mirror of
git://source.winehq.org/git/wine.git
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861 lines
27 KiB
C
861 lines
27 KiB
C
/*
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* Copyright 2008 Hans Leidekker for CodeWeavers
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* Copyright 2013 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "ws2tcpip.h"
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#include "winhttp.h"
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#include "schannel.h"
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#include "wine/debug.h"
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#include "winhttp_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(winhttp);
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static int sock_send(int fd, const void *msg, size_t len, WSAOVERLAPPED *ovr)
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{
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WSABUF wsabuf;
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DWORD size;
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int err;
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wsabuf.len = len;
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wsabuf.buf = (void *)msg;
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if (!WSASend( (SOCKET)fd, &wsabuf, 1, &size, 0, ovr, NULL ))
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{
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assert( size == len );
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return size;
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}
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err = WSAGetLastError();
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if (!(ovr && err == WSA_IO_PENDING)) WARN( "send error %d\n", err );
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return -1;
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}
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BOOL netconn_wait_overlapped_result( struct netconn *conn, WSAOVERLAPPED *ovr, DWORD *len )
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{
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OVERLAPPED *completion_ovr;
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ULONG_PTR key;
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if (!GetQueuedCompletionStatus( conn->port, len, &key, &completion_ovr, INFINITE ))
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{
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WARN( "GetQueuedCompletionStatus failed, err %lu.\n", GetLastError() );
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return FALSE;
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}
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if ((key != conn->socket && conn->socket != -1) || completion_ovr != (OVERLAPPED *)ovr)
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{
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ERR( "Unexpected completion key %Ix, overlapped %p.\n", key, completion_ovr );
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return FALSE;
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}
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return TRUE;
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}
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static int sock_recv(int fd, void *msg, size_t len, int flags)
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{
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int ret;
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do
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{
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if ((ret = recv(fd, msg, len, flags)) == -1) WARN( "recv error %d\n", WSAGetLastError() );
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}
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while(ret == -1 && WSAGetLastError() == WSAEINTR);
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return ret;
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}
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static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, WCHAR *server, DWORD security_flags, BOOL check_revocation )
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{
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HCERTSTORE store = cert->hCertStore;
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BOOL ret;
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CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
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PCCERT_CHAIN_CONTEXT chain;
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char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
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char *server_auth[] = { oid_server_auth };
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DWORD err = ERROR_SUCCESS;
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TRACE("verifying %s\n", debugstr_w( server ));
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chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
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chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
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ret = CertGetCertificateChain( NULL, cert, NULL, store, &chainPara,
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check_revocation ? CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT : 0,
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NULL, &chain );
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if (ret)
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{
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if (chain->TrustStatus.dwErrorStatus)
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{
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static const DWORD supportedErrors =
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CERT_TRUST_IS_NOT_TIME_VALID |
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CERT_TRUST_IS_UNTRUSTED_ROOT |
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CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
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if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
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{
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if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
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err = ERROR_WINHTTP_SECURE_CERT_DATE_INVALID;
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}
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else if ((chain->TrustStatus.dwErrorStatus &
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CERT_TRUST_IS_UNTRUSTED_ROOT) ||
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(chain->TrustStatus.dwErrorStatus &
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CERT_TRUST_IS_PARTIAL_CHAIN))
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{
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if (!(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
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err = ERROR_WINHTTP_SECURE_INVALID_CA;
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}
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else if ((chain->TrustStatus.dwErrorStatus &
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CERT_TRUST_IS_OFFLINE_REVOCATION) ||
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(chain->TrustStatus.dwErrorStatus &
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CERT_TRUST_REVOCATION_STATUS_UNKNOWN))
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err = ERROR_WINHTTP_SECURE_CERT_REV_FAILED;
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else if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED)
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err = ERROR_WINHTTP_SECURE_CERT_REVOKED;
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else if (chain->TrustStatus.dwErrorStatus &
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CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
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{
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if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE))
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err = ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE;
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}
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else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
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err = ERROR_WINHTTP_SECURE_INVALID_CERT;
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}
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if (!err)
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{
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CERT_CHAIN_POLICY_PARA policyPara;
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SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
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CERT_CHAIN_POLICY_STATUS policyStatus;
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CERT_CHAIN_CONTEXT chainCopy;
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/* Clear chain->TrustStatus.dwErrorStatus so
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* CertVerifyCertificateChainPolicy will verify additional checks
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* rather than stopping with an existing, ignored error.
