git.oblomov.eu Git - wine/blob - dlls/wininet/netconnection.c

   1 /*
   2  * Wininet - networking layer. Uses unix sockets or OpenSSL.
   3  *
   4  * Copyright 2002 TransGaming Technologies Inc.
   5  *
   6  * David Hammerton
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #define NONAMELESSUNION
  27
  28 #if defined(__MINGW32__) || defined (_MSC_VER)
  29 #include <ws2tcpip.h>
  30 #endif
  31
  32 #include <sys/types.h>
  33 #ifdef HAVE_POLL_H
  34 #include <poll.h>
  35 #endif
  36 #ifdef HAVE_SYS_POLL_H
  37 # include <sys/poll.h>
  38 #endif
  39 #ifdef HAVE_SYS_TIME_H
  40 # include <sys/time.h>
  41 #endif
  42 #ifdef HAVE_SYS_SOCKET_H
  43 # include <sys/socket.h>
  44 #endif
  45 #ifdef HAVE_SYS_FILIO_H
  46 # include <sys/filio.h>
  47 #endif
  48 #ifdef HAVE_UNISTD_H
  49 # include <unistd.h>
  50 #endif
  51 #ifdef HAVE_SYS_IOCTL_H
  52 # include <sys/ioctl.h>
  53 #endif
  54 #include <time.h>
  55 #ifdef HAVE_NETDB_H
  56 # include <netdb.h>
  57 #endif
  58 #ifdef HAVE_NETINET_IN_H
  59 # include <netinet/in.h>
  60 #endif
  61 #ifdef HAVE_OPENSSL_SSL_H
  62 # include <openssl/ssl.h>
  63 # include <openssl/opensslv.h>
  64 #undef FAR
  65 #undef DSA
  66 #endif
  67
  68 #include <stdarg.h>
  69 #include <stdlib.h>
  70 #include <string.h>
  71 #include <stdio.h>
  72 #include <errno.h>
  73
  74 #include "wine/library.h"
  75 #include "windef.h"
  76 #include "winbase.h"
  77 #include "wininet.h"
  78 #include "winerror.h"
  79 #include "wincrypt.h"
  80
  81 #include "wine/debug.h"
  82 #include "internet.h"
  83
  84 /* To avoid conflicts with the Unix socket headers. we only need it for
  85  * the error codes anyway. */
  86 #define USE_WS_PREFIX
  87 #include "winsock2.h"
  88
  89 #define RESPONSE_TIMEOUT        30            /* FROM internet.c */
  90
  91
  92 WINE_DEFAULT_DEBUG_CHANNEL(wininet);
  93
  94 /* FIXME!!!!!!
  95  *    This should use winsock - To use winsock the functions will have to change a bit
  96  *        as they are designed for unix sockets.
  97  *    SSL stuff should use crypt32.dll
  98  */
  99
 100 #ifdef SONAME_LIBSSL
 101
 102 #include <openssl/err.h>
 103
 104 static CRITICAL_SECTION init_ssl_cs;
 105 static CRITICAL_SECTION_DEBUG init_ssl_cs_debug =
 106 {
 107     0, 0, &init_ssl_cs,
 108     { &init_ssl_cs_debug.ProcessLocksList,
 109       &init_ssl_cs_debug.ProcessLocksList },
 110     0, 0, { (DWORD_PTR)(__FILE__ ": init_ssl_cs") }
 111 };
 112 static CRITICAL_SECTION init_ssl_cs = { &init_ssl_cs_debug, -1, 0, 0, 0, 0 };
 113
 114 static void *OpenSSL_ssl_handle;
 115 static void *OpenSSL_crypto_handle;
 116
 117 #if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER > 0x10000000)
