* Copyright (C) 2002, 2003 Red Hat, Inc.
* Copyright (C) 2003 CodeFactory AB
* Copyright (C) 2005 Novell, Inc.
- * Copyright (C) 2006 Ralf Habacker <ralf.habacker@freenet.de>
* Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
* Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
+ * Copyright (C) 2006-2013 Ralf Habacker <ralf.habacker@freenet.de>
*
* Licensed under the Academic Free License version 2.1
*
#include <windows.h>
#include <ws2tcpip.h>
#include <wincrypt.h>
+#include <iphlpapi.h>
-/* Declarations missing in mingw's headers */
+/* Declarations missing in mingw's and windows sdk 7.0 headers */
extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
#endif
}
+static BOOL is_winxp_sp3_or_lower();
+
+/*
+ * _MIB_TCPROW_EX and friends are not available in system headers
+ * and are mapped to attribute identical ...OWNER_PID typedefs.
+ */
+typedef MIB_TCPROW_OWNER_PID _MIB_TCPROW_EX;
+typedef MIB_TCPTABLE_OWNER_PID MIB_TCPTABLE_EX;
+typedef PMIB_TCPTABLE_OWNER_PID PMIB_TCPTABLE_EX;
+typedef DWORD (WINAPI *ProcAllocateAndGetTcpExtTableFromStack)(PMIB_TCPTABLE_EX*,BOOL,HANDLE,DWORD,DWORD);
+static ProcAllocateAndGetTcpExtTableFromStack lpfnAllocateAndGetTcpExTableFromStack = NULL;
+
+/**
+ * AllocateAndGetTcpExTableFromStack() is undocumented and not exported,
+ * but is the only way to do this in older XP versions.
+ * @return true if the procedures could be loaded
+ */
+static BOOL
+load_ex_ip_helper_procedures(void)
+{
+ HMODULE hModule = LoadLibrary ("iphlpapi.dll");
+ if (hModule == NULL)
+ {
+ _dbus_verbose ("could not load iphlpapi.dll\n");
+ return FALSE;
+ }
+
+ lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack)GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
+ if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
+ {
+ _dbus_verbose ("could not find function AllocateAndGetTcpExTableFromStack in iphlpapi.dll\n");
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ * get pid from localhost tcp connection using peer_port
+ * This function is available on WinXP >= SP3
+ * @param peer_port peers tcp port
+ * @return process id or 0 if connection has not been found
+ */
+static dbus_pid_t
+get_pid_from_extended_tcp_table(int peer_port)
+{
+ dbus_pid_t result;
+ DWORD errorCode, size, i;
+ MIB_TCPTABLE_OWNER_PID *tcp_table;
+
+ if ((errorCode =
+ GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
+ {
+ tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
+ if (tcp_table == NULL)
+ {
+ _dbus_verbose ("Error allocating memory\n");
+ return 0;
+ }
+ }
+ else
+ {
+ _dbus_win_warn_win_error ("unexpected error returned from GetExtendedTcpTable", errorCode);
+ return 0;
+ }
+
+ if ((errorCode = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
+ {
+ _dbus_verbose ("Error fetching tcp table %d\n", (int)errorCode);
+ dbus_free (tcp_table);
+ return 0;
+ }
+
+ result = 0;
+ for (i = 0; i < tcp_table->dwNumEntries; i++)
+ {
+ MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
+ int local_address = ntohl (p->dwLocalAddr);
+ int local_port = ntohs (p->dwLocalPort);
+ if (p->dwState == MIB_TCP_STATE_ESTAB
+ && local_address == INADDR_LOOPBACK && local_port == peer_port)
+ result = p->dwOwningPid;
+ }
+
+ dbus_free (tcp_table);
+ _dbus_verbose ("got pid %lu\n", result);