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*/
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memcpy(&chainCopy, chain, sizeof(chainCopy));
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chainCopy.TrustStatus.dwErrorStatus = 0;
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sslExtraPolicyPara.cbSize = sizeof(sslExtraPolicyPara);
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sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
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sslExtraPolicyPara.pwszServerName = server;
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sslExtraPolicyPara.fdwChecks = security_flags;
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policyPara.cbSize = sizeof(policyPara);
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policyPara.dwFlags = 0;
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policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
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ret = CertVerifyCertificateChainPolicy( CERT_CHAIN_POLICY_SSL,
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&chainCopy, &policyPara,
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&policyStatus );
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/* Any error in the policy status indicates that the
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* policy couldn't be verified.
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*/
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if (ret && policyStatus.dwError)
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{
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if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
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err = ERROR_WINHTTP_SECURE_CERT_CN_INVALID;
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else
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err = ERROR_WINHTTP_SECURE_INVALID_CERT;
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}
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}
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CertFreeCertificateChain( chain );
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}
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else
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err = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
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TRACE( "returning %#lx\n", err );
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return err;
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}
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static BOOL winsock_loaded;
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void netconn_unload( void )
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{
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if (winsock_loaded) WSACleanup();
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}
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static BOOL WINAPI winsock_startup( INIT_ONCE *once, void *param, void **ctx )
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{
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int ret;
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WSADATA data;
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if (!(ret = WSAStartup( MAKEWORD(1,1), &data ))) winsock_loaded = TRUE;
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else ERR( "WSAStartup failed: %d\n", ret );
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return TRUE;
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}
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static void winsock_init(void)
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{
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static INIT_ONCE once = INIT_ONCE_STATIC_INIT;
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InitOnceExecuteOnce( &once, winsock_startup, NULL, NULL );
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}
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static void set_blocking( struct netconn *conn, BOOL blocking )
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{
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ULONG state = !blocking;
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ioctlsocket( conn->socket, FIONBIO, &state );
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}
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DWORD netconn_create( struct hostdata *host, const struct sockaddr_storage *sockaddr, int timeout,
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struct netconn **ret_conn )
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{
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struct netconn *conn;
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unsigned int addr_len;
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DWORD ret;
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winsock_init();
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if (!(conn = calloc( 1, sizeof(*conn) ))) return ERROR_OUTOFMEMORY;
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conn->refs = 1;
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conn->host = host;
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conn->sockaddr = *sockaddr;
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if ((conn->socket = WSASocketW( sockaddr->ss_family, SOCK_STREAM, 0, NULL, 0, WSA_FLAG_OVERLAPPED )) == -1)
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{
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ret = WSAGetLastError();
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WARN( "unable to create socket (%lu)\n", ret );
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free( conn );
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return ret;
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}
