static int pcrypt_aead_init_tfm(struct crypto_tfm *tfm)
{
int cpu, cpu_index;
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct pcrypt_instance_ctx *ictx = crypto_instance_ctx(inst);
struct pcrypt_aead_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aead *cipher;
ictx->tfm_count++;
cpu_index = ictx->tfm_count % cpumask_weight(cpu_online_mask);
ctx->cb_cpu = cpumask_first(cpu_online_mask);
for (cpu = 0; cpu < cpu_index; cpu++)
ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask);
cipher = crypto_spawn_aead(crypto_instance_ctx(inst));
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
tfm->crt_aead.reqsize = sizeof(struct pcrypt_request)
+ sizeof(struct aead_givcrypt_request)
+ crypto_aead_reqsize(cipher);
return 0;
}
static int pcrypt_aead_init_tfm(struct crypto_tfm *tfm)
{
int cpu, cpu_index;
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct pcrypt_instance_ctx *ictx = crypto_instance_ctx(inst);
struct pcrypt_aead_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aead *cipher;
ictx->tfm_count++;
<<<<<<< HEAD
static int cryptd_blkcipher_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct cryptd_instance_ctx *ictx = crypto_instance_ctx(inst);
struct crypto_spawn *spawn = &ictx->spawn;
struct cryptd_blkcipher_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_blkcipher *cipher;
cipher = crypto_spawn_blkcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
tfm->crt_ablkcipher.reqsize =
sizeof(struct cryptd_blkcipher_request_ctx);
return 0;
}
static int crypto_fpu_encrypt(struct blkcipher_desc *desc_in,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
int err;
struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
struct crypto_blkcipher *child = ctx->child;
struct blkcipher_desc desc = {
.tfm = child,
.info = desc_in->info,
.flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
};
kernel_fpu_begin();
err = crypto_blkcipher_crt(desc.tfm)->encrypt(&desc, dst, src, nbytes);
kernel_fpu_end();
return err;
}
static int crypto_fpu_decrypt(struct blkcipher_desc *desc_in,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
int err;
struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
struct crypto_blkcipher *child = ctx->child;
struct blkcipher_desc desc = {
.tfm = child,
.info = desc_in->info,
.flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
};
kernel_fpu_begin();
err = crypto_blkcipher_crt(desc.tfm)->decrypt(&desc, dst, src, nbytes);
kernel_fpu_end();
return err;
}
static int crypto_fpu_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct crypto_spawn *spawn = crypto_instance_ctx(inst);
struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_blkcipher *cipher;
cipher = crypto_spawn_blkcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
return 0;
}
static void crypto_fpu_exit_tfm(struct crypto_tfm *tfm)
{
struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_free_blkcipher(ctx->child);
}
static struct crypto_instance *crypto_fpu_alloc(struct rtattr **tb)
{
struct crypto_instance *inst;
struct crypto_alg *alg;
int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
if (err)
return ERR_PTR(err);
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_BLKCIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
return ERR_CAST(alg);
inst = crypto_alloc_instance("fpu", alg);
if (IS_ERR(inst))
goto out_put_alg;
inst->alg.cra_flags = alg->cra_flags;
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 = alg->cra_type;
inst->alg.cra_blkcipher.ivsize = alg->cra_blkcipher.ivsize;
inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
inst->alg.cra_ctxsize = sizeof(struct crypto_fpu_ctx);
inst->alg.cra_init = crypto_fpu_init_tfm;
inst->alg.cra_exit = crypto_fpu_exit_tfm;
inst->alg.cra_blkcipher.setkey = crypto_fpu_setkey;
inst->alg.cra_blkcipher.encrypt = crypto_fpu_encrypt;
inst->alg.cra_blkcipher.decrypt = crypto_fpu_decrypt;
out_put_alg:
crypto_mod_put(alg);
return inst;
}
static void crypto_fpu_free(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
kfree(inst);
}
static inline struct cryptd_state *cryptd_get_state(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct cryptd_instance_ctx *ictx = crypto_instance_ctx(inst);
return ictx->state;
}