~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/crypto/aead.c

Version: ~ [ linux-5.3-rc5 ] ~ [ linux-5.2.9 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.67 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.139 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.189 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.189 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.72 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * AEAD: Authenticated Encryption with Associated Data
  3  *
  4  * This file provides API support for AEAD algorithms.
  5  *
  6  * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
  7  *
  8  * This program is free software; you can redistribute it and/or modify it
  9  * under the terms of the GNU General Public License as published by the Free
 10  * Software Foundation; either version 2 of the License, or (at your option)
 11  * any later version.
 12  *
 13  */
 14 
 15 #include <crypto/internal/aead.h>
 16 #include <linux/err.h>
 17 #include <linux/init.h>
 18 #include <linux/kernel.h>
 19 #include <linux/module.h>
 20 #include <linux/rtnetlink.h>
 21 #include <linux/sched.h>
 22 #include <linux/slab.h>
 23 #include <linux/seq_file.h>
 24 #include <linux/cryptouser.h>
 25 #include <net/netlink.h>
 26 
 27 #include "internal.h"
 28 
 29 static int setkey_unaligned(struct crypto_aead *tfm, const u8 *key,
 30                             unsigned int keylen)
 31 {
 32         struct aead_alg *aead = crypto_aead_alg(tfm);
 33         unsigned long alignmask = crypto_aead_alignmask(tfm);
 34         int ret;
 35         u8 *buffer, *alignbuffer;
 36         unsigned long absize;
 37 
 38         absize = keylen + alignmask;
 39         buffer = kmalloc(absize, GFP_ATOMIC);
 40         if (!buffer)
 41                 return -ENOMEM;
 42 
 43         alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
 44         memcpy(alignbuffer, key, keylen);
 45         ret = aead->setkey(tfm, alignbuffer, keylen);
 46         memset(alignbuffer, 0, keylen);
 47         kfree(buffer);
 48         return ret;
 49 }
 50 
 51 static int setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 52 {
 53         struct aead_alg *aead = crypto_aead_alg(tfm);
 54         unsigned long alignmask = crypto_aead_alignmask(tfm);
 55 
 56         if ((unsigned long)key & alignmask)
 57                 return setkey_unaligned(tfm, key, keylen);
 58 
 59         return aead->setkey(tfm, key, keylen);
 60 }
 61 
 62 int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
 63 {
 64         struct aead_tfm *crt = crypto_aead_crt(tfm);
 65         int err;
 66 
 67         if (authsize > crypto_aead_alg(tfm)->maxauthsize)
 68                 return -EINVAL;
 69 
 70         if (crypto_aead_alg(tfm)->setauthsize) {
 71                 err = crypto_aead_alg(tfm)->setauthsize(crt->base, authsize);
 72                 if (err)
 73                         return err;
 74         }
 75 
 76         crypto_aead_crt(crt->base)->authsize = authsize;
 77         crt->authsize = authsize;
 78         return 0;
 79 }
 80 EXPORT_SYMBOL_GPL(crypto_aead_setauthsize);
 81 
 82 static unsigned int crypto_aead_ctxsize(struct crypto_alg *alg, u32 type,
 83                                         u32 mask)
 84 {
 85         return alg->cra_ctxsize;
 86 }
 87 
 88 static int no_givcrypt(struct aead_givcrypt_request *req)
 89 {
 90         return -ENOSYS;
 91 }
 92 
 93 static int crypto_init_aead_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
 94 {
 95         struct aead_alg *alg = &tfm->__crt_alg->cra_aead;
 96         struct aead_tfm *crt = &tfm->crt_aead;
 97 
 98         if (max(alg->maxauthsize, alg->ivsize) > PAGE_SIZE / 8)
 99                 return -EINVAL;
100 
101         crt->setkey = tfm->__crt_alg->cra_flags & CRYPTO_ALG_GENIV ?
