• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号
登陆 注册

C++ crypto_free_shash函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中crypto_free_shash函数的典型用法代码示例。如果您正苦于以下问题：C++ crypto_free_shash函数的具体用法？C++ crypto_free_shash怎么用？C++ crypto_free_shash使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了crypto_free_shash函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: sahara_sha_cra_exit

static void sahara_sha_cra_exit(struct crypto_tfm *tfm)
{
	struct sahara_ctx *ctx = crypto_tfm_ctx(tfm);

	crypto_free_shash(ctx->shash_fallback);
	ctx->shash_fallback = NULL;
}
开发者ID:GongZiYuan，项目名称:linux，代码行数:7，代码来源:sahara.c


示例2: x509_get_sig_params

/*
 * Set up the signature parameters in an X.509 certificate.  This involves
 * digesting the signed data and extracting the signature.
 */
int x509_get_sig_params(struct x509_certificate *cert)
{
	struct crypto_shash *tfm;
	struct shash_desc *desc;
	size_t digest_size, desc_size;
	void *digest;
	int ret;

	pr_devel("==>%s()\n", __func__);

	if (cert->unsupported_crypto)
		return -ENOPKG;
	if (cert->sig.rsa.s)
		return 0;

	cert->sig.rsa.s = mpi_read_raw_data(cert->raw_sig, cert->raw_sig_size);
	if (!cert->sig.rsa.s)
		return -ENOMEM;
	cert->sig.nr_mpi = 1;

	/* Allocate the hashing algorithm we're going to need and find out how
	 * big the hash operational data will be.
	 */
	tfm = crypto_alloc_shash(hash_algo_name[cert->sig.pkey_hash_algo], 0, 0);
	if (IS_ERR(tfm)) {
		if (PTR_ERR(tfm) == -ENOENT) {
			cert->unsupported_crypto = true;
			return -ENOPKG;
		}
		return PTR_ERR(tfm);
	}

	desc_size = crypto_shash_descsize(tfm) + sizeof(*desc);
	digest_size = crypto_shash_digestsize(tfm);

	/* We allocate the hash operational data storage on the end of the
	 * digest storage space.
	 */
	ret = -ENOMEM;
	digest = kzalloc(digest_size + desc_size, GFP_KERNEL);
	if (!digest)
		goto error;

	cert->sig.digest = digest;
	cert->sig.digest_size = digest_size;

	desc = digest + digest_size;
	desc->tfm = tfm;
	desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;

	ret = crypto_shash_init(desc);
	if (ret < 0)
		goto error;
	might_sleep();
	ret = crypto_shash_finup(desc, cert->tbs, cert->tbs_size, digest);
error:
	crypto_free_shash(tfm);
	pr_devel("<==%s() = %d\n", __func__, ret);
	return ret;
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:64，代码来源:x509_public_key.c


示例3: trusted_shash_alloc

static int __init trusted_shash_alloc(void)
{
	int ret;

	hmacalg = crypto_alloc_shash(hmac_alg, 0, CRYPTO_ALG_ASYNC);
	if (IS_ERR(hmacalg)) {
		pr_info("trusted_key: could not allocate crypto %s\n",
			hmac_alg);
		return PTR_ERR(hmacalg);
	}

	hashalg = crypto_alloc_shash(hash_alg, 0, CRYPTO_ALG_ASYNC);
	if (IS_ERR(hashalg)) {
		pr_info("trusted_key: could not allocate crypto %s\n",
			hash_alg);
		ret = PTR_ERR(hashalg);
		goto hashalg_fail;
	}

	return 0;

hashalg_fail:
	crypto_free_shash(hmacalg);
	return ret;
}
开发者ID:19Dan01，项目名称:linux，代码行数:25，代码来源:trusted.c


示例4: cc_cipher_exit

static void cc_cipher_exit(struct crypto_tfm *tfm)
{
	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
	unsigned int max_key_buf_size = get_max_keysize(tfm);

	dev_dbg(dev, "Clearing context @%p for %s\n",
		crypto_tfm_ctx(tfm), crypto_tfm_alg_name(tfm));

	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
		/* Free hash tfm for essiv */
		crypto_free_shash(ctx_p->shash_tfm);
		ctx_p->shash_tfm = NULL;
	}

	/* Unmap key buffer */
	dma_unmap_single(dev, ctx_p->user.key_dma_addr, max_key_buf_size,
			 DMA_TO_DEVICE);
	dev_dbg(dev, "Unmapped key buffer key_dma_addr=%pad\n",
		&ctx_p->user.key_dma_addr);

