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
  15 /* $ModDesc: Provides SSL support for clients */
  16 /* $CompileFlags: `libgnutls-config --cflags` */
  17 /* $LinkerFlags: `libgnutls-config --libs` `perl ../gnutls_rpath.pl` */
  18
  19 enum issl_status { ISSL_NONE, ISSL_HANDSHAKING_READ, ISSL_HANDSHAKING_WRITE, ISSL_HANDSHAKEN, ISSL_CLOSING, ISSL_CLOSED };
  20
  21 bool isin(int port, const std::vector<int> &portlist)
  22 {
  23         for(unsigned int i = 0; i < portlist.size(); i++)
  24                 if(portlist[i] == port)
  25                         return true;
  26
  27         return false;
  28 }
  29
  30 class issl_session
  31 {
  32 public:
  33         gnutls_session_t sess;
  34         issl_status status;
  35         std::string outbuf;
  36         int inbufoffset;
  37         char* inbuf;
  38         int fd;
  39 };
  40
  41 class ModuleSSLGnuTLS : public Module
  42 {
  43         Server* Srv;
  44         ServerConfig* SrvConf;
  45         ConfigReader* Conf;
  46
  47         CullList culllist;
  48
  49         std::vector<int> listenports;
  50
  51         int inbufsize;
  52         issl_session sessions[MAX_DESCRIPTORS];
  53
  54         gnutls_certificate_credentials x509_cred;
  55         gnutls_dh_params dh_params;
  56
  57         std::string keyfile;
  58         std::string certfile;
  59         std::string cafile;
  60         std::string crlfile;
  61         int dh_bits;
  62
  63  public:
  64
  65         ModuleSSLGnuTLS(Server* Me)
  66                 : Module::Module(Me)
  67         {
  68                 Srv = Me;
  69                 SrvConf = Srv->GetConfig();
  70
  71                 // Not rehashable...because I cba to reduce all the sizes of existing buffers.
  72                 inbufsize = SrvConf->NetBufferSize;
  73
  74                 gnutls_global_init(); // This must be called once in the program
  75
  76                 if(gnutls_certificate_allocate_credentials(&x509_cred) != 0)
  77                         log(DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
  78
  79                 // Guessing return meaning
  80                 if(gnutls_dh_params_init(&dh_params) < 0)
  81                         log(DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
  82
  83                 // Needs the flag as it ignores a plain /rehash
  84                 OnRehash("ssl");
  85
  86                 // Void return, guess we assume success
  87                 gnutls_certificate_set_dh_params(x509_cred, dh_params);
  88         }
  89
  90         virtual void OnRehash(const std::string &param)
  91         {
  92                 if(param != "ssl")
  93                         return;
  94
  95                 Conf = new ConfigReader;
  96
  97                 for(unsigned int i = 0; i < listenports.size(); i++)
  98                 {
  99                         SrvConf->DelIOHook(listenports[i]);
 100                 }
 101
 102                 listenports.clear();
 103
 104                 for(int i = 0; i < Conf->Enumerate("bind"); i++)
 105                 {
 106                         // For each <bind> tag
 107                         if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "gnutls"))
 108                         {
 109                                 // Get the port we're meant to be listening on with SSL
 110                                 unsigned int port = Conf->ReadInteger("bind", "port", i, true);
 111                                 if(SrvConf->AddIOHook(port, this))
 112                                 {
 113                                         // We keep a record of which ports we're listening on with SSL
 114                                         listenports.push_back(port);
 115
 116                                         log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", port);
 117                                 }
 118                                 else
 119                                 {
 120                                         log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", port);
 121                                 }
 122                         }
 123                 }
 124
 125                 std::string confdir(CONFIG_FILE);
 126                 // +1 so we the path ends with a /
 127                 confdir = confdir.substr(0, confdir.find_last_of('/') + 1);
 128
 129                 cafile  = Conf->ReadValue("gnutls", "cafile", 0);
 130                 crlfile = Conf->ReadValue("gnutls", "crlfile", 0);
 131                 certfile        = Conf->ReadValue("gnutls", "certfile", 0);
 132                 keyfile = Conf->ReadValue("gnutls", "keyfile", 0);
 133                 dh_bits = Conf->ReadInteger("gnutls", "dhbits", 0, false);
 134
 135                 // Set all the default values needed.
