Moving charon to libcharon.
This commit is contained in:
Tobias Brunner
@@ -0,0 +1,753 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
#include "bus.h"
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include <daemon.h>
|
||||
#include <threading/thread.h>
|
||||
#include <threading/thread_value.h>
|
||||
#include <threading/condvar.h>
|
||||
#include <threading/mutex.h>
|
||||
|
||||
ENUM(debug_names, DBG_DMN, DBG_LIB,
|
||||
"DMN",
|
||||
"MGR",
|
||||
"IKE",
|
||||
"CHD",
|
||||
"JOB",
|
||||
"CFG",
|
||||
"KNL",
|
||||
"NET",
|
||||
"ENC",
|
||||
"LIB",
|
||||
);
|
||||
|
||||
ENUM(debug_lower_names, DBG_DMN, DBG_LIB,
|
||||
"dmn",
|
||||
"mgr",
|
||||
"ike",
|
||||
"chd",
|
||||
"job",
|
||||
"cfg",
|
||||
"knl",
|
||||
"net",
|
||||
"enc",
|
||||
"lib",
|
||||
);
|
||||
|
||||
typedef struct private_bus_t private_bus_t;
|
||||
|
||||
/**
|
||||
* Private data of a bus_t object.
|
||||
*/
|
||||
struct private_bus_t {
|
||||
/**
|
||||
* Public part of a bus_t object.
|
||||
*/
|
||||
bus_t public;
|
||||
|
||||
/**
|
||||
* List of registered listeners as entry_t's
|
||||
*/
|
||||
linked_list_t *listeners;
|
||||
|
||||
/**
|
||||
* mutex to synchronize active listeners, recursively
|
||||
*/
|
||||
mutex_t *mutex;
|
||||
|
||||
/**
|
||||
* Thread local storage the threads IKE_SA
|
||||
*/
|
||||
thread_value_t *thread_sa;
|
||||
};
|
||||
|
||||
typedef struct entry_t entry_t;
|
||||
|
||||
/**
|
||||
* a listener entry, either active or passive
|
||||
*/
|
||||
struct entry_t {
|
||||
|
||||
/**
|
||||
* registered listener interface
|
||||
*/
|
||||
listener_t *listener;
|
||||
|
||||
/**
|
||||
* is this a active listen() call with a blocking thread
|
||||
*/
|
||||
bool blocker;
|
||||
|
||||
/**
|
||||
* are we currently calling this listener
|
||||
*/
|
||||
int calling;
|
||||
|
||||
/**
|
||||
* condvar where active listeners wait
|
||||
*/
|
||||
condvar_t *condvar;
|
||||
};
|
||||
|
||||
/**
|
||||
* create a listener entry
|
||||
*/
|
||||
static entry_t *entry_create(listener_t *listener, bool blocker)
|
||||
{
|
||||
entry_t *this = malloc_thing(entry_t);
|
||||
|
||||
this->listener = listener;
|
||||
this->blocker = blocker;
|
||||
this->calling = 0;
|
||||
this->condvar = condvar_create(CONDVAR_TYPE_DEFAULT);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* destroy an entry_t
|
||||
*/
|
||||
static void entry_destroy(entry_t *entry)
|
||||
{
|
||||
entry->condvar->destroy(entry->condvar);
|
||||
free(entry);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.add_listener.
|
||||
*/
|
||||
static void add_listener(private_bus_t *this, listener_t *listener)
|
||||
{
|
||||
this->mutex->lock(this->mutex);
|
||||
this->listeners->insert_last(this->listeners, entry_create(listener, FALSE));
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.remove_listener.
|
||||
*/
|
||||
static void remove_listener(private_bus_t *this, listener_t *listener)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
entry_t *entry;
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->listener == listener)
|
||||
{
|
||||
this->listeners->remove_at(this->listeners, enumerator);
|
||||
entry_destroy(entry);
|
||||
break;
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
typedef struct cleanup_data_t cleanup_data_t;
|
||||
|
||||
/**
|
||||
* data to remove a listener using thread_cleanup_t handler
|
||||
*/
|
||||
struct cleanup_data_t {
|
||||
/** bus instance */
|
||||
private_bus_t *this;
|
||||
/** listener entry */
|
||||
entry_t *entry;
|
||||
};
|
||||
|
||||
/**
|
||||
* thread_cleanup_t handler to remove a listener
|
||||
*/
|
||||
static void listener_cleanup(cleanup_data_t *data)
|
||||
{
|
||||
data->this->listeners->remove(data->this->listeners, data->entry, NULL);
|
||||
entry_destroy(data->entry);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.listen.
|
||||
*/
|
||||
static void listen_(private_bus_t *this, listener_t *listener, job_t *job)
|
||||
{
|
||||
bool old;
|
||||
cleanup_data_t data;
|
||||
|
||||
data.this = this;
|
||||
data.entry = entry_create(listener, TRUE);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
this->listeners->insert_last(this->listeners, data.entry);
|
||||
charon->processor->queue_job(charon->processor, job);
|
||||
thread_cleanup_push((thread_cleanup_t)this->mutex->unlock, this->mutex);
|
||||
thread_cleanup_push((thread_cleanup_t)listener_cleanup, &data);
|
||||
old = thread_cancelability(TRUE);
|
||||
while (data.entry->blocker)
|
||||
{
|
||||
data.entry->condvar->wait(data.entry->condvar, this->mutex);
|
||||
}
|
||||
thread_cancelability(old);
|
||||
thread_cleanup_pop(FALSE);
|
||||
/* unlock mutex */
|
||||
thread_cleanup_pop(TRUE);
|
||||
entry_destroy(data.entry);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.set_sa.
