diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 10 | ||||
| -rw-r--r-- | crypto/Makefile | 2 | ||||
| -rw-r--r-- | crypto/acompress.c | 118 | ||||
| -rw-r--r-- | crypto/crypto_user.c | 19 |
4 files changed, 149 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index fd288053b1c5..9950c47c9d27 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -102,6 +102,15 @@ config CRYPTO_KPP select CRYPTO_ALGAPI select CRYPTO_KPP2 +config CRYPTO_ACOMP2 + tristate + select CRYPTO_ALGAPI2 + +config CRYPTO_ACOMP + tristate + select CRYPTO_ALGAPI + select CRYPTO_ACOMP2 + config CRYPTO_RSA tristate "RSA algorithm" select CRYPTO_AKCIPHER @@ -138,6 +147,7 @@ config CRYPTO_MANAGER2 select CRYPTO_BLKCIPHER2 select CRYPTO_AKCIPHER2 select CRYPTO_KPP2 + select CRYPTO_ACOMP2 config CRYPTO_USER tristate "Userspace cryptographic algorithm configuration" diff --git a/crypto/Makefile b/crypto/Makefile index 99cc64ac70ef..0933dc6bd24c 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -50,6 +50,8 @@ rsa_generic-y += rsa_helper.o rsa_generic-y += rsa-pkcs1pad.o obj-$(CONFIG_CRYPTO_RSA) += rsa_generic.o +obj-$(CONFIG_CRYPTO_ACOMP2) += acompress.o + cryptomgr-y := algboss.o testmgr.o obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o diff --git a/crypto/acompress.c b/crypto/acompress.c new file mode 100644 index 000000000000..4977279476d3 --- /dev/null +++ b/crypto/acompress.c @@ -0,0 +1,118 @@ +/* + * Asynchronous Compression operations + * + * Copyright (c) 2016, Intel Corporation + * Authors: Weigang Li <weigang.li@intel.com> + * Giovanni Cabiddu <giovanni.cabiddu@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 <net/netlink.h> +#include <crypto/internal/acompress.h> +#include "internal.h" + +#ifdef CONFIG_NET +static int crypto_acomp_report(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_acomp racomp; + + strncpy(racomp.type, "acomp", sizeof(racomp.type)); + + if (nla_put(skb, CRYPTOCFGA_REPORT_ACOMP, + sizeof(struct crypto_report_acomp), &racomp)) + goto nla_put_failure; + return 0; + +nla_put_failure: + return -EMSGSIZE; +} +#else +static int crypto_acomp_report(struct sk_buff *skb, struct crypto_alg *alg) +{ + return -ENOSYS; +} +#endif + +static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg) + __attribute__ ((unused)); + +static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg) +{ + seq_puts(m, "type : acomp\n"); +} + +static void crypto_acomp_exit_tfm(struct crypto_tfm *tfm) +{ + struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm); + struct acomp_alg *alg = crypto_acomp_alg(acomp); + + alg->exit(acomp); +} + +static int crypto_acomp_init_tfm(struct crypto_tfm *tfm) +{ + struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm); + struct acomp_alg *alg = crypto_acomp_alg(acomp); + + if (alg->exit) + acomp->base.exit = crypto_acomp_exit_tfm; + + if (alg->init) + return alg->init(acomp); + + return 0; +} + +static const struct crypto_type crypto_acomp_type = { + .extsize = crypto_alg_extsize, + .init_tfm = crypto_acomp_init_tfm, +#ifdef CONFIG_PROC_FS + .show = crypto_acomp_show, +#endif + .report = crypto_acomp_report, + .maskclear = ~CRYPTO_ALG_TYPE_MASK, + .maskset = CRYPTO_ALG_TYPE_MASK, + .type = CRYPTO_ALG_TYPE_ACOMPRESS, + .tfmsize = offsetof(struct crypto_acomp, base), +}; + +struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type, + u32 mask) +{ + return crypto_alloc_tfm(alg_name, &crypto_acomp_type, type, mask); +} +EXPORT_SYMBOL_GPL(crypto_alloc_acomp); + +int crypto_register_acomp(struct acomp_alg *alg) +{ + struct crypto_alg *base = &alg->base; + + base->cra_type = &crypto_acomp_type; + base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; + base->cra_flags |= CRYPTO_ALG_TYPE_ACOMPRESS; + + return crypto_register_alg(base); +} +EXPORT_SYMBOL_GPL(crypto_register_acomp); + +int crypto_unregister_acomp(struct acomp_alg *alg) +{ + return crypto_unregister_alg(&alg->base); +} +EXPORT_SYMBOL_GPL(crypto_unregister_acomp); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Asynchronous compression type"); diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index 1c5705481c69..a90404a0c5ff 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -112,6 +112,21 @@ nla_put_failure: return -EMSGSIZE; } +static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_acomp racomp; + + strncpy(racomp.type, "acomp", sizeof(racomp.type)); + + if (nla_put(skb, CRYPTOCFGA_REPORT_ACOMP, + sizeof(struct crypto_report_acomp), &racomp)) + goto nla_put_failure; + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg) { struct crypto_report_akcipher rakcipher; @@ -186,7 +201,11 @@ static int crypto_report_one(struct crypto_alg *alg, goto nla_put_failure; break; + case CRYPTO_ALG_TYPE_ACOMPRESS: + if (crypto_report_acomp(skb, alg)) + goto nla_put_failure; + break; case CRYPTO_ALG_TYPE_AKCIPHER: if (crypto_report_akcipher(skb, alg)) goto nla_put_failure; |