eibd/libserver/layer7.cpp

   1 /*
   2     EIBD eib bus access and management daemon
   3     Copyright (C) 2005-2008 Martin Koegler <mkoegler@auto.tuwien.ac.at>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 */
  19
  20 #include "apdu.h"
  21 #include "layer7.h"
  22
  23 Layer7_Broadcast::Layer7_Broadcast (Layer3 * l3, Trace * tr)
  24 {
  25   t = tr;
  26   TRACEPRINTF (t, 5, this, "L7Broadcast Open");
  27   l4 = new T_Broadcast (l3, tr, 0);
  28   if (!l4->init ())
  29     {
  30       delete l4;
  31       l4 = 0;
  32     }
  33 }
  34
  35 Layer7_Broadcast::~Layer7_Broadcast ()
  36 {
  37   TRACEPRINTF (t, 5, this, "L7Broadcast Close");
  38   if (l4)
  39     delete l4;
  40 }
  41
  42 bool Layer7_Broadcast::init ()
  43 {
  44   return l4 != 0;
  45 }
  46
  47 void
  48 Layer7_Broadcast::A_IndividualAddress_Write (eibaddr_t addr)
  49 {
  50   A_IndividualAddress_Write_PDU a;
  51   a.addr = addr;
  52   l4->Send (a.ToPacket ());
  53 }
  54
  55 Array < eibaddr_t >
  56   Layer7_Broadcast::A_IndividualAddress_Read (unsigned timeout)
  57 {
  58   Array < eibaddr_t > addrs;
  59   A_IndividualAddress_Read_PDU r;
  60   APDU *a;
  61   l4->Send (r.ToPacket ());
  62   pth_event_t t = pth_event (PTH_EVENT_TIME, pth_timeout (timeout, 0));
  63   while (pth_event_status (t) != PTH_STATUS_OCCURRED)
  64     {
  65       BroadcastComm *c = l4->Get (t);
  66       if (c)
  67         {
  68           a = APDU::fromPacket (c->data);
  69           if (a->isResponse (&r))
  70             {
  71               addrs.resize (addrs () + 1);
  72               addrs[addrs () - 1] = c->src;
  73             }
  74           delete a;
  75           delete c;
  76         }
  77     }
  78   pth_event_free (t, PTH_FREE_THIS);
  79   return addrs;
  80 }
  81
  82 Layer7_Connection::Layer7_Connection (Layer3 * l3, Trace * tr, eibaddr_t d)
  83 {
  84   t = tr;
  85   dest = d;
  86   l4 = new T_Connection (l3, tr, d);
  87   if (!l4->init ())
  88     {
  89       delete l4;
  90       l4 = 0;
  91     }
  92 }
  93
  94 Layer7_Connection::~Layer7_Connection ()
  95 {
  96   if (l4)
  97     delete l4;
  98 }
  99
 100 bool Layer7_Connection::init ()
 101 {
 102   return l4 != 0;
 103 }
 104
 105 void
 106 Layer7_Connection::A_Restart ()
 107 {
 108   A_Restart_PDU a;
 109   l4->Send (a.ToPacket ());
 110 }
 111
 112 APDU *
 113 Layer7_Connection::Request_Response (APDU * r)
 114 {
 115   APDU *a;
 116   CArray *c;
 117   l4->Send (r->ToPacket ());
 118   pth_event_t t = pth_event (PTH_EVENT_TIME, pth_timeout (6, 100));
 119   while (pth_event_status (t) != PTH_STATUS_OCCURRED)
 120     {
 121       c = l4->Get (t);
 122       if (c)
 123         {
 124           if (c->len () == 0)
 125             {
 126               delete c;
 127               pth_event_free (t, PTH_FREE_THIS);
 128               return 0;
 129             }
 130           a = APDU::fromPacket (*c);
 131           delete c;
 132           if (a->isResponse (r))
 133             {
 134               pth_event_free (t, PTH_FREE_THIS);
 135               return a;
 136             }
 137           delete a;
 138           pth_event_free (t, PTH_FREE_THIS);
 139           return 0;
 140         }
 141     }
 142   pth_event_free (t, PTH_FREE_THIS);
 143   return 0;
 144 }
 145
 146 int
 147 Layer7_Connection::A_Property_Read (uchar obj, uchar propertyid,