+ return result;
+}
+
+/**
+ * get pid from localhost tcp connection using peer_port
+ * This function is available on all WinXP versions, but
+ * not in wine (at least version <= 1.6.0)
+ * @param peer_port peers tcp port
+ * @return process id or 0 if connection has not been found
+ */
+static dbus_pid_t
+get_pid_from_tcp_ex_table(int peer_port)
+{
+ dbus_pid_t result;
+ DWORD errorCode, i;
+ PMIB_TCPTABLE_EX tcp_table = NULL;
+
+ if (!load_ex_ip_helper_procedures ())
+ {
+ _dbus_verbose
+ ("Error not been able to load iphelper procedures\n");
+ return 0;
+ }
+
+ errorCode = lpfnAllocateAndGetTcpExTableFromStack (&tcp_table, TRUE, GetProcessHeap(), 0, 2);
+
+ if (errorCode != NO_ERROR)
+ {
+ _dbus_verbose
+ ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
+ return 0;
+ }
+
+ result = 0;
+ for (i = 0; i < tcp_table->dwNumEntries; i++)
+ {
+ _MIB_TCPROW_EX *p = &tcp_table->table[i];
+ int local_port = ntohs (p->dwLocalPort);
+ int local_address = ntohl (p->dwLocalAddr);
+ if (local_address == INADDR_LOOPBACK && local_port == peer_port)
+ {
+ result = p->dwOwningPid;
+ break;
+ }
+ }
+
+ HeapFree (GetProcessHeap(), 0, tcp_table);
+ _dbus_verbose ("got pid %lu\n", result);
+ return result;
+}
+
+/**
+ * @brief return peer process id from tcp handle for localhost connections
+ * @param handle tcp socket descriptor
+ * @return process id or 0 in case the process id could not be fetched
+ */
+static dbus_pid_t
+_dbus_get_peer_pid_from_tcp_handle (int handle)
+{
+ struct sockaddr_storage addr;
+ socklen_t len = sizeof (addr);
+ int peer_port;
+
+ dbus_pid_t result;
+ dbus_bool_t is_localhost = FALSE;
+
+ getpeername (handle, (struct sockaddr *) &addr, &len);
+
+ if (addr.ss_family == AF_INET)
+ {
+ struct sockaddr_in *s = (struct sockaddr_in *) &addr;
+ peer_port = ntohs (s->sin_port);
+ is_localhost = (ntohl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
+ }
+ else if (addr.ss_family == AF_INET6)
+ {
+ _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
+ return 0;
+ /*
+ struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
+ peer_port = ntohs (s->sin6_port);
+ is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
+ _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
+ */
+ }
+ else
+ {
+ _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
+ return 0;
+ }
+
+ if (!is_localhost)
+ {
+ _dbus_verbose ("could not fetch process id from remote process\n");
+ return 0;
+ }
+
+ if (peer_port == 0)
+ {
+ _dbus_verbose
+ ("Error not been able to fetch tcp peer port from connection\n");
+ return 0;
+ }
+
+ _dbus_verbose ("trying to get peers pid");
+
+ result = get_pid_from_extended_tcp_table (peer_port);
+ if (result > 0)
+ return result;
+ result = get_pid_from_tcp_ex_table (peer_port);
+ return result;
+}
/* Convert GetLastError() to a dbus error. */
const char*
* on exec. Should be called for all file
* descriptors in D-Bus code.
*
- * @param fd the file descriptor
+ * @param handle the Windows HANDLE
*/
void
_dbus_fd_set_close_on_exec (intptr_t handle)
/**
* Sets a file descriptor to be nonblocking.
*
- * @param fd the file descriptor.
+ * @param handle the file descriptor.
* @param error address of error location.
* @returns #TRUE on success.