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switch (conn->sockaddr.ss_family)
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{
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case AF_INET:
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addr_len = sizeof(struct sockaddr_in);
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break;
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case AF_INET6:
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addr_len = sizeof(struct sockaddr_in6);
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break;
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default:
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ERR( "unhandled family %u\n", conn->sockaddr.ss_family );
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free( conn );
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return ERROR_INVALID_PARAMETER;
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}
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if (timeout > 0) set_blocking( conn, FALSE );
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if (!connect( conn->socket, (const struct sockaddr *)&conn->sockaddr, addr_len )) ret = ERROR_SUCCESS;
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else
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{
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ret = WSAGetLastError();
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if (ret == WSAEWOULDBLOCK || ret == WSAEINPROGRESS)
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{
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TIMEVAL timeval = { timeout / 1000, (timeout % 1000) * 1000 };
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FD_SET set_read, set_error;
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int res;
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FD_ZERO( &set_read );
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FD_SET( conn->socket, &set_read );
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FD_ZERO( &set_error );
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FD_SET( conn->socket, &set_error );
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if ((res = select( conn->socket + 1, NULL, &set_read, &set_error, &timeval )) > 0)
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{
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if (FD_ISSET(conn->socket, &set_read)) ret = ERROR_SUCCESS;
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else assert( FD_ISSET(conn->socket, &set_error) );
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}
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else if (!res) ret = ERROR_WINHTTP_TIMEOUT;
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}
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}
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if (timeout > 0) set_blocking( conn, TRUE );
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if (ret)
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{
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WARN( "unable to connect to host (%lu)\n", ret );
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closesocket( conn->socket );
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free( conn );
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return ret == ERROR_WINHTTP_TIMEOUT ? ERROR_WINHTTP_TIMEOUT : ERROR_WINHTTP_CANNOT_CONNECT;
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}
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*ret_conn = conn;
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return ERROR_SUCCESS;
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}
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void netconn_addref( struct netconn *conn )
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{
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InterlockedIncrement( &conn->refs );
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}
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void netconn_release( struct netconn *conn )
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{
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if (InterlockedDecrement( &conn->refs )) return;
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TRACE( "Closing connection %p.\n", conn );
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if (conn->secure)
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{
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free( conn->peek_msg_mem );
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free(conn->ssl_read_buf);
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free(conn->ssl_write_buf);
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free(conn->extra_buf);
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DeleteSecurityContext(&conn->ssl_ctx);
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}
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if (conn->socket != -1)
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closesocket( conn->socket );
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release_host( conn->host );
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if (conn->port)
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CloseHandle( conn->port );
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free(conn);
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}
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DWORD netconn_secure_connect( struct netconn *conn, WCHAR *hostname, DWORD security_flags, CredHandle *cred_handle,
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BOOL check_revocation )
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{
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SecBuffer out_buf = {0, SECBUFFER_TOKEN, NULL}, in_bufs[2] = {{0, SECBUFFER_TOKEN}, {0, SECBUFFER_EMPTY}};
