315 lines
7.2 KiB
C
315 lines
7.2 KiB
C
/*
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* Copyright (C) 2012 Andreas Steffen
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "ietf_attr_op_status.h"
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#include <pa_tnc/pa_tnc_msg.h>
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#include <bio/bio_writer.h>
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#include <bio/bio_reader.h>
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#include <utils/debug.h>
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#include <time.h>
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typedef struct private_ietf_attr_op_status_t private_ietf_attr_op_status_t;
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ENUM(op_status_names, OP_STATUS_UNKNOWN, OP_STATUS_OPERATIONAL,
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"unknown",
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"not installed",
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"installed",
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"operational"
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);
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ENUM(op_result_names, OP_RESULT_UNKNOWN, OP_RESULT_UNSUCCESSFUL,
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"unknown",
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"successful",
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"errored",
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"unsuccessful"
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);
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/**
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* PA-TNC Operational Status type (see section 4.2.5 of RFC 5792)
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*
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* 1 2 3
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* 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
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Status | Result | Reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Last Use |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Last Use (continued) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Last Use (continued) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Last Use (continued) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Last Use (continued) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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#define OP_STATUS_SIZE 24
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/**
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* Private data of an ietf_attr_op_status_t object.
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*/
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struct private_ietf_attr_op_status_t {
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/**
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* Public members of ietf_attr_op_status_t
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*/
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ietf_attr_op_status_t public;
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/**
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* Vendor-specific attribute type
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*/
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pen_type_t type;
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/**
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* Attribute value
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*/
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chunk_t value;
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/**
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* Noskip flag
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*/
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bool noskip_flag;
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/**
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* Status
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*/
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u_int8_t status;
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/**
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* Result
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*/
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u_int8_t result;
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/**
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* Last Use
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*/
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time_t last_use;
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/**
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* Reference count
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*/
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refcount_t ref;
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};
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METHOD(pa_tnc_attr_t, get_type, pen_type_t,
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private_ietf_attr_op_status_t *this)
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{
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return this->type;
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}
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METHOD(pa_tnc_attr_t, get_value, chunk_t,
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private_ietf_attr_op_status_t *this)
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{
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return this->value;
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}
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METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
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private_ietf_attr_op_status_t *this)
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{
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return this->noskip_flag;
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}
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METHOD(pa_tnc_attr_t, set_noskip_flag,void,
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private_ietf_attr_op_status_t *this, bool noskip)
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{
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this->noskip_flag = noskip;
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}
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METHOD(pa_tnc_attr_t, build, void,
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private_ietf_attr_op_status_t *this)
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{
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bio_writer_t *writer;
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char last_use[24];
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struct tm t;
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if (this->value.ptr)
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{
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return;
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}
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/* Conversion from time_t to RFC 3339 ASCII string */
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gmtime_r(&this->last_use, &t);
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snprintf(last_use, 21, "%04d-%02d-%02dT%02d:%02d:%02dZ", 1900 + t.tm_year,
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t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
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writer = bio_writer_create(OP_STATUS_SIZE);
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writer->write_uint8 (writer, this->status);
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writer->write_uint8 (writer, this->result);
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writer->write_uint16(writer, 0x0000);
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writer->write_data (writer, chunk_create(last_use, 20));
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this->value = writer->extract_buf(writer);
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writer->destroy(writer);
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}
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METHOD(pa_tnc_attr_t, process, status_t,
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private_ietf_attr_op_status_t *this, u_int32_t *offset)
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{
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bio_reader_t *reader;
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chunk_t last_use;
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u_int16_t reserved;
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struct tm t;
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*offset = 0;
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if (this->value.len != OP_STATUS_SIZE)
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{
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DBG1(DBG_TNC, "incorrect size for IETF operational status");
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return FAILED;
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}
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reader = bio_reader_create(this->value);
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reader->read_uint8 (reader, &this->status);
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reader->read_uint8 (reader, &this->result);
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reader->read_uint16(reader, &reserved);
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reader->read_data (reader, 20, &last_use);
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reader->destroy(reader);
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if (this->status > OP_STATUS_ROOF)
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{
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DBG1(DBG_TNC, "invalid status value %c for IETF operational status",
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this->status);
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return FAILED;
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}
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*offset = 1;
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if (this->result > OP_RESULT_ROOF)
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{
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DBG1(DBG_TNC, "invalid result value %c for IETF operational status",
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this->result);
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return FAILED;
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}
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*offset = 4;
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/* Conversion from RFC 3339 ASCII string to time_t */
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if (sscanf(last_use.ptr, "%4d-%2d-%2dT%2d:%2d:%2dZ", &t.tm_year, &t.tm_mon,
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&t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec) != 6)
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{
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DBG1(DBG_TNC, "invalid last_use time format in IETF operational status");
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return FAILED;
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}
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t.tm_year -= 1900;
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t.tm_mon -= 1;
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t.tm_isdst = 0;
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this->last_use = mktime(&t) - timezone;
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return SUCCESS;
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}
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METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
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private_ietf_attr_op_status_t *this)
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{
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ref_get(&this->ref);
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return &this->public.pa_tnc_attribute;
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}
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METHOD(pa_tnc_attr_t, destroy, void,
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private_ietf_attr_op_status_t *this)
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{
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if (ref_put(&this->ref))
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{
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free(this->value.ptr);
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free(this);
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}
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}
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METHOD(ietf_attr_op_status_t, get_status, u_int8_t,
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private_ietf_attr_op_status_t *this)
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{
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return this->status;
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}
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METHOD(ietf_attr_op_status_t, get_result, u_int8_t,
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private_ietf_attr_op_status_t *this)
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{
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return this->result;
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}
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METHOD(ietf_attr_op_status_t, get_last_use, time_t,
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private_ietf_attr_op_status_t *this)
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{
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return this->last_use;
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}
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/**
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* Described in header.
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*/
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pa_tnc_attr_t *ietf_attr_op_status_create(u_int8_t status, u_int8_t result,
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time_t last_use)
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{
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private_ietf_attr_op_status_t *this;
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INIT(this,
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.public = {
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.pa_tnc_attribute = {
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.get_type = _get_type,
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.get_value = _get_value,
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.get_noskip_flag = _get_noskip_flag,
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.set_noskip_flag = _set_noskip_flag,
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.build = _build,
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.process = _process,
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.get_ref = _get_ref,
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.destroy = _destroy,
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},
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.get_status = _get_status,
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.get_result = _get_result,
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.get_last_use = _get_last_use,
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},
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.type = { PEN_IETF, IETF_ATTR_OPERATIONAL_STATUS },
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.status = status,
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.result = result,
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.last_use = last_use,
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.ref = 1,
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);
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return &this->public.pa_tnc_attribute;
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}
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/**
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* Described in header.
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*/
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pa_tnc_attr_t *ietf_attr_op_status_create_from_data(chunk_t data)
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{
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private_ietf_attr_op_status_t *this;
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INIT(this,
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.public = {
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.pa_tnc_attribute = {
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.get_type = _get_type,
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.get_value = _get_value,
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.get_noskip_flag = _get_noskip_flag,
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.set_noskip_flag = _set_noskip_flag,
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.build = _build,
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.process = _process,
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.get_ref = _get_ref,
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.destroy = _destroy,
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},
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.get_status = _get_status,
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.get_result = _get_result,
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.get_last_use = _get_last_use,
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},
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.type = { PEN_IETF, IETF_ATTR_OPERATIONAL_STATUS },
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.value = chunk_clone(data),
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.ref = 1,
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);
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return &this->public.pa_tnc_attribute;
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}
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