Imported Upstream version 5.0.2

1 files changed, 326 insertions, 0 deletions

diff --git a/src/libimcv/ita/ita_attr_settings.c b/src/libimcv/ita/ita_attr_settings.c
new file mode 100644
index 000000000..7941cf69e
--- /dev/null
+++ b/src/libimcv/ita/ita_attr_settings.c
@@ -0,0 +1,326 @@
+/*
+ * Copyright (C) 2012 Andreas Steffen
+ * HSR 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 "ita_attr.h"
+#include "ita_attr_settings.h"
+
+#include <bio/bio_reader.h>
+#include <bio/bio_writer.h>
+#include <collections/linked_list.h>
+#include <pen/pen.h>
+#include <utils/debug.h>
+
+#include <string.h>
+
+typedef struct private_ita_attr_settings_t private_ita_attr_settings_t;
+typedef struct entry_t entry_t;
+
+/**
+ * Contains a settins name/value pair
+ */
+struct entry_t {
+	char *name;
+	chunk_t value;
+};
+
+/**
+ * Free an entry_t object
+ */
+static void free_entry(entry_t *this)
+{
+	free(this->name);
+	free(this->value.ptr);
+	free(this);
+}
+
+/**
+ * ITA Settings
+ *
+ *					   1				   2				   3
+ *   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                         Settings Count                        |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |        Name Length            |  Name (Variable Length)       ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  ~                      Name (Variable Length)                   ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |        Value Length           |  Value (Variable Length)      ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  ~                      Value (Variable Length)                  ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |        Name Length            |  Name (Variable Length)       ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  ~                      Name (Variable Length)                   ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |        Value Length           |  Value (Variable Length)      ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  ~                      Value (Variable Length)                  ~
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *					 ...........................
+ */
+
+#define ITA_SETTINGS_MIN_SIZE	4
+
+/**
+ * Private data of an ita_attr_settings_t object.
+ */
+struct private_ita_attr_settings_t {
+
+	/**
+	 * Public members of ita_attr_settings_t
+	 */
+	ita_attr_settings_t public;
+
+	/**
+	 * Vendor-specific attribute type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Attribute value
+	 */
+	chunk_t value;
+
+	/**
+	 * Noskip flag
+	 */
+	bool noskip_flag;
+
+	/**
+	 * List of settings
+	 */
+	linked_list_t *list;
+
+	/**
+	 * Reference count
+	 */
+	refcount_t ref;
+};
+
+METHOD(pa_tnc_attr_t, get_type, pen_type_t,
+	private_ita_attr_settings_t *this)
+{
+	return this->type;
+}
+
+METHOD(pa_tnc_attr_t, get_value, chunk_t,
+	private_ita_attr_settings_t *this)
+{
+	return this->value;
+}
+
+METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
+	private_ita_attr_settings_t *this)
+{
+	return this->noskip_flag;
+}
+
+METHOD(pa_tnc_attr_t, set_noskip_flag,void,
+	private_ita_attr_settings_t *this, bool noskip)
+{
+	this->noskip_flag = noskip;
+}
+
+METHOD(pa_tnc_attr_t, build, void,
+	private_ita_attr_settings_t *this)
+{
+	bio_writer_t *writer;
+	enumerator_t *enumerator;
+	entry_t *entry;
+
+	if (this->value.ptr)
+	{
+		return;
+	}
+	writer = bio_writer_create(ITA_SETTINGS_MIN_SIZE);
+	writer->write_uint32(writer, this->list->get_count(this->list));
+
+	enumerator = this->list->create_enumerator(this->list);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		writer->write_data16(writer, chunk_create(entry->name,
+												  strlen(entry->name)));
