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_OFFLINE_REVOCATION |
 242                 CERT_TRUST_REVOCATION_STATUS_UNKNOWN |
 243                 CERT_TRUST_IS_REVOKED |
 244                 CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
 245
 246             if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID &&
 247                 !(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
 248                 err = ERROR_INTERNET_SEC_CERT_DATE_INVALID;
 249             else if (chain->TrustStatus.dwErrorStatus &
 250                      CERT_TRUST_IS_UNTRUSTED_ROOT &&
 251                      !(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
 252                 err = ERROR_INTERNET_INVALID_CA;
 253             else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
 254                      ((chain->TrustStatus.dwErrorStatus &
 255                       CERT_TRUST_IS_OFFLINE_REVOCATION) ||
 256                       (chain->TrustStatus.dwErrorStatus &
 257                        CERT_TRUST_REVOCATION_STATUS_UNKNOWN)))
 258                 err = ERROR_INTERNET_SEC_CERT_NO_REV;
 259             else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
 260                      (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED))
 261                 err = ERROR_INTERNET_SEC_CERT_REVOKED;
 262             else if (!(security_flags & SECURITY_FLAG_IGNORE_WRONG_USAGE) &&
 263                      (chain->TrustStatus.dwErrorStatus &
 264                       CERT_TRUST_IS_NOT_VALID_FOR_USAGE))
 265                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 266             else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
 267                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 268         }
 269         if (!err)
 270         {
 271             CERT_CHAIN_POLICY_PARA policyPara;
 272             SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
 273             CERT_CHAIN_POLICY_STATUS policyStatus;
 274             CERT_CHAIN_CONTEXT chainCopy;
 275
 276             /* Clear chain->TrustStatus.dwErrorStatus so
 277              * CertVerifyCertificateChainPolicy will verify additional checks
 278              * rather than stopping with an existing, ignored error.
 279              */
 280             memcpy(&chainCopy, chain, sizeof(chainCopy));
 281             chainCopy.TrustStatus.dwErrorStatus = 0;
 282             sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
 283             sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
 284             sslExtraPolicyPara.pwszServerName = server;
 285             sslExtraPolicyPara.fdwChecks = security_flags;
 286             policyPara.cbSize = sizeof(policyPara);
 287             policyPara.dwFlags = 0;
 288             policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
 289             ret = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
 290                 &chainCopy, &policyPara, &policyStatus);
 291             /* Any error in the policy status indicates that the
 292              * policy couldn't be verified.
 293              */
 294             if (ret && policyStatus.dwError)
 295             {
 296                 if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
 297                     err = ERROR_INTERNET_SEC_CERT_CN_INVALID;
 298                 else
 299                     err = ERROR_INTERNET_SEC_INVALID_CERT;
 300             }
 301         }
 302         CertFreeCertificateChain(chain);
 303     }
 304     TRACE("returning %08x\n", err);
 305     return err;
 306 }
 307
 308 static int netconn_secure_verify(int preverify_ok, X509_STORE_CTX *ctx)
 309 {
 310     SSL *ssl;
 311     WCHAR *server;
 312     BOOL ret = FALSE;
 313     HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
 314         CERT_STORE_CREATE_NEW_FLAG, NULL);
 315     netconn_t *conn;
 316
 317     ssl = pX509_STORE_CTX_get_ex_data(ctx,
 318         pSSL_get_ex_data_X509_STORE_CTX_idx());
 319     server = pSSL_get_ex_data(ssl, hostname_idx);
