Annotation of embedaddon/strongswan/src/libimcv/generic/generic_attr_string.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2013-2015 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 "generic_attr_string.h"
! 17:
! 18: #include <imcv.h>
! 19: #include <pen/pen.h>
! 20: #include <utils/debug.h>
! 21:
! 22: typedef struct private_generic_attr_string_t private_generic_attr_string_t;
! 23:
! 24: /**
! 25: * Private data of an generic_attr_string_t object.
! 26: */
! 27: struct private_generic_attr_string_t {
! 28:
! 29: /**
! 30: * Public members of generic_attr_string_t
! 31: */
! 32: generic_attr_string_t public;
! 33:
! 34: /**
! 35: * Vendor-specific attribute type
! 36: */
! 37: pen_type_t type;
! 38:
! 39: /**
! 40: * Length of attribute value
! 41: */
! 42: size_t length;
! 43:
! 44: /**
! 45: * Attribute value or segment
! 46: */
! 47: chunk_t value;
! 48:
! 49: /**
! 50: * Noskip flag
! 51: */
! 52: bool noskip_flag;
! 53:
! 54: /**
! 55: * Reference count
! 56: */
! 57: refcount_t ref;
! 58: };
! 59:
! 60: METHOD(pa_tnc_attr_t, get_type, pen_type_t,
! 61: private_generic_attr_string_t *this)
! 62: {
! 63: return this->type;
! 64: }
! 65:
! 66: METHOD(pa_tnc_attr_t, get_value, chunk_t,
! 67: private_generic_attr_string_t *this)
! 68: {
! 69: return this->value;
! 70: }
! 71:
! 72: METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
! 73: private_generic_attr_string_t *this)
! 74: {
! 75: return this->noskip_flag;
! 76: }
! 77:
! 78: METHOD(pa_tnc_attr_t, set_noskip_flag,void,
! 79: private_generic_attr_string_t *this, bool noskip)
! 80: {
! 81: this->noskip_flag = noskip;
! 82: }
! 83:
! 84: METHOD(pa_tnc_attr_t, build, void,
! 85: private_generic_attr_string_t *this)
! 86: {
! 87: return;
! 88: }
! 89:
! 90: METHOD(pa_tnc_attr_t, process, status_t,
! 91: private_generic_attr_string_t *this, uint32_t *offset)
! 92: {
! 93: enum_name_t *pa_attr_names;
! 94: u_char *pos;
! 95: *offset = 0;
! 96:
! 97: if (this->value.len < this->length)
! 98: {
! 99: return NEED_MORE;
! 100: }
! 101: pa_attr_names = imcv_pa_tnc_attributes->get_names(imcv_pa_tnc_attributes,
! 102: this->type.vendor_id);
! 103: if (this->value.len > this->length)
! 104: {
! 105: DBG1(DBG_TNC, "inconsistent length of %N/%N string attribute",
! 106: pen_names, this->type.vendor_id, pa_attr_names, this->type.type);
! 107: return FAILED;
! 108: }
! 109:
! 110: pos = memchr(this->value.ptr, '\0', this->value.len);
! 111: if (pos)
! 112: {
! 113: DBG1(DBG_TNC, "nul termination in %N/%N string attribute",
! 114: pen_names, this->type.vendor_id, pa_attr_names, this->type.type);
! 115: *offset = pos - this->value.ptr;
! 116: return FAILED;
! 117: }
! 118:
! 119: return SUCCESS;
! 120: }
! 121:
! 122: METHOD(pa_tnc_attr_t, add_segment, void,
! 123: private_generic_attr_string_t *this, chunk_t segment)
! 124: {
! 125: this->value = chunk_cat("mc", this->value, segment);
! 126: }
! 127:
! 128: METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
! 129: private_generic_attr_string_t *this)
! 130: {
! 131: ref_get(&this->ref);
! 132: return &this->public.pa_tnc_attribute;
! 133: }
! 134:
! 135: METHOD(pa_tnc_attr_t, destroy, void,
! 136: private_generic_attr_string_t *this)
! 137: {
! 138: if (ref_put(&this->ref))
! 139: {
! 140: free(this->value.ptr);
! 141: free(this);
! 142: }
! 143: }
! 144:
! 145: /**
! 146: * Described in header.
! 147: */
! 148: pa_tnc_attr_t *generic_attr_string_create_from_data(size_t length,
! 149: chunk_t value, pen_type_t type)
! 150: {
! 151: private_generic_attr_string_t *this;
! 152:
! 153: INIT(this,
! 154: .public = {
! 155: .pa_tnc_attribute = {
! 156: .get_type = _get_type,
! 157: .get_value = _get_value,
! 158: .get_noskip_flag = _get_noskip_flag,
! 159: .set_noskip_flag = _set_noskip_flag,
! 160: .build = _build,
! 161: .process = _process,
! 162: .add_segment = _add_segment,
! 163: .get_ref = _get_ref,
! 164: .destroy = _destroy,
! 165: },
! 166: },
! 167: .type = type,
! 168: .length = length,
! 169: .value = chunk_clone(value),
! 170: .ref = 1,
! 171: );
! 172:
! 173: return &this->public.pa_tnc_attribute;
! 174: }
! 175:
! 176: /**
! 177: * Described in header.
! 178: */
! 179: pa_tnc_attr_t *generic_attr_string_create(chunk_t value, pen_type_t type)
! 180: {
! 181: return generic_attr_string_create_from_data(value.len, value, type);
! 182: }
! 183:
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