+		writer->write_data16(writer, entry->value);
+	}
+	enumerator->destroy(enumerator);
+
+	this->value = chunk_clone(writer->get_buf(writer));
+	writer->destroy(writer);
+}
+
+METHOD(pa_tnc_attr_t, process, status_t,
+	private_ita_attr_settings_t *this, u_int32_t *offset)
+{
+	bio_reader_t *reader;
+	u_int32_t count;
+	chunk_t name, value;
+	entry_t *entry;
+	status_t status = FAILED;
+
+	if (this->value.len < ITA_SETTINGS_MIN_SIZE)
+	{
+		DBG1(DBG_TNC, "insufficient data for ITA Settings attribute");
+		*offset = 0;
+		return FAILED;
+	}
+
+	reader = bio_reader_create(this->value);
+	reader->read_uint32(reader, &count);
+
+	*offset = ITA_SETTINGS_MIN_SIZE;
+
+	while (count--)
+	{
+		if (!reader->read_data16(reader, &name))
+		{
+			DBG1(DBG_TNC, "insufficient data for setting name");
+			goto end;
+		}
+		*offset += 2 + name.len;
+
+		if (!reader->read_data16(reader, &value))
+		{
+			DBG1(DBG_TNC, "insufficient data for setting value");
+			goto end;
+		}
+		*offset += 2 + value.len;
+
+		/* remove a terminating newline character */
+		if (value.len && value.ptr[value.len - 1] == '\n')
+		{
+			value.len--;
+		}
+		entry = malloc_thing(entry_t);
+		entry->name = strndup(name.ptr, name.len);
+		entry->value = chunk_clone(value);
+		this->list->insert_last(this->list, entry);
+	}
+	status = SUCCESS;
+
+end:
+	reader->destroy(reader);	
+	return status;
+}
+
+METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
+	private_ita_attr_settings_t *this)
+{
+	ref_get(&this->ref);
+	return &this->public.pa_tnc_attribute;
+}
+
+METHOD(pa_tnc_attr_t, destroy, void,
+	private_ita_attr_settings_t *this)
+{
+	if (ref_put(&this->ref))
+	{
+		this->list->destroy_function(this->list, (void*)free_entry);	
+		free(this->value.ptr);
+		free(this);
+	}
+}
+
+METHOD(ita_attr_settings_t, add, void,
+	private_ita_attr_settings_t *this, char *name, chunk_t value)
+{
+	entry_t *entry;
+
+	entry = malloc_thing(entry_t);
+	entry->name = strdup(name);
+	entry->value = chunk_clone(value);
+	this->list->insert_last(this->list, entry);
+}
+
+/**
+ * Enumerate name/value pairs
+ */
+static bool entry_filter(void *null, entry_t **entry, char **name,
+						 void *i2, chunk_t *value)
+{
+	*name = (*entry)->name;
+	*value = (*entry)->value;
+	return TRUE;
+}
+
+METHOD(ita_attr_settings_t, create_enumerator, enumerator_t*,
+	private_ita_attr_settings_t *this)
+{
+	return enumerator_create_filter(this->list->create_enumerator(this->list),
+								   (void*)entry_filter, NULL, NULL);
+}
+
+/**
+ * Described in header.
+ */
+pa_tnc_attr_t *ita_attr_settings_create(void)
+{
+	private_ita_attr_settings_t *this;
+
+	INIT(this,
+		.public = {
+			.pa_tnc_attribute = {
+				.get_type = _get_type,
+				.get_value = _get_value,
+				.get_noskip_flag = _get_noskip_flag,
+				.set_noskip_flag = _set_noskip_flag,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.add = _add,
+			.create_enumerator = _create_enumerator,
+		},
+		.type = { PEN_ITA, ITA_ATTR_SETTINGS },
+		.list = linked_list_create(),
+		.ref = 1,
+	);
+
+	return &this->public.pa_tnc_attribute;
+}
+
+/**
+ * Described in header.
+ */
+pa_tnc_attr_t *ita_attr_settings_create_from_data(chunk_t data)
+{
+	private_ita_attr_settings_t *this;
+
+	INIT(this,
+		.public = {
+			.pa_tnc_attribute = {
+				.get_type = _get_type,
+				.get_value = _get_value,
+				.get_noskip_flag = _get_noskip_flag,
+				.set_noskip_flag = _set_noskip_flag,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.add = _add,
+			.create_enumerator = _create_enumerator,
+		},
+		.type = { PEN_ITA, ITA_ATTR_SETTINGS },
+		.value = chunk_clone(data),
+		.list = linked_list_create(),
+		.ref = 1,
+	);
+
+	return &this->public.pa_tnc_attribute;
+}
+
+