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13#include "libbb.h"
14#include "rt_names.h"
15
16
17#define rtnl_tab_initialize(file, tab, size) rtnl_tab_initialize(file, tab)
18#define size 256
19static void rtnl_tab_initialize(const char *file, const char **tab, int size)
20{
21 char *token[2];
22 parser_t *parser = config_open2(file, fopen_for_read);
23 while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL)) {
24 int id = bb_strtou(token[0], NULL, 0);
25 if (id < 0 || id > size) {
26 bb_error_msg("database %s is corrupted at line %d",
27 file, parser->lineno);
28 break;
29 }
30 tab[id] = xstrdup(token[1]);
31 }
32 config_close(parser);
33}
34#undef size
35
36static const char **rtnl_rtprot_tab;
37
38static void rtnl_rtprot_initialize(void)
39{
40 static const char *const init_tab[] = {
41 "none",
42 "redirect",
43 "kernel",
44 "boot",
45 "static",
46 NULL,
47 NULL,
48 NULL,
49 "gated",
50 "ra",
51 "mrt",
52 "zebra",
53 "bird",
54 };
55 if (rtnl_rtprot_tab) return;
56 rtnl_rtprot_tab = xzalloc(256 * sizeof(rtnl_rtprot_tab[0]));
57 memcpy(rtnl_rtprot_tab, init_tab, sizeof(init_tab));
58 rtnl_tab_initialize("/etc/iproute2/rt_protos",
59 rtnl_rtprot_tab, 256);
60}
61
62
63const char* rtnl_rtprot_n2a(int id, char *buf, int len)
64{
65 if (id < 0 || id >= 256) {
66 snprintf(buf, len, "%d", id);
67 return buf;
68 }
69
70 rtnl_rtprot_initialize();
71
72 if (rtnl_rtprot_tab[id])
73 return rtnl_rtprot_tab[id];
74 snprintf(buf, len, "%d", id);
75 return buf;
76}
77
78int rtnl_rtprot_a2n(uint32_t *id, char *arg)
79{
80 static const char *cache = NULL;
81 static unsigned long res;
82 int i;
83
84 if (cache && strcmp(cache, arg) == 0) {
85 *id = res;
86 return 0;
87 }
88
89 rtnl_rtprot_initialize();
90
91 for (i = 0; i < 256; i++) {
92 if (rtnl_rtprot_tab[i] &&
93 strcmp(rtnl_rtprot_tab[i], arg) == 0) {
94 cache = rtnl_rtprot_tab[i];
95 res = i;
96 *id = res;
97 return 0;
98 }
99 }
100
101 res = bb_strtoul(arg, NULL, 0);
102 if (errno || res > 255)
103 return -1;
104 *id = res;
105 return 0;
106}
107
108
109static const char **rtnl_rtscope_tab;
110
111static void rtnl_rtscope_initialize(void)
112{
113 if (rtnl_rtscope_tab) return;
114 rtnl_rtscope_tab = xzalloc(256 * sizeof(rtnl_rtscope_tab[0]));
115 rtnl_rtscope_tab[0] = "global";
116 rtnl_rtscope_tab[255] = "nowhere";
117 rtnl_rtscope_tab[254] = "host";
118 rtnl_rtscope_tab[253] = "link";
119 rtnl_rtscope_tab[200] = "site";
120 rtnl_tab_initialize("/etc/iproute2/rt_scopes",
121 rtnl_rtscope_tab, 256);
122}
123
124
125const char* rtnl_rtscope_n2a(int id, char *buf, int len)
126{
127 if (id < 0 || id >= 256) {
128 snprintf(buf, len, "%d", id);
129 return buf;
130 }
131
132 rtnl_rtscope_initialize();
133
134 if (rtnl_rtscope_tab[id])
135 return rtnl_rtscope_tab[id];
136 snprintf(buf, len, "%d", id);
137 return buf;
138}
139
140int rtnl_rtscope_a2n(uint32_t *id, char *arg)
141{
142 static const char *cache = NULL;
143 static unsigned long res;
144 int i;
145
146 if (cache && strcmp(cache, arg) == 0) {
147 *id = res;
148 return 0;
149 }
150
151 rtnl_rtscope_initialize();
152
153 for (i = 0; i < 256; i++) {
154 if (rtnl_rtscope_tab[i] &&
155 strcmp(rtnl_rtscope_tab[i], arg) == 0) {
156 cache = rtnl_rtscope_tab[i];
157 res = i;
158 *id = res;
159 return 0;
160 }
161 }
162
163 res = bb_strtoul(arg, NULL, 0);
164 if (errno || res > 255)
165 return -1;
166 *id = res;
167 return 0;
168}
169
170
171static const char **rtnl_rtrealm_tab;
172
173static void rtnl_rtrealm_initialize(void)
174{
175 if (rtnl_rtrealm_tab) return;
176 rtnl_rtrealm_tab = xzalloc(256 * sizeof(rtnl_rtrealm_tab[0]));
177 rtnl_rtrealm_tab[0] = "unknown";
