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