src/modules/extra/m_ssl_openssl.cpp

   1 #include <string>
   2 #include <vector>
   3
   4 #include <openssl/ssl.h>
   5 #include <openssl/err.h>
   6
   7 #include "inspircd_config.h"
   8 #include "configreader.h"
   9 #include "users.h"
  10 #include "channels.h"
  11 #include "modules.h"
  12 #include "helperfuncs.h"
  13 #include "socket.h"
  14 #include "hashcomp.h"
  15
  16 /* $ModDesc: Provides SSL support for clients */
  17 /* $CompileFlags: -I/usr/include -I/usr/local/include */
  18 /* $LinkerFlags: -L/usr/local/lib -Wl,--rpath -Wl,/usr/local/lib -L/usr/lib -Wl,--rpath -Wl,/usr/lib -lssl */
  19
  20 enum issl_status { ISSL_NONE, ISSL_HANDSHAKING, ISSL_OPEN };
  21 enum issl_io_status { ISSL_WRITE, ISSL_READ };
  22
  23 bool isin(int port, const std::vector<int> &portlist)
  24 {
  25         for(unsigned int i = 0; i < portlist.size(); i++)
  26                 if(portlist[i] == port)
  27                         return true;
  28
  29         return false;
  30 }
  31
  32 char* get_error()
  33 {
  34         return ERR_error_string(ERR_get_error(), NULL);
  35 }
  36
  37 class issl_session
  38 {
  39 public:
  40         SSL* sess;
  41         issl_status status;
  42         issl_io_status rstat;
  43         issl_io_status wstat;
  44
  45         unsigned int inbufoffset;
  46         char* inbuf;                    // Buffer OpenSSL reads into.
  47         std::string outbuf;     // Buffer for outgoing data that OpenSSL will not take.
  48         int fd;
  49
  50         issl_session()
  51         {
  52                 rstat = ISSL_READ;
  53                 wstat = ISSL_WRITE;
  54         }
  55 };
  56
  57 class ModuleSSLOpenSSL : public Module
  58 {
  59         Server* Srv;
  60         ServerConfig* SrvConf;
  61         ConfigReader* Conf;
  62
  63         CullList culllist;
  64
  65         std::vector<int> listenports;
  66
  67         int inbufsize;
  68         issl_session sessions[MAX_DESCRIPTORS];
  69
  70         SSL_CTX* ctx;
  71
  72         std::string keyfile;
  73         std::string certfile;
  74         std::string cafile;
  75         // std::string crlfile;
  76         std::string dhfile;
  77
  78  public:
  79
  80         ModuleSSLOpenSSL(Server* Me)
  81                 : Module::Module(Me)
  82         {
  83                 Srv = Me;
  84                 SrvConf = Srv->GetConfig();
  85
  86                 // Not rehashable...because I cba to reduce all the sizes of existing buffers.
  87                 inbufsize = SrvConf->NetBufferSize;
  88
  89                 /* Global SSL library initialization*/
  90                 SSL_library_init();
  91                 SSL_load_error_strings();
  92
  93                 /* Build our SSL context*/
  94                 ctx = SSL_CTX_new( SSLv23_server_method() );
  95
  96                 // Needs the flag as it ignores a plain /rehash
  97                 OnRehash("ssl");
  98         }
  99
 100         virtual void OnRehash(const std::string &param)
 101         {
 102                 if(param != "ssl")
 103                         return;
 104
 105                 Conf = new ConfigReader;
 106
 107                 for(unsigned int i = 0; i < listenports.size(); i++)
 108                 {
 109                         SrvConf->DelIOHook(listenports[i]);
 110                 }
 111
 112                 listenports.clear();
 113
 114                 for(int i = 0; i < Conf->Enumerate("bind"); i++)
 115                 {
 116                         // For each <bind> tag
 117                         if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "openssl"))
 118                         {
 119                                 // Get the port we're meant to be listening on with SSL
 120                                 unsigned int port = Conf->ReadInteger("bind", "port", i, true);
 121                                 if(SrvConf->AddIOHook(port, this))
 122                                 {
 123                                         // We keep a record of which ports we're listening on with SSL
 124                                         listenports.push_back(port);
 125
 126                                         log(DEFAULT, "m_ssl_openssl.so: Enabling SSL for port %d", port);
 127                                 }
 128                                 else
 129                                 {
 130                                         log(DEFAULT, "m_ssl_openssl.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", port);
 131                                 }
 132                         }
 133                 }
 134
 135                 std::string confdir(CONFIG_FILE);
 136                 // +1 so we the path ends with a /
 137                 confdir = confdir.substr(0, confdir.find_last_of('/') + 1);
 138
 139                 cafile  = Conf->ReadValue("openssl", "cafile", 0);
 140                 // crlfile      = Conf->ReadValue("openssl", "crlfile", 0);
 141                 certfile        = Conf->ReadValue("openssl", "certfile", 0);
 142                 keyfile = Conf->ReadValue("openssl", "keyfile", 0);
 143                 dhfile  = Conf->ReadValue("openssl", "dhfile", 0);
 144
 145                 // Set all the default values needed.
