/* * Wininet - networking layer. Uses unix sockets or OpenSSL. * * Copyright 2002 TransGaming Technologies Inc. * * David Hammerton * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #define NONAMELESSUNION #if defined(__MINGW32__) || defined (_MSC_VER) #include #endif #include #ifdef HAVE_POLL_H #include #endif #ifdef HAVE_SYS_POLL_H # include #endif #ifdef HAVE_SYS_TIME_H # include #endif #ifdef HAVE_SYS_SOCKET_H # include #endif #ifdef HAVE_SYS_FILIO_H # include #endif #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_SYS_IOCTL_H # include #endif #include #ifdef HAVE_NETDB_H # include #endif #ifdef HAVE_NETINET_IN_H # include #endif #ifdef HAVE_NETINET_TCP_H # include #endif #ifdef HAVE_OPENSSL_SSL_H # include # include #undef FAR #undef DSA #endif #include #include #include #include #include #include #include "wine/library.h" #include "windef.h" #include "winbase.h" #include "wininet.h" #include "winerror.h" #include "wine/debug.h" #include "internet.h" /* To avoid conflicts with the Unix socket headers. we only need it for * the error codes anyway. */ #define USE_WS_PREFIX #include "winsock2.h" #define RESPONSE_TIMEOUT 30 /* FROM internet.c */ WINE_DEFAULT_DEBUG_CHANNEL(wininet); /* FIXME!!!!!! * This should use winsock - To use winsock the functions will have to change a bit * as they are designed for unix sockets. * SSL stuff should use crypt32.dll */ #ifdef SONAME_LIBSSL #include static void *OpenSSL_ssl_handle; static void *OpenSSL_crypto_handle; #if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER > 0x10000000) static const SSL_METHOD *meth; #else static SSL_METHOD *meth; #endif static SSL_CTX *ctx; static int error_idx; static int conn_idx; #define MAKE_FUNCPTR(f) static typeof(f) * p##f /* OpenSSL functions that we use */ MAKE_FUNCPTR(SSL_library_init); MAKE_FUNCPTR(SSL_load_error_strings); MAKE_FUNCPTR(SSLv23_method); MAKE_FUNCPTR(SSL_CTX_free); MAKE_FUNCPTR(SSL_CTX_new); MAKE_FUNCPTR(SSL_CTX_ctrl); MAKE_FUNCPTR(SSL_new); MAKE_FUNCPTR(SSL_free); MAKE_FUNCPTR(SSL_ctrl); MAKE_FUNCPTR(SSL_set_fd); MAKE_FUNCPTR(SSL_connect); MAKE_FUNCPTR(SSL_shutdown); MAKE_FUNCPTR(SSL_write); MAKE_FUNCPTR(SSL_read); MAKE_FUNCPTR(SSL_pending); MAKE_FUNCPTR(SSL_get_error); MAKE_FUNCPTR(SSL_get_ex_new_index); MAKE_FUNCPTR(SSL_get_ex_data); MAKE_FUNCPTR(SSL_set_ex_data); MAKE_FUNCPTR(SSL_get_ex_data_X509_STORE_CTX_idx); MAKE_FUNCPTR(SSL_get_peer_certificate); MAKE_FUNCPTR(SSL_CTX_get_timeout); MAKE_FUNCPTR(SSL_CTX_set_timeout); MAKE_FUNCPTR(SSL_CTX_set_default_verify_paths); MAKE_FUNCPTR(SSL_CTX_set_verify); MAKE_FUNCPTR(SSL_get_current_cipher); MAKE_FUNCPTR(SSL_CIPHER_get_bits); /* OpenSSL's libcrypto functions that we use */ MAKE_FUNCPTR(BIO_new_fp); MAKE_FUNCPTR(CRYPTO_num_locks); MAKE_FUNCPTR(CRYPTO_set_id_callback); MAKE_FUNCPTR(CRYPTO_set_locking_callback); MAKE_FUNCPTR(ERR_free_strings); MAKE_FUNCPTR(ERR_get_error); MAKE_FUNCPTR(ERR_error_string); MAKE_FUNCPTR(X509_STORE_CTX_get_ex_data); MAKE_FUNCPTR(X509_STORE_CTX_get_chain); MAKE_FUNCPTR(i2d_X509); MAKE_FUNCPTR(sk_num); MAKE_FUNCPTR(sk_value); #undef MAKE_FUNCPTR static CRITICAL_SECTION *ssl_locks; static unsigned int num_ssl_locks; static unsigned long ssl_thread_id(void) { return GetCurrentThreadId(); } static void ssl_lock_callback(int mode, int type, const char *file, int line) { if (mode & CRYPTO_LOCK) EnterCriticalSection(&ssl_locks[type]); else LeaveCriticalSection(&ssl_locks[type]); } static PCCERT_CONTEXT X509_to_cert_context(X509 *cert) { unsigned char* buffer,*p; INT len; BOOL malloced = FALSE; PCCERT_CONTEXT ret; p = NULL; len = pi2d_X509(cert,&p); /* * SSL 0.9.7 and above malloc the buffer if it is null. * however earlier version do not and so we would need to alloc the buffer. * * see the i2d_X509 man page for more details. */ if (!p) { buffer = heap_alloc(len); p = buffer; len = pi2d_X509(cert,&p); } else { buffer = p; malloced = TRUE; } ret = CertCreateCertificateContext(X509_ASN_ENCODING,buffer,len); if (malloced) free(buffer); else heap_free(buffer); return ret; } static DWORD netconn_verify_cert(netconn_t *conn, PCCERT_CONTEXT cert, HCERTSTORE store) { BOOL ret; CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } }; PCCERT_CHAIN_CONTEXT chain; char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH; char *server_auth[] = { oid_server_auth }; DWORD err = ERROR_SUCCESS, errors; static const DWORD supportedErrors = CERT_TRUST_IS_NOT_TIME_VALID | CERT_TRUST_IS_UNTRUSTED_ROOT | CERT_TRUST_IS_PARTIAL_CHAIN | CERT_TRUST_IS_NOT_VALID_FOR_USAGE; TRACE("verifying %s\n", debugstr_w(conn->server->name)); chainPara.RequestedUsage.Usage.cUsageIdentifier = 1; chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth; if (!(ret = CertGetCertificateChain(NULL, cert, NULL, store, &chainPara, 0, NULL, &chain))) { TRACE("failed\n"); return GetLastError(); } errors = chain->TrustStatus.dwErrorStatus; do { /* This seems strange, but that's what tests show */ if(errors & CERT_TRUST_IS_PARTIAL_CHAIN) { WARN("ERROR_INTERNET_SEC_CERT_REV_FAILED\n"); err = ERROR_INTERNET_SEC_CERT_REV_FAILED; if(conn->mask_errors) conn->security_flags |= _SECURITY_FLAG_CERT_REV_FAILED; if(!(conn->security_flags & SECURITY_FLAG_IGNORE_REVOCATION)) break; } if (chain->TrustStatus.dwErrorStatus & ~supportedErrors) { WARN("error status %x\n", chain->TrustStatus.dwErrorStatus & ~supportedErrors); err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_INVALID_CERT; errors &= supportedErrors; if(!conn->mask_errors) break; WARN("unknown error flags\n"); } if(errors & CERT_TRUST_IS_NOT_TIME_VALID) { WARN("CERT_TRUST_IS_NOT_TIME_VALID\n"); if(!(conn->security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID)) { err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_CERT_DATE_INVALID; if(!conn->mask_errors) break; conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_DATE; } errors &= ~CERT_TRUST_IS_NOT_TIME_VALID; } if(errors & CERT_TRUST_IS_UNTRUSTED_ROOT) { WARN("CERT_TRUST_IS_UNTRUSTED_ROOT\n"); if(!(conn->security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA)) { err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_INVALID_CA; if(!conn->mask_errors) break; conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_CA; } errors &= ~CERT_TRUST_IS_UNTRUSTED_ROOT; } if(errors & CERT_TRUST_IS_PARTIAL_CHAIN) { WARN("CERT_TRUST_IS_PARTIAL_CHAIN\n"); if(!(conn->security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA)) { err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_INVALID_CA; if(!conn->mask_errors) break; conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_CA; } errors &= ~CERT_TRUST_IS_PARTIAL_CHAIN; } if(errors & CERT_TRUST_IS_NOT_VALID_FOR_USAGE) { WARN("CERT_TRUST_IS_NOT_VALID_FOR_USAGE\n"); if(!