s390/crypto/paes_s390.c

58 static inline int _key_to_kb(struct key_blob *kb,
76 		memset(kb->keybuf, 0, sizeof(kb->keybuf));
77 		h = (struct clearkey_header *) kb->keybuf;
81 		memcpy(kb->keybuf + sizeof(*h), key, keylen);
82 		kb->keylen = sizeof(*h) + keylen;
83 		kb->key = kb->keybuf;
87 		if (keylen <= sizeof(kb->keybuf))
88 			kb->key = kb->keybuf;
90 			kb->key = kmalloc(keylen, GFP_KERNEL);
91 			if (!kb->key)
94 		memcpy(kb->key, key, keylen);
95 		kb->keylen = keylen;
102 static inline void _free_kb_keybuf(struct key_blob *kb)
104 	if (kb->key && kb->key != kb->keybuf
105 	    && kb->keylen > sizeof(kb->keybuf)) {
106 		kfree_sensitive(kb->key);
107 		kb->key = NULL;
112 	struct key_blob kb;
119 	struct key_blob kb[2];
125 static inline int __paes_keyblob2pkey(struct key_blob *kb,
136 		ret = pkey_keyblob2pkey(kb->key, kb->keylen,
149 	ret = __paes_keyblob2pkey(&ctx->kb, &pkey);
164 	ctx->kb.key = NULL;
174 	_free_kb_keybuf(&ctx->kb);
203 	_free_kb_keybuf(&ctx->kb);
204 	rc = _key_to_kb(&ctx->kb, in_key, key_len);
279 	ctx->kb.key = NULL;
289 	_free_kb_keybuf(&ctx->kb);
318 	_free_kb_keybuf(&ctx->kb);
319 	rc = _key_to_kb(&ctx->kb, in_key, key_len);
399 	ctx->kb[0].key = NULL;
400 	ctx->kb[1].key = NULL;
410 	_free_kb_keybuf(&ctx->kb[0]);
411 	_free_kb_keybuf(&ctx->kb[1]);
421 	if (__paes_keyblob2pkey(&ctx->kb[0], &pkey0) ||
422 	    __paes_keyblob2pkey(&ctx->kb[1], &pkey1))
467 	_free_kb_keybuf(&ctx->kb[0]);
468 	_free_kb_keybuf(&ctx->kb[1]);
469 	rc = _key_to_kb(&ctx->kb[0], in_key, key_len);
472 	rc = _key_to_kb(&ctx->kb[1], in_key + key_len, key_len);
579 	ctx->kb.key = NULL;
589 	_free_kb_keybuf(&ctx->kb);
619 	_free_kb_keybuf(&ctx->kb);
620 	rc = _key_to_kb(&ctx->kb, in_key, key_len);