 146                 if(cafile == "")
 147                         cafile = "ca.pem";
 148
 149                 //if(crlfile == "")
 150                 //      crlfile = "crl.pem";
 151
 152                 if(certfile == "")
 153                         certfile = "cert.pem";
 154
 155                 if(keyfile == "")
 156                         keyfile = "key.pem";
 157
 158                 if(dhfile == "")
 159                         dhfile = "dhparams.pem";
 160
 161                 // Prepend relative paths with the path to the config directory.
 162                 if(cafile[0] != '/')
 163                         cafile = confdir + cafile;
 164
 165                 //if(crlfile[0] != '/')
 166                 //      crlfile = confdir + crlfile;
 167
 168                 if(certfile[0] != '/')
 169                         certfile = confdir + certfile;
 170
 171                 if(keyfile[0] != '/')
 172                         keyfile = confdir + keyfile;
 173
 174                 if(dhfile[0] != '/')
 175                         dhfile = confdir + dhfile;
 176
 177                 /* Load our keys and certificates*/
 178                 if(!SSL_CTX_use_certificate_chain_file(ctx, certfile.c_str()))
 179                 {
 180                         log(DEFAULT, "m_ssl_openssl.so: Can't read certificate file %s", certfile.c_str());
 181                 }
 182
 183                 if(!SSL_CTX_use_PrivateKey_file(ctx, keyfile.c_str(), SSL_FILETYPE_PEM))
 184                 {
 185                         log(DEFAULT, "m_ssl_openssl.so: Can't read key file %s", keyfile.c_str());
 186                 }
 187
 188                 /* Load the CAs we trust*/
 189                 if(!SSL_CTX_load_verify_locations(ctx, cafile.c_str(), 0))
 190                 {
 191                         log(DEFAULT, "m_ssl_openssl.so: Can't read CA list from ", cafile.c_str());
 192                 }
 193
 194                 FILE* dhpfile = fopen(dhfile.c_str(), "r");
 195                 DH* ret;
 196
 197                 if(dhpfile == NULL)
 198                 {
 199                         log(DEFAULT, "m_ssl_openssl.so Couldn't open DH file %s: %s", dhfile.c_str(), strerror(errno));
 200                         throw ModuleException();
 201                 }
 202                 else
 203                 {
 204                         ret = PEM_read_DHparams(dhpfile, NULL, NULL, NULL);
 205
 206                         if(SSL_CTX_set_tmp_dh(ctx, ret) < 0)
 207                         {
 208                                 log(DEFAULT, "m_ssl_openssl.so: Couldn't set DH parameters");
 209                         }
 210                 }
 211
 212                 fclose(dhpfile);
 213
 214                 DELETE(Conf);
 215         }
 216
 217         virtual ~ModuleSSLOpenSSL()
 218         {
 219                 SSL_CTX_free(ctx);
 220         }
 221
 222         virtual void OnCleanup(int target_type, void* item)
 223         {
 224                 if(target_type == TYPE_USER)
 225                 {
 226                         userrec* user = (userrec*)item;
 227
 228                         if(user->GetExt("ssl") && IS_LOCAL(user) && isin(user->port, listenports))
 229                         {
 230                                 // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
 231                                 // Potentially there could be multiple SSL modules loaded at once on different ports.
