| /* |
| * HAL devices support |
| * |
| * Copyright 2006 Alexandre Julliard |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <assert.h> |
| #include <errno.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <sys/time.h> |
| |
| #include "mountmgr.h" |
| #include "winnls.h" |
| #include "excpt.h" |
| |
| #include "wine/library.h" |
| #include "wine/exception.h" |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(mountmgr); |
| |
| #ifdef SONAME_LIBHAL |
| |
| #include <dbus/dbus.h> |
| #include <hal/libhal.h> |
| |
| #define DBUS_FUNCS \ |
| DO_FUNC(dbus_bus_get); \ |
| DO_FUNC(dbus_connection_close); \ |
| DO_FUNC(dbus_connection_read_write_dispatch); \ |
| DO_FUNC(dbus_error_init); \ |
| DO_FUNC(dbus_error_free); \ |
| DO_FUNC(dbus_error_is_set) |
| |
| #define HAL_FUNCS \ |
| DO_FUNC(libhal_ctx_free); \ |
| DO_FUNC(libhal_ctx_init); \ |
| DO_FUNC(libhal_ctx_new); \ |
| DO_FUNC(libhal_ctx_set_dbus_connection); \ |
| DO_FUNC(libhal_ctx_set_device_added); \ |
| DO_FUNC(libhal_ctx_set_device_property_modified); \ |
| DO_FUNC(libhal_ctx_set_device_removed); \ |
| DO_FUNC(libhal_ctx_shutdown); \ |
| DO_FUNC(libhal_device_get_property_bool); \ |
| DO_FUNC(libhal_device_get_property_string); \ |
| DO_FUNC(libhal_device_add_property_watch); \ |
| DO_FUNC(libhal_device_remove_property_watch); \ |
| DO_FUNC(libhal_free_string); \ |
| DO_FUNC(libhal_free_string_array); \ |
| DO_FUNC(libhal_get_all_devices) |
| |
| #define DO_FUNC(f) static typeof(f) * p_##f |
| DBUS_FUNCS; |
| HAL_FUNCS; |
| #undef DO_FUNC |
| |
| static BOOL load_functions(void) |
| { |
| void *hal_handle; |
| char error[128]; |
| |
| /* Load libhal with RTLD_GLOBAL so that the dbus symbols are available. |
| * We can't load libdbus directly since libhal may have been built against a |
| * different version but with the same soname. Binary compatibility is for wimps. */ |
| |
| if (!(hal_handle = wine_dlopen(SONAME_LIBHAL, RTLD_NOW|RTLD_GLOBAL, error, sizeof(error)))) |
| goto failed; |
| |
| #define DO_FUNC(f) if (!(p_##f = wine_dlsym( RTLD_DEFAULT, #f, error, sizeof(error) ))) goto failed |
| DBUS_FUNCS; |
| #undef DO_FUNC |
| |
| #define DO_FUNC(f) if (!(p_##f = wine_dlsym( hal_handle, #f, error, sizeof(error) ))) goto failed |
| HAL_FUNCS; |
| #undef DO_FUNC |
| |
| return TRUE; |
| |
| failed: |
| WARN( "failed to load HAL support: %s\n", error ); |
| return FALSE; |
| } |
| |
| static LONG WINAPI assert_fault(EXCEPTION_POINTERS *eptr) |
| { |
| if (eptr->ExceptionRecord->ExceptionCode == EXCEPTION_WINE_ASSERTION) |
| return EXCEPTION_EXECUTE_HANDLER; |
| return EXCEPTION_CONTINUE_SEARCH; |
| } |
| |
| static GUID *parse_uuid( GUID *guid, const char *str ) |
| { |
| /* standard uuid format */ |
| if (strlen(str) == 36) |
| { |
| UNICODE_STRING strW; |
| WCHAR buffer[39]; |
| |
| if (MultiByteToWideChar( CP_UNIXCP, 0, str, 36, buffer + 1, 36 )) |
| { |
| buffer[0] = '{'; |
| buffer[37] = '}'; |
| buffer[38] = 0; |
| RtlInitUnicodeString( &strW, buffer ); |
| if (!RtlGUIDFromString( &strW, guid )) return guid; |
| } |
| } |
| |
| /* check for xxxx-xxxx format (FAT serial number) */ |
| if (strlen(str) == 9 && str[4] == '-') |
| { |
| memset( guid, 0, sizeof(*guid) ); |
| if (sscanf( str, "%hx-%hx", &guid->Data2, &guid->Data3 ) == 2) return guid; |
| } |
| return NULL; |
| } |
| |
| /* HAL callback for new device */ |
| static void new_device( LibHalContext *ctx, const char *udi ) |
| { |
| DBusError error; |
| char *parent = NULL; |
| char *mount_point = NULL; |
| char *device = NULL; |
| char *type = NULL; |
| char *uuid_str = NULL; |
| GUID guid, *guid_ptr = NULL; |
| enum device_type drive_type; |
| |
| p_dbus_error_init( &error ); |
| |
| if (!(device = p_libhal_device_get_property_string( ctx, udi, "block.device", &error ))) |
| goto done; |
| |
| if (!(mount_point = p_libhal_device_get_property_string( ctx, udi, "volume.mount_point", &error ))) |
| goto done; |
| |
| if (!(parent = p_libhal_device_get_property_string( ctx, udi, "info.parent", &error ))) |
