src/modules/extra/m_ssl_gnutls.cpp

   1 #include <string>
   2 #include <vector>
   3
   4 #include <gnutls/gnutls.h>
   5
   6 #include "inspircd_config.h"
   7 #include "configreader.h"
   8 #include "users.h"
   9 #include "channels.h"
  10 #include "modules.h"
  11 #include "helperfuncs.h"
  12 #include "socket.h"
  13 #include "hashcomp.h"
  14 #include "inspircd.h"
  15
  16 /* $ModDesc: Provides SSL support for clients */
  17 /* $CompileFlags: `libgnutls-config --cflags` */
  18 /* $LinkerFlags: `libgnutls-config --libs` `perl ../gnutls_rpath.pl` */
  19
  20 extern InspIRCd* ServerInstance;
  21
  22 enum issl_status { ISSL_NONE, ISSL_HANDSHAKING_READ, ISSL_HANDSHAKING_WRITE, ISSL_HANDSHAKEN, ISSL_CLOSING, ISSL_CLOSED };
  23
  24 bool isin(int port, const std::vector<int> &portlist)
  25 {
  26         for(unsigned int i = 0; i < portlist.size(); i++)
  27                 if(portlist[i] == port)
  28                         return true;
  29
  30         return false;
  31 }
  32
  33 class issl_session : public classbase
  34 {
  35 public:
  36         gnutls_session_t sess;
  37         issl_status status;
  38         std::string outbuf;
  39         int inbufoffset;
  40         char* inbuf;
  41         int fd;
  42 };
  43
  44 class ModuleSSLGnuTLS : public Module
  45 {
  46         Server* Srv;
  47         ConfigReader* Conf;
  48
  49         char* dummy;
  50
  51         CullList culllist;
  52
  53         std::vector<int> listenports;
  54
  55         int inbufsize;
  56         issl_session sessions[MAX_DESCRIPTORS];
  57
  58         gnutls_certificate_credentials x509_cred;
  59         gnutls_dh_params dh_params;
  60
  61         std::string keyfile;
  62         std::string certfile;
  63         std::string cafile;
  64         std::string crlfile;
  65         int dh_bits;
  66
  67  public:
  68
  69         ModuleSSLGnuTLS(Server* Me)
  70                 : Module::Module(Me)
  71         {
  72                 Srv = Me;
  73
  74                 // Not rehashable...because I cba to reduce all the sizes of existing buffers.
  75                 inbufsize = ServerInstance->Config->NetBufferSize;
  76
  77                 gnutls_global_init(); // This must be called once in the program
  78
  79                 if(gnutls_certificate_allocate_credentials(&x509_cred) != 0)
  80                         log(DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
  81
  82                 // Guessing return meaning
  83                 if(gnutls_dh_params_init(&dh_params) < 0)
  84                         log(DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
  85
  86                 // Needs the flag as it ignores a plain /rehash
  87                 OnRehash("ssl");
  88
  89                 // Void return, guess we assume success
  90                 gnutls_certificate_set_dh_params(x509_cred, dh_params);
  91         }
  92
  93         virtual void OnRehash(const std::string &param)
  94         {
  95                 if(param != "ssl")
  96                         return;
  97
  98                 Conf = new ConfigReader;
  99
 100                 for(unsigned int i = 0; i < listenports.size(); i++)
 101                 {
 102                         ServerInstance->Config->DelIOHook(listenports[i]);
 103                 }
 104
 105                 listenports.clear();
 106
 107                 for(int i = 0; i < Conf->Enumerate("bind"); i++)
 108                 {
 109                         // For each <bind> tag
 110                         if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "gnutls"))
 111                         {
 112                                 // Get the port we're meant to be listening on with SSL
 113                                 unsigned int port = Conf->ReadInteger("bind", "port", i, true);
 114                                 if (ServerInstance->Config->AddIOHook(port, this))
 115                                 {
 116                                         // We keep a record of which ports we're listening on with SSL
 117                                         listenports.push_back(port);
 118
 119                                         log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", port);
 120                                 }
 121                                 else
 122                                 {
 123                                         log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", port);
 124                                 }
 125                         }
 126                 }
 127
 128                 std::string confdir(CONFIG_FILE);
 129                 // +1 so we the path ends with a /
 130                 confdir = confdir.substr(0, confdir.find_last_of('/') + 1);
 131
 132                 cafile  = Conf->ReadValue("gnutls", "cafile", 0);
 133                 crlfile = Conf->ReadValue("gnutls", "crlfile", 0);
 134                 certfile        = Conf->ReadValue("gnutls", "certfile", 0);
 135                 keyfile = Conf->ReadValue("gnutls", "keyfile", 0);
 136                 dh_bits = Conf->ReadInteger("gnutls", "dhbits", 0, false);
 137
 138                 // Set all the default values needed.