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SecBufferDesc out_desc = {SECBUFFER_VERSION, 1, &out_buf}, in_desc = {SECBUFFER_VERSION, 2, in_bufs};
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BYTE *read_buf;
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SIZE_T read_buf_size = 2048;
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ULONG attrs = 0;
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CtxtHandle ctx;
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SSIZE_T size;
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const CERT_CONTEXT *cert;
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SECURITY_STATUS status;
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DWORD res = ERROR_SUCCESS;
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const DWORD isc_req_flags = ISC_REQ_ALLOCATE_MEMORY|ISC_REQ_USE_SESSION_KEY|ISC_REQ_CONFIDENTIALITY
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|ISC_REQ_SEQUENCE_DETECT|ISC_REQ_REPLAY_DETECT|ISC_REQ_MANUAL_CRED_VALIDATION;
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if (!(read_buf = malloc( read_buf_size ))) return ERROR_OUTOFMEMORY;
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memset( &ctx, 0, sizeof(ctx) );
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status = InitializeSecurityContextW(cred_handle, NULL, hostname, isc_req_flags, 0, 0, NULL, 0,
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&ctx, &out_desc, &attrs, NULL);
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assert(status != SEC_E_OK);
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while(status == SEC_I_CONTINUE_NEEDED || status == SEC_E_INCOMPLETE_MESSAGE) {
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if(out_buf.cbBuffer) {
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assert(status == SEC_I_CONTINUE_NEEDED);
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TRACE( "sending %lu bytes\n", out_buf.cbBuffer );
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size = sock_send(conn->socket, out_buf.pvBuffer, out_buf.cbBuffer, NULL);
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if(size != out_buf.cbBuffer) {
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ERR("send failed\n");
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res = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
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break;
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}
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FreeContextBuffer(out_buf.pvBuffer);
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out_buf.pvBuffer = NULL;
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out_buf.cbBuffer = 0;
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}
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if(status == SEC_I_CONTINUE_NEEDED) {
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assert(in_bufs[1].cbBuffer < read_buf_size);
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memmove(read_buf, (BYTE*)in_bufs[0].pvBuffer+in_bufs[0].cbBuffer-in_bufs[1].cbBuffer, in_bufs[1].cbBuffer);
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in_bufs[0].cbBuffer = in_bufs[1].cbBuffer;
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}
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assert(in_bufs[0].BufferType == SECBUFFER_TOKEN);
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in_bufs[1].BufferType = SECBUFFER_EMPTY;
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in_bufs[1].cbBuffer = 0;
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in_bufs[1].pvBuffer = NULL;
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if(in_bufs[0].cbBuffer + 1024 > read_buf_size) {
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BYTE *new_read_buf;
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new_read_buf = realloc(read_buf, read_buf_size + 1024);
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if(!new_read_buf) {
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status = E_OUTOFMEMORY;
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break;
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}
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in_bufs[0].pvBuffer = read_buf = new_read_buf;
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read_buf_size += 1024;
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}
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size = sock_recv(conn->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0);
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if(size < 1) {
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status = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
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break;
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}
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TRACE( "recv %Iu bytes\n", size );
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in_bufs[0].cbBuffer += size;
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in_bufs[0].pvBuffer = read_buf;
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status = InitializeSecurityContextW(cred_handle, &ctx, hostname, isc_req_flags, 0, 0, &in_desc,
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0, NULL, &out_desc, &attrs, NULL);
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TRACE( "InitializeSecurityContext ret %#lx\n", status );
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if(status == SEC_E_OK) {
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if(in_bufs[1].BufferType == SECBUFFER_EXTRA)
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FIXME("SECBUFFER_EXTRA not supported\n");
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status = QueryContextAttributesW(&ctx, SECPKG_ATTR_STREAM_SIZES, &conn->ssl_sizes);
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if(status != SEC_E_OK) {
