/*************************************************************************** * CVSID: $Id$ * * dbus.c : D-BUS interface of HAL daemon * * Copyright (C) 2003 David Zeuthen, * * 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 St, Fifth Floor, Boston, MA 02110-1301 USA * **************************************************************************/ #ifdef HAVE_CONFIG_H # include #endif #include #include #include #include #include #include #include #include #include #include "hald.h" #include "hald_dbus.h" #include "device.h" #include "device_store.h" #include "device_info.h" #include "logger.h" #include "osspec.h" #include "util.h" #include "hald_runner.h" #define HALD_DBUS_ADDRESS "unix:tmpdir=" HALD_SOCKET_DIR static DBusConnection *dbus_connection = NULL; static void raise_error (DBusConnection *connection, DBusMessage *in_reply_to, const char *error_name, char *format, ...) __attribute__((format (printf, 4, 5))); /** * @defgroup DaemonErrors Error conditions * @ingroup HalDaemon * @brief Various error messages the HAL daemon can raise * @{ */ /** Raise HAL error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param error_name D-Bus error name * @param format printf-style format for error message */ static void raise_error (DBusConnection *connection, DBusMessage *in_reply_to, const char *error_name, char *format, ...) { char buf[512]; DBusMessage *reply; va_list args; va_start(args, format); vsnprintf(buf, sizeof buf, format, args); va_end(args); HAL_WARNING ((buf)); reply = dbus_message_new_error (in_reply_to, error_name, buf); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); } /** Raise the org.freedesktop.Hal.NoSuchDevice error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param udi Unique device id given */ static void raise_no_such_device (DBusConnection *connection, DBusMessage *in_reply_to, const char *udi) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.NoSuchDevice", "No device with id %s", udi ); } /** Raise the org.freedesktop.Hal.NoSuchProperty error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param device_id Id of the device * @param key Key of the property that didn't exist */ static void raise_no_such_property (DBusConnection *connection, DBusMessage *in_reply_to, const char *device_id, const char *key) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.NoSuchProperty", "No property %s on device with id %s", key, device_id ); } /** Raise the org.freedesktop.Hal.TypeMismatch error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param device_id Id of the device * @param key Key of the property */ static void raise_property_type_error (DBusConnection *connection, DBusMessage *in_reply_to, const char *device_id, const char *key) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.TypeMismatch", "Type mismatch setting property %s on device with id %s", key, device_id ); } /** Raise the org.freedesktop.Hal.SyntaxError error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param method_name Name of the method that was invoked with * the wrong signature */ static void raise_syntax (DBusConnection *connection, DBusMessage *in_reply_to, const char *method_name) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.SyntaxError", "There is a syntax error in the invocation of the method %s", method_name ); } /** Raise the org.freedesktop.Hal.DeviceNotLocked error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param device device which isn't locked */ static void raise_device_not_locked (DBusConnection *connection, DBusMessage *in_reply_to, HalDevice *device) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.DeviceNotLocked", "The device %s is not locked", hal_device_get_udi (device) ); } /** Raise the org.freedesktop.Hal.DeviceAlreadyLocked error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param device device which isn't locked */ static void raise_device_already_locked (DBusConnection *connection, DBusMessage *in_reply_to, HalDevice *device) { DBusMessage *reply; const char *reason; reason = hal_device_property_get_string (device, "info.locked.reason"); HAL_WARNING (("Device %s is already locked: %s", hal_device_get_udi (device), reason)); reply = dbus_message_new_error (in_reply_to, "org.freedesktop.Hal.DeviceAlreadyLocked", reason); if (reply == NULL || !dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); } /** Raise the org.freedesktop.Hal.BranchAlreadyClaimed error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param udi branch which isn't claimed */ static void raise_branch_already_claimed (DBusConnection *connection, DBusMessage *in_reply_to, HalDevice *device) { DBusMessage *reply; const char *claim_service; claim_service = hal_device_property_get_string (device, "info.claimed.service"); HAL_WARNING (("Branch %s is already claimed by: %s", hal_device_get_udi (device), claim_service)); reply = dbus_message_new_error (in_reply_to, "org.freedesktop.Hal.BranchAlreadyClaimed", claim_service); if (reply == NULL || !dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); } /** Raise the org.freedesktop.Hal.BranchNotClaimed error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param udi branch which isn't claimed */ static void raise_branch_not_claimed (DBusConnection *connection, DBusMessage *in_reply_to, HalDevice *device) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.BranchNotClaimed", "The branch %s is not claimed", hal_device_get_udi (device) ); } /** Raise the org.freedesktop.Hal.PermissionDenied error * * @param connection D-Bus connection * @param in_reply_to message to report error on * @param message what you're not allowed to do */ static void raise_permission_denied (DBusConnection *connection, DBusMessage *in_reply_to, const char *reason) { raise_error ( connection, in_reply_to, "org.freedesktop.Hal.PermissionDenied", "Permission denied: %s", reason ); } /** @} */ /** * @defgroup ManagerInterface D-BUS interface org.freedesktop.Hal.Manager * @ingroup HalDaemon * @brief D-BUS interface for querying device objects * * @{ */ static gboolean foreach_device_get_udi (HalDeviceStore *store, HalDevice *device, gpointer user_data) { DBusMessageIter *iter = user_data; const char *udi; udi = hal_device_get_udi (device); dbus_message_iter_append_basic (iter, DBUS_TYPE_STRING, &udi); return TRUE; } /** Get all devices. * * 
 *  array{object_reference} Manager.GetAllDevices()
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult manager_get_all_devices (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusMessageIter iter_array; reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING, &iter_array); hal_device_store_foreach (hald_get_gdl (), foreach_device_get_udi, &iter_array); dbus_message_iter_close_container (&iter, &iter_array); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } typedef struct { const char *key; const char *value; DBusMessageIter *iter; } DeviceMatchInfo; static gboolean foreach_device_match_get_udi (HalDeviceStore *store, HalDevice *device, gpointer user_data) { DeviceMatchInfo *info = user_data; const char *dev_value; if (hal_device_property_get_type (device, info->key) != DBUS_TYPE_STRING) return TRUE; dev_value = hal_device_property_get_string (device, info->key); if (dev_value != NULL && strcmp (dev_value, info->value) == 0) { const char *udi; udi = hal_device_get_udi (device); dbus_message_iter_append_basic (info->iter, DBUS_TYPE_STRING, &udi); } return TRUE; } static gboolean foreach_device_match_get_udi_tdl (HalDeviceStore *store, HalDevice *device, gpointer user_data) { DeviceMatchInfo *info = user_data; const char *dev_value; /* skip devices in the TDL that hasn't got a real UDI yet */ if (strncmp (device->udi, "/org/freedesktop/Hal/devices/temp", sizeof ("/org/freedesktop/Hal/devices/temp")) == 0) return TRUE; if (hal_device_property_get_type (device, info->key) != DBUS_TYPE_STRING) return TRUE; dev_value = hal_device_property_get_string (device, info->key); if (dev_value != NULL && strcmp (dev_value, info->value) == 0) { const char *udi; udi = hal_device_get_udi (device); dbus_message_iter_append_basic (info->iter, DBUS_TYPE_STRING, &udi); } return TRUE; } /** Find devices in the GDL where a single string property matches a given * value. Also returns devices in the TDL that has a non-tmp UDI. * * 
 *  array{object_reference} Manager.FindDeviceStringMatch(string key,
 *                                                        string value)
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult manager_find_device_string_match (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusMessageIter iter_array; DBusError error; const char *key; const char *value; DeviceMatchInfo info; HAL_TRACE (("entering")); dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_STRING, &value, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Manager.FindDeviceStringMatch"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING, &iter_array); info.key = key; info.value = value; info.iter = &iter_array; hal_device_store_foreach (hald_get_gdl (), foreach_device_match_get_udi, &info); /* Also returns devices in the TDL that has a non-tmp UDI */ hal_device_store_foreach (hald_get_tdl (), foreach_device_match_get_udi_tdl, &info); dbus_message_iter_close_container (&iter, &iter_array); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } typedef struct { const char *capability; DBusMessageIter *iter; } DeviceCapabilityInfo; static gboolean foreach_device_by_capability (HalDeviceStore *store, HalDevice *device, gpointer user_data) { DeviceCapabilityInfo *info = (DeviceCapabilityInfo *) user_data; if (hal_device_has_capability (device, info->capability)) { dbus_message_iter_append_basic (info->iter, DBUS_TYPE_STRING, &(device->udi)); } return TRUE; } /** Find devices in the GDL with a given capability. * * 
 *  array{object_reference} Manager.FindDeviceByCapability(string capability)
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult manager_find_device_by_capability (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusMessageIter iter_array; DBusError error; const char *capability; DeviceCapabilityInfo info; HAL_TRACE (("entering")); dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &capability, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Manager.FindDeviceByCapability"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING, &iter_array); info.capability = capability; info.iter = &iter_array; hal_device_store_foreach (hald_get_gdl (), foreach_device_by_capability, &info); dbus_message_iter_close_container (&iter, &iter_array); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Determine if a device exists. * * 
