Hi,
On 11/07/2020 11:36, Arne Schwabe wrote:
> This deviates from Fabian's original patch that relied on the now
> removed connection_established bool as pointer being NULL or non NULL as
> implicit third state and makeing connection_established as a substate of
> (cas_context == CAS_PENDING)
>
> Signed-off-by: Arne Schwabe <[email protected]>
>
> Patch V5: extend cas_context with two new states instead adding an
> extra mini state machine.
>
> Signed-off-by: Arne Schwabe <[email protected]>
> ---
> src/openvpn/multi.c | 2 +-
> src/openvpn/multi.h | 1 +
> src/openvpn/openvpn.h | 24 +++++++++++++++++-------
> 3 files changed, 19 insertions(+), 8 deletions(-)
>
> diff --git a/src/openvpn/multi.c b/src/openvpn/multi.c
> index 83848fdc..f9b8af80 100644
> --- a/src/openvpn/multi.c
> +++ b/src/openvpn/multi.c
> @@ -2163,7 +2163,7 @@ multi_client_connect_early_setup(struct multi_context
> *m,
> * Try to source a dynamic config file from the
> * --client-config-dir directory.
> */
> -enum client_connect_return
> +static enum client_connect_return
I don't think this change belongs to this patch .... ?
> multi_client_connect_source_ccd(struct multi_context *m,
> struct multi_instance *mi,
> unsigned int *option_types_found)
> diff --git a/src/openvpn/multi.h b/src/openvpn/multi.h
> index 4fb4d0b6..1d30dcc6 100644
> --- a/src/openvpn/multi.h
> +++ b/src/openvpn/multi.h
> @@ -62,6 +62,7 @@ struct deferred_signal_schedule_entry
> struct timeval wakeup;
> };
>
> +
> /**
> * Server-mode state structure for one single VPN tunnel.
> *
> diff --git a/src/openvpn/openvpn.h b/src/openvpn/openvpn.h
> index a1308852..7c469b01 100644
> --- a/src/openvpn/openvpn.h
> +++ b/src/openvpn/openvpn.h
> @@ -210,6 +210,21 @@ struct context_1
> #endif
> };
>
> +
> +/* client authentication state, CAS_SUCCEEDED must be 0 since
> + * non multi code path still checks this variable but does not initialise it
> + * so the code depends on zero initialisation */
> +enum client_connect_status {
> + CAS_SUCCEEDED=0,
Please add spaces around '='
> + CAS_PENDING,
> + CAS_FAILED,
> + CAS_PARTIAL, /**< Variant of CAS_FAILED: at least one
> + * client-connect script/plugin succeeded
> + * while a later one in the chain failed
> + * (we still need cleanup compared to FAILED)
> + */
> +};
> +
> /**
> * Level 2 %context containing state that is reset on both \c SIGHUP and
> * \c SIGUSR1 restarts.
> @@ -444,13 +459,8 @@ struct context_2
> int push_ifconfig_ipv6_netbits;
> struct in6_addr push_ifconfig_ipv6_remote;
>
> - /* client authentication state, CAS_SUCCEEDED must be 0 */
> -#define CAS_SUCCEEDED 0
> -#define CAS_PENDING 1
> -#define CAS_FAILED 2
> -#define CAS_PARTIAL 3 /* at least one client-connect script/plugin
> - * succeeded while a later one in the chain failed
> */
> - int context_auth;
> +
> + enum client_connect_status context_auth;
>
> struct event_timeout push_request_interval;
> int n_sent_push_requests;
>
The rest looks good and makes sense. Using enum is always better as the
compiler (and the reader) has extra information about how a variable can
be used.
I believe the first chunk with the +static should be moved somewhere
else...but other than that and the missing-spaces comment:
Acked-by: Antonio Quartulli <[email protected]>
--
Antonio Quartulli
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