102                       alg->setkey : setkey;
103         crt->encrypt = alg->encrypt;
104         crt->decrypt = alg->decrypt;
105         crt->givencrypt = alg->givencrypt ?: no_givcrypt;
106         crt->givdecrypt = alg->givdecrypt ?: no_givcrypt;
107         crt->base = __crypto_aead_cast(tfm);
108         crt->ivsize = alg->ivsize;
109         crt->authsize = alg->maxauthsize;
110 
111         return 0;
112 }
113 
114 #ifdef CONFIG_NET
115 static int crypto_aead_report(struct sk_buff *skb, struct crypto_alg *alg)
116 {
117         struct crypto_report_aead raead;
118         struct aead_alg *aead = &alg->cra_aead;
119 
120         strncpy(raead.type, "aead", sizeof(raead.type));
121         strncpy(raead.geniv, aead->geniv ?: "<built-in>", sizeof(raead.geniv));
122 
123         raead.blocksize = alg->cra_blocksize;
124         raead.maxauthsize = aead->maxauthsize;
125         raead.ivsize = aead->ivsize;
126 
127         if (nla_put(skb, CRYPTOCFGA_REPORT_AEAD,
128                     sizeof(struct crypto_report_aead), &raead))
129                 goto nla_put_failure;
130         return 0;
131 
132 nla_put_failure:
133         return -EMSGSIZE;
134 }
135 #else
136 static int crypto_aead_report(struct sk_buff *skb, struct crypto_alg *alg)
137 {
138         return -ENOSYS;
139 }
140 #endif
141 
142 static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
143         __attribute__ ((unused));
144 static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
145 {
146         struct aead_alg *aead = &alg->cra_aead;
147 
148         seq_printf(m, "type         : aead\n");
149         seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
150                                              "yes" : "no");
151         seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
152         seq_printf(m, "ivsize       : %u\n", aead->ivsize);
153         seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);
154         seq_printf(m, "geniv        : %s\n", aead->geniv ?: "<built-in>");
155 }
156 
157 const struct crypto_type crypto_aead_type = {
158         .ctxsize = crypto_aead_ctxsize,
159         .init = crypto_init_aead_ops,
160 #ifdef CONFIG_PROC_FS
161         .show = crypto_aead_show,
162 #endif
163         .report = crypto_aead_report,
164 };
165 EXPORT_SYMBOL_GPL(crypto_aead_type);
166 
167 static int aead_null_givencrypt(struct aead_givcrypt_request *req)
168 {
169         return crypto_aead_encrypt(&req->areq);
170 }
171 
172 static int aead_null_givdecrypt(struct aead_givcrypt_request *req)
173 {
174         return crypto_aead_decrypt(&req->areq);
175 }
176 
177 static int crypto_init_nivaead_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
178 {
179         struct aead_alg *alg = &tfm->__crt_alg->cra_aead;
180         struct aead_tfm *crt = &tfm->crt_aead;
181 
182         if (max(alg->maxauthsize, alg->ivsize) > PAGE_SIZE / 8)
183                 return -EINVAL;
184 
185         crt->setkey = setkey;
186         crt->encrypt = alg->encrypt;
187         crt->decrypt = alg->decrypt;
188         if (!alg->ivsize) {
189                 crt->givencrypt = aead_null_givencrypt;
190                 crt->givdecrypt = aead_null_givdecrypt;
191         }
192         crt->base = __crypto_aead_cast(tfm);
193         crt->ivsize = alg->ivsize;
194         crt->authsize = alg->maxauthsize;
195 
196         return 0;
197 }
198 
199 #ifdef CONFIG_NET
200 static int crypto_nivaead_report(struct sk_buff *skb, struct crypto_alg *alg)
201 {
202         struct crypto_report_aead raead;
203         struct aead_alg *aead = &alg->cra_aead;
204 
205         strncpy(raead.type, "nivaead", sizeof(raead.type));
206         strncpy(raead.geniv, aead->geniv, sizeof(raead.geniv));
207 
208         raead.blocksize = alg->cra_blocksize;
209         raead.maxauthsize = aead->maxauthsize;
210         raead.ivsize = aead->ivsize;
211 