|
||||
*/
|
||||
static void set_sa(private_bus_t *this, ike_sa_t *ike_sa)
|
||||
{
|
||||
this->thread_sa->set(this->thread_sa, ike_sa);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.get_sa
|
||||
*/
|
||||
static ike_sa_t* get_sa(private_bus_t *this)
|
||||
{
|
||||
return this->thread_sa->get(this->thread_sa);
|
||||
}
|
||||
|
||||
/**
|
||||
* data associated to a signal, passed to callback
|
||||
*/
|
||||
typedef struct {
|
||||
/** associated IKE_SA */
|
||||
ike_sa_t *ike_sa;
|
||||
/** invoking thread */
|
||||
long thread;
|
||||
/** debug group */
|
||||
debug_t group;
|
||||
/** debug level */
|
||||
level_t level;
|
||||
/** format string */
|
||||
char *format;
|
||||
/** argument list */
|
||||
va_list args;
|
||||
} log_data_t;
|
||||
|
||||
/**
|
||||
* listener->log() invocation as a list remove callback
|
||||
*/
|
||||
static bool log_cb(entry_t *entry, log_data_t *data)
|
||||
{
|
||||
va_list args;
|
||||
|
||||
if (entry->calling || !entry->listener->log)
|
||||
{ /* avoid recursive calls */
|
||||
return FALSE;
|
||||
}
|
||||
entry->calling++;
|
||||
va_copy(args, data->args);
|
||||
if (!entry->listener->log(entry->listener, data->group, data->level,
|
||||
data->thread, data->ike_sa, data->format, args))
|
||||
{
|
||||
if (entry->blocker)
|
||||
{
|
||||
entry->blocker = FALSE;
|
||||
entry->condvar->signal(entry->condvar);
|
||||
}
|
||||
else
|
||||
{
|
||||
entry_destroy(entry);
|
||||
}
|
||||
va_end(args);
|
||||
entry->calling--;
|
||||
return TRUE;
|
||||
}
|
||||
va_end(args);
|
||||
entry->calling--;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.vlog.
|
||||
*/
|
||||
static void vlog(private_bus_t *this, debug_t group, level_t level,
|
||||
char* format, va_list args)
|
||||
{
|
||||
log_data_t data;
|
||||
|
||||
data.ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
data.thread = thread_current_id();
|
||||
data.group = group;
|
||||
data.level = level;
|
||||
data.format = format;
|
||||
va_copy(data.args, args);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
/* We use the remove() method to invoke all listeners. This is cheap and
|
||||
* does not require an allocation for this performance critical function. */
|
||||
this->listeners->remove(this->listeners, &data, (void*)log_cb);
|
||||
this->mutex->unlock(this->mutex);
|
||||
|
||||
va_end(data.args);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.log.
|
||||
*/
|
||||
static void log_(private_bus_t *this, debug_t group, level_t level,
|
||||
char* format, ...)
|
||||
{
|
||||
va_list args;
|
||||
|
||||
va_start(args, format);
|
||||
vlog(this, group, level, format, args);
|
||||
va_end(args);
|
||||
}
|
||||
|
||||
/**
|
||||
* unregister a listener
|
||||
*/
|
||||
static void unregister_listener(private_bus_t *this, entry_t *entry,
|
||||
enumerator_t *enumerator)
|
||||
{
|
||||
if (entry->blocker)
|
||||
{
|
||||
entry->blocker = FALSE;
|
||||
entry->condvar->signal(entry->condvar);
|
||||
}
|
||||
else
|
||||
{
|
||||
entry_destroy(entry);
|
||||
}
|
||||
this->listeners->remove_at(this->listeners, enumerator);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.alert
|
||||
*/
|
||||
static void alert(private_bus_t *this, alert_t alert, ...)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
va_list args;
|
||||
bool keep;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->alert)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
va_start(args, alert);
|
||||
keep = entry->listener->alert(entry->listener, ike_sa, alert, args);
|
||||
va_end(args);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.ike_state_change
|
||||
*/
|
||||
static void ike_state_change(private_bus_t *this, ike_sa_t *ike_sa,
|
||||
ike_sa_state_t state)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->ike_state_change)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->ike_state_change(entry->listener, ike_sa, state);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.child_state_change
|
||||
*/
|
||||
static void child_state_change(private_bus_t *this, child_sa_t *child_sa,
|
||||
child_sa_state_t state)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->child_state_change)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->child_state_change(entry->listener, ike_sa,
|
||||
child_sa, state);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.message
|
||||
*/
|
||||
static void message(private_bus_t *this, message_t *message, bool incoming)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->message)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->message(entry->listener, ike_sa,
|
||||
message, incoming);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.ike_keys
|
||||
*/
|
||||
static void ike_keys(private_bus_t *this, ike_sa_t *ike_sa,
|
||||
diffie_hellman_t *dh, chunk_t nonce_i, chunk_t nonce_r,
|
||||
ike_sa_t *rekey)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->ike_keys)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->ike_keys(entry->listener, ike_sa, dh,
|
||||
nonce_i, nonce_r, rekey);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.child_keys
|
||||
*/
|
||||
static void child_keys(private_bus_t *this, child_sa_t *child_sa,
|
||||
diffie_hellman_t *dh, chunk_t nonce_i, chunk_t nonce_r)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->child_keys)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->child_keys(entry->listener, ike_sa, child_sa,
|
||||
dh, nonce_i, nonce_r);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.child_updown
|
||||
*/
|
||||