 232                                 log(DEBUG, "m_ssl_openssl.so: Adding user %s to cull list", user->nick);
 233                                 culllist.AddItem(user, "SSL module unloading");
 234                         }
 235                 }
 236         }
 237
 238         virtual void OnUnloadModule(Module* mod, const std::string &name)
 239         {
 240                 if(mod == this)
 241                 {
 242                         // We're being unloaded, kill all the users added to the cull list in OnCleanup
 243                         int numusers = culllist.Apply();
 244                         log(DEBUG, "m_ssl_openssl.so: Killed %d users for unload of OpenSSL SSL module", numusers);
 245
 246                         for(unsigned int i = 0; i < listenports.size(); i++)
 247                                 SrvConf->DelIOHook(listenports[i]);
 248                 }
 249         }
 250
 251         virtual Version GetVersion()
 252         {
 253                 return Version(1, 0, 0, 0, VF_VENDOR);
 254         }
 255
 256         void Implements(char* List)
 257         {
 258                 List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
 259                 List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnGlobalConnect] = 1;
 260         }
 261
 262         virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
 263         {
 264                 issl_session* session = &sessions[fd];
 265
 266                 session->fd = fd;
 267                 session->inbuf = new char[inbufsize];
 268                 session->inbufoffset = 0;
 269                 session->sess = SSL_new(ctx);
 270                 session->status = ISSL_NONE;
 271
 272                 if(session->sess == NULL)
 273                 {
 274                         log(DEBUG, "m_ssl.so: Couldn't create SSL object: %s", get_error());
 275                         return;
 276                 }
 277
 278                 if(SSL_set_fd(session->sess, fd) == 0)
 279                 {
 280                         log(DEBUG, "m_ssl.so: Couldn't set fd for SSL object: %s", get_error());
 281                         return;
 282                 }
 283
 284                 Handshake(session);
 285         }
 286
 287         virtual void OnRawSocketClose(int fd)
 288         {
 289                 log(DEBUG, "m_ssl_openssl.so: OnRawSocketClose: %d", fd);
 290                 CloseSession(&sessions[fd]);
 291         }
 292
 293         virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
 294         {
 295                 issl_session* session = &sessions[fd];
 296
 297                 if(!session->sess)
 298                 {
 299                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: No session to read from");
 300                         readresult = 0;
 301                         CloseSession(session);
 302                         return 1;
 303                 }
 304
 305                 log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead(%d, buffer, %u, %d)", fd, count, readresult);
 306
 307                 if(session->status == ISSL_HANDSHAKING)
 308                 {
 309                         if(session->rstat == ISSL_READ || session->wstat == ISSL_READ)
 310                         {
 311                                 // The handshake isn't finished and it wants to read, try to finish it.
 312                                 if(Handshake(session))
 313                                 {
 314                                         // Handshake successfully resumed.
 315                                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: successfully resumed handshake");
 316                                 }
 317                                 else
 318                                 {
 319                                         // Couldn't resume handshake.
 320                                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: failed to resume handshake");
 321                                         return -1;
 322                                 }
 323                         }
 324                         else
 325                         {
 326                                 log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
 327                                 return -1;
 328                         }
 329                 }
 330
 331                 // If we resumed the handshake then session->status will be ISSL_OPEN
 332
 333                 if(session->status == ISSL_OPEN)
 334                 {
 335                         if(session->wstat == ISSL_READ)
 336                         {
 337                                 if(DoWrite(session) == 0)
 338                                         return 0;
 339                         }
 340
 341                         if(session->rstat == ISSL_READ)
 342                         {
 343                                 int ret = DoRead(session);
 344
 345                                 if(ret > 0)
 346                                 {
 347                                         if(count <= session->inbufoffset)
 348                                         {
 349                                                 memcpy(buffer, session->inbuf, count);
 350                                                 // Move the stuff left in inbuf to the beginning of it
 351                                                 memcpy(session->inbuf, session->inbuf + count, (session->inbufoffset - count));
 352                                                 // Now we need to set session->inbufoffset to the amount of data still waiting to be handed to insp.