 118 static const SSL_METHOD *meth;
 119 #else
 120 static SSL_METHOD *meth;
 121 #endif
 122 static SSL_CTX *ctx;
 123 static int hostname_idx;
 124 static int error_idx;
 125 static int conn_idx;
 126
 127 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
 128
 129 /* OpenSSL functions that we use */
 130 MAKE_FUNCPTR(SSL_library_init);
 131 MAKE_FUNCPTR(SSL_load_error_strings);
 132 MAKE_FUNCPTR(SSLv23_method);
 133 MAKE_FUNCPTR(SSL_CTX_free);
 134 MAKE_FUNCPTR(SSL_CTX_new);
 135 MAKE_FUNCPTR(SSL_new);
 136 MAKE_FUNCPTR(SSL_free);
 137 MAKE_FUNCPTR(SSL_set_fd);
 138 MAKE_FUNCPTR(SSL_connect);
 139 MAKE_FUNCPTR(SSL_shutdown);
 140 MAKE_FUNCPTR(SSL_write);
 141 MAKE_FUNCPTR(SSL_read);
 142 MAKE_FUNCPTR(SSL_pending);
 143 MAKE_FUNCPTR(SSL_get_error);
 144 MAKE_FUNCPTR(SSL_get_ex_new_index);
 145 MAKE_FUNCPTR(SSL_get_ex_data);
 146 MAKE_FUNCPTR(SSL_set_ex_data);
 147 MAKE_FUNCPTR(SSL_get_ex_data_X509_STORE_CTX_idx);
 148 MAKE_FUNCPTR(SSL_get_peer_certificate);
 149 MAKE_FUNCPTR(SSL_CTX_get_timeout);
 150 MAKE_FUNCPTR(SSL_CTX_set_timeout);
 151 MAKE_FUNCPTR(SSL_CTX_set_default_verify_paths);
 152 MAKE_FUNCPTR(SSL_CTX_set_verify);
 153 MAKE_FUNCPTR(SSL_get_current_cipher);
 154 MAKE_FUNCPTR(SSL_CIPHER_get_bits);
 155
 156 /* OpenSSL's libcrypto functions that we use */
 157 MAKE_FUNCPTR(BIO_new_fp);
 158 MAKE_FUNCPTR(CRYPTO_num_locks);
 159 MAKE_FUNCPTR(CRYPTO_set_id_callback);
 160 MAKE_FUNCPTR(CRYPTO_set_locking_callback);
 161 MAKE_FUNCPTR(ERR_free_strings);
 162 MAKE_FUNCPTR(ERR_get_error);
 163 MAKE_FUNCPTR(ERR_error_string);
 164 MAKE_FUNCPTR(X509_STORE_CTX_get_ex_data);
 165 MAKE_FUNCPTR(X509_STORE_CTX_get_chain);
 166 MAKE_FUNCPTR(i2d_X509);
 167 MAKE_FUNCPTR(sk_num);
 168 MAKE_FUNCPTR(sk_value);
 169 #undef MAKE_FUNCPTR
 170
 171 static CRITICAL_SECTION *ssl_locks;
 172 static unsigned int num_ssl_locks;
 173
 174 static unsigned long ssl_thread_id(void)
 175 {
 176     return GetCurrentThreadId();
 177 }
 178
 179 static void ssl_lock_callback(int mode, int type, const char *file, int line)
 180 {
 181     if (mode & CRYPTO_LOCK)
 182         EnterCriticalSection(&ssl_locks[type]);
 183     else
 184         LeaveCriticalSection(&ssl_locks[type]);
 185 }
 186
 187 static PCCERT_CONTEXT X509_to_cert_context(X509 *cert)
 188 {
 189     unsigned char* buffer,*p;
 190     INT len;
 191     BOOL malloced = FALSE;
 192     PCCERT_CONTEXT ret;
 193
 194     p = NULL;
 195     len = pi2d_X509(cert,&p);
 196     /*
 197      * SSL 0.9.7 and above malloc the buffer if it is null.
 198      * however earlier version do not and so we would need to alloc the buffer.
 199      *
 200      * see the i2d_X509 man page for more details.
