added an alert() bus hook to raise critical system errors and notifications
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@ -350,6 +350,41 @@ static void unregister_listener(private_bus_t *this, entry_t *entry,
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this->listeners->remove_at(this->listeners, enumerator);
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}
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/**
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* Implementation of bus_t.alert
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*/
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static void alert(private_bus_t *this, alert_t alert, ...)
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{
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enumerator_t *enumerator;
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ike_sa_t *ike_sa;
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entry_t *entry;
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va_list args;
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bool keep;
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ike_sa = pthread_getspecific(this->thread_sa);
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this->mutex->lock(this->mutex);
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enumerator = this->listeners->create_enumerator(this->listeners);
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while (enumerator->enumerate(enumerator, &entry))
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{
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if (entry->calling || !entry->listener->alert)
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{
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continue;
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}
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entry->calling++;
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va_start(args, alert);
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keep = entry->listener->alert(entry->listener, ike_sa, alert, args);
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va_end(args);
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entry->calling--;
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if (!keep)
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{
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unregister_listener(this, entry, enumerator);
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}
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}
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enumerator->destroy(enumerator);
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this->mutex->unlock(this->mutex);
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}
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/**
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* Implementation of bus_t.ike_state_change
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*/
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@ -711,6 +746,7 @@ bus_t *bus_create()
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this->public.set_sa = (void(*)(bus_t*,ike_sa_t*))set_sa;
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this->public.log = (void(*)(bus_t*,debug_t,level_t,char*,...))log_;
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this->public.vlog = (void(*)(bus_t*,debug_t,level_t,char*,va_list))vlog;
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this->public.alert = (void(*)(bus_t*, alert_t alert, ...))alert;
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this->public.ike_state_change = (void(*)(bus_t*,ike_sa_t*,ike_sa_state_t))ike_state_change;
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this->public.child_state_change = (void(*)(bus_t*,child_sa_t*,child_sa_state_t))child_state_change;
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this->public.message = (void(*)(bus_t*, message_t *message, bool incoming))message;
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2006 Martin Willi
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* Copyright (C) 2006-2009 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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@ -23,6 +23,7 @@
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typedef enum debug_t debug_t;
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typedef enum level_t level_t;
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typedef enum alert_t alert_t;
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typedef struct bus_t bus_t;
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#include <stdarg.h>
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@ -126,6 +127,12 @@ enum level_t {
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# define DBG4(...) {}
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#endif /* DBG4 */
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/**
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* Kind of alerts to raise.
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*/
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enum alert_t {
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};
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/**
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* The bus receives events and sends them to all registered listeners.
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*
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@ -206,6 +213,15 @@ struct bus_t {
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*/
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void (*vlog)(bus_t *this, debug_t group, level_t level,
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char* format, va_list args);
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/**
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* Raise an alert over the bus.
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*
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* @param alert kind of alert
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* @param ... alert specific attributes
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*/
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void (*alert)(bus_t *this, alert_t alert, ...);
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/**
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* Send a IKE_SA state change event to the bus.
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*
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@ -38,7 +38,7 @@ struct listener_t {
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* Calling bus_t.log() inside of a registered listener is possible,
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* but the bus does not invoke listeners recursively.
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*
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* @param singal kind of the signal (up, down, rekeyed, ...)
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* @param group kind of the signal (up, down, rekeyed, ...)
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* @param level verbosity level of the signal
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* @param thread ID of the thread raised this signal
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* @param ike_sa IKE_SA associated to the event
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@ -46,8 +46,19 @@ struct listener_t {
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* @param args vprintf() style va_list argument list
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" @return TRUE to stay registered, FALSE to unregister
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*/
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bool (*log) (listener_t *this, debug_t group, level_t level, int thread,
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ike_sa_t *ike_sa, char* format, va_list args);
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bool (*log)(listener_t *this, debug_t group, level_t level, int thread,
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ike_sa_t *ike_sa, char* format, va_list args);
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/**
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* Hook called if a critical alert is risen.
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*
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* @param ike_sa IKE_SA associated to the alert, if any
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* @param alert kind of alert
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* @param ... alert specific argument list
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" @return TRUE to stay registered, FALSE to unregister
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*/
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bool (*alert)(listener_t *this, ike_sa_t *ike_sa,
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alert_t alert, va_list args);
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/**
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* Handle state changes in an IKE_SA.
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