 139                 if(cafile == "")
 140                         cafile = "ca.pem";
 141
 142                 if(crlfile == "")
 143                         crlfile = "crl.pem";
 144
 145                 if(certfile == "")
 146                         certfile = "cert.pem";
 147
 148                 if(keyfile == "")
 149                         keyfile = "key.pem";
 150
 151                 if((dh_bits != 768) && (dh_bits != 1024) && (dh_bits != 2048) && (dh_bits != 3072) && (dh_bits != 4096))
 152                         dh_bits = 1024;
 153
 154                 // Prepend relative paths with the path to the config directory.
 155                 if(cafile[0] != '/')
 156                         cafile = confdir + cafile;
 157
 158                 if(crlfile[0] != '/')
 159                         crlfile = confdir + crlfile;
 160
 161                 if(certfile[0] != '/')
 162                         certfile = confdir + certfile;
 163
 164                 if(keyfile[0] != '/')
 165                         keyfile = confdir + keyfile;
 166
 167                 if(gnutls_certificate_set_x509_trust_file(x509_cred, cafile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 168                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file: %s", cafile.c_str());
 169
 170                 if(gnutls_certificate_set_x509_crl_file (x509_cred, crlfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 171                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file: %s", crlfile.c_str());
 172
 173                 // Guessing on the return value of this, manual doesn't say :|
 174                 if(gnutls_certificate_set_x509_key_file (x509_cred, certfile.c_str(), keyfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 175                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 certificate and key files: %s and %s", certfile.c_str(), keyfile.c_str());
 176
 177                 // This may be on a large (once a day or week) timer eventually.
 178                 GenerateDHParams();
 179
 180                 DELETE(Conf);
 181         }
 182
 183         void GenerateDHParams()
 184         {
 185                 // Generate Diffie Hellman parameters - for use with DHE
 186                 // kx algorithms. These should be discarded and regenerated
 187                 // once a day, once a week or once a month. Depending on the
 188                 // security requirements.
 189
 190                 if(gnutls_dh_params_generate2(dh_params, dh_bits) < 0)
 191                         log(DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits)", dh_bits);
 192         }
 193
 194         virtual ~ModuleSSLGnuTLS()
 195         {
 196                 gnutls_dh_params_deinit(dh_params);
 197                 gnutls_certificate_free_credentials(x509_cred);
 198                 gnutls_global_deinit();
 199         }
 200
 201         virtual void OnCleanup(int target_type, void* item)
 202         {
 203                 if(target_type == TYPE_USER)
 204                 {
 205                         userrec* user = (userrec*)item;
 206
 207                         if(user->GetExt("ssl", dummy) && isin(user->GetPort(), listenports))
 208                         {
 209                                 // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
 210                                 // Potentially there could be multiple SSL modules loaded at once on different ports.
 211                                 log(DEBUG, "m_ssl_gnutls.so: Adding user %s to cull list", user->nick);
 212                                 culllist.AddItem(user, "SSL module unloading");
 213                         }
 214                 }
 215         }
 216
 217         virtual void OnUnloadModule(Module* mod, const std::string &name)
 218         {
 219                 if(mod == this)
 220                 {
 221                         // We're being unloaded, kill all the users added to the cull list in OnCleanup
 222                         int numusers = culllist.Apply();
 223                         log(DEBUG, "m_ssl_gnutls.so: Killed %d users for unload of GnuTLS SSL module", numusers);
 224
 225                         for(unsigned int i = 0; i < listenports.size(); i++)
 226                                 ServerInstance->Config->DelIOHook(listenports[i]);
 227                 }
 228         }
 229
 230         virtual Version GetVersion()
 231         {
 232                 return Version(1, 0, 0, 0, VF_VENDOR);
 233         }
 234
 235         void Implements(char* List)
 236         {
 237                 List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
 238                 List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnGlobalConnect] = 1;
 239         }
 240
 241         virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
 242         {
 243                 issl_session* session = &sessions[fd];
 244
 245                 session->fd = fd;
 246                 session->inbuf = new char[inbufsize];
 247                 session->inbufoffset = 0;
 248
 249                 gnutls_init(&session->sess, GNUTLS_SERVER);
 250
 251                 gnutls_set_default_priority(session->sess); // Avoid calling all the priority functions, defaults are adequate.
