Linux-libre 4.8.3-gnupck-4.8.3-gnu

2 files changed, 0 insertions, 559 deletions

diff --git a/crypto/chainiv.c b/crypto/chainiv.c
deleted file mode 100644
index b4340018c..000000000
--- a/crypto/chainiv.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
- * chainiv: Chain IV Generator
- *
- * Generate IVs simply be using the last block of the previous encryption.
- * This is mainly useful for CBC with a synchronous algorithm.
- *
- * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <crypto/internal/skcipher.h>
-#include <crypto/rng.h>
-#include <crypto/crypto_wq.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/workqueue.h>
-
-enum {
-	CHAINIV_STATE_INUSE = 0,
-};
-
-struct chainiv_ctx {
-	spinlock_t lock;
-	char iv[];
-};
-
-struct async_chainiv_ctx {
-	unsigned long state;
-
-	spinlock_t lock;
-	int err;
-
-	struct crypto_queue queue;
-	struct work_struct postponed;
-
-	char iv[];
-};
-
-static int chainiv_givencrypt(struct skcipher_givcrypt_request *req)
-{
-	struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req);
-	struct chainiv_ctx *ctx = crypto_ablkcipher_ctx(geniv);
-	struct ablkcipher_request *subreq = skcipher_givcrypt_reqctx(req);
-	unsigned int ivsize;
-	int err;
-
-	ablkcipher_request_set_tfm(subreq, skcipher_geniv_cipher(geniv));
-	ablkcipher_request_set_callback(subreq, req->creq.base.flags &
-						~CRYPTO_TFM_REQ_MAY_SLEEP,
-					req->creq.base.complete,
-					req->creq.base.data);
-	ablkcipher_request_set_crypt(subreq, req->creq.src, req->creq.dst,
-				     req->creq.nbytes, req->creq.info);
-
-	spin_lock_bh(&ctx->lock);
-
-	ivsize = crypto_ablkcipher_ivsize(geniv);
-
-	memcpy(req->giv, ctx->iv, ivsize);
-	memcpy(subreq->info, ctx->iv, ivsize);
-
-	err = crypto_ablkcipher_encrypt(subreq);
-	if (err)
-		goto unlock;
-
-	memcpy(ctx->iv, subreq->info, ivsize);
-
-unlock:
-	spin_unlock_bh(&ctx->lock);
-
-	return err;
-}
-
-static int chainiv_init_common(struct crypto_tfm *tfm, char iv[])
-{
-	struct crypto_ablkcipher *geniv = __crypto_ablkcipher_cast(tfm);
-	int err = 0;
-
-	tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request);
-
-	if (iv) {
-		err = crypto_rng_get_bytes(crypto_default_rng, iv,
-					   crypto_ablkcipher_ivsize(geniv));
-		crypto_put_default_rng();
-	}
-
-	return err ?: skcipher_geniv_init(tfm);
-}
-
-static int chainiv_init(struct crypto_tfm *tfm)
-{
-	struct crypto_ablkcipher *geniv = __crypto_ablkcipher_cast(tfm);
-	struct chainiv_ctx *ctx = crypto_tfm_ctx(tfm);
-	char *iv;
-
-	spin_lock_init(&ctx->lock);
-
-	iv = NULL;
-	if (!crypto_get_default_rng()) {
-		crypto_ablkcipher_crt(geniv)->givencrypt = chainiv_givencrypt;
-		iv = ctx->iv;
-	}
-
-	return chainiv_init_common(tfm, iv);
-}
-
-static int async_chainiv_schedule_work(struct async_chainiv_ctx *ctx)
-{
-	int queued;
-	int err = ctx->err;
-
-	if (!ctx->queue.qlen) {
-		smp_mb__before_atomic();
-		clear_bit(CHAINIV_STATE_INUSE, &ctx->state);
-
-		if (!ctx->queue.qlen ||
-		    test_and_set_bit(CHAINIV_STATE_INUSE, &ctx->state))
-			goto out;
-	}
-
-	queued = queue_work(kcrypto_wq, &ctx->postponed);
-	BUG_ON(!queued);
-
-out:
-	return err;
-}
-
-static int async_chainiv_postpone_request(struct skcipher_givcrypt_request *req)
-{
-	struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req);
-	struct async_chainiv_ctx *ctx = crypto_ablkcipher_ctx(geniv);
-	int err;
-
-	spin_lock_bh(&ctx->lock);
