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Diffstat (limited to 'src/libimcv/ita/ita_attr_settings.c')
-rw-r--r--src/libimcv/ita/ita_attr_settings.c326
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;
+}
+
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 04:28:41 +0000