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WARN("Could not get sizes\n");
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break;
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}
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status = QueryContextAttributesW(&ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&cert);
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if(status == SEC_E_OK) {
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res = netconn_verify_cert(cert, hostname, security_flags, check_revocation);
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CertFreeCertificateContext(cert);
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if(res != ERROR_SUCCESS) {
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WARN( "cert verify failed: %lu\n", res );
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break;
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}
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}else {
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WARN("Could not get cert\n");
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break;
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}
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conn->ssl_read_buf = malloc(conn->ssl_sizes.cbHeader + conn->ssl_sizes.cbMaximumMessage + conn->ssl_sizes.cbTrailer);
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if(!conn->ssl_read_buf) {
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res = ERROR_OUTOFMEMORY;
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break;
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}
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conn->ssl_write_buf = malloc(conn->ssl_sizes.cbHeader + conn->ssl_sizes.cbMaximumMessage + conn->ssl_sizes.cbTrailer);
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if(!conn->ssl_write_buf) {
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res = ERROR_OUTOFMEMORY;
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break;
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}
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}
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}
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free(read_buf);
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if(status != SEC_E_OK || res != ERROR_SUCCESS) {
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WARN( "Failed to initialize security context: %#lx\n", status );
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free(conn->ssl_read_buf);
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conn->ssl_read_buf = NULL;
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free(conn->ssl_write_buf);
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conn->ssl_write_buf = NULL;
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DeleteSecurityContext(&ctx);
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return ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
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}
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TRACE("established SSL connection\n");
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conn->secure = TRUE;
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conn->ssl_ctx = ctx;
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return ERROR_SUCCESS;
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}
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static DWORD send_ssl_chunk( struct netconn *conn, const void *msg, size_t size, WSAOVERLAPPED *ovr )
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{
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SecBuffer bufs[4] = {
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{conn->ssl_sizes.cbHeader, SECBUFFER_STREAM_HEADER, conn->ssl_write_buf},
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{size, SECBUFFER_DATA, conn->ssl_write_buf+conn->ssl_sizes.cbHeader},
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{conn->ssl_sizes.cbTrailer, SECBUFFER_STREAM_TRAILER, conn->ssl_write_buf+conn->ssl_sizes.cbHeader+size},
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{0, SECBUFFER_EMPTY, NULL}
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};
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SecBufferDesc buf_desc = {SECBUFFER_VERSION, ARRAY_SIZE(bufs), bufs};
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SECURITY_STATUS res;
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memcpy( bufs[1].pvBuffer, msg, size );
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if ((res = EncryptMessage(&conn->ssl_ctx, 0, &buf_desc, 0)) != SEC_E_OK)
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{
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WARN( "EncryptMessage failed: %#lx\n", res );
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return res;
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}
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if (sock_send( conn->socket, conn->ssl_write_buf, bufs[0].cbBuffer + bufs[1].cbBuffer + bufs[2].cbBuffer, ovr ) < 1)
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{
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WARN("send failed\n");
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return WSAGetLastError();
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}
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return ERROR_SUCCESS;
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}
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DWORD netconn_send( struct netconn *conn, const void *msg, size_t len, int *sent, WSAOVERLAPPED *ovr )
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{
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DWORD err;
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if (ovr && !conn->port)
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{
|
|
