Annotation of embedaddon/strongswan/src/libimcv/ietf/ietf_attr_numeric_version.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2012-2014 Andreas Steffen
! 3: * HSR Hochschule fuer Technik Rapperswil
! 4: *
! 5: * This program is free software; you can redistribute it and/or modify it
! 6: * under the terms of the GNU General Public License as published by the
! 7: * Free Software Foundation; either version 2 of the License, or (at your
! 8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
! 9: *
! 10: * This program is distributed in the hope that it will be useful, but
! 11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
! 13: * for more details.
! 14: */
! 15:
! 16: #include "ietf_attr_numeric_version.h"
! 17:
! 18: #include <pa_tnc/pa_tnc_msg.h>
! 19: #include <bio/bio_writer.h>
! 20: #include <bio/bio_reader.h>
! 21: #include <utils/debug.h>
! 22:
! 23: typedef struct private_ietf_attr_numeric_version_t private_ietf_attr_numeric_version_t;
! 24:
! 25: /**
! 26: * PA-TNC Numeric Version type (see section 4.2.3 of RFC 5792)
! 27: *
! 28: * 1 2 3
! 29: * 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
! 30: * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! 31: * | Major Version Number |
! 32: * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! 33: * | Minor Version Number |
! 34: * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! 35: * | Build Number |
! 36: * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! 37: * | Service Pack Major | Service Pack Minor |
! 38: * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! 39: */
! 40:
! 41: #define NUMERIC_VERSION_SIZE 16
! 42:
! 43: /**
! 44: * Private data of an ietf_attr_numeric_version_t object.
! 45: */
! 46: struct private_ietf_attr_numeric_version_t {
! 47:
! 48: /**
! 49: * Public members of ietf_attr_numeric_version_t
! 50: */
! 51: ietf_attr_numeric_version_t public;
! 52:
! 53: /**
! 54: * Vendor-specific attribute type
! 55: */
! 56: pen_type_t type;
! 57:
! 58: /**
! 59: * Length of attribute value
! 60: */
! 61: size_t length;
! 62:
! 63: /**
! 64: * Attribute value or segment
! 65: */
! 66: chunk_t value;
! 67:
! 68: /**
! 69: * Noskip flag
! 70: */
! 71: bool noskip_flag;
! 72:
! 73: /**
! 74: * Major Version Number
! 75: */
! 76: uint32_t major_version;
! 77:
! 78: /**
! 79: * Minor Version Number
! 80: */
! 81: uint32_t minor_version;
! 82:
! 83: /**
! 84: * IBuild Number
! 85: */
! 86: uint32_t build;
! 87:
! 88: /**
! 89: * Service Pack Major Number
! 90: */
! 91: uint16_t service_pack_major;
! 92:
! 93: /**
! 94: * Service Pack Minor Number
! 95: */
! 96: uint16_t service_pack_minor;
! 97:
! 98: /**
! 99: * Reference count
! 100: */
! 101: refcount_t ref;
! 102: };
! 103:
! 104: METHOD(pa_tnc_attr_t, get_type, pen_type_t,
! 105: private_ietf_attr_numeric_version_t *this)
! 106: {
! 107: return this->type;
! 108: }
! 109:
! 110: METHOD(pa_tnc_attr_t, get_value, chunk_t,
! 111: private_ietf_attr_numeric_version_t *this)
! 112: {
! 113: return this->value;
! 114: }
! 115:
! 116: METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
! 117: private_ietf_attr_numeric_version_t *this)
! 118: {
! 119: return this->noskip_flag;
! 120: }
! 121:
! 122: METHOD(pa_tnc_attr_t, set_noskip_flag,void,
! 123: private_ietf_attr_numeric_version_t *this, bool noskip)
! 124: {
! 125: this->noskip_flag = noskip;
! 126: }
! 127:
! 128: METHOD(pa_tnc_attr_t, build, void,
! 129: private_ietf_attr_numeric_version_t *this)
! 130: {
! 131: bio_writer_t *writer;
! 132:
! 133: if (this->value.ptr)
! 134: {
! 135: return;
! 136: }
! 137:
! 138: writer = bio_writer_create(NUMERIC_VERSION_SIZE);
! 139: writer->write_uint32(writer, this->major_version);
! 140: writer->write_uint32(writer, this->minor_version);
! 141: writer->write_uint32(writer, this->build);
! 142: writer->write_uint16(writer, this->service_pack_major);
! 143: writer->write_uint16(writer, this->service_pack_minor);
! 144:
! 145: this->value = writer->extract_buf(writer);
! 146: this->length = this->value.len;
! 147: writer->destroy(writer);
! 148: }
! 149:
! 150: METHOD(pa_tnc_attr_t, process, status_t,
! 151: private_ietf_attr_numeric_version_t *this, uint32_t *offset)
! 152: {
! 153: bio_reader_t *reader;
! 154:
