source: mainline/uspace/lib/c/generic/inetcfg.c@ 02a09ed

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 02a09ed was 02a09ed, checked in by Martin Decky <martin@…>, 12 years ago

add basic infrastructure for IPv6 (inactive)
make inet_addr_t a universal address type
  • Property mode set to 100644
File size: 10.1 KB
Line 
1/*
2 * Copyright (c) 2012 Jiri Svoboda
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <async.h>
30#include <assert.h>
31#include <errno.h>
32#include <inet/inetcfg.h>
33#include <ipc/inet.h>
34#include <ipc/services.h>
35#include <loc.h>
36#include <stdlib.h>
37#include <str.h>
38
39static async_sess_t *inetcfg_sess = NULL;
40
41static int inetcfg_get_ids_once(sysarg_t method, sysarg_t arg1,
42 sysarg_t *id_buf, size_t buf_size, size_t *act_size)
43{
44 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
45
46 ipc_call_t answer;
47 aid_t req = async_send_1(exch, method, arg1, &answer);
48 int rc = async_data_read_start(exch, id_buf, buf_size);
49
50 async_exchange_end(exch);
51
52 if (rc != EOK) {
53 async_forget(req);
54 return rc;
55 }
56
57 sysarg_t retval;
58 async_wait_for(req, &retval);
59
60 if (retval != EOK) {
61 return retval;
62 }
63
64 *act_size = IPC_GET_ARG1(answer);
65 return EOK;
66}
67
68/** Get list of IDs.
69 *
70 * Returns an allocated array of service IDs.
71 *
72 * @param method IPC method
73 * @param arg1 IPC argument 1
74 * @param data Place to store pointer to array of IDs
75 * @param count Place to store number of IDs
76 * @return EOK on success or negative error code
77 */
78static int inetcfg_get_ids_internal(sysarg_t method, sysarg_t arg1,
79 sysarg_t **data, size_t *count)
80{
81 *data = NULL;
82 *count = 0;
83
84 size_t act_size = 0;
85 int rc = inetcfg_get_ids_once(method, arg1, NULL, 0,
86 &act_size);
87 if (rc != EOK)
88 return rc;
89
90 size_t alloc_size = act_size;
91 service_id_t *ids = malloc(alloc_size);
92 if (ids == NULL)
93 return ENOMEM;
94
95 while (true) {
96 rc = inetcfg_get_ids_once(method, arg1, ids, alloc_size,
97 &act_size);
98 if (rc != EOK)
99 return rc;
100
101 if (act_size <= alloc_size)
102 break;
103
104 alloc_size = act_size;
105 ids = realloc(ids, alloc_size);
106 if (ids == NULL)
107 return ENOMEM;
108 }
109
110 *count = act_size / sizeof(sysarg_t);
111 *data = ids;
112 return EOK;
113}
114
115int inetcfg_init(void)
116{
117 service_id_t inet_svc;
118 int rc;
119
120 assert(inetcfg_sess == NULL);
121
122 rc = loc_service_get_id(SERVICE_NAME_INETCFG, &inet_svc,
123 IPC_FLAG_BLOCKING);
124 if (rc != EOK)
125 return ENOENT;
126
127 inetcfg_sess = loc_service_connect(EXCHANGE_SERIALIZE, inet_svc,
128 IPC_FLAG_BLOCKING);
129 if (inetcfg_sess == NULL)
130 return ENOENT;
131
132 return EOK;
133}
134
135int inetcfg_addr_create_static(const char *name, inet_naddr_t *naddr,
136 sysarg_t link_id, sysarg_t *addr_id)
137{
138 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
139
140 ipc_call_t answer;
141 aid_t req = async_send_1(exch, INETCFG_ADDR_CREATE_STATIC, link_id,
142 &answer);
143
144 int rc = async_data_write_start(exch, naddr, sizeof(inet_naddr_t));
145 if (rc != EOK) {
146 async_exchange_end(exch);
147 async_forget(req);
148 return rc;
149 }
150
151 rc = async_data_write_start(exch, name, str_size(name));
152
153 async_exchange_end(exch);
154
155 if (rc != EOK) {
156 async_forget(req);
157 return rc;
158 }
159
160 sysarg_t retval;
161 async_wait_for(req, &retval);
