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https://github.com/FEX-Emu/linux.git
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crypto: algif - move to generic async completion
algif starts several async crypto ops and waits for their completion. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -481,33 +481,6 @@ int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con)
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}
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EXPORT_SYMBOL_GPL(af_alg_cmsg_send);
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int af_alg_wait_for_completion(int err, struct af_alg_completion *completion)
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{
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switch (err) {
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case -EINPROGRESS:
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case -EBUSY:
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wait_for_completion(&completion->completion);
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reinit_completion(&completion->completion);
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err = completion->err;
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break;
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};
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return err;
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}
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EXPORT_SYMBOL_GPL(af_alg_wait_for_completion);
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void af_alg_complete(struct crypto_async_request *req, int err)
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{
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struct af_alg_completion *completion = req->data;
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if (err == -EINPROGRESS)
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return;
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completion->err = err;
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complete(&completion->completion);
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}
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EXPORT_SYMBOL_GPL(af_alg_complete);
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/**
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* af_alg_alloc_tsgl - allocate the TX SGL
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*
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@ -278,11 +278,11 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg,
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/* Synchronous operation */
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aead_request_set_callback(&areq->cra_u.aead_req,
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CRYPTO_TFM_REQ_MAY_BACKLOG,
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af_alg_complete, &ctx->completion);
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err = af_alg_wait_for_completion(ctx->enc ?
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crypto_req_done, &ctx->wait);
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err = crypto_wait_req(ctx->enc ?
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crypto_aead_encrypt(&areq->cra_u.aead_req) :
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crypto_aead_decrypt(&areq->cra_u.aead_req),
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&ctx->completion);
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&ctx->wait);
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}
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/* AIO operation in progress */
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@ -554,7 +554,7 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk)
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ctx->merge = 0;
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ctx->enc = 0;
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ctx->aead_assoclen = 0;
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af_alg_init_completion(&ctx->completion);
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crypto_init_wait(&ctx->wait);
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ask->private = ctx;
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@ -26,7 +26,7 @@ struct hash_ctx {
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u8 *result;
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struct af_alg_completion completion;
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struct crypto_wait wait;
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unsigned int len;
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bool more;
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@ -88,8 +88,7 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
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if ((msg->msg_flags & MSG_MORE))
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hash_free_result(sk, ctx);
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err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req),
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&ctx->completion);
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err = crypto_wait_req(crypto_ahash_init(&ctx->req), &ctx->wait);
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if (err)
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goto unlock;
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}
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@ -110,8 +109,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
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ahash_request_set_crypt(&ctx->req, ctx->sgl.sg, NULL, len);
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err = af_alg_wait_for_completion(crypto_ahash_update(&ctx->req),
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&ctx->completion);
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err = crypto_wait_req(crypto_ahash_update(&ctx->req),
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&ctx->wait);
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af_alg_free_sg(&ctx->sgl);
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if (err)
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goto unlock;
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@ -129,8 +128,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
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goto unlock;
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ahash_request_set_crypt(&ctx->req, NULL, ctx->result, 0);
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err = af_alg_wait_for_completion(crypto_ahash_final(&ctx->req),
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&ctx->completion);
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err = crypto_wait_req(crypto_ahash_final(&ctx->req),
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&ctx->wait);
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}
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unlock:
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@ -171,7 +170,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
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} else {
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if (!ctx->more) {
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err = crypto_ahash_init(&ctx->req);
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err = af_alg_wait_for_completion(err, &ctx->completion);
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err = crypto_wait_req(err, &ctx->wait);
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if (err)
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goto unlock;
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}
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@ -179,7 +178,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
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err = crypto_ahash_update(&ctx->req);
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}
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err = af_alg_wait_for_completion(err, &ctx->completion);
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err = crypto_wait_req(err, &ctx->wait);
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if (err)
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goto unlock;
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@ -215,17 +214,16 @@ static int hash_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
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ahash_request_set_crypt(&ctx->req, NULL, ctx->result, 0);
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if (!result && !ctx->more) {
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err = af_alg_wait_for_completion(
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crypto_ahash_init(&ctx->req),
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&ctx->completion);
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err = crypto_wait_req(crypto_ahash_init(&ctx->req),
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&ctx->wait);
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if (err)
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goto unlock;
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}
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if (!result || ctx->more) {
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ctx->more = 0;
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err = af_alg_wait_for_completion(crypto_ahash_final(&ctx->req),
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&ctx->completion);
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err = crypto_wait_req(crypto_ahash_final(&ctx->req),
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&ctx->wait);
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if (err)
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goto unlock;
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}
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@ -476,13 +474,13 @@ static int hash_accept_parent_nokey(void *private, struct sock *sk)
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ctx->result = NULL;
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ctx->len = len;
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ctx->more = 0;
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af_alg_init_completion(&ctx->completion);
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crypto_init_wait(&ctx->wait);
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ask->private = ctx;
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ahash_request_set_tfm(&ctx->req, hash);
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ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
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af_alg_complete, &ctx->completion);
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crypto_req_done, &ctx->wait);
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sk->sk_destruct = hash_sock_destruct;
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@ -129,12 +129,11 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg,
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skcipher_request_set_callback(&areq->cra_u.skcipher_req,
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CRYPTO_TFM_REQ_MAY_SLEEP |
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CRYPTO_TFM_REQ_MAY_BACKLOG,
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af_alg_complete,
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&ctx->completion);
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err = af_alg_wait_for_completion(ctx->enc ?
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crypto_req_done, &ctx->wait);
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err = crypto_wait_req(ctx->enc ?
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crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) :
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crypto_skcipher_decrypt(&areq->cra_u.skcipher_req),
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&ctx->completion);
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&ctx->wait);
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}
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/* AIO operation in progress */
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@ -388,7 +387,7 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
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ctx->more = 0;
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ctx->merge = 0;
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ctx->enc = 0;
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af_alg_init_completion(&ctx->completion);
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crypto_init_wait(&ctx->wait);
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ask->private = ctx;
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@ -40,11 +40,6 @@ struct alg_sock {
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void *private;
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};
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struct af_alg_completion {
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struct completion completion;
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int err;
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};
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struct af_alg_control {
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struct af_alg_iv *iv;
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int op;
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@ -152,7 +147,7 @@ struct af_alg_ctx {
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void *iv;
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size_t aead_assoclen;
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struct af_alg_completion completion;
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struct crypto_wait wait;
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size_t used;
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size_t rcvused;
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@ -177,19 +172,11 @@ void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new);
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int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con);
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int af_alg_wait_for_completion(int err, struct af_alg_completion *completion);
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void af_alg_complete(struct crypto_async_request *req, int err);
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static inline struct alg_sock *alg_sk(struct sock *sk)
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{
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return (struct alg_sock *)sk;
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}
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static inline void af_alg_init_completion(struct af_alg_completion *completion)
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{
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init_completion(&completion->completion);
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}
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/**
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* Size of available buffer for sending data from user space to kernel.
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*
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