src/libimcv/plugins/imv_os/imv_os_state.c

   1 /*
   2  * Copyright (C) 2012 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 "imv_os_state.h"
  17
  18 #include <utils/debug.h>
  19
  20 typedef struct private_imv_os_state_t private_imv_os_state_t;
  21
  22 /**
  23  * Private data of an imv_os_state_t object.
  24  */
  25 struct private_imv_os_state_t {
  26
  27         /**
  28          * Public members of imv_os_state_t
  29          */
  30         imv_os_state_t public;
  31
  32         /**
  33          * TNCCS connection ID
  34          */
  35         TNC_ConnectionID connection_id;
  36
  37         /**
  38          * TNCCS connection state
  39          */
  40         TNC_ConnectionState state;
  41
  42         /**
  43          * Does the TNCCS connection support long message types?
  44          */
  45         bool has_long;
  46
  47         /**
  48          * Does the TNCCS connection support exclusive delivery?
  49          */
  50         bool has_excl;
  51
  52         /**
  53          * Maximum PA-TNC message size for this TNCCS connection
  54          */
  55         u_int32_t max_msg_len;
  56
  57         /**
  58          * IMV action recommendation
  59          */
  60         TNC_IMV_Action_Recommendation rec;
  61
  62         /**
  63          * IMV evaluation result
  64          */
  65         TNC_IMV_Evaluation_Result eval;
  66
  67         /**
  68          * OS Product Information (concatenation of OS Name and Version)
  69          */
  70         char *info;
  71
  72         /**
  73          * OS Type
  74          */
  75         os_type_t type;
  76
  77         /**
  78          * OS Name
  79          */
  80         chunk_t name;
  81
  82         /**
  83          * OS Version
  84          */
  85         chunk_t version;
  86
  87         /**
  88          * OS Installed Package request sent - mandatory response expected
  89          */
  90         bool package_request;
  91
  92         /**
  93          * Angel count
  94          */
  95         int angel_count;
  96
  97 };
  98
  99 typedef struct entry_t entry_t;
 100
 101 /**
 102  * Define an internal reason string entry
 103  */
 104 struct entry_t {
 105         char *lang;
 106         char *string;
 107 };
 108
 109 /**
 110  * Table of multi-lingual reason string entries
 111  */
 112 static entry_t reasons[] = {
 113         { "en", "" },
 114         { "de", "" },
 115         { "fr", "" },
 116         { "pl", "" }
 117 };
 118
 119 METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
 120         private_imv_os_state_t *this)
 121 {
 122         return this->connection_id;
 123 }
 124
 125 METHOD(imv_state_t, has_long, bool,
 126         private_imv_os_state_t *this)
 127 {
 128         return this->has_long;
 129 }
 130
 131 METHOD(imv_state_t, has_excl, bool,
 132         private_imv_os_state_t *this)
 133 {
 134         return this->has_excl;
 135 }
 136
 137 METHOD(imv_state_t, set_flags, void,
 138         private_imv_os_state_t *this, bool has_long, bool has_excl)
 139 {
 140         this->has_long = has_long;
 141         this->has_excl = has_excl;
 142 }
 143
 144 METHOD(imv_state_t, set_max_msg_len, void,
 145         private_imv_os_state_t *this, u_int32_t max_msg_len)
 146 {
 147         this->max_msg_len = max_msg_len;
 148 }
 149
 150 METHOD(imv_state_t, get_max_msg_len, u_int32_t,
 151         private_imv_os_state_t *this)
 152 {
 153         return this->max_msg_len;
 154 }
 155
 156 METHOD(imv_state_t, change_state, void,
 157         private_imv_os_state_t *this, TNC_ConnectionState new_state)
 158 {
 159         this->state = new_state;
 160 }
 161
 162 METHOD(imv_state_t, get_recommendation, void,
 163         private_imv_os_state_t *this, TNC_IMV_Action_Recommendation *rec,
 164                                                                         TNC_IMV_Evaluation_Result *eval)
 165 {
 166         *rec = this->rec;
 167         *eval = this->eval;
 168 }
 169
 170 METHOD(imv_state_t, set_recommendation, void,
 171         private_imv_os_state_t *this, TNC_IMV_Action_Recommendation rec,
 172                                                                         TNC_IMV_Evaluation_Result eval)
 173 {
 174         this->rec = rec;
