From: Dmitry Kasatkin Date: Mon, 6 May 2013 12:58:15 +0000 (+0300) Subject: keys: change asymmetric keys to use common hash definitions X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3fe78ca2fb1d61ea598e63fcbf38aec76b36b3a8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git keys: change asymmetric keys to use common hash definitions This patch makes use of the newly defined common hash algorithm info, replacing, for example, PKEY_HASH with HASH_ALGO. Changelog: - Lindent fixes - Mimi CC: David Howells Signed-off-by: Dmitry Kasatkin Signed-off-by: Mimi Zohar --- diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig index 862b01fe6172..82e7d6b0c276 100644 --- a/crypto/asymmetric_keys/Kconfig +++ b/crypto/asymmetric_keys/Kconfig @@ -13,6 +13,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE tristate "Asymmetric public-key crypto algorithm subtype" select MPILIB select PUBLIC_KEY_ALGO_RSA + select CRYPTO_HASH_INFO help This option provides support for asymmetric public key type handling. If signature generation and/or verification are to be used, diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c index 49ac8d848ed1..97eb001960b9 100644 --- a/crypto/asymmetric_keys/public_key.c +++ b/crypto/asymmetric_keys/public_key.c @@ -36,18 +36,6 @@ const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST] = { }; EXPORT_SYMBOL_GPL(pkey_algo); -const char *const pkey_hash_algo_name[PKEY_HASH__LAST] = { - [PKEY_HASH_MD4] = "md4", - [PKEY_HASH_MD5] = "md5", - [PKEY_HASH_SHA1] = "sha1", - [PKEY_HASH_RIPE_MD_160] = "rmd160", - [PKEY_HASH_SHA256] = "sha256", - [PKEY_HASH_SHA384] = "sha384", - [PKEY_HASH_SHA512] = "sha512", - [PKEY_HASH_SHA224] = "sha224", -}; -EXPORT_SYMBOL_GPL(pkey_hash_algo_name); - const char *const pkey_id_type_name[PKEY_ID_TYPE__LAST] = { [PKEY_ID_PGP] = "PGP", [PKEY_ID_X509] = "X509", diff --git a/crypto/asymmetric_keys/rsa.c b/crypto/asymmetric_keys/rsa.c index 4a6a0696f8a3..90a17f59ba28 100644 --- a/crypto/asymmetric_keys/rsa.c +++ b/crypto/asymmetric_keys/rsa.c @@ -73,13 +73,13 @@ static const struct { size_t size; } RSA_ASN1_templates[PKEY_HASH__LAST] = { #define _(X) { RSA_digest_info_##X, sizeof(RSA_digest_info_##X) } - [PKEY_HASH_MD5] = _(MD5), - [PKEY_HASH_SHA1] = _(SHA1), - [PKEY_HASH_RIPE_MD_160] = _(RIPE_MD_160), - [PKEY_HASH_SHA256] = _(SHA256), - [PKEY_HASH_SHA384] = _(SHA384), - [PKEY_HASH_SHA512] = _(SHA512), - [PKEY_HASH_SHA224] = _(SHA224), + [HASH_ALGO_MD5] = _(MD5), + [HASH_ALGO_SHA1] = _(SHA1), + [HASH_ALGO_RIPE_MD_160] = _(RIPE_MD_160), + [HASH_ALGO_SHA256] = _(SHA256), + [HASH_ALGO_SHA384] = _(SHA384), + [HASH_ALGO_SHA512] = _(SHA512), + [HASH_ALGO_SHA224] = _(SHA224), #undef _ }; diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c index 144201ccba0c..29893162497c 100644 --- a/crypto/asymmetric_keys/x509_cert_parser.c +++ b/crypto/asymmetric_keys/x509_cert_parser.c @@ -154,32 +154,32 @@ int x509_note_pkey_algo(void *context, size_t hdrlen, return -ENOPKG; /* Unsupported combination */ case OID_md4WithRSAEncryption: - ctx->cert->sig.pkey_hash_algo = PKEY_HASH_MD5; + ctx->cert->sig.pkey_hash_algo = HASH_ALGO_MD5; ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA; break; case OID_sha1WithRSAEncryption: - ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA1; + ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA1; ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA; break; case OID_sha256WithRSAEncryption: - ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA256; + ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA256; ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA; break; case OID_sha384WithRSAEncryption: - ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA384; + ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA384; ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA; break; case OID_sha512WithRSAEncryption: - ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA512; + ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA512; ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA; break; case OID_sha224WithRSAEncryption: - ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA224; + ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA224; ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA; break; } diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h index 87d9cc26f630..04c81bd0f3f2 100644 --- a/crypto/asymmetric_keys/x509_parser.h +++ b/crypto/asymmetric_keys/x509_parser.h @@ -21,6 +21,8 @@ struct x509_certificate { char *authority; /* Authority key fingerprint as hex */ struct tm valid_from; struct tm valid_to; + enum pkey_algo pkey_algo : 8; /* Public key algorithm */ + enum hash_algo sig_hash_algo : 8; /* Signature hash algorithm */ const void *tbs; /* Signed data */ unsigned tbs_size; /* Size of signed data */ unsigned raw_sig_size; /* Size of sigature */ diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c index 6abc27f2e8a5..0a6bfad54916 100644 --- a/crypto/asymmetric_keys/x509_public_key.c +++ b/crypto/asymmetric_keys/x509_public_key.c @@ -96,7 +96,7 @@ int x509_get_sig_params(struct x509_certificate *cert) /* Allocate the hashing algorithm we're going to need and find out how * big the hash operational data will be. */ - tfm = crypto_alloc_shash(pkey_hash_algo_name[cert->sig.pkey_hash_algo], 0, 0); + tfm = crypto_alloc_shash(hash_algo_name[cert->sig.pkey_hash_algo], 0, 0); if (IS_ERR(tfm)) return (PTR_ERR(tfm) == -ENOENT) ? -ENOPKG : PTR_ERR(tfm); @@ -199,7 +199,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep) cert->sig.pkey_hash_algo >= PKEY_HASH__LAST || !pkey_algo[cert->pub->pkey_algo] || !pkey_algo[cert->sig.pkey_algo] || - !pkey_hash_algo_name[cert->sig.pkey_hash_algo]) { + !hash_algo_name[cert->sig.pkey_hash_algo]) { ret = -ENOPKG; goto error_free_cert; } @@ -213,9 +213,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep) cert->valid_to.tm_year + 1900, cert->valid_to.tm_mon + 1, cert->valid_to.tm_mday, cert->valid_to.tm_hour, cert->valid_to.tm_min, cert->valid_to.tm_sec); - pr_devel("Cert Signature: %s + %s\n", - pkey_algo_name[cert->sig.pkey_algo], - pkey_hash_algo_name[cert->sig.pkey_hash_algo]); + pr_devel("Cert Signature: %s\n", + hash_algo_name[cert->sig.pkey_hash_algo]); if (!cert->fingerprint) { pr_warn("Cert for '%s' must have a SubjKeyId extension\n", diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h index b34fda4dcabf..fc09732613ad 100644 --- a/include/crypto/public_key.h +++ b/include/crypto/public_key.h @@ -15,6 +15,7 @@ #define _LINUX_PUBLIC_KEY_H #include +#include enum pkey_algo { PKEY_ALGO_DSA, @@ -25,19 +26,8 @@ enum pkey_algo { extern const char *const pkey_algo_name[PKEY_ALGO__LAST]; extern const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST]; -enum pkey_hash_algo { - PKEY_HASH_MD4, - PKEY_HASH_MD5, - PKEY_HASH_SHA1, - PKEY_HASH_RIPE_MD_160, - PKEY_HASH_SHA256, - PKEY_HASH_SHA384, - PKEY_HASH_SHA512, - PKEY_HASH_SHA224, - PKEY_HASH__LAST -}; - -extern const char *const pkey_hash_algo_name[PKEY_HASH__LAST]; +/* asymmetric key implementation supports only up to SHA224 */ +#define PKEY_HASH__LAST (HASH_ALGO_SHA224 + 1) enum pkey_id_type { PKEY_ID_PGP, /* OpenPGP generated key ID */ @@ -91,7 +81,7 @@ struct public_key_signature { u8 digest_size; /* Number of bytes in digest */ u8 nr_mpi; /* Occupancy of mpi[] */ enum pkey_algo pkey_algo : 8; - enum pkey_hash_algo pkey_hash_algo : 8; + enum hash_algo pkey_hash_algo : 8; union { MPI mpi[2]; struct { diff --git a/kernel/module_signing.c b/kernel/module_signing.c index 0b6b870dc5e4..be5b8fac4bd0 100644 --- a/kernel/module_signing.c +++ b/kernel/module_signing.c @@ -29,7 +29,7 @@ */ struct module_signature { u8 algo; /* Public-key crypto algorithm [enum pkey_algo] */ - u8 hash; /* Digest algorithm [enum pkey_hash_algo] */ + u8 hash; /* Digest algorithm [enum hash_algo] */ u8 id_type; /* Key identifier type [enum pkey_id_type] */ u8 signer_len; /* Length of signer's name */ u8 key_id_len; /* Length of key identifier */ @@ -40,7 +40,7 @@ struct module_signature { /* * Digest the module contents. */ -static struct public_key_signature *mod_make_digest(enum pkey_hash_algo hash, +static struct public_key_signature *mod_make_digest(enum hash_algo hash, const void *mod, unsigned long modlen) { @@ -55,7 +55,7 @@ static struct public_key_signature *mod_make_digest(enum pkey_hash_algo hash, /* Allocate the hashing algorithm we're going to need and find out how * big the hash operational data will be. */ - tfm = crypto_alloc_shash(pkey_hash_algo_name[hash], 0, 0); + tfm = crypto_alloc_shash(hash_algo_name[hash], 0, 0); if (IS_ERR(tfm)) return (PTR_ERR(tfm) == -ENOENT) ? ERR_PTR(-ENOPKG) : ERR_CAST(tfm); @@ -218,7 +218,7 @@ int mod_verify_sig(const void *mod, unsigned long *_modlen) return -ENOPKG; if (ms.hash >= PKEY_HASH__LAST || - !pkey_hash_algo_name[ms.hash]) + !hash_algo_name[ms.hash]) return -ENOPKG; key = request_asymmetric_key(sig, ms.signer_len,