(conn->security_flags & SECURITY_FLAG_IGNORE_WRONG_USAGE)) { err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_INVALID_CERT; if(!conn->mask_errors) break; WARN("CERT_TRUST_IS_NOT_VALID_FOR_USAGE, unknown error flags\n"); } errors &= ~CERT_TRUST_IS_NOT_VALID_FOR_USAGE; } if(err == ERROR_INTERNET_SEC_CERT_REV_FAILED) { assert(conn->security_flags & SECURITY_FLAG_IGNORE_REVOCATION); err = ERROR_SUCCESS; } }while(0); if(!err || conn->mask_errors) { CERT_CHAIN_POLICY_PARA policyPara; SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara; CERT_CHAIN_POLICY_STATUS policyStatus; CERT_CHAIN_CONTEXT chainCopy; /* Clear chain->TrustStatus.dwErrorStatus so * CertVerifyCertificateChainPolicy will verify additional checks * rather than stopping with an existing, ignored error. */ memcpy(&chainCopy, chain, sizeof(chainCopy)); chainCopy.TrustStatus.dwErrorStatus = 0; sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara); sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER; sslExtraPolicyPara.pwszServerName = conn->server->name; sslExtraPolicyPara.fdwChecks = conn->security_flags; policyPara.cbSize = sizeof(policyPara); policyPara.dwFlags = 0; policyPara.pvExtraPolicyPara = &sslExtraPolicyPara; ret = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, &chainCopy, &policyPara, &policyStatus); /* Any error in the policy status indicates that the * policy couldn't be verified. */ if(ret) { if(policyStatus.dwError == CERT_E_CN_NO_MATCH) { WARN("CERT_E_CN_NO_MATCH\n"); if(conn->mask_errors) conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_CN; err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_CERT_CN_INVALID; }else if(policyStatus.dwError) { WARN("policyStatus.dwError %x\n", policyStatus.dwError); if(conn->mask_errors) WARN("unknown error flags for policy status %x\n", policyStatus.dwError); err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_INVALID_CERT; } }else { err = GetLastError(); } } if(err) { WARN("failed %u\n", err); CertFreeCertificateChain(chain); if(conn->server->cert_chain) { CertFreeCertificateChain(conn->server->cert_chain); conn->server->cert_chain = NULL; } if(conn->mask_errors) conn->server->security_flags |= conn->security_flags & _SECURITY_ERROR_FLAGS_MASK; return err; } /* FIXME: Reuse cached chain */ if(conn->server->cert_chain) CertFreeCertificateChain(chain); else conn->server->cert_chain = chain; return ERROR_SUCCESS; } static int netconn_secure_verify(int preverify_ok, X509_STORE_CTX *ctx) { SSL *ssl; BOOL ret = FALSE; HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, CERT_STORE_CREATE_NEW_FLAG, NULL); netconn_t *conn; ssl = pX509_STORE_CTX_get_ex_data(ctx, pSSL_get_ex_data_X509_STORE_CTX_idx()); conn = pSSL_get_ex_data(ssl, conn_idx); if (store) { X509 *cert; int i; PCCERT_CONTEXT endCert = NULL; struct stack_st *chain = (struct stack_st *)pX509_STORE_CTX_get_chain( ctx ); ret = TRUE; for (i = 0; ret && i < psk_num(chain); i++) { PCCERT_CONTEXT context; cert = (X509 *)psk_value(chain, i); if ((context = X509_to_cert_context(cert))) { ret = CertAddCertificateContextToStore(store, context, CERT_STORE_ADD_ALWAYS, i ? NULL : &endCert); CertFreeCertificateContext(context); } } if (!endCert) ret = FALSE; if (ret) { DWORD_PTR err = netconn_verify_cert(conn, endCert, store); if (err) { pSSL_set_ex_data(ssl, error_idx, (void *)err); ret = FALSE; } } CertFreeCertificateContext(endCert); CertCloseStore(store, 0); } return ret; } static long get_tls_option(void) { long tls_option = SSL_OP_NO_SSLv2; /* disable SSLv2 for security reason, secur32/Schannel(GnuTLS) don't support it */ #ifdef SSL_OP_NO_TLSv1_2 DWORD type, val, size; HKEY hkey,tls12_client,tls11_client; LONG res; const WCHAR