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 : public classbase
  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         char* dummy;
  48
  49         CullList culllist;
  50
  51         std::vector<int> listenports;
  52
  53         int inbufsize;
  54         issl_session sessions[MAX_DESCRIPTORS];
  55
  56         gnutls_certificate_credentials x509_cred;
  57         gnutls_dh_params dh_params;
  58
  59         std::string keyfile;
  60         std::string certfile;
  61         std::string cafile;
  62         std::string crlfile;
  63         int dh_bits;
  64
  65  public:
  66
  67         ModuleSSLGnuTLS(Server* Me)
  68                 : Module::Module(Me)
  69         {
  70                 Srv = Me;
  71                 SrvConf = Srv->GetConfig();
  72
  73                 // Not rehashable...because I cba to reduce all the sizes of existing buffers.
  74                 inbufsize = SrvConf->NetBufferSize;
  75
  76                 gnutls_global_init(); // This must be called once in the program
  77
  78                 if(gnutls_certificate_allocate_credentials(&x509_cred) != 0)
  79                         log(DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
  80
  81                 // Guessing return meaning
  82                 if(gnutls_dh_params_init(&dh_params) < 0)
  83                         log(DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
  84
  85                 // Needs the flag as it ignores a plain /rehash
  86                 OnRehash("ssl");
  87
  88                 // Void return, guess we assume success
  89                 gnutls_certificate_set_dh_params(x509_cred, dh_params);
  90         }
  91
  92         virtual void OnRehash(const std::string &param)
  93         {
  94                 if(param != "ssl")
  95                         return;
  96
  97                 Conf = new ConfigReader;
  98
  99                 for(unsigned int i = 0; i < listenports.size(); i++)
 100                 {
 101                         SrvConf->DelIOHook(listenports[i]);
 102                 }
 103
 104                 listenports.clear();
 105
 106                 for(int i = 0; i < Conf->Enumerate("bind"); i++)
 107                 {
 108                         // For each <bind> tag
 109                         if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "gnutls"))
 110                         {
 111                                 // Get the port we're meant to be listening on with SSL
 112                                 unsigned int port = Conf->ReadInteger("bind", "port", i, true);
 113                                 if(SrvConf->AddIOHook(port, this))
 114                                 {
 115                                         // We keep a record of which ports we're listening on with SSL
 116                                         listenports.push_back(port);
 117
 118                                         log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", port);
 119                                 }
 120                                 else
 121                                 {
 122                                         log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", port);
 123                                 }
 124                         }
 125                 }
 126
 127                 std::string confdir(CONFIG_FILE);
 128                 // +1 so we the path ends with a /
 129                 confdir = confdir.substr(0, confdir.find_last_of('/') + 1);
 130
 131                 cafile  = Conf->ReadValue("gnutls", "cafile", 0);
 132                 crlfile = Conf->ReadValue("gnutls", "crlfile", 0);
 133                 certfile        = Conf->ReadValue("gnutls", "certfile", 0);
 134                 keyfile = Conf->ReadValue("gnutls", "keyfile", 0);
 135                 dh_bits = Conf->ReadInteger("gnutls", "dhbits", 0, false);
 136
 137                 // Set all the default values needed.
 138                 if(cafile == "")
 139                         cafile = "ca.pem";
 140
 141                 if(crlfile == "")
 142                         crlfile = "crl.pem";
 143
 144                 if(certfile == "")
 145                         certfile = "cert.pem";
 146
 147                 if(keyfile == "")
 148                         keyfile = "key.pem";
 149
 150                 if((dh_bits != 768) && (dh_bits != 1024) && (dh_bits != 2048) && (dh_bits != 3072) && (dh_bits != 4096))
 151                         dh_bits = 1024;
 152
 153                 // Prepend relative paths with the path to the config directory.
