mirror of
https://gitlab.freedesktop.org/dbus/dbus.git
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4412 lines
118 KiB
C
4412 lines
118 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* dbus-sysdeps.c Wrappers around system/libc features (internal to D-BUS implementation)
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*
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* Copyright (C) 2002, 2003 Red Hat, Inc.
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* Copyright (C) 2003 CodeFactory AB
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* Copyright (C) 2005 Novell, Inc.
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* Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
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* Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
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* Copyright (C) 2006-2021 Ralf Habacker <ralf.habacker@freenet.de>
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*
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* Licensed under the Academic Free License version 2.1
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <config.h>
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#define STRSAFE_NO_DEPRECATE
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#include "dbus-internals.h"
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#include "dbus-sha.h"
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#include "dbus-sysdeps.h"
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#include "dbus-threads.h"
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#include "dbus-protocol.h"
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#include "dbus-string.h"
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#include "dbus-sysdeps.h"
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#include "dbus-sysdeps-win.h"
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#include "dbus-protocol.h"
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#include "dbus-hash.h"
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#include "dbus-sockets-win.h"
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#include "dbus-list.h"
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#include "dbus-nonce.h"
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#include "dbus-credentials.h"
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#include <windows.h>
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#include <wincrypt.h>
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#include <iphlpapi.h>
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/* Declarations missing in mingw's and windows sdk 7.0 headers */
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extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
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extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#ifndef DBUS_WINCE
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#include <mbstring.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#endif
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#ifdef HAVE_WS2TCPIP_H
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/* getaddrinfo for Windows CE (and Windows). */
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#include <ws2tcpip.h>
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#endif
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#ifndef PROCESS_QUERY_LIMITED_INFORMATION
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/* MinGW32 < 4 does not define this value in its headers */
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#define PROCESS_QUERY_LIMITED_INFORMATION (0x1000)
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#endif
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typedef int socklen_t;
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/* uncomment to enable windows event based poll implementation */
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//#define USE_CHRIS_IMPL
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void
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_dbus_win_set_errno (int err)
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{
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#ifdef DBUS_WINCE
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SetLastError (err);
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#else
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errno = err;
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#endif
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}
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static BOOL is_winxp_sp3_or_lower (void);
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/*
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* _MIB_TCPROW_EX and friends are not available in system headers
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* and are mapped to attribute identical ...OWNER_PID typedefs.
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*/
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typedef MIB_TCPROW_OWNER_PID _MIB_TCPROW_EX;
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typedef MIB_TCPTABLE_OWNER_PID MIB_TCPTABLE_EX;
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typedef PMIB_TCPTABLE_OWNER_PID PMIB_TCPTABLE_EX;
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typedef DWORD (WINAPI *ProcAllocateAndGetTcpExtTableFromStack)(PMIB_TCPTABLE_EX*,BOOL,HANDLE,DWORD,DWORD);
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/* Not protected by a lock, but if we miss a write, all that
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* happens is that the lazy initialization will happen in two threads
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* concurrently - it results in the same value either way so that's OK */
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static ProcAllocateAndGetTcpExtTableFromStack lpfnAllocateAndGetTcpExTableFromStack = NULL;
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/**
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* AllocateAndGetTcpExTableFromStack() is undocumented and not exported,
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* but is the only way to do this in older XP versions.
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* @return true if the procedures could be loaded
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*/
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static BOOL
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load_ex_ip_helper_procedures(void)
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{
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HMODULE hModule = LoadLibrary ("iphlpapi.dll");
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if (hModule == NULL)
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{
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_dbus_verbose ("could not load iphlpapi.dll\n");
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return FALSE;
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}
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lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack) (void (*)(void))GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
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if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
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{
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_dbus_verbose ("could not find function AllocateAndGetTcpExTableFromStack in iphlpapi.dll\n");
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return FALSE;
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}
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return TRUE;
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}
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/**
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* get pid from localhost tcp connection using peer_port
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* This function is available on WinXP >= SP3
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* @param peer_port peers tcp port
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* @return process id or 0 if connection has not been found
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*/
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static dbus_pid_t
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get_pid_from_extended_tcp_table(int peer_port)
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{
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dbus_pid_t result;
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DWORD errorCode, size = 0, i;
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MIB_TCPTABLE_OWNER_PID *tcp_table;
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if ((errorCode =
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GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
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{
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tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
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if (tcp_table == NULL)
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{
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_dbus_verbose ("Error allocating memory\n");
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return 0;
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}
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}
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else
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{
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_dbus_win_warn_win_error ("unexpected error returned from GetExtendedTcpTable", errorCode);
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return 0;
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}
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if ((errorCode = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
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{
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_dbus_verbose ("Error fetching tcp table %d\n", (int)errorCode);
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dbus_free (tcp_table);
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return 0;
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}
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result = 0;
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for (i = 0; i < tcp_table->dwNumEntries; i++)
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{
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MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
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int local_address = ntohl (p->dwLocalAddr);
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int local_port = ntohs (p->dwLocalPort);
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if (p->dwState == MIB_TCP_STATE_ESTAB
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&& local_address == INADDR_LOOPBACK && local_port == peer_port)
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result = p->dwOwningPid;
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}
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dbus_free (tcp_table);
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_dbus_verbose ("got pid %lu\n", result);
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return result;
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}
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/**
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* get pid from localhost tcp connection using peer_port
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* This function is available on all WinXP versions, but
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* not in wine (at least version <= 1.6.0)
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* @param peer_port peers tcp port
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* @return process id or 0 if connection has not been found
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*/
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static dbus_pid_t
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get_pid_from_tcp_ex_table(int peer_port)
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{
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dbus_pid_t result;
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DWORD errorCode, i;
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PMIB_TCPTABLE_EX tcp_table = NULL;
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if (!load_ex_ip_helper_procedures ())
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{
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_dbus_verbose
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("Error not been able to load iphelper procedures\n");
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return 0;
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}
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errorCode = lpfnAllocateAndGetTcpExTableFromStack (&tcp_table, TRUE, GetProcessHeap(), 0, 2);
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if (errorCode != NO_ERROR)
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{
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_dbus_verbose
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("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
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return 0;
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}
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result = 0;
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for (i = 0; i < tcp_table->dwNumEntries; i++)
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{
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_MIB_TCPROW_EX *p = &tcp_table->table[i];
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int local_port = ntohs (p->dwLocalPort);
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int local_address = ntohl (p->dwLocalAddr);
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if (local_address == INADDR_LOOPBACK && local_port == peer_port)
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{
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result = p->dwOwningPid;
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break;
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}
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}
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HeapFree (GetProcessHeap(), 0, tcp_table);
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_dbus_verbose ("got pid %lu\n", result);
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return result;
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}
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/**
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* @brief return peer process id from tcp handle for localhost connections
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* @param handle tcp socket descriptor
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* @return process id or 0 in case the process id could not be fetched
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*/
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static dbus_pid_t
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_dbus_get_peer_pid_from_tcp_handle (int handle)
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{
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struct sockaddr_storage addr;
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socklen_t len = sizeof (addr);
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int peer_port;
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dbus_pid_t result;
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dbus_bool_t is_localhost = FALSE;
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getpeername (handle, (struct sockaddr *) &addr, &len);
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if (addr.ss_family == AF_INET)
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{
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struct sockaddr_in *s = (struct sockaddr_in *) &addr;
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peer_port = ntohs (s->sin_port);
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is_localhost = (ntohl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
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}
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else if (addr.ss_family == AF_INET6)
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{
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_dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
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return 0;
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/*
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struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
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peer_port = ntohs (s->sin6_port);
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is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
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_dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
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*/
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}
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else
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{
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_dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
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return 0;
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}
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if (!is_localhost)
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{
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_dbus_verbose ("could not fetch process id from remote process\n");
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return 0;
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}
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if (peer_port == 0)
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{
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_dbus_verbose
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("Error not been able to fetch tcp peer port from connection\n");
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return 0;
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}
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_dbus_verbose ("trying to get peer's pid\n");
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result = get_pid_from_extended_tcp_table (peer_port);
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if (result > 0)
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return result;
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result = get_pid_from_tcp_ex_table (peer_port);
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return result;
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}
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/* Convert GetLastError() to a dbus error. */
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const char*
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_dbus_win_error_from_last_error (void)
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{
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switch (GetLastError())
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{
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case 0:
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return DBUS_ERROR_FAILED;
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case ERROR_NO_MORE_FILES:
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case ERROR_TOO_MANY_OPEN_FILES:
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return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
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case ERROR_ACCESS_DENIED:
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case ERROR_CANNOT_MAKE:
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return DBUS_ERROR_ACCESS_DENIED;
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case ERROR_NOT_ENOUGH_MEMORY:
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return DBUS_ERROR_NO_MEMORY;
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case ERROR_FILE_EXISTS:
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return DBUS_ERROR_FILE_EXISTS;
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case ERROR_FILE_NOT_FOUND:
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case ERROR_PATH_NOT_FOUND:
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return DBUS_ERROR_FILE_NOT_FOUND;
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default:
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return DBUS_ERROR_FAILED;
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}
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}
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char*
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_dbus_win_error_string (int error_number)
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{
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char *msg;
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FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_IGNORE_INSERTS |
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FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, error_number, 0,
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(LPSTR) &msg, 0, NULL);
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if (msg[strlen (msg) - 1] == '\n')
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msg[strlen (msg) - 1] = '\0';
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if (msg[strlen (msg) - 1] == '\r')
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msg[strlen (msg) - 1] = '\0';
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return msg;
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}
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void
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_dbus_win_free_error_string (char *string)
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{
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LocalFree (string);
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}
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/**
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* Socket interface
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*
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*/
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/**
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* Thin wrapper around the read() system call that appends
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* the data it reads to the DBusString buffer. It appends
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* up to the given count, and returns the same value
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* and same errno as read(). The only exception is that
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* _dbus_read_socket() handles EINTR for you.
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* _dbus_read_socket() can return ENOMEM, even though
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* regular UNIX read doesn't.
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*
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* @param fd the file descriptor to read from
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* @param buffer the buffer to append data to
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* @param count the amount of data to read
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* @returns the number of bytes read or -1
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*/
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int
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_dbus_read_socket (DBusSocket fd,
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DBusString *buffer,
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int count)
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{
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int bytes_read;
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int start;
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char *data;
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_dbus_assert (count >= 0);
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start = _dbus_string_get_length (buffer);
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if (!_dbus_string_lengthen (buffer, count))
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{
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_dbus_win_set_errno (ENOMEM);
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return -1;
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}
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data = _dbus_string_get_data_len (buffer, start, count);
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again:
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_dbus_verbose ("recv: count=%d fd=%Iu\n", count, fd.sock);
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bytes_read = recv (fd.sock, data, count, 0);
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if (bytes_read == SOCKET_ERROR)
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{
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DBUS_SOCKET_SET_ERRNO();
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_dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
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bytes_read = -1;
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}
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else
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_dbus_verbose ("recv: = %d\n", bytes_read);
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|
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if (bytes_read < 0)
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{
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if (errno == EINTR)
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goto again;
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else
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{
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/* put length back (note that this doesn't actually realloc anything) */
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_dbus_string_set_length (buffer, start);
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return -1;
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}
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}
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else
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{
|
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/* put length back (doesn't actually realloc) */
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_dbus_string_set_length (buffer, start + bytes_read);
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|
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#if 0
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if (bytes_read > 0)
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_dbus_verbose_bytes_of_string (buffer, start, bytes_read);
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#endif
|
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|
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return bytes_read;
|
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}
|
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}
|
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|
|
/**
|
|
* Thin wrapper around the write() system call that writes a part of a
|
|
* DBusString and handles EINTR for you.
|
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*
|
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* @param fd the file descriptor to write
|
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* @param buffer the buffer to write data from
|
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* @param start the first byte in the buffer to write
|
|
* @param len the number of bytes to try to write
|
|
* @returns the number of bytes written or -1 on error
|
|
*/
|
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int
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_dbus_write_socket (DBusSocket fd,
|
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const DBusString *buffer,
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int start,
|
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int len)
|
|
{
|
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const char *data;
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int bytes_written;
|
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|
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data = _dbus_string_get_const_data_len (buffer, start, len);
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|
again:
|
|
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_dbus_verbose ("send: len=%d fd=%Iu\n", len, fd.sock);
|
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bytes_written = send (fd.sock, data, len, 0);
|
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|
|
if (bytes_written == SOCKET_ERROR)
|
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{
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DBUS_SOCKET_SET_ERRNO();
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_dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
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bytes_written = -1;
|
|
}
|
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else
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_dbus_verbose ("send: = %d\n", bytes_written);
|
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|
|
if (bytes_written < 0 && errno == EINTR)
|
|
goto again;
|
|
|
|
#if 0
|
|
if (bytes_written > 0)
|
|
_dbus_verbose_bytes_of_string (buffer, start, bytes_written);
|
|
#endif
|
|
|
|
return bytes_written;
|
|
}
|
|
|
|
|
|
/**
|
|
* Closes a file descriptor.
|
|
*
|
|
* @param fd the file descriptor
|
|
* @param error error object
|
|
* @returns #FALSE if error set
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_close_socket (DBusSocket fd,
|
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DBusError *error)
|
|
{
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
again:
|
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if (closesocket (fd.sock) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
|
|
if (errno == EINTR)
|
|
goto again;
|
|
|
|
dbus_set_error (error, _dbus_error_from_errno (errno),
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|
"Could not close socket: socket=%Iu, , %s",
|
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fd.sock, _dbus_strerror_from_errno ());
|
|
return FALSE;
|
|
}
|
|
_dbus_verbose ("socket=%Iu, \n", fd.sock);
|
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|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Sets the file descriptor to be close
|
|
* on exec. Should be called for all file
|
|
* descriptors in D-Bus code.
|
|
*
|
|
* @param handle the Windows HANDLE (a SOCKET is also OK)
|
|
*/
|
|
static void
|
|
_dbus_win_handle_set_close_on_exec (HANDLE handle)
|
|
{
|
|
if ( !SetHandleInformation( (HANDLE) handle,
|
|
HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
|
|
0 /*disable both flags*/ ) )
|
|
{
|
|
_dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets a file descriptor to be nonblocking.
|
|
*
|
|
* @param handle the file descriptor.
|
|
* @param error address of error location.
|
|
* @returns #TRUE on success.
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_set_socket_nonblocking (DBusSocket handle,
|
|
DBusError *error)
|
|
{
|
|
u_long one = 1;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
if (ioctlsocket (handle.sock, FIONBIO, &one) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
dbus_set_error (error, _dbus_error_from_errno (errno),
|
|
"Failed to set socket %Iu to nonblocking: %s",
|
|
handle.sock, _dbus_strerror_from_errno ());
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**
|
|
* Like _dbus_write() but will use writev() if possible
|
|
* to write both buffers in sequence. The return value
|
|
* is the number of bytes written in the first buffer,
|
|
* plus the number written in the second. If the first
|
|
* buffer is written successfully and an error occurs
|
|
* writing the second, the number of bytes in the first
|
|
* is returned (i.e. the error is ignored), on systems that
|
|
* don't have writev. Handles EINTR for you.
|
|
* The second buffer may be #NULL.
|
|
*
|
|
* @param fd the file descriptor
|
|
* @param buffer1 first buffer
|
|
* @param start1 first byte to write in first buffer
|
|
* @param len1 number of bytes to write from first buffer
|
|
* @param buffer2 second buffer, or #NULL
|
|
* @param start2 first byte to write in second buffer
|
|
* @param len2 number of bytes to write in second buffer
|
|
* @returns total bytes written from both buffers, or -1 on error
|
|
*/
|
|
int
|
|
_dbus_write_socket_two (DBusSocket fd,
|
|
const DBusString *buffer1,
|
|
int start1,
|
|
int len1,
|
|
const DBusString *buffer2,
|
|
int start2,
|
|
int len2)
|
|
{
|
|
WSABUF vectors[2];
|
|
const char *data1;
|
|
const char *data2;
|
|
int rc;
|
|
DWORD bytes_written;
|
|
|
|
_dbus_assert (buffer1 != NULL);
|
|
_dbus_assert (start1 >= 0);
|
|
_dbus_assert (start2 >= 0);
|
|
_dbus_assert (len1 >= 0);
|
|
_dbus_assert (len2 >= 0);
|
|
|
|
|
|
data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
|
|
|
|
if (buffer2 != NULL)
|
|
data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
|
|
else
|
|
{
|
|
data2 = NULL;
|
|
start2 = 0;
|
|
len2 = 0;
|
|
}
|
|
|
|
vectors[0].buf = (char*) data1;
|
|
vectors[0].len = len1;
|
|
vectors[1].buf = (char*) data2;
|
|
vectors[1].len = len2;
|
|
|
|
again:
|
|
|
|
_dbus_verbose ("WSASend: len1+2=%d+%d fd=%Iu\n", len1, len2, fd.sock);
|
|
rc = WSASend (fd.sock,
|
|
vectors,
|
|
data2 ? 2 : 1,
|
|
&bytes_written,
|
|
0,
|
|
NULL,
|
|
NULL);
|
|
|
|
if (rc == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
_dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
|
|
bytes_written = (DWORD) -1;
|
|
}
|
|
else
|
|
_dbus_verbose ("WSASend: = %ld\n", bytes_written);
|
|
|
|
if (bytes_written == (DWORD) -1 && errno == EINTR)
|
|
goto again;
|
|
|
|
return bytes_written;
|
|
}
|
|
|
|
#if 0
|
|
|
|
/**
|
|
* Opens the client side of a Windows named pipe. The connection D-BUS
|
|
* file descriptor index is returned. It is set up as nonblocking.
