diff options
33 files changed, 273 insertions, 207 deletions
diff --git a/Documentation/crypto/api-skcipher.rst b/Documentation/crypto/api-skcipher.rst index 1aaf8985894b..04d6cc5357c8 100644 --- a/Documentation/crypto/api-skcipher.rst +++ b/Documentation/crypto/api-skcipher.rst @@ -28,8 +28,8 @@ Symmetric Key Cipher Request Handle Single Block Cipher API ----------------------- -.. kernel-doc:: include/linux/crypto.h +.. kernel-doc:: include/crypto/internal/cipher.h :doc: Single Block Cipher API -.. kernel-doc:: include/linux/crypto.h +.. kernel-doc:: include/crypto/internal/cipher.h :functions: crypto_alloc_cipher crypto_free_cipher crypto_has_cipher crypto_cipher_blocksize crypto_cipher_setkey crypto_cipher_encrypt_one crypto_cipher_decrypt_one diff --git a/arch/arm/crypto/aes-neonbs-glue.c b/arch/arm/crypto/aes-neonbs-glue.c index f70af1d0514b..5c6cd3c63cbc 100644 --- a/arch/arm/crypto/aes-neonbs-glue.c +++ b/arch/arm/crypto/aes-neonbs-glue.c @@ -9,6 +9,7 @@ #include <asm/simd.h> #include <crypto/aes.h> #include <crypto/ctr.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/simd.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> @@ -23,6 +24,8 @@ MODULE_ALIAS_CRYPTO("cbc(aes)-all"); MODULE_ALIAS_CRYPTO("ctr(aes)"); MODULE_ALIAS_CRYPTO("xts(aes)"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); + asmlinkage void aesbs_convert_key(u8 out[], u32 const rk[], int rounds); asmlinkage void aesbs_ecb_encrypt(u8 out[], u8 const in[], u8 const rk[], diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 73044634d342..54c7536f2482 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -21,6 +21,7 @@ #include <crypto/algapi.h> #include <crypto/ghash.h> #include <crypto/internal/aead.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> #include <linux/err.h> @@ -1055,3 +1056,4 @@ MODULE_ALIAS_CRYPTO("aes-all"); MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/adiantum.c b/crypto/adiantum.c index ce4d5725342c..84450130cb6b 100644 --- a/crypto/adiantum.c +++ b/crypto/adiantum.c @@ -32,6 +32,7 @@ #include <crypto/b128ops.h> #include <crypto/chacha.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/hash.h> #include <crypto/internal/poly1305.h> #include <crypto/internal/skcipher.h> @@ -616,3 +617,4 @@ MODULE_DESCRIPTION("Adiantum length-preserving encryption mode"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>"); MODULE_ALIAS_CRYPTO("adiantum"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c index c475c1129ff2..3f512efaba3a 100644 --- a/crypto/ansi_cprng.c +++ b/crypto/ansi_cprng.c @@ -7,6 +7,7 @@ * (C) Neil Horman <nhorman@tuxdriver.com> */ +#include <crypto/internal/cipher.h> #include <crypto/internal/rng.h> #include <linux/err.h> #include <linux/init.h> @@ -470,3 +471,4 @@ subsys_initcall(prng_mod_init); module_exit(prng_mod_fini); MODULE_ALIAS_CRYPTO("stdrng"); MODULE_ALIAS_CRYPTO("ansi_cprng"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/cbc.c b/crypto/cbc.c index 0d9509dff891..6c03e96b945f 100644 --- a/crypto/cbc.c +++ b/crypto/cbc.c @@ -6,6 +6,7 @@ */ #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/err.h> #include <linux/init.h> diff --git a/crypto/ccm.c b/crypto/ccm.c index 494d70901186..6b815ece51c6 100644 --- a/crypto/ccm.c +++ b/crypto/ccm.c @@ -6,6 +6,7 @@ */ #include <crypto/internal/aead.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/hash.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> @@ -954,3 +955,4 @@ MODULE_ALIAS_CRYPTO("ccm_base"); MODULE_ALIAS_CRYPTO("rfc4309"); MODULE_ALIAS_CRYPTO("ccm"); MODULE_ALIAS_CRYPTO("cbcmac"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/cfb.c b/crypto/cfb.c index 4e5219bbcd19..0d664dfb47bc 100644 --- a/crypto/cfb.c +++ b/crypto/cfb.c @@ -20,6 +20,7 @@ */ #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/err.h> #include <linux/init.h> @@ -250,3 +251,4 @@ module_exit(crypto_cfb_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("CFB block cipher mode of operation"); MODULE_ALIAS_CRYPTO("cfb"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/cipher.c