static void child_updown(private_bus_t *this, child_sa_t *child_sa, bool up)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->child_updown)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->child_updown(entry->listener,
|
||||
ike_sa, child_sa, up);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.child_rekey
|
||||
*/
|
||||
static void child_rekey(private_bus_t *this, child_sa_t *old, child_sa_t *new)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->child_rekey)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->child_rekey(entry->listener, ike_sa, old, new);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.ike_updown
|
||||
*/
|
||||
static void ike_updown(private_bus_t *this, ike_sa_t *ike_sa, bool up)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->ike_updown)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->ike_updown(entry->listener, ike_sa, up);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
|
||||
/* a down event for IKE_SA implicitly downs all CHILD_SAs */
|
||||
if (!up)
|
||||
{
|
||||
iterator_t *iterator;
|
||||
child_sa_t *child_sa;
|
||||
|
||||
iterator = ike_sa->create_child_sa_iterator(ike_sa);
|
||||
while (iterator->iterate(iterator, (void**)&child_sa))
|
||||
{
|
||||
child_updown(this, child_sa, FALSE);
|
||||
}
|
||||
iterator->destroy(iterator);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.ike_rekey
|
||||
*/
|
||||
static void ike_rekey(private_bus_t *this, ike_sa_t *old, ike_sa_t *new)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
entry_t *entry;
|
||||
bool keep;
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->ike_rekey)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->ike_rekey(entry->listener, old, new);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.authorize
|
||||
*/
|
||||
static bool authorize(private_bus_t *this, bool final)
|
||||
{
|
||||
enumerator_t *enumerator;
|
||||
ike_sa_t *ike_sa;
|
||||
entry_t *entry;
|
||||
bool keep, success = TRUE;
|
||||
|
||||
ike_sa = this->thread_sa->get(this->thread_sa);
|
||||
|
||||
this->mutex->lock(this->mutex);
|
||||
enumerator = this->listeners->create_enumerator(this->listeners);
|
||||
while (enumerator->enumerate(enumerator, &entry))
|
||||
{
|
||||
if (entry->calling || !entry->listener->authorize)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
entry->calling++;
|
||||
keep = entry->listener->authorize(entry->listener, ike_sa,
|
||||
final, &success);
|
||||
entry->calling--;
|
||||
if (!keep)
|
||||
{
|
||||
unregister_listener(this, entry, enumerator);
|
||||
}
|
||||
if (!success)
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
this->mutex->unlock(this->mutex);
|
||||
return success;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of bus_t.destroy.
|
||||
*/
|
||||
static void destroy(private_bus_t *this)
|
||||
{
|
||||
this->thread_sa->destroy(this->thread_sa);
|
||||
this->mutex->destroy(this->mutex);
|
||||
this->listeners->destroy_function(this->listeners, (void*)entry_destroy);
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
bus_t *bus_create()
|
||||
{
|
||||
private_bus_t *this = malloc_thing(private_bus_t);
|
||||
|
||||
this->public.add_listener = (void(*)(bus_t*,listener_t*))add_listener;
|
||||
this->public.remove_listener = (void(*)(bus_t*,listener_t*))remove_listener;
|
||||
this->public.listen = (void(*)(bus_t*, listener_t *listener, job_t *job))listen_;
|
||||
this->public.set_sa = (void(*)(bus_t*,ike_sa_t*))set_sa;
|
||||
this->public.get_sa = (ike_sa_t*(*)(bus_t*))get_sa;
|
||||
this->public.log = (void(*)(bus_t*,debug_t,level_t,char*,...))log_;
|
||||
this->public.vlog = (void(*)(bus_t*,debug_t,level_t,char*,va_list))vlog;
|
||||
this->public.alert = (void(*)(bus_t*, alert_t alert, ...))alert;
|
||||
this->public.ike_state_change = (void(*)(bus_t*,ike_sa_t*,ike_sa_state_t))ike_state_change;
|
||||
this->public.child_state_change = (void(*)(bus_t*,child_sa_t*,child_sa_state_t))child_state_change;
|
||||
this->public.message = (void(*)(bus_t*, message_t *message, bool incoming))message;
|
||||
this->public.ike_keys = (void(*)(bus_t*, ike_sa_t *ike_sa, diffie_hellman_t *dh, chunk_t nonce_i, chunk_t nonce_r, ike_sa_t *rekey))ike_keys;
|
||||
this->public.child_keys = (void(*)(bus_t*, child_sa_t *child_sa, diffie_hellman_t *dh, chunk_t nonce_i, chunk_t nonce_r))child_keys;
|
||||
this->public.ike_updown = (void(*)(bus_t*, ike_sa_t *ike_sa, bool up))ike_updown;
|
||||
this->public.ike_rekey = (void(*)(bus_t*, ike_sa_t *old, ike_sa_t *new))ike_rekey;
|
||||
this->public.child_updown = (void(*)(bus_t*, child_sa_t *child_sa, bool up))child_updown;
|
||||
this->public.child_rekey = (void(*)(bus_t*, child_sa_t *old, child_sa_t *new))child_rekey;
|
||||
this->public.authorize = (bool(*)(bus_t*, bool final))authorize;
|
||||
this->public.destroy = (void(*)(bus_t*)) destroy;
|
||||
|
||||
this->listeners = linked_list_create();
|
||||
this->mutex = mutex_create(MUTEX_TYPE_RECURSIVE);
|
||||
this->thread_sa = thread_value_create(NULL);
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,338 @@
|
||||
/*
|
||||
* Copyright (C) 2006-2009 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup bus bus
|
||||
* @{ @ingroup charon
|
||||
*/
|
||||
|
||||
#ifndef BUS_H_
|
||||
#define BUS_H_
|
||||
|
||||
typedef enum debug_t debug_t;
|
||||
typedef enum level_t level_t;
|
||||
typedef enum alert_t alert_t;
|
||||
typedef struct bus_t bus_t;
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
#include <sa/ike_sa.h>
|
||||
#include <sa/child_sa.h>
|
||||
#include <processing/jobs/job.h>
|
||||
#include <bus/listeners/listener.h>
|
||||
|
||||
/**
|
||||
* Debug message group.
