Hi,
On 28-02-18 14:52, Joost Rijneveld wrote:
> In tls_ctx_use_external_private_key, the return codes were inverted
> compared to what is documented in ssl_backend.h (and what can
> reasonably be expected). Internally the return code is never checked,
> so this did not directly result in any change of behavior.
> ---
> src/openvpn/ssl_mbedtls.c | 6 +++---
> src/openvpn/ssl_openssl.c | 4 ++--
> 2 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/src/openvpn/ssl_mbedtls.c b/src/openvpn/ssl_mbedtls.c
> index 3906cd55..8e31980a 100644
> --- a/src/openvpn/ssl_mbedtls.c
> +++ b/src/openvpn/ssl_mbedtls.c
> @@ -630,7 +630,7 @@ tls_ctx_use_external_private_key(struct tls_root_ctx *ctx,
>
> if (ctx->crt_chain == NULL)
> {
> - return 0;
> + return 1;
> }
>
> ALLOC_OBJ_CLEAR(ctx->external_key, struct external_context);
> @@ -640,10 +640,10 @@ tls_ctx_use_external_private_key(struct tls_root_ctx
> *ctx,
> if (!mbed_ok(mbedtls_pk_setup_rsa_alt(ctx->priv_key, ctx->external_key,
> NULL, external_pkcs1_sign,
> external_key_len)))
> {
> - return 0;
> + return 1;
> }
>
> - return 1;
> + return 0;
> }
> #endif /* ifdef MANAGMENT_EXTERNAL_KEY */
>
> diff --git a/src/openvpn/ssl_openssl.c b/src/openvpn/ssl_openssl.c
> index d91458b0..8ef68ebd 100644
> --- a/src/openvpn/ssl_openssl.c
> +++ b/src/openvpn/ssl_openssl.c
> @@ -1327,11 +1327,11 @@ tls_ctx_use_external_private_key(struct tls_root_ctx
> *ctx,
> goto err;
> }
> #endif /* OPENSSL_VERSION_NUMBER > 1.1.0 dev */
> - return 1;
> + return 0;
>
> err:
> crypto_msg(M_FATAL, "Cannot enable SSL external private key capability");
> - return 0;
> + return 1;
> }
>
> #endif /* ifdef MANAGMENT_EXTERNAL_KEY */
>
Thanks for the patch, and pointing out this inconsistency. Changes make
sense and make this function follow what seems to be the default pattern
in the surrounding code.
Acked-by: Steffan Karger <stef...@karger.me>
(What bothers me more is that we don't actually check the return values,
but I'll send a follow-up patch to fix that.)
-Steffan
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