 136                 if(cafile == "")
 137                         cafile = "ca.pem";
 138
 139                 if(crlfile == "")
 140                         crlfile = "crl.pem";
 141
 142                 if(certfile == "")
 143                         certfile = "cert.pem";
 144
 145                 if(keyfile == "")
 146                         keyfile = "key.pem";
 147
 148                 if((dh_bits != 768) && (dh_bits != 1024) && (dh_bits != 2048) && (dh_bits != 3072) && (dh_bits != 4096))
 149                         dh_bits = 1024;
 150
 151                 // Prepend relative paths with the path to the config directory.
 152                 if(cafile[0] != '/')
 153                         cafile = confdir + cafile;
 154
 155                 if(crlfile[0] != '/')
 156                         crlfile = confdir + crlfile;
 157
 158                 if(certfile[0] != '/')
 159                         certfile = confdir + certfile;
 160
 161                 if(keyfile[0] != '/')
 162                         keyfile = confdir + keyfile;
 163
 164                 if(gnutls_certificate_set_x509_trust_file(x509_cred, cafile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 165                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file: %s", cafile.c_str());
 166
 167                 if(gnutls_certificate_set_x509_crl_file (x509_cred, crlfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 168                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file: %s", crlfile.c_str());
 169
 170                 // Guessing on the return value of this, manual doesn't say :|
 171                 if(gnutls_certificate_set_x509_key_file (x509_cred, certfile.c_str(), keyfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 172                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 certificate and key files: %s and %s", certfile.c_str(), keyfile.c_str());
 173
 174                 // This may be on a large (once a day or week) timer eventually.
 175                 GenerateDHParams();
 176
 177                 DELETE(Conf);
 178         }
 179
 180         void GenerateDHParams()
 181         {
 182                 // Generate Diffie Hellman parameters - for use with DHE
 183                 // kx algorithms. These should be discarded and regenerated
 184                 // once a day, once a week or once a month. Depending on the
 185                 // security requirements.
 186
 187                 if(gnutls_dh_params_generate2(dh_params, dh_bits) < 0)
 188                         log(DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits)", dh_bits);
 189         }
 190
 191         virtual ~ModuleSSLGnuTLS()
 192         {
 193                 gnutls_dh_params_deinit(dh_params);
 194                 gnutls_certificate_free_credentials(x509_cred);
 195                 gnutls_global_deinit();
 196         }
 197
 198         virtual void OnCleanup(int target_type, void* item)
 199         {
 200                 if(target_type == TYPE_USER)
 201                 {
 202                         userrec* user = (userrec*)item;
 203
 204                         if(user->GetExt("ssl") && isin(user->port, listenports))
 205                         {
 206                                 // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
 207                                 // Potentially there could be multiple SSL modules loaded at once on different ports.
 208                                 log(DEBUG, "m_ssl_gnutls.so: Adding user %s to cull list", user->nick);
 209                                 culllist.AddItem(user, "SSL module unloading");
 210                         }
 211                 }
 212         }
 213
 214         virtual void OnUnloadModule(Module* mod, const std::string &name)
 215         {
 216                 if(mod == this)
 217                 {
 218                         // We're being unloaded, kill all the users added to the cull list in OnCleanup
 219                         int numusers = culllist.Apply();
 220                         log(DEBUG, "m_ssl_gnutls.so: Killed %d users for unload of GnuTLS SSL module", numusers);
 221
 222                         for(unsigned int i = 0; i < listenports.size(); i++)
 223                                 SrvConf->DelIOHook(listenports[i]);
 224                 }
 225         }
 226
 227         virtual Version GetVersion()
 228         {
 229                 return Version(1, 0, 0, 0, VF_VENDOR);
 230         }
 231
 232         void Implements(char* List)
 233         {
 234                 List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
 235                 List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnGlobalConnect] = 1;
 236         }
 237
 238         virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
 239         {
 240                 issl_session* session = &sessions[fd];
 241
 242                 session->fd = fd;
 243                 session->inbuf = new char[inbufsize];
 244                 session->inbufoffset = 0;
 245
 246                 gnutls_init(&session->sess, GNUTLS_SERVER);
 247
 248                 gnutls_set_default_priority(session->sess); // Avoid calling all the priority functions, defaults are adequate.
