first simple prototype of a UCI configuration plugin for OpenWRT

1 files changed, 170 insertions, 0 deletions

diff --git a/src/charon/plugins/uci/uci_creds.c b/src/charon/plugins/uci/uci_creds.c
new file mode 100644
index 000000000..f55980cfa
--- /dev/null
+++ b/src/charon/plugins/uci/uci_creds.c
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2008 Thomas Kallenberg
+ * Copyright (C) 2008 Martin Willi
+ * Copyright (C) 2008 Tobias Brunner
+ * 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.
+ *
+ * $Id$
+ */
+
+#include "uci_creds.h"
+
+#include <daemon.h>
+#include <credentials/keys/shared_key.h>
+#include <utils/identification.h>
+
+typedef struct private_uci_creds_t private_uci_creds_t;
+
+/**
+ * Private data of an uci_creds_t object
+ */
+struct private_uci_creds_t {
+	/**
+	 * Public part
+	 */
+	uci_creds_t public;
+	
+	/**
+	 * UCI parser context
+	 */
+	uci_parser_t *parser;
+};
+
+typedef struct {
+	/** implements enumerator */
+	enumerator_t public;
+	/** inneer UCI enumerator */
+	enumerator_t *inner;
+	/** currently enumerated shared shared */
+	shared_key_t *current;
+	/** local ID to match */
+	identification_t *me;
+	/** remote ID to match */
+	identification_t *other;
+} shared_enumerator_t;
+
+/**
+ * Implementation of shared_enumerator_t.public.enumerate
+ */
+static bool shared_enumerator_enumerate(shared_enumerator_t *this,
+						shared_key_t **key, id_match_t *me, id_match_t *other)
+{
+	char *local_id, *psk;
+	identification_t *local;
+
+	while (TRUE)
+	{
+		/* defaults */
+		local_id = "%any";
+		psk = NULL;
+		
+		if (!this->inner->enumerate(this->inner, NULL, &local_id, &psk))
+		{
+			return FALSE;
+		}
+		if (psk == NULL)
+		{
+			continue;
+		}
+		if (me)
+		{
+			local = identification_create_from_string(local_id);
+			if (!local)
+			{
+				continue;
+			}
+			*me = this->me ? this->me->matches(this->me, local) : ID_MATCH_ANY;
+			local->destroy(local);
+			if (!*me)
+			{
+				continue;
+			}
+		}
+		break;
+	}
+	DESTROY_IF(this->current);
+	this->current = shared_key_create(SHARED_IKE,
+								chunk_clone(chunk_create(psk, strlen(psk))));
+	*key = this->current;
+	if (other)
+	{
+		*other = ID_MATCH_ANY;
+	}
+	return TRUE;
+}
+
+/**
+ * Implementation of shared_enumerator_t.public.destroy
+ */
+static void shared_enumerator_destroy(shared_enumerator_t *this)
+{
+	this->inner->destroy(this->inner);
+	DESTROY_IF(this->current);
+	free(this);
+}
+
+/**
+ * Implementation of backend_t.create_shared_cfg_enumerator.
+ */
+static enumerator_t* create_shared_enumerator(private_uci_creds_t *this,
+											  shared_key_type_t type,
+											  identification_t *me, 
+											  identification_t *other)
+{
+	shared_enumerator_t *e;
+	
+	if (type != SHARED_IKE)
+	{
+		return NULL;
+	}
+	
+	e = malloc_thing(shared_enumerator_t);
+	e->current = NULL;
+	e->public.enumerate = (void*)shared_enumerator_enumerate;
+	e->public.destroy = (void*)shared_enumerator_destroy;
+	e->me = me;
+	e->other = other;
+	e->inner = this->parser->create_section_enumerator(this->parser, 
+											"local_id", "psk", NULL);
+	if (!e->inner)
+	{
+		free(e);
+		return NULL;
+	}
+	return &e->public;
+}
+
+/**
+ * Implementation of uci_creds_t.destroy
+ */
+static void destroy(private_uci_creds_t *this)
+{
+	free(this);
+}
+
+uci_creds_t *uci_creds_create(uci_parser_t *parser)
+{
+	private_uci_creds_t *this = malloc_thing(private_uci_creds_t);
+
+	this->public.credential_set.create_shared_enumerator = (enumerator_t*(*)(credential_set_t*, shared_key_type_t, identification_t*, identification_t*))create_shared_enumerator;
+	this->public.credential_set.create_private_enumerator = (enumerator_t*(*) (credential_set_t*, key_type_t, identification_t*))return_null;
+	this->public.credential_set.create_cert_enumerator = (enumerator_t*(*) (credential_set_t*,	certificate_type_t, key_type_t,identification_t *, bool))return_null;
+	this->public.credential_set.create_cdp_enumerator  = (enumerator_t*(*) (credential_set_t *,certificate_type_t, identification_t *))return_null;
+	this->public.credential_set.cache_cert = (void (*)(credential_set_t *, certificate_t *))nop;
+	this->public.destroy = (void(*) (uci_creds_t*))destroy;
+	
+	this->parser = parser;
+
+	return &this->public;
+}
+