b/crypto/cipher.c index fd78150deb1c..b47141ed4a9f 100644 --- a/crypto/cipher.c +++ b/crypto/cipher.c @@ -9,6 +9,7 @@ */ #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <linux/kernel.h> #include <linux/crypto.h> #include <linux/errno.h> @@ -53,7 +54,7 @@ int crypto_cipher_setkey(struct crypto_cipher *tfm, return cia->cia_setkey(crypto_cipher_tfm(tfm), key, keylen); } -EXPORT_SYMBOL_GPL(crypto_cipher_setkey); +EXPORT_SYMBOL_NS_GPL(crypto_cipher_setkey, CRYPTO_INTERNAL); static inline void cipher_crypt_one(struct crypto_cipher *tfm, u8 *dst, const u8 *src, bool enc) @@ -81,11 +82,11 @@ void crypto_cipher_encrypt_one(struct crypto_cipher *tfm, { cipher_crypt_one(tfm, dst, src, true); } -EXPORT_SYMBOL_GPL(crypto_cipher_encrypt_one); +EXPORT_SYMBOL_NS_GPL(crypto_cipher_encrypt_one, CRYPTO_INTERNAL); void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, u8 *dst, const u8 *src) { cipher_crypt_one(tfm, dst, src, false); } -EXPORT_SYMBOL_GPL(crypto_cipher_decrypt_one); +EXPORT_SYMBOL_NS_GPL(crypto_cipher_decrypt_one, CRYPTO_INTERNAL); diff --git a/crypto/cmac.c b/crypto/cmac.c index df36be1efb81..f4a5d3bfb376 100644 --- a/crypto/cmac.c +++ b/crypto/cmac.c @@ -11,6 +11,7 @@ * Author: Kazunori Miyazawa <miyazawa@linux-ipv6.org> */ +#include <crypto/internal/cipher.h> #include <crypto/internal/hash.h> #include <linux/err.h> #include <linux/kernel.h> @@ -313,3 +314,4 @@ module_exit(crypto_cmac_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("CMAC keyed hash algorithm"); MODULE_ALIAS_CRYPTO("cmac"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/ctr.c b/crypto/ctr.c index c39fcffba27f..23c698b22013 100644 --- a/crypto/ctr.c +++ b/crypto/ctr.c @@ -7,6 +7,7 @@ #include <crypto/algapi.h> #include <crypto/ctr.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/err.h> #include <linux/init.h> @@ -358,3 +359,4 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("CTR block cipher mode of operation"); MODULE_ALIAS_CRYPTO("rfc3686"); MODULE_ALIAS_CRYPTO("ctr"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/drbg.c b/crypto/drbg.c index 3132967a1749..1b4587e0ddad 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -98,6 +98,7 @@ */ #include <crypto/drbg.h> +#include <crypto/internal/cipher.h> #include <linux/kernel.h> /*************************************************************** @@ -2161,3 +2162,4 @@ MODULE_DESCRIPTION("NIST SP800-90A Deterministic Random Bit Generator (DRBG) " CRYPTO_DRBG_HMAC_STRING CRYPTO_DRBG_CTR_STRING); MODULE_ALIAS_CRYPTO("stdrng"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/ecb.c b/crypto/ecb.c index 69a687cbdf21..71fbb0543d64 100644 --- a/crypto/ecb.c +++ b/crypto/ecb.c @@ -6,6 +6,7 @@ */ #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/err.h> #include <linux/init.h> diff --git a/crypto/essiv.c b/crypto/essiv.c index d012be23d496..8bcc5bdcb2a9 100644 --- a/crypto/essiv.c +++ b/crypto/essiv.c @@ -30,6 +30,7 @@ #include <crypto/authenc.h> #include <crypto/internal/aead.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/hash.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> @@ -643,3 +644,4 @@ module_exit(essiv_module_exit); MODULE_DESCRIPTION("ESSIV skcipher/aead wrapper for block encryption"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS_CRYPTO("essiv"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/keywrap.c b/crypto/keywrap.c index 0355cce21b1e..3517773bc7f7 100644 --- a/crypto/keywrap.c +++ b/crypto/keywrap.c @@ -85,6 +85,7 @@ #include <linux/crypto.h> #include <linux/scatterlist.h> #include <crypto/scatterwalk.