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 #undef FAR
  64 #undef DSA
  65 #endif
  66
  67 #include <stdarg.h>
  68 #include <stdlib.h>
  69 #include <string.h>
  70 #include <stdio.h>
  71 #include <errno.h>
  72
  73 #include "wine/library.h"
  74 #include "windef.h"
  75 #include "winbase.h"
  76 #include "wininet.h"
  77 #include "winerror.h"
  78 #include "wincrypt.h"
  79
  80 #include "wine/debug.h"
  81 #include "internet.h"
  82
  83 /* To avoid conflicts with the Unix socket headers. we only need it for
  84  * the error codes anyway. */
  85 #define USE_WS_PREFIX
  86 #include "winsock2.h"
  87
  88 #define RESPONSE_TIMEOUT        30            /* FROM internet.c */
  89
  90
  91 WINE_DEFAULT_DEBUG_CHANNEL(wininet);
  92
  93 /* FIXME!!!!!!
  94  *    This should use winsock - To use winsock the functions will have to change a bit
  95  *        as they are designed for unix sockets.
  96  *    SSL stuff should use crypt32.dll
  97  */
  98
  99 #ifdef SONAME_LIBSSL
 100
 101 #include <openssl/err.h>
 102
 103 static CRITICAL_SECTION init_ssl_cs;
 104 static CRITICAL_SECTION_DEBUG init_ssl_cs_debug =
 105 {
 106     0, 0, &init_ssl_cs,
 107     { &init_ssl_cs_debug.ProcessLocksList,
 108       &init_ssl_cs_debug.ProcessLocksList },
 109     0, 0, { (DWORD_PTR)(__FILE__ ": init_ssl_cs") }
 110 };
 111 static CRITICAL_SECTION init_ssl_cs = { &init_ssl_cs_debug, -1, 0, 0, 0, 0 };
 112
 113 static void *OpenSSL_ssl_handle;
 114 static void *OpenSSL_crypto_handle;
 115
 116 static SSL_METHOD *meth;
 117 static SSL_CTX *ctx;
 118 static int hostname_idx;
 119 static int error_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_verify_result);
 143 MAKE_FUNCPTR(SSL_get_peer_certificate);
 144 MAKE_FUNCPTR(SSL_CTX_get_timeout);
 145 MAKE_FUNCPTR(SSL_CTX_set_timeout);
 146 MAKE_FUNCPTR(SSL_CTX_set_default_verify_paths);
 147 MAKE_FUNCPTR(SSL_CTX_set_verify);
 148 MAKE_FUNCPTR(X509_STORE_CTX_get_ex_data);
 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(i2d_X509);
 159 MAKE_FUNCPTR(sk_num);
 160 MAKE_FUNCPTR(sk_value);
 161 #undef MAKE_FUNCPTR
 162
 163 static CRITICAL_SECTION *ssl_locks;
 164 static unsigned int num_ssl_locks;
 165
 166 static unsigned long ssl_thread_id(void)
 167 {
 168     return GetCurrentThreadId();
 169 }
 170
 171 static void ssl_lock_callback(int mode, int type, const char *file, int line)
 172 {
 173     if (mode & CRYPTO_LOCK)
 174         EnterCriticalSection(&ssl_locks[type]);
 175     else
 176         LeaveCriticalSection(&ssl_locks[type]);
 177 }
 178
 179 static PCCERT_CONTEXT X509_to_cert_context(X509 *cert)
 180 {
 181     unsigned char* buffer,*p;
 182     INT len;
 183     BOOL malloced = FALSE;
 184     PCCERT_CONTEXT ret;
 185
 186     p = NULL;
 187     len = pi2d_X509(cert,&p);
 188     /*
 189      * SSL 0.9.7 and above malloc the buffer if it is null.
 190      * however earlier version do not and so we would need to alloc the buffer.
 191      *
 192      * see the i2d_X509 man page for more details.
