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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/attribute.c
parentremoved old isakmpd (diff)
adden new isakmpd
Diffstat (limited to 'keyexchange/isakmpd-20041012/attribute.c')
-rw-r--r--keyexchange/isakmpd-20041012/attribute.c112
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;
+}