 201      */
 202     if (!p)
 203     {
 204         buffer = heap_alloc(len);
 205         p = buffer;
 206         len = pi2d_X509(cert,&p);
 207     }
 208     else
 209     {
 210         buffer = p;
 211         malloced = TRUE;
 212     }
 213
 214     ret = CertCreateCertificateContext(X509_ASN_ENCODING,buffer,len);
 215
 216     if (malloced)
 217         free(buffer);
 218     else
 219         HeapFree(GetProcessHeap(),0,buffer);
 220
 221     return ret;
 222 }
 223
 224 static DWORD netconn_verify_cert(PCCERT_CONTEXT cert, HCERTSTORE store,
 225     WCHAR *server, DWORD security_flags)
 226 {
 227     BOOL ret;
 228     CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
 229     PCCERT_CHAIN_CONTEXT chain;
 230     char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
 231     char *server_auth[] = { oid_server_auth };
 232     DWORD err = ERROR_SUCCESS, chainFlags = 0;
 233
 234     TRACE("verifying %s\n", debugstr_w(server));
 235     chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
 236     chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
 237     if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION))
 238         chainFlags |= CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
 239     if ((ret = CertGetCertificateChain(NULL, cert, NULL, store, &chainPara,
 240         chainFlags, NULL, &chain)))
 241     {
 242         if (chain->TrustStatus.dwErrorStatus)
 243         {
 244             static const DWORD supportedErrors =
 245                 CERT_TRUST_IS_NOT_TIME_VALID |
 246                 CERT_TRUST_IS_UNTRUSTED_ROOT |
 247                 CERT_TRUST_IS_OFFLINE_REVOCATION |
 248                 CERT_TRUST_REVOCATION_STATUS_UNKNOWN |
 249                 CERT_TRUST_IS_REVOKED |
 250                 CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
 251
 252             if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID &&
 253                 !(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
 254                 err = ERROR_INTERNET_SEC_CERT_DATE_INVALID;
 255             else if (chain->TrustStatus.dwErrorStatus &
 256                      CERT_TRUST_IS_UNTRUSTED_ROOT &&
 257                      !(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
 258                 err = ERROR_INTERNET_INVALID_CA;
 259             else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
 260                      ((chain->TrustStatus.dwErrorStatus &
 261                       CERT_TRUST_IS_OFFLINE_REVOCATION) ||
 262                       (chain->TrustStatus.dwErrorStatus &
 263                        CERT_TRUST_REVOCATION_STATUS_UNKNOWN)))
 264                 err = ERROR_INTERNET_SEC_CERT_NO_REV;
 265             else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
 266                      (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED))
 267                 err = ERROR_INTERNET_SEC_CERT_REVOKED;
 268             else if (!(security_flags & SECURITY_FLAG_IGNORE_WRONG_USAGE) &&
 269                      (chain->TrustStatus.dwErrorStatus &
 270                       CERT_TRUST_IS_NOT_VALID_FOR_USAGE))
 271                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 272             else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
 273                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 274         }
 275         if (!err)
 276         {
 277             CERT_CHAIN_POLICY_PARA policyPara;
 278             SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
 279             CERT_CHAIN_POLICY_STATUS policyStatus;
 280             CERT_CHAIN_CONTEXT chainCopy;
 281
 282             /* Clear chain->TrustStatus.dwErrorStatus so
 283              * CertVerifyCertificateChainPolicy will verify additional checks
 284              * rather than stopping with an existing, ignored error.
 285              */
 286             memcpy(&chainCopy, chain, sizeof(chainCopy));
 287             chainCopy.TrustStatus.dwErrorStatus = 0;
 288             sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
 289             sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
 290             sslExtraPolicyPara.pwszServerName = server;
 291             sslExtraPolicyPara.fdwChecks = security_flags;
 292             policyPara.cbSize = sizeof(policyPara);
 293             policyPara.dwFlags = 0;
 294             policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
 295             ret = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
 296                 &chainCopy, &policyPara, &policyStatus);
 297             /* Any error in the policy status indicates that the