! 155: *offset = 0;
! 156:
! 157: if (this->value.len < this->length)
! 158: {
! 159: return NEED_MORE;
! 160: }
! 161: if (this->value.len < NUMERIC_VERSION_SIZE)
! 162: {
! 163: DBG1(DBG_TNC, "insufficient data for IETF numeric version");
! 164: return FAILED;
! 165: }
! 166: reader = bio_reader_create(this->value);
! 167: reader->read_uint32(reader, &this->major_version);
! 168: reader->read_uint32(reader, &this->minor_version);
! 169: reader->read_uint32(reader, &this->build);
! 170: reader->read_uint16(reader, &this->service_pack_major);
! 171: reader->read_uint16(reader, &this->service_pack_minor);
! 172: reader->destroy(reader);
! 173:
! 174: return SUCCESS;
! 175: }
! 176:
! 177: METHOD(pa_tnc_attr_t, add_segment, void,
! 178: private_ietf_attr_numeric_version_t *this, chunk_t segment)
! 179: {
! 180: this->value = chunk_cat("mc", this->value, segment);
! 181: }
! 182:
! 183: METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
! 184: private_ietf_attr_numeric_version_t *this)
! 185: {
! 186: ref_get(&this->ref);
! 187: return &this->public.pa_tnc_attribute;
! 188: }
! 189:
! 190: METHOD(pa_tnc_attr_t, destroy, void,
! 191: private_ietf_attr_numeric_version_t *this)
! 192: {
! 193: if (ref_put(&this->ref))
! 194: {
! 195: free(this->value.ptr);
! 196: free(this);
! 197: }
! 198: }
! 199:
! 200: METHOD(ietf_attr_numeric_version_t, get_version, void,
! 201: private_ietf_attr_numeric_version_t *this, uint32_t *major, uint32_t *minor)
! 202: {
! 203: if (major)
! 204: {
! 205: *major = this->major_version;
! 206: }
! 207: if (minor)
! 208: {
! 209: *minor = this->minor_version;
! 210: }
! 211: }
! 212:
! 213: METHOD(ietf_attr_numeric_version_t, get_build, uint32_t,
! 214: private_ietf_attr_numeric_version_t *this)
! 215: {
! 216: return this->build;
! 217: }
! 218:
! 219: METHOD(ietf_attr_numeric_version_t, get_service_pack, void,
! 220: private_ietf_attr_numeric_version_t *this, uint16_t *major, uint16_t *minor)
! 221: {
! 222: if (major)
! 223: {
! 224: *major = this->service_pack_major;
! 225: }
! 226: if (minor)
! 227: {
! 228: *minor = this->service_pack_minor;
! 229: }
! 230: }
! 231:
! 232: /**
! 233: * Described in header.
! 234: */
! 235: pa_tnc_attr_t *ietf_attr_numeric_version_create(uint32_t major, uint32_t minor,
! 236: uint32_t build,
! 237: uint16_t service_pack_major,
! 238: uint16_t service_pack_minor)
! 239: {
! 240: private_ietf_attr_numeric_version_t *this;
! 241:
! 242: INIT(this,
! 243: .public = {
! 244: .pa_tnc_attribute = {
! 245: .get_type = _get_type,
! 246: .get_value = _get_value,
! 247: .get_noskip_flag = _get_noskip_flag,
! 248: .set_noskip_flag = _set_noskip_flag,
! 249: .build = _build,
! 250: .process = _process,
! 251: .add_segment = _add_segment,
! 252: .get_ref = _get_ref,
! 253: .destroy = _destroy,
! 254: },
! 255: .get_version = _get_version,
! 256: .get_build = _get_build,
! 257: .get_service_pack = _get_service_pack,
! 258: },
! 259: .type = { PEN_IETF, IETF_ATTR_NUMERIC_VERSION },
! 260: .major_version = major,
! 261: .minor_version = minor,
! 262: .build = build,
! 263: .service_pack_major = service_pack_major,
! 264: .service_pack_minor = service_pack_minor,
! 265: .ref = 1,
! 266: );
! 267:
! 268: return &this->public.pa_tnc_attribute;
! 269: }
! 270:
! 271: /**
! 272: * Described in header.
! 273: */
! 274: pa_tnc_attr_t *ietf_attr_numeric_version_create_from_data(size_t length,
! 275: chunk_t data)
! 276: {
! 277: private_ietf_attr_numeric_version_t *this;
! 278:
! 279: INIT(this,
! 280: .public = {
! 281: .pa_tnc_attribute = {
! 282: .get_type = _get_type,
! 283: .get_value = _get_value,
! 284: .get_noskip_flag = _get_noskip_flag,
! 285: .set_noskip_flag = _set_noskip_flag,
! 286: .build = _build,
! 287: .process = _process,
! 288: .add_segment = _add_segment,
! 289: .get_ref = _get_ref,
! 290: .destroy = _destroy,
! 291: },
! 292: .get_version = _get_version,
! 293: .get_build = _get_build,
! 294: .get_service_pack = _get_service_pack,
! 295: },
! 296: .type = { PEN_IETF, IETF_ATTR_NUMERIC_VERSION },
! 297: .length = length,
! 298: .value = chunk_clone(data),
! 299: .ref = 1,
! 300: );
! 301:
! 302: return &this->public.pa_tnc_attribute;
! 303: }
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