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Make use of CRT acquire/release in ssl_write_certificate_request()

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Hanno Becker 2019-02-26 16:49:57 +00:00
parent 30649f7a17
commit 232f8faf00
1 changed files with 11 additions and 2 deletions
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13
library/ssl_srv.c
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@ -2991,24 +2991,33 @@ static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
while( crt != NULL && crt->raw.p != NULL )
{
dn_size = crt->subject_raw.len;
mbedtls_x509_crt_frame *frame;
ret = mbedtls_x509_crt_frame_acquire( crt, &frame );
if( ret != 0 )
return( ret );
dn_size = frame->subject_raw_with_hdr.len;
if( end < p ||
(size_t)( end - p ) < dn_size ||
(size_t)( end - p ) < 2 + dn_size )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "skipping CAs: buffer too short" ) );
mbedtls_x509_crt_frame_release( crt, frame );
break;
}
*p++ = (unsigned char)( dn_size >> 8 );
*p++ = (unsigned char)( dn_size );
memcpy( p, crt->subject_raw.p, dn_size );
memcpy( p, frame->subject_raw_with_hdr.p, dn_size );
p += dn_size;
MBEDTLS_SSL_DEBUG_BUF( 3, "requested DN", p - dn_size, dn_size );
total_dn_size += 2 + dn_size;
mbedtls_x509_crt_frame_release( crt, frame );
crt = crt->next;
}
}