 298              * policy couldn't be verified.
 299              */
 300             if (ret && policyStatus.dwError)
 301             {
 302                 if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
 303                     err = ERROR_INTERNET_SEC_CERT_CN_INVALID;
 304                 else
 305                     err = ERROR_INTERNET_SEC_INVALID_CERT;
 306             }
 307         }
 308         CertFreeCertificateChain(chain);
 309     }
 310     TRACE("returning %08x\n", err);
 311     return err;
 312 }
 313
 314 static int netconn_secure_verify(int preverify_ok, X509_STORE_CTX *ctx)
 315 {
 316     SSL *ssl;
 317     WCHAR *server;
 318     BOOL ret = FALSE;
 319     HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
 320         CERT_STORE_CREATE_NEW_FLAG, NULL);
 321     WININET_NETCONNECTION *conn;
 322
 323     ssl = pX509_STORE_CTX_get_ex_data(ctx,
 324         pSSL_get_ex_data_X509_STORE_CTX_idx());
 325     server = pSSL_get_ex_data(ssl, hostname_idx);
 326     conn = pSSL_get_ex_data(ssl, conn_idx);
 327     if (store)
 328     {
 329         X509 *cert;
 330         int i;
 331         PCCERT_CONTEXT endCert = NULL;
 332         struct stack_st *chain = (struct stack_st *)pX509_STORE_CTX_get_chain( ctx );
 333
 334         ret = TRUE;
 335         for (i = 0; ret && i < psk_num(chain); i++)
 336         {
 337             PCCERT_CONTEXT context;
 338
 339             cert = (X509 *)psk_value(chain, i);
 340             if ((context = X509_to_cert_context(cert)))
 341             {
 342                 if (i == 0)
 343                     ret = CertAddCertificateContextToStore(store, context,
 344                         CERT_STORE_ADD_ALWAYS, &endCert);
 345                 else
 346                     ret = CertAddCertificateContextToStore(store, context,
 347                         CERT_STORE_ADD_ALWAYS, NULL);
 348                 CertFreeCertificateContext(context);
 349             }
 350         }
 351         if (!endCert) ret = FALSE;
 352         if (ret)
 353         {
 354             DWORD_PTR err = netconn_verify_cert(endCert, store, server,
 355                                                 conn->security_flags);
 356
 357             if (err)
 358             {
 359                 pSSL_set_ex_data(ssl, error_idx, (void *)err);
 360                 ret = FALSE;
 361             }
 362         }
 363         CertFreeCertificateContext(endCert);
 364         CertCloseStore(store, 0);
 365     }
 366     return ret;
 367 }
 368
 369 #endif
 370
 371 DWORD NETCON_init(WININET_NETCONNECTION *connection, BOOL useSSL)
 372 {
 373     connection->useSSL = useSSL;
 374     connection->socketFD = -1;
 375     if (useSSL)
 376     {
 377 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 378         int i;
 379
 380         TRACE("using SSL connection\n");
 381         EnterCriticalSection(&init_ssl_cs);
 382         if (OpenSSL_ssl_handle) /* already initialized everything */
 383         {
 384             LeaveCriticalSection(&init_ssl_cs);
 385             return ERROR_SUCCESS;
 386         }
 387         OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
 388         if (!OpenSSL_ssl_handle)
 389         {
 390             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 391                 SONAME_LIBSSL);
 392             LeaveCriticalSection(&init_ssl_cs);
 393             return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 394         }
 395         OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
 396         if (!OpenSSL_crypto_handle)
 397         {
 398             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 399                 SONAME_LIBCRYPTO);
 400             LeaveCriticalSection(&init_ssl_cs);
 401             return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 402         }
 403
 404         /* mmm nice ugly macroness */
 405 #define DYNSSL(x) \
 406     p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
 407     if (!p##x) \
 408     { \
 409         ERR("failed to load symbol %s\n", #x); \
 410         LeaveCriticalSection(&init_ssl_cs); \
 411         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 412     }
 413
 414         DYNSSL(SSL_library_init);
 415         DYNSSL(SSL_load_error_strings);
 416         DYNSSL(SSLv23_method);
 417         DYNSSL(SSL_CTX_free);
 418         DYNSSL(SSL_CTX_new);
 419         DYNSSL(SSL_new);
 420         DYNSSL(SSL_free);
 421         DYNSSL(SSL_set_fd);
 422         DYNSSL(SSL_connect);
 423         DYNSSL(SSL_shutdown);
 424         DYNSSL(SSL_write);
 425         DYNSSL(SSL_read);
 426         DYNSSL(SSL_pending);