 *  bool Manager.DeviceExists(string udi)
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult manager_device_exists (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; const char *udi; dbus_bool_t b; dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &udi, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Manager.DeviceExists"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); reply = dbus_message_new_method_return (message); dbus_message_iter_init_append (reply, &iter); b = d != NULL; dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &b); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Send signal DeviceAdded(string udi) on the org.freedesktop.Hal.Manager * interface on the object /org/freedesktop/Hal/Manager. * * @param device The HalDevice added */ void manager_send_signal_device_added (HalDevice *device) { const char *udi = hal_device_get_udi (device); DBusMessage *message; DBusMessageIter iter; if (dbus_connection == NULL) goto out; HAL_TRACE (("entering, udi=%s", udi)); message = dbus_message_new_signal ("/org/freedesktop/Hal/Manager", "org.freedesktop.Hal.Manager", "DeviceAdded"); dbus_message_iter_init_append (message, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &udi); if (!dbus_connection_send (dbus_connection, message, NULL)) DIE (("error broadcasting message")); dbus_message_unref (message); out: ; } /** Send signal DeviceRemoved(string udi) on the org.freedesktop.Hal.Manager * interface on the object /org/freedesktop/Hal/Manager. * * @param device The HalDevice removed */ void manager_send_signal_device_removed (HalDevice *device) { const char *udi = hal_device_get_udi (device); DBusMessage *message; DBusMessageIter iter; if (dbus_connection == NULL) goto out; HAL_TRACE (("entering, udi=%s", udi)); message = dbus_message_new_signal ("/org/freedesktop/Hal/Manager", "org.freedesktop.Hal.Manager", "DeviceRemoved"); dbus_message_iter_init_append (message, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &udi); if (!dbus_connection_send (dbus_connection, message, NULL)) DIE (("error broadcasting message")); dbus_message_unref (message); out: ; } /** Send signal NewCapability(string udi, string capability) on the * org.freedesktop.Hal.Manager interface on the object * /org/freedesktop/Hal/Manager. * * @param udi Unique Device Id * @param capability Capability */ void manager_send_signal_new_capability (HalDevice *device, const char *capability) { const char *udi = hal_device_get_udi (device); DBusMessage *message; DBusMessageIter iter; if (dbus_connection == NULL) goto out; HAL_TRACE (("entering, udi=%s, cap=%s", udi, capability)); message = dbus_message_new_signal ("/org/freedesktop/Hal/Manager", "org.freedesktop.Hal.Manager", "NewCapability"); dbus_message_iter_init_append (message, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &udi); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &capability); if (!dbus_connection_send (dbus_connection, message, NULL)) DIE (("error broadcasting message")); dbus_message_unref (message); out: ; } /** @} */ /** * @defgroup DeviceInterface D-BUS interface org.freedesktop.Hal.Device * @ingroup HalDaemon * @brief D-BUS interface for generic device operations * @{ */ static gboolean foreach_property_append (HalDevice *device, HalProperty *p, gpointer user_data) { DBusMessageIter *iter; DBusMessageIter iter_dict_entry; const char *key; int type; iter = (DBusMessageIter *)user_data; dbus_message_iter_open_container (iter, DBUS_TYPE_DICT_ENTRY, NULL, &iter_dict_entry); key = hal_property_get_key (p); type = hal_property_get_type (p); dbus_message_iter_append_basic (&iter_dict_entry, DBUS_TYPE_STRING, &key); switch (type) { case HAL_PROPERTY_TYPE_STRING: { DBusMessageIter iter_var; const char *v; v = hal_property_get_string (p); dbus_message_iter_open_container (&iter_dict_entry, DBUS_TYPE_VARIANT, DBUS_TYPE_STRING_AS_STRING, &iter_var); dbus_message_iter_append_basic (&iter_var, DBUS_TYPE_STRING, &v); dbus_message_iter_close_container (&iter_dict_entry, &iter_var); break; } case HAL_PROPERTY_TYPE_INT32: { DBusMessageIter iter_var; dbus_int32_t v; v = hal_property_get_int (p); dbus_message_iter_open_container (&iter_dict_entry, DBUS_TYPE_VARIANT, DBUS_TYPE_INT32_AS_STRING, &iter_var); dbus_message_iter_append_basic (&iter_var, DBUS_TYPE_INT32, &v); dbus_message_iter_close_container (&iter_dict_entry, &iter_var); break; } case HAL_PROPERTY_TYPE_UINT64: { DBusMessageIter iter_var; dbus_uint64_t v; v = hal_property_get_uint64 (p); dbus_message_iter_open_container (&iter_dict_entry, DBUS_TYPE_VARIANT, DBUS_TYPE_UINT64_AS_STRING, &iter_var); dbus_message_iter_append_basic (&iter_var, DBUS_TYPE_UINT64, &v); dbus_message_iter_close_container (&iter_dict_entry, &iter_var); break; } case HAL_PROPERTY_TYPE_DOUBLE: { DBusMessageIter iter_var; double v; v = hal_property_get_double (p); dbus_message_iter_open_container (&iter_dict_entry, DBUS_TYPE_VARIANT, DBUS_TYPE_DOUBLE_AS_STRING, &iter_var); dbus_message_iter_append_basic (&iter_var, DBUS_TYPE_DOUBLE, &v); dbus_message_iter_close_container (&iter_dict_entry, &iter_var); break; } case HAL_PROPERTY_TYPE_BOOLEAN: { DBusMessageIter iter_var; dbus_bool_t v; v = hal_property_get_bool (p); dbus_message_iter_open_container (&iter_dict_entry, DBUS_TYPE_VARIANT, DBUS_TYPE_BOOLEAN_AS_STRING, &iter_var); dbus_message_iter_append_basic (&iter_var, DBUS_TYPE_BOOLEAN, &v); dbus_message_iter_close_container (&iter_dict_entry, &iter_var); break; } case HAL_PROPERTY_TYPE_STRLIST: { DBusMessageIter iter_var, iter_array; GSList *iter; dbus_message_iter_open_container (&iter_dict_entry, DBUS_TYPE_VARIANT, DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING, &iter_var); dbus_message_iter_open_container (&iter_var, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING, &iter_array); for (iter = hal_property_get_strlist (p); iter != NULL; iter = iter->next) { const char *v; v = (const char *) iter->data; dbus_message_iter_append_basic (&iter_array, DBUS_TYPE_STRING, &v); } dbus_message_iter_close_container (&iter_var, &iter_array); dbus_message_iter_close_container (&iter_dict_entry, &iter_var); break; } default: HAL_WARNING (("Unknown property type 0x%04x", type)); break; } dbus_message_iter_close_container (iter, &iter_dict_entry); return TRUE; } /** Get all properties on a device. * * 
 *  map{string, any} Device.GetAllProperties()
 *
 *    raises org.freedesktop.Hal.NoSuchDevice
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_get_all_properties (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusMessageIter iter_dict; HalDevice *d; const char *udi; udi = dbus_message_get_path (message); HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &iter_dict); hal_device_property_foreach (d, foreach_property_append, &iter_dict); dbus_message_iter_close_container (&iter, &iter_dict); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } #ifdef sun #include static dbus_bool_t user_at_console(unsigned long uid) { struct stat st; return ((stat("/dev/console", &st) == 0) && (st.st_uid == uid)); } #endif /* sun */ static dbus_bool_t sender_has_privileges (DBusConnection *connection, DBusMessage *message) { DBusError error; unsigned long user_uid; const char *user_base_svc; dbus_bool_t ret; ret = FALSE; user_base_svc = dbus_message_get_sender (message); if (user_base_svc == NULL) { HAL_WARNING (("Cannot determine base service of caller")); goto out; } HAL_DEBUG (("base_svc = %s", user_base_svc)); dbus_error_init (&error); user_uid = dbus_bus_get_unix_user (connection, user_base_svc, &error); if (user_uid == (unsigned long) -1 || dbus_error_is_set (&error)) { HAL_WARNING (("Could not get uid for connection: %s %s", error.name, error.message)); dbus_error_free (&error); goto out; } HAL_INFO (("uid for caller is %ld", user_uid)); if (user_uid != 0 && user_uid != geteuid()) { #ifdef sun if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "Rescan")) { if (user_at_console(user_uid)) { ret = TRUE; goto out; } } #endif HAL_WARNING (("uid %d is not privileged", user_uid)); goto out; } ret = TRUE; out: return ret; } /** Set multiple properties on a device in an atomic fashion. * * 
 *  Device.GetAllProperties(map{string, any} properties)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ static DBusHandlerResult device_set_multiple_properties (DBusConnection *connection, DBusMessage *message, dbus_bool_t local_interface) { DBusMessage *reply; DBusMessageIter iter; DBusMessageIter dict_iter; HalDevice *d; const char *udi; udi = dbus_message_get_path (message); HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "SetProperty: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } dbus_message_iter_init (message, &iter); if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY && dbus_message_iter_get_element_type (&iter) != DBUS_TYPE_DICT_ENTRY) { HAL_ERROR (("error, expecting an array of dict entries", __FILE__, __LINE__)); raise_syntax (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_message_iter_recurse (&iter, &dict_iter); /* update atomically */ device_property_atomic_update_begin (); while (dbus_message_iter_get_arg_type (&dict_iter) == DBUS_TYPE_DICT_ENTRY) { DBusMessageIter dict_entry_iter, var_iter, array_iter; const char *key; int change_type; dbus_bool_t rc; dbus_message_iter_recurse (&dict_iter, &dict_entry_iter); dbus_message_iter_get_basic (&dict_entry_iter, &key); dbus_message_iter_next (&dict_entry_iter); dbus_message_iter_recurse (&dict_entry_iter, &var_iter); change_type = dbus_message_iter_get_arg_type (&var_iter); rc = FALSE; switch (change_type) { case DBUS_TYPE_ARRAY: if (dbus_message_iter_get_element_type (&var_iter) != DBUS_TYPE_STRING) { /* TODO: error */ } dbus_message_iter_recurse (&var_iter, &array_iter); hal_device_property_strlist_clear (d, key); while (dbus_message_iter_get_arg_type (&array_iter) == DBUS_TYPE_STRING) { const char *v; dbus_message_iter_get_basic (&array_iter, &v); HAL_INFO ((" strlist elem %s -> %s", key, v)); rc = hal_device_property_strlist_append (d, key, v); dbus_message_iter_next (&array_iter); } break; case DBUS_TYPE_STRING: { const char *v; dbus_message_iter_get_basic (&var_iter, &v); HAL_INFO (("%s -> %s", key, v)); rc = hal_device_property_set_string (d, key, v); break; } case DBUS_TYPE_INT32: { dbus_int32_t v; dbus_message_iter_get_basic (&var_iter, &v); HAL_INFO (("%s -> %d", key, v)); rc = hal_device_property_set_int (d, key, v); break; } case DBUS_TYPE_UINT64: { dbus_uint64_t v; dbus_message_iter_get_basic (&var_iter, &v); HAL_INFO (("%s -> %lld", key, v)); rc = hal_device_property_set_uint64 (d, key, v); break; } case DBUS_TYPE_DOUBLE: { double v; dbus_message_iter_get_basic (&var_iter, &v); HAL_INFO (("%s -> %g", key, v)); rc = hal_device_property_set_double (d, key, v); break; } case DBUS_TYPE_BOOLEAN: { gboolean v; dbus_message_iter_get_basic (&var_iter, &v); HAL_INFO (("%s -> %s", key, v ? "True" : "False")); rc = hal_device_property_set_bool (d, key, v); break; } default: /* TODO: error */ break; } /* TODO: error out on rc==FALSE? */ dbus_message_iter_next (&dict_iter); } device_property_atomic_update_end (); reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Get a property on a device. * * 