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> struct crypto_kw_block { @@ -316,3 +317,4 @@ MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Stephan Mueller <smueller@chronox.de>"); MODULE_DESCRIPTION("Key Wrapping (RFC3394 / NIST SP800-38F)"); MODULE_ALIAS_CRYPTO("kw"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/ofb.c b/crypto/ofb.c index 2ec68e3f2c55..b630fdecceee 100644 --- a/crypto/ofb.c +++ b/crypto/ofb.c @@ -8,6 +8,7 @@ */ #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/err.h> #include <linux/init.h> @@ -102,3 +103,4 @@ module_exit(crypto_ofb_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("OFB block cipher mode of operation"); MODULE_ALIAS_CRYPTO("ofb"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/pcbc.c b/crypto/pcbc.c index ae921fb74dc9..7030f59e46b6 100644 --- a/crypto/pcbc.c +++ b/crypto/pcbc.c @@ -10,6 +10,7 @@ */ #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/err.h> #include <linux/init.h> @@ -191,3 +192,4 @@ module_exit(crypto_pcbc_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("PCBC block cipher mode of operation"); MODULE_ALIAS_CRYPTO("pcbc"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/skcipher.c b/crypto/skcipher.c index b4dae640de9f..ff16d05644c7 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -10,6 +10,7 @@ */ #include <crypto/internal/aead.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> #include <linux/bug.h> @@ -986,3 +987,4 @@ EXPORT_SYMBOL_GPL(skcipher_alloc_instance_simple); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Symmetric key cipher type"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 321e38eef51b..a896d77e9611 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -33,10 +33,13 @@ #include <crypto/akcipher.h> #include <crypto/kpp.h> #include <crypto/acompress.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/simd.h> #include "internal.h" +MODULE_IMPORT_NS(CRYPTO_INTERNAL); + static bool notests; module_param(notests, bool, 0644); MODULE_PARM_DESC(notests, "disable crypto self-tests"); diff --git a/crypto/vmac.c b/crypto/vmac.c index 9b565d1040d6..4633b2dda1e0 100644 --- a/crypto/vmac.c +++ b/crypto/vmac.c @@ -36,6 +36,7 @@ #include <linux/scatterlist.h> #include <asm/byteorder.h> #include <crypto/scatterwalk.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/hash.h> /* @@ -693,3 +694,4 @@ module_exit(vmac_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("VMAC hash algorithm"); MODULE_ALIAS_CRYPTO("vmac64"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/xcbc.c b/crypto/xcbc.c index af3b7eb5d7c7..6074c5c1da49 100644 --- a/crypto/xcbc.c +++ b/crypto/xcbc.c @@ -6,6 +6,7 @@ * Kazunori Miyazawa <miyazawa@linux-ipv6.org> */ +#include <crypto/internal/cipher.h> #include <crypto/internal/hash.h> #include <linux/err.h> #include <linux/kernel.h> @@ -272,3 +273,4 @@ module_exit(crypto_xcbc_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("XCBC keyed hash algorithm"); MODULE_ALIAS_CRYPTO("xcbc"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/crypto/xts.c b/crypto/xts.c index ad45b009774b..6c12f30dbdd6 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -7,6 +7,7 @@ * Based on ecb.c * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> */ +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> #include <linux/err.h> @@ -464,3 +465,4 @@ module_exit(xts_module_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("XTS block cipher mode"); MODULE_ALIAS_CRYPTO("xts"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c index f4f18bfc2247..4ee010f39912 100644 --- a/drivers/crypto/geode-aes.c +++ b/drivers/crypto/geode-aes.c @@ -10,6 +10,7 @@ #include <linux/spinlock.h> #include <crypto/algapi.h> #include <crypto/aes.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <linux/io.h> @@ -434,3 +435,4 @@ module_pci_driver(geode_aes_driver); MODULE_AUTHOR("Advanced Micro Devices, Inc."); MODULE_DESCRIPTION("Geode LX Hardware AES driver"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 2e1562108a85..30aedfcfee7c 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -1999,3 +1999,4 @@ MODULE_AUTHOR("Ofer Heifetz <oferh@marvell.com>"); MODULE_AUTHOR("Igal Liberman <igall@marvell.com>"); MODULE_DESCRIPTION("Support for SafeXcel cryptographic engines: EIP97 & EIP197"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c index 50fb6d90a2e0..bc60b5802256 100644 --- a/drivers/crypto/inside-secure/safexcel_hash.c +++ b/drivers/crypto/inside-secure/safexcel_hash.c @@ -13,6 +13,7 @@ #include <crypto/sha3.h> #include <crypto/skcipher.h> #include <crypto/sm3.h> +#include <crypto/internal/cipher.