|
||||
*/
|
||||
enum debug_t {
|
||||
/** daemon main loop */
|
||||
DBG_DMN,
|
||||
/** IKE_SA_MANAGER */
|
||||
DBG_MGR,
|
||||
/** IKE_SA */
|
||||
DBG_IKE,
|
||||
/** CHILD_SA */
|
||||
DBG_CHD,
|
||||
/** job processing */
|
||||
DBG_JOB,
|
||||
/** configuration backends */
|
||||
DBG_CFG,
|
||||
/** kernel interface */
|
||||
DBG_KNL,
|
||||
/** networking/sockets */
|
||||
DBG_NET,
|
||||
/** message encoding/decoding */
|
||||
DBG_ENC,
|
||||
/** libstrongswan via logging hook */
|
||||
DBG_LIB,
|
||||
/** number of groups */
|
||||
DBG_MAX,
|
||||
/** pseudo group with all groups */
|
||||
DBG_ANY = DBG_MAX,
|
||||
};
|
||||
|
||||
/**
|
||||
* short names of debug message group.
|
||||
*/
|
||||
extern enum_name_t *debug_names;
|
||||
|
||||
/**
|
||||
* short names of debug message group, lower case.
|
||||
*/
|
||||
extern enum_name_t *debug_lower_names;
|
||||
|
||||
/**
|
||||
* Debug levels used to control output verbosity.
|
||||
*/
|
||||
enum level_t {
|
||||
/** absolutely silent */
|
||||
LEVEL_SILENT = -1,
|
||||
/** most important auditing logs */
|
||||
LEVEL_AUDIT = 0,
|
||||
/** control flow */
|
||||
LEVEL_CTRL = 1,
|
||||
/** diagnose problems */
|
||||
LEVEL_DIAG = 2,
|
||||
/** raw binary blobs */
|
||||
LEVEL_RAW = 3,
|
||||
/** including sensitive data (private keys) */
|
||||
LEVEL_PRIVATE = 4,
|
||||
};
|
||||
|
||||
#ifndef DEBUG_LEVEL
|
||||
# define DEBUG_LEVEL 4
|
||||
#endif /* DEBUG_LEVEL */
|
||||
|
||||
#if DEBUG_LEVEL >= 0
|
||||
#define DBG0(group, format, ...) charon->bus->log(charon->bus, group, 0, format, ##__VA_ARGS__)
|
||||
#endif /* DEBUG_LEVEL >= 0 */
|
||||
#if DEBUG_LEVEL >= 1
|
||||
#define DBG1(group, format, ...) charon->bus->log(charon->bus, group, 1, format, ##__VA_ARGS__)
|
||||
#endif /* DEBUG_LEVEL >= 1 */
|
||||
#if DEBUG_LEVEL >= 2
|
||||
#define DBG2(group, format, ...) charon->bus->log(charon->bus, group, 2, format, ##__VA_ARGS__)
|
||||
#endif /* DEBUG_LEVEL >= 2 */
|
||||
#if DEBUG_LEVEL >= 3
|
||||
#define DBG3(group, format, ...) charon->bus->log(charon->bus, group, 3, format, ##__VA_ARGS__)
|
||||
#endif /* DEBUG_LEVEL >= 3 */
|
||||
#if DEBUG_LEVEL >= 4
|
||||
#define DBG4(group, format, ...) charon->bus->log(charon->bus, group, 4, format, ##__VA_ARGS__)
|
||||
#endif /* DEBUG_LEVEL >= 4 */
|
||||
|
||||
#ifndef DBG0
|
||||
# define DBG0(...) {}
|
||||
#endif /* DBG0 */
|
||||
#ifndef DBG1
|
||||
# define DBG1(...) {}
|
||||
#endif /* DBG1 */
|
||||
#ifndef DBG2
|
||||
# define DBG2(...) {}
|
||||
#endif /* DBG2 */
|
||||
#ifndef DBG3
|
||||
# define DBG3(...) {}
|
||||
#endif /* DBG3 */
|
||||
#ifndef DBG4
|
||||
# define DBG4(...) {}
|
||||
#endif /* DBG4 */
|
||||
|
||||
/**
|
||||
* Kind of alerts to raise.
|
||||
*/
|
||||
enum alert_t {
|
||||
/* a RADIUS server did not respond, no additional arguments */
|
||||
ALERT_RADIUS_NOT_RESPONDING,
|
||||
/* a shutdown signal has been received, argument is a int with the signal */
|
||||
ALERT_SHUTDOWN_SIGNAL,
|
||||
};
|
||||
|
||||
/**
|
||||
* The bus receives events and sends them to all registered listeners.
|
||||
*
|
||||
* Any events sent to are delivered to all registered listeners. Threads
|
||||
* may wait actively to events using the blocking listen() call.
|
||||
*/
|
||||
struct bus_t {
|
||||
|
||||
/**
|
||||
* Register a listener to the bus.
|
||||
*
|
||||
* A registered listener receives all events which are sent to the bus.
|
||||
* The listener is passive; the thread which emitted the event
|
||||
* processes the listener routine.
|
||||
*
|
||||
* @param listener listener to register.
|
||||
*/
|
||||
void (*add_listener) (bus_t *this, listener_t *listener);
|
||||
|
||||
/**
|
||||
* Unregister a listener from the bus.
|
||||
*
|
||||
* @param listener listener to unregister.
|
||||
*/
|
||||
void (*remove_listener) (bus_t *this, listener_t *listener);
|
||||
|
||||
/**
|
||||
* Register a listener and block the calling thread.
|
||||
*
|
||||
* This call registers a listener and blocks the calling thread until
|
||||
* its listeners function returns FALSE. This allows to wait for certain
|
||||
* events. The associated job is executed after the listener has been
|
||||
* registered: This allows to listen on events we initiate with the job,
|
||||
* without missing any events to job may fire.