 193      */
 194     if (!p)
 195     {
 196         buffer = HeapAlloc(GetProcessHeap(),0,len);
 197         p = buffer;
 198         len = pi2d_X509(cert,&p);
 199     }
 200     else
 201     {
 202         buffer = p;
 203         malloced = TRUE;
 204     }
 205
 206     ret = CertCreateCertificateContext(X509_ASN_ENCODING,buffer,len);
 207
 208     if (malloced)
 209         free(buffer);
 210     else
 211         HeapFree(GetProcessHeap(),0,buffer);
 212
 213     return ret;
 214 }
 215
 216 static DWORD netconn_verify_cert(PCCERT_CONTEXT cert, HCERTSTORE store,
 217     WCHAR *server)
 218 {
 219     BOOL ret;
 220     CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
 221     PCCERT_CHAIN_CONTEXT chain;
 222     char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
 223     char *server_auth[] = { oid_server_auth };
 224     DWORD err = ERROR_SUCCESS;
 225
 226     TRACE("verifying %s\n", debugstr_w(server));
 227     chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
 228     chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
 229     if ((ret = CertGetCertificateChain(NULL, cert, NULL, store, &chainPara, 0,
 230         NULL, &chain)))
 231     {
 232         if (chain->TrustStatus.dwErrorStatus)
 233         {
 234             if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
 235                 err = ERROR_INTERNET_SEC_CERT_DATE_INVALID;
 236             else if (chain->TrustStatus.dwErrorStatus &
 237                      CERT_TRUST_IS_UNTRUSTED_ROOT)
 238                 err = ERROR_INTERNET_INVALID_CA;
 239             else if ((chain->TrustStatus.dwErrorStatus &
 240                       CERT_TRUST_IS_OFFLINE_REVOCATION) ||
 241                      (chain->TrustStatus.dwErrorStatus &
 242                       CERT_TRUST_REVOCATION_STATUS_UNKNOWN))
 243                 err = ERROR_INTERNET_SEC_CERT_NO_REV;
 244             else if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED)
 245                 err = ERROR_INTERNET_SEC_CERT_REVOKED;
 246             else if (chain->TrustStatus.dwErrorStatus &
 247                 CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
 248                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 249             else
 250                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 251         }
 252         else
 253         {
 254             CERT_CHAIN_POLICY_PARA policyPara;
 255             SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
 256             CERT_CHAIN_POLICY_STATUS policyStatus;
 257
 258             sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
 259             sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
 260             sslExtraPolicyPara.pwszServerName = server;
 261             policyPara.cbSize = sizeof(policyPara);
 262             policyPara.dwFlags = 0;
 263             policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
 264             ret = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
 265                 chain, &policyPara, &policyStatus);
 266             /* Any error in the policy status indicates that the
 267              * policy couldn't be verified.
 268              */
 269             if (ret && policyStatus.dwError)
 270             {
 271                 if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
 272                     err = ERROR_INTERNET_SEC_CERT_CN_INVALID;
 273                 else
 274                     err = ERROR_INTERNET_SEC_INVALID_CERT;
 275             }
 276         }
 277         CertFreeCertificateChain(chain);
 278     }
 279     TRACE("returning %08x\n", err);
 280     return err;
 281 }
 282
 283 static int netconn_secure_verify(int preverify_ok, X509_STORE_CTX *ctx)
 284 {
 285     SSL *ssl;
 286     WCHAR *server;
 287     BOOL ret = FALSE;
 288
 289     ssl = pX509_STORE_CTX_get_ex_data(ctx,
 290         pSSL_get_ex_data_X509_STORE_CTX_idx());
 291     server = pSSL_get_ex_data(ssl, hostname_idx);
 292     if (preverify_ok)
 293     {
 294         HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
 295             CERT_STORE_CREATE_NEW_FLAG, NULL);
 296
 297         if (store)
 298         {