 320     conn = pSSL_get_ex_data(ssl, conn_idx);
 321     if (store)
 322     {
 323         X509 *cert;
 324         int i;
 325         PCCERT_CONTEXT endCert = NULL;
 326         struct stack_st *chain = (struct stack_st *)pX509_STORE_CTX_get_chain( ctx );
 327
 328         ret = TRUE;
 329         for (i = 0; ret && i < psk_num(chain); i++)
 330         {
 331             PCCERT_CONTEXT context;
 332
 333             cert = (X509 *)psk_value(chain, i);
 334             if ((context = X509_to_cert_context(cert)))
 335             {
 336                 ret = CertAddCertificateContextToStore(store, context,
 337                         CERT_STORE_ADD_ALWAYS, i ? NULL : &endCert);
 338                 CertFreeCertificateContext(context);
 339             }
 340         }
 341         if (!endCert) ret = FALSE;
 342         if (ret)
 343         {
 344             DWORD_PTR err = netconn_verify_cert(endCert, store, server,
 345                                                 conn->security_flags);
 346
 347             if (err)
 348             {
 349                 pSSL_set_ex_data(ssl, error_idx, (void *)err);
 350                 ret = FALSE;
 351             }
 352         }
 353         CertFreeCertificateContext(endCert);
 354         CertCloseStore(store, 0);
 355     }
 356     return ret;
 357 }
 358
 359 #endif
 360
 361 static CRITICAL_SECTION init_ssl_cs;
 362 static CRITICAL_SECTION_DEBUG init_ssl_cs_debug =
 363 {
 364     0, 0, &init_ssl_cs,
 365     { &init_ssl_cs_debug.ProcessLocksList,
 366       &init_ssl_cs_debug.ProcessLocksList },
 367     0, 0, { (DWORD_PTR)(__FILE__ ": init_ssl_cs") }
 368 };
 369 static CRITICAL_SECTION init_ssl_cs = { &init_ssl_cs_debug, -1, 0, 0, 0, 0 };
 370
 371 static DWORD init_openssl(void)
 372 {
 373 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 374     int i;
 375
 376     if(OpenSSL_ssl_handle)
 377         return ERROR_SUCCESS;
 378
 379     OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
 380     if(!OpenSSL_ssl_handle) {
 381         ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n", SONAME_LIBSSL);
 382         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 383     }
 384
 385     OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
 386     if(!OpenSSL_crypto_handle) {
 387         ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n", SONAME_LIBCRYPTO);
 388         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 389     }
 390
 391     /* mmm nice ugly macroness */
 392 #define DYNSSL(x) \
 393     p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
 394     if (!p##x) { \
 395         ERR("failed to load symbol %s\n", #x); \
 396         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 397     }
 398
 399     DYNSSL(SSL_library_init);
 400     DYNSSL(SSL_load_error_strings);
 401     DYNSSL(SSLv23_method);
 402     DYNSSL(SSL_CTX_free);
 403     DYNSSL(SSL_CTX_new);
 404     DYNSSL(SSL_new);
 405     DYNSSL(SSL_free);
 406     DYNSSL(SSL_set_fd);
 407     DYNSSL(SSL_connect);
 408     DYNSSL(SSL_shutdown);
 409     DYNSSL(SSL_write);
 410     DYNSSL(SSL_read);
 411     DYNSSL(SSL_pending);
 412     DYNSSL(SSL_get_error);
 413     DYNSSL(SSL_get_ex_new_index);
 414     DYNSSL(SSL_get_ex_data);
 415     DYNSSL(SSL_set_ex_data);
 416     DYNSSL(SSL_get_ex_data_X509_STORE_CTX_idx);
 417     DYNSSL(SSL_get_peer_certificate);
 418     DYNSSL(SSL_CTX_get_timeout);
 419     DYNSSL(SSL_CTX_set_timeout);
 420     DYNSSL(SSL_CTX_set_default_verify_paths);
 421     DYNSSL(SSL_CTX_set_verify);
 422     DYNSSL(SSL_get_current_cipher);
 423     DYNSSL(SSL_CIPHER_get_bits);
 424 #undef DYNSSL
 425
 426 #define DYNCRYPTO(x) \
 427     p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
 428     if (!p##x) { \
 429         ERR("failed to load symbol %s\n", #x); \
 430         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 431     }
 432
 433     DYNCRYPTO(BIO_new_fp);
 434     DYNCRYPTO(CRYPTO_num_locks);
 435     DYNCRYPTO(CRYPTO_set_id_callback);