 427         DYNSSL(SSL_get_error);
 428         DYNSSL(SSL_get_ex_new_index);
 429         DYNSSL(SSL_get_ex_data);
 430         DYNSSL(SSL_set_ex_data);
 431         DYNSSL(SSL_get_ex_data_X509_STORE_CTX_idx);
 432         DYNSSL(SSL_get_peer_certificate);
 433         DYNSSL(SSL_CTX_get_timeout);
 434         DYNSSL(SSL_CTX_set_timeout);
 435         DYNSSL(SSL_CTX_set_default_verify_paths);
 436         DYNSSL(SSL_CTX_set_verify);
 437         DYNSSL(SSL_get_current_cipher);
 438         DYNSSL(SSL_CIPHER_get_bits);
 439 #undef DYNSSL
 440
 441 #define DYNCRYPTO(x) \
 442     p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
 443     if (!p##x) \
 444     { \
 445         ERR("failed to load symbol %s\n", #x); \
 446         LeaveCriticalSection(&init_ssl_cs); \
 447         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 448     }
 449         DYNCRYPTO(BIO_new_fp);
 450         DYNCRYPTO(CRYPTO_num_locks);
 451         DYNCRYPTO(CRYPTO_set_id_callback);
 452         DYNCRYPTO(CRYPTO_set_locking_callback);
 453         DYNCRYPTO(ERR_free_strings);
 454         DYNCRYPTO(ERR_get_error);
 455         DYNCRYPTO(ERR_error_string);
 456         DYNCRYPTO(X509_STORE_CTX_get_ex_data);
 457         DYNCRYPTO(X509_STORE_CTX_get_chain);
 458         DYNCRYPTO(i2d_X509);
 459         DYNCRYPTO(sk_num);
 460         DYNCRYPTO(sk_value);
 461 #undef DYNCRYPTO
 462
 463         pSSL_library_init();
 464         pSSL_load_error_strings();
 465         pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
 466
 467         meth = pSSLv23_method();
 468         ctx = pSSL_CTX_new(meth);
 469         if (!pSSL_CTX_set_default_verify_paths(ctx))
 470         {
 471             ERR("SSL_CTX_set_default_verify_paths failed: %s\n",
 472                 pERR_error_string(pERR_get_error(), 0));
 473             LeaveCriticalSection(&init_ssl_cs);
 474             return ERROR_OUTOFMEMORY;
 475         }
 476         hostname_idx = pSSL_get_ex_new_index(0, (void *)"hostname index",
 477                 NULL, NULL, NULL);
 478         if (hostname_idx == -1)
 479         {
 480             ERR("SSL_get_ex_new_index failed; %s\n",
 481                 pERR_error_string(pERR_get_error(), 0));
 482             LeaveCriticalSection(&init_ssl_cs);
 483             return ERROR_OUTOFMEMORY;
 484         }
 485         error_idx = pSSL_get_ex_new_index(0, (void *)"error index",
 486                 NULL, NULL, NULL);
 487         if (error_idx == -1)
 488         {
 489             ERR("SSL_get_ex_new_index failed; %s\n",
 490                 pERR_error_string(pERR_get_error(), 0));
 491             LeaveCriticalSection(&init_ssl_cs);
 492             return ERROR_OUTOFMEMORY;
 493         }
 494         conn_idx = pSSL_get_ex_new_index(0, (void *)"netconn index",
 495                 NULL, NULL, NULL);
 496         if (conn_idx == -1)
 497         {
 498             ERR("SSL_get_ex_new_index failed; %s\n",
 499                 pERR_error_string(pERR_get_error(), 0));
 500             LeaveCriticalSection(&init_ssl_cs);
 501             return ERROR_OUTOFMEMORY;
 502         }
 503         pSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, netconn_secure_verify);
 504
 505         pCRYPTO_set_id_callback(ssl_thread_id);
 506         num_ssl_locks = pCRYPTO_num_locks();
 507         ssl_locks = HeapAlloc(GetProcessHeap(), 0, num_ssl_locks * sizeof(CRITICAL_SECTION));
 508         if (!ssl_locks)
 509         {
 510             LeaveCriticalSection(&init_ssl_cs);
 511             return ERROR_OUTOFMEMORY;
 512         }
 513         for (i = 0; i < num_ssl_locks; i++)
 514             InitializeCriticalSection(&ssl_locks[i]);
 515         pCRYPTO_set_locking_callback(ssl_lock_callback);
 516         LeaveCriticalSection(&init_ssl_cs);
 517 #else
 518         FIXME("can't use SSL, not compiled in.\n");
 519         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 520 #endif
 521     }
 522     return ERROR_SUCCESS;
 523 }
 524
 525 void NETCON_unload(void)
 526 {
 527 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 528     if (OpenSSL_crypto_handle)
 529     {
 530         pERR_free_strings();
 531         wine_dlclose(OpenSSL_crypto_handle, NULL, 0);
 532     }
 533     if (OpenSSL_ssl_handle)
 534     {
 535         if (ctx)
 536             pSSL_CTX_free(ctx);
 537         wine_dlclose(OpenSSL_ssl_handle, NULL, 0);
 538     }
 539     if (ssl_locks)
 540     {
 541         int i;
 542         for (i = 0; i < num_ssl_locks; i++) DeleteCriticalSection(&ssl_locks[i]);
 543         HeapFree(GetProcessHeap(), 0, ssl_locks);
 544     }
 545 #endif
 546 }
 547
 548 BOOL NETCON_connected(WININET_NETCONNECTION *connection)
