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-rw-r--r--src/charon/bus/bus.c753
1 files changed, 0 insertions, 753 deletions
diff --git a/src/charon/bus/bus.c b/src/charon/bus/bus.c
deleted file mode 100644
index 524a77682..000000000
--- a/src/charon/bus/bus.c
+++ /dev/null
@@ -1,753 +0,0 @@
-/*
- * 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;
-}
-
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