162
163 *addr_id = IPC_GET_ARG1(answer);
164
165 return (int) retval;
166}
167
168int inetcfg_addr_delete(sysarg_t addr_id)
169{
170 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
171
172 int rc = async_req_1_0(exch, INETCFG_ADDR_DELETE, addr_id);
173 async_exchange_end(exch);
174
175 return rc;
176}
177
178int inetcfg_addr_get(sysarg_t addr_id, inet_addr_info_t *ainfo)
179{
180 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
181
182 ipc_call_t answer;
183 aid_t req = async_send_1(exch, INETCFG_ADDR_GET, addr_id, &answer);
184
185 ipc_call_t answer_naddr;
186 aid_t req_naddr = async_data_read(exch, &ainfo->naddr,
187 sizeof(inet_naddr_t), &answer_naddr);
188
189 sysarg_t retval_naddr;
190 async_wait_for(req_naddr, &retval_naddr);
191
192 if (retval_naddr != EOK) {
193 async_exchange_end(exch);
194 async_forget(req);
195 return (int) retval_naddr;
196 }
197
198 ipc_call_t answer_name;
199 char name_buf[LOC_NAME_MAXLEN + 1];
200 aid_t req_name = async_data_read(exch, name_buf, LOC_NAME_MAXLEN,
201 &answer_name);
202
203 async_exchange_end(exch);
204
205 sysarg_t retval_name;
206 async_wait_for(req_name, &retval_name);
207
208 if (retval_name != EOK) {
209 async_forget(req);
210 return (int) retval_name;
211 }
212
213 sysarg_t retval;
214 async_wait_for(req, &retval);
215
216 if (retval != EOK)
217 return (int) retval;
218
219 size_t act_size = IPC_GET_ARG2(answer_name);
220 assert(act_size <= LOC_NAME_MAXLEN);
221
222 name_buf[act_size] = '\0';
223
224 ainfo->ilink = IPC_GET_ARG1(answer);
225 ainfo->name = str_dup(name_buf);
226
227 return EOK;
228}
229
230int inetcfg_addr_get_id(const char *name, sysarg_t link_id, sysarg_t *addr_id)
231{
232 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
233
234 ipc_call_t answer;
235 aid_t req = async_send_1(exch, INETCFG_ADDR_GET_ID, link_id, &answer);
236 sysarg_t retval = async_data_write_start(exch, name, str_size(name));
237
238 async_exchange_end(exch);
239
240 if (retval != EOK) {
241 async_forget(req);
242 return retval;
243 }
244
245 async_wait_for(req, &retval);
246 *addr_id = IPC_GET_ARG1(answer);
247
248 return retval;
249}
250
251int inetcfg_get_addr_list(sysarg_t **addrs, size_t *count)
252{
253 return inetcfg_get_ids_internal(INETCFG_GET_ADDR_LIST,
254 0, addrs, count);
255}
256
257int inetcfg_get_link_list(sysarg_t **links, size_t *count)
258{
259 return inetcfg_get_ids_internal(INETCFG_GET_LINK_LIST,
260 0, links, count);
261}
262
263int inetcfg_get_sroute_list(sysarg_t **sroutes, size_t *count)
264{
265 return inetcfg_get_ids_internal(INETCFG_GET_SROUTE_LIST,
266 0, sroutes, count);
267}
268
269int inetcfg_link_get(sysarg_t link_id, inet_link_info_t *linfo)
270{
271 ipc_call_t dreply;
272 sysarg_t dretval;
273 size_t act_size;
274 char name_buf[LOC_NAME_MAXLEN + 1];
275
276 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
277
278 ipc_call_t answer;
279 aid_t req = async_send_1(exch, INETCFG_LINK_GET, link_id, &answer);
280 aid_t dreq = async_data_read(exch, name_buf, LOC_NAME_MAXLEN, &dreply);
281 async_wait_for(dreq, &dretval);
282
283 async_exchange_end(exch);
284
285 if (dretval != EOK) {
286 async_forget(req);
287 return dretval;
288 }
289
290 sysarg_t retval;
291 async_wait_for(req, &retval);
292
293 if (retval != EOK)
294 return retval;
295
296 act_size = IPC_GET_ARG2(dreply);
297 assert(act_size <= LOC_NAME_MAXLEN);
298 name_buf[act_size] = '\0';
299
300 linfo->name = str_dup(name_buf);
