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