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/dmapool.h> diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c index eb9b3be9d8eb..96b437bfe3de 100644 --- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c +++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c @@ -464,3 +464,4 @@ MODULE_AUTHOR("Intel"); MODULE_DESCRIPTION("Intel(R) QuickAssist Technology"); MODULE_ALIAS_CRYPTO("intel_qat"); MODULE_VERSION(ADF_DRV_VERSION); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index 31c7a206a629..ff78c73c47e3 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -4,6 +4,7 @@ #include <linux/slab.h> #include <linux/crypto.h> #include <crypto/internal/aead.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/skcipher.h> #include <crypto/aes.h> #include <crypto/sha1.h> diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c index 2bc5d4e1adf4..d05c02baebcf 100644 --- a/drivers/crypto/vmx/aes.c +++ b/drivers/crypto/vmx/aes.c @@ -14,6 +14,7 @@ #include <asm/simd.h> #include <asm/switch_to.h> #include <crypto/aes.h> +#include <crypto/internal/cipher.h> #include <crypto/internal/simd.h> #include "aesp8-ppc.h" diff --git a/drivers/crypto/vmx/vmx.c b/drivers/crypto/vmx/vmx.c index 3e0335fb406c..87a194455d6a 100644 --- a/drivers/crypto/vmx/vmx.c +++ b/drivers/crypto/vmx/vmx.c @@ -78,3 +78,4 @@ MODULE_DESCRIPTION("IBM VMX cryptographic acceleration instructions " "support on Power 8"); MODULE_LICENSE("GPL"); MODULE_VERSION("1.0.0"); +MODULE_IMPORT_NS(CRYPTO_INTERNAL); diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 18dd7a4aaf7d..86f0748009af 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -189,45 +189,6 @@ static inline void *crypto_instance_ctx(struct crypto_instance *inst) return inst->__ctx; } -struct crypto_cipher_spawn { - struct crypto_spawn base; -}; - -static inline int crypto_grab_cipher(struct crypto_cipher_spawn *spawn, - struct crypto_instance *inst, - const char *name, u32 type, u32 mask) -{ - type &= ~CRYPTO_ALG_TYPE_MASK; - type |= CRYPTO_ALG_TYPE_CIPHER; - mask |= CRYPTO_ALG_TYPE_MASK; - return crypto_grab_spawn(&spawn->base, inst, name, type, mask); -} - -static inline void crypto_drop_cipher(struct crypto_cipher_spawn *spawn) -{ - crypto_drop_spawn(&spawn->base); -} - -static inline struct crypto_alg *crypto_spawn_cipher_alg( - struct crypto_cipher_spawn *spawn) -{ - return spawn->base.alg; -} - -static inline struct crypto_cipher *crypto_spawn_cipher( - struct crypto_cipher_spawn *spawn) -{ - u32 type = CRYPTO_ALG_TYPE_CIPHER; - u32 mask = CRYPTO_ALG_TYPE_MASK; - - return __crypto_cipher_cast(crypto_spawn_tfm(&spawn->base, 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 struct crypto_async_request *crypto_get_backlog( struct crypto_queue *queue) { diff --git a/include/crypto/internal/cipher.h b/include/crypto/internal/cipher.h new file mode 100644 index 000000000000..a9174ba90250 --- /dev/null +++ b/include/crypto/internal/cipher.h @@ -0,0 +1,218 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> + * Copyright (c) 2002 David S. Miller (davem@redhat.com) + * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> + * + * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no> + * and Nettle, by Niels Möller. + */ + +#ifndef _CRYPTO_INTERNAL_CIPHER_H +#define _CRYPTO_INTERNAL_CIPHER_H + +#include <crypto/algapi.h> + +struct crypto_cipher { + struct crypto_tfm base; +}; + +/** + * DOC: Single Block Cipher API + * + * The single block cipher API is used with the ciphers of type + * CRYPTO_ALG_TYPE_CIPHER (listed as type "cipher" in /proc/crypto). + * + * Using the single block cipher API calls, operations with the basic cipher + * primitive can be implemented. These cipher primitives exclude any block + * chaining operations including IV handling. + * + * The purpose of this single block cipher API is to support the implementation + * of templates or other concepts that only need to perform the cipher operation + * on one block at a time. Templates invoke the underlying cipher primitive + * block-wise and process either the input or the output data of these cipher + * operations. + */ + +static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm) +{ + return (struct crypto_cipher *)tfm; +} + +/** + * crypto_alloc_cipher() - allocate single block cipher handle + * @alg_name: is the cra_name / name or cra_driver_name / driver name of the + * single block cipher + * @type: specifies the type of the cipher + * @mask: specifies the mask for the cipher + * + * Allocate a cipher handle for a single block cipher. The returned struct + * crypto_cipher is the cipher handle that is required for any subsequent API + * invocation for that single block cipher. + * + * Return: allocated cipher handle in case of success; IS_ERR() is true in case + * of an error, PTR_ERR() returns the error code. + */ +static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name, + u32 type, u32 mask) +{ + type &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_CIPHER; + mask |= CRYPTO_ALG_TYPE_MASK; + + return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask)); +} + +static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm) +{ + return &tfm->base; +} + +/** + * crypto_free_cipher() - zeroize and free the single block cipher handle + * @tfm: cipher handle to be freed + */ +static inline void crypto_free_cipher(struct crypto_cipher *tfm) +{ + crypto_free_tfm(crypto_cipher_tfm(tfm)); +} + +/** + * crypto_has_cipher() - Search for the availability of a single block cipher + * @alg_name: is the cra_name / name or cra_driver_name / driver name of the + * single block cipher + * @type: specifies the type of the cipher + * @mask: specifies the mask for the cipher + * + * Return: true when the single block cipher is known to the kernel crypto API; + * false otherwise + */ +static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask) +{ + type &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_CIPHER; + mask |= CRYPTO_ALG_TYPE_MASK; + + return crypto_has_alg(alg_name, type, mask); +} + +/** + * crypto_cipher_blocksize() - obtain block size for cipher + * @tfm: cipher handle + * + * The block size for the single block cipher referenced with the cipher handle + * tfm is returned. The caller may use that information to allocate appropriate + * memory for the data returned by the encryption or decryption operation + * + * Return: block size of cipher + */ +static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm) +{ + return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm)); +} + +static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm) +{ + return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm)); +} + +static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm) +{ + return crypto_tfm_get_flags(crypto_cipher_tfm(tfm)); +} + +static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm, + u32 flags) +{ + crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags); +} + +static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm, + u32 flags) +{ + crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags); +} + +/** + * crypto_cipher_setkey() - set key for cipher + * @tfm: cipher handle + * @key: buffer holding the key + * @keylen: length of the key in bytes + * + * The caller provided key is set for the single block cipher referenced by the + * cipher handle. + * + * Note, the key length determines the cipher type. Many block ciphers implement + * different cipher modes depending on the key size, such as AES-128 vs AES-192 + * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128 + * is performed. + * + * Return: 0 if the setting of the key was successful; < 0 if an error occurred + */ +int crypto_cipher_setkey(struct crypto_cipher *tfm, + const u8 *key, unsigned int keylen); + +/** + * crypto_cipher_encrypt_one() - encrypt one block of plaintext + * @tfm: cipher handle + * @dst: points to the buffer that will be filled with the ciphertext + * @src: buffer holding the plaintext to be encrypted + * + * Invoke the encryption operation of one block. The caller must ensure that + * the plaintext and ciphertext buffers are at least one block in size. + */ +void crypto_cipher_encrypt_one(struct crypto_cipher *tfm, + u8 *dst, const u8 *src); + +/** + * crypto_cipher_decrypt_one() - decrypt one block of ciphertext + * @tfm: cipher handle + * @dst: points to the buffer that will be filled with the plaintext + * @src: buffer holding the ciphertext to be decrypted + * + * Invoke the decryption operation of one block. The caller must ensure that + * the plaintext and ciphertext buffers are at least one block in size. + */ +void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, + u8 *dst, const u8 *src); + +struct crypto_cipher_spawn { + struct crypto_spawn base; +}; + +static inline int crypto_grab_cipher(struct crypto_cipher_spawn *spawn, + struct crypto_instance *inst, + const char *name, u32 type, u32 mask) +{ + type &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_CIPHER; + mask |= CRYPTO_ALG_TYPE_MASK; + return crypto_grab_spawn(&spawn->base, inst, name, type, mask); +} + +static inline void crypto_drop_cipher(struct crypto_cipher_spawn *spawn) +{ + crypto_drop_spawn(&spawn->base); +} + +static inline struct crypto_alg *crypto_spawn_cipher_alg( + struct crypto_cipher_spawn *spawn) +{ + return spawn->base.alg; +} + +static inline struct crypto_cipher *crypto_spawn_cipher( + struct crypto_cipher_spawn *spawn) +{ + u32 type = CRYPTO_ALG_TYPE_CIPHER; + u32 mask = CRYPTO_ALG_TYPE_MASK; + + return __crypto_cipher_cast(crypto_spawn_tfm(&spawn->base, type, mask)); +} + +static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm) +{ + return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher; +} + +#endif diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h index 10226c12c5df..9dd6c0c17eb8 100644 --- a/include/crypto/internal/skcipher.h +++ b/include/crypto/internal/skcipher.h @@ -9,6 +9,7 @@ #define _CRYPTO_INTERNAL_SKCIPHER_H #include <crypto/algapi.h> +#include <crypto/internal/cipher.h> #include <crypto/skcipher.h> #include <linux/list.h> #include <linux/types.h> diff --git a/include/linux/crypto.h b/include/linux/crypto.h index ef90e07c9635..9b55cd6b1f1b 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -636,10 +636,6 @@ struct crypto_tfm { void *__crt_ctx[] CRYPTO_MINALIGN_ATTR; }; -struct crypto_cipher { - struct crypto_tfm base; -}; - struct crypto_comp { struct crypto_tfm base; }; @@ -743,165 +739,6 @@ static inline unsigned int crypto_tfm_ctx_alignment(void) return __alignof__(tfm->__crt_ctx); } -/** - * DOC: Single Block Cipher API - * - * The single block cipher API is used with the ciphers of type - * CRYPTO_ALG_TYPE_CIPHER (listed as type "cipher" in /proc/crypto). - * - * Using the single block cipher API calls, operations with the basic cipher - * primitive can be implemented. These cipher primitives exclude any block - * chaining operations including IV handling. - * - * The purpose of this single block cipher API is to support the implementation - * of templates or other concepts that only need to perform the cipher operation - * on one block at a time. Templates invoke the underlying cipher primitive - * block-wise and process either the input or the output data of these cipher - * operations. - */ - -static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm) -{ - return (struct crypto_cipher *)tfm; -} - -/** - * crypto_alloc_cipher() - allocate single block cipher handle - * @alg_name: is the cra_name / name or cra_driver_name / driver name of the - * single block cipher - * @type: specifies the type of the cipher - * @mask: specifies the mask for the cipher - * - * Allocate a cipher handle for a single block cipher. The returned struct - * crypto_cipher is the cipher handle that is required for any subsequent API - * invocation for that single block cipher. - * - * Return: allocated cipher handle in case of success; IS_ERR() is true in case - * of an