 549 {
 550     return connection->socketFD != -1;
 551 }
 552
 553 /* translate a unix error code into a winsock one */
 554 int sock_get_error( int err )
 555 {
 556 #if !defined(__MINGW32__) && !defined (_MSC_VER)
 557     switch (err)
 558     {
 559         case EINTR:             return WSAEINTR;
 560         case EBADF:             return WSAEBADF;
 561         case EPERM:
 562         case EACCES:            return WSAEACCES;
 563         case EFAULT:            return WSAEFAULT;
 564         case EINVAL:            return WSAEINVAL;
 565         case EMFILE:            return WSAEMFILE;
 566         case EWOULDBLOCK:       return WSAEWOULDBLOCK;
 567         case EINPROGRESS:       return WSAEINPROGRESS;
 568         case EALREADY:          return WSAEALREADY;
 569         case ENOTSOCK:          return WSAENOTSOCK;
 570         case EDESTADDRREQ:      return WSAEDESTADDRREQ;
 571         case EMSGSIZE:          return WSAEMSGSIZE;
 572         case EPROTOTYPE:        return WSAEPROTOTYPE;
 573         case ENOPROTOOPT:       return WSAENOPROTOOPT;
 574         case EPROTONOSUPPORT:   return WSAEPROTONOSUPPORT;
 575         case ESOCKTNOSUPPORT:   return WSAESOCKTNOSUPPORT;
 576         case EOPNOTSUPP:        return WSAEOPNOTSUPP;
 577         case EPFNOSUPPORT:      return WSAEPFNOSUPPORT;
 578         case EAFNOSUPPORT:      return WSAEAFNOSUPPORT;
 579         case EADDRINUSE:        return WSAEADDRINUSE;
 580         case EADDRNOTAVAIL:     return WSAEADDRNOTAVAIL;
 581         case ENETDOWN:          return WSAENETDOWN;
 582         case ENETUNREACH:       return WSAENETUNREACH;
 583         case ENETRESET:         return WSAENETRESET;
 584         case ECONNABORTED:      return WSAECONNABORTED;
 585         case EPIPE:
 586         case ECONNRESET:        return WSAECONNRESET;
 587         case ENOBUFS:           return WSAENOBUFS;
 588         case EISCONN:           return WSAEISCONN;
 589         case ENOTCONN:          return WSAENOTCONN;
 590         case ESHUTDOWN:         return WSAESHUTDOWN;
 591         case ETOOMANYREFS:      return WSAETOOMANYREFS;
 592         case ETIMEDOUT:         return WSAETIMEDOUT;
 593         case ECONNREFUSED:      return WSAECONNREFUSED;
 594         case ELOOP:             return WSAELOOP;
 595         case ENAMETOOLONG:      return WSAENAMETOOLONG;
 596         case EHOSTDOWN:         return WSAEHOSTDOWN;
 597         case EHOSTUNREACH:      return WSAEHOSTUNREACH;
 598         case ENOTEMPTY:         return WSAENOTEMPTY;
 599 #ifdef EPROCLIM
 600         case EPROCLIM:          return WSAEPROCLIM;
 601 #endif
 602 #ifdef EUSERS
 603         case EUSERS:            return WSAEUSERS;
 604 #endif
 605 #ifdef EDQUOT
 606         case EDQUOT:            return WSAEDQUOT;
 607 #endif
 608 #ifdef ESTALE
 609         case ESTALE:            return WSAESTALE;
 610 #endif
 611 #ifdef EREMOTE
 612         case EREMOTE:           return WSAEREMOTE;
 613 #endif
 614     default: errno=err; perror("sock_set_error"); return WSAEFAULT;
 615     }
 616 #endif
 617     return err;
 618 }
 619
 620 /******************************************************************************
 621  * NETCON_create
 622  * Basically calls 'socket()'
 623  */
 624 DWORD NETCON_create(WININET_NETCONNECTION *connection, int domain,
 625               int type, int protocol)
 626 {
 627 #ifdef SONAME_LIBSSL
 628     if (connection->ssl_s)
 629         return ERROR_NOT_SUPPORTED;
 630 #endif
 631
 632     connection->socketFD = socket(domain, type, protocol);
 633     if (connection->socketFD == -1)
 634         return sock_get_error(errno);
 635
 636     return ERROR_SUCCESS;
 637 }
 638
 639 /******************************************************************************
 640  * NETCON_close
 641  * Basically calls 'close()' unless we should use SSL
 642  */
 643 DWORD NETCON_close(WININET_NETCONNECTION *connection)
 644 {
 645     int result;
 646
 647     if (!NETCON_connected(connection)) return ERROR_SUCCESS;
 648
 649 #ifdef SONAME_LIBSSL
 650     if (connection->ssl_s)
 651     {
 652         pSSL_shutdown(connection->ssl_s);
 653         pSSL_free(connection->ssl_s);
 654         connection->ssl_s = NULL;
 655     }
 656 #endif
 657
 658     result = closesocket(connection->socketFD);
 659     connection->socketFD = -1;
 660
 661     if (result == -1)
 662         return sock_get_error(errno);
 663     return ERROR_SUCCESS;
 664 }
 665
 666 /******************************************************************************
 667  * NETCON_secure_connect
 668  * Initiates a secure connection over an existing plaintext connection.
