| /* |
| * Wininet - networking layer |
| * |
| * Copyright 2002 TransGaming Technologies Inc. |
| * Copyright 2013 Jacek Caban for CodeWeavers |
| * |
| * 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 |
| */ |
| |
| #define NONAMELESSUNION |
| |
| #include "ws2tcpip.h" |
| |
| #include <time.h> |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <assert.h> |
| |
| #include "wine/library.h" |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wininet.h" |
| #include "winerror.h" |
| |
| #include "wine/debug.h" |
| #include "internet.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(wininet); |
| |
| 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_SIGNATURE_VALID | |
| 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_SIGNATURE_VALID) { |
| WARN("CERT_TRUST_IS_NOT_SIGNATURE_VALID\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_NOT_SIGNATURE_VALID; |
| } |
| |
| 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 SecHandle cred_handle, compat_cred_handle; |
| static BOOL cred_handle_initialized, have_compat_cred_handle; |
| |
| static CRITICAL_SECTION init_sechandle_cs; |
| static CRITICAL_SECTION_DEBUG init_sechandle_cs_debug = { |
| 0, 0, &init_sechandle_cs, |
| { &init_sechandle_cs_debug.ProcessLocksList, |
| &init_sechandle_cs_debug.ProcessLocksList }, |
| 0, 0, { (DWORD_PTR)(__FILE__ ": init_sechandle_cs") } |
| }; |
| static CRITICAL_SECTION init_sechandle_cs = { &init_sechandle_cs_debug, -1, 0, 0, 0, 0 }; |
| |
| static BOOL ensure_cred_handle(void) |
| { |
| SECURITY_STATUS res = SEC_E_OK; |
| |
| EnterCriticalSection(&init_sechandle_cs); |
| |
| if(!cred_handle_initialized) { |
| SCHANNEL_CRED cred = {SCHANNEL_CRED_VERSION}; |
| SecPkgCred_SupportedProtocols prots; |
| |
| res = AcquireCredentialsHandleW(NULL, (WCHAR*)UNISP_NAME_W, SECPKG_CRED_OUTBOUND, NULL, &cred, |
| NULL, NULL, &cred_handle, NULL); |
| if(res == SEC_E_OK) { |
| res = QueryCredentialsAttributesA(&cred_handle, SECPKG_ATTR_SUPPORTED_PROTOCOLS, &prots); |
| if(res != SEC_E_OK || (prots.grbitProtocol & SP_PROT_TLS1_1PLUS_CLIENT)) { |
| cred.grbitEnabledProtocols = prots.grbitProtocol & ~SP_PROT_TLS1_1PLUS_CLIENT; |
| res = AcquireCredentialsHandleW(NULL, (WCHAR*)UNISP_NAME_W, SECPKG_CRED_OUTBOUND, NULL, &cred, |
| NULL, NULL, &compat_cred_handle, NULL); |
| have_compat_cred_handle = res == SEC_E_OK; |
| } |
| } |
| |
| cred_handle_initialized = res == SEC_E_OK; |
| } |
| |
| LeaveCriticalSection(&init_sechandle_cs); |
| |
| if(res != SEC_E_OK) { |
| WARN("Failed: %08x\n", res); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| static BOOL winsock_loaded = FALSE; |
| |
| static BOOL WINAPI winsock_startup(INIT_ONCE *once, void *param, void **context) |
| { |
| WSADATA wsa_data; |
| DWORD res; |
| |
| res = WSAStartup(MAKEWORD(1,1), &wsa_data); |
| if(res == ERROR_SUCCESS) |
| winsock_loaded = TRUE; |
| else |
| ERR("WSAStartup failed: %u\n", res); |
| return TRUE; |
| } |
| |
| void init_winsock(void) |
| { |
| static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT; |
| InitOnceExecuteOnce(&init_once, winsock_startup, NULL, NULL); |
| } |
| |
| static void set_socket_blocking(netconn_t *conn, BOOL is_blocking) |
| { |
| if(conn->is_blocking != is_blocking) { |
| ULONG arg = !is_blocking; |
| ioctlsocket(conn->socket, FIONBIO, &arg); |
| } |
