blob: 96b2d1791bb6be09227ccf17d916981f7f4e2125 [file] [log] [blame]
"Robert P. J. Day"63fc1a92006-07-02 19:47:05 +00001/* vi: set sw=4 ts=4: */
Glenn L McGrath9a2d2722002-11-10 01:33:55 +00002/*
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 Vlasenko9a7d38f2007-05-31 22:42:12 +000014#include "libbb.h"
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000015#include "rt_names.h"
16#include "utils.h"
17
Denis Vlasenko322661d2007-01-29 23:43:52 +000018const char *rtnl_rtntype_n2a(int id, char *buf, int len)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000019{
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
52int rtnl_rtntype_a2n(int *id, char *arg)
53{
Denis Vlasenko990d0f62007-07-24 15:54:42 +000054 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-Fischer789b87e2007-06-21 10:20:13 +000060 ARG_multicast, ARG_prohibit, ARG_unreachable, ARG_blackhole,
61 ARG_xresolve, ARG_unicast, ARG_throw
62 };
Denis Vlasenko990d0f62007-07-24 15:54:42 +000063 const smalluint key = index_in_substrings(keywords, arg) + 1;
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000064 char *end;
65 unsigned long res;
66
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000067 if (key == ARG_local)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000068 res = RTN_LOCAL;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000069 else if (key == ARG_nat)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000070 res = RTN_NAT;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000071 else if (key == ARG_broadcast || key == ARG_brd)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000072 res = RTN_BROADCAST;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000073 else if (key == ARG_anycast)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000074 res = RTN_ANYCAST;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000075 else if (key == ARG_multicast)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000076 res = RTN_MULTICAST;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000077 else if (key == ARG_prohibit)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000078 res = RTN_PROHIBIT;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000079 else if (key == ARG_unreachable)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000080 res = RTN_UNREACHABLE;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000081 else if (key == ARG_blackhole)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000082 res = RTN_BLACKHOLE;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000083 else if (key == ARG_xresolve)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000084 res = RTN_XRESOLVE;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000085 else if (key == ARG_unicast)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000086 res = RTN_UNICAST;
Bernhard Reutner-Fischer789b87e2007-06-21 10:20:13 +000087 else if (key == ARG_throw)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000088 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 Vlasenko98ee06d2006-12-31 18:57:37 +000098int get_rt_realms(uint32_t *realms, char *arg)
Glenn L McGrath9a2d2722002-11-10 01:33:55 +000099{
Denis Vlasenko98ee06d2006-12-31 18:57:37 +0000100 uint32_t realm = 0;
Glenn L McGrath9a2d2722002-11-10 01:33:55 +0000101 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}