 669  */
 670 DWORD NETCON_secure_connect(WININET_NETCONNECTION *connection, LPWSTR hostname)
 671 {
 672     void *ssl_s;
 673     DWORD res = ERROR_NOT_SUPPORTED;
 674
 675 #ifdef SONAME_LIBSSL
 676     /* can't connect if we are already connected */
 677     if (connection->ssl_s)
 678     {
 679         ERR("already connected\n");
 680         return ERROR_INTERNET_CANNOT_CONNECT;
 681     }
 682
 683     ssl_s = pSSL_new(ctx);
 684     if (!ssl_s)
 685     {
 686         ERR("SSL_new failed: %s\n",
 687             pERR_error_string(pERR_get_error(), 0));
 688         return ERROR_OUTOFMEMORY;
 689     }
 690
 691     if (!pSSL_set_fd(ssl_s, connection->socketFD))
 692     {
 693         ERR("SSL_set_fd failed: %s\n",
 694             pERR_error_string(pERR_get_error(), 0));
 695         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 696         goto fail;
 697     }
 698
 699     if (!pSSL_set_ex_data(ssl_s, hostname_idx, hostname))
 700     {
 701         ERR("SSL_set_ex_data failed: %s\n",
 702             pERR_error_string(pERR_get_error(), 0));
 703         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 704         goto fail;
 705     }
 706     if (!pSSL_set_ex_data(ssl_s, conn_idx, connection))
 707     {
 708         ERR("SSL_set_ex_data failed: %s\n",
 709             pERR_error_string(pERR_get_error(), 0));
 710         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 711         goto fail;
 712     }
 713     if (pSSL_connect(ssl_s) <= 0)
 714     {
 715         res = (DWORD_PTR)pSSL_get_ex_data(ssl_s, error_idx);
 716         if (!res)
 717             res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 718         ERR("SSL_connect failed: %d\n", res);
 719         goto fail;
 720     }
 721
 722     connection->ssl_s = ssl_s;
 723     return ERROR_SUCCESS;
 724
 725 fail:
 726     if (ssl_s)
 727     {
 728         pSSL_shutdown(ssl_s);
 729         pSSL_free(ssl_s);
 730     }
 731 #endif
 732     return res;
 733 }
 734
 735 /******************************************************************************
 736  * NETCON_connect
 737  * Connects to the specified address.
 738  */
 739 DWORD NETCON_connect(WININET_NETCONNECTION *connection, const struct sockaddr *serv_addr,
 740                     unsigned int addrlen)
 741 {
 742     int result;
 743
 744     result = connect(connection->socketFD, serv_addr, addrlen);
 745     if (result == -1)
 746     {
 747         WARN("Unable to connect to host (%s)\n", strerror(errno));
 748
 749         closesocket(connection->socketFD);
 750         connection->socketFD = -1;
 751         return sock_get_error(errno);
 752     }
 753
 754     return ERROR_SUCCESS;
 755 }
 756
 757 /******************************************************************************
 758  * NETCON_send
 759  * Basically calls 'send()' unless we should use SSL
 760  * number of chars send is put in *sent
 761  */
 762 DWORD NETCON_send(WININET_NETCONNECTION *connection, const void *msg, size_t len, int flags,
 763                 int *sent /* out */)
 764 {
 765     if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
 766     if (!connection->useSSL)
 767     {
 768         *sent = send(connection->socketFD, msg, len, flags);
 769         if (*sent == -1)
 770             return sock_get_error(errno);
 771         return ERROR_SUCCESS;
 772     }
 773     else
 774     {
 775 #ifdef SONAME_LIBSSL
 776         if(!connection->ssl_s) {
 777             FIXME("not connected\n");
 778             return ERROR_NOT_SUPPORTED;
 779         }
 780         if (flags)
 781             FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
 782         *sent = pSSL_write(connection->ssl_s, msg, len);
 783         if (*sent < 1 && len)
 784             return ERROR_INTERNET_CONNECTION_ABORTED;
 785         return ERROR_SUCCESS;
 786 #else
 787         return ERROR_NOT_SUPPORTED;
 788 #endif
 789     }
 790 }
 791
 792 /******************************************************************************
 793  * NETCON_recv
 794  * Basically calls 'recv()' unless we should use SSL
 795  * number of chars received is put in *recvd
 796  */