| conn->is_blocking = is_blocking; |
| } |
| |
| static DWORD create_netconn_socket(server_t *server, netconn_t *netconn, DWORD timeout) |
| { |
| int result; |
| ULONG flag; |
| DWORD res; |
| |
| init_winsock(); |
| |
| assert(server->addr_len); |
| result = netconn->socket = socket(server->addr.ss_family, SOCK_STREAM, 0); |
| if(result != -1) { |
| set_socket_blocking(netconn, FALSE); |
| result = connect(netconn->socket, (struct sockaddr*)&server->addr, server->addr_len); |
| if(result == -1) |
| { |
| res = WSAGetLastError(); |
| if (res == WSAEINPROGRESS || res == WSAEWOULDBLOCK) { |
| FD_SET set; |
| int res; |
| socklen_t len = sizeof(res); |
| TIMEVAL timeout_timeval = {0, timeout*1000}; |
| |
| FD_ZERO(&set); |
| FD_SET(netconn->socket, &set); |
| res = select(netconn->socket+1, NULL, &set, NULL, &timeout_timeval); |
| if(!res || res == SOCKET_ERROR) { |
| closesocket(netconn->socket); |
| netconn->socket = -1; |
| return ERROR_INTERNET_CANNOT_CONNECT; |
| } |
| if (!getsockopt(netconn->socket, SOL_SOCKET, SO_ERROR, (void *)&res, &len) && !res) |
| result = 0; |
| } |
| } |
| if(result == -1) |
| { |
| closesocket(netconn->socket); |
| netconn->socket = -1; |
| } |
| } |
| if(result == -1) |
| return ERROR_INTERNET_CANNOT_CONNECT; |
| |
| flag = 1; |
| result = setsockopt(netconn->socket, IPPROTO_TCP, TCP_NODELAY, (void*)&flag, sizeof(flag)); |
| if(result < 0) |
| WARN("setsockopt(TCP_NODELAY) failed\n"); |
| |
| 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; |
| |
| 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); |
| SecInvalidateHandle(&netconn->ssl_ctx); |
| |
| 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; |
| } |
| |
| BOOL is_valid_netconn(netconn_t *netconn) |
| { |
| return netconn && netconn->socket != -1; |
| } |
| |
| void close_netconn(netconn_t *netconn) |
| { |
| closesocket(netconn->socket); |
| netconn->socket = -1; |
| } |
| |
| void free_netconn(netconn_t *netconn) |
| { |
| server_release(netconn->server); |
| |
| if (netconn->secure) { |
| heap_free(netconn->peek_msg_mem); |
| netconn->peek_msg_mem = NULL; |
| netconn->peek_msg = NULL; |
| netconn->peek_len = 0; |
| heap_free(netconn->ssl_buf); |
| netconn->ssl_buf = NULL; |
| heap_free(netconn->extra_buf); |
| netconn->extra_buf = NULL; |
| netconn->extra_len = 0; |
| if (SecIsValidHandle(&netconn->ssl_ctx)) |
| DeleteSecurityContext(&netconn->ssl_ctx); |
| } |
| |
| close_netconn(netconn); |
| heap_free(netconn); |
| } |
| |
| void NETCON_unload(void) |
| { |
| if(cred_handle_initialized) |
| FreeCredentialsHandle(&cred_handle); |
| if(have_compat_cred_handle) |
| FreeCredentialsHandle(&compat_cred_handle); |
| DeleteCriticalSection(&init_sechandle_cs); |
| if(winsock_loaded) |
| WSACleanup(); |
| } |
| |
| int sock_send(int fd, const void *msg, size_t len, int flags) |
| { |
| int ret; |
| do |
| { |
| ret = send(fd, msg, len, flags); |
| } |
| while(ret == -1 && WSAGetLastError() == WSAEINTR); |
| return ret; |
| } |
| |
| int sock_recv(int fd, void *msg, size_t len, int flags) |
| { |
| int ret; |
| do |
| { |
| ret = recv(fd, msg, len, flags); |
| } |
| while(ret == -1 && WSAGetLastError() == WSAEINTR); |
| return ret; |
| } |
| |
| static DWORD netcon_secure_connect_setup(netconn_t *connection, BOOL compat_mode) |
| { |
| SecBuffer out_buf = {0, SECBUFFER_TOKEN, NULL}, in_bufs[2] = {{0, SECBUFFER_TOKEN}, {0, SECBUFFER_EMPTY}}; |
