How will it work on Windows?
Plugins should not require to be linked against anything.
On Wed, Aug 1, 2012 at 2:57 PM, Heiko Hund <heiko.h...@sophos.com> wrote:
> Some plugins want to add messages to the openvpn log file. The
> plugin_log() API provides a way for them to do so.
>
> Signed-off-by: Heiko Hund <heiko.h...@sophos.com>
> ---
> include/openvpn-plugin.h | 23 +++++++++++++++++++++
> src/openvpn/plugin.c | 51
> ++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 74 insertions(+)
>
> diff --git a/include/openvpn-plugin.h b/include/openvpn-plugin.h
> index 1c80eec..aaa0a7f 100644
> --- a/include/openvpn-plugin.h
> +++ b/include/openvpn-plugin.h
> @@ -47,6 +47,29 @@ typedef X509 openvpn_x509_cert_t;
> extern "C" {
> #endif
>
> +/**
> + * plugin_log() - plug-in log function.
> + *
> + * Use this function to add information to the OpenVPN log file.
> + * Messages will only be displayed if the plugin_name parameter is set.
> + * Debug messages will only be displayed with plug-in debug log verbosity.
> + *
> + */
> +typedef enum
> +{
> + PLOG_ERR = (1 << 0), /* Error condition message */
> + PLOG_WARN = (1 << 1), /* General warning message */
> + PLOG_NOTE = (1 << 2), /* Informational message */
> + PLOG_DEBUG = (1 << 3), /* Debug message, displayed if verb >= 7 */
> +
> + PLOG_ERRNO = (1 << 8), /* Add error description to message */
> + PLOG_NOMUTE = (1 << 9), /* Mute setting does not apply for message */
> +
> +} openvpn_plugin_log_flags_t;
> +
> +void plugin_log (openvpn_plugin_log_flags_t flags, const char *plugin_name,
> const char *format, ...);
> +
> +
> /*
> * Plug-in types. These types correspond to the set of script callbacks
> * supported by OpenVPN.
> diff --git a/src/openvpn/plugin.c b/src/openvpn/plugin.c
> index 7ce2f5e..0d33b55 100644
> --- a/src/openvpn/plugin.c
> +++ b/src/openvpn/plugin.c
> @@ -286,6 +286,57 @@ plugin_init_item (struct plugin *p, const struct
> plugin_option *o)
> gc_free (&gc);
> }
>
> +
> +void
> +plugin_log (openvpn_plugin_log_flags_t flags, const char *name, const char
> *format, ...)
> +{
> + unsigned int msg_flags;
> +
> + if (!format)
> + return;
> +
> + if (!name || name[0] == '\0')
> + {
> + msg (D_PLUGIN_DEBUG, "PLUGIN: suppressed log message from plugin with
> unknown name");
> + return;
> + }
> +
> + if (flags & PLOG_ERR)
> + msg_flags = M_INFO | M_NONFATAL;
> + else if (flags & PLOG_WARN)
> + msg_flags = M_INFO | M_WARN;
> + else if (flags & PLOG_NOTE)
> + msg_flags = M_INFO;
> + else if (flags & PLOG_DEBUG)
> + msg_flags = D_PLUGIN_DEBUG;
> +
> + if (flags & PLOG_ERRNO)
> + msg_flags |= M_ERRNO;
> + if (flags & PLOG_NOMUTE)
> + msg_flags |= M_NOMUTE;
> +
> + if (MSG_TEST (msg_flags))
> + {
> + struct gc_arena gc;
> + va_list arglist;
> + char* msg_fmt;
> +
> + /* Never add instance prefix; not thread safe */
> + msg_flags |= M_NOIPREFIX;
> +
> + gc_init (&gc);
> + msg_fmt = gc_malloc (ERR_BUF_SIZE, false, &gc);
> + openvpn_snprintf (msg_fmt, ERR_BUF_SIZE, "PLUGIN %s: %s", name,
> format);
> +
> + va_start (arglist, format);
> + x_msg_va (msg_flags, msg_fmt, arglist);
> + va_end (arglist);
> +
> + gc_free (&gc);
> + }
> +}
> +
> +
> static void
> plugin_open_item (struct plugin *p,
> const struct plugin_option *o,
> --
> 1.7.9.5
>
>
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