|
|
*
|
|
* @param path the path to named pipe socket
|
|
* @param error return location for error code
|
|
* @returns connection D-BUS file descriptor or -1 on error
|
|
*/
|
|
int
|
|
_dbus_connect_named_pipe (const char *path,
|
|
DBusError *error)
|
|
{
|
|
_dbus_assert_not_reached ("not implemented");
|
|
}
|
|
|
|
#endif
|
|
|
|
/**
|
|
* @returns #FALSE if no memory
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_win_startup_winsock (void)
|
|
{
|
|
/* Straight from MSDN, deuglified */
|
|
|
|
/* Protected by _DBUS_LOCK_sysdeps */
|
|
static dbus_bool_t beenhere = FALSE;
|
|
|
|
WORD wVersionRequested;
|
|
WSADATA wsaData;
|
|
int err;
|
|
|
|
if (!_DBUS_LOCK (sysdeps))
|
|
return FALSE;
|
|
|
|
if (beenhere)
|
|
goto out;
|
|
|
|
wVersionRequested = MAKEWORD (2, 0);
|
|
|
|
err = WSAStartup (wVersionRequested, &wsaData);
|
|
if (err != 0)
|
|
{
|
|
_dbus_assert_not_reached ("Could not initialize WinSock");
|
|
_dbus_abort ();
|
|
}
|
|
|
|
/* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
|
|
* supports versions greater than 2.0 in addition to 2.0, it will
|
|
* still return 2.0 in wVersion since that is the version we
|
|
* requested.
|
|
*/
|
|
if (LOBYTE (wsaData.wVersion) != 2 ||
|
|
HIBYTE (wsaData.wVersion) != 0)
|
|
{
|
|
_dbus_assert_not_reached ("No usable WinSock found");
|
|
_dbus_abort ();
|
|
}
|
|
|
|
beenhere = TRUE;
|
|
|
|
out:
|
|
_DBUS_UNLOCK (sysdeps);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
UTF / string code
|
|
|
|
************************************************************************/
|
|
|
|
/**
|
|
* Measure the message length without terminating nul
|
|
*/
|
|
int _dbus_printf_string_upper_bound (const char *format,
|
|
va_list args)
|
|
{
|
|
/* MSVCRT's vsnprintf semantics are a bit different */
|
|
char buf[1024];
|
|
int bufsize;
|
|
int len;
|
|
va_list args_copy;
|
|
|
|
bufsize = sizeof (buf);
|
|
DBUS_VA_COPY (args_copy, args);
|
|
len = _vsnprintf (buf, bufsize - 1, format, args_copy);
|
|
va_end (args_copy);
|
|
|
|
while (len == -1) /* try again */
|
|
{
|
|
char *p;
|
|
|
|
bufsize *= 2;
|
|
|
|
p = malloc (bufsize);
|
|
|
|
if (p == NULL)
|
|
return -1;
|
|
|
|
DBUS_VA_COPY (args_copy, args);
|
|
len = _vsnprintf (p, bufsize - 1, format, args_copy);
|
|
va_end (args_copy);
|
|
free (p);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns the UTF-16 form of a UTF-8 string. The result should be
|
|
* freed with dbus_free() when no longer needed.
|
|
*
|
|
* @param str the UTF-8 string
|
|
* @param error return location for error code
|
|
*/
|
|
wchar_t *
|
|
_dbus_win_utf8_to_utf16 (const char *str,
|
|
DBusError *error)
|
|
{
|
|
DBusString s;
|
|
int n;
|
|
wchar_t *retval;
|
|
|
|
_dbus_string_init_const (&s, str);
|
|
|
|
if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
|
|
{
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
|
|
return NULL;
|
|
}
|
|
|
|
n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
|
|
|
|
if (n == 0)
|
|
{
|
|
_dbus_win_set_error_from_win_error (error, GetLastError ());
|
|
return NULL;
|
|
}
|
|
|
|
retval = dbus_new (wchar_t, n);
|
|
|
|
if (!retval)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return NULL;
|
|
}
|
|
|
|
if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
|
|
{
|
|
dbus_free (retval);
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
|
|
return NULL;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Returns the UTF-8 form of a UTF-16 string. The result should be
|
|
* freed with dbus_free() when no longer needed.
|
|
*
|
|
* @param str the UTF-16 string
|
|
* @param error return location for error code
|
|
*/
|
|
char *
|
|
_dbus_win_utf16_to_utf8 (const wchar_t *str,
|
|
DBusError *error)
|
|
{
|
|
int n;
|
|
char *retval;
|
|
|
|
n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
|
|
|
|
if (n == 0)
|
|
{
|
|
_dbus_win_set_error_from_win_error (error, GetLastError ());
|
|
return NULL;
|
|
}
|
|
|
|
retval = dbus_malloc (n);
|
|
|
|
if (!retval)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return NULL;
|
|
}
|
|
|
|
if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
|
|
{
|
|
dbus_free (retval);
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
|
|
return NULL;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
|
|
************************************************************************/
|
|
|
|
dbus_bool_t
|
|
_dbus_win_account_to_sid (const wchar_t *waccount,
|
|
void **ppsid,
|
|
DBusError *error)
|
|
{
|
|
dbus_bool_t retval = FALSE;
|
|
DWORD sid_length, wdomain_length;
|
|
SID_NAME_USE use;
|
|
wchar_t *wdomain;
|
|
|
|
*ppsid = NULL;
|
|
|
|
sid_length = 0;
|
|
wdomain_length = 0;
|
|
if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
|
|
NULL, &wdomain_length, &use) &&
|
|
GetLastError () != ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
_dbus_win_set_error_from_win_error (error, GetLastError ());
|
|
return FALSE;
|
|
}
|
|
|
|
*ppsid = dbus_malloc (sid_length);
|
|
if (!*ppsid)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return FALSE;
|
|
}
|
|
|
|
wdomain = dbus_new (wchar_t, wdomain_length);
|
|
if (!wdomain)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
goto out1;
|
|
}
|
|
|
|
if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
|
|
wdomain, &wdomain_length, &use))
|
|
{
|
|
_dbus_win_set_error_from_win_error (error, GetLastError ());
|
|
goto out2;
|
|
}
|
|
|
|
if (!IsValidSid ((PSID) *ppsid))
|
|
{
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
|
|
goto out2;
|
|
}
|
|
|
|
retval = TRUE;
|
|
|
|
out2:
|
|
dbus_free (wdomain);
|
|
out1:
|
|
if (!retval)
|
|
{
|
|
dbus_free (*ppsid);
|
|
*ppsid = NULL;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/** @} end of sysdeps-win */
|
|
|
|
|
|
/**
|
|
* The only reason this is separate from _dbus_getpid() is to allow it
|
|
* on Windows for logging but not for other purposes.
|
|
*
|
|
* @returns process ID to put in log messages
|
|
*/
|
|
unsigned long
|
|
_dbus_pid_for_log (void)
|
|
{
|
|
return _dbus_getpid ();
|
|
}
|
|
|
|
#ifndef DBUS_WINCE
|
|
|
|
static BOOL
|
|
is_winxp_sp3_or_lower (void)
|
|
{
|
|
OSVERSIONINFOEX osvi;
|
|
DWORDLONG dwlConditionMask = 0;
|
|
int op=VER_LESS_EQUAL;
|
|
|
|
// Initialize the OSVERSIONINFOEX structure.
|
|
|
|
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
|
|
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
|
|
osvi.dwMajorVersion = 5;
|
|
osvi.dwMinorVersion = 1;
|
|
osvi.wServicePackMajor = 3;
|
|
osvi.wServicePackMinor = 0;
|
|
|
|
// Initialize the condition mask.
|
|
|
|
VER_SET_CONDITION (dwlConditionMask, VER_MAJORVERSION, op);
|
|
VER_SET_CONDITION (dwlConditionMask, VER_MINORVERSION, op);
|
|
VER_SET_CONDITION (dwlConditionMask, VER_SERVICEPACKMAJOR, op);
|
|
VER_SET_CONDITION (dwlConditionMask, VER_SERVICEPACKMINOR, op);
|
|
|
|
// Perform the test.
|
|
|
|
return VerifyVersionInfo(
|
|
&osvi,
|
|
VER_MAJORVERSION | VER_MINORVERSION |
|
|
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
|
|
dwlConditionMask);
|
|
}
|
|
|
|
/** Gets our SID
|
|
* @param sid points to sid buffer, need to be freed with LocalFree()
|
|
* @param process_id the process id for which the sid should be returned (use 0 for current process)
|
|
* @returns process sid
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_getsid(char **sid, dbus_pid_t process_id)
|
|
{
|
|
HANDLE process_token = INVALID_HANDLE_VALUE;
|
|
TOKEN_USER *token_user = NULL;
|
|
DWORD n;
|
|
PSID psid;
|
|
int retval = FALSE;
|
|
|
|
HANDLE process_handle;
|
|
if (process_id == 0)
|
|
process_handle = GetCurrentProcess();
|
|
else if (is_winxp_sp3_or_lower())
|
|
process_handle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, process_id);
|
|
else
|
|
process_handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
|
|
|
|
if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
|
|
{
|
|
_dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
|
|
goto failed;
|
|
}
|
|
if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
|
|
&& GetLastError () != ERROR_INSUFFICIENT_BUFFER)
|
|
|| (token_user = alloca (n)) == NULL
|
|
|| !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
|
|
{
|
|
_dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
|
|
goto failed;
|
|
}
|
|
psid = token_user->User.Sid;
|
|
if (!IsValidSid (psid))
|
|
{
|
|
_dbus_verbose("%s invalid sid\n",__FUNCTION__);
|
|
goto failed;
|
|
}
|
|
if (!ConvertSidToStringSidA (psid, sid))
|
|
{
|
|
_dbus_verbose("%s invalid sid\n",__FUNCTION__);
|
|
goto failed;
|
|
}
|
|
//okay:
|
|
retval = TRUE;
|
|
|
|
failed:
|
|
CloseHandle (process_handle);
|
|
if (process_token != INVALID_HANDLE_VALUE)
|
|
CloseHandle (process_token);
|
|
|
|
_dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
|
|
return retval;
|
|
}
|
|
#endif
|
|
|
|
/************************************************************************
|
|
|
|
pipes
|
|
|
|
************************************************************************/
|
|
|
|
/**
|
|
* Creates pair of connect sockets (as in socketpair()).
|
|
* Sets both ends of the pair nonblocking.
|
|
*
|
|
* Marks both file descriptors as close-on-exec
|
|
*
|
|
* @param fd1 return location for one end
|
|
* @param fd2 return location for the other end
|
|
* @param blocking #TRUE if pair should be blocking
|
|
* @param error error return
|
|
* @returns #FALSE on failure (if error is set)
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_socketpair (DBusSocket *fd1,
|
|
DBusSocket *fd2,
|
|
dbus_bool_t blocking,
|
|
DBusError *error)
|
|
{
|
|
SOCKET temp, socket1 = -1, socket2 = -1;
|
|
struct sockaddr_in saddr;
|
|
int len;
|
|
u_long arg;
|
|
|
|
if (!_dbus_win_startup_winsock ())
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return FALSE;
|
|
}
|
|
|
|
temp = socket (AF_INET, SOCK_STREAM, 0);
|
|
if (temp == INVALID_SOCKET)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out0;
|
|
}
|
|
|
|
_DBUS_ZERO (saddr);
|
|
saddr.sin_family = AF_INET;
|
|
saddr.sin_port = 0;
|
|
saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
|
|
|
|
if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out0;
|
|
}
|
|
|
|
if (listen (temp, 1) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out0;
|
|
}
|
|
|
|
len = sizeof (saddr);
|
|
if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out0;
|
|
}
|
|
|
|
socket1 = socket (AF_INET, SOCK_STREAM, 0);
|
|
if (socket1 == INVALID_SOCKET)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out0;
|
|
}
|
|
|
|
if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out1;
|
|
}
|
|
|
|
socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
|
|
if (socket2 == INVALID_SOCKET)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out1;
|
|
}
|
|
|
|
if (!blocking)
|
|
{
|
|
arg = 1;
|
|
if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out2;
|
|
}
|
|
|
|
arg = 1;
|
|
if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
goto out2;
|
|
}
|
|
}
|
|
|
|
fd1->sock = socket1;
|
|
fd2->sock = socket2;
|
|
|
|
_dbus_verbose ("full-duplex pipe %Iu:%Iu <-> %Iu:%Iu\n",
|
|
fd1->sock, socket1, fd2->sock, socket2);
|
|
|
|
closesocket (temp);
|
|
|
|
return TRUE;
|
|
|
|
out2:
|
|
closesocket (socket2);
|
|
out1:
|
|
closesocket (socket1);
|
|
out0:
|
|
closesocket (temp);
|
|
|
|
dbus_set_error (error, _dbus_error_from_errno (errno),
|
|
"Could not setup socket pair: %s",
|
|
_dbus_strerror_from_errno ());
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#ifdef DBUS_ENABLE_VERBOSE_MODE
|
|
static dbus_bool_t
|
|
_dbus_dump_fd_events (DBusPollFD *fds, int n_fds)
|
|
{
|
|
DBusString msg = _DBUS_STRING_INIT_INVALID;
|
|
dbus_bool_t result = FALSE;
|
|
int i;
|
|
|
|
if (!_dbus_string_init (&msg))
|
|
goto oom;
|
|
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
if (!_dbus_string_append (&msg, i > 0 ? "\n\t" : "\t"))
|
|
goto oom;
|
|
|
|
if ((fdp->events & _DBUS_POLLIN) &&
|
|
!_dbus_string_append_printf (&msg, "R:%Iu ", fdp->fd.sock))
|
|
goto oom;
|
|
|
|
if ((fdp->events & _DBUS_POLLOUT) &&
|
|
!_dbus_string_append_printf (&msg, "W:%Iu ", fdp->fd.sock))
|
|
goto oom;
|
|
|
|
if (!_dbus_string_append_printf (&msg, "E:%Iu", fdp->fd.sock))
|
|
goto oom;
|
|
}
|
|
|
|
_dbus_verbose ("%s\n", _dbus_string_get_const_data (&msg));
|
|
result = TRUE;
|
|
oom:
|
|
_dbus_string_free (&msg);
|
|
return result;
|
|
}
|
|
|
|
#ifdef USE_CHRIS_IMPL
|
|
static dbus_bool_t
|
|
_dbus_dump_fd_revents (DBusPollFD *fds, int n_fds)
|
|
{
|
|
DBusString msg = _DBUS_STRING_INIT_INVALID;
|
|
dbus_bool_t result = FALSE;
|
|
int i;
|
|
|
|
if (!_dbus_string_init (&msg))
|
|
goto oom;
|
|
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
if (!_dbus_string_append (&msg, i > 0 ? "\n\t" : "\t"))
|
|
goto oom;
|
|
|
|
if ((fdp->revents & _DBUS_POLLIN) &&
|
|
!_dbus_string_append_printf (&msg, "R:%Iu ", fdp->fd.sock))
|
|
goto oom;
|
|
|
|
if ((fdp->revents & _DBUS_POLLOUT) &&
|
|
!_dbus_string_append_printf (&msg, "W:%Iu ", fdp->fd.sock))
|
|
goto oom;
|
|
|
|
if ((fdp->revents & _DBUS_POLLERR) &&
|
|
!_dbus_string_append_printf (&msg, "E:%Iu", fdp->fd.sock))
|
|
goto oom;
|
|
}
|
|
|
|
_dbus_verbose ("%s\n", _dbus_string_get_const_data (&msg));
|
|
result = TRUE;
|
|
oom:
|
|
_dbus_string_free (&msg);
|
|
return result;
|
|
}
|
|
#else
|
|
static dbus_bool_t
|
|
_dbus_dump_fdset (DBusPollFD *fds, int n_fds, fd_set *read_set, fd_set *write_set, fd_set *err_set)
|
|
{
|
|
DBusString msg = _DBUS_STRING_INIT_INVALID;
|
|
dbus_bool_t result = FALSE;
|
|
int i;
|
|
|
|
if (!_dbus_string_init (&msg))
|
|
goto oom;
|
|
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
|
|
if (!_dbus_string_append (&msg, i > 0 ? "\n\t" : "\t"))
|
|
goto oom;
|
|
|
|
if (FD_ISSET (fdp->fd.sock, read_set) &&
|
|
!_dbus_string_append_printf (&msg, "R:%Iu ", fdp->fd.sock))
|
|
goto oom;
|
|
|
|
if (FD_ISSET (fdp->fd.sock, write_set) &&
|
|
!_dbus_string_append_printf (&msg, "W:%Iu ", fdp->fd.sock))
|
|
goto oom;
|
|
|
|
if (FD_ISSET (fdp->fd.sock, err_set) &&
|
|
!_dbus_string_append_printf (&msg, "E:%Iu", fdp->fd.sock))
|
|
goto oom;
|
|
}
|
|
_dbus_verbose ("%s\n", _dbus_string_get_const_data (&msg));
|
|
result = TRUE;
|
|
oom:
|
|
_dbus_string_free (&msg);
|
|
return result;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef USE_CHRIS_IMPL
|
|
/**
|
|
* Windows event based implementation for _dbus_poll().