*/
#endif
-
-
-void
+/**
+ * @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)
- return;
+ goto out;
wVersionRequested = MAKEWORD (2, 0);
}
beenhere = TRUE;
+
+out:
+ _DBUS_UNLOCK (sysdeps);
+ return TRUE;
}
char buf[1024];
int bufsize;
int len;
+ va_list args_copy;
bufsize = sizeof (buf);
- len = _vsnprintf (buf, bufsize - 1, format, args);
+ DBUS_VA_COPY (args_copy, args);
+ len = _vsnprintf (buf, bufsize - 1, format, args_copy);
+ va_end (args_copy);
while (len == -1) /* try again */
{
bufsize *= 2;
p = malloc (bufsize);
- len = _vsnprintf (p, bufsize - 1, format, args);
+
+ 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 _dbus_getpid ();
}
-
#ifndef DBUS_WINCE
+
+static BOOL is_winxp_sp3_or_lower()
+{
+ 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 points to sid buffer, need to be freed with LocalFree()
+ * @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
* @returns process sid
*/
static dbus_bool_t
-_dbus_getsid(char **sid)
+_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;
-
- if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
+
+ HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : 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;
retval = TRUE;
failed:
+ CloseHandle (process_handle);
if (process_token != INVALID_HANDLE_VALUE)
CloseHandle (process_token);
- _dbus_verbose("_dbus_getsid() returns %d\n",retval);
+ _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
return retval;
}
#endif
* Creates a full-duplex pipe (as in socketpair()).
* Sets both ends of the pipe nonblocking.
*
- * @todo libdbus only uses this for the debug-pipe server, so in
- * principle it could be in dbus-sysdeps-util.c, except that
- * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
- * debug-pipe server is used.
- *
* @param fd1 return location for one end
* @param fd2 return location for the other end
* @param blocking #TRUE if pipe should be blocking
struct sockaddr_in saddr;
int len;
u_long arg;
- fd_set read_set, write_set;
- struct timeval tv;
- int res;
- _dbus_win_startup_winsock ();
+ if (!_dbus_win_startup_winsock ())
+ {
+ _DBUS_SET_OOM (error);
+ return FALSE;
+ }
temp = socket (AF_INET, SOCK_STREAM, 0);
if (temp == INVALID_SOCKET)
msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
for (i = 0; i < n_fds; i++)
{
- static dbus_bool_t warned = FALSE;
DBusPollFD *fdp = &fds[i];
msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
for (i = 0; i < n_fds; i++)
{
- static dbus_bool_t warned = FALSE;
DBusPollFD *fdp = &fds[i];
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
- _dbus_win_startup_winsock ();
+ if (!_dbus_win_startup_winsock ())
+ {
+ _DBUS_SET_OOM (error);
+ return -1;
+ }
_DBUS_ZERO (hints);
*fds_p = NULL;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
- _dbus_win_startup_winsock ();
+ if (!_dbus_win_startup_winsock ())
+ {
+ _DBUS_SET_OOM (error);
+ return -1;
+ }
_DBUS_ZERO (hints);
* 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 client_fd the client file descriptor
+ * @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
{
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))
+ if (_dbus_string_init (&buf))
{
- bytes_read = _dbus_read_socket(handle, &buf, 1 );
+ bytes_read = _dbus_read_socket (handle, &buf, 1 );
if (bytes_read > 0)
- _dbus_verbose("got one zero byte from server");
+ _dbus_verbose ("got one zero byte from server\n");
- _dbus_string_free(&buf);
+ _dbus_string_free (&buf);
}
- _dbus_credentials_add_from_current_process (credentials);
- _dbus_verbose("FIXME: get faked credentials from current process");
+ pid = _dbus_get_peer_pid_from_tcp_handle (handle);
+ if (pid == 0)
+ return TRUE;
- 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;
}
/**
dbus_bool_t retval = FALSE;
char *sid = NULL;
- if (!_dbus_getsid(&sid))
+ if (!_dbus_getsid(&sid, _dbus_getpid()))
goto failed;
- if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
+ if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
goto failed;
if (!_dbus_credentials_add_windows_sid (credentials,sid))
dbus_bool_t retval = FALSE;
char *sid = NULL;
- if (!_dbus_getsid(&sid))
+ if (!_dbus_getsid(&sid, _dbus_getpid()))
return FALSE;
retval = _dbus_string_append (str,sid);
/**
- * Get current time, as in gettimeofday().