|
||||
*
|
||||
* @param listener listener to register
|
||||
* @param job job to execute asynchronously when registered, or NULL
|
||||
*/
|
||||
void (*listen)(bus_t *this, listener_t *listener, job_t *job);
|
||||
|
||||
/**
|
||||
* Set the IKE_SA the calling thread is using.
|
||||
*
|
||||
* To associate an received log message to an IKE_SA without passing it as
|
||||
* parameter each time, the thread registers the currenlty used IKE_SA
|
||||
* during check-out. Before check-in, the thread unregisters the IKE_SA.
|
||||
* This IKE_SA is stored per-thread, so each thread has its own IKE_SA
|
||||
* registered.
|
||||
*
|
||||
* @param ike_sa ike_sa to register, or NULL to unregister
|
||||
*/
|
||||
void (*set_sa) (bus_t *this, ike_sa_t *ike_sa);
|
||||
|
||||
/**
|
||||
* Get the IKE_SA the calling thread is currently using.
|
||||
*
|
||||
* If a thread currently does not know what IKE_SA it is processing,
|
||||
* it can call get_sa() to look up the SA set during checkout via set_sa().
|
||||
*
|
||||
* @return registered ike_sa, NULL if none registered
|
||||
*/
|
||||
ike_sa_t* (*get_sa)(bus_t *this);
|
||||
|
||||
/**
|
||||
* Send a log message to the bus.
|
||||
*
|
||||
* The signal specifies the type of the event occured. The format string
|
||||
* specifies an additional informational or error message with a
|
||||
* printf() like variable argument list.
|
||||
* Use the DBG() macros.
|
||||
*
|
||||
* @param group debugging group
|
||||
* @param level verbosity level of the signal
|
||||
* @param format printf() style format string
|
||||
* @param ... printf() style argument list
|
||||
*/
|
||||
void (*log)(bus_t *this, debug_t group, level_t level, char* format, ...);
|
||||
|
||||
/**
|
||||
* Send a log message to the bus using va_list arguments.
|
||||
*
|
||||
* Same as bus_t.signal(), but uses va_list argument list.
|
||||
*
|
||||
* @param group kind of the signal (up, down, rekeyed, ...)
|
||||
* @param level verbosity level of the signal
|
||||
* @param format printf() style format string
|
||||
* @param args va_list arguments
|
||||
*/
|
||||
void (*vlog)(bus_t *this, debug_t group, level_t level,
|
||||
char* format, va_list args);
|
||||
|
||||
/**
|
||||
* Raise an alert over the bus.
|
||||
*
|
||||
* @param alert kind of alert
|
||||
* @param ... alert specific attributes
|
||||
*/
|
||||
void (*alert)(bus_t *this, alert_t alert, ...);
|
||||
|
||||
/**
|
||||
* Send a IKE_SA state change event to the bus.
|
||||
*
|
||||
* @param ike_sa IKE_SA which changes its state
|
||||
* @param state new state IKE_SA changes to
|
||||
*/
|
||||
void (*ike_state_change)(bus_t *this, ike_sa_t *ike_sa,
|
||||
ike_sa_state_t state);
|
||||
/**
|
||||
* Send a CHILD_SA state change event to the bus.
|
||||
*
|
||||
* @param child_sa CHILD_SA which changes its state
|
||||
* @param state new state CHILD_SA changes to
|
||||
*/
|
||||
void (*child_state_change)(bus_t *this, child_sa_t *child_sa,
|
||||
child_sa_state_t state);
|
||||
/**
|
||||
* Message send/receive hook.
|
||||
*
|
||||
* @param message message to send/receive
|
||||
* @param incoming TRUE for incoming messages, FALSE for outgoing
|
||||
*/
|
||||
void (*message)(bus_t *this, message_t *message, bool incoming);
|
||||
|
||||
/**
|
||||
* IKE_SA authorization hook.
|
||||
*
|
||||
* @param final TRUE if this is the final invocation
|
||||
* @return TRUE to establish IKE_SA, FALSE to send AUTH_FAILED
|
||||
*/
|
||||
bool (*authorize)(bus_t *this, bool final);
|
||||
|
||||
/**
|
||||
* IKE_SA keymat hook.
|
||||
*
|
||||
* @param ike_sa IKE_SA this keymat belongs to
|
||||
* @param dh diffie hellman shared secret
|
||||
* @param nonce_i initiators nonce
|
||||
* @param nonce_r responders nonce
|
||||
* @param rekey IKE_SA we are rekeying, if any
|
||||
*/
|
||||
void (*ike_keys)(bus_t *this, ike_sa_t *ike_sa, diffie_hellman_t *dh,
|
||||
chunk_t nonce_i, chunk_t nonce_r, ike_sa_t *rekey);
|
||||
/**
|
||||
* CHILD_SA keymat hook.
|
||||
*
|
||||
* @param child_sa CHILD_SA this keymat is used for
|
||||
* @param dh diffie hellman shared secret
|
||||
* @param nonce_i initiators nonce
|
||||
* @param nonce_r responders nonce
|
||||
*/
|
||||
void (*child_keys)(bus_t *this, child_sa_t *child_sa, diffie_hellman_t *dh,
|
||||
chunk_t nonce_i, chunk_t nonce_r);
|
||||
|
||||
/**
|
||||
* IKE_SA up/down hook.
|
||||
*
|
||||
* @param ike_sa IKE_SA coming up/going down
|
||||
* @param up TRUE for an up event, FALSE for a down event
|
||||
*/
|
||||
void (*ike_updown)(bus_t *this, ike_sa_t *ike_sa, bool up);
|
||||
|
||||
/**
|
||||
* IKE_SA rekeying hook.
