diff options
author | Dominik Sliwa <dominik.sliwa@toradex.com> | 2017-12-22 12:07:34 +0000 |
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committer | Dominik Sliwa <dominik.sliwa@toradex.com> | 2017-12-22 16:46:44 +0100 |
commit | 198e79f0e8f0b24c1e36ab6032d348f40de20262 (patch) | |
tree | d8dd6411978560fd0b6832761b085ac431253389 /compat/crypto-kpp.c | |
parent | c8beff5117bd4614be26bf28e97b885e8af42a67 (diff) |
backports: bluetooth: Support 4.9 kernelsColibri-iMX7_LXDE-Image_2.8b3.111-20180627Colibri-iMX7_LXDE-Image_2.8b2.97-20180331Colibri-iMX7_LXDE-Image_2.8b1.64-20171229Colibri-iMX6_LXDE-Image_2.8b3.111-20180627Colibri-iMX6_LXDE-Image_2.8b2.97-20180331Colibri-iMX6_LXDE-Image_2.8b1.64-20171229Colibri-iMX6ULL_LXDE-Image_2.8b3.111-20180627Colibri-iMX6ULL_LXDE-Image_2.8b2.97-20180331Colibri-iMX6ULL_LXDE-Image_2.8b1.64-20171229Colibri-VF_LXDE-Image_2.8b3.111-20180626Colibri-VF_LXDE-Image_2.8b2.97-20180331Colibri-VF_LXDE-Image_2.8b1.64-20171229Colibri-T30_LXDE-Image_2.8b3.111-20180627Colibri-T30_LXDE-Image_2.8b2.97-20180331Colibri-T30_LXDE-Image_2.8b1.64-20171229Colibri-T20_LXDE-Image_2.8b3.111-20180626Colibri-T20_LXDE-Image_2.8b2.97-20180331Colibri-T20_LXDE-Image_2.8b1.64-20171229Apalis-iMX6_LXDE-Image_2.8b3.111-20180626Apalis-iMX6_LXDE-Image_2.8b2.97-20180331Apalis-iMX6_LXDE-Image_2.8b1.64-20171229Apalis-TK1_LXDE-Image_2.8b3.111-20180626Apalis-TK1_LXDE-Image_2.8b2.97-20180331Apalis-TK1_LXDE-Image_2.8b1.64-20171229Apalis-TK1-Mainline_LXDE-Image_2.8b3.111-20180627Apalis-TK1-Mainline_LXDE-Image_2.8b2.97-20180331Apalis-TK1-Mainline_LXDE-Image_2.8b1.64-20171229Apalis-T30_LXDE-Image_2.8b3.111-20180626Apalis-T30_LXDE-Image_2.8b2.97-20180331Apalis-T30_LXDE-Image_2.8b1.64-20171229toradex-4.14
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'compat/crypto-kpp.c')
-rw-r--r-- | compat/crypto-kpp.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/compat/crypto-kpp.c b/compat/crypto-kpp.c new file mode 100644 index 0000000..ae11fa8 --- /dev/null +++ b/compat/crypto-kpp.c @@ -0,0 +1,128 @@ +/* + * 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/backport-kpp.h> +#include <crypto/internal/backport-kpp.h> + +extern unsigned int crypto_alg_extsize(struct crypto_alg *alg); +void *crypto_alloc_tfm(const char *alg_name, + const struct crypto_type *frontend, u32 type, u32 mask); + +#define CRYPTOCFGA_REPORT_KPP __CRYPTOCFGA_MAX +#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"); |