|
|
*
|
|
* @param fds the file descriptors to poll
|
|
* @param n_fds number of descriptors in the array
|
|
* @param timeout_milliseconds timeout or -1 for infinite
|
|
* @returns numbers of fds with revents, or <0 on error
|
|
*/
|
|
static int
|
|
_dbus_poll_events (DBusPollFD *fds,
|
|
int n_fds,
|
|
int timeout_milliseconds)
|
|
{
|
|
int ret = 0;
|
|
int i;
|
|
DWORD ready;
|
|
|
|
#define DBUS_STACK_WSAEVENTS 256
|
|
WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
|
|
WSAEVENT *pEvents = NULL;
|
|
if (n_fds > DBUS_STACK_WSAEVENTS)
|
|
pEvents = calloc(sizeof(WSAEVENT), n_fds);
|
|
else
|
|
pEvents = eventsOnStack;
|
|
|
|
if (pEvents == NULL)
|
|
{
|
|
_dbus_win_set_errno (ENOMEM);
|
|
ret = -1;
|
|
goto oom;
|
|
}
|
|
|
|
#ifdef DBUS_ENABLE_VERBOSE_MODE
|
|
_dbus_verbose ("_dbus_poll: to=%d", timeout_milliseconds);
|
|
if (!_dbus_dump_fd_events (fds, n_fds))
|
|
{
|
|
_dbus_win_set_errno (ENOMEM);
|
|
ret = -1;
|
|
goto oom;
|
|
}
|
|
#endif
|
|
|
|
for (i = 0; i < n_fds; i++)
|
|
pEvents[i] = WSA_INVALID_EVENT;
|
|
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
WSAEVENT ev;
|
|
long lNetworkEvents = FD_OOB;
|
|
|
|
ev = WSACreateEvent();
|
|
|
|
if (fdp->events & _DBUS_POLLIN)
|
|
lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
|
|
|
|
if (fdp->events & _DBUS_POLLOUT)
|
|
lNetworkEvents |= FD_WRITE | FD_CONNECT;
|
|
|
|
WSAEventSelect (fdp->fd.sock, ev, lNetworkEvents);
|
|
|
|
pEvents[i] = ev;
|
|
}
|
|
|
|
ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
|
|
|
|
if (ready == WSA_WAIT_FAILED)
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
if (errno != WSAEWOULDBLOCK)
|
|
_dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
|
|
ret = -1;
|
|
}
|
|
else if (ready == WSA_WAIT_TIMEOUT)
|
|
{
|
|
_dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
|
|
ret = 0;
|
|
}
|
|
else if (ready < (WSA_WAIT_EVENT_0 + n_fds))
|
|
{
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
WSANETWORKEVENTS ne;
|
|
|
|
fdp->revents = 0;
|
|
|
|
WSAEnumNetworkEvents (fdp->fd.sock, pEvents[i], &ne);
|
|
|
|
if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
|
|
fdp->revents |= _DBUS_POLLIN;
|
|
|
|
if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
|
|
fdp->revents |= _DBUS_POLLOUT;
|
|
|
|
if (ne.lNetworkEvents & (FD_OOB))
|
|
fdp->revents |= _DBUS_POLLERR;
|
|
|
|
if(ne.lNetworkEvents)
|
|
ret++;
|
|
|
|
WSAEventSelect (fdp->fd.sock, pEvents[i], 0);
|
|
}
|
|
#ifdef DBUS_ENABLE_VERBOSE_MODE
|
|
_dbus_verbose ("_dbus_poll: to=%d", timeout_milliseconds);
|
|
if (!_dbus_dump_fd_revents (fds, n_fds))
|
|
{
|
|
_dbus_win_set_errno (ENOMEM);
|
|
ret = -1;
|
|
goto oom;
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
_dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
|
|
ret = -1;
|
|
}
|
|
|
|
oom:
|
|
if (pEvents != NULL)
|
|
{
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
if (pEvents[i] != WSA_INVALID_EVENT)
|
|
WSACloseEvent (pEvents[i]);
|
|
}
|
|
if (n_fds > DBUS_STACK_WSAEVENTS)
|
|
free (pEvents);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#else
|
|
/**
|
|
* Select based implementation for _dbus_poll().
|
|
*
|
|
* @param fds the file descriptors to poll
|
|
* @param n_fds number of descriptors in the array
|
|
* @param timeout_milliseconds timeout or -1 for infinite
|
|
* @returns numbers of fds with revents, or <0 on error
|
|
*/
|
|
static int
|
|
_dbus_poll_select (DBusPollFD *fds,
|
|
int n_fds,
|
|
int timeout_milliseconds)
|
|
{
|
|
fd_set read_set, write_set, err_set;
|
|
SOCKET max_fd = 0;
|
|
int i;
|
|
struct timeval tv;
|
|
int ready;
|
|
|
|
FD_ZERO (&read_set);
|
|
FD_ZERO (&write_set);
|
|
FD_ZERO (&err_set);
|
|
#ifdef DBUS_ENABLE_VERBOSE_MODE
|
|
_dbus_verbose("_dbus_poll: to=%d\n", timeout_milliseconds);
|
|
if (!_dbus_dump_fd_events (fds, n_fds))
|
|
return -1;
|
|
#endif
|
|
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
|
|
if (fdp->events & _DBUS_POLLIN)
|
|
FD_SET (fdp->fd.sock, &read_set);
|
|
|
|
if (fdp->events & _DBUS_POLLOUT)
|
|
FD_SET (fdp->fd.sock, &write_set);
|
|
|
|
FD_SET (fdp->fd.sock, &err_set);
|
|
|
|
max_fd = MAX (max_fd, fdp->fd.sock);
|
|
}
|
|
|
|
// Avoid random lockups with send(), for lack of a better solution so far
|
|
tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
|
|
tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
|
|
|
|
ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
|
|
|
|
if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
if (errno != WSAEWOULDBLOCK)
|
|
_dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
|
|
}
|
|
else if (ready == 0)
|
|
_dbus_verbose ("select: = 0\n");
|
|
else
|
|
if (ready > 0)
|
|
{
|
|
#ifdef DBUS_ENABLE_VERBOSE_MODE
|
|
_dbus_verbose ("select: to=%d\n", ready);
|
|
if (!_dbus_dump_fdset (fds, n_fds, &read_set, &write_set, &err_set))
|
|
{
|
|
_dbus_win_set_errno (ENOMEM);
|
|
return -1;
|
|
}
|
|
#endif
|
|
for (i = 0; i < n_fds; i++)
|
|
{
|
|
DBusPollFD *fdp = &fds[i];
|
|
|
|
fdp->revents = 0;
|
|
|
|
if (FD_ISSET (fdp->fd.sock, &read_set))
|
|
fdp->revents |= _DBUS_POLLIN;
|
|
|
|
if (FD_ISSET (fdp->fd.sock, &write_set))
|
|
fdp->revents |= _DBUS_POLLOUT;
|
|
|
|
if (FD_ISSET (fdp->fd.sock, &err_set))
|
|
fdp->revents |= _DBUS_POLLERR;
|
|
}
|
|
}
|
|
return ready;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* Wrapper for poll().
|
|
*
|
|
* @param fds the file descriptors to poll
|
|
* @param n_fds number of descriptors in the array
|
|
* @param timeout_milliseconds timeout or -1 for infinite
|
|
* @returns numbers of fds with revents, or <0 on error
|
|
*/
|
|
int
|
|
_dbus_poll (DBusPollFD *fds,
|
|
int n_fds,
|
|
int timeout_milliseconds)
|
|
{
|
|
#ifdef USE_CHRIS_IMPL
|
|
return _dbus_poll_events (fds, n_fds, timeout_milliseconds);
|
|
#else
|
|
return _dbus_poll_select (fds, n_fds, timeout_milliseconds);
|
|
#endif
|
|
}
|
|
|
|
/******************************************************************************
|
|
|
|
Original CVS version of dbus-sysdeps.c
|
|
|
|
******************************************************************************/
|
|
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
|
/* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
|
|
*
|
|
* Copyright (C) 2002, 2003 Red Hat, Inc.
|
|
* Copyright (C) 2003 CodeFactory AB
|
|
* Copyright (C) 2005 Novell, Inc.
|
|
*
|
|
* Licensed under the Academic Free License version 2.1
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
|
|
/**
|
|
* Exit the process, returning the given value.
|
|
*
|
|
* @param code the exit code
|
|
*/
|
|
void
|
|
_dbus_exit (int code)
|
|
{
|
|
_exit (code);
|
|
}
|
|
|
|
/**
|
|
* Creates a socket and connects to a socket at the given host
|
|
* and port. The connection fd is returned, and is set up as
|
|
* nonblocking.
|
|
*
|
|
* @param host the host name to connect to
|
|
* @param port the port to connect to
|
|
* @param family the address family to listen on, NULL for all
|
|
* @param error return location for error code
|
|
* @returns connection file descriptor or -1 on error
|
|
*/
|
|
DBusSocket
|
|
_dbus_connect_tcp_socket (const char *host,
|
|
const char *port,
|
|
const char *family,
|
|
DBusError *error)
|
|
{
|
|
return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
|
|
}
|
|
|
|
DBusSocket
|
|
_dbus_connect_tcp_socket_with_nonce (const char *host,
|
|
const char *port,
|
|
const char *family,
|
|
const char *noncefile,
|
|
DBusError *error)
|
|
{
|
|
int saved_errno = 0;
|
|
DBusList *connect_errors = NULL;
|
|
DBusSocket fd = DBUS_SOCKET_INIT;
|
|
int res;
|
|
struct addrinfo hints;
|
|
struct addrinfo *ai = NULL;
|
|
const struct addrinfo *tmp;
|
|
DBusError *connect_error;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
if (!_dbus_win_startup_winsock ())
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return _dbus_socket_get_invalid ();
|
|
}
|
|
|
|
_DBUS_ZERO (hints);
|
|
|
|
if (!family)
|
|
hints.ai_family = AF_UNSPEC;
|
|
else if (!strcmp(family, "ipv4"))
|
|
hints.ai_family = AF_INET;
|
|
else if (!strcmp(family, "ipv6"))
|
|
hints.ai_family = AF_INET6;
|
|
else
|
|
{
|
|
dbus_set_error (error,
|
|
DBUS_ERROR_BAD_ADDRESS,
|
|
"Unknown address family %s", family);
|
|
return _dbus_socket_get_invalid ();
|
|
}
|
|
hints.ai_protocol = IPPROTO_TCP;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
#ifdef AI_ADDRCONFIG
|
|
hints.ai_flags = AI_ADDRCONFIG;
|
|
#else
|
|
hints.ai_flags = 0;
|
|
#endif
|
|
|
|
if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
|
|
{
|
|
dbus_set_error (error,
|
|
_dbus_error_from_errno (res),
|
|
"Failed to lookup host/port: \"%s:%s\": %s (%d)",
|
|
host, port, _dbus_strerror (res), res);
|
|
goto out;
|
|
}
|
|
|
|
tmp = ai;
|
|
while (tmp)
|
|
{
|
|
if ((fd.sock = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
dbus_set_error (error,
|
|
_dbus_error_from_errno (saved_errno),
|
|
"Failed to open socket: %s",
|
|
_dbus_strerror (saved_errno));
|
|
_dbus_socket_invalidate (&fd);
|
|
goto out;
|
|
}
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR(error);
|
|
|
|
if (connect (fd.sock, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
closesocket(fd.sock);
|
|
_dbus_socket_invalidate (&fd);
|
|
|
|
connect_error = dbus_new0 (DBusError, 1);
|
|
|
|
if (connect_error == NULL)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
goto out;
|
|
}
|
|
|
|
dbus_error_init (connect_error);
|
|
_dbus_set_error_with_inet_sockaddr (connect_error,
|
|
tmp->ai_addr, tmp->ai_addrlen,
|
|
"Failed to connect to socket",
|
|
saved_errno);
|
|
|
|
if (!_dbus_list_append (&connect_errors, connect_error))
|
|
{
|
|
dbus_error_free (connect_error);
|
|
dbus_free (connect_error);
|
|
_DBUS_SET_OOM (error);
|
|
goto out;
|
|
}
|
|
|
|
tmp = tmp->ai_next;
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (!_dbus_socket_is_valid (fd))
|
|
{
|
|
_dbus_combine_tcp_errors (&connect_errors, "Failed to connect",
|
|
host, port, error);
|
|
goto out;
|
|
}
|
|
|
|
if (noncefile != NULL)
|
|
{
|
|
DBusString noncefileStr;
|
|
dbus_bool_t ret;
|
|
_dbus_string_init_const (&noncefileStr, noncefile);
|
|
ret = _dbus_send_nonce (fd, &noncefileStr, error);
|
|
|
|
if (!ret)
|
|
{
|
|
closesocket (fd.sock);
|
|
_dbus_socket_invalidate (&fd);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Every SOCKET is also a HANDLE. */
|
|
_dbus_win_handle_set_close_on_exec ((HANDLE) fd.sock);
|
|
|
|
if (!_dbus_set_socket_nonblocking (fd, error))
|
|
{
|
|
closesocket (fd.sock);
|
|
_dbus_socket_invalidate (&fd);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
if (ai != NULL)
|
|
freeaddrinfo (ai);
|
|
|
|
while ((connect_error = _dbus_list_pop_first (&connect_errors)))
|
|
{
|
|
dbus_error_free (connect_error);
|
|
dbus_free (connect_error);
|
|
}
|
|
|
|
return fd;
|
|
}
|
|
|
|
/**
|
|
* Creates a socket and binds it to the given path, then listens on
|
|
* the socket. The socket is set to be nonblocking. In case of port=0
|
|
* a random free port is used and returned in the port parameter.
|
|
* If inaddr_any is specified, the hostname is ignored.
|
|
*
|
|
* @param host the host name to listen on
|
|
* @param port the port to listen on, if zero a free port will be used
|
|
* @param family the address family to listen on, NULL for all
|
|
* @param retport string to return the actual port listened on
|
|
* @param retfamily string to return the actual family listened on
|
|
* @param fds_p location to store returned file descriptors
|
|
* @param error return location for errors
|
|
* @returns the number of listening file descriptors or -1 on error
|
|
*/
|
|
int
|
|
_dbus_listen_tcp_socket (const char *host,
|
|
const char *port,
|
|
const char *family,
|
|
DBusString *retport,
|
|
const char **retfamily,
|
|
DBusSocket **fds_p,
|
|
DBusError *error)
|
|
{
|
|
int saved_errno;
|
|
int nlisten_fd = 0, res, i, port_num = -1;
|
|
DBusList *bind_errors = NULL;
|
|
DBusError *bind_error = NULL;
|
|
DBusSocket *listen_fd = NULL;
|
|
struct addrinfo hints;
|
|
struct addrinfo *ai, *tmp;
|
|
dbus_bool_t have_ipv4 = FALSE;
|
|
dbus_bool_t have_ipv6 = FALSE;
|
|
|
|
// On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
|
|
//That's required for family == IPv6(which is the default on Vista if family is not given)
|
|
//So we use our own union instead of sockaddr_gen:
|
|
|
|
typedef union {
|
|
struct sockaddr Address;
|
|
struct sockaddr_in AddressIn;
|
|
struct sockaddr_in6 AddressIn6;
|
|
} mysockaddr_gen;
|
|
|
|
*fds_p = NULL;
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
if (!_dbus_win_startup_winsock ())
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return -1;
|
|
}
|
|
|
|
_DBUS_ZERO (hints);
|
|
|
|
if (!family)
|
|
hints.ai_family = AF_UNSPEC;
|
|
else if (!strcmp(family, "ipv4"))
|
|
hints.ai_family = AF_INET;
|
|
else if (!strcmp(family, "ipv6"))
|
|
hints.ai_family = AF_INET6;
|
|
else
|
|
{
|
|
dbus_set_error (error,
|
|
DBUS_ERROR_INVALID_ARGS,
|
|
"Unknown address family %s", family);
|
|
return -1;
|
|
}
|
|
|
|
hints.ai_protocol = IPPROTO_TCP;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
#ifdef AI_ADDRCONFIG
|
|
hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
|
#else
|
|
hints.ai_flags = AI_PASSIVE;
|
|
#endif
|
|
|
|
redo_lookup_with_port:
|
|
ai = NULL;
|
|
if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
|
|
{
|
|
dbus_set_error (error,
|
|
_dbus_error_from_errno (res),
|
|
"Failed to lookup host/port: \"%s:%s\": %s (%d)",
|
|
host ? host : "*", port, _dbus_strerror(res), res);
|
|
return -1;
|
|
}
|
|
|
|
tmp = ai;
|
|
while (tmp)
|
|
{
|
|
const int reuseaddr = 1, tcp_nodelay_on = 1;
|
|
DBusSocket fd = DBUS_SOCKET_INIT, *newlisten_fd;
|
|
|
|
if ((fd.sock = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
dbus_set_error (error,
|
|
_dbus_error_from_errno (saved_errno),
|
|
"Failed to open socket: %s",
|
|
_dbus_strerror (saved_errno));
|
|
goto failed;
|
|
}
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR(error);
|
|
|
|
if (setsockopt (fd.sock, SOL_SOCKET, SO_REUSEADDR, (const char *)&reuseaddr, sizeof(reuseaddr)) == SOCKET_ERROR)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
_dbus_warn ("Failed to set socket option \"%s:%s\": %s",
|
|
host ? host : "*", port, _dbus_strerror (saved_errno));
|
|
}
|
|
|
|
/* Nagle's algorithm imposes a huge delay on the initial messages
|
|
going over TCP. */
|
|
if (setsockopt (fd.sock, IPPROTO_TCP, TCP_NODELAY, (const char *)&tcp_nodelay_on, sizeof (tcp_nodelay_on)) == SOCKET_ERROR)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
_dbus_warn ("Failed to set TCP_NODELAY socket option \"%s:%s\": %s",
|
|
host ? host : "*", port, _dbus_strerror (saved_errno));
|
|
}
|
|
|
|
if (bind (fd.sock, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
closesocket (fd.sock);
|
|
|
|
/*
|
|
* We don't treat this as a fatal error, because there might be
|
|
* other addresses that we can listen on. In particular:
|
|
*
|
|
* - If saved_errno is WSAEADDRINUSE after we
|
|
* "goto redo_lookup_with_port" after binding a port on one of the
|
|
* possible addresses, we will try to bind that same port on
|
|
* every address, including the same address again for a second
|
|
* time, which will fail with WSAEADDRINUSE .