 797 DWORD NETCON_recv(WININET_NETCONNECTION *connection, void *buf, size_t len, int flags,
 798                 int *recvd /* out */)
 799 {
 800     *recvd = 0;
 801     if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
 802     if (!len)
 803         return ERROR_SUCCESS;
 804     if (!connection->useSSL)
 805     {
 806         *recvd = recv(connection->socketFD, buf, len, flags);
 807         if(!*recvd)
 808             NETCON_close(connection);
 809         return *recvd == -1 ? sock_get_error(errno) :  ERROR_SUCCESS;
 810     }
 811     else
 812     {
 813 #ifdef SONAME_LIBSSL
 814         if(!connection->ssl_s) {
 815             FIXME("not connected\n");
 816             return ERROR_NOT_SUPPORTED;
 817         }
 818         *recvd = pSSL_read(connection->ssl_s, buf, len);
 819
 820         /* Check if EOF was received */
 821         if(!*recvd && (pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_ZERO_RETURN
 822                     || pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_SYSCALL)) {
 823             NETCON_close(connection);
 824             return ERROR_SUCCESS;
 825         }
 826
 827         return *recvd > 0 ? ERROR_SUCCESS : ERROR_INTERNET_CONNECTION_ABORTED;
 828 #else
 829         return ERROR_NOT_SUPPORTED;
 830 #endif
 831     }
 832 }
 833
 834 /******************************************************************************
 835  * NETCON_query_data_available
 836  * Returns the number of bytes of peeked data plus the number of bytes of
 837  * queued, but unread data.
 838  */
 839 BOOL NETCON_query_data_available(WININET_NETCONNECTION *connection, DWORD *available)
 840 {
 841     *available = 0;
 842     if (!NETCON_connected(connection))
 843         return FALSE;
 844
 845     if (!connection->useSSL)
 846     {
 847 #ifdef FIONREAD
 848         int unread;
 849         int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
 850         if (!retval)
 851         {
 852             TRACE("%d bytes of queued, but unread data\n", unread);
 853             *available += unread;
 854         }
 855 #endif
 856     }
 857     else
 858     {
 859 #ifdef SONAME_LIBSSL
 860         *available = connection->ssl_s ? pSSL_pending(connection->ssl_s) : 0;
 861 #endif
 862     }
 863     return TRUE;
 864 }
 865
 866 LPCVOID NETCON_GetCert(WININET_NETCONNECTION *connection)
 867 {
 868 #ifdef SONAME_LIBSSL
 869     X509* cert;
 870     LPCVOID r = NULL;
 871
 872     if (!connection->ssl_s)
 873         return NULL;
 874
 875     cert = pSSL_get_peer_certificate(connection->ssl_s);
 876     r = X509_to_cert_context(cert);
 877     return r;
 878 #else
 879     return NULL;
 880 #endif
 881 }
 882
 883 int NETCON_GetCipherStrength(WININET_NETCONNECTION *connection)
 884 {
 885 #ifdef SONAME_LIBSSL
 886 #if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x0090707f)
 887     const SSL_CIPHER *cipher;
 888 #else
 889     SSL_CIPHER *cipher;
 890 #endif
 891     int bits = 0;
 892
 893     if (!connection->ssl_s)
 894         return 0;
 895     cipher = pSSL_get_current_cipher(connection->ssl_s);
 896     if (!cipher)
 897         return 0;
 898     pSSL_CIPHER_get_bits(cipher, &bits);
 899     return bits;
 900 #else
 901     return 0;
 902 #endif
 903 }
 904
 905 DWORD NETCON_set_timeout(WININET_NETCONNECTION *connection, BOOL send, int value)
 906 {
 907     int result;
 908     struct timeval tv;
 909
 910     /* FIXME: we should probably store the timeout in the connection to set
 911      * when we do connect */
 912     if (!NETCON_connected(connection))
 913         return ERROR_SUCCESS;
 914
 915     /* value is in milliseconds, convert to struct timeval */
 916     tv.tv_sec = value / 1000;
 917     tv.tv_usec = (value % 1000) * 1000;
 918
 919     result = setsockopt(connection->socketFD, SOL_SOCKET,
 920                         send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv,
 921                         sizeof(tv));
 922
 923     if (result == -1)
 924     {
 925         WARN("setsockopt failed (%s)\n", strerror(errno));
 926         return sock_get_error(errno);
 927     }
 928
 929     return ERROR_SUCCESS;
 930 }