 990d0f6 | 2007-07-24 15:54:42 +0000 | [diff] [blame] | 54 | static const char keywords[] = |
| 55 | "local\0""nat\0""broadcast\0""brd\0""anycast\0" |
| 56 | "multicast\0""prohibit\0""unreachable\0""blackhole\0" |
| 57 | "xresolve\0""unicast\0""throw\0"; |
| 58 | enum { |
| 59 | ARG_local = 1, ARG_nat, ARG_broadcast, ARG_brd, ARG_anycast, |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 60 | ARG_multicast, ARG_prohibit, ARG_unreachable, ARG_blackhole, |
| 61 | ARG_xresolve, ARG_unicast, ARG_throw |
| 62 | }; |
Denis Vlasenko | 990d0f6 | 2007-07-24 15:54:42 +0000 | [diff] [blame] | 63 | const smalluint key = index_in_substrings(keywords, arg) + 1; |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 64 | char *end; |
| 65 | unsigned long res; |
| 66 | |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 67 | if (key == ARG_local) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 68 | res = RTN_LOCAL; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 69 | else if (key == ARG_nat) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 70 | res = RTN_NAT; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 71 | else if (key == ARG_broadcast || key == ARG_brd) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 72 | res = RTN_BROADCAST; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 73 | else if (key == ARG_anycast) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 74 | res = RTN_ANYCAST; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 75 | else if (key == ARG_multicast) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 76 | res = RTN_MULTICAST; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 77 | else if (key == ARG_prohibit) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 78 | res = RTN_PROHIBIT; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 79 | else if (key == ARG_unreachable) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 80 | res = RTN_UNREACHABLE; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 81 | else if (key == ARG_blackhole) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 82 | res = RTN_BLACKHOLE; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 83 | else if (key == ARG_xresolve) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 84 | res = RTN_XRESOLVE; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 85 | else if (key == ARG_unicast) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 86 | res = RTN_UNICAST; |
Bernhard Reutner-Fischer | 789b87e | 2007-06-21 10:20:13 +0000 | [diff] [blame] | 87 | else if (key == ARG_throw) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 88 | res = RTN_THROW; |
| 89 | else { |
| 90 | res = strtoul(arg, &end, 0); |
| 91 | if (!end || end == arg || *end || res > 255) |
| 92 | return -1; |
| 93 | } |
| 94 | *id = res; |
| 95 | return 0; |
| 96 | } |
| 97 | |
Denis Vlasenko | 98ee06d | 2006-12-31 18:57:37 +0000 | [diff] [blame] | 98 | int get_rt_realms(uint32_t *realms, char *arg) |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 99 | { |
Denis Vlasenko | 98ee06d | 2006-12-31 18:57:37 +0000 | [diff] [blame] | 100 | uint32_t realm = 0; |
Glenn L McGrath | 9a2d272 | 2002-11-10 01:33:55 +0000 | [diff] [blame] | 101 | char *p = strchr(arg, '/'); |
| 102 | |
| 103 | *realms = 0; |
| 104 | if (p) { |
| 105 | *p = 0; |
| 106 | if (rtnl_rtrealm_a2n(realms, arg)) { |
| 107 | *p = '/'; |
| 108 | return -1; |
| 109 | } |
| 110 | *realms <<= 16; |
| 111 | *p = '/'; |
| 112 | arg = p+1; |
| 113 | } |
| 114 | if (*arg && rtnl_rtrealm_a2n(&realm, arg)) |
| 115 | return -1; |
| 116 | *realms |= realm; |
| 117 | return 0; |
| 118 | } |