301 linfo->def_mtu = IPC_GET_ARG1(answer);
302
303 return EOK;
304}
305
306int inetcfg_sroute_create(const char *name, inet_naddr_t *dest,
307 inet_addr_t *router, sysarg_t *sroute_id)
308{
309 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
310
311 ipc_call_t answer;
312 aid_t req = async_send_0(exch, INETCFG_SROUTE_CREATE, &answer);
313
314 int rc = async_data_write_start(exch, dest, sizeof(inet_naddr_t));
315 if (rc != EOK) {
316 async_exchange_end(exch);
317 async_forget(req);
318 return rc;
319 }
320
321 rc = async_data_write_start(exch, router, sizeof(inet_addr_t));
322 if (rc != EOK) {
323 async_exchange_end(exch);
324 async_forget(req);
325 return rc;
326 }
327
328 rc = async_data_write_start(exch, name, str_size(name));
329
330 async_exchange_end(exch);
331
332 if (rc != EOK) {
333 async_forget(req);
334 return rc;
335 }
336
337 sysarg_t retval;
338 async_wait_for(req, &retval);
339
340 *sroute_id = IPC_GET_ARG1(answer);
341
342 return (int) retval;
343}
344
345int inetcfg_sroute_delete(sysarg_t sroute_id)
346{
347 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
348
349 int rc = async_req_1_0(exch, INETCFG_SROUTE_DELETE, sroute_id);
350 async_exchange_end(exch);
351
352 return rc;
353}
354
355int inetcfg_sroute_get(sysarg_t sroute_id, inet_sroute_info_t *srinfo)
356{
357 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
358
359 ipc_call_t answer;
360 aid_t req = async_send_1(exch, INETCFG_SROUTE_GET, sroute_id, &answer);
361
362 ipc_call_t answer_dest;
363 aid_t req_dest = async_data_read(exch, &srinfo->dest,
364 sizeof(inet_naddr_t), &answer_dest);
365
366 sysarg_t retval_dest;
367 async_wait_for(req_dest, &retval_dest);
368
369 if (retval_dest != EOK) {
370 async_exchange_end(exch);
371 async_forget(req);
372 return (int) retval_dest;
373 }
374
375 ipc_call_t answer_router;
376 aid_t req_router = async_data_read(exch, &srinfo->router,
377 sizeof(inet_addr_t), &answer_router);
378
379 sysarg_t retval_router;
380 async_wait_for(req_router, &retval_router);
381
382 if (retval_router != EOK) {
383 async_exchange_end(exch);
384 async_forget(req);
385 return (int) retval_router;
386 }
387
388 ipc_call_t answer_name;
389 char name_buf[LOC_NAME_MAXLEN + 1];
390 aid_t req_name = async_data_read(exch, name_buf, LOC_NAME_MAXLEN,
391 &answer_name);
392
393 async_exchange_end(exch);
394
395 sysarg_t retval_name;
396 async_wait_for(req_name, &retval_name);
397
398 if (retval_name != EOK) {
399 async_forget(req);
400 return (int) retval_name;
401 }
402
403 sysarg_t retval;
404 async_wait_for(req, &retval);
405
406 if (retval != EOK)
407 return (int) retval;
408
409 size_t act_size = IPC_GET_ARG2(answer_name);
410 assert(act_size <= LOC_NAME_MAXLEN);
411
412 name_buf[act_size] = '\0';
413
414 srinfo->name = str_dup(name_buf);
415
416 return EOK;
417}
418
419int inetcfg_sroute_get_id(const char *name, sysarg_t *sroute_id)
420{
421 async_exch_t *exch = async_exchange_begin(inetcfg_sess);
422
423 ipc_call_t answer;
424 aid_t req = async_send_0(exch, INETCFG_SROUTE_GET_ID, &answer);
425 sysarg_t retval = async_data_write_start(exch, name, str_size(name));
426
427 async_exchange_end(exch);
428
429 if (retval != EOK) {
430 async_forget(req);
431 return retval;
432 }
433
434 async_wait_for(req, &retval);
435 *sroute_id = IPC_GET_ARG1(answer);
436
437 return retval;
438}
439
440/** @}
441 */
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