 148                                     uint16_t start, uchar count, CArray & erg)
 149 {
 150   A_PropertyValue_Read_PDU r;
 151   r.obj = obj;
 152   r.prop = propertyid;
 153   r.start = start & 0x0fff;
 154   r.count = count & 0x0f;
 155   APDU *a = Request_Response (&r);
 156   if (!a)
 157     return -1;
 158   A_PropertyValue_Response_PDU *a1 = (A_PropertyValue_Response_PDU *) a;
 159   erg = a1->data;
 160   delete a;
 161   return 0;
 162 }
 163
 164 int
 165 Layer7_Connection::A_Property_Write (uchar obj, uchar propertyid,
 166                                      uint16_t start, uchar count,
 167                                      const CArray & data, CArray & result)
 168 {
 169   A_PropertyValue_Write_PDU r;
 170   r.obj = obj;
 171   r.prop = propertyid;
 172   r.start = start & 0x0fff;
 173   r.count = count & 0x0f;
 174   r.data = data;
 175   APDU *a = Request_Response (&r);
 176   if (!a)
 177     return -1;
 178   A_PropertyValue_Response_PDU *a1 = (A_PropertyValue_Response_PDU *) a;
 179   result = a1->data;
 180   delete a;
 181   return 0;
 182 }
 183
 184 int
 185 Layer7_Connection::A_Property_Desc (uchar obj, uchar & property,
 186                                     uchar property_index, uchar & type,
 187                                     uint16_t & max_nr_elements,
 188                                     uchar & access)
 189 {
 190   A_PropertyDescription_Read_PDU r;
 191   r.obj = obj;
 192   r.prop = property;
 193   r.property_index = property_index;
 194   APDU *a = Request_Response (&r);
 195   if (!a)
 196     return -1;
 197   A_PropertyDescription_Response_PDU *a1 =
 198     (A_PropertyDescription_Response_PDU *) a;
 199   type = a1->type;
 200   max_nr_elements = a1->count;
 201   access = a1->access;
 202   property = a1->prop;
 203   delete a;
 204   return 0;
 205 }
 206
 207 int
 208 Layer7_Connection::A_Device_Descriptor_Read (uint16_t & maskver, uchar type)
 209 {
 210   A_DeviceDescriptor_Read_PDU r;
 211   r.type = type & 0x3f;
 212   APDU *a = Request_Response (&r);
 213   if (!a)
 214     return -1;
 215   A_DeviceDescriptor_Response_PDU *a1 = (A_DeviceDescriptor_Response_PDU *) a;
 216   maskver = a1->descriptor;
 217   delete a;
 218   return 0;
 219 }
 220
 221 int
 222 Layer7_Connection::A_ADC_Read (uchar channel, uchar readcount,
 223                                int16_t & value)
 224 {
 225   A_ADC_Read_PDU r;
 226   r.channel = channel & 0x3f;
 227   r.count = readcount;
 228   APDU *a = Request_Response (&r);
 229   if (!a)
 230     return -1;
 231   A_ADC_Response_PDU *a1 = (A_ADC_Response_PDU *) a;
 232   value = a1->val;
 233   delete a;
 234   return 0;
 235 }
 236
 237 int
 238 Layer7_Connection::A_Memory_Read (memaddr_t addr, uchar len, CArray & data)
 239 {
 240   A_Memory_Read_PDU r;
 241   r.addr = addr;
 242   r.count = len & 0x0f;
 243   APDU *a = Request_Response (&r);
 244   if (!a)
 245     return -1;
 246   A_Memory_Response_PDU *a1 = (A_Memory_Response_PDU *) a;
 247   data = a1->data;
 248   delete a;
 249   return 0;
 250 }
 251
 252 int
 253 Layer7_Connection::A_Memory_Write (memaddr_t addr, const CArray & data)
 254 {
 255   A_Memory_Write_PDU r;
 256   r.addr = addr;
 257   r.count = data () & 0x0f;
 258   r.data.set (data.array (), data () & 0x0f);
 259   l4->Send (r.ToPacket ());
 260   return 0;
 261 }
 262
 263 int
