1 /* vi: set sw=4 ts=4: */
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License
5 * as published by the Free Software Foundation; either version
6 * 2 of the License, or (at your option) any later version.
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
13 typedef struct rtnl_tab_t {
14 const char *cached_str;
15 unsigned cached_result;
19 static void rtnl_tab_initialize(const char *file, const char **tab)
22 parser_t *parser = config_open2(file, fopen_for_read);
24 while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL)) {
25 unsigned id = bb_strtou(token[0], NULL, 0);
27 bb_error_msg("database %s is corrupted at line %d",
28 file, parser->lineno);
31 tab[id] = xstrdup(token[1]);
36 static int rtnl_a2n(rtnl_tab_t *tab, uint32_t *id, const char *arg, int base)
40 if (tab->cached_str && strcmp(tab->cached_str, arg) == 0) {
41 *id = tab->cached_result;
45 for (i = 0; i < 256; i++) {
47 && strcmp(tab->tab[i], arg) == 0
49 tab->cached_str = tab->tab[i];
50 tab->cached_result = i;
56 i = bb_strtou(arg, NULL, base);
64 static rtnl_tab_t *rtnl_rtprot_tab;
66 static void rtnl_rtprot_initialize(void)
68 static const char *const init_tab[] = {
86 rtnl_rtprot_tab = xzalloc(sizeof(*rtnl_rtprot_tab));
87 memcpy(rtnl_rtprot_tab->tab, init_tab, sizeof(init_tab));
88 rtnl_tab_initialize("/etc/iproute2/rt_protos", rtnl_rtprot_tab->tab);
92 const char* FAST_FUNC rtnl_rtprot_n2a(int id)
94 if (id < 0 || id >= 256) {
98 rtnl_rtprot_initialize();
100 if (rtnl_rtprot_tab->tab[id])
101 return rtnl_rtprot_tab->tab[id];
106 int FAST_FUNC rtnl_rtprot_a2n(uint32_t *id, char *arg)
108 rtnl_rtprot_initialize();
109 return rtnl_a2n(rtnl_rtprot_tab, id, arg, 0);
113 static rtnl_tab_t *rtnl_rtscope_tab;
115 static void rtnl_rtscope_initialize(void)
117 if (rtnl_rtscope_tab)
119 rtnl_rtscope_tab = xzalloc(sizeof(*rtnl_rtscope_tab));
120 rtnl_rtscope_tab->tab[0] = "global";
121 rtnl_rtscope_tab->tab[255] = "nowhere";
122 rtnl_rtscope_tab->tab[254] = "host";
123 rtnl_rtscope_tab->tab[253] = "link";
124 rtnl_rtscope_tab->tab[200] = "site";
125 rtnl_tab_initialize("/etc/iproute2/rt_scopes", rtnl_rtscope_tab->tab);
128 const char* FAST_FUNC rtnl_rtscope_n2a(int id)
130 if (id < 0 || id >= 256) {
134 rtnl_rtscope_initialize();
136 if (rtnl_rtscope_tab->tab[id])
137 return rtnl_rtscope_tab->tab[id];
141 int FAST_FUNC rtnl_rtscope_a2n(uint32_t *id, char *arg)
143 rtnl_rtscope_initialize();
144 return rtnl_a2n(rtnl_rtscope_tab, id, arg, 0);
148 static rtnl_tab_t *rtnl_rtrealm_tab;
150 static void rtnl_rtrealm_initialize(void)
152 if (rtnl_rtrealm_tab) return;
153 rtnl_rtrealm_tab = xzalloc(sizeof(*rtnl_rtrealm_tab));
154 rtnl_rtrealm_tab->tab[0] = "unknown";
155 rtnl_tab_initialize("/etc/iproute2/rt_realms", rtnl_rtrealm_tab->tab);
158 int FAST_FUNC rtnl_rtrealm_a2n(uint32_t *id, char *arg)
160 rtnl_rtrealm_initialize();
161 return rtnl_a2n(rtnl_rtrealm_tab, id, arg, 0);
164 #if ENABLE_FEATURE_IP_RULE
165 const char* FAST_FUNC rtnl_rtrealm_n2a(int id)
167 if (id < 0 || id >= 256) {
171 rtnl_rtrealm_initialize();
173 if (rtnl_rtrealm_tab->tab[id])
174 return rtnl_rtrealm_tab->tab[id];
180 static rtnl_tab_t *rtnl_rtdsfield_tab;
182 static void rtnl_rtdsfield_initialize(void)
184 if (rtnl_rtdsfield_tab) return;
185 rtnl_rtdsfield_tab = xzalloc(sizeof(*rtnl_rtdsfield_tab));
186 rtnl_rtdsfield_tab->tab[0] = "0";
187 rtnl_tab_initialize("/etc/iproute2/rt_dsfield", rtnl_rtdsfield_tab->tab);
190 const char* FAST_FUNC rtnl_dsfield_n2a(int id)
192 if (id < 0 || id >= 256) {
196 rtnl_rtdsfield_initialize();
198 if (rtnl_rtdsfield_tab->tab[id])
199 return rtnl_rtdsfield_tab->tab[id];
203 int FAST_FUNC rtnl_dsfield_a2n(uint32_t *id, char *arg)
205 rtnl_rtdsfield_initialize();
206 return rtnl_a2n(rtnl_rtdsfield_tab, id, arg, 16);
210 #if ENABLE_FEATURE_IP_RULE
211 static rtnl_tab_t *rtnl_rttable_tab;
213 static void rtnl_rttable_initialize(void)
215 if (rtnl_rtdsfield_tab) return;
216 rtnl_rttable_tab = xzalloc(sizeof(*rtnl_rttable_tab));
217 rtnl_rttable_tab->tab[0] = "unspec";
218 rtnl_rttable_tab->tab[255] = "local";
219 rtnl_rttable_tab->tab[254] = "main";
220 rtnl_rttable_tab->tab[253] = "default";
221 rtnl_tab_initialize("/etc/iproute2/rt_tables", rtnl_rttable_tab->tab);
224 const char* FAST_FUNC rtnl_rttable_n2a(int id)
226 if (id < 0 || id >= 256) {
230 rtnl_rttable_initialize();
232 if (rtnl_rttable_tab->tab[id])
233 return rtnl_rttable_tab->tab[id];
237 int FAST_FUNC rtnl_rttable_a2n(uint32_t *id, char *arg)
239 rtnl_rttable_initialize();
240 return rtnl_a2n(rtnl_rttable_tab, id, arg, 0);