|
||||
*
|
||||
* @param old rekeyed and obsolete IKE_SA
|
||||
* @param new new IKE_SA replacing old
|
||||
*/
|
||||
void (*ike_rekey)(bus_t *this, ike_sa_t *old, ike_sa_t *new);
|
||||
|
||||
/**
|
||||
* CHILD_SA up/down hook.
|
||||
*
|
||||
* @param child_sa CHILD_SA coming up/going down
|
||||
* @param up TRUE for an up event, FALSE for a down event
|
||||
*/
|
||||
void (*child_updown)(bus_t *this, child_sa_t *child_sa, bool up);
|
||||
|
||||
/**
|
||||
* CHILD_SA rekeying hook.
|
||||
*
|
||||
* @param old rekeyed and obsolete CHILD_SA
|
||||
* @param new new CHILD_SA replacing old
|
||||
*/
|
||||
void (*child_rekey)(bus_t *this, child_sa_t *old, child_sa_t *new);
|
||||
|
||||
/**
|
||||
* Destroy the event bus.
|
||||
*/
|
||||
void (*destroy) (bus_t *this);
|
||||
};
|
||||
|
||||
/**
|
||||
* Create the event bus which forwards events to its listeners.
|
||||
*
|
||||
* @return event bus instance
|
||||
*/
|
||||
bus_t *bus_create();
|
||||
|
||||
#endif /** BUS_H_ @}*/
|
||||
@@ -0,0 +1,125 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "file_logger.h"
|
||||
|
||||
|
||||
typedef struct private_file_logger_t private_file_logger_t;
|
||||
|
||||
/**
|
||||
* Private data of a file_logger_t object
|
||||
*/
|
||||
struct private_file_logger_t {
|
||||
|
||||
/**
|
||||
* Public data.
|
||||
*/
|
||||
file_logger_t public;
|
||||
|
||||
/**
|
||||
* output file
|
||||
*/
|
||||
FILE *out;
|
||||
|
||||
/**
|
||||
* Maximum level to log, for each group
|
||||
*/
|
||||
level_t levels[DBG_MAX];
|
||||
};
|
||||
|
||||
/**
|
||||
* Implementation of bus_listener_t.log.
|
||||
*/
|
||||
static bool log_(private_file_logger_t *this, debug_t group, level_t level,
|
||||
int thread, ike_sa_t* ike_sa, char *format, va_list args)
|
||||
{
|
||||
if (level <= this->levels[group])
|
||||
{
|
||||
char buffer[8192];
|
||||
char *current = buffer, *next;
|
||||
|
||||
/* write in memory buffer first */
|
||||
vsnprintf(buffer, sizeof(buffer), format, args);
|
||||
|
||||
/* prepend a prefix in front of every line */
|
||||
while (current)
|
||||
{
|
||||
next = strchr(current, '\n');
|
||||
if (next)
|
||||
{
|
||||
*(next++) = '\0';
|
||||
}
|
||||
fprintf(this->out, "%.2d[%N] %s\n",
|
||||
thread, debug_names, group, current);
|
||||
current = next;
|
||||
}
|
||||
}
|
||||
/* always stay registered */
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of file_logger_t.set_level.
|
||||
*/
|
||||
static void set_level(private_file_logger_t *this, debug_t group, level_t level)
|
||||
{
|
||||
if (group < DBG_ANY)
|
||||
{
|
||||
this->levels[group] = level;
|
||||
}
|
||||
else
|
||||
{
|
||||
for (group = 0; group < DBG_MAX; group++)
|
||||
{
|
||||
this->levels[group] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of file_logger_t.destroy.
|
||||
*/
|
||||
static void destroy(private_file_logger_t *this)
|
||||
{
|
||||
if (this->out != stdout && this->out != stderr)
|
||||
{
|
||||
fclose(this->out);
|
||||
}
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
file_logger_t *file_logger_create(FILE *out)
|
||||
{
|
||||
private_file_logger_t *this = malloc_thing(private_file_logger_t);
|
||||
|
||||
/* public functions */
|
||||
memset(&this->public.listener, 0, sizeof(listener_t));
|
||||
this->public.listener.log = (bool(*)(listener_t*,debug_t,level_t,int,ike_sa_t*,char*,va_list))log_;
|
||||
this->public.set_level = (void(*)(file_logger_t*,debug_t,level_t))set_level;
|
||||
this->public.destroy = (void(*)(file_logger_t*))destroy;
|
||||
|
||||
/* private variables */
|
||||
this->out = out;
|
||||
set_level(this, DBG_ANY, LEVEL_SILENT);
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,60 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup file_logger file_logger
|
||||
* @{ @ingroup listeners
|
||||
*/
|
||||
|
||||
#ifndef FILE_LOGGER_H_
|
||||
#define FILE_LOGGER_H_
|
||||
|
||||
#include <bus/listeners/listener.h>
|
||||
|
||||
typedef struct file_logger_t file_logger_t;
|
||||
|
||||
/**
|
||||
* Logger to files which implements listener_t.
|
||||
*/
|
||||
struct file_logger_t {
|
||||
|
||||
/**
|
||||
* Implements the listener_t interface.
|
||||
*/
|
||||
listener_t listener;
|
||||
|
||||
/**
|
||||
* Set the loglevel for a debug group.
|
||||
*
|
||||
* @param group debug group to set
|
||||
* @param level max level to log (0..4)
|
||||
*/
|
||||
void (*set_level) (file_logger_t *this, debug_t group, level_t level);
|
||||
|
||||
/**
|
||||
* Destroys a file_logger_t object.
|
||||
*/
|
||||
void (*destroy) (file_logger_t *this);
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor to create a file_logger_t object.