 252                 gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, x509_cred);
 253                 gnutls_certificate_server_set_request(session->sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
 254                 gnutls_dh_set_prime_bits(session->sess, dh_bits);
 255
 256                 /* This is an experimental change to avoid a warning on 64bit systems about casting between integer and pointer of different sizes
 257                  * This needs testing, but it's easy enough to rollback if need be
 258                  * Old: gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
 259                  * New: gnutls_transport_set_ptr(session->sess, &fd); // Give gnutls the fd for the socket.
 260                  *
 261                  * With testing this seems to...not work :/
 262                  */
 263
 264                 gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
 265
 266                 Handshake(session);
 267         }
 268
 269         virtual void OnRawSocketClose(int fd)
 270         {
 271                 log(DEBUG, "OnRawSocketClose: %d", fd);
 272                 CloseSession(&sessions[fd]);
 273         }
 274
 275         virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
 276         {
 277                 issl_session* session = &sessions[fd];
 278
 279                 if(!session->sess)
 280                 {
 281                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: No session to read from");
 282                         readresult = 0;
 283                         CloseSession(session);
 284                         return 1;
 285                 }
 286
 287                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead(%d, buffer, %u, %d)", fd, count, readresult);
 288
 289                 if(session->status == ISSL_HANDSHAKING_READ)
 290                 {
 291                         // The handshake isn't finished, try to finish it.
 292
 293                         if(Handshake(session))
 294                         {
 295                                 // Handshake successfully resumed.
 296                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: successfully resumed handshake");
 297                         }
 298                         else
 299                         {
 300                                 // Couldn't resume handshake.
 301                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: failed to resume handshake");
 302                                 return -1;
 303                         }
 304                 }
 305                 else if(session->status == ISSL_HANDSHAKING_WRITE)
 306                 {
 307                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
 308                         return -1;
 309                 }
 310
 311                 // If we resumed the handshake then session->status will be ISSL_HANDSHAKEN.
 312
 313                 if(session->status == ISSL_HANDSHAKEN)
 314                 {
 315                         // Is this right? Not sure if the unencrypted data is garaunteed to be the same length.
 316                         // Read into the inbuffer, offset from the beginning by the amount of data we have that insp hasn't taken yet.
 317                         log(DEBUG, "m_ssl_gnutls.so: gnutls_record_recv(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
 318
 319                         int ret = gnutls_record_recv(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 320
 321                         if(ret == 0)
 322                         {
 323                                 // Client closed connection.
 324                                 log(DEBUG, "m_ssl_gnutls.so: Client closed the connection");
 325                                 readresult = 0;
 326                                 CloseSession(session);
 327                                 return 1;
 328                         }
 329                         else if(ret < 0)
 330                         {
 331                                 if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 332                                 {
 333                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Not all SSL data read: %s", gnutls_strerror(ret));
 334                                         return -1;
 335                                 }
 336                                 else
 337                                 {
 338                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Error reading SSL data: %s", gnutls_strerror(ret));
 339                                         readresult = 0;
 340                                         CloseSession(session);
 341                                 }
 342                         }
 343                         else
 344                         {
 345                                 // Read successfully 'ret' bytes into inbuf + inbufoffset
 346                                 // There are 'ret' + 'inbufoffset' bytes of data in 'inbuf'
 347                                 // 'buffer' is 'count' long
 348
 349                                 unsigned int length = ret + session->inbufoffset;
 350
 351                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Read %d bytes, now have %d waiting to be passed up", ret, length);
 352
 353                                 if(count <= length)
 354                                 {
 355                                         memcpy(buffer, session->inbuf, count);
 356                                         // Move the stuff left in inbuf to the beginning of it
 357                                         memcpy(session->inbuf, session->inbuf + count, (length - count));
 358                                         // Now we need to set session->inbufoffset to the amount of data still waiting to be handed to insp.