 299             X509 *cert;
 300             int i;
 301             PCCERT_CONTEXT endCert = NULL;
 302
 303             ret = TRUE;
 304             for (i = 0; ret && i < psk_num((struct stack_st *)ctx->chain); i++)
 305             {
 306                 PCCERT_CONTEXT context;
 307
 308                 cert = (X509 *)psk_value((struct stack_st *)ctx->chain, i);
 309                 if ((context = X509_to_cert_context(cert)))
 310                 {
 311                     if (i == 0)
 312                         ret = CertAddCertificateContextToStore(store, context,
 313                             CERT_STORE_ADD_ALWAYS, &endCert);
 314                     else
 315                         ret = CertAddCertificateContextToStore(store, context,
 316                             CERT_STORE_ADD_ALWAYS, NULL);
 317                     CertFreeCertificateContext(context);
 318                 }
 319             }
 320             if (!endCert) ret = FALSE;
 321             if (ret)
 322             {
 323                 DWORD_PTR err = netconn_verify_cert(endCert, store, server);
 324
 325                 if (err)
 326                 {
 327                     pSSL_set_ex_data(ssl, error_idx, (void *)err);
 328                     ret = FALSE;
 329                 }
 330             }
 331             CertFreeCertificateContext(endCert);
 332             CertCloseStore(store, 0);
 333         }
 334     } else
 335         pSSL_set_ex_data(ssl, error_idx, (void *)ERROR_INTERNET_SEC_CERT_ERRORS);
 336
 337     return ret;
 338 }
 339
 340 #endif
 341
 342 DWORD NETCON_init(WININET_NETCONNECTION *connection, BOOL useSSL)
 343 {
 344     connection->useSSL = FALSE;
 345     connection->socketFD = -1;
 346     if (useSSL)
 347     {
 348 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 349         int i;
 350
 351         TRACE("using SSL connection\n");
 352         EnterCriticalSection(&init_ssl_cs);
 353         if (OpenSSL_ssl_handle) /* already initialized everything */
 354         {
 355             LeaveCriticalSection(&init_ssl_cs);
 356             return ERROR_SUCCESS;
 357         }
 358         OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
 359         if (!OpenSSL_ssl_handle)
 360         {
 361             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 362                 SONAME_LIBSSL);
 363             LeaveCriticalSection(&init_ssl_cs);
 364             return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 365         }
 366         OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
 367         if (!OpenSSL_crypto_handle)
 368         {
 369             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 370                 SONAME_LIBCRYPTO);
 371             LeaveCriticalSection(&init_ssl_cs);
 372             return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 373         }
 374
 375         /* mmm nice ugly macroness */
 376 #define DYNSSL(x) \
 377     p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
 378     if (!p##x) \
 379     { \
 380         ERR("failed to load symbol %s\n", #x); \
 381         LeaveCriticalSection(&init_ssl_cs); \
 382         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 383     }
 384
 385         DYNSSL(SSL_library_init);
 386         DYNSSL(SSL_load_error_strings);
 387         DYNSSL(SSLv23_method);
 388         DYNSSL(SSL_CTX_free);
 389         DYNSSL(SSL_CTX_new);
 390         DYNSSL(SSL_new);
 391         DYNSSL(SSL_free);
 392         DYNSSL(SSL_set_fd);
 393         DYNSSL(SSL_connect);
 394         DYNSSL(SSL_shutdown);
 395         DYNSSL(SSL_write);
 396         DYNSSL(SSL_read);
 397         DYNSSL(SSL_pending);
 398         DYNSSL(SSL_get_error);
 399         DYNSSL(SSL_get_ex_new_index);
 400         DYNSSL(SSL_get_ex_data);
 401         DYNSSL(SSL_set_ex_data);
 402         DYNSSL(SSL_get_ex_data_X509_STORE_CTX_idx);
 403         DYNSSL(SSL_get_verify_result);
 404         DYNSSL(SSL_get_peer_certificate);
 405         DYNSSL(SSL_CTX_get_timeout);
 406         DYNSSL(SSL_CTX_set_timeout);
 407         DYNSSL(SSL_CTX_set_default_verify_paths);
 408         DYNSSL(SSL_CTX_set_verify);
 409         DYNSSL(X509_STORE_CTX_get_ex_data);