 249                 gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, x509_cred);
 250                 gnutls_certificate_server_set_request(session->sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
 251                 gnutls_dh_set_prime_bits(session->sess, dh_bits);
 252
 253                 /* This is an experimental change to avoid a warning on 64bit systems about casting between integer and pointer of different sizes
 254                  * This needs testing, but it's easy enough to rollback if need be
 255                  * Old: gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
 256                  * New: gnutls_transport_set_ptr(session->sess, &fd); // Give gnutls the fd for the socket.
 257                  *
 258                  * With testing this seems to...not work :/
 259                  */
 260
 261                 gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
 262
 263                 Handshake(session);
 264         }
 265
 266         virtual void OnRawSocketClose(int fd)
 267         {
 268                 log(DEBUG, "OnRawSocketClose: %d", fd);
 269                 CloseSession(&sessions[fd]);
 270         }
 271
 272         virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
 273         {
 274                 issl_session* session = &sessions[fd];
 275
 276                 if(!session->sess)
 277                 {
 278                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: No session to read from");
 279                         readresult = 0;
 280                         CloseSession(session);
 281                         return 1;
 282                 }
 283
 284                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead(%d, buffer, %u, %d)", fd, count, readresult);
 285
 286                 if(session->status == ISSL_HANDSHAKING_READ)
 287                 {
 288                         // The handshake isn't finished, try to finish it.
 289
 290                         if(Handshake(session))
 291                         {
 292                                 // Handshake successfully resumed.
 293                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: successfully resumed handshake");
 294                         }
 295                         else
 296                         {
 297                                 // Couldn't resume handshake.
 298                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: failed to resume handshake");
 299                                 return -1;
 300                         }
 301                 }
 302                 else if(session->status == ISSL_HANDSHAKING_WRITE)
 303                 {
 304                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
 305                         return -1;
 306                 }
 307
 308                 // If we resumed the handshake then session->status will be ISSL_HANDSHAKEN.
 309
 310                 if(session->status == ISSL_HANDSHAKEN)
 311                 {
 312                         // Is this right? Not sure if the unencrypted data is garaunteed to be the same length.
 313                         // Read into the inbuffer, offset from the beginning by the amount of data we have that insp hasn't taken yet.
 314                         log(DEBUG, "m_ssl_gnutls.so: gnutls_record_recv(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
 315
 316                         int ret = gnutls_record_recv(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 317
 318                         if(ret == 0)
 319                         {
 320                                 // Client closed connection.
 321                                 log(DEBUG, "m_ssl_gnutls.so: Client closed the connection");
 322                                 readresult = 0;
 323                                 CloseSession(session);
 324                                 return 1;
 325                         }
 326                         else if(ret < 0)
 327                         {
 328                                 if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 329                                 {
 330                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Not all SSL data read: %s", gnutls_strerror(ret));
 331                                         return -1;
 332                                 }
 333                                 else
 334                                 {
 335                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Error reading SSL data: %s", gnutls_strerror(ret));
 336                                         readresult = 0;
 337                                         CloseSession(session);
 338                                 }
 339                         }
 340                         else
 341                         {
 342                                 // Read successfully 'ret' bytes into inbuf + inbufoffset
 343                                 // There are 'ret' + 'inbufoffset' bytes of data in 'inbuf'
 344                                 // 'buffer' is 'count' long
 345
 346                                 unsigned int length = ret + session->inbufoffset;
 347
 348                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Read %d bytes, now have %d waiting to be passed up", ret, length);
 349
 350                                 if(count <= length)
 351                                 {
 352                                         memcpy(buffer, session->inbuf, count);
 353                                         // Move the stuff left in inbuf to the beginning of it
 354                                         memcpy(session->inbuf, session->inbuf + count, (length - count));
 355                                         // Now we need to set session->inbufoffset to the amount of data still waiting to be handed to insp.
