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Merge pull request #3777 from hanno-arm/x509-info-optimization_rebased

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Reduce ROM usage due to X.509 info
This commit is contained in:
Dave Rodgman
2021-04-28 17:31:55 +01:00
committed by GitHub
parent e67665ca20 fa1f904990
commit c86f330aed
37 changed files with 493 additions and 239 deletions
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11
include/mbedtls/config.h
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@ -2143,6 +2143,17 @@
*/
#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
/**
* \def MBEDTLS_X509_REMOVE_INFO
*
* Disable mbedtls_x509_*_info() and related APIs.
*
* Uncomment to omit mbedtls_x509_*_info(), as well as mbedtls_debug_print_crt()
* and other functions/constants only used by these functions, thus reducing
* the code footprint by several KB.
*/
//#define MBEDTLS_X509_REMOVE_INFO
/**
* \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
*

8
include/mbedtls/debug.h
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@ -59,9 +59,13 @@
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#if !defined(MBEDTLS_X509_REMOVE_INFO)
#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) \
mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt )
#endif
#else
#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 )
#endif /* MBEDTLS_X509_REMOVE_INFO */
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_ECDH_C)
#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) \
@ -248,7 +252,7 @@ void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
const char *text, const mbedtls_ecp_point *X );
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_INFO)
/**
* \brief Print a X.509 certificate structure to the debug output. This
* function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro,

4
include/mbedtls/oid.h
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@ -441,8 +441,10 @@ typedef struct mbedtls_oid_descriptor_t
{
const char *asn1; /*!< OID ASN.1 representation */
size_t asn1_len; /*!< length of asn1 */
#if !defined(MBEDTLS_X509_REMOVE_INFO)
const char *name; /*!< official name (e.g. from RFC) */
const char *description; /*!< human friendly description */
#endif
} mbedtls_oid_descriptor_t;
/**
@ -582,6 +584,7 @@ int mbedtls_oid_get_md_alg( const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_a
int mbedtls_oid_get_md_hmac( const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_hmac );
#endif /* MBEDTLS_MD_C */
#if !defined(MBEDTLS_X509_REMOVE_INFO)
/**
* \brief Translate Extended Key Usage OID into description
*
@ -591,6 +594,7 @@ int mbedtls_oid_get_md_hmac( const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_
* \return 0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
*/
int mbedtls_oid_get_extended_key_usage( const mbedtls_asn1_buf *oid, const char **desc );
#endif
/**
* \brief Translate certificate policies OID into description

2
include/mbedtls/x509.h
View File

@ -316,9 +316,11 @@ int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
mbedtls_x509_buf *serial );
int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
mbedtls_x509_buf *ext, int tag );
#if !defined(MBEDTLS_X509_REMOVE_INFO)
int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
const void *sig_opts );
#endif
int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name );
int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name );
int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,

2
include/mbedtls/x509_crl.h
View File

@ -134,6 +134,7 @@ int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, s
int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path );
#endif /* MBEDTLS_FS_IO */
#if !defined(MBEDTLS_X509_REMOVE_INFO)
/**
* \brief Returns an informational string about the CRL.
*
@ -147,6 +148,7 @@ int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path );
*/
int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_crl *crl );
#endif /* !MBEDTLS_X509_REMOVE_INFO */
/**
* \brief Initialize a CRL (chain)

