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implemented IETF String Version attribute

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This commit is contained in:
Andreas Steffen
2012-10-10 12:30:18 +02:00
parent 7d202f56b9
commit 7174a0a527
8 changed files with 446 additions and 26 deletions
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src/libimcv/ietf/ietf_attr.c
+6 -4
View File
@@ -13,12 +13,13 @@
*/
#include "ietf_attr.h"
#include "ietf/ietf_attr_assess_result.h"
#include "ietf/ietf_attr_attr_request.h"
#include "ietf/ietf_attr_installed_packages.h"
#include "ietf/ietf_attr_pa_tnc_error.h"
#include "ietf/ietf_attr_port_filter.h"
#include "ietf/ietf_attr_product_info.h"
#include "ietf/ietf_attr_installed_packages.h"
#include "ietf/ietf_attr_attr_request.h"
#include "ietf/ietf_attr_assess_result.h"
#include "ietf/ietf_attr_string_version.h"
ENUM(ietf_attr_names, IETF_ATTR_TESTING, IETF_ATTR_FACTORY_DEFAULT_PWD_ENABLED,
@@ -48,6 +49,8 @@ pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, chunk_t value)
return ietf_attr_attr_request_create_from_data(value);
case IETF_ATTR_PRODUCT_INFORMATION:
return ietf_attr_product_info_create_from_data(value);
case IETF_ATTR_STRING_VERSION:
return ietf_attr_string_version_create_from_data(value);
case IETF_ATTR_PORT_FILTER:
return ietf_attr_port_filter_create_from_data(value);
case IETF_ATTR_INSTALLED_PACKAGES:
@@ -58,7 +61,6 @@ pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, chunk_t value)
return ietf_attr_assess_result_create_from_data(value);
case IETF_ATTR_TESTING:
case IETF_ATTR_NUMERIC_VERSION:
case IETF_ATTR_STRING_VERSION:
case IETF_ATTR_OPERATIONAL_STATUS:
case IETF_ATTR_REMEDIATION_INSTRUCTIONS:
case IETF_ATTR_FORWARDING_ENABLED:
src/libimcv/ietf/ietf_attr_string_version.c
+298
View File
@@ -0,0 +1,298 @@
/*
* 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 "ietf_attr_string_version.h"
#include <pa_tnc/pa_tnc_msg.h>
#include <bio/bio_writer.h>
#include <bio/bio_reader.h>
#include <debug.h>
typedef struct private_ietf_attr_string_version_t private_ietf_attr_string_version_t;
/**
* PA-TNC String Version type (see section 4.2.4 of RFC 5792)
*
* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Version Len | Product Version Number (Variable Length) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Build Num Len | Internal Build Number (Variable Length) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Config. Len | Configuration Version Number (Variable Length)|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
#define STRING_VERSION_MIN_SIZE 3
/**
* Private data of an ietf_attr_string_version_t object.
*/
struct private_ietf_attr_string_version_t {
/**
* Public members of ietf_attr_string_version_t
*/
ietf_attr_string_version_t public;
/**
* Vendor-specific attribute type
*/
pen_type_t type;
/**
* Attribute value
*/
chunk_t value;
/**
* Noskip flag
*/
bool noskip_flag;
/**
* Product Version Number
*/
chunk_t version;
/**
* Internal Build Number
*/
chunk_t build;
/**
* Configuration Version Number
*/
chunk_t config;
/**
* Reference count
*/
refcount_t ref;
};
METHOD(pa_tnc_attr_t, get_type, pen_type_t,
private_ietf_attr_string_version_t *this)
{
return this->type;
}
METHOD(pa_tnc_attr_t, get_value, chunk_t,
private_ietf_attr_string_version_t *this)
{
return this->value;
}
METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
private_ietf_attr_string_version_t *this)
{
return this->noskip_flag;
}
METHOD(pa_tnc_attr_t, set_noskip_flag,void,
private_ietf_attr_string_version_t *this, bool noskip)
{
this->noskip_flag = noskip;
}
METHOD(pa_tnc_attr_t, build, void,
private_ietf_attr_string_version_t *this)
{
bio_writer_t *writer;
if (this->value.ptr)
{
return;
}
writer = bio_writer_create(STRING_VERSION_MIN_SIZE);
writer->write_data8(writer, this->version);
writer->write_data8(writer, this->build);
writer->write_data8(writer, this->config);
this->value = chunk_clone(writer->get_buf(writer));
writer->destroy(writer);
}
METHOD(pa_tnc_attr_t, process, status_t,
private_ietf_attr_string_version_t *this, u_int32_t *offset)
{
bio_reader_t *reader;
status_t status = FAILED;
chunk_t version, build, config;
u_char *pos;
*offset = 0;
if (this->value.len < STRING_VERSION_MIN_SIZE)
{
