From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/include/crypto/algapi.h | 285 ++++++++++----------------------------------------------
1 files changed, 54 insertions(+), 231 deletions(-)
diff --git a/kernel/include/crypto/algapi.h b/kernel/include/crypto/algapi.h
index bd5e8cc..86f0748 100644
--- a/kernel/include/crypto/algapi.h
+++ b/kernel/include/crypto/algapi.h
@@ -1,13 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Cryptographic API for algorithms (i.e., low-level API).
*
* Copyright (c) 2006 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.
- *
*/
#ifndef _CRYPTO_ALGAPI_H
#define _CRYPTO_ALGAPI_H
@@ -15,13 +10,14 @@
#include <linux/crypto.h>
#include <linux/list.h>
#include <linux/kernel.h>
-#include <linux/skbuff.h>
/*
* Maximum values for blocksize and alignmask, used to allocate
* static buffers that are big enough for any combination of
- * ciphers and architectures.
+ * algs and architectures. Ciphers have a lower maximum size.
*/
+#define MAX_ALGAPI_BLOCKSIZE 160
+#define MAX_ALGAPI_ALIGNMASK 63
#define MAX_CIPHER_BLOCKSIZE 16
#define MAX_CIPHER_ALIGNMASK 15
@@ -30,6 +26,7 @@
struct module;
struct rtattr;
struct seq_file;
+struct sk_buff;
struct crypto_type {
unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask);
@@ -50,7 +47,13 @@
struct crypto_alg alg;
struct crypto_template *tmpl;
- struct hlist_node list;
+
+ union {
+ /* Node in list of instances after registration. */
+ struct hlist_node list;
+ /* List of attached spawns before registration. */
+ struct crypto_spawn *spawns;
+ };
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
@@ -60,8 +63,6 @@
struct hlist_head instances;
struct module *module;
- struct crypto_instance *(*alloc)(struct rtattr **tb);
- void (*free)(struct crypto_instance *inst);
int (*create)(struct crypto_template *tmpl, struct rtattr **tb);
char name[CRYPTO_MAX_ALG_NAME];
@@ -70,9 +71,16 @@
struct crypto_spawn {
struct list_head list;
struct crypto_alg *alg;
- struct crypto_instance *inst;
+ union {
+ /* Back pointer to instance after registration.*/
+ struct crypto_instance *inst;
+ /* Spawn list pointer prior to registration. */
+ struct crypto_spawn *next;
+ };
const struct crypto_type *frontend;
u32 mask;
+ bool dead;
+ bool registered;
};
struct crypto_queue {
@@ -88,111 +96,38 @@
unsigned int offset;
};
-struct blkcipher_walk {
- union {
- struct {
- struct page *page;
- unsigned long offset;
- } phys;
-
- struct {
- u8 *page;
- u8 *addr;
- } virt;
- } src, dst;
-
- struct scatter_walk in;
- unsigned int nbytes;
-
- struct scatter_walk out;
- unsigned int total;
-
- void *page;
- u8 *buffer;
- u8 *iv;
- unsigned int ivsize;
-
- int flags;
- unsigned int walk_blocksize;
- unsigned int cipher_blocksize;
- unsigned int alignmask;
-};
-
-struct ablkcipher_walk {
- struct {
- struct page *page;
- unsigned int offset;
- } src, dst;
-
- struct scatter_walk in;
- unsigned int nbytes;
- struct scatter_walk out;
- unsigned int total;
- struct list_head buffers;
- u8 *iv_buffer;
- u8 *iv;
- int flags;
- unsigned int blocksize;
-};
-
-extern const struct crypto_type crypto_ablkcipher_type;
-extern const struct crypto_type crypto_blkcipher_type;
-
void crypto_mod_put(struct crypto_alg *alg);
int crypto_register_template(struct crypto_template *tmpl);
+int crypto_register_templates(struct crypto_template *tmpls, int count);
void crypto_unregister_template(struct crypto_template *tmpl);
+void crypto_unregister_templates(struct crypto_template *tmpls, int count);
struct crypto_template *crypto_lookup_template(const char *name);
int crypto_register_instance(struct crypto_template *tmpl,
struct crypto_instance *inst);
-int crypto_unregister_instance(struct crypto_instance *inst);
+void crypto_unregister_instance(struct crypto_instance *inst);
-int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