 *  any Device.GetProperty(string key)
 *  string Device.GetPropertyString(string key)
 *  int Device.GetPropertyInteger(string key)
 *  bool Device.GetPropertyBoolean(string key)
 *  double Device.GetPropertyDouble(string key)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *           org.freedesktop.Hal.NoSuchProperty
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_get_property (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; const char *udi; char *key; int type; HalProperty *p; udi = dbus_message_get_path (message); HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "GetProperty"); return DBUS_HANDLER_RESULT_HANDLED; } p = hal_device_property_find (d, key); if (p == NULL) { raise_no_such_property (connection, message, udi, key); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); type = hal_property_get_type (p); switch (type) { case HAL_PROPERTY_TYPE_STRING: { const char *s; s = hal_property_get_string (p); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &s); break; } case HAL_PROPERTY_TYPE_INT32: { dbus_int32_t i; i = hal_property_get_int (p); dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &i); break; } case HAL_PROPERTY_TYPE_UINT64: { dbus_uint64_t ul; ul = hal_property_get_uint64 (p); dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT64, &ul); break; } case HAL_PROPERTY_TYPE_DOUBLE: { double d; d = hal_property_get_double (p); dbus_message_iter_append_basic (&iter, DBUS_TYPE_DOUBLE, &d); break; } case HAL_PROPERTY_TYPE_BOOLEAN: { dbus_bool_t b; b = hal_property_get_bool (p); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &b); break; } case HAL_PROPERTY_TYPE_STRLIST: { GSList *l; DBusMessageIter iter_array; dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING, &iter_array); for (l = hal_property_get_strlist (p); l != NULL; l = g_slist_next (l)) { dbus_message_iter_append_basic (&iter_array, DBUS_TYPE_STRING, &(l->data)); } dbus_message_iter_close_container (&iter, &iter_array); } break; default: HAL_WARNING (("Unknown property type %d", type)); break; } if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Get the type of a property on a device. * * 
 *  int Device.GetPropertyType(string key)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *           org.freedesktop.Hal.NoSuchProperty
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_get_property_type (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; const char *udi; char *key; HalProperty *p; dbus_int32_t i; udi = dbus_message_get_path (message); HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "GetPropertyType"); return DBUS_HANDLER_RESULT_HANDLED; } p = hal_device_property_find (d, key); if (p == NULL) { raise_no_such_property (connection, message, udi, key); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); i = hal_property_get_type (p); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &i); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Set a property on a device. * * 
 *  void Device.SetProperty(string key, any value)
 *  void Device.SetPropertyString(string key, string value)
 *  void Device.SetPropertyInteger(string key, int value)
 *  void Device.SetPropertyBoolean(string key, bool value)
 *  void Device.SetPropertyDouble(string key, double value)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *           org.freedesktop.Hal.NoSuchProperty
 *           org.freedesktop.Hal.TypeMismatch
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_set_property (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; char *key; int type; dbus_bool_t rc; HalDevice *device; DBusMessageIter iter; DBusMessage *reply; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); dbus_message_iter_init (message, &iter); type = dbus_message_iter_get_arg_type (&iter); if (type != DBUS_TYPE_STRING) { raise_syntax (connection, message, "SetProperty"); return DBUS_HANDLER_RESULT_HANDLED; } dbus_message_iter_get_basic (&iter, &key); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "SetProperty: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_DEBUG (("udi=%s, key=%s", udi, key)); device = hal_device_store_find (hald_get_gdl (), udi); if (device == NULL) device = hal_device_store_find (hald_get_tdl (), udi); if (device == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_message_iter_next (&iter); /** @todo check permissions of the sender vs property to be modified */ type = dbus_message_iter_get_arg_type (&iter); rc = FALSE; switch (type) { case DBUS_TYPE_STRING: { const char *v; dbus_message_iter_get_basic (&iter, &v); rc = hal_device_property_set_string (device, key, v); break; } case DBUS_TYPE_INT32: { dbus_int32_t v; dbus_message_iter_get_basic (&iter, &v); rc = hal_device_property_set_int (device, key, v); break; } case DBUS_TYPE_UINT64: { dbus_uint64_t v; dbus_message_iter_get_basic (&iter, &v); rc = hal_device_property_set_uint64 (device, key, v); break; } case DBUS_TYPE_DOUBLE: { double v; dbus_message_iter_get_basic (&iter, &v); rc = hal_device_property_set_double (device, key, v); break; } case DBUS_TYPE_BOOLEAN: { dbus_bool_t v; dbus_message_iter_get_basic (&iter, &v); rc = hal_device_property_set_bool (device, key, v); break; } default: HAL_WARNING (("Unsupported property type %d", type)); break; } if (!rc) { raise_property_type_error (connection, message, udi, key); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** This function is used to modify the Capabilities property. The reason * for having a dedicated function is that the HAL daemon will broadcast * a signal on the Manager interface to tell applications that the device * have got a new capability. * * This is useful as capabilities can be merged after the device is created. * One example of this is networking cards under Linux 2.6; the net.ethernet * capability is not merged when the device is initially found by looking in * /sys/devices; it is merged when the /sys/classes tree is searched. * * Note that the signal is emitted every time this method is invoked even * though the capability already existed. This is useful in the above * scenario when the PCI class says ethernet networking card but we yet * don't have enough information to fill in the net.* and net.ethernet.* * fields since this only happens when we visit the /sys/classes tree. * * 
 *  void Device.AddCapability(string capability)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *    raises org.freedesktop.Hal.PermissionDenied, 
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_add_capability (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; const char *capability; HalDevice *d; DBusMessage *reply; DBusError error; HAL_TRACE (("entering")); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "AddCapability: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &capability, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "AddCapability"); return DBUS_HANDLER_RESULT_HANDLED; } hal_device_add_capability (d, capability); reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /* TODO: docs */ static DBusHandlerResult device_string_list_append_prepend (DBusConnection * connection, DBusMessage * message, dbus_bool_t do_prepend) { const char *udi; const char *key; const char *value; HalDevice *d; DBusMessage *reply; DBusError error; gboolean ret; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_STRING, &value, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, do_prepend ? "StringListPrepend" : "StringListAppend"); return DBUS_HANDLER_RESULT_HANDLED; } if (do_prepend) ret = hal_device_property_strlist_prepend (d, key, value); else ret = hal_device_property_strlist_append (d, key, value); if (!ret) { raise_property_type_error (connection, message, udi, key); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /* TODO: docs */ static DBusHandlerResult device_string_list_remove (DBusConnection * connection, DBusMessage * message) { const char *udi; const char *key; const char *value; HalDevice *d; DBusMessage *reply; DBusError error; gboolean ret; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_STRING, &value, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "StringListRemove"); return DBUS_HANDLER_RESULT_HANDLED; } ret = hal_device_property_strlist_remove (d, key, value); if (!ret) { raise_property_type_error (connection, message, udi, key); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Remove a property on a device. * * 
 *  void Device.RemoveProperty(string key)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *           org.freedesktop.Hal.NoSuchProperty
 *           org.freedesktop.Hal.PermissionDenied
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_remove_property (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; char *key; HalDevice *d; DBusMessage *reply; DBusError error; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "RemoveProperty: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "RemoveProperty"); return DBUS_HANDLER_RESULT_HANDLED; } if (!hal_device_property_remove (d, key)) { raise_no_such_property (connection, message, udi, key); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Determine if a property exists * * 
 *  bool Device.PropertyExists(string key)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_property_exists (DBusConnection * connection, DBusMessage * message) { const char *udi; char *key; HalDevice *d; DBusMessage *reply; DBusError error; DBusMessageIter iter; dbus_bool_t b; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "RemoveProperty"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); b = hal_device_has_property (d, key); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &b); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Determine if a device has a capability * * 