 356                                         session->inbufoffset = length - count;
 357                                         // Insp uses readresult as the count of how much data there is in buffer, so:
 358                                         readresult = count;
 359                                 }
 360                                 else
 361                                 {
 362                                         // There's not as much in the inbuf as there is space in the buffer, so just copy the whole thing.
 363                                         memcpy(buffer, session->inbuf, length);
 364                                         // Zero the offset, as there's nothing there..
 365                                         session->inbufoffset = 0;
 366                                         // As above
 367                                         readresult = length;
 368                                 }
 369
 370                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Passing %d bytes up to insp:", length);
 371                                 Srv->Log(DEBUG, std::string(buffer, readresult));
 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, 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                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Trying to write %d bytes:", count);
 423                         Srv->Log(DEBUG, session->outbuf);
 424
 425                         int ret = gnutls_record_send(session->sess, sendbuffer, count);
 426
 427                         if(ret == 0)
 428                         {
 429                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Client closed the connection");
 430                                 CloseSession(session);
 431                         }
 432                         else if(ret < 0)
 433                         {
 434                                 if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 435                                 {
 436                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Not all SSL data written: %s", gnutls_strerror(ret));
 437                                 }
 438                                 else
 439                                 {
 440                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Error writing SSL data: %s", gnutls_strerror(ret));
 441                                         CloseSession(session);
 442                                 }
 443                         }
 444                         else
 445                         {
 446                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Successfully wrote %d bytes", ret);
 447                                 session->outbuf = session->outbuf.substr(ret);
 448                         }
 449                 }
 450                 else if(session->status == ISSL_CLOSING)
 451                 {
 452                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: session closing...");
 453                 }
 454
 455                 return 1;
 456         }
 457
 458         // :kenny.chatspike.net 320 Om Epy|AFK :is a Secure Connection
 459         virtual void OnWhois(userrec* source, userrec* dest)
 460         {
 461                 // Bugfix, only send this numeric for *our* SSL users
 462                 if(dest->GetExt("ssl") || (IS_LOCAL(dest) &&  isin(dest->port, listenports)))
 463                 {
 464                         WriteServ(source->fd, "320 %s %s :is using a secure connection", source->nick, dest->nick);
 465                 }
 466         }
 467
 468         virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
 469         {
 470                 // check if the linking module wants to know about OUR metadata
 471                 if(extname == "ssl")
 472                 {
 473                         // check if this user has an swhois field to send
 474                         if(user->GetExt(extname))
 475                         {
 476                                 // call this function in the linking module, let it format the data how it
 477                                 // sees fit, and send it on its way. We dont need or want to know how.
 478                                 proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, "ON");
 479                         }
 480                 }
 481         }
 482
 483         virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
 484         {
 485                 // check if its our metadata key, and its associated with a user
 486                 if ((target_type == TYPE_USER) && (extname == "ssl"))
 487                 {
 488                         userrec* dest = (userrec*)target;
 489                         // if they dont already have an ssl flag, accept the remote server's
 490                         if (!dest->GetExt(extname))
 491                         {
 492                                 dest->Extend(extname, "ON");
 493                         }
 494                 }
 495         }
 496
 497         bool Handshake(issl_session* session)
 498         {
 499                 int ret = gnutls_handshake(session->sess);
 500
 501       if(ret < 0)
 502                 {
 503                         if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 504                         {
 505                                 // Handshake needs resuming later, read() or write() would have blocked.
