[gnutls-devel] GnuTLS | Fix issues in record_size_limit extension handling (!879)

[Development of GNU's TLS library]

Hubert Kario commented on a discussion on lib/ext/max_record.c:

>  	} else {		/* server side */
>  
> +		if (session->internals.hsk_flags & HSK_RECORD_SIZE_LIMIT_SENT)
> +			return 0;
> +
>  		if (session->security_parameters.max_record_recv_size !=
>  		    DEFAULT_MAX_RECORD_SIZE) {
>  			ret = _gnutls_mre_record2num
>  			      (session->security_parameters.
>  			       max_record_recv_size);
> -
> -			/* it's not an error, as long as we send the
> -			 * record_size_limit extension with that value */
>  			if (ret < 0)
> -				return 0;
> +				return gnutls_assert_val(ret);

I've actually went and implemented it: https://github.com/tomato42/tlsfuzzer/pull/506

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