 264 Layer7_Connection::A_Authorize (eibkey_type key, uchar & level)
 265 {
 266   A_Authorize_Request_PDU r;
 267   r.key = key;
 268   APDU *a = Request_Response (&r);
 269   if (!a)
 270     return -1;
 271   A_Authorize_Response_PDU *a1 = (A_Authorize_Response_PDU *) a;
 272   level = a1->level;
 273   delete a;
 274   return 0;
 275 }
 276
 277 int
 278 Layer7_Connection::A_KeyWrite (eibkey_type key, uchar & level)
 279 {
 280   A_Key_Write_PDU r;
 281   r.key = key;
 282   r.level = level;
 283   APDU *a = Request_Response (&r);
 284   if (!a)
 285     return -1;
 286   A_Key_Response_PDU *a1 = (A_Key_Response_PDU *) a;
 287   level = a1->level;
 288   delete a;
 289   return 0;
 290 }
 291
 292 int
 293 Layer7_Connection::X_Property_Write (uchar obj, uchar propertyid,
 294                                      uint16_t start, uchar count,
 295                                      const CArray & data)
 296 {
 297   CArray d1;
 298   if (A_Property_Write (obj, propertyid, start, count, data, d1) == -1)
 299     return -1;
 300   if (A_Property_Read (obj, propertyid, start, count, d1) == -1)
 301     return -1;
 302   if (d1 != data)
 303     return -1;
 304   return 0;
 305 }
 306
 307 int
 308 Layer7_Connection::X_Memory_Write (memaddr_t addr, const CArray & data)
 309 {
 310   CArray d1;
 311   if (A_Memory_Write (addr, data) == -1)
 312     return -1;
 313   if (A_Memory_Read (addr, data (), d1) == -1)
 314     return -1;
 315   if (d1 != data)
 316     return -2;
 317   return 0;
 318 }
 319
 320 int
 321 Layer7_Connection::X_Memory_Write_Block (memaddr_t addr, const CArray & data)
 322 {
 323   CArray prev;
 324   int i, j, k, res = 0;
 325   const unsigned blocksize = 12;
 326   if (X_Memory_Read_Block (addr, data (), prev) == -1)
 327     return -1;
 328   for (i = 0; i < data (); i++)
 329     {
 330       if (data[i] == prev[i])
 331         continue;
 332       j = 0;
 333       while (data[i + j] != prev[i + j] && j < blocksize && i + j < data ())
 334         j++;
 335       k = X_Memory_Write (addr + i, CArray (data.array () + i, j));
 336       if (k == -1)
 337         return -1;
 338       if (k == -2)
 339         res = -2;
 340       i += j - 1;
 341     }
 342
 343   return res;
 344 }
 345
 346 int
 347 Layer7_Connection::X_Memory_Read_Block (memaddr_t addr, int len, CArray & erg)
 348 {
 349   unsigned blocksize = 12;
 350   CArray e;
 351   erg.resize (len);
 352   for (unsigned i = 0; i < len; i += blocksize)
 353     {
 354     rt:
 355       if (A_Memory_Read
 356           (addr + i, (len - i > blocksize ? blocksize : len - i), e) == -1)
 357         {
 358           if (blocksize == 12)
 359             {
 360               blocksize = 2;
 361               goto rt;
 362             }
 363           return -1;
 364         }
 365       erg.setpart (e, i);
 366     }
 367   return 0;
 368 }
 369
 370 int
 371 Layer7_Connection::A_Memory_Write_Block (memaddr_t addr, const CArray & data)
 372 {
 373   CArray prev;
 374   int i, j, k, res = 0;
 375   const unsigned blocksize = 12;
 376
 377   for (i = 0; i < data (); i += blocksize)
 378     {
 379       j = blocksize;
 380       if (i + j > data ())
 381         j = data () - i;
 382       k = A_Memory_Write (addr + i, CArray (data.array () + i, j));
 383       if (k == -1)
 384         return -1;
 385     }
 386
 387   return res;
 388 }