New upstream release.

1 files changed, 243 insertions, 0 deletions

diff --git a/src/libcharon/plugins/medcli/medcli_creds.c b/src/libcharon/plugins/medcli/medcli_creds.c
new file mode 100644
index 000000000..9729df3f5
--- /dev/null
+++ b/src/libcharon/plugins/medcli/medcli_creds.c
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2008 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 "medcli_creds.h"
+
+#include <daemon.h>
+#include <library.h>
+#include <utils/enumerator.h>
+
+typedef struct private_medcli_creds_t private_medcli_creds_t;
+
+/**
+ * Private data of an medcli_creds_t object
+ */
+struct private_medcli_creds_t {
+
+	/**
+	 * Public part
+	 */
+	medcli_creds_t public;
+
+	/**
+	 * underlying database handle
+	 */
+	database_t *db;
+};
+
+/**
+ * enumerator over private keys
+ */
+typedef struct {
+	/** implements enumerator */
+	enumerator_t public;
+	/** inner SQL enumerator */
+	enumerator_t *inner;
+	/** currently enumerated private key */
+	private_key_t *current;
+} private_enumerator_t;
+
+/**
+ * Implementation of private_enumerator_t.public.enumerate
+ */
+static bool private_enumerator_enumerate(private_enumerator_t *this,
+										 private_key_t **key)
+{
+	chunk_t chunk;
+
+	DESTROY_IF(this->current);
+	while (this->inner->enumerate(this->inner, &chunk))
+	{
+		this->current = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
+										   BUILD_BLOB_ASN1_DER, chunk,
+										   BUILD_END);
+		if (this->current)
+		{
+			*key = this->current;
+			return TRUE;
+		}
+	}
+	this->current = NULL;
+	return FALSE;
+}
+
+/**
+ * Implementation of private_enumerator_t.public.destroy
+ */
+static void private_enumerator_destroy(private_enumerator_t *this)
+{
+	DESTROY_IF(this->current);
+	this->inner->destroy(this->inner);
+	free(this);
+}
+
+/**
+ * Implementation of credential_set_t.create_private_enumerator.
+ */
+static enumerator_t* create_private_enumerator(private_medcli_creds_t *this,
+										key_type_t type, identification_t *id)
+{
+	private_enumerator_t *e;
+
+	if ((type != KEY_RSA && type != KEY_ANY) ||
+		id == NULL || id->get_type(id) != ID_KEY_ID)
+	{
+		DBG1(DBG_CFG, "%N - %Y", key_type_names, type, id);
+		return NULL;
+	}
+
+	e = malloc_thing(private_enumerator_t);
+	e->current = NULL;
+	e->public.enumerate = (void*)private_enumerator_enumerate;
+	e->public.destroy = (void*)private_enumerator_destroy;
+	e->inner = this->db->query(this->db,
+						"SELECT PrivateKey FROM ClientConfig WHERE KeyId = ?",
+						DB_BLOB, id->get_encoding(id),
+						DB_BLOB);
+	if (!e->inner)
+	{
+		free(e);
+		return NULL;
+	}
+	return &e->public;
+}
+
+/**
+ * enumerator over certificates
+ */
+typedef struct {
+	/** implements enumerator */
+	enumerator_t public;
+	/** inner SQL enumerator */
+	enumerator_t *inner;
+	/** currently enumerated cert */
+	certificate_t *current;
+	/** type of requested key */
+	key_type_t type;
+} cert_enumerator_t;
+
+/**
+ * Implementation of cert_enumerator_t.public.enumerate
+ */
+static bool cert_enumerator_enumerate(cert_enumerator_t *this,
+									  certificate_t **cert)
+{
+	public_key_t *public;
+	chunk_t chunk;
+
+	DESTROY_IF(this->current);
+	while (this->inner->enumerate(this->inner, &chunk))
+	{
+		public = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ANY,
+									BUILD_BLOB_ASN1_DER, chunk,
+									BUILD_END);
+		if (public)
+		{
+			if (this->type == KEY_ANY || this->type == public->get_type(public))
+			{
+				this->current = lib->creds->create(lib->creds,
+										CRED_CERTIFICATE, CERT_TRUSTED_PUBKEY,
+										BUILD_PUBLIC_KEY, public, BUILD_END);
+				public->destroy(public);
+				if (this->current)
+				{
+					*cert = this->current;
+					return TRUE;
+				}
+			}
+			else
+			{
+				public->destroy(public);
+			}
+		}
+	}
+	this->current = NULL;
+	return FALSE;
+}
+
+/**
+ * Implementation of cert_enumerator_t.public.destroy
+ */
+static void cert_enumerator_destroy(cert_enumerator_t *this)
+{
+	DESTROY_IF(this->current);
+	this->inner->destroy(this->inner);
+	free(this);
+}
+
+/**
+ * Implementation of credential_set_t.create_cert_enumerator.
+ */
+static enumerator_t* create_cert_enumerator(private_medcli_creds_t *this,
+										certificate_type_t cert, key_type_t key,
+										identification_t *id, bool trusted)
+{
+	cert_enumerator_t *e;
+
+	if ((cert != CERT_TRUSTED_PUBKEY && cert != CERT_ANY) ||
+		id == NULL || id->get_type(id) != ID_KEY_ID)
+	{
+		return NULL;
+	}
+
+	e = malloc_thing(cert_enumerator_t);
+	e->current = NULL;
+	e->type = key;
+	e->public.enumerate = (void*)cert_enumerator_enumerate;
+	e->public.destroy = (void*)cert_enumerator_destroy;
+	e->inner = this->db->query(this->db,
+			"SELECT PublicKey FROM ClientConfig WHERE KeyId = ? UNION "
+			"SELECT PublicKey FROM MediationServerConfig WHERE KeyId = ? UNION "
+			"SELECT PublicKey FROM Connection WHERE KeyId = ?",
+			DB_BLOB, id->get_encoding(id),
+			DB_BLOB, id->get_encoding(id),
+			DB_BLOB, id->get_encoding(id),
+			DB_BLOB);
+	if (!e->inner)
+	{
+		free(e);
+		return NULL;
+	}
+	return &e->public;
+}
+
+/**
+ * Implementation of backend_t.destroy.
+ */
+static void destroy(private_medcli_creds_t *this)
+{
+	free(this);
+}
+
+/**
+ * Described in header.
+ */
+medcli_creds_t *medcli_creds_create(database_t *db)
+{
+	private_medcli_creds_t *this = malloc_thing(private_medcli_creds_t);
+
+	this->public.set.create_private_enumerator = (void*)create_private_enumerator;
+	this->public.set.create_cert_enumerator = (void*)create_cert_enumerator;
+	this->public.set.create_shared_enumerator = (void*)return_null;
+	this->public.set.create_cdp_enumerator = (void*)return_null;
+	this->public.set.cache_cert = (void*)nop;
+
+	this->public.destroy = (void (*)(medcli_creds_t*))destroy;
+
+	this->db = db;
+
+	return &this->public;
+}
+