	/* Free key buffer in context */
	kfree(ctx_p->user.key);
	dev_dbg(dev, "Free key buffer in context. [email protected]%p\n", ctx_p->user.key);
}
开发者ID:ReneNyffenegger，项目名称:linux，代码行数:25，代码来源:cc_cipher.c


示例5: kdf_alloc

static int kdf_alloc(struct kdf_sdesc **sdesc_ret, char *hashname)
{
	struct crypto_shash *tfm;
	struct kdf_sdesc *sdesc;
	int size;
	int err;

	/* allocate synchronous hash */
	tfm = crypto_alloc_shash(hashname, 0, 0);
	if (IS_ERR(tfm)) {
		pr_info("could not allocate digest TFM handle %s\n", hashname);
		return PTR_ERR(tfm);
	}

	err = -EINVAL;
	if (crypto_shash_digestsize(tfm) == 0)
		goto out_free_tfm;

	err = -ENOMEM;
	size = sizeof(struct shash_desc) + crypto_shash_descsize(tfm);
	sdesc = kmalloc(size, GFP_KERNEL);
	if (!sdesc)
		goto out_free_tfm;
	sdesc->shash.tfm = tfm;
	sdesc->shash.flags = 0x0;

	*sdesc_ret = sdesc;

	return 0;

out_free_tfm:
	crypto_free_shash(tfm);
	return err;
}
开发者ID:krzk，项目名称:linux，代码行数:34，代码来源:dh.c


示例6: derive_essiv_salt

static int derive_essiv_salt(const u8 *key, int keysize, u8 *salt)
{
	struct crypto_shash *tfm = READ_ONCE(essiv_hash_tfm);

	/* init hash transform on demand */
	if (unlikely(!tfm)) {
		struct crypto_shash *prev_tfm;

		tfm = crypto_alloc_shash("sha256", 0, 0);
		if (IS_ERR(tfm)) {
			pr_warn_ratelimited("fscrypt: error allocating SHA-256 transform: %ld\n",
					    PTR_ERR(tfm));
			return PTR_ERR(tfm);
		}
		prev_tfm = cmpxchg(&essiv_hash_tfm, NULL, tfm);
		if (prev_tfm) {
			crypto_free_shash(tfm);
			tfm = prev_tfm;
		}
	}

	{
		SHASH_DESC_ON_STACK(desc, tfm);
		desc->tfm = tfm;
		desc->flags = 0;

		return crypto_shash_digest(desc, key, keysize, salt);
	}
}
开发者ID:oscardagrach，项目名称:linux，代码行数:29，代码来源:keyinfo.c


示例7: p8_ghash_exit_tfm

static void p8_ghash_exit_tfm(struct crypto_tfm *tfm)
{
    struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm);

    if (ctx->fallback) {
        crypto_free_shash(ctx->fallback);
        ctx->fallback = NULL;
    }
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:9，代码来源:ghash.c


示例8: cifs_crypto_shash_release

void
cifs_crypto_shash_release(struct TCP_Server_Info *server)
{
	if (server->secmech.hmacsha256)
		crypto_free_shash(server->secmech.hmacsha256);

	if (server->secmech.md5)
		crypto_free_shash(server->secmech.md5);

	if (server->secmech.hmacmd5)
		crypto_free_shash(server->secmech.hmacmd5);

	kfree(server->secmech.sdeschmacsha256);

	kfree(server->secmech.sdeschmacmd5);

	kfree(server->secmech.sdescmd5);
}
开发者ID:dkati，项目名称:Hulk-Kernel-V2，代码行数:18，代码来源:cifsencrypt.c


示例9: smb3_crypto_shash_allocate

static int
smb3_crypto_shash_allocate(struct TCP_Server_Info *server)
{
	unsigned int size;
	int rc;

	if (server->secmech.sdesccmacaes != NULL)
		return 0;  /* already allocated */

	rc = smb2_crypto_shash_allocate(server);
	if (rc)
		return rc;

	server->secmech.cmacaes = crypto_alloc_shash("cmac(aes)", 0, 0);
	if (IS_ERR(server->secmech.cmacaes)) {
		cifs_dbg(VFS, "could not allocate crypto cmac-aes");
		kfree(server->secmech.sdeschmacsha256);
		server->secmech.sdeschmacsha256 = NULL;
		crypto_free_shash(server->secmech.hmacsha256);
		server->secmech.hmacsha256 = NULL;
		rc = PTR_ERR(server->secmech.cmacaes);
		server->secmech.cmacaes = NULL;
		return rc;
	}