|
||||
*
|
||||
* @param out FILE to write to
|
||||
* @return file_logger_t object
|
||||
*/
|
||||
file_logger_t *file_logger_create(FILE *out);
|
||||
|
||||
#endif /** FILE_LOGGER_H_ @}*/
|
||||
@@ -0,0 +1,178 @@
|
||||
/*
|
||||
* Copyright (C) 2009 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup listener listener
|
||||
* @{ @ingroup listeners
|
||||
*/
|
||||
|
||||
#ifndef LISTENER_H_
|
||||
#define LISTENER_H_
|
||||
|
||||
typedef struct listener_t listener_t;
|
||||
|
||||
#include <bus/bus.h>
|
||||
|
||||
/**
|
||||
* Listener interface, listens to events if registered to the bus.
|
||||
*/
|
||||
struct listener_t {
|
||||
|
||||
/**
|
||||
* Log a debugging message.
|
||||
*
|
||||
* The implementing signal function returns TRUE to stay registered
|
||||
* to the bus, or FALSE to unregister itself.
|
||||
* Calling bus_t.log() inside of a registered listener is possible,
|
||||
* but the bus does not invoke listeners recursively.
|
||||
*
|
||||
* @param group kind of the signal (up, down, rekeyed, ...)
|
||||
* @param level verbosity level of the signal
|
||||
* @param thread ID of the thread raised this signal
|
||||
* @param ike_sa IKE_SA associated to the event
|
||||
* @param format printf() style format string
|
||||
* @param args vprintf() style va_list argument list
|
||||
" @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*log)(listener_t *this, debug_t group, level_t level, int thread,
|
||||
ike_sa_t *ike_sa, char* format, va_list args);
|
||||
|
||||
/**
|
||||
* Hook called if a critical alert is risen.
|
||||
*
|
||||
* @param ike_sa IKE_SA associated to the alert, if any
|
||||
* @param alert kind of alert
|
||||
* @param ... alert specific argument list
|
||||
" @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*alert)(listener_t *this, ike_sa_t *ike_sa,
|
||||
alert_t alert, va_list args);
|
||||
|
||||
/**
|
||||
* Handle state changes in an IKE_SA.
|
||||
*
|
||||
* @param ike_sa IKE_SA which changes its state
|
||||
* @param state new IKE_SA state this IKE_SA changes to
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*ike_state_change)(listener_t *this, ike_sa_t *ike_sa,
|
||||
ike_sa_state_t state);
|
||||
|
||||
/**
|
||||
* Handle state changes in a CHILD_SA.
|
||||
*
|
||||
* @param ike_sa IKE_SA containing the affected CHILD_SA
|
||||
* @param child_sa CHILD_SA which changes its state
|
||||
* @param state new CHILD_SA state this CHILD_SA changes to
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*child_state_change)(listener_t *this, ike_sa_t *ike_sa,
|
||||
child_sa_t *child_sa, child_sa_state_t state);
|
||||
|
||||
/**
|
||||
* Hook called for received/sent messages of an IKE_SA.
|
||||
*
|
||||
* @param ike_sa IKE_SA sending/receving a message
|
||||
* @param message message object
|
||||
* @param incoming TRUE for incoming messages, FALSE for outgoing
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*message)(listener_t *this, ike_sa_t *ike_sa, message_t *message,
|
||||
bool incoming);
|
||||
|
||||
/**
|
||||
* Hook called with IKE_SA key material.
|
||||
*
|
||||
* @param ike_sa IKE_SA this keymat belongs to
|
||||
* @param dh diffie hellman shared secret
|
||||
* @param nonce_i initiators nonce
|
||||
* @param nonce_r responders nonce
|
||||
* @param rekey IKE_SA we are rekeying, if any
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*ike_keys)(listener_t *this, ike_sa_t *ike_sa, diffie_hellman_t *dh,
|
||||
chunk_t nonce_i, chunk_t nonce_r, ike_sa_t *rekey);
|
||||
|
||||
/**
|
||||
* Hook called with CHILD_SA key material.
|
||||
*
|
||||
* @param ike_sa IKE_SA the child sa belongs to
|
||||
* @param child_sa CHILD_SA this keymat is used for
|
||||
* @param dh diffie hellman shared secret
|
||||
* @param nonce_i initiators nonce
|
||||
* @param nonce_r responders nonce
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*child_keys)(listener_t *this, ike_sa_t *ike_sa, child_sa_t *child_sa,
|
||||
diffie_hellman_t *dh, chunk_t nonce_i, chunk_t nonce_r);
|
||||
|
||||
/**
|
||||
* Hook called if an IKE_SA gets up or down.
|
||||
*
|
||||
* @param ike_sa IKE_SA coming up/going down
|
||||
* @param up TRUE for an up event, FALSE for a down event
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*ike_updown)(listener_t *this, ike_sa_t *ike_sa, bool up);
|
||||
|
||||
/**
|
||||
* Hook called when an IKE_SA gets rekeyed.
|
||||
*
|
||||
* @param old rekeyed IKE_SA getting obsolete
|
||||
* @param new new IKE_SA replacing old
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*ike_rekey)(listener_t *this, ike_sa_t *old, ike_sa_t *new);
|
||||
|
||||
/**
|
||||
* Hook called when a CHILD_SA gets up or down.
|
||||
*
|
||||
* @param ike_sa IKE_SA containing the handled CHILD_SA
|
||||
* @param child_sa CHILD_SA coming up/going down
|
||||
* @param up TRUE for an up event, FALSE for a down event
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*child_updown)(listener_t *this, ike_sa_t *ike_sa,
|
||||
child_sa_t *child_sa, bool up);
|
||||
|
||||
/**
|
||||
* Hook called when an CHILD_SA gets rekeyed.