212         if (nla_put(skb, CRYPTOCFGA_REPORT_AEAD,
213                     sizeof(struct crypto_report_aead), &raead))
214                 goto nla_put_failure;
215         return 0;
216 
217 nla_put_failure:
218         return -EMSGSIZE;
219 }
220 #else
221 static int crypto_nivaead_report(struct sk_buff *skb, struct crypto_alg *alg)
222 {
223         return -ENOSYS;
224 }
225 #endif
226 
227 
228 static void crypto_nivaead_show(struct seq_file *m, struct crypto_alg *alg)
229         __attribute__ ((unused));
230 static void crypto_nivaead_show(struct seq_file *m, struct crypto_alg *alg)
231 {
232         struct aead_alg *aead = &alg->cra_aead;
233 
234         seq_printf(m, "type         : nivaead\n");
235         seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
236                                              "yes" : "no");
237         seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
238         seq_printf(m, "ivsize       : %u\n", aead->ivsize);
239         seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);
240         seq_printf(m, "geniv        : %s\n", aead->geniv);
241 }
242 
243 const struct crypto_type crypto_nivaead_type = {
244         .ctxsize = crypto_aead_ctxsize,
245         .init = crypto_init_nivaead_ops,
246 #ifdef CONFIG_PROC_FS
247         .show = crypto_nivaead_show,
248 #endif
249         .report = crypto_nivaead_report,
250 };
251 EXPORT_SYMBOL_GPL(crypto_nivaead_type);
252 
253 static int crypto_grab_nivaead(struct crypto_aead_spawn *spawn,
254                                const char *name, u32 type, u32 mask)
255 {
256         struct crypto_alg *alg;
257         int err;
258 
259         type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
260         type |= CRYPTO_ALG_TYPE_AEAD;
261         mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV;
262 
263         alg = crypto_alg_mod_lookup(name, type, mask);
264         if (IS_ERR(alg))
265                 return PTR_ERR(alg);
266 
267         err = crypto_init_spawn(&spawn->base, alg, spawn->base.inst, mask);
268         crypto_mod_put(alg);
269         return err;
270 }
271 
272 struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
273                                          struct rtattr **tb, u32 type,
274                                          u32 mask)
275 {
276         const char *name;
277         struct crypto_aead_spawn *spawn;
278         struct crypto_attr_type *algt;
279         struct crypto_instance *inst;
280         struct crypto_alg *alg;
281         int err;
282 
283         algt = crypto_get_attr_type(tb);
284         err = PTR_ERR(algt);
285         if (IS_ERR(algt))
286                 return ERR_PTR(err);
287 
288         if ((algt->type ^ (CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_GENIV)) &
289             algt->mask)
290                 return ERR_PTR(-EINVAL);
291 
292         name = crypto_attr_alg_name(tb[1]);
293         err = PTR_ERR(name);
294         if (IS_ERR(name))
295                 return ERR_PTR(err);
296 
297         inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
298         if (!inst)
299                 return ERR_PTR(-ENOMEM);
300 
301         spawn = crypto_instance_ctx(inst);
302 
303         /* Ignore async algorithms if necessary. */
304         mask |= crypto_requires_sync(algt->type, algt->mask);
305 
306         crypto_set_aead_spawn(spawn, inst);
307         err = crypto_grab_nivaead(spawn, name, type, mask);
308         if (err)
309                 goto err_free_inst;
310 
311         alg = crypto_aead_spawn_alg(spawn);
312 
313         err = -EINVAL;
314         if (!alg->cra_aead.ivsize)
315                 goto err_drop_alg;
316 
317         /*
318          * This is only true if we're constructing an algorithm with its
319          * default IV generator.  For the default generator we elide the
320          * template name and double-check the IV generator.
321          */
322         if (algt->mask & CRYPTO_ALG_GENIV) {
323                 if (strcmp(tmpl->name, alg->cra_aead.geniv))
324                         goto err_drop_alg;
325 
326                 memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
327                 memcpy(inst->alg.cra_driver_name, alg->cra_driver_name,
328                        CRYPTO_MAX_ALG_NAME);
329         } else {
330                 err = -ENAMETOOLONG;
331                 if (snprintf(inst->alg.cra_name, CRYPTO_MAX_ALG_NAME,
332                              "%s(%s)", tmpl->name, alg->cra_name) >=
333                     CRYPTO_MAX_ALG_NAME)
334                         goto err_drop_alg;
335                 if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
336                              "%s(%s)", tmpl->name, alg->cra_driver_name) >=
337                     CRYPTO_MAX_ALG_NAME)
338                         goto err_drop_alg;
339         }
340 
341         inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_GENIV;
342         inst->alg.cra_flags |= alg->cra_flags & CRYPTO_ALG_ASYNC;
343         inst->alg.cra_priority = alg->cra_priority;
344         inst->alg.cra_blocksize = alg->cra_blocksize;
345         inst->alg.cra_alignmask = alg->cra_alignmask;
346         inst->alg.cra_type = &crypto_aead_type;
347 
348         inst->alg.cra_aead.ivsize = alg->cra_aead.ivsize;
349         inst->alg.cra_aead.maxauthsize = alg->cra_aead.maxauthsize;
350         inst->alg.cra_aead.geniv = alg->cra_aead.geniv;
351 
352         inst->alg.cra_aead.setkey = alg->cra_aead.setkey;
353         inst->alg.cra_aead.setauthsize = alg->cra_aead.setauthsize;
354         inst->alg.cra_aead.encrypt = alg->cra_aead.encrypt;
355         inst->alg.cra_aead.decrypt = alg->cra_aead.decrypt;
356 
357 out:
358         return inst;
359 
360 err_drop_alg:
361         crypto_drop_aead(spawn);
362 err_free_inst:
363         kfree(inst);
364         inst = ERR_PTR(err);
365         goto out;
366 }
367 EXPORT_SYMBOL_GPL(aead_geniv_alloc);
368 
369 void aead_geniv_free(struct crypto_instance *inst)
370 {
371         crypto_drop_aead(crypto_instance_ctx(inst));
372         kfree(inst);
373 }
374 EXPORT_SYMBOL_GPL(aead_geniv_free);
375 
376 int aead_geniv_init(struct crypto_tfm *tfm)
377 {
378         struct crypto_instance *inst = (void *)tfm->__crt_alg;
379         struct crypto_aead *aead;
380 
381         aead = crypto_spawn_aead(crypto_instance_ctx(inst));
382         if (IS_ERR(aead))
383                 return PTR_ERR(aead);
384 
385         tfm->crt_aead.base = aead;
386         tfm->crt_aead.reqsize += crypto_aead_reqsize(aead);
387 
388         return 0;
389 }
390 EXPORT_SYMBOL_GPL(aead_geniv_init);
391 
392 void aead_geniv_exit(struct crypto_tfm *tfm)
393 {
394         crypto_free_aead(tfm->crt_aead.base);
395 }
396 EXPORT_SYMBOL_GPL(aead_geniv_exit);
397 
398 static int crypto_nivaead_default(struct crypto_alg *alg, u32 type, u32 mask)
399 {
400         struct rtattr *tb[3];
401         struct {
402                 struct rtattr attr;
403                 struct crypto_attr_type data;
404         } ptype;
405         struct {
406                 struct rtattr attr;
407                 struct crypto_attr_alg data;
408         } palg;
409         struct crypto_template *tmpl;
410         struct crypto_instance *inst;
411         struct crypto_alg *larval;
412         const char *geniv;
413         int err;
414 
415         larval = crypto_larval_lookup(alg->cra_driver_name,
416                                       CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_GENIV,
417                                       CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
418         err = PTR_ERR(larval);
419         if (IS_ERR(larval))
420                 goto out;
421 
422         err = -EAGAIN;
423         if (!crypto_is_larval(larval))
424                 goto drop_larval;
425 
426         ptype.attr.rta_len = sizeof(ptype);
427         ptype.attr.rta_type = CRYPTOA_TYPE;
428         ptype.data.type = type | CRYPTO_ALG_GENIV;
429         /* GENIV tells the template that we're making a default geniv. */
430         ptype.data.mask = mask | CRYPTO_ALG_GENIV;
431         tb[0] = &ptype.attr;
432 
433         palg.attr.rta_len = sizeof(palg);
434         palg.attr.rta_type = CRYPTOA_ALG;
435         /* Must use the exact name to locate ourselves. */
436         memcpy(palg.data.name, alg->cra_driver_name, CRYPTO_MAX_ALG_NAME);
437         tb[1] = &palg.attr;
438 
439         tb[2] = NULL;
440 
441         geniv = alg->cra_aead.geniv;
442 
443         tmpl = crypto_lookup_template(geniv);
444         err = -ENOENT;
445         if (!tmpl)
446                 goto kill_larval;
447 
448         inst = tmpl->alloc(tb);
449         err = PTR_ERR(inst);
450         if (IS_ERR(inst))
451                 goto put_tmpl;
452 
453         if ((err = crypto_register_instance(tmpl, inst))) {
454                 tmpl->free(inst);
455                 goto put_tmpl;
456         }
457 
458         /* Redo the lookup to use the instance we just registered. */
459         err = -EAGAIN;
460 
461 put_tmpl:
462         crypto_tmpl_put(tmpl);
463 kill_larval:
464         crypto_larval_kill(larval);
465 drop_larval:
466         crypto_mod_put(larval);
467 out:
468         crypto_mod_put(alg);
469         return err;
470 }
471 
472 struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask)
473 {
474         struct crypto_alg *alg;
475 
476         alg = crypto_alg_mod_lookup(name, type, mask);
477         if (IS_ERR(alg))
478                 return alg;
479 
480         if (alg->cra_type == &crypto_aead_type)
481                 return alg;
482 
483         if (!alg->cra_aead.ivsize)
484                 return alg;
485 
486         crypto_mod_put(alg);
487         alg = crypto_alg_mod_lookup(name, type | CRYPTO_ALG_TESTED,
488                                     mask & ~CRYPTO_ALG_TESTED);
489         if (IS_ERR(alg))
490                 return alg;
491 
492         if (alg->cra_type == &crypto_aead_type) {
493                 if ((alg->cra_flags ^ type ^ ~mask) & CRYPTO_ALG_TESTED) {
494                         crypto_mod_put(alg);
495                         alg = ERR_PTR(-ENOENT);
496                 }
497                 return alg;
498         }
499 
500         BUG_ON(!alg->cra_aead.ivsize);
501 
502         return ERR_PTR(crypto_nivaead_default(alg, type, mask));
503 }
504 EXPORT_SYMBOL_GPL(crypto_lookup_aead);
505 
506 int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
507                      u32 type, u32 mask)
508 {
509         struct crypto_alg *alg;
510         int err;
511 
512         type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
513         type |= CRYPTO_ALG_TYPE_AEAD;
514         mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
515         mask |= CRYPTO_ALG_TYPE_MASK;
516 
517         alg = crypto_lookup_aead(name, type, mask);
518         if (IS_ERR(alg))
519                 return PTR_ERR(alg);
520 
521         err = crypto_init_spawn(&spawn->base, alg, spawn->base.inst, mask);
522         crypto_mod_put(alg);
523         return err;
524 }
525 EXPORT_SYMBOL_GPL(crypto_grab_aead);
526 
527 struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask)
528 {
529         struct crypto_tfm *tfm;
530         int err;
531 
532         type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
533         type |= CRYPTO_ALG_TYPE_AEAD;
534         mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
535         mask |= CRYPTO_ALG_TYPE_MASK;
536 
537         for (;;) {
538                 struct crypto_alg *alg;
539 
540                 alg = crypto_lookup_aead(alg_name, type, mask);
541                 if (IS_ERR(alg)) {
542                         err = PTR_ERR(alg);
543                         goto err;
544                 }
545 
546                 tfm = __crypto_alloc_tfm(alg, type, mask);
547                 if (!IS_ERR(tfm))
548                         return __crypto_aead_cast(tfm);
549 
550                 crypto_mod_put(alg);
551                 err = PTR_ERR(tfm);
552 
553 err:
554                 if (err != -EAGAIN)
555                         break;
556                 if (signal_pending(current)) {
557                         err = -EINTR;
558                         break;
559                 }
560         }
561 
562         return ERR_PTR(err);
563 }
564 EXPORT_SYMBOL_GPL(crypto_alloc_aead);
565 
566 MODULE_LICENSE("GPL");
567 MODULE_DESCRIPTION("Authenticated Encryption with Associated Data (AEAD)");
568 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp