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;
 232
 233     TRACE("verifying %s\n", debugstr_w(server));
 234     chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
 235     chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
 236     if ((ret = CertGetCertificateChain(NULL, cert, NULL, store, &chainPara, 0,
 237         NULL, &chain)))
 238     {
 239         if (chain->TrustStatus.dwErrorStatus)
 240         {
 241             static const DWORD supportedErrors =
 242                 CERT_TRUST_IS_NOT_TIME_VALID |
 243                 CERT_TRUST_IS_UNTRUSTED_ROOT |
 244                 CERT_TRUST_IS_OFFLINE_REVOCATION |
 245                 CERT_TRUST_REVOCATION_STATUS_UNKNOWN |
 246                 CERT_TRUST_IS_REVOKED |
 247                 CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
 248
 249             if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
 250                 err = ERROR_INTERNET_SEC_CERT_DATE_INVALID;
 251             else if (chain->TrustStatus.dwErrorStatus &
 252                      CERT_TRUST_IS_UNTRUSTED_ROOT &&
 253                      !(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
 254                 err = ERROR_INTERNET_INVALID_CA;
 255             else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
 256                      ((chain->TrustStatus.dwErrorStatus &
 257                       CERT_TRUST_IS_OFFLINE_REVOCATION) ||
 258                       (chain->TrustStatus.dwErrorStatus &
 259                        CERT_TRUST_REVOCATION_STATUS_UNKNOWN)))
 260                 err = ERROR_INTERNET_SEC_CERT_NO_REV;
 261             else if (!(security_flags & SECURITY_FLAG_IGNORE_REVOCATION) &&
 262                      (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED))
 263                 err = ERROR_INTERNET_SEC_CERT_REVOKED;
 264             else if (!(security_flags & SECURITY_FLAG_IGNORE_WRONG_USAGE) &&
 265                      (chain->TrustStatus.dwErrorStatus &
 266                       CERT_TRUST_IS_NOT_VALID_FOR_USAGE))
 267                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 268             else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
 269                 err = ERROR_INTERNET_SEC_INVALID_CERT;
 270         }
 271         if (!err)
 272         {
 273             CERT_CHAIN_POLICY_PARA policyPara;
 274             SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
 275             CERT_CHAIN_POLICY_STATUS policyStatus;
 276             CERT_CHAIN_CONTEXT chainCopy;
 277
 278             /* Clear chain->TrustStatus.dwErrorStatus so
 279              * CertVerifyCertificateChainPolicy will verify additional checks
 280              * rather than stopping with an existing, ignored error.
 281              */
 282             memcpy(&chainCopy, chain, sizeof(chainCopy));
 283             chainCopy.TrustStatus.dwErrorStatus = 0;
 284             sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
 285             sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
 286             sslExtraPolicyPara.pwszServerName = server;
 287             sslExtraPolicyPara.fdwChecks = security_flags;
 288             policyPara.cbSize = sizeof(policyPara);
 289             policyPara.dwFlags = 0;
 290             policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
 291             ret = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
 292                 &chainCopy, &policyPara, &policyStatus);
 293             /* Any error in the policy status indicates that the
 294              * policy couldn't be verified.
 295              */
 296             if (ret && policyStatus.dwError)
 297             {
 298                 if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
 299                     err = ERROR_INTERNET_SEC_CERT_CN_INVALID;
 300                 else
 301                     err = ERROR_INTERNET_SEC_INVALID_CERT;
 302             }
 303         }
 304         CertFreeCertificateChain(chain);
 305     }
 306     TRACE("returning %08x\n", err);
 307     return err;
 308 }
 309
 310 static int netconn_secure_verify(int preverify_ok, X509_STORE_CTX *ctx)
 311 {
 312     SSL *ssl;
 313     WCHAR *server;
 314     BOOL ret = FALSE;
 315     HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
 316         CERT_STORE_CREATE_NEW_FLAG, NULL);
 317     WININET_NETCONNECTION *conn;
 318
 319     ssl = pX509_STORE_CTX_get_ex_data(ctx,
 320         pSSL_get_ex_data_X509_STORE_CTX_idx());
 321     server = pSSL_get_ex_data(ssl, hostname_idx);
 322     conn = pSSL_get_ex_data(ssl, conn_idx);
 323     if (store)
 324     {
 325         X509 *cert;
 326         int i;
 327         PCCERT_CONTEXT endCert = NULL;
 328
 329         ret = TRUE;
 330         for (i = 0; ret && i < psk_num((struct stack_st *)ctx->chain); i++)
 331         {
 332             PCCERT_CONTEXT context;
 333
 334             cert = (X509 *)psk_value((struct stack_st *)ctx->chain, i);
 335             if ((context = X509_to_cert_context(cert)))
 336             {
 337                 if (i == 0)
 338                     ret = CertAddCertificateContextToStore(store, context,
 339                         CERT_STORE_ADD_ALWAYS, &endCert);
 340                 else
 341                     ret = CertAddCertificateContextToStore(store, context,
 342                         CERT_STORE_ADD_ALWAYS, NULL);
 343                 CertFreeCertificateContext(context);
 344             }
 345         }
 346         if (!endCert) ret = FALSE;
 347         if (ret)
 348         {
 349             DWORD_PTR err = netconn_verify_cert(endCert, store, server,
 350                                                 conn->security_flags);
 351
 352             if (err)
 353             {
 354                 pSSL_set_ex_data(ssl, error_idx, (void *)err);
 355                 ret = FALSE;
 356             }
 357         }
 358         CertFreeCertificateContext(endCert);
 359         CertCloseStore(store, 0);
 360     }
 361     return ret;
 362 }
 363
 364 #endif
 365
 366 DWORD NETCON_init(WININET_NETCONNECTION *connection, BOOL useSSL)
 367 {
 368     connection->useSSL = FALSE;
 369     connection->socketFD = -1;
 370     if (useSSL)
 371     {
 372 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 373         int i;
 374
 375         TRACE("using SSL connection\n");
 376         EnterCriticalSection(&init_ssl_cs);
 377         if (OpenSSL_ssl_handle) /* already initialized everything */
 378         {
 379             LeaveCriticalSection(&init_ssl_cs);
 380             return ERROR_SUCCESS;
 381         }
 382         OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
 383         if (!OpenSSL_ssl_handle)
 384         {
 385             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 386                 SONAME_LIBSSL);
 387             LeaveCriticalSection(&init_ssl_cs);
 388             return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 389         }
 390         OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
 391         if (!OpenSSL_crypto_handle)
 392         {
 393             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 394                 SONAME_LIBCRYPTO);
 395             LeaveCriticalSection(&init_ssl_cs);
 396             return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 397         }
 398
 399         /* mmm nice ugly macroness */
 400 #define DYNSSL(x) \
 401     p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
 402     if (!p##x) \
 403     { \
 404         ERR("failed to load symbol %s\n", #x); \
 405         LeaveCriticalSection(&init_ssl_cs); \
 406         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 407     }
 408
 409         DYNSSL(SSL_library_init);
 410         DYNSSL(SSL_load_error_strings);
 411         DYNSSL(SSLv23_method);
 412         DYNSSL(SSL_CTX_free);
 413         DYNSSL(SSL_CTX_new);
 414         DYNSSL(SSL_new);
 415         DYNSSL(SSL_free);
 416         DYNSSL(SSL_set_fd);
 417         DYNSSL(SSL_connect);
 418         DYNSSL(SSL_shutdown);
 419         DYNSSL(SSL_write);
 420         DYNSSL(SSL_read);
 421         DYNSSL(SSL_pending);
 422         DYNSSL(SSL_get_error);
 423         DYNSSL(SSL_get_ex_new_index);
 424         DYNSSL(SSL_get_ex_data);
 425         DYNSSL(SSL_set_ex_data);
 426         DYNSSL(SSL_get_ex_data_X509_STORE_CTX_idx);
 427         DYNSSL(SSL_get_peer_certificate);
 428         DYNSSL(SSL_CTX_get_timeout);
 429         DYNSSL(SSL_CTX_set_timeout);
 430         DYNSSL(SSL_CTX_set_default_verify_paths);
 431         DYNSSL(SSL_CTX_set_verify);
 432         DYNSSL(SSL_get_current_cipher);
 433         DYNSSL(SSL_CIPHER_get_bits);
 434 #undef DYNSSL
 435
 436 #define DYNCRYPTO(x) \
 437     p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
 438     if (!p##x) \
 439     { \
 440         ERR("failed to load symbol %s\n", #x); \
 441         LeaveCriticalSection(&init_ssl_cs); \
 442         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \
 443     }
 444         DYNCRYPTO(BIO_new_fp);
 445         DYNCRYPTO(CRYPTO_num_locks);
 446         DYNCRYPTO(CRYPTO_set_id_callback);
 447         DYNCRYPTO(CRYPTO_set_locking_callback);
 448         DYNCRYPTO(ERR_free_strings);
 449         DYNCRYPTO(ERR_get_error);
 450         DYNCRYPTO(ERR_error_string);
 451         DYNCRYPTO(X509_STORE_CTX_get_ex_data);
 452         DYNCRYPTO(i2d_X509);
 453         DYNCRYPTO(sk_num);
 454         DYNCRYPTO(sk_value);
 455 #undef DYNCRYPTO
 456
 457         pSSL_library_init();
 458         pSSL_load_error_strings();
 459         pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
 460
 461         meth = pSSLv23_method();
 462         ctx = pSSL_CTX_new(meth);
 463         if (!pSSL_CTX_set_default_verify_paths(ctx))
 464         {
 465             ERR("SSL_CTX_set_default_verify_paths failed: %s\n",
 466                 pERR_error_string(pERR_get_error(), 0));
 467             LeaveCriticalSection(&init_ssl_cs);
 468             return ERROR_OUTOFMEMORY;
 469         }
 470         hostname_idx = pSSL_get_ex_new_index(0, (void *)"hostname index",
 471                 NULL, NULL, NULL);
 472         if (hostname_idx == -1)
 473         {
 474             ERR("SSL_get_ex_new_index failed; %s\n",
 475                 pERR_error_string(pERR_get_error(), 0));
 476             LeaveCriticalSection(&init_ssl_cs);
 477             return ERROR_OUTOFMEMORY;
 478         }
 479         error_idx = pSSL_get_ex_new_index(0, (void *)"error index",
 480                 NULL, NULL, NULL);
 481         if (error_idx == -1)
 482         {
 483             ERR("SSL_get_ex_new_index failed; %s\n",
 484                 pERR_error_string(pERR_get_error(), 0));
 485             LeaveCriticalSection(&init_ssl_cs);
 486             return ERROR_OUTOFMEMORY;
 487         }
 488         conn_idx = pSSL_get_ex_new_index(0, (void *)"netconn index",
 489                 NULL, NULL, NULL);
 490         if (conn_idx == -1)
 491         {
 492             ERR("SSL_get_ex_new_index failed; %s\n",
 493                 pERR_error_string(pERR_get_error(), 0));
 494             LeaveCriticalSection(&init_ssl_cs);
 495             return ERROR_OUTOFMEMORY;
 496         }
 497         pSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, netconn_secure_verify);
 498
 499         pCRYPTO_set_id_callback(ssl_thread_id);
 500         num_ssl_locks = pCRYPTO_num_locks();
 501         ssl_locks = HeapAlloc(GetProcessHeap(), 0, num_ssl_locks * sizeof(CRITICAL_SECTION));
 502         if (!ssl_locks)
 503         {
 504             LeaveCriticalSection(&init_ssl_cs);
 505             return ERROR_OUTOFMEMORY;
 506         }
 507         for (i = 0; i < num_ssl_locks; i++)
 508             InitializeCriticalSection(&ssl_locks[i]);
 509         pCRYPTO_set_locking_callback(ssl_lock_callback);
 510         LeaveCriticalSection(&init_ssl_cs);
 511 #else
 512         FIXME("can't use SSL, not compiled in.\n");
 513         return ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 514 #endif
 515     }
 516     return ERROR_SUCCESS;
 517 }
 518
 519 void NETCON_unload(void)
 520 {
 521 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 522     if (OpenSSL_crypto_handle)
 523     {
 524         pERR_free_strings();
 525         wine_dlclose(OpenSSL_crypto_handle, NULL, 0);
 526     }
 527     if (OpenSSL_ssl_handle)
 528     {
 529         if (ctx)
 530             pSSL_CTX_free(ctx);
 531         wine_dlclose(OpenSSL_ssl_handle, NULL, 0);
 532     }
 533     if (ssl_locks)
 534     {
 535         int i;
 536         for (i = 0; i < num_ssl_locks; i++) DeleteCriticalSection(&ssl_locks[i]);
 537         HeapFree(GetProcessHeap(), 0, ssl_locks);
 538     }
 539 #endif
 540 }
 541
 542 BOOL NETCON_connected(WININET_NETCONNECTION *connection)
 543 {
 544     if (connection->socketFD == -1)
 545         return FALSE;
 546     else
 547         return TRUE;
 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->useSSL)
 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->useSSL)
 648     {
 649         pSSL_shutdown(connection->ssl_s);
 650         pSSL_free(connection->ssl_s);
 651         connection->ssl_s = NULL;
 652
 653         connection->useSSL = FALSE;
 654     }
 655 #endif
 656
 657     result = closesocket(connection->socketFD);
 658     connection->socketFD = -1;
 659
 660     if (result == -1)
 661         return sock_get_error(errno);
 662     return ERROR_SUCCESS;
 663 }
 664
 665 /******************************************************************************
 666  * NETCON_secure_connect
 667  * Initiates a secure connection over an existing plaintext connection.
 668  */
 669 DWORD NETCON_secure_connect(WININET_NETCONNECTION *connection, LPWSTR hostname)
 670 {
 671     DWORD res = ERROR_NOT_SUPPORTED;
 672
 673 #ifdef SONAME_LIBSSL
 674     /* can't connect if we are already connected */
 675     if (connection->useSSL)
 676     {
 677         ERR("already connected\n");
 678         return ERROR_INTERNET_CANNOT_CONNECT;
 679     }
 680
 681     connection->ssl_s = pSSL_new(ctx);
 682     if (!connection->ssl_s)
 683     {
 684         ERR("SSL_new failed: %s\n",
 685             pERR_error_string(pERR_get_error(), 0));
 686         res = ERROR_OUTOFMEMORY;
 687         goto fail;
 688     }
 689
 690     if (!pSSL_set_fd(connection->ssl_s, connection->socketFD))
 691     {
 692         ERR("SSL_set_fd failed: %s\n",
 693             pERR_error_string(pERR_get_error(), 0));
 694         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 695         goto fail;
 696     }
 697
 698     if (!pSSL_set_ex_data(connection->ssl_s, hostname_idx, hostname))
 699     {
 700         ERR("SSL_set_ex_data failed: %s\n",
 701             pERR_error_string(pERR_get_error(), 0));
 702         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 703         goto fail;
 704     }
 705     if (!pSSL_set_ex_data(connection->ssl_s, conn_idx, connection))
 706     {
 707         ERR("SSL_set_ex_data failed: %s\n",
 708             pERR_error_string(pERR_get_error(), 0));
 709         res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 710         goto fail;
 711     }
 712     if (pSSL_connect(connection->ssl_s) <= 0)
 713     {
 714         res = (DWORD_PTR)pSSL_get_ex_data(connection->ssl_s, error_idx);
 715         if (!res)
 716             res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR;
 717         ERR("SSL_connect failed: %d\n", res);
 718         goto fail;
 719     }
 720
 721     connection->useSSL = TRUE;
 722     return ERROR_SUCCESS;
 723
 724 fail:
 725     if (connection->ssl_s)
 726     {
 727         pSSL_shutdown(connection->ssl_s);
 728         pSSL_free(connection->ssl_s);
 729         connection->ssl_s = NULL;
 730     }
 731 #endif
 732     return res;
 733 }
 734
 735 /******************************************************************************
 736  * NETCON_connect
 737  * Connects to the specified address.
 738  */
 739 DWORD NETCON_connect(WININET_NETCONNECTION *connection, const struct sockaddr *serv_addr,
 740                     unsigned int addrlen)
 741 {
 742     int result;
 743
 744     result = connect(connection->socketFD, serv_addr, addrlen);
 745     if (result == -1)
 746     {
 747         WARN("Unable to connect to host (%s)\n", strerror(errno));
 748
 749         closesocket(connection->socketFD);
 750         connection->socketFD = -1;
 751         return sock_get_error(errno);
 752     }
 753
 754     return ERROR_SUCCESS;
 755 }
 756
 757 /******************************************************************************
 758  * NETCON_send
 759  * Basically calls 'send()' unless we should use SSL
 760  * number of chars send is put in *sent
 761  */
 762 DWORD NETCON_send(WININET_NETCONNECTION *connection, const void *msg, size_t len, int flags,
 763                 int *sent /* out */)
 764 {
 765     if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
 766     if (!connection->useSSL)
 767     {
 768         *sent = send(connection->socketFD, msg, len, flags);
 769         if (*sent == -1)
 770             return sock_get_error(errno);
 771         return ERROR_SUCCESS;
 772     }
 773     else
 774     {
 775 #ifdef SONAME_LIBSSL
 776         if (flags)
 777             FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
 778         *sent = pSSL_write(connection->ssl_s, msg, len);
 779         if (*sent < 1 && len)
 780             return ERROR_INTERNET_CONNECTION_ABORTED;
 781         return ERROR_SUCCESS;
 782 #else
 783         return ERROR_NOT_SUPPORTED;
 784 #endif
 785     }
 786 }
 787
 788 /******************************************************************************
 789  * NETCON_recv
 790  * Basically calls 'recv()' unless we should use SSL
 791  * number of chars received is put in *recvd
 792  */
 793 DWORD NETCON_recv(WININET_NETCONNECTION *connection, void *buf, size_t len, int flags,
 794                 int *recvd /* out */)
 795 {
 796     *recvd = 0;
 797     if (!NETCON_connected(connection)) return ERROR_INTERNET_CONNECTION_ABORTED;
 798     if (!len)
 799         return ERROR_SUCCESS;
 800     if (!connection->useSSL)
 801     {
 802         *recvd = recv(connection->socketFD, buf, len, flags);
 803         if(!*recvd)
 804             NETCON_close(connection);
 805         return *recvd == -1 ? sock_get_error(errno) :  ERROR_SUCCESS;
 806     }
 807     else
 808     {
 809 #ifdef SONAME_LIBSSL
 810         *recvd = pSSL_read(connection->ssl_s, buf, len);
 811
 812         /* Check if EOF was received */
 813         if(!*recvd && (pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_ZERO_RETURN
 814                     || pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_SYSCALL)) {
 815             NETCON_close(connection);
 816             return ERROR_SUCCESS;
 817         }
 818
 819         return *recvd > 0 ? ERROR_SUCCESS : ERROR_INTERNET_CONNECTION_ABORTED;
 820 #else
 821         return ERROR_NOT_SUPPORTED;
 822 #endif
 823     }
 824 }
 825
 826 /******************************************************************************
 827  * NETCON_query_data_available
 828  * Returns the number of bytes of peeked data plus the number of bytes of
 829  * queued, but unread data.
 830  */
 831 BOOL NETCON_query_data_available(WININET_NETCONNECTION *connection, DWORD *available)
 832 {
 833     *available = 0;
 834     if (!NETCON_connected(connection))
 835         return FALSE;
 836
 837     if (!connection->useSSL)
 838     {
 839 #ifdef FIONREAD
 840         int unread;
 841         int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
 842         if (!retval)
 843         {
 844             TRACE("%d bytes of queued, but unread data\n", unread);
 845             *available += unread;
 846         }
 847 #endif
 848     }
 849     else
 850     {
 851 #ifdef SONAME_LIBSSL
 852         *available = pSSL_pending(connection->ssl_s);
 853 #endif
 854     }
 855     return TRUE;
 856 }
 857
 858 LPCVOID NETCON_GetCert(WININET_NETCONNECTION *connection)
 859 {
 860 #ifdef SONAME_LIBSSL
 861     X509* cert;
 862     LPCVOID r = NULL;
 863
 864     if (!connection->useSSL)
 865         return NULL;
 866
 867     cert = pSSL_get_peer_certificate(connection->ssl_s);
 868     r = X509_to_cert_context(cert);
 869     return r;
 870 #else
 871     return NULL;
 872 #endif
 873 }
 874
 875 int NETCON_GetCipherStrength(WININET_NETCONNECTION *connection)
 876 {
 877 #ifdef SONAME_LIBSSL
 878 #if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x0090707f)
 879     const SSL_CIPHER *cipher;
 880 #else
 881     SSL_CIPHER *cipher;
 882 #endif
 883     int bits = 0;
 884
 885     if (!connection->useSSL)
 886         return 0;
 887     cipher = pSSL_get_current_cipher(connection->ssl_s);
 888     if (!cipher)
 889         return 0;
 890     pSSL_CIPHER_get_bits(cipher, &bits);
 891     return bits;
 892 #else
 893     return 0;
 894 #endif
 895 }
 896
 897 DWORD NETCON_set_timeout(WININET_NETCONNECTION *connection, BOOL send, int value)
 898 {
 899     int result;
 900     struct timeval tv;
 901
 902     /* FIXME: we should probably store the timeout in the connection to set
 903      * when we do connect */
 904     if (!NETCON_connected(connection))
 905         return ERROR_SUCCESS;
 906
 907     /* value is in milliseconds, convert to struct timeval */
 908     tv.tv_sec = value / 1000;
 909     tv.tv_usec = (value % 1000) * 1000;
 910
 911     result = setsockopt(connection->socketFD, SOL_SOCKET,
 912                         send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv,
 913                         sizeof(tv));
 914
 915     if (result == -1)
 916     {
 917         WARN("setsockopt failed (%s)\n", strerror(errno));
 918         return sock_get_error(errno);
 919     }
 920
 921     return ERROR_SUCCESS;
 922 }