	size = sizeof(struct shash_desc) +
			crypto_shash_descsize(server->secmech.cmacaes);
	server->secmech.sdesccmacaes = kmalloc(size, GFP_KERNEL);
	if (!server->secmech.sdesccmacaes) {
		cifs_dbg(VFS, "%s: Can't alloc cmacaes\n", __func__);
		kfree(server->secmech.sdeschmacsha256);
		server->secmech.sdeschmacsha256 = NULL;
		crypto_free_shash(server->secmech.hmacsha256);
		crypto_free_shash(server->secmech.cmacaes);
		server->secmech.hmacsha256 = NULL;
		server->secmech.cmacaes = NULL;
		return -ENOMEM;
	}
	server->secmech.sdesccmacaes->shash.tfm = server->secmech.cmacaes;
	server->secmech.sdesccmacaes->shash.flags = 0x0;

	return 0;
}
开发者ID:PKUCloud，项目名称:samsara-linux-3.11，代码行数:43，代码来源:smb2transport.c


示例10: kdf_dealloc

static void kdf_dealloc(struct kdf_sdesc *sdesc)
{
	if (!sdesc)
		return;

	if (sdesc->shash.tfm)
		crypto_free_shash(sdesc->shash.tfm);

	kzfree(sdesc);
}
开发者ID:krzk，项目名称:linux，代码行数:10，代码来源:dh.c


示例11: mutex_lock

static struct shash_desc *init_desc(char type)
{
	long rc;
	char *algo;
	struct crypto_shash **tfm;
	struct shash_desc *desc;

	if (type == EVM_XATTR_HMAC) {
		tfm = &hmac_tfm;
		algo = evm_hmac;
	} else {
		tfm = &hash_tfm;
		algo = evm_hash;
	}

	if (*tfm == NULL) {
		mutex_lock(&mutex);
		if (*tfm)
			goto out;
		*tfm = crypto_alloc_shash(algo, 0, CRYPTO_ALG_ASYNC);
		if (IS_ERR(*tfm)) {
			rc = PTR_ERR(*tfm);
			pr_err("Can not allocate %s (reason: %ld)\n", algo, rc);
			*tfm = NULL;
			mutex_unlock(&mutex);
			return ERR_PTR(rc);
		}
		if (type == EVM_XATTR_HMAC) {
			rc = crypto_shash_setkey(*tfm, evmkey, evmkey_len);
			if (rc) {
				crypto_free_shash(*tfm);
				*tfm = NULL;
				mutex_unlock(&mutex);
				return ERR_PTR(rc);
			}
		}
out:
		mutex_unlock(&mutex);
	}

	desc = kmalloc(sizeof(*desc) + crypto_shash_descsize(*tfm),
			GFP_KERNEL);
	if (!desc)
		return ERR_PTR(-ENOMEM);

	desc->tfm = *tfm;
	desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;

	rc = crypto_shash_init(desc);
	if (rc) {
		kfree(desc);
		return ERR_PTR(rc);
	}
	return desc;
}
开发者ID:AdrianHuang，项目名称:linux-3.8.13，代码行数:55，代码来源:evm_crypto.c


示例12: crypt_iv_lmk_dtr

static void crypt_iv_lmk_dtr(struct crypt_config *cc)
{
    struct iv_lmk_private *lmk = &cc->iv_gen_private.lmk;

    if (lmk->hash_tfm && !IS_ERR(lmk->hash_tfm))
        crypto_free_shash(lmk->hash_tfm);
    lmk->hash_tfm = NULL;

    kzfree(lmk->seed);
    lmk->seed = NULL;
}
开发者ID:bju2000，项目名称:mediatek，代码行数:11，代码来源:dm-crypt.c


示例13: crypt_iv_tcw_dtr

static void crypt_iv_tcw_dtr(struct crypt_config *cc)
{
	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;

	kzfree(tcw->iv_seed);
	tcw->iv_seed = NULL;
	kzfree(tcw->whitening);
	tcw->whitening = NULL;

	if (tcw->crc32_tfm && !IS_ERR(tcw->crc32_tfm))
		crypto_free_shash(tcw->crc32_tfm);
	tcw->crc32_tfm = NULL;
}
开发者ID:orinocoz，项目名称:BPI-Kernel4.0，代码行数:13，代码来源:dm-crypt.c