 436     DYNCRYPTO(CRYPTO_set_locking_callback);
 437     DYNCRYPTO(ERR_free_strings);
 438     DYNCRYPTO(ERR_get_error);
 439     DYNCRYPTO(ERR_error_string);
 440     DYNCRYPTO(X509_STORE_CTX_get_ex_data);
 441     DYNCRYPTO(X509_STORE_CTX_get_chain);
 442     DYNCRYPTO(i2d_X509);
 443     DYNCRYPTO(sk_num);
 444     DYNCRYPTO(sk_value);
 445 #undef DYNCRYPTO
 446
 447     pSSL_library_init();
 448     pSSL_load_error_strings();
 449     pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
 450
 451     meth = pSSLv23_method();
 452     ctx = pSSL_CTX_new(meth);
 453     if(!pSSL_CTX_set_default_verify_paths(ctx)) {
 454         ERR("SSL_CTX_set_default_verify_paths failed: %s\n",
 455             pERR_error_string(pERR_get_error(), 0));
 456         return ERROR_OUTOFMEMORY;
 457     }
 458
 459     hostname_idx = pSSL_get_ex_new_index(0, (void *)"hostname index", NULL, NULL, NULL);
 460     if(hostname_idx == -1) {
 461         ERR("SSL_get_ex_new_index failed; %s\n", pERR_error_string(pERR_get_error(), 0));
 462         return ERROR_OUTOFMEMORY;
 463     }
 464
 465     error_idx = pSSL_get_ex_new_index(0, (void *)"error index", NULL, NULL, NULL);
 466     if(error_idx == -1) {
 467         ERR("SSL_get_ex_new_index failed; %s\n", pERR_error_string(pERR_get_error(), 0));
 468         return ERROR_OUTOFMEMORY;
 469     }
 470
 471     conn_idx = pSSL_get_ex_new_index(0, (void *)"netconn index", NULL, NULL, NULL);
 472     if(conn_idx == -1) {
 473         ERR("SSL_get_ex_new_index failed; %s\n", pERR_error_string(pERR_get_error(), 0));
 474         return ERROR_OUTOFMEMORY;
 475     }
 476
 477     pSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, netconn_secure_verify);
 478
 479     pCRYPTO_set_id_callback(ssl_thread_id);
 480     num_ssl_locks = pCRYPTO_num_locks();
 481     ssl_locks = heap_alloc(num_ssl_locks * sizeof(CRITICAL_SECTION));
 482     if(!ssl_locks)
 483         return ERROR_OUTOFMEMORY;
 484
 485     for(i = 0; i < num_ssl_locks; i++)
 486         InitializeCriticalSection(&ssl_locks[i]);
 487     pCRYPTO_set_locking_callback(ssl_lock_callback);
 488
 489     return ERROR_SUCCESS;
 490 #else
 491     FIXME("can't use SSL, not compiled in.\n");
 492     return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 493 #endif
 494 }
 495
 496 DWORD create_netconn(BOOL useSSL, server_t *server, DWORD security_flags, netconn_t **ret)
 497 {
 498     netconn_t *netconn;
 499     int result, flag;
 500
 501     if(useSSL) {
 502         DWORD res;
 503
 504         TRACE("using SSL connection\n");
 505
 506         EnterCriticalSection(&init_ssl_cs);
 507         res = init_openssl();
 508         LeaveCriticalSection(&init_ssl_cs);
 509         if(res != ERROR_SUCCESS)
 510             return res;
 511     }
 512
 513     netconn = heap_alloc_zero(sizeof(*netconn));
 514     if(!netconn)
 515         return ERROR_OUTOFMEMORY;
 516
 517     netconn->useSSL = useSSL;
 518     netconn->socketFD = -1;
 519     netconn->security_flags = security_flags;
 520     list_init(&netconn->pool_entry);
 521
 522     assert(server->addr_len);
 523     result = netconn->socketFD = socket(server->addr.ss_family, SOCK_STREAM, 0);
 524     if(result != -1) {
 525         result = connect(netconn->socketFD, (struct sockaddr*)&server->addr, server->addr_len);
 526         if(result == -1)
 527             closesocket(netconn->socketFD);
 528     }
 529     if(result == -1) {
 530         heap_free(netconn);
 531         return sock_get_error(errno);
 532     }
 533
 534 #ifdef TCP_NODELAY
 535     flag = 1;
 536     result = setsockopt(netconn->socketFD, IPPROTO_TCP, TCP_NODELAY, (void*)&flag, sizeof(flag));
 537     if(result < 0)
 538         WARN("setsockopt(TCP_NODELAY) failed\n");
 539 #endif
 540
 541     server_addref(server);
 542     netconn->server = server;
 543
 544     *ret = netconn;
 545     return ERROR_SUCCESS;
 546 }
 547
 548 void free_netconn(netconn_t *netconn)
 549 {
 550     server_release(netconn->server);
 551
 552 #ifdef SONAME_LIBSSL
 553     if (netconn->ssl_s) {