 353                                                 session->inbufoffset -= count;
 354                                                 // Insp uses readresult as the count of how much data there is in buffer, so:
 355                                                 readresult = count;
 356                                         }
 357                                         else
 358                                         {
 359                                                 // There's not as much in the inbuf as there is space in the buffer, so just copy the whole thing.
 360                                                 memcpy(buffer, session->inbuf, session->inbufoffset);
 361
 362                                                 readresult = session->inbufoffset;
 363                                                 // Zero the offset, as there's nothing there..
 364                                                 session->inbufoffset = 0;
 365                                         }
 366
 367                                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: Passing %d bytes up to insp:", count);
 368                                         Srv->Log(DEBUG, std::string(buffer, readresult));
 369
 370                                         return 1;
 371                                 }
 372                                 else
 373                                 {
 374                                         return ret;
 375                                 }
 376                         }
 377                 }
 378
 379                 return -1;
 380         }
 381
 382         virtual int OnRawSocketWrite(int fd, char* buffer, int count)
 383         {
 384                 issl_session* session = &sessions[fd];
 385
 386                 if(!session->sess)
 387                 {
 388                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: No session to write to");
 389                         CloseSession(session);
 390                         return 1;
 391                 }
 392
 393                 log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: Adding %d bytes to the outgoing buffer", count);
 394                 session->outbuf.append(buffer, count);
 395
 396                 if(session->status == ISSL_HANDSHAKING)
 397                 {
 398                         // The handshake isn't finished, try to finish it.
 399                         if(session->rstat == ISSL_WRITE || session->wstat == ISSL_WRITE)
 400                         {
 401                                 if(Handshake(session))
 402                                 {
 403                                         // Handshake successfully resumed.
 404                                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: successfully resumed handshake");
 405                                 }
 406                                 else
 407                                 {
 408                                         // Couldn't resume handshake.
 409                                         log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: failed to resume handshake");
 410                                 }
 411                         }
 412                         else
 413                         {
 414                                 log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");
 415                         }
 416                 }
 417
 418                 if(session->status == ISSL_OPEN)
 419                 {
 420                         if(session->rstat == ISSL_WRITE)
 421                         {
 422                                 DoRead(session);
 423                         }
 424
 425                         if(session->wstat == ISSL_WRITE)
 426                         {
 427                                 return DoWrite(session);
 428                         }
 429                 }
 430
 431                 return 1;
 432         }
 433
 434         int DoWrite(issl_session* session)
 435         {
 436                 log(DEBUG, "m_ssl_openssl.so: DoWrite: Trying to write %d bytes:", session->outbuf.size());
 437                 Srv->Log(DEBUG, session->outbuf);
 438
 439                 int ret = SSL_write(session->sess, session->outbuf.data(), session->outbuf.size());
 440
 441                 if(ret == 0)
 442                 {
 443                         log(DEBUG, "m_ssl_openssl.so: DoWrite: Client closed the connection");
 444                         CloseSession(session);
 445                         return 0;
 446                 }
 447                 else if(ret < 0)
 448                 {
 449                         int err = SSL_get_error(session->sess, ret);
 450
 451                         if(err == SSL_ERROR_WANT_WRITE)
 452                         {
 453                                 log(DEBUG, "m_ssl_openssl.so: DoWrite: Not all SSL data written, need to retry: %s", get_error());
 454                                 session->wstat = ISSL_WRITE;
 455                                 return -1;
 456                         }
 457                         else if(err == SSL_ERROR_WANT_READ)
 458                         {
 459                                 log(DEBUG, "m_ssl_openssl.so: DoWrite: Not all SSL data written but the damn thing wants to read instead: %s", get_error());
 460                                 session->wstat = ISSL_READ;
 461                                 return -1;
 462                         }
 463                         else
 464                         {
 465                                 log(DEBUG, "m_ssl_openssl.so: DoWrite: Error writing SSL data: %s", get_error());
 466                                 CloseSession(session);
 467                                 return 0;
 468                         }
 469                 }
 470                 else
 471                 {
 472                         log(DEBUG, "m_ssl_openssl.so: DoWrite: Successfully wrote %d bytes", ret);
 473                         session->outbuf = session->outbuf.substr(ret);
 474                         return ret;
 475                 }
 476         }
 477
 478         int DoRead(issl_session* session)
 479         {
 480                 // Is this right? Not sure if the unencrypted data is garaunteed to be the same length.