|
|
*
|
|
* - If saved_errno is WSAEADDRINUSE, it might be because binding to
|
|
* an IPv6 address implicitly binds to a corresponding IPv4
|
|
* address or vice versa.
|
|
*
|
|
* - If saved_errno is WSAEADDRNOTAVAIL when we asked for family
|
|
* AF_UNSPEC, it might be because IPv6 is disabled for this
|
|
* particular interface.
|
|
*/
|
|
bind_error = dbus_new0 (DBusError, 1);
|
|
|
|
if (bind_error == NULL)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
goto failed;
|
|
}
|
|
|
|
dbus_error_init (bind_error);
|
|
_dbus_set_error_with_inet_sockaddr (bind_error, tmp->ai_addr, tmp->ai_addrlen,
|
|
"Failed to bind socket",
|
|
saved_errno);
|
|
|
|
if (!_dbus_list_append (&bind_errors, bind_error))
|
|
{
|
|
dbus_error_free (bind_error);
|
|
dbus_free (bind_error);
|
|
_DBUS_SET_OOM (error);
|
|
goto failed;
|
|
}
|
|
|
|
/* Try the next address, maybe it will work better */
|
|
tmp = tmp->ai_next;
|
|
continue;
|
|
}
|
|
|
|
if (listen (fd.sock, 30 /* backlog */) == SOCKET_ERROR)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
closesocket (fd.sock);
|
|
_dbus_set_error_with_inet_sockaddr (error, tmp->ai_addr, tmp->ai_addrlen,
|
|
"Failed to listen on socket",
|
|
saved_errno);
|
|
goto failed;
|
|
}
|
|
|
|
newlisten_fd = dbus_realloc(listen_fd, sizeof(DBusSocket)*(nlisten_fd+1));
|
|
if (!newlisten_fd)
|
|
{
|
|
closesocket (fd.sock);
|
|
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
|
|
"Failed to allocate file handle array");
|
|
goto failed;
|
|
}
|
|
listen_fd = newlisten_fd;
|
|
listen_fd[nlisten_fd] = fd;
|
|
nlisten_fd++;
|
|
|
|
if (tmp->ai_addr->sa_family == AF_INET)
|
|
have_ipv4 = TRUE;
|
|
else if (tmp->ai_addr->sa_family == AF_INET6)
|
|
have_ipv6 = TRUE;
|
|
|
|
if (!_dbus_string_get_length(retport))
|
|
{
|
|
/* If the user didn't specify a port, or used 0, then
|
|
the kernel chooses a port. After the first address
|
|
is bound to, we need to force all remaining addresses
|
|
to use the same port */
|
|
if (!port || !strcmp(port, "0"))
|
|
{
|
|
mysockaddr_gen addr;
|
|
socklen_t addrlen = sizeof(addr);
|
|
char portbuf[NI_MAXSERV];
|
|
|
|
if (getsockname (fd.sock, &addr.Address, &addrlen) == SOCKET_ERROR ||
|
|
(res = getnameinfo (&addr.Address, addrlen, NULL, 0,
|
|
portbuf, sizeof(portbuf),
|
|
NI_NUMERICSERV)) != 0)
|
|
{
|
|
saved_errno = _dbus_get_low_level_socket_errno ();
|
|
dbus_set_error (error, _dbus_error_from_errno (saved_errno),
|
|
"Failed to resolve port \"%s:%s\": %s",
|
|
host ? host : "*", port, _dbus_strerror (saved_errno));
|
|
goto failed;
|
|
}
|
|
if (!_dbus_string_append(retport, portbuf))
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
|
|
goto failed;
|
|
}
|
|
|
|
/* Release current address list & redo lookup */
|
|
port = _dbus_string_get_const_data(retport);
|
|
freeaddrinfo(ai);
|
|
goto redo_lookup_with_port;
|
|
}
|
|
else
|
|
{
|
|
if (!_dbus_string_append(retport, port))
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
|
|
goto failed;
|
|
}
|
|
}
|
|
}
|
|
|
|
tmp = tmp->ai_next;
|
|
}
|
|
freeaddrinfo(ai);
|
|
ai = NULL;
|
|
|
|
if (!nlisten_fd)
|
|
{
|
|
_dbus_combine_tcp_errors (&bind_errors, "Failed to bind", host, port, error);
|
|
goto failed;
|
|
}
|
|
|
|
if (have_ipv4 && !have_ipv6)
|
|
*retfamily = "ipv4";
|
|
else if (!have_ipv4 && have_ipv6)
|
|
*retfamily = "ipv6";
|
|
|
|
sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
|
|
|
|
for (i = 0 ; i < nlisten_fd ; i++)
|
|
{
|
|
_dbus_win_handle_set_close_on_exec ((HANDLE) listen_fd[i].sock);
|
|
if (!_dbus_set_socket_nonblocking (listen_fd[i], error))
|
|
{
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
*fds_p = listen_fd;
|
|
|
|
/* This list might be non-empty even on success, because we might be
|
|
* ignoring WSAEADDRINUSE or WSAEADDRNOTAVAIL */
|
|
while ((bind_error = _dbus_list_pop_first (&bind_errors)))
|
|
{
|
|
dbus_error_free (bind_error);
|
|
dbus_free (bind_error);
|
|
}
|
|
return nlisten_fd;
|
|
|
|
failed:
|
|
if (ai)
|
|
freeaddrinfo(ai);
|
|
for (i = 0 ; i < nlisten_fd ; i++)
|
|
closesocket (listen_fd[i].sock);
|
|
|
|
while ((bind_error = _dbus_list_pop_first (&bind_errors)))
|
|
{
|
|
dbus_error_free (bind_error);
|
|
dbus_free (bind_error);
|
|
}
|
|
|
|
dbus_free(listen_fd);
|
|
return -1;
|
|
}
|
|
|
|
|
|
/**
|
|
* Accepts a connection on a listening socket.
|
|
* Handles EINTR for you.
|
|
*
|
|
* @param listen_fd the listen file descriptor
|
|
* @returns the connection fd of the client, or -1 on error
|
|
*/
|
|
DBusSocket
|
|
_dbus_accept (DBusSocket listen_fd)
|
|
{
|
|
DBusSocket client_fd;
|
|
|
|
retry:
|
|
client_fd.sock = accept (listen_fd.sock, NULL, NULL);
|
|
|
|
if (!_dbus_socket_is_valid (client_fd))
|
|
{
|
|
DBUS_SOCKET_SET_ERRNO ();
|
|
if (errno == EINTR)
|
|
goto retry;
|
|
}
|
|
|
|
_dbus_verbose ("client fd %Iu accepted\n", client_fd.sock);
|
|
|
|
return client_fd;
|
|
}
|
|
|
|
|
|
|
|
|
|
dbus_bool_t
|
|
_dbus_send_credentials_socket (DBusSocket handle,
|
|
DBusError *error)
|
|
{
|
|
/* FIXME: for the session bus credentials shouldn't matter (?), but
|
|
* for the system bus they are presumably essential. A rough outline
|
|
* of a way to implement the credential transfer would be this:
|
|
*
|
|
* client waits to *read* a byte.
|
|
*
|
|
* server creates a named pipe with a random name, sends a byte
|
|
* contining its length, and its name.
|
|
*
|
|
* client reads the name, connects to it (using Win32 API).
|
|
*
|
|
* server waits for connection to the named pipe, then calls
|
|
* ImpersonateNamedPipeClient(), notes its now-current credentials,
|
|
* calls RevertToSelf(), closes its handles to the named pipe, and
|
|
* is done. (Maybe there is some other way to get the SID of a named
|
|
* pipe client without having to use impersonation?)
|
|
*
|
|
* client closes its handles and is done.
|
|
*
|
|
* Ralf: Why not sending credentials over the given this connection ?
|
|
* Using named pipes makes it impossible to be connected from a unix client.
|
|
*
|
|
*/
|
|
int bytes_written;
|
|
DBusString buf;
|
|
|
|
_dbus_string_init_const_len (&buf, "\0", 1);
|
|
again:
|
|
bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
|
|
|
|
if (bytes_written < 0 && errno == EINTR)
|
|
goto again;
|
|
|
|
if (bytes_written < 0)
|
|
{
|
|
dbus_set_error (error, _dbus_error_from_errno (errno),
|
|
"Failed to write credentials byte: %s",
|
|
_dbus_strerror_from_errno ());
|
|
return FALSE;
|
|
}
|
|
else if (bytes_written == 0)
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_IO_ERROR,
|
|
"wrote zero bytes writing credentials byte");
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
_dbus_assert (bytes_written == 1);
|
|
_dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
|
|
return TRUE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Reads a single byte which must be nul (an error occurs otherwise),
|
|
* and reads unix credentials if available. Fills in pid/uid/gid with
|
|
* -1 if no credentials are available. Return value indicates whether
|
|
* a byte was read, not whether we got valid credentials. On some
|
|
* systems, such as Linux, reading/writing the byte isn't actually
|
|
* required, but we do it anyway just to avoid multiple codepaths.
|
|
*
|
|
* Fails if no byte is available, so you must select() first.
|
|
*
|
|
* The point of the byte is that on some systems we have to
|
|
* use sendmsg()/recvmsg() to transmit credentials.
|
|
*
|
|
* @param handle the client file descriptor
|
|
* @param credentials struct to fill with credentials of client
|
|
* @param error location to store error code
|
|
* @returns #TRUE on success
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_read_credentials_socket (DBusSocket handle,
|
|
DBusCredentials *credentials,
|
|
DBusError *error)
|
|
{
|
|
int bytes_read = 0;
|
|
DBusString buf;
|
|
|
|
char *sid = NULL;
|
|
dbus_pid_t pid;
|
|
int retval = FALSE;
|
|
|
|
// could fail due too OOM
|
|
if (_dbus_string_init (&buf))
|
|
{
|
|
bytes_read = _dbus_read_socket (handle, &buf, 1 );
|
|
|
|
if (bytes_read > 0)
|
|
_dbus_verbose ("got one zero byte from server\n");
|
|
|
|
_dbus_string_free (&buf);
|
|
}
|
|
|
|
pid = _dbus_get_peer_pid_from_tcp_handle (handle.sock);
|
|
if (pid == 0)
|
|
return TRUE;
|
|
|
|
_dbus_credentials_add_pid (credentials, pid);
|
|
|
|
if (_dbus_getsid (&sid, pid))
|
|
{
|
|
if (!_dbus_credentials_add_windows_sid (credentials, sid))
|
|
goto out;
|
|
}
|
|
|
|
retval = TRUE;
|
|
|
|
out:
|
|
if (sid)
|
|
LocalFree (sid);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Checks to make sure the given directory is
|
|
* private to the user
|
|
*
|
|
* @param dir the name of the directory
|
|
* @param error error return
|
|
* @returns #FALSE on failure
|
|
**/
|
|
dbus_bool_t
|
|
_dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
|
|
{
|
|
/* TODO */
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**
|
|
* Appends the given filename to the given directory.
|
|
*
|
|
* @todo it might be cute to collapse multiple '/' such as "foo//"
|
|
* concat "//bar"
|
|
*
|
|
* @param dir the directory name
|
|
* @param next_component the filename
|
|
* @returns #TRUE on success
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_concat_dir_and_file (DBusString *dir,
|
|
const DBusString *next_component)
|
|
{
|
|
dbus_bool_t dir_ends_in_slash;
|
|
dbus_bool_t file_starts_with_slash;
|
|
|
|
if (_dbus_string_get_length (dir) == 0 ||
|
|
_dbus_string_get_length (next_component) == 0)
|
|
return TRUE;
|
|
|
|
dir_ends_in_slash =
|
|
('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
|
|
'\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
|
|
|
|
file_starts_with_slash =
|
|
('/' == _dbus_string_get_byte (next_component, 0) ||
|
|
'\\' == _dbus_string_get_byte (next_component, 0));
|
|
|
|
if (dir_ends_in_slash && file_starts_with_slash)
|
|
{
|
|
_dbus_string_shorten (dir, 1);
|
|
}
|
|
else if (!(dir_ends_in_slash || file_starts_with_slash))
|
|
{
|
|
if (!_dbus_string_append_byte (dir, '\\'))
|
|
return FALSE;
|
|
}
|
|
|
|
return _dbus_string_copy (next_component, 0, dir,
|
|
_dbus_string_get_length (dir));
|
|
}
|
|
|
|
/*---------------- DBusCredentials ----------------------------------*/
|
|
|
|
/**
|
|
* Adds the credentials corresponding to the given username.
|
|
*
|
|
* @param credentials credentials to fill in
|
|
* @param username the username
|
|
* @returns #TRUE if the username existed and we got some credentials
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_credentials_add_from_user (DBusCredentials *credentials,
|
|
const DBusString *username,
|
|
DBusCredentialsAddFlags flags,
|
|
DBusError *error)
|
|
{
|
|
if (!_dbus_credentials_add_windows_sid (credentials,
|
|
_dbus_string_get_const_data (username)))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Adds the credentials of the current process to the
|
|
* passed-in credentials object.
|
|
*
|
|
* @param credentials credentials to add to
|
|
* @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
|
|
*/
|
|
|
|
dbus_bool_t
|
|
_dbus_credentials_add_from_current_process (DBusCredentials *credentials)
|
|
{
|
|
dbus_bool_t retval = FALSE;
|
|
char *sid = NULL;
|
|
|
|
if (!_dbus_getsid(&sid, _dbus_getpid()))
|
|
goto failed;
|
|
|
|
if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
|
|
goto failed;
|
|
|
|
if (!_dbus_credentials_add_windows_sid (credentials,sid))
|
|
goto failed;
|
|
|
|
retval = TRUE;
|
|
goto end;
|
|
failed:
|
|
retval = FALSE;
|
|
end:
|
|
if (sid)
|
|
LocalFree(sid);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Append to the string the identity we would like to have when we
|
|
* authenticate, on UNIX this is the current process UID and on
|
|
* Windows something else, probably a Windows SID string. No escaping
|
|
* is required, that is done in dbus-auth.c. The username here
|
|
* need not be anything human-readable, it can be the machine-readable
|
|
* form i.e. a user id.
|
|
*
|
|
* @param str the string to append to
|
|
* @returns #FALSE on no memory
|
|
* @todo to which class belongs this
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_append_user_from_current_process (DBusString *str)
|
|
{
|
|
dbus_bool_t retval = FALSE;
|
|
char *sid = NULL;
|
|
|
|
if (!_dbus_getsid(&sid, _dbus_getpid()))
|
|
return FALSE;
|
|
|
|
retval = _dbus_string_append (str,sid);
|
|
|
|
LocalFree(sid);
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Gets our process ID
|
|
* @returns process ID
|
|
*/
|
|
dbus_pid_t
|
|
_dbus_getpid (void)
|
|
{
|
|
return GetCurrentProcessId ();
|
|
}
|
|
|
|
/** Gets our Unix UID
|
|
* @returns on Windows, just DBUS_UID_UNSET
|
|
*/
|
|
dbus_uid_t
|
|
_dbus_getuid (void)
|
|
{
|
|
return DBUS_UID_UNSET;
|
|
}
|
|
|
|
/** nanoseconds in a second */
|
|
#define NANOSECONDS_PER_SECOND 1000000000
|
|
/** microseconds in a second */
|
|
#define MICROSECONDS_PER_SECOND 1000000
|
|
/** milliseconds in a second */
|
|
#define MILLISECONDS_PER_SECOND 1000
|
|
/** nanoseconds in a millisecond */
|
|
#define NANOSECONDS_PER_MILLISECOND 1000000
|
|
/** microseconds in a millisecond */
|
|
#define MICROSECONDS_PER_MILLISECOND 1000
|
|
|
|
/**
|
|
* Sleeps the given number of milliseconds.
|
|
* @param milliseconds number of milliseconds
|
|
*/
|
|
void
|
|
_dbus_sleep_milliseconds (int milliseconds)
|
|
{
|
|
Sleep (milliseconds);
|
|
}
|
|
|
|
|
|
/**
|
|
* Get current time, as in gettimeofday(). Never uses the monotonic
|
|
* clock.
|
|
*
|
|
* @param tv_sec return location for number of seconds
|
|
* @param tv_usec return location for number of microseconds
|
|
*/
|
|
void
|
|
_dbus_get_real_time (long *tv_sec,
|
|
long *tv_usec)
|
|
{
|
|
FILETIME ft;
|
|
dbus_uint64_t time64;
|
|
|
|
GetSystemTimeAsFileTime (&ft);
|
|
|
|
memcpy (&time64, &ft, sizeof (time64));
|
|
|
|
/* Convert from 100s of nanoseconds since 1601-01-01
|
|
* to Unix epoch. Yes, this is Y2038 unsafe.
