mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 03:33:59 +08:00
d8c34b949d
Continuing from this commit: 52f5684c8e
("kernel: use macros from compiler.h instead of __attribute__((...))")
I submitted 4 total patches. They are part of task I've taken up to
increase compiler portability in the kernel. I've cleaned up the
subsystems under /kernel /mm /block and /security, this patch targets
/crypto.
There is <linux/compiler.h> which provides macros for various gcc specific
constructs. Eg: __weak for __attribute__((weak)). I've cleaned all
instances of gcc specific attributes with the right macros for the crypto
subsystem.
I had to make one additional change into compiler-gcc.h for the case when
one wants to use this: __attribute__((aligned) and not specify an alignment
factor. From the gcc docs, this will result in the largest alignment for
that data type on the target machine so I've named the macro
__aligned_largest. Please advise if another name is more appropriate.
Signed-off-by: Gideon Israel Dsouza <gidisrael@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/*
|
|
* Key-agreement Protocol Primitives (KPP)
|
|
*
|
|
* Copyright (c) 2016, Intel Corporation
|
|
* Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
|
|
*
|
|
* 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 <linux/errno.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <linux/crypto.h>
|
|
#include <crypto/algapi.h>
|
|
#include <linux/cryptouser.h>
|
|
#include <linux/compiler.h>
|
|
#include <net/netlink.h>
|
|
#include <crypto/kpp.h>
|
|
#include <crypto/internal/kpp.h>
|
|
#include "internal.h"
|
|
|
|
#ifdef CONFIG_NET
|
|
static int crypto_kpp_report(struct sk_buff *skb, struct crypto_alg *alg)
|
|
{
|
|
struct crypto_report_kpp rkpp;
|
|
|
|
strncpy(rkpp.type, "kpp", sizeof(rkpp.type));
|
|
|
|
if (nla_put(skb, CRYPTOCFGA_REPORT_KPP,
|
|
sizeof(struct crypto_report_kpp), &rkpp))
|
|
goto nla_put_failure;
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
return -EMSGSIZE;
|
|
}
|
|
#else
|
|
static int crypto_kpp_report(struct sk_buff *skb, struct crypto_alg *alg)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
static void crypto_kpp_show(struct seq_file *m, struct crypto_alg *alg)
|
|
__maybe_unused;
|
|
|
|
static void crypto_kpp_show(struct seq_file *m, struct crypto_alg *alg)
|
|
{
|
|
seq_puts(m, "type : kpp\n");
|
|
}
|
|
|
|
static void crypto_kpp_exit_tfm(struct crypto_tfm *tfm)
|
|
{
|
|
struct crypto_kpp *kpp = __crypto_kpp_tfm(tfm);
|
|
struct kpp_alg *alg = crypto_kpp_alg(kpp);
|
|
|
|
alg->exit(kpp);
|
|
}
|
|
|
|
static int crypto_kpp_init_tfm(struct crypto_tfm *tfm)
|
|
{
|
|
struct crypto_kpp *kpp = __crypto_kpp_tfm(tfm);
|
|
struct kpp_alg *alg = crypto_kpp_alg(kpp);
|
|
|
|
if (alg->exit)
|
|
kpp->base.exit = crypto_kpp_exit_tfm;
|
|
|
|
if (alg->init)
|
|
return alg->init(kpp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct crypto_type crypto_kpp_type = {
|
|
.extsize = crypto_alg_extsize,
|
|
.init_tfm = crypto_kpp_init_tfm,
|
|
#ifdef CONFIG_PROC_FS
|
|
.show = crypto_kpp_show,
|
|
#endif
|
|
.report = crypto_kpp_report,
|
|
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
|
|
.maskset = CRYPTO_ALG_TYPE_MASK,
|
|
.type = CRYPTO_ALG_TYPE_KPP,
|
|
.tfmsize = offsetof(struct crypto_kpp, base),
|
|
};
|
|
|
|
struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask)
|
|
{
|
|
return crypto_alloc_tfm(alg_name, &crypto_kpp_type, type, mask);
|
|
}
|
|
EXPORT_SYMBOL_GPL(crypto_alloc_kpp);
|
|
|
|
static void kpp_prepare_alg(struct kpp_alg *alg)
|
|
{
|
|
struct crypto_alg *base = &alg->base;
|
|
|
|
base->cra_type = &crypto_kpp_type;
|
|
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
|
|
base->cra_flags |= CRYPTO_ALG_TYPE_KPP;
|
|
}
|
|
|
|
int crypto_register_kpp(struct kpp_alg *alg)
|
|
{
|
|
struct crypto_alg *base = &alg->base;
|
|
|
|
kpp_prepare_alg(alg);
|
|
return crypto_register_alg(base);
|
|
}
|
|
EXPORT_SYMBOL_GPL(crypto_register_kpp);
|
|
|
|
void crypto_unregister_kpp(struct kpp_alg *alg)
|
|
{
|
|
crypto_unregister_alg(&alg->base);
|
|
}
|
|
EXPORT_SYMBOL_GPL(crypto_unregister_kpp);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Key-agreement Protocol Primitives");
|