 154                 if(cafile[0] != '/')
 155                         cafile = confdir + cafile;
 156
 157                 if(crlfile[0] != '/')
 158                         crlfile = confdir + crlfile;
 159
 160                 if(certfile[0] != '/')
 161                         certfile = confdir + certfile;
 162
 163                 if(keyfile[0] != '/')
 164                         keyfile = confdir + keyfile;
 165
 166                 if(gnutls_certificate_set_x509_trust_file(x509_cred, cafile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 167                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file: %s", cafile.c_str());
 168
 169                 if(gnutls_certificate_set_x509_crl_file (x509_cred, crlfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 170                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file: %s", crlfile.c_str());
 171
 172                 // Guessing on the return value of this, manual doesn't say :|
 173                 if(gnutls_certificate_set_x509_key_file (x509_cred, certfile.c_str(), keyfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
 174                         log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 certificate and key files: %s and %s", certfile.c_str(), keyfile.c_str());
 175
 176                 // This may be on a large (once a day or week) timer eventually.
 177                 GenerateDHParams();
 178
 179                 DELETE(Conf);
 180         }
 181
 182         void GenerateDHParams()
 183         {
 184                 // Generate Diffie Hellman parameters - for use with DHE
 185                 // kx algorithms. These should be discarded and regenerated
 186                 // once a day, once a week or once a month. Depending on the
 187                 // security requirements.
 188
 189                 if(gnutls_dh_params_generate2(dh_params, dh_bits) < 0)
 190                         log(DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits)", dh_bits);
 191         }
 192
 193         virtual ~ModuleSSLGnuTLS()
 194         {
 195                 gnutls_dh_params_deinit(dh_params);
 196                 gnutls_certificate_free_credentials(x509_cred);
 197                 gnutls_global_deinit();
 198         }
 199
 200         virtual void OnCleanup(int target_type, void* item)
 201         {
 202                 if(target_type == TYPE_USER)
 203                 {
 204                         userrec* user = (userrec*)item;
 205
 206                         if(user->GetExt("ssl", dummy) && isin(user->port, listenports))
 207                         {
 208                                 // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
 209                                 // Potentially there could be multiple SSL modules loaded at once on different ports.
 210                                 log(DEBUG, "m_ssl_gnutls.so: Adding user %s to cull list", user->nick);
 211                                 culllist.AddItem(user, "SSL module unloading");
 212                         }
 213                 }
 214         }
 215
 216         virtual void OnUnloadModule(Module* mod, const std::string &name)
 217         {
 218                 if(mod == this)
 219                 {
 220                         // We're being unloaded, kill all the users added to the cull list in OnCleanup
 221                         int numusers = culllist.Apply();
 222                         log(DEBUG, "m_ssl_gnutls.so: Killed %d users for unload of GnuTLS SSL module", numusers);
 223
 224                         for(unsigned int i = 0; i < listenports.size(); i++)
 225                                 SrvConf->DelIOHook(listenports[i]);
 226                 }
 227         }
 228
 229         virtual Version GetVersion()
 230         {
 231                 return Version(1, 0, 0, 0, VF_VENDOR);
 232         }
 233
 234         void Implements(char* List)
 235         {
 236                 List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
 237                 List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnGlobalConnect] = 1;
 238         }
 239
 240         virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
 241         {
 242                 issl_session* session = &sessions[fd];
 243
 244                 session->fd = fd;
 245                 session->inbuf = new char[inbufsize];
 246                 session->inbufoffset = 0;
 247
 248                 gnutls_init(&session->sess, GNUTLS_SERVER);
 249
 250                 gnutls_set_default_priority(session->sess); // Avoid calling all the priority functions, defaults are adequate.
 251                 gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, x509_cred);
 252                 gnutls_certificate_server_set_request(session->sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
 253                 gnutls_dh_set_prime_bits(session->sess, dh_bits);
 254
 255                 /* This is an experimental change to avoid a warning on 64bit systems about casting between integer and pointer of different sizes
 256                  * This needs testing, but it's easy enough to rollback if need be
 257                  * Old: gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
 258                  * New: gnutls_transport_set_ptr(session->sess, &fd); // Give gnutls the fd for the socket.