 554         pSSL_shutdown(netconn->ssl_s);
 555         pSSL_free(netconn->ssl_s);
 556     }
 557 #endif
 558
 559     closesocket(netconn->socketFD);
 560     heap_free(netconn);
 561 }
 562
 563 void NETCON_unload(void)
 564 {
 565 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 566     if (OpenSSL_crypto_handle)
 567     {
 568         pERR_free_strings();
 569         wine_dlclose(OpenSSL_crypto_handle, NULL, 0);
 570     }
 571     if (OpenSSL_ssl_handle)
 572     {
 573         if (ctx)
 574             pSSL_CTX_free(ctx);
 575         wine_dlclose(OpenSSL_ssl_handle, NULL, 0);
 576     }
 577     if (ssl_locks)
 578     {
 579         int i;
 580         for (i = 0; i < num_ssl_locks; i++) DeleteCriticalSection(&ssl_locks[i]);
 581         heap_free(ssl_locks);
 582     }
 583 #endif
 584 }
 585
 586 /* translate a unix error code into a winsock one */
 587 int sock_get_error( int err )
 588 {
 589 #if !defined(__MINGW32__) && !defined (_MSC_VER)
 590     switch (err)
 591     {
 592         case EINTR:             return WSAEINTR;
 593         case EBADF:             return WSAEBADF;
 594         case EPERM:
 595         case EACCES:            return WSAEACCES;
 596         case EFAULT:            return WSAEFAULT;
 597         case EINVAL:            return WSAEINVAL;
 598         case EMFILE:            return WSAEMFILE;
 599         case EWOULDBLOCK:       return WSAEWOULDBLOCK;
 600         case EINPROGRESS:       return WSAEINPROGRESS;
 601         case EALREADY:          return WSAEALREADY;
 602         case ENOTSOCK:          return WSAENOTSOCK;
 603         case EDESTADDRREQ:      return WSAEDESTADDRREQ;
 604         case EMSGSIZE:          return WSAEMSGSIZE;
 605         case EPROTOTYPE:        return WSAEPROTOTYPE;
 606         case ENOPROTOOPT:       return WSAENOPROTOOPT;
 607         case EPROTONOSUPPORT:   return WSAEPROTONOSUPPORT;
 608         case ESOCKTNOSUPPORT:   return WSAESOCKTNOSUPPORT;
 609         case EOPNOTSUPP:        return WSAEOPNOTSUPP;
 610         case EPFNOSUPPORT:      return WSAEPFNOSUPPORT;
 611         case EAFNOSUPPORT:      return WSAEAFNOSUPPORT;
 612         case EADDRINUSE:        return WSAEADDRINUSE;
 613         case EADDRNOTAVAIL:     return WSAEADDRNOTAVAIL;
 614         case ENETDOWN:          return WSAENETDOWN;
 615         case ENETUNREACH:       return WSAENETUNREACH;
 616         case ENETRESET:         return WSAENETRESET;
 617         case ECONNABORTED:      return WSAECONNABORTED;
 618         case EPIPE:
 619         case ECONNRESET:        return WSAECONNRESET;
 620         case ENOBUFS:           return WSAENOBUFS;
 621         case EISCONN:           return WSAEISCONN;
 622         case ENOTCONN:          return WSAENOTCONN;
 623         case ESHUTDOWN:         return WSAESHUTDOWN;
 624         case ETOOMANYREFS:      return WSAETOOMANYREFS;
 625         case ETIMEDOUT:         return WSAETIMEDOUT;
 626         case ECONNREFUSED:      return WSAECONNREFUSED;
 627         case ELOOP:             return WSAELOOP;
 628         case ENAMETOOLONG:      return WSAENAMETOOLONG;
 629         case EHOSTDOWN:         return WSAEHOSTDOWN;
 630         case EHOSTUNREACH:      return WSAEHOSTUNREACH;
 631         case ENOTEMPTY:         return WSAENOTEMPTY;
 632 #ifdef EPROCLIM
 633         case EPROCLIM:          return WSAEPROCLIM;
 634 #endif
 635 #ifdef EUSERS
 636         case EUSERS:            return WSAEUSERS;
 637 #endif
 638 #ifdef EDQUOT
 639         case EDQUOT:            return WSAEDQUOT;
 640 #endif
 641 #ifdef ESTALE
 642         case ESTALE:            return WSAESTALE;
 643 #endif
 644 #ifdef EREMOTE
 645         case EREMOTE:           return WSAEREMOTE;
 646 #endif
 647     default: errno=err; perror("sock_set_error"); return WSAEFAULT;
 648     }
 649 #endif
 650     return err;
 651 }
 652
 653 /******************************************************************************
 654  * NETCON_secure_connect
 655  * Initiates a secure connection over an existing plaintext connection.
