src/libimcv/swima/swima_error.c

   1 /*
   2  * Copyright (C) 2017 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 "swima_error.h"
  17
  18 #include <bio/bio_writer.h>
  19 #include <ietf/ietf_attr_pa_tnc_error.h>
  20
  21 /**
  22  * SW_ERROR, SW_SUBSCRIPTION_DENIED_ERROR and SW_SUBSCRIPTION_ID_REUSE_ERROR
  23  *
  24  *                       1                   2                   3
  25  *   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
  26  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  27  *  |            Copy of Request ID / Subscription ID               |
  28  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  29  *  |                Description (variable length)                  |
  30  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  31  */
  32
  33 /**
  34  * SW_RESPONSE_TOO_LARGE_ERROR
  35  *
  36  *                       1                   2                   3
  37  *   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
  38  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  39  *  |            Copy of Request ID / Subscription ID               |
  40  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  41  *  |                    Maximum Allowed Size                       |
  42  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  43  *  |                Description (variable length)                  |
  44  *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  45  */
  46
  47 /**
  48  * Described in header.
  49  */
  50 pa_tnc_attr_t* swima_error_create(pa_tnc_error_code_t code, uint32_t request_id,
  51                                                                   uint32_t max_attr_size, char *description)
  52 {
  53         bio_writer_t *writer;
  54         chunk_t msg_info;
  55         pa_tnc_attr_t *attr;
  56         pen_type_t error_code;
  57
  58         error_code = pen_type_create( PEN_IETF, code);
  59         writer = bio_writer_create(4);
  60         writer->write_uint32(writer, request_id);
  61
  62         if (code == PA_ERROR_SWIMA_RESPONSE_TOO_LARGE)
  63         {
  64                 writer->write_uint32(writer, max_attr_size);
  65         }
  66
  67         if (description)
  68         {
  69                 writer->write_data(writer, chunk_from_str(description));
  70         }
  71         msg_info = writer->get_buf(writer);
  72         attr = ietf_attr_pa_tnc_error_create(error_code, msg_info);
  73         writer->destroy(writer);
  74
  75         return attr;
  76 }
  77