 259                  *
 260                  * With testing this seems to...not work :/
 261                  */
 262
 263                 gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
 264
 265                 Handshake(session);
 266         }
 267
 268         virtual void OnRawSocketClose(int fd)
 269         {
 270                 log(DEBUG, "OnRawSocketClose: %d", fd);
 271                 CloseSession(&sessions[fd]);
 272         }
 273
 274         virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
 275         {
 276                 issl_session* session = &sessions[fd];
 277
 278                 if(!session->sess)
 279                 {
 280                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: No session to read from");
 281                         readresult = 0;
 282                         CloseSession(session);
 283                         return 1;
 284                 }
 285
 286                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead(%d, buffer, %u, %d)", fd, count, readresult);
 287
 288                 if(session->status == ISSL_HANDSHAKING_READ)
 289                 {
 290                         // The handshake isn't finished, try to finish it.
 291
 292                         if(Handshake(session))
 293                         {
 294                                 // Handshake successfully resumed.
 295                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: successfully resumed handshake");
 296                         }
 297                         else
 298                         {
 299                                 // Couldn't resume handshake.
 300                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: failed to resume handshake");
 301                                 return -1;
 302                         }
 303                 }
 304                 else if(session->status == ISSL_HANDSHAKING_WRITE)
 305                 {
 306                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
 307                         return -1;
 308                 }
 309
 310                 // If we resumed the handshake then session->status will be ISSL_HANDSHAKEN.
 311
 312                 if(session->status == ISSL_HANDSHAKEN)
 313                 {
 314                         // Is this right? Not sure if the unencrypted data is garaunteed to be the same length.
 315                         // Read into the inbuffer, offset from the beginning by the amount of data we have that insp hasn't taken yet.
 316                         log(DEBUG, "m_ssl_gnutls.so: gnutls_record_recv(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
 317
 318                         int ret = gnutls_record_recv(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 319
 320                         if(ret == 0)
 321                         {
 322                                 // Client closed connection.
 323                                 log(DEBUG, "m_ssl_gnutls.so: Client closed the connection");
 324                                 readresult = 0;
 325                                 CloseSession(session);
 326                                 return 1;
 327                         }
 328                         else if(ret < 0)
 329                         {
 330                                 if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 331                                 {
 332                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Not all SSL data read: %s", gnutls_strerror(ret));
 333                                         return -1;
 334                                 }
 335                                 else
 336                                 {
 337                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Error reading SSL data: %s", gnutls_strerror(ret));
 338                                         readresult = 0;
 339                                         CloseSession(session);
 340                                 }
 341                         }
 342                         else
 343                         {
 344                                 // Read successfully 'ret' bytes into inbuf + inbufoffset
 345                                 // There are 'ret' + 'inbufoffset' bytes of data in 'inbuf'
 346                                 // 'buffer' is 'count' long
 347
 348                                 unsigned int length = ret + session->inbufoffset;
 349
 350                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Read %d bytes, now have %d waiting to be passed up", ret, length);
 351
 352                                 if(count <= length)
 353                                 {
 354                                         memcpy(buffer, session->inbuf, count);
 355                                         // Move the stuff left in inbuf to the beginning of it
 356                                         memcpy(session->inbuf, session->inbuf + count, (length - count));
 357                                         // Now we need to set session->inbufoffset to the amount of data still waiting to be handed to insp.
 358                                         session->inbufoffset = length - count;
 359                                         // Insp uses readresult as the count of how much data there is in buffer, so:
 360                                         readresult = count;
 361                                 }
 362                                 else
 363                                 {
 364                                         // There's not as much in the inbuf as there is space in the buffer, so just copy the whole thing.
 365                                         memcpy(buffer, session->inbuf, length);
 366                                         // Zero the offset, as there's nothing there..
