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C++ crypto_get_attr_type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_get_attr_type函数的典型用法代码示例。如果您正苦于以下问题：C++ crypto_get_attr_type函数的具体用法？C++ crypto_get_attr_type怎么用？C++ crypto_get_attr_type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_get_attr_type函数的18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: crypto_get_attr_type

static struct crypto_instance *seqiv_alloc(struct rtattr **tb)
{
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return ERR_CAST(algt);

	err = crypto_get_default_rng();
	if (err)
		return ERR_PTR(err);

	if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & CRYPTO_ALG_TYPE_MASK)
		inst = seqiv_ablkcipher_alloc(tb);
	else
		inst = seqiv_aead_alloc(tb);

	if (IS_ERR(inst))
		goto put_rng;

	inst->alg.cra_alignmask |= __alignof__(u32) - 1;
	inst->alg.cra_ctxsize += sizeof(struct seqiv_ctx);

out:
	return inst;

put_rng:
	crypto_put_default_rng();
	goto out;
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:32，代码来源:seqiv.c


示例2: seqiv_create

static int seqiv_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct crypto_attr_type *algt;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & CRYPTO_ALG_TYPE_MASK)
		return -EINVAL;

	return seqiv_aead_create(tmpl, tb);
}
开发者ID:AK101111，项目名称:linux，代码行数:13，代码来源:seqiv.c


示例3: pcrypt_create

static int pcrypt_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct crypto_attr_type *algt;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
	case CRYPTO_ALG_TYPE_AEAD:
		return pcrypt_create_aead(tmpl, tb, algt->type, algt->mask);
	}

	return -EINVAL;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:15，代码来源:pcrypt.c


示例4: crypto_get_attr_type

static struct crypto_instance *pcrypt_alloc(struct rtattr **tb)
{
	struct crypto_attr_type *algt;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return ERR_CAST(algt);

	switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
	case CRYPTO_ALG_TYPE_AEAD:
		return pcrypt_alloc_aead(tb, algt->type, algt->mask);
	}

	return ERR_PTR(-EINVAL);
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:15，代码来源:pcrypt.c


示例5: crypto_get_attr_type

static struct crypto_instance *cryptd_alloc(struct rtattr **tb)
{
    struct crypto_attr_type *algt;

    algt = crypto_get_attr_type(tb);
    if (IS_ERR(algt))
        return ERR_CAST(algt);

    switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
    case CRYPTO_ALG_TYPE_BLKCIPHER:
        return cryptd_alloc_blkcipher(tb, &state);
    }

    return ERR_PTR(-EINVAL);
}
开发者ID:274914765，项目名称:C，代码行数:15，代码来源:cryptd.c


示例6: crypto_get_attr_type

static struct crypto_instance *chainiv_alloc(struct rtattr **tb)
{
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	int err;

	algt = crypto_get_attr_type(tb);
	err = PTR_ERR(algt);
	if (IS_ERR(algt))
		return ERR_PTR(err);

	err = crypto_get_default_rng();
	if (err)
		return ERR_PTR(err);

	inst = skcipher_geniv_alloc(&chainiv_tmpl, tb, 0, 0);
	if (IS_ERR(inst))
		goto put_rng;

	inst->alg.cra_ablkcipher.givencrypt = chainiv_givencrypt_first;

	inst->alg.cra_init = chainiv_init;
	inst->alg.cra_exit = skcipher_geniv_exit;

	inst->alg.cra_ctxsize = sizeof(struct chainiv_ctx);

	if (!crypto_requires_sync(algt->type, algt->mask)) {
		inst->alg.cra_flags |= CRYPTO_ALG_ASYNC;

		inst->alg.cra_ablkcipher.givencrypt =
			async_chainiv_givencrypt_first;

		inst->alg.cra_init = async_chainiv_init;
		inst->alg.cra_exit = async_chainiv_exit;

		inst->alg.cra_ctxsize = sizeof(struct async_chainiv_ctx);
	}

	inst->alg.cra_ctxsize += inst->alg.cra_ablkcipher.ivsize;

out:
	return inst;

put_rng:
	crypto_put_default_rng();
	goto out;
}
开发者ID:10x-Amin，项目名称:x10_Th_kernel，代码行数:47，代码来源:chainiv.c


示例7: async_encrypt


//.........这里部分代码省略.........

	alg = crypto_alg_mod_lookup(name, type, mask);
	if (IS_ERR(alg))
		return PTR_ERR(alg);

	err = crypto_init_spawn(&spawn->base, alg, spawn->base.inst, mask);
	crypto_mod_put(alg);
	return err;
}

struct crypto_instance *skcipher_geniv_alloc(struct crypto_template *tmpl,
					     struct rtattr **tb, u32 type,
					     u32 mask)
{
	struct {
		int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
			      unsigned int keylen);
		int (*encrypt)(struct ablkcipher_request *req);
		int (*decrypt)(struct ablkcipher_request *req);

		unsigned int min_keysize;
		unsigned int max_keysize;
		unsigned int ivsize;

		const char *geniv;
	} balg;
	const char *name;
	struct crypto_skcipher_spawn *spawn;
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	algt = crypto_get_attr_type(tb);
	err = PTR_ERR(algt);
	if (IS_ERR(algt))
		return ERR_PTR(err);

	if ((algt->type ^ (CRYPTO_ALG_TYPE_GIVCIPHER | CRYPTO_ALG_GENIV)) &
	    algt->mask)
		return ERR_PTR(-EINVAL);

	name = crypto_attr_alg_name(tb[1]);
	err = PTR_ERR(name);
	if (IS_ERR(name))
		return ERR_PTR(err);

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return ERR_PTR(-ENOMEM);

	spawn = crypto_instance_ctx(inst);

	/* Ignore async algorithms if necessary. */
	mask |= crypto_requires_sync(algt->type, algt->mask);

	crypto_set_skcipher_spawn(spawn, inst);
	err = crypto_grab_nivcipher(spawn, name, type, mask);
	if (err)
		goto err_free_inst;

	alg = crypto_skcipher_spawn_alg(spawn);

	if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
	    CRYPTO_ALG_TYPE_BLKCIPHER) {
		balg.ivsize = alg->cra_blkcipher.ivsize;
开发者ID:1111saeid，项目名称:jb_kernel_3.0.16_htc_golfu，代码行数:67，代码来源:blkcipher.c


示例8: crypto_get_attr_type

struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
					 struct rtattr **tb, u32 type,
					 u32 mask)
{
	const char *name;
	struct crypto_aead_spawn *spawn;
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	algt = crypto_get_attr_type(tb);
	err = PTR_ERR(algt);
	if (IS_ERR(algt))
		return ERR_PTR(err);

	if ((algt->type ^ (CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_GENIV)) &
	    algt->mask)
		return ERR_PTR(-EINVAL);

	name = crypto_attr_alg_name(tb[1]);
	err = PTR_ERR(name);
	if (IS_ERR(name))
		return ERR_PTR(err);

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return ERR_PTR(-ENOMEM);

	spawn = crypto_instance_ctx(inst);

	/* Ignore async algorithms if necessary. */
	mask |= crypto_requires_sync(algt->type, algt->mask);

	crypto_set_aead_spawn(spawn, inst);
	err = crypto_grab_nivaead(spawn, name, type, mask);
	if (err)
		goto err_free_inst;

	alg = crypto_aead_spawn_alg(spawn);

	err = -EINVAL;
	if (!alg->cra_aead.ivsize)
		goto err_drop_alg;

	/*
	 * This is only true if we're constructing an algorithm with its
	 * default IV generator.  For the default generator we elide the
	 * template name and double-check the IV generator.
	 */
	if (algt->mask & CRYPTO_ALG_GENIV) {
		if (strcmp(tmpl->name, alg->cra_aead.geniv))
			goto err_drop_alg;

		memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
		memcpy(inst->alg.cra_driver_name, alg->cra_driver_name,
		       CRYPTO_MAX_ALG_NAME);
	} else {
		err = -ENAMETOOLONG;
		if (snprintf(inst->alg.cra_name, CRYPTO_MAX_ALG_NAME,
			     "%s(%s)", tmpl->name, alg->cra_name) >=
		    CRYPTO_MAX_ALG_NAME)
			goto err_drop_alg;
		if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
			     "%s(%s)", tmpl->name, alg->cra_driver_name) >=
		    CRYPTO_MAX_ALG_NAME)
			goto err_drop_alg;
	}

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_GENIV;
	inst->alg.cra_flags |= alg->cra_flags & CRYPTO_ALG_ASYNC;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = alg->cra_blocksize;
	inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = &crypto_aead_type;

	inst->alg.cra_aead.ivsize = alg->cra_aead.ivsize;
	inst->alg.cra_aead.maxauthsize = alg->cra_aead.maxauthsize;
	inst->alg.cra_aead.geniv = alg->cra_aead.geniv;

	inst->alg.cra_aead.setkey = alg->cra_aead.setkey;
	inst->alg.cra_aead.setauthsize = alg->cra_aead.setauthsize;
	inst->alg.cra_aead.encrypt = alg->cra_aead.encrypt;
	inst->alg.cra_aead.decrypt = alg->cra_aead.decrypt;

out:
	return inst;

err_drop_alg:
	crypto_drop_aead(spawn);
err_free_inst:
	kfree(inst);
	inst = ERR_PTR(err);
	goto out;
}
开发者ID:robcore，项目名称:Hulk-Kernel-V2，代码行数:95，代码来源:aead.c


示例9: crypto_pcbc_create

static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct skcipher_instance *inst;
	struct crypto_attr_type *algt;
	struct crypto_spawn *spawn;
	struct crypto_alg *alg;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	if (((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) &
	    ~CRYPTO_ALG_INTERNAL)
		return -EINVAL;

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER |
				      (algt->type & CRYPTO_ALG_INTERNAL),
				  CRYPTO_ALG_TYPE_MASK |
				  (algt->mask & CRYPTO_ALG_INTERNAL));
	err = PTR_ERR(alg);
	if (IS_ERR(alg))
		goto err_free_inst;

	spawn = skcipher_instance_ctx(inst);
	err = crypto_init_spawn(spawn, alg, skcipher_crypto_instance(inst),
				CRYPTO_ALG_TYPE_MASK);
	if (err)
		goto err_put_alg;

	err = crypto_inst_setname(skcipher_crypto_instance(inst), "pcbc", alg);
	if (err)
		goto err_drop_spawn;

	inst->alg.base.cra_flags = alg->cra_flags & CRYPTO_ALG_INTERNAL;
	inst->alg.base.cra_priority = alg->cra_priority;
	inst->alg.base.cra_blocksize = alg->cra_blocksize;
	inst->alg.base.cra_alignmask = alg->cra_alignmask;

	inst->alg.ivsize = alg->cra_blocksize;
	inst->alg.min_keysize = alg->cra_cipher.cia_min_keysize;
	inst->alg.max_keysize = alg->cra_cipher.cia_max_keysize;

	inst->alg.base.cra_ctxsize = sizeof(struct crypto_pcbc_ctx);

	inst->alg.init = crypto_pcbc_init_tfm;
	inst->alg.exit = crypto_pcbc_exit_tfm;

	inst->alg.setkey = crypto_pcbc_setkey;
	inst->alg.encrypt = crypto_pcbc_encrypt;
	inst->alg.decrypt = crypto_pcbc_decrypt;

	inst->free = crypto_pcbc_free;

	err = skcipher_register_instance(tmpl, inst);
	if (err)
		goto err_drop_spawn;
	crypto_mod_put(alg);

out:
	return err;

err_drop_spawn:
	crypto_drop_spawn(spawn);
err_put_alg:
	crypto_mod_put(alg);
err_free_inst:
	kfree(inst);
	goto out;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:74，代码来源:pcbc.c


示例10: crypto_rfc4309_create

static int crypto_rfc4309_create(struct crypto_template *tmpl,
				 struct rtattr **tb)
{
	struct crypto_attr_type *algt;
	struct aead_instance *inst;
	struct crypto_aead_spawn *spawn;
	struct aead_alg *alg;
	const char *ccm_name;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	if ((algt->type ^ (CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_AEAD_NEW)) &
	    algt->mask)
		return -EINVAL;

	ccm_name = crypto_attr_alg_name(tb[1]);
	if (IS_ERR(ccm_name))
		return PTR_ERR(ccm_name);

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	spawn = aead_instance_ctx(inst);
	crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
	err = crypto_grab_aead(spawn, ccm_name, 0,
			       crypto_requires_sync(algt->type, algt->mask));
	if (err)
		goto out_free_inst;

	alg = crypto_spawn_aead_alg(spawn);

	err = -EINVAL;

	/* We only support 16-byte blocks. */
	if (crypto_aead_alg_ivsize(alg) != 16)
		goto out_drop_alg;

	/* Not a stream cipher? */
	if (alg->base.cra_blocksize != 1)
		goto out_drop_alg;

	err = -ENAMETOOLONG;
	if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
		     "rfc4309(%s)", alg->base.cra_name) >=
	    CRYPTO_MAX_ALG_NAME ||
	    snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
		     "rfc4309(%s)", alg->base.cra_driver_name) >=
	    CRYPTO_MAX_ALG_NAME)
		goto out_drop_alg;

	inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
	inst->alg.base.cra_flags |= CRYPTO_ALG_AEAD_NEW;
	inst->alg.base.cra_priority = alg->base.cra_priority;
	inst->alg.base.cra_blocksize = 1;
	inst->alg.base.cra_alignmask = alg->base.cra_alignmask;

	inst->alg.ivsize = 8;
	inst->alg.maxauthsize = 16;

	inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4309_ctx);

	inst->alg.init = crypto_rfc4309_init_tfm;
	inst->alg.exit = crypto_rfc4309_exit_tfm;

	inst->alg.setkey = crypto_rfc4309_setkey;
	inst->alg.setauthsize = crypto_rfc4309_setauthsize;
	inst->alg.encrypt = crypto_rfc4309_encrypt;
	inst->alg.decrypt = crypto_rfc4309_decrypt;

	inst->free = crypto_rfc4309_free;

	err = aead_register_instance(tmpl, inst);
	if (err)
		goto out_drop_alg;

out:
	return err;

out_drop_alg:
	crypto_drop_aead(spawn);
out_free_inst:
	kfree(inst);
	goto out;
}
开发者ID:EvolutionMod，项目名称:ath10-lenovo，代码行数:88，代码来源:crypto-ccm.c


示例11: crypto_get_attr_type

static struct crypto_instance *crypto_ccm_alloc_common(struct rtattr **tb,
						       const char *full_name,
						       const char *ctr_name,
						       const char *cipher_name)
{
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	struct crypto_alg *ctr;
	struct crypto_alg *cipher;
	struct ccm_instance_ctx *ictx;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return ERR_CAST(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
		return ERR_PTR(-EINVAL);

	cipher = crypto_alg_mod_lookup(cipher_name,  CRYPTO_ALG_TYPE_CIPHER,
				       CRYPTO_ALG_TYPE_MASK);
	if (IS_ERR(cipher))
		return ERR_CAST(cipher);

	err = -EINVAL;
	if (cipher->cra_blocksize != 16)
		goto out_put_cipher;

	inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
	err = -ENOMEM;
	if (!inst)
		goto out_put_cipher;

	ictx = crypto_instance_ctx(inst);

	err = crypto_init_spawn(&ictx->cipher, cipher, inst,
				CRYPTO_ALG_TYPE_MASK);
	if (err)
		goto err_free_inst;

	crypto_set_skcipher_spawn(&ictx->ctr, inst);
	err = crypto_grab_skcipher(&ictx->ctr, ctr_name, 0,
				   crypto_requires_sync(algt->type,
							algt->mask));
	if (err)
		goto err_drop_cipher;

	ctr = crypto_skcipher_spawn_alg(&ictx->ctr);

	/* Not a stream cipher? */
	err = -EINVAL;
	if (ctr->cra_blocksize != 1)
		goto err_drop_ctr;

	/* We want the real thing! */
	if (ctr->cra_ablkcipher.ivsize != 16)
		goto err_drop_ctr;

	err = -ENAMETOOLONG;
	if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
		     "ccm_base(%s,%s)", ctr->cra_driver_name,
		     cipher->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
		goto err_drop_ctr;

	memcpy(inst->alg.cra_name, full_name, CRYPTO_MAX_ALG_NAME);

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD;
	inst->alg.cra_flags |= ctr->cra_flags & CRYPTO_ALG_ASYNC;
	inst->alg.cra_priority = cipher->cra_priority + ctr->cra_priority;
	inst->alg.cra_blocksize = 1;
	inst->alg.cra_alignmask = cipher->cra_alignmask | ctr->cra_alignmask |
				  (__alignof__(u32) - 1);
	inst->alg.cra_type = &crypto_aead_type;
	inst->alg.cra_aead.ivsize = 16;
	inst->alg.cra_aead.maxauthsize = 16;
	inst->alg.cra_ctxsize = sizeof(struct crypto_ccm_ctx);
	inst->alg.cra_init = crypto_ccm_init_tfm;
	inst->alg.cra_exit = crypto_ccm_exit_tfm;
	inst->alg.cra_aead.setkey = crypto_ccm_setkey;
	inst->alg.cra_aead.setauthsize = crypto_ccm_setauthsize;
	inst->alg.cra_aead.encrypt = crypto_ccm_encrypt;
	inst->alg.cra_aead.decrypt = crypto_ccm_decrypt;

out:
	crypto_mod_put(cipher);
	return inst;

err_drop_ctr:
	crypto_drop_skcipher(&ictx->ctr);
err_drop_cipher:
	crypto_drop_spawn(&ictx->cipher);
err_free_inst:
	kfree(inst);
out_put_cipher:
	inst = ERR_PTR(err);
	goto out;
}
开发者ID:Kanel，项目名称:CloudMAC-VAP-Driver，代码行数:97，代码来源:crypto-ccm.c


示例12: crypto_rfc3686_create

static int crypto_rfc3686_create(struct crypto_template *tmpl,
				 struct rtattr **tb)
{
	struct crypto_attr_type *algt;
	struct skcipher_instance *inst;
	struct skcipher_alg *alg;
	struct crypto_skcipher_spawn *spawn;
	const char *cipher_name;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
		return -EINVAL;

	cipher_name = crypto_attr_alg_name(tb[1]);
	if (IS_ERR(cipher_name))
		return PTR_ERR(cipher_name);

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	spawn = skcipher_instance_ctx(inst);

	crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
	err = crypto_grab_skcipher(spawn, cipher_name, 0,
				   crypto_requires_sync(algt->type,
							algt->mask));
	if (err)
		goto err_free_inst;

	alg = crypto_spawn_skcipher_alg(spawn);

	/* We only support 16-byte blocks. */
	err = -EINVAL;
	if (crypto_skcipher_alg_ivsize(alg) != CTR_RFC3686_BLOCK_SIZE)
		goto err_drop_spawn;

	/* Not a stream cipher? */
	if (alg->base.cra_blocksize != 1)
		goto err_drop_spawn;

	err = -ENAMETOOLONG;
	if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
		     "rfc3686(%s)", alg->base.cra_name) >= CRYPTO_MAX_ALG_NAME)
		goto err_drop_spawn;
	if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
		     "rfc3686(%s)", alg->base.cra_driver_name) >=
	    CRYPTO_MAX_ALG_NAME)
		goto err_drop_spawn;

	inst->alg.base.cra_priority = alg->base.cra_priority;
	inst->alg.base.cra_blocksize = 1;
	inst->alg.base.cra_alignmask = alg->base.cra_alignmask;

	inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;

	inst->alg.ivsize = CTR_RFC3686_IV_SIZE;
	inst->alg.chunksize = crypto_skcipher_alg_chunksize(alg);
	inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg) +
				CTR_RFC3686_NONCE_SIZE;
	inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg) +
				CTR_RFC3686_NONCE_SIZE;

	inst->alg.setkey = crypto_rfc3686_setkey;
	inst->alg.encrypt = crypto_rfc3686_crypt;
	inst->alg.decrypt = crypto_rfc3686_crypt;

	inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc3686_ctx);

	inst->alg.init = crypto_rfc3686_init_tfm;
	inst->alg.exit = crypto_rfc3686_exit_tfm;

	inst->free = crypto_rfc3686_free;

	err = skcipher_register_instance(tmpl, inst);
	if (err)
		goto err_drop_spawn;

out:
	return err;

err_drop_spawn:
	crypto_drop_skcipher(spawn);
err_free_inst:
	kfree(inst);
	goto out;
}
开发者ID:abhijit-mahajani-imgtec，项目名称:linux，代码行数:91，代码来源:ctr.c


示例13: crypto_cbc_create

static int crypto_cbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct skcipher_instance *inst;
	struct crypto_attr_type *algt;
	struct crypto_spawn *spawn;
	struct crypto_alg *alg;
	u32 mask;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_SKCIPHER);
	if (err)
		return err;

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	algt = crypto_get_attr_type(tb);
	err = PTR_ERR(algt);
	if (IS_ERR(algt))
		goto err_free_inst;

	mask = CRYPTO_ALG_TYPE_MASK |
		crypto_requires_off(algt->type, algt->mask,
				    CRYPTO_ALG_NEED_FALLBACK);

	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER, mask);
	err = PTR_ERR(alg);
	if (IS_ERR(alg))
		goto err_free_inst;

	spawn = skcipher_instance_ctx(inst);
	err = crypto_init_spawn(spawn, alg, skcipher_crypto_instance(inst),
				CRYPTO_ALG_TYPE_MASK);
	crypto_mod_put(alg);
	if (err)
		goto err_free_inst;

	err = crypto_inst_setname(skcipher_crypto_instance(inst), "cbc", alg);
	if (err)
		goto err_drop_spawn;

	err = -EINVAL;
	if (!is_power_of_2(alg->cra_blocksize))
		goto err_drop_spawn;

	inst->alg.base.cra_priority = alg->cra_priority;
	inst->alg.base.cra_blocksize = alg->cra_blocksize;
	inst->alg.base.cra_alignmask = alg->cra_alignmask;

	inst->alg.ivsize = alg->cra_blocksize;
	inst->alg.min_keysize = alg->cra_cipher.cia_min_keysize;
	inst->alg.max_keysize = alg->cra_cipher.cia_max_keysize;

	inst->alg.base.cra_ctxsize = sizeof(struct crypto_cbc_ctx);

	inst->alg.init = crypto_cbc_init_tfm;
	inst->alg.exit = crypto_cbc_exit_tfm;

	inst->alg.setkey = crypto_cbc_setkey;
	inst->alg.encrypt = crypto_cbc_encrypt;
	inst->alg.decrypt = crypto_cbc_decrypt;

	inst->free = crypto_cbc_free;

	err = skcipher_register_instance(tmpl, inst);
	if (err)
		goto err_drop_spawn;

out:
	return err;

err_drop_spawn:
	crypto_drop_spawn(spawn);
err_free_inst:
	kfree(inst);
	goto out;
}
开发者ID:01org，项目名称:thunderbolt-software-kernel-tree，代码行数:78，代码来源:cbc.c


示例14: pkcs1pad_create

static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct crypto_attr_type *algt;
	struct akcipher_instance *inst;
	struct pkcs1pad_inst_ctx *ctx;
	struct crypto_akcipher_spawn *spawn;
	struct akcipher_alg *rsa_alg;
	const char *rsa_alg_name;
	const char *hash_name;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_AKCIPHER) & algt->mask)
		return -EINVAL;

	rsa_alg_name = crypto_attr_alg_name(tb[1]);
	if (IS_ERR(rsa_alg_name))
		return PTR_ERR(rsa_alg_name);

	hash_name = crypto_attr_alg_name(tb[2]);
	if (IS_ERR(hash_name))
		hash_name = NULL;

	inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	ctx = akcipher_instance_ctx(inst);
	spawn = &ctx->spawn;
	ctx->hash_name = hash_name ? kstrdup(hash_name, GFP_KERNEL) : NULL;

	crypto_set_spawn(&spawn->base, akcipher_crypto_instance(inst));
	err = crypto_grab_akcipher(spawn, rsa_alg_name, 0,
			crypto_requires_sync(algt->type, algt->mask));
	if (err)
		goto out_free_inst;

	rsa_alg = crypto_spawn_akcipher_alg(spawn);

	err = -ENAMETOOLONG;

	if (!hash_name) {
		if (snprintf(inst->alg.base.cra_name,
			     CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)",
			     rsa_alg->base.cra_name) >=
					CRYPTO_MAX_ALG_NAME ||
		    snprintf(inst->alg.base.cra_driver_name,
			     CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)",
			     rsa_alg->base.cra_driver_name) >=
					CRYPTO_MAX_ALG_NAME)
		goto out_drop_alg;
	} else {
		if (snprintf(inst->alg.base.cra_name,
			     CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s,%s)",
			     rsa_alg->base.cra_name, hash_name) >=
				CRYPTO_MAX_ALG_NAME ||
		    snprintf(inst->alg.base.cra_driver_name,
			     CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s,%s)",
			     rsa_alg->base.cra_driver_name, hash_name) >=
					CRYPTO_MAX_ALG_NAME)
		goto out_free_hash;
	}

	inst->alg.base.cra_flags = rsa_alg->base.cra_flags & CRYPTO_ALG_ASYNC;
	inst->alg.base.cra_priority = rsa_alg->base.cra_priority;
	inst->alg.base.cra_ctxsize = sizeof(struct pkcs1pad_ctx);

	inst->alg.init = pkcs1pad_init_tfm;
	inst->alg.exit = pkcs1pad_exit_tfm;

	inst->alg.encrypt = pkcs1pad_encrypt;
	inst->alg.decrypt = pkcs1pad_decrypt;
	inst->alg.sign = pkcs1pad_sign;
	inst->alg.verify = pkcs1pad_verify;
	inst->alg.set_pub_key = pkcs1pad_set_pub_key;
	inst->alg.set_priv_key = pkcs1pad_set_priv_key;
	inst->alg.max_size = pkcs1pad_get_max_size;
	inst->alg.reqsize = sizeof(struct pkcs1pad_request) + rsa_alg->reqsize;

	inst->free = pkcs1pad_free;

	err = akcipher_register_instance(tmpl, inst);
	if (err)
		goto out_free_hash;

	return 0;

out_free_hash:
	kfree(ctx->hash_name);
out_drop_alg:
	crypto_drop_akcipher(spawn);
out_free_inst:
	kfree(inst);
	return err;
}
开发者ID:1888，项目名称:linux，代码行数:98，代码来源:rsa-pkcs1pad.c


示例15: crypto_get_attr_type

static struct crypto_instance *crypto_rfc3686_alloc(struct rtattr **tb)
{
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	struct crypto_skcipher_spawn *spawn;
	const char *cipher_name;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return ERR_CAST(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_BLKCIPHER) & algt->mask)
		return ERR_PTR(-EINVAL);

	cipher_name = crypto_attr_alg_name(tb[1]);
	if (IS_ERR(cipher_name))
		return ERR_CAST(cipher_name);

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return ERR_PTR(-ENOMEM);

	spawn = crypto_instance_ctx(inst);

	crypto_set_skcipher_spawn(spawn, inst);
	err = crypto_grab_skcipher(spawn, cipher_name, 0,
				   crypto_requires_sync(algt->type,
							algt->mask));
	if (err)
		goto err_free_inst;

	alg = crypto_skcipher_spawn_alg(spawn);

	/* We only support 16-byte blocks. */
	err = -EINVAL;
	if (alg->cra_ablkcipher.ivsize != CTR_RFC3686_BLOCK_SIZE)
		goto err_drop_spawn;

	/* Not a stream cipher? */
	if (alg->cra_blocksize != 1)
		goto err_drop_spawn;

	err = -ENAMETOOLONG;
	if (snprintf(inst->alg.cra_name, CRYPTO_MAX_ALG_NAME, "rfc3686(%s)",
		     alg->cra_name) >= CRYPTO_MAX_ALG_NAME)
		goto err_drop_spawn;
	if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
		     "rfc3686(%s)", alg->cra_driver_name) >=
			CRYPTO_MAX_ALG_NAME)
		goto err_drop_spawn;

	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = 1;
	inst->alg.cra_alignmask = alg->cra_alignmask;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
			      (alg->cra_flags & CRYPTO_ALG_ASYNC);
	inst->alg.cra_type = &crypto_ablkcipher_type;

	inst->alg.cra_ablkcipher.ivsize = CTR_RFC3686_IV_SIZE;
	inst->alg.cra_ablkcipher.min_keysize =
		alg->cra_ablkcipher.min_keysize + CTR_RFC3686_NONCE_SIZE;
	inst->alg.cra_ablkcipher.max_keysize =
		alg->cra_ablkcipher.max_keysize + CTR_RFC3686_NONCE_SIZE;

	inst->alg.cra_ablkcipher.geniv = "seqiv";

	inst->alg.cra_ablkcipher.setkey = crypto_rfc3686_setkey;
	inst->alg.cra_ablkcipher.encrypt = crypto_rfc3686_crypt;
	inst->alg.cra_ablkcipher.decrypt = crypto_rfc3686_crypt;

	inst->alg.cra_ctxsize = sizeof(struct crypto_rfc3686_ctx);

	inst->alg.cra_init = crypto_rfc3686_init_tfm;
	inst->alg.cra_exit = crypto_rfc3686_exit_tfm;

	return inst;

err_drop_spawn:
	crypto_drop_skcipher(spawn);
err_free_inst:
	kfree(inst);
	return ERR_PTR(err);
}
开发者ID:03199618，项目名称:linux，代码行数:86，代码来源:ctr.c


示例16: crypto_get_attr_type

static struct crypto_instance *crypto_gcm_alloc_common(struct rtattr **tb,
        const char *full_name,
        const char *ctr_name,
        const char *ghash_name)
{
    struct crypto_attr_type *algt;
    struct crypto_instance *inst;
    struct crypto_alg *ctr;
    struct crypto_alg *ghash_alg;
    struct ahash_alg *ghash_ahash_alg;
    struct gcm_instance_ctx *ctx;
    int err;

    algt = crypto_get_attr_type(tb);
    if (IS_ERR(algt))
        return ERR_CAST(algt);

    if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
        return ERR_PTR(-EINVAL);

    ghash_alg = crypto_find_alg(ghash_name, &crypto_ahash_type,
                                CRYPTO_ALG_TYPE_HASH,
                                CRYPTO_ALG_TYPE_AHASH_MASK |
                                crypto_requires_sync(algt->type,
                                        algt->mask));
    if (IS_ERR(ghash_alg))
        return ERR_CAST(ghash_alg);

    err = -ENOMEM;
    inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
    if (!inst)
        goto out_put_ghash;

    ctx = crypto_instance_ctx(inst);
    ghash_ahash_alg = container_of(ghash_alg, struct ahash_alg, halg.base);
    err = crypto_init_ahash_spawn(&ctx->ghash, &ghash_ahash_alg->halg,
                                  inst);
    if (err)
        goto err_free_inst;

    crypto_set_skcipher_spawn(&ctx->ctr, inst);
    err = crypto_grab_skcipher(&ctx->ctr, ctr_name, 0,
                               crypto_requires_sync(algt->type,
                                       algt->mask));
    if (err)
        goto err_drop_ghash;

    ctr = crypto_skcipher_spawn_alg(&ctx->ctr);

    /* We only support 16-byte blocks. */
    if (ctr->cra_ablkcipher.ivsize != 16)
        goto out_put_ctr;

    /* Not a stream cipher? */
    err = -EINVAL;
    if (ctr->cra_blocksize != 1)
        goto out_put_ctr;

    err = -ENAMETOOLONG;
    if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
                 "gcm_base(%s,%s)", ctr->cra_driver_name,
                 ghash_alg->cra_driver_name) >=
            CRYPTO_MAX_ALG_NAME)
        goto out_put_ctr;

    memcpy(inst->alg.cra_name, full_name, CRYPTO_MAX_ALG_NAME);

    inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD;
    inst->alg.cra_flags |= ctr->cra_flags & CRYPTO_ALG_ASYNC;
    inst->alg.cra_priority = ctr->cra_priority;
    inst->alg.cra_blocksize = 1;
    inst->alg.cra_alignmask = ctr->cra_alignmask | (__alignof__(u64) - 1);
    inst->alg.cra_type = &crypto_aead_type;
    inst->alg.cra_aead.ivsize = 16;
    inst->alg.cra_aead.maxauthsize = 16;
    inst->alg.cra_ctxsize = sizeof(struct crypto_gcm_ctx);
    inst->alg.cra_init = crypto_gcm_init_tfm;
    inst->alg.cra_exit = crypto_gcm_exit_tfm;
    inst->alg.cra_aead.setkey = crypto_gcm_setkey;
    inst->alg.cra_aead.setauthsize = crypto_gcm_setauthsize;
    inst->alg.cra_aead.encrypt = crypto_gcm_encrypt;
    inst->alg.cra_aead.decrypt = crypto_gcm_decrypt;

out:
    crypto_mod_put(ghash_alg);
    return inst;

out_put_ctr:
    crypto_drop_skcipher(&ctx->ctr);
err_drop_ghash:
    crypto_drop_ahash(&ctx->ghash);
err_free_inst:
    kfree(inst);
out_put_ghash:
    inst = ERR_PTR(err);
    goto out;
}
开发者ID:jtcriswell，项目名称:linux256，代码行数:97，代码来源:gcm.c


示例17: create

static int create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct crypto_skcipher_spawn *spawn;
	struct skcipher_instance *inst;
	struct crypto_attr_type *algt;
	struct skcipher_alg *alg;
	const char *cipher_name;
	char ecb_name[CRYPTO_MAX_ALG_NAME];
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
		return -EINVAL;

	cipher_name = crypto_attr_alg_name(tb[1]);
	if (IS_ERR(cipher_name))
		return PTR_ERR(cipher_name);

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	spawn = skcipher_instance_ctx(inst);

	crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
	err = crypto_grab_skcipher(spawn, cipher_name, 0,
				   crypto_requires_sync(algt->type,
							algt->mask));
	if (err == -ENOENT) {
		err = -ENAMETOOLONG;
		if (snprintf(ecb_name, CRYPTO_MAX_ALG_NAME, "ecb(%s)",
			     cipher_name) >= CRYPTO_MAX_ALG_NAME)
			goto err_free_inst;

		err = crypto_grab_skcipher(spawn, ecb_name, 0,
					   crypto_requires_sync(algt->type,
								algt->mask));
	}

	if (err)
		goto err_free_inst;

	alg = crypto_skcipher_spawn_alg(spawn);

	err = -EINVAL;
	if (alg->base.cra_blocksize != LRW_BLOCK_SIZE)
		goto err_drop_spawn;

	if (crypto_skcipher_alg_ivsize(alg))
		goto err_drop_spawn;

	err = crypto_inst_setname(skcipher_crypto_instance(inst), "lrw",
				  &alg->base);
	if (err)
		goto err_drop_spawn;

	err = -EINVAL;
	cipher_name = alg->base.cra_name;

	/* Alas we screwed up the naming so we have to mangle the
	 * cipher name.
	 */
	if (!strncmp(cipher_name, "ecb(", 4)) {
		unsigned len;

		len = strlcpy(ecb_name, cipher_name + 4, sizeof(ecb_name));
		if (len < 2 || len >= sizeof(ecb_name))
			goto err_drop_spawn;

		if (ecb_name[len - 1] != ')')
			goto err_drop_spawn;

		ecb_name[len - 1] = 0;

		if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
			     "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME) {
			err = -ENAMETOOLONG;
			goto err_drop_spawn;
		}
	} else
		goto err_drop_spawn;

	inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
	inst->alg.base.cra_priority = alg->base.cra_priority;
	inst->alg.base.cra_blocksize = LRW_BLOCK_SIZE;
	inst->alg.base.cra_alignmask = alg->base.cra_alignmask |
				       (__alignof__(__be32) - 1);

	inst->alg.ivsize = LRW_BLOCK_SIZE;
	inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg) +
				LRW_BLOCK_SIZE;
	inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg) +
				LRW_BLOCK_SIZE;

	inst->alg.base.cra_ctxsize = sizeof(struct priv);

	inst->alg.init = init_tfm;
//.........这里部分代码省略.........
开发者ID:avagin，项目名称:linux，代码行数:101，代码来源:lrw.c


示例18: pcrypt_create_aead

static int pcrypt_create_aead(struct crypto_template *tmpl, struct rtattr **tb,
			      u32 type, u32 mask)
{
	struct pcrypt_instance_ctx *ctx;
	struct crypto_attr_type *algt;
	struct aead_instance *inst;
	struct aead_alg *alg;
	const char *name;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return PTR_ERR(algt);

	name = crypto_attr_alg_name(tb[1]);
	if (IS_ERR(name))
		return PTR_ERR(name);

	inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	ctx = aead_instance_ctx(inst);
	crypto_set_aead_spawn(&ctx->spawn, aead_crypto_instance(inst));

	err = crypto_grab_aead(&ctx->spawn, name, 0, 0);
	if (err)
		goto out_free_inst;

	alg = crypto_spawn_aead_alg(&ctx->spawn);
	err = pcrypt_init_instance(aead_crypto_instance(inst), &alg->base);
	if (err)
		goto out_drop_aead;

	inst->alg.base.cra_flags = CRYPTO_ALG_ASYNC;

	inst->alg.ivsize = crypto_aead_alg_ivsize(alg);
	inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);

	inst->alg.base.cra_ctxsize = sizeof(struct pcrypt_aead_ctx);

	inst->alg.init = pcrypt_aead_init_tfm;
	inst->alg.exit = pcrypt_aead_exit_tfm;

	inst->alg.setkey = pcrypt_aead_setkey;
	inst->alg.setauthsize = pcrypt_aead_setauthsize;
	inst->alg.encrypt = pcrypt_aead_encrypt;
	inst->alg.decrypt = pcrypt_aead_decrypt;

	inst->free = pcrypt_free;

	err = aead_register_instance(tmpl, inst);
	if (err)
		goto out_drop_aead;

out:
	return err;

out_drop_aead:
	crypto_drop_aead(&ctx->spawn);
out_free_inst:
	kfree(inst);
	goto out;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:64，代码来源:pcrypt.c



注：本文中的crypto_get_attr_type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。

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