|
||||
*
|
||||
* @param ike_sa IKE_SA containing the rekeyed CHILD_SA
|
||||
* @param old rekeyed CHILD_SA getting obsolete
|
||||
* @param new new CHILD_SA replacing old
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*child_rekey)(listener_t *this, ike_sa_t *ike_sa,
|
||||
child_sa_t *old, child_sa_t *new);
|
||||
|
||||
/**
|
||||
* Hook called to invoke additional authorization rules.
|
||||
*
|
||||
* An authorization hook gets invoked several times: After each
|
||||
* authentication round, the hook gets invoked with with final = FALSE.
|
||||
* After authentication is complete and the peer configuration is selected,
|
||||
* it is invoked again, but with final = TRUE.
|
||||
*
|
||||
* @param ike_sa IKE_SA to authorize
|
||||
* @param final TRUE if this is the final hook invocation
|
||||
* @param success set to TRUE to complete IKE_SA, FALSE abort
|
||||
* @return TRUE to stay registered, FALSE to unregister
|
||||
*/
|
||||
bool (*authorize)(listener_t *this, ike_sa_t *ike_sa,
|
||||
bool final, bool *success);
|
||||
};
|
||||
|
||||
#endif /** LISTENER_H_ @}*/
|
||||
@@ -0,0 +1,121 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "sys_logger.h"
|
||||
|
||||
|
||||
typedef struct private_sys_logger_t private_sys_logger_t;
|
||||
|
||||
/**
|
||||
* Private data of a sys_logger_t object
|
||||
*/
|
||||
struct private_sys_logger_t {
|
||||
|
||||
/**
|
||||
* Public data.
|
||||
*/
|
||||
sys_logger_t public;
|
||||
|
||||
/**
|
||||
* syslog facility to use
|
||||
*/
|
||||
int facility;
|
||||
|
||||
/**
|
||||
* Maximum level to log, for each group
|
||||
*/
|
||||
level_t levels[DBG_MAX];
|
||||
};
|
||||
|
||||
/**
|
||||
* Implementation of listener_t.log.
|
||||
*/
|
||||
static bool log_(private_sys_logger_t *this, debug_t group, level_t level,
|
||||
int thread, ike_sa_t* ike_sa, char *format, va_list args)
|
||||
{
|
||||
if (level <= this->levels[group])
|
||||
{
|
||||
char buffer[8192];
|
||||
char *current = buffer, *next;
|
||||
|
||||
/* write in memory buffer first */
|
||||
vsnprintf(buffer, sizeof(buffer), format, args);
|
||||
|
||||
/* do a syslog with every line */
|
||||
while (current)
|
||||
{
|
||||
next = strchr(current, '\n');
|
||||
if (next)
|
||||
{
|
||||
*(next++) = '\0';
|
||||
}
|
||||
syslog(this->facility|LOG_INFO, "%.2d[%N] %s\n",
|
||||
thread, debug_names, group, current);
|
||||
current = next;
|
||||
}
|
||||
}
|
||||
/* always stay registered */
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of sys_logger_t.set_level.
|
||||
*/
|
||||
static void set_level(private_sys_logger_t *this, debug_t group, level_t level)
|
||||
{
|
||||
if (group < DBG_ANY)
|
||||
{
|
||||
this->levels[group] = level;
|
||||
}
|
||||
else
|
||||
{
|
||||
for (group = 0; group < DBG_MAX; group++)
|
||||
{
|
||||
this->levels[group] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of sys_logger_t.destroy.
|
||||
*/
|
||||
static void destroy(private_sys_logger_t *this)
|
||||
{
|
||||
closelog();
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
sys_logger_t *sys_logger_create(int facility)
|
||||
{
|
||||
private_sys_logger_t *this = malloc_thing(private_sys_logger_t);
|
||||
|
||||
/* public functions */
|
||||
memset(&this->public.listener, 0, sizeof(listener_t));
|
||||
this->public.listener.log = (bool(*)(listener_t*,debug_t,level_t,int,ike_sa_t*,char*,va_list))log_;
|
||||
this->public.set_level = (void(*)(sys_logger_t*,debug_t,level_t))set_level;
|
||||
this->public.destroy = (void(*)(sys_logger_t*))destroy;
|
||||
|
||||
/* private variables */
|
||||
this->facility = facility;
|
||||
set_level(this, DBG_ANY, LEVEL_SILENT);
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
@@ -0,0 +1,62 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup sys_logger sys_logger
|
||||
* @{ @ingroup listeners
|
||||
*/
|
||||
|
||||
#ifndef SYS_LOGGER_H_
|
||||
#define SYS_LOGGER_H_
|
||||
|
||||
#include <syslog.h>
|
||||
|
||||
#include <bus/listeners/listener.h>
|
||||
|
||||
typedef struct sys_logger_t sys_logger_t;
|
||||
|
||||
/**
|
||||
* Logger for syslog which implements listener_t.
|
||||
*/
|
||||
struct sys_logger_t {
|
||||
|
||||
/**
|
||||
* Implements the listener_t interface.
|
||||
*/
|
||||
listener_t listener;
|
||||
|
||||
/**
|
||||
* Set the loglevel for a debug group.
|
||||
*
|
||||
* @param group debug group to set
|
||||
* @param level max level to log (0..4)
|
||||
*/
|
||||
void (*set_level) (sys_logger_t *this, debug_t group, level_t level);
|
||||
|
||||
/**
|
||||
* Destroys a sys_logger_t object.
|
||||
*/
|
||||
void (*destroy) (sys_logger_t *this);
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor to create a sys_logger_t object.
|
||||
*
|
||||
* @param facility syslog facility to use
|
||||
* @return sys_logger_t object
|
||||
*/
|
||||
sys_logger_t *sys_logger_create(int facility);
|
||||
|
||||
#endif /** SYS_LOGGER_H_ @}*/
|
||||
Reference in New Issue
Block a user