-	err = skcipher_enqueue_givcrypt(&ctx->queue, req);
-	spin_unlock_bh(&ctx->lock);
-
-	if (test_and_set_bit(CHAINIV_STATE_INUSE, &ctx->state))
-		return err;
-
-	ctx->err = err;
-	return async_chainiv_schedule_work(ctx);
-}
-
-static int async_chainiv_givencrypt_tail(struct skcipher_givcrypt_request *req)
-{
-	struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req);
-	struct async_chainiv_ctx *ctx = crypto_ablkcipher_ctx(geniv);
-	struct ablkcipher_request *subreq = skcipher_givcrypt_reqctx(req);
-	unsigned int ivsize = crypto_ablkcipher_ivsize(geniv);
-
-	memcpy(req->giv, ctx->iv, ivsize);
-	memcpy(subreq->info, ctx->iv, ivsize);
-
-	ctx->err = crypto_ablkcipher_encrypt(subreq);
-	if (ctx->err)
-		goto out;
-
-	memcpy(ctx->iv, subreq->info, ivsize);
-
-out:
-	return async_chainiv_schedule_work(ctx);
-}
-
-static int async_chainiv_givencrypt(struct skcipher_givcrypt_request *req)
-{
-	struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req);
-	struct async_chainiv_ctx *ctx = crypto_ablkcipher_ctx(geniv);
-	struct ablkcipher_request *subreq = skcipher_givcrypt_reqctx(req);
-
-	ablkcipher_request_set_tfm(subreq, skcipher_geniv_cipher(geniv));
-	ablkcipher_request_set_callback(subreq, req->creq.base.flags,
-					req->creq.base.complete,
-					req->creq.base.data);
-	ablkcipher_request_set_crypt(subreq, req->creq.src, req->creq.dst,
-				     req->creq.nbytes, req->creq.info);
-
-	if (test_and_set_bit(CHAINIV_STATE_INUSE, &ctx->state))
-		goto postpone;
-
-	if (ctx->queue.qlen) {
-		clear_bit(CHAINIV_STATE_INUSE, &ctx->state);
-		goto postpone;
-	}
-
-	return async_chainiv_givencrypt_tail(req);
-
-postpone:
-	return async_chainiv_postpone_request(req);
-}
-
-static void async_chainiv_do_postponed(struct work_struct *work)
-{
-	struct async_chainiv_ctx *ctx = container_of(work,
-						     struct async_chainiv_ctx,
-						     postponed);
-	struct skcipher_givcrypt_request *req;
-	struct ablkcipher_request *subreq;
-	int err;
-
-	/* Only handle one request at a time to avoid hogging keventd. */
-	spin_lock_bh(&ctx->lock);
-	req = skcipher_dequeue_givcrypt(&ctx->queue);
-	spin_unlock_bh(&ctx->lock);
-
-	if (!req) {
-		async_chainiv_schedule_work(ctx);
-		return;
-	}
-
-	subreq = skcipher_givcrypt_reqctx(req);
-	subreq->base.flags |= CRYPTO_TFM_REQ_MAY_SLEEP;
-
-	err = async_chainiv_givencrypt_tail(req);
-
-	local_bh_disable();
-	skcipher_givcrypt_complete(req, err);
-	local_bh_enable();
-}
-
-static int async_chainiv_init(struct crypto_tfm *tfm)
-{
-	struct crypto_ablkcipher *geniv = __crypto_ablkcipher_cast(tfm);
-	struct async_chainiv_ctx *ctx = crypto_tfm_ctx(tfm);
-	char *iv;
-
-	spin_lock_init(&ctx->lock);
-
-	crypto_init_queue(&ctx->queue, 100);
-	INIT_WORK(&ctx->postponed, async_chainiv_do_postponed);
-
-	iv = NULL;
-	if (!crypto_get_default_rng()) {
-		crypto_ablkcipher_crt(geniv)->givencrypt =
-			async_chainiv_givencrypt;
-		iv = ctx->iv;
-	}
-
-	return chainiv_init_common(tfm, iv);
-}
-
-static void async_chainiv_exit(struct crypto_tfm *tfm)
-{
-	struct async_chainiv_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	BUG_ON(test_bit(CHAINIV_STATE_INUSE, &ctx->state) || ctx->queue.qlen);
-
-	skcipher_geniv_exit(tfm);
-}
-
-static struct crypto_template chainiv_tmpl;
-
-static struct crypto_instance *chainiv_alloc(struct rtattr **tb)
-{
-	struct crypto_attr_type *algt;
-	struct crypto_instance *inst;
-
-	algt = crypto_get_attr_type(tb);
-	if (IS_ERR(algt))
-		return ERR_CAST(algt);
-
-	inst = skcipher_geniv_alloc(&chainiv_tmpl, tb, 0, 0);
-	if (IS_ERR(inst))
-		goto out;
-
-	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_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;
-}
-
-static struct crypto_template chainiv_tmpl = {
-	.name = "chainiv",
-	.alloc = chainiv_alloc,
-	.free = skcipher_geniv_free,
-	.module = THIS_MODULE,
-};
-
-static int __init chainiv_module_init(void)
-{
-	return crypto_register_template(&chainiv_tmpl);
-}
-
-static void chainiv_module_exit(void)
-{
-	crypto_unregister_template(&chainiv_tmpl);
-}
-
-module_init(chainiv_module_init);
-module_exit(chainiv_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Chain IV Generator");
-MODULE_ALIAS_CRYPTO("chainiv");
diff --git a/crypto/eseqiv.c b/crypto/eseqiv.c
deleted file mode 100644
index 16dda72fc..000000000
--- a/crypto/eseqiv.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * eseqiv: Encrypted Sequence Number IV Generator
- *
- * This generator generates an IV based on a sequence number by xoring it
- * with a salt and then encrypting it with the same key as used to encrypt
- * the plain text.  This algorithm requires that the block size be equal
- * to the IV size.  It is mainly useful for CBC.
- *
- * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <crypto/internal/skcipher.h>
-#include <crypto/rng.h>
-#include <crypto/scatterwalk.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/scatterlist.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-
-struct eseqiv_request_ctx {
-	struct scatterlist src[2];
-	struct scatterlist dst[2];
-	char tail[];
-};
-
-struct eseqiv_ctx {
-	spinlock_t lock;
-	unsigned int reqoff;
-	char salt[];
-};
-
-static void eseqiv_complete2(struct skcipher_givcrypt_request *req)
-{
-	struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req);
-	struct eseqiv_request_ctx *reqctx = skcipher_givcrypt_reqctx(req);
-
-	memcpy(req->giv, PTR_ALIGN((u8 *)reqctx->tail,
-			 crypto_ablkcipher_alignmask(geniv) + 1),
-	       crypto_ablkcipher_ivsize(geniv));
-}
-
-static void eseqiv_complete(struct crypto_async_request *base, int err)
-{
-	struct skcipher_givcrypt_request *req = base->data;
-
-	if (err)
-		goto out;
-
-	eseqiv_complete2(req);
-
-out:
-	skcipher_givcrypt_complete(req, err);
-}
-
-static int eseqiv_givencrypt(struct skcipher_givcrypt_request *req)
-{
-	struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req);
-	struct eseqiv_ctx *ctx = crypto_ablkcipher_ctx(geniv);
-	struct eseqiv_request_ctx *reqctx = skcipher_givcrypt_reqctx(req);
-	struct ablkcipher_request *subreq;
-	crypto_completion_t compl;
-	void *data;
-	struct scatterlist *osrc, *odst;
-	struct scatterlist *dst;
-	struct page *srcp;
-	struct page *dstp;
-	u8 *giv;
-	u8 *vsrc;
-	u8 *vdst;
-	__be64 seq;
-	unsigned int ivsize;
-	unsigned int len;
-	int err;
-
-	subreq = (void *)(reqctx->tail + ctx->reqoff);
-	ablkcipher_request_set_tfm(subreq, skcipher_geniv_cipher(geniv));
-
-	giv = req->giv;
-	compl = req->creq.base.complete;
-	data = req->creq.base.data;
-
-	osrc = req->creq.src;
-	odst = req->creq.dst;
-	srcp = sg_page(osrc);
-	dstp = sg_page(odst);
-	vsrc = PageHighMem(srcp) ? NULL : page_address(srcp) + osrc->offset;
-	vdst = PageHighMem(dstp) ? NULL : page_address(dstp) + odst->offset;
-
-	ivsize = crypto_ablkcipher_ivsize(geniv);
-
-	if (vsrc != giv + ivsize && vdst != giv + ivsize) {