|
|
*/
|
|
time64 -= DBUS_INT64_CONSTANT (116444736000000000);
|
|
time64 /= 10;
|
|
|
|
if (tv_sec)
|
|
*tv_sec = time64 / 1000000;
|
|
|
|
if (tv_usec)
|
|
*tv_usec = time64 % 1000000;
|
|
}
|
|
|
|
/**
|
|
* Get current time, as in gettimeofday(). Use the monotonic clock if
|
|
* available, to avoid problems when the system time changes.
|
|
*
|
|
* @param tv_sec return location for number of seconds
|
|
* @param tv_usec return location for number of microseconds
|
|
*/
|
|
void
|
|
_dbus_get_monotonic_time (long *tv_sec,
|
|
long *tv_usec)
|
|
{
|
|
/* no implementation yet, fall back to wall-clock time */
|
|
_dbus_get_real_time (tv_sec, tv_usec);
|
|
}
|
|
|
|
/**
|
|
* signal (SIGPIPE, SIG_IGN);
|
|
*/
|
|
void
|
|
_dbus_disable_sigpipe (void)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* Creates a directory. Unlike _dbus_ensure_directory(), this only succeeds
|
|
* if the directory is genuinely newly-created.
|
|
*
|
|
* @param filename directory filename
|
|
* @param error initialized error object
|
|
* @returns #TRUE on success
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_create_directory (const DBusString *filename,
|
|
DBusError *error)
|
|
{
|
|
const char *filename_c;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
filename_c = _dbus_string_get_const_data (filename);
|
|
|
|
if (!CreateDirectoryA (filename_c, NULL))
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_FAILED,
|
|
"Failed to create directory %s: %s\n",
|
|
filename_c, _dbus_strerror_from_errno ());
|
|
return FALSE;
|
|
}
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Creates a directory; succeeds if the directory
|
|
* is created or already existed.
|
|
*
|
|
* @param filename directory filename
|
|
* @param error initialized error object
|
|
* @returns #TRUE on success
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_ensure_directory (const DBusString *filename,
|
|
DBusError *error)
|
|
{
|
|
const char *filename_c;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
filename_c = _dbus_string_get_const_data (filename);
|
|
|
|
if (!CreateDirectoryA (filename_c, NULL))
|
|
{
|
|
if (GetLastError () == ERROR_ALREADY_EXISTS)
|
|
return TRUE;
|
|
|
|
dbus_set_error (error, DBUS_ERROR_FAILED,
|
|
"Failed to create directory %s: %s\n",
|
|
filename_c, _dbus_strerror_from_errno ());
|
|
return FALSE;
|
|
}
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**
|
|
* Generates the given number of random bytes,
|
|
* using the best mechanism we can come up with.
|
|
*
|
|
* @param str the string
|
|
* @param n_bytes the number of random bytes to append to string
|
|
* @param error location to store reason for failure
|
|
* @returns #TRUE on success
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_generate_random_bytes (DBusString *str,
|
|
int n_bytes,
|
|
DBusError *error)
|
|
{
|
|
int old_len;
|
|
unsigned char *p;
|
|
HCRYPTPROV hprov;
|
|
|
|
old_len = _dbus_string_get_length (str);
|
|
|
|
if (!_dbus_string_lengthen (str, n_bytes))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return FALSE;
|
|
}
|
|
|
|
p = _dbus_string_get_udata_len (str, old_len, n_bytes);
|
|
|
|
if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CryptGenRandom (hprov, n_bytes, p))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
CryptReleaseContext (hprov, 0);
|
|
return FALSE;
|
|
}
|
|
|
|
CryptReleaseContext (hprov, 0);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Gets the temporary files directory by inspecting the environment variables
|
|
* TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
|
|
*
|
|
* @returns location of temp directory, or #NULL if no memory for locking
|
|
*/
|
|
const char*
|
|
_dbus_get_tmpdir(void)
|
|
{
|
|
/* Protected by _DBUS_LOCK_sysdeps */
|
|
static const char* tmpdir = NULL;
|
|
static char buf[1000];
|
|
|
|
if (!_DBUS_LOCK (sysdeps))
|
|
return NULL;
|
|
|
|
if (tmpdir == NULL)
|
|
{
|
|
unsigned char *last_slash;
|
|
unsigned char *p = (unsigned char *)buf;
|
|
|
|
if (!GetTempPathA (sizeof (buf), buf))
|
|
{
|
|
_dbus_warn ("GetTempPath failed");
|
|
_dbus_abort ();
|
|
}
|
|
|
|
/* Drop terminating backslash or slash */
|
|
last_slash = _mbsrchr (p, '\\');
|
|
if (last_slash > p && last_slash[1] == '\0')
|
|
last_slash[0] = '\0';
|
|
last_slash = _mbsrchr (p, '/');
|
|
if (last_slash > p && last_slash[1] == '\0')
|
|
last_slash[0] = '\0';
|
|
|
|
tmpdir = buf;
|
|
}
|
|
|
|
_DBUS_UNLOCK (sysdeps);
|
|
|
|
_dbus_assert(tmpdir != NULL);
|
|
|
|
return tmpdir;
|
|
}
|
|
|
|
|
|
/**
|
|
* Deletes the given file.
|
|
*
|
|
* @param filename the filename
|
|
* @param error error location
|
|
*
|
|
* @returns #TRUE if unlink() succeeded
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_delete_file (const DBusString *filename,
|
|
DBusError *error)
|
|
{
|
|
const char *filename_c;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
filename_c = _dbus_string_get_const_data (filename);
|
|
|
|
if (DeleteFileA (filename_c) == 0)
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_FAILED,
|
|
"Failed to delete file %s: %s\n",
|
|
filename_c, _dbus_strerror_from_errno ());
|
|
return FALSE;
|
|
}
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
#if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
|
|
|
|
#if defined(_MSC_VER) || defined(DBUS_WINCE)
|
|
# ifdef BACKTRACES
|
|
# undef BACKTRACES
|
|
# endif
|
|
#else
|
|
# define BACKTRACES
|
|
#endif
|
|
|
|
#ifdef BACKTRACES
|
|
/*
|
|
* Backtrace Generator
|
|
*
|
|
* Copyright 2004 Eric Poech
|
|
* Copyright 2004 Robert Shearman
|
|
*
|
|
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <winver.h>
|
|
#include <imagehlp.h>
|
|
#include <stdio.h>
|
|
|
|
#define DPRINTF(fmt, ...) fprintf (stderr, fmt, ##__VA_ARGS__)
|
|
|
|
#ifdef _MSC_VER
|
|
#define BOOL int
|
|
|
|
#define __i386__
|
|
#endif
|
|
|
|
static void dump_backtrace_for_thread (HANDLE hThread)
|
|
{
|
|
ADDRESS old_address;
|
|
STACKFRAME sf;
|
|
CONTEXT context;
|
|
DWORD dwImageType;
|
|
int i = 0;
|
|
|
|
SymSetOptions (SYMOPT_UNDNAME | SYMOPT_LOAD_LINES);
|
|
SymInitialize (GetCurrentProcess (), NULL, TRUE);
|
|
|
|
|
|
/* can't use this function for current thread as GetThreadContext
|
|
* doesn't support getting context from current thread */
|
|
if (hThread == GetCurrentThread())
|
|
return;
|
|
|
|
DPRINTF ("Backtrace:\n");
|
|
|
|
_DBUS_ZERO (old_address);
|
|
_DBUS_ZERO (context);
|
|
context.ContextFlags = CONTEXT_FULL;
|
|
|
|
SuspendThread (hThread);
|
|
|
|
if (!GetThreadContext (hThread, &context))
|
|
{
|
|
DPRINTF ("Couldn't get thread context (error %ld)\n", GetLastError ());
|
|
ResumeThread (hThread);
|
|
return;
|
|
}
|
|
|
|
_DBUS_ZERO (sf);
|
|
|
|
#ifdef __i386__
|
|
dwImageType = IMAGE_FILE_MACHINE_I386;
|
|
sf.AddrFrame.Offset = context.Ebp;
|
|
sf.AddrFrame.Mode = AddrModeFlat;
|
|
sf.AddrPC.Offset = context.Eip;
|
|
sf.AddrPC.Mode = AddrModeFlat;
|
|
#elif defined(_M_X64)
|
|
dwImageType = IMAGE_FILE_MACHINE_AMD64;
|
|
sf.AddrPC.Offset = context.Rip;
|
|
sf.AddrPC.Mode = AddrModeFlat;
|
|
sf.AddrFrame.Offset = context.Rsp;
|
|
sf.AddrFrame.Mode = AddrModeFlat;
|
|
sf.AddrStack.Offset = context.Rsp;
|
|
sf.AddrStack.Mode = AddrModeFlat;
|
|
#elif defined(_M_IA64)
|
|
dwImageType = IMAGE_FILE_MACHINE_IA64;
|
|
sf.AddrPC.Offset = context.StIIP;
|
|
sf.AddrPC.Mode = AddrModeFlat;
|
|
sf.AddrFrame.Offset = context.IntSp;
|
|
sf.AddrFrame.Mode = AddrModeFlat;
|
|
sf.AddrBStore.Offset= context.RsBSP;
|
|
sf.AddrBStore.Mode = AddrModeFlat;
|
|
sf.AddrStack.Offset = context.IntSp;
|
|
sf.AddrStack.Mode = AddrModeFlat;
|
|
#else
|
|
# error You need to fill in the STACKFRAME structure for your architecture
|
|
#endif
|
|
|
|
/*
|
|
backtrace format
|
|
<level> <address> <symbol>[+offset] [ '[' <file> ':' <line> ']' ] [ 'in' <module> ]
|
|
example:
|
|
6 0xf75ade6b wine_switch_to_stack+0x2a [/usr/src/debug/wine-snapshot/libs/wine/port.c:59] in libwine.so.1
|
|
*/
|
|
while (StackWalk (dwImageType, GetCurrentProcess (),
|
|
hThread, &sf, &context, NULL, SymFunctionTableAccess,
|
|
SymGetModuleBase, NULL))
|
|
{
|
|
char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(char)];
|
|
PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
|
|
DWORD64 displacement;
|
|
IMAGEHLP_LINE line;
|
|
DWORD dwDisplacement;
|
|
IMAGEHLP_MODULE moduleInfo;
|
|
|
|
/*
|
|
on Wine64 version 1.7.54, we get an infinite number of stack entries
|
|
pointing to the same stack frame (_start+0x29 in <wine-loader>)
|
|
see bug https://bugs.winehq.org/show_bug.cgi?id=39606
|
|
*/
|
|
#ifndef __i386__
|
|
if (old_address.Offset == sf.AddrPC.Offset)
|
|
{
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
|
|
pSymbol->MaxNameLen = MAX_SYM_NAME;
|
|
|
|
if (SymFromAddr (GetCurrentProcess (), sf.AddrPC.Offset, &displacement, pSymbol))
|
|
{
|
|
if (displacement)
|
|
DPRINTF ("%3d %s+0x%I64x", i++, pSymbol->Name, displacement);
|
|
else
|
|
DPRINTF ("%3d %s", i++, pSymbol->Name);
|
|
}
|
|
else
|
|
DPRINTF ("%3d 0x%Ix", i++, sf.AddrPC.Offset);
|
|
|
|
line.SizeOfStruct = sizeof(IMAGEHLP_LINE);
|
|
if (SymGetLineFromAddr (GetCurrentProcess (), sf.AddrPC.Offset, &dwDisplacement, &line))
|
|
{
|
|
DPRINTF (" [%s:%ld]", line.FileName, line.LineNumber);
|
|
}
|
|
|
|
moduleInfo.SizeOfStruct = sizeof(moduleInfo);
|
|
if (SymGetModuleInfo (GetCurrentProcess (), sf.AddrPC.Offset, &moduleInfo))
|
|
{
|
|
DPRINTF (" in %s", moduleInfo.ModuleName);
|
|
}
|
|
DPRINTF ("\n");
|
|
old_address = sf.AddrPC;
|
|
}
|
|
ResumeThread (hThread);
|
|
}
|
|
|
|
static DWORD WINAPI dump_thread_proc (LPVOID lpParameter)
|
|
{
|
|
dump_backtrace_for_thread ((HANDLE) lpParameter);
|
|
return 0;
|
|
}
|
|
|
|
/* cannot get valid context from current thread, so we have to execute
|
|
* backtrace from another thread */
|
|
static void
|
|
dump_backtrace (void)
|
|
{
|
|
HANDLE hCurrentThread;
|
|
HANDLE hThread;
|
|
DWORD dwThreadId;
|
|
DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
|
|
GetCurrentProcess (), &hCurrentThread,
|
|
0, FALSE, DUPLICATE_SAME_ACCESS);
|
|
hThread = CreateThread (NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
|
|
0, &dwThreadId);
|
|
WaitForSingleObject (hThread, INFINITE);
|
|
CloseHandle (hThread);
|
|
CloseHandle (hCurrentThread);
|
|
}
|
|
#endif
|
|
#endif /* asserts or tests enabled */
|
|
|
|
#ifdef BACKTRACES
|
|
void _dbus_print_backtrace (void)
|
|
{
|
|
dump_backtrace ();
|
|
}
|
|
#else
|
|
void _dbus_print_backtrace (void)
|
|
{
|
|
_dbus_verbose (" D-Bus not compiled with backtrace support\n");
|
|
}
|
|
#endif
|
|
|
|
static dbus_uint32_t fromAscii(char ascii)
|
|
{
|
|
if(ascii >= '0' && ascii <= '9')
|
|
return ascii - '0';
|
|
if(ascii >= 'A' && ascii <= 'F')
|
|
return ascii - 'A' + 10;
|
|
if(ascii >= 'a' && ascii <= 'f')
|
|
return ascii - 'a' + 10;
|
|
return 0;
|
|
}
|
|
|
|
dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
|
|
dbus_bool_t create_if_not_found,
|
|
DBusError *error)
|
|
{
|
|
#ifdef DBUS_WINCE
|
|
return TRUE;
|
|
// TODO
|
|
#else
|
|
HW_PROFILE_INFOA info;
|
|
char *lpc = &info.szHwProfileGuid[0];
|
|
dbus_uint32_t u;
|
|
|
|
// the hw-profile guid lives long enough
|
|
if(!GetCurrentHwProfileA(&info))
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
|
|
return FALSE;
|
|
}
|
|
|
|
// Form: {12340001-4980-1920-6788-123456789012}
|
|
lpc++;
|
|
// 12340001
|
|
u = ((fromAscii(lpc[0]) << 0) |
|
|
(fromAscii(lpc[1]) << 4) |
|
|
(fromAscii(lpc[2]) << 8) |
|
|
(fromAscii(lpc[3]) << 12) |
|
|
(fromAscii(lpc[4]) << 16) |
|
|
(fromAscii(lpc[5]) << 20) |
|
|
(fromAscii(lpc[6]) << 24) |
|
|
(fromAscii(lpc[7]) << 28));
|
|
machine_id->as_uint32s[0] = u;
|
|
|
|
lpc += 9;
|
|
// 4980-1920
|
|
u = ((fromAscii(lpc[0]) << 0) |
|
|
(fromAscii(lpc[1]) << 4) |
|
|
(fromAscii(lpc[2]) << 8) |
|
|
(fromAscii(lpc[3]) << 12) |
|
|
(fromAscii(lpc[5]) << 16) |
|
|
(fromAscii(lpc[6]) << 20) |
|
|
(fromAscii(lpc[7]) << 24) |
|
|
(fromAscii(lpc[8]) << 28));
|
|
machine_id->as_uint32s[1] = u;
|
|
|
|
lpc += 10;
|
|
// 6788-1234
|
|
u = ((fromAscii(lpc[0]) << 0) |
|
|
(fromAscii(lpc[1]) << 4) |
|
|
(fromAscii(lpc[2]) << 8) |
|
|
(fromAscii(lpc[3]) << 12) |
|
|
(fromAscii(lpc[5]) << 16) |
|
|
(fromAscii(lpc[6]) << 20) |
|
|
(fromAscii(lpc[7]) << 24) |
|
|
(fromAscii(lpc[8]) << 28));
|
|
machine_id->as_uint32s[2] = u;
|
|
|
|
lpc += 9;
|
|
// 56789012
|
|
u = ((fromAscii(lpc[0]) << 0) |
|
|
(fromAscii(lpc[1]) << 4) |
|
|
(fromAscii(lpc[2]) << 8) |
|
|
(fromAscii(lpc[3]) << 12) |
|
|
(fromAscii(lpc[4]) << 16) |
|
|
(fromAscii(lpc[5]) << 20) |
|
|
(fromAscii(lpc[6]) << 24) |
|
|
(fromAscii(lpc[7]) << 28));
|
|
machine_id->as_uint32s[3] = u;
|
|
#endif
|
|
return TRUE;
|
|
}
|
|
|
|
// for proper cleanup in dbus-daemon
|
|
static HANDLE hDBusDaemonMutex = NULL;
|
|
static HANDLE hDBusSharedMem = NULL;
|
|
// sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
|
|
static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
|
|
// sync _dbus_get_autolaunch_address
|
|
static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
|
|
// mutex to determine if dbus-daemon is already started (per user)
|
|
static const char *cDBusDaemonMutex = "DBusDaemonMutex";
|
|
// named shm for dbus adress info (per user)
|
|
static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
|
|
|
|
/* custom command line parameter for autolaunching daemon */
|
|
static const char *autolaunch_custom_command_line_parameter = "";
|
|
|
|
/**
|
|
* Set command line parameters for the dbus daemon to start
|
|
* for an autolaunch session.
