summaryrefslogtreecommitdiff
path: root/keyexchange/isakmpd-20041012/isakmp_doi.c
diff options
context:
space:
mode:
authorOthmar Gsenger <otti@anytun.org>2007-12-27 11:13:13 +0000
committerOthmar Gsenger <otti@anytun.org>2007-12-27 11:13:13 +0000
commit6dc4f1912caf7f01f4b977ff8aaa50be61db2aba (patch)
treed7a281c430052e04156265d9ab3108c631360a5e /keyexchange/isakmpd-20041012/isakmp_doi.c
parentremoved old isakmpd (diff)
adden new isakmpd
Diffstat (limited to 'keyexchange/isakmpd-20041012/isakmp_doi.c')
-rw-r--r--keyexchange/isakmpd-20041012/isakmp_doi.c264
1 files changed, 264 insertions, 0 deletions
diff --git a/keyexchange/isakmpd-20041012/isakmp_doi.c b/keyexchange/isakmpd-20041012/isakmp_doi.c
new file mode 100644
index 0000000..2fc8c1d
--- /dev/null
+++ b/keyexchange/isakmpd-20041012/isakmp_doi.c
@@ -0,0 +1,264 @@
+/* $OpenBSD: isakmp_doi.c,v 1.22 2004/06/20 17:17:35 ho Exp $ */
+/* $EOM: isakmp_doi.c,v 1.42 2000/09/12 16:29:41 ho Exp $ */
+
+/*
+ * Copyright (c) 1998, 1999, 2001 Niklas Hallqvist. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This code was written under funding by Ericsson Radio Systems.
+ */
+
+/*
+ * XXX This DOI is very fuzzily defined, and should perhaps be short-circuited
+ * to the IPsec DOI instead. At the moment I will have it as its own DOI,
+ * as the ISAKMP architecture seems to imply it should be done like this.
+ */
+
+#include <sys/types.h>
+
+#include "sysdep.h"
+
+#include "doi.h"
+#include "exchange.h"
+#include "isakmp.h"
+#include "isakmp_doi.h"
+#include "ipsec.h"
+#include "log.h"
+#include "message.h"
+#include "sa.h"
+#include "util.h"
+
+#ifdef USE_DEBUG
+static int isakmp_debug_attribute(u_int16_t, u_int8_t *, u_int16_t,
+ void *);
+#endif
+static void isakmp_finalize_exchange(struct message *);
+static struct keystate *isakmp_get_keystate(struct message *);
+static int isakmp_initiator(struct message *);
+static int isakmp_responder(struct message *);
+static void isakmp_setup_situation(u_int8_t *);
+static size_t isakmp_situation_size(void);
+static u_int8_t isakmp_spi_size(u_int8_t);
+static int isakmp_validate_attribute(u_int16_t, u_int8_t *, u_int16_t,
+ void *);
+static int isakmp_validate_exchange(u_int8_t);
+static int isakmp_validate_id_information(u_int8_t, u_int8_t *,
+ u_int8_t *, size_t, struct exchange *);
+static int isakmp_validate_key_information(u_int8_t *, size_t);
+static int isakmp_validate_notification(u_int16_t);
+static int isakmp_validate_proto(u_int8_t);
+static int isakmp_validate_situation(u_int8_t *, size_t *, size_t);
+static int isakmp_validate_transform_id(u_int8_t, u_int8_t);
+
+static struct doi isakmp_doi = {
+ {0}, ISAKMP_DOI_ISAKMP, 0, 0, 0,
+#ifdef USE_DEBUG
+ isakmp_debug_attribute,
+#endif
+ 0, /* delete_spi not needed. */
+ 0, /* exchange_script not needed. */
+ isakmp_finalize_exchange,
+ 0, /* free_exchange_data not needed. */
+ 0, /* free_proto_data not needed. */
+ 0, /* free_sa_data not needed. */
+ isakmp_get_keystate,
+ 0, /* get_spi not needed. */
+ 0, /* handle_leftover_payload not needed. */
+ 0, /* informational_post_hook not needed. */
+ 0, /* informational_pre_hook not needed. */
+ 0, /* XXX need maybe be filled-in. */
+ 0, /* proto_init not needed. */
+ isakmp_setup_situation,
+ isakmp_situation_size,
+ isakmp_spi_size,
+ isakmp_validate_attribute,
+ isakmp_validate_exchange,
+ isakmp_validate_id_information,