DBG1(DBG_TNC, "insufficient data for IETF string version");
return FAILED;
}
reader = bio_reader_create(this->value);
if (!reader->read_data8(reader, &version))
{
DBG1(DBG_TNC, "insufficient data for IETF product version number");
goto end;
}
pos = memchr(version.ptr, '\0', version.len);
if (pos)
{
DBG1(DBG_TNC, "nul termination in IETF product version number");
*offset += 1 + (pos - version.ptr);
goto end;
}
*offset += 1 + version.len;
if (!reader->read_data8(reader, &build))
{
DBG1(DBG_TNC, "insufficient data for IETF internal build number");
goto end;
}
pos = memchr(build.ptr, '\0', build.len);
if (pos)
{
DBG1(DBG_TNC, "nul termination in IETF internal build number");
*offset += 1 + (pos - build.ptr);
goto end;
}
*offset += 1 + build.len;
if (!reader->read_data8(reader, &config))
{
DBG1(DBG_TNC, "insufficient data for IETF configuration version number");
goto end;
}
pos = memchr(config.ptr, '\0', config.len);
if (pos)
{
DBG1(DBG_TNC, "nul termination in IETF configuration version number");
*offset += 1 + (pos - config.ptr);
goto end;
}
this->version = chunk_clone(version);
this->build = chunk_clone(build);
this->config = chunk_clone(config);
status = SUCCESS;
end:
reader->destroy(reader);
return status;
}
METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
private_ietf_attr_string_version_t *this)
{
ref_get(&this->ref);
return &this->public.pa_tnc_attribute;
}
METHOD(pa_tnc_attr_t, destroy, void,
private_ietf_attr_string_version_t *this)
{
if (ref_put(&this->ref))
{
free(this->version.ptr);
free(this->build.ptr);
free(this->config.ptr);
free(this->value.ptr);
free(this);
}
}
METHOD(ietf_attr_string_version_t, get_version, chunk_t,
private_ietf_attr_string_version_t *this, chunk_t *build, chunk_t *config)
{
if (build)
{
*build = this->build;
}
if (config)
{
*config = this->config;
}
return this->version;
}
/**
* Described in header.
*/
pa_tnc_attr_t *ietf_attr_string_version_create(chunk_t version, chunk_t build,
chunk_t config)
{
private_ietf_attr_string_version_t *this;
/* limit version numbers to 255 octets */
version.len = min(255, version.len);
build.len = min(255, build.len);
config.len = min(255, config.len);
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,
},
.get_version = _get_version,
},
.type = { PEN_IETF, IETF_ATTR_STRING_VERSION },
.version = chunk_clone(version),
.build = chunk_clone(build),
.config = chunk_clone(config),
.ref = 1,
);
return &this->public.pa_tnc_attribute;
}
/**
* Described in header.
*/
pa_tnc_attr_t *ietf_attr_string_version_create_from_data(chunk_t data)
{
private_ietf_attr_string_version_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_type = _get_type,
.get_value = _get_value,
.build = _build,
.process = _process,
.get_ref = _get_ref,
.destroy = _destroy,
},
.get_version = _get_version,
},
.type = { PEN_IETF, IETF_ATTR_STRING_VERSION },
.value = chunk_clone(data),
.ref = 1,
);
return &this->public.pa_tnc_attribute;
}
src/libimcv/ietf/ietf_attr_string_version.h
+67
View File
@@ -0,0 +1,67 @@
/*
* 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.
*/
/**
* @defgroup ietf_attr_string_versiont ietf_attr_string_version
* @{ @ingroup ietf
*/
#ifndef IETF_ATTR_STRING_VERSION_H_
#define IETF_ATTR_STRING_VERSION_H_
typedef struct ietf_attr_string_version_t ietf_attr_string_version_t;
#include "ietf_attr.h"
#include "pa_tnc/pa_tnc_attr.h"
/**
* Class implementing the IETF PA-TNC Product Information attribute.
*
*/
struct ietf_attr_string_version_t {
/**
* Public PA-TNC attribute interface
*/
pa_tnc_attr_t pa_tnc_attribute;
/**
* Gets the Product Version Number and optionally the Internal Build
* and Configuration Version Numbers
*
* @param build Internal Build Number (if build != NULL)
* @param config Configuration Version Number (if config != NULL)
* @return Product Version Number
*/
chunk_t (*get_version)(ietf_attr_string_version_t *this, chunk_t *build,
chunk_t *config);
};
/**
* Creates an ietf_attr_string_version_t object
*
*/
pa_tnc_attr_t* ietf_attr_string_version_create(chunk_t version, chunk_t build,
chunk_t config);
/**
* Creates an ietf_attr_string_version_t object from received data
*
* @param value unparsed attribute value
*/
pa_tnc_attr_t* ietf_attr_string_version_create_from_data(chunk_t value);
#endif /** IETF_ATTR_STRING_VERSION_H_ @}*/