 481                 // Read into the inbuffer, offset from the beginning by the amount of data we have that insp hasn't taken yet.
 482                 log(DEBUG, "m_ssl_openssl.so: DoRead: SSL_read(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
 483
 484                 int ret = SSL_read(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 485
 486                 if(ret == 0)
 487                 {
 488                         // Client closed connection.
 489                         log(DEBUG, "m_ssl_openssl.so: DoRead: Client closed the connection");
 490                         CloseSession(session);
 491                         return 0;
 492                 }
 493                 else if(ret < 0)
 494                 {
 495                         int err = SSL_get_error(session->sess, ret);
 496
 497                         if(err == SSL_ERROR_WANT_READ)
 498                         {
 499                                 log(DEBUG, "m_ssl_openssl.so: DoRead: Not all SSL data read, need to retry: %s", get_error());
 500                                 session->rstat = ISSL_READ;
 501                                 return -1;
 502                         }
 503                         else if(err == SSL_ERROR_WANT_WRITE)
 504                         {
 505                                 log(DEBUG, "m_ssl_openssl.so: DoRead: Not all SSL data read but the damn thing wants to write instead: %s", get_error());
 506                                 session->rstat = ISSL_WRITE;
 507                                 return -1;
 508                         }
 509                         else
 510                         {
 511                                 log(DEBUG, "m_ssl_openssl.so: DoRead: Error reading SSL data: %s", get_error());
 512                                 CloseSession(session);
 513                                 return 0;
 514                         }
 515                 }
 516                 else
 517                 {
 518                         // Read successfully 'ret' bytes into inbuf + inbufoffset
 519                         // There are 'ret' + 'inbufoffset' bytes of data in 'inbuf'
 520                         // 'buffer' is 'count' long
 521
 522                         log(DEBUG, "m_ssl_openssl.so: DoRead: Read %d bytes, now have %d waiting to be passed up", ret, ret + session->inbufoffset);
 523
 524                         session->inbufoffset += ret;
 525
 526                         return ret;
 527                 }
 528         }
 529
 530         // :kenny.chatspike.net 320 Om Epy|AFK :is a Secure Connection
 531         virtual void OnWhois(userrec* source, userrec* dest)
 532         {
 533                 // Bugfix, only send this numeric for *our* SSL users
 534                 if(dest->GetExt("ssl") || (IS_LOCAL(dest) &&  isin(dest->port, listenports)))
 535                 {
 536                         WriteServ(source->fd, "320 %s %s :is using a secure connection", source->nick, dest->nick);
 537                 }
 538         }
 539
 540         virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
 541         {
 542                 // check if the linking module wants to know about OUR metadata
 543                 if(extname == "ssl")
 544                 {
 545                         // check if this user has an swhois field to send
 546                         if(user->GetExt(extname))
 547                         {
 548                                 // call this function in the linking module, let it format the data how it
 549                                 // sees fit, and send it on its way. We dont need or want to know how.