Schannel_Prot[] = { /* SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\SCANNEL\\Protocols */ 'S','Y','S','T','E','M','\\', 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\', 'C','o','n','t','r','o','l','\\', 'S','e','c','u','r','i','t','y','P','r','o','v','i','d','e','r','s','\\', 'S','C','H','A','N','N','E','L','\\', 'P','r','o','t','o','c','o','l','s',0 }; const WCHAR TLS12_Client[] = {'T','L','S',' ','1','.','2','\\','C','l','i','e','n','t',0}; const WCHAR TLS11_Client[] = {'T','L','S',' ','1','.','1','\\','C','l','i','e','n','t',0}; const WCHAR DisabledByDefault[] = {'D','i','s','a','b','l','e','d','B','y','D','e','f','a','u','l','t',0}; res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, Schannel_Prot, 0, KEY_READ, &hkey); if (res != ERROR_SUCCESS) { /* enabled TLSv1.1/1.2 when no registry entry */ return tls_option; } if (RegOpenKeyExW(hkey, TLS12_Client, 0, KEY_READ, &tls12_client) == ERROR_SUCCESS) { size = sizeof(DWORD); if (RegQueryValueExW(tls12_client, DisabledByDefault, NULL, &type, (LPBYTE) &val, &size) == ERROR_SUCCESS && type == REG_DWORD) { tls_option |= val?SSL_OP_NO_TLSv1_2:0; } RegCloseKey(tls12_client); } if (RegOpenKeyExW(hkey, TLS11_Client, 0, KEY_READ, &tls11_client) == ERROR_SUCCESS) { size = sizeof(DWORD); if (RegQueryValueExW(tls11_client, DisabledByDefault, NULL, &type, (LPBYTE) &val, &size) == ERROR_SUCCESS && type == REG_DWORD) { tls_option |= val?SSL_OP_NO_TLSv1_1:0; } RegCloseKey(tls11_client); } RegCloseKey(hkey); #endif return tls_option; } static CRITICAL_SECTION init_ssl_cs; static CRITICAL_SECTION_DEBUG init_ssl_cs_debug = { 0, 0, &init_ssl_cs, { &init_ssl_cs_debug.ProcessLocksList, &init_ssl_cs_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": init_ssl_cs") } }; static CRITICAL_SECTION init_ssl_cs = { &init_ssl_cs_debug, -1, 0, 0, 0, 0 }; static DWORD init_openssl(void) { #ifdef SONAME_LIBCRYPTO int i; if(OpenSSL_ssl_handle) return ERROR_SUCCESS; OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0); if(!OpenSSL_ssl_handle) { ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n", SONAME_LIBSSL); return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; } OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0); if(!OpenSSL_crypto_handle) { ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n", SONAME_LIBCRYPTO); return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; } /* mmm nice ugly macroness */ #define DYNSSL(x) \ p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \ if (!p##x) { \ ERR("failed to load symbol %s\n", #x); \ return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \ } DYNSSL(SSL_library_init); DYNSSL(SSL_load_error_strings); DYNSSL(SSLv23_method); DYNSSL(SSL_CTX_free); DYNSSL(SSL_CTX_new); DYNSSL(SSL_CTX_ctrl); DYNSSL(SSL_new); DYNSSL(SSL_free); DYNSSL(SSL_ctrl); DYNSSL(SSL_set_fd); DYNSSL(SSL_connect); DYNSSL(SSL_shutdown); DYNSSL(SSL_write); DYNSSL(SSL_read); DYNSSL(SSL_pending); DYNSSL(SSL_get_error); DYNSSL(SSL_get_ex_new_index); DYNSSL(SSL_get_ex_data); DYNSSL(SSL_set_ex_data); DYNSSL(SSL_get_ex_data_X509_STORE_CTX_idx); DYNSSL(SSL_get_peer_certificate); DYNSSL(SSL_CTX_get_timeout); DYNSSL(SSL_CTX_set_timeout); DYNSSL(SSL_CTX_set_default_verify_paths); DYNSSL(SSL_CTX_set_verify); DYNSSL(SSL_get_current_cipher); DYNSSL(SSL_CIPHER_get_bits); #undef DYNSSL #define DYNCRYPTO(x) \ p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \ if (!p##x) { \ ERR("failed to load symbol %s\n", #x); \ return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; \ } DYNCRYPTO(BIO_new_fp); DYNCRYPTO(CRYPTO_num_locks); DYNCRYPTO(CRYPTO_set_id_callback); DYNCRYPTO(CRYPTO_set_locking_callback); DYNCRYPTO(ERR_free_strings); DYNCRYPTO(ERR_get_error); DYNCRYPTO(ERR_error_string); DYNCRYPTO(X509_STORE_CTX_get_ex_data); DYNCRYPTO(X509_STORE_CTX_get_chain); DYNCRYPTO(i2d_X509); DYNCRYPTO(sk_num); DYNCRYPTO(sk_value); #undef DYNCRYPTO #define pSSL_CTX_set_options(ctx,op) \ pSSL_CTX_ctrl((ctx),SSL_CTRL_OPTIONS,(op),NULL) #define pSSL_set_options(ssl,op) \ pSSL_ctrl((ssl),SSL_CTRL_OPTIONS,(op),NULL) pSSL_library_init(); pSSL_load_error_strings(); pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */ meth = pSSLv23_method(); ctx = pSSL_CTX_new(meth); pSSL_CTX_set_options(ctx, get_tls_option()); if(!pSSL_CTX_set_default_verify_paths(ctx)) { ERR("SSL_CTX_set_default_verify_paths failed: %s\n", pERR_error_string(pERR_get_error(), 0)); return ERROR_OUTOFMEMORY; } error_idx = pSSL_get_ex_new_index(0, (void *)"error index", NULL, NULL, NULL); if(error_idx == -1) { ERR("SSL_get_ex_new_index failed; %s\n", pERR_error_string(pERR_get_error(), 0)); return ERROR_OUTOFMEMORY; } conn_idx = pSSL_get_ex_new_index(0, (void *)"netconn index", NULL, NULL, NULL); if(conn_idx == -1) { ERR("SSL_get_ex_new_index failed; %s\n", pERR_error_string(pERR_get_error(), 0)); return ERROR_OUTOFMEMORY; } pSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, netconn_secure_verify); pCRYPTO_set_id_callback(ssl_thread_id); num_ssl_locks = pCRYPTO_num_locks(); ssl_locks = heap_alloc(num_ssl_locks * sizeof(CRITICAL_SECTION)); if(!ssl_locks) return ERROR_OUTOFMEMORY; for(i = 0; i < num_ssl_locks; i++) { InitializeCriticalSection(&ssl_locks[i]); ssl_locks[i].DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ssl_locks"); } pCRYPTO_set_locking_callback(ssl_lock_callback); return ERROR_SUCCESS; #else FIXME("can't use SSL, libcrypto not compiled in.\n"); return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; #endif } #endif /* SONAME_LIBSSL */ static DWORD create_netconn_socket(server_t *server, netconn_t *netconn, DWORD timeout) { int result, flag; assert(server->addr_len); result = netconn->socket = socket(server->addr.ss_family, SOCK_STREAM, 0); if(result != -1) { flag = 1; ioctlsocket(netconn->socket, FIONBIO, &flag); result = connect(netconn->socket, (struct sockaddr*)&server->addr, server->addr_len); if(result == -1) { if (sock_get_error(errno) == WSAEINPROGRESS) { struct pollfd pfd; int res; pfd.fd = netconn->socket; pfd.events = POLLOUT; res = poll(&pfd, 1, timeout); if (!res) { closesocket(netconn->socket); return ERROR_INTERNET_CANNOT_CONNECT; } else if (res > 0) { int err; socklen_t len = sizeof(err); if (!getsockopt(netconn->socket, SOL_SOCKET, SO_ERROR, &err, &len) && !err) result = 0; } } } if(result == -1) closesocket(netconn->socket); else { flag = 0; ioctlsocket(netconn->socket, FIONBIO, &flag); } } if(result == -1) return ERROR_INTERNET_CANNOT_CONNECT; #ifdef TCP_NODELAY flag = 1; result = setsockopt(netconn->socket, IPPROTO_TCP, TCP_NODELAY, (void*)&flag, sizeof(flag)); if(result < 0) WARN("setsockopt(TCP_NODELAY) failed\n"); #endif return ERROR_SUCCESS; } DWORD create_netconn(BOOL useSSL, server_t *server, DWORD security_flags, BOOL mask_errors, DWORD timeout, netconn_t **ret) { netconn_t *netconn; int result; #ifdef SONAME_LIBSSL if(useSSL) { DWORD res; TRACE("using SSL connection\n"); EnterCriticalSection(&init_ssl_cs); res = init_openssl(); LeaveCriticalSection(&init_ssl_cs); if(res != ERROR_SUCCESS) return res; } #endif netconn = heap_alloc_zero(sizeof(*netconn)); if(!netconn) return ERROR_OUTOFMEMORY; netconn->socket = -1; netconn->security_flags = security_flags | server->security_flags; netconn->mask_errors = mask_errors; list_init(&netconn->pool_entry); result = create_netconn_socket(server, netconn, timeout); if (result != ERROR_SUCCESS) { heap_free(netconn); return result; } server_addref(server); netconn->server = server; *ret = netconn; return result; } void free_netconn(netconn_t *netconn) { server_release(netconn->server); #ifdef SONAME_LIBSSL if (netconn->ssl_s) { pSSL_shutdown(netconn->ssl_s); pSSL_free(netconn->ssl_s); } #endif closesocket(netconn->socket); heap_free(netconn); } void NETCON_unload(void) { #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO) if (OpenSSL_crypto_handle) { pERR_free_strings(); wine_dlclose(OpenSSL_crypto_handle, NULL, 0); } if (OpenSSL_ssl_handle) { if (ctx) pSSL_CTX_free(ctx); wine_dlclose(OpenSSL_ssl_handle, NULL, 0); } if (ssl_locks) { int i; for (i = 0; i < num_ssl_locks; i++) { ssl_locks[i].DebugInfo->Spare[0] = 0; DeleteCriticalSection(&ssl_locks[i]); } heap_free(ssl_locks); } #endif } /* translate a unix error code into a winsock one */ int sock_get_error( int err ) { #if !defined(__MINGW32__) && !defined (_MSC_VER) switch (err) { case EINTR: return WSAEINTR; case EBADF: return WSAEBADF; case EPERM: case EACCES: return WSAEACCES; case EFAULT: return WSAEFAULT; case EINVAL: return WSAEINVAL; case EMFILE: return WSAEMFILE; case EWOULDBLOCK: return WSAEWOULDBLOCK; case EINPROGRESS: return WSAEINPROGRESS; case EALREADY: return WSAEALREADY; case ENOTSOCK: return WSAENOTSOCK; case EDESTADDRREQ: return WSAEDESTADDRREQ; case EMSGSIZE: return WSAEMSGSIZE; case EPROTOTYPE: return WSAEPROTOTYPE; case ENOPROTOOPT: return WSAENOPROTOOPT; case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT; case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT; case EOPNOTSUPP: return WSAEOPNOTSUPP; case EPFNOSUPPORT: return WSAEPFNOSUPPORT; case EAFNOSUPPORT: return WSAEAFNOSUPPORT; case EADDRINUSE: return WSAEADDRINUSE; case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL; case ENETDOWN: return WSAENETDOWN; case ENETUNREACH: return WSAENETUNREACH; case ENETRESET: return WSAENETRESET; case ECONNABORTED: return WSAECONNABORTED; case EPIPE: case ECONNRESET: return WSAECONNRESET; case ENOBUFS: return WSAENOBUFS; case EISCONN: return WSAEISCONN; case ENOTCONN: return WSAENOTCONN; case ESHUTDOWN: return WSAESHUTDOWN; case ETOOMANYREFS: return WSAETOOMANYREFS; case ETIMEDOUT: return WSAETIMEDOUT; case ECONNREFUSED: return WSAECONNREFUSED; case ELOOP: return WSAELOOP; case ENAMETOOLONG: return WSAENAMETOOLONG; case EHOSTDOWN: return WSAEHOSTDOWN; case EHOSTUNREACH: return WSAEHOSTUNREACH; case ENOTEMPTY: return WSAENOTEMPTY; #ifdef EPROCLIM case EPROCLIM: return WSAEPROCLIM; #endif #ifdef EUSERS case EUSERS: return WSAEUSERS; #endif #ifdef EDQUOT case EDQUOT: return WSAEDQUOT; #endif #ifdef ESTALE case ESTALE: return WSAESTALE; #endif #ifdef EREMOTE case EREMOTE: return WSAEREMOTE; #endif default: errno=err; perror("sock_set_error"); return WSAEFAULT; } #endif return err; } #ifdef SONAME_LIBSSL static DWORD netcon_secure_connect_setup(netconn_t *connection, long tls_option) { void *ssl_s; DWORD res; int bits; ssl_s = pSSL_new(ctx); if (!ssl_s) { ERR("SSL_new failed: %s\n", pERR_error_string(pERR_get_error(), 0)); return ERROR_OUTOFMEMORY; } pSSL_set_options(ssl_s, tls_option); if (!pSSL_set_fd(ssl_s, connection->socket)) { ERR("SSL_set_fd failed: %s\n", pERR_error_string(pERR_get_error(), 0)); res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR; goto fail; } if (!pSSL_set_ex_data(ssl_s, conn_idx, connection)) { ERR("SSL_set_ex_data failed: %s\n", pERR_error_string(pERR_get_error(), 0)); res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR; goto fail; } if (pSSL_connect(ssl_s) <= 0) { res = (DWORD_PTR)pSSL_get_ex_data(ssl_s, error_idx); if (!res) res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR; ERR("SSL_connect failed: %d\n", res); goto fail; } connection->ssl_s = ssl_s; connection->secure = TRUE; bits = NETCON_GetCipherStrength(connection); if (bits >= 128) connection->security_flags |= SECURITY_FLAG_STRENGTH_STRONG; else if (bits >= 56) connection->security_flags |= SECURITY_FLAG_STRENGTH_MEDIUM; else connection->security_flags |= SECURITY_FLAG_STRENGTH_WEAK; connection->security_flags |= SECURITY_FLAG_SECURE; if(connection->mask_errors) connection->server->security_flags = connection->security_flags; return ERROR_SUCCESS; fail: if (ssl_s) { pSSL_shutdown(ssl_s); pSSL_free(ssl_s); } return res; } #endif /****************************************************************************** * NETCON_secure_connect * Initiates a secure connection over an existing plaintext connection. */ DWORD NETCON_secure_connect(netconn_t *connection, server_t *server) { DWORD res = ERROR_NOT_SUPPORTED; /* can't connect if we are already connected */ if(connection->secure) { ERR("already connected\n"); return ERROR_INTERNET_CANNOT_CONNECT; } if(server != connection->server) { server_release(connection->server); server_addref(server); connection->server = server; } #ifdef SONAME_LIBSSL /* connect with given TLS options */ res = netcon_secure_connect_setup(connection, get_tls_option()); if (res == ERROR_SUCCESS) return res; #ifdef SSL_OP_NO_TLSv1_2 /* FIXME: when got version alert and FIN from server */ /* fallback to connect without TLSv1.1/TLSv1.2 */ if (res == ERROR_INTERNET_SECURITY_CHANNEL_ERROR) { closesocket(connection->socket); pSSL_CTX_set_options(ctx,SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1_2); res = create_netconn_socket(connection->server, connection, 500); if (res != ERROR_SUCCESS) return res; res = netcon_secure_connect_setup(connection, get_tls_option()|SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1_2); } #endif #else FIXME("Cannot connect, OpenSSL not available.\n"); #endif return res; } /****************************************************************************** * NETCON_send * Basically calls 'send()' unless we should use SSL * number of chars send is put in *sent */ DWORD NETCON_send(netconn_t *connection, const void *msg, size_t len, int flags, int *sent /* out */) { if(!connection->secure) { *sent = send(connection->socket, msg, len, flags); if (*sent == -1) return sock_get_error(errno); return ERROR_SUCCESS; } else { #ifdef SONAME_LIBSSL if(!connection->ssl_s) { FIXME("not connected\n"); return ERROR_NOT_SUPPORTED; } if (flags) FIXME("SSL_write doesn't support any flags (%08x)\n", flags); *sent = pSSL_write(connection->ssl_s, msg, len); if (*sent < 1 && len) return ERROR_INTERNET_CONNECTION_ABORTED; return ERROR_SUCCESS; #else FIXME("not supported on this platform\n"); return ERROR_NOT_SUPPORTED; #endif } } /****************************************************************************** * NETCON_recv * Basically calls 'recv()' unless