 359                                         session->inbufoffset = length - count;
 360                                         // Insp uses readresult as the count of how much data there is in buffer, so:
 361                                         readresult = count;
 362                                 }
 363                                 else
 364                                 {
 365                                         // There's not as much in the inbuf as there is space in the buffer, so just copy the whole thing.
 366                                         memcpy(buffer, session->inbuf, length);
 367                                         // Zero the offset, as there's nothing there..
 368                                         session->inbufoffset = 0;
 369                                         // As above
 370                                         readresult = length;
 371                                 }
 372                         }
 373                 }
 374                 else if(session->status == ISSL_CLOSING)
 375                 {
 376                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: session closing...");
 377                         readresult = 0;
 378                 }
 379
 380                 return 1;
 381         }
 382
 383         virtual int OnRawSocketWrite(int fd, const char* buffer, int count)
 384         {
 385                 issl_session* session = &sessions[fd];
 386                 const char* sendbuffer = buffer;
 387
 388                 if(!session->sess)
 389                 {
 390                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: No session to write to");
 391                         CloseSession(session);
 392                         return 1;
 393                 }
 394
 395                 if(session->status == ISSL_HANDSHAKING_WRITE)
 396                 {
 397                         // The handshake isn't finished, try to finish it.
 398
 399                         if(Handshake(session))
 400                         {
 401                                 // Handshake successfully resumed.
 402                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: successfully resumed handshake");
 403                         }
 404                         else
 405                         {
 406                                 // Couldn't resume handshake.
 407                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: failed to resume handshake");
 408                         }
 409                 }
 410                 else if(session->status == ISSL_HANDSHAKING_READ)
 411                 {
 412                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");
 413                 }
 414
 415                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Adding %d bytes to the outgoing buffer", count);
 416                 session->outbuf.append(sendbuffer, count);
 417                 sendbuffer = session->outbuf.c_str();
 418                 count = session->outbuf.size();
 419
 420                 if(session->status == ISSL_HANDSHAKEN)
 421                 {
 422                         int ret = gnutls_record_send(session->sess, sendbuffer, count);
 423
 424                         if(ret == 0)
 425                         {
 426                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Client closed the connection");
 427                                 CloseSession(session);
 428                         }
 429                         else if(ret < 0)
 430                         {
 431                                 if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 432                                 {
 433                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Not all SSL data written: %s", gnutls_strerror(ret));
 434                                 }
 435                                 else
 436                                 {
 437                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Error writing SSL data: %s", gnutls_strerror(ret));
 438                                         CloseSession(session);
 439                                 }
 440                         }
 441                         else
 442                         {
 443                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Successfully wrote %d bytes", ret);
 444                                 session->outbuf = session->outbuf.substr(ret);
 445                         }
 446                 }
 447                 else if(session->status == ISSL_CLOSING)
 448                 {
 449                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: session closing...");
 450                 }
 451
 452                 return 1;
 453         }
 454
 455         // :kenny.chatspike.net 320 Om Epy|AFK :is a Secure Connection
 456         virtual void OnWhois(userrec* source, userrec* dest)
 457         {
 458                 // Bugfix, only send this numeric for *our* SSL users
 459                 if(dest->GetExt("ssl", dummy) || (IS_LOCAL(dest) &&  isin(dest->GetPort(), listenports)))
 460                 {
 461                         source->WriteServ("320 %s %s :is using a secure connection", source->nick, dest->nick);
 462                 }
 463         }
 464
 465         virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
 466         {
 467                 // check if the linking module wants to know about OUR metadata
 468                 if(extname == "ssl")
 469                 {
 470                         // check if this user has an swhois field to send
 471                         if(user->GetExt(extname, dummy))
 472                         {
 473                                 // call this function in the linking module, let it format the data how it
 474                                 // sees fit, and send it on its way. We dont need or want to know how.
