Adapt digest header files to support both original libs and MbedTLS by switching on/off MBEDTLS_LIB_CRYPTO. Introduce <alg>_LEGACY kconfig for legacy hash implementations.
FIXME: `IS_ENABLED` or `CONFIG_IS_ENABLED` is not applicable here, since including <linux/kconfig.h> causes undefined reference on schedule() with sandbox build. As <linux/kconfig.h> includes <generated/autoconf.h> which enables `CONFIG_HW_WATCHDOG` and `CONFIG_WATCHDOG` but no schedule() are defined in sandbox build. `#if defined(CONFIG_MBEDTLS_LIB_CRYPTO)` is a workaround.
Signed-off-by: Raymond Mao raymond.mao@linaro.org --- Changes in v2 - Initial patch. Changes in v3 - Remove the changes that were done in previous clean-up patch set. Changes in v4 - Introduce <alg>_LEGACY kconfig for legacy hash implementations. - Minor fix of the include directories.
include/u-boot/md5.h | 7 +++ include/u-boot/sha1.h | 21 ++++++++- include/u-boot/sha256.h | 20 +++++++++ include/u-boot/sha512.h | 22 ++++++++-- lib/Makefile | 10 +++-- lib/mbedtls/Kconfig | 96 +++++++++++++++++++++++++++++++++++++++++ 6 files changed, 168 insertions(+), 8 deletions(-)
diff --git a/include/u-boot/md5.h b/include/u-boot/md5.h index c465925ea8d..69898fcbe49 100644 --- a/include/u-boot/md5.h +++ b/include/u-boot/md5.h @@ -6,10 +6,16 @@ #ifndef _MD5_H #define _MD5_H
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +#include <mbedtls/md5.h> +#endif #include "compiler.h"
#define MD5_SUM_LEN 16
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +typedef mbedtls_md5_context MD5Context; +#else typedef struct MD5Context { __u32 buf[4]; __u32 bits[2]; @@ -18,6 +24,7 @@ typedef struct MD5Context { __u32 in32[16]; }; } MD5Context; +#endif
void MD5Init(MD5Context *ctx); void MD5Update(MD5Context *ctx, unsigned char const *buf, unsigned int len); diff --git a/include/u-boot/sha1.h b/include/u-boot/sha1.h index c1e9f67068d..ab88134fb98 100644 --- a/include/u-boot/sha1.h +++ b/include/u-boot/sha1.h @@ -16,6 +16,21 @@
#include <linux/types.h>
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +/* + * FIXME: + * MbedTLS define the members of "mbedtls_sha256_context" as private, + * but "state" needs to be access by arch/arm/cpu/armv8/sha1_ce_glue. + * MBEDTLS_ALLOW_PRIVATE_ACCESS needs to be enabled to allow the external + * access. + * Directly including <external/mbedtls/library/common.h> is not allowed, + * since this will include <malloc.h> and break the sandbox test. + */ +#define MBEDTLS_ALLOW_PRIVATE_ACCESS + +#include <mbedtls/sha1.h> +#endif + #ifdef __cplusplus extern "C" { #endif @@ -26,6 +41,9 @@ extern "C" {
extern const uint8_t sha1_der_prefix[];
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +typedef mbedtls_sha1_context sha1_context; +#else /** * \brief SHA-1 context structure */ @@ -36,13 +54,14 @@ typedef struct unsigned char buffer[64]; /*!< data block being processed */ } sha1_context; +#endif
/** * \brief SHA-1 context setup * * \param ctx SHA-1 context to be initialized */ -void sha1_starts( sha1_context *ctx ); +void sha1_starts(sha1_context *ctx);
/** * \brief SHA-1 process buffer diff --git a/include/u-boot/sha256.h b/include/u-boot/sha256.h index a4fe176c0b4..b58d5b58d39 100644 --- a/include/u-boot/sha256.h +++ b/include/u-boot/sha256.h @@ -3,6 +3,22 @@
#include <linux/types.h>
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +/* + * FIXME: + * MbedTLS define the members of "mbedtls_sha256_context" as private, + * but "state" needs to be access by arch/arm/cpu/armv8/sha256_ce_glue. + * MBEDTLS_ALLOW_PRIVATE_ACCESS needs to be enabled to allow the external + * access. + * Directly including <external/mbedtls/library/common.h> is not allowed, + * since this will include <malloc.h> and break the sandbox test. + */ +#define MBEDTLS_ALLOW_PRIVATE_ACCESS + +#include <mbedtls/sha256.h> +#endif + +#define SHA224_SUM_LEN 28 #define SHA256_SUM_LEN 32 #define SHA256_DER_LEN 19
@@ -11,11 +27,15 @@ extern const uint8_t sha256_der_prefix[]; /* Reset watchdog each time we process this many bytes */ #define CHUNKSZ_SHA256 (64 * 1024)
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +typedef mbedtls_sha256_context sha256_context; +#else typedef struct { uint32_t total[2]; uint32_t state[8]; uint8_t buffer[64]; } sha256_context; +#endif
void sha256_starts(sha256_context * ctx); void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length); diff --git a/include/u-boot/sha512.h b/include/u-boot/sha512.h index 90bd96a3f8c..2b5a21a7c70 100644 --- a/include/u-boot/sha512.h +++ b/include/u-boot/sha512.h @@ -3,6 +3,10 @@
#include <linux/types.h>
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +#include <mbedtls/sha512.h> +#endif + #define SHA384_SUM_LEN 48 #define SHA384_DER_LEN 19 #define SHA512_SUM_LEN 64 @@ -12,11 +16,16 @@ #define CHUNKSZ_SHA384 (16 * 1024) #define CHUNKSZ_SHA512 (16 * 1024)
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +typedef mbedtls_sha512_context sha384_context; +typedef mbedtls_sha512_context sha512_context; +#else typedef struct { uint64_t state[SHA512_SUM_LEN / 8]; uint64_t count[2]; uint8_t buf[SHA512_BLOCK_SIZE]; } sha512_context; +#endif
extern const uint8_t sha512_der_prefix[];
@@ -29,12 +38,19 @@ void sha512_csum_wd(const unsigned char *input, unsigned int ilen,
extern const uint8_t sha384_der_prefix[];
+#if defined(CONFIG_MBEDTLS_LIB_CRYPTO) +void sha384_starts(sha512_context *ctx); +void +sha384_update(sha512_context *ctx, const uint8_t *input, uint32_t length); +void sha384_finish(sha512_context *ctx, uint8_t digest[SHA384_SUM_LEN]); +void sha384_csum_wd(const unsigned char *input, unsigned int length, + unsigned char *output, unsigned int chunk_sz); +#else void sha384_starts(sha512_context * ctx); void sha384_update(sha512_context *ctx, const uint8_t *input, uint32_t length); void sha384_finish(sha512_context * ctx, uint8_t digest[SHA384_SUM_LEN]);
void sha384_csum_wd(const unsigned char *input, unsigned int ilen, - unsigned char *output, unsigned int chunk_sz); - - + unsigned char *output, unsigned int chunk_sz); +#endif #endif /* _SHA512_H */ diff --git a/lib/Makefile b/lib/Makefile index a4600b09f49..f76af77a969 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -69,14 +69,16 @@ obj-$(CONFIG_$(SPL_TPL_)CRC16) += crc16.o obj-y += crypto/
obj-$(CONFIG_$(SPL_TPL_)ACPI) += acpi/ -obj-$(CONFIG_$(SPL_)MD5) += md5.o obj-$(CONFIG_ECDSA) += ecdsa/ obj-$(CONFIG_$(SPL_)RSA) += rsa/ obj-$(CONFIG_HASH) += hash-checksum.o obj-$(CONFIG_BLAKE2) += blake2/blake2b.o -obj-$(CONFIG_$(SPL_)SHA1) += sha1.o -obj-$(CONFIG_$(SPL_)SHA256) += sha256.o -obj-$(CONFIG_$(SPL_)SHA512) += sha512.o + +obj-$(CONFIG_$(SPL_)MD5_LEGACY) += md5.o +obj-$(CONFIG_$(SPL_)SHA1_LEGACY) += sha1.o +obj-$(CONFIG_$(SPL_)SHA256_LEGACY) += sha256.o +obj-$(CONFIG_$(SPL_)SHA512_LEGACY) += sha512.o + obj-$(CONFIG_CRYPT_PW) += crypt/ obj-$(CONFIG_$(SPL_)ASN1_DECODER) += asn1_decoder.o
diff --git a/lib/mbedtls/Kconfig b/lib/mbedtls/Kconfig index 3e9057f1acf..6662a9d20f1 100644 --- a/lib/mbedtls/Kconfig +++ b/lib/mbedtls/Kconfig @@ -21,9 +21,105 @@ if LEGACY_CRYPTO
config LEGACY_CRYPTO_BASIC bool "legacy basic crypto libraries" + select MD5_LEGACY if MD5 + select SHA1_LEGACY if SHA1 + select SHA256_LEGACY if SHA256 + select SHA512_LEGACY if SHA512 + select SHA384_LEGACY if SHA384 + select SPL_MD5_LEGACY if MD5 && SPL + select SPL_SHA1_LEGACY if SHA1 && SPL + select SPL_SHA256_LEGACY if SHA256 && SPL + select SPL_SHA512_LEGACY if SHA512 && SPL + select SPL_SHA384_LEGACY if SHA384 && SPL help Enable legacy basic crypto libraries.
+if LEGACY_CRYPTO_BASIC + +config SHA1_LEGACY + bool "Enable SHA1 support with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SHA1 + help + This option enables support of hashing using SHA1 algorithm + with legacy crypto library. + +config SHA256_LEGACY + bool "Enable SHA256 support with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SHA256 + help + This option enables support of hashing using SHA256 algorithm + with legacy crypto library. + +config SHA512_LEGACY + bool "Enable SHA512 support with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SHA512 + default y if TI_SECURE_DEVICE && FIT_SIGNATURE + help + This option enables support of hashing using SHA512 algorithm + with legacy crypto library. + +config SHA384_LEGACY + bool "Enable SHA384 support with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SHA384 + select SHA512_LEGACY + help + This option enables support of hashing using SHA384 algorithm + with legacy crypto library. + +config MD5_LEGACY + bool "Enable MD5 support with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && MD5 + help + This option enables support of hashing using MD5 algorithm + with legacy crypto library. + +if SPL + +config SPL_SHA1_LEGACY + bool "Enable SHA1 support in SPL with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SPL_SHA1 + default y if SHA1 && LEGACY_CRYPTO_BASIC + help + This option enables support of hashing using SHA1 algorithm + with legacy crypto library. + +config SPL_SHA256_LEGACY + bool "Enable SHA256 support in SPL with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SPL_SHA256 + default y if SHA256 && LEGACY_CRYPTO_BASIC + help + This option enables support of hashing using SHA256 algorithm + with legacy crypto library. + +config SPL_SHA512_LEGACY + bool "Enable SHA512 support in SPL with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SPL_SHA512 + default y if SHA512 && LEGACY_CRYPTO_BASIC + help + This option enables support of hashing using SHA512 algorithm + with legacy crypto library. + +config SPL_SHA384_LEGACY + bool "Enable SHA384 support in SPL with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SPL_SHA384 + default y if SHA384 && LEGACY_CRYPTO_BASIC + select SPL_SHA512 + help + This option enables support of hashing using SHA384 algorithm + with legacy crypto library. + +config SPL_MD5_LEGACY + bool "Enable MD5 support in SPL with legacy crypto library" + depends on LEGACY_CRYPTO_BASIC && SPL_MD5 + default y if MD5 && LEGACY_CRYPTO_BASIC + help + This option enables support of hashing using MD5 algorithm + with legacy crypto library. + +endif # SPL + +endif # LEGACY_CRYPTO_BASIC + config LEGACY_CRYPTO_CERT bool "legacy certificate libraries" help