71
include/mbedtls/x509_crt.h
View File

@ -176,6 +176,74 @@ mbedtls_x509_crt_profile;
#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512
#endif
/* This macro unfolds to the concatenation of macro invocations
* X509_CRT_ERROR_INFO( error code,
* error code as string,
* human readable description )
* where X509_CRT_ERROR_INFO is defined by the user.
* See x509_crt.c for an example of how to use this. */
#define MBEDTLS_X509_CRT_ERROR_INFO_LIST \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_EXPIRED, \
"MBEDTLS_X509_BADCERT_EXPIRED", \
"The certificate validity has expired" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_REVOKED, \
"MBEDTLS_X509_BADCERT_REVOKED", \
"The certificate has been revoked (is on a CRL)" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_CN_MISMATCH, \
"MBEDTLS_X509_BADCERT_CN_MISMATCH", \
"The certificate Common Name (CN) does not match with the expected CN" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_NOT_TRUSTED, \
"MBEDTLS_X509_BADCERT_NOT_TRUSTED", \
"The certificate is not correctly signed by the trusted CA" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCRL_NOT_TRUSTED, \
"MBEDTLS_X509_BADCRL_NOT_TRUSTED", \
"The CRL is not correctly signed by the trusted CA" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCRL_EXPIRED, \
"MBEDTLS_X509_BADCRL_EXPIRED", \
"The CRL is expired" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_MISSING, \
"MBEDTLS_X509_BADCERT_MISSING", \
"Certificate was missing" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_SKIP_VERIFY, \
"MBEDTLS_X509_BADCERT_SKIP_VERIFY", \
"Certificate verification was skipped" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_OTHER, \
"MBEDTLS_X509_BADCERT_OTHER", \
"Other reason (can be used by verify callback)" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_FUTURE, \
"MBEDTLS_X509_BADCERT_FUTURE", \
"The certificate validity starts in the future" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCRL_FUTURE, \
"MBEDTLS_X509_BADCRL_FUTURE", \
"The CRL is from the future" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_KEY_USAGE, \
"MBEDTLS_X509_BADCERT_KEY_USAGE", \
"Usage does not match the keyUsage extension" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_EXT_KEY_USAGE, \
"MBEDTLS_X509_BADCERT_EXT_KEY_USAGE", \
"Usage does not match the extendedKeyUsage extension" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_NS_CERT_TYPE, \
"MBEDTLS_X509_BADCERT_NS_CERT_TYPE", \
"Usage does not match the nsCertType extension" ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_BAD_MD, \
"MBEDTLS_X509_BADCERT_BAD_MD", \
"The certificate is signed with an unacceptable hash." ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_BAD_PK, \
"MBEDTLS_X509_BADCERT_BAD_PK", \
"The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA)." ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCERT_BAD_KEY, \
"MBEDTLS_X509_BADCERT_BAD_KEY", \
"The certificate is signed with an unacceptable key (eg bad curve, RSA too short)." ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCRL_BAD_MD, \
"MBEDTLS_X509_BADCRL_BAD_MD", \
"The CRL is signed with an unacceptable hash." ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCRL_BAD_PK, \
"MBEDTLS_X509_BADCRL_BAD_PK", \
"The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA)." ) \
X509_CRT_ERROR_INFO( MBEDTLS_X509_BADCRL_BAD_KEY, \
"MBEDTLS_X509_BADCRL_BAD_KEY", \
"The CRL is signed with an unacceptable key (eg bad curve, RSA too short)." )
/**
* Container for writing a certificate (CRT)
*/
@ -509,6 +577,8 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path );
*/
int mbedtls_x509_parse_subject_alt_name( const mbedtls_x509_buf *san_buf,
mbedtls_x509_subject_alternative_name *san );
#if !defined(MBEDTLS_X509_REMOVE_INFO)
/**
* \brief Returns an informational string about the
* certificate.
@ -538,6 +608,7 @@ int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
*/
int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix,
uint32_t flags );
#endif /* !MBEDTLS_X509_REMOVE_INFO */
/**
* \brief Verify a chain of certificates.

2
include/mbedtls/x509_csr.h
View File

@ -121,6 +121,7 @@ int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, siz
int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path );
#endif /* MBEDTLS_FS_IO */
#if !defined(MBEDTLS_X509_REMOVE_INFO)
/**
* \brief Returns an informational string about the
* CSR.
@ -135,6 +136,7 @@ int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path );
*/
int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_csr *csr );
#endif /* !MBEDTLS_X509_REMOVE_INFO */
/**
* \brief Initialize a CSR