 475                                 proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, "ON");
 476                         }
 477                 }
 478         }
 479
 480         virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
 481         {
 482                 // check if its our metadata key, and its associated with a user
 483                 if ((target_type == TYPE_USER) && (extname == "ssl"))
 484                 {
 485                         userrec* dest = (userrec*)target;
 486                         // if they dont already have an ssl flag, accept the remote server's
 487                         if (!dest->GetExt(extname, dummy))
 488                         {
 489                                 dest->Extend(extname, "ON");
 490                         }
 491                 }
 492         }
 493
 494         bool Handshake(issl_session* session)
 495         {
 496                 int ret = gnutls_handshake(session->sess);
 497
 498       if(ret < 0)
 499                 {
 500                         if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 501                         {
 502                                 // Handshake needs resuming later, read() or write() would have blocked.
 503
 504                                 if(gnutls_record_get_direction(session->sess) == 0)
 505                                 {
 506                                         // gnutls_handshake() wants to read() again.
 507                                         session->status = ISSL_HANDSHAKING_READ;
 508                                         log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (reading) later, error string: %s", gnutls_strerror(ret));
 509                                 }
 510                                 else
 511                                 {
 512                                         // gnutls_handshake() wants to write() again.
 513                                         session->status = ISSL_HANDSHAKING_WRITE;
 514                                         log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (writing) later, error string: %s", gnutls_strerror(ret));
 515                                         MakePollWrite(session);
 516                                 }
 517                         }
 518                         else
 519                         {
 520                                 // Handshake failed.
 521                                 CloseSession(session);
 522                            log(DEBUG, "m_ssl_gnutls.so: Handshake failed, error string: %s", gnutls_strerror(ret));
 523                            session->status = ISSL_CLOSING;
 524                         }
 525
 526                         return false;
 527                 }
 528                 else
 529                 {
 530                         // Handshake complete.
 531                         log(DEBUG, "m_ssl_gnutls.so: Handshake completed");
 532
 533                         // This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
 534                         userrec* extendme = Srv->FindDescriptor(session->fd);
 535                         if (extendme)
 536                         {
 537                                 if (!extendme->GetExt("ssl", dummy))
 538                                         extendme->Extend("ssl", "ON");
 539                         }
 540
 541                         // Change the seesion state
 542                         session->status = ISSL_HANDSHAKEN;
 543
 544                         // Finish writing, if any left
 545                         MakePollWrite(session);
 546
 547                         return true;
 548                 }
 549         }
 550
 551         virtual void OnGlobalConnect(userrec* user)
 552         {
 553                 // This occurs AFTER OnUserConnect so we can be sure the
 554                 // protocol module has propogated the NICK message.
 555                 if ((user->GetExt("ssl", dummy)) && (IS_LOCAL(user)))
 556                 {
 557                         // Tell whatever protocol module we're using that we need to inform other servers of this metadata NOW.
 558                         std::deque<std::string>* metadata = new std::deque<std::string>;
 559                         metadata->push_back(user->nick);
 560                         metadata->push_back("ssl");             // The metadata id
 561                         metadata->push_back("ON");              // The value to send
 562                         Event* event = new Event((char*)metadata,(Module*)this,"send_metadata");
 563                         event->Send();                          // Trigger the event. We don't care what module picks it up.
 564                         DELETE(event);
 565                         DELETE(metadata);
 566                 }
 567         }
 568
 569         void MakePollWrite(issl_session* session)
 570         {
 571                 OnRawSocketWrite(session->fd, NULL, 0);
 572         }
 573
 574         void CloseSession(issl_session* session)
 575         {
 576                 if(session->sess)
 577                 {
 578                         gnutls_bye(session->sess, GNUTLS_SHUT_WR);
 579                         gnutls_deinit(session->sess);
 580                 }
 581
 582                 if(session->inbuf)
 583                 {
 584                         delete[] session->inbuf;
 585                 }
 586
 587                 session->outbuf.clear();
 588                 session->inbuf = NULL;
 589                 session->sess = NULL;
 590                 session->status = ISSL_NONE;
 591         }
 592 };
 593
 594 class ModuleSSLGnuTLSFactory : public ModuleFactory
 595 {
 596  public:
 597         ModuleSSLGnuTLSFactory()
 598         {
 599         }
 600
 601         ~ModuleSSLGnuTLSFactory()
 602         {
 603         }
 604
 605         virtual Module * CreateModule(Server* Me)
 606         {
 607                 return new ModuleSSLGnuTLS(Me);
 608         }
 609 };
 610
 611
 612 extern "C" void * init_module( void )
 613 {
 614         return new ModuleSSLGnuTLSFactory;
 615 }