+ * 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_current_time (long *tv_sec,
- long *tv_usec)
+_dbus_get_real_time (long *tv_sec,
+ long *tv_usec)
{
FILETIME ft;
dbus_uint64_t time64;
*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);
* 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
+ * @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)
{
char *last_slash;
tmpdir = buf;
}
+ _DBUS_UNLOCK (sysdeps);
+
_dbus_assert(tmpdir != NULL);
return tmpdir;
return TRUE;
}
-/* Forward declaration of prototype used in next function */
-static dbus_bool_t
-_dbus_get_install_root(char *prefix, int len);
-
-/*
- * replaces the term DBUS_PREFIX in configure_time_path by the
- * current dbus installation directory. On unix this function is a noop
- *
- * @param configure_time_path
- * @return real path
- */
-const char *
-_dbus_replace_install_prefix (const char *configure_time_path)
-{
-#ifndef DBUS_PREFIX
- return configure_time_path;
-#else
- static char retval[1000];
- static char runtime_prefix[1000];
- int len = 1000;
- int i;
-
- if (!configure_time_path)
- return NULL;
-
- if ((!_dbus_get_install_root(runtime_prefix, len) ||
- strncmp (configure_time_path, DBUS_PREFIX "/",
- strlen (DBUS_PREFIX) + 1))) {
- strcat (retval, configure_time_path);
- return retval;
- }
-
- strcpy (retval, runtime_prefix);
- strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
-
- /* Somehow, in some situations, backslashes get collapsed in the string.
- * Since windows C library accepts both forward and backslashes as
- * path separators, convert all backslashes to forward slashes.
- */
-
- for(i = 0; retval[i] != '\0'; i++) {
- if(retval[i] == '\\')
- retval[i] = '/';
- }
- return retval;
-#endif
-}
-
-#if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
+#if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
#if defined(_MSC_VER) || defined(DBUS_WINCE)
# ifdef BACKTRACES
// named shm for dbus adress info (per user)
static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
-dbus_bool_t
-_dbus_get_install_root(char *prefix, int len);
-
static dbus_bool_t
_dbus_get_install_root_as_hash(DBusString *out)
{
return TRUE;
}
-
static dbus_bool_t
-_dbus_get_shm_name(DBusString *out,const char *scope)
+_dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
{
_dbus_string_init(out);
- _dbus_string_append(out,cDBusDaemonAddressInfo);
+ _dbus_string_append(out,basestring);
if (!scope)
{
return TRUE;
}
- else if (strcmp(scope,"install-path") == 0)
+ else if (strcmp(scope,"*install-path") == 0
+ // for 1.3 compatibility
+ || strcmp(scope,"install-path") == 0)
{
DBusString temp;
-
if (!_dbus_get_install_root_as_hash(&temp))
{
_dbus_string_free(out);
_dbus_string_append(out,"-");
_dbus_string_append(out,_dbus_string_get_const_data(&temp));
_dbus_string_free(&temp);
- return TRUE;
}
- else if (strlen(scope) > 0)
+ else if (strcmp(scope,"*user") == 0)
{
_dbus_string_append(out,"-");
- _dbus_string_append(out,scope);
- return TRUE;
+ if (!_dbus_append_user_from_current_process(out))
+ {
+ _dbus_string_free(out);
+ return FALSE;
+ }
}
- else
+ else if (strlen(scope) > 0)
{
+ _dbus_string_append(out,"-");
+ _dbus_string_append(out,scope);
return TRUE;
}
+ return TRUE;
}
static dbus_bool_t
-_dbus_get_mutex_name(DBusString *out,const char *scope)
+_dbus_get_shm_name (DBusString *out,const char *scope)
{
- _dbus_string_init(out);
- _dbus_string_append(out,cDBusDaemonMutex);
+ return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
+}
- if (!scope)
- {
- return TRUE;
- }
- else if (strcmp(scope,"install-path") == 0)
- {
- DBusString temp;
+static dbus_bool_t
+_dbus_get_mutex_name (DBusString *out,const char *scope)
+{
+ return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
+}
- if (!_dbus_get_install_root_as_hash(&temp))
- {
- _dbus_string_free(out);
- return FALSE;
- }
+dbus_bool_t
+_dbus_daemon_is_session_bus_address_published (const char *scope)
+{
+ HANDLE lock;
+ DBusString mutex_name;
- _dbus_string_append(out,"-");
- _dbus_string_append(out,_dbus_string_get_const_data(&temp));
- _dbus_string_free(&temp);
- return TRUE;
- }
- else if (strlen(scope) > 0)
+ if (!_dbus_get_mutex_name(&mutex_name,scope))
{
- _dbus_string_append(out,"-");
- _dbus_string_append(out,scope);
- return TRUE;
+ _dbus_string_free( &mutex_name );
+ return FALSE;
}
- else
+
+ if (hDBusDaemonMutex)
+ return TRUE;
+
+ // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
+ lock = _dbus_global_lock( cUniqueDBusInitMutex );
+
+ // 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_global_unlock( lock );
+
+ _dbus_string_free( &mutex_name );
+
+ if (hDBusDaemonMutex == NULL)
+ return FALSE;
+ if (GetLastError() == ERROR_ALREADY_EXISTS)
{
+ CloseHandle(hDBusDaemonMutex);
+ hDBusDaemonMutex = NULL;
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.
