/* * Wininet - networking layer. Uses unix sockets. * * 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 */ #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 #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. */ 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 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 DWORD create_netconn_socket(server_t *server, netconn_t *netconn, DWORD timeout) { int result; ULONG 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, (void *)&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; 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); 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; DeleteSecurityContext(&netconn->ssl_ctx); } closesocket(netconn->socket); 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); } /* 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; } 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); 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 = 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 = 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(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; } } } if(status != SEC_E_OK || res != ERROR_SUCCESS) { WARN("Failed to initialize security context failed: %08x\n", status); heap_free(connection->ssl_buf); connection->ssl_buf = NULL; DeleteSecurityContext(&ctx); return res ? res : ERROR_INTERNET_SECURITY_CHANNEL_ERROR; } TRACE("established SSL connection\n"); connection->ssl_ctx = ctx; 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(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 */) { if(!connection->secure) { *sent = send(connection->socket, msg, len, flags); if (*sent == -1) return sock_get_error(errno); return 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, 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; 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; }else { buf_len = recv(conn->socket, conn->ssl_buf+conn->extra_len, ssl_buf_size-conn->extra_len, 0); if(buf_len < 0) { WARN("recv failed\n"); return FALSE; } if(!buf_len) { *eof = TRUE; return TRUE; } } *ret_size = 0; *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 TRUE; case SEC_E_INCOMPLETE_MESSAGE: assert(buf_len < ssl_buf_size); size = recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0); if(size < 1) return FALSE; buf_len += size; continue; default: WARN("failed: %08x\n", res); return FALSE; } } 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 FALSE; 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 FALSE; conn->extra_len = bufs[i].cbBuffer; memcpy(conn->extra_buf, bufs[i].pvBuffer, conn->extra_len); } } return TRUE; } /****************************************************************************** * 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 { SIZE_T size = 0, cread; BOOL res, eof; 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; } /* check if we have enough data from the peek buffer */ if(!(flags & MSG_WAITALL) || size == len) { *recvd = size; return ERROR_SUCCESS; } } do { res = read_ssl_chunk(connection, (BYTE*)buf+size, len-size, &cread, &eof); if(!res) { WARN("read_ssl_chunk failed\n"); if(!size) return ERROR_INTERNET_CONNECTION_ABORTED; break; } if(eof) { TRACE("EOF\n"); break; } size += cread; }while(!size || ((flags & MSG_WAITALL) && size < len)); TRACE("received %ld bytes\n", size); *recvd = size; return ERROR_SUCCESS; } } /****************************************************************************** * 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 ULONG unread; int retval = ioctlsocket(connection->socket, FIONREAD, &unread); if (!retval) { TRACE("%d bytes of queued, but unread data\n", unread); *available += unread; } #endif } else { *available = connection->peek_len; } 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) { const CERT_CONTEXT *ret; SECURITY_STATUS res; if (!connection->secure) return NULL; 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; 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; }