 *  bool Device.QueryCapability(string capability_name)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_query_capability (DBusConnection * connection, DBusMessage * message) { dbus_bool_t rc; const char *udi; GSList *caps; char *capability; HalDevice *d; DBusMessage *reply; DBusError error; DBusMessageIter iter; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &capability, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "QueryCapability"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); rc = FALSE; caps = hal_device_property_get_strlist (d, "info.capabilities"); if (caps != NULL) { GSList *iter; for (iter = caps; iter != NULL; iter=g_slist_next(iter)) { if (strcmp (iter->data, capability) == 0) { rc = TRUE; break; } } } dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &rc); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } static GHashTable *services_with_locks = NULL; /** Grab an advisory lock on a device. * * 
 *  bool Device.Lock(string reason)
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *           org.freedesktop.Hal.DeviceAlreadyLocked
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_lock (DBusConnection * connection, DBusMessage * message) { const char *udi; HalDevice *d; DBusMessage *reply; dbus_bool_t already_locked; DBusError error; char *reason; const char *sender; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } already_locked = hal_device_property_get_bool (d, "info.locked"); if (already_locked) { raise_device_already_locked (connection, message, d); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &reason, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Lock"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); sender = dbus_message_get_sender (message); hal_device_property_set_bool (d, "info.locked", TRUE); hal_device_property_set_string (d, "info.locked.reason", reason); hal_device_property_set_string (d, "info.locked.dbus_name", sender); if (services_with_locks == NULL) { services_with_locks = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref); } g_hash_table_insert (services_with_locks, g_strdup (sender), g_object_ref (d)); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Release an advisory lock on a device. * * 
 *  bool Device.Unlock()
 *
 *    raises org.freedesktop.Hal.NoSuchDevice, 
 *           org.freedesktop.Hal.DeviceNotLocked,
 *           org.freedesktop.Hal.PermissionDenied
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult device_unlock (DBusConnection * connection, DBusMessage * message) { dbus_bool_t rc; const char *udi; HalDevice *d; DBusMessage *reply; DBusError error; const char *sender; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Unlock"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); rc = hal_device_property_get_bool (d, "info.locked"); if (!rc) { raise_device_not_locked (connection, message, d); return DBUS_HANDLER_RESULT_HANDLED; } sender = dbus_message_get_sender (message); if (strcmp (sender, hal_device_property_get_string ( d, "info.locked.dbus_name")) != 0) { char *reason; reason = g_strdup_printf ("Service '%s' does not own the " "lock on %s", sender, hal_device_get_udi (d)); raise_permission_denied (connection, message, reason); g_free (reason); return DBUS_HANDLER_RESULT_HANDLED; } if (g_hash_table_lookup (services_with_locks, sender)) g_hash_table_remove (services_with_locks, sender); else { HAL_WARNING (("Service '%s' was not in the list of services " "with locks!", sender)); } hal_device_property_remove (d, "info.locked"); hal_device_property_remove (d, "info.locked.reason"); hal_device_property_remove (d, "info.locked.dbus_name"); /* FIXME? Pointless? */ if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } static GHashTable *services_with_claims = NULL; /** Claim a branch. * * 
 *  bool Manager.ClaimBranch(string udi, string claim_service)
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult manager_claim_branch (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; const char *udi; const char *claim_service; const char *sender; dbus_bool_t already_claimed; unsigned long uid; dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &udi, DBUS_TYPE_STRING, &claim_service, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Manager.ClaimBranch"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } already_claimed = hal_device_property_get_bool (d, "info.claimed"); if (already_claimed) { raise_branch_already_claimed (connection, message, d); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); sender = dbus_message_get_sender (message); dbus_error_init (&error); uid = dbus_bus_get_unix_user (connection, sender, &error); if (uid == (unsigned long) -1 || dbus_error_is_set (&error)) { HAL_WARNING (("Could not get uid for connection: %s %s", error.name, error.message)); dbus_error_free (&error); dbus_message_unref (reply); raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } hal_util_branch_claim (hald_get_gdl (), d, TRUE, claim_service, uid); hal_device_property_set_string (d, "info.claimed.dbus_name", sender); if (services_with_claims == NULL) { services_with_claims = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref); } g_hash_table_insert (services_with_claims, g_strdup (sender), g_object_ref (d)); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Unclaim a branch. * * 
 *  bool Manager.UnclaimBranch(string udi)
 *
* * @param connection D-BUS connection * @param message Message * @return What to do with the message */ DBusHandlerResult manager_unclaim_branch (DBusConnection * connection, DBusMessage * message) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; const char *udi; const char *claim_service; const char *sender; dbus_bool_t already_claimed; dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &udi, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Manager.UnclaimBranch"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_TRACE (("entering, udi=%s", udi)); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } already_claimed = hal_device_property_get_bool (d, "info.claimed"); if (!already_claimed) { raise_branch_not_claimed (connection, message, d); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (strcmp (sender, hal_device_property_get_string ( d, "info.claimed.dbus_name")) != 0) { char *reason; reason = g_strdup_printf ("Service '%s' does not own the " "claim on %s", sender, hal_device_get_udi (d)); raise_permission_denied (connection, message, reason); g_free (reason); return DBUS_HANDLER_RESULT_HANDLED; } if (g_hash_table_lookup (services_with_claims, sender)) g_hash_table_remove (services_with_claims, sender); else { HAL_WARNING (("Service '%s' was not in the list of services " "with claims!", sender)); } hal_util_branch_claim (hald_get_gdl (), d, FALSE, NULL, 0); hal_device_property_remove (d, "info.claimed.dbus_name"); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /** Counter for atomic updating */ static int atomic_count = 0; /** Number of updates pending */ static int num_pending_updates = 0; /** Structure for queing updates */ typedef struct PendingUpdate_s { char *udi; /**< udi of device */ char *key; /**< key of property; free when done */ dbus_bool_t removed; /**< true iff property was removed */ dbus_bool_t added; /**< true iff property was added */ struct PendingUpdate_s *next; /**< next update or #NULL */ } PendingUpdate; static PendingUpdate *pending_updates_head = NULL; /** Begin an atomic update - this is useful for updating several properties * in one go. * * Note that an atomic update is recursive - use with caution! */ void device_property_atomic_update_begin (void) { atomic_count++; } /** End an atomic update. * * Note that an atomic update is recursive - use with caution! */ void device_property_atomic_update_end (void) { PendingUpdate *pu_iter = NULL; PendingUpdate *pu_iter_next = NULL; PendingUpdate *pu_iter2 = NULL; --atomic_count; if (atomic_count < 0) { HAL_WARNING (("*** atomic_count = %d < 0 !!", atomic_count)); atomic_count = 0; } if (atomic_count == 0 && num_pending_updates > 0) { DBusMessage *message; DBusMessageIter iter; DBusMessageIter iter_array; for (pu_iter = pending_updates_head; pu_iter != NULL; pu_iter = pu_iter_next) { int num_updates_this; pu_iter_next = pu_iter->next; /* see if we've already processed this */ if (pu_iter->udi == NULL) goto already_processed; /* count number of updates for this device */ num_updates_this = 0; for (pu_iter2 = pu_iter; pu_iter2 != NULL; pu_iter2 = pu_iter2->next) { if (strcmp (pu_iter2->udi, pu_iter->udi) == 0) num_updates_this++; } /* prepare message */ message = dbus_message_new_signal (pu_iter->udi, "org.freedesktop.Hal.Device", "PropertyModified"); dbus_message_iter_init_append (message, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &num_updates_this); dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_STRUCT_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_BOOLEAN_AS_STRING DBUS_TYPE_BOOLEAN_AS_STRING DBUS_STRUCT_END_CHAR_AS_STRING, &iter_array); for (pu_iter2 = pu_iter; pu_iter2 != NULL; pu_iter2 = pu_iter2->next) { if (strcmp (pu_iter2->udi, pu_iter->udi) == 0) { DBusMessageIter iter_struct; dbus_message_iter_open_container (&iter_array, DBUS_TYPE_STRUCT, NULL, &iter_struct); dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &(pu_iter2->key)); dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_BOOLEAN, &(pu_iter2->removed)); dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_BOOLEAN, &(pu_iter2->added)); dbus_message_iter_close_container (&iter_array, &iter_struct); /* signal this is already processed */ g_free (pu_iter2->key); if (pu_iter2 != pu_iter) { g_free (pu_iter2->udi); pu_iter2->udi = NULL; } } } g_free (pu_iter->udi); dbus_message_iter_close_container (&iter, &iter_array); if (dbus_connection != NULL) { if (!dbus_connection_send (dbus_connection, message, NULL)) DIE (("error broadcasting message")); } dbus_message_unref (message); already_processed: g_free (pu_iter); } /* for all updates */ num_pending_updates = 0; pending_updates_head = NULL; } } void device_send_signal_property_modified (HalDevice *device, const char *key, dbus_bool_t added, dbus_bool_t removed) { const char *udi = hal_device_get_udi (device); DBusMessage *message; DBusMessageIter iter; /* HAL_INFO(("Entering, udi=%s, key=%s, in_gdl=%s, removed=%s added=%s", device->udi, key, in_gdl ? "true" : "false", removed ? "true" : "false", added ? "true" : "false")); */ if (atomic_count > 0) { PendingUpdate *pu; pu = g_new0 (PendingUpdate, 1); pu->udi = g_strdup (udi); pu->key = g_strdup (key); pu->removed = removed; pu->added = added; pu->next = pending_updates_head; pending_updates_head = pu; num_pending_updates++; } else { dbus_int32_t i; DBusMessageIter iter_struct; DBusMessageIter iter_array; if (dbus_connection == NULL) goto out; message = dbus_message_new_signal (udi, "org.freedesktop.Hal.Device", "PropertyModified"); dbus_message_iter_init_append (message, &iter); i = 1; dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &i); dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, DBUS_STRUCT_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_BOOLEAN_AS_STRING DBUS_TYPE_BOOLEAN_AS_STRING DBUS_STRUCT_END_CHAR_AS_STRING, &iter_array); dbus_message_iter_open_container (&iter_array, DBUS_TYPE_STRUCT, NULL, &iter_struct); dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &key); dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_BOOLEAN, &removed); dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_BOOLEAN, &added); dbus_message_iter_close_container (&iter_array, &iter_struct); dbus_message_iter_close_container (&iter, &iter_array); if (!dbus_connection_send (dbus_connection, message, NULL)) DIE (("error broadcasting message")); dbus_message_unref (message); } out: ; } /** Emits a condition on a device; the device has to be in the GDL for * this function to have effect. * * Is intended for non-continuous events on the device like * ProcesserOverheating, BlockDeviceGotDevice, e.g. conditions that * are exceptional and may not be inferred by looking at properties * (though some may). * * This function accepts a number of parameters that are passed along * in the D-BUS message. The recipient is supposed to extract the parameters * himself, by looking at the HAL specification. * * @param udi The UDI for this device * @param condition_name Name of condition * @param first_arg_type Type of the first argument * @param ... value of first argument, list of additional * type-value pairs. Must be terminated with * DBUS_TYPE_INVALID */ void device_send_signal_condition (HalDevice *device, const char *condition_name, const char *condition_details) { const char *udi = hal_device_get_udi (device); DBusMessage *message; DBusMessageIter iter; if (dbus_connection == NULL) goto out; message = dbus_message_new_signal (udi, "org.freedesktop.Hal.Device", "Condition"); dbus_message_iter_init_append (message, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &condition_name); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &condition_details); if (!dbus_connection_send (dbus_connection, message, NULL)) DIE (("error broadcasting message")); dbus_message_unref (message); out: return; } static gboolean reinit_dbus (gpointer user_data) { HAL_INFO (("entering!")); if (hald_dbus_init ()) return FALSE; else return TRUE; } static void service_deleted (DBusMessage *message) { char *old_service_name; char *new_service_name; HalDevice *d; if (!dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &old_service_name, DBUS_TYPE_STRING, &new_service_name, DBUS_TYPE_INVALID)) { HAL_ERROR (("Invalid NameOwnerChanged signal from bus!")); return; } if (services_with_locks != NULL) { d = g_hash_table_lookup (services_with_locks, new_service_name); if (d != NULL) { hal_device_property_remove (d, "info.locked"); hal_device_property_remove (d, "info.locked.reason"); hal_device_property_remove (d, "info.locked.dbus_name"); g_hash_table_remove (services_with_locks, new_service_name); } } if (services_with_claims != NULL) { d = g_hash_table_lookup (services_with_claims, new_service_name); if (d != NULL) { hal_util_branch_claim (hald_get_gdl (), d, FALSE, NULL, 0); hal_device_property_remove (d, "info.claimed.dbus_name"); g_hash_table_remove (services_with_claims, new_service_name); } } } static DBusHandlerResult device_rescan (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; HalDevice *device; DBusMessage *reply; DBusMessageIter iter; gboolean res; HAL_INFO (("entering, local_interface=%d", local_interface)); udi = dbus_message_get_path (message); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "Rescan: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_DEBUG (("udi=%s", udi)); device = hal_device_store_find (hald_get_gdl (), udi); if (device == NULL) device = hal_device_store_find (hald_get_tdl (), udi); if (device == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } res = osspec_device_rescan (device); reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &res); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } static DBusHandlerResult device_reprobe (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; HalDevice *device; DBusMessageIter iter; DBusMessage *reply; gboolean res; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "Reprobe: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_DEBUG (("udi=%s", udi)); device = hal_device_store_find (hald_get_gdl (), udi); if (device == NULL) device = hal_device_store_find (hald_get_tdl (), udi); if (device == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } res = osspec_device_reprobe (device); reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &res); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } static DBusHandlerResult device_emit_condition (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; HalDevice *device; DBusMessageIter iter; DBusMessage *reply; DBusError error; const char *condition_name; const char *condition_details; dbus_bool_t res; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); if (!local_interface) { raise_permission_denied (connection, message, "EmitCondition: only allowed for helpers"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_DEBUG (("udi=%s", udi)); dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &condition_name, DBUS_TYPE_STRING, &condition_details, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "EmitCondition"); return DBUS_HANDLER_RESULT_HANDLED; } device = hal_device_store_find (hald_get_gdl (), udi); if (device == NULL) device = hal_device_store_find (hald_get_tdl (), udi); if (device == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } device_send_signal_condition (device, condition_name, condition_details); res = TRUE; reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &res); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } typedef struct { DBusConnection *connection; char *interface_name; char *introspection_xml; char *udi; } HelperInterfaceHandler; static GSList *helper_interface_handlers = NULL; static DBusHandlerResult device_claim_interface (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; HalDevice *device; DBusMessageIter iter; DBusMessage *reply; DBusError error; const char *interface_name; const char *introspection_xml; dbus_bool_t res; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); if (!local_interface) { raise_permission_denied (connection, message, "ClaimInterface: only allowed for helpers"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_DEBUG (("udi=%s", udi)); dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &interface_name, DBUS_TYPE_STRING, &introspection_xml, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "ClaimInterface"); return DBUS_HANDLER_RESULT_HANDLED; } device = hal_device_store_find (hald_get_gdl (), udi); if (device == NULL) device = hal_device_store_find (hald_get_tdl (), udi); if (device == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } res = TRUE; HAL_INFO (("Local connection 0x%x to handle interface '%s' on udi '%s'", connection, interface_name, udi)); hal_device_property_strlist_add (device, "info.interfaces", interface_name); HelperInterfaceHandler *hih = g_new0 (HelperInterfaceHandler, 1); hih->connection = connection; hih->interface_name = g_strdup (interface_name); hih->introspection_xml = g_strdup (introspection_xml); hih->udi = g_strdup (udi); helper_interface_handlers = g_slist_append (helper_interface_handlers, hih); reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &res); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } static DBusHandlerResult addon_is_ready (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { const char *udi; HalDevice *device; DBusMessageIter iter; DBusMessage *reply; DBusError error; dbus_bool_t res; HAL_TRACE (("entering")); udi = dbus_message_get_path (message); if (!local_interface) { raise_permission_denied (connection, message, "AddonIsReady: only allowed for helpers"); return DBUS_HANDLER_RESULT_HANDLED; } HAL_DEBUG (("udi=%s", udi)); dbus_error_init (&error); if (!dbus_message_get_args (message, &error, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "AddonIsReady"); return DBUS_HANDLER_RESULT_HANDLED; } device = hal_device_store_find (hald_get_gdl (), udi); if (device == NULL) device = hal_device_store_find (hald_get_tdl (), udi); if (device == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } if (hal_device_inc_num_ready_addons (device)) { if (hal_device_are_all_addons_ready (device)) { manager_send_signal_device_added (device); } } res = TRUE; HAL_INFO (("AddonIsReady on udi '%s'", udi)); reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_BOOLEAN, &res); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /* * Create new device in tdl. Return temporary udi. */ DBusHandlerResult manager_new_device (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; gchar *udi; int i; struct timeval tv; dbus_error_init (&error); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "NewDevice: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); d = hal_device_new (); gettimeofday(&tv, NULL); for (i = 0; i < 1000000 ; i++) { udi = g_strdup_printf ("/org/freedesktop/Hal/devices/tmp%05x", ((unsigned) tv.tv_usec & 0xfffff)) + i; if (!hal_device_store_find (hald_get_tdl (), udi)) break; g_free (udi); udi = NULL; } if (!udi) { raise_error (connection, message, "org.freedesktop.Hal.NoSpace", "NewDevice: no space for device"); return DBUS_HANDLER_RESULT_HANDLED; } hal_device_set_udi (d, udi); hal_device_property_set_string (d, "info.udi", udi); hal_device_store_add (hald_get_tdl (), d); dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &udi); g_free (udi); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /* * Callout helper. */ static void manager_remove_done (HalDevice *d, gpointer userdata1, gpointer userdata2) { HAL_INFO (("Remove callouts completed udi=%s", d->udi)); if (!hal_device_store_remove (hald_get_gdl (), d)) { HAL_WARNING (("Error removing device")); } } /* * Remove device. Looks in gdl and tdl. */ DBusHandlerResult manager_remove (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; char *udi; int in_tdl = 0; dbus_error_init (&error); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "Remove: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &udi, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "Remove"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) { hal_device_store_find (hald_get_tdl (), udi); in_tdl = 1; } if (d == NULL) { raise_no_such_device (connection, message, udi); return DBUS_HANDLER_RESULT_HANDLED; } /* FIXME: * run "info.callouts.remove" ? * delete in gdl ? * (auto) stop "info.addons" ? */ if (!in_tdl) { hal_util_callout_device_remove (d, manager_remove_done, NULL, NULL); } hal_device_store_remove (in_tdl ? hald_get_tdl () : hald_get_gdl (), d); g_object_unref (d); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } /* * Callout helper. */ static void manager_commit_done (HalDevice *d, gpointer userdata1, gpointer userdata2) { HAL_INFO (("Add callouts completed udi=%s", d->udi)); } /* * Preprobing helper. */ static void manager_commit_preprobing_done (HalDevice *d, gpointer userdata1, gpointer userdata2) { if (hal_device_property_get_bool (d, "info.ignore")) { /* Leave the device here with info.ignore==TRUE so we won't pick up children * Also remove category and all capabilities */ hal_device_property_remove (d, "info.category"); hal_device_property_remove (d, "info.capabilities"); hal_device_property_set_string (d, "info.udi", "/org/freedesktop/Hal/devices/ignored-device"); hal_device_property_set_string (d, "info.product", "Ignored Device"); HAL_INFO (("Preprobing merged info.ignore==TRUE")); return; } /* Merge properties from .fdi files */ di_search_and_merge (d, DEVICE_INFO_TYPE_INFORMATION); di_search_and_merge (d, DEVICE_INFO_TYPE_POLICY); hal_util_callout_device_add (d, manager_commit_done, NULL, NULL); } /* * Move device from tdl to gdl. Runs helpers and callouts. */ DBusHandlerResult manager_commit_to_gdl (DBusConnection * connection, DBusMessage * message, dbus_bool_t local_interface) { DBusMessage *reply; DBusMessageIter iter; DBusError error; HalDevice *d; char udi[256], *udi0, *tmp_udi; dbus_error_init (&error); if (!local_interface && !sender_has_privileges (connection, message)) { raise_permission_denied (connection, message, "CommitToGdl: not privileged"); return DBUS_HANDLER_RESULT_HANDLED; } if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING, &tmp_udi, DBUS_TYPE_STRING, &udi0, DBUS_TYPE_INVALID)) { raise_syntax (connection, message, "CommitToGdl"); return DBUS_HANDLER_RESULT_HANDLED; } reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); /* look it up in tdl */ d = hal_device_store_find (hald_get_tdl (), tmp_udi); if (d == NULL) { raise_no_such_device (connection, message, tmp_udi); return DBUS_HANDLER_RESULT_HANDLED; } /* sanity check & avoid races */ hal_util_compute_udi (hald_get_gdl (), udi, sizeof udi, "%s", udi0); if (hal_device_store_find (hald_get_gdl (), udi)) { /* loose it */ hal_device_store_remove (hald_get_tdl (), d); g_object_unref (d); raise_error (connection, message, "org.freedesktop.Hal.DeviceExists", "CommitToGdl: Device exists: %s", udi); return DBUS_HANDLER_RESULT_HANDLED; } /* set new udi */ hal_device_property_remove (d, "info.udi"); hal_device_set_udi (d, udi); hal_device_property_set_string (d, "info.udi", udi); /* FIXME: * 'RequireEnable' property? * fdi "preprobe"? * run "info.callouts.preprobe"? * remove "info.ignore" devices? * fdi "information"? * fdi "policy"? * run "info.callouts.add"? * tdl -> gdl? * (auto) start "info.addons"? */ /* Process preprobe fdi files */ di_search_and_merge (d, DEVICE_INFO_TYPE_PREPROBE); hal_util_callout_device_preprobe (d, manager_commit_preprobing_done, NULL, NULL); /* move from tdl to gdl */ hal_device_store_remove (hald_get_tdl (), d); hal_device_store_add (hald_get_gdl (), d); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } typedef struct { char *udi; char *execpath; char **extra_env; char *mstdin; char *member; char *interface; DBusMessage *message; DBusConnection *connection; } MethodInvocation; static void hald_exec_method_cb (HalDevice *d, guint32 exit_type, gint return_code, gchar **error, gpointer data1, gpointer data2); static void hald_exec_method_free_mi (MethodInvocation *mi) { /* hald_runner_run_method() assumes ownership of mi->message.. so we don't free it here */ g_free (mi->udi); g_free (mi->execpath); g_strfreev (mi->extra_env); g_free (mi->mstdin); g_free (mi->member); g_free (mi->interface); g_free (mi); } /* returns FALSE if we don't actually invoke anything */ static gboolean hald_exec_method_do_invocation (MethodInvocation *mi) { gboolean ret; HalDevice *d; ret = FALSE; d = hal_device_store_find (hald_get_gdl (), mi->udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), mi->udi); if (d != NULL) { /* no timeout */ hald_runner_run_method(d, mi->execpath, mi->extra_env, mi->mstdin, TRUE, 0, hald_exec_method_cb, (gpointer) mi->message, (gpointer) mi->connection); ret = TRUE; } else { HAL_WARNING (("In-queue method call on non-existant device")); raise_no_such_device (mi->connection, mi->message, mi->udi); } return ret; } static GHashTable *udi_to_method_queue = NULL; gboolean device_is_executing_method (HalDevice *d, const char *interface_name, const char *method_name) { gpointer origkey; gboolean ret; GList *queue; ret = FALSE; if (g_hash_table_lookup_extended (udi_to_method_queue, d->udi, &origkey, (gpointer) &queue)) { if (queue != NULL) { MethodInvocation *mi; mi = (MethodInvocation *) queue->data; if ((strcmp (mi->interface, interface_name) == 0) && (strcmp (mi->member, method_name) == 0)) { ret = TRUE; } } ret = TRUE; } return ret; } static void hald_exec_method_process_queue (const char *udi); static void hald_exec_method_enqueue (MethodInvocation *mi) { gpointer origkey; GList *queue; if (udi_to_method_queue == NULL) { udi_to_method_queue = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); } if (g_hash_table_lookup_extended (udi_to_method_queue, mi->udi, &origkey, (gpointer) &queue)) { HAL_INFO (("enqueue")); queue = g_list_append (queue, mi); g_hash_table_replace (udi_to_method_queue, g_strdup (mi->udi), queue); } else { HAL_INFO (("no need to enqueue")); queue = g_list_append (NULL, mi); g_hash_table_insert (udi_to_method_queue, g_strdup (mi->udi), queue); hald_exec_method_do_invocation (mi); } } static void hald_exec_method_process_queue (const char *udi) { gpointer origkey; GList *queue; MethodInvocation *mi; if (g_hash_table_lookup_extended (udi_to_method_queue, udi, &origkey, (gpointer) &queue)) { /* clean the top of the list */ if (queue != NULL) { mi = (MethodInvocation *) queue->data; queue = g_list_delete_link (queue, queue); if (queue == NULL) { g_hash_table_remove (udi_to_method_queue, udi); HAL_INFO (("No more methods in queue")); } /* if method was Volume.Unmount() then refresh mount state */ if (strcmp (mi->interface, "org.freedesktop.Hal.Device.Volume") == 0 && strcmp (mi->member, "Unmount") == 0) { HalDevice *d; HAL_INFO (("Refreshing mount state for %s since Unmount() completed", mi->udi)); d = hal_device_store_find (hald_get_gdl (), mi->udi); if (d == NULL) { d = hal_device_store_find (hald_get_tdl (), mi->udi); } if (d != NULL) { osspec_refresh_mount_state_for_block_device (d); } else { HAL_WARNING ((" Cannot find device object for %s", mi->udi)); } } hald_exec_method_free_mi (mi); } /* process the rest of the list */ if (queue != NULL) { HAL_INFO (("Execing next method in queue")); g_hash_table_replace (udi_to_method_queue, g_strdup (udi), queue); mi = (MethodInvocation *) queue->data; if (!hald_exec_method_do_invocation (mi)) { /* the device went away before we got to it... */ hald_exec_method_process_queue (mi->udi); } } } } static void hald_exec_method_cb (HalDevice *d, guint32 exit_type, gint return_code, gchar **error, gpointer data1, gpointer data2) { dbus_uint32_t result; DBusMessage *reply = NULL; DBusMessage *message; DBusMessageIter iter; DBusConnection *conn; gchar *exp_name = NULL; gchar *exp_detail = NULL; hald_exec_method_process_queue (d->udi); message = (DBusMessage *) data1; conn = (DBusConnection *) data2; if (exit_type == HALD_RUN_SUCCESS && error != NULL && error[0] != NULL && error[1] != NULL) { exp_name = error[0]; if (error[0] != NULL) { exp_detail = error[1]; } HAL_INFO (("failed with '%s' '%s'", exp_name, exp_detail)); } if (exit_type != HALD_RUN_SUCCESS) { reply = dbus_message_new_error (message, "org.freedesktop.Hal.Device.UnknownError", "An unknown error occured"); if (conn != NULL) { if (!dbus_connection_send (conn, reply, NULL)) DIE (("No memory")); } dbus_message_unref (reply); } else if (exp_name != NULL && exp_detail != NULL) { reply = dbus_message_new_error (message, exp_name, exp_detail); if (reply == NULL) { /* error name may be invalid - assume caller fucked up and use a generic HAL error name */ reply = dbus_message_new_error (message, "org.freedesktop.Hal.Device.UnknownError", "An unknown error occured"); if (reply == NULL) { DIE (("No memory")); } } if (conn != NULL) { if (!dbus_connection_send (conn, reply, NULL)) DIE (("No memory")); } dbus_message_unref (reply); } else { result = (dbus_uint32_t) return_code; reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); dbus_message_iter_init_append (reply, &iter); dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &result); if (conn != NULL) { if (!dbus_connection_send (conn, reply, NULL)) DIE (("No memory")); } dbus_message_unref (reply); } dbus_message_unref (message); } static DBusHandlerResult hald_exec_method (HalDevice *d, DBusConnection *connection, dbus_bool_t local_interface, DBusMessage *message, const char *execpath) { int type; GString *stdin_str; DBusMessageIter iter; char *extra_env[3]; char uid_export[128]; char sender_export[128]; MethodInvocation *mi; /* add calling uid */ extra_env[0] = NULL; extra_env[1] = NULL; if (local_interface) { extra_env[0] = "HAL_METHOD_INVOKED_BY_UID=0"; extra_env[1] = "HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME=0"; } else { const char *sender; sender = dbus_message_get_sender (message); if (sender != NULL) { DBusError error; unsigned long uid; dbus_error_init (&error); uid = dbus_bus_get_unix_user (connection, sender, &error); if (!dbus_error_is_set (&error)) { sprintf (uid_export, "HAL_METHOD_INVOKED_BY_UID=%lu", uid); extra_env[0] = uid_export; } snprintf (sender_export, sizeof (sender_export), "HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME=%s", sender); extra_env[1] = sender_export; } } if (extra_env[0] == NULL) extra_env[0] = "HAL_METHOD_INVOKED_BY_UID=nobody"; if (extra_env[1] == NULL) extra_env[1] = "HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME=0"; extra_env[2] = NULL; /* prepare stdin with parameters */ stdin_str = g_string_sized_new (256); /* default size for passing params; can grow */ dbus_message_iter_init (message, &iter); while ((type = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID) { switch (type) { case DBUS_TYPE_BYTE: { unsigned char value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%u", value); break; } case DBUS_TYPE_INT16: { dbus_int16_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%d", value); break; } case DBUS_TYPE_UINT16: { dbus_uint16_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%u", value); break; } case DBUS_TYPE_INT32: { dbus_int32_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%d", value); break; } case DBUS_TYPE_UINT32: { dbus_uint32_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%u", value); break; } case DBUS_TYPE_INT64: { dbus_int64_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%lld", (long long int) value); break; } case DBUS_TYPE_UINT64: { dbus_uint64_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%llu", (long long unsigned int) value); break; } case DBUS_TYPE_DOUBLE: { double value; dbus_message_iter_get_basic (&iter, &value); g_string_append_printf (stdin_str, "%g", value); break; } case DBUS_TYPE_BOOLEAN: { dbus_bool_t value; dbus_message_iter_get_basic (&iter, &value); g_string_append (stdin_str, value ? "true" : "false"); break; } case DBUS_TYPE_STRING: { char *value; dbus_message_iter_get_basic (&iter, &value); g_string_append (stdin_str, value); break; } case DBUS_TYPE_ARRAY: { DBusMessageIter iter_strlist; if (dbus_message_iter_get_element_type (&iter) != DBUS_TYPE_STRING) goto error; dbus_message_iter_recurse (&iter, &iter_strlist); while (dbus_message_iter_get_arg_type (&iter_strlist) == DBUS_TYPE_STRING) { const char *value; dbus_message_iter_get_basic (&iter_strlist, &value); g_string_append (stdin_str, value); g_string_append (stdin_str, "\t"); dbus_message_iter_next(&iter_strlist); } break; } default: goto error; } g_string_append_c (stdin_str, '\n'); dbus_message_iter_next (&iter); } mi = g_new0 (MethodInvocation, 1); mi->udi = g_strdup (d->udi); mi->execpath = g_strdup (execpath); mi->extra_env = g_strdupv (extra_env); mi->mstdin = g_strdup (stdin_str->str); mi->message = message; mi->connection = connection; mi->member = g_strdup (dbus_message_get_member (message)); mi->interface = g_strdup (dbus_message_get_interface (message)); hald_exec_method_enqueue (mi); dbus_message_ref (message); g_string_free (stdin_str, TRUE); return DBUS_HANDLER_RESULT_HANDLED; error: g_string_free (stdin_str, TRUE); return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; } static gboolean foreach_device_get_xml_node (HalDeviceStore *store, HalDevice *device, gpointer user_data) { GString *xml = user_data; const char *udi, *name; udi = hal_device_get_udi (device); name = strrchr(udi, '/')+1; xml = g_string_append(xml, " \n"); return TRUE; } static DBusHandlerResult do_introspect (DBusConnection *connection, DBusMessage *message, dbus_bool_t local_interface) { const char *path; DBusMessage *reply; GString *xml; char *xml_string; HAL_TRACE (("entering do_introspect")); path = dbus_message_get_path (message); xml = g_string_new ("\n" "\n" " \n" " \n" " \n" " \n" " \n"); if (strcmp (path, "/") == 0) { xml = g_string_append (xml, " \n"); } else if (strcmp (path, "/org") == 0) { xml = g_string_append (xml, " \n"); } else if (strcmp (path, "/org/freedesktop") == 0) { xml = g_string_append (xml, " \n"); } else if (strcmp (path, "/org/freedesktop/Hal") == 0) { xml = g_string_append (xml, " \n" " \n"); } else if (strcmp (path, "/org/freedesktop/Hal/devices") == 0) { hal_device_store_foreach (hald_get_gdl (), foreach_device_get_xml_node, xml); } else if (strcmp (path, "/org/freedesktop/Hal/Manager") == 0) { xml = g_string_append (xml, " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n"); } else { HalDevice *d; d = hal_device_store_find (hald_get_gdl (), path); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), path); if (d == NULL) { raise_no_such_device (connection, message, path); return DBUS_HANDLER_RESULT_HANDLED; } xml = g_string_append (xml, " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n"); GSList *interfaces; GSList *i; interfaces = hal_device_property_get_strlist (d, "info.interfaces"); for (i = interfaces; i != NULL; i = g_slist_next (i)) { const char *ifname = (const char *) i->data; char *method_names_prop; char *method_signatures_prop; char *method_argnames_prop; GSList *method_names; GSList *method_signatures; GSList *method_argnames; GSList *j; GSList *k; GSList *l; g_string_append_printf (xml, " \n", ifname); method_names_prop = g_strdup_printf ("%s.method_names", ifname); method_signatures_prop = g_strdup_printf ("%s.method_signatures", ifname); method_argnames_prop = g_strdup_printf ("%s.method_argnames", ifname); method_names = hal_device_property_get_strlist (d, method_names_prop); method_signatures = hal_device_property_get_strlist (d, method_signatures_prop); method_argnames = hal_device_property_get_strlist (d, method_argnames_prop); /* consult local list */ if (method_names == NULL) { GSList *i; for (i = helper_interface_handlers; i != NULL; i = g_slist_next (i)) { HelperInterfaceHandler *hih = i->data; if (strcmp (hih->udi, path) == 0) { xml = g_string_append (xml, hih->introspection_xml); } } } for (j = method_names, k = method_signatures, l = method_argnames; j != NULL && k != NULL && l != NULL; j = g_slist_next (j), k = g_slist_next (k), l = g_slist_next (l)) { const char *name; const char *sig; const char *argnames; char **args; unsigned int n; unsigned int m; name = j->data; sig = k->data; argnames = l->data; args = g_strsplit (argnames, " ", 0); g_string_append_printf (xml, " \n", name); for (n = 0, m = 0; n < strlen (sig) && args[m] != NULL; n++, m++) { switch (sig[n]) { case 'a': if (n == strlen (sig) - 1) { HAL_WARNING (("Broken signature for method %s " "on interface %s for object %s", name, ifname, path)); continue; } g_string_append_printf ( xml, " \n", args[m], sig[n + 1]); n++; break; default: g_string_append_printf ( xml, " \n", args[m], sig[n]); break; } } xml = g_string_append ( xml, " \n"); xml = g_string_append ( xml, " \n"); } xml = g_string_append (xml, " \n"); g_free (method_names_prop); g_free (method_signatures_prop); g_free (method_argnames_prop); } } reply = dbus_message_new_method_return (message); xml = g_string_append (xml, "\n"); xml_string = g_string_free (xml, FALSE); dbus_message_append_args (reply, DBUS_TYPE_STRING, &xml_string, DBUS_TYPE_INVALID); g_free (xml_string); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } static void reply_from_fwd_message (DBusPendingCall *pending_call, void *user_data) { DBusMessage *reply_from_addon; DBusMessage *method_from_caller; DBusMessage *reply; /*HAL_INFO (("in reply_from_fwd_message : user_data = 0x%x", user_data));*/ method_from_caller = (DBusMessage *) user_data; reply_from_addon = dbus_pending_call_steal_reply (pending_call); reply = dbus_message_copy (reply_from_addon); dbus_message_set_destination (reply, dbus_message_get_sender (method_from_caller)); dbus_message_set_reply_serial (reply, dbus_message_get_serial (method_from_caller)); if (dbus_connection != NULL) dbus_connection_send (dbus_connection, reply, NULL); dbus_message_unref (reply_from_addon); dbus_message_unref (reply); dbus_message_unref (method_from_caller); dbus_pending_call_unref (pending_call); } static DBusHandlerResult hald_dbus_filter_handle_methods (DBusConnection *connection, DBusMessage *message, void *user_data, dbus_bool_t local_interface) { /*HAL_INFO (("connection=0x%x obj_path=%s interface=%s method=%s local_interface=%d", connection, dbus_message_get_path (message), dbus_message_get_interface (message), dbus_message_get_member (message), local_interface));*/ if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "GetAllDevices") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_get_all_devices (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "DeviceExists") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_device_exists (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "FindDeviceStringMatch") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_find_device_string_match (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "FindDeviceByCapability") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_find_device_by_capability (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "ClaimBranch") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_claim_branch (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "UnclaimBranch") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_unclaim_branch (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "NewDevice") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_new_device (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "Remove") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_remove (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Manager", "CommitToGdl") && strcmp (dbus_message_get_path (message), "/org/freedesktop/Hal/Manager") == 0) { return manager_commit_to_gdl (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetAllProperties")) { return device_get_all_properties (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "SetMultipleProperties")) { return device_set_multiple_properties (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetProperty")) { return device_get_property (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetPropertyString")) { return device_get_property (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetPropertyStringList")) { return device_get_property (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetPropertyInteger")) { return device_get_property (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetPropertyBoolean")) { return device_get_property (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetPropertyDouble")) { return device_get_property (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "SetProperty")) { return device_set_property (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "SetPropertyString")) { return device_set_property (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "SetPropertyInteger")) { return device_set_property (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "SetPropertyBoolean")) { return device_set_property (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "SetPropertyDouble")) { return device_set_property (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "RemoveProperty")) { return device_remove_property (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "GetPropertyType")) { return device_get_property_type (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "PropertyExists")) { return device_property_exists (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "AddCapability")) { return device_add_capability (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "QueryCapability")) { return device_query_capability (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "Lock")) { return device_lock (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "Unlock")) { return device_unlock (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "StringListAppend")) { return device_string_list_append_prepend (connection, message, FALSE); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "StringListPrepend")) { return device_string_list_append_prepend (connection, message, TRUE); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "StringListRemove")) { return device_string_list_remove (connection, message); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "Rescan")) { return device_rescan (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "Reprobe")) { return device_reprobe (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "EmitCondition")) { return device_emit_condition (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "ClaimInterface")) { return device_claim_interface (connection, message, local_interface); #if 0 } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "ReleaseInterface")) { return device_release_interface (connection, message, local_interface); #endif } else if (dbus_message_is_method_call (message, "org.freedesktop.Hal.Device", "AddonIsReady")) { return addon_is_ready (connection, message, local_interface); } else if (dbus_message_is_method_call (message, "org.freedesktop.DBus.Introspectable", "Introspect")) { return do_introspect (connection, message, local_interface); } else { const char *interface; const char *udi; const char *method; const char *signature; HalDevice *d; /* check for device-specific interfaces that individual objects may support */ udi = dbus_message_get_path (message); interface = dbus_message_get_interface (message); method = dbus_message_get_member (message); signature = dbus_message_get_signature (message); d = NULL; if (udi != NULL) { d = hal_device_store_find (hald_get_gdl (), udi); if (d == NULL) d = hal_device_store_find (hald_get_tdl (), udi); } if (d != NULL && interface != NULL) { GSList *i; for (i = helper_interface_handlers; i != NULL; i = g_slist_next (i)) { HelperInterfaceHandler *hih = i->data; if (strcmp (hih->udi, udi) == 0 && strcmp (hih->interface_name, interface) == 0) { DBusPendingCall *pending_call; DBusMessage *copy; /*HAL_INFO (("forwarding method to connection 0x%x", hih->connection));*/ dbus_message_ref (message); /* send a copy of the message */ copy = dbus_message_copy (message); if (!dbus_connection_send_with_reply (hih->connection, copy, &pending_call, /*-1*/ 8000)) { /* TODO: handle error */ } else { /*HAL_INFO (("connection=%x message=%x", connection, message));*/ dbus_pending_call_set_notify (pending_call, reply_from_fwd_message, (void *) message, NULL); } dbus_message_unref (copy); return DBUS_HANDLER_RESULT_HANDLED; } } } if (d != NULL && interface != NULL && method != NULL && signature != NULL) { GSList *interfaces; GSList *i; interfaces = hal_device_property_get_strlist (d, "info.interfaces"); for (i = interfaces; i != NULL; i = g_slist_next (i)) { const char *ifname = (const char *) i->data; if (strcmp (ifname, interface) == 0) { guint num; GSList *method_names; char *s; s = g_strdup_printf ("%s.method_names", interface); method_names = hal_device_property_get_strlist (d, s); g_free (s); for (i = method_names, num = 0; i != NULL; i = g_slist_next (i), num++) { const char *methodname = (const char *) i->data; if (strcmp (methodname, method) == 0) { const char *execpath; const char *sig; s = g_strdup_printf ("%s.method_execpaths", interface); execpath = hal_device_property_get_strlist_elem (d, s, num); g_free (s); s = g_strdup_printf ("%s.method_signatures", interface); sig = hal_device_property_get_strlist_elem (d, s, num); g_free (s); if (execpath != NULL && sig != NULL && strcmp (sig, signature) == 0) { HAL_INFO (("OK for method '%s' with signature '%s' on interface '%s' for UDI '%s' and execpath '%s'", method, signature, interface, udi, execpath)); return hald_exec_method (d, connection, local_interface, message, execpath); } } } } } } } return osspec_filter_function (connection, message, user_data); } /** Message handler for method invocations. All invocations on any object * or interface is routed through this function. * * @param connection D-BUS connection * @param message Message * @param user_data User data * @return What to do with the message */ DBusHandlerResult hald_dbus_filter_function (DBusConnection * connection, DBusMessage * message, void *user_data) { if (dbus_message_is_signal (message, DBUS_INTERFACE_LOCAL, "Disconnected") && strcmp (dbus_message_get_path (message), DBUS_PATH_LOCAL) == 0) { /* this is a local message; e.g. from libdbus in this process */ HAL_INFO (("Got disconnected from the system message bus; " "retrying to reconnect every 3000 ms")); dbus_connection_unref (dbus_connection); dbus_connection = NULL; g_timeout_add (3000, reinit_dbus, NULL); } else if (dbus_message_is_signal (message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) { if (services_with_locks != NULL || services_with_claims != NULL) service_deleted (message); } else return hald_dbus_filter_handle_methods (connection, message, user_data, FALSE); return DBUS_HANDLER_RESULT_HANDLED; } static DBusHandlerResult local_server_message_handler (DBusConnection *connection, DBusMessage *message, void *user_data) { /*HAL_INFO (("local_server_message_handler: destination=%s obj_path=%s interface=%s method=%s", dbus_message_get_destination (message), dbus_message_get_path (message), dbus_message_get_interface (message), dbus_message_get_member (message)));*/ if (dbus_message_is_method_call (message, "org.freedesktop.DBus", "AddMatch")) { DBusMessage *reply; /* cheat, and handle AddMatch since libhal will try to invoke this method */ reply = dbus_message_new_method_return (message); if (reply == NULL) DIE (("No memory")); if (!dbus_connection_send (connection, reply, NULL)) DIE (("No memory")); dbus_message_unref (reply); return DBUS_HANDLER_RESULT_HANDLED; } else if (dbus_message_is_signal (message, DBUS_INTERFACE_LOCAL, "Disconnected") && strcmp (dbus_message_get_path (message), DBUS_PATH_LOCAL) == 0) { GSList *i; GSList *j; HAL_INFO (("Client to local_server was disconnected")); for (i = helper_interface_handlers; i != NULL; i = j) { HelperInterfaceHandler *hih = i->data; j = g_slist_next (i); if (hih->connection == connection) { g_free (hih->interface_name); g_free (hih->introspection_xml); g_free (hih->udi); g_free (hih); helper_interface_handlers = g_slist_remove (helper_interface_handlers, i); } } dbus_connection_unref (connection); return DBUS_HANDLER_RESULT_HANDLED; } else if (dbus_message_get_type (message) == DBUS_MESSAGE_TYPE_SIGNAL) { DBusMessage *copy; /* it's a signal, just forward it onto the system message bus */ copy = dbus_message_copy (message); if (dbus_connection != NULL) { dbus_connection_send (dbus_connection, copy, NULL); } dbus_message_unref (copy); } else { return hald_dbus_filter_handle_methods (connection, message, user_data, TRUE); } return DBUS_HANDLER_RESULT_HANDLED; } static void local_server_unregister_handler (DBusConnection *connection, void *user_data) { HAL_INFO (("unregistered")); } static void local_server_handle_connection (DBusServer *server, DBusConnection *new_connection, void *data) { DBusObjectPathVTable vtable = { &local_server_unregister_handler, &local_server_message_handler, NULL, NULL, NULL, NULL}; HAL_INFO (("%d: Got a connection", getpid ())); HAL_INFO (("dbus_connection_get_is_connected = %d", dbus_connection_get_is_connected (new_connection))); /*dbus_connection_add_filter (new_connection, server_filter_function, NULL, NULL);*/ dbus_connection_register_fallback (new_connection, "/org/freedesktop", &vtable, NULL); dbus_connection_ref (new_connection); dbus_connection_setup_with_g_main (new_connection, NULL); } static DBusServer *local_server = NULL; char * hald_dbus_local_server_addr (void) { if (local_server == NULL) return NULL; return dbus_server_get_address (local_server); } gboolean hald_dbus_local_server_init (void) { gboolean ret; DBusError error; char *server_addr; ret = FALSE; /* setup a server listening on a socket so we can do point to point * connections for programs spawned by hald */ dbus_error_init (&error); if ((local_server = dbus_server_listen (HALD_DBUS_ADDRESS, &error)) == NULL) { HAL_ERROR (("Cannot create D-BUS server")); goto out; } server_addr = dbus_server_get_address (local_server); HAL_INFO (("local server is listening at %s", server_addr)); dbus_free (server_addr); dbus_server_setup_with_g_main (local_server, NULL); dbus_server_set_new_connection_function (local_server, local_server_handle_connection, NULL, NULL); ret = TRUE; out: return ret; } gboolean hald_dbus_init (void) { DBusError dbus_error; HAL_INFO (("entering")); dbus_connection_set_change_sigpipe (TRUE); dbus_error_init (&dbus_error); dbus_connection = dbus_bus_get (DBUS_BUS_SYSTEM, &dbus_error); if (dbus_connection == NULL) { HAL_ERROR (("dbus_bus_get(): %s", dbus_error.message)); return FALSE; } dbus_connection_setup_with_g_main (dbus_connection, NULL); dbus_connection_set_exit_on_disconnect (dbus_connection, FALSE); dbus_bus_request_name (dbus_connection, "org.freedesktop.Hal", 0, &dbus_error); if (dbus_error_is_set (&dbus_error)) { HAL_ERROR (("dbus_bus_request_name(): %s", dbus_error.message)); return FALSE; } dbus_connection_add_filter (dbus_connection, hald_dbus_filter_function, NULL, NULL); dbus_bus_add_match (dbus_connection, "type='signal'" ",interface='"DBUS_INTERFACE_DBUS"'" ",sender='"DBUS_SERVICE_DBUS"'" ",member='NameOwnerChanged'", NULL); return TRUE; } /** @} */