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fix pending_alert issues

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu
2021-09-18 20:50:22 +08:00
parent 394ece6cdd
commit bbd5a3fded
3 changed files with 29 additions and 12 deletions
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35
library/ssl_msg.c
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@ -5641,24 +5641,37 @@ void mbedtls_ssl_read_version( int *major, int *minor, int transport,
/*
* Send pending fatal alerts or warnings.
* 0, No alert message.
* !0, error from send_alert_message or handshake_step return
*/
int mbedtls_ssl_handle_pending_alert( mbedtls_ssl_context *ssl )
{
int ret;
/* Send alert if requested */
if( ssl->send_alert != 0 )
{
/* Clear send_alert to avoid infinite loop */
ssl->send_alert = 0;
/* No pending alert, return success*/
if( ssl->send_alert == 0 )
return( 0 );
ret = mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
ssl->alert_type );
if( ret != 0 )
return( ret );
ret = mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
ssl->alert_type );
/* Success or send message fail, clear send_alert flag
* except WANT_WRITE. WANT_WRITE means need re-send message.
*/
if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
{
ssl->send_alert = 0;
}
return( 0 );
if( ret != 0 )
{
/* some errors on send alert message */
return( ret );
}
/* Assume alert_reason == handshake_step return */
return( ssl->alert_reason );
}
/*