-		giv = PTR_ALIGN((u8 *)reqctx->tail,
-				crypto_ablkcipher_alignmask(geniv) + 1);
-		compl = eseqiv_complete;
-		data = req;
-	}
-
-	ablkcipher_request_set_callback(subreq, req->creq.base.flags, compl,
-					data);
-
-	sg_init_table(reqctx->src, 2);
-	sg_set_buf(reqctx->src, giv, ivsize);
-	scatterwalk_crypto_chain(reqctx->src, osrc, vsrc == giv + ivsize, 2);
-
-	dst = reqctx->src;
-	if (osrc != odst) {
-		sg_init_table(reqctx->dst, 2);
-		sg_set_buf(reqctx->dst, giv, ivsize);
-		scatterwalk_crypto_chain(reqctx->dst, odst, vdst == giv + ivsize, 2);
-
-		dst = reqctx->dst;
-	}
-
-	ablkcipher_request_set_crypt(subreq, reqctx->src, dst,
-				     req->creq.nbytes + ivsize,
-				     req->creq.info);
-
-	memcpy(req->creq.info, ctx->salt, ivsize);
-
-	len = ivsize;
-	if (ivsize > sizeof(u64)) {
-		memset(req->giv, 0, ivsize - sizeof(u64));
-		len = sizeof(u64);
-	}
-	seq = cpu_to_be64(req->seq);
-	memcpy(req->giv + ivsize - len, &seq, len);
-
-	err = crypto_ablkcipher_encrypt(subreq);
-	if (err)
-		goto out;
-
-	if (giv != req->giv)
-		eseqiv_complete2(req);
-
-out:
-	return err;
-}
-
-static int eseqiv_init(struct crypto_tfm *tfm)
-{
-	struct crypto_ablkcipher *geniv = __crypto_ablkcipher_cast(tfm);
-	struct eseqiv_ctx *ctx = crypto_ablkcipher_ctx(geniv);
-	unsigned long alignmask;
-	unsigned int reqsize;
-	int err;
-
-	spin_lock_init(&ctx->lock);
-
-	alignmask = crypto_tfm_ctx_alignment() - 1;
-	reqsize = sizeof(struct eseqiv_request_ctx);
-
-	if (alignmask & reqsize) {
-		alignmask &= reqsize;
-		alignmask--;
-	}
-
-	alignmask = ~alignmask;
-	alignmask &= crypto_ablkcipher_alignmask(geniv);
-
-	reqsize += alignmask;
-	reqsize += crypto_ablkcipher_ivsize(geniv);
-	reqsize = ALIGN(reqsize, crypto_tfm_ctx_alignment());
-
-	ctx->reqoff = reqsize - sizeof(struct eseqiv_request_ctx);
-
-	tfm->crt_ablkcipher.reqsize = reqsize +
-				      sizeof(struct ablkcipher_request);
-
-	err = 0;
-	if (!crypto_get_default_rng()) {
-		crypto_ablkcipher_crt(geniv)->givencrypt = eseqiv_givencrypt;
-		err = crypto_rng_get_bytes(crypto_default_rng, ctx->salt,
-					   crypto_ablkcipher_ivsize(geniv));
-		crypto_put_default_rng();
-	}
-
-	return err ?: skcipher_geniv_init(tfm);
-}
-
-static struct crypto_template eseqiv_tmpl;
-
-static struct crypto_instance *eseqiv_alloc(struct rtattr **tb)
-{
-	struct crypto_instance *inst;
-	int err;
-
-	inst = skcipher_geniv_alloc(&eseqiv_tmpl, tb, 0, 0);
-	if (IS_ERR(inst))
-		goto out;
-
-	err = -EINVAL;
-	if (inst->alg.cra_ablkcipher.ivsize != inst->alg.cra_blocksize)
-		goto free_inst;
-
-	inst->alg.cra_init = eseqiv_init;
-	inst->alg.cra_exit = skcipher_geniv_exit;
-
-	inst->alg.cra_ctxsize = sizeof(struct eseqiv_ctx);
-	inst->alg.cra_ctxsize += inst->alg.cra_ablkcipher.ivsize;
-
-out:
-	return inst;
-
-free_inst:
-	skcipher_geniv_free(inst);
-	inst = ERR_PTR(err);
-	goto out;
-}
-
-static struct crypto_template eseqiv_tmpl = {
-	.name = "eseqiv",
-	.alloc = eseqiv_alloc,
-	.free = skcipher_geniv_free,
-	.module = THIS_MODULE,
-};
-
-static int __init eseqiv_module_init(void)
-{
-	return crypto_register_template(&eseqiv_tmpl);
-}
-
-static void __exit eseqiv_module_exit(void)
-{
-	crypto_unregister_template(&eseqiv_tmpl);
-}
-
-module_init(eseqiv_module_init);
-module_exit(eseqiv_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Encrypted Sequence Number IV Generator");
-MODULE_ALIAS_CRYPTO("eseqiv");