 410 #undef DYNSSL
 411
 412 #define DYNCRYPTO(x) \
 413     p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
 414     if (!p##x) \
 415     { \
 416         ERR("failed to load symbol %s\n", #x); \
 417         LeaveCriticalSection(&init_ssl_cs); \
 418         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 419     }
 420         DYNCRYPTO(BIO_new_fp);
 421         DYNCRYPTO(CRYPTO_num_locks);
 422         DYNCRYPTO(CRYPTO_set_id_callback);
 423         DYNCRYPTO(CRYPTO_set_locking_callback);
 424         DYNCRYPTO(ERR_free_strings);
 425         DYNCRYPTO(ERR_get_error);
 426         DYNCRYPTO(ERR_error_string);
 427         DYNCRYPTO(i2d_X509);
 428         DYNCRYPTO(sk_num);
 429         DYNCRYPTO(sk_value);
 430 #undef DYNCRYPTO
 431
 432         pSSL_library_init();
 433         pSSL_load_error_strings();
 434         pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
 435
 436         meth = pSSLv23_method();
 437         ctx = pSSL_CTX_new(meth);
 438         if (!pSSL_CTX_set_default_verify_paths(ctx))
 439         {
 440             ERR("SSL_CTX_set_default_verify_paths failed: %s\n",
 441                 pERR_error_string(pERR_get_error(), 0));
 442             LeaveCriticalSection(&init_ssl_cs);
 443             return ERROR_OUTOFMEMORY;
 444         }
 445         hostname_idx = pSSL_get_ex_new_index(0, (void *)"hostname index",
 446                 NULL, NULL, NULL);
 447         if (hostname_idx == -1)
 448         {
 449             ERR("SSL_get_ex_new_index failed; %s\n",
 450                 pERR_error_string(pERR_get_error(), 0));
 451             LeaveCriticalSection(&init_ssl_cs);
 452             return ERROR_OUTOFMEMORY;
 453         }
 454         error_idx = pSSL_get_ex_new_index(0, (void *)"error index",
 455                 NULL, NULL, NULL);
 456         if (error_idx == -1)
 457         {
 458             ERR("SSL_get_ex_new_index failed; %s\n",
 459                 pERR_error_string(pERR_get_error(), 0));
 460             LeaveCriticalSection(&init_ssl_cs);
 461             return ERROR_OUTOFMEMORY;
 462         }
 463         pSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, netconn_secure_verify);
 464
 465         pCRYPTO_set_id_callback(ssl_thread_id);
 466         num_ssl_locks = pCRYPTO_num_locks();
 467         ssl_locks = HeapAlloc(GetProcessHeap(), 0, num_ssl_locks * sizeof(CRITICAL_SECTION));
 468         if (!ssl_locks)
 469         {
 470             LeaveCriticalSection(&init_ssl_cs);
 471             return ERROR_OUTOFMEMORY;
 472         }
 473         for (i = 0; i < num_ssl_locks; i++)
 474             InitializeCriticalSection(&ssl_locks[i]);
 475         pCRYPTO_set_locking_callback(ssl_lock_callback);
 476         LeaveCriticalSection(&init_ssl_cs);
 477 #else
 478         FIXME("can't use SSL, not compiled in.\n");
 479         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 480 #endif
 481     }
 482     return ERROR_SUCCESS;
 483 }
 484
 485 void NETCON_unload(void)
 486 {
 487 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 488     if (OpenSSL_crypto_handle)
 489     {
 490         pERR_free_strings();
 491         wine_dlclose(OpenSSL_crypto_handle, NULL, 0);
 492     }
 493     if (OpenSSL_ssl_handle)
 494     {
 495         if (ctx)
 496             pSSL_CTX_free(ctx);
 497         wine_dlclose(OpenSSL_ssl_handle, NULL, 0);
 498     }
 499     if (ssl_locks)
 500     {
 501         int i;
 502         for (i = 0; i < num_ssl_locks; i++) DeleteCriticalSection(&ssl_locks[i]);
 503         HeapFree(GetProcessHeap(), 0, ssl_locks);
 504     }
 505 #endif
 506 }
 507
 508 BOOL NETCON_connected(WININET_NETCONNECTION *connection)
 509 {
 510     if (connection->socketFD == -1)
 511         return FALSE;
 512     else
 513         return TRUE;
 514 }
 515
 516 /* translate a unix error code into a winsock one */
 517 int sock_get_error( int err )
 518 {
 519 #if !defined(__MINGW32__) && !defined (_MSC_VER)
 520     switch (err)
 521     {
 522         case EINTR:             return WSAEINTR;
 523         case EBADF:             return WSAEBADF;
 524         case EPERM:
 525         case EACCES:            return WSAEACCES;
 526         case EFAULT:            return WSAEFAULT;