示例14: btrfs_dedup_cleanup

int btrfs_dedup_cleanup(struct btrfs_fs_info *fs_info)
{
	if (!fs_info->dedup_info)
		return 0;
	if (fs_info->dedup_info->backend == BTRFS_DEDUP_BACKEND_INMEMORY)
		inmem_destroy(fs_info);
	if (fs_info->dedup_info->dedup_root) {
		free_root_extent_buffers(fs_info->dedup_info->dedup_root);
		kfree(fs_info->dedup_info->dedup_root);
	}
	crypto_free_shash(fs_info->dedup_info->dedup_driver);
	kfree(fs_info->dedup_info);
	fs_info->dedup_info = NULL;
	return 0;
}
开发者ID:quadcores，项目名称:test，代码行数:15，代码来源:dedup.c


示例15: btrfs_dedup_disable

int btrfs_dedup_disable(struct btrfs_fs_info *fs_info)
{
	struct btrfs_dedup_info *dedup_info = fs_info->dedup_info;
	int ret = 0;

	if (!dedup_info)
		return 0;

	if (dedup_info->backend == BTRFS_DEDUP_BACKEND_INMEMORY)
		inmem_destroy(fs_info);
	if (dedup_info->dedup_root)
		ret = btrfs_drop_snapshot(dedup_info->dedup_root, NULL, 1, 0);
	crypto_free_shash(fs_info->dedup_info->dedup_driver);
	kfree(fs_info->dedup_info);
	fs_info->dedup_info = NULL;
	return ret;
}
开发者ID:quadcores，项目名称:test，代码行数:17，代码来源:dedup.c


示例16: symlink_hash

static int
symlink_hash(unsigned int link_len, const char *link_str, u8 *md5_hash)
{
	int rc;
	unsigned int size;
	struct crypto_shash *md5;
	struct sdesc *sdescmd5;

	md5 = crypto_alloc_shash("md5", 0, 0);
	if (IS_ERR(md5)) {
		rc = PTR_ERR(md5);
		cERROR(1, "%s: Crypto md5 allocation error %d\n", __func__, rc);
		return rc;
	}
	size = sizeof(struct shash_desc) + crypto_shash_descsize(md5);
	sdescmd5 = kmalloc(size, GFP_KERNEL);
	if (!sdescmd5) {
		rc = -ENOMEM;
		cERROR(1, "%s: Memory allocation failure\n", __func__);
		goto symlink_hash_err;
	}
	sdescmd5->shash.tfm = md5;
	sdescmd5->shash.flags = 0x0;

	rc = crypto_shash_init(&sdescmd5->shash);
	if (rc) {
		cERROR(1, "%s: Could not init md5 shash\n", __func__);
		goto symlink_hash_err;
	}
	rc = crypto_shash_update(&sdescmd5->shash, link_str, link_len);
	if (rc) {
		cERROR(1, "%s: Could not update iwth link_str\n", __func__);
		goto symlink_hash_err;
	}
	rc = crypto_shash_final(&sdescmd5->shash, md5_hash);
	if (rc)
		cERROR(1, "%s: Could not generate md5 hash\n", __func__);

symlink_hash_err:
	crypto_free_shash(md5);
	kfree(sdescmd5);

	return rc;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:44，代码来源:link.c


示例17: rxe_dealloc

/* free resources for a rxe device all objects created for this device must
 * have been destroyed
 */
void rxe_dealloc(struct ib_device *ib_dev)
{
	struct rxe_dev *rxe = container_of(ib_dev, struct rxe_dev, ib_dev);

	rxe_pool_cleanup(&rxe->uc_pool);
	rxe_pool_cleanup(&rxe->pd_pool);
	rxe_pool_cleanup(&rxe->ah_pool);
	rxe_pool_cleanup(&rxe->srq_pool);
	rxe_pool_cleanup(&rxe->qp_pool);
	rxe_pool_cleanup(&rxe->cq_pool);
	rxe_pool_cleanup(&rxe->mr_pool);
	rxe_pool_cleanup(&rxe->mw_pool);
	rxe_pool_cleanup(&rxe->mc_grp_pool);
	rxe_pool_cleanup(&rxe->mc_elem_pool);

	rxe_cleanup_ports(rxe);

	if (rxe->tfm)
		crypto_free_shash(rxe->tfm);
}
开发者ID:Anjali05，项目名称:linux，代码行数:23，代码来源:rxe.c


