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Diffstat (limited to 'src/libcharon/sa/tasks/ike_vendor.c')
-rw-r--r--src/libcharon/sa/tasks/ike_vendor.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/src/libcharon/sa/tasks/ike_vendor.c b/src/libcharon/sa/tasks/ike_vendor.c
new file mode 100644
index 000000000..7c435b6d1
--- /dev/null
+++ b/src/libcharon/sa/tasks/ike_vendor.c
@@ -0,0 +1,139 @@
+/*
+ * 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.
+ */
+
+#include "ike_vendor.h"
+
+#include <daemon.h>
+#include <encoding/payloads/vendor_id_payload.h>
+
+typedef struct private_ike_vendor_t private_ike_vendor_t;
+
+/**
+ * Private data of an ike_vendor_t object.
+ */
+struct private_ike_vendor_t {
+
+ /**
+ * Public ike_vendor_t interface.
+ */
+ ike_vendor_t public;
+
+ /**
+ * Associated IKE_SA
+ */
+ ike_sa_t *ike_sa;
+
+ /**
+ * Are we the inititator of this task
+ */
+ bool initiator;
+};
+
+/**
+ * strongSwan specific vendor ID without version, MD5("strongSwan")
+ */
+static chunk_t strongswan_vid = chunk_from_chars(
+ 0x88,0x2f,0xe5,0x6d,0x6f,0xd2,0x0d,0xbc,
+ 0x22,0x51,0x61,0x3b,0x2e,0xbe,0x5b,0xeb
+);
+
+METHOD(task_t, build, status_t,
+ private_ike_vendor_t *this, message_t *message)
+{
+ if (lib->settings->get_bool(lib->settings,
+ "charon.send_vendor_id", FALSE))
+ {
+ vendor_id_payload_t *vid;
+
+ vid = vendor_id_payload_create_data(chunk_clone(strongswan_vid));
+ message->add_payload(message, &vid->payload_interface);
+ }
+
+ return this->initiator ? NEED_MORE : SUCCESS;
+}
+
+METHOD(task_t, process, status_t,
+ private_ike_vendor_t *this, message_t *message)
+{
+ enumerator_t *enumerator;
+ payload_t *payload;
+
+ enumerator = message->create_payload_enumerator(message);
+ while (enumerator->enumerate(enumerator, &payload))
+ {
+ if (payload->get_type(payload) == VENDOR_ID)
+ {
+ vendor_id_payload_t *vid;
+ chunk_t data;
+
+ vid = (vendor_id_payload_t*)payload;
+ data = vid->get_data(vid);
+
+ if (chunk_equals(data, strongswan_vid))
+ {
+ DBG1(DBG_IKE, "received strongSwan vendor id");
+ this->ike_sa->enable_extension(this->ike_sa, EXT_STRONGSWAN);
+ }
+ else
+ {
+ DBG1(DBG_ENC, "received unknown vendor id: %#B", &data);
+ }
+ }
+ }
+ enumerator->destroy(enumerator);
+
+ return this->initiator ? SUCCESS : NEED_MORE;
+}
+
+METHOD(task_t, migrate, void,
+ private_ike_vendor_t *this, ike_sa_t *ike_sa)
+{
+ this->ike_sa = ike_sa;
+}
+
+METHOD(task_t, get_type, task_type_t,
+ private_ike_vendor_t *this)
+{
+ return IKE_VENDOR;
+}
+
+METHOD(task_t, destroy, void,
+ private_ike_vendor_t *this)
+{
+ free(this);
+}
+
+/**
+ * See header
+ */
+ike_vendor_t *ike_vendor_create(ike_sa_t *ike_sa, bool initiator)
+{
+ private_ike_vendor_t *this;
+
+ INIT(this,
+ .public.task = {
+ .build = _build,
+ .process = _process,
+ .migrate = _migrate,
+ .get_type = _get_type,
+ .destroy = _destroy,
+ },
+ .initiator = initiator,
+ .ike_sa = ike_sa,
+ );
+
+ return &this->public;
+}
+