 175         this->eval = eval;
 176 }
 177
 178 METHOD(imv_state_t, get_reason_string, bool,
 179         private_imv_os_state_t *this, chunk_t preferred_language,
 180         chunk_t *reason_string, chunk_t *reason_language)
 181 {
 182         return FALSE;
 183 }
 184
 185 METHOD(imv_state_t, destroy, void,
 186         private_imv_os_state_t *this)
 187 {
 188         free(this->info);
 189         free(this->name.ptr);
 190         free(this->version.ptr);
 191         free(this);
 192 }
 193
 194 METHOD(imv_os_state_t, set_info, void,
 195         private_imv_os_state_t *this, os_type_t type, chunk_t name, chunk_t version)
 196 {
 197         int len = name.len + 1 + version.len + 1;
 198
 199         /* OS info is a concatenation of OS name and OS version */
 200         free(this->info);
 201         this->info = malloc(len);
 202         snprintf(this->info, len, "%.*s %.*s", name.len, name.ptr,
 203                                                                                    version.len, version.ptr);
 204         this->type = type;
 205         this->name = chunk_clone(name);
 206         this->version = chunk_clone(version);
 207 }
 208
 209 METHOD(imv_os_state_t, get_info, char*,
 210         private_imv_os_state_t *this, os_type_t *type, chunk_t *name,
 211         chunk_t *version)
 212 {
 213         if (type)
 214         {
 215                 *type = this->type;
 216         }
 217         if (name)
 218         {
 219                 *name = this->name;
 220         }
 221         if (version)
 222         {
 223                 *version = this->version;
 224         }
 225         return this->info;
 226 }
 227
 228 METHOD(imv_os_state_t, get_type, os_type_t,
 229         private_imv_os_state_t *this)
 230 {
 231         return this->type;
 232 }
 233
 234 METHOD(imv_os_state_t, set_package_request, void,
 235         private_imv_os_state_t *this, bool set)
 236 {
 237         this->package_request = set;
 238 }
 239
 240 METHOD(imv_os_state_t, get_package_request, bool,
 241         private_imv_os_state_t *this)
 242 {
 243         return this->package_request;
 244 }
 245
 246 METHOD(imv_os_state_t, set_angel_count, void,
 247         private_imv_os_state_t *this, bool start)
 248 {
 249         this->angel_count += start ? 1 : -1;
 250 }
 251
 252 METHOD(imv_os_state_t, get_angel_count, int,
 253         private_imv_os_state_t *this)
 254 {
 255         return this->angel_count;
 256 }
 257
 258 /**
 259  * Described in header.
 260  */
 261 imv_state_t *imv_os_state_create(TNC_ConnectionID connection_id)
 262 {
 263         private_imv_os_state_t *this;
 264
 265         INIT(this,
 266                 .public = {
 267                         .interface = {
 268                                 .get_connection_id = _get_connection_id,
 269                                 .has_long = _has_long,
 270                                 .has_excl = _has_excl,
 271                                 .set_flags = _set_flags,
 272                                 .set_max_msg_len = _set_max_msg_len,
 273                                 .get_max_msg_len = _get_max_msg_len,
 274                                 .change_state = _change_state,
 275                                 .get_recommendation = _get_recommendation,
 276                                 .set_recommendation = _set_recommendation,
 277                                 .get_reason_string = _get_reason_string,
 278                                 .destroy = _destroy,
 279                         },
 280                         .set_info = _set_info,
 281                         .get_info = _get_info,
 282                         .set_package_request = _set_package_request,
 283                         .get_package_request = _get_package_request,
 284                         .set_angel_count = _set_angel_count,
 285                         .get_angel_count = _get_angel_count,
 286                 },
 287                 .state = TNC_CONNECTION_STATE_CREATE,
 288                 .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
 289                 .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
 290                 .connection_id = connection_id,
 291         );
 292
 293         return &this->public.interface;
 294 }
 295
 296