if (!(conn->port = CreateIoCompletionPort( (HANDLE)(SOCKET)conn->socket, NULL, (ULONG_PTR)conn->socket, 0 )))
|
|
ERR( "Failed to create port.\n" );
|
|
}
|
|
|
|
if (conn->secure)
|
|
{
|
|
const BYTE *ptr = msg;
|
|
size_t chunk_size;
|
|
DWORD res;
|
|
|
|
*sent = 0;
|
|
while (len)
|
|
{
|
|
chunk_size = min( len, conn->ssl_sizes.cbMaximumMessage );
|
|
if ((res = send_ssl_chunk( conn, ptr, chunk_size, ovr )))
|
|
{
|
|
if (res == WSA_IO_PENDING) *sent += chunk_size;
|
|
return res;
|
|
}
|
|
*sent += chunk_size;
|
|
ptr += chunk_size;
|
|
len -= chunk_size;
|
|
}
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
if ((*sent = sock_send( conn->socket, msg, len, ovr )) < 0)
|
|
{
|
|
err = WSAGetLastError();
|
|
*sent = (err == WSA_IO_PENDING) ? len : 0;
|
|
return err;
|
|
}
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
static DWORD read_ssl_chunk( struct netconn *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, ARRAY_SIZE(bufs), bufs};
|
|
SSIZE_T size, buf_len;
|
|
unsigned int i;
|
|
SECURITY_STATUS res;
|
|
|
|
assert(conn->extra_len < ssl_buf_size);
|
|
|
|
if(conn->extra_len) {
|
|
memcpy(conn->ssl_read_buf, conn->extra_buf, conn->extra_len);
|
|
buf_len = conn->extra_len;
|
|
conn->extra_len = 0;
|
|
free(conn->extra_buf);
|
|
conn->extra_buf = NULL;
|
|
}else {
|
|
if ((buf_len = sock_recv( conn->socket, conn->ssl_read_buf + conn->extra_len, ssl_buf_size - conn->extra_len, 0)) < 0)
|
|
return WSAGetLastError();
|
|
|
|
if (!buf_len)
|
|
{
|
|
*eof = TRUE;
|
|
return ERROR_SUCCESS;
|
|
}
|
|
}
|
|
|
|
*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_read_buf;
|
|
|
|
switch ((res = DecryptMessage( &conn->ssl_ctx, &buf_desc, 0, NULL )))
|
|
{
|
|
case SEC_E_OK:
|
|
break;
|
|
|
|
case SEC_I_RENEGOTIATE:
|
|
TRACE("renegotiate\n");
|
|
return ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED;
|
|
|
|
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);
|
|
|
|
if ((size = sock_recv( conn->socket, conn->ssl_read_buf + buf_len, ssl_buf_size - buf_len, 0 )) < 1)
|
|
return SEC_E_INCOMPLETE_MESSAGE;
|
|
|
|
buf_len += size;
|
|
continue;
|
|
|
|
default:
|
|
WARN( "failed: %#lx\n", res );
|
|
return res;
|
|
}
|
|
} while (res != SEC_E_OK);
|
|
|
|
for(i = 0; i < ARRAY_SIZE(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 = malloc(bufs[i].cbBuffer - size);
|
|
if(!conn->peek_msg)
|
|
return ERROR_OUTOFMEMORY;
|
|
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 < ARRAY_SIZE(bufs); i++) {
|
|
if(bufs[i].BufferType == SECBUFFER_EXTRA) {
|
|
conn->extra_buf = malloc(bufs[i].cbBuffer);
|
|
if(!conn->extra_buf)
|
|
return ERROR_OUTOFMEMORY;
|
|
|
|
conn->extra_len = bufs[i].cbBuffer;
|
|
memcpy(conn->extra_buf, bufs[i].pvBuffer, conn->extra_len);
|
|
}
|
|
}
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
DWORD netconn_recv( struct netconn *conn, void *buf, size_t len, int flags, int *recvd )
|
|
{
|
|
*recvd = 0;
|
|
if (!len) return ERROR_SUCCESS;
|
|
|
|
if (conn->secure)
|
|
{
|
|
SIZE_T size;
|
|
DWORD res;
|
|
BOOL eof;
|
|
|
|
if (conn->peek_msg)
|
|
{
|
|
*recvd = min( len, conn->peek_len );
|
|
memcpy( buf, conn->peek_msg, *recvd );
|
|
conn->peek_len -= *recvd;
|
|
conn->peek_msg += *recvd;
|
|
|
|
if (conn->peek_len == 0)
|
|
{
|
|
free( conn->peek_msg_mem );
|
|
conn->peek_msg_mem = NULL;
|
|
conn->peek_msg = NULL;
|
|
}
|
|
/* check if we have enough data from the peek buffer */
|
|
if (!(flags & MSG_WAITALL) || *recvd == len) return ERROR_SUCCESS;
|
|
}
|
|
size = *recvd;
|
|
|
|
do
|
|
{
|
|
SIZE_T cread = 0;
|
|
if ((res = read_ssl_chunk( conn, (BYTE *)buf + size, len - size, &cread, &eof )))
|
|
{
|
|
WARN( "read_ssl_chunk failed: %lu\n", res );
|
|
if (!size) return res;
|
|
break;
|
|
}
|
|
if (eof)
|
|
{
|
|
TRACE("EOF\n");
|
|
break;
|
|
}
|
|
size += cread;
|
|
|
|
} while (!size || ((flags & MSG_WAITALL) && size < len));
|
|
|
|
TRACE( "received %Iu bytes\n", size );
|
|
*recvd = size;
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
if ((*recvd = sock_recv( conn->socket, buf, len, flags )) < 0) return WSAGetLastError();
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
void netconn_cancel_io( struct netconn *conn )
|
|
{
|
|
SOCKET socket = InterlockedExchange( (LONG *)&conn->socket, -1 );
|
|
|
|
closesocket( socket );
|
|
}
|
|
|
|
ULONG netconn_query_data_available( struct netconn *conn )
|
|
{
|
|
return conn->secure ? conn->peek_len : 0;
|
|
}
|
|
|
|
DWORD netconn_set_timeout( struct netconn *netconn, BOOL send, int value )
|
|
{
|
|
int opt = send ? SO_SNDTIMEO : SO_RCVTIMEO;
|
|
if (setsockopt( netconn->socket, SOL_SOCKET, opt, (void *)&value, sizeof(value) ) == -1)
|
|
{
|
|
DWORD err = WSAGetLastError();
|
|
WARN( "setsockopt failed (%lu)\n", err );
|
|
return err;
|
|
}
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
BOOL netconn_is_alive( struct netconn *netconn )
|
|
{
|
|
SIZE_T size;
|
|
int len;
|
|
char b;
|
|
DWORD err;
|
|
BOOL eof;
|
|
|
|
set_blocking( netconn, FALSE );
|
|
if (netconn->secure)
|
|
{
|
|
while (!netconn->peek_msg && !(err = read_ssl_chunk( netconn, NULL, 0, &size, &eof )) && !eof)
|
|
;
|
|
|
|
TRACE( "checking secure connection, err %lu\n", err );
|
|
|
|
if (netconn->peek_msg || err == WSAEWOULDBLOCK)
|
|
{
|
|
set_blocking( netconn, TRUE );
|
|
return TRUE;
|
|
}
|
|
if (err != SEC_E_OK && err != SEC_E_INCOMPLETE_MESSAGE)
|
|
{
|
|
set_blocking( netconn, TRUE );
|
|
return FALSE;
|
|
}
|
|
}
|
|
len = sock_recv( netconn->socket, &b, 1, MSG_PEEK );
|
|
err = WSAGetLastError();
|
|
set_blocking( netconn, TRUE );
|
|
|
|
return len == 1 || (len == -1 && err == WSAEWOULDBLOCK);
|
|
}
|
|
|
|
static DWORD resolve_hostname( const WCHAR *name, INTERNET_PORT port, struct sockaddr_storage *sa )
|
|
{
|
|
ADDRINFOW *res, hints;
|
|
int ret;
|
|
|
|
memset( &hints, 0, sizeof(hints) );
|
|
/* Prefer IPv4 to IPv6 addresses, since some web servers do not listen on
|
|
* their IPv6 addresses even though they have IPv6 addresses in the DNS.
