270 lines
6.1 KiB
C
270 lines
6.1 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#define _GNU_SOURCE /* for stdndup() */
|
|
#include <string.h>
|
|
|
|
#include "ita_attr.h"
|
|
#include "ita_attr_get_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>
|
|
|
|
typedef struct private_ita_attr_get_settings_t private_ita_attr_get_settings_t;
|
|
|
|
/**
|
|
* ITA Get 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) ~
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* | Name Length | Name (Variable Length) ~
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* ~ Name (Variable Length) ~
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* ...........................
|
|
*/
|
|
|
|
#define ITA_GET_SETTINGS_MIN_SIZE 4
|
|
|
|
/**
|
|
* Private data of an ita_attr_get_settings_t object.
|
|
*/
|
|
struct private_ita_attr_get_settings_t {
|
|
|
|
/**
|
|
* Public members of ita_attr_get_settings_t
|
|
*/
|
|
ita_attr_get_settings_t public;
|
|
|
|
/**
|
|
* Vendor-specific attribute type
|
|
*/
|
|
pen_type_t type;
|
|
|
|
/**
|
|
* Attribute value
|
|
*/
|
|
chunk_t value;
|
|
|
|
/**
|
|
* Noskip flag
|
|
*/
|
|
bool noskip_flag;
|
|
|
|
/**
|
|
* List of requested settings
|
|
*/
|
|
linked_list_t *list;
|
|
|
|
/**
|
|
* Reference count
|
|
*/
|
|
refcount_t ref;
|
|
};
|
|
|
|
METHOD(pa_tnc_attr_t, get_type, pen_type_t,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
return this->type;
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, get_value, chunk_t,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
return this->value;
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
return this->noskip_flag;
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, set_noskip_flag,void,
|
|
private_ita_attr_get_settings_t *this, bool noskip)
|
|
{
|
|
this->noskip_flag = noskip;
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, build, void,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
bio_writer_t *writer;
|
|
enumerator_t *enumerator;
|
|
char *name;
|
|
|
|
if (this->value.ptr)
|
|
{
|
|
return;
|
|
}
|
|
writer = bio_writer_create(ITA_GET_SETTINGS_MIN_SIZE);
|
|
writer->write_uint32(writer, this->list->get_count(this->list));
|
|
|
|
enumerator = this->list->create_enumerator(this->list);
|
|
while (enumerator->enumerate(enumerator, &name))
|
|
{
|
|
writer->write_data16(writer, chunk_create(name, strlen(name)));
|
|
}
|
|
enumerator->destroy(enumerator);
|
|
|
|
this->value = writer->extract_buf(writer);
|
|
writer->destroy(writer);
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, process, status_t,
|
|
private_ita_attr_get_settings_t *this, u_int32_t *offset)
|
|
{
|
|
bio_reader_t *reader;
|
|
u_int32_t count;
|
|
chunk_t name;
|
|
status_t status = FAILED;
|
|
|
|
if (this->value.len < ITA_GET_SETTINGS_MIN_SIZE)
|
|
{
|
|
DBG1(DBG_TNC, "insufficient data for ITA Get Settings attribute");
|
|
*offset = 0;
|
|
return FAILED;
|
|
}
|
|
|
|
reader = bio_reader_create(this->value);
|
|
reader->read_uint32(reader, &count);
|
|
|
|
*offset = ITA_GET_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;
|
|
|
|
this->list->insert_last(this->list, strndup(name.ptr, name.len));
|
|
}
|
|
status = SUCCESS;
|
|
|
|
end:
|
|
reader->destroy(reader);
|
|
return status;
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
ref_get(&this->ref);
|
|
return &this->public.pa_tnc_attribute;
|
|
}
|
|
|
|
METHOD(pa_tnc_attr_t, destroy, void,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
if (ref_put(&this->ref))
|
|
{
|
|
this->list->destroy_function(this->list, free);
|
|
free(this->value.ptr);
|
|
free(this);
|
|
}
|
|
}
|
|
|
|
METHOD(ita_attr_get_settings_t, add, void,
|
|
private_ita_attr_get_settings_t *this, char *name)
|
|
{
|
|
this->list->insert_last(this->list, strdup(name));
|
|
}
|
|
|
|
METHOD(ita_attr_get_settings_t, create_enumerator, enumerator_t*,
|
|
private_ita_attr_get_settings_t *this)
|
|
{
|
|
return this->list->create_enumerator(this->list);
|
|
}
|
|
|
|
/**
|
|
* Described in header.
|
|
*/
|
|
pa_tnc_attr_t *ita_attr_get_settings_create(char *name)
|
|
{
|
|
private_ita_attr_get_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_GET_SETTINGS },
|
|
.list = linked_list_create(),
|
|
.ref = 1,
|
|
);
|
|
|
|
if (name)
|
|
{
|
|
add(this, name);
|
|
}
|
|
return &this->public.pa_tnc_attribute;
|
|
}
|
|
|
|
/**
|
|
* Described in header.
|
|
*/
|
|
pa_tnc_attr_t *ita_attr_get_settings_create_from_data(chunk_t data)
|
|
{
|
|
private_ita_attr_get_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_GET_SETTINGS },
|
|
.value = chunk_clone(data),
|
|
.list = linked_list_create(),
|
|
.ref = 1,
|
|
);
|
|
|
|
return &this->public.pa_tnc_attribute;
|
|
}
|
|
|
|
|