+ isakmp_validate_key_information,
+ isakmp_validate_notification,
+ isakmp_validate_proto,
+ isakmp_validate_situation,
+ isakmp_validate_transform_id,
+ isakmp_initiator,
+ isakmp_responder,
+#ifdef USE_DEBUG
+ ipsec_decode_ids
+#endif
+};
+
+/* Requires doi_init to already have been called. */
+void
+isakmp_doi_init(void)
+{
+ doi_register(&isakmp_doi);
+}
+
+#ifdef USE_DEBUG
+int
+isakmp_debug_attribute(u_int16_t type, u_int8_t *value, u_int16_t len,
+ void *vmsg)
+{
+ /* XXX Not implemented yet. */
+ return 0;
+}
+#endif /* USE_DEBUG */
+
+static void
+isakmp_finalize_exchange(struct message *msg)
+{
+}
+
+static struct keystate *
+isakmp_get_keystate(struct message *msg)
+{
+ return 0;
+}
+
+static void
+isakmp_setup_situation(u_int8_t *buf)
+{
+ /* Nothing to do. */
+}
+
+static size_t
+isakmp_situation_size(void)
+{
+ return 0;
+}
+
+static u_int8_t
+isakmp_spi_size(u_int8_t proto)
+{
+ /* One way to specify ISAKMP SPIs is to say they're zero-sized. */
+ return 0;
+}
+
+static int
+isakmp_validate_attribute(u_int16_t type, u_int8_t *value, u_int16_t len,
+ void *vmsg)
+{
+ /* XXX Not implemented yet. */
+ return -1;
+}
+
+static int
+isakmp_validate_exchange(u_int8_t exch)
+{
+ /* If we get here the exchange is invalid. */
+ return -1;
+}
+
+static int
+isakmp_validate_id_information(u_int8_t type, u_int8_t *extra, u_int8_t *buf,
+ size_t sz, struct exchange *exchange)
+{
+ return zero_test(extra, ISAKMP_ID_DOI_DATA_LEN);
+}
+
+static int
+isakmp_validate_key_information(u_int8_t *buf, size_t sz)
+{
+ /* Nothing to do. */
+ return 0;
+}
+
+static int
+isakmp_validate_notification(u_int16_t type)
+{
+ /* If we get here the message type is invalid. */
+ return -1;
+}
+
+static int
+isakmp_validate_proto(u_int8_t proto)
+{
+ /* If we get here the protocol is invalid. */
+ return -1;
+}
+
+static int
+isakmp_validate_situation(u_int8_t *buf, size_t *sz, size_t len)
+{
+ /* There are no situations in the ISAKMP DOI. */
+ *sz = 0;
+ return 0;
+}
+
+static int
+isakmp_validate_transform_id(u_int8_t proto, u_int8_t transform_id)
+{
+ /* XXX Not yet implemented. */
+ return -1;
+}
+
+static int
+isakmp_initiator(struct message *msg)
+{
+ if (msg->exchange->type != ISAKMP_EXCH_INFO) {
+ log_print("isakmp_initiator: unsupported exchange type %d "
+ "in phase %d", msg->exchange->type, msg->exchange->phase);
+ return -1;
+ }
+ return message_send_info(msg);
+}
+
+static int
+isakmp_responder(struct message *msg)
+{
+ struct payload *p;
+
+ switch (msg->exchange->type) {
+ case ISAKMP_EXCH_INFO:
+ for (p = payload_first(msg, ISAKMP_PAYLOAD_NOTIFY); p;
+ p = TAILQ_NEXT(p, link)) {
+ LOG_DBG((LOG_EXCHANGE, 10, "isakmp_responder: "
+ "got NOTIFY of type %s, ignoring",
+ constant_name(isakmp_notify_cst,
+ GET_ISAKMP_NOTIFY_MSG_TYPE(p->p))));
+ p->flags |= PL_MARK;
+ }
+
+ for (p = payload_first(msg, ISAKMP_PAYLOAD_DELETE); p;
+ p = TAILQ_NEXT(p, link)) {
+ LOG_DBG((LOG_EXCHANGE, 10,
+ "isakmp_responder: got DELETE, ignoring"));
+ p->flags |= PL_MARK;
+ }
+ return 0;
+
+#ifdef USE_ISAKMP_CFG
+ case ISAKMP_EXCH_TRANSACTION:
+ /* return 0 isakmp_cfg_responder (msg); */
+#endif /* USE_ISAKMP_CFG */
+
+ default:
+ /* XXX So far we don't accept any proposals. */
+ if (payload_first(msg, ISAKMP_PAYLOAD_SA)) {
+ message_drop(msg, ISAKMP_NOTIFY_NO_PROPOSAL_CHOSEN,
+ 0, 1, 0);
+ return -1;
+ }
+ }
+ return 0;
+}