|
|
*
|
|
* The specified instance must be valid until the dbus-daemon
|
|
* is started.
|
|
*
|
|
* This function is not thread-safe, and can only be called from a
|
|
* single-threaded unit test.
|
|
*
|
|
* @param path string to use as command line parameter
|
|
*/
|
|
void _dbus_test_win_autolaunch_set_command_line_parameter (const char *path)
|
|
{
|
|
autolaunch_custom_command_line_parameter = path;
|
|
}
|
|
|
|
static HANDLE *autolaunch_handle_location;
|
|
|
|
/**
|
|
* Set location where to store process handle of an autostarted server
|
|
*
|
|
* This function is not thread-safe, and can only be called from a
|
|
* single-threaded unit test.
|
|
*
|
|
* After using the handle it must be closed with @ref CloseHandle().
|
|
*
|
|
* @param location Pointer where to store the handle
|
|
*/
|
|
void
|
|
_dbus_test_win_set_autolaunch_handle_location (HANDLE *location)
|
|
{
|
|
autolaunch_handle_location = location;
|
|
}
|
|
|
|
/**
|
|
* Return the hash of the installation root directory, which can be
|
|
* used to construct a per-installation-root scope for autolaunching
|
|
*
|
|
* If the installation root directory could not be
|
|
* determined, the returned length is set to zero.
|
|
*
|
|
* @param out initialized DBusString instance to return hash string
|
|
* @returns #FALSE on OOM, #TRUE if not OOM
|
|
*/
|
|
static dbus_bool_t
|
|
_dbus_get_install_root_as_hash (DBusString *out)
|
|
{
|
|
DBusString install_path;
|
|
dbus_bool_t retval = FALSE;
|
|
_dbus_assert (out != NULL);
|
|
|
|
if (!_dbus_string_init (&install_path))
|
|
return FALSE;
|
|
|
|
if (!_dbus_get_install_root (&install_path))
|
|
goto out;
|
|
|
|
/* the install path can't be determined */
|
|
if (_dbus_string_get_length (&install_path) == 0)
|
|
{
|
|
_dbus_string_set_length (out, 0);
|
|
retval = TRUE;
|
|
goto out;
|
|
}
|
|
|
|
_dbus_string_tolower_ascii (&install_path, 0, _dbus_string_get_length (&install_path));
|
|
|
|
if (!_dbus_sha_compute (&install_path, out))
|
|
goto out;
|
|
|
|
retval = TRUE;
|
|
|
|
out:
|
|
_dbus_string_free (&install_path);
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Build a name from \p basestring and \p scope, and append it to \p out
|
|
*
|
|
* The name will be suitable for naming Windows objects such as mutexes
|
|
* and shared memory segments that need to be unique for each distinct
|
|
* \p scope, but shared between clients with the same \p scope.
|
|
*
|
|
* If \p scope has one of the special values recognised in autolaunch:
|
|
* addresses on Windows, substitute a unique string based on the scope
|
|
* (the username or the hash of the installation path) instead of the
|
|
* literal scope itself.
|
|
*
|
|
* With the '*install-path' \p scope the returned length can be zero,
|
|
* indicating that the name could not be determined.
|
|
*
|
|
* @param out initialized DBusString instance to return bus address
|
|
* @returns #FALSE on OOM, #TRUE if not OOM
|
|
*/
|
|
static dbus_bool_t
|
|
_dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
|
|
{
|
|
_dbus_assert (out != NULL);
|
|
|
|
if (!scope || strlen (scope) == 0)
|
|
{
|
|
return _dbus_string_append (out, basestring);
|
|
}
|
|
else if (strcmp (scope, "*install-path") == 0
|
|
// for 1.3 compatibility
|
|
|| strcmp (scope, "install-path") == 0)
|
|
{
|
|
DBusString temp;
|
|
dbus_bool_t retval = FALSE;
|
|
|
|
if (!_dbus_string_init (&temp))
|
|
return FALSE;
|
|
|
|
if (!_dbus_get_install_root_as_hash (&temp))
|
|
goto out;
|
|
|
|
if (_dbus_string_get_length (&temp) == 0)
|
|
{
|
|
_dbus_string_set_length (out, 0);
|
|
retval = TRUE;
|
|
goto out;
|
|
}
|
|
|
|
if (!_dbus_string_append_printf (out, "%s-%s", basestring, _dbus_string_get_const_data (&temp)))
|
|
goto out;
|
|
|
|
retval = TRUE;
|
|
out:
|
|
_dbus_string_free (&temp);
|
|
return retval;
|
|
}
|
|
else if (strcmp (scope, "*user") == 0)
|
|
{
|
|
char *sid = NULL;
|
|
dbus_bool_t retval;
|
|
|
|
if (!_dbus_getsid (&sid, _dbus_getpid()))
|
|
return FALSE;
|
|
|
|
retval = _dbus_string_append_printf (out, "%s-%s", basestring, sid);
|
|
|
|
LocalFree(sid);
|
|
|
|
return retval;
|
|
}
|
|
else /* strlen(scope) > 0 */
|
|
{
|
|
return _dbus_string_append_printf (out, "%s-%s", basestring, scope);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return name of shared memory segment constructed from the autolaunch scope \p scope
|
|
*
|
|
* See @ref _dbus_get_address_string for further usage information.
|
|
*
|
|
* @param out initialized DBusString instance to return shared memory segment name
|
|
* @returns #FALSE on OOM, #TRUE if not OOM
|
|
*/
|
|
static dbus_bool_t
|
|
_dbus_get_shm_name (DBusString *out,const char *scope)
|
|
{
|
|
return _dbus_get_address_string (out, cDBusDaemonAddressInfo, scope);
|
|
}
|
|
|
|
/**
|
|
* Return mutex name for scope \p scope in \p out
|
|
*
|
|
* See @ref _dbus_get_address_string for further usage information.
|
|
*
|
|
* @param out initialized DBusString instance to return mutex name
|
|
* @param scope scope for the requested mutex name
|
|
* @returns #FALSE on OOM, #TRUE if not OOM
|
|
*/
|
|
static dbus_bool_t
|
|
_dbus_get_mutex_name (DBusString *out, const char *scope)
|
|
{
|
|
return _dbus_get_address_string (out, cDBusDaemonMutex, scope);
|
|
}
|
|
|
|
dbus_bool_t
|
|
_dbus_daemon_is_session_bus_address_published (const char *scope)
|
|
{
|
|
DBusRMutex *lock = NULL;
|
|
DBusString mutex_name;
|
|
|
|
if (!_dbus_string_init (&mutex_name))
|
|
return FALSE;
|
|
|
|
_dbus_verbose ("scope:%s\n", scope);
|
|
if (!_dbus_get_mutex_name (&mutex_name, scope) ||
|
|
/* not determinable */
|
|
_dbus_string_get_length (&mutex_name) == 0)
|
|
{
|
|
_dbus_string_free (&mutex_name);
|
|
return FALSE;
|
|
}
|
|
|
|
if (hDBusDaemonMutex)
|
|
{
|
|
_dbus_verbose ("(scope:%s) -> yes\n", scope);
|
|
return TRUE;
|
|
}
|
|
lock = _dbus_win_rmutex_named_new (cUniqueDBusInitMutex);
|
|
if (!lock)
|
|
return FALSE;
|
|
|
|
// sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
|
|
_dbus_platform_rmutex_lock (lock);
|
|
|
|
// we use CreateMutex instead of OpenMutex because of possible race conditions,
|
|
// see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
|
|
hDBusDaemonMutex = CreateMutexA (NULL, FALSE, _dbus_string_get_const_data(&mutex_name));
|
|
|
|
/* The client uses mutex ownership to detect a running server, so the server should do so too.
|
|
Fortunally the client deletes the mutex in the lock protected area, so checking presence
|
|
will work too. */
|
|
|
|
_dbus_platform_rmutex_unlock (lock);
|
|
_dbus_platform_rmutex_free (lock);
|
|
|
|
_dbus_string_free (&mutex_name);
|
|
|
|
if (hDBusDaemonMutex == NULL)
|
|
{
|
|
_dbus_verbose ("(scope:%s) -> no\n", scope);
|
|
return FALSE;
|
|
}
|
|
if (GetLastError() == ERROR_ALREADY_EXISTS)
|
|
{
|
|
CloseHandle(hDBusDaemonMutex);
|
|
hDBusDaemonMutex = NULL;
|
|
_dbus_verbose ("(scope:%s) -> yes\n", scope);
|
|
return TRUE;
|
|
}
|
|
// mutex wasn't created before, so return false.
|
|
// We leave the mutex name allocated for later reusage
|
|
// in _dbus_daemon_publish_session_bus_address.
|
|
_dbus_verbose ("(scope:%s) -> no\n", scope);
|
|
return FALSE;
|
|
}
|
|
|
|
dbus_bool_t
|
|
_dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
|
|
{
|
|
DBusRMutex *lock = NULL;
|
|
char *shared_addr = NULL;
|
|
DBusString shm_name = _DBUS_STRING_INIT_INVALID;
|
|
DBusString mutex_name;
|
|
dbus_uint64_t len;
|
|
dbus_bool_t retval = FALSE;
|
|
|
|
_dbus_assert (address);
|
|
|
|
if (!_dbus_string_init (&mutex_name))
|
|
return FALSE;
|
|
|
|
_dbus_verbose ("address:%s scope:%s\n", address, scope);
|
|
if (!_dbus_get_mutex_name (&mutex_name, scope) ||
|
|
/* not determinable */
|
|
_dbus_string_get_length (&mutex_name) == 0)
|
|
{
|
|
_dbus_string_free (&mutex_name);
|
|
return FALSE;
|
|
}
|
|
|
|
// sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
|
|
lock = _dbus_win_rmutex_named_new (cUniqueDBusInitMutex);
|
|
if (lock == NULL)
|
|
{
|
|
_dbus_string_free (&mutex_name);
|
|
return FALSE;
|
|
}
|
|
|
|
_dbus_platform_rmutex_lock (lock);
|
|
|
|
if (!hDBusDaemonMutex)
|
|
{
|
|
hDBusDaemonMutex = CreateMutexA (NULL, FALSE, _dbus_string_get_const_data(&mutex_name));
|
|
}
|
|
_dbus_string_free (&mutex_name);
|
|
|
|
// acquire the mutex
|
|
if (WaitForSingleObject (hDBusDaemonMutex, 10) != WAIT_OBJECT_0)
|
|
{
|
|
CloseHandle (hDBusDaemonMutex);
|
|
goto out;
|
|
}
|
|
|
|
if (!_dbus_string_init (&shm_name))
|
|
{
|
|
goto out;
|
|
}
|
|
|
|
if (!_dbus_get_shm_name (&shm_name, scope) ||
|
|
/* not determinable */
|
|
_dbus_string_get_length (&shm_name) == 0)
|
|
{
|
|
goto out;
|
|
}
|
|
|
|
// create shm
|
|
len = strlen (address) + 1;
|
|
|
|
hDBusSharedMem = CreateFileMappingA ( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
|
|
len >> 32, len & 0xffffffffu,
|
|
_dbus_string_get_const_data (&shm_name) );
|
|
_dbus_assert (hDBusSharedMem);
|
|
|
|
shared_addr = MapViewOfFile (hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0);
|
|
|
|
_dbus_assert (shared_addr);
|
|
|
|
strcpy(shared_addr, address);
|
|
|
|
// cleanup
|
|
UnmapViewOfFile (shared_addr);
|
|
|
|
_dbus_verbose ("published session bus address at %s\n",_dbus_string_get_const_data (&shm_name));
|
|
retval = TRUE;
|
|
|
|
out:
|
|
_dbus_platform_rmutex_unlock (lock);
|
|
_dbus_platform_rmutex_free (lock);
|
|
_dbus_string_free (&shm_name);
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Clear the platform-specific centralized location where the session
|
|
* bus address is published.
|
|
*
|
|
* This must only be called if \ref DBusServer.published_address is #TRUE,
|
|
* which is be the case if and only if platform-specific code has published
|
|
* the address centrally.
|
|
*
|
|
* On Windows, this is implemented by closing a global shared memory segment.
|
|
*
|
|
* On Unix, the session bus address is not published in a centralized
|
|
* location by libdbus, so this function does nothing. The closest
|
|
* equivalent on Unix is that the session bus address is published by the
|
|
* dbus-launch tool, and unpublished automatically when the dbus-launch
|
|
* tool exits.
