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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/crypto/api.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Scatterlist Cryptographic API.
34  *
....@@ -7,12 +8,6 @@
78  *
89  * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
910  * and Nettle, by Niels Möller.
10
- *
11
- * This program is free software; you can redistribute it and/or modify it
12
- * under the terms of the GNU General Public License as published by the Free
13
- * Software Foundation; either version 2 of the License, or (at your option)
14
- * any later version.
15
- *
1611  */
1712 
1813 #include <linux/err.h>
....@@ -102,7 +97,7 @@
10297 	struct crypto_larval *larval = (void *)alg;
10398 
10499 	BUG_ON(!crypto_is_larval(alg));
105
-	if (larval->adult)
100
+	if (!IS_ERR_OR_NULL(larval->adult))
106101 		crypto_mod_put(larval->adult);
107102 	kfree(larval);
108103 }
....@@ -183,6 +178,8 @@
183178 		alg = ERR_PTR(-ETIMEDOUT);
184179 	else if (!alg)
185180 		alg = ERR_PTR(-ENOENT);
181
+	else if (IS_ERR(alg))
182
+		;
186183 	else if (crypto_is_test_larval(larval) &&
187184 		 !(alg->cra_flags & CRYPTO_ALG_TESTED))
188185 		alg = ERR_PTR(-EAGAIN);
....@@ -300,20 +297,7 @@
300297 
301298 	if (type_obj)
302299 		return type_obj->init(tfm, type, mask);
303
-
304
-	switch (crypto_tfm_alg_type(tfm)) {
305
-	case CRYPTO_ALG_TYPE_CIPHER:
306
-		return crypto_init_cipher_ops(tfm);
307
-
308
-	case CRYPTO_ALG_TYPE_COMPRESS:
309
-		return crypto_init_compress_ops(tfm);
310
-
311
-	default:
312
-		break;
313
-	}
314
-
315
-	BUG();
316
-	return -EINVAL;
300
+	return 0;
317301 }
318302 
319303 static void crypto_exit_ops(struct crypto_tfm *tfm)
....@@ -349,12 +333,13 @@
349333 	return len;
350334 }
351335 
352
-static void crypto_shoot_alg(struct crypto_alg *alg)
336
+void crypto_shoot_alg(struct crypto_alg *alg)
353337 {
354338 	down_write(&crypto_alg_sem);
355339 	alg->cra_flags |= CRYPTO_ALG_DYING;
356340 	up_write(&crypto_alg_sem);
357341 }
342
+EXPORT_SYMBOL_GPL(crypto_shoot_alg);
358343 
359344 struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
360345 				      u32 mask)
....@@ -410,7 +395,7 @@
410395  *
411396  *	The returned transform is of a non-determinate type.  Most people
412397  *	should use one of the more specific allocation functions such as
413
- *	crypto_alloc_blkcipher.
398
+ *	crypto_alloc_skcipher().
414399  *
415400  *	In case of error the return value is an error pointer.
416401  */
....@@ -448,8 +433,9 @@
448433 }
449434 EXPORT_SYMBOL_GPL(crypto_alloc_base);
450435 
451
-void *crypto_create_tfm(struct crypto_alg *alg,
452
-			const struct crypto_type *frontend)
436
+void *crypto_create_tfm_node(struct crypto_alg *alg,
437
+			const struct crypto_type *frontend,
438
+			int node)
453439 {
454440 	char *mem;
455441 	struct crypto_tfm *tfm = NULL;
....@@ -460,12 +446,13 @@
460446 	tfmsize = frontend->tfmsize;
461447 	total = tfmsize + sizeof(*tfm) + frontend->extsize(alg);
462448 
463
-	mem = kzalloc(total, GFP_KERNEL);
449
+	mem = kzalloc_node(total, GFP_KERNEL, node);
464450 	if (mem == NULL)
465451 		goto out_err;
466452 
467453 	tfm = (struct crypto_tfm *)(mem + tfmsize);
468454 	tfm->__crt_alg = alg;
455
+	tfm->node = node;
469456 
470457 	err = frontend->init_tfm(tfm);
471458 	if (err)
....@@ -487,7 +474,7 @@
487474 out:
488475 	return mem;
489476 }
490
-EXPORT_SYMBOL_GPL(crypto_create_tfm);
477
+EXPORT_SYMBOL_GPL(crypto_create_tfm_node);
491478 
492479 struct crypto_alg *crypto_find_alg(const char *alg_name,
493480 				   const struct crypto_type *frontend,
....@@ -505,11 +492,13 @@
505492 EXPORT_SYMBOL_GPL(crypto_find_alg);
506493 
507494 /*
508
- *	crypto_alloc_tfm - Locate algorithm and allocate transform
495
+ *	crypto_alloc_tfm_node - Locate algorithm and allocate transform
509496  *	@alg_name: Name of algorithm
510497  *	@frontend: Frontend algorithm type
511498  *	@type: Type of algorithm
512499  *	@mask: Mask for type comparison
500
+ *	@node: NUMA node in which users desire to put requests, if node is
501
+ *		NUMA_NO_NODE, it means users have no special requirement.
513502  *
514503  *	crypto_alloc_tfm() will first attempt to locate an already loaded
515504  *	algorithm.  If that fails and the kernel supports dynamically loadable
....@@ -520,12 +509,14 @@
520509  *
521510  *	The returned transform is of a non-determinate type.  Most people
522511  *	should use one of the more specific allocation functions such as
523
- *	crypto_alloc_blkcipher.
512
+ *	crypto_alloc_skcipher().
524513  *
525514  *	In case of error the return value is an error pointer.
526515  */
527
-void *crypto_alloc_tfm(const char *alg_name,
528
-		       const struct crypto_type *frontend, u32 type, u32 mask)
516
+
517
+void *crypto_alloc_tfm_node(const char *alg_name,
518
+		       const struct crypto_type *frontend, u32 type, u32 mask,
519
+		       int node)
529520 {
530521 	void *tfm;
531522 	int err;
....@@ -539,7 +530,7 @@
539530 			goto err;
540531 		}
541532 
542
-		tfm = crypto_create_tfm(alg, frontend);
533
+		tfm = crypto_create_tfm_node(alg, frontend, node);
543534 		if (!IS_ERR(tfm))
544535 			return tfm;
545536 
....@@ -557,7 +548,7 @@
557548 
558549 	return ERR_PTR(err);
559550 }
560
-EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
551
+EXPORT_SYMBOL_GPL(crypto_alloc_tfm_node);
561552 
562553 /*
563554  *	crypto_destroy_tfm - Free crypto transform
....@@ -580,7 +571,7 @@
580571 		alg->cra_exit(tfm);
581572 	crypto_exit_ops(tfm);
582573 	crypto_mod_put(alg);
583
-	kzfree(mem);
574
+	kfree_sensitive(mem);
584575 }
585576 EXPORT_SYMBOL_GPL(crypto_destroy_tfm);
586577