 367                                         session->inbufoffset = 0;
 368                                         // As above
 369                                         readresult = length;
 370                                 }
 371
 372                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Passing %d bytes up to insp:", length);
 373                                 Srv->Log(DEBUG, std::string(buffer, readresult));
 374                         }
 375                 }
 376                 else if(session->status == ISSL_CLOSING)
 377                 {
 378                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: session closing...");
 379                         readresult = 0;
 380                 }
 381
 382                 return 1;
 383         }
 384
 385         virtual int OnRawSocketWrite(int fd, char* buffer, int count)
 386         {
 387                 issl_session* session = &sessions[fd];
 388                 const char* sendbuffer = buffer;
 389
 390                 if(!session->sess)
 391                 {
 392                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: No session to write to");
 393                         CloseSession(session);
 394                         return 1;
 395                 }
 396
 397                 if(session->status == ISSL_HANDSHAKING_WRITE)
 398                 {
 399                         // The handshake isn't finished, try to finish it.
 400
 401                         if(Handshake(session))
 402                         {
 403                                 // Handshake successfully resumed.
 404                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: successfully resumed handshake");
 405                         }
 406                         else
 407                         {
 408                                 // Couldn't resume handshake.
 409                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: failed to resume handshake");
 410                         }
 411                 }
 412                 else if(session->status == ISSL_HANDSHAKING_READ)
 413                 {
 414                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");
 415                 }
 416
 417                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Adding %d bytes to the outgoing buffer", count);
 418                 session->outbuf.append(sendbuffer, count);
 419                 sendbuffer = session->outbuf.c_str();
 420                 count = session->outbuf.size();
 421
 422                 if(session->status == ISSL_HANDSHAKEN)
 423                 {
 424                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Trying to write %d bytes:", count);
 425                         Srv->Log(DEBUG, session->outbuf);
 426
 427                         int ret = gnutls_record_send(session->sess, sendbuffer, count);
 428
 429                         if(ret == 0)
 430                         {
 431                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Client closed the connection");
 432                                 CloseSession(session);
 433                         }
 434                         else if(ret < 0)
 435                         {
 436                                 if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 437                                 {
 438                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Not all SSL data written: %s", gnutls_strerror(ret));
 439                                 }
 440                                 else
 441                                 {
 442                                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Error writing SSL data: %s", gnutls_strerror(ret));
 443                                         CloseSession(session);
 444                                 }
 445                         }
 446                         else
 447                         {
 448                                 log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Successfully wrote %d bytes", ret);
 449                                 session->outbuf = session->outbuf.substr(ret);
 450                         }
 451                 }
 452                 else if(session->status == ISSL_CLOSING)
 453                 {
 454                         log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: session closing...");
 455                 }
 456
 457                 return 1;
 458         }
 459
 460         // :kenny.chatspike.net 320 Om Epy|AFK :is a Secure Connection
 461         virtual void OnWhois(userrec* source, userrec* dest)
 462         {
 463                 // Bugfix, only send this numeric for *our* SSL users
 464                 if(dest->GetExt("ssl", dummy) || (IS_LOCAL(dest) &&  isin(dest->port, listenports)))
 465                 {
 466                         WriteServ(source->fd, "320 %s %s :is using a secure connection", source->nick, dest->nick);
 467                 }
 468         }
 469
 470         virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
 471         {
 472                 // check if the linking module wants to know about OUR metadata
 473                 if(extname == "ssl")
 474                 {
 475                         // check if this user has an swhois field to send
 476                         if(user->GetExt(extname, dummy))
 477                         {
 478                                 // call this function in the linking module, let it format the data how it
 479                                 // sees fit, and send it on its way. We dont need or want to know how.
 480                                 proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, "ON");
 481                         }
 482                 }
 483         }
 484
 485         virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
 486         {
 487                 // check if its our metadata key, and its associated with a user
 488                 if ((target_type == TYPE_USER) && (extname == "ssl"))
 489                 {
 490                         userrec* dest = (userrec*)target;
 491                         // if they dont already have an ssl flag, accept the remote server's
 492                         if (!dest->GetExt(extname, dummy))
 493                         {
 494                                 dest->Extend(extname, "ON");
 495                         }
 496                 }
 497         }
 498
 499         bool Handshake(issl_session* session)
 500         {
 501                 int ret = gnutls_handshake(session->sess);
 502
 503       if(ret < 0)
 504                 {
 505                         if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
 506                         {
 507                                 // Handshake needs resuming later, read() or write() would have blocked.
