Annotation of embedaddon/strongswan/src/libimcv/pwg/pwg_attr_vendor_smi_code.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2015 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 "pwg_attr_vendor_smi_code.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_pwg_attr_vendor_smi_code_t private_pwg_attr_vendor_smi_code_t;
! 24:
! 25: /**
! 26: * PWG HCD PA-TNC Vendor SMI Code
! 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: * | Reserved | Vendor SMI Code |
! 32: * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! 33: */
! 34:
! 35: #define VENDOR_SMI_CODE_SIZE 4
! 36:
! 37: /**
! 38: * Private data of an pwg_attr_vendor_smi_code_t object.
! 39: */
! 40: struct private_pwg_attr_vendor_smi_code_t {
! 41:
! 42: /**
! 43: * Public members of pwg_attr_vendor_smi_code_t
! 44: */
! 45: pwg_attr_vendor_smi_code_t public;
! 46:
! 47: /**
! 48: * Vendor-specific attribute type
! 49: */
! 50: pen_type_t type;
! 51:
! 52: /**
! 53: * Length of attribute value
! 54: */
! 55: size_t length;
! 56:
! 57: /**
! 58: * Attribute value or segment
! 59: */
! 60: chunk_t value;
! 61:
! 62: /**
! 63: * Noskip flag
! 64: */
! 65: bool noskip_flag;
! 66:
! 67: /**
! 68: * Vendor SMI code
! 69: */
! 70: pen_t vendor_smi_code;
! 71:
! 72: /**
! 73: * Reference count
! 74: */
! 75: refcount_t ref;
! 76: };
! 77:
! 78: METHOD(pa_tnc_attr_t, get_type, pen_type_t,
! 79: private_pwg_attr_vendor_smi_code_t *this)
! 80: {
! 81: return this->type;
! 82: }
! 83:
! 84: METHOD(pa_tnc_attr_t, get_value, chunk_t,
! 85: private_pwg_attr_vendor_smi_code_t *this)
! 86: {
! 87: return this->value;
! 88: }
! 89:
! 90: METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
! 91: private_pwg_attr_vendor_smi_code_t *this)
! 92: {
! 93: return this->noskip_flag;
! 94: }
! 95:
! 96: METHOD(pa_tnc_attr_t, set_noskip_flag,void,
! 97: private_pwg_attr_vendor_smi_code_t *this, bool noskip)
! 98: {
! 99: this->noskip_flag = noskip;
! 100: }
! 101:
! 102: METHOD(pa_tnc_attr_t, build, void,
! 103: private_pwg_attr_vendor_smi_code_t *this)
! 104: {
! 105: bio_writer_t *writer;
! 106:
! 107: if (this->value.ptr)
! 108: {
! 109: return;
! 110: }
! 111: writer = bio_writer_create(VENDOR_SMI_CODE_SIZE);
! 112: writer->write_uint32(writer, this->vendor_smi_code);
! 113:
! 114: this->value = writer->extract_buf(writer);
! 115: this->length = this->value.len;
! 116: writer->destroy(writer);
! 117: }
! 118:
! 119: METHOD(pa_tnc_attr_t, process, status_t,
! 120: private_pwg_attr_vendor_smi_code_t *this, uint32_t *offset)
! 121: {
! 122: bio_reader_t *reader;
! 123: uint32_t vendor_smi_code;
! 124: uint8_t reserved;
! 125:
! 126: *offset = 0;
! 127:
! 128: if (this->value.len < this->length)
! 129: {
! 130: return NEED_MORE;
! 131: }
! 132: if (this->value.len != VENDOR_SMI_CODE_SIZE)
! 133: {
! 134: DBG1(DBG_TNC, "incorrect attribute length for PWG HCD Vendor SMI Code");
! 135: return FAILED;
! 136: }
! 137: reader = bio_reader_create(this->value);
! 138: reader->read_uint8 (reader, &reserved);
! 139: reader->read_uint24(reader, &vendor_smi_code);
! 140: reader->destroy(reader);
! 141: this->vendor_smi_code = vendor_smi_code;
! 142:
! 143: return SUCCESS;
! 144: }
! 145:
! 146: METHOD(pa_tnc_attr_t, add_segment, void,
! 147: private_pwg_attr_vendor_smi_code_t *this, chunk_t segment)
! 148: {
! 149: this->value = chunk_cat("mc", this->value, segment);
! 150: }
! 151:
! 152: METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
! 153: private_pwg_attr_vendor_smi_code_t *this)
! 154: {
! 155: ref_get(&this->ref);
! 156: return &this->public.pa_tnc_attribute;
! 157: }
! 158:
! 159: METHOD(pa_tnc_attr_t, destroy, void,
! 160: private_pwg_attr_vendor_smi_code_t *this)
! 161: {
! 162: if (ref_put(&this->ref))
! 163: {
! 164: free(this->value.ptr);
! 165: free(this);
! 166: }
! 167: }
! 168:
! 169: METHOD(pwg_attr_vendor_smi_code_t, get_vendor_smi_code, pen_t,
! 170: private_pwg_attr_vendor_smi_code_t *this)
! 171: {
! 172: return this->vendor_smi_code;
! 173: }
! 174:
! 175: /**
! 176: * Described in header.
! 177: */
! 178: pa_tnc_attr_t *pwg_attr_vendor_smi_code_create(pen_t vendor_smi_code)
! 179: {
! 180: private_pwg_attr_vendor_smi_code_t *this;
! 181:
! 182: INIT(this,
! 183: .public = {
! 184: .pa_tnc_attribute = {
! 185: .get_type = _get_type,
! 186: .get_value = _get_value,
! 187: .get_noskip_flag = _get_noskip_flag,
! 188: .set_noskip_flag = _set_noskip_flag,
! 189: .build = _build,
! 190: .process = _process,
! 191: .add_segment = _add_segment,
! 192: .get_ref = _get_ref,
! 193: .destroy = _destroy,
! 194: },
! 195: .get_vendor_smi_code = _get_vendor_smi_code,
! 196: },
! 197: .type = { PEN_PWG, PWG_HCD_VENDOR_SMI_CODE },
! 198: .vendor_smi_code = vendor_smi_code,
! 199: .ref = 1,
! 200: );
! 201:
! 202: return &this->public.pa_tnc_attribute;
! 203: }
! 204:
! 205: /**
! 206: * Described in header.
! 207: */
! 208: pa_tnc_attr_t *pwg_attr_vendor_smi_code_create_from_data(size_t length,
! 209: chunk_t data)
! 210: {
! 211: private_pwg_attr_vendor_smi_code_t *this;
! 212:
! 213: INIT(this,
! 214: .public = {
! 215: .pa_tnc_attribute = {
! 216: .get_type = _get_type,
! 217: .get_value = _get_value,
! 218: .get_noskip_flag = _get_noskip_flag,
! 219: .set_noskip_flag = _set_noskip_flag,
! 220: .build = _build,
! 221: .process = _process,
! 222: .add_segment = _add_segment,
! 223: .get_ref = _get_ref,
! 224: .destroy = _destroy,
! 225: },
! 226: .get_vendor_smi_code = _get_vendor_smi_code,
! 227: },
! 228: .type = { PEN_PWG, PWG_HCD_VENDOR_SMI_CODE },
! 229: .length = length,
! 230: .value = chunk_clone(data),
! 231: .ref = 1,
! 232: );
! 233:
! 234: return &this->public.pa_tnc_attribute;
! 235: }
! 236:
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