we should use SSL * number of chars received is put in *recvd */ DWORD NETCON_recv(netconn_t *connection, void *buf, size_t len, int flags, int *recvd) { *recvd = 0; if (!len) return ERROR_SUCCESS; if (!connection->secure) { *recvd = recv(connection->socket, buf, len, flags); return *recvd == -1 ? sock_get_error(errno) : ERROR_SUCCESS; } else { #ifdef SONAME_LIBSSL if(!connection->ssl_s) { FIXME("not connected\n"); return ERROR_NOT_SUPPORTED; } *recvd = pSSL_read(connection->ssl_s, buf, len); /* Check if EOF was received */ if(!*recvd && (pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_ZERO_RETURN || pSSL_get_error(connection->ssl_s, *recvd)==SSL_ERROR_SYSCALL)) return ERROR_SUCCESS; return *recvd > 0 ? ERROR_SUCCESS : ERROR_INTERNET_CONNECTION_ABORTED; #else FIXME("not supported on this platform\n"); return ERROR_NOT_SUPPORTED; #endif } } /****************************************************************************** * NETCON_query_data_available * Returns the number of bytes of peeked data plus the number of bytes of * queued, but unread data. */ BOOL NETCON_query_data_available(netconn_t *connection, DWORD *available) { *available = 0; if(!connection->secure) { #ifdef FIONREAD int unread; int retval = ioctlsocket(connection->socket, FIONREAD, &unread); if (!retval) { TRACE("%d bytes of queued, but unread data\n", unread); *available += unread; } #endif } else { #ifdef SONAME_LIBSSL *available = connection->ssl_s ? pSSL_pending(connection->ssl_s) : 0; #else FIXME("not supported on this platform\n"); return FALSE; #endif } return TRUE; } BOOL NETCON_is_alive(netconn_t *netconn) { #ifdef MSG_DONTWAIT ssize_t len; BYTE b; len = recv(netconn->socket, &b, 1, MSG_PEEK|MSG_DONTWAIT); return len == 1 || (len == -1 && errno == EWOULDBLOCK); #elif defined(__MINGW32__) || defined(_MSC_VER) ULONG mode; int len; char b; mode = 1; if(!ioctlsocket(netconn->socket, FIONBIO, &mode)) return FALSE; len = recv(netconn->socket, &b, 1, MSG_PEEK); mode = 0; if(!ioctlsocket(netconn->socket, FIONBIO, &mode)) return FALSE; return len == 1 || (len == -1 && errno == WSAEWOULDBLOCK); #else FIXME("not supported on this platform\n"); return TRUE; #endif } LPCVOID NETCON_GetCert(netconn_t *connection) { #ifdef SONAME_LIBSSL X509* cert; LPCVOID r = NULL; if (!connection->ssl_s) return NULL; cert = pSSL_get_peer_certificate(connection->ssl_s); r = X509_to_cert_context(cert); return r; #else FIXME("not supported on this platform\n"); return NULL; #endif } int NETCON_GetCipherStrength(netconn_t *connection) { #ifdef SONAME_LIBSSL #if defined(OPENSSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x0090707f) const SSL_CIPHER *cipher; #else SSL_CIPHER *cipher; #endif int bits = 0; if (!connection->ssl_s) return 0; cipher = pSSL_get_current_cipher(connection->ssl_s); if (!cipher) return 0; pSSL_CIPHER_get_bits(cipher, &bits); return bits; #else FIXME("not supported on this platform\n"); return 0; #endif } DWORD NETCON_set_timeout(netconn_t *connection, BOOL send, DWORD value) { int result; struct timeval tv; /* value is in milliseconds, convert to struct timeval */ if (value == INFINITE) { tv.tv_sec = 0; tv.tv_usec = 0; } else { tv.tv_sec = value / 1000; tv.tv_usec = (value % 1000) * 1000; } result = setsockopt(connection->socket, SOL_SOCKET, send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv, sizeof(tv)); if (result == -1) { WARN("setsockopt failed (%s)\n", strerror(errno)); return sock_get_error(errno); } return ERROR_SUCCESS; }