|
|
* @return NULL in case of error
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_daemon_unpublish_session_bus_address (void)
|
|
{
|
|
DBusRMutex *lock = NULL;
|
|
|
|
_dbus_verbose ("\n");
|
|
// sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
|
|
lock = _dbus_win_rmutex_named_new (cUniqueDBusInitMutex);
|
|
if (lock == NULL)
|
|
return FALSE;
|
|
|
|
_dbus_platform_rmutex_lock (lock);
|
|
|
|
CloseHandle (hDBusSharedMem);
|
|
|
|
hDBusSharedMem = NULL;
|
|
|
|
ReleaseMutex (hDBusDaemonMutex);
|
|
|
|
CloseHandle (hDBusDaemonMutex);
|
|
|
|
hDBusDaemonMutex = NULL;
|
|
|
|
_dbus_platform_rmutex_unlock (lock);
|
|
_dbus_platform_rmutex_free (lock);
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Get server bus address from shared memory segment provided by running dbus-daemon
|
|
*
|
|
* @param address initialized DBusString instance to store the retrieved address
|
|
* @param shm_name the name of the shared memory segment
|
|
* @param wait if TRUE wait maximum 2 seconds for the presence of the shared memory segment
|
|
* @return #TRUE the bus address was fetched from the shared memory segment
|
|
* @return #FALSE error during execution
|
|
*/
|
|
static dbus_bool_t
|
|
_dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name, dbus_bool_t wait)
|
|
{
|
|
HANDLE sharedMem = NULL;
|
|
char *shared_addr;
|
|
int i;
|
|
int max = 20; /* max 2 seconds */
|
|
dbus_bool_t retval = FALSE;
|
|
|
|
if (!wait)
|
|
max = 1;
|
|
|
|
// read shm
|
|
for (i = 0; i < max; ++i)
|
|
{
|
|
// we know that dbus-daemon is available, so we wait until shm is available
|
|
sharedMem = OpenFileMappingA (FILE_MAP_READ, FALSE, _dbus_string_get_const_data (shm_name));
|
|
if (sharedMem == 0)
|
|
Sleep (100);
|
|
if (sharedMem != 0)
|
|
break;
|
|
}
|
|
|
|
if (sharedMem == 0)
|
|
return FALSE;
|
|
|
|
shared_addr = MapViewOfFile (sharedMem, FILE_MAP_READ, 0, 0, 0);
|
|
|
|
if (!shared_addr)
|
|
goto out;
|
|
|
|
retval = _dbus_string_append (address, shared_addr);
|
|
|
|
UnmapViewOfFile (shared_addr);
|
|
|
|
out:
|
|
CloseHandle (sharedMem);
|
|
return retval;
|
|
}
|
|
|
|
static dbus_bool_t
|
|
_dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
|
|
{
|
|
DBusRMutex *lock = NULL;
|
|
HANDLE daemon;
|
|
DBusString mutex_name;
|
|
dbus_bool_t retval = FALSE;
|
|
|
|
if (!_dbus_string_init (&mutex_name))
|
|
return FALSE;
|
|
|
|
if (!_dbus_get_mutex_name (&mutex_name, scope) ||
|
|
/* not determinable */
|
|
_dbus_string_get_length (&mutex_name) == 0)
|
|
{
|
|
_dbus_string_free (&mutex_name);
|
|
return FALSE;
|
|
}
|
|
|
|
// sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
|
|
lock = _dbus_win_rmutex_named_new (cUniqueDBusInitMutex);
|
|
if (lock == NULL)
|
|
return FALSE;
|
|
|
|
_dbus_platform_rmutex_lock (lock);
|
|
|
|
// do checks
|
|
daemon = CreateMutexA (NULL, FALSE, _dbus_string_get_const_data (&mutex_name));
|
|
if (WaitForSingleObject (daemon, 10) != WAIT_TIMEOUT)
|
|
{
|
|
ReleaseMutex (daemon);
|
|
CloseHandle (daemon);
|
|
goto out;
|
|
}
|
|
|
|
// read shm, wait max 2 seconds
|
|
retval = _dbus_get_autolaunch_shm (address, shm_name, TRUE);
|
|
|
|
// cleanup
|
|
CloseHandle (daemon);
|
|
|
|
out:
|
|
_dbus_platform_rmutex_unlock (lock);
|
|
_dbus_platform_rmutex_free (lock);
|
|
_dbus_string_free (&mutex_name);
|
|
|
|
return retval;
|
|
}
|
|
|
|
dbus_bool_t
|
|
_dbus_get_autolaunch_address (const char *scope,
|
|
DBusString *address,
|
|
DBusError *error)
|
|
{
|
|
DBusRMutex *lock = NULL;
|
|
STARTUPINFOA si;
|
|
PROCESS_INFORMATION pi;
|
|
dbus_bool_t retval = FALSE;
|
|
LPSTR lpFile;
|
|
char dbus_exe_path[MAX_PATH];
|
|
DBusString dbus_args = _DBUS_STRING_INIT_INVALID;
|
|
const char *daemon_name = DBUS_DAEMON_NAME ".exe";
|
|
DBusString shm_name;
|
|
HANDLE ready_event_handle = NULL;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
if (!_dbus_string_init (&shm_name))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!_dbus_get_shm_name (&shm_name, scope) ||
|
|
/* not determinable */
|
|
_dbus_string_get_length (&shm_name) == 0)
|
|
{
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
|
|
goto out;
|
|
}
|
|
|
|
lock = _dbus_win_rmutex_named_new (cDBusAutolaunchMutex);
|
|
if (lock == NULL)
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_FAILED, "Could not lock '%s'", cDBusAutolaunchMutex);
|
|
_dbus_string_free (&shm_name);
|
|
return FALSE;
|
|
}
|
|
|
|
_dbus_platform_rmutex_lock (lock);
|
|
|
|
if (_dbus_daemon_already_runs (address, &shm_name, scope))
|
|
{
|
|
_dbus_verbose ("found running dbus daemon for scope '%s' at %s\n",
|
|
scope ? scope : "", _dbus_string_get_const_data (&shm_name));
|
|
retval = TRUE;
|
|
goto out;
|
|
}
|
|
|
|
if (!SearchPathA (NULL, daemon_name, NULL, sizeof (dbus_exe_path), dbus_exe_path, &lpFile))
|
|
{
|
|
// Look in directory containing dbus shared library
|
|
HMODULE hmod;
|
|
char dbus_module_path[MAX_PATH];
|
|
DWORD rc;
|
|
|
|
_dbus_verbose ("did not found dbus daemon executable on default search path, "
|
|
"trying path where dbus shared library is located");
|
|
|
|
hmod = _dbus_win_get_dll_hmodule ();
|
|
rc = GetModuleFileNameA (hmod, dbus_module_path, sizeof (dbus_module_path));
|
|
if (rc <= 0)
|
|
{
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
|
|
retval = FALSE;
|
|
goto out;
|
|
}
|
|
else
|
|
{
|
|
char *ext_idx = strrchr (dbus_module_path, '\\');
|
|
if (ext_idx)
|
|
*ext_idx = '\0';
|
|
if (!SearchPathA (dbus_module_path, daemon_name, NULL, sizeof (dbus_exe_path), dbus_exe_path, &lpFile))
|
|
{
|
|
dbus_set_error (error, DBUS_ERROR_FAILED,
|
|
"Could not find dbus-daemon executable. "
|
|
"Please add the path to %s to your PATH "
|
|
"environment variable or start the daemon manually",
|
|
daemon_name);
|
|
retval = FALSE;
|
|
goto out;
|
|
}
|
|
_dbus_verbose ("found dbus daemon executable at %s", dbus_module_path);
|
|
}
|
|
}
|
|
|
|
// Create process
|
|
ZeroMemory (&si, sizeof (si));
|
|
si.cb = sizeof (si);
|
|
ZeroMemory (&pi, sizeof (pi));
|
|
|
|
if (!_dbus_string_init (&dbus_args))
|
|
{
|
|
dbus_set_error_const (error, DBUS_ERROR_NO_MEMORY, "Failed to initialize argument buffer");
|
|
retval = FALSE;
|
|
goto out;
|
|
}
|
|
|
|
if (!_dbus_string_append_printf (&dbus_args, "\"%s\" %s", dbus_exe_path,
|
|
autolaunch_custom_command_line_parameter ? autolaunch_custom_command_line_parameter : "--session"))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
retval = FALSE;
|
|
goto out;
|
|
}
|
|
|
|
ready_event_handle = _dbus_win_event_create_inheritable (error);
|
|
if (ready_event_handle == NULL)
|
|
goto out;
|
|
|
|
_dbus_verbose ("Creating connection readiness event: handle=%p\n", ready_event_handle);
|
|
if (!_dbus_string_append_printf (&dbus_args, " \"--ready-event-handle=%p\"", ready_event_handle))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
goto out;
|
|
}
|
|
|
|
_dbus_verbose ("Starting dbus daemon with args: '%s'\n", _dbus_string_get_const_data (&dbus_args));
|
|
if (CreateProcessA (dbus_exe_path, _dbus_string_get_data (&dbus_args), NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
|
|
{
|
|
DWORD status;
|
|
HANDLE events[2];
|
|
|
|
CloseHandle (pi.hThread);
|
|
|
|
_dbus_verbose ("Wait until dbus-daemon is ready for connections (event handle %p)\n", ready_event_handle);
|
|
|
|
events[0] = ready_event_handle;
|
|
events[1] = pi.hProcess;
|
|
status = WaitForMultipleObjects (2, events, FALSE, 30000);
|
|
|
|
switch (status)
|
|
{
|
|
case WAIT_OBJECT_0:
|
|
/* ready event signalled, everything is okay */
|
|
retval = TRUE;
|
|
break;
|
|
|
|
case WAIT_OBJECT_0 + 1:
|
|
/* dbus-daemon process has exited */
|
|
dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_EXITED, "dbus-daemon exited before signalling ready");
|
|
goto out;
|
|
|
|
case WAIT_FAILED:
|
|
_dbus_win_set_error_from_last_error (error, "Unable to wait for server readiness (handle %p)", ready_event_handle);
|
|
goto out;
|
|
|
|
case WAIT_TIMEOUT:
|
|
/* GetLastError() is not set */
|
|
dbus_set_error (error, DBUS_ERROR_TIMEOUT, "Timed out waiting for server readiness or exit (handle %p)", ready_event_handle);
|
|
goto out;
|
|
|
|
default:
|
|
/* GetLastError() is probably not set? */
|
|
dbus_set_error (error, DBUS_ERROR_FAILED, "Unknown result '%lu' while waiting for server readiness (handle %p)", status, ready_event_handle);
|
|
goto out;
|
|
}
|
|
_dbus_verbose ("Got signal that dbus-daemon with process id '%ld' is ready for connections\n", GetProcessId (pi.hProcess));
|
|
|
|
if (autolaunch_handle_location != NULL)
|
|
{
|
|
*autolaunch_handle_location = pi.hProcess;
|
|
_dbus_verbose ("Returning process handle of started server (handle=%p)\n", pi.hProcess);
|
|
}
|
|
else
|
|
{
|
|
CloseHandle (pi.hProcess);
|
|
}
|
|
|
|
/* do not wait for the appearance of shm, we can assume that it is present */
|
|
retval = _dbus_get_autolaunch_shm (address, &shm_name, FALSE);
|
|
if (retval == FALSE)
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
|
|
}
|
|
else
|
|
{
|
|
dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
|
|
retval = FALSE;
|
|
}
|
|
|
|
out:
|
|
_DBUS_ASSERT_ERROR_XOR_BOOL (error, retval);
|
|
_dbus_platform_rmutex_unlock (lock);
|
|
_dbus_platform_rmutex_free (lock);
|
|
_dbus_string_free (&shm_name);
|
|
_dbus_string_free (&dbus_args);
|
|
if (ready_event_handle)
|
|
_dbus_win_event_free (ready_event_handle, NULL);
|
|
|
|
_DBUS_ASSERT_ERROR_XOR_BOOL (error, retval);
|
|
return retval;
|
|
}
|
|
|
|
/** Makes the file readable by every user in the system.
|
|
*
|
|
* @param filename the filename
|
|
* @param error error location
|
|
* @returns #TRUE if the file's permissions could be changed.
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_make_file_world_readable(const DBusString *filename,
|
|
DBusError *error)
|
|
{
|
|
// TODO
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Atomically increments an integer
|
|
*
|
|
* @param atomic pointer to the integer to increment
|
|
* @returns the value before incrementing
|
|
*
|
|
*/
|
|
dbus_int32_t
|
|
_dbus_atomic_inc (DBusAtomic *atomic)
|
|
{
|
|
// +/- 1 is needed here!
|
|
// no volatile argument with mingw
|
|
return InterlockedIncrement (&atomic->value) - 1;
|
|
}
|
|
|
|
/**
|
|
* Atomically decrement an integer
|
|
*
|
|
* @param atomic pointer to the integer to decrement
|
|
* @returns the value before decrementing
|
|
*
|
|
*/
|
|
dbus_int32_t
|
|
_dbus_atomic_dec (DBusAtomic *atomic)
|
|
{
|
|
// +/- 1 is needed here!
|
|
// no volatile argument with mingw
|
|
return InterlockedDecrement (&atomic->value) + 1;
|
|
}
|
|
|
|
/**
|
|
* Atomically get the value of an integer. It may change at any time
|
|
* thereafter, so this is mostly only useful for assertions.
|
|
*
|
|
* @param atomic pointer to the integer to get
|
|
* @returns the value at this moment
|
|
*/
|
|
dbus_int32_t
|
|
_dbus_atomic_get (DBusAtomic *atomic)
|
|
{
|
|
/* In this situation, GLib issues a MemoryBarrier() and then returns
|
|
* atomic->value. However, mingw from mingw.org (not to be confused with
|
|
* mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
|
|
* headers, so we have to get a memory barrier some other way.
|
|
*
|
|
* InterlockedIncrement is older, and is documented on MSDN to be a full
|
|
* memory barrier, so let's use that.
|
|
*/
|
|
long dummy = 0;
|
|
|
|
InterlockedExchange (&dummy, 1);
|
|
|
|
return atomic->value;
|
|
}
|
|
|
|
/**
|
|
* Atomically set the value of an integer to 0.
|
|
*
|
|
* @param atomic pointer to the integer to set
|
|
*/
|
|
void
|
|
_dbus_atomic_set_zero (DBusAtomic *atomic)
|
|
{
|
|
InterlockedExchange (&atomic->value, 0);
|
|
}
|
|
|
|
/**
|
|
* Atomically set the value of an integer to something nonzero.
|
|
*
|
|
* @param atomic pointer to the integer to set
|
|
*/
|
|
void
|
|
_dbus_atomic_set_nonzero (DBusAtomic *atomic)
|
|
{
|
|
InterlockedExchange (&atomic->value, 1);
|
|
}
|
|
|
|
/**
|
|
* Called when the bus daemon is signaled to reload its configuration; any
|
|
* caches should be nuked. Of course any caches that need explicit reload
|
|
* are probably broken, but c'est la vie.
|
|
*
|
|
*
|
|
*/
|
|
void
|
|
_dbus_flush_caches (void)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
|
|
* for Winsock so is abstracted)
|
|
*
|
|
* @returns #TRUE if e == EAGAIN or e == EWOULDBLOCK
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_get_is_errno_eagain_or_ewouldblock (int e)
|
|
{
|
|
return e == WSAEWOULDBLOCK;
|
|
}
|
|
|
|
/**
|
|
* Fill str with the absolute path of the D-Bus installation, or truncate str
|
|
* to zero length if we cannot determine it.
|
|
*
|
|
* @param str buffer for installation path
|
|
* @returns #FALSE on OOM, #TRUE if not OOM
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_get_install_root (DBusString *str)
|
|
{
|
|
/* this is just an initial guess */
|
|
DWORD pathLength = MAX_PATH;
|
|
unsigned char *lastSlash;
|
|
unsigned char *prefix;
|
|
|
|
do
|
|
{
|
|
/* allocate enough space for our best guess at the length */
|
|
if (!_dbus_string_set_length (str, pathLength))
|
|
{
|
|
_dbus_string_set_length (str, 0);
|
|
return FALSE;
|
|
}
|
|
|
|
SetLastError (0);
|
|
pathLength = GetModuleFileNameA (_dbus_win_get_dll_hmodule (),
|
|
_dbus_string_get_data (str), _dbus_string_get_length (str));
|
|
|
|
if (pathLength == 0 || GetLastError () != 0)
|
|
{
|
|
/* failed, but not OOM */
|
|
_dbus_string_set_length (str, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
/* if the return is strictly less than the buffer size, it has
|
|
* not been truncated, so we can continue */
|
|
if (pathLength < (DWORD) _dbus_string_get_length (str))
|
|
{
|
|
/* reduce the length to match what Windows filled in */
|
|
if (!_dbus_string_set_length (str, pathLength))
|
|
{
|
|
_dbus_string_set_length (str, 0);
|
|
return FALSE;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/* else it may have been truncated; try with a larger buffer */
|
|
pathLength *= 2;
|
|
}
|
|
while (TRUE);
|
|
|
|
/* the rest of this function works by direct byte manipulation of the
|
|
* underlying buffer */
|
|
prefix = _dbus_string_get_udata (str);
|
|
|
|
lastSlash = _mbsrchr (prefix, '\\');
|
|
if (lastSlash == NULL) {
|
|
/* failed, but not OOM */
|
|
_dbus_string_set_length (str, 0);
|
|
return TRUE;
|
|
}
|
|
//cut off binary name
|
|
lastSlash[1] = 0;
|
|
|
|
//cut possible "\\bin"
|
|
//this fails if we are in a double-byte system codepage and the
|
|
//folder's name happens to end with the *bytes*
|
|
//"\\bin"... (I.e. the second byte of some Han character and then
|
|
//the Latin "bin", but that is not likely I think...
|
|
if (lastSlash - prefix >= 4 && _mbsnicmp (lastSlash - 4, (const unsigned char *)"\\bin", 4) == 0)
|
|
lastSlash[-3] = 0;
|
|
else if (lastSlash - prefix >= 10 && _mbsnicmp (lastSlash - 10, (const unsigned char *)"\\bin\\debug", 10) == 0)
|
|
lastSlash[-9] = 0;
|
|
else if (lastSlash - prefix >= 12 && _mbsnicmp (lastSlash - 12, (const unsigned char *)"\\bin\\release", 12) == 0)
|
|
lastSlash[-11] = 0;
|
|
|
|
/* fix up the length to match the byte-manipulation */
|
|
_dbus_string_set_length (str, strlen ((char *) prefix));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* See comment in dbus-sysdeps-unix.c */
|
|
dbus_bool_t
|
|
_dbus_lookup_session_address (dbus_bool_t *supported,
|
|
DBusString *address,
|
|
DBusError *error)
|
|
{
|
|
/* Probably fill this in with something based on COM? */
|
|
*supported = FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Appends the directory in which a keyring for the given credentials
|
|
* should be stored. The credentials should have either a Windows or
|
|
* UNIX user in them. The directory should be an absolute path.
|
|
*
|
|
* On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
|
|
* be something else, since the dotfile convention is not normal on Windows.
|
|
*
|
|
* @param directory string to append directory to
|
|
* @param credentials credentials the directory should be for
|
|
*
|
|
* @returns #FALSE on no memory
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_append_keyring_directory_for_credentials (DBusString *directory,
|
|
DBusCredentials *credentials)
|
|
{
|
|
DBusString homedir;
|
|
DBusString dotdir;
|
|
const char *homepath;
|
|
const char *homedrive;
|
|
|
|
_dbus_assert (credentials != NULL);
|
|
_dbus_assert (!_dbus_credentials_are_anonymous (credentials));
|
|
|
|
if (!_dbus_string_init (&homedir))
|
|
return FALSE;
|
|
|
|
homedrive = _dbus_getenv("HOMEDRIVE");
|
|
if (homedrive != NULL && *homedrive != '\0')
|
|
{
|
|
_dbus_string_append(&homedir,homedrive);
|
|
}
|
|
|
|
homepath = _dbus_getenv("HOMEPATH");
|
|
if (homepath != NULL && *homepath != '\0')
|
|
{
|
|
_dbus_string_append(&homedir,homepath);
|
|
}
|
|
|
|
#ifdef DBUS_ENABLE_EMBEDDED_TESTS
|
|
{
|
|
const char *override;
|
|
|
|
override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
|
|
if (override != NULL && *override != '\0')
|
|
{
|
|
_dbus_string_set_length (&homedir, 0);
|
|
if (!_dbus_string_append (&homedir, override))
|
|
goto failed;
|
|
|
|
_dbus_verbose ("Using fake homedir for testing: %s\n",
|
|
_dbus_string_get_const_data (&homedir));
|
|
}
|
|
else
|
|
{
|
|
/* Not strictly thread-safe, but if we fail at thread-safety here,
|
|
* the worst that will happen is some extra warnings. */
|
|
static dbus_bool_t already_warned = FALSE;
|
|
if (!already_warned)
|
|
{
|
|
_dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid");
|
|
already_warned = TRUE;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef DBUS_WINCE
|
|
/* It's not possible to create a .something directory in Windows CE
|
|
using the file explorer. */
|
|
#define KEYRING_DIR "dbus-keyrings"
|
|
#else
|
|
#define KEYRING_DIR ".dbus-keyrings"
|
|
#endif
|
|
|
|
_dbus_string_init_const (&dotdir, KEYRING_DIR);
|
|
if (!_dbus_concat_dir_and_file (&homedir,
|
|
&dotdir))
|
|
goto failed;
|
|
|
|
if (!_dbus_string_copy (&homedir, 0,
|
|
directory, _dbus_string_get_length (directory))) {
|
|
goto failed;
|
|
}
|
|
|
|
_dbus_string_free (&homedir);
|
|
return TRUE;
|
|
|
|
failed:
|
|
_dbus_string_free (&homedir);
|
|
return FALSE;
|
|
}
|
|
|
|
/** Checks if a file exists
|
|
*
|
|
* @param file full path to the file
|
|
* @returns #TRUE if file exists
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_file_exists (const char *file)
|
|
{
|
|
DWORD attributes = GetFileAttributesA (file);
|
|
|
|
if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* A wrapper around strerror() because some platforms
|
|
* may be lame and not have strerror().
|
|
*
|
|
* @param error_number errno.
|
|
* @returns error description.
