diff options
Diffstat (limited to 'src/libimcv/ietf/ietf_attr_numeric_version.c')
| -rw-r--r-- | src/libimcv/ietf/ietf_attr_numeric_version.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/src/libimcv/ietf/ietf_attr_numeric_version.c b/src/libimcv/ietf/ietf_attr_numeric_version.c new file mode 100644 index 000000000..739256457 --- /dev/null +++ b/src/libimcv/ietf/ietf_attr_numeric_version.c @@ -0,0 +1,282 @@ +/* + * 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_numeric_version.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_ietf_attr_numeric_version_t private_ietf_attr_numeric_version_t; + +/** + * PA-TNC Numeric Version type (see section 4.2.3 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 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Major Version Number | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Minor Version Number | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Build Number | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Service Pack Major | Service Pack Minor | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define NUMERIC_VERSION_SIZE 16 + +/** + * Private data of an ietf_attr_numeric_version_t object. + */ +struct private_ietf_attr_numeric_version_t { + + /** + * Public members of ietf_attr_numeric_version_t + */ + ietf_attr_numeric_version_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Attribute value + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Major Version Number + */ + u_int32_t major_version; + + /** + * Minor Version Number + */ + u_int32_t minor_version; + + /** + * IBuild Number + */ + u_int32_t build; + + /** + * Service Pack Major Number + */ + u_int16_t service_pack_major; + + /** + * Service Pack Minor Number + */ + u_int16_t service_pack_minor; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_ietf_attr_numeric_version_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_ietf_attr_numeric_version_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_ietf_attr_numeric_version_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_ietf_attr_numeric_version_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_ietf_attr_numeric_version_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + + writer = bio_writer_create(NUMERIC_VERSION_SIZE); + writer->write_uint32(writer, this->major_version); + writer->write_uint32(writer, this->minor_version); + writer->write_uint32(writer, this->build); + writer->write_uint16(writer, this->service_pack_major); + writer->write_uint16(writer, this->service_pack_minor); + + this->value = writer->extract_buf(writer); + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_ietf_attr_numeric_version_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + + if (this->value.len < NUMERIC_VERSION_SIZE) + { + DBG1(DBG_TNC, "insufficient data for IETF numeric version"); + *offset = 0; + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint32(reader, &this->major_version); + reader->read_uint32(reader, &this->minor_version); + reader->read_uint32(reader, &this->build); + reader->read_uint16(reader, &this->service_pack_major); + reader->read_uint16(reader, &this->service_pack_minor); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_ietf_attr_numeric_version_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_ietf_attr_numeric_version_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(ietf_attr_numeric_version_t, get_version, void, + private_ietf_attr_numeric_version_t *this, u_int32_t *major, u_int32_t *minor) +{ + if (major) + { + *major = this->major_version; + } + if (minor) + { + *minor = this->minor_version; + } +} + +METHOD(ietf_attr_numeric_version_t, get_build, u_int32_t, + private_ietf_attr_numeric_version_t *this) +{ + return this->build; +} + +METHOD(ietf_attr_numeric_version_t, get_service_pack, void, + private_ietf_attr_numeric_version_t *this, u_int16_t *major, u_int16_t *minor) +{ + if (major) + { + *major = this->service_pack_major; + } + if (minor) + { + *minor = this->service_pack_minor; + } +} + +/** + * Described in header. + */ +pa_tnc_attr_t *ietf_attr_numeric_version_create(u_int32_t major, u_int32_t minor, + u_int32_t build, + u_int16_t service_pack_major, + u_int16_t service_pack_minor) +{ + private_ietf_attr_numeric_version_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, + }, + .get_version = _get_version, + .get_build = _get_build, + .get_service_pack = _get_service_pack, + }, + .type = { PEN_IETF, IETF_ATTR_NUMERIC_VERSION }, + .major_version = major, + .minor_version = minor, + .build = build, + .service_pack_major = service_pack_major, + .service_pack_minor = service_pack_minor, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *ietf_attr_numeric_version_create_from_data(chunk_t data) +{ + private_ietf_attr_numeric_version_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, + }, + .get_version = _get_version, + .get_build = _get_build, + .get_service_pack = _get_service_pack, + }, + .type = { PEN_IETF, IETF_ATTR_NUMERIC_VERSION }, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} |