示例18: calc_hash

static int calc_hash(const u8 *src, int src_len, u8 *out, struct device *dev)
{
	struct crypto_shash *shash;
	struct sdesc *desc;
	int size;
	int ret = -EFAULT;

	shash = crypto_alloc_shash(HASH_ALG, 0, CRYPTO_ALG_ASYNC);
	if (IS_ERR(shash)) {
		dev_err(dev, "%s: Error. crypto_alloc_shash.\n", __func__);
		goto err_shash;
	}

	size = sizeof(struct shash_desc) + crypto_shash_descsize(shash);
	desc = kmalloc(size, GFP_KERNEL);
	if (!desc) {
		dev_err(dev, "%s: Error. No enough mem for Desc.\n", __func__);
		ret = -ENOMEM;
		goto err_desc;
	}

	desc->shash.tfm = shash;
	desc->shash.flags = 0x00;

	if (crypto_shash_digest(&desc->shash, src, src_len, out)) {
		dev_err(dev, "%s: Error. generate hash.\n", __func__);
		goto err_generate;
	}

	ret = 0;

err_generate:
	kfree(desc);
err_desc:
	crypto_free_shash(shash);
err_shash:
	return ret;
}
开发者ID:mericon，项目名称:kernel-msm8660-gb，代码行数:38，代码来源:felica.c


示例19: crc_t10dif_mod_fini

static void __exit crc_t10dif_mod_fini(void)
{
	crypto_free_shash(crct10dif_tfm);
}
开发者ID:aplnosun，项目名称:linux，代码行数:4，代码来源:crc-t10dif.c


示例20: pefile_digest_pe

/*
 * Digest the contents of the PE binary, leaving out the image checksum and the
 * certificate data block.
 */
static int pefile_digest_pe(const void *pebuf, unsigned int pelen,
			    struct pefile_context *ctx)
{
	struct crypto_shash *tfm;
	struct shash_desc *desc;
	size_t digest_size, desc_size;
	void *digest;
	int ret;

	kenter(",%s", ctx->digest_algo);

	/* Allocate the hashing algorithm we're going to need and find out how
	 * big the hash operational data will be.
	 */
	tfm = crypto_alloc_shash(ctx->digest_algo, 0, 0);
	if (IS_ERR(tfm))
		return (PTR_ERR(tfm) == -ENOENT) ? -ENOPKG : PTR_ERR(tfm);

	desc_size = crypto_shash_descsize(tfm) + sizeof(*desc);
	digest_size = crypto_shash_digestsize(tfm);

	if (digest_size != ctx->digest_len) {
		pr_debug("Digest size mismatch (%zx != %x)\n",
			 digest_size, ctx->digest_len);
		ret = -EBADMSG;
		goto error_no_desc;
	}
	pr_debug("Digest: desc=%zu size=%zu\n", desc_size, digest_size);

	ret = -ENOMEM;
	desc = kzalloc(desc_size + digest_size, GFP_KERNEL);
	if (!desc)
		goto error_no_desc;

	desc->tfm   = tfm;
	desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
	ret = crypto_shash_init(desc);
	if (ret < 0)
		goto error;

	ret = pefile_digest_pe_contents(pebuf, pelen, ctx, desc);
	if (ret < 0)
		goto error;

	digest = (void *)desc + desc_size;
	ret = crypto_shash_final(desc, digest);
	if (ret < 0)
		goto error;

	pr_debug("Digest calc = [%*ph]\n", ctx->digest_len, digest);

	/* Check that the PE file digest matches that in the MSCODE part of the
	 * PKCS#7 certificate.
	 */
	if (memcmp(digest, ctx->digest, ctx->digest_len) != 0) {
		pr_debug("Digest mismatch\n");
		ret = -EKEYREJECTED;
	} else {
		pr_debug("The digests match!\n");
	}

error:
	kfree(desc);
error_no_desc:
	crypto_free_shash(tfm);
	kleave(" = %d", ret);
	return ret;
}
开发者ID:020gzh，项目名称:linux，代码行数:72，代码来源:verify_pefile.c



注：本文中的crypto_free_shash函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花
握手
雷人
路过
鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
More+
上一篇：
C++ crypto_gcm_reqctx函数代码示例发布时间：2022-05-30
下一篇：
C++ crypto_free_hash函数代码示例发布时间：2022-05-30
热门推荐
More+
热门话题
More+
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服（服务时间 9:00～18:00）

在线QQ客服
地址：深圳市南山区西丽大学城创智工业园
电邮：jeky_zhao#qq.com
移动电话：139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap