Commit 92932d03 authored by Herbert Xu's avatar Herbert Xu

crypto: seqiv - Remove AEAD compatibility code

Now that we no longer have any legacy AEAD implementations the
compatibility code path can no longer be triggered.  This patch
removes it.
Signed-off-by: 's avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 8a2cd1c4
......@@ -66,32 +66,6 @@ static void seqiv_complete(struct crypto_async_request *base, int err)
skcipher_givcrypt_complete(req, err);
}
static void seqiv_aead_complete2(struct aead_givcrypt_request *req, int err)
{
struct aead_request *subreq = aead_givcrypt_reqctx(req);
struct crypto_aead *geniv;
if (err == -EINPROGRESS)
return;
if (err)
goto out;
geniv = aead_givcrypt_reqtfm(req);
memcpy(req->areq.iv, subreq->iv, crypto_aead_ivsize(geniv));
out:
kfree(subreq->iv);
}
static void seqiv_aead_complete(struct crypto_async_request *base, int err)
{
struct aead_givcrypt_request *req = base->data;
seqiv_aead_complete2(req, err);
aead_givcrypt_complete(req, err);
}
static void seqiv_aead_encrypt_complete2(struct aead_request *req, int err)
{
struct aead_request *subreq = aead_request_ctx(req);
......@@ -178,52 +152,6 @@ static int seqiv_givencrypt(struct skcipher_givcrypt_request *req)
return err;
}
static int seqiv_aead_givencrypt(struct aead_givcrypt_request *req)
{
struct crypto_aead *geniv = aead_givcrypt_reqtfm(req);
struct seqiv_ctx *ctx = crypto_aead_ctx(geniv);
struct aead_request *areq = &req->areq;
struct aead_request *subreq = aead_givcrypt_reqctx(req);
crypto_completion_t compl;
void *data;
u8 *info;
unsigned int ivsize;
int err;
aead_request_set_tfm(subreq, aead_geniv_base(geniv));
compl = areq->base.complete;
data = areq->base.data;
info = areq->iv;
ivsize = crypto_aead_ivsize(geniv);
if (unlikely(!IS_ALIGNED((unsigned long)info,
crypto_aead_alignmask(geniv) + 1))) {
info = kmalloc(ivsize, areq->base.flags &
CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL:
GFP_ATOMIC);
if (!info)
return -ENOMEM;
compl = seqiv_aead_complete;
data = req;
}
aead_request_set_callback(subreq, areq->base.flags, compl, data);
aead_request_set_crypt(subreq, areq->src, areq->dst, areq->cryptlen,
info);
aead_request_set_assoc(subreq, areq->assoc, areq->assoclen);
seqiv_geniv(ctx, info, req->seq, ivsize);
memcpy(req->giv, info, ivsize);
err = crypto_aead_encrypt(subreq);
if (unlikely(info != areq->iv))
seqiv_aead_complete2(req, err);
return err;
}
static int seqiv_aead_encrypt(struct aead_request *req)
{
struct crypto_aead *geniv = crypto_aead_reqtfm(req);
......@@ -330,27 +258,6 @@ static int seqiv_init(struct crypto_tfm *tfm)
return err ?: skcipher_geniv_init(tfm);
}
static int seqiv_old_aead_init(struct crypto_tfm *tfm)
{
struct crypto_aead *geniv = __crypto_aead_cast(tfm);
struct seqiv_ctx *ctx = crypto_aead_ctx(geniv);
int err;
spin_lock_init(&ctx->lock);
crypto_aead_set_reqsize(__crypto_aead_cast(tfm),
sizeof(struct aead_request));
err = 0;
if (!crypto_get_default_rng()) {
geniv->givencrypt = seqiv_aead_givencrypt;
err = crypto_rng_get_bytes(crypto_default_rng, ctx->salt,
crypto_aead_ivsize(geniv));
crypto_put_default_rng();
}
return err ?: aead_geniv_init(tfm);
}
static int seqiv_aead_init_common(struct crypto_aead *geniv,
unsigned int reqsize)
{
......@@ -439,33 +346,6 @@ static int seqiv_ablkcipher_create(struct crypto_template *tmpl,
goto out;
}
static int seqiv_old_aead_create(struct crypto_template *tmpl,
struct aead_instance *aead)
{
struct crypto_instance *inst = aead_crypto_instance(aead);
int err = -EINVAL;
if (inst->alg.cra_aead.ivsize < sizeof(u64))
goto free_inst;
inst->alg.cra_init = seqiv_old_aead_init;
inst->alg.cra_exit = aead_geniv_exit;
inst->alg.cra_ctxsize = inst->alg.cra_aead.ivsize;
inst->alg.cra_ctxsize += sizeof(struct seqiv_ctx);
err = crypto_register_instance(tmpl, inst);
if (err)
goto free_inst;
out:
return err;
free_inst:
aead_geniv_free(aead);
goto out;
}
static int seqiv_aead_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct aead_instance *inst;
......@@ -480,15 +360,9 @@ static int seqiv_aead_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.base.cra_alignmask |= __alignof__(u32) - 1;
if (inst->alg.base.cra_aead.encrypt)
return seqiv_old_aead_create(tmpl, inst);
spawn = aead_instance_ctx(inst);
alg = crypto_spawn_aead_alg(spawn);
if (alg->base.cra_aead.encrypt)
goto done;
err = -EINVAL;
if (inst->alg.ivsize != sizeof(u64))
goto free_inst;
......@@ -502,7 +376,6 @@ static int seqiv_aead_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.base.cra_ctxsize = sizeof(struct seqiv_aead_ctx);
inst->alg.base.cra_ctxsize += inst->alg.ivsize;
done:
err = aead_register_instance(tmpl, inst);
if (err)
goto free_inst;
......
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