184 lines
3.8 KiB
C
184 lines
3.8 KiB
C
/*
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* Copyright (C) 2013-2015 Andreas Steffen
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "generic_attr_string.h"
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#include <imcv.h>
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#include <pen/pen.h>
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#include <utils/debug.h>
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typedef struct private_generic_attr_string_t private_generic_attr_string_t;
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/**
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* Private data of an generic_attr_string_t object.
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*/
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struct private_generic_attr_string_t {
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/**
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* Public members of generic_attr_string_t
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*/
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generic_attr_string_t public;
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/**
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* Vendor-specific attribute type
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*/
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pen_type_t type;
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/**
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* Length of attribute value
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*/
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size_t length;
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/**
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* Attribute value or segment
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*/
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chunk_t value;
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/**
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* Noskip flag
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*/
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bool noskip_flag;
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/**
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* Reference count
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*/
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refcount_t ref;
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};
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METHOD(pa_tnc_attr_t, get_type, pen_type_t,
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private_generic_attr_string_t *this)
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{
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return this->type;
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}
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METHOD(pa_tnc_attr_t, get_value, chunk_t,
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private_generic_attr_string_t *this)
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{
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return this->value;
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}
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METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
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private_generic_attr_string_t *this)
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{
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return this->noskip_flag;
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}
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METHOD(pa_tnc_attr_t, set_noskip_flag,void,
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private_generic_attr_string_t *this, bool noskip)
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{
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this->noskip_flag = noskip;
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}
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METHOD(pa_tnc_attr_t, build, void,
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private_generic_attr_string_t *this)
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{
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return;
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}
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METHOD(pa_tnc_attr_t, process, status_t,
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private_generic_attr_string_t *this, uint32_t *offset)
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{
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enum_name_t *pa_attr_names;
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u_char *pos;
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*offset = 0;
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if (this->value.len < this->length)
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{
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return NEED_MORE;
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}
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pa_attr_names = imcv_pa_tnc_attributes->get_names(imcv_pa_tnc_attributes,
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this->type.vendor_id);
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if (this->value.len > this->length)
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{
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DBG1(DBG_TNC, "inconsistent length of %N/%N string attribute",
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pen_names, this->type.vendor_id, pa_attr_names, this->type.type);
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return FAILED;
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}
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pos = memchr(this->value.ptr, '\0', this->value.len);
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if (pos)
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{
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DBG1(DBG_TNC, "nul termination in %N/%N string attribute",
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pen_names, this->type.vendor_id, pa_attr_names, this->type.type);
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*offset = pos - this->value.ptr;
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return FAILED;
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}
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return SUCCESS;
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}
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METHOD(pa_tnc_attr_t, add_segment, void,
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private_generic_attr_string_t *this, chunk_t segment)
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{
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this->value = chunk_cat("mc", this->value, segment);
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}
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METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
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private_generic_attr_string_t *this)
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{
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ref_get(&this->ref);
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return &this->public.pa_tnc_attribute;
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}
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METHOD(pa_tnc_attr_t, destroy, void,
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private_generic_attr_string_t *this)
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{
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if (ref_put(&this->ref))
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{
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free(this->value.ptr);
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free(this);
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}
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}
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/**
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* Described in header.
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*/
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pa_tnc_attr_t *generic_attr_string_create_from_data(size_t length,
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chunk_t value, pen_type_t type)
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{
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private_generic_attr_string_t *this;
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INIT(this,
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.public = {
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.pa_tnc_attribute = {
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.get_type = _get_type,
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.get_value = _get_value,
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.get_noskip_flag = _get_noskip_flag,
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.set_noskip_flag = _set_noskip_flag,
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.build = _build,
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.process = _process,
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.add_segment = _add_segment,
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.get_ref = _get_ref,
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.destroy = _destroy,
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},
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},
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.type = type,
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.length = length,
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.value = chunk_clone(value),
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.ref = 1,
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);
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return &this->public.pa_tnc_attribute;
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}
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/**
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* Described in header.
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*/
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pa_tnc_attr_t *generic_attr_string_create(chunk_t value, pen_type_t type)
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{
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return generic_attr_string_create_from_data(value.len, value, type);
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}
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