src/charon-tkm/src/tkm/tkm.c

   1 /*
   2  * Copyright (C) 2012 Reto Buerki
   3  * Copyright (C) 2012 Adrian-Ken Rueegsegger
   4  * Hochschule fuer Technik Rapperswil
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * for more details.
  15  */
  16
  17 #include <tkm/client.h>
  18 #include <tkm/constants.h>
  19
  20 #include "tkm.h"
  21
  22 #define IKE_SOCKET "/tmp/tkm.rpc.ike"
  23
  24 typedef struct private_tkm_t private_tkm_t;
  25
  26 /**
  27  * Private additions to tkm_t.
  28  */
  29 struct private_tkm_t {
  30
  31         /**
  32          * Public members of tkm_t.
  33          */
  34         tkm_t public;
  35 };
  36
  37 /**
  38  * Single instance of tkm_t.
  39  */
  40 tkm_t *tkm = NULL;
  41
  42 /**
  43  * Described in header.
  44  */
  45 bool tkm_init()
  46 {
  47         private_tkm_t *this;
  48
  49         active_requests_type max_requests;
  50         nc_id_type nc;
  51         dh_id_type dh;
  52         cc_id_type cc;
  53         ae_id_type ae;
  54         isa_id_type isa;
  55         esa_id_type esa;
  56
  57         /* initialize TKM client library */
  58         tkmlib_init();
  59         if (ike_init(IKE_SOCKET) != TKM_OK)
  60         {
  61                 tkmlib_final();
  62                 return FALSE;
  63         }
  64
  65         if (ike_tkm_reset() != TKM_OK)
  66         {
  67                 tkmlib_final();
  68                 return FALSE;
  69         }
  70
  71         /* get limits from tkm */
  72         if (ike_tkm_limits(&max_requests, &nc, &dh, &cc, &ae, &isa, &esa) != TKM_OK)
  73         {
  74                 tkmlib_final();
  75                 return FALSE;
  76         }
  77
  78         /* only nonce and DH context limits are currently needed */
  79         const tkm_limits_t limits = {nc, dh};
  80
  81         INIT(this,
  82                 .public = {
  83                         .idmgr = tkm_id_manager_create(limits),
  84                         .chunk_map = tkm_chunk_map_create(),
  85                 },
  86         );
  87         tkm = &this->public;
  88
  89         return TRUE;
  90 }
  91
  92 /**
  93  * Described in header.
  94  */
  95 void tkm_deinit()
  96 {
  97         if (!tkm)
  98         {
  99                 return;
 100         }
 101         private_tkm_t *this = (private_tkm_t*)tkm;
 102         this->public.idmgr->destroy(this->public.idmgr);
 103         this->public.chunk_map->destroy(this->public.chunk_map);
 104
 105         tkmlib_final();
 106         free(this);
 107         tkm = NULL;
 108 }