|
|
*/
|
|
const char*
|
|
_dbus_strerror (int error_number)
|
|
{
|
|
#ifdef DBUS_WINCE
|
|
// TODO
|
|
return "unknown";
|
|
#else
|
|
const char *msg;
|
|
|
|
switch (error_number)
|
|
{
|
|
case WSAEINTR:
|
|
return "Interrupted function call";
|
|
case WSAEACCES:
|
|
return "Permission denied";
|
|
case WSAEFAULT:
|
|
return "Bad address";
|
|
case WSAEINVAL:
|
|
return "Invalid argument";
|
|
case WSAEMFILE:
|
|
return "Too many open files";
|
|
case WSAEWOULDBLOCK:
|
|
return "Resource temporarily unavailable";
|
|
case WSAEINPROGRESS:
|
|
return "Operation now in progress";
|
|
case WSAEALREADY:
|
|
return "Operation already in progress";
|
|
case WSAENOTSOCK:
|
|
return "Socket operation on nonsocket";
|
|
case WSAEDESTADDRREQ:
|
|
return "Destination address required";
|
|
case WSAEMSGSIZE:
|
|
return "Message too long";
|
|
case WSAEPROTOTYPE:
|
|
return "Protocol wrong type for socket";
|
|
case WSAENOPROTOOPT:
|
|
return "Bad protocol option";
|
|
case WSAEPROTONOSUPPORT:
|
|
return "Protocol not supported";
|
|
case WSAESOCKTNOSUPPORT:
|
|
return "Socket type not supported";
|
|
case WSAEOPNOTSUPP:
|
|
return "Operation not supported";
|
|
case WSAEPFNOSUPPORT:
|
|
return "Protocol family not supported";
|
|
case WSAEAFNOSUPPORT:
|
|
return "Address family not supported by protocol family";
|
|
case WSAEADDRINUSE:
|
|
return "Address already in use";
|
|
case WSAEADDRNOTAVAIL:
|
|
return "Cannot assign requested address";
|
|
case WSAENETDOWN:
|
|
return "Network is down";
|
|
case WSAENETUNREACH:
|
|
return "Network is unreachable";
|
|
case WSAENETRESET:
|
|
return "Network dropped connection on reset";
|
|
case WSAECONNABORTED:
|
|
return "Software caused connection abort";
|
|
case WSAECONNRESET:
|
|
return "Connection reset by peer";
|
|
case WSAENOBUFS:
|
|
return "No buffer space available";
|
|
case WSAEISCONN:
|
|
return "Socket is already connected";
|
|
case WSAENOTCONN:
|
|
return "Socket is not connected";
|
|
case WSAESHUTDOWN:
|
|
return "Cannot send after socket shutdown";
|
|
case WSAETIMEDOUT:
|
|
return "Connection timed out";
|
|
case WSAECONNREFUSED:
|
|
return "Connection refused";
|
|
case WSAEHOSTDOWN:
|
|
return "Host is down";
|
|
case WSAEHOSTUNREACH:
|
|
return "No route to host";
|
|
case WSAEPROCLIM:
|
|
return "Too many processes";
|
|
case WSAEDISCON:
|
|
return "Graceful shutdown in progress";
|
|
case WSATYPE_NOT_FOUND:
|
|
return "Class type not found";
|
|
case WSAHOST_NOT_FOUND:
|
|
return "Host not found";
|
|
case WSATRY_AGAIN:
|
|
return "Nonauthoritative host not found";
|
|
case WSANO_RECOVERY:
|
|
return "This is a nonrecoverable error";
|
|
case WSANO_DATA:
|
|
return "Valid name, no data record of requested type";
|
|
case WSA_INVALID_HANDLE:
|
|
return "Specified event object handle is invalid";
|
|
case WSA_INVALID_PARAMETER:
|
|
return "One or more parameters are invalid";
|
|
case WSA_IO_INCOMPLETE:
|
|
return "Overlapped I/O event object not in signaled state";
|
|
case WSA_IO_PENDING:
|
|
return "Overlapped operations will complete later";
|
|
case WSA_NOT_ENOUGH_MEMORY:
|
|
return "Insufficient memory available";
|
|
case WSA_OPERATION_ABORTED:
|
|
return "Overlapped operation aborted";
|
|
#ifdef WSAINVALIDPROCTABLE
|
|
|
|
case WSAINVALIDPROCTABLE:
|
|
return "Invalid procedure table from service provider";
|
|
#endif
|
|
#ifdef WSAINVALIDPROVIDER
|
|
|
|
case WSAINVALIDPROVIDER:
|
|
return "Invalid service provider version number";
|
|
#endif
|
|
#ifdef WSAPROVIDERFAILEDINIT
|
|
|
|
case WSAPROVIDERFAILEDINIT:
|
|
return "Unable to initialize a service provider";
|
|
#endif
|
|
|
|
case WSASYSCALLFAILURE:
|
|
return "System call failure";
|
|
|
|
default:
|
|
msg = strerror (error_number);
|
|
|
|
if (msg == NULL)
|
|
msg = "unknown";
|
|
|
|
return msg;
|
|
}
|
|
#endif //DBUS_WINCE
|
|
}
|
|
|
|
/**
|
|
* Assigns an error name and message corresponding to a Win32 error
|
|
* code to a DBusError. Does nothing if error is #NULL.
|
|
*
|
|
* @param error the error.
|
|
* @param code the Win32 error code
|
|
*/
|
|
void
|
|
_dbus_win_set_error_from_win_error (DBusError *error,
|
|
int code)
|
|
{
|
|
char *msg;
|
|
|
|
/* As we want the English message, use the A API */
|
|
FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
|
FORMAT_MESSAGE_IGNORE_INSERTS |
|
|
FORMAT_MESSAGE_FROM_SYSTEM,
|
|
NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
|
|
(LPSTR) &msg, 0, NULL);
|
|
if (msg)
|
|
{
|
|
dbus_set_error (error, "win32.error", "%s", msg);
|
|
LocalFree (msg);
|
|
}
|
|
else
|
|
dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
|
|
}
|
|
|
|
void
|
|
_dbus_win_warn_win_error (const char *message,
|
|
unsigned long code)
|
|
{
|
|
DBusError error;
|
|
|
|
dbus_error_init (&error);
|
|
_dbus_win_set_error_from_win_error (&error, code);
|
|
_dbus_warn ("%s: %s", message, error.message);
|
|
dbus_error_free (&error);
|
|
}
|
|
|
|
/**
|
|
* Removes a directory; Directory must be empty
|
|
*
|
|
* @param filename directory filename
|
|
* @param error initialized error object
|
|
* @returns #TRUE on success
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_delete_directory (const DBusString *filename,
|
|
DBusError *error)
|
|
{
|
|
const char *filename_c;
|
|
|
|
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
|
|
|
|
filename_c = _dbus_string_get_const_data (filename);
|
|
|
|
if (RemoveDirectoryA (filename_c) == 0)
|
|
{
|
|
char *emsg = _dbus_win_error_string (GetLastError ());
|
|
dbus_set_error (error, _dbus_win_error_from_last_error (),
|
|
"Failed to remove directory %s: %s",
|
|
filename_c, emsg);
|
|
_dbus_win_free_error_string (emsg);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Checks whether the filename is an absolute path
|
|
*
|
|
* @param filename the filename
|
|
* @returns #TRUE if an absolute path
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_path_is_absolute (const DBusString *filename)
|
|
{
|
|
if (_dbus_string_get_length (filename) > 0)
|
|
return _dbus_string_get_byte (filename, 1) == ':'
|
|
|| _dbus_string_get_byte (filename, 0) == '\\'
|
|
|| _dbus_string_get_byte (filename, 0) == '/';
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
dbus_bool_t
|
|
_dbus_check_setuid (void)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
_dbus_save_socket_errno (void)
|
|
{
|
|
return errno;
|
|
}
|
|
|
|
void
|
|
_dbus_restore_socket_errno (int saved_errno)
|
|
{
|
|
_dbus_win_set_errno (saved_errno);
|
|
}
|
|
|
|
static const char *log_tag = "dbus";
|
|
static DBusLogFlags log_flags = DBUS_LOG_FLAGS_STDERR;
|
|
|
|
/**
|
|
* Initialize the system log.
|
|
*
|
|
* The "tag" is not copied, and must remain valid for the entire lifetime of
|
|
* the process or until _dbus_init_system_log() is called again. In practice
|
|
* it will normally be a constant.
|
|
*
|
|
* @param tag the name of the executable (syslog tag)
|
|
* @param mode whether to log to stderr, the system log or both
|
|
*/
|
|
void
|
|
_dbus_init_system_log (const char *tag,
|
|
DBusLogFlags flags)
|
|
{
|
|
/* We never want to turn off logging completely */
|
|
_dbus_assert (
|
|
(flags & (DBUS_LOG_FLAGS_STDERR | DBUS_LOG_FLAGS_SYSTEM_LOG)) != 0);
|
|
|
|
log_tag = tag;
|
|
log_flags = flags;
|
|
}
|
|
|
|
/**
|
|
* Log a message to the system log file (e.g. syslog on Unix).
|
|
*
|
|
* @param severity a severity value
|
|
* @param msg a printf-style format string
|
|
* @param args arguments for the format string
|
|
*/
|
|
void
|
|
_dbus_logv (DBusSystemLogSeverity severity,
|
|
const char *msg,
|
|
va_list args)
|
|
{
|
|
const char *s = "";
|
|
va_list tmp;
|
|
|
|
switch(severity)
|
|
{
|
|
case DBUS_SYSTEM_LOG_INFO: s = "info"; break;
|
|
case DBUS_SYSTEM_LOG_WARNING: s = "warning"; break;
|
|
case DBUS_SYSTEM_LOG_SECURITY: s = "security"; break;
|
|
case DBUS_SYSTEM_LOG_ERROR: s = "error"; break;
|
|
default: _dbus_assert_not_reached ("invalid log severity");
|
|
}
|
|
|
|
if (log_flags & DBUS_LOG_FLAGS_SYSTEM_LOG)
|
|
{
|
|
DBusString out = _DBUS_STRING_INIT_INVALID;
|
|
const char *message = NULL;
|
|
DBUS_VA_COPY (tmp, args);
|
|
|
|
if (!_dbus_string_init (&out))
|
|
goto out;
|
|
if (!_dbus_string_append_printf (&out, "%s: ", s))
|
|
goto out;
|
|
if (!_dbus_string_append_printf_valist (&out, msg, tmp))
|
|
goto out;
|
|
message = _dbus_string_get_const_data (&out);
|
|
out:
|
|
if (message != NULL)
|
|
{
|
|
OutputDebugStringA (message);
|
|
}
|
|
else
|
|
{
|
|
OutputDebugStringA ("Out of memory while formatting message: '''");
|
|
OutputDebugStringA (msg);
|
|
OutputDebugStringA ("'''");
|
|
}
|
|
|
|
va_end (tmp);
|
|
_dbus_string_free (&out);
|
|
}
|
|
|
|
if (log_flags & DBUS_LOG_FLAGS_STDERR)
|
|
{
|
|
DBUS_VA_COPY (tmp, args);
|
|
fprintf (stderr, "%s[%lu]: %s: ", log_tag, _dbus_pid_for_log (), s);
|
|
vfprintf (stderr, msg, tmp);
|
|
fprintf (stderr, "\n");
|
|
va_end (tmp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return the low-level representation of a socket error, as used by
|
|
* cross-platform socket APIs like inet_ntop(), send() and recv(). This
|
|
* is the standard errno on Unix, but is WSAGetLastError() on Windows.
|
|
*
|
|
* Some libdbus internal functions copy this into errno, but with
|
|
* hindsight that was probably a design flaw.
|
|
*/
|
|
int
|
|
_dbus_get_low_level_socket_errno (void)
|
|
{
|
|
return WSAGetLastError ();
|
|
}
|
|
|
|
void
|
|
_dbus_win_set_error_from_last_error (DBusError *error,
|
|
const char *format,
|
|
...)
|
|
{
|
|
const char *name;
|
|
char *message = NULL;
|
|
|
|
if (error == NULL)
|
|
return;
|
|
|
|
/* make sure to do this first, in case subsequent library calls overwrite GetLastError() */
|
|
name = _dbus_win_error_from_last_error ();
|
|
message = _dbus_win_error_string (GetLastError ());
|
|
|
|
if (format != NULL)
|
|
{
|
|
DBusString str;
|
|
va_list args;
|
|
dbus_bool_t retval;
|
|
|
|
if (!_dbus_string_init (&str))
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
goto out;
|
|
}
|
|
|
|
va_start (args, format);
|
|
retval = _dbus_string_append_printf_valist (&str, format, args);
|
|
va_end (args);
|
|
if (!retval)
|
|
{
|
|
_DBUS_SET_OOM (error);
|
|
_dbus_string_free (&str);
|
|
goto out;
|
|
}
|
|
|
|
dbus_set_error (error, name, "%s: %s", _dbus_string_get_const_data (&str), message);
|
|
_dbus_string_free (&str);
|
|
}
|
|
else
|
|
{
|
|
dbus_set_error (error, name, "%s", message);
|
|
}
|
|
|
|
out:
|
|
if (message != NULL)
|
|
_dbus_win_free_error_string (message);
|
|
|
|
_DBUS_ASSERT_ERROR_IS_SET (error);
|
|
}
|
|
|
|
/**
|
|
* Creates a Windows event object and returns the corresponding handle
|
|
*
|
|
* The returned object is unnamed, is a manual-reset event object,
|
|
* is initially in the non-signalled state, and is inheritable by child
|
|
* processes.
|
|
*
|
|
* @param error the error to set
|
|
* @return handle for the created event
|
|
* @return #NULL if an error has occurred, the reason is returned in \p error
|
|
*/
|
|
HANDLE
|
|
_dbus_win_event_create_inheritable (DBusError *error)
|
|
{
|
|
HANDLE handle;
|
|
|
|
handle = CreateEvent (NULL, TRUE, FALSE, NULL);
|
|
if (handle == NULL)
|
|
{
|
|
_dbus_win_set_error_from_last_error (error, "Could not create event");
|
|
return NULL;
|
|
}
|
|
else if (GetLastError () == ERROR_ALREADY_EXISTS)
|
|
{
|
|
_dbus_win_set_error_from_last_error (error, "Event already exists");
|
|
return NULL;
|
|
}
|
|
|
|
if (!SetHandleInformation (handle, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT))
|
|
{
|
|
_dbus_win_set_error_from_last_error (error, "Could not set inheritance for event %p", handle);
|
|
CloseHandle (handle);
|
|
return NULL;
|
|
}
|
|
return handle;
|
|
}
|
|
|
|
/**
|
|
* Set a Windows event to the signalled state
|
|
*
|
|
* @param handle the handle for the event to be set
|
|
* @return TRUE the event was set successfully
|
|
* @return FALSE an error has occurred, the reason is returned in \p error
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_win_event_set (HANDLE handle, DBusError *error)
|
|
{
|
|
_dbus_assert (handle != NULL);
|
|
|
|
if (!SetEvent (handle))
|
|
{
|
|
_dbus_win_set_error_from_last_error (error, "Could not trigger event (handle %p)", handle);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Wait for a Windows event to enter the signalled state
|
|
*
|
|
* @param handle the handle for the event to wait for
|
|
* @param timeout the waiting time in milliseconds, or INFINITE to wait forever,
|
|
* or 0 to check immediately and not wait (polling)
|
|
* @param error the error to set
|
|
* @return TRUE the event was set successfully
|
|
* @return FALSE an error has occurred, the reason is returned in \p error
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_win_event_wait (HANDLE handle, int timeout, DBusError *error)
|
|
{
|
|
DWORD status;
|
|
|
|
_dbus_assert (handle != NULL);
|
|
|
|
status = WaitForSingleObject (handle, timeout);
|
|
switch (status)
|
|
{
|
|
case WAIT_OBJECT_0:
|
|
return TRUE;
|
|
|
|
case WAIT_FAILED:
|
|
{
|
|
_dbus_win_set_error_from_last_error (error, "Unable to wait for event (handle %p)", handle);
|
|
return FALSE;
|
|
}
|
|
|
|
case WAIT_TIMEOUT:
|
|
/* GetLastError() is not set */
|
|
dbus_set_error (error, DBUS_ERROR_TIMEOUT, "Timed out waiting for event (handle %p)", handle);
|
|
return FALSE;
|
|
|
|
default:
|
|
/* GetLastError() is probably not set? */
|
|
dbus_set_error (error, DBUS_ERROR_FAILED, "Unknown result '%lu' while waiting for event (handle %p)", status, handle);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delete a Windows event
|
|
*
|
|
* @param handle handle for the event to delete
|
|
* @param error the error to set (optional)
|
|
* @return TRUE the event has been deleted successfully or the handle is one of the special sentinel values #NULL or #INVALID_HANDLE_VALUE
|
|
* @return FALSE an error has occurred, the reason is returned in \p error if specified
|
|
*/
|
|
dbus_bool_t
|
|
_dbus_win_event_free (HANDLE handle, DBusError *error)
|
|
{
|
|
if (handle == NULL || handle == INVALID_HANDLE_VALUE)
|
|
return TRUE;
|
|
|
|
if (CloseHandle (handle))
|
|
return TRUE;
|
|
|
|
/* the handle may already be closed */
|
|
if (GetLastError () == ERROR_INVALID_HANDLE)
|
|
return TRUE;
|
|
|
|
_dbus_win_set_error_from_last_error (error, "Could not close event (handle %p)", handle);
|
|
return FALSE;
|
|
}
|
|
|
|
/** @} end of sysdeps-win */
|
|
/* tests in dbus-sysdeps-util.c */
|