 527         case EINVAL:            return WSAEINVAL;
 528         case EMFILE:            return WSAEMFILE;
 529         case EWOULDBLOCK:       return WSAEWOULDBLOCK;
 530         case EINPROGRESS:       return WSAEINPROGRESS;
 531         case EALREADY:          return WSAEALREADY;
 532         case ENOTSOCK:          return WSAENOTSOCK;
 533         case EDESTADDRREQ:      return WSAEDESTADDRREQ;
 534         case EMSGSIZE:          return WSAEMSGSIZE;
 535         case EPROTOTYPE:        return WSAEPROTOTYPE;
 536         case ENOPROTOOPT:       return WSAENOPROTOOPT;
 537         case EPROTONOSUPPORT:   return WSAEPROTONOSUPPORT;
 538         case ESOCKTNOSUPPORT:   return WSAESOCKTNOSUPPORT;
 539         case EOPNOTSUPP:        return WSAEOPNOTSUPP;
 540         case EPFNOSUPPORT:      return WSAEPFNOSUPPORT;
 541         case EAFNOSUPPORT:      return WSAEAFNOSUPPORT;
 542         case EADDRINUSE:        return WSAEADDRINUSE;
 543         case EADDRNOTAVAIL:     return WSAEADDRNOTAVAIL;
 544         case ENETDOWN:          return WSAENETDOWN;
 545         case ENETUNREACH:       return WSAENETUNREACH;
 546         case ENETRESET:         return WSAENETRESET;
 547         case ECONNABORTED:      return WSAECONNABORTED;
 548         case EPIPE:
 549         case ECONNRESET:        return WSAECONNRESET;
 550         case ENOBUFS:           return WSAENOBUFS;
 551         case EISCONN:           return WSAEISCONN;
 552         case ENOTCONN:          return WSAENOTCONN;
 553         case ESHUTDOWN:         return WSAESHUTDOWN;
 554         case ETOOMANYREFS:      return WSAETOOMANYREFS;
 555         case ETIMEDOUT:         return WSAETIMEDOUT;
 556         case ECONNREFUSED:      return WSAECONNREFUSED;
 557         case ELOOP:             return WSAELOOP;
 558         case ENAMETOOLONG:      return WSAENAMETOOLONG;
 559         case EHOSTDOWN:         return WSAEHOSTDOWN;
 560         case EHOSTUNREACH:      return WSAEHOSTUNREACH;
 561         case ENOTEMPTY:         return WSAENOTEMPTY;
 562 #ifdef EPROCLIM
 563         case EPROCLIM:          return WSAEPROCLIM;
 564 #endif
 565 #ifdef EUSERS
 566         case EUSERS:            return WSAEUSERS;
 567 #endif
 568 #ifdef EDQUOT
 569         case EDQUOT:            return WSAEDQUOT;
 570 #endif
 571 #ifdef ESTALE
 572         case ESTALE:            return WSAESTALE;
 573 #endif
 574 #ifdef EREMOTE
 575         case EREMOTE:           return WSAEREMOTE;
 576 #endif
 577     default: errno=err; perror("sock_set_error"); return WSAEFAULT;
 578     }
 579 #endif
 580     return err;
 581 }
 582
 583 /******************************************************************************
 584  * NETCON_create
 585  * Basically calls 'socket()'
 586  */
 587 DWORD NETCON_create(WININET_NETCONNECTION *connection, int domain,
 588               int type, int protocol)
 589 {
 590 #ifdef SONAME_LIBSSL
 591     if (connection->useSSL)
 592         return ERROR_NOT_SUPPORTED;
 593 #endif
 594
 595     connection->socketFD = socket(domain, type, protocol);
 596     if (connection->socketFD == -1)
 597         return sock_get_error(errno);
 598
 599     return ERROR_SUCCESS;
 600 }
 601
 602 /******************************************************************************
 603  * NETCON_close
 604  * Basically calls 'close()' unless we should use SSL
 605  */
 606 DWORD NETCON_close(WININET_NETCONNECTION *connection)
 607 {
 608     int result;
 609
 610     if (!NETCON_connected(connection)) return ERROR_SUCCESS;
 611
 612 #ifdef SONAME_LIBSSL
 613     if (connection->useSSL)
 614     {
 615         pSSL_shutdown(connection->ssl_s);
 616         pSSL_free(connection->ssl_s);
 617         connection->ssl_s = NULL;
 618
 619         connection->useSSL = FALSE;
 620     }
 621 #endif
 622
 623     result = closesocket(connection->socketFD);
 624     connection->socketFD = -1;
 625
 626     if (result == -1)
 627         return sock_get_error(errno);
 628     return ERROR_SUCCESS;
 629 }
 630
 631 /******************************************************************************
 632  * NETCON_secure_connect
 633  * Initiates a secure connection over an existing plaintext connection.