+ return FALSE;
}
dbus_bool_t
{
HANDLE lock;
char *shared_addr = NULL;
- DWORD ret;
- char addressInfo[1024];
DBusString shm_name;
DBusString mutex_name;
return FALSE;
}
- // before _dbus_global_lock to keep correct lock/release order
- hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
- ret = WaitForSingleObject( hDBusDaemonMutex, 1000 );
- if ( ret != WAIT_OBJECT_0 ) {
- _dbus_warn("Could not lock mutex %s (return code %d). daemon already running? Bus address not published.\n", _dbus_string_get_const_data(&mutex_name), ret );
- return FALSE;
- }
+ // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
+ lock = _dbus_global_lock( cUniqueDBusInitMutex );
+
+ 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)
+ {
+ _dbus_global_unlock( lock );
+ CloseHandle( hDBusDaemonMutex );
+ return FALSE;
+ }
if (!_dbus_get_shm_name(&shm_name,scope))
{
- _dbus_string_free( &mutex_name );
_dbus_string_free( &shm_name );
+ _dbus_global_unlock( lock );
return FALSE;
}
- // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
- lock = _dbus_global_lock( cUniqueDBusInitMutex );
-
// create shm
hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
UnmapViewOfFile( shared_addr );
_dbus_global_unlock( lock );
+ _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
+
_dbus_string_free( &shm_name );
- _dbus_string_free( &mutex_name );
return TRUE;
}
if (_dbus_daemon_already_runs(address,&shm_name,scope))
{
- _dbus_verbose("found already running dbus daemon\n");
+ _dbus_verbose( "found running dbus daemon at %s\n",
+ _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))
{
- printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
- printf ("or start the daemon manually\n\n");
- goto out;
+ // 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_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
+ retval = FALSE;
+ printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
+ printf ("or start the daemon manually\n\n");
+ goto out;
+ }
+ _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
+ }
}
+
// Create process
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
}
/**
- * return the relocated DATADIR
- *
- * @returns relocated DATADIR static string
- */
-
-static const char *
-_dbus_windows_get_datadir (void)
-{
- return _dbus_replace_install_prefix(DBUS_DATADIR);
-}
-
-#undef DBUS_DATADIR
-#define DBUS_DATADIR _dbus_windows_get_datadir ()
-
-
-#define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
-#define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
-
-/**
- * Returns the standard directories for a session bus to look for service
- * activation files
- *
- * On Windows this should be data directories:
- *
- * %CommonProgramFiles%/dbus
- *
- * and
- *
- * relocated DBUS_DATADIR
- *
- * @param dirs the directory list we are returning
- * @returns #FALSE on OOM
- */
-
-dbus_bool_t
-_dbus_get_standard_session_servicedirs (DBusList **dirs)
-{
- const char *common_progs;
- DBusString servicedir_path;
-
- if (!_dbus_string_init (&servicedir_path))
- return FALSE;
-
-#ifdef DBUS_WINCE
- {
- /* On Windows CE, we adjust datadir dynamically to installation location. */
- const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
-
- if (data_dir != NULL)
- {
- if (!_dbus_string_append (&servicedir_path, data_dir))
- goto oom;
-
- if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
- goto oom;
- }
- }
-#else
-/*
- the code for accessing services requires absolute base pathes
- in case DBUS_DATADIR is relative make it absolute
-*/
-#ifdef DBUS_WIN
- {