|
|
*/
|
|
hints.ai_family = AF_INET;
|
|
|
|
ret = GetAddrInfoW( name, NULL, &hints, &res );
|
|
if (ret != 0)
|
|
{
|
|
TRACE("failed to get IPv4 address of %s, retrying with IPv6\n", debugstr_w(name));
|
|
hints.ai_family = AF_INET6;
|
|
ret = GetAddrInfoW( name, NULL, &hints, &res );
|
|
if (ret != 0)
|
|
{
|
|
TRACE("failed to get address of %s\n", debugstr_w(name));
|
|
return ERROR_WINHTTP_NAME_NOT_RESOLVED;
|
|
}
|
|
}
|
|
memcpy( sa, res->ai_addr, res->ai_addrlen );
|
|
switch (res->ai_family)
|
|
{
|
|
case AF_INET:
|
|
((struct sockaddr_in *)sa)->sin_port = htons( port );
|
|
break;
|
|
case AF_INET6:
|
|
((struct sockaddr_in6 *)sa)->sin6_port = htons( port );
|
|
break;
|
|
}
|
|
|
|
FreeAddrInfoW( res );
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
struct async_resolve
|
|
{
|
|
LONG ref;
|
|
WCHAR *hostname;
|
|
INTERNET_PORT port;
|
|
struct sockaddr_storage addr;
|
|
DWORD result;
|
|
HANDLE done;
|
|
};
|
|
|
|
static struct async_resolve *create_async_resolve( const WCHAR *hostname, INTERNET_PORT port )
|
|
{
|
|
struct async_resolve *ret;
|
|
|
|
if (!(ret = malloc(sizeof(*ret))))
|
|
{
|
|
ERR( "No memory.\n" );
|
|
return NULL;
|
|
}
|
|
ret->ref = 1;
|
|
ret->hostname = wcsdup( hostname );
|
|
ret->port = port;
|
|
if (!(ret->done = CreateEventW( NULL, FALSE, FALSE, NULL )))
|
|
{
|
|
free( ret->hostname );
|
|
free( ret );
|
|
return NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void async_resolve_release( struct async_resolve *async )
|
|
{
|
|
if (InterlockedDecrement( &async->ref )) return;
|
|
|
|
free( async->hostname );
|
|
CloseHandle( async->done );
|
|
free( async );
|
|
}
|
|
|
|
static void CALLBACK resolve_proc( TP_CALLBACK_INSTANCE *instance, void *ctx )
|
|
{
|
|
struct async_resolve *async = ctx;
|
|
|
|
async->result = resolve_hostname( async->hostname, async->port, &async->addr );
|
|
SetEvent( async->done );
|
|
async_resolve_release( async );
|
|
}
|
|
|
|
DWORD netconn_resolve( WCHAR *hostname, INTERNET_PORT port, struct sockaddr_storage *addr, int timeout )
|
|
{
|
|
DWORD ret;
|
|
|
|
if (!timeout) ret = resolve_hostname( hostname, port, addr );
|
|
else
|
|
{
|
|
struct async_resolve *async;
|
|
|
|
if (!(async = create_async_resolve( hostname, port )))
|
|
return ERROR_OUTOFMEMORY;
|
|
|
|
InterlockedIncrement( &async->ref );
|
|
if (!TrySubmitThreadpoolCallback( resolve_proc, async, NULL ))
|
|
{
|
|
InterlockedDecrement( &async->ref );
|
|
async_resolve_release( async );
|
|
return GetLastError();
|
|
}
|
|
if (WaitForSingleObject( async->done, timeout ) != WAIT_OBJECT_0) ret = ERROR_WINHTTP_TIMEOUT;
|
|
else
|
|
{
|
|
*addr = async->addr;
|
|
ret = async->result;
|
|
}
|
|
async_resolve_release( async );
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
const void *netconn_get_certificate( struct netconn *conn )
|
|
{
|
|
const CERT_CONTEXT *ret;
|
|
SECURITY_STATUS res;
|
|
|
|
if (!conn->secure) return NULL;
|
|
res = QueryContextAttributesW(&conn->ssl_ctx, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (void*)&ret);
|
|
return res == SEC_E_OK ? ret : NULL;
|
|
}
|
|
|
|
int netconn_get_cipher_strength( struct netconn *conn )
|
|
{
|
|
SecPkgContext_ConnectionInfo conn_info;
|
|
SECURITY_STATUS res;
|
|
|
|
if (!conn->secure) return 0;
|
|
res = QueryContextAttributesW(&conn->ssl_ctx, SECPKG_ATTR_CONNECTION_INFO, (void*)&conn_info);
|
|
if(res != SEC_E_OK)
|
|
WARN( "QueryContextAttributesW failed: %#lx\n", res );
|
|
return res == SEC_E_OK ? conn_info.dwCipherStrength : 0;
|
|
}
|