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Split WANT_READ in two error codes

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This commit restricts WANT_READ to indicate that no data is available on the
underlying transport. To signal the need for further processing - which was
previously also handled through this error code - a new internal error code
MBEDTLS_ERR_SSL_CONTINUE_PROCESSING is introduced.
This commit is contained in:
Hanno Becker
2017-10-10 10:35:08 +01:00
parent 4cb1f4d49c
commit 8ec8102c9a
2 changed files with 53 additions and 14 deletions
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4
library/error.c
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@ -426,7 +426,7 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen )
if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) )
mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" );
if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) )
mbedtls_snprintf( buf, buflen, "SSL - Connection requires a read call" );
mbedtls_snprintf( buf, buflen, "SSL - No data of requested type currently available on underlying transport" );
if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) )
mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" );
if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) )
@ -439,6 +439,8 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen )
mbedtls_snprintf( buf, buflen, "SSL - The alert message received indicates a non-fatal error" );
if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) )
mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" );
if( use_ret == -(MBEDTLS_ERR_SSL_CONTINUE_PROCESSING) )
mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signalling that further message-processing should be done" );
#endif /* MBEDTLS_SSL_TLS_C */
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)