- DBusString p;
-
- _dbus_string_init_const (&p, DBUS_DATADIR);
-
- if (!_dbus_path_is_absolute (&p))
- {
- char install_root[1000];
- if (_dbus_get_install_root (install_root, sizeof(install_root)))
- if (!_dbus_string_append (&servicedir_path, install_root))
- goto oom;
- }
- }
-#endif
- if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
- goto oom;
-
- if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
- goto oom;
-#endif
-
- common_progs = _dbus_getenv ("CommonProgramFiles");
-
- if (common_progs != NULL)
- {
- if (!_dbus_string_append (&servicedir_path, common_progs))
- goto oom;
-
- if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
- goto oom;
- }
-
- if (!_dbus_split_paths_and_append (&servicedir_path,
- DBUS_STANDARD_SESSION_SERVICEDIR,
- dirs))
- goto oom;
-
- _dbus_string_free (&servicedir_path);
- return TRUE;
-
- oom:
- _dbus_string_free (&servicedir_path);
- return FALSE;
-}
-
-/**
- * Returns the standard directories for a system bus to look for service
- * activation files
- *
- * On UNIX this should be the standard xdg freedesktop.org data directories:
- *
- * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
- *
- * and
- *
- * DBUS_DATADIR
- *
- * On Windows there is no system bus and this function can return nothing.
- *
- * @param dirs the directory list we are returning
- * @returns #FALSE on OOM
- */
-
-dbus_bool_t
-_dbus_get_standard_system_servicedirs (DBusList **dirs)
-{
- *dirs = NULL;
- return TRUE;
-}
-
-_DBUS_DEFINE_GLOBAL_LOCK (atomic);
-
-/**
* Atomically increments an integer
*
* @param atomic pointer to the integer to increment
}
/**
+ * 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;
+}
+
+/**
* 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.
/**
* return the absolute path of the dbus installation
*
- * @param s buffer for installation path
+ * @param prefix buffer for installation path
* @param len length of buffer
* @returns #FALSE on failure
*/
-static dbus_bool_t
+dbus_bool_t
_dbus_get_install_root(char *prefix, int len)
{
//To find the prefix, we cut the filename and also \bin\ if present
- char* p = 0;
- int i;
DWORD pathLength;
char *lastSlash;
SetLastError( 0 );
return TRUE;
}
-/**
- * Append the absolute path of the system.conf file
- * (there is no system bus on Windows so this can just
- * return FALSE and print a warning or something)
- *
- * @param str the string to append to
- * @returns #FALSE if no memory
- */
-dbus_bool_t
-_dbus_append_system_config_file (DBusString *str)
-{
- return _dbus_get_config_file_name(str, "system.conf");
-}
-
-/**
- * Append the absolute path of the session.conf file.
- *
- * @param str the string to append to
- * @returns #FALSE if no memory
- */
-dbus_bool_t
-_dbus_append_session_config_file (DBusString *str)
-{
- return _dbus_get_config_file_name(str, "session.conf");
-}
-
/* See comment in dbus-sysdeps-unix.c */
dbus_bool_t
_dbus_lookup_session_address (dbus_bool_t *supported,
{
DBusString homedir;
DBusString dotdir;
- dbus_uid_t uid;
const char *homepath;
const char *homedrive;
_dbus_string_append(&homedir,homepath);
}
-#ifdef DBUS_BUILD_TESTS
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
{
const char *override;
}
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)
{
void
_dbus_win_warn_win_error (const char *message,
- int code)
+ unsigned long code)
{
DBusError error;
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;
+}
+
/** @} end of sysdeps-win */
/* tests in dbus-sysdeps-util.c */
projects / platform / upstream / dbus.git / blobdiff