| goto done; |
| |
| if (!(uuid_str = p_libhal_device_get_property_string( ctx, udi, "volume.uuid", &error ))) |
| p_dbus_error_free( &error ); /* ignore error */ |
| else |
| guid_ptr = parse_uuid( &guid, uuid_str ); |
| |
| if (!(type = p_libhal_device_get_property_string( ctx, parent, "storage.drive_type", &error ))) |
| p_dbus_error_free( &error ); /* ignore error */ |
| |
| if (type && !strcmp( type, "cdrom" )) drive_type = DEVICE_CDROM; |
| else if (type && !strcmp( type, "floppy" )) drive_type = DEVICE_FLOPPY; |
| else drive_type = DEVICE_UNKNOWN; |
| |
| if (p_libhal_device_get_property_bool( ctx, parent, "storage.removable", &error )) |
| { |
| add_dos_device( -1, udi, device, mount_point, drive_type, guid_ptr ); |
| /* add property watch for mount point */ |
| p_libhal_device_add_property_watch( ctx, udi, &error ); |
| } |
| else if (guid_ptr) add_volume( udi, device, mount_point, DEVICE_HARDDISK_VOL, guid_ptr ); |
| |
| done: |
| if (type) p_libhal_free_string( type ); |
| if (parent) p_libhal_free_string( parent ); |
| if (device) p_libhal_free_string( device ); |
| if (uuid_str) p_libhal_free_string( uuid_str ); |
| if (mount_point) p_libhal_free_string( mount_point ); |
| p_dbus_error_free( &error ); |
| } |
| |
| /* HAL callback for removed device */ |
| static void removed_device( LibHalContext *ctx, const char *udi ) |
| { |
| DBusError error; |
| |
| TRACE( "removed %s\n", wine_dbgstr_a(udi) ); |
| |
| if (!remove_dos_device( -1, udi )) |
| { |
| p_dbus_error_init( &error ); |
| p_libhal_device_remove_property_watch( ctx, udi, &error ); |
| p_dbus_error_free( &error ); |
| } |
| else remove_volume( udi ); |
| } |
| |
| /* HAL callback for property changes */ |
| static void property_modified (LibHalContext *ctx, const char *udi, |
| const char *key, dbus_bool_t is_removed, dbus_bool_t is_added) |
| { |
| TRACE( "udi %s key %s %s\n", wine_dbgstr_a(udi), wine_dbgstr_a(key), |
| is_added ? "added" : is_removed ? "removed" : "modified" ); |
| |
| if (!strcmp( key, "volume.mount_point" )) new_device( ctx, udi ); |
| } |
| |
| |
| static DWORD WINAPI hal_thread( void *arg ) |
| { |
| DBusError error; |
| DBusConnection *dbc; |
| LibHalContext *ctx; |
| int i, num; |
| char **list; |
| |
| if (!(ctx = p_libhal_ctx_new())) return 1; |
| |
| p_dbus_error_init( &error ); |
| if (!(dbc = p_dbus_bus_get( DBUS_BUS_SYSTEM, &error ))) |
| { |
| WARN( "failed to get system dbus connection: %s\n", error.message ); |
| p_dbus_error_free( &error ); |
| return 1; |
| } |
| |
| p_libhal_ctx_set_dbus_connection( ctx, dbc ); |
| p_libhal_ctx_set_device_added( ctx, new_device ); |
| p_libhal_ctx_set_device_removed( ctx, removed_device ); |
| p_libhal_ctx_set_device_property_modified( ctx, property_modified ); |
| |
| if (!p_libhal_ctx_init( ctx, &error )) |
| { |
| WARN( "HAL context init failed: %s\n", error.message ); |
| p_dbus_error_free( &error ); |
| return 1; |
| } |
| |
| /* retrieve all existing devices */ |
| if (!(list = p_libhal_get_all_devices( ctx, &num, &error ))) p_dbus_error_free( &error ); |
| else |
| { |
| for (i = 0; i < num; i++) new_device( ctx, list[i] ); |
| p_libhal_free_string_array( list ); |
| } |
| |
| __TRY |
| { |
| while (p_dbus_connection_read_write_dispatch( dbc, -1 )) /* nothing */ ; |
| } |
| __EXCEPT( assert_fault ) |
| { |
| WARN( "dbus assertion failure, disabling HAL support\n" ); |
| return 1; |
| } |
| __ENDTRY; |
| |
| p_libhal_ctx_shutdown( ctx, &error ); |
| p_dbus_error_free( &error ); /* just in case */ |
| p_dbus_connection_close( dbc ); |
| p_libhal_ctx_free( ctx ); |
| return 0; |
| } |
| |
| void initialize_hal(void) |
| { |
| HANDLE handle; |
| |
| if (!load_functions()) return; |
| if (!(handle = CreateThread( NULL, 0, hal_thread, NULL, 0, NULL ))) return; |
| CloseHandle( handle ); |
| } |
| |
| #else /* SONAME_LIBHAL */ |
| |
| void initialize_hal(void) |
| { |
| TRACE( "Skipping, HAL support not compiled in\n" ); |
| } |
| |
| #endif /* SONAME_LIBHAL */ |