 634  */
 635 DWORD NETCON_secure_connect(WININET_NETCONNECTION *connection, LPWSTR hostname)
 636 {
 637     DWORD res = ERROR_NOT_SUPPORTED;
 638 #ifdef SONAME_LIBSSL
 639     long verify_res;
 640     X509 *cert;
 641
 642     /* can't connect if we are already connected */
 643     if (connection->useSSL)
 644     {
 645         ERR("already connected\n");
 646         return ERROR_INTERNET_CANNOT_CONNECT;
 647     }
 648
 649     connection->ssl_s = pSSL_new(ctx);
 650     if (!connection->ssl_s)
 651     {
 652         ERR("SSL_new failed: %s\n",
 653             pERR_error_string(pERR_get_error(), 0));
 654         res = ERROR_OUTOFMEMORY;
 655         goto fail;
 656     }
 657
 658     if (!pSSL_set_fd(connection->ssl_s, connection->socketFD))
 659     {
 660         ERR("SSL_set_fd failed: %s\n",
 661             pERR_error_string(pERR_get_error(), 0));
 662         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 663         goto fail;
 664     }
 665
 666     if (pSSL_connect(connection->ssl_s) <= 0)
 667     {
 668         res = (DWORD_PTR)pSSL_get_ex_data(connection->ssl_s, error_idx);
 669         if (!res)
 670             res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 671         ERR("SSL_connect failed: %d\n", res);
 672         goto fail;
 673     }
 674     pSSL_set_ex_data(connection->ssl_s, hostname_idx, hostname);
 675     cert = pSSL_get_peer_certificate(connection->ssl_s);
 676     if (!cert)
 677     {
 678         ERR("no certificate for server %s\n", debugstr_w(hostname));
 679         /* FIXME: is this the best error? */
 680         res = ERROR_INTERNET_INVALID_CA;
 681         goto fail;
 682     }
 683     verify_res = pSSL_get_verify_result(connection->ssl_s);
 684     if (verify_res != X509_V_OK)
 685     {
 686         ERR("couldn't verify the security of the connection, %ld\n", verify_res);
 687         /* FIXME: we should set an error and return, but we only warn at
 688          * the moment */
 689     }
 690
 691     connection->useSSL = TRUE;
 692     return ERROR_SUCCESS;
 693
 694 fail:
 695     if (connection->ssl_s)
 696     {
 697         pSSL_shutdown(connection->ssl_s);
 698         pSSL_free(connection->ssl_s);
 699         connection->ssl_s = NULL;
 700     }
 701 #endif
 702     return res;
 703 }
 704
 705 /******************************************************************************
 706  * NETCON_connect
 707  * Connects to the specified address.