 656  */
 657 DWORD NETCON_secure_connect(netconn_t *connection, LPWSTR hostname)
 658 {
 659     DWORD res = ERROR_NOT_SUPPORTED;
 660 #ifdef SONAME_LIBSSL
 661     void *ssl_s;
 662
 663     /* can't connect if we are already connected */
 664     if (connection->ssl_s)
 665     {
 666         ERR("already connected\n");
 667         return ERROR_INTERNET_CANNOT_CONNECT;
 668     }
 669
 670     ssl_s = pSSL_new(ctx);
 671     if (!ssl_s)
 672     {
 673         ERR("SSL_new failed: %s\n",
 674             pERR_error_string(pERR_get_error(), 0));
 675         return ERROR_OUTOFMEMORY;
 676     }
 677
 678     if (!pSSL_set_fd(ssl_s, connection->socketFD))
 679     {
 680         ERR("SSL_set_fd failed: %s\n",
 681             pERR_error_string(pERR_get_error(), 0));
 682         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 683         goto fail;
 684     }
 685
 686     if (!pSSL_set_ex_data(ssl_s, hostname_idx, hostname))
 687     {
 688         ERR("SSL_set_ex_data failed: %s\n",
 689             pERR_error_string(pERR_get_error(), 0));
 690         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 691         goto fail;
 692     }
 693     if (!pSSL_set_ex_data(ssl_s, conn_idx, connection))
 694     {
 695         ERR("SSL_set_ex_data failed: %s\n",
 696             pERR_error_string(pERR_get_error(), 0));
 697         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 698         goto fail;
 699     }
 700     if (pSSL_connect(ssl_s) <= 0)
 701     {
 702         res = (DWORD_PTR)pSSL_get_ex_data(ssl_s, error_idx);
 703         if (!res)
 704             res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 705         ERR("SSL_connect failed: %d\n", res);
 706         goto fail;
 707     }
 708
 709     connection->ssl_s = ssl_s;
 710     return ERROR_SUCCESS;
 711
 712 fail:
 713     if (ssl_s)
 714     {
 715         pSSL_shutdown(ssl_s);
 716         pSSL_free(ssl_s);
 717     }
 718 #endif
 719     return res;
 720 }
 721
 722 /******************************************************************************
 723  * NETCON_send
 724  * Basically calls 'send()' unless we should use SSL
 725  * number of chars send is put in *sent
 726  */
 727 DWORD NETCON_send(netconn_t *connection, const void *msg, size_t len, int flags,
 728                 int *sent /* out */)
 729 {
 730     if (!connection->useSSL)
 731     {
 732         *sent = send(connection->socketFD, msg, len, flags);
 733         if (*sent == -1)
 734             return sock_get_error(errno);
 735         return ERROR_SUCCESS;
 736     }
 737     else
 738     {
 739 #ifdef SONAME_LIBSSL
 740         if(!connection->ssl_s) {
 741             FIXME("not connected\n");
 742             return ERROR_NOT_SUPPORTED;
 743         }
 744         if (flags)
 745             FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
 746         *sent = pSSL_write(connection->ssl_s, msg, len);
 747         if (*sent < 1 && len)
 748             return ERROR_INTERNET_CONNECTION_ABORTED;
 749         return ERROR_SUCCESS;
 750 #else
 751         return ERROR_NOT_SUPPORTED;
 752 #endif
 753     }
 754 }
 755
 756 /******************************************************************************
 757  * NETCON_recv
 758  * Basically calls 'recv()' unless we should use SSL
 759  * number of chars received is put in *recvd
 760  */
 761 DWORD NETCON_recv(netconn_t *connection, void *buf, size_t len, int flags,
 762                 int *recvd /* out */)
 763 {
 764     *recvd = 0;
 765     if (!len)
 766         return ERROR_SUCCESS;
 767     if (!connection->useSSL)
 768     {
 769         *recvd = recv(connection->socketFD, buf, len, flags);
 770         return *recvd == -1 ? sock_get_error(errno) :  ERROR_SUCCESS;
 771     }
 772     else
 773     {
 774 #ifdef SONAME_LIBSSL
 775         if(!connection->ssl_s) {
 776             FIXME("not connected\n");
 777             return ERROR_NOT_SUPPORTED;
 778         }
 779         *recvd = pSSL_read(connection->ssl_s, buf, len);
 780
 781         /* Check if EOF was received */
 782         if(!*recvd && (pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_ZERO_RETURN
 783                     || pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_SYSCALL))
 784             return ERROR_SUCCESS;
 785
 786         return *recvd > 0 ? ERROR_SUCCESS : ERROR_INTERNET_CONNECTION_ABORTED;
 787 #else
 788         return ERROR_NOT_SUPPORTED;
 789 #endif
 790     }
 791 }
 792
 793 /******************************************************************************
 794  * NETCON_query_data_available
 795  * Returns the number of bytes of peeked data plus the number of bytes of
 796  * queued, but unread data.