| SecBufferDesc out_desc = {SECBUFFER_VERSION, 1, &out_buf}, in_desc = {SECBUFFER_VERSION, 2, in_bufs}; |
| SecHandle *cred = &cred_handle; |
| BYTE *read_buf; |
| SIZE_T read_buf_size = 2048; |
| ULONG attrs = 0; |
| CtxtHandle ctx; |
| SSIZE_T size; |
| int bits; |
| const CERT_CONTEXT *cert; |
| SECURITY_STATUS status; |
| DWORD res = ERROR_SUCCESS; |
| |
| const DWORD isc_req_flags = ISC_REQ_ALLOCATE_MEMORY|ISC_REQ_USE_SESSION_KEY|ISC_REQ_CONFIDENTIALITY |
| |ISC_REQ_SEQUENCE_DETECT|ISC_REQ_REPLAY_DETECT|ISC_REQ_MANUAL_CRED_VALIDATION; |
| |
| if(!ensure_cred_handle()) |
| return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; |
| |
| if(compat_mode) { |
| if(!have_compat_cred_handle) |
| return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; |
| cred = &compat_cred_handle; |
| } |
| |
| read_buf = heap_alloc(read_buf_size); |
| if(!read_buf) |
| return ERROR_OUTOFMEMORY; |
| |
| status = InitializeSecurityContextW(cred, NULL, connection->server->name, isc_req_flags, 0, 0, NULL, 0, |
| &ctx, &out_desc, &attrs, NULL); |
| |
| assert(status != SEC_E_OK); |
| |
| set_socket_blocking(connection, TRUE); |
| |
| while(status == SEC_I_CONTINUE_NEEDED || status == SEC_E_INCOMPLETE_MESSAGE) { |
| if(out_buf.cbBuffer) { |
| assert(status == SEC_I_CONTINUE_NEEDED); |
| |
| TRACE("sending %u bytes\n", out_buf.cbBuffer); |
| |
| size = sock_send(connection->socket, out_buf.pvBuffer, out_buf.cbBuffer, 0); |
| if(size != out_buf.cbBuffer) { |
| ERR("send failed\n"); |
| status = ERROR_INTERNET_SECURITY_CHANNEL_ERROR; |
| break; |
| } |
| |
| FreeContextBuffer(out_buf.pvBuffer); |
| out_buf.pvBuffer = NULL; |
| out_buf.cbBuffer = 0; |
| } |
| |
| if(status == SEC_I_CONTINUE_NEEDED) { |
| assert(in_bufs[1].cbBuffer < read_buf_size); |
| |
| memmove(read_buf, (BYTE*)in_bufs[0].pvBuffer+in_bufs[0].cbBuffer-in_bufs[1].cbBuffer, in_bufs[1].cbBuffer); |
| in_bufs[0].cbBuffer = in_bufs[1].cbBuffer; |
| |
| in_bufs[1].BufferType = SECBUFFER_EMPTY; |
| in_bufs[1].cbBuffer = 0; |
| in_bufs[1].pvBuffer = NULL; |
| } |
| |
| assert(in_bufs[0].BufferType == SECBUFFER_TOKEN); |
| assert(in_bufs[1].BufferType == SECBUFFER_EMPTY); |
| |
| if(in_bufs[0].cbBuffer + 1024 > read_buf_size) { |
| BYTE *new_read_buf; |
| |
| new_read_buf = heap_realloc(read_buf, read_buf_size + 1024); |
| if(!new_read_buf) { |
| status = E_OUTOFMEMORY; |
| break; |
| } |
| |
| in_bufs[0].pvBuffer = read_buf = new_read_buf; |
| read_buf_size += 1024; |
| } |
| |
| size = sock_recv(connection->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0); |
| if(size < 1) { |
| WARN("recv error\n"); |
| res = ERROR_INTERNET_SECURITY_CHANNEL_ERROR; |
| break; |
| } |
| |
| TRACE("recv %lu bytes\n", size); |
| |
| in_bufs[0].cbBuffer += size; |
| in_bufs[0].pvBuffer = read_buf; |
| status = InitializeSecurityContextW(cred, &ctx, connection->server->name, isc_req_flags, 0, 0, &in_desc, |
| 0, NULL, &out_desc, &attrs, NULL); |
| TRACE("InitializeSecurityContext ret %08x\n", status); |
| |
| if(status == SEC_E_OK) { |
| if(SecIsValidHandle(&connection->ssl_ctx)) |
| DeleteSecurityContext(&connection->ssl_ctx); |
| connection->ssl_ctx = ctx; |
| |
| if(in_bufs[1].BufferType == SECBUFFER_EXTRA) |
| FIXME("SECBUFFER_EXTRA not supported\n"); |
| |
| status = QueryContextAttributesW(&ctx, SECPKG_ATTR_STREAM_SIZES, &connection->ssl_sizes); |
| if(status != SEC_E_OK) { |
| WARN("Could not get sizes\n"); |
| break; |
| } |
| |
| status = QueryContextAttributesW(&ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&cert); |
| if(status == SEC_E_OK) { |
| res = netconn_verify_cert(connection, cert, cert->hCertStore); |
| CertFreeCertificateContext(cert); |
| if(res != ERROR_SUCCESS) { |
| WARN("cert verify failed: %u\n", res); |
| break; |
| } |
| }else { |
| WARN("Could not get cert\n"); |
| break; |
| } |
| |
| connection->ssl_buf = heap_alloc(connection->ssl_sizes.cbHeader + connection->ssl_sizes.cbMaximumMessage |
| + connection->ssl_sizes.cbTrailer); |
| if(!connection->ssl_buf) { |
| res = GetLastError(); |
| break; |
| } |
| } |
| } |
| |
| heap_free(read_buf); |
| |
| if(status != SEC_E_OK || res != ERROR_SUCCESS) { |
| WARN("Failed to establish SSL connection: %08x (%u)\n", status, res); |
| heap_free(connection->ssl_buf); |
| connection->ssl_buf = NULL; |
| return res ? res : ERROR_INTERNET_SECURITY_CHANNEL_ERROR; |
| } |
| |
| TRACE("established SSL connection\n"); |
| connection->secure = TRUE; |
| connection->security_flags |= SECURITY_FLAG_SECURE; |
| |
| 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; |
| |
| if(connection->mask_errors) |
| connection->server->security_flags = connection->security_flags; |
| return ERROR_SUCCESS; |
| } |
| |
| /****************************************************************************** |
| * NETCON_secure_connect |
| * Initiates a secure connection over an existing plaintext connection. |
| */ |
| DWORD NETCON_secure_connect(netconn_t *connection, server_t *server) |
| { |
| DWORD res; |
| |
| /* 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; |
| } |
| |
| /* connect with given TLS options */ |
| res = netcon_secure_connect_setup(connection, FALSE); |
| if (res == ERROR_SUCCESS) |
| return res; |
| |
| /* FIXME: when got version alert and FIN from server */ |
| /* fallback to connect without TLSv1.1/TLSv1.2 */ |
| if (res == ERROR_INTERNET_SECURITY_CHANNEL_ERROR && have_compat_cred_handle) |
| { |
| closesocket(connection->socket); |
| res = create_netconn_socket(connection->server, connection, 500); |
| if (res != ERROR_SUCCESS) |
| return res; |
| res = netcon_secure_connect_setup(connection, TRUE); |
| } |
| return res; |
| } |
| |
| static BOOL send_ssl_chunk(netconn_t *conn, const void *msg, size_t size) |
| { |
| SecBuffer bufs[4] = { |
| {conn->ssl_sizes.cbHeader, SECBUFFER_STREAM_HEADER, conn->ssl_buf}, |
| {size, SECBUFFER_DATA, conn->ssl_buf+conn->ssl_sizes.cbHeader}, |
| {conn->ssl_sizes.cbTrailer, SECBUFFER_STREAM_TRAILER, conn->ssl_buf+conn->ssl_sizes.cbHeader+size}, |
| {0, SECBUFFER_EMPTY, NULL} |
| }; |
| SecBufferDesc buf_desc = {SECBUFFER_VERSION, sizeof(bufs)/sizeof(*bufs), bufs}; |
| SECURITY_STATUS res; |
| |
| memcpy(bufs[1].pvBuffer, msg, size); |
| res = EncryptMessage(&conn->ssl_ctx, 0, &buf_desc, 0); |
| if(res != SEC_E_OK) { |
| WARN("EncryptMessage failed\n"); |
| return FALSE; |
| } |
| |
| if(sock_send(conn->socket, conn->ssl_buf, bufs[0].cbBuffer+bufs[1].cbBuffer+bufs[2].cbBuffer, 0) < 1) { |
| WARN("send failed\n"); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| /****************************************************************************** |
| * 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 */) |
| { |
| /* send is always blocking. */ |
| set_socket_blocking(connection, TRUE); |
| |
| if(!connection->secure) |
| { |
| *sent = sock_send(connection->socket, msg, len, flags); |
| return *sent == -1 ? WSAGetLastError() : ERROR_SUCCESS; |
| } |
| else |
| { |
| const BYTE *ptr = msg; |
| size_t chunk_size; |
| |
| *sent = 0; |
| |
| while(len) { |
| chunk_size = min(len, connection->ssl_sizes.cbMaximumMessage); |
| if(!send_ssl_chunk(connection, ptr, chunk_size)) |
| return ERROR_INTERNET_SECURITY_CHANNEL_ERROR; |
| |
| *sent += chunk_size; |
| ptr += chunk_size; |
| len -= chunk_size; |
| } |
| |
| return ERROR_SUCCESS; |
| } |
| } |
| |
| static BOOL read_ssl_chunk(netconn_t *conn, void *buf, SIZE_T buf_size, BOOL blocking, SIZE_T *ret_size, BOOL *eof) |
| { |
| const SIZE_T ssl_buf_size = conn->ssl_sizes.cbHeader+conn->ssl_sizes.cbMaximumMessage+conn->ssl_sizes.cbTrailer; |
| SecBuffer bufs[4]; |
| SecBufferDesc buf_desc = {SECBUFFER_VERSION, sizeof(bufs)/sizeof(*bufs), bufs}; |
| SSIZE_T size, buf_len = 0; |
| int i; |
| SECURITY_STATUS res; |
| |
| assert(conn->extra_len < ssl_buf_size); |
| |
| if(conn->extra_len) { |
| memcpy(conn->ssl_buf, conn->extra_buf, conn->extra_len); |
| buf_len = conn->extra_len; |
| conn->extra_len = 0; |
| heap_free(conn->extra_buf); |
| conn->extra_buf = NULL; |
| } |
| |
| set_socket_blocking(conn, blocking && !buf_len); |
| size = sock_recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0); |
| if(size < 0) { |
| if(!buf_len) { |
| if(WSAGetLastError() == WSAEWOULDBLOCK) { |
| TRACE("would block\n"); |
| return WSAEWOULDBLOCK; |
| } |
| WARN("recv failed\n"); |
| return ERROR_INTERNET_CONNECTION_ABORTED; |
| } |
| }else { |
| buf_len += size; |
| } |
| |
| if(!buf_len) { |
| TRACE("EOF\n"); |
| *eof = TRUE; |
| *ret_size = 0; |
| return ERROR_SUCCESS; |
| } |
| |
| *eof = FALSE; |
| |
| do { |
| memset(bufs, 0, sizeof(bufs)); |
| bufs[0].BufferType = SECBUFFER_DATA; |
| bufs[0].cbBuffer = buf_len; |
| bufs[0].pvBuffer = conn->ssl_buf; |
| |
| res = DecryptMessage(&conn->ssl_ctx, &buf_desc, 0, NULL); |
| switch(res) { |
| case SEC_E_OK: |
| break; |
| case SEC_I_CONTEXT_EXPIRED: |
| TRACE("context expired\n"); |
| *eof = TRUE; |
| return ERROR_SUCCESS; |
| case SEC_E_INCOMPLETE_MESSAGE: |
| assert(buf_len < ssl_buf_size); |
| |
| set_socket_blocking(conn, blocking); |
| size = sock_recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0); |
| if(size < 1) { |
| if(size < 0 && WSAGetLastError() == WSAEWOULDBLOCK) { |
| TRACE("would block\n"); |
| |
| /* FIXME: Optimize extra_buf usage. */ |
| conn->extra_buf = heap_alloc(buf_len); |
| if(!conn->extra_buf) |
| return ERROR_NOT_ENOUGH_MEMORY; |
| |
| conn->extra_len = buf_len; |
| memcpy(conn->extra_buf, conn->ssl_buf, conn->extra_len); |
| return WSAEWOULDBLOCK; |
| } |
| |
| return ERROR_INTERNET_CONNECTION_ABORTED; |
| } |
| |
| buf_len += size; |
| continue; |
| default: |
| WARN("failed: %08x\n", res); |
| return ERROR_INTERNET_CONNECTION_ABORTED; |
| } |
| } while(res != SEC_E_OK); |
| |
| for(i=0; i < sizeof(bufs)/sizeof(*bufs); i++) { |
| if(bufs[i].BufferType == SECBUFFER_DATA) { |
| size = min(buf_size, bufs[i].cbBuffer); |
| memcpy(buf, bufs[i].pvBuffer, size); |
| if(size < bufs[i].cbBuffer) { |
| assert(!conn->peek_len); |