error, PTR_ERR() returns the error code. - */ -static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name, - u32 type, u32 mask) -{ - type &= ~CRYPTO_ALG_TYPE_MASK; - type |= CRYPTO_ALG_TYPE_CIPHER; - mask |= CRYPTO_ALG_TYPE_MASK; - - return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask)); -} - -static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm) -{ - return &tfm->base; -} - -/** - * crypto_free_cipher() - zeroize and free the single block cipher handle - * @tfm: cipher handle to be freed - */ -static inline void crypto_free_cipher(struct crypto_cipher *tfm) -{ - crypto_free_tfm(crypto_cipher_tfm(tfm)); -} - -/** - * crypto_has_cipher() - Search for the availability of a single block cipher - * @alg_name: is the cra_name / name or cra_driver_name / driver name of the - * single block cipher - * @type: specifies the type of the cipher - * @mask: specifies the mask for the cipher - * - * Return: true when the single block cipher is known to the kernel crypto API; - * false otherwise - */ -static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask) -{ - type &= ~CRYPTO_ALG_TYPE_MASK; - type |= CRYPTO_ALG_TYPE_CIPHER; - mask |= CRYPTO_ALG_TYPE_MASK; - - return crypto_has_alg(alg_name, type, mask); -} - -/** - * crypto_cipher_blocksize() - obtain block size for cipher - * @tfm: cipher handle - * - * The block size for the single block cipher referenced with the cipher handle - * tfm is returned. The caller may use that information to allocate appropriate - * memory for the data returned by the encryption or decryption operation - * - * Return: block size of cipher - */ -static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm) -{ - return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm)); -} - -static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm) -{ - return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm)); -} - -static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm) -{ - return crypto_tfm_get_flags(crypto_cipher_tfm(tfm)); -} - -static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm, - u32 flags) -{ - crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags); -} - -static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm, - u32 flags) -{ - crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags); -} - -/** - * crypto_cipher_setkey() - set key for cipher - * @tfm: cipher handle - * @key: buffer holding the key - * @keylen: length of the key in bytes - * - * The caller provided key is set for the single block cipher referenced by the - * cipher handle. - * - * Note, the key length determines the cipher type. Many block ciphers implement - * different cipher modes depending on the key size, such as AES-128 vs AES-192 - * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128 - * is performed. - * - * Return: 0 if the setting of the key was successful; < 0 if an error occurred - */ -int crypto_cipher_setkey(struct crypto_cipher *tfm, - const u8 *key, unsigned int keylen); - -/** - * crypto_cipher_encrypt_one() - encrypt one block of plaintext - * @tfm: cipher handle - * @dst: points to the buffer that will be filled with the ciphertext - * @src: buffer holding the plaintext to be encrypted - * - * Invoke the encryption operation of one block. The caller must ensure that - * the plaintext and ciphertext buffers are at least one block in size. - */ -void crypto_cipher_encrypt_one(struct crypto_cipher *tfm, - u8 *dst, const u8 *src); - -/** - * crypto_cipher_decrypt_one() - decrypt one block of ciphertext - * @tfm: cipher handle - * @dst: points to the buffer that will be filled with the plaintext - * @src: buffer holding the ciphertext to be decrypted - * - * Invoke the decryption operation of one block. The caller must ensure that - * the plaintext and ciphertext buffers are at least one block in size. - */ -void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, - u8 *dst, const u8 *src); - static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm) { return (struct crypto_comp *)tfm; |