- struct crypto_instance *inst, u32 mask);
-int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg,
- struct crypto_instance *inst,
- const struct crypto_type *frontend);
-int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name,
- u32 type, u32 mask);
-
+int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
void crypto_drop_spawn(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
u32 mask);
void *crypto_spawn_tfm2(struct crypto_spawn *spawn);
-static inline void crypto_set_spawn(struct crypto_spawn *spawn,
- struct crypto_instance *inst)
-{
- spawn->inst = inst;
-}
-
struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
-int crypto_check_attr_type(struct rtattr **tb, u32 type);
+int crypto_check_attr_type(struct rtattr **tb, u32 type, u32 *mask_ret);
const char *crypto_attr_alg_name(struct rtattr *rta);
-struct crypto_alg *crypto_attr_alg2(struct rtattr *rta,
- const struct crypto_type *frontend,
- u32 type, u32 mask);
-
-static inline struct crypto_alg *crypto_attr_alg(struct rtattr *rta,
- u32 type, u32 mask)
-{
- return crypto_attr_alg2(rta, NULL, type, mask);
-}
-
int crypto_attr_u32(struct rtattr *rta, u32 *num);
int crypto_inst_setname(struct crypto_instance *inst, const char *name,
struct crypto_alg *alg);
-void *crypto_alloc_instance2(const char *name, struct crypto_alg *alg,
- unsigned int head);
-struct crypto_instance *crypto_alloc_instance(const char *name,
- struct crypto_alg *alg);
void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen);
int crypto_enqueue_request(struct crypto_queue *queue,
struct crypto_async_request *request);
+void crypto_enqueue_request_head(struct crypto_queue *queue,
+ struct crypto_async_request *request);
struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue);
-int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm);
static inline unsigned int crypto_queue_len(struct crypto_queue *queue)
{
return queue->qlen;
@@ -237,26 +172,6 @@
}
}
-int blkcipher_walk_done(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk, int err);
-int blkcipher_walk_virt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk);
-int blkcipher_walk_phys(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk);
-int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk,
- unsigned int blocksize);
-int blkcipher_aead_walk_virt_block(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk,
- struct crypto_aead *tfm,
- unsigned int blocksize);
-
-int ablkcipher_walk_done(struct ablkcipher_request *req,
- struct ablkcipher_walk *walk, int err);
-int ablkcipher_walk_phys(struct ablkcipher_request *req,
- struct ablkcipher_walk *walk);
-void __ablkcipher_walk_complete(struct ablkcipher_walk *walk);
-
static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
{
return PTR_ALIGN(crypto_tfm_ctx(tfm),
@@ -274,82 +189,6 @@
return inst->__ctx;
}
-static inline struct ablkcipher_alg *crypto_ablkcipher_alg(
- struct crypto_ablkcipher *tfm)
-{
- return &crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_ablkcipher;
-}
-
-static inline void *crypto_ablkcipher_ctx(struct crypto_ablkcipher *tfm)
-{
- return crypto_tfm_ctx(&tfm->base);
-}
-
-static inline void *crypto_ablkcipher_ctx_aligned(struct crypto_ablkcipher *tfm)
-{
- return crypto_tfm_ctx_aligned(&tfm->base);
-}
-
-static inline struct crypto_blkcipher *crypto_spawn_blkcipher(
- struct crypto_spawn *spawn)
-{
- u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
- u32 mask = CRYPTO_ALG_TYPE_MASK;
-
- return __crypto_blkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
-}
-
-static inline void *crypto_blkcipher_ctx(struct crypto_blkcipher *tfm)
-{
- return crypto_tfm_ctx(&tfm->base);
-}
-
-static inline void *crypto_blkcipher_ctx_aligned(struct crypto_blkcipher *tfm)
-{
- return crypto_tfm_ctx_aligned(&tfm->base);
-}
-
-static inline struct crypto_cipher *crypto_spawn_cipher(