 506
 507                                 if(gnutls_record_get_direction(session->sess) == 0)
 508                                 {
 509                                         // gnutls_handshake() wants to read() again.
 510                                         session->status = ISSL_HANDSHAKING_READ;
 511                                         log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (reading) later, error string: %s", gnutls_strerror(ret));
 512                                 }
 513                                 else
 514                                 {
 515                                         // gnutls_handshake() wants to write() again.
 516                                         session->status = ISSL_HANDSHAKING_WRITE;
 517                                         log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (writing) later, error string: %s", gnutls_strerror(ret));
 518                                         MakePollWrite(session);
 519                                 }
 520                         }
 521                         else
 522                         {
 523                                 // Handshake failed.
 524                                 CloseSession(session);
 525                            log(DEBUG, "m_ssl_gnutls.so: Handshake failed, error string: %s", gnutls_strerror(ret));
 526                            session->status = ISSL_CLOSING;
 527                         }
 528
 529                         return false;
 530                 }
 531                 else
 532                 {
 533                         // Handshake complete.
 534                         log(DEBUG, "m_ssl_gnutls.so: Handshake completed");
 535
 536                         // This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
 537                         userrec* extendme = Srv->FindDescriptor(session->fd);
 538                         if (extendme)
 539                         {
 540                                 if (!extendme->GetExt("ssl"))
 541                                         extendme->Extend("ssl", "ON");
 542                         }
 543
 544                         // Change the seesion state
 545                         session->status = ISSL_HANDSHAKEN;
 546
 547                         // Finish writing, if any left
 548                         MakePollWrite(session);
 549
 550                         return true;
 551                 }
 552         }
 553
 554         virtual void OnGlobalConnect(userrec* user)
 555         {
 556                 // This occurs AFTER OnUserConnect so we can be sure the
 557                 // protocol module has propogated the NICK message.
 558                 if ((user->GetExt("ssl")) && (IS_LOCAL(user)))
 559                 {
 560                         // Tell whatever protocol module we're using that we need to inform other servers of this metadata NOW.
 561                         std::deque<std::string>* metadata = new std::deque<std::string>;
 562                         metadata->push_back(user->nick);
 563                         metadata->push_back("ssl");             // The metadata id
 564                         metadata->push_back("ON");              // The value to send
 565                         Event* event = new Event((char*)metadata,(Module*)this,"send_metadata");
 566                         event->Send();                          // Trigger the event. We don't care what module picks it up.
 567                         DELETE(event);
 568                         DELETE(metadata);
 569                 }
 570         }
 571
 572         void MakePollWrite(issl_session* session)
 573         {
 574                 OnRawSocketWrite(session->fd, NULL, 0);
 575         }
 576
 577         void CloseSession(issl_session* session)
 578         {
 579                 if(session->sess)
 580                 {
 581                         gnutls_bye(session->sess, GNUTLS_SHUT_WR);
 582                         gnutls_deinit(session->sess);
 583                 }
 584
 585                 if(session->inbuf)
 586                 {
 587                         delete[] session->inbuf;
 588                 }
 589
 590                 session->outbuf.clear();
 591                 session->inbuf = NULL;
 592                 session->sess = NULL;
 593                 session->status = ISSL_NONE;
 594         }
 595 };
 596
 597 class ModuleSSLGnuTLSFactory : public ModuleFactory
 598 {
 599  public:
 600         ModuleSSLGnuTLSFactory()
 601         {
 602         }
 603
 604         ~ModuleSSLGnuTLSFactory()
 605         {
 606         }
 607
 608         virtual Module * CreateModule(Server* Me)
 609         {
 610                 return new ModuleSSLGnuTLS(Me);
 611         }
 612 };
 613
 614
 615 extern "C" void * init_module( void )
 616 {
 617         return new ModuleSSLGnuTLSFactory;
 618 }