 508
 509                                 if(gnutls_record_get_direction(session->sess) == 0)
 510                                 {
 511                                         // gnutls_handshake() wants to read() again.
 512                                         session->status = ISSL_HANDSHAKING_READ;
 513                                         log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (reading) later, error string: %s", gnutls_strerror(ret));
 514                                 }
 515                                 else
 516                                 {
 517                                         // gnutls_handshake() wants to write() again.
 518                                         session->status = ISSL_HANDSHAKING_WRITE;
 519                                         log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (writing) later, error string: %s", gnutls_strerror(ret));
 520                                         MakePollWrite(session);
 521                                 }
 522                         }
 523                         else
 524                         {
 525                                 // Handshake failed.
 526                                 CloseSession(session);
 527                            log(DEBUG, "m_ssl_gnutls.so: Handshake failed, error string: %s", gnutls_strerror(ret));
 528                            session->status = ISSL_CLOSING;
 529                         }
 530
 531                         return false;
 532                 }
 533                 else
 534                 {
 535                         // Handshake complete.
 536                         log(DEBUG, "m_ssl_gnutls.so: Handshake completed");
 537
 538                         // This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
 539                         userrec* extendme = Srv->FindDescriptor(session->fd);
 540                         if (extendme)
 541                         {
 542                                 if (!extendme->GetExt("ssl", dummy))
 543                                         extendme->Extend("ssl", "ON");
 544                         }
 545
 546                         // Change the seesion state
 547                         session->status = ISSL_HANDSHAKEN;
 548
 549                         // Finish writing, if any left
 550                         MakePollWrite(session);
 551
 552                         return true;
 553                 }
 554         }
 555
 556         virtual void OnGlobalConnect(userrec* user)
 557         {
 558                 // This occurs AFTER OnUserConnect so we can be sure the
 559                 // protocol module has propogated the NICK message.
 560                 if ((user->GetExt("ssl", dummy)) && (IS_LOCAL(user)))
 561                 {
 562                         // Tell whatever protocol module we're using that we need to inform other servers of this metadata NOW.
 563                         std::deque<std::string>* metadata = new std::deque<std::string>;
 564                         metadata->push_back(user->nick);
 565                         metadata->push_back("ssl");             // The metadata id
 566                         metadata->push_back("ON");              // The value to send
 567                         Event* event = new Event((char*)metadata,(Module*)this,"send_metadata");
 568                         event->Send();                          // Trigger the event. We don't care what module picks it up.
 569                         DELETE(event);
 570                         DELETE(metadata);
 571                 }
 572         }
 573
 574         void MakePollWrite(issl_session* session)
 575         {
 576                 OnRawSocketWrite(session->fd, NULL, 0);
 577         }
 578
 579         void CloseSession(issl_session* session)
 580         {
 581                 if(session->sess)
 582                 {
 583                         gnutls_bye(session->sess, GNUTLS_SHUT_WR);
 584                         gnutls_deinit(session->sess);
 585                 }
 586
 587                 if(session->inbuf)
 588                 {
 589                         delete[] session->inbuf;
 590                 }
 591
 592                 session->outbuf.clear();
 593                 session->inbuf = NULL;
 594                 session->sess = NULL;
 595                 session->status = ISSL_NONE;
 596         }
 597 };
 598
 599 class ModuleSSLGnuTLSFactory : public ModuleFactory
 600 {
 601  public:
 602         ModuleSSLGnuTLSFactory()
 603         {
 604         }
 605
 606         ~ModuleSSLGnuTLSFactory()
 607         {
 608         }
 609
 610         virtual Module * CreateModule(Server* Me)
 611         {
 612                 return new ModuleSSLGnuTLS(Me);
 613         }
 614 };
 615
 616
 617 extern "C" void * init_module( void )
 618 {
 619         return new ModuleSSLGnuTLSFactory;
 620 }