- struct crypto_spawn *spawn)
-{
- u32 type = CRYPTO_ALG_TYPE_CIPHER;
- u32 mask = CRYPTO_ALG_TYPE_MASK;
-
- return __crypto_cipher_cast(crypto_spawn_tfm(spawn, type, mask));
-}
-
-static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm)
-{
- return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
-}
-
-static inline void blkcipher_walk_init(struct blkcipher_walk *walk,
- struct scatterlist *dst,
- struct scatterlist *src,
- unsigned int nbytes)
-{
- walk->in.sg = src;
- walk->out.sg = dst;
- walk->total = nbytes;
-}
-
-static inline void ablkcipher_walk_init(struct ablkcipher_walk *walk,
- struct scatterlist *dst,
- struct scatterlist *src,
- unsigned int nbytes)
-{
- walk->in.sg = src;
- walk->out.sg = dst;
- walk->total = nbytes;
- INIT_LIST_HEAD(&walk->buffers);
-}
-
-static inline void ablkcipher_walk_complete(struct ablkcipher_walk *walk)
-{
- if (unlikely(!list_empty(&walk->buffers)))
- __ablkcipher_walk_complete(walk);
-}
-
static inline struct crypto_async_request *crypto_get_backlog(
struct crypto_queue *queue)
{
@@ -357,47 +196,29 @@
container_of(queue->backlog, struct crypto_async_request, list);
}
-static inline int ablkcipher_enqueue_request(struct crypto_queue *queue,
- struct ablkcipher_request *request)
+static inline u32 crypto_requires_off(struct crypto_attr_type *algt, u32 off)
{
- return crypto_enqueue_request(queue, &request->base);
-}
-
-static inline struct ablkcipher_request *ablkcipher_dequeue_request(
- struct crypto_queue *queue)
-{
- return ablkcipher_request_cast(crypto_dequeue_request(queue));
-}
-
-static inline void *ablkcipher_request_ctx(struct ablkcipher_request *req)
-{
- return req->__ctx;
-}
-
-static inline int ablkcipher_tfm_in_queue(struct crypto_queue *queue,
- struct crypto_ablkcipher *tfm)
-{
- return crypto_tfm_in_queue(queue, crypto_ablkcipher_tfm(tfm));
-}
-
-static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
- u32 type, u32 mask)
-{
- return crypto_attr_alg(tb[1], type, mask);
-}
-
-static inline int crypto_requires_off(u32 type, u32 mask, u32 off)
-{
- return (type ^ off) & mask & off;
+ return (algt->type ^ off) & algt->mask & off;
}
/*
- * Returns CRYPTO_ALG_ASYNC if type/mask requires the use of sync algorithms.
- * Otherwise returns zero.
+ * When an algorithm uses another algorithm (e.g., if it's an instance of a
+ * template), these are the flags that should always be set on the "outer"
+ * algorithm if any "inner" algorithm has them set.
*/
-static inline int crypto_requires_sync(u32 type, u32 mask)
+#define CRYPTO_ALG_INHERITED_FLAGS \
+ (CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK | \
+ CRYPTO_ALG_ALLOCATES_MEMORY)
+
+/*
+ * Given the type and mask that specify the flags restrictions on a template
+ * instance being created, return the mask that should be passed to
+ * crypto_grab_*() (along with type=0) to honor any request the user made to
+ * have any of the CRYPTO_ALG_INHERITED_FLAGS clear.
+ */
+static inline u32 crypto_algt_inherited_mask(struct crypto_attr_type *algt)
{
- return crypto_requires_off(type, mask, CRYPTO_ALG_ASYNC);
+ return crypto_requires_off(algt, CRYPTO_ALG_INHERITED_FLAGS);
}
noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
@@ -417,12 +238,14 @@
return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
}
-static inline void crypto_yield(u32 flags)
-{
-#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY)
- if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
- cond_resched();
-#endif
-}
+int crypto_register_notifier(struct notifier_block *nb);
+int crypto_unregister_notifier(struct notifier_block *nb);
+
+/* Crypto notification events. */
+enum {
+ CRYPTO_MSG_ALG_REQUEST,
+ CRYPTO_MSG_ALG_REGISTER,
+ CRYPTO_MSG_ALG_LOADED,
+};
#endif /* _CRYPTO_ALGAPI_H */
--
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