adden new isakmpd

1 files changed, 112 insertions, 0 deletions

diff --git a/keyexchange/isakmpd-20041012/attribute.c b/keyexchange/isakmpd-20041012/attribute.c
new file mode 100644
index 0000000..362805b
--- /dev/null
+++ b/keyexchange/isakmpd-20041012/attribute.c
@@ -0,0 +1,112 @@
+/* $OpenBSD: attribute.c,v 1.11 2004/05/14 08:42:56 hshoexer Exp $	 */
+/* $EOM: attribute.c,v 1.10 2000/02/20 19:58:36 niklas Exp $	 */
+
+/*
+ * Copyright (c) 1998, 1999 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.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "sysdep.h"
+
+#include "attribute.h"
+#include "conf.h"
+#include "log.h"
+#include "isakmp.h"
+#include "util.h"
+
+u_int8_t *
+attribute_set_basic(u_int8_t *buf, u_int16_t type, u_int16_t value)
+{
+	SET_ISAKMP_ATTR_TYPE(buf, ISAKMP_ATTR_MAKE(1, type));
+	SET_ISAKMP_ATTR_LENGTH_VALUE(buf, value);
+	return buf + ISAKMP_ATTR_VALUE_OFF;
+}
+
+u_int8_t *
+attribute_set_var(u_int8_t *buf, u_int16_t type, u_int8_t *value,
+    u_int16_t len)
+{
+	SET_ISAKMP_ATTR_TYPE(buf, ISAKMP_ATTR_MAKE(0, type));
+	SET_ISAKMP_ATTR_LENGTH_VALUE(buf, len);
+	memcpy(buf + ISAKMP_ATTR_VALUE_OFF, value, len);
+	return buf + ISAKMP_ATTR_VALUE_OFF + len;
+}
+
+/*
+ * Execute a function FUNC taking an attribute type, value, length and ARG
+ * as arguments for each attribute in the area of ISAKMP attributes located
+ * at BUF, sized SZ.  If any invocation fails, the processing aborts with a
+ * -1 return value.  If all goes well return zero.
+ */
+int
+attribute_map(u_int8_t *buf, size_t sz, int (*func)(u_int16_t, u_int8_t *,
+    u_int16_t, void *), void *arg)
+{
+	u_int8_t       *attr;
+	int             fmt;
+	u_int16_t       type;
+	u_int8_t       *value;
+	u_int16_t       len;
+
+	for (attr = buf; attr < buf + sz; attr = value + len) {
+		if (attr + ISAKMP_ATTR_VALUE_OFF > buf + sz)
+			return -1;
+		type = GET_ISAKMP_ATTR_TYPE(attr);
+		fmt = ISAKMP_ATTR_FORMAT(type);
+		type = ISAKMP_ATTR_TYPE(type);
+		value = attr + (fmt ? ISAKMP_ATTR_LENGTH_VALUE_OFF
+		    : ISAKMP_ATTR_VALUE_OFF);
+		len = (fmt ? ISAKMP_ATTR_LENGTH_VALUE_LEN
+		    : GET_ISAKMP_ATTR_LENGTH_VALUE(attr));
+		if (value + len > buf + sz)
+			return -1;
+		if (func(type, value, len, arg))
+			return -1;
+	}
+	return 0;
+}
+
+int
+attribute_set_constant(char *section, char *tag, struct constant_map *map,
+    int attr_class, u_int8_t **attr)
+{
+	char	*name;
+	int	 value;
+
+	name = conf_get_str(section, tag);
+	if (!name) {
+		LOG_DBG((LOG_MISC, 70,
+		    "attribute_set_constant: no %s in the %s section", tag,
+		    section));
+		return -1;
+	}
+	value = constant_value(map, name);
+	*attr = attribute_set_basic(*attr, attr_class, value);
+	return 0;
+}