 708  */
 709 DWORD NETCON_connect(WININET_NETCONNECTION *connection, const struct sockaddr *serv_addr,
 710                     unsigned int addrlen)
 711 {
 712     int result;
 713
 714     result = connect(connection->socketFD, serv_addr, addrlen);
 715     if (result == -1)
 716     {
 717         WARN("Unable to connect to host (%s)\n", strerror(errno));
 718
 719         closesocket(connection->socketFD);
 720         connection->socketFD = -1;
 721         return sock_get_error(errno);
 722     }
 723
 724     return ERROR_SUCCESS;
 725 }
 726
 727 /******************************************************************************
 728  * NETCON_send
 729  * Basically calls 'send()' unless we should use SSL
 730  * number of chars send is put in *sent
 731  */
 732 DWORD NETCON_send(WININET_NETCONNECTION *connection, const void *msg, size_t len, int flags,
 733                 int *sent /* out */)
 734 {
 735     if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
 736     if (!connection->useSSL)
 737     {
 738         *sent = send(connection->socketFD, msg, len, flags);
 739         if (*sent == -1)
 740             return sock_get_error(errno);
 741         return ERROR_SUCCESS;
 742     }
 743     else
 744     {
 745 #ifdef SONAME_LIBSSL
 746         if (flags)
 747             FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
 748         *sent = pSSL_write(connection->ssl_s, msg, len);
 749         if (*sent < 1 && len)
 750             return ERROR_INTERNET_CONNECTION_ABORTED;
 751         return ERROR_SUCCESS;
 752 #else
 753         return ERROR_NOT_SUPPORTED;
 754 #endif
 755     }
 756 }
 757
 758 /******************************************************************************
 759  * NETCON_recv
 760  * Basically calls 'recv()' unless we should use SSL
 761  * number of chars received is put in *recvd
 762  */
 763 DWORD NETCON_recv(WININET_NETCONNECTION *connection, void *buf, size_t len, int flags,
 764                 int *recvd /* out */)
 765 {
 766     *recvd = 0;
 767     if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
 768     if (!len)
 769         return ERROR_SUCCESS;
 770     if (!connection->useSSL)
 771     {
 772         *recvd = recv(connection->socketFD, buf, len, flags);
 773         if(!*recvd)
 774             NETCON_close(connection);
 775         return *recvd == -1 ? sock_get_error(errno) :  ERROR_SUCCESS;
 776     }
 777     else
 778     {
 779 #ifdef SONAME_LIBSSL
 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             NETCON_close(connection);
 786             return ERROR_SUCCESS;
 787         }
 788
 789         return *recvd > 0 ? ERROR_SUCCESS : ERROR_INTERNET_CONNECTION_ABORTED;
 790 #else
 791         return ERROR_NOT_SUPPORTED;
 792 #endif
 793     }
 794 }
 795
 796 /******************************************************************************
 797  * NETCON_query_data_available
 798  * Returns the number of bytes of peeked data plus the number of bytes of
 799  * queued, but unread data.
 800  */
 801 BOOL NETCON_query_data_available(WININET_NETCONNECTION *connection, DWORD *available)
 802 {
 803     *available = 0;
 804     if (!NETCON_connected(connection))
 805         return FALSE;
 806
 807     if (!connection->useSSL)
 808     {
 809 #ifdef FIONREAD
 810         int unread;
 811         int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
 812         if (!retval)
 813         {
 814             TRACE("%d bytes of queued, but unread data\n", unread);
 815             *available += unread;
 816         }
 817 #endif
 818     }
 819     else
 820     {
 821 #ifdef SONAME_LIBSSL
 822         *available = pSSL_pending(connection->ssl_s);
 823 #endif
 824     }
 825     return TRUE;
 826 }
 827
 828 LPCVOID NETCON_GetCert(WININET_NETCONNECTION *connection)
 829 {
 830 #ifdef SONAME_LIBSSL
 831     X509* cert;
 832     LPCVOID r = NULL;
 833
 834     if (!connection->useSSL)
 835         return NULL;
 836
 837     cert = pSSL_get_peer_certificate(connection->ssl_s);
 838     r = X509_to_cert_context(cert);
 839     return r;
 840 #else
 841     return NULL;
 842 #endif
 843 }
 844
 845 DWORD NETCON_set_timeout(WININET_NETCONNECTION *connection, BOOL send, int value)
 846 {
 847     int result;
 848     struct timeval tv;
 849
 850     /* FIXME: we should probably store the timeout in the connection to set
 851      * when we do connect */
 852     if (!NETCON_connected(connection))
 853         return ERROR_SUCCESS;
 854
 855     /* value is in milliseconds, convert to struct timeval */
 856     tv.tv_sec = value / 1000;
 857     tv.tv_usec = (value % 1000) * 1000;
 858
 859     result = setsockopt(connection->socketFD, SOL_SOCKET,
 860                         send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv,
 861                         sizeof(tv));
 862
 863     if (result == -1)
 864     {
 865         WARN("setsockopt failed (%s)\n", strerror(errno));
 866         return sock_get_error(errno);
 867     }
 868
 869     return ERROR_SUCCESS;
 870 }