| conn->peek_msg_mem = conn->peek_msg = heap_alloc(bufs[i].cbBuffer - size); |
| if(!conn->peek_msg) |
| return ERROR_NOT_ENOUGH_MEMORY; |
| conn->peek_len = bufs[i].cbBuffer-size; |
| memcpy(conn->peek_msg, (char*)bufs[i].pvBuffer+size, conn->peek_len); |
| } |
| |
| *ret_size = size; |
| } |
| } |
| |
| for(i=0; i < sizeof(bufs)/sizeof(*bufs); i++) { |
| if(bufs[i].BufferType == SECBUFFER_EXTRA) { |
| conn->extra_buf = heap_alloc(bufs[i].cbBuffer); |
| if(!conn->extra_buf) |
| return ERROR_NOT_ENOUGH_MEMORY; |
| |
| conn->extra_len = bufs[i].cbBuffer; |
| memcpy(conn->extra_buf, bufs[i].pvBuffer, conn->extra_len); |
| } |
| } |
| |
| return ERROR_SUCCESS; |
| } |
| |
| /****************************************************************************** |
| * 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, BOOL blocking, int *recvd) |
| { |
| *recvd = 0; |
| if (!len) |
| return ERROR_SUCCESS; |
| |
| if (!connection->secure) |
| { |
| set_socket_blocking(connection, blocking); |
| *recvd = sock_recv(connection->socket, buf, len, 0); |
| return *recvd == -1 ? WSAGetLastError() : ERROR_SUCCESS; |
| } |
| else |
| { |
| SIZE_T size = 0; |
| BOOL eof; |
| DWORD res; |
| |
| if(connection->peek_msg) { |
| size = min(len, connection->peek_len); |
| memcpy(buf, connection->peek_msg, size); |
| connection->peek_len -= size; |
| connection->peek_msg += size; |
| |
| if(!connection->peek_len) { |
| heap_free(connection->peek_msg_mem); |
| connection->peek_msg_mem = connection->peek_msg = NULL; |
| } |
| |
| *recvd = size; |
| return ERROR_SUCCESS; |
| } |
| |
| do { |
| res = read_ssl_chunk(connection, (BYTE*)buf, len, blocking, &size, &eof); |
| if(res != ERROR_SUCCESS) { |
| if(res == WSAEWOULDBLOCK) { |
| if(size) |
| res = ERROR_SUCCESS; |
| }else { |
| WARN("read_ssl_chunk failed\n"); |
| } |
| break; |
| } |
| }while(!size && !eof); |
| |
| TRACE("received %ld bytes\n", size); |
| *recvd = size; |
| return res; |
| } |
| } |
| |
| BOOL NETCON_is_alive(netconn_t *netconn) |
| { |
| int len; |
| char b; |
| |
| set_socket_blocking(netconn, FALSE); |
| len = sock_recv(netconn->socket, &b, 1, MSG_PEEK); |
| |
| return len == 1 || (len == -1 && WSAGetLastError() == WSAEWOULDBLOCK); |
| } |
| |
| LPCVOID NETCON_GetCert(netconn_t *connection) |
| { |
| const CERT_CONTEXT *ret; |
| SECURITY_STATUS res; |
| |
| res = QueryContextAttributesW(&connection->ssl_ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&ret); |
| return res == SEC_E_OK ? ret : NULL; |
| } |
| |
| int NETCON_GetCipherStrength(netconn_t *connection) |
| { |
| SecPkgContext_ConnectionInfo conn_info; |
| SECURITY_STATUS res; |
| |
| if (!connection->secure) |
| return 0; |
| |
| res = QueryContextAttributesW(&connection->ssl_ctx, SECPKG_ATTR_CONNECTION_INFO, (void*)&conn_info); |
| if(res != SEC_E_OK) |
| WARN("QueryContextAttributesW failed: %08x\n", res); |
| return res == SEC_E_OK ? conn_info.dwCipherStrength : 0; |
| } |
| |
| DWORD NETCON_set_timeout(netconn_t *connection, BOOL send, DWORD value) |
| { |
| int result; |
| |
| result = setsockopt(connection->socket, SOL_SOCKET, |
| send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&value, |
| sizeof(value)); |
| if (result == -1) |
| { |
| WARN("setsockopt failed\n"); |
| return WSAGetLastError(); |
| } |
| return ERROR_SUCCESS; |
| } |