178 rtnl_tab_initialize("/etc/iproute2/rt_realms",
179 rtnl_rtrealm_tab, 256);
180}
181
182
183int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
184{
185 static const char *cache = NULL;
186 static unsigned long res;
187 int i;
188
189 if (cache && strcmp(cache, arg) == 0) {
190 *id = res;
191 return 0;
192 }
193
194 rtnl_rtrealm_initialize();
195
196 for (i = 0; i < 256; i++) {
197 if (rtnl_rtrealm_tab[i] &&
198 strcmp(rtnl_rtrealm_tab[i], arg) == 0) {
199 cache = rtnl_rtrealm_tab[i];
200 res = i;
201 *id = res;
202 return 0;
203 }
204 }
205
206 res = bb_strtoul(arg, NULL, 0);
207 if (errno || res > 255)
208 return -1;
209 *id = res;
210 return 0;
211}
212
213#if ENABLE_FEATURE_IP_RULE
214const char* rtnl_rtrealm_n2a(int id, char *buf, int len)
215{
216 if (id < 0 || id >= 256) {
217 snprintf(buf, len, "%d", id);
218 return buf;
219 }
220
221 rtnl_rtrealm_initialize();
222
223 if (rtnl_rtrealm_tab[id])
224 return rtnl_rtrealm_tab[id];
225 snprintf(buf, len, "%d", id);
226 return buf;
227}
228#endif
229
230
231static const char **rtnl_rtdsfield_tab;
232
233static void rtnl_rtdsfield_initialize(void)
234{
235 if (rtnl_rtdsfield_tab) return;
236 rtnl_rtdsfield_tab = xzalloc(256 * sizeof(rtnl_rtdsfield_tab[0]));
237 rtnl_rtdsfield_tab[0] = "0";
238 rtnl_tab_initialize("/etc/iproute2/rt_dsfield",
239 rtnl_rtdsfield_tab, 256);
240}
241
242
243const char * rtnl_dsfield_n2a(int id, char *buf, int len)
244{
245 if (id < 0 || id >= 256) {
246 snprintf(buf, len, "%d", id);
247 return buf;
248 }
249
250 rtnl_rtdsfield_initialize();
251
252 if (rtnl_rtdsfield_tab[id])
253 return rtnl_rtdsfield_tab[id];
254 snprintf(buf, len, "0x%02x", id);
255 return buf;
256}
257
258
259int rtnl_dsfield_a2n(uint32_t *id, char *arg)
260{
261 static const char *cache = NULL;
262 static unsigned long res;
263 int i;
264
265 if (cache && strcmp(cache, arg) == 0) {
266 *id = res;
267 return 0;
268 }
269
270 rtnl_rtdsfield_initialize();
271
272 for (i = 0; i < 256; i++) {
273 if (rtnl_rtdsfield_tab[i] &&
274 strcmp(rtnl_rtdsfield_tab[i], arg) == 0) {
275 cache = rtnl_rtdsfield_tab[i];
276 res = i;
277 *id = res;
278 return 0;
279 }
280 }
281
282 res = bb_strtoul(arg, NULL, 16);
283 if (errno || res > 255)
284 return -1;
285 *id = res;
286 return 0;
287}
288
289
290#if ENABLE_FEATURE_IP_RULE
291static const char **rtnl_rttable_tab;
292
293static void rtnl_rttable_initialize(void)
294{
295 if (rtnl_rtdsfield_tab) return;
296 rtnl_rttable_tab = xzalloc(256 * sizeof(rtnl_rttable_tab[0]));
297 rtnl_rttable_tab[0] = "unspec";
298 rtnl_rttable_tab[255] = "local";
299 rtnl_rttable_tab[254] = "main";
300 rtnl_rttable_tab[253] = "default";
301 rtnl_tab_initialize("/etc/iproute2/rt_tables", rtnl_rttable_tab, 256);
302}
303
304
305const char *rtnl_rttable_n2a(int id, char *buf, int len)
306{
307 if (id < 0 || id >= 256) {
308 snprintf(buf, len, "%d", id);
309 return buf;
310 }
311
312 rtnl_rttable_initialize();
313
314 if (rtnl_rttable_tab[id])
315 return rtnl_rttable_tab[id];
316 snprintf(buf, len, "%d", id);
317 return buf;
318}
319
320int rtnl_rttable_a2n(uint32_t * id, char *arg)
321{
322 static char *cache = NULL;
323 static unsigned long res;
324 int i;
325
326 if (cache && strcmp(cache, arg) == 0) {
327 *id = res;
328 return 0;
329 }
330
331 rtnl_rttable_initialize();
332
333 for (i = 0; i < 256; i++) {
334 if (rtnl_rttable_tab[i] && strcmp(rtnl_rttable_tab[i], arg) == 0) {
335 cache = (char*)rtnl_rttable_tab[i];
336 res = i;
337 *id = res;
338 return 0;
339 }
340 }
341
342 i = bb_strtoul(arg, NULL, 0);
343 if (errno || i > 255)
344 return -1;
345 *id = i;
346 return 0;
347}
348
349#endif
350