 550                                 proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, "ON");
 551                         }
 552                 }
 553         }
 554
 555         virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
 556         {
 557                 // check if its our metadata key, and its associated with a user
 558                 if ((target_type == TYPE_USER) && (extname == "ssl"))
 559                 {
 560                         userrec* dest = (userrec*)target;
 561                         // if they dont already have an ssl flag, accept the remote server's
 562                         if (!dest->GetExt(extname))
 563                         {
 564                                 dest->Extend(extname, "ON");
 565                         }
 566                 }
 567         }
 568
 569         bool Handshake(issl_session* session)
 570         {
 571                 int ret = SSL_accept(session->sess);
 572
 573                 if(ret < 0)
 574                 {
 575                         int err = SSL_get_error(session->sess, ret);
 576
 577                         if(err == SSL_ERROR_WANT_READ)
 578                         {
 579                                 log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to read again: %s", get_error());
 580                                 session->rstat = ISSL_READ;
 581                                 session->status = ISSL_HANDSHAKING;
 582                         }
 583                         else if(err == SSL_ERROR_WANT_WRITE)
 584                         {
 585                                 log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to write more data: %s", get_error());
 586                                 session->wstat = ISSL_WRITE;
 587                                 session->status = ISSL_HANDSHAKING;
 588                                 MakePollWrite(session);
 589                         }
 590                         else
 591                         {
 592                                 log(DEBUG, "m_ssl_openssl.so: Handshake: Failed, bailing: %s", get_error());
 593                                 CloseSession(session);
 594                         }
 595
 596                         return false;
 597                 }
 598                 else
 599                 {
 600                         // Handshake complete.
 601                         log(DEBUG, "m_ssl_openssl.so: Handshake completed");
 602
 603                         // This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
 604                         userrec* u = Srv->FindDescriptor(session->fd);
 605                         if (u)
 606                         {
 607                                 if (!u->GetExt("ssl"))
 608                                         u->Extend("ssl", "ON");
 609                         }
 610
 611                         session->status = ISSL_OPEN;
 612
 613                         MakePollWrite(session);
 614
 615                         return true;
 616                 }
 617         }
 618
 619         virtual void OnGlobalConnect(userrec* user)
 620         {
 621                 // This occurs AFTER OnUserConnect so we can be sure the
 622                 // protocol module has propogated the NICK message.
 623                 if ((user->GetExt("ssl")) && (IS_LOCAL(user)))
 624                 {
 625                         // Tell whatever protocol module we're using that we need to inform other servers of this metadata NOW.
 626                         std::deque<std::string>* metadata = new std::deque<std::string>;
 627                         metadata->push_back(user->nick);
 628                         metadata->push_back("ssl");             // The metadata id
 629                         metadata->push_back("ON");              // The value to send
 630                         Event* event = new Event((char*)metadata,(Module*)this,"send_metadata");
 631                         event->Send();                          // Trigger the event. We don't care what module picks it up.
 632                         DELETE(event);
 633                         DELETE(metadata);
 634                 }
 635         }
 636
 637         void MakePollWrite(issl_session* session)
 638         {
 639                 OnRawSocketWrite(session->fd, NULL, 0);
 640         }
 641
 642         void CloseSession(issl_session* session)
 643         {
 644                 if(session->sess)
 645                 {
 646                         SSL_shutdown(session->sess);
 647                         SSL_free(session->sess);
 648                 }
 649
 650                 if(session->inbuf)
 651                 {
 652                         delete[] session->inbuf;
 653                 }
 654
 655                 session->outbuf.clear();
 656                 session->inbuf = NULL;
 657                 session->sess = NULL;
 658                 session->status = ISSL_NONE;
 659         }
 660 };
 661
 662 class ModuleSSLOpenSSLFactory : public ModuleFactory
 663 {
 664  public:
 665         ModuleSSLOpenSSLFactory()
 666         {
 667         }
 668
 669         ~ModuleSSLOpenSSLFactory()
 670         {
 671         }
 672
 673         virtual Module * CreateModule(Server* Me)
 674         {
 675                 return new ModuleSSLOpenSSL(Me);
 676         }
 677 };
 678
 679
 680 extern "C" void * init_module( void )
 681 {
 682         return new ModuleSSLOpenSSLFactory;
 683 }