 797  */
 798 BOOL NETCON_query_data_available(netconn_t *connection, DWORD *available)
 799 {
 800     *available = 0;
 801
 802     if (!connection->useSSL)
 803     {
 804 #ifdef FIONREAD
 805         int unread;
 806         int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
 807         if (!retval)
 808         {
 809             TRACE("%d bytes of queued, but unread data\n", unread);
 810             *available += unread;
 811         }
 812 #endif
 813     }
 814     else
 815     {
 816 #ifdef SONAME_LIBSSL
 817         *available = connection->ssl_s ? pSSL_pending(connection->ssl_s) : 0;
 818 #endif
 819     }
 820     return TRUE;
 821 }
 822
 823 BOOL NETCON_is_alive(netconn_t *netconn)
 824 {
 825 #ifdef MSG_DONTWAIT
 826     ssize_t len;
 827     BYTE b;
 828
 829     len = recv(netconn->socketFD, &b, 1, MSG_PEEK|MSG_DONTWAIT);
 830     return len == 1 || (len == -1 && errno == EWOULDBLOCK);
 831 #elif defined(__MINGW32__) || defined(_MSC_VER)
 832     ULONG mode;
 833     int len;
 834     char b;
 835
 836     mode = 1;
 837     if(!ioctlsocket(netconn->socketFD, FIONBIO, &mode))
 838         return FALSE;
 839
 840     len = recv(netconn->socketFD, &b, 1, MSG_PEEK);
 841
 842     mode = 0;
 843     if(!ioctlsocket(netconn->socketFD, FIONBIO, &mode))
 844         return FALSE;
 845
 846     return len == 1 || (len == -1 && errno == WSAEWOULDBLOCK);
 847 #else
 848     FIXME("not supported on this platform\n");
 849     return TRUE;
 850 #endif
 851 }
 852
 853 LPCVOID NETCON_GetCert(netconn_t *connection)
 854 {
 855 #ifdef SONAME_LIBSSL
 856     X509* cert;
 857     LPCVOID r = NULL;
 858
 859     if (!connection->ssl_s)
 860         return NULL;
 861
 862     cert = pSSL_get_peer_certificate(connection->ssl_s);
 863     r = X509_to_cert_context(cert);
 864     return r;
 865 #else
 866     return NULL;
 867 #endif
 868 }
 869
 870 int NETCON_GetCipherStrength(netconn_t *connection)
 871 {
 872 #ifdef SONAME_LIBSSL
 873 #if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x0090707f)
 874     const SSL_CIPHER *cipher;
 875 #else
 876     SSL_CIPHER *cipher;
 877 #endif
 878     int bits = 0;
 879
 880     if (!connection->ssl_s)
 881         return 0;
 882     cipher = pSSL_get_current_cipher(connection->ssl_s);
 883     if (!cipher)
 884         return 0;
 885     pSSL_CIPHER_get_bits(cipher, &bits);
 886     return bits;
 887 #else
 888     return 0;
 889 #endif
 890 }
 891
 892 DWORD NETCON_set_timeout(netconn_t *connection, BOOL send, int value)
 893 {
 894     int result;
 895     struct timeval tv;
 896
 897     /* value is in milliseconds, convert to struct timeval */
 898     tv.tv_sec = value / 1000;
 899     tv.tv_usec = (value % 1000) * 1000;
 900
 901     result = setsockopt(connection->socketFD, SOL_SOCKET,
 902                         send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv,
 903                         sizeof(tv));
 904
 905     if (result == -1)
 906     {
 907         WARN("setsockopt failed (%s)\n", strerror(errno));
 908         return sock_get_error(errno);
 909     }
 910
 911     return ERROR_SUCCESS;
 912 }