af_alg.c (bf3c0e5e7102f5787d693379d9d384b813fe890b) af_alg.c (77ebdabe8de7c02f43c6de3357f79ff96f9f0579)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * af_alg: User-space algorithm interface
4 *
5 * This file provides the user-space API for algorithms.
6 *
7 * Copyright (c) 2010 Herbert Xu <herbert@gondor.apana.org.au>
8 */
9
10#include <linux/atomic.h>
11#include <crypto/if_alg.h>
12#include <linux/crypto.h>
13#include <linux/init.h>
14#include <linux/kernel.h>
15#include <linux/list.h>
16#include <linux/module.h>
17#include <linux/net.h>
18#include <linux/rwsem.h>
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * af_alg: User-space algorithm interface
4 *
5 * This file provides the user-space API for algorithms.
6 *
7 * Copyright (c) 2010 Herbert Xu <herbert@gondor.apana.org.au>
8 */
9
10#include <linux/atomic.h>
11#include <crypto/if_alg.h>
12#include <linux/crypto.h>
13#include <linux/init.h>
14#include <linux/kernel.h>
15#include <linux/list.h>
16#include <linux/module.h>
17#include <linux/net.h>
18#include <linux/rwsem.h>
19#include <linux/sched.h>
20#include <linux/sched/signal.h>
21#include <linux/security.h>
22
23struct alg_type_list {
24 const struct af_alg_type *type;
25 struct list_head list;
26};
27

--- 221 unchanged lines hidden (view full) ---

249 err = alg_setkey(sk, optval, optlen);
250 break;
251 case ALG_SET_AEAD_AUTHSIZE:
252 if (sock->state == SS_CONNECTED)
253 goto unlock;
254 if (!type->setauthsize)
255 goto unlock;
256 err = type->setauthsize(ask->private, optlen);
19#include <linux/sched/signal.h>
20#include <linux/security.h>
21
22struct alg_type_list {
23 const struct af_alg_type *type;
24 struct list_head list;
25};
26

--- 221 unchanged lines hidden (view full) ---

248 err = alg_setkey(sk, optval, optlen);
249 break;
250 case ALG_SET_AEAD_AUTHSIZE:
251 if (sock->state == SS_CONNECTED)
252 goto unlock;
253 if (!type->setauthsize)
254 goto unlock;
255 err = type->setauthsize(ask->private, optlen);
256 break;
257 case ALG_SET_DRBG_ENTROPY:
258 if (sock->state == SS_CONNECTED)
259 goto unlock;
260 if (!type->setentropy)
261 goto unlock;
262
263 err = type->setentropy(ask->private, optval, optlen);
257 }
258
259unlock:
260 release_sock(sk);
261
262 return err;
263}
264

--- 16 unchanged lines hidden (view full) ---

281 err = -ENOMEM;
282 if (!sk2)
283 goto unlock;
284
285 sock_init_data(newsock, sk2);
286 security_sock_graft(sk2, newsock);
287 security_sk_clone(sk, sk2);
288
264 }
265
266unlock:
267 release_sock(sk);
268
269 return err;
270}
271

--- 16 unchanged lines hidden (view full) ---

288 err = -ENOMEM;
289 if (!sk2)
290 goto unlock;
291
292 sock_init_data(newsock, sk2);
293 security_sock_graft(sk2, newsock);
294 security_sk_clone(sk, sk2);
295
296 /*
297 * newsock->ops assigned here to allow type->accept call to override
298 * them when required.
299 */
300 newsock->ops = type->ops;
289 err = type->accept(ask->private, sk2);
290
291 nokey = err == -ENOKEY;
292 if (nokey && type->accept_nokey)
293 err = type->accept_nokey(ask->private, sk2);
294
295 if (err)
296 goto unlock;
297
298 if (atomic_inc_return_relaxed(&ask->refcnt) == 1)
299 sock_hold(sk);
300 if (nokey) {
301 atomic_inc(&ask->nokey_refcnt);
302 atomic_set(&alg_sk(sk2)->nokey_refcnt, 1);
303 }
304 alg_sk(sk2)->parent = sk;
305 alg_sk(sk2)->type = type;
306
301 err = type->accept(ask->private, sk2);
302
303 nokey = err == -ENOKEY;
304 if (nokey && type->accept_nokey)
305 err = type->accept_nokey(ask->private, sk2);
306
307 if (err)
308 goto unlock;
309
310 if (atomic_inc_return_relaxed(&ask->refcnt) == 1)
311 sock_hold(sk);
312 if (nokey) {
313 atomic_inc(&ask->nokey_refcnt);
314 atomic_set(&alg_sk(sk2)->nokey_refcnt, 1);
315 }
316 alg_sk(sk2)->parent = sk;
317 alg_sk(sk2)->type = type;
318
307 newsock->ops = type->ops;
308 newsock->state = SS_CONNECTED;
309
310 if (nokey)
311 newsock->ops = type->ops_nokey;
312
313 err = 0;
314
315unlock:

--- 525 unchanged lines hidden (view full) ---

841 return -EINVAL;
842 }
843
844 if (con.iv && con.iv->ivlen != ivsize)
845 return -EINVAL;
846 }
847
848 lock_sock(sk);
319 newsock->state = SS_CONNECTED;
320
321 if (nokey)
322 newsock->ops = type->ops_nokey;
323
324 err = 0;
325
326unlock:

--- 525 unchanged lines hidden (view full) ---

852 return -EINVAL;
853 }
854
855 if (con.iv && con.iv->ivlen != ivsize)
856 return -EINVAL;
857 }
858
859 lock_sock(sk);
849 if (ctx->init && !ctx->more) {
850 if (ctx->used) {
851 err = -EINVAL;
852 goto unlock;
853 }
854
855 pr_info_once(
856 "%s sent an empty control message without MSG_MORE.\n",
857 current->comm);
860 if (ctx->init && (init || !ctx->more)) {
861 err = -EINVAL;
862 goto unlock;
858 }
859 ctx->init = true;
860
861 if (init) {
862 ctx->enc = enc;
863 if (con.iv)
864 memcpy(ctx->iv, con.iv->iv, ivsize);
865

--- 337 unchanged lines hidden --- 		863 }
864 ctx->init = true;
865
866 if (init) {
867 ctx->enc = enc;
868